commit 0f4e1a3183ad6f93fccd88eab16b1110a9d788a0
Author: sanikapendurkar <sanika.p2201@gmail.com>
Date:   Mon Feb 10 14:24:56 2025 +0530

    Commit With Frontend and Backend in MERN

diff --git a/backend/.env b/backend/.env
new file mode 100644
index 0000000..99501b7
--- /dev/null
+++ b/backend/.env
@@ -0,0 +1,3 @@
+MONGODB_URI=mongodb://localhost:27017/collegedepartment
+EMAIL=sanika.p220104@gmail.com
+EMAIL_PASSWORD=ewtlhtfttnnxmmbf
diff --git a/backend/node_modules/.bin/mime b/backend/node_modules/.bin/mime
new file mode 100644
index 0000000..7751de3
--- /dev/null
+++ b/backend/node_modules/.bin/mime
@@ -0,0 +1,16 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*)
+        if command -v cygpath > /dev/null 2>&1; then
+            basedir=`cygpath -w "$basedir"`
+        fi
+    ;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  exec "$basedir/node"  "$basedir/../mime/cli.js" "$@"
+else 
+  exec node  "$basedir/../mime/cli.js" "$@"
+fi
diff --git a/backend/node_modules/.bin/mime.cmd b/backend/node_modules/.bin/mime.cmd
new file mode 100644
index 0000000..54491f1
--- /dev/null
+++ b/backend/node_modules/.bin/mime.cmd
@@ -0,0 +1,17 @@
+@ECHO off
+GOTO start
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
+:start
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%"  "%dp0%\..\mime\cli.js" %*
diff --git a/backend/node_modules/.bin/mime.ps1 b/backend/node_modules/.bin/mime.ps1
new file mode 100644
index 0000000..2222f40
--- /dev/null
+++ b/backend/node_modules/.bin/mime.ps1
@@ -0,0 +1,28 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "$basedir/node$exe"  "$basedir/../mime/cli.js" $args
+  } else {
+    & "$basedir/node$exe"  "$basedir/../mime/cli.js" $args
+  }
+  $ret=$LASTEXITCODE
+} else {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "node$exe"  "$basedir/../mime/cli.js" $args
+  } else {
+    & "node$exe"  "$basedir/../mime/cli.js" $args
+  }
+  $ret=$LASTEXITCODE
+}
+exit $ret
diff --git a/backend/node_modules/.bin/mkdirp b/backend/node_modules/.bin/mkdirp
new file mode 100644
index 0000000..1ab9c81
--- /dev/null
+++ b/backend/node_modules/.bin/mkdirp
@@ -0,0 +1,16 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*)
+        if command -v cygpath > /dev/null 2>&1; then
+            basedir=`cygpath -w "$basedir"`
+        fi
+    ;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  exec "$basedir/node"  "$basedir/../mkdirp/bin/cmd.js" "$@"
+else 
+  exec node  "$basedir/../mkdirp/bin/cmd.js" "$@"
+fi
diff --git a/backend/node_modules/.bin/mkdirp.cmd b/backend/node_modules/.bin/mkdirp.cmd
new file mode 100644
index 0000000..a865dd9
--- /dev/null
+++ b/backend/node_modules/.bin/mkdirp.cmd
@@ -0,0 +1,17 @@
+@ECHO off
+GOTO start
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
+:start
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%"  "%dp0%\..\mkdirp\bin\cmd.js" %*
diff --git a/backend/node_modules/.bin/mkdirp.ps1 b/backend/node_modules/.bin/mkdirp.ps1
new file mode 100644
index 0000000..911e854
--- /dev/null
+++ b/backend/node_modules/.bin/mkdirp.ps1
@@ -0,0 +1,28 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "$basedir/node$exe"  "$basedir/../mkdirp/bin/cmd.js" $args
+  } else {
+    & "$basedir/node$exe"  "$basedir/../mkdirp/bin/cmd.js" $args
+  }
+  $ret=$LASTEXITCODE
+} else {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "node$exe"  "$basedir/../mkdirp/bin/cmd.js" $args
+  } else {
+    & "node$exe"  "$basedir/../mkdirp/bin/cmd.js" $args
+  }
+  $ret=$LASTEXITCODE
+}
+exit $ret
diff --git a/backend/node_modules/.package-lock.json b/backend/node_modules/.package-lock.json
new file mode 100644
index 0000000..5b8c1c8
--- /dev/null
+++ b/backend/node_modules/.package-lock.json
@@ -0,0 +1,1349 @@
+{
+  "name": "backend",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "node_modules/@mongodb-js/saslprep": {
+      "version": "1.1.9",
+      "resolved": "https://registry.npmjs.org/@mongodb-js/saslprep/-/saslprep-1.1.9.tgz",
+      "integrity": "sha512-tVkljjeEaAhCqTzajSdgbQ6gE6f3oneVwa3iXR6csiEwXXOFsiC6Uh9iAjAhXPtqa/XMDHWjjeNH/77m/Yq2dw==",
+      "license": "MIT",
+      "dependencies": {
+        "sparse-bitfield": "^3.0.3"
+      }
+    },
+    "node_modules/@types/webidl-conversions": {
+      "version": "7.0.3",
+      "resolved": "https://registry.npmjs.org/@types/webidl-conversions/-/webidl-conversions-7.0.3.tgz",
+      "integrity": "sha512-CiJJvcRtIgzadHCYXw7dqEnMNRjhGZlYK05Mj9OyktqV8uVT8fD2BFOB7S1uwBE3Kj2Z+4UyPmFw/Ixgw/LAlA==",
+      "license": "MIT"
+    },
+    "node_modules/@types/whatwg-url": {
+      "version": "11.0.5",
+      "resolved": "https://registry.npmjs.org/@types/whatwg-url/-/whatwg-url-11.0.5.tgz",
+      "integrity": "sha512-coYR071JRaHa+xoEvvYqvnIHaVqaYrLPbsufM9BF63HkwI5Lgmy2QR8Q5K/lYDYo5AK82wOvSOS0UsLTpTG7uQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/webidl-conversions": "*"
+      }
+    },
+    "node_modules/accepts": {
+      "version": "1.3.8",
+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz",
+      "integrity": "sha512-PYAthTa2m2VKxuvSD3DPC/Gy+U+sOA1LAuT8mkmRuvw+NACSaeXEQ+NHcVF7rONl6qcaxV3Uuemwawk+7+SJLw==",
+      "license": "MIT",
+      "dependencies": {
+        "mime-types": "~2.1.34",
+        "negotiator": "0.6.3"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/append-field": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/append-field/-/append-field-1.0.0.tgz",
+      "integrity": "sha512-klpgFSWLW1ZEs8svjfb7g4qWY0YS5imI82dTg+QahUvJ8YqAY0P10Uk8tTyh9ZGuYEZEMaeJYCF5BFuX552hsw==",
+      "license": "MIT"
+    },
+    "node_modules/array-flatten": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
+      "integrity": "sha512-PCVAQswWemu6UdxsDFFX/+gVeYqKAod3D3UVm91jHwynguOwAvYPhx8nNlM++NqRcK6CxxpUafjmhIdKiHibqg==",
+      "license": "MIT"
+    },
+    "node_modules/asynckit": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
+      "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==",
+      "license": "MIT"
+    },
+    "node_modules/axios": {
+      "version": "1.7.9",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.7.9.tgz",
+      "integrity": "sha512-LhLcE7Hbiryz8oMDdDptSrWowmB4Bl6RCt6sIJKpRB4XtVf0iEgewX3au/pJqm+Py1kCASkb/FFKjxQaLtxJvw==",
+      "license": "MIT",
+      "dependencies": {
+        "follow-redirects": "^1.15.6",
+        "form-data": "^4.0.0",
+        "proxy-from-env": "^1.1.0"
+      }
+    },
+    "node_modules/body-parser": {
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+      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.20.3.tgz",
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+      "license": "MIT",
+      "dependencies": {
+        "bytes": "3.1.2",
+        "content-type": "~1.0.5",
+        "debug": "2.6.9",
+        "depd": "2.0.0",
+        "destroy": "1.2.0",
+        "http-errors": "2.0.0",
+        "iconv-lite": "0.4.24",
+        "on-finished": "2.4.1",
+        "qs": "6.13.0",
+        "raw-body": "2.5.2",
+        "type-is": "~1.6.18",
+        "unpipe": "1.0.0"
+      },
+      "engines": {
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+        "npm": "1.2.8000 || >= 1.4.16"
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+      "resolved": "https://registry.npmjs.org/bson/-/bson-6.10.2.tgz",
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+      "license": "Apache-2.0",
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+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
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+    "node_modules/call-bind-apply-helpers": {
+      "version": "1.0.1",
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+      "dependencies": {
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+        "function-bind": "^1.1.2"
+      },
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+        "get-intrinsic": "^1.2.6"
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+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
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+        "vary": "^1"
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+      "license": "MIT",
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+      "license": "MIT",
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+      "license": "BSD-2-Clause",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://dotenvx.com"
+      }
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+      "license": "MIT",
+      "dependencies": {
+        "call-bind-apply-helpers": "^1.0.1",
+        "es-errors": "^1.3.0",
+        "gopd": "^1.2.0"
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+}
diff --git a/backend/node_modules/@mongodb-js/saslprep/LICENSE b/backend/node_modules/@mongodb-js/saslprep/LICENSE
new file mode 100644
index 0000000..481c7a5
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/LICENSE
@@ -0,0 +1,22 @@
+Copyright (c) 2014 Dmitry Tsvettsikh
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/.esm-wrapper.mjs b/backend/node_modules/@mongodb-js/saslprep/dist/.esm-wrapper.mjs
new file mode 100644
index 0000000..0b46bfa
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/.esm-wrapper.mjs
@@ -0,0 +1,4 @@
+import mod from "./node.js";
+
+export default mod;
+export const saslprep = mod.saslprep;
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/browser.d.ts b/backend/node_modules/@mongodb-js/saslprep/dist/browser.d.ts
new file mode 100644
index 0000000..70a71a5
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/browser.d.ts
@@ -0,0 +1,5 @@
+declare const saslprep: (args_0: string, args_1?: {
+    allowUnassigned?: boolean | undefined;
+} | undefined) => string;
+export = saslprep;
+//# sourceMappingURL=browser.d.ts.map
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/browser.d.ts.map b/backend/node_modules/@mongodb-js/saslprep/dist/browser.d.ts.map
new file mode 100644
index 0000000..669fc64
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/browser.d.ts.map
@@ -0,0 +1 @@
+{"version":3,"file":"browser.d.ts","sourceRoot":"","sources":["../src/browser.ts"],"names":[],"mappings":"AAMA,QAAA,MAAM,QAAQ;;wBAAmC,CAAC;AAIlD,SAAS,QAAQ,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/browser.js b/backend/node_modules/@mongodb-js/saslprep/dist/browser.js
new file mode 100644
index 0000000..1bedd86
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/browser.js
@@ -0,0 +1,12 @@
+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+const index_1 = __importDefault(require("./index"));
+const memory_code_points_1 = require("./memory-code-points");
+const code_points_data_browser_1 = __importDefault(require("./code-points-data-browser"));
+const codePoints = (0, memory_code_points_1.createMemoryCodePoints)(code_points_data_browser_1.default);
+const saslprep = index_1.default.bind(null, codePoints);
+Object.assign(saslprep, { saslprep, default: saslprep });
+module.exports = saslprep;
+//# sourceMappingURL=browser.js.map
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/browser.js.map b/backend/node_modules/@mongodb-js/saslprep/dist/browser.js.map
new file mode 100644
index 0000000..40edf44
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/browser.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"browser.js","sourceRoot":"","sources":["../src/browser.ts"],"names":[],"mappings":";;;;AAAA,oDAAgC;AAChC,6DAA8D;AAC9D,0FAA8C;AAE9C,MAAM,UAAU,GAAG,IAAA,2CAAsB,EAAC,kCAAI,CAAC,CAAC;AAEhD,MAAM,QAAQ,GAAG,eAAS,CAAC,IAAI,CAAC,IAAI,EAAE,UAAU,CAAC,CAAC;AAElD,MAAM,CAAC,MAAM,CAAC,QAAQ,EAAE,EAAE,QAAQ,EAAE,OAAO,EAAE,QAAQ,EAAE,CAAC,CAAC;AAEzD,iBAAS,QAAQ,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/code-points-data-browser.d.ts b/backend/node_modules/@mongodb-js/saslprep/dist/code-points-data-browser.d.ts
new file mode 100644
index 0000000..f85af5b
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/code-points-data-browser.d.ts
@@ -0,0 +1,4 @@
+/// <reference types="node" />
+declare const data: Buffer;
+export default data;
+//# sourceMappingURL=code-points-data-browser.d.ts.map
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/code-points-data-browser.d.ts.map b/backend/node_modules/@mongodb-js/saslprep/dist/code-points-data-browser.d.ts.map
new file mode 100644
index 0000000..617b217
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/code-points-data-browser.d.ts.map
@@ -0,0 +1 @@
+{"version":3,"file":"code-points-data-browser.d.ts","sourceRoot":"","sources":["../src/code-points-data-browser.ts"],"names":[],"mappings":";AAAA,QAAA,MAAM,IAAI,QAGT,CAAC;AACF,eAAe,IAAI,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/code-points-data-browser.js b/backend/node_modules/@mongodb-js/saslprep/dist/code-points-data-browser.js
new file mode 100644
index 0000000..5ea9635
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/code-points-data-browser.js
@@ -0,0 +1,5 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const data = 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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////8///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////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'base64');
+exports.default = data;
+//# sourceMappingURL=code-points-data-browser.js.map
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/code-points-data-browser.js.map b/backend/node_modules/@mongodb-js/saslprep/dist/code-points-data-browser.js.map
new file mode 100644
index 0000000..feba477
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/code-points-data-browser.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"code-points-data-browser.js","sourceRoot":"","sources":["../src/code-points-data-browser.ts"],"names":[],"mappings":";;AAAA,MAAM,IAAI,GAAG,MAAM,CAAC,IAAI,CACtB,8sliBAA8sliB,EAC9sliB,QAAQ,CACT,CAAC;AACF,kBAAe,IAAI,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/code-points-data.d.ts b/backend/node_modules/@mongodb-js/saslprep/dist/code-points-data.d.ts
new file mode 100644
index 0000000..cc908ec
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/code-points-data.d.ts
@@ -0,0 +1,4 @@
+/// <reference types="node" />
+declare const _default: Buffer;
+export default _default;
+//# sourceMappingURL=code-points-data.d.ts.map
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/code-points-data.d.ts.map b/backend/node_modules/@mongodb-js/saslprep/dist/code-points-data.d.ts.map
new file mode 100644
index 0000000..772442e
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/code-points-data.d.ts.map
@@ -0,0 +1 @@
+{"version":3,"file":"code-points-data.d.ts","sourceRoot":"","sources":["../src/code-points-data.ts"],"names":[],"mappings":";;AAEA,wBAKE"}
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/code-points-data.js b/backend/node_modules/@mongodb-js/saslprep/dist/code-points-data.js
new file mode 100644
index 0000000..6af9a89
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/code-points-data.js
@@ -0,0 +1,5 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const zlib_1 = require("zlib");
+exports.default = (0, zlib_1.gunzipSync)(Buffer.from('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', 'base64'));
+//# sourceMappingURL=code-points-data.js.map
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/code-points-data.js.map b/backend/node_modules/@mongodb-js/saslprep/dist/code-points-data.js.map
new file mode 100644
index 0000000..1da1c55
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/code-points-data.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"code-points-data.js","sourceRoot":"","sources":["../src/code-points-data.ts"],"names":[],"mappings":";;AAAA,+BAAkC;AAElC,kBAAe,IAAA,iBAAU,EACvB,MAAM,CAAC,IAAI,CACT,knFAAknF,EAClnF,QAAQ,CACT,CACF,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/code-points-src.d.ts b/backend/node_modules/@mongodb-js/saslprep/dist/code-points-src.d.ts
new file mode 100644
index 0000000..36b6c56
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/code-points-src.d.ts
@@ -0,0 +1,7 @@
+export declare const unassigned_code_points: Set<number>;
+export declare const commonly_mapped_to_nothing: Set<number>;
+export declare const non_ASCII_space_characters: Set<number>;
+export declare const prohibited_characters: Set<number>;
+export declare const bidirectional_r_al: Set<number>;
+export declare const bidirectional_l: Set<number>;
+//# sourceMappingURL=code-points-src.d.ts.map
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/code-points-src.d.ts.map b/backend/node_modules/@mongodb-js/saslprep/dist/code-points-src.d.ts.map
new file mode 100644
index 0000000..ef0e694
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/code-points-src.d.ts.map
@@ -0,0 +1 @@
+{"version":3,"file":"code-points-src.d.ts","sourceRoot":"","sources":["../src/code-points-src.ts"],"names":[],"mappings":"AAMA,eAAO,MAAM,sBAAsB,aA6YjC,CAAC;AAMH,eAAO,MAAM,0BAA0B,aAIrC,CAAC;AAMH,eAAO,MAAM,0BAA0B,aASrC,CAAC;AAMH,eAAO,MAAM,qBAAqB,aA6GhC,CAAC;AAMH,eAAO,MAAM,kBAAkB,aAmC7B,CAAC;AAMH,eAAO,MAAM,eAAe,aAyW1B,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/code-points-src.js b/backend/node_modules/@mongodb-js/saslprep/dist/code-points-src.js
new file mode 100644
index 0000000..2caa629
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/code-points-src.js
@@ -0,0 +1,881 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.bidirectional_l = exports.bidirectional_r_al = exports.prohibited_characters = exports.non_ASCII_space_characters = exports.commonly_mapped_to_nothing = exports.unassigned_code_points = void 0;
+const util_1 = require("./util");
+exports.unassigned_code_points = new Set([
+    0x0221,
+    ...(0, util_1.range)(0x0234, 0x024f),
+    ...(0, util_1.range)(0x02ae, 0x02af),
+    ...(0, util_1.range)(0x02ef, 0x02ff),
+    ...(0, util_1.range)(0x0350, 0x035f),
+    ...(0, util_1.range)(0x0370, 0x0373),
+    ...(0, util_1.range)(0x0376, 0x0379),
+    ...(0, util_1.range)(0x037b, 0x037d),
+    ...(0, util_1.range)(0x037f, 0x0383),
+    0x038b,
+    0x038d,
+    0x03a2,
+    0x03cf,
+    ...(0, util_1.range)(0x03f7, 0x03ff),
+    0x0487,
+    0x04cf,
+    ...(0, util_1.range)(0x04f6, 0x04f7),
+    ...(0, util_1.range)(0x04fa, 0x04ff),
+    ...(0, util_1.range)(0x0510, 0x0530),
+    ...(0, util_1.range)(0x0557, 0x0558),
+    0x0560,
+    0x0588,
+    ...(0, util_1.range)(0x058b, 0x0590),
+    0x05a2,
+    0x05ba,
+    ...(0, util_1.range)(0x05c5, 0x05cf),
+    ...(0, util_1.range)(0x05eb, 0x05ef),
+    ...(0, util_1.range)(0x05f5, 0x060b),
+    ...(0, util_1.range)(0x060d, 0x061a),
+    ...(0, util_1.range)(0x061c, 0x061e),
+    0x0620,
+    ...(0, util_1.range)(0x063b, 0x063f),
+    ...(0, util_1.range)(0x0656, 0x065f),
+    ...(0, util_1.range)(0x06ee, 0x06ef),
+    0x06ff,
+    0x070e,
+    ...(0, util_1.range)(0x072d, 0x072f),
+    ...(0, util_1.range)(0x074b, 0x077f),
+    ...(0, util_1.range)(0x07b2, 0x0900),
+    0x0904,
+    ...(0, util_1.range)(0x093a, 0x093b),
+    ...(0, util_1.range)(0x094e, 0x094f),
+    ...(0, util_1.range)(0x0955, 0x0957),
+    ...(0, util_1.range)(0x0971, 0x0980),
+    0x0984,
+    ...(0, util_1.range)(0x098d, 0x098e),
+    ...(0, util_1.range)(0x0991, 0x0992),
+    0x09a9,
+    0x09b1,
+    ...(0, util_1.range)(0x09b3, 0x09b5),
+    ...(0, util_1.range)(0x09ba, 0x09bb),
+    0x09bd,
+    ...(0, util_1.range)(0x09c5, 0x09c6),
+    ...(0, util_1.range)(0x09c9, 0x09ca),
+    ...(0, util_1.range)(0x09ce, 0x09d6),
+    ...(0, util_1.range)(0x09d8, 0x09db),
+    0x09de,
+    ...(0, util_1.range)(0x09e4, 0x09e5),
+    ...(0, util_1.range)(0x09fb, 0x0a01),
+    ...(0, util_1.range)(0x0a03, 0x0a04),
+    ...(0, util_1.range)(0x0a0b, 0x0a0e),
+    ...(0, util_1.range)(0x0a11, 0x0a12),
+    0x0a29,
+    0x0a31,
+    0x0a34,
+    0x0a37,
+    ...(0, util_1.range)(0x0a3a, 0x0a3b),
+    0x0a3d,
+    ...(0, util_1.range)(0x0a43, 0x0a46),
+    ...(0, util_1.range)(0x0a49, 0x0a4a),
+    ...(0, util_1.range)(0x0a4e, 0x0a58),
+    0x0a5d,
+    ...(0, util_1.range)(0x0a5f, 0x0a65),
+    ...(0, util_1.range)(0x0a75, 0x0a80),
+    0x0a84,
+    0x0a8c,
+    0x0a8e,
+    0x0a92,
+    0x0aa9,
+    0x0ab1,
+    0x0ab4,
+    ...(0, util_1.range)(0x0aba, 0x0abb),
+    0x0ac6,
+    0x0aca,
+    ...(0, util_1.range)(0x0ace, 0x0acf),
+    ...(0, util_1.range)(0x0ad1, 0x0adf),
+    ...(0, util_1.range)(0x0ae1, 0x0ae5),
+    ...(0, util_1.range)(0x0af0, 0x0b00),
+    0x0b04,
+    ...(0, util_1.range)(0x0b0d, 0x0b0e),
+    ...(0, util_1.range)(0x0b11, 0x0b12),
+    0x0b29,
+    0x0b31,
+    ...(0, util_1.range)(0x0b34, 0x0b35),
+    ...(0, util_1.range)(0x0b3a, 0x0b3b),
+    ...(0, util_1.range)(0x0b44, 0x0b46),
+    ...(0, util_1.range)(0x0b49, 0x0b4a),
+    ...(0, util_1.range)(0x0b4e, 0x0b55),
+    ...(0, util_1.range)(0x0b58, 0x0b5b),
+    0x0b5e,
+    ...(0, util_1.range)(0x0b62, 0x0b65),
+    ...(0, util_1.range)(0x0b71, 0x0b81),
+    0x0b84,
+    ...(0, util_1.range)(0x0b8b, 0x0b8d),
+    0x0b91,
+    ...(0, util_1.range)(0x0b96, 0x0b98),
+    0x0b9b,
+    0x0b9d,
+    ...(0, util_1.range)(0x0ba0, 0x0ba2),
+    ...(0, util_1.range)(0x0ba5, 0x0ba7),
+    ...(0, util_1.range)(0x0bab, 0x0bad),
+    0x0bb6,
+    ...(0, util_1.range)(0x0bba, 0x0bbd),
+    ...(0, util_1.range)(0x0bc3, 0x0bc5),
+    0x0bc9,
+    ...(0, util_1.range)(0x0bce, 0x0bd6),
+    ...(0, util_1.range)(0x0bd8, 0x0be6),
+    ...(0, util_1.range)(0x0bf3, 0x0c00),
+    0x0c04,
+    0x0c0d,
+    0x0c11,
+    0x0c29,
+    0x0c34,
+    ...(0, util_1.range)(0x0c3a, 0x0c3d),
+    0x0c45,
+    0x0c49,
+    ...(0, util_1.range)(0x0c4e, 0x0c54),
+    ...(0, util_1.range)(0x0c57, 0x0c5f),
+    ...(0, util_1.range)(0x0c62, 0x0c65),
+    ...(0, util_1.range)(0x0c70, 0x0c81),
+    0x0c84,
+    0x0c8d,
+    0x0c91,
+    0x0ca9,
+    0x0cb4,
+    ...(0, util_1.range)(0x0cba, 0x0cbd),
+    0x0cc5,
+    0x0cc9,
+    ...(0, util_1.range)(0x0cce, 0x0cd4),
+    ...(0, util_1.range)(0x0cd7, 0x0cdd),
+    0x0cdf,
+    ...(0, util_1.range)(0x0ce2, 0x0ce5),
+    ...(0, util_1.range)(0x0cf0, 0x0d01),
+    0x0d04,
+    0x0d0d,
+    0x0d11,
+    0x0d29,
+    ...(0, util_1.range)(0x0d3a, 0x0d3d),
+    ...(0, util_1.range)(0x0d44, 0x0d45),
+    0x0d49,
+    ...(0, util_1.range)(0x0d4e, 0x0d56),
+    ...(0, util_1.range)(0x0d58, 0x0d5f),
+    ...(0, util_1.range)(0x0d62, 0x0d65),
+    ...(0, util_1.range)(0x0d70, 0x0d81),
+    0x0d84,
+    ...(0, util_1.range)(0x0d97, 0x0d99),
+    0x0db2,
+    0x0dbc,
+    ...(0, util_1.range)(0x0dbe, 0x0dbf),
+    ...(0, util_1.range)(0x0dc7, 0x0dc9),
+    ...(0, util_1.range)(0x0dcb, 0x0dce),
+    0x0dd5,
+    0x0dd7,
+    ...(0, util_1.range)(0x0de0, 0x0df1),
+    ...(0, util_1.range)(0x0df5, 0x0e00),
+    ...(0, util_1.range)(0x0e3b, 0x0e3e),
+    ...(0, util_1.range)(0x0e5c, 0x0e80),
+    0x0e83,
+    ...(0, util_1.range)(0x0e85, 0x0e86),
+    0x0e89,
+    ...(0, util_1.range)(0x0e8b, 0x0e8c),
+    ...(0, util_1.range)(0x0e8e, 0x0e93),
+    0x0e98,
+    0x0ea0,
+    0x0ea4,
+    0x0ea6,
+    ...(0, util_1.range)(0x0ea8, 0x0ea9),
+    0x0eac,
+    0x0eba,
+    ...(0, util_1.range)(0x0ebe, 0x0ebf),
+    0x0ec5,
+    0x0ec7,
+    ...(0, util_1.range)(0x0ece, 0x0ecf),
+    ...(0, util_1.range)(0x0eda, 0x0edb),
+    ...(0, util_1.range)(0x0ede, 0x0eff),
+    0x0f48,
+    ...(0, util_1.range)(0x0f6b, 0x0f70),
+    ...(0, util_1.range)(0x0f8c, 0x0f8f),
+    0x0f98,
+    0x0fbd,
+    ...(0, util_1.range)(0x0fcd, 0x0fce),
+    ...(0, util_1.range)(0x0fd0, 0x0fff),
+    0x1022,
+    0x1028,
+    0x102b,
+    ...(0, util_1.range)(0x1033, 0x1035),
+    ...(0, util_1.range)(0x103a, 0x103f),
+    ...(0, util_1.range)(0x105a, 0x109f),
+    ...(0, util_1.range)(0x10c6, 0x10cf),
+    ...(0, util_1.range)(0x10f9, 0x10fa),
+    ...(0, util_1.range)(0x10fc, 0x10ff),
+    ...(0, util_1.range)(0x115a, 0x115e),
+    ...(0, util_1.range)(0x11a3, 0x11a7),
+    ...(0, util_1.range)(0x11fa, 0x11ff),
+    0x1207,
+    0x1247,
+    0x1249,
+    ...(0, util_1.range)(0x124e, 0x124f),
+    0x1257,
+    0x1259,
+    ...(0, util_1.range)(0x125e, 0x125f),
+    0x1287,
+    0x1289,
+    ...(0, util_1.range)(0x128e, 0x128f),
+    0x12af,
+    0x12b1,
+    ...(0, util_1.range)(0x12b6, 0x12b7),
+    0x12bf,
+    0x12c1,
+    ...(0, util_1.range)(0x12c6, 0x12c7),
+    0x12cf,
+    0x12d7,
+    0x12ef,
+    0x130f,
+    0x1311,
+    ...(0, util_1.range)(0x1316, 0x1317),
+    0x131f,
+    0x1347,
+    ...(0, util_1.range)(0x135b, 0x1360),
+    ...(0, util_1.range)(0x137d, 0x139f),
+    ...(0, util_1.range)(0x13f5, 0x1400),
+    ...(0, util_1.range)(0x1677, 0x167f),
+    ...(0, util_1.range)(0x169d, 0x169f),
+    ...(0, util_1.range)(0x16f1, 0x16ff),
+    0x170d,
+    ...(0, util_1.range)(0x1715, 0x171f),
+    ...(0, util_1.range)(0x1737, 0x173f),
+    ...(0, util_1.range)(0x1754, 0x175f),
+    0x176d,
+    0x1771,
+    ...(0, util_1.range)(0x1774, 0x177f),
+    ...(0, util_1.range)(0x17dd, 0x17df),
+    ...(0, util_1.range)(0x17ea, 0x17ff),
+    0x180f,
+    ...(0, util_1.range)(0x181a, 0x181f),
+    ...(0, util_1.range)(0x1878, 0x187f),
+    ...(0, util_1.range)(0x18aa, 0x1dff),
+    ...(0, util_1.range)(0x1e9c, 0x1e9f),
+    ...(0, util_1.range)(0x1efa, 0x1eff),
+    ...(0, util_1.range)(0x1f16, 0x1f17),
+    ...(0, util_1.range)(0x1f1e, 0x1f1f),
+    ...(0, util_1.range)(0x1f46, 0x1f47),
+    ...(0, util_1.range)(0x1f4e, 0x1f4f),
+    0x1f58,
+    0x1f5a,
+    0x1f5c,
+    0x1f5e,
+    ...(0, util_1.range)(0x1f7e, 0x1f7f),
+    0x1fb5,
+    0x1fc5,
+    ...(0, util_1.range)(0x1fd4, 0x1fd5),
+    0x1fdc,
+    ...(0, util_1.range)(0x1ff0, 0x1ff1),
+    0x1ff5,
+    0x1fff,
+    ...(0, util_1.range)(0x2053, 0x2056),
+    ...(0, util_1.range)(0x2058, 0x205e),
+    ...(0, util_1.range)(0x2064, 0x2069),
+    ...(0, util_1.range)(0x2072, 0x2073),
+    ...(0, util_1.range)(0x208f, 0x209f),
+    ...(0, util_1.range)(0x20b2, 0x20cf),
+    ...(0, util_1.range)(0x20eb, 0x20ff),
+    ...(0, util_1.range)(0x213b, 0x213c),
+    ...(0, util_1.range)(0x214c, 0x2152),
+    ...(0, util_1.range)(0x2184, 0x218f),
+    ...(0, util_1.range)(0x23cf, 0x23ff),
+    ...(0, util_1.range)(0x2427, 0x243f),
+    ...(0, util_1.range)(0x244b, 0x245f),
+    0x24ff,
+    ...(0, util_1.range)(0x2614, 0x2615),
+    0x2618,
+    ...(0, util_1.range)(0x267e, 0x267f),
+    ...(0, util_1.range)(0x268a, 0x2700),
+    0x2705,
+    ...(0, util_1.range)(0x270a, 0x270b),
+    0x2728,
+    0x274c,
+    0x274e,
+    ...(0, util_1.range)(0x2753, 0x2755),
+    0x2757,
+    ...(0, util_1.range)(0x275f, 0x2760),
+    ...(0, util_1.range)(0x2795, 0x2797),
+    0x27b0,
+    ...(0, util_1.range)(0x27bf, 0x27cf),
+    ...(0, util_1.range)(0x27ec, 0x27ef),
+    ...(0, util_1.range)(0x2b00, 0x2e7f),
+    0x2e9a,
+    ...(0, util_1.range)(0x2ef4, 0x2eff),
+    ...(0, util_1.range)(0x2fd6, 0x2fef),
+    ...(0, util_1.range)(0x2ffc, 0x2fff),
+    0x3040,
+    ...(0, util_1.range)(0x3097, 0x3098),
+    ...(0, util_1.range)(0x3100, 0x3104),
+    ...(0, util_1.range)(0x312d, 0x3130),
+    0x318f,
+    ...(0, util_1.range)(0x31b8, 0x31ef),
+    ...(0, util_1.range)(0x321d, 0x321f),
+    ...(0, util_1.range)(0x3244, 0x3250),
+    ...(0, util_1.range)(0x327c, 0x327e),
+    ...(0, util_1.range)(0x32cc, 0x32cf),
+    0x32ff,
+    ...(0, util_1.range)(0x3377, 0x337a),
+    ...(0, util_1.range)(0x33de, 0x33df),
+    0x33ff,
+    ...(0, util_1.range)(0x4db6, 0x4dff),
+    ...(0, util_1.range)(0x9fa6, 0x9fff),
+    ...(0, util_1.range)(0xa48d, 0xa48f),
+    ...(0, util_1.range)(0xa4c7, 0xabff),
+    ...(0, util_1.range)(0xd7a4, 0xd7ff),
+    ...(0, util_1.range)(0xfa2e, 0xfa2f),
+    ...(0, util_1.range)(0xfa6b, 0xfaff),
+    ...(0, util_1.range)(0xfb07, 0xfb12),
+    ...(0, util_1.range)(0xfb18, 0xfb1c),
+    0xfb37,
+    0xfb3d,
+    0xfb3f,
+    0xfb42,
+    0xfb45,
+    ...(0, util_1.range)(0xfbb2, 0xfbd2),
+    ...(0, util_1.range)(0xfd40, 0xfd4f),
+    ...(0, util_1.range)(0xfd90, 0xfd91),
+    ...(0, util_1.range)(0xfdc8, 0xfdcf),
+    ...(0, util_1.range)(0xfdfd, 0xfdff),
+    ...(0, util_1.range)(0xfe10, 0xfe1f),
+    ...(0, util_1.range)(0xfe24, 0xfe2f),
+    ...(0, util_1.range)(0xfe47, 0xfe48),
+    0xfe53,
+    0xfe67,
+    ...(0, util_1.range)(0xfe6c, 0xfe6f),
+    0xfe75,
+    ...(0, util_1.range)(0xfefd, 0xfefe),
+    0xff00,
+    ...(0, util_1.range)(0xffbf, 0xffc1),
+    ...(0, util_1.range)(0xffc8, 0xffc9),
+    ...(0, util_1.range)(0xffd0, 0xffd1),
+    ...(0, util_1.range)(0xffd8, 0xffd9),
+    ...(0, util_1.range)(0xffdd, 0xffdf),
+    0xffe7,
+    ...(0, util_1.range)(0xffef, 0xfff8),
+    ...(0, util_1.range)(0x10000, 0x102ff),
+    0x1031f,
+    ...(0, util_1.range)(0x10324, 0x1032f),
+    ...(0, util_1.range)(0x1034b, 0x103ff),
+    ...(0, util_1.range)(0x10426, 0x10427),
+    ...(0, util_1.range)(0x1044e, 0x1cfff),
+    ...(0, util_1.range)(0x1d0f6, 0x1d0ff),
+    ...(0, util_1.range)(0x1d127, 0x1d129),
+    ...(0, util_1.range)(0x1d1de, 0x1d3ff),
+    0x1d455,
+    0x1d49d,
+    ...(0, util_1.range)(0x1d4a0, 0x1d4a1),
+    ...(0, util_1.range)(0x1d4a3, 0x1d4a4),
+    ...(0, util_1.range)(0x1d4a7, 0x1d4a8),
+    0x1d4ad,
+    0x1d4ba,
+    0x1d4bc,
+    0x1d4c1,
+    0x1d4c4,
+    0x1d506,
+    ...(0, util_1.range)(0x1d50b, 0x1d50c),
+    0x1d515,
+    0x1d51d,
+    0x1d53a,
+    0x1d53f,
+    0x1d545,
+    ...(0, util_1.range)(0x1d547, 0x1d549),
+    0x1d551,
+    ...(0, util_1.range)(0x1d6a4, 0x1d6a7),
+    ...(0, util_1.range)(0x1d7ca, 0x1d7cd),
+    ...(0, util_1.range)(0x1d800, 0x1fffd),
+    ...(0, util_1.range)(0x2a6d7, 0x2f7ff),
+    ...(0, util_1.range)(0x2fa1e, 0x2fffd),
+    ...(0, util_1.range)(0x30000, 0x3fffd),
+    ...(0, util_1.range)(0x40000, 0x4fffd),
+    ...(0, util_1.range)(0x50000, 0x5fffd),
+    ...(0, util_1.range)(0x60000, 0x6fffd),
+    ...(0, util_1.range)(0x70000, 0x7fffd),
+    ...(0, util_1.range)(0x80000, 0x8fffd),
+    ...(0, util_1.range)(0x90000, 0x9fffd),
+    ...(0, util_1.range)(0xa0000, 0xafffd),
+    ...(0, util_1.range)(0xb0000, 0xbfffd),
+    ...(0, util_1.range)(0xc0000, 0xcfffd),
+    ...(0, util_1.range)(0xd0000, 0xdfffd),
+    0xe0000,
+    ...(0, util_1.range)(0xe0002, 0xe001f),
+    ...(0, util_1.range)(0xe0080, 0xefffd),
+]);
+exports.commonly_mapped_to_nothing = new Set([
+    0x00ad, 0x034f, 0x1806, 0x180b, 0x180c, 0x180d, 0x200b, 0x200c, 0x200d,
+    0x2060, 0xfe00, 0xfe01, 0xfe02, 0xfe03, 0xfe04, 0xfe05, 0xfe06, 0xfe07,
+    0xfe08, 0xfe09, 0xfe0a, 0xfe0b, 0xfe0c, 0xfe0d, 0xfe0e, 0xfe0f, 0xfeff,
+]);
+exports.non_ASCII_space_characters = new Set([
+    0x00a0, 0x1680,
+    0x2000, 0x2001, 0x2002,
+    0x2003, 0x2004,
+    0x2005, 0x2006,
+    0x2007, 0x2008,
+    0x2009, 0x200a,
+    0x200b, 0x202f,
+    0x205f, 0x3000,
+]);
+exports.prohibited_characters = new Set([
+    ...exports.non_ASCII_space_characters,
+    ...(0, util_1.range)(0, 0x001f),
+    0x007f,
+    ...(0, util_1.range)(0x0080, 0x009f),
+    0x06dd,
+    0x070f,
+    0x180e,
+    0x200c,
+    0x200d,
+    0x2028,
+    0x2029,
+    0x2060,
+    0x2061,
+    0x2062,
+    0x2063,
+    ...(0, util_1.range)(0x206a, 0x206f),
+    0xfeff,
+    ...(0, util_1.range)(0xfff9, 0xfffc),
+    ...(0, util_1.range)(0x1d173, 0x1d17a),
+    ...(0, util_1.range)(0xe000, 0xf8ff),
+    ...(0, util_1.range)(0xf0000, 0xffffd),
+    ...(0, util_1.range)(0x100000, 0x10fffd),
+    ...(0, util_1.range)(0xfdd0, 0xfdef),
+    ...(0, util_1.range)(0xfffe, 0xffff),
+    ...(0, util_1.range)(0x1fffe, 0x1ffff),
+    ...(0, util_1.range)(0x2fffe, 0x2ffff),
+    ...(0, util_1.range)(0x3fffe, 0x3ffff),
+    ...(0, util_1.range)(0x4fffe, 0x4ffff),
+    ...(0, util_1.range)(0x5fffe, 0x5ffff),
+    ...(0, util_1.range)(0x6fffe, 0x6ffff),
+    ...(0, util_1.range)(0x7fffe, 0x7ffff),
+    ...(0, util_1.range)(0x8fffe, 0x8ffff),
+    ...(0, util_1.range)(0x9fffe, 0x9ffff),
+    ...(0, util_1.range)(0xafffe, 0xaffff),
+    ...(0, util_1.range)(0xbfffe, 0xbffff),
+    ...(0, util_1.range)(0xcfffe, 0xcffff),
+    ...(0, util_1.range)(0xdfffe, 0xdffff),
+    ...(0, util_1.range)(0xefffe, 0xeffff),
+    ...(0, util_1.range)(0x10fffe, 0x10ffff),
+    ...(0, util_1.range)(0xd800, 0xdfff),
+    0xfff9,
+    0xfffa,
+    0xfffb,
+    0xfffc,
+    0xfffd,
+    ...(0, util_1.range)(0x2ff0, 0x2ffb),
+    0x0340,
+    0x0341,
+    0x200e,
+    0x200f,
+    0x202a,
+    0x202b,
+    0x202c,
+    0x202d,
+    0x202e,
+    0x206a,
+    0x206b,
+    0x206c,
+    0x206d,
+    0x206e,
+    0x206f,
+    0xe0001,
+    ...(0, util_1.range)(0xe0020, 0xe007f),
+]);
+exports.bidirectional_r_al = new Set([
+    0x05be,
+    0x05c0,
+    0x05c3,
+    ...(0, util_1.range)(0x05d0, 0x05ea),
+    ...(0, util_1.range)(0x05f0, 0x05f4),
+    0x061b,
+    0x061f,
+    ...(0, util_1.range)(0x0621, 0x063a),
+    ...(0, util_1.range)(0x0640, 0x064a),
+    ...(0, util_1.range)(0x066d, 0x066f),
+    ...(0, util_1.range)(0x0671, 0x06d5),
+    0x06dd,
+    ...(0, util_1.range)(0x06e5, 0x06e6),
+    ...(0, util_1.range)(0x06fa, 0x06fe),
+    ...(0, util_1.range)(0x0700, 0x070d),
+    0x0710,
+    ...(0, util_1.range)(0x0712, 0x072c),
+    ...(0, util_1.range)(0x0780, 0x07a5),
+    0x07b1,
+    0x200f,
+    0xfb1d,
+    ...(0, util_1.range)(0xfb1f, 0xfb28),
+    ...(0, util_1.range)(0xfb2a, 0xfb36),
+    ...(0, util_1.range)(0xfb38, 0xfb3c),
+    0xfb3e,
+    ...(0, util_1.range)(0xfb40, 0xfb41),
+    ...(0, util_1.range)(0xfb43, 0xfb44),
+    ...(0, util_1.range)(0xfb46, 0xfbb1),
+    ...(0, util_1.range)(0xfbd3, 0xfd3d),
+    ...(0, util_1.range)(0xfd50, 0xfd8f),
+    ...(0, util_1.range)(0xfd92, 0xfdc7),
+    ...(0, util_1.range)(0xfdf0, 0xfdfc),
+    ...(0, util_1.range)(0xfe70, 0xfe74),
+    ...(0, util_1.range)(0xfe76, 0xfefc),
+]);
+exports.bidirectional_l = new Set([
+    ...(0, util_1.range)(0x0041, 0x005a),
+    ...(0, util_1.range)(0x0061, 0x007a),
+    0x00aa,
+    0x00b5,
+    0x00ba,
+    ...(0, util_1.range)(0x00c0, 0x00d6),
+    ...(0, util_1.range)(0x00d8, 0x00f6),
+    ...(0, util_1.range)(0x00f8, 0x0220),
+    ...(0, util_1.range)(0x0222, 0x0233),
+    ...(0, util_1.range)(0x0250, 0x02ad),
+    ...(0, util_1.range)(0x02b0, 0x02b8),
+    ...(0, util_1.range)(0x02bb, 0x02c1),
+    ...(0, util_1.range)(0x02d0, 0x02d1),
+    ...(0, util_1.range)(0x02e0, 0x02e4),
+    0x02ee,
+    0x037a,
+    0x0386,
+    ...(0, util_1.range)(0x0388, 0x038a),
+    0x038c,
+    ...(0, util_1.range)(0x038e, 0x03a1),
+    ...(0, util_1.range)(0x03a3, 0x03ce),
+    ...(0, util_1.range)(0x03d0, 0x03f5),
+    ...(0, util_1.range)(0x0400, 0x0482),
+    ...(0, util_1.range)(0x048a, 0x04ce),
+    ...(0, util_1.range)(0x04d0, 0x04f5),
+    ...(0, util_1.range)(0x04f8, 0x04f9),
+    ...(0, util_1.range)(0x0500, 0x050f),
+    ...(0, util_1.range)(0x0531, 0x0556),
+    ...(0, util_1.range)(0x0559, 0x055f),
+    ...(0, util_1.range)(0x0561, 0x0587),
+    0x0589,
+    0x0903,
+    ...(0, util_1.range)(0x0905, 0x0939),
+    ...(0, util_1.range)(0x093d, 0x0940),
+    ...(0, util_1.range)(0x0949, 0x094c),
+    0x0950,
+    ...(0, util_1.range)(0x0958, 0x0961),
+    ...(0, util_1.range)(0x0964, 0x0970),
+    ...(0, util_1.range)(0x0982, 0x0983),
+    ...(0, util_1.range)(0x0985, 0x098c),
+    ...(0, util_1.range)(0x098f, 0x0990),
+    ...(0, util_1.range)(0x0993, 0x09a8),
+    ...(0, util_1.range)(0x09aa, 0x09b0),
+    0x09b2,
+    ...(0, util_1.range)(0x09b6, 0x09b9),
+    ...(0, util_1.range)(0x09be, 0x09c0),
+    ...(0, util_1.range)(0x09c7, 0x09c8),
+    ...(0, util_1.range)(0x09cb, 0x09cc),
+    0x09d7,
+    ...(0, util_1.range)(0x09dc, 0x09dd),
+    ...(0, util_1.range)(0x09df, 0x09e1),
+    ...(0, util_1.range)(0x09e6, 0x09f1),
+    ...(0, util_1.range)(0x09f4, 0x09fa),
+    ...(0, util_1.range)(0x0a05, 0x0a0a),
+    ...(0, util_1.range)(0x0a0f, 0x0a10),
+    ...(0, util_1.range)(0x0a13, 0x0a28),
+    ...(0, util_1.range)(0x0a2a, 0x0a30),
+    ...(0, util_1.range)(0x0a32, 0x0a33),
+    ...(0, util_1.range)(0x0a35, 0x0a36),
+    ...(0, util_1.range)(0x0a38, 0x0a39),
+    ...(0, util_1.range)(0x0a3e, 0x0a40),
+    ...(0, util_1.range)(0x0a59, 0x0a5c),
+    0x0a5e,
+    ...(0, util_1.range)(0x0a66, 0x0a6f),
+    ...(0, util_1.range)(0x0a72, 0x0a74),
+    0x0a83,
+    ...(0, util_1.range)(0x0a85, 0x0a8b),
+    0x0a8d,
+    ...(0, util_1.range)(0x0a8f, 0x0a91),
+    ...(0, util_1.range)(0x0a93, 0x0aa8),
+    ...(0, util_1.range)(0x0aaa, 0x0ab0),
+    ...(0, util_1.range)(0x0ab2, 0x0ab3),
+    ...(0, util_1.range)(0x0ab5, 0x0ab9),
+    ...(0, util_1.range)(0x0abd, 0x0ac0),
+    0x0ac9,
+    ...(0, util_1.range)(0x0acb, 0x0acc),
+    0x0ad0,
+    0x0ae0,
+    ...(0, util_1.range)(0x0ae6, 0x0aef),
+    ...(0, util_1.range)(0x0b02, 0x0b03),
+    ...(0, util_1.range)(0x0b05, 0x0b0c),
+    ...(0, util_1.range)(0x0b0f, 0x0b10),
+    ...(0, util_1.range)(0x0b13, 0x0b28),
+    ...(0, util_1.range)(0x0b2a, 0x0b30),
+    ...(0, util_1.range)(0x0b32, 0x0b33),
+    ...(0, util_1.range)(0x0b36, 0x0b39),
+    ...(0, util_1.range)(0x0b3d, 0x0b3e),
+    0x0b40,
+    ...(0, util_1.range)(0x0b47, 0x0b48),
+    ...(0, util_1.range)(0x0b4b, 0x0b4c),
+    0x0b57,
+    ...(0, util_1.range)(0x0b5c, 0x0b5d),
+    ...(0, util_1.range)(0x0b5f, 0x0b61),
+    ...(0, util_1.range)(0x0b66, 0x0b70),
+    0x0b83,
+    ...(0, util_1.range)(0x0b85, 0x0b8a),
+    ...(0, util_1.range)(0x0b8e, 0x0b90),
+    ...(0, util_1.range)(0x0b92, 0x0b95),
+    ...(0, util_1.range)(0x0b99, 0x0b9a),
+    0x0b9c,
+    ...(0, util_1.range)(0x0b9e, 0x0b9f),
+    ...(0, util_1.range)(0x0ba3, 0x0ba4),
+    ...(0, util_1.range)(0x0ba8, 0x0baa),
+    ...(0, util_1.range)(0x0bae, 0x0bb5),
+    ...(0, util_1.range)(0x0bb7, 0x0bb9),
+    ...(0, util_1.range)(0x0bbe, 0x0bbf),
+    ...(0, util_1.range)(0x0bc1, 0x0bc2),
+    ...(0, util_1.range)(0x0bc6, 0x0bc8),
+    ...(0, util_1.range)(0x0bca, 0x0bcc),
+    0x0bd7,
+    ...(0, util_1.range)(0x0be7, 0x0bf2),
+    ...(0, util_1.range)(0x0c01, 0x0c03),
+    ...(0, util_1.range)(0x0c05, 0x0c0c),
+    ...(0, util_1.range)(0x0c0e, 0x0c10),
+    ...(0, util_1.range)(0x0c12, 0x0c28),
+    ...(0, util_1.range)(0x0c2a, 0x0c33),
+    ...(0, util_1.range)(0x0c35, 0x0c39),
+    ...(0, util_1.range)(0x0c41, 0x0c44),
+    ...(0, util_1.range)(0x0c60, 0x0c61),
+    ...(0, util_1.range)(0x0c66, 0x0c6f),
+    ...(0, util_1.range)(0x0c82, 0x0c83),
+    ...(0, util_1.range)(0x0c85, 0x0c8c),
+    ...(0, util_1.range)(0x0c8e, 0x0c90),
+    ...(0, util_1.range)(0x0c92, 0x0ca8),
+    ...(0, util_1.range)(0x0caa, 0x0cb3),
+    ...(0, util_1.range)(0x0cb5, 0x0cb9),
+    0x0cbe,
+    ...(0, util_1.range)(0x0cc0, 0x0cc4),
+    ...(0, util_1.range)(0x0cc7, 0x0cc8),
+    ...(0, util_1.range)(0x0cca, 0x0ccb),
+    ...(0, util_1.range)(0x0cd5, 0x0cd6),
+    0x0cde,
+    ...(0, util_1.range)(0x0ce0, 0x0ce1),
+    ...(0, util_1.range)(0x0ce6, 0x0cef),
+    ...(0, util_1.range)(0x0d02, 0x0d03),
+    ...(0, util_1.range)(0x0d05, 0x0d0c),
+    ...(0, util_1.range)(0x0d0e, 0x0d10),
+    ...(0, util_1.range)(0x0d12, 0x0d28),
+    ...(0, util_1.range)(0x0d2a, 0x0d39),
+    ...(0, util_1.range)(0x0d3e, 0x0d40),
+    ...(0, util_1.range)(0x0d46, 0x0d48),
+    ...(0, util_1.range)(0x0d4a, 0x0d4c),
+    0x0d57,
+    ...(0, util_1.range)(0x0d60, 0x0d61),
+    ...(0, util_1.range)(0x0d66, 0x0d6f),
+    ...(0, util_1.range)(0x0d82, 0x0d83),
+    ...(0, util_1.range)(0x0d85, 0x0d96),
+    ...(0, util_1.range)(0x0d9a, 0x0db1),
+    ...(0, util_1.range)(0x0db3, 0x0dbb),
+    0x0dbd,
+    ...(0, util_1.range)(0x0dc0, 0x0dc6),
+    ...(0, util_1.range)(0x0dcf, 0x0dd1),
+    ...(0, util_1.range)(0x0dd8, 0x0ddf),
+    ...(0, util_1.range)(0x0df2, 0x0df4),
+    ...(0, util_1.range)(0x0e01, 0x0e30),
+    ...(0, util_1.range)(0x0e32, 0x0e33),
+    ...(0, util_1.range)(0x0e40, 0x0e46),
+    ...(0, util_1.range)(0x0e4f, 0x0e5b),
+    ...(0, util_1.range)(0x0e81, 0x0e82),
+    0x0e84,
+    ...(0, util_1.range)(0x0e87, 0x0e88),
+    0x0e8a,
+    0x0e8d,
+    ...(0, util_1.range)(0x0e94, 0x0e97),
+    ...(0, util_1.range)(0x0e99, 0x0e9f),
+    ...(0, util_1.range)(0x0ea1, 0x0ea3),
+    0x0ea5,
+    0x0ea7,
+    ...(0, util_1.range)(0x0eaa, 0x0eab),
+    ...(0, util_1.range)(0x0ead, 0x0eb0),
+    ...(0, util_1.range)(0x0eb2, 0x0eb3),
+    0x0ebd,
+    ...(0, util_1.range)(0x0ec0, 0x0ec4),
+    0x0ec6,
+    ...(0, util_1.range)(0x0ed0, 0x0ed9),
+    ...(0, util_1.range)(0x0edc, 0x0edd),
+    ...(0, util_1.range)(0x0f00, 0x0f17),
+    ...(0, util_1.range)(0x0f1a, 0x0f34),
+    0x0f36,
+    0x0f38,
+    ...(0, util_1.range)(0x0f3e, 0x0f47),
+    ...(0, util_1.range)(0x0f49, 0x0f6a),
+    0x0f7f,
+    0x0f85,
+    ...(0, util_1.range)(0x0f88, 0x0f8b),
+    ...(0, util_1.range)(0x0fbe, 0x0fc5),
+    ...(0, util_1.range)(0x0fc7, 0x0fcc),
+    0x0fcf,
+    ...(0, util_1.range)(0x1000, 0x1021),
+    ...(0, util_1.range)(0x1023, 0x1027),
+    ...(0, util_1.range)(0x1029, 0x102a),
+    0x102c,
+    0x1031,
+    0x1038,
+    ...(0, util_1.range)(0x1040, 0x1057),
+    ...(0, util_1.range)(0x10a0, 0x10c5),
+    ...(0, util_1.range)(0x10d0, 0x10f8),
+    0x10fb,
+    ...(0, util_1.range)(0x1100, 0x1159),
+    ...(0, util_1.range)(0x115f, 0x11a2),
+    ...(0, util_1.range)(0x11a8, 0x11f9),
+    ...(0, util_1.range)(0x1200, 0x1206),
+    ...(0, util_1.range)(0x1208, 0x1246),
+    0x1248,
+    ...(0, util_1.range)(0x124a, 0x124d),
+    ...(0, util_1.range)(0x1250, 0x1256),
+    0x1258,
+    ...(0, util_1.range)(0x125a, 0x125d),
+    ...(0, util_1.range)(0x1260, 0x1286),
+    0x1288,
+    ...(0, util_1.range)(0x128a, 0x128d),
+    ...(0, util_1.range)(0x1290, 0x12ae),
+    0x12b0,
+    ...(0, util_1.range)(0x12b2, 0x12b5),
+    ...(0, util_1.range)(0x12b8, 0x12be),
+    0x12c0,
+    ...(0, util_1.range)(0x12c2, 0x12c5),
+    ...(0, util_1.range)(0x12c8, 0x12ce),
+    ...(0, util_1.range)(0x12d0, 0x12d6),
+    ...(0, util_1.range)(0x12d8, 0x12ee),
+    ...(0, util_1.range)(0x12f0, 0x130e),
+    0x1310,
+    ...(0, util_1.range)(0x1312, 0x1315),
+    ...(0, util_1.range)(0x1318, 0x131e),
+    ...(0, util_1.range)(0x1320, 0x1346),
+    ...(0, util_1.range)(0x1348, 0x135a),
+    ...(0, util_1.range)(0x1361, 0x137c),
+    ...(0, util_1.range)(0x13a0, 0x13f4),
+    ...(0, util_1.range)(0x1401, 0x1676),
+    ...(0, util_1.range)(0x1681, 0x169a),
+    ...(0, util_1.range)(0x16a0, 0x16f0),
+    ...(0, util_1.range)(0x1700, 0x170c),
+    ...(0, util_1.range)(0x170e, 0x1711),
+    ...(0, util_1.range)(0x1720, 0x1731),
+    ...(0, util_1.range)(0x1735, 0x1736),
+    ...(0, util_1.range)(0x1740, 0x1751),
+    ...(0, util_1.range)(0x1760, 0x176c),
+    ...(0, util_1.range)(0x176e, 0x1770),
+    ...(0, util_1.range)(0x1780, 0x17b6),
+    ...(0, util_1.range)(0x17be, 0x17c5),
+    ...(0, util_1.range)(0x17c7, 0x17c8),
+    ...(0, util_1.range)(0x17d4, 0x17da),
+    0x17dc,
+    ...(0, util_1.range)(0x17e0, 0x17e9),
+    ...(0, util_1.range)(0x1810, 0x1819),
+    ...(0, util_1.range)(0x1820, 0x1877),
+    ...(0, util_1.range)(0x1880, 0x18a8),
+    ...(0, util_1.range)(0x1e00, 0x1e9b),
+    ...(0, util_1.range)(0x1ea0, 0x1ef9),
+    ...(0, util_1.range)(0x1f00, 0x1f15),
+    ...(0, util_1.range)(0x1f18, 0x1f1d),
+    ...(0, util_1.range)(0x1f20, 0x1f45),
+    ...(0, util_1.range)(0x1f48, 0x1f4d),
+    ...(0, util_1.range)(0x1f50, 0x1f57),
+    0x1f59,
+    0x1f5b,
+    0x1f5d,
+    ...(0, util_1.range)(0x1f5f, 0x1f7d),
+    ...(0, util_1.range)(0x1f80, 0x1fb4),
+    ...(0, util_1.range)(0x1fb6, 0x1fbc),
+    0x1fbe,
+    ...(0, util_1.range)(0x1fc2, 0x1fc4),
+    ...(0, util_1.range)(0x1fc6, 0x1fcc),
+    ...(0, util_1.range)(0x1fd0, 0x1fd3),
+    ...(0, util_1.range)(0x1fd6, 0x1fdb),
+    ...(0, util_1.range)(0x1fe0, 0x1fec),
+    ...(0, util_1.range)(0x1ff2, 0x1ff4),
+    ...(0, util_1.range)(0x1ff6, 0x1ffc),
+    0x200e,
+    0x2071,
+    0x207f,
+    0x2102,
+    0x2107,
+    ...(0, util_1.range)(0x210a, 0x2113),
+    0x2115,
+    ...(0, util_1.range)(0x2119, 0x211d),
+    0x2124,
+    0x2126,
+    0x2128,
+    ...(0, util_1.range)(0x212a, 0x212d),
+    ...(0, util_1.range)(0x212f, 0x2131),
+    ...(0, util_1.range)(0x2133, 0x2139),
+    ...(0, util_1.range)(0x213d, 0x213f),
+    ...(0, util_1.range)(0x2145, 0x2149),
+    ...(0, util_1.range)(0x2160, 0x2183),
+    ...(0, util_1.range)(0x2336, 0x237a),
+    0x2395,
+    ...(0, util_1.range)(0x249c, 0x24e9),
+    ...(0, util_1.range)(0x3005, 0x3007),
+    ...(0, util_1.range)(0x3021, 0x3029),
+    ...(0, util_1.range)(0x3031, 0x3035),
+    ...(0, util_1.range)(0x3038, 0x303c),
+    ...(0, util_1.range)(0x3041, 0x3096),
+    ...(0, util_1.range)(0x309d, 0x309f),
+    ...(0, util_1.range)(0x30a1, 0x30fa),
+    ...(0, util_1.range)(0x30fc, 0x30ff),
+    ...(0, util_1.range)(0x3105, 0x312c),
+    ...(0, util_1.range)(0x3131, 0x318e),
+    ...(0, util_1.range)(0x3190, 0x31b7),
+    ...(0, util_1.range)(0x31f0, 0x321c),
+    ...(0, util_1.range)(0x3220, 0x3243),
+    ...(0, util_1.range)(0x3260, 0x327b),
+    ...(0, util_1.range)(0x327f, 0x32b0),
+    ...(0, util_1.range)(0x32c0, 0x32cb),
+    ...(0, util_1.range)(0x32d0, 0x32fe),
+    ...(0, util_1.range)(0x3300, 0x3376),
+    ...(0, util_1.range)(0x337b, 0x33dd),
+    ...(0, util_1.range)(0x33e0, 0x33fe),
+    ...(0, util_1.range)(0x3400, 0x4db5),
+    ...(0, util_1.range)(0x4e00, 0x9fa5),
+    ...(0, util_1.range)(0xa000, 0xa48c),
+    ...(0, util_1.range)(0xac00, 0xd7a3),
+    ...(0, util_1.range)(0xd800, 0xfa2d),
+    ...(0, util_1.range)(0xfa30, 0xfa6a),
+    ...(0, util_1.range)(0xfb00, 0xfb06),
+    ...(0, util_1.range)(0xfb13, 0xfb17),
+    ...(0, util_1.range)(0xff21, 0xff3a),
+    ...(0, util_1.range)(0xff41, 0xff5a),
+    ...(0, util_1.range)(0xff66, 0xffbe),
+    ...(0, util_1.range)(0xffc2, 0xffc7),
+    ...(0, util_1.range)(0xffca, 0xffcf),
+    ...(0, util_1.range)(0xffd2, 0xffd7),
+    ...(0, util_1.range)(0xffda, 0xffdc),
+    ...(0, util_1.range)(0x10300, 0x1031e),
+    ...(0, util_1.range)(0x10320, 0x10323),
+    ...(0, util_1.range)(0x10330, 0x1034a),
+    ...(0, util_1.range)(0x10400, 0x10425),
+    ...(0, util_1.range)(0x10428, 0x1044d),
+    ...(0, util_1.range)(0x1d000, 0x1d0f5),
+    ...(0, util_1.range)(0x1d100, 0x1d126),
+    ...(0, util_1.range)(0x1d12a, 0x1d166),
+    ...(0, util_1.range)(0x1d16a, 0x1d172),
+    ...(0, util_1.range)(0x1d183, 0x1d184),
+    ...(0, util_1.range)(0x1d18c, 0x1d1a9),
+    ...(0, util_1.range)(0x1d1ae, 0x1d1dd),
+    ...(0, util_1.range)(0x1d400, 0x1d454),
+    ...(0, util_1.range)(0x1d456, 0x1d49c),
+    ...(0, util_1.range)(0x1d49e, 0x1d49f),
+    0x1d4a2,
+    ...(0, util_1.range)(0x1d4a5, 0x1d4a6),
+    ...(0, util_1.range)(0x1d4a9, 0x1d4ac),
+    ...(0, util_1.range)(0x1d4ae, 0x1d4b9),
+    0x1d4bb,
+    ...(0, util_1.range)(0x1d4bd, 0x1d4c0),
+    ...(0, util_1.range)(0x1d4c2, 0x1d4c3),
+    ...(0, util_1.range)(0x1d4c5, 0x1d505),
+    ...(0, util_1.range)(0x1d507, 0x1d50a),
+    ...(0, util_1.range)(0x1d50d, 0x1d514),
+    ...(0, util_1.range)(0x1d516, 0x1d51c),
+    ...(0, util_1.range)(0x1d51e, 0x1d539),
+    ...(0, util_1.range)(0x1d53b, 0x1d53e),
+    ...(0, util_1.range)(0x1d540, 0x1d544),
+    0x1d546,
+    ...(0, util_1.range)(0x1d54a, 0x1d550),
+    ...(0, util_1.range)(0x1d552, 0x1d6a3),
+    ...(0, util_1.range)(0x1d6a8, 0x1d7c9),
+    ...(0, util_1.range)(0x20000, 0x2a6d6),
+    ...(0, util_1.range)(0x2f800, 0x2fa1d),
+    ...(0, util_1.range)(0xf0000, 0xffffd),
+    ...(0, util_1.range)(0x100000, 0x10fffd),
+]);
+//# sourceMappingURL=code-points-src.js.map
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/code-points-src.js.map b/backend/node_modules/@mongodb-js/saslprep/dist/code-points-src.js.map
new file mode 100644
index 0000000..dfb14ea
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/code-points-src.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/generate-code-points.d.ts b/backend/node_modules/@mongodb-js/saslprep/dist/generate-code-points.d.ts
new file mode 100644
index 0000000..5a83ab2
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/generate-code-points.d.ts
@@ -0,0 +1,2 @@
+export {};
+//# sourceMappingURL=generate-code-points.d.ts.map
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/generate-code-points.d.ts.map b/backend/node_modules/@mongodb-js/saslprep/dist/generate-code-points.d.ts.map
new file mode 100644
index 0000000..b102903
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/generate-code-points.d.ts.map
@@ -0,0 +1 @@
+{"version":3,"file":"generate-code-points.d.ts","sourceRoot":"","sources":["../src/generate-code-points.ts"],"names":[],"mappings":""}
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/generate-code-points.js b/backend/node_modules/@mongodb-js/saslprep/dist/generate-code-points.js
new file mode 100644
index 0000000..5dbf948
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/generate-code-points.js
@@ -0,0 +1,73 @@
+"use strict";
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    var desc = Object.getOwnPropertyDescriptor(m, k);
+    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
+      desc = { enumerable: true, get: function() { return m[k]; } };
+    }
+    Object.defineProperty(o, k2, desc);
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
+    Object.defineProperty(o, "default", { enumerable: true, value: v });
+}) : function(o, v) {
+    o["default"] = v;
+});
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    __setModuleDefault(result, mod);
+    return result;
+};
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const zlib_1 = require("zlib");
+const sparse_bitfield_1 = __importDefault(require("sparse-bitfield"));
+const codePoints = __importStar(require("./code-points-src"));
+const fs_1 = require("fs");
+const prettier = __importStar(require("prettier"));
+const unassigned_code_points = (0, sparse_bitfield_1.default)();
+const commonly_mapped_to_nothing = (0, sparse_bitfield_1.default)();
+const non_ascii_space_characters = (0, sparse_bitfield_1.default)();
+const prohibited_characters = (0, sparse_bitfield_1.default)();
+const bidirectional_r_al = (0, sparse_bitfield_1.default)();
+const bidirectional_l = (0, sparse_bitfield_1.default)();
+function traverse(bits, src) {
+    for (const code of src.keys()) {
+        bits.set(code, true);
+    }
+    const buffer = bits.toBuffer();
+    return Buffer.concat([createSize(buffer), buffer]);
+}
+function createSize(buffer) {
+    const buf = Buffer.alloc(4);
+    buf.writeUInt32BE(buffer.length);
+    return buf;
+}
+const memory = [];
+memory.push(traverse(unassigned_code_points, codePoints.unassigned_code_points), traverse(commonly_mapped_to_nothing, codePoints.commonly_mapped_to_nothing), traverse(non_ascii_space_characters, codePoints.non_ASCII_space_characters), traverse(prohibited_characters, codePoints.prohibited_characters), traverse(bidirectional_r_al, codePoints.bidirectional_r_al), traverse(bidirectional_l, codePoints.bidirectional_l));
+async function writeCodepoints() {
+    const config = await prettier.resolveConfig(__dirname);
+    const formatOptions = { ...config, parser: 'typescript' };
+    function write(stream, chunk) {
+        return new Promise((resolve) => stream.write(chunk, () => resolve()));
+    }
+    await write((0, fs_1.createWriteStream)(process.argv[2]), prettier.format(`import { gunzipSync } from 'zlib';
+  
+  export default gunzipSync(
+    Buffer.from(
+      '${(0, zlib_1.gzipSync)(Buffer.concat(memory), { level: 9 }).toString('base64')}',
+      'base64'
+    )
+  );
+  `, formatOptions));
+    const fsStreamUncompressedData = (0, fs_1.createWriteStream)(process.argv[3]);
+    await write(fsStreamUncompressedData, prettier.format(`const data = Buffer.from('${Buffer.concat(memory).toString('base64')}', 'base64');\nexport default data;\n`, formatOptions));
+}
+writeCodepoints().catch((error) => console.error('error occurred generating saslprep codepoint data', { error }));
+//# sourceMappingURL=generate-code-points.js.map
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/generate-code-points.js.map b/backend/node_modules/@mongodb-js/saslprep/dist/generate-code-points.js.map
new file mode 100644
index 0000000..ba30023
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/generate-code-points.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"generate-code-points.js","sourceRoot":"","sources":["../src/generate-code-points.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;;;;;;;;;;;AAAA,+BAAgC;AAChC,sEAAuC;AACvC,8DAAgD;AAChD,2BAAuC;AACvC,mDAAqC;AAGrC,MAAM,sBAAsB,GAAG,IAAA,yBAAQ,GAAE,CAAC;AAC1C,MAAM,0BAA0B,GAAG,IAAA,yBAAQ,GAAE,CAAC;AAC9C,MAAM,0BAA0B,GAAG,IAAA,yBAAQ,GAAE,CAAC;AAC9C,MAAM,qBAAqB,GAAG,IAAA,yBAAQ,GAAE,CAAC;AACzC,MAAM,kBAAkB,GAAG,IAAA,yBAAQ,GAAE,CAAC;AACtC,MAAM,eAAe,GAAG,IAAA,yBAAQ,GAAE,CAAC;AAMnC,SAAS,QAAQ,CAAC,IAA+B,EAAE,GAAgB;IACjE,KAAK,MAAM,IAAI,IAAI,GAAG,CAAC,IAAI,EAAE,EAAE;QAC7B,IAAI,CAAC,GAAG,CAAC,IAAI,EAAE,IAAI,CAAC,CAAC;KACtB;IAED,MAAM,MAAM,GAAG,IAAI,CAAC,QAAQ,EAAE,CAAC;IAC/B,OAAO,MAAM,CAAC,MAAM,CAAC,CAAC,UAAU,CAAC,MAAM,CAAC,EAAE,MAAM,CAAC,CAAC,CAAC;AACrD,CAAC;AAED,SAAS,UAAU,CAAC,MAAc;IAChC,MAAM,GAAG,GAAG,MAAM,CAAC,KAAK,CAAC,CAAC,CAAC,CAAC;IAC5B,GAAG,CAAC,aAAa,CAAC,MAAM,CAAC,MAAM,CAAC,CAAC;IAEjC,OAAO,GAAG,CAAC;AACb,CAAC;AAED,MAAM,MAAM,GAAa,EAAE,CAAC;AAE5B,MAAM,CAAC,IAAI,CACT,QAAQ,CAAC,sBAAsB,EAAE,UAAU,CAAC,sBAAsB,CAAC,EACnE,QAAQ,CAAC,0BAA0B,EAAE,UAAU,CAAC,0BAA0B,CAAC,EAC3E,QAAQ,CAAC,0BAA0B,EAAE,UAAU,CAAC,0BAA0B,CAAC,EAC3E,QAAQ,CAAC,qBAAqB,EAAE,UAAU,CAAC,qBAAqB,CAAC,EACjE,QAAQ,CAAC,kBAAkB,EAAE,UAAU,CAAC,kBAAkB,CAAC,EAC3D,QAAQ,CAAC,eAAe,EAAE,UAAU,CAAC,eAAe,CAAC,CACtD,CAAC;AAEF,KAAK,UAAU,eAAe;IAC5B,MAAM,MAAM,GAAG,MAAM,QAAQ,CAAC,aAAa,CAAC,SAAS,CAAC,CAAC;IACvD,MAAM,aAAa,GAAG,EAAE,GAAG,MAAM,EAAE,MAAM,EAAE,YAAY,EAAE,CAAC;IAE1D,SAAS,KAAK,CAAC,MAAgB,EAAE,KAAa;QAC5C,OAAO,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,EAAE,CAAC,MAAM,CAAC,KAAK,CAAC,KAAK,EAAE,GAAG,EAAE,CAAC,OAAO,EAAE,CAAC,CAAC,CAAC;IACxE,CAAC;IACD,MAAM,KAAK,CACT,IAAA,sBAAiB,EAAC,OAAO,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC,EAClC,QAAQ,CAAC,MAAM,CACb;;;;SAIG,IAAA,eAAQ,EAAC,MAAM,CAAC,MAAM,CAAC,MAAM,CAAC,EAAE,EAAE,KAAK,EAAE,CAAC,EAAE,CAAC,CAAC,QAAQ,CAAC,QAAQ,CAAC;;;;GAItE,EACG,aAAa,CACd,CACF,CAAC;IAEF,MAAM,wBAAwB,GAAG,IAAA,sBAAiB,EAAC,OAAO,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC;IAEpE,MAAM,KAAK,CACT,wBAAwB,EACxB,QAAQ,CAAC,MAAM,CACb,6BAA6B,MAAM,CAAC,MAAM,CAAC,MAAM,CAAC,CAAC,QAAQ,CACzD,QAAQ,CACT,uCAAuC,EACxC,aAAa,CACd,CACF,CAAC;AACJ,CAAC;AAED,eAAe,EAAE,CAAC,KAAK,CAAC,CAAC,KAAK,EAAE,EAAE,CAEhC,OAAO,CAAC,KAAK,CAAC,mDAAmD,EAAE,EAAE,KAAK,EAAE,CAAC,CAC9E,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/index.d.ts b/backend/node_modules/@mongodb-js/saslprep/dist/index.d.ts
new file mode 100644
index 0000000..24d575c
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/index.d.ts
@@ -0,0 +1,11 @@
+import type { createMemoryCodePoints } from './memory-code-points';
+declare function saslprep({ unassigned_code_points, commonly_mapped_to_nothing, non_ASCII_space_characters, prohibited_characters, bidirectional_r_al, bidirectional_l, }: ReturnType<typeof createMemoryCodePoints>, input: string, opts?: {
+    allowUnassigned?: boolean;
+}): string;
+declare namespace saslprep {
+    export var saslprep: typeof import(".");
+    var _a: typeof import(".");
+    export { _a as default };
+}
+export = saslprep;
+//# sourceMappingURL=index.d.ts.map
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/index.d.ts.map b/backend/node_modules/@mongodb-js/saslprep/dist/index.d.ts.map
new file mode 100644
index 0000000..e53e394
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/index.d.ts.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":"AAAA,OAAO,KAAK,EAAE,sBAAsB,EAAE,MAAM,sBAAsB,CAAC;AAsCnE,iBAAS,QAAQ,CACf,EACE,sBAAsB,EACtB,0BAA0B,EAC1B,0BAA0B,EAC1B,qBAAqB,EACrB,kBAAkB,EAClB,eAAe,GAChB,EAAE,UAAU,CAAC,OAAO,sBAAsB,CAAC,EAC5C,KAAK,EAAE,MAAM,EACb,IAAI,GAAE;IAAE,eAAe,CAAC,EAAE,OAAO,CAAA;CAAO,GACvC,MAAM,CAqGR;kBAhHQ,QAAQ;;;;;AAoHjB,SAAS,QAAQ,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/index.js b/backend/node_modules/@mongodb-js/saslprep/dist/index.js
new file mode 100644
index 0000000..07d87bc
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/index.js
@@ -0,0 +1,65 @@
+"use strict";
+const getCodePoint = (character) => character.codePointAt(0);
+const first = (x) => x[0];
+const last = (x) => x[x.length - 1];
+function toCodePoints(input) {
+    const codepoints = [];
+    const size = input.length;
+    for (let i = 0; i < size; i += 1) {
+        const before = input.charCodeAt(i);
+        if (before >= 0xd800 && before <= 0xdbff && size > i + 1) {
+            const next = input.charCodeAt(i + 1);
+            if (next >= 0xdc00 && next <= 0xdfff) {
+                codepoints.push((before - 0xd800) * 0x400 + next - 0xdc00 + 0x10000);
+                i += 1;
+                continue;
+            }
+        }
+        codepoints.push(before);
+    }
+    return codepoints;
+}
+function saslprep({ unassigned_code_points, commonly_mapped_to_nothing, non_ASCII_space_characters, prohibited_characters, bidirectional_r_al, bidirectional_l, }, input, opts = {}) {
+    const mapping2space = non_ASCII_space_characters;
+    const mapping2nothing = commonly_mapped_to_nothing;
+    if (typeof input !== 'string') {
+        throw new TypeError('Expected string.');
+    }
+    if (input.length === 0) {
+        return '';
+    }
+    const mapped_input = toCodePoints(input)
+        .map((character) => (mapping2space.get(character) ? 0x20 : character))
+        .filter((character) => !mapping2nothing.get(character));
+    const normalized_input = String.fromCodePoint
+        .apply(null, mapped_input)
+        .normalize('NFKC');
+    const normalized_map = toCodePoints(normalized_input);
+    const hasProhibited = normalized_map.some((character) => prohibited_characters.get(character));
+    if (hasProhibited) {
+        throw new Error('Prohibited character, see https://tools.ietf.org/html/rfc4013#section-2.3');
+    }
+    if (opts.allowUnassigned !== true) {
+        const hasUnassigned = normalized_map.some((character) => unassigned_code_points.get(character));
+        if (hasUnassigned) {
+            throw new Error('Unassigned code point, see https://tools.ietf.org/html/rfc4013#section-2.5');
+        }
+    }
+    const hasBidiRAL = normalized_map.some((character) => bidirectional_r_al.get(character));
+    const hasBidiL = normalized_map.some((character) => bidirectional_l.get(character));
+    if (hasBidiRAL && hasBidiL) {
+        throw new Error('String must not contain RandALCat and LCat at the same time,' +
+            ' see https://tools.ietf.org/html/rfc3454#section-6');
+    }
+    const isFirstBidiRAL = bidirectional_r_al.get(getCodePoint(first(normalized_input)));
+    const isLastBidiRAL = bidirectional_r_al.get(getCodePoint(last(normalized_input)));
+    if (hasBidiRAL && !(isFirstBidiRAL && isLastBidiRAL)) {
+        throw new Error('Bidirectional RandALCat character must be the first and the last' +
+            ' character of the string, see https://tools.ietf.org/html/rfc3454#section-6');
+    }
+    return normalized_input;
+}
+saslprep.saslprep = saslprep;
+saslprep.default = saslprep;
+module.exports = saslprep;
+//# sourceMappingURL=index.js.map
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/index.js.map b/backend/node_modules/@mongodb-js/saslprep/dist/index.js.map
new file mode 100644
index 0000000..5b2b276
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/index.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":";AAGA,MAAM,YAAY,GAAG,CAAC,SAAiB,EAAE,EAAE,CAAC,SAAS,CAAC,WAAW,CAAC,CAAC,CAAC,CAAC;AACrE,MAAM,KAAK,GAAG,CAA2B,CAAI,EAAa,EAAE,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;AAClE,MAAM,IAAI,GAAG,CAA2B,CAAI,EAAa,EAAE,CAAC,CAAC,CAAC,CAAC,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC;AAO5E,SAAS,YAAY,CAAC,KAAa;IACjC,MAAM,UAAU,GAAG,EAAE,CAAC;IACtB,MAAM,IAAI,GAAG,KAAK,CAAC,MAAM,CAAC;IAE1B,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,IAAI,EAAE,CAAC,IAAI,CAAC,EAAE;QAChC,MAAM,MAAM,GAAG,KAAK,CAAC,UAAU,CAAC,CAAC,CAAC,CAAC;QAEnC,IAAI,MAAM,IAAI,MAAM,IAAI,MAAM,IAAI,MAAM,IAAI,IAAI,GAAG,CAAC,GAAG,CAAC,EAAE;YACxD,MAAM,IAAI,GAAG,KAAK,CAAC,UAAU,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC;YAErC,IAAI,IAAI,IAAI,MAAM,IAAI,IAAI,IAAI,MAAM,EAAE;gBACpC,UAAU,CAAC,IAAI,CAAC,CAAC,MAAM,GAAG,MAAM,CAAC,GAAG,KAAK,GAAG,IAAI,GAAG,MAAM,GAAG,OAAO,CAAC,CAAC;gBACrE,CAAC,IAAI,CAAC,CAAC;gBACP,SAAS;aACV;SACF;QAED,UAAU,CAAC,IAAI,CAAC,MAAM,CAAC,CAAC;KACzB;IAED,OAAO,UAAU,CAAC;AACpB,CAAC;AAKD,SAAS,QAAQ,CACf,EACE,sBAAsB,EACtB,0BAA0B,EAC1B,0BAA0B,EAC1B,qBAAqB,EACrB,kBAAkB,EAClB,eAAe,GAC2B,EAC5C,KAAa,EACb,OAAsC,EAAE;IAQxC,MAAM,aAAa,GAAG,0BAA0B,CAAC;IAMjD,MAAM,eAAe,GAAG,0BAA0B,CAAC;IAEnD,IAAI,OAAO,KAAK,KAAK,QAAQ,EAAE;QAC7B,MAAM,IAAI,SAAS,CAAC,kBAAkB,CAAC,CAAC;KACzC;IAED,IAAI,KAAK,CAAC,MAAM,KAAK,CAAC,EAAE;QACtB,OAAO,EAAE,CAAC;KACX;IAGD,MAAM,YAAY,GAAG,YAAY,CAAC,KAAK,CAAC;SAErC,GAAG,CAAC,CAAC,SAAS,EAAE,EAAE,CAAC,CAAC,aAAa,CAAC,GAAG,CAAC,SAAS,CAAC,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,SAAS,CAAC,CAAC;SAErE,MAAM,CAAC,CAAC,SAAS,EAAE,EAAE,CAAC,CAAC,eAAe,CAAC,GAAG,CAAC,SAAS,CAAC,CAAC,CAAC;IAG1D,MAAM,gBAAgB,GAAG,MAAM,CAAC,aAAa;SAC1C,KAAK,CAAC,IAAI,EAAE,YAAY,CAAC;SACzB,SAAS,CAAC,MAAM,CAAC,CAAC;IAErB,MAAM,cAAc,GAAG,YAAY,CAAC,gBAAgB,CAAC,CAAC;IAGtD,MAAM,aAAa,GAAG,cAAc,CAAC,IAAI,CAAC,CAAC,SAAS,EAAE,EAAE,CACtD,qBAAqB,CAAC,GAAG,CAAC,SAAS,CAAC,CACrC,CAAC;IAEF,IAAI,aAAa,EAAE;QACjB,MAAM,IAAI,KAAK,CACb,2EAA2E,CAC5E,CAAC;KACH;IAGD,IAAI,IAAI,CAAC,eAAe,KAAK,IAAI,EAAE;QACjC,MAAM,aAAa,GAAG,cAAc,CAAC,IAAI,CAAC,CAAC,SAAS,EAAE,EAAE,CACtD,sBAAsB,CAAC,GAAG,CAAC,SAAS,CAAC,CACtC,CAAC;QAEF,IAAI,aAAa,EAAE;YACjB,MAAM,IAAI,KAAK,CACb,4EAA4E,CAC7E,CAAC;SACH;KACF;IAID,MAAM,UAAU,GAAG,cAAc,CAAC,IAAI,CAAC,CAAC,SAAS,EAAE,EAAE,CACnD,kBAAkB,CAAC,GAAG,CAAC,SAAS,CAAC,CAClC,CAAC;IAEF,MAAM,QAAQ,GAAG,cAAc,CAAC,IAAI,CAAC,CAAC,SAAS,EAAE,EAAE,CACjD,eAAe,CAAC,GAAG,CAAC,SAAS,CAAC,CAC/B,CAAC;IAIF,IAAI,UAAU,IAAI,QAAQ,EAAE;QAC1B,MAAM,IAAI,KAAK,CACb,8DAA8D;YAC5D,oDAAoD,CACvD,CAAC;KACH;IAQD,MAAM,cAAc,GAAG,kBAAkB,CAAC,GAAG,CAC3C,YAAY,CAAC,KAAK,CAAC,gBAAgB,CAAC,CAAE,CACvC,CAAC;IACF,MAAM,aAAa,GAAG,kBAAkB,CAAC,GAAG,CAC1C,YAAY,CAAC,IAAI,CAAC,gBAAgB,CAAC,CAAE,CACtC,CAAC;IAEF,IAAI,UAAU,IAAI,CAAC,CAAC,cAAc,IAAI,aAAa,CAAC,EAAE;QACpD,MAAM,IAAI,KAAK,CACb,kEAAkE;YAChE,6EAA6E,CAChF,CAAC;KACH;IAED,OAAO,gBAAgB,CAAC;AAC1B,CAAC;AAED,QAAQ,CAAC,QAAQ,GAAG,QAAQ,CAAC;AAC7B,QAAQ,CAAC,OAAO,GAAG,QAAQ,CAAC;AAC5B,iBAAS,QAAQ,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/memory-code-points.d.ts b/backend/node_modules/@mongodb-js/saslprep/dist/memory-code-points.d.ts
new file mode 100644
index 0000000..8c675a0
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/memory-code-points.d.ts
@@ -0,0 +1,11 @@
+/// <reference types="node" />
+import bitfield from 'sparse-bitfield';
+export declare function createMemoryCodePoints(data: Buffer): {
+    unassigned_code_points: bitfield.BitFieldInstance;
+    commonly_mapped_to_nothing: bitfield.BitFieldInstance;
+    non_ASCII_space_characters: bitfield.BitFieldInstance;
+    prohibited_characters: bitfield.BitFieldInstance;
+    bidirectional_r_al: bitfield.BitFieldInstance;
+    bidirectional_l: bitfield.BitFieldInstance;
+};
+//# sourceMappingURL=memory-code-points.d.ts.map
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/memory-code-points.d.ts.map b/backend/node_modules/@mongodb-js/saslprep/dist/memory-code-points.d.ts.map
new file mode 100644
index 0000000..83b7b57
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/memory-code-points.d.ts.map
@@ -0,0 +1 @@
+{"version":3,"file":"memory-code-points.d.ts","sourceRoot":"","sources":["../src/memory-code-points.ts"],"names":[],"mappings":";AAAA,OAAO,QAAQ,MAAM,iBAAiB,CAAC;AAEvC,wBAAgB,sBAAsB,CAAC,IAAI,EAAE,MAAM;;;;;;;EA+BlD"}
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/memory-code-points.js b/backend/node_modules/@mongodb-js/saslprep/dist/memory-code-points.js
new file mode 100644
index 0000000..05133de
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/memory-code-points.js
@@ -0,0 +1,33 @@
+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.createMemoryCodePoints = void 0;
+const sparse_bitfield_1 = __importDefault(require("sparse-bitfield"));
+function createMemoryCodePoints(data) {
+    let offset = 0;
+    function read() {
+        const size = data.readUInt32BE(offset);
+        offset += 4;
+        const codepoints = data.slice(offset, offset + size);
+        offset += size;
+        return (0, sparse_bitfield_1.default)({ buffer: codepoints });
+    }
+    const unassigned_code_points = read();
+    const commonly_mapped_to_nothing = read();
+    const non_ASCII_space_characters = read();
+    const prohibited_characters = read();
+    const bidirectional_r_al = read();
+    const bidirectional_l = read();
+    return {
+        unassigned_code_points,
+        commonly_mapped_to_nothing,
+        non_ASCII_space_characters,
+        prohibited_characters,
+        bidirectional_r_al,
+        bidirectional_l,
+    };
+}
+exports.createMemoryCodePoints = createMemoryCodePoints;
+//# sourceMappingURL=memory-code-points.js.map
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/memory-code-points.js.map b/backend/node_modules/@mongodb-js/saslprep/dist/memory-code-points.js.map
new file mode 100644
index 0000000..0bb5a14
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/memory-code-points.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"memory-code-points.js","sourceRoot":"","sources":["../src/memory-code-points.ts"],"names":[],"mappings":";;;;;;AAAA,sEAAuC;AAEvC,SAAgB,sBAAsB,CAAC,IAAY;IACjD,IAAI,MAAM,GAAG,CAAC,CAAC;IAKf,SAAS,IAAI;QACX,MAAM,IAAI,GAAG,IAAI,CAAC,YAAY,CAAC,MAAM,CAAC,CAAC;QACvC,MAAM,IAAI,CAAC,CAAC;QAEZ,MAAM,UAAU,GAAG,IAAI,CAAC,KAAK,CAAC,MAAM,EAAE,MAAM,GAAG,IAAI,CAAC,CAAC;QACrD,MAAM,IAAI,IAAI,CAAC;QAEf,OAAO,IAAA,yBAAQ,EAAC,EAAE,MAAM,EAAE,UAAU,EAAE,CAAC,CAAC;IAC1C,CAAC;IAED,MAAM,sBAAsB,GAAG,IAAI,EAAE,CAAC;IACtC,MAAM,0BAA0B,GAAG,IAAI,EAAE,CAAC;IAC1C,MAAM,0BAA0B,GAAG,IAAI,EAAE,CAAC;IAC1C,MAAM,qBAAqB,GAAG,IAAI,EAAE,CAAC;IACrC,MAAM,kBAAkB,GAAG,IAAI,EAAE,CAAC;IAClC,MAAM,eAAe,GAAG,IAAI,EAAE,CAAC;IAE/B,OAAO;QACL,sBAAsB;QACtB,0BAA0B;QAC1B,0BAA0B;QAC1B,qBAAqB;QACrB,kBAAkB;QAClB,eAAe;KAChB,CAAC;AACJ,CAAC;AA/BD,wDA+BC"}
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/node.d.ts b/backend/node_modules/@mongodb-js/saslprep/dist/node.d.ts
new file mode 100644
index 0000000..0208c8e
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/node.d.ts
@@ -0,0 +1,10 @@
+declare function saslprep(input: string, opts?: {
+    allowUnassigned?: boolean;
+}): string;
+declare namespace saslprep {
+    export var saslprep: typeof import("./node");
+    var _a: typeof import("./node");
+    export { _a as default };
+}
+export = saslprep;
+//# sourceMappingURL=node.d.ts.map
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/node.d.ts.map b/backend/node_modules/@mongodb-js/saslprep/dist/node.d.ts.map
new file mode 100644
index 0000000..3032ff9
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/node.d.ts.map
@@ -0,0 +1 @@
+{"version":3,"file":"node.d.ts","sourceRoot":"","sources":["../src/node.ts"],"names":[],"mappings":"AAMA,iBAAS,QAAQ,CAAC,KAAK,EAAE,MAAM,EAAE,IAAI,CAAC,EAAE;IAAE,eAAe,CAAC,EAAE,OAAO,CAAA;CAAE,GAAG,MAAM,CAE7E;kBAFQ,QAAQ;;;;;AAOjB,SAAS,QAAQ,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/node.js b/backend/node_modules/@mongodb-js/saslprep/dist/node.js
new file mode 100644
index 0000000..1007f86
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/node.js
@@ -0,0 +1,15 @@
+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+const index_1 = __importDefault(require("./index"));
+const memory_code_points_1 = require("./memory-code-points");
+const code_points_data_1 = __importDefault(require("./code-points-data"));
+const codePoints = (0, memory_code_points_1.createMemoryCodePoints)(code_points_data_1.default);
+function saslprep(input, opts) {
+    return (0, index_1.default)(codePoints, input, opts);
+}
+saslprep.saslprep = saslprep;
+saslprep.default = saslprep;
+module.exports = saslprep;
+//# sourceMappingURL=node.js.map
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/node.js.map b/backend/node_modules/@mongodb-js/saslprep/dist/node.js.map
new file mode 100644
index 0000000..107ee64
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/node.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"node.js","sourceRoot":"","sources":["../src/node.ts"],"names":[],"mappings":";;;;AAAA,oDAAgC;AAChC,6DAA8D;AAC9D,0EAAsC;AAEtC,MAAM,UAAU,GAAG,IAAA,2CAAsB,EAAC,0BAAI,CAAC,CAAC;AAEhD,SAAS,QAAQ,CAAC,KAAa,EAAE,IAAoC;IACnE,OAAO,IAAA,eAAS,EAAC,UAAU,EAAE,KAAK,EAAE,IAAI,CAAC,CAAC;AAC5C,CAAC;AAED,QAAQ,CAAC,QAAQ,GAAG,QAAQ,CAAC;AAC7B,QAAQ,CAAC,OAAO,GAAG,QAAQ,CAAC;AAE5B,iBAAS,QAAQ,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/util.d.ts b/backend/node_modules/@mongodb-js/saslprep/dist/util.d.ts
new file mode 100644
index 0000000..3a0466e
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/util.d.ts
@@ -0,0 +1,2 @@
+export declare function range(from: number, to: number): number[];
+//# sourceMappingURL=util.d.ts.map
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/util.d.ts.map b/backend/node_modules/@mongodb-js/saslprep/dist/util.d.ts.map
new file mode 100644
index 0000000..50c7167
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/util.d.ts.map
@@ -0,0 +1 @@
+{"version":3,"file":"util.d.ts","sourceRoot":"","sources":["../src/util.ts"],"names":[],"mappings":"AAGA,wBAAgB,KAAK,CAAC,IAAI,EAAE,MAAM,EAAE,EAAE,EAAE,MAAM,GAAG,MAAM,EAAE,CAQxD"}
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/util.js b/backend/node_modules/@mongodb-js/saslprep/dist/util.js
new file mode 100644
index 0000000..f679cab
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/util.js
@@ -0,0 +1,12 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.range = void 0;
+function range(from, to) {
+    const list = new Array(to - from + 1);
+    for (let i = 0; i < list.length; i += 1) {
+        list[i] = from + i;
+    }
+    return list;
+}
+exports.range = range;
+//# sourceMappingURL=util.js.map
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/dist/util.js.map b/backend/node_modules/@mongodb-js/saslprep/dist/util.js.map
new file mode 100644
index 0000000..1bab681
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/dist/util.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"util.js","sourceRoot":"","sources":["../src/util.ts"],"names":[],"mappings":";;;AAGA,SAAgB,KAAK,CAAC,IAAY,EAAE,EAAU;IAE5C,MAAM,IAAI,GAAG,IAAI,KAAK,CAAC,EAAE,GAAG,IAAI,GAAG,CAAC,CAAC,CAAC;IAEtC,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,IAAI,CAAC,MAAM,EAAE,CAAC,IAAI,CAAC,EAAE;QACvC,IAAI,CAAC,CAAC,CAAC,GAAG,IAAI,GAAG,CAAC,CAAC;KACpB;IACD,OAAO,IAAI,CAAC;AACd,CAAC;AARD,sBAQC"}
\ No newline at end of file
diff --git a/backend/node_modules/@mongodb-js/saslprep/package.json b/backend/node_modules/@mongodb-js/saslprep/package.json
new file mode 100644
index 0000000..cef1dcc
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/package.json
@@ -0,0 +1,87 @@
+{
+  "name": "@mongodb-js/saslprep",
+  "description": "SASLprep: Stringprep Profile for User Names and Passwords, rfc4013",
+  "keywords": [
+    "sasl",
+    "saslprep",
+    "stringprep",
+    "rfc4013",
+    "4013"
+  ],
+  "author": "Dmitry Tsvettsikh <me@reklatsmasters.com>",
+  "publishConfig": {
+    "access": "public"
+  },
+  "main": "dist/node.js",
+  "bugs": {
+    "url": "https://jira.mongodb.org/projects/COMPASS/issues",
+    "email": "compass@mongodb.com"
+  },
+  "homepage": "https://github.com/mongodb-js/devtools-shared/tree/main/packages/saslprep",
+  "version": "1.1.9",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/mongodb-js/devtools-shared.git"
+  },
+  "files": [
+    "dist"
+  ],
+  "license": "MIT",
+  "exports": {
+    "browser": {
+      "types": "./dist/browser.d.ts",
+      "default": "./dist/browser.js"
+    },
+    "import": {
+      "types": "./dist/node.d.ts",
+      "default": "./dist/.esm-wrapper.mjs"
+    },
+    "require": {
+      "types": "./dist/node.d.ts",
+      "default": "./dist/node.js"
+    }
+  },
+  "types": "./dist/node.d.ts",
+  "scripts": {
+    "gen-code-points": "ts-node src/generate-code-points.ts src/code-points-data.ts src/code-points-data-browser.ts",
+    "bootstrap": "npm run compile",
+    "prepublishOnly": "npm run compile",
+    "compile": "npm run gen-code-points && tsc -p tsconfig.json && gen-esm-wrapper . ./dist/.esm-wrapper.mjs",
+    "typecheck": "tsc --noEmit",
+    "eslint": "eslint",
+    "prettier": "prettier",
+    "lint": "npm run eslint . && npm run prettier -- --check .",
+    "depcheck": "depcheck",
+    "check": "npm run typecheck && npm run lint && npm run depcheck",
+    "check-ci": "npm run check",
+    "test": "mocha",
+    "test-cov": "nyc -x \"**/*.spec.*\" --reporter=lcov --reporter=text --reporter=html npm run test",
+    "test-watch": "npm run test -- --watch",
+    "test-ci": "npm run test-cov",
+    "reformat": "npm run prettier -- --write ."
+  },
+  "dependencies": {
+    "sparse-bitfield": "^3.0.3"
+  },
+  "devDependencies": {
+    "@mongodb-js/eslint-config-devtools": "0.9.10",
+    "@mongodb-js/mocha-config-devtools": "^1.0.4",
+    "@mongodb-js/prettier-config-devtools": "^1.0.1",
+    "@mongodb-js/tsconfig-devtools": "^1.0.2",
+    "@types/chai": "^4.2.21",
+    "@types/mocha": "^9.0.0",
+    "@types/node": "^17.0.35",
+    "@types/sinon-chai": "^3.2.5",
+    "@types/sparse-bitfield": "^3.0.1",
+    "chai": "^4.3.6",
+    "depcheck": "^1.4.1",
+    "eslint": "^7.25.0",
+    "gen-esm-wrapper": "^1.1.0",
+    "mocha": "^8.4.0",
+    "nyc": "^15.1.0",
+    "prettier": "^2.3.2",
+    "sinon": "^9.2.3",
+    "typescript": "^5.0.4"
+  },
+  "gitHead": "ff75d1b32c794ae9f3e48a7b4eb741df7df23e24"
+}
diff --git a/backend/node_modules/@mongodb-js/saslprep/readme.md b/backend/node_modules/@mongodb-js/saslprep/readme.md
new file mode 100644
index 0000000..28539ed
--- /dev/null
+++ b/backend/node_modules/@mongodb-js/saslprep/readme.md
@@ -0,0 +1,29 @@
+# saslprep
+
+_Note: This is a fork of the original [`saslprep`](https://www.npmjs.com/package/saslprep) npm package
+and provides equivalent functionality._
+
+Stringprep Profile for User Names and Passwords, [rfc4013](https://tools.ietf.org/html/rfc4013)
+
+### Usage
+
+```js
+const saslprep = require('@mongodb-js/saslprep');
+
+saslprep('password\u00AD'); // password
+saslprep('password\u0007'); // Error: prohibited character
+```
+
+### API
+
+##### `saslprep(input: String, opts: Options): String`
+
+Normalize user name or password.
+
+##### `Options.allowUnassigned: bool`
+
+A special behavior for unassigned code points, see https://tools.ietf.org/html/rfc4013#section-2.5. Disabled by default.
+
+## License
+
+MIT, 2017-2019 (c) Dmitriy Tsvettsikh
diff --git a/backend/node_modules/@types/webidl-conversions/LICENSE b/backend/node_modules/@types/webidl-conversions/LICENSE
new file mode 100644
index 0000000..9e841e7
--- /dev/null
+++ b/backend/node_modules/@types/webidl-conversions/LICENSE
@@ -0,0 +1,21 @@
+    MIT License
+
+    Copyright (c) Microsoft Corporation.
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in all
+    copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+    SOFTWARE
diff --git a/backend/node_modules/@types/webidl-conversions/README.md b/backend/node_modules/@types/webidl-conversions/README.md
new file mode 100644
index 0000000..a0f3f9d
--- /dev/null
+++ b/backend/node_modules/@types/webidl-conversions/README.md
@@ -0,0 +1,15 @@
+# Installation
+> `npm install --save @types/webidl-conversions`
+
+# Summary
+This package contains type definitions for webidl-conversions (https://github.com/jsdom/webidl-conversions#readme).
+
+# Details
+Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/webidl-conversions.
+
+### Additional Details
+ * Last updated: Tue, 07 Nov 2023 15:11:36 GMT
+ * Dependencies: none
+
+# Credits
+These definitions were written by [ExE Boss](https://github.com/ExE-Boss), and [BendingBender](https://github.com/BendingBender).
diff --git a/backend/node_modules/@types/webidl-conversions/index.d.ts b/backend/node_modules/@types/webidl-conversions/index.d.ts
new file mode 100644
index 0000000..bcf395a
--- /dev/null
+++ b/backend/node_modules/@types/webidl-conversions/index.d.ts
@@ -0,0 +1,91 @@
+declare namespace WebIDLConversions {
+    interface Globals {
+        [key: string]: unknown;
+
+        Number: (value?: unknown) => number;
+        String: (value?: unknown) => string;
+        TypeError: new(message?: string) => TypeError;
+    }
+
+    interface Options {
+        context?: string | undefined;
+        globals?: Globals | undefined;
+    }
+
+    interface IntegerOptions extends Options {
+        enforceRange?: boolean | undefined;
+        clamp?: boolean | undefined;
+    }
+
+    interface StringOptions extends Options {
+        treatNullAsEmptyString?: boolean | undefined;
+    }
+
+    interface BufferSourceOptions extends Options {
+        allowShared?: boolean | undefined;
+    }
+
+    type IntegerConversion = (V: unknown, opts?: IntegerOptions) => number;
+    type StringConversion = (V: unknown, opts?: StringOptions) => string;
+    type NumberConversion = (V: unknown, opts?: Options) => number;
+}
+
+declare const WebIDLConversions: {
+    any<V>(V: V, opts?: WebIDLConversions.Options): V;
+    undefined(V?: unknown, opts?: WebIDLConversions.Options): void;
+    boolean(V: unknown, opts?: WebIDLConversions.Options): boolean;
+
+    byte(V: unknown, opts?: WebIDLConversions.IntegerOptions): number;
+    octet(V: unknown, opts?: WebIDLConversions.IntegerOptions): number;
+
+    short(V: unknown, opts?: WebIDLConversions.IntegerOptions): number;
+    ["unsigned short"](V: unknown, opts?: WebIDLConversions.IntegerOptions): number;
+
+    long(V: unknown, opts?: WebIDLConversions.IntegerOptions): number;
+    ["unsigned long"](V: unknown, opts?: WebIDLConversions.IntegerOptions): number;
+
+    ["long long"](V: unknown, opts?: WebIDLConversions.IntegerOptions): number;
+    ["unsigned long long"](V: unknown, opts?: WebIDLConversions.IntegerOptions): number;
+
+    double(V: unknown, opts?: WebIDLConversions.Options): number;
+    ["unrestricted double"](V: unknown, opts?: WebIDLConversions.Options): number;
+
+    float(V: unknown, opts?: WebIDLConversions.Options): number;
+    ["unrestricted float"](V: unknown, opts?: WebIDLConversions.Options): number;
+
+    DOMString(V: unknown, opts?: WebIDLConversions.StringOptions): string;
+    ByteString(V: unknown, opts?: WebIDLConversions.StringOptions): string;
+    USVString(V: unknown, opts?: WebIDLConversions.StringOptions): string;
+
+    object<V>(V: V, opts?: WebIDLConversions.Options): V extends object ? V : V & object;
+    ArrayBuffer(
+        V: unknown,
+        opts?: WebIDLConversions.BufferSourceOptions & { allowShared?: false | undefined },
+    ): ArrayBuffer;
+    ArrayBuffer(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): ArrayBufferLike;
+    DataView(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): DataView;
+
+    Int8Array(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): Int8Array;
+    Int16Array(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): Int16Array;
+    Int32Array(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): Int32Array;
+
+    Uint8Array(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): Uint8Array;
+    Uint16Array(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): Uint16Array;
+    Uint32Array(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): Uint32Array;
+    Uint8ClampedArray(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): Uint8ClampedArray;
+
+    Float32Array(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): Float32Array;
+    Float64Array(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): Float64Array;
+
+    ArrayBufferView(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): ArrayBufferView;
+    BufferSource(
+        V: unknown,
+        opts?: WebIDLConversions.BufferSourceOptions & { allowShared?: false | undefined },
+    ): ArrayBuffer | ArrayBufferView;
+    BufferSource(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): ArrayBufferLike | ArrayBufferView;
+
+    DOMTimeStamp(V: unknown, opts?: WebIDLConversions.Options): number;
+};
+
+// This can't use ES6 style exports, as those can't have spaces in export names.
+export = WebIDLConversions;
diff --git a/backend/node_modules/@types/webidl-conversions/package.json b/backend/node_modules/@types/webidl-conversions/package.json
new file mode 100644
index 0000000..21fdb95
--- /dev/null
+++ b/backend/node_modules/@types/webidl-conversions/package.json
@@ -0,0 +1,30 @@
+{
+    "name": "@types/webidl-conversions",
+    "version": "7.0.3",
+    "description": "TypeScript definitions for webidl-conversions",
+    "homepage": "https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/webidl-conversions",
+    "license": "MIT",
+    "contributors": [
+        {
+            "name": "ExE Boss",
+            "githubUsername": "ExE-Boss",
+            "url": "https://github.com/ExE-Boss"
+        },
+        {
+            "name": "BendingBender",
+            "githubUsername": "BendingBender",
+            "url": "https://github.com/BendingBender"
+        }
+    ],
+    "main": "",
+    "types": "index.d.ts",
+    "repository": {
+        "type": "git",
+        "url": "https://github.com/DefinitelyTyped/DefinitelyTyped.git",
+        "directory": "types/webidl-conversions"
+    },
+    "scripts": {},
+    "dependencies": {},
+    "typesPublisherContentHash": "ff1514e10869784e8b7cca9c4099a4213d3f14b48c198b1bf116300df94bf608",
+    "typeScriptVersion": "4.5"
+}
\ No newline at end of file
diff --git a/backend/node_modules/@types/whatwg-url/LICENSE b/backend/node_modules/@types/whatwg-url/LICENSE
new file mode 100644
index 0000000..9e841e7
--- /dev/null
+++ b/backend/node_modules/@types/whatwg-url/LICENSE
@@ -0,0 +1,21 @@
+    MIT License
+
+    Copyright (c) Microsoft Corporation.
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in all
+    copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+    SOFTWARE
diff --git a/backend/node_modules/@types/whatwg-url/README.md b/backend/node_modules/@types/whatwg-url/README.md
new file mode 100644
index 0000000..75b056c
--- /dev/null
+++ b/backend/node_modules/@types/whatwg-url/README.md
@@ -0,0 +1,15 @@
+# Installation
+> `npm install --save @types/whatwg-url`
+
+# Summary
+This package contains type definitions for whatwg-url (https://github.com/jsdom/whatwg-url#readme).
+
+# Details
+Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/whatwg-url.
+
+### Additional Details
+ * Last updated: Sat, 18 May 2024 21:06:54 GMT
+ * Dependencies: [@types/webidl-conversions](https://npmjs.com/package/@types/webidl-conversions)
+
+# Credits
+These definitions were written by [Alexander Marks](https://github.com/aomarks), [ExE Boss](https://github.com/ExE-Boss), and [BendingBender](https://github.com/BendingBender).
diff --git a/backend/node_modules/@types/whatwg-url/index.d.ts b/backend/node_modules/@types/whatwg-url/index.d.ts
new file mode 100644
index 0000000..7c554cc
--- /dev/null
+++ b/backend/node_modules/@types/whatwg-url/index.d.ts
@@ -0,0 +1,169 @@
+/// <reference lib="es2020"/>
+/** https://url.spec.whatwg.org/#url-representation */
+export interface URLRecord {
+    scheme: string;
+    username: string;
+    password: string;
+    host: string | number | IPv6Address | null;
+    port: number | null;
+    path: string | string[];
+    query: string | null;
+    fragment: string | null;
+}
+
+/** https://url.spec.whatwg.org/#concept-ipv6 */
+export type IPv6Address = [number, number, number, number, number, number, number, number];
+
+/** https://url.spec.whatwg.org/#url-class */
+export class URL {
+    constructor(url: string, base?: string | URL);
+
+    get href(): string;
+    set href(V: string);
+
+    get origin(): string;
+
+    get protocol(): string;
+    set protocol(V: string);
+
+    get username(): string;
+    set username(V: string);
+
+    get password(): string;
+    set password(V: string);
+
+    get host(): string;
+    set host(V: string);
+
+    get hostname(): string;
+    set hostname(V: string);
+
+    get port(): string;
+    set port(V: string);
+
+    get pathname(): string;
+    set pathname(V: string);
+
+    get search(): string;
+    set search(V: string);
+
+    get searchParams(): URLSearchParams;
+
+    get hash(): string;
+    set hash(V: string);
+
+    toJSON(): string;
+
+    readonly [Symbol.toStringTag]: "URL";
+}
+
+/** https://url.spec.whatwg.org/#interface-urlsearchparams */
+export class URLSearchParams {
+    constructor(
+        init?:
+            | ReadonlyArray<readonly [name: string, value: string]>
+            | Iterable<readonly [name: string, value: string]>
+            | { readonly [name: string]: string }
+            | string,
+    );
+
+    append(name: string, value: string): void;
+    delete(name: string): void;
+    get(name: string): string | null;
+    getAll(name: string): string[];
+    has(name: string): boolean;
+    set(name: string, value: string): void;
+    sort(): void;
+
+    keys(): IterableIterator<string>;
+    values(): IterableIterator<string>;
+    entries(): IterableIterator<[name: string, value: string]>;
+    forEach<THIS_ARG = void>(
+        callback: (this: THIS_ARG, value: string, name: string, searchParams: this) => void,
+        thisArg?: THIS_ARG,
+    ): void;
+
+    readonly [Symbol.toStringTag]: "URLSearchParams";
+    [Symbol.iterator](): IterableIterator<[name: string, value: string]>;
+}
+
+/** https://url.spec.whatwg.org/#concept-url-parser */
+export function parseURL(input: string, options?: { readonly baseURL?: URLRecord | undefined }): URLRecord | null;
+
+/** https://url.spec.whatwg.org/#concept-basic-url-parser */
+export function basicURLParse(
+    input: string,
+    options?: {
+        baseURL?: URLRecord | undefined;
+        url?: URLRecord | undefined;
+        stateOverride?: StateOverride | undefined;
+    },
+): URLRecord | null;
+
+/** https://url.spec.whatwg.org/#scheme-start-state */
+export type StateOverride =
+    | "scheme start"
+    | "scheme"
+    | "no scheme"
+    | "special relative or authority"
+    | "path or authority"
+    | "relative"
+    | "relative slash"
+    | "special authority slashes"
+    | "special authority ignore slashes"
+    | "authority"
+    | "host"
+    | "hostname"
+    | "port"
+    | "file"
+    | "file slash"
+    | "file host"
+    | "path start"
+    | "path"
+    | "opaque path"
+    | "query"
+    | "fragment";
+
+/** https://url.spec.whatwg.org/#concept-url-serializer */
+export function serializeURL(urlRecord: URLRecord, excludeFragment?: boolean): string;
+
+/** https://url.spec.whatwg.org/#concept-host-serializer */
+export function serializeHost(host: string | number | IPv6Address): string;
+
+/** https://url.spec.whatwg.org/#url-path-serializer */
+export function serializePath(urlRecord: URLRecord): string;
+
+/** https://url.spec.whatwg.org/#serialize-an-integer */
+export function serializeInteger(number: number): string;
+
+/** https://html.spec.whatwg.org#ascii-serialisation-of-an-origin */
+export function serializeURLOrigin(urlRecord: URLRecord): string;
+
+/** https://url.spec.whatwg.org/#set-the-username */
+export function setTheUsername(urlRecord: URLRecord, username: string): void;
+
+/** https://url.spec.whatwg.org/#set-the-password */
+export function setThePassword(urlRecord: URLRecord, password: string): void;
+
+/** https://url.spec.whatwg.org/#url-opaque-path */
+export function hasAnOpaquePath(urlRecord: URLRecord): boolean;
+
+/** https://url.spec.whatwg.org/#cannot-have-a-username-password-port */
+export function cannotHaveAUsernamePasswordPort(urlRecord: URLRecord): boolean;
+
+/** https://url.spec.whatwg.org/#percent-decode */
+export function percentDecodeBytes(buffer: TypedArray): Uint8Array;
+
+/** https://url.spec.whatwg.org/#string-percent-decode */
+export function percentDecodeString(string: string): Uint8Array;
+
+export type TypedArray =
+    | Uint8Array
+    | Uint8ClampedArray
+    | Uint16Array
+    | Uint32Array
+    | Int8Array
+    | Int16Array
+    | Int32Array
+    | Float32Array
+    | Float64Array;
diff --git a/backend/node_modules/@types/whatwg-url/lib/URL-impl.d.ts b/backend/node_modules/@types/whatwg-url/lib/URL-impl.d.ts
new file mode 100644
index 0000000..c0bb598
--- /dev/null
+++ b/backend/node_modules/@types/whatwg-url/lib/URL-impl.d.ts
@@ -0,0 +1,22 @@
+import { Globals } from "webidl-conversions";
+import { implementation as URLSearchParamsImpl } from "./URLSearchParams-impl";
+
+declare class URLImpl {
+    constructor(globalObject: Globals, constructorArgs: readonly [url: string, base?: string]);
+
+    href: string;
+    readonly origin: string;
+    protocol: string;
+    username: string;
+    password: string;
+    host: string;
+    hostname: string;
+    port: string;
+    pathname: string;
+    search: string;
+    readonly searchParams: URLSearchParamsImpl;
+    hash: string;
+
+    toJSON(): string;
+}
+export { URLImpl as implementation };
diff --git a/backend/node_modules/@types/whatwg-url/lib/URL.d.ts b/backend/node_modules/@types/whatwg-url/lib/URL.d.ts
new file mode 100644
index 0000000..85474a7
--- /dev/null
+++ b/backend/node_modules/@types/whatwg-url/lib/URL.d.ts
@@ -0,0 +1,66 @@
+import { URL } from "../index";
+import { implementation as URLImpl } from "./URL-impl";
+
+/**
+ * Checks whether `obj` is a `URL` object with an implementation
+ * provided by this package.
+ */
+export function is(obj: unknown): obj is URL;
+
+/**
+ * Checks whether `obj` is a `URLImpl` WebIDL2JS implementation object
+ * provided by this package.
+ */
+export function isImpl(obj: unknown): obj is URLImpl;
+
+/**
+ * Converts the `URL` wrapper into a `URLImpl` object.
+ *
+ * @throws {TypeError} If `obj` is not a `URL` wrapper instance provided by this package.
+ */
+export function convert(globalObject: object, obj: unknown, { context }?: { context: string }): URLImpl;
+
+/**
+ * Creates a new `URL` instance.
+ *
+ * @throws {Error} If the `globalObject` doesn't have a WebIDL2JS constructor
+ *         registry or a `URL` constructor provided by this package
+ *         in the WebIDL2JS constructor registry.
+ */
+export function create(globalObject: object, constructorArgs: readonly [url: string, base?: string]): URL;
+
+/**
+ * Calls `create()` and returns the internal `URLImpl`.
+ *
+ * @throws {Error} If the `globalObject` doesn't have a WebIDL2JS constructor
+ *         registry or a `URL` constructor provided by this package
+ *         in the WebIDL2JS constructor registry.
+ */
+export function createImpl(globalObject: object, constructorArgs: readonly [url: string, base?: string]): URLImpl;
+
+/**
+ * Initializes the `URL` instance, called by `create()`.
+ *
+ * Useful when manually sub-classing a non-constructable wrapper object.
+ */
+export function setup<T extends URL>(
+    obj: T,
+    globalObject: object,
+    constructorArgs: readonly [url: string, base?: string],
+): T;
+
+/**
+ * Creates a new `URL` object without runing the constructor steps.
+ *
+ * Useful when implementing specifications that initialize objects
+ * in different ways than their constructors do.
+ */
+declare function _new(globalObject: object, newTarget?: new(url: string, base?: string) => URL): URLImpl;
+export { _new as new };
+
+/**
+ * Installs the `URL` constructor onto the `globalObject`.
+ *
+ * @throws {Error} If the target `globalObject` doesn't have an `Error` constructor.
+ */
+export function install(globalObject: object, globalNames: readonly string[]): void;
diff --git a/backend/node_modules/@types/whatwg-url/lib/URLSearchParams-impl.d.ts b/backend/node_modules/@types/whatwg-url/lib/URLSearchParams-impl.d.ts
new file mode 100644
index 0000000..cf50701
--- /dev/null
+++ b/backend/node_modules/@types/whatwg-url/lib/URLSearchParams-impl.d.ts
@@ -0,0 +1,20 @@
+declare class URLSearchParamsImpl {
+    constructor(
+        globalObject: object,
+        constructorArgs: readonly [
+            init?: ReadonlyArray<readonly [name: string, value: string]> | { readonly [name: string]: string } | string,
+        ],
+        privateData: { readonly doNotStripQMark?: boolean | undefined },
+    );
+
+    append(name: string, value: string): void;
+    delete(name: string): void;
+    get(name: string): string | null;
+    getAll(name: string): string[];
+    has(name: string): boolean;
+    set(name: string, value: string): void;
+    sort(): void;
+
+    [Symbol.iterator](): IterableIterator<[name: string, value: string]>;
+}
+export { URLSearchParamsImpl as implementation };
diff --git a/backend/node_modules/@types/whatwg-url/lib/URLSearchParams.d.ts b/backend/node_modules/@types/whatwg-url/lib/URLSearchParams.d.ts
new file mode 100644
index 0000000..8b35d1d
--- /dev/null
+++ b/backend/node_modules/@types/whatwg-url/lib/URLSearchParams.d.ts
@@ -0,0 +1,92 @@
+import { URLSearchParams } from "../index";
+import { implementation as URLSearchParamsImpl } from "./URLSearchParams-impl";
+
+/**
+ * Checks whether `obj` is a `URLSearchParams` object with an implementation
+ * provided by this package.
+ */
+export function is(obj: unknown): obj is URLSearchParams;
+
+/**
+ * Checks whether `obj` is a `URLSearchParamsImpl` WebIDL2JS implementation object
+ * provided by this package.
+ */
+export function isImpl(obj: unknown): obj is URLSearchParamsImpl;
+
+/**
+ * Converts the `URLSearchParams` wrapper into a `URLSearchParamsImpl` object.
+ *
+ * @throws {TypeError} If `obj` is not a `URLSearchParams` wrapper instance provided by this package.
+ */
+export function convert(globalObject: object, obj: unknown, { context }?: { context: string }): URLSearchParamsImpl;
+
+export function createDefaultIterator<TIteratorKind extends "key" | "value" | "key+value">(
+    globalObject: object,
+    target: URLSearchParamsImpl,
+    kind: TIteratorKind,
+): IterableIterator<TIteratorKind extends "key" | "value" ? string : [name: string, value: string]>;
+
+/**
+ * Creates a new `URLSearchParams` instance.
+ *
+ * @throws {Error} If the `globalObject` doesn't have a WebIDL2JS constructor
+ *         registry or a `URLSearchParams` constructor provided by this package
+ *         in the WebIDL2JS constructor registry.
+ */
+export function create(
+    globalObject: object,
+    constructorArgs?: readonly [
+        init: ReadonlyArray<[name: string, value: string]> | { readonly [name: string]: string } | string,
+    ],
+    privateData?: { doNotStripQMark?: boolean | undefined },
+): URLSearchParams;
+
+/**
+ * Calls `create()` and returns the internal `URLSearchParamsImpl`.
+ *
+ * @throws {Error} If the `globalObject` doesn't have a WebIDL2JS constructor
+ *         registry or a `URLSearchParams` constructor provided by this package
+ *         in the WebIDL2JS constructor registry.
+ */
+export function createImpl(
+    globalObject: object,
+    constructorArgs?: readonly [
+        init: ReadonlyArray<[name: string, value: string]> | { readonly [name: string]: string } | string,
+    ],
+    privateData?: { doNotStripQMark?: boolean | undefined },
+): URLSearchParamsImpl;
+
+/**
+ * Initializes the `URLSearchParams` instance, called by `create()`.
+ *
+ * Useful when manually sub-classing a non-constructable wrapper object.
+ */
+export function setup<T extends URLSearchParams>(
+    obj: T,
+    globalObject: object,
+    constructorArgs?: readonly [
+        init: ReadonlyArray<[name: string, value: string]> | { readonly [name: string]: string } | string,
+    ],
+    privateData?: { doNotStripQMark?: boolean | undefined },
+): T;
+
+/**
+ * Creates a new `URLSearchParams` object without runing the constructor steps.
+ *
+ * Useful when implementing specifications that initialize objects
+ * in different ways than their constructors do.
+ */
+declare function _new(
+    globalObject: object,
+    newTarget?: new(
+        init: ReadonlyArray<[name: string, value: string]> | { readonly [name: string]: string } | string,
+    ) => URLSearchParams,
+): URLSearchParamsImpl;
+export { _new as new };
+
+/**
+ * Installs the `URLSearchParams` constructor onto the `globalObject`.
+ *
+ * @throws {Error} If the target `globalObject` doesn't have an `Error` constructor.
+ */
+export function install(globalObject: object, globalNames: readonly string[]): void;
diff --git a/backend/node_modules/@types/whatwg-url/package.json b/backend/node_modules/@types/whatwg-url/package.json
new file mode 100644
index 0000000..418e8b6
--- /dev/null
+++ b/backend/node_modules/@types/whatwg-url/package.json
@@ -0,0 +1,37 @@
+{
+    "name": "@types/whatwg-url",
+    "version": "11.0.5",
+    "description": "TypeScript definitions for whatwg-url",
+    "homepage": "https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/whatwg-url",
+    "license": "MIT",
+    "contributors": [
+        {
+            "name": "Alexander Marks",
+            "githubUsername": "aomarks",
+            "url": "https://github.com/aomarks"
+        },
+        {
+            "name": "ExE Boss",
+            "githubUsername": "ExE-Boss",
+            "url": "https://github.com/ExE-Boss"
+        },
+        {
+            "name": "BendingBender",
+            "githubUsername": "BendingBender",
+            "url": "https://github.com/BendingBender"
+        }
+    ],
+    "main": "",
+    "types": "index.d.ts",
+    "repository": {
+        "type": "git",
+        "url": "https://github.com/DefinitelyTyped/DefinitelyTyped.git",
+        "directory": "types/whatwg-url"
+    },
+    "scripts": {},
+    "dependencies": {
+        "@types/webidl-conversions": "*"
+    },
+    "typesPublisherContentHash": "c6cfac1bbd7b2ef315fdad11fc9bdb6a8f0ae2b1c3ff057cfca7bc9880eeaa9d",
+    "typeScriptVersion": "4.7"
+}
\ No newline at end of file
diff --git a/backend/node_modules/@types/whatwg-url/webidl2js-wrapper.d.ts b/backend/node_modules/@types/whatwg-url/webidl2js-wrapper.d.ts
new file mode 100644
index 0000000..96029b7
--- /dev/null
+++ b/backend/node_modules/@types/whatwg-url/webidl2js-wrapper.d.ts
@@ -0,0 +1,4 @@
+import * as URL from "./lib/URL";
+import * as URLSearchParams from "./lib/URLSearchParams";
+
+export { URL, URLSearchParams };
diff --git a/backend/node_modules/accepts/HISTORY.md b/backend/node_modules/accepts/HISTORY.md
new file mode 100644
index 0000000..cb5990c
--- /dev/null
+++ b/backend/node_modules/accepts/HISTORY.md
@@ -0,0 +1,243 @@
+1.3.8 / 2022-02-02
+==================
+
+  * deps: mime-types@~2.1.34
+    - deps: mime-db@~1.51.0
+  * deps: negotiator@0.6.3
+
+1.3.7 / 2019-04-29
+==================
+
+  * deps: negotiator@0.6.2
+    - Fix sorting charset, encoding, and language with extra parameters
+
+1.3.6 / 2019-04-28
+==================
+
+  * deps: mime-types@~2.1.24
+    - deps: mime-db@~1.40.0
+
+1.3.5 / 2018-02-28
+==================
+
+  * deps: mime-types@~2.1.18
+    - deps: mime-db@~1.33.0
+
+1.3.4 / 2017-08-22
+==================
+
+  * deps: mime-types@~2.1.16
+    - deps: mime-db@~1.29.0
+
+1.3.3 / 2016-05-02
+==================
+
+  * deps: mime-types@~2.1.11
+    - deps: mime-db@~1.23.0
+  * deps: negotiator@0.6.1
+    - perf: improve `Accept` parsing speed
+    - perf: improve `Accept-Charset` parsing speed
+    - perf: improve `Accept-Encoding` parsing speed
+    - perf: improve `Accept-Language` parsing speed
+
+1.3.2 / 2016-03-08
+==================
+
+  * deps: mime-types@~2.1.10
+    - Fix extension of `application/dash+xml`
+    - Update primary extension for `audio/mp4`
+    - deps: mime-db@~1.22.0
+
+1.3.1 / 2016-01-19
+==================
+
+  * deps: mime-types@~2.1.9
+    - deps: mime-db@~1.21.0
+
+1.3.0 / 2015-09-29
+==================
+
+  * deps: mime-types@~2.1.7
+    - deps: mime-db@~1.19.0
+  * deps: negotiator@0.6.0
+    - Fix including type extensions in parameters in `Accept` parsing
+    - Fix parsing `Accept` parameters with quoted equals
+    - Fix parsing `Accept` parameters with quoted semicolons
+    - Lazy-load modules from main entry point
+    - perf: delay type concatenation until needed
+    - perf: enable strict mode
+    - perf: hoist regular expressions
+    - perf: remove closures getting spec properties
+    - perf: remove a closure from media type parsing
+    - perf: remove property delete from media type parsing
+
+1.2.13 / 2015-09-06
+===================
+
+  * deps: mime-types@~2.1.6
+    - deps: mime-db@~1.18.0
+
+1.2.12 / 2015-07-30
+===================
+
+  * deps: mime-types@~2.1.4
+    - deps: mime-db@~1.16.0
+
+1.2.11 / 2015-07-16
+===================
+
+  * deps: mime-types@~2.1.3
+    - deps: mime-db@~1.15.0
+
+1.2.10 / 2015-07-01
+===================
+
+  * deps: mime-types@~2.1.2
+    - deps: mime-db@~1.14.0
+
+1.2.9 / 2015-06-08
+==================
+
+  * deps: mime-types@~2.1.1
+    - perf: fix deopt during mapping
+
+1.2.8 / 2015-06-07
+==================
+
+  * deps: mime-types@~2.1.0
+    - deps: mime-db@~1.13.0
+  * perf: avoid argument reassignment & argument slice
+  * perf: avoid negotiator recursive construction
+  * perf: enable strict mode
+  * perf: remove unnecessary bitwise operator
+
+1.2.7 / 2015-05-10
+==================
+
+  * deps: negotiator@0.5.3
+    - Fix media type parameter matching to be case-insensitive
+
+1.2.6 / 2015-05-07
+==================
+
+  * deps: mime-types@~2.0.11
+    - deps: mime-db@~1.9.1
+  * deps: negotiator@0.5.2
+    - Fix comparing media types with quoted values
+    - Fix splitting media types with quoted commas
+
+1.2.5 / 2015-03-13
+==================
+
+  * deps: mime-types@~2.0.10
+    - deps: mime-db@~1.8.0
+
+1.2.4 / 2015-02-14
+==================
+
+  * Support Node.js 0.6
+  * deps: mime-types@~2.0.9
+    - deps: mime-db@~1.7.0
+  * deps: negotiator@0.5.1
+    - Fix preference sorting to be stable for long acceptable lists
+
+1.2.3 / 2015-01-31
+==================
+
+  * deps: mime-types@~2.0.8
+    - deps: mime-db@~1.6.0
+
+1.2.2 / 2014-12-30
+==================
+
+  * deps: mime-types@~2.0.7
+    - deps: mime-db@~1.5.0
+
+1.2.1 / 2014-12-30
+==================
+
+  * deps: mime-types@~2.0.5
+    - deps: mime-db@~1.3.1
+
+1.2.0 / 2014-12-19
+==================
+
+  * deps: negotiator@0.5.0
+    - Fix list return order when large accepted list
+    - Fix missing identity encoding when q=0 exists
+    - Remove dynamic building of Negotiator class
+
+1.1.4 / 2014-12-10
+==================
+
+  * deps: mime-types@~2.0.4
+    - deps: mime-db@~1.3.0
+
+1.1.3 / 2014-11-09
+==================
+
+  * deps: mime-types@~2.0.3
+    - deps: mime-db@~1.2.0
+
+1.1.2 / 2014-10-14
+==================
+
+  * deps: negotiator@0.4.9
+    - Fix error when media type has invalid parameter
+
+1.1.1 / 2014-09-28
+==================
+
+  * deps: mime-types@~2.0.2
+    - deps: mime-db@~1.1.0
+  * deps: negotiator@0.4.8
+    - Fix all negotiations to be case-insensitive
+    - Stable sort preferences of same quality according to client order
+
+1.1.0 / 2014-09-02
+==================
+
+  * update `mime-types`
+
+1.0.7 / 2014-07-04
+==================
+
+  * Fix wrong type returned from `type` when match after unknown extension
+
+1.0.6 / 2014-06-24
+==================
+
+  * deps: negotiator@0.4.7
+
+1.0.5 / 2014-06-20
+==================
+
+ * fix crash when unknown extension given
+
+1.0.4 / 2014-06-19
+==================
+
+  * use `mime-types`
+
+1.0.3 / 2014-06-11
+==================
+
+  * deps: negotiator@0.4.6
+    - Order by specificity when quality is the same
+
+1.0.2 / 2014-05-29
+==================
+
+  * Fix interpretation when header not in request
+  * deps: pin negotiator@0.4.5
+
+1.0.1 / 2014-01-18
+==================
+
+  * Identity encoding isn't always acceptable
+  * deps: negotiator@~0.4.0
+
+1.0.0 / 2013-12-27
+==================
+
+  * Genesis
diff --git a/backend/node_modules/accepts/LICENSE b/backend/node_modules/accepts/LICENSE
new file mode 100644
index 0000000..0616607
--- /dev/null
+++ b/backend/node_modules/accepts/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2014 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2015 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/accepts/README.md b/backend/node_modules/accepts/README.md
new file mode 100644
index 0000000..82680c5
--- /dev/null
+++ b/backend/node_modules/accepts/README.md
@@ -0,0 +1,140 @@
+# accepts
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][github-actions-ci-image]][github-actions-ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Higher level content negotiation based on [negotiator](https://www.npmjs.com/package/negotiator).
+Extracted from [koa](https://www.npmjs.com/package/koa) for general use.
+
+In addition to negotiator, it allows:
+
+- Allows types as an array or arguments list, ie `(['text/html', 'application/json'])`
+  as well as `('text/html', 'application/json')`.
+- Allows type shorthands such as `json`.
+- Returns `false` when no types match
+- Treats non-existent headers as `*`
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install accepts
+```
+
+## API
+
+```js
+var accepts = require('accepts')
+```
+
+### accepts(req)
+
+Create a new `Accepts` object for the given `req`.
+
+#### .charset(charsets)
+
+Return the first accepted charset. If nothing in `charsets` is accepted,
+then `false` is returned.
+
+#### .charsets()
+
+Return the charsets that the request accepts, in the order of the client's
+preference (most preferred first).
+
+#### .encoding(encodings)
+
+Return the first accepted encoding. If nothing in `encodings` is accepted,
+then `false` is returned.
+
+#### .encodings()
+
+Return the encodings that the request accepts, in the order of the client's
+preference (most preferred first).
+
+#### .language(languages)
+
+Return the first accepted language. If nothing in `languages` is accepted,
+then `false` is returned.
+
+#### .languages()
+
+Return the languages that the request accepts, in the order of the client's
+preference (most preferred first).
+
+#### .type(types)
+
+Return the first accepted type (and it is returned as the same text as what
+appears in the `types` array). If nothing in `types` is accepted, then `false`
+is returned.
+
+The `types` array can contain full MIME types or file extensions. Any value
+that is not a full MIME types is passed to `require('mime-types').lookup`.
+
+#### .types()
+
+Return the types that the request accepts, in the order of the client's
+preference (most preferred first).
+
+## Examples
+
+### Simple type negotiation
+
+This simple example shows how to use `accepts` to return a different typed
+respond body based on what the client wants to accept. The server lists it's
+preferences in order and will get back the best match between the client and
+server.
+
+```js
+var accepts = require('accepts')
+var http = require('http')
+
+function app (req, res) {
+  var accept = accepts(req)
+
+  // the order of this list is significant; should be server preferred order
+  switch (accept.type(['json', 'html'])) {
+    case 'json':
+      res.setHeader('Content-Type', 'application/json')
+      res.write('{"hello":"world!"}')
+      break
+    case 'html':
+      res.setHeader('Content-Type', 'text/html')
+      res.write('<b>hello, world!</b>')
+      break
+    default:
+      // the fallback is text/plain, so no need to specify it above
+      res.setHeader('Content-Type', 'text/plain')
+      res.write('hello, world!')
+      break
+  }
+
+  res.end()
+}
+
+http.createServer(app).listen(3000)
+```
+
+You can test this out with the cURL program:
+```sh
+curl -I -H'Accept: text/html' http://localhost:3000/
+```
+
+## License
+
+[MIT](LICENSE)
+
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/accepts/master
+[coveralls-url]: https://coveralls.io/r/jshttp/accepts?branch=master
+[github-actions-ci-image]: https://badgen.net/github/checks/jshttp/accepts/master?label=ci
+[github-actions-ci-url]: https://github.com/jshttp/accepts/actions/workflows/ci.yml
+[node-version-image]: https://badgen.net/npm/node/accepts
+[node-version-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/accepts
+[npm-url]: https://npmjs.org/package/accepts
+[npm-version-image]: https://badgen.net/npm/v/accepts
diff --git a/backend/node_modules/accepts/index.js b/backend/node_modules/accepts/index.js
new file mode 100644
index 0000000..e9b2f63
--- /dev/null
+++ b/backend/node_modules/accepts/index.js
@@ -0,0 +1,238 @@
+/*!
+ * accepts
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var Negotiator = require('negotiator')
+var mime = require('mime-types')
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = Accepts
+
+/**
+ * Create a new Accepts object for the given req.
+ *
+ * @param {object} req
+ * @public
+ */
+
+function Accepts (req) {
+  if (!(this instanceof Accepts)) {
+    return new Accepts(req)
+  }
+
+  this.headers = req.headers
+  this.negotiator = new Negotiator(req)
+}
+
+/**
+ * Check if the given `type(s)` is acceptable, returning
+ * the best match when true, otherwise `undefined`, in which
+ * case you should respond with 406 "Not Acceptable".
+ *
+ * The `type` value may be a single mime type string
+ * such as "application/json", the extension name
+ * such as "json" or an array `["json", "html", "text/plain"]`. When a list
+ * or array is given the _best_ match, if any is returned.
+ *
+ * Examples:
+ *
+ *     // Accept: text/html
+ *     this.types('html');
+ *     // => "html"
+ *
+ *     // Accept: text/*, application/json
+ *     this.types('html');
+ *     // => "html"
+ *     this.types('text/html');
+ *     // => "text/html"
+ *     this.types('json', 'text');
+ *     // => "json"
+ *     this.types('application/json');
+ *     // => "application/json"
+ *
+ *     // Accept: text/*, application/json
+ *     this.types('image/png');
+ *     this.types('png');
+ *     // => undefined
+ *
+ *     // Accept: text/*;q=.5, application/json
+ *     this.types(['html', 'json']);
+ *     this.types('html', 'json');
+ *     // => "json"
+ *
+ * @param {String|Array} types...
+ * @return {String|Array|Boolean}
+ * @public
+ */
+
+Accepts.prototype.type =
+Accepts.prototype.types = function (types_) {
+  var types = types_
+
+  // support flattened arguments
+  if (types && !Array.isArray(types)) {
+    types = new Array(arguments.length)
+    for (var i = 0; i < types.length; i++) {
+      types[i] = arguments[i]
+    }
+  }
+
+  // no types, return all requested types
+  if (!types || types.length === 0) {
+    return this.negotiator.mediaTypes()
+  }
+
+  // no accept header, return first given type
+  if (!this.headers.accept) {
+    return types[0]
+  }
+
+  var mimes = types.map(extToMime)
+  var accepts = this.negotiator.mediaTypes(mimes.filter(validMime))
+  var first = accepts[0]
+
+  return first
+    ? types[mimes.indexOf(first)]
+    : false
+}
+
+/**
+ * Return accepted encodings or best fit based on `encodings`.
+ *
+ * Given `Accept-Encoding: gzip, deflate`
+ * an array sorted by quality is returned:
+ *
+ *     ['gzip', 'deflate']
+ *
+ * @param {String|Array} encodings...
+ * @return {String|Array}
+ * @public
+ */
+
+Accepts.prototype.encoding =
+Accepts.prototype.encodings = function (encodings_) {
+  var encodings = encodings_
+
+  // support flattened arguments
+  if (encodings && !Array.isArray(encodings)) {
+    encodings = new Array(arguments.length)
+    for (var i = 0; i < encodings.length; i++) {
+      encodings[i] = arguments[i]
+    }
+  }
+
+  // no encodings, return all requested encodings
+  if (!encodings || encodings.length === 0) {
+    return this.negotiator.encodings()
+  }
+
+  return this.negotiator.encodings(encodings)[0] || false
+}
+
+/**
+ * Return accepted charsets or best fit based on `charsets`.
+ *
+ * Given `Accept-Charset: utf-8, iso-8859-1;q=0.2, utf-7;q=0.5`
+ * an array sorted by quality is returned:
+ *
+ *     ['utf-8', 'utf-7', 'iso-8859-1']
+ *
+ * @param {String|Array} charsets...
+ * @return {String|Array}
+ * @public
+ */
+
+Accepts.prototype.charset =
+Accepts.prototype.charsets = function (charsets_) {
+  var charsets = charsets_
+
+  // support flattened arguments
+  if (charsets && !Array.isArray(charsets)) {
+    charsets = new Array(arguments.length)
+    for (var i = 0; i < charsets.length; i++) {
+      charsets[i] = arguments[i]
+    }
+  }
+
+  // no charsets, return all requested charsets
+  if (!charsets || charsets.length === 0) {
+    return this.negotiator.charsets()
+  }
+
+  return this.negotiator.charsets(charsets)[0] || false
+}
+
+/**
+ * Return accepted languages or best fit based on `langs`.
+ *
+ * Given `Accept-Language: en;q=0.8, es, pt`
+ * an array sorted by quality is returned:
+ *
+ *     ['es', 'pt', 'en']
+ *
+ * @param {String|Array} langs...
+ * @return {Array|String}
+ * @public
+ */
+
+Accepts.prototype.lang =
+Accepts.prototype.langs =
+Accepts.prototype.language =
+Accepts.prototype.languages = function (languages_) {
+  var languages = languages_
+
+  // support flattened arguments
+  if (languages && !Array.isArray(languages)) {
+    languages = new Array(arguments.length)
+    for (var i = 0; i < languages.length; i++) {
+      languages[i] = arguments[i]
+    }
+  }
+
+  // no languages, return all requested languages
+  if (!languages || languages.length === 0) {
+    return this.negotiator.languages()
+  }
+
+  return this.negotiator.languages(languages)[0] || false
+}
+
+/**
+ * Convert extnames to mime.
+ *
+ * @param {String} type
+ * @return {String}
+ * @private
+ */
+
+function extToMime (type) {
+  return type.indexOf('/') === -1
+    ? mime.lookup(type)
+    : type
+}
+
+/**
+ * Check if mime is valid.
+ *
+ * @param {String} type
+ * @return {String}
+ * @private
+ */
+
+function validMime (type) {
+  return typeof type === 'string'
+}
diff --git a/backend/node_modules/accepts/package.json b/backend/node_modules/accepts/package.json
new file mode 100644
index 0000000..0f2d15d
--- /dev/null
+++ b/backend/node_modules/accepts/package.json
@@ -0,0 +1,47 @@
+{
+  "name": "accepts",
+  "description": "Higher-level content negotiation",
+  "version": "1.3.8",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)"
+  ],
+  "license": "MIT",
+  "repository": "jshttp/accepts",
+  "dependencies": {
+    "mime-types": "~2.1.34",
+    "negotiator": "0.6.3"
+  },
+  "devDependencies": {
+    "deep-equal": "1.0.1",
+    "eslint": "7.32.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.25.4",
+    "eslint-plugin-markdown": "2.2.1",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "4.3.1",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "9.2.0",
+    "nyc": "15.1.0"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --check-leaks --bail test/",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
+  },
+  "keywords": [
+    "content",
+    "negotiation",
+    "accept",
+    "accepts"
+  ]
+}
diff --git a/backend/node_modules/append-field/.npmignore b/backend/node_modules/append-field/.npmignore
new file mode 100644
index 0000000..c2658d7
--- /dev/null
+++ b/backend/node_modules/append-field/.npmignore
@@ -0,0 +1 @@
+node_modules/
diff --git a/backend/node_modules/append-field/LICENSE b/backend/node_modules/append-field/LICENSE
new file mode 100644
index 0000000..14b1f89
--- /dev/null
+++ b/backend/node_modules/append-field/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Linus Unnebäck
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/append-field/README.md b/backend/node_modules/append-field/README.md
new file mode 100644
index 0000000..62b901b
--- /dev/null
+++ b/backend/node_modules/append-field/README.md
@@ -0,0 +1,44 @@
+# `append-field`
+
+A [W3C HTML JSON forms spec](http://www.w3.org/TR/html-json-forms/) compliant
+field appender (for lack of a better name). Useful for people implementing
+`application/x-www-form-urlencoded` and `multipart/form-data` parsers.
+
+It works best on objects created with `Object.create(null)`. Otherwise it might
+conflict with variables from the prototype (e.g. `hasOwnProperty`).
+
+## Installation
+
+```sh
+npm install --save append-field
+```
+
+## Usage
+
+```javascript
+var appendField = require('append-field')
+var obj = Object.create(null)
+
+appendField(obj, 'pets[0][species]', 'Dahut')
+appendField(obj, 'pets[0][name]', 'Hypatia')
+appendField(obj, 'pets[1][species]', 'Felis Stultus')
+appendField(obj, 'pets[1][name]', 'Billie')
+
+console.log(obj)
+```
+
+```text
+{ pets:
+   [ { species: 'Dahut', name: 'Hypatia' },
+     { species: 'Felis Stultus', name: 'Billie' } ] }
+```
+
+## API
+
+### `appendField(store, key, value)`
+
+Adds the field named `key` with the value `value` to the object `store`.
+
+## License
+
+MIT
diff --git a/backend/node_modules/append-field/index.js b/backend/node_modules/append-field/index.js
new file mode 100644
index 0000000..fc5acc8
--- /dev/null
+++ b/backend/node_modules/append-field/index.js
@@ -0,0 +1,12 @@
+var parsePath = require('./lib/parse-path')
+var setValue = require('./lib/set-value')
+
+function appendField (store, key, value) {
+  var steps = parsePath(key)
+
+  steps.reduce(function (context, step) {
+    return setValue(context, step, context[step.key], value)
+  }, store)
+}
+
+module.exports = appendField
diff --git a/backend/node_modules/append-field/lib/parse-path.js b/backend/node_modules/append-field/lib/parse-path.js
new file mode 100644
index 0000000..31d6179
--- /dev/null
+++ b/backend/node_modules/append-field/lib/parse-path.js
@@ -0,0 +1,53 @@
+var reFirstKey = /^[^\[]*/
+var reDigitPath = /^\[(\d+)\]/
+var reNormalPath = /^\[([^\]]+)\]/
+
+function parsePath (key) {
+  function failure () {
+    return [{ type: 'object', key: key, last: true }]
+  }
+
+  var firstKey = reFirstKey.exec(key)[0]
+  if (!firstKey) return failure()
+
+  var len = key.length
+  var pos = firstKey.length
+  var tail = { type: 'object', key: firstKey }
+  var steps = [tail]
+
+  while (pos < len) {
+    var m
+
+    if (key[pos] === '[' && key[pos + 1] === ']') {
+      pos += 2
+      tail.append = true
+      if (pos !== len) return failure()
+      continue
+    }
+
+    m = reDigitPath.exec(key.substring(pos))
+    if (m !== null) {
+      pos += m[0].length
+      tail.nextType = 'array'
+      tail = { type: 'array', key: parseInt(m[1], 10) }
+      steps.push(tail)
+      continue
+    }
+
+    m = reNormalPath.exec(key.substring(pos))
+    if (m !== null) {
+      pos += m[0].length
+      tail.nextType = 'object'
+      tail = { type: 'object', key: m[1] }
+      steps.push(tail)
+      continue
+    }
+
+    return failure()
+  }
+
+  tail.last = true
+  return steps
+}
+
+module.exports = parsePath
diff --git a/backend/node_modules/append-field/lib/set-value.js b/backend/node_modules/append-field/lib/set-value.js
new file mode 100644
index 0000000..c15e873
--- /dev/null
+++ b/backend/node_modules/append-field/lib/set-value.js
@@ -0,0 +1,64 @@
+function valueType (value) {
+  if (value === undefined) return 'undefined'
+  if (Array.isArray(value)) return 'array'
+  if (typeof value === 'object') return 'object'
+  return 'scalar'
+}
+
+function setLastValue (context, step, currentValue, entryValue) {
+  switch (valueType(currentValue)) {
+    case 'undefined':
+      if (step.append) {
+        context[step.key] = [entryValue]
+      } else {
+        context[step.key] = entryValue
+      }
+      break
+    case 'array':
+      context[step.key].push(entryValue)
+      break
+    case 'object':
+      return setLastValue(currentValue, { type: 'object', key: '', last: true }, currentValue[''], entryValue)
+    case 'scalar':
+      context[step.key] = [context[step.key], entryValue]
+      break
+  }
+
+  return context
+}
+
+function setValue (context, step, currentValue, entryValue) {
+  if (step.last) return setLastValue(context, step, currentValue, entryValue)
+
+  var obj
+  switch (valueType(currentValue)) {
+    case 'undefined':
+      if (step.nextType === 'array') {
+        context[step.key] = []
+      } else {
+        context[step.key] = Object.create(null)
+      }
+      return context[step.key]
+    case 'object':
+      return context[step.key]
+    case 'array':
+      if (step.nextType === 'array') {
+        return currentValue
+      }
+
+      obj = Object.create(null)
+      context[step.key] = obj
+      currentValue.forEach(function (item, i) {
+        if (item !== undefined) obj['' + i] = item
+      })
+
+      return obj
+    case 'scalar':
+      obj = Object.create(null)
+      obj[''] = currentValue
+      context[step.key] = obj
+      return obj
+  }
+}
+
+module.exports = setValue
diff --git a/backend/node_modules/append-field/package.json b/backend/node_modules/append-field/package.json
new file mode 100644
index 0000000..8d6e716
--- /dev/null
+++ b/backend/node_modules/append-field/package.json
@@ -0,0 +1,19 @@
+{
+  "name": "append-field",
+  "version": "1.0.0",
+  "license": "MIT",
+  "author": "Linus Unnebäck <linus@folkdatorn.se>",
+  "main": "index.js",
+  "devDependencies": {
+    "mocha": "^2.2.4",
+    "standard": "^6.0.5",
+    "testdata-w3c-json-form": "^0.2.0"
+  },
+  "scripts": {
+    "test": "standard && mocha"
+  },
+  "repository": {
+    "type": "git",
+    "url": "http://github.com/LinusU/node-append-field.git"
+  }
+}
diff --git a/backend/node_modules/append-field/test/forms.js b/backend/node_modules/append-field/test/forms.js
new file mode 100644
index 0000000..dd6fbc9
--- /dev/null
+++ b/backend/node_modules/append-field/test/forms.js
@@ -0,0 +1,19 @@
+/* eslint-env mocha */
+
+var assert = require('assert')
+var appendField = require('../')
+var testData = require('testdata-w3c-json-form')
+
+describe('Append Field', function () {
+  for (var test of testData) {
+    it('handles ' + test.name, function () {
+      var store = Object.create(null)
+
+      for (var field of test.fields) {
+        appendField(store, field.key, field.value)
+      }
+
+      assert.deepEqual(store, test.expected)
+    })
+  }
+})
diff --git a/backend/node_modules/array-flatten/LICENSE b/backend/node_modules/array-flatten/LICENSE
new file mode 100644
index 0000000..983fbe8
--- /dev/null
+++ b/backend/node_modules/array-flatten/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Blake Embrey (hello@blakeembrey.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/array-flatten/README.md b/backend/node_modules/array-flatten/README.md
new file mode 100644
index 0000000..91fa5b6
--- /dev/null
+++ b/backend/node_modules/array-flatten/README.md
@@ -0,0 +1,43 @@
+# Array Flatten
+
+[![NPM version][npm-image]][npm-url]
+[![NPM downloads][downloads-image]][downloads-url]
+[![Build status][travis-image]][travis-url]
+[![Test coverage][coveralls-image]][coveralls-url]
+
+> Flatten an array of nested arrays into a single flat array. Accepts an optional depth.
+
+## Installation
+
+```
+npm install array-flatten --save
+```
+
+## Usage
+
+```javascript
+var flatten = require('array-flatten')
+
+flatten([1, [2, [3, [4, [5], 6], 7], 8], 9])
+//=> [1, 2, 3, 4, 5, 6, 7, 8, 9]
+
+flatten([1, [2, [3, [4, [5], 6], 7], 8], 9], 2)
+//=> [1, 2, 3, [4, [5], 6], 7, 8, 9]
+
+(function () {
+  flatten(arguments) //=> [1, 2, 3]
+})(1, [2, 3])
+```
+
+## License
+
+MIT
+
+[npm-image]: https://img.shields.io/npm/v/array-flatten.svg?style=flat
+[npm-url]: https://npmjs.org/package/array-flatten
+[downloads-image]: https://img.shields.io/npm/dm/array-flatten.svg?style=flat
+[downloads-url]: https://npmjs.org/package/array-flatten
+[travis-image]: https://img.shields.io/travis/blakeembrey/array-flatten.svg?style=flat
+[travis-url]: https://travis-ci.org/blakeembrey/array-flatten
+[coveralls-image]: https://img.shields.io/coveralls/blakeembrey/array-flatten.svg?style=flat
+[coveralls-url]: https://coveralls.io/r/blakeembrey/array-flatten?branch=master
diff --git a/backend/node_modules/array-flatten/array-flatten.js b/backend/node_modules/array-flatten/array-flatten.js
new file mode 100644
index 0000000..089117b
--- /dev/null
+++ b/backend/node_modules/array-flatten/array-flatten.js
@@ -0,0 +1,64 @@
+'use strict'
+
+/**
+ * Expose `arrayFlatten`.
+ */
+module.exports = arrayFlatten
+
+/**
+ * Recursive flatten function with depth.
+ *
+ * @param  {Array}  array
+ * @param  {Array}  result
+ * @param  {Number} depth
+ * @return {Array}
+ */
+function flattenWithDepth (array, result, depth) {
+  for (var i = 0; i < array.length; i++) {
+    var value = array[i]
+
+    if (depth > 0 && Array.isArray(value)) {
+      flattenWithDepth(value, result, depth - 1)
+    } else {
+      result.push(value)
+    }
+  }
+
+  return result
+}
+
+/**
+ * Recursive flatten function. Omitting depth is slightly faster.
+ *
+ * @param  {Array} array
+ * @param  {Array} result
+ * @return {Array}
+ */
+function flattenForever (array, result) {
+  for (var i = 0; i < array.length; i++) {
+    var value = array[i]
+
+    if (Array.isArray(value)) {
+      flattenForever(value, result)
+    } else {
+      result.push(value)
+    }
+  }
+
+  return result
+}
+
+/**
+ * Flatten an array, with the ability to define a depth.
+ *
+ * @param  {Array}  array
+ * @param  {Number} depth
+ * @return {Array}
+ */
+function arrayFlatten (array, depth) {
+  if (depth == null) {
+    return flattenForever(array, [])
+  }
+
+  return flattenWithDepth(array, [], depth)
+}
diff --git a/backend/node_modules/array-flatten/package.json b/backend/node_modules/array-flatten/package.json
new file mode 100644
index 0000000..1a24e2a
--- /dev/null
+++ b/backend/node_modules/array-flatten/package.json
@@ -0,0 +1,39 @@
+{
+  "name": "array-flatten",
+  "version": "1.1.1",
+  "description": "Flatten an array of nested arrays into a single flat array",
+  "main": "array-flatten.js",
+  "files": [
+    "array-flatten.js",
+    "LICENSE"
+  ],
+  "scripts": {
+    "test": "istanbul cover _mocha -- -R spec"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/blakeembrey/array-flatten.git"
+  },
+  "keywords": [
+    "array",
+    "flatten",
+    "arguments",
+    "depth"
+  ],
+  "author": {
+    "name": "Blake Embrey",
+    "email": "hello@blakeembrey.com",
+    "url": "http://blakeembrey.me"
+  },
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/blakeembrey/array-flatten/issues"
+  },
+  "homepage": "https://github.com/blakeembrey/array-flatten",
+  "devDependencies": {
+    "istanbul": "^0.3.13",
+    "mocha": "^2.2.4",
+    "pre-commit": "^1.0.7",
+    "standard": "^3.7.3"
+  }
+}
diff --git a/backend/node_modules/asynckit/LICENSE b/backend/node_modules/asynckit/LICENSE
new file mode 100644
index 0000000..c9eca5d
--- /dev/null
+++ b/backend/node_modules/asynckit/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 Alex Indigo
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/asynckit/README.md b/backend/node_modules/asynckit/README.md
new file mode 100644
index 0000000..ddcc7e6
--- /dev/null
+++ b/backend/node_modules/asynckit/README.md
@@ -0,0 +1,233 @@
+# asynckit [![NPM Module](https://img.shields.io/npm/v/asynckit.svg?style=flat)](https://www.npmjs.com/package/asynckit)
+
+Minimal async jobs utility library, with streams support.
+
+[![PhantomJS Build](https://img.shields.io/travis/alexindigo/asynckit/v0.4.0.svg?label=browser&style=flat)](https://travis-ci.org/alexindigo/asynckit)
+[![Linux Build](https://img.shields.io/travis/alexindigo/asynckit/v0.4.0.svg?label=linux:0.12-6.x&style=flat)](https://travis-ci.org/alexindigo/asynckit)
+[![Windows Build](https://img.shields.io/appveyor/ci/alexindigo/asynckit/v0.4.0.svg?label=windows:0.12-6.x&style=flat)](https://ci.appveyor.com/project/alexindigo/asynckit)
+
+[![Coverage Status](https://img.shields.io/coveralls/alexindigo/asynckit/v0.4.0.svg?label=code+coverage&style=flat)](https://coveralls.io/github/alexindigo/asynckit?branch=master)
+[![Dependency Status](https://img.shields.io/david/alexindigo/asynckit/v0.4.0.svg?style=flat)](https://david-dm.org/alexindigo/asynckit)
+[![bitHound Overall Score](https://www.bithound.io/github/alexindigo/asynckit/badges/score.svg)](https://www.bithound.io/github/alexindigo/asynckit)
+
+<!-- [![Readme](https://img.shields.io/badge/readme-tested-brightgreen.svg?style=flat)](https://www.npmjs.com/package/reamde) -->
+
+AsyncKit provides harness for `parallel` and `serial` iterators over list of items represented by arrays or objects.
+Optionally it accepts abort function (should be synchronously return by iterator for each item), and terminates left over jobs upon an error event. For specific iteration order built-in (`ascending` and `descending`) and custom sort helpers also supported, via `asynckit.serialOrdered` method.
+
+It ensures async operations to keep behavior more stable and prevent `Maximum call stack size exceeded` errors, from sync iterators.
+
+| compression        |     size |
+| :----------------- | -------: |
+| asynckit.js        | 12.34 kB |
+| asynckit.min.js    |  4.11 kB |
+| asynckit.min.js.gz |  1.47 kB |
+
+
+## Install
+
+```sh
+$ npm install --save asynckit
+```
+
+## Examples
+
+### Parallel Jobs
+
+Runs iterator over provided array in parallel. Stores output in the `result` array,
+on the matching positions. In unlikely event of an error from one of the jobs,
+will terminate rest of the active jobs (if abort function is provided)
+and return error along with salvaged data to the main callback function.
+
+#### Input Array
+
+```javascript
+var parallel = require('asynckit').parallel
+  , assert   = require('assert')
+  ;
+
+var source         = [ 1, 1, 4, 16, 64, 32, 8, 2 ]
+  , expectedResult = [ 2, 2, 8, 32, 128, 64, 16, 4 ]
+  , expectedTarget = [ 1, 1, 2, 4, 8, 16, 32, 64 ]
+  , target         = []
+  ;
+
+parallel(source, asyncJob, function(err, result)
+{
+  assert.deepEqual(result, expectedResult);
+  assert.deepEqual(target, expectedTarget);
+});
+
+// async job accepts one element from the array
+// and a callback function
+function asyncJob(item, cb)
+{
+  // different delays (in ms) per item
+  var delay = item * 25;
+
+  // pretend different jobs take different time to finish
+  // and not in consequential order
+  var timeoutId = setTimeout(function() {
+    target.push(item);
+    cb(null, item * 2);
+  }, delay);
+
+  // allow to cancel "leftover" jobs upon error
+  // return function, invoking of which will abort this job
+  return clearTimeout.bind(null, timeoutId);
+}
+```
+
+More examples could be found in [test/test-parallel-array.js](test/test-parallel-array.js).
+
+#### Input Object
+
+Also it supports named jobs, listed via object.
+
+```javascript
+var parallel = require('asynckit/parallel')
+  , assert   = require('assert')
+  ;
+
+var source         = { first: 1, one: 1, four: 4, sixteen: 16, sixtyFour: 64, thirtyTwo: 32, eight: 8, two: 2 }
+  , expectedResult = { first: 2, one: 2, four: 8, sixteen: 32, sixtyFour: 128, thirtyTwo: 64, eight: 16, two: 4 }
+  , expectedTarget = [ 1, 1, 2, 4, 8, 16, 32, 64 ]
+  , expectedKeys   = [ 'first', 'one', 'two', 'four', 'eight', 'sixteen', 'thirtyTwo', 'sixtyFour' ]
+  , target         = []
+  , keys           = []
+  ;
+
+parallel(source, asyncJob, function(err, result)
+{
+  assert.deepEqual(result, expectedResult);
+  assert.deepEqual(target, expectedTarget);
+  assert.deepEqual(keys, expectedKeys);
+});
+
+// supports full value, key, callback (shortcut) interface
+function asyncJob(item, key, cb)
+{
+  // different delays (in ms) per item
+  var delay = item * 25;
+
+  // pretend different jobs take different time to finish
+  // and not in consequential order
+  var timeoutId = setTimeout(function() {
+    keys.push(key);
+    target.push(item);
+    cb(null, item * 2);
+  }, delay);
+
+  // allow to cancel "leftover" jobs upon error
+  // return function, invoking of which will abort this job
+  return clearTimeout.bind(null, timeoutId);
+}
+```
+
+More examples could be found in [test/test-parallel-object.js](test/test-parallel-object.js).
+
+### Serial Jobs
+
+Runs iterator over provided array sequentially. Stores output in the `result` array,
+on the matching positions. In unlikely event of an error from one of the jobs,
+will not proceed to the rest of the items in the list
+and return error along with salvaged data to the main callback function.
+
+#### Input Array
+
+```javascript
+var serial = require('asynckit/serial')
+  , assert = require('assert')
+  ;
+
+var source         = [ 1, 1, 4, 16, 64, 32, 8, 2 ]
+  , expectedResult = [ 2, 2, 8, 32, 128, 64, 16, 4 ]
+  , expectedTarget = [ 0, 1, 2, 3, 4, 5, 6, 7 ]
+  , target         = []
+  ;
+
+serial(source, asyncJob, function(err, result)
+{
+  assert.deepEqual(result, expectedResult);
+  assert.deepEqual(target, expectedTarget);
+});
+
+// extended interface (item, key, callback)
+// also supported for arrays
+function asyncJob(item, key, cb)
+{
+  target.push(key);
+
+  // it will be automatically made async
+  // even it iterator "returns" in the same event loop
+  cb(null, item * 2);
+}
+```
+
+More examples could be found in [test/test-serial-array.js](test/test-serial-array.js).
+
+#### Input Object
+
+Also it supports named jobs, listed via object.
+
+```javascript
+var serial = require('asynckit').serial
+  , assert = require('assert')
+  ;
+
+var source         = [ 1, 1, 4, 16, 64, 32, 8, 2 ]
+  , expectedResult = [ 2, 2, 8, 32, 128, 64, 16, 4 ]
+  , expectedTarget = [ 0, 1, 2, 3, 4, 5, 6, 7 ]
+  , target         = []
+  ;
+
+var source         = { first: 1, one: 1, four: 4, sixteen: 16, sixtyFour: 64, thirtyTwo: 32, eight: 8, two: 2 }
+  , expectedResult = { first: 2, one: 2, four: 8, sixteen: 32, sixtyFour: 128, thirtyTwo: 64, eight: 16, two: 4 }
+  , expectedTarget = [ 1, 1, 4, 16, 64, 32, 8, 2 ]
+  , target         = []
+  ;
+
+
+serial(source, asyncJob, function(err, result)
+{
+  assert.deepEqual(result, expectedResult);
+  assert.deepEqual(target, expectedTarget);
+});
+
+// shortcut interface (item, callback)
+// works for object as well as for the arrays
+function asyncJob(item, cb)
+{
+  target.push(item);
+
+  // it will be automatically made async
+  // even it iterator "returns" in the same event loop
+  cb(null, item * 2);
+}
+```
+
+More examples could be found in [test/test-serial-object.js](test/test-serial-object.js).
+
+_Note: Since _object_ is an _unordered_ collection of properties,
+it may produce unexpected results with sequential iterations.
+Whenever order of the jobs' execution is important please use `serialOrdered` method._
+
+### Ordered Serial Iterations
+
+TBD
+
+For example [compare-property](compare-property) package.
+
+### Streaming interface
+
+TBD
+
+## Want to Know More?
+
+More examples can be found in [test folder](test/).
+
+Or open an [issue](https://github.com/alexindigo/asynckit/issues) with questions and/or suggestions.
+
+## License
+
+AsyncKit is licensed under the MIT license.
diff --git a/backend/node_modules/asynckit/bench.js b/backend/node_modules/asynckit/bench.js
new file mode 100644
index 0000000..c612f1a
--- /dev/null
+++ b/backend/node_modules/asynckit/bench.js
@@ -0,0 +1,76 @@
+/* eslint no-console: "off" */
+
+var asynckit = require('./')
+  , async    = require('async')
+  , assert   = require('assert')
+  , expected = 0
+  ;
+
+var Benchmark = require('benchmark');
+var suite = new Benchmark.Suite;
+
+var source = [];
+for (var z = 1; z < 100; z++)
+{
+  source.push(z);
+  expected += z;
+}
+
+suite
+// add tests
+
+.add('async.map', function(deferred)
+{
+  var total = 0;
+
+  async.map(source,
+  function(i, cb)
+  {
+    setImmediate(function()
+    {
+      total += i;
+      cb(null, total);
+    });
+  },
+  function(err, result)
+  {
+    assert.ifError(err);
+    assert.equal(result[result.length - 1], expected);
+    deferred.resolve();
+  });
+}, {'defer': true})
+
+
+.add('asynckit.parallel', function(deferred)
+{
+  var total = 0;
+
+  asynckit.parallel(source,
+  function(i, cb)
+  {
+    setImmediate(function()
+    {
+      total += i;
+      cb(null, total);
+    });
+  },
+  function(err, result)
+  {
+    assert.ifError(err);
+    assert.equal(result[result.length - 1], expected);
+    deferred.resolve();
+  });
+}, {'defer': true})
+
+
+// add listeners
+.on('cycle', function(ev)
+{
+  console.log(String(ev.target));
+})
+.on('complete', function()
+{
+  console.log('Fastest is ' + this.filter('fastest').map('name'));
+})
+// run async
+.run({ 'async': true });
diff --git a/backend/node_modules/asynckit/index.js b/backend/node_modules/asynckit/index.js
new file mode 100644
index 0000000..455f945
--- /dev/null
+++ b/backend/node_modules/asynckit/index.js
@@ -0,0 +1,6 @@
+module.exports =
+{
+  parallel      : require('./parallel.js'),
+  serial        : require('./serial.js'),
+  serialOrdered : require('./serialOrdered.js')
+};
diff --git a/backend/node_modules/asynckit/lib/abort.js b/backend/node_modules/asynckit/lib/abort.js
new file mode 100644
index 0000000..114367e
--- /dev/null
+++ b/backend/node_modules/asynckit/lib/abort.js
@@ -0,0 +1,29 @@
+// API
+module.exports = abort;
+
+/**
+ * Aborts leftover active jobs
+ *
+ * @param {object} state - current state object
+ */
+function abort(state)
+{
+  Object.keys(state.jobs).forEach(clean.bind(state));
+
+  // reset leftover jobs
+  state.jobs = {};
+}
+
+/**
+ * Cleans up leftover job by invoking abort function for the provided job id
+ *
+ * @this  state
+ * @param {string|number} key - job id to abort
+ */
+function clean(key)
+{
+  if (typeof this.jobs[key] == 'function')
+  {
+    this.jobs[key]();
+  }
+}
diff --git a/backend/node_modules/asynckit/lib/async.js b/backend/node_modules/asynckit/lib/async.js
new file mode 100644
index 0000000..7f1288a
--- /dev/null
+++ b/backend/node_modules/asynckit/lib/async.js
@@ -0,0 +1,34 @@
+var defer = require('./defer.js');
+
+// API
+module.exports = async;
+
+/**
+ * Runs provided callback asynchronously
+ * even if callback itself is not
+ *
+ * @param   {function} callback - callback to invoke
+ * @returns {function} - augmented callback
+ */
+function async(callback)
+{
+  var isAsync = false;
+
+  // check if async happened
+  defer(function() { isAsync = true; });
+
+  return function async_callback(err, result)
+  {
+    if (isAsync)
+    {
+      callback(err, result);
+    }
+    else
+    {
+      defer(function nextTick_callback()
+      {
+        callback(err, result);
+      });
+    }
+  };
+}
diff --git a/backend/node_modules/asynckit/lib/defer.js b/backend/node_modules/asynckit/lib/defer.js
new file mode 100644
index 0000000..b67110c
--- /dev/null
+++ b/backend/node_modules/asynckit/lib/defer.js
@@ -0,0 +1,26 @@
+module.exports = defer;
+
+/**
+ * Runs provided function on next iteration of the event loop
+ *
+ * @param {function} fn - function to run
+ */
+function defer(fn)
+{
+  var nextTick = typeof setImmediate == 'function'
+    ? setImmediate
+    : (
+      typeof process == 'object' && typeof process.nextTick == 'function'
+      ? process.nextTick
+      : null
+    );
+
+  if (nextTick)
+  {
+    nextTick(fn);
+  }
+  else
+  {
+    setTimeout(fn, 0);
+  }
+}
diff --git a/backend/node_modules/asynckit/lib/iterate.js b/backend/node_modules/asynckit/lib/iterate.js
new file mode 100644
index 0000000..5d2839a
--- /dev/null
+++ b/backend/node_modules/asynckit/lib/iterate.js
@@ -0,0 +1,75 @@
+var async = require('./async.js')
+  , abort = require('./abort.js')
+  ;
+
+// API
+module.exports = iterate;
+
+/**
+ * Iterates over each job object
+ *
+ * @param {array|object} list - array or object (named list) to iterate over
+ * @param {function} iterator - iterator to run
+ * @param {object} state - current job status
+ * @param {function} callback - invoked when all elements processed
+ */
+function iterate(list, iterator, state, callback)
+{
+  // store current index
+  var key = state['keyedList'] ? state['keyedList'][state.index] : state.index;
+
+  state.jobs[key] = runJob(iterator, key, list[key], function(error, output)
+  {
+    // don't repeat yourself
+    // skip secondary callbacks
+    if (!(key in state.jobs))
+    {
+      return;
+    }
+
+    // clean up jobs
+    delete state.jobs[key];
+
+    if (error)
+    {
+      // don't process rest of the results
+      // stop still active jobs
+      // and reset the list
+      abort(state);
+    }
+    else
+    {
+      state.results[key] = output;
+    }
+
+    // return salvaged results
+    callback(error, state.results);
+  });
+}
+
+/**
+ * Runs iterator over provided job element
+ *
+ * @param   {function} iterator - iterator to invoke
+ * @param   {string|number} key - key/index of the element in the list of jobs
+ * @param   {mixed} item - job description
+ * @param   {function} callback - invoked after iterator is done with the job
+ * @returns {function|mixed} - job abort function or something else
+ */
+function runJob(iterator, key, item, callback)
+{
+  var aborter;
+
+  // allow shortcut if iterator expects only two arguments
+  if (iterator.length == 2)
+  {
+    aborter = iterator(item, async(callback));
+  }
+  // otherwise go with full three arguments
+  else
+  {
+    aborter = iterator(item, key, async(callback));
+  }
+
+  return aborter;
+}
diff --git a/backend/node_modules/asynckit/lib/readable_asynckit.js b/backend/node_modules/asynckit/lib/readable_asynckit.js
new file mode 100644
index 0000000..78ad240
--- /dev/null
+++ b/backend/node_modules/asynckit/lib/readable_asynckit.js
@@ -0,0 +1,91 @@
+var streamify = require('./streamify.js')
+  , defer     = require('./defer.js')
+  ;
+
+// API
+module.exports = ReadableAsyncKit;
+
+/**
+ * Base constructor for all streams
+ * used to hold properties/methods
+ */
+function ReadableAsyncKit()
+{
+  ReadableAsyncKit.super_.apply(this, arguments);
+
+  // list of active jobs
+  this.jobs = {};
+
+  // add stream methods
+  this.destroy = destroy;
+  this._start  = _start;
+  this._read   = _read;
+}
+
+/**
+ * Destroys readable stream,
+ * by aborting outstanding jobs
+ *
+ * @returns {void}
+ */
+function destroy()
+{
+  if (this.destroyed)
+  {
+    return;
+  }
+
+  this.destroyed = true;
+
+  if (typeof this.terminator == 'function')
+  {
+    this.terminator();
+  }
+}
+
+/**
+ * Starts provided jobs in async manner
+ *
+ * @private
+ */
+function _start()
+{
+  // first argument – runner function
+  var runner = arguments[0]
+    // take away first argument
+    , args   = Array.prototype.slice.call(arguments, 1)
+      // second argument - input data
+    , input  = args[0]
+      // last argument - result callback
+    , endCb  = streamify.callback.call(this, args[args.length - 1])
+    ;
+
+  args[args.length - 1] = endCb;
+  // third argument - iterator
+  args[1] = streamify.iterator.call(this, args[1]);
+
+  // allow time for proper setup
+  defer(function()
+  {
+    if (!this.destroyed)
+    {
+      this.terminator = runner.apply(null, args);
+    }
+    else
+    {
+      endCb(null, Array.isArray(input) ? [] : {});
+    }
+  }.bind(this));
+}
+
+
+/**
+ * Implement _read to comply with Readable streams
+ * Doesn't really make sense for flowing object mode
+ *
+ * @private
+ */
+function _read()
+{
+
+}
diff --git a/backend/node_modules/asynckit/lib/readable_parallel.js b/backend/node_modules/asynckit/lib/readable_parallel.js
new file mode 100644
index 0000000..5d2929f
--- /dev/null
+++ b/backend/node_modules/asynckit/lib/readable_parallel.js
@@ -0,0 +1,25 @@
+var parallel = require('../parallel.js');
+
+// API
+module.exports = ReadableParallel;
+
+/**
+ * Streaming wrapper to `asynckit.parallel`
+ *
+ * @param   {array|object} list - array or object (named list) to iterate over
+ * @param   {function} iterator - iterator to run
+ * @param   {function} callback - invoked when all elements processed
+ * @returns {stream.Readable#}
+ */
+function ReadableParallel(list, iterator, callback)
+{
+  if (!(this instanceof ReadableParallel))
+  {
+    return new ReadableParallel(list, iterator, callback);
+  }
+
+  // turn on object mode
+  ReadableParallel.super_.call(this, {objectMode: true});
+
+  this._start(parallel, list, iterator, callback);
+}
diff --git a/backend/node_modules/asynckit/lib/readable_serial.js b/backend/node_modules/asynckit/lib/readable_serial.js
new file mode 100644
index 0000000..7822698
--- /dev/null
+++ b/backend/node_modules/asynckit/lib/readable_serial.js
@@ -0,0 +1,25 @@
+var serial = require('../serial.js');
+
+// API
+module.exports = ReadableSerial;
+
+/**
+ * Streaming wrapper to `asynckit.serial`
+ *
+ * @param   {array|object} list - array or object (named list) to iterate over
+ * @param   {function} iterator - iterator to run
+ * @param   {function} callback - invoked when all elements processed
+ * @returns {stream.Readable#}
+ */
+function ReadableSerial(list, iterator, callback)
+{
+  if (!(this instanceof ReadableSerial))
+  {
+    return new ReadableSerial(list, iterator, callback);
+  }
+
+  // turn on object mode
+  ReadableSerial.super_.call(this, {objectMode: true});
+
+  this._start(serial, list, iterator, callback);
+}
diff --git a/backend/node_modules/asynckit/lib/readable_serial_ordered.js b/backend/node_modules/asynckit/lib/readable_serial_ordered.js
new file mode 100644
index 0000000..3de89c4
--- /dev/null
+++ b/backend/node_modules/asynckit/lib/readable_serial_ordered.js
@@ -0,0 +1,29 @@
+var serialOrdered = require('../serialOrdered.js');
+
+// API
+module.exports = ReadableSerialOrdered;
+// expose sort helpers
+module.exports.ascending  = serialOrdered.ascending;
+module.exports.descending = serialOrdered.descending;
+
+/**
+ * Streaming wrapper to `asynckit.serialOrdered`
+ *
+ * @param   {array|object} list - array or object (named list) to iterate over
+ * @param   {function} iterator - iterator to run
+ * @param   {function} sortMethod - custom sort function
+ * @param   {function} callback - invoked when all elements processed
+ * @returns {stream.Readable#}
+ */
+function ReadableSerialOrdered(list, iterator, sortMethod, callback)
+{
+  if (!(this instanceof ReadableSerialOrdered))
+  {
+    return new ReadableSerialOrdered(list, iterator, sortMethod, callback);
+  }
+
+  // turn on object mode
+  ReadableSerialOrdered.super_.call(this, {objectMode: true});
+
+  this._start(serialOrdered, list, iterator, sortMethod, callback);
+}
diff --git a/backend/node_modules/asynckit/lib/state.js b/backend/node_modules/asynckit/lib/state.js
new file mode 100644
index 0000000..cbea7ad
--- /dev/null
+++ b/backend/node_modules/asynckit/lib/state.js
@@ -0,0 +1,37 @@
+// API
+module.exports = state;
+
+/**
+ * Creates initial state object
+ * for iteration over list
+ *
+ * @param   {array|object} list - list to iterate over
+ * @param   {function|null} sortMethod - function to use for keys sort,
+ *                                     or `null` to keep them as is
+ * @returns {object} - initial state object
+ */
+function state(list, sortMethod)
+{
+  var isNamedList = !Array.isArray(list)
+    , initState =
+    {
+      index    : 0,
+      keyedList: isNamedList || sortMethod ? Object.keys(list) : null,
+      jobs     : {},
+      results  : isNamedList ? {} : [],
+      size     : isNamedList ? Object.keys(list).length : list.length
+    }
+    ;
+
+  if (sortMethod)
+  {
+    // sort array keys based on it's values
+    // sort object's keys just on own merit
+    initState.keyedList.sort(isNamedList ? sortMethod : function(a, b)
+    {
+      return sortMethod(list[a], list[b]);
+    });
+  }
+
+  return initState;
+}
diff --git a/backend/node_modules/asynckit/lib/streamify.js b/backend/node_modules/asynckit/lib/streamify.js
new file mode 100644
index 0000000..f56a1c9
--- /dev/null
+++ b/backend/node_modules/asynckit/lib/streamify.js
@@ -0,0 +1,141 @@
+var async = require('./async.js');
+
+// API
+module.exports = {
+  iterator: wrapIterator,
+  callback: wrapCallback
+};
+
+/**
+ * Wraps iterators with long signature
+ *
+ * @this    ReadableAsyncKit#
+ * @param   {function} iterator - function to wrap
+ * @returns {function} - wrapped function
+ */
+function wrapIterator(iterator)
+{
+  var stream = this;
+
+  return function(item, key, cb)
+  {
+    var aborter
+      , wrappedCb = async(wrapIteratorCallback.call(stream, cb, key))
+      ;
+
+    stream.jobs[key] = wrappedCb;
+
+    // it's either shortcut (item, cb)
+    if (iterator.length == 2)
+    {
+      aborter = iterator(item, wrappedCb);
+    }
+    // or long format (item, key, cb)
+    else
+    {
+      aborter = iterator(item, key, wrappedCb);
+    }
+
+    return aborter;
+  };
+}
+
+/**
+ * Wraps provided callback function
+ * allowing to execute snitch function before
+ * real callback
+ *
+ * @this    ReadableAsyncKit#
+ * @param   {function} callback - function to wrap
+ * @returns {function} - wrapped function
+ */
+function wrapCallback(callback)
+{
+  var stream = this;
+
+  var wrapped = function(error, result)
+  {
+    return finisher.call(stream, error, result, callback);
+  };
+
+  return wrapped;
+}
+
+/**
+ * Wraps provided iterator callback function
+ * makes sure snitch only called once,
+ * but passes secondary calls to the original callback
+ *
+ * @this    ReadableAsyncKit#
+ * @param   {function} callback - callback to wrap
+ * @param   {number|string} key - iteration key
+ * @returns {function} wrapped callback
+ */
+function wrapIteratorCallback(callback, key)
+{
+  var stream = this;
+
+  return function(error, output)
+  {
+    // don't repeat yourself
+    if (!(key in stream.jobs))
+    {
+      callback(error, output);
+      return;
+    }
+
+    // clean up jobs
+    delete stream.jobs[key];
+
+    return streamer.call(stream, error, {key: key, value: output}, callback);
+  };
+}
+
+/**
+ * Stream wrapper for iterator callback
+ *
+ * @this  ReadableAsyncKit#
+ * @param {mixed} error - error response
+ * @param {mixed} output - iterator output
+ * @param {function} callback - callback that expects iterator results
+ */
+function streamer(error, output, callback)
+{
+  if (error && !this.error)
+  {
+    this.error = error;
+    this.pause();
+    this.emit('error', error);
+    // send back value only, as expected
+    callback(error, output && output.value);
+    return;
+  }
+
+  // stream stuff
+  this.push(output);
+
+  // back to original track
+  // send back value only, as expected
+  callback(error, output && output.value);
+}
+
+/**
+ * Stream wrapper for finishing callback
+ *
+ * @this  ReadableAsyncKit#
+ * @param {mixed} error - error response
+ * @param {mixed} output - iterator output
+ * @param {function} callback - callback that expects final results
+ */
+function finisher(error, output, callback)
+{
+  // signal end of the stream
+  // only for successfully finished streams
+  if (!error)
+  {
+    this.push(null);
+  }
+
+  // back to original track
+  callback(error, output);
+}
diff --git a/backend/node_modules/asynckit/lib/terminator.js b/backend/node_modules/asynckit/lib/terminator.js
new file mode 100644
index 0000000..d6eb992
--- /dev/null
+++ b/backend/node_modules/asynckit/lib/terminator.js
@@ -0,0 +1,29 @@
+var abort = require('./abort.js')
+  , async = require('./async.js')
+  ;
+
+// API
+module.exports = terminator;
+
+/**
+ * Terminates jobs in the attached state context
+ *
+ * @this  AsyncKitState#
+ * @param {function} callback - final callback to invoke after termination
+ */
+function terminator(callback)
+{
+  if (!Object.keys(this.jobs).length)
+  {
+    return;
+  }
+
+  // fast forward iteration index
+  this.index = this.size;
+
+  // abort jobs
+  abort(this);
+
+  // send back results we have so far
+  async(callback)(null, this.results);
+}
diff --git a/backend/node_modules/asynckit/package.json b/backend/node_modules/asynckit/package.json
new file mode 100644
index 0000000..51147d6
--- /dev/null
+++ b/backend/node_modules/asynckit/package.json
@@ -0,0 +1,63 @@
+{
+  "name": "asynckit",
+  "version": "0.4.0",
+  "description": "Minimal async jobs utility library, with streams support",
+  "main": "index.js",
+  "scripts": {
+    "clean": "rimraf coverage",
+    "lint": "eslint *.js lib/*.js test/*.js",
+    "test": "istanbul cover --reporter=json tape -- 'test/test-*.js' | tap-spec",
+    "win-test": "tape test/test-*.js",
+    "browser": "browserify -t browserify-istanbul test/lib/browserify_adjustment.js test/test-*.js | obake --coverage | tap-spec",
+    "report": "istanbul report",
+    "size": "browserify index.js | size-table asynckit",
+    "debug": "tape test/test-*.js"
+  },
+  "pre-commit": [
+    "clean",
+    "lint",
+    "test",
+    "browser",
+    "report",
+    "size"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/alexindigo/asynckit.git"
+  },
+  "keywords": [
+    "async",
+    "jobs",
+    "parallel",
+    "serial",
+    "iterator",
+    "array",
+    "object",
+    "stream",
+    "destroy",
+    "terminate",
+    "abort"
+  ],
+  "author": "Alex Indigo <iam@alexindigo.com>",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/alexindigo/asynckit/issues"
+  },
+  "homepage": "https://github.com/alexindigo/asynckit#readme",
+  "devDependencies": {
+    "browserify": "^13.0.0",
+    "browserify-istanbul": "^2.0.0",
+    "coveralls": "^2.11.9",
+    "eslint": "^2.9.0",
+    "istanbul": "^0.4.3",
+    "obake": "^0.1.2",
+    "phantomjs-prebuilt": "^2.1.7",
+    "pre-commit": "^1.1.3",
+    "reamde": "^1.1.0",
+    "rimraf": "^2.5.2",
+    "size-table": "^0.2.0",
+    "tap-spec": "^4.1.1",
+    "tape": "^4.5.1"
+  },
+  "dependencies": {}
+}
diff --git a/backend/node_modules/asynckit/parallel.js b/backend/node_modules/asynckit/parallel.js
new file mode 100644
index 0000000..3c50344
--- /dev/null
+++ b/backend/node_modules/asynckit/parallel.js
@@ -0,0 +1,43 @@
+var iterate    = require('./lib/iterate.js')
+  , initState  = require('./lib/state.js')
+  , terminator = require('./lib/terminator.js')
+  ;
+
+// Public API
+module.exports = parallel;
+
+/**
+ * Runs iterator over provided array elements in parallel
+ *
+ * @param   {array|object} list - array or object (named list) to iterate over
+ * @param   {function} iterator - iterator to run
+ * @param   {function} callback - invoked when all elements processed
+ * @returns {function} - jobs terminator
+ */
+function parallel(list, iterator, callback)
+{
+  var state = initState(list);
+
+  while (state.index < (state['keyedList'] || list).length)
+  {
+    iterate(list, iterator, state, function(error, result)
+    {
+      if (error)
+      {
+        callback(error, result);
+        return;
+      }
+
+      // looks like it's the last one
+      if (Object.keys(state.jobs).length === 0)
+      {
+        callback(null, state.results);
+        return;
+      }
+    });
+
+    state.index++;
+  }
+
+  return terminator.bind(state, callback);
+}
diff --git a/backend/node_modules/asynckit/serial.js b/backend/node_modules/asynckit/serial.js
new file mode 100644
index 0000000..6cd949a
--- /dev/null
+++ b/backend/node_modules/asynckit/serial.js
@@ -0,0 +1,17 @@
+var serialOrdered = require('./serialOrdered.js');
+
+// Public API
+module.exports = serial;
+
+/**
+ * Runs iterator over provided array elements in series
+ *
+ * @param   {array|object} list - array or object (named list) to iterate over
+ * @param   {function} iterator - iterator to run
+ * @param   {function} callback - invoked when all elements processed
+ * @returns {function} - jobs terminator
+ */
+function serial(list, iterator, callback)
+{
+  return serialOrdered(list, iterator, null, callback);
+}
diff --git a/backend/node_modules/asynckit/serialOrdered.js b/backend/node_modules/asynckit/serialOrdered.js
new file mode 100644
index 0000000..607eafe
--- /dev/null
+++ b/backend/node_modules/asynckit/serialOrdered.js
@@ -0,0 +1,75 @@
+var iterate    = require('./lib/iterate.js')
+  , initState  = require('./lib/state.js')
+  , terminator = require('./lib/terminator.js')
+  ;
+
+// Public API
+module.exports = serialOrdered;
+// sorting helpers
+module.exports.ascending  = ascending;
+module.exports.descending = descending;
+
+/**
+ * Runs iterator over provided sorted array elements in series
+ *
+ * @param   {array|object} list - array or object (named list) to iterate over
+ * @param   {function} iterator - iterator to run
+ * @param   {function} sortMethod - custom sort function
+ * @param   {function} callback - invoked when all elements processed
+ * @returns {function} - jobs terminator
+ */
+function serialOrdered(list, iterator, sortMethod, callback)
+{
+  var state = initState(list, sortMethod);
+
+  iterate(list, iterator, state, function iteratorHandler(error, result)
+  {
+    if (error)
+    {
+      callback(error, result);
+      return;
+    }
+
+    state.index++;
+
+    // are we there yet?
+    if (state.index < (state['keyedList'] || list).length)
+    {
+      iterate(list, iterator, state, iteratorHandler);
+      return;
+    }
+
+    // done here
+    callback(null, state.results);
+  });
+
+  return terminator.bind(state, callback);
+}
+
+/*
+ * -- Sort methods
+ */
+
+/**
+ * sort helper to sort array elements in ascending order
+ *
+ * @param   {mixed} a - an item to compare
+ * @param   {mixed} b - an item to compare
+ * @returns {number} - comparison result
+ */
+function ascending(a, b)
+{
+  return a < b ? -1 : a > b ? 1 : 0;
+}
+
+/**
+ * sort helper to sort array elements in descending order
+ *
+ * @param   {mixed} a - an item to compare
+ * @param   {mixed} b - an item to compare
+ * @returns {number} - comparison result
+ */
+function descending(a, b)
+{
+  return -1 * ascending(a, b);
+}
diff --git a/backend/node_modules/asynckit/stream.js b/backend/node_modules/asynckit/stream.js
new file mode 100644
index 0000000..d43465f
--- /dev/null
+++ b/backend/node_modules/asynckit/stream.js
@@ -0,0 +1,21 @@
+var inherits              = require('util').inherits
+  , Readable              = require('stream').Readable
+  , ReadableAsyncKit      = require('./lib/readable_asynckit.js')
+  , ReadableParallel      = require('./lib/readable_parallel.js')
+  , ReadableSerial        = require('./lib/readable_serial.js')
+  , ReadableSerialOrdered = require('./lib/readable_serial_ordered.js')
+  ;
+
+// API
+module.exports =
+{
+  parallel      : ReadableParallel,
+  serial        : ReadableSerial,
+  serialOrdered : ReadableSerialOrdered, 
+};
+
+inherits(ReadableAsyncKit, Readable);
+
+inherits(ReadableParallel, ReadableAsyncKit);
+inherits(ReadableSerial, ReadableAsyncKit);
+inherits(ReadableSerialOrdered, ReadableAsyncKit);
diff --git a/backend/node_modules/axios/CHANGELOG.md b/backend/node_modules/axios/CHANGELOG.md
new file mode 100644
index 0000000..d442caa
--- /dev/null
+++ b/backend/node_modules/axios/CHANGELOG.md
@@ -0,0 +1,1072 @@
+# Changelog
+
+## [1.7.9](https://github.com/axios/axios/compare/v1.7.8...v1.7.9) (2024-12-04)
+
+
+### Reverts
+
+* Revert "fix(types): export CJS types from ESM (#6218)" (#6729) ([c44d2f2](https://github.com/axios/axios/commit/c44d2f2316ad289b38997657248ba10de11deb6c)), closes [#6218](https://github.com/axios/axios/issues/6218) [#6729](https://github.com/axios/axios/issues/6729)
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/4814473?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Jay](https://github.com/jasonsaayman "+596/-108 (#6729 )")
+
+## [1.7.8](https://github.com/axios/axios/compare/v1.7.7...v1.7.8) (2024-11-25)
+
+
+### Bug Fixes
+
+* allow passing a callback as paramsSerializer to buildURL ([#6680](https://github.com/axios/axios/issues/6680)) ([eac4619](https://github.com/axios/axios/commit/eac4619fe2e0926e876cd260ee21e3690381dbb5))
+* **core:** fixed config merging bug ([#6668](https://github.com/axios/axios/issues/6668)) ([5d99fe4](https://github.com/axios/axios/commit/5d99fe4491202a6268c71e5dcc09192359d73cea))
+* fixed width form to not shrink after 'Send Request' button is clicked ([#6644](https://github.com/axios/axios/issues/6644)) ([7ccd5fd](https://github.com/axios/axios/commit/7ccd5fd42402102d38712c32707bf055be72ab54))
+* **http:** add support for File objects as payload in http adapter ([#6588](https://github.com/axios/axios/issues/6588)) ([#6605](https://github.com/axios/axios/issues/6605)) ([6841d8d](https://github.com/axios/axios/commit/6841d8d18ddc71cc1bd202ffcfddb3f95622eef3))
+* **http:** fixed proxy-from-env module import ([#5222](https://github.com/axios/axios/issues/5222)) ([12b3295](https://github.com/axios/axios/commit/12b32957f1258aee94ef859809ed39f8f88f9dfa))
+* **http:** use `globalThis.TextEncoder` when available ([#6634](https://github.com/axios/axios/issues/6634)) ([df956d1](https://github.com/axios/axios/commit/df956d18febc9100a563298dfdf0f102c3d15410))
+* ios11 breaks when build ([#6608](https://github.com/axios/axios/issues/6608)) ([7638952](https://github.com/axios/axios/commit/763895270f7b50c7c780c3c9807ae8635de952cd))
+* **types:** add missing types for mergeConfig function ([#6590](https://github.com/axios/axios/issues/6590)) ([00de614](https://github.com/axios/axios/commit/00de614cd07b7149af335e202aef0e076c254f49))
+* **types:** export CJS types from ESM ([#6218](https://github.com/axios/axios/issues/6218)) ([c71811b](https://github.com/axios/axios/commit/c71811b00f2fcff558e4382ba913bdac4ad7200e))
+* updated stream aborted error message to be more clear ([#6615](https://github.com/axios/axios/issues/6615)) ([cc3217a](https://github.com/axios/axios/commit/cc3217a612024d83a663722a56d7a98d8759c6d5))
+* use URL API instead of DOM to fix a potential vulnerability warning; ([#6714](https://github.com/axios/axios/issues/6714)) ([0a8d6e1](https://github.com/axios/axios/commit/0a8d6e19da5b9899a2abafaaa06a75ee548597db))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/779047?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Remco Haszing](https://github.com/remcohaszing "+108/-596 (#6218 )")
+- <img src="https://avatars.githubusercontent.com/u/4814473?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Jay](https://github.com/jasonsaayman "+281/-19 (#6640 #6619 )")
+- <img src="https://avatars.githubusercontent.com/u/140250471?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Aayush Yadav](https://github.com/aayushyadav020 "+124/-111 (#6617 )")
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+12/-65 (#6714 )")
+- <img src="https://avatars.githubusercontent.com/u/479715?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Ell Bradshaw](https://github.com/cincodenada "+29/-0 (#6489 )")
+- <img src="https://avatars.githubusercontent.com/u/60218780?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Amit Saini](https://github.com/amitsainii "+13/-3 (#5237 )")
+- <img src="https://avatars.githubusercontent.com/u/19817867?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Tommaso Paulon](https://github.com/guuido "+14/-1 (#6680 )")
+- <img src="https://avatars.githubusercontent.com/u/63336443?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Akki](https://github.com/Aakash-Rana "+5/-5 (#6668 )")
+- <img src="https://avatars.githubusercontent.com/u/20028934?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Sampo Silvennoinen](https://github.com/stscoundrel "+3/-3 (#6633 )")
+- <img src="https://avatars.githubusercontent.com/u/1174718?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Kasper Isager Dalsgarð](https://github.com/kasperisager "+2/-2 (#6634 )")
+- <img src="https://avatars.githubusercontent.com/u/3709715?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Christian Clauss](https://github.com/cclauss "+4/-0 (#6683 )")
+- <img src="https://avatars.githubusercontent.com/u/1639119?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Pavan Welihinda](https://github.com/pavan168 "+2/-2 (#5222 )")
+- <img src="https://avatars.githubusercontent.com/u/5742900?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Taylor Flatt](https://github.com/taylorflatt "+2/-2 (#6615 )")
+- <img src="https://avatars.githubusercontent.com/u/79452224?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Kenzo Wada](https://github.com/Kenzo-Wada "+2/-2 (#6608 )")
+- <img src="https://avatars.githubusercontent.com/u/50064240?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Ngole Lawson](https://github.com/echelonnought "+3/-0 (#6644 )")
+- <img src="https://avatars.githubusercontent.com/u/1262198?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Haven](https://github.com/Baoyx007 "+3/-0 (#6590 )")
+- <img src="https://avatars.githubusercontent.com/u/149003676?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Shrivali Dutt](https://github.com/shrivalidutt "+1/-1 (#6637 )")
+- <img src="https://avatars.githubusercontent.com/u/1304290?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Henco Appel](https://github.com/hencoappel "+1/-1 (#6605 )")
+
+## [1.7.7](https://github.com/axios/axios/compare/v1.7.6...v1.7.7) (2024-08-31)
+
+
+### Bug Fixes
+
+* **fetch:** fix stream handling in Safari by fallback to using a stream reader instead of an async iterator; ([#6584](https://github.com/axios/axios/issues/6584)) ([d198085](https://github.com/axios/axios/commit/d1980854fee1765cd02fa0787adf5d6e34dd9dcf))
+* **http:** fixed support for IPv6 literal strings in url ([#5731](https://github.com/axios/axios/issues/5731)) ([364993f](https://github.com/axios/axios/commit/364993f0d8bc6e0e06f76b8a35d2d0a35cab054c))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/10539109?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Rishi556](https://github.com/Rishi556 "+39/-1 (#5731 )")
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+27/-7 (#6584 )")
+
+## [1.7.6](https://github.com/axios/axios/compare/v1.7.5...v1.7.6) (2024-08-30)
+
+
+### Bug Fixes
+
+* **fetch:** fix content length calculation for FormData payload; ([#6524](https://github.com/axios/axios/issues/6524)) ([085f568](https://github.com/axios/axios/commit/085f56861a83e9ac02c140ad9d68dac540dfeeaa))
+* **fetch:** optimize signals composing logic; ([#6582](https://github.com/axios/axios/issues/6582)) ([df9889b](https://github.com/axios/axios/commit/df9889b83c2cc37e9e6189675a73ab70c60f031f))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+98/-46 (#6582 )")
+- <img src="https://avatars.githubusercontent.com/u/3534453?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Jacques Germishuys](https://github.com/jacquesg "+5/-1 (#6524 )")
+- <img src="https://avatars.githubusercontent.com/u/53894505?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [kuroino721](https://github.com/kuroino721 "+3/-1 (#6575 )")
+
+## [1.7.5](https://github.com/axios/axios/compare/v1.7.4...v1.7.5) (2024-08-23)
+
+
+### Bug Fixes
+
+* **adapter:** fix undefined reference to hasBrowserEnv ([#6572](https://github.com/axios/axios/issues/6572)) ([7004707](https://github.com/axios/axios/commit/7004707c4180b416341863bd86913fe4fc2f1df1))
+* **core:** add the missed implementation of AxiosError#status property; ([#6573](https://github.com/axios/axios/issues/6573)) ([6700a8a](https://github.com/axios/axios/commit/6700a8adac06942205f6a7a21421ecb36c4e0852))
+* **core:** fix `ReferenceError: navigator is not defined` for custom environments; ([#6567](https://github.com/axios/axios/issues/6567)) ([fed1a4b](https://github.com/axios/axios/commit/fed1a4b2d78ed4a588c84e09d32749ed01dc2794))
+* **fetch:** fix credentials handling in Cloudflare workers ([#6533](https://github.com/axios/axios/issues/6533)) ([550d885](https://github.com/axios/axios/commit/550d885eb90fd156add7b93bbdc54d30d2f9a98d))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+187/-83 (#6573 #6567 #6566 #6564 #6563 #6557 #6556 #6555 #6554 #6552 )")
+- <img src="https://avatars.githubusercontent.com/u/2495809?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Antonin Bas](https://github.com/antoninbas "+6/-6 (#6572 )")
+- <img src="https://avatars.githubusercontent.com/u/5406212?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Hans Otto Wirtz](https://github.com/hansottowirtz "+4/-1 (#6533 )")
+
+## [1.7.4](https://github.com/axios/axios/compare/v1.7.3...v1.7.4) (2024-08-13)
+
+
+### Bug Fixes
+
+* **sec:** CVE-2024-39338 ([#6539](https://github.com/axios/axios/issues/6539)) ([#6543](https://github.com/axios/axios/issues/6543)) ([6b6b605](https://github.com/axios/axios/commit/6b6b605eaf73852fb2dae033f1e786155959de3a))
+* **sec:** disregard protocol-relative URL to remediate SSRF ([#6539](https://github.com/axios/axios/issues/6539)) ([07a661a](https://github.com/axios/axios/commit/07a661a2a6b9092c4aa640dcc7f724ec5e65bdda))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/31389480?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Lev Pachmanov](https://github.com/levpachmanov "+47/-11 (#6543 )")
+- <img src="https://avatars.githubusercontent.com/u/41283691?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Đỗ Trọng Hải](https://github.com/hainenber "+49/-4 (#6539 )")
+
+## [1.7.3](https://github.com/axios/axios/compare/v1.7.2...v1.7.3) (2024-08-01)
+
+
+### Bug Fixes
+
+* **adapter:** fix progress event emitting; ([#6518](https://github.com/axios/axios/issues/6518)) ([e3c76fc](https://github.com/axios/axios/commit/e3c76fc9bdd03aa4d98afaf211df943e2031453f))
+* **fetch:** fix withCredentials request config ([#6505](https://github.com/axios/axios/issues/6505)) ([85d4d0e](https://github.com/axios/axios/commit/85d4d0ea0aae91082f04e303dec46510d1b4e787))
+* **xhr:** return original config on errors from XHR adapter ([#6515](https://github.com/axios/axios/issues/6515)) ([8966ee7](https://github.com/axios/axios/commit/8966ee7ea62ecbd6cfb39a905939bcdab5cf6388))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+211/-159 (#6518 #6519 )")
+- <img src="https://avatars.githubusercontent.com/u/10867286?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Valerii Sidorenko](https://github.com/ValeraS "+3/-3 (#6515 )")
+- <img src="https://avatars.githubusercontent.com/u/8599535?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [prianYu](https://github.com/prianyu "+2/-2 (#6505 )")
+
+## [1.7.2](https://github.com/axios/axios/compare/v1.7.1...v1.7.2) (2024-05-21)
+
+
+### Bug Fixes
+
+* **fetch:** enhance fetch API detection; ([#6413](https://github.com/axios/axios/issues/6413)) ([4f79aef](https://github.com/axios/axios/commit/4f79aef81b7c4644328365bfc33acf0a9ef595bc))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+3/-3 (#6413 )")
+
+## [1.7.1](https://github.com/axios/axios/compare/v1.7.0...v1.7.1) (2024-05-20)
+
+
+### Bug Fixes
+
+* **fetch:** fixed ReferenceError issue when TextEncoder is not available in the environment; ([#6410](https://github.com/axios/axios/issues/6410)) ([733f15f](https://github.com/axios/axios/commit/733f15fe5bd2d67e1fadaee82e7913b70d45dc5e))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+14/-9 (#6410 )")
+
+# [1.7.0](https://github.com/axios/axios/compare/v1.7.0-beta.2...v1.7.0) (2024-05-19)
+
+
+### Features
+
+* **adapter:** add fetch adapter; ([#6371](https://github.com/axios/axios/issues/6371)) ([a3ff99b](https://github.com/axios/axios/commit/a3ff99b59d8ec2ab5dd049e68c043617a4072e42))
+
+### Bug Fixes
+
+* **core/axios:** handle un-writable error stack ([#6362](https://github.com/axios/axios/issues/6362)) ([81e0455](https://github.com/axios/axios/commit/81e0455b7b57fbaf2be16a73ebe0e6591cc6d8f9))  
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+1015/-127 (#6371 )")
+- <img src="https://avatars.githubusercontent.com/u/4814473?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Jay](https://github.com/jasonsaayman "+30/-14 ()")
+- <img src="https://avatars.githubusercontent.com/u/16711696?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Alexandre ABRIOUX](https://github.com/alexandre-abrioux "+56/-6 (#6362 )")
+
+# [1.7.0-beta.2](https://github.com/axios/axios/compare/v1.7.0-beta.1...v1.7.0-beta.2) (2024-05-19)
+
+
+### Bug Fixes
+
+* **fetch:** capitalize HTTP method names; ([#6395](https://github.com/axios/axios/issues/6395)) ([ad3174a](https://github.com/axios/axios/commit/ad3174a3515c3c2573f4bcb94818d582826f3914))
+* **fetch:** fix & optimize progress capturing for cases when the request data has a nullish value or zero data length ([#6400](https://github.com/axios/axios/issues/6400)) ([95a3e8e](https://github.com/axios/axios/commit/95a3e8e346cfd6a5548e171f2341df3235d0e26b))
+* **fetch:** fix headers getting from a stream response; ([#6401](https://github.com/axios/axios/issues/6401)) ([870e0a7](https://github.com/axios/axios/commit/870e0a76f60d0094774a6a63fa606eec52a381af))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+99/-46 (#6405 #6404 #6401 #6400 #6395 )")
+
+# [1.7.0-beta.1](https://github.com/axios/axios/compare/v1.7.0-beta.0...v1.7.0-beta.1) (2024-05-07)
+
+
+### Bug Fixes
+
+* **core/axios:** handle un-writable error stack ([#6362](https://github.com/axios/axios/issues/6362)) ([81e0455](https://github.com/axios/axios/commit/81e0455b7b57fbaf2be16a73ebe0e6591cc6d8f9))
+* **fetch:** fix cases when ReadableStream or Response.body are not available; ([#6377](https://github.com/axios/axios/issues/6377)) ([d1d359d](https://github.com/axios/axios/commit/d1d359da347704e8b28d768e61515a3e96c5b072))
+* **fetch:** treat fetch-related TypeError as an AxiosError.ERR_NETWORK error; ([#6380](https://github.com/axios/axios/issues/6380)) ([bb5f9a5](https://github.com/axios/axios/commit/bb5f9a5ab768452de9e166dc28d0ffc234245ef1))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/16711696?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Alexandre ABRIOUX](https://github.com/alexandre-abrioux "+56/-6 (#6362 )")
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+42/-17 (#6380 #6377 )")
+
+# [1.7.0-beta.0](https://github.com/axios/axios/compare/v1.6.8...v1.7.0-beta.0) (2024-04-28)
+
+
+### Features
+
+* **adapter:** add fetch adapter; ([#6371](https://github.com/axios/axios/issues/6371)) ([a3ff99b](https://github.com/axios/axios/commit/a3ff99b59d8ec2ab5dd049e68c043617a4072e42))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+1015/-127 (#6371 )")
+- <img src="https://avatars.githubusercontent.com/u/4814473?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Jay](https://github.com/jasonsaayman "+30/-14 ()")
+
+## [1.6.8](https://github.com/axios/axios/compare/v1.6.7...v1.6.8) (2024-03-15)
+
+
+### Bug Fixes
+
+* **AxiosHeaders:** fix AxiosHeaders conversion to an object during config merging ([#6243](https://github.com/axios/axios/issues/6243)) ([2656612](https://github.com/axios/axios/commit/2656612bc10fe2757e9832b708ed773ab340b5cb))
+* **import:** use named export for EventEmitter; ([7320430](https://github.com/axios/axios/commit/7320430aef2e1ba2b89488a0eaf42681165498b1))
+* **vulnerability:** update follow-redirects to 1.15.6 ([#6300](https://github.com/axios/axios/issues/6300)) ([8786e0f](https://github.com/axios/axios/commit/8786e0ff55a8c68d4ca989801ad26df924042e27))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/4814473?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Jay](https://github.com/jasonsaayman "+4572/-3446 (#6238 )")
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+30/-0 (#6231 )")
+- <img src="https://avatars.githubusercontent.com/u/68230846?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Mitchell](https://github.com/Creaous "+9/-9 (#6300 )")
+- <img src="https://avatars.githubusercontent.com/u/53797821?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Emmanuel](https://github.com/mannoeu "+2/-2 (#6196 )")
+- <img src="https://avatars.githubusercontent.com/u/44109284?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Lucas Keller](https://github.com/ljkeller "+3/-0 (#6194 )")
+- <img src="https://avatars.githubusercontent.com/u/72791488?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Aditya Mogili](https://github.com/ADITYA-176 "+1/-1 ()")
+- <img src="https://avatars.githubusercontent.com/u/46135319?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Miroslav Petrov](https://github.com/petrovmiroslav "+1/-1 (#6243 )")
+
+## [1.6.7](https://github.com/axios/axios/compare/v1.6.6...v1.6.7) (2024-01-25)
+
+
+### Bug Fixes
+
+* capture async stack only for rejections with native error objects; ([#6203](https://github.com/axios/axios/issues/6203)) ([1a08f90](https://github.com/axios/axios/commit/1a08f90f402336e4d00e9ee82f211c6adb1640b0))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+30/-26 (#6203 )")
+- <img src="https://avatars.githubusercontent.com/u/73059627?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [zhoulixiang](https://github.com/zh-lx "+0/-3 (#6186 )")
+
+## [1.6.6](https://github.com/axios/axios/compare/v1.6.5...v1.6.6) (2024-01-24)
+
+
+### Bug Fixes
+
+* fixed missed dispatchBeforeRedirect argument ([#5778](https://github.com/axios/axios/issues/5778)) ([a1938ff](https://github.com/axios/axios/commit/a1938ff073fcb0f89011f001dfbc1fa1dc995e39))
+* wrap errors to improve async stack trace ([#5987](https://github.com/axios/axios/issues/5987)) ([123f354](https://github.com/axios/axios/commit/123f354b920f154a209ea99f76b7b2ef3d9ebbab))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/1186084?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Ilya Priven](https://github.com/ikonst "+91/-8 (#5987 )")
+- <img src="https://avatars.githubusercontent.com/u/1884246?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Zao Soula](https://github.com/zaosoula "+6/-6 (#5778 )")
+
+## [1.6.5](https://github.com/axios/axios/compare/v1.6.4...v1.6.5) (2024-01-05)
+
+
+### Bug Fixes
+
+* **ci:** refactor notify action as a job of publish action; ([#6176](https://github.com/axios/axios/issues/6176)) ([0736f95](https://github.com/axios/axios/commit/0736f95ce8776366dc9ca569f49ba505feb6373c))
+* **dns:** fixed lookup error handling; ([#6175](https://github.com/axios/axios/issues/6175)) ([f4f2b03](https://github.com/axios/axios/commit/f4f2b039dd38eb4829e8583caede4ed6d2dd59be))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+41/-6 (#6176 #6175 )")
+- <img src="https://avatars.githubusercontent.com/u/4814473?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Jay](https://github.com/jasonsaayman "+6/-1 ()")
+
+## [1.6.4](https://github.com/axios/axios/compare/v1.6.3...v1.6.4) (2024-01-03)
+
+
+### Bug Fixes
+
+* **security:** fixed formToJSON prototype pollution vulnerability; ([#6167](https://github.com/axios/axios/issues/6167)) ([3c0c11c](https://github.com/axios/axios/commit/3c0c11cade045c4412c242b5727308cff9897a0e))
+* **security:** fixed security vulnerability in follow-redirects ([#6163](https://github.com/axios/axios/issues/6163)) ([75af1cd](https://github.com/axios/axios/commit/75af1cdff5b3a6ca3766d3d3afbc3115bb0811b8))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/4814473?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Jay](https://github.com/jasonsaayman "+34/-6 ()")
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+34/-3 (#6172 #6167 )")
+- <img src="https://avatars.githubusercontent.com/u/1402060?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Guy Nesher](https://github.com/gnesher "+10/-10 (#6163 )")
+
+## [1.6.3](https://github.com/axios/axios/compare/v1.6.2...v1.6.3) (2023-12-26)
+
+
+### Bug Fixes
+
+* Regular Expression Denial of Service (ReDoS) ([#6132](https://github.com/axios/axios/issues/6132)) ([5e7ad38](https://github.com/axios/axios/commit/5e7ad38fb0f819fceb19fb2ee5d5d38f56aa837d))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/4814473?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Jay](https://github.com/jasonsaayman "+15/-6 (#6145 )")
+- <img src="https://avatars.githubusercontent.com/u/22686401?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Willian Agostini](https://github.com/WillianAgostini "+17/-2 (#6132 )")
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+3/-0 (#6084 )")
+
+## [1.6.2](https://github.com/axios/axios/compare/v1.6.1...v1.6.2) (2023-11-14)
+
+
+### Features
+
+* **withXSRFToken:** added withXSRFToken option as a workaround to achieve the old `withCredentials` behavior; ([#6046](https://github.com/axios/axios/issues/6046)) ([cff9967](https://github.com/axios/axios/commit/cff996779b272a5e94c2b52f5503ccf668bc42dc))
+
+### PRs
+- feat(withXSRFToken): added withXSRFToken option as a workaround to achieve the old &#x60;withCredentials&#x60; behavior; ( [#6046](https://api.github.com/repos/axios/axios/pulls/6046) )
+```
+
+📢 This PR added &#x27;withXSRFToken&#x27; option as a replacement for old withCredentials behaviour. 
+You should now use withXSRFToken along with withCredential to get the old behavior.
+This functionality is considered as a fix.
+```
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+271/-146 (#6081 #6080 #6079 #6078 #6046 #6064 #6063 )")
+- <img src="https://avatars.githubusercontent.com/u/79681367?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Ng Choon Khon (CK)](https://github.com/ckng0221 "+4/-4 (#6073 )")
+- <img src="https://avatars.githubusercontent.com/u/9162827?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Muhammad Noman](https://github.com/mnomanmemon "+2/-2 (#6048 )")
+
+## [1.6.1](https://github.com/axios/axios/compare/v1.6.0...v1.6.1) (2023-11-08)
+
+
+### Bug Fixes
+
+* **formdata:** fixed content-type header normalization for non-standard browser environments; ([#6056](https://github.com/axios/axios/issues/6056)) ([dd465ab](https://github.com/axios/axios/commit/dd465ab22bbfa262c6567be6574bf46a057d5288))
+* **platform:** fixed emulated browser detection in node.js environment; ([#6055](https://github.com/axios/axios/issues/6055)) ([3dc8369](https://github.com/axios/axios/commit/3dc8369e505e32a4e12c22f154c55fd63ac67fbb))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+432/-65 (#6059 #6056 #6055 )")
+- <img src="https://avatars.githubusercontent.com/u/3982806?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Fabian Meyer](https://github.com/meyfa "+5/-2 (#5835 )")
+
+### PRs
+- feat(withXSRFToken): added withXSRFToken option as a workaround to achieve the old &#x60;withCredentials&#x60; behavior; ( [#6046](https://api.github.com/repos/axios/axios/pulls/6046) )
+```
+
+📢 This PR added &#x27;withXSRFToken&#x27; option as a replacement for old withCredentials behaviour. 
+You should now use withXSRFToken along with withCredential to get the old behavior.
+This functionality is considered as a fix.
+```
+
+# [1.6.0](https://github.com/axios/axios/compare/v1.5.1...v1.6.0) (2023-10-26)
+
+
+### Bug Fixes
+
+* **CSRF:** fixed CSRF vulnerability CVE-2023-45857 ([#6028](https://github.com/axios/axios/issues/6028)) ([96ee232](https://github.com/axios/axios/commit/96ee232bd3ee4de2e657333d4d2191cd389e14d0))
+* **dns:** fixed lookup function decorator to work properly in node v20; ([#6011](https://github.com/axios/axios/issues/6011)) ([5aaff53](https://github.com/axios/axios/commit/5aaff532a6b820bb9ab6a8cd0f77131b47e2adb8))
+* **types:** fix AxiosHeaders types; ([#5931](https://github.com/axios/axios/issues/5931)) ([a1c8ad0](https://github.com/axios/axios/commit/a1c8ad008b3c13d53e135bbd0862587fb9d3fc09))
+
+### PRs
+- CVE 2023 45857 ( [#6028](https://api.github.com/repos/axios/axios/pulls/6028) )
+```
+
+⚠️ Critical vulnerability fix. See https://security.snyk.io/vuln/SNYK-JS-AXIOS-6032459
+```
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+449/-114 (#6032 #6021 #6011 #5932 #5931 )")
+- <img src="https://avatars.githubusercontent.com/u/63700910?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Valentin Panov](https://github.com/valentin-panov "+4/-4 (#6028 )")
+- <img src="https://avatars.githubusercontent.com/u/76877078?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Rinku Chaudhari](https://github.com/therealrinku "+1/-1 (#5889 )")
+
+## [1.5.1](https://github.com/axios/axios/compare/v1.5.0...v1.5.1) (2023-09-26)
+
+
+### Bug Fixes
+
+* **adapters:** improved adapters loading logic to have clear error messages; ([#5919](https://github.com/axios/axios/issues/5919)) ([e410779](https://github.com/axios/axios/commit/e4107797a7a1376f6209fbecfbbce73d3faa7859))
+* **formdata:** fixed automatic addition of the `Content-Type` header for FormData in non-browser environments; ([#5917](https://github.com/axios/axios/issues/5917)) ([bc9af51](https://github.com/axios/axios/commit/bc9af51b1886d1b3529617702f2a21a6c0ed5d92))
+* **headers:** allow `content-encoding` header to handle case-insensitive values ([#5890](https://github.com/axios/axios/issues/5890)) ([#5892](https://github.com/axios/axios/issues/5892)) ([4c89f25](https://github.com/axios/axios/commit/4c89f25196525e90a6e75eda9cb31ae0a2e18acd))
+* **types:** removed duplicated code ([9e62056](https://github.com/axios/axios/commit/9e6205630e1c9cf863adf141c0edb9e6d8d4b149))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+89/-18 (#5919 #5917 )")
+- <img src="https://avatars.githubusercontent.com/u/110460234?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [David Dallas](https://github.com/DavidJDallas "+11/-5 ()")
+- <img src="https://avatars.githubusercontent.com/u/71556073?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Sean Sattler](https://github.com/fb-sean "+2/-8 ()")
+- <img src="https://avatars.githubusercontent.com/u/4294069?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Mustafa Ateş Uzun](https://github.com/0o001 "+4/-4 ()")
+- <img src="https://avatars.githubusercontent.com/u/132928043?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Przemyslaw Motacki](https://github.com/sfc-gh-pmotacki "+2/-1 (#5892 )")
+- <img src="https://avatars.githubusercontent.com/u/5492927?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Michael Di Prisco](https://github.com/Cadienvan "+1/-1 ()")
+
+### PRs
+- CVE 2023 45857 ( [#6028](https://api.github.com/repos/axios/axios/pulls/6028) )
+```
+
+⚠️ Critical vulnerability fix. See https://security.snyk.io/vuln/SNYK-JS-AXIOS-6032459
+```
+
+# [1.5.0](https://github.com/axios/axios/compare/v1.4.0...v1.5.0) (2023-08-26)
+
+
+### Bug Fixes
+
+* **adapter:** make adapter loading error more clear by using platform-specific adapters explicitly ([#5837](https://github.com/axios/axios/issues/5837)) ([9a414bb](https://github.com/axios/axios/commit/9a414bb6c81796a95c6c7fe668637825458e8b6d))
+* **dns:** fixed `cacheable-lookup` integration; ([#5836](https://github.com/axios/axios/issues/5836)) ([b3e327d](https://github.com/axios/axios/commit/b3e327dcc9277bdce34c7ef57beedf644b00d628))
+* **headers:** added support for setting header names that overlap with class methods; ([#5831](https://github.com/axios/axios/issues/5831)) ([d8b4ca0](https://github.com/axios/axios/commit/d8b4ca0ea5f2f05efa4edfe1e7684593f9f68273))
+* **headers:** fixed common Content-Type header merging; ([#5832](https://github.com/axios/axios/issues/5832)) ([8fda276](https://github.com/axios/axios/commit/8fda2766b1e6bcb72c3fabc146223083ef13ce17))
+
+
+### Features
+
+* export getAdapter function ([#5324](https://github.com/axios/axios/issues/5324)) ([ca73eb8](https://github.com/axios/axios/commit/ca73eb878df0ae2dace81fe3a7f1fb5986231bf1))
+* **export:** export adapters without `unsafe` prefix ([#5839](https://github.com/axios/axios/issues/5839)) ([1601f4a](https://github.com/axios/axios/commit/1601f4a27a81ab47fea228f1e244b2c4e3ce28bf))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+66/-29 (#5839 #5837 #5836 #5832 #5831 )")
+- <img src="https://avatars.githubusercontent.com/u/102841186?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [夜葬](https://github.com/geekact "+42/-0 (#5324 )")
+- <img src="https://avatars.githubusercontent.com/u/65978976?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Jonathan Budiman](https://github.com/JBudiman00 "+30/-0 (#5788 )")
+- <img src="https://avatars.githubusercontent.com/u/5492927?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Michael Di Prisco](https://github.com/Cadienvan "+3/-5 (#5791 )")
+
+### PRs
+- CVE 2023 45857 ( [#6028](https://api.github.com/repos/axios/axios/pulls/6028) )
+```
+
+⚠️ Critical vulnerability fix. See https://security.snyk.io/vuln/SNYK-JS-AXIOS-6032459
+```
+
+# [1.4.0](https://github.com/axios/axios/compare/v1.3.6...v1.4.0) (2023-04-27)
+
+
+### Bug Fixes
+
+* **formdata:** add `multipart/form-data` content type for FormData payload on custom client environments; ([#5678](https://github.com/axios/axios/issues/5678)) ([bbb61e7](https://github.com/axios/axios/commit/bbb61e70cb1185adfb1cbbb86eaf6652c48d89d1))
+* **package:** export package internals with unsafe path prefix; ([#5677](https://github.com/axios/axios/issues/5677)) ([df38c94](https://github.com/axios/axios/commit/df38c949f26414d88ba29ec1e353c4d4f97eaf09))
+
+
+### Features
+
+* **dns:** added support for a custom lookup function; ([#5339](https://github.com/axios/axios/issues/5339)) ([2701911](https://github.com/axios/axios/commit/2701911260a1faa5cc5e1afe437121b330a3b7bb))
+* **types:** export `AxiosHeaderValue` type. ([#5525](https://github.com/axios/axios/issues/5525)) ([726f1c8](https://github.com/axios/axios/commit/726f1c8e00cffa0461a8813a9bdcb8f8b9d762cf))
+
+
+### Performance Improvements
+
+* **merge-config:** optimize mergeConfig performance by avoiding duplicate key visits; ([#5679](https://github.com/axios/axios/issues/5679)) ([e6f7053](https://github.com/axios/axios/commit/e6f7053bf1a3e87cf1f9da8677e12e3fe829d68e))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+151/-16 (#5684 #5339 #5679 #5678 #5677 )")
+- <img src="https://avatars.githubusercontent.com/u/47537704?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Arthur Fiorette](https://github.com/arthurfiorette "+19/-19 (#5525 )")
+- <img src="https://avatars.githubusercontent.com/u/43876655?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [PIYUSH NEGI](https://github.com/npiyush97 "+2/-18 (#5670 )")
+
+### PRs
+- CVE 2023 45857 ( [#6028](https://api.github.com/repos/axios/axios/pulls/6028) )
+```
+
+⚠️ Critical vulnerability fix. See https://security.snyk.io/vuln/SNYK-JS-AXIOS-6032459
+```
+
+## [1.3.6](https://github.com/axios/axios/compare/v1.3.5...v1.3.6) (2023-04-19)
+
+
+### Bug Fixes
+
+* **types:** added transport to RawAxiosRequestConfig ([#5445](https://github.com/axios/axios/issues/5445)) ([6f360a2](https://github.com/axios/axios/commit/6f360a2531d8d70363fd9becef6a45a323f170e2))
+* **utils:** make isFormData detection logic stricter to avoid unnecessary calling of the `toString` method on the target; ([#5661](https://github.com/axios/axios/issues/5661)) ([aa372f7](https://github.com/axios/axios/commit/aa372f7306295dfd1100c1c2c77ce95c95808e76))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+48/-10 (#5665 #5661 #5663 )")
+- <img src="https://avatars.githubusercontent.com/u/5492927?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Michael Di Prisco](https://github.com/Cadienvan "+2/-0 (#5445 )")
+
+### PRs
+- CVE 2023 45857 ( [#6028](https://api.github.com/repos/axios/axios/pulls/6028) )
+```
+
+⚠️ Critical vulnerability fix. See https://security.snyk.io/vuln/SNYK-JS-AXIOS-6032459
+```
+
+## [1.3.5](https://github.com/axios/axios/compare/v1.3.4...v1.3.5) (2023-04-05)
+
+
+### Bug Fixes
+
+* **headers:** fixed isValidHeaderName to support full list of allowed characters; ([#5584](https://github.com/axios/axios/issues/5584)) ([e7decef](https://github.com/axios/axios/commit/e7decef6a99f4627e27ed9ea5b00ce8e201c3841))
+* **params:** re-added the ability to set the function as `paramsSerializer` config; ([#5633](https://github.com/axios/axios/issues/5633)) ([a56c866](https://github.com/axios/axios/commit/a56c8661209d5ce5a645a05f294a0e08a6c1f6b3))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+28/-10 (#5633 #5584 )")
+
+### PRs
+- CVE 2023 45857 ( [#6028](https://api.github.com/repos/axios/axios/pulls/6028) )
+```
+
+⚠️ Critical vulnerability fix. See https://security.snyk.io/vuln/SNYK-JS-AXIOS-6032459
+```
+
+## [1.3.4](https://github.com/axios/axios/compare/v1.3.3...v1.3.4) (2023-02-22)
+
+
+### Bug Fixes
+
+* **blob:** added a check to make sure the Blob class is available in the browser's global scope; ([#5548](https://github.com/axios/axios/issues/5548)) ([3772c8f](https://github.com/axios/axios/commit/3772c8fe74112a56e3e9551f894d899bc3a9443a))
+* **http:** fixed regression bug when handling synchronous errors inside the adapter; ([#5564](https://github.com/axios/axios/issues/5564)) ([a3b246c](https://github.com/axios/axios/commit/a3b246c9de5c3bc4b5a742e15add55b375479451))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+38/-26 (#5564 )")
+- <img src="https://avatars.githubusercontent.com/u/19550000?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [lcysgsg](https://github.com/lcysgsg "+4/-0 (#5548 )")
+- <img src="https://avatars.githubusercontent.com/u/5492927?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Michael Di Prisco](https://github.com/Cadienvan "+3/-0 (#5444 )")
+
+### PRs
+- CVE 2023 45857 ( [#6028](https://api.github.com/repos/axios/axios/pulls/6028) )
+```
+
+⚠️ Critical vulnerability fix. See https://security.snyk.io/vuln/SNYK-JS-AXIOS-6032459
+```
+
+## [1.3.3](https://github.com/axios/axios/compare/v1.3.2...v1.3.3) (2023-02-13)
+
+
+### Bug Fixes
+
+* **formdata:** added a check to make sure the FormData class is available in the browser's global scope; ([#5545](https://github.com/axios/axios/issues/5545)) ([a6dfa72](https://github.com/axios/axios/commit/a6dfa72010db5ad52db8bd13c0f98e537e8fd05d))
+* **formdata:** fixed setting NaN as Content-Length for form payload in some cases; ([#5535](https://github.com/axios/axios/issues/5535)) ([c19f7bf](https://github.com/axios/axios/commit/c19f7bf770f90ae8307f4ea3104f227056912da1))
+* **headers:** fixed the filtering logic of the clear method; ([#5542](https://github.com/axios/axios/issues/5542)) ([ea87ebf](https://github.com/axios/axios/commit/ea87ebfe6d1699af072b9e7cd40faf8f14b0ab93))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+11/-7 (#5545 #5535 #5542 )")
+- <img src="https://avatars.githubusercontent.com/u/19842213?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [陈若枫](https://github.com/ruofee "+2/-2 (#5467 )")
+
+### PRs
+- CVE 2023 45857 ( [#6028](https://api.github.com/repos/axios/axios/pulls/6028) )
+```
+
+⚠️ Critical vulnerability fix. See https://security.snyk.io/vuln/SNYK-JS-AXIOS-6032459
+```
+
+## [1.3.2](https://github.com/axios/axios/compare/v1.3.1...v1.3.2) (2023-02-03)
+
+
+### Bug Fixes
+
+* **http:** treat http://localhost as base URL for relative paths to avoid `ERR_INVALID_URL` error; ([#5528](https://github.com/axios/axios/issues/5528)) ([128d56f](https://github.com/axios/axios/commit/128d56f4a0fb8f5f2ed6e0dd80bc9225fee9538c))
+* **http:** use explicit import instead of TextEncoder global; ([#5530](https://github.com/axios/axios/issues/5530)) ([6b3c305](https://github.com/axios/axios/commit/6b3c305fc40c56428e0afabedc6f4d29c2830f6f))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+2/-1 (#5530 #5528 )")
+
+### PRs
+- CVE 2023 45857 ( [#6028](https://api.github.com/repos/axios/axios/pulls/6028) )
+```
+
+⚠️ Critical vulnerability fix. See https://security.snyk.io/vuln/SNYK-JS-AXIOS-6032459
+```
+
+## [1.3.1](https://github.com/axios/axios/compare/v1.3.0...v1.3.1) (2023-02-01)
+
+
+### Bug Fixes
+
+* **formdata:** add hotfix to use the asynchronous API to compute the content-length header value; ([#5521](https://github.com/axios/axios/issues/5521)) ([96d336f](https://github.com/axios/axios/commit/96d336f527619f21da012fe1f117eeb53e5a2120))
+* **serializer:** fixed serialization of array-like objects; ([#5518](https://github.com/axios/axios/issues/5518)) ([08104c0](https://github.com/axios/axios/commit/08104c028c0f9353897b1b6691d74c440fd0c32d))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+27/-8 (#5521 #5518 )")
+
+### PRs
+- CVE 2023 45857 ( [#6028](https://api.github.com/repos/axios/axios/pulls/6028) )
+```
+
+⚠️ Critical vulnerability fix. See https://security.snyk.io/vuln/SNYK-JS-AXIOS-6032459
+```
+
+# [1.3.0](https://github.com/axios/axios/compare/v1.2.6...v1.3.0) (2023-01-31)
+
+
+### Bug Fixes
+
+* **headers:** fixed & optimized clear method; ([#5507](https://github.com/axios/axios/issues/5507)) ([9915635](https://github.com/axios/axios/commit/9915635c69d0ab70daca5738488421f67ca60959))
+* **http:** add zlib headers if missing ([#5497](https://github.com/axios/axios/issues/5497)) ([65e8d1e](https://github.com/axios/axios/commit/65e8d1e28ce829f47a837e45129730e541950d3c))
+
+
+### Features
+
+* **fomdata:** added support for spec-compliant FormData & Blob types; ([#5316](https://github.com/axios/axios/issues/5316)) ([6ac574e](https://github.com/axios/axios/commit/6ac574e00a06731288347acea1e8246091196953))
+
+### Contributors to this release
+
+- <img src="https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+352/-67 (#5514 #5512 #5510 #5509 #5508 #5316 #5507 )")
+- <img src="https://avatars.githubusercontent.com/u/35015993?v&#x3D;4&amp;s&#x3D;18" alt="avatar" width="18"/> [ItsNotGoodName](https://github.com/ItsNotGoodName "+43/-2 (#5497 )")
+
+### PRs
+- CVE 2023 45857 ( [#6028](https://api.github.com/repos/axios/axios/pulls/6028) )
+```
+
+⚠️ Critical vulnerability fix. See https://security.snyk.io/vuln/SNYK-JS-AXIOS-6032459
+```
+
+## [1.2.6](https://github.com/axios/axios/compare/v1.2.5...v1.2.6) (2023-01-28)
+
+
+### Bug Fixes
+
+* **headers:** added missed Authorization accessor; ([#5502](https://github.com/axios/axios/issues/5502)) ([342c0ba](https://github.com/axios/axios/commit/342c0ba9a16ea50f5ed7d2366c5c1a2c877e3f26))
+* **types:** fixed `CommonRequestHeadersList` & `CommonResponseHeadersList` types to be private in commonJS; ([#5503](https://github.com/axios/axios/issues/5503)) ([5a3d0a3](https://github.com/axios/axios/commit/5a3d0a3234d77361a1bc7cedee2da1e11df08e2c))
+
+### Contributors to this release
+
+- ![avatar](https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;16) [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+24/-9 (#5503 #5502 )")
+
+### PRs
+- CVE 2023 45857 ( [#6028](https://api.github.com/repos/axios/axios/pulls/6028) )
+```
+
+⚠️ Critical vulnerability fix. See https://security.snyk.io/vuln/SNYK-JS-AXIOS-6032459
+```
+
+## [1.2.5](https://github.com/axios/axios/compare/v1.2.4...v1.2.5) (2023-01-26)
+
+
+### Bug Fixes
+
+* **types:** fixed AxiosHeaders to handle spread syntax by making all methods non-enumerable; ([#5499](https://github.com/axios/axios/issues/5499)) ([580f1e8](https://github.com/axios/axios/commit/580f1e8033a61baa38149d59fd16019de3932c22))
+
+### Contributors to this release
+
+- ![avatar](https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;16) [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+82/-54 (#5499 )")
+- ![avatar](https://avatars.githubusercontent.com/u/20516159?v&#x3D;4&amp;s&#x3D;16) [Elliot Ford](https://github.com/EFord36 "+1/-1 (#5462 )")
+
+### PRs
+- CVE 2023 45857 ( [#6028](https://api.github.com/repos/axios/axios/pulls/6028) )
+```
+
+⚠️ Critical vulnerability fix. See https://security.snyk.io/vuln/SNYK-JS-AXIOS-6032459
+```
+
+## [1.2.4](https://github.com/axios/axios/compare/v1.2.3...v1.2.4) (2023-01-22)
+
+
+### Bug Fixes
+
+* **types:** renamed `RawAxiosRequestConfig` back to `AxiosRequestConfig`; ([#5486](https://github.com/axios/axios/issues/5486)) ([2a71f49](https://github.com/axios/axios/commit/2a71f49bc6c68495fa419003a3107ed8bd703ad0))
+* **types:** fix `AxiosRequestConfig` generic; ([#5478](https://github.com/axios/axios/issues/5478)) ([9bce81b](https://github.com/axios/axios/commit/186ea062da8b7d578ae78b1a5c220986b9bce81b))
+
+### Contributors to this release
+
+- ![avatar](https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;16) [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+242/-108 (#5486 #5482 )")
+- ![avatar](https://avatars.githubusercontent.com/u/9430821?v&#x3D;4&amp;s&#x3D;16) [Daniel Hillmann](https://github.com/hilleer "+1/-1 (#5478 )")
+
+### PRs
+- CVE 2023 45857 ( [#6028](https://api.github.com/repos/axios/axios/pulls/6028) )
+```
+
+⚠️ Critical vulnerability fix. See https://security.snyk.io/vuln/SNYK-JS-AXIOS-6032459
+```
+
+## [1.2.3](https://github.com/axios/axios/compare/1.2.2...1.2.3) (2023-01-10)
+
+
+### Bug Fixes
+
+* **types:** fixed AxiosRequestConfig header interface by refactoring it to RawAxiosRequestConfig; ([#5420](https://github.com/axios/axios/issues/5420)) ([0811963](https://github.com/axios/axios/commit/08119634a22f1d5b19f5c9ea0adccb6d3eebc3bc))
+
+### Contributors to this release
+
+- ![avatar](https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;16) [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS "+938/-442 (#5456 #5455 #5453 #5451 #5449 #5447 #5446 #5443 #5442 #5439 #5420 )")
+
+### PRs
+- CVE 2023 45857 ( [#6028](https://api.github.com/repos/axios/axios/pulls/6028) )
+```
+
+⚠️ Critical vulnerability fix. See https://security.snyk.io/vuln/SNYK-JS-AXIOS-6032459
+```
+
+## [1.2.2] - 2022-12-29
+
+### Fixed
+- fix(ci): fix release script inputs [#5392](https://github.com/axios/axios/pull/5392)
+- fix(ci): prerelease scipts [#5377](https://github.com/axios/axios/pull/5377)
+- fix(ci): release scripts [#5376](https://github.com/axios/axios/pull/5376)
+- fix(ci): typescript tests [#5375](https://github.com/axios/axios/pull/5375)
+- fix: Brotli decompression [#5353](https://github.com/axios/axios/pull/5353)
+- fix: add missing HttpStatusCode [#5345](https://github.com/axios/axios/pull/5345)
+
+### Chores
+- chore(ci): set conventional-changelog header config [#5406](https://github.com/axios/axios/pull/5406)
+- chore(ci): fix automatic contributors resolving [#5403](https://github.com/axios/axios/pull/5403)
+- chore(ci): improved logging for the contributors list generator [#5398](https://github.com/axios/axios/pull/5398)
+- chore(ci): fix release action [#5397](https://github.com/axios/axios/pull/5397)
+- chore(ci): fix version bump script by adding bump argument for target version [#5393](https://github.com/axios/axios/pull/5393)
+- chore(deps): bump decode-uri-component from 0.2.0 to 0.2.2 [#5342](https://github.com/axios/axios/pull/5342)
+- chore(ci): GitHub Actions Release script [#5384](https://github.com/axios/axios/pull/5384)
+- chore(ci): release scripts [#5364](https://github.com/axios/axios/pull/5364)
+
+### Contributors to this release
+- ![avatar](https://avatars.githubusercontent.com/u/12586868?v&#x3D;4&amp;s&#x3D;16) [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS)
+- ![avatar](https://avatars.githubusercontent.com/u/1652293?v&#x3D;4&amp;s&#x3D;16) [Winnie](https://github.com/winniehell)
+
+## [1.2.1] - 2022-12-05
+
+### Changed
+- feat(exports): export mergeConfig [#5151](https://github.com/axios/axios/pull/5151)
+
+### Fixed
+- fix(CancelledError): include config [#4922](https://github.com/axios/axios/pull/4922)
+- fix(general): removing multiple/trailing/leading whitespace [#5022](https://github.com/axios/axios/pull/5022)
+- fix(headers): decompression for responses without Content-Length header [#5306](https://github.com/axios/axios/pull/5306)
+- fix(webWorker): exception to sending form data in web worker [#5139](https://github.com/axios/axios/pull/5139)
+
+### Refactors
+- refactor(types): AxiosProgressEvent.event type to any [#5308](https://github.com/axios/axios/pull/5308)
+- refactor(types): add missing types for static AxiosError.from method [#4956](https://github.com/axios/axios/pull/4956)
+
+### Chores
+- chore(docs): remove README link to non-existent upgrade guide [#5307](https://github.com/axios/axios/pull/5307)
+- chore(docs): typo in issue template name [#5159](https://github.com/axios/axios/pull/5159)
+
+### Contributors to this release
+
+- [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS)
+- [Zachary Lysobey](https://github.com/zachlysobey)
+- [Kevin Ennis](https://github.com/kevincennis)
+- [Philipp Loose](https://github.com/phloose)
+- [secondl1ght](https://github.com/secondl1ght)
+- [wenzheng](https://github.com/0x30)
+- [Ivan Barsukov](https://github.com/ovarn)
+- [Arthur Fiorette](https://github.com/arthurfiorette)
+
+### PRs
+- CVE 2023 45857 ( [#6028](https://api.github.com/repos/axios/axios/pulls/6028) )
+```
+
+⚠️ Critical vulnerability fix. See https://security.snyk.io/vuln/SNYK-JS-AXIOS-6032459
+```
+
+## [1.2.0] - 2022-11-10
+
+### Changed
+
+- changed: refactored module exports [#5162](https://github.com/axios/axios/pull/5162)
+- change: re-added support for loading Axios with require('axios').default [#5225](https://github.com/axios/axios/pull/5225)
+
+### Fixed
+
+- fix: improve AxiosHeaders class [#5224](https://github.com/axios/axios/pull/5224)
+- fix: TypeScript type definitions for commonjs [#5196](https://github.com/axios/axios/pull/5196)
+- fix: type definition of use method on AxiosInterceptorManager to match the the README [#5071](https://github.com/axios/axios/pull/5071)
+- fix: __dirname is not defined in the sandbox [#5269](https://github.com/axios/axios/pull/5269)
+- fix: AxiosError.toJSON method to avoid circular references [#5247](https://github.com/axios/axios/pull/5247)
+- fix: Z_BUF_ERROR when content-encoding is set but the response body is empty [#5250](https://github.com/axios/axios/pull/5250)
+
+### Refactors
+- refactor: allowing adapters to be loaded by name [#5277](https://github.com/axios/axios/pull/5277)
+
+### Chores
+
+- chore: force CI restart [#5243](https://github.com/axios/axios/pull/5243)
+- chore: update ECOSYSTEM.md [#5077](https://github.com/axios/axios/pull/5077)
+- chore: update get/index.html [#5116](https://github.com/axios/axios/pull/5116)
+- chore: update Sandbox UI/UX [#5205](https://github.com/axios/axios/pull/5205)
+- chore:(actions): remove git credentials after checkout [#5235](https://github.com/axios/axios/pull/5235)
+- chore(actions): bump actions/dependency-review-action from 2 to 3 [#5266](https://github.com/axios/axios/pull/5266)
+- chore(packages): bump loader-utils from 1.4.1 to 1.4.2 [#5295](https://github.com/axios/axios/pull/5295)
+- chore(packages): bump engine.io from 6.2.0 to 6.2.1 [#5294](https://github.com/axios/axios/pull/5294)
+- chore(packages): bump socket.io-parser from 4.0.4 to 4.0.5 [#5241](https://github.com/axios/axios/pull/5241)
+- chore(packages): bump loader-utils from 1.4.0 to 1.4.1 [#5245](https://github.com/axios/axios/pull/5245)
+- chore(docs): update Resources links in README [#5119](https://github.com/axios/axios/pull/5119)
+- chore(docs): update the link for JSON url [#5265](https://github.com/axios/axios/pull/5265)
+- chore(docs): fix broken links [#5218](https://github.com/axios/axios/pull/5218)
+- chore(docs): update and rename UPGRADE_GUIDE.md to MIGRATION_GUIDE.md [#5170](https://github.com/axios/axios/pull/5170)
+- chore(docs): typo fix line #856 and #920 [#5194](https://github.com/axios/axios/pull/5194)
+- chore(docs): typo fix #800 [#5193](https://github.com/axios/axios/pull/5193)
+- chore(docs): fix typos [#5184](https://github.com/axios/axios/pull/5184)
+- chore(docs): fix punctuation in README.md [#5197](https://github.com/axios/axios/pull/5197)
+- chore(docs): update readme in the Handling Errors section - issue reference #5260 [#5261](https://github.com/axios/axios/pull/5261)
+- chore: remove \b from filename [#5207](https://github.com/axios/axios/pull/5207)
+- chore(docs): update CHANGELOG.md [#5137](https://github.com/axios/axios/pull/5137)
+- chore: add sideEffects false to package.json [#5025](https://github.com/axios/axios/pull/5025)
+
+### Contributors to this release
+
+- [Maddy Miller](https://github.com/me4502)
+- [Amit Saini](https://github.com/amitsainii)
+- [ecyrbe](https://github.com/ecyrbe)
+- [Ikko Ashimine](https://github.com/eltociear)
+- [Geeth Gunnampalli](https://github.com/thetechie7)
+- [Shreem Asati](https://github.com/shreem-123)
+- [Frieder Bluemle](https://github.com/friederbluemle)
+- [윤세영](https://github.com/yunseyeong)
+- [Claudio Busatto](https://github.com/cjcbusatto)
+- [Remco Haszing](https://github.com/remcohaszing)
+- [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS)
+- [Csaba Maulis](https://github.com/om4csaba)
+- [MoPaMo](https://github.com/MoPaMo)
+- [Daniel Fjeldstad](https://github.com/w3bdesign)
+- [Adrien Brunet](https://github.com/adrien-may)
+- [Frazer Smith](https://github.com/Fdawgs)
+- [HaiTao](https://github.com/836334258)
+- [AZM](https://github.com/aziyatali)
+- [relbns](https://github.com/relbns)
+
+### PRs
+- CVE 2023 45857 ( [#6028](https://api.github.com/repos/axios/axios/pulls/6028) )
+```
+
+⚠️ Critical vulnerability fix. See https://security.snyk.io/vuln/SNYK-JS-AXIOS-6032459
+```
+
+## [1.1.3] - 2022-10-15
+
+### Added
+
+- Added custom params serializer support [#5113](https://github.com/axios/axios/pull/5113)
+
+### Fixed
+
+- Fixed top-level export to keep them in-line with static properties [#5109](https://github.com/axios/axios/pull/5109)
+- Stopped including null values to query string. [#5108](https://github.com/axios/axios/pull/5108)
+- Restored proxy config backwards compatibility with 0.x [#5097](https://github.com/axios/axios/pull/5097)
+- Added back AxiosHeaders in AxiosHeaderValue [#5103](https://github.com/axios/axios/pull/5103)
+- Pin CDN install instructions to a specific version [#5060](https://github.com/axios/axios/pull/5060)
+- Handling of array values fixed for AxiosHeaders [#5085](https://github.com/axios/axios/pull/5085)
+
+### Chores
+
+- docs: match badge style, add link to them [#5046](https://github.com/axios/axios/pull/5046)
+- chore: fixing comments typo [#5054](https://github.com/axios/axios/pull/5054)
+- chore: update issue template [#5061](https://github.com/axios/axios/pull/5061)
+- chore: added progress capturing section to the docs; [#5084](https://github.com/axios/axios/pull/5084)
+
+### Contributors to this release
+
+- [Jason Saayman](https://github.com/jasonsaayman)
+- [scarf](https://github.com/scarf005)
+- [Lenz Weber-Tronic](https://github.com/phryneas)
+- [Arvindh](https://github.com/itsarvindh)
+- [Félix Legrelle](https://github.com/FelixLgr)
+- [Patrick Petrovic](https://github.com/ppati000)
+- [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS)
+- [littledian](https://github.com/littledian)
+- [ChronosMasterOfAllTime](https://github.com/ChronosMasterOfAllTime)
+
+### PRs
+- CVE 2023 45857 ( [#6028](https://api.github.com/repos/axios/axios/pulls/6028) )
+```
+
+⚠️ Critical vulnerability fix. See https://security.snyk.io/vuln/SNYK-JS-AXIOS-6032459
+```
+
+## [1.1.2] - 2022-10-07
+
+### Fixed
+
+- Fixed broken exports for UMD builds.
+
+### Contributors to this release
+
+- [Jason Saayman](https://github.com/jasonsaayman)
+
+### PRs
+- CVE 2023 45857 ( [#6028](https://api.github.com/repos/axios/axios/pulls/6028) )
+```
+
+⚠️ Critical vulnerability fix. See https://security.snyk.io/vuln/SNYK-JS-AXIOS-6032459
+```
+
+## [1.1.1] - 2022-10-07
+
+### Fixed
+
+- Fixed broken exports for common js. This fix breaks a prior fix, I will fix both issues ASAP but the commonJS use is more impactful.
+
+### Contributors to this release
+
+- [Jason Saayman](https://github.com/jasonsaayman)
+
+### PRs
+- CVE 2023 45857 ( [#6028](https://api.github.com/repos/axios/axios/pulls/6028) )
+```
+
+⚠️ Critical vulnerability fix. See https://security.snyk.io/vuln/SNYK-JS-AXIOS-6032459
+```
+
+## [1.1.0] - 2022-10-06
+
+### Fixed
+
+- Fixed missing exports in type definition index.d.ts [#5003](https://github.com/axios/axios/pull/5003)
+- Fixed query params composing [#5018](https://github.com/axios/axios/pull/5018)
+- Fixed GenericAbortSignal interface by making it more generic [#5021](https://github.com/axios/axios/pull/5021)
+- Fixed adding "clear" to AxiosInterceptorManager [#5010](https://github.com/axios/axios/pull/5010)
+- Fixed commonjs & umd exports [#5030](https://github.com/axios/axios/pull/5030)
+- Fixed inability to access response headers when using axios 1.x with Jest [#5036](https://github.com/axios/axios/pull/5036)
+
+### Contributors to this release
+
+- [Trim21](https://github.com/trim21)
+- [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS)
+- [shingo.sasaki](https://github.com/s-sasaki-0529)
+- [Ivan Pepelko](https://github.com/ivanpepelko)
+- [Richard Kořínek](https://github.com/risa)
+
+### PRs
+- CVE 2023 45857 ( [#6028](https://api.github.com/repos/axios/axios/pulls/6028) )
+```
+
+⚠️ Critical vulnerability fix. See https://security.snyk.io/vuln/SNYK-JS-AXIOS-6032459
+```
+
+## [1.0.0] - 2022-10-04
+
+### Added
+
+- Added stack trace to AxiosError [#4624](https://github.com/axios/axios/pull/4624)
+- Add AxiosError to AxiosStatic [#4654](https://github.com/axios/axios/pull/4654)
+- Replaced Rollup as our build runner [#4596](https://github.com/axios/axios/pull/4596)
+- Added generic TS types for the exposed toFormData helper [#4668](https://github.com/axios/axios/pull/4668)
+- Added listen callback function [#4096](https://github.com/axios/axios/pull/4096)
+- Added instructions for installing using PNPM [#4207](https://github.com/axios/axios/pull/4207)
+- Added generic AxiosAbortSignal TS interface to avoid importing AbortController polyfill [#4229](https://github.com/axios/axios/pull/4229)
+- Added axios-url-template in ECOSYSTEM.md [#4238](https://github.com/axios/axios/pull/4238)
+- Added a clear() function to the request and response interceptors object so a user can ensure that all interceptors have been removed from an axios instance [#4248](https://github.com/axios/axios/pull/4248)
+- Added react hook plugin [#4319](https://github.com/axios/axios/pull/4319)
+- Adding HTTP status code for transformResponse [#4580](https://github.com/axios/axios/pull/4580)
+- Added blob to the list of protocols supported by the browser [#4678](https://github.com/axios/axios/pull/4678)
+- Resolving proxy from env on redirect [#4436](https://github.com/axios/axios/pull/4436)
+- Added enhanced toFormData implementation with additional options [4704](https://github.com/axios/axios/pull/4704)
+- Adding Canceler parameters config and request [#4711](https://github.com/axios/axios/pull/4711)
+- Added automatic payload serialization to application/x-www-form-urlencoded [#4714](https://github.com/axios/axios/pull/4714)
+- Added the ability for webpack users to overwrite built-ins [#4715](https://github.com/axios/axios/pull/4715)
+- Added string[] to AxiosRequestHeaders type [#4322](https://github.com/axios/axios/pull/4322)
+- Added the ability for the url-encoded-form serializer to respect the formSerializer config [#4721](https://github.com/axios/axios/pull/4721)
+- Added isCancel type assert [#4293](https://github.com/axios/axios/pull/4293)
+- Added data URL support for node.js [#4725](https://github.com/axios/axios/pull/4725)
+- Adding types for progress event callbacks [#4675](https://github.com/axios/axios/pull/4675)
+- URL params serializer [#4734](https://github.com/axios/axios/pull/4734)
+- Added axios.formToJSON method [#4735](https://github.com/axios/axios/pull/4735)
+- Bower platform add data protocol [#4804](https://github.com/axios/axios/pull/4804)
+- Use WHATWG URL API instead of url.parse() [#4852](https://github.com/axios/axios/pull/4852)
+- Add ENUM containing Http Status Codes to typings [#4903](https://github.com/axios/axios/pull/4903)
+- Improve typing of timeout in index.d.ts [#4934](https://github.com/axios/axios/pull/4934)
+
+### Changed
+
+- Updated AxiosError.config to be optional in the type definition [#4665](https://github.com/axios/axios/pull/4665)
+- Updated README emphasizing the URLSearchParam built-in interface over other solutions [#4590](https://github.com/axios/axios/pull/4590)
+- Include request and config when creating a CanceledError instance [#4659](https://github.com/axios/axios/pull/4659)
+- Changed func-names eslint rule to as-needed [#4492](https://github.com/axios/axios/pull/4492)
+- Replacing deprecated substr() with slice() as substr() is deprecated [#4468](https://github.com/axios/axios/pull/4468)
+- Updating HTTP links in README.md to use HTTPS [#4387](https://github.com/axios/axios/pull/4387)
+- Updated to a better trim() polyfill [#4072](https://github.com/axios/axios/pull/4072)
+- Updated types to allow specifying partial default headers on instance create [#4185](https://github.com/axios/axios/pull/4185)
+- Expanded isAxiosError types [#4344](https://github.com/axios/axios/pull/4344)
+- Updated type definition for axios instance methods [#4224](https://github.com/axios/axios/pull/4224)
+- Updated eslint config [#4722](https://github.com/axios/axios/pull/4722)
+- Updated Docs [#4742](https://github.com/axios/axios/pull/4742)
+- Refactored Axios to use ES2017 [#4787](https://github.com/axios/axios/pull/4787)
+
+
+### Deprecated
+- There are multiple deprecations, refactors and fixes provided in this release. Please read through the full release notes to see how this may impact your project and use case.
+
+### Removed
+
+- Removed incorrect argument for NetworkError constructor [#4656](https://github.com/axios/axios/pull/4656)
+- Removed Webpack [#4596](https://github.com/axios/axios/pull/4596)
+- Removed function that transform arguments to array [#4544](https://github.com/axios/axios/pull/4544)
+
+### Fixed
+
+- Fixed grammar in README [#4649](https://github.com/axios/axios/pull/4649)
+- Fixed code error in README [#4599](https://github.com/axios/axios/pull/4599)
+- Optimized the code that checks cancellation [#4587](https://github.com/axios/axios/pull/4587)
+- Fix url pointing to defaults.js in README [#4532](https://github.com/axios/axios/pull/4532)
+- Use type alias instead of interface for AxiosPromise [#4505](https://github.com/axios/axios/pull/4505)
+- Fix some word spelling and lint style in code comments [#4500](https://github.com/axios/axios/pull/4500)
+- Edited readme with 3 updated browser icons of Chrome, FireFox and Safari [#4414](https://github.com/axios/axios/pull/4414)
+- Bump follow-redirects from 1.14.9 to 1.15.0 [#4673](https://github.com/axios/axios/pull/4673)
+- Fixing http tests to avoid hanging when assertions fail [#4435](https://github.com/axios/axios/pull/4435)
+- Fix TS definition for AxiosRequestTransformer [#4201](https://github.com/axios/axios/pull/4201)
+- Fix grammatical issues in README [#4232](https://github.com/axios/axios/pull/4232)
+- Fixing instance.defaults.headers type [#4557](https://github.com/axios/axios/pull/4557)
+- Fixed race condition on immediate requests cancellation [#4261](https://github.com/axios/axios/pull/4261)
+- Fixing Z_BUF_ERROR when no content [#4701](https://github.com/axios/axios/pull/4701)
+- Fixing proxy beforeRedirect regression [#4708](https://github.com/axios/axios/pull/4708)
+- Fixed AxiosError status code type [#4717](https://github.com/axios/axios/pull/4717)
+- Fixed AxiosError stack capturing [#4718](https://github.com/axios/axios/pull/4718)
+- Fixing AxiosRequestHeaders typings [#4334](https://github.com/axios/axios/pull/4334)
+- Fixed max body length defaults [#4731](https://github.com/axios/axios/pull/4731)
+- Fixed toFormData Blob issue on node>v17 [#4728](https://github.com/axios/axios/pull/4728)
+- Bump grunt from 1.5.2 to 1.5.3 [#4743](https://github.com/axios/axios/pull/4743)
+- Fixing content-type header repeated [#4745](https://github.com/axios/axios/pull/4745)
+- Fixed timeout error message for http [4738](https://github.com/axios/axios/pull/4738)
+- Request ignores false, 0 and empty string as body values [#4785](https://github.com/axios/axios/pull/4785)
+- Added back missing minified builds [#4805](https://github.com/axios/axios/pull/4805)
+- Fixed a type error [#4815](https://github.com/axios/axios/pull/4815)
+- Fixed a regression bug with unsubscribing from cancel token; [#4819](https://github.com/axios/axios/pull/4819)
+- Remove repeated compression algorithm [#4820](https://github.com/axios/axios/pull/4820)
+- The error of calling extend to pass parameters [#4857](https://github.com/axios/axios/pull/4857)
+- SerializerOptions.indexes allows boolean | null | undefined [#4862](https://github.com/axios/axios/pull/4862)
+- Require interceptors to return values [#4874](https://github.com/axios/axios/pull/4874)
+- Removed unused imports [#4949](https://github.com/axios/axios/pull/4949)
+- Allow null indexes on formSerializer and paramsSerializer [#4960](https://github.com/axios/axios/pull/4960)
+
+### Chores
+- Set permissions for GitHub actions [#4765](https://github.com/axios/axios/pull/4765)
+- Included githubactions in the dependabot config [#4770](https://github.com/axios/axios/pull/4770)
+- Included dependency review [#4771](https://github.com/axios/axios/pull/4771)
+- Update security.md [#4784](https://github.com/axios/axios/pull/4784)
+- Remove unnecessary spaces [#4854](https://github.com/axios/axios/pull/4854)
+- Simplify the import path of AxiosError [#4875](https://github.com/axios/axios/pull/4875)
+- Fix Gitpod dead link [#4941](https://github.com/axios/axios/pull/4941)
+- Enable syntax highlighting for a code block [#4970](https://github.com/axios/axios/pull/4970)
+- Using Logo Axios in Readme.md [#4993](https://github.com/axios/axios/pull/4993)
+- Fix markup for note in README [#4825](https://github.com/axios/axios/pull/4825)
+- Fix typo and formatting, add colons [#4853](https://github.com/axios/axios/pull/4853)
+- Fix typo in readme [#4942](https://github.com/axios/axios/pull/4942)
+
+### Security
+
+- Update SECURITY.md [#4687](https://github.com/axios/axios/pull/4687)
+
+### Contributors to this release
+
+- [Bertrand Marron](https://github.com/tusbar)
+- [Dmitriy Mozgovoy](https://github.com/DigitalBrainJS)
+- [Dan Mooney](https://github.com/danmooney)
+- [Michael Li](https://github.com/xiaoyu-tamu)
+- [aong](https://github.com/yxwzaxns)
+- [Des Preston](https://github.com/despreston)
+- [Ted Robertson](https://github.com/tredondo)
+- [zhoulixiang](https://github.com/zh-lx)
+- [Arthur Fiorette](https://github.com/arthurfiorette)
+- [Kumar Shanu](https://github.com/Kr-Shanu)
+- [JALAL](https://github.com/JLL32)
+- [Jingyi Lin](https://github.com/MageeLin)
+- [Philipp Loose](https://github.com/phloose)
+- [Alexander Shchukin](https://github.com/sashsvamir)
+- [Dave Cardwell](https://github.com/davecardwell)
+- [Cat Scarlet](https://github.com/catscarlet)
+- [Luca Pizzini](https://github.com/lpizzinidev)
+- [Kai](https://github.com/Schweinepriester)
+- [Maxime Bargiel](https://github.com/mbargiel)
+- [Brian Helba](https://github.com/brianhelba)
+- [reslear](https://github.com/reslear)
+- [Jamie Slome](https://github.com/JamieSlome)
+- [Landro3](https://github.com/Landro3)
+- [rafw87](https://github.com/rafw87)
+- [Afzal Sayed](https://github.com/afzalsayed96)
+- [Koki Oyatsu](https://github.com/kaishuu0123)
+- [Dave](https://github.com/wangcch)
+- [暴走老七](https://github.com/baozouai)
+- [Spencer](https://github.com/spalger)
+- [Adrian Wieprzkowicz](https://github.com/Argeento)
+- [Jamie Telin](https://github.com/lejahmie)
+- [毛呆](https://github.com/aweikalee)
+- [Kirill Shakirov](https://github.com/turisap)
+- [Rraji Abdelbari](https://github.com/estarossa0)
+- [Jelle Schutter](https://github.com/jelleschutter)
+- [Tom Ceuppens](https://github.com/KyorCode)
+- [Johann Cooper](https://github.com/JohannCooper)
+- [Dimitris Halatsis](https://github.com/mitsos1os)
+- [chenjigeng](https://github.com/chenjigeng)
+- [João Gabriel Quaresma](https://github.com/joaoGabriel55)
+- [Victor Augusto](https://github.com/VictorAugDB)
+- [neilnaveen](https://github.com/neilnaveen)
+- [Pavlos](https://github.com/psmoros)
+- [Kiryl Valkovich](https://github.com/visortelle)
+- [Naveen](https://github.com/naveensrinivasan)
+- [wenzheng](https://github.com/0x30)
+- [hcwhan](https://github.com/hcwhan)
+- [Bassel Rachid](https://github.com/basselworkforce)
+- [Grégoire Pineau](https://github.com/lyrixx)
+- [felipedamin](https://github.com/felipedamin)
+- [Karl Horky](https://github.com/karlhorky)
+- [Yue JIN](https://github.com/kingyue737)
+- [Usman Ali Siddiqui](https://github.com/usman250994)
+- [WD](https://github.com/techbirds)
+- [Günther Foidl](https://github.com/gfoidl)
+- [Stephen Jennings](https://github.com/jennings)
+- [C.T.Lin](https://github.com/chentsulin)
+- [mia-z](https://github.com/mia-z)
+- [Parth Banathia](https://github.com/Parth0105)
+- [parth0105pluang](https://github.com/parth0105pluang)
+- [Marco Weber](https://github.com/mrcwbr)
+- [Luca Pizzini](https://github.com/lpizzinidev)
+- [Willian Agostini](https://github.com/WillianAgostini)
+- [Huyen Nguyen](https://github.com/huyenltnguyen)
\ No newline at end of file
diff --git a/backend/node_modules/axios/LICENSE b/backend/node_modules/axios/LICENSE
new file mode 100644
index 0000000..05006a5
--- /dev/null
+++ b/backend/node_modules/axios/LICENSE
@@ -0,0 +1,7 @@
+# Copyright (c) 2014-present Matt Zabriskie & Collaborators
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/axios/MIGRATION_GUIDE.md b/backend/node_modules/axios/MIGRATION_GUIDE.md
new file mode 100644
index 0000000..ec3ae0d
--- /dev/null
+++ b/backend/node_modules/axios/MIGRATION_GUIDE.md
@@ -0,0 +1,3 @@
+# Migration Guide
+
+## 0.x.x -> 1.1.0
diff --git a/backend/node_modules/axios/README.md b/backend/node_modules/axios/README.md
new file mode 100644
index 0000000..f92b3b8
--- /dev/null
+++ b/backend/node_modules/axios/README.md
@@ -0,0 +1,1657 @@
+
+<h3 align="center"> 🥇 Gold sponsors <br> </h3> <table align="center" width="100%"><tr width="33.333333333333336%"><td align="center" width="33.333333333333336%"> <a href="https://stytch.com/?utm_source&#x3D;oss-sponsorship&amp;utm_medium&#x3D;paid_sponsorship&amp;utm_content&#x3D;website-link&amp;utm_campaign&#x3D;axios-http" style="padding: 10px; display: inline-block"> <picture> <source width="200px" height="38px" media="(prefers-color-scheme: dark)" srcset="https://axios-http.com/assets/sponsors/stytch_white.png"> <img width="200px" height="38px" src="https://axios-http.com/assets/sponsors/stytch.png" alt="Stytch"/> </picture> </a> <p align="center" title="API-first authentication, authorization, and fraud prevention">API-first authentication, authorization, and fraud prevention</p> <p align="center"> <a href="https://stytch.com/?utm_source&#x3D;oss-sponsorship&amp;utm_medium&#x3D;paid_sponsorship&amp;utm_content&#x3D;website-link&amp;utm_campaign&#x3D;axios-http"><b>Website</b></a> | <a href="https://stytch.com/docs?utm_source&#x3D;oss-sponsorship&amp;utm_medium&#x3D;paid_sponsorship&amp;utm_content&#x3D;docs-link&amp;utm_campaign&#x3D;axios-http"><b>Documentation</b></a> | <a href="https://github.com/stytchauth/stytch-node?utm_source&#x3D;oss-sponsorship&amp;utm_medium&#x3D;paid_sponsorship&amp;utm_content&#x3D;node-sdk&amp;utm_campaign&#x3D;axios-http"><b>Node.js</b></a> </p>
+</td><td align="center" width="33.333333333333336%"> <a href="https://www.principal.com/about-us?utm_source&#x3D;axios&amp;utm_medium&#x3D;sponsorlist&amp;utm_campaign&#x3D;sponsorship" style="padding: 10px; display: inline-block"> <img width="133px" height="43px" src="https://axios-http.com/assets/sponsors/principal.svg" alt="Principal Financial Group"/> </a> <p align="center" title="We’re bound by one common purpose: to give you the financial tools, resources and information you need to live your best life.">We’re bound by one common purpose: to give you the financial tools, resources and information you ne...</p> <p align="center"> <a href="https://www.principal.com/about-us?utm_source&#x3D;axios&amp;utm_medium&#x3D;readme_sponsorlist&amp;utm_campaign&#x3D;sponsorship"><b>www.principal.com</b></a> </p>
+</td><td align="center" width="33.333333333333336%"> <a href="https://www.descope.com/?utm_source&#x3D;axios&amp;utm_medium&#x3D;referral&amp;utm_campaign&#x3D;axios-oss-sponsorship" style="padding: 10px; display: inline-block"> <picture> <source width="200px" height="52px" media="(prefers-color-scheme: dark)" srcset="https://axios-http.com/assets/sponsors/descope_white.png"> <img width="200px" height="52px" src="https://axios-http.com/assets/sponsors/descope.png" alt="Descope"/> </picture> </a> <p align="center" title="Hi, we&#x27;re Descope! We are building something in the authentication space for app developers and can’t wait to place it in your hands.">Hi, we&#x27;re Descope! We are building something in the authentication space for app developers and...</p> <p align="center"> <a href="https://www.descope.com/?utm_source&#x3D;axios&amp;utm_medium&#x3D;referral&amp;utm_campaign&#x3D;axios-oss-sponsorship"><b>Website</b></a> | <a href="https://docs.descope.com/?utm_source&#x3D;axios&amp;utm_medium&#x3D;referral&amp;utm_campaign&#x3D;axios-oss-sponsorship"><b>Documentation</b></a> | <a href="https://www.descope.com/community?utm_source&#x3D;axios&amp;utm_medium&#x3D;referral&amp;utm_campaign&#x3D;axios-oss-sponsorship"><b>Community</b></a> </p>
+</td></tr><tr width="33.333333333333336%"><td align="center" width="33.333333333333336%"> <a href="https://buzzoid.com/buy-instagram-followers/?utm_source&#x3D;axios&amp;utm_medium&#x3D;sponsorlist&amp;utm_campaign&#x3D;sponsorship" style="padding: 10px; display: inline-block"> <img width="62px" height="70px" src="https://axios-http.com/assets/sponsors/opencollective/buzzoid-buy-instagram-followers.png" alt="Buzzoid - Buy Instagram Followers"/> </a> <p align="center" title="At Buzzoid, you can buy Instagram followers quickly, safely, and easily with just a few clicks. Rated world&#x27;s #1 IG service since 2012.">At Buzzoid, you can buy Instagram followers quickly, safely, and easily with just a few clicks. Rate...</p> <p align="center"> <a href="https://buzzoid.com/buy-instagram-followers/?utm_source&#x3D;axios&amp;utm_medium&#x3D;readme_sponsorlist&amp;utm_campaign&#x3D;sponsorship"><b>buzzoid.com</b></a> </p>
+</td><td align="center" width="33.333333333333336%"> <a href="https://www.famety.com/buy-tiktok-likes?utm_source&#x3D;axios&amp;utm_medium&#x3D;sponsorlist&amp;utm_campaign&#x3D;sponsorship" style="padding: 10px; display: inline-block"> <img width="70px" height="70px" src="https://axios-http.com/assets/sponsors/opencollective/famety-buy-instagram-followers.png" alt="Famety - Buy Instagram Followers"/> </a> <p align="center" title="At Famety, you can grow your social media following quickly, safely, and easily with just a few clicks. Rated the world’s #1 social media service since 2013.">At Famety, you can grow your social media following quickly, safely, and easily with just a few clic...</p> <p align="center"> <a href="https://www.famety.com/buy-tiktok-likes?utm_source&#x3D;axios&amp;utm_medium&#x3D;readme_sponsorlist&amp;utm_campaign&#x3D;sponsorship"><b>www.famety.com</b></a> </p>
+</td><td align="center" width="33.333333333333336%"> <a href="https://poprey.com/?utm_source&#x3D;axios&amp;utm_medium&#x3D;sponsorlist&amp;utm_campaign&#x3D;sponsorship" style="padding: 10px; display: inline-block"> <img width="70px" height="70px" src="https://axios-http.com/assets/sponsors/opencollective/instagram-likes.png" alt="Poprey - Buy Instagram Likes"/> </a> <p align="center" title="Buy Instagram Likes">Buy Instagram Likes</p> <p align="center"> <a href="https://poprey.com/?utm_source&#x3D;axios&amp;utm_medium&#x3D;readme_sponsorlist&amp;utm_campaign&#x3D;sponsorship"><b>poprey.com</b></a> </p>
+</td></tr><tr width="33.333333333333336%"><td align="center" width="33.333333333333336%"> <a href="https://opencollective.com/axios/contribute">💜 Become a sponsor</a>
+</td><td align="center" width="33.333333333333336%"> <a href="https://opencollective.com/axios/contribute">💜 Become a sponsor</a>
+</td><td align="center" width="33.333333333333336%"> <a href="https://opencollective.com/axios/contribute">💜 Become a sponsor</a>
+</td></tr></table>
+
+<!--<div>marker</div>-->
+<br><br>
+<div align="center">
+   <a href="https://axios-http.com"><img src="https://axios-http.com/assets/logo.svg" /></a><br>
+</div>
+
+<p align="center">Promise based HTTP client for the browser and node.js</p>
+
+<p align="center">
+    <a href="https://axios-http.com/"><b>Website</b></a> •
+    <a href="https://axios-http.com/docs/intro"><b>Documentation</b></a>
+</p>
+
+<div align="center">
+
+[![npm version](https://img.shields.io/npm/v/axios.svg?style=flat-square)](https://www.npmjs.org/package/axios)
+[![CDNJS](https://img.shields.io/cdnjs/v/axios.svg?style=flat-square)](https://cdnjs.com/libraries/axios)
+[![Build status](https://img.shields.io/github/actions/workflow/status/axios/axios/ci.yml?branch=v1.x&label=CI&logo=github&style=flat-square)](https://github.com/axios/axios/actions/workflows/ci.yml)
+[![Gitpod Ready-to-Code](https://img.shields.io/badge/Gitpod-Ready--to--Code-blue?logo=gitpod&style=flat-square)](https://gitpod.io/#https://github.com/axios/axios)
+[![code coverage](https://img.shields.io/coveralls/mzabriskie/axios.svg?style=flat-square)](https://coveralls.io/r/mzabriskie/axios)
+[![install size](https://img.shields.io/badge/dynamic/json?url=https://packagephobia.com/v2/api.json?p=axios&query=$.install.pretty&label=install%20size&style=flat-square)](https://packagephobia.now.sh/result?p=axios)
+[![npm bundle size](https://img.shields.io/bundlephobia/minzip/axios?style=flat-square)](https://bundlephobia.com/package/axios@latest)
+[![npm downloads](https://img.shields.io/npm/dm/axios.svg?style=flat-square)](https://npm-stat.com/charts.html?package=axios)
+[![gitter chat](https://img.shields.io/gitter/room/mzabriskie/axios.svg?style=flat-square)](https://gitter.im/mzabriskie/axios)
+[![code helpers](https://www.codetriage.com/axios/axios/badges/users.svg)](https://www.codetriage.com/axios/axios)
+[![Known Vulnerabilities](https://snyk.io/test/npm/axios/badge.svg)](https://snyk.io/test/npm/axios)
+
+
+
+
+</div>
+
+## Table of Contents
+
+  - [Features](#features)
+  - [Browser Support](#browser-support)
+  - [Installing](#installing)
+    - [Package manager](#package-manager)
+    - [CDN](#cdn)
+  - [Example](#example)
+  - [Axios API](#axios-api)
+  - [Request method aliases](#request-method-aliases)
+  - [Concurrency 👎](#concurrency-deprecated)
+  - [Creating an instance](#creating-an-instance)
+  - [Instance methods](#instance-methods)
+  - [Request Config](#request-config)
+  - [Response Schema](#response-schema)
+  - [Config Defaults](#config-defaults)
+    - [Global axios defaults](#global-axios-defaults)
+    - [Custom instance defaults](#custom-instance-defaults)
+    - [Config order of precedence](#config-order-of-precedence)
+  - [Interceptors](#interceptors)
+    - [Multiple Interceptors](#multiple-interceptors)
+  - [Handling Errors](#handling-errors)
+  - [Cancellation](#cancellation)
+    - [AbortController](#abortcontroller)
+    - [CancelToken 👎](#canceltoken-deprecated)
+  - [Using application/x-www-form-urlencoded format](#using-applicationx-www-form-urlencoded-format)
+    - [URLSearchParams](#urlsearchparams)
+    - [Query string](#query-string-older-browsers)
+    - [🆕 Automatic serialization](#-automatic-serialization-to-urlsearchparams)
+  - [Using multipart/form-data format](#using-multipartform-data-format)
+    - [FormData](#formdata)
+    - [🆕 Automatic serialization](#-automatic-serialization-to-formdata)
+  - [Files Posting](#files-posting)
+  - [HTML Form Posting](#-html-form-posting-browser)
+  - [🆕 Progress capturing](#-progress-capturing)
+  - [🆕 Rate limiting](#-progress-capturing)
+  - [🆕 AxiosHeaders](#-axiosheaders)
+  - [🔥 Fetch adapter](#-fetch-adapter)
+  - [Semver](#semver)
+  - [Promises](#promises)
+  - [TypeScript](#typescript)
+  - [Resources](#resources)
+  - [Credits](#credits)
+  - [License](#license)
+
+## Features
+
+- Make [XMLHttpRequests](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest) from the browser
+- Make [http](https://nodejs.org/api/http.html) requests from node.js
+- Supports the [Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise) API
+- Intercept request and response
+- Transform request and response data
+- Cancel requests
+- Automatic transforms for [JSON](https://www.json.org/json-en.html) data
+- 🆕 Automatic data object serialization to `multipart/form-data` and `x-www-form-urlencoded` body encodings
+- Client side support for protecting against [XSRF](https://en.wikipedia.org/wiki/Cross-site_request_forgery)
+
+## Browser Support
+
+![Chrome](https://raw.githubusercontent.com/alrra/browser-logos/main/src/chrome/chrome_48x48.png) | ![Firefox](https://raw.githubusercontent.com/alrra/browser-logos/main/src/firefox/firefox_48x48.png) | ![Safari](https://raw.githubusercontent.com/alrra/browser-logos/main/src/safari/safari_48x48.png) | ![Opera](https://raw.githubusercontent.com/alrra/browser-logos/main/src/opera/opera_48x48.png) | ![Edge](https://raw.githubusercontent.com/alrra/browser-logos/main/src/edge/edge_48x48.png) |
+--- | --- | --- | --- | --- |
+Latest ✔ | Latest ✔ | Latest ✔ | Latest ✔ | Latest ✔ | 11 ✔ |
+
+[![Browser Matrix](https://saucelabs.com/open_sauce/build_matrix/axios.svg)](https://saucelabs.com/u/axios)
+
+## Installing
+
+### Package manager
+
+Using npm:
+
+```bash
+$ npm install axios
+```
+
+Using bower:
+
+```bash
+$ bower install axios
+```
+
+Using yarn:
+
+```bash
+$ yarn add axios
+```
+
+Using pnpm:
+
+```bash
+$ pnpm add axios
+```
+
+Once the package is installed, you can import the library using `import` or `require` approach:
+
+```js
+import axios, {isCancel, AxiosError} from 'axios';
+```
+
+You can also use the default export, since the named export is just a re-export from the Axios factory:
+
+```js
+import axios from 'axios';
+
+console.log(axios.isCancel('something'));
+````
+
+If you use `require` for importing, **only default export is available**:
+
+```js
+const axios = require('axios');
+
+console.log(axios.isCancel('something'));
+```
+
+For some bundlers and some ES6 linter's you may need to do the following:
+
+```js
+import { default as axios } from 'axios';
+```
+
+For cases where something went wrong when trying to import a module into a custom or legacy environment,
+you can try importing the module package directly:
+
+```js
+const axios = require('axios/dist/browser/axios.cjs'); // browser commonJS bundle (ES2017)
+// const axios = require('axios/dist/node/axios.cjs'); // node commonJS bundle (ES2017)
+```
+
+### CDN
+
+Using jsDelivr CDN (ES5 UMD browser module):
+
+```html
+<script src="https://cdn.jsdelivr.net/npm/axios@1.6.7/dist/axios.min.js"></script>
+```
+
+Using unpkg CDN:
+
+```html
+<script src="https://unpkg.com/axios@1.6.7/dist/axios.min.js"></script>
+```
+
+## Example
+
+> **Note**: CommonJS usage  
+> In order to gain the TypeScript typings (for intellisense / autocomplete) while using CommonJS imports with `require()`, use the following approach:
+
+```js
+import axios from 'axios';
+//const axios = require('axios'); // legacy way
+
+// Make a request for a user with a given ID
+axios.get('/user?ID=12345')
+  .then(function (response) {
+    // handle success
+    console.log(response);
+  })
+  .catch(function (error) {
+    // handle error
+    console.log(error);
+  })
+  .finally(function () {
+    // always executed
+  });
+
+// Optionally the request above could also be done as
+axios.get('/user', {
+    params: {
+      ID: 12345
+    }
+  })
+  .then(function (response) {
+    console.log(response);
+  })
+  .catch(function (error) {
+    console.log(error);
+  })
+  .finally(function () {
+    // always executed
+  });
+
+// Want to use async/await? Add the `async` keyword to your outer function/method.
+async function getUser() {
+  try {
+    const response = await axios.get('/user?ID=12345');
+    console.log(response);
+  } catch (error) {
+    console.error(error);
+  }
+}
+```
+
+> **Note**: `async/await` is part of ECMAScript 2017 and is not supported in Internet
+> Explorer and older browsers, so use with caution.
+
+Performing a `POST` request
+
+```js
+axios.post('/user', {
+    firstName: 'Fred',
+    lastName: 'Flintstone'
+  })
+  .then(function (response) {
+    console.log(response);
+  })
+  .catch(function (error) {
+    console.log(error);
+  });
+```
+
+Performing multiple concurrent requests
+
+```js
+function getUserAccount() {
+  return axios.get('/user/12345');
+}
+
+function getUserPermissions() {
+  return axios.get('/user/12345/permissions');
+}
+
+Promise.all([getUserAccount(), getUserPermissions()])
+  .then(function (results) {
+    const acct = results[0];
+    const perm = results[1];
+  });
+```
+
+## axios API
+
+Requests can be made by passing the relevant config to `axios`.
+
+##### axios(config)
+
+```js
+// Send a POST request
+axios({
+  method: 'post',
+  url: '/user/12345',
+  data: {
+    firstName: 'Fred',
+    lastName: 'Flintstone'
+  }
+});
+```
+
+```js
+// GET request for remote image in node.js
+axios({
+  method: 'get',
+  url: 'https://bit.ly/2mTM3nY',
+  responseType: 'stream'
+})
+  .then(function (response) {
+    response.data.pipe(fs.createWriteStream('ada_lovelace.jpg'))
+  });
+```
+
+##### axios(url[, config])
+
+```js
+// Send a GET request (default method)
+axios('/user/12345');
+```
+
+### Request method aliases
+
+For convenience, aliases have been provided for all common request methods.
+
+##### axios.request(config)
+##### axios.get(url[, config])
+##### axios.delete(url[, config])
+##### axios.head(url[, config])
+##### axios.options(url[, config])
+##### axios.post(url[, data[, config]])
+##### axios.put(url[, data[, config]])
+##### axios.patch(url[, data[, config]])
+
+###### NOTE
+When using the alias methods `url`, `method`, and `data` properties don't need to be specified in config.
+
+### Concurrency (Deprecated)
+Please use `Promise.all` to replace the below functions.
+
+Helper functions for dealing with concurrent requests.
+
+axios.all(iterable)
+axios.spread(callback)
+
+### Creating an instance
+
+You can create a new instance of axios with a custom config.
+
+##### axios.create([config])
+
+```js
+const instance = axios.create({
+  baseURL: 'https://some-domain.com/api/',
+  timeout: 1000,
+  headers: {'X-Custom-Header': 'foobar'}
+});
+```
+
+### Instance methods
+
+The available instance methods are listed below. The specified config will be merged with the instance config.
+
+##### axios#request(config)
+##### axios#get(url[, config])
+##### axios#delete(url[, config])
+##### axios#head(url[, config])
+##### axios#options(url[, config])
+##### axios#post(url[, data[, config]])
+##### axios#put(url[, data[, config]])
+##### axios#patch(url[, data[, config]])
+##### axios#getUri([config])
+
+## Request Config
+
+These are the available config options for making requests. Only the `url` is required. Requests will default to `GET` if `method` is not specified.
+
+```js
+{
+  // `url` is the server URL that will be used for the request
+  url: '/user',
+
+  // `method` is the request method to be used when making the request
+  method: 'get', // default
+
+  // `baseURL` will be prepended to `url` unless `url` is absolute.
+  // It can be convenient to set `baseURL` for an instance of axios to pass relative URLs
+  // to methods of that instance.
+  baseURL: 'https://some-domain.com/api/',
+
+  // `transformRequest` allows changes to the request data before it is sent to the server
+  // This is only applicable for request methods 'PUT', 'POST', 'PATCH' and 'DELETE'
+  // The last function in the array must return a string or an instance of Buffer, ArrayBuffer,
+  // FormData or Stream
+  // You may modify the headers object.
+  transformRequest: [function (data, headers) {
+    // Do whatever you want to transform the data
+
+    return data;
+  }],
+
+  // `transformResponse` allows changes to the response data to be made before
+  // it is passed to then/catch
+  transformResponse: [function (data) {
+    // Do whatever you want to transform the data
+
+    return data;
+  }],
+
+  // `headers` are custom headers to be sent
+  headers: {'X-Requested-With': 'XMLHttpRequest'},
+
+  // `params` are the URL parameters to be sent with the request
+  // Must be a plain object or a URLSearchParams object
+  params: {
+    ID: 12345
+  },
+  
+  // `paramsSerializer` is an optional config that allows you to customize serializing `params`. 
+  paramsSerializer: {
+
+    //Custom encoder function which sends key/value pairs in an iterative fashion.
+    encode?: (param: string): string => { /* Do custom operations here and return transformed string */ }, 
+    
+    // Custom serializer function for the entire parameter. Allows user to mimic pre 1.x behaviour.
+    serialize?: (params: Record<string, any>, options?: ParamsSerializerOptions ), 
+    
+    //Configuration for formatting array indexes in the params. 
+    indexes: false // Three available options: (1) indexes: null (leads to no brackets), (2) (default) indexes: false (leads to empty brackets), (3) indexes: true (leads to brackets with indexes).    
+  },
+
+  // `data` is the data to be sent as the request body
+  // Only applicable for request methods 'PUT', 'POST', 'DELETE , and 'PATCH'
+  // When no `transformRequest` is set, must be of one of the following types:
+  // - string, plain object, ArrayBuffer, ArrayBufferView, URLSearchParams
+  // - Browser only: FormData, File, Blob
+  // - Node only: Stream, Buffer, FormData (form-data package)
+  data: {
+    firstName: 'Fred'
+  },
+
+  // syntax alternative to send data into the body
+  // method post
+  // only the value is sent, not the key
+  data: 'Country=Brasil&City=Belo Horizonte',
+
+  // `timeout` specifies the number of milliseconds before the request times out.
+  // If the request takes longer than `timeout`, the request will be aborted.
+  timeout: 1000, // default is `0` (no timeout)
+
+  // `withCredentials` indicates whether or not cross-site Access-Control requests
+  // should be made using credentials
+  withCredentials: false, // default
+
+  // `adapter` allows custom handling of requests which makes testing easier.
+  // Return a promise and supply a valid response (see lib/adapters/README.md)
+  adapter: function (config) {
+    /* ... */
+  },
+  // Also, you can set the name of the built-in adapter, or provide an array with their names
+  // to choose the first available in the environment
+  adapter: 'xhr' // 'fetch' | 'http' | ['xhr', 'http', 'fetch']
+
+  // `auth` indicates that HTTP Basic auth should be used, and supplies credentials.
+  // This will set an `Authorization` header, overwriting any existing
+  // `Authorization` custom headers you have set using `headers`.
+  // Please note that only HTTP Basic auth is configurable through this parameter.
+  // For Bearer tokens and such, use `Authorization` custom headers instead.
+  auth: {
+    username: 'janedoe',
+    password: 's00pers3cret'
+  },
+
+  // `responseType` indicates the type of data that the server will respond with
+  // options are: 'arraybuffer', 'document', 'json', 'text', 'stream'
+  //   browser only: 'blob'
+  responseType: 'json', // default
+
+  // `responseEncoding` indicates encoding to use for decoding responses (Node.js only)
+  // Note: Ignored for `responseType` of 'stream' or client-side requests
+  // options are: 'ascii', 'ASCII', 'ansi', 'ANSI', 'binary', 'BINARY', 'base64', 'BASE64', 'base64url',
+  // 'BASE64URL', 'hex', 'HEX', 'latin1', 'LATIN1', 'ucs-2', 'UCS-2', 'ucs2', 'UCS2', 'utf-8', 'UTF-8',
+  // 'utf8', 'UTF8', 'utf16le', 'UTF16LE'
+  responseEncoding: 'utf8', // default
+
+  // `xsrfCookieName` is the name of the cookie to use as a value for xsrf token
+  xsrfCookieName: 'XSRF-TOKEN', // default
+
+  // `xsrfHeaderName` is the name of the http header that carries the xsrf token value
+  xsrfHeaderName: 'X-XSRF-TOKEN', // default
+    
+  // `undefined` (default) - set XSRF header only for the same origin requests
+  withXSRFToken: boolean | undefined | ((config: InternalAxiosRequestConfig) => boolean | undefined),
+
+  // `onUploadProgress` allows handling of progress events for uploads
+  // browser & node.js
+  onUploadProgress: function ({loaded, total, progress, bytes, estimated, rate, upload = true}) {
+    // Do whatever you want with the Axios progress event
+  },
+
+  // `onDownloadProgress` allows handling of progress events for downloads
+  // browser & node.js
+  onDownloadProgress: function ({loaded, total, progress, bytes, estimated, rate, download = true}) {
+    // Do whatever you want with the Axios progress event
+  },
+
+  // `maxContentLength` defines the max size of the http response content in bytes allowed in node.js
+  maxContentLength: 2000,
+
+  // `maxBodyLength` (Node only option) defines the max size of the http request content in bytes allowed
+  maxBodyLength: 2000,
+
+  // `validateStatus` defines whether to resolve or reject the promise for a given
+  // HTTP response status code. If `validateStatus` returns `true` (or is set to `null`
+  // or `undefined`), the promise will be resolved; otherwise, the promise will be
+  // rejected.
+  validateStatus: function (status) {
+    return status >= 200 && status < 300; // default
+  },
+
+  // `maxRedirects` defines the maximum number of redirects to follow in node.js.
+  // If set to 0, no redirects will be followed.
+  maxRedirects: 21, // default
+
+  // `beforeRedirect` defines a function that will be called before redirect.
+  // Use this to adjust the request options upon redirecting,
+  // to inspect the latest response headers,
+  // or to cancel the request by throwing an error
+  // If maxRedirects is set to 0, `beforeRedirect` is not used.
+  beforeRedirect: (options, { headers }) => {
+    if (options.hostname === "example.com") {
+      options.auth = "user:password";
+    }
+  },
+
+  // `socketPath` defines a UNIX Socket to be used in node.js.
+  // e.g. '/var/run/docker.sock' to send requests to the docker daemon.
+  // Only either `socketPath` or `proxy` can be specified.
+  // If both are specified, `socketPath` is used.
+  socketPath: null, // default
+  
+  // `transport` determines the transport method that will be used to make the request. If defined, it will be used. Otherwise, if `maxRedirects` is 0, the default `http` or `https` library will be used, depending on the protocol specified in `protocol`. Otherwise, the `httpFollow` or `httpsFollow` library will be used, again depending on the protocol, which can handle redirects.
+  transport: undefined, // default
+
+  // `httpAgent` and `httpsAgent` define a custom agent to be used when performing http
+  // and https requests, respectively, in node.js. This allows options to be added like
+  // `keepAlive` that are not enabled by default.
+  httpAgent: new http.Agent({ keepAlive: true }),
+  httpsAgent: new https.Agent({ keepAlive: true }),
+
+  // `proxy` defines the hostname, port, and protocol of the proxy server.
+  // You can also define your proxy using the conventional `http_proxy` and
+  // `https_proxy` environment variables. If you are using environment variables
+  // for your proxy configuration, you can also define a `no_proxy` environment
+  // variable as a comma-separated list of domains that should not be proxied.
+  // Use `false` to disable proxies, ignoring environment variables.
+  // `auth` indicates that HTTP Basic auth should be used to connect to the proxy, and
+  // supplies credentials.
+  // This will set an `Proxy-Authorization` header, overwriting any existing
+  // `Proxy-Authorization` custom headers you have set using `headers`.
+  // If the proxy server uses HTTPS, then you must set the protocol to `https`.
+  proxy: {
+    protocol: 'https',
+    host: '127.0.0.1',
+    // hostname: '127.0.0.1' // Takes precedence over 'host' if both are defined
+    port: 9000,
+    auth: {
+      username: 'mikeymike',
+      password: 'rapunz3l'
+    }
+  },
+
+  // `cancelToken` specifies a cancel token that can be used to cancel the request
+  // (see Cancellation section below for details)
+  cancelToken: new CancelToken(function (cancel) {
+  }),
+
+  // an alternative way to cancel Axios requests using AbortController
+  signal: new AbortController().signal,
+
+  // `decompress` indicates whether or not the response body should be decompressed
+  // automatically. If set to `true` will also remove the 'content-encoding' header
+  // from the responses objects of all decompressed responses
+  // - Node only (XHR cannot turn off decompression)
+  decompress: true, // default
+
+  // `insecureHTTPParser` boolean.
+  // Indicates where to use an insecure HTTP parser that accepts invalid HTTP headers.
+  // This may allow interoperability with non-conformant HTTP implementations.
+  // Using the insecure parser should be avoided.
+  // see options https://nodejs.org/dist/latest-v12.x/docs/api/http.html#http_http_request_url_options_callback
+  // see also https://nodejs.org/en/blog/vulnerability/february-2020-security-releases/#strict-http-header-parsing-none
+  insecureHTTPParser: undefined, // default
+
+  // transitional options for backward compatibility that may be removed in the newer versions
+  transitional: {
+    // silent JSON parsing mode
+    // `true`  - ignore JSON parsing errors and set response.data to null if parsing failed (old behaviour)
+    // `false` - throw SyntaxError if JSON parsing failed (Note: responseType must be set to 'json')
+    silentJSONParsing: true, // default value for the current Axios version
+
+    // try to parse the response string as JSON even if `responseType` is not 'json'
+    forcedJSONParsing: true,
+
+    // throw ETIMEDOUT error instead of generic ECONNABORTED on request timeouts
+    clarifyTimeoutError: false,
+  },
+
+  env: {
+    // The FormData class to be used to automatically serialize the payload into a FormData object
+    FormData: window?.FormData || global?.FormData
+  },
+
+  formSerializer: {
+      visitor: (value, key, path, helpers) => {}; // custom visitor function to serialize form values
+      dots: boolean; // use dots instead of brackets format
+      metaTokens: boolean; // keep special endings like {} in parameter key
+      indexes: boolean; // array indexes format null - no brackets, false - empty brackets, true - brackets with indexes
+  },
+
+  // http adapter only (node.js)
+  maxRate: [
+    100 * 1024, // 100KB/s upload limit,
+    100 * 1024  // 100KB/s download limit
+  ]
+}
+```
+
+## Response Schema
+
+The response for a request contains the following information.
+
+```js
+{
+  // `data` is the response that was provided by the server
+  data: {},
+
+  // `status` is the HTTP status code from the server response
+  status: 200,
+
+  // `statusText` is the HTTP status message from the server response
+  statusText: 'OK',
+
+  // `headers` the HTTP headers that the server responded with
+  // All header names are lowercase and can be accessed using the bracket notation.
+  // Example: `response.headers['content-type']`
+  headers: {},
+
+  // `config` is the config that was provided to `axios` for the request
+  config: {},
+
+  // `request` is the request that generated this response
+  // It is the last ClientRequest instance in node.js (in redirects)
+  // and an XMLHttpRequest instance in the browser
+  request: {}
+}
+```
+
+When using `then`, you will receive the response as follows:
+
+```js
+axios.get('/user/12345')
+  .then(function (response) {
+    console.log(response.data);
+    console.log(response.status);
+    console.log(response.statusText);
+    console.log(response.headers);
+    console.log(response.config);
+  });
+```
+
+When using `catch`, or passing a [rejection callback](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/then) as second parameter of `then`, the response will be available through the `error` object as explained in the [Handling Errors](#handling-errors) section.
+
+## Config Defaults
+
+You can specify config defaults that will be applied to every request.
+
+### Global axios defaults
+
+```js
+axios.defaults.baseURL = 'https://api.example.com';
+
+// Important: If axios is used with multiple domains, the AUTH_TOKEN will be sent to all of them.
+// See below for an example using Custom instance defaults instead.
+axios.defaults.headers.common['Authorization'] = AUTH_TOKEN;
+
+axios.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded';
+```
+
+### Custom instance defaults
+
+```js
+// Set config defaults when creating the instance
+const instance = axios.create({
+  baseURL: 'https://api.example.com'
+});
+
+// Alter defaults after instance has been created
+instance.defaults.headers.common['Authorization'] = AUTH_TOKEN;
+```
+
+### Config order of precedence
+
+Config will be merged with an order of precedence. The order is library defaults found in [lib/defaults.js](https://github.com/axios/axios/blob/master/lib/defaults/index.js#L28), then `defaults` property of the instance, and finally `config` argument for the request. The latter will take precedence over the former. Here's an example.
+
+```js
+// Create an instance using the config defaults provided by the library
+// At this point the timeout config value is `0` as is the default for the library
+const instance = axios.create();
+
+// Override timeout default for the library
+// Now all requests using this instance will wait 2.5 seconds before timing out
+instance.defaults.timeout = 2500;
+
+// Override timeout for this request as it's known to take a long time
+instance.get('/longRequest', {
+  timeout: 5000
+});
+```
+
+## Interceptors
+
+You can intercept requests or responses before they are handled by `then` or `catch`.
+
+```js
+// Add a request interceptor
+axios.interceptors.request.use(function (config) {
+    // Do something before request is sent
+    return config;
+  }, function (error) {
+    // Do something with request error
+    return Promise.reject(error);
+  });
+
+// Add a response interceptor
+axios.interceptors.response.use(function (response) {
+    // Any status code that lie within the range of 2xx cause this function to trigger
+    // Do something with response data
+    return response;
+  }, function (error) {
+    // Any status codes that falls outside the range of 2xx cause this function to trigger
+    // Do something with response error
+    return Promise.reject(error);
+  });
+```
+
+If you need to remove an interceptor later you can.
+
+```js
+const myInterceptor = axios.interceptors.request.use(function () {/*...*/});
+axios.interceptors.request.eject(myInterceptor);
+```
+
+You can also clear all interceptors for requests or responses.
+```js
+const instance = axios.create();
+instance.interceptors.request.use(function () {/*...*/});
+instance.interceptors.request.clear(); // Removes interceptors from requests
+instance.interceptors.response.use(function () {/*...*/});
+instance.interceptors.response.clear(); // Removes interceptors from responses
+```
+
+You can add interceptors to a custom instance of axios.
+
+```js
+const instance = axios.create();
+instance.interceptors.request.use(function () {/*...*/});
+```
+
+When you add request interceptors, they are presumed to be asynchronous by default. This can cause a delay
+in the execution of your axios request when the main thread is blocked (a promise is created under the hood for
+the interceptor and your request gets put on the bottom of the call stack). If your request interceptors are synchronous you can add a flag
+to the options object that will tell axios to run the code synchronously and avoid any delays in request execution.
+
+```js
+axios.interceptors.request.use(function (config) {
+  config.headers.test = 'I am only a header!';
+  return config;
+}, null, { synchronous: true });
+```
+
+If you want to execute a particular interceptor based on a runtime check,
+you can add a `runWhen` function to the options object. The request interceptor will not be executed **if and only if** the return
+of `runWhen` is `false`. The function will be called with the config
+object (don't forget that you can bind your own arguments to it as well.) This can be handy when you have an
+asynchronous request interceptor that only needs to run at certain times.
+
+```js
+function onGetCall(config) {
+  return config.method === 'get';
+}
+axios.interceptors.request.use(function (config) {
+  config.headers.test = 'special get headers';
+  return config;
+}, null, { runWhen: onGetCall });
+```
+
+> **Note:** options parameter(having `synchronous` and `runWhen` properties) is only supported for request interceptors at the moment.
+
+### Multiple Interceptors
+
+Given you add multiple response interceptors
+and when the response was fulfilled
+- then each interceptor is executed
+- then they are executed in the order they were added
+- then only the last interceptor's result is returned
+- then every interceptor receives the result of its predecessor
+- and when the fulfillment-interceptor throws
+    - then the following fulfillment-interceptor is not called
+    - then the following rejection-interceptor is called
+    - once caught, another following fulfill-interceptor is called again (just like in a promise chain).
+
+Read [the interceptor tests](./test/specs/interceptors.spec.js) for seeing all this in code.
+
+## Error Types
+
+There are many different axios error messages that can appear that can provide basic information about the specifics of the error and where opportunities may lie in debugging.
+
+The general structure of axios errors is as follows:
+| Property  | Definition  |
+| -------- | ----------  |
+| message  | A quick summary of the error message and the status it failed with. |
+| name     | This defines where the error originated from. For axios, it will always be an 'AxiosError'. |
+| stack    | Provides the stack trace of the error. | 
+| config   | An axios config object with specific instance configurations defined by the user from when the request was made |
+| code     | Represents an axios identified error. The table below lists out specific definitions for internal axios error.  |
+| status   | HTTP response status code. See [here](https://en.wikipedia.org/wiki/List_of_HTTP_status_codes) for common HTTP response status code meanings. 
+
+Below is a list of potential axios identified error
+| Code  |  Definition   |
+| -------- | ----------  |
+| ERR_BAD_OPTION_VALUE | Invalid or unsupported value provided in axios configuration. |
+| ERR_BAD_OPTION | Invalid option provided in axios configuration. |
+| ECONNABORTED | Request timed out due to exceeding timeout specified in axios configuration. |
+| ETIMEDOUT | Request timed out due to exceeding default axios timelimit. |
+| ERR_NETWORK | Network-related issue.
+| ERR_FR_TOO_MANY_REDIRECTS | Request is redirected too many times; exceeds max redirects specified in axios configuration.
+| ERR_DEPRECATED | Deprecated feature or method used in axios. 
+| ERR_BAD_RESPONSE | Response cannot be parsed properly or is in an unexpected format. 
+| ERR_BAD_REQUEST | Requested has unexpected format or missing required parameters. |
+| ERR_CANCELED | Feature or method is canceled explicitly by the user.   
+| ERR_NOT_SUPPORT | Feature or method not supported in the current axios environment. 
+| ERR_INVALID_URL | Invalid URL provided for axios request.
+
+## Handling Errors
+
+the default behavior is to reject every response that returns with a status code that falls out of the range of 2xx and treat it as an error.
+
+```js
+axios.get('/user/12345')
+  .catch(function (error) {
+    if (error.response) {
+      // The request was made and the server responded with a status code
+      // that falls out of the range of 2xx
+      console.log(error.response.data);
+      console.log(error.response.status);
+      console.log(error.response.headers);
+    } else if (error.request) {
+      // The request was made but no response was received
+      // `error.request` is an instance of XMLHttpRequest in the browser and an instance of
+      // http.ClientRequest in node.js
+      console.log(error.request);
+    } else {
+      // Something happened in setting up the request that triggered an Error
+      console.log('Error', error.message);
+    }
+    console.log(error.config);
+  });
+```
+
+Using the `validateStatus` config option, you can override the default condition (status >= 200 && status < 300) and define HTTP code(s) that should throw an error.
+
+```js
+axios.get('/user/12345', {
+  validateStatus: function (status) {
+    return status < 500; // Resolve only if the status code is less than 500
+  }
+})
+```
+
+Using `toJSON` you get an object with more information about the HTTP error.
+
+```js
+axios.get('/user/12345')
+  .catch(function (error) {
+    console.log(error.toJSON());
+  });
+```
+
+## Cancellation
+
+### AbortController
+
+Starting from `v0.22.0` Axios supports AbortController to cancel requests in fetch API way:
+
+```js
+const controller = new AbortController();
+
+axios.get('/foo/bar', {
+   signal: controller.signal
+}).then(function(response) {
+   //...
+});
+// cancel the request
+controller.abort()
+```
+
+### CancelToken `👎deprecated`
+
+You can also cancel a request using a *CancelToken*.
+
+> The axios cancel token API is based on the withdrawn [cancellable promises proposal](https://github.com/tc39/proposal-cancelable-promises).
+
+> This API is deprecated since v0.22.0 and shouldn't be used in new projects
+
+You can create a cancel token using the `CancelToken.source` factory as shown below:
+
+```js
+const CancelToken = axios.CancelToken;
+const source = CancelToken.source();
+
+axios.get('/user/12345', {
+  cancelToken: source.token
+}).catch(function (thrown) {
+  if (axios.isCancel(thrown)) {
+    console.log('Request canceled', thrown.message);
+  } else {
+    // handle error
+  }
+});
+
+axios.post('/user/12345', {
+  name: 'new name'
+}, {
+  cancelToken: source.token
+})
+
+// cancel the request (the message parameter is optional)
+source.cancel('Operation canceled by the user.');
+```
+
+You can also create a cancel token by passing an executor function to the `CancelToken` constructor:
+
+```js
+const CancelToken = axios.CancelToken;
+let cancel;
+
+axios.get('/user/12345', {
+  cancelToken: new CancelToken(function executor(c) {
+    // An executor function receives a cancel function as a parameter
+    cancel = c;
+  })
+});
+
+// cancel the request
+cancel();
+```
+
+> **Note:** you can cancel several requests with the same cancel token/abort controller.
+> If a cancellation token is already cancelled at the moment of starting an Axios request, then the request is cancelled immediately, without any attempts to make a real request.
+
+> During the transition period, you can use both cancellation APIs, even for the same request:
+
+## Using `application/x-www-form-urlencoded` format
+
+### URLSearchParams
+
+By default, axios serializes JavaScript objects to `JSON`. To send data in the [`application/x-www-form-urlencoded` format](https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/POST) instead, you can use the [`URLSearchParams`](https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams) API, which is [supported](http://www.caniuse.com/#feat=urlsearchparams) in the vast majority of browsers,and [ Node](https://nodejs.org/api/url.html#url_class_urlsearchparams) starting with v10 (released in 2018).
+
+```js
+const params = new URLSearchParams({ foo: 'bar' });
+params.append('extraparam', 'value');
+axios.post('/foo', params);
+```
+
+### Query string (Older browsers)
+
+For compatibility with very old browsers, there is a [polyfill](https://github.com/WebReflection/url-search-params) available (make sure to polyfill the global environment).
+
+Alternatively, you can encode data using the [`qs`](https://github.com/ljharb/qs) library:
+
+```js
+const qs = require('qs');
+axios.post('/foo', qs.stringify({ 'bar': 123 }));
+```
+
+Or in another way (ES6),
+
+```js
+import qs from 'qs';
+const data = { 'bar': 123 };
+const options = {
+  method: 'POST',
+  headers: { 'content-type': 'application/x-www-form-urlencoded' },
+  data: qs.stringify(data),
+  url,
+};
+axios(options);
+```
+
+### Older Node.js versions
+
+For older Node.js engines, you can use the [`querystring`](https://nodejs.org/api/querystring.html) module as follows:
+
+```js
+const querystring = require('querystring');
+axios.post('https://something.com/', querystring.stringify({ foo: 'bar' }));
+```
+
+You can also use the [`qs`](https://github.com/ljharb/qs) library.
+
+> **Note**: The `qs` library is preferable if you need to stringify nested objects, as the `querystring` method has [known issues](https://github.com/nodejs/node-v0.x-archive/issues/1665) with that use case.
+
+### 🆕 Automatic serialization to URLSearchParams
+
+Axios will automatically serialize the data object to urlencoded format if the content-type header is set to "application/x-www-form-urlencoded".
+
+```js
+const data = {
+  x: 1,
+  arr: [1, 2, 3],
+  arr2: [1, [2], 3],
+  users: [{name: 'Peter', surname: 'Griffin'}, {name: 'Thomas', surname: 'Anderson'}],
+};
+
+await axios.postForm('https://postman-echo.com/post', data,
+  {headers: {'content-type': 'application/x-www-form-urlencoded'}}
+);
+```
+
+The server will handle it as:
+
+```js
+  {
+    x: '1',
+    'arr[]': [ '1', '2', '3' ],
+    'arr2[0]': '1',
+    'arr2[1][0]': '2',
+    'arr2[2]': '3',
+    'arr3[]': [ '1', '2', '3' ],
+    'users[0][name]': 'Peter',
+    'users[0][surname]': 'griffin',
+    'users[1][name]': 'Thomas',
+    'users[1][surname]': 'Anderson'
+  }
+````
+
+If your backend body-parser (like `body-parser` of `express.js`) supports nested objects decoding, you will get the same object on the server-side automatically
+
+```js
+  var app = express();
+
+  app.use(bodyParser.urlencoded({ extended: true })); // support encoded bodies
+
+  app.post('/', function (req, res, next) {
+     // echo body as JSON
+     res.send(JSON.stringify(req.body));
+  });
+
+  server = app.listen(3000);
+```
+
+## Using `multipart/form-data` format
+
+### FormData
+
+To send the data as a `multipart/formdata` you need to pass a formData instance as a payload.
+Setting the `Content-Type` header is not required as Axios guesses it based on the payload type.
+
+```js
+const formData = new FormData();
+formData.append('foo', 'bar');
+
+axios.post('https://httpbin.org/post', formData);
+```
+
+In node.js, you can use the [`form-data`](https://github.com/form-data/form-data) library as follows:
+
+```js
+const FormData = require('form-data');
+
+const form = new FormData();
+form.append('my_field', 'my value');
+form.append('my_buffer', new Buffer(10));
+form.append('my_file', fs.createReadStream('/foo/bar.jpg'));
+
+axios.post('https://example.com', form)
+```
+
+### 🆕 Automatic serialization to FormData
+
+Starting from `v0.27.0`, Axios supports automatic object serialization to a FormData object if the request `Content-Type`
+header is set to `multipart/form-data`.
+
+The following request will submit the data in a FormData format (Browser & Node.js):
+
+```js
+import axios from 'axios';
+
+axios.post('https://httpbin.org/post', {x: 1}, {
+  headers: {
+    'Content-Type': 'multipart/form-data'
+  }
+}).then(({data}) => console.log(data));
+```
+
+In the `node.js` build, the ([`form-data`](https://github.com/form-data/form-data)) polyfill is used by default.
+
+You can overload the FormData class by setting the `env.FormData` config variable,
+but you probably won't need it in most cases:
+
+```js
+const axios = require('axios');
+var FormData = require('form-data');
+
+axios.post('https://httpbin.org/post', {x: 1, buf: new Buffer(10)}, {
+  headers: {
+    'Content-Type': 'multipart/form-data'
+  }
+}).then(({data}) => console.log(data));
+```
+
+Axios FormData serializer supports some special endings to perform the following operations:
+
+- `{}` - serialize the value with JSON.stringify
+- `[]` - unwrap the array-like object as separate fields with the same key
+
+> **Note**: unwrap/expand operation will be used by default on arrays and FileList objects
+
+FormData serializer supports additional options via `config.formSerializer: object` property to handle rare cases:
+
+- `visitor: Function` - user-defined visitor function that will be called recursively to serialize the data object
+to a `FormData` object by following custom rules.
+
+- `dots: boolean = false` - use dot notation instead of brackets to serialize arrays and objects;
+
+- `metaTokens: boolean = true` - add the special ending (e.g `user{}: '{"name": "John"}'`) in the FormData key.
+The back-end body-parser could potentially use this meta-information to automatically parse the value as JSON.
+
+- `indexes: null|false|true = false` - controls how indexes will be added to unwrapped keys of `flat` array-like objects
+
+    - `null` - don't add brackets (`arr: 1`, `arr: 2`, `arr: 3`)
+    - `false`(default) - add empty brackets (`arr[]: 1`, `arr[]: 2`, `arr[]: 3`)
+    - `true` - add brackets with indexes  (`arr[0]: 1`, `arr[1]: 2`, `arr[2]: 3`)
+
+Let's say we have an object like this one:
+
+```js
+const obj = {
+  x: 1,
+  arr: [1, 2, 3],
+  arr2: [1, [2], 3],
+  users: [{name: 'Peter', surname: 'Griffin'}, {name: 'Thomas', surname: 'Anderson'}],
+  'obj2{}': [{x:1}]
+};
+```
+
+The following steps will be executed by the Axios serializer internally:
+
+```js
+const formData = new FormData();
+formData.append('x', '1');
+formData.append('arr[]', '1');
+formData.append('arr[]', '2');
+formData.append('arr[]', '3');
+formData.append('arr2[0]', '1');
+formData.append('arr2[1][0]', '2');
+formData.append('arr2[2]', '3');
+formData.append('users[0][name]', 'Peter');
+formData.append('users[0][surname]', 'Griffin');
+formData.append('users[1][name]', 'Thomas');
+formData.append('users[1][surname]', 'Anderson');
+formData.append('obj2{}', '[{"x":1}]');
+```
+
+Axios supports the following shortcut methods: `postForm`, `putForm`, `patchForm`
+which are just the corresponding http methods with the `Content-Type` header preset to `multipart/form-data`.
+
+## Files Posting
+
+You can easily submit a single file:
+
+```js
+await axios.postForm('https://httpbin.org/post', {
+  'myVar' : 'foo',
+  'file': document.querySelector('#fileInput').files[0]
+});
+```
+
+or multiple files as `multipart/form-data`:
+
+```js
+await axios.postForm('https://httpbin.org/post', {
+  'files[]': document.querySelector('#fileInput').files
+});
+```
+
+`FileList` object can be passed directly:
+
+```js
+await axios.postForm('https://httpbin.org/post', document.querySelector('#fileInput').files)
+```
+
+All files will be sent with the same field names: `files[]`.
+
+## 🆕 HTML Form Posting (browser)
+
+Pass HTML Form element as a payload to submit it as `multipart/form-data` content.
+
+```js
+await axios.postForm('https://httpbin.org/post', document.querySelector('#htmlForm'));
+```
+
+`FormData` and `HTMLForm` objects can also be posted as `JSON` by explicitly setting the `Content-Type` header to `application/json`:
+
+```js
+await axios.post('https://httpbin.org/post', document.querySelector('#htmlForm'), {
+  headers: {
+    'Content-Type': 'application/json'
+  }
+})
+```
+
+For example, the Form
+
+```html
+<form id="form">
+  <input type="text" name="foo" value="1">
+  <input type="text" name="deep.prop" value="2">
+  <input type="text" name="deep prop spaced" value="3">
+  <input type="text" name="baz" value="4">
+  <input type="text" name="baz" value="5">
+
+  <select name="user.age">
+    <option value="value1">Value 1</option>
+    <option value="value2" selected>Value 2</option>
+    <option value="value3">Value 3</option>
+  </select>
+
+  <input type="submit" value="Save">
+</form>
+```
+
+will be submitted as the following JSON object:
+
+```js
+{
+  "foo": "1",
+  "deep": {
+    "prop": {
+      "spaced": "3"
+    }
+  },
+  "baz": [
+    "4",
+    "5"
+  ],
+  "user": {
+    "age": "value2"
+  }
+}
+````
+
+Sending `Blobs`/`Files` as JSON (`base64`) is not currently supported.
+
+## 🆕 Progress capturing
+
+Axios supports both browser and node environments to capture request upload/download progress.
+The frequency of progress events is forced to be limited to `3` times per second.
+
+```js    
+await axios.post(url, data, {
+  onUploadProgress: function (axiosProgressEvent) {
+    /*{
+      loaded: number;
+      total?: number;
+      progress?: number; // in range [0..1]
+      bytes: number; // how many bytes have been transferred since the last trigger (delta)
+      estimated?: number; // estimated time in seconds
+      rate?: number; // upload speed in bytes
+      upload: true; // upload sign
+    }*/
+  },
+
+  onDownloadProgress: function (axiosProgressEvent) {
+    /*{
+      loaded: number;
+      total?: number;
+      progress?: number;
+      bytes: number; 
+      estimated?: number;
+      rate?: number; // download speed in bytes
+      download: true; // download sign
+    }*/
+  }
+});  
+```
+
+You can also track stream upload/download progress in node.js:
+
+```js
+const {data} = await axios.post(SERVER_URL, readableStream, {
+   onUploadProgress: ({progress}) => {
+     console.log((progress * 100).toFixed(2));
+   },
+  
+   headers: {
+    'Content-Length': contentLength
+   },
+
+   maxRedirects: 0 // avoid buffering the entire stream
+});
+````
+
+> **Note:**
+> Capturing FormData upload progress is not currently supported in node.js environments.
+
+> **⚠️ Warning**
+> It is recommended to disable redirects by setting maxRedirects: 0 to upload the stream in the **node.js** environment,
+> as follow-redirects package will buffer the entire stream in RAM without following the "backpressure" algorithm.
+
+
+## 🆕 Rate limiting
+
+Download and upload rate limits can only be set for the http adapter (node.js):
+
+```js
+const {data} = await axios.post(LOCAL_SERVER_URL, myBuffer, {
+  onUploadProgress: ({progress, rate}) => {
+    console.log(`Upload [${(progress*100).toFixed(2)}%]: ${(rate / 1024).toFixed(2)}KB/s`)
+  },
+   
+  maxRate: [100 * 1024], // 100KB/s limit
+});
+```
+
+## 🆕 AxiosHeaders
+
+Axios has its own `AxiosHeaders` class to manipulate headers using a Map-like API that guarantees caseless work.
+Although HTTP is case-insensitive in headers, Axios will retain the case of the original header for stylistic reasons
+and for a workaround when servers mistakenly consider the header's case.
+The old approach of directly manipulating headers object is still available, but deprecated and not recommended for future usage.
+
+### Working with headers
+
+An AxiosHeaders object instance can contain different types of internal values. that control setting and merging logic.
+The final headers object with string values is obtained by Axios by calling the `toJSON` method.
+
+> Note: By JSON here we mean an object consisting only of string values intended to be sent over the network.
+
+The header value can be one of the following types:
+- `string` - normal string value that will be sent to the server
+- `null` - skip header when rendering to JSON
+- `false` - skip header when rendering to JSON, additionally indicates that `set` method must be called with `rewrite` option set to `true`
+  to overwrite this value (Axios uses this internally to allow users to opt out of installing certain headers like `User-Agent` or `Content-Type`)
+- `undefined` - value is not set
+
+> Note: The header value is considered set if it is not equal to undefined.
+
+The headers object is always initialized inside interceptors and transformers:
+
+```ts
+  axios.interceptors.request.use((request: InternalAxiosRequestConfig) => {
+      request.headers.set('My-header', 'value');
+
+      request.headers.set({
+        "My-set-header1": "my-set-value1",
+        "My-set-header2": "my-set-value2"
+      });
+      
+      request.headers.set('User-Agent', false); // disable subsequent setting the header by Axios
+
+      request.headers.setContentType('text/plain');
+    
+      request.headers['My-set-header2'] = 'newValue' // direct access is deprecated
+    
+      return request;
+    }
+  );
+````
+
+You can iterate over an `AxiosHeaders` instance using a `for...of` statement:
+
+````js
+const headers = new AxiosHeaders({
+  foo: '1',
+  bar: '2',
+  baz: '3'
+});
+
+for(const [header, value] of headers) {
+  console.log(header, value);
+}
+
+// foo 1
+// bar 2
+// baz 3
+````
+
+### new AxiosHeaders(headers?)
+
+Constructs a new `AxiosHeaders` instance. 
+
+```
+constructor(headers?: RawAxiosHeaders | AxiosHeaders | string);
+```
+
+If the headers object is a string, it will be parsed as RAW HTTP headers.
+
+````js
+const headers = new AxiosHeaders(`
+Host: www.bing.com
+User-Agent: curl/7.54.0
+Accept: */*`);
+
+console.log(headers);
+
+// Object [AxiosHeaders] {
+//   host: 'www.bing.com',
+//   'user-agent': 'curl/7.54.0',
+//   accept: '*/*'
+// }
+````
+
+### AxiosHeaders#set
+
+```ts
+set(headerName, value: Axios, rewrite?: boolean);
+set(headerName, value, rewrite?: (this: AxiosHeaders, value: string, name: string, headers: RawAxiosHeaders) => boolean);
+set(headers?: RawAxiosHeaders | AxiosHeaders | string, rewrite?: boolean);
+```
+
+The `rewrite` argument controls the overwriting behavior:
+- `false` - do not overwrite if header's value is set (is not `undefined`)
+- `undefined` (default) - overwrite the header unless its value is set to `false`
+- `true` - rewrite anyway
+
+The option can also accept a user-defined function that determines whether the value should be overwritten or not.
+
+Returns `this`.
+
+### AxiosHeaders#get(header)
+
+```
+  get(headerName: string, matcher?: true | AxiosHeaderMatcher): AxiosHeaderValue;
+  get(headerName: string, parser: RegExp): RegExpExecArray | null;
+````
+
+Returns the internal value of the header. It can take an extra argument to parse the header's value with `RegExp.exec`,
+matcher function or internal key-value parser.
+
+```ts
+const headers = new AxiosHeaders({
+  'Content-Type': 'multipart/form-data; boundary=Asrf456BGe4h'
+});
+
+console.log(headers.get('Content-Type')); 
+// multipart/form-data; boundary=Asrf456BGe4h
+
+console.log(headers.get('Content-Type', true)); // parse key-value pairs from a string separated with \s,;= delimiters:
+// [Object: null prototype] {
+//   'multipart/form-data': undefined,
+//    boundary: 'Asrf456BGe4h'
+// }
+
+
+console.log(headers.get('Content-Type', (value, name, headers) => {
+  return String(value).replace(/a/g, 'ZZZ');
+}));
+// multipZZZrt/form-dZZZtZZZ; boundZZZry=Asrf456BGe4h
+
+console.log(headers.get('Content-Type', /boundary=(\w+)/)?.[0]);
+// boundary=Asrf456BGe4h
+
+```
+
+Returns the value of the header.
+
+### AxiosHeaders#has(header, matcher?)
+
+```
+has(header: string, matcher?: AxiosHeaderMatcher): boolean;
+```
+
+Returns `true` if the header is set (has no `undefined` value).
+
+### AxiosHeaders#delete(header, matcher?)
+
+```
+delete(header: string | string[], matcher?: AxiosHeaderMatcher): boolean;
+```
+
+Returns `true` if at least one header has been removed.
+
+### AxiosHeaders#clear(matcher?)
+
+```
+clear(matcher?: AxiosHeaderMatcher): boolean;
+```
+
+Removes all headers. 
+Unlike the `delete` method matcher, this optional matcher will be used to match against the header name rather than the value.
+
+```ts
+const headers = new AxiosHeaders({
+  'foo': '1',
+  'x-foo': '2',
+  'x-bar': '3',
+});
+
+console.log(headers.clear(/^x-/)); // true
+
+console.log(headers.toJSON()); // [Object: null prototype] { foo: '1' }
+```
+
+Returns `true` if at least one header has been cleared.
+
+### AxiosHeaders#normalize(format);
+
+If the headers object was changed directly, it can have duplicates with the same name but in different cases.
+This method normalizes the headers object by combining duplicate keys into one.
+Axios uses this method internally after calling each interceptor.
+Set `format` to true for converting headers name to lowercase and capitalize the initial letters (`cOntEnt-type` => `Content-Type`)
+
+```js
+const headers = new AxiosHeaders({
+  'foo': '1',
+});
+
+headers.Foo = '2';
+headers.FOO = '3';
+
+console.log(headers.toJSON()); // [Object: null prototype] { foo: '1', Foo: '2', FOO: '3' }
+console.log(headers.normalize().toJSON()); // [Object: null prototype] { foo: '3' }
+console.log(headers.normalize(true).toJSON()); // [Object: null prototype] { Foo: '3' }
+```
+
+Returns `this`.
+
+### AxiosHeaders#concat(...targets)
+
+```
+concat(...targets: Array<AxiosHeaders | RawAxiosHeaders | string | undefined | null>): AxiosHeaders;
+```
+
+Merges the instance with targets into a new `AxiosHeaders` instance. If the target is a string, it will be parsed as RAW HTTP headers.
+
+Returns a new `AxiosHeaders` instance.
+
+### AxiosHeaders#toJSON(asStrings?)
+
+````
+toJSON(asStrings?: boolean): RawAxiosHeaders;
+````
+
+Resolve all internal headers values into a new null prototype object. 
+Set `asStrings` to true to resolve arrays as a string containing all elements, separated by commas.
+
+### AxiosHeaders.from(thing?)
+
+````
+from(thing?: AxiosHeaders | RawAxiosHeaders | string): AxiosHeaders;
+````
+
+Returns a new `AxiosHeaders` instance created from the raw headers passed in,
+or simply returns the given headers object if it's an `AxiosHeaders` instance.
+
+### AxiosHeaders.concat(...targets)
+
+````
+concat(...targets: Array<AxiosHeaders | RawAxiosHeaders | string | undefined | null>): AxiosHeaders;
+````
+
+Returns a new `AxiosHeaders` instance created by merging the target objects.
+
+### Shortcuts
+
+The following shortcuts are available:
+
+- `setContentType`, `getContentType`, `hasContentType`
+
+- `setContentLength`, `getContentLength`, `hasContentLength`
+
+- `setAccept`, `getAccept`, `hasAccept`
+
+- `setUserAgent`, `getUserAgent`, `hasUserAgent`
+
+- `setContentEncoding`, `getContentEncoding`, `hasContentEncoding`
+
+## 🔥 Fetch adapter
+
+Fetch adapter was introduced in `v1.7.0`. By default, it will be used if `xhr` and `http` adapters are not available in the build,
+or not supported by the environment.
+To use it by default, it must be selected explicitly:
+
+```js
+const {data} = axios.get(url, {
+  adapter: 'fetch' // by default ['xhr', 'http', 'fetch']
+})
+```
+
+You can create a separate instance for this:
+
+```js
+const fetchAxios = axios.create({
+  adapter: 'fetch'
+});
+
+const {data} = fetchAxios.get(url);
+```
+
+The adapter supports the same functionality as `xhr` adapter, **including upload and download progress capturing**. 
+Also, it supports additional response types such as `stream` and `formdata` (if supported by the environment).
+
+## Semver
+
+Until axios reaches a `1.0` release, breaking changes will be released with a new minor version. For example `0.5.1`, and `0.5.4` will have the same API, but `0.6.0` will have breaking changes.
+
+## Promises
+
+axios depends on a native ES6 Promise implementation to be [supported](https://caniuse.com/promises).
+If your environment doesn't support ES6 Promises, you can [polyfill](https://github.com/jakearchibald/es6-promise).
+
+## TypeScript
+
+axios includes [TypeScript](https://typescriptlang.org) definitions and a type guard for axios errors.
+
+```typescript
+let user: User = null;
+try {
+  const { data } = await axios.get('/user?ID=12345');
+  user = data.userDetails;
+} catch (error) {
+  if (axios.isAxiosError(error)) {
+    handleAxiosError(error);
+  } else {
+    handleUnexpectedError(error);
+  }
+}
+```
+
+Because axios dual publishes with an ESM default export and a CJS `module.exports`, there are some caveats.
+The recommended setting is to use `"moduleResolution": "node16"` (this is implied by `"module": "node16"`). Note that this requires TypeScript 4.7 or greater.
+If use ESM, your settings should be fine.
+If you compile TypeScript to CJS and you can’t use `"moduleResolution": "node 16"`, you have to enable `esModuleInterop`.
+If you use TypeScript to type check CJS JavaScript code, your only option is to use `"moduleResolution": "node16"`.
+
+## Online one-click setup
+
+You can use Gitpod, an online IDE(which is free for Open Source) for contributing or running the examples online.
+
+[![Open in Gitpod](https://gitpod.io/button/open-in-gitpod.svg)](https://gitpod.io/#https://github.com/axios/axios/blob/main/examples/server.js)
+
+
+## Resources
+
+* [Changelog](https://github.com/axios/axios/blob/v1.x/CHANGELOG.md)
+* [Ecosystem](https://github.com/axios/axios/blob/v1.x/ECOSYSTEM.md)
+* [Contributing Guide](https://github.com/axios/axios/blob/v1.x/CONTRIBUTING.md)
+* [Code of Conduct](https://github.com/axios/axios/blob/v1.x/CODE_OF_CONDUCT.md)
+
+## Credits
+
+axios is heavily inspired by the [$http service](https://docs.angularjs.org/api/ng/service/$http) provided in [AngularJS](https://angularjs.org/). Ultimately axios is an effort to provide a standalone `$http`-like service for use outside of AngularJS.
+
+## License
+
+[MIT](LICENSE)
diff --git a/backend/node_modules/axios/SECURITY.md b/backend/node_modules/axios/SECURITY.md
new file mode 100644
index 0000000..a5a2b7d
--- /dev/null
+++ b/backend/node_modules/axios/SECURITY.md
@@ -0,0 +1,6 @@
+# Reporting a Vulnerability
+
+If you discover a security vulnerability in axios please disclose it via [our huntr page](https://huntr.dev/repos/axios/axios/). Bounty eligibility, CVE assignment, response times and past reports are all there.
+
+
+Thank you for improving the security of axios.
diff --git a/backend/node_modules/axios/dist/axios.js b/backend/node_modules/axios/dist/axios.js
new file mode 100644
index 0000000..1fe9c64
--- /dev/null
+++ b/backend/node_modules/axios/dist/axios.js
@@ -0,0 +1,4288 @@
+// Axios v1.7.9 Copyright (c) 2024 Matt Zabriskie and contributors
+(function (global, factory) {
+  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+  typeof define === 'function' && define.amd ? define(factory) :
+  (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.axios = factory());
+})(this, (function () { 'use strict';
+
+  function _AsyncGenerator(e) {
+    var r, t;
+    function resume(r, t) {
+      try {
+        var n = e[r](t),
+          o = n.value,
+          u = o instanceof _OverloadYield;
+        Promise.resolve(u ? o.v : o).then(function (t) {
+          if (u) {
+            var i = "return" === r ? "return" : "next";
+            if (!o.k || t.done) return resume(i, t);
+            t = e[i](t).value;
+          }
+          settle(n.done ? "return" : "normal", t);
+        }, function (e) {
+          resume("throw", e);
+        });
+      } catch (e) {
+        settle("throw", e);
+      }
+    }
+    function settle(e, n) {
+      switch (e) {
+        case "return":
+          r.resolve({
+            value: n,
+            done: !0
+          });
+          break;
+        case "throw":
+          r.reject(n);
+          break;
+        default:
+          r.resolve({
+            value: n,
+            done: !1
+          });
+      }
+      (r = r.next) ? resume(r.key, r.arg) : t = null;
+    }
+    this._invoke = function (e, n) {
+      return new Promise(function (o, u) {
+        var i = {
+          key: e,
+          arg: n,
+          resolve: o,
+          reject: u,
+          next: null
+        };
+        t ? t = t.next = i : (r = t = i, resume(e, n));
+      });
+    }, "function" != typeof e.return && (this.return = void 0);
+  }
+  _AsyncGenerator.prototype["function" == typeof Symbol && Symbol.asyncIterator || "@@asyncIterator"] = function () {
+    return this;
+  }, _AsyncGenerator.prototype.next = function (e) {
+    return this._invoke("next", e);
+  }, _AsyncGenerator.prototype.throw = function (e) {
+    return this._invoke("throw", e);
+  }, _AsyncGenerator.prototype.return = function (e) {
+    return this._invoke("return", e);
+  };
+  function _OverloadYield(t, e) {
+    this.v = t, this.k = e;
+  }
+  function _asyncGeneratorDelegate(t) {
+    var e = {},
+      n = !1;
+    function pump(e, r) {
+      return n = !0, r = new Promise(function (n) {
+        n(t[e](r));
+      }), {
+        done: !1,
+        value: new _OverloadYield(r, 1)
+      };
+    }
+    return e["undefined" != typeof Symbol && Symbol.iterator || "@@iterator"] = function () {
+      return this;
+    }, e.next = function (t) {
+      return n ? (n = !1, t) : pump("next", t);
+    }, "function" == typeof t.throw && (e.throw = function (t) {
+      if (n) throw n = !1, t;
+      return pump("throw", t);
+    }), "function" == typeof t.return && (e.return = function (t) {
+      return n ? (n = !1, t) : pump("return", t);
+    }), e;
+  }
+  function _asyncIterator(r) {
+    var n,
+      t,
+      o,
+      e = 2;
+    for ("undefined" != typeof Symbol && (t = Symbol.asyncIterator, o = Symbol.iterator); e--;) {
+      if (t && null != (n = r[t])) return n.call(r);
+      if (o && null != (n = r[o])) return new AsyncFromSyncIterator(n.call(r));
+      t = "@@asyncIterator", o = "@@iterator";
+    }
+    throw new TypeError("Object is not async iterable");
+  }
+  function AsyncFromSyncIterator(r) {
+    function AsyncFromSyncIteratorContinuation(r) {
+      if (Object(r) !== r) return Promise.reject(new TypeError(r + " is not an object."));
+      var n = r.done;
+      return Promise.resolve(r.value).then(function (r) {
+        return {
+          value: r,
+          done: n
+        };
+      });
+    }
+    return AsyncFromSyncIterator = function (r) {
+      this.s = r, this.n = r.next;
+    }, AsyncFromSyncIterator.prototype = {
+      s: null,
+      n: null,
+      next: function () {
+        return AsyncFromSyncIteratorContinuation(this.n.apply(this.s, arguments));
+      },
+      return: function (r) {
+        var n = this.s.return;
+        return void 0 === n ? Promise.resolve({
+          value: r,
+          done: !0
+        }) : AsyncFromSyncIteratorContinuation(n.apply(this.s, arguments));
+      },
+      throw: function (r) {
+        var n = this.s.return;
+        return void 0 === n ? Promise.reject(r) : AsyncFromSyncIteratorContinuation(n.apply(this.s, arguments));
+      }
+    }, new AsyncFromSyncIterator(r);
+  }
+  function _awaitAsyncGenerator(e) {
+    return new _OverloadYield(e, 0);
+  }
+  function _iterableToArrayLimit(r, l) {
+    var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"];
+    if (null != t) {
+      var e,
+        n,
+        i,
+        u,
+        a = [],
+        f = !0,
+        o = !1;
+      try {
+        if (i = (t = t.call(r)).next, 0 === l) {
+          if (Object(t) !== t) return;
+          f = !1;
+        } else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0);
+      } catch (r) {
+        o = !0, n = r;
+      } finally {
+        try {
+          if (!f && null != t.return && (u = t.return(), Object(u) !== u)) return;
+        } finally {
+          if (o) throw n;
+        }
+      }
+      return a;
+    }
+  }
+  function ownKeys(e, r) {
+    var t = Object.keys(e);
+    if (Object.getOwnPropertySymbols) {
+      var o = Object.getOwnPropertySymbols(e);
+      r && (o = o.filter(function (r) {
+        return Object.getOwnPropertyDescriptor(e, r).enumerable;
+      })), t.push.apply(t, o);
+    }
+    return t;
+  }
+  function _objectSpread2(e) {
+    for (var r = 1; r < arguments.length; r++) {
+      var t = null != arguments[r] ? arguments[r] : {};
+      r % 2 ? ownKeys(Object(t), !0).forEach(function (r) {
+        _defineProperty(e, r, t[r]);
+      }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) {
+        Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r));
+      });
+    }
+    return e;
+  }
+  function _regeneratorRuntime() {
+    _regeneratorRuntime = function () {
+      return e;
+    };
+    var t,
+      e = {},
+      r = Object.prototype,
+      n = r.hasOwnProperty,
+      o = Object.defineProperty || function (t, e, r) {
+        t[e] = r.value;
+      },
+      i = "function" == typeof Symbol ? Symbol : {},
+      a = i.iterator || "@@iterator",
+      c = i.asyncIterator || "@@asyncIterator",
+      u = i.toStringTag || "@@toStringTag";
+    function define(t, e, r) {
+      return Object.defineProperty(t, e, {
+        value: r,
+        enumerable: !0,
+        configurable: !0,
+        writable: !0
+      }), t[e];
+    }
+    try {
+      define({}, "");
+    } catch (t) {
+      define = function (t, e, r) {
+        return t[e] = r;
+      };
+    }
+    function wrap(t, e, r, n) {
+      var i = e && e.prototype instanceof Generator ? e : Generator,
+        a = Object.create(i.prototype),
+        c = new Context(n || []);
+      return o(a, "_invoke", {
+        value: makeInvokeMethod(t, r, c)
+      }), a;
+    }
+    function tryCatch(t, e, r) {
+      try {
+        return {
+          type: "normal",
+          arg: t.call(e, r)
+        };
+      } catch (t) {
+        return {
+          type: "throw",
+          arg: t
+        };
+      }
+    }
+    e.wrap = wrap;
+    var h = "suspendedStart",
+      l = "suspendedYield",
+      f = "executing",
+      s = "completed",
+      y = {};
+    function Generator() {}
+    function GeneratorFunction() {}
+    function GeneratorFunctionPrototype() {}
+    var p = {};
+    define(p, a, function () {
+      return this;
+    });
+    var d = Object.getPrototypeOf,
+      v = d && d(d(values([])));
+    v && v !== r && n.call(v, a) && (p = v);
+    var g = GeneratorFunctionPrototype.prototype = Generator.prototype = Object.create(p);
+    function defineIteratorMethods(t) {
+      ["next", "throw", "return"].forEach(function (e) {
+        define(t, e, function (t) {
+          return this._invoke(e, t);
+        });
+      });
+    }
+    function AsyncIterator(t, e) {
+      function invoke(r, o, i, a) {
+        var c = tryCatch(t[r], t, o);
+        if ("throw" !== c.type) {
+          var u = c.arg,
+            h = u.value;
+          return h && "object" == typeof h && n.call(h, "__await") ? e.resolve(h.__await).then(function (t) {
+            invoke("next", t, i, a);
+          }, function (t) {
+            invoke("throw", t, i, a);
+          }) : e.resolve(h).then(function (t) {
+            u.value = t, i(u);
+          }, function (t) {
+            return invoke("throw", t, i, a);
+          });
+        }
+        a(c.arg);
+      }
+      var r;
+      o(this, "_invoke", {
+        value: function (t, n) {
+          function callInvokeWithMethodAndArg() {
+            return new e(function (e, r) {
+              invoke(t, n, e, r);
+            });
+          }
+          return r = r ? r.then(callInvokeWithMethodAndArg, callInvokeWithMethodAndArg) : callInvokeWithMethodAndArg();
+        }
+      });
+    }
+    function makeInvokeMethod(e, r, n) {
+      var o = h;
+      return function (i, a) {
+        if (o === f) throw new Error("Generator is already running");
+        if (o === s) {
+          if ("throw" === i) throw a;
+          return {
+            value: t,
+            done: !0
+          };
+        }
+        for (n.method = i, n.arg = a;;) {
+          var c = n.delegate;
+          if (c) {
+            var u = maybeInvokeDelegate(c, n);
+            if (u) {
+              if (u === y) continue;
+              return u;
+            }
+          }
+          if ("next" === n.method) n.sent = n._sent = n.arg;else if ("throw" === n.method) {
+            if (o === h) throw o = s, n.arg;
+            n.dispatchException(n.arg);
+          } else "return" === n.method && n.abrupt("return", n.arg);
+          o = f;
+          var p = tryCatch(e, r, n);
+          if ("normal" === p.type) {
+            if (o = n.done ? s : l, p.arg === y) continue;
+            return {
+              value: p.arg,
+              done: n.done
+            };
+          }
+          "throw" === p.type && (o = s, n.method = "throw", n.arg = p.arg);
+        }
+      };
+    }
+    function maybeInvokeDelegate(e, r) {
+      var n = r.method,
+        o = e.iterator[n];
+      if (o === t) return r.delegate = null, "throw" === n && e.iterator.return && (r.method = "return", r.arg = t, maybeInvokeDelegate(e, r), "throw" === r.method) || "return" !== n && (r.method = "throw", r.arg = new TypeError("The iterator does not provide a '" + n + "' method")), y;
+      var i = tryCatch(o, e.iterator, r.arg);
+      if ("throw" === i.type) return r.method = "throw", r.arg = i.arg, r.delegate = null, y;
+      var a = i.arg;
+      return a ? a.done ? (r[e.resultName] = a.value, r.next = e.nextLoc, "return" !== r.method && (r.method = "next", r.arg = t), r.delegate = null, y) : a : (r.method = "throw", r.arg = new TypeError("iterator result is not an object"), r.delegate = null, y);
+    }
+    function pushTryEntry(t) {
+      var e = {
+        tryLoc: t[0]
+      };
+      1 in t && (e.catchLoc = t[1]), 2 in t && (e.finallyLoc = t[2], e.afterLoc = t[3]), this.tryEntries.push(e);
+    }
+    function resetTryEntry(t) {
+      var e = t.completion || {};
+      e.type = "normal", delete e.arg, t.completion = e;
+    }
+    function Context(t) {
+      this.tryEntries = [{
+        tryLoc: "root"
+      }], t.forEach(pushTryEntry, this), this.reset(!0);
+    }
+    function values(e) {
+      if (e || "" === e) {
+        var r = e[a];
+        if (r) return r.call(e);
+        if ("function" == typeof e.next) return e;
+        if (!isNaN(e.length)) {
+          var o = -1,
+            i = function next() {
+              for (; ++o < e.length;) if (n.call(e, o)) return next.value = e[o], next.done = !1, next;
+              return next.value = t, next.done = !0, next;
+            };
+          return i.next = i;
+        }
+      }
+      throw new TypeError(typeof e + " is not iterable");
+    }
+    return GeneratorFunction.prototype = GeneratorFunctionPrototype, o(g, "constructor", {
+      value: GeneratorFunctionPrototype,
+      configurable: !0
+    }), o(GeneratorFunctionPrototype, "constructor", {
+      value: GeneratorFunction,
+      configurable: !0
+    }), GeneratorFunction.displayName = define(GeneratorFunctionPrototype, u, "GeneratorFunction"), e.isGeneratorFunction = function (t) {
+      var e = "function" == typeof t && t.constructor;
+      return !!e && (e === GeneratorFunction || "GeneratorFunction" === (e.displayName || e.name));
+    }, e.mark = function (t) {
+      return Object.setPrototypeOf ? Object.setPrototypeOf(t, GeneratorFunctionPrototype) : (t.__proto__ = GeneratorFunctionPrototype, define(t, u, "GeneratorFunction")), t.prototype = Object.create(g), t;
+    }, e.awrap = function (t) {
+      return {
+        __await: t
+      };
+    }, defineIteratorMethods(AsyncIterator.prototype), define(AsyncIterator.prototype, c, function () {
+      return this;
+    }), e.AsyncIterator = AsyncIterator, e.async = function (t, r, n, o, i) {
+      void 0 === i && (i = Promise);
+      var a = new AsyncIterator(wrap(t, r, n, o), i);
+      return e.isGeneratorFunction(r) ? a : a.next().then(function (t) {
+        return t.done ? t.value : a.next();
+      });
+    }, defineIteratorMethods(g), define(g, u, "Generator"), define(g, a, function () {
+      return this;
+    }), define(g, "toString", function () {
+      return "[object Generator]";
+    }), e.keys = function (t) {
+      var e = Object(t),
+        r = [];
+      for (var n in e) r.push(n);
+      return r.reverse(), function next() {
+        for (; r.length;) {
+          var t = r.pop();
+          if (t in e) return next.value = t, next.done = !1, next;
+        }
+        return next.done = !0, next;
+      };
+    }, e.values = values, Context.prototype = {
+      constructor: Context,
+      reset: function (e) {
+        if (this.prev = 0, this.next = 0, this.sent = this._sent = t, this.done = !1, this.delegate = null, this.method = "next", this.arg = t, this.tryEntries.forEach(resetTryEntry), !e) for (var r in this) "t" === r.charAt(0) && n.call(this, r) && !isNaN(+r.slice(1)) && (this[r] = t);
+      },
+      stop: function () {
+        this.done = !0;
+        var t = this.tryEntries[0].completion;
+        if ("throw" === t.type) throw t.arg;
+        return this.rval;
+      },
+      dispatchException: function (e) {
+        if (this.done) throw e;
+        var r = this;
+        function handle(n, o) {
+          return a.type = "throw", a.arg = e, r.next = n, o && (r.method = "next", r.arg = t), !!o;
+        }
+        for (var o = this.tryEntries.length - 1; o >= 0; --o) {
+          var i = this.tryEntries[o],
+            a = i.completion;
+          if ("root" === i.tryLoc) return handle("end");
+          if (i.tryLoc <= this.prev) {
+            var c = n.call(i, "catchLoc"),
+              u = n.call(i, "finallyLoc");
+            if (c && u) {
+              if (this.prev < i.catchLoc) return handle(i.catchLoc, !0);
+              if (this.prev < i.finallyLoc) return handle(i.finallyLoc);
+            } else if (c) {
+              if (this.prev < i.catchLoc) return handle(i.catchLoc, !0);
+            } else {
+              if (!u) throw new Error("try statement without catch or finally");
+              if (this.prev < i.finallyLoc) return handle(i.finallyLoc);
+            }
+          }
+        }
+      },
+      abrupt: function (t, e) {
+        for (var r = this.tryEntries.length - 1; r >= 0; --r) {
+          var o = this.tryEntries[r];
+          if (o.tryLoc <= this.prev && n.call(o, "finallyLoc") && this.prev < o.finallyLoc) {
+            var i = o;
+            break;
+          }
+        }
+        i && ("break" === t || "continue" === t) && i.tryLoc <= e && e <= i.finallyLoc && (i = null);
+        var a = i ? i.completion : {};
+        return a.type = t, a.arg = e, i ? (this.method = "next", this.next = i.finallyLoc, y) : this.complete(a);
+      },
+      complete: function (t, e) {
+        if ("throw" === t.type) throw t.arg;
+        return "break" === t.type || "continue" === t.type ? this.next = t.arg : "return" === t.type ? (this.rval = this.arg = t.arg, this.method = "return", this.next = "end") : "normal" === t.type && e && (this.next = e), y;
+      },
+      finish: function (t) {
+        for (var e = this.tryEntries.length - 1; e >= 0; --e) {
+          var r = this.tryEntries[e];
+          if (r.finallyLoc === t) return this.complete(r.completion, r.afterLoc), resetTryEntry(r), y;
+        }
+      },
+      catch: function (t) {
+        for (var e = this.tryEntries.length - 1; e >= 0; --e) {
+          var r = this.tryEntries[e];
+          if (r.tryLoc === t) {
+            var n = r.completion;
+            if ("throw" === n.type) {
+              var o = n.arg;
+              resetTryEntry(r);
+            }
+            return o;
+          }
+        }
+        throw new Error("illegal catch attempt");
+      },
+      delegateYield: function (e, r, n) {
+        return this.delegate = {
+          iterator: values(e),
+          resultName: r,
+          nextLoc: n
+        }, "next" === this.method && (this.arg = t), y;
+      }
+    }, e;
+  }
+  function _toPrimitive(t, r) {
+    if ("object" != typeof t || !t) return t;
+    var e = t[Symbol.toPrimitive];
+    if (void 0 !== e) {
+      var i = e.call(t, r || "default");
+      if ("object" != typeof i) return i;
+      throw new TypeError("@@toPrimitive must return a primitive value.");
+    }
+    return ("string" === r ? String : Number)(t);
+  }
+  function _toPropertyKey(t) {
+    var i = _toPrimitive(t, "string");
+    return "symbol" == typeof i ? i : String(i);
+  }
+  function _typeof(o) {
+    "@babel/helpers - typeof";
+
+    return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) {
+      return typeof o;
+    } : function (o) {
+      return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o;
+    }, _typeof(o);
+  }
+  function _wrapAsyncGenerator(fn) {
+    return function () {
+      return new _AsyncGenerator(fn.apply(this, arguments));
+    };
+  }
+  function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
+    try {
+      var info = gen[key](arg);
+      var value = info.value;
+    } catch (error) {
+      reject(error);
+      return;
+    }
+    if (info.done) {
+      resolve(value);
+    } else {
+      Promise.resolve(value).then(_next, _throw);
+    }
+  }
+  function _asyncToGenerator(fn) {
+    return function () {
+      var self = this,
+        args = arguments;
+      return new Promise(function (resolve, reject) {
+        var gen = fn.apply(self, args);
+        function _next(value) {
+          asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
+        }
+        function _throw(err) {
+          asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
+        }
+        _next(undefined);
+      });
+    };
+  }
+  function _classCallCheck(instance, Constructor) {
+    if (!(instance instanceof Constructor)) {
+      throw new TypeError("Cannot call a class as a function");
+    }
+  }
+  function _defineProperties(target, props) {
+    for (var i = 0; i < props.length; i++) {
+      var descriptor = props[i];
+      descriptor.enumerable = descriptor.enumerable || false;
+      descriptor.configurable = true;
+      if ("value" in descriptor) descriptor.writable = true;
+      Object.defineProperty(target, _toPropertyKey(descriptor.key), descriptor);
+    }
+  }
+  function _createClass(Constructor, protoProps, staticProps) {
+    if (protoProps) _defineProperties(Constructor.prototype, protoProps);
+    if (staticProps) _defineProperties(Constructor, staticProps);
+    Object.defineProperty(Constructor, "prototype", {
+      writable: false
+    });
+    return Constructor;
+  }
+  function _defineProperty(obj, key, value) {
+    key = _toPropertyKey(key);
+    if (key in obj) {
+      Object.defineProperty(obj, key, {
+        value: value,
+        enumerable: true,
+        configurable: true,
+        writable: true
+      });
+    } else {
+      obj[key] = value;
+    }
+    return obj;
+  }
+  function _slicedToArray(arr, i) {
+    return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest();
+  }
+  function _toArray(arr) {
+    return _arrayWithHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableRest();
+  }
+  function _toConsumableArray(arr) {
+    return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread();
+  }
+  function _arrayWithoutHoles(arr) {
+    if (Array.isArray(arr)) return _arrayLikeToArray(arr);
+  }
+  function _arrayWithHoles(arr) {
+    if (Array.isArray(arr)) return arr;
+  }
+  function _iterableToArray(iter) {
+    if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter);
+  }
+  function _unsupportedIterableToArray(o, minLen) {
+    if (!o) return;
+    if (typeof o === "string") return _arrayLikeToArray(o, minLen);
+    var n = Object.prototype.toString.call(o).slice(8, -1);
+    if (n === "Object" && o.constructor) n = o.constructor.name;
+    if (n === "Map" || n === "Set") return Array.from(o);
+    if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
+  }
+  function _arrayLikeToArray(arr, len) {
+    if (len == null || len > arr.length) len = arr.length;
+    for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];
+    return arr2;
+  }
+  function _nonIterableSpread() {
+    throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
+  }
+  function _nonIterableRest() {
+    throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
+  }
+  function _createForOfIteratorHelper(o, allowArrayLike) {
+    var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"];
+    if (!it) {
+      if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") {
+        if (it) o = it;
+        var i = 0;
+        var F = function () {};
+        return {
+          s: F,
+          n: function () {
+            if (i >= o.length) return {
+              done: true
+            };
+            return {
+              done: false,
+              value: o[i++]
+            };
+          },
+          e: function (e) {
+            throw e;
+          },
+          f: F
+        };
+      }
+      throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
+    }
+    var normalCompletion = true,
+      didErr = false,
+      err;
+    return {
+      s: function () {
+        it = it.call(o);
+      },
+      n: function () {
+        var step = it.next();
+        normalCompletion = step.done;
+        return step;
+      },
+      e: function (e) {
+        didErr = true;
+        err = e;
+      },
+      f: function () {
+        try {
+          if (!normalCompletion && it.return != null) it.return();
+        } finally {
+          if (didErr) throw err;
+        }
+      }
+    };
+  }
+
+  function bind(fn, thisArg) {
+    return function wrap() {
+      return fn.apply(thisArg, arguments);
+    };
+  }
+
+  // utils is a library of generic helper functions non-specific to axios
+
+  var toString = Object.prototype.toString;
+  var getPrototypeOf = Object.getPrototypeOf;
+  var kindOf = function (cache) {
+    return function (thing) {
+      var str = toString.call(thing);
+      return cache[str] || (cache[str] = str.slice(8, -1).toLowerCase());
+    };
+  }(Object.create(null));
+  var kindOfTest = function kindOfTest(type) {
+    type = type.toLowerCase();
+    return function (thing) {
+      return kindOf(thing) === type;
+    };
+  };
+  var typeOfTest = function typeOfTest(type) {
+    return function (thing) {
+      return _typeof(thing) === type;
+    };
+  };
+
+  /**
+   * Determine if a value is an Array
+   *
+   * @param {Object} val The value to test
+   *
+   * @returns {boolean} True if value is an Array, otherwise false
+   */
+  var isArray = Array.isArray;
+
+  /**
+   * Determine if a value is undefined
+   *
+   * @param {*} val The value to test
+   *
+   * @returns {boolean} True if the value is undefined, otherwise false
+   */
+  var isUndefined = typeOfTest('undefined');
+
+  /**
+   * Determine if a value is a Buffer
+   *
+   * @param {*} val The value to test
+   *
+   * @returns {boolean} True if value is a Buffer, otherwise false
+   */
+  function isBuffer(val) {
+    return val !== null && !isUndefined(val) && val.constructor !== null && !isUndefined(val.constructor) && isFunction(val.constructor.isBuffer) && val.constructor.isBuffer(val);
+  }
+
+  /**
+   * Determine if a value is an ArrayBuffer
+   *
+   * @param {*} val The value to test
+   *
+   * @returns {boolean} True if value is an ArrayBuffer, otherwise false
+   */
+  var isArrayBuffer = kindOfTest('ArrayBuffer');
+
+  /**
+   * Determine if a value is a view on an ArrayBuffer
+   *
+   * @param {*} val The value to test
+   *
+   * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false
+   */
+  function isArrayBufferView(val) {
+    var result;
+    if (typeof ArrayBuffer !== 'undefined' && ArrayBuffer.isView) {
+      result = ArrayBuffer.isView(val);
+    } else {
+      result = val && val.buffer && isArrayBuffer(val.buffer);
+    }
+    return result;
+  }
+
+  /**
+   * Determine if a value is a String
+   *
+   * @param {*} val The value to test
+   *
+   * @returns {boolean} True if value is a String, otherwise false
+   */
+  var isString = typeOfTest('string');
+
+  /**
+   * Determine if a value is a Function
+   *
+   * @param {*} val The value to test
+   * @returns {boolean} True if value is a Function, otherwise false
+   */
+  var isFunction = typeOfTest('function');
+
+  /**
+   * Determine if a value is a Number
+   *
+   * @param {*} val The value to test
+   *
+   * @returns {boolean} True if value is a Number, otherwise false
+   */
+  var isNumber = typeOfTest('number');
+
+  /**
+   * Determine if a value is an Object
+   *
+   * @param {*} thing The value to test
+   *
+   * @returns {boolean} True if value is an Object, otherwise false
+   */
+  var isObject = function isObject(thing) {
+    return thing !== null && _typeof(thing) === 'object';
+  };
+
+  /**
+   * Determine if a value is a Boolean
+   *
+   * @param {*} thing The value to test
+   * @returns {boolean} True if value is a Boolean, otherwise false
+   */
+  var isBoolean = function isBoolean(thing) {
+    return thing === true || thing === false;
+  };
+
+  /**
+   * Determine if a value is a plain Object
+   *
+   * @param {*} val The value to test
+   *
+   * @returns {boolean} True if value is a plain Object, otherwise false
+   */
+  var isPlainObject = function isPlainObject(val) {
+    if (kindOf(val) !== 'object') {
+      return false;
+    }
+    var prototype = getPrototypeOf(val);
+    return (prototype === null || prototype === Object.prototype || Object.getPrototypeOf(prototype) === null) && !(Symbol.toStringTag in val) && !(Symbol.iterator in val);
+  };
+
+  /**
+   * Determine if a value is a Date
+   *
+   * @param {*} val The value to test
+   *
+   * @returns {boolean} True if value is a Date, otherwise false
+   */
+  var isDate = kindOfTest('Date');
+
+  /**
+   * Determine if a value is a File
+   *
+   * @param {*} val The value to test
+   *
+   * @returns {boolean} True if value is a File, otherwise false
+   */
+  var isFile = kindOfTest('File');
+
+  /**
+   * Determine if a value is a Blob
+   *
+   * @param {*} val The value to test
+   *
+   * @returns {boolean} True if value is a Blob, otherwise false
+   */
+  var isBlob = kindOfTest('Blob');
+
+  /**
+   * Determine if a value is a FileList
+   *
+   * @param {*} val The value to test
+   *
+   * @returns {boolean} True if value is a File, otherwise false
+   */
+  var isFileList = kindOfTest('FileList');
+
+  /**
+   * Determine if a value is a Stream
+   *
+   * @param {*} val The value to test
+   *
+   * @returns {boolean} True if value is a Stream, otherwise false
+   */
+  var isStream = function isStream(val) {
+    return isObject(val) && isFunction(val.pipe);
+  };
+
+  /**
+   * Determine if a value is a FormData
+   *
+   * @param {*} thing The value to test
+   *
+   * @returns {boolean} True if value is an FormData, otherwise false
+   */
+  var isFormData = function isFormData(thing) {
+    var kind;
+    return thing && (typeof FormData === 'function' && thing instanceof FormData || isFunction(thing.append) && ((kind = kindOf(thing)) === 'formdata' ||
+    // detect form-data instance
+    kind === 'object' && isFunction(thing.toString) && thing.toString() === '[object FormData]'));
+  };
+
+  /**
+   * Determine if a value is a URLSearchParams object
+   *
+   * @param {*} val The value to test
+   *
+   * @returns {boolean} True if value is a URLSearchParams object, otherwise false
+   */
+  var isURLSearchParams = kindOfTest('URLSearchParams');
+  var _map = ['ReadableStream', 'Request', 'Response', 'Headers'].map(kindOfTest),
+    _map2 = _slicedToArray(_map, 4),
+    isReadableStream = _map2[0],
+    isRequest = _map2[1],
+    isResponse = _map2[2],
+    isHeaders = _map2[3];
+
+  /**
+   * Trim excess whitespace off the beginning and end of a string
+   *
+   * @param {String} str The String to trim
+   *
+   * @returns {String} The String freed of excess whitespace
+   */
+  var trim = function trim(str) {
+    return str.trim ? str.trim() : str.replace(/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, '');
+  };
+
+  /**
+   * Iterate over an Array or an Object invoking a function for each item.
+   *
+   * If `obj` is an Array callback will be called passing
+   * the value, index, and complete array for each item.
+   *
+   * If 'obj' is an Object callback will be called passing
+   * the value, key, and complete object for each property.
+   *
+   * @param {Object|Array} obj The object to iterate
+   * @param {Function} fn The callback to invoke for each item
+   *
+   * @param {Boolean} [allOwnKeys = false]
+   * @returns {any}
+   */
+  function forEach(obj, fn) {
+    var _ref = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {},
+      _ref$allOwnKeys = _ref.allOwnKeys,
+      allOwnKeys = _ref$allOwnKeys === void 0 ? false : _ref$allOwnKeys;
+    // Don't bother if no value provided
+    if (obj === null || typeof obj === 'undefined') {
+      return;
+    }
+    var i;
+    var l;
+
+    // Force an array if not already something iterable
+    if (_typeof(obj) !== 'object') {
+      /*eslint no-param-reassign:0*/
+      obj = [obj];
+    }
+    if (isArray(obj)) {
+      // Iterate over array values
+      for (i = 0, l = obj.length; i < l; i++) {
+        fn.call(null, obj[i], i, obj);
+      }
+    } else {
+      // Iterate over object keys
+      var keys = allOwnKeys ? Object.getOwnPropertyNames(obj) : Object.keys(obj);
+      var len = keys.length;
+      var key;
+      for (i = 0; i < len; i++) {
+        key = keys[i];
+        fn.call(null, obj[key], key, obj);
+      }
+    }
+  }
+  function findKey(obj, key) {
+    key = key.toLowerCase();
+    var keys = Object.keys(obj);
+    var i = keys.length;
+    var _key;
+    while (i-- > 0) {
+      _key = keys[i];
+      if (key === _key.toLowerCase()) {
+        return _key;
+      }
+    }
+    return null;
+  }
+  var _global = function () {
+    /*eslint no-undef:0*/
+    if (typeof globalThis !== "undefined") return globalThis;
+    return typeof self !== "undefined" ? self : typeof window !== 'undefined' ? window : global;
+  }();
+  var isContextDefined = function isContextDefined(context) {
+    return !isUndefined(context) && context !== _global;
+  };
+
+  /**
+   * Accepts varargs expecting each argument to be an object, then
+   * immutably merges the properties of each object and returns result.
+   *
+   * When multiple objects contain the same key the later object in
+   * the arguments list will take precedence.
+   *
+   * Example:
+   *
+   * ```js
+   * var result = merge({foo: 123}, {foo: 456});
+   * console.log(result.foo); // outputs 456
+   * ```
+   *
+   * @param {Object} obj1 Object to merge
+   *
+   * @returns {Object} Result of all merge properties
+   */
+  function merge( /* obj1, obj2, obj3, ... */
+  ) {
+    var _ref2 = isContextDefined(this) && this || {},
+      caseless = _ref2.caseless;
+    var result = {};
+    var assignValue = function assignValue(val, key) {
+      var targetKey = caseless && findKey(result, key) || key;
+      if (isPlainObject(result[targetKey]) && isPlainObject(val)) {
+        result[targetKey] = merge(result[targetKey], val);
+      } else if (isPlainObject(val)) {
+        result[targetKey] = merge({}, val);
+      } else if (isArray(val)) {
+        result[targetKey] = val.slice();
+      } else {
+        result[targetKey] = val;
+      }
+    };
+    for (var i = 0, l = arguments.length; i < l; i++) {
+      arguments[i] && forEach(arguments[i], assignValue);
+    }
+    return result;
+  }
+
+  /**
+   * Extends object a by mutably adding to it the properties of object b.
+   *
+   * @param {Object} a The object to be extended
+   * @param {Object} b The object to copy properties from
+   * @param {Object} thisArg The object to bind function to
+   *
+   * @param {Boolean} [allOwnKeys]
+   * @returns {Object} The resulting value of object a
+   */
+  var extend = function extend(a, b, thisArg) {
+    var _ref3 = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {},
+      allOwnKeys = _ref3.allOwnKeys;
+    forEach(b, function (val, key) {
+      if (thisArg && isFunction(val)) {
+        a[key] = bind(val, thisArg);
+      } else {
+        a[key] = val;
+      }
+    }, {
+      allOwnKeys: allOwnKeys
+    });
+    return a;
+  };
+
+  /**
+   * Remove byte order marker. This catches EF BB BF (the UTF-8 BOM)
+   *
+   * @param {string} content with BOM
+   *
+   * @returns {string} content value without BOM
+   */
+  var stripBOM = function stripBOM(content) {
+    if (content.charCodeAt(0) === 0xFEFF) {
+      content = content.slice(1);
+    }
+    return content;
+  };
+
+  /**
+   * Inherit the prototype methods from one constructor into another
+   * @param {function} constructor
+   * @param {function} superConstructor
+   * @param {object} [props]
+   * @param {object} [descriptors]
+   *
+   * @returns {void}
+   */
+  var inherits = function inherits(constructor, superConstructor, props, descriptors) {
+    constructor.prototype = Object.create(superConstructor.prototype, descriptors);
+    constructor.prototype.constructor = constructor;
+    Object.defineProperty(constructor, 'super', {
+      value: superConstructor.prototype
+    });
+    props && Object.assign(constructor.prototype, props);
+  };
+
+  /**
+   * Resolve object with deep prototype chain to a flat object
+   * @param {Object} sourceObj source object
+   * @param {Object} [destObj]
+   * @param {Function|Boolean} [filter]
+   * @param {Function} [propFilter]
+   *
+   * @returns {Object}
+   */
+  var toFlatObject = function toFlatObject(sourceObj, destObj, filter, propFilter) {
+    var props;
+    var i;
+    var prop;
+    var merged = {};
+    destObj = destObj || {};
+    // eslint-disable-next-line no-eq-null,eqeqeq
+    if (sourceObj == null) return destObj;
+    do {
+      props = Object.getOwnPropertyNames(sourceObj);
+      i = props.length;
+      while (i-- > 0) {
+        prop = props[i];
+        if ((!propFilter || propFilter(prop, sourceObj, destObj)) && !merged[prop]) {
+          destObj[prop] = sourceObj[prop];
+          merged[prop] = true;
+        }
+      }
+      sourceObj = filter !== false && getPrototypeOf(sourceObj);
+    } while (sourceObj && (!filter || filter(sourceObj, destObj)) && sourceObj !== Object.prototype);
+    return destObj;
+  };
+
+  /**
+   * Determines whether a string ends with the characters of a specified string
+   *
+   * @param {String} str
+   * @param {String} searchString
+   * @param {Number} [position= 0]
+   *
+   * @returns {boolean}
+   */
+  var endsWith = function endsWith(str, searchString, position) {
+    str = String(str);
+    if (position === undefined || position > str.length) {
+      position = str.length;
+    }
+    position -= searchString.length;
+    var lastIndex = str.indexOf(searchString, position);
+    return lastIndex !== -1 && lastIndex === position;
+  };
+
+  /**
+   * Returns new array from array like object or null if failed
+   *
+   * @param {*} [thing]
+   *
+   * @returns {?Array}
+   */
+  var toArray = function toArray(thing) {
+    if (!thing) return null;
+    if (isArray(thing)) return thing;
+    var i = thing.length;
+    if (!isNumber(i)) return null;
+    var arr = new Array(i);
+    while (i-- > 0) {
+      arr[i] = thing[i];
+    }
+    return arr;
+  };
+
+  /**
+   * Checking if the Uint8Array exists and if it does, it returns a function that checks if the
+   * thing passed in is an instance of Uint8Array
+   *
+   * @param {TypedArray}
+   *
+   * @returns {Array}
+   */
+  // eslint-disable-next-line func-names
+  var isTypedArray = function (TypedArray) {
+    // eslint-disable-next-line func-names
+    return function (thing) {
+      return TypedArray && thing instanceof TypedArray;
+    };
+  }(typeof Uint8Array !== 'undefined' && getPrototypeOf(Uint8Array));
+
+  /**
+   * For each entry in the object, call the function with the key and value.
+   *
+   * @param {Object<any, any>} obj - The object to iterate over.
+   * @param {Function} fn - The function to call for each entry.
+   *
+   * @returns {void}
+   */
+  var forEachEntry = function forEachEntry(obj, fn) {
+    var generator = obj && obj[Symbol.iterator];
+    var iterator = generator.call(obj);
+    var result;
+    while ((result = iterator.next()) && !result.done) {
+      var pair = result.value;
+      fn.call(obj, pair[0], pair[1]);
+    }
+  };
+
+  /**
+   * It takes a regular expression and a string, and returns an array of all the matches
+   *
+   * @param {string} regExp - The regular expression to match against.
+   * @param {string} str - The string to search.
+   *
+   * @returns {Array<boolean>}
+   */
+  var matchAll = function matchAll(regExp, str) {
+    var matches;
+    var arr = [];
+    while ((matches = regExp.exec(str)) !== null) {
+      arr.push(matches);
+    }
+    return arr;
+  };
+
+  /* Checking if the kindOfTest function returns true when passed an HTMLFormElement. */
+  var isHTMLForm = kindOfTest('HTMLFormElement');
+  var toCamelCase = function toCamelCase(str) {
+    return str.toLowerCase().replace(/[-_\s]([a-z\d])(\w*)/g, function replacer(m, p1, p2) {
+      return p1.toUpperCase() + p2;
+    });
+  };
+
+  /* Creating a function that will check if an object has a property. */
+  var hasOwnProperty = function (_ref4) {
+    var hasOwnProperty = _ref4.hasOwnProperty;
+    return function (obj, prop) {
+      return hasOwnProperty.call(obj, prop);
+    };
+  }(Object.prototype);
+
+  /**
+   * Determine if a value is a RegExp object
+   *
+   * @param {*} val The value to test
+   *
+   * @returns {boolean} True if value is a RegExp object, otherwise false
+   */
+  var isRegExp = kindOfTest('RegExp');
+  var reduceDescriptors = function reduceDescriptors(obj, reducer) {
+    var descriptors = Object.getOwnPropertyDescriptors(obj);
+    var reducedDescriptors = {};
+    forEach(descriptors, function (descriptor, name) {
+      var ret;
+      if ((ret = reducer(descriptor, name, obj)) !== false) {
+        reducedDescriptors[name] = ret || descriptor;
+      }
+    });
+    Object.defineProperties(obj, reducedDescriptors);
+  };
+
+  /**
+   * Makes all methods read-only
+   * @param {Object} obj
+   */
+
+  var freezeMethods = function freezeMethods(obj) {
+    reduceDescriptors(obj, function (descriptor, name) {
+      // skip restricted props in strict mode
+      if (isFunction(obj) && ['arguments', 'caller', 'callee'].indexOf(name) !== -1) {
+        return false;
+      }
+      var value = obj[name];
+      if (!isFunction(value)) return;
+      descriptor.enumerable = false;
+      if ('writable' in descriptor) {
+        descriptor.writable = false;
+        return;
+      }
+      if (!descriptor.set) {
+        descriptor.set = function () {
+          throw Error('Can not rewrite read-only method \'' + name + '\'');
+        };
+      }
+    });
+  };
+  var toObjectSet = function toObjectSet(arrayOrString, delimiter) {
+    var obj = {};
+    var define = function define(arr) {
+      arr.forEach(function (value) {
+        obj[value] = true;
+      });
+    };
+    isArray(arrayOrString) ? define(arrayOrString) : define(String(arrayOrString).split(delimiter));
+    return obj;
+  };
+  var noop = function noop() {};
+  var toFiniteNumber = function toFiniteNumber(value, defaultValue) {
+    return value != null && Number.isFinite(value = +value) ? value : defaultValue;
+  };
+  var ALPHA = 'abcdefghijklmnopqrstuvwxyz';
+  var DIGIT = '0123456789';
+  var ALPHABET = {
+    DIGIT: DIGIT,
+    ALPHA: ALPHA,
+    ALPHA_DIGIT: ALPHA + ALPHA.toUpperCase() + DIGIT
+  };
+  var generateString = function generateString() {
+    var size = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 16;
+    var alphabet = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : ALPHABET.ALPHA_DIGIT;
+    var str = '';
+    var length = alphabet.length;
+    while (size--) {
+      str += alphabet[Math.random() * length | 0];
+    }
+    return str;
+  };
+
+  /**
+   * If the thing is a FormData object, return true, otherwise return false.
+   *
+   * @param {unknown} thing - The thing to check.
+   *
+   * @returns {boolean}
+   */
+  function isSpecCompliantForm(thing) {
+    return !!(thing && isFunction(thing.append) && thing[Symbol.toStringTag] === 'FormData' && thing[Symbol.iterator]);
+  }
+  var toJSONObject = function toJSONObject(obj) {
+    var stack = new Array(10);
+    var visit = function visit(source, i) {
+      if (isObject(source)) {
+        if (stack.indexOf(source) >= 0) {
+          return;
+        }
+        if (!('toJSON' in source)) {
+          stack[i] = source;
+          var target = isArray(source) ? [] : {};
+          forEach(source, function (value, key) {
+            var reducedValue = visit(value, i + 1);
+            !isUndefined(reducedValue) && (target[key] = reducedValue);
+          });
+          stack[i] = undefined;
+          return target;
+        }
+      }
+      return source;
+    };
+    return visit(obj, 0);
+  };
+  var isAsyncFn = kindOfTest('AsyncFunction');
+  var isThenable = function isThenable(thing) {
+    return thing && (isObject(thing) || isFunction(thing)) && isFunction(thing.then) && isFunction(thing["catch"]);
+  };
+
+  // original code
+  // https://github.com/DigitalBrainJS/AxiosPromise/blob/16deab13710ec09779922131f3fa5954320f83ab/lib/utils.js#L11-L34
+
+  var _setImmediate = function (setImmediateSupported, postMessageSupported) {
+    if (setImmediateSupported) {
+      return setImmediate;
+    }
+    return postMessageSupported ? function (token, callbacks) {
+      _global.addEventListener("message", function (_ref5) {
+        var source = _ref5.source,
+          data = _ref5.data;
+        if (source === _global && data === token) {
+          callbacks.length && callbacks.shift()();
+        }
+      }, false);
+      return function (cb) {
+        callbacks.push(cb);
+        _global.postMessage(token, "*");
+      };
+    }("axios@".concat(Math.random()), []) : function (cb) {
+      return setTimeout(cb);
+    };
+  }(typeof setImmediate === 'function', isFunction(_global.postMessage));
+  var asap = typeof queueMicrotask !== 'undefined' ? queueMicrotask.bind(_global) : typeof process !== 'undefined' && process.nextTick || _setImmediate;
+
+  // *********************
+
+  var utils$1 = {
+    isArray: isArray,
+    isArrayBuffer: isArrayBuffer,
+    isBuffer: isBuffer,
+    isFormData: isFormData,
+    isArrayBufferView: isArrayBufferView,
+    isString: isString,
+    isNumber: isNumber,
+    isBoolean: isBoolean,
+    isObject: isObject,
+    isPlainObject: isPlainObject,
+    isReadableStream: isReadableStream,
+    isRequest: isRequest,
+    isResponse: isResponse,
+    isHeaders: isHeaders,
+    isUndefined: isUndefined,
+    isDate: isDate,
+    isFile: isFile,
+    isBlob: isBlob,
+    isRegExp: isRegExp,
+    isFunction: isFunction,
+    isStream: isStream,
+    isURLSearchParams: isURLSearchParams,
+    isTypedArray: isTypedArray,
+    isFileList: isFileList,
+    forEach: forEach,
+    merge: merge,
+    extend: extend,
+    trim: trim,
+    stripBOM: stripBOM,
+    inherits: inherits,
+    toFlatObject: toFlatObject,
+    kindOf: kindOf,
+    kindOfTest: kindOfTest,
+    endsWith: endsWith,
+    toArray: toArray,
+    forEachEntry: forEachEntry,
+    matchAll: matchAll,
+    isHTMLForm: isHTMLForm,
+    hasOwnProperty: hasOwnProperty,
+    hasOwnProp: hasOwnProperty,
+    // an alias to avoid ESLint no-prototype-builtins detection
+    reduceDescriptors: reduceDescriptors,
+    freezeMethods: freezeMethods,
+    toObjectSet: toObjectSet,
+    toCamelCase: toCamelCase,
+    noop: noop,
+    toFiniteNumber: toFiniteNumber,
+    findKey: findKey,
+    global: _global,
+    isContextDefined: isContextDefined,
+    ALPHABET: ALPHABET,
+    generateString: generateString,
+    isSpecCompliantForm: isSpecCompliantForm,
+    toJSONObject: toJSONObject,
+    isAsyncFn: isAsyncFn,
+    isThenable: isThenable,
+    setImmediate: _setImmediate,
+    asap: asap
+  };
+
+  /**
+   * Create an Error with the specified message, config, error code, request and response.
+   *
+   * @param {string} message The error message.
+   * @param {string} [code] The error code (for example, 'ECONNABORTED').
+   * @param {Object} [config] The config.
+   * @param {Object} [request] The request.
+   * @param {Object} [response] The response.
+   *
+   * @returns {Error} The created error.
+   */
+  function AxiosError(message, code, config, request, response) {
+    Error.call(this);
+    if (Error.captureStackTrace) {
+      Error.captureStackTrace(this, this.constructor);
+    } else {
+      this.stack = new Error().stack;
+    }
+    this.message = message;
+    this.name = 'AxiosError';
+    code && (this.code = code);
+    config && (this.config = config);
+    request && (this.request = request);
+    if (response) {
+      this.response = response;
+      this.status = response.status ? response.status : null;
+    }
+  }
+  utils$1.inherits(AxiosError, Error, {
+    toJSON: function toJSON() {
+      return {
+        // Standard
+        message: this.message,
+        name: this.name,
+        // Microsoft
+        description: this.description,
+        number: this.number,
+        // Mozilla
+        fileName: this.fileName,
+        lineNumber: this.lineNumber,
+        columnNumber: this.columnNumber,
+        stack: this.stack,
+        // Axios
+        config: utils$1.toJSONObject(this.config),
+        code: this.code,
+        status: this.status
+      };
+    }
+  });
+  var prototype$1 = AxiosError.prototype;
+  var descriptors = {};
+  ['ERR_BAD_OPTION_VALUE', 'ERR_BAD_OPTION', 'ECONNABORTED', 'ETIMEDOUT', 'ERR_NETWORK', 'ERR_FR_TOO_MANY_REDIRECTS', 'ERR_DEPRECATED', 'ERR_BAD_RESPONSE', 'ERR_BAD_REQUEST', 'ERR_CANCELED', 'ERR_NOT_SUPPORT', 'ERR_INVALID_URL'
+  // eslint-disable-next-line func-names
+  ].forEach(function (code) {
+    descriptors[code] = {
+      value: code
+    };
+  });
+  Object.defineProperties(AxiosError, descriptors);
+  Object.defineProperty(prototype$1, 'isAxiosError', {
+    value: true
+  });
+
+  // eslint-disable-next-line func-names
+  AxiosError.from = function (error, code, config, request, response, customProps) {
+    var axiosError = Object.create(prototype$1);
+    utils$1.toFlatObject(error, axiosError, function filter(obj) {
+      return obj !== Error.prototype;
+    }, function (prop) {
+      return prop !== 'isAxiosError';
+    });
+    AxiosError.call(axiosError, error.message, code, config, request, response);
+    axiosError.cause = error;
+    axiosError.name = error.name;
+    customProps && Object.assign(axiosError, customProps);
+    return axiosError;
+  };
+
+  // eslint-disable-next-line strict
+  var httpAdapter = null;
+
+  /**
+   * Determines if the given thing is a array or js object.
+   *
+   * @param {string} thing - The object or array to be visited.
+   *
+   * @returns {boolean}
+   */
+  function isVisitable(thing) {
+    return utils$1.isPlainObject(thing) || utils$1.isArray(thing);
+  }
+
+  /**
+   * It removes the brackets from the end of a string
+   *
+   * @param {string} key - The key of the parameter.
+   *
+   * @returns {string} the key without the brackets.
+   */
+  function removeBrackets(key) {
+    return utils$1.endsWith(key, '[]') ? key.slice(0, -2) : key;
+  }
+
+  /**
+   * It takes a path, a key, and a boolean, and returns a string
+   *
+   * @param {string} path - The path to the current key.
+   * @param {string} key - The key of the current object being iterated over.
+   * @param {string} dots - If true, the key will be rendered with dots instead of brackets.
+   *
+   * @returns {string} The path to the current key.
+   */
+  function renderKey(path, key, dots) {
+    if (!path) return key;
+    return path.concat(key).map(function each(token, i) {
+      // eslint-disable-next-line no-param-reassign
+      token = removeBrackets(token);
+      return !dots && i ? '[' + token + ']' : token;
+    }).join(dots ? '.' : '');
+  }
+
+  /**
+   * If the array is an array and none of its elements are visitable, then it's a flat array.
+   *
+   * @param {Array<any>} arr - The array to check
+   *
+   * @returns {boolean}
+   */
+  function isFlatArray(arr) {
+    return utils$1.isArray(arr) && !arr.some(isVisitable);
+  }
+  var predicates = utils$1.toFlatObject(utils$1, {}, null, function filter(prop) {
+    return /^is[A-Z]/.test(prop);
+  });
+
+  /**
+   * Convert a data object to FormData
+   *
+   * @param {Object} obj
+   * @param {?Object} [formData]
+   * @param {?Object} [options]
+   * @param {Function} [options.visitor]
+   * @param {Boolean} [options.metaTokens = true]
+   * @param {Boolean} [options.dots = false]
+   * @param {?Boolean} [options.indexes = false]
+   *
+   * @returns {Object}
+   **/
+
+  /**
+   * It converts an object into a FormData object
+   *
+   * @param {Object<any, any>} obj - The object to convert to form data.
+   * @param {string} formData - The FormData object to append to.
+   * @param {Object<string, any>} options
+   *
+   * @returns
+   */
+  function toFormData(obj, formData, options) {
+    if (!utils$1.isObject(obj)) {
+      throw new TypeError('target must be an object');
+    }
+
+    // eslint-disable-next-line no-param-reassign
+    formData = formData || new (FormData)();
+
+    // eslint-disable-next-line no-param-reassign
+    options = utils$1.toFlatObject(options, {
+      metaTokens: true,
+      dots: false,
+      indexes: false
+    }, false, function defined(option, source) {
+      // eslint-disable-next-line no-eq-null,eqeqeq
+      return !utils$1.isUndefined(source[option]);
+    });
+    var metaTokens = options.metaTokens;
+    // eslint-disable-next-line no-use-before-define
+    var visitor = options.visitor || defaultVisitor;
+    var dots = options.dots;
+    var indexes = options.indexes;
+    var _Blob = options.Blob || typeof Blob !== 'undefined' && Blob;
+    var useBlob = _Blob && utils$1.isSpecCompliantForm(formData);
+    if (!utils$1.isFunction(visitor)) {
+      throw new TypeError('visitor must be a function');
+    }
+    function convertValue(value) {
+      if (value === null) return '';
+      if (utils$1.isDate(value)) {
+        return value.toISOString();
+      }
+      if (!useBlob && utils$1.isBlob(value)) {
+        throw new AxiosError('Blob is not supported. Use a Buffer instead.');
+      }
+      if (utils$1.isArrayBuffer(value) || utils$1.isTypedArray(value)) {
+        return useBlob && typeof Blob === 'function' ? new Blob([value]) : Buffer.from(value);
+      }
+      return value;
+    }
+
+    /**
+     * Default visitor.
+     *
+     * @param {*} value
+     * @param {String|Number} key
+     * @param {Array<String|Number>} path
+     * @this {FormData}
+     *
+     * @returns {boolean} return true to visit the each prop of the value recursively
+     */
+    function defaultVisitor(value, key, path) {
+      var arr = value;
+      if (value && !path && _typeof(value) === 'object') {
+        if (utils$1.endsWith(key, '{}')) {
+          // eslint-disable-next-line no-param-reassign
+          key = metaTokens ? key : key.slice(0, -2);
+          // eslint-disable-next-line no-param-reassign
+          value = JSON.stringify(value);
+        } else if (utils$1.isArray(value) && isFlatArray(value) || (utils$1.isFileList(value) || utils$1.endsWith(key, '[]')) && (arr = utils$1.toArray(value))) {
+          // eslint-disable-next-line no-param-reassign
+          key = removeBrackets(key);
+          arr.forEach(function each(el, index) {
+            !(utils$1.isUndefined(el) || el === null) && formData.append(
+            // eslint-disable-next-line no-nested-ternary
+            indexes === true ? renderKey([key], index, dots) : indexes === null ? key : key + '[]', convertValue(el));
+          });
+          return false;
+        }
+      }
+      if (isVisitable(value)) {
+        return true;
+      }
+      formData.append(renderKey(path, key, dots), convertValue(value));
+      return false;
+    }
+    var stack = [];
+    var exposedHelpers = Object.assign(predicates, {
+      defaultVisitor: defaultVisitor,
+      convertValue: convertValue,
+      isVisitable: isVisitable
+    });
+    function build(value, path) {
+      if (utils$1.isUndefined(value)) return;
+      if (stack.indexOf(value) !== -1) {
+        throw Error('Circular reference detected in ' + path.join('.'));
+      }
+      stack.push(value);
+      utils$1.forEach(value, function each(el, key) {
+        var result = !(utils$1.isUndefined(el) || el === null) && visitor.call(formData, el, utils$1.isString(key) ? key.trim() : key, path, exposedHelpers);
+        if (result === true) {
+          build(el, path ? path.concat(key) : [key]);
+        }
+      });
+      stack.pop();
+    }
+    if (!utils$1.isObject(obj)) {
+      throw new TypeError('data must be an object');
+    }
+    build(obj);
+    return formData;
+  }
+
+  /**
+   * It encodes a string by replacing all characters that are not in the unreserved set with
+   * their percent-encoded equivalents
+   *
+   * @param {string} str - The string to encode.
+   *
+   * @returns {string} The encoded string.
+   */
+  function encode$1(str) {
+    var charMap = {
+      '!': '%21',
+      "'": '%27',
+      '(': '%28',
+      ')': '%29',
+      '~': '%7E',
+      '%20': '+',
+      '%00': '\x00'
+    };
+    return encodeURIComponent(str).replace(/[!'()~]|%20|%00/g, function replacer(match) {
+      return charMap[match];
+    });
+  }
+
+  /**
+   * It takes a params object and converts it to a FormData object
+   *
+   * @param {Object<string, any>} params - The parameters to be converted to a FormData object.
+   * @param {Object<string, any>} options - The options object passed to the Axios constructor.
+   *
+   * @returns {void}
+   */
+  function AxiosURLSearchParams(params, options) {
+    this._pairs = [];
+    params && toFormData(params, this, options);
+  }
+  var prototype = AxiosURLSearchParams.prototype;
+  prototype.append = function append(name, value) {
+    this._pairs.push([name, value]);
+  };
+  prototype.toString = function toString(encoder) {
+    var _encode = encoder ? function (value) {
+      return encoder.call(this, value, encode$1);
+    } : encode$1;
+    return this._pairs.map(function each(pair) {
+      return _encode(pair[0]) + '=' + _encode(pair[1]);
+    }, '').join('&');
+  };
+
+  /**
+   * It replaces all instances of the characters `:`, `$`, `,`, `+`, `[`, and `]` with their
+   * URI encoded counterparts
+   *
+   * @param {string} val The value to be encoded.
+   *
+   * @returns {string} The encoded value.
+   */
+  function encode(val) {
+    return encodeURIComponent(val).replace(/%3A/gi, ':').replace(/%24/g, '$').replace(/%2C/gi, ',').replace(/%20/g, '+').replace(/%5B/gi, '[').replace(/%5D/gi, ']');
+  }
+
+  /**
+   * Build a URL by appending params to the end
+   *
+   * @param {string} url The base of the url (e.g., http://www.google.com)
+   * @param {object} [params] The params to be appended
+   * @param {?(object|Function)} options
+   *
+   * @returns {string} The formatted url
+   */
+  function buildURL(url, params, options) {
+    /*eslint no-param-reassign:0*/
+    if (!params) {
+      return url;
+    }
+    var _encode = options && options.encode || encode;
+    if (utils$1.isFunction(options)) {
+      options = {
+        serialize: options
+      };
+    }
+    var serializeFn = options && options.serialize;
+    var serializedParams;
+    if (serializeFn) {
+      serializedParams = serializeFn(params, options);
+    } else {
+      serializedParams = utils$1.isURLSearchParams(params) ? params.toString() : new AxiosURLSearchParams(params, options).toString(_encode);
+    }
+    if (serializedParams) {
+      var hashmarkIndex = url.indexOf("#");
+      if (hashmarkIndex !== -1) {
+        url = url.slice(0, hashmarkIndex);
+      }
+      url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;
+    }
+    return url;
+  }
+
+  var InterceptorManager = /*#__PURE__*/function () {
+    function InterceptorManager() {
+      _classCallCheck(this, InterceptorManager);
+      this.handlers = [];
+    }
+
+    /**
+     * Add a new interceptor to the stack
+     *
+     * @param {Function} fulfilled The function to handle `then` for a `Promise`
+     * @param {Function} rejected The function to handle `reject` for a `Promise`
+     *
+     * @return {Number} An ID used to remove interceptor later
+     */
+    _createClass(InterceptorManager, [{
+      key: "use",
+      value: function use(fulfilled, rejected, options) {
+        this.handlers.push({
+          fulfilled: fulfilled,
+          rejected: rejected,
+          synchronous: options ? options.synchronous : false,
+          runWhen: options ? options.runWhen : null
+        });
+        return this.handlers.length - 1;
+      }
+
+      /**
+       * Remove an interceptor from the stack
+       *
+       * @param {Number} id The ID that was returned by `use`
+       *
+       * @returns {Boolean} `true` if the interceptor was removed, `false` otherwise
+       */
+    }, {
+      key: "eject",
+      value: function eject(id) {
+        if (this.handlers[id]) {
+          this.handlers[id] = null;
+        }
+      }
+
+      /**
+       * Clear all interceptors from the stack
+       *
+       * @returns {void}
+       */
+    }, {
+      key: "clear",
+      value: function clear() {
+        if (this.handlers) {
+          this.handlers = [];
+        }
+      }
+
+      /**
+       * Iterate over all the registered interceptors
+       *
+       * This method is particularly useful for skipping over any
+       * interceptors that may have become `null` calling `eject`.
+       *
+       * @param {Function} fn The function to call for each interceptor
+       *
+       * @returns {void}
+       */
+    }, {
+      key: "forEach",
+      value: function forEach(fn) {
+        utils$1.forEach(this.handlers, function forEachHandler(h) {
+          if (h !== null) {
+            fn(h);
+          }
+        });
+      }
+    }]);
+    return InterceptorManager;
+  }();
+  var InterceptorManager$1 = InterceptorManager;
+
+  var transitionalDefaults = {
+    silentJSONParsing: true,
+    forcedJSONParsing: true,
+    clarifyTimeoutError: false
+  };
+
+  var URLSearchParams$1 = typeof URLSearchParams !== 'undefined' ? URLSearchParams : AxiosURLSearchParams;
+
+  var FormData$1 = typeof FormData !== 'undefined' ? FormData : null;
+
+  var Blob$1 = typeof Blob !== 'undefined' ? Blob : null;
+
+  var platform$1 = {
+    isBrowser: true,
+    classes: {
+      URLSearchParams: URLSearchParams$1,
+      FormData: FormData$1,
+      Blob: Blob$1
+    },
+    protocols: ['http', 'https', 'file', 'blob', 'url', 'data']
+  };
+
+  var hasBrowserEnv = typeof window !== 'undefined' && typeof document !== 'undefined';
+  var _navigator = (typeof navigator === "undefined" ? "undefined" : _typeof(navigator)) === 'object' && navigator || undefined;
+
+  /**
+   * Determine if we're running in a standard browser environment
+   *
+   * This allows axios to run in a web worker, and react-native.
+   * Both environments support XMLHttpRequest, but not fully standard globals.
+   *
+   * web workers:
+   *  typeof window -> undefined
+   *  typeof document -> undefined
+   *
+   * react-native:
+   *  navigator.product -> 'ReactNative'
+   * nativescript
+   *  navigator.product -> 'NativeScript' or 'NS'
+   *
+   * @returns {boolean}
+   */
+  var hasStandardBrowserEnv = hasBrowserEnv && (!_navigator || ['ReactNative', 'NativeScript', 'NS'].indexOf(_navigator.product) < 0);
+
+  /**
+   * Determine if we're running in a standard browser webWorker environment
+   *
+   * Although the `isStandardBrowserEnv` method indicates that
+   * `allows axios to run in a web worker`, the WebWorker will still be
+   * filtered out due to its judgment standard
+   * `typeof window !== 'undefined' && typeof document !== 'undefined'`.
+   * This leads to a problem when axios post `FormData` in webWorker
+   */
+  var hasStandardBrowserWebWorkerEnv = function () {
+    return typeof WorkerGlobalScope !== 'undefined' &&
+    // eslint-disable-next-line no-undef
+    self instanceof WorkerGlobalScope && typeof self.importScripts === 'function';
+  }();
+  var origin = hasBrowserEnv && window.location.href || 'http://localhost';
+
+  var utils = /*#__PURE__*/Object.freeze({
+    __proto__: null,
+    hasBrowserEnv: hasBrowserEnv,
+    hasStandardBrowserWebWorkerEnv: hasStandardBrowserWebWorkerEnv,
+    hasStandardBrowserEnv: hasStandardBrowserEnv,
+    navigator: _navigator,
+    origin: origin
+  });
+
+  var platform = _objectSpread2(_objectSpread2({}, utils), platform$1);
+
+  function toURLEncodedForm(data, options) {
+    return toFormData(data, new platform.classes.URLSearchParams(), Object.assign({
+      visitor: function visitor(value, key, path, helpers) {
+        if (platform.isNode && utils$1.isBuffer(value)) {
+          this.append(key, value.toString('base64'));
+          return false;
+        }
+        return helpers.defaultVisitor.apply(this, arguments);
+      }
+    }, options));
+  }
+
+  /**
+   * It takes a string like `foo[x][y][z]` and returns an array like `['foo', 'x', 'y', 'z']
+   *
+   * @param {string} name - The name of the property to get.
+   *
+   * @returns An array of strings.
+   */
+  function parsePropPath(name) {
+    // foo[x][y][z]
+    // foo.x.y.z
+    // foo-x-y-z
+    // foo x y z
+    return utils$1.matchAll(/\w+|\[(\w*)]/g, name).map(function (match) {
+      return match[0] === '[]' ? '' : match[1] || match[0];
+    });
+  }
+
+  /**
+   * Convert an array to an object.
+   *
+   * @param {Array<any>} arr - The array to convert to an object.
+   *
+   * @returns An object with the same keys and values as the array.
+   */
+  function arrayToObject(arr) {
+    var obj = {};
+    var keys = Object.keys(arr);
+    var i;
+    var len = keys.length;
+    var key;
+    for (i = 0; i < len; i++) {
+      key = keys[i];
+      obj[key] = arr[key];
+    }
+    return obj;
+  }
+
+  /**
+   * It takes a FormData object and returns a JavaScript object
+   *
+   * @param {string} formData The FormData object to convert to JSON.
+   *
+   * @returns {Object<string, any> | null} The converted object.
+   */
+  function formDataToJSON(formData) {
+    function buildPath(path, value, target, index) {
+      var name = path[index++];
+      if (name === '__proto__') return true;
+      var isNumericKey = Number.isFinite(+name);
+      var isLast = index >= path.length;
+      name = !name && utils$1.isArray(target) ? target.length : name;
+      if (isLast) {
+        if (utils$1.hasOwnProp(target, name)) {
+          target[name] = [target[name], value];
+        } else {
+          target[name] = value;
+        }
+        return !isNumericKey;
+      }
+      if (!target[name] || !utils$1.isObject(target[name])) {
+        target[name] = [];
+      }
+      var result = buildPath(path, value, target[name], index);
+      if (result && utils$1.isArray(target[name])) {
+        target[name] = arrayToObject(target[name]);
+      }
+      return !isNumericKey;
+    }
+    if (utils$1.isFormData(formData) && utils$1.isFunction(formData.entries)) {
+      var obj = {};
+      utils$1.forEachEntry(formData, function (name, value) {
+        buildPath(parsePropPath(name), value, obj, 0);
+      });
+      return obj;
+    }
+    return null;
+  }
+
+  /**
+   * It takes a string, tries to parse it, and if it fails, it returns the stringified version
+   * of the input
+   *
+   * @param {any} rawValue - The value to be stringified.
+   * @param {Function} parser - A function that parses a string into a JavaScript object.
+   * @param {Function} encoder - A function that takes a value and returns a string.
+   *
+   * @returns {string} A stringified version of the rawValue.
+   */
+  function stringifySafely(rawValue, parser, encoder) {
+    if (utils$1.isString(rawValue)) {
+      try {
+        (parser || JSON.parse)(rawValue);
+        return utils$1.trim(rawValue);
+      } catch (e) {
+        if (e.name !== 'SyntaxError') {
+          throw e;
+        }
+      }
+    }
+    return (encoder || JSON.stringify)(rawValue);
+  }
+  var defaults = {
+    transitional: transitionalDefaults,
+    adapter: ['xhr', 'http', 'fetch'],
+    transformRequest: [function transformRequest(data, headers) {
+      var contentType = headers.getContentType() || '';
+      var hasJSONContentType = contentType.indexOf('application/json') > -1;
+      var isObjectPayload = utils$1.isObject(data);
+      if (isObjectPayload && utils$1.isHTMLForm(data)) {
+        data = new FormData(data);
+      }
+      var isFormData = utils$1.isFormData(data);
+      if (isFormData) {
+        return hasJSONContentType ? JSON.stringify(formDataToJSON(data)) : data;
+      }
+      if (utils$1.isArrayBuffer(data) || utils$1.isBuffer(data) || utils$1.isStream(data) || utils$1.isFile(data) || utils$1.isBlob(data) || utils$1.isReadableStream(data)) {
+        return data;
+      }
+      if (utils$1.isArrayBufferView(data)) {
+        return data.buffer;
+      }
+      if (utils$1.isURLSearchParams(data)) {
+        headers.setContentType('application/x-www-form-urlencoded;charset=utf-8', false);
+        return data.toString();
+      }
+      var isFileList;
+      if (isObjectPayload) {
+        if (contentType.indexOf('application/x-www-form-urlencoded') > -1) {
+          return toURLEncodedForm(data, this.formSerializer).toString();
+        }
+        if ((isFileList = utils$1.isFileList(data)) || contentType.indexOf('multipart/form-data') > -1) {
+          var _FormData = this.env && this.env.FormData;
+          return toFormData(isFileList ? {
+            'files[]': data
+          } : data, _FormData && new _FormData(), this.formSerializer);
+        }
+      }
+      if (isObjectPayload || hasJSONContentType) {
+        headers.setContentType('application/json', false);
+        return stringifySafely(data);
+      }
+      return data;
+    }],
+    transformResponse: [function transformResponse(data) {
+      var transitional = this.transitional || defaults.transitional;
+      var forcedJSONParsing = transitional && transitional.forcedJSONParsing;
+      var JSONRequested = this.responseType === 'json';
+      if (utils$1.isResponse(data) || utils$1.isReadableStream(data)) {
+        return data;
+      }
+      if (data && utils$1.isString(data) && (forcedJSONParsing && !this.responseType || JSONRequested)) {
+        var silentJSONParsing = transitional && transitional.silentJSONParsing;
+        var strictJSONParsing = !silentJSONParsing && JSONRequested;
+        try {
+          return JSON.parse(data);
+        } catch (e) {
+          if (strictJSONParsing) {
+            if (e.name === 'SyntaxError') {
+              throw AxiosError.from(e, AxiosError.ERR_BAD_RESPONSE, this, null, this.response);
+            }
+            throw e;
+          }
+        }
+      }
+      return data;
+    }],
+    /**
+     * A timeout in milliseconds to abort a request. If set to 0 (default) a
+     * timeout is not created.
+     */
+    timeout: 0,
+    xsrfCookieName: 'XSRF-TOKEN',
+    xsrfHeaderName: 'X-XSRF-TOKEN',
+    maxContentLength: -1,
+    maxBodyLength: -1,
+    env: {
+      FormData: platform.classes.FormData,
+      Blob: platform.classes.Blob
+    },
+    validateStatus: function validateStatus(status) {
+      return status >= 200 && status < 300;
+    },
+    headers: {
+      common: {
+        'Accept': 'application/json, text/plain, */*',
+        'Content-Type': undefined
+      }
+    }
+  };
+  utils$1.forEach(['delete', 'get', 'head', 'post', 'put', 'patch'], function (method) {
+    defaults.headers[method] = {};
+  });
+  var defaults$1 = defaults;
+
+  // RawAxiosHeaders whose duplicates are ignored by node
+  // c.f. https://nodejs.org/api/http.html#http_message_headers
+  var ignoreDuplicateOf = utils$1.toObjectSet(['age', 'authorization', 'content-length', 'content-type', 'etag', 'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since', 'last-modified', 'location', 'max-forwards', 'proxy-authorization', 'referer', 'retry-after', 'user-agent']);
+
+  /**
+   * Parse headers into an object
+   *
+   * ```
+   * Date: Wed, 27 Aug 2014 08:58:49 GMT
+   * Content-Type: application/json
+   * Connection: keep-alive
+   * Transfer-Encoding: chunked
+   * ```
+   *
+   * @param {String} rawHeaders Headers needing to be parsed
+   *
+   * @returns {Object} Headers parsed into an object
+   */
+  var parseHeaders = (function (rawHeaders) {
+    var parsed = {};
+    var key;
+    var val;
+    var i;
+    rawHeaders && rawHeaders.split('\n').forEach(function parser(line) {
+      i = line.indexOf(':');
+      key = line.substring(0, i).trim().toLowerCase();
+      val = line.substring(i + 1).trim();
+      if (!key || parsed[key] && ignoreDuplicateOf[key]) {
+        return;
+      }
+      if (key === 'set-cookie') {
+        if (parsed[key]) {
+          parsed[key].push(val);
+        } else {
+          parsed[key] = [val];
+        }
+      } else {
+        parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;
+      }
+    });
+    return parsed;
+  });
+
+  var $internals = Symbol('internals');
+  function normalizeHeader(header) {
+    return header && String(header).trim().toLowerCase();
+  }
+  function normalizeValue(value) {
+    if (value === false || value == null) {
+      return value;
+    }
+    return utils$1.isArray(value) ? value.map(normalizeValue) : String(value);
+  }
+  function parseTokens(str) {
+    var tokens = Object.create(null);
+    var tokensRE = /([^\s,;=]+)\s*(?:=\s*([^,;]+))?/g;
+    var match;
+    while (match = tokensRE.exec(str)) {
+      tokens[match[1]] = match[2];
+    }
+    return tokens;
+  }
+  var isValidHeaderName = function isValidHeaderName(str) {
+    return /^[-_a-zA-Z0-9^`|~,!#$%&'*+.]+$/.test(str.trim());
+  };
+  function matchHeaderValue(context, value, header, filter, isHeaderNameFilter) {
+    if (utils$1.isFunction(filter)) {
+      return filter.call(this, value, header);
+    }
+    if (isHeaderNameFilter) {
+      value = header;
+    }
+    if (!utils$1.isString(value)) return;
+    if (utils$1.isString(filter)) {
+      return value.indexOf(filter) !== -1;
+    }
+    if (utils$1.isRegExp(filter)) {
+      return filter.test(value);
+    }
+  }
+  function formatHeader(header) {
+    return header.trim().toLowerCase().replace(/([a-z\d])(\w*)/g, function (w, _char, str) {
+      return _char.toUpperCase() + str;
+    });
+  }
+  function buildAccessors(obj, header) {
+    var accessorName = utils$1.toCamelCase(' ' + header);
+    ['get', 'set', 'has'].forEach(function (methodName) {
+      Object.defineProperty(obj, methodName + accessorName, {
+        value: function value(arg1, arg2, arg3) {
+          return this[methodName].call(this, header, arg1, arg2, arg3);
+        },
+        configurable: true
+      });
+    });
+  }
+  var AxiosHeaders = /*#__PURE__*/function (_Symbol$iterator, _Symbol$toStringTag) {
+    function AxiosHeaders(headers) {
+      _classCallCheck(this, AxiosHeaders);
+      headers && this.set(headers);
+    }
+    _createClass(AxiosHeaders, [{
+      key: "set",
+      value: function set(header, valueOrRewrite, rewrite) {
+        var self = this;
+        function setHeader(_value, _header, _rewrite) {
+          var lHeader = normalizeHeader(_header);
+          if (!lHeader) {
+            throw new Error('header name must be a non-empty string');
+          }
+          var key = utils$1.findKey(self, lHeader);
+          if (!key || self[key] === undefined || _rewrite === true || _rewrite === undefined && self[key] !== false) {
+            self[key || _header] = normalizeValue(_value);
+          }
+        }
+        var setHeaders = function setHeaders(headers, _rewrite) {
+          return utils$1.forEach(headers, function (_value, _header) {
+            return setHeader(_value, _header, _rewrite);
+          });
+        };
+        if (utils$1.isPlainObject(header) || header instanceof this.constructor) {
+          setHeaders(header, valueOrRewrite);
+        } else if (utils$1.isString(header) && (header = header.trim()) && !isValidHeaderName(header)) {
+          setHeaders(parseHeaders(header), valueOrRewrite);
+        } else if (utils$1.isHeaders(header)) {
+          var _iterator = _createForOfIteratorHelper(header.entries()),
+            _step;
+          try {
+            for (_iterator.s(); !(_step = _iterator.n()).done;) {
+              var _step$value = _slicedToArray(_step.value, 2),
+                key = _step$value[0],
+                value = _step$value[1];
+              setHeader(value, key, rewrite);
+            }
+          } catch (err) {
+            _iterator.e(err);
+          } finally {
+            _iterator.f();
+          }
+        } else {
+          header != null && setHeader(valueOrRewrite, header, rewrite);
+        }
+        return this;
+      }
+    }, {
+      key: "get",
+      value: function get(header, parser) {
+        header = normalizeHeader(header);
+        if (header) {
+          var key = utils$1.findKey(this, header);
+          if (key) {
+            var value = this[key];
+            if (!parser) {
+              return value;
+            }
+            if (parser === true) {
+              return parseTokens(value);
+            }
+            if (utils$1.isFunction(parser)) {
+              return parser.call(this, value, key);
+            }
+            if (utils$1.isRegExp(parser)) {
+              return parser.exec(value);
+            }
+            throw new TypeError('parser must be boolean|regexp|function');
+          }
+        }
+      }
+    }, {
+      key: "has",
+      value: function has(header, matcher) {
+        header = normalizeHeader(header);
+        if (header) {
+          var key = utils$1.findKey(this, header);
+          return !!(key && this[key] !== undefined && (!matcher || matchHeaderValue(this, this[key], key, matcher)));
+        }
+        return false;
+      }
+    }, {
+      key: "delete",
+      value: function _delete(header, matcher) {
+        var self = this;
+        var deleted = false;
+        function deleteHeader(_header) {
+          _header = normalizeHeader(_header);
+          if (_header) {
+            var key = utils$1.findKey(self, _header);
+            if (key && (!matcher || matchHeaderValue(self, self[key], key, matcher))) {
+              delete self[key];
+              deleted = true;
+            }
+          }
+        }
+        if (utils$1.isArray(header)) {
+          header.forEach(deleteHeader);
+        } else {
+          deleteHeader(header);
+        }
+        return deleted;
+      }
+    }, {
+      key: "clear",
+      value: function clear(matcher) {
+        var keys = Object.keys(this);
+        var i = keys.length;
+        var deleted = false;
+        while (i--) {
+          var key = keys[i];
+          if (!matcher || matchHeaderValue(this, this[key], key, matcher, true)) {
+            delete this[key];
+            deleted = true;
+          }
+        }
+        return deleted;
+      }
+    }, {
+      key: "normalize",
+      value: function normalize(format) {
+        var self = this;
+        var headers = {};
+        utils$1.forEach(this, function (value, header) {
+          var key = utils$1.findKey(headers, header);
+          if (key) {
+            self[key] = normalizeValue(value);
+            delete self[header];
+            return;
+          }
+          var normalized = format ? formatHeader(header) : String(header).trim();
+          if (normalized !== header) {
+            delete self[header];
+          }
+          self[normalized] = normalizeValue(value);
+          headers[normalized] = true;
+        });
+        return this;
+      }
+    }, {
+      key: "concat",
+      value: function concat() {
+        var _this$constructor;
+        for (var _len = arguments.length, targets = new Array(_len), _key = 0; _key < _len; _key++) {
+          targets[_key] = arguments[_key];
+        }
+        return (_this$constructor = this.constructor).concat.apply(_this$constructor, [this].concat(targets));
+      }
+    }, {
+      key: "toJSON",
+      value: function toJSON(asStrings) {
+        var obj = Object.create(null);
+        utils$1.forEach(this, function (value, header) {
+          value != null && value !== false && (obj[header] = asStrings && utils$1.isArray(value) ? value.join(', ') : value);
+        });
+        return obj;
+      }
+    }, {
+      key: _Symbol$iterator,
+      value: function value() {
+        return Object.entries(this.toJSON())[Symbol.iterator]();
+      }
+    }, {
+      key: "toString",
+      value: function toString() {
+        return Object.entries(this.toJSON()).map(function (_ref) {
+          var _ref2 = _slicedToArray(_ref, 2),
+            header = _ref2[0],
+            value = _ref2[1];
+          return header + ': ' + value;
+        }).join('\n');
+      }
+    }, {
+      key: _Symbol$toStringTag,
+      get: function get() {
+        return 'AxiosHeaders';
+      }
+    }], [{
+      key: "from",
+      value: function from(thing) {
+        return thing instanceof this ? thing : new this(thing);
+      }
+    }, {
+      key: "concat",
+      value: function concat(first) {
+        var computed = new this(first);
+        for (var _len2 = arguments.length, targets = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
+          targets[_key2 - 1] = arguments[_key2];
+        }
+        targets.forEach(function (target) {
+          return computed.set(target);
+        });
+        return computed;
+      }
+    }, {
+      key: "accessor",
+      value: function accessor(header) {
+        var internals = this[$internals] = this[$internals] = {
+          accessors: {}
+        };
+        var accessors = internals.accessors;
+        var prototype = this.prototype;
+        function defineAccessor(_header) {
+          var lHeader = normalizeHeader(_header);
+          if (!accessors[lHeader]) {
+            buildAccessors(prototype, _header);
+            accessors[lHeader] = true;
+          }
+        }
+        utils$1.isArray(header) ? header.forEach(defineAccessor) : defineAccessor(header);
+        return this;
+      }
+    }]);
+    return AxiosHeaders;
+  }(Symbol.iterator, Symbol.toStringTag);
+  AxiosHeaders.accessor(['Content-Type', 'Content-Length', 'Accept', 'Accept-Encoding', 'User-Agent', 'Authorization']);
+
+  // reserved names hotfix
+  utils$1.reduceDescriptors(AxiosHeaders.prototype, function (_ref3, key) {
+    var value = _ref3.value;
+    var mapped = key[0].toUpperCase() + key.slice(1); // map `set` => `Set`
+    return {
+      get: function get() {
+        return value;
+      },
+      set: function set(headerValue) {
+        this[mapped] = headerValue;
+      }
+    };
+  });
+  utils$1.freezeMethods(AxiosHeaders);
+  var AxiosHeaders$1 = AxiosHeaders;
+
+  /**
+   * Transform the data for a request or a response
+   *
+   * @param {Array|Function} fns A single function or Array of functions
+   * @param {?Object} response The response object
+   *
+   * @returns {*} The resulting transformed data
+   */
+  function transformData(fns, response) {
+    var config = this || defaults$1;
+    var context = response || config;
+    var headers = AxiosHeaders$1.from(context.headers);
+    var data = context.data;
+    utils$1.forEach(fns, function transform(fn) {
+      data = fn.call(config, data, headers.normalize(), response ? response.status : undefined);
+    });
+    headers.normalize();
+    return data;
+  }
+
+  function isCancel(value) {
+    return !!(value && value.__CANCEL__);
+  }
+
+  /**
+   * A `CanceledError` is an object that is thrown when an operation is canceled.
+   *
+   * @param {string=} message The message.
+   * @param {Object=} config The config.
+   * @param {Object=} request The request.
+   *
+   * @returns {CanceledError} The created error.
+   */
+  function CanceledError(message, config, request) {
+    // eslint-disable-next-line no-eq-null,eqeqeq
+    AxiosError.call(this, message == null ? 'canceled' : message, AxiosError.ERR_CANCELED, config, request);
+    this.name = 'CanceledError';
+  }
+  utils$1.inherits(CanceledError, AxiosError, {
+    __CANCEL__: true
+  });
+
+  /**
+   * Resolve or reject a Promise based on response status.
+   *
+   * @param {Function} resolve A function that resolves the promise.
+   * @param {Function} reject A function that rejects the promise.
+   * @param {object} response The response.
+   *
+   * @returns {object} The response.
+   */
+  function settle(resolve, reject, response) {
+    var validateStatus = response.config.validateStatus;
+    if (!response.status || !validateStatus || validateStatus(response.status)) {
+      resolve(response);
+    } else {
+      reject(new AxiosError('Request failed with status code ' + response.status, [AxiosError.ERR_BAD_REQUEST, AxiosError.ERR_BAD_RESPONSE][Math.floor(response.status / 100) - 4], response.config, response.request, response));
+    }
+  }
+
+  function parseProtocol(url) {
+    var match = /^([-+\w]{1,25})(:?\/\/|:)/.exec(url);
+    return match && match[1] || '';
+  }
+
+  /**
+   * Calculate data maxRate
+   * @param {Number} [samplesCount= 10]
+   * @param {Number} [min= 1000]
+   * @returns {Function}
+   */
+  function speedometer(samplesCount, min) {
+    samplesCount = samplesCount || 10;
+    var bytes = new Array(samplesCount);
+    var timestamps = new Array(samplesCount);
+    var head = 0;
+    var tail = 0;
+    var firstSampleTS;
+    min = min !== undefined ? min : 1000;
+    return function push(chunkLength) {
+      var now = Date.now();
+      var startedAt = timestamps[tail];
+      if (!firstSampleTS) {
+        firstSampleTS = now;
+      }
+      bytes[head] = chunkLength;
+      timestamps[head] = now;
+      var i = tail;
+      var bytesCount = 0;
+      while (i !== head) {
+        bytesCount += bytes[i++];
+        i = i % samplesCount;
+      }
+      head = (head + 1) % samplesCount;
+      if (head === tail) {
+        tail = (tail + 1) % samplesCount;
+      }
+      if (now - firstSampleTS < min) {
+        return;
+      }
+      var passed = startedAt && now - startedAt;
+      return passed ? Math.round(bytesCount * 1000 / passed) : undefined;
+    };
+  }
+
+  /**
+   * Throttle decorator
+   * @param {Function} fn
+   * @param {Number} freq
+   * @return {Function}
+   */
+  function throttle(fn, freq) {
+    var timestamp = 0;
+    var threshold = 1000 / freq;
+    var lastArgs;
+    var timer;
+    var invoke = function invoke(args) {
+      var now = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : Date.now();
+      timestamp = now;
+      lastArgs = null;
+      if (timer) {
+        clearTimeout(timer);
+        timer = null;
+      }
+      fn.apply(null, args);
+    };
+    var throttled = function throttled() {
+      var now = Date.now();
+      var passed = now - timestamp;
+      for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+        args[_key] = arguments[_key];
+      }
+      if (passed >= threshold) {
+        invoke(args, now);
+      } else {
+        lastArgs = args;
+        if (!timer) {
+          timer = setTimeout(function () {
+            timer = null;
+            invoke(lastArgs);
+          }, threshold - passed);
+        }
+      }
+    };
+    var flush = function flush() {
+      return lastArgs && invoke(lastArgs);
+    };
+    return [throttled, flush];
+  }
+
+  var progressEventReducer = function progressEventReducer(listener, isDownloadStream) {
+    var freq = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 3;
+    var bytesNotified = 0;
+    var _speedometer = speedometer(50, 250);
+    return throttle(function (e) {
+      var loaded = e.loaded;
+      var total = e.lengthComputable ? e.total : undefined;
+      var progressBytes = loaded - bytesNotified;
+      var rate = _speedometer(progressBytes);
+      var inRange = loaded <= total;
+      bytesNotified = loaded;
+      var data = _defineProperty({
+        loaded: loaded,
+        total: total,
+        progress: total ? loaded / total : undefined,
+        bytes: progressBytes,
+        rate: rate ? rate : undefined,
+        estimated: rate && total && inRange ? (total - loaded) / rate : undefined,
+        event: e,
+        lengthComputable: total != null
+      }, isDownloadStream ? 'download' : 'upload', true);
+      listener(data);
+    }, freq);
+  };
+  var progressEventDecorator = function progressEventDecorator(total, throttled) {
+    var lengthComputable = total != null;
+    return [function (loaded) {
+      return throttled[0]({
+        lengthComputable: lengthComputable,
+        total: total,
+        loaded: loaded
+      });
+    }, throttled[1]];
+  };
+  var asyncDecorator = function asyncDecorator(fn) {
+    return function () {
+      for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+        args[_key] = arguments[_key];
+      }
+      return utils$1.asap(function () {
+        return fn.apply(void 0, args);
+      });
+    };
+  };
+
+  var isURLSameOrigin = platform.hasStandardBrowserEnv ? function (origin, isMSIE) {
+    return function (url) {
+      url = new URL(url, platform.origin);
+      return origin.protocol === url.protocol && origin.host === url.host && (isMSIE || origin.port === url.port);
+    };
+  }(new URL(platform.origin), platform.navigator && /(msie|trident)/i.test(platform.navigator.userAgent)) : function () {
+    return true;
+  };
+
+  var cookies = platform.hasStandardBrowserEnv ?
+  // Standard browser envs support document.cookie
+  {
+    write: function write(name, value, expires, path, domain, secure) {
+      var cookie = [name + '=' + encodeURIComponent(value)];
+      utils$1.isNumber(expires) && cookie.push('expires=' + new Date(expires).toGMTString());
+      utils$1.isString(path) && cookie.push('path=' + path);
+      utils$1.isString(domain) && cookie.push('domain=' + domain);
+      secure === true && cookie.push('secure');
+      document.cookie = cookie.join('; ');
+    },
+    read: function read(name) {
+      var match = document.cookie.match(new RegExp('(^|;\\s*)(' + name + ')=([^;]*)'));
+      return match ? decodeURIComponent(match[3]) : null;
+    },
+    remove: function remove(name) {
+      this.write(name, '', Date.now() - 86400000);
+    }
+  } :
+  // Non-standard browser env (web workers, react-native) lack needed support.
+  {
+    write: function write() {},
+    read: function read() {
+      return null;
+    },
+    remove: function remove() {}
+  };
+
+  /**
+   * Determines whether the specified URL is absolute
+   *
+   * @param {string} url The URL to test
+   *
+   * @returns {boolean} True if the specified URL is absolute, otherwise false
+   */
+  function isAbsoluteURL(url) {
+    // A URL is considered absolute if it begins with "<scheme>://" or "//" (protocol-relative URL).
+    // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed
+    // by any combination of letters, digits, plus, period, or hyphen.
+    return /^([a-z][a-z\d+\-.]*:)?\/\//i.test(url);
+  }
+
+  /**
+   * Creates a new URL by combining the specified URLs
+   *
+   * @param {string} baseURL The base URL
+   * @param {string} relativeURL The relative URL
+   *
+   * @returns {string} The combined URL
+   */
+  function combineURLs(baseURL, relativeURL) {
+    return relativeURL ? baseURL.replace(/\/?\/$/, '') + '/' + relativeURL.replace(/^\/+/, '') : baseURL;
+  }
+
+  /**
+   * Creates a new URL by combining the baseURL with the requestedURL,
+   * only when the requestedURL is not already an absolute URL.
+   * If the requestURL is absolute, this function returns the requestedURL untouched.
+   *
+   * @param {string} baseURL The base URL
+   * @param {string} requestedURL Absolute or relative URL to combine
+   *
+   * @returns {string} The combined full path
+   */
+  function buildFullPath(baseURL, requestedURL) {
+    if (baseURL && !isAbsoluteURL(requestedURL)) {
+      return combineURLs(baseURL, requestedURL);
+    }
+    return requestedURL;
+  }
+
+  var headersToObject = function headersToObject(thing) {
+    return thing instanceof AxiosHeaders$1 ? _objectSpread2({}, thing) : thing;
+  };
+
+  /**
+   * Config-specific merge-function which creates a new config-object
+   * by merging two configuration objects together.
+   *
+   * @param {Object} config1
+   * @param {Object} config2
+   *
+   * @returns {Object} New object resulting from merging config2 to config1
+   */
+  function mergeConfig(config1, config2) {
+    // eslint-disable-next-line no-param-reassign
+    config2 = config2 || {};
+    var config = {};
+    function getMergedValue(target, source, prop, caseless) {
+      if (utils$1.isPlainObject(target) && utils$1.isPlainObject(source)) {
+        return utils$1.merge.call({
+          caseless: caseless
+        }, target, source);
+      } else if (utils$1.isPlainObject(source)) {
+        return utils$1.merge({}, source);
+      } else if (utils$1.isArray(source)) {
+        return source.slice();
+      }
+      return source;
+    }
+
+    // eslint-disable-next-line consistent-return
+    function mergeDeepProperties(a, b, prop, caseless) {
+      if (!utils$1.isUndefined(b)) {
+        return getMergedValue(a, b, prop, caseless);
+      } else if (!utils$1.isUndefined(a)) {
+        return getMergedValue(undefined, a, prop, caseless);
+      }
+    }
+
+    // eslint-disable-next-line consistent-return
+    function valueFromConfig2(a, b) {
+      if (!utils$1.isUndefined(b)) {
+        return getMergedValue(undefined, b);
+      }
+    }
+
+    // eslint-disable-next-line consistent-return
+    function defaultToConfig2(a, b) {
+      if (!utils$1.isUndefined(b)) {
+        return getMergedValue(undefined, b);
+      } else if (!utils$1.isUndefined(a)) {
+        return getMergedValue(undefined, a);
+      }
+    }
+
+    // eslint-disable-next-line consistent-return
+    function mergeDirectKeys(a, b, prop) {
+      if (prop in config2) {
+        return getMergedValue(a, b);
+      } else if (prop in config1) {
+        return getMergedValue(undefined, a);
+      }
+    }
+    var mergeMap = {
+      url: valueFromConfig2,
+      method: valueFromConfig2,
+      data: valueFromConfig2,
+      baseURL: defaultToConfig2,
+      transformRequest: defaultToConfig2,
+      transformResponse: defaultToConfig2,
+      paramsSerializer: defaultToConfig2,
+      timeout: defaultToConfig2,
+      timeoutMessage: defaultToConfig2,
+      withCredentials: defaultToConfig2,
+      withXSRFToken: defaultToConfig2,
+      adapter: defaultToConfig2,
+      responseType: defaultToConfig2,
+      xsrfCookieName: defaultToConfig2,
+      xsrfHeaderName: defaultToConfig2,
+      onUploadProgress: defaultToConfig2,
+      onDownloadProgress: defaultToConfig2,
+      decompress: defaultToConfig2,
+      maxContentLength: defaultToConfig2,
+      maxBodyLength: defaultToConfig2,
+      beforeRedirect: defaultToConfig2,
+      transport: defaultToConfig2,
+      httpAgent: defaultToConfig2,
+      httpsAgent: defaultToConfig2,
+      cancelToken: defaultToConfig2,
+      socketPath: defaultToConfig2,
+      responseEncoding: defaultToConfig2,
+      validateStatus: mergeDirectKeys,
+      headers: function headers(a, b, prop) {
+        return mergeDeepProperties(headersToObject(a), headersToObject(b), prop, true);
+      }
+    };
+    utils$1.forEach(Object.keys(Object.assign({}, config1, config2)), function computeConfigValue(prop) {
+      var merge = mergeMap[prop] || mergeDeepProperties;
+      var configValue = merge(config1[prop], config2[prop], prop);
+      utils$1.isUndefined(configValue) && merge !== mergeDirectKeys || (config[prop] = configValue);
+    });
+    return config;
+  }
+
+  var resolveConfig = (function (config) {
+    var newConfig = mergeConfig({}, config);
+    var data = newConfig.data,
+      withXSRFToken = newConfig.withXSRFToken,
+      xsrfHeaderName = newConfig.xsrfHeaderName,
+      xsrfCookieName = newConfig.xsrfCookieName,
+      headers = newConfig.headers,
+      auth = newConfig.auth;
+    newConfig.headers = headers = AxiosHeaders$1.from(headers);
+    newConfig.url = buildURL(buildFullPath(newConfig.baseURL, newConfig.url), config.params, config.paramsSerializer);
+
+    // HTTP basic authentication
+    if (auth) {
+      headers.set('Authorization', 'Basic ' + btoa((auth.username || '') + ':' + (auth.password ? unescape(encodeURIComponent(auth.password)) : '')));
+    }
+    var contentType;
+    if (utils$1.isFormData(data)) {
+      if (platform.hasStandardBrowserEnv || platform.hasStandardBrowserWebWorkerEnv) {
+        headers.setContentType(undefined); // Let the browser set it
+      } else if ((contentType = headers.getContentType()) !== false) {
+        // fix semicolon duplication issue for ReactNative FormData implementation
+        var _ref = contentType ? contentType.split(';').map(function (token) {
+            return token.trim();
+          }).filter(Boolean) : [],
+          _ref2 = _toArray(_ref),
+          type = _ref2[0],
+          tokens = _ref2.slice(1);
+        headers.setContentType([type || 'multipart/form-data'].concat(_toConsumableArray(tokens)).join('; '));
+      }
+    }
+
+    // Add xsrf header
+    // This is only done if running in a standard browser environment.
+    // Specifically not if we're in a web worker, or react-native.
+
+    if (platform.hasStandardBrowserEnv) {
+      withXSRFToken && utils$1.isFunction(withXSRFToken) && (withXSRFToken = withXSRFToken(newConfig));
+      if (withXSRFToken || withXSRFToken !== false && isURLSameOrigin(newConfig.url)) {
+        // Add xsrf header
+        var xsrfValue = xsrfHeaderName && xsrfCookieName && cookies.read(xsrfCookieName);
+        if (xsrfValue) {
+          headers.set(xsrfHeaderName, xsrfValue);
+        }
+      }
+    }
+    return newConfig;
+  });
+
+  var isXHRAdapterSupported = typeof XMLHttpRequest !== 'undefined';
+  var xhrAdapter = isXHRAdapterSupported && function (config) {
+    return new Promise(function dispatchXhrRequest(resolve, reject) {
+      var _config = resolveConfig(config);
+      var requestData = _config.data;
+      var requestHeaders = AxiosHeaders$1.from(_config.headers).normalize();
+      var responseType = _config.responseType,
+        onUploadProgress = _config.onUploadProgress,
+        onDownloadProgress = _config.onDownloadProgress;
+      var onCanceled;
+      var uploadThrottled, downloadThrottled;
+      var flushUpload, flushDownload;
+      function done() {
+        flushUpload && flushUpload(); // flush events
+        flushDownload && flushDownload(); // flush events
+
+        _config.cancelToken && _config.cancelToken.unsubscribe(onCanceled);
+        _config.signal && _config.signal.removeEventListener('abort', onCanceled);
+      }
+      var request = new XMLHttpRequest();
+      request.open(_config.method.toUpperCase(), _config.url, true);
+
+      // Set the request timeout in MS
+      request.timeout = _config.timeout;
+      function onloadend() {
+        if (!request) {
+          return;
+        }
+        // Prepare the response
+        var responseHeaders = AxiosHeaders$1.from('getAllResponseHeaders' in request && request.getAllResponseHeaders());
+        var responseData = !responseType || responseType === 'text' || responseType === 'json' ? request.responseText : request.response;
+        var response = {
+          data: responseData,
+          status: request.status,
+          statusText: request.statusText,
+          headers: responseHeaders,
+          config: config,
+          request: request
+        };
+        settle(function _resolve(value) {
+          resolve(value);
+          done();
+        }, function _reject(err) {
+          reject(err);
+          done();
+        }, response);
+
+        // Clean up request
+        request = null;
+      }
+      if ('onloadend' in request) {
+        // Use onloadend if available
+        request.onloadend = onloadend;
+      } else {
+        // Listen for ready state to emulate onloadend
+        request.onreadystatechange = function handleLoad() {
+          if (!request || request.readyState !== 4) {
+            return;
+          }
+
+          // The request errored out and we didn't get a response, this will be
+          // handled by onerror instead
+          // With one exception: request that using file: protocol, most browsers
+          // will return status as 0 even though it's a successful request
+          if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {
+            return;
+          }
+          // readystate handler is calling before onerror or ontimeout handlers,
+          // so we should call onloadend on the next 'tick'
+          setTimeout(onloadend);
+        };
+      }
+
+      // Handle browser request cancellation (as opposed to a manual cancellation)
+      request.onabort = function handleAbort() {
+        if (!request) {
+          return;
+        }
+        reject(new AxiosError('Request aborted', AxiosError.ECONNABORTED, config, request));
+
+        // Clean up request
+        request = null;
+      };
+
+      // Handle low level network errors
+      request.onerror = function handleError() {
+        // Real errors are hidden from us by the browser
+        // onerror should only fire if it's a network error
+        reject(new AxiosError('Network Error', AxiosError.ERR_NETWORK, config, request));
+
+        // Clean up request
+        request = null;
+      };
+
+      // Handle timeout
+      request.ontimeout = function handleTimeout() {
+        var timeoutErrorMessage = _config.timeout ? 'timeout of ' + _config.timeout + 'ms exceeded' : 'timeout exceeded';
+        var transitional = _config.transitional || transitionalDefaults;
+        if (_config.timeoutErrorMessage) {
+          timeoutErrorMessage = _config.timeoutErrorMessage;
+        }
+        reject(new AxiosError(timeoutErrorMessage, transitional.clarifyTimeoutError ? AxiosError.ETIMEDOUT : AxiosError.ECONNABORTED, config, request));
+
+        // Clean up request
+        request = null;
+      };
+
+      // Remove Content-Type if data is undefined
+      requestData === undefined && requestHeaders.setContentType(null);
+
+      // Add headers to the request
+      if ('setRequestHeader' in request) {
+        utils$1.forEach(requestHeaders.toJSON(), function setRequestHeader(val, key) {
+          request.setRequestHeader(key, val);
+        });
+      }
+
+      // Add withCredentials to request if needed
+      if (!utils$1.isUndefined(_config.withCredentials)) {
+        request.withCredentials = !!_config.withCredentials;
+      }
+
+      // Add responseType to request if needed
+      if (responseType && responseType !== 'json') {
+        request.responseType = _config.responseType;
+      }
+
+      // Handle progress if needed
+      if (onDownloadProgress) {
+        var _progressEventReducer = progressEventReducer(onDownloadProgress, true);
+        var _progressEventReducer2 = _slicedToArray(_progressEventReducer, 2);
+        downloadThrottled = _progressEventReducer2[0];
+        flushDownload = _progressEventReducer2[1];
+        request.addEventListener('progress', downloadThrottled);
+      }
+
+      // Not all browsers support upload events
+      if (onUploadProgress && request.upload) {
+        var _progressEventReducer3 = progressEventReducer(onUploadProgress);
+        var _progressEventReducer4 = _slicedToArray(_progressEventReducer3, 2);
+        uploadThrottled = _progressEventReducer4[0];
+        flushUpload = _progressEventReducer4[1];
+        request.upload.addEventListener('progress', uploadThrottled);
+        request.upload.addEventListener('loadend', flushUpload);
+      }
+      if (_config.cancelToken || _config.signal) {
+        // Handle cancellation
+        // eslint-disable-next-line func-names
+        onCanceled = function onCanceled(cancel) {
+          if (!request) {
+            return;
+          }
+          reject(!cancel || cancel.type ? new CanceledError(null, config, request) : cancel);
+          request.abort();
+          request = null;
+        };
+        _config.cancelToken && _config.cancelToken.subscribe(onCanceled);
+        if (_config.signal) {
+          _config.signal.aborted ? onCanceled() : _config.signal.addEventListener('abort', onCanceled);
+        }
+      }
+      var protocol = parseProtocol(_config.url);
+      if (protocol && platform.protocols.indexOf(protocol) === -1) {
+        reject(new AxiosError('Unsupported protocol ' + protocol + ':', AxiosError.ERR_BAD_REQUEST, config));
+        return;
+      }
+
+      // Send the request
+      request.send(requestData || null);
+    });
+  };
+
+  var composeSignals = function composeSignals(signals, timeout) {
+    var _signals = signals = signals ? signals.filter(Boolean) : [],
+      length = _signals.length;
+    if (timeout || length) {
+      var controller = new AbortController();
+      var aborted;
+      var onabort = function onabort(reason) {
+        if (!aborted) {
+          aborted = true;
+          unsubscribe();
+          var err = reason instanceof Error ? reason : this.reason;
+          controller.abort(err instanceof AxiosError ? err : new CanceledError(err instanceof Error ? err.message : err));
+        }
+      };
+      var timer = timeout && setTimeout(function () {
+        timer = null;
+        onabort(new AxiosError("timeout ".concat(timeout, " of ms exceeded"), AxiosError.ETIMEDOUT));
+      }, timeout);
+      var unsubscribe = function unsubscribe() {
+        if (signals) {
+          timer && clearTimeout(timer);
+          timer = null;
+          signals.forEach(function (signal) {
+            signal.unsubscribe ? signal.unsubscribe(onabort) : signal.removeEventListener('abort', onabort);
+          });
+          signals = null;
+        }
+      };
+      signals.forEach(function (signal) {
+        return signal.addEventListener('abort', onabort);
+      });
+      var signal = controller.signal;
+      signal.unsubscribe = function () {
+        return utils$1.asap(unsubscribe);
+      };
+      return signal;
+    }
+  };
+  var composeSignals$1 = composeSignals;
+
+  var streamChunk = /*#__PURE__*/_regeneratorRuntime().mark(function streamChunk(chunk, chunkSize) {
+    var len, pos, end;
+    return _regeneratorRuntime().wrap(function streamChunk$(_context) {
+      while (1) switch (_context.prev = _context.next) {
+        case 0:
+          len = chunk.byteLength;
+          if (!(!chunkSize || len < chunkSize)) {
+            _context.next = 5;
+            break;
+          }
+          _context.next = 4;
+          return chunk;
+        case 4:
+          return _context.abrupt("return");
+        case 5:
+          pos = 0;
+        case 6:
+          if (!(pos < len)) {
+            _context.next = 13;
+            break;
+          }
+          end = pos + chunkSize;
+          _context.next = 10;
+          return chunk.slice(pos, end);
+        case 10:
+          pos = end;
+          _context.next = 6;
+          break;
+        case 13:
+        case "end":
+          return _context.stop();
+      }
+    }, streamChunk);
+  });
+  var readBytes = /*#__PURE__*/function () {
+    var _ref = _wrapAsyncGenerator( /*#__PURE__*/_regeneratorRuntime().mark(function _callee(iterable, chunkSize) {
+      var _iteratorAbruptCompletion, _didIteratorError, _iteratorError, _iterator, _step, chunk;
+      return _regeneratorRuntime().wrap(function _callee$(_context2) {
+        while (1) switch (_context2.prev = _context2.next) {
+          case 0:
+            _iteratorAbruptCompletion = false;
+            _didIteratorError = false;
+            _context2.prev = 2;
+            _iterator = _asyncIterator(readStream(iterable));
+          case 4:
+            _context2.next = 6;
+            return _awaitAsyncGenerator(_iterator.next());
+          case 6:
+            if (!(_iteratorAbruptCompletion = !(_step = _context2.sent).done)) {
+              _context2.next = 12;
+              break;
+            }
+            chunk = _step.value;
+            return _context2.delegateYield(_asyncGeneratorDelegate(_asyncIterator(streamChunk(chunk, chunkSize))), "t0", 9);
+          case 9:
+            _iteratorAbruptCompletion = false;
+            _context2.next = 4;
+            break;
+          case 12:
+            _context2.next = 18;
+            break;
+          case 14:
+            _context2.prev = 14;
+            _context2.t1 = _context2["catch"](2);
+            _didIteratorError = true;
+            _iteratorError = _context2.t1;
+          case 18:
+            _context2.prev = 18;
+            _context2.prev = 19;
+            if (!(_iteratorAbruptCompletion && _iterator["return"] != null)) {
+              _context2.next = 23;
+              break;
+            }
+            _context2.next = 23;
+            return _awaitAsyncGenerator(_iterator["return"]());
+          case 23:
+            _context2.prev = 23;
+            if (!_didIteratorError) {
+              _context2.next = 26;
+              break;
+            }
+            throw _iteratorError;
+          case 26:
+            return _context2.finish(23);
+          case 27:
+            return _context2.finish(18);
+          case 28:
+          case "end":
+            return _context2.stop();
+        }
+      }, _callee, null, [[2, 14, 18, 28], [19,, 23, 27]]);
+    }));
+    return function readBytes(_x, _x2) {
+      return _ref.apply(this, arguments);
+    };
+  }();
+  var readStream = /*#__PURE__*/function () {
+    var _ref2 = _wrapAsyncGenerator( /*#__PURE__*/_regeneratorRuntime().mark(function _callee2(stream) {
+      var reader, _yield$_awaitAsyncGen, done, value;
+      return _regeneratorRuntime().wrap(function _callee2$(_context3) {
+        while (1) switch (_context3.prev = _context3.next) {
+          case 0:
+            if (!stream[Symbol.asyncIterator]) {
+              _context3.next = 3;
+              break;
+            }
+            return _context3.delegateYield(_asyncGeneratorDelegate(_asyncIterator(stream)), "t0", 2);
+          case 2:
+            return _context3.abrupt("return");
+          case 3:
+            reader = stream.getReader();
+            _context3.prev = 4;
+          case 5:
+            _context3.next = 7;
+            return _awaitAsyncGenerator(reader.read());
+          case 7:
+            _yield$_awaitAsyncGen = _context3.sent;
+            done = _yield$_awaitAsyncGen.done;
+            value = _yield$_awaitAsyncGen.value;
+            if (!done) {
+              _context3.next = 12;
+              break;
+            }
+            return _context3.abrupt("break", 16);
+          case 12:
+            _context3.next = 14;
+            return value;
+          case 14:
+            _context3.next = 5;
+            break;
+          case 16:
+            _context3.prev = 16;
+            _context3.next = 19;
+            return _awaitAsyncGenerator(reader.cancel());
+          case 19:
+            return _context3.finish(16);
+          case 20:
+          case "end":
+            return _context3.stop();
+        }
+      }, _callee2, null, [[4,, 16, 20]]);
+    }));
+    return function readStream(_x3) {
+      return _ref2.apply(this, arguments);
+    };
+  }();
+  var trackStream = function trackStream(stream, chunkSize, onProgress, onFinish) {
+    var iterator = readBytes(stream, chunkSize);
+    var bytes = 0;
+    var done;
+    var _onFinish = function _onFinish(e) {
+      if (!done) {
+        done = true;
+        onFinish && onFinish(e);
+      }
+    };
+    return new ReadableStream({
+      pull: function pull(controller) {
+        return _asyncToGenerator( /*#__PURE__*/_regeneratorRuntime().mark(function _callee3() {
+          var _yield$iterator$next, _done, value, len, loadedBytes;
+          return _regeneratorRuntime().wrap(function _callee3$(_context4) {
+            while (1) switch (_context4.prev = _context4.next) {
+              case 0:
+                _context4.prev = 0;
+                _context4.next = 3;
+                return iterator.next();
+              case 3:
+                _yield$iterator$next = _context4.sent;
+                _done = _yield$iterator$next.done;
+                value = _yield$iterator$next.value;
+                if (!_done) {
+                  _context4.next = 10;
+                  break;
+                }
+                _onFinish();
+                controller.close();
+                return _context4.abrupt("return");
+              case 10:
+                len = value.byteLength;
+                if (onProgress) {
+                  loadedBytes = bytes += len;
+                  onProgress(loadedBytes);
+                }
+                controller.enqueue(new Uint8Array(value));
+                _context4.next = 19;
+                break;
+              case 15:
+                _context4.prev = 15;
+                _context4.t0 = _context4["catch"](0);
+                _onFinish(_context4.t0);
+                throw _context4.t0;
+              case 19:
+              case "end":
+                return _context4.stop();
+            }
+          }, _callee3, null, [[0, 15]]);
+        }))();
+      },
+      cancel: function cancel(reason) {
+        _onFinish(reason);
+        return iterator["return"]();
+      }
+    }, {
+      highWaterMark: 2
+    });
+  };
+
+  var isFetchSupported = typeof fetch === 'function' && typeof Request === 'function' && typeof Response === 'function';
+  var isReadableStreamSupported = isFetchSupported && typeof ReadableStream === 'function';
+
+  // used only inside the fetch adapter
+  var encodeText = isFetchSupported && (typeof TextEncoder === 'function' ? function (encoder) {
+    return function (str) {
+      return encoder.encode(str);
+    };
+  }(new TextEncoder()) : ( /*#__PURE__*/function () {
+    var _ref = _asyncToGenerator( /*#__PURE__*/_regeneratorRuntime().mark(function _callee(str) {
+      return _regeneratorRuntime().wrap(function _callee$(_context) {
+        while (1) switch (_context.prev = _context.next) {
+          case 0:
+            _context.t0 = Uint8Array;
+            _context.next = 3;
+            return new Response(str).arrayBuffer();
+          case 3:
+            _context.t1 = _context.sent;
+            return _context.abrupt("return", new _context.t0(_context.t1));
+          case 5:
+          case "end":
+            return _context.stop();
+        }
+      }, _callee);
+    }));
+    return function (_x) {
+      return _ref.apply(this, arguments);
+    };
+  }()));
+  var test = function test(fn) {
+    try {
+      for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+        args[_key - 1] = arguments[_key];
+      }
+      return !!fn.apply(void 0, args);
+    } catch (e) {
+      return false;
+    }
+  };
+  var supportsRequestStream = isReadableStreamSupported && test(function () {
+    var duplexAccessed = false;
+    var hasContentType = new Request(platform.origin, {
+      body: new ReadableStream(),
+      method: 'POST',
+      get duplex() {
+        duplexAccessed = true;
+        return 'half';
+      }
+    }).headers.has('Content-Type');
+    return duplexAccessed && !hasContentType;
+  });
+  var DEFAULT_CHUNK_SIZE = 64 * 1024;
+  var supportsResponseStream = isReadableStreamSupported && test(function () {
+    return utils$1.isReadableStream(new Response('').body);
+  });
+  var resolvers = {
+    stream: supportsResponseStream && function (res) {
+      return res.body;
+    }
+  };
+  isFetchSupported && function (res) {
+    ['text', 'arrayBuffer', 'blob', 'formData', 'stream'].forEach(function (type) {
+      !resolvers[type] && (resolvers[type] = utils$1.isFunction(res[type]) ? function (res) {
+        return res[type]();
+      } : function (_, config) {
+        throw new AxiosError("Response type '".concat(type, "' is not supported"), AxiosError.ERR_NOT_SUPPORT, config);
+      });
+    });
+  }(new Response());
+  var getBodyLength = /*#__PURE__*/function () {
+    var _ref2 = _asyncToGenerator( /*#__PURE__*/_regeneratorRuntime().mark(function _callee2(body) {
+      var _request;
+      return _regeneratorRuntime().wrap(function _callee2$(_context2) {
+        while (1) switch (_context2.prev = _context2.next) {
+          case 0:
+            if (!(body == null)) {
+              _context2.next = 2;
+              break;
+            }
+            return _context2.abrupt("return", 0);
+          case 2:
+            if (!utils$1.isBlob(body)) {
+              _context2.next = 4;
+              break;
+            }
+            return _context2.abrupt("return", body.size);
+          case 4:
+            if (!utils$1.isSpecCompliantForm(body)) {
+              _context2.next = 9;
+              break;
+            }
+            _request = new Request(platform.origin, {
+              method: 'POST',
+              body: body
+            });
+            _context2.next = 8;
+            return _request.arrayBuffer();
+          case 8:
+            return _context2.abrupt("return", _context2.sent.byteLength);
+          case 9:
+            if (!(utils$1.isArrayBufferView(body) || utils$1.isArrayBuffer(body))) {
+              _context2.next = 11;
+              break;
+            }
+            return _context2.abrupt("return", body.byteLength);
+          case 11:
+            if (utils$1.isURLSearchParams(body)) {
+              body = body + '';
+            }
+            if (!utils$1.isString(body)) {
+              _context2.next = 16;
+              break;
+            }
+            _context2.next = 15;
+            return encodeText(body);
+          case 15:
+            return _context2.abrupt("return", _context2.sent.byteLength);
+          case 16:
+          case "end":
+            return _context2.stop();
+        }
+      }, _callee2);
+    }));
+    return function getBodyLength(_x2) {
+      return _ref2.apply(this, arguments);
+    };
+  }();
+  var resolveBodyLength = /*#__PURE__*/function () {
+    var _ref3 = _asyncToGenerator( /*#__PURE__*/_regeneratorRuntime().mark(function _callee3(headers, body) {
+      var length;
+      return _regeneratorRuntime().wrap(function _callee3$(_context3) {
+        while (1) switch (_context3.prev = _context3.next) {
+          case 0:
+            length = utils$1.toFiniteNumber(headers.getContentLength());
+            return _context3.abrupt("return", length == null ? getBodyLength(body) : length);
+          case 2:
+          case "end":
+            return _context3.stop();
+        }
+      }, _callee3);
+    }));
+    return function resolveBodyLength(_x3, _x4) {
+      return _ref3.apply(this, arguments);
+    };
+  }();
+  var fetchAdapter = isFetchSupported && ( /*#__PURE__*/function () {
+    var _ref4 = _asyncToGenerator( /*#__PURE__*/_regeneratorRuntime().mark(function _callee4(config) {
+      var _resolveConfig, url, method, data, signal, cancelToken, timeout, onDownloadProgress, onUploadProgress, responseType, headers, _resolveConfig$withCr, withCredentials, fetchOptions, composedSignal, request, unsubscribe, requestContentLength, _request, contentTypeHeader, _progressEventDecorat, _progressEventDecorat2, onProgress, flush, isCredentialsSupported, response, isStreamResponse, options, responseContentLength, _ref5, _ref6, _onProgress, _flush, responseData;
+      return _regeneratorRuntime().wrap(function _callee4$(_context4) {
+        while (1) switch (_context4.prev = _context4.next) {
+          case 0:
+            _resolveConfig = resolveConfig(config), url = _resolveConfig.url, method = _resolveConfig.method, data = _resolveConfig.data, signal = _resolveConfig.signal, cancelToken = _resolveConfig.cancelToken, timeout = _resolveConfig.timeout, onDownloadProgress = _resolveConfig.onDownloadProgress, onUploadProgress = _resolveConfig.onUploadProgress, responseType = _resolveConfig.responseType, headers = _resolveConfig.headers, _resolveConfig$withCr = _resolveConfig.withCredentials, withCredentials = _resolveConfig$withCr === void 0 ? 'same-origin' : _resolveConfig$withCr, fetchOptions = _resolveConfig.fetchOptions;
+            responseType = responseType ? (responseType + '').toLowerCase() : 'text';
+            composedSignal = composeSignals$1([signal, cancelToken && cancelToken.toAbortSignal()], timeout);
+            unsubscribe = composedSignal && composedSignal.unsubscribe && function () {
+              composedSignal.unsubscribe();
+            };
+            _context4.prev = 4;
+            _context4.t0 = onUploadProgress && supportsRequestStream && method !== 'get' && method !== 'head';
+            if (!_context4.t0) {
+              _context4.next = 11;
+              break;
+            }
+            _context4.next = 9;
+            return resolveBodyLength(headers, data);
+          case 9:
+            _context4.t1 = requestContentLength = _context4.sent;
+            _context4.t0 = _context4.t1 !== 0;
+          case 11:
+            if (!_context4.t0) {
+              _context4.next = 15;
+              break;
+            }
+            _request = new Request(url, {
+              method: 'POST',
+              body: data,
+              duplex: "half"
+            });
+            if (utils$1.isFormData(data) && (contentTypeHeader = _request.headers.get('content-type'))) {
+              headers.setContentType(contentTypeHeader);
+            }
+            if (_request.body) {
+              _progressEventDecorat = progressEventDecorator(requestContentLength, progressEventReducer(asyncDecorator(onUploadProgress))), _progressEventDecorat2 = _slicedToArray(_progressEventDecorat, 2), onProgress = _progressEventDecorat2[0], flush = _progressEventDecorat2[1];
+              data = trackStream(_request.body, DEFAULT_CHUNK_SIZE, onProgress, flush);
+            }
+          case 15:
+            if (!utils$1.isString(withCredentials)) {
+              withCredentials = withCredentials ? 'include' : 'omit';
+            }
+
+            // Cloudflare Workers throws when credentials are defined
+            // see https://github.com/cloudflare/workerd/issues/902
+            isCredentialsSupported = "credentials" in Request.prototype;
+            request = new Request(url, _objectSpread2(_objectSpread2({}, fetchOptions), {}, {
+              signal: composedSignal,
+              method: method.toUpperCase(),
+              headers: headers.normalize().toJSON(),
+              body: data,
+              duplex: "half",
+              credentials: isCredentialsSupported ? withCredentials : undefined
+            }));
+            _context4.next = 20;
+            return fetch(request);
+          case 20:
+            response = _context4.sent;
+            isStreamResponse = supportsResponseStream && (responseType === 'stream' || responseType === 'response');
+            if (supportsResponseStream && (onDownloadProgress || isStreamResponse && unsubscribe)) {
+              options = {};
+              ['status', 'statusText', 'headers'].forEach(function (prop) {
+                options[prop] = response[prop];
+              });
+              responseContentLength = utils$1.toFiniteNumber(response.headers.get('content-length'));
+              _ref5 = onDownloadProgress && progressEventDecorator(responseContentLength, progressEventReducer(asyncDecorator(onDownloadProgress), true)) || [], _ref6 = _slicedToArray(_ref5, 2), _onProgress = _ref6[0], _flush = _ref6[1];
+              response = new Response(trackStream(response.body, DEFAULT_CHUNK_SIZE, _onProgress, function () {
+                _flush && _flush();
+                unsubscribe && unsubscribe();
+              }), options);
+            }
+            responseType = responseType || 'text';
+            _context4.next = 26;
+            return resolvers[utils$1.findKey(resolvers, responseType) || 'text'](response, config);
+          case 26:
+            responseData = _context4.sent;
+            !isStreamResponse && unsubscribe && unsubscribe();
+            _context4.next = 30;
+            return new Promise(function (resolve, reject) {
+              settle(resolve, reject, {
+                data: responseData,
+                headers: AxiosHeaders$1.from(response.headers),
+                status: response.status,
+                statusText: response.statusText,
+                config: config,
+                request: request
+              });
+            });
+          case 30:
+            return _context4.abrupt("return", _context4.sent);
+          case 33:
+            _context4.prev = 33;
+            _context4.t2 = _context4["catch"](4);
+            unsubscribe && unsubscribe();
+            if (!(_context4.t2 && _context4.t2.name === 'TypeError' && /fetch/i.test(_context4.t2.message))) {
+              _context4.next = 38;
+              break;
+            }
+            throw Object.assign(new AxiosError('Network Error', AxiosError.ERR_NETWORK, config, request), {
+              cause: _context4.t2.cause || _context4.t2
+            });
+          case 38:
+            throw AxiosError.from(_context4.t2, _context4.t2 && _context4.t2.code, config, request);
+          case 39:
+          case "end":
+            return _context4.stop();
+        }
+      }, _callee4, null, [[4, 33]]);
+    }));
+    return function (_x5) {
+      return _ref4.apply(this, arguments);
+    };
+  }());
+
+  var knownAdapters = {
+    http: httpAdapter,
+    xhr: xhrAdapter,
+    fetch: fetchAdapter
+  };
+  utils$1.forEach(knownAdapters, function (fn, value) {
+    if (fn) {
+      try {
+        Object.defineProperty(fn, 'name', {
+          value: value
+        });
+      } catch (e) {
+        // eslint-disable-next-line no-empty
+      }
+      Object.defineProperty(fn, 'adapterName', {
+        value: value
+      });
+    }
+  });
+  var renderReason = function renderReason(reason) {
+    return "- ".concat(reason);
+  };
+  var isResolvedHandle = function isResolvedHandle(adapter) {
+    return utils$1.isFunction(adapter) || adapter === null || adapter === false;
+  };
+  var adapters = {
+    getAdapter: function getAdapter(adapters) {
+      adapters = utils$1.isArray(adapters) ? adapters : [adapters];
+      var _adapters = adapters,
+        length = _adapters.length;
+      var nameOrAdapter;
+      var adapter;
+      var rejectedReasons = {};
+      for (var i = 0; i < length; i++) {
+        nameOrAdapter = adapters[i];
+        var id = void 0;
+        adapter = nameOrAdapter;
+        if (!isResolvedHandle(nameOrAdapter)) {
+          adapter = knownAdapters[(id = String(nameOrAdapter)).toLowerCase()];
+          if (adapter === undefined) {
+            throw new AxiosError("Unknown adapter '".concat(id, "'"));
+          }
+        }
+        if (adapter) {
+          break;
+        }
+        rejectedReasons[id || '#' + i] = adapter;
+      }
+      if (!adapter) {
+        var reasons = Object.entries(rejectedReasons).map(function (_ref) {
+          var _ref2 = _slicedToArray(_ref, 2),
+            id = _ref2[0],
+            state = _ref2[1];
+          return "adapter ".concat(id, " ") + (state === false ? 'is not supported by the environment' : 'is not available in the build');
+        });
+        var s = length ? reasons.length > 1 ? 'since :\n' + reasons.map(renderReason).join('\n') : ' ' + renderReason(reasons[0]) : 'as no adapter specified';
+        throw new AxiosError("There is no suitable adapter to dispatch the request " + s, 'ERR_NOT_SUPPORT');
+      }
+      return adapter;
+    },
+    adapters: knownAdapters
+  };
+
+  /**
+   * Throws a `CanceledError` if cancellation has been requested.
+   *
+   * @param {Object} config The config that is to be used for the request
+   *
+   * @returns {void}
+   */
+  function throwIfCancellationRequested(config) {
+    if (config.cancelToken) {
+      config.cancelToken.throwIfRequested();
+    }
+    if (config.signal && config.signal.aborted) {
+      throw new CanceledError(null, config);
+    }
+  }
+
+  /**
+   * Dispatch a request to the server using the configured adapter.
+   *
+   * @param {object} config The config that is to be used for the request
+   *
+   * @returns {Promise} The Promise to be fulfilled
+   */
+  function dispatchRequest(config) {
+    throwIfCancellationRequested(config);
+    config.headers = AxiosHeaders$1.from(config.headers);
+
+    // Transform request data
+    config.data = transformData.call(config, config.transformRequest);
+    if (['post', 'put', 'patch'].indexOf(config.method) !== -1) {
+      config.headers.setContentType('application/x-www-form-urlencoded', false);
+    }
+    var adapter = adapters.getAdapter(config.adapter || defaults$1.adapter);
+    return adapter(config).then(function onAdapterResolution(response) {
+      throwIfCancellationRequested(config);
+
+      // Transform response data
+      response.data = transformData.call(config, config.transformResponse, response);
+      response.headers = AxiosHeaders$1.from(response.headers);
+      return response;
+    }, function onAdapterRejection(reason) {
+      if (!isCancel(reason)) {
+        throwIfCancellationRequested(config);
+
+        // Transform response data
+        if (reason && reason.response) {
+          reason.response.data = transformData.call(config, config.transformResponse, reason.response);
+          reason.response.headers = AxiosHeaders$1.from(reason.response.headers);
+        }
+      }
+      return Promise.reject(reason);
+    });
+  }
+
+  var VERSION = "1.7.9";
+
+  var validators$1 = {};
+
+  // eslint-disable-next-line func-names
+  ['object', 'boolean', 'number', 'function', 'string', 'symbol'].forEach(function (type, i) {
+    validators$1[type] = function validator(thing) {
+      return _typeof(thing) === type || 'a' + (i < 1 ? 'n ' : ' ') + type;
+    };
+  });
+  var deprecatedWarnings = {};
+
+  /**
+   * Transitional option validator
+   *
+   * @param {function|boolean?} validator - set to false if the transitional option has been removed
+   * @param {string?} version - deprecated version / removed since version
+   * @param {string?} message - some message with additional info
+   *
+   * @returns {function}
+   */
+  validators$1.transitional = function transitional(validator, version, message) {
+    function formatMessage(opt, desc) {
+      return '[Axios v' + VERSION + '] Transitional option \'' + opt + '\'' + desc + (message ? '. ' + message : '');
+    }
+
+    // eslint-disable-next-line func-names
+    return function (value, opt, opts) {
+      if (validator === false) {
+        throw new AxiosError(formatMessage(opt, ' has been removed' + (version ? ' in ' + version : '')), AxiosError.ERR_DEPRECATED);
+      }
+      if (version && !deprecatedWarnings[opt]) {
+        deprecatedWarnings[opt] = true;
+        // eslint-disable-next-line no-console
+        console.warn(formatMessage(opt, ' has been deprecated since v' + version + ' and will be removed in the near future'));
+      }
+      return validator ? validator(value, opt, opts) : true;
+    };
+  };
+  validators$1.spelling = function spelling(correctSpelling) {
+    return function (value, opt) {
+      // eslint-disable-next-line no-console
+      console.warn("".concat(opt, " is likely a misspelling of ").concat(correctSpelling));
+      return true;
+    };
+  };
+
+  /**
+   * Assert object's properties type
+   *
+   * @param {object} options
+   * @param {object} schema
+   * @param {boolean?} allowUnknown
+   *
+   * @returns {object}
+   */
+
+  function assertOptions(options, schema, allowUnknown) {
+    if (_typeof(options) !== 'object') {
+      throw new AxiosError('options must be an object', AxiosError.ERR_BAD_OPTION_VALUE);
+    }
+    var keys = Object.keys(options);
+    var i = keys.length;
+    while (i-- > 0) {
+      var opt = keys[i];
+      var validator = schema[opt];
+      if (validator) {
+        var value = options[opt];
+        var result = value === undefined || validator(value, opt, options);
+        if (result !== true) {
+          throw new AxiosError('option ' + opt + ' must be ' + result, AxiosError.ERR_BAD_OPTION_VALUE);
+        }
+        continue;
+      }
+      if (allowUnknown !== true) {
+        throw new AxiosError('Unknown option ' + opt, AxiosError.ERR_BAD_OPTION);
+      }
+    }
+  }
+  var validator = {
+    assertOptions: assertOptions,
+    validators: validators$1
+  };
+
+  var validators = validator.validators;
+
+  /**
+   * Create a new instance of Axios
+   *
+   * @param {Object} instanceConfig The default config for the instance
+   *
+   * @return {Axios} A new instance of Axios
+   */
+  var Axios = /*#__PURE__*/function () {
+    function Axios(instanceConfig) {
+      _classCallCheck(this, Axios);
+      this.defaults = instanceConfig;
+      this.interceptors = {
+        request: new InterceptorManager$1(),
+        response: new InterceptorManager$1()
+      };
+    }
+
+    /**
+     * Dispatch a request
+     *
+     * @param {String|Object} configOrUrl The config specific for this request (merged with this.defaults)
+     * @param {?Object} config
+     *
+     * @returns {Promise} The Promise to be fulfilled
+     */
+    _createClass(Axios, [{
+      key: "request",
+      value: (function () {
+        var _request2 = _asyncToGenerator( /*#__PURE__*/_regeneratorRuntime().mark(function _callee(configOrUrl, config) {
+          var dummy, stack;
+          return _regeneratorRuntime().wrap(function _callee$(_context) {
+            while (1) switch (_context.prev = _context.next) {
+              case 0:
+                _context.prev = 0;
+                _context.next = 3;
+                return this._request(configOrUrl, config);
+              case 3:
+                return _context.abrupt("return", _context.sent);
+              case 6:
+                _context.prev = 6;
+                _context.t0 = _context["catch"](0);
+                if (_context.t0 instanceof Error) {
+                  dummy = {};
+                  Error.captureStackTrace ? Error.captureStackTrace(dummy) : dummy = new Error();
+
+                  // slice off the Error: ... line
+                  stack = dummy.stack ? dummy.stack.replace(/^.+\n/, '') : '';
+                  try {
+                    if (!_context.t0.stack) {
+                      _context.t0.stack = stack;
+                      // match without the 2 top stack lines
+                    } else if (stack && !String(_context.t0.stack).endsWith(stack.replace(/^.+\n.+\n/, ''))) {
+                      _context.t0.stack += '\n' + stack;
+                    }
+                  } catch (e) {
+                    // ignore the case where "stack" is an un-writable property
+                  }
+                }
+                throw _context.t0;
+              case 10:
+              case "end":
+                return _context.stop();
+            }
+          }, _callee, this, [[0, 6]]);
+        }));
+        function request(_x, _x2) {
+          return _request2.apply(this, arguments);
+        }
+        return request;
+      }())
+    }, {
+      key: "_request",
+      value: function _request(configOrUrl, config) {
+        /*eslint no-param-reassign:0*/
+        // Allow for axios('example/url'[, config]) a la fetch API
+        if (typeof configOrUrl === 'string') {
+          config = config || {};
+          config.url = configOrUrl;
+        } else {
+          config = configOrUrl || {};
+        }
+        config = mergeConfig(this.defaults, config);
+        var _config = config,
+          transitional = _config.transitional,
+          paramsSerializer = _config.paramsSerializer,
+          headers = _config.headers;
+        if (transitional !== undefined) {
+          validator.assertOptions(transitional, {
+            silentJSONParsing: validators.transitional(validators["boolean"]),
+            forcedJSONParsing: validators.transitional(validators["boolean"]),
+            clarifyTimeoutError: validators.transitional(validators["boolean"])
+          }, false);
+        }
+        if (paramsSerializer != null) {
+          if (utils$1.isFunction(paramsSerializer)) {
+            config.paramsSerializer = {
+              serialize: paramsSerializer
+            };
+          } else {
+            validator.assertOptions(paramsSerializer, {
+              encode: validators["function"],
+              serialize: validators["function"]
+            }, true);
+          }
+        }
+        validator.assertOptions(config, {
+          baseUrl: validators.spelling('baseURL'),
+          withXsrfToken: validators.spelling('withXSRFToken')
+        }, true);
+
+        // Set config.method
+        config.method = (config.method || this.defaults.method || 'get').toLowerCase();
+
+        // Flatten headers
+        var contextHeaders = headers && utils$1.merge(headers.common, headers[config.method]);
+        headers && utils$1.forEach(['delete', 'get', 'head', 'post', 'put', 'patch', 'common'], function (method) {
+          delete headers[method];
+        });
+        config.headers = AxiosHeaders$1.concat(contextHeaders, headers);
+
+        // filter out skipped interceptors
+        var requestInterceptorChain = [];
+        var synchronousRequestInterceptors = true;
+        this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {
+          if (typeof interceptor.runWhen === 'function' && interceptor.runWhen(config) === false) {
+            return;
+          }
+          synchronousRequestInterceptors = synchronousRequestInterceptors && interceptor.synchronous;
+          requestInterceptorChain.unshift(interceptor.fulfilled, interceptor.rejected);
+        });
+        var responseInterceptorChain = [];
+        this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {
+          responseInterceptorChain.push(interceptor.fulfilled, interceptor.rejected);
+        });
+        var promise;
+        var i = 0;
+        var len;
+        if (!synchronousRequestInterceptors) {
+          var chain = [dispatchRequest.bind(this), undefined];
+          chain.unshift.apply(chain, requestInterceptorChain);
+          chain.push.apply(chain, responseInterceptorChain);
+          len = chain.length;
+          promise = Promise.resolve(config);
+          while (i < len) {
+            promise = promise.then(chain[i++], chain[i++]);
+          }
+          return promise;
+        }
+        len = requestInterceptorChain.length;
+        var newConfig = config;
+        i = 0;
+        while (i < len) {
+          var onFulfilled = requestInterceptorChain[i++];
+          var onRejected = requestInterceptorChain[i++];
+          try {
+            newConfig = onFulfilled(newConfig);
+          } catch (error) {
+            onRejected.call(this, error);
+            break;
+          }
+        }
+        try {
+          promise = dispatchRequest.call(this, newConfig);
+        } catch (error) {
+          return Promise.reject(error);
+        }
+        i = 0;
+        len = responseInterceptorChain.length;
+        while (i < len) {
+          promise = promise.then(responseInterceptorChain[i++], responseInterceptorChain[i++]);
+        }
+        return promise;
+      }
+    }, {
+      key: "getUri",
+      value: function getUri(config) {
+        config = mergeConfig(this.defaults, config);
+        var fullPath = buildFullPath(config.baseURL, config.url);
+        return buildURL(fullPath, config.params, config.paramsSerializer);
+      }
+    }]);
+    return Axios;
+  }(); // Provide aliases for supported request methods
+  utils$1.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {
+    /*eslint func-names:0*/
+    Axios.prototype[method] = function (url, config) {
+      return this.request(mergeConfig(config || {}, {
+        method: method,
+        url: url,
+        data: (config || {}).data
+      }));
+    };
+  });
+  utils$1.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
+    /*eslint func-names:0*/
+
+    function generateHTTPMethod(isForm) {
+      return function httpMethod(url, data, config) {
+        return this.request(mergeConfig(config || {}, {
+          method: method,
+          headers: isForm ? {
+            'Content-Type': 'multipart/form-data'
+          } : {},
+          url: url,
+          data: data
+        }));
+      };
+    }
+    Axios.prototype[method] = generateHTTPMethod();
+    Axios.prototype[method + 'Form'] = generateHTTPMethod(true);
+  });
+  var Axios$1 = Axios;
+
+  /**
+   * A `CancelToken` is an object that can be used to request cancellation of an operation.
+   *
+   * @param {Function} executor The executor function.
+   *
+   * @returns {CancelToken}
+   */
+  var CancelToken = /*#__PURE__*/function () {
+    function CancelToken(executor) {
+      _classCallCheck(this, CancelToken);
+      if (typeof executor !== 'function') {
+        throw new TypeError('executor must be a function.');
+      }
+      var resolvePromise;
+      this.promise = new Promise(function promiseExecutor(resolve) {
+        resolvePromise = resolve;
+      });
+      var token = this;
+
+      // eslint-disable-next-line func-names
+      this.promise.then(function (cancel) {
+        if (!token._listeners) return;
+        var i = token._listeners.length;
+        while (i-- > 0) {
+          token._listeners[i](cancel);
+        }
+        token._listeners = null;
+      });
+
+      // eslint-disable-next-line func-names
+      this.promise.then = function (onfulfilled) {
+        var _resolve;
+        // eslint-disable-next-line func-names
+        var promise = new Promise(function (resolve) {
+          token.subscribe(resolve);
+          _resolve = resolve;
+        }).then(onfulfilled);
+        promise.cancel = function reject() {
+          token.unsubscribe(_resolve);
+        };
+        return promise;
+      };
+      executor(function cancel(message, config, request) {
+        if (token.reason) {
+          // Cancellation has already been requested
+          return;
+        }
+        token.reason = new CanceledError(message, config, request);
+        resolvePromise(token.reason);
+      });
+    }
+
+    /**
+     * Throws a `CanceledError` if cancellation has been requested.
+     */
+    _createClass(CancelToken, [{
+      key: "throwIfRequested",
+      value: function throwIfRequested() {
+        if (this.reason) {
+          throw this.reason;
+        }
+      }
+
+      /**
+       * Subscribe to the cancel signal
+       */
+    }, {
+      key: "subscribe",
+      value: function subscribe(listener) {
+        if (this.reason) {
+          listener(this.reason);
+          return;
+        }
+        if (this._listeners) {
+          this._listeners.push(listener);
+        } else {
+          this._listeners = [listener];
+        }
+      }
+
+      /**
+       * Unsubscribe from the cancel signal
+       */
+    }, {
+      key: "unsubscribe",
+      value: function unsubscribe(listener) {
+        if (!this._listeners) {
+          return;
+        }
+        var index = this._listeners.indexOf(listener);
+        if (index !== -1) {
+          this._listeners.splice(index, 1);
+        }
+      }
+    }, {
+      key: "toAbortSignal",
+      value: function toAbortSignal() {
+        var _this = this;
+        var controller = new AbortController();
+        var abort = function abort(err) {
+          controller.abort(err);
+        };
+        this.subscribe(abort);
+        controller.signal.unsubscribe = function () {
+          return _this.unsubscribe(abort);
+        };
+        return controller.signal;
+      }
+
+      /**
+       * Returns an object that contains a new `CancelToken` and a function that, when called,
+       * cancels the `CancelToken`.
+       */
+    }], [{
+      key: "source",
+      value: function source() {
+        var cancel;
+        var token = new CancelToken(function executor(c) {
+          cancel = c;
+        });
+        return {
+          token: token,
+          cancel: cancel
+        };
+      }
+    }]);
+    return CancelToken;
+  }();
+  var CancelToken$1 = CancelToken;
+
+  /**
+   * Syntactic sugar for invoking a function and expanding an array for arguments.
+   *
+   * Common use case would be to use `Function.prototype.apply`.
+   *
+   *  ```js
+   *  function f(x, y, z) {}
+   *  var args = [1, 2, 3];
+   *  f.apply(null, args);
+   *  ```
+   *
+   * With `spread` this example can be re-written.
+   *
+   *  ```js
+   *  spread(function(x, y, z) {})([1, 2, 3]);
+   *  ```
+   *
+   * @param {Function} callback
+   *
+   * @returns {Function}
+   */
+  function spread(callback) {
+    return function wrap(arr) {
+      return callback.apply(null, arr);
+    };
+  }
+
+  /**
+   * Determines whether the payload is an error thrown by Axios
+   *
+   * @param {*} payload The value to test
+   *
+   * @returns {boolean} True if the payload is an error thrown by Axios, otherwise false
+   */
+  function isAxiosError(payload) {
+    return utils$1.isObject(payload) && payload.isAxiosError === true;
+  }
+
+  var HttpStatusCode = {
+    Continue: 100,
+    SwitchingProtocols: 101,
+    Processing: 102,
+    EarlyHints: 103,
+    Ok: 200,
+    Created: 201,
+    Accepted: 202,
+    NonAuthoritativeInformation: 203,
+    NoContent: 204,
+    ResetContent: 205,
+    PartialContent: 206,
+    MultiStatus: 207,
+    AlreadyReported: 208,
+    ImUsed: 226,
+    MultipleChoices: 300,
+    MovedPermanently: 301,
+    Found: 302,
+    SeeOther: 303,
+    NotModified: 304,
+    UseProxy: 305,
+    Unused: 306,
+    TemporaryRedirect: 307,
+    PermanentRedirect: 308,
+    BadRequest: 400,
+    Unauthorized: 401,
+    PaymentRequired: 402,
+    Forbidden: 403,
+    NotFound: 404,
+    MethodNotAllowed: 405,
+    NotAcceptable: 406,
+    ProxyAuthenticationRequired: 407,
+    RequestTimeout: 408,
+    Conflict: 409,
+    Gone: 410,
+    LengthRequired: 411,
+    PreconditionFailed: 412,
+    PayloadTooLarge: 413,
+    UriTooLong: 414,
+    UnsupportedMediaType: 415,
+    RangeNotSatisfiable: 416,
+    ExpectationFailed: 417,
+    ImATeapot: 418,
+    MisdirectedRequest: 421,
+    UnprocessableEntity: 422,
+    Locked: 423,
+    FailedDependency: 424,
+    TooEarly: 425,
+    UpgradeRequired: 426,
+    PreconditionRequired: 428,
+    TooManyRequests: 429,
+    RequestHeaderFieldsTooLarge: 431,
+    UnavailableForLegalReasons: 451,
+    InternalServerError: 500,
+    NotImplemented: 501,
+    BadGateway: 502,
+    ServiceUnavailable: 503,
+    GatewayTimeout: 504,
+    HttpVersionNotSupported: 505,
+    VariantAlsoNegotiates: 506,
+    InsufficientStorage: 507,
+    LoopDetected: 508,
+    NotExtended: 510,
+    NetworkAuthenticationRequired: 511
+  };
+  Object.entries(HttpStatusCode).forEach(function (_ref) {
+    var _ref2 = _slicedToArray(_ref, 2),
+      key = _ref2[0],
+      value = _ref2[1];
+    HttpStatusCode[value] = key;
+  });
+  var HttpStatusCode$1 = HttpStatusCode;
+
+  /**
+   * Create an instance of Axios
+   *
+   * @param {Object} defaultConfig The default config for the instance
+   *
+   * @returns {Axios} A new instance of Axios
+   */
+  function createInstance(defaultConfig) {
+    var context = new Axios$1(defaultConfig);
+    var instance = bind(Axios$1.prototype.request, context);
+
+    // Copy axios.prototype to instance
+    utils$1.extend(instance, Axios$1.prototype, context, {
+      allOwnKeys: true
+    });
+
+    // Copy context to instance
+    utils$1.extend(instance, context, null, {
+      allOwnKeys: true
+    });
+
+    // Factory for creating new instances
+    instance.create = function create(instanceConfig) {
+      return createInstance(mergeConfig(defaultConfig, instanceConfig));
+    };
+    return instance;
+  }
+
+  // Create the default instance to be exported
+  var axios = createInstance(defaults$1);
+
+  // Expose Axios class to allow class inheritance
+  axios.Axios = Axios$1;
+
+  // Expose Cancel & CancelToken
+  axios.CanceledError = CanceledError;
+  axios.CancelToken = CancelToken$1;
+  axios.isCancel = isCancel;
+  axios.VERSION = VERSION;
+  axios.toFormData = toFormData;
+
+  // Expose AxiosError class
+  axios.AxiosError = AxiosError;
+
+  // alias for CanceledError for backward compatibility
+  axios.Cancel = axios.CanceledError;
+
+  // Expose all/spread
+  axios.all = function all(promises) {
+    return Promise.all(promises);
+  };
+  axios.spread = spread;
+
+  // Expose isAxiosError
+  axios.isAxiosError = isAxiosError;
+
+  // Expose mergeConfig
+  axios.mergeConfig = mergeConfig;
+  axios.AxiosHeaders = AxiosHeaders$1;
+  axios.formToJSON = function (thing) {
+    return formDataToJSON(utils$1.isHTMLForm(thing) ? new FormData(thing) : thing);
+  };
+  axios.getAdapter = adapters.getAdapter;
+  axios.HttpStatusCode = HttpStatusCode$1;
+  axios["default"] = axios;
+
+  return axios;
+
+}));
+//# sourceMappingURL=axios.js.map
diff --git a/backend/node_modules/axios/dist/axios.js.map b/backend/node_modules/axios/dist/axios.js.map
new file mode 100644
index 0000000..be0fac8
--- /dev/null
+++ b/backend/node_modules/axios/dist/axios.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"axios.js","sources":["../lib/helpers/bind.js","../lib/utils.js","../lib/core/AxiosError.js","../lib/helpers/null.js","../lib/helpers/toFormData.js","../lib/helpers/AxiosURLSearchParams.js","../lib/helpers/buildURL.js","../lib/core/InterceptorManager.js","../lib/defaults/transitional.js","../lib/platform/browser/classes/URLSearchParams.js","../lib/platform/browser/classes/FormData.js","../lib/platform/browser/classes/Blob.js","../lib/platform/browser/index.js","../lib/platform/common/utils.js","../lib/platform/index.js","../lib/helpers/toURLEncodedForm.js","../lib/helpers/formDataToJSON.js","../lib/defaults/index.js","../lib/helpers/parseHeaders.js","../lib/core/AxiosHeaders.js","../lib/core/transformData.js","../lib/cancel/isCancel.js","../lib/cancel/CanceledError.js","../lib/core/settle.js","../lib/helpers/parseProtocol.js","../lib/helpers/speedometer.js","../lib/helpers/throttle.js","../lib/helpers/progressEventReducer.js","../lib/helpers/isURLSameOrigin.js","../lib/helpers/cookies.js","../lib/helpers/isAbsoluteURL.js","../lib/helpers/combineURLs.js","../lib/core/buildFullPath.js","../lib/core/mergeConfig.js","../lib/helpers/resolveConfig.js","../lib/adapters/xhr.js","../lib/helpers/composeSignals.js","../lib/helpers/trackStream.js","../lib/adapters/fetch.js","../lib/adapters/adapters.js","../lib/core/dispatchRequest.js","../lib/env/data.js","../lib/helpers/validator.js","../lib/core/Axios.js","../lib/cancel/CancelToken.js","../lib/helpers/spread.js","../lib/helpers/isAxiosError.js","../lib/helpers/HttpStatusCode.js","../lib/axios.js"],"sourcesContent":["'use strict';\n\nexport default function bind(fn, thisArg) {\n  return function wrap() {\n    return fn.apply(thisArg, arguments);\n  };\n}\n","'use strict';\n\nimport bind from './helpers/bind.js';\n\n// utils is a library of generic helper functions non-specific to axios\n\nconst {toString} = Object.prototype;\nconst {getPrototypeOf} = Object;\n\nconst kindOf = (cache => thing => {\n    const str = toString.call(thing);\n    return cache[str] || (cache[str] = str.slice(8, -1).toLowerCase());\n})(Object.create(null));\n\nconst kindOfTest = (type) => {\n  type = type.toLowerCase();\n  return (thing) => kindOf(thing) === type\n}\n\nconst typeOfTest = type => thing => typeof thing === type;\n\n/**\n * Determine if a value is an Array\n *\n * @param {Object} val The value to test\n *\n * @returns {boolean} True if value is an Array, otherwise false\n */\nconst {isArray} = Array;\n\n/**\n * Determine if a value is undefined\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if the value is undefined, otherwise false\n */\nconst isUndefined = typeOfTest('undefined');\n\n/**\n * Determine if a value is a Buffer\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Buffer, otherwise false\n */\nfunction isBuffer(val) {\n  return val !== null && !isUndefined(val) && val.constructor !== null && !isUndefined(val.constructor)\n    && isFunction(val.constructor.isBuffer) && val.constructor.isBuffer(val);\n}\n\n/**\n * Determine if a value is an ArrayBuffer\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is an ArrayBuffer, otherwise false\n */\nconst isArrayBuffer = kindOfTest('ArrayBuffer');\n\n\n/**\n * Determine if a value is a view on an ArrayBuffer\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false\n */\nfunction isArrayBufferView(val) {\n  let result;\n  if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) {\n    result = ArrayBuffer.isView(val);\n  } else {\n    result = (val) && (val.buffer) && (isArrayBuffer(val.buffer));\n  }\n  return result;\n}\n\n/**\n * Determine if a value is a String\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a String, otherwise false\n */\nconst isString = typeOfTest('string');\n\n/**\n * Determine if a value is a Function\n *\n * @param {*} val The value to test\n * @returns {boolean} True if value is a Function, otherwise false\n */\nconst isFunction = typeOfTest('function');\n\n/**\n * Determine if a value is a Number\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Number, otherwise false\n */\nconst isNumber = typeOfTest('number');\n\n/**\n * Determine if a value is an Object\n *\n * @param {*} thing The value to test\n *\n * @returns {boolean} True if value is an Object, otherwise false\n */\nconst isObject = (thing) => thing !== null && typeof thing === 'object';\n\n/**\n * Determine if a value is a Boolean\n *\n * @param {*} thing The value to test\n * @returns {boolean} True if value is a Boolean, otherwise false\n */\nconst isBoolean = thing => thing === true || thing === false;\n\n/**\n * Determine if a value is a plain Object\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a plain Object, otherwise false\n */\nconst isPlainObject = (val) => {\n  if (kindOf(val) !== 'object') {\n    return false;\n  }\n\n  const prototype = getPrototypeOf(val);\n  return (prototype === null || prototype === Object.prototype || Object.getPrototypeOf(prototype) === null) && !(Symbol.toStringTag in val) && !(Symbol.iterator in val);\n}\n\n/**\n * Determine if a value is a Date\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Date, otherwise false\n */\nconst isDate = kindOfTest('Date');\n\n/**\n * Determine if a value is a File\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a File, otherwise false\n */\nconst isFile = kindOfTest('File');\n\n/**\n * Determine if a value is a Blob\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Blob, otherwise false\n */\nconst isBlob = kindOfTest('Blob');\n\n/**\n * Determine if a value is a FileList\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a File, otherwise false\n */\nconst isFileList = kindOfTest('FileList');\n\n/**\n * Determine if a value is a Stream\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Stream, otherwise false\n */\nconst isStream = (val) => isObject(val) && isFunction(val.pipe);\n\n/**\n * Determine if a value is a FormData\n *\n * @param {*} thing The value to test\n *\n * @returns {boolean} True if value is an FormData, otherwise false\n */\nconst isFormData = (thing) => {\n  let kind;\n  return thing && (\n    (typeof FormData === 'function' && thing instanceof FormData) || (\n      isFunction(thing.append) && (\n        (kind = kindOf(thing)) === 'formdata' ||\n        // detect form-data instance\n        (kind === 'object' && isFunction(thing.toString) && thing.toString() === '[object FormData]')\n      )\n    )\n  )\n}\n\n/**\n * Determine if a value is a URLSearchParams object\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a URLSearchParams object, otherwise false\n */\nconst isURLSearchParams = kindOfTest('URLSearchParams');\n\nconst [isReadableStream, isRequest, isResponse, isHeaders] = ['ReadableStream', 'Request', 'Response', 'Headers'].map(kindOfTest);\n\n/**\n * Trim excess whitespace off the beginning and end of a string\n *\n * @param {String} str The String to trim\n *\n * @returns {String} The String freed of excess whitespace\n */\nconst trim = (str) => str.trim ?\n  str.trim() : str.replace(/^[\\s\\uFEFF\\xA0]+|[\\s\\uFEFF\\xA0]+$/g, '');\n\n/**\n * Iterate over an Array or an Object invoking a function for each item.\n *\n * If `obj` is an Array callback will be called passing\n * the value, index, and complete array for each item.\n *\n * If 'obj' is an Object callback will be called passing\n * the value, key, and complete object for each property.\n *\n * @param {Object|Array} obj The object to iterate\n * @param {Function} fn The callback to invoke for each item\n *\n * @param {Boolean} [allOwnKeys = false]\n * @returns {any}\n */\nfunction forEach(obj, fn, {allOwnKeys = false} = {}) {\n  // Don't bother if no value provided\n  if (obj === null || typeof obj === 'undefined') {\n    return;\n  }\n\n  let i;\n  let l;\n\n  // Force an array if not already something iterable\n  if (typeof obj !== 'object') {\n    /*eslint no-param-reassign:0*/\n    obj = [obj];\n  }\n\n  if (isArray(obj)) {\n    // Iterate over array values\n    for (i = 0, l = obj.length; i < l; i++) {\n      fn.call(null, obj[i], i, obj);\n    }\n  } else {\n    // Iterate over object keys\n    const keys = allOwnKeys ? Object.getOwnPropertyNames(obj) : Object.keys(obj);\n    const len = keys.length;\n    let key;\n\n    for (i = 0; i < len; i++) {\n      key = keys[i];\n      fn.call(null, obj[key], key, obj);\n    }\n  }\n}\n\nfunction findKey(obj, key) {\n  key = key.toLowerCase();\n  const keys = Object.keys(obj);\n  let i = keys.length;\n  let _key;\n  while (i-- > 0) {\n    _key = keys[i];\n    if (key === _key.toLowerCase()) {\n      return _key;\n    }\n  }\n  return null;\n}\n\nconst _global = (() => {\n  /*eslint no-undef:0*/\n  if (typeof globalThis !== \"undefined\") return globalThis;\n  return typeof self !== \"undefined\" ? self : (typeof window !== 'undefined' ? window : global)\n})();\n\nconst isContextDefined = (context) => !isUndefined(context) && context !== _global;\n\n/**\n * Accepts varargs expecting each argument to be an object, then\n * immutably merges the properties of each object and returns result.\n *\n * When multiple objects contain the same key the later object in\n * the arguments list will take precedence.\n *\n * Example:\n *\n * ```js\n * var result = merge({foo: 123}, {foo: 456});\n * console.log(result.foo); // outputs 456\n * ```\n *\n * @param {Object} obj1 Object to merge\n *\n * @returns {Object} Result of all merge properties\n */\nfunction merge(/* obj1, obj2, obj3, ... */) {\n  const {caseless} = isContextDefined(this) && this || {};\n  const result = {};\n  const assignValue = (val, key) => {\n    const targetKey = caseless && findKey(result, key) || key;\n    if (isPlainObject(result[targetKey]) && isPlainObject(val)) {\n      result[targetKey] = merge(result[targetKey], val);\n    } else if (isPlainObject(val)) {\n      result[targetKey] = merge({}, val);\n    } else if (isArray(val)) {\n      result[targetKey] = val.slice();\n    } else {\n      result[targetKey] = val;\n    }\n  }\n\n  for (let i = 0, l = arguments.length; i < l; i++) {\n    arguments[i] && forEach(arguments[i], assignValue);\n  }\n  return result;\n}\n\n/**\n * Extends object a by mutably adding to it the properties of object b.\n *\n * @param {Object} a The object to be extended\n * @param {Object} b The object to copy properties from\n * @param {Object} thisArg The object to bind function to\n *\n * @param {Boolean} [allOwnKeys]\n * @returns {Object} The resulting value of object a\n */\nconst extend = (a, b, thisArg, {allOwnKeys}= {}) => {\n  forEach(b, (val, key) => {\n    if (thisArg && isFunction(val)) {\n      a[key] = bind(val, thisArg);\n    } else {\n      a[key] = val;\n    }\n  }, {allOwnKeys});\n  return a;\n}\n\n/**\n * Remove byte order marker. This catches EF BB BF (the UTF-8 BOM)\n *\n * @param {string} content with BOM\n *\n * @returns {string} content value without BOM\n */\nconst stripBOM = (content) => {\n  if (content.charCodeAt(0) === 0xFEFF) {\n    content = content.slice(1);\n  }\n  return content;\n}\n\n/**\n * Inherit the prototype methods from one constructor into another\n * @param {function} constructor\n * @param {function} superConstructor\n * @param {object} [props]\n * @param {object} [descriptors]\n *\n * @returns {void}\n */\nconst inherits = (constructor, superConstructor, props, descriptors) => {\n  constructor.prototype = Object.create(superConstructor.prototype, descriptors);\n  constructor.prototype.constructor = constructor;\n  Object.defineProperty(constructor, 'super', {\n    value: superConstructor.prototype\n  });\n  props && Object.assign(constructor.prototype, props);\n}\n\n/**\n * Resolve object with deep prototype chain to a flat object\n * @param {Object} sourceObj source object\n * @param {Object} [destObj]\n * @param {Function|Boolean} [filter]\n * @param {Function} [propFilter]\n *\n * @returns {Object}\n */\nconst toFlatObject = (sourceObj, destObj, filter, propFilter) => {\n  let props;\n  let i;\n  let prop;\n  const merged = {};\n\n  destObj = destObj || {};\n  // eslint-disable-next-line no-eq-null,eqeqeq\n  if (sourceObj == null) return destObj;\n\n  do {\n    props = Object.getOwnPropertyNames(sourceObj);\n    i = props.length;\n    while (i-- > 0) {\n      prop = props[i];\n      if ((!propFilter || propFilter(prop, sourceObj, destObj)) && !merged[prop]) {\n        destObj[prop] = sourceObj[prop];\n        merged[prop] = true;\n      }\n    }\n    sourceObj = filter !== false && getPrototypeOf(sourceObj);\n  } while (sourceObj && (!filter || filter(sourceObj, destObj)) && sourceObj !== Object.prototype);\n\n  return destObj;\n}\n\n/**\n * Determines whether a string ends with the characters of a specified string\n *\n * @param {String} str\n * @param {String} searchString\n * @param {Number} [position= 0]\n *\n * @returns {boolean}\n */\nconst endsWith = (str, searchString, position) => {\n  str = String(str);\n  if (position === undefined || position > str.length) {\n    position = str.length;\n  }\n  position -= searchString.length;\n  const lastIndex = str.indexOf(searchString, position);\n  return lastIndex !== -1 && lastIndex === position;\n}\n\n\n/**\n * Returns new array from array like object or null if failed\n *\n * @param {*} [thing]\n *\n * @returns {?Array}\n */\nconst toArray = (thing) => {\n  if (!thing) return null;\n  if (isArray(thing)) return thing;\n  let i = thing.length;\n  if (!isNumber(i)) return null;\n  const arr = new Array(i);\n  while (i-- > 0) {\n    arr[i] = thing[i];\n  }\n  return arr;\n}\n\n/**\n * Checking if the Uint8Array exists and if it does, it returns a function that checks if the\n * thing passed in is an instance of Uint8Array\n *\n * @param {TypedArray}\n *\n * @returns {Array}\n */\n// eslint-disable-next-line func-names\nconst isTypedArray = (TypedArray => {\n  // eslint-disable-next-line func-names\n  return thing => {\n    return TypedArray && thing instanceof TypedArray;\n  };\n})(typeof Uint8Array !== 'undefined' && getPrototypeOf(Uint8Array));\n\n/**\n * For each entry in the object, call the function with the key and value.\n *\n * @param {Object<any, any>} obj - The object to iterate over.\n * @param {Function} fn - The function to call for each entry.\n *\n * @returns {void}\n */\nconst forEachEntry = (obj, fn) => {\n  const generator = obj && obj[Symbol.iterator];\n\n  const iterator = generator.call(obj);\n\n  let result;\n\n  while ((result = iterator.next()) && !result.done) {\n    const pair = result.value;\n    fn.call(obj, pair[0], pair[1]);\n  }\n}\n\n/**\n * It takes a regular expression and a string, and returns an array of all the matches\n *\n * @param {string} regExp - The regular expression to match against.\n * @param {string} str - The string to search.\n *\n * @returns {Array<boolean>}\n */\nconst matchAll = (regExp, str) => {\n  let matches;\n  const arr = [];\n\n  while ((matches = regExp.exec(str)) !== null) {\n    arr.push(matches);\n  }\n\n  return arr;\n}\n\n/* Checking if the kindOfTest function returns true when passed an HTMLFormElement. */\nconst isHTMLForm = kindOfTest('HTMLFormElement');\n\nconst toCamelCase = str => {\n  return str.toLowerCase().replace(/[-_\\s]([a-z\\d])(\\w*)/g,\n    function replacer(m, p1, p2) {\n      return p1.toUpperCase() + p2;\n    }\n  );\n};\n\n/* Creating a function that will check if an object has a property. */\nconst hasOwnProperty = (({hasOwnProperty}) => (obj, prop) => hasOwnProperty.call(obj, prop))(Object.prototype);\n\n/**\n * Determine if a value is a RegExp object\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a RegExp object, otherwise false\n */\nconst isRegExp = kindOfTest('RegExp');\n\nconst reduceDescriptors = (obj, reducer) => {\n  const descriptors = Object.getOwnPropertyDescriptors(obj);\n  const reducedDescriptors = {};\n\n  forEach(descriptors, (descriptor, name) => {\n    let ret;\n    if ((ret = reducer(descriptor, name, obj)) !== false) {\n      reducedDescriptors[name] = ret || descriptor;\n    }\n  });\n\n  Object.defineProperties(obj, reducedDescriptors);\n}\n\n/**\n * Makes all methods read-only\n * @param {Object} obj\n */\n\nconst freezeMethods = (obj) => {\n  reduceDescriptors(obj, (descriptor, name) => {\n    // skip restricted props in strict mode\n    if (isFunction(obj) && ['arguments', 'caller', 'callee'].indexOf(name) !== -1) {\n      return false;\n    }\n\n    const value = obj[name];\n\n    if (!isFunction(value)) return;\n\n    descriptor.enumerable = false;\n\n    if ('writable' in descriptor) {\n      descriptor.writable = false;\n      return;\n    }\n\n    if (!descriptor.set) {\n      descriptor.set = () => {\n        throw Error('Can not rewrite read-only method \\'' + name + '\\'');\n      };\n    }\n  });\n}\n\nconst toObjectSet = (arrayOrString, delimiter) => {\n  const obj = {};\n\n  const define = (arr) => {\n    arr.forEach(value => {\n      obj[value] = true;\n    });\n  }\n\n  isArray(arrayOrString) ? define(arrayOrString) : define(String(arrayOrString).split(delimiter));\n\n  return obj;\n}\n\nconst noop = () => {}\n\nconst toFiniteNumber = (value, defaultValue) => {\n  return value != null && Number.isFinite(value = +value) ? value : defaultValue;\n}\n\nconst ALPHA = 'abcdefghijklmnopqrstuvwxyz'\n\nconst DIGIT = '0123456789';\n\nconst ALPHABET = {\n  DIGIT,\n  ALPHA,\n  ALPHA_DIGIT: ALPHA + ALPHA.toUpperCase() + DIGIT\n}\n\nconst generateString = (size = 16, alphabet = ALPHABET.ALPHA_DIGIT) => {\n  let str = '';\n  const {length} = alphabet;\n  while (size--) {\n    str += alphabet[Math.random() * length|0]\n  }\n\n  return str;\n}\n\n/**\n * If the thing is a FormData object, return true, otherwise return false.\n *\n * @param {unknown} thing - The thing to check.\n *\n * @returns {boolean}\n */\nfunction isSpecCompliantForm(thing) {\n  return !!(thing && isFunction(thing.append) && thing[Symbol.toStringTag] === 'FormData' && thing[Symbol.iterator]);\n}\n\nconst toJSONObject = (obj) => {\n  const stack = new Array(10);\n\n  const visit = (source, i) => {\n\n    if (isObject(source)) {\n      if (stack.indexOf(source) >= 0) {\n        return;\n      }\n\n      if(!('toJSON' in source)) {\n        stack[i] = source;\n        const target = isArray(source) ? [] : {};\n\n        forEach(source, (value, key) => {\n          const reducedValue = visit(value, i + 1);\n          !isUndefined(reducedValue) && (target[key] = reducedValue);\n        });\n\n        stack[i] = undefined;\n\n        return target;\n      }\n    }\n\n    return source;\n  }\n\n  return visit(obj, 0);\n}\n\nconst isAsyncFn = kindOfTest('AsyncFunction');\n\nconst isThenable = (thing) =>\n  thing && (isObject(thing) || isFunction(thing)) && isFunction(thing.then) && isFunction(thing.catch);\n\n// original code\n// https://github.com/DigitalBrainJS/AxiosPromise/blob/16deab13710ec09779922131f3fa5954320f83ab/lib/utils.js#L11-L34\n\nconst _setImmediate = ((setImmediateSupported, postMessageSupported) => {\n  if (setImmediateSupported) {\n    return setImmediate;\n  }\n\n  return postMessageSupported ? ((token, callbacks) => {\n    _global.addEventListener(\"message\", ({source, data}) => {\n      if (source === _global && data === token) {\n        callbacks.length && callbacks.shift()();\n      }\n    }, false);\n\n    return (cb) => {\n      callbacks.push(cb);\n      _global.postMessage(token, \"*\");\n    }\n  })(`axios@${Math.random()}`, []) : (cb) => setTimeout(cb);\n})(\n  typeof setImmediate === 'function',\n  isFunction(_global.postMessage)\n);\n\nconst asap = typeof queueMicrotask !== 'undefined' ?\n  queueMicrotask.bind(_global) : ( typeof process !== 'undefined' && process.nextTick || _setImmediate);\n\n// *********************\n\nexport default {\n  isArray,\n  isArrayBuffer,\n  isBuffer,\n  isFormData,\n  isArrayBufferView,\n  isString,\n  isNumber,\n  isBoolean,\n  isObject,\n  isPlainObject,\n  isReadableStream,\n  isRequest,\n  isResponse,\n  isHeaders,\n  isUndefined,\n  isDate,\n  isFile,\n  isBlob,\n  isRegExp,\n  isFunction,\n  isStream,\n  isURLSearchParams,\n  isTypedArray,\n  isFileList,\n  forEach,\n  merge,\n  extend,\n  trim,\n  stripBOM,\n  inherits,\n  toFlatObject,\n  kindOf,\n  kindOfTest,\n  endsWith,\n  toArray,\n  forEachEntry,\n  matchAll,\n  isHTMLForm,\n  hasOwnProperty,\n  hasOwnProp: hasOwnProperty, // an alias to avoid ESLint no-prototype-builtins detection\n  reduceDescriptors,\n  freezeMethods,\n  toObjectSet,\n  toCamelCase,\n  noop,\n  toFiniteNumber,\n  findKey,\n  global: _global,\n  isContextDefined,\n  ALPHABET,\n  generateString,\n  isSpecCompliantForm,\n  toJSONObject,\n  isAsyncFn,\n  isThenable,\n  setImmediate: _setImmediate,\n  asap\n};\n","'use strict';\n\nimport utils from '../utils.js';\n\n/**\n * Create an Error with the specified message, config, error code, request and response.\n *\n * @param {string} message The error message.\n * @param {string} [code] The error code (for example, 'ECONNABORTED').\n * @param {Object} [config] The config.\n * @param {Object} [request] The request.\n * @param {Object} [response] The response.\n *\n * @returns {Error} The created error.\n */\nfunction AxiosError(message, code, config, request, response) {\n  Error.call(this);\n\n  if (Error.captureStackTrace) {\n    Error.captureStackTrace(this, this.constructor);\n  } else {\n    this.stack = (new Error()).stack;\n  }\n\n  this.message = message;\n  this.name = 'AxiosError';\n  code && (this.code = code);\n  config && (this.config = config);\n  request && (this.request = request);\n  if (response) {\n    this.response = response;\n    this.status = response.status ? response.status : null;\n  }\n}\n\nutils.inherits(AxiosError, Error, {\n  toJSON: function toJSON() {\n    return {\n      // Standard\n      message: this.message,\n      name: this.name,\n      // Microsoft\n      description: this.description,\n      number: this.number,\n      // Mozilla\n      fileName: this.fileName,\n      lineNumber: this.lineNumber,\n      columnNumber: this.columnNumber,\n      stack: this.stack,\n      // Axios\n      config: utils.toJSONObject(this.config),\n      code: this.code,\n      status: this.status\n    };\n  }\n});\n\nconst prototype = AxiosError.prototype;\nconst descriptors = {};\n\n[\n  'ERR_BAD_OPTION_VALUE',\n  'ERR_BAD_OPTION',\n  'ECONNABORTED',\n  'ETIMEDOUT',\n  'ERR_NETWORK',\n  'ERR_FR_TOO_MANY_REDIRECTS',\n  'ERR_DEPRECATED',\n  'ERR_BAD_RESPONSE',\n  'ERR_BAD_REQUEST',\n  'ERR_CANCELED',\n  'ERR_NOT_SUPPORT',\n  'ERR_INVALID_URL'\n// eslint-disable-next-line func-names\n].forEach(code => {\n  descriptors[code] = {value: code};\n});\n\nObject.defineProperties(AxiosError, descriptors);\nObject.defineProperty(prototype, 'isAxiosError', {value: true});\n\n// eslint-disable-next-line func-names\nAxiosError.from = (error, code, config, request, response, customProps) => {\n  const axiosError = Object.create(prototype);\n\n  utils.toFlatObject(error, axiosError, function filter(obj) {\n    return obj !== Error.prototype;\n  }, prop => {\n    return prop !== 'isAxiosError';\n  });\n\n  AxiosError.call(axiosError, error.message, code, config, request, response);\n\n  axiosError.cause = error;\n\n  axiosError.name = error.name;\n\n  customProps && Object.assign(axiosError, customProps);\n\n  return axiosError;\n};\n\nexport default AxiosError;\n","// eslint-disable-next-line strict\nexport default null;\n","'use strict';\n\nimport utils from '../utils.js';\nimport AxiosError from '../core/AxiosError.js';\n// temporary hotfix to avoid circular references until AxiosURLSearchParams is refactored\nimport PlatformFormData from '../platform/node/classes/FormData.js';\n\n/**\n * Determines if the given thing is a array or js object.\n *\n * @param {string} thing - The object or array to be visited.\n *\n * @returns {boolean}\n */\nfunction isVisitable(thing) {\n  return utils.isPlainObject(thing) || utils.isArray(thing);\n}\n\n/**\n * It removes the brackets from the end of a string\n *\n * @param {string} key - The key of the parameter.\n *\n * @returns {string} the key without the brackets.\n */\nfunction removeBrackets(key) {\n  return utils.endsWith(key, '[]') ? key.slice(0, -2) : key;\n}\n\n/**\n * It takes a path, a key, and a boolean, and returns a string\n *\n * @param {string} path - The path to the current key.\n * @param {string} key - The key of the current object being iterated over.\n * @param {string} dots - If true, the key will be rendered with dots instead of brackets.\n *\n * @returns {string} The path to the current key.\n */\nfunction renderKey(path, key, dots) {\n  if (!path) return key;\n  return path.concat(key).map(function each(token, i) {\n    // eslint-disable-next-line no-param-reassign\n    token = removeBrackets(token);\n    return !dots && i ? '[' + token + ']' : token;\n  }).join(dots ? '.' : '');\n}\n\n/**\n * If the array is an array and none of its elements are visitable, then it's a flat array.\n *\n * @param {Array<any>} arr - The array to check\n *\n * @returns {boolean}\n */\nfunction isFlatArray(arr) {\n  return utils.isArray(arr) && !arr.some(isVisitable);\n}\n\nconst predicates = utils.toFlatObject(utils, {}, null, function filter(prop) {\n  return /^is[A-Z]/.test(prop);\n});\n\n/**\n * Convert a data object to FormData\n *\n * @param {Object} obj\n * @param {?Object} [formData]\n * @param {?Object} [options]\n * @param {Function} [options.visitor]\n * @param {Boolean} [options.metaTokens = true]\n * @param {Boolean} [options.dots = false]\n * @param {?Boolean} [options.indexes = false]\n *\n * @returns {Object}\n **/\n\n/**\n * It converts an object into a FormData object\n *\n * @param {Object<any, any>} obj - The object to convert to form data.\n * @param {string} formData - The FormData object to append to.\n * @param {Object<string, any>} options\n *\n * @returns\n */\nfunction toFormData(obj, formData, options) {\n  if (!utils.isObject(obj)) {\n    throw new TypeError('target must be an object');\n  }\n\n  // eslint-disable-next-line no-param-reassign\n  formData = formData || new (PlatformFormData || FormData)();\n\n  // eslint-disable-next-line no-param-reassign\n  options = utils.toFlatObject(options, {\n    metaTokens: true,\n    dots: false,\n    indexes: false\n  }, false, function defined(option, source) {\n    // eslint-disable-next-line no-eq-null,eqeqeq\n    return !utils.isUndefined(source[option]);\n  });\n\n  const metaTokens = options.metaTokens;\n  // eslint-disable-next-line no-use-before-define\n  const visitor = options.visitor || defaultVisitor;\n  const dots = options.dots;\n  const indexes = options.indexes;\n  const _Blob = options.Blob || typeof Blob !== 'undefined' && Blob;\n  const useBlob = _Blob && utils.isSpecCompliantForm(formData);\n\n  if (!utils.isFunction(visitor)) {\n    throw new TypeError('visitor must be a function');\n  }\n\n  function convertValue(value) {\n    if (value === null) return '';\n\n    if (utils.isDate(value)) {\n      return value.toISOString();\n    }\n\n    if (!useBlob && utils.isBlob(value)) {\n      throw new AxiosError('Blob is not supported. Use a Buffer instead.');\n    }\n\n    if (utils.isArrayBuffer(value) || utils.isTypedArray(value)) {\n      return useBlob && typeof Blob === 'function' ? new Blob([value]) : Buffer.from(value);\n    }\n\n    return value;\n  }\n\n  /**\n   * Default visitor.\n   *\n   * @param {*} value\n   * @param {String|Number} key\n   * @param {Array<String|Number>} path\n   * @this {FormData}\n   *\n   * @returns {boolean} return true to visit the each prop of the value recursively\n   */\n  function defaultVisitor(value, key, path) {\n    let arr = value;\n\n    if (value && !path && typeof value === 'object') {\n      if (utils.endsWith(key, '{}')) {\n        // eslint-disable-next-line no-param-reassign\n        key = metaTokens ? key : key.slice(0, -2);\n        // eslint-disable-next-line no-param-reassign\n        value = JSON.stringify(value);\n      } else if (\n        (utils.isArray(value) && isFlatArray(value)) ||\n        ((utils.isFileList(value) || utils.endsWith(key, '[]')) && (arr = utils.toArray(value))\n        )) {\n        // eslint-disable-next-line no-param-reassign\n        key = removeBrackets(key);\n\n        arr.forEach(function each(el, index) {\n          !(utils.isUndefined(el) || el === null) && formData.append(\n            // eslint-disable-next-line no-nested-ternary\n            indexes === true ? renderKey([key], index, dots) : (indexes === null ? key : key + '[]'),\n            convertValue(el)\n          );\n        });\n        return false;\n      }\n    }\n\n    if (isVisitable(value)) {\n      return true;\n    }\n\n    formData.append(renderKey(path, key, dots), convertValue(value));\n\n    return false;\n  }\n\n  const stack = [];\n\n  const exposedHelpers = Object.assign(predicates, {\n    defaultVisitor,\n    convertValue,\n    isVisitable\n  });\n\n  function build(value, path) {\n    if (utils.isUndefined(value)) return;\n\n    if (stack.indexOf(value) !== -1) {\n      throw Error('Circular reference detected in ' + path.join('.'));\n    }\n\n    stack.push(value);\n\n    utils.forEach(value, function each(el, key) {\n      const result = !(utils.isUndefined(el) || el === null) && visitor.call(\n        formData, el, utils.isString(key) ? key.trim() : key, path, exposedHelpers\n      );\n\n      if (result === true) {\n        build(el, path ? path.concat(key) : [key]);\n      }\n    });\n\n    stack.pop();\n  }\n\n  if (!utils.isObject(obj)) {\n    throw new TypeError('data must be an object');\n  }\n\n  build(obj);\n\n  return formData;\n}\n\nexport default toFormData;\n","'use strict';\n\nimport toFormData from './toFormData.js';\n\n/**\n * It encodes a string by replacing all characters that are not in the unreserved set with\n * their percent-encoded equivalents\n *\n * @param {string} str - The string to encode.\n *\n * @returns {string} The encoded string.\n */\nfunction encode(str) {\n  const charMap = {\n    '!': '%21',\n    \"'\": '%27',\n    '(': '%28',\n    ')': '%29',\n    '~': '%7E',\n    '%20': '+',\n    '%00': '\\x00'\n  };\n  return encodeURIComponent(str).replace(/[!'()~]|%20|%00/g, function replacer(match) {\n    return charMap[match];\n  });\n}\n\n/**\n * It takes a params object and converts it to a FormData object\n *\n * @param {Object<string, any>} params - The parameters to be converted to a FormData object.\n * @param {Object<string, any>} options - The options object passed to the Axios constructor.\n *\n * @returns {void}\n */\nfunction AxiosURLSearchParams(params, options) {\n  this._pairs = [];\n\n  params && toFormData(params, this, options);\n}\n\nconst prototype = AxiosURLSearchParams.prototype;\n\nprototype.append = function append(name, value) {\n  this._pairs.push([name, value]);\n};\n\nprototype.toString = function toString(encoder) {\n  const _encode = encoder ? function(value) {\n    return encoder.call(this, value, encode);\n  } : encode;\n\n  return this._pairs.map(function each(pair) {\n    return _encode(pair[0]) + '=' + _encode(pair[1]);\n  }, '').join('&');\n};\n\nexport default AxiosURLSearchParams;\n","'use strict';\n\nimport utils from '../utils.js';\nimport AxiosURLSearchParams from '../helpers/AxiosURLSearchParams.js';\n\n/**\n * It replaces all instances of the characters `:`, `$`, `,`, `+`, `[`, and `]` with their\n * URI encoded counterparts\n *\n * @param {string} val The value to be encoded.\n *\n * @returns {string} The encoded value.\n */\nfunction encode(val) {\n  return encodeURIComponent(val).\n    replace(/%3A/gi, ':').\n    replace(/%24/g, '$').\n    replace(/%2C/gi, ',').\n    replace(/%20/g, '+').\n    replace(/%5B/gi, '[').\n    replace(/%5D/gi, ']');\n}\n\n/**\n * Build a URL by appending params to the end\n *\n * @param {string} url The base of the url (e.g., http://www.google.com)\n * @param {object} [params] The params to be appended\n * @param {?(object|Function)} options\n *\n * @returns {string} The formatted url\n */\nexport default function buildURL(url, params, options) {\n  /*eslint no-param-reassign:0*/\n  if (!params) {\n    return url;\n  }\n  \n  const _encode = options && options.encode || encode;\n\n  if (utils.isFunction(options)) {\n    options = {\n      serialize: options\n    };\n  } \n\n  const serializeFn = options && options.serialize;\n\n  let serializedParams;\n\n  if (serializeFn) {\n    serializedParams = serializeFn(params, options);\n  } else {\n    serializedParams = utils.isURLSearchParams(params) ?\n      params.toString() :\n      new AxiosURLSearchParams(params, options).toString(_encode);\n  }\n\n  if (serializedParams) {\n    const hashmarkIndex = url.indexOf(\"#\");\n\n    if (hashmarkIndex !== -1) {\n      url = url.slice(0, hashmarkIndex);\n    }\n    url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;\n  }\n\n  return url;\n}\n","'use strict';\n\nimport utils from './../utils.js';\n\nclass InterceptorManager {\n  constructor() {\n    this.handlers = [];\n  }\n\n  /**\n   * Add a new interceptor to the stack\n   *\n   * @param {Function} fulfilled The function to handle `then` for a `Promise`\n   * @param {Function} rejected The function to handle `reject` for a `Promise`\n   *\n   * @return {Number} An ID used to remove interceptor later\n   */\n  use(fulfilled, rejected, options) {\n    this.handlers.push({\n      fulfilled,\n      rejected,\n      synchronous: options ? options.synchronous : false,\n      runWhen: options ? options.runWhen : null\n    });\n    return this.handlers.length - 1;\n  }\n\n  /**\n   * Remove an interceptor from the stack\n   *\n   * @param {Number} id The ID that was returned by `use`\n   *\n   * @returns {Boolean} `true` if the interceptor was removed, `false` otherwise\n   */\n  eject(id) {\n    if (this.handlers[id]) {\n      this.handlers[id] = null;\n    }\n  }\n\n  /**\n   * Clear all interceptors from the stack\n   *\n   * @returns {void}\n   */\n  clear() {\n    if (this.handlers) {\n      this.handlers = [];\n    }\n  }\n\n  /**\n   * Iterate over all the registered interceptors\n   *\n   * This method is particularly useful for skipping over any\n   * interceptors that may have become `null` calling `eject`.\n   *\n   * @param {Function} fn The function to call for each interceptor\n   *\n   * @returns {void}\n   */\n  forEach(fn) {\n    utils.forEach(this.handlers, function forEachHandler(h) {\n      if (h !== null) {\n        fn(h);\n      }\n    });\n  }\n}\n\nexport default InterceptorManager;\n","'use strict';\n\nexport default {\n  silentJSONParsing: true,\n  forcedJSONParsing: true,\n  clarifyTimeoutError: false\n};\n","'use strict';\n\nimport AxiosURLSearchParams from '../../../helpers/AxiosURLSearchParams.js';\nexport default typeof URLSearchParams !== 'undefined' ? URLSearchParams : AxiosURLSearchParams;\n","'use strict';\n\nexport default typeof FormData !== 'undefined' ? FormData : null;\n","'use strict'\n\nexport default typeof Blob !== 'undefined' ? Blob : null\n","import URLSearchParams from './classes/URLSearchParams.js'\nimport FormData from './classes/FormData.js'\nimport Blob from './classes/Blob.js'\n\nexport default {\n  isBrowser: true,\n  classes: {\n    URLSearchParams,\n    FormData,\n    Blob\n  },\n  protocols: ['http', 'https', 'file', 'blob', 'url', 'data']\n};\n","const hasBrowserEnv = typeof window !== 'undefined' && typeof document !== 'undefined';\n\nconst _navigator = typeof navigator === 'object' && navigator || undefined;\n\n/**\n * Determine if we're running in a standard browser environment\n *\n * This allows axios to run in a web worker, and react-native.\n * Both environments support XMLHttpRequest, but not fully standard globals.\n *\n * web workers:\n *  typeof window -> undefined\n *  typeof document -> undefined\n *\n * react-native:\n *  navigator.product -> 'ReactNative'\n * nativescript\n *  navigator.product -> 'NativeScript' or 'NS'\n *\n * @returns {boolean}\n */\nconst hasStandardBrowserEnv = hasBrowserEnv &&\n  (!_navigator || ['ReactNative', 'NativeScript', 'NS'].indexOf(_navigator.product) < 0);\n\n/**\n * Determine if we're running in a standard browser webWorker environment\n *\n * Although the `isStandardBrowserEnv` method indicates that\n * `allows axios to run in a web worker`, the WebWorker will still be\n * filtered out due to its judgment standard\n * `typeof window !== 'undefined' && typeof document !== 'undefined'`.\n * This leads to a problem when axios post `FormData` in webWorker\n */\nconst hasStandardBrowserWebWorkerEnv = (() => {\n  return (\n    typeof WorkerGlobalScope !== 'undefined' &&\n    // eslint-disable-next-line no-undef\n    self instanceof WorkerGlobalScope &&\n    typeof self.importScripts === 'function'\n  );\n})();\n\nconst origin = hasBrowserEnv && window.location.href || 'http://localhost';\n\nexport {\n  hasBrowserEnv,\n  hasStandardBrowserWebWorkerEnv,\n  hasStandardBrowserEnv,\n  _navigator as navigator,\n  origin\n}\n","import platform from './node/index.js';\nimport * as utils from './common/utils.js';\n\nexport default {\n  ...utils,\n  ...platform\n}\n","'use strict';\n\nimport utils from '../utils.js';\nimport toFormData from './toFormData.js';\nimport platform from '../platform/index.js';\n\nexport default function toURLEncodedForm(data, options) {\n  return toFormData(data, new platform.classes.URLSearchParams(), Object.assign({\n    visitor: function(value, key, path, helpers) {\n      if (platform.isNode && utils.isBuffer(value)) {\n        this.append(key, value.toString('base64'));\n        return false;\n      }\n\n      return helpers.defaultVisitor.apply(this, arguments);\n    }\n  }, options));\n}\n","'use strict';\n\nimport utils from '../utils.js';\n\n/**\n * It takes a string like `foo[x][y][z]` and returns an array like `['foo', 'x', 'y', 'z']\n *\n * @param {string} name - The name of the property to get.\n *\n * @returns An array of strings.\n */\nfunction parsePropPath(name) {\n  // foo[x][y][z]\n  // foo.x.y.z\n  // foo-x-y-z\n  // foo x y z\n  return utils.matchAll(/\\w+|\\[(\\w*)]/g, name).map(match => {\n    return match[0] === '[]' ? '' : match[1] || match[0];\n  });\n}\n\n/**\n * Convert an array to an object.\n *\n * @param {Array<any>} arr - The array to convert to an object.\n *\n * @returns An object with the same keys and values as the array.\n */\nfunction arrayToObject(arr) {\n  const obj = {};\n  const keys = Object.keys(arr);\n  let i;\n  const len = keys.length;\n  let key;\n  for (i = 0; i < len; i++) {\n    key = keys[i];\n    obj[key] = arr[key];\n  }\n  return obj;\n}\n\n/**\n * It takes a FormData object and returns a JavaScript object\n *\n * @param {string} formData The FormData object to convert to JSON.\n *\n * @returns {Object<string, any> | null} The converted object.\n */\nfunction formDataToJSON(formData) {\n  function buildPath(path, value, target, index) {\n    let name = path[index++];\n\n    if (name === '__proto__') return true;\n\n    const isNumericKey = Number.isFinite(+name);\n    const isLast = index >= path.length;\n    name = !name && utils.isArray(target) ? target.length : name;\n\n    if (isLast) {\n      if (utils.hasOwnProp(target, name)) {\n        target[name] = [target[name], value];\n      } else {\n        target[name] = value;\n      }\n\n      return !isNumericKey;\n    }\n\n    if (!target[name] || !utils.isObject(target[name])) {\n      target[name] = [];\n    }\n\n    const result = buildPath(path, value, target[name], index);\n\n    if (result && utils.isArray(target[name])) {\n      target[name] = arrayToObject(target[name]);\n    }\n\n    return !isNumericKey;\n  }\n\n  if (utils.isFormData(formData) && utils.isFunction(formData.entries)) {\n    const obj = {};\n\n    utils.forEachEntry(formData, (name, value) => {\n      buildPath(parsePropPath(name), value, obj, 0);\n    });\n\n    return obj;\n  }\n\n  return null;\n}\n\nexport default formDataToJSON;\n","'use strict';\n\nimport utils from '../utils.js';\nimport AxiosError from '../core/AxiosError.js';\nimport transitionalDefaults from './transitional.js';\nimport toFormData from '../helpers/toFormData.js';\nimport toURLEncodedForm from '../helpers/toURLEncodedForm.js';\nimport platform from '../platform/index.js';\nimport formDataToJSON from '../helpers/formDataToJSON.js';\n\n/**\n * It takes a string, tries to parse it, and if it fails, it returns the stringified version\n * of the input\n *\n * @param {any} rawValue - The value to be stringified.\n * @param {Function} parser - A function that parses a string into a JavaScript object.\n * @param {Function} encoder - A function that takes a value and returns a string.\n *\n * @returns {string} A stringified version of the rawValue.\n */\nfunction stringifySafely(rawValue, parser, encoder) {\n  if (utils.isString(rawValue)) {\n    try {\n      (parser || JSON.parse)(rawValue);\n      return utils.trim(rawValue);\n    } catch (e) {\n      if (e.name !== 'SyntaxError') {\n        throw e;\n      }\n    }\n  }\n\n  return (encoder || JSON.stringify)(rawValue);\n}\n\nconst defaults = {\n\n  transitional: transitionalDefaults,\n\n  adapter: ['xhr', 'http', 'fetch'],\n\n  transformRequest: [function transformRequest(data, headers) {\n    const contentType = headers.getContentType() || '';\n    const hasJSONContentType = contentType.indexOf('application/json') > -1;\n    const isObjectPayload = utils.isObject(data);\n\n    if (isObjectPayload && utils.isHTMLForm(data)) {\n      data = new FormData(data);\n    }\n\n    const isFormData = utils.isFormData(data);\n\n    if (isFormData) {\n      return hasJSONContentType ? JSON.stringify(formDataToJSON(data)) : data;\n    }\n\n    if (utils.isArrayBuffer(data) ||\n      utils.isBuffer(data) ||\n      utils.isStream(data) ||\n      utils.isFile(data) ||\n      utils.isBlob(data) ||\n      utils.isReadableStream(data)\n    ) {\n      return data;\n    }\n    if (utils.isArrayBufferView(data)) {\n      return data.buffer;\n    }\n    if (utils.isURLSearchParams(data)) {\n      headers.setContentType('application/x-www-form-urlencoded;charset=utf-8', false);\n      return data.toString();\n    }\n\n    let isFileList;\n\n    if (isObjectPayload) {\n      if (contentType.indexOf('application/x-www-form-urlencoded') > -1) {\n        return toURLEncodedForm(data, this.formSerializer).toString();\n      }\n\n      if ((isFileList = utils.isFileList(data)) || contentType.indexOf('multipart/form-data') > -1) {\n        const _FormData = this.env && this.env.FormData;\n\n        return toFormData(\n          isFileList ? {'files[]': data} : data,\n          _FormData && new _FormData(),\n          this.formSerializer\n        );\n      }\n    }\n\n    if (isObjectPayload || hasJSONContentType ) {\n      headers.setContentType('application/json', false);\n      return stringifySafely(data);\n    }\n\n    return data;\n  }],\n\n  transformResponse: [function transformResponse(data) {\n    const transitional = this.transitional || defaults.transitional;\n    const forcedJSONParsing = transitional && transitional.forcedJSONParsing;\n    const JSONRequested = this.responseType === 'json';\n\n    if (utils.isResponse(data) || utils.isReadableStream(data)) {\n      return data;\n    }\n\n    if (data && utils.isString(data) && ((forcedJSONParsing && !this.responseType) || JSONRequested)) {\n      const silentJSONParsing = transitional && transitional.silentJSONParsing;\n      const strictJSONParsing = !silentJSONParsing && JSONRequested;\n\n      try {\n        return JSON.parse(data);\n      } catch (e) {\n        if (strictJSONParsing) {\n          if (e.name === 'SyntaxError') {\n            throw AxiosError.from(e, AxiosError.ERR_BAD_RESPONSE, this, null, this.response);\n          }\n          throw e;\n        }\n      }\n    }\n\n    return data;\n  }],\n\n  /**\n   * A timeout in milliseconds to abort a request. If set to 0 (default) a\n   * timeout is not created.\n   */\n  timeout: 0,\n\n  xsrfCookieName: 'XSRF-TOKEN',\n  xsrfHeaderName: 'X-XSRF-TOKEN',\n\n  maxContentLength: -1,\n  maxBodyLength: -1,\n\n  env: {\n    FormData: platform.classes.FormData,\n    Blob: platform.classes.Blob\n  },\n\n  validateStatus: function validateStatus(status) {\n    return status >= 200 && status < 300;\n  },\n\n  headers: {\n    common: {\n      'Accept': 'application/json, text/plain, */*',\n      'Content-Type': undefined\n    }\n  }\n};\n\nutils.forEach(['delete', 'get', 'head', 'post', 'put', 'patch'], (method) => {\n  defaults.headers[method] = {};\n});\n\nexport default defaults;\n","'use strict';\n\nimport utils from './../utils.js';\n\n// RawAxiosHeaders whose duplicates are ignored by node\n// c.f. https://nodejs.org/api/http.html#http_message_headers\nconst ignoreDuplicateOf = utils.toObjectSet([\n  'age', 'authorization', 'content-length', 'content-type', 'etag',\n  'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since',\n  'last-modified', 'location', 'max-forwards', 'proxy-authorization',\n  'referer', 'retry-after', 'user-agent'\n]);\n\n/**\n * Parse headers into an object\n *\n * ```\n * Date: Wed, 27 Aug 2014 08:58:49 GMT\n * Content-Type: application/json\n * Connection: keep-alive\n * Transfer-Encoding: chunked\n * ```\n *\n * @param {String} rawHeaders Headers needing to be parsed\n *\n * @returns {Object} Headers parsed into an object\n */\nexport default rawHeaders => {\n  const parsed = {};\n  let key;\n  let val;\n  let i;\n\n  rawHeaders && rawHeaders.split('\\n').forEach(function parser(line) {\n    i = line.indexOf(':');\n    key = line.substring(0, i).trim().toLowerCase();\n    val = line.substring(i + 1).trim();\n\n    if (!key || (parsed[key] && ignoreDuplicateOf[key])) {\n      return;\n    }\n\n    if (key === 'set-cookie') {\n      if (parsed[key]) {\n        parsed[key].push(val);\n      } else {\n        parsed[key] = [val];\n      }\n    } else {\n      parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;\n    }\n  });\n\n  return parsed;\n};\n","'use strict';\n\nimport utils from '../utils.js';\nimport parseHeaders from '../helpers/parseHeaders.js';\n\nconst $internals = Symbol('internals');\n\nfunction normalizeHeader(header) {\n  return header && String(header).trim().toLowerCase();\n}\n\nfunction normalizeValue(value) {\n  if (value === false || value == null) {\n    return value;\n  }\n\n  return utils.isArray(value) ? value.map(normalizeValue) : String(value);\n}\n\nfunction parseTokens(str) {\n  const tokens = Object.create(null);\n  const tokensRE = /([^\\s,;=]+)\\s*(?:=\\s*([^,;]+))?/g;\n  let match;\n\n  while ((match = tokensRE.exec(str))) {\n    tokens[match[1]] = match[2];\n  }\n\n  return tokens;\n}\n\nconst isValidHeaderName = (str) => /^[-_a-zA-Z0-9^`|~,!#$%&'*+.]+$/.test(str.trim());\n\nfunction matchHeaderValue(context, value, header, filter, isHeaderNameFilter) {\n  if (utils.isFunction(filter)) {\n    return filter.call(this, value, header);\n  }\n\n  if (isHeaderNameFilter) {\n    value = header;\n  }\n\n  if (!utils.isString(value)) return;\n\n  if (utils.isString(filter)) {\n    return value.indexOf(filter) !== -1;\n  }\n\n  if (utils.isRegExp(filter)) {\n    return filter.test(value);\n  }\n}\n\nfunction formatHeader(header) {\n  return header.trim()\n    .toLowerCase().replace(/([a-z\\d])(\\w*)/g, (w, char, str) => {\n      return char.toUpperCase() + str;\n    });\n}\n\nfunction buildAccessors(obj, header) {\n  const accessorName = utils.toCamelCase(' ' + header);\n\n  ['get', 'set', 'has'].forEach(methodName => {\n    Object.defineProperty(obj, methodName + accessorName, {\n      value: function(arg1, arg2, arg3) {\n        return this[methodName].call(this, header, arg1, arg2, arg3);\n      },\n      configurable: true\n    });\n  });\n}\n\nclass AxiosHeaders {\n  constructor(headers) {\n    headers && this.set(headers);\n  }\n\n  set(header, valueOrRewrite, rewrite) {\n    const self = this;\n\n    function setHeader(_value, _header, _rewrite) {\n      const lHeader = normalizeHeader(_header);\n\n      if (!lHeader) {\n        throw new Error('header name must be a non-empty string');\n      }\n\n      const key = utils.findKey(self, lHeader);\n\n      if(!key || self[key] === undefined || _rewrite === true || (_rewrite === undefined && self[key] !== false)) {\n        self[key || _header] = normalizeValue(_value);\n      }\n    }\n\n    const setHeaders = (headers, _rewrite) =>\n      utils.forEach(headers, (_value, _header) => setHeader(_value, _header, _rewrite));\n\n    if (utils.isPlainObject(header) || header instanceof this.constructor) {\n      setHeaders(header, valueOrRewrite)\n    } else if(utils.isString(header) && (header = header.trim()) && !isValidHeaderName(header)) {\n      setHeaders(parseHeaders(header), valueOrRewrite);\n    } else if (utils.isHeaders(header)) {\n      for (const [key, value] of header.entries()) {\n        setHeader(value, key, rewrite);\n      }\n    } else {\n      header != null && setHeader(valueOrRewrite, header, rewrite);\n    }\n\n    return this;\n  }\n\n  get(header, parser) {\n    header = normalizeHeader(header);\n\n    if (header) {\n      const key = utils.findKey(this, header);\n\n      if (key) {\n        const value = this[key];\n\n        if (!parser) {\n          return value;\n        }\n\n        if (parser === true) {\n          return parseTokens(value);\n        }\n\n        if (utils.isFunction(parser)) {\n          return parser.call(this, value, key);\n        }\n\n        if (utils.isRegExp(parser)) {\n          return parser.exec(value);\n        }\n\n        throw new TypeError('parser must be boolean|regexp|function');\n      }\n    }\n  }\n\n  has(header, matcher) {\n    header = normalizeHeader(header);\n\n    if (header) {\n      const key = utils.findKey(this, header);\n\n      return !!(key && this[key] !== undefined && (!matcher || matchHeaderValue(this, this[key], key, matcher)));\n    }\n\n    return false;\n  }\n\n  delete(header, matcher) {\n    const self = this;\n    let deleted = false;\n\n    function deleteHeader(_header) {\n      _header = normalizeHeader(_header);\n\n      if (_header) {\n        const key = utils.findKey(self, _header);\n\n        if (key && (!matcher || matchHeaderValue(self, self[key], key, matcher))) {\n          delete self[key];\n\n          deleted = true;\n        }\n      }\n    }\n\n    if (utils.isArray(header)) {\n      header.forEach(deleteHeader);\n    } else {\n      deleteHeader(header);\n    }\n\n    return deleted;\n  }\n\n  clear(matcher) {\n    const keys = Object.keys(this);\n    let i = keys.length;\n    let deleted = false;\n\n    while (i--) {\n      const key = keys[i];\n      if(!matcher || matchHeaderValue(this, this[key], key, matcher, true)) {\n        delete this[key];\n        deleted = true;\n      }\n    }\n\n    return deleted;\n  }\n\n  normalize(format) {\n    const self = this;\n    const headers = {};\n\n    utils.forEach(this, (value, header) => {\n      const key = utils.findKey(headers, header);\n\n      if (key) {\n        self[key] = normalizeValue(value);\n        delete self[header];\n        return;\n      }\n\n      const normalized = format ? formatHeader(header) : String(header).trim();\n\n      if (normalized !== header) {\n        delete self[header];\n      }\n\n      self[normalized] = normalizeValue(value);\n\n      headers[normalized] = true;\n    });\n\n    return this;\n  }\n\n  concat(...targets) {\n    return this.constructor.concat(this, ...targets);\n  }\n\n  toJSON(asStrings) {\n    const obj = Object.create(null);\n\n    utils.forEach(this, (value, header) => {\n      value != null && value !== false && (obj[header] = asStrings && utils.isArray(value) ? value.join(', ') : value);\n    });\n\n    return obj;\n  }\n\n  [Symbol.iterator]() {\n    return Object.entries(this.toJSON())[Symbol.iterator]();\n  }\n\n  toString() {\n    return Object.entries(this.toJSON()).map(([header, value]) => header + ': ' + value).join('\\n');\n  }\n\n  get [Symbol.toStringTag]() {\n    return 'AxiosHeaders';\n  }\n\n  static from(thing) {\n    return thing instanceof this ? thing : new this(thing);\n  }\n\n  static concat(first, ...targets) {\n    const computed = new this(first);\n\n    targets.forEach((target) => computed.set(target));\n\n    return computed;\n  }\n\n  static accessor(header) {\n    const internals = this[$internals] = (this[$internals] = {\n      accessors: {}\n    });\n\n    const accessors = internals.accessors;\n    const prototype = this.prototype;\n\n    function defineAccessor(_header) {\n      const lHeader = normalizeHeader(_header);\n\n      if (!accessors[lHeader]) {\n        buildAccessors(prototype, _header);\n        accessors[lHeader] = true;\n      }\n    }\n\n    utils.isArray(header) ? header.forEach(defineAccessor) : defineAccessor(header);\n\n    return this;\n  }\n}\n\nAxiosHeaders.accessor(['Content-Type', 'Content-Length', 'Accept', 'Accept-Encoding', 'User-Agent', 'Authorization']);\n\n// reserved names hotfix\nutils.reduceDescriptors(AxiosHeaders.prototype, ({value}, key) => {\n  let mapped = key[0].toUpperCase() + key.slice(1); // map `set` => `Set`\n  return {\n    get: () => value,\n    set(headerValue) {\n      this[mapped] = headerValue;\n    }\n  }\n});\n\nutils.freezeMethods(AxiosHeaders);\n\nexport default AxiosHeaders;\n","'use strict';\n\nimport utils from './../utils.js';\nimport defaults from '../defaults/index.js';\nimport AxiosHeaders from '../core/AxiosHeaders.js';\n\n/**\n * Transform the data for a request or a response\n *\n * @param {Array|Function} fns A single function or Array of functions\n * @param {?Object} response The response object\n *\n * @returns {*} The resulting transformed data\n */\nexport default function transformData(fns, response) {\n  const config = this || defaults;\n  const context = response || config;\n  const headers = AxiosHeaders.from(context.headers);\n  let data = context.data;\n\n  utils.forEach(fns, function transform(fn) {\n    data = fn.call(config, data, headers.normalize(), response ? response.status : undefined);\n  });\n\n  headers.normalize();\n\n  return data;\n}\n","'use strict';\n\nexport default function isCancel(value) {\n  return !!(value && value.__CANCEL__);\n}\n","'use strict';\n\nimport AxiosError from '../core/AxiosError.js';\nimport utils from '../utils.js';\n\n/**\n * A `CanceledError` is an object that is thrown when an operation is canceled.\n *\n * @param {string=} message The message.\n * @param {Object=} config The config.\n * @param {Object=} request The request.\n *\n * @returns {CanceledError} The created error.\n */\nfunction CanceledError(message, config, request) {\n  // eslint-disable-next-line no-eq-null,eqeqeq\n  AxiosError.call(this, message == null ? 'canceled' : message, AxiosError.ERR_CANCELED, config, request);\n  this.name = 'CanceledError';\n}\n\nutils.inherits(CanceledError, AxiosError, {\n  __CANCEL__: true\n});\n\nexport default CanceledError;\n","'use strict';\n\nimport AxiosError from './AxiosError.js';\n\n/**\n * Resolve or reject a Promise based on response status.\n *\n * @param {Function} resolve A function that resolves the promise.\n * @param {Function} reject A function that rejects the promise.\n * @param {object} response The response.\n *\n * @returns {object} The response.\n */\nexport default function settle(resolve, reject, response) {\n  const validateStatus = response.config.validateStatus;\n  if (!response.status || !validateStatus || validateStatus(response.status)) {\n    resolve(response);\n  } else {\n    reject(new AxiosError(\n      'Request failed with status code ' + response.status,\n      [AxiosError.ERR_BAD_REQUEST, AxiosError.ERR_BAD_RESPONSE][Math.floor(response.status / 100) - 4],\n      response.config,\n      response.request,\n      response\n    ));\n  }\n}\n","'use strict';\n\nexport default function parseProtocol(url) {\n  const match = /^([-+\\w]{1,25})(:?\\/\\/|:)/.exec(url);\n  return match && match[1] || '';\n}\n","'use strict';\n\n/**\n * Calculate data maxRate\n * @param {Number} [samplesCount= 10]\n * @param {Number} [min= 1000]\n * @returns {Function}\n */\nfunction speedometer(samplesCount, min) {\n  samplesCount = samplesCount || 10;\n  const bytes = new Array(samplesCount);\n  const timestamps = new Array(samplesCount);\n  let head = 0;\n  let tail = 0;\n  let firstSampleTS;\n\n  min = min !== undefined ? min : 1000;\n\n  return function push(chunkLength) {\n    const now = Date.now();\n\n    const startedAt = timestamps[tail];\n\n    if (!firstSampleTS) {\n      firstSampleTS = now;\n    }\n\n    bytes[head] = chunkLength;\n    timestamps[head] = now;\n\n    let i = tail;\n    let bytesCount = 0;\n\n    while (i !== head) {\n      bytesCount += bytes[i++];\n      i = i % samplesCount;\n    }\n\n    head = (head + 1) % samplesCount;\n\n    if (head === tail) {\n      tail = (tail + 1) % samplesCount;\n    }\n\n    if (now - firstSampleTS < min) {\n      return;\n    }\n\n    const passed = startedAt && now - startedAt;\n\n    return passed ? Math.round(bytesCount * 1000 / passed) : undefined;\n  };\n}\n\nexport default speedometer;\n","/**\n * Throttle decorator\n * @param {Function} fn\n * @param {Number} freq\n * @return {Function}\n */\nfunction throttle(fn, freq) {\n  let timestamp = 0;\n  let threshold = 1000 / freq;\n  let lastArgs;\n  let timer;\n\n  const invoke = (args, now = Date.now()) => {\n    timestamp = now;\n    lastArgs = null;\n    if (timer) {\n      clearTimeout(timer);\n      timer = null;\n    }\n    fn.apply(null, args);\n  }\n\n  const throttled = (...args) => {\n    const now = Date.now();\n    const passed = now - timestamp;\n    if ( passed >= threshold) {\n      invoke(args, now);\n    } else {\n      lastArgs = args;\n      if (!timer) {\n        timer = setTimeout(() => {\n          timer = null;\n          invoke(lastArgs)\n        }, threshold - passed);\n      }\n    }\n  }\n\n  const flush = () => lastArgs && invoke(lastArgs);\n\n  return [throttled, flush];\n}\n\nexport default throttle;\n","import speedometer from \"./speedometer.js\";\nimport throttle from \"./throttle.js\";\nimport utils from \"../utils.js\";\n\nexport const progressEventReducer = (listener, isDownloadStream, freq = 3) => {\n  let bytesNotified = 0;\n  const _speedometer = speedometer(50, 250);\n\n  return throttle(e => {\n    const loaded = e.loaded;\n    const total = e.lengthComputable ? e.total : undefined;\n    const progressBytes = loaded - bytesNotified;\n    const rate = _speedometer(progressBytes);\n    const inRange = loaded <= total;\n\n    bytesNotified = loaded;\n\n    const data = {\n      loaded,\n      total,\n      progress: total ? (loaded / total) : undefined,\n      bytes: progressBytes,\n      rate: rate ? rate : undefined,\n      estimated: rate && total && inRange ? (total - loaded) / rate : undefined,\n      event: e,\n      lengthComputable: total != null,\n      [isDownloadStream ? 'download' : 'upload']: true\n    };\n\n    listener(data);\n  }, freq);\n}\n\nexport const progressEventDecorator = (total, throttled) => {\n  const lengthComputable = total != null;\n\n  return [(loaded) => throttled[0]({\n    lengthComputable,\n    total,\n    loaded\n  }), throttled[1]];\n}\n\nexport const asyncDecorator = (fn) => (...args) => utils.asap(() => fn(...args));\n","import platform from '../platform/index.js';\n\nexport default platform.hasStandardBrowserEnv ? ((origin, isMSIE) => (url) => {\n  url = new URL(url, platform.origin);\n\n  return (\n    origin.protocol === url.protocol &&\n    origin.host === url.host &&\n    (isMSIE || origin.port === url.port)\n  );\n})(\n  new URL(platform.origin),\n  platform.navigator && /(msie|trident)/i.test(platform.navigator.userAgent)\n) : () => true;\n","import utils from './../utils.js';\nimport platform from '../platform/index.js';\n\nexport default platform.hasStandardBrowserEnv ?\n\n  // Standard browser envs support document.cookie\n  {\n    write(name, value, expires, path, domain, secure) {\n      const cookie = [name + '=' + encodeURIComponent(value)];\n\n      utils.isNumber(expires) && cookie.push('expires=' + new Date(expires).toGMTString());\n\n      utils.isString(path) && cookie.push('path=' + path);\n\n      utils.isString(domain) && cookie.push('domain=' + domain);\n\n      secure === true && cookie.push('secure');\n\n      document.cookie = cookie.join('; ');\n    },\n\n    read(name) {\n      const match = document.cookie.match(new RegExp('(^|;\\\\s*)(' + name + ')=([^;]*)'));\n      return (match ? decodeURIComponent(match[3]) : null);\n    },\n\n    remove(name) {\n      this.write(name, '', Date.now() - 86400000);\n    }\n  }\n\n  :\n\n  // Non-standard browser env (web workers, react-native) lack needed support.\n  {\n    write() {},\n    read() {\n      return null;\n    },\n    remove() {}\n  };\n\n","'use strict';\n\n/**\n * Determines whether the specified URL is absolute\n *\n * @param {string} url The URL to test\n *\n * @returns {boolean} True if the specified URL is absolute, otherwise false\n */\nexport default function isAbsoluteURL(url) {\n  // A URL is considered absolute if it begins with \"<scheme>://\" or \"//\" (protocol-relative URL).\n  // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed\n  // by any combination of letters, digits, plus, period, or hyphen.\n  return /^([a-z][a-z\\d+\\-.]*:)?\\/\\//i.test(url);\n}\n","'use strict';\n\n/**\n * Creates a new URL by combining the specified URLs\n *\n * @param {string} baseURL The base URL\n * @param {string} relativeURL The relative URL\n *\n * @returns {string} The combined URL\n */\nexport default function combineURLs(baseURL, relativeURL) {\n  return relativeURL\n    ? baseURL.replace(/\\/?\\/$/, '') + '/' + relativeURL.replace(/^\\/+/, '')\n    : baseURL;\n}\n","'use strict';\n\nimport isAbsoluteURL from '../helpers/isAbsoluteURL.js';\nimport combineURLs from '../helpers/combineURLs.js';\n\n/**\n * Creates a new URL by combining the baseURL with the requestedURL,\n * only when the requestedURL is not already an absolute URL.\n * If the requestURL is absolute, this function returns the requestedURL untouched.\n *\n * @param {string} baseURL The base URL\n * @param {string} requestedURL Absolute or relative URL to combine\n *\n * @returns {string} The combined full path\n */\nexport default function buildFullPath(baseURL, requestedURL) {\n  if (baseURL && !isAbsoluteURL(requestedURL)) {\n    return combineURLs(baseURL, requestedURL);\n  }\n  return requestedURL;\n}\n","'use strict';\n\nimport utils from '../utils.js';\nimport AxiosHeaders from \"./AxiosHeaders.js\";\n\nconst headersToObject = (thing) => thing instanceof AxiosHeaders ? { ...thing } : thing;\n\n/**\n * Config-specific merge-function which creates a new config-object\n * by merging two configuration objects together.\n *\n * @param {Object} config1\n * @param {Object} config2\n *\n * @returns {Object} New object resulting from merging config2 to config1\n */\nexport default function mergeConfig(config1, config2) {\n  // eslint-disable-next-line no-param-reassign\n  config2 = config2 || {};\n  const config = {};\n\n  function getMergedValue(target, source, prop, caseless) {\n    if (utils.isPlainObject(target) && utils.isPlainObject(source)) {\n      return utils.merge.call({caseless}, target, source);\n    } else if (utils.isPlainObject(source)) {\n      return utils.merge({}, source);\n    } else if (utils.isArray(source)) {\n      return source.slice();\n    }\n    return source;\n  }\n\n  // eslint-disable-next-line consistent-return\n  function mergeDeepProperties(a, b, prop , caseless) {\n    if (!utils.isUndefined(b)) {\n      return getMergedValue(a, b, prop , caseless);\n    } else if (!utils.isUndefined(a)) {\n      return getMergedValue(undefined, a, prop , caseless);\n    }\n  }\n\n  // eslint-disable-next-line consistent-return\n  function valueFromConfig2(a, b) {\n    if (!utils.isUndefined(b)) {\n      return getMergedValue(undefined, b);\n    }\n  }\n\n  // eslint-disable-next-line consistent-return\n  function defaultToConfig2(a, b) {\n    if (!utils.isUndefined(b)) {\n      return getMergedValue(undefined, b);\n    } else if (!utils.isUndefined(a)) {\n      return getMergedValue(undefined, a);\n    }\n  }\n\n  // eslint-disable-next-line consistent-return\n  function mergeDirectKeys(a, b, prop) {\n    if (prop in config2) {\n      return getMergedValue(a, b);\n    } else if (prop in config1) {\n      return getMergedValue(undefined, a);\n    }\n  }\n\n  const mergeMap = {\n    url: valueFromConfig2,\n    method: valueFromConfig2,\n    data: valueFromConfig2,\n    baseURL: defaultToConfig2,\n    transformRequest: defaultToConfig2,\n    transformResponse: defaultToConfig2,\n    paramsSerializer: defaultToConfig2,\n    timeout: defaultToConfig2,\n    timeoutMessage: defaultToConfig2,\n    withCredentials: defaultToConfig2,\n    withXSRFToken: defaultToConfig2,\n    adapter: defaultToConfig2,\n    responseType: defaultToConfig2,\n    xsrfCookieName: defaultToConfig2,\n    xsrfHeaderName: defaultToConfig2,\n    onUploadProgress: defaultToConfig2,\n    onDownloadProgress: defaultToConfig2,\n    decompress: defaultToConfig2,\n    maxContentLength: defaultToConfig2,\n    maxBodyLength: defaultToConfig2,\n    beforeRedirect: defaultToConfig2,\n    transport: defaultToConfig2,\n    httpAgent: defaultToConfig2,\n    httpsAgent: defaultToConfig2,\n    cancelToken: defaultToConfig2,\n    socketPath: defaultToConfig2,\n    responseEncoding: defaultToConfig2,\n    validateStatus: mergeDirectKeys,\n    headers: (a, b , prop) => mergeDeepProperties(headersToObject(a), headersToObject(b),prop, true)\n  };\n\n  utils.forEach(Object.keys(Object.assign({}, config1, config2)), function computeConfigValue(prop) {\n    const merge = mergeMap[prop] || mergeDeepProperties;\n    const configValue = merge(config1[prop], config2[prop], prop);\n    (utils.isUndefined(configValue) && merge !== mergeDirectKeys) || (config[prop] = configValue);\n  });\n\n  return config;\n}\n","import platform from \"../platform/index.js\";\nimport utils from \"../utils.js\";\nimport isURLSameOrigin from \"./isURLSameOrigin.js\";\nimport cookies from \"./cookies.js\";\nimport buildFullPath from \"../core/buildFullPath.js\";\nimport mergeConfig from \"../core/mergeConfig.js\";\nimport AxiosHeaders from \"../core/AxiosHeaders.js\";\nimport buildURL from \"./buildURL.js\";\n\nexport default (config) => {\n  const newConfig = mergeConfig({}, config);\n\n  let {data, withXSRFToken, xsrfHeaderName, xsrfCookieName, headers, auth} = newConfig;\n\n  newConfig.headers = headers = AxiosHeaders.from(headers);\n\n  newConfig.url = buildURL(buildFullPath(newConfig.baseURL, newConfig.url), config.params, config.paramsSerializer);\n\n  // HTTP basic authentication\n  if (auth) {\n    headers.set('Authorization', 'Basic ' +\n      btoa((auth.username || '') + ':' + (auth.password ? unescape(encodeURIComponent(auth.password)) : ''))\n    );\n  }\n\n  let contentType;\n\n  if (utils.isFormData(data)) {\n    if (platform.hasStandardBrowserEnv || platform.hasStandardBrowserWebWorkerEnv) {\n      headers.setContentType(undefined); // Let the browser set it\n    } else if ((contentType = headers.getContentType()) !== false) {\n      // fix semicolon duplication issue for ReactNative FormData implementation\n      const [type, ...tokens] = contentType ? contentType.split(';').map(token => token.trim()).filter(Boolean) : [];\n      headers.setContentType([type || 'multipart/form-data', ...tokens].join('; '));\n    }\n  }\n\n  // Add xsrf header\n  // This is only done if running in a standard browser environment.\n  // Specifically not if we're in a web worker, or react-native.\n\n  if (platform.hasStandardBrowserEnv) {\n    withXSRFToken && utils.isFunction(withXSRFToken) && (withXSRFToken = withXSRFToken(newConfig));\n\n    if (withXSRFToken || (withXSRFToken !== false && isURLSameOrigin(newConfig.url))) {\n      // Add xsrf header\n      const xsrfValue = xsrfHeaderName && xsrfCookieName && cookies.read(xsrfCookieName);\n\n      if (xsrfValue) {\n        headers.set(xsrfHeaderName, xsrfValue);\n      }\n    }\n  }\n\n  return newConfig;\n}\n\n","import utils from './../utils.js';\nimport settle from './../core/settle.js';\nimport transitionalDefaults from '../defaults/transitional.js';\nimport AxiosError from '../core/AxiosError.js';\nimport CanceledError from '../cancel/CanceledError.js';\nimport parseProtocol from '../helpers/parseProtocol.js';\nimport platform from '../platform/index.js';\nimport AxiosHeaders from '../core/AxiosHeaders.js';\nimport {progressEventReducer} from '../helpers/progressEventReducer.js';\nimport resolveConfig from \"../helpers/resolveConfig.js\";\n\nconst isXHRAdapterSupported = typeof XMLHttpRequest !== 'undefined';\n\nexport default isXHRAdapterSupported && function (config) {\n  return new Promise(function dispatchXhrRequest(resolve, reject) {\n    const _config = resolveConfig(config);\n    let requestData = _config.data;\n    const requestHeaders = AxiosHeaders.from(_config.headers).normalize();\n    let {responseType, onUploadProgress, onDownloadProgress} = _config;\n    let onCanceled;\n    let uploadThrottled, downloadThrottled;\n    let flushUpload, flushDownload;\n\n    function done() {\n      flushUpload && flushUpload(); // flush events\n      flushDownload && flushDownload(); // flush events\n\n      _config.cancelToken && _config.cancelToken.unsubscribe(onCanceled);\n\n      _config.signal && _config.signal.removeEventListener('abort', onCanceled);\n    }\n\n    let request = new XMLHttpRequest();\n\n    request.open(_config.method.toUpperCase(), _config.url, true);\n\n    // Set the request timeout in MS\n    request.timeout = _config.timeout;\n\n    function onloadend() {\n      if (!request) {\n        return;\n      }\n      // Prepare the response\n      const responseHeaders = AxiosHeaders.from(\n        'getAllResponseHeaders' in request && request.getAllResponseHeaders()\n      );\n      const responseData = !responseType || responseType === 'text' || responseType === 'json' ?\n        request.responseText : request.response;\n      const response = {\n        data: responseData,\n        status: request.status,\n        statusText: request.statusText,\n        headers: responseHeaders,\n        config,\n        request\n      };\n\n      settle(function _resolve(value) {\n        resolve(value);\n        done();\n      }, function _reject(err) {\n        reject(err);\n        done();\n      }, response);\n\n      // Clean up request\n      request = null;\n    }\n\n    if ('onloadend' in request) {\n      // Use onloadend if available\n      request.onloadend = onloadend;\n    } else {\n      // Listen for ready state to emulate onloadend\n      request.onreadystatechange = function handleLoad() {\n        if (!request || request.readyState !== 4) {\n          return;\n        }\n\n        // The request errored out and we didn't get a response, this will be\n        // handled by onerror instead\n        // With one exception: request that using file: protocol, most browsers\n        // will return status as 0 even though it's a successful request\n        if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {\n          return;\n        }\n        // readystate handler is calling before onerror or ontimeout handlers,\n        // so we should call onloadend on the next 'tick'\n        setTimeout(onloadend);\n      };\n    }\n\n    // Handle browser request cancellation (as opposed to a manual cancellation)\n    request.onabort = function handleAbort() {\n      if (!request) {\n        return;\n      }\n\n      reject(new AxiosError('Request aborted', AxiosError.ECONNABORTED, config, request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Handle low level network errors\n    request.onerror = function handleError() {\n      // Real errors are hidden from us by the browser\n      // onerror should only fire if it's a network error\n      reject(new AxiosError('Network Error', AxiosError.ERR_NETWORK, config, request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Handle timeout\n    request.ontimeout = function handleTimeout() {\n      let timeoutErrorMessage = _config.timeout ? 'timeout of ' + _config.timeout + 'ms exceeded' : 'timeout exceeded';\n      const transitional = _config.transitional || transitionalDefaults;\n      if (_config.timeoutErrorMessage) {\n        timeoutErrorMessage = _config.timeoutErrorMessage;\n      }\n      reject(new AxiosError(\n        timeoutErrorMessage,\n        transitional.clarifyTimeoutError ? AxiosError.ETIMEDOUT : AxiosError.ECONNABORTED,\n        config,\n        request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Remove Content-Type if data is undefined\n    requestData === undefined && requestHeaders.setContentType(null);\n\n    // Add headers to the request\n    if ('setRequestHeader' in request) {\n      utils.forEach(requestHeaders.toJSON(), function setRequestHeader(val, key) {\n        request.setRequestHeader(key, val);\n      });\n    }\n\n    // Add withCredentials to request if needed\n    if (!utils.isUndefined(_config.withCredentials)) {\n      request.withCredentials = !!_config.withCredentials;\n    }\n\n    // Add responseType to request if needed\n    if (responseType && responseType !== 'json') {\n      request.responseType = _config.responseType;\n    }\n\n    // Handle progress if needed\n    if (onDownloadProgress) {\n      ([downloadThrottled, flushDownload] = progressEventReducer(onDownloadProgress, true));\n      request.addEventListener('progress', downloadThrottled);\n    }\n\n    // Not all browsers support upload events\n    if (onUploadProgress && request.upload) {\n      ([uploadThrottled, flushUpload] = progressEventReducer(onUploadProgress));\n\n      request.upload.addEventListener('progress', uploadThrottled);\n\n      request.upload.addEventListener('loadend', flushUpload);\n    }\n\n    if (_config.cancelToken || _config.signal) {\n      // Handle cancellation\n      // eslint-disable-next-line func-names\n      onCanceled = cancel => {\n        if (!request) {\n          return;\n        }\n        reject(!cancel || cancel.type ? new CanceledError(null, config, request) : cancel);\n        request.abort();\n        request = null;\n      };\n\n      _config.cancelToken && _config.cancelToken.subscribe(onCanceled);\n      if (_config.signal) {\n        _config.signal.aborted ? onCanceled() : _config.signal.addEventListener('abort', onCanceled);\n      }\n    }\n\n    const protocol = parseProtocol(_config.url);\n\n    if (protocol && platform.protocols.indexOf(protocol) === -1) {\n      reject(new AxiosError('Unsupported protocol ' + protocol + ':', AxiosError.ERR_BAD_REQUEST, config));\n      return;\n    }\n\n\n    // Send the request\n    request.send(requestData || null);\n  });\n}\n","import CanceledError from \"../cancel/CanceledError.js\";\nimport AxiosError from \"../core/AxiosError.js\";\nimport utils from '../utils.js';\n\nconst composeSignals = (signals, timeout) => {\n  const {length} = (signals = signals ? signals.filter(Boolean) : []);\n\n  if (timeout || length) {\n    let controller = new AbortController();\n\n    let aborted;\n\n    const onabort = function (reason) {\n      if (!aborted) {\n        aborted = true;\n        unsubscribe();\n        const err = reason instanceof Error ? reason : this.reason;\n        controller.abort(err instanceof AxiosError ? err : new CanceledError(err instanceof Error ? err.message : err));\n      }\n    }\n\n    let timer = timeout && setTimeout(() => {\n      timer = null;\n      onabort(new AxiosError(`timeout ${timeout} of ms exceeded`, AxiosError.ETIMEDOUT))\n    }, timeout)\n\n    const unsubscribe = () => {\n      if (signals) {\n        timer && clearTimeout(timer);\n        timer = null;\n        signals.forEach(signal => {\n          signal.unsubscribe ? signal.unsubscribe(onabort) : signal.removeEventListener('abort', onabort);\n        });\n        signals = null;\n      }\n    }\n\n    signals.forEach((signal) => signal.addEventListener('abort', onabort));\n\n    const {signal} = controller;\n\n    signal.unsubscribe = () => utils.asap(unsubscribe);\n\n    return signal;\n  }\n}\n\nexport default composeSignals;\n","\nexport const streamChunk = function* (chunk, chunkSize) {\n  let len = chunk.byteLength;\n\n  if (!chunkSize || len < chunkSize) {\n    yield chunk;\n    return;\n  }\n\n  let pos = 0;\n  let end;\n\n  while (pos < len) {\n    end = pos + chunkSize;\n    yield chunk.slice(pos, end);\n    pos = end;\n  }\n}\n\nexport const readBytes = async function* (iterable, chunkSize) {\n  for await (const chunk of readStream(iterable)) {\n    yield* streamChunk(chunk, chunkSize);\n  }\n}\n\nconst readStream = async function* (stream) {\n  if (stream[Symbol.asyncIterator]) {\n    yield* stream;\n    return;\n  }\n\n  const reader = stream.getReader();\n  try {\n    for (;;) {\n      const {done, value} = await reader.read();\n      if (done) {\n        break;\n      }\n      yield value;\n    }\n  } finally {\n    await reader.cancel();\n  }\n}\n\nexport const trackStream = (stream, chunkSize, onProgress, onFinish) => {\n  const iterator = readBytes(stream, chunkSize);\n\n  let bytes = 0;\n  let done;\n  let _onFinish = (e) => {\n    if (!done) {\n      done = true;\n      onFinish && onFinish(e);\n    }\n  }\n\n  return new ReadableStream({\n    async pull(controller) {\n      try {\n        const {done, value} = await iterator.next();\n\n        if (done) {\n         _onFinish();\n          controller.close();\n          return;\n        }\n\n        let len = value.byteLength;\n        if (onProgress) {\n          let loadedBytes = bytes += len;\n          onProgress(loadedBytes);\n        }\n        controller.enqueue(new Uint8Array(value));\n      } catch (err) {\n        _onFinish(err);\n        throw err;\n      }\n    },\n    cancel(reason) {\n      _onFinish(reason);\n      return iterator.return();\n    }\n  }, {\n    highWaterMark: 2\n  })\n}\n","import platform from \"../platform/index.js\";\nimport utils from \"../utils.js\";\nimport AxiosError from \"../core/AxiosError.js\";\nimport composeSignals from \"../helpers/composeSignals.js\";\nimport {trackStream} from \"../helpers/trackStream.js\";\nimport AxiosHeaders from \"../core/AxiosHeaders.js\";\nimport {progressEventReducer, progressEventDecorator, asyncDecorator} from \"../helpers/progressEventReducer.js\";\nimport resolveConfig from \"../helpers/resolveConfig.js\";\nimport settle from \"../core/settle.js\";\n\nconst isFetchSupported = typeof fetch === 'function' && typeof Request === 'function' && typeof Response === 'function';\nconst isReadableStreamSupported = isFetchSupported && typeof ReadableStream === 'function';\n\n// used only inside the fetch adapter\nconst encodeText = isFetchSupported && (typeof TextEncoder === 'function' ?\n    ((encoder) => (str) => encoder.encode(str))(new TextEncoder()) :\n    async (str) => new Uint8Array(await new Response(str).arrayBuffer())\n);\n\nconst test = (fn, ...args) => {\n  try {\n    return !!fn(...args);\n  } catch (e) {\n    return false\n  }\n}\n\nconst supportsRequestStream = isReadableStreamSupported && test(() => {\n  let duplexAccessed = false;\n\n  const hasContentType = new Request(platform.origin, {\n    body: new ReadableStream(),\n    method: 'POST',\n    get duplex() {\n      duplexAccessed = true;\n      return 'half';\n    },\n  }).headers.has('Content-Type');\n\n  return duplexAccessed && !hasContentType;\n});\n\nconst DEFAULT_CHUNK_SIZE = 64 * 1024;\n\nconst supportsResponseStream = isReadableStreamSupported &&\n  test(() => utils.isReadableStream(new Response('').body));\n\n\nconst resolvers = {\n  stream: supportsResponseStream && ((res) => res.body)\n};\n\nisFetchSupported && (((res) => {\n  ['text', 'arrayBuffer', 'blob', 'formData', 'stream'].forEach(type => {\n    !resolvers[type] && (resolvers[type] = utils.isFunction(res[type]) ? (res) => res[type]() :\n      (_, config) => {\n        throw new AxiosError(`Response type '${type}' is not supported`, AxiosError.ERR_NOT_SUPPORT, config);\n      })\n  });\n})(new Response));\n\nconst getBodyLength = async (body) => {\n  if (body == null) {\n    return 0;\n  }\n\n  if(utils.isBlob(body)) {\n    return body.size;\n  }\n\n  if(utils.isSpecCompliantForm(body)) {\n    const _request = new Request(platform.origin, {\n      method: 'POST',\n      body,\n    });\n    return (await _request.arrayBuffer()).byteLength;\n  }\n\n  if(utils.isArrayBufferView(body) || utils.isArrayBuffer(body)) {\n    return body.byteLength;\n  }\n\n  if(utils.isURLSearchParams(body)) {\n    body = body + '';\n  }\n\n  if(utils.isString(body)) {\n    return (await encodeText(body)).byteLength;\n  }\n}\n\nconst resolveBodyLength = async (headers, body) => {\n  const length = utils.toFiniteNumber(headers.getContentLength());\n\n  return length == null ? getBodyLength(body) : length;\n}\n\nexport default isFetchSupported && (async (config) => {\n  let {\n    url,\n    method,\n    data,\n    signal,\n    cancelToken,\n    timeout,\n    onDownloadProgress,\n    onUploadProgress,\n    responseType,\n    headers,\n    withCredentials = 'same-origin',\n    fetchOptions\n  } = resolveConfig(config);\n\n  responseType = responseType ? (responseType + '').toLowerCase() : 'text';\n\n  let composedSignal = composeSignals([signal, cancelToken && cancelToken.toAbortSignal()], timeout);\n\n  let request;\n\n  const unsubscribe = composedSignal && composedSignal.unsubscribe && (() => {\n      composedSignal.unsubscribe();\n  });\n\n  let requestContentLength;\n\n  try {\n    if (\n      onUploadProgress && supportsRequestStream && method !== 'get' && method !== 'head' &&\n      (requestContentLength = await resolveBodyLength(headers, data)) !== 0\n    ) {\n      let _request = new Request(url, {\n        method: 'POST',\n        body: data,\n        duplex: \"half\"\n      });\n\n      let contentTypeHeader;\n\n      if (utils.isFormData(data) && (contentTypeHeader = _request.headers.get('content-type'))) {\n        headers.setContentType(contentTypeHeader)\n      }\n\n      if (_request.body) {\n        const [onProgress, flush] = progressEventDecorator(\n          requestContentLength,\n          progressEventReducer(asyncDecorator(onUploadProgress))\n        );\n\n        data = trackStream(_request.body, DEFAULT_CHUNK_SIZE, onProgress, flush);\n      }\n    }\n\n    if (!utils.isString(withCredentials)) {\n      withCredentials = withCredentials ? 'include' : 'omit';\n    }\n\n    // Cloudflare Workers throws when credentials are defined\n    // see https://github.com/cloudflare/workerd/issues/902\n    const isCredentialsSupported = \"credentials\" in Request.prototype;\n    request = new Request(url, {\n      ...fetchOptions,\n      signal: composedSignal,\n      method: method.toUpperCase(),\n      headers: headers.normalize().toJSON(),\n      body: data,\n      duplex: \"half\",\n      credentials: isCredentialsSupported ? withCredentials : undefined\n    });\n\n    let response = await fetch(request);\n\n    const isStreamResponse = supportsResponseStream && (responseType === 'stream' || responseType === 'response');\n\n    if (supportsResponseStream && (onDownloadProgress || (isStreamResponse && unsubscribe))) {\n      const options = {};\n\n      ['status', 'statusText', 'headers'].forEach(prop => {\n        options[prop] = response[prop];\n      });\n\n      const responseContentLength = utils.toFiniteNumber(response.headers.get('content-length'));\n\n      const [onProgress, flush] = onDownloadProgress && progressEventDecorator(\n        responseContentLength,\n        progressEventReducer(asyncDecorator(onDownloadProgress), true)\n      ) || [];\n\n      response = new Response(\n        trackStream(response.body, DEFAULT_CHUNK_SIZE, onProgress, () => {\n          flush && flush();\n          unsubscribe && unsubscribe();\n        }),\n        options\n      );\n    }\n\n    responseType = responseType || 'text';\n\n    let responseData = await resolvers[utils.findKey(resolvers, responseType) || 'text'](response, config);\n\n    !isStreamResponse && unsubscribe && unsubscribe();\n\n    return await new Promise((resolve, reject) => {\n      settle(resolve, reject, {\n        data: responseData,\n        headers: AxiosHeaders.from(response.headers),\n        status: response.status,\n        statusText: response.statusText,\n        config,\n        request\n      })\n    })\n  } catch (err) {\n    unsubscribe && unsubscribe();\n\n    if (err && err.name === 'TypeError' && /fetch/i.test(err.message)) {\n      throw Object.assign(\n        new AxiosError('Network Error', AxiosError.ERR_NETWORK, config, request),\n        {\n          cause: err.cause || err\n        }\n      )\n    }\n\n    throw AxiosError.from(err, err && err.code, config, request);\n  }\n});\n\n\n","import utils from '../utils.js';\nimport httpAdapter from './http.js';\nimport xhrAdapter from './xhr.js';\nimport fetchAdapter from './fetch.js';\nimport AxiosError from \"../core/AxiosError.js\";\n\nconst knownAdapters = {\n  http: httpAdapter,\n  xhr: xhrAdapter,\n  fetch: fetchAdapter\n}\n\nutils.forEach(knownAdapters, (fn, value) => {\n  if (fn) {\n    try {\n      Object.defineProperty(fn, 'name', {value});\n    } catch (e) {\n      // eslint-disable-next-line no-empty\n    }\n    Object.defineProperty(fn, 'adapterName', {value});\n  }\n});\n\nconst renderReason = (reason) => `- ${reason}`;\n\nconst isResolvedHandle = (adapter) => utils.isFunction(adapter) || adapter === null || adapter === false;\n\nexport default {\n  getAdapter: (adapters) => {\n    adapters = utils.isArray(adapters) ? adapters : [adapters];\n\n    const {length} = adapters;\n    let nameOrAdapter;\n    let adapter;\n\n    const rejectedReasons = {};\n\n    for (let i = 0; i < length; i++) {\n      nameOrAdapter = adapters[i];\n      let id;\n\n      adapter = nameOrAdapter;\n\n      if (!isResolvedHandle(nameOrAdapter)) {\n        adapter = knownAdapters[(id = String(nameOrAdapter)).toLowerCase()];\n\n        if (adapter === undefined) {\n          throw new AxiosError(`Unknown adapter '${id}'`);\n        }\n      }\n\n      if (adapter) {\n        break;\n      }\n\n      rejectedReasons[id || '#' + i] = adapter;\n    }\n\n    if (!adapter) {\n\n      const reasons = Object.entries(rejectedReasons)\n        .map(([id, state]) => `adapter ${id} ` +\n          (state === false ? 'is not supported by the environment' : 'is not available in the build')\n        );\n\n      let s = length ?\n        (reasons.length > 1 ? 'since :\\n' + reasons.map(renderReason).join('\\n') : ' ' + renderReason(reasons[0])) :\n        'as no adapter specified';\n\n      throw new AxiosError(\n        `There is no suitable adapter to dispatch the request ` + s,\n        'ERR_NOT_SUPPORT'\n      );\n    }\n\n    return adapter;\n  },\n  adapters: knownAdapters\n}\n","'use strict';\n\nimport transformData from './transformData.js';\nimport isCancel from '../cancel/isCancel.js';\nimport defaults from '../defaults/index.js';\nimport CanceledError from '../cancel/CanceledError.js';\nimport AxiosHeaders from '../core/AxiosHeaders.js';\nimport adapters from \"../adapters/adapters.js\";\n\n/**\n * Throws a `CanceledError` if cancellation has been requested.\n *\n * @param {Object} config The config that is to be used for the request\n *\n * @returns {void}\n */\nfunction throwIfCancellationRequested(config) {\n  if (config.cancelToken) {\n    config.cancelToken.throwIfRequested();\n  }\n\n  if (config.signal && config.signal.aborted) {\n    throw new CanceledError(null, config);\n  }\n}\n\n/**\n * Dispatch a request to the server using the configured adapter.\n *\n * @param {object} config The config that is to be used for the request\n *\n * @returns {Promise} The Promise to be fulfilled\n */\nexport default function dispatchRequest(config) {\n  throwIfCancellationRequested(config);\n\n  config.headers = AxiosHeaders.from(config.headers);\n\n  // Transform request data\n  config.data = transformData.call(\n    config,\n    config.transformRequest\n  );\n\n  if (['post', 'put', 'patch'].indexOf(config.method) !== -1) {\n    config.headers.setContentType('application/x-www-form-urlencoded', false);\n  }\n\n  const adapter = adapters.getAdapter(config.adapter || defaults.adapter);\n\n  return adapter(config).then(function onAdapterResolution(response) {\n    throwIfCancellationRequested(config);\n\n    // Transform response data\n    response.data = transformData.call(\n      config,\n      config.transformResponse,\n      response\n    );\n\n    response.headers = AxiosHeaders.from(response.headers);\n\n    return response;\n  }, function onAdapterRejection(reason) {\n    if (!isCancel(reason)) {\n      throwIfCancellationRequested(config);\n\n      // Transform response data\n      if (reason && reason.response) {\n        reason.response.data = transformData.call(\n          config,\n          config.transformResponse,\n          reason.response\n        );\n        reason.response.headers = AxiosHeaders.from(reason.response.headers);\n      }\n    }\n\n    return Promise.reject(reason);\n  });\n}\n","export const VERSION = \"1.7.9\";","'use strict';\n\nimport {VERSION} from '../env/data.js';\nimport AxiosError from '../core/AxiosError.js';\n\nconst validators = {};\n\n// eslint-disable-next-line func-names\n['object', 'boolean', 'number', 'function', 'string', 'symbol'].forEach((type, i) => {\n  validators[type] = function validator(thing) {\n    return typeof thing === type || 'a' + (i < 1 ? 'n ' : ' ') + type;\n  };\n});\n\nconst deprecatedWarnings = {};\n\n/**\n * Transitional option validator\n *\n * @param {function|boolean?} validator - set to false if the transitional option has been removed\n * @param {string?} version - deprecated version / removed since version\n * @param {string?} message - some message with additional info\n *\n * @returns {function}\n */\nvalidators.transitional = function transitional(validator, version, message) {\n  function formatMessage(opt, desc) {\n    return '[Axios v' + VERSION + '] Transitional option \\'' + opt + '\\'' + desc + (message ? '. ' + message : '');\n  }\n\n  // eslint-disable-next-line func-names\n  return (value, opt, opts) => {\n    if (validator === false) {\n      throw new AxiosError(\n        formatMessage(opt, ' has been removed' + (version ? ' in ' + version : '')),\n        AxiosError.ERR_DEPRECATED\n      );\n    }\n\n    if (version && !deprecatedWarnings[opt]) {\n      deprecatedWarnings[opt] = true;\n      // eslint-disable-next-line no-console\n      console.warn(\n        formatMessage(\n          opt,\n          ' has been deprecated since v' + version + ' and will be removed in the near future'\n        )\n      );\n    }\n\n    return validator ? validator(value, opt, opts) : true;\n  };\n};\n\nvalidators.spelling = function spelling(correctSpelling) {\n  return (value, opt) => {\n    // eslint-disable-next-line no-console\n    console.warn(`${opt} is likely a misspelling of ${correctSpelling}`);\n    return true;\n  }\n};\n\n/**\n * Assert object's properties type\n *\n * @param {object} options\n * @param {object} schema\n * @param {boolean?} allowUnknown\n *\n * @returns {object}\n */\n\nfunction assertOptions(options, schema, allowUnknown) {\n  if (typeof options !== 'object') {\n    throw new AxiosError('options must be an object', AxiosError.ERR_BAD_OPTION_VALUE);\n  }\n  const keys = Object.keys(options);\n  let i = keys.length;\n  while (i-- > 0) {\n    const opt = keys[i];\n    const validator = schema[opt];\n    if (validator) {\n      const value = options[opt];\n      const result = value === undefined || validator(value, opt, options);\n      if (result !== true) {\n        throw new AxiosError('option ' + opt + ' must be ' + result, AxiosError.ERR_BAD_OPTION_VALUE);\n      }\n      continue;\n    }\n    if (allowUnknown !== true) {\n      throw new AxiosError('Unknown option ' + opt, AxiosError.ERR_BAD_OPTION);\n    }\n  }\n}\n\nexport default {\n  assertOptions,\n  validators\n};\n","'use strict';\n\nimport utils from './../utils.js';\nimport buildURL from '../helpers/buildURL.js';\nimport InterceptorManager from './InterceptorManager.js';\nimport dispatchRequest from './dispatchRequest.js';\nimport mergeConfig from './mergeConfig.js';\nimport buildFullPath from './buildFullPath.js';\nimport validator from '../helpers/validator.js';\nimport AxiosHeaders from './AxiosHeaders.js';\n\nconst validators = validator.validators;\n\n/**\n * Create a new instance of Axios\n *\n * @param {Object} instanceConfig The default config for the instance\n *\n * @return {Axios} A new instance of Axios\n */\nclass Axios {\n  constructor(instanceConfig) {\n    this.defaults = instanceConfig;\n    this.interceptors = {\n      request: new InterceptorManager(),\n      response: new InterceptorManager()\n    };\n  }\n\n  /**\n   * Dispatch a request\n   *\n   * @param {String|Object} configOrUrl The config specific for this request (merged with this.defaults)\n   * @param {?Object} config\n   *\n   * @returns {Promise} The Promise to be fulfilled\n   */\n  async request(configOrUrl, config) {\n    try {\n      return await this._request(configOrUrl, config);\n    } catch (err) {\n      if (err instanceof Error) {\n        let dummy = {};\n\n        Error.captureStackTrace ? Error.captureStackTrace(dummy) : (dummy = new Error());\n\n        // slice off the Error: ... line\n        const stack = dummy.stack ? dummy.stack.replace(/^.+\\n/, '') : '';\n        try {\n          if (!err.stack) {\n            err.stack = stack;\n            // match without the 2 top stack lines\n          } else if (stack && !String(err.stack).endsWith(stack.replace(/^.+\\n.+\\n/, ''))) {\n            err.stack += '\\n' + stack\n          }\n        } catch (e) {\n          // ignore the case where \"stack\" is an un-writable property\n        }\n      }\n\n      throw err;\n    }\n  }\n\n  _request(configOrUrl, config) {\n    /*eslint no-param-reassign:0*/\n    // Allow for axios('example/url'[, config]) a la fetch API\n    if (typeof configOrUrl === 'string') {\n      config = config || {};\n      config.url = configOrUrl;\n    } else {\n      config = configOrUrl || {};\n    }\n\n    config = mergeConfig(this.defaults, config);\n\n    const {transitional, paramsSerializer, headers} = config;\n\n    if (transitional !== undefined) {\n      validator.assertOptions(transitional, {\n        silentJSONParsing: validators.transitional(validators.boolean),\n        forcedJSONParsing: validators.transitional(validators.boolean),\n        clarifyTimeoutError: validators.transitional(validators.boolean)\n      }, false);\n    }\n\n    if (paramsSerializer != null) {\n      if (utils.isFunction(paramsSerializer)) {\n        config.paramsSerializer = {\n          serialize: paramsSerializer\n        }\n      } else {\n        validator.assertOptions(paramsSerializer, {\n          encode: validators.function,\n          serialize: validators.function\n        }, true);\n      }\n    }\n\n    validator.assertOptions(config, {\n      baseUrl: validators.spelling('baseURL'),\n      withXsrfToken: validators.spelling('withXSRFToken')\n    }, true);\n\n    // Set config.method\n    config.method = (config.method || this.defaults.method || 'get').toLowerCase();\n\n    // Flatten headers\n    let contextHeaders = headers && utils.merge(\n      headers.common,\n      headers[config.method]\n    );\n\n    headers && utils.forEach(\n      ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],\n      (method) => {\n        delete headers[method];\n      }\n    );\n\n    config.headers = AxiosHeaders.concat(contextHeaders, headers);\n\n    // filter out skipped interceptors\n    const requestInterceptorChain = [];\n    let synchronousRequestInterceptors = true;\n    this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {\n      if (typeof interceptor.runWhen === 'function' && interceptor.runWhen(config) === false) {\n        return;\n      }\n\n      synchronousRequestInterceptors = synchronousRequestInterceptors && interceptor.synchronous;\n\n      requestInterceptorChain.unshift(interceptor.fulfilled, interceptor.rejected);\n    });\n\n    const responseInterceptorChain = [];\n    this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {\n      responseInterceptorChain.push(interceptor.fulfilled, interceptor.rejected);\n    });\n\n    let promise;\n    let i = 0;\n    let len;\n\n    if (!synchronousRequestInterceptors) {\n      const chain = [dispatchRequest.bind(this), undefined];\n      chain.unshift.apply(chain, requestInterceptorChain);\n      chain.push.apply(chain, responseInterceptorChain);\n      len = chain.length;\n\n      promise = Promise.resolve(config);\n\n      while (i < len) {\n        promise = promise.then(chain[i++], chain[i++]);\n      }\n\n      return promise;\n    }\n\n    len = requestInterceptorChain.length;\n\n    let newConfig = config;\n\n    i = 0;\n\n    while (i < len) {\n      const onFulfilled = requestInterceptorChain[i++];\n      const onRejected = requestInterceptorChain[i++];\n      try {\n        newConfig = onFulfilled(newConfig);\n      } catch (error) {\n        onRejected.call(this, error);\n        break;\n      }\n    }\n\n    try {\n      promise = dispatchRequest.call(this, newConfig);\n    } catch (error) {\n      return Promise.reject(error);\n    }\n\n    i = 0;\n    len = responseInterceptorChain.length;\n\n    while (i < len) {\n      promise = promise.then(responseInterceptorChain[i++], responseInterceptorChain[i++]);\n    }\n\n    return promise;\n  }\n\n  getUri(config) {\n    config = mergeConfig(this.defaults, config);\n    const fullPath = buildFullPath(config.baseURL, config.url);\n    return buildURL(fullPath, config.params, config.paramsSerializer);\n  }\n}\n\n// Provide aliases for supported request methods\nutils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {\n  /*eslint func-names:0*/\n  Axios.prototype[method] = function(url, config) {\n    return this.request(mergeConfig(config || {}, {\n      method,\n      url,\n      data: (config || {}).data\n    }));\n  };\n});\n\nutils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {\n  /*eslint func-names:0*/\n\n  function generateHTTPMethod(isForm) {\n    return function httpMethod(url, data, config) {\n      return this.request(mergeConfig(config || {}, {\n        method,\n        headers: isForm ? {\n          'Content-Type': 'multipart/form-data'\n        } : {},\n        url,\n        data\n      }));\n    };\n  }\n\n  Axios.prototype[method] = generateHTTPMethod();\n\n  Axios.prototype[method + 'Form'] = generateHTTPMethod(true);\n});\n\nexport default Axios;\n","'use strict';\n\nimport CanceledError from './CanceledError.js';\n\n/**\n * A `CancelToken` is an object that can be used to request cancellation of an operation.\n *\n * @param {Function} executor The executor function.\n *\n * @returns {CancelToken}\n */\nclass CancelToken {\n  constructor(executor) {\n    if (typeof executor !== 'function') {\n      throw new TypeError('executor must be a function.');\n    }\n\n    let resolvePromise;\n\n    this.promise = new Promise(function promiseExecutor(resolve) {\n      resolvePromise = resolve;\n    });\n\n    const token = this;\n\n    // eslint-disable-next-line func-names\n    this.promise.then(cancel => {\n      if (!token._listeners) return;\n\n      let i = token._listeners.length;\n\n      while (i-- > 0) {\n        token._listeners[i](cancel);\n      }\n      token._listeners = null;\n    });\n\n    // eslint-disable-next-line func-names\n    this.promise.then = onfulfilled => {\n      let _resolve;\n      // eslint-disable-next-line func-names\n      const promise = new Promise(resolve => {\n        token.subscribe(resolve);\n        _resolve = resolve;\n      }).then(onfulfilled);\n\n      promise.cancel = function reject() {\n        token.unsubscribe(_resolve);\n      };\n\n      return promise;\n    };\n\n    executor(function cancel(message, config, request) {\n      if (token.reason) {\n        // Cancellation has already been requested\n        return;\n      }\n\n      token.reason = new CanceledError(message, config, request);\n      resolvePromise(token.reason);\n    });\n  }\n\n  /**\n   * Throws a `CanceledError` if cancellation has been requested.\n   */\n  throwIfRequested() {\n    if (this.reason) {\n      throw this.reason;\n    }\n  }\n\n  /**\n   * Subscribe to the cancel signal\n   */\n\n  subscribe(listener) {\n    if (this.reason) {\n      listener(this.reason);\n      return;\n    }\n\n    if (this._listeners) {\n      this._listeners.push(listener);\n    } else {\n      this._listeners = [listener];\n    }\n  }\n\n  /**\n   * Unsubscribe from the cancel signal\n   */\n\n  unsubscribe(listener) {\n    if (!this._listeners) {\n      return;\n    }\n    const index = this._listeners.indexOf(listener);\n    if (index !== -1) {\n      this._listeners.splice(index, 1);\n    }\n  }\n\n  toAbortSignal() {\n    const controller = new AbortController();\n\n    const abort = (err) => {\n      controller.abort(err);\n    };\n\n    this.subscribe(abort);\n\n    controller.signal.unsubscribe = () => this.unsubscribe(abort);\n\n    return controller.signal;\n  }\n\n  /**\n   * Returns an object that contains a new `CancelToken` and a function that, when called,\n   * cancels the `CancelToken`.\n   */\n  static source() {\n    let cancel;\n    const token = new CancelToken(function executor(c) {\n      cancel = c;\n    });\n    return {\n      token,\n      cancel\n    };\n  }\n}\n\nexport default CancelToken;\n","'use strict';\n\n/**\n * Syntactic sugar for invoking a function and expanding an array for arguments.\n *\n * Common use case would be to use `Function.prototype.apply`.\n *\n *  ```js\n *  function f(x, y, z) {}\n *  var args = [1, 2, 3];\n *  f.apply(null, args);\n *  ```\n *\n * With `spread` this example can be re-written.\n *\n *  ```js\n *  spread(function(x, y, z) {})([1, 2, 3]);\n *  ```\n *\n * @param {Function} callback\n *\n * @returns {Function}\n */\nexport default function spread(callback) {\n  return function wrap(arr) {\n    return callback.apply(null, arr);\n  };\n}\n","'use strict';\n\nimport utils from './../utils.js';\n\n/**\n * Determines whether the payload is an error thrown by Axios\n *\n * @param {*} payload The value to test\n *\n * @returns {boolean} True if the payload is an error thrown by Axios, otherwise false\n */\nexport default function isAxiosError(payload) {\n  return utils.isObject(payload) && (payload.isAxiosError === true);\n}\n","const HttpStatusCode = {\n  Continue: 100,\n  SwitchingProtocols: 101,\n  Processing: 102,\n  EarlyHints: 103,\n  Ok: 200,\n  Created: 201,\n  Accepted: 202,\n  NonAuthoritativeInformation: 203,\n  NoContent: 204,\n  ResetContent: 205,\n  PartialContent: 206,\n  MultiStatus: 207,\n  AlreadyReported: 208,\n  ImUsed: 226,\n  MultipleChoices: 300,\n  MovedPermanently: 301,\n  Found: 302,\n  SeeOther: 303,\n  NotModified: 304,\n  UseProxy: 305,\n  Unused: 306,\n  TemporaryRedirect: 307,\n  PermanentRedirect: 308,\n  BadRequest: 400,\n  Unauthorized: 401,\n  PaymentRequired: 402,\n  Forbidden: 403,\n  NotFound: 404,\n  MethodNotAllowed: 405,\n  NotAcceptable: 406,\n  ProxyAuthenticationRequired: 407,\n  RequestTimeout: 408,\n  Conflict: 409,\n  Gone: 410,\n  LengthRequired: 411,\n  PreconditionFailed: 412,\n  PayloadTooLarge: 413,\n  UriTooLong: 414,\n  UnsupportedMediaType: 415,\n  RangeNotSatisfiable: 416,\n  ExpectationFailed: 417,\n  ImATeapot: 418,\n  MisdirectedRequest: 421,\n  UnprocessableEntity: 422,\n  Locked: 423,\n  FailedDependency: 424,\n  TooEarly: 425,\n  UpgradeRequired: 426,\n  PreconditionRequired: 428,\n  TooManyRequests: 429,\n  RequestHeaderFieldsTooLarge: 431,\n  UnavailableForLegalReasons: 451,\n  InternalServerError: 500,\n  NotImplemented: 501,\n  BadGateway: 502,\n  ServiceUnavailable: 503,\n  GatewayTimeout: 504,\n  HttpVersionNotSupported: 505,\n  VariantAlsoNegotiates: 506,\n  InsufficientStorage: 507,\n  LoopDetected: 508,\n  NotExtended: 510,\n  NetworkAuthenticationRequired: 511,\n};\n\nObject.entries(HttpStatusCode).forEach(([key, value]) => {\n  HttpStatusCode[value] = key;\n});\n\nexport default HttpStatusCode;\n","'use strict';\n\nimport utils from './utils.js';\nimport bind from './helpers/bind.js';\nimport Axios from './core/Axios.js';\nimport mergeConfig from './core/mergeConfig.js';\nimport defaults from './defaults/index.js';\nimport formDataToJSON from './helpers/formDataToJSON.js';\nimport CanceledError from './cancel/CanceledError.js';\nimport CancelToken from './cancel/CancelToken.js';\nimport isCancel from './cancel/isCancel.js';\nimport {VERSION} from './env/data.js';\nimport toFormData from './helpers/toFormData.js';\nimport AxiosError from './core/AxiosError.js';\nimport spread from './helpers/spread.js';\nimport isAxiosError from './helpers/isAxiosError.js';\nimport AxiosHeaders from \"./core/AxiosHeaders.js\";\nimport adapters from './adapters/adapters.js';\nimport HttpStatusCode from './helpers/HttpStatusCode.js';\n\n/**\n * Create an instance of Axios\n *\n * @param {Object} defaultConfig The default config for the instance\n *\n * @returns {Axios} A new instance of Axios\n */\nfunction createInstance(defaultConfig) {\n  const context = new Axios(defaultConfig);\n  const instance = bind(Axios.prototype.request, context);\n\n  // Copy axios.prototype to instance\n  utils.extend(instance, Axios.prototype, context, {allOwnKeys: true});\n\n  // Copy context to instance\n  utils.extend(instance, context, null, {allOwnKeys: true});\n\n  // Factory for creating new instances\n  instance.create = function create(instanceConfig) {\n    return createInstance(mergeConfig(defaultConfig, instanceConfig));\n  };\n\n  return instance;\n}\n\n// Create the default instance to be exported\nconst axios = createInstance(defaults);\n\n// Expose Axios class to allow class inheritance\naxios.Axios = Axios;\n\n// Expose Cancel & CancelToken\naxios.CanceledError = CanceledError;\naxios.CancelToken = CancelToken;\naxios.isCancel = isCancel;\naxios.VERSION = VERSION;\naxios.toFormData = toFormData;\n\n// Expose AxiosError class\naxios.AxiosError = AxiosError;\n\n// alias for CanceledError for backward compatibility\naxios.Cancel = axios.CanceledError;\n\n// Expose all/spread\naxios.all = function all(promises) {\n  return Promise.all(promises);\n};\n\naxios.spread = spread;\n\n// Expose isAxiosError\naxios.isAxiosError = isAxiosError;\n\n// Expose mergeConfig\naxios.mergeConfig = mergeConfig;\n\naxios.AxiosHeaders = AxiosHeaders;\n\naxios.formToJSON = thing => formDataToJSON(utils.isHTMLForm(thing) ? new FormData(thing) : thing);\n\naxios.getAdapter = adapters.getAdapter;\n\naxios.HttpStatusCode = HttpStatusCode;\n\naxios.default = axios;\n\n// this module should only have a default export\nexport default 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diff --git a/backend/node_modules/axios/dist/axios.min.js.map b/backend/node_modules/axios/dist/axios.min.js.map
new file mode 100644
index 0000000..49c5dc4
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+{"version":3,"file":"axios.min.js","sources":["../lib/helpers/bind.js","../lib/utils.js","../lib/core/AxiosError.js","../lib/helpers/toFormData.js","../lib/helpers/AxiosURLSearchParams.js","../lib/helpers/buildURL.js","../lib/core/InterceptorManager.js","../lib/defaults/transitional.js","../lib/platform/browser/index.js","../lib/platform/browser/classes/URLSearchParams.js","../lib/platform/browser/classes/FormData.js","../lib/platform/browser/classes/Blob.js","../lib/platform/common/utils.js","../lib/platform/index.js","../lib/helpers/formDataToJSON.js","../lib/defaults/index.js","../lib/helpers/toURLEncodedForm.js","../lib/helpers/parseHeaders.js","../lib/core/AxiosHeaders.js","../lib/core/transformData.js","../lib/cancel/isCancel.js","../lib/cancel/CanceledError.js","../lib/core/settle.js","../lib/helpers/speedometer.js","../lib/helpers/throttle.js","../lib/helpers/progressEventReducer.js","../lib/helpers/isURLSameOrigin.js","../lib/helpers/cookies.js","../lib/core/buildFullPath.js","../lib/helpers/isAbsoluteURL.js","../lib/helpers/combineURLs.js","../lib/core/mergeConfig.js","../lib/helpers/resolveConfig.js","../lib/adapters/fetch.js","../lib/adapters/xhr.js","../lib/helpers/parseProtocol.js","../lib/helpers/composeSignals.js","../lib/helpers/trackStream.js","../lib/adapters/adapters.js","../lib/helpers/null.js","../lib/core/dispatchRequest.js","../lib/env/data.js","../lib/helpers/validator.js","../lib/core/Axios.js","../lib/cancel/CancelToken.js","../lib/helpers/HttpStatusCode.js","../lib/axios.js","../lib/helpers/spread.js","../lib/helpers/isAxiosError.js"],"sourcesContent":["'use strict';\n\nexport default function bind(fn, thisArg) {\n  return function wrap() {\n    return fn.apply(thisArg, arguments);\n  };\n}\n","'use strict';\n\nimport bind from './helpers/bind.js';\n\n// utils is a library of generic helper functions non-specific to axios\n\nconst {toString} = Object.prototype;\nconst {getPrototypeOf} = Object;\n\nconst kindOf = (cache => thing => {\n    const str = toString.call(thing);\n    return cache[str] || (cache[str] = str.slice(8, -1).toLowerCase());\n})(Object.create(null));\n\nconst kindOfTest = (type) => {\n  type = type.toLowerCase();\n  return (thing) => kindOf(thing) === type\n}\n\nconst typeOfTest = type => thing => typeof thing === type;\n\n/**\n * Determine if a value is an Array\n *\n * @param {Object} val The value to test\n *\n * @returns {boolean} True if value is an Array, otherwise false\n */\nconst {isArray} = Array;\n\n/**\n * Determine if a value is undefined\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if the value is undefined, otherwise false\n */\nconst isUndefined = typeOfTest('undefined');\n\n/**\n * Determine if a value is a Buffer\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Buffer, otherwise false\n */\nfunction isBuffer(val) {\n  return val !== null && !isUndefined(val) && val.constructor !== null && !isUndefined(val.constructor)\n    && isFunction(val.constructor.isBuffer) && val.constructor.isBuffer(val);\n}\n\n/**\n * Determine if a value is an ArrayBuffer\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is an ArrayBuffer, otherwise false\n */\nconst isArrayBuffer = kindOfTest('ArrayBuffer');\n\n\n/**\n * Determine if a value is a view on an ArrayBuffer\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false\n */\nfunction isArrayBufferView(val) {\n  let result;\n  if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) {\n    result = ArrayBuffer.isView(val);\n  } else {\n    result = (val) && (val.buffer) && (isArrayBuffer(val.buffer));\n  }\n  return result;\n}\n\n/**\n * Determine if a value is a String\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a String, otherwise false\n */\nconst isString = typeOfTest('string');\n\n/**\n * Determine if a value is a Function\n *\n * @param {*} val The value to test\n * @returns {boolean} True if value is a Function, otherwise false\n */\nconst isFunction = typeOfTest('function');\n\n/**\n * Determine if a value is a Number\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Number, otherwise false\n */\nconst isNumber = typeOfTest('number');\n\n/**\n * Determine if a value is an Object\n *\n * @param {*} thing The value to test\n *\n * @returns {boolean} True if value is an Object, otherwise false\n */\nconst isObject = (thing) => thing !== null && typeof thing === 'object';\n\n/**\n * Determine if a value is a Boolean\n *\n * @param {*} thing The value to test\n * @returns {boolean} True if value is a Boolean, otherwise false\n */\nconst isBoolean = thing => thing === true || thing === false;\n\n/**\n * Determine if a value is a plain Object\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a plain Object, otherwise false\n */\nconst isPlainObject = (val) => {\n  if (kindOf(val) !== 'object') {\n    return false;\n  }\n\n  const prototype = getPrototypeOf(val);\n  return (prototype === null || prototype === Object.prototype || Object.getPrototypeOf(prototype) === null) && !(Symbol.toStringTag in val) && !(Symbol.iterator in val);\n}\n\n/**\n * Determine if a value is a Date\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Date, otherwise false\n */\nconst isDate = kindOfTest('Date');\n\n/**\n * Determine if a value is a File\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a File, otherwise false\n */\nconst isFile = kindOfTest('File');\n\n/**\n * Determine if a value is a Blob\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Blob, otherwise false\n */\nconst isBlob = kindOfTest('Blob');\n\n/**\n * Determine if a value is a FileList\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a File, otherwise false\n */\nconst isFileList = kindOfTest('FileList');\n\n/**\n * Determine if a value is a Stream\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Stream, otherwise false\n */\nconst isStream = (val) => isObject(val) && isFunction(val.pipe);\n\n/**\n * Determine if a value is a FormData\n *\n * @param {*} thing The value to test\n *\n * @returns {boolean} True if value is an FormData, otherwise false\n */\nconst isFormData = (thing) => {\n  let kind;\n  return thing && (\n    (typeof FormData === 'function' && thing instanceof FormData) || (\n      isFunction(thing.append) && (\n        (kind = kindOf(thing)) === 'formdata' ||\n        // detect form-data instance\n        (kind === 'object' && isFunction(thing.toString) && thing.toString() === '[object FormData]')\n      )\n    )\n  )\n}\n\n/**\n * Determine if a value is a URLSearchParams object\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a URLSearchParams object, otherwise false\n */\nconst isURLSearchParams = kindOfTest('URLSearchParams');\n\nconst [isReadableStream, isRequest, isResponse, isHeaders] = ['ReadableStream', 'Request', 'Response', 'Headers'].map(kindOfTest);\n\n/**\n * Trim excess whitespace off the beginning and end of a string\n *\n * @param {String} str The String to trim\n *\n * @returns {String} The String freed of excess whitespace\n */\nconst trim = (str) => str.trim ?\n  str.trim() : str.replace(/^[\\s\\uFEFF\\xA0]+|[\\s\\uFEFF\\xA0]+$/g, '');\n\n/**\n * Iterate over an Array or an Object invoking a function for each item.\n *\n * If `obj` is an Array callback will be called passing\n * the value, index, and complete array for each item.\n *\n * If 'obj' is an Object callback will be called passing\n * the value, key, and complete object for each property.\n *\n * @param {Object|Array} obj The object to iterate\n * @param {Function} fn The callback to invoke for each item\n *\n * @param {Boolean} [allOwnKeys = false]\n * @returns {any}\n */\nfunction forEach(obj, fn, {allOwnKeys = false} = {}) {\n  // Don't bother if no value provided\n  if (obj === null || typeof obj === 'undefined') {\n    return;\n  }\n\n  let i;\n  let l;\n\n  // Force an array if not already something iterable\n  if (typeof obj !== 'object') {\n    /*eslint no-param-reassign:0*/\n    obj = [obj];\n  }\n\n  if (isArray(obj)) {\n    // Iterate over array values\n    for (i = 0, l = obj.length; i < l; i++) {\n      fn.call(null, obj[i], i, obj);\n    }\n  } else {\n    // Iterate over object keys\n    const keys = allOwnKeys ? Object.getOwnPropertyNames(obj) : Object.keys(obj);\n    const len = keys.length;\n    let key;\n\n    for (i = 0; i < len; i++) {\n      key = keys[i];\n      fn.call(null, obj[key], key, obj);\n    }\n  }\n}\n\nfunction findKey(obj, key) {\n  key = key.toLowerCase();\n  const keys = Object.keys(obj);\n  let i = keys.length;\n  let _key;\n  while (i-- > 0) {\n    _key = keys[i];\n    if (key === _key.toLowerCase()) {\n      return _key;\n    }\n  }\n  return null;\n}\n\nconst _global = (() => {\n  /*eslint no-undef:0*/\n  if (typeof globalThis !== \"undefined\") return globalThis;\n  return typeof self !== \"undefined\" ? self : (typeof window !== 'undefined' ? window : global)\n})();\n\nconst isContextDefined = (context) => !isUndefined(context) && context !== _global;\n\n/**\n * Accepts varargs expecting each argument to be an object, then\n * immutably merges the properties of each object and returns result.\n *\n * When multiple objects contain the same key the later object in\n * the arguments list will take precedence.\n *\n * Example:\n *\n * ```js\n * var result = merge({foo: 123}, {foo: 456});\n * console.log(result.foo); // outputs 456\n * ```\n *\n * @param {Object} obj1 Object to merge\n *\n * @returns {Object} Result of all merge properties\n */\nfunction merge(/* obj1, obj2, obj3, ... */) {\n  const {caseless} = isContextDefined(this) && this || {};\n  const result = {};\n  const assignValue = (val, key) => {\n    const targetKey = caseless && findKey(result, key) || key;\n    if (isPlainObject(result[targetKey]) && isPlainObject(val)) {\n      result[targetKey] = merge(result[targetKey], val);\n    } else if (isPlainObject(val)) {\n      result[targetKey] = merge({}, val);\n    } else if (isArray(val)) {\n      result[targetKey] = val.slice();\n    } else {\n      result[targetKey] = val;\n    }\n  }\n\n  for (let i = 0, l = arguments.length; i < l; i++) {\n    arguments[i] && forEach(arguments[i], assignValue);\n  }\n  return result;\n}\n\n/**\n * Extends object a by mutably adding to it the properties of object b.\n *\n * @param {Object} a The object to be extended\n * @param {Object} b The object to copy properties from\n * @param {Object} thisArg The object to bind function to\n *\n * @param {Boolean} [allOwnKeys]\n * @returns {Object} The resulting value of object a\n */\nconst extend = (a, b, thisArg, {allOwnKeys}= {}) => {\n  forEach(b, (val, key) => {\n    if (thisArg && isFunction(val)) {\n      a[key] = bind(val, thisArg);\n    } else {\n      a[key] = val;\n    }\n  }, {allOwnKeys});\n  return a;\n}\n\n/**\n * Remove byte order marker. This catches EF BB BF (the UTF-8 BOM)\n *\n * @param {string} content with BOM\n *\n * @returns {string} content value without BOM\n */\nconst stripBOM = (content) => {\n  if (content.charCodeAt(0) === 0xFEFF) {\n    content = content.slice(1);\n  }\n  return content;\n}\n\n/**\n * Inherit the prototype methods from one constructor into another\n * @param {function} constructor\n * @param {function} superConstructor\n * @param {object} [props]\n * @param {object} [descriptors]\n *\n * @returns {void}\n */\nconst inherits = (constructor, superConstructor, props, descriptors) => {\n  constructor.prototype = Object.create(superConstructor.prototype, descriptors);\n  constructor.prototype.constructor = constructor;\n  Object.defineProperty(constructor, 'super', {\n    value: superConstructor.prototype\n  });\n  props && Object.assign(constructor.prototype, props);\n}\n\n/**\n * Resolve object with deep prototype chain to a flat object\n * @param {Object} sourceObj source object\n * @param {Object} [destObj]\n * @param {Function|Boolean} [filter]\n * @param {Function} [propFilter]\n *\n * @returns {Object}\n */\nconst toFlatObject = (sourceObj, destObj, filter, propFilter) => {\n  let props;\n  let i;\n  let prop;\n  const merged = {};\n\n  destObj = destObj || {};\n  // eslint-disable-next-line no-eq-null,eqeqeq\n  if (sourceObj == null) return destObj;\n\n  do {\n    props = Object.getOwnPropertyNames(sourceObj);\n    i = props.length;\n    while (i-- > 0) {\n      prop = props[i];\n      if ((!propFilter || propFilter(prop, sourceObj, destObj)) && !merged[prop]) {\n        destObj[prop] = sourceObj[prop];\n        merged[prop] = true;\n      }\n    }\n    sourceObj = filter !== false && getPrototypeOf(sourceObj);\n  } while (sourceObj && (!filter || filter(sourceObj, destObj)) && sourceObj !== Object.prototype);\n\n  return destObj;\n}\n\n/**\n * Determines whether a string ends with the characters of a specified string\n *\n * @param {String} str\n * @param {String} searchString\n * @param {Number} [position= 0]\n *\n * @returns {boolean}\n */\nconst endsWith = (str, searchString, position) => {\n  str = String(str);\n  if (position === undefined || position > str.length) {\n    position = str.length;\n  }\n  position -= searchString.length;\n  const lastIndex = str.indexOf(searchString, position);\n  return lastIndex !== -1 && lastIndex === position;\n}\n\n\n/**\n * Returns new array from array like object or null if failed\n *\n * @param {*} [thing]\n *\n * @returns {?Array}\n */\nconst toArray = (thing) => {\n  if (!thing) return null;\n  if (isArray(thing)) return thing;\n  let i = thing.length;\n  if (!isNumber(i)) return null;\n  const arr = new Array(i);\n  while (i-- > 0) {\n    arr[i] = thing[i];\n  }\n  return arr;\n}\n\n/**\n * Checking if the Uint8Array exists and if it does, it returns a function that checks if the\n * thing passed in is an instance of Uint8Array\n *\n * @param {TypedArray}\n *\n * @returns {Array}\n */\n// eslint-disable-next-line func-names\nconst isTypedArray = (TypedArray => {\n  // eslint-disable-next-line func-names\n  return thing => {\n    return TypedArray && thing instanceof TypedArray;\n  };\n})(typeof Uint8Array !== 'undefined' && getPrototypeOf(Uint8Array));\n\n/**\n * For each entry in the object, call the function with the key and value.\n *\n * @param {Object<any, any>} obj - The object to iterate over.\n * @param {Function} fn - The function to call for each entry.\n *\n * @returns {void}\n */\nconst forEachEntry = (obj, fn) => {\n  const generator = obj && obj[Symbol.iterator];\n\n  const iterator = generator.call(obj);\n\n  let result;\n\n  while ((result = iterator.next()) && !result.done) {\n    const pair = result.value;\n    fn.call(obj, pair[0], pair[1]);\n  }\n}\n\n/**\n * It takes a regular expression and a string, and returns an array of all the matches\n *\n * @param {string} regExp - The regular expression to match against.\n * @param {string} str - The string to search.\n *\n * @returns {Array<boolean>}\n */\nconst matchAll = (regExp, str) => {\n  let matches;\n  const arr = [];\n\n  while ((matches = regExp.exec(str)) !== null) {\n    arr.push(matches);\n  }\n\n  return arr;\n}\n\n/* Checking if the kindOfTest function returns true when passed an HTMLFormElement. */\nconst isHTMLForm = kindOfTest('HTMLFormElement');\n\nconst toCamelCase = str => {\n  return str.toLowerCase().replace(/[-_\\s]([a-z\\d])(\\w*)/g,\n    function replacer(m, p1, p2) {\n      return p1.toUpperCase() + p2;\n    }\n  );\n};\n\n/* Creating a function that will check if an object has a property. */\nconst hasOwnProperty = (({hasOwnProperty}) => (obj, prop) => hasOwnProperty.call(obj, prop))(Object.prototype);\n\n/**\n * Determine if a value is a RegExp object\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a RegExp object, otherwise false\n */\nconst isRegExp = kindOfTest('RegExp');\n\nconst reduceDescriptors = (obj, reducer) => {\n  const descriptors = Object.getOwnPropertyDescriptors(obj);\n  const reducedDescriptors = {};\n\n  forEach(descriptors, (descriptor, name) => {\n    let ret;\n    if ((ret = reducer(descriptor, name, obj)) !== false) {\n      reducedDescriptors[name] = ret || descriptor;\n    }\n  });\n\n  Object.defineProperties(obj, reducedDescriptors);\n}\n\n/**\n * Makes all methods read-only\n * @param {Object} obj\n */\n\nconst freezeMethods = (obj) => {\n  reduceDescriptors(obj, (descriptor, name) => {\n    // skip restricted props in strict mode\n    if (isFunction(obj) && ['arguments', 'caller', 'callee'].indexOf(name) !== -1) {\n      return false;\n    }\n\n    const value = obj[name];\n\n    if (!isFunction(value)) return;\n\n    descriptor.enumerable = false;\n\n    if ('writable' in descriptor) {\n      descriptor.writable = false;\n      return;\n    }\n\n    if (!descriptor.set) {\n      descriptor.set = () => {\n        throw Error('Can not rewrite read-only method \\'' + name + '\\'');\n      };\n    }\n  });\n}\n\nconst toObjectSet = (arrayOrString, delimiter) => {\n  const obj = {};\n\n  const define = (arr) => {\n    arr.forEach(value => {\n      obj[value] = true;\n    });\n  }\n\n  isArray(arrayOrString) ? define(arrayOrString) : define(String(arrayOrString).split(delimiter));\n\n  return obj;\n}\n\nconst noop = () => {}\n\nconst toFiniteNumber = (value, defaultValue) => {\n  return value != null && Number.isFinite(value = +value) ? value : defaultValue;\n}\n\nconst ALPHA = 'abcdefghijklmnopqrstuvwxyz'\n\nconst DIGIT = '0123456789';\n\nconst ALPHABET = {\n  DIGIT,\n  ALPHA,\n  ALPHA_DIGIT: ALPHA + ALPHA.toUpperCase() + DIGIT\n}\n\nconst generateString = (size = 16, alphabet = ALPHABET.ALPHA_DIGIT) => {\n  let str = '';\n  const {length} = alphabet;\n  while (size--) {\n    str += alphabet[Math.random() * length|0]\n  }\n\n  return str;\n}\n\n/**\n * If the thing is a FormData object, return true, otherwise return false.\n *\n * @param {unknown} thing - The thing to check.\n *\n * @returns {boolean}\n */\nfunction isSpecCompliantForm(thing) {\n  return !!(thing && isFunction(thing.append) && thing[Symbol.toStringTag] === 'FormData' && thing[Symbol.iterator]);\n}\n\nconst toJSONObject = (obj) => {\n  const stack = new Array(10);\n\n  const visit = (source, i) => {\n\n    if (isObject(source)) {\n      if (stack.indexOf(source) >= 0) {\n        return;\n      }\n\n      if(!('toJSON' in source)) {\n        stack[i] = source;\n        const target = isArray(source) ? [] : {};\n\n        forEach(source, (value, key) => {\n          const reducedValue = visit(value, i + 1);\n          !isUndefined(reducedValue) && (target[key] = reducedValue);\n        });\n\n        stack[i] = undefined;\n\n        return target;\n      }\n    }\n\n    return source;\n  }\n\n  return visit(obj, 0);\n}\n\nconst isAsyncFn = kindOfTest('AsyncFunction');\n\nconst isThenable = (thing) =>\n  thing && (isObject(thing) || isFunction(thing)) && isFunction(thing.then) && isFunction(thing.catch);\n\n// original code\n// https://github.com/DigitalBrainJS/AxiosPromise/blob/16deab13710ec09779922131f3fa5954320f83ab/lib/utils.js#L11-L34\n\nconst _setImmediate = ((setImmediateSupported, postMessageSupported) => {\n  if (setImmediateSupported) {\n    return setImmediate;\n  }\n\n  return postMessageSupported ? ((token, callbacks) => {\n    _global.addEventListener(\"message\", ({source, data}) => {\n      if (source === _global && data === token) {\n        callbacks.length && callbacks.shift()();\n      }\n    }, false);\n\n    return (cb) => {\n      callbacks.push(cb);\n      _global.postMessage(token, \"*\");\n    }\n  })(`axios@${Math.random()}`, []) : (cb) => setTimeout(cb);\n})(\n  typeof setImmediate === 'function',\n  isFunction(_global.postMessage)\n);\n\nconst asap = typeof queueMicrotask !== 'undefined' ?\n  queueMicrotask.bind(_global) : ( typeof process !== 'undefined' && process.nextTick || _setImmediate);\n\n// *********************\n\nexport default {\n  isArray,\n  isArrayBuffer,\n  isBuffer,\n  isFormData,\n  isArrayBufferView,\n  isString,\n  isNumber,\n  isBoolean,\n  isObject,\n  isPlainObject,\n  isReadableStream,\n  isRequest,\n  isResponse,\n  isHeaders,\n  isUndefined,\n  isDate,\n  isFile,\n  isBlob,\n  isRegExp,\n  isFunction,\n  isStream,\n  isURLSearchParams,\n  isTypedArray,\n  isFileList,\n  forEach,\n  merge,\n  extend,\n  trim,\n  stripBOM,\n  inherits,\n  toFlatObject,\n  kindOf,\n  kindOfTest,\n  endsWith,\n  toArray,\n  forEachEntry,\n  matchAll,\n  isHTMLForm,\n  hasOwnProperty,\n  hasOwnProp: hasOwnProperty, // an alias to avoid ESLint no-prototype-builtins detection\n  reduceDescriptors,\n  freezeMethods,\n  toObjectSet,\n  toCamelCase,\n  noop,\n  toFiniteNumber,\n  findKey,\n  global: _global,\n  isContextDefined,\n  ALPHABET,\n  generateString,\n  isSpecCompliantForm,\n  toJSONObject,\n  isAsyncFn,\n  isThenable,\n  setImmediate: _setImmediate,\n  asap\n};\n","'use strict';\n\nimport utils from '../utils.js';\n\n/**\n * Create an Error with the specified message, config, error code, request and response.\n *\n * @param {string} message The error message.\n * @param {string} [code] The error code (for example, 'ECONNABORTED').\n * @param {Object} [config] The config.\n * @param {Object} [request] The request.\n * @param {Object} [response] The response.\n *\n * @returns {Error} The created error.\n */\nfunction AxiosError(message, code, config, request, response) {\n  Error.call(this);\n\n  if (Error.captureStackTrace) {\n    Error.captureStackTrace(this, this.constructor);\n  } else {\n    this.stack = (new Error()).stack;\n  }\n\n  this.message = message;\n  this.name = 'AxiosError';\n  code && (this.code = code);\n  config && (this.config = config);\n  request && (this.request = request);\n  if (response) {\n    this.response = response;\n    this.status = response.status ? response.status : null;\n  }\n}\n\nutils.inherits(AxiosError, Error, {\n  toJSON: function toJSON() {\n    return {\n      // Standard\n      message: this.message,\n      name: this.name,\n      // Microsoft\n      description: this.description,\n      number: this.number,\n      // Mozilla\n      fileName: this.fileName,\n      lineNumber: this.lineNumber,\n      columnNumber: this.columnNumber,\n      stack: this.stack,\n      // Axios\n      config: utils.toJSONObject(this.config),\n      code: this.code,\n      status: this.status\n    };\n  }\n});\n\nconst prototype = AxiosError.prototype;\nconst descriptors = {};\n\n[\n  'ERR_BAD_OPTION_VALUE',\n  'ERR_BAD_OPTION',\n  'ECONNABORTED',\n  'ETIMEDOUT',\n  'ERR_NETWORK',\n  'ERR_FR_TOO_MANY_REDIRECTS',\n  'ERR_DEPRECATED',\n  'ERR_BAD_RESPONSE',\n  'ERR_BAD_REQUEST',\n  'ERR_CANCELED',\n  'ERR_NOT_SUPPORT',\n  'ERR_INVALID_URL'\n// eslint-disable-next-line func-names\n].forEach(code => {\n  descriptors[code] = {value: code};\n});\n\nObject.defineProperties(AxiosError, descriptors);\nObject.defineProperty(prototype, 'isAxiosError', {value: true});\n\n// eslint-disable-next-line func-names\nAxiosError.from = (error, code, config, request, response, customProps) => {\n  const axiosError = Object.create(prototype);\n\n  utils.toFlatObject(error, axiosError, function filter(obj) {\n    return obj !== Error.prototype;\n  }, prop => {\n    return prop !== 'isAxiosError';\n  });\n\n  AxiosError.call(axiosError, error.message, code, config, request, response);\n\n  axiosError.cause = error;\n\n  axiosError.name = error.name;\n\n  customProps && Object.assign(axiosError, customProps);\n\n  return axiosError;\n};\n\nexport default AxiosError;\n","'use strict';\n\nimport utils from '../utils.js';\nimport AxiosError from '../core/AxiosError.js';\n// temporary hotfix to avoid circular references until AxiosURLSearchParams is refactored\nimport PlatformFormData from '../platform/node/classes/FormData.js';\n\n/**\n * Determines if the given thing is a array or js object.\n *\n * @param {string} thing - The object or array to be visited.\n *\n * @returns {boolean}\n */\nfunction isVisitable(thing) {\n  return utils.isPlainObject(thing) || utils.isArray(thing);\n}\n\n/**\n * It removes the brackets from the end of a string\n *\n * @param {string} key - The key of the parameter.\n *\n * @returns {string} the key without the brackets.\n */\nfunction removeBrackets(key) {\n  return utils.endsWith(key, '[]') ? key.slice(0, -2) : key;\n}\n\n/**\n * It takes a path, a key, and a boolean, and returns a string\n *\n * @param {string} path - The path to the current key.\n * @param {string} key - The key of the current object being iterated over.\n * @param {string} dots - If true, the key will be rendered with dots instead of brackets.\n *\n * @returns {string} The path to the current key.\n */\nfunction renderKey(path, key, dots) {\n  if (!path) return key;\n  return path.concat(key).map(function each(token, i) {\n    // eslint-disable-next-line no-param-reassign\n    token = removeBrackets(token);\n    return !dots && i ? '[' + token + ']' : token;\n  }).join(dots ? '.' : '');\n}\n\n/**\n * If the array is an array and none of its elements are visitable, then it's a flat array.\n *\n * @param {Array<any>} arr - The array to check\n *\n * @returns {boolean}\n */\nfunction isFlatArray(arr) {\n  return utils.isArray(arr) && !arr.some(isVisitable);\n}\n\nconst predicates = utils.toFlatObject(utils, {}, null, function filter(prop) {\n  return /^is[A-Z]/.test(prop);\n});\n\n/**\n * Convert a data object to FormData\n *\n * @param {Object} obj\n * @param {?Object} [formData]\n * @param {?Object} [options]\n * @param {Function} [options.visitor]\n * @param {Boolean} [options.metaTokens = true]\n * @param {Boolean} [options.dots = false]\n * @param {?Boolean} [options.indexes = false]\n *\n * @returns {Object}\n **/\n\n/**\n * It converts an object into a FormData object\n *\n * @param {Object<any, any>} obj - The object to convert to form data.\n * @param {string} formData - The FormData object to append to.\n * @param {Object<string, any>} options\n *\n * @returns\n */\nfunction toFormData(obj, formData, options) {\n  if (!utils.isObject(obj)) {\n    throw new TypeError('target must be an object');\n  }\n\n  // eslint-disable-next-line no-param-reassign\n  formData = formData || new (PlatformFormData || FormData)();\n\n  // eslint-disable-next-line no-param-reassign\n  options = utils.toFlatObject(options, {\n    metaTokens: true,\n    dots: false,\n    indexes: false\n  }, false, function defined(option, source) {\n    // eslint-disable-next-line no-eq-null,eqeqeq\n    return !utils.isUndefined(source[option]);\n  });\n\n  const metaTokens = options.metaTokens;\n  // eslint-disable-next-line no-use-before-define\n  const visitor = options.visitor || defaultVisitor;\n  const dots = options.dots;\n  const indexes = options.indexes;\n  const _Blob = options.Blob || typeof Blob !== 'undefined' && Blob;\n  const useBlob = _Blob && utils.isSpecCompliantForm(formData);\n\n  if (!utils.isFunction(visitor)) {\n    throw new TypeError('visitor must be a function');\n  }\n\n  function convertValue(value) {\n    if (value === null) return '';\n\n    if (utils.isDate(value)) {\n      return value.toISOString();\n    }\n\n    if (!useBlob && utils.isBlob(value)) {\n      throw new AxiosError('Blob is not supported. Use a Buffer instead.');\n    }\n\n    if (utils.isArrayBuffer(value) || utils.isTypedArray(value)) {\n      return useBlob && typeof Blob === 'function' ? new Blob([value]) : Buffer.from(value);\n    }\n\n    return value;\n  }\n\n  /**\n   * Default visitor.\n   *\n   * @param {*} value\n   * @param {String|Number} key\n   * @param {Array<String|Number>} path\n   * @this {FormData}\n   *\n   * @returns {boolean} return true to visit the each prop of the value recursively\n   */\n  function defaultVisitor(value, key, path) {\n    let arr = value;\n\n    if (value && !path && typeof value === 'object') {\n      if (utils.endsWith(key, '{}')) {\n        // eslint-disable-next-line no-param-reassign\n        key = metaTokens ? key : key.slice(0, -2);\n        // eslint-disable-next-line no-param-reassign\n        value = JSON.stringify(value);\n      } else if (\n        (utils.isArray(value) && isFlatArray(value)) ||\n        ((utils.isFileList(value) || utils.endsWith(key, '[]')) && (arr = utils.toArray(value))\n        )) {\n        // eslint-disable-next-line no-param-reassign\n        key = removeBrackets(key);\n\n        arr.forEach(function each(el, index) {\n          !(utils.isUndefined(el) || el === null) && formData.append(\n            // eslint-disable-next-line no-nested-ternary\n            indexes === true ? renderKey([key], index, dots) : (indexes === null ? key : key + '[]'),\n            convertValue(el)\n          );\n        });\n        return false;\n      }\n    }\n\n    if (isVisitable(value)) {\n      return true;\n    }\n\n    formData.append(renderKey(path, key, dots), convertValue(value));\n\n    return false;\n  }\n\n  const stack = [];\n\n  const exposedHelpers = Object.assign(predicates, {\n    defaultVisitor,\n    convertValue,\n    isVisitable\n  });\n\n  function build(value, path) {\n    if (utils.isUndefined(value)) return;\n\n    if (stack.indexOf(value) !== -1) {\n      throw Error('Circular reference detected in ' + path.join('.'));\n    }\n\n    stack.push(value);\n\n    utils.forEach(value, function each(el, key) {\n      const result = !(utils.isUndefined(el) || el === null) && visitor.call(\n        formData, el, utils.isString(key) ? key.trim() : key, path, exposedHelpers\n      );\n\n      if (result === true) {\n        build(el, path ? path.concat(key) : [key]);\n      }\n    });\n\n    stack.pop();\n  }\n\n  if (!utils.isObject(obj)) {\n    throw new TypeError('data must be an object');\n  }\n\n  build(obj);\n\n  return formData;\n}\n\nexport default toFormData;\n","'use strict';\n\nimport toFormData from './toFormData.js';\n\n/**\n * It encodes a string by replacing all characters that are not in the unreserved set with\n * their percent-encoded equivalents\n *\n * @param {string} str - The string to encode.\n *\n * @returns {string} The encoded string.\n */\nfunction encode(str) {\n  const charMap = {\n    '!': '%21',\n    \"'\": '%27',\n    '(': '%28',\n    ')': '%29',\n    '~': '%7E',\n    '%20': '+',\n    '%00': '\\x00'\n  };\n  return encodeURIComponent(str).replace(/[!'()~]|%20|%00/g, function replacer(match) {\n    return charMap[match];\n  });\n}\n\n/**\n * It takes a params object and converts it to a FormData object\n *\n * @param {Object<string, any>} params - The parameters to be converted to a FormData object.\n * @param {Object<string, any>} options - The options object passed to the Axios constructor.\n *\n * @returns {void}\n */\nfunction AxiosURLSearchParams(params, options) {\n  this._pairs = [];\n\n  params && toFormData(params, this, options);\n}\n\nconst prototype = AxiosURLSearchParams.prototype;\n\nprototype.append = function append(name, value) {\n  this._pairs.push([name, value]);\n};\n\nprototype.toString = function toString(encoder) {\n  const _encode = encoder ? function(value) {\n    return encoder.call(this, value, encode);\n  } : encode;\n\n  return this._pairs.map(function each(pair) {\n    return _encode(pair[0]) + '=' + _encode(pair[1]);\n  }, '').join('&');\n};\n\nexport default AxiosURLSearchParams;\n","'use strict';\n\nimport utils from '../utils.js';\nimport AxiosURLSearchParams from '../helpers/AxiosURLSearchParams.js';\n\n/**\n * It replaces all instances of the characters `:`, `$`, `,`, `+`, `[`, and `]` with their\n * URI encoded counterparts\n *\n * @param {string} val The value to be encoded.\n *\n * @returns {string} The encoded value.\n */\nfunction encode(val) {\n  return encodeURIComponent(val).\n    replace(/%3A/gi, ':').\n    replace(/%24/g, '$').\n    replace(/%2C/gi, ',').\n    replace(/%20/g, '+').\n    replace(/%5B/gi, '[').\n    replace(/%5D/gi, ']');\n}\n\n/**\n * Build a URL by appending params to the end\n *\n * @param {string} url The base of the url (e.g., http://www.google.com)\n * @param {object} [params] The params to be appended\n * @param {?(object|Function)} options\n *\n * @returns {string} The formatted url\n */\nexport default function buildURL(url, params, options) {\n  /*eslint no-param-reassign:0*/\n  if (!params) {\n    return url;\n  }\n  \n  const _encode = options && options.encode || encode;\n\n  if (utils.isFunction(options)) {\n    options = {\n      serialize: options\n    };\n  } \n\n  const serializeFn = options && options.serialize;\n\n  let serializedParams;\n\n  if (serializeFn) {\n    serializedParams = serializeFn(params, options);\n  } else {\n    serializedParams = utils.isURLSearchParams(params) ?\n      params.toString() :\n      new AxiosURLSearchParams(params, options).toString(_encode);\n  }\n\n  if (serializedParams) {\n    const hashmarkIndex = url.indexOf(\"#\");\n\n    if (hashmarkIndex !== -1) {\n      url = url.slice(0, hashmarkIndex);\n    }\n    url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;\n  }\n\n  return url;\n}\n","'use strict';\n\nimport utils from './../utils.js';\n\nclass InterceptorManager {\n  constructor() {\n    this.handlers = [];\n  }\n\n  /**\n   * Add a new interceptor to the stack\n   *\n   * @param {Function} fulfilled The function to handle `then` for a `Promise`\n   * @param {Function} rejected The function to handle `reject` for a `Promise`\n   *\n   * @return {Number} An ID used to remove interceptor later\n   */\n  use(fulfilled, rejected, options) {\n    this.handlers.push({\n      fulfilled,\n      rejected,\n      synchronous: options ? options.synchronous : false,\n      runWhen: options ? options.runWhen : null\n    });\n    return this.handlers.length - 1;\n  }\n\n  /**\n   * Remove an interceptor from the stack\n   *\n   * @param {Number} id The ID that was returned by `use`\n   *\n   * @returns {Boolean} `true` if the interceptor was removed, `false` otherwise\n   */\n  eject(id) {\n    if (this.handlers[id]) {\n      this.handlers[id] = null;\n    }\n  }\n\n  /**\n   * Clear all interceptors from the stack\n   *\n   * @returns {void}\n   */\n  clear() {\n    if (this.handlers) {\n      this.handlers = [];\n    }\n  }\n\n  /**\n   * Iterate over all the registered interceptors\n   *\n   * This method is particularly useful for skipping over any\n   * interceptors that may have become `null` calling `eject`.\n   *\n   * @param {Function} fn The function to call for each interceptor\n   *\n   * @returns {void}\n   */\n  forEach(fn) {\n    utils.forEach(this.handlers, function forEachHandler(h) {\n      if (h !== null) {\n        fn(h);\n      }\n    });\n  }\n}\n\nexport default InterceptorManager;\n","'use strict';\n\nexport default {\n  silentJSONParsing: true,\n  forcedJSONParsing: true,\n  clarifyTimeoutError: false\n};\n","import URLSearchParams from './classes/URLSearchParams.js'\nimport FormData from './classes/FormData.js'\nimport Blob from './classes/Blob.js'\n\nexport default {\n  isBrowser: true,\n  classes: {\n    URLSearchParams,\n    FormData,\n    Blob\n  },\n  protocols: ['http', 'https', 'file', 'blob', 'url', 'data']\n};\n","'use strict';\n\nimport AxiosURLSearchParams from '../../../helpers/AxiosURLSearchParams.js';\nexport default typeof URLSearchParams !== 'undefined' ? URLSearchParams : AxiosURLSearchParams;\n","'use strict';\n\nexport default typeof FormData !== 'undefined' ? FormData : null;\n","'use strict'\n\nexport default typeof Blob !== 'undefined' ? Blob : null\n","const hasBrowserEnv = typeof window !== 'undefined' && typeof document !== 'undefined';\n\nconst _navigator = typeof navigator === 'object' && navigator || undefined;\n\n/**\n * Determine if we're running in a standard browser environment\n *\n * This allows axios to run in a web worker, and react-native.\n * Both environments support XMLHttpRequest, but not fully standard globals.\n *\n * web workers:\n *  typeof window -> undefined\n *  typeof document -> undefined\n *\n * react-native:\n *  navigator.product -> 'ReactNative'\n * nativescript\n *  navigator.product -> 'NativeScript' or 'NS'\n *\n * @returns {boolean}\n */\nconst hasStandardBrowserEnv = hasBrowserEnv &&\n  (!_navigator || ['ReactNative', 'NativeScript', 'NS'].indexOf(_navigator.product) < 0);\n\n/**\n * Determine if we're running in a standard browser webWorker environment\n *\n * Although the `isStandardBrowserEnv` method indicates that\n * `allows axios to run in a web worker`, the WebWorker will still be\n * filtered out due to its judgment standard\n * `typeof window !== 'undefined' && typeof document !== 'undefined'`.\n * This leads to a problem when axios post `FormData` in webWorker\n */\nconst hasStandardBrowserWebWorkerEnv = (() => {\n  return (\n    typeof WorkerGlobalScope !== 'undefined' &&\n    // eslint-disable-next-line no-undef\n    self instanceof WorkerGlobalScope &&\n    typeof self.importScripts === 'function'\n  );\n})();\n\nconst origin = hasBrowserEnv && window.location.href || 'http://localhost';\n\nexport {\n  hasBrowserEnv,\n  hasStandardBrowserWebWorkerEnv,\n  hasStandardBrowserEnv,\n  _navigator as navigator,\n  origin\n}\n","import platform from './node/index.js';\nimport * as utils from './common/utils.js';\n\nexport default {\n  ...utils,\n  ...platform\n}\n","'use strict';\n\nimport utils from '../utils.js';\n\n/**\n * It takes a string like `foo[x][y][z]` and returns an array like `['foo', 'x', 'y', 'z']\n *\n * @param {string} name - The name of the property to get.\n *\n * @returns An array of strings.\n */\nfunction parsePropPath(name) {\n  // foo[x][y][z]\n  // foo.x.y.z\n  // foo-x-y-z\n  // foo x y z\n  return utils.matchAll(/\\w+|\\[(\\w*)]/g, name).map(match => {\n    return match[0] === '[]' ? '' : match[1] || match[0];\n  });\n}\n\n/**\n * Convert an array to an object.\n *\n * @param {Array<any>} arr - The array to convert to an object.\n *\n * @returns An object with the same keys and values as the array.\n */\nfunction arrayToObject(arr) {\n  const obj = {};\n  const keys = Object.keys(arr);\n  let i;\n  const len = keys.length;\n  let key;\n  for (i = 0; i < len; i++) {\n    key = keys[i];\n    obj[key] = arr[key];\n  }\n  return obj;\n}\n\n/**\n * It takes a FormData object and returns a JavaScript object\n *\n * @param {string} formData The FormData object to convert to JSON.\n *\n * @returns {Object<string, any> | null} The converted object.\n */\nfunction formDataToJSON(formData) {\n  function buildPath(path, value, target, index) {\n    let name = path[index++];\n\n    if (name === '__proto__') return true;\n\n    const isNumericKey = Number.isFinite(+name);\n    const isLast = index >= path.length;\n    name = !name && utils.isArray(target) ? target.length : name;\n\n    if (isLast) {\n      if (utils.hasOwnProp(target, name)) {\n        target[name] = [target[name], value];\n      } else {\n        target[name] = value;\n      }\n\n      return !isNumericKey;\n    }\n\n    if (!target[name] || !utils.isObject(target[name])) {\n      target[name] = [];\n    }\n\n    const result = buildPath(path, value, target[name], index);\n\n    if (result && utils.isArray(target[name])) {\n      target[name] = arrayToObject(target[name]);\n    }\n\n    return !isNumericKey;\n  }\n\n  if (utils.isFormData(formData) && utils.isFunction(formData.entries)) {\n    const obj = {};\n\n    utils.forEachEntry(formData, (name, value) => {\n      buildPath(parsePropPath(name), value, obj, 0);\n    });\n\n    return obj;\n  }\n\n  return null;\n}\n\nexport default formDataToJSON;\n","'use strict';\n\nimport utils from '../utils.js';\nimport AxiosError from '../core/AxiosError.js';\nimport transitionalDefaults from './transitional.js';\nimport toFormData from '../helpers/toFormData.js';\nimport toURLEncodedForm from '../helpers/toURLEncodedForm.js';\nimport platform from '../platform/index.js';\nimport formDataToJSON from '../helpers/formDataToJSON.js';\n\n/**\n * It takes a string, tries to parse it, and if it fails, it returns the stringified version\n * of the input\n *\n * @param {any} rawValue - The value to be stringified.\n * @param {Function} parser - A function that parses a string into a JavaScript object.\n * @param {Function} encoder - A function that takes a value and returns a string.\n *\n * @returns {string} A stringified version of the rawValue.\n */\nfunction stringifySafely(rawValue, parser, encoder) {\n  if (utils.isString(rawValue)) {\n    try {\n      (parser || JSON.parse)(rawValue);\n      return utils.trim(rawValue);\n    } catch (e) {\n      if (e.name !== 'SyntaxError') {\n        throw e;\n      }\n    }\n  }\n\n  return (encoder || JSON.stringify)(rawValue);\n}\n\nconst defaults = {\n\n  transitional: transitionalDefaults,\n\n  adapter: ['xhr', 'http', 'fetch'],\n\n  transformRequest: [function transformRequest(data, headers) {\n    const contentType = headers.getContentType() || '';\n    const hasJSONContentType = contentType.indexOf('application/json') > -1;\n    const isObjectPayload = utils.isObject(data);\n\n    if (isObjectPayload && utils.isHTMLForm(data)) {\n      data = new FormData(data);\n    }\n\n    const isFormData = utils.isFormData(data);\n\n    if (isFormData) {\n      return hasJSONContentType ? JSON.stringify(formDataToJSON(data)) : data;\n    }\n\n    if (utils.isArrayBuffer(data) ||\n      utils.isBuffer(data) ||\n      utils.isStream(data) ||\n      utils.isFile(data) ||\n      utils.isBlob(data) ||\n      utils.isReadableStream(data)\n    ) {\n      return data;\n    }\n    if (utils.isArrayBufferView(data)) {\n      return data.buffer;\n    }\n    if (utils.isURLSearchParams(data)) {\n      headers.setContentType('application/x-www-form-urlencoded;charset=utf-8', false);\n      return data.toString();\n    }\n\n    let isFileList;\n\n    if (isObjectPayload) {\n      if (contentType.indexOf('application/x-www-form-urlencoded') > -1) {\n        return toURLEncodedForm(data, this.formSerializer).toString();\n      }\n\n      if ((isFileList = utils.isFileList(data)) || contentType.indexOf('multipart/form-data') > -1) {\n        const _FormData = this.env && this.env.FormData;\n\n        return toFormData(\n          isFileList ? {'files[]': data} : data,\n          _FormData && new _FormData(),\n          this.formSerializer\n        );\n      }\n    }\n\n    if (isObjectPayload || hasJSONContentType ) {\n      headers.setContentType('application/json', false);\n      return stringifySafely(data);\n    }\n\n    return data;\n  }],\n\n  transformResponse: [function transformResponse(data) {\n    const transitional = this.transitional || defaults.transitional;\n    const forcedJSONParsing = transitional && transitional.forcedJSONParsing;\n    const JSONRequested = this.responseType === 'json';\n\n    if (utils.isResponse(data) || utils.isReadableStream(data)) {\n      return data;\n    }\n\n    if (data && utils.isString(data) && ((forcedJSONParsing && !this.responseType) || JSONRequested)) {\n      const silentJSONParsing = transitional && transitional.silentJSONParsing;\n      const strictJSONParsing = !silentJSONParsing && JSONRequested;\n\n      try {\n        return JSON.parse(data);\n      } catch (e) {\n        if (strictJSONParsing) {\n          if (e.name === 'SyntaxError') {\n            throw AxiosError.from(e, AxiosError.ERR_BAD_RESPONSE, this, null, this.response);\n          }\n          throw e;\n        }\n      }\n    }\n\n    return data;\n  }],\n\n  /**\n   * A timeout in milliseconds to abort a request. If set to 0 (default) a\n   * timeout is not created.\n   */\n  timeout: 0,\n\n  xsrfCookieName: 'XSRF-TOKEN',\n  xsrfHeaderName: 'X-XSRF-TOKEN',\n\n  maxContentLength: -1,\n  maxBodyLength: -1,\n\n  env: {\n    FormData: platform.classes.FormData,\n    Blob: platform.classes.Blob\n  },\n\n  validateStatus: function validateStatus(status) {\n    return status >= 200 && status < 300;\n  },\n\n  headers: {\n    common: {\n      'Accept': 'application/json, text/plain, */*',\n      'Content-Type': undefined\n    }\n  }\n};\n\nutils.forEach(['delete', 'get', 'head', 'post', 'put', 'patch'], (method) => {\n  defaults.headers[method] = {};\n});\n\nexport default defaults;\n","'use strict';\n\nimport utils from '../utils.js';\nimport toFormData from './toFormData.js';\nimport platform from '../platform/index.js';\n\nexport default function toURLEncodedForm(data, options) {\n  return toFormData(data, new platform.classes.URLSearchParams(), Object.assign({\n    visitor: function(value, key, path, helpers) {\n      if (platform.isNode && utils.isBuffer(value)) {\n        this.append(key, value.toString('base64'));\n        return false;\n      }\n\n      return helpers.defaultVisitor.apply(this, arguments);\n    }\n  }, options));\n}\n","'use strict';\n\nimport utils from './../utils.js';\n\n// RawAxiosHeaders whose duplicates are ignored by node\n// c.f. https://nodejs.org/api/http.html#http_message_headers\nconst ignoreDuplicateOf = utils.toObjectSet([\n  'age', 'authorization', 'content-length', 'content-type', 'etag',\n  'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since',\n  'last-modified', 'location', 'max-forwards', 'proxy-authorization',\n  'referer', 'retry-after', 'user-agent'\n]);\n\n/**\n * Parse headers into an object\n *\n * ```\n * Date: Wed, 27 Aug 2014 08:58:49 GMT\n * Content-Type: application/json\n * Connection: keep-alive\n * Transfer-Encoding: chunked\n * ```\n *\n * @param {String} rawHeaders Headers needing to be parsed\n *\n * @returns {Object} Headers parsed into an object\n */\nexport default rawHeaders => {\n  const parsed = {};\n  let key;\n  let val;\n  let i;\n\n  rawHeaders && rawHeaders.split('\\n').forEach(function parser(line) {\n    i = line.indexOf(':');\n    key = line.substring(0, i).trim().toLowerCase();\n    val = line.substring(i + 1).trim();\n\n    if (!key || (parsed[key] && ignoreDuplicateOf[key])) {\n      return;\n    }\n\n    if (key === 'set-cookie') {\n      if (parsed[key]) {\n        parsed[key].push(val);\n      } else {\n        parsed[key] = [val];\n      }\n    } else {\n      parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;\n    }\n  });\n\n  return parsed;\n};\n","'use strict';\n\nimport utils from '../utils.js';\nimport parseHeaders from '../helpers/parseHeaders.js';\n\nconst $internals = Symbol('internals');\n\nfunction normalizeHeader(header) {\n  return header && String(header).trim().toLowerCase();\n}\n\nfunction normalizeValue(value) {\n  if (value === false || value == null) {\n    return value;\n  }\n\n  return utils.isArray(value) ? value.map(normalizeValue) : String(value);\n}\n\nfunction parseTokens(str) {\n  const tokens = Object.create(null);\n  const tokensRE = /([^\\s,;=]+)\\s*(?:=\\s*([^,;]+))?/g;\n  let match;\n\n  while ((match = tokensRE.exec(str))) {\n    tokens[match[1]] = match[2];\n  }\n\n  return tokens;\n}\n\nconst isValidHeaderName = (str) => /^[-_a-zA-Z0-9^`|~,!#$%&'*+.]+$/.test(str.trim());\n\nfunction matchHeaderValue(context, value, header, filter, isHeaderNameFilter) {\n  if (utils.isFunction(filter)) {\n    return filter.call(this, value, header);\n  }\n\n  if (isHeaderNameFilter) {\n    value = header;\n  }\n\n  if (!utils.isString(value)) return;\n\n  if (utils.isString(filter)) {\n    return value.indexOf(filter) !== -1;\n  }\n\n  if (utils.isRegExp(filter)) {\n    return filter.test(value);\n  }\n}\n\nfunction formatHeader(header) {\n  return header.trim()\n    .toLowerCase().replace(/([a-z\\d])(\\w*)/g, (w, char, str) => {\n      return char.toUpperCase() + str;\n    });\n}\n\nfunction buildAccessors(obj, header) {\n  const accessorName = utils.toCamelCase(' ' + header);\n\n  ['get', 'set', 'has'].forEach(methodName => {\n    Object.defineProperty(obj, methodName + accessorName, {\n      value: function(arg1, arg2, arg3) {\n        return this[methodName].call(this, header, arg1, arg2, arg3);\n      },\n      configurable: true\n    });\n  });\n}\n\nclass AxiosHeaders {\n  constructor(headers) {\n    headers && this.set(headers);\n  }\n\n  set(header, valueOrRewrite, rewrite) {\n    const self = this;\n\n    function setHeader(_value, _header, _rewrite) {\n      const lHeader = normalizeHeader(_header);\n\n      if (!lHeader) {\n        throw new Error('header name must be a non-empty string');\n      }\n\n      const key = utils.findKey(self, lHeader);\n\n      if(!key || self[key] === undefined || _rewrite === true || (_rewrite === undefined && self[key] !== false)) {\n        self[key || _header] = normalizeValue(_value);\n      }\n    }\n\n    const setHeaders = (headers, _rewrite) =>\n      utils.forEach(headers, (_value, _header) => setHeader(_value, _header, _rewrite));\n\n    if (utils.isPlainObject(header) || header instanceof this.constructor) {\n      setHeaders(header, valueOrRewrite)\n    } else if(utils.isString(header) && (header = header.trim()) && !isValidHeaderName(header)) {\n      setHeaders(parseHeaders(header), valueOrRewrite);\n    } else if (utils.isHeaders(header)) {\n      for (const [key, value] of header.entries()) {\n        setHeader(value, key, rewrite);\n      }\n    } else {\n      header != null && setHeader(valueOrRewrite, header, rewrite);\n    }\n\n    return this;\n  }\n\n  get(header, parser) {\n    header = normalizeHeader(header);\n\n    if (header) {\n      const key = utils.findKey(this, header);\n\n      if (key) {\n        const value = this[key];\n\n        if (!parser) {\n          return value;\n        }\n\n        if (parser === true) {\n          return parseTokens(value);\n        }\n\n        if (utils.isFunction(parser)) {\n          return parser.call(this, value, key);\n        }\n\n        if (utils.isRegExp(parser)) {\n          return parser.exec(value);\n        }\n\n        throw new TypeError('parser must be boolean|regexp|function');\n      }\n    }\n  }\n\n  has(header, matcher) {\n    header = normalizeHeader(header);\n\n    if (header) {\n      const key = utils.findKey(this, header);\n\n      return !!(key && this[key] !== undefined && (!matcher || matchHeaderValue(this, this[key], key, matcher)));\n    }\n\n    return false;\n  }\n\n  delete(header, matcher) {\n    const self = this;\n    let deleted = false;\n\n    function deleteHeader(_header) {\n      _header = normalizeHeader(_header);\n\n      if (_header) {\n        const key = utils.findKey(self, _header);\n\n        if (key && (!matcher || matchHeaderValue(self, self[key], key, matcher))) {\n          delete self[key];\n\n          deleted = true;\n        }\n      }\n    }\n\n    if (utils.isArray(header)) {\n      header.forEach(deleteHeader);\n    } else {\n      deleteHeader(header);\n    }\n\n    return deleted;\n  }\n\n  clear(matcher) {\n    const keys = Object.keys(this);\n    let i = keys.length;\n    let deleted = false;\n\n    while (i--) {\n      const key = keys[i];\n      if(!matcher || matchHeaderValue(this, this[key], key, matcher, true)) {\n        delete this[key];\n        deleted = true;\n      }\n    }\n\n    return deleted;\n  }\n\n  normalize(format) {\n    const self = this;\n    const headers = {};\n\n    utils.forEach(this, (value, header) => {\n      const key = utils.findKey(headers, header);\n\n      if (key) {\n        self[key] = normalizeValue(value);\n        delete self[header];\n        return;\n      }\n\n      const normalized = format ? formatHeader(header) : String(header).trim();\n\n      if (normalized !== header) {\n        delete self[header];\n      }\n\n      self[normalized] = normalizeValue(value);\n\n      headers[normalized] = true;\n    });\n\n    return this;\n  }\n\n  concat(...targets) {\n    return this.constructor.concat(this, ...targets);\n  }\n\n  toJSON(asStrings) {\n    const obj = Object.create(null);\n\n    utils.forEach(this, (value, header) => {\n      value != null && value !== false && (obj[header] = asStrings && utils.isArray(value) ? value.join(', ') : value);\n    });\n\n    return obj;\n  }\n\n  [Symbol.iterator]() {\n    return Object.entries(this.toJSON())[Symbol.iterator]();\n  }\n\n  toString() {\n    return Object.entries(this.toJSON()).map(([header, value]) => header + ': ' + value).join('\\n');\n  }\n\n  get [Symbol.toStringTag]() {\n    return 'AxiosHeaders';\n  }\n\n  static from(thing) {\n    return thing instanceof this ? thing : new this(thing);\n  }\n\n  static concat(first, ...targets) {\n    const computed = new this(first);\n\n    targets.forEach((target) => computed.set(target));\n\n    return computed;\n  }\n\n  static accessor(header) {\n    const internals = this[$internals] = (this[$internals] = {\n      accessors: {}\n    });\n\n    const accessors = internals.accessors;\n    const prototype = this.prototype;\n\n    function defineAccessor(_header) {\n      const lHeader = normalizeHeader(_header);\n\n      if (!accessors[lHeader]) {\n        buildAccessors(prototype, _header);\n        accessors[lHeader] = true;\n      }\n    }\n\n    utils.isArray(header) ? header.forEach(defineAccessor) : defineAccessor(header);\n\n    return this;\n  }\n}\n\nAxiosHeaders.accessor(['Content-Type', 'Content-Length', 'Accept', 'Accept-Encoding', 'User-Agent', 'Authorization']);\n\n// reserved names hotfix\nutils.reduceDescriptors(AxiosHeaders.prototype, ({value}, key) => {\n  let mapped = key[0].toUpperCase() + key.slice(1); // map `set` => `Set`\n  return {\n    get: () => value,\n    set(headerValue) {\n      this[mapped] = headerValue;\n    }\n  }\n});\n\nutils.freezeMethods(AxiosHeaders);\n\nexport default AxiosHeaders;\n","'use strict';\n\nimport utils from './../utils.js';\nimport defaults from '../defaults/index.js';\nimport AxiosHeaders from '../core/AxiosHeaders.js';\n\n/**\n * Transform the data for a request or a response\n *\n * @param {Array|Function} fns A single function or Array of functions\n * @param {?Object} response The response object\n *\n * @returns {*} The resulting transformed data\n */\nexport default function transformData(fns, response) {\n  const config = this || defaults;\n  const context = response || config;\n  const headers = AxiosHeaders.from(context.headers);\n  let data = context.data;\n\n  utils.forEach(fns, function transform(fn) {\n    data = fn.call(config, data, headers.normalize(), response ? response.status : undefined);\n  });\n\n  headers.normalize();\n\n  return data;\n}\n","'use strict';\n\nexport default function isCancel(value) {\n  return !!(value && value.__CANCEL__);\n}\n","'use strict';\n\nimport AxiosError from '../core/AxiosError.js';\nimport utils from '../utils.js';\n\n/**\n * A `CanceledError` is an object that is thrown when an operation is canceled.\n *\n * @param {string=} message The message.\n * @param {Object=} config The config.\n * @param {Object=} request The request.\n *\n * @returns {CanceledError} The created error.\n */\nfunction CanceledError(message, config, request) {\n  // eslint-disable-next-line no-eq-null,eqeqeq\n  AxiosError.call(this, message == null ? 'canceled' : message, AxiosError.ERR_CANCELED, config, request);\n  this.name = 'CanceledError';\n}\n\nutils.inherits(CanceledError, AxiosError, {\n  __CANCEL__: true\n});\n\nexport default CanceledError;\n","'use strict';\n\nimport AxiosError from './AxiosError.js';\n\n/**\n * Resolve or reject a Promise based on response status.\n *\n * @param {Function} resolve A function that resolves the promise.\n * @param {Function} reject A function that rejects the promise.\n * @param {object} response The response.\n *\n * @returns {object} The response.\n */\nexport default function settle(resolve, reject, response) {\n  const validateStatus = response.config.validateStatus;\n  if (!response.status || !validateStatus || validateStatus(response.status)) {\n    resolve(response);\n  } else {\n    reject(new AxiosError(\n      'Request failed with status code ' + response.status,\n      [AxiosError.ERR_BAD_REQUEST, AxiosError.ERR_BAD_RESPONSE][Math.floor(response.status / 100) - 4],\n      response.config,\n      response.request,\n      response\n    ));\n  }\n}\n","'use strict';\n\n/**\n * Calculate data maxRate\n * @param {Number} [samplesCount= 10]\n * @param {Number} [min= 1000]\n * @returns {Function}\n */\nfunction speedometer(samplesCount, min) {\n  samplesCount = samplesCount || 10;\n  const bytes = new Array(samplesCount);\n  const timestamps = new Array(samplesCount);\n  let head = 0;\n  let tail = 0;\n  let firstSampleTS;\n\n  min = min !== undefined ? min : 1000;\n\n  return function push(chunkLength) {\n    const now = Date.now();\n\n    const startedAt = timestamps[tail];\n\n    if (!firstSampleTS) {\n      firstSampleTS = now;\n    }\n\n    bytes[head] = chunkLength;\n    timestamps[head] = now;\n\n    let i = tail;\n    let bytesCount = 0;\n\n    while (i !== head) {\n      bytesCount += bytes[i++];\n      i = i % samplesCount;\n    }\n\n    head = (head + 1) % samplesCount;\n\n    if (head === tail) {\n      tail = (tail + 1) % samplesCount;\n    }\n\n    if (now - firstSampleTS < min) {\n      return;\n    }\n\n    const passed = startedAt && now - startedAt;\n\n    return passed ? Math.round(bytesCount * 1000 / passed) : undefined;\n  };\n}\n\nexport default speedometer;\n","/**\n * Throttle decorator\n * @param {Function} fn\n * @param {Number} freq\n * @return {Function}\n */\nfunction throttle(fn, freq) {\n  let timestamp = 0;\n  let threshold = 1000 / freq;\n  let lastArgs;\n  let timer;\n\n  const invoke = (args, now = Date.now()) => {\n    timestamp = now;\n    lastArgs = null;\n    if (timer) {\n      clearTimeout(timer);\n      timer = null;\n    }\n    fn.apply(null, args);\n  }\n\n  const throttled = (...args) => {\n    const now = Date.now();\n    const passed = now - timestamp;\n    if ( passed >= threshold) {\n      invoke(args, now);\n    } else {\n      lastArgs = args;\n      if (!timer) {\n        timer = setTimeout(() => {\n          timer = null;\n          invoke(lastArgs)\n        }, threshold - passed);\n      }\n    }\n  }\n\n  const flush = () => lastArgs && invoke(lastArgs);\n\n  return [throttled, flush];\n}\n\nexport default throttle;\n","import speedometer from \"./speedometer.js\";\nimport throttle from \"./throttle.js\";\nimport utils from \"../utils.js\";\n\nexport const progressEventReducer = (listener, isDownloadStream, freq = 3) => {\n  let bytesNotified = 0;\n  const _speedometer = speedometer(50, 250);\n\n  return throttle(e => {\n    const loaded = e.loaded;\n    const total = e.lengthComputable ? e.total : undefined;\n    const progressBytes = loaded - bytesNotified;\n    const rate = _speedometer(progressBytes);\n    const inRange = loaded <= total;\n\n    bytesNotified = loaded;\n\n    const data = {\n      loaded,\n      total,\n      progress: total ? (loaded / total) : undefined,\n      bytes: progressBytes,\n      rate: rate ? rate : undefined,\n      estimated: rate && total && inRange ? (total - loaded) / rate : undefined,\n      event: e,\n      lengthComputable: total != null,\n      [isDownloadStream ? 'download' : 'upload']: true\n    };\n\n    listener(data);\n  }, freq);\n}\n\nexport const progressEventDecorator = (total, throttled) => {\n  const lengthComputable = total != null;\n\n  return [(loaded) => throttled[0]({\n    lengthComputable,\n    total,\n    loaded\n  }), throttled[1]];\n}\n\nexport const asyncDecorator = (fn) => (...args) => utils.asap(() => fn(...args));\n","import platform from '../platform/index.js';\n\nexport default platform.hasStandardBrowserEnv ? ((origin, isMSIE) => (url) => {\n  url = new URL(url, platform.origin);\n\n  return (\n    origin.protocol === url.protocol &&\n    origin.host === url.host &&\n    (isMSIE || origin.port === url.port)\n  );\n})(\n  new URL(platform.origin),\n  platform.navigator && /(msie|trident)/i.test(platform.navigator.userAgent)\n) : () => true;\n","import utils from './../utils.js';\nimport platform from '../platform/index.js';\n\nexport default platform.hasStandardBrowserEnv ?\n\n  // Standard browser envs support document.cookie\n  {\n    write(name, value, expires, path, domain, secure) {\n      const cookie = [name + '=' + encodeURIComponent(value)];\n\n      utils.isNumber(expires) && cookie.push('expires=' + new Date(expires).toGMTString());\n\n      utils.isString(path) && cookie.push('path=' + path);\n\n      utils.isString(domain) && cookie.push('domain=' + domain);\n\n      secure === true && cookie.push('secure');\n\n      document.cookie = cookie.join('; ');\n    },\n\n    read(name) {\n      const match = document.cookie.match(new RegExp('(^|;\\\\s*)(' + name + ')=([^;]*)'));\n      return (match ? decodeURIComponent(match[3]) : null);\n    },\n\n    remove(name) {\n      this.write(name, '', Date.now() - 86400000);\n    }\n  }\n\n  :\n\n  // Non-standard browser env (web workers, react-native) lack needed support.\n  {\n    write() {},\n    read() {\n      return null;\n    },\n    remove() {}\n  };\n\n","'use strict';\n\nimport isAbsoluteURL from '../helpers/isAbsoluteURL.js';\nimport combineURLs from '../helpers/combineURLs.js';\n\n/**\n * Creates a new URL by combining the baseURL with the requestedURL,\n * only when the requestedURL is not already an absolute URL.\n * If the requestURL is absolute, this function returns the requestedURL untouched.\n *\n * @param {string} baseURL The base URL\n * @param {string} requestedURL Absolute or relative URL to combine\n *\n * @returns {string} The combined full path\n */\nexport default function buildFullPath(baseURL, requestedURL) {\n  if (baseURL && !isAbsoluteURL(requestedURL)) {\n    return combineURLs(baseURL, requestedURL);\n  }\n  return requestedURL;\n}\n","'use strict';\n\n/**\n * Determines whether the specified URL is absolute\n *\n * @param {string} url The URL to test\n *\n * @returns {boolean} True if the specified URL is absolute, otherwise false\n */\nexport default function isAbsoluteURL(url) {\n  // A URL is considered absolute if it begins with \"<scheme>://\" or \"//\" (protocol-relative URL).\n  // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed\n  // by any combination of letters, digits, plus, period, or hyphen.\n  return /^([a-z][a-z\\d+\\-.]*:)?\\/\\//i.test(url);\n}\n","'use strict';\n\n/**\n * Creates a new URL by combining the specified URLs\n *\n * @param {string} baseURL The base URL\n * @param {string} relativeURL The relative URL\n *\n * @returns {string} The combined URL\n */\nexport default function combineURLs(baseURL, relativeURL) {\n  return relativeURL\n    ? baseURL.replace(/\\/?\\/$/, '') + '/' + relativeURL.replace(/^\\/+/, '')\n    : baseURL;\n}\n","'use strict';\n\nimport utils from '../utils.js';\nimport AxiosHeaders from \"./AxiosHeaders.js\";\n\nconst headersToObject = (thing) => thing instanceof AxiosHeaders ? { ...thing } : thing;\n\n/**\n * Config-specific merge-function which creates a new config-object\n * by merging two configuration objects together.\n *\n * @param {Object} config1\n * @param {Object} config2\n *\n * @returns {Object} New object resulting from merging config2 to config1\n */\nexport default function mergeConfig(config1, config2) {\n  // eslint-disable-next-line no-param-reassign\n  config2 = config2 || {};\n  const config = {};\n\n  function getMergedValue(target, source, prop, caseless) {\n    if (utils.isPlainObject(target) && utils.isPlainObject(source)) {\n      return utils.merge.call({caseless}, target, source);\n    } else if (utils.isPlainObject(source)) {\n      return utils.merge({}, source);\n    } else if (utils.isArray(source)) {\n      return source.slice();\n    }\n    return source;\n  }\n\n  // eslint-disable-next-line consistent-return\n  function mergeDeepProperties(a, b, prop , caseless) {\n    if (!utils.isUndefined(b)) {\n      return getMergedValue(a, b, prop , caseless);\n    } else if (!utils.isUndefined(a)) {\n      return getMergedValue(undefined, a, prop , caseless);\n    }\n  }\n\n  // eslint-disable-next-line consistent-return\n  function valueFromConfig2(a, b) {\n    if (!utils.isUndefined(b)) {\n      return getMergedValue(undefined, b);\n    }\n  }\n\n  // eslint-disable-next-line consistent-return\n  function defaultToConfig2(a, b) {\n    if (!utils.isUndefined(b)) {\n      return getMergedValue(undefined, b);\n    } else if (!utils.isUndefined(a)) {\n      return getMergedValue(undefined, a);\n    }\n  }\n\n  // eslint-disable-next-line consistent-return\n  function mergeDirectKeys(a, b, prop) {\n    if (prop in config2) {\n      return getMergedValue(a, b);\n    } else if (prop in config1) {\n      return getMergedValue(undefined, a);\n    }\n  }\n\n  const mergeMap = {\n    url: valueFromConfig2,\n    method: valueFromConfig2,\n    data: valueFromConfig2,\n    baseURL: defaultToConfig2,\n    transformRequest: defaultToConfig2,\n    transformResponse: defaultToConfig2,\n    paramsSerializer: defaultToConfig2,\n    timeout: defaultToConfig2,\n    timeoutMessage: defaultToConfig2,\n    withCredentials: defaultToConfig2,\n    withXSRFToken: defaultToConfig2,\n    adapter: defaultToConfig2,\n    responseType: defaultToConfig2,\n    xsrfCookieName: defaultToConfig2,\n    xsrfHeaderName: defaultToConfig2,\n    onUploadProgress: defaultToConfig2,\n    onDownloadProgress: defaultToConfig2,\n    decompress: defaultToConfig2,\n    maxContentLength: defaultToConfig2,\n    maxBodyLength: defaultToConfig2,\n    beforeRedirect: defaultToConfig2,\n    transport: defaultToConfig2,\n    httpAgent: defaultToConfig2,\n    httpsAgent: defaultToConfig2,\n    cancelToken: defaultToConfig2,\n    socketPath: defaultToConfig2,\n    responseEncoding: defaultToConfig2,\n    validateStatus: mergeDirectKeys,\n    headers: (a, b , prop) => mergeDeepProperties(headersToObject(a), headersToObject(b),prop, true)\n  };\n\n  utils.forEach(Object.keys(Object.assign({}, config1, config2)), function computeConfigValue(prop) {\n    const merge = mergeMap[prop] || mergeDeepProperties;\n    const configValue = merge(config1[prop], config2[prop], prop);\n    (utils.isUndefined(configValue) && merge !== mergeDirectKeys) || (config[prop] = configValue);\n  });\n\n  return config;\n}\n","import platform from \"../platform/index.js\";\nimport utils from \"../utils.js\";\nimport isURLSameOrigin from \"./isURLSameOrigin.js\";\nimport cookies from \"./cookies.js\";\nimport buildFullPath from \"../core/buildFullPath.js\";\nimport mergeConfig from \"../core/mergeConfig.js\";\nimport AxiosHeaders from \"../core/AxiosHeaders.js\";\nimport buildURL from \"./buildURL.js\";\n\nexport default (config) => {\n  const newConfig = mergeConfig({}, config);\n\n  let {data, withXSRFToken, xsrfHeaderName, xsrfCookieName, headers, auth} = newConfig;\n\n  newConfig.headers = headers = AxiosHeaders.from(headers);\n\n  newConfig.url = buildURL(buildFullPath(newConfig.baseURL, newConfig.url), config.params, config.paramsSerializer);\n\n  // HTTP basic authentication\n  if (auth) {\n    headers.set('Authorization', 'Basic ' +\n      btoa((auth.username || '') + ':' + (auth.password ? unescape(encodeURIComponent(auth.password)) : ''))\n    );\n  }\n\n  let contentType;\n\n  if (utils.isFormData(data)) {\n    if (platform.hasStandardBrowserEnv || platform.hasStandardBrowserWebWorkerEnv) {\n      headers.setContentType(undefined); // Let the browser set it\n    } else if ((contentType = headers.getContentType()) !== false) {\n      // fix semicolon duplication issue for ReactNative FormData implementation\n      const [type, ...tokens] = contentType ? contentType.split(';').map(token => token.trim()).filter(Boolean) : [];\n      headers.setContentType([type || 'multipart/form-data', ...tokens].join('; '));\n    }\n  }\n\n  // Add xsrf header\n  // This is only done if running in a standard browser environment.\n  // Specifically not if we're in a web worker, or react-native.\n\n  if (platform.hasStandardBrowserEnv) {\n    withXSRFToken && utils.isFunction(withXSRFToken) && (withXSRFToken = withXSRFToken(newConfig));\n\n    if (withXSRFToken || (withXSRFToken !== false && isURLSameOrigin(newConfig.url))) {\n      // Add xsrf header\n      const xsrfValue = xsrfHeaderName && xsrfCookieName && cookies.read(xsrfCookieName);\n\n      if (xsrfValue) {\n        headers.set(xsrfHeaderName, xsrfValue);\n      }\n    }\n  }\n\n  return newConfig;\n}\n\n","import platform from \"../platform/index.js\";\nimport utils from \"../utils.js\";\nimport AxiosError from \"../core/AxiosError.js\";\nimport composeSignals from \"../helpers/composeSignals.js\";\nimport {trackStream} from \"../helpers/trackStream.js\";\nimport AxiosHeaders from \"../core/AxiosHeaders.js\";\nimport {progressEventReducer, progressEventDecorator, asyncDecorator} from \"../helpers/progressEventReducer.js\";\nimport resolveConfig from \"../helpers/resolveConfig.js\";\nimport settle from \"../core/settle.js\";\n\nconst isFetchSupported = typeof fetch === 'function' && typeof Request === 'function' && typeof Response === 'function';\nconst isReadableStreamSupported = isFetchSupported && typeof ReadableStream === 'function';\n\n// used only inside the fetch adapter\nconst encodeText = isFetchSupported && (typeof TextEncoder === 'function' ?\n    ((encoder) => (str) => encoder.encode(str))(new TextEncoder()) :\n    async (str) => new Uint8Array(await new Response(str).arrayBuffer())\n);\n\nconst test = (fn, ...args) => {\n  try {\n    return !!fn(...args);\n  } catch (e) {\n    return false\n  }\n}\n\nconst supportsRequestStream = isReadableStreamSupported && test(() => {\n  let duplexAccessed = false;\n\n  const hasContentType = new Request(platform.origin, {\n    body: new ReadableStream(),\n    method: 'POST',\n    get duplex() {\n      duplexAccessed = true;\n      return 'half';\n    },\n  }).headers.has('Content-Type');\n\n  return duplexAccessed && !hasContentType;\n});\n\nconst DEFAULT_CHUNK_SIZE = 64 * 1024;\n\nconst supportsResponseStream = isReadableStreamSupported &&\n  test(() => utils.isReadableStream(new Response('').body));\n\n\nconst resolvers = {\n  stream: supportsResponseStream && ((res) => res.body)\n};\n\nisFetchSupported && (((res) => {\n  ['text', 'arrayBuffer', 'blob', 'formData', 'stream'].forEach(type => {\n    !resolvers[type] && (resolvers[type] = utils.isFunction(res[type]) ? (res) => res[type]() :\n      (_, config) => {\n        throw new AxiosError(`Response type '${type}' is not supported`, AxiosError.ERR_NOT_SUPPORT, config);\n      })\n  });\n})(new Response));\n\nconst getBodyLength = async (body) => {\n  if (body == null) {\n    return 0;\n  }\n\n  if(utils.isBlob(body)) {\n    return body.size;\n  }\n\n  if(utils.isSpecCompliantForm(body)) {\n    const _request = new Request(platform.origin, {\n      method: 'POST',\n      body,\n    });\n    return (await _request.arrayBuffer()).byteLength;\n  }\n\n  if(utils.isArrayBufferView(body) || utils.isArrayBuffer(body)) {\n    return body.byteLength;\n  }\n\n  if(utils.isURLSearchParams(body)) {\n    body = body + '';\n  }\n\n  if(utils.isString(body)) {\n    return (await encodeText(body)).byteLength;\n  }\n}\n\nconst resolveBodyLength = async (headers, body) => {\n  const length = utils.toFiniteNumber(headers.getContentLength());\n\n  return length == null ? getBodyLength(body) : length;\n}\n\nexport default isFetchSupported && (async (config) => {\n  let {\n    url,\n    method,\n    data,\n    signal,\n    cancelToken,\n    timeout,\n    onDownloadProgress,\n    onUploadProgress,\n    responseType,\n    headers,\n    withCredentials = 'same-origin',\n    fetchOptions\n  } = resolveConfig(config);\n\n  responseType = responseType ? (responseType + '').toLowerCase() : 'text';\n\n  let composedSignal = composeSignals([signal, cancelToken && cancelToken.toAbortSignal()], timeout);\n\n  let request;\n\n  const unsubscribe = composedSignal && composedSignal.unsubscribe && (() => {\n      composedSignal.unsubscribe();\n  });\n\n  let requestContentLength;\n\n  try {\n    if (\n      onUploadProgress && supportsRequestStream && method !== 'get' && method !== 'head' &&\n      (requestContentLength = await resolveBodyLength(headers, data)) !== 0\n    ) {\n      let _request = new Request(url, {\n        method: 'POST',\n        body: data,\n        duplex: \"half\"\n      });\n\n      let contentTypeHeader;\n\n      if (utils.isFormData(data) && (contentTypeHeader = _request.headers.get('content-type'))) {\n        headers.setContentType(contentTypeHeader)\n      }\n\n      if (_request.body) {\n        const [onProgress, flush] = progressEventDecorator(\n          requestContentLength,\n          progressEventReducer(asyncDecorator(onUploadProgress))\n        );\n\n        data = trackStream(_request.body, DEFAULT_CHUNK_SIZE, onProgress, flush);\n      }\n    }\n\n    if (!utils.isString(withCredentials)) {\n      withCredentials = withCredentials ? 'include' : 'omit';\n    }\n\n    // Cloudflare Workers throws when credentials are defined\n    // see https://github.com/cloudflare/workerd/issues/902\n    const isCredentialsSupported = \"credentials\" in Request.prototype;\n    request = new Request(url, {\n      ...fetchOptions,\n      signal: composedSignal,\n      method: method.toUpperCase(),\n      headers: headers.normalize().toJSON(),\n      body: data,\n      duplex: \"half\",\n      credentials: isCredentialsSupported ? withCredentials : undefined\n    });\n\n    let response = await fetch(request);\n\n    const isStreamResponse = supportsResponseStream && (responseType === 'stream' || responseType === 'response');\n\n    if (supportsResponseStream && (onDownloadProgress || (isStreamResponse && unsubscribe))) {\n      const options = {};\n\n      ['status', 'statusText', 'headers'].forEach(prop => {\n        options[prop] = response[prop];\n      });\n\n      const responseContentLength = utils.toFiniteNumber(response.headers.get('content-length'));\n\n      const [onProgress, flush] = onDownloadProgress && progressEventDecorator(\n        responseContentLength,\n        progressEventReducer(asyncDecorator(onDownloadProgress), true)\n      ) || [];\n\n      response = new Response(\n        trackStream(response.body, DEFAULT_CHUNK_SIZE, onProgress, () => {\n          flush && flush();\n          unsubscribe && unsubscribe();\n        }),\n        options\n      );\n    }\n\n    responseType = responseType || 'text';\n\n    let responseData = await resolvers[utils.findKey(resolvers, responseType) || 'text'](response, config);\n\n    !isStreamResponse && unsubscribe && unsubscribe();\n\n    return await new Promise((resolve, reject) => {\n      settle(resolve, reject, {\n        data: responseData,\n        headers: AxiosHeaders.from(response.headers),\n        status: response.status,\n        statusText: response.statusText,\n        config,\n        request\n      })\n    })\n  } catch (err) {\n    unsubscribe && unsubscribe();\n\n    if (err && err.name === 'TypeError' && /fetch/i.test(err.message)) {\n      throw Object.assign(\n        new AxiosError('Network Error', AxiosError.ERR_NETWORK, config, request),\n        {\n          cause: err.cause || err\n        }\n      )\n    }\n\n    throw AxiosError.from(err, err && err.code, config, request);\n  }\n});\n\n\n","import utils from './../utils.js';\nimport settle from './../core/settle.js';\nimport transitionalDefaults from '../defaults/transitional.js';\nimport AxiosError from '../core/AxiosError.js';\nimport CanceledError from '../cancel/CanceledError.js';\nimport parseProtocol from '../helpers/parseProtocol.js';\nimport platform from '../platform/index.js';\nimport AxiosHeaders from '../core/AxiosHeaders.js';\nimport {progressEventReducer} from '../helpers/progressEventReducer.js';\nimport resolveConfig from \"../helpers/resolveConfig.js\";\n\nconst isXHRAdapterSupported = typeof XMLHttpRequest !== 'undefined';\n\nexport default isXHRAdapterSupported && function (config) {\n  return new Promise(function dispatchXhrRequest(resolve, reject) {\n    const _config = resolveConfig(config);\n    let requestData = _config.data;\n    const requestHeaders = AxiosHeaders.from(_config.headers).normalize();\n    let {responseType, onUploadProgress, onDownloadProgress} = _config;\n    let onCanceled;\n    let uploadThrottled, downloadThrottled;\n    let flushUpload, flushDownload;\n\n    function done() {\n      flushUpload && flushUpload(); // flush events\n      flushDownload && flushDownload(); // flush events\n\n      _config.cancelToken && _config.cancelToken.unsubscribe(onCanceled);\n\n      _config.signal && _config.signal.removeEventListener('abort', onCanceled);\n    }\n\n    let request = new XMLHttpRequest();\n\n    request.open(_config.method.toUpperCase(), _config.url, true);\n\n    // Set the request timeout in MS\n    request.timeout = _config.timeout;\n\n    function onloadend() {\n      if (!request) {\n        return;\n      }\n      // Prepare the response\n      const responseHeaders = AxiosHeaders.from(\n        'getAllResponseHeaders' in request && request.getAllResponseHeaders()\n      );\n      const responseData = !responseType || responseType === 'text' || responseType === 'json' ?\n        request.responseText : request.response;\n      const response = {\n        data: responseData,\n        status: request.status,\n        statusText: request.statusText,\n        headers: responseHeaders,\n        config,\n        request\n      };\n\n      settle(function _resolve(value) {\n        resolve(value);\n        done();\n      }, function _reject(err) {\n        reject(err);\n        done();\n      }, response);\n\n      // Clean up request\n      request = null;\n    }\n\n    if ('onloadend' in request) {\n      // Use onloadend if available\n      request.onloadend = onloadend;\n    } else {\n      // Listen for ready state to emulate onloadend\n      request.onreadystatechange = function handleLoad() {\n        if (!request || request.readyState !== 4) {\n          return;\n        }\n\n        // The request errored out and we didn't get a response, this will be\n        // handled by onerror instead\n        // With one exception: request that using file: protocol, most browsers\n        // will return status as 0 even though it's a successful request\n        if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {\n          return;\n        }\n        // readystate handler is calling before onerror or ontimeout handlers,\n        // so we should call onloadend on the next 'tick'\n        setTimeout(onloadend);\n      };\n    }\n\n    // Handle browser request cancellation (as opposed to a manual cancellation)\n    request.onabort = function handleAbort() {\n      if (!request) {\n        return;\n      }\n\n      reject(new AxiosError('Request aborted', AxiosError.ECONNABORTED, config, request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Handle low level network errors\n    request.onerror = function handleError() {\n      // Real errors are hidden from us by the browser\n      // onerror should only fire if it's a network error\n      reject(new AxiosError('Network Error', AxiosError.ERR_NETWORK, config, request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Handle timeout\n    request.ontimeout = function handleTimeout() {\n      let timeoutErrorMessage = _config.timeout ? 'timeout of ' + _config.timeout + 'ms exceeded' : 'timeout exceeded';\n      const transitional = _config.transitional || transitionalDefaults;\n      if (_config.timeoutErrorMessage) {\n        timeoutErrorMessage = _config.timeoutErrorMessage;\n      }\n      reject(new AxiosError(\n        timeoutErrorMessage,\n        transitional.clarifyTimeoutError ? AxiosError.ETIMEDOUT : AxiosError.ECONNABORTED,\n        config,\n        request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Remove Content-Type if data is undefined\n    requestData === undefined && requestHeaders.setContentType(null);\n\n    // Add headers to the request\n    if ('setRequestHeader' in request) {\n      utils.forEach(requestHeaders.toJSON(), function setRequestHeader(val, key) {\n        request.setRequestHeader(key, val);\n      });\n    }\n\n    // Add withCredentials to request if needed\n    if (!utils.isUndefined(_config.withCredentials)) {\n      request.withCredentials = !!_config.withCredentials;\n    }\n\n    // Add responseType to request if needed\n    if (responseType && responseType !== 'json') {\n      request.responseType = _config.responseType;\n    }\n\n    // Handle progress if needed\n    if (onDownloadProgress) {\n      ([downloadThrottled, flushDownload] = progressEventReducer(onDownloadProgress, true));\n      request.addEventListener('progress', downloadThrottled);\n    }\n\n    // Not all browsers support upload events\n    if (onUploadProgress && request.upload) {\n      ([uploadThrottled, flushUpload] = progressEventReducer(onUploadProgress));\n\n      request.upload.addEventListener('progress', uploadThrottled);\n\n      request.upload.addEventListener('loadend', flushUpload);\n    }\n\n    if (_config.cancelToken || _config.signal) {\n      // Handle cancellation\n      // eslint-disable-next-line func-names\n      onCanceled = cancel => {\n        if (!request) {\n          return;\n        }\n        reject(!cancel || cancel.type ? new CanceledError(null, config, request) : cancel);\n        request.abort();\n        request = null;\n      };\n\n      _config.cancelToken && _config.cancelToken.subscribe(onCanceled);\n      if (_config.signal) {\n        _config.signal.aborted ? onCanceled() : _config.signal.addEventListener('abort', onCanceled);\n      }\n    }\n\n    const protocol = parseProtocol(_config.url);\n\n    if (protocol && platform.protocols.indexOf(protocol) === -1) {\n      reject(new AxiosError('Unsupported protocol ' + protocol + ':', AxiosError.ERR_BAD_REQUEST, config));\n      return;\n    }\n\n\n    // Send the request\n    request.send(requestData || null);\n  });\n}\n","'use strict';\n\nexport default function parseProtocol(url) {\n  const match = /^([-+\\w]{1,25})(:?\\/\\/|:)/.exec(url);\n  return match && match[1] || '';\n}\n","import CanceledError from \"../cancel/CanceledError.js\";\nimport AxiosError from \"../core/AxiosError.js\";\nimport utils from '../utils.js';\n\nconst composeSignals = (signals, timeout) => {\n  const {length} = (signals = signals ? signals.filter(Boolean) : []);\n\n  if (timeout || length) {\n    let controller = new AbortController();\n\n    let aborted;\n\n    const onabort = function (reason) {\n      if (!aborted) {\n        aborted = true;\n        unsubscribe();\n        const err = reason instanceof Error ? reason : this.reason;\n        controller.abort(err instanceof AxiosError ? err : new CanceledError(err instanceof Error ? err.message : err));\n      }\n    }\n\n    let timer = timeout && setTimeout(() => {\n      timer = null;\n      onabort(new AxiosError(`timeout ${timeout} of ms exceeded`, AxiosError.ETIMEDOUT))\n    }, timeout)\n\n    const unsubscribe = () => {\n      if (signals) {\n        timer && clearTimeout(timer);\n        timer = null;\n        signals.forEach(signal => {\n          signal.unsubscribe ? signal.unsubscribe(onabort) : signal.removeEventListener('abort', onabort);\n        });\n        signals = null;\n      }\n    }\n\n    signals.forEach((signal) => signal.addEventListener('abort', onabort));\n\n    const {signal} = controller;\n\n    signal.unsubscribe = () => utils.asap(unsubscribe);\n\n    return signal;\n  }\n}\n\nexport default composeSignals;\n","\nexport const streamChunk = function* (chunk, chunkSize) {\n  let len = chunk.byteLength;\n\n  if (!chunkSize || len < chunkSize) {\n    yield chunk;\n    return;\n  }\n\n  let pos = 0;\n  let end;\n\n  while (pos < len) {\n    end = pos + chunkSize;\n    yield chunk.slice(pos, end);\n    pos = end;\n  }\n}\n\nexport const readBytes = async function* (iterable, chunkSize) {\n  for await (const chunk of readStream(iterable)) {\n    yield* streamChunk(chunk, chunkSize);\n  }\n}\n\nconst readStream = async function* (stream) {\n  if (stream[Symbol.asyncIterator]) {\n    yield* stream;\n    return;\n  }\n\n  const reader = stream.getReader();\n  try {\n    for (;;) {\n      const {done, value} = await reader.read();\n      if (done) {\n        break;\n      }\n      yield value;\n    }\n  } finally {\n    await reader.cancel();\n  }\n}\n\nexport const trackStream = (stream, chunkSize, onProgress, onFinish) => {\n  const iterator = readBytes(stream, chunkSize);\n\n  let bytes = 0;\n  let done;\n  let _onFinish = (e) => {\n    if (!done) {\n      done = true;\n      onFinish && onFinish(e);\n    }\n  }\n\n  return new ReadableStream({\n    async pull(controller) {\n      try {\n        const {done, value} = await iterator.next();\n\n        if (done) {\n         _onFinish();\n          controller.close();\n          return;\n        }\n\n        let len = value.byteLength;\n        if (onProgress) {\n          let loadedBytes = bytes += len;\n          onProgress(loadedBytes);\n        }\n        controller.enqueue(new Uint8Array(value));\n      } catch (err) {\n        _onFinish(err);\n        throw err;\n      }\n    },\n    cancel(reason) {\n      _onFinish(reason);\n      return iterator.return();\n    }\n  }, {\n    highWaterMark: 2\n  })\n}\n","import utils from '../utils.js';\nimport httpAdapter from './http.js';\nimport xhrAdapter from './xhr.js';\nimport fetchAdapter from './fetch.js';\nimport AxiosError from \"../core/AxiosError.js\";\n\nconst knownAdapters = {\n  http: httpAdapter,\n  xhr: xhrAdapter,\n  fetch: fetchAdapter\n}\n\nutils.forEach(knownAdapters, (fn, value) => {\n  if (fn) {\n    try {\n      Object.defineProperty(fn, 'name', {value});\n    } catch (e) {\n      // eslint-disable-next-line no-empty\n    }\n    Object.defineProperty(fn, 'adapterName', {value});\n  }\n});\n\nconst renderReason = (reason) => `- ${reason}`;\n\nconst isResolvedHandle = (adapter) => utils.isFunction(adapter) || adapter === null || adapter === false;\n\nexport default {\n  getAdapter: (adapters) => {\n    adapters = utils.isArray(adapters) ? adapters : [adapters];\n\n    const {length} = adapters;\n    let nameOrAdapter;\n    let adapter;\n\n    const rejectedReasons = {};\n\n    for (let i = 0; i < length; i++) {\n      nameOrAdapter = adapters[i];\n      let id;\n\n      adapter = nameOrAdapter;\n\n      if (!isResolvedHandle(nameOrAdapter)) {\n        adapter = knownAdapters[(id = String(nameOrAdapter)).toLowerCase()];\n\n        if (adapter === undefined) {\n          throw new AxiosError(`Unknown adapter '${id}'`);\n        }\n      }\n\n      if (adapter) {\n        break;\n      }\n\n      rejectedReasons[id || '#' + i] = adapter;\n    }\n\n    if (!adapter) {\n\n      const reasons = Object.entries(rejectedReasons)\n        .map(([id, state]) => `adapter ${id} ` +\n          (state === false ? 'is not supported by the environment' : 'is not available in the build')\n        );\n\n      let s = length ?\n        (reasons.length > 1 ? 'since :\\n' + reasons.map(renderReason).join('\\n') : ' ' + renderReason(reasons[0])) :\n        'as no adapter specified';\n\n      throw new AxiosError(\n        `There is no suitable adapter to dispatch the request ` + s,\n        'ERR_NOT_SUPPORT'\n      );\n    }\n\n    return adapter;\n  },\n  adapters: knownAdapters\n}\n","// eslint-disable-next-line strict\nexport default null;\n","'use strict';\n\nimport transformData from './transformData.js';\nimport isCancel from '../cancel/isCancel.js';\nimport defaults from '../defaults/index.js';\nimport CanceledError from '../cancel/CanceledError.js';\nimport AxiosHeaders from '../core/AxiosHeaders.js';\nimport adapters from \"../adapters/adapters.js\";\n\n/**\n * Throws a `CanceledError` if cancellation has been requested.\n *\n * @param {Object} config The config that is to be used for the request\n *\n * @returns {void}\n */\nfunction throwIfCancellationRequested(config) {\n  if (config.cancelToken) {\n    config.cancelToken.throwIfRequested();\n  }\n\n  if (config.signal && config.signal.aborted) {\n    throw new CanceledError(null, config);\n  }\n}\n\n/**\n * Dispatch a request to the server using the configured adapter.\n *\n * @param {object} config The config that is to be used for the request\n *\n * @returns {Promise} The Promise to be fulfilled\n */\nexport default function dispatchRequest(config) {\n  throwIfCancellationRequested(config);\n\n  config.headers = AxiosHeaders.from(config.headers);\n\n  // Transform request data\n  config.data = transformData.call(\n    config,\n    config.transformRequest\n  );\n\n  if (['post', 'put', 'patch'].indexOf(config.method) !== -1) {\n    config.headers.setContentType('application/x-www-form-urlencoded', false);\n  }\n\n  const adapter = adapters.getAdapter(config.adapter || defaults.adapter);\n\n  return adapter(config).then(function onAdapterResolution(response) {\n    throwIfCancellationRequested(config);\n\n    // Transform response data\n    response.data = transformData.call(\n      config,\n      config.transformResponse,\n      response\n    );\n\n    response.headers = AxiosHeaders.from(response.headers);\n\n    return response;\n  }, function onAdapterRejection(reason) {\n    if (!isCancel(reason)) {\n      throwIfCancellationRequested(config);\n\n      // Transform response data\n      if (reason && reason.response) {\n        reason.response.data = transformData.call(\n          config,\n          config.transformResponse,\n          reason.response\n        );\n        reason.response.headers = AxiosHeaders.from(reason.response.headers);\n      }\n    }\n\n    return Promise.reject(reason);\n  });\n}\n","export const VERSION = \"1.7.9\";","'use strict';\n\nimport {VERSION} from '../env/data.js';\nimport AxiosError from '../core/AxiosError.js';\n\nconst validators = {};\n\n// eslint-disable-next-line func-names\n['object', 'boolean', 'number', 'function', 'string', 'symbol'].forEach((type, i) => {\n  validators[type] = function validator(thing) {\n    return typeof thing === type || 'a' + (i < 1 ? 'n ' : ' ') + type;\n  };\n});\n\nconst deprecatedWarnings = {};\n\n/**\n * Transitional option validator\n *\n * @param {function|boolean?} validator - set to false if the transitional option has been removed\n * @param {string?} version - deprecated version / removed since version\n * @param {string?} message - some message with additional info\n *\n * @returns {function}\n */\nvalidators.transitional = function transitional(validator, version, message) {\n  function formatMessage(opt, desc) {\n    return '[Axios v' + VERSION + '] Transitional option \\'' + opt + '\\'' + desc + (message ? '. ' + message : '');\n  }\n\n  // eslint-disable-next-line func-names\n  return (value, opt, opts) => {\n    if (validator === false) {\n      throw new AxiosError(\n        formatMessage(opt, ' has been removed' + (version ? ' in ' + version : '')),\n        AxiosError.ERR_DEPRECATED\n      );\n    }\n\n    if (version && !deprecatedWarnings[opt]) {\n      deprecatedWarnings[opt] = true;\n      // eslint-disable-next-line no-console\n      console.warn(\n        formatMessage(\n          opt,\n          ' has been deprecated since v' + version + ' and will be removed in the near future'\n        )\n      );\n    }\n\n    return validator ? validator(value, opt, opts) : true;\n  };\n};\n\nvalidators.spelling = function spelling(correctSpelling) {\n  return (value, opt) => {\n    // eslint-disable-next-line no-console\n    console.warn(`${opt} is likely a misspelling of ${correctSpelling}`);\n    return true;\n  }\n};\n\n/**\n * Assert object's properties type\n *\n * @param {object} options\n * @param {object} schema\n * @param {boolean?} allowUnknown\n *\n * @returns {object}\n */\n\nfunction assertOptions(options, schema, allowUnknown) {\n  if (typeof options !== 'object') {\n    throw new AxiosError('options must be an object', AxiosError.ERR_BAD_OPTION_VALUE);\n  }\n  const keys = Object.keys(options);\n  let i = keys.length;\n  while (i-- > 0) {\n    const opt = keys[i];\n    const validator = schema[opt];\n    if (validator) {\n      const value = options[opt];\n      const result = value === undefined || validator(value, opt, options);\n      if (result !== true) {\n        throw new AxiosError('option ' + opt + ' must be ' + result, AxiosError.ERR_BAD_OPTION_VALUE);\n      }\n      continue;\n    }\n    if (allowUnknown !== true) {\n      throw new AxiosError('Unknown option ' + opt, AxiosError.ERR_BAD_OPTION);\n    }\n  }\n}\n\nexport default {\n  assertOptions,\n  validators\n};\n","'use strict';\n\nimport utils from './../utils.js';\nimport buildURL from '../helpers/buildURL.js';\nimport InterceptorManager from './InterceptorManager.js';\nimport dispatchRequest from './dispatchRequest.js';\nimport mergeConfig from './mergeConfig.js';\nimport buildFullPath from './buildFullPath.js';\nimport validator from '../helpers/validator.js';\nimport AxiosHeaders from './AxiosHeaders.js';\n\nconst validators = validator.validators;\n\n/**\n * Create a new instance of Axios\n *\n * @param {Object} instanceConfig The default config for the instance\n *\n * @return {Axios} A new instance of Axios\n */\nclass Axios {\n  constructor(instanceConfig) {\n    this.defaults = instanceConfig;\n    this.interceptors = {\n      request: new InterceptorManager(),\n      response: new InterceptorManager()\n    };\n  }\n\n  /**\n   * Dispatch a request\n   *\n   * @param {String|Object} configOrUrl The config specific for this request (merged with this.defaults)\n   * @param {?Object} config\n   *\n   * @returns {Promise} The Promise to be fulfilled\n   */\n  async request(configOrUrl, config) {\n    try {\n      return await this._request(configOrUrl, config);\n    } catch (err) {\n      if (err instanceof Error) {\n        let dummy = {};\n\n        Error.captureStackTrace ? Error.captureStackTrace(dummy) : (dummy = new Error());\n\n        // slice off the Error: ... line\n        const stack = dummy.stack ? dummy.stack.replace(/^.+\\n/, '') : '';\n        try {\n          if (!err.stack) {\n            err.stack = stack;\n            // match without the 2 top stack lines\n          } else if (stack && !String(err.stack).endsWith(stack.replace(/^.+\\n.+\\n/, ''))) {\n            err.stack += '\\n' + stack\n          }\n        } catch (e) {\n          // ignore the case where \"stack\" is an un-writable property\n        }\n      }\n\n      throw err;\n    }\n  }\n\n  _request(configOrUrl, config) {\n    /*eslint no-param-reassign:0*/\n    // Allow for axios('example/url'[, config]) a la fetch API\n    if (typeof configOrUrl === 'string') {\n      config = config || {};\n      config.url = configOrUrl;\n    } else {\n      config = configOrUrl || {};\n    }\n\n    config = mergeConfig(this.defaults, config);\n\n    const {transitional, paramsSerializer, headers} = config;\n\n    if (transitional !== undefined) {\n      validator.assertOptions(transitional, {\n        silentJSONParsing: validators.transitional(validators.boolean),\n        forcedJSONParsing: validators.transitional(validators.boolean),\n        clarifyTimeoutError: validators.transitional(validators.boolean)\n      }, false);\n    }\n\n    if (paramsSerializer != null) {\n      if (utils.isFunction(paramsSerializer)) {\n        config.paramsSerializer = {\n          serialize: paramsSerializer\n        }\n      } else {\n        validator.assertOptions(paramsSerializer, {\n          encode: validators.function,\n          serialize: validators.function\n        }, true);\n      }\n    }\n\n    validator.assertOptions(config, {\n      baseUrl: validators.spelling('baseURL'),\n      withXsrfToken: validators.spelling('withXSRFToken')\n    }, true);\n\n    // Set config.method\n    config.method = (config.method || this.defaults.method || 'get').toLowerCase();\n\n    // Flatten headers\n    let contextHeaders = headers && utils.merge(\n      headers.common,\n      headers[config.method]\n    );\n\n    headers && utils.forEach(\n      ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],\n      (method) => {\n        delete headers[method];\n      }\n    );\n\n    config.headers = AxiosHeaders.concat(contextHeaders, headers);\n\n    // filter out skipped interceptors\n    const requestInterceptorChain = [];\n    let synchronousRequestInterceptors = true;\n    this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {\n      if (typeof interceptor.runWhen === 'function' && interceptor.runWhen(config) === false) {\n        return;\n      }\n\n      synchronousRequestInterceptors = synchronousRequestInterceptors && interceptor.synchronous;\n\n      requestInterceptorChain.unshift(interceptor.fulfilled, interceptor.rejected);\n    });\n\n    const responseInterceptorChain = [];\n    this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {\n      responseInterceptorChain.push(interceptor.fulfilled, interceptor.rejected);\n    });\n\n    let promise;\n    let i = 0;\n    let len;\n\n    if (!synchronousRequestInterceptors) {\n      const chain = [dispatchRequest.bind(this), undefined];\n      chain.unshift.apply(chain, requestInterceptorChain);\n      chain.push.apply(chain, responseInterceptorChain);\n      len = chain.length;\n\n      promise = Promise.resolve(config);\n\n      while (i < len) {\n        promise = promise.then(chain[i++], chain[i++]);\n      }\n\n      return promise;\n    }\n\n    len = requestInterceptorChain.length;\n\n    let newConfig = config;\n\n    i = 0;\n\n    while (i < len) {\n      const onFulfilled = requestInterceptorChain[i++];\n      const onRejected = requestInterceptorChain[i++];\n      try {\n        newConfig = onFulfilled(newConfig);\n      } catch (error) {\n        onRejected.call(this, error);\n        break;\n      }\n    }\n\n    try {\n      promise = dispatchRequest.call(this, newConfig);\n    } catch (error) {\n      return Promise.reject(error);\n    }\n\n    i = 0;\n    len = responseInterceptorChain.length;\n\n    while (i < len) {\n      promise = promise.then(responseInterceptorChain[i++], responseInterceptorChain[i++]);\n    }\n\n    return promise;\n  }\n\n  getUri(config) {\n    config = mergeConfig(this.defaults, config);\n    const fullPath = buildFullPath(config.baseURL, config.url);\n    return buildURL(fullPath, config.params, config.paramsSerializer);\n  }\n}\n\n// Provide aliases for supported request methods\nutils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {\n  /*eslint func-names:0*/\n  Axios.prototype[method] = function(url, config) {\n    return this.request(mergeConfig(config || {}, {\n      method,\n      url,\n      data: (config || {}).data\n    }));\n  };\n});\n\nutils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {\n  /*eslint func-names:0*/\n\n  function generateHTTPMethod(isForm) {\n    return function httpMethod(url, data, config) {\n      return this.request(mergeConfig(config || {}, {\n        method,\n        headers: isForm ? {\n          'Content-Type': 'multipart/form-data'\n        } : {},\n        url,\n        data\n      }));\n    };\n  }\n\n  Axios.prototype[method] = generateHTTPMethod();\n\n  Axios.prototype[method + 'Form'] = generateHTTPMethod(true);\n});\n\nexport default Axios;\n","'use strict';\n\nimport CanceledError from './CanceledError.js';\n\n/**\n * A `CancelToken` is an object that can be used to request cancellation of an operation.\n *\n * @param {Function} executor The executor function.\n *\n * @returns {CancelToken}\n */\nclass CancelToken {\n  constructor(executor) {\n    if (typeof executor !== 'function') {\n      throw new TypeError('executor must be a function.');\n    }\n\n    let resolvePromise;\n\n    this.promise = new Promise(function promiseExecutor(resolve) {\n      resolvePromise = resolve;\n    });\n\n    const token = this;\n\n    // eslint-disable-next-line func-names\n    this.promise.then(cancel => {\n      if (!token._listeners) return;\n\n      let i = token._listeners.length;\n\n      while (i-- > 0) {\n        token._listeners[i](cancel);\n      }\n      token._listeners = null;\n    });\n\n    // eslint-disable-next-line func-names\n    this.promise.then = onfulfilled => {\n      let _resolve;\n      // eslint-disable-next-line func-names\n      const promise = new Promise(resolve => {\n        token.subscribe(resolve);\n        _resolve = resolve;\n      }).then(onfulfilled);\n\n      promise.cancel = function reject() {\n        token.unsubscribe(_resolve);\n      };\n\n      return promise;\n    };\n\n    executor(function cancel(message, config, request) {\n      if (token.reason) {\n        // Cancellation has already been requested\n        return;\n      }\n\n      token.reason = new CanceledError(message, config, request);\n      resolvePromise(token.reason);\n    });\n  }\n\n  /**\n   * Throws a `CanceledError` if cancellation has been requested.\n   */\n  throwIfRequested() {\n    if (this.reason) {\n      throw this.reason;\n    }\n  }\n\n  /**\n   * Subscribe to the cancel signal\n   */\n\n  subscribe(listener) {\n    if (this.reason) {\n      listener(this.reason);\n      return;\n    }\n\n    if (this._listeners) {\n      this._listeners.push(listener);\n    } else {\n      this._listeners = [listener];\n    }\n  }\n\n  /**\n   * Unsubscribe from the cancel signal\n   */\n\n  unsubscribe(listener) {\n    if (!this._listeners) {\n      return;\n    }\n    const index = this._listeners.indexOf(listener);\n    if (index !== -1) {\n      this._listeners.splice(index, 1);\n    }\n  }\n\n  toAbortSignal() {\n    const controller = new AbortController();\n\n    const abort = (err) => {\n      controller.abort(err);\n    };\n\n    this.subscribe(abort);\n\n    controller.signal.unsubscribe = () => this.unsubscribe(abort);\n\n    return controller.signal;\n  }\n\n  /**\n   * Returns an object that contains a new `CancelToken` and a function that, when called,\n   * cancels the `CancelToken`.\n   */\n  static source() {\n    let cancel;\n    const token = new CancelToken(function executor(c) {\n      cancel = c;\n    });\n    return {\n      token,\n      cancel\n    };\n  }\n}\n\nexport default CancelToken;\n","const HttpStatusCode = {\n  Continue: 100,\n  SwitchingProtocols: 101,\n  Processing: 102,\n  EarlyHints: 103,\n  Ok: 200,\n  Created: 201,\n  Accepted: 202,\n  NonAuthoritativeInformation: 203,\n  NoContent: 204,\n  ResetContent: 205,\n  PartialContent: 206,\n  MultiStatus: 207,\n  AlreadyReported: 208,\n  ImUsed: 226,\n  MultipleChoices: 300,\n  MovedPermanently: 301,\n  Found: 302,\n  SeeOther: 303,\n  NotModified: 304,\n  UseProxy: 305,\n  Unused: 306,\n  TemporaryRedirect: 307,\n  PermanentRedirect: 308,\n  BadRequest: 400,\n  Unauthorized: 401,\n  PaymentRequired: 402,\n  Forbidden: 403,\n  NotFound: 404,\n  MethodNotAllowed: 405,\n  NotAcceptable: 406,\n  ProxyAuthenticationRequired: 407,\n  RequestTimeout: 408,\n  Conflict: 409,\n  Gone: 410,\n  LengthRequired: 411,\n  PreconditionFailed: 412,\n  PayloadTooLarge: 413,\n  UriTooLong: 414,\n  UnsupportedMediaType: 415,\n  RangeNotSatisfiable: 416,\n  ExpectationFailed: 417,\n  ImATeapot: 418,\n  MisdirectedRequest: 421,\n  UnprocessableEntity: 422,\n  Locked: 423,\n  FailedDependency: 424,\n  TooEarly: 425,\n  UpgradeRequired: 426,\n  PreconditionRequired: 428,\n  TooManyRequests: 429,\n  RequestHeaderFieldsTooLarge: 431,\n  UnavailableForLegalReasons: 451,\n  InternalServerError: 500,\n  NotImplemented: 501,\n  BadGateway: 502,\n  ServiceUnavailable: 503,\n  GatewayTimeout: 504,\n  HttpVersionNotSupported: 505,\n  VariantAlsoNegotiates: 506,\n  InsufficientStorage: 507,\n  LoopDetected: 508,\n  NotExtended: 510,\n  NetworkAuthenticationRequired: 511,\n};\n\nObject.entries(HttpStatusCode).forEach(([key, value]) => {\n  HttpStatusCode[value] = key;\n});\n\nexport default HttpStatusCode;\n","'use strict';\n\nimport utils from './utils.js';\nimport bind from './helpers/bind.js';\nimport Axios from './core/Axios.js';\nimport mergeConfig from './core/mergeConfig.js';\nimport defaults from './defaults/index.js';\nimport formDataToJSON from './helpers/formDataToJSON.js';\nimport CanceledError from './cancel/CanceledError.js';\nimport CancelToken from './cancel/CancelToken.js';\nimport isCancel from './cancel/isCancel.js';\nimport {VERSION} from './env/data.js';\nimport toFormData from './helpers/toFormData.js';\nimport AxiosError from './core/AxiosError.js';\nimport spread from './helpers/spread.js';\nimport isAxiosError from './helpers/isAxiosError.js';\nimport AxiosHeaders from \"./core/AxiosHeaders.js\";\nimport adapters from './adapters/adapters.js';\nimport HttpStatusCode from './helpers/HttpStatusCode.js';\n\n/**\n * Create an instance of Axios\n *\n * @param {Object} defaultConfig The default config for the instance\n *\n * @returns {Axios} A new instance of Axios\n */\nfunction createInstance(defaultConfig) {\n  const context = new Axios(defaultConfig);\n  const instance = bind(Axios.prototype.request, context);\n\n  // Copy axios.prototype to instance\n  utils.extend(instance, Axios.prototype, context, {allOwnKeys: true});\n\n  // Copy context to instance\n  utils.extend(instance, context, null, {allOwnKeys: true});\n\n  // Factory for creating new instances\n  instance.create = function create(instanceConfig) {\n    return createInstance(mergeConfig(defaultConfig, instanceConfig));\n  };\n\n  return instance;\n}\n\n// Create the default instance to be exported\nconst axios = createInstance(defaults);\n\n// Expose Axios class to allow class inheritance\naxios.Axios = Axios;\n\n// Expose Cancel & CancelToken\naxios.CanceledError = CanceledError;\naxios.CancelToken = CancelToken;\naxios.isCancel = isCancel;\naxios.VERSION = VERSION;\naxios.toFormData = toFormData;\n\n// Expose AxiosError class\naxios.AxiosError = AxiosError;\n\n// alias for CanceledError for backward compatibility\naxios.Cancel = axios.CanceledError;\n\n// Expose all/spread\naxios.all = function all(promises) {\n  return Promise.all(promises);\n};\n\naxios.spread = spread;\n\n// Expose isAxiosError\naxios.isAxiosError = isAxiosError;\n\n// Expose mergeConfig\naxios.mergeConfig = mergeConfig;\n\naxios.AxiosHeaders = AxiosHeaders;\n\naxios.formToJSON = thing => formDataToJSON(utils.isHTMLForm(thing) ? new FormData(thing) : thing);\n\naxios.getAdapter = adapters.getAdapter;\n\naxios.HttpStatusCode = HttpStatusCode;\n\naxios.default = axios;\n\n// this module should only have a default export\nexport default axios\n","'use strict';\n\n/**\n * Syntactic sugar for invoking a function and expanding an array for arguments.\n *\n * Common use case would 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\ No newline at end of file
diff --git a/backend/node_modules/axios/dist/browser/axios.cjs b/backend/node_modules/axios/dist/browser/axios.cjs
new file mode 100644
index 0000000..3305d66
--- /dev/null
+++ b/backend/node_modules/axios/dist/browser/axios.cjs
@@ -0,0 +1,3722 @@
+// Axios v1.7.9 Copyright (c) 2024 Matt Zabriskie and contributors
+'use strict';
+
+function bind(fn, thisArg) {
+  return function wrap() {
+    return fn.apply(thisArg, arguments);
+  };
+}
+
+// utils is a library of generic helper functions non-specific to axios
+
+const {toString} = Object.prototype;
+const {getPrototypeOf} = Object;
+
+const kindOf = (cache => thing => {
+    const str = toString.call(thing);
+    return cache[str] || (cache[str] = str.slice(8, -1).toLowerCase());
+})(Object.create(null));
+
+const kindOfTest = (type) => {
+  type = type.toLowerCase();
+  return (thing) => kindOf(thing) === type
+};
+
+const typeOfTest = type => thing => typeof thing === type;
+
+/**
+ * Determine if a value is an Array
+ *
+ * @param {Object} val The value to test
+ *
+ * @returns {boolean} True if value is an Array, otherwise false
+ */
+const {isArray} = Array;
+
+/**
+ * Determine if a value is undefined
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if the value is undefined, otherwise false
+ */
+const isUndefined = typeOfTest('undefined');
+
+/**
+ * Determine if a value is a Buffer
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a Buffer, otherwise false
+ */
+function isBuffer(val) {
+  return val !== null && !isUndefined(val) && val.constructor !== null && !isUndefined(val.constructor)
+    && isFunction(val.constructor.isBuffer) && val.constructor.isBuffer(val);
+}
+
+/**
+ * Determine if a value is an ArrayBuffer
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is an ArrayBuffer, otherwise false
+ */
+const isArrayBuffer = kindOfTest('ArrayBuffer');
+
+
+/**
+ * Determine if a value is a view on an ArrayBuffer
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false
+ */
+function isArrayBufferView(val) {
+  let result;
+  if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) {
+    result = ArrayBuffer.isView(val);
+  } else {
+    result = (val) && (val.buffer) && (isArrayBuffer(val.buffer));
+  }
+  return result;
+}
+
+/**
+ * Determine if a value is a String
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a String, otherwise false
+ */
+const isString = typeOfTest('string');
+
+/**
+ * Determine if a value is a Function
+ *
+ * @param {*} val The value to test
+ * @returns {boolean} True if value is a Function, otherwise false
+ */
+const isFunction = typeOfTest('function');
+
+/**
+ * Determine if a value is a Number
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a Number, otherwise false
+ */
+const isNumber = typeOfTest('number');
+
+/**
+ * Determine if a value is an Object
+ *
+ * @param {*} thing The value to test
+ *
+ * @returns {boolean} True if value is an Object, otherwise false
+ */
+const isObject = (thing) => thing !== null && typeof thing === 'object';
+
+/**
+ * Determine if a value is a Boolean
+ *
+ * @param {*} thing The value to test
+ * @returns {boolean} True if value is a Boolean, otherwise false
+ */
+const isBoolean = thing => thing === true || thing === false;
+
+/**
+ * Determine if a value is a plain Object
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a plain Object, otherwise false
+ */
+const isPlainObject = (val) => {
+  if (kindOf(val) !== 'object') {
+    return false;
+  }
+
+  const prototype = getPrototypeOf(val);
+  return (prototype === null || prototype === Object.prototype || Object.getPrototypeOf(prototype) === null) && !(Symbol.toStringTag in val) && !(Symbol.iterator in val);
+};
+
+/**
+ * Determine if a value is a Date
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a Date, otherwise false
+ */
+const isDate = kindOfTest('Date');
+
+/**
+ * Determine if a value is a File
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a File, otherwise false
+ */
+const isFile = kindOfTest('File');
+
+/**
+ * Determine if a value is a Blob
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a Blob, otherwise false
+ */
+const isBlob = kindOfTest('Blob');
+
+/**
+ * Determine if a value is a FileList
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a File, otherwise false
+ */
+const isFileList = kindOfTest('FileList');
+
+/**
+ * Determine if a value is a Stream
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a Stream, otherwise false
+ */
+const isStream = (val) => isObject(val) && isFunction(val.pipe);
+
+/**
+ * Determine if a value is a FormData
+ *
+ * @param {*} thing The value to test
+ *
+ * @returns {boolean} True if value is an FormData, otherwise false
+ */
+const isFormData = (thing) => {
+  let kind;
+  return thing && (
+    (typeof FormData === 'function' && thing instanceof FormData) || (
+      isFunction(thing.append) && (
+        (kind = kindOf(thing)) === 'formdata' ||
+        // detect form-data instance
+        (kind === 'object' && isFunction(thing.toString) && thing.toString() === '[object FormData]')
+      )
+    )
+  )
+};
+
+/**
+ * Determine if a value is a URLSearchParams object
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a URLSearchParams object, otherwise false
+ */
+const isURLSearchParams = kindOfTest('URLSearchParams');
+
+const [isReadableStream, isRequest, isResponse, isHeaders] = ['ReadableStream', 'Request', 'Response', 'Headers'].map(kindOfTest);
+
+/**
+ * Trim excess whitespace off the beginning and end of a string
+ *
+ * @param {String} str The String to trim
+ *
+ * @returns {String} The String freed of excess whitespace
+ */
+const trim = (str) => str.trim ?
+  str.trim() : str.replace(/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, '');
+
+/**
+ * Iterate over an Array or an Object invoking a function for each item.
+ *
+ * If `obj` is an Array callback will be called passing
+ * the value, index, and complete array for each item.
+ *
+ * If 'obj' is an Object callback will be called passing
+ * the value, key, and complete object for each property.
+ *
+ * @param {Object|Array} obj The object to iterate
+ * @param {Function} fn The callback to invoke for each item
+ *
+ * @param {Boolean} [allOwnKeys = false]
+ * @returns {any}
+ */
+function forEach(obj, fn, {allOwnKeys = false} = {}) {
+  // Don't bother if no value provided
+  if (obj === null || typeof obj === 'undefined') {
+    return;
+  }
+
+  let i;
+  let l;
+
+  // Force an array if not already something iterable
+  if (typeof obj !== 'object') {
+    /*eslint no-param-reassign:0*/
+    obj = [obj];
+  }
+
+  if (isArray(obj)) {
+    // Iterate over array values
+    for (i = 0, l = obj.length; i < l; i++) {
+      fn.call(null, obj[i], i, obj);
+    }
+  } else {
+    // Iterate over object keys
+    const keys = allOwnKeys ? Object.getOwnPropertyNames(obj) : Object.keys(obj);
+    const len = keys.length;
+    let key;
+
+    for (i = 0; i < len; i++) {
+      key = keys[i];
+      fn.call(null, obj[key], key, obj);
+    }
+  }
+}
+
+function findKey(obj, key) {
+  key = key.toLowerCase();
+  const keys = Object.keys(obj);
+  let i = keys.length;
+  let _key;
+  while (i-- > 0) {
+    _key = keys[i];
+    if (key === _key.toLowerCase()) {
+      return _key;
+    }
+  }
+  return null;
+}
+
+const _global = (() => {
+  /*eslint no-undef:0*/
+  if (typeof globalThis !== "undefined") return globalThis;
+  return typeof self !== "undefined" ? self : (typeof window !== 'undefined' ? window : global)
+})();
+
+const isContextDefined = (context) => !isUndefined(context) && context !== _global;
+
+/**
+ * Accepts varargs expecting each argument to be an object, then
+ * immutably merges the properties of each object and returns result.
+ *
+ * When multiple objects contain the same key the later object in
+ * the arguments list will take precedence.
+ *
+ * Example:
+ *
+ * ```js
+ * var result = merge({foo: 123}, {foo: 456});
+ * console.log(result.foo); // outputs 456
+ * ```
+ *
+ * @param {Object} obj1 Object to merge
+ *
+ * @returns {Object} Result of all merge properties
+ */
+function merge(/* obj1, obj2, obj3, ... */) {
+  const {caseless} = isContextDefined(this) && this || {};
+  const result = {};
+  const assignValue = (val, key) => {
+    const targetKey = caseless && findKey(result, key) || key;
+    if (isPlainObject(result[targetKey]) && isPlainObject(val)) {
+      result[targetKey] = merge(result[targetKey], val);
+    } else if (isPlainObject(val)) {
+      result[targetKey] = merge({}, val);
+    } else if (isArray(val)) {
+      result[targetKey] = val.slice();
+    } else {
+      result[targetKey] = val;
+    }
+  };
+
+  for (let i = 0, l = arguments.length; i < l; i++) {
+    arguments[i] && forEach(arguments[i], assignValue);
+  }
+  return result;
+}
+
+/**
+ * Extends object a by mutably adding to it the properties of object b.
+ *
+ * @param {Object} a The object to be extended
+ * @param {Object} b The object to copy properties from
+ * @param {Object} thisArg The object to bind function to
+ *
+ * @param {Boolean} [allOwnKeys]
+ * @returns {Object} The resulting value of object a
+ */
+const extend = (a, b, thisArg, {allOwnKeys}= {}) => {
+  forEach(b, (val, key) => {
+    if (thisArg && isFunction(val)) {
+      a[key] = bind(val, thisArg);
+    } else {
+      a[key] = val;
+    }
+  }, {allOwnKeys});
+  return a;
+};
+
+/**
+ * Remove byte order marker. This catches EF BB BF (the UTF-8 BOM)
+ *
+ * @param {string} content with BOM
+ *
+ * @returns {string} content value without BOM
+ */
+const stripBOM = (content) => {
+  if (content.charCodeAt(0) === 0xFEFF) {
+    content = content.slice(1);
+  }
+  return content;
+};
+
+/**
+ * Inherit the prototype methods from one constructor into another
+ * @param {function} constructor
+ * @param {function} superConstructor
+ * @param {object} [props]
+ * @param {object} [descriptors]
+ *
+ * @returns {void}
+ */
+const inherits = (constructor, superConstructor, props, descriptors) => {
+  constructor.prototype = Object.create(superConstructor.prototype, descriptors);
+  constructor.prototype.constructor = constructor;
+  Object.defineProperty(constructor, 'super', {
+    value: superConstructor.prototype
+  });
+  props && Object.assign(constructor.prototype, props);
+};
+
+/**
+ * Resolve object with deep prototype chain to a flat object
+ * @param {Object} sourceObj source object
+ * @param {Object} [destObj]
+ * @param {Function|Boolean} [filter]
+ * @param {Function} [propFilter]
+ *
+ * @returns {Object}
+ */
+const toFlatObject = (sourceObj, destObj, filter, propFilter) => {
+  let props;
+  let i;
+  let prop;
+  const merged = {};
+
+  destObj = destObj || {};
+  // eslint-disable-next-line no-eq-null,eqeqeq
+  if (sourceObj == null) return destObj;
+
+  do {
+    props = Object.getOwnPropertyNames(sourceObj);
+    i = props.length;
+    while (i-- > 0) {
+      prop = props[i];
+      if ((!propFilter || propFilter(prop, sourceObj, destObj)) && !merged[prop]) {
+        destObj[prop] = sourceObj[prop];
+        merged[prop] = true;
+      }
+    }
+    sourceObj = filter !== false && getPrototypeOf(sourceObj);
+  } while (sourceObj && (!filter || filter(sourceObj, destObj)) && sourceObj !== Object.prototype);
+
+  return destObj;
+};
+
+/**
+ * Determines whether a string ends with the characters of a specified string
+ *
+ * @param {String} str
+ * @param {String} searchString
+ * @param {Number} [position= 0]
+ *
+ * @returns {boolean}
+ */
+const endsWith = (str, searchString, position) => {
+  str = String(str);
+  if (position === undefined || position > str.length) {
+    position = str.length;
+  }
+  position -= searchString.length;
+  const lastIndex = str.indexOf(searchString, position);
+  return lastIndex !== -1 && lastIndex === position;
+};
+
+
+/**
+ * Returns new array from array like object or null if failed
+ *
+ * @param {*} [thing]
+ *
+ * @returns {?Array}
+ */
+const toArray = (thing) => {
+  if (!thing) return null;
+  if (isArray(thing)) return thing;
+  let i = thing.length;
+  if (!isNumber(i)) return null;
+  const arr = new Array(i);
+  while (i-- > 0) {
+    arr[i] = thing[i];
+  }
+  return arr;
+};
+
+/**
+ * Checking if the Uint8Array exists and if it does, it returns a function that checks if the
+ * thing passed in is an instance of Uint8Array
+ *
+ * @param {TypedArray}
+ *
+ * @returns {Array}
+ */
+// eslint-disable-next-line func-names
+const isTypedArray = (TypedArray => {
+  // eslint-disable-next-line func-names
+  return thing => {
+    return TypedArray && thing instanceof TypedArray;
+  };
+})(typeof Uint8Array !== 'undefined' && getPrototypeOf(Uint8Array));
+
+/**
+ * For each entry in the object, call the function with the key and value.
+ *
+ * @param {Object<any, any>} obj - The object to iterate over.
+ * @param {Function} fn - The function to call for each entry.
+ *
+ * @returns {void}
+ */
+const forEachEntry = (obj, fn) => {
+  const generator = obj && obj[Symbol.iterator];
+
+  const iterator = generator.call(obj);
+
+  let result;
+
+  while ((result = iterator.next()) && !result.done) {
+    const pair = result.value;
+    fn.call(obj, pair[0], pair[1]);
+  }
+};
+
+/**
+ * It takes a regular expression and a string, and returns an array of all the matches
+ *
+ * @param {string} regExp - The regular expression to match against.
+ * @param {string} str - The string to search.
+ *
+ * @returns {Array<boolean>}
+ */
+const matchAll = (regExp, str) => {
+  let matches;
+  const arr = [];
+
+  while ((matches = regExp.exec(str)) !== null) {
+    arr.push(matches);
+  }
+
+  return arr;
+};
+
+/* Checking if the kindOfTest function returns true when passed an HTMLFormElement. */
+const isHTMLForm = kindOfTest('HTMLFormElement');
+
+const toCamelCase = str => {
+  return str.toLowerCase().replace(/[-_\s]([a-z\d])(\w*)/g,
+    function replacer(m, p1, p2) {
+      return p1.toUpperCase() + p2;
+    }
+  );
+};
+
+/* Creating a function that will check if an object has a property. */
+const hasOwnProperty = (({hasOwnProperty}) => (obj, prop) => hasOwnProperty.call(obj, prop))(Object.prototype);
+
+/**
+ * Determine if a value is a RegExp object
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a RegExp object, otherwise false
+ */
+const isRegExp = kindOfTest('RegExp');
+
+const reduceDescriptors = (obj, reducer) => {
+  const descriptors = Object.getOwnPropertyDescriptors(obj);
+  const reducedDescriptors = {};
+
+  forEach(descriptors, (descriptor, name) => {
+    let ret;
+    if ((ret = reducer(descriptor, name, obj)) !== false) {
+      reducedDescriptors[name] = ret || descriptor;
+    }
+  });
+
+  Object.defineProperties(obj, reducedDescriptors);
+};
+
+/**
+ * Makes all methods read-only
+ * @param {Object} obj
+ */
+
+const freezeMethods = (obj) => {
+  reduceDescriptors(obj, (descriptor, name) => {
+    // skip restricted props in strict mode
+    if (isFunction(obj) && ['arguments', 'caller', 'callee'].indexOf(name) !== -1) {
+      return false;
+    }
+
+    const value = obj[name];
+
+    if (!isFunction(value)) return;
+
+    descriptor.enumerable = false;
+
+    if ('writable' in descriptor) {
+      descriptor.writable = false;
+      return;
+    }
+
+    if (!descriptor.set) {
+      descriptor.set = () => {
+        throw Error('Can not rewrite read-only method \'' + name + '\'');
+      };
+    }
+  });
+};
+
+const toObjectSet = (arrayOrString, delimiter) => {
+  const obj = {};
+
+  const define = (arr) => {
+    arr.forEach(value => {
+      obj[value] = true;
+    });
+  };
+
+  isArray(arrayOrString) ? define(arrayOrString) : define(String(arrayOrString).split(delimiter));
+
+  return obj;
+};
+
+const noop = () => {};
+
+const toFiniteNumber = (value, defaultValue) => {
+  return value != null && Number.isFinite(value = +value) ? value : defaultValue;
+};
+
+const ALPHA = 'abcdefghijklmnopqrstuvwxyz';
+
+const DIGIT = '0123456789';
+
+const ALPHABET = {
+  DIGIT,
+  ALPHA,
+  ALPHA_DIGIT: ALPHA + ALPHA.toUpperCase() + DIGIT
+};
+
+const generateString = (size = 16, alphabet = ALPHABET.ALPHA_DIGIT) => {
+  let str = '';
+  const {length} = alphabet;
+  while (size--) {
+    str += alphabet[Math.random() * length|0];
+  }
+
+  return str;
+};
+
+/**
+ * If the thing is a FormData object, return true, otherwise return false.
+ *
+ * @param {unknown} thing - The thing to check.
+ *
+ * @returns {boolean}
+ */
+function isSpecCompliantForm(thing) {
+  return !!(thing && isFunction(thing.append) && thing[Symbol.toStringTag] === 'FormData' && thing[Symbol.iterator]);
+}
+
+const toJSONObject = (obj) => {
+  const stack = new Array(10);
+
+  const visit = (source, i) => {
+
+    if (isObject(source)) {
+      if (stack.indexOf(source) >= 0) {
+        return;
+      }
+
+      if(!('toJSON' in source)) {
+        stack[i] = source;
+        const target = isArray(source) ? [] : {};
+
+        forEach(source, (value, key) => {
+          const reducedValue = visit(value, i + 1);
+          !isUndefined(reducedValue) && (target[key] = reducedValue);
+        });
+
+        stack[i] = undefined;
+
+        return target;
+      }
+    }
+
+    return source;
+  };
+
+  return visit(obj, 0);
+};
+
+const isAsyncFn = kindOfTest('AsyncFunction');
+
+const isThenable = (thing) =>
+  thing && (isObject(thing) || isFunction(thing)) && isFunction(thing.then) && isFunction(thing.catch);
+
+// original code
+// https://github.com/DigitalBrainJS/AxiosPromise/blob/16deab13710ec09779922131f3fa5954320f83ab/lib/utils.js#L11-L34
+
+const _setImmediate = ((setImmediateSupported, postMessageSupported) => {
+  if (setImmediateSupported) {
+    return setImmediate;
+  }
+
+  return postMessageSupported ? ((token, callbacks) => {
+    _global.addEventListener("message", ({source, data}) => {
+      if (source === _global && data === token) {
+        callbacks.length && callbacks.shift()();
+      }
+    }, false);
+
+    return (cb) => {
+      callbacks.push(cb);
+      _global.postMessage(token, "*");
+    }
+  })(`axios@${Math.random()}`, []) : (cb) => setTimeout(cb);
+})(
+  typeof setImmediate === 'function',
+  isFunction(_global.postMessage)
+);
+
+const asap = typeof queueMicrotask !== 'undefined' ?
+  queueMicrotask.bind(_global) : ( typeof process !== 'undefined' && process.nextTick || _setImmediate);
+
+// *********************
+
+var utils$1 = {
+  isArray,
+  isArrayBuffer,
+  isBuffer,
+  isFormData,
+  isArrayBufferView,
+  isString,
+  isNumber,
+  isBoolean,
+  isObject,
+  isPlainObject,
+  isReadableStream,
+  isRequest,
+  isResponse,
+  isHeaders,
+  isUndefined,
+  isDate,
+  isFile,
+  isBlob,
+  isRegExp,
+  isFunction,
+  isStream,
+  isURLSearchParams,
+  isTypedArray,
+  isFileList,
+  forEach,
+  merge,
+  extend,
+  trim,
+  stripBOM,
+  inherits,
+  toFlatObject,
+  kindOf,
+  kindOfTest,
+  endsWith,
+  toArray,
+  forEachEntry,
+  matchAll,
+  isHTMLForm,
+  hasOwnProperty,
+  hasOwnProp: hasOwnProperty, // an alias to avoid ESLint no-prototype-builtins detection
+  reduceDescriptors,
+  freezeMethods,
+  toObjectSet,
+  toCamelCase,
+  noop,
+  toFiniteNumber,
+  findKey,
+  global: _global,
+  isContextDefined,
+  ALPHABET,
+  generateString,
+  isSpecCompliantForm,
+  toJSONObject,
+  isAsyncFn,
+  isThenable,
+  setImmediate: _setImmediate,
+  asap
+};
+
+/**
+ * Create an Error with the specified message, config, error code, request and response.
+ *
+ * @param {string} message The error message.
+ * @param {string} [code] The error code (for example, 'ECONNABORTED').
+ * @param {Object} [config] The config.
+ * @param {Object} [request] The request.
+ * @param {Object} [response] The response.
+ *
+ * @returns {Error} The created error.
+ */
+function AxiosError(message, code, config, request, response) {
+  Error.call(this);
+
+  if (Error.captureStackTrace) {
+    Error.captureStackTrace(this, this.constructor);
+  } else {
+    this.stack = (new Error()).stack;
+  }
+
+  this.message = message;
+  this.name = 'AxiosError';
+  code && (this.code = code);
+  config && (this.config = config);
+  request && (this.request = request);
+  if (response) {
+    this.response = response;
+    this.status = response.status ? response.status : null;
+  }
+}
+
+utils$1.inherits(AxiosError, Error, {
+  toJSON: function toJSON() {
+    return {
+      // Standard
+      message: this.message,
+      name: this.name,
+      // Microsoft
+      description: this.description,
+      number: this.number,
+      // Mozilla
+      fileName: this.fileName,
+      lineNumber: this.lineNumber,
+      columnNumber: this.columnNumber,
+      stack: this.stack,
+      // Axios
+      config: utils$1.toJSONObject(this.config),
+      code: this.code,
+      status: this.status
+    };
+  }
+});
+
+const prototype$1 = AxiosError.prototype;
+const descriptors = {};
+
+[
+  'ERR_BAD_OPTION_VALUE',
+  'ERR_BAD_OPTION',
+  'ECONNABORTED',
+  'ETIMEDOUT',
+  'ERR_NETWORK',
+  'ERR_FR_TOO_MANY_REDIRECTS',
+  'ERR_DEPRECATED',
+  'ERR_BAD_RESPONSE',
+  'ERR_BAD_REQUEST',
+  'ERR_CANCELED',
+  'ERR_NOT_SUPPORT',
+  'ERR_INVALID_URL'
+// eslint-disable-next-line func-names
+].forEach(code => {
+  descriptors[code] = {value: code};
+});
+
+Object.defineProperties(AxiosError, descriptors);
+Object.defineProperty(prototype$1, 'isAxiosError', {value: true});
+
+// eslint-disable-next-line func-names
+AxiosError.from = (error, code, config, request, response, customProps) => {
+  const axiosError = Object.create(prototype$1);
+
+  utils$1.toFlatObject(error, axiosError, function filter(obj) {
+    return obj !== Error.prototype;
+  }, prop => {
+    return prop !== 'isAxiosError';
+  });
+
+  AxiosError.call(axiosError, error.message, code, config, request, response);
+
+  axiosError.cause = error;
+
+  axiosError.name = error.name;
+
+  customProps && Object.assign(axiosError, customProps);
+
+  return axiosError;
+};
+
+// eslint-disable-next-line strict
+var httpAdapter = null;
+
+/**
+ * Determines if the given thing is a array or js object.
+ *
+ * @param {string} thing - The object or array to be visited.
+ *
+ * @returns {boolean}
+ */
+function isVisitable(thing) {
+  return utils$1.isPlainObject(thing) || utils$1.isArray(thing);
+}
+
+/**
+ * It removes the brackets from the end of a string
+ *
+ * @param {string} key - The key of the parameter.
+ *
+ * @returns {string} the key without the brackets.
+ */
+function removeBrackets(key) {
+  return utils$1.endsWith(key, '[]') ? key.slice(0, -2) : key;
+}
+
+/**
+ * It takes a path, a key, and a boolean, and returns a string
+ *
+ * @param {string} path - The path to the current key.
+ * @param {string} key - The key of the current object being iterated over.
+ * @param {string} dots - If true, the key will be rendered with dots instead of brackets.
+ *
+ * @returns {string} The path to the current key.
+ */
+function renderKey(path, key, dots) {
+  if (!path) return key;
+  return path.concat(key).map(function each(token, i) {
+    // eslint-disable-next-line no-param-reassign
+    token = removeBrackets(token);
+    return !dots && i ? '[' + token + ']' : token;
+  }).join(dots ? '.' : '');
+}
+
+/**
+ * If the array is an array and none of its elements are visitable, then it's a flat array.
+ *
+ * @param {Array<any>} arr - The array to check
+ *
+ * @returns {boolean}
+ */
+function isFlatArray(arr) {
+  return utils$1.isArray(arr) && !arr.some(isVisitable);
+}
+
+const predicates = utils$1.toFlatObject(utils$1, {}, null, function filter(prop) {
+  return /^is[A-Z]/.test(prop);
+});
+
+/**
+ * Convert a data object to FormData
+ *
+ * @param {Object} obj
+ * @param {?Object} [formData]
+ * @param {?Object} [options]
+ * @param {Function} [options.visitor]
+ * @param {Boolean} [options.metaTokens = true]
+ * @param {Boolean} [options.dots = false]
+ * @param {?Boolean} [options.indexes = false]
+ *
+ * @returns {Object}
+ **/
+
+/**
+ * It converts an object into a FormData object
+ *
+ * @param {Object<any, any>} obj - The object to convert to form data.
+ * @param {string} formData - The FormData object to append to.
+ * @param {Object<string, any>} options
+ *
+ * @returns
+ */
+function toFormData(obj, formData, options) {
+  if (!utils$1.isObject(obj)) {
+    throw new TypeError('target must be an object');
+  }
+
+  // eslint-disable-next-line no-param-reassign
+  formData = formData || new (FormData)();
+
+  // eslint-disable-next-line no-param-reassign
+  options = utils$1.toFlatObject(options, {
+    metaTokens: true,
+    dots: false,
+    indexes: false
+  }, false, function defined(option, source) {
+    // eslint-disable-next-line no-eq-null,eqeqeq
+    return !utils$1.isUndefined(source[option]);
+  });
+
+  const metaTokens = options.metaTokens;
+  // eslint-disable-next-line no-use-before-define
+  const visitor = options.visitor || defaultVisitor;
+  const dots = options.dots;
+  const indexes = options.indexes;
+  const _Blob = options.Blob || typeof Blob !== 'undefined' && Blob;
+  const useBlob = _Blob && utils$1.isSpecCompliantForm(formData);
+
+  if (!utils$1.isFunction(visitor)) {
+    throw new TypeError('visitor must be a function');
+  }
+
+  function convertValue(value) {
+    if (value === null) return '';
+
+    if (utils$1.isDate(value)) {
+      return value.toISOString();
+    }
+
+    if (!useBlob && utils$1.isBlob(value)) {
+      throw new AxiosError('Blob is not supported. Use a Buffer instead.');
+    }
+
+    if (utils$1.isArrayBuffer(value) || utils$1.isTypedArray(value)) {
+      return useBlob && typeof Blob === 'function' ? new Blob([value]) : Buffer.from(value);
+    }
+
+    return value;
+  }
+
+  /**
+   * Default visitor.
+   *
+   * @param {*} value
+   * @param {String|Number} key
+   * @param {Array<String|Number>} path
+   * @this {FormData}
+   *
+   * @returns {boolean} return true to visit the each prop of the value recursively
+   */
+  function defaultVisitor(value, key, path) {
+    let arr = value;
+
+    if (value && !path && typeof value === 'object') {
+      if (utils$1.endsWith(key, '{}')) {
+        // eslint-disable-next-line no-param-reassign
+        key = metaTokens ? key : key.slice(0, -2);
+        // eslint-disable-next-line no-param-reassign
+        value = JSON.stringify(value);
+      } else if (
+        (utils$1.isArray(value) && isFlatArray(value)) ||
+        ((utils$1.isFileList(value) || utils$1.endsWith(key, '[]')) && (arr = utils$1.toArray(value))
+        )) {
+        // eslint-disable-next-line no-param-reassign
+        key = removeBrackets(key);
+
+        arr.forEach(function each(el, index) {
+          !(utils$1.isUndefined(el) || el === null) && formData.append(
+            // eslint-disable-next-line no-nested-ternary
+            indexes === true ? renderKey([key], index, dots) : (indexes === null ? key : key + '[]'),
+            convertValue(el)
+          );
+        });
+        return false;
+      }
+    }
+
+    if (isVisitable(value)) {
+      return true;
+    }
+
+    formData.append(renderKey(path, key, dots), convertValue(value));
+
+    return false;
+  }
+
+  const stack = [];
+
+  const exposedHelpers = Object.assign(predicates, {
+    defaultVisitor,
+    convertValue,
+    isVisitable
+  });
+
+  function build(value, path) {
+    if (utils$1.isUndefined(value)) return;
+
+    if (stack.indexOf(value) !== -1) {
+      throw Error('Circular reference detected in ' + path.join('.'));
+    }
+
+    stack.push(value);
+
+    utils$1.forEach(value, function each(el, key) {
+      const result = !(utils$1.isUndefined(el) || el === null) && visitor.call(
+        formData, el, utils$1.isString(key) ? key.trim() : key, path, exposedHelpers
+      );
+
+      if (result === true) {
+        build(el, path ? path.concat(key) : [key]);
+      }
+    });
+
+    stack.pop();
+  }
+
+  if (!utils$1.isObject(obj)) {
+    throw new TypeError('data must be an object');
+  }
+
+  build(obj);
+
+  return formData;
+}
+
+/**
+ * It encodes a string by replacing all characters that are not in the unreserved set with
+ * their percent-encoded equivalents
+ *
+ * @param {string} str - The string to encode.
+ *
+ * @returns {string} The encoded string.
+ */
+function encode$1(str) {
+  const charMap = {
+    '!': '%21',
+    "'": '%27',
+    '(': '%28',
+    ')': '%29',
+    '~': '%7E',
+    '%20': '+',
+    '%00': '\x00'
+  };
+  return encodeURIComponent(str).replace(/[!'()~]|%20|%00/g, function replacer(match) {
+    return charMap[match];
+  });
+}
+
+/**
+ * It takes a params object and converts it to a FormData object
+ *
+ * @param {Object<string, any>} params - The parameters to be converted to a FormData object.
+ * @param {Object<string, any>} options - The options object passed to the Axios constructor.
+ *
+ * @returns {void}
+ */
+function AxiosURLSearchParams(params, options) {
+  this._pairs = [];
+
+  params && toFormData(params, this, options);
+}
+
+const prototype = AxiosURLSearchParams.prototype;
+
+prototype.append = function append(name, value) {
+  this._pairs.push([name, value]);
+};
+
+prototype.toString = function toString(encoder) {
+  const _encode = encoder ? function(value) {
+    return encoder.call(this, value, encode$1);
+  } : encode$1;
+
+  return this._pairs.map(function each(pair) {
+    return _encode(pair[0]) + '=' + _encode(pair[1]);
+  }, '').join('&');
+};
+
+/**
+ * It replaces all instances of the characters `:`, `$`, `,`, `+`, `[`, and `]` with their
+ * URI encoded counterparts
+ *
+ * @param {string} val The value to be encoded.
+ *
+ * @returns {string} The encoded value.
+ */
+function encode(val) {
+  return encodeURIComponent(val).
+    replace(/%3A/gi, ':').
+    replace(/%24/g, '$').
+    replace(/%2C/gi, ',').
+    replace(/%20/g, '+').
+    replace(/%5B/gi, '[').
+    replace(/%5D/gi, ']');
+}
+
+/**
+ * Build a URL by appending params to the end
+ *
+ * @param {string} url The base of the url (e.g., http://www.google.com)
+ * @param {object} [params] The params to be appended
+ * @param {?(object|Function)} options
+ *
+ * @returns {string} The formatted url
+ */
+function buildURL(url, params, options) {
+  /*eslint no-param-reassign:0*/
+  if (!params) {
+    return url;
+  }
+  
+  const _encode = options && options.encode || encode;
+
+  if (utils$1.isFunction(options)) {
+    options = {
+      serialize: options
+    };
+  } 
+
+  const serializeFn = options && options.serialize;
+
+  let serializedParams;
+
+  if (serializeFn) {
+    serializedParams = serializeFn(params, options);
+  } else {
+    serializedParams = utils$1.isURLSearchParams(params) ?
+      params.toString() :
+      new AxiosURLSearchParams(params, options).toString(_encode);
+  }
+
+  if (serializedParams) {
+    const hashmarkIndex = url.indexOf("#");
+
+    if (hashmarkIndex !== -1) {
+      url = url.slice(0, hashmarkIndex);
+    }
+    url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;
+  }
+
+  return url;
+}
+
+class InterceptorManager {
+  constructor() {
+    this.handlers = [];
+  }
+
+  /**
+   * Add a new interceptor to the stack
+   *
+   * @param {Function} fulfilled The function to handle `then` for a `Promise`
+   * @param {Function} rejected The function to handle `reject` for a `Promise`
+   *
+   * @return {Number} An ID used to remove interceptor later
+   */
+  use(fulfilled, rejected, options) {
+    this.handlers.push({
+      fulfilled,
+      rejected,
+      synchronous: options ? options.synchronous : false,
+      runWhen: options ? options.runWhen : null
+    });
+    return this.handlers.length - 1;
+  }
+
+  /**
+   * Remove an interceptor from the stack
+   *
+   * @param {Number} id The ID that was returned by `use`
+   *
+   * @returns {Boolean} `true` if the interceptor was removed, `false` otherwise
+   */
+  eject(id) {
+    if (this.handlers[id]) {
+      this.handlers[id] = null;
+    }
+  }
+
+  /**
+   * Clear all interceptors from the stack
+   *
+   * @returns {void}
+   */
+  clear() {
+    if (this.handlers) {
+      this.handlers = [];
+    }
+  }
+
+  /**
+   * Iterate over all the registered interceptors
+   *
+   * This method is particularly useful for skipping over any
+   * interceptors that may have become `null` calling `eject`.
+   *
+   * @param {Function} fn The function to call for each interceptor
+   *
+   * @returns {void}
+   */
+  forEach(fn) {
+    utils$1.forEach(this.handlers, function forEachHandler(h) {
+      if (h !== null) {
+        fn(h);
+      }
+    });
+  }
+}
+
+var InterceptorManager$1 = InterceptorManager;
+
+var transitionalDefaults = {
+  silentJSONParsing: true,
+  forcedJSONParsing: true,
+  clarifyTimeoutError: false
+};
+
+var URLSearchParams$1 = typeof URLSearchParams !== 'undefined' ? URLSearchParams : AxiosURLSearchParams;
+
+var FormData$1 = typeof FormData !== 'undefined' ? FormData : null;
+
+var Blob$1 = typeof Blob !== 'undefined' ? Blob : null;
+
+var platform$1 = {
+  isBrowser: true,
+  classes: {
+    URLSearchParams: URLSearchParams$1,
+    FormData: FormData$1,
+    Blob: Blob$1
+  },
+  protocols: ['http', 'https', 'file', 'blob', 'url', 'data']
+};
+
+const hasBrowserEnv = typeof window !== 'undefined' && typeof document !== 'undefined';
+
+const _navigator = typeof navigator === 'object' && navigator || undefined;
+
+/**
+ * Determine if we're running in a standard browser environment
+ *
+ * This allows axios to run in a web worker, and react-native.
+ * Both environments support XMLHttpRequest, but not fully standard globals.
+ *
+ * web workers:
+ *  typeof window -> undefined
+ *  typeof document -> undefined
+ *
+ * react-native:
+ *  navigator.product -> 'ReactNative'
+ * nativescript
+ *  navigator.product -> 'NativeScript' or 'NS'
+ *
+ * @returns {boolean}
+ */
+const hasStandardBrowserEnv = hasBrowserEnv &&
+  (!_navigator || ['ReactNative', 'NativeScript', 'NS'].indexOf(_navigator.product) < 0);
+
+/**
+ * Determine if we're running in a standard browser webWorker environment
+ *
+ * Although the `isStandardBrowserEnv` method indicates that
+ * `allows axios to run in a web worker`, the WebWorker will still be
+ * filtered out due to its judgment standard
+ * `typeof window !== 'undefined' && typeof document !== 'undefined'`.
+ * This leads to a problem when axios post `FormData` in webWorker
+ */
+const hasStandardBrowserWebWorkerEnv = (() => {
+  return (
+    typeof WorkerGlobalScope !== 'undefined' &&
+    // eslint-disable-next-line no-undef
+    self instanceof WorkerGlobalScope &&
+    typeof self.importScripts === 'function'
+  );
+})();
+
+const origin = hasBrowserEnv && window.location.href || 'http://localhost';
+
+var utils = /*#__PURE__*/Object.freeze({
+  __proto__: null,
+  hasBrowserEnv: hasBrowserEnv,
+  hasStandardBrowserWebWorkerEnv: hasStandardBrowserWebWorkerEnv,
+  hasStandardBrowserEnv: hasStandardBrowserEnv,
+  navigator: _navigator,
+  origin: origin
+});
+
+var platform = {
+  ...utils,
+  ...platform$1
+};
+
+function toURLEncodedForm(data, options) {
+  return toFormData(data, new platform.classes.URLSearchParams(), Object.assign({
+    visitor: function(value, key, path, helpers) {
+      if (platform.isNode && utils$1.isBuffer(value)) {
+        this.append(key, value.toString('base64'));
+        return false;
+      }
+
+      return helpers.defaultVisitor.apply(this, arguments);
+    }
+  }, options));
+}
+
+/**
+ * It takes a string like `foo[x][y][z]` and returns an array like `['foo', 'x', 'y', 'z']
+ *
+ * @param {string} name - The name of the property to get.
+ *
+ * @returns An array of strings.
+ */
+function parsePropPath(name) {
+  // foo[x][y][z]
+  // foo.x.y.z
+  // foo-x-y-z
+  // foo x y z
+  return utils$1.matchAll(/\w+|\[(\w*)]/g, name).map(match => {
+    return match[0] === '[]' ? '' : match[1] || match[0];
+  });
+}
+
+/**
+ * Convert an array to an object.
+ *
+ * @param {Array<any>} arr - The array to convert to an object.
+ *
+ * @returns An object with the same keys and values as the array.
+ */
+function arrayToObject(arr) {
+  const obj = {};
+  const keys = Object.keys(arr);
+  let i;
+  const len = keys.length;
+  let key;
+  for (i = 0; i < len; i++) {
+    key = keys[i];
+    obj[key] = arr[key];
+  }
+  return obj;
+}
+
+/**
+ * It takes a FormData object and returns a JavaScript object
+ *
+ * @param {string} formData The FormData object to convert to JSON.
+ *
+ * @returns {Object<string, any> | null} The converted object.
+ */
+function formDataToJSON(formData) {
+  function buildPath(path, value, target, index) {
+    let name = path[index++];
+
+    if (name === '__proto__') return true;
+
+    const isNumericKey = Number.isFinite(+name);
+    const isLast = index >= path.length;
+    name = !name && utils$1.isArray(target) ? target.length : name;
+
+    if (isLast) {
+      if (utils$1.hasOwnProp(target, name)) {
+        target[name] = [target[name], value];
+      } else {
+        target[name] = value;
+      }
+
+      return !isNumericKey;
+    }
+
+    if (!target[name] || !utils$1.isObject(target[name])) {
+      target[name] = [];
+    }
+
+    const result = buildPath(path, value, target[name], index);
+
+    if (result && utils$1.isArray(target[name])) {
+      target[name] = arrayToObject(target[name]);
+    }
+
+    return !isNumericKey;
+  }
+
+  if (utils$1.isFormData(formData) && utils$1.isFunction(formData.entries)) {
+    const obj = {};
+
+    utils$1.forEachEntry(formData, (name, value) => {
+      buildPath(parsePropPath(name), value, obj, 0);
+    });
+
+    return obj;
+  }
+
+  return null;
+}
+
+/**
+ * It takes a string, tries to parse it, and if it fails, it returns the stringified version
+ * of the input
+ *
+ * @param {any} rawValue - The value to be stringified.
+ * @param {Function} parser - A function that parses a string into a JavaScript object.
+ * @param {Function} encoder - A function that takes a value and returns a string.
+ *
+ * @returns {string} A stringified version of the rawValue.
+ */
+function stringifySafely(rawValue, parser, encoder) {
+  if (utils$1.isString(rawValue)) {
+    try {
+      (parser || JSON.parse)(rawValue);
+      return utils$1.trim(rawValue);
+    } catch (e) {
+      if (e.name !== 'SyntaxError') {
+        throw e;
+      }
+    }
+  }
+
+  return (encoder || JSON.stringify)(rawValue);
+}
+
+const defaults = {
+
+  transitional: transitionalDefaults,
+
+  adapter: ['xhr', 'http', 'fetch'],
+
+  transformRequest: [function transformRequest(data, headers) {
+    const contentType = headers.getContentType() || '';
+    const hasJSONContentType = contentType.indexOf('application/json') > -1;
+    const isObjectPayload = utils$1.isObject(data);
+
+    if (isObjectPayload && utils$1.isHTMLForm(data)) {
+      data = new FormData(data);
+    }
+
+    const isFormData = utils$1.isFormData(data);
+
+    if (isFormData) {
+      return hasJSONContentType ? JSON.stringify(formDataToJSON(data)) : data;
+    }
+
+    if (utils$1.isArrayBuffer(data) ||
+      utils$1.isBuffer(data) ||
+      utils$1.isStream(data) ||
+      utils$1.isFile(data) ||
+      utils$1.isBlob(data) ||
+      utils$1.isReadableStream(data)
+    ) {
+      return data;
+    }
+    if (utils$1.isArrayBufferView(data)) {
+      return data.buffer;
+    }
+    if (utils$1.isURLSearchParams(data)) {
+      headers.setContentType('application/x-www-form-urlencoded;charset=utf-8', false);
+      return data.toString();
+    }
+
+    let isFileList;
+
+    if (isObjectPayload) {
+      if (contentType.indexOf('application/x-www-form-urlencoded') > -1) {
+        return toURLEncodedForm(data, this.formSerializer).toString();
+      }
+
+      if ((isFileList = utils$1.isFileList(data)) || contentType.indexOf('multipart/form-data') > -1) {
+        const _FormData = this.env && this.env.FormData;
+
+        return toFormData(
+          isFileList ? {'files[]': data} : data,
+          _FormData && new _FormData(),
+          this.formSerializer
+        );
+      }
+    }
+
+    if (isObjectPayload || hasJSONContentType ) {
+      headers.setContentType('application/json', false);
+      return stringifySafely(data);
+    }
+
+    return data;
+  }],
+
+  transformResponse: [function transformResponse(data) {
+    const transitional = this.transitional || defaults.transitional;
+    const forcedJSONParsing = transitional && transitional.forcedJSONParsing;
+    const JSONRequested = this.responseType === 'json';
+
+    if (utils$1.isResponse(data) || utils$1.isReadableStream(data)) {
+      return data;
+    }
+
+    if (data && utils$1.isString(data) && ((forcedJSONParsing && !this.responseType) || JSONRequested)) {
+      const silentJSONParsing = transitional && transitional.silentJSONParsing;
+      const strictJSONParsing = !silentJSONParsing && JSONRequested;
+
+      try {
+        return JSON.parse(data);
+      } catch (e) {
+        if (strictJSONParsing) {
+          if (e.name === 'SyntaxError') {
+            throw AxiosError.from(e, AxiosError.ERR_BAD_RESPONSE, this, null, this.response);
+          }
+          throw e;
+        }
+      }
+    }
+
+    return data;
+  }],
+
+  /**
+   * A timeout in milliseconds to abort a request. If set to 0 (default) a
+   * timeout is not created.
+   */
+  timeout: 0,
+
+  xsrfCookieName: 'XSRF-TOKEN',
+  xsrfHeaderName: 'X-XSRF-TOKEN',
+
+  maxContentLength: -1,
+  maxBodyLength: -1,
+
+  env: {
+    FormData: platform.classes.FormData,
+    Blob: platform.classes.Blob
+  },
+
+  validateStatus: function validateStatus(status) {
+    return status >= 200 && status < 300;
+  },
+
+  headers: {
+    common: {
+      'Accept': 'application/json, text/plain, */*',
+      'Content-Type': undefined
+    }
+  }
+};
+
+utils$1.forEach(['delete', 'get', 'head', 'post', 'put', 'patch'], (method) => {
+  defaults.headers[method] = {};
+});
+
+var defaults$1 = defaults;
+
+// RawAxiosHeaders whose duplicates are ignored by node
+// c.f. https://nodejs.org/api/http.html#http_message_headers
+const ignoreDuplicateOf = utils$1.toObjectSet([
+  'age', 'authorization', 'content-length', 'content-type', 'etag',
+  'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since',
+  'last-modified', 'location', 'max-forwards', 'proxy-authorization',
+  'referer', 'retry-after', 'user-agent'
+]);
+
+/**
+ * Parse headers into an object
+ *
+ * ```
+ * Date: Wed, 27 Aug 2014 08:58:49 GMT
+ * Content-Type: application/json
+ * Connection: keep-alive
+ * Transfer-Encoding: chunked
+ * ```
+ *
+ * @param {String} rawHeaders Headers needing to be parsed
+ *
+ * @returns {Object} Headers parsed into an object
+ */
+var parseHeaders = rawHeaders => {
+  const parsed = {};
+  let key;
+  let val;
+  let i;
+
+  rawHeaders && rawHeaders.split('\n').forEach(function parser(line) {
+    i = line.indexOf(':');
+    key = line.substring(0, i).trim().toLowerCase();
+    val = line.substring(i + 1).trim();
+
+    if (!key || (parsed[key] && ignoreDuplicateOf[key])) {
+      return;
+    }
+
+    if (key === 'set-cookie') {
+      if (parsed[key]) {
+        parsed[key].push(val);
+      } else {
+        parsed[key] = [val];
+      }
+    } else {
+      parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;
+    }
+  });
+
+  return parsed;
+};
+
+const $internals = Symbol('internals');
+
+function normalizeHeader(header) {
+  return header && String(header).trim().toLowerCase();
+}
+
+function normalizeValue(value) {
+  if (value === false || value == null) {
+    return value;
+  }
+
+  return utils$1.isArray(value) ? value.map(normalizeValue) : String(value);
+}
+
+function parseTokens(str) {
+  const tokens = Object.create(null);
+  const tokensRE = /([^\s,;=]+)\s*(?:=\s*([^,;]+))?/g;
+  let match;
+
+  while ((match = tokensRE.exec(str))) {
+    tokens[match[1]] = match[2];
+  }
+
+  return tokens;
+}
+
+const isValidHeaderName = (str) => /^[-_a-zA-Z0-9^`|~,!#$%&'*+.]+$/.test(str.trim());
+
+function matchHeaderValue(context, value, header, filter, isHeaderNameFilter) {
+  if (utils$1.isFunction(filter)) {
+    return filter.call(this, value, header);
+  }
+
+  if (isHeaderNameFilter) {
+    value = header;
+  }
+
+  if (!utils$1.isString(value)) return;
+
+  if (utils$1.isString(filter)) {
+    return value.indexOf(filter) !== -1;
+  }
+
+  if (utils$1.isRegExp(filter)) {
+    return filter.test(value);
+  }
+}
+
+function formatHeader(header) {
+  return header.trim()
+    .toLowerCase().replace(/([a-z\d])(\w*)/g, (w, char, str) => {
+      return char.toUpperCase() + str;
+    });
+}
+
+function buildAccessors(obj, header) {
+  const accessorName = utils$1.toCamelCase(' ' + header);
+
+  ['get', 'set', 'has'].forEach(methodName => {
+    Object.defineProperty(obj, methodName + accessorName, {
+      value: function(arg1, arg2, arg3) {
+        return this[methodName].call(this, header, arg1, arg2, arg3);
+      },
+      configurable: true
+    });
+  });
+}
+
+class AxiosHeaders {
+  constructor(headers) {
+    headers && this.set(headers);
+  }
+
+  set(header, valueOrRewrite, rewrite) {
+    const self = this;
+
+    function setHeader(_value, _header, _rewrite) {
+      const lHeader = normalizeHeader(_header);
+
+      if (!lHeader) {
+        throw new Error('header name must be a non-empty string');
+      }
+
+      const key = utils$1.findKey(self, lHeader);
+
+      if(!key || self[key] === undefined || _rewrite === true || (_rewrite === undefined && self[key] !== false)) {
+        self[key || _header] = normalizeValue(_value);
+      }
+    }
+
+    const setHeaders = (headers, _rewrite) =>
+      utils$1.forEach(headers, (_value, _header) => setHeader(_value, _header, _rewrite));
+
+    if (utils$1.isPlainObject(header) || header instanceof this.constructor) {
+      setHeaders(header, valueOrRewrite);
+    } else if(utils$1.isString(header) && (header = header.trim()) && !isValidHeaderName(header)) {
+      setHeaders(parseHeaders(header), valueOrRewrite);
+    } else if (utils$1.isHeaders(header)) {
+      for (const [key, value] of header.entries()) {
+        setHeader(value, key, rewrite);
+      }
+    } else {
+      header != null && setHeader(valueOrRewrite, header, rewrite);
+    }
+
+    return this;
+  }
+
+  get(header, parser) {
+    header = normalizeHeader(header);
+
+    if (header) {
+      const key = utils$1.findKey(this, header);
+
+      if (key) {
+        const value = this[key];
+
+        if (!parser) {
+          return value;
+        }
+
+        if (parser === true) {
+          return parseTokens(value);
+        }
+
+        if (utils$1.isFunction(parser)) {
+          return parser.call(this, value, key);
+        }
+
+        if (utils$1.isRegExp(parser)) {
+          return parser.exec(value);
+        }
+
+        throw new TypeError('parser must be boolean|regexp|function');
+      }
+    }
+  }
+
+  has(header, matcher) {
+    header = normalizeHeader(header);
+
+    if (header) {
+      const key = utils$1.findKey(this, header);
+
+      return !!(key && this[key] !== undefined && (!matcher || matchHeaderValue(this, this[key], key, matcher)));
+    }
+
+    return false;
+  }
+
+  delete(header, matcher) {
+    const self = this;
+    let deleted = false;
+
+    function deleteHeader(_header) {
+      _header = normalizeHeader(_header);
+
+      if (_header) {
+        const key = utils$1.findKey(self, _header);
+
+        if (key && (!matcher || matchHeaderValue(self, self[key], key, matcher))) {
+          delete self[key];
+
+          deleted = true;
+        }
+      }
+    }
+
+    if (utils$1.isArray(header)) {
+      header.forEach(deleteHeader);
+    } else {
+      deleteHeader(header);
+    }
+
+    return deleted;
+  }
+
+  clear(matcher) {
+    const keys = Object.keys(this);
+    let i = keys.length;
+    let deleted = false;
+
+    while (i--) {
+      const key = keys[i];
+      if(!matcher || matchHeaderValue(this, this[key], key, matcher, true)) {
+        delete this[key];
+        deleted = true;
+      }
+    }
+
+    return deleted;
+  }
+
+  normalize(format) {
+    const self = this;
+    const headers = {};
+
+    utils$1.forEach(this, (value, header) => {
+      const key = utils$1.findKey(headers, header);
+
+      if (key) {
+        self[key] = normalizeValue(value);
+        delete self[header];
+        return;
+      }
+
+      const normalized = format ? formatHeader(header) : String(header).trim();
+
+      if (normalized !== header) {
+        delete self[header];
+      }
+
+      self[normalized] = normalizeValue(value);
+
+      headers[normalized] = true;
+    });
+
+    return this;
+  }
+
+  concat(...targets) {
+    return this.constructor.concat(this, ...targets);
+  }
+
+  toJSON(asStrings) {
+    const obj = Object.create(null);
+
+    utils$1.forEach(this, (value, header) => {
+      value != null && value !== false && (obj[header] = asStrings && utils$1.isArray(value) ? value.join(', ') : value);
+    });
+
+    return obj;
+  }
+
+  [Symbol.iterator]() {
+    return Object.entries(this.toJSON())[Symbol.iterator]();
+  }
+
+  toString() {
+    return Object.entries(this.toJSON()).map(([header, value]) => header + ': ' + value).join('\n');
+  }
+
+  get [Symbol.toStringTag]() {
+    return 'AxiosHeaders';
+  }
+
+  static from(thing) {
+    return thing instanceof this ? thing : new this(thing);
+  }
+
+  static concat(first, ...targets) {
+    const computed = new this(first);
+
+    targets.forEach((target) => computed.set(target));
+
+    return computed;
+  }
+
+  static accessor(header) {
+    const internals = this[$internals] = (this[$internals] = {
+      accessors: {}
+    });
+
+    const accessors = internals.accessors;
+    const prototype = this.prototype;
+
+    function defineAccessor(_header) {
+      const lHeader = normalizeHeader(_header);
+
+      if (!accessors[lHeader]) {
+        buildAccessors(prototype, _header);
+        accessors[lHeader] = true;
+      }
+    }
+
+    utils$1.isArray(header) ? header.forEach(defineAccessor) : defineAccessor(header);
+
+    return this;
+  }
+}
+
+AxiosHeaders.accessor(['Content-Type', 'Content-Length', 'Accept', 'Accept-Encoding', 'User-Agent', 'Authorization']);
+
+// reserved names hotfix
+utils$1.reduceDescriptors(AxiosHeaders.prototype, ({value}, key) => {
+  let mapped = key[0].toUpperCase() + key.slice(1); // map `set` => `Set`
+  return {
+    get: () => value,
+    set(headerValue) {
+      this[mapped] = headerValue;
+    }
+  }
+});
+
+utils$1.freezeMethods(AxiosHeaders);
+
+var AxiosHeaders$1 = AxiosHeaders;
+
+/**
+ * Transform the data for a request or a response
+ *
+ * @param {Array|Function} fns A single function or Array of functions
+ * @param {?Object} response The response object
+ *
+ * @returns {*} The resulting transformed data
+ */
+function transformData(fns, response) {
+  const config = this || defaults$1;
+  const context = response || config;
+  const headers = AxiosHeaders$1.from(context.headers);
+  let data = context.data;
+
+  utils$1.forEach(fns, function transform(fn) {
+    data = fn.call(config, data, headers.normalize(), response ? response.status : undefined);
+  });
+
+  headers.normalize();
+
+  return data;
+}
+
+function isCancel(value) {
+  return !!(value && value.__CANCEL__);
+}
+
+/**
+ * A `CanceledError` is an object that is thrown when an operation is canceled.
+ *
+ * @param {string=} message The message.
+ * @param {Object=} config The config.
+ * @param {Object=} request The request.
+ *
+ * @returns {CanceledError} The created error.
+ */
+function CanceledError(message, config, request) {
+  // eslint-disable-next-line no-eq-null,eqeqeq
+  AxiosError.call(this, message == null ? 'canceled' : message, AxiosError.ERR_CANCELED, config, request);
+  this.name = 'CanceledError';
+}
+
+utils$1.inherits(CanceledError, AxiosError, {
+  __CANCEL__: true
+});
+
+/**
+ * Resolve or reject a Promise based on response status.
+ *
+ * @param {Function} resolve A function that resolves the promise.
+ * @param {Function} reject A function that rejects the promise.
+ * @param {object} response The response.
+ *
+ * @returns {object} The response.
+ */
+function settle(resolve, reject, response) {
+  const validateStatus = response.config.validateStatus;
+  if (!response.status || !validateStatus || validateStatus(response.status)) {
+    resolve(response);
+  } else {
+    reject(new AxiosError(
+      'Request failed with status code ' + response.status,
+      [AxiosError.ERR_BAD_REQUEST, AxiosError.ERR_BAD_RESPONSE][Math.floor(response.status / 100) - 4],
+      response.config,
+      response.request,
+      response
+    ));
+  }
+}
+
+function parseProtocol(url) {
+  const match = /^([-+\w]{1,25})(:?\/\/|:)/.exec(url);
+  return match && match[1] || '';
+}
+
+/**
+ * Calculate data maxRate
+ * @param {Number} [samplesCount= 10]
+ * @param {Number} [min= 1000]
+ * @returns {Function}
+ */
+function speedometer(samplesCount, min) {
+  samplesCount = samplesCount || 10;
+  const bytes = new Array(samplesCount);
+  const timestamps = new Array(samplesCount);
+  let head = 0;
+  let tail = 0;
+  let firstSampleTS;
+
+  min = min !== undefined ? min : 1000;
+
+  return function push(chunkLength) {
+    const now = Date.now();
+
+    const startedAt = timestamps[tail];
+
+    if (!firstSampleTS) {
+      firstSampleTS = now;
+    }
+
+    bytes[head] = chunkLength;
+    timestamps[head] = now;
+
+    let i = tail;
+    let bytesCount = 0;
+
+    while (i !== head) {
+      bytesCount += bytes[i++];
+      i = i % samplesCount;
+    }
+
+    head = (head + 1) % samplesCount;
+
+    if (head === tail) {
+      tail = (tail + 1) % samplesCount;
+    }
+
+    if (now - firstSampleTS < min) {
+      return;
+    }
+
+    const passed = startedAt && now - startedAt;
+
+    return passed ? Math.round(bytesCount * 1000 / passed) : undefined;
+  };
+}
+
+/**
+ * Throttle decorator
+ * @param {Function} fn
+ * @param {Number} freq
+ * @return {Function}
+ */
+function throttle(fn, freq) {
+  let timestamp = 0;
+  let threshold = 1000 / freq;
+  let lastArgs;
+  let timer;
+
+  const invoke = (args, now = Date.now()) => {
+    timestamp = now;
+    lastArgs = null;
+    if (timer) {
+      clearTimeout(timer);
+      timer = null;
+    }
+    fn.apply(null, args);
+  };
+
+  const throttled = (...args) => {
+    const now = Date.now();
+    const passed = now - timestamp;
+    if ( passed >= threshold) {
+      invoke(args, now);
+    } else {
+      lastArgs = args;
+      if (!timer) {
+        timer = setTimeout(() => {
+          timer = null;
+          invoke(lastArgs);
+        }, threshold - passed);
+      }
+    }
+  };
+
+  const flush = () => lastArgs && invoke(lastArgs);
+
+  return [throttled, flush];
+}
+
+const progressEventReducer = (listener, isDownloadStream, freq = 3) => {
+  let bytesNotified = 0;
+  const _speedometer = speedometer(50, 250);
+
+  return throttle(e => {
+    const loaded = e.loaded;
+    const total = e.lengthComputable ? e.total : undefined;
+    const progressBytes = loaded - bytesNotified;
+    const rate = _speedometer(progressBytes);
+    const inRange = loaded <= total;
+
+    bytesNotified = loaded;
+
+    const data = {
+      loaded,
+      total,
+      progress: total ? (loaded / total) : undefined,
+      bytes: progressBytes,
+      rate: rate ? rate : undefined,
+      estimated: rate && total && inRange ? (total - loaded) / rate : undefined,
+      event: e,
+      lengthComputable: total != null,
+      [isDownloadStream ? 'download' : 'upload']: true
+    };
+
+    listener(data);
+  }, freq);
+};
+
+const progressEventDecorator = (total, throttled) => {
+  const lengthComputable = total != null;
+
+  return [(loaded) => throttled[0]({
+    lengthComputable,
+    total,
+    loaded
+  }), throttled[1]];
+};
+
+const asyncDecorator = (fn) => (...args) => utils$1.asap(() => fn(...args));
+
+var isURLSameOrigin = platform.hasStandardBrowserEnv ? ((origin, isMSIE) => (url) => {
+  url = new URL(url, platform.origin);
+
+  return (
+    origin.protocol === url.protocol &&
+    origin.host === url.host &&
+    (isMSIE || origin.port === url.port)
+  );
+})(
+  new URL(platform.origin),
+  platform.navigator && /(msie|trident)/i.test(platform.navigator.userAgent)
+) : () => true;
+
+var cookies = platform.hasStandardBrowserEnv ?
+
+  // Standard browser envs support document.cookie
+  {
+    write(name, value, expires, path, domain, secure) {
+      const cookie = [name + '=' + encodeURIComponent(value)];
+
+      utils$1.isNumber(expires) && cookie.push('expires=' + new Date(expires).toGMTString());
+
+      utils$1.isString(path) && cookie.push('path=' + path);
+
+      utils$1.isString(domain) && cookie.push('domain=' + domain);
+
+      secure === true && cookie.push('secure');
+
+      document.cookie = cookie.join('; ');
+    },
+
+    read(name) {
+      const match = document.cookie.match(new RegExp('(^|;\\s*)(' + name + ')=([^;]*)'));
+      return (match ? decodeURIComponent(match[3]) : null);
+    },
+
+    remove(name) {
+      this.write(name, '', Date.now() - 86400000);
+    }
+  }
+
+  :
+
+  // Non-standard browser env (web workers, react-native) lack needed support.
+  {
+    write() {},
+    read() {
+      return null;
+    },
+    remove() {}
+  };
+
+/**
+ * Determines whether the specified URL is absolute
+ *
+ * @param {string} url The URL to test
+ *
+ * @returns {boolean} True if the specified URL is absolute, otherwise false
+ */
+function isAbsoluteURL(url) {
+  // A URL is considered absolute if it begins with "<scheme>://" or "//" (protocol-relative URL).
+  // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed
+  // by any combination of letters, digits, plus, period, or hyphen.
+  return /^([a-z][a-z\d+\-.]*:)?\/\//i.test(url);
+}
+
+/**
+ * Creates a new URL by combining the specified URLs
+ *
+ * @param {string} baseURL The base URL
+ * @param {string} relativeURL The relative URL
+ *
+ * @returns {string} The combined URL
+ */
+function combineURLs(baseURL, relativeURL) {
+  return relativeURL
+    ? baseURL.replace(/\/?\/$/, '') + '/' + relativeURL.replace(/^\/+/, '')
+    : baseURL;
+}
+
+/**
+ * Creates a new URL by combining the baseURL with the requestedURL,
+ * only when the requestedURL is not already an absolute URL.
+ * If the requestURL is absolute, this function returns the requestedURL untouched.
+ *
+ * @param {string} baseURL The base URL
+ * @param {string} requestedURL Absolute or relative URL to combine
+ *
+ * @returns {string} The combined full path
+ */
+function buildFullPath(baseURL, requestedURL) {
+  if (baseURL && !isAbsoluteURL(requestedURL)) {
+    return combineURLs(baseURL, requestedURL);
+  }
+  return requestedURL;
+}
+
+const headersToObject = (thing) => thing instanceof AxiosHeaders$1 ? { ...thing } : thing;
+
+/**
+ * Config-specific merge-function which creates a new config-object
+ * by merging two configuration objects together.
+ *
+ * @param {Object} config1
+ * @param {Object} config2
+ *
+ * @returns {Object} New object resulting from merging config2 to config1
+ */
+function mergeConfig(config1, config2) {
+  // eslint-disable-next-line no-param-reassign
+  config2 = config2 || {};
+  const config = {};
+
+  function getMergedValue(target, source, prop, caseless) {
+    if (utils$1.isPlainObject(target) && utils$1.isPlainObject(source)) {
+      return utils$1.merge.call({caseless}, target, source);
+    } else if (utils$1.isPlainObject(source)) {
+      return utils$1.merge({}, source);
+    } else if (utils$1.isArray(source)) {
+      return source.slice();
+    }
+    return source;
+  }
+
+  // eslint-disable-next-line consistent-return
+  function mergeDeepProperties(a, b, prop , caseless) {
+    if (!utils$1.isUndefined(b)) {
+      return getMergedValue(a, b, prop , caseless);
+    } else if (!utils$1.isUndefined(a)) {
+      return getMergedValue(undefined, a, prop , caseless);
+    }
+  }
+
+  // eslint-disable-next-line consistent-return
+  function valueFromConfig2(a, b) {
+    if (!utils$1.isUndefined(b)) {
+      return getMergedValue(undefined, b);
+    }
+  }
+
+  // eslint-disable-next-line consistent-return
+  function defaultToConfig2(a, b) {
+    if (!utils$1.isUndefined(b)) {
+      return getMergedValue(undefined, b);
+    } else if (!utils$1.isUndefined(a)) {
+      return getMergedValue(undefined, a);
+    }
+  }
+
+  // eslint-disable-next-line consistent-return
+  function mergeDirectKeys(a, b, prop) {
+    if (prop in config2) {
+      return getMergedValue(a, b);
+    } else if (prop in config1) {
+      return getMergedValue(undefined, a);
+    }
+  }
+
+  const mergeMap = {
+    url: valueFromConfig2,
+    method: valueFromConfig2,
+    data: valueFromConfig2,
+    baseURL: defaultToConfig2,
+    transformRequest: defaultToConfig2,
+    transformResponse: defaultToConfig2,
+    paramsSerializer: defaultToConfig2,
+    timeout: defaultToConfig2,
+    timeoutMessage: defaultToConfig2,
+    withCredentials: defaultToConfig2,
+    withXSRFToken: defaultToConfig2,
+    adapter: defaultToConfig2,
+    responseType: defaultToConfig2,
+    xsrfCookieName: defaultToConfig2,
+    xsrfHeaderName: defaultToConfig2,
+    onUploadProgress: defaultToConfig2,
+    onDownloadProgress: defaultToConfig2,
+    decompress: defaultToConfig2,
+    maxContentLength: defaultToConfig2,
+    maxBodyLength: defaultToConfig2,
+    beforeRedirect: defaultToConfig2,
+    transport: defaultToConfig2,
+    httpAgent: defaultToConfig2,
+    httpsAgent: defaultToConfig2,
+    cancelToken: defaultToConfig2,
+    socketPath: defaultToConfig2,
+    responseEncoding: defaultToConfig2,
+    validateStatus: mergeDirectKeys,
+    headers: (a, b , prop) => mergeDeepProperties(headersToObject(a), headersToObject(b),prop, true)
+  };
+
+  utils$1.forEach(Object.keys(Object.assign({}, config1, config2)), function computeConfigValue(prop) {
+    const merge = mergeMap[prop] || mergeDeepProperties;
+    const configValue = merge(config1[prop], config2[prop], prop);
+    (utils$1.isUndefined(configValue) && merge !== mergeDirectKeys) || (config[prop] = configValue);
+  });
+
+  return config;
+}
+
+var resolveConfig = (config) => {
+  const newConfig = mergeConfig({}, config);
+
+  let {data, withXSRFToken, xsrfHeaderName, xsrfCookieName, headers, auth} = newConfig;
+
+  newConfig.headers = headers = AxiosHeaders$1.from(headers);
+
+  newConfig.url = buildURL(buildFullPath(newConfig.baseURL, newConfig.url), config.params, config.paramsSerializer);
+
+  // HTTP basic authentication
+  if (auth) {
+    headers.set('Authorization', 'Basic ' +
+      btoa((auth.username || '') + ':' + (auth.password ? unescape(encodeURIComponent(auth.password)) : ''))
+    );
+  }
+
+  let contentType;
+
+  if (utils$1.isFormData(data)) {
+    if (platform.hasStandardBrowserEnv || platform.hasStandardBrowserWebWorkerEnv) {
+      headers.setContentType(undefined); // Let the browser set it
+    } else if ((contentType = headers.getContentType()) !== false) {
+      // fix semicolon duplication issue for ReactNative FormData implementation
+      const [type, ...tokens] = contentType ? contentType.split(';').map(token => token.trim()).filter(Boolean) : [];
+      headers.setContentType([type || 'multipart/form-data', ...tokens].join('; '));
+    }
+  }
+
+  // Add xsrf header
+  // This is only done if running in a standard browser environment.
+  // Specifically not if we're in a web worker, or react-native.
+
+  if (platform.hasStandardBrowserEnv) {
+    withXSRFToken && utils$1.isFunction(withXSRFToken) && (withXSRFToken = withXSRFToken(newConfig));
+
+    if (withXSRFToken || (withXSRFToken !== false && isURLSameOrigin(newConfig.url))) {
+      // Add xsrf header
+      const xsrfValue = xsrfHeaderName && xsrfCookieName && cookies.read(xsrfCookieName);
+
+      if (xsrfValue) {
+        headers.set(xsrfHeaderName, xsrfValue);
+      }
+    }
+  }
+
+  return newConfig;
+};
+
+const isXHRAdapterSupported = typeof XMLHttpRequest !== 'undefined';
+
+var xhrAdapter = isXHRAdapterSupported && function (config) {
+  return new Promise(function dispatchXhrRequest(resolve, reject) {
+    const _config = resolveConfig(config);
+    let requestData = _config.data;
+    const requestHeaders = AxiosHeaders$1.from(_config.headers).normalize();
+    let {responseType, onUploadProgress, onDownloadProgress} = _config;
+    let onCanceled;
+    let uploadThrottled, downloadThrottled;
+    let flushUpload, flushDownload;
+
+    function done() {
+      flushUpload && flushUpload(); // flush events
+      flushDownload && flushDownload(); // flush events
+
+      _config.cancelToken && _config.cancelToken.unsubscribe(onCanceled);
+
+      _config.signal && _config.signal.removeEventListener('abort', onCanceled);
+    }
+
+    let request = new XMLHttpRequest();
+
+    request.open(_config.method.toUpperCase(), _config.url, true);
+
+    // Set the request timeout in MS
+    request.timeout = _config.timeout;
+
+    function onloadend() {
+      if (!request) {
+        return;
+      }
+      // Prepare the response
+      const responseHeaders = AxiosHeaders$1.from(
+        'getAllResponseHeaders' in request && request.getAllResponseHeaders()
+      );
+      const responseData = !responseType || responseType === 'text' || responseType === 'json' ?
+        request.responseText : request.response;
+      const response = {
+        data: responseData,
+        status: request.status,
+        statusText: request.statusText,
+        headers: responseHeaders,
+        config,
+        request
+      };
+
+      settle(function _resolve(value) {
+        resolve(value);
+        done();
+      }, function _reject(err) {
+        reject(err);
+        done();
+      }, response);
+
+      // Clean up request
+      request = null;
+    }
+
+    if ('onloadend' in request) {
+      // Use onloadend if available
+      request.onloadend = onloadend;
+    } else {
+      // Listen for ready state to emulate onloadend
+      request.onreadystatechange = function handleLoad() {
+        if (!request || request.readyState !== 4) {
+          return;
+        }
+
+        // The request errored out and we didn't get a response, this will be
+        // handled by onerror instead
+        // With one exception: request that using file: protocol, most browsers
+        // will return status as 0 even though it's a successful request
+        if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {
+          return;
+        }
+        // readystate handler is calling before onerror or ontimeout handlers,
+        // so we should call onloadend on the next 'tick'
+        setTimeout(onloadend);
+      };
+    }
+
+    // Handle browser request cancellation (as opposed to a manual cancellation)
+    request.onabort = function handleAbort() {
+      if (!request) {
+        return;
+      }
+
+      reject(new AxiosError('Request aborted', AxiosError.ECONNABORTED, config, request));
+
+      // Clean up request
+      request = null;
+    };
+
+    // Handle low level network errors
+    request.onerror = function handleError() {
+      // Real errors are hidden from us by the browser
+      // onerror should only fire if it's a network error
+      reject(new AxiosError('Network Error', AxiosError.ERR_NETWORK, config, request));
+
+      // Clean up request
+      request = null;
+    };
+
+    // Handle timeout
+    request.ontimeout = function handleTimeout() {
+      let timeoutErrorMessage = _config.timeout ? 'timeout of ' + _config.timeout + 'ms exceeded' : 'timeout exceeded';
+      const transitional = _config.transitional || transitionalDefaults;
+      if (_config.timeoutErrorMessage) {
+        timeoutErrorMessage = _config.timeoutErrorMessage;
+      }
+      reject(new AxiosError(
+        timeoutErrorMessage,
+        transitional.clarifyTimeoutError ? AxiosError.ETIMEDOUT : AxiosError.ECONNABORTED,
+        config,
+        request));
+
+      // Clean up request
+      request = null;
+    };
+
+    // Remove Content-Type if data is undefined
+    requestData === undefined && requestHeaders.setContentType(null);
+
+    // Add headers to the request
+    if ('setRequestHeader' in request) {
+      utils$1.forEach(requestHeaders.toJSON(), function setRequestHeader(val, key) {
+        request.setRequestHeader(key, val);
+      });
+    }
+
+    // Add withCredentials to request if needed
+    if (!utils$1.isUndefined(_config.withCredentials)) {
+      request.withCredentials = !!_config.withCredentials;
+    }
+
+    // Add responseType to request if needed
+    if (responseType && responseType !== 'json') {
+      request.responseType = _config.responseType;
+    }
+
+    // Handle progress if needed
+    if (onDownloadProgress) {
+      ([downloadThrottled, flushDownload] = progressEventReducer(onDownloadProgress, true));
+      request.addEventListener('progress', downloadThrottled);
+    }
+
+    // Not all browsers support upload events
+    if (onUploadProgress && request.upload) {
+      ([uploadThrottled, flushUpload] = progressEventReducer(onUploadProgress));
+
+      request.upload.addEventListener('progress', uploadThrottled);
+
+      request.upload.addEventListener('loadend', flushUpload);
+    }
+
+    if (_config.cancelToken || _config.signal) {
+      // Handle cancellation
+      // eslint-disable-next-line func-names
+      onCanceled = cancel => {
+        if (!request) {
+          return;
+        }
+        reject(!cancel || cancel.type ? new CanceledError(null, config, request) : cancel);
+        request.abort();
+        request = null;
+      };
+
+      _config.cancelToken && _config.cancelToken.subscribe(onCanceled);
+      if (_config.signal) {
+        _config.signal.aborted ? onCanceled() : _config.signal.addEventListener('abort', onCanceled);
+      }
+    }
+
+    const protocol = parseProtocol(_config.url);
+
+    if (protocol && platform.protocols.indexOf(protocol) === -1) {
+      reject(new AxiosError('Unsupported protocol ' + protocol + ':', AxiosError.ERR_BAD_REQUEST, config));
+      return;
+    }
+
+
+    // Send the request
+    request.send(requestData || null);
+  });
+};
+
+const composeSignals = (signals, timeout) => {
+  const {length} = (signals = signals ? signals.filter(Boolean) : []);
+
+  if (timeout || length) {
+    let controller = new AbortController();
+
+    let aborted;
+
+    const onabort = function (reason) {
+      if (!aborted) {
+        aborted = true;
+        unsubscribe();
+        const err = reason instanceof Error ? reason : this.reason;
+        controller.abort(err instanceof AxiosError ? err : new CanceledError(err instanceof Error ? err.message : err));
+      }
+    };
+
+    let timer = timeout && setTimeout(() => {
+      timer = null;
+      onabort(new AxiosError(`timeout ${timeout} of ms exceeded`, AxiosError.ETIMEDOUT));
+    }, timeout);
+
+    const unsubscribe = () => {
+      if (signals) {
+        timer && clearTimeout(timer);
+        timer = null;
+        signals.forEach(signal => {
+          signal.unsubscribe ? signal.unsubscribe(onabort) : signal.removeEventListener('abort', onabort);
+        });
+        signals = null;
+      }
+    };
+
+    signals.forEach((signal) => signal.addEventListener('abort', onabort));
+
+    const {signal} = controller;
+
+    signal.unsubscribe = () => utils$1.asap(unsubscribe);
+
+    return signal;
+  }
+};
+
+var composeSignals$1 = composeSignals;
+
+const streamChunk = function* (chunk, chunkSize) {
+  let len = chunk.byteLength;
+
+  if (!chunkSize || len < chunkSize) {
+    yield chunk;
+    return;
+  }
+
+  let pos = 0;
+  let end;
+
+  while (pos < len) {
+    end = pos + chunkSize;
+    yield chunk.slice(pos, end);
+    pos = end;
+  }
+};
+
+const readBytes = async function* (iterable, chunkSize) {
+  for await (const chunk of readStream(iterable)) {
+    yield* streamChunk(chunk, chunkSize);
+  }
+};
+
+const readStream = async function* (stream) {
+  if (stream[Symbol.asyncIterator]) {
+    yield* stream;
+    return;
+  }
+
+  const reader = stream.getReader();
+  try {
+    for (;;) {
+      const {done, value} = await reader.read();
+      if (done) {
+        break;
+      }
+      yield value;
+    }
+  } finally {
+    await reader.cancel();
+  }
+};
+
+const trackStream = (stream, chunkSize, onProgress, onFinish) => {
+  const iterator = readBytes(stream, chunkSize);
+
+  let bytes = 0;
+  let done;
+  let _onFinish = (e) => {
+    if (!done) {
+      done = true;
+      onFinish && onFinish(e);
+    }
+  };
+
+  return new ReadableStream({
+    async pull(controller) {
+      try {
+        const {done, value} = await iterator.next();
+
+        if (done) {
+         _onFinish();
+          controller.close();
+          return;
+        }
+
+        let len = value.byteLength;
+        if (onProgress) {
+          let loadedBytes = bytes += len;
+          onProgress(loadedBytes);
+        }
+        controller.enqueue(new Uint8Array(value));
+      } catch (err) {
+        _onFinish(err);
+        throw err;
+      }
+    },
+    cancel(reason) {
+      _onFinish(reason);
+      return iterator.return();
+    }
+  }, {
+    highWaterMark: 2
+  })
+};
+
+const isFetchSupported = typeof fetch === 'function' && typeof Request === 'function' && typeof Response === 'function';
+const isReadableStreamSupported = isFetchSupported && typeof ReadableStream === 'function';
+
+// used only inside the fetch adapter
+const encodeText = isFetchSupported && (typeof TextEncoder === 'function' ?
+    ((encoder) => (str) => encoder.encode(str))(new TextEncoder()) :
+    async (str) => new Uint8Array(await new Response(str).arrayBuffer())
+);
+
+const test = (fn, ...args) => {
+  try {
+    return !!fn(...args);
+  } catch (e) {
+    return false
+  }
+};
+
+const supportsRequestStream = isReadableStreamSupported && test(() => {
+  let duplexAccessed = false;
+
+  const hasContentType = new Request(platform.origin, {
+    body: new ReadableStream(),
+    method: 'POST',
+    get duplex() {
+      duplexAccessed = true;
+      return 'half';
+    },
+  }).headers.has('Content-Type');
+
+  return duplexAccessed && !hasContentType;
+});
+
+const DEFAULT_CHUNK_SIZE = 64 * 1024;
+
+const supportsResponseStream = isReadableStreamSupported &&
+  test(() => utils$1.isReadableStream(new Response('').body));
+
+
+const resolvers = {
+  stream: supportsResponseStream && ((res) => res.body)
+};
+
+isFetchSupported && (((res) => {
+  ['text', 'arrayBuffer', 'blob', 'formData', 'stream'].forEach(type => {
+    !resolvers[type] && (resolvers[type] = utils$1.isFunction(res[type]) ? (res) => res[type]() :
+      (_, config) => {
+        throw new AxiosError(`Response type '${type}' is not supported`, AxiosError.ERR_NOT_SUPPORT, config);
+      });
+  });
+})(new Response));
+
+const getBodyLength = async (body) => {
+  if (body == null) {
+    return 0;
+  }
+
+  if(utils$1.isBlob(body)) {
+    return body.size;
+  }
+
+  if(utils$1.isSpecCompliantForm(body)) {
+    const _request = new Request(platform.origin, {
+      method: 'POST',
+      body,
+    });
+    return (await _request.arrayBuffer()).byteLength;
+  }
+
+  if(utils$1.isArrayBufferView(body) || utils$1.isArrayBuffer(body)) {
+    return body.byteLength;
+  }
+
+  if(utils$1.isURLSearchParams(body)) {
+    body = body + '';
+  }
+
+  if(utils$1.isString(body)) {
+    return (await encodeText(body)).byteLength;
+  }
+};
+
+const resolveBodyLength = async (headers, body) => {
+  const length = utils$1.toFiniteNumber(headers.getContentLength());
+
+  return length == null ? getBodyLength(body) : length;
+};
+
+var fetchAdapter = isFetchSupported && (async (config) => {
+  let {
+    url,
+    method,
+    data,
+    signal,
+    cancelToken,
+    timeout,
+    onDownloadProgress,
+    onUploadProgress,
+    responseType,
+    headers,
+    withCredentials = 'same-origin',
+    fetchOptions
+  } = resolveConfig(config);
+
+  responseType = responseType ? (responseType + '').toLowerCase() : 'text';
+
+  let composedSignal = composeSignals$1([signal, cancelToken && cancelToken.toAbortSignal()], timeout);
+
+  let request;
+
+  const unsubscribe = composedSignal && composedSignal.unsubscribe && (() => {
+      composedSignal.unsubscribe();
+  });
+
+  let requestContentLength;
+
+  try {
+    if (
+      onUploadProgress && supportsRequestStream && method !== 'get' && method !== 'head' &&
+      (requestContentLength = await resolveBodyLength(headers, data)) !== 0
+    ) {
+      let _request = new Request(url, {
+        method: 'POST',
+        body: data,
+        duplex: "half"
+      });
+
+      let contentTypeHeader;
+
+      if (utils$1.isFormData(data) && (contentTypeHeader = _request.headers.get('content-type'))) {
+        headers.setContentType(contentTypeHeader);
+      }
+
+      if (_request.body) {
+        const [onProgress, flush] = progressEventDecorator(
+          requestContentLength,
+          progressEventReducer(asyncDecorator(onUploadProgress))
+        );
+
+        data = trackStream(_request.body, DEFAULT_CHUNK_SIZE, onProgress, flush);
+      }
+    }
+
+    if (!utils$1.isString(withCredentials)) {
+      withCredentials = withCredentials ? 'include' : 'omit';
+    }
+
+    // Cloudflare Workers throws when credentials are defined
+    // see https://github.com/cloudflare/workerd/issues/902
+    const isCredentialsSupported = "credentials" in Request.prototype;
+    request = new Request(url, {
+      ...fetchOptions,
+      signal: composedSignal,
+      method: method.toUpperCase(),
+      headers: headers.normalize().toJSON(),
+      body: data,
+      duplex: "half",
+      credentials: isCredentialsSupported ? withCredentials : undefined
+    });
+
+    let response = await fetch(request);
+
+    const isStreamResponse = supportsResponseStream && (responseType === 'stream' || responseType === 'response');
+
+    if (supportsResponseStream && (onDownloadProgress || (isStreamResponse && unsubscribe))) {
+      const options = {};
+
+      ['status', 'statusText', 'headers'].forEach(prop => {
+        options[prop] = response[prop];
+      });
+
+      const responseContentLength = utils$1.toFiniteNumber(response.headers.get('content-length'));
+
+      const [onProgress, flush] = onDownloadProgress && progressEventDecorator(
+        responseContentLength,
+        progressEventReducer(asyncDecorator(onDownloadProgress), true)
+      ) || [];
+
+      response = new Response(
+        trackStream(response.body, DEFAULT_CHUNK_SIZE, onProgress, () => {
+          flush && flush();
+          unsubscribe && unsubscribe();
+        }),
+        options
+      );
+    }
+
+    responseType = responseType || 'text';
+
+    let responseData = await resolvers[utils$1.findKey(resolvers, responseType) || 'text'](response, config);
+
+    !isStreamResponse && unsubscribe && unsubscribe();
+
+    return await new Promise((resolve, reject) => {
+      settle(resolve, reject, {
+        data: responseData,
+        headers: AxiosHeaders$1.from(response.headers),
+        status: response.status,
+        statusText: response.statusText,
+        config,
+        request
+      });
+    })
+  } catch (err) {
+    unsubscribe && unsubscribe();
+
+    if (err && err.name === 'TypeError' && /fetch/i.test(err.message)) {
+      throw Object.assign(
+        new AxiosError('Network Error', AxiosError.ERR_NETWORK, config, request),
+        {
+          cause: err.cause || err
+        }
+      )
+    }
+
+    throw AxiosError.from(err, err && err.code, config, request);
+  }
+});
+
+const knownAdapters = {
+  http: httpAdapter,
+  xhr: xhrAdapter,
+  fetch: fetchAdapter
+};
+
+utils$1.forEach(knownAdapters, (fn, value) => {
+  if (fn) {
+    try {
+      Object.defineProperty(fn, 'name', {value});
+    } catch (e) {
+      // eslint-disable-next-line no-empty
+    }
+    Object.defineProperty(fn, 'adapterName', {value});
+  }
+});
+
+const renderReason = (reason) => `- ${reason}`;
+
+const isResolvedHandle = (adapter) => utils$1.isFunction(adapter) || adapter === null || adapter === false;
+
+var adapters = {
+  getAdapter: (adapters) => {
+    adapters = utils$1.isArray(adapters) ? adapters : [adapters];
+
+    const {length} = adapters;
+    let nameOrAdapter;
+    let adapter;
+
+    const rejectedReasons = {};
+
+    for (let i = 0; i < length; i++) {
+      nameOrAdapter = adapters[i];
+      let id;
+
+      adapter = nameOrAdapter;
+
+      if (!isResolvedHandle(nameOrAdapter)) {
+        adapter = knownAdapters[(id = String(nameOrAdapter)).toLowerCase()];
+
+        if (adapter === undefined) {
+          throw new AxiosError(`Unknown adapter '${id}'`);
+        }
+      }
+
+      if (adapter) {
+        break;
+      }
+
+      rejectedReasons[id || '#' + i] = adapter;
+    }
+
+    if (!adapter) {
+
+      const reasons = Object.entries(rejectedReasons)
+        .map(([id, state]) => `adapter ${id} ` +
+          (state === false ? 'is not supported by the environment' : 'is not available in the build')
+        );
+
+      let s = length ?
+        (reasons.length > 1 ? 'since :\n' + reasons.map(renderReason).join('\n') : ' ' + renderReason(reasons[0])) :
+        'as no adapter specified';
+
+      throw new AxiosError(
+        `There is no suitable adapter to dispatch the request ` + s,
+        'ERR_NOT_SUPPORT'
+      );
+    }
+
+    return adapter;
+  },
+  adapters: knownAdapters
+};
+
+/**
+ * Throws a `CanceledError` if cancellation has been requested.
+ *
+ * @param {Object} config The config that is to be used for the request
+ *
+ * @returns {void}
+ */
+function throwIfCancellationRequested(config) {
+  if (config.cancelToken) {
+    config.cancelToken.throwIfRequested();
+  }
+
+  if (config.signal && config.signal.aborted) {
+    throw new CanceledError(null, config);
+  }
+}
+
+/**
+ * Dispatch a request to the server using the configured adapter.
+ *
+ * @param {object} config The config that is to be used for the request
+ *
+ * @returns {Promise} The Promise to be fulfilled
+ */
+function dispatchRequest(config) {
+  throwIfCancellationRequested(config);
+
+  config.headers = AxiosHeaders$1.from(config.headers);
+
+  // Transform request data
+  config.data = transformData.call(
+    config,
+    config.transformRequest
+  );
+
+  if (['post', 'put', 'patch'].indexOf(config.method) !== -1) {
+    config.headers.setContentType('application/x-www-form-urlencoded', false);
+  }
+
+  const adapter = adapters.getAdapter(config.adapter || defaults$1.adapter);
+
+  return adapter(config).then(function onAdapterResolution(response) {
+    throwIfCancellationRequested(config);
+
+    // Transform response data
+    response.data = transformData.call(
+      config,
+      config.transformResponse,
+      response
+    );
+
+    response.headers = AxiosHeaders$1.from(response.headers);
+
+    return response;
+  }, function onAdapterRejection(reason) {
+    if (!isCancel(reason)) {
+      throwIfCancellationRequested(config);
+
+      // Transform response data
+      if (reason && reason.response) {
+        reason.response.data = transformData.call(
+          config,
+          config.transformResponse,
+          reason.response
+        );
+        reason.response.headers = AxiosHeaders$1.from(reason.response.headers);
+      }
+    }
+
+    return Promise.reject(reason);
+  });
+}
+
+const VERSION = "1.7.9";
+
+const validators$1 = {};
+
+// eslint-disable-next-line func-names
+['object', 'boolean', 'number', 'function', 'string', 'symbol'].forEach((type, i) => {
+  validators$1[type] = function validator(thing) {
+    return typeof thing === type || 'a' + (i < 1 ? 'n ' : ' ') + type;
+  };
+});
+
+const deprecatedWarnings = {};
+
+/**
+ * Transitional option validator
+ *
+ * @param {function|boolean?} validator - set to false if the transitional option has been removed
+ * @param {string?} version - deprecated version / removed since version
+ * @param {string?} message - some message with additional info
+ *
+ * @returns {function}
+ */
+validators$1.transitional = function transitional(validator, version, message) {
+  function formatMessage(opt, desc) {
+    return '[Axios v' + VERSION + '] Transitional option \'' + opt + '\'' + desc + (message ? '. ' + message : '');
+  }
+
+  // eslint-disable-next-line func-names
+  return (value, opt, opts) => {
+    if (validator === false) {
+      throw new AxiosError(
+        formatMessage(opt, ' has been removed' + (version ? ' in ' + version : '')),
+        AxiosError.ERR_DEPRECATED
+      );
+    }
+
+    if (version && !deprecatedWarnings[opt]) {
+      deprecatedWarnings[opt] = true;
+      // eslint-disable-next-line no-console
+      console.warn(
+        formatMessage(
+          opt,
+          ' has been deprecated since v' + version + ' and will be removed in the near future'
+        )
+      );
+    }
+
+    return validator ? validator(value, opt, opts) : true;
+  };
+};
+
+validators$1.spelling = function spelling(correctSpelling) {
+  return (value, opt) => {
+    // eslint-disable-next-line no-console
+    console.warn(`${opt} is likely a misspelling of ${correctSpelling}`);
+    return true;
+  }
+};
+
+/**
+ * Assert object's properties type
+ *
+ * @param {object} options
+ * @param {object} schema
+ * @param {boolean?} allowUnknown
+ *
+ * @returns {object}
+ */
+
+function assertOptions(options, schema, allowUnknown) {
+  if (typeof options !== 'object') {
+    throw new AxiosError('options must be an object', AxiosError.ERR_BAD_OPTION_VALUE);
+  }
+  const keys = Object.keys(options);
+  let i = keys.length;
+  while (i-- > 0) {
+    const opt = keys[i];
+    const validator = schema[opt];
+    if (validator) {
+      const value = options[opt];
+      const result = value === undefined || validator(value, opt, options);
+      if (result !== true) {
+        throw new AxiosError('option ' + opt + ' must be ' + result, AxiosError.ERR_BAD_OPTION_VALUE);
+      }
+      continue;
+    }
+    if (allowUnknown !== true) {
+      throw new AxiosError('Unknown option ' + opt, AxiosError.ERR_BAD_OPTION);
+    }
+  }
+}
+
+var validator = {
+  assertOptions,
+  validators: validators$1
+};
+
+const validators = validator.validators;
+
+/**
+ * Create a new instance of Axios
+ *
+ * @param {Object} instanceConfig The default config for the instance
+ *
+ * @return {Axios} A new instance of Axios
+ */
+class Axios {
+  constructor(instanceConfig) {
+    this.defaults = instanceConfig;
+    this.interceptors = {
+      request: new InterceptorManager$1(),
+      response: new InterceptorManager$1()
+    };
+  }
+
+  /**
+   * Dispatch a request
+   *
+   * @param {String|Object} configOrUrl The config specific for this request (merged with this.defaults)
+   * @param {?Object} config
+   *
+   * @returns {Promise} The Promise to be fulfilled
+   */
+  async request(configOrUrl, config) {
+    try {
+      return await this._request(configOrUrl, config);
+    } catch (err) {
+      if (err instanceof Error) {
+        let dummy = {};
+
+        Error.captureStackTrace ? Error.captureStackTrace(dummy) : (dummy = new Error());
+
+        // slice off the Error: ... line
+        const stack = dummy.stack ? dummy.stack.replace(/^.+\n/, '') : '';
+        try {
+          if (!err.stack) {
+            err.stack = stack;
+            // match without the 2 top stack lines
+          } else if (stack && !String(err.stack).endsWith(stack.replace(/^.+\n.+\n/, ''))) {
+            err.stack += '\n' + stack;
+          }
+        } catch (e) {
+          // ignore the case where "stack" is an un-writable property
+        }
+      }
+
+      throw err;
+    }
+  }
+
+  _request(configOrUrl, config) {
+    /*eslint no-param-reassign:0*/
+    // Allow for axios('example/url'[, config]) a la fetch API
+    if (typeof configOrUrl === 'string') {
+      config = config || {};
+      config.url = configOrUrl;
+    } else {
+      config = configOrUrl || {};
+    }
+
+    config = mergeConfig(this.defaults, config);
+
+    const {transitional, paramsSerializer, headers} = config;
+
+    if (transitional !== undefined) {
+      validator.assertOptions(transitional, {
+        silentJSONParsing: validators.transitional(validators.boolean),
+        forcedJSONParsing: validators.transitional(validators.boolean),
+        clarifyTimeoutError: validators.transitional(validators.boolean)
+      }, false);
+    }
+
+    if (paramsSerializer != null) {
+      if (utils$1.isFunction(paramsSerializer)) {
+        config.paramsSerializer = {
+          serialize: paramsSerializer
+        };
+      } else {
+        validator.assertOptions(paramsSerializer, {
+          encode: validators.function,
+          serialize: validators.function
+        }, true);
+      }
+    }
+
+    validator.assertOptions(config, {
+      baseUrl: validators.spelling('baseURL'),
+      withXsrfToken: validators.spelling('withXSRFToken')
+    }, true);
+
+    // Set config.method
+    config.method = (config.method || this.defaults.method || 'get').toLowerCase();
+
+    // Flatten headers
+    let contextHeaders = headers && utils$1.merge(
+      headers.common,
+      headers[config.method]
+    );
+
+    headers && utils$1.forEach(
+      ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],
+      (method) => {
+        delete headers[method];
+      }
+    );
+
+    config.headers = AxiosHeaders$1.concat(contextHeaders, headers);
+
+    // filter out skipped interceptors
+    const requestInterceptorChain = [];
+    let synchronousRequestInterceptors = true;
+    this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {
+      if (typeof interceptor.runWhen === 'function' && interceptor.runWhen(config) === false) {
+        return;
+      }
+
+      synchronousRequestInterceptors = synchronousRequestInterceptors && interceptor.synchronous;
+
+      requestInterceptorChain.unshift(interceptor.fulfilled, interceptor.rejected);
+    });
+
+    const responseInterceptorChain = [];
+    this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {
+      responseInterceptorChain.push(interceptor.fulfilled, interceptor.rejected);
+    });
+
+    let promise;
+    let i = 0;
+    let len;
+
+    if (!synchronousRequestInterceptors) {
+      const chain = [dispatchRequest.bind(this), undefined];
+      chain.unshift.apply(chain, requestInterceptorChain);
+      chain.push.apply(chain, responseInterceptorChain);
+      len = chain.length;
+
+      promise = Promise.resolve(config);
+
+      while (i < len) {
+        promise = promise.then(chain[i++], chain[i++]);
+      }
+
+      return promise;
+    }
+
+    len = requestInterceptorChain.length;
+
+    let newConfig = config;
+
+    i = 0;
+
+    while (i < len) {
+      const onFulfilled = requestInterceptorChain[i++];
+      const onRejected = requestInterceptorChain[i++];
+      try {
+        newConfig = onFulfilled(newConfig);
+      } catch (error) {
+        onRejected.call(this, error);
+        break;
+      }
+    }
+
+    try {
+      promise = dispatchRequest.call(this, newConfig);
+    } catch (error) {
+      return Promise.reject(error);
+    }
+
+    i = 0;
+    len = responseInterceptorChain.length;
+
+    while (i < len) {
+      promise = promise.then(responseInterceptorChain[i++], responseInterceptorChain[i++]);
+    }
+
+    return promise;
+  }
+
+  getUri(config) {
+    config = mergeConfig(this.defaults, config);
+    const fullPath = buildFullPath(config.baseURL, config.url);
+    return buildURL(fullPath, config.params, config.paramsSerializer);
+  }
+}
+
+// Provide aliases for supported request methods
+utils$1.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {
+  /*eslint func-names:0*/
+  Axios.prototype[method] = function(url, config) {
+    return this.request(mergeConfig(config || {}, {
+      method,
+      url,
+      data: (config || {}).data
+    }));
+  };
+});
+
+utils$1.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
+  /*eslint func-names:0*/
+
+  function generateHTTPMethod(isForm) {
+    return function httpMethod(url, data, config) {
+      return this.request(mergeConfig(config || {}, {
+        method,
+        headers: isForm ? {
+          'Content-Type': 'multipart/form-data'
+        } : {},
+        url,
+        data
+      }));
+    };
+  }
+
+  Axios.prototype[method] = generateHTTPMethod();
+
+  Axios.prototype[method + 'Form'] = generateHTTPMethod(true);
+});
+
+var Axios$1 = Axios;
+
+/**
+ * A `CancelToken` is an object that can be used to request cancellation of an operation.
+ *
+ * @param {Function} executor The executor function.
+ *
+ * @returns {CancelToken}
+ */
+class CancelToken {
+  constructor(executor) {
+    if (typeof executor !== 'function') {
+      throw new TypeError('executor must be a function.');
+    }
+
+    let resolvePromise;
+
+    this.promise = new Promise(function promiseExecutor(resolve) {
+      resolvePromise = resolve;
+    });
+
+    const token = this;
+
+    // eslint-disable-next-line func-names
+    this.promise.then(cancel => {
+      if (!token._listeners) return;
+
+      let i = token._listeners.length;
+
+      while (i-- > 0) {
+        token._listeners[i](cancel);
+      }
+      token._listeners = null;
+    });
+
+    // eslint-disable-next-line func-names
+    this.promise.then = onfulfilled => {
+      let _resolve;
+      // eslint-disable-next-line func-names
+      const promise = new Promise(resolve => {
+        token.subscribe(resolve);
+        _resolve = resolve;
+      }).then(onfulfilled);
+
+      promise.cancel = function reject() {
+        token.unsubscribe(_resolve);
+      };
+
+      return promise;
+    };
+
+    executor(function cancel(message, config, request) {
+      if (token.reason) {
+        // Cancellation has already been requested
+        return;
+      }
+
+      token.reason = new CanceledError(message, config, request);
+      resolvePromise(token.reason);
+    });
+  }
+
+  /**
+   * Throws a `CanceledError` if cancellation has been requested.
+   */
+  throwIfRequested() {
+    if (this.reason) {
+      throw this.reason;
+    }
+  }
+
+  /**
+   * Subscribe to the cancel signal
+   */
+
+  subscribe(listener) {
+    if (this.reason) {
+      listener(this.reason);
+      return;
+    }
+
+    if (this._listeners) {
+      this._listeners.push(listener);
+    } else {
+      this._listeners = [listener];
+    }
+  }
+
+  /**
+   * Unsubscribe from the cancel signal
+   */
+
+  unsubscribe(listener) {
+    if (!this._listeners) {
+      return;
+    }
+    const index = this._listeners.indexOf(listener);
+    if (index !== -1) {
+      this._listeners.splice(index, 1);
+    }
+  }
+
+  toAbortSignal() {
+    const controller = new AbortController();
+
+    const abort = (err) => {
+      controller.abort(err);
+    };
+
+    this.subscribe(abort);
+
+    controller.signal.unsubscribe = () => this.unsubscribe(abort);
+
+    return controller.signal;
+  }
+
+  /**
+   * Returns an object that contains a new `CancelToken` and a function that, when called,
+   * cancels the `CancelToken`.
+   */
+  static source() {
+    let cancel;
+    const token = new CancelToken(function executor(c) {
+      cancel = c;
+    });
+    return {
+      token,
+      cancel
+    };
+  }
+}
+
+var CancelToken$1 = CancelToken;
+
+/**
+ * Syntactic sugar for invoking a function and expanding an array for arguments.
+ *
+ * Common use case would be to use `Function.prototype.apply`.
+ *
+ *  ```js
+ *  function f(x, y, z) {}
+ *  var args = [1, 2, 3];
+ *  f.apply(null, args);
+ *  ```
+ *
+ * With `spread` this example can be re-written.
+ *
+ *  ```js
+ *  spread(function(x, y, z) {})([1, 2, 3]);
+ *  ```
+ *
+ * @param {Function} callback
+ *
+ * @returns {Function}
+ */
+function spread(callback) {
+  return function wrap(arr) {
+    return callback.apply(null, arr);
+  };
+}
+
+/**
+ * Determines whether the payload is an error thrown by Axios
+ *
+ * @param {*} payload The value to test
+ *
+ * @returns {boolean} True if the payload is an error thrown by Axios, otherwise false
+ */
+function isAxiosError(payload) {
+  return utils$1.isObject(payload) && (payload.isAxiosError === true);
+}
+
+const HttpStatusCode = {
+  Continue: 100,
+  SwitchingProtocols: 101,
+  Processing: 102,
+  EarlyHints: 103,
+  Ok: 200,
+  Created: 201,
+  Accepted: 202,
+  NonAuthoritativeInformation: 203,
+  NoContent: 204,
+  ResetContent: 205,
+  PartialContent: 206,
+  MultiStatus: 207,
+  AlreadyReported: 208,
+  ImUsed: 226,
+  MultipleChoices: 300,
+  MovedPermanently: 301,
+  Found: 302,
+  SeeOther: 303,
+  NotModified: 304,
+  UseProxy: 305,
+  Unused: 306,
+  TemporaryRedirect: 307,
+  PermanentRedirect: 308,
+  BadRequest: 400,
+  Unauthorized: 401,
+  PaymentRequired: 402,
+  Forbidden: 403,
+  NotFound: 404,
+  MethodNotAllowed: 405,
+  NotAcceptable: 406,
+  ProxyAuthenticationRequired: 407,
+  RequestTimeout: 408,
+  Conflict: 409,
+  Gone: 410,
+  LengthRequired: 411,
+  PreconditionFailed: 412,
+  PayloadTooLarge: 413,
+  UriTooLong: 414,
+  UnsupportedMediaType: 415,
+  RangeNotSatisfiable: 416,
+  ExpectationFailed: 417,
+  ImATeapot: 418,
+  MisdirectedRequest: 421,
+  UnprocessableEntity: 422,
+  Locked: 423,
+  FailedDependency: 424,
+  TooEarly: 425,
+  UpgradeRequired: 426,
+  PreconditionRequired: 428,
+  TooManyRequests: 429,
+  RequestHeaderFieldsTooLarge: 431,
+  UnavailableForLegalReasons: 451,
+  InternalServerError: 500,
+  NotImplemented: 501,
+  BadGateway: 502,
+  ServiceUnavailable: 503,
+  GatewayTimeout: 504,
+  HttpVersionNotSupported: 505,
+  VariantAlsoNegotiates: 506,
+  InsufficientStorage: 507,
+  LoopDetected: 508,
+  NotExtended: 510,
+  NetworkAuthenticationRequired: 511,
+};
+
+Object.entries(HttpStatusCode).forEach(([key, value]) => {
+  HttpStatusCode[value] = key;
+});
+
+var HttpStatusCode$1 = HttpStatusCode;
+
+/**
+ * Create an instance of Axios
+ *
+ * @param {Object} defaultConfig The default config for the instance
+ *
+ * @returns {Axios} A new instance of Axios
+ */
+function createInstance(defaultConfig) {
+  const context = new Axios$1(defaultConfig);
+  const instance = bind(Axios$1.prototype.request, context);
+
+  // Copy axios.prototype to instance
+  utils$1.extend(instance, Axios$1.prototype, context, {allOwnKeys: true});
+
+  // Copy context to instance
+  utils$1.extend(instance, context, null, {allOwnKeys: true});
+
+  // Factory for creating new instances
+  instance.create = function create(instanceConfig) {
+    return createInstance(mergeConfig(defaultConfig, instanceConfig));
+  };
+
+  return instance;
+}
+
+// Create the default instance to be exported
+const axios = createInstance(defaults$1);
+
+// Expose Axios class to allow class inheritance
+axios.Axios = Axios$1;
+
+// Expose Cancel & CancelToken
+axios.CanceledError = CanceledError;
+axios.CancelToken = CancelToken$1;
+axios.isCancel = isCancel;
+axios.VERSION = VERSION;
+axios.toFormData = toFormData;
+
+// Expose AxiosError class
+axios.AxiosError = AxiosError;
+
+// alias for CanceledError for backward compatibility
+axios.Cancel = axios.CanceledError;
+
+// Expose all/spread
+axios.all = function all(promises) {
+  return Promise.all(promises);
+};
+
+axios.spread = spread;
+
+// Expose isAxiosError
+axios.isAxiosError = isAxiosError;
+
+// Expose mergeConfig
+axios.mergeConfig = mergeConfig;
+
+axios.AxiosHeaders = AxiosHeaders$1;
+
+axios.formToJSON = thing => formDataToJSON(utils$1.isHTMLForm(thing) ? new FormData(thing) : thing);
+
+axios.getAdapter = adapters.getAdapter;
+
+axios.HttpStatusCode = HttpStatusCode$1;
+
+axios.default = axios;
+
+module.exports = axios;
+//# sourceMappingURL=axios.cjs.map
diff --git a/backend/node_modules/axios/dist/browser/axios.cjs.map b/backend/node_modules/axios/dist/browser/axios.cjs.map
new file mode 100644
index 0000000..f1be83d
--- /dev/null
+++ b/backend/node_modules/axios/dist/browser/axios.cjs.map
@@ -0,0 +1 @@
+{"version":3,"file":"axios.cjs","sources":["../../lib/helpers/bind.js","../../lib/utils.js","../../lib/core/AxiosError.js","../../lib/helpers/null.js","../../lib/helpers/toFormData.js","../../lib/helpers/AxiosURLSearchParams.js","../../lib/helpers/buildURL.js","../../lib/core/InterceptorManager.js","../../lib/defaults/transitional.js","../../lib/platform/browser/classes/URLSearchParams.js","../../lib/platform/browser/classes/FormData.js","../../lib/platform/browser/classes/Blob.js","../../lib/platform/browser/index.js","../../lib/platform/common/utils.js","../../lib/platform/index.js","../../lib/helpers/toURLEncodedForm.js","../../lib/helpers/formDataToJSON.js","../../lib/defaults/index.js","../../lib/helpers/parseHeaders.js","../../lib/core/AxiosHeaders.js","../../lib/core/transformData.js","../../lib/cancel/isCancel.js","../../lib/cancel/CanceledError.js","../../lib/core/settle.js","../../lib/helpers/parseProtocol.js","../../lib/helpers/speedometer.js","../../lib/helpers/throttle.js","../../lib/helpers/progressEventReducer.js","../../lib/helpers/isURLSameOrigin.js","../../lib/helpers/cookies.js","../../lib/helpers/isAbsoluteURL.js","../../lib/helpers/combineURLs.js","../../lib/core/buildFullPath.js","../../lib/core/mergeConfig.js","../../lib/helpers/resolveConfig.js","../../lib/adapters/xhr.js","../../lib/helpers/composeSignals.js","../../lib/helpers/trackStream.js","../../lib/adapters/fetch.js","../../lib/adapters/adapters.js","../../lib/core/dispatchRequest.js","../../lib/env/data.js","../../lib/helpers/validator.js","../../lib/core/Axios.js","../../lib/cancel/CancelToken.js","../../lib/helpers/spread.js","../../lib/helpers/isAxiosError.js","../../lib/helpers/HttpStatusCode.js","../../lib/axios.js"],"sourcesContent":["'use strict';\n\nexport default function bind(fn, thisArg) {\n  return function wrap() {\n    return fn.apply(thisArg, arguments);\n  };\n}\n","'use strict';\n\nimport bind from './helpers/bind.js';\n\n// utils is a library of generic helper functions non-specific to axios\n\nconst {toString} = Object.prototype;\nconst {getPrototypeOf} = Object;\n\nconst kindOf = (cache => thing => {\n    const str = toString.call(thing);\n    return cache[str] || (cache[str] = str.slice(8, -1).toLowerCase());\n})(Object.create(null));\n\nconst kindOfTest = (type) => {\n  type = type.toLowerCase();\n  return (thing) => kindOf(thing) === type\n}\n\nconst typeOfTest = type => thing => typeof thing === type;\n\n/**\n * Determine if a value is an Array\n *\n * @param {Object} val The value to test\n *\n * @returns {boolean} True if value is an Array, otherwise false\n */\nconst {isArray} = Array;\n\n/**\n * Determine if a value is undefined\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if the value is undefined, otherwise false\n */\nconst isUndefined = typeOfTest('undefined');\n\n/**\n * Determine if a value is a Buffer\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Buffer, otherwise false\n */\nfunction isBuffer(val) {\n  return val !== null && !isUndefined(val) && val.constructor !== null && !isUndefined(val.constructor)\n    && isFunction(val.constructor.isBuffer) && val.constructor.isBuffer(val);\n}\n\n/**\n * Determine if a value is an ArrayBuffer\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is an ArrayBuffer, otherwise false\n */\nconst isArrayBuffer = kindOfTest('ArrayBuffer');\n\n\n/**\n * Determine if a value is a view on an ArrayBuffer\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false\n */\nfunction isArrayBufferView(val) {\n  let result;\n  if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) {\n    result = ArrayBuffer.isView(val);\n  } else {\n    result = (val) && (val.buffer) && (isArrayBuffer(val.buffer));\n  }\n  return result;\n}\n\n/**\n * Determine if a value is a String\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a String, otherwise false\n */\nconst isString = typeOfTest('string');\n\n/**\n * Determine if a value is a Function\n *\n * @param {*} val The value to test\n * @returns {boolean} True if value is a Function, otherwise false\n */\nconst isFunction = typeOfTest('function');\n\n/**\n * Determine if a value is a Number\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Number, otherwise false\n */\nconst isNumber = typeOfTest('number');\n\n/**\n * Determine if a value is an Object\n *\n * @param {*} thing The value to test\n *\n * @returns {boolean} True if value is an Object, otherwise false\n */\nconst isObject = (thing) => thing !== null && typeof thing === 'object';\n\n/**\n * Determine if a value is a Boolean\n *\n * @param {*} thing The value to test\n * @returns {boolean} True if value is a Boolean, otherwise false\n */\nconst isBoolean = thing => thing === true || thing === false;\n\n/**\n * Determine if a value is a plain Object\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a plain Object, otherwise false\n */\nconst isPlainObject = (val) => {\n  if (kindOf(val) !== 'object') {\n    return false;\n  }\n\n  const prototype = getPrototypeOf(val);\n  return (prototype === null || prototype === Object.prototype || Object.getPrototypeOf(prototype) === null) && !(Symbol.toStringTag in val) && !(Symbol.iterator in val);\n}\n\n/**\n * Determine if a value is a Date\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Date, otherwise false\n */\nconst isDate = kindOfTest('Date');\n\n/**\n * Determine if a value is a File\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a File, otherwise false\n */\nconst isFile = kindOfTest('File');\n\n/**\n * Determine if a value is a Blob\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Blob, otherwise false\n */\nconst isBlob = kindOfTest('Blob');\n\n/**\n * Determine if a value is a FileList\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a File, otherwise false\n */\nconst isFileList = kindOfTest('FileList');\n\n/**\n * Determine if a value is a Stream\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Stream, otherwise false\n */\nconst isStream = (val) => isObject(val) && isFunction(val.pipe);\n\n/**\n * Determine if a value is a FormData\n *\n * @param {*} thing The value to test\n *\n * @returns {boolean} True if value is an FormData, otherwise false\n */\nconst isFormData = (thing) => {\n  let kind;\n  return thing && (\n    (typeof FormData === 'function' && thing instanceof FormData) || (\n      isFunction(thing.append) && (\n        (kind = kindOf(thing)) === 'formdata' ||\n        // detect form-data instance\n        (kind === 'object' && isFunction(thing.toString) && thing.toString() === '[object FormData]')\n      )\n    )\n  )\n}\n\n/**\n * Determine if a value is a URLSearchParams object\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a URLSearchParams object, otherwise false\n */\nconst isURLSearchParams = kindOfTest('URLSearchParams');\n\nconst [isReadableStream, isRequest, isResponse, isHeaders] = ['ReadableStream', 'Request', 'Response', 'Headers'].map(kindOfTest);\n\n/**\n * Trim excess whitespace off the beginning and end of a string\n *\n * @param {String} str The String to trim\n *\n * @returns {String} The String freed of excess whitespace\n */\nconst trim = (str) => str.trim ?\n  str.trim() : str.replace(/^[\\s\\uFEFF\\xA0]+|[\\s\\uFEFF\\xA0]+$/g, '');\n\n/**\n * Iterate over an Array or an Object invoking a function for each item.\n *\n * If `obj` is an Array callback will be called passing\n * the value, index, and complete array for each item.\n *\n * If 'obj' is an Object callback will be called passing\n * the value, key, and complete object for each property.\n *\n * @param {Object|Array} obj The object to iterate\n * @param {Function} fn The callback to invoke for each item\n *\n * @param {Boolean} [allOwnKeys = false]\n * @returns {any}\n */\nfunction forEach(obj, fn, {allOwnKeys = false} = {}) {\n  // Don't bother if no value provided\n  if (obj === null || typeof obj === 'undefined') {\n    return;\n  }\n\n  let i;\n  let l;\n\n  // Force an array if not already something iterable\n  if (typeof obj !== 'object') {\n    /*eslint no-param-reassign:0*/\n    obj = [obj];\n  }\n\n  if (isArray(obj)) {\n    // Iterate over array values\n    for (i = 0, l = obj.length; i < l; i++) {\n      fn.call(null, obj[i], i, obj);\n    }\n  } else {\n    // Iterate over object keys\n    const keys = allOwnKeys ? Object.getOwnPropertyNames(obj) : Object.keys(obj);\n    const len = keys.length;\n    let key;\n\n    for (i = 0; i < len; i++) {\n      key = keys[i];\n      fn.call(null, obj[key], key, obj);\n    }\n  }\n}\n\nfunction findKey(obj, key) {\n  key = key.toLowerCase();\n  const keys = Object.keys(obj);\n  let i = keys.length;\n  let _key;\n  while (i-- > 0) {\n    _key = keys[i];\n    if (key === _key.toLowerCase()) {\n      return _key;\n    }\n  }\n  return null;\n}\n\nconst _global = (() => {\n  /*eslint no-undef:0*/\n  if (typeof globalThis !== \"undefined\") return globalThis;\n  return typeof self !== \"undefined\" ? self : (typeof window !== 'undefined' ? window : global)\n})();\n\nconst isContextDefined = (context) => !isUndefined(context) && context !== _global;\n\n/**\n * Accepts varargs expecting each argument to be an object, then\n * immutably merges the properties of each object and returns result.\n *\n * When multiple objects contain the same key the later object in\n * the arguments list will take precedence.\n *\n * Example:\n *\n * ```js\n * var result = merge({foo: 123}, {foo: 456});\n * console.log(result.foo); // outputs 456\n * ```\n *\n * @param {Object} obj1 Object to merge\n *\n * @returns {Object} Result of all merge properties\n */\nfunction merge(/* obj1, obj2, obj3, ... */) {\n  const {caseless} = isContextDefined(this) && this || {};\n  const result = {};\n  const assignValue = (val, key) => {\n    const targetKey = caseless && findKey(result, key) || key;\n    if (isPlainObject(result[targetKey]) && isPlainObject(val)) {\n      result[targetKey] = merge(result[targetKey], val);\n    } else if (isPlainObject(val)) {\n      result[targetKey] = merge({}, val);\n    } else if (isArray(val)) {\n      result[targetKey] = val.slice();\n    } else {\n      result[targetKey] = val;\n    }\n  }\n\n  for (let i = 0, l = arguments.length; i < l; i++) {\n    arguments[i] && forEach(arguments[i], assignValue);\n  }\n  return result;\n}\n\n/**\n * Extends object a by mutably adding to it the properties of object b.\n *\n * @param {Object} a The object to be extended\n * @param {Object} b The object to copy properties from\n * @param {Object} thisArg The object to bind function to\n *\n * @param {Boolean} [allOwnKeys]\n * @returns {Object} The resulting value of object a\n */\nconst extend = (a, b, thisArg, {allOwnKeys}= {}) => {\n  forEach(b, (val, key) => {\n    if (thisArg && isFunction(val)) {\n      a[key] = bind(val, thisArg);\n    } else {\n      a[key] = val;\n    }\n  }, {allOwnKeys});\n  return a;\n}\n\n/**\n * Remove byte order marker. This catches EF BB BF (the UTF-8 BOM)\n *\n * @param {string} content with BOM\n *\n * @returns {string} content value without BOM\n */\nconst stripBOM = (content) => {\n  if (content.charCodeAt(0) === 0xFEFF) {\n    content = content.slice(1);\n  }\n  return content;\n}\n\n/**\n * Inherit the prototype methods from one constructor into another\n * @param {function} constructor\n * @param {function} superConstructor\n * @param {object} [props]\n * @param {object} [descriptors]\n *\n * @returns {void}\n */\nconst inherits = (constructor, superConstructor, props, descriptors) => {\n  constructor.prototype = Object.create(superConstructor.prototype, descriptors);\n  constructor.prototype.constructor = constructor;\n  Object.defineProperty(constructor, 'super', {\n    value: superConstructor.prototype\n  });\n  props && Object.assign(constructor.prototype, props);\n}\n\n/**\n * Resolve object with deep prototype chain to a flat object\n * @param {Object} sourceObj source object\n * @param {Object} [destObj]\n * @param {Function|Boolean} [filter]\n * @param {Function} [propFilter]\n *\n * @returns {Object}\n */\nconst toFlatObject = (sourceObj, destObj, filter, propFilter) => {\n  let props;\n  let i;\n  let prop;\n  const merged = {};\n\n  destObj = destObj || {};\n  // eslint-disable-next-line no-eq-null,eqeqeq\n  if (sourceObj == null) return destObj;\n\n  do {\n    props = Object.getOwnPropertyNames(sourceObj);\n    i = props.length;\n    while (i-- > 0) {\n      prop = props[i];\n      if ((!propFilter || propFilter(prop, sourceObj, destObj)) && !merged[prop]) {\n        destObj[prop] = sourceObj[prop];\n        merged[prop] = true;\n      }\n    }\n    sourceObj = filter !== false && getPrototypeOf(sourceObj);\n  } while (sourceObj && (!filter || filter(sourceObj, destObj)) && sourceObj !== Object.prototype);\n\n  return destObj;\n}\n\n/**\n * Determines whether a string ends with the characters of a specified string\n *\n * @param {String} str\n * @param {String} searchString\n * @param {Number} [position= 0]\n *\n * @returns {boolean}\n */\nconst endsWith = (str, searchString, position) => {\n  str = String(str);\n  if (position === undefined || position > str.length) {\n    position = str.length;\n  }\n  position -= searchString.length;\n  const lastIndex = str.indexOf(searchString, position);\n  return lastIndex !== -1 && lastIndex === position;\n}\n\n\n/**\n * Returns new array from array like object or null if failed\n *\n * @param {*} [thing]\n *\n * @returns {?Array}\n */\nconst toArray = (thing) => {\n  if (!thing) return null;\n  if (isArray(thing)) return thing;\n  let i = thing.length;\n  if (!isNumber(i)) return null;\n  const arr = new Array(i);\n  while (i-- > 0) {\n    arr[i] = thing[i];\n  }\n  return arr;\n}\n\n/**\n * Checking if the Uint8Array exists and if it does, it returns a function that checks if the\n * thing passed in is an instance of Uint8Array\n *\n * @param {TypedArray}\n *\n * @returns {Array}\n */\n// eslint-disable-next-line func-names\nconst isTypedArray = (TypedArray => {\n  // eslint-disable-next-line func-names\n  return thing => {\n    return TypedArray && thing instanceof TypedArray;\n  };\n})(typeof Uint8Array !== 'undefined' && getPrototypeOf(Uint8Array));\n\n/**\n * For each entry in the object, call the function with the key and value.\n *\n * @param {Object<any, any>} obj - The object to iterate over.\n * @param {Function} fn - The function to call for each entry.\n *\n * @returns {void}\n */\nconst forEachEntry = (obj, fn) => {\n  const generator = obj && obj[Symbol.iterator];\n\n  const iterator = generator.call(obj);\n\n  let result;\n\n  while ((result = iterator.next()) && !result.done) {\n    const pair = result.value;\n    fn.call(obj, pair[0], pair[1]);\n  }\n}\n\n/**\n * It takes a regular expression and a string, and returns an array of all the matches\n *\n * @param {string} regExp - The regular expression to match against.\n * @param {string} str - The string to search.\n *\n * @returns {Array<boolean>}\n */\nconst matchAll = (regExp, str) => {\n  let matches;\n  const arr = [];\n\n  while ((matches = regExp.exec(str)) !== null) {\n    arr.push(matches);\n  }\n\n  return arr;\n}\n\n/* Checking if the kindOfTest function returns true when passed an HTMLFormElement. */\nconst isHTMLForm = kindOfTest('HTMLFormElement');\n\nconst toCamelCase = str => {\n  return str.toLowerCase().replace(/[-_\\s]([a-z\\d])(\\w*)/g,\n    function replacer(m, p1, p2) {\n      return p1.toUpperCase() + p2;\n    }\n  );\n};\n\n/* Creating a function that will check if an object has a property. */\nconst hasOwnProperty = (({hasOwnProperty}) => (obj, prop) => hasOwnProperty.call(obj, prop))(Object.prototype);\n\n/**\n * Determine if a value is a RegExp object\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a RegExp object, otherwise false\n */\nconst isRegExp = kindOfTest('RegExp');\n\nconst reduceDescriptors = (obj, reducer) => {\n  const descriptors = Object.getOwnPropertyDescriptors(obj);\n  const reducedDescriptors = {};\n\n  forEach(descriptors, (descriptor, name) => {\n    let ret;\n    if ((ret = reducer(descriptor, name, obj)) !== false) {\n      reducedDescriptors[name] = ret || descriptor;\n    }\n  });\n\n  Object.defineProperties(obj, reducedDescriptors);\n}\n\n/**\n * Makes all methods read-only\n * @param {Object} obj\n */\n\nconst freezeMethods = (obj) => {\n  reduceDescriptors(obj, (descriptor, name) => {\n    // skip restricted props in strict mode\n    if (isFunction(obj) && ['arguments', 'caller', 'callee'].indexOf(name) !== -1) {\n      return false;\n    }\n\n    const value = obj[name];\n\n    if (!isFunction(value)) return;\n\n    descriptor.enumerable = false;\n\n    if ('writable' in descriptor) {\n      descriptor.writable = false;\n      return;\n    }\n\n    if (!descriptor.set) {\n      descriptor.set = () => {\n        throw Error('Can not rewrite read-only method \\'' + name + '\\'');\n      };\n    }\n  });\n}\n\nconst toObjectSet = (arrayOrString, delimiter) => {\n  const obj = {};\n\n  const define = (arr) => {\n    arr.forEach(value => {\n      obj[value] = true;\n    });\n  }\n\n  isArray(arrayOrString) ? define(arrayOrString) : define(String(arrayOrString).split(delimiter));\n\n  return obj;\n}\n\nconst noop = () => {}\n\nconst toFiniteNumber = (value, defaultValue) => {\n  return value != null && Number.isFinite(value = +value) ? value : defaultValue;\n}\n\nconst ALPHA = 'abcdefghijklmnopqrstuvwxyz'\n\nconst DIGIT = '0123456789';\n\nconst ALPHABET = {\n  DIGIT,\n  ALPHA,\n  ALPHA_DIGIT: ALPHA + ALPHA.toUpperCase() + DIGIT\n}\n\nconst generateString = (size = 16, alphabet = ALPHABET.ALPHA_DIGIT) => {\n  let str = '';\n  const {length} = alphabet;\n  while (size--) {\n    str += alphabet[Math.random() * length|0]\n  }\n\n  return str;\n}\n\n/**\n * If the thing is a FormData object, return true, otherwise return false.\n *\n * @param {unknown} thing - The thing to check.\n *\n * @returns {boolean}\n */\nfunction isSpecCompliantForm(thing) {\n  return !!(thing && isFunction(thing.append) && thing[Symbol.toStringTag] === 'FormData' && thing[Symbol.iterator]);\n}\n\nconst toJSONObject = (obj) => {\n  const stack = new Array(10);\n\n  const visit = (source, i) => {\n\n    if (isObject(source)) {\n      if (stack.indexOf(source) >= 0) {\n        return;\n      }\n\n      if(!('toJSON' in source)) {\n        stack[i] = source;\n        const target = isArray(source) ? [] : {};\n\n        forEach(source, (value, key) => {\n          const reducedValue = visit(value, i + 1);\n          !isUndefined(reducedValue) && (target[key] = reducedValue);\n        });\n\n        stack[i] = undefined;\n\n        return target;\n      }\n    }\n\n    return source;\n  }\n\n  return visit(obj, 0);\n}\n\nconst isAsyncFn = kindOfTest('AsyncFunction');\n\nconst isThenable = (thing) =>\n  thing && (isObject(thing) || isFunction(thing)) && isFunction(thing.then) && isFunction(thing.catch);\n\n// original code\n// https://github.com/DigitalBrainJS/AxiosPromise/blob/16deab13710ec09779922131f3fa5954320f83ab/lib/utils.js#L11-L34\n\nconst _setImmediate = ((setImmediateSupported, postMessageSupported) => {\n  if (setImmediateSupported) {\n    return setImmediate;\n  }\n\n  return postMessageSupported ? ((token, callbacks) => {\n    _global.addEventListener(\"message\", ({source, data}) => {\n      if (source === _global && data === token) {\n        callbacks.length && callbacks.shift()();\n      }\n    }, false);\n\n    return (cb) => {\n      callbacks.push(cb);\n      _global.postMessage(token, \"*\");\n    }\n  })(`axios@${Math.random()}`, []) : (cb) => setTimeout(cb);\n})(\n  typeof setImmediate === 'function',\n  isFunction(_global.postMessage)\n);\n\nconst asap = typeof queueMicrotask !== 'undefined' ?\n  queueMicrotask.bind(_global) : ( typeof process !== 'undefined' && process.nextTick || _setImmediate);\n\n// *********************\n\nexport default {\n  isArray,\n  isArrayBuffer,\n  isBuffer,\n  isFormData,\n  isArrayBufferView,\n  isString,\n  isNumber,\n  isBoolean,\n  isObject,\n  isPlainObject,\n  isReadableStream,\n  isRequest,\n  isResponse,\n  isHeaders,\n  isUndefined,\n  isDate,\n  isFile,\n  isBlob,\n  isRegExp,\n  isFunction,\n  isStream,\n  isURLSearchParams,\n  isTypedArray,\n  isFileList,\n  forEach,\n  merge,\n  extend,\n  trim,\n  stripBOM,\n  inherits,\n  toFlatObject,\n  kindOf,\n  kindOfTest,\n  endsWith,\n  toArray,\n  forEachEntry,\n  matchAll,\n  isHTMLForm,\n  hasOwnProperty,\n  hasOwnProp: hasOwnProperty, // an alias to avoid ESLint no-prototype-builtins detection\n  reduceDescriptors,\n  freezeMethods,\n  toObjectSet,\n  toCamelCase,\n  noop,\n  toFiniteNumber,\n  findKey,\n  global: _global,\n  isContextDefined,\n  ALPHABET,\n  generateString,\n  isSpecCompliantForm,\n  toJSONObject,\n  isAsyncFn,\n  isThenable,\n  setImmediate: _setImmediate,\n  asap\n};\n","'use strict';\n\nimport utils from '../utils.js';\n\n/**\n * Create an Error with the specified message, config, error code, request and response.\n *\n * @param {string} message The error message.\n * @param {string} [code] The error code (for example, 'ECONNABORTED').\n * @param {Object} [config] The config.\n * @param {Object} [request] The request.\n * @param {Object} [response] The response.\n *\n * @returns {Error} The created error.\n */\nfunction AxiosError(message, code, config, request, response) {\n  Error.call(this);\n\n  if (Error.captureStackTrace) {\n    Error.captureStackTrace(this, this.constructor);\n  } else {\n    this.stack = (new Error()).stack;\n  }\n\n  this.message = message;\n  this.name = 'AxiosError';\n  code && (this.code = code);\n  config && (this.config = config);\n  request && (this.request = request);\n  if (response) {\n    this.response = response;\n    this.status = response.status ? response.status : null;\n  }\n}\n\nutils.inherits(AxiosError, Error, {\n  toJSON: function toJSON() {\n    return {\n      // Standard\n      message: this.message,\n      name: this.name,\n      // Microsoft\n      description: this.description,\n      number: this.number,\n      // Mozilla\n      fileName: this.fileName,\n      lineNumber: this.lineNumber,\n      columnNumber: this.columnNumber,\n      stack: this.stack,\n      // Axios\n      config: utils.toJSONObject(this.config),\n      code: this.code,\n      status: this.status\n    };\n  }\n});\n\nconst prototype = AxiosError.prototype;\nconst descriptors = {};\n\n[\n  'ERR_BAD_OPTION_VALUE',\n  'ERR_BAD_OPTION',\n  'ECONNABORTED',\n  'ETIMEDOUT',\n  'ERR_NETWORK',\n  'ERR_FR_TOO_MANY_REDIRECTS',\n  'ERR_DEPRECATED',\n  'ERR_BAD_RESPONSE',\n  'ERR_BAD_REQUEST',\n  'ERR_CANCELED',\n  'ERR_NOT_SUPPORT',\n  'ERR_INVALID_URL'\n// eslint-disable-next-line func-names\n].forEach(code => {\n  descriptors[code] = {value: code};\n});\n\nObject.defineProperties(AxiosError, descriptors);\nObject.defineProperty(prototype, 'isAxiosError', {value: true});\n\n// eslint-disable-next-line func-names\nAxiosError.from = (error, code, config, request, response, customProps) => {\n  const axiosError = Object.create(prototype);\n\n  utils.toFlatObject(error, axiosError, function filter(obj) {\n    return obj !== Error.prototype;\n  }, prop => {\n    return prop !== 'isAxiosError';\n  });\n\n  AxiosError.call(axiosError, error.message, code, config, request, response);\n\n  axiosError.cause = error;\n\n  axiosError.name = error.name;\n\n  customProps && Object.assign(axiosError, customProps);\n\n  return axiosError;\n};\n\nexport default AxiosError;\n","// eslint-disable-next-line strict\nexport default null;\n","'use strict';\n\nimport utils from '../utils.js';\nimport AxiosError from '../core/AxiosError.js';\n// temporary hotfix to avoid circular references until AxiosURLSearchParams is refactored\nimport PlatformFormData from '../platform/node/classes/FormData.js';\n\n/**\n * Determines if the given thing is a array or js object.\n *\n * @param {string} thing - The object or array to be visited.\n *\n * @returns {boolean}\n */\nfunction isVisitable(thing) {\n  return utils.isPlainObject(thing) || utils.isArray(thing);\n}\n\n/**\n * It removes the brackets from the end of a string\n *\n * @param {string} key - The key of the parameter.\n *\n * @returns {string} the key without the brackets.\n */\nfunction removeBrackets(key) {\n  return utils.endsWith(key, '[]') ? key.slice(0, -2) : key;\n}\n\n/**\n * It takes a path, a key, and a boolean, and returns a string\n *\n * @param {string} path - The path to the current key.\n * @param {string} key - The key of the current object being iterated over.\n * @param {string} dots - If true, the key will be rendered with dots instead of brackets.\n *\n * @returns {string} The path to the current key.\n */\nfunction renderKey(path, key, dots) {\n  if (!path) return key;\n  return path.concat(key).map(function each(token, i) {\n    // eslint-disable-next-line no-param-reassign\n    token = removeBrackets(token);\n    return !dots && i ? '[' + token + ']' : token;\n  }).join(dots ? '.' : '');\n}\n\n/**\n * If the array is an array and none of its elements are visitable, then it's a flat array.\n *\n * @param {Array<any>} arr - The array to check\n *\n * @returns {boolean}\n */\nfunction isFlatArray(arr) {\n  return utils.isArray(arr) && !arr.some(isVisitable);\n}\n\nconst predicates = utils.toFlatObject(utils, {}, null, function filter(prop) {\n  return /^is[A-Z]/.test(prop);\n});\n\n/**\n * Convert a data object to FormData\n *\n * @param {Object} obj\n * @param {?Object} [formData]\n * @param {?Object} [options]\n * @param {Function} [options.visitor]\n * @param {Boolean} [options.metaTokens = true]\n * @param {Boolean} [options.dots = false]\n * @param {?Boolean} [options.indexes = false]\n *\n * @returns {Object}\n **/\n\n/**\n * It converts an object into a FormData object\n *\n * @param {Object<any, any>} obj - The object to convert to form data.\n * @param {string} formData - The FormData object to append to.\n * @param {Object<string, any>} options\n *\n * @returns\n */\nfunction toFormData(obj, formData, options) {\n  if (!utils.isObject(obj)) {\n    throw new TypeError('target must be an object');\n  }\n\n  // eslint-disable-next-line no-param-reassign\n  formData = formData || new (PlatformFormData || FormData)();\n\n  // eslint-disable-next-line no-param-reassign\n  options = utils.toFlatObject(options, {\n    metaTokens: true,\n    dots: false,\n    indexes: false\n  }, false, function defined(option, source) {\n    // eslint-disable-next-line no-eq-null,eqeqeq\n    return !utils.isUndefined(source[option]);\n  });\n\n  const metaTokens = options.metaTokens;\n  // eslint-disable-next-line no-use-before-define\n  const visitor = options.visitor || defaultVisitor;\n  const dots = options.dots;\n  const indexes = options.indexes;\n  const _Blob = options.Blob || typeof Blob !== 'undefined' && Blob;\n  const useBlob = _Blob && utils.isSpecCompliantForm(formData);\n\n  if (!utils.isFunction(visitor)) {\n    throw new TypeError('visitor must be a function');\n  }\n\n  function convertValue(value) {\n    if (value === null) return '';\n\n    if (utils.isDate(value)) {\n      return value.toISOString();\n    }\n\n    if (!useBlob && utils.isBlob(value)) {\n      throw new AxiosError('Blob is not supported. Use a Buffer instead.');\n    }\n\n    if (utils.isArrayBuffer(value) || utils.isTypedArray(value)) {\n      return useBlob && typeof Blob === 'function' ? new Blob([value]) : Buffer.from(value);\n    }\n\n    return value;\n  }\n\n  /**\n   * Default visitor.\n   *\n   * @param {*} value\n   * @param {String|Number} key\n   * @param {Array<String|Number>} path\n   * @this {FormData}\n   *\n   * @returns {boolean} return true to visit the each prop of the value recursively\n   */\n  function defaultVisitor(value, key, path) {\n    let arr = value;\n\n    if (value && !path && typeof value === 'object') {\n      if (utils.endsWith(key, '{}')) {\n        // eslint-disable-next-line no-param-reassign\n        key = metaTokens ? key : key.slice(0, -2);\n        // eslint-disable-next-line no-param-reassign\n        value = JSON.stringify(value);\n      } else if (\n        (utils.isArray(value) && isFlatArray(value)) ||\n        ((utils.isFileList(value) || utils.endsWith(key, '[]')) && (arr = utils.toArray(value))\n        )) {\n        // eslint-disable-next-line no-param-reassign\n        key = removeBrackets(key);\n\n        arr.forEach(function each(el, index) {\n          !(utils.isUndefined(el) || el === null) && formData.append(\n            // eslint-disable-next-line no-nested-ternary\n            indexes === true ? renderKey([key], index, dots) : (indexes === null ? key : key + '[]'),\n            convertValue(el)\n          );\n        });\n        return false;\n      }\n    }\n\n    if (isVisitable(value)) {\n      return true;\n    }\n\n    formData.append(renderKey(path, key, dots), convertValue(value));\n\n    return false;\n  }\n\n  const stack = [];\n\n  const exposedHelpers = Object.assign(predicates, {\n    defaultVisitor,\n    convertValue,\n    isVisitable\n  });\n\n  function build(value, path) {\n    if (utils.isUndefined(value)) return;\n\n    if (stack.indexOf(value) !== -1) {\n      throw Error('Circular reference detected in ' + path.join('.'));\n    }\n\n    stack.push(value);\n\n    utils.forEach(value, function each(el, key) {\n      const result = !(utils.isUndefined(el) || el === null) && visitor.call(\n        formData, el, utils.isString(key) ? key.trim() : key, path, exposedHelpers\n      );\n\n      if (result === true) {\n        build(el, path ? path.concat(key) : [key]);\n      }\n    });\n\n    stack.pop();\n  }\n\n  if (!utils.isObject(obj)) {\n    throw new TypeError('data must be an object');\n  }\n\n  build(obj);\n\n  return formData;\n}\n\nexport default toFormData;\n","'use strict';\n\nimport toFormData from './toFormData.js';\n\n/**\n * It encodes a string by replacing all characters that are not in the unreserved set with\n * their percent-encoded equivalents\n *\n * @param {string} str - The string to encode.\n *\n * @returns {string} The encoded string.\n */\nfunction encode(str) {\n  const charMap = {\n    '!': '%21',\n    \"'\": '%27',\n    '(': '%28',\n    ')': '%29',\n    '~': '%7E',\n    '%20': '+',\n    '%00': '\\x00'\n  };\n  return encodeURIComponent(str).replace(/[!'()~]|%20|%00/g, function replacer(match) {\n    return charMap[match];\n  });\n}\n\n/**\n * It takes a params object and converts it to a FormData object\n *\n * @param {Object<string, any>} params - The parameters to be converted to a FormData object.\n * @param {Object<string, any>} options - The options object passed to the Axios constructor.\n *\n * @returns {void}\n */\nfunction AxiosURLSearchParams(params, options) {\n  this._pairs = [];\n\n  params && toFormData(params, this, options);\n}\n\nconst prototype = AxiosURLSearchParams.prototype;\n\nprototype.append = function append(name, value) {\n  this._pairs.push([name, value]);\n};\n\nprototype.toString = function toString(encoder) {\n  const _encode = encoder ? function(value) {\n    return encoder.call(this, value, encode);\n  } : encode;\n\n  return this._pairs.map(function each(pair) {\n    return _encode(pair[0]) + '=' + _encode(pair[1]);\n  }, '').join('&');\n};\n\nexport default AxiosURLSearchParams;\n","'use strict';\n\nimport utils from '../utils.js';\nimport AxiosURLSearchParams from '../helpers/AxiosURLSearchParams.js';\n\n/**\n * It replaces all instances of the characters `:`, `$`, `,`, `+`, `[`, and `]` with their\n * URI encoded counterparts\n *\n * @param {string} val The value to be encoded.\n *\n * @returns {string} The encoded value.\n */\nfunction encode(val) {\n  return encodeURIComponent(val).\n    replace(/%3A/gi, ':').\n    replace(/%24/g, '$').\n    replace(/%2C/gi, ',').\n    replace(/%20/g, '+').\n    replace(/%5B/gi, '[').\n    replace(/%5D/gi, ']');\n}\n\n/**\n * Build a URL by appending params to the end\n *\n * @param {string} url The base of the url (e.g., http://www.google.com)\n * @param {object} [params] The params to be appended\n * @param {?(object|Function)} options\n *\n * @returns {string} The formatted url\n */\nexport default function buildURL(url, params, options) {\n  /*eslint no-param-reassign:0*/\n  if (!params) {\n    return url;\n  }\n  \n  const _encode = options && options.encode || encode;\n\n  if (utils.isFunction(options)) {\n    options = {\n      serialize: options\n    };\n  } \n\n  const serializeFn = options && options.serialize;\n\n  let serializedParams;\n\n  if (serializeFn) {\n    serializedParams = serializeFn(params, options);\n  } else {\n    serializedParams = utils.isURLSearchParams(params) ?\n      params.toString() :\n      new AxiosURLSearchParams(params, options).toString(_encode);\n  }\n\n  if (serializedParams) {\n    const hashmarkIndex = url.indexOf(\"#\");\n\n    if (hashmarkIndex !== -1) {\n      url = url.slice(0, hashmarkIndex);\n    }\n    url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;\n  }\n\n  return url;\n}\n","'use strict';\n\nimport utils from './../utils.js';\n\nclass InterceptorManager {\n  constructor() {\n    this.handlers = [];\n  }\n\n  /**\n   * Add a new interceptor to the stack\n   *\n   * @param {Function} fulfilled The function to handle `then` for a `Promise`\n   * @param {Function} rejected The function to handle `reject` for a `Promise`\n   *\n   * @return {Number} An ID used to remove interceptor later\n   */\n  use(fulfilled, rejected, options) {\n    this.handlers.push({\n      fulfilled,\n      rejected,\n      synchronous: options ? options.synchronous : false,\n      runWhen: options ? options.runWhen : null\n    });\n    return this.handlers.length - 1;\n  }\n\n  /**\n   * Remove an interceptor from the stack\n   *\n   * @param {Number} id The ID that was returned by `use`\n   *\n   * @returns {Boolean} `true` if the interceptor was removed, `false` otherwise\n   */\n  eject(id) {\n    if (this.handlers[id]) {\n      this.handlers[id] = null;\n    }\n  }\n\n  /**\n   * Clear all interceptors from the stack\n   *\n   * @returns {void}\n   */\n  clear() {\n    if (this.handlers) {\n      this.handlers = [];\n    }\n  }\n\n  /**\n   * Iterate over all the registered interceptors\n   *\n   * This method is particularly useful for skipping over any\n   * interceptors that may have become `null` calling `eject`.\n   *\n   * @param {Function} fn The function to call for each interceptor\n   *\n   * @returns {void}\n   */\n  forEach(fn) {\n    utils.forEach(this.handlers, function forEachHandler(h) {\n      if (h !== null) {\n        fn(h);\n      }\n    });\n  }\n}\n\nexport default InterceptorManager;\n","'use strict';\n\nexport default {\n  silentJSONParsing: true,\n  forcedJSONParsing: true,\n  clarifyTimeoutError: false\n};\n","'use strict';\n\nimport AxiosURLSearchParams from '../../../helpers/AxiosURLSearchParams.js';\nexport default typeof URLSearchParams !== 'undefined' ? URLSearchParams : AxiosURLSearchParams;\n","'use strict';\n\nexport default typeof FormData !== 'undefined' ? FormData : null;\n","'use strict'\n\nexport default typeof Blob !== 'undefined' ? Blob : null\n","import URLSearchParams from './classes/URLSearchParams.js'\nimport FormData from './classes/FormData.js'\nimport Blob from './classes/Blob.js'\n\nexport default {\n  isBrowser: true,\n  classes: {\n    URLSearchParams,\n    FormData,\n    Blob\n  },\n  protocols: ['http', 'https', 'file', 'blob', 'url', 'data']\n};\n","const hasBrowserEnv = typeof window !== 'undefined' && typeof document !== 'undefined';\n\nconst _navigator = typeof navigator === 'object' && navigator || undefined;\n\n/**\n * Determine if we're running in a standard browser environment\n *\n * This allows axios to run in a web worker, and react-native.\n * Both environments support XMLHttpRequest, but not fully standard globals.\n *\n * web workers:\n *  typeof window -> undefined\n *  typeof document -> undefined\n *\n * react-native:\n *  navigator.product -> 'ReactNative'\n * nativescript\n *  navigator.product -> 'NativeScript' or 'NS'\n *\n * @returns {boolean}\n */\nconst hasStandardBrowserEnv = hasBrowserEnv &&\n  (!_navigator || ['ReactNative', 'NativeScript', 'NS'].indexOf(_navigator.product) < 0);\n\n/**\n * Determine if we're running in a standard browser webWorker environment\n *\n * Although the `isStandardBrowserEnv` method indicates that\n * `allows axios to run in a web worker`, the WebWorker will still be\n * filtered out due to its judgment standard\n * `typeof window !== 'undefined' && typeof document !== 'undefined'`.\n * This leads to a problem when axios post `FormData` in webWorker\n */\nconst hasStandardBrowserWebWorkerEnv = (() => {\n  return (\n    typeof WorkerGlobalScope !== 'undefined' &&\n    // eslint-disable-next-line no-undef\n    self instanceof WorkerGlobalScope &&\n    typeof self.importScripts === 'function'\n  );\n})();\n\nconst origin = hasBrowserEnv && window.location.href || 'http://localhost';\n\nexport {\n  hasBrowserEnv,\n  hasStandardBrowserWebWorkerEnv,\n  hasStandardBrowserEnv,\n  _navigator as navigator,\n  origin\n}\n","import platform from './node/index.js';\nimport * as utils from './common/utils.js';\n\nexport default {\n  ...utils,\n  ...platform\n}\n","'use strict';\n\nimport utils from '../utils.js';\nimport toFormData from './toFormData.js';\nimport platform from '../platform/index.js';\n\nexport default function toURLEncodedForm(data, options) {\n  return toFormData(data, new platform.classes.URLSearchParams(), Object.assign({\n    visitor: function(value, key, path, helpers) {\n      if (platform.isNode && utils.isBuffer(value)) {\n        this.append(key, value.toString('base64'));\n        return false;\n      }\n\n      return helpers.defaultVisitor.apply(this, arguments);\n    }\n  }, options));\n}\n","'use strict';\n\nimport utils from '../utils.js';\n\n/**\n * It takes a string like `foo[x][y][z]` and returns an array like `['foo', 'x', 'y', 'z']\n *\n * @param {string} name - The name of the property to get.\n *\n * @returns An array of strings.\n */\nfunction parsePropPath(name) {\n  // foo[x][y][z]\n  // foo.x.y.z\n  // foo-x-y-z\n  // foo x y z\n  return utils.matchAll(/\\w+|\\[(\\w*)]/g, name).map(match => {\n    return match[0] === '[]' ? '' : match[1] || match[0];\n  });\n}\n\n/**\n * Convert an array to an object.\n *\n * @param {Array<any>} arr - The array to convert to an object.\n *\n * @returns An object with the same keys and values as the array.\n */\nfunction arrayToObject(arr) {\n  const obj = {};\n  const keys = Object.keys(arr);\n  let i;\n  const len = keys.length;\n  let key;\n  for (i = 0; i < len; i++) {\n    key = keys[i];\n    obj[key] = arr[key];\n  }\n  return obj;\n}\n\n/**\n * It takes a FormData object and returns a JavaScript object\n *\n * @param {string} formData The FormData object to convert to JSON.\n *\n * @returns {Object<string, any> | null} The converted object.\n */\nfunction formDataToJSON(formData) {\n  function buildPath(path, value, target, index) {\n    let name = path[index++];\n\n    if (name === '__proto__') return true;\n\n    const isNumericKey = Number.isFinite(+name);\n    const isLast = index >= path.length;\n    name = !name && utils.isArray(target) ? target.length : name;\n\n    if (isLast) {\n      if (utils.hasOwnProp(target, name)) {\n        target[name] = [target[name], value];\n      } else {\n        target[name] = value;\n      }\n\n      return !isNumericKey;\n    }\n\n    if (!target[name] || !utils.isObject(target[name])) {\n      target[name] = [];\n    }\n\n    const result = buildPath(path, value, target[name], index);\n\n    if (result && utils.isArray(target[name])) {\n      target[name] = arrayToObject(target[name]);\n    }\n\n    return !isNumericKey;\n  }\n\n  if (utils.isFormData(formData) && utils.isFunction(formData.entries)) {\n    const obj = {};\n\n    utils.forEachEntry(formData, (name, value) => {\n      buildPath(parsePropPath(name), value, obj, 0);\n    });\n\n    return obj;\n  }\n\n  return null;\n}\n\nexport default formDataToJSON;\n","'use strict';\n\nimport utils from '../utils.js';\nimport AxiosError from '../core/AxiosError.js';\nimport transitionalDefaults from './transitional.js';\nimport toFormData from '../helpers/toFormData.js';\nimport toURLEncodedForm from '../helpers/toURLEncodedForm.js';\nimport platform from '../platform/index.js';\nimport formDataToJSON from '../helpers/formDataToJSON.js';\n\n/**\n * It takes a string, tries to parse it, and if it fails, it returns the stringified version\n * of the input\n *\n * @param {any} rawValue - The value to be stringified.\n * @param {Function} parser - A function that parses a string into a JavaScript object.\n * @param {Function} encoder - A function that takes a value and returns a string.\n *\n * @returns {string} A stringified version of the rawValue.\n */\nfunction stringifySafely(rawValue, parser, encoder) {\n  if (utils.isString(rawValue)) {\n    try {\n      (parser || JSON.parse)(rawValue);\n      return utils.trim(rawValue);\n    } catch (e) {\n      if (e.name !== 'SyntaxError') {\n        throw e;\n      }\n    }\n  }\n\n  return (encoder || JSON.stringify)(rawValue);\n}\n\nconst defaults = {\n\n  transitional: transitionalDefaults,\n\n  adapter: ['xhr', 'http', 'fetch'],\n\n  transformRequest: [function transformRequest(data, headers) {\n    const contentType = headers.getContentType() || '';\n    const hasJSONContentType = contentType.indexOf('application/json') > -1;\n    const isObjectPayload = utils.isObject(data);\n\n    if (isObjectPayload && utils.isHTMLForm(data)) {\n      data = new FormData(data);\n    }\n\n    const isFormData = utils.isFormData(data);\n\n    if (isFormData) {\n      return hasJSONContentType ? JSON.stringify(formDataToJSON(data)) : data;\n    }\n\n    if (utils.isArrayBuffer(data) ||\n      utils.isBuffer(data) ||\n      utils.isStream(data) ||\n      utils.isFile(data) ||\n      utils.isBlob(data) ||\n      utils.isReadableStream(data)\n    ) {\n      return data;\n    }\n    if (utils.isArrayBufferView(data)) {\n      return data.buffer;\n    }\n    if (utils.isURLSearchParams(data)) {\n      headers.setContentType('application/x-www-form-urlencoded;charset=utf-8', false);\n      return data.toString();\n    }\n\n    let isFileList;\n\n    if (isObjectPayload) {\n      if (contentType.indexOf('application/x-www-form-urlencoded') > -1) {\n        return toURLEncodedForm(data, this.formSerializer).toString();\n      }\n\n      if ((isFileList = utils.isFileList(data)) || contentType.indexOf('multipart/form-data') > -1) {\n        const _FormData = this.env && this.env.FormData;\n\n        return toFormData(\n          isFileList ? {'files[]': data} : data,\n          _FormData && new _FormData(),\n          this.formSerializer\n        );\n      }\n    }\n\n    if (isObjectPayload || hasJSONContentType ) {\n      headers.setContentType('application/json', false);\n      return stringifySafely(data);\n    }\n\n    return data;\n  }],\n\n  transformResponse: [function transformResponse(data) {\n    const transitional = this.transitional || defaults.transitional;\n    const forcedJSONParsing = transitional && transitional.forcedJSONParsing;\n    const JSONRequested = this.responseType === 'json';\n\n    if (utils.isResponse(data) || utils.isReadableStream(data)) {\n      return data;\n    }\n\n    if (data && utils.isString(data) && ((forcedJSONParsing && !this.responseType) || JSONRequested)) {\n      const silentJSONParsing = transitional && transitional.silentJSONParsing;\n      const strictJSONParsing = !silentJSONParsing && JSONRequested;\n\n      try {\n        return JSON.parse(data);\n      } catch (e) {\n        if (strictJSONParsing) {\n          if (e.name === 'SyntaxError') {\n            throw AxiosError.from(e, AxiosError.ERR_BAD_RESPONSE, this, null, this.response);\n          }\n          throw e;\n        }\n      }\n    }\n\n    return data;\n  }],\n\n  /**\n   * A timeout in milliseconds to abort a request. If set to 0 (default) a\n   * timeout is not created.\n   */\n  timeout: 0,\n\n  xsrfCookieName: 'XSRF-TOKEN',\n  xsrfHeaderName: 'X-XSRF-TOKEN',\n\n  maxContentLength: -1,\n  maxBodyLength: -1,\n\n  env: {\n    FormData: platform.classes.FormData,\n    Blob: platform.classes.Blob\n  },\n\n  validateStatus: function validateStatus(status) {\n    return status >= 200 && status < 300;\n  },\n\n  headers: {\n    common: {\n      'Accept': 'application/json, text/plain, */*',\n      'Content-Type': undefined\n    }\n  }\n};\n\nutils.forEach(['delete', 'get', 'head', 'post', 'put', 'patch'], (method) => {\n  defaults.headers[method] = {};\n});\n\nexport default defaults;\n","'use strict';\n\nimport utils from './../utils.js';\n\n// RawAxiosHeaders whose duplicates are ignored by node\n// c.f. https://nodejs.org/api/http.html#http_message_headers\nconst ignoreDuplicateOf = utils.toObjectSet([\n  'age', 'authorization', 'content-length', 'content-type', 'etag',\n  'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since',\n  'last-modified', 'location', 'max-forwards', 'proxy-authorization',\n  'referer', 'retry-after', 'user-agent'\n]);\n\n/**\n * Parse headers into an object\n *\n * ```\n * Date: Wed, 27 Aug 2014 08:58:49 GMT\n * Content-Type: application/json\n * Connection: keep-alive\n * Transfer-Encoding: chunked\n * ```\n *\n * @param {String} rawHeaders Headers needing to be parsed\n *\n * @returns {Object} Headers parsed into an object\n */\nexport default rawHeaders => {\n  const parsed = {};\n  let key;\n  let val;\n  let i;\n\n  rawHeaders && rawHeaders.split('\\n').forEach(function parser(line) {\n    i = line.indexOf(':');\n    key = line.substring(0, i).trim().toLowerCase();\n    val = line.substring(i + 1).trim();\n\n    if (!key || (parsed[key] && ignoreDuplicateOf[key])) {\n      return;\n    }\n\n    if (key === 'set-cookie') {\n      if (parsed[key]) {\n        parsed[key].push(val);\n      } else {\n        parsed[key] = [val];\n      }\n    } else {\n      parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;\n    }\n  });\n\n  return parsed;\n};\n","'use strict';\n\nimport utils from '../utils.js';\nimport parseHeaders from '../helpers/parseHeaders.js';\n\nconst $internals = Symbol('internals');\n\nfunction normalizeHeader(header) {\n  return header && String(header).trim().toLowerCase();\n}\n\nfunction normalizeValue(value) {\n  if (value === false || value == null) {\n    return value;\n  }\n\n  return utils.isArray(value) ? value.map(normalizeValue) : String(value);\n}\n\nfunction parseTokens(str) {\n  const tokens = Object.create(null);\n  const tokensRE = /([^\\s,;=]+)\\s*(?:=\\s*([^,;]+))?/g;\n  let match;\n\n  while ((match = tokensRE.exec(str))) {\n    tokens[match[1]] = match[2];\n  }\n\n  return tokens;\n}\n\nconst isValidHeaderName = (str) => /^[-_a-zA-Z0-9^`|~,!#$%&'*+.]+$/.test(str.trim());\n\nfunction matchHeaderValue(context, value, header, filter, isHeaderNameFilter) {\n  if (utils.isFunction(filter)) {\n    return filter.call(this, value, header);\n  }\n\n  if (isHeaderNameFilter) {\n    value = header;\n  }\n\n  if (!utils.isString(value)) return;\n\n  if (utils.isString(filter)) {\n    return value.indexOf(filter) !== -1;\n  }\n\n  if (utils.isRegExp(filter)) {\n    return filter.test(value);\n  }\n}\n\nfunction formatHeader(header) {\n  return header.trim()\n    .toLowerCase().replace(/([a-z\\d])(\\w*)/g, (w, char, str) => {\n      return char.toUpperCase() + str;\n    });\n}\n\nfunction buildAccessors(obj, header) {\n  const accessorName = utils.toCamelCase(' ' + header);\n\n  ['get', 'set', 'has'].forEach(methodName => {\n    Object.defineProperty(obj, methodName + accessorName, {\n      value: function(arg1, arg2, arg3) {\n        return this[methodName].call(this, header, arg1, arg2, arg3);\n      },\n      configurable: true\n    });\n  });\n}\n\nclass AxiosHeaders {\n  constructor(headers) {\n    headers && this.set(headers);\n  }\n\n  set(header, valueOrRewrite, rewrite) {\n    const self = this;\n\n    function setHeader(_value, _header, _rewrite) {\n      const lHeader = normalizeHeader(_header);\n\n      if (!lHeader) {\n        throw new Error('header name must be a non-empty string');\n      }\n\n      const key = utils.findKey(self, lHeader);\n\n      if(!key || self[key] === undefined || _rewrite === true || (_rewrite === undefined && self[key] !== false)) {\n        self[key || _header] = normalizeValue(_value);\n      }\n    }\n\n    const setHeaders = (headers, _rewrite) =>\n      utils.forEach(headers, (_value, _header) => setHeader(_value, _header, _rewrite));\n\n    if (utils.isPlainObject(header) || header instanceof this.constructor) {\n      setHeaders(header, valueOrRewrite)\n    } else if(utils.isString(header) && (header = header.trim()) && !isValidHeaderName(header)) {\n      setHeaders(parseHeaders(header), valueOrRewrite);\n    } else if (utils.isHeaders(header)) {\n      for (const [key, value] of header.entries()) {\n        setHeader(value, key, rewrite);\n      }\n    } else {\n      header != null && setHeader(valueOrRewrite, header, rewrite);\n    }\n\n    return this;\n  }\n\n  get(header, parser) {\n    header = normalizeHeader(header);\n\n    if (header) {\n      const key = utils.findKey(this, header);\n\n      if (key) {\n        const value = this[key];\n\n        if (!parser) {\n          return value;\n        }\n\n        if (parser === true) {\n          return parseTokens(value);\n        }\n\n        if (utils.isFunction(parser)) {\n          return parser.call(this, value, key);\n        }\n\n        if (utils.isRegExp(parser)) {\n          return parser.exec(value);\n        }\n\n        throw new TypeError('parser must be boolean|regexp|function');\n      }\n    }\n  }\n\n  has(header, matcher) {\n    header = normalizeHeader(header);\n\n    if (header) {\n      const key = utils.findKey(this, header);\n\n      return !!(key && this[key] !== undefined && (!matcher || matchHeaderValue(this, this[key], key, matcher)));\n    }\n\n    return false;\n  }\n\n  delete(header, matcher) {\n    const self = this;\n    let deleted = false;\n\n    function deleteHeader(_header) {\n      _header = normalizeHeader(_header);\n\n      if (_header) {\n        const key = utils.findKey(self, _header);\n\n        if (key && (!matcher || matchHeaderValue(self, self[key], key, matcher))) {\n          delete self[key];\n\n          deleted = true;\n        }\n      }\n    }\n\n    if (utils.isArray(header)) {\n      header.forEach(deleteHeader);\n    } else {\n      deleteHeader(header);\n    }\n\n    return deleted;\n  }\n\n  clear(matcher) {\n    const keys = Object.keys(this);\n    let i = keys.length;\n    let deleted = false;\n\n    while (i--) {\n      const key = keys[i];\n      if(!matcher || matchHeaderValue(this, this[key], key, matcher, true)) {\n        delete this[key];\n        deleted = true;\n      }\n    }\n\n    return deleted;\n  }\n\n  normalize(format) {\n    const self = this;\n    const headers = {};\n\n    utils.forEach(this, (value, header) => {\n      const key = utils.findKey(headers, header);\n\n      if (key) {\n        self[key] = normalizeValue(value);\n        delete self[header];\n        return;\n      }\n\n      const normalized = format ? formatHeader(header) : String(header).trim();\n\n      if (normalized !== header) {\n        delete self[header];\n      }\n\n      self[normalized] = normalizeValue(value);\n\n      headers[normalized] = true;\n    });\n\n    return this;\n  }\n\n  concat(...targets) {\n    return this.constructor.concat(this, ...targets);\n  }\n\n  toJSON(asStrings) {\n    const obj = Object.create(null);\n\n    utils.forEach(this, (value, header) => {\n      value != null && value !== false && (obj[header] = asStrings && utils.isArray(value) ? value.join(', ') : value);\n    });\n\n    return obj;\n  }\n\n  [Symbol.iterator]() {\n    return Object.entries(this.toJSON())[Symbol.iterator]();\n  }\n\n  toString() {\n    return Object.entries(this.toJSON()).map(([header, value]) => header + ': ' + value).join('\\n');\n  }\n\n  get [Symbol.toStringTag]() {\n    return 'AxiosHeaders';\n  }\n\n  static from(thing) {\n    return thing instanceof this ? thing : new this(thing);\n  }\n\n  static concat(first, ...targets) {\n    const computed = new this(first);\n\n    targets.forEach((target) => computed.set(target));\n\n    return computed;\n  }\n\n  static accessor(header) {\n    const internals = this[$internals] = (this[$internals] = {\n      accessors: {}\n    });\n\n    const accessors = internals.accessors;\n    const prototype = this.prototype;\n\n    function defineAccessor(_header) {\n      const lHeader = normalizeHeader(_header);\n\n      if (!accessors[lHeader]) {\n        buildAccessors(prototype, _header);\n        accessors[lHeader] = true;\n      }\n    }\n\n    utils.isArray(header) ? header.forEach(defineAccessor) : defineAccessor(header);\n\n    return this;\n  }\n}\n\nAxiosHeaders.accessor(['Content-Type', 'Content-Length', 'Accept', 'Accept-Encoding', 'User-Agent', 'Authorization']);\n\n// reserved names hotfix\nutils.reduceDescriptors(AxiosHeaders.prototype, ({value}, key) => {\n  let mapped = key[0].toUpperCase() + key.slice(1); // map `set` => `Set`\n  return {\n    get: () => value,\n    set(headerValue) {\n      this[mapped] = headerValue;\n    }\n  }\n});\n\nutils.freezeMethods(AxiosHeaders);\n\nexport default AxiosHeaders;\n","'use strict';\n\nimport utils from './../utils.js';\nimport defaults from '../defaults/index.js';\nimport AxiosHeaders from '../core/AxiosHeaders.js';\n\n/**\n * Transform the data for a request or a response\n *\n * @param {Array|Function} fns A single function or Array of functions\n * @param {?Object} response The response object\n *\n * @returns {*} The resulting transformed data\n */\nexport default function transformData(fns, response) {\n  const config = this || defaults;\n  const context = response || config;\n  const headers = AxiosHeaders.from(context.headers);\n  let data = context.data;\n\n  utils.forEach(fns, function transform(fn) {\n    data = fn.call(config, data, headers.normalize(), response ? response.status : undefined);\n  });\n\n  headers.normalize();\n\n  return data;\n}\n","'use strict';\n\nexport default function isCancel(value) {\n  return !!(value && value.__CANCEL__);\n}\n","'use strict';\n\nimport AxiosError from '../core/AxiosError.js';\nimport utils from '../utils.js';\n\n/**\n * A `CanceledError` is an object that is thrown when an operation is canceled.\n *\n * @param {string=} message The message.\n * @param {Object=} config The config.\n * @param {Object=} request The request.\n *\n * @returns {CanceledError} The created error.\n */\nfunction CanceledError(message, config, request) {\n  // eslint-disable-next-line no-eq-null,eqeqeq\n  AxiosError.call(this, message == null ? 'canceled' : message, AxiosError.ERR_CANCELED, config, request);\n  this.name = 'CanceledError';\n}\n\nutils.inherits(CanceledError, AxiosError, {\n  __CANCEL__: true\n});\n\nexport default CanceledError;\n","'use strict';\n\nimport AxiosError from './AxiosError.js';\n\n/**\n * Resolve or reject a Promise based on response status.\n *\n * @param {Function} resolve A function that resolves the promise.\n * @param {Function} reject A function that rejects the promise.\n * @param {object} response The response.\n *\n * @returns {object} The response.\n */\nexport default function settle(resolve, reject, response) {\n  const validateStatus = response.config.validateStatus;\n  if (!response.status || !validateStatus || validateStatus(response.status)) {\n    resolve(response);\n  } else {\n    reject(new AxiosError(\n      'Request failed with status code ' + response.status,\n      [AxiosError.ERR_BAD_REQUEST, AxiosError.ERR_BAD_RESPONSE][Math.floor(response.status / 100) - 4],\n      response.config,\n      response.request,\n      response\n    ));\n  }\n}\n","'use strict';\n\nexport default function parseProtocol(url) {\n  const match = /^([-+\\w]{1,25})(:?\\/\\/|:)/.exec(url);\n  return match && match[1] || '';\n}\n","'use strict';\n\n/**\n * Calculate data maxRate\n * @param {Number} [samplesCount= 10]\n * @param {Number} [min= 1000]\n * @returns {Function}\n */\nfunction speedometer(samplesCount, min) {\n  samplesCount = samplesCount || 10;\n  const bytes = new Array(samplesCount);\n  const timestamps = new Array(samplesCount);\n  let head = 0;\n  let tail = 0;\n  let firstSampleTS;\n\n  min = min !== undefined ? min : 1000;\n\n  return function push(chunkLength) {\n    const now = Date.now();\n\n    const startedAt = timestamps[tail];\n\n    if (!firstSampleTS) {\n      firstSampleTS = now;\n    }\n\n    bytes[head] = chunkLength;\n    timestamps[head] = now;\n\n    let i = tail;\n    let bytesCount = 0;\n\n    while (i !== head) {\n      bytesCount += bytes[i++];\n      i = i % samplesCount;\n    }\n\n    head = (head + 1) % samplesCount;\n\n    if (head === tail) {\n      tail = (tail + 1) % samplesCount;\n    }\n\n    if (now - firstSampleTS < min) {\n      return;\n    }\n\n    const passed = startedAt && now - startedAt;\n\n    return passed ? Math.round(bytesCount * 1000 / passed) : undefined;\n  };\n}\n\nexport default speedometer;\n","/**\n * Throttle decorator\n * @param {Function} fn\n * @param {Number} freq\n * @return {Function}\n */\nfunction throttle(fn, freq) {\n  let timestamp = 0;\n  let threshold = 1000 / freq;\n  let lastArgs;\n  let timer;\n\n  const invoke = (args, now = Date.now()) => {\n    timestamp = now;\n    lastArgs = null;\n    if (timer) {\n      clearTimeout(timer);\n      timer = null;\n    }\n    fn.apply(null, args);\n  }\n\n  const throttled = (...args) => {\n    const now = Date.now();\n    const passed = now - timestamp;\n    if ( passed >= threshold) {\n      invoke(args, now);\n    } else {\n      lastArgs = args;\n      if (!timer) {\n        timer = setTimeout(() => {\n          timer = null;\n          invoke(lastArgs)\n        }, threshold - passed);\n      }\n    }\n  }\n\n  const flush = () => lastArgs && invoke(lastArgs);\n\n  return [throttled, flush];\n}\n\nexport default throttle;\n","import speedometer from \"./speedometer.js\";\nimport throttle from \"./throttle.js\";\nimport utils from \"../utils.js\";\n\nexport const progressEventReducer = (listener, isDownloadStream, freq = 3) => {\n  let bytesNotified = 0;\n  const _speedometer = speedometer(50, 250);\n\n  return throttle(e => {\n    const loaded = e.loaded;\n    const total = e.lengthComputable ? e.total : undefined;\n    const progressBytes = loaded - bytesNotified;\n    const rate = _speedometer(progressBytes);\n    const inRange = loaded <= total;\n\n    bytesNotified = loaded;\n\n    const data = {\n      loaded,\n      total,\n      progress: total ? (loaded / total) : undefined,\n      bytes: progressBytes,\n      rate: rate ? rate : undefined,\n      estimated: rate && total && inRange ? (total - loaded) / rate : undefined,\n      event: e,\n      lengthComputable: total != null,\n      [isDownloadStream ? 'download' : 'upload']: true\n    };\n\n    listener(data);\n  }, freq);\n}\n\nexport const progressEventDecorator = (total, throttled) => {\n  const lengthComputable = total != null;\n\n  return [(loaded) => throttled[0]({\n    lengthComputable,\n    total,\n    loaded\n  }), throttled[1]];\n}\n\nexport const asyncDecorator = (fn) => (...args) => utils.asap(() => fn(...args));\n","import platform from '../platform/index.js';\n\nexport default platform.hasStandardBrowserEnv ? ((origin, isMSIE) => (url) => {\n  url = new URL(url, platform.origin);\n\n  return (\n    origin.protocol === url.protocol &&\n    origin.host === url.host &&\n    (isMSIE || origin.port === url.port)\n  );\n})(\n  new URL(platform.origin),\n  platform.navigator && /(msie|trident)/i.test(platform.navigator.userAgent)\n) : () => true;\n","import utils from './../utils.js';\nimport platform from '../platform/index.js';\n\nexport default platform.hasStandardBrowserEnv ?\n\n  // Standard browser envs support document.cookie\n  {\n    write(name, value, expires, path, domain, secure) {\n      const cookie = [name + '=' + encodeURIComponent(value)];\n\n      utils.isNumber(expires) && cookie.push('expires=' + new Date(expires).toGMTString());\n\n      utils.isString(path) && cookie.push('path=' + path);\n\n      utils.isString(domain) && cookie.push('domain=' + domain);\n\n      secure === true && cookie.push('secure');\n\n      document.cookie = cookie.join('; ');\n    },\n\n    read(name) {\n      const match = document.cookie.match(new RegExp('(^|;\\\\s*)(' + name + ')=([^;]*)'));\n      return (match ? decodeURIComponent(match[3]) : null);\n    },\n\n    remove(name) {\n      this.write(name, '', Date.now() - 86400000);\n    }\n  }\n\n  :\n\n  // Non-standard browser env (web workers, react-native) lack needed support.\n  {\n    write() {},\n    read() {\n      return null;\n    },\n    remove() {}\n  };\n\n","'use strict';\n\n/**\n * Determines whether the specified URL is absolute\n *\n * @param {string} url The URL to test\n *\n * @returns {boolean} True if the specified URL is absolute, otherwise false\n */\nexport default function isAbsoluteURL(url) {\n  // A URL is considered absolute if it begins with \"<scheme>://\" or \"//\" (protocol-relative URL).\n  // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed\n  // by any combination of letters, digits, plus, period, or hyphen.\n  return /^([a-z][a-z\\d+\\-.]*:)?\\/\\//i.test(url);\n}\n","'use strict';\n\n/**\n * Creates a new URL by combining the specified URLs\n *\n * @param {string} baseURL The base URL\n * @param {string} relativeURL The relative URL\n *\n * @returns {string} The combined URL\n */\nexport default function combineURLs(baseURL, relativeURL) {\n  return relativeURL\n    ? baseURL.replace(/\\/?\\/$/, '') + '/' + relativeURL.replace(/^\\/+/, '')\n    : baseURL;\n}\n","'use strict';\n\nimport isAbsoluteURL from '../helpers/isAbsoluteURL.js';\nimport combineURLs from '../helpers/combineURLs.js';\n\n/**\n * Creates a new URL by combining the baseURL with the requestedURL,\n * only when the requestedURL is not already an absolute URL.\n * If the requestURL is absolute, this function returns the requestedURL untouched.\n *\n * @param {string} baseURL The base URL\n * @param {string} requestedURL Absolute or relative URL to combine\n *\n * @returns {string} The combined full path\n */\nexport default function buildFullPath(baseURL, requestedURL) {\n  if (baseURL && !isAbsoluteURL(requestedURL)) {\n    return combineURLs(baseURL, requestedURL);\n  }\n  return requestedURL;\n}\n","'use strict';\n\nimport utils from '../utils.js';\nimport AxiosHeaders from \"./AxiosHeaders.js\";\n\nconst headersToObject = (thing) => thing instanceof AxiosHeaders ? { ...thing } : thing;\n\n/**\n * Config-specific merge-function which creates a new config-object\n * by merging two configuration objects together.\n *\n * @param {Object} config1\n * @param {Object} config2\n *\n * @returns {Object} New object resulting from merging config2 to config1\n */\nexport default function mergeConfig(config1, config2) {\n  // eslint-disable-next-line no-param-reassign\n  config2 = config2 || {};\n  const config = {};\n\n  function getMergedValue(target, source, prop, caseless) {\n    if (utils.isPlainObject(target) && utils.isPlainObject(source)) {\n      return utils.merge.call({caseless}, target, source);\n    } else if (utils.isPlainObject(source)) {\n      return utils.merge({}, source);\n    } else if (utils.isArray(source)) {\n      return source.slice();\n    }\n    return source;\n  }\n\n  // eslint-disable-next-line consistent-return\n  function mergeDeepProperties(a, b, prop , caseless) {\n    if (!utils.isUndefined(b)) {\n      return getMergedValue(a, b, prop , caseless);\n    } else if (!utils.isUndefined(a)) {\n      return getMergedValue(undefined, a, prop , caseless);\n    }\n  }\n\n  // eslint-disable-next-line consistent-return\n  function valueFromConfig2(a, b) {\n    if (!utils.isUndefined(b)) {\n      return getMergedValue(undefined, b);\n    }\n  }\n\n  // eslint-disable-next-line consistent-return\n  function defaultToConfig2(a, b) {\n    if (!utils.isUndefined(b)) {\n      return getMergedValue(undefined, b);\n    } else if (!utils.isUndefined(a)) {\n      return getMergedValue(undefined, a);\n    }\n  }\n\n  // eslint-disable-next-line consistent-return\n  function mergeDirectKeys(a, b, prop) {\n    if (prop in config2) {\n      return getMergedValue(a, b);\n    } else if (prop in config1) {\n      return getMergedValue(undefined, a);\n    }\n  }\n\n  const mergeMap = {\n    url: valueFromConfig2,\n    method: valueFromConfig2,\n    data: valueFromConfig2,\n    baseURL: defaultToConfig2,\n    transformRequest: defaultToConfig2,\n    transformResponse: defaultToConfig2,\n    paramsSerializer: defaultToConfig2,\n    timeout: defaultToConfig2,\n    timeoutMessage: defaultToConfig2,\n    withCredentials: defaultToConfig2,\n    withXSRFToken: defaultToConfig2,\n    adapter: defaultToConfig2,\n    responseType: defaultToConfig2,\n    xsrfCookieName: defaultToConfig2,\n    xsrfHeaderName: defaultToConfig2,\n    onUploadProgress: defaultToConfig2,\n    onDownloadProgress: defaultToConfig2,\n    decompress: defaultToConfig2,\n    maxContentLength: defaultToConfig2,\n    maxBodyLength: defaultToConfig2,\n    beforeRedirect: defaultToConfig2,\n    transport: defaultToConfig2,\n    httpAgent: defaultToConfig2,\n    httpsAgent: defaultToConfig2,\n    cancelToken: defaultToConfig2,\n    socketPath: defaultToConfig2,\n    responseEncoding: defaultToConfig2,\n    validateStatus: mergeDirectKeys,\n    headers: (a, b , prop) => mergeDeepProperties(headersToObject(a), headersToObject(b),prop, true)\n  };\n\n  utils.forEach(Object.keys(Object.assign({}, config1, config2)), function computeConfigValue(prop) {\n    const merge = mergeMap[prop] || mergeDeepProperties;\n    const configValue = merge(config1[prop], config2[prop], prop);\n    (utils.isUndefined(configValue) && merge !== mergeDirectKeys) || (config[prop] = configValue);\n  });\n\n  return config;\n}\n","import platform from \"../platform/index.js\";\nimport utils from \"../utils.js\";\nimport isURLSameOrigin from \"./isURLSameOrigin.js\";\nimport cookies from \"./cookies.js\";\nimport buildFullPath from \"../core/buildFullPath.js\";\nimport mergeConfig from \"../core/mergeConfig.js\";\nimport AxiosHeaders from \"../core/AxiosHeaders.js\";\nimport buildURL from \"./buildURL.js\";\n\nexport default (config) => {\n  const newConfig = mergeConfig({}, config);\n\n  let {data, withXSRFToken, xsrfHeaderName, xsrfCookieName, headers, auth} = newConfig;\n\n  newConfig.headers = headers = AxiosHeaders.from(headers);\n\n  newConfig.url = buildURL(buildFullPath(newConfig.baseURL, newConfig.url), config.params, config.paramsSerializer);\n\n  // HTTP basic authentication\n  if (auth) {\n    headers.set('Authorization', 'Basic ' +\n      btoa((auth.username || '') + ':' + (auth.password ? unescape(encodeURIComponent(auth.password)) : ''))\n    );\n  }\n\n  let contentType;\n\n  if (utils.isFormData(data)) {\n    if (platform.hasStandardBrowserEnv || platform.hasStandardBrowserWebWorkerEnv) {\n      headers.setContentType(undefined); // Let the browser set it\n    } else if ((contentType = headers.getContentType()) !== false) {\n      // fix semicolon duplication issue for ReactNative FormData implementation\n      const [type, ...tokens] = contentType ? contentType.split(';').map(token => token.trim()).filter(Boolean) : [];\n      headers.setContentType([type || 'multipart/form-data', ...tokens].join('; '));\n    }\n  }\n\n  // Add xsrf header\n  // This is only done if running in a standard browser environment.\n  // Specifically not if we're in a web worker, or react-native.\n\n  if (platform.hasStandardBrowserEnv) {\n    withXSRFToken && utils.isFunction(withXSRFToken) && (withXSRFToken = withXSRFToken(newConfig));\n\n    if (withXSRFToken || (withXSRFToken !== false && isURLSameOrigin(newConfig.url))) {\n      // Add xsrf header\n      const xsrfValue = xsrfHeaderName && xsrfCookieName && cookies.read(xsrfCookieName);\n\n      if (xsrfValue) {\n        headers.set(xsrfHeaderName, xsrfValue);\n      }\n    }\n  }\n\n  return newConfig;\n}\n\n","import utils from './../utils.js';\nimport settle from './../core/settle.js';\nimport transitionalDefaults from '../defaults/transitional.js';\nimport AxiosError from '../core/AxiosError.js';\nimport CanceledError from '../cancel/CanceledError.js';\nimport parseProtocol from '../helpers/parseProtocol.js';\nimport platform from '../platform/index.js';\nimport AxiosHeaders from '../core/AxiosHeaders.js';\nimport {progressEventReducer} from '../helpers/progressEventReducer.js';\nimport resolveConfig from \"../helpers/resolveConfig.js\";\n\nconst isXHRAdapterSupported = typeof XMLHttpRequest !== 'undefined';\n\nexport default isXHRAdapterSupported && function (config) {\n  return new Promise(function dispatchXhrRequest(resolve, reject) {\n    const _config = resolveConfig(config);\n    let requestData = _config.data;\n    const requestHeaders = AxiosHeaders.from(_config.headers).normalize();\n    let {responseType, onUploadProgress, onDownloadProgress} = _config;\n    let onCanceled;\n    let uploadThrottled, downloadThrottled;\n    let flushUpload, flushDownload;\n\n    function done() {\n      flushUpload && flushUpload(); // flush events\n      flushDownload && flushDownload(); // flush events\n\n      _config.cancelToken && _config.cancelToken.unsubscribe(onCanceled);\n\n      _config.signal && _config.signal.removeEventListener('abort', onCanceled);\n    }\n\n    let request = new XMLHttpRequest();\n\n    request.open(_config.method.toUpperCase(), _config.url, true);\n\n    // Set the request timeout in MS\n    request.timeout = _config.timeout;\n\n    function onloadend() {\n      if (!request) {\n        return;\n      }\n      // Prepare the response\n      const responseHeaders = AxiosHeaders.from(\n        'getAllResponseHeaders' in request && request.getAllResponseHeaders()\n      );\n      const responseData = !responseType || responseType === 'text' || responseType === 'json' ?\n        request.responseText : request.response;\n      const response = {\n        data: responseData,\n        status: request.status,\n        statusText: request.statusText,\n        headers: responseHeaders,\n        config,\n        request\n      };\n\n      settle(function _resolve(value) {\n        resolve(value);\n        done();\n      }, function _reject(err) {\n        reject(err);\n        done();\n      }, response);\n\n      // Clean up request\n      request = null;\n    }\n\n    if ('onloadend' in request) {\n      // Use onloadend if available\n      request.onloadend = onloadend;\n    } else {\n      // Listen for ready state to emulate onloadend\n      request.onreadystatechange = function handleLoad() {\n        if (!request || request.readyState !== 4) {\n          return;\n        }\n\n        // The request errored out and we didn't get a response, this will be\n        // handled by onerror instead\n        // With one exception: request that using file: protocol, most browsers\n        // will return status as 0 even though it's a successful request\n        if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {\n          return;\n        }\n        // readystate handler is calling before onerror or ontimeout handlers,\n        // so we should call onloadend on the next 'tick'\n        setTimeout(onloadend);\n      };\n    }\n\n    // Handle browser request cancellation (as opposed to a manual cancellation)\n    request.onabort = function handleAbort() {\n      if (!request) {\n        return;\n      }\n\n      reject(new AxiosError('Request aborted', AxiosError.ECONNABORTED, config, request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Handle low level network errors\n    request.onerror = function handleError() {\n      // Real errors are hidden from us by the browser\n      // onerror should only fire if it's a network error\n      reject(new AxiosError('Network Error', AxiosError.ERR_NETWORK, config, request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Handle timeout\n    request.ontimeout = function handleTimeout() {\n      let timeoutErrorMessage = _config.timeout ? 'timeout of ' + _config.timeout + 'ms exceeded' : 'timeout exceeded';\n      const transitional = _config.transitional || transitionalDefaults;\n      if (_config.timeoutErrorMessage) {\n        timeoutErrorMessage = _config.timeoutErrorMessage;\n      }\n      reject(new AxiosError(\n        timeoutErrorMessage,\n        transitional.clarifyTimeoutError ? AxiosError.ETIMEDOUT : AxiosError.ECONNABORTED,\n        config,\n        request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Remove Content-Type if data is undefined\n    requestData === undefined && requestHeaders.setContentType(null);\n\n    // Add headers to the request\n    if ('setRequestHeader' in request) {\n      utils.forEach(requestHeaders.toJSON(), function setRequestHeader(val, key) {\n        request.setRequestHeader(key, val);\n      });\n    }\n\n    // Add withCredentials to request if needed\n    if (!utils.isUndefined(_config.withCredentials)) {\n      request.withCredentials = !!_config.withCredentials;\n    }\n\n    // Add responseType to request if needed\n    if (responseType && responseType !== 'json') {\n      request.responseType = _config.responseType;\n    }\n\n    // Handle progress if needed\n    if (onDownloadProgress) {\n      ([downloadThrottled, flushDownload] = progressEventReducer(onDownloadProgress, true));\n      request.addEventListener('progress', downloadThrottled);\n    }\n\n    // Not all browsers support upload events\n    if (onUploadProgress && request.upload) {\n      ([uploadThrottled, flushUpload] = progressEventReducer(onUploadProgress));\n\n      request.upload.addEventListener('progress', uploadThrottled);\n\n      request.upload.addEventListener('loadend', flushUpload);\n    }\n\n    if (_config.cancelToken || _config.signal) {\n      // Handle cancellation\n      // eslint-disable-next-line func-names\n      onCanceled = cancel => {\n        if (!request) {\n          return;\n        }\n        reject(!cancel || cancel.type ? new CanceledError(null, config, request) : cancel);\n        request.abort();\n        request = null;\n      };\n\n      _config.cancelToken && _config.cancelToken.subscribe(onCanceled);\n      if (_config.signal) {\n        _config.signal.aborted ? onCanceled() : _config.signal.addEventListener('abort', onCanceled);\n      }\n    }\n\n    const protocol = parseProtocol(_config.url);\n\n    if (protocol && platform.protocols.indexOf(protocol) === -1) {\n      reject(new AxiosError('Unsupported protocol ' + protocol + ':', AxiosError.ERR_BAD_REQUEST, config));\n      return;\n    }\n\n\n    // Send the request\n    request.send(requestData || null);\n  });\n}\n","import CanceledError from \"../cancel/CanceledError.js\";\nimport AxiosError from \"../core/AxiosError.js\";\nimport utils from '../utils.js';\n\nconst composeSignals = (signals, timeout) => {\n  const {length} = (signals = signals ? signals.filter(Boolean) : []);\n\n  if (timeout || length) {\n    let controller = new AbortController();\n\n    let aborted;\n\n    const onabort = function (reason) {\n      if (!aborted) {\n        aborted = true;\n        unsubscribe();\n        const err = reason instanceof Error ? reason : this.reason;\n        controller.abort(err instanceof AxiosError ? err : new CanceledError(err instanceof Error ? err.message : err));\n      }\n    }\n\n    let timer = timeout && setTimeout(() => {\n      timer = null;\n      onabort(new AxiosError(`timeout ${timeout} of ms exceeded`, AxiosError.ETIMEDOUT))\n    }, timeout)\n\n    const unsubscribe = () => {\n      if (signals) {\n        timer && clearTimeout(timer);\n        timer = null;\n        signals.forEach(signal => {\n          signal.unsubscribe ? signal.unsubscribe(onabort) : signal.removeEventListener('abort', onabort);\n        });\n        signals = null;\n      }\n    }\n\n    signals.forEach((signal) => signal.addEventListener('abort', onabort));\n\n    const {signal} = controller;\n\n    signal.unsubscribe = () => utils.asap(unsubscribe);\n\n    return signal;\n  }\n}\n\nexport default composeSignals;\n","\nexport const streamChunk = function* (chunk, chunkSize) {\n  let len = chunk.byteLength;\n\n  if (!chunkSize || len < chunkSize) {\n    yield chunk;\n    return;\n  }\n\n  let pos = 0;\n  let end;\n\n  while (pos < len) {\n    end = pos + chunkSize;\n    yield chunk.slice(pos, end);\n    pos = end;\n  }\n}\n\nexport const readBytes = async function* (iterable, chunkSize) {\n  for await (const chunk of readStream(iterable)) {\n    yield* streamChunk(chunk, chunkSize);\n  }\n}\n\nconst readStream = async function* (stream) {\n  if (stream[Symbol.asyncIterator]) {\n    yield* stream;\n    return;\n  }\n\n  const reader = stream.getReader();\n  try {\n    for (;;) {\n      const {done, value} = await reader.read();\n      if (done) {\n        break;\n      }\n      yield value;\n    }\n  } finally {\n    await reader.cancel();\n  }\n}\n\nexport const trackStream = (stream, chunkSize, onProgress, onFinish) => {\n  const iterator = readBytes(stream, chunkSize);\n\n  let bytes = 0;\n  let done;\n  let _onFinish = (e) => {\n    if (!done) {\n      done = true;\n      onFinish && onFinish(e);\n    }\n  }\n\n  return new ReadableStream({\n    async pull(controller) {\n      try {\n        const {done, value} = await iterator.next();\n\n        if (done) {\n         _onFinish();\n          controller.close();\n          return;\n        }\n\n        let len = value.byteLength;\n        if (onProgress) {\n          let loadedBytes = bytes += len;\n          onProgress(loadedBytes);\n        }\n        controller.enqueue(new Uint8Array(value));\n      } catch (err) {\n        _onFinish(err);\n        throw err;\n      }\n    },\n    cancel(reason) {\n      _onFinish(reason);\n      return iterator.return();\n    }\n  }, {\n    highWaterMark: 2\n  })\n}\n","import platform from \"../platform/index.js\";\nimport utils from \"../utils.js\";\nimport AxiosError from \"../core/AxiosError.js\";\nimport composeSignals from \"../helpers/composeSignals.js\";\nimport {trackStream} from \"../helpers/trackStream.js\";\nimport AxiosHeaders from \"../core/AxiosHeaders.js\";\nimport {progressEventReducer, progressEventDecorator, asyncDecorator} from \"../helpers/progressEventReducer.js\";\nimport resolveConfig from \"../helpers/resolveConfig.js\";\nimport settle from \"../core/settle.js\";\n\nconst isFetchSupported = typeof fetch === 'function' && typeof Request === 'function' && typeof Response === 'function';\nconst isReadableStreamSupported = isFetchSupported && typeof ReadableStream === 'function';\n\n// used only inside the fetch adapter\nconst encodeText = isFetchSupported && (typeof TextEncoder === 'function' ?\n    ((encoder) => (str) => encoder.encode(str))(new TextEncoder()) :\n    async (str) => new Uint8Array(await new Response(str).arrayBuffer())\n);\n\nconst test = (fn, ...args) => {\n  try {\n    return !!fn(...args);\n  } catch (e) {\n    return false\n  }\n}\n\nconst supportsRequestStream = isReadableStreamSupported && test(() => {\n  let duplexAccessed = false;\n\n  const hasContentType = new Request(platform.origin, {\n    body: new ReadableStream(),\n    method: 'POST',\n    get duplex() {\n      duplexAccessed = true;\n      return 'half';\n    },\n  }).headers.has('Content-Type');\n\n  return duplexAccessed && !hasContentType;\n});\n\nconst DEFAULT_CHUNK_SIZE = 64 * 1024;\n\nconst supportsResponseStream = isReadableStreamSupported &&\n  test(() => utils.isReadableStream(new Response('').body));\n\n\nconst resolvers = {\n  stream: supportsResponseStream && ((res) => res.body)\n};\n\nisFetchSupported && (((res) => {\n  ['text', 'arrayBuffer', 'blob', 'formData', 'stream'].forEach(type => {\n    !resolvers[type] && (resolvers[type] = utils.isFunction(res[type]) ? (res) => res[type]() :\n      (_, config) => {\n        throw new AxiosError(`Response type '${type}' is not supported`, AxiosError.ERR_NOT_SUPPORT, config);\n      })\n  });\n})(new Response));\n\nconst getBodyLength = async (body) => {\n  if (body == null) {\n    return 0;\n  }\n\n  if(utils.isBlob(body)) {\n    return body.size;\n  }\n\n  if(utils.isSpecCompliantForm(body)) {\n    const _request = new Request(platform.origin, {\n      method: 'POST',\n      body,\n    });\n    return (await _request.arrayBuffer()).byteLength;\n  }\n\n  if(utils.isArrayBufferView(body) || utils.isArrayBuffer(body)) {\n    return body.byteLength;\n  }\n\n  if(utils.isURLSearchParams(body)) {\n    body = body + '';\n  }\n\n  if(utils.isString(body)) {\n    return (await encodeText(body)).byteLength;\n  }\n}\n\nconst resolveBodyLength = async (headers, body) => {\n  const length = utils.toFiniteNumber(headers.getContentLength());\n\n  return length == null ? getBodyLength(body) : length;\n}\n\nexport default isFetchSupported && (async (config) => {\n  let {\n    url,\n    method,\n    data,\n    signal,\n    cancelToken,\n    timeout,\n    onDownloadProgress,\n    onUploadProgress,\n    responseType,\n    headers,\n    withCredentials = 'same-origin',\n    fetchOptions\n  } = resolveConfig(config);\n\n  responseType = responseType ? (responseType + '').toLowerCase() : 'text';\n\n  let composedSignal = composeSignals([signal, cancelToken && cancelToken.toAbortSignal()], timeout);\n\n  let request;\n\n  const unsubscribe = composedSignal && composedSignal.unsubscribe && (() => {\n      composedSignal.unsubscribe();\n  });\n\n  let requestContentLength;\n\n  try {\n    if (\n      onUploadProgress && supportsRequestStream && method !== 'get' && method !== 'head' &&\n      (requestContentLength = await resolveBodyLength(headers, data)) !== 0\n    ) {\n      let _request = new Request(url, {\n        method: 'POST',\n        body: data,\n        duplex: \"half\"\n      });\n\n      let contentTypeHeader;\n\n      if (utils.isFormData(data) && (contentTypeHeader = _request.headers.get('content-type'))) {\n        headers.setContentType(contentTypeHeader)\n      }\n\n      if (_request.body) {\n        const [onProgress, flush] = progressEventDecorator(\n          requestContentLength,\n          progressEventReducer(asyncDecorator(onUploadProgress))\n        );\n\n        data = trackStream(_request.body, DEFAULT_CHUNK_SIZE, onProgress, flush);\n      }\n    }\n\n    if (!utils.isString(withCredentials)) {\n      withCredentials = withCredentials ? 'include' : 'omit';\n    }\n\n    // Cloudflare Workers throws when credentials are defined\n    // see https://github.com/cloudflare/workerd/issues/902\n    const isCredentialsSupported = \"credentials\" in Request.prototype;\n    request = new Request(url, {\n      ...fetchOptions,\n      signal: composedSignal,\n      method: method.toUpperCase(),\n      headers: headers.normalize().toJSON(),\n      body: data,\n      duplex: \"half\",\n      credentials: isCredentialsSupported ? withCredentials : undefined\n    });\n\n    let response = await fetch(request);\n\n    const isStreamResponse = supportsResponseStream && (responseType === 'stream' || responseType === 'response');\n\n    if (supportsResponseStream && (onDownloadProgress || (isStreamResponse && unsubscribe))) {\n      const options = {};\n\n      ['status', 'statusText', 'headers'].forEach(prop => {\n        options[prop] = response[prop];\n      });\n\n      const responseContentLength = utils.toFiniteNumber(response.headers.get('content-length'));\n\n      const [onProgress, flush] = onDownloadProgress && progressEventDecorator(\n        responseContentLength,\n        progressEventReducer(asyncDecorator(onDownloadProgress), true)\n      ) || [];\n\n      response = new Response(\n        trackStream(response.body, DEFAULT_CHUNK_SIZE, onProgress, () => {\n          flush && flush();\n          unsubscribe && unsubscribe();\n        }),\n        options\n      );\n    }\n\n    responseType = responseType || 'text';\n\n    let responseData = await resolvers[utils.findKey(resolvers, responseType) || 'text'](response, config);\n\n    !isStreamResponse && unsubscribe && unsubscribe();\n\n    return await new Promise((resolve, reject) => {\n      settle(resolve, reject, {\n        data: responseData,\n        headers: AxiosHeaders.from(response.headers),\n        status: response.status,\n        statusText: response.statusText,\n        config,\n        request\n      })\n    })\n  } catch (err) {\n    unsubscribe && unsubscribe();\n\n    if (err && err.name === 'TypeError' && /fetch/i.test(err.message)) {\n      throw Object.assign(\n        new AxiosError('Network Error', AxiosError.ERR_NETWORK, config, request),\n        {\n          cause: err.cause || err\n        }\n      )\n    }\n\n    throw AxiosError.from(err, err && err.code, config, request);\n  }\n});\n\n\n","import utils from '../utils.js';\nimport httpAdapter from './http.js';\nimport xhrAdapter from './xhr.js';\nimport fetchAdapter from './fetch.js';\nimport AxiosError from \"../core/AxiosError.js\";\n\nconst knownAdapters = {\n  http: httpAdapter,\n  xhr: xhrAdapter,\n  fetch: fetchAdapter\n}\n\nutils.forEach(knownAdapters, (fn, value) => {\n  if (fn) {\n    try {\n      Object.defineProperty(fn, 'name', {value});\n    } catch (e) {\n      // eslint-disable-next-line no-empty\n    }\n    Object.defineProperty(fn, 'adapterName', {value});\n  }\n});\n\nconst renderReason = (reason) => `- ${reason}`;\n\nconst isResolvedHandle = (adapter) => utils.isFunction(adapter) || adapter === null || adapter === false;\n\nexport default {\n  getAdapter: (adapters) => {\n    adapters = utils.isArray(adapters) ? adapters : [adapters];\n\n    const {length} = adapters;\n    let nameOrAdapter;\n    let adapter;\n\n    const rejectedReasons = {};\n\n    for (let i = 0; i < length; i++) {\n      nameOrAdapter = adapters[i];\n      let id;\n\n      adapter = nameOrAdapter;\n\n      if (!isResolvedHandle(nameOrAdapter)) {\n        adapter = knownAdapters[(id = String(nameOrAdapter)).toLowerCase()];\n\n        if (adapter === undefined) {\n          throw new AxiosError(`Unknown adapter '${id}'`);\n        }\n      }\n\n      if (adapter) {\n        break;\n      }\n\n      rejectedReasons[id || '#' + i] = adapter;\n    }\n\n    if (!adapter) {\n\n      const reasons = Object.entries(rejectedReasons)\n        .map(([id, state]) => `adapter ${id} ` +\n          (state === false ? 'is not supported by the environment' : 'is not available in the build')\n        );\n\n      let s = length ?\n        (reasons.length > 1 ? 'since :\\n' + reasons.map(renderReason).join('\\n') : ' ' + renderReason(reasons[0])) :\n        'as no adapter specified';\n\n      throw new AxiosError(\n        `There is no suitable adapter to dispatch the request ` + s,\n        'ERR_NOT_SUPPORT'\n      );\n    }\n\n    return adapter;\n  },\n  adapters: knownAdapters\n}\n","'use strict';\n\nimport transformData from './transformData.js';\nimport isCancel from '../cancel/isCancel.js';\nimport defaults from '../defaults/index.js';\nimport CanceledError from '../cancel/CanceledError.js';\nimport AxiosHeaders from '../core/AxiosHeaders.js';\nimport adapters from \"../adapters/adapters.js\";\n\n/**\n * Throws a `CanceledError` if cancellation has been requested.\n *\n * @param {Object} config The config that is to be used for the request\n *\n * @returns {void}\n */\nfunction throwIfCancellationRequested(config) {\n  if (config.cancelToken) {\n    config.cancelToken.throwIfRequested();\n  }\n\n  if (config.signal && config.signal.aborted) {\n    throw new CanceledError(null, config);\n  }\n}\n\n/**\n * Dispatch a request to the server using the configured adapter.\n *\n * @param {object} config The config that is to be used for the request\n *\n * @returns {Promise} The Promise to be fulfilled\n */\nexport default function dispatchRequest(config) {\n  throwIfCancellationRequested(config);\n\n  config.headers = AxiosHeaders.from(config.headers);\n\n  // Transform request data\n  config.data = transformData.call(\n    config,\n    config.transformRequest\n  );\n\n  if (['post', 'put', 'patch'].indexOf(config.method) !== -1) {\n    config.headers.setContentType('application/x-www-form-urlencoded', false);\n  }\n\n  const adapter = adapters.getAdapter(config.adapter || defaults.adapter);\n\n  return adapter(config).then(function onAdapterResolution(response) {\n    throwIfCancellationRequested(config);\n\n    // Transform response data\n    response.data = transformData.call(\n      config,\n      config.transformResponse,\n      response\n    );\n\n    response.headers = AxiosHeaders.from(response.headers);\n\n    return response;\n  }, function onAdapterRejection(reason) {\n    if (!isCancel(reason)) {\n      throwIfCancellationRequested(config);\n\n      // Transform response data\n      if (reason && reason.response) {\n        reason.response.data = transformData.call(\n          config,\n          config.transformResponse,\n          reason.response\n        );\n        reason.response.headers = AxiosHeaders.from(reason.response.headers);\n      }\n    }\n\n    return Promise.reject(reason);\n  });\n}\n","export const VERSION = \"1.7.9\";","'use strict';\n\nimport {VERSION} from '../env/data.js';\nimport AxiosError from '../core/AxiosError.js';\n\nconst validators = {};\n\n// eslint-disable-next-line func-names\n['object', 'boolean', 'number', 'function', 'string', 'symbol'].forEach((type, i) => {\n  validators[type] = function validator(thing) {\n    return typeof thing === type || 'a' + (i < 1 ? 'n ' : ' ') + type;\n  };\n});\n\nconst deprecatedWarnings = {};\n\n/**\n * Transitional option validator\n *\n * @param {function|boolean?} validator - set to false if the transitional option has been removed\n * @param {string?} version - deprecated version / removed since version\n * @param {string?} message - some message with additional info\n *\n * @returns {function}\n */\nvalidators.transitional = function transitional(validator, version, message) {\n  function formatMessage(opt, desc) {\n    return '[Axios v' + VERSION + '] Transitional option \\'' + opt + '\\'' + desc + (message ? '. ' + message : '');\n  }\n\n  // eslint-disable-next-line func-names\n  return (value, opt, opts) => {\n    if (validator === false) {\n      throw new AxiosError(\n        formatMessage(opt, ' has been removed' + (version ? ' in ' + version : '')),\n        AxiosError.ERR_DEPRECATED\n      );\n    }\n\n    if (version && !deprecatedWarnings[opt]) {\n      deprecatedWarnings[opt] = true;\n      // eslint-disable-next-line no-console\n      console.warn(\n        formatMessage(\n          opt,\n          ' has been deprecated since v' + version + ' and will be removed in the near future'\n        )\n      );\n    }\n\n    return validator ? validator(value, opt, opts) : true;\n  };\n};\n\nvalidators.spelling = function spelling(correctSpelling) {\n  return (value, opt) => {\n    // eslint-disable-next-line no-console\n    console.warn(`${opt} is likely a misspelling of ${correctSpelling}`);\n    return true;\n  }\n};\n\n/**\n * Assert object's properties type\n *\n * @param {object} options\n * @param {object} schema\n * @param {boolean?} allowUnknown\n *\n * @returns {object}\n */\n\nfunction assertOptions(options, schema, allowUnknown) {\n  if (typeof options !== 'object') {\n    throw new AxiosError('options must be an object', AxiosError.ERR_BAD_OPTION_VALUE);\n  }\n  const keys = Object.keys(options);\n  let i = keys.length;\n  while (i-- > 0) {\n    const opt = keys[i];\n    const validator = schema[opt];\n    if (validator) {\n      const value = options[opt];\n      const result = value === undefined || validator(value, opt, options);\n      if (result !== true) {\n        throw new AxiosError('option ' + opt + ' must be ' + result, AxiosError.ERR_BAD_OPTION_VALUE);\n      }\n      continue;\n    }\n    if (allowUnknown !== true) {\n      throw new AxiosError('Unknown option ' + opt, AxiosError.ERR_BAD_OPTION);\n    }\n  }\n}\n\nexport default {\n  assertOptions,\n  validators\n};\n","'use strict';\n\nimport utils from './../utils.js';\nimport buildURL from '../helpers/buildURL.js';\nimport InterceptorManager from './InterceptorManager.js';\nimport dispatchRequest from './dispatchRequest.js';\nimport mergeConfig from './mergeConfig.js';\nimport buildFullPath from './buildFullPath.js';\nimport validator from '../helpers/validator.js';\nimport AxiosHeaders from './AxiosHeaders.js';\n\nconst validators = validator.validators;\n\n/**\n * Create a new instance of Axios\n *\n * @param {Object} instanceConfig The default config for the instance\n *\n * @return {Axios} A new instance of Axios\n */\nclass Axios {\n  constructor(instanceConfig) {\n    this.defaults = instanceConfig;\n    this.interceptors = {\n      request: new InterceptorManager(),\n      response: new InterceptorManager()\n    };\n  }\n\n  /**\n   * Dispatch a request\n   *\n   * @param {String|Object} configOrUrl The config specific for this request (merged with this.defaults)\n   * @param {?Object} config\n   *\n   * @returns {Promise} The Promise to be fulfilled\n   */\n  async request(configOrUrl, config) {\n    try {\n      return await this._request(configOrUrl, config);\n    } catch (err) {\n      if (err instanceof Error) {\n        let dummy = {};\n\n        Error.captureStackTrace ? Error.captureStackTrace(dummy) : (dummy = new Error());\n\n        // slice off the Error: ... line\n        const stack = dummy.stack ? dummy.stack.replace(/^.+\\n/, '') : '';\n        try {\n          if (!err.stack) {\n            err.stack = stack;\n            // match without the 2 top stack lines\n          } else if (stack && !String(err.stack).endsWith(stack.replace(/^.+\\n.+\\n/, ''))) {\n            err.stack += '\\n' + stack\n          }\n        } catch (e) {\n          // ignore the case where \"stack\" is an un-writable property\n        }\n      }\n\n      throw err;\n    }\n  }\n\n  _request(configOrUrl, config) {\n    /*eslint no-param-reassign:0*/\n    // Allow for axios('example/url'[, config]) a la fetch API\n    if (typeof configOrUrl === 'string') {\n      config = config || {};\n      config.url = configOrUrl;\n    } else {\n      config = configOrUrl || {};\n    }\n\n    config = mergeConfig(this.defaults, config);\n\n    const {transitional, paramsSerializer, headers} = config;\n\n    if (transitional !== undefined) {\n      validator.assertOptions(transitional, {\n        silentJSONParsing: validators.transitional(validators.boolean),\n        forcedJSONParsing: validators.transitional(validators.boolean),\n        clarifyTimeoutError: validators.transitional(validators.boolean)\n      }, false);\n    }\n\n    if (paramsSerializer != null) {\n      if (utils.isFunction(paramsSerializer)) {\n        config.paramsSerializer = {\n          serialize: paramsSerializer\n        }\n      } else {\n        validator.assertOptions(paramsSerializer, {\n          encode: validators.function,\n          serialize: validators.function\n        }, true);\n      }\n    }\n\n    validator.assertOptions(config, {\n      baseUrl: validators.spelling('baseURL'),\n      withXsrfToken: validators.spelling('withXSRFToken')\n    }, true);\n\n    // Set config.method\n    config.method = (config.method || this.defaults.method || 'get').toLowerCase();\n\n    // Flatten headers\n    let contextHeaders = headers && utils.merge(\n      headers.common,\n      headers[config.method]\n    );\n\n    headers && utils.forEach(\n      ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],\n      (method) => {\n        delete headers[method];\n      }\n    );\n\n    config.headers = AxiosHeaders.concat(contextHeaders, headers);\n\n    // filter out skipped interceptors\n    const requestInterceptorChain = [];\n    let synchronousRequestInterceptors = true;\n    this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {\n      if (typeof interceptor.runWhen === 'function' && interceptor.runWhen(config) === false) {\n        return;\n      }\n\n      synchronousRequestInterceptors = synchronousRequestInterceptors && interceptor.synchronous;\n\n      requestInterceptorChain.unshift(interceptor.fulfilled, interceptor.rejected);\n    });\n\n    const responseInterceptorChain = [];\n    this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {\n      responseInterceptorChain.push(interceptor.fulfilled, interceptor.rejected);\n    });\n\n    let promise;\n    let i = 0;\n    let len;\n\n    if (!synchronousRequestInterceptors) {\n      const chain = [dispatchRequest.bind(this), undefined];\n      chain.unshift.apply(chain, requestInterceptorChain);\n      chain.push.apply(chain, responseInterceptorChain);\n      len = chain.length;\n\n      promise = Promise.resolve(config);\n\n      while (i < len) {\n        promise = promise.then(chain[i++], chain[i++]);\n      }\n\n      return promise;\n    }\n\n    len = requestInterceptorChain.length;\n\n    let newConfig = config;\n\n    i = 0;\n\n    while (i < len) {\n      const onFulfilled = requestInterceptorChain[i++];\n      const onRejected = requestInterceptorChain[i++];\n      try {\n        newConfig = onFulfilled(newConfig);\n      } catch (error) {\n        onRejected.call(this, error);\n        break;\n      }\n    }\n\n    try {\n      promise = dispatchRequest.call(this, newConfig);\n    } catch (error) {\n      return Promise.reject(error);\n    }\n\n    i = 0;\n    len = responseInterceptorChain.length;\n\n    while (i < len) {\n      promise = promise.then(responseInterceptorChain[i++], responseInterceptorChain[i++]);\n    }\n\n    return promise;\n  }\n\n  getUri(config) {\n    config = mergeConfig(this.defaults, config);\n    const fullPath = buildFullPath(config.baseURL, config.url);\n    return buildURL(fullPath, config.params, config.paramsSerializer);\n  }\n}\n\n// Provide aliases for supported request methods\nutils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {\n  /*eslint func-names:0*/\n  Axios.prototype[method] = function(url, config) {\n    return this.request(mergeConfig(config || {}, {\n      method,\n      url,\n      data: (config || {}).data\n    }));\n  };\n});\n\nutils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {\n  /*eslint func-names:0*/\n\n  function generateHTTPMethod(isForm) {\n    return function httpMethod(url, data, config) {\n      return this.request(mergeConfig(config || {}, {\n        method,\n        headers: isForm ? {\n          'Content-Type': 'multipart/form-data'\n        } : {},\n        url,\n        data\n      }));\n    };\n  }\n\n  Axios.prototype[method] = generateHTTPMethod();\n\n  Axios.prototype[method + 'Form'] = generateHTTPMethod(true);\n});\n\nexport default Axios;\n","'use strict';\n\nimport CanceledError from './CanceledError.js';\n\n/**\n * A `CancelToken` is an object that can be used to request cancellation of an operation.\n *\n * @param {Function} executor The executor function.\n *\n * @returns {CancelToken}\n */\nclass CancelToken {\n  constructor(executor) {\n    if (typeof executor !== 'function') {\n      throw new TypeError('executor must be a function.');\n    }\n\n    let resolvePromise;\n\n    this.promise = new Promise(function promiseExecutor(resolve) {\n      resolvePromise = resolve;\n    });\n\n    const token = this;\n\n    // eslint-disable-next-line func-names\n    this.promise.then(cancel => {\n      if (!token._listeners) return;\n\n      let i = token._listeners.length;\n\n      while (i-- > 0) {\n        token._listeners[i](cancel);\n      }\n      token._listeners = null;\n    });\n\n    // eslint-disable-next-line func-names\n    this.promise.then = onfulfilled => {\n      let _resolve;\n      // eslint-disable-next-line func-names\n      const promise = new Promise(resolve => {\n        token.subscribe(resolve);\n        _resolve = resolve;\n      }).then(onfulfilled);\n\n      promise.cancel = function reject() {\n        token.unsubscribe(_resolve);\n      };\n\n      return promise;\n    };\n\n    executor(function cancel(message, config, request) {\n      if (token.reason) {\n        // Cancellation has already been requested\n        return;\n      }\n\n      token.reason = new CanceledError(message, config, request);\n      resolvePromise(token.reason);\n    });\n  }\n\n  /**\n   * Throws a `CanceledError` if cancellation has been requested.\n   */\n  throwIfRequested() {\n    if (this.reason) {\n      throw this.reason;\n    }\n  }\n\n  /**\n   * Subscribe to the cancel signal\n   */\n\n  subscribe(listener) {\n    if (this.reason) {\n      listener(this.reason);\n      return;\n    }\n\n    if (this._listeners) {\n      this._listeners.push(listener);\n    } else {\n      this._listeners = [listener];\n    }\n  }\n\n  /**\n   * Unsubscribe from the cancel signal\n   */\n\n  unsubscribe(listener) {\n    if (!this._listeners) {\n      return;\n    }\n    const index = this._listeners.indexOf(listener);\n    if (index !== -1) {\n      this._listeners.splice(index, 1);\n    }\n  }\n\n  toAbortSignal() {\n    const controller = new AbortController();\n\n    const abort = (err) => {\n      controller.abort(err);\n    };\n\n    this.subscribe(abort);\n\n    controller.signal.unsubscribe = () => this.unsubscribe(abort);\n\n    return controller.signal;\n  }\n\n  /**\n   * Returns an object that contains a new `CancelToken` and a function that, when called,\n   * cancels the `CancelToken`.\n   */\n  static source() {\n    let cancel;\n    const token = new CancelToken(function executor(c) {\n      cancel = c;\n    });\n    return {\n      token,\n      cancel\n    };\n  }\n}\n\nexport default CancelToken;\n","'use strict';\n\n/**\n * Syntactic sugar for invoking a function and expanding an array for arguments.\n *\n * Common use case would be to use `Function.prototype.apply`.\n *\n *  ```js\n *  function f(x, y, z) {}\n *  var args = [1, 2, 3];\n *  f.apply(null, args);\n *  ```\n *\n * With `spread` this example can be re-written.\n *\n *  ```js\n *  spread(function(x, y, z) {})([1, 2, 3]);\n *  ```\n *\n * @param {Function} callback\n *\n * @returns {Function}\n */\nexport default function spread(callback) 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BadRequest: 400,\n  Unauthorized: 401,\n  PaymentRequired: 402,\n  Forbidden: 403,\n  NotFound: 404,\n  MethodNotAllowed: 405,\n  NotAcceptable: 406,\n  ProxyAuthenticationRequired: 407,\n  RequestTimeout: 408,\n  Conflict: 409,\n  Gone: 410,\n  LengthRequired: 411,\n  PreconditionFailed: 412,\n  PayloadTooLarge: 413,\n  UriTooLong: 414,\n  UnsupportedMediaType: 415,\n  RangeNotSatisfiable: 416,\n  ExpectationFailed: 417,\n  ImATeapot: 418,\n  MisdirectedRequest: 421,\n  UnprocessableEntity: 422,\n  Locked: 423,\n  FailedDependency: 424,\n  TooEarly: 425,\n  UpgradeRequired: 426,\n  PreconditionRequired: 428,\n  TooManyRequests: 429,\n  RequestHeaderFieldsTooLarge: 431,\n  UnavailableForLegalReasons: 451,\n  InternalServerError: 500,\n  NotImplemented: 501,\n  BadGateway: 502,\n  ServiceUnavailable: 503,\n  GatewayTimeout: 504,\n  HttpVersionNotSupported: 505,\n  VariantAlsoNegotiates: 506,\n  InsufficientStorage: 507,\n  LoopDetected: 508,\n  NotExtended: 510,\n  NetworkAuthenticationRequired: 511,\n};\n\nObject.entries(HttpStatusCode).forEach(([key, value]) => {\n  HttpStatusCode[value] = key;\n});\n\nexport default HttpStatusCode;\n","'use strict';\n\nimport utils from './utils.js';\nimport bind from './helpers/bind.js';\nimport Axios from './core/Axios.js';\nimport mergeConfig from './core/mergeConfig.js';\nimport defaults from './defaults/index.js';\nimport formDataToJSON from './helpers/formDataToJSON.js';\nimport CanceledError from './cancel/CanceledError.js';\nimport CancelToken from './cancel/CancelToken.js';\nimport isCancel from './cancel/isCancel.js';\nimport {VERSION} from './env/data.js';\nimport toFormData from './helpers/toFormData.js';\nimport AxiosError from './core/AxiosError.js';\nimport spread from './helpers/spread.js';\nimport isAxiosError from './helpers/isAxiosError.js';\nimport AxiosHeaders from \"./core/AxiosHeaders.js\";\nimport adapters from './adapters/adapters.js';\nimport HttpStatusCode from './helpers/HttpStatusCode.js';\n\n/**\n * Create an instance of Axios\n *\n * @param {Object} defaultConfig The default config for the instance\n *\n * @returns {Axios} A new instance of Axios\n */\nfunction createInstance(defaultConfig) {\n  const context = new Axios(defaultConfig);\n  const instance = bind(Axios.prototype.request, context);\n\n  // Copy axios.prototype to instance\n  utils.extend(instance, Axios.prototype, context, {allOwnKeys: true});\n\n  // Copy context to instance\n  utils.extend(instance, context, null, {allOwnKeys: true});\n\n  // Factory for creating new instances\n  instance.create = function create(instanceConfig) {\n    return createInstance(mergeConfig(defaultConfig, instanceConfig));\n  };\n\n  return instance;\n}\n\n// Create the default instance to be exported\nconst axios = createInstance(defaults);\n\n// Expose Axios class to allow class inheritance\naxios.Axios = Axios;\n\n// Expose Cancel & CancelToken\naxios.CanceledError = 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diff --git a/backend/node_modules/axios/dist/esm/axios.js b/backend/node_modules/axios/dist/esm/axios.js
new file mode 100644
index 0000000..1bc318d
--- /dev/null
+++ b/backend/node_modules/axios/dist/esm/axios.js
@@ -0,0 +1,3745 @@
+// Axios v1.7.9 Copyright (c) 2024 Matt Zabriskie and contributors
+function bind(fn, thisArg) {
+  return function wrap() {
+    return fn.apply(thisArg, arguments);
+  };
+}
+
+// utils is a library of generic helper functions non-specific to axios
+
+const {toString} = Object.prototype;
+const {getPrototypeOf} = Object;
+
+const kindOf = (cache => thing => {
+    const str = toString.call(thing);
+    return cache[str] || (cache[str] = str.slice(8, -1).toLowerCase());
+})(Object.create(null));
+
+const kindOfTest = (type) => {
+  type = type.toLowerCase();
+  return (thing) => kindOf(thing) === type
+};
+
+const typeOfTest = type => thing => typeof thing === type;
+
+/**
+ * Determine if a value is an Array
+ *
+ * @param {Object} val The value to test
+ *
+ * @returns {boolean} True if value is an Array, otherwise false
+ */
+const {isArray} = Array;
+
+/**
+ * Determine if a value is undefined
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if the value is undefined, otherwise false
+ */
+const isUndefined = typeOfTest('undefined');
+
+/**
+ * Determine if a value is a Buffer
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a Buffer, otherwise false
+ */
+function isBuffer(val) {
+  return val !== null && !isUndefined(val) && val.constructor !== null && !isUndefined(val.constructor)
+    && isFunction(val.constructor.isBuffer) && val.constructor.isBuffer(val);
+}
+
+/**
+ * Determine if a value is an ArrayBuffer
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is an ArrayBuffer, otherwise false
+ */
+const isArrayBuffer = kindOfTest('ArrayBuffer');
+
+
+/**
+ * Determine if a value is a view on an ArrayBuffer
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false
+ */
+function isArrayBufferView(val) {
+  let result;
+  if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) {
+    result = ArrayBuffer.isView(val);
+  } else {
+    result = (val) && (val.buffer) && (isArrayBuffer(val.buffer));
+  }
+  return result;
+}
+
+/**
+ * Determine if a value is a String
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a String, otherwise false
+ */
+const isString = typeOfTest('string');
+
+/**
+ * Determine if a value is a Function
+ *
+ * @param {*} val The value to test
+ * @returns {boolean} True if value is a Function, otherwise false
+ */
+const isFunction = typeOfTest('function');
+
+/**
+ * Determine if a value is a Number
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a Number, otherwise false
+ */
+const isNumber = typeOfTest('number');
+
+/**
+ * Determine if a value is an Object
+ *
+ * @param {*} thing The value to test
+ *
+ * @returns {boolean} True if value is an Object, otherwise false
+ */
+const isObject = (thing) => thing !== null && typeof thing === 'object';
+
+/**
+ * Determine if a value is a Boolean
+ *
+ * @param {*} thing The value to test
+ * @returns {boolean} True if value is a Boolean, otherwise false
+ */
+const isBoolean = thing => thing === true || thing === false;
+
+/**
+ * Determine if a value is a plain Object
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a plain Object, otherwise false
+ */
+const isPlainObject = (val) => {
+  if (kindOf(val) !== 'object') {
+    return false;
+  }
+
+  const prototype = getPrototypeOf(val);
+  return (prototype === null || prototype === Object.prototype || Object.getPrototypeOf(prototype) === null) && !(Symbol.toStringTag in val) && !(Symbol.iterator in val);
+};
+
+/**
+ * Determine if a value is a Date
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a Date, otherwise false
+ */
+const isDate = kindOfTest('Date');
+
+/**
+ * Determine if a value is a File
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a File, otherwise false
+ */
+const isFile = kindOfTest('File');
+
+/**
+ * Determine if a value is a Blob
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a Blob, otherwise false
+ */
+const isBlob = kindOfTest('Blob');
+
+/**
+ * Determine if a value is a FileList
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a File, otherwise false
+ */
+const isFileList = kindOfTest('FileList');
+
+/**
+ * Determine if a value is a Stream
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a Stream, otherwise false
+ */
+const isStream = (val) => isObject(val) && isFunction(val.pipe);
+
+/**
+ * Determine if a value is a FormData
+ *
+ * @param {*} thing The value to test
+ *
+ * @returns {boolean} True if value is an FormData, otherwise false
+ */
+const isFormData = (thing) => {
+  let kind;
+  return thing && (
+    (typeof FormData === 'function' && thing instanceof FormData) || (
+      isFunction(thing.append) && (
+        (kind = kindOf(thing)) === 'formdata' ||
+        // detect form-data instance
+        (kind === 'object' && isFunction(thing.toString) && thing.toString() === '[object FormData]')
+      )
+    )
+  )
+};
+
+/**
+ * Determine if a value is a URLSearchParams object
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a URLSearchParams object, otherwise false
+ */
+const isURLSearchParams = kindOfTest('URLSearchParams');
+
+const [isReadableStream, isRequest, isResponse, isHeaders] = ['ReadableStream', 'Request', 'Response', 'Headers'].map(kindOfTest);
+
+/**
+ * Trim excess whitespace off the beginning and end of a string
+ *
+ * @param {String} str The String to trim
+ *
+ * @returns {String} The String freed of excess whitespace
+ */
+const trim = (str) => str.trim ?
+  str.trim() : str.replace(/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, '');
+
+/**
+ * Iterate over an Array or an Object invoking a function for each item.
+ *
+ * If `obj` is an Array callback will be called passing
+ * the value, index, and complete array for each item.
+ *
+ * If 'obj' is an Object callback will be called passing
+ * the value, key, and complete object for each property.
+ *
+ * @param {Object|Array} obj The object to iterate
+ * @param {Function} fn The callback to invoke for each item
+ *
+ * @param {Boolean} [allOwnKeys = false]
+ * @returns {any}
+ */
+function forEach(obj, fn, {allOwnKeys = false} = {}) {
+  // Don't bother if no value provided
+  if (obj === null || typeof obj === 'undefined') {
+    return;
+  }
+
+  let i;
+  let l;
+
+  // Force an array if not already something iterable
+  if (typeof obj !== 'object') {
+    /*eslint no-param-reassign:0*/
+    obj = [obj];
+  }
+
+  if (isArray(obj)) {
+    // Iterate over array values
+    for (i = 0, l = obj.length; i < l; i++) {
+      fn.call(null, obj[i], i, obj);
+    }
+  } else {
+    // Iterate over object keys
+    const keys = allOwnKeys ? Object.getOwnPropertyNames(obj) : Object.keys(obj);
+    const len = keys.length;
+    let key;
+
+    for (i = 0; i < len; i++) {
+      key = keys[i];
+      fn.call(null, obj[key], key, obj);
+    }
+  }
+}
+
+function findKey(obj, key) {
+  key = key.toLowerCase();
+  const keys = Object.keys(obj);
+  let i = keys.length;
+  let _key;
+  while (i-- > 0) {
+    _key = keys[i];
+    if (key === _key.toLowerCase()) {
+      return _key;
+    }
+  }
+  return null;
+}
+
+const _global = (() => {
+  /*eslint no-undef:0*/
+  if (typeof globalThis !== "undefined") return globalThis;
+  return typeof self !== "undefined" ? self : (typeof window !== 'undefined' ? window : global)
+})();
+
+const isContextDefined = (context) => !isUndefined(context) && context !== _global;
+
+/**
+ * Accepts varargs expecting each argument to be an object, then
+ * immutably merges the properties of each object and returns result.
+ *
+ * When multiple objects contain the same key the later object in
+ * the arguments list will take precedence.
+ *
+ * Example:
+ *
+ * ```js
+ * var result = merge({foo: 123}, {foo: 456});
+ * console.log(result.foo); // outputs 456
+ * ```
+ *
+ * @param {Object} obj1 Object to merge
+ *
+ * @returns {Object} Result of all merge properties
+ */
+function merge(/* obj1, obj2, obj3, ... */) {
+  const {caseless} = isContextDefined(this) && this || {};
+  const result = {};
+  const assignValue = (val, key) => {
+    const targetKey = caseless && findKey(result, key) || key;
+    if (isPlainObject(result[targetKey]) && isPlainObject(val)) {
+      result[targetKey] = merge(result[targetKey], val);
+    } else if (isPlainObject(val)) {
+      result[targetKey] = merge({}, val);
+    } else if (isArray(val)) {
+      result[targetKey] = val.slice();
+    } else {
+      result[targetKey] = val;
+    }
+  };
+
+  for (let i = 0, l = arguments.length; i < l; i++) {
+    arguments[i] && forEach(arguments[i], assignValue);
+  }
+  return result;
+}
+
+/**
+ * Extends object a by mutably adding to it the properties of object b.
+ *
+ * @param {Object} a The object to be extended
+ * @param {Object} b The object to copy properties from
+ * @param {Object} thisArg The object to bind function to
+ *
+ * @param {Boolean} [allOwnKeys]
+ * @returns {Object} The resulting value of object a
+ */
+const extend = (a, b, thisArg, {allOwnKeys}= {}) => {
+  forEach(b, (val, key) => {
+    if (thisArg && isFunction(val)) {
+      a[key] = bind(val, thisArg);
+    } else {
+      a[key] = val;
+    }
+  }, {allOwnKeys});
+  return a;
+};
+
+/**
+ * Remove byte order marker. This catches EF BB BF (the UTF-8 BOM)
+ *
+ * @param {string} content with BOM
+ *
+ * @returns {string} content value without BOM
+ */
+const stripBOM = (content) => {
+  if (content.charCodeAt(0) === 0xFEFF) {
+    content = content.slice(1);
+  }
+  return content;
+};
+
+/**
+ * Inherit the prototype methods from one constructor into another
+ * @param {function} constructor
+ * @param {function} superConstructor
+ * @param {object} [props]
+ * @param {object} [descriptors]
+ *
+ * @returns {void}
+ */
+const inherits = (constructor, superConstructor, props, descriptors) => {
+  constructor.prototype = Object.create(superConstructor.prototype, descriptors);
+  constructor.prototype.constructor = constructor;
+  Object.defineProperty(constructor, 'super', {
+    value: superConstructor.prototype
+  });
+  props && Object.assign(constructor.prototype, props);
+};
+
+/**
+ * Resolve object with deep prototype chain to a flat object
+ * @param {Object} sourceObj source object
+ * @param {Object} [destObj]
+ * @param {Function|Boolean} [filter]
+ * @param {Function} [propFilter]
+ *
+ * @returns {Object}
+ */
+const toFlatObject = (sourceObj, destObj, filter, propFilter) => {
+  let props;
+  let i;
+  let prop;
+  const merged = {};
+
+  destObj = destObj || {};
+  // eslint-disable-next-line no-eq-null,eqeqeq
+  if (sourceObj == null) return destObj;
+
+  do {
+    props = Object.getOwnPropertyNames(sourceObj);
+    i = props.length;
+    while (i-- > 0) {
+      prop = props[i];
+      if ((!propFilter || propFilter(prop, sourceObj, destObj)) && !merged[prop]) {
+        destObj[prop] = sourceObj[prop];
+        merged[prop] = true;
+      }
+    }
+    sourceObj = filter !== false && getPrototypeOf(sourceObj);
+  } while (sourceObj && (!filter || filter(sourceObj, destObj)) && sourceObj !== Object.prototype);
+
+  return destObj;
+};
+
+/**
+ * Determines whether a string ends with the characters of a specified string
+ *
+ * @param {String} str
+ * @param {String} searchString
+ * @param {Number} [position= 0]
+ *
+ * @returns {boolean}
+ */
+const endsWith = (str, searchString, position) => {
+  str = String(str);
+  if (position === undefined || position > str.length) {
+    position = str.length;
+  }
+  position -= searchString.length;
+  const lastIndex = str.indexOf(searchString, position);
+  return lastIndex !== -1 && lastIndex === position;
+};
+
+
+/**
+ * Returns new array from array like object or null if failed
+ *
+ * @param {*} [thing]
+ *
+ * @returns {?Array}
+ */
+const toArray = (thing) => {
+  if (!thing) return null;
+  if (isArray(thing)) return thing;
+  let i = thing.length;
+  if (!isNumber(i)) return null;
+  const arr = new Array(i);
+  while (i-- > 0) {
+    arr[i] = thing[i];
+  }
+  return arr;
+};
+
+/**
+ * Checking if the Uint8Array exists and if it does, it returns a function that checks if the
+ * thing passed in is an instance of Uint8Array
+ *
+ * @param {TypedArray}
+ *
+ * @returns {Array}
+ */
+// eslint-disable-next-line func-names
+const isTypedArray = (TypedArray => {
+  // eslint-disable-next-line func-names
+  return thing => {
+    return TypedArray && thing instanceof TypedArray;
+  };
+})(typeof Uint8Array !== 'undefined' && getPrototypeOf(Uint8Array));
+
+/**
+ * For each entry in the object, call the function with the key and value.
+ *
+ * @param {Object<any, any>} obj - The object to iterate over.
+ * @param {Function} fn - The function to call for each entry.
+ *
+ * @returns {void}
+ */
+const forEachEntry = (obj, fn) => {
+  const generator = obj && obj[Symbol.iterator];
+
+  const iterator = generator.call(obj);
+
+  let result;
+
+  while ((result = iterator.next()) && !result.done) {
+    const pair = result.value;
+    fn.call(obj, pair[0], pair[1]);
+  }
+};
+
+/**
+ * It takes a regular expression and a string, and returns an array of all the matches
+ *
+ * @param {string} regExp - The regular expression to match against.
+ * @param {string} str - The string to search.
+ *
+ * @returns {Array<boolean>}
+ */
+const matchAll = (regExp, str) => {
+  let matches;
+  const arr = [];
+
+  while ((matches = regExp.exec(str)) !== null) {
+    arr.push(matches);
+  }
+
+  return arr;
+};
+
+/* Checking if the kindOfTest function returns true when passed an HTMLFormElement. */
+const isHTMLForm = kindOfTest('HTMLFormElement');
+
+const toCamelCase = str => {
+  return str.toLowerCase().replace(/[-_\s]([a-z\d])(\w*)/g,
+    function replacer(m, p1, p2) {
+      return p1.toUpperCase() + p2;
+    }
+  );
+};
+
+/* Creating a function that will check if an object has a property. */
+const hasOwnProperty = (({hasOwnProperty}) => (obj, prop) => hasOwnProperty.call(obj, prop))(Object.prototype);
+
+/**
+ * Determine if a value is a RegExp object
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a RegExp object, otherwise false
+ */
+const isRegExp = kindOfTest('RegExp');
+
+const reduceDescriptors = (obj, reducer) => {
+  const descriptors = Object.getOwnPropertyDescriptors(obj);
+  const reducedDescriptors = {};
+
+  forEach(descriptors, (descriptor, name) => {
+    let ret;
+    if ((ret = reducer(descriptor, name, obj)) !== false) {
+      reducedDescriptors[name] = ret || descriptor;
+    }
+  });
+
+  Object.defineProperties(obj, reducedDescriptors);
+};
+
+/**
+ * Makes all methods read-only
+ * @param {Object} obj
+ */
+
+const freezeMethods = (obj) => {
+  reduceDescriptors(obj, (descriptor, name) => {
+    // skip restricted props in strict mode
+    if (isFunction(obj) && ['arguments', 'caller', 'callee'].indexOf(name) !== -1) {
+      return false;
+    }
+
+    const value = obj[name];
+
+    if (!isFunction(value)) return;
+
+    descriptor.enumerable = false;
+
+    if ('writable' in descriptor) {
+      descriptor.writable = false;
+      return;
+    }
+
+    if (!descriptor.set) {
+      descriptor.set = () => {
+        throw Error('Can not rewrite read-only method \'' + name + '\'');
+      };
+    }
+  });
+};
+
+const toObjectSet = (arrayOrString, delimiter) => {
+  const obj = {};
+
+  const define = (arr) => {
+    arr.forEach(value => {
+      obj[value] = true;
+    });
+  };
+
+  isArray(arrayOrString) ? define(arrayOrString) : define(String(arrayOrString).split(delimiter));
+
+  return obj;
+};
+
+const noop = () => {};
+
+const toFiniteNumber = (value, defaultValue) => {
+  return value != null && Number.isFinite(value = +value) ? value : defaultValue;
+};
+
+const ALPHA = 'abcdefghijklmnopqrstuvwxyz';
+
+const DIGIT = '0123456789';
+
+const ALPHABET = {
+  DIGIT,
+  ALPHA,
+  ALPHA_DIGIT: ALPHA + ALPHA.toUpperCase() + DIGIT
+};
+
+const generateString = (size = 16, alphabet = ALPHABET.ALPHA_DIGIT) => {
+  let str = '';
+  const {length} = alphabet;
+  while (size--) {
+    str += alphabet[Math.random() * length|0];
+  }
+
+  return str;
+};
+
+/**
+ * If the thing is a FormData object, return true, otherwise return false.
+ *
+ * @param {unknown} thing - The thing to check.
+ *
+ * @returns {boolean}
+ */
+function isSpecCompliantForm(thing) {
+  return !!(thing && isFunction(thing.append) && thing[Symbol.toStringTag] === 'FormData' && thing[Symbol.iterator]);
+}
+
+const toJSONObject = (obj) => {
+  const stack = new Array(10);
+
+  const visit = (source, i) => {
+
+    if (isObject(source)) {
+      if (stack.indexOf(source) >= 0) {
+        return;
+      }
+
+      if(!('toJSON' in source)) {
+        stack[i] = source;
+        const target = isArray(source) ? [] : {};
+
+        forEach(source, (value, key) => {
+          const reducedValue = visit(value, i + 1);
+          !isUndefined(reducedValue) && (target[key] = reducedValue);
+        });
+
+        stack[i] = undefined;
+
+        return target;
+      }
+    }
+
+    return source;
+  };
+
+  return visit(obj, 0);
+};
+
+const isAsyncFn = kindOfTest('AsyncFunction');
+
+const isThenable = (thing) =>
+  thing && (isObject(thing) || isFunction(thing)) && isFunction(thing.then) && isFunction(thing.catch);
+
+// original code
+// https://github.com/DigitalBrainJS/AxiosPromise/blob/16deab13710ec09779922131f3fa5954320f83ab/lib/utils.js#L11-L34
+
+const _setImmediate = ((setImmediateSupported, postMessageSupported) => {
+  if (setImmediateSupported) {
+    return setImmediate;
+  }
+
+  return postMessageSupported ? ((token, callbacks) => {
+    _global.addEventListener("message", ({source, data}) => {
+      if (source === _global && data === token) {
+        callbacks.length && callbacks.shift()();
+      }
+    }, false);
+
+    return (cb) => {
+      callbacks.push(cb);
+      _global.postMessage(token, "*");
+    }
+  })(`axios@${Math.random()}`, []) : (cb) => setTimeout(cb);
+})(
+  typeof setImmediate === 'function',
+  isFunction(_global.postMessage)
+);
+
+const asap = typeof queueMicrotask !== 'undefined' ?
+  queueMicrotask.bind(_global) : ( typeof process !== 'undefined' && process.nextTick || _setImmediate);
+
+// *********************
+
+const utils$1 = {
+  isArray,
+  isArrayBuffer,
+  isBuffer,
+  isFormData,
+  isArrayBufferView,
+  isString,
+  isNumber,
+  isBoolean,
+  isObject,
+  isPlainObject,
+  isReadableStream,
+  isRequest,
+  isResponse,
+  isHeaders,
+  isUndefined,
+  isDate,
+  isFile,
+  isBlob,
+  isRegExp,
+  isFunction,
+  isStream,
+  isURLSearchParams,
+  isTypedArray,
+  isFileList,
+  forEach,
+  merge,
+  extend,
+  trim,
+  stripBOM,
+  inherits,
+  toFlatObject,
+  kindOf,
+  kindOfTest,
+  endsWith,
+  toArray,
+  forEachEntry,
+  matchAll,
+  isHTMLForm,
+  hasOwnProperty,
+  hasOwnProp: hasOwnProperty, // an alias to avoid ESLint no-prototype-builtins detection
+  reduceDescriptors,
+  freezeMethods,
+  toObjectSet,
+  toCamelCase,
+  noop,
+  toFiniteNumber,
+  findKey,
+  global: _global,
+  isContextDefined,
+  ALPHABET,
+  generateString,
+  isSpecCompliantForm,
+  toJSONObject,
+  isAsyncFn,
+  isThenable,
+  setImmediate: _setImmediate,
+  asap
+};
+
+/**
+ * Create an Error with the specified message, config, error code, request and response.
+ *
+ * @param {string} message The error message.
+ * @param {string} [code] The error code (for example, 'ECONNABORTED').
+ * @param {Object} [config] The config.
+ * @param {Object} [request] The request.
+ * @param {Object} [response] The response.
+ *
+ * @returns {Error} The created error.
+ */
+function AxiosError$1(message, code, config, request, response) {
+  Error.call(this);
+
+  if (Error.captureStackTrace) {
+    Error.captureStackTrace(this, this.constructor);
+  } else {
+    this.stack = (new Error()).stack;
+  }
+
+  this.message = message;
+  this.name = 'AxiosError';
+  code && (this.code = code);
+  config && (this.config = config);
+  request && (this.request = request);
+  if (response) {
+    this.response = response;
+    this.status = response.status ? response.status : null;
+  }
+}
+
+utils$1.inherits(AxiosError$1, Error, {
+  toJSON: function toJSON() {
+    return {
+      // Standard
+      message: this.message,
+      name: this.name,
+      // Microsoft
+      description: this.description,
+      number: this.number,
+      // Mozilla
+      fileName: this.fileName,
+      lineNumber: this.lineNumber,
+      columnNumber: this.columnNumber,
+      stack: this.stack,
+      // Axios
+      config: utils$1.toJSONObject(this.config),
+      code: this.code,
+      status: this.status
+    };
+  }
+});
+
+const prototype$1 = AxiosError$1.prototype;
+const descriptors = {};
+
+[
+  'ERR_BAD_OPTION_VALUE',
+  'ERR_BAD_OPTION',
+  'ECONNABORTED',
+  'ETIMEDOUT',
+  'ERR_NETWORK',
+  'ERR_FR_TOO_MANY_REDIRECTS',
+  'ERR_DEPRECATED',
+  'ERR_BAD_RESPONSE',
+  'ERR_BAD_REQUEST',
+  'ERR_CANCELED',
+  'ERR_NOT_SUPPORT',
+  'ERR_INVALID_URL'
+// eslint-disable-next-line func-names
+].forEach(code => {
+  descriptors[code] = {value: code};
+});
+
+Object.defineProperties(AxiosError$1, descriptors);
+Object.defineProperty(prototype$1, 'isAxiosError', {value: true});
+
+// eslint-disable-next-line func-names
+AxiosError$1.from = (error, code, config, request, response, customProps) => {
+  const axiosError = Object.create(prototype$1);
+
+  utils$1.toFlatObject(error, axiosError, function filter(obj) {
+    return obj !== Error.prototype;
+  }, prop => {
+    return prop !== 'isAxiosError';
+  });
+
+  AxiosError$1.call(axiosError, error.message, code, config, request, response);
+
+  axiosError.cause = error;
+
+  axiosError.name = error.name;
+
+  customProps && Object.assign(axiosError, customProps);
+
+  return axiosError;
+};
+
+// eslint-disable-next-line strict
+const httpAdapter = null;
+
+/**
+ * Determines if the given thing is a array or js object.
+ *
+ * @param {string} thing - The object or array to be visited.
+ *
+ * @returns {boolean}
+ */
+function isVisitable(thing) {
+  return utils$1.isPlainObject(thing) || utils$1.isArray(thing);
+}
+
+/**
+ * It removes the brackets from the end of a string
+ *
+ * @param {string} key - The key of the parameter.
+ *
+ * @returns {string} the key without the brackets.
+ */
+function removeBrackets(key) {
+  return utils$1.endsWith(key, '[]') ? key.slice(0, -2) : key;
+}
+
+/**
+ * It takes a path, a key, and a boolean, and returns a string
+ *
+ * @param {string} path - The path to the current key.
+ * @param {string} key - The key of the current object being iterated over.
+ * @param {string} dots - If true, the key will be rendered with dots instead of brackets.
+ *
+ * @returns {string} The path to the current key.
+ */
+function renderKey(path, key, dots) {
+  if (!path) return key;
+  return path.concat(key).map(function each(token, i) {
+    // eslint-disable-next-line no-param-reassign
+    token = removeBrackets(token);
+    return !dots && i ? '[' + token + ']' : token;
+  }).join(dots ? '.' : '');
+}
+
+/**
+ * If the array is an array and none of its elements are visitable, then it's a flat array.
+ *
+ * @param {Array<any>} arr - The array to check
+ *
+ * @returns {boolean}
+ */
+function isFlatArray(arr) {
+  return utils$1.isArray(arr) && !arr.some(isVisitable);
+}
+
+const predicates = utils$1.toFlatObject(utils$1, {}, null, function filter(prop) {
+  return /^is[A-Z]/.test(prop);
+});
+
+/**
+ * Convert a data object to FormData
+ *
+ * @param {Object} obj
+ * @param {?Object} [formData]
+ * @param {?Object} [options]
+ * @param {Function} [options.visitor]
+ * @param {Boolean} [options.metaTokens = true]
+ * @param {Boolean} [options.dots = false]
+ * @param {?Boolean} [options.indexes = false]
+ *
+ * @returns {Object}
+ **/
+
+/**
+ * It converts an object into a FormData object
+ *
+ * @param {Object<any, any>} obj - The object to convert to form data.
+ * @param {string} formData - The FormData object to append to.
+ * @param {Object<string, any>} options
+ *
+ * @returns
+ */
+function toFormData$1(obj, formData, options) {
+  if (!utils$1.isObject(obj)) {
+    throw new TypeError('target must be an object');
+  }
+
+  // eslint-disable-next-line no-param-reassign
+  formData = formData || new (FormData)();
+
+  // eslint-disable-next-line no-param-reassign
+  options = utils$1.toFlatObject(options, {
+    metaTokens: true,
+    dots: false,
+    indexes: false
+  }, false, function defined(option, source) {
+    // eslint-disable-next-line no-eq-null,eqeqeq
+    return !utils$1.isUndefined(source[option]);
+  });
+
+  const metaTokens = options.metaTokens;
+  // eslint-disable-next-line no-use-before-define
+  const visitor = options.visitor || defaultVisitor;
+  const dots = options.dots;
+  const indexes = options.indexes;
+  const _Blob = options.Blob || typeof Blob !== 'undefined' && Blob;
+  const useBlob = _Blob && utils$1.isSpecCompliantForm(formData);
+
+  if (!utils$1.isFunction(visitor)) {
+    throw new TypeError('visitor must be a function');
+  }
+
+  function convertValue(value) {
+    if (value === null) return '';
+
+    if (utils$1.isDate(value)) {
+      return value.toISOString();
+    }
+
+    if (!useBlob && utils$1.isBlob(value)) {
+      throw new AxiosError$1('Blob is not supported. Use a Buffer instead.');
+    }
+
+    if (utils$1.isArrayBuffer(value) || utils$1.isTypedArray(value)) {
+      return useBlob && typeof Blob === 'function' ? new Blob([value]) : Buffer.from(value);
+    }
+
+    return value;
+  }
+
+  /**
+   * Default visitor.
+   *
+   * @param {*} value
+   * @param {String|Number} key
+   * @param {Array<String|Number>} path
+   * @this {FormData}
+   *
+   * @returns {boolean} return true to visit the each prop of the value recursively
+   */
+  function defaultVisitor(value, key, path) {
+    let arr = value;
+
+    if (value && !path && typeof value === 'object') {
+      if (utils$1.endsWith(key, '{}')) {
+        // eslint-disable-next-line no-param-reassign
+        key = metaTokens ? key : key.slice(0, -2);
+        // eslint-disable-next-line no-param-reassign
+        value = JSON.stringify(value);
+      } else if (
+        (utils$1.isArray(value) && isFlatArray(value)) ||
+        ((utils$1.isFileList(value) || utils$1.endsWith(key, '[]')) && (arr = utils$1.toArray(value))
+        )) {
+        // eslint-disable-next-line no-param-reassign
+        key = removeBrackets(key);
+
+        arr.forEach(function each(el, index) {
+          !(utils$1.isUndefined(el) || el === null) && formData.append(
+            // eslint-disable-next-line no-nested-ternary
+            indexes === true ? renderKey([key], index, dots) : (indexes === null ? key : key + '[]'),
+            convertValue(el)
+          );
+        });
+        return false;
+      }
+    }
+
+    if (isVisitable(value)) {
+      return true;
+    }
+
+    formData.append(renderKey(path, key, dots), convertValue(value));
+
+    return false;
+  }
+
+  const stack = [];
+
+  const exposedHelpers = Object.assign(predicates, {
+    defaultVisitor,
+    convertValue,
+    isVisitable
+  });
+
+  function build(value, path) {
+    if (utils$1.isUndefined(value)) return;
+
+    if (stack.indexOf(value) !== -1) {
+      throw Error('Circular reference detected in ' + path.join('.'));
+    }
+
+    stack.push(value);
+
+    utils$1.forEach(value, function each(el, key) {
+      const result = !(utils$1.isUndefined(el) || el === null) && visitor.call(
+        formData, el, utils$1.isString(key) ? key.trim() : key, path, exposedHelpers
+      );
+
+      if (result === true) {
+        build(el, path ? path.concat(key) : [key]);
+      }
+    });
+
+    stack.pop();
+  }
+
+  if (!utils$1.isObject(obj)) {
+    throw new TypeError('data must be an object');
+  }
+
+  build(obj);
+
+  return formData;
+}
+
+/**
+ * It encodes a string by replacing all characters that are not in the unreserved set with
+ * their percent-encoded equivalents
+ *
+ * @param {string} str - The string to encode.
+ *
+ * @returns {string} The encoded string.
+ */
+function encode$1(str) {
+  const charMap = {
+    '!': '%21',
+    "'": '%27',
+    '(': '%28',
+    ')': '%29',
+    '~': '%7E',
+    '%20': '+',
+    '%00': '\x00'
+  };
+  return encodeURIComponent(str).replace(/[!'()~]|%20|%00/g, function replacer(match) {
+    return charMap[match];
+  });
+}
+
+/**
+ * It takes a params object and converts it to a FormData object
+ *
+ * @param {Object<string, any>} params - The parameters to be converted to a FormData object.
+ * @param {Object<string, any>} options - The options object passed to the Axios constructor.
+ *
+ * @returns {void}
+ */
+function AxiosURLSearchParams(params, options) {
+  this._pairs = [];
+
+  params && toFormData$1(params, this, options);
+}
+
+const prototype = AxiosURLSearchParams.prototype;
+
+prototype.append = function append(name, value) {
+  this._pairs.push([name, value]);
+};
+
+prototype.toString = function toString(encoder) {
+  const _encode = encoder ? function(value) {
+    return encoder.call(this, value, encode$1);
+  } : encode$1;
+
+  return this._pairs.map(function each(pair) {
+    return _encode(pair[0]) + '=' + _encode(pair[1]);
+  }, '').join('&');
+};
+
+/**
+ * It replaces all instances of the characters `:`, `$`, `,`, `+`, `[`, and `]` with their
+ * URI encoded counterparts
+ *
+ * @param {string} val The value to be encoded.
+ *
+ * @returns {string} The encoded value.
+ */
+function encode(val) {
+  return encodeURIComponent(val).
+    replace(/%3A/gi, ':').
+    replace(/%24/g, '$').
+    replace(/%2C/gi, ',').
+    replace(/%20/g, '+').
+    replace(/%5B/gi, '[').
+    replace(/%5D/gi, ']');
+}
+
+/**
+ * Build a URL by appending params to the end
+ *
+ * @param {string} url The base of the url (e.g., http://www.google.com)
+ * @param {object} [params] The params to be appended
+ * @param {?(object|Function)} options
+ *
+ * @returns {string} The formatted url
+ */
+function buildURL(url, params, options) {
+  /*eslint no-param-reassign:0*/
+  if (!params) {
+    return url;
+  }
+  
+  const _encode = options && options.encode || encode;
+
+  if (utils$1.isFunction(options)) {
+    options = {
+      serialize: options
+    };
+  } 
+
+  const serializeFn = options && options.serialize;
+
+  let serializedParams;
+
+  if (serializeFn) {
+    serializedParams = serializeFn(params, options);
+  } else {
+    serializedParams = utils$1.isURLSearchParams(params) ?
+      params.toString() :
+      new AxiosURLSearchParams(params, options).toString(_encode);
+  }
+
+  if (serializedParams) {
+    const hashmarkIndex = url.indexOf("#");
+
+    if (hashmarkIndex !== -1) {
+      url = url.slice(0, hashmarkIndex);
+    }
+    url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;
+  }
+
+  return url;
+}
+
+class InterceptorManager {
+  constructor() {
+    this.handlers = [];
+  }
+
+  /**
+   * Add a new interceptor to the stack
+   *
+   * @param {Function} fulfilled The function to handle `then` for a `Promise`
+   * @param {Function} rejected The function to handle `reject` for a `Promise`
+   *
+   * @return {Number} An ID used to remove interceptor later
+   */
+  use(fulfilled, rejected, options) {
+    this.handlers.push({
+      fulfilled,
+      rejected,
+      synchronous: options ? options.synchronous : false,
+      runWhen: options ? options.runWhen : null
+    });
+    return this.handlers.length - 1;
+  }
+
+  /**
+   * Remove an interceptor from the stack
+   *
+   * @param {Number} id The ID that was returned by `use`
+   *
+   * @returns {Boolean} `true` if the interceptor was removed, `false` otherwise
+   */
+  eject(id) {
+    if (this.handlers[id]) {
+      this.handlers[id] = null;
+    }
+  }
+
+  /**
+   * Clear all interceptors from the stack
+   *
+   * @returns {void}
+   */
+  clear() {
+    if (this.handlers) {
+      this.handlers = [];
+    }
+  }
+
+  /**
+   * Iterate over all the registered interceptors
+   *
+   * This method is particularly useful for skipping over any
+   * interceptors that may have become `null` calling `eject`.
+   *
+   * @param {Function} fn The function to call for each interceptor
+   *
+   * @returns {void}
+   */
+  forEach(fn) {
+    utils$1.forEach(this.handlers, function forEachHandler(h) {
+      if (h !== null) {
+        fn(h);
+      }
+    });
+  }
+}
+
+const InterceptorManager$1 = InterceptorManager;
+
+const transitionalDefaults = {
+  silentJSONParsing: true,
+  forcedJSONParsing: true,
+  clarifyTimeoutError: false
+};
+
+const URLSearchParams$1 = typeof URLSearchParams !== 'undefined' ? URLSearchParams : AxiosURLSearchParams;
+
+const FormData$1 = typeof FormData !== 'undefined' ? FormData : null;
+
+const Blob$1 = typeof Blob !== 'undefined' ? Blob : null;
+
+const platform$1 = {
+  isBrowser: true,
+  classes: {
+    URLSearchParams: URLSearchParams$1,
+    FormData: FormData$1,
+    Blob: Blob$1
+  },
+  protocols: ['http', 'https', 'file', 'blob', 'url', 'data']
+};
+
+const hasBrowserEnv = typeof window !== 'undefined' && typeof document !== 'undefined';
+
+const _navigator = typeof navigator === 'object' && navigator || undefined;
+
+/**
+ * Determine if we're running in a standard browser environment
+ *
+ * This allows axios to run in a web worker, and react-native.
+ * Both environments support XMLHttpRequest, but not fully standard globals.
+ *
+ * web workers:
+ *  typeof window -> undefined
+ *  typeof document -> undefined
+ *
+ * react-native:
+ *  navigator.product -> 'ReactNative'
+ * nativescript
+ *  navigator.product -> 'NativeScript' or 'NS'
+ *
+ * @returns {boolean}
+ */
+const hasStandardBrowserEnv = hasBrowserEnv &&
+  (!_navigator || ['ReactNative', 'NativeScript', 'NS'].indexOf(_navigator.product) < 0);
+
+/**
+ * Determine if we're running in a standard browser webWorker environment
+ *
+ * Although the `isStandardBrowserEnv` method indicates that
+ * `allows axios to run in a web worker`, the WebWorker will still be
+ * filtered out due to its judgment standard
+ * `typeof window !== 'undefined' && typeof document !== 'undefined'`.
+ * This leads to a problem when axios post `FormData` in webWorker
+ */
+const hasStandardBrowserWebWorkerEnv = (() => {
+  return (
+    typeof WorkerGlobalScope !== 'undefined' &&
+    // eslint-disable-next-line no-undef
+    self instanceof WorkerGlobalScope &&
+    typeof self.importScripts === 'function'
+  );
+})();
+
+const origin = hasBrowserEnv && window.location.href || 'http://localhost';
+
+const utils = /*#__PURE__*/Object.freeze({
+  __proto__: null,
+  hasBrowserEnv: hasBrowserEnv,
+  hasStandardBrowserWebWorkerEnv: hasStandardBrowserWebWorkerEnv,
+  hasStandardBrowserEnv: hasStandardBrowserEnv,
+  navigator: _navigator,
+  origin: origin
+});
+
+const platform = {
+  ...utils,
+  ...platform$1
+};
+
+function toURLEncodedForm(data, options) {
+  return toFormData$1(data, new platform.classes.URLSearchParams(), Object.assign({
+    visitor: function(value, key, path, helpers) {
+      if (platform.isNode && utils$1.isBuffer(value)) {
+        this.append(key, value.toString('base64'));
+        return false;
+      }
+
+      return helpers.defaultVisitor.apply(this, arguments);
+    }
+  }, options));
+}
+
+/**
+ * It takes a string like `foo[x][y][z]` and returns an array like `['foo', 'x', 'y', 'z']
+ *
+ * @param {string} name - The name of the property to get.
+ *
+ * @returns An array of strings.
+ */
+function parsePropPath(name) {
+  // foo[x][y][z]
+  // foo.x.y.z
+  // foo-x-y-z
+  // foo x y z
+  return utils$1.matchAll(/\w+|\[(\w*)]/g, name).map(match => {
+    return match[0] === '[]' ? '' : match[1] || match[0];
+  });
+}
+
+/**
+ * Convert an array to an object.
+ *
+ * @param {Array<any>} arr - The array to convert to an object.
+ *
+ * @returns An object with the same keys and values as the array.
+ */
+function arrayToObject(arr) {
+  const obj = {};
+  const keys = Object.keys(arr);
+  let i;
+  const len = keys.length;
+  let key;
+  for (i = 0; i < len; i++) {
+    key = keys[i];
+    obj[key] = arr[key];
+  }
+  return obj;
+}
+
+/**
+ * It takes a FormData object and returns a JavaScript object
+ *
+ * @param {string} formData The FormData object to convert to JSON.
+ *
+ * @returns {Object<string, any> | null} The converted object.
+ */
+function formDataToJSON(formData) {
+  function buildPath(path, value, target, index) {
+    let name = path[index++];
+
+    if (name === '__proto__') return true;
+
+    const isNumericKey = Number.isFinite(+name);
+    const isLast = index >= path.length;
+    name = !name && utils$1.isArray(target) ? target.length : name;
+
+    if (isLast) {
+      if (utils$1.hasOwnProp(target, name)) {
+        target[name] = [target[name], value];
+      } else {
+        target[name] = value;
+      }
+
+      return !isNumericKey;
+    }
+
+    if (!target[name] || !utils$1.isObject(target[name])) {
+      target[name] = [];
+    }
+
+    const result = buildPath(path, value, target[name], index);
+
+    if (result && utils$1.isArray(target[name])) {
+      target[name] = arrayToObject(target[name]);
+    }
+
+    return !isNumericKey;
+  }
+
+  if (utils$1.isFormData(formData) && utils$1.isFunction(formData.entries)) {
+    const obj = {};
+
+    utils$1.forEachEntry(formData, (name, value) => {
+      buildPath(parsePropPath(name), value, obj, 0);
+    });
+
+    return obj;
+  }
+
+  return null;
+}
+
+/**
+ * It takes a string, tries to parse it, and if it fails, it returns the stringified version
+ * of the input
+ *
+ * @param {any} rawValue - The value to be stringified.
+ * @param {Function} parser - A function that parses a string into a JavaScript object.
+ * @param {Function} encoder - A function that takes a value and returns a string.
+ *
+ * @returns {string} A stringified version of the rawValue.
+ */
+function stringifySafely(rawValue, parser, encoder) {
+  if (utils$1.isString(rawValue)) {
+    try {
+      (parser || JSON.parse)(rawValue);
+      return utils$1.trim(rawValue);
+    } catch (e) {
+      if (e.name !== 'SyntaxError') {
+        throw e;
+      }
+    }
+  }
+
+  return (encoder || JSON.stringify)(rawValue);
+}
+
+const defaults = {
+
+  transitional: transitionalDefaults,
+
+  adapter: ['xhr', 'http', 'fetch'],
+
+  transformRequest: [function transformRequest(data, headers) {
+    const contentType = headers.getContentType() || '';
+    const hasJSONContentType = contentType.indexOf('application/json') > -1;
+    const isObjectPayload = utils$1.isObject(data);
+
+    if (isObjectPayload && utils$1.isHTMLForm(data)) {
+      data = new FormData(data);
+    }
+
+    const isFormData = utils$1.isFormData(data);
+
+    if (isFormData) {
+      return hasJSONContentType ? JSON.stringify(formDataToJSON(data)) : data;
+    }
+
+    if (utils$1.isArrayBuffer(data) ||
+      utils$1.isBuffer(data) ||
+      utils$1.isStream(data) ||
+      utils$1.isFile(data) ||
+      utils$1.isBlob(data) ||
+      utils$1.isReadableStream(data)
+    ) {
+      return data;
+    }
+    if (utils$1.isArrayBufferView(data)) {
+      return data.buffer;
+    }
+    if (utils$1.isURLSearchParams(data)) {
+      headers.setContentType('application/x-www-form-urlencoded;charset=utf-8', false);
+      return data.toString();
+    }
+
+    let isFileList;
+
+    if (isObjectPayload) {
+      if (contentType.indexOf('application/x-www-form-urlencoded') > -1) {
+        return toURLEncodedForm(data, this.formSerializer).toString();
+      }
+
+      if ((isFileList = utils$1.isFileList(data)) || contentType.indexOf('multipart/form-data') > -1) {
+        const _FormData = this.env && this.env.FormData;
+
+        return toFormData$1(
+          isFileList ? {'files[]': data} : data,
+          _FormData && new _FormData(),
+          this.formSerializer
+        );
+      }
+    }
+
+    if (isObjectPayload || hasJSONContentType ) {
+      headers.setContentType('application/json', false);
+      return stringifySafely(data);
+    }
+
+    return data;
+  }],
+
+  transformResponse: [function transformResponse(data) {
+    const transitional = this.transitional || defaults.transitional;
+    const forcedJSONParsing = transitional && transitional.forcedJSONParsing;
+    const JSONRequested = this.responseType === 'json';
+
+    if (utils$1.isResponse(data) || utils$1.isReadableStream(data)) {
+      return data;
+    }
+
+    if (data && utils$1.isString(data) && ((forcedJSONParsing && !this.responseType) || JSONRequested)) {
+      const silentJSONParsing = transitional && transitional.silentJSONParsing;
+      const strictJSONParsing = !silentJSONParsing && JSONRequested;
+
+      try {
+        return JSON.parse(data);
+      } catch (e) {
+        if (strictJSONParsing) {
+          if (e.name === 'SyntaxError') {
+            throw AxiosError$1.from(e, AxiosError$1.ERR_BAD_RESPONSE, this, null, this.response);
+          }
+          throw e;
+        }
+      }
+    }
+
+    return data;
+  }],
+
+  /**
+   * A timeout in milliseconds to abort a request. If set to 0 (default) a
+   * timeout is not created.
+   */
+  timeout: 0,
+
+  xsrfCookieName: 'XSRF-TOKEN',
+  xsrfHeaderName: 'X-XSRF-TOKEN',
+
+  maxContentLength: -1,
+  maxBodyLength: -1,
+
+  env: {
+    FormData: platform.classes.FormData,
+    Blob: platform.classes.Blob
+  },
+
+  validateStatus: function validateStatus(status) {
+    return status >= 200 && status < 300;
+  },
+
+  headers: {
+    common: {
+      'Accept': 'application/json, text/plain, */*',
+      'Content-Type': undefined
+    }
+  }
+};
+
+utils$1.forEach(['delete', 'get', 'head', 'post', 'put', 'patch'], (method) => {
+  defaults.headers[method] = {};
+});
+
+const defaults$1 = defaults;
+
+// RawAxiosHeaders whose duplicates are ignored by node
+// c.f. https://nodejs.org/api/http.html#http_message_headers
+const ignoreDuplicateOf = utils$1.toObjectSet([
+  'age', 'authorization', 'content-length', 'content-type', 'etag',
+  'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since',
+  'last-modified', 'location', 'max-forwards', 'proxy-authorization',
+  'referer', 'retry-after', 'user-agent'
+]);
+
+/**
+ * Parse headers into an object
+ *
+ * ```
+ * Date: Wed, 27 Aug 2014 08:58:49 GMT
+ * Content-Type: application/json
+ * Connection: keep-alive
+ * Transfer-Encoding: chunked
+ * ```
+ *
+ * @param {String} rawHeaders Headers needing to be parsed
+ *
+ * @returns {Object} Headers parsed into an object
+ */
+const parseHeaders = rawHeaders => {
+  const parsed = {};
+  let key;
+  let val;
+  let i;
+
+  rawHeaders && rawHeaders.split('\n').forEach(function parser(line) {
+    i = line.indexOf(':');
+    key = line.substring(0, i).trim().toLowerCase();
+    val = line.substring(i + 1).trim();
+
+    if (!key || (parsed[key] && ignoreDuplicateOf[key])) {
+      return;
+    }
+
+    if (key === 'set-cookie') {
+      if (parsed[key]) {
+        parsed[key].push(val);
+      } else {
+        parsed[key] = [val];
+      }
+    } else {
+      parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;
+    }
+  });
+
+  return parsed;
+};
+
+const $internals = Symbol('internals');
+
+function normalizeHeader(header) {
+  return header && String(header).trim().toLowerCase();
+}
+
+function normalizeValue(value) {
+  if (value === false || value == null) {
+    return value;
+  }
+
+  return utils$1.isArray(value) ? value.map(normalizeValue) : String(value);
+}
+
+function parseTokens(str) {
+  const tokens = Object.create(null);
+  const tokensRE = /([^\s,;=]+)\s*(?:=\s*([^,;]+))?/g;
+  let match;
+
+  while ((match = tokensRE.exec(str))) {
+    tokens[match[1]] = match[2];
+  }
+
+  return tokens;
+}
+
+const isValidHeaderName = (str) => /^[-_a-zA-Z0-9^`|~,!#$%&'*+.]+$/.test(str.trim());
+
+function matchHeaderValue(context, value, header, filter, isHeaderNameFilter) {
+  if (utils$1.isFunction(filter)) {
+    return filter.call(this, value, header);
+  }
+
+  if (isHeaderNameFilter) {
+    value = header;
+  }
+
+  if (!utils$1.isString(value)) return;
+
+  if (utils$1.isString(filter)) {
+    return value.indexOf(filter) !== -1;
+  }
+
+  if (utils$1.isRegExp(filter)) {
+    return filter.test(value);
+  }
+}
+
+function formatHeader(header) {
+  return header.trim()
+    .toLowerCase().replace(/([a-z\d])(\w*)/g, (w, char, str) => {
+      return char.toUpperCase() + str;
+    });
+}
+
+function buildAccessors(obj, header) {
+  const accessorName = utils$1.toCamelCase(' ' + header);
+
+  ['get', 'set', 'has'].forEach(methodName => {
+    Object.defineProperty(obj, methodName + accessorName, {
+      value: function(arg1, arg2, arg3) {
+        return this[methodName].call(this, header, arg1, arg2, arg3);
+      },
+      configurable: true
+    });
+  });
+}
+
+class AxiosHeaders$1 {
+  constructor(headers) {
+    headers && this.set(headers);
+  }
+
+  set(header, valueOrRewrite, rewrite) {
+    const self = this;
+
+    function setHeader(_value, _header, _rewrite) {
+      const lHeader = normalizeHeader(_header);
+
+      if (!lHeader) {
+        throw new Error('header name must be a non-empty string');
+      }
+
+      const key = utils$1.findKey(self, lHeader);
+
+      if(!key || self[key] === undefined || _rewrite === true || (_rewrite === undefined && self[key] !== false)) {
+        self[key || _header] = normalizeValue(_value);
+      }
+    }
+
+    const setHeaders = (headers, _rewrite) =>
+      utils$1.forEach(headers, (_value, _header) => setHeader(_value, _header, _rewrite));
+
+    if (utils$1.isPlainObject(header) || header instanceof this.constructor) {
+      setHeaders(header, valueOrRewrite);
+    } else if(utils$1.isString(header) && (header = header.trim()) && !isValidHeaderName(header)) {
+      setHeaders(parseHeaders(header), valueOrRewrite);
+    } else if (utils$1.isHeaders(header)) {
+      for (const [key, value] of header.entries()) {
+        setHeader(value, key, rewrite);
+      }
+    } else {
+      header != null && setHeader(valueOrRewrite, header, rewrite);
+    }
+
+    return this;
+  }
+
+  get(header, parser) {
+    header = normalizeHeader(header);
+
+    if (header) {
+      const key = utils$1.findKey(this, header);
+
+      if (key) {
+        const value = this[key];
+
+        if (!parser) {
+          return value;
+        }
+
+        if (parser === true) {
+          return parseTokens(value);
+        }
+
+        if (utils$1.isFunction(parser)) {
+          return parser.call(this, value, key);
+        }
+
+        if (utils$1.isRegExp(parser)) {
+          return parser.exec(value);
+        }
+
+        throw new TypeError('parser must be boolean|regexp|function');
+      }
+    }
+  }
+
+  has(header, matcher) {
+    header = normalizeHeader(header);
+
+    if (header) {
+      const key = utils$1.findKey(this, header);
+
+      return !!(key && this[key] !== undefined && (!matcher || matchHeaderValue(this, this[key], key, matcher)));
+    }
+
+    return false;
+  }
+
+  delete(header, matcher) {
+    const self = this;
+    let deleted = false;
+
+    function deleteHeader(_header) {
+      _header = normalizeHeader(_header);
+
+      if (_header) {
+        const key = utils$1.findKey(self, _header);
+
+        if (key && (!matcher || matchHeaderValue(self, self[key], key, matcher))) {
+          delete self[key];
+
+          deleted = true;
+        }
+      }
+    }
+
+    if (utils$1.isArray(header)) {
+      header.forEach(deleteHeader);
+    } else {
+      deleteHeader(header);
+    }
+
+    return deleted;
+  }
+
+  clear(matcher) {
+    const keys = Object.keys(this);
+    let i = keys.length;
+    let deleted = false;
+
+    while (i--) {
+      const key = keys[i];
+      if(!matcher || matchHeaderValue(this, this[key], key, matcher, true)) {
+        delete this[key];
+        deleted = true;
+      }
+    }
+
+    return deleted;
+  }
+
+  normalize(format) {
+    const self = this;
+    const headers = {};
+
+    utils$1.forEach(this, (value, header) => {
+      const key = utils$1.findKey(headers, header);
+
+      if (key) {
+        self[key] = normalizeValue(value);
+        delete self[header];
+        return;
+      }
+
+      const normalized = format ? formatHeader(header) : String(header).trim();
+
+      if (normalized !== header) {
+        delete self[header];
+      }
+
+      self[normalized] = normalizeValue(value);
+
+      headers[normalized] = true;
+    });
+
+    return this;
+  }
+
+  concat(...targets) {
+    return this.constructor.concat(this, ...targets);
+  }
+
+  toJSON(asStrings) {
+    const obj = Object.create(null);
+
+    utils$1.forEach(this, (value, header) => {
+      value != null && value !== false && (obj[header] = asStrings && utils$1.isArray(value) ? value.join(', ') : value);
+    });
+
+    return obj;
+  }
+
+  [Symbol.iterator]() {
+    return Object.entries(this.toJSON())[Symbol.iterator]();
+  }
+
+  toString() {
+    return Object.entries(this.toJSON()).map(([header, value]) => header + ': ' + value).join('\n');
+  }
+
+  get [Symbol.toStringTag]() {
+    return 'AxiosHeaders';
+  }
+
+  static from(thing) {
+    return thing instanceof this ? thing : new this(thing);
+  }
+
+  static concat(first, ...targets) {
+    const computed = new this(first);
+
+    targets.forEach((target) => computed.set(target));
+
+    return computed;
+  }
+
+  static accessor(header) {
+    const internals = this[$internals] = (this[$internals] = {
+      accessors: {}
+    });
+
+    const accessors = internals.accessors;
+    const prototype = this.prototype;
+
+    function defineAccessor(_header) {
+      const lHeader = normalizeHeader(_header);
+
+      if (!accessors[lHeader]) {
+        buildAccessors(prototype, _header);
+        accessors[lHeader] = true;
+      }
+    }
+
+    utils$1.isArray(header) ? header.forEach(defineAccessor) : defineAccessor(header);
+
+    return this;
+  }
+}
+
+AxiosHeaders$1.accessor(['Content-Type', 'Content-Length', 'Accept', 'Accept-Encoding', 'User-Agent', 'Authorization']);
+
+// reserved names hotfix
+utils$1.reduceDescriptors(AxiosHeaders$1.prototype, ({value}, key) => {
+  let mapped = key[0].toUpperCase() + key.slice(1); // map `set` => `Set`
+  return {
+    get: () => value,
+    set(headerValue) {
+      this[mapped] = headerValue;
+    }
+  }
+});
+
+utils$1.freezeMethods(AxiosHeaders$1);
+
+const AxiosHeaders$2 = AxiosHeaders$1;
+
+/**
+ * Transform the data for a request or a response
+ *
+ * @param {Array|Function} fns A single function or Array of functions
+ * @param {?Object} response The response object
+ *
+ * @returns {*} The resulting transformed data
+ */
+function transformData(fns, response) {
+  const config = this || defaults$1;
+  const context = response || config;
+  const headers = AxiosHeaders$2.from(context.headers);
+  let data = context.data;
+
+  utils$1.forEach(fns, function transform(fn) {
+    data = fn.call(config, data, headers.normalize(), response ? response.status : undefined);
+  });
+
+  headers.normalize();
+
+  return data;
+}
+
+function isCancel$1(value) {
+  return !!(value && value.__CANCEL__);
+}
+
+/**
+ * A `CanceledError` is an object that is thrown when an operation is canceled.
+ *
+ * @param {string=} message The message.
+ * @param {Object=} config The config.
+ * @param {Object=} request The request.
+ *
+ * @returns {CanceledError} The created error.
+ */
+function CanceledError$1(message, config, request) {
+  // eslint-disable-next-line no-eq-null,eqeqeq
+  AxiosError$1.call(this, message == null ? 'canceled' : message, AxiosError$1.ERR_CANCELED, config, request);
+  this.name = 'CanceledError';
+}
+
+utils$1.inherits(CanceledError$1, AxiosError$1, {
+  __CANCEL__: true
+});
+
+/**
+ * Resolve or reject a Promise based on response status.
+ *
+ * @param {Function} resolve A function that resolves the promise.
+ * @param {Function} reject A function that rejects the promise.
+ * @param {object} response The response.
+ *
+ * @returns {object} The response.
+ */
+function settle(resolve, reject, response) {
+  const validateStatus = response.config.validateStatus;
+  if (!response.status || !validateStatus || validateStatus(response.status)) {
+    resolve(response);
+  } else {
+    reject(new AxiosError$1(
+      'Request failed with status code ' + response.status,
+      [AxiosError$1.ERR_BAD_REQUEST, AxiosError$1.ERR_BAD_RESPONSE][Math.floor(response.status / 100) - 4],
+      response.config,
+      response.request,
+      response
+    ));
+  }
+}
+
+function parseProtocol(url) {
+  const match = /^([-+\w]{1,25})(:?\/\/|:)/.exec(url);
+  return match && match[1] || '';
+}
+
+/**
+ * Calculate data maxRate
+ * @param {Number} [samplesCount= 10]
+ * @param {Number} [min= 1000]
+ * @returns {Function}
+ */
+function speedometer(samplesCount, min) {
+  samplesCount = samplesCount || 10;
+  const bytes = new Array(samplesCount);
+  const timestamps = new Array(samplesCount);
+  let head = 0;
+  let tail = 0;
+  let firstSampleTS;
+
+  min = min !== undefined ? min : 1000;
+
+  return function push(chunkLength) {
+    const now = Date.now();
+
+    const startedAt = timestamps[tail];
+
+    if (!firstSampleTS) {
+      firstSampleTS = now;
+    }
+
+    bytes[head] = chunkLength;
+    timestamps[head] = now;
+
+    let i = tail;
+    let bytesCount = 0;
+
+    while (i !== head) {
+      bytesCount += bytes[i++];
+      i = i % samplesCount;
+    }
+
+    head = (head + 1) % samplesCount;
+
+    if (head === tail) {
+      tail = (tail + 1) % samplesCount;
+    }
+
+    if (now - firstSampleTS < min) {
+      return;
+    }
+
+    const passed = startedAt && now - startedAt;
+
+    return passed ? Math.round(bytesCount * 1000 / passed) : undefined;
+  };
+}
+
+/**
+ * Throttle decorator
+ * @param {Function} fn
+ * @param {Number} freq
+ * @return {Function}
+ */
+function throttle(fn, freq) {
+  let timestamp = 0;
+  let threshold = 1000 / freq;
+  let lastArgs;
+  let timer;
+
+  const invoke = (args, now = Date.now()) => {
+    timestamp = now;
+    lastArgs = null;
+    if (timer) {
+      clearTimeout(timer);
+      timer = null;
+    }
+    fn.apply(null, args);
+  };
+
+  const throttled = (...args) => {
+    const now = Date.now();
+    const passed = now - timestamp;
+    if ( passed >= threshold) {
+      invoke(args, now);
+    } else {
+      lastArgs = args;
+      if (!timer) {
+        timer = setTimeout(() => {
+          timer = null;
+          invoke(lastArgs);
+        }, threshold - passed);
+      }
+    }
+  };
+
+  const flush = () => lastArgs && invoke(lastArgs);
+
+  return [throttled, flush];
+}
+
+const progressEventReducer = (listener, isDownloadStream, freq = 3) => {
+  let bytesNotified = 0;
+  const _speedometer = speedometer(50, 250);
+
+  return throttle(e => {
+    const loaded = e.loaded;
+    const total = e.lengthComputable ? e.total : undefined;
+    const progressBytes = loaded - bytesNotified;
+    const rate = _speedometer(progressBytes);
+    const inRange = loaded <= total;
+
+    bytesNotified = loaded;
+
+    const data = {
+      loaded,
+      total,
+      progress: total ? (loaded / total) : undefined,
+      bytes: progressBytes,
+      rate: rate ? rate : undefined,
+      estimated: rate && total && inRange ? (total - loaded) / rate : undefined,
+      event: e,
+      lengthComputable: total != null,
+      [isDownloadStream ? 'download' : 'upload']: true
+    };
+
+    listener(data);
+  }, freq);
+};
+
+const progressEventDecorator = (total, throttled) => {
+  const lengthComputable = total != null;
+
+  return [(loaded) => throttled[0]({
+    lengthComputable,
+    total,
+    loaded
+  }), throttled[1]];
+};
+
+const asyncDecorator = (fn) => (...args) => utils$1.asap(() => fn(...args));
+
+const isURLSameOrigin = platform.hasStandardBrowserEnv ? ((origin, isMSIE) => (url) => {
+  url = new URL(url, platform.origin);
+
+  return (
+    origin.protocol === url.protocol &&
+    origin.host === url.host &&
+    (isMSIE || origin.port === url.port)
+  );
+})(
+  new URL(platform.origin),
+  platform.navigator && /(msie|trident)/i.test(platform.navigator.userAgent)
+) : () => true;
+
+const cookies = platform.hasStandardBrowserEnv ?
+
+  // Standard browser envs support document.cookie
+  {
+    write(name, value, expires, path, domain, secure) {
+      const cookie = [name + '=' + encodeURIComponent(value)];
+
+      utils$1.isNumber(expires) && cookie.push('expires=' + new Date(expires).toGMTString());
+
+      utils$1.isString(path) && cookie.push('path=' + path);
+
+      utils$1.isString(domain) && cookie.push('domain=' + domain);
+
+      secure === true && cookie.push('secure');
+
+      document.cookie = cookie.join('; ');
+    },
+
+    read(name) {
+      const match = document.cookie.match(new RegExp('(^|;\\s*)(' + name + ')=([^;]*)'));
+      return (match ? decodeURIComponent(match[3]) : null);
+    },
+
+    remove(name) {
+      this.write(name, '', Date.now() - 86400000);
+    }
+  }
+
+  :
+
+  // Non-standard browser env (web workers, react-native) lack needed support.
+  {
+    write() {},
+    read() {
+      return null;
+    },
+    remove() {}
+  };
+
+/**
+ * Determines whether the specified URL is absolute
+ *
+ * @param {string} url The URL to test
+ *
+ * @returns {boolean} True if the specified URL is absolute, otherwise false
+ */
+function isAbsoluteURL(url) {
+  // A URL is considered absolute if it begins with "<scheme>://" or "//" (protocol-relative URL).
+  // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed
+  // by any combination of letters, digits, plus, period, or hyphen.
+  return /^([a-z][a-z\d+\-.]*:)?\/\//i.test(url);
+}
+
+/**
+ * Creates a new URL by combining the specified URLs
+ *
+ * @param {string} baseURL The base URL
+ * @param {string} relativeURL The relative URL
+ *
+ * @returns {string} The combined URL
+ */
+function combineURLs(baseURL, relativeURL) {
+  return relativeURL
+    ? baseURL.replace(/\/?\/$/, '') + '/' + relativeURL.replace(/^\/+/, '')
+    : baseURL;
+}
+
+/**
+ * Creates a new URL by combining the baseURL with the requestedURL,
+ * only when the requestedURL is not already an absolute URL.
+ * If the requestURL is absolute, this function returns the requestedURL untouched.
+ *
+ * @param {string} baseURL The base URL
+ * @param {string} requestedURL Absolute or relative URL to combine
+ *
+ * @returns {string} The combined full path
+ */
+function buildFullPath(baseURL, requestedURL) {
+  if (baseURL && !isAbsoluteURL(requestedURL)) {
+    return combineURLs(baseURL, requestedURL);
+  }
+  return requestedURL;
+}
+
+const headersToObject = (thing) => thing instanceof AxiosHeaders$2 ? { ...thing } : thing;
+
+/**
+ * Config-specific merge-function which creates a new config-object
+ * by merging two configuration objects together.
+ *
+ * @param {Object} config1
+ * @param {Object} config2
+ *
+ * @returns {Object} New object resulting from merging config2 to config1
+ */
+function mergeConfig$1(config1, config2) {
+  // eslint-disable-next-line no-param-reassign
+  config2 = config2 || {};
+  const config = {};
+
+  function getMergedValue(target, source, prop, caseless) {
+    if (utils$1.isPlainObject(target) && utils$1.isPlainObject(source)) {
+      return utils$1.merge.call({caseless}, target, source);
+    } else if (utils$1.isPlainObject(source)) {
+      return utils$1.merge({}, source);
+    } else if (utils$1.isArray(source)) {
+      return source.slice();
+    }
+    return source;
+  }
+
+  // eslint-disable-next-line consistent-return
+  function mergeDeepProperties(a, b, prop , caseless) {
+    if (!utils$1.isUndefined(b)) {
+      return getMergedValue(a, b, prop , caseless);
+    } else if (!utils$1.isUndefined(a)) {
+      return getMergedValue(undefined, a, prop , caseless);
+    }
+  }
+
+  // eslint-disable-next-line consistent-return
+  function valueFromConfig2(a, b) {
+    if (!utils$1.isUndefined(b)) {
+      return getMergedValue(undefined, b);
+    }
+  }
+
+  // eslint-disable-next-line consistent-return
+  function defaultToConfig2(a, b) {
+    if (!utils$1.isUndefined(b)) {
+      return getMergedValue(undefined, b);
+    } else if (!utils$1.isUndefined(a)) {
+      return getMergedValue(undefined, a);
+    }
+  }
+
+  // eslint-disable-next-line consistent-return
+  function mergeDirectKeys(a, b, prop) {
+    if (prop in config2) {
+      return getMergedValue(a, b);
+    } else if (prop in config1) {
+      return getMergedValue(undefined, a);
+    }
+  }
+
+  const mergeMap = {
+    url: valueFromConfig2,
+    method: valueFromConfig2,
+    data: valueFromConfig2,
+    baseURL: defaultToConfig2,
+    transformRequest: defaultToConfig2,
+    transformResponse: defaultToConfig2,
+    paramsSerializer: defaultToConfig2,
+    timeout: defaultToConfig2,
+    timeoutMessage: defaultToConfig2,
+    withCredentials: defaultToConfig2,
+    withXSRFToken: defaultToConfig2,
+    adapter: defaultToConfig2,
+    responseType: defaultToConfig2,
+    xsrfCookieName: defaultToConfig2,
+    xsrfHeaderName: defaultToConfig2,
+    onUploadProgress: defaultToConfig2,
+    onDownloadProgress: defaultToConfig2,
+    decompress: defaultToConfig2,
+    maxContentLength: defaultToConfig2,
+    maxBodyLength: defaultToConfig2,
+    beforeRedirect: defaultToConfig2,
+    transport: defaultToConfig2,
+    httpAgent: defaultToConfig2,
+    httpsAgent: defaultToConfig2,
+    cancelToken: defaultToConfig2,
+    socketPath: defaultToConfig2,
+    responseEncoding: defaultToConfig2,
+    validateStatus: mergeDirectKeys,
+    headers: (a, b , prop) => mergeDeepProperties(headersToObject(a), headersToObject(b),prop, true)
+  };
+
+  utils$1.forEach(Object.keys(Object.assign({}, config1, config2)), function computeConfigValue(prop) {
+    const merge = mergeMap[prop] || mergeDeepProperties;
+    const configValue = merge(config1[prop], config2[prop], prop);
+    (utils$1.isUndefined(configValue) && merge !== mergeDirectKeys) || (config[prop] = configValue);
+  });
+
+  return config;
+}
+
+const resolveConfig = (config) => {
+  const newConfig = mergeConfig$1({}, config);
+
+  let {data, withXSRFToken, xsrfHeaderName, xsrfCookieName, headers, auth} = newConfig;
+
+  newConfig.headers = headers = AxiosHeaders$2.from(headers);
+
+  newConfig.url = buildURL(buildFullPath(newConfig.baseURL, newConfig.url), config.params, config.paramsSerializer);
+
+  // HTTP basic authentication
+  if (auth) {
+    headers.set('Authorization', 'Basic ' +
+      btoa((auth.username || '') + ':' + (auth.password ? unescape(encodeURIComponent(auth.password)) : ''))
+    );
+  }
+
+  let contentType;
+
+  if (utils$1.isFormData(data)) {
+    if (platform.hasStandardBrowserEnv || platform.hasStandardBrowserWebWorkerEnv) {
+      headers.setContentType(undefined); // Let the browser set it
+    } else if ((contentType = headers.getContentType()) !== false) {
+      // fix semicolon duplication issue for ReactNative FormData implementation
+      const [type, ...tokens] = contentType ? contentType.split(';').map(token => token.trim()).filter(Boolean) : [];
+      headers.setContentType([type || 'multipart/form-data', ...tokens].join('; '));
+    }
+  }
+
+  // Add xsrf header
+  // This is only done if running in a standard browser environment.
+  // Specifically not if we're in a web worker, or react-native.
+
+  if (platform.hasStandardBrowserEnv) {
+    withXSRFToken && utils$1.isFunction(withXSRFToken) && (withXSRFToken = withXSRFToken(newConfig));
+
+    if (withXSRFToken || (withXSRFToken !== false && isURLSameOrigin(newConfig.url))) {
+      // Add xsrf header
+      const xsrfValue = xsrfHeaderName && xsrfCookieName && cookies.read(xsrfCookieName);
+
+      if (xsrfValue) {
+        headers.set(xsrfHeaderName, xsrfValue);
+      }
+    }
+  }
+
+  return newConfig;
+};
+
+const isXHRAdapterSupported = typeof XMLHttpRequest !== 'undefined';
+
+const xhrAdapter = isXHRAdapterSupported && function (config) {
+  return new Promise(function dispatchXhrRequest(resolve, reject) {
+    const _config = resolveConfig(config);
+    let requestData = _config.data;
+    const requestHeaders = AxiosHeaders$2.from(_config.headers).normalize();
+    let {responseType, onUploadProgress, onDownloadProgress} = _config;
+    let onCanceled;
+    let uploadThrottled, downloadThrottled;
+    let flushUpload, flushDownload;
+
+    function done() {
+      flushUpload && flushUpload(); // flush events
+      flushDownload && flushDownload(); // flush events
+
+      _config.cancelToken && _config.cancelToken.unsubscribe(onCanceled);
+
+      _config.signal && _config.signal.removeEventListener('abort', onCanceled);
+    }
+
+    let request = new XMLHttpRequest();
+
+    request.open(_config.method.toUpperCase(), _config.url, true);
+
+    // Set the request timeout in MS
+    request.timeout = _config.timeout;
+
+    function onloadend() {
+      if (!request) {
+        return;
+      }
+      // Prepare the response
+      const responseHeaders = AxiosHeaders$2.from(
+        'getAllResponseHeaders' in request && request.getAllResponseHeaders()
+      );
+      const responseData = !responseType || responseType === 'text' || responseType === 'json' ?
+        request.responseText : request.response;
+      const response = {
+        data: responseData,
+        status: request.status,
+        statusText: request.statusText,
+        headers: responseHeaders,
+        config,
+        request
+      };
+
+      settle(function _resolve(value) {
+        resolve(value);
+        done();
+      }, function _reject(err) {
+        reject(err);
+        done();
+      }, response);
+
+      // Clean up request
+      request = null;
+    }
+
+    if ('onloadend' in request) {
+      // Use onloadend if available
+      request.onloadend = onloadend;
+    } else {
+      // Listen for ready state to emulate onloadend
+      request.onreadystatechange = function handleLoad() {
+        if (!request || request.readyState !== 4) {
+          return;
+        }
+
+        // The request errored out and we didn't get a response, this will be
+        // handled by onerror instead
+        // With one exception: request that using file: protocol, most browsers
+        // will return status as 0 even though it's a successful request
+        if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {
+          return;
+        }
+        // readystate handler is calling before onerror or ontimeout handlers,
+        // so we should call onloadend on the next 'tick'
+        setTimeout(onloadend);
+      };
+    }
+
+    // Handle browser request cancellation (as opposed to a manual cancellation)
+    request.onabort = function handleAbort() {
+      if (!request) {
+        return;
+      }
+
+      reject(new AxiosError$1('Request aborted', AxiosError$1.ECONNABORTED, config, request));
+
+      // Clean up request
+      request = null;
+    };
+
+    // Handle low level network errors
+    request.onerror = function handleError() {
+      // Real errors are hidden from us by the browser
+      // onerror should only fire if it's a network error
+      reject(new AxiosError$1('Network Error', AxiosError$1.ERR_NETWORK, config, request));
+
+      // Clean up request
+      request = null;
+    };
+
+    // Handle timeout
+    request.ontimeout = function handleTimeout() {
+      let timeoutErrorMessage = _config.timeout ? 'timeout of ' + _config.timeout + 'ms exceeded' : 'timeout exceeded';
+      const transitional = _config.transitional || transitionalDefaults;
+      if (_config.timeoutErrorMessage) {
+        timeoutErrorMessage = _config.timeoutErrorMessage;
+      }
+      reject(new AxiosError$1(
+        timeoutErrorMessage,
+        transitional.clarifyTimeoutError ? AxiosError$1.ETIMEDOUT : AxiosError$1.ECONNABORTED,
+        config,
+        request));
+
+      // Clean up request
+      request = null;
+    };
+
+    // Remove Content-Type if data is undefined
+    requestData === undefined && requestHeaders.setContentType(null);
+
+    // Add headers to the request
+    if ('setRequestHeader' in request) {
+      utils$1.forEach(requestHeaders.toJSON(), function setRequestHeader(val, key) {
+        request.setRequestHeader(key, val);
+      });
+    }
+
+    // Add withCredentials to request if needed
+    if (!utils$1.isUndefined(_config.withCredentials)) {
+      request.withCredentials = !!_config.withCredentials;
+    }
+
+    // Add responseType to request if needed
+    if (responseType && responseType !== 'json') {
+      request.responseType = _config.responseType;
+    }
+
+    // Handle progress if needed
+    if (onDownloadProgress) {
+      ([downloadThrottled, flushDownload] = progressEventReducer(onDownloadProgress, true));
+      request.addEventListener('progress', downloadThrottled);
+    }
+
+    // Not all browsers support upload events
+    if (onUploadProgress && request.upload) {
+      ([uploadThrottled, flushUpload] = progressEventReducer(onUploadProgress));
+
+      request.upload.addEventListener('progress', uploadThrottled);
+
+      request.upload.addEventListener('loadend', flushUpload);
+    }
+
+    if (_config.cancelToken || _config.signal) {
+      // Handle cancellation
+      // eslint-disable-next-line func-names
+      onCanceled = cancel => {
+        if (!request) {
+          return;
+        }
+        reject(!cancel || cancel.type ? new CanceledError$1(null, config, request) : cancel);
+        request.abort();
+        request = null;
+      };
+
+      _config.cancelToken && _config.cancelToken.subscribe(onCanceled);
+      if (_config.signal) {
+        _config.signal.aborted ? onCanceled() : _config.signal.addEventListener('abort', onCanceled);
+      }
+    }
+
+    const protocol = parseProtocol(_config.url);
+
+    if (protocol && platform.protocols.indexOf(protocol) === -1) {
+      reject(new AxiosError$1('Unsupported protocol ' + protocol + ':', AxiosError$1.ERR_BAD_REQUEST, config));
+      return;
+    }
+
+
+    // Send the request
+    request.send(requestData || null);
+  });
+};
+
+const composeSignals = (signals, timeout) => {
+  const {length} = (signals = signals ? signals.filter(Boolean) : []);
+
+  if (timeout || length) {
+    let controller = new AbortController();
+
+    let aborted;
+
+    const onabort = function (reason) {
+      if (!aborted) {
+        aborted = true;
+        unsubscribe();
+        const err = reason instanceof Error ? reason : this.reason;
+        controller.abort(err instanceof AxiosError$1 ? err : new CanceledError$1(err instanceof Error ? err.message : err));
+      }
+    };
+
+    let timer = timeout && setTimeout(() => {
+      timer = null;
+      onabort(new AxiosError$1(`timeout ${timeout} of ms exceeded`, AxiosError$1.ETIMEDOUT));
+    }, timeout);
+
+    const unsubscribe = () => {
+      if (signals) {
+        timer && clearTimeout(timer);
+        timer = null;
+        signals.forEach(signal => {
+          signal.unsubscribe ? signal.unsubscribe(onabort) : signal.removeEventListener('abort', onabort);
+        });
+        signals = null;
+      }
+    };
+
+    signals.forEach((signal) => signal.addEventListener('abort', onabort));
+
+    const {signal} = controller;
+
+    signal.unsubscribe = () => utils$1.asap(unsubscribe);
+
+    return signal;
+  }
+};
+
+const composeSignals$1 = composeSignals;
+
+const streamChunk = function* (chunk, chunkSize) {
+  let len = chunk.byteLength;
+
+  if (!chunkSize || len < chunkSize) {
+    yield chunk;
+    return;
+  }
+
+  let pos = 0;
+  let end;
+
+  while (pos < len) {
+    end = pos + chunkSize;
+    yield chunk.slice(pos, end);
+    pos = end;
+  }
+};
+
+const readBytes = async function* (iterable, chunkSize) {
+  for await (const chunk of readStream(iterable)) {
+    yield* streamChunk(chunk, chunkSize);
+  }
+};
+
+const readStream = async function* (stream) {
+  if (stream[Symbol.asyncIterator]) {
+    yield* stream;
+    return;
+  }
+
+  const reader = stream.getReader();
+  try {
+    for (;;) {
+      const {done, value} = await reader.read();
+      if (done) {
+        break;
+      }
+      yield value;
+    }
+  } finally {
+    await reader.cancel();
+  }
+};
+
+const trackStream = (stream, chunkSize, onProgress, onFinish) => {
+  const iterator = readBytes(stream, chunkSize);
+
+  let bytes = 0;
+  let done;
+  let _onFinish = (e) => {
+    if (!done) {
+      done = true;
+      onFinish && onFinish(e);
+    }
+  };
+
+  return new ReadableStream({
+    async pull(controller) {
+      try {
+        const {done, value} = await iterator.next();
+
+        if (done) {
+         _onFinish();
+          controller.close();
+          return;
+        }
+
+        let len = value.byteLength;
+        if (onProgress) {
+          let loadedBytes = bytes += len;
+          onProgress(loadedBytes);
+        }
+        controller.enqueue(new Uint8Array(value));
+      } catch (err) {
+        _onFinish(err);
+        throw err;
+      }
+    },
+    cancel(reason) {
+      _onFinish(reason);
+      return iterator.return();
+    }
+  }, {
+    highWaterMark: 2
+  })
+};
+
+const isFetchSupported = typeof fetch === 'function' && typeof Request === 'function' && typeof Response === 'function';
+const isReadableStreamSupported = isFetchSupported && typeof ReadableStream === 'function';
+
+// used only inside the fetch adapter
+const encodeText = isFetchSupported && (typeof TextEncoder === 'function' ?
+    ((encoder) => (str) => encoder.encode(str))(new TextEncoder()) :
+    async (str) => new Uint8Array(await new Response(str).arrayBuffer())
+);
+
+const test = (fn, ...args) => {
+  try {
+    return !!fn(...args);
+  } catch (e) {
+    return false
+  }
+};
+
+const supportsRequestStream = isReadableStreamSupported && test(() => {
+  let duplexAccessed = false;
+
+  const hasContentType = new Request(platform.origin, {
+    body: new ReadableStream(),
+    method: 'POST',
+    get duplex() {
+      duplexAccessed = true;
+      return 'half';
+    },
+  }).headers.has('Content-Type');
+
+  return duplexAccessed && !hasContentType;
+});
+
+const DEFAULT_CHUNK_SIZE = 64 * 1024;
+
+const supportsResponseStream = isReadableStreamSupported &&
+  test(() => utils$1.isReadableStream(new Response('').body));
+
+
+const resolvers = {
+  stream: supportsResponseStream && ((res) => res.body)
+};
+
+isFetchSupported && (((res) => {
+  ['text', 'arrayBuffer', 'blob', 'formData', 'stream'].forEach(type => {
+    !resolvers[type] && (resolvers[type] = utils$1.isFunction(res[type]) ? (res) => res[type]() :
+      (_, config) => {
+        throw new AxiosError$1(`Response type '${type}' is not supported`, AxiosError$1.ERR_NOT_SUPPORT, config);
+      });
+  });
+})(new Response));
+
+const getBodyLength = async (body) => {
+  if (body == null) {
+    return 0;
+  }
+
+  if(utils$1.isBlob(body)) {
+    return body.size;
+  }
+
+  if(utils$1.isSpecCompliantForm(body)) {
+    const _request = new Request(platform.origin, {
+      method: 'POST',
+      body,
+    });
+    return (await _request.arrayBuffer()).byteLength;
+  }
+
+  if(utils$1.isArrayBufferView(body) || utils$1.isArrayBuffer(body)) {
+    return body.byteLength;
+  }
+
+  if(utils$1.isURLSearchParams(body)) {
+    body = body + '';
+  }
+
+  if(utils$1.isString(body)) {
+    return (await encodeText(body)).byteLength;
+  }
+};
+
+const resolveBodyLength = async (headers, body) => {
+  const length = utils$1.toFiniteNumber(headers.getContentLength());
+
+  return length == null ? getBodyLength(body) : length;
+};
+
+const fetchAdapter = isFetchSupported && (async (config) => {
+  let {
+    url,
+    method,
+    data,
+    signal,
+    cancelToken,
+    timeout,
+    onDownloadProgress,
+    onUploadProgress,
+    responseType,
+    headers,
+    withCredentials = 'same-origin',
+    fetchOptions
+  } = resolveConfig(config);
+
+  responseType = responseType ? (responseType + '').toLowerCase() : 'text';
+
+  let composedSignal = composeSignals$1([signal, cancelToken && cancelToken.toAbortSignal()], timeout);
+
+  let request;
+
+  const unsubscribe = composedSignal && composedSignal.unsubscribe && (() => {
+      composedSignal.unsubscribe();
+  });
+
+  let requestContentLength;
+
+  try {
+    if (
+      onUploadProgress && supportsRequestStream && method !== 'get' && method !== 'head' &&
+      (requestContentLength = await resolveBodyLength(headers, data)) !== 0
+    ) {
+      let _request = new Request(url, {
+        method: 'POST',
+        body: data,
+        duplex: "half"
+      });
+
+      let contentTypeHeader;
+
+      if (utils$1.isFormData(data) && (contentTypeHeader = _request.headers.get('content-type'))) {
+        headers.setContentType(contentTypeHeader);
+      }
+
+      if (_request.body) {
+        const [onProgress, flush] = progressEventDecorator(
+          requestContentLength,
+          progressEventReducer(asyncDecorator(onUploadProgress))
+        );
+
+        data = trackStream(_request.body, DEFAULT_CHUNK_SIZE, onProgress, flush);
+      }
+    }
+
+    if (!utils$1.isString(withCredentials)) {
+      withCredentials = withCredentials ? 'include' : 'omit';
+    }
+
+    // Cloudflare Workers throws when credentials are defined
+    // see https://github.com/cloudflare/workerd/issues/902
+    const isCredentialsSupported = "credentials" in Request.prototype;
+    request = new Request(url, {
+      ...fetchOptions,
+      signal: composedSignal,
+      method: method.toUpperCase(),
+      headers: headers.normalize().toJSON(),
+      body: data,
+      duplex: "half",
+      credentials: isCredentialsSupported ? withCredentials : undefined
+    });
+
+    let response = await fetch(request);
+
+    const isStreamResponse = supportsResponseStream && (responseType === 'stream' || responseType === 'response');
+
+    if (supportsResponseStream && (onDownloadProgress || (isStreamResponse && unsubscribe))) {
+      const options = {};
+
+      ['status', 'statusText', 'headers'].forEach(prop => {
+        options[prop] = response[prop];
+      });
+
+      const responseContentLength = utils$1.toFiniteNumber(response.headers.get('content-length'));
+
+      const [onProgress, flush] = onDownloadProgress && progressEventDecorator(
+        responseContentLength,
+        progressEventReducer(asyncDecorator(onDownloadProgress), true)
+      ) || [];
+
+      response = new Response(
+        trackStream(response.body, DEFAULT_CHUNK_SIZE, onProgress, () => {
+          flush && flush();
+          unsubscribe && unsubscribe();
+        }),
+        options
+      );
+    }
+
+    responseType = responseType || 'text';
+
+    let responseData = await resolvers[utils$1.findKey(resolvers, responseType) || 'text'](response, config);
+
+    !isStreamResponse && unsubscribe && unsubscribe();
+
+    return await new Promise((resolve, reject) => {
+      settle(resolve, reject, {
+        data: responseData,
+        headers: AxiosHeaders$2.from(response.headers),
+        status: response.status,
+        statusText: response.statusText,
+        config,
+        request
+      });
+    })
+  } catch (err) {
+    unsubscribe && unsubscribe();
+
+    if (err && err.name === 'TypeError' && /fetch/i.test(err.message)) {
+      throw Object.assign(
+        new AxiosError$1('Network Error', AxiosError$1.ERR_NETWORK, config, request),
+        {
+          cause: err.cause || err
+        }
+      )
+    }
+
+    throw AxiosError$1.from(err, err && err.code, config, request);
+  }
+});
+
+const knownAdapters = {
+  http: httpAdapter,
+  xhr: xhrAdapter,
+  fetch: fetchAdapter
+};
+
+utils$1.forEach(knownAdapters, (fn, value) => {
+  if (fn) {
+    try {
+      Object.defineProperty(fn, 'name', {value});
+    } catch (e) {
+      // eslint-disable-next-line no-empty
+    }
+    Object.defineProperty(fn, 'adapterName', {value});
+  }
+});
+
+const renderReason = (reason) => `- ${reason}`;
+
+const isResolvedHandle = (adapter) => utils$1.isFunction(adapter) || adapter === null || adapter === false;
+
+const adapters = {
+  getAdapter: (adapters) => {
+    adapters = utils$1.isArray(adapters) ? adapters : [adapters];
+
+    const {length} = adapters;
+    let nameOrAdapter;
+    let adapter;
+
+    const rejectedReasons = {};
+
+    for (let i = 0; i < length; i++) {
+      nameOrAdapter = adapters[i];
+      let id;
+
+      adapter = nameOrAdapter;
+
+      if (!isResolvedHandle(nameOrAdapter)) {
+        adapter = knownAdapters[(id = String(nameOrAdapter)).toLowerCase()];
+
+        if (adapter === undefined) {
+          throw new AxiosError$1(`Unknown adapter '${id}'`);
+        }
+      }
+
+      if (adapter) {
+        break;
+      }
+
+      rejectedReasons[id || '#' + i] = adapter;
+    }
+
+    if (!adapter) {
+
+      const reasons = Object.entries(rejectedReasons)
+        .map(([id, state]) => `adapter ${id} ` +
+          (state === false ? 'is not supported by the environment' : 'is not available in the build')
+        );
+
+      let s = length ?
+        (reasons.length > 1 ? 'since :\n' + reasons.map(renderReason).join('\n') : ' ' + renderReason(reasons[0])) :
+        'as no adapter specified';
+
+      throw new AxiosError$1(
+        `There is no suitable adapter to dispatch the request ` + s,
+        'ERR_NOT_SUPPORT'
+      );
+    }
+
+    return adapter;
+  },
+  adapters: knownAdapters
+};
+
+/**
+ * Throws a `CanceledError` if cancellation has been requested.
+ *
+ * @param {Object} config The config that is to be used for the request
+ *
+ * @returns {void}
+ */
+function throwIfCancellationRequested(config) {
+  if (config.cancelToken) {
+    config.cancelToken.throwIfRequested();
+  }
+
+  if (config.signal && config.signal.aborted) {
+    throw new CanceledError$1(null, config);
+  }
+}
+
+/**
+ * Dispatch a request to the server using the configured adapter.
+ *
+ * @param {object} config The config that is to be used for the request
+ *
+ * @returns {Promise} The Promise to be fulfilled
+ */
+function dispatchRequest(config) {
+  throwIfCancellationRequested(config);
+
+  config.headers = AxiosHeaders$2.from(config.headers);
+
+  // Transform request data
+  config.data = transformData.call(
+    config,
+    config.transformRequest
+  );
+
+  if (['post', 'put', 'patch'].indexOf(config.method) !== -1) {
+    config.headers.setContentType('application/x-www-form-urlencoded', false);
+  }
+
+  const adapter = adapters.getAdapter(config.adapter || defaults$1.adapter);
+
+  return adapter(config).then(function onAdapterResolution(response) {
+    throwIfCancellationRequested(config);
+
+    // Transform response data
+    response.data = transformData.call(
+      config,
+      config.transformResponse,
+      response
+    );
+
+    response.headers = AxiosHeaders$2.from(response.headers);
+
+    return response;
+  }, function onAdapterRejection(reason) {
+    if (!isCancel$1(reason)) {
+      throwIfCancellationRequested(config);
+
+      // Transform response data
+      if (reason && reason.response) {
+        reason.response.data = transformData.call(
+          config,
+          config.transformResponse,
+          reason.response
+        );
+        reason.response.headers = AxiosHeaders$2.from(reason.response.headers);
+      }
+    }
+
+    return Promise.reject(reason);
+  });
+}
+
+const VERSION$1 = "1.7.9";
+
+const validators$1 = {};
+
+// eslint-disable-next-line func-names
+['object', 'boolean', 'number', 'function', 'string', 'symbol'].forEach((type, i) => {
+  validators$1[type] = function validator(thing) {
+    return typeof thing === type || 'a' + (i < 1 ? 'n ' : ' ') + type;
+  };
+});
+
+const deprecatedWarnings = {};
+
+/**
+ * Transitional option validator
+ *
+ * @param {function|boolean?} validator - set to false if the transitional option has been removed
+ * @param {string?} version - deprecated version / removed since version
+ * @param {string?} message - some message with additional info
+ *
+ * @returns {function}
+ */
+validators$1.transitional = function transitional(validator, version, message) {
+  function formatMessage(opt, desc) {
+    return '[Axios v' + VERSION$1 + '] Transitional option \'' + opt + '\'' + desc + (message ? '. ' + message : '');
+  }
+
+  // eslint-disable-next-line func-names
+  return (value, opt, opts) => {
+    if (validator === false) {
+      throw new AxiosError$1(
+        formatMessage(opt, ' has been removed' + (version ? ' in ' + version : '')),
+        AxiosError$1.ERR_DEPRECATED
+      );
+    }
+
+    if (version && !deprecatedWarnings[opt]) {
+      deprecatedWarnings[opt] = true;
+      // eslint-disable-next-line no-console
+      console.warn(
+        formatMessage(
+          opt,
+          ' has been deprecated since v' + version + ' and will be removed in the near future'
+        )
+      );
+    }
+
+    return validator ? validator(value, opt, opts) : true;
+  };
+};
+
+validators$1.spelling = function spelling(correctSpelling) {
+  return (value, opt) => {
+    // eslint-disable-next-line no-console
+    console.warn(`${opt} is likely a misspelling of ${correctSpelling}`);
+    return true;
+  }
+};
+
+/**
+ * Assert object's properties type
+ *
+ * @param {object} options
+ * @param {object} schema
+ * @param {boolean?} allowUnknown
+ *
+ * @returns {object}
+ */
+
+function assertOptions(options, schema, allowUnknown) {
+  if (typeof options !== 'object') {
+    throw new AxiosError$1('options must be an object', AxiosError$1.ERR_BAD_OPTION_VALUE);
+  }
+  const keys = Object.keys(options);
+  let i = keys.length;
+  while (i-- > 0) {
+    const opt = keys[i];
+    const validator = schema[opt];
+    if (validator) {
+      const value = options[opt];
+      const result = value === undefined || validator(value, opt, options);
+      if (result !== true) {
+        throw new AxiosError$1('option ' + opt + ' must be ' + result, AxiosError$1.ERR_BAD_OPTION_VALUE);
+      }
+      continue;
+    }
+    if (allowUnknown !== true) {
+      throw new AxiosError$1('Unknown option ' + opt, AxiosError$1.ERR_BAD_OPTION);
+    }
+  }
+}
+
+const validator = {
+  assertOptions,
+  validators: validators$1
+};
+
+const validators = validator.validators;
+
+/**
+ * Create a new instance of Axios
+ *
+ * @param {Object} instanceConfig The default config for the instance
+ *
+ * @return {Axios} A new instance of Axios
+ */
+class Axios$1 {
+  constructor(instanceConfig) {
+    this.defaults = instanceConfig;
+    this.interceptors = {
+      request: new InterceptorManager$1(),
+      response: new InterceptorManager$1()
+    };
+  }
+
+  /**
+   * Dispatch a request
+   *
+   * @param {String|Object} configOrUrl The config specific for this request (merged with this.defaults)
+   * @param {?Object} config
+   *
+   * @returns {Promise} The Promise to be fulfilled
+   */
+  async request(configOrUrl, config) {
+    try {
+      return await this._request(configOrUrl, config);
+    } catch (err) {
+      if (err instanceof Error) {
+        let dummy = {};
+
+        Error.captureStackTrace ? Error.captureStackTrace(dummy) : (dummy = new Error());
+
+        // slice off the Error: ... line
+        const stack = dummy.stack ? dummy.stack.replace(/^.+\n/, '') : '';
+        try {
+          if (!err.stack) {
+            err.stack = stack;
+            // match without the 2 top stack lines
+          } else if (stack && !String(err.stack).endsWith(stack.replace(/^.+\n.+\n/, ''))) {
+            err.stack += '\n' + stack;
+          }
+        } catch (e) {
+          // ignore the case where "stack" is an un-writable property
+        }
+      }
+
+      throw err;
+    }
+  }
+
+  _request(configOrUrl, config) {
+    /*eslint no-param-reassign:0*/
+    // Allow for axios('example/url'[, config]) a la fetch API
+    if (typeof configOrUrl === 'string') {
+      config = config || {};
+      config.url = configOrUrl;
+    } else {
+      config = configOrUrl || {};
+    }
+
+    config = mergeConfig$1(this.defaults, config);
+
+    const {transitional, paramsSerializer, headers} = config;
+
+    if (transitional !== undefined) {
+      validator.assertOptions(transitional, {
+        silentJSONParsing: validators.transitional(validators.boolean),
+        forcedJSONParsing: validators.transitional(validators.boolean),
+        clarifyTimeoutError: validators.transitional(validators.boolean)
+      }, false);
+    }
+
+    if (paramsSerializer != null) {
+      if (utils$1.isFunction(paramsSerializer)) {
+        config.paramsSerializer = {
+          serialize: paramsSerializer
+        };
+      } else {
+        validator.assertOptions(paramsSerializer, {
+          encode: validators.function,
+          serialize: validators.function
+        }, true);
+      }
+    }
+
+    validator.assertOptions(config, {
+      baseUrl: validators.spelling('baseURL'),
+      withXsrfToken: validators.spelling('withXSRFToken')
+    }, true);
+
+    // Set config.method
+    config.method = (config.method || this.defaults.method || 'get').toLowerCase();
+
+    // Flatten headers
+    let contextHeaders = headers && utils$1.merge(
+      headers.common,
+      headers[config.method]
+    );
+
+    headers && utils$1.forEach(
+      ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],
+      (method) => {
+        delete headers[method];
+      }
+    );
+
+    config.headers = AxiosHeaders$2.concat(contextHeaders, headers);
+
+    // filter out skipped interceptors
+    const requestInterceptorChain = [];
+    let synchronousRequestInterceptors = true;
+    this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {
+      if (typeof interceptor.runWhen === 'function' && interceptor.runWhen(config) === false) {
+        return;
+      }
+
+      synchronousRequestInterceptors = synchronousRequestInterceptors && interceptor.synchronous;
+
+      requestInterceptorChain.unshift(interceptor.fulfilled, interceptor.rejected);
+    });
+
+    const responseInterceptorChain = [];
+    this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {
+      responseInterceptorChain.push(interceptor.fulfilled, interceptor.rejected);
+    });
+
+    let promise;
+    let i = 0;
+    let len;
+
+    if (!synchronousRequestInterceptors) {
+      const chain = [dispatchRequest.bind(this), undefined];
+      chain.unshift.apply(chain, requestInterceptorChain);
+      chain.push.apply(chain, responseInterceptorChain);
+      len = chain.length;
+
+      promise = Promise.resolve(config);
+
+      while (i < len) {
+        promise = promise.then(chain[i++], chain[i++]);
+      }
+
+      return promise;
+    }
+
+    len = requestInterceptorChain.length;
+
+    let newConfig = config;
+
+    i = 0;
+
+    while (i < len) {
+      const onFulfilled = requestInterceptorChain[i++];
+      const onRejected = requestInterceptorChain[i++];
+      try {
+        newConfig = onFulfilled(newConfig);
+      } catch (error) {
+        onRejected.call(this, error);
+        break;
+      }
+    }
+
+    try {
+      promise = dispatchRequest.call(this, newConfig);
+    } catch (error) {
+      return Promise.reject(error);
+    }
+
+    i = 0;
+    len = responseInterceptorChain.length;
+
+    while (i < len) {
+      promise = promise.then(responseInterceptorChain[i++], responseInterceptorChain[i++]);
+    }
+
+    return promise;
+  }
+
+  getUri(config) {
+    config = mergeConfig$1(this.defaults, config);
+    const fullPath = buildFullPath(config.baseURL, config.url);
+    return buildURL(fullPath, config.params, config.paramsSerializer);
+  }
+}
+
+// Provide aliases for supported request methods
+utils$1.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {
+  /*eslint func-names:0*/
+  Axios$1.prototype[method] = function(url, config) {
+    return this.request(mergeConfig$1(config || {}, {
+      method,
+      url,
+      data: (config || {}).data
+    }));
+  };
+});
+
+utils$1.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
+  /*eslint func-names:0*/
+
+  function generateHTTPMethod(isForm) {
+    return function httpMethod(url, data, config) {
+      return this.request(mergeConfig$1(config || {}, {
+        method,
+        headers: isForm ? {
+          'Content-Type': 'multipart/form-data'
+        } : {},
+        url,
+        data
+      }));
+    };
+  }
+
+  Axios$1.prototype[method] = generateHTTPMethod();
+
+  Axios$1.prototype[method + 'Form'] = generateHTTPMethod(true);
+});
+
+const Axios$2 = Axios$1;
+
+/**
+ * A `CancelToken` is an object that can be used to request cancellation of an operation.
+ *
+ * @param {Function} executor The executor function.
+ *
+ * @returns {CancelToken}
+ */
+class CancelToken$1 {
+  constructor(executor) {
+    if (typeof executor !== 'function') {
+      throw new TypeError('executor must be a function.');
+    }
+
+    let resolvePromise;
+
+    this.promise = new Promise(function promiseExecutor(resolve) {
+      resolvePromise = resolve;
+    });
+
+    const token = this;
+
+    // eslint-disable-next-line func-names
+    this.promise.then(cancel => {
+      if (!token._listeners) return;
+
+      let i = token._listeners.length;
+
+      while (i-- > 0) {
+        token._listeners[i](cancel);
+      }
+      token._listeners = null;
+    });
+
+    // eslint-disable-next-line func-names
+    this.promise.then = onfulfilled => {
+      let _resolve;
+      // eslint-disable-next-line func-names
+      const promise = new Promise(resolve => {
+        token.subscribe(resolve);
+        _resolve = resolve;
+      }).then(onfulfilled);
+
+      promise.cancel = function reject() {
+        token.unsubscribe(_resolve);
+      };
+
+      return promise;
+    };
+
+    executor(function cancel(message, config, request) {
+      if (token.reason) {
+        // Cancellation has already been requested
+        return;
+      }
+
+      token.reason = new CanceledError$1(message, config, request);
+      resolvePromise(token.reason);
+    });
+  }
+
+  /**
+   * Throws a `CanceledError` if cancellation has been requested.
+   */
+  throwIfRequested() {
+    if (this.reason) {
+      throw this.reason;
+    }
+  }
+
+  /**
+   * Subscribe to the cancel signal
+   */
+
+  subscribe(listener) {
+    if (this.reason) {
+      listener(this.reason);
+      return;
+    }
+
+    if (this._listeners) {
+      this._listeners.push(listener);
+    } else {
+      this._listeners = [listener];
+    }
+  }
+
+  /**
+   * Unsubscribe from the cancel signal
+   */
+
+  unsubscribe(listener) {
+    if (!this._listeners) {
+      return;
+    }
+    const index = this._listeners.indexOf(listener);
+    if (index !== -1) {
+      this._listeners.splice(index, 1);
+    }
+  }
+
+  toAbortSignal() {
+    const controller = new AbortController();
+
+    const abort = (err) => {
+      controller.abort(err);
+    };
+
+    this.subscribe(abort);
+
+    controller.signal.unsubscribe = () => this.unsubscribe(abort);
+
+    return controller.signal;
+  }
+
+  /**
+   * Returns an object that contains a new `CancelToken` and a function that, when called,
+   * cancels the `CancelToken`.
+   */
+  static source() {
+    let cancel;
+    const token = new CancelToken$1(function executor(c) {
+      cancel = c;
+    });
+    return {
+      token,
+      cancel
+    };
+  }
+}
+
+const CancelToken$2 = CancelToken$1;
+
+/**
+ * Syntactic sugar for invoking a function and expanding an array for arguments.
+ *
+ * Common use case would be to use `Function.prototype.apply`.
+ *
+ *  ```js
+ *  function f(x, y, z) {}
+ *  var args = [1, 2, 3];
+ *  f.apply(null, args);
+ *  ```
+ *
+ * With `spread` this example can be re-written.
+ *
+ *  ```js
+ *  spread(function(x, y, z) {})([1, 2, 3]);
+ *  ```
+ *
+ * @param {Function} callback
+ *
+ * @returns {Function}
+ */
+function spread$1(callback) {
+  return function wrap(arr) {
+    return callback.apply(null, arr);
+  };
+}
+
+/**
+ * Determines whether the payload is an error thrown by Axios
+ *
+ * @param {*} payload The value to test
+ *
+ * @returns {boolean} True if the payload is an error thrown by Axios, otherwise false
+ */
+function isAxiosError$1(payload) {
+  return utils$1.isObject(payload) && (payload.isAxiosError === true);
+}
+
+const HttpStatusCode$1 = {
+  Continue: 100,
+  SwitchingProtocols: 101,
+  Processing: 102,
+  EarlyHints: 103,
+  Ok: 200,
+  Created: 201,
+  Accepted: 202,
+  NonAuthoritativeInformation: 203,
+  NoContent: 204,
+  ResetContent: 205,
+  PartialContent: 206,
+  MultiStatus: 207,
+  AlreadyReported: 208,
+  ImUsed: 226,
+  MultipleChoices: 300,
+  MovedPermanently: 301,
+  Found: 302,
+  SeeOther: 303,
+  NotModified: 304,
+  UseProxy: 305,
+  Unused: 306,
+  TemporaryRedirect: 307,
+  PermanentRedirect: 308,
+  BadRequest: 400,
+  Unauthorized: 401,
+  PaymentRequired: 402,
+  Forbidden: 403,
+  NotFound: 404,
+  MethodNotAllowed: 405,
+  NotAcceptable: 406,
+  ProxyAuthenticationRequired: 407,
+  RequestTimeout: 408,
+  Conflict: 409,
+  Gone: 410,
+  LengthRequired: 411,
+  PreconditionFailed: 412,
+  PayloadTooLarge: 413,
+  UriTooLong: 414,
+  UnsupportedMediaType: 415,
+  RangeNotSatisfiable: 416,
+  ExpectationFailed: 417,
+  ImATeapot: 418,
+  MisdirectedRequest: 421,
+  UnprocessableEntity: 422,
+  Locked: 423,
+  FailedDependency: 424,
+  TooEarly: 425,
+  UpgradeRequired: 426,
+  PreconditionRequired: 428,
+  TooManyRequests: 429,
+  RequestHeaderFieldsTooLarge: 431,
+  UnavailableForLegalReasons: 451,
+  InternalServerError: 500,
+  NotImplemented: 501,
+  BadGateway: 502,
+  ServiceUnavailable: 503,
+  GatewayTimeout: 504,
+  HttpVersionNotSupported: 505,
+  VariantAlsoNegotiates: 506,
+  InsufficientStorage: 507,
+  LoopDetected: 508,
+  NotExtended: 510,
+  NetworkAuthenticationRequired: 511,
+};
+
+Object.entries(HttpStatusCode$1).forEach(([key, value]) => {
+  HttpStatusCode$1[value] = key;
+});
+
+const HttpStatusCode$2 = HttpStatusCode$1;
+
+/**
+ * Create an instance of Axios
+ *
+ * @param {Object} defaultConfig The default config for the instance
+ *
+ * @returns {Axios} A new instance of Axios
+ */
+function createInstance(defaultConfig) {
+  const context = new Axios$2(defaultConfig);
+  const instance = bind(Axios$2.prototype.request, context);
+
+  // Copy axios.prototype to instance
+  utils$1.extend(instance, Axios$2.prototype, context, {allOwnKeys: true});
+
+  // Copy context to instance
+  utils$1.extend(instance, context, null, {allOwnKeys: true});
+
+  // Factory for creating new instances
+  instance.create = function create(instanceConfig) {
+    return createInstance(mergeConfig$1(defaultConfig, instanceConfig));
+  };
+
+  return instance;
+}
+
+// Create the default instance to be exported
+const axios = createInstance(defaults$1);
+
+// Expose Axios class to allow class inheritance
+axios.Axios = Axios$2;
+
+// Expose Cancel & CancelToken
+axios.CanceledError = CanceledError$1;
+axios.CancelToken = CancelToken$2;
+axios.isCancel = isCancel$1;
+axios.VERSION = VERSION$1;
+axios.toFormData = toFormData$1;
+
+// Expose AxiosError class
+axios.AxiosError = AxiosError$1;
+
+// alias for CanceledError for backward compatibility
+axios.Cancel = axios.CanceledError;
+
+// Expose all/spread
+axios.all = function all(promises) {
+  return Promise.all(promises);
+};
+
+axios.spread = spread$1;
+
+// Expose isAxiosError
+axios.isAxiosError = isAxiosError$1;
+
+// Expose mergeConfig
+axios.mergeConfig = mergeConfig$1;
+
+axios.AxiosHeaders = AxiosHeaders$2;
+
+axios.formToJSON = thing => formDataToJSON(utils$1.isHTMLForm(thing) ? new FormData(thing) : thing);
+
+axios.getAdapter = adapters.getAdapter;
+
+axios.HttpStatusCode = HttpStatusCode$2;
+
+axios.default = axios;
+
+// this module should only have a default export
+const axios$1 = axios;
+
+// This module is intended to unwrap Axios default export as named.
+// Keep top-level export same with static properties
+// so that it can keep same with es module or cjs
+const {
+  Axios,
+  AxiosError,
+  CanceledError,
+  isCancel,
+  CancelToken,
+  VERSION,
+  all,
+  Cancel,
+  isAxiosError,
+  spread,
+  toFormData,
+  AxiosHeaders,
+  HttpStatusCode,
+  formToJSON,
+  getAdapter,
+  mergeConfig
+} = axios$1;
+
+export { Axios, AxiosError, AxiosHeaders, Cancel, CancelToken, CanceledError, HttpStatusCode, VERSION, all, axios$1 as default, formToJSON, getAdapter, isAxiosError, isCancel, mergeConfig, spread, toFormData };
+//# sourceMappingURL=axios.js.map
diff --git a/backend/node_modules/axios/dist/esm/axios.js.map b/backend/node_modules/axios/dist/esm/axios.js.map
new file mode 100644
index 0000000..cf8f508
--- /dev/null
+++ b/backend/node_modules/axios/dist/esm/axios.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"axios.js","sources":["../../lib/helpers/bind.js","../../lib/utils.js","../../lib/core/AxiosError.js","../../lib/helpers/null.js","../../lib/helpers/toFormData.js","../../lib/helpers/AxiosURLSearchParams.js","../../lib/helpers/buildURL.js","../../lib/core/InterceptorManager.js","../../lib/defaults/transitional.js","../../lib/platform/browser/classes/URLSearchParams.js","../../lib/platform/browser/classes/FormData.js","../../lib/platform/browser/classes/Blob.js","../../lib/platform/browser/index.js","../../lib/platform/common/utils.js","../../lib/platform/index.js","../../lib/helpers/toURLEncodedForm.js","../../lib/helpers/formDataToJSON.js","../../lib/defaults/index.js","../../lib/helpers/parseHeaders.js","../../lib/core/AxiosHeaders.js","../../lib/core/transformData.js","../../lib/cancel/isCancel.js","../../lib/cancel/CanceledError.js","../../lib/core/settle.js","../../lib/helpers/parseProtocol.js","../../lib/helpers/speedometer.js","../../lib/helpers/throttle.js","../../lib/helpers/progressEventReducer.js","../../lib/helpers/isURLSameOrigin.js","../../lib/helpers/cookies.js","../../lib/helpers/isAbsoluteURL.js","../../lib/helpers/combineURLs.js","../../lib/core/buildFullPath.js","../../lib/core/mergeConfig.js","../../lib/helpers/resolveConfig.js","../../lib/adapters/xhr.js","../../lib/helpers/composeSignals.js","../../lib/helpers/trackStream.js","../../lib/adapters/fetch.js","../../lib/adapters/adapters.js","../../lib/core/dispatchRequest.js","../../lib/env/data.js","../../lib/helpers/validator.js","../../lib/core/Axios.js","../../lib/cancel/CancelToken.js","../../lib/helpers/spread.js","../../lib/helpers/isAxiosError.js","../../lib/helpers/HttpStatusCode.js","../../lib/axios.js","../../index.js"],"sourcesContent":["'use strict';\n\nexport default function bind(fn, thisArg) {\n  return function wrap() {\n    return fn.apply(thisArg, arguments);\n  };\n}\n","'use strict';\n\nimport bind from './helpers/bind.js';\n\n// utils is a library of generic helper functions non-specific to axios\n\nconst {toString} = Object.prototype;\nconst {getPrototypeOf} = Object;\n\nconst kindOf = (cache => thing => {\n    const str = toString.call(thing);\n    return cache[str] || (cache[str] = str.slice(8, -1).toLowerCase());\n})(Object.create(null));\n\nconst kindOfTest = (type) => {\n  type = type.toLowerCase();\n  return (thing) => kindOf(thing) === type\n}\n\nconst typeOfTest = type => thing => typeof thing === type;\n\n/**\n * Determine if a value is an Array\n *\n * @param {Object} val The value to test\n *\n * @returns {boolean} True if value is an Array, otherwise false\n */\nconst {isArray} = Array;\n\n/**\n * Determine if a value is undefined\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if the value is undefined, otherwise false\n */\nconst isUndefined = typeOfTest('undefined');\n\n/**\n * Determine if a value is a Buffer\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Buffer, otherwise false\n */\nfunction isBuffer(val) {\n  return val !== null && !isUndefined(val) && val.constructor !== null && !isUndefined(val.constructor)\n    && isFunction(val.constructor.isBuffer) && val.constructor.isBuffer(val);\n}\n\n/**\n * Determine if a value is an ArrayBuffer\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is an ArrayBuffer, otherwise false\n */\nconst isArrayBuffer = kindOfTest('ArrayBuffer');\n\n\n/**\n * Determine if a value is a view on an ArrayBuffer\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false\n */\nfunction isArrayBufferView(val) {\n  let result;\n  if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) {\n    result = ArrayBuffer.isView(val);\n  } else {\n    result = (val) && (val.buffer) && (isArrayBuffer(val.buffer));\n  }\n  return result;\n}\n\n/**\n * Determine if a value is a String\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a String, otherwise false\n */\nconst isString = typeOfTest('string');\n\n/**\n * Determine if a value is a Function\n *\n * @param {*} val The value to test\n * @returns {boolean} True if value is a Function, otherwise false\n */\nconst isFunction = typeOfTest('function');\n\n/**\n * Determine if a value is a Number\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Number, otherwise false\n */\nconst isNumber = typeOfTest('number');\n\n/**\n * Determine if a value is an Object\n *\n * @param {*} thing The value to test\n *\n * @returns {boolean} True if value is an Object, otherwise false\n */\nconst isObject = (thing) => thing !== null && typeof thing === 'object';\n\n/**\n * Determine if a value is a Boolean\n *\n * @param {*} thing The value to test\n * @returns {boolean} True if value is a Boolean, otherwise false\n */\nconst isBoolean = thing => thing === true || thing === false;\n\n/**\n * Determine if a value is a plain Object\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a plain Object, otherwise false\n */\nconst isPlainObject = (val) => {\n  if (kindOf(val) !== 'object') {\n    return false;\n  }\n\n  const prototype = getPrototypeOf(val);\n  return (prototype === null || prototype === Object.prototype || Object.getPrototypeOf(prototype) === null) && !(Symbol.toStringTag in val) && !(Symbol.iterator in val);\n}\n\n/**\n * Determine if a value is a Date\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Date, otherwise false\n */\nconst isDate = kindOfTest('Date');\n\n/**\n * Determine if a value is a File\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a File, otherwise false\n */\nconst isFile = kindOfTest('File');\n\n/**\n * Determine if a value is a Blob\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Blob, otherwise false\n */\nconst isBlob = kindOfTest('Blob');\n\n/**\n * Determine if a value is a FileList\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a File, otherwise false\n */\nconst isFileList = kindOfTest('FileList');\n\n/**\n * Determine if a value is a Stream\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Stream, otherwise false\n */\nconst isStream = (val) => isObject(val) && isFunction(val.pipe);\n\n/**\n * Determine if a value is a FormData\n *\n * @param {*} thing The value to test\n *\n * @returns {boolean} True if value is an FormData, otherwise false\n */\nconst isFormData = (thing) => {\n  let kind;\n  return thing && (\n    (typeof FormData === 'function' && thing instanceof FormData) || (\n      isFunction(thing.append) && (\n        (kind = kindOf(thing)) === 'formdata' ||\n        // detect form-data instance\n        (kind === 'object' && isFunction(thing.toString) && thing.toString() === '[object FormData]')\n      )\n    )\n  )\n}\n\n/**\n * Determine if a value is a URLSearchParams object\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a URLSearchParams object, otherwise false\n */\nconst isURLSearchParams = kindOfTest('URLSearchParams');\n\nconst [isReadableStream, isRequest, isResponse, isHeaders] = ['ReadableStream', 'Request', 'Response', 'Headers'].map(kindOfTest);\n\n/**\n * Trim excess whitespace off the beginning and end of a string\n *\n * @param {String} str The String to trim\n *\n * @returns {String} The String freed of excess whitespace\n */\nconst trim = (str) => str.trim ?\n  str.trim() : str.replace(/^[\\s\\uFEFF\\xA0]+|[\\s\\uFEFF\\xA0]+$/g, '');\n\n/**\n * Iterate over an Array or an Object invoking a function for each item.\n *\n * If `obj` is an Array callback will be called passing\n * the value, index, and complete array for each item.\n *\n * If 'obj' is an Object callback will be called passing\n * the value, key, and complete object for each property.\n *\n * @param {Object|Array} obj The object to iterate\n * @param {Function} fn The callback to invoke for each item\n *\n * @param {Boolean} [allOwnKeys = false]\n * @returns {any}\n */\nfunction forEach(obj, fn, {allOwnKeys = false} = {}) {\n  // Don't bother if no value provided\n  if (obj === null || typeof obj === 'undefined') {\n    return;\n  }\n\n  let i;\n  let l;\n\n  // Force an array if not already something iterable\n  if (typeof obj !== 'object') {\n    /*eslint no-param-reassign:0*/\n    obj = [obj];\n  }\n\n  if (isArray(obj)) {\n    // Iterate over array values\n    for (i = 0, l = obj.length; i < l; i++) {\n      fn.call(null, obj[i], i, obj);\n    }\n  } else {\n    // Iterate over object keys\n    const keys = allOwnKeys ? Object.getOwnPropertyNames(obj) : Object.keys(obj);\n    const len = keys.length;\n    let key;\n\n    for (i = 0; i < len; i++) {\n      key = keys[i];\n      fn.call(null, obj[key], key, obj);\n    }\n  }\n}\n\nfunction findKey(obj, key) {\n  key = key.toLowerCase();\n  const keys = Object.keys(obj);\n  let i = keys.length;\n  let _key;\n  while (i-- > 0) {\n    _key = keys[i];\n    if (key === _key.toLowerCase()) {\n      return _key;\n    }\n  }\n  return null;\n}\n\nconst _global = (() => {\n  /*eslint no-undef:0*/\n  if (typeof globalThis !== \"undefined\") return globalThis;\n  return typeof self !== \"undefined\" ? self : (typeof window !== 'undefined' ? window : global)\n})();\n\nconst isContextDefined = (context) => !isUndefined(context) && context !== _global;\n\n/**\n * Accepts varargs expecting each argument to be an object, then\n * immutably merges the properties of each object and returns result.\n *\n * When multiple objects contain the same key the later object in\n * the arguments list will take precedence.\n *\n * Example:\n *\n * ```js\n * var result = merge({foo: 123}, {foo: 456});\n * console.log(result.foo); // outputs 456\n * ```\n *\n * @param {Object} obj1 Object to merge\n *\n * @returns {Object} Result of all merge properties\n */\nfunction merge(/* obj1, obj2, obj3, ... */) {\n  const {caseless} = isContextDefined(this) && this || {};\n  const result = {};\n  const assignValue = (val, key) => {\n    const targetKey = caseless && findKey(result, key) || key;\n    if (isPlainObject(result[targetKey]) && isPlainObject(val)) {\n      result[targetKey] = merge(result[targetKey], val);\n    } else if (isPlainObject(val)) {\n      result[targetKey] = merge({}, val);\n    } else if (isArray(val)) {\n      result[targetKey] = val.slice();\n    } else {\n      result[targetKey] = val;\n    }\n  }\n\n  for (let i = 0, l = arguments.length; i < l; i++) {\n    arguments[i] && forEach(arguments[i], assignValue);\n  }\n  return result;\n}\n\n/**\n * Extends object a by mutably adding to it the properties of object b.\n *\n * @param {Object} a The object to be extended\n * @param {Object} b The object to copy properties from\n * @param {Object} thisArg The object to bind function to\n *\n * @param {Boolean} [allOwnKeys]\n * @returns {Object} The resulting value of object a\n */\nconst extend = (a, b, thisArg, {allOwnKeys}= {}) => {\n  forEach(b, (val, key) => {\n    if (thisArg && isFunction(val)) {\n      a[key] = bind(val, thisArg);\n    } else {\n      a[key] = val;\n    }\n  }, {allOwnKeys});\n  return a;\n}\n\n/**\n * Remove byte order marker. This catches EF BB BF (the UTF-8 BOM)\n *\n * @param {string} content with BOM\n *\n * @returns {string} content value without BOM\n */\nconst stripBOM = (content) => {\n  if (content.charCodeAt(0) === 0xFEFF) {\n    content = content.slice(1);\n  }\n  return content;\n}\n\n/**\n * Inherit the prototype methods from one constructor into another\n * @param {function} constructor\n * @param {function} superConstructor\n * @param {object} [props]\n * @param {object} [descriptors]\n *\n * @returns {void}\n */\nconst inherits = (constructor, superConstructor, props, descriptors) => {\n  constructor.prototype = Object.create(superConstructor.prototype, descriptors);\n  constructor.prototype.constructor = constructor;\n  Object.defineProperty(constructor, 'super', {\n    value: superConstructor.prototype\n  });\n  props && Object.assign(constructor.prototype, props);\n}\n\n/**\n * Resolve object with deep prototype chain to a flat object\n * @param {Object} sourceObj source object\n * @param {Object} [destObj]\n * @param {Function|Boolean} [filter]\n * @param {Function} [propFilter]\n *\n * @returns {Object}\n */\nconst toFlatObject = (sourceObj, destObj, filter, propFilter) => {\n  let props;\n  let i;\n  let prop;\n  const merged = {};\n\n  destObj = destObj || {};\n  // eslint-disable-next-line no-eq-null,eqeqeq\n  if (sourceObj == null) return destObj;\n\n  do {\n    props = Object.getOwnPropertyNames(sourceObj);\n    i = props.length;\n    while (i-- > 0) {\n      prop = props[i];\n      if ((!propFilter || propFilter(prop, sourceObj, destObj)) && !merged[prop]) {\n        destObj[prop] = sourceObj[prop];\n        merged[prop] = true;\n      }\n    }\n    sourceObj = filter !== false && getPrototypeOf(sourceObj);\n  } while (sourceObj && (!filter || filter(sourceObj, destObj)) && sourceObj !== Object.prototype);\n\n  return destObj;\n}\n\n/**\n * Determines whether a string ends with the characters of a specified string\n *\n * @param {String} str\n * @param {String} searchString\n * @param {Number} [position= 0]\n *\n * @returns {boolean}\n */\nconst endsWith = (str, searchString, position) => {\n  str = String(str);\n  if (position === undefined || position > str.length) {\n    position = str.length;\n  }\n  position -= searchString.length;\n  const lastIndex = str.indexOf(searchString, position);\n  return lastIndex !== -1 && lastIndex === position;\n}\n\n\n/**\n * Returns new array from array like object or null if failed\n *\n * @param {*} [thing]\n *\n * @returns {?Array}\n */\nconst toArray = (thing) => {\n  if (!thing) return null;\n  if (isArray(thing)) return thing;\n  let i = thing.length;\n  if (!isNumber(i)) return null;\n  const arr = new Array(i);\n  while (i-- > 0) {\n    arr[i] = thing[i];\n  }\n  return arr;\n}\n\n/**\n * Checking if the Uint8Array exists and if it does, it returns a function that checks if the\n * thing passed in is an instance of Uint8Array\n *\n * @param {TypedArray}\n *\n * @returns {Array}\n */\n// eslint-disable-next-line func-names\nconst isTypedArray = (TypedArray => {\n  // eslint-disable-next-line func-names\n  return thing => {\n    return TypedArray && thing instanceof TypedArray;\n  };\n})(typeof Uint8Array !== 'undefined' && getPrototypeOf(Uint8Array));\n\n/**\n * For each entry in the object, call the function with the key and value.\n *\n * @param {Object<any, any>} obj - The object to iterate over.\n * @param {Function} fn - The function to call for each entry.\n *\n * @returns {void}\n */\nconst forEachEntry = (obj, fn) => {\n  const generator = obj && obj[Symbol.iterator];\n\n  const iterator = generator.call(obj);\n\n  let result;\n\n  while ((result = iterator.next()) && !result.done) {\n    const pair = result.value;\n    fn.call(obj, pair[0], pair[1]);\n  }\n}\n\n/**\n * It takes a regular expression and a string, and returns an array of all the matches\n *\n * @param {string} regExp - The regular expression to match against.\n * @param {string} str - The string to search.\n *\n * @returns {Array<boolean>}\n */\nconst matchAll = (regExp, str) => {\n  let matches;\n  const arr = [];\n\n  while ((matches = regExp.exec(str)) !== null) {\n    arr.push(matches);\n  }\n\n  return arr;\n}\n\n/* Checking if the kindOfTest function returns true when passed an HTMLFormElement. */\nconst isHTMLForm = kindOfTest('HTMLFormElement');\n\nconst toCamelCase = str => {\n  return str.toLowerCase().replace(/[-_\\s]([a-z\\d])(\\w*)/g,\n    function replacer(m, p1, p2) {\n      return p1.toUpperCase() + p2;\n    }\n  );\n};\n\n/* Creating a function that will check if an object has a property. */\nconst hasOwnProperty = (({hasOwnProperty}) => (obj, prop) => hasOwnProperty.call(obj, prop))(Object.prototype);\n\n/**\n * Determine if a value is a RegExp object\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a RegExp object, otherwise false\n */\nconst isRegExp = kindOfTest('RegExp');\n\nconst reduceDescriptors = (obj, reducer) => {\n  const descriptors = Object.getOwnPropertyDescriptors(obj);\n  const reducedDescriptors = {};\n\n  forEach(descriptors, (descriptor, name) => {\n    let ret;\n    if ((ret = reducer(descriptor, name, obj)) !== false) {\n      reducedDescriptors[name] = ret || descriptor;\n    }\n  });\n\n  Object.defineProperties(obj, reducedDescriptors);\n}\n\n/**\n * Makes all methods read-only\n * @param {Object} obj\n */\n\nconst freezeMethods = (obj) => {\n  reduceDescriptors(obj, (descriptor, name) => {\n    // skip restricted props in strict mode\n    if (isFunction(obj) && ['arguments', 'caller', 'callee'].indexOf(name) !== -1) {\n      return false;\n    }\n\n    const value = obj[name];\n\n    if (!isFunction(value)) return;\n\n    descriptor.enumerable = false;\n\n    if ('writable' in descriptor) {\n      descriptor.writable = false;\n      return;\n    }\n\n    if (!descriptor.set) {\n      descriptor.set = () => {\n        throw Error('Can not rewrite read-only method \\'' + name + '\\'');\n      };\n    }\n  });\n}\n\nconst toObjectSet = (arrayOrString, delimiter) => {\n  const obj = {};\n\n  const define = (arr) => {\n    arr.forEach(value => {\n      obj[value] = true;\n    });\n  }\n\n  isArray(arrayOrString) ? define(arrayOrString) : define(String(arrayOrString).split(delimiter));\n\n  return obj;\n}\n\nconst noop = () => {}\n\nconst toFiniteNumber = (value, defaultValue) => {\n  return value != null && Number.isFinite(value = +value) ? value : defaultValue;\n}\n\nconst ALPHA = 'abcdefghijklmnopqrstuvwxyz'\n\nconst DIGIT = '0123456789';\n\nconst ALPHABET = {\n  DIGIT,\n  ALPHA,\n  ALPHA_DIGIT: ALPHA + ALPHA.toUpperCase() + DIGIT\n}\n\nconst generateString = (size = 16, alphabet = ALPHABET.ALPHA_DIGIT) => {\n  let str = '';\n  const {length} = alphabet;\n  while (size--) {\n    str += alphabet[Math.random() * length|0]\n  }\n\n  return str;\n}\n\n/**\n * If the thing is a FormData object, return true, otherwise return false.\n *\n * @param {unknown} thing - The thing to check.\n *\n * @returns {boolean}\n */\nfunction isSpecCompliantForm(thing) {\n  return !!(thing && isFunction(thing.append) && thing[Symbol.toStringTag] === 'FormData' && thing[Symbol.iterator]);\n}\n\nconst toJSONObject = (obj) => {\n  const stack = new Array(10);\n\n  const visit = (source, i) => {\n\n    if (isObject(source)) {\n      if (stack.indexOf(source) >= 0) {\n        return;\n      }\n\n      if(!('toJSON' in source)) {\n        stack[i] = source;\n        const target = isArray(source) ? [] : {};\n\n        forEach(source, (value, key) => {\n          const reducedValue = visit(value, i + 1);\n          !isUndefined(reducedValue) && (target[key] = reducedValue);\n        });\n\n        stack[i] = undefined;\n\n        return target;\n      }\n    }\n\n    return source;\n  }\n\n  return visit(obj, 0);\n}\n\nconst isAsyncFn = kindOfTest('AsyncFunction');\n\nconst isThenable = (thing) =>\n  thing && (isObject(thing) || isFunction(thing)) && isFunction(thing.then) && isFunction(thing.catch);\n\n// original code\n// https://github.com/DigitalBrainJS/AxiosPromise/blob/16deab13710ec09779922131f3fa5954320f83ab/lib/utils.js#L11-L34\n\nconst _setImmediate = ((setImmediateSupported, postMessageSupported) => {\n  if (setImmediateSupported) {\n    return setImmediate;\n  }\n\n  return postMessageSupported ? ((token, callbacks) => {\n    _global.addEventListener(\"message\", ({source, data}) => {\n      if (source === _global && data === token) {\n        callbacks.length && callbacks.shift()();\n      }\n    }, false);\n\n    return (cb) => {\n      callbacks.push(cb);\n      _global.postMessage(token, \"*\");\n    }\n  })(`axios@${Math.random()}`, []) : (cb) => setTimeout(cb);\n})(\n  typeof setImmediate === 'function',\n  isFunction(_global.postMessage)\n);\n\nconst asap = typeof queueMicrotask !== 'undefined' ?\n  queueMicrotask.bind(_global) : ( typeof process !== 'undefined' && process.nextTick || _setImmediate);\n\n// *********************\n\nexport default {\n  isArray,\n  isArrayBuffer,\n  isBuffer,\n  isFormData,\n  isArrayBufferView,\n  isString,\n  isNumber,\n  isBoolean,\n  isObject,\n  isPlainObject,\n  isReadableStream,\n  isRequest,\n  isResponse,\n  isHeaders,\n  isUndefined,\n  isDate,\n  isFile,\n  isBlob,\n  isRegExp,\n  isFunction,\n  isStream,\n  isURLSearchParams,\n  isTypedArray,\n  isFileList,\n  forEach,\n  merge,\n  extend,\n  trim,\n  stripBOM,\n  inherits,\n  toFlatObject,\n  kindOf,\n  kindOfTest,\n  endsWith,\n  toArray,\n  forEachEntry,\n  matchAll,\n  isHTMLForm,\n  hasOwnProperty,\n  hasOwnProp: hasOwnProperty, // an alias to avoid ESLint no-prototype-builtins detection\n  reduceDescriptors,\n  freezeMethods,\n  toObjectSet,\n  toCamelCase,\n  noop,\n  toFiniteNumber,\n  findKey,\n  global: _global,\n  isContextDefined,\n  ALPHABET,\n  generateString,\n  isSpecCompliantForm,\n  toJSONObject,\n  isAsyncFn,\n  isThenable,\n  setImmediate: _setImmediate,\n  asap\n};\n","'use strict';\n\nimport utils from '../utils.js';\n\n/**\n * Create an Error with the specified message, config, error code, request and response.\n *\n * @param {string} message The error message.\n * @param {string} [code] The error code (for example, 'ECONNABORTED').\n * @param {Object} [config] The config.\n * @param {Object} [request] The request.\n * @param {Object} [response] The response.\n *\n * @returns {Error} The created error.\n */\nfunction AxiosError(message, code, config, request, response) {\n  Error.call(this);\n\n  if (Error.captureStackTrace) {\n    Error.captureStackTrace(this, this.constructor);\n  } else {\n    this.stack = (new Error()).stack;\n  }\n\n  this.message = message;\n  this.name = 'AxiosError';\n  code && (this.code = code);\n  config && (this.config = config);\n  request && (this.request = request);\n  if (response) {\n    this.response = response;\n    this.status = response.status ? response.status : null;\n  }\n}\n\nutils.inherits(AxiosError, Error, {\n  toJSON: function toJSON() {\n    return {\n      // Standard\n      message: this.message,\n      name: this.name,\n      // Microsoft\n      description: this.description,\n      number: this.number,\n      // Mozilla\n      fileName: this.fileName,\n      lineNumber: this.lineNumber,\n      columnNumber: this.columnNumber,\n      stack: this.stack,\n      // Axios\n      config: utils.toJSONObject(this.config),\n      code: this.code,\n      status: this.status\n    };\n  }\n});\n\nconst prototype = AxiosError.prototype;\nconst descriptors = {};\n\n[\n  'ERR_BAD_OPTION_VALUE',\n  'ERR_BAD_OPTION',\n  'ECONNABORTED',\n  'ETIMEDOUT',\n  'ERR_NETWORK',\n  'ERR_FR_TOO_MANY_REDIRECTS',\n  'ERR_DEPRECATED',\n  'ERR_BAD_RESPONSE',\n  'ERR_BAD_REQUEST',\n  'ERR_CANCELED',\n  'ERR_NOT_SUPPORT',\n  'ERR_INVALID_URL'\n// eslint-disable-next-line func-names\n].forEach(code => {\n  descriptors[code] = {value: code};\n});\n\nObject.defineProperties(AxiosError, descriptors);\nObject.defineProperty(prototype, 'isAxiosError', {value: true});\n\n// eslint-disable-next-line func-names\nAxiosError.from = (error, code, config, request, response, customProps) => {\n  const axiosError = Object.create(prototype);\n\n  utils.toFlatObject(error, axiosError, function filter(obj) {\n    return obj !== Error.prototype;\n  }, prop => {\n    return prop !== 'isAxiosError';\n  });\n\n  AxiosError.call(axiosError, error.message, code, config, request, response);\n\n  axiosError.cause = error;\n\n  axiosError.name = error.name;\n\n  customProps && Object.assign(axiosError, customProps);\n\n  return axiosError;\n};\n\nexport default AxiosError;\n","// eslint-disable-next-line strict\nexport default null;\n","'use strict';\n\nimport utils from '../utils.js';\nimport AxiosError from '../core/AxiosError.js';\n// temporary hotfix to avoid circular references until AxiosURLSearchParams is refactored\nimport PlatformFormData from '../platform/node/classes/FormData.js';\n\n/**\n * Determines if the given thing is a array or js object.\n *\n * @param {string} thing - The object or array to be visited.\n *\n * @returns {boolean}\n */\nfunction isVisitable(thing) {\n  return utils.isPlainObject(thing) || utils.isArray(thing);\n}\n\n/**\n * It removes the brackets from the end of a string\n *\n * @param {string} key - The key of the parameter.\n *\n * @returns {string} the key without the brackets.\n */\nfunction removeBrackets(key) {\n  return utils.endsWith(key, '[]') ? key.slice(0, -2) : key;\n}\n\n/**\n * It takes a path, a key, and a boolean, and returns a string\n *\n * @param {string} path - The path to the current key.\n * @param {string} key - The key of the current object being iterated over.\n * @param {string} dots - If true, the key will be rendered with dots instead of brackets.\n *\n * @returns {string} The path to the current key.\n */\nfunction renderKey(path, key, dots) {\n  if (!path) return key;\n  return path.concat(key).map(function each(token, i) {\n    // eslint-disable-next-line no-param-reassign\n    token = removeBrackets(token);\n    return !dots && i ? '[' + token + ']' : token;\n  }).join(dots ? '.' : '');\n}\n\n/**\n * If the array is an array and none of its elements are visitable, then it's a flat array.\n *\n * @param {Array<any>} arr - The array to check\n *\n * @returns {boolean}\n */\nfunction isFlatArray(arr) {\n  return utils.isArray(arr) && !arr.some(isVisitable);\n}\n\nconst predicates = utils.toFlatObject(utils, {}, null, function filter(prop) {\n  return /^is[A-Z]/.test(prop);\n});\n\n/**\n * Convert a data object to FormData\n *\n * @param {Object} obj\n * @param {?Object} [formData]\n * @param {?Object} [options]\n * @param {Function} [options.visitor]\n * @param {Boolean} [options.metaTokens = true]\n * @param {Boolean} [options.dots = false]\n * @param {?Boolean} [options.indexes = false]\n *\n * @returns {Object}\n **/\n\n/**\n * It converts an object into a FormData object\n *\n * @param {Object<any, any>} obj - The object to convert to form data.\n * @param {string} formData - The FormData object to append to.\n * @param {Object<string, any>} options\n *\n * @returns\n */\nfunction toFormData(obj, formData, options) {\n  if (!utils.isObject(obj)) {\n    throw new TypeError('target must be an object');\n  }\n\n  // eslint-disable-next-line no-param-reassign\n  formData = formData || new (PlatformFormData || FormData)();\n\n  // eslint-disable-next-line no-param-reassign\n  options = utils.toFlatObject(options, {\n    metaTokens: true,\n    dots: false,\n    indexes: false\n  }, false, function defined(option, source) {\n    // eslint-disable-next-line no-eq-null,eqeqeq\n    return !utils.isUndefined(source[option]);\n  });\n\n  const metaTokens = options.metaTokens;\n  // eslint-disable-next-line no-use-before-define\n  const visitor = options.visitor || defaultVisitor;\n  const dots = options.dots;\n  const indexes = options.indexes;\n  const _Blob = options.Blob || typeof Blob !== 'undefined' && Blob;\n  const useBlob = _Blob && utils.isSpecCompliantForm(formData);\n\n  if (!utils.isFunction(visitor)) {\n    throw new TypeError('visitor must be a function');\n  }\n\n  function convertValue(value) {\n    if (value === null) return '';\n\n    if (utils.isDate(value)) {\n      return value.toISOString();\n    }\n\n    if (!useBlob && utils.isBlob(value)) {\n      throw new AxiosError('Blob is not supported. Use a Buffer instead.');\n    }\n\n    if (utils.isArrayBuffer(value) || utils.isTypedArray(value)) {\n      return useBlob && typeof Blob === 'function' ? new Blob([value]) : Buffer.from(value);\n    }\n\n    return value;\n  }\n\n  /**\n   * Default visitor.\n   *\n   * @param {*} value\n   * @param {String|Number} key\n   * @param {Array<String|Number>} path\n   * @this {FormData}\n   *\n   * @returns {boolean} return true to visit the each prop of the value recursively\n   */\n  function defaultVisitor(value, key, path) {\n    let arr = value;\n\n    if (value && !path && typeof value === 'object') {\n      if (utils.endsWith(key, '{}')) {\n        // eslint-disable-next-line no-param-reassign\n        key = metaTokens ? key : key.slice(0, -2);\n        // eslint-disable-next-line no-param-reassign\n        value = JSON.stringify(value);\n      } else if (\n        (utils.isArray(value) && isFlatArray(value)) ||\n        ((utils.isFileList(value) || utils.endsWith(key, '[]')) && (arr = utils.toArray(value))\n        )) {\n        // eslint-disable-next-line no-param-reassign\n        key = removeBrackets(key);\n\n        arr.forEach(function each(el, index) {\n          !(utils.isUndefined(el) || el === null) && formData.append(\n            // eslint-disable-next-line no-nested-ternary\n            indexes === true ? renderKey([key], index, dots) : (indexes === null ? key : key + '[]'),\n            convertValue(el)\n          );\n        });\n        return false;\n      }\n    }\n\n    if (isVisitable(value)) {\n      return true;\n    }\n\n    formData.append(renderKey(path, key, dots), convertValue(value));\n\n    return false;\n  }\n\n  const stack = [];\n\n  const exposedHelpers = Object.assign(predicates, {\n    defaultVisitor,\n    convertValue,\n    isVisitable\n  });\n\n  function build(value, path) {\n    if (utils.isUndefined(value)) return;\n\n    if (stack.indexOf(value) !== -1) {\n      throw Error('Circular reference detected in ' + path.join('.'));\n    }\n\n    stack.push(value);\n\n    utils.forEach(value, function each(el, key) {\n      const result = !(utils.isUndefined(el) || el === null) && visitor.call(\n        formData, el, utils.isString(key) ? key.trim() : key, path, exposedHelpers\n      );\n\n      if (result === true) {\n        build(el, path ? path.concat(key) : [key]);\n      }\n    });\n\n    stack.pop();\n  }\n\n  if (!utils.isObject(obj)) {\n    throw new TypeError('data must be an object');\n  }\n\n  build(obj);\n\n  return formData;\n}\n\nexport default toFormData;\n","'use strict';\n\nimport toFormData from './toFormData.js';\n\n/**\n * It encodes a string by replacing all characters that are not in the unreserved set with\n * their percent-encoded equivalents\n *\n * @param {string} str - The string to encode.\n *\n * @returns {string} The encoded string.\n */\nfunction encode(str) {\n  const charMap = {\n    '!': '%21',\n    \"'\": '%27',\n    '(': '%28',\n    ')': '%29',\n    '~': '%7E',\n    '%20': '+',\n    '%00': '\\x00'\n  };\n  return encodeURIComponent(str).replace(/[!'()~]|%20|%00/g, function replacer(match) {\n    return charMap[match];\n  });\n}\n\n/**\n * It takes a params object and converts it to a FormData object\n *\n * @param {Object<string, any>} params - The parameters to be converted to a FormData object.\n * @param {Object<string, any>} options - The options object passed to the Axios constructor.\n *\n * @returns {void}\n */\nfunction AxiosURLSearchParams(params, options) {\n  this._pairs = [];\n\n  params && toFormData(params, this, options);\n}\n\nconst prototype = AxiosURLSearchParams.prototype;\n\nprototype.append = function append(name, value) {\n  this._pairs.push([name, value]);\n};\n\nprototype.toString = function toString(encoder) {\n  const _encode = encoder ? function(value) {\n    return encoder.call(this, value, encode);\n  } : encode;\n\n  return this._pairs.map(function each(pair) {\n    return _encode(pair[0]) + '=' + _encode(pair[1]);\n  }, '').join('&');\n};\n\nexport default AxiosURLSearchParams;\n","'use strict';\n\nimport utils from '../utils.js';\nimport AxiosURLSearchParams from '../helpers/AxiosURLSearchParams.js';\n\n/**\n * It replaces all instances of the characters `:`, `$`, `,`, `+`, `[`, and `]` with their\n * URI encoded counterparts\n *\n * @param {string} val The value to be encoded.\n *\n * @returns {string} The encoded value.\n */\nfunction encode(val) {\n  return encodeURIComponent(val).\n    replace(/%3A/gi, ':').\n    replace(/%24/g, '$').\n    replace(/%2C/gi, ',').\n    replace(/%20/g, '+').\n    replace(/%5B/gi, '[').\n    replace(/%5D/gi, ']');\n}\n\n/**\n * Build a URL by appending params to the end\n *\n * @param {string} url The base of the url (e.g., http://www.google.com)\n * @param {object} [params] The params to be appended\n * @param {?(object|Function)} options\n *\n * @returns {string} The formatted url\n */\nexport default function buildURL(url, params, options) {\n  /*eslint no-param-reassign:0*/\n  if (!params) {\n    return url;\n  }\n  \n  const _encode = options && options.encode || encode;\n\n  if (utils.isFunction(options)) {\n    options = {\n      serialize: options\n    };\n  } \n\n  const serializeFn = options && options.serialize;\n\n  let serializedParams;\n\n  if (serializeFn) {\n    serializedParams = serializeFn(params, options);\n  } else {\n    serializedParams = utils.isURLSearchParams(params) ?\n      params.toString() :\n      new AxiosURLSearchParams(params, options).toString(_encode);\n  }\n\n  if (serializedParams) {\n    const hashmarkIndex = url.indexOf(\"#\");\n\n    if (hashmarkIndex !== -1) {\n      url = url.slice(0, hashmarkIndex);\n    }\n    url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;\n  }\n\n  return url;\n}\n","'use strict';\n\nimport utils from './../utils.js';\n\nclass InterceptorManager {\n  constructor() {\n    this.handlers = [];\n  }\n\n  /**\n   * Add a new interceptor to the stack\n   *\n   * @param {Function} fulfilled The function to handle `then` for a `Promise`\n   * @param {Function} rejected The function to handle `reject` for a `Promise`\n   *\n   * @return {Number} An ID used to remove interceptor later\n   */\n  use(fulfilled, rejected, options) {\n    this.handlers.push({\n      fulfilled,\n      rejected,\n      synchronous: options ? options.synchronous : false,\n      runWhen: options ? options.runWhen : null\n    });\n    return this.handlers.length - 1;\n  }\n\n  /**\n   * Remove an interceptor from the stack\n   *\n   * @param {Number} id The ID that was returned by `use`\n   *\n   * @returns {Boolean} `true` if the interceptor was removed, `false` otherwise\n   */\n  eject(id) {\n    if (this.handlers[id]) {\n      this.handlers[id] = null;\n    }\n  }\n\n  /**\n   * Clear all interceptors from the stack\n   *\n   * @returns {void}\n   */\n  clear() {\n    if (this.handlers) {\n      this.handlers = [];\n    }\n  }\n\n  /**\n   * Iterate over all the registered interceptors\n   *\n   * This method is particularly useful for skipping over any\n   * interceptors that may have become `null` calling `eject`.\n   *\n   * @param {Function} fn The function to call for each interceptor\n   *\n   * @returns {void}\n   */\n  forEach(fn) {\n    utils.forEach(this.handlers, function forEachHandler(h) {\n      if (h !== null) {\n        fn(h);\n      }\n    });\n  }\n}\n\nexport default InterceptorManager;\n","'use strict';\n\nexport default {\n  silentJSONParsing: true,\n  forcedJSONParsing: true,\n  clarifyTimeoutError: false\n};\n","'use strict';\n\nimport AxiosURLSearchParams from '../../../helpers/AxiosURLSearchParams.js';\nexport default typeof URLSearchParams !== 'undefined' ? URLSearchParams : AxiosURLSearchParams;\n","'use strict';\n\nexport default typeof FormData !== 'undefined' ? FormData : null;\n","'use strict'\n\nexport default typeof Blob !== 'undefined' ? Blob : null\n","import URLSearchParams from './classes/URLSearchParams.js'\nimport FormData from './classes/FormData.js'\nimport Blob from './classes/Blob.js'\n\nexport default {\n  isBrowser: true,\n  classes: {\n    URLSearchParams,\n    FormData,\n    Blob\n  },\n  protocols: ['http', 'https', 'file', 'blob', 'url', 'data']\n};\n","const hasBrowserEnv = typeof window !== 'undefined' && typeof document !== 'undefined';\n\nconst _navigator = typeof navigator === 'object' && navigator || undefined;\n\n/**\n * Determine if we're running in a standard browser environment\n *\n * This allows axios to run in a web worker, and react-native.\n * Both environments support XMLHttpRequest, but not fully standard globals.\n *\n * web workers:\n *  typeof window -> undefined\n *  typeof document -> undefined\n *\n * react-native:\n *  navigator.product -> 'ReactNative'\n * nativescript\n *  navigator.product -> 'NativeScript' or 'NS'\n *\n * @returns {boolean}\n */\nconst hasStandardBrowserEnv = hasBrowserEnv &&\n  (!_navigator || ['ReactNative', 'NativeScript', 'NS'].indexOf(_navigator.product) < 0);\n\n/**\n * Determine if we're running in a standard browser webWorker environment\n *\n * Although the `isStandardBrowserEnv` method indicates that\n * `allows axios to run in a web worker`, the WebWorker will still be\n * filtered out due to its judgment standard\n * `typeof window !== 'undefined' && typeof document !== 'undefined'`.\n * This leads to a problem when axios post `FormData` in webWorker\n */\nconst hasStandardBrowserWebWorkerEnv = (() => {\n  return (\n    typeof WorkerGlobalScope !== 'undefined' &&\n    // eslint-disable-next-line no-undef\n    self instanceof WorkerGlobalScope &&\n    typeof self.importScripts === 'function'\n  );\n})();\n\nconst origin = hasBrowserEnv && window.location.href || 'http://localhost';\n\nexport {\n  hasBrowserEnv,\n  hasStandardBrowserWebWorkerEnv,\n  hasStandardBrowserEnv,\n  _navigator as navigator,\n  origin\n}\n","import platform from './node/index.js';\nimport * as utils from './common/utils.js';\n\nexport default {\n  ...utils,\n  ...platform\n}\n","'use strict';\n\nimport utils from '../utils.js';\nimport toFormData from './toFormData.js';\nimport platform from '../platform/index.js';\n\nexport default function toURLEncodedForm(data, options) {\n  return toFormData(data, new platform.classes.URLSearchParams(), Object.assign({\n    visitor: function(value, key, path, helpers) {\n      if (platform.isNode && utils.isBuffer(value)) {\n        this.append(key, value.toString('base64'));\n        return false;\n      }\n\n      return helpers.defaultVisitor.apply(this, arguments);\n    }\n  }, options));\n}\n","'use strict';\n\nimport utils from '../utils.js';\n\n/**\n * It takes a string like `foo[x][y][z]` and returns an array like `['foo', 'x', 'y', 'z']\n *\n * @param {string} name - The name of the property to get.\n *\n * @returns An array of strings.\n */\nfunction parsePropPath(name) {\n  // foo[x][y][z]\n  // foo.x.y.z\n  // foo-x-y-z\n  // foo x y z\n  return utils.matchAll(/\\w+|\\[(\\w*)]/g, name).map(match => {\n    return match[0] === '[]' ? '' : match[1] || match[0];\n  });\n}\n\n/**\n * Convert an array to an object.\n *\n * @param {Array<any>} arr - The array to convert to an object.\n *\n * @returns An object with the same keys and values as the array.\n */\nfunction arrayToObject(arr) {\n  const obj = {};\n  const keys = Object.keys(arr);\n  let i;\n  const len = keys.length;\n  let key;\n  for (i = 0; i < len; i++) {\n    key = keys[i];\n    obj[key] = arr[key];\n  }\n  return obj;\n}\n\n/**\n * It takes a FormData object and returns a JavaScript object\n *\n * @param {string} formData The FormData object to convert to JSON.\n *\n * @returns {Object<string, any> | null} The converted object.\n */\nfunction formDataToJSON(formData) {\n  function buildPath(path, value, target, index) {\n    let name = path[index++];\n\n    if (name === '__proto__') return true;\n\n    const isNumericKey = Number.isFinite(+name);\n    const isLast = index >= path.length;\n    name = !name && utils.isArray(target) ? target.length : name;\n\n    if (isLast) {\n      if (utils.hasOwnProp(target, name)) {\n        target[name] = [target[name], value];\n      } else {\n        target[name] = value;\n      }\n\n      return !isNumericKey;\n    }\n\n    if (!target[name] || !utils.isObject(target[name])) {\n      target[name] = [];\n    }\n\n    const result = buildPath(path, value, target[name], index);\n\n    if (result && utils.isArray(target[name])) {\n      target[name] = arrayToObject(target[name]);\n    }\n\n    return !isNumericKey;\n  }\n\n  if (utils.isFormData(formData) && utils.isFunction(formData.entries)) {\n    const obj = {};\n\n    utils.forEachEntry(formData, (name, value) => {\n      buildPath(parsePropPath(name), value, obj, 0);\n    });\n\n    return obj;\n  }\n\n  return null;\n}\n\nexport default formDataToJSON;\n","'use strict';\n\nimport utils from '../utils.js';\nimport AxiosError from '../core/AxiosError.js';\nimport transitionalDefaults from './transitional.js';\nimport toFormData from '../helpers/toFormData.js';\nimport toURLEncodedForm from '../helpers/toURLEncodedForm.js';\nimport platform from '../platform/index.js';\nimport formDataToJSON from '../helpers/formDataToJSON.js';\n\n/**\n * It takes a string, tries to parse it, and if it fails, it returns the stringified version\n * of the input\n *\n * @param {any} rawValue - The value to be stringified.\n * @param {Function} parser - A function that parses a string into a JavaScript object.\n * @param {Function} encoder - A function that takes a value and returns a string.\n *\n * @returns {string} A stringified version of the rawValue.\n */\nfunction stringifySafely(rawValue, parser, encoder) {\n  if (utils.isString(rawValue)) {\n    try {\n      (parser || JSON.parse)(rawValue);\n      return utils.trim(rawValue);\n    } catch (e) {\n      if (e.name !== 'SyntaxError') {\n        throw e;\n      }\n    }\n  }\n\n  return (encoder || JSON.stringify)(rawValue);\n}\n\nconst defaults = {\n\n  transitional: transitionalDefaults,\n\n  adapter: ['xhr', 'http', 'fetch'],\n\n  transformRequest: [function transformRequest(data, headers) {\n    const contentType = headers.getContentType() || '';\n    const hasJSONContentType = contentType.indexOf('application/json') > -1;\n    const isObjectPayload = utils.isObject(data);\n\n    if (isObjectPayload && utils.isHTMLForm(data)) {\n      data = new FormData(data);\n    }\n\n    const isFormData = utils.isFormData(data);\n\n    if (isFormData) {\n      return hasJSONContentType ? JSON.stringify(formDataToJSON(data)) : data;\n    }\n\n    if (utils.isArrayBuffer(data) ||\n      utils.isBuffer(data) ||\n      utils.isStream(data) ||\n      utils.isFile(data) ||\n      utils.isBlob(data) ||\n      utils.isReadableStream(data)\n    ) {\n      return data;\n    }\n    if (utils.isArrayBufferView(data)) {\n      return data.buffer;\n    }\n    if (utils.isURLSearchParams(data)) {\n      headers.setContentType('application/x-www-form-urlencoded;charset=utf-8', false);\n      return data.toString();\n    }\n\n    let isFileList;\n\n    if (isObjectPayload) {\n      if (contentType.indexOf('application/x-www-form-urlencoded') > -1) {\n        return toURLEncodedForm(data, this.formSerializer).toString();\n      }\n\n      if ((isFileList = utils.isFileList(data)) || contentType.indexOf('multipart/form-data') > -1) {\n        const _FormData = this.env && this.env.FormData;\n\n        return toFormData(\n          isFileList ? {'files[]': data} : data,\n          _FormData && new _FormData(),\n          this.formSerializer\n        );\n      }\n    }\n\n    if (isObjectPayload || hasJSONContentType ) {\n      headers.setContentType('application/json', false);\n      return stringifySafely(data);\n    }\n\n    return data;\n  }],\n\n  transformResponse: [function transformResponse(data) {\n    const transitional = this.transitional || defaults.transitional;\n    const forcedJSONParsing = transitional && transitional.forcedJSONParsing;\n    const JSONRequested = this.responseType === 'json';\n\n    if (utils.isResponse(data) || utils.isReadableStream(data)) {\n      return data;\n    }\n\n    if (data && utils.isString(data) && ((forcedJSONParsing && !this.responseType) || JSONRequested)) {\n      const silentJSONParsing = transitional && transitional.silentJSONParsing;\n      const strictJSONParsing = !silentJSONParsing && JSONRequested;\n\n      try {\n        return JSON.parse(data);\n      } catch (e) {\n        if (strictJSONParsing) {\n          if (e.name === 'SyntaxError') {\n            throw AxiosError.from(e, AxiosError.ERR_BAD_RESPONSE, this, null, this.response);\n          }\n          throw e;\n        }\n      }\n    }\n\n    return data;\n  }],\n\n  /**\n   * A timeout in milliseconds to abort a request. If set to 0 (default) a\n   * timeout is not created.\n   */\n  timeout: 0,\n\n  xsrfCookieName: 'XSRF-TOKEN',\n  xsrfHeaderName: 'X-XSRF-TOKEN',\n\n  maxContentLength: -1,\n  maxBodyLength: -1,\n\n  env: {\n    FormData: platform.classes.FormData,\n    Blob: platform.classes.Blob\n  },\n\n  validateStatus: function validateStatus(status) {\n    return status >= 200 && status < 300;\n  },\n\n  headers: {\n    common: {\n      'Accept': 'application/json, text/plain, */*',\n      'Content-Type': undefined\n    }\n  }\n};\n\nutils.forEach(['delete', 'get', 'head', 'post', 'put', 'patch'], (method) => {\n  defaults.headers[method] = {};\n});\n\nexport default defaults;\n","'use strict';\n\nimport utils from './../utils.js';\n\n// RawAxiosHeaders whose duplicates are ignored by node\n// c.f. https://nodejs.org/api/http.html#http_message_headers\nconst ignoreDuplicateOf = utils.toObjectSet([\n  'age', 'authorization', 'content-length', 'content-type', 'etag',\n  'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since',\n  'last-modified', 'location', 'max-forwards', 'proxy-authorization',\n  'referer', 'retry-after', 'user-agent'\n]);\n\n/**\n * Parse headers into an object\n *\n * ```\n * Date: Wed, 27 Aug 2014 08:58:49 GMT\n * Content-Type: application/json\n * Connection: keep-alive\n * Transfer-Encoding: chunked\n * ```\n *\n * @param {String} rawHeaders Headers needing to be parsed\n *\n * @returns {Object} Headers parsed into an object\n */\nexport default rawHeaders => {\n  const parsed = {};\n  let key;\n  let val;\n  let i;\n\n  rawHeaders && rawHeaders.split('\\n').forEach(function parser(line) {\n    i = line.indexOf(':');\n    key = line.substring(0, i).trim().toLowerCase();\n    val = line.substring(i + 1).trim();\n\n    if (!key || (parsed[key] && ignoreDuplicateOf[key])) {\n      return;\n    }\n\n    if (key === 'set-cookie') {\n      if (parsed[key]) {\n        parsed[key].push(val);\n      } else {\n        parsed[key] = [val];\n      }\n    } else {\n      parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;\n    }\n  });\n\n  return parsed;\n};\n","'use strict';\n\nimport utils from '../utils.js';\nimport parseHeaders from '../helpers/parseHeaders.js';\n\nconst $internals = Symbol('internals');\n\nfunction normalizeHeader(header) {\n  return header && String(header).trim().toLowerCase();\n}\n\nfunction normalizeValue(value) {\n  if (value === false || value == null) {\n    return value;\n  }\n\n  return utils.isArray(value) ? value.map(normalizeValue) : String(value);\n}\n\nfunction parseTokens(str) {\n  const tokens = Object.create(null);\n  const tokensRE = /([^\\s,;=]+)\\s*(?:=\\s*([^,;]+))?/g;\n  let match;\n\n  while ((match = tokensRE.exec(str))) {\n    tokens[match[1]] = match[2];\n  }\n\n  return tokens;\n}\n\nconst isValidHeaderName = (str) => /^[-_a-zA-Z0-9^`|~,!#$%&'*+.]+$/.test(str.trim());\n\nfunction matchHeaderValue(context, value, header, filter, isHeaderNameFilter) {\n  if (utils.isFunction(filter)) {\n    return filter.call(this, value, header);\n  }\n\n  if (isHeaderNameFilter) {\n    value = header;\n  }\n\n  if (!utils.isString(value)) return;\n\n  if (utils.isString(filter)) {\n    return value.indexOf(filter) !== -1;\n  }\n\n  if (utils.isRegExp(filter)) {\n    return filter.test(value);\n  }\n}\n\nfunction formatHeader(header) {\n  return header.trim()\n    .toLowerCase().replace(/([a-z\\d])(\\w*)/g, (w, char, str) => {\n      return char.toUpperCase() + str;\n    });\n}\n\nfunction buildAccessors(obj, header) {\n  const accessorName = utils.toCamelCase(' ' + header);\n\n  ['get', 'set', 'has'].forEach(methodName => {\n    Object.defineProperty(obj, methodName + accessorName, {\n      value: function(arg1, arg2, arg3) {\n        return this[methodName].call(this, header, arg1, arg2, arg3);\n      },\n      configurable: true\n    });\n  });\n}\n\nclass AxiosHeaders {\n  constructor(headers) {\n    headers && this.set(headers);\n  }\n\n  set(header, valueOrRewrite, rewrite) {\n    const self = this;\n\n    function setHeader(_value, _header, _rewrite) {\n      const lHeader = normalizeHeader(_header);\n\n      if (!lHeader) {\n        throw new Error('header name must be a non-empty string');\n      }\n\n      const key = utils.findKey(self, lHeader);\n\n      if(!key || self[key] === undefined || _rewrite === true || (_rewrite === undefined && self[key] !== false)) {\n        self[key || _header] = normalizeValue(_value);\n      }\n    }\n\n    const setHeaders = (headers, _rewrite) =>\n      utils.forEach(headers, (_value, _header) => setHeader(_value, _header, _rewrite));\n\n    if (utils.isPlainObject(header) || header instanceof this.constructor) {\n      setHeaders(header, valueOrRewrite)\n    } else if(utils.isString(header) && (header = header.trim()) && !isValidHeaderName(header)) {\n      setHeaders(parseHeaders(header), valueOrRewrite);\n    } else if (utils.isHeaders(header)) {\n      for (const [key, value] of header.entries()) {\n        setHeader(value, key, rewrite);\n      }\n    } else {\n      header != null && setHeader(valueOrRewrite, header, rewrite);\n    }\n\n    return this;\n  }\n\n  get(header, parser) {\n    header = normalizeHeader(header);\n\n    if (header) {\n      const key = utils.findKey(this, header);\n\n      if (key) {\n        const value = this[key];\n\n        if (!parser) {\n          return value;\n        }\n\n        if (parser === true) {\n          return parseTokens(value);\n        }\n\n        if (utils.isFunction(parser)) {\n          return parser.call(this, value, key);\n        }\n\n        if (utils.isRegExp(parser)) {\n          return parser.exec(value);\n        }\n\n        throw new TypeError('parser must be boolean|regexp|function');\n      }\n    }\n  }\n\n  has(header, matcher) {\n    header = normalizeHeader(header);\n\n    if (header) {\n      const key = utils.findKey(this, header);\n\n      return !!(key && this[key] !== undefined && (!matcher || matchHeaderValue(this, this[key], key, matcher)));\n    }\n\n    return false;\n  }\n\n  delete(header, matcher) {\n    const self = this;\n    let deleted = false;\n\n    function deleteHeader(_header) {\n      _header = normalizeHeader(_header);\n\n      if (_header) {\n        const key = utils.findKey(self, _header);\n\n        if (key && (!matcher || matchHeaderValue(self, self[key], key, matcher))) {\n          delete self[key];\n\n          deleted = true;\n        }\n      }\n    }\n\n    if (utils.isArray(header)) {\n      header.forEach(deleteHeader);\n    } else {\n      deleteHeader(header);\n    }\n\n    return deleted;\n  }\n\n  clear(matcher) {\n    const keys = Object.keys(this);\n    let i = keys.length;\n    let deleted = false;\n\n    while (i--) {\n      const key = keys[i];\n      if(!matcher || matchHeaderValue(this, this[key], key, matcher, true)) {\n        delete this[key];\n        deleted = true;\n      }\n    }\n\n    return deleted;\n  }\n\n  normalize(format) {\n    const self = this;\n    const headers = {};\n\n    utils.forEach(this, (value, header) => {\n      const key = utils.findKey(headers, header);\n\n      if (key) {\n        self[key] = normalizeValue(value);\n        delete self[header];\n        return;\n      }\n\n      const normalized = format ? formatHeader(header) : String(header).trim();\n\n      if (normalized !== header) {\n        delete self[header];\n      }\n\n      self[normalized] = normalizeValue(value);\n\n      headers[normalized] = true;\n    });\n\n    return this;\n  }\n\n  concat(...targets) {\n    return this.constructor.concat(this, ...targets);\n  }\n\n  toJSON(asStrings) {\n    const obj = Object.create(null);\n\n    utils.forEach(this, (value, header) => {\n      value != null && value !== false && (obj[header] = asStrings && utils.isArray(value) ? value.join(', ') : value);\n    });\n\n    return obj;\n  }\n\n  [Symbol.iterator]() {\n    return Object.entries(this.toJSON())[Symbol.iterator]();\n  }\n\n  toString() {\n    return Object.entries(this.toJSON()).map(([header, value]) => header + ': ' + value).join('\\n');\n  }\n\n  get [Symbol.toStringTag]() {\n    return 'AxiosHeaders';\n  }\n\n  static from(thing) {\n    return thing instanceof this ? thing : new this(thing);\n  }\n\n  static concat(first, ...targets) {\n    const computed = new this(first);\n\n    targets.forEach((target) => computed.set(target));\n\n    return computed;\n  }\n\n  static accessor(header) {\n    const internals = this[$internals] = (this[$internals] = {\n      accessors: {}\n    });\n\n    const accessors = internals.accessors;\n    const prototype = this.prototype;\n\n    function defineAccessor(_header) {\n      const lHeader = normalizeHeader(_header);\n\n      if (!accessors[lHeader]) {\n        buildAccessors(prototype, _header);\n        accessors[lHeader] = true;\n      }\n    }\n\n    utils.isArray(header) ? header.forEach(defineAccessor) : defineAccessor(header);\n\n    return this;\n  }\n}\n\nAxiosHeaders.accessor(['Content-Type', 'Content-Length', 'Accept', 'Accept-Encoding', 'User-Agent', 'Authorization']);\n\n// reserved names hotfix\nutils.reduceDescriptors(AxiosHeaders.prototype, ({value}, key) => {\n  let mapped = key[0].toUpperCase() + key.slice(1); // map `set` => `Set`\n  return {\n    get: () => value,\n    set(headerValue) {\n      this[mapped] = headerValue;\n    }\n  }\n});\n\nutils.freezeMethods(AxiosHeaders);\n\nexport default AxiosHeaders;\n","'use strict';\n\nimport utils from './../utils.js';\nimport defaults from '../defaults/index.js';\nimport AxiosHeaders from '../core/AxiosHeaders.js';\n\n/**\n * Transform the data for a request or a response\n *\n * @param {Array|Function} fns A single function or Array of functions\n * @param {?Object} response The response object\n *\n * @returns {*} The resulting transformed data\n */\nexport default function transformData(fns, response) {\n  const config = this || defaults;\n  const context = response || config;\n  const headers = AxiosHeaders.from(context.headers);\n  let data = context.data;\n\n  utils.forEach(fns, function transform(fn) {\n    data = fn.call(config, data, headers.normalize(), response ? response.status : undefined);\n  });\n\n  headers.normalize();\n\n  return data;\n}\n","'use strict';\n\nexport default function isCancel(value) {\n  return !!(value && value.__CANCEL__);\n}\n","'use strict';\n\nimport AxiosError from '../core/AxiosError.js';\nimport utils from '../utils.js';\n\n/**\n * A `CanceledError` is an object that is thrown when an operation is canceled.\n *\n * @param {string=} message The message.\n * @param {Object=} config The config.\n * @param {Object=} request The request.\n *\n * @returns {CanceledError} The created error.\n */\nfunction CanceledError(message, config, request) {\n  // eslint-disable-next-line no-eq-null,eqeqeq\n  AxiosError.call(this, message == null ? 'canceled' : message, AxiosError.ERR_CANCELED, config, request);\n  this.name = 'CanceledError';\n}\n\nutils.inherits(CanceledError, AxiosError, {\n  __CANCEL__: true\n});\n\nexport default CanceledError;\n","'use strict';\n\nimport AxiosError from './AxiosError.js';\n\n/**\n * Resolve or reject a Promise based on response status.\n *\n * @param {Function} resolve A function that resolves the promise.\n * @param {Function} reject A function that rejects the promise.\n * @param {object} response The response.\n *\n * @returns {object} The response.\n */\nexport default function settle(resolve, reject, response) {\n  const validateStatus = response.config.validateStatus;\n  if (!response.status || !validateStatus || validateStatus(response.status)) {\n    resolve(response);\n  } else {\n    reject(new AxiosError(\n      'Request failed with status code ' + response.status,\n      [AxiosError.ERR_BAD_REQUEST, AxiosError.ERR_BAD_RESPONSE][Math.floor(response.status / 100) - 4],\n      response.config,\n      response.request,\n      response\n    ));\n  }\n}\n","'use strict';\n\nexport default function parseProtocol(url) {\n  const match = /^([-+\\w]{1,25})(:?\\/\\/|:)/.exec(url);\n  return match && match[1] || '';\n}\n","'use strict';\n\n/**\n * Calculate data maxRate\n * @param {Number} [samplesCount= 10]\n * @param {Number} [min= 1000]\n * @returns {Function}\n */\nfunction speedometer(samplesCount, min) {\n  samplesCount = samplesCount || 10;\n  const bytes = new Array(samplesCount);\n  const timestamps = new Array(samplesCount);\n  let head = 0;\n  let tail = 0;\n  let firstSampleTS;\n\n  min = min !== undefined ? min : 1000;\n\n  return function push(chunkLength) {\n    const now = Date.now();\n\n    const startedAt = timestamps[tail];\n\n    if (!firstSampleTS) {\n      firstSampleTS = now;\n    }\n\n    bytes[head] = chunkLength;\n    timestamps[head] = now;\n\n    let i = tail;\n    let bytesCount = 0;\n\n    while (i !== head) {\n      bytesCount += bytes[i++];\n      i = i % samplesCount;\n    }\n\n    head = (head + 1) % samplesCount;\n\n    if (head === tail) {\n      tail = (tail + 1) % samplesCount;\n    }\n\n    if (now - firstSampleTS < min) {\n      return;\n    }\n\n    const passed = startedAt && now - startedAt;\n\n    return passed ? Math.round(bytesCount * 1000 / passed) : undefined;\n  };\n}\n\nexport default speedometer;\n","/**\n * Throttle decorator\n * @param {Function} fn\n * @param {Number} freq\n * @return {Function}\n */\nfunction throttle(fn, freq) {\n  let timestamp = 0;\n  let threshold = 1000 / freq;\n  let lastArgs;\n  let timer;\n\n  const invoke = (args, now = Date.now()) => {\n    timestamp = now;\n    lastArgs = null;\n    if (timer) {\n      clearTimeout(timer);\n      timer = null;\n    }\n    fn.apply(null, args);\n  }\n\n  const throttled = (...args) => {\n    const now = Date.now();\n    const passed = now - timestamp;\n    if ( passed >= threshold) {\n      invoke(args, now);\n    } else {\n      lastArgs = args;\n      if (!timer) {\n        timer = setTimeout(() => {\n          timer = null;\n          invoke(lastArgs)\n        }, threshold - passed);\n      }\n    }\n  }\n\n  const flush = () => lastArgs && invoke(lastArgs);\n\n  return [throttled, flush];\n}\n\nexport default throttle;\n","import speedometer from \"./speedometer.js\";\nimport throttle from \"./throttle.js\";\nimport utils from \"../utils.js\";\n\nexport const progressEventReducer = (listener, isDownloadStream, freq = 3) => {\n  let bytesNotified = 0;\n  const _speedometer = speedometer(50, 250);\n\n  return throttle(e => {\n    const loaded = e.loaded;\n    const total = e.lengthComputable ? e.total : undefined;\n    const progressBytes = loaded - bytesNotified;\n    const rate = _speedometer(progressBytes);\n    const inRange = loaded <= total;\n\n    bytesNotified = loaded;\n\n    const data = {\n      loaded,\n      total,\n      progress: total ? (loaded / total) : undefined,\n      bytes: progressBytes,\n      rate: rate ? rate : undefined,\n      estimated: rate && total && inRange ? (total - loaded) / rate : undefined,\n      event: e,\n      lengthComputable: total != null,\n      [isDownloadStream ? 'download' : 'upload']: true\n    };\n\n    listener(data);\n  }, freq);\n}\n\nexport const progressEventDecorator = (total, throttled) => {\n  const lengthComputable = total != null;\n\n  return [(loaded) => throttled[0]({\n    lengthComputable,\n    total,\n    loaded\n  }), throttled[1]];\n}\n\nexport const asyncDecorator = (fn) => (...args) => utils.asap(() => fn(...args));\n","import platform from '../platform/index.js';\n\nexport default platform.hasStandardBrowserEnv ? ((origin, isMSIE) => (url) => {\n  url = new URL(url, platform.origin);\n\n  return (\n    origin.protocol === url.protocol &&\n    origin.host === url.host &&\n    (isMSIE || origin.port === url.port)\n  );\n})(\n  new URL(platform.origin),\n  platform.navigator && /(msie|trident)/i.test(platform.navigator.userAgent)\n) : () => true;\n","import utils from './../utils.js';\nimport platform from '../platform/index.js';\n\nexport default platform.hasStandardBrowserEnv ?\n\n  // Standard browser envs support document.cookie\n  {\n    write(name, value, expires, path, domain, secure) {\n      const cookie = [name + '=' + encodeURIComponent(value)];\n\n      utils.isNumber(expires) && cookie.push('expires=' + new Date(expires).toGMTString());\n\n      utils.isString(path) && cookie.push('path=' + path);\n\n      utils.isString(domain) && cookie.push('domain=' + domain);\n\n      secure === true && cookie.push('secure');\n\n      document.cookie = cookie.join('; ');\n    },\n\n    read(name) {\n      const match = document.cookie.match(new RegExp('(^|;\\\\s*)(' + name + ')=([^;]*)'));\n      return (match ? decodeURIComponent(match[3]) : null);\n    },\n\n    remove(name) {\n      this.write(name, '', Date.now() - 86400000);\n    }\n  }\n\n  :\n\n  // Non-standard browser env (web workers, react-native) lack needed support.\n  {\n    write() {},\n    read() {\n      return null;\n    },\n    remove() {}\n  };\n\n","'use strict';\n\n/**\n * Determines whether the specified URL is absolute\n *\n * @param {string} url The URL to test\n *\n * @returns {boolean} True if the specified URL is absolute, otherwise false\n */\nexport default function isAbsoluteURL(url) {\n  // A URL is considered absolute if it begins with \"<scheme>://\" or \"//\" (protocol-relative URL).\n  // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed\n  // by any combination of letters, digits, plus, period, or hyphen.\n  return /^([a-z][a-z\\d+\\-.]*:)?\\/\\//i.test(url);\n}\n","'use strict';\n\n/**\n * Creates a new URL by combining the specified URLs\n *\n * @param {string} baseURL The base URL\n * @param {string} relativeURL The relative URL\n *\n * @returns {string} The combined URL\n */\nexport default function combineURLs(baseURL, relativeURL) {\n  return relativeURL\n    ? baseURL.replace(/\\/?\\/$/, '') + '/' + relativeURL.replace(/^\\/+/, '')\n    : baseURL;\n}\n","'use strict';\n\nimport isAbsoluteURL from '../helpers/isAbsoluteURL.js';\nimport combineURLs from '../helpers/combineURLs.js';\n\n/**\n * Creates a new URL by combining the baseURL with the requestedURL,\n * only when the requestedURL is not already an absolute URL.\n * If the requestURL is absolute, this function returns the requestedURL untouched.\n *\n * @param {string} baseURL The base URL\n * @param {string} requestedURL Absolute or relative URL to combine\n *\n * @returns {string} The combined full path\n */\nexport default function buildFullPath(baseURL, requestedURL) {\n  if (baseURL && !isAbsoluteURL(requestedURL)) {\n    return combineURLs(baseURL, requestedURL);\n  }\n  return requestedURL;\n}\n","'use strict';\n\nimport utils from '../utils.js';\nimport AxiosHeaders from \"./AxiosHeaders.js\";\n\nconst headersToObject = (thing) => thing instanceof AxiosHeaders ? { ...thing } : thing;\n\n/**\n * Config-specific merge-function which creates a new config-object\n * by merging two configuration objects together.\n *\n * @param {Object} config1\n * @param {Object} config2\n *\n * @returns {Object} New object resulting from merging config2 to config1\n */\nexport default function mergeConfig(config1, config2) {\n  // eslint-disable-next-line no-param-reassign\n  config2 = config2 || {};\n  const config = {};\n\n  function getMergedValue(target, source, prop, caseless) {\n    if (utils.isPlainObject(target) && utils.isPlainObject(source)) {\n      return utils.merge.call({caseless}, target, source);\n    } else if (utils.isPlainObject(source)) {\n      return utils.merge({}, source);\n    } else if (utils.isArray(source)) {\n      return source.slice();\n    }\n    return source;\n  }\n\n  // eslint-disable-next-line consistent-return\n  function mergeDeepProperties(a, b, prop , caseless) {\n    if (!utils.isUndefined(b)) {\n      return getMergedValue(a, b, prop , caseless);\n    } else if (!utils.isUndefined(a)) {\n      return getMergedValue(undefined, a, prop , caseless);\n    }\n  }\n\n  // eslint-disable-next-line consistent-return\n  function valueFromConfig2(a, b) {\n    if (!utils.isUndefined(b)) {\n      return getMergedValue(undefined, b);\n    }\n  }\n\n  // eslint-disable-next-line consistent-return\n  function defaultToConfig2(a, b) {\n    if (!utils.isUndefined(b)) {\n      return getMergedValue(undefined, b);\n    } else if (!utils.isUndefined(a)) {\n      return getMergedValue(undefined, a);\n    }\n  }\n\n  // eslint-disable-next-line consistent-return\n  function mergeDirectKeys(a, b, prop) {\n    if (prop in config2) {\n      return getMergedValue(a, b);\n    } else if (prop in config1) {\n      return getMergedValue(undefined, a);\n    }\n  }\n\n  const mergeMap = {\n    url: valueFromConfig2,\n    method: valueFromConfig2,\n    data: valueFromConfig2,\n    baseURL: defaultToConfig2,\n    transformRequest: defaultToConfig2,\n    transformResponse: defaultToConfig2,\n    paramsSerializer: defaultToConfig2,\n    timeout: defaultToConfig2,\n    timeoutMessage: defaultToConfig2,\n    withCredentials: defaultToConfig2,\n    withXSRFToken: defaultToConfig2,\n    adapter: defaultToConfig2,\n    responseType: defaultToConfig2,\n    xsrfCookieName: defaultToConfig2,\n    xsrfHeaderName: defaultToConfig2,\n    onUploadProgress: defaultToConfig2,\n    onDownloadProgress: defaultToConfig2,\n    decompress: defaultToConfig2,\n    maxContentLength: defaultToConfig2,\n    maxBodyLength: defaultToConfig2,\n    beforeRedirect: defaultToConfig2,\n    transport: defaultToConfig2,\n    httpAgent: defaultToConfig2,\n    httpsAgent: defaultToConfig2,\n    cancelToken: defaultToConfig2,\n    socketPath: defaultToConfig2,\n    responseEncoding: defaultToConfig2,\n    validateStatus: mergeDirectKeys,\n    headers: (a, b , prop) => mergeDeepProperties(headersToObject(a), headersToObject(b),prop, true)\n  };\n\n  utils.forEach(Object.keys(Object.assign({}, config1, config2)), function computeConfigValue(prop) {\n    const merge = mergeMap[prop] || mergeDeepProperties;\n    const configValue = merge(config1[prop], config2[prop], prop);\n    (utils.isUndefined(configValue) && merge !== mergeDirectKeys) || (config[prop] = configValue);\n  });\n\n  return config;\n}\n","import platform from \"../platform/index.js\";\nimport utils from \"../utils.js\";\nimport isURLSameOrigin from \"./isURLSameOrigin.js\";\nimport cookies from \"./cookies.js\";\nimport buildFullPath from \"../core/buildFullPath.js\";\nimport mergeConfig from \"../core/mergeConfig.js\";\nimport AxiosHeaders from \"../core/AxiosHeaders.js\";\nimport buildURL from \"./buildURL.js\";\n\nexport default (config) => {\n  const newConfig = mergeConfig({}, config);\n\n  let {data, withXSRFToken, xsrfHeaderName, xsrfCookieName, headers, auth} = newConfig;\n\n  newConfig.headers = headers = AxiosHeaders.from(headers);\n\n  newConfig.url = buildURL(buildFullPath(newConfig.baseURL, newConfig.url), config.params, config.paramsSerializer);\n\n  // HTTP basic authentication\n  if (auth) {\n    headers.set('Authorization', 'Basic ' +\n      btoa((auth.username || '') + ':' + (auth.password ? unescape(encodeURIComponent(auth.password)) : ''))\n    );\n  }\n\n  let contentType;\n\n  if (utils.isFormData(data)) {\n    if (platform.hasStandardBrowserEnv || platform.hasStandardBrowserWebWorkerEnv) {\n      headers.setContentType(undefined); // Let the browser set it\n    } else if ((contentType = headers.getContentType()) !== false) {\n      // fix semicolon duplication issue for ReactNative FormData implementation\n      const [type, ...tokens] = contentType ? contentType.split(';').map(token => token.trim()).filter(Boolean) : [];\n      headers.setContentType([type || 'multipart/form-data', ...tokens].join('; '));\n    }\n  }\n\n  // Add xsrf header\n  // This is only done if running in a standard browser environment.\n  // Specifically not if we're in a web worker, or react-native.\n\n  if (platform.hasStandardBrowserEnv) {\n    withXSRFToken && utils.isFunction(withXSRFToken) && (withXSRFToken = withXSRFToken(newConfig));\n\n    if (withXSRFToken || (withXSRFToken !== false && isURLSameOrigin(newConfig.url))) {\n      // Add xsrf header\n      const xsrfValue = xsrfHeaderName && xsrfCookieName && cookies.read(xsrfCookieName);\n\n      if (xsrfValue) {\n        headers.set(xsrfHeaderName, xsrfValue);\n      }\n    }\n  }\n\n  return newConfig;\n}\n\n","import utils from './../utils.js';\nimport settle from './../core/settle.js';\nimport transitionalDefaults from '../defaults/transitional.js';\nimport AxiosError from '../core/AxiosError.js';\nimport CanceledError from '../cancel/CanceledError.js';\nimport parseProtocol from '../helpers/parseProtocol.js';\nimport platform from '../platform/index.js';\nimport AxiosHeaders from '../core/AxiosHeaders.js';\nimport {progressEventReducer} from '../helpers/progressEventReducer.js';\nimport resolveConfig from \"../helpers/resolveConfig.js\";\n\nconst isXHRAdapterSupported = typeof XMLHttpRequest !== 'undefined';\n\nexport default isXHRAdapterSupported && function (config) {\n  return new Promise(function dispatchXhrRequest(resolve, reject) {\n    const _config = resolveConfig(config);\n    let requestData = _config.data;\n    const requestHeaders = AxiosHeaders.from(_config.headers).normalize();\n    let {responseType, onUploadProgress, onDownloadProgress} = _config;\n    let onCanceled;\n    let uploadThrottled, downloadThrottled;\n    let flushUpload, flushDownload;\n\n    function done() {\n      flushUpload && flushUpload(); // flush events\n      flushDownload && flushDownload(); // flush events\n\n      _config.cancelToken && _config.cancelToken.unsubscribe(onCanceled);\n\n      _config.signal && _config.signal.removeEventListener('abort', onCanceled);\n    }\n\n    let request = new XMLHttpRequest();\n\n    request.open(_config.method.toUpperCase(), _config.url, true);\n\n    // Set the request timeout in MS\n    request.timeout = _config.timeout;\n\n    function onloadend() {\n      if (!request) {\n        return;\n      }\n      // Prepare the response\n      const responseHeaders = AxiosHeaders.from(\n        'getAllResponseHeaders' in request && request.getAllResponseHeaders()\n      );\n      const responseData = !responseType || responseType === 'text' || responseType === 'json' ?\n        request.responseText : request.response;\n      const response = {\n        data: responseData,\n        status: request.status,\n        statusText: request.statusText,\n        headers: responseHeaders,\n        config,\n        request\n      };\n\n      settle(function _resolve(value) {\n        resolve(value);\n        done();\n      }, function _reject(err) {\n        reject(err);\n        done();\n      }, response);\n\n      // Clean up request\n      request = null;\n    }\n\n    if ('onloadend' in request) {\n      // Use onloadend if available\n      request.onloadend = onloadend;\n    } else {\n      // Listen for ready state to emulate onloadend\n      request.onreadystatechange = function handleLoad() {\n        if (!request || request.readyState !== 4) {\n          return;\n        }\n\n        // The request errored out and we didn't get a response, this will be\n        // handled by onerror instead\n        // With one exception: request that using file: protocol, most browsers\n        // will return status as 0 even though it's a successful request\n        if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {\n          return;\n        }\n        // readystate handler is calling before onerror or ontimeout handlers,\n        // so we should call onloadend on the next 'tick'\n        setTimeout(onloadend);\n      };\n    }\n\n    // Handle browser request cancellation (as opposed to a manual cancellation)\n    request.onabort = function handleAbort() {\n      if (!request) {\n        return;\n      }\n\n      reject(new AxiosError('Request aborted', AxiosError.ECONNABORTED, config, request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Handle low level network errors\n    request.onerror = function handleError() {\n      // Real errors are hidden from us by the browser\n      // onerror should only fire if it's a network error\n      reject(new AxiosError('Network Error', AxiosError.ERR_NETWORK, config, request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Handle timeout\n    request.ontimeout = function handleTimeout() {\n      let timeoutErrorMessage = _config.timeout ? 'timeout of ' + _config.timeout + 'ms exceeded' : 'timeout exceeded';\n      const transitional = _config.transitional || transitionalDefaults;\n      if (_config.timeoutErrorMessage) {\n        timeoutErrorMessage = _config.timeoutErrorMessage;\n      }\n      reject(new AxiosError(\n        timeoutErrorMessage,\n        transitional.clarifyTimeoutError ? AxiosError.ETIMEDOUT : AxiosError.ECONNABORTED,\n        config,\n        request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Remove Content-Type if data is undefined\n    requestData === undefined && requestHeaders.setContentType(null);\n\n    // Add headers to the request\n    if ('setRequestHeader' in request) {\n      utils.forEach(requestHeaders.toJSON(), function setRequestHeader(val, key) {\n        request.setRequestHeader(key, val);\n      });\n    }\n\n    // Add withCredentials to request if needed\n    if (!utils.isUndefined(_config.withCredentials)) {\n      request.withCredentials = !!_config.withCredentials;\n    }\n\n    // Add responseType to request if needed\n    if (responseType && responseType !== 'json') {\n      request.responseType = _config.responseType;\n    }\n\n    // Handle progress if needed\n    if (onDownloadProgress) {\n      ([downloadThrottled, flushDownload] = progressEventReducer(onDownloadProgress, true));\n      request.addEventListener('progress', downloadThrottled);\n    }\n\n    // Not all browsers support upload events\n    if (onUploadProgress && request.upload) {\n      ([uploadThrottled, flushUpload] = progressEventReducer(onUploadProgress));\n\n      request.upload.addEventListener('progress', uploadThrottled);\n\n      request.upload.addEventListener('loadend', flushUpload);\n    }\n\n    if (_config.cancelToken || _config.signal) {\n      // Handle cancellation\n      // eslint-disable-next-line func-names\n      onCanceled = cancel => {\n        if (!request) {\n          return;\n        }\n        reject(!cancel || cancel.type ? new CanceledError(null, config, request) : cancel);\n        request.abort();\n        request = null;\n      };\n\n      _config.cancelToken && _config.cancelToken.subscribe(onCanceled);\n      if (_config.signal) {\n        _config.signal.aborted ? onCanceled() : _config.signal.addEventListener('abort', onCanceled);\n      }\n    }\n\n    const protocol = parseProtocol(_config.url);\n\n    if (protocol && platform.protocols.indexOf(protocol) === -1) {\n      reject(new AxiosError('Unsupported protocol ' + protocol + ':', AxiosError.ERR_BAD_REQUEST, config));\n      return;\n    }\n\n\n    // Send the request\n    request.send(requestData || null);\n  });\n}\n","import CanceledError from \"../cancel/CanceledError.js\";\nimport AxiosError from \"../core/AxiosError.js\";\nimport utils from '../utils.js';\n\nconst composeSignals = (signals, timeout) => {\n  const {length} = (signals = signals ? signals.filter(Boolean) : []);\n\n  if (timeout || length) {\n    let controller = new AbortController();\n\n    let aborted;\n\n    const onabort = function (reason) {\n      if (!aborted) {\n        aborted = true;\n        unsubscribe();\n        const err = reason instanceof Error ? reason : this.reason;\n        controller.abort(err instanceof AxiosError ? err : new CanceledError(err instanceof Error ? err.message : err));\n      }\n    }\n\n    let timer = timeout && setTimeout(() => {\n      timer = null;\n      onabort(new AxiosError(`timeout ${timeout} of ms exceeded`, AxiosError.ETIMEDOUT))\n    }, timeout)\n\n    const unsubscribe = () => {\n      if (signals) {\n        timer && clearTimeout(timer);\n        timer = null;\n        signals.forEach(signal => {\n          signal.unsubscribe ? signal.unsubscribe(onabort) : signal.removeEventListener('abort', onabort);\n        });\n        signals = null;\n      }\n    }\n\n    signals.forEach((signal) => signal.addEventListener('abort', onabort));\n\n    const {signal} = controller;\n\n    signal.unsubscribe = () => utils.asap(unsubscribe);\n\n    return signal;\n  }\n}\n\nexport default composeSignals;\n","\nexport const streamChunk = function* (chunk, chunkSize) {\n  let len = chunk.byteLength;\n\n  if (!chunkSize || len < chunkSize) {\n    yield chunk;\n    return;\n  }\n\n  let pos = 0;\n  let end;\n\n  while (pos < len) {\n    end = pos + chunkSize;\n    yield chunk.slice(pos, end);\n    pos = end;\n  }\n}\n\nexport const readBytes = async function* (iterable, chunkSize) {\n  for await (const chunk of readStream(iterable)) {\n    yield* streamChunk(chunk, chunkSize);\n  }\n}\n\nconst readStream = async function* (stream) {\n  if (stream[Symbol.asyncIterator]) {\n    yield* stream;\n    return;\n  }\n\n  const reader = stream.getReader();\n  try {\n    for (;;) {\n      const {done, value} = await reader.read();\n      if (done) {\n        break;\n      }\n      yield value;\n    }\n  } finally {\n    await reader.cancel();\n  }\n}\n\nexport const trackStream = (stream, chunkSize, onProgress, onFinish) => {\n  const iterator = readBytes(stream, chunkSize);\n\n  let bytes = 0;\n  let done;\n  let _onFinish = (e) => {\n    if (!done) {\n      done = true;\n      onFinish && onFinish(e);\n    }\n  }\n\n  return new ReadableStream({\n    async pull(controller) {\n      try {\n        const {done, value} = await iterator.next();\n\n        if (done) {\n         _onFinish();\n          controller.close();\n          return;\n        }\n\n        let len = value.byteLength;\n        if (onProgress) {\n          let loadedBytes = bytes += len;\n          onProgress(loadedBytes);\n        }\n        controller.enqueue(new Uint8Array(value));\n      } catch (err) {\n        _onFinish(err);\n        throw err;\n      }\n    },\n    cancel(reason) {\n      _onFinish(reason);\n      return iterator.return();\n    }\n  }, {\n    highWaterMark: 2\n  })\n}\n","import platform from \"../platform/index.js\";\nimport utils from \"../utils.js\";\nimport AxiosError from \"../core/AxiosError.js\";\nimport composeSignals from \"../helpers/composeSignals.js\";\nimport {trackStream} from \"../helpers/trackStream.js\";\nimport AxiosHeaders from \"../core/AxiosHeaders.js\";\nimport {progressEventReducer, progressEventDecorator, asyncDecorator} from \"../helpers/progressEventReducer.js\";\nimport resolveConfig from \"../helpers/resolveConfig.js\";\nimport settle from \"../core/settle.js\";\n\nconst isFetchSupported = typeof fetch === 'function' && typeof Request === 'function' && typeof Response === 'function';\nconst isReadableStreamSupported = isFetchSupported && typeof ReadableStream === 'function';\n\n// used only inside the fetch adapter\nconst encodeText = isFetchSupported && (typeof TextEncoder === 'function' ?\n    ((encoder) => (str) => encoder.encode(str))(new TextEncoder()) :\n    async (str) => new Uint8Array(await new Response(str).arrayBuffer())\n);\n\nconst test = (fn, ...args) => {\n  try {\n    return !!fn(...args);\n  } catch (e) {\n    return false\n  }\n}\n\nconst supportsRequestStream = isReadableStreamSupported && test(() => {\n  let duplexAccessed = false;\n\n  const hasContentType = new Request(platform.origin, {\n    body: new ReadableStream(),\n    method: 'POST',\n    get duplex() {\n      duplexAccessed = true;\n      return 'half';\n    },\n  }).headers.has('Content-Type');\n\n  return duplexAccessed && !hasContentType;\n});\n\nconst DEFAULT_CHUNK_SIZE = 64 * 1024;\n\nconst supportsResponseStream = isReadableStreamSupported &&\n  test(() => utils.isReadableStream(new Response('').body));\n\n\nconst resolvers = {\n  stream: supportsResponseStream && ((res) => res.body)\n};\n\nisFetchSupported && (((res) => {\n  ['text', 'arrayBuffer', 'blob', 'formData', 'stream'].forEach(type => {\n    !resolvers[type] && (resolvers[type] = utils.isFunction(res[type]) ? (res) => res[type]() :\n      (_, config) => {\n        throw new AxiosError(`Response type '${type}' is not supported`, AxiosError.ERR_NOT_SUPPORT, config);\n      })\n  });\n})(new Response));\n\nconst getBodyLength = async (body) => {\n  if (body == null) {\n    return 0;\n  }\n\n  if(utils.isBlob(body)) {\n    return body.size;\n  }\n\n  if(utils.isSpecCompliantForm(body)) {\n    const _request = new Request(platform.origin, {\n      method: 'POST',\n      body,\n    });\n    return (await _request.arrayBuffer()).byteLength;\n  }\n\n  if(utils.isArrayBufferView(body) || utils.isArrayBuffer(body)) {\n    return body.byteLength;\n  }\n\n  if(utils.isURLSearchParams(body)) {\n    body = body + '';\n  }\n\n  if(utils.isString(body)) {\n    return (await encodeText(body)).byteLength;\n  }\n}\n\nconst resolveBodyLength = async (headers, body) => {\n  const length = utils.toFiniteNumber(headers.getContentLength());\n\n  return length == null ? getBodyLength(body) : length;\n}\n\nexport default isFetchSupported && (async (config) => {\n  let {\n    url,\n    method,\n    data,\n    signal,\n    cancelToken,\n    timeout,\n    onDownloadProgress,\n    onUploadProgress,\n    responseType,\n    headers,\n    withCredentials = 'same-origin',\n    fetchOptions\n  } = resolveConfig(config);\n\n  responseType = responseType ? (responseType + '').toLowerCase() : 'text';\n\n  let composedSignal = composeSignals([signal, cancelToken && cancelToken.toAbortSignal()], timeout);\n\n  let request;\n\n  const unsubscribe = composedSignal && composedSignal.unsubscribe && (() => {\n      composedSignal.unsubscribe();\n  });\n\n  let requestContentLength;\n\n  try {\n    if (\n      onUploadProgress && supportsRequestStream && method !== 'get' && method !== 'head' &&\n      (requestContentLength = await resolveBodyLength(headers, data)) !== 0\n    ) {\n      let _request = new Request(url, {\n        method: 'POST',\n        body: data,\n        duplex: \"half\"\n      });\n\n      let contentTypeHeader;\n\n      if (utils.isFormData(data) && (contentTypeHeader = _request.headers.get('content-type'))) {\n        headers.setContentType(contentTypeHeader)\n      }\n\n      if (_request.body) {\n        const [onProgress, flush] = progressEventDecorator(\n          requestContentLength,\n          progressEventReducer(asyncDecorator(onUploadProgress))\n        );\n\n        data = trackStream(_request.body, DEFAULT_CHUNK_SIZE, onProgress, flush);\n      }\n    }\n\n    if (!utils.isString(withCredentials)) {\n      withCredentials = withCredentials ? 'include' : 'omit';\n    }\n\n    // Cloudflare Workers throws when credentials are defined\n    // see https://github.com/cloudflare/workerd/issues/902\n    const isCredentialsSupported = \"credentials\" in Request.prototype;\n    request = new Request(url, {\n      ...fetchOptions,\n      signal: composedSignal,\n      method: method.toUpperCase(),\n      headers: headers.normalize().toJSON(),\n      body: data,\n      duplex: \"half\",\n      credentials: isCredentialsSupported ? withCredentials : undefined\n    });\n\n    let response = await fetch(request);\n\n    const isStreamResponse = supportsResponseStream && (responseType === 'stream' || responseType === 'response');\n\n    if (supportsResponseStream && (onDownloadProgress || (isStreamResponse && unsubscribe))) {\n      const options = {};\n\n      ['status', 'statusText', 'headers'].forEach(prop => {\n        options[prop] = response[prop];\n      });\n\n      const responseContentLength = utils.toFiniteNumber(response.headers.get('content-length'));\n\n      const [onProgress, flush] = onDownloadProgress && progressEventDecorator(\n        responseContentLength,\n        progressEventReducer(asyncDecorator(onDownloadProgress), true)\n      ) || [];\n\n      response = new Response(\n        trackStream(response.body, DEFAULT_CHUNK_SIZE, onProgress, () => {\n          flush && flush();\n          unsubscribe && unsubscribe();\n        }),\n        options\n      );\n    }\n\n    responseType = responseType || 'text';\n\n    let responseData = await resolvers[utils.findKey(resolvers, responseType) || 'text'](response, config);\n\n    !isStreamResponse && unsubscribe && unsubscribe();\n\n    return await new Promise((resolve, reject) => {\n      settle(resolve, reject, {\n        data: responseData,\n        headers: AxiosHeaders.from(response.headers),\n        status: response.status,\n        statusText: response.statusText,\n        config,\n        request\n      })\n    })\n  } catch (err) {\n    unsubscribe && unsubscribe();\n\n    if (err && err.name === 'TypeError' && /fetch/i.test(err.message)) {\n      throw Object.assign(\n        new AxiosError('Network Error', AxiosError.ERR_NETWORK, config, request),\n        {\n          cause: err.cause || err\n        }\n      )\n    }\n\n    throw AxiosError.from(err, err && err.code, config, request);\n  }\n});\n\n\n","import utils from '../utils.js';\nimport httpAdapter from './http.js';\nimport xhrAdapter from './xhr.js';\nimport fetchAdapter from './fetch.js';\nimport AxiosError from \"../core/AxiosError.js\";\n\nconst knownAdapters = {\n  http: httpAdapter,\n  xhr: xhrAdapter,\n  fetch: fetchAdapter\n}\n\nutils.forEach(knownAdapters, (fn, value) => {\n  if (fn) {\n    try {\n      Object.defineProperty(fn, 'name', {value});\n    } catch (e) {\n      // eslint-disable-next-line no-empty\n    }\n    Object.defineProperty(fn, 'adapterName', {value});\n  }\n});\n\nconst renderReason = (reason) => `- ${reason}`;\n\nconst isResolvedHandle = (adapter) => utils.isFunction(adapter) || adapter === null || adapter === false;\n\nexport default {\n  getAdapter: (adapters) => {\n    adapters = utils.isArray(adapters) ? adapters : [adapters];\n\n    const {length} = adapters;\n    let nameOrAdapter;\n    let adapter;\n\n    const rejectedReasons = {};\n\n    for (let i = 0; i < length; i++) {\n      nameOrAdapter = adapters[i];\n      let id;\n\n      adapter = nameOrAdapter;\n\n      if (!isResolvedHandle(nameOrAdapter)) {\n        adapter = knownAdapters[(id = String(nameOrAdapter)).toLowerCase()];\n\n        if (adapter === undefined) {\n          throw new AxiosError(`Unknown adapter '${id}'`);\n        }\n      }\n\n      if (adapter) {\n        break;\n      }\n\n      rejectedReasons[id || '#' + i] = adapter;\n    }\n\n    if (!adapter) {\n\n      const reasons = Object.entries(rejectedReasons)\n        .map(([id, state]) => `adapter ${id} ` +\n          (state === false ? 'is not supported by the environment' : 'is not available in the build')\n        );\n\n      let s = length ?\n        (reasons.length > 1 ? 'since :\\n' + reasons.map(renderReason).join('\\n') : ' ' + renderReason(reasons[0])) :\n        'as no adapter specified';\n\n      throw new AxiosError(\n        `There is no suitable adapter to dispatch the request ` + s,\n        'ERR_NOT_SUPPORT'\n      );\n    }\n\n    return adapter;\n  },\n  adapters: knownAdapters\n}\n","'use strict';\n\nimport transformData from './transformData.js';\nimport isCancel from '../cancel/isCancel.js';\nimport defaults from '../defaults/index.js';\nimport CanceledError from '../cancel/CanceledError.js';\nimport AxiosHeaders from '../core/AxiosHeaders.js';\nimport adapters from \"../adapters/adapters.js\";\n\n/**\n * Throws a `CanceledError` if cancellation has been requested.\n *\n * @param {Object} config The config that is to be used for the request\n *\n * @returns {void}\n */\nfunction throwIfCancellationRequested(config) {\n  if (config.cancelToken) {\n    config.cancelToken.throwIfRequested();\n  }\n\n  if (config.signal && config.signal.aborted) {\n    throw new CanceledError(null, config);\n  }\n}\n\n/**\n * Dispatch a request to the server using the configured adapter.\n *\n * @param {object} config The config that is to be used for the request\n *\n * @returns {Promise} The Promise to be fulfilled\n */\nexport default function dispatchRequest(config) {\n  throwIfCancellationRequested(config);\n\n  config.headers = AxiosHeaders.from(config.headers);\n\n  // Transform request data\n  config.data = transformData.call(\n    config,\n    config.transformRequest\n  );\n\n  if (['post', 'put', 'patch'].indexOf(config.method) !== -1) {\n    config.headers.setContentType('application/x-www-form-urlencoded', false);\n  }\n\n  const adapter = adapters.getAdapter(config.adapter || defaults.adapter);\n\n  return adapter(config).then(function onAdapterResolution(response) {\n    throwIfCancellationRequested(config);\n\n    // Transform response data\n    response.data = transformData.call(\n      config,\n      config.transformResponse,\n      response\n    );\n\n    response.headers = AxiosHeaders.from(response.headers);\n\n    return response;\n  }, function onAdapterRejection(reason) {\n    if (!isCancel(reason)) {\n      throwIfCancellationRequested(config);\n\n      // Transform response data\n      if (reason && reason.response) {\n        reason.response.data = transformData.call(\n          config,\n          config.transformResponse,\n          reason.response\n        );\n        reason.response.headers = AxiosHeaders.from(reason.response.headers);\n      }\n    }\n\n    return Promise.reject(reason);\n  });\n}\n","export const VERSION = \"1.7.9\";","'use strict';\n\nimport {VERSION} from '../env/data.js';\nimport AxiosError from '../core/AxiosError.js';\n\nconst validators = {};\n\n// eslint-disable-next-line func-names\n['object', 'boolean', 'number', 'function', 'string', 'symbol'].forEach((type, i) => {\n  validators[type] = function validator(thing) {\n    return typeof thing === type || 'a' + (i < 1 ? 'n ' : ' ') + type;\n  };\n});\n\nconst deprecatedWarnings = {};\n\n/**\n * Transitional option validator\n *\n * @param {function|boolean?} validator - set to false if the transitional option has been removed\n * @param {string?} version - deprecated version / removed since version\n * @param {string?} message - some message with additional info\n *\n * @returns {function}\n */\nvalidators.transitional = function transitional(validator, version, message) {\n  function formatMessage(opt, desc) {\n    return '[Axios v' + VERSION + '] Transitional option \\'' + opt + '\\'' + desc + (message ? '. ' + message : '');\n  }\n\n  // eslint-disable-next-line func-names\n  return (value, opt, opts) => {\n    if (validator === false) {\n      throw new AxiosError(\n        formatMessage(opt, ' has been removed' + (version ? ' in ' + version : '')),\n        AxiosError.ERR_DEPRECATED\n      );\n    }\n\n    if (version && !deprecatedWarnings[opt]) {\n      deprecatedWarnings[opt] = true;\n      // eslint-disable-next-line no-console\n      console.warn(\n        formatMessage(\n          opt,\n          ' has been deprecated since v' + version + ' and will be removed in the near future'\n        )\n      );\n    }\n\n    return validator ? validator(value, opt, opts) : true;\n  };\n};\n\nvalidators.spelling = function spelling(correctSpelling) {\n  return (value, opt) => {\n    // eslint-disable-next-line no-console\n    console.warn(`${opt} is likely a misspelling of ${correctSpelling}`);\n    return true;\n  }\n};\n\n/**\n * Assert object's properties type\n *\n * @param {object} options\n * @param {object} schema\n * @param {boolean?} allowUnknown\n *\n * @returns {object}\n */\n\nfunction assertOptions(options, schema, allowUnknown) {\n  if (typeof options !== 'object') {\n    throw new AxiosError('options must be an object', AxiosError.ERR_BAD_OPTION_VALUE);\n  }\n  const keys = Object.keys(options);\n  let i = keys.length;\n  while (i-- > 0) {\n    const opt = keys[i];\n    const validator = schema[opt];\n    if (validator) {\n      const value = options[opt];\n      const result = value === undefined || validator(value, opt, options);\n      if (result !== true) {\n        throw new AxiosError('option ' + opt + ' must be ' + result, AxiosError.ERR_BAD_OPTION_VALUE);\n      }\n      continue;\n    }\n    if (allowUnknown !== true) {\n      throw new AxiosError('Unknown option ' + opt, AxiosError.ERR_BAD_OPTION);\n    }\n  }\n}\n\nexport default {\n  assertOptions,\n  validators\n};\n","'use strict';\n\nimport utils from './../utils.js';\nimport buildURL from '../helpers/buildURL.js';\nimport InterceptorManager from './InterceptorManager.js';\nimport dispatchRequest from './dispatchRequest.js';\nimport mergeConfig from './mergeConfig.js';\nimport buildFullPath from './buildFullPath.js';\nimport validator from '../helpers/validator.js';\nimport AxiosHeaders from './AxiosHeaders.js';\n\nconst validators = validator.validators;\n\n/**\n * Create a new instance of Axios\n *\n * @param {Object} instanceConfig The default config for the instance\n *\n * @return {Axios} A new instance of Axios\n */\nclass Axios {\n  constructor(instanceConfig) {\n    this.defaults = instanceConfig;\n    this.interceptors = {\n      request: new InterceptorManager(),\n      response: new InterceptorManager()\n    };\n  }\n\n  /**\n   * Dispatch a request\n   *\n   * @param {String|Object} configOrUrl The config specific for this request (merged with this.defaults)\n   * @param {?Object} config\n   *\n   * @returns {Promise} The Promise to be fulfilled\n   */\n  async request(configOrUrl, config) {\n    try {\n      return await this._request(configOrUrl, config);\n    } catch (err) {\n      if (err instanceof Error) {\n        let dummy = {};\n\n        Error.captureStackTrace ? Error.captureStackTrace(dummy) : (dummy = new Error());\n\n        // slice off the Error: ... line\n        const stack = dummy.stack ? dummy.stack.replace(/^.+\\n/, '') : '';\n        try {\n          if (!err.stack) {\n            err.stack = stack;\n            // match without the 2 top stack lines\n          } else if (stack && !String(err.stack).endsWith(stack.replace(/^.+\\n.+\\n/, ''))) {\n            err.stack += '\\n' + stack\n          }\n        } catch (e) {\n          // ignore the case where \"stack\" is an un-writable property\n        }\n      }\n\n      throw err;\n    }\n  }\n\n  _request(configOrUrl, config) {\n    /*eslint no-param-reassign:0*/\n    // Allow for axios('example/url'[, config]) a la fetch API\n    if (typeof configOrUrl === 'string') {\n      config = config || {};\n      config.url = configOrUrl;\n    } else {\n      config = configOrUrl || {};\n    }\n\n    config = mergeConfig(this.defaults, config);\n\n    const {transitional, paramsSerializer, headers} = config;\n\n    if (transitional !== undefined) {\n      validator.assertOptions(transitional, {\n        silentJSONParsing: validators.transitional(validators.boolean),\n        forcedJSONParsing: validators.transitional(validators.boolean),\n        clarifyTimeoutError: validators.transitional(validators.boolean)\n      }, false);\n    }\n\n    if (paramsSerializer != null) {\n      if (utils.isFunction(paramsSerializer)) {\n        config.paramsSerializer = {\n          serialize: paramsSerializer\n        }\n      } else {\n        validator.assertOptions(paramsSerializer, {\n          encode: validators.function,\n          serialize: validators.function\n        }, true);\n      }\n    }\n\n    validator.assertOptions(config, {\n      baseUrl: validators.spelling('baseURL'),\n      withXsrfToken: validators.spelling('withXSRFToken')\n    }, true);\n\n    // Set config.method\n    config.method = (config.method || this.defaults.method || 'get').toLowerCase();\n\n    // Flatten headers\n    let contextHeaders = headers && utils.merge(\n      headers.common,\n      headers[config.method]\n    );\n\n    headers && utils.forEach(\n      ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],\n      (method) => {\n        delete headers[method];\n      }\n    );\n\n    config.headers = AxiosHeaders.concat(contextHeaders, headers);\n\n    // filter out skipped interceptors\n    const requestInterceptorChain = [];\n    let synchronousRequestInterceptors = true;\n    this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {\n      if (typeof interceptor.runWhen === 'function' && interceptor.runWhen(config) === false) {\n        return;\n      }\n\n      synchronousRequestInterceptors = synchronousRequestInterceptors && interceptor.synchronous;\n\n      requestInterceptorChain.unshift(interceptor.fulfilled, interceptor.rejected);\n    });\n\n    const responseInterceptorChain = [];\n    this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {\n      responseInterceptorChain.push(interceptor.fulfilled, interceptor.rejected);\n    });\n\n    let promise;\n    let i = 0;\n    let len;\n\n    if (!synchronousRequestInterceptors) {\n      const chain = [dispatchRequest.bind(this), undefined];\n      chain.unshift.apply(chain, requestInterceptorChain);\n      chain.push.apply(chain, responseInterceptorChain);\n      len = chain.length;\n\n      promise = Promise.resolve(config);\n\n      while (i < len) {\n        promise = promise.then(chain[i++], chain[i++]);\n      }\n\n      return promise;\n    }\n\n    len = requestInterceptorChain.length;\n\n    let newConfig = config;\n\n    i = 0;\n\n    while (i < len) {\n      const onFulfilled = requestInterceptorChain[i++];\n      const onRejected = requestInterceptorChain[i++];\n      try {\n        newConfig = onFulfilled(newConfig);\n      } catch (error) {\n        onRejected.call(this, error);\n        break;\n      }\n    }\n\n    try {\n      promise = dispatchRequest.call(this, newConfig);\n    } catch (error) {\n      return Promise.reject(error);\n    }\n\n    i = 0;\n    len = responseInterceptorChain.length;\n\n    while (i < len) {\n      promise = promise.then(responseInterceptorChain[i++], responseInterceptorChain[i++]);\n    }\n\n    return promise;\n  }\n\n  getUri(config) {\n    config = mergeConfig(this.defaults, config);\n    const fullPath = buildFullPath(config.baseURL, config.url);\n    return buildURL(fullPath, config.params, config.paramsSerializer);\n  }\n}\n\n// Provide aliases for supported request methods\nutils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {\n  /*eslint func-names:0*/\n  Axios.prototype[method] = function(url, config) {\n    return this.request(mergeConfig(config || {}, {\n      method,\n      url,\n      data: (config || {}).data\n    }));\n  };\n});\n\nutils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {\n  /*eslint func-names:0*/\n\n  function generateHTTPMethod(isForm) {\n    return function httpMethod(url, data, config) {\n      return this.request(mergeConfig(config || {}, {\n        method,\n        headers: isForm ? {\n          'Content-Type': 'multipart/form-data'\n        } : {},\n        url,\n        data\n      }));\n    };\n  }\n\n  Axios.prototype[method] = generateHTTPMethod();\n\n  Axios.prototype[method + 'Form'] = generateHTTPMethod(true);\n});\n\nexport default Axios;\n","'use strict';\n\nimport CanceledError from './CanceledError.js';\n\n/**\n * A `CancelToken` is an object that can be used to request cancellation of an operation.\n *\n * @param {Function} executor The executor function.\n *\n * @returns {CancelToken}\n */\nclass CancelToken {\n  constructor(executor) {\n    if (typeof executor !== 'function') {\n      throw new TypeError('executor must be a function.');\n    }\n\n    let resolvePromise;\n\n    this.promise = new Promise(function promiseExecutor(resolve) {\n      resolvePromise = resolve;\n    });\n\n    const token = this;\n\n    // eslint-disable-next-line func-names\n    this.promise.then(cancel => {\n      if (!token._listeners) return;\n\n      let i = token._listeners.length;\n\n      while (i-- > 0) {\n        token._listeners[i](cancel);\n      }\n      token._listeners = null;\n    });\n\n    // eslint-disable-next-line func-names\n    this.promise.then = onfulfilled => {\n      let _resolve;\n      // eslint-disable-next-line func-names\n      const promise = new Promise(resolve => {\n        token.subscribe(resolve);\n        _resolve = resolve;\n      }).then(onfulfilled);\n\n      promise.cancel = function reject() {\n        token.unsubscribe(_resolve);\n      };\n\n      return promise;\n    };\n\n    executor(function cancel(message, config, request) {\n      if (token.reason) {\n        // Cancellation has already been requested\n        return;\n      }\n\n      token.reason = new CanceledError(message, config, request);\n      resolvePromise(token.reason);\n    });\n  }\n\n  /**\n   * Throws a `CanceledError` if cancellation has been requested.\n   */\n  throwIfRequested() {\n    if (this.reason) {\n      throw this.reason;\n    }\n  }\n\n  /**\n   * Subscribe to the cancel signal\n   */\n\n  subscribe(listener) {\n    if (this.reason) {\n      listener(this.reason);\n      return;\n    }\n\n    if (this._listeners) {\n      this._listeners.push(listener);\n    } else {\n      this._listeners = [listener];\n    }\n  }\n\n  /**\n   * Unsubscribe from the cancel signal\n   */\n\n  unsubscribe(listener) {\n    if (!this._listeners) {\n      return;\n    }\n    const index = this._listeners.indexOf(listener);\n    if (index !== -1) {\n      this._listeners.splice(index, 1);\n    }\n  }\n\n  toAbortSignal() {\n    const controller = new AbortController();\n\n    const abort = (err) => {\n      controller.abort(err);\n    };\n\n    this.subscribe(abort);\n\n    controller.signal.unsubscribe = () => this.unsubscribe(abort);\n\n    return controller.signal;\n  }\n\n  /**\n   * Returns an object that contains a new `CancelToken` and a function that, when called,\n   * cancels the `CancelToken`.\n   */\n  static source() {\n    let cancel;\n    const token = new CancelToken(function executor(c) {\n      cancel = c;\n    });\n    return {\n      token,\n      cancel\n    };\n  }\n}\n\nexport default CancelToken;\n","'use strict';\n\n/**\n * Syntactic sugar for invoking a function and expanding an array for arguments.\n *\n * Common use case would be to use `Function.prototype.apply`.\n *\n *  ```js\n *  function f(x, y, z) {}\n *  var args = [1, 2, 3];\n *  f.apply(null, args);\n *  ```\n *\n * With `spread` this example can be re-written.\n *\n *  ```js\n *  spread(function(x, y, z) {})([1, 2, 3]);\n *  ```\n *\n * @param {Function} callback\n *\n * @returns {Function}\n */\nexport default function spread(callback) {\n  return function wrap(arr) {\n    return callback.apply(null, arr);\n  };\n}\n","'use strict';\n\nimport utils from './../utils.js';\n\n/**\n * Determines whether the payload is an error thrown by Axios\n *\n * @param {*} payload The value to test\n *\n * @returns {boolean} True if the payload is an error thrown by Axios, otherwise false\n */\nexport default function isAxiosError(payload) {\n  return utils.isObject(payload) && (payload.isAxiosError === true);\n}\n","const HttpStatusCode = {\n  Continue: 100,\n  SwitchingProtocols: 101,\n  Processing: 102,\n  EarlyHints: 103,\n  Ok: 200,\n  Created: 201,\n  Accepted: 202,\n  NonAuthoritativeInformation: 203,\n  NoContent: 204,\n  ResetContent: 205,\n  PartialContent: 206,\n  MultiStatus: 207,\n  AlreadyReported: 208,\n  ImUsed: 226,\n  MultipleChoices: 300,\n  MovedPermanently: 301,\n  Found: 302,\n  SeeOther: 303,\n  NotModified: 304,\n  UseProxy: 305,\n  Unused: 306,\n  TemporaryRedirect: 307,\n  PermanentRedirect: 308,\n  BadRequest: 400,\n  Unauthorized: 401,\n  PaymentRequired: 402,\n  Forbidden: 403,\n  NotFound: 404,\n  MethodNotAllowed: 405,\n  NotAcceptable: 406,\n  ProxyAuthenticationRequired: 407,\n  RequestTimeout: 408,\n  Conflict: 409,\n  Gone: 410,\n  LengthRequired: 411,\n  PreconditionFailed: 412,\n  PayloadTooLarge: 413,\n  UriTooLong: 414,\n  UnsupportedMediaType: 415,\n  RangeNotSatisfiable: 416,\n  ExpectationFailed: 417,\n  ImATeapot: 418,\n  MisdirectedRequest: 421,\n  UnprocessableEntity: 422,\n  Locked: 423,\n  FailedDependency: 424,\n  TooEarly: 425,\n  UpgradeRequired: 426,\n  PreconditionRequired: 428,\n  TooManyRequests: 429,\n  RequestHeaderFieldsTooLarge: 431,\n  UnavailableForLegalReasons: 451,\n  InternalServerError: 500,\n  NotImplemented: 501,\n  BadGateway: 502,\n  ServiceUnavailable: 503,\n  GatewayTimeout: 504,\n  HttpVersionNotSupported: 505,\n  VariantAlsoNegotiates: 506,\n  InsufficientStorage: 507,\n  LoopDetected: 508,\n  NotExtended: 510,\n  NetworkAuthenticationRequired: 511,\n};\n\nObject.entries(HttpStatusCode).forEach(([key, value]) => {\n  HttpStatusCode[value] = key;\n});\n\nexport default HttpStatusCode;\n","'use strict';\n\nimport utils from './utils.js';\nimport bind from './helpers/bind.js';\nimport Axios from './core/Axios.js';\nimport mergeConfig from './core/mergeConfig.js';\nimport defaults from './defaults/index.js';\nimport formDataToJSON from './helpers/formDataToJSON.js';\nimport CanceledError from './cancel/CanceledError.js';\nimport CancelToken from './cancel/CancelToken.js';\nimport isCancel from './cancel/isCancel.js';\nimport {VERSION} from './env/data.js';\nimport toFormData from './helpers/toFormData.js';\nimport AxiosError from './core/AxiosError.js';\nimport spread from './helpers/spread.js';\nimport isAxiosError from './helpers/isAxiosError.js';\nimport AxiosHeaders from \"./core/AxiosHeaders.js\";\nimport adapters from './adapters/adapters.js';\nimport HttpStatusCode from './helpers/HttpStatusCode.js';\n\n/**\n * Create an instance of Axios\n *\n * @param {Object} defaultConfig The default config for the instance\n *\n * @returns {Axios} A new instance of Axios\n */\nfunction createInstance(defaultConfig) {\n  const context = new Axios(defaultConfig);\n  const instance = bind(Axios.prototype.request, context);\n\n  // Copy axios.prototype to instance\n  utils.extend(instance, Axios.prototype, context, {allOwnKeys: true});\n\n  // Copy context to instance\n  utils.extend(instance, context, null, {allOwnKeys: true});\n\n  // Factory for creating new instances\n  instance.create = function create(instanceConfig) {\n    return createInstance(mergeConfig(defaultConfig, instanceConfig));\n  };\n\n  return instance;\n}\n\n// Create the default instance to be exported\nconst axios = createInstance(defaults);\n\n// Expose Axios class to allow class inheritance\naxios.Axios = Axios;\n\n// Expose Cancel & CancelToken\naxios.CanceledError = CanceledError;\naxios.CancelToken = CancelToken;\naxios.isCancel = isCancel;\naxios.VERSION = VERSION;\naxios.toFormData = toFormData;\n\n// Expose AxiosError class\naxios.AxiosError = AxiosError;\n\n// alias for CanceledError for backward compatibility\naxios.Cancel = axios.CanceledError;\n\n// Expose all/spread\naxios.all = function all(promises) {\n  return Promise.all(promises);\n};\n\naxios.spread = spread;\n\n// Expose isAxiosError\naxios.isAxiosError = isAxiosError;\n\n// Expose mergeConfig\naxios.mergeConfig = mergeConfig;\n\naxios.AxiosHeaders = AxiosHeaders;\n\naxios.formToJSON = thing => formDataToJSON(utils.isHTMLForm(thing) ? new FormData(thing) : thing);\n\naxios.getAdapter = adapters.getAdapter;\n\naxios.HttpStatusCode = HttpStatusCode;\n\naxios.default = axios;\n\n// this module should only have a default export\nexport default axios\n","import axios from './lib/axios.js';\n\n// This module is intended to unwrap Axios default export as named.\n// Keep top-level export same with static properties\n// so that it can keep same with es module or cjs\nconst {\n  Axios,\n  AxiosError,\n  CanceledError,\n  isCancel,\n  CancelToken,\n  VERSION,\n  all,\n  Cancel,\n  isAxiosError,\n  spread,\n  toFormData,\n  AxiosHeaders,\n  HttpStatusCode,\n  formToJSON,\n  getAdapter,\n  mergeConfig\n} = axios;\n\nexport {\n  axios as default,\n  Axios,\n  AxiosError,\n  CanceledError,\n  isCancel,\n  CancelToken,\n  VERSION,\n  all,\n  Cancel,\n  isAxiosError,\n  spread,\n  toFormData,\n  AxiosHeaders,\n  HttpStatusCode,\n  formToJSON,\n  getAdapter,\n  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diff --git a/backend/node_modules/axios/dist/esm/axios.min.js b/backend/node_modules/axios/dist/esm/axios.min.js
new file mode 100644
index 0000000..ed844d0
--- /dev/null
+++ b/backend/node_modules/axios/dist/esm/axios.min.js
@@ -0,0 +1,2 @@
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+//# sourceMappingURL=axios.min.js.map
diff --git a/backend/node_modules/axios/dist/esm/axios.min.js.map b/backend/node_modules/axios/dist/esm/axios.min.js.map
new file mode 100644
index 0000000..a3d96a5
--- /dev/null
+++ b/backend/node_modules/axios/dist/esm/axios.min.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"axios.min.js","sources":["../../lib/helpers/bind.js","../../lib/utils.js","../../lib/core/AxiosError.js","../../lib/helpers/toFormData.js","../../lib/helpers/AxiosURLSearchParams.js","../../lib/helpers/buildURL.js","../../lib/core/InterceptorManager.js","../../lib/defaults/transitional.js","../../lib/platform/browser/index.js","../../lib/platform/browser/classes/URLSearchParams.js","../../lib/platform/browser/classes/FormData.js","../../lib/platform/browser/classes/Blob.js","../../lib/platform/common/utils.js","../../lib/platform/index.js","../../lib/helpers/formDataToJSON.js","../../lib/defaults/index.js","../../lib/helpers/toURLEncodedForm.js","../../lib/helpers/parseHeaders.js","../../lib/core/AxiosHeaders.js","../../lib/core/transformData.js","../../lib/cancel/isCancel.js","../../lib/cancel/CanceledError.js","../../lib/core/settle.js","../../lib/helpers/progressEventReducer.js","../../lib/helpers/speedometer.js","../../lib/helpers/throttle.js","../../lib/helpers/isURLSameOrigin.js","../../lib/helpers/cookies.js","../../lib/core/buildFullPath.js","../../lib/helpers/isAbsoluteURL.js","../../lib/helpers/combineURLs.js","../../lib/core/mergeConfig.js","../../lib/helpers/resolveConfig.js","../../lib/adapters/xhr.js","../../lib/helpers/parseProtocol.js","../../lib/helpers/composeSignals.js","../../lib/helpers/trackStream.js","../../lib/adapters/fetch.js","../../lib/adapters/adapters.js","../../lib/helpers/null.js","../../lib/core/dispatchRequest.js","../../lib/env/data.js","../../lib/helpers/validator.js","../../lib/core/Axios.js","../../lib/cancel/CancelToken.js","../../lib/helpers/HttpStatusCode.js","../../lib/axios.js","../../lib/helpers/spread.js","../../lib/helpers/isAxiosError.js","../../index.js"],"sourcesContent":["'use strict';\n\nexport default function bind(fn, thisArg) {\n  return function wrap() {\n    return fn.apply(thisArg, arguments);\n  };\n}\n","'use strict';\n\nimport bind from './helpers/bind.js';\n\n// utils is a library of generic helper functions non-specific to axios\n\nconst {toString} = Object.prototype;\nconst {getPrototypeOf} = Object;\n\nconst kindOf = (cache => thing => {\n    const str = toString.call(thing);\n    return cache[str] || (cache[str] = str.slice(8, -1).toLowerCase());\n})(Object.create(null));\n\nconst kindOfTest = (type) => {\n  type = type.toLowerCase();\n  return (thing) => kindOf(thing) === type\n}\n\nconst typeOfTest = type => thing => typeof thing === type;\n\n/**\n * Determine if a value is an Array\n *\n * @param {Object} val The value to test\n *\n * @returns {boolean} True if value is an Array, otherwise false\n */\nconst {isArray} = Array;\n\n/**\n * Determine if a value is undefined\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if the value is undefined, otherwise false\n */\nconst isUndefined = typeOfTest('undefined');\n\n/**\n * Determine if a value is a Buffer\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Buffer, otherwise false\n */\nfunction isBuffer(val) {\n  return val !== null && !isUndefined(val) && val.constructor !== null && !isUndefined(val.constructor)\n    && isFunction(val.constructor.isBuffer) && val.constructor.isBuffer(val);\n}\n\n/**\n * Determine if a value is an ArrayBuffer\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is an ArrayBuffer, otherwise false\n */\nconst isArrayBuffer = kindOfTest('ArrayBuffer');\n\n\n/**\n * Determine if a value is a view on an ArrayBuffer\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false\n */\nfunction isArrayBufferView(val) {\n  let result;\n  if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) {\n    result = ArrayBuffer.isView(val);\n  } else {\n    result = (val) && (val.buffer) && (isArrayBuffer(val.buffer));\n  }\n  return result;\n}\n\n/**\n * Determine if a value is a String\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a String, otherwise false\n */\nconst isString = typeOfTest('string');\n\n/**\n * Determine if a value is a Function\n *\n * @param {*} val The value to test\n * @returns {boolean} True if value is a Function, otherwise false\n */\nconst isFunction = typeOfTest('function');\n\n/**\n * Determine if a value is a Number\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Number, otherwise false\n */\nconst isNumber = typeOfTest('number');\n\n/**\n * Determine if a value is an Object\n *\n * @param {*} thing The value to test\n *\n * @returns {boolean} True if value is an Object, otherwise false\n */\nconst isObject = (thing) => thing !== null && typeof thing === 'object';\n\n/**\n * Determine if a value is a Boolean\n *\n * @param {*} thing The value to test\n * @returns {boolean} True if value is a Boolean, otherwise false\n */\nconst isBoolean = thing => thing === true || thing === false;\n\n/**\n * Determine if a value is a plain Object\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a plain Object, otherwise false\n */\nconst isPlainObject = (val) => {\n  if (kindOf(val) !== 'object') {\n    return false;\n  }\n\n  const prototype = getPrototypeOf(val);\n  return (prototype === null || prototype === Object.prototype || Object.getPrototypeOf(prototype) === null) && !(Symbol.toStringTag in val) && !(Symbol.iterator in val);\n}\n\n/**\n * Determine if a value is a Date\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Date, otherwise false\n */\nconst isDate = kindOfTest('Date');\n\n/**\n * Determine if a value is a File\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a File, otherwise false\n */\nconst isFile = kindOfTest('File');\n\n/**\n * Determine if a value is a Blob\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Blob, otherwise false\n */\nconst isBlob = kindOfTest('Blob');\n\n/**\n * Determine if a value is a FileList\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a File, otherwise false\n */\nconst isFileList = kindOfTest('FileList');\n\n/**\n * Determine if a value is a Stream\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Stream, otherwise false\n */\nconst isStream = (val) => isObject(val) && isFunction(val.pipe);\n\n/**\n * Determine if a value is a FormData\n *\n * @param {*} thing The value to test\n *\n * @returns {boolean} True if value is an FormData, otherwise false\n */\nconst isFormData = (thing) => {\n  let kind;\n  return thing && (\n    (typeof FormData === 'function' && thing instanceof FormData) || (\n      isFunction(thing.append) && (\n        (kind = kindOf(thing)) === 'formdata' ||\n        // detect form-data instance\n        (kind === 'object' && isFunction(thing.toString) && thing.toString() === '[object FormData]')\n      )\n    )\n  )\n}\n\n/**\n * Determine if a value is a URLSearchParams object\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a URLSearchParams object, otherwise false\n */\nconst isURLSearchParams = kindOfTest('URLSearchParams');\n\nconst [isReadableStream, isRequest, isResponse, isHeaders] = ['ReadableStream', 'Request', 'Response', 'Headers'].map(kindOfTest);\n\n/**\n * Trim excess whitespace off the beginning and end of a string\n *\n * @param {String} str The String to trim\n *\n * @returns {String} The String freed of excess whitespace\n */\nconst trim = (str) => str.trim ?\n  str.trim() : str.replace(/^[\\s\\uFEFF\\xA0]+|[\\s\\uFEFF\\xA0]+$/g, '');\n\n/**\n * Iterate over an Array or an Object invoking a function for each item.\n *\n * If `obj` is an Array callback will be called passing\n * the value, index, and complete array for each item.\n *\n * If 'obj' is an Object callback will be called passing\n * the value, key, and complete object for each property.\n *\n * @param {Object|Array} obj The object to iterate\n * @param {Function} fn The callback to invoke for each item\n *\n * @param {Boolean} [allOwnKeys = false]\n * @returns {any}\n */\nfunction forEach(obj, fn, {allOwnKeys = false} = {}) {\n  // Don't bother if no value provided\n  if (obj === null || typeof obj === 'undefined') {\n    return;\n  }\n\n  let i;\n  let l;\n\n  // Force an array if not already something iterable\n  if (typeof obj !== 'object') {\n    /*eslint no-param-reassign:0*/\n    obj = [obj];\n  }\n\n  if (isArray(obj)) {\n    // Iterate over array values\n    for (i = 0, l = obj.length; i < l; i++) {\n      fn.call(null, obj[i], i, obj);\n    }\n  } else {\n    // Iterate over object keys\n    const keys = allOwnKeys ? Object.getOwnPropertyNames(obj) : Object.keys(obj);\n    const len = keys.length;\n    let key;\n\n    for (i = 0; i < len; i++) {\n      key = keys[i];\n      fn.call(null, obj[key], key, obj);\n    }\n  }\n}\n\nfunction findKey(obj, key) {\n  key = key.toLowerCase();\n  const keys = Object.keys(obj);\n  let i = keys.length;\n  let _key;\n  while (i-- > 0) {\n    _key = keys[i];\n    if (key === _key.toLowerCase()) {\n      return _key;\n    }\n  }\n  return null;\n}\n\nconst _global = (() => {\n  /*eslint no-undef:0*/\n  if (typeof globalThis !== \"undefined\") return globalThis;\n  return typeof self !== \"undefined\" ? self : (typeof window !== 'undefined' ? window : global)\n})();\n\nconst isContextDefined = (context) => !isUndefined(context) && context !== _global;\n\n/**\n * Accepts varargs expecting each argument to be an object, then\n * immutably merges the properties of each object and returns result.\n *\n * When multiple objects contain the same key the later object in\n * the arguments list will take precedence.\n *\n * Example:\n *\n * ```js\n * var result = merge({foo: 123}, {foo: 456});\n * console.log(result.foo); // outputs 456\n * ```\n *\n * @param {Object} obj1 Object to merge\n *\n * @returns {Object} Result of all merge properties\n */\nfunction merge(/* obj1, obj2, obj3, ... */) {\n  const {caseless} = isContextDefined(this) && this || {};\n  const result = {};\n  const assignValue = (val, key) => {\n    const targetKey = caseless && findKey(result, key) || key;\n    if (isPlainObject(result[targetKey]) && isPlainObject(val)) {\n      result[targetKey] = merge(result[targetKey], val);\n    } else if (isPlainObject(val)) {\n      result[targetKey] = merge({}, val);\n    } else if (isArray(val)) {\n      result[targetKey] = val.slice();\n    } else {\n      result[targetKey] = val;\n    }\n  }\n\n  for (let i = 0, l = arguments.length; i < l; i++) {\n    arguments[i] && forEach(arguments[i], assignValue);\n  }\n  return result;\n}\n\n/**\n * Extends object a by mutably adding to it the properties of object b.\n *\n * @param {Object} a The object to be extended\n * @param {Object} b The object to copy properties from\n * @param {Object} thisArg The object to bind function to\n *\n * @param {Boolean} [allOwnKeys]\n * @returns {Object} The resulting value of object a\n */\nconst extend = (a, b, thisArg, {allOwnKeys}= {}) => {\n  forEach(b, (val, key) => {\n    if (thisArg && isFunction(val)) {\n      a[key] = bind(val, thisArg);\n    } else {\n      a[key] = val;\n    }\n  }, {allOwnKeys});\n  return a;\n}\n\n/**\n * Remove byte order marker. This catches EF BB BF (the UTF-8 BOM)\n *\n * @param {string} content with BOM\n *\n * @returns {string} content value without BOM\n */\nconst stripBOM = (content) => {\n  if (content.charCodeAt(0) === 0xFEFF) {\n    content = content.slice(1);\n  }\n  return content;\n}\n\n/**\n * Inherit the prototype methods from one constructor into another\n * @param {function} constructor\n * @param {function} superConstructor\n * @param {object} [props]\n * @param {object} [descriptors]\n *\n * @returns {void}\n */\nconst inherits = (constructor, superConstructor, props, descriptors) => {\n  constructor.prototype = Object.create(superConstructor.prototype, descriptors);\n  constructor.prototype.constructor = constructor;\n  Object.defineProperty(constructor, 'super', {\n    value: superConstructor.prototype\n  });\n  props && Object.assign(constructor.prototype, props);\n}\n\n/**\n * Resolve object with deep prototype chain to a flat object\n * @param {Object} sourceObj source object\n * @param {Object} [destObj]\n * @param {Function|Boolean} [filter]\n * @param {Function} [propFilter]\n *\n * @returns {Object}\n */\nconst toFlatObject = (sourceObj, destObj, filter, propFilter) => {\n  let props;\n  let i;\n  let prop;\n  const merged = {};\n\n  destObj = destObj || {};\n  // eslint-disable-next-line no-eq-null,eqeqeq\n  if (sourceObj == null) return destObj;\n\n  do {\n    props = Object.getOwnPropertyNames(sourceObj);\n    i = props.length;\n    while (i-- > 0) {\n      prop = props[i];\n      if ((!propFilter || propFilter(prop, sourceObj, destObj)) && !merged[prop]) {\n        destObj[prop] = sourceObj[prop];\n        merged[prop] = true;\n      }\n    }\n    sourceObj = filter !== false && getPrototypeOf(sourceObj);\n  } while (sourceObj && (!filter || filter(sourceObj, destObj)) && sourceObj !== Object.prototype);\n\n  return destObj;\n}\n\n/**\n * Determines whether a string ends with the characters of a specified string\n *\n * @param {String} str\n * @param {String} searchString\n * @param {Number} [position= 0]\n *\n * @returns {boolean}\n */\nconst endsWith = (str, searchString, position) => {\n  str = String(str);\n  if (position === undefined || position > str.length) {\n    position = str.length;\n  }\n  position -= searchString.length;\n  const lastIndex = str.indexOf(searchString, position);\n  return lastIndex !== -1 && lastIndex === position;\n}\n\n\n/**\n * Returns new array from array like object or null if failed\n *\n * @param {*} [thing]\n *\n * @returns {?Array}\n */\nconst toArray = (thing) => {\n  if (!thing) return null;\n  if (isArray(thing)) return thing;\n  let i = thing.length;\n  if (!isNumber(i)) return null;\n  const arr = new Array(i);\n  while (i-- > 0) {\n    arr[i] = thing[i];\n  }\n  return arr;\n}\n\n/**\n * Checking if the Uint8Array exists and if it does, it returns a function that checks if the\n * thing passed in is an instance of Uint8Array\n *\n * @param {TypedArray}\n *\n * @returns {Array}\n */\n// eslint-disable-next-line func-names\nconst isTypedArray = (TypedArray => {\n  // eslint-disable-next-line func-names\n  return thing => {\n    return TypedArray && thing instanceof TypedArray;\n  };\n})(typeof Uint8Array !== 'undefined' && getPrototypeOf(Uint8Array));\n\n/**\n * For each entry in the object, call the function with the key and value.\n *\n * @param {Object<any, any>} obj - The object to iterate over.\n * @param {Function} fn - The function to call for each entry.\n *\n * @returns {void}\n */\nconst forEachEntry = (obj, fn) => {\n  const generator = obj && obj[Symbol.iterator];\n\n  const iterator = generator.call(obj);\n\n  let result;\n\n  while ((result = iterator.next()) && !result.done) {\n    const pair = result.value;\n    fn.call(obj, pair[0], pair[1]);\n  }\n}\n\n/**\n * It takes a regular expression and a string, and returns an array of all the matches\n *\n * @param {string} regExp - The regular expression to match against.\n * @param {string} str - The string to search.\n *\n * @returns {Array<boolean>}\n */\nconst matchAll = (regExp, str) => {\n  let matches;\n  const arr = [];\n\n  while ((matches = regExp.exec(str)) !== null) {\n    arr.push(matches);\n  }\n\n  return arr;\n}\n\n/* Checking if the kindOfTest function returns true when passed an HTMLFormElement. */\nconst isHTMLForm = kindOfTest('HTMLFormElement');\n\nconst toCamelCase = str => {\n  return str.toLowerCase().replace(/[-_\\s]([a-z\\d])(\\w*)/g,\n    function replacer(m, p1, p2) {\n      return p1.toUpperCase() + p2;\n    }\n  );\n};\n\n/* Creating a function that will check if an object has a property. */\nconst hasOwnProperty = (({hasOwnProperty}) => (obj, prop) => hasOwnProperty.call(obj, prop))(Object.prototype);\n\n/**\n * Determine if a value is a RegExp object\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a RegExp object, otherwise false\n */\nconst isRegExp = kindOfTest('RegExp');\n\nconst reduceDescriptors = (obj, reducer) => {\n  const descriptors = Object.getOwnPropertyDescriptors(obj);\n  const reducedDescriptors = {};\n\n  forEach(descriptors, (descriptor, name) => {\n    let ret;\n    if ((ret = reducer(descriptor, name, obj)) !== false) {\n      reducedDescriptors[name] = ret || descriptor;\n    }\n  });\n\n  Object.defineProperties(obj, reducedDescriptors);\n}\n\n/**\n * Makes all methods read-only\n * @param {Object} obj\n */\n\nconst freezeMethods = (obj) => {\n  reduceDescriptors(obj, (descriptor, name) => {\n    // skip restricted props in strict mode\n    if (isFunction(obj) && ['arguments', 'caller', 'callee'].indexOf(name) !== -1) {\n      return false;\n    }\n\n    const value = obj[name];\n\n    if (!isFunction(value)) return;\n\n    descriptor.enumerable = false;\n\n    if ('writable' in descriptor) {\n      descriptor.writable = false;\n      return;\n    }\n\n    if (!descriptor.set) {\n      descriptor.set = () => {\n        throw Error('Can not rewrite read-only method \\'' + name + '\\'');\n      };\n    }\n  });\n}\n\nconst toObjectSet = (arrayOrString, delimiter) => {\n  const obj = {};\n\n  const define = (arr) => {\n    arr.forEach(value => {\n      obj[value] = true;\n    });\n  }\n\n  isArray(arrayOrString) ? define(arrayOrString) : define(String(arrayOrString).split(delimiter));\n\n  return obj;\n}\n\nconst noop = () => {}\n\nconst toFiniteNumber = (value, defaultValue) => {\n  return value != null && Number.isFinite(value = +value) ? value : defaultValue;\n}\n\nconst ALPHA = 'abcdefghijklmnopqrstuvwxyz'\n\nconst DIGIT = '0123456789';\n\nconst ALPHABET = {\n  DIGIT,\n  ALPHA,\n  ALPHA_DIGIT: ALPHA + ALPHA.toUpperCase() + DIGIT\n}\n\nconst generateString = (size = 16, alphabet = ALPHABET.ALPHA_DIGIT) => {\n  let str = '';\n  const {length} = alphabet;\n  while (size--) {\n    str += alphabet[Math.random() * length|0]\n  }\n\n  return str;\n}\n\n/**\n * If the thing is a FormData object, return true, otherwise return false.\n *\n * @param {unknown} thing - The thing to check.\n *\n * @returns {boolean}\n */\nfunction isSpecCompliantForm(thing) {\n  return !!(thing && isFunction(thing.append) && thing[Symbol.toStringTag] === 'FormData' && thing[Symbol.iterator]);\n}\n\nconst toJSONObject = (obj) => {\n  const stack = new Array(10);\n\n  const visit = (source, i) => {\n\n    if (isObject(source)) {\n      if (stack.indexOf(source) >= 0) {\n        return;\n      }\n\n      if(!('toJSON' in source)) {\n        stack[i] = source;\n        const target = isArray(source) ? [] : {};\n\n        forEach(source, (value, key) => {\n          const reducedValue = visit(value, i + 1);\n          !isUndefined(reducedValue) && (target[key] = reducedValue);\n        });\n\n        stack[i] = undefined;\n\n        return target;\n      }\n    }\n\n    return source;\n  }\n\n  return visit(obj, 0);\n}\n\nconst isAsyncFn = kindOfTest('AsyncFunction');\n\nconst isThenable = (thing) =>\n  thing && (isObject(thing) || isFunction(thing)) && isFunction(thing.then) && isFunction(thing.catch);\n\n// original code\n// https://github.com/DigitalBrainJS/AxiosPromise/blob/16deab13710ec09779922131f3fa5954320f83ab/lib/utils.js#L11-L34\n\nconst _setImmediate = ((setImmediateSupported, postMessageSupported) => {\n  if (setImmediateSupported) {\n    return setImmediate;\n  }\n\n  return postMessageSupported ? ((token, callbacks) => {\n    _global.addEventListener(\"message\", ({source, data}) => {\n      if (source === _global && data === token) {\n        callbacks.length && callbacks.shift()();\n      }\n    }, false);\n\n    return (cb) => {\n      callbacks.push(cb);\n      _global.postMessage(token, \"*\");\n    }\n  })(`axios@${Math.random()}`, []) : (cb) => setTimeout(cb);\n})(\n  typeof setImmediate === 'function',\n  isFunction(_global.postMessage)\n);\n\nconst asap = typeof queueMicrotask !== 'undefined' ?\n  queueMicrotask.bind(_global) : ( typeof process !== 'undefined' && process.nextTick || _setImmediate);\n\n// *********************\n\nexport default {\n  isArray,\n  isArrayBuffer,\n  isBuffer,\n  isFormData,\n  isArrayBufferView,\n  isString,\n  isNumber,\n  isBoolean,\n  isObject,\n  isPlainObject,\n  isReadableStream,\n  isRequest,\n  isResponse,\n  isHeaders,\n  isUndefined,\n  isDate,\n  isFile,\n  isBlob,\n  isRegExp,\n  isFunction,\n  isStream,\n  isURLSearchParams,\n  isTypedArray,\n  isFileList,\n  forEach,\n  merge,\n  extend,\n  trim,\n  stripBOM,\n  inherits,\n  toFlatObject,\n  kindOf,\n  kindOfTest,\n  endsWith,\n  toArray,\n  forEachEntry,\n  matchAll,\n  isHTMLForm,\n  hasOwnProperty,\n  hasOwnProp: hasOwnProperty, // an alias to avoid ESLint no-prototype-builtins detection\n  reduceDescriptors,\n  freezeMethods,\n  toObjectSet,\n  toCamelCase,\n  noop,\n  toFiniteNumber,\n  findKey,\n  global: _global,\n  isContextDefined,\n  ALPHABET,\n  generateString,\n  isSpecCompliantForm,\n  toJSONObject,\n  isAsyncFn,\n  isThenable,\n  setImmediate: _setImmediate,\n  asap\n};\n","'use strict';\n\nimport utils from '../utils.js';\n\n/**\n * Create an Error with the specified message, config, error code, request and response.\n *\n * @param {string} message The error message.\n * @param {string} [code] The error code (for example, 'ECONNABORTED').\n * @param {Object} [config] The config.\n * @param {Object} [request] The request.\n * @param {Object} [response] The response.\n *\n * @returns {Error} The created error.\n */\nfunction AxiosError(message, code, config, request, response) {\n  Error.call(this);\n\n  if (Error.captureStackTrace) {\n    Error.captureStackTrace(this, this.constructor);\n  } else {\n    this.stack = (new Error()).stack;\n  }\n\n  this.message = message;\n  this.name = 'AxiosError';\n  code && (this.code = code);\n  config && (this.config = config);\n  request && (this.request = request);\n  if (response) {\n    this.response = response;\n    this.status = response.status ? response.status : null;\n  }\n}\n\nutils.inherits(AxiosError, Error, {\n  toJSON: function toJSON() {\n    return {\n      // Standard\n      message: this.message,\n      name: this.name,\n      // Microsoft\n      description: this.description,\n      number: this.number,\n      // Mozilla\n      fileName: this.fileName,\n      lineNumber: this.lineNumber,\n      columnNumber: this.columnNumber,\n      stack: this.stack,\n      // Axios\n      config: utils.toJSONObject(this.config),\n      code: this.code,\n      status: this.status\n    };\n  }\n});\n\nconst prototype = AxiosError.prototype;\nconst descriptors = {};\n\n[\n  'ERR_BAD_OPTION_VALUE',\n  'ERR_BAD_OPTION',\n  'ECONNABORTED',\n  'ETIMEDOUT',\n  'ERR_NETWORK',\n  'ERR_FR_TOO_MANY_REDIRECTS',\n  'ERR_DEPRECATED',\n  'ERR_BAD_RESPONSE',\n  'ERR_BAD_REQUEST',\n  'ERR_CANCELED',\n  'ERR_NOT_SUPPORT',\n  'ERR_INVALID_URL'\n// eslint-disable-next-line func-names\n].forEach(code => {\n  descriptors[code] = {value: code};\n});\n\nObject.defineProperties(AxiosError, descriptors);\nObject.defineProperty(prototype, 'isAxiosError', {value: true});\n\n// eslint-disable-next-line func-names\nAxiosError.from = (error, code, config, request, response, customProps) => {\n  const axiosError = Object.create(prototype);\n\n  utils.toFlatObject(error, axiosError, function filter(obj) {\n    return obj !== Error.prototype;\n  }, prop => {\n    return prop !== 'isAxiosError';\n  });\n\n  AxiosError.call(axiosError, error.message, code, config, request, response);\n\n  axiosError.cause = error;\n\n  axiosError.name = error.name;\n\n  customProps && Object.assign(axiosError, customProps);\n\n  return axiosError;\n};\n\nexport default AxiosError;\n","'use strict';\n\nimport utils from '../utils.js';\nimport AxiosError from '../core/AxiosError.js';\n// temporary hotfix to avoid circular references until AxiosURLSearchParams is refactored\nimport PlatformFormData from '../platform/node/classes/FormData.js';\n\n/**\n * Determines if the given thing is a array or js object.\n *\n * @param {string} thing - The object or array to be visited.\n *\n * @returns {boolean}\n */\nfunction isVisitable(thing) {\n  return utils.isPlainObject(thing) || utils.isArray(thing);\n}\n\n/**\n * It removes the brackets from the end of a string\n *\n * @param {string} key - The key of the parameter.\n *\n * @returns {string} the key without the brackets.\n */\nfunction removeBrackets(key) {\n  return utils.endsWith(key, '[]') ? key.slice(0, -2) : key;\n}\n\n/**\n * It takes a path, a key, and a boolean, and returns a string\n *\n * @param {string} path - The path to the current key.\n * @param {string} key - The key of the current object being iterated over.\n * @param {string} dots - If true, the key will be rendered with dots instead of brackets.\n *\n * @returns {string} The path to the current key.\n */\nfunction renderKey(path, key, dots) {\n  if (!path) return key;\n  return path.concat(key).map(function each(token, i) {\n    // eslint-disable-next-line no-param-reassign\n    token = removeBrackets(token);\n    return !dots && i ? '[' + token + ']' : token;\n  }).join(dots ? '.' : '');\n}\n\n/**\n * If the array is an array and none of its elements are visitable, then it's a flat array.\n *\n * @param {Array<any>} arr - The array to check\n *\n * @returns {boolean}\n */\nfunction isFlatArray(arr) {\n  return utils.isArray(arr) && !arr.some(isVisitable);\n}\n\nconst predicates = utils.toFlatObject(utils, {}, null, function filter(prop) {\n  return /^is[A-Z]/.test(prop);\n});\n\n/**\n * Convert a data object to FormData\n *\n * @param {Object} obj\n * @param {?Object} [formData]\n * @param {?Object} [options]\n * @param {Function} [options.visitor]\n * @param {Boolean} [options.metaTokens = true]\n * @param {Boolean} [options.dots = false]\n * @param {?Boolean} [options.indexes = false]\n *\n * @returns {Object}\n **/\n\n/**\n * It converts an object into a FormData object\n *\n * @param {Object<any, any>} obj - The object to convert to form data.\n * @param {string} formData - The FormData object to append to.\n * @param {Object<string, any>} options\n *\n * @returns\n */\nfunction toFormData(obj, formData, options) {\n  if (!utils.isObject(obj)) {\n    throw new TypeError('target must be an object');\n  }\n\n  // eslint-disable-next-line no-param-reassign\n  formData = formData || new (PlatformFormData || FormData)();\n\n  // eslint-disable-next-line no-param-reassign\n  options = utils.toFlatObject(options, {\n    metaTokens: true,\n    dots: false,\n    indexes: false\n  }, false, function defined(option, source) {\n    // eslint-disable-next-line no-eq-null,eqeqeq\n    return !utils.isUndefined(source[option]);\n  });\n\n  const metaTokens = options.metaTokens;\n  // eslint-disable-next-line no-use-before-define\n  const visitor = options.visitor || defaultVisitor;\n  const dots = options.dots;\n  const indexes = options.indexes;\n  const _Blob = options.Blob || typeof Blob !== 'undefined' && Blob;\n  const useBlob = _Blob && utils.isSpecCompliantForm(formData);\n\n  if (!utils.isFunction(visitor)) {\n    throw new TypeError('visitor must be a function');\n  }\n\n  function convertValue(value) {\n    if (value === null) return '';\n\n    if (utils.isDate(value)) {\n      return value.toISOString();\n    }\n\n    if (!useBlob && utils.isBlob(value)) {\n      throw new AxiosError('Blob is not supported. Use a Buffer instead.');\n    }\n\n    if (utils.isArrayBuffer(value) || utils.isTypedArray(value)) {\n      return useBlob && typeof Blob === 'function' ? new Blob([value]) : Buffer.from(value);\n    }\n\n    return value;\n  }\n\n  /**\n   * Default visitor.\n   *\n   * @param {*} value\n   * @param {String|Number} key\n   * @param {Array<String|Number>} path\n   * @this {FormData}\n   *\n   * @returns {boolean} return true to visit the each prop of the value recursively\n   */\n  function defaultVisitor(value, key, path) {\n    let arr = value;\n\n    if (value && !path && typeof value === 'object') {\n      if (utils.endsWith(key, '{}')) {\n        // eslint-disable-next-line no-param-reassign\n        key = metaTokens ? key : key.slice(0, -2);\n        // eslint-disable-next-line no-param-reassign\n        value = JSON.stringify(value);\n      } else if (\n        (utils.isArray(value) && isFlatArray(value)) ||\n        ((utils.isFileList(value) || utils.endsWith(key, '[]')) && (arr = utils.toArray(value))\n        )) {\n        // eslint-disable-next-line no-param-reassign\n        key = removeBrackets(key);\n\n        arr.forEach(function each(el, index) {\n          !(utils.isUndefined(el) || el === null) && formData.append(\n            // eslint-disable-next-line no-nested-ternary\n            indexes === true ? renderKey([key], index, dots) : (indexes === null ? key : key + '[]'),\n            convertValue(el)\n          );\n        });\n        return false;\n      }\n    }\n\n    if (isVisitable(value)) {\n      return true;\n    }\n\n    formData.append(renderKey(path, key, dots), convertValue(value));\n\n    return false;\n  }\n\n  const stack = [];\n\n  const exposedHelpers = Object.assign(predicates, {\n    defaultVisitor,\n    convertValue,\n    isVisitable\n  });\n\n  function build(value, path) {\n    if (utils.isUndefined(value)) return;\n\n    if (stack.indexOf(value) !== -1) {\n      throw Error('Circular reference detected in ' + path.join('.'));\n    }\n\n    stack.push(value);\n\n    utils.forEach(value, function each(el, key) {\n      const result = !(utils.isUndefined(el) || el === null) && visitor.call(\n        formData, el, utils.isString(key) ? key.trim() : key, path, exposedHelpers\n      );\n\n      if (result === true) {\n        build(el, path ? path.concat(key) : [key]);\n      }\n    });\n\n    stack.pop();\n  }\n\n  if (!utils.isObject(obj)) {\n    throw new TypeError('data must be an object');\n  }\n\n  build(obj);\n\n  return formData;\n}\n\nexport default toFormData;\n","'use strict';\n\nimport toFormData from './toFormData.js';\n\n/**\n * It encodes a string by replacing all characters that are not in the unreserved set with\n * their percent-encoded equivalents\n *\n * @param {string} str - The string to encode.\n *\n * @returns {string} The encoded string.\n */\nfunction encode(str) {\n  const charMap = {\n    '!': '%21',\n    \"'\": '%27',\n    '(': '%28',\n    ')': '%29',\n    '~': '%7E',\n    '%20': '+',\n    '%00': '\\x00'\n  };\n  return encodeURIComponent(str).replace(/[!'()~]|%20|%00/g, function replacer(match) {\n    return charMap[match];\n  });\n}\n\n/**\n * It takes a params object and converts it to a FormData object\n *\n * @param {Object<string, any>} params - The parameters to be converted to a FormData object.\n * @param {Object<string, any>} options - The options object passed to the Axios constructor.\n *\n * @returns {void}\n */\nfunction AxiosURLSearchParams(params, options) {\n  this._pairs = [];\n\n  params && toFormData(params, this, options);\n}\n\nconst prototype = AxiosURLSearchParams.prototype;\n\nprototype.append = function append(name, value) {\n  this._pairs.push([name, value]);\n};\n\nprototype.toString = function toString(encoder) {\n  const _encode = encoder ? function(value) {\n    return encoder.call(this, value, encode);\n  } : encode;\n\n  return this._pairs.map(function each(pair) {\n    return _encode(pair[0]) + '=' + _encode(pair[1]);\n  }, '').join('&');\n};\n\nexport default AxiosURLSearchParams;\n","'use strict';\n\nimport utils from '../utils.js';\nimport AxiosURLSearchParams from '../helpers/AxiosURLSearchParams.js';\n\n/**\n * It replaces all instances of the characters `:`, `$`, `,`, `+`, `[`, and `]` with their\n * URI encoded counterparts\n *\n * @param {string} val The value to be encoded.\n *\n * @returns {string} The encoded value.\n */\nfunction encode(val) {\n  return encodeURIComponent(val).\n    replace(/%3A/gi, ':').\n    replace(/%24/g, '$').\n    replace(/%2C/gi, ',').\n    replace(/%20/g, '+').\n    replace(/%5B/gi, '[').\n    replace(/%5D/gi, ']');\n}\n\n/**\n * Build a URL by appending params to the end\n *\n * @param {string} url The base of the url (e.g., http://www.google.com)\n * @param {object} [params] The params to be appended\n * @param {?(object|Function)} options\n *\n * @returns {string} The formatted url\n */\nexport default function buildURL(url, params, options) {\n  /*eslint no-param-reassign:0*/\n  if (!params) {\n    return url;\n  }\n  \n  const _encode = options && options.encode || encode;\n\n  if (utils.isFunction(options)) {\n    options = {\n      serialize: options\n    };\n  } \n\n  const serializeFn = options && options.serialize;\n\n  let serializedParams;\n\n  if (serializeFn) {\n    serializedParams = serializeFn(params, options);\n  } else {\n    serializedParams = utils.isURLSearchParams(params) ?\n      params.toString() :\n      new AxiosURLSearchParams(params, options).toString(_encode);\n  }\n\n  if (serializedParams) {\n    const hashmarkIndex = url.indexOf(\"#\");\n\n    if (hashmarkIndex !== -1) {\n      url = url.slice(0, hashmarkIndex);\n    }\n    url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;\n  }\n\n  return url;\n}\n","'use strict';\n\nimport utils from './../utils.js';\n\nclass InterceptorManager {\n  constructor() {\n    this.handlers = [];\n  }\n\n  /**\n   * Add a new interceptor to the stack\n   *\n   * @param {Function} fulfilled The function to handle `then` for a `Promise`\n   * @param {Function} rejected The function to handle `reject` for a `Promise`\n   *\n   * @return {Number} An ID used to remove interceptor later\n   */\n  use(fulfilled, rejected, options) {\n    this.handlers.push({\n      fulfilled,\n      rejected,\n      synchronous: options ? options.synchronous : false,\n      runWhen: options ? options.runWhen : null\n    });\n    return this.handlers.length - 1;\n  }\n\n  /**\n   * Remove an interceptor from the stack\n   *\n   * @param {Number} id The ID that was returned by `use`\n   *\n   * @returns {Boolean} `true` if the interceptor was removed, `false` otherwise\n   */\n  eject(id) {\n    if (this.handlers[id]) {\n      this.handlers[id] = null;\n    }\n  }\n\n  /**\n   * Clear all interceptors from the stack\n   *\n   * @returns {void}\n   */\n  clear() {\n    if (this.handlers) {\n      this.handlers = [];\n    }\n  }\n\n  /**\n   * Iterate over all the registered interceptors\n   *\n   * This method is particularly useful for skipping over any\n   * interceptors that may have become `null` calling `eject`.\n   *\n   * @param {Function} fn The function to call for each interceptor\n   *\n   * @returns {void}\n   */\n  forEach(fn) {\n    utils.forEach(this.handlers, function forEachHandler(h) {\n      if (h !== null) {\n        fn(h);\n      }\n    });\n  }\n}\n\nexport default InterceptorManager;\n","'use strict';\n\nexport default {\n  silentJSONParsing: true,\n  forcedJSONParsing: true,\n  clarifyTimeoutError: false\n};\n","import URLSearchParams from './classes/URLSearchParams.js'\nimport FormData from './classes/FormData.js'\nimport Blob from './classes/Blob.js'\n\nexport default {\n  isBrowser: true,\n  classes: {\n    URLSearchParams,\n    FormData,\n    Blob\n  },\n  protocols: ['http', 'https', 'file', 'blob', 'url', 'data']\n};\n","'use strict';\n\nimport AxiosURLSearchParams from '../../../helpers/AxiosURLSearchParams.js';\nexport default typeof URLSearchParams !== 'undefined' ? URLSearchParams : AxiosURLSearchParams;\n","'use strict';\n\nexport default typeof FormData !== 'undefined' ? FormData : null;\n","'use strict'\n\nexport default typeof Blob !== 'undefined' ? Blob : null\n","const hasBrowserEnv = typeof window !== 'undefined' && typeof document !== 'undefined';\n\nconst _navigator = typeof navigator === 'object' && navigator || undefined;\n\n/**\n * Determine if we're running in a standard browser environment\n *\n * This allows axios to run in a web worker, and react-native.\n * Both environments support XMLHttpRequest, but not fully standard globals.\n *\n * web workers:\n *  typeof window -> undefined\n *  typeof document -> undefined\n *\n * react-native:\n *  navigator.product -> 'ReactNative'\n * nativescript\n *  navigator.product -> 'NativeScript' or 'NS'\n *\n * @returns {boolean}\n */\nconst hasStandardBrowserEnv = hasBrowserEnv &&\n  (!_navigator || ['ReactNative', 'NativeScript', 'NS'].indexOf(_navigator.product) < 0);\n\n/**\n * Determine if we're running in a standard browser webWorker environment\n *\n * Although the `isStandardBrowserEnv` method indicates that\n * `allows axios to run in a web worker`, the WebWorker will still be\n * filtered out due to its judgment standard\n * `typeof window !== 'undefined' && typeof document !== 'undefined'`.\n * This leads to a problem when axios post `FormData` in webWorker\n */\nconst hasStandardBrowserWebWorkerEnv = (() => {\n  return (\n    typeof WorkerGlobalScope !== 'undefined' &&\n    // eslint-disable-next-line no-undef\n    self instanceof WorkerGlobalScope &&\n    typeof self.importScripts === 'function'\n  );\n})();\n\nconst origin = hasBrowserEnv && window.location.href || 'http://localhost';\n\nexport {\n  hasBrowserEnv,\n  hasStandardBrowserWebWorkerEnv,\n  hasStandardBrowserEnv,\n  _navigator as navigator,\n  origin\n}\n","import platform from './node/index.js';\nimport * as utils from './common/utils.js';\n\nexport default {\n  ...utils,\n  ...platform\n}\n","'use strict';\n\nimport utils from '../utils.js';\n\n/**\n * It takes a string like `foo[x][y][z]` and returns an array like `['foo', 'x', 'y', 'z']\n *\n * @param {string} name - The name of the property to get.\n *\n * @returns An array of strings.\n */\nfunction parsePropPath(name) {\n  // foo[x][y][z]\n  // foo.x.y.z\n  // foo-x-y-z\n  // foo x y z\n  return utils.matchAll(/\\w+|\\[(\\w*)]/g, name).map(match => {\n    return match[0] === '[]' ? '' : match[1] || match[0];\n  });\n}\n\n/**\n * Convert an array to an object.\n *\n * @param {Array<any>} arr - The array to convert to an object.\n *\n * @returns An object with the same keys and values as the array.\n */\nfunction arrayToObject(arr) {\n  const obj = {};\n  const keys = Object.keys(arr);\n  let i;\n  const len = keys.length;\n  let key;\n  for (i = 0; i < len; i++) {\n    key = keys[i];\n    obj[key] = arr[key];\n  }\n  return obj;\n}\n\n/**\n * It takes a FormData object and returns a JavaScript object\n *\n * @param {string} formData The FormData object to convert to JSON.\n *\n * @returns {Object<string, any> | null} The converted object.\n */\nfunction formDataToJSON(formData) {\n  function buildPath(path, value, target, index) {\n    let name = path[index++];\n\n    if (name === '__proto__') return true;\n\n    const isNumericKey = Number.isFinite(+name);\n    const isLast = index >= path.length;\n    name = !name && utils.isArray(target) ? target.length : name;\n\n    if (isLast) {\n      if (utils.hasOwnProp(target, name)) {\n        target[name] = [target[name], value];\n      } else {\n        target[name] = value;\n      }\n\n      return !isNumericKey;\n    }\n\n    if (!target[name] || !utils.isObject(target[name])) {\n      target[name] = [];\n    }\n\n    const result = buildPath(path, value, target[name], index);\n\n    if (result && utils.isArray(target[name])) {\n      target[name] = arrayToObject(target[name]);\n    }\n\n    return !isNumericKey;\n  }\n\n  if (utils.isFormData(formData) && utils.isFunction(formData.entries)) {\n    const obj = {};\n\n    utils.forEachEntry(formData, (name, value) => {\n      buildPath(parsePropPath(name), value, obj, 0);\n    });\n\n    return obj;\n  }\n\n  return null;\n}\n\nexport default formDataToJSON;\n","'use strict';\n\nimport utils from '../utils.js';\nimport AxiosError from '../core/AxiosError.js';\nimport transitionalDefaults from './transitional.js';\nimport toFormData from '../helpers/toFormData.js';\nimport toURLEncodedForm from '../helpers/toURLEncodedForm.js';\nimport platform from '../platform/index.js';\nimport formDataToJSON from '../helpers/formDataToJSON.js';\n\n/**\n * It takes a string, tries to parse it, and if it fails, it returns the stringified version\n * of the input\n *\n * @param {any} rawValue - The value to be stringified.\n * @param {Function} parser - A function that parses a string into a JavaScript object.\n * @param {Function} encoder - A function that takes a value and returns a string.\n *\n * @returns {string} A stringified version of the rawValue.\n */\nfunction stringifySafely(rawValue, parser, encoder) {\n  if (utils.isString(rawValue)) {\n    try {\n      (parser || JSON.parse)(rawValue);\n      return utils.trim(rawValue);\n    } catch (e) {\n      if (e.name !== 'SyntaxError') {\n        throw e;\n      }\n    }\n  }\n\n  return (encoder || JSON.stringify)(rawValue);\n}\n\nconst defaults = {\n\n  transitional: transitionalDefaults,\n\n  adapter: ['xhr', 'http', 'fetch'],\n\n  transformRequest: [function transformRequest(data, headers) {\n    const contentType = headers.getContentType() || '';\n    const hasJSONContentType = contentType.indexOf('application/json') > -1;\n    const isObjectPayload = utils.isObject(data);\n\n    if (isObjectPayload && utils.isHTMLForm(data)) {\n      data = new FormData(data);\n    }\n\n    const isFormData = utils.isFormData(data);\n\n    if (isFormData) {\n      return hasJSONContentType ? JSON.stringify(formDataToJSON(data)) : data;\n    }\n\n    if (utils.isArrayBuffer(data) ||\n      utils.isBuffer(data) ||\n      utils.isStream(data) ||\n      utils.isFile(data) ||\n      utils.isBlob(data) ||\n      utils.isReadableStream(data)\n    ) {\n      return data;\n    }\n    if (utils.isArrayBufferView(data)) {\n      return data.buffer;\n    }\n    if (utils.isURLSearchParams(data)) {\n      headers.setContentType('application/x-www-form-urlencoded;charset=utf-8', false);\n      return data.toString();\n    }\n\n    let isFileList;\n\n    if (isObjectPayload) {\n      if (contentType.indexOf('application/x-www-form-urlencoded') > -1) {\n        return toURLEncodedForm(data, this.formSerializer).toString();\n      }\n\n      if ((isFileList = utils.isFileList(data)) || contentType.indexOf('multipart/form-data') > -1) {\n        const _FormData = this.env && this.env.FormData;\n\n        return toFormData(\n          isFileList ? {'files[]': data} : data,\n          _FormData && new _FormData(),\n          this.formSerializer\n        );\n      }\n    }\n\n    if (isObjectPayload || hasJSONContentType ) {\n      headers.setContentType('application/json', false);\n      return stringifySafely(data);\n    }\n\n    return data;\n  }],\n\n  transformResponse: [function transformResponse(data) {\n    const transitional = this.transitional || defaults.transitional;\n    const forcedJSONParsing = transitional && transitional.forcedJSONParsing;\n    const JSONRequested = this.responseType === 'json';\n\n    if (utils.isResponse(data) || utils.isReadableStream(data)) {\n      return data;\n    }\n\n    if (data && utils.isString(data) && ((forcedJSONParsing && !this.responseType) || JSONRequested)) {\n      const silentJSONParsing = transitional && transitional.silentJSONParsing;\n      const strictJSONParsing = !silentJSONParsing && JSONRequested;\n\n      try {\n        return JSON.parse(data);\n      } catch (e) {\n        if (strictJSONParsing) {\n          if (e.name === 'SyntaxError') {\n            throw AxiosError.from(e, AxiosError.ERR_BAD_RESPONSE, this, null, this.response);\n          }\n          throw e;\n        }\n      }\n    }\n\n    return data;\n  }],\n\n  /**\n   * A timeout in milliseconds to abort a request. If set to 0 (default) a\n   * timeout is not created.\n   */\n  timeout: 0,\n\n  xsrfCookieName: 'XSRF-TOKEN',\n  xsrfHeaderName: 'X-XSRF-TOKEN',\n\n  maxContentLength: -1,\n  maxBodyLength: -1,\n\n  env: {\n    FormData: platform.classes.FormData,\n    Blob: platform.classes.Blob\n  },\n\n  validateStatus: function validateStatus(status) {\n    return status >= 200 && status < 300;\n  },\n\n  headers: {\n    common: {\n      'Accept': 'application/json, text/plain, */*',\n      'Content-Type': undefined\n    }\n  }\n};\n\nutils.forEach(['delete', 'get', 'head', 'post', 'put', 'patch'], (method) => {\n  defaults.headers[method] = {};\n});\n\nexport default defaults;\n","'use strict';\n\nimport utils from '../utils.js';\nimport toFormData from './toFormData.js';\nimport platform from '../platform/index.js';\n\nexport default function toURLEncodedForm(data, options) {\n  return toFormData(data, new platform.classes.URLSearchParams(), Object.assign({\n    visitor: function(value, key, path, helpers) {\n      if (platform.isNode && utils.isBuffer(value)) {\n        this.append(key, value.toString('base64'));\n        return false;\n      }\n\n      return helpers.defaultVisitor.apply(this, arguments);\n    }\n  }, options));\n}\n","'use strict';\n\nimport utils from './../utils.js';\n\n// RawAxiosHeaders whose duplicates are ignored by node\n// c.f. https://nodejs.org/api/http.html#http_message_headers\nconst ignoreDuplicateOf = utils.toObjectSet([\n  'age', 'authorization', 'content-length', 'content-type', 'etag',\n  'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since',\n  'last-modified', 'location', 'max-forwards', 'proxy-authorization',\n  'referer', 'retry-after', 'user-agent'\n]);\n\n/**\n * Parse headers into an object\n *\n * ```\n * Date: Wed, 27 Aug 2014 08:58:49 GMT\n * Content-Type: application/json\n * Connection: keep-alive\n * Transfer-Encoding: chunked\n * ```\n *\n * @param {String} rawHeaders Headers needing to be parsed\n *\n * @returns {Object} Headers parsed into an object\n */\nexport default rawHeaders => {\n  const parsed = {};\n  let key;\n  let val;\n  let i;\n\n  rawHeaders && rawHeaders.split('\\n').forEach(function parser(line) {\n    i = line.indexOf(':');\n    key = line.substring(0, i).trim().toLowerCase();\n    val = line.substring(i + 1).trim();\n\n    if (!key || (parsed[key] && ignoreDuplicateOf[key])) {\n      return;\n    }\n\n    if (key === 'set-cookie') {\n      if (parsed[key]) {\n        parsed[key].push(val);\n      } else {\n        parsed[key] = [val];\n      }\n    } else {\n      parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;\n    }\n  });\n\n  return parsed;\n};\n","'use strict';\n\nimport utils from '../utils.js';\nimport parseHeaders from '../helpers/parseHeaders.js';\n\nconst $internals = Symbol('internals');\n\nfunction normalizeHeader(header) {\n  return header && String(header).trim().toLowerCase();\n}\n\nfunction normalizeValue(value) {\n  if (value === false || value == null) {\n    return value;\n  }\n\n  return utils.isArray(value) ? value.map(normalizeValue) : String(value);\n}\n\nfunction parseTokens(str) {\n  const tokens = Object.create(null);\n  const tokensRE = /([^\\s,;=]+)\\s*(?:=\\s*([^,;]+))?/g;\n  let match;\n\n  while ((match = tokensRE.exec(str))) {\n    tokens[match[1]] = match[2];\n  }\n\n  return tokens;\n}\n\nconst isValidHeaderName = (str) => /^[-_a-zA-Z0-9^`|~,!#$%&'*+.]+$/.test(str.trim());\n\nfunction matchHeaderValue(context, value, header, filter, isHeaderNameFilter) {\n  if (utils.isFunction(filter)) {\n    return filter.call(this, value, header);\n  }\n\n  if (isHeaderNameFilter) {\n    value = header;\n  }\n\n  if (!utils.isString(value)) return;\n\n  if (utils.isString(filter)) {\n    return value.indexOf(filter) !== -1;\n  }\n\n  if (utils.isRegExp(filter)) {\n    return filter.test(value);\n  }\n}\n\nfunction formatHeader(header) {\n  return header.trim()\n    .toLowerCase().replace(/([a-z\\d])(\\w*)/g, (w, char, str) => {\n      return char.toUpperCase() + str;\n    });\n}\n\nfunction buildAccessors(obj, header) {\n  const accessorName = utils.toCamelCase(' ' + header);\n\n  ['get', 'set', 'has'].forEach(methodName => {\n    Object.defineProperty(obj, methodName + accessorName, {\n      value: function(arg1, arg2, arg3) {\n        return this[methodName].call(this, header, arg1, arg2, arg3);\n      },\n      configurable: true\n    });\n  });\n}\n\nclass AxiosHeaders {\n  constructor(headers) {\n    headers && this.set(headers);\n  }\n\n  set(header, valueOrRewrite, rewrite) {\n    const self = this;\n\n    function setHeader(_value, _header, _rewrite) {\n      const lHeader = normalizeHeader(_header);\n\n      if (!lHeader) {\n        throw new Error('header name must be a non-empty string');\n      }\n\n      const key = utils.findKey(self, lHeader);\n\n      if(!key || self[key] === undefined || _rewrite === true || (_rewrite === undefined && self[key] !== false)) {\n        self[key || _header] = normalizeValue(_value);\n      }\n    }\n\n    const setHeaders = (headers, _rewrite) =>\n      utils.forEach(headers, (_value, _header) => setHeader(_value, _header, _rewrite));\n\n    if (utils.isPlainObject(header) || header instanceof this.constructor) {\n      setHeaders(header, valueOrRewrite)\n    } else if(utils.isString(header) && (header = header.trim()) && !isValidHeaderName(header)) {\n      setHeaders(parseHeaders(header), valueOrRewrite);\n    } else if (utils.isHeaders(header)) {\n      for (const [key, value] of header.entries()) {\n        setHeader(value, key, rewrite);\n      }\n    } else {\n      header != null && setHeader(valueOrRewrite, header, rewrite);\n    }\n\n    return this;\n  }\n\n  get(header, parser) {\n    header = normalizeHeader(header);\n\n    if (header) {\n      const key = utils.findKey(this, header);\n\n      if (key) {\n        const value = this[key];\n\n        if (!parser) {\n          return value;\n        }\n\n        if (parser === true) {\n          return parseTokens(value);\n        }\n\n        if (utils.isFunction(parser)) {\n          return parser.call(this, value, key);\n        }\n\n        if (utils.isRegExp(parser)) {\n          return parser.exec(value);\n        }\n\n        throw new TypeError('parser must be boolean|regexp|function');\n      }\n    }\n  }\n\n  has(header, matcher) {\n    header = normalizeHeader(header);\n\n    if (header) {\n      const key = utils.findKey(this, header);\n\n      return !!(key && this[key] !== undefined && (!matcher || matchHeaderValue(this, this[key], key, matcher)));\n    }\n\n    return false;\n  }\n\n  delete(header, matcher) {\n    const self = this;\n    let deleted = false;\n\n    function deleteHeader(_header) {\n      _header = normalizeHeader(_header);\n\n      if (_header) {\n        const key = utils.findKey(self, _header);\n\n        if (key && (!matcher || matchHeaderValue(self, self[key], key, matcher))) {\n          delete self[key];\n\n          deleted = true;\n        }\n      }\n    }\n\n    if (utils.isArray(header)) {\n      header.forEach(deleteHeader);\n    } else {\n      deleteHeader(header);\n    }\n\n    return deleted;\n  }\n\n  clear(matcher) {\n    const keys = Object.keys(this);\n    let i = keys.length;\n    let deleted = false;\n\n    while (i--) {\n      const key = keys[i];\n      if(!matcher || matchHeaderValue(this, this[key], key, matcher, true)) {\n        delete this[key];\n        deleted = true;\n      }\n    }\n\n    return deleted;\n  }\n\n  normalize(format) {\n    const self = this;\n    const headers = {};\n\n    utils.forEach(this, (value, header) => {\n      const key = utils.findKey(headers, header);\n\n      if (key) {\n        self[key] = normalizeValue(value);\n        delete self[header];\n        return;\n      }\n\n      const normalized = format ? formatHeader(header) : String(header).trim();\n\n      if (normalized !== header) {\n        delete self[header];\n      }\n\n      self[normalized] = normalizeValue(value);\n\n      headers[normalized] = true;\n    });\n\n    return this;\n  }\n\n  concat(...targets) {\n    return this.constructor.concat(this, ...targets);\n  }\n\n  toJSON(asStrings) {\n    const obj = Object.create(null);\n\n    utils.forEach(this, (value, header) => {\n      value != null && value !== false && (obj[header] = asStrings && utils.isArray(value) ? value.join(', ') : value);\n    });\n\n    return obj;\n  }\n\n  [Symbol.iterator]() {\n    return Object.entries(this.toJSON())[Symbol.iterator]();\n  }\n\n  toString() {\n    return Object.entries(this.toJSON()).map(([header, value]) => header + ': ' + value).join('\\n');\n  }\n\n  get [Symbol.toStringTag]() {\n    return 'AxiosHeaders';\n  }\n\n  static from(thing) {\n    return thing instanceof this ? thing : new this(thing);\n  }\n\n  static concat(first, ...targets) {\n    const computed = new this(first);\n\n    targets.forEach((target) => computed.set(target));\n\n    return computed;\n  }\n\n  static accessor(header) {\n    const internals = this[$internals] = (this[$internals] = {\n      accessors: {}\n    });\n\n    const accessors = internals.accessors;\n    const prototype = this.prototype;\n\n    function defineAccessor(_header) {\n      const lHeader = normalizeHeader(_header);\n\n      if (!accessors[lHeader]) {\n        buildAccessors(prototype, _header);\n        accessors[lHeader] = true;\n      }\n    }\n\n    utils.isArray(header) ? header.forEach(defineAccessor) : defineAccessor(header);\n\n    return this;\n  }\n}\n\nAxiosHeaders.accessor(['Content-Type', 'Content-Length', 'Accept', 'Accept-Encoding', 'User-Agent', 'Authorization']);\n\n// reserved names hotfix\nutils.reduceDescriptors(AxiosHeaders.prototype, ({value}, key) => {\n  let mapped = key[0].toUpperCase() + key.slice(1); // map `set` => `Set`\n  return {\n    get: () => value,\n    set(headerValue) {\n      this[mapped] = headerValue;\n    }\n  }\n});\n\nutils.freezeMethods(AxiosHeaders);\n\nexport default AxiosHeaders;\n","'use strict';\n\nimport utils from './../utils.js';\nimport defaults from '../defaults/index.js';\nimport AxiosHeaders from '../core/AxiosHeaders.js';\n\n/**\n * Transform the data for a request or a response\n *\n * @param {Array|Function} fns A single function or Array of functions\n * @param {?Object} response The response object\n *\n * @returns {*} The resulting transformed data\n */\nexport default function transformData(fns, response) {\n  const config = this || defaults;\n  const context = response || config;\n  const headers = AxiosHeaders.from(context.headers);\n  let data = context.data;\n\n  utils.forEach(fns, function transform(fn) {\n    data = fn.call(config, data, headers.normalize(), response ? response.status : undefined);\n  });\n\n  headers.normalize();\n\n  return data;\n}\n","'use strict';\n\nexport default function isCancel(value) {\n  return !!(value && value.__CANCEL__);\n}\n","'use strict';\n\nimport AxiosError from '../core/AxiosError.js';\nimport utils from '../utils.js';\n\n/**\n * A `CanceledError` is an object that is thrown when an operation is canceled.\n *\n * @param {string=} message The message.\n * @param {Object=} config The config.\n * @param {Object=} request The request.\n *\n * @returns {CanceledError} The created error.\n */\nfunction CanceledError(message, config, request) {\n  // eslint-disable-next-line no-eq-null,eqeqeq\n  AxiosError.call(this, message == null ? 'canceled' : message, AxiosError.ERR_CANCELED, config, request);\n  this.name = 'CanceledError';\n}\n\nutils.inherits(CanceledError, AxiosError, {\n  __CANCEL__: true\n});\n\nexport default CanceledError;\n","'use strict';\n\nimport AxiosError from './AxiosError.js';\n\n/**\n * Resolve or reject a Promise based on response status.\n *\n * @param {Function} resolve A function that resolves the promise.\n * @param {Function} reject A function that rejects the promise.\n * @param {object} response The response.\n *\n * @returns {object} The response.\n */\nexport default function settle(resolve, reject, response) {\n  const validateStatus = response.config.validateStatus;\n  if (!response.status || !validateStatus || validateStatus(response.status)) {\n    resolve(response);\n  } else {\n    reject(new AxiosError(\n      'Request failed with status code ' + response.status,\n      [AxiosError.ERR_BAD_REQUEST, AxiosError.ERR_BAD_RESPONSE][Math.floor(response.status / 100) - 4],\n      response.config,\n      response.request,\n      response\n    ));\n  }\n}\n","import speedometer from \"./speedometer.js\";\nimport throttle from \"./throttle.js\";\nimport utils from \"../utils.js\";\n\nexport const progressEventReducer = (listener, isDownloadStream, freq = 3) => {\n  let bytesNotified = 0;\n  const _speedometer = speedometer(50, 250);\n\n  return throttle(e => {\n    const loaded = e.loaded;\n    const total = e.lengthComputable ? e.total : undefined;\n    const progressBytes = loaded - bytesNotified;\n    const rate = _speedometer(progressBytes);\n    const inRange = loaded <= total;\n\n    bytesNotified = loaded;\n\n    const data = {\n      loaded,\n      total,\n      progress: total ? (loaded / total) : undefined,\n      bytes: progressBytes,\n      rate: rate ? rate : undefined,\n      estimated: rate && total && inRange ? (total - loaded) / rate : undefined,\n      event: e,\n      lengthComputable: total != null,\n      [isDownloadStream ? 'download' : 'upload']: true\n    };\n\n    listener(data);\n  }, freq);\n}\n\nexport const progressEventDecorator = (total, throttled) => {\n  const lengthComputable = total != null;\n\n  return [(loaded) => throttled[0]({\n    lengthComputable,\n    total,\n    loaded\n  }), throttled[1]];\n}\n\nexport const asyncDecorator = (fn) => (...args) => utils.asap(() => fn(...args));\n","'use strict';\n\n/**\n * Calculate data maxRate\n * @param {Number} [samplesCount= 10]\n * @param {Number} [min= 1000]\n * @returns {Function}\n */\nfunction speedometer(samplesCount, min) {\n  samplesCount = samplesCount || 10;\n  const bytes = new Array(samplesCount);\n  const timestamps = new Array(samplesCount);\n  let head = 0;\n  let tail = 0;\n  let firstSampleTS;\n\n  min = min !== undefined ? min : 1000;\n\n  return function push(chunkLength) {\n    const now = Date.now();\n\n    const startedAt = timestamps[tail];\n\n    if (!firstSampleTS) {\n      firstSampleTS = now;\n    }\n\n    bytes[head] = chunkLength;\n    timestamps[head] = now;\n\n    let i = tail;\n    let bytesCount = 0;\n\n    while (i !== head) {\n      bytesCount += bytes[i++];\n      i = i % samplesCount;\n    }\n\n    head = (head + 1) % samplesCount;\n\n    if (head === tail) {\n      tail = (tail + 1) % samplesCount;\n    }\n\n    if (now - firstSampleTS < min) {\n      return;\n    }\n\n    const passed = startedAt && now - startedAt;\n\n    return passed ? Math.round(bytesCount * 1000 / passed) : undefined;\n  };\n}\n\nexport default speedometer;\n","/**\n * Throttle decorator\n * @param {Function} fn\n * @param {Number} freq\n * @return {Function}\n */\nfunction throttle(fn, freq) {\n  let timestamp = 0;\n  let threshold = 1000 / freq;\n  let lastArgs;\n  let timer;\n\n  const invoke = (args, now = Date.now()) => {\n    timestamp = now;\n    lastArgs = null;\n    if (timer) {\n      clearTimeout(timer);\n      timer = null;\n    }\n    fn.apply(null, args);\n  }\n\n  const throttled = (...args) => {\n    const now = Date.now();\n    const passed = now - timestamp;\n    if ( passed >= threshold) {\n      invoke(args, now);\n    } else {\n      lastArgs = args;\n      if (!timer) {\n        timer = setTimeout(() => {\n          timer = null;\n          invoke(lastArgs)\n        }, threshold - passed);\n      }\n    }\n  }\n\n  const flush = () => lastArgs && invoke(lastArgs);\n\n  return [throttled, flush];\n}\n\nexport default throttle;\n","import platform from '../platform/index.js';\n\nexport default platform.hasStandardBrowserEnv ? ((origin, isMSIE) => (url) => {\n  url = new URL(url, platform.origin);\n\n  return (\n    origin.protocol === url.protocol &&\n    origin.host === url.host &&\n    (isMSIE || origin.port === url.port)\n  );\n})(\n  new URL(platform.origin),\n  platform.navigator && /(msie|trident)/i.test(platform.navigator.userAgent)\n) : () => true;\n","import utils from './../utils.js';\nimport platform from '../platform/index.js';\n\nexport default platform.hasStandardBrowserEnv ?\n\n  // Standard browser envs support document.cookie\n  {\n    write(name, value, expires, path, domain, secure) {\n      const cookie = [name + '=' + encodeURIComponent(value)];\n\n      utils.isNumber(expires) && cookie.push('expires=' + new Date(expires).toGMTString());\n\n      utils.isString(path) && cookie.push('path=' + path);\n\n      utils.isString(domain) && cookie.push('domain=' + domain);\n\n      secure === true && cookie.push('secure');\n\n      document.cookie = cookie.join('; ');\n    },\n\n    read(name) {\n      const match = document.cookie.match(new RegExp('(^|;\\\\s*)(' + name + ')=([^;]*)'));\n      return (match ? decodeURIComponent(match[3]) : null);\n    },\n\n    remove(name) {\n      this.write(name, '', Date.now() - 86400000);\n    }\n  }\n\n  :\n\n  // Non-standard browser env (web workers, react-native) lack needed support.\n  {\n    write() {},\n    read() {\n      return null;\n    },\n    remove() {}\n  };\n\n","'use strict';\n\nimport isAbsoluteURL from '../helpers/isAbsoluteURL.js';\nimport combineURLs from '../helpers/combineURLs.js';\n\n/**\n * Creates a new URL by combining the baseURL with the requestedURL,\n * only when the requestedURL is not already an absolute URL.\n * If the requestURL is absolute, this function returns the requestedURL untouched.\n *\n * @param {string} baseURL The base URL\n * @param {string} requestedURL Absolute or relative URL to combine\n *\n * @returns {string} The combined full path\n */\nexport default function buildFullPath(baseURL, requestedURL) {\n  if (baseURL && !isAbsoluteURL(requestedURL)) {\n    return combineURLs(baseURL, requestedURL);\n  }\n  return requestedURL;\n}\n","'use strict';\n\n/**\n * Determines whether the specified URL is absolute\n *\n * @param {string} url The URL to test\n *\n * @returns {boolean} True if the specified URL is absolute, otherwise false\n */\nexport default function isAbsoluteURL(url) {\n  // A URL is considered absolute if it begins with \"<scheme>://\" or \"//\" (protocol-relative URL).\n  // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed\n  // by any combination of letters, digits, plus, period, or hyphen.\n  return /^([a-z][a-z\\d+\\-.]*:)?\\/\\//i.test(url);\n}\n","'use strict';\n\n/**\n * Creates a new URL by combining the specified URLs\n *\n * @param {string} baseURL The base URL\n * @param {string} relativeURL The relative URL\n *\n * @returns {string} The combined URL\n */\nexport default function combineURLs(baseURL, relativeURL) {\n  return relativeURL\n    ? baseURL.replace(/\\/?\\/$/, '') + '/' + relativeURL.replace(/^\\/+/, '')\n    : baseURL;\n}\n","'use strict';\n\nimport utils from '../utils.js';\nimport AxiosHeaders from \"./AxiosHeaders.js\";\n\nconst headersToObject = (thing) => thing instanceof AxiosHeaders ? { ...thing } : thing;\n\n/**\n * Config-specific merge-function which creates a new config-object\n * by merging two configuration objects together.\n *\n * @param {Object} config1\n * @param {Object} config2\n *\n * @returns {Object} New object resulting from merging config2 to config1\n */\nexport default function mergeConfig(config1, config2) {\n  // eslint-disable-next-line no-param-reassign\n  config2 = config2 || {};\n  const config = {};\n\n  function getMergedValue(target, source, prop, caseless) {\n    if (utils.isPlainObject(target) && utils.isPlainObject(source)) {\n      return utils.merge.call({caseless}, target, source);\n    } else if (utils.isPlainObject(source)) {\n      return utils.merge({}, source);\n    } else if (utils.isArray(source)) {\n      return source.slice();\n    }\n    return source;\n  }\n\n  // eslint-disable-next-line consistent-return\n  function mergeDeepProperties(a, b, prop , caseless) {\n    if (!utils.isUndefined(b)) {\n      return getMergedValue(a, b, prop , caseless);\n    } else if (!utils.isUndefined(a)) {\n      return getMergedValue(undefined, a, prop , caseless);\n    }\n  }\n\n  // eslint-disable-next-line consistent-return\n  function valueFromConfig2(a, b) {\n    if (!utils.isUndefined(b)) {\n      return getMergedValue(undefined, b);\n    }\n  }\n\n  // eslint-disable-next-line consistent-return\n  function defaultToConfig2(a, b) {\n    if (!utils.isUndefined(b)) {\n      return getMergedValue(undefined, b);\n    } else if (!utils.isUndefined(a)) {\n      return getMergedValue(undefined, a);\n    }\n  }\n\n  // eslint-disable-next-line consistent-return\n  function mergeDirectKeys(a, b, prop) {\n    if (prop in config2) {\n      return getMergedValue(a, b);\n    } else if (prop in config1) {\n      return getMergedValue(undefined, a);\n    }\n  }\n\n  const mergeMap = {\n    url: valueFromConfig2,\n    method: valueFromConfig2,\n    data: valueFromConfig2,\n    baseURL: defaultToConfig2,\n    transformRequest: defaultToConfig2,\n    transformResponse: defaultToConfig2,\n    paramsSerializer: defaultToConfig2,\n    timeout: defaultToConfig2,\n    timeoutMessage: defaultToConfig2,\n    withCredentials: defaultToConfig2,\n    withXSRFToken: defaultToConfig2,\n    adapter: defaultToConfig2,\n    responseType: defaultToConfig2,\n    xsrfCookieName: defaultToConfig2,\n    xsrfHeaderName: defaultToConfig2,\n    onUploadProgress: defaultToConfig2,\n    onDownloadProgress: defaultToConfig2,\n    decompress: defaultToConfig2,\n    maxContentLength: defaultToConfig2,\n    maxBodyLength: defaultToConfig2,\n    beforeRedirect: defaultToConfig2,\n    transport: defaultToConfig2,\n    httpAgent: defaultToConfig2,\n    httpsAgent: defaultToConfig2,\n    cancelToken: defaultToConfig2,\n    socketPath: defaultToConfig2,\n    responseEncoding: defaultToConfig2,\n    validateStatus: mergeDirectKeys,\n    headers: (a, b , prop) => mergeDeepProperties(headersToObject(a), headersToObject(b),prop, true)\n  };\n\n  utils.forEach(Object.keys(Object.assign({}, config1, config2)), function computeConfigValue(prop) {\n    const merge = mergeMap[prop] || mergeDeepProperties;\n    const configValue = merge(config1[prop], config2[prop], prop);\n    (utils.isUndefined(configValue) && merge !== mergeDirectKeys) || (config[prop] = configValue);\n  });\n\n  return config;\n}\n","import platform from \"../platform/index.js\";\nimport utils from \"../utils.js\";\nimport isURLSameOrigin from \"./isURLSameOrigin.js\";\nimport cookies from \"./cookies.js\";\nimport buildFullPath from \"../core/buildFullPath.js\";\nimport mergeConfig from \"../core/mergeConfig.js\";\nimport AxiosHeaders from \"../core/AxiosHeaders.js\";\nimport buildURL from \"./buildURL.js\";\n\nexport default (config) => {\n  const newConfig = mergeConfig({}, config);\n\n  let {data, withXSRFToken, xsrfHeaderName, xsrfCookieName, headers, auth} = newConfig;\n\n  newConfig.headers = headers = AxiosHeaders.from(headers);\n\n  newConfig.url = buildURL(buildFullPath(newConfig.baseURL, newConfig.url), config.params, config.paramsSerializer);\n\n  // HTTP basic authentication\n  if (auth) {\n    headers.set('Authorization', 'Basic ' +\n      btoa((auth.username || '') + ':' + (auth.password ? unescape(encodeURIComponent(auth.password)) : ''))\n    );\n  }\n\n  let contentType;\n\n  if (utils.isFormData(data)) {\n    if (platform.hasStandardBrowserEnv || platform.hasStandardBrowserWebWorkerEnv) {\n      headers.setContentType(undefined); // Let the browser set it\n    } else if ((contentType = headers.getContentType()) !== false) {\n      // fix semicolon duplication issue for ReactNative FormData implementation\n      const [type, ...tokens] = contentType ? contentType.split(';').map(token => token.trim()).filter(Boolean) : [];\n      headers.setContentType([type || 'multipart/form-data', ...tokens].join('; '));\n    }\n  }\n\n  // Add xsrf header\n  // This is only done if running in a standard browser environment.\n  // Specifically not if we're in a web worker, or react-native.\n\n  if (platform.hasStandardBrowserEnv) {\n    withXSRFToken && utils.isFunction(withXSRFToken) && (withXSRFToken = withXSRFToken(newConfig));\n\n    if (withXSRFToken || (withXSRFToken !== false && isURLSameOrigin(newConfig.url))) {\n      // Add xsrf header\n      const xsrfValue = xsrfHeaderName && xsrfCookieName && cookies.read(xsrfCookieName);\n\n      if (xsrfValue) {\n        headers.set(xsrfHeaderName, xsrfValue);\n      }\n    }\n  }\n\n  return newConfig;\n}\n\n","import utils from './../utils.js';\nimport settle from './../core/settle.js';\nimport transitionalDefaults from '../defaults/transitional.js';\nimport AxiosError from '../core/AxiosError.js';\nimport CanceledError from '../cancel/CanceledError.js';\nimport parseProtocol from '../helpers/parseProtocol.js';\nimport platform from '../platform/index.js';\nimport AxiosHeaders from '../core/AxiosHeaders.js';\nimport {progressEventReducer} from '../helpers/progressEventReducer.js';\nimport resolveConfig from \"../helpers/resolveConfig.js\";\n\nconst isXHRAdapterSupported = typeof XMLHttpRequest !== 'undefined';\n\nexport default isXHRAdapterSupported && function (config) {\n  return new Promise(function dispatchXhrRequest(resolve, reject) {\n    const _config = resolveConfig(config);\n    let requestData = _config.data;\n    const requestHeaders = AxiosHeaders.from(_config.headers).normalize();\n    let {responseType, onUploadProgress, onDownloadProgress} = _config;\n    let onCanceled;\n    let uploadThrottled, downloadThrottled;\n    let flushUpload, flushDownload;\n\n    function done() {\n      flushUpload && flushUpload(); // flush events\n      flushDownload && flushDownload(); // flush events\n\n      _config.cancelToken && _config.cancelToken.unsubscribe(onCanceled);\n\n      _config.signal && _config.signal.removeEventListener('abort', onCanceled);\n    }\n\n    let request = new XMLHttpRequest();\n\n    request.open(_config.method.toUpperCase(), _config.url, true);\n\n    // Set the request timeout in MS\n    request.timeout = _config.timeout;\n\n    function onloadend() {\n      if (!request) {\n        return;\n      }\n      // Prepare the response\n      const responseHeaders = AxiosHeaders.from(\n        'getAllResponseHeaders' in request && request.getAllResponseHeaders()\n      );\n      const responseData = !responseType || responseType === 'text' || responseType === 'json' ?\n        request.responseText : request.response;\n      const response = {\n        data: responseData,\n        status: request.status,\n        statusText: request.statusText,\n        headers: responseHeaders,\n        config,\n        request\n      };\n\n      settle(function _resolve(value) {\n        resolve(value);\n        done();\n      }, function _reject(err) {\n        reject(err);\n        done();\n      }, response);\n\n      // Clean up request\n      request = null;\n    }\n\n    if ('onloadend' in request) {\n      // Use onloadend if available\n      request.onloadend = onloadend;\n    } else {\n      // Listen for ready state to emulate onloadend\n      request.onreadystatechange = function handleLoad() {\n        if (!request || request.readyState !== 4) {\n          return;\n        }\n\n        // The request errored out and we didn't get a response, this will be\n        // handled by onerror instead\n        // With one exception: request that using file: protocol, most browsers\n        // will return status as 0 even though it's a successful request\n        if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {\n          return;\n        }\n        // readystate handler is calling before onerror or ontimeout handlers,\n        // so we should call onloadend on the next 'tick'\n        setTimeout(onloadend);\n      };\n    }\n\n    // Handle browser request cancellation (as opposed to a manual cancellation)\n    request.onabort = function handleAbort() {\n      if (!request) {\n        return;\n      }\n\n      reject(new AxiosError('Request aborted', AxiosError.ECONNABORTED, config, request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Handle low level network errors\n    request.onerror = function handleError() {\n      // Real errors are hidden from us by the browser\n      // onerror should only fire if it's a network error\n      reject(new AxiosError('Network Error', AxiosError.ERR_NETWORK, config, request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Handle timeout\n    request.ontimeout = function handleTimeout() {\n      let timeoutErrorMessage = _config.timeout ? 'timeout of ' + _config.timeout + 'ms exceeded' : 'timeout exceeded';\n      const transitional = _config.transitional || transitionalDefaults;\n      if (_config.timeoutErrorMessage) {\n        timeoutErrorMessage = _config.timeoutErrorMessage;\n      }\n      reject(new AxiosError(\n        timeoutErrorMessage,\n        transitional.clarifyTimeoutError ? AxiosError.ETIMEDOUT : AxiosError.ECONNABORTED,\n        config,\n        request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Remove Content-Type if data is undefined\n    requestData === undefined && requestHeaders.setContentType(null);\n\n    // Add headers to the request\n    if ('setRequestHeader' in request) {\n      utils.forEach(requestHeaders.toJSON(), function setRequestHeader(val, key) {\n        request.setRequestHeader(key, val);\n      });\n    }\n\n    // Add withCredentials to request if needed\n    if (!utils.isUndefined(_config.withCredentials)) {\n      request.withCredentials = !!_config.withCredentials;\n    }\n\n    // Add responseType to request if needed\n    if (responseType && responseType !== 'json') {\n      request.responseType = _config.responseType;\n    }\n\n    // Handle progress if needed\n    if (onDownloadProgress) {\n      ([downloadThrottled, flushDownload] = progressEventReducer(onDownloadProgress, true));\n      request.addEventListener('progress', downloadThrottled);\n    }\n\n    // Not all browsers support upload events\n    if (onUploadProgress && request.upload) {\n      ([uploadThrottled, flushUpload] = progressEventReducer(onUploadProgress));\n\n      request.upload.addEventListener('progress', uploadThrottled);\n\n      request.upload.addEventListener('loadend', flushUpload);\n    }\n\n    if (_config.cancelToken || _config.signal) {\n      // Handle cancellation\n      // eslint-disable-next-line func-names\n      onCanceled = cancel => {\n        if (!request) {\n          return;\n        }\n        reject(!cancel || cancel.type ? new CanceledError(null, config, request) : cancel);\n        request.abort();\n        request = null;\n      };\n\n      _config.cancelToken && _config.cancelToken.subscribe(onCanceled);\n      if (_config.signal) {\n        _config.signal.aborted ? onCanceled() : _config.signal.addEventListener('abort', onCanceled);\n      }\n    }\n\n    const protocol = parseProtocol(_config.url);\n\n    if (protocol && platform.protocols.indexOf(protocol) === -1) {\n      reject(new AxiosError('Unsupported protocol ' + protocol + ':', AxiosError.ERR_BAD_REQUEST, config));\n      return;\n    }\n\n\n    // Send the request\n    request.send(requestData || null);\n  });\n}\n","'use strict';\n\nexport default function parseProtocol(url) {\n  const match = /^([-+\\w]{1,25})(:?\\/\\/|:)/.exec(url);\n  return match && match[1] || '';\n}\n","import CanceledError from \"../cancel/CanceledError.js\";\nimport AxiosError from \"../core/AxiosError.js\";\nimport utils from '../utils.js';\n\nconst composeSignals = (signals, timeout) => {\n  const {length} = (signals = signals ? signals.filter(Boolean) : []);\n\n  if (timeout || length) {\n    let controller = new AbortController();\n\n    let aborted;\n\n    const onabort = function (reason) {\n      if (!aborted) {\n        aborted = true;\n        unsubscribe();\n        const err = reason instanceof Error ? reason : this.reason;\n        controller.abort(err instanceof AxiosError ? err : new CanceledError(err instanceof Error ? err.message : err));\n      }\n    }\n\n    let timer = timeout && setTimeout(() => {\n      timer = null;\n      onabort(new AxiosError(`timeout ${timeout} of ms exceeded`, AxiosError.ETIMEDOUT))\n    }, timeout)\n\n    const unsubscribe = () => {\n      if (signals) {\n        timer && clearTimeout(timer);\n        timer = null;\n        signals.forEach(signal => {\n          signal.unsubscribe ? signal.unsubscribe(onabort) : signal.removeEventListener('abort', onabort);\n        });\n        signals = null;\n      }\n    }\n\n    signals.forEach((signal) => signal.addEventListener('abort', onabort));\n\n    const {signal} = controller;\n\n    signal.unsubscribe = () => utils.asap(unsubscribe);\n\n    return signal;\n  }\n}\n\nexport default composeSignals;\n","\nexport const streamChunk = function* (chunk, chunkSize) {\n  let len = chunk.byteLength;\n\n  if (!chunkSize || len < chunkSize) {\n    yield chunk;\n    return;\n  }\n\n  let pos = 0;\n  let end;\n\n  while (pos < len) {\n    end = pos + chunkSize;\n    yield chunk.slice(pos, end);\n    pos = end;\n  }\n}\n\nexport const readBytes = async function* (iterable, chunkSize) {\n  for await (const chunk of readStream(iterable)) {\n    yield* streamChunk(chunk, chunkSize);\n  }\n}\n\nconst readStream = async function* (stream) {\n  if (stream[Symbol.asyncIterator]) {\n    yield* stream;\n    return;\n  }\n\n  const reader = stream.getReader();\n  try {\n    for (;;) {\n      const {done, value} = await reader.read();\n      if (done) {\n        break;\n      }\n      yield value;\n    }\n  } finally {\n    await reader.cancel();\n  }\n}\n\nexport const trackStream = (stream, chunkSize, onProgress, onFinish) => {\n  const iterator = readBytes(stream, chunkSize);\n\n  let bytes = 0;\n  let done;\n  let _onFinish = (e) => {\n    if (!done) {\n      done = true;\n      onFinish && onFinish(e);\n    }\n  }\n\n  return new ReadableStream({\n    async pull(controller) {\n      try {\n        const {done, value} = await iterator.next();\n\n        if (done) {\n         _onFinish();\n          controller.close();\n          return;\n        }\n\n        let len = value.byteLength;\n        if (onProgress) {\n          let loadedBytes = bytes += len;\n          onProgress(loadedBytes);\n        }\n        controller.enqueue(new Uint8Array(value));\n      } catch (err) {\n        _onFinish(err);\n        throw err;\n      }\n    },\n    cancel(reason) {\n      _onFinish(reason);\n      return iterator.return();\n    }\n  }, {\n    highWaterMark: 2\n  })\n}\n","import platform from \"../platform/index.js\";\nimport utils from \"../utils.js\";\nimport AxiosError from \"../core/AxiosError.js\";\nimport composeSignals from \"../helpers/composeSignals.js\";\nimport {trackStream} from \"../helpers/trackStream.js\";\nimport AxiosHeaders from \"../core/AxiosHeaders.js\";\nimport {progressEventReducer, progressEventDecorator, asyncDecorator} from \"../helpers/progressEventReducer.js\";\nimport resolveConfig from \"../helpers/resolveConfig.js\";\nimport settle from \"../core/settle.js\";\n\nconst isFetchSupported = typeof fetch === 'function' && typeof Request === 'function' && typeof Response === 'function';\nconst isReadableStreamSupported = isFetchSupported && typeof ReadableStream === 'function';\n\n// used only inside the fetch adapter\nconst encodeText = isFetchSupported && (typeof TextEncoder === 'function' ?\n    ((encoder) => (str) => encoder.encode(str))(new TextEncoder()) :\n    async (str) => new Uint8Array(await new Response(str).arrayBuffer())\n);\n\nconst test = (fn, ...args) => {\n  try {\n    return !!fn(...args);\n  } catch (e) {\n    return false\n  }\n}\n\nconst supportsRequestStream = isReadableStreamSupported && test(() => {\n  let duplexAccessed = false;\n\n  const hasContentType = new Request(platform.origin, {\n    body: new ReadableStream(),\n    method: 'POST',\n    get duplex() {\n      duplexAccessed = true;\n      return 'half';\n    },\n  }).headers.has('Content-Type');\n\n  return duplexAccessed && !hasContentType;\n});\n\nconst DEFAULT_CHUNK_SIZE = 64 * 1024;\n\nconst supportsResponseStream = isReadableStreamSupported &&\n  test(() => utils.isReadableStream(new Response('').body));\n\n\nconst resolvers = {\n  stream: supportsResponseStream && ((res) => res.body)\n};\n\nisFetchSupported && (((res) => {\n  ['text', 'arrayBuffer', 'blob', 'formData', 'stream'].forEach(type => {\n    !resolvers[type] && (resolvers[type] = utils.isFunction(res[type]) ? (res) => res[type]() :\n      (_, config) => {\n        throw new AxiosError(`Response type '${type}' is not supported`, AxiosError.ERR_NOT_SUPPORT, config);\n      })\n  });\n})(new Response));\n\nconst getBodyLength = async (body) => {\n  if (body == null) {\n    return 0;\n  }\n\n  if(utils.isBlob(body)) {\n    return body.size;\n  }\n\n  if(utils.isSpecCompliantForm(body)) {\n    const _request = new Request(platform.origin, {\n      method: 'POST',\n      body,\n    });\n    return (await _request.arrayBuffer()).byteLength;\n  }\n\n  if(utils.isArrayBufferView(body) || utils.isArrayBuffer(body)) {\n    return body.byteLength;\n  }\n\n  if(utils.isURLSearchParams(body)) {\n    body = body + '';\n  }\n\n  if(utils.isString(body)) {\n    return (await encodeText(body)).byteLength;\n  }\n}\n\nconst resolveBodyLength = async (headers, body) => {\n  const length = utils.toFiniteNumber(headers.getContentLength());\n\n  return length == null ? getBodyLength(body) : length;\n}\n\nexport default isFetchSupported && (async (config) => {\n  let {\n    url,\n    method,\n    data,\n    signal,\n    cancelToken,\n    timeout,\n    onDownloadProgress,\n    onUploadProgress,\n    responseType,\n    headers,\n    withCredentials = 'same-origin',\n    fetchOptions\n  } = resolveConfig(config);\n\n  responseType = responseType ? (responseType + '').toLowerCase() : 'text';\n\n  let composedSignal = composeSignals([signal, cancelToken && cancelToken.toAbortSignal()], timeout);\n\n  let request;\n\n  const unsubscribe = composedSignal && composedSignal.unsubscribe && (() => {\n      composedSignal.unsubscribe();\n  });\n\n  let requestContentLength;\n\n  try {\n    if (\n      onUploadProgress && supportsRequestStream && method !== 'get' && method !== 'head' &&\n      (requestContentLength = await resolveBodyLength(headers, data)) !== 0\n    ) {\n      let _request = new Request(url, {\n        method: 'POST',\n        body: data,\n        duplex: \"half\"\n      });\n\n      let contentTypeHeader;\n\n      if (utils.isFormData(data) && (contentTypeHeader = _request.headers.get('content-type'))) {\n        headers.setContentType(contentTypeHeader)\n      }\n\n      if (_request.body) {\n        const [onProgress, flush] = progressEventDecorator(\n          requestContentLength,\n          progressEventReducer(asyncDecorator(onUploadProgress))\n        );\n\n        data = trackStream(_request.body, DEFAULT_CHUNK_SIZE, onProgress, flush);\n      }\n    }\n\n    if (!utils.isString(withCredentials)) {\n      withCredentials = withCredentials ? 'include' : 'omit';\n    }\n\n    // Cloudflare Workers throws when credentials are defined\n    // see https://github.com/cloudflare/workerd/issues/902\n    const isCredentialsSupported = \"credentials\" in Request.prototype;\n    request = new Request(url, {\n      ...fetchOptions,\n      signal: composedSignal,\n      method: method.toUpperCase(),\n      headers: headers.normalize().toJSON(),\n      body: data,\n      duplex: \"half\",\n      credentials: isCredentialsSupported ? withCredentials : undefined\n    });\n\n    let response = await fetch(request);\n\n    const isStreamResponse = supportsResponseStream && (responseType === 'stream' || responseType === 'response');\n\n    if (supportsResponseStream && (onDownloadProgress || (isStreamResponse && unsubscribe))) {\n      const options = {};\n\n      ['status', 'statusText', 'headers'].forEach(prop => {\n        options[prop] = response[prop];\n      });\n\n      const responseContentLength = utils.toFiniteNumber(response.headers.get('content-length'));\n\n      const [onProgress, flush] = onDownloadProgress && progressEventDecorator(\n        responseContentLength,\n        progressEventReducer(asyncDecorator(onDownloadProgress), true)\n      ) || [];\n\n      response = new Response(\n        trackStream(response.body, DEFAULT_CHUNK_SIZE, onProgress, () => {\n          flush && flush();\n          unsubscribe && unsubscribe();\n        }),\n        options\n      );\n    }\n\n    responseType = responseType || 'text';\n\n    let responseData = await resolvers[utils.findKey(resolvers, responseType) || 'text'](response, config);\n\n    !isStreamResponse && unsubscribe && unsubscribe();\n\n    return await new Promise((resolve, reject) => {\n      settle(resolve, reject, {\n        data: responseData,\n        headers: AxiosHeaders.from(response.headers),\n        status: response.status,\n        statusText: response.statusText,\n        config,\n        request\n      })\n    })\n  } catch (err) {\n    unsubscribe && unsubscribe();\n\n    if (err && err.name === 'TypeError' && /fetch/i.test(err.message)) {\n      throw Object.assign(\n        new AxiosError('Network Error', AxiosError.ERR_NETWORK, config, request),\n        {\n          cause: err.cause || err\n        }\n      )\n    }\n\n    throw AxiosError.from(err, err && err.code, config, request);\n  }\n});\n\n\n","import utils from '../utils.js';\nimport httpAdapter from './http.js';\nimport xhrAdapter from './xhr.js';\nimport fetchAdapter from './fetch.js';\nimport AxiosError from \"../core/AxiosError.js\";\n\nconst knownAdapters = {\n  http: httpAdapter,\n  xhr: xhrAdapter,\n  fetch: fetchAdapter\n}\n\nutils.forEach(knownAdapters, (fn, value) => {\n  if (fn) {\n    try {\n      Object.defineProperty(fn, 'name', {value});\n    } catch (e) {\n      // eslint-disable-next-line no-empty\n    }\n    Object.defineProperty(fn, 'adapterName', {value});\n  }\n});\n\nconst renderReason = (reason) => `- ${reason}`;\n\nconst isResolvedHandle = (adapter) => utils.isFunction(adapter) || adapter === null || adapter === false;\n\nexport default {\n  getAdapter: (adapters) => {\n    adapters = utils.isArray(adapters) ? adapters : [adapters];\n\n    const {length} = adapters;\n    let nameOrAdapter;\n    let adapter;\n\n    const rejectedReasons = {};\n\n    for (let i = 0; i < length; i++) {\n      nameOrAdapter = adapters[i];\n      let id;\n\n      adapter = nameOrAdapter;\n\n      if (!isResolvedHandle(nameOrAdapter)) {\n        adapter = knownAdapters[(id = String(nameOrAdapter)).toLowerCase()];\n\n        if (adapter === undefined) {\n          throw new AxiosError(`Unknown adapter '${id}'`);\n        }\n      }\n\n      if (adapter) {\n        break;\n      }\n\n      rejectedReasons[id || '#' + i] = adapter;\n    }\n\n    if (!adapter) {\n\n      const reasons = Object.entries(rejectedReasons)\n        .map(([id, state]) => `adapter ${id} ` +\n          (state === false ? 'is not supported by the environment' : 'is not available in the build')\n        );\n\n      let s = length ?\n        (reasons.length > 1 ? 'since :\\n' + reasons.map(renderReason).join('\\n') : ' ' + renderReason(reasons[0])) :\n        'as no adapter specified';\n\n      throw new AxiosError(\n        `There is no suitable adapter to dispatch the request ` + s,\n        'ERR_NOT_SUPPORT'\n      );\n    }\n\n    return adapter;\n  },\n  adapters: knownAdapters\n}\n","// eslint-disable-next-line strict\nexport default null;\n","'use strict';\n\nimport transformData from './transformData.js';\nimport isCancel from '../cancel/isCancel.js';\nimport defaults from '../defaults/index.js';\nimport CanceledError from '../cancel/CanceledError.js';\nimport AxiosHeaders from '../core/AxiosHeaders.js';\nimport adapters from \"../adapters/adapters.js\";\n\n/**\n * Throws a `CanceledError` if cancellation has been requested.\n *\n * @param {Object} config The config that is to be used for the request\n *\n * @returns {void}\n */\nfunction throwIfCancellationRequested(config) {\n  if (config.cancelToken) {\n    config.cancelToken.throwIfRequested();\n  }\n\n  if (config.signal && config.signal.aborted) {\n    throw new CanceledError(null, config);\n  }\n}\n\n/**\n * Dispatch a request to the server using the configured adapter.\n *\n * @param {object} config The config that is to be used for the request\n *\n * @returns {Promise} The Promise to be fulfilled\n */\nexport default function dispatchRequest(config) {\n  throwIfCancellationRequested(config);\n\n  config.headers = AxiosHeaders.from(config.headers);\n\n  // Transform request data\n  config.data = transformData.call(\n    config,\n    config.transformRequest\n  );\n\n  if (['post', 'put', 'patch'].indexOf(config.method) !== -1) {\n    config.headers.setContentType('application/x-www-form-urlencoded', false);\n  }\n\n  const adapter = adapters.getAdapter(config.adapter || defaults.adapter);\n\n  return adapter(config).then(function onAdapterResolution(response) {\n    throwIfCancellationRequested(config);\n\n    // Transform response data\n    response.data = transformData.call(\n      config,\n      config.transformResponse,\n      response\n    );\n\n    response.headers = AxiosHeaders.from(response.headers);\n\n    return response;\n  }, function onAdapterRejection(reason) {\n    if (!isCancel(reason)) {\n      throwIfCancellationRequested(config);\n\n      // Transform response data\n      if (reason && reason.response) {\n        reason.response.data = transformData.call(\n          config,\n          config.transformResponse,\n          reason.response\n        );\n        reason.response.headers = AxiosHeaders.from(reason.response.headers);\n      }\n    }\n\n    return Promise.reject(reason);\n  });\n}\n","export const VERSION = \"1.7.9\";","'use strict';\n\nimport {VERSION} from '../env/data.js';\nimport AxiosError from '../core/AxiosError.js';\n\nconst validators = {};\n\n// eslint-disable-next-line func-names\n['object', 'boolean', 'number', 'function', 'string', 'symbol'].forEach((type, i) => {\n  validators[type] = function validator(thing) {\n    return typeof thing === type || 'a' + (i < 1 ? 'n ' : ' ') + type;\n  };\n});\n\nconst deprecatedWarnings = {};\n\n/**\n * Transitional option validator\n *\n * @param {function|boolean?} validator - set to false if the transitional option has been removed\n * @param {string?} version - deprecated version / removed since version\n * @param {string?} message - some message with additional info\n *\n * @returns {function}\n */\nvalidators.transitional = function transitional(validator, version, message) {\n  function formatMessage(opt, desc) {\n    return '[Axios v' + VERSION + '] Transitional option \\'' + opt + '\\'' + desc + (message ? '. ' + message : '');\n  }\n\n  // eslint-disable-next-line func-names\n  return (value, opt, opts) => {\n    if (validator === false) {\n      throw new AxiosError(\n        formatMessage(opt, ' has been removed' + (version ? ' in ' + version : '')),\n        AxiosError.ERR_DEPRECATED\n      );\n    }\n\n    if (version && !deprecatedWarnings[opt]) {\n      deprecatedWarnings[opt] = true;\n      // eslint-disable-next-line no-console\n      console.warn(\n        formatMessage(\n          opt,\n          ' has been deprecated since v' + version + ' and will be removed in the near future'\n        )\n      );\n    }\n\n    return validator ? validator(value, opt, opts) : true;\n  };\n};\n\nvalidators.spelling = function spelling(correctSpelling) {\n  return (value, opt) => {\n    // eslint-disable-next-line no-console\n    console.warn(`${opt} is likely a misspelling of ${correctSpelling}`);\n    return true;\n  }\n};\n\n/**\n * Assert object's properties type\n *\n * @param {object} options\n * @param {object} schema\n * @param {boolean?} allowUnknown\n *\n * @returns {object}\n */\n\nfunction assertOptions(options, schema, allowUnknown) {\n  if (typeof options !== 'object') {\n    throw new AxiosError('options must be an object', AxiosError.ERR_BAD_OPTION_VALUE);\n  }\n  const keys = Object.keys(options);\n  let i = keys.length;\n  while (i-- > 0) {\n    const opt = keys[i];\n    const validator = schema[opt];\n    if (validator) {\n      const value = options[opt];\n      const result = value === undefined || validator(value, opt, options);\n      if (result !== true) {\n        throw new AxiosError('option ' + opt + ' must be ' + result, AxiosError.ERR_BAD_OPTION_VALUE);\n      }\n      continue;\n    }\n    if (allowUnknown !== true) {\n      throw new AxiosError('Unknown option ' + opt, AxiosError.ERR_BAD_OPTION);\n    }\n  }\n}\n\nexport default {\n  assertOptions,\n  validators\n};\n","'use strict';\n\nimport utils from './../utils.js';\nimport buildURL from '../helpers/buildURL.js';\nimport InterceptorManager from './InterceptorManager.js';\nimport dispatchRequest from './dispatchRequest.js';\nimport mergeConfig from './mergeConfig.js';\nimport buildFullPath from './buildFullPath.js';\nimport validator from '../helpers/validator.js';\nimport AxiosHeaders from './AxiosHeaders.js';\n\nconst validators = validator.validators;\n\n/**\n * Create a new instance of Axios\n *\n * @param {Object} instanceConfig The default config for the instance\n *\n * @return {Axios} A new instance of Axios\n */\nclass Axios {\n  constructor(instanceConfig) {\n    this.defaults = instanceConfig;\n    this.interceptors = {\n      request: new InterceptorManager(),\n      response: new InterceptorManager()\n    };\n  }\n\n  /**\n   * Dispatch a request\n   *\n   * @param {String|Object} configOrUrl The config specific for this request (merged with this.defaults)\n   * @param {?Object} config\n   *\n   * @returns {Promise} The Promise to be fulfilled\n   */\n  async request(configOrUrl, config) {\n    try {\n      return await this._request(configOrUrl, config);\n    } catch (err) {\n      if (err instanceof Error) {\n        let dummy = {};\n\n        Error.captureStackTrace ? Error.captureStackTrace(dummy) : (dummy = new Error());\n\n        // slice off the Error: ... line\n        const stack = dummy.stack ? dummy.stack.replace(/^.+\\n/, '') : '';\n        try {\n          if (!err.stack) {\n            err.stack = stack;\n            // match without the 2 top stack lines\n          } else if (stack && !String(err.stack).endsWith(stack.replace(/^.+\\n.+\\n/, ''))) {\n            err.stack += '\\n' + stack\n          }\n        } catch (e) {\n          // ignore the case where \"stack\" is an un-writable property\n        }\n      }\n\n      throw err;\n    }\n  }\n\n  _request(configOrUrl, config) {\n    /*eslint no-param-reassign:0*/\n    // Allow for axios('example/url'[, config]) a la fetch API\n    if (typeof configOrUrl === 'string') {\n      config = config || {};\n      config.url = configOrUrl;\n    } else {\n      config = configOrUrl || {};\n    }\n\n    config = mergeConfig(this.defaults, config);\n\n    const {transitional, paramsSerializer, headers} = config;\n\n    if (transitional !== undefined) {\n      validator.assertOptions(transitional, {\n        silentJSONParsing: validators.transitional(validators.boolean),\n        forcedJSONParsing: validators.transitional(validators.boolean),\n        clarifyTimeoutError: validators.transitional(validators.boolean)\n      }, false);\n    }\n\n    if (paramsSerializer != null) {\n      if (utils.isFunction(paramsSerializer)) {\n        config.paramsSerializer = {\n          serialize: paramsSerializer\n        }\n      } else {\n        validator.assertOptions(paramsSerializer, {\n          encode: validators.function,\n          serialize: validators.function\n        }, true);\n      }\n    }\n\n    validator.assertOptions(config, {\n      baseUrl: validators.spelling('baseURL'),\n      withXsrfToken: validators.spelling('withXSRFToken')\n    }, true);\n\n    // Set config.method\n    config.method = (config.method || this.defaults.method || 'get').toLowerCase();\n\n    // Flatten headers\n    let contextHeaders = headers && utils.merge(\n      headers.common,\n      headers[config.method]\n    );\n\n    headers && utils.forEach(\n      ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],\n      (method) => {\n        delete headers[method];\n      }\n    );\n\n    config.headers = AxiosHeaders.concat(contextHeaders, headers);\n\n    // filter out skipped interceptors\n    const requestInterceptorChain = [];\n    let synchronousRequestInterceptors = true;\n    this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {\n      if (typeof interceptor.runWhen === 'function' && interceptor.runWhen(config) === false) {\n        return;\n      }\n\n      synchronousRequestInterceptors = synchronousRequestInterceptors && interceptor.synchronous;\n\n      requestInterceptorChain.unshift(interceptor.fulfilled, interceptor.rejected);\n    });\n\n    const responseInterceptorChain = [];\n    this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {\n      responseInterceptorChain.push(interceptor.fulfilled, interceptor.rejected);\n    });\n\n    let promise;\n    let i = 0;\n    let len;\n\n    if (!synchronousRequestInterceptors) {\n      const chain = [dispatchRequest.bind(this), undefined];\n      chain.unshift.apply(chain, requestInterceptorChain);\n      chain.push.apply(chain, responseInterceptorChain);\n      len = chain.length;\n\n      promise = Promise.resolve(config);\n\n      while (i < len) {\n        promise = promise.then(chain[i++], chain[i++]);\n      }\n\n      return promise;\n    }\n\n    len = requestInterceptorChain.length;\n\n    let newConfig = config;\n\n    i = 0;\n\n    while (i < len) {\n      const onFulfilled = requestInterceptorChain[i++];\n      const onRejected = requestInterceptorChain[i++];\n      try {\n        newConfig = onFulfilled(newConfig);\n      } catch (error) {\n        onRejected.call(this, error);\n        break;\n      }\n    }\n\n    try {\n      promise = dispatchRequest.call(this, newConfig);\n    } catch (error) {\n      return Promise.reject(error);\n    }\n\n    i = 0;\n    len = responseInterceptorChain.length;\n\n    while (i < len) {\n      promise = promise.then(responseInterceptorChain[i++], responseInterceptorChain[i++]);\n    }\n\n    return promise;\n  }\n\n  getUri(config) {\n    config = mergeConfig(this.defaults, config);\n    const fullPath = buildFullPath(config.baseURL, config.url);\n    return buildURL(fullPath, config.params, config.paramsSerializer);\n  }\n}\n\n// Provide aliases for supported request methods\nutils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {\n  /*eslint func-names:0*/\n  Axios.prototype[method] = function(url, config) {\n    return this.request(mergeConfig(config || {}, {\n      method,\n      url,\n      data: (config || {}).data\n    }));\n  };\n});\n\nutils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {\n  /*eslint func-names:0*/\n\n  function generateHTTPMethod(isForm) {\n    return function httpMethod(url, data, config) {\n      return this.request(mergeConfig(config || {}, {\n        method,\n        headers: isForm ? {\n          'Content-Type': 'multipart/form-data'\n        } : {},\n        url,\n        data\n      }));\n    };\n  }\n\n  Axios.prototype[method] = generateHTTPMethod();\n\n  Axios.prototype[method + 'Form'] = generateHTTPMethod(true);\n});\n\nexport default Axios;\n","'use strict';\n\nimport CanceledError from './CanceledError.js';\n\n/**\n * A `CancelToken` is an object that can be used to request cancellation of an operation.\n *\n * @param {Function} executor The executor function.\n *\n * @returns {CancelToken}\n */\nclass CancelToken {\n  constructor(executor) {\n    if (typeof executor !== 'function') {\n      throw new TypeError('executor must be a function.');\n    }\n\n    let resolvePromise;\n\n    this.promise = new Promise(function promiseExecutor(resolve) {\n      resolvePromise = resolve;\n    });\n\n    const token = this;\n\n    // eslint-disable-next-line func-names\n    this.promise.then(cancel => {\n      if (!token._listeners) return;\n\n      let i = token._listeners.length;\n\n      while (i-- > 0) {\n        token._listeners[i](cancel);\n      }\n      token._listeners = null;\n    });\n\n    // eslint-disable-next-line func-names\n    this.promise.then = onfulfilled => {\n      let _resolve;\n      // eslint-disable-next-line func-names\n      const promise = new Promise(resolve => {\n        token.subscribe(resolve);\n        _resolve = resolve;\n      }).then(onfulfilled);\n\n      promise.cancel = function reject() {\n        token.unsubscribe(_resolve);\n      };\n\n      return promise;\n    };\n\n    executor(function cancel(message, config, request) {\n      if (token.reason) {\n        // Cancellation has already been requested\n        return;\n      }\n\n      token.reason = new CanceledError(message, config, request);\n      resolvePromise(token.reason);\n    });\n  }\n\n  /**\n   * Throws a `CanceledError` if cancellation has been requested.\n   */\n  throwIfRequested() {\n    if (this.reason) {\n      throw this.reason;\n    }\n  }\n\n  /**\n   * Subscribe to the cancel signal\n   */\n\n  subscribe(listener) {\n    if (this.reason) {\n      listener(this.reason);\n      return;\n    }\n\n    if (this._listeners) {\n      this._listeners.push(listener);\n    } else {\n      this._listeners = [listener];\n    }\n  }\n\n  /**\n   * Unsubscribe from the cancel signal\n   */\n\n  unsubscribe(listener) {\n    if (!this._listeners) {\n      return;\n    }\n    const index = this._listeners.indexOf(listener);\n    if (index !== -1) {\n      this._listeners.splice(index, 1);\n    }\n  }\n\n  toAbortSignal() {\n    const controller = new AbortController();\n\n    const abort = (err) => {\n      controller.abort(err);\n    };\n\n    this.subscribe(abort);\n\n    controller.signal.unsubscribe = () => this.unsubscribe(abort);\n\n    return controller.signal;\n  }\n\n  /**\n   * Returns an object that contains a new `CancelToken` and a function that, when called,\n   * cancels the `CancelToken`.\n   */\n  static source() {\n    let cancel;\n    const token = new CancelToken(function executor(c) {\n      cancel = c;\n    });\n    return {\n      token,\n      cancel\n    };\n  }\n}\n\nexport default CancelToken;\n","const HttpStatusCode = {\n  Continue: 100,\n  SwitchingProtocols: 101,\n  Processing: 102,\n  EarlyHints: 103,\n  Ok: 200,\n  Created: 201,\n  Accepted: 202,\n  NonAuthoritativeInformation: 203,\n  NoContent: 204,\n  ResetContent: 205,\n  PartialContent: 206,\n  MultiStatus: 207,\n  AlreadyReported: 208,\n  ImUsed: 226,\n  MultipleChoices: 300,\n  MovedPermanently: 301,\n  Found: 302,\n  SeeOther: 303,\n  NotModified: 304,\n  UseProxy: 305,\n  Unused: 306,\n  TemporaryRedirect: 307,\n  PermanentRedirect: 308,\n  BadRequest: 400,\n  Unauthorized: 401,\n  PaymentRequired: 402,\n  Forbidden: 403,\n  NotFound: 404,\n  MethodNotAllowed: 405,\n  NotAcceptable: 406,\n  ProxyAuthenticationRequired: 407,\n  RequestTimeout: 408,\n  Conflict: 409,\n  Gone: 410,\n  LengthRequired: 411,\n  PreconditionFailed: 412,\n  PayloadTooLarge: 413,\n  UriTooLong: 414,\n  UnsupportedMediaType: 415,\n  RangeNotSatisfiable: 416,\n  ExpectationFailed: 417,\n  ImATeapot: 418,\n  MisdirectedRequest: 421,\n  UnprocessableEntity: 422,\n  Locked: 423,\n  FailedDependency: 424,\n  TooEarly: 425,\n  UpgradeRequired: 426,\n  PreconditionRequired: 428,\n  TooManyRequests: 429,\n  RequestHeaderFieldsTooLarge: 431,\n  UnavailableForLegalReasons: 451,\n  InternalServerError: 500,\n  NotImplemented: 501,\n  BadGateway: 502,\n  ServiceUnavailable: 503,\n  GatewayTimeout: 504,\n  HttpVersionNotSupported: 505,\n  VariantAlsoNegotiates: 506,\n  InsufficientStorage: 507,\n  LoopDetected: 508,\n  NotExtended: 510,\n  NetworkAuthenticationRequired: 511,\n};\n\nObject.entries(HttpStatusCode).forEach(([key, value]) => {\n  HttpStatusCode[value] = key;\n});\n\nexport default HttpStatusCode;\n","'use strict';\n\nimport utils from './utils.js';\nimport bind from './helpers/bind.js';\nimport Axios from './core/Axios.js';\nimport mergeConfig from './core/mergeConfig.js';\nimport defaults from './defaults/index.js';\nimport formDataToJSON from './helpers/formDataToJSON.js';\nimport CanceledError from './cancel/CanceledError.js';\nimport CancelToken from './cancel/CancelToken.js';\nimport isCancel from './cancel/isCancel.js';\nimport {VERSION} from './env/data.js';\nimport toFormData from './helpers/toFormData.js';\nimport AxiosError from './core/AxiosError.js';\nimport spread from './helpers/spread.js';\nimport isAxiosError from './helpers/isAxiosError.js';\nimport AxiosHeaders from \"./core/AxiosHeaders.js\";\nimport adapters from './adapters/adapters.js';\nimport HttpStatusCode from './helpers/HttpStatusCode.js';\n\n/**\n * Create an instance of Axios\n *\n * @param {Object} defaultConfig The default config for the instance\n *\n * @returns {Axios} A new instance of Axios\n */\nfunction createInstance(defaultConfig) {\n  const context = new Axios(defaultConfig);\n  const instance = bind(Axios.prototype.request, context);\n\n  // Copy axios.prototype to instance\n  utils.extend(instance, Axios.prototype, context, {allOwnKeys: true});\n\n  // Copy context to instance\n  utils.extend(instance, context, null, {allOwnKeys: true});\n\n  // Factory for creating new instances\n  instance.create = function create(instanceConfig) {\n    return createInstance(mergeConfig(defaultConfig, instanceConfig));\n  };\n\n  return instance;\n}\n\n// Create the default instance to be exported\nconst axios = createInstance(defaults);\n\n// Expose Axios class to allow class inheritance\naxios.Axios = Axios;\n\n// Expose Cancel & CancelToken\naxios.CanceledError = CanceledError;\naxios.CancelToken = CancelToken;\naxios.isCancel = isCancel;\naxios.VERSION = VERSION;\naxios.toFormData = toFormData;\n\n// Expose AxiosError class\naxios.AxiosError = AxiosError;\n\n// alias for CanceledError for backward compatibility\naxios.Cancel = axios.CanceledError;\n\n// Expose all/spread\naxios.all = function all(promises) {\n  return Promise.all(promises);\n};\n\naxios.spread = spread;\n\n// Expose isAxiosError\naxios.isAxiosError = isAxiosError;\n\n// Expose mergeConfig\naxios.mergeConfig = mergeConfig;\n\naxios.AxiosHeaders = AxiosHeaders;\n\naxios.formToJSON = thing => formDataToJSON(utils.isHTMLForm(thing) ? new FormData(thing) : thing);\n\naxios.getAdapter = adapters.getAdapter;\n\naxios.HttpStatusCode = HttpStatusCode;\n\naxios.default = axios;\n\n// this module should only have a default export\nexport default axios\n","'use strict';\n\n/**\n * Syntactic sugar for invoking a function and expanding an array for arguments.\n *\n * Common use case would be to use `Function.prototype.apply`.\n *\n *  ```js\n *  function f(x, y, z) {}\n *  var args = [1, 2, 3];\n *  f.apply(null, args);\n *  ```\n *\n * With `spread` this example can be re-written.\n *\n *  ```js\n *  spread(function(x, y, z) {})([1, 2, 3]);\n *  ```\n *\n * @param {Function} callback\n *\n * @returns {Function}\n */\nexport default function spread(callback) {\n  return function wrap(arr) {\n    return callback.apply(null, arr);\n  };\n}\n","'use strict';\n\nimport utils from './../utils.js';\n\n/**\n * Determines whether the payload is an error thrown by Axios\n *\n * @param {*} payload The value to test\n *\n * @returns {boolean} True if the payload is an error thrown by Axios, otherwise false\n */\nexport default function isAxiosError(payload) {\n  return utils.isObject(payload) && (payload.isAxiosError === true);\n}\n","import axios from './lib/axios.js';\n\n// This module is intended to unwrap Axios default export as named.\n// Keep top-level export same with static properties\n// so that it can keep same with es module or cjs\nconst {\n  Axios,\n  AxiosError,\n  CanceledError,\n  isCancel,\n  CancelToken,\n  VERSION,\n  all,\n  Cancel,\n  isAxiosError,\n  spread,\n  toFormData,\n  AxiosHeaders,\n  HttpStatusCode,\n  formToJSON,\n  getAdapter,\n  mergeConfig\n} = axios;\n\nexport {\n  axios as default,\n  Axios,\n  AxiosError,\n  CanceledError,\n  isCancel,\n  CancelToken,\n  VERSION,\n  all,\n  Cancel,\n  isAxiosError,\n  spread,\n  toFormData,\n  AxiosHeaders,\n  HttpStatusCode,\n  formToJSON,\n  getAdapter,\n  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\ No newline at end of file
diff --git a/backend/node_modules/axios/dist/node/axios.cjs b/backend/node_modules/axios/dist/node/axios.cjs
new file mode 100644
index 0000000..30c6c09
--- /dev/null
+++ b/backend/node_modules/axios/dist/node/axios.cjs
@@ -0,0 +1,4752 @@
+// Axios v1.7.9 Copyright (c) 2024 Matt Zabriskie and contributors
+'use strict';
+
+const FormData$1 = require('form-data');
+const url = require('url');
+const proxyFromEnv = require('proxy-from-env');
+const http = require('http');
+const https = require('https');
+const util = require('util');
+const followRedirects = require('follow-redirects');
+const zlib = require('zlib');
+const stream = require('stream');
+const events = require('events');
+
+function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }
+
+const FormData__default = /*#__PURE__*/_interopDefaultLegacy(FormData$1);
+const url__default = /*#__PURE__*/_interopDefaultLegacy(url);
+const proxyFromEnv__default = /*#__PURE__*/_interopDefaultLegacy(proxyFromEnv);
+const http__default = /*#__PURE__*/_interopDefaultLegacy(http);
+const https__default = /*#__PURE__*/_interopDefaultLegacy(https);
+const util__default = /*#__PURE__*/_interopDefaultLegacy(util);
+const followRedirects__default = /*#__PURE__*/_interopDefaultLegacy(followRedirects);
+const zlib__default = /*#__PURE__*/_interopDefaultLegacy(zlib);
+const stream__default = /*#__PURE__*/_interopDefaultLegacy(stream);
+
+function bind(fn, thisArg) {
+  return function wrap() {
+    return fn.apply(thisArg, arguments);
+  };
+}
+
+// utils is a library of generic helper functions non-specific to axios
+
+const {toString} = Object.prototype;
+const {getPrototypeOf} = Object;
+
+const kindOf = (cache => thing => {
+    const str = toString.call(thing);
+    return cache[str] || (cache[str] = str.slice(8, -1).toLowerCase());
+})(Object.create(null));
+
+const kindOfTest = (type) => {
+  type = type.toLowerCase();
+  return (thing) => kindOf(thing) === type
+};
+
+const typeOfTest = type => thing => typeof thing === type;
+
+/**
+ * Determine if a value is an Array
+ *
+ * @param {Object} val The value to test
+ *
+ * @returns {boolean} True if value is an Array, otherwise false
+ */
+const {isArray} = Array;
+
+/**
+ * Determine if a value is undefined
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if the value is undefined, otherwise false
+ */
+const isUndefined = typeOfTest('undefined');
+
+/**
+ * Determine if a value is a Buffer
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a Buffer, otherwise false
+ */
+function isBuffer(val) {
+  return val !== null && !isUndefined(val) && val.constructor !== null && !isUndefined(val.constructor)
+    && isFunction(val.constructor.isBuffer) && val.constructor.isBuffer(val);
+}
+
+/**
+ * Determine if a value is an ArrayBuffer
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is an ArrayBuffer, otherwise false
+ */
+const isArrayBuffer = kindOfTest('ArrayBuffer');
+
+
+/**
+ * Determine if a value is a view on an ArrayBuffer
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false
+ */
+function isArrayBufferView(val) {
+  let result;
+  if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) {
+    result = ArrayBuffer.isView(val);
+  } else {
+    result = (val) && (val.buffer) && (isArrayBuffer(val.buffer));
+  }
+  return result;
+}
+
+/**
+ * Determine if a value is a String
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a String, otherwise false
+ */
+const isString = typeOfTest('string');
+
+/**
+ * Determine if a value is a Function
+ *
+ * @param {*} val The value to test
+ * @returns {boolean} True if value is a Function, otherwise false
+ */
+const isFunction = typeOfTest('function');
+
+/**
+ * Determine if a value is a Number
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a Number, otherwise false
+ */
+const isNumber = typeOfTest('number');
+
+/**
+ * Determine if a value is an Object
+ *
+ * @param {*} thing The value to test
+ *
+ * @returns {boolean} True if value is an Object, otherwise false
+ */
+const isObject = (thing) => thing !== null && typeof thing === 'object';
+
+/**
+ * Determine if a value is a Boolean
+ *
+ * @param {*} thing The value to test
+ * @returns {boolean} True if value is a Boolean, otherwise false
+ */
+const isBoolean = thing => thing === true || thing === false;
+
+/**
+ * Determine if a value is a plain Object
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a plain Object, otherwise false
+ */
+const isPlainObject = (val) => {
+  if (kindOf(val) !== 'object') {
+    return false;
+  }
+
+  const prototype = getPrototypeOf(val);
+  return (prototype === null || prototype === Object.prototype || Object.getPrototypeOf(prototype) === null) && !(Symbol.toStringTag in val) && !(Symbol.iterator in val);
+};
+
+/**
+ * Determine if a value is a Date
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a Date, otherwise false
+ */
+const isDate = kindOfTest('Date');
+
+/**
+ * Determine if a value is a File
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a File, otherwise false
+ */
+const isFile = kindOfTest('File');
+
+/**
+ * Determine if a value is a Blob
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a Blob, otherwise false
+ */
+const isBlob = kindOfTest('Blob');
+
+/**
+ * Determine if a value is a FileList
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a File, otherwise false
+ */
+const isFileList = kindOfTest('FileList');
+
+/**
+ * Determine if a value is a Stream
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a Stream, otherwise false
+ */
+const isStream = (val) => isObject(val) && isFunction(val.pipe);
+
+/**
+ * Determine if a value is a FormData
+ *
+ * @param {*} thing The value to test
+ *
+ * @returns {boolean} True if value is an FormData, otherwise false
+ */
+const isFormData = (thing) => {
+  let kind;
+  return thing && (
+    (typeof FormData === 'function' && thing instanceof FormData) || (
+      isFunction(thing.append) && (
+        (kind = kindOf(thing)) === 'formdata' ||
+        // detect form-data instance
+        (kind === 'object' && isFunction(thing.toString) && thing.toString() === '[object FormData]')
+      )
+    )
+  )
+};
+
+/**
+ * Determine if a value is a URLSearchParams object
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a URLSearchParams object, otherwise false
+ */
+const isURLSearchParams = kindOfTest('URLSearchParams');
+
+const [isReadableStream, isRequest, isResponse, isHeaders] = ['ReadableStream', 'Request', 'Response', 'Headers'].map(kindOfTest);
+
+/**
+ * Trim excess whitespace off the beginning and end of a string
+ *
+ * @param {String} str The String to trim
+ *
+ * @returns {String} The String freed of excess whitespace
+ */
+const trim = (str) => str.trim ?
+  str.trim() : str.replace(/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, '');
+
+/**
+ * Iterate over an Array or an Object invoking a function for each item.
+ *
+ * If `obj` is an Array callback will be called passing
+ * the value, index, and complete array for each item.
+ *
+ * If 'obj' is an Object callback will be called passing
+ * the value, key, and complete object for each property.
+ *
+ * @param {Object|Array} obj The object to iterate
+ * @param {Function} fn The callback to invoke for each item
+ *
+ * @param {Boolean} [allOwnKeys = false]
+ * @returns {any}
+ */
+function forEach(obj, fn, {allOwnKeys = false} = {}) {
+  // Don't bother if no value provided
+  if (obj === null || typeof obj === 'undefined') {
+    return;
+  }
+
+  let i;
+  let l;
+
+  // Force an array if not already something iterable
+  if (typeof obj !== 'object') {
+    /*eslint no-param-reassign:0*/
+    obj = [obj];
+  }
+
+  if (isArray(obj)) {
+    // Iterate over array values
+    for (i = 0, l = obj.length; i < l; i++) {
+      fn.call(null, obj[i], i, obj);
+    }
+  } else {
+    // Iterate over object keys
+    const keys = allOwnKeys ? Object.getOwnPropertyNames(obj) : Object.keys(obj);
+    const len = keys.length;
+    let key;
+
+    for (i = 0; i < len; i++) {
+      key = keys[i];
+      fn.call(null, obj[key], key, obj);
+    }
+  }
+}
+
+function findKey(obj, key) {
+  key = key.toLowerCase();
+  const keys = Object.keys(obj);
+  let i = keys.length;
+  let _key;
+  while (i-- > 0) {
+    _key = keys[i];
+    if (key === _key.toLowerCase()) {
+      return _key;
+    }
+  }
+  return null;
+}
+
+const _global = (() => {
+  /*eslint no-undef:0*/
+  if (typeof globalThis !== "undefined") return globalThis;
+  return typeof self !== "undefined" ? self : (typeof window !== 'undefined' ? window : global)
+})();
+
+const isContextDefined = (context) => !isUndefined(context) && context !== _global;
+
+/**
+ * Accepts varargs expecting each argument to be an object, then
+ * immutably merges the properties of each object and returns result.
+ *
+ * When multiple objects contain the same key the later object in
+ * the arguments list will take precedence.
+ *
+ * Example:
+ *
+ * ```js
+ * var result = merge({foo: 123}, {foo: 456});
+ * console.log(result.foo); // outputs 456
+ * ```
+ *
+ * @param {Object} obj1 Object to merge
+ *
+ * @returns {Object} Result of all merge properties
+ */
+function merge(/* obj1, obj2, obj3, ... */) {
+  const {caseless} = isContextDefined(this) && this || {};
+  const result = {};
+  const assignValue = (val, key) => {
+    const targetKey = caseless && findKey(result, key) || key;
+    if (isPlainObject(result[targetKey]) && isPlainObject(val)) {
+      result[targetKey] = merge(result[targetKey], val);
+    } else if (isPlainObject(val)) {
+      result[targetKey] = merge({}, val);
+    } else if (isArray(val)) {
+      result[targetKey] = val.slice();
+    } else {
+      result[targetKey] = val;
+    }
+  };
+
+  for (let i = 0, l = arguments.length; i < l; i++) {
+    arguments[i] && forEach(arguments[i], assignValue);
+  }
+  return result;
+}
+
+/**
+ * Extends object a by mutably adding to it the properties of object b.
+ *
+ * @param {Object} a The object to be extended
+ * @param {Object} b The object to copy properties from
+ * @param {Object} thisArg The object to bind function to
+ *
+ * @param {Boolean} [allOwnKeys]
+ * @returns {Object} The resulting value of object a
+ */
+const extend = (a, b, thisArg, {allOwnKeys}= {}) => {
+  forEach(b, (val, key) => {
+    if (thisArg && isFunction(val)) {
+      a[key] = bind(val, thisArg);
+    } else {
+      a[key] = val;
+    }
+  }, {allOwnKeys});
+  return a;
+};
+
+/**
+ * Remove byte order marker. This catches EF BB BF (the UTF-8 BOM)
+ *
+ * @param {string} content with BOM
+ *
+ * @returns {string} content value without BOM
+ */
+const stripBOM = (content) => {
+  if (content.charCodeAt(0) === 0xFEFF) {
+    content = content.slice(1);
+  }
+  return content;
+};
+
+/**
+ * Inherit the prototype methods from one constructor into another
+ * @param {function} constructor
+ * @param {function} superConstructor
+ * @param {object} [props]
+ * @param {object} [descriptors]
+ *
+ * @returns {void}
+ */
+const inherits = (constructor, superConstructor, props, descriptors) => {
+  constructor.prototype = Object.create(superConstructor.prototype, descriptors);
+  constructor.prototype.constructor = constructor;
+  Object.defineProperty(constructor, 'super', {
+    value: superConstructor.prototype
+  });
+  props && Object.assign(constructor.prototype, props);
+};
+
+/**
+ * Resolve object with deep prototype chain to a flat object
+ * @param {Object} sourceObj source object
+ * @param {Object} [destObj]
+ * @param {Function|Boolean} [filter]
+ * @param {Function} [propFilter]
+ *
+ * @returns {Object}
+ */
+const toFlatObject = (sourceObj, destObj, filter, propFilter) => {
+  let props;
+  let i;
+  let prop;
+  const merged = {};
+
+  destObj = destObj || {};
+  // eslint-disable-next-line no-eq-null,eqeqeq
+  if (sourceObj == null) return destObj;
+
+  do {
+    props = Object.getOwnPropertyNames(sourceObj);
+    i = props.length;
+    while (i-- > 0) {
+      prop = props[i];
+      if ((!propFilter || propFilter(prop, sourceObj, destObj)) && !merged[prop]) {
+        destObj[prop] = sourceObj[prop];
+        merged[prop] = true;
+      }
+    }
+    sourceObj = filter !== false && getPrototypeOf(sourceObj);
+  } while (sourceObj && (!filter || filter(sourceObj, destObj)) && sourceObj !== Object.prototype);
+
+  return destObj;
+};
+
+/**
+ * Determines whether a string ends with the characters of a specified string
+ *
+ * @param {String} str
+ * @param {String} searchString
+ * @param {Number} [position= 0]
+ *
+ * @returns {boolean}
+ */
+const endsWith = (str, searchString, position) => {
+  str = String(str);
+  if (position === undefined || position > str.length) {
+    position = str.length;
+  }
+  position -= searchString.length;
+  const lastIndex = str.indexOf(searchString, position);
+  return lastIndex !== -1 && lastIndex === position;
+};
+
+
+/**
+ * Returns new array from array like object or null if failed
+ *
+ * @param {*} [thing]
+ *
+ * @returns {?Array}
+ */
+const toArray = (thing) => {
+  if (!thing) return null;
+  if (isArray(thing)) return thing;
+  let i = thing.length;
+  if (!isNumber(i)) return null;
+  const arr = new Array(i);
+  while (i-- > 0) {
+    arr[i] = thing[i];
+  }
+  return arr;
+};
+
+/**
+ * Checking if the Uint8Array exists and if it does, it returns a function that checks if the
+ * thing passed in is an instance of Uint8Array
+ *
+ * @param {TypedArray}
+ *
+ * @returns {Array}
+ */
+// eslint-disable-next-line func-names
+const isTypedArray = (TypedArray => {
+  // eslint-disable-next-line func-names
+  return thing => {
+    return TypedArray && thing instanceof TypedArray;
+  };
+})(typeof Uint8Array !== 'undefined' && getPrototypeOf(Uint8Array));
+
+/**
+ * For each entry in the object, call the function with the key and value.
+ *
+ * @param {Object<any, any>} obj - The object to iterate over.
+ * @param {Function} fn - The function to call for each entry.
+ *
+ * @returns {void}
+ */
+const forEachEntry = (obj, fn) => {
+  const generator = obj && obj[Symbol.iterator];
+
+  const iterator = generator.call(obj);
+
+  let result;
+
+  while ((result = iterator.next()) && !result.done) {
+    const pair = result.value;
+    fn.call(obj, pair[0], pair[1]);
+  }
+};
+
+/**
+ * It takes a regular expression and a string, and returns an array of all the matches
+ *
+ * @param {string} regExp - The regular expression to match against.
+ * @param {string} str - The string to search.
+ *
+ * @returns {Array<boolean>}
+ */
+const matchAll = (regExp, str) => {
+  let matches;
+  const arr = [];
+
+  while ((matches = regExp.exec(str)) !== null) {
+    arr.push(matches);
+  }
+
+  return arr;
+};
+
+/* Checking if the kindOfTest function returns true when passed an HTMLFormElement. */
+const isHTMLForm = kindOfTest('HTMLFormElement');
+
+const toCamelCase = str => {
+  return str.toLowerCase().replace(/[-_\s]([a-z\d])(\w*)/g,
+    function replacer(m, p1, p2) {
+      return p1.toUpperCase() + p2;
+    }
+  );
+};
+
+/* Creating a function that will check if an object has a property. */
+const hasOwnProperty = (({hasOwnProperty}) => (obj, prop) => hasOwnProperty.call(obj, prop))(Object.prototype);
+
+/**
+ * Determine if a value is a RegExp object
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a RegExp object, otherwise false
+ */
+const isRegExp = kindOfTest('RegExp');
+
+const reduceDescriptors = (obj, reducer) => {
+  const descriptors = Object.getOwnPropertyDescriptors(obj);
+  const reducedDescriptors = {};
+
+  forEach(descriptors, (descriptor, name) => {
+    let ret;
+    if ((ret = reducer(descriptor, name, obj)) !== false) {
+      reducedDescriptors[name] = ret || descriptor;
+    }
+  });
+
+  Object.defineProperties(obj, reducedDescriptors);
+};
+
+/**
+ * Makes all methods read-only
+ * @param {Object} obj
+ */
+
+const freezeMethods = (obj) => {
+  reduceDescriptors(obj, (descriptor, name) => {
+    // skip restricted props in strict mode
+    if (isFunction(obj) && ['arguments', 'caller', 'callee'].indexOf(name) !== -1) {
+      return false;
+    }
+
+    const value = obj[name];
+
+    if (!isFunction(value)) return;
+
+    descriptor.enumerable = false;
+
+    if ('writable' in descriptor) {
+      descriptor.writable = false;
+      return;
+    }
+
+    if (!descriptor.set) {
+      descriptor.set = () => {
+        throw Error('Can not rewrite read-only method \'' + name + '\'');
+      };
+    }
+  });
+};
+
+const toObjectSet = (arrayOrString, delimiter) => {
+  const obj = {};
+
+  const define = (arr) => {
+    arr.forEach(value => {
+      obj[value] = true;
+    });
+  };
+
+  isArray(arrayOrString) ? define(arrayOrString) : define(String(arrayOrString).split(delimiter));
+
+  return obj;
+};
+
+const noop = () => {};
+
+const toFiniteNumber = (value, defaultValue) => {
+  return value != null && Number.isFinite(value = +value) ? value : defaultValue;
+};
+
+const ALPHA = 'abcdefghijklmnopqrstuvwxyz';
+
+const DIGIT = '0123456789';
+
+const ALPHABET = {
+  DIGIT,
+  ALPHA,
+  ALPHA_DIGIT: ALPHA + ALPHA.toUpperCase() + DIGIT
+};
+
+const generateString = (size = 16, alphabet = ALPHABET.ALPHA_DIGIT) => {
+  let str = '';
+  const {length} = alphabet;
+  while (size--) {
+    str += alphabet[Math.random() * length|0];
+  }
+
+  return str;
+};
+
+/**
+ * If the thing is a FormData object, return true, otherwise return false.
+ *
+ * @param {unknown} thing - The thing to check.
+ *
+ * @returns {boolean}
+ */
+function isSpecCompliantForm(thing) {
+  return !!(thing && isFunction(thing.append) && thing[Symbol.toStringTag] === 'FormData' && thing[Symbol.iterator]);
+}
+
+const toJSONObject = (obj) => {
+  const stack = new Array(10);
+
+  const visit = (source, i) => {
+
+    if (isObject(source)) {
+      if (stack.indexOf(source) >= 0) {
+        return;
+      }
+
+      if(!('toJSON' in source)) {
+        stack[i] = source;
+        const target = isArray(source) ? [] : {};
+
+        forEach(source, (value, key) => {
+          const reducedValue = visit(value, i + 1);
+          !isUndefined(reducedValue) && (target[key] = reducedValue);
+        });
+
+        stack[i] = undefined;
+
+        return target;
+      }
+    }
+
+    return source;
+  };
+
+  return visit(obj, 0);
+};
+
+const isAsyncFn = kindOfTest('AsyncFunction');
+
+const isThenable = (thing) =>
+  thing && (isObject(thing) || isFunction(thing)) && isFunction(thing.then) && isFunction(thing.catch);
+
+// original code
+// https://github.com/DigitalBrainJS/AxiosPromise/blob/16deab13710ec09779922131f3fa5954320f83ab/lib/utils.js#L11-L34
+
+const _setImmediate = ((setImmediateSupported, postMessageSupported) => {
+  if (setImmediateSupported) {
+    return setImmediate;
+  }
+
+  return postMessageSupported ? ((token, callbacks) => {
+    _global.addEventListener("message", ({source, data}) => {
+      if (source === _global && data === token) {
+        callbacks.length && callbacks.shift()();
+      }
+    }, false);
+
+    return (cb) => {
+      callbacks.push(cb);
+      _global.postMessage(token, "*");
+    }
+  })(`axios@${Math.random()}`, []) : (cb) => setTimeout(cb);
+})(
+  typeof setImmediate === 'function',
+  isFunction(_global.postMessage)
+);
+
+const asap = typeof queueMicrotask !== 'undefined' ?
+  queueMicrotask.bind(_global) : ( typeof process !== 'undefined' && process.nextTick || _setImmediate);
+
+// *********************
+
+const utils$1 = {
+  isArray,
+  isArrayBuffer,
+  isBuffer,
+  isFormData,
+  isArrayBufferView,
+  isString,
+  isNumber,
+  isBoolean,
+  isObject,
+  isPlainObject,
+  isReadableStream,
+  isRequest,
+  isResponse,
+  isHeaders,
+  isUndefined,
+  isDate,
+  isFile,
+  isBlob,
+  isRegExp,
+  isFunction,
+  isStream,
+  isURLSearchParams,
+  isTypedArray,
+  isFileList,
+  forEach,
+  merge,
+  extend,
+  trim,
+  stripBOM,
+  inherits,
+  toFlatObject,
+  kindOf,
+  kindOfTest,
+  endsWith,
+  toArray,
+  forEachEntry,
+  matchAll,
+  isHTMLForm,
+  hasOwnProperty,
+  hasOwnProp: hasOwnProperty, // an alias to avoid ESLint no-prototype-builtins detection
+  reduceDescriptors,
+  freezeMethods,
+  toObjectSet,
+  toCamelCase,
+  noop,
+  toFiniteNumber,
+  findKey,
+  global: _global,
+  isContextDefined,
+  ALPHABET,
+  generateString,
+  isSpecCompliantForm,
+  toJSONObject,
+  isAsyncFn,
+  isThenable,
+  setImmediate: _setImmediate,
+  asap
+};
+
+/**
+ * Create an Error with the specified message, config, error code, request and response.
+ *
+ * @param {string} message The error message.
+ * @param {string} [code] The error code (for example, 'ECONNABORTED').
+ * @param {Object} [config] The config.
+ * @param {Object} [request] The request.
+ * @param {Object} [response] The response.
+ *
+ * @returns {Error} The created error.
+ */
+function AxiosError(message, code, config, request, response) {
+  Error.call(this);
+
+  if (Error.captureStackTrace) {
+    Error.captureStackTrace(this, this.constructor);
+  } else {
+    this.stack = (new Error()).stack;
+  }
+
+  this.message = message;
+  this.name = 'AxiosError';
+  code && (this.code = code);
+  config && (this.config = config);
+  request && (this.request = request);
+  if (response) {
+    this.response = response;
+    this.status = response.status ? response.status : null;
+  }
+}
+
+utils$1.inherits(AxiosError, Error, {
+  toJSON: function toJSON() {
+    return {
+      // Standard
+      message: this.message,
+      name: this.name,
+      // Microsoft
+      description: this.description,
+      number: this.number,
+      // Mozilla
+      fileName: this.fileName,
+      lineNumber: this.lineNumber,
+      columnNumber: this.columnNumber,
+      stack: this.stack,
+      // Axios
+      config: utils$1.toJSONObject(this.config),
+      code: this.code,
+      status: this.status
+    };
+  }
+});
+
+const prototype$1 = AxiosError.prototype;
+const descriptors = {};
+
+[
+  'ERR_BAD_OPTION_VALUE',
+  'ERR_BAD_OPTION',
+  'ECONNABORTED',
+  'ETIMEDOUT',
+  'ERR_NETWORK',
+  'ERR_FR_TOO_MANY_REDIRECTS',
+  'ERR_DEPRECATED',
+  'ERR_BAD_RESPONSE',
+  'ERR_BAD_REQUEST',
+  'ERR_CANCELED',
+  'ERR_NOT_SUPPORT',
+  'ERR_INVALID_URL'
+// eslint-disable-next-line func-names
+].forEach(code => {
+  descriptors[code] = {value: code};
+});
+
+Object.defineProperties(AxiosError, descriptors);
+Object.defineProperty(prototype$1, 'isAxiosError', {value: true});
+
+// eslint-disable-next-line func-names
+AxiosError.from = (error, code, config, request, response, customProps) => {
+  const axiosError = Object.create(prototype$1);
+
+  utils$1.toFlatObject(error, axiosError, function filter(obj) {
+    return obj !== Error.prototype;
+  }, prop => {
+    return prop !== 'isAxiosError';
+  });
+
+  AxiosError.call(axiosError, error.message, code, config, request, response);
+
+  axiosError.cause = error;
+
+  axiosError.name = error.name;
+
+  customProps && Object.assign(axiosError, customProps);
+
+  return axiosError;
+};
+
+/**
+ * Determines if the given thing is a array or js object.
+ *
+ * @param {string} thing - The object or array to be visited.
+ *
+ * @returns {boolean}
+ */
+function isVisitable(thing) {
+  return utils$1.isPlainObject(thing) || utils$1.isArray(thing);
+}
+
+/**
+ * It removes the brackets from the end of a string
+ *
+ * @param {string} key - The key of the parameter.
+ *
+ * @returns {string} the key without the brackets.
+ */
+function removeBrackets(key) {
+  return utils$1.endsWith(key, '[]') ? key.slice(0, -2) : key;
+}
+
+/**
+ * It takes a path, a key, and a boolean, and returns a string
+ *
+ * @param {string} path - The path to the current key.
+ * @param {string} key - The key of the current object being iterated over.
+ * @param {string} dots - If true, the key will be rendered with dots instead of brackets.
+ *
+ * @returns {string} The path to the current key.
+ */
+function renderKey(path, key, dots) {
+  if (!path) return key;
+  return path.concat(key).map(function each(token, i) {
+    // eslint-disable-next-line no-param-reassign
+    token = removeBrackets(token);
+    return !dots && i ? '[' + token + ']' : token;
+  }).join(dots ? '.' : '');
+}
+
+/**
+ * If the array is an array and none of its elements are visitable, then it's a flat array.
+ *
+ * @param {Array<any>} arr - The array to check
+ *
+ * @returns {boolean}
+ */
+function isFlatArray(arr) {
+  return utils$1.isArray(arr) && !arr.some(isVisitable);
+}
+
+const predicates = utils$1.toFlatObject(utils$1, {}, null, function filter(prop) {
+  return /^is[A-Z]/.test(prop);
+});
+
+/**
+ * Convert a data object to FormData
+ *
+ * @param {Object} obj
+ * @param {?Object} [formData]
+ * @param {?Object} [options]
+ * @param {Function} [options.visitor]
+ * @param {Boolean} [options.metaTokens = true]
+ * @param {Boolean} [options.dots = false]
+ * @param {?Boolean} [options.indexes = false]
+ *
+ * @returns {Object}
+ **/
+
+/**
+ * It converts an object into a FormData object
+ *
+ * @param {Object<any, any>} obj - The object to convert to form data.
+ * @param {string} formData - The FormData object to append to.
+ * @param {Object<string, any>} options
+ *
+ * @returns
+ */
+function toFormData(obj, formData, options) {
+  if (!utils$1.isObject(obj)) {
+    throw new TypeError('target must be an object');
+  }
+
+  // eslint-disable-next-line no-param-reassign
+  formData = formData || new (FormData__default["default"] || FormData)();
+
+  // eslint-disable-next-line no-param-reassign
+  options = utils$1.toFlatObject(options, {
+    metaTokens: true,
+    dots: false,
+    indexes: false
+  }, false, function defined(option, source) {
+    // eslint-disable-next-line no-eq-null,eqeqeq
+    return !utils$1.isUndefined(source[option]);
+  });
+
+  const metaTokens = options.metaTokens;
+  // eslint-disable-next-line no-use-before-define
+  const visitor = options.visitor || defaultVisitor;
+  const dots = options.dots;
+  const indexes = options.indexes;
+  const _Blob = options.Blob || typeof Blob !== 'undefined' && Blob;
+  const useBlob = _Blob && utils$1.isSpecCompliantForm(formData);
+
+  if (!utils$1.isFunction(visitor)) {
+    throw new TypeError('visitor must be a function');
+  }
+
+  function convertValue(value) {
+    if (value === null) return '';
+
+    if (utils$1.isDate(value)) {
+      return value.toISOString();
+    }
+
+    if (!useBlob && utils$1.isBlob(value)) {
+      throw new AxiosError('Blob is not supported. Use a Buffer instead.');
+    }
+
+    if (utils$1.isArrayBuffer(value) || utils$1.isTypedArray(value)) {
+      return useBlob && typeof Blob === 'function' ? new Blob([value]) : Buffer.from(value);
+    }
+
+    return value;
+  }
+
+  /**
+   * Default visitor.
+   *
+   * @param {*} value
+   * @param {String|Number} key
+   * @param {Array<String|Number>} path
+   * @this {FormData}
+   *
+   * @returns {boolean} return true to visit the each prop of the value recursively
+   */
+  function defaultVisitor(value, key, path) {
+    let arr = value;
+
+    if (value && !path && typeof value === 'object') {
+      if (utils$1.endsWith(key, '{}')) {
+        // eslint-disable-next-line no-param-reassign
+        key = metaTokens ? key : key.slice(0, -2);
+        // eslint-disable-next-line no-param-reassign
+        value = JSON.stringify(value);
+      } else if (
+        (utils$1.isArray(value) && isFlatArray(value)) ||
+        ((utils$1.isFileList(value) || utils$1.endsWith(key, '[]')) && (arr = utils$1.toArray(value))
+        )) {
+        // eslint-disable-next-line no-param-reassign
+        key = removeBrackets(key);
+
+        arr.forEach(function each(el, index) {
+          !(utils$1.isUndefined(el) || el === null) && formData.append(
+            // eslint-disable-next-line no-nested-ternary
+            indexes === true ? renderKey([key], index, dots) : (indexes === null ? key : key + '[]'),
+            convertValue(el)
+          );
+        });
+        return false;
+      }
+    }
+
+    if (isVisitable(value)) {
+      return true;
+    }
+
+    formData.append(renderKey(path, key, dots), convertValue(value));
+
+    return false;
+  }
+
+  const stack = [];
+
+  const exposedHelpers = Object.assign(predicates, {
+    defaultVisitor,
+    convertValue,
+    isVisitable
+  });
+
+  function build(value, path) {
+    if (utils$1.isUndefined(value)) return;
+
+    if (stack.indexOf(value) !== -1) {
+      throw Error('Circular reference detected in ' + path.join('.'));
+    }
+
+    stack.push(value);
+
+    utils$1.forEach(value, function each(el, key) {
+      const result = !(utils$1.isUndefined(el) || el === null) && visitor.call(
+        formData, el, utils$1.isString(key) ? key.trim() : key, path, exposedHelpers
+      );
+
+      if (result === true) {
+        build(el, path ? path.concat(key) : [key]);
+      }
+    });
+
+    stack.pop();
+  }
+
+  if (!utils$1.isObject(obj)) {
+    throw new TypeError('data must be an object');
+  }
+
+  build(obj);
+
+  return formData;
+}
+
+/**
+ * It encodes a string by replacing all characters that are not in the unreserved set with
+ * their percent-encoded equivalents
+ *
+ * @param {string} str - The string to encode.
+ *
+ * @returns {string} The encoded string.
+ */
+function encode$1(str) {
+  const charMap = {
+    '!': '%21',
+    "'": '%27',
+    '(': '%28',
+    ')': '%29',
+    '~': '%7E',
+    '%20': '+',
+    '%00': '\x00'
+  };
+  return encodeURIComponent(str).replace(/[!'()~]|%20|%00/g, function replacer(match) {
+    return charMap[match];
+  });
+}
+
+/**
+ * It takes a params object and converts it to a FormData object
+ *
+ * @param {Object<string, any>} params - The parameters to be converted to a FormData object.
+ * @param {Object<string, any>} options - The options object passed to the Axios constructor.
+ *
+ * @returns {void}
+ */
+function AxiosURLSearchParams(params, options) {
+  this._pairs = [];
+
+  params && toFormData(params, this, options);
+}
+
+const prototype = AxiosURLSearchParams.prototype;
+
+prototype.append = function append(name, value) {
+  this._pairs.push([name, value]);
+};
+
+prototype.toString = function toString(encoder) {
+  const _encode = encoder ? function(value) {
+    return encoder.call(this, value, encode$1);
+  } : encode$1;
+
+  return this._pairs.map(function each(pair) {
+    return _encode(pair[0]) + '=' + _encode(pair[1]);
+  }, '').join('&');
+};
+
+/**
+ * It replaces all instances of the characters `:`, `$`, `,`, `+`, `[`, and `]` with their
+ * URI encoded counterparts
+ *
+ * @param {string} val The value to be encoded.
+ *
+ * @returns {string} The encoded value.
+ */
+function encode(val) {
+  return encodeURIComponent(val).
+    replace(/%3A/gi, ':').
+    replace(/%24/g, '$').
+    replace(/%2C/gi, ',').
+    replace(/%20/g, '+').
+    replace(/%5B/gi, '[').
+    replace(/%5D/gi, ']');
+}
+
+/**
+ * Build a URL by appending params to the end
+ *
+ * @param {string} url The base of the url (e.g., http://www.google.com)
+ * @param {object} [params] The params to be appended
+ * @param {?(object|Function)} options
+ *
+ * @returns {string} The formatted url
+ */
+function buildURL(url, params, options) {
+  /*eslint no-param-reassign:0*/
+  if (!params) {
+    return url;
+  }
+  
+  const _encode = options && options.encode || encode;
+
+  if (utils$1.isFunction(options)) {
+    options = {
+      serialize: options
+    };
+  } 
+
+  const serializeFn = options && options.serialize;
+
+  let serializedParams;
+
+  if (serializeFn) {
+    serializedParams = serializeFn(params, options);
+  } else {
+    serializedParams = utils$1.isURLSearchParams(params) ?
+      params.toString() :
+      new AxiosURLSearchParams(params, options).toString(_encode);
+  }
+
+  if (serializedParams) {
+    const hashmarkIndex = url.indexOf("#");
+
+    if (hashmarkIndex !== -1) {
+      url = url.slice(0, hashmarkIndex);
+    }
+    url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;
+  }
+
+  return url;
+}
+
+class InterceptorManager {
+  constructor() {
+    this.handlers = [];
+  }
+
+  /**
+   * Add a new interceptor to the stack
+   *
+   * @param {Function} fulfilled The function to handle `then` for a `Promise`
+   * @param {Function} rejected The function to handle `reject` for a `Promise`
+   *
+   * @return {Number} An ID used to remove interceptor later
+   */
+  use(fulfilled, rejected, options) {
+    this.handlers.push({
+      fulfilled,
+      rejected,
+      synchronous: options ? options.synchronous : false,
+      runWhen: options ? options.runWhen : null
+    });
+    return this.handlers.length - 1;
+  }
+
+  /**
+   * Remove an interceptor from the stack
+   *
+   * @param {Number} id The ID that was returned by `use`
+   *
+   * @returns {Boolean} `true` if the interceptor was removed, `false` otherwise
+   */
+  eject(id) {
+    if (this.handlers[id]) {
+      this.handlers[id] = null;
+    }
+  }
+
+  /**
+   * Clear all interceptors from the stack
+   *
+   * @returns {void}
+   */
+  clear() {
+    if (this.handlers) {
+      this.handlers = [];
+    }
+  }
+
+  /**
+   * Iterate over all the registered interceptors
+   *
+   * This method is particularly useful for skipping over any
+   * interceptors that may have become `null` calling `eject`.
+   *
+   * @param {Function} fn The function to call for each interceptor
+   *
+   * @returns {void}
+   */
+  forEach(fn) {
+    utils$1.forEach(this.handlers, function forEachHandler(h) {
+      if (h !== null) {
+        fn(h);
+      }
+    });
+  }
+}
+
+const InterceptorManager$1 = InterceptorManager;
+
+const transitionalDefaults = {
+  silentJSONParsing: true,
+  forcedJSONParsing: true,
+  clarifyTimeoutError: false
+};
+
+const URLSearchParams = url__default["default"].URLSearchParams;
+
+const platform$1 = {
+  isNode: true,
+  classes: {
+    URLSearchParams,
+    FormData: FormData__default["default"],
+    Blob: typeof Blob !== 'undefined' && Blob || null
+  },
+  protocols: [ 'http', 'https', 'file', 'data' ]
+};
+
+const hasBrowserEnv = typeof window !== 'undefined' && typeof document !== 'undefined';
+
+const _navigator = typeof navigator === 'object' && navigator || undefined;
+
+/**
+ * Determine if we're running in a standard browser environment
+ *
+ * This allows axios to run in a web worker, and react-native.
+ * Both environments support XMLHttpRequest, but not fully standard globals.
+ *
+ * web workers:
+ *  typeof window -> undefined
+ *  typeof document -> undefined
+ *
+ * react-native:
+ *  navigator.product -> 'ReactNative'
+ * nativescript
+ *  navigator.product -> 'NativeScript' or 'NS'
+ *
+ * @returns {boolean}
+ */
+const hasStandardBrowserEnv = hasBrowserEnv &&
+  (!_navigator || ['ReactNative', 'NativeScript', 'NS'].indexOf(_navigator.product) < 0);
+
+/**
+ * Determine if we're running in a standard browser webWorker environment
+ *
+ * Although the `isStandardBrowserEnv` method indicates that
+ * `allows axios to run in a web worker`, the WebWorker will still be
+ * filtered out due to its judgment standard
+ * `typeof window !== 'undefined' && typeof document !== 'undefined'`.
+ * This leads to a problem when axios post `FormData` in webWorker
+ */
+const hasStandardBrowserWebWorkerEnv = (() => {
+  return (
+    typeof WorkerGlobalScope !== 'undefined' &&
+    // eslint-disable-next-line no-undef
+    self instanceof WorkerGlobalScope &&
+    typeof self.importScripts === 'function'
+  );
+})();
+
+const origin = hasBrowserEnv && window.location.href || 'http://localhost';
+
+const utils = /*#__PURE__*/Object.freeze({
+  __proto__: null,
+  hasBrowserEnv: hasBrowserEnv,
+  hasStandardBrowserWebWorkerEnv: hasStandardBrowserWebWorkerEnv,
+  hasStandardBrowserEnv: hasStandardBrowserEnv,
+  navigator: _navigator,
+  origin: origin
+});
+
+const platform = {
+  ...utils,
+  ...platform$1
+};
+
+function toURLEncodedForm(data, options) {
+  return toFormData(data, new platform.classes.URLSearchParams(), Object.assign({
+    visitor: function(value, key, path, helpers) {
+      if (platform.isNode && utils$1.isBuffer(value)) {
+        this.append(key, value.toString('base64'));
+        return false;
+      }
+
+      return helpers.defaultVisitor.apply(this, arguments);
+    }
+  }, options));
+}
+
+/**
+ * It takes a string like `foo[x][y][z]` and returns an array like `['foo', 'x', 'y', 'z']
+ *
+ * @param {string} name - The name of the property to get.
+ *
+ * @returns An array of strings.
+ */
+function parsePropPath(name) {
+  // foo[x][y][z]
+  // foo.x.y.z
+  // foo-x-y-z
+  // foo x y z
+  return utils$1.matchAll(/\w+|\[(\w*)]/g, name).map(match => {
+    return match[0] === '[]' ? '' : match[1] || match[0];
+  });
+}
+
+/**
+ * Convert an array to an object.
+ *
+ * @param {Array<any>} arr - The array to convert to an object.
+ *
+ * @returns An object with the same keys and values as the array.
+ */
+function arrayToObject(arr) {
+  const obj = {};
+  const keys = Object.keys(arr);
+  let i;
+  const len = keys.length;
+  let key;
+  for (i = 0; i < len; i++) {
+    key = keys[i];
+    obj[key] = arr[key];
+  }
+  return obj;
+}
+
+/**
+ * It takes a FormData object and returns a JavaScript object
+ *
+ * @param {string} formData The FormData object to convert to JSON.
+ *
+ * @returns {Object<string, any> | null} The converted object.
+ */
+function formDataToJSON(formData) {
+  function buildPath(path, value, target, index) {
+    let name = path[index++];
+
+    if (name === '__proto__') return true;
+
+    const isNumericKey = Number.isFinite(+name);
+    const isLast = index >= path.length;
+    name = !name && utils$1.isArray(target) ? target.length : name;
+
+    if (isLast) {
+      if (utils$1.hasOwnProp(target, name)) {
+        target[name] = [target[name], value];
+      } else {
+        target[name] = value;
+      }
+
+      return !isNumericKey;
+    }
+
+    if (!target[name] || !utils$1.isObject(target[name])) {
+      target[name] = [];
+    }
+
+    const result = buildPath(path, value, target[name], index);
+
+    if (result && utils$1.isArray(target[name])) {
+      target[name] = arrayToObject(target[name]);
+    }
+
+    return !isNumericKey;
+  }
+
+  if (utils$1.isFormData(formData) && utils$1.isFunction(formData.entries)) {
+    const obj = {};
+
+    utils$1.forEachEntry(formData, (name, value) => {
+      buildPath(parsePropPath(name), value, obj, 0);
+    });
+
+    return obj;
+  }
+
+  return null;
+}
+
+/**
+ * It takes a string, tries to parse it, and if it fails, it returns the stringified version
+ * of the input
+ *
+ * @param {any} rawValue - The value to be stringified.
+ * @param {Function} parser - A function that parses a string into a JavaScript object.
+ * @param {Function} encoder - A function that takes a value and returns a string.
+ *
+ * @returns {string} A stringified version of the rawValue.
+ */
+function stringifySafely(rawValue, parser, encoder) {
+  if (utils$1.isString(rawValue)) {
+    try {
+      (parser || JSON.parse)(rawValue);
+      return utils$1.trim(rawValue);
+    } catch (e) {
+      if (e.name !== 'SyntaxError') {
+        throw e;
+      }
+    }
+  }
+
+  return (encoder || JSON.stringify)(rawValue);
+}
+
+const defaults = {
+
+  transitional: transitionalDefaults,
+
+  adapter: ['xhr', 'http', 'fetch'],
+
+  transformRequest: [function transformRequest(data, headers) {
+    const contentType = headers.getContentType() || '';
+    const hasJSONContentType = contentType.indexOf('application/json') > -1;
+    const isObjectPayload = utils$1.isObject(data);
+
+    if (isObjectPayload && utils$1.isHTMLForm(data)) {
+      data = new FormData(data);
+    }
+
+    const isFormData = utils$1.isFormData(data);
+
+    if (isFormData) {
+      return hasJSONContentType ? JSON.stringify(formDataToJSON(data)) : data;
+    }
+
+    if (utils$1.isArrayBuffer(data) ||
+      utils$1.isBuffer(data) ||
+      utils$1.isStream(data) ||
+      utils$1.isFile(data) ||
+      utils$1.isBlob(data) ||
+      utils$1.isReadableStream(data)
+    ) {
+      return data;
+    }
+    if (utils$1.isArrayBufferView(data)) {
+      return data.buffer;
+    }
+    if (utils$1.isURLSearchParams(data)) {
+      headers.setContentType('application/x-www-form-urlencoded;charset=utf-8', false);
+      return data.toString();
+    }
+
+    let isFileList;
+
+    if (isObjectPayload) {
+      if (contentType.indexOf('application/x-www-form-urlencoded') > -1) {
+        return toURLEncodedForm(data, this.formSerializer).toString();
+      }
+
+      if ((isFileList = utils$1.isFileList(data)) || contentType.indexOf('multipart/form-data') > -1) {
+        const _FormData = this.env && this.env.FormData;
+
+        return toFormData(
+          isFileList ? {'files[]': data} : data,
+          _FormData && new _FormData(),
+          this.formSerializer
+        );
+      }
+    }
+
+    if (isObjectPayload || hasJSONContentType ) {
+      headers.setContentType('application/json', false);
+      return stringifySafely(data);
+    }
+
+    return data;
+  }],
+
+  transformResponse: [function transformResponse(data) {
+    const transitional = this.transitional || defaults.transitional;
+    const forcedJSONParsing = transitional && transitional.forcedJSONParsing;
+    const JSONRequested = this.responseType === 'json';
+
+    if (utils$1.isResponse(data) || utils$1.isReadableStream(data)) {
+      return data;
+    }
+
+    if (data && utils$1.isString(data) && ((forcedJSONParsing && !this.responseType) || JSONRequested)) {
+      const silentJSONParsing = transitional && transitional.silentJSONParsing;
+      const strictJSONParsing = !silentJSONParsing && JSONRequested;
+
+      try {
+        return JSON.parse(data);
+      } catch (e) {
+        if (strictJSONParsing) {
+          if (e.name === 'SyntaxError') {
+            throw AxiosError.from(e, AxiosError.ERR_BAD_RESPONSE, this, null, this.response);
+          }
+          throw e;
+        }
+      }
+    }
+
+    return data;
+  }],
+
+  /**
+   * A timeout in milliseconds to abort a request. If set to 0 (default) a
+   * timeout is not created.
+   */
+  timeout: 0,
+
+  xsrfCookieName: 'XSRF-TOKEN',
+  xsrfHeaderName: 'X-XSRF-TOKEN',
+
+  maxContentLength: -1,
+  maxBodyLength: -1,
+
+  env: {
+    FormData: platform.classes.FormData,
+    Blob: platform.classes.Blob
+  },
+
+  validateStatus: function validateStatus(status) {
+    return status >= 200 && status < 300;
+  },
+
+  headers: {
+    common: {
+      'Accept': 'application/json, text/plain, */*',
+      'Content-Type': undefined
+    }
+  }
+};
+
+utils$1.forEach(['delete', 'get', 'head', 'post', 'put', 'patch'], (method) => {
+  defaults.headers[method] = {};
+});
+
+const defaults$1 = defaults;
+
+// RawAxiosHeaders whose duplicates are ignored by node
+// c.f. https://nodejs.org/api/http.html#http_message_headers
+const ignoreDuplicateOf = utils$1.toObjectSet([
+  'age', 'authorization', 'content-length', 'content-type', 'etag',
+  'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since',
+  'last-modified', 'location', 'max-forwards', 'proxy-authorization',
+  'referer', 'retry-after', 'user-agent'
+]);
+
+/**
+ * Parse headers into an object
+ *
+ * ```
+ * Date: Wed, 27 Aug 2014 08:58:49 GMT
+ * Content-Type: application/json
+ * Connection: keep-alive
+ * Transfer-Encoding: chunked
+ * ```
+ *
+ * @param {String} rawHeaders Headers needing to be parsed
+ *
+ * @returns {Object} Headers parsed into an object
+ */
+const parseHeaders = rawHeaders => {
+  const parsed = {};
+  let key;
+  let val;
+  let i;
+
+  rawHeaders && rawHeaders.split('\n').forEach(function parser(line) {
+    i = line.indexOf(':');
+    key = line.substring(0, i).trim().toLowerCase();
+    val = line.substring(i + 1).trim();
+
+    if (!key || (parsed[key] && ignoreDuplicateOf[key])) {
+      return;
+    }
+
+    if (key === 'set-cookie') {
+      if (parsed[key]) {
+        parsed[key].push(val);
+      } else {
+        parsed[key] = [val];
+      }
+    } else {
+      parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;
+    }
+  });
+
+  return parsed;
+};
+
+const $internals = Symbol('internals');
+
+function normalizeHeader(header) {
+  return header && String(header).trim().toLowerCase();
+}
+
+function normalizeValue(value) {
+  if (value === false || value == null) {
+    return value;
+  }
+
+  return utils$1.isArray(value) ? value.map(normalizeValue) : String(value);
+}
+
+function parseTokens(str) {
+  const tokens = Object.create(null);
+  const tokensRE = /([^\s,;=]+)\s*(?:=\s*([^,;]+))?/g;
+  let match;
+
+  while ((match = tokensRE.exec(str))) {
+    tokens[match[1]] = match[2];
+  }
+
+  return tokens;
+}
+
+const isValidHeaderName = (str) => /^[-_a-zA-Z0-9^`|~,!#$%&'*+.]+$/.test(str.trim());
+
+function matchHeaderValue(context, value, header, filter, isHeaderNameFilter) {
+  if (utils$1.isFunction(filter)) {
+    return filter.call(this, value, header);
+  }
+
+  if (isHeaderNameFilter) {
+    value = header;
+  }
+
+  if (!utils$1.isString(value)) return;
+
+  if (utils$1.isString(filter)) {
+    return value.indexOf(filter) !== -1;
+  }
+
+  if (utils$1.isRegExp(filter)) {
+    return filter.test(value);
+  }
+}
+
+function formatHeader(header) {
+  return header.trim()
+    .toLowerCase().replace(/([a-z\d])(\w*)/g, (w, char, str) => {
+      return char.toUpperCase() + str;
+    });
+}
+
+function buildAccessors(obj, header) {
+  const accessorName = utils$1.toCamelCase(' ' + header);
+
+  ['get', 'set', 'has'].forEach(methodName => {
+    Object.defineProperty(obj, methodName + accessorName, {
+      value: function(arg1, arg2, arg3) {
+        return this[methodName].call(this, header, arg1, arg2, arg3);
+      },
+      configurable: true
+    });
+  });
+}
+
+class AxiosHeaders {
+  constructor(headers) {
+    headers && this.set(headers);
+  }
+
+  set(header, valueOrRewrite, rewrite) {
+    const self = this;
+
+    function setHeader(_value, _header, _rewrite) {
+      const lHeader = normalizeHeader(_header);
+
+      if (!lHeader) {
+        throw new Error('header name must be a non-empty string');
+      }
+
+      const key = utils$1.findKey(self, lHeader);
+
+      if(!key || self[key] === undefined || _rewrite === true || (_rewrite === undefined && self[key] !== false)) {
+        self[key || _header] = normalizeValue(_value);
+      }
+    }
+
+    const setHeaders = (headers, _rewrite) =>
+      utils$1.forEach(headers, (_value, _header) => setHeader(_value, _header, _rewrite));
+
+    if (utils$1.isPlainObject(header) || header instanceof this.constructor) {
+      setHeaders(header, valueOrRewrite);
+    } else if(utils$1.isString(header) && (header = header.trim()) && !isValidHeaderName(header)) {
+      setHeaders(parseHeaders(header), valueOrRewrite);
+    } else if (utils$1.isHeaders(header)) {
+      for (const [key, value] of header.entries()) {
+        setHeader(value, key, rewrite);
+      }
+    } else {
+      header != null && setHeader(valueOrRewrite, header, rewrite);
+    }
+
+    return this;
+  }
+
+  get(header, parser) {
+    header = normalizeHeader(header);
+
+    if (header) {
+      const key = utils$1.findKey(this, header);
+
+      if (key) {
+        const value = this[key];
+
+        if (!parser) {
+          return value;
+        }
+
+        if (parser === true) {
+          return parseTokens(value);
+        }
+
+        if (utils$1.isFunction(parser)) {
+          return parser.call(this, value, key);
+        }
+
+        if (utils$1.isRegExp(parser)) {
+          return parser.exec(value);
+        }
+
+        throw new TypeError('parser must be boolean|regexp|function');
+      }
+    }
+  }
+
+  has(header, matcher) {
+    header = normalizeHeader(header);
+
+    if (header) {
+      const key = utils$1.findKey(this, header);
+
+      return !!(key && this[key] !== undefined && (!matcher || matchHeaderValue(this, this[key], key, matcher)));
+    }
+
+    return false;
+  }
+
+  delete(header, matcher) {
+    const self = this;
+    let deleted = false;
+
+    function deleteHeader(_header) {
+      _header = normalizeHeader(_header);
+
+      if (_header) {
+        const key = utils$1.findKey(self, _header);
+
+        if (key && (!matcher || matchHeaderValue(self, self[key], key, matcher))) {
+          delete self[key];
+
+          deleted = true;
+        }
+      }
+    }
+
+    if (utils$1.isArray(header)) {
+      header.forEach(deleteHeader);
+    } else {
+      deleteHeader(header);
+    }
+
+    return deleted;
+  }
+
+  clear(matcher) {
+    const keys = Object.keys(this);
+    let i = keys.length;
+    let deleted = false;
+
+    while (i--) {
+      const key = keys[i];
+      if(!matcher || matchHeaderValue(this, this[key], key, matcher, true)) {
+        delete this[key];
+        deleted = true;
+      }
+    }
+
+    return deleted;
+  }
+
+  normalize(format) {
+    const self = this;
+    const headers = {};
+
+    utils$1.forEach(this, (value, header) => {
+      const key = utils$1.findKey(headers, header);
+
+      if (key) {
+        self[key] = normalizeValue(value);
+        delete self[header];
+        return;
+      }
+
+      const normalized = format ? formatHeader(header) : String(header).trim();
+
+      if (normalized !== header) {
+        delete self[header];
+      }
+
+      self[normalized] = normalizeValue(value);
+
+      headers[normalized] = true;
+    });
+
+    return this;
+  }
+
+  concat(...targets) {
+    return this.constructor.concat(this, ...targets);
+  }
+
+  toJSON(asStrings) {
+    const obj = Object.create(null);
+
+    utils$1.forEach(this, (value, header) => {
+      value != null && value !== false && (obj[header] = asStrings && utils$1.isArray(value) ? value.join(', ') : value);
+    });
+
+    return obj;
+  }
+
+  [Symbol.iterator]() {
+    return Object.entries(this.toJSON())[Symbol.iterator]();
+  }
+
+  toString() {
+    return Object.entries(this.toJSON()).map(([header, value]) => header + ': ' + value).join('\n');
+  }
+
+  get [Symbol.toStringTag]() {
+    return 'AxiosHeaders';
+  }
+
+  static from(thing) {
+    return thing instanceof this ? thing : new this(thing);
+  }
+
+  static concat(first, ...targets) {
+    const computed = new this(first);
+
+    targets.forEach((target) => computed.set(target));
+
+    return computed;
+  }
+
+  static accessor(header) {
+    const internals = this[$internals] = (this[$internals] = {
+      accessors: {}
+    });
+
+    const accessors = internals.accessors;
+    const prototype = this.prototype;
+
+    function defineAccessor(_header) {
+      const lHeader = normalizeHeader(_header);
+
+      if (!accessors[lHeader]) {
+        buildAccessors(prototype, _header);
+        accessors[lHeader] = true;
+      }
+    }
+
+    utils$1.isArray(header) ? header.forEach(defineAccessor) : defineAccessor(header);
+
+    return this;
+  }
+}
+
+AxiosHeaders.accessor(['Content-Type', 'Content-Length', 'Accept', 'Accept-Encoding', 'User-Agent', 'Authorization']);
+
+// reserved names hotfix
+utils$1.reduceDescriptors(AxiosHeaders.prototype, ({value}, key) => {
+  let mapped = key[0].toUpperCase() + key.slice(1); // map `set` => `Set`
+  return {
+    get: () => value,
+    set(headerValue) {
+      this[mapped] = headerValue;
+    }
+  }
+});
+
+utils$1.freezeMethods(AxiosHeaders);
+
+const AxiosHeaders$1 = AxiosHeaders;
+
+/**
+ * Transform the data for a request or a response
+ *
+ * @param {Array|Function} fns A single function or Array of functions
+ * @param {?Object} response The response object
+ *
+ * @returns {*} The resulting transformed data
+ */
+function transformData(fns, response) {
+  const config = this || defaults$1;
+  const context = response || config;
+  const headers = AxiosHeaders$1.from(context.headers);
+  let data = context.data;
+
+  utils$1.forEach(fns, function transform(fn) {
+    data = fn.call(config, data, headers.normalize(), response ? response.status : undefined);
+  });
+
+  headers.normalize();
+
+  return data;
+}
+
+function isCancel(value) {
+  return !!(value && value.__CANCEL__);
+}
+
+/**
+ * A `CanceledError` is an object that is thrown when an operation is canceled.
+ *
+ * @param {string=} message The message.
+ * @param {Object=} config The config.
+ * @param {Object=} request The request.
+ *
+ * @returns {CanceledError} The created error.
+ */
+function CanceledError(message, config, request) {
+  // eslint-disable-next-line no-eq-null,eqeqeq
+  AxiosError.call(this, message == null ? 'canceled' : message, AxiosError.ERR_CANCELED, config, request);
+  this.name = 'CanceledError';
+}
+
+utils$1.inherits(CanceledError, AxiosError, {
+  __CANCEL__: true
+});
+
+/**
+ * Resolve or reject a Promise based on response status.
+ *
+ * @param {Function} resolve A function that resolves the promise.
+ * @param {Function} reject A function that rejects the promise.
+ * @param {object} response The response.
+ *
+ * @returns {object} The response.
+ */
+function settle(resolve, reject, response) {
+  const validateStatus = response.config.validateStatus;
+  if (!response.status || !validateStatus || validateStatus(response.status)) {
+    resolve(response);
+  } else {
+    reject(new AxiosError(
+      'Request failed with status code ' + response.status,
+      [AxiosError.ERR_BAD_REQUEST, AxiosError.ERR_BAD_RESPONSE][Math.floor(response.status / 100) - 4],
+      response.config,
+      response.request,
+      response
+    ));
+  }
+}
+
+/**
+ * Determines whether the specified URL is absolute
+ *
+ * @param {string} url The URL to test
+ *
+ * @returns {boolean} True if the specified URL is absolute, otherwise false
+ */
+function isAbsoluteURL(url) {
+  // A URL is considered absolute if it begins with "<scheme>://" or "//" (protocol-relative URL).
+  // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed
+  // by any combination of letters, digits, plus, period, or hyphen.
+  return /^([a-z][a-z\d+\-.]*:)?\/\//i.test(url);
+}
+
+/**
+ * Creates a new URL by combining the specified URLs
+ *
+ * @param {string} baseURL The base URL
+ * @param {string} relativeURL The relative URL
+ *
+ * @returns {string} The combined URL
+ */
+function combineURLs(baseURL, relativeURL) {
+  return relativeURL
+    ? baseURL.replace(/\/?\/$/, '') + '/' + relativeURL.replace(/^\/+/, '')
+    : baseURL;
+}
+
+/**
+ * Creates a new URL by combining the baseURL with the requestedURL,
+ * only when the requestedURL is not already an absolute URL.
+ * If the requestURL is absolute, this function returns the requestedURL untouched.
+ *
+ * @param {string} baseURL The base URL
+ * @param {string} requestedURL Absolute or relative URL to combine
+ *
+ * @returns {string} The combined full path
+ */
+function buildFullPath(baseURL, requestedURL) {
+  if (baseURL && !isAbsoluteURL(requestedURL)) {
+    return combineURLs(baseURL, requestedURL);
+  }
+  return requestedURL;
+}
+
+const VERSION = "1.7.9";
+
+function parseProtocol(url) {
+  const match = /^([-+\w]{1,25})(:?\/\/|:)/.exec(url);
+  return match && match[1] || '';
+}
+
+const DATA_URL_PATTERN = /^(?:([^;]+);)?(?:[^;]+;)?(base64|),([\s\S]*)$/;
+
+/**
+ * Parse data uri to a Buffer or Blob
+ *
+ * @param {String} uri
+ * @param {?Boolean} asBlob
+ * @param {?Object} options
+ * @param {?Function} options.Blob
+ *
+ * @returns {Buffer|Blob}
+ */
+function fromDataURI(uri, asBlob, options) {
+  const _Blob = options && options.Blob || platform.classes.Blob;
+  const protocol = parseProtocol(uri);
+
+  if (asBlob === undefined && _Blob) {
+    asBlob = true;
+  }
+
+  if (protocol === 'data') {
+    uri = protocol.length ? uri.slice(protocol.length + 1) : uri;
+
+    const match = DATA_URL_PATTERN.exec(uri);
+
+    if (!match) {
+      throw new AxiosError('Invalid URL', AxiosError.ERR_INVALID_URL);
+    }
+
+    const mime = match[1];
+    const isBase64 = match[2];
+    const body = match[3];
+    const buffer = Buffer.from(decodeURIComponent(body), isBase64 ? 'base64' : 'utf8');
+
+    if (asBlob) {
+      if (!_Blob) {
+        throw new AxiosError('Blob is not supported', AxiosError.ERR_NOT_SUPPORT);
+      }
+
+      return new _Blob([buffer], {type: mime});
+    }
+
+    return buffer;
+  }
+
+  throw new AxiosError('Unsupported protocol ' + protocol, AxiosError.ERR_NOT_SUPPORT);
+}
+
+const kInternals = Symbol('internals');
+
+class AxiosTransformStream extends stream__default["default"].Transform{
+  constructor(options) {
+    options = utils$1.toFlatObject(options, {
+      maxRate: 0,
+      chunkSize: 64 * 1024,
+      minChunkSize: 100,
+      timeWindow: 500,
+      ticksRate: 2,
+      samplesCount: 15
+    }, null, (prop, source) => {
+      return !utils$1.isUndefined(source[prop]);
+    });
+
+    super({
+      readableHighWaterMark: options.chunkSize
+    });
+
+    const internals = this[kInternals] = {
+      timeWindow: options.timeWindow,
+      chunkSize: options.chunkSize,
+      maxRate: options.maxRate,
+      minChunkSize: options.minChunkSize,
+      bytesSeen: 0,
+      isCaptured: false,
+      notifiedBytesLoaded: 0,
+      ts: Date.now(),
+      bytes: 0,
+      onReadCallback: null
+    };
+
+    this.on('newListener', event => {
+      if (event === 'progress') {
+        if (!internals.isCaptured) {
+          internals.isCaptured = true;
+        }
+      }
+    });
+  }
+
+  _read(size) {
+    const internals = this[kInternals];
+
+    if (internals.onReadCallback) {
+      internals.onReadCallback();
+    }
+
+    return super._read(size);
+  }
+
+  _transform(chunk, encoding, callback) {
+    const internals = this[kInternals];
+    const maxRate = internals.maxRate;
+
+    const readableHighWaterMark = this.readableHighWaterMark;
+
+    const timeWindow = internals.timeWindow;
+
+    const divider = 1000 / timeWindow;
+    const bytesThreshold = (maxRate / divider);
+    const minChunkSize = internals.minChunkSize !== false ? Math.max(internals.minChunkSize, bytesThreshold * 0.01) : 0;
+
+    const pushChunk = (_chunk, _callback) => {
+      const bytes = Buffer.byteLength(_chunk);
+      internals.bytesSeen += bytes;
+      internals.bytes += bytes;
+
+      internals.isCaptured && this.emit('progress', internals.bytesSeen);
+
+      if (this.push(_chunk)) {
+        process.nextTick(_callback);
+      } else {
+        internals.onReadCallback = () => {
+          internals.onReadCallback = null;
+          process.nextTick(_callback);
+        };
+      }
+    };
+
+    const transformChunk = (_chunk, _callback) => {
+      const chunkSize = Buffer.byteLength(_chunk);
+      let chunkRemainder = null;
+      let maxChunkSize = readableHighWaterMark;
+      let bytesLeft;
+      let passed = 0;
+
+      if (maxRate) {
+        const now = Date.now();
+
+        if (!internals.ts || (passed = (now - internals.ts)) >= timeWindow) {
+          internals.ts = now;
+          bytesLeft = bytesThreshold - internals.bytes;
+          internals.bytes = bytesLeft < 0 ? -bytesLeft : 0;
+          passed = 0;
+        }
+
+        bytesLeft = bytesThreshold - internals.bytes;
+      }
+
+      if (maxRate) {
+        if (bytesLeft <= 0) {
+          // next time window
+          return setTimeout(() => {
+            _callback(null, _chunk);
+          }, timeWindow - passed);
+        }
+
+        if (bytesLeft < maxChunkSize) {
+          maxChunkSize = bytesLeft;
+        }
+      }
+
+      if (maxChunkSize && chunkSize > maxChunkSize && (chunkSize - maxChunkSize) > minChunkSize) {
+        chunkRemainder = _chunk.subarray(maxChunkSize);
+        _chunk = _chunk.subarray(0, maxChunkSize);
+      }
+
+      pushChunk(_chunk, chunkRemainder ? () => {
+        process.nextTick(_callback, null, chunkRemainder);
+      } : _callback);
+    };
+
+    transformChunk(chunk, function transformNextChunk(err, _chunk) {
+      if (err) {
+        return callback(err);
+      }
+
+      if (_chunk) {
+        transformChunk(_chunk, transformNextChunk);
+      } else {
+        callback(null);
+      }
+    });
+  }
+}
+
+const AxiosTransformStream$1 = AxiosTransformStream;
+
+const {asyncIterator} = Symbol;
+
+const readBlob = async function* (blob) {
+  if (blob.stream) {
+    yield* blob.stream();
+  } else if (blob.arrayBuffer) {
+    yield await blob.arrayBuffer();
+  } else if (blob[asyncIterator]) {
+    yield* blob[asyncIterator]();
+  } else {
+    yield blob;
+  }
+};
+
+const readBlob$1 = readBlob;
+
+const BOUNDARY_ALPHABET = utils$1.ALPHABET.ALPHA_DIGIT + '-_';
+
+const textEncoder = typeof TextEncoder === 'function' ? new TextEncoder() : new util__default["default"].TextEncoder();
+
+const CRLF = '\r\n';
+const CRLF_BYTES = textEncoder.encode(CRLF);
+const CRLF_BYTES_COUNT = 2;
+
+class FormDataPart {
+  constructor(name, value) {
+    const {escapeName} = this.constructor;
+    const isStringValue = utils$1.isString(value);
+
+    let headers = `Content-Disposition: form-data; name="${escapeName(name)}"${
+      !isStringValue && value.name ? `; filename="${escapeName(value.name)}"` : ''
+    }${CRLF}`;
+
+    if (isStringValue) {
+      value = textEncoder.encode(String(value).replace(/\r?\n|\r\n?/g, CRLF));
+    } else {
+      headers += `Content-Type: ${value.type || "application/octet-stream"}${CRLF}`;
+    }
+
+    this.headers = textEncoder.encode(headers + CRLF);
+
+    this.contentLength = isStringValue ? value.byteLength : value.size;
+
+    this.size = this.headers.byteLength + this.contentLength + CRLF_BYTES_COUNT;
+
+    this.name = name;
+    this.value = value;
+  }
+
+  async *encode(){
+    yield this.headers;
+
+    const {value} = this;
+
+    if(utils$1.isTypedArray(value)) {
+      yield value;
+    } else {
+      yield* readBlob$1(value);
+    }
+
+    yield CRLF_BYTES;
+  }
+
+  static escapeName(name) {
+      return String(name).replace(/[\r\n"]/g, (match) => ({
+        '\r' : '%0D',
+        '\n' : '%0A',
+        '"' : '%22',
+      }[match]));
+  }
+}
+
+const formDataToStream = (form, headersHandler, options) => {
+  const {
+    tag = 'form-data-boundary',
+    size = 25,
+    boundary = tag + '-' + utils$1.generateString(size, BOUNDARY_ALPHABET)
+  } = options || {};
+
+  if(!utils$1.isFormData(form)) {
+    throw TypeError('FormData instance required');
+  }
+
+  if (boundary.length < 1 || boundary.length > 70) {
+    throw Error('boundary must be 10-70 characters long')
+  }
+
+  const boundaryBytes = textEncoder.encode('--' + boundary + CRLF);
+  const footerBytes = textEncoder.encode('--' + boundary + '--' + CRLF + CRLF);
+  let contentLength = footerBytes.byteLength;
+
+  const parts = Array.from(form.entries()).map(([name, value]) => {
+    const part = new FormDataPart(name, value);
+    contentLength += part.size;
+    return part;
+  });
+
+  contentLength += boundaryBytes.byteLength * parts.length;
+
+  contentLength = utils$1.toFiniteNumber(contentLength);
+
+  const computedHeaders = {
+    'Content-Type': `multipart/form-data; boundary=${boundary}`
+  };
+
+  if (Number.isFinite(contentLength)) {
+    computedHeaders['Content-Length'] = contentLength;
+  }
+
+  headersHandler && headersHandler(computedHeaders);
+
+  return stream.Readable.from((async function *() {
+    for(const part of parts) {
+      yield boundaryBytes;
+      yield* part.encode();
+    }
+
+    yield footerBytes;
+  })());
+};
+
+const formDataToStream$1 = formDataToStream;
+
+class ZlibHeaderTransformStream extends stream__default["default"].Transform {
+  __transform(chunk, encoding, callback) {
+    this.push(chunk);
+    callback();
+  }
+
+  _transform(chunk, encoding, callback) {
+    if (chunk.length !== 0) {
+      this._transform = this.__transform;
+
+      // Add Default Compression headers if no zlib headers are present
+      if (chunk[0] !== 120) { // Hex: 78
+        const header = Buffer.alloc(2);
+        header[0] = 120; // Hex: 78
+        header[1] = 156; // Hex: 9C 
+        this.push(header, encoding);
+      }
+    }
+
+    this.__transform(chunk, encoding, callback);
+  }
+}
+
+const ZlibHeaderTransformStream$1 = ZlibHeaderTransformStream;
+
+const callbackify = (fn, reducer) => {
+  return utils$1.isAsyncFn(fn) ? function (...args) {
+    const cb = args.pop();
+    fn.apply(this, args).then((value) => {
+      try {
+        reducer ? cb(null, ...reducer(value)) : cb(null, value);
+      } catch (err) {
+        cb(err);
+      }
+    }, cb);
+  } : fn;
+};
+
+const callbackify$1 = callbackify;
+
+/**
+ * Calculate data maxRate
+ * @param {Number} [samplesCount= 10]
+ * @param {Number} [min= 1000]
+ * @returns {Function}
+ */
+function speedometer(samplesCount, min) {
+  samplesCount = samplesCount || 10;
+  const bytes = new Array(samplesCount);
+  const timestamps = new Array(samplesCount);
+  let head = 0;
+  let tail = 0;
+  let firstSampleTS;
+
+  min = min !== undefined ? min : 1000;
+
+  return function push(chunkLength) {
+    const now = Date.now();
+
+    const startedAt = timestamps[tail];
+
+    if (!firstSampleTS) {
+      firstSampleTS = now;
+    }
+
+    bytes[head] = chunkLength;
+    timestamps[head] = now;
+
+    let i = tail;
+    let bytesCount = 0;
+
+    while (i !== head) {
+      bytesCount += bytes[i++];
+      i = i % samplesCount;
+    }
+
+    head = (head + 1) % samplesCount;
+
+    if (head === tail) {
+      tail = (tail + 1) % samplesCount;
+    }
+
+    if (now - firstSampleTS < min) {
+      return;
+    }
+
+    const passed = startedAt && now - startedAt;
+
+    return passed ? Math.round(bytesCount * 1000 / passed) : undefined;
+  };
+}
+
+/**
+ * Throttle decorator
+ * @param {Function} fn
+ * @param {Number} freq
+ * @return {Function}
+ */
+function throttle(fn, freq) {
+  let timestamp = 0;
+  let threshold = 1000 / freq;
+  let lastArgs;
+  let timer;
+
+  const invoke = (args, now = Date.now()) => {
+    timestamp = now;
+    lastArgs = null;
+    if (timer) {
+      clearTimeout(timer);
+      timer = null;
+    }
+    fn.apply(null, args);
+  };
+
+  const throttled = (...args) => {
+    const now = Date.now();
+    const passed = now - timestamp;
+    if ( passed >= threshold) {
+      invoke(args, now);
+    } else {
+      lastArgs = args;
+      if (!timer) {
+        timer = setTimeout(() => {
+          timer = null;
+          invoke(lastArgs);
+        }, threshold - passed);
+      }
+    }
+  };
+
+  const flush = () => lastArgs && invoke(lastArgs);
+
+  return [throttled, flush];
+}
+
+const progressEventReducer = (listener, isDownloadStream, freq = 3) => {
+  let bytesNotified = 0;
+  const _speedometer = speedometer(50, 250);
+
+  return throttle(e => {
+    const loaded = e.loaded;
+    const total = e.lengthComputable ? e.total : undefined;
+    const progressBytes = loaded - bytesNotified;
+    const rate = _speedometer(progressBytes);
+    const inRange = loaded <= total;
+
+    bytesNotified = loaded;
+
+    const data = {
+      loaded,
+      total,
+      progress: total ? (loaded / total) : undefined,
+      bytes: progressBytes,
+      rate: rate ? rate : undefined,
+      estimated: rate && total && inRange ? (total - loaded) / rate : undefined,
+      event: e,
+      lengthComputable: total != null,
+      [isDownloadStream ? 'download' : 'upload']: true
+    };
+
+    listener(data);
+  }, freq);
+};
+
+const progressEventDecorator = (total, throttled) => {
+  const lengthComputable = total != null;
+
+  return [(loaded) => throttled[0]({
+    lengthComputable,
+    total,
+    loaded
+  }), throttled[1]];
+};
+
+const asyncDecorator = (fn) => (...args) => utils$1.asap(() => fn(...args));
+
+const zlibOptions = {
+  flush: zlib__default["default"].constants.Z_SYNC_FLUSH,
+  finishFlush: zlib__default["default"].constants.Z_SYNC_FLUSH
+};
+
+const brotliOptions = {
+  flush: zlib__default["default"].constants.BROTLI_OPERATION_FLUSH,
+  finishFlush: zlib__default["default"].constants.BROTLI_OPERATION_FLUSH
+};
+
+const isBrotliSupported = utils$1.isFunction(zlib__default["default"].createBrotliDecompress);
+
+const {http: httpFollow, https: httpsFollow} = followRedirects__default["default"];
+
+const isHttps = /https:?/;
+
+const supportedProtocols = platform.protocols.map(protocol => {
+  return protocol + ':';
+});
+
+const flushOnFinish = (stream, [throttled, flush]) => {
+  stream
+    .on('end', flush)
+    .on('error', flush);
+
+  return throttled;
+};
+
+/**
+ * If the proxy or config beforeRedirects functions are defined, call them with the options
+ * object.
+ *
+ * @param {Object<string, any>} options - The options object that was passed to the request.
+ *
+ * @returns {Object<string, any>}
+ */
+function dispatchBeforeRedirect(options, responseDetails) {
+  if (options.beforeRedirects.proxy) {
+    options.beforeRedirects.proxy(options);
+  }
+  if (options.beforeRedirects.config) {
+    options.beforeRedirects.config(options, responseDetails);
+  }
+}
+
+/**
+ * If the proxy or config afterRedirects functions are defined, call them with the options
+ *
+ * @param {http.ClientRequestArgs} options
+ * @param {AxiosProxyConfig} configProxy configuration from Axios options object
+ * @param {string} location
+ *
+ * @returns {http.ClientRequestArgs}
+ */
+function setProxy(options, configProxy, location) {
+  let proxy = configProxy;
+  if (!proxy && proxy !== false) {
+    const proxyUrl = proxyFromEnv__default["default"].getProxyForUrl(location);
+    if (proxyUrl) {
+      proxy = new URL(proxyUrl);
+    }
+  }
+  if (proxy) {
+    // Basic proxy authorization
+    if (proxy.username) {
+      proxy.auth = (proxy.username || '') + ':' + (proxy.password || '');
+    }
+
+    if (proxy.auth) {
+      // Support proxy auth object form
+      if (proxy.auth.username || proxy.auth.password) {
+        proxy.auth = (proxy.auth.username || '') + ':' + (proxy.auth.password || '');
+      }
+      const base64 = Buffer
+        .from(proxy.auth, 'utf8')
+        .toString('base64');
+      options.headers['Proxy-Authorization'] = 'Basic ' + base64;
+    }
+
+    options.headers.host = options.hostname + (options.port ? ':' + options.port : '');
+    const proxyHost = proxy.hostname || proxy.host;
+    options.hostname = proxyHost;
+    // Replace 'host' since options is not a URL object
+    options.host = proxyHost;
+    options.port = proxy.port;
+    options.path = location;
+    if (proxy.protocol) {
+      options.protocol = proxy.protocol.includes(':') ? proxy.protocol : `${proxy.protocol}:`;
+    }
+  }
+
+  options.beforeRedirects.proxy = function beforeRedirect(redirectOptions) {
+    // Configure proxy for redirected request, passing the original config proxy to apply
+    // the exact same logic as if the redirected request was performed by axios directly.
+    setProxy(redirectOptions, configProxy, redirectOptions.href);
+  };
+}
+
+const isHttpAdapterSupported = typeof process !== 'undefined' && utils$1.kindOf(process) === 'process';
+
+// temporary hotfix
+
+const wrapAsync = (asyncExecutor) => {
+  return new Promise((resolve, reject) => {
+    let onDone;
+    let isDone;
+
+    const done = (value, isRejected) => {
+      if (isDone) return;
+      isDone = true;
+      onDone && onDone(value, isRejected);
+    };
+
+    const _resolve = (value) => {
+      done(value);
+      resolve(value);
+    };
+
+    const _reject = (reason) => {
+      done(reason, true);
+      reject(reason);
+    };
+
+    asyncExecutor(_resolve, _reject, (onDoneHandler) => (onDone = onDoneHandler)).catch(_reject);
+  })
+};
+
+const resolveFamily = ({address, family}) => {
+  if (!utils$1.isString(address)) {
+    throw TypeError('address must be a string');
+  }
+  return ({
+    address,
+    family: family || (address.indexOf('.') < 0 ? 6 : 4)
+  });
+};
+
+const buildAddressEntry = (address, family) => resolveFamily(utils$1.isObject(address) ? address : {address, family});
+
+/*eslint consistent-return:0*/
+const httpAdapter = isHttpAdapterSupported && function httpAdapter(config) {
+  return wrapAsync(async function dispatchHttpRequest(resolve, reject, onDone) {
+    let {data, lookup, family} = config;
+    const {responseType, responseEncoding} = config;
+    const method = config.method.toUpperCase();
+    let isDone;
+    let rejected = false;
+    let req;
+
+    if (lookup) {
+      const _lookup = callbackify$1(lookup, (value) => utils$1.isArray(value) ? value : [value]);
+      // hotfix to support opt.all option which is required for node 20.x
+      lookup = (hostname, opt, cb) => {
+        _lookup(hostname, opt, (err, arg0, arg1) => {
+          if (err) {
+            return cb(err);
+          }
+
+          const addresses = utils$1.isArray(arg0) ? arg0.map(addr => buildAddressEntry(addr)) : [buildAddressEntry(arg0, arg1)];
+
+          opt.all ? cb(err, addresses) : cb(err, addresses[0].address, addresses[0].family);
+        });
+      };
+    }
+
+    // temporary internal emitter until the AxiosRequest class will be implemented
+    const emitter = new events.EventEmitter();
+
+    const onFinished = () => {
+      if (config.cancelToken) {
+        config.cancelToken.unsubscribe(abort);
+      }
+
+      if (config.signal) {
+        config.signal.removeEventListener('abort', abort);
+      }
+
+      emitter.removeAllListeners();
+    };
+
+    onDone((value, isRejected) => {
+      isDone = true;
+      if (isRejected) {
+        rejected = true;
+        onFinished();
+      }
+    });
+
+    function abort(reason) {
+      emitter.emit('abort', !reason || reason.type ? new CanceledError(null, config, req) : reason);
+    }
+
+    emitter.once('abort', reject);
+
+    if (config.cancelToken || config.signal) {
+      config.cancelToken && config.cancelToken.subscribe(abort);
+      if (config.signal) {
+        config.signal.aborted ? abort() : config.signal.addEventListener('abort', abort);
+      }
+    }
+
+    // Parse url
+    const fullPath = buildFullPath(config.baseURL, config.url);
+    const parsed = new URL(fullPath, platform.hasBrowserEnv ? platform.origin : undefined);
+    const protocol = parsed.protocol || supportedProtocols[0];
+
+    if (protocol === 'data:') {
+      let convertedData;
+
+      if (method !== 'GET') {
+        return settle(resolve, reject, {
+          status: 405,
+          statusText: 'method not allowed',
+          headers: {},
+          config
+        });
+      }
+
+      try {
+        convertedData = fromDataURI(config.url, responseType === 'blob', {
+          Blob: config.env && config.env.Blob
+        });
+      } catch (err) {
+        throw AxiosError.from(err, AxiosError.ERR_BAD_REQUEST, config);
+      }
+
+      if (responseType === 'text') {
+        convertedData = convertedData.toString(responseEncoding);
+
+        if (!responseEncoding || responseEncoding === 'utf8') {
+          convertedData = utils$1.stripBOM(convertedData);
+        }
+      } else if (responseType === 'stream') {
+        convertedData = stream__default["default"].Readable.from(convertedData);
+      }
+
+      return settle(resolve, reject, {
+        data: convertedData,
+        status: 200,
+        statusText: 'OK',
+        headers: new AxiosHeaders$1(),
+        config
+      });
+    }
+
+    if (supportedProtocols.indexOf(protocol) === -1) {
+      return reject(new AxiosError(
+        'Unsupported protocol ' + protocol,
+        AxiosError.ERR_BAD_REQUEST,
+        config
+      ));
+    }
+
+    const headers = AxiosHeaders$1.from(config.headers).normalize();
+
+    // Set User-Agent (required by some servers)
+    // See https://github.com/axios/axios/issues/69
+    // User-Agent is specified; handle case where no UA header is desired
+    // Only set header if it hasn't been set in config
+    headers.set('User-Agent', 'axios/' + VERSION, false);
+
+    const {onUploadProgress, onDownloadProgress} = config;
+    const maxRate = config.maxRate;
+    let maxUploadRate = undefined;
+    let maxDownloadRate = undefined;
+
+    // support for spec compliant FormData objects
+    if (utils$1.isSpecCompliantForm(data)) {
+      const userBoundary = headers.getContentType(/boundary=([-_\w\d]{10,70})/i);
+
+      data = formDataToStream$1(data, (formHeaders) => {
+        headers.set(formHeaders);
+      }, {
+        tag: `axios-${VERSION}-boundary`,
+        boundary: userBoundary && userBoundary[1] || undefined
+      });
+      // support for https://www.npmjs.com/package/form-data api
+    } else if (utils$1.isFormData(data) && utils$1.isFunction(data.getHeaders)) {
+      headers.set(data.getHeaders());
+
+      if (!headers.hasContentLength()) {
+        try {
+          const knownLength = await util__default["default"].promisify(data.getLength).call(data);
+          Number.isFinite(knownLength) && knownLength >= 0 && headers.setContentLength(knownLength);
+          /*eslint no-empty:0*/
+        } catch (e) {
+        }
+      }
+    } else if (utils$1.isBlob(data) || utils$1.isFile(data)) {
+      data.size && headers.setContentType(data.type || 'application/octet-stream');
+      headers.setContentLength(data.size || 0);
+      data = stream__default["default"].Readable.from(readBlob$1(data));
+    } else if (data && !utils$1.isStream(data)) {
+      if (Buffer.isBuffer(data)) ; else if (utils$1.isArrayBuffer(data)) {
+        data = Buffer.from(new Uint8Array(data));
+      } else if (utils$1.isString(data)) {
+        data = Buffer.from(data, 'utf-8');
+      } else {
+        return reject(new AxiosError(
+          'Data after transformation must be a string, an ArrayBuffer, a Buffer, or a Stream',
+          AxiosError.ERR_BAD_REQUEST,
+          config
+        ));
+      }
+
+      // Add Content-Length header if data exists
+      headers.setContentLength(data.length, false);
+
+      if (config.maxBodyLength > -1 && data.length > config.maxBodyLength) {
+        return reject(new AxiosError(
+          'Request body larger than maxBodyLength limit',
+          AxiosError.ERR_BAD_REQUEST,
+          config
+        ));
+      }
+    }
+
+    const contentLength = utils$1.toFiniteNumber(headers.getContentLength());
+
+    if (utils$1.isArray(maxRate)) {
+      maxUploadRate = maxRate[0];
+      maxDownloadRate = maxRate[1];
+    } else {
+      maxUploadRate = maxDownloadRate = maxRate;
+    }
+
+    if (data && (onUploadProgress || maxUploadRate)) {
+      if (!utils$1.isStream(data)) {
+        data = stream__default["default"].Readable.from(data, {objectMode: false});
+      }
+
+      data = stream__default["default"].pipeline([data, new AxiosTransformStream$1({
+        maxRate: utils$1.toFiniteNumber(maxUploadRate)
+      })], utils$1.noop);
+
+      onUploadProgress && data.on('progress', flushOnFinish(
+        data,
+        progressEventDecorator(
+          contentLength,
+          progressEventReducer(asyncDecorator(onUploadProgress), false, 3)
+        )
+      ));
+    }
+
+    // HTTP basic authentication
+    let auth = undefined;
+    if (config.auth) {
+      const username = config.auth.username || '';
+      const password = config.auth.password || '';
+      auth = username + ':' + password;
+    }
+
+    if (!auth && parsed.username) {
+      const urlUsername = parsed.username;
+      const urlPassword = parsed.password;
+      auth = urlUsername + ':' + urlPassword;
+    }
+
+    auth && headers.delete('authorization');
+
+    let path;
+
+    try {
+      path = buildURL(
+        parsed.pathname + parsed.search,
+        config.params,
+        config.paramsSerializer
+      ).replace(/^\?/, '');
+    } catch (err) {
+      const customErr = new Error(err.message);
+      customErr.config = config;
+      customErr.url = config.url;
+      customErr.exists = true;
+      return reject(customErr);
+    }
+
+    headers.set(
+      'Accept-Encoding',
+      'gzip, compress, deflate' + (isBrotliSupported ? ', br' : ''), false
+      );
+
+    const options = {
+      path,
+      method: method,
+      headers: headers.toJSON(),
+      agents: { http: config.httpAgent, https: config.httpsAgent },
+      auth,
+      protocol,
+      family,
+      beforeRedirect: dispatchBeforeRedirect,
+      beforeRedirects: {}
+    };
+
+    // cacheable-lookup integration hotfix
+    !utils$1.isUndefined(lookup) && (options.lookup = lookup);
+
+    if (config.socketPath) {
+      options.socketPath = config.socketPath;
+    } else {
+      options.hostname = parsed.hostname.startsWith("[") ? parsed.hostname.slice(1, -1) : parsed.hostname;
+      options.port = parsed.port;
+      setProxy(options, config.proxy, protocol + '//' + parsed.hostname + (parsed.port ? ':' + parsed.port : '') + options.path);
+    }
+
+    let transport;
+    const isHttpsRequest = isHttps.test(options.protocol);
+    options.agent = isHttpsRequest ? config.httpsAgent : config.httpAgent;
+    if (config.transport) {
+      transport = config.transport;
+    } else if (config.maxRedirects === 0) {
+      transport = isHttpsRequest ? https__default["default"] : http__default["default"];
+    } else {
+      if (config.maxRedirects) {
+        options.maxRedirects = config.maxRedirects;
+      }
+      if (config.beforeRedirect) {
+        options.beforeRedirects.config = config.beforeRedirect;
+      }
+      transport = isHttpsRequest ? httpsFollow : httpFollow;
+    }
+
+    if (config.maxBodyLength > -1) {
+      options.maxBodyLength = config.maxBodyLength;
+    } else {
+      // follow-redirects does not skip comparison, so it should always succeed for axios -1 unlimited
+      options.maxBodyLength = Infinity;
+    }
+
+    if (config.insecureHTTPParser) {
+      options.insecureHTTPParser = config.insecureHTTPParser;
+    }
+
+    // Create the request
+    req = transport.request(options, function handleResponse(res) {
+      if (req.destroyed) return;
+
+      const streams = [res];
+
+      const responseLength = +res.headers['content-length'];
+
+      if (onDownloadProgress || maxDownloadRate) {
+        const transformStream = new AxiosTransformStream$1({
+          maxRate: utils$1.toFiniteNumber(maxDownloadRate)
+        });
+
+        onDownloadProgress && transformStream.on('progress', flushOnFinish(
+          transformStream,
+          progressEventDecorator(
+            responseLength,
+            progressEventReducer(asyncDecorator(onDownloadProgress), true, 3)
+          )
+        ));
+
+        streams.push(transformStream);
+      }
+
+      // decompress the response body transparently if required
+      let responseStream = res;
+
+      // return the last request in case of redirects
+      const lastRequest = res.req || req;
+
+      // if decompress disabled we should not decompress
+      if (config.decompress !== false && res.headers['content-encoding']) {
+        // if no content, but headers still say that it is encoded,
+        // remove the header not confuse downstream operations
+        if (method === 'HEAD' || res.statusCode === 204) {
+          delete res.headers['content-encoding'];
+        }
+
+        switch ((res.headers['content-encoding'] || '').toLowerCase()) {
+        /*eslint default-case:0*/
+        case 'gzip':
+        case 'x-gzip':
+        case 'compress':
+        case 'x-compress':
+          // add the unzipper to the body stream processing pipeline
+          streams.push(zlib__default["default"].createUnzip(zlibOptions));
+
+          // remove the content-encoding in order to not confuse downstream operations
+          delete res.headers['content-encoding'];
+          break;
+        case 'deflate':
+          streams.push(new ZlibHeaderTransformStream$1());
+
+          // add the unzipper to the body stream processing pipeline
+          streams.push(zlib__default["default"].createUnzip(zlibOptions));
+
+          // remove the content-encoding in order to not confuse downstream operations
+          delete res.headers['content-encoding'];
+          break;
+        case 'br':
+          if (isBrotliSupported) {
+            streams.push(zlib__default["default"].createBrotliDecompress(brotliOptions));
+            delete res.headers['content-encoding'];
+          }
+        }
+      }
+
+      responseStream = streams.length > 1 ? stream__default["default"].pipeline(streams, utils$1.noop) : streams[0];
+
+      const offListeners = stream__default["default"].finished(responseStream, () => {
+        offListeners();
+        onFinished();
+      });
+
+      const response = {
+        status: res.statusCode,
+        statusText: res.statusMessage,
+        headers: new AxiosHeaders$1(res.headers),
+        config,
+        request: lastRequest
+      };
+
+      if (responseType === 'stream') {
+        response.data = responseStream;
+        settle(resolve, reject, response);
+      } else {
+        const responseBuffer = [];
+        let totalResponseBytes = 0;
+
+        responseStream.on('data', function handleStreamData(chunk) {
+          responseBuffer.push(chunk);
+          totalResponseBytes += chunk.length;
+
+          // make sure the content length is not over the maxContentLength if specified
+          if (config.maxContentLength > -1 && totalResponseBytes > config.maxContentLength) {
+            // stream.destroy() emit aborted event before calling reject() on Node.js v16
+            rejected = true;
+            responseStream.destroy();
+            reject(new AxiosError('maxContentLength size of ' + config.maxContentLength + ' exceeded',
+              AxiosError.ERR_BAD_RESPONSE, config, lastRequest));
+          }
+        });
+
+        responseStream.on('aborted', function handlerStreamAborted() {
+          if (rejected) {
+            return;
+          }
+
+          const err = new AxiosError(
+            'stream has been aborted',
+            AxiosError.ERR_BAD_RESPONSE,
+            config,
+            lastRequest
+          );
+          responseStream.destroy(err);
+          reject(err);
+        });
+
+        responseStream.on('error', function handleStreamError(err) {
+          if (req.destroyed) return;
+          reject(AxiosError.from(err, null, config, lastRequest));
+        });
+
+        responseStream.on('end', function handleStreamEnd() {
+          try {
+            let responseData = responseBuffer.length === 1 ? responseBuffer[0] : Buffer.concat(responseBuffer);
+            if (responseType !== 'arraybuffer') {
+              responseData = responseData.toString(responseEncoding);
+              if (!responseEncoding || responseEncoding === 'utf8') {
+                responseData = utils$1.stripBOM(responseData);
+              }
+            }
+            response.data = responseData;
+          } catch (err) {
+            return reject(AxiosError.from(err, null, config, response.request, response));
+          }
+          settle(resolve, reject, response);
+        });
+      }
+
+      emitter.once('abort', err => {
+        if (!responseStream.destroyed) {
+          responseStream.emit('error', err);
+          responseStream.destroy();
+        }
+      });
+    });
+
+    emitter.once('abort', err => {
+      reject(err);
+      req.destroy(err);
+    });
+
+    // Handle errors
+    req.on('error', function handleRequestError(err) {
+      // @todo remove
+      // if (req.aborted && err.code !== AxiosError.ERR_FR_TOO_MANY_REDIRECTS) return;
+      reject(AxiosError.from(err, null, config, req));
+    });
+
+    // set tcp keep alive to prevent drop connection by peer
+    req.on('socket', function handleRequestSocket(socket) {
+      // default interval of sending ack packet is 1 minute
+      socket.setKeepAlive(true, 1000 * 60);
+    });
+
+    // Handle request timeout
+    if (config.timeout) {
+      // This is forcing a int timeout to avoid problems if the `req` interface doesn't handle other types.
+      const timeout = parseInt(config.timeout, 10);
+
+      if (Number.isNaN(timeout)) {
+        reject(new AxiosError(
+          'error trying to parse `config.timeout` to int',
+          AxiosError.ERR_BAD_OPTION_VALUE,
+          config,
+          req
+        ));
+
+        return;
+      }
+
+      // Sometime, the response will be very slow, and does not respond, the connect event will be block by event loop system.
+      // And timer callback will be fired, and abort() will be invoked before connection, then get "socket hang up" and code ECONNRESET.
+      // At this time, if we have a large number of request, nodejs will hang up some socket on background. and the number will up and up.
+      // And then these socket which be hang up will devouring CPU little by little.
+      // ClientRequest.setTimeout will be fired on the specify milliseconds, and can make sure that abort() will be fired after connect.
+      req.setTimeout(timeout, function handleRequestTimeout() {
+        if (isDone) return;
+        let timeoutErrorMessage = config.timeout ? 'timeout of ' + config.timeout + 'ms exceeded' : 'timeout exceeded';
+        const transitional = config.transitional || transitionalDefaults;
+        if (config.timeoutErrorMessage) {
+          timeoutErrorMessage = config.timeoutErrorMessage;
+        }
+        reject(new AxiosError(
+          timeoutErrorMessage,
+          transitional.clarifyTimeoutError ? AxiosError.ETIMEDOUT : AxiosError.ECONNABORTED,
+          config,
+          req
+        ));
+        abort();
+      });
+    }
+
+
+    // Send the request
+    if (utils$1.isStream(data)) {
+      let ended = false;
+      let errored = false;
+
+      data.on('end', () => {
+        ended = true;
+      });
+
+      data.once('error', err => {
+        errored = true;
+        req.destroy(err);
+      });
+
+      data.on('close', () => {
+        if (!ended && !errored) {
+          abort(new CanceledError('Request stream has been aborted', config, req));
+        }
+      });
+
+      data.pipe(req);
+    } else {
+      req.end(data);
+    }
+  });
+};
+
+const isURLSameOrigin = platform.hasStandardBrowserEnv ? ((origin, isMSIE) => (url) => {
+  url = new URL(url, platform.origin);
+
+  return (
+    origin.protocol === url.protocol &&
+    origin.host === url.host &&
+    (isMSIE || origin.port === url.port)
+  );
+})(
+  new URL(platform.origin),
+  platform.navigator && /(msie|trident)/i.test(platform.navigator.userAgent)
+) : () => true;
+
+const cookies = platform.hasStandardBrowserEnv ?
+
+  // Standard browser envs support document.cookie
+  {
+    write(name, value, expires, path, domain, secure) {
+      const cookie = [name + '=' + encodeURIComponent(value)];
+
+      utils$1.isNumber(expires) && cookie.push('expires=' + new Date(expires).toGMTString());
+
+      utils$1.isString(path) && cookie.push('path=' + path);
+
+      utils$1.isString(domain) && cookie.push('domain=' + domain);
+
+      secure === true && cookie.push('secure');
+
+      document.cookie = cookie.join('; ');
+    },
+
+    read(name) {
+      const match = document.cookie.match(new RegExp('(^|;\\s*)(' + name + ')=([^;]*)'));
+      return (match ? decodeURIComponent(match[3]) : null);
+    },
+
+    remove(name) {
+      this.write(name, '', Date.now() - 86400000);
+    }
+  }
+
+  :
+
+  // Non-standard browser env (web workers, react-native) lack needed support.
+  {
+    write() {},
+    read() {
+      return null;
+    },
+    remove() {}
+  };
+
+const headersToObject = (thing) => thing instanceof AxiosHeaders$1 ? { ...thing } : thing;
+
+/**
+ * Config-specific merge-function which creates a new config-object
+ * by merging two configuration objects together.
+ *
+ * @param {Object} config1
+ * @param {Object} config2
+ *
+ * @returns {Object} New object resulting from merging config2 to config1
+ */
+function mergeConfig(config1, config2) {
+  // eslint-disable-next-line no-param-reassign
+  config2 = config2 || {};
+  const config = {};
+
+  function getMergedValue(target, source, prop, caseless) {
+    if (utils$1.isPlainObject(target) && utils$1.isPlainObject(source)) {
+      return utils$1.merge.call({caseless}, target, source);
+    } else if (utils$1.isPlainObject(source)) {
+      return utils$1.merge({}, source);
+    } else if (utils$1.isArray(source)) {
+      return source.slice();
+    }
+    return source;
+  }
+
+  // eslint-disable-next-line consistent-return
+  function mergeDeepProperties(a, b, prop , caseless) {
+    if (!utils$1.isUndefined(b)) {
+      return getMergedValue(a, b, prop , caseless);
+    } else if (!utils$1.isUndefined(a)) {
+      return getMergedValue(undefined, a, prop , caseless);
+    }
+  }
+
+  // eslint-disable-next-line consistent-return
+  function valueFromConfig2(a, b) {
+    if (!utils$1.isUndefined(b)) {
+      return getMergedValue(undefined, b);
+    }
+  }
+
+  // eslint-disable-next-line consistent-return
+  function defaultToConfig2(a, b) {
+    if (!utils$1.isUndefined(b)) {
+      return getMergedValue(undefined, b);
+    } else if (!utils$1.isUndefined(a)) {
+      return getMergedValue(undefined, a);
+    }
+  }
+
+  // eslint-disable-next-line consistent-return
+  function mergeDirectKeys(a, b, prop) {
+    if (prop in config2) {
+      return getMergedValue(a, b);
+    } else if (prop in config1) {
+      return getMergedValue(undefined, a);
+    }
+  }
+
+  const mergeMap = {
+    url: valueFromConfig2,
+    method: valueFromConfig2,
+    data: valueFromConfig2,
+    baseURL: defaultToConfig2,
+    transformRequest: defaultToConfig2,
+    transformResponse: defaultToConfig2,
+    paramsSerializer: defaultToConfig2,
+    timeout: defaultToConfig2,
+    timeoutMessage: defaultToConfig2,
+    withCredentials: defaultToConfig2,
+    withXSRFToken: defaultToConfig2,
+    adapter: defaultToConfig2,
+    responseType: defaultToConfig2,
+    xsrfCookieName: defaultToConfig2,
+    xsrfHeaderName: defaultToConfig2,
+    onUploadProgress: defaultToConfig2,
+    onDownloadProgress: defaultToConfig2,
+    decompress: defaultToConfig2,
+    maxContentLength: defaultToConfig2,
+    maxBodyLength: defaultToConfig2,
+    beforeRedirect: defaultToConfig2,
+    transport: defaultToConfig2,
+    httpAgent: defaultToConfig2,
+    httpsAgent: defaultToConfig2,
+    cancelToken: defaultToConfig2,
+    socketPath: defaultToConfig2,
+    responseEncoding: defaultToConfig2,
+    validateStatus: mergeDirectKeys,
+    headers: (a, b , prop) => mergeDeepProperties(headersToObject(a), headersToObject(b),prop, true)
+  };
+
+  utils$1.forEach(Object.keys(Object.assign({}, config1, config2)), function computeConfigValue(prop) {
+    const merge = mergeMap[prop] || mergeDeepProperties;
+    const configValue = merge(config1[prop], config2[prop], prop);
+    (utils$1.isUndefined(configValue) && merge !== mergeDirectKeys) || (config[prop] = configValue);
+  });
+
+  return config;
+}
+
+const resolveConfig = (config) => {
+  const newConfig = mergeConfig({}, config);
+
+  let {data, withXSRFToken, xsrfHeaderName, xsrfCookieName, headers, auth} = newConfig;
+
+  newConfig.headers = headers = AxiosHeaders$1.from(headers);
+
+  newConfig.url = buildURL(buildFullPath(newConfig.baseURL, newConfig.url), config.params, config.paramsSerializer);
+
+  // HTTP basic authentication
+  if (auth) {
+    headers.set('Authorization', 'Basic ' +
+      btoa((auth.username || '') + ':' + (auth.password ? unescape(encodeURIComponent(auth.password)) : ''))
+    );
+  }
+
+  let contentType;
+
+  if (utils$1.isFormData(data)) {
+    if (platform.hasStandardBrowserEnv || platform.hasStandardBrowserWebWorkerEnv) {
+      headers.setContentType(undefined); // Let the browser set it
+    } else if ((contentType = headers.getContentType()) !== false) {
+      // fix semicolon duplication issue for ReactNative FormData implementation
+      const [type, ...tokens] = contentType ? contentType.split(';').map(token => token.trim()).filter(Boolean) : [];
+      headers.setContentType([type || 'multipart/form-data', ...tokens].join('; '));
+    }
+  }
+
+  // Add xsrf header
+  // This is only done if running in a standard browser environment.
+  // Specifically not if we're in a web worker, or react-native.
+
+  if (platform.hasStandardBrowserEnv) {
+    withXSRFToken && utils$1.isFunction(withXSRFToken) && (withXSRFToken = withXSRFToken(newConfig));
+
+    if (withXSRFToken || (withXSRFToken !== false && isURLSameOrigin(newConfig.url))) {
+      // Add xsrf header
+      const xsrfValue = xsrfHeaderName && xsrfCookieName && cookies.read(xsrfCookieName);
+
+      if (xsrfValue) {
+        headers.set(xsrfHeaderName, xsrfValue);
+      }
+    }
+  }
+
+  return newConfig;
+};
+
+const isXHRAdapterSupported = typeof XMLHttpRequest !== 'undefined';
+
+const xhrAdapter = isXHRAdapterSupported && function (config) {
+  return new Promise(function dispatchXhrRequest(resolve, reject) {
+    const _config = resolveConfig(config);
+    let requestData = _config.data;
+    const requestHeaders = AxiosHeaders$1.from(_config.headers).normalize();
+    let {responseType, onUploadProgress, onDownloadProgress} = _config;
+    let onCanceled;
+    let uploadThrottled, downloadThrottled;
+    let flushUpload, flushDownload;
+
+    function done() {
+      flushUpload && flushUpload(); // flush events
+      flushDownload && flushDownload(); // flush events
+
+      _config.cancelToken && _config.cancelToken.unsubscribe(onCanceled);
+
+      _config.signal && _config.signal.removeEventListener('abort', onCanceled);
+    }
+
+    let request = new XMLHttpRequest();
+
+    request.open(_config.method.toUpperCase(), _config.url, true);
+
+    // Set the request timeout in MS
+    request.timeout = _config.timeout;
+
+    function onloadend() {
+      if (!request) {
+        return;
+      }
+      // Prepare the response
+      const responseHeaders = AxiosHeaders$1.from(
+        'getAllResponseHeaders' in request && request.getAllResponseHeaders()
+      );
+      const responseData = !responseType || responseType === 'text' || responseType === 'json' ?
+        request.responseText : request.response;
+      const response = {
+        data: responseData,
+        status: request.status,
+        statusText: request.statusText,
+        headers: responseHeaders,
+        config,
+        request
+      };
+
+      settle(function _resolve(value) {
+        resolve(value);
+        done();
+      }, function _reject(err) {
+        reject(err);
+        done();
+      }, response);
+
+      // Clean up request
+      request = null;
+    }
+
+    if ('onloadend' in request) {
+      // Use onloadend if available
+      request.onloadend = onloadend;
+    } else {
+      // Listen for ready state to emulate onloadend
+      request.onreadystatechange = function handleLoad() {
+        if (!request || request.readyState !== 4) {
+          return;
+        }
+
+        // The request errored out and we didn't get a response, this will be
+        // handled by onerror instead
+        // With one exception: request that using file: protocol, most browsers
+        // will return status as 0 even though it's a successful request
+        if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {
+          return;
+        }
+        // readystate handler is calling before onerror or ontimeout handlers,
+        // so we should call onloadend on the next 'tick'
+        setTimeout(onloadend);
+      };
+    }
+
+    // Handle browser request cancellation (as opposed to a manual cancellation)
+    request.onabort = function handleAbort() {
+      if (!request) {
+        return;
+      }
+
+      reject(new AxiosError('Request aborted', AxiosError.ECONNABORTED, config, request));
+
+      // Clean up request
+      request = null;
+    };
+
+    // Handle low level network errors
+    request.onerror = function handleError() {
+      // Real errors are hidden from us by the browser
+      // onerror should only fire if it's a network error
+      reject(new AxiosError('Network Error', AxiosError.ERR_NETWORK, config, request));
+
+      // Clean up request
+      request = null;
+    };
+
+    // Handle timeout
+    request.ontimeout = function handleTimeout() {
+      let timeoutErrorMessage = _config.timeout ? 'timeout of ' + _config.timeout + 'ms exceeded' : 'timeout exceeded';
+      const transitional = _config.transitional || transitionalDefaults;
+      if (_config.timeoutErrorMessage) {
+        timeoutErrorMessage = _config.timeoutErrorMessage;
+      }
+      reject(new AxiosError(
+        timeoutErrorMessage,
+        transitional.clarifyTimeoutError ? AxiosError.ETIMEDOUT : AxiosError.ECONNABORTED,
+        config,
+        request));
+
+      // Clean up request
+      request = null;
+    };
+
+    // Remove Content-Type if data is undefined
+    requestData === undefined && requestHeaders.setContentType(null);
+
+    // Add headers to the request
+    if ('setRequestHeader' in request) {
+      utils$1.forEach(requestHeaders.toJSON(), function setRequestHeader(val, key) {
+        request.setRequestHeader(key, val);
+      });
+    }
+
+    // Add withCredentials to request if needed
+    if (!utils$1.isUndefined(_config.withCredentials)) {
+      request.withCredentials = !!_config.withCredentials;
+    }
+
+    // Add responseType to request if needed
+    if (responseType && responseType !== 'json') {
+      request.responseType = _config.responseType;
+    }
+
+    // Handle progress if needed
+    if (onDownloadProgress) {
+      ([downloadThrottled, flushDownload] = progressEventReducer(onDownloadProgress, true));
+      request.addEventListener('progress', downloadThrottled);
+    }
+
+    // Not all browsers support upload events
+    if (onUploadProgress && request.upload) {
+      ([uploadThrottled, flushUpload] = progressEventReducer(onUploadProgress));
+
+      request.upload.addEventListener('progress', uploadThrottled);
+
+      request.upload.addEventListener('loadend', flushUpload);
+    }
+
+    if (_config.cancelToken || _config.signal) {
+      // Handle cancellation
+      // eslint-disable-next-line func-names
+      onCanceled = cancel => {
+        if (!request) {
+          return;
+        }
+        reject(!cancel || cancel.type ? new CanceledError(null, config, request) : cancel);
+        request.abort();
+        request = null;
+      };
+
+      _config.cancelToken && _config.cancelToken.subscribe(onCanceled);
+      if (_config.signal) {
+        _config.signal.aborted ? onCanceled() : _config.signal.addEventListener('abort', onCanceled);
+      }
+    }
+
+    const protocol = parseProtocol(_config.url);
+
+    if (protocol && platform.protocols.indexOf(protocol) === -1) {
+      reject(new AxiosError('Unsupported protocol ' + protocol + ':', AxiosError.ERR_BAD_REQUEST, config));
+      return;
+    }
+
+
+    // Send the request
+    request.send(requestData || null);
+  });
+};
+
+const composeSignals = (signals, timeout) => {
+  const {length} = (signals = signals ? signals.filter(Boolean) : []);
+
+  if (timeout || length) {
+    let controller = new AbortController();
+
+    let aborted;
+
+    const onabort = function (reason) {
+      if (!aborted) {
+        aborted = true;
+        unsubscribe();
+        const err = reason instanceof Error ? reason : this.reason;
+        controller.abort(err instanceof AxiosError ? err : new CanceledError(err instanceof Error ? err.message : err));
+      }
+    };
+
+    let timer = timeout && setTimeout(() => {
+      timer = null;
+      onabort(new AxiosError(`timeout ${timeout} of ms exceeded`, AxiosError.ETIMEDOUT));
+    }, timeout);
+
+    const unsubscribe = () => {
+      if (signals) {
+        timer && clearTimeout(timer);
+        timer = null;
+        signals.forEach(signal => {
+          signal.unsubscribe ? signal.unsubscribe(onabort) : signal.removeEventListener('abort', onabort);
+        });
+        signals = null;
+      }
+    };
+
+    signals.forEach((signal) => signal.addEventListener('abort', onabort));
+
+    const {signal} = controller;
+
+    signal.unsubscribe = () => utils$1.asap(unsubscribe);
+
+    return signal;
+  }
+};
+
+const composeSignals$1 = composeSignals;
+
+const streamChunk = function* (chunk, chunkSize) {
+  let len = chunk.byteLength;
+
+  if (!chunkSize || len < chunkSize) {
+    yield chunk;
+    return;
+  }
+
+  let pos = 0;
+  let end;
+
+  while (pos < len) {
+    end = pos + chunkSize;
+    yield chunk.slice(pos, end);
+    pos = end;
+  }
+};
+
+const readBytes = async function* (iterable, chunkSize) {
+  for await (const chunk of readStream(iterable)) {
+    yield* streamChunk(chunk, chunkSize);
+  }
+};
+
+const readStream = async function* (stream) {
+  if (stream[Symbol.asyncIterator]) {
+    yield* stream;
+    return;
+  }
+
+  const reader = stream.getReader();
+  try {
+    for (;;) {
+      const {done, value} = await reader.read();
+      if (done) {
+        break;
+      }
+      yield value;
+    }
+  } finally {
+    await reader.cancel();
+  }
+};
+
+const trackStream = (stream, chunkSize, onProgress, onFinish) => {
+  const iterator = readBytes(stream, chunkSize);
+
+  let bytes = 0;
+  let done;
+  let _onFinish = (e) => {
+    if (!done) {
+      done = true;
+      onFinish && onFinish(e);
+    }
+  };
+
+  return new ReadableStream({
+    async pull(controller) {
+      try {
+        const {done, value} = await iterator.next();
+
+        if (done) {
+         _onFinish();
+          controller.close();
+          return;
+        }
+
+        let len = value.byteLength;
+        if (onProgress) {
+          let loadedBytes = bytes += len;
+          onProgress(loadedBytes);
+        }
+        controller.enqueue(new Uint8Array(value));
+      } catch (err) {
+        _onFinish(err);
+        throw err;
+      }
+    },
+    cancel(reason) {
+      _onFinish(reason);
+      return iterator.return();
+    }
+  }, {
+    highWaterMark: 2
+  })
+};
+
+const isFetchSupported = typeof fetch === 'function' && typeof Request === 'function' && typeof Response === 'function';
+const isReadableStreamSupported = isFetchSupported && typeof ReadableStream === 'function';
+
+// used only inside the fetch adapter
+const encodeText = isFetchSupported && (typeof TextEncoder === 'function' ?
+    ((encoder) => (str) => encoder.encode(str))(new TextEncoder()) :
+    async (str) => new Uint8Array(await new Response(str).arrayBuffer())
+);
+
+const test = (fn, ...args) => {
+  try {
+    return !!fn(...args);
+  } catch (e) {
+    return false
+  }
+};
+
+const supportsRequestStream = isReadableStreamSupported && test(() => {
+  let duplexAccessed = false;
+
+  const hasContentType = new Request(platform.origin, {
+    body: new ReadableStream(),
+    method: 'POST',
+    get duplex() {
+      duplexAccessed = true;
+      return 'half';
+    },
+  }).headers.has('Content-Type');
+
+  return duplexAccessed && !hasContentType;
+});
+
+const DEFAULT_CHUNK_SIZE = 64 * 1024;
+
+const supportsResponseStream = isReadableStreamSupported &&
+  test(() => utils$1.isReadableStream(new Response('').body));
+
+
+const resolvers = {
+  stream: supportsResponseStream && ((res) => res.body)
+};
+
+isFetchSupported && (((res) => {
+  ['text', 'arrayBuffer', 'blob', 'formData', 'stream'].forEach(type => {
+    !resolvers[type] && (resolvers[type] = utils$1.isFunction(res[type]) ? (res) => res[type]() :
+      (_, config) => {
+        throw new AxiosError(`Response type '${type}' is not supported`, AxiosError.ERR_NOT_SUPPORT, config);
+      });
+  });
+})(new Response));
+
+const getBodyLength = async (body) => {
+  if (body == null) {
+    return 0;
+  }
+
+  if(utils$1.isBlob(body)) {
+    return body.size;
+  }
+
+  if(utils$1.isSpecCompliantForm(body)) {
+    const _request = new Request(platform.origin, {
+      method: 'POST',
+      body,
+    });
+    return (await _request.arrayBuffer()).byteLength;
+  }
+
+  if(utils$1.isArrayBufferView(body) || utils$1.isArrayBuffer(body)) {
+    return body.byteLength;
+  }
+
+  if(utils$1.isURLSearchParams(body)) {
+    body = body + '';
+  }
+
+  if(utils$1.isString(body)) {
+    return (await encodeText(body)).byteLength;
+  }
+};
+
+const resolveBodyLength = async (headers, body) => {
+  const length = utils$1.toFiniteNumber(headers.getContentLength());
+
+  return length == null ? getBodyLength(body) : length;
+};
+
+const fetchAdapter = isFetchSupported && (async (config) => {
+  let {
+    url,
+    method,
+    data,
+    signal,
+    cancelToken,
+    timeout,
+    onDownloadProgress,
+    onUploadProgress,
+    responseType,
+    headers,
+    withCredentials = 'same-origin',
+    fetchOptions
+  } = resolveConfig(config);
+
+  responseType = responseType ? (responseType + '').toLowerCase() : 'text';
+
+  let composedSignal = composeSignals$1([signal, cancelToken && cancelToken.toAbortSignal()], timeout);
+
+  let request;
+
+  const unsubscribe = composedSignal && composedSignal.unsubscribe && (() => {
+      composedSignal.unsubscribe();
+  });
+
+  let requestContentLength;
+
+  try {
+    if (
+      onUploadProgress && supportsRequestStream && method !== 'get' && method !== 'head' &&
+      (requestContentLength = await resolveBodyLength(headers, data)) !== 0
+    ) {
+      let _request = new Request(url, {
+        method: 'POST',
+        body: data,
+        duplex: "half"
+      });
+
+      let contentTypeHeader;
+
+      if (utils$1.isFormData(data) && (contentTypeHeader = _request.headers.get('content-type'))) {
+        headers.setContentType(contentTypeHeader);
+      }
+
+      if (_request.body) {
+        const [onProgress, flush] = progressEventDecorator(
+          requestContentLength,
+          progressEventReducer(asyncDecorator(onUploadProgress))
+        );
+
+        data = trackStream(_request.body, DEFAULT_CHUNK_SIZE, onProgress, flush);
+      }
+    }
+
+    if (!utils$1.isString(withCredentials)) {
+      withCredentials = withCredentials ? 'include' : 'omit';
+    }
+
+    // Cloudflare Workers throws when credentials are defined
+    // see https://github.com/cloudflare/workerd/issues/902
+    const isCredentialsSupported = "credentials" in Request.prototype;
+    request = new Request(url, {
+      ...fetchOptions,
+      signal: composedSignal,
+      method: method.toUpperCase(),
+      headers: headers.normalize().toJSON(),
+      body: data,
+      duplex: "half",
+      credentials: isCredentialsSupported ? withCredentials : undefined
+    });
+
+    let response = await fetch(request);
+
+    const isStreamResponse = supportsResponseStream && (responseType === 'stream' || responseType === 'response');
+
+    if (supportsResponseStream && (onDownloadProgress || (isStreamResponse && unsubscribe))) {
+      const options = {};
+
+      ['status', 'statusText', 'headers'].forEach(prop => {
+        options[prop] = response[prop];
+      });
+
+      const responseContentLength = utils$1.toFiniteNumber(response.headers.get('content-length'));
+
+      const [onProgress, flush] = onDownloadProgress && progressEventDecorator(
+        responseContentLength,
+        progressEventReducer(asyncDecorator(onDownloadProgress), true)
+      ) || [];
+
+      response = new Response(
+        trackStream(response.body, DEFAULT_CHUNK_SIZE, onProgress, () => {
+          flush && flush();
+          unsubscribe && unsubscribe();
+        }),
+        options
+      );
+    }
+
+    responseType = responseType || 'text';
+
+    let responseData = await resolvers[utils$1.findKey(resolvers, responseType) || 'text'](response, config);
+
+    !isStreamResponse && unsubscribe && unsubscribe();
+
+    return await new Promise((resolve, reject) => {
+      settle(resolve, reject, {
+        data: responseData,
+        headers: AxiosHeaders$1.from(response.headers),
+        status: response.status,
+        statusText: response.statusText,
+        config,
+        request
+      });
+    })
+  } catch (err) {
+    unsubscribe && unsubscribe();
+
+    if (err && err.name === 'TypeError' && /fetch/i.test(err.message)) {
+      throw Object.assign(
+        new AxiosError('Network Error', AxiosError.ERR_NETWORK, config, request),
+        {
+          cause: err.cause || err
+        }
+      )
+    }
+
+    throw AxiosError.from(err, err && err.code, config, request);
+  }
+});
+
+const knownAdapters = {
+  http: httpAdapter,
+  xhr: xhrAdapter,
+  fetch: fetchAdapter
+};
+
+utils$1.forEach(knownAdapters, (fn, value) => {
+  if (fn) {
+    try {
+      Object.defineProperty(fn, 'name', {value});
+    } catch (e) {
+      // eslint-disable-next-line no-empty
+    }
+    Object.defineProperty(fn, 'adapterName', {value});
+  }
+});
+
+const renderReason = (reason) => `- ${reason}`;
+
+const isResolvedHandle = (adapter) => utils$1.isFunction(adapter) || adapter === null || adapter === false;
+
+const adapters = {
+  getAdapter: (adapters) => {
+    adapters = utils$1.isArray(adapters) ? adapters : [adapters];
+
+    const {length} = adapters;
+    let nameOrAdapter;
+    let adapter;
+
+    const rejectedReasons = {};
+
+    for (let i = 0; i < length; i++) {
+      nameOrAdapter = adapters[i];
+      let id;
+
+      adapter = nameOrAdapter;
+
+      if (!isResolvedHandle(nameOrAdapter)) {
+        adapter = knownAdapters[(id = String(nameOrAdapter)).toLowerCase()];
+
+        if (adapter === undefined) {
+          throw new AxiosError(`Unknown adapter '${id}'`);
+        }
+      }
+
+      if (adapter) {
+        break;
+      }
+
+      rejectedReasons[id || '#' + i] = adapter;
+    }
+
+    if (!adapter) {
+
+      const reasons = Object.entries(rejectedReasons)
+        .map(([id, state]) => `adapter ${id} ` +
+          (state === false ? 'is not supported by the environment' : 'is not available in the build')
+        );
+
+      let s = length ?
+        (reasons.length > 1 ? 'since :\n' + reasons.map(renderReason).join('\n') : ' ' + renderReason(reasons[0])) :
+        'as no adapter specified';
+
+      throw new AxiosError(
+        `There is no suitable adapter to dispatch the request ` + s,
+        'ERR_NOT_SUPPORT'
+      );
+    }
+
+    return adapter;
+  },
+  adapters: knownAdapters
+};
+
+/**
+ * Throws a `CanceledError` if cancellation has been requested.
+ *
+ * @param {Object} config The config that is to be used for the request
+ *
+ * @returns {void}
+ */
+function throwIfCancellationRequested(config) {
+  if (config.cancelToken) {
+    config.cancelToken.throwIfRequested();
+  }
+
+  if (config.signal && config.signal.aborted) {
+    throw new CanceledError(null, config);
+  }
+}
+
+/**
+ * Dispatch a request to the server using the configured adapter.
+ *
+ * @param {object} config The config that is to be used for the request
+ *
+ * @returns {Promise} The Promise to be fulfilled
+ */
+function dispatchRequest(config) {
+  throwIfCancellationRequested(config);
+
+  config.headers = AxiosHeaders$1.from(config.headers);
+
+  // Transform request data
+  config.data = transformData.call(
+    config,
+    config.transformRequest
+  );
+
+  if (['post', 'put', 'patch'].indexOf(config.method) !== -1) {
+    config.headers.setContentType('application/x-www-form-urlencoded', false);
+  }
+
+  const adapter = adapters.getAdapter(config.adapter || defaults$1.adapter);
+
+  return adapter(config).then(function onAdapterResolution(response) {
+    throwIfCancellationRequested(config);
+
+    // Transform response data
+    response.data = transformData.call(
+      config,
+      config.transformResponse,
+      response
+    );
+
+    response.headers = AxiosHeaders$1.from(response.headers);
+
+    return response;
+  }, function onAdapterRejection(reason) {
+    if (!isCancel(reason)) {
+      throwIfCancellationRequested(config);
+
+      // Transform response data
+      if (reason && reason.response) {
+        reason.response.data = transformData.call(
+          config,
+          config.transformResponse,
+          reason.response
+        );
+        reason.response.headers = AxiosHeaders$1.from(reason.response.headers);
+      }
+    }
+
+    return Promise.reject(reason);
+  });
+}
+
+const validators$1 = {};
+
+// eslint-disable-next-line func-names
+['object', 'boolean', 'number', 'function', 'string', 'symbol'].forEach((type, i) => {
+  validators$1[type] = function validator(thing) {
+    return typeof thing === type || 'a' + (i < 1 ? 'n ' : ' ') + type;
+  };
+});
+
+const deprecatedWarnings = {};
+
+/**
+ * Transitional option validator
+ *
+ * @param {function|boolean?} validator - set to false if the transitional option has been removed
+ * @param {string?} version - deprecated version / removed since version
+ * @param {string?} message - some message with additional info
+ *
+ * @returns {function}
+ */
+validators$1.transitional = function transitional(validator, version, message) {
+  function formatMessage(opt, desc) {
+    return '[Axios v' + VERSION + '] Transitional option \'' + opt + '\'' + desc + (message ? '. ' + message : '');
+  }
+
+  // eslint-disable-next-line func-names
+  return (value, opt, opts) => {
+    if (validator === false) {
+      throw new AxiosError(
+        formatMessage(opt, ' has been removed' + (version ? ' in ' + version : '')),
+        AxiosError.ERR_DEPRECATED
+      );
+    }
+
+    if (version && !deprecatedWarnings[opt]) {
+      deprecatedWarnings[opt] = true;
+      // eslint-disable-next-line no-console
+      console.warn(
+        formatMessage(
+          opt,
+          ' has been deprecated since v' + version + ' and will be removed in the near future'
+        )
+      );
+    }
+
+    return validator ? validator(value, opt, opts) : true;
+  };
+};
+
+validators$1.spelling = function spelling(correctSpelling) {
+  return (value, opt) => {
+    // eslint-disable-next-line no-console
+    console.warn(`${opt} is likely a misspelling of ${correctSpelling}`);
+    return true;
+  }
+};
+
+/**
+ * Assert object's properties type
+ *
+ * @param {object} options
+ * @param {object} schema
+ * @param {boolean?} allowUnknown
+ *
+ * @returns {object}
+ */
+
+function assertOptions(options, schema, allowUnknown) {
+  if (typeof options !== 'object') {
+    throw new AxiosError('options must be an object', AxiosError.ERR_BAD_OPTION_VALUE);
+  }
+  const keys = Object.keys(options);
+  let i = keys.length;
+  while (i-- > 0) {
+    const opt = keys[i];
+    const validator = schema[opt];
+    if (validator) {
+      const value = options[opt];
+      const result = value === undefined || validator(value, opt, options);
+      if (result !== true) {
+        throw new AxiosError('option ' + opt + ' must be ' + result, AxiosError.ERR_BAD_OPTION_VALUE);
+      }
+      continue;
+    }
+    if (allowUnknown !== true) {
+      throw new AxiosError('Unknown option ' + opt, AxiosError.ERR_BAD_OPTION);
+    }
+  }
+}
+
+const validator = {
+  assertOptions,
+  validators: validators$1
+};
+
+const validators = validator.validators;
+
+/**
+ * Create a new instance of Axios
+ *
+ * @param {Object} instanceConfig The default config for the instance
+ *
+ * @return {Axios} A new instance of Axios
+ */
+class Axios {
+  constructor(instanceConfig) {
+    this.defaults = instanceConfig;
+    this.interceptors = {
+      request: new InterceptorManager$1(),
+      response: new InterceptorManager$1()
+    };
+  }
+
+  /**
+   * Dispatch a request
+   *
+   * @param {String|Object} configOrUrl The config specific for this request (merged with this.defaults)
+   * @param {?Object} config
+   *
+   * @returns {Promise} The Promise to be fulfilled
+   */
+  async request(configOrUrl, config) {
+    try {
+      return await this._request(configOrUrl, config);
+    } catch (err) {
+      if (err instanceof Error) {
+        let dummy = {};
+
+        Error.captureStackTrace ? Error.captureStackTrace(dummy) : (dummy = new Error());
+
+        // slice off the Error: ... line
+        const stack = dummy.stack ? dummy.stack.replace(/^.+\n/, '') : '';
+        try {
+          if (!err.stack) {
+            err.stack = stack;
+            // match without the 2 top stack lines
+          } else if (stack && !String(err.stack).endsWith(stack.replace(/^.+\n.+\n/, ''))) {
+            err.stack += '\n' + stack;
+          }
+        } catch (e) {
+          // ignore the case where "stack" is an un-writable property
+        }
+      }
+
+      throw err;
+    }
+  }
+
+  _request(configOrUrl, config) {
+    /*eslint no-param-reassign:0*/
+    // Allow for axios('example/url'[, config]) a la fetch API
+    if (typeof configOrUrl === 'string') {
+      config = config || {};
+      config.url = configOrUrl;
+    } else {
+      config = configOrUrl || {};
+    }
+
+    config = mergeConfig(this.defaults, config);
+
+    const {transitional, paramsSerializer, headers} = config;
+
+    if (transitional !== undefined) {
+      validator.assertOptions(transitional, {
+        silentJSONParsing: validators.transitional(validators.boolean),
+        forcedJSONParsing: validators.transitional(validators.boolean),
+        clarifyTimeoutError: validators.transitional(validators.boolean)
+      }, false);
+    }
+
+    if (paramsSerializer != null) {
+      if (utils$1.isFunction(paramsSerializer)) {
+        config.paramsSerializer = {
+          serialize: paramsSerializer
+        };
+      } else {
+        validator.assertOptions(paramsSerializer, {
+          encode: validators.function,
+          serialize: validators.function
+        }, true);
+      }
+    }
+
+    validator.assertOptions(config, {
+      baseUrl: validators.spelling('baseURL'),
+      withXsrfToken: validators.spelling('withXSRFToken')
+    }, true);
+
+    // Set config.method
+    config.method = (config.method || this.defaults.method || 'get').toLowerCase();
+
+    // Flatten headers
+    let contextHeaders = headers && utils$1.merge(
+      headers.common,
+      headers[config.method]
+    );
+
+    headers && utils$1.forEach(
+      ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],
+      (method) => {
+        delete headers[method];
+      }
+    );
+
+    config.headers = AxiosHeaders$1.concat(contextHeaders, headers);
+
+    // filter out skipped interceptors
+    const requestInterceptorChain = [];
+    let synchronousRequestInterceptors = true;
+    this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {
+      if (typeof interceptor.runWhen === 'function' && interceptor.runWhen(config) === false) {
+        return;
+      }
+
+      synchronousRequestInterceptors = synchronousRequestInterceptors && interceptor.synchronous;
+
+      requestInterceptorChain.unshift(interceptor.fulfilled, interceptor.rejected);
+    });
+
+    const responseInterceptorChain = [];
+    this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {
+      responseInterceptorChain.push(interceptor.fulfilled, interceptor.rejected);
+    });
+
+    let promise;
+    let i = 0;
+    let len;
+
+    if (!synchronousRequestInterceptors) {
+      const chain = [dispatchRequest.bind(this), undefined];
+      chain.unshift.apply(chain, requestInterceptorChain);
+      chain.push.apply(chain, responseInterceptorChain);
+      len = chain.length;
+
+      promise = Promise.resolve(config);
+
+      while (i < len) {
+        promise = promise.then(chain[i++], chain[i++]);
+      }
+
+      return promise;
+    }
+
+    len = requestInterceptorChain.length;
+
+    let newConfig = config;
+
+    i = 0;
+
+    while (i < len) {
+      const onFulfilled = requestInterceptorChain[i++];
+      const onRejected = requestInterceptorChain[i++];
+      try {
+        newConfig = onFulfilled(newConfig);
+      } catch (error) {
+        onRejected.call(this, error);
+        break;
+      }
+    }
+
+    try {
+      promise = dispatchRequest.call(this, newConfig);
+    } catch (error) {
+      return Promise.reject(error);
+    }
+
+    i = 0;
+    len = responseInterceptorChain.length;
+
+    while (i < len) {
+      promise = promise.then(responseInterceptorChain[i++], responseInterceptorChain[i++]);
+    }
+
+    return promise;
+  }
+
+  getUri(config) {
+    config = mergeConfig(this.defaults, config);
+    const fullPath = buildFullPath(config.baseURL, config.url);
+    return buildURL(fullPath, config.params, config.paramsSerializer);
+  }
+}
+
+// Provide aliases for supported request methods
+utils$1.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {
+  /*eslint func-names:0*/
+  Axios.prototype[method] = function(url, config) {
+    return this.request(mergeConfig(config || {}, {
+      method,
+      url,
+      data: (config || {}).data
+    }));
+  };
+});
+
+utils$1.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
+  /*eslint func-names:0*/
+
+  function generateHTTPMethod(isForm) {
+    return function httpMethod(url, data, config) {
+      return this.request(mergeConfig(config || {}, {
+        method,
+        headers: isForm ? {
+          'Content-Type': 'multipart/form-data'
+        } : {},
+        url,
+        data
+      }));
+    };
+  }
+
+  Axios.prototype[method] = generateHTTPMethod();
+
+  Axios.prototype[method + 'Form'] = generateHTTPMethod(true);
+});
+
+const Axios$1 = Axios;
+
+/**
+ * A `CancelToken` is an object that can be used to request cancellation of an operation.
+ *
+ * @param {Function} executor The executor function.
+ *
+ * @returns {CancelToken}
+ */
+class CancelToken {
+  constructor(executor) {
+    if (typeof executor !== 'function') {
+      throw new TypeError('executor must be a function.');
+    }
+
+    let resolvePromise;
+
+    this.promise = new Promise(function promiseExecutor(resolve) {
+      resolvePromise = resolve;
+    });
+
+    const token = this;
+
+    // eslint-disable-next-line func-names
+    this.promise.then(cancel => {
+      if (!token._listeners) return;
+
+      let i = token._listeners.length;
+
+      while (i-- > 0) {
+        token._listeners[i](cancel);
+      }
+      token._listeners = null;
+    });
+
+    // eslint-disable-next-line func-names
+    this.promise.then = onfulfilled => {
+      let _resolve;
+      // eslint-disable-next-line func-names
+      const promise = new Promise(resolve => {
+        token.subscribe(resolve);
+        _resolve = resolve;
+      }).then(onfulfilled);
+
+      promise.cancel = function reject() {
+        token.unsubscribe(_resolve);
+      };
+
+      return promise;
+    };
+
+    executor(function cancel(message, config, request) {
+      if (token.reason) {
+        // Cancellation has already been requested
+        return;
+      }
+
+      token.reason = new CanceledError(message, config, request);
+      resolvePromise(token.reason);
+    });
+  }
+
+  /**
+   * Throws a `CanceledError` if cancellation has been requested.
+   */
+  throwIfRequested() {
+    if (this.reason) {
+      throw this.reason;
+    }
+  }
+
+  /**
+   * Subscribe to the cancel signal
+   */
+
+  subscribe(listener) {
+    if (this.reason) {
+      listener(this.reason);
+      return;
+    }
+
+    if (this._listeners) {
+      this._listeners.push(listener);
+    } else {
+      this._listeners = [listener];
+    }
+  }
+
+  /**
+   * Unsubscribe from the cancel signal
+   */
+
+  unsubscribe(listener) {
+    if (!this._listeners) {
+      return;
+    }
+    const index = this._listeners.indexOf(listener);
+    if (index !== -1) {
+      this._listeners.splice(index, 1);
+    }
+  }
+
+  toAbortSignal() {
+    const controller = new AbortController();
+
+    const abort = (err) => {
+      controller.abort(err);
+    };
+
+    this.subscribe(abort);
+
+    controller.signal.unsubscribe = () => this.unsubscribe(abort);
+
+    return controller.signal;
+  }
+
+  /**
+   * Returns an object that contains a new `CancelToken` and a function that, when called,
+   * cancels the `CancelToken`.
+   */
+  static source() {
+    let cancel;
+    const token = new CancelToken(function executor(c) {
+      cancel = c;
+    });
+    return {
+      token,
+      cancel
+    };
+  }
+}
+
+const CancelToken$1 = CancelToken;
+
+/**
+ * Syntactic sugar for invoking a function and expanding an array for arguments.
+ *
+ * Common use case would be to use `Function.prototype.apply`.
+ *
+ *  ```js
+ *  function f(x, y, z) {}
+ *  var args = [1, 2, 3];
+ *  f.apply(null, args);
+ *  ```
+ *
+ * With `spread` this example can be re-written.
+ *
+ *  ```js
+ *  spread(function(x, y, z) {})([1, 2, 3]);
+ *  ```
+ *
+ * @param {Function} callback
+ *
+ * @returns {Function}
+ */
+function spread(callback) {
+  return function wrap(arr) {
+    return callback.apply(null, arr);
+  };
+}
+
+/**
+ * Determines whether the payload is an error thrown by Axios
+ *
+ * @param {*} payload The value to test
+ *
+ * @returns {boolean} True if the payload is an error thrown by Axios, otherwise false
+ */
+function isAxiosError(payload) {
+  return utils$1.isObject(payload) && (payload.isAxiosError === true);
+}
+
+const HttpStatusCode = {
+  Continue: 100,
+  SwitchingProtocols: 101,
+  Processing: 102,
+  EarlyHints: 103,
+  Ok: 200,
+  Created: 201,
+  Accepted: 202,
+  NonAuthoritativeInformation: 203,
+  NoContent: 204,
+  ResetContent: 205,
+  PartialContent: 206,
+  MultiStatus: 207,
+  AlreadyReported: 208,
+  ImUsed: 226,
+  MultipleChoices: 300,
+  MovedPermanently: 301,
+  Found: 302,
+  SeeOther: 303,
+  NotModified: 304,
+  UseProxy: 305,
+  Unused: 306,
+  TemporaryRedirect: 307,
+  PermanentRedirect: 308,
+  BadRequest: 400,
+  Unauthorized: 401,
+  PaymentRequired: 402,
+  Forbidden: 403,
+  NotFound: 404,
+  MethodNotAllowed: 405,
+  NotAcceptable: 406,
+  ProxyAuthenticationRequired: 407,
+  RequestTimeout: 408,
+  Conflict: 409,
+  Gone: 410,
+  LengthRequired: 411,
+  PreconditionFailed: 412,
+  PayloadTooLarge: 413,
+  UriTooLong: 414,
+  UnsupportedMediaType: 415,
+  RangeNotSatisfiable: 416,
+  ExpectationFailed: 417,
+  ImATeapot: 418,
+  MisdirectedRequest: 421,
+  UnprocessableEntity: 422,
+  Locked: 423,
+  FailedDependency: 424,
+  TooEarly: 425,
+  UpgradeRequired: 426,
+  PreconditionRequired: 428,
+  TooManyRequests: 429,
+  RequestHeaderFieldsTooLarge: 431,
+  UnavailableForLegalReasons: 451,
+  InternalServerError: 500,
+  NotImplemented: 501,
+  BadGateway: 502,
+  ServiceUnavailable: 503,
+  GatewayTimeout: 504,
+  HttpVersionNotSupported: 505,
+  VariantAlsoNegotiates: 506,
+  InsufficientStorage: 507,
+  LoopDetected: 508,
+  NotExtended: 510,
+  NetworkAuthenticationRequired: 511,
+};
+
+Object.entries(HttpStatusCode).forEach(([key, value]) => {
+  HttpStatusCode[value] = key;
+});
+
+const HttpStatusCode$1 = HttpStatusCode;
+
+/**
+ * Create an instance of Axios
+ *
+ * @param {Object} defaultConfig The default config for the instance
+ *
+ * @returns {Axios} A new instance of Axios
+ */
+function createInstance(defaultConfig) {
+  const context = new Axios$1(defaultConfig);
+  const instance = bind(Axios$1.prototype.request, context);
+
+  // Copy axios.prototype to instance
+  utils$1.extend(instance, Axios$1.prototype, context, {allOwnKeys: true});
+
+  // Copy context to instance
+  utils$1.extend(instance, context, null, {allOwnKeys: true});
+
+  // Factory for creating new instances
+  instance.create = function create(instanceConfig) {
+    return createInstance(mergeConfig(defaultConfig, instanceConfig));
+  };
+
+  return instance;
+}
+
+// Create the default instance to be exported
+const axios = createInstance(defaults$1);
+
+// Expose Axios class to allow class inheritance
+axios.Axios = Axios$1;
+
+// Expose Cancel & CancelToken
+axios.CanceledError = CanceledError;
+axios.CancelToken = CancelToken$1;
+axios.isCancel = isCancel;
+axios.VERSION = VERSION;
+axios.toFormData = toFormData;
+
+// Expose AxiosError class
+axios.AxiosError = AxiosError;
+
+// alias for CanceledError for backward compatibility
+axios.Cancel = axios.CanceledError;
+
+// Expose all/spread
+axios.all = function all(promises) {
+  return Promise.all(promises);
+};
+
+axios.spread = spread;
+
+// Expose isAxiosError
+axios.isAxiosError = isAxiosError;
+
+// Expose mergeConfig
+axios.mergeConfig = mergeConfig;
+
+axios.AxiosHeaders = AxiosHeaders$1;
+
+axios.formToJSON = thing => formDataToJSON(utils$1.isHTMLForm(thing) ? new FormData(thing) : thing);
+
+axios.getAdapter = adapters.getAdapter;
+
+axios.HttpStatusCode = HttpStatusCode$1;
+
+axios.default = axios;
+
+module.exports = axios;
+//# sourceMappingURL=axios.cjs.map
diff --git a/backend/node_modules/axios/dist/node/axios.cjs.map b/backend/node_modules/axios/dist/node/axios.cjs.map
new file mode 100644
index 0000000..0abce24
--- /dev/null
+++ b/backend/node_modules/axios/dist/node/axios.cjs.map
@@ -0,0 +1 @@
+{"version":3,"file":"axios.cjs","sources":["../../lib/helpers/bind.js","../../lib/utils.js","../../lib/core/AxiosError.js","../../lib/helpers/toFormData.js","../../lib/helpers/AxiosURLSearchParams.js","../../lib/helpers/buildURL.js","../../lib/core/InterceptorManager.js","../../lib/defaults/transitional.js","../../lib/platform/node/classes/URLSearchParams.js","../../lib/platform/node/index.js","../../lib/platform/common/utils.js","../../lib/platform/index.js","../../lib/helpers/toURLEncodedForm.js","../../lib/helpers/formDataToJSON.js","../../lib/defaults/index.js","../../lib/helpers/parseHeaders.js","../../lib/core/AxiosHeaders.js","../../lib/core/transformData.js","../../lib/cancel/isCancel.js","../../lib/cancel/CanceledError.js","../../lib/core/settle.js","../../lib/helpers/isAbsoluteURL.js","../../lib/helpers/combineURLs.js","../../lib/core/buildFullPath.js","../../lib/env/data.js","../../lib/helpers/parseProtocol.js","../../lib/helpers/fromDataURI.js","../../lib/helpers/AxiosTransformStream.js","../../lib/helpers/readBlob.js","../../lib/helpers/formDataToStream.js","../../lib/helpers/ZlibHeaderTransformStream.js","../../lib/helpers/callbackify.js","../../lib/helpers/speedometer.js","../../lib/helpers/throttle.js","../../lib/helpers/progressEventReducer.js","../../lib/adapters/http.js","../../lib/helpers/isURLSameOrigin.js","../../lib/helpers/cookies.js","../../lib/core/mergeConfig.js","../../lib/helpers/resolveConfig.js","../../lib/adapters/xhr.js","../../lib/helpers/composeSignals.js","../../lib/helpers/trackStream.js","../../lib/adapters/fetch.js","../../lib/adapters/adapters.js","../../lib/core/dispatchRequest.js","../../lib/helpers/validator.js","../../lib/core/Axios.js","../../lib/cancel/CancelToken.js","../../lib/helpers/spread.js","../../lib/helpers/isAxiosError.js","../../lib/helpers/HttpStatusCode.js","../../lib/axios.js"],"sourcesContent":["'use strict';\n\nexport default function bind(fn, thisArg) {\n  return function wrap() {\n    return fn.apply(thisArg, arguments);\n  };\n}\n","'use strict';\n\nimport bind from './helpers/bind.js';\n\n// utils is a library of generic helper functions non-specific to axios\n\nconst {toString} = Object.prototype;\nconst {getPrototypeOf} = Object;\n\nconst kindOf = (cache => thing => {\n    const str = toString.call(thing);\n    return cache[str] || (cache[str] = str.slice(8, -1).toLowerCase());\n})(Object.create(null));\n\nconst kindOfTest = (type) => {\n  type = type.toLowerCase();\n  return (thing) => kindOf(thing) === type\n}\n\nconst typeOfTest = type => thing => typeof thing === type;\n\n/**\n * Determine if a value is an Array\n *\n * @param {Object} val The value to test\n *\n * @returns {boolean} True if value is an Array, otherwise false\n */\nconst {isArray} = Array;\n\n/**\n * Determine if a value is undefined\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if the value is undefined, otherwise false\n */\nconst isUndefined = typeOfTest('undefined');\n\n/**\n * Determine if a value is a Buffer\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Buffer, otherwise false\n */\nfunction isBuffer(val) {\n  return val !== null && !isUndefined(val) && val.constructor !== null && !isUndefined(val.constructor)\n    && isFunction(val.constructor.isBuffer) && val.constructor.isBuffer(val);\n}\n\n/**\n * Determine if a value is an ArrayBuffer\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is an ArrayBuffer, otherwise false\n */\nconst isArrayBuffer = kindOfTest('ArrayBuffer');\n\n\n/**\n * Determine if a value is a view on an ArrayBuffer\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false\n */\nfunction isArrayBufferView(val) {\n  let result;\n  if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) {\n    result = ArrayBuffer.isView(val);\n  } else {\n    result = (val) && (val.buffer) && (isArrayBuffer(val.buffer));\n  }\n  return result;\n}\n\n/**\n * Determine if a value is a String\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a String, otherwise false\n */\nconst isString = typeOfTest('string');\n\n/**\n * Determine if a value is a Function\n *\n * @param {*} val The value to test\n * @returns {boolean} True if value is a Function, otherwise false\n */\nconst isFunction = typeOfTest('function');\n\n/**\n * Determine if a value is a Number\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Number, otherwise false\n */\nconst isNumber = typeOfTest('number');\n\n/**\n * Determine if a value is an Object\n *\n * @param {*} thing The value to test\n *\n * @returns {boolean} True if value is an Object, otherwise false\n */\nconst isObject = (thing) => thing !== null && typeof thing === 'object';\n\n/**\n * Determine if a value is a Boolean\n *\n * @param {*} thing The value to test\n * @returns {boolean} True if value is a Boolean, otherwise false\n */\nconst isBoolean = thing => thing === true || thing === false;\n\n/**\n * Determine if a value is a plain Object\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a plain Object, otherwise false\n */\nconst isPlainObject = (val) => {\n  if (kindOf(val) !== 'object') {\n    return false;\n  }\n\n  const prototype = getPrototypeOf(val);\n  return (prototype === null || prototype === Object.prototype || Object.getPrototypeOf(prototype) === null) && !(Symbol.toStringTag in val) && !(Symbol.iterator in val);\n}\n\n/**\n * Determine if a value is a Date\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Date, otherwise false\n */\nconst isDate = kindOfTest('Date');\n\n/**\n * Determine if a value is a File\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a File, otherwise false\n */\nconst isFile = kindOfTest('File');\n\n/**\n * Determine if a value is a Blob\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Blob, otherwise false\n */\nconst isBlob = kindOfTest('Blob');\n\n/**\n * Determine if a value is a FileList\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a File, otherwise false\n */\nconst isFileList = kindOfTest('FileList');\n\n/**\n * Determine if a value is a Stream\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a Stream, otherwise false\n */\nconst isStream = (val) => isObject(val) && isFunction(val.pipe);\n\n/**\n * Determine if a value is a FormData\n *\n * @param {*} thing The value to test\n *\n * @returns {boolean} True if value is an FormData, otherwise false\n */\nconst isFormData = (thing) => {\n  let kind;\n  return thing && (\n    (typeof FormData === 'function' && thing instanceof FormData) || (\n      isFunction(thing.append) && (\n        (kind = kindOf(thing)) === 'formdata' ||\n        // detect form-data instance\n        (kind === 'object' && isFunction(thing.toString) && thing.toString() === '[object FormData]')\n      )\n    )\n  )\n}\n\n/**\n * Determine if a value is a URLSearchParams object\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a URLSearchParams object, otherwise false\n */\nconst isURLSearchParams = kindOfTest('URLSearchParams');\n\nconst [isReadableStream, isRequest, isResponse, isHeaders] = ['ReadableStream', 'Request', 'Response', 'Headers'].map(kindOfTest);\n\n/**\n * Trim excess whitespace off the beginning and end of a string\n *\n * @param {String} str The String to trim\n *\n * @returns {String} The String freed of excess whitespace\n */\nconst trim = (str) => str.trim ?\n  str.trim() : str.replace(/^[\\s\\uFEFF\\xA0]+|[\\s\\uFEFF\\xA0]+$/g, '');\n\n/**\n * Iterate over an Array or an Object invoking a function for each item.\n *\n * If `obj` is an Array callback will be called passing\n * the value, index, and complete array for each item.\n *\n * If 'obj' is an Object callback will be called passing\n * the value, key, and complete object for each property.\n *\n * @param {Object|Array} obj The object to iterate\n * @param {Function} fn The callback to invoke for each item\n *\n * @param {Boolean} [allOwnKeys = false]\n * @returns {any}\n */\nfunction forEach(obj, fn, {allOwnKeys = false} = {}) {\n  // Don't bother if no value provided\n  if (obj === null || typeof obj === 'undefined') {\n    return;\n  }\n\n  let i;\n  let l;\n\n  // Force an array if not already something iterable\n  if (typeof obj !== 'object') {\n    /*eslint no-param-reassign:0*/\n    obj = [obj];\n  }\n\n  if (isArray(obj)) {\n    // Iterate over array values\n    for (i = 0, l = obj.length; i < l; i++) {\n      fn.call(null, obj[i], i, obj);\n    }\n  } else {\n    // Iterate over object keys\n    const keys = allOwnKeys ? Object.getOwnPropertyNames(obj) : Object.keys(obj);\n    const len = keys.length;\n    let key;\n\n    for (i = 0; i < len; i++) {\n      key = keys[i];\n      fn.call(null, obj[key], key, obj);\n    }\n  }\n}\n\nfunction findKey(obj, key) {\n  key = key.toLowerCase();\n  const keys = Object.keys(obj);\n  let i = keys.length;\n  let _key;\n  while (i-- > 0) {\n    _key = keys[i];\n    if (key === _key.toLowerCase()) {\n      return _key;\n    }\n  }\n  return null;\n}\n\nconst _global = (() => {\n  /*eslint no-undef:0*/\n  if (typeof globalThis !== \"undefined\") return globalThis;\n  return typeof self !== \"undefined\" ? self : (typeof window !== 'undefined' ? window : global)\n})();\n\nconst isContextDefined = (context) => !isUndefined(context) && context !== _global;\n\n/**\n * Accepts varargs expecting each argument to be an object, then\n * immutably merges the properties of each object and returns result.\n *\n * When multiple objects contain the same key the later object in\n * the arguments list will take precedence.\n *\n * Example:\n *\n * ```js\n * var result = merge({foo: 123}, {foo: 456});\n * console.log(result.foo); // outputs 456\n * ```\n *\n * @param {Object} obj1 Object to merge\n *\n * @returns {Object} Result of all merge properties\n */\nfunction merge(/* obj1, obj2, obj3, ... */) {\n  const {caseless} = isContextDefined(this) && this || {};\n  const result = {};\n  const assignValue = (val, key) => {\n    const targetKey = caseless && findKey(result, key) || key;\n    if (isPlainObject(result[targetKey]) && isPlainObject(val)) {\n      result[targetKey] = merge(result[targetKey], val);\n    } else if (isPlainObject(val)) {\n      result[targetKey] = merge({}, val);\n    } else if (isArray(val)) {\n      result[targetKey] = val.slice();\n    } else {\n      result[targetKey] = val;\n    }\n  }\n\n  for (let i = 0, l = arguments.length; i < l; i++) {\n    arguments[i] && forEach(arguments[i], assignValue);\n  }\n  return result;\n}\n\n/**\n * Extends object a by mutably adding to it the properties of object b.\n *\n * @param {Object} a The object to be extended\n * @param {Object} b The object to copy properties from\n * @param {Object} thisArg The object to bind function to\n *\n * @param {Boolean} [allOwnKeys]\n * @returns {Object} The resulting value of object a\n */\nconst extend = (a, b, thisArg, {allOwnKeys}= {}) => {\n  forEach(b, (val, key) => {\n    if (thisArg && isFunction(val)) {\n      a[key] = bind(val, thisArg);\n    } else {\n      a[key] = val;\n    }\n  }, {allOwnKeys});\n  return a;\n}\n\n/**\n * Remove byte order marker. This catches EF BB BF (the UTF-8 BOM)\n *\n * @param {string} content with BOM\n *\n * @returns {string} content value without BOM\n */\nconst stripBOM = (content) => {\n  if (content.charCodeAt(0) === 0xFEFF) {\n    content = content.slice(1);\n  }\n  return content;\n}\n\n/**\n * Inherit the prototype methods from one constructor into another\n * @param {function} constructor\n * @param {function} superConstructor\n * @param {object} [props]\n * @param {object} [descriptors]\n *\n * @returns {void}\n */\nconst inherits = (constructor, superConstructor, props, descriptors) => {\n  constructor.prototype = Object.create(superConstructor.prototype, descriptors);\n  constructor.prototype.constructor = constructor;\n  Object.defineProperty(constructor, 'super', {\n    value: superConstructor.prototype\n  });\n  props && Object.assign(constructor.prototype, props);\n}\n\n/**\n * Resolve object with deep prototype chain to a flat object\n * @param {Object} sourceObj source object\n * @param {Object} [destObj]\n * @param {Function|Boolean} [filter]\n * @param {Function} [propFilter]\n *\n * @returns {Object}\n */\nconst toFlatObject = (sourceObj, destObj, filter, propFilter) => {\n  let props;\n  let i;\n  let prop;\n  const merged = {};\n\n  destObj = destObj || {};\n  // eslint-disable-next-line no-eq-null,eqeqeq\n  if (sourceObj == null) return destObj;\n\n  do {\n    props = Object.getOwnPropertyNames(sourceObj);\n    i = props.length;\n    while (i-- > 0) {\n      prop = props[i];\n      if ((!propFilter || propFilter(prop, sourceObj, destObj)) && !merged[prop]) {\n        destObj[prop] = sourceObj[prop];\n        merged[prop] = true;\n      }\n    }\n    sourceObj = filter !== false && getPrototypeOf(sourceObj);\n  } while (sourceObj && (!filter || filter(sourceObj, destObj)) && sourceObj !== Object.prototype);\n\n  return destObj;\n}\n\n/**\n * Determines whether a string ends with the characters of a specified string\n *\n * @param {String} str\n * @param {String} searchString\n * @param {Number} [position= 0]\n *\n * @returns {boolean}\n */\nconst endsWith = (str, searchString, position) => {\n  str = String(str);\n  if (position === undefined || position > str.length) {\n    position = str.length;\n  }\n  position -= searchString.length;\n  const lastIndex = str.indexOf(searchString, position);\n  return lastIndex !== -1 && lastIndex === position;\n}\n\n\n/**\n * Returns new array from array like object or null if failed\n *\n * @param {*} [thing]\n *\n * @returns {?Array}\n */\nconst toArray = (thing) => {\n  if (!thing) return null;\n  if (isArray(thing)) return thing;\n  let i = thing.length;\n  if (!isNumber(i)) return null;\n  const arr = new Array(i);\n  while (i-- > 0) {\n    arr[i] = thing[i];\n  }\n  return arr;\n}\n\n/**\n * Checking if the Uint8Array exists and if it does, it returns a function that checks if the\n * thing passed in is an instance of Uint8Array\n *\n * @param {TypedArray}\n *\n * @returns {Array}\n */\n// eslint-disable-next-line func-names\nconst isTypedArray = (TypedArray => {\n  // eslint-disable-next-line func-names\n  return thing => {\n    return TypedArray && thing instanceof TypedArray;\n  };\n})(typeof Uint8Array !== 'undefined' && getPrototypeOf(Uint8Array));\n\n/**\n * For each entry in the object, call the function with the key and value.\n *\n * @param {Object<any, any>} obj - The object to iterate over.\n * @param {Function} fn - The function to call for each entry.\n *\n * @returns {void}\n */\nconst forEachEntry = (obj, fn) => {\n  const generator = obj && obj[Symbol.iterator];\n\n  const iterator = generator.call(obj);\n\n  let result;\n\n  while ((result = iterator.next()) && !result.done) {\n    const pair = result.value;\n    fn.call(obj, pair[0], pair[1]);\n  }\n}\n\n/**\n * It takes a regular expression and a string, and returns an array of all the matches\n *\n * @param {string} regExp - The regular expression to match against.\n * @param {string} str - The string to search.\n *\n * @returns {Array<boolean>}\n */\nconst matchAll = (regExp, str) => {\n  let matches;\n  const arr = [];\n\n  while ((matches = regExp.exec(str)) !== null) {\n    arr.push(matches);\n  }\n\n  return arr;\n}\n\n/* Checking if the kindOfTest function returns true when passed an HTMLFormElement. */\nconst isHTMLForm = kindOfTest('HTMLFormElement');\n\nconst toCamelCase = str => {\n  return str.toLowerCase().replace(/[-_\\s]([a-z\\d])(\\w*)/g,\n    function replacer(m, p1, p2) {\n      return p1.toUpperCase() + p2;\n    }\n  );\n};\n\n/* Creating a function that will check if an object has a property. */\nconst hasOwnProperty = (({hasOwnProperty}) => (obj, prop) => hasOwnProperty.call(obj, prop))(Object.prototype);\n\n/**\n * Determine if a value is a RegExp object\n *\n * @param {*} val The value to test\n *\n * @returns {boolean} True if value is a RegExp object, otherwise false\n */\nconst isRegExp = kindOfTest('RegExp');\n\nconst reduceDescriptors = (obj, reducer) => {\n  const descriptors = Object.getOwnPropertyDescriptors(obj);\n  const reducedDescriptors = {};\n\n  forEach(descriptors, (descriptor, name) => {\n    let ret;\n    if ((ret = reducer(descriptor, name, obj)) !== false) {\n      reducedDescriptors[name] = ret || descriptor;\n    }\n  });\n\n  Object.defineProperties(obj, reducedDescriptors);\n}\n\n/**\n * Makes all methods read-only\n * @param {Object} obj\n */\n\nconst freezeMethods = (obj) => {\n  reduceDescriptors(obj, (descriptor, name) => {\n    // skip restricted props in strict mode\n    if (isFunction(obj) && ['arguments', 'caller', 'callee'].indexOf(name) !== -1) {\n      return false;\n    }\n\n    const value = obj[name];\n\n    if (!isFunction(value)) return;\n\n    descriptor.enumerable = false;\n\n    if ('writable' in descriptor) {\n      descriptor.writable = false;\n      return;\n    }\n\n    if (!descriptor.set) {\n      descriptor.set = () => {\n        throw Error('Can not rewrite read-only method \\'' + name + '\\'');\n      };\n    }\n  });\n}\n\nconst toObjectSet = (arrayOrString, delimiter) => {\n  const obj = {};\n\n  const define = (arr) => {\n    arr.forEach(value => {\n      obj[value] = true;\n    });\n  }\n\n  isArray(arrayOrString) ? define(arrayOrString) : define(String(arrayOrString).split(delimiter));\n\n  return obj;\n}\n\nconst noop = () => {}\n\nconst toFiniteNumber = (value, defaultValue) => {\n  return value != null && Number.isFinite(value = +value) ? value : defaultValue;\n}\n\nconst ALPHA = 'abcdefghijklmnopqrstuvwxyz'\n\nconst DIGIT = '0123456789';\n\nconst ALPHABET = {\n  DIGIT,\n  ALPHA,\n  ALPHA_DIGIT: ALPHA + ALPHA.toUpperCase() + DIGIT\n}\n\nconst generateString = (size = 16, alphabet = ALPHABET.ALPHA_DIGIT) => {\n  let str = '';\n  const {length} = alphabet;\n  while (size--) {\n    str += alphabet[Math.random() * length|0]\n  }\n\n  return str;\n}\n\n/**\n * If the thing is a FormData object, return true, otherwise return false.\n *\n * @param {unknown} thing - The thing to check.\n *\n * @returns {boolean}\n */\nfunction isSpecCompliantForm(thing) {\n  return !!(thing && isFunction(thing.append) && thing[Symbol.toStringTag] === 'FormData' && thing[Symbol.iterator]);\n}\n\nconst toJSONObject = (obj) => {\n  const stack = new Array(10);\n\n  const visit = (source, i) => {\n\n    if (isObject(source)) {\n      if (stack.indexOf(source) >= 0) {\n        return;\n      }\n\n      if(!('toJSON' in source)) {\n        stack[i] = source;\n        const target = isArray(source) ? [] : {};\n\n        forEach(source, (value, key) => {\n          const reducedValue = visit(value, i + 1);\n          !isUndefined(reducedValue) && (target[key] = reducedValue);\n        });\n\n        stack[i] = undefined;\n\n        return target;\n      }\n    }\n\n    return source;\n  }\n\n  return visit(obj, 0);\n}\n\nconst isAsyncFn = kindOfTest('AsyncFunction');\n\nconst isThenable = (thing) =>\n  thing && (isObject(thing) || isFunction(thing)) && isFunction(thing.then) && isFunction(thing.catch);\n\n// original code\n// https://github.com/DigitalBrainJS/AxiosPromise/blob/16deab13710ec09779922131f3fa5954320f83ab/lib/utils.js#L11-L34\n\nconst _setImmediate = ((setImmediateSupported, postMessageSupported) => {\n  if (setImmediateSupported) {\n    return setImmediate;\n  }\n\n  return postMessageSupported ? ((token, callbacks) => {\n    _global.addEventListener(\"message\", ({source, data}) => {\n      if (source === _global && data === token) {\n        callbacks.length && callbacks.shift()();\n      }\n    }, false);\n\n    return (cb) => {\n      callbacks.push(cb);\n      _global.postMessage(token, \"*\");\n    }\n  })(`axios@${Math.random()}`, []) : (cb) => setTimeout(cb);\n})(\n  typeof setImmediate === 'function',\n  isFunction(_global.postMessage)\n);\n\nconst asap = typeof queueMicrotask !== 'undefined' ?\n  queueMicrotask.bind(_global) : ( typeof process !== 'undefined' && process.nextTick || _setImmediate);\n\n// *********************\n\nexport default {\n  isArray,\n  isArrayBuffer,\n  isBuffer,\n  isFormData,\n  isArrayBufferView,\n  isString,\n  isNumber,\n  isBoolean,\n  isObject,\n  isPlainObject,\n  isReadableStream,\n  isRequest,\n  isResponse,\n  isHeaders,\n  isUndefined,\n  isDate,\n  isFile,\n  isBlob,\n  isRegExp,\n  isFunction,\n  isStream,\n  isURLSearchParams,\n  isTypedArray,\n  isFileList,\n  forEach,\n  merge,\n  extend,\n  trim,\n  stripBOM,\n  inherits,\n  toFlatObject,\n  kindOf,\n  kindOfTest,\n  endsWith,\n  toArray,\n  forEachEntry,\n  matchAll,\n  isHTMLForm,\n  hasOwnProperty,\n  hasOwnProp: hasOwnProperty, // an alias to avoid ESLint no-prototype-builtins detection\n  reduceDescriptors,\n  freezeMethods,\n  toObjectSet,\n  toCamelCase,\n  noop,\n  toFiniteNumber,\n  findKey,\n  global: _global,\n  isContextDefined,\n  ALPHABET,\n  generateString,\n  isSpecCompliantForm,\n  toJSONObject,\n  isAsyncFn,\n  isThenable,\n  setImmediate: _setImmediate,\n  asap\n};\n","'use strict';\n\nimport utils from '../utils.js';\n\n/**\n * Create an Error with the specified message, config, error code, request and response.\n *\n * @param {string} message The error message.\n * @param {string} [code] The error code (for example, 'ECONNABORTED').\n * @param {Object} [config] The config.\n * @param {Object} [request] The request.\n * @param {Object} [response] The response.\n *\n * @returns {Error} The created error.\n */\nfunction AxiosError(message, code, config, request, response) {\n  Error.call(this);\n\n  if (Error.captureStackTrace) {\n    Error.captureStackTrace(this, this.constructor);\n  } else {\n    this.stack = (new Error()).stack;\n  }\n\n  this.message = message;\n  this.name = 'AxiosError';\n  code && (this.code = code);\n  config && (this.config = config);\n  request && (this.request = request);\n  if (response) {\n    this.response = response;\n    this.status = response.status ? response.status : null;\n  }\n}\n\nutils.inherits(AxiosError, Error, {\n  toJSON: function toJSON() {\n    return {\n      // Standard\n      message: this.message,\n      name: this.name,\n      // Microsoft\n      description: this.description,\n      number: this.number,\n      // Mozilla\n      fileName: this.fileName,\n      lineNumber: this.lineNumber,\n      columnNumber: this.columnNumber,\n      stack: this.stack,\n      // Axios\n      config: utils.toJSONObject(this.config),\n      code: this.code,\n      status: this.status\n    };\n  }\n});\n\nconst prototype = AxiosError.prototype;\nconst descriptors = {};\n\n[\n  'ERR_BAD_OPTION_VALUE',\n  'ERR_BAD_OPTION',\n  'ECONNABORTED',\n  'ETIMEDOUT',\n  'ERR_NETWORK',\n  'ERR_FR_TOO_MANY_REDIRECTS',\n  'ERR_DEPRECATED',\n  'ERR_BAD_RESPONSE',\n  'ERR_BAD_REQUEST',\n  'ERR_CANCELED',\n  'ERR_NOT_SUPPORT',\n  'ERR_INVALID_URL'\n// eslint-disable-next-line func-names\n].forEach(code => {\n  descriptors[code] = {value: code};\n});\n\nObject.defineProperties(AxiosError, descriptors);\nObject.defineProperty(prototype, 'isAxiosError', {value: true});\n\n// eslint-disable-next-line func-names\nAxiosError.from = (error, code, config, request, response, customProps) => {\n  const axiosError = Object.create(prototype);\n\n  utils.toFlatObject(error, axiosError, function filter(obj) {\n    return obj !== Error.prototype;\n  }, prop => {\n    return prop !== 'isAxiosError';\n  });\n\n  AxiosError.call(axiosError, error.message, code, config, request, response);\n\n  axiosError.cause = error;\n\n  axiosError.name = error.name;\n\n  customProps && Object.assign(axiosError, customProps);\n\n  return axiosError;\n};\n\nexport default AxiosError;\n","'use strict';\n\nimport utils from '../utils.js';\nimport AxiosError from '../core/AxiosError.js';\n// temporary hotfix to avoid circular references until AxiosURLSearchParams is refactored\nimport PlatformFormData from '../platform/node/classes/FormData.js';\n\n/**\n * Determines if the given thing is a array or js object.\n *\n * @param {string} thing - The object or array to be visited.\n *\n * @returns {boolean}\n */\nfunction isVisitable(thing) {\n  return utils.isPlainObject(thing) || utils.isArray(thing);\n}\n\n/**\n * It removes the brackets from the end of a string\n *\n * @param {string} key - The key of the parameter.\n *\n * @returns {string} the key without the brackets.\n */\nfunction removeBrackets(key) {\n  return utils.endsWith(key, '[]') ? key.slice(0, -2) : key;\n}\n\n/**\n * It takes a path, a key, and a boolean, and returns a string\n *\n * @param {string} path - The path to the current key.\n * @param {string} key - The key of the current object being iterated over.\n * @param {string} dots - If true, the key will be rendered with dots instead of brackets.\n *\n * @returns {string} The path to the current key.\n */\nfunction renderKey(path, key, dots) {\n  if (!path) return key;\n  return path.concat(key).map(function each(token, i) {\n    // eslint-disable-next-line no-param-reassign\n    token = removeBrackets(token);\n    return !dots && i ? '[' + token + ']' : token;\n  }).join(dots ? '.' : '');\n}\n\n/**\n * If the array is an array and none of its elements are visitable, then it's a flat array.\n *\n * @param {Array<any>} arr - The array to check\n *\n * @returns {boolean}\n */\nfunction isFlatArray(arr) {\n  return utils.isArray(arr) && !arr.some(isVisitable);\n}\n\nconst predicates = utils.toFlatObject(utils, {}, null, function filter(prop) {\n  return /^is[A-Z]/.test(prop);\n});\n\n/**\n * Convert a data object to FormData\n *\n * @param {Object} obj\n * @param {?Object} [formData]\n * @param {?Object} [options]\n * @param {Function} [options.visitor]\n * @param {Boolean} [options.metaTokens = true]\n * @param {Boolean} [options.dots = false]\n * @param {?Boolean} [options.indexes = false]\n *\n * @returns {Object}\n **/\n\n/**\n * It converts an object into a FormData object\n *\n * @param {Object<any, any>} obj - The object to convert to form data.\n * @param {string} formData - The FormData object to append to.\n * @param {Object<string, any>} options\n *\n * @returns\n */\nfunction toFormData(obj, formData, options) {\n  if (!utils.isObject(obj)) {\n    throw new TypeError('target must be an object');\n  }\n\n  // eslint-disable-next-line no-param-reassign\n  formData = formData || new (PlatformFormData || FormData)();\n\n  // eslint-disable-next-line no-param-reassign\n  options = utils.toFlatObject(options, {\n    metaTokens: true,\n    dots: false,\n    indexes: false\n  }, false, function defined(option, source) {\n    // eslint-disable-next-line no-eq-null,eqeqeq\n    return !utils.isUndefined(source[option]);\n  });\n\n  const metaTokens = options.metaTokens;\n  // eslint-disable-next-line no-use-before-define\n  const visitor = options.visitor || defaultVisitor;\n  const dots = options.dots;\n  const indexes = options.indexes;\n  const _Blob = options.Blob || typeof Blob !== 'undefined' && Blob;\n  const useBlob = _Blob && utils.isSpecCompliantForm(formData);\n\n  if (!utils.isFunction(visitor)) {\n    throw new TypeError('visitor must be a function');\n  }\n\n  function convertValue(value) {\n    if (value === null) return '';\n\n    if (utils.isDate(value)) {\n      return value.toISOString();\n    }\n\n    if (!useBlob && utils.isBlob(value)) {\n      throw new AxiosError('Blob is not supported. Use a Buffer instead.');\n    }\n\n    if (utils.isArrayBuffer(value) || utils.isTypedArray(value)) {\n      return useBlob && typeof Blob === 'function' ? new Blob([value]) : Buffer.from(value);\n    }\n\n    return value;\n  }\n\n  /**\n   * Default visitor.\n   *\n   * @param {*} value\n   * @param {String|Number} key\n   * @param {Array<String|Number>} path\n   * @this {FormData}\n   *\n   * @returns {boolean} return true to visit the each prop of the value recursively\n   */\n  function defaultVisitor(value, key, path) {\n    let arr = value;\n\n    if (value && !path && typeof value === 'object') {\n      if (utils.endsWith(key, '{}')) {\n        // eslint-disable-next-line no-param-reassign\n        key = metaTokens ? key : key.slice(0, -2);\n        // eslint-disable-next-line no-param-reassign\n        value = JSON.stringify(value);\n      } else if (\n        (utils.isArray(value) && isFlatArray(value)) ||\n        ((utils.isFileList(value) || utils.endsWith(key, '[]')) && (arr = utils.toArray(value))\n        )) {\n        // eslint-disable-next-line no-param-reassign\n        key = removeBrackets(key);\n\n        arr.forEach(function each(el, index) {\n          !(utils.isUndefined(el) || el === null) && formData.append(\n            // eslint-disable-next-line no-nested-ternary\n            indexes === true ? renderKey([key], index, dots) : (indexes === null ? key : key + '[]'),\n            convertValue(el)\n          );\n        });\n        return false;\n      }\n    }\n\n    if (isVisitable(value)) {\n      return true;\n    }\n\n    formData.append(renderKey(path, key, dots), convertValue(value));\n\n    return false;\n  }\n\n  const stack = [];\n\n  const exposedHelpers = Object.assign(predicates, {\n    defaultVisitor,\n    convertValue,\n    isVisitable\n  });\n\n  function build(value, path) {\n    if (utils.isUndefined(value)) return;\n\n    if (stack.indexOf(value) !== -1) {\n      throw Error('Circular reference detected in ' + path.join('.'));\n    }\n\n    stack.push(value);\n\n    utils.forEach(value, function each(el, key) {\n      const result = !(utils.isUndefined(el) || el === null) && visitor.call(\n        formData, el, utils.isString(key) ? key.trim() : key, path, exposedHelpers\n      );\n\n      if (result === true) {\n        build(el, path ? path.concat(key) : [key]);\n      }\n    });\n\n    stack.pop();\n  }\n\n  if (!utils.isObject(obj)) {\n    throw new TypeError('data must be an object');\n  }\n\n  build(obj);\n\n  return formData;\n}\n\nexport default toFormData;\n","'use strict';\n\nimport toFormData from './toFormData.js';\n\n/**\n * It encodes a string by replacing all characters that are not in the unreserved set with\n * their percent-encoded equivalents\n *\n * @param {string} str - The string to encode.\n *\n * @returns {string} The encoded string.\n */\nfunction encode(str) {\n  const charMap = {\n    '!': '%21',\n    \"'\": '%27',\n    '(': '%28',\n    ')': '%29',\n    '~': '%7E',\n    '%20': '+',\n    '%00': '\\x00'\n  };\n  return encodeURIComponent(str).replace(/[!'()~]|%20|%00/g, function replacer(match) {\n    return charMap[match];\n  });\n}\n\n/**\n * It takes a params object and converts it to a FormData object\n *\n * @param {Object<string, any>} params - The parameters to be converted to a FormData object.\n * @param {Object<string, any>} options - The options object passed to the Axios constructor.\n *\n * @returns {void}\n */\nfunction AxiosURLSearchParams(params, options) {\n  this._pairs = [];\n\n  params && toFormData(params, this, options);\n}\n\nconst prototype = AxiosURLSearchParams.prototype;\n\nprototype.append = function append(name, value) {\n  this._pairs.push([name, value]);\n};\n\nprototype.toString = function toString(encoder) {\n  const _encode = encoder ? function(value) {\n    return encoder.call(this, value, encode);\n  } : encode;\n\n  return this._pairs.map(function each(pair) {\n    return _encode(pair[0]) + '=' + _encode(pair[1]);\n  }, '').join('&');\n};\n\nexport default AxiosURLSearchParams;\n","'use strict';\n\nimport utils from '../utils.js';\nimport AxiosURLSearchParams from '../helpers/AxiosURLSearchParams.js';\n\n/**\n * It replaces all instances of the characters `:`, `$`, `,`, `+`, `[`, and `]` with their\n * URI encoded counterparts\n *\n * @param {string} val The value to be encoded.\n *\n * @returns {string} The encoded value.\n */\nfunction encode(val) {\n  return encodeURIComponent(val).\n    replace(/%3A/gi, ':').\n    replace(/%24/g, '$').\n    replace(/%2C/gi, ',').\n    replace(/%20/g, '+').\n    replace(/%5B/gi, '[').\n    replace(/%5D/gi, ']');\n}\n\n/**\n * Build a URL by appending params to the end\n *\n * @param {string} url The base of the url (e.g., http://www.google.com)\n * @param {object} [params] The params to be appended\n * @param {?(object|Function)} options\n *\n * @returns {string} The formatted url\n */\nexport default function buildURL(url, params, options) {\n  /*eslint no-param-reassign:0*/\n  if (!params) {\n    return url;\n  }\n  \n  const _encode = options && options.encode || encode;\n\n  if (utils.isFunction(options)) {\n    options = {\n      serialize: options\n    };\n  } \n\n  const serializeFn = options && options.serialize;\n\n  let serializedParams;\n\n  if (serializeFn) {\n    serializedParams = serializeFn(params, options);\n  } else {\n    serializedParams = utils.isURLSearchParams(params) ?\n      params.toString() :\n      new AxiosURLSearchParams(params, options).toString(_encode);\n  }\n\n  if (serializedParams) {\n    const hashmarkIndex = url.indexOf(\"#\");\n\n    if (hashmarkIndex !== -1) {\n      url = url.slice(0, hashmarkIndex);\n    }\n    url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;\n  }\n\n  return url;\n}\n","'use strict';\n\nimport utils from './../utils.js';\n\nclass InterceptorManager {\n  constructor() {\n    this.handlers = [];\n  }\n\n  /**\n   * Add a new interceptor to the stack\n   *\n   * @param {Function} fulfilled The function to handle `then` for a `Promise`\n   * @param {Function} rejected The function to handle `reject` for a `Promise`\n   *\n   * @return {Number} An ID used to remove interceptor later\n   */\n  use(fulfilled, rejected, options) {\n    this.handlers.push({\n      fulfilled,\n      rejected,\n      synchronous: options ? options.synchronous : false,\n      runWhen: options ? options.runWhen : null\n    });\n    return this.handlers.length - 1;\n  }\n\n  /**\n   * Remove an interceptor from the stack\n   *\n   * @param {Number} id The ID that was returned by `use`\n   *\n   * @returns {Boolean} `true` if the interceptor was removed, `false` otherwise\n   */\n  eject(id) {\n    if (this.handlers[id]) {\n      this.handlers[id] = null;\n    }\n  }\n\n  /**\n   * Clear all interceptors from the stack\n   *\n   * @returns {void}\n   */\n  clear() {\n    if (this.handlers) {\n      this.handlers = [];\n    }\n  }\n\n  /**\n   * Iterate over all the registered interceptors\n   *\n   * This method is particularly useful for skipping over any\n   * interceptors that may have become `null` calling `eject`.\n   *\n   * @param {Function} fn The function to call for each interceptor\n   *\n   * @returns {void}\n   */\n  forEach(fn) {\n    utils.forEach(this.handlers, function forEachHandler(h) {\n      if (h !== null) {\n        fn(h);\n      }\n    });\n  }\n}\n\nexport default InterceptorManager;\n","'use strict';\n\nexport default {\n  silentJSONParsing: true,\n  forcedJSONParsing: true,\n  clarifyTimeoutError: false\n};\n","'use strict';\n\nimport url from 'url';\nexport default url.URLSearchParams;\n","import URLSearchParams from './classes/URLSearchParams.js'\nimport FormData from './classes/FormData.js'\n\nexport default {\n  isNode: true,\n  classes: {\n    URLSearchParams,\n    FormData,\n    Blob: typeof Blob !== 'undefined' && Blob || null\n  },\n  protocols: [ 'http', 'https', 'file', 'data' ]\n};\n","const hasBrowserEnv = typeof window !== 'undefined' && typeof document !== 'undefined';\n\nconst _navigator = typeof navigator === 'object' && navigator || undefined;\n\n/**\n * Determine if we're running in a standard browser environment\n *\n * This allows axios to run in a web worker, and react-native.\n * Both environments support XMLHttpRequest, but not fully standard globals.\n *\n * web workers:\n *  typeof window -> undefined\n *  typeof document -> undefined\n *\n * react-native:\n *  navigator.product -> 'ReactNative'\n * nativescript\n *  navigator.product -> 'NativeScript' or 'NS'\n *\n * @returns {boolean}\n */\nconst hasStandardBrowserEnv = hasBrowserEnv &&\n  (!_navigator || ['ReactNative', 'NativeScript', 'NS'].indexOf(_navigator.product) < 0);\n\n/**\n * Determine if we're running in a standard browser webWorker environment\n *\n * Although the `isStandardBrowserEnv` method indicates that\n * `allows axios to run in a web worker`, the WebWorker will still be\n * filtered out due to its judgment standard\n * `typeof window !== 'undefined' && typeof document !== 'undefined'`.\n * This leads to a problem when axios post `FormData` in webWorker\n */\nconst hasStandardBrowserWebWorkerEnv = (() => {\n  return (\n    typeof WorkerGlobalScope !== 'undefined' &&\n    // eslint-disable-next-line no-undef\n    self instanceof WorkerGlobalScope &&\n    typeof self.importScripts === 'function'\n  );\n})();\n\nconst origin = hasBrowserEnv && window.location.href || 'http://localhost';\n\nexport {\n  hasBrowserEnv,\n  hasStandardBrowserWebWorkerEnv,\n  hasStandardBrowserEnv,\n  _navigator as navigator,\n  origin\n}\n","import platform from './node/index.js';\nimport * as utils from './common/utils.js';\n\nexport default {\n  ...utils,\n  ...platform\n}\n","'use strict';\n\nimport utils from '../utils.js';\nimport toFormData from './toFormData.js';\nimport platform from '../platform/index.js';\n\nexport default function toURLEncodedForm(data, options) {\n  return toFormData(data, new platform.classes.URLSearchParams(), Object.assign({\n    visitor: function(value, key, path, helpers) {\n      if (platform.isNode && utils.isBuffer(value)) {\n        this.append(key, value.toString('base64'));\n        return false;\n      }\n\n      return helpers.defaultVisitor.apply(this, arguments);\n    }\n  }, options));\n}\n","'use strict';\n\nimport utils from '../utils.js';\n\n/**\n * It takes a string like `foo[x][y][z]` and returns an array like `['foo', 'x', 'y', 'z']\n *\n * @param {string} name - The name of the property to get.\n *\n * @returns An array of strings.\n */\nfunction parsePropPath(name) {\n  // foo[x][y][z]\n  // foo.x.y.z\n  // foo-x-y-z\n  // foo x y z\n  return utils.matchAll(/\\w+|\\[(\\w*)]/g, name).map(match => {\n    return match[0] === '[]' ? '' : match[1] || match[0];\n  });\n}\n\n/**\n * Convert an array to an object.\n *\n * @param {Array<any>} arr - The array to convert to an object.\n *\n * @returns An object with the same keys and values as the array.\n */\nfunction arrayToObject(arr) {\n  const obj = {};\n  const keys = Object.keys(arr);\n  let i;\n  const len = keys.length;\n  let key;\n  for (i = 0; i < len; i++) {\n    key = keys[i];\n    obj[key] = arr[key];\n  }\n  return obj;\n}\n\n/**\n * It takes a FormData object and returns a JavaScript object\n *\n * @param {string} formData The FormData object to convert to JSON.\n *\n * @returns {Object<string, any> | null} The converted object.\n */\nfunction formDataToJSON(formData) {\n  function buildPath(path, value, target, index) {\n    let name = path[index++];\n\n    if (name === '__proto__') return true;\n\n    const isNumericKey = Number.isFinite(+name);\n    const isLast = index >= path.length;\n    name = !name && utils.isArray(target) ? target.length : name;\n\n    if (isLast) {\n      if (utils.hasOwnProp(target, name)) {\n        target[name] = [target[name], value];\n      } else {\n        target[name] = value;\n      }\n\n      return !isNumericKey;\n    }\n\n    if (!target[name] || !utils.isObject(target[name])) {\n      target[name] = [];\n    }\n\n    const result = buildPath(path, value, target[name], index);\n\n    if (result && utils.isArray(target[name])) {\n      target[name] = arrayToObject(target[name]);\n    }\n\n    return !isNumericKey;\n  }\n\n  if (utils.isFormData(formData) && utils.isFunction(formData.entries)) {\n    const obj = {};\n\n    utils.forEachEntry(formData, (name, value) => {\n      buildPath(parsePropPath(name), value, obj, 0);\n    });\n\n    return obj;\n  }\n\n  return null;\n}\n\nexport default formDataToJSON;\n","'use strict';\n\nimport utils from '../utils.js';\nimport AxiosError from '../core/AxiosError.js';\nimport transitionalDefaults from './transitional.js';\nimport toFormData from '../helpers/toFormData.js';\nimport toURLEncodedForm from '../helpers/toURLEncodedForm.js';\nimport platform from '../platform/index.js';\nimport formDataToJSON from '../helpers/formDataToJSON.js';\n\n/**\n * It takes a string, tries to parse it, and if it fails, it returns the stringified version\n * of the input\n *\n * @param {any} rawValue - The value to be stringified.\n * @param {Function} parser - A function that parses a string into a JavaScript object.\n * @param {Function} encoder - A function that takes a value and returns a string.\n *\n * @returns {string} A stringified version of the rawValue.\n */\nfunction stringifySafely(rawValue, parser, encoder) {\n  if (utils.isString(rawValue)) {\n    try {\n      (parser || JSON.parse)(rawValue);\n      return utils.trim(rawValue);\n    } catch (e) {\n      if (e.name !== 'SyntaxError') {\n        throw e;\n      }\n    }\n  }\n\n  return (encoder || JSON.stringify)(rawValue);\n}\n\nconst defaults = {\n\n  transitional: transitionalDefaults,\n\n  adapter: ['xhr', 'http', 'fetch'],\n\n  transformRequest: [function transformRequest(data, headers) {\n    const contentType = headers.getContentType() || '';\n    const hasJSONContentType = contentType.indexOf('application/json') > -1;\n    const isObjectPayload = utils.isObject(data);\n\n    if (isObjectPayload && utils.isHTMLForm(data)) {\n      data = new FormData(data);\n    }\n\n    const isFormData = utils.isFormData(data);\n\n    if (isFormData) {\n      return hasJSONContentType ? JSON.stringify(formDataToJSON(data)) : data;\n    }\n\n    if (utils.isArrayBuffer(data) ||\n      utils.isBuffer(data) ||\n      utils.isStream(data) ||\n      utils.isFile(data) ||\n      utils.isBlob(data) ||\n      utils.isReadableStream(data)\n    ) {\n      return data;\n    }\n    if (utils.isArrayBufferView(data)) {\n      return data.buffer;\n    }\n    if (utils.isURLSearchParams(data)) {\n      headers.setContentType('application/x-www-form-urlencoded;charset=utf-8', false);\n      return data.toString();\n    }\n\n    let isFileList;\n\n    if (isObjectPayload) {\n      if (contentType.indexOf('application/x-www-form-urlencoded') > -1) {\n        return toURLEncodedForm(data, this.formSerializer).toString();\n      }\n\n      if ((isFileList = utils.isFileList(data)) || contentType.indexOf('multipart/form-data') > -1) {\n        const _FormData = this.env && this.env.FormData;\n\n        return toFormData(\n          isFileList ? {'files[]': data} : data,\n          _FormData && new _FormData(),\n          this.formSerializer\n        );\n      }\n    }\n\n    if (isObjectPayload || hasJSONContentType ) {\n      headers.setContentType('application/json', false);\n      return stringifySafely(data);\n    }\n\n    return data;\n  }],\n\n  transformResponse: [function transformResponse(data) {\n    const transitional = this.transitional || defaults.transitional;\n    const forcedJSONParsing = transitional && transitional.forcedJSONParsing;\n    const JSONRequested = this.responseType === 'json';\n\n    if (utils.isResponse(data) || utils.isReadableStream(data)) {\n      return data;\n    }\n\n    if (data && utils.isString(data) && ((forcedJSONParsing && !this.responseType) || JSONRequested)) {\n      const silentJSONParsing = transitional && transitional.silentJSONParsing;\n      const strictJSONParsing = !silentJSONParsing && JSONRequested;\n\n      try {\n        return JSON.parse(data);\n      } catch (e) {\n        if (strictJSONParsing) {\n          if (e.name === 'SyntaxError') {\n            throw AxiosError.from(e, AxiosError.ERR_BAD_RESPONSE, this, null, this.response);\n          }\n          throw e;\n        }\n      }\n    }\n\n    return data;\n  }],\n\n  /**\n   * A timeout in milliseconds to abort a request. If set to 0 (default) a\n   * timeout is not created.\n   */\n  timeout: 0,\n\n  xsrfCookieName: 'XSRF-TOKEN',\n  xsrfHeaderName: 'X-XSRF-TOKEN',\n\n  maxContentLength: -1,\n  maxBodyLength: -1,\n\n  env: {\n    FormData: platform.classes.FormData,\n    Blob: platform.classes.Blob\n  },\n\n  validateStatus: function validateStatus(status) {\n    return status >= 200 && status < 300;\n  },\n\n  headers: {\n    common: {\n      'Accept': 'application/json, text/plain, */*',\n      'Content-Type': undefined\n    }\n  }\n};\n\nutils.forEach(['delete', 'get', 'head', 'post', 'put', 'patch'], (method) => {\n  defaults.headers[method] = {};\n});\n\nexport default defaults;\n","'use strict';\n\nimport utils from './../utils.js';\n\n// RawAxiosHeaders whose duplicates are ignored by node\n// c.f. https://nodejs.org/api/http.html#http_message_headers\nconst ignoreDuplicateOf = utils.toObjectSet([\n  'age', 'authorization', 'content-length', 'content-type', 'etag',\n  'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since',\n  'last-modified', 'location', 'max-forwards', 'proxy-authorization',\n  'referer', 'retry-after', 'user-agent'\n]);\n\n/**\n * Parse headers into an object\n *\n * ```\n * Date: Wed, 27 Aug 2014 08:58:49 GMT\n * Content-Type: application/json\n * Connection: keep-alive\n * Transfer-Encoding: chunked\n * ```\n *\n * @param {String} rawHeaders Headers needing to be parsed\n *\n * @returns {Object} Headers parsed into an object\n */\nexport default rawHeaders => {\n  const parsed = {};\n  let key;\n  let val;\n  let i;\n\n  rawHeaders && rawHeaders.split('\\n').forEach(function parser(line) {\n    i = line.indexOf(':');\n    key = line.substring(0, i).trim().toLowerCase();\n    val = line.substring(i + 1).trim();\n\n    if (!key || (parsed[key] && ignoreDuplicateOf[key])) {\n      return;\n    }\n\n    if (key === 'set-cookie') {\n      if (parsed[key]) {\n        parsed[key].push(val);\n      } else {\n        parsed[key] = [val];\n      }\n    } else {\n      parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;\n    }\n  });\n\n  return parsed;\n};\n","'use strict';\n\nimport utils from '../utils.js';\nimport parseHeaders from '../helpers/parseHeaders.js';\n\nconst $internals = Symbol('internals');\n\nfunction normalizeHeader(header) {\n  return header && String(header).trim().toLowerCase();\n}\n\nfunction normalizeValue(value) {\n  if (value === false || value == null) {\n    return value;\n  }\n\n  return utils.isArray(value) ? value.map(normalizeValue) : String(value);\n}\n\nfunction parseTokens(str) {\n  const tokens = Object.create(null);\n  const tokensRE = /([^\\s,;=]+)\\s*(?:=\\s*([^,;]+))?/g;\n  let match;\n\n  while ((match = tokensRE.exec(str))) {\n    tokens[match[1]] = match[2];\n  }\n\n  return tokens;\n}\n\nconst isValidHeaderName = (str) => /^[-_a-zA-Z0-9^`|~,!#$%&'*+.]+$/.test(str.trim());\n\nfunction matchHeaderValue(context, value, header, filter, isHeaderNameFilter) {\n  if (utils.isFunction(filter)) {\n    return filter.call(this, value, header);\n  }\n\n  if (isHeaderNameFilter) {\n    value = header;\n  }\n\n  if (!utils.isString(value)) return;\n\n  if (utils.isString(filter)) {\n    return value.indexOf(filter) !== -1;\n  }\n\n  if (utils.isRegExp(filter)) {\n    return filter.test(value);\n  }\n}\n\nfunction formatHeader(header) {\n  return header.trim()\n    .toLowerCase().replace(/([a-z\\d])(\\w*)/g, (w, char, str) => {\n      return char.toUpperCase() + str;\n    });\n}\n\nfunction buildAccessors(obj, header) {\n  const accessorName = utils.toCamelCase(' ' + header);\n\n  ['get', 'set', 'has'].forEach(methodName => {\n    Object.defineProperty(obj, methodName + accessorName, {\n      value: function(arg1, arg2, arg3) {\n        return this[methodName].call(this, header, arg1, arg2, arg3);\n      },\n      configurable: true\n    });\n  });\n}\n\nclass AxiosHeaders {\n  constructor(headers) {\n    headers && this.set(headers);\n  }\n\n  set(header, valueOrRewrite, rewrite) {\n    const self = this;\n\n    function setHeader(_value, _header, _rewrite) {\n      const lHeader = normalizeHeader(_header);\n\n      if (!lHeader) {\n        throw new Error('header name must be a non-empty string');\n      }\n\n      const key = utils.findKey(self, lHeader);\n\n      if(!key || self[key] === undefined || _rewrite === true || (_rewrite === undefined && self[key] !== false)) {\n        self[key || _header] = normalizeValue(_value);\n      }\n    }\n\n    const setHeaders = (headers, _rewrite) =>\n      utils.forEach(headers, (_value, _header) => setHeader(_value, _header, _rewrite));\n\n    if (utils.isPlainObject(header) || header instanceof this.constructor) {\n      setHeaders(header, valueOrRewrite)\n    } else if(utils.isString(header) && (header = header.trim()) && !isValidHeaderName(header)) {\n      setHeaders(parseHeaders(header), valueOrRewrite);\n    } else if (utils.isHeaders(header)) {\n      for (const [key, value] of header.entries()) {\n        setHeader(value, key, rewrite);\n      }\n    } else {\n      header != null && setHeader(valueOrRewrite, header, rewrite);\n    }\n\n    return this;\n  }\n\n  get(header, parser) {\n    header = normalizeHeader(header);\n\n    if (header) {\n      const key = utils.findKey(this, header);\n\n      if (key) {\n        const value = this[key];\n\n        if (!parser) {\n          return value;\n        }\n\n        if (parser === true) {\n          return parseTokens(value);\n        }\n\n        if (utils.isFunction(parser)) {\n          return parser.call(this, value, key);\n        }\n\n        if (utils.isRegExp(parser)) {\n          return parser.exec(value);\n        }\n\n        throw new TypeError('parser must be boolean|regexp|function');\n      }\n    }\n  }\n\n  has(header, matcher) {\n    header = normalizeHeader(header);\n\n    if (header) {\n      const key = utils.findKey(this, header);\n\n      return !!(key && this[key] !== undefined && (!matcher || matchHeaderValue(this, this[key], key, matcher)));\n    }\n\n    return false;\n  }\n\n  delete(header, matcher) {\n    const self = this;\n    let deleted = false;\n\n    function deleteHeader(_header) {\n      _header = normalizeHeader(_header);\n\n      if (_header) {\n        const key = utils.findKey(self, _header);\n\n        if (key && (!matcher || matchHeaderValue(self, self[key], key, matcher))) {\n          delete self[key];\n\n          deleted = true;\n        }\n      }\n    }\n\n    if (utils.isArray(header)) {\n      header.forEach(deleteHeader);\n    } else {\n      deleteHeader(header);\n    }\n\n    return deleted;\n  }\n\n  clear(matcher) {\n    const keys = Object.keys(this);\n    let i = keys.length;\n    let deleted = false;\n\n    while (i--) {\n      const key = keys[i];\n      if(!matcher || matchHeaderValue(this, this[key], key, matcher, true)) {\n        delete this[key];\n        deleted = true;\n      }\n    }\n\n    return deleted;\n  }\n\n  normalize(format) {\n    const self = this;\n    const headers = {};\n\n    utils.forEach(this, (value, header) => {\n      const key = utils.findKey(headers, header);\n\n      if (key) {\n        self[key] = normalizeValue(value);\n        delete self[header];\n        return;\n      }\n\n      const normalized = format ? formatHeader(header) : String(header).trim();\n\n      if (normalized !== header) {\n        delete self[header];\n      }\n\n      self[normalized] = normalizeValue(value);\n\n      headers[normalized] = true;\n    });\n\n    return this;\n  }\n\n  concat(...targets) {\n    return this.constructor.concat(this, ...targets);\n  }\n\n  toJSON(asStrings) {\n    const obj = Object.create(null);\n\n    utils.forEach(this, (value, header) => {\n      value != null && value !== false && (obj[header] = asStrings && utils.isArray(value) ? value.join(', ') : value);\n    });\n\n    return obj;\n  }\n\n  [Symbol.iterator]() {\n    return Object.entries(this.toJSON())[Symbol.iterator]();\n  }\n\n  toString() {\n    return Object.entries(this.toJSON()).map(([header, value]) => header + ': ' + value).join('\\n');\n  }\n\n  get [Symbol.toStringTag]() {\n    return 'AxiosHeaders';\n  }\n\n  static from(thing) {\n    return thing instanceof this ? thing : new this(thing);\n  }\n\n  static concat(first, ...targets) {\n    const computed = new this(first);\n\n    targets.forEach((target) => computed.set(target));\n\n    return computed;\n  }\n\n  static accessor(header) {\n    const internals = this[$internals] = (this[$internals] = {\n      accessors: {}\n    });\n\n    const accessors = internals.accessors;\n    const prototype = this.prototype;\n\n    function defineAccessor(_header) {\n      const lHeader = normalizeHeader(_header);\n\n      if (!accessors[lHeader]) {\n        buildAccessors(prototype, _header);\n        accessors[lHeader] = true;\n      }\n    }\n\n    utils.isArray(header) ? header.forEach(defineAccessor) : defineAccessor(header);\n\n    return this;\n  }\n}\n\nAxiosHeaders.accessor(['Content-Type', 'Content-Length', 'Accept', 'Accept-Encoding', 'User-Agent', 'Authorization']);\n\n// reserved names hotfix\nutils.reduceDescriptors(AxiosHeaders.prototype, ({value}, key) => {\n  let mapped = key[0].toUpperCase() + key.slice(1); // map `set` => `Set`\n  return {\n    get: () => value,\n    set(headerValue) {\n      this[mapped] = headerValue;\n    }\n  }\n});\n\nutils.freezeMethods(AxiosHeaders);\n\nexport default AxiosHeaders;\n","'use strict';\n\nimport utils from './../utils.js';\nimport defaults from '../defaults/index.js';\nimport AxiosHeaders from '../core/AxiosHeaders.js';\n\n/**\n * Transform the data for a request or a response\n *\n * @param {Array|Function} fns A single function or Array of functions\n * @param {?Object} response The response object\n *\n * @returns {*} The resulting transformed data\n */\nexport default function transformData(fns, response) {\n  const config = this || defaults;\n  const context = response || config;\n  const headers = AxiosHeaders.from(context.headers);\n  let data = context.data;\n\n  utils.forEach(fns, function transform(fn) {\n    data = fn.call(config, data, headers.normalize(), response ? response.status : undefined);\n  });\n\n  headers.normalize();\n\n  return data;\n}\n","'use strict';\n\nexport default function isCancel(value) {\n  return !!(value && value.__CANCEL__);\n}\n","'use strict';\n\nimport AxiosError from '../core/AxiosError.js';\nimport utils from '../utils.js';\n\n/**\n * A `CanceledError` is an object that is thrown when an operation is canceled.\n *\n * @param {string=} message The message.\n * @param {Object=} config The config.\n * @param {Object=} request The request.\n *\n * @returns {CanceledError} The created error.\n */\nfunction CanceledError(message, config, request) {\n  // eslint-disable-next-line no-eq-null,eqeqeq\n  AxiosError.call(this, message == null ? 'canceled' : message, AxiosError.ERR_CANCELED, config, request);\n  this.name = 'CanceledError';\n}\n\nutils.inherits(CanceledError, AxiosError, {\n  __CANCEL__: true\n});\n\nexport default CanceledError;\n","'use strict';\n\nimport AxiosError from './AxiosError.js';\n\n/**\n * Resolve or reject a Promise based on response status.\n *\n * @param {Function} resolve A function that resolves the promise.\n * @param {Function} reject A function that rejects the promise.\n * @param {object} response The response.\n *\n * @returns {object} The response.\n */\nexport default function settle(resolve, reject, response) {\n  const validateStatus = response.config.validateStatus;\n  if (!response.status || !validateStatus || validateStatus(response.status)) {\n    resolve(response);\n  } else {\n    reject(new AxiosError(\n      'Request failed with status code ' + response.status,\n      [AxiosError.ERR_BAD_REQUEST, AxiosError.ERR_BAD_RESPONSE][Math.floor(response.status / 100) - 4],\n      response.config,\n      response.request,\n      response\n    ));\n  }\n}\n","'use strict';\n\n/**\n * Determines whether the specified URL is absolute\n *\n * @param {string} url The URL to test\n *\n * @returns {boolean} True if the specified URL is absolute, otherwise false\n */\nexport default function isAbsoluteURL(url) {\n  // A URL is considered absolute if it begins with \"<scheme>://\" or \"//\" (protocol-relative URL).\n  // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed\n  // by any combination of letters, digits, plus, period, or hyphen.\n  return /^([a-z][a-z\\d+\\-.]*:)?\\/\\//i.test(url);\n}\n","'use strict';\n\n/**\n * Creates a new URL by combining the specified URLs\n *\n * @param {string} baseURL The base URL\n * @param {string} relativeURL The relative URL\n *\n * @returns {string} The combined URL\n */\nexport default function combineURLs(baseURL, relativeURL) {\n  return relativeURL\n    ? baseURL.replace(/\\/?\\/$/, '') + '/' + relativeURL.replace(/^\\/+/, '')\n    : baseURL;\n}\n","'use strict';\n\nimport isAbsoluteURL from '../helpers/isAbsoluteURL.js';\nimport combineURLs from '../helpers/combineURLs.js';\n\n/**\n * Creates a new URL by combining the baseURL with the requestedURL,\n * only when the requestedURL is not already an absolute URL.\n * If the requestURL is absolute, this function returns the requestedURL untouched.\n *\n * @param {string} baseURL The base URL\n * @param {string} requestedURL Absolute or relative URL to combine\n *\n * @returns {string} The combined full path\n */\nexport default function buildFullPath(baseURL, requestedURL) {\n  if (baseURL && !isAbsoluteURL(requestedURL)) {\n    return combineURLs(baseURL, requestedURL);\n  }\n  return requestedURL;\n}\n","export const VERSION = \"1.7.9\";","'use strict';\n\nexport default function parseProtocol(url) {\n  const match = /^([-+\\w]{1,25})(:?\\/\\/|:)/.exec(url);\n  return match && match[1] || '';\n}\n","'use strict';\n\nimport AxiosError from '../core/AxiosError.js';\nimport parseProtocol from './parseProtocol.js';\nimport platform from '../platform/index.js';\n\nconst DATA_URL_PATTERN = /^(?:([^;]+);)?(?:[^;]+;)?(base64|),([\\s\\S]*)$/;\n\n/**\n * Parse data uri to a Buffer or Blob\n *\n * @param {String} uri\n * @param {?Boolean} asBlob\n * @param {?Object} options\n * @param {?Function} options.Blob\n *\n * @returns {Buffer|Blob}\n */\nexport default function fromDataURI(uri, asBlob, options) {\n  const _Blob = options && options.Blob || platform.classes.Blob;\n  const protocol = parseProtocol(uri);\n\n  if (asBlob === undefined && _Blob) {\n    asBlob = true;\n  }\n\n  if (protocol === 'data') {\n    uri = protocol.length ? uri.slice(protocol.length + 1) : uri;\n\n    const match = DATA_URL_PATTERN.exec(uri);\n\n    if (!match) {\n      throw new AxiosError('Invalid URL', AxiosError.ERR_INVALID_URL);\n    }\n\n    const mime = match[1];\n    const isBase64 = match[2];\n    const body = match[3];\n    const buffer = Buffer.from(decodeURIComponent(body), isBase64 ? 'base64' : 'utf8');\n\n    if (asBlob) {\n      if (!_Blob) {\n        throw new AxiosError('Blob is not supported', AxiosError.ERR_NOT_SUPPORT);\n      }\n\n      return new _Blob([buffer], {type: mime});\n    }\n\n    return buffer;\n  }\n\n  throw new AxiosError('Unsupported protocol ' + protocol, AxiosError.ERR_NOT_SUPPORT);\n}\n","'use strict';\n\nimport stream from 'stream';\nimport utils from '../utils.js';\n\nconst kInternals = Symbol('internals');\n\nclass AxiosTransformStream extends stream.Transform{\n  constructor(options) {\n    options = utils.toFlatObject(options, {\n      maxRate: 0,\n      chunkSize: 64 * 1024,\n      minChunkSize: 100,\n      timeWindow: 500,\n      ticksRate: 2,\n      samplesCount: 15\n    }, null, (prop, source) => {\n      return !utils.isUndefined(source[prop]);\n    });\n\n    super({\n      readableHighWaterMark: options.chunkSize\n    });\n\n    const internals = this[kInternals] = {\n      timeWindow: options.timeWindow,\n      chunkSize: options.chunkSize,\n      maxRate: options.maxRate,\n      minChunkSize: options.minChunkSize,\n      bytesSeen: 0,\n      isCaptured: false,\n      notifiedBytesLoaded: 0,\n      ts: Date.now(),\n      bytes: 0,\n      onReadCallback: null\n    };\n\n    this.on('newListener', event => {\n      if (event === 'progress') {\n        if (!internals.isCaptured) {\n          internals.isCaptured = true;\n        }\n      }\n    });\n  }\n\n  _read(size) {\n    const internals = this[kInternals];\n\n    if (internals.onReadCallback) {\n      internals.onReadCallback();\n    }\n\n    return super._read(size);\n  }\n\n  _transform(chunk, encoding, callback) {\n    const internals = this[kInternals];\n    const maxRate = internals.maxRate;\n\n    const readableHighWaterMark = this.readableHighWaterMark;\n\n    const timeWindow = internals.timeWindow;\n\n    const divider = 1000 / timeWindow;\n    const bytesThreshold = (maxRate / divider);\n    const minChunkSize = internals.minChunkSize !== false ? Math.max(internals.minChunkSize, bytesThreshold * 0.01) : 0;\n\n    const pushChunk = (_chunk, _callback) => {\n      const bytes = Buffer.byteLength(_chunk);\n      internals.bytesSeen += bytes;\n      internals.bytes += bytes;\n\n      internals.isCaptured && this.emit('progress', internals.bytesSeen);\n\n      if (this.push(_chunk)) {\n        process.nextTick(_callback);\n      } else {\n        internals.onReadCallback = () => {\n          internals.onReadCallback = null;\n          process.nextTick(_callback);\n        };\n      }\n    }\n\n    const transformChunk = (_chunk, _callback) => {\n      const chunkSize = Buffer.byteLength(_chunk);\n      let chunkRemainder = null;\n      let maxChunkSize = readableHighWaterMark;\n      let bytesLeft;\n      let passed = 0;\n\n      if (maxRate) {\n        const now = Date.now();\n\n        if (!internals.ts || (passed = (now - internals.ts)) >= timeWindow) {\n          internals.ts = now;\n          bytesLeft = bytesThreshold - internals.bytes;\n          internals.bytes = bytesLeft < 0 ? -bytesLeft : 0;\n          passed = 0;\n        }\n\n        bytesLeft = bytesThreshold - internals.bytes;\n      }\n\n      if (maxRate) {\n        if (bytesLeft <= 0) {\n          // next time window\n          return setTimeout(() => {\n            _callback(null, _chunk);\n          }, timeWindow - passed);\n        }\n\n        if (bytesLeft < maxChunkSize) {\n          maxChunkSize = bytesLeft;\n        }\n      }\n\n      if (maxChunkSize && chunkSize > maxChunkSize && (chunkSize - maxChunkSize) > minChunkSize) {\n        chunkRemainder = _chunk.subarray(maxChunkSize);\n        _chunk = _chunk.subarray(0, maxChunkSize);\n      }\n\n      pushChunk(_chunk, chunkRemainder ? () => {\n        process.nextTick(_callback, null, chunkRemainder);\n      } : _callback);\n    };\n\n    transformChunk(chunk, function transformNextChunk(err, _chunk) {\n      if (err) {\n        return callback(err);\n      }\n\n      if (_chunk) {\n        transformChunk(_chunk, transformNextChunk);\n      } else {\n        callback(null);\n      }\n    });\n  }\n}\n\nexport default AxiosTransformStream;\n","const {asyncIterator} = Symbol;\n\nconst readBlob = async function* (blob) {\n  if (blob.stream) {\n    yield* blob.stream()\n  } else if (blob.arrayBuffer) {\n    yield await blob.arrayBuffer()\n  } else if (blob[asyncIterator]) {\n    yield* blob[asyncIterator]();\n  } else {\n    yield blob;\n  }\n}\n\nexport default readBlob;\n","import util from 'util';\nimport {Readable} from 'stream';\nimport utils from \"../utils.js\";\nimport readBlob from \"./readBlob.js\";\n\nconst BOUNDARY_ALPHABET = utils.ALPHABET.ALPHA_DIGIT + '-_';\n\nconst textEncoder = typeof TextEncoder === 'function' ? new TextEncoder() : new util.TextEncoder();\n\nconst CRLF = '\\r\\n';\nconst CRLF_BYTES = textEncoder.encode(CRLF);\nconst CRLF_BYTES_COUNT = 2;\n\nclass FormDataPart {\n  constructor(name, value) {\n    const {escapeName} = this.constructor;\n    const isStringValue = utils.isString(value);\n\n    let headers = `Content-Disposition: form-data; name=\"${escapeName(name)}\"${\n      !isStringValue && value.name ? `; filename=\"${escapeName(value.name)}\"` : ''\n    }${CRLF}`;\n\n    if (isStringValue) {\n      value = textEncoder.encode(String(value).replace(/\\r?\\n|\\r\\n?/g, CRLF));\n    } else {\n      headers += `Content-Type: ${value.type || \"application/octet-stream\"}${CRLF}`\n    }\n\n    this.headers = textEncoder.encode(headers + CRLF);\n\n    this.contentLength = isStringValue ? value.byteLength : value.size;\n\n    this.size = this.headers.byteLength + this.contentLength + CRLF_BYTES_COUNT;\n\n    this.name = name;\n    this.value = value;\n  }\n\n  async *encode(){\n    yield this.headers;\n\n    const {value} = this;\n\n    if(utils.isTypedArray(value)) {\n      yield value;\n    } else {\n      yield* readBlob(value);\n    }\n\n    yield CRLF_BYTES;\n  }\n\n  static escapeName(name) {\n      return String(name).replace(/[\\r\\n\"]/g, (match) => ({\n        '\\r' : '%0D',\n        '\\n' : '%0A',\n        '\"' : '%22',\n      }[match]));\n  }\n}\n\nconst formDataToStream = (form, headersHandler, options) => {\n  const {\n    tag = 'form-data-boundary',\n    size = 25,\n    boundary = tag + '-' + utils.generateString(size, BOUNDARY_ALPHABET)\n  } = options || {};\n\n  if(!utils.isFormData(form)) {\n    throw TypeError('FormData instance required');\n  }\n\n  if (boundary.length < 1 || boundary.length > 70) {\n    throw Error('boundary must be 10-70 characters long')\n  }\n\n  const boundaryBytes = textEncoder.encode('--' + boundary + CRLF);\n  const footerBytes = textEncoder.encode('--' + boundary + '--' + CRLF + CRLF);\n  let contentLength = footerBytes.byteLength;\n\n  const parts = Array.from(form.entries()).map(([name, value]) => {\n    const part = new FormDataPart(name, value);\n    contentLength += part.size;\n    return part;\n  });\n\n  contentLength += boundaryBytes.byteLength * parts.length;\n\n  contentLength = utils.toFiniteNumber(contentLength);\n\n  const computedHeaders = {\n    'Content-Type': `multipart/form-data; boundary=${boundary}`\n  }\n\n  if (Number.isFinite(contentLength)) {\n    computedHeaders['Content-Length'] = contentLength;\n  }\n\n  headersHandler && headersHandler(computedHeaders);\n\n  return Readable.from((async function *() {\n    for(const part of parts) {\n      yield boundaryBytes;\n      yield* part.encode();\n    }\n\n    yield footerBytes;\n  })());\n};\n\nexport default formDataToStream;\n","\"use strict\";\n\nimport stream from \"stream\";\n\nclass ZlibHeaderTransformStream extends stream.Transform {\n  __transform(chunk, encoding, callback) {\n    this.push(chunk);\n    callback();\n  }\n\n  _transform(chunk, encoding, callback) {\n    if (chunk.length !== 0) {\n      this._transform = this.__transform;\n\n      // Add Default Compression headers if no zlib headers are present\n      if (chunk[0] !== 120) { // Hex: 78\n        const header = Buffer.alloc(2);\n        header[0] = 120; // Hex: 78\n        header[1] = 156; // Hex: 9C \n        this.push(header, encoding);\n      }\n    }\n\n    this.__transform(chunk, encoding, callback);\n  }\n}\n\nexport default ZlibHeaderTransformStream;\n","import utils from \"../utils.js\";\n\nconst callbackify = (fn, reducer) => {\n  return utils.isAsyncFn(fn) ? function (...args) {\n    const cb = args.pop();\n    fn.apply(this, args).then((value) => {\n      try {\n        reducer ? cb(null, ...reducer(value)) : cb(null, value);\n      } catch (err) {\n        cb(err);\n      }\n    }, cb);\n  } : fn;\n}\n\nexport default callbackify;\n","'use strict';\n\n/**\n * Calculate data maxRate\n * @param {Number} [samplesCount= 10]\n * @param {Number} [min= 1000]\n * @returns {Function}\n */\nfunction speedometer(samplesCount, min) {\n  samplesCount = samplesCount || 10;\n  const bytes = new Array(samplesCount);\n  const timestamps = new Array(samplesCount);\n  let head = 0;\n  let tail = 0;\n  let firstSampleTS;\n\n  min = min !== undefined ? min : 1000;\n\n  return function push(chunkLength) {\n    const now = Date.now();\n\n    const startedAt = timestamps[tail];\n\n    if (!firstSampleTS) {\n      firstSampleTS = now;\n    }\n\n    bytes[head] = chunkLength;\n    timestamps[head] = now;\n\n    let i = tail;\n    let bytesCount = 0;\n\n    while (i !== head) {\n      bytesCount += bytes[i++];\n      i = i % samplesCount;\n    }\n\n    head = (head + 1) % samplesCount;\n\n    if (head === tail) {\n      tail = (tail + 1) % samplesCount;\n    }\n\n    if (now - firstSampleTS < min) {\n      return;\n    }\n\n    const passed = startedAt && now - startedAt;\n\n    return passed ? Math.round(bytesCount * 1000 / passed) : undefined;\n  };\n}\n\nexport default speedometer;\n","/**\n * Throttle decorator\n * @param {Function} fn\n * @param {Number} freq\n * @return {Function}\n */\nfunction throttle(fn, freq) {\n  let timestamp = 0;\n  let threshold = 1000 / freq;\n  let lastArgs;\n  let timer;\n\n  const invoke = (args, now = Date.now()) => {\n    timestamp = now;\n    lastArgs = null;\n    if (timer) {\n      clearTimeout(timer);\n      timer = null;\n    }\n    fn.apply(null, args);\n  }\n\n  const throttled = (...args) => {\n    const now = Date.now();\n    const passed = now - timestamp;\n    if ( passed >= threshold) {\n      invoke(args, now);\n    } else {\n      lastArgs = args;\n      if (!timer) {\n        timer = setTimeout(() => {\n          timer = null;\n          invoke(lastArgs)\n        }, threshold - passed);\n      }\n    }\n  }\n\n  const flush = () => lastArgs && invoke(lastArgs);\n\n  return [throttled, flush];\n}\n\nexport default throttle;\n","import speedometer from \"./speedometer.js\";\nimport throttle from \"./throttle.js\";\nimport utils from \"../utils.js\";\n\nexport const progressEventReducer = (listener, isDownloadStream, freq = 3) => {\n  let bytesNotified = 0;\n  const _speedometer = speedometer(50, 250);\n\n  return throttle(e => {\n    const loaded = e.loaded;\n    const total = e.lengthComputable ? e.total : undefined;\n    const progressBytes = loaded - bytesNotified;\n    const rate = _speedometer(progressBytes);\n    const inRange = loaded <= total;\n\n    bytesNotified = loaded;\n\n    const data = {\n      loaded,\n      total,\n      progress: total ? (loaded / total) : undefined,\n      bytes: progressBytes,\n      rate: rate ? rate : undefined,\n      estimated: rate && total && inRange ? (total - loaded) / rate : undefined,\n      event: e,\n      lengthComputable: total != null,\n      [isDownloadStream ? 'download' : 'upload']: true\n    };\n\n    listener(data);\n  }, freq);\n}\n\nexport const progressEventDecorator = (total, throttled) => {\n  const lengthComputable = total != null;\n\n  return [(loaded) => throttled[0]({\n    lengthComputable,\n    total,\n    loaded\n  }), throttled[1]];\n}\n\nexport const asyncDecorator = (fn) => (...args) => utils.asap(() => fn(...args));\n","'use strict';\n\nimport utils from './../utils.js';\nimport settle from './../core/settle.js';\nimport buildFullPath from '../core/buildFullPath.js';\nimport buildURL from './../helpers/buildURL.js';\nimport proxyFromEnv from 'proxy-from-env';\nimport http from 'http';\nimport https from 'https';\nimport util from 'util';\nimport followRedirects from 'follow-redirects';\nimport zlib from 'zlib';\nimport {VERSION} from '../env/data.js';\nimport transitionalDefaults from '../defaults/transitional.js';\nimport AxiosError from '../core/AxiosError.js';\nimport CanceledError from '../cancel/CanceledError.js';\nimport platform from '../platform/index.js';\nimport fromDataURI from '../helpers/fromDataURI.js';\nimport stream from 'stream';\nimport AxiosHeaders from '../core/AxiosHeaders.js';\nimport AxiosTransformStream from '../helpers/AxiosTransformStream.js';\nimport {EventEmitter} from 'events';\nimport formDataToStream from \"../helpers/formDataToStream.js\";\nimport readBlob from \"../helpers/readBlob.js\";\nimport ZlibHeaderTransformStream from '../helpers/ZlibHeaderTransformStream.js';\nimport callbackify from \"../helpers/callbackify.js\";\nimport {progressEventReducer, progressEventDecorator, asyncDecorator} from \"../helpers/progressEventReducer.js\";\n\nconst zlibOptions = {\n  flush: zlib.constants.Z_SYNC_FLUSH,\n  finishFlush: zlib.constants.Z_SYNC_FLUSH\n};\n\nconst brotliOptions = {\n  flush: zlib.constants.BROTLI_OPERATION_FLUSH,\n  finishFlush: zlib.constants.BROTLI_OPERATION_FLUSH\n}\n\nconst isBrotliSupported = utils.isFunction(zlib.createBrotliDecompress);\n\nconst {http: httpFollow, https: httpsFollow} = followRedirects;\n\nconst isHttps = /https:?/;\n\nconst supportedProtocols = platform.protocols.map(protocol => {\n  return protocol + ':';\n});\n\nconst flushOnFinish = (stream, [throttled, flush]) => {\n  stream\n    .on('end', flush)\n    .on('error', flush);\n\n  return throttled;\n}\n\n/**\n * If the proxy or config beforeRedirects functions are defined, call them with the options\n * object.\n *\n * @param {Object<string, any>} options - The options object that was passed to the request.\n *\n * @returns {Object<string, any>}\n */\nfunction dispatchBeforeRedirect(options, responseDetails) {\n  if (options.beforeRedirects.proxy) {\n    options.beforeRedirects.proxy(options);\n  }\n  if (options.beforeRedirects.config) {\n    options.beforeRedirects.config(options, responseDetails);\n  }\n}\n\n/**\n * If the proxy or config afterRedirects functions are defined, call them with the options\n *\n * @param {http.ClientRequestArgs} options\n * @param {AxiosProxyConfig} configProxy configuration from Axios options object\n * @param {string} location\n *\n * @returns {http.ClientRequestArgs}\n */\nfunction setProxy(options, configProxy, location) {\n  let proxy = configProxy;\n  if (!proxy && proxy !== false) {\n    const proxyUrl = proxyFromEnv.getProxyForUrl(location);\n    if (proxyUrl) {\n      proxy = new URL(proxyUrl);\n    }\n  }\n  if (proxy) {\n    // Basic proxy authorization\n    if (proxy.username) {\n      proxy.auth = (proxy.username || '') + ':' + (proxy.password || '');\n    }\n\n    if (proxy.auth) {\n      // Support proxy auth object form\n      if (proxy.auth.username || proxy.auth.password) {\n        proxy.auth = (proxy.auth.username || '') + ':' + (proxy.auth.password || '');\n      }\n      const base64 = Buffer\n        .from(proxy.auth, 'utf8')\n        .toString('base64');\n      options.headers['Proxy-Authorization'] = 'Basic ' + base64;\n    }\n\n    options.headers.host = options.hostname + (options.port ? ':' + options.port : '');\n    const proxyHost = proxy.hostname || proxy.host;\n    options.hostname = proxyHost;\n    // Replace 'host' since options is not a URL object\n    options.host = proxyHost;\n    options.port = proxy.port;\n    options.path = location;\n    if (proxy.protocol) {\n      options.protocol = proxy.protocol.includes(':') ? proxy.protocol : `${proxy.protocol}:`;\n    }\n  }\n\n  options.beforeRedirects.proxy = function beforeRedirect(redirectOptions) {\n    // Configure proxy for redirected request, passing the original config proxy to apply\n    // the exact same logic as if the redirected request was performed by axios directly.\n    setProxy(redirectOptions, configProxy, redirectOptions.href);\n  };\n}\n\nconst isHttpAdapterSupported = typeof process !== 'undefined' && utils.kindOf(process) === 'process';\n\n// temporary hotfix\n\nconst wrapAsync = (asyncExecutor) => {\n  return new Promise((resolve, reject) => {\n    let onDone;\n    let isDone;\n\n    const done = (value, isRejected) => {\n      if (isDone) return;\n      isDone = true;\n      onDone && onDone(value, isRejected);\n    }\n\n    const _resolve = (value) => {\n      done(value);\n      resolve(value);\n    };\n\n    const _reject = (reason) => {\n      done(reason, true);\n      reject(reason);\n    }\n\n    asyncExecutor(_resolve, _reject, (onDoneHandler) => (onDone = onDoneHandler)).catch(_reject);\n  })\n};\n\nconst resolveFamily = ({address, family}) => {\n  if (!utils.isString(address)) {\n    throw TypeError('address must be a string');\n  }\n  return ({\n    address,\n    family: family || (address.indexOf('.') < 0 ? 6 : 4)\n  });\n}\n\nconst buildAddressEntry = (address, family) => resolveFamily(utils.isObject(address) ? address : {address, family});\n\n/*eslint consistent-return:0*/\nexport default isHttpAdapterSupported && function httpAdapter(config) {\n  return wrapAsync(async function dispatchHttpRequest(resolve, reject, onDone) {\n    let {data, lookup, family} = config;\n    const {responseType, responseEncoding} = config;\n    const method = config.method.toUpperCase();\n    let isDone;\n    let rejected = false;\n    let req;\n\n    if (lookup) {\n      const _lookup = callbackify(lookup, (value) => utils.isArray(value) ? value : [value]);\n      // hotfix to support opt.all option which is required for node 20.x\n      lookup = (hostname, opt, cb) => {\n        _lookup(hostname, opt, (err, arg0, arg1) => {\n          if (err) {\n            return cb(err);\n          }\n\n          const addresses = utils.isArray(arg0) ? arg0.map(addr => buildAddressEntry(addr)) : [buildAddressEntry(arg0, arg1)];\n\n          opt.all ? cb(err, addresses) : cb(err, addresses[0].address, addresses[0].family);\n        });\n      }\n    }\n\n    // temporary internal emitter until the AxiosRequest class will be implemented\n    const emitter = new EventEmitter();\n\n    const onFinished = () => {\n      if (config.cancelToken) {\n        config.cancelToken.unsubscribe(abort);\n      }\n\n      if (config.signal) {\n        config.signal.removeEventListener('abort', abort);\n      }\n\n      emitter.removeAllListeners();\n    }\n\n    onDone((value, isRejected) => {\n      isDone = true;\n      if (isRejected) {\n        rejected = true;\n        onFinished();\n      }\n    });\n\n    function abort(reason) {\n      emitter.emit('abort', !reason || reason.type ? new CanceledError(null, config, req) : reason);\n    }\n\n    emitter.once('abort', reject);\n\n    if (config.cancelToken || config.signal) {\n      config.cancelToken && config.cancelToken.subscribe(abort);\n      if (config.signal) {\n        config.signal.aborted ? abort() : config.signal.addEventListener('abort', abort);\n      }\n    }\n\n    // Parse url\n    const fullPath = buildFullPath(config.baseURL, config.url);\n    const parsed = new URL(fullPath, platform.hasBrowserEnv ? platform.origin : undefined);\n    const protocol = parsed.protocol || supportedProtocols[0];\n\n    if (protocol === 'data:') {\n      let convertedData;\n\n      if (method !== 'GET') {\n        return settle(resolve, reject, {\n          status: 405,\n          statusText: 'method not allowed',\n          headers: {},\n          config\n        });\n      }\n\n      try {\n        convertedData = fromDataURI(config.url, responseType === 'blob', {\n          Blob: config.env && config.env.Blob\n        });\n      } catch (err) {\n        throw AxiosError.from(err, AxiosError.ERR_BAD_REQUEST, config);\n      }\n\n      if (responseType === 'text') {\n        convertedData = convertedData.toString(responseEncoding);\n\n        if (!responseEncoding || responseEncoding === 'utf8') {\n          convertedData = utils.stripBOM(convertedData);\n        }\n      } else if (responseType === 'stream') {\n        convertedData = stream.Readable.from(convertedData);\n      }\n\n      return settle(resolve, reject, {\n        data: convertedData,\n        status: 200,\n        statusText: 'OK',\n        headers: new AxiosHeaders(),\n        config\n      });\n    }\n\n    if (supportedProtocols.indexOf(protocol) === -1) {\n      return reject(new AxiosError(\n        'Unsupported protocol ' + protocol,\n        AxiosError.ERR_BAD_REQUEST,\n        config\n      ));\n    }\n\n    const headers = AxiosHeaders.from(config.headers).normalize();\n\n    // Set User-Agent (required by some servers)\n    // See https://github.com/axios/axios/issues/69\n    // User-Agent is specified; handle case where no UA header is desired\n    // Only set header if it hasn't been set in config\n    headers.set('User-Agent', 'axios/' + VERSION, false);\n\n    const {onUploadProgress, onDownloadProgress} = config;\n    const maxRate = config.maxRate;\n    let maxUploadRate = undefined;\n    let maxDownloadRate = undefined;\n\n    // support for spec compliant FormData objects\n    if (utils.isSpecCompliantForm(data)) {\n      const userBoundary = headers.getContentType(/boundary=([-_\\w\\d]{10,70})/i);\n\n      data = formDataToStream(data, (formHeaders) => {\n        headers.set(formHeaders);\n      }, {\n        tag: `axios-${VERSION}-boundary`,\n        boundary: userBoundary && userBoundary[1] || undefined\n      });\n      // support for https://www.npmjs.com/package/form-data api\n    } else if (utils.isFormData(data) && utils.isFunction(data.getHeaders)) {\n      headers.set(data.getHeaders());\n\n      if (!headers.hasContentLength()) {\n        try {\n          const knownLength = await util.promisify(data.getLength).call(data);\n          Number.isFinite(knownLength) && knownLength >= 0 && headers.setContentLength(knownLength);\n          /*eslint no-empty:0*/\n        } catch (e) {\n        }\n      }\n    } else if (utils.isBlob(data) || utils.isFile(data)) {\n      data.size && headers.setContentType(data.type || 'application/octet-stream');\n      headers.setContentLength(data.size || 0);\n      data = stream.Readable.from(readBlob(data));\n    } else if (data && !utils.isStream(data)) {\n      if (Buffer.isBuffer(data)) {\n        // Nothing to do...\n      } else if (utils.isArrayBuffer(data)) {\n        data = Buffer.from(new Uint8Array(data));\n      } else if (utils.isString(data)) {\n        data = Buffer.from(data, 'utf-8');\n      } else {\n        return reject(new AxiosError(\n          'Data after transformation must be a string, an ArrayBuffer, a Buffer, or a Stream',\n          AxiosError.ERR_BAD_REQUEST,\n          config\n        ));\n      }\n\n      // Add Content-Length header if data exists\n      headers.setContentLength(data.length, false);\n\n      if (config.maxBodyLength > -1 && data.length > config.maxBodyLength) {\n        return reject(new AxiosError(\n          'Request body larger than maxBodyLength limit',\n          AxiosError.ERR_BAD_REQUEST,\n          config\n        ));\n      }\n    }\n\n    const contentLength = utils.toFiniteNumber(headers.getContentLength());\n\n    if (utils.isArray(maxRate)) {\n      maxUploadRate = maxRate[0];\n      maxDownloadRate = maxRate[1];\n    } else {\n      maxUploadRate = maxDownloadRate = maxRate;\n    }\n\n    if (data && (onUploadProgress || maxUploadRate)) {\n      if (!utils.isStream(data)) {\n        data = stream.Readable.from(data, {objectMode: false});\n      }\n\n      data = stream.pipeline([data, new AxiosTransformStream({\n        maxRate: utils.toFiniteNumber(maxUploadRate)\n      })], utils.noop);\n\n      onUploadProgress && data.on('progress', flushOnFinish(\n        data,\n        progressEventDecorator(\n          contentLength,\n          progressEventReducer(asyncDecorator(onUploadProgress), false, 3)\n        )\n      ));\n    }\n\n    // HTTP basic authentication\n    let auth = undefined;\n    if (config.auth) {\n      const username = config.auth.username || '';\n      const password = config.auth.password || '';\n      auth = username + ':' + password;\n    }\n\n    if (!auth && parsed.username) {\n      const urlUsername = parsed.username;\n      const urlPassword = parsed.password;\n      auth = urlUsername + ':' + urlPassword;\n    }\n\n    auth && headers.delete('authorization');\n\n    let path;\n\n    try {\n      path = buildURL(\n        parsed.pathname + parsed.search,\n        config.params,\n        config.paramsSerializer\n      ).replace(/^\\?/, '');\n    } catch (err) {\n      const customErr = new Error(err.message);\n      customErr.config = config;\n      customErr.url = config.url;\n      customErr.exists = true;\n      return reject(customErr);\n    }\n\n    headers.set(\n      'Accept-Encoding',\n      'gzip, compress, deflate' + (isBrotliSupported ? ', br' : ''), false\n      );\n\n    const options = {\n      path,\n      method: method,\n      headers: headers.toJSON(),\n      agents: { http: config.httpAgent, https: config.httpsAgent },\n      auth,\n      protocol,\n      family,\n      beforeRedirect: dispatchBeforeRedirect,\n      beforeRedirects: {}\n    };\n\n    // cacheable-lookup integration hotfix\n    !utils.isUndefined(lookup) && (options.lookup = lookup);\n\n    if (config.socketPath) {\n      options.socketPath = config.socketPath;\n    } else {\n      options.hostname = parsed.hostname.startsWith(\"[\") ? parsed.hostname.slice(1, -1) : parsed.hostname;\n      options.port = parsed.port;\n      setProxy(options, config.proxy, protocol + '//' + parsed.hostname + (parsed.port ? ':' + parsed.port : '') + options.path);\n    }\n\n    let transport;\n    const isHttpsRequest = isHttps.test(options.protocol);\n    options.agent = isHttpsRequest ? config.httpsAgent : config.httpAgent;\n    if (config.transport) {\n      transport = config.transport;\n    } else if (config.maxRedirects === 0) {\n      transport = isHttpsRequest ? https : http;\n    } else {\n      if (config.maxRedirects) {\n        options.maxRedirects = config.maxRedirects;\n      }\n      if (config.beforeRedirect) {\n        options.beforeRedirects.config = config.beforeRedirect;\n      }\n      transport = isHttpsRequest ? httpsFollow : httpFollow;\n    }\n\n    if (config.maxBodyLength > -1) {\n      options.maxBodyLength = config.maxBodyLength;\n    } else {\n      // follow-redirects does not skip comparison, so it should always succeed for axios -1 unlimited\n      options.maxBodyLength = Infinity;\n    }\n\n    if (config.insecureHTTPParser) {\n      options.insecureHTTPParser = config.insecureHTTPParser;\n    }\n\n    // Create the request\n    req = transport.request(options, function handleResponse(res) {\n      if (req.destroyed) return;\n\n      const streams = [res];\n\n      const responseLength = +res.headers['content-length'];\n\n      if (onDownloadProgress || maxDownloadRate) {\n        const transformStream = new AxiosTransformStream({\n          maxRate: utils.toFiniteNumber(maxDownloadRate)\n        });\n\n        onDownloadProgress && transformStream.on('progress', flushOnFinish(\n          transformStream,\n          progressEventDecorator(\n            responseLength,\n            progressEventReducer(asyncDecorator(onDownloadProgress), true, 3)\n          )\n        ));\n\n        streams.push(transformStream);\n      }\n\n      // decompress the response body transparently if required\n      let responseStream = res;\n\n      // return the last request in case of redirects\n      const lastRequest = res.req || req;\n\n      // if decompress disabled we should not decompress\n      if (config.decompress !== false && res.headers['content-encoding']) {\n        // if no content, but headers still say that it is encoded,\n        // remove the header not confuse downstream operations\n        if (method === 'HEAD' || res.statusCode === 204) {\n          delete res.headers['content-encoding'];\n        }\n\n        switch ((res.headers['content-encoding'] || '').toLowerCase()) {\n        /*eslint default-case:0*/\n        case 'gzip':\n        case 'x-gzip':\n        case 'compress':\n        case 'x-compress':\n          // add the unzipper to the body stream processing pipeline\n          streams.push(zlib.createUnzip(zlibOptions));\n\n          // remove the content-encoding in order to not confuse downstream operations\n          delete res.headers['content-encoding'];\n          break;\n        case 'deflate':\n          streams.push(new ZlibHeaderTransformStream());\n\n          // add the unzipper to the body stream processing pipeline\n          streams.push(zlib.createUnzip(zlibOptions));\n\n          // remove the content-encoding in order to not confuse downstream operations\n          delete res.headers['content-encoding'];\n          break;\n        case 'br':\n          if (isBrotliSupported) {\n            streams.push(zlib.createBrotliDecompress(brotliOptions));\n            delete res.headers['content-encoding'];\n          }\n        }\n      }\n\n      responseStream = streams.length > 1 ? stream.pipeline(streams, utils.noop) : streams[0];\n\n      const offListeners = stream.finished(responseStream, () => {\n        offListeners();\n        onFinished();\n      });\n\n      const response = {\n        status: res.statusCode,\n        statusText: res.statusMessage,\n        headers: new AxiosHeaders(res.headers),\n        config,\n        request: lastRequest\n      };\n\n      if (responseType === 'stream') {\n        response.data = responseStream;\n        settle(resolve, reject, response);\n      } else {\n        const responseBuffer = [];\n        let totalResponseBytes = 0;\n\n        responseStream.on('data', function handleStreamData(chunk) {\n          responseBuffer.push(chunk);\n          totalResponseBytes += chunk.length;\n\n          // make sure the content length is not over the maxContentLength if specified\n          if (config.maxContentLength > -1 && totalResponseBytes > config.maxContentLength) {\n            // stream.destroy() emit aborted event before calling reject() on Node.js v16\n            rejected = true;\n            responseStream.destroy();\n            reject(new AxiosError('maxContentLength size of ' + config.maxContentLength + ' exceeded',\n              AxiosError.ERR_BAD_RESPONSE, config, lastRequest));\n          }\n        });\n\n        responseStream.on('aborted', function handlerStreamAborted() {\n          if (rejected) {\n            return;\n          }\n\n          const err = new AxiosError(\n            'stream has been aborted',\n            AxiosError.ERR_BAD_RESPONSE,\n            config,\n            lastRequest\n          );\n          responseStream.destroy(err);\n          reject(err);\n        });\n\n        responseStream.on('error', function handleStreamError(err) {\n          if (req.destroyed) return;\n          reject(AxiosError.from(err, null, config, lastRequest));\n        });\n\n        responseStream.on('end', function handleStreamEnd() {\n          try {\n            let responseData = responseBuffer.length === 1 ? responseBuffer[0] : Buffer.concat(responseBuffer);\n            if (responseType !== 'arraybuffer') {\n              responseData = responseData.toString(responseEncoding);\n              if (!responseEncoding || responseEncoding === 'utf8') {\n                responseData = utils.stripBOM(responseData);\n              }\n            }\n            response.data = responseData;\n          } catch (err) {\n            return reject(AxiosError.from(err, null, config, response.request, response));\n          }\n          settle(resolve, reject, response);\n        });\n      }\n\n      emitter.once('abort', err => {\n        if (!responseStream.destroyed) {\n          responseStream.emit('error', err);\n          responseStream.destroy();\n        }\n      });\n    });\n\n    emitter.once('abort', err => {\n      reject(err);\n      req.destroy(err);\n    });\n\n    // Handle errors\n    req.on('error', function handleRequestError(err) {\n      // @todo remove\n      // if (req.aborted && err.code !== AxiosError.ERR_FR_TOO_MANY_REDIRECTS) return;\n      reject(AxiosError.from(err, null, config, req));\n    });\n\n    // set tcp keep alive to prevent drop connection by peer\n    req.on('socket', function handleRequestSocket(socket) {\n      // default interval of sending ack packet is 1 minute\n      socket.setKeepAlive(true, 1000 * 60);\n    });\n\n    // Handle request timeout\n    if (config.timeout) {\n      // This is forcing a int timeout to avoid problems if the `req` interface doesn't handle other types.\n      const timeout = parseInt(config.timeout, 10);\n\n      if (Number.isNaN(timeout)) {\n        reject(new AxiosError(\n          'error trying to parse `config.timeout` to int',\n          AxiosError.ERR_BAD_OPTION_VALUE,\n          config,\n          req\n        ));\n\n        return;\n      }\n\n      // Sometime, the response will be very slow, and does not respond, the connect event will be block by event loop system.\n      // And timer callback will be fired, and abort() will be invoked before connection, then get \"socket hang up\" and code ECONNRESET.\n      // At this time, if we have a large number of request, nodejs will hang up some socket on background. and the number will up and up.\n      // And then these socket which be hang up will devouring CPU little by little.\n      // ClientRequest.setTimeout will be fired on the specify milliseconds, and can make sure that abort() will be fired after connect.\n      req.setTimeout(timeout, function handleRequestTimeout() {\n        if (isDone) return;\n        let timeoutErrorMessage = config.timeout ? 'timeout of ' + config.timeout + 'ms exceeded' : 'timeout exceeded';\n        const transitional = config.transitional || transitionalDefaults;\n        if (config.timeoutErrorMessage) {\n          timeoutErrorMessage = config.timeoutErrorMessage;\n        }\n        reject(new AxiosError(\n          timeoutErrorMessage,\n          transitional.clarifyTimeoutError ? AxiosError.ETIMEDOUT : AxiosError.ECONNABORTED,\n          config,\n          req\n        ));\n        abort();\n      });\n    }\n\n\n    // Send the request\n    if (utils.isStream(data)) {\n      let ended = false;\n      let errored = false;\n\n      data.on('end', () => {\n        ended = true;\n      });\n\n      data.once('error', err => {\n        errored = true;\n        req.destroy(err);\n      });\n\n      data.on('close', () => {\n        if (!ended && !errored) {\n          abort(new CanceledError('Request stream has been aborted', config, req));\n        }\n      });\n\n      data.pipe(req);\n    } else {\n      req.end(data);\n    }\n  });\n}\n\nexport const __setProxy = setProxy;\n","import platform from '../platform/index.js';\n\nexport default platform.hasStandardBrowserEnv ? ((origin, isMSIE) => (url) => {\n  url = new URL(url, platform.origin);\n\n  return (\n    origin.protocol === url.protocol &&\n    origin.host === url.host &&\n    (isMSIE || origin.port === url.port)\n  );\n})(\n  new URL(platform.origin),\n  platform.navigator && /(msie|trident)/i.test(platform.navigator.userAgent)\n) : () => true;\n","import utils from './../utils.js';\nimport platform from '../platform/index.js';\n\nexport default platform.hasStandardBrowserEnv ?\n\n  // Standard browser envs support document.cookie\n  {\n    write(name, value, expires, path, domain, secure) {\n      const cookie = [name + '=' + encodeURIComponent(value)];\n\n      utils.isNumber(expires) && cookie.push('expires=' + new Date(expires).toGMTString());\n\n      utils.isString(path) && cookie.push('path=' + path);\n\n      utils.isString(domain) && cookie.push('domain=' + domain);\n\n      secure === true && cookie.push('secure');\n\n      document.cookie = cookie.join('; ');\n    },\n\n    read(name) {\n      const match = document.cookie.match(new RegExp('(^|;\\\\s*)(' + name + ')=([^;]*)'));\n      return (match ? decodeURIComponent(match[3]) : null);\n    },\n\n    remove(name) {\n      this.write(name, '', Date.now() - 86400000);\n    }\n  }\n\n  :\n\n  // Non-standard browser env (web workers, react-native) lack needed support.\n  {\n    write() {},\n    read() {\n      return null;\n    },\n    remove() {}\n  };\n\n","'use strict';\n\nimport utils from '../utils.js';\nimport AxiosHeaders from \"./AxiosHeaders.js\";\n\nconst headersToObject = (thing) => thing instanceof AxiosHeaders ? { ...thing } : thing;\n\n/**\n * Config-specific merge-function which creates a new config-object\n * by merging two configuration objects together.\n *\n * @param {Object} config1\n * @param {Object} config2\n *\n * @returns {Object} New object resulting from merging config2 to config1\n */\nexport default function mergeConfig(config1, config2) {\n  // eslint-disable-next-line no-param-reassign\n  config2 = config2 || {};\n  const config = {};\n\n  function getMergedValue(target, source, prop, caseless) {\n    if (utils.isPlainObject(target) && utils.isPlainObject(source)) {\n      return utils.merge.call({caseless}, target, source);\n    } else if (utils.isPlainObject(source)) {\n      return utils.merge({}, source);\n    } else if (utils.isArray(source)) {\n      return source.slice();\n    }\n    return source;\n  }\n\n  // eslint-disable-next-line consistent-return\n  function mergeDeepProperties(a, b, prop , caseless) {\n    if (!utils.isUndefined(b)) {\n      return getMergedValue(a, b, prop , caseless);\n    } else if (!utils.isUndefined(a)) {\n      return getMergedValue(undefined, a, prop , caseless);\n    }\n  }\n\n  // eslint-disable-next-line consistent-return\n  function valueFromConfig2(a, b) {\n    if (!utils.isUndefined(b)) {\n      return getMergedValue(undefined, b);\n    }\n  }\n\n  // eslint-disable-next-line consistent-return\n  function defaultToConfig2(a, b) {\n    if (!utils.isUndefined(b)) {\n      return getMergedValue(undefined, b);\n    } else if (!utils.isUndefined(a)) {\n      return getMergedValue(undefined, a);\n    }\n  }\n\n  // eslint-disable-next-line consistent-return\n  function mergeDirectKeys(a, b, prop) {\n    if (prop in config2) {\n      return getMergedValue(a, b);\n    } else if (prop in config1) {\n      return getMergedValue(undefined, a);\n    }\n  }\n\n  const mergeMap = {\n    url: valueFromConfig2,\n    method: valueFromConfig2,\n    data: valueFromConfig2,\n    baseURL: defaultToConfig2,\n    transformRequest: defaultToConfig2,\n    transformResponse: defaultToConfig2,\n    paramsSerializer: defaultToConfig2,\n    timeout: defaultToConfig2,\n    timeoutMessage: defaultToConfig2,\n    withCredentials: defaultToConfig2,\n    withXSRFToken: defaultToConfig2,\n    adapter: defaultToConfig2,\n    responseType: defaultToConfig2,\n    xsrfCookieName: defaultToConfig2,\n    xsrfHeaderName: defaultToConfig2,\n    onUploadProgress: defaultToConfig2,\n    onDownloadProgress: defaultToConfig2,\n    decompress: defaultToConfig2,\n    maxContentLength: defaultToConfig2,\n    maxBodyLength: defaultToConfig2,\n    beforeRedirect: defaultToConfig2,\n    transport: defaultToConfig2,\n    httpAgent: defaultToConfig2,\n    httpsAgent: defaultToConfig2,\n    cancelToken: defaultToConfig2,\n    socketPath: defaultToConfig2,\n    responseEncoding: defaultToConfig2,\n    validateStatus: mergeDirectKeys,\n    headers: (a, b , prop) => mergeDeepProperties(headersToObject(a), headersToObject(b),prop, true)\n  };\n\n  utils.forEach(Object.keys(Object.assign({}, config1, config2)), function computeConfigValue(prop) {\n    const merge = mergeMap[prop] || mergeDeepProperties;\n    const configValue = merge(config1[prop], config2[prop], prop);\n    (utils.isUndefined(configValue) && merge !== mergeDirectKeys) || (config[prop] = configValue);\n  });\n\n  return config;\n}\n","import platform from \"../platform/index.js\";\nimport utils from \"../utils.js\";\nimport isURLSameOrigin from \"./isURLSameOrigin.js\";\nimport cookies from \"./cookies.js\";\nimport buildFullPath from \"../core/buildFullPath.js\";\nimport mergeConfig from \"../core/mergeConfig.js\";\nimport AxiosHeaders from \"../core/AxiosHeaders.js\";\nimport buildURL from \"./buildURL.js\";\n\nexport default (config) => {\n  const newConfig = mergeConfig({}, config);\n\n  let {data, withXSRFToken, xsrfHeaderName, xsrfCookieName, headers, auth} = newConfig;\n\n  newConfig.headers = headers = AxiosHeaders.from(headers);\n\n  newConfig.url = buildURL(buildFullPath(newConfig.baseURL, newConfig.url), config.params, config.paramsSerializer);\n\n  // HTTP basic authentication\n  if (auth) {\n    headers.set('Authorization', 'Basic ' +\n      btoa((auth.username || '') + ':' + (auth.password ? unescape(encodeURIComponent(auth.password)) : ''))\n    );\n  }\n\n  let contentType;\n\n  if (utils.isFormData(data)) {\n    if (platform.hasStandardBrowserEnv || platform.hasStandardBrowserWebWorkerEnv) {\n      headers.setContentType(undefined); // Let the browser set it\n    } else if ((contentType = headers.getContentType()) !== false) {\n      // fix semicolon duplication issue for ReactNative FormData implementation\n      const [type, ...tokens] = contentType ? contentType.split(';').map(token => token.trim()).filter(Boolean) : [];\n      headers.setContentType([type || 'multipart/form-data', ...tokens].join('; '));\n    }\n  }\n\n  // Add xsrf header\n  // This is only done if running in a standard browser environment.\n  // Specifically not if we're in a web worker, or react-native.\n\n  if (platform.hasStandardBrowserEnv) {\n    withXSRFToken && utils.isFunction(withXSRFToken) && (withXSRFToken = withXSRFToken(newConfig));\n\n    if (withXSRFToken || (withXSRFToken !== false && isURLSameOrigin(newConfig.url))) {\n      // Add xsrf header\n      const xsrfValue = xsrfHeaderName && xsrfCookieName && cookies.read(xsrfCookieName);\n\n      if (xsrfValue) {\n        headers.set(xsrfHeaderName, xsrfValue);\n      }\n    }\n  }\n\n  return newConfig;\n}\n\n","import utils from './../utils.js';\nimport settle from './../core/settle.js';\nimport transitionalDefaults from '../defaults/transitional.js';\nimport AxiosError from '../core/AxiosError.js';\nimport CanceledError from '../cancel/CanceledError.js';\nimport parseProtocol from '../helpers/parseProtocol.js';\nimport platform from '../platform/index.js';\nimport AxiosHeaders from '../core/AxiosHeaders.js';\nimport {progressEventReducer} from '../helpers/progressEventReducer.js';\nimport resolveConfig from \"../helpers/resolveConfig.js\";\n\nconst isXHRAdapterSupported = typeof XMLHttpRequest !== 'undefined';\n\nexport default isXHRAdapterSupported && function (config) {\n  return new Promise(function dispatchXhrRequest(resolve, reject) {\n    const _config = resolveConfig(config);\n    let requestData = _config.data;\n    const requestHeaders = AxiosHeaders.from(_config.headers).normalize();\n    let {responseType, onUploadProgress, onDownloadProgress} = _config;\n    let onCanceled;\n    let uploadThrottled, downloadThrottled;\n    let flushUpload, flushDownload;\n\n    function done() {\n      flushUpload && flushUpload(); // flush events\n      flushDownload && flushDownload(); // flush events\n\n      _config.cancelToken && _config.cancelToken.unsubscribe(onCanceled);\n\n      _config.signal && _config.signal.removeEventListener('abort', onCanceled);\n    }\n\n    let request = new XMLHttpRequest();\n\n    request.open(_config.method.toUpperCase(), _config.url, true);\n\n    // Set the request timeout in MS\n    request.timeout = _config.timeout;\n\n    function onloadend() {\n      if (!request) {\n        return;\n      }\n      // Prepare the response\n      const responseHeaders = AxiosHeaders.from(\n        'getAllResponseHeaders' in request && request.getAllResponseHeaders()\n      );\n      const responseData = !responseType || responseType === 'text' || responseType === 'json' ?\n        request.responseText : request.response;\n      const response = {\n        data: responseData,\n        status: request.status,\n        statusText: request.statusText,\n        headers: responseHeaders,\n        config,\n        request\n      };\n\n      settle(function _resolve(value) {\n        resolve(value);\n        done();\n      }, function _reject(err) {\n        reject(err);\n        done();\n      }, response);\n\n      // Clean up request\n      request = null;\n    }\n\n    if ('onloadend' in request) {\n      // Use onloadend if available\n      request.onloadend = onloadend;\n    } else {\n      // Listen for ready state to emulate onloadend\n      request.onreadystatechange = function handleLoad() {\n        if (!request || request.readyState !== 4) {\n          return;\n        }\n\n        // The request errored out and we didn't get a response, this will be\n        // handled by onerror instead\n        // With one exception: request that using file: protocol, most browsers\n        // will return status as 0 even though it's a successful request\n        if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {\n          return;\n        }\n        // readystate handler is calling before onerror or ontimeout handlers,\n        // so we should call onloadend on the next 'tick'\n        setTimeout(onloadend);\n      };\n    }\n\n    // Handle browser request cancellation (as opposed to a manual cancellation)\n    request.onabort = function handleAbort() {\n      if (!request) {\n        return;\n      }\n\n      reject(new AxiosError('Request aborted', AxiosError.ECONNABORTED, config, request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Handle low level network errors\n    request.onerror = function handleError() {\n      // Real errors are hidden from us by the browser\n      // onerror should only fire if it's a network error\n      reject(new AxiosError('Network Error', AxiosError.ERR_NETWORK, config, request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Handle timeout\n    request.ontimeout = function handleTimeout() {\n      let timeoutErrorMessage = _config.timeout ? 'timeout of ' + _config.timeout + 'ms exceeded' : 'timeout exceeded';\n      const transitional = _config.transitional || transitionalDefaults;\n      if (_config.timeoutErrorMessage) {\n        timeoutErrorMessage = _config.timeoutErrorMessage;\n      }\n      reject(new AxiosError(\n        timeoutErrorMessage,\n        transitional.clarifyTimeoutError ? AxiosError.ETIMEDOUT : AxiosError.ECONNABORTED,\n        config,\n        request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Remove Content-Type if data is undefined\n    requestData === undefined && requestHeaders.setContentType(null);\n\n    // Add headers to the request\n    if ('setRequestHeader' in request) {\n      utils.forEach(requestHeaders.toJSON(), function setRequestHeader(val, key) {\n        request.setRequestHeader(key, val);\n      });\n    }\n\n    // Add withCredentials to request if needed\n    if (!utils.isUndefined(_config.withCredentials)) {\n      request.withCredentials = !!_config.withCredentials;\n    }\n\n    // Add responseType to request if needed\n    if (responseType && responseType !== 'json') {\n      request.responseType = _config.responseType;\n    }\n\n    // Handle progress if needed\n    if (onDownloadProgress) {\n      ([downloadThrottled, flushDownload] = progressEventReducer(onDownloadProgress, true));\n      request.addEventListener('progress', downloadThrottled);\n    }\n\n    // Not all browsers support upload events\n    if (onUploadProgress && request.upload) {\n      ([uploadThrottled, flushUpload] = progressEventReducer(onUploadProgress));\n\n      request.upload.addEventListener('progress', uploadThrottled);\n\n      request.upload.addEventListener('loadend', flushUpload);\n    }\n\n    if (_config.cancelToken || _config.signal) {\n      // Handle cancellation\n      // eslint-disable-next-line func-names\n      onCanceled = cancel => {\n        if (!request) {\n          return;\n        }\n        reject(!cancel || cancel.type ? new CanceledError(null, config, request) : cancel);\n        request.abort();\n        request = null;\n      };\n\n      _config.cancelToken && _config.cancelToken.subscribe(onCanceled);\n      if (_config.signal) {\n        _config.signal.aborted ? onCanceled() : _config.signal.addEventListener('abort', onCanceled);\n      }\n    }\n\n    const protocol = parseProtocol(_config.url);\n\n    if (protocol && platform.protocols.indexOf(protocol) === -1) {\n      reject(new AxiosError('Unsupported protocol ' + protocol + ':', AxiosError.ERR_BAD_REQUEST, config));\n      return;\n    }\n\n\n    // Send the request\n    request.send(requestData || null);\n  });\n}\n","import CanceledError from \"../cancel/CanceledError.js\";\nimport AxiosError from \"../core/AxiosError.js\";\nimport utils from '../utils.js';\n\nconst composeSignals = (signals, timeout) => {\n  const {length} = (signals = signals ? signals.filter(Boolean) : []);\n\n  if (timeout || length) {\n    let controller = new AbortController();\n\n    let aborted;\n\n    const onabort = function (reason) {\n      if (!aborted) {\n        aborted = true;\n        unsubscribe();\n        const err = reason instanceof Error ? reason : this.reason;\n        controller.abort(err instanceof AxiosError ? err : new CanceledError(err instanceof Error ? err.message : err));\n      }\n    }\n\n    let timer = timeout && setTimeout(() => {\n      timer = null;\n      onabort(new AxiosError(`timeout ${timeout} of ms exceeded`, AxiosError.ETIMEDOUT))\n    }, timeout)\n\n    const unsubscribe = () => {\n      if (signals) {\n        timer && clearTimeout(timer);\n        timer = null;\n        signals.forEach(signal => {\n          signal.unsubscribe ? signal.unsubscribe(onabort) : signal.removeEventListener('abort', onabort);\n        });\n        signals = null;\n      }\n    }\n\n    signals.forEach((signal) => signal.addEventListener('abort', onabort));\n\n    const {signal} = controller;\n\n    signal.unsubscribe = () => utils.asap(unsubscribe);\n\n    return signal;\n  }\n}\n\nexport default composeSignals;\n","\nexport const streamChunk = function* (chunk, chunkSize) {\n  let len = chunk.byteLength;\n\n  if (!chunkSize || len < chunkSize) {\n    yield chunk;\n    return;\n  }\n\n  let pos = 0;\n  let end;\n\n  while (pos < len) {\n    end = pos + chunkSize;\n    yield chunk.slice(pos, end);\n    pos = end;\n  }\n}\n\nexport const readBytes = async function* (iterable, chunkSize) {\n  for await (const chunk of readStream(iterable)) {\n    yield* streamChunk(chunk, chunkSize);\n  }\n}\n\nconst readStream = async function* (stream) {\n  if (stream[Symbol.asyncIterator]) {\n    yield* stream;\n    return;\n  }\n\n  const reader = stream.getReader();\n  try {\n    for (;;) {\n      const {done, value} = await reader.read();\n      if (done) {\n        break;\n      }\n      yield value;\n    }\n  } finally {\n    await reader.cancel();\n  }\n}\n\nexport const trackStream = (stream, chunkSize, onProgress, onFinish) => {\n  const iterator = readBytes(stream, chunkSize);\n\n  let bytes = 0;\n  let done;\n  let _onFinish = (e) => {\n    if (!done) {\n      done = true;\n      onFinish && onFinish(e);\n    }\n  }\n\n  return new ReadableStream({\n    async pull(controller) {\n      try {\n        const {done, value} = await iterator.next();\n\n        if (done) {\n         _onFinish();\n          controller.close();\n          return;\n        }\n\n        let len = value.byteLength;\n        if (onProgress) {\n          let loadedBytes = bytes += len;\n          onProgress(loadedBytes);\n        }\n        controller.enqueue(new Uint8Array(value));\n      } catch (err) {\n        _onFinish(err);\n        throw err;\n      }\n    },\n    cancel(reason) {\n      _onFinish(reason);\n      return iterator.return();\n    }\n  }, {\n    highWaterMark: 2\n  })\n}\n","import platform from \"../platform/index.js\";\nimport utils from \"../utils.js\";\nimport AxiosError from \"../core/AxiosError.js\";\nimport composeSignals from \"../helpers/composeSignals.js\";\nimport {trackStream} from \"../helpers/trackStream.js\";\nimport AxiosHeaders from \"../core/AxiosHeaders.js\";\nimport {progressEventReducer, progressEventDecorator, asyncDecorator} from \"../helpers/progressEventReducer.js\";\nimport resolveConfig from \"../helpers/resolveConfig.js\";\nimport settle from \"../core/settle.js\";\n\nconst isFetchSupported = typeof fetch === 'function' && typeof Request === 'function' && typeof Response === 'function';\nconst isReadableStreamSupported = isFetchSupported && typeof ReadableStream === 'function';\n\n// used only inside the fetch adapter\nconst encodeText = isFetchSupported && (typeof TextEncoder === 'function' ?\n    ((encoder) => (str) => encoder.encode(str))(new TextEncoder()) :\n    async (str) => new Uint8Array(await new Response(str).arrayBuffer())\n);\n\nconst test = (fn, ...args) => {\n  try {\n    return !!fn(...args);\n  } catch (e) {\n    return false\n  }\n}\n\nconst supportsRequestStream = isReadableStreamSupported && test(() => {\n  let duplexAccessed = false;\n\n  const hasContentType = new Request(platform.origin, {\n    body: new ReadableStream(),\n    method: 'POST',\n    get duplex() {\n      duplexAccessed = true;\n      return 'half';\n    },\n  }).headers.has('Content-Type');\n\n  return duplexAccessed && !hasContentType;\n});\n\nconst DEFAULT_CHUNK_SIZE = 64 * 1024;\n\nconst supportsResponseStream = isReadableStreamSupported &&\n  test(() => utils.isReadableStream(new Response('').body));\n\n\nconst resolvers = {\n  stream: supportsResponseStream && ((res) => res.body)\n};\n\nisFetchSupported && (((res) => {\n  ['text', 'arrayBuffer', 'blob', 'formData', 'stream'].forEach(type => {\n    !resolvers[type] && (resolvers[type] = utils.isFunction(res[type]) ? (res) => res[type]() :\n      (_, config) => {\n        throw new AxiosError(`Response type '${type}' is not supported`, AxiosError.ERR_NOT_SUPPORT, config);\n      })\n  });\n})(new Response));\n\nconst getBodyLength = async (body) => {\n  if (body == null) {\n    return 0;\n  }\n\n  if(utils.isBlob(body)) {\n    return body.size;\n  }\n\n  if(utils.isSpecCompliantForm(body)) {\n    const _request = new Request(platform.origin, {\n      method: 'POST',\n      body,\n    });\n    return (await _request.arrayBuffer()).byteLength;\n  }\n\n  if(utils.isArrayBufferView(body) || utils.isArrayBuffer(body)) {\n    return body.byteLength;\n  }\n\n  if(utils.isURLSearchParams(body)) {\n    body = body + '';\n  }\n\n  if(utils.isString(body)) {\n    return (await encodeText(body)).byteLength;\n  }\n}\n\nconst resolveBodyLength = async (headers, body) => {\n  const length = utils.toFiniteNumber(headers.getContentLength());\n\n  return length == null ? getBodyLength(body) : length;\n}\n\nexport default isFetchSupported && (async (config) => {\n  let {\n    url,\n    method,\n    data,\n    signal,\n    cancelToken,\n    timeout,\n    onDownloadProgress,\n    onUploadProgress,\n    responseType,\n    headers,\n    withCredentials = 'same-origin',\n    fetchOptions\n  } = resolveConfig(config);\n\n  responseType = responseType ? (responseType + '').toLowerCase() : 'text';\n\n  let composedSignal = composeSignals([signal, cancelToken && cancelToken.toAbortSignal()], timeout);\n\n  let request;\n\n  const unsubscribe = composedSignal && composedSignal.unsubscribe && (() => {\n      composedSignal.unsubscribe();\n  });\n\n  let requestContentLength;\n\n  try {\n    if (\n      onUploadProgress && supportsRequestStream && method !== 'get' && method !== 'head' &&\n      (requestContentLength = await resolveBodyLength(headers, data)) !== 0\n    ) {\n      let _request = new Request(url, {\n        method: 'POST',\n        body: data,\n        duplex: \"half\"\n      });\n\n      let contentTypeHeader;\n\n      if (utils.isFormData(data) && (contentTypeHeader = _request.headers.get('content-type'))) {\n        headers.setContentType(contentTypeHeader)\n      }\n\n      if (_request.body) {\n        const [onProgress, flush] = progressEventDecorator(\n          requestContentLength,\n          progressEventReducer(asyncDecorator(onUploadProgress))\n        );\n\n        data = trackStream(_request.body, DEFAULT_CHUNK_SIZE, onProgress, flush);\n      }\n    }\n\n    if (!utils.isString(withCredentials)) {\n      withCredentials = withCredentials ? 'include' : 'omit';\n    }\n\n    // Cloudflare Workers throws when credentials are defined\n    // see https://github.com/cloudflare/workerd/issues/902\n    const isCredentialsSupported = \"credentials\" in Request.prototype;\n    request = new Request(url, {\n      ...fetchOptions,\n      signal: composedSignal,\n      method: method.toUpperCase(),\n      headers: headers.normalize().toJSON(),\n      body: data,\n      duplex: \"half\",\n      credentials: isCredentialsSupported ? withCredentials : undefined\n    });\n\n    let response = await fetch(request);\n\n    const isStreamResponse = supportsResponseStream && (responseType === 'stream' || responseType === 'response');\n\n    if (supportsResponseStream && (onDownloadProgress || (isStreamResponse && unsubscribe))) {\n      const options = {};\n\n      ['status', 'statusText', 'headers'].forEach(prop => {\n        options[prop] = response[prop];\n      });\n\n      const responseContentLength = utils.toFiniteNumber(response.headers.get('content-length'));\n\n      const [onProgress, flush] = onDownloadProgress && progressEventDecorator(\n        responseContentLength,\n        progressEventReducer(asyncDecorator(onDownloadProgress), true)\n      ) || [];\n\n      response = new Response(\n        trackStream(response.body, DEFAULT_CHUNK_SIZE, onProgress, () => {\n          flush && flush();\n          unsubscribe && unsubscribe();\n        }),\n        options\n      );\n    }\n\n    responseType = responseType || 'text';\n\n    let responseData = await resolvers[utils.findKey(resolvers, responseType) || 'text'](response, config);\n\n    !isStreamResponse && unsubscribe && unsubscribe();\n\n    return await new Promise((resolve, reject) => {\n      settle(resolve, reject, {\n        data: responseData,\n        headers: AxiosHeaders.from(response.headers),\n        status: response.status,\n        statusText: response.statusText,\n        config,\n        request\n      })\n    })\n  } catch (err) {\n    unsubscribe && unsubscribe();\n\n    if (err && err.name === 'TypeError' && /fetch/i.test(err.message)) {\n      throw Object.assign(\n        new AxiosError('Network Error', AxiosError.ERR_NETWORK, config, request),\n        {\n          cause: err.cause || err\n        }\n      )\n    }\n\n    throw AxiosError.from(err, err && err.code, config, request);\n  }\n});\n\n\n","import utils from '../utils.js';\nimport httpAdapter from './http.js';\nimport xhrAdapter from './xhr.js';\nimport fetchAdapter from './fetch.js';\nimport AxiosError from \"../core/AxiosError.js\";\n\nconst knownAdapters = {\n  http: httpAdapter,\n  xhr: xhrAdapter,\n  fetch: fetchAdapter\n}\n\nutils.forEach(knownAdapters, (fn, value) => {\n  if (fn) {\n    try {\n      Object.defineProperty(fn, 'name', {value});\n    } catch (e) {\n      // eslint-disable-next-line no-empty\n    }\n    Object.defineProperty(fn, 'adapterName', {value});\n  }\n});\n\nconst renderReason = (reason) => `- ${reason}`;\n\nconst isResolvedHandle = (adapter) => utils.isFunction(adapter) || adapter === null || adapter === false;\n\nexport default {\n  getAdapter: (adapters) => {\n    adapters = utils.isArray(adapters) ? adapters : [adapters];\n\n    const {length} = adapters;\n    let nameOrAdapter;\n    let adapter;\n\n    const rejectedReasons = {};\n\n    for (let i = 0; i < length; i++) {\n      nameOrAdapter = adapters[i];\n      let id;\n\n      adapter = nameOrAdapter;\n\n      if (!isResolvedHandle(nameOrAdapter)) {\n        adapter = knownAdapters[(id = String(nameOrAdapter)).toLowerCase()];\n\n        if (adapter === undefined) {\n          throw new AxiosError(`Unknown adapter '${id}'`);\n        }\n      }\n\n      if (adapter) {\n        break;\n      }\n\n      rejectedReasons[id || '#' + i] = adapter;\n    }\n\n    if (!adapter) {\n\n      const reasons = Object.entries(rejectedReasons)\n        .map(([id, state]) => `adapter ${id} ` +\n          (state === false ? 'is not supported by the environment' : 'is not available in the build')\n        );\n\n      let s = length ?\n        (reasons.length > 1 ? 'since :\\n' + reasons.map(renderReason).join('\\n') : ' ' + renderReason(reasons[0])) :\n        'as no adapter specified';\n\n      throw new AxiosError(\n        `There is no suitable adapter to dispatch the request ` + s,\n        'ERR_NOT_SUPPORT'\n      );\n    }\n\n    return adapter;\n  },\n  adapters: knownAdapters\n}\n","'use strict';\n\nimport transformData from './transformData.js';\nimport isCancel from '../cancel/isCancel.js';\nimport defaults from '../defaults/index.js';\nimport CanceledError from '../cancel/CanceledError.js';\nimport AxiosHeaders from '../core/AxiosHeaders.js';\nimport adapters from \"../adapters/adapters.js\";\n\n/**\n * Throws a `CanceledError` if cancellation has been requested.\n *\n * @param {Object} config The config that is to be used for the request\n *\n * @returns {void}\n */\nfunction throwIfCancellationRequested(config) {\n  if (config.cancelToken) {\n    config.cancelToken.throwIfRequested();\n  }\n\n  if (config.signal && config.signal.aborted) {\n    throw new CanceledError(null, config);\n  }\n}\n\n/**\n * Dispatch a request to the server using the configured adapter.\n *\n * @param {object} config The config that is to be used for the request\n *\n * @returns {Promise} The Promise to be fulfilled\n */\nexport default function dispatchRequest(config) {\n  throwIfCancellationRequested(config);\n\n  config.headers = AxiosHeaders.from(config.headers);\n\n  // Transform request data\n  config.data = transformData.call(\n    config,\n    config.transformRequest\n  );\n\n  if (['post', 'put', 'patch'].indexOf(config.method) !== -1) {\n    config.headers.setContentType('application/x-www-form-urlencoded', false);\n  }\n\n  const adapter = adapters.getAdapter(config.adapter || defaults.adapter);\n\n  return adapter(config).then(function onAdapterResolution(response) {\n    throwIfCancellationRequested(config);\n\n    // Transform response data\n    response.data = transformData.call(\n      config,\n      config.transformResponse,\n      response\n    );\n\n    response.headers = AxiosHeaders.from(response.headers);\n\n    return response;\n  }, function onAdapterRejection(reason) {\n    if (!isCancel(reason)) {\n      throwIfCancellationRequested(config);\n\n      // Transform response data\n      if (reason && reason.response) {\n        reason.response.data = transformData.call(\n          config,\n          config.transformResponse,\n          reason.response\n        );\n        reason.response.headers = AxiosHeaders.from(reason.response.headers);\n      }\n    }\n\n    return Promise.reject(reason);\n  });\n}\n","'use strict';\n\nimport {VERSION} from '../env/data.js';\nimport AxiosError from '../core/AxiosError.js';\n\nconst validators = {};\n\n// eslint-disable-next-line func-names\n['object', 'boolean', 'number', 'function', 'string', 'symbol'].forEach((type, i) => {\n  validators[type] = function validator(thing) {\n    return typeof thing === type || 'a' + (i < 1 ? 'n ' : ' ') + type;\n  };\n});\n\nconst deprecatedWarnings = {};\n\n/**\n * Transitional option validator\n *\n * @param {function|boolean?} validator - set to false if the transitional option has been removed\n * @param {string?} version - deprecated version / removed since version\n * @param {string?} message - some message with additional info\n *\n * @returns {function}\n */\nvalidators.transitional = function transitional(validator, version, message) {\n  function formatMessage(opt, desc) {\n    return '[Axios v' + VERSION + '] Transitional option \\'' + opt + '\\'' + desc + (message ? '. ' + message : '');\n  }\n\n  // eslint-disable-next-line func-names\n  return (value, opt, opts) => {\n    if (validator === false) {\n      throw new AxiosError(\n        formatMessage(opt, ' has been removed' + (version ? ' in ' + version : '')),\n        AxiosError.ERR_DEPRECATED\n      );\n    }\n\n    if (version && !deprecatedWarnings[opt]) {\n      deprecatedWarnings[opt] = true;\n      // eslint-disable-next-line no-console\n      console.warn(\n        formatMessage(\n          opt,\n          ' has been deprecated since v' + version + ' and will be removed in the near future'\n        )\n      );\n    }\n\n    return validator ? validator(value, opt, opts) : true;\n  };\n};\n\nvalidators.spelling = function spelling(correctSpelling) {\n  return (value, opt) => {\n    // eslint-disable-next-line no-console\n    console.warn(`${opt} is likely a misspelling of ${correctSpelling}`);\n    return true;\n  }\n};\n\n/**\n * Assert object's properties type\n *\n * @param {object} options\n * @param {object} schema\n * @param {boolean?} allowUnknown\n *\n * @returns {object}\n */\n\nfunction assertOptions(options, schema, allowUnknown) {\n  if (typeof options !== 'object') {\n    throw new AxiosError('options must be an object', AxiosError.ERR_BAD_OPTION_VALUE);\n  }\n  const keys = Object.keys(options);\n  let i = keys.length;\n  while (i-- > 0) {\n    const opt = keys[i];\n    const validator = schema[opt];\n    if (validator) {\n      const value = options[opt];\n      const result = value === undefined || validator(value, opt, options);\n      if (result !== true) {\n        throw new AxiosError('option ' + opt + ' must be ' + result, AxiosError.ERR_BAD_OPTION_VALUE);\n      }\n      continue;\n    }\n    if (allowUnknown !== true) {\n      throw new AxiosError('Unknown option ' + opt, AxiosError.ERR_BAD_OPTION);\n    }\n  }\n}\n\nexport default {\n  assertOptions,\n  validators\n};\n","'use strict';\n\nimport utils from './../utils.js';\nimport buildURL from '../helpers/buildURL.js';\nimport InterceptorManager from './InterceptorManager.js';\nimport dispatchRequest from './dispatchRequest.js';\nimport mergeConfig from './mergeConfig.js';\nimport buildFullPath from './buildFullPath.js';\nimport validator from '../helpers/validator.js';\nimport AxiosHeaders from './AxiosHeaders.js';\n\nconst validators = validator.validators;\n\n/**\n * Create a new instance of Axios\n *\n * @param {Object} instanceConfig The default config for the instance\n *\n * @return {Axios} A new instance of Axios\n */\nclass Axios {\n  constructor(instanceConfig) {\n    this.defaults = instanceConfig;\n    this.interceptors = {\n      request: new InterceptorManager(),\n      response: new InterceptorManager()\n    };\n  }\n\n  /**\n   * Dispatch a request\n   *\n   * @param {String|Object} configOrUrl The config specific for this request (merged with this.defaults)\n   * @param {?Object} config\n   *\n   * @returns {Promise} The Promise to be fulfilled\n   */\n  async request(configOrUrl, config) {\n    try {\n      return await this._request(configOrUrl, config);\n    } catch (err) {\n      if (err instanceof Error) {\n        let dummy = {};\n\n        Error.captureStackTrace ? Error.captureStackTrace(dummy) : (dummy = new Error());\n\n        // slice off the Error: ... line\n        const stack = dummy.stack ? dummy.stack.replace(/^.+\\n/, '') : '';\n        try {\n          if (!err.stack) {\n            err.stack = stack;\n            // match without the 2 top stack lines\n          } else if (stack && !String(err.stack).endsWith(stack.replace(/^.+\\n.+\\n/, ''))) {\n            err.stack += '\\n' + stack\n          }\n        } catch (e) {\n          // ignore the case where \"stack\" is an un-writable property\n        }\n      }\n\n      throw err;\n    }\n  }\n\n  _request(configOrUrl, config) {\n    /*eslint no-param-reassign:0*/\n    // Allow for axios('example/url'[, config]) a la fetch API\n    if (typeof configOrUrl === 'string') {\n      config = config || {};\n      config.url = configOrUrl;\n    } else {\n      config = configOrUrl || {};\n    }\n\n    config = mergeConfig(this.defaults, config);\n\n    const {transitional, paramsSerializer, headers} = config;\n\n    if (transitional !== undefined) {\n      validator.assertOptions(transitional, {\n        silentJSONParsing: validators.transitional(validators.boolean),\n        forcedJSONParsing: validators.transitional(validators.boolean),\n        clarifyTimeoutError: validators.transitional(validators.boolean)\n      }, false);\n    }\n\n    if (paramsSerializer != null) {\n      if (utils.isFunction(paramsSerializer)) {\n        config.paramsSerializer = {\n          serialize: paramsSerializer\n        }\n      } else {\n        validator.assertOptions(paramsSerializer, {\n          encode: validators.function,\n          serialize: validators.function\n        }, true);\n      }\n    }\n\n    validator.assertOptions(config, {\n      baseUrl: validators.spelling('baseURL'),\n      withXsrfToken: validators.spelling('withXSRFToken')\n    }, true);\n\n    // Set config.method\n    config.method = (config.method || this.defaults.method || 'get').toLowerCase();\n\n    // Flatten headers\n    let contextHeaders = headers && utils.merge(\n      headers.common,\n      headers[config.method]\n    );\n\n    headers && utils.forEach(\n      ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],\n      (method) => {\n        delete headers[method];\n      }\n    );\n\n    config.headers = AxiosHeaders.concat(contextHeaders, headers);\n\n    // filter out skipped interceptors\n    const requestInterceptorChain = [];\n    let synchronousRequestInterceptors = true;\n    this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {\n      if (typeof interceptor.runWhen === 'function' && interceptor.runWhen(config) === false) {\n        return;\n      }\n\n      synchronousRequestInterceptors = synchronousRequestInterceptors && interceptor.synchronous;\n\n      requestInterceptorChain.unshift(interceptor.fulfilled, interceptor.rejected);\n    });\n\n    const responseInterceptorChain = [];\n    this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {\n      responseInterceptorChain.push(interceptor.fulfilled, interceptor.rejected);\n    });\n\n    let promise;\n    let i = 0;\n    let len;\n\n    if (!synchronousRequestInterceptors) {\n      const chain = [dispatchRequest.bind(this), undefined];\n      chain.unshift.apply(chain, requestInterceptorChain);\n      chain.push.apply(chain, responseInterceptorChain);\n      len = chain.length;\n\n      promise = Promise.resolve(config);\n\n      while (i < len) {\n        promise = promise.then(chain[i++], chain[i++]);\n      }\n\n      return promise;\n    }\n\n    len = requestInterceptorChain.length;\n\n    let newConfig = config;\n\n    i = 0;\n\n    while (i < len) {\n      const onFulfilled = requestInterceptorChain[i++];\n      const onRejected = requestInterceptorChain[i++];\n      try {\n        newConfig = onFulfilled(newConfig);\n      } catch (error) {\n        onRejected.call(this, error);\n        break;\n      }\n    }\n\n    try {\n      promise = dispatchRequest.call(this, newConfig);\n    } catch (error) {\n      return Promise.reject(error);\n    }\n\n    i = 0;\n    len = responseInterceptorChain.length;\n\n    while (i < len) {\n      promise = promise.then(responseInterceptorChain[i++], responseInterceptorChain[i++]);\n    }\n\n    return promise;\n  }\n\n  getUri(config) {\n    config = mergeConfig(this.defaults, config);\n    const fullPath = buildFullPath(config.baseURL, config.url);\n    return buildURL(fullPath, config.params, config.paramsSerializer);\n  }\n}\n\n// Provide aliases for supported request methods\nutils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {\n  /*eslint func-names:0*/\n  Axios.prototype[method] = function(url, config) {\n    return this.request(mergeConfig(config || {}, {\n      method,\n      url,\n      data: (config || {}).data\n    }));\n  };\n});\n\nutils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {\n  /*eslint func-names:0*/\n\n  function generateHTTPMethod(isForm) {\n    return function httpMethod(url, data, config) {\n      return this.request(mergeConfig(config || {}, {\n        method,\n        headers: isForm ? {\n          'Content-Type': 'multipart/form-data'\n        } : {},\n        url,\n        data\n      }));\n    };\n  }\n\n  Axios.prototype[method] = generateHTTPMethod();\n\n  Axios.prototype[method + 'Form'] = generateHTTPMethod(true);\n});\n\nexport default Axios;\n","'use strict';\n\nimport CanceledError from './CanceledError.js';\n\n/**\n * A `CancelToken` is an object that can be used to request cancellation of an operation.\n *\n * @param {Function} executor The executor function.\n *\n * @returns {CancelToken}\n */\nclass CancelToken {\n  constructor(executor) {\n    if (typeof executor !== 'function') {\n      throw new TypeError('executor must be a function.');\n    }\n\n    let resolvePromise;\n\n    this.promise = new Promise(function promiseExecutor(resolve) {\n      resolvePromise = resolve;\n    });\n\n    const token = this;\n\n    // eslint-disable-next-line func-names\n    this.promise.then(cancel => {\n      if (!token._listeners) return;\n\n      let i = token._listeners.length;\n\n      while (i-- > 0) {\n        token._listeners[i](cancel);\n      }\n      token._listeners = null;\n    });\n\n    // eslint-disable-next-line func-names\n    this.promise.then = onfulfilled => {\n      let _resolve;\n      // eslint-disable-next-line func-names\n      const promise = new Promise(resolve => {\n        token.subscribe(resolve);\n        _resolve = resolve;\n      }).then(onfulfilled);\n\n      promise.cancel = function reject() {\n        token.unsubscribe(_resolve);\n      };\n\n      return promise;\n    };\n\n    executor(function cancel(message, config, request) {\n      if (token.reason) {\n        // Cancellation has already been requested\n        return;\n      }\n\n      token.reason = new CanceledError(message, config, request);\n      resolvePromise(token.reason);\n    });\n  }\n\n  /**\n   * Throws a `CanceledError` if cancellation has been requested.\n   */\n  throwIfRequested() {\n    if (this.reason) {\n      throw this.reason;\n    }\n  }\n\n  /**\n   * Subscribe to the cancel signal\n   */\n\n  subscribe(listener) {\n    if (this.reason) {\n      listener(this.reason);\n      return;\n    }\n\n    if (this._listeners) {\n      this._listeners.push(listener);\n    } else {\n      this._listeners = [listener];\n    }\n  }\n\n  /**\n   * Unsubscribe from the cancel signal\n   */\n\n  unsubscribe(listener) {\n    if (!this._listeners) {\n      return;\n    }\n    const index = this._listeners.indexOf(listener);\n    if (index !== -1) {\n      this._listeners.splice(index, 1);\n    }\n  }\n\n  toAbortSignal() {\n    const controller = new AbortController();\n\n    const abort = (err) => {\n      controller.abort(err);\n    };\n\n    this.subscribe(abort);\n\n    controller.signal.unsubscribe = () => this.unsubscribe(abort);\n\n    return controller.signal;\n  }\n\n  /**\n   * Returns an object that contains a new `CancelToken` and a function that, when called,\n   * cancels the `CancelToken`.\n   */\n  static source() {\n    let cancel;\n    const token = new CancelToken(function executor(c) {\n      cancel = c;\n    });\n    return {\n      token,\n      cancel\n    };\n  }\n}\n\nexport default CancelToken;\n","'use strict';\n\n/**\n * Syntactic sugar for invoking a function and expanding an array for arguments.\n *\n * Common use case would be to use `Function.prototype.apply`.\n *\n *  ```js\n *  function f(x, y, z) {}\n *  var args = [1, 2, 3];\n *  f.apply(null, args);\n *  ```\n *\n * With `spread` this example can be re-written.\n *\n *  ```js\n *  spread(function(x, y, z) {})([1, 2, 3]);\n *  ```\n *\n * @param {Function} callback\n *\n * @returns {Function}\n */\nexport default function spread(callback) {\n  return function wrap(arr) {\n    return callback.apply(null, arr);\n  };\n}\n","'use strict';\n\nimport utils from './../utils.js';\n\n/**\n * Determines whether the payload is an error thrown by Axios\n *\n * @param {*} payload The value to test\n *\n * @returns {boolean} True if the payload is an error thrown by Axios, otherwise false\n */\nexport default function isAxiosError(payload) {\n  return utils.isObject(payload) && (payload.isAxiosError === true);\n}\n","const HttpStatusCode = {\n  Continue: 100,\n  SwitchingProtocols: 101,\n  Processing: 102,\n  EarlyHints: 103,\n  Ok: 200,\n  Created: 201,\n  Accepted: 202,\n  NonAuthoritativeInformation: 203,\n  NoContent: 204,\n  ResetContent: 205,\n  PartialContent: 206,\n  MultiStatus: 207,\n  AlreadyReported: 208,\n  ImUsed: 226,\n  MultipleChoices: 300,\n  MovedPermanently: 301,\n  Found: 302,\n  SeeOther: 303,\n  NotModified: 304,\n  UseProxy: 305,\n  Unused: 306,\n  TemporaryRedirect: 307,\n  PermanentRedirect: 308,\n  BadRequest: 400,\n  Unauthorized: 401,\n  PaymentRequired: 402,\n  Forbidden: 403,\n  NotFound: 404,\n  MethodNotAllowed: 405,\n  NotAcceptable: 406,\n  ProxyAuthenticationRequired: 407,\n  RequestTimeout: 408,\n  Conflict: 409,\n  Gone: 410,\n  LengthRequired: 411,\n  PreconditionFailed: 412,\n  PayloadTooLarge: 413,\n  UriTooLong: 414,\n  UnsupportedMediaType: 415,\n  RangeNotSatisfiable: 416,\n  ExpectationFailed: 417,\n  ImATeapot: 418,\n  MisdirectedRequest: 421,\n  UnprocessableEntity: 422,\n  Locked: 423,\n  FailedDependency: 424,\n  TooEarly: 425,\n  UpgradeRequired: 426,\n  PreconditionRequired: 428,\n  TooManyRequests: 429,\n  RequestHeaderFieldsTooLarge: 431,\n  UnavailableForLegalReasons: 451,\n  InternalServerError: 500,\n  NotImplemented: 501,\n  BadGateway: 502,\n  ServiceUnavailable: 503,\n  GatewayTimeout: 504,\n  HttpVersionNotSupported: 505,\n  VariantAlsoNegotiates: 506,\n  InsufficientStorage: 507,\n  LoopDetected: 508,\n  NotExtended: 510,\n  NetworkAuthenticationRequired: 511,\n};\n\nObject.entries(HttpStatusCode).forEach(([key, value]) => {\n  HttpStatusCode[value] = key;\n});\n\nexport default HttpStatusCode;\n","'use strict';\n\nimport utils from './utils.js';\nimport bind from './helpers/bind.js';\nimport Axios from './core/Axios.js';\nimport mergeConfig from './core/mergeConfig.js';\nimport defaults from './defaults/index.js';\nimport formDataToJSON from './helpers/formDataToJSON.js';\nimport CanceledError from './cancel/CanceledError.js';\nimport CancelToken from './cancel/CancelToken.js';\nimport isCancel from './cancel/isCancel.js';\nimport {VERSION} from './env/data.js';\nimport toFormData from './helpers/toFormData.js';\nimport AxiosError from './core/AxiosError.js';\nimport spread from './helpers/spread.js';\nimport isAxiosError from './helpers/isAxiosError.js';\nimport AxiosHeaders from \"./core/AxiosHeaders.js\";\nimport adapters from './adapters/adapters.js';\nimport HttpStatusCode from './helpers/HttpStatusCode.js';\n\n/**\n * Create an instance of Axios\n *\n * @param {Object} defaultConfig The default config for the instance\n *\n * @returns {Axios} A new instance of Axios\n */\nfunction createInstance(defaultConfig) {\n  const context = new Axios(defaultConfig);\n  const instance = bind(Axios.prototype.request, context);\n\n  // Copy axios.prototype to instance\n  utils.extend(instance, Axios.prototype, context, {allOwnKeys: true});\n\n  // Copy context to instance\n  utils.extend(instance, context, null, {allOwnKeys: true});\n\n  // Factory for creating new instances\n  instance.create = function create(instanceConfig) {\n    return createInstance(mergeConfig(defaultConfig, instanceConfig));\n  };\n\n  return instance;\n}\n\n// Create the default instance to be exported\nconst axios = createInstance(defaults);\n\n// Expose Axios class to allow class inheritance\naxios.Axios = Axios;\n\n// Expose Cancel & CancelToken\naxios.CanceledError = CanceledError;\naxios.CancelToken = CancelToken;\naxios.isCancel = isCancel;\naxios.VERSION = VERSION;\naxios.toFormData = toFormData;\n\n// Expose AxiosError class\naxios.AxiosError = AxiosError;\n\n// alias for CanceledError for backward compatibility\naxios.Cancel = axios.CanceledError;\n\n// Expose all/spread\naxios.all = function all(promises) {\n  return Promise.all(promises);\n};\n\naxios.spread = spread;\n\n// Expose isAxiosError\naxios.isAxiosError = isAxiosError;\n\n// Expose mergeConfig\naxios.mergeConfig = mergeConfig;\n\naxios.AxiosHeaders = AxiosHeaders;\n\naxios.formToJSON = thing => formDataToJSON(utils.isHTMLForm(thing) ? new FormData(thing) : thing);\n\naxios.getAdapter = adapters.getAdapter;\n\naxios.HttpStatusCode = HttpStatusCode;\n\naxios.default = axios;\n\n// this module should only have a default export\nexport default 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\ No newline at end of file
diff --git a/backend/node_modules/axios/index.d.cts b/backend/node_modules/axios/index.d.cts
new file mode 100644
index 0000000..d513617
--- /dev/null
+++ b/backend/node_modules/axios/index.d.cts
@@ -0,0 +1,549 @@
+interface RawAxiosHeaders {
+  [key: string]: axios.AxiosHeaderValue;
+}
+
+type MethodsHeaders = Partial<{
+  [Key in axios.Method as Lowercase<Key>]: AxiosHeaders;
+} & {common: AxiosHeaders}>;
+
+type AxiosHeaderMatcher = (this: AxiosHeaders, value: string, name: string, headers: RawAxiosHeaders) => boolean;
+
+type AxiosHeaderParser = (this: AxiosHeaders, value: axios.AxiosHeaderValue, header: string) => any;
+
+type CommonRequestHeadersList = 'Accept' | 'Content-Length' | 'User-Agent'| 'Content-Encoding' | 'Authorization';
+
+type ContentType = axios.AxiosHeaderValue | 'text/html' | 'text/plain' | 'multipart/form-data' | 'application/json' | 'application/x-www-form-urlencoded' | 'application/octet-stream';
+
+type CommonResponseHeadersList = 'Server' | 'Content-Type' | 'Content-Length' | 'Cache-Control'| 'Content-Encoding';
+
+declare class AxiosHeaders {
+  constructor(
+      headers?: RawAxiosHeaders | AxiosHeaders | string
+  );
+
+  [key: string]: any;
+
+  set(headerName?: string, value?: axios.AxiosHeaderValue, rewrite?: boolean | AxiosHeaderMatcher): AxiosHeaders;
+  set(headers?: RawAxiosHeaders | AxiosHeaders | string, rewrite?: boolean): AxiosHeaders;
+
+  get(headerName: string, parser: RegExp): RegExpExecArray | null;
+  get(headerName: string, matcher?: true | AxiosHeaderParser): axios.AxiosHeaderValue;
+
+  has(header: string, matcher?: AxiosHeaderMatcher): boolean;
+
+  delete(header: string | string[], matcher?: AxiosHeaderMatcher): boolean;
+
+  clear(matcher?: AxiosHeaderMatcher): boolean;
+
+  normalize(format: boolean): AxiosHeaders;
+
+  concat(...targets: Array<AxiosHeaders | RawAxiosHeaders | string | undefined | null>): AxiosHeaders;
+
+  toJSON(asStrings?: boolean): RawAxiosHeaders;
+
+  static from(thing?: AxiosHeaders | RawAxiosHeaders | string): AxiosHeaders;
+
+  static accessor(header: string | string[]): AxiosHeaders;
+
+  static concat(...targets: Array<AxiosHeaders | RawAxiosHeaders | string | undefined | null>): AxiosHeaders;
+
+  setContentType(value: ContentType, rewrite?: boolean | AxiosHeaderMatcher): AxiosHeaders;
+  getContentType(parser?: RegExp): RegExpExecArray | null;
+  getContentType(matcher?: AxiosHeaderMatcher): axios.AxiosHeaderValue;
+  hasContentType(matcher?: AxiosHeaderMatcher): boolean;
+
+  setContentLength(value: axios.AxiosHeaderValue, rewrite?: boolean | AxiosHeaderMatcher): AxiosHeaders;
+  getContentLength(parser?: RegExp): RegExpExecArray | null;
+  getContentLength(matcher?: AxiosHeaderMatcher): axios.AxiosHeaderValue;
+  hasContentLength(matcher?: AxiosHeaderMatcher): boolean;
+
+  setAccept(value: axios.AxiosHeaderValue, rewrite?: boolean | AxiosHeaderMatcher): AxiosHeaders;
+  getAccept(parser?: RegExp): RegExpExecArray | null;
+  getAccept(matcher?: AxiosHeaderMatcher): axios.AxiosHeaderValue;
+  hasAccept(matcher?: AxiosHeaderMatcher): boolean;
+
+  setUserAgent(value: axios.AxiosHeaderValue, rewrite?: boolean | AxiosHeaderMatcher): AxiosHeaders;
+  getUserAgent(parser?: RegExp): RegExpExecArray | null;
+  getUserAgent(matcher?: AxiosHeaderMatcher): axios.AxiosHeaderValue;
+  hasUserAgent(matcher?: AxiosHeaderMatcher): boolean;
+
+  setContentEncoding(value: axios.AxiosHeaderValue, rewrite?: boolean | AxiosHeaderMatcher): AxiosHeaders;
+  getContentEncoding(parser?: RegExp): RegExpExecArray | null;
+  getContentEncoding(matcher?: AxiosHeaderMatcher): axios.AxiosHeaderValue;
+  hasContentEncoding(matcher?: AxiosHeaderMatcher): boolean;
+
+  setAuthorization(value: axios.AxiosHeaderValue, rewrite?: boolean | AxiosHeaderMatcher): AxiosHeaders;
+  getAuthorization(parser?: RegExp): RegExpExecArray | null;
+  getAuthorization(matcher?: AxiosHeaderMatcher): axios.AxiosHeaderValue;
+  hasAuthorization(matcher?: AxiosHeaderMatcher): boolean;
+
+  [Symbol.iterator](): IterableIterator<[string, axios.AxiosHeaderValue]>;
+}
+
+declare class AxiosError<T = unknown, D = any> extends Error {
+  constructor(
+      message?: string,
+      code?: string,
+      config?: axios.InternalAxiosRequestConfig<D>,
+      request?: any,
+      response?: axios.AxiosResponse<T, D>
+  );
+
+  config?: axios.InternalAxiosRequestConfig<D>;
+  code?: string;
+  request?: any;
+  response?: axios.AxiosResponse<T, D>;
+  isAxiosError: boolean;
+  status?: number;
+  toJSON: () => object;
+  cause?: Error;
+  static readonly ERR_FR_TOO_MANY_REDIRECTS = "ERR_FR_TOO_MANY_REDIRECTS";
+  static readonly ERR_BAD_OPTION_VALUE = "ERR_BAD_OPTION_VALUE";
+  static readonly ERR_BAD_OPTION = "ERR_BAD_OPTION";
+  static readonly ERR_NETWORK = "ERR_NETWORK";
+  static readonly ERR_DEPRECATED = "ERR_DEPRECATED";
+  static readonly ERR_BAD_RESPONSE = "ERR_BAD_RESPONSE";
+  static readonly ERR_BAD_REQUEST = "ERR_BAD_REQUEST";
+  static readonly ERR_NOT_SUPPORT = "ERR_NOT_SUPPORT";
+  static readonly ERR_INVALID_URL = "ERR_INVALID_URL";
+  static readonly ERR_CANCELED = "ERR_CANCELED";
+  static readonly ECONNABORTED = "ECONNABORTED";
+  static readonly ETIMEDOUT = "ETIMEDOUT";
+}
+
+declare class CanceledError<T> extends AxiosError<T> {
+}
+
+declare class Axios {
+  constructor(config?: axios.AxiosRequestConfig);
+  defaults: axios.AxiosDefaults;
+  interceptors: {
+    request: axios.AxiosInterceptorManager<axios.InternalAxiosRequestConfig>;
+    response: axios.AxiosInterceptorManager<axios.AxiosResponse>;
+  };
+  getUri(config?: axios.AxiosRequestConfig): string;
+  request<T = any, R = axios.AxiosResponse<T>, D = any>(config: axios.AxiosRequestConfig<D>): Promise<R>;
+  get<T = any, R = axios.AxiosResponse<T>, D = any>(url: string, config?: axios.AxiosRequestConfig<D>): Promise<R>;
+  delete<T = any, R = axios.AxiosResponse<T>, D = any>(url: string, config?: axios.AxiosRequestConfig<D>): Promise<R>;
+  head<T = any, R = axios.AxiosResponse<T>, D = any>(url: string, config?: axios.AxiosRequestConfig<D>): Promise<R>;
+  options<T = any, R = axios.AxiosResponse<T>, D = any>(url: string, config?: axios.AxiosRequestConfig<D>): Promise<R>;
+  post<T = any, R = axios.AxiosResponse<T>, D = any>(url: string, data?: D, config?: axios.AxiosRequestConfig<D>): Promise<R>;
+  put<T = any, R = axios.AxiosResponse<T>, D = any>(url: string, data?: D, config?: axios.AxiosRequestConfig<D>): Promise<R>;
+  patch<T = any, R = axios.AxiosResponse<T>, D = any>(url: string, data?: D, config?: axios.AxiosRequestConfig<D>): Promise<R>;
+  postForm<T = any, R = axios.AxiosResponse<T>, D = any>(url: string, data?: D, config?: axios.AxiosRequestConfig<D>): Promise<R>;
+  putForm<T = any, R = axios.AxiosResponse<T>, D = any>(url: string, data?: D, config?: axios.AxiosRequestConfig<D>): Promise<R>;
+  patchForm<T = any, R = axios.AxiosResponse<T>, D = any>(url: string, data?: D, config?: axios.AxiosRequestConfig<D>): Promise<R>;
+}
+
+declare enum HttpStatusCode {
+  Continue = 100,
+  SwitchingProtocols = 101,
+  Processing = 102,
+  EarlyHints = 103,
+  Ok = 200,
+  Created = 201,
+  Accepted = 202,
+  NonAuthoritativeInformation = 203,
+  NoContent = 204,
+  ResetContent = 205,
+  PartialContent = 206,
+  MultiStatus = 207,
+  AlreadyReported = 208,
+  ImUsed = 226,
+  MultipleChoices = 300,
+  MovedPermanently = 301,
+  Found = 302,
+  SeeOther = 303,
+  NotModified = 304,
+  UseProxy = 305,
+  Unused = 306,
+  TemporaryRedirect = 307,
+  PermanentRedirect = 308,
+  BadRequest = 400,
+  Unauthorized = 401,
+  PaymentRequired = 402,
+  Forbidden = 403,
+  NotFound = 404,
+  MethodNotAllowed = 405,
+  NotAcceptable = 406,
+  ProxyAuthenticationRequired = 407,
+  RequestTimeout = 408,
+  Conflict = 409,
+  Gone = 410,
+  LengthRequired = 411,
+  PreconditionFailed = 412,
+  PayloadTooLarge = 413,
+  UriTooLong = 414,
+  UnsupportedMediaType = 415,
+  RangeNotSatisfiable = 416,
+  ExpectationFailed = 417,
+  ImATeapot = 418,
+  MisdirectedRequest = 421,
+  UnprocessableEntity = 422,
+  Locked = 423,
+  FailedDependency = 424,
+  TooEarly = 425,
+  UpgradeRequired = 426,
+  PreconditionRequired = 428,
+  TooManyRequests = 429,
+  RequestHeaderFieldsTooLarge = 431,
+  UnavailableForLegalReasons = 451,
+  InternalServerError = 500,
+  NotImplemented = 501,
+  BadGateway = 502,
+  ServiceUnavailable = 503,
+  GatewayTimeout = 504,
+  HttpVersionNotSupported = 505,
+  VariantAlsoNegotiates = 506,
+  InsufficientStorage = 507,
+  LoopDetected = 508,
+  NotExtended = 510,
+  NetworkAuthenticationRequired = 511,
+}
+
+type InternalAxiosError<T = unknown, D = any> = AxiosError<T, D>;
+
+declare namespace axios {
+  type AxiosError<T = unknown, D = any> = InternalAxiosError<T, D>;
+
+  type RawAxiosRequestHeaders = Partial<RawAxiosHeaders & {
+    [Key in CommonRequestHeadersList]: AxiosHeaderValue;
+  } & {
+    'Content-Type': ContentType
+  }>;
+
+  type AxiosRequestHeaders = RawAxiosRequestHeaders & AxiosHeaders;
+
+  type AxiosHeaderValue = AxiosHeaders | string | string[] | number | boolean | null;
+
+  type RawCommonResponseHeaders = {
+    [Key in CommonResponseHeadersList]: AxiosHeaderValue;
+  } & {
+    "set-cookie": string[];
+  };
+
+  type RawAxiosResponseHeaders = Partial<RawAxiosHeaders & RawCommonResponseHeaders>;
+
+  type AxiosResponseHeaders = RawAxiosResponseHeaders & AxiosHeaders;
+
+  interface AxiosRequestTransformer {
+    (this: InternalAxiosRequestConfig, data: any, headers: AxiosRequestHeaders): any;
+  }
+
+  interface AxiosResponseTransformer {
+    (this: InternalAxiosRequestConfig, data: any, headers: AxiosResponseHeaders, status?: number): any;
+  }
+
+  interface AxiosAdapter {
+    (config: InternalAxiosRequestConfig): AxiosPromise;
+  }
+
+  interface AxiosBasicCredentials {
+    username: string;
+    password: string;
+  }
+
+  interface AxiosProxyConfig {
+    host: string;
+    port: number;
+    auth?: AxiosBasicCredentials;
+    protocol?: string;
+  }
+
+  type Method =
+    | 'get' | 'GET'
+    | 'delete' | 'DELETE'
+    | 'head' | 'HEAD'
+    | 'options' | 'OPTIONS'
+    | 'post' | 'POST'
+    | 'put' | 'PUT'
+    | 'patch' | 'PATCH'
+    | 'purge' | 'PURGE'
+    | 'link' | 'LINK'
+    | 'unlink' | 'UNLINK';
+
+  type ResponseType =
+    | 'arraybuffer'
+    | 'blob'
+    | 'document'
+    | 'json'
+    | 'text'
+    | 'stream'
+    | 'formdata';
+
+  type responseEncoding =
+    | 'ascii' | 'ASCII'
+    | 'ansi' | 'ANSI'
+    | 'binary' | 'BINARY'
+    | 'base64' | 'BASE64'
+    | 'base64url' | 'BASE64URL'
+    | 'hex' | 'HEX'
+    | 'latin1' | 'LATIN1'
+    | 'ucs-2' | 'UCS-2'
+    | 'ucs2' | 'UCS2'
+    | 'utf-8' | 'UTF-8'
+    | 'utf8' | 'UTF8'
+    | 'utf16le' | 'UTF16LE';
+
+  interface TransitionalOptions {
+    silentJSONParsing?: boolean;
+    forcedJSONParsing?: boolean;
+    clarifyTimeoutError?: boolean;
+  }
+
+  interface GenericAbortSignal {
+    readonly aborted: boolean;
+    onabort?: ((...args: any) => any) | null;
+    addEventListener?: (...args: any) => any;
+    removeEventListener?: (...args: any) => any;
+  }
+
+  interface FormDataVisitorHelpers {
+    defaultVisitor: SerializerVisitor;
+    convertValue: (value: any) => any;
+    isVisitable: (value: any) => boolean;
+  }
+
+  interface SerializerVisitor {
+    (
+        this: GenericFormData,
+        value: any,
+        key: string | number,
+        path: null | Array<string | number>,
+        helpers: FormDataVisitorHelpers
+    ): boolean;
+  }
+
+  interface SerializerOptions {
+    visitor?: SerializerVisitor;
+    dots?: boolean;
+    metaTokens?: boolean;
+    indexes?: boolean | null;
+  }
+
+  // tslint:disable-next-line
+  interface FormSerializerOptions extends SerializerOptions {
+  }
+
+  interface ParamEncoder {
+    (value: any, defaultEncoder: (value: any) => any): any;
+  }
+
+  interface CustomParamsSerializer {
+    (params: Record<string, any>, options?: ParamsSerializerOptions): string;
+  }
+
+  interface ParamsSerializerOptions extends SerializerOptions {
+    encode?: ParamEncoder;
+    serialize?: CustomParamsSerializer;
+  }
+
+  type MaxUploadRate = number;
+
+  type MaxDownloadRate = number;
+
+  type BrowserProgressEvent = any;
+
+  interface AxiosProgressEvent {
+    loaded: number;
+    total?: number;
+    progress?: number;
+    bytes: number;
+    rate?: number;
+    estimated?: number;
+    upload?: boolean;
+    download?: boolean;
+    event?: BrowserProgressEvent;
+    lengthComputable: boolean;
+  }
+
+  type Milliseconds = number;
+
+  type AxiosAdapterName = 'fetch' | 'xhr' | 'http' | string;
+
+  type AxiosAdapterConfig = AxiosAdapter | AxiosAdapterName;
+
+  type AddressFamily = 4 | 6 | undefined;
+
+  interface LookupAddressEntry {
+    address: string;
+    family?: AddressFamily;
+  }
+
+  type LookupAddress = string | LookupAddressEntry;
+
+  interface AxiosRequestConfig<D = any> {
+    url?: string;
+    method?: Method | string;
+    baseURL?: string;
+    transformRequest?: AxiosRequestTransformer | AxiosRequestTransformer[];
+    transformResponse?: AxiosResponseTransformer | AxiosResponseTransformer[];
+    headers?: (RawAxiosRequestHeaders & MethodsHeaders) | AxiosHeaders;
+    params?: any;
+    paramsSerializer?: ParamsSerializerOptions | CustomParamsSerializer;
+    data?: D;
+    timeout?: Milliseconds;
+    timeoutErrorMessage?: string;
+    withCredentials?: boolean;
+    adapter?: AxiosAdapterConfig | AxiosAdapterConfig[];
+    auth?: AxiosBasicCredentials;
+    responseType?: ResponseType;
+    responseEncoding?: responseEncoding | string;
+    xsrfCookieName?: string;
+    xsrfHeaderName?: string;
+    onUploadProgress?: (progressEvent: AxiosProgressEvent) => void;
+    onDownloadProgress?: (progressEvent: AxiosProgressEvent) => void;
+    maxContentLength?: number;
+    validateStatus?: ((status: number) => boolean) | null;
+    maxBodyLength?: number;
+    maxRedirects?: number;
+    maxRate?: number | [MaxUploadRate, MaxDownloadRate];
+    beforeRedirect?: (options: Record<string, any>, responseDetails: {headers: Record<string, string>, statusCode: HttpStatusCode}) => void;
+    socketPath?: string | null;
+    transport?: any;
+    httpAgent?: any;
+    httpsAgent?: any;
+    proxy?: AxiosProxyConfig | false;
+    cancelToken?: CancelToken;
+    decompress?: boolean;
+    transitional?: TransitionalOptions;
+    signal?: GenericAbortSignal;
+    insecureHTTPParser?: boolean;
+    env?: {
+      FormData?: new (...args: any[]) => object;
+    };
+    formSerializer?: FormSerializerOptions;
+    family?: AddressFamily;
+    lookup?: ((hostname: string, options: object, cb: (err: Error | null, address: LookupAddress | LookupAddress[], family?: AddressFamily) => void) => void) |
+        ((hostname: string, options: object) => Promise<[address: LookupAddressEntry | LookupAddressEntry[], family?: AddressFamily] | LookupAddress>);
+    withXSRFToken?: boolean | ((config: InternalAxiosRequestConfig) => boolean | undefined);
+    fetchOptions?: Record<string, any>;
+  }
+
+  // Alias
+  type RawAxiosRequestConfig<D = any> = AxiosRequestConfig<D>;
+
+  interface InternalAxiosRequestConfig<D = any> extends AxiosRequestConfig {
+    headers: AxiosRequestHeaders;
+  }
+
+  interface HeadersDefaults {
+    common: RawAxiosRequestHeaders;
+    delete: RawAxiosRequestHeaders;
+    get: RawAxiosRequestHeaders;
+    head: RawAxiosRequestHeaders;
+    post: RawAxiosRequestHeaders;
+    put: RawAxiosRequestHeaders;
+    patch: RawAxiosRequestHeaders;
+    options?: RawAxiosRequestHeaders;
+    purge?: RawAxiosRequestHeaders;
+    link?: RawAxiosRequestHeaders;
+    unlink?: RawAxiosRequestHeaders;
+  }
+
+  interface AxiosDefaults<D = any> extends Omit<AxiosRequestConfig<D>, 'headers'> {
+    headers: HeadersDefaults;
+  }
+
+  interface CreateAxiosDefaults<D = any> extends Omit<AxiosRequestConfig<D>, 'headers'> {
+    headers?: RawAxiosRequestHeaders | AxiosHeaders | Partial<HeadersDefaults>;
+  }
+
+  interface AxiosResponse<T = any, D = any>  {
+    data: T;
+    status: number;
+    statusText: string;
+    headers: RawAxiosResponseHeaders | AxiosResponseHeaders;
+    config: InternalAxiosRequestConfig<D>;
+    request?: any;
+  }
+
+  type AxiosPromise<T = any> = Promise<AxiosResponse<T>>;
+
+  interface CancelStatic {
+    new (message?: string): Cancel;
+  }
+
+  interface Cancel {
+    message: string | undefined;
+  }
+
+  interface Canceler {
+    (message?: string, config?: AxiosRequestConfig, request?: any): void;
+  }
+
+  interface CancelTokenStatic {
+    new (executor: (cancel: Canceler) => void): CancelToken;
+    source(): CancelTokenSource;
+  }
+
+  interface CancelToken {
+    promise: Promise<Cancel>;
+    reason?: Cancel;
+    throwIfRequested(): void;
+  }
+
+  interface CancelTokenSource {
+    token: CancelToken;
+    cancel: Canceler;
+  }
+
+  interface AxiosInterceptorOptions {
+    synchronous?: boolean;
+    runWhen?: (config: InternalAxiosRequestConfig) => boolean;
+  }
+
+  type AxiosRequestInterceptorUse<T> = (onFulfilled?: ((value: T) => T | Promise<T>) | null, onRejected?: ((error: any) => any) | null, options?: AxiosInterceptorOptions) => number;
+
+  type AxiosResponseInterceptorUse<T> = (onFulfilled?: ((value: T) => T | Promise<T>) | null, onRejected?: ((error: any) => any) | null) => number;
+
+  interface AxiosInterceptorManager<V> {
+    use: V extends AxiosResponse ? AxiosResponseInterceptorUse<V> : AxiosRequestInterceptorUse<V>;
+    eject(id: number): void;
+    clear(): void;
+  }
+
+  interface AxiosInstance extends Axios {
+    <T = any, R = AxiosResponse<T>, D = any>(config: AxiosRequestConfig<D>): Promise<R>;
+    <T = any, R = AxiosResponse<T>, D = any>(url: string, config?: AxiosRequestConfig<D>): Promise<R>;
+
+    defaults: Omit<AxiosDefaults, 'headers'> & {
+      headers: HeadersDefaults & {
+        [key: string]: AxiosHeaderValue
+      }
+    };
+  }
+
+  interface GenericFormData {
+    append(name: string, value: any, options?: any): any;
+  }
+
+  interface GenericHTMLFormElement {
+    name: string;
+    method: string;
+    submit(): void;
+  }
+
+  interface AxiosStatic extends AxiosInstance {
+    create(config?: CreateAxiosDefaults): AxiosInstance;
+    Cancel: CancelStatic;
+    CancelToken: CancelTokenStatic;
+    Axios: typeof Axios;
+    AxiosError: typeof AxiosError;
+    CanceledError: typeof CanceledError;
+    HttpStatusCode: typeof HttpStatusCode;
+    readonly VERSION: string;
+    isCancel(value: any): value is Cancel;
+    all<T>(values: Array<T | Promise<T>>): Promise<T[]>;
+    spread<T, R>(callback: (...args: T[]) => R): (array: T[]) => R;
+    isAxiosError<T = any, D = any>(payload: any): payload is AxiosError<T, D>;
+    toFormData(sourceObj: object, targetFormData?: GenericFormData, options?: FormSerializerOptions): GenericFormData;
+    formToJSON(form: GenericFormData|GenericHTMLFormElement): object;
+    getAdapter(adapters: AxiosAdapterConfig | AxiosAdapterConfig[] | undefined): AxiosAdapter;
+    AxiosHeaders: typeof AxiosHeaders;
+  }
+}
+
+declare const axios: axios.AxiosStatic;
+
+export = axios;
diff --git a/backend/node_modules/axios/index.d.ts b/backend/node_modules/axios/index.d.ts
new file mode 100644
index 0000000..21bb581
--- /dev/null
+++ b/backend/node_modules/axios/index.d.ts
@@ -0,0 +1,569 @@
+// TypeScript Version: 4.7
+export type AxiosHeaderValue = AxiosHeaders | string | string[] | number | boolean | null;
+
+interface RawAxiosHeaders {
+  [key: string]: AxiosHeaderValue;
+}
+
+type MethodsHeaders = Partial<{
+  [Key in Method as Lowercase<Key>]: AxiosHeaders;
+} & {common: AxiosHeaders}>;
+
+type AxiosHeaderMatcher = string | RegExp | ((this: AxiosHeaders, value: string, name: string) => boolean);
+
+type AxiosHeaderParser = (this: AxiosHeaders, value: AxiosHeaderValue, header: string) => any;
+
+export class AxiosHeaders {
+  constructor(
+      headers?: RawAxiosHeaders | AxiosHeaders | string
+  );
+
+  [key: string]: any;
+
+  set(headerName?: string, value?: AxiosHeaderValue, rewrite?: boolean | AxiosHeaderMatcher): AxiosHeaders;
+  set(headers?: RawAxiosHeaders | AxiosHeaders | string, rewrite?: boolean): AxiosHeaders;
+
+  get(headerName: string, parser: RegExp): RegExpExecArray | null;
+  get(headerName: string, matcher?: true | AxiosHeaderParser): AxiosHeaderValue;
+
+  has(header: string, matcher?: AxiosHeaderMatcher): boolean;
+
+  delete(header: string | string[], matcher?: AxiosHeaderMatcher): boolean;
+
+  clear(matcher?: AxiosHeaderMatcher): boolean;
+
+  normalize(format: boolean): AxiosHeaders;
+
+  concat(...targets: Array<AxiosHeaders | RawAxiosHeaders | string | undefined | null>): AxiosHeaders;
+
+  toJSON(asStrings?: boolean): RawAxiosHeaders;
+
+  static from(thing?: AxiosHeaders | RawAxiosHeaders | string): AxiosHeaders;
+
+  static accessor(header: string | string[]): AxiosHeaders;
+
+  static concat(...targets: Array<AxiosHeaders | RawAxiosHeaders | string | undefined | null>): AxiosHeaders;
+
+  setContentType(value: ContentType, rewrite?: boolean | AxiosHeaderMatcher): AxiosHeaders;
+  getContentType(parser?: RegExp): RegExpExecArray | null;
+  getContentType(matcher?: AxiosHeaderMatcher): AxiosHeaderValue;
+  hasContentType(matcher?: AxiosHeaderMatcher): boolean;
+
+  setContentLength(value: AxiosHeaderValue, rewrite?: boolean | AxiosHeaderMatcher): AxiosHeaders;
+  getContentLength(parser?: RegExp): RegExpExecArray | null;
+  getContentLength(matcher?: AxiosHeaderMatcher): AxiosHeaderValue;
+  hasContentLength(matcher?: AxiosHeaderMatcher): boolean;
+
+  setAccept(value: AxiosHeaderValue, rewrite?: boolean | AxiosHeaderMatcher): AxiosHeaders;
+  getAccept(parser?: RegExp): RegExpExecArray | null;
+  getAccept(matcher?: AxiosHeaderMatcher): AxiosHeaderValue;
+  hasAccept(matcher?: AxiosHeaderMatcher): boolean;
+
+  setUserAgent(value: AxiosHeaderValue, rewrite?: boolean | AxiosHeaderMatcher): AxiosHeaders;
+  getUserAgent(parser?: RegExp): RegExpExecArray | null;
+  getUserAgent(matcher?: AxiosHeaderMatcher): AxiosHeaderValue;
+  hasUserAgent(matcher?: AxiosHeaderMatcher): boolean;
+
+  setContentEncoding(value: AxiosHeaderValue, rewrite?: boolean | AxiosHeaderMatcher): AxiosHeaders;
+  getContentEncoding(parser?: RegExp): RegExpExecArray | null;
+  getContentEncoding(matcher?: AxiosHeaderMatcher): AxiosHeaderValue;
+  hasContentEncoding(matcher?: AxiosHeaderMatcher): boolean;
+
+  setAuthorization(value: AxiosHeaderValue, rewrite?: boolean | AxiosHeaderMatcher): AxiosHeaders;
+  getAuthorization(parser?: RegExp): RegExpExecArray | null;
+  getAuthorization(matcher?: AxiosHeaderMatcher): AxiosHeaderValue;
+  hasAuthorization(matcher?: AxiosHeaderMatcher): boolean;
+
+  [Symbol.iterator](): IterableIterator<[string, AxiosHeaderValue]>;
+}
+
+type CommonRequestHeadersList = 'Accept' | 'Content-Length' | 'User-Agent' | 'Content-Encoding' | 'Authorization';
+
+type ContentType = AxiosHeaderValue | 'text/html' | 'text/plain' | 'multipart/form-data' | 'application/json' | 'application/x-www-form-urlencoded' | 'application/octet-stream';
+
+export type RawAxiosRequestHeaders = Partial<RawAxiosHeaders & {
+  [Key in CommonRequestHeadersList]: AxiosHeaderValue;
+} & {
+  'Content-Type': ContentType
+}>;
+
+export type AxiosRequestHeaders = RawAxiosRequestHeaders & AxiosHeaders;
+
+type CommonResponseHeadersList = 'Server' | 'Content-Type' | 'Content-Length' | 'Cache-Control'| 'Content-Encoding';
+
+type RawCommonResponseHeaders = {
+  [Key in CommonResponseHeadersList]: AxiosHeaderValue;
+} & {
+  "set-cookie": string[];
+};
+
+export type RawAxiosResponseHeaders = Partial<RawAxiosHeaders & RawCommonResponseHeaders>;
+
+export type AxiosResponseHeaders = RawAxiosResponseHeaders & AxiosHeaders;
+
+export interface AxiosRequestTransformer {
+  (this: InternalAxiosRequestConfig, data: any, headers: AxiosRequestHeaders): any;
+}
+
+export interface AxiosResponseTransformer {
+  (this: InternalAxiosRequestConfig, data: any, headers: AxiosResponseHeaders, status?: number): any;
+}
+
+export interface AxiosAdapter {
+  (config: InternalAxiosRequestConfig): AxiosPromise;
+}
+
+export interface AxiosBasicCredentials {
+  username: string;
+  password: string;
+}
+
+export interface AxiosProxyConfig {
+  host: string;
+  port: number;
+  auth?: AxiosBasicCredentials;
+  protocol?: string;
+}
+
+export enum HttpStatusCode {
+  Continue = 100,
+  SwitchingProtocols = 101,
+  Processing = 102,
+  EarlyHints = 103,
+  Ok = 200,
+  Created = 201,
+  Accepted = 202,
+  NonAuthoritativeInformation = 203,
+  NoContent = 204,
+  ResetContent = 205,
+  PartialContent = 206,
+  MultiStatus = 207,
+  AlreadyReported = 208,
+  ImUsed = 226,
+  MultipleChoices = 300,
+  MovedPermanently = 301,
+  Found = 302,
+  SeeOther = 303,
+  NotModified = 304,
+  UseProxy = 305,
+  Unused = 306,
+  TemporaryRedirect = 307,
+  PermanentRedirect = 308,
+  BadRequest = 400,
+  Unauthorized = 401,
+  PaymentRequired = 402,
+  Forbidden = 403,
+  NotFound = 404,
+  MethodNotAllowed = 405,
+  NotAcceptable = 406,
+  ProxyAuthenticationRequired = 407,
+  RequestTimeout = 408,
+  Conflict = 409,
+  Gone = 410,
+  LengthRequired = 411,
+  PreconditionFailed = 412,
+  PayloadTooLarge = 413,
+  UriTooLong = 414,
+  UnsupportedMediaType = 415,
+  RangeNotSatisfiable = 416,
+  ExpectationFailed = 417,
+  ImATeapot = 418,
+  MisdirectedRequest = 421,
+  UnprocessableEntity = 422,
+  Locked = 423,
+  FailedDependency = 424,
+  TooEarly = 425,
+  UpgradeRequired = 426,
+  PreconditionRequired = 428,
+  TooManyRequests = 429,
+  RequestHeaderFieldsTooLarge = 431,
+  UnavailableForLegalReasons = 451,
+  InternalServerError = 500,
+  NotImplemented = 501,
+  BadGateway = 502,
+  ServiceUnavailable = 503,
+  GatewayTimeout = 504,
+  HttpVersionNotSupported = 505,
+  VariantAlsoNegotiates = 506,
+  InsufficientStorage = 507,
+  LoopDetected = 508,
+  NotExtended = 510,
+  NetworkAuthenticationRequired = 511,
+}
+
+export type Method =
+    | 'get' | 'GET'
+    | 'delete' | 'DELETE'
+    | 'head' | 'HEAD'
+    | 'options' | 'OPTIONS'
+    | 'post' | 'POST'
+    | 'put' | 'PUT'
+    | 'patch' | 'PATCH'
+    | 'purge' | 'PURGE'
+    | 'link' | 'LINK'
+    | 'unlink' | 'UNLINK';
+
+export type ResponseType =
+    | 'arraybuffer'
+    | 'blob'
+    | 'document'
+    | 'json'
+    | 'text'
+    | 'stream'
+    | 'formdata';
+
+export type responseEncoding =
+    | 'ascii' | 'ASCII'
+    | 'ansi' | 'ANSI'
+    | 'binary' | 'BINARY'
+    | 'base64' | 'BASE64'
+    | 'base64url' | 'BASE64URL'
+    | 'hex' | 'HEX'
+    | 'latin1' | 'LATIN1'
+    | 'ucs-2' | 'UCS-2'
+    | 'ucs2' | 'UCS2'
+    | 'utf-8' | 'UTF-8'
+    | 'utf8' | 'UTF8'
+    | 'utf16le' | 'UTF16LE';
+
+export interface TransitionalOptions {
+  silentJSONParsing?: boolean;
+  forcedJSONParsing?: boolean;
+  clarifyTimeoutError?: boolean;
+}
+
+export interface GenericAbortSignal {
+  readonly aborted: boolean;
+  onabort?: ((...args: any) => any) | null;
+  addEventListener?: (...args: any) => any;
+  removeEventListener?: (...args: any) => any;
+}
+
+export interface FormDataVisitorHelpers {
+  defaultVisitor: SerializerVisitor;
+  convertValue: (value: any) => any;
+  isVisitable: (value: any) => boolean;
+}
+
+export interface SerializerVisitor {
+  (
+      this: GenericFormData,
+      value: any,
+      key: string | number,
+      path: null | Array<string | number>,
+      helpers: FormDataVisitorHelpers
+  ): boolean;
+}
+
+export interface SerializerOptions {
+  visitor?: SerializerVisitor;
+  dots?: boolean;
+  metaTokens?: boolean;
+  indexes?: boolean | null;
+}
+
+// tslint:disable-next-line
+export interface FormSerializerOptions extends SerializerOptions {
+}
+
+export interface ParamEncoder {
+  (value: any, defaultEncoder: (value: any) => any): any;
+}
+
+export interface CustomParamsSerializer {
+  (params: Record<string, any>, options?: ParamsSerializerOptions): string;
+}
+
+export interface ParamsSerializerOptions extends SerializerOptions {
+  encode?: ParamEncoder;
+  serialize?: CustomParamsSerializer;
+}
+
+type MaxUploadRate = number;
+
+type MaxDownloadRate = number;
+
+type BrowserProgressEvent = any;
+
+export interface AxiosProgressEvent {
+  loaded: number;
+  total?: number;
+  progress?: number;
+  bytes: number;
+  rate?: number;
+  estimated?: number;
+  upload?: boolean;
+  download?: boolean;
+  event?: BrowserProgressEvent;
+  lengthComputable: boolean;
+}
+
+type Milliseconds = number;
+
+type AxiosAdapterName = 'fetch' | 'xhr' | 'http' | string;
+
+type AxiosAdapterConfig = AxiosAdapter | AxiosAdapterName;
+
+export type AddressFamily = 4 | 6 | undefined;
+
+export interface LookupAddressEntry {
+  address: string;
+  family?: AddressFamily;
+}
+
+export type LookupAddress = string | LookupAddressEntry;
+
+export interface AxiosRequestConfig<D = any> {
+  url?: string;
+  method?: Method | string;
+  baseURL?: string;
+  transformRequest?: AxiosRequestTransformer | AxiosRequestTransformer[];
+  transformResponse?: AxiosResponseTransformer | AxiosResponseTransformer[];
+  headers?: (RawAxiosRequestHeaders & MethodsHeaders) | AxiosHeaders;
+  params?: any;
+  paramsSerializer?: ParamsSerializerOptions | CustomParamsSerializer;
+  data?: D;
+  timeout?: Milliseconds;
+  timeoutErrorMessage?: string;
+  withCredentials?: boolean;
+  adapter?: AxiosAdapterConfig | AxiosAdapterConfig[];
+  auth?: AxiosBasicCredentials;
+  responseType?: ResponseType;
+  responseEncoding?: responseEncoding | string;
+  xsrfCookieName?: string;
+  xsrfHeaderName?: string;
+  onUploadProgress?: (progressEvent: AxiosProgressEvent) => void;
+  onDownloadProgress?: (progressEvent: AxiosProgressEvent) => void;
+  maxContentLength?: number;
+  validateStatus?: ((status: number) => boolean) | null;
+  maxBodyLength?: number;
+  maxRedirects?: number;
+  maxRate?: number | [MaxUploadRate, MaxDownloadRate];
+  beforeRedirect?: (options: Record<string, any>, responseDetails: {headers: Record<string, string>, statusCode: HttpStatusCode}) => void;
+  socketPath?: string | null;
+  transport?: any;
+  httpAgent?: any;
+  httpsAgent?: any;
+  proxy?: AxiosProxyConfig | false;
+  cancelToken?: CancelToken;
+  decompress?: boolean;
+  transitional?: TransitionalOptions;
+  signal?: GenericAbortSignal;
+  insecureHTTPParser?: boolean;
+  env?: {
+    FormData?: new (...args: any[]) => object;
+  };
+  formSerializer?: FormSerializerOptions;
+  family?: AddressFamily;
+  lookup?: ((hostname: string, options: object, cb: (err: Error | null, address: LookupAddress | LookupAddress[], family?: AddressFamily) => void) => void) |
+      ((hostname: string, options: object) => Promise<[address: LookupAddressEntry | LookupAddressEntry[], family?: AddressFamily] | LookupAddress>);
+  withXSRFToken?: boolean | ((config: InternalAxiosRequestConfig) => boolean | undefined);
+  fetchOptions?: Record<string, any>;
+}
+
+// Alias
+export type RawAxiosRequestConfig<D = any> = AxiosRequestConfig<D>;
+
+export interface InternalAxiosRequestConfig<D = any> extends AxiosRequestConfig<D> {
+  headers: AxiosRequestHeaders;
+}
+
+export interface HeadersDefaults {
+  common: RawAxiosRequestHeaders;
+  delete: RawAxiosRequestHeaders;
+  get: RawAxiosRequestHeaders;
+  head: RawAxiosRequestHeaders;
+  post: RawAxiosRequestHeaders;
+  put: RawAxiosRequestHeaders;
+  patch: RawAxiosRequestHeaders;
+  options?: RawAxiosRequestHeaders;
+  purge?: RawAxiosRequestHeaders;
+  link?: RawAxiosRequestHeaders;
+  unlink?: RawAxiosRequestHeaders;
+}
+
+export interface AxiosDefaults<D = any> extends Omit<AxiosRequestConfig<D>, 'headers'> {
+  headers: HeadersDefaults;
+}
+
+export interface CreateAxiosDefaults<D = any> extends Omit<AxiosRequestConfig<D>, 'headers'> {
+  headers?: RawAxiosRequestHeaders | AxiosHeaders | Partial<HeadersDefaults>;
+}
+
+export interface AxiosResponse<T = any, D = any> {
+  data: T;
+  status: number;
+  statusText: string;
+  headers: RawAxiosResponseHeaders | AxiosResponseHeaders;
+  config: InternalAxiosRequestConfig<D>;
+  request?: any;
+}
+
+export class AxiosError<T = unknown, D = any> extends Error {
+  constructor(
+      message?: string,
+      code?: string,
+      config?: InternalAxiosRequestConfig<D>,
+      request?: any,
+      response?: AxiosResponse<T, D>
+  );
+
+  config?: InternalAxiosRequestConfig<D>;
+  code?: string;
+  request?: any;
+  response?: AxiosResponse<T, D>;
+  isAxiosError: boolean;
+  status?: number;
+  toJSON: () => object;
+  cause?: Error;
+  static from<T = unknown, D = any>(
+    error: Error | unknown,
+    code?: string,
+    config?: InternalAxiosRequestConfig<D>,
+    request?: any,
+    response?: AxiosResponse<T, D>,
+    customProps?: object,
+): AxiosError<T, D>;
+  static readonly ERR_FR_TOO_MANY_REDIRECTS = "ERR_FR_TOO_MANY_REDIRECTS";
+  static readonly ERR_BAD_OPTION_VALUE = "ERR_BAD_OPTION_VALUE";
+  static readonly ERR_BAD_OPTION = "ERR_BAD_OPTION";
+  static readonly ERR_NETWORK = "ERR_NETWORK";
+  static readonly ERR_DEPRECATED = "ERR_DEPRECATED";
+  static readonly ERR_BAD_RESPONSE = "ERR_BAD_RESPONSE";
+  static readonly ERR_BAD_REQUEST = "ERR_BAD_REQUEST";
+  static readonly ERR_NOT_SUPPORT = "ERR_NOT_SUPPORT";
+  static readonly ERR_INVALID_URL = "ERR_INVALID_URL";
+  static readonly ERR_CANCELED = "ERR_CANCELED";
+  static readonly ECONNABORTED = "ECONNABORTED";
+  static readonly ETIMEDOUT = "ETIMEDOUT";
+}
+
+export class CanceledError<T> extends AxiosError<T> {
+}
+
+export type AxiosPromise<T = any> = Promise<AxiosResponse<T>>;
+
+export interface CancelStatic {
+  new (message?: string): Cancel;
+}
+
+export interface Cancel {
+  message: string | undefined;
+}
+
+export interface Canceler {
+  (message?: string, config?: AxiosRequestConfig, request?: any): void;
+}
+
+export interface CancelTokenStatic {
+  new (executor: (cancel: Canceler) => void): CancelToken;
+  source(): CancelTokenSource;
+}
+
+export interface CancelToken {
+  promise: Promise<Cancel>;
+  reason?: Cancel;
+  throwIfRequested(): void;
+}
+
+export interface CancelTokenSource {
+  token: CancelToken;
+  cancel: Canceler;
+}
+
+export interface AxiosInterceptorOptions {
+  synchronous?: boolean;
+  runWhen?: (config: InternalAxiosRequestConfig) => boolean;
+}
+
+type AxiosRequestInterceptorUse<T> = (onFulfilled?: ((value: T) => T | Promise<T>) | null, onRejected?: ((error: any) => any) | null, options?: AxiosInterceptorOptions) => number;
+
+type AxiosResponseInterceptorUse<T> = (onFulfilled?: ((value: T) => T | Promise<T>) | null, onRejected?: ((error: any) => any) | null) => number;
+
+export interface AxiosInterceptorManager<V> {
+  use: V extends AxiosResponse ? AxiosResponseInterceptorUse<V> : AxiosRequestInterceptorUse<V>;
+  eject(id: number): void;
+  clear(): void;
+}
+
+export class Axios {
+  constructor(config?: AxiosRequestConfig);
+  defaults: AxiosDefaults;
+  interceptors: {
+    request: AxiosInterceptorManager<InternalAxiosRequestConfig>;
+    response: AxiosInterceptorManager<AxiosResponse>;
+  };
+  getUri(config?: AxiosRequestConfig): string;
+  request<T = any, R = AxiosResponse<T>, D = any>(config: AxiosRequestConfig<D>): Promise<R>;
+  get<T = any, R = AxiosResponse<T>, D = any>(url: string, config?: AxiosRequestConfig<D>): Promise<R>;
+  delete<T = any, R = AxiosResponse<T>, D = any>(url: string, config?: AxiosRequestConfig<D>): Promise<R>;
+  head<T = any, R = AxiosResponse<T>, D = any>(url: string, config?: AxiosRequestConfig<D>): Promise<R>;
+  options<T = any, R = AxiosResponse<T>, D = any>(url: string, config?: AxiosRequestConfig<D>): Promise<R>;
+  post<T = any, R = AxiosResponse<T>, D = any>(url: string, data?: D, config?: AxiosRequestConfig<D>): Promise<R>;
+  put<T = any, R = AxiosResponse<T>, D = any>(url: string, data?: D, config?: AxiosRequestConfig<D>): Promise<R>;
+  patch<T = any, R = AxiosResponse<T>, D = any>(url: string, data?: D, config?: AxiosRequestConfig<D>): Promise<R>;
+  postForm<T = any, R = AxiosResponse<T>, D = any>(url: string, data?: D, config?: AxiosRequestConfig<D>): Promise<R>;
+  putForm<T = any, R = AxiosResponse<T>, D = any>(url: string, data?: D, config?: AxiosRequestConfig<D>): Promise<R>;
+  patchForm<T = any, R = AxiosResponse<T>, D = any>(url: string, data?: D, config?: AxiosRequestConfig<D>): Promise<R>;
+}
+
+export interface AxiosInstance extends Axios {
+  <T = any, R = AxiosResponse<T>, D = any>(config: AxiosRequestConfig<D>): Promise<R>;
+  <T = any, R = AxiosResponse<T>, D = any>(url: string, config?: AxiosRequestConfig<D>): Promise<R>;
+
+  defaults: Omit<AxiosDefaults, 'headers'> & {
+    headers: HeadersDefaults & {
+      [key: string]: AxiosHeaderValue
+    }
+  };
+}
+
+export interface GenericFormData {
+  append(name: string, value: any, options?: any): any;
+}
+
+export interface GenericHTMLFormElement {
+  name: string;
+  method: string;
+  submit(): void;
+}
+
+export function getAdapter(adapters: AxiosAdapterConfig | AxiosAdapterConfig[] | undefined): AxiosAdapter;
+
+export function toFormData(sourceObj: object, targetFormData?: GenericFormData, options?: FormSerializerOptions): GenericFormData;
+
+export function formToJSON(form: GenericFormData|GenericHTMLFormElement): object;
+
+export function isAxiosError<T = any, D = any>(payload: any): payload is AxiosError<T, D>;
+
+export function spread<T, R>(callback: (...args: T[]) => R): (array: T[]) => R;
+
+export function isCancel(value: any): value is Cancel;
+
+export function all<T>(values: Array<T | Promise<T>>): Promise<T[]>;
+
+export function mergeConfig<D = any>(config1: AxiosRequestConfig<D>, config2: AxiosRequestConfig<D>): AxiosRequestConfig<D>;
+
+export interface AxiosStatic extends AxiosInstance {
+  create(config?: CreateAxiosDefaults): AxiosInstance;
+  Cancel: CancelStatic;
+  CancelToken: CancelTokenStatic;
+  Axios: typeof Axios;
+  AxiosError: typeof AxiosError;
+  HttpStatusCode: typeof HttpStatusCode;
+  readonly VERSION: string;
+  isCancel: typeof isCancel;
+  all: typeof all;
+  spread: typeof spread;
+  isAxiosError: typeof isAxiosError;
+  toFormData: typeof toFormData;
+  formToJSON: typeof formToJSON;
+  getAdapter: typeof getAdapter;
+  CanceledError: typeof CanceledError;
+  AxiosHeaders: typeof AxiosHeaders;
+  mergeConfig: typeof mergeConfig;
+}
+
+declare const axios: AxiosStatic;
+
+export default axios;
diff --git a/backend/node_modules/axios/index.js b/backend/node_modules/axios/index.js
new file mode 100644
index 0000000..fba3990
--- /dev/null
+++ b/backend/node_modules/axios/index.js
@@ -0,0 +1,43 @@
+import axios from './lib/axios.js';
+
+// This module is intended to unwrap Axios default export as named.
+// Keep top-level export same with static properties
+// so that it can keep same with es module or cjs
+const {
+  Axios,
+  AxiosError,
+  CanceledError,
+  isCancel,
+  CancelToken,
+  VERSION,
+  all,
+  Cancel,
+  isAxiosError,
+  spread,
+  toFormData,
+  AxiosHeaders,
+  HttpStatusCode,
+  formToJSON,
+  getAdapter,
+  mergeConfig
+} = axios;
+
+export {
+  axios as default,
+  Axios,
+  AxiosError,
+  CanceledError,
+  isCancel,
+  CancelToken,
+  VERSION,
+  all,
+  Cancel,
+  isAxiosError,
+  spread,
+  toFormData,
+  AxiosHeaders,
+  HttpStatusCode,
+  formToJSON,
+  getAdapter,
+  mergeConfig
+}
diff --git a/backend/node_modules/axios/lib/adapters/README.md b/backend/node_modules/axios/lib/adapters/README.md
new file mode 100644
index 0000000..68f1118
--- /dev/null
+++ b/backend/node_modules/axios/lib/adapters/README.md
@@ -0,0 +1,37 @@
+# axios // adapters
+
+The modules under `adapters/` are modules that handle dispatching a request and settling a returned `Promise` once a response is received.
+
+## Example
+
+```js
+var settle = require('./../core/settle');
+
+module.exports = function myAdapter(config) {
+  // At this point:
+  //  - config has been merged with defaults
+  //  - request transformers have already run
+  //  - request interceptors have already run
+  
+  // Make the request using config provided
+  // Upon response settle the Promise
+
+  return new Promise(function(resolve, reject) {
+  
+    var response = {
+      data: responseData,
+      status: request.status,
+      statusText: request.statusText,
+      headers: responseHeaders,
+      config: config,
+      request: request
+    };
+
+    settle(resolve, reject, response);
+
+    // From here:
+    //  - response transformers will run
+    //  - response interceptors will run
+  });
+}
+```
diff --git a/backend/node_modules/axios/lib/adapters/adapters.js b/backend/node_modules/axios/lib/adapters/adapters.js
new file mode 100644
index 0000000..b466dd5
--- /dev/null
+++ b/backend/node_modules/axios/lib/adapters/adapters.js
@@ -0,0 +1,79 @@
+import utils from '../utils.js';
+import httpAdapter from './http.js';
+import xhrAdapter from './xhr.js';
+import fetchAdapter from './fetch.js';
+import AxiosError from "../core/AxiosError.js";
+
+const knownAdapters = {
+  http: httpAdapter,
+  xhr: xhrAdapter,
+  fetch: fetchAdapter
+}
+
+utils.forEach(knownAdapters, (fn, value) => {
+  if (fn) {
+    try {
+      Object.defineProperty(fn, 'name', {value});
+    } catch (e) {
+      // eslint-disable-next-line no-empty
+    }
+    Object.defineProperty(fn, 'adapterName', {value});
+  }
+});
+
+const renderReason = (reason) => `- ${reason}`;
+
+const isResolvedHandle = (adapter) => utils.isFunction(adapter) || adapter === null || adapter === false;
+
+export default {
+  getAdapter: (adapters) => {
+    adapters = utils.isArray(adapters) ? adapters : [adapters];
+
+    const {length} = adapters;
+    let nameOrAdapter;
+    let adapter;
+
+    const rejectedReasons = {};
+
+    for (let i = 0; i < length; i++) {
+      nameOrAdapter = adapters[i];
+      let id;
+
+      adapter = nameOrAdapter;
+
+      if (!isResolvedHandle(nameOrAdapter)) {
+        adapter = knownAdapters[(id = String(nameOrAdapter)).toLowerCase()];
+
+        if (adapter === undefined) {
+          throw new AxiosError(`Unknown adapter '${id}'`);
+        }
+      }
+
+      if (adapter) {
+        break;
+      }
+
+      rejectedReasons[id || '#' + i] = adapter;
+    }
+
+    if (!adapter) {
+
+      const reasons = Object.entries(rejectedReasons)
+        .map(([id, state]) => `adapter ${id} ` +
+          (state === false ? 'is not supported by the environment' : 'is not available in the build')
+        );
+
+      let s = length ?
+        (reasons.length > 1 ? 'since :\n' + reasons.map(renderReason).join('\n') : ' ' + renderReason(reasons[0])) :
+        'as no adapter specified';
+
+      throw new AxiosError(
+        `There is no suitable adapter to dispatch the request ` + s,
+        'ERR_NOT_SUPPORT'
+      );
+    }
+
+    return adapter;
+  },
+  adapters: knownAdapters
+}
diff --git a/backend/node_modules/axios/lib/adapters/fetch.js b/backend/node_modules/axios/lib/adapters/fetch.js
new file mode 100644
index 0000000..f871a05
--- /dev/null
+++ b/backend/node_modules/axios/lib/adapters/fetch.js
@@ -0,0 +1,229 @@
+import platform from "../platform/index.js";
+import utils from "../utils.js";
+import AxiosError from "../core/AxiosError.js";
+import composeSignals from "../helpers/composeSignals.js";
+import {trackStream} from "../helpers/trackStream.js";
+import AxiosHeaders from "../core/AxiosHeaders.js";
+import {progressEventReducer, progressEventDecorator, asyncDecorator} from "../helpers/progressEventReducer.js";
+import resolveConfig from "../helpers/resolveConfig.js";
+import settle from "../core/settle.js";
+
+const isFetchSupported = typeof fetch === 'function' && typeof Request === 'function' && typeof Response === 'function';
+const isReadableStreamSupported = isFetchSupported && typeof ReadableStream === 'function';
+
+// used only inside the fetch adapter
+const encodeText = isFetchSupported && (typeof TextEncoder === 'function' ?
+    ((encoder) => (str) => encoder.encode(str))(new TextEncoder()) :
+    async (str) => new Uint8Array(await new Response(str).arrayBuffer())
+);
+
+const test = (fn, ...args) => {
+  try {
+    return !!fn(...args);
+  } catch (e) {
+    return false
+  }
+}
+
+const supportsRequestStream = isReadableStreamSupported && test(() => {
+  let duplexAccessed = false;
+
+  const hasContentType = new Request(platform.origin, {
+    body: new ReadableStream(),
+    method: 'POST',
+    get duplex() {
+      duplexAccessed = true;
+      return 'half';
+    },
+  }).headers.has('Content-Type');
+
+  return duplexAccessed && !hasContentType;
+});
+
+const DEFAULT_CHUNK_SIZE = 64 * 1024;
+
+const supportsResponseStream = isReadableStreamSupported &&
+  test(() => utils.isReadableStream(new Response('').body));
+
+
+const resolvers = {
+  stream: supportsResponseStream && ((res) => res.body)
+};
+
+isFetchSupported && (((res) => {
+  ['text', 'arrayBuffer', 'blob', 'formData', 'stream'].forEach(type => {
+    !resolvers[type] && (resolvers[type] = utils.isFunction(res[type]) ? (res) => res[type]() :
+      (_, config) => {
+        throw new AxiosError(`Response type '${type}' is not supported`, AxiosError.ERR_NOT_SUPPORT, config);
+      })
+  });
+})(new Response));
+
+const getBodyLength = async (body) => {
+  if (body == null) {
+    return 0;
+  }
+
+  if(utils.isBlob(body)) {
+    return body.size;
+  }
+
+  if(utils.isSpecCompliantForm(body)) {
+    const _request = new Request(platform.origin, {
+      method: 'POST',
+      body,
+    });
+    return (await _request.arrayBuffer()).byteLength;
+  }
+
+  if(utils.isArrayBufferView(body) || utils.isArrayBuffer(body)) {
+    return body.byteLength;
+  }
+
+  if(utils.isURLSearchParams(body)) {
+    body = body + '';
+  }
+
+  if(utils.isString(body)) {
+    return (await encodeText(body)).byteLength;
+  }
+}
+
+const resolveBodyLength = async (headers, body) => {
+  const length = utils.toFiniteNumber(headers.getContentLength());
+
+  return length == null ? getBodyLength(body) : length;
+}
+
+export default isFetchSupported && (async (config) => {
+  let {
+    url,
+    method,
+    data,
+    signal,
+    cancelToken,
+    timeout,
+    onDownloadProgress,
+    onUploadProgress,
+    responseType,
+    headers,
+    withCredentials = 'same-origin',
+    fetchOptions
+  } = resolveConfig(config);
+
+  responseType = responseType ? (responseType + '').toLowerCase() : 'text';
+
+  let composedSignal = composeSignals([signal, cancelToken && cancelToken.toAbortSignal()], timeout);
+
+  let request;
+
+  const unsubscribe = composedSignal && composedSignal.unsubscribe && (() => {
+      composedSignal.unsubscribe();
+  });
+
+  let requestContentLength;
+
+  try {
+    if (
+      onUploadProgress && supportsRequestStream && method !== 'get' && method !== 'head' &&
+      (requestContentLength = await resolveBodyLength(headers, data)) !== 0
+    ) {
+      let _request = new Request(url, {
+        method: 'POST',
+        body: data,
+        duplex: "half"
+      });
+
+      let contentTypeHeader;
+
+      if (utils.isFormData(data) && (contentTypeHeader = _request.headers.get('content-type'))) {
+        headers.setContentType(contentTypeHeader)
+      }
+
+      if (_request.body) {
+        const [onProgress, flush] = progressEventDecorator(
+          requestContentLength,
+          progressEventReducer(asyncDecorator(onUploadProgress))
+        );
+
+        data = trackStream(_request.body, DEFAULT_CHUNK_SIZE, onProgress, flush);
+      }
+    }
+
+    if (!utils.isString(withCredentials)) {
+      withCredentials = withCredentials ? 'include' : 'omit';
+    }
+
+    // Cloudflare Workers throws when credentials are defined
+    // see https://github.com/cloudflare/workerd/issues/902
+    const isCredentialsSupported = "credentials" in Request.prototype;
+    request = new Request(url, {
+      ...fetchOptions,
+      signal: composedSignal,
+      method: method.toUpperCase(),
+      headers: headers.normalize().toJSON(),
+      body: data,
+      duplex: "half",
+      credentials: isCredentialsSupported ? withCredentials : undefined
+    });
+
+    let response = await fetch(request);
+
+    const isStreamResponse = supportsResponseStream && (responseType === 'stream' || responseType === 'response');
+
+    if (supportsResponseStream && (onDownloadProgress || (isStreamResponse && unsubscribe))) {
+      const options = {};
+
+      ['status', 'statusText', 'headers'].forEach(prop => {
+        options[prop] = response[prop];
+      });
+
+      const responseContentLength = utils.toFiniteNumber(response.headers.get('content-length'));
+
+      const [onProgress, flush] = onDownloadProgress && progressEventDecorator(
+        responseContentLength,
+        progressEventReducer(asyncDecorator(onDownloadProgress), true)
+      ) || [];
+
+      response = new Response(
+        trackStream(response.body, DEFAULT_CHUNK_SIZE, onProgress, () => {
+          flush && flush();
+          unsubscribe && unsubscribe();
+        }),
+        options
+      );
+    }
+
+    responseType = responseType || 'text';
+
+    let responseData = await resolvers[utils.findKey(resolvers, responseType) || 'text'](response, config);
+
+    !isStreamResponse && unsubscribe && unsubscribe();
+
+    return await new Promise((resolve, reject) => {
+      settle(resolve, reject, {
+        data: responseData,
+        headers: AxiosHeaders.from(response.headers),
+        status: response.status,
+        statusText: response.statusText,
+        config,
+        request
+      })
+    })
+  } catch (err) {
+    unsubscribe && unsubscribe();
+
+    if (err && err.name === 'TypeError' && /fetch/i.test(err.message)) {
+      throw Object.assign(
+        new AxiosError('Network Error', AxiosError.ERR_NETWORK, config, request),
+        {
+          cause: err.cause || err
+        }
+      )
+    }
+
+    throw AxiosError.from(err, err && err.code, config, request);
+  }
+});
+
+
diff --git a/backend/node_modules/axios/lib/adapters/http.js b/backend/node_modules/axios/lib/adapters/http.js
new file mode 100644
index 0000000..da0a42d
--- /dev/null
+++ b/backend/node_modules/axios/lib/adapters/http.js
@@ -0,0 +1,695 @@
+'use strict';
+
+import utils from './../utils.js';
+import settle from './../core/settle.js';
+import buildFullPath from '../core/buildFullPath.js';
+import buildURL from './../helpers/buildURL.js';
+import proxyFromEnv from 'proxy-from-env';
+import http from 'http';
+import https from 'https';
+import util from 'util';
+import followRedirects from 'follow-redirects';
+import zlib from 'zlib';
+import {VERSION} from '../env/data.js';
+import transitionalDefaults from '../defaults/transitional.js';
+import AxiosError from '../core/AxiosError.js';
+import CanceledError from '../cancel/CanceledError.js';
+import platform from '../platform/index.js';
+import fromDataURI from '../helpers/fromDataURI.js';
+import stream from 'stream';
+import AxiosHeaders from '../core/AxiosHeaders.js';
+import AxiosTransformStream from '../helpers/AxiosTransformStream.js';
+import {EventEmitter} from 'events';
+import formDataToStream from "../helpers/formDataToStream.js";
+import readBlob from "../helpers/readBlob.js";
+import ZlibHeaderTransformStream from '../helpers/ZlibHeaderTransformStream.js';
+import callbackify from "../helpers/callbackify.js";
+import {progressEventReducer, progressEventDecorator, asyncDecorator} from "../helpers/progressEventReducer.js";
+
+const zlibOptions = {
+  flush: zlib.constants.Z_SYNC_FLUSH,
+  finishFlush: zlib.constants.Z_SYNC_FLUSH
+};
+
+const brotliOptions = {
+  flush: zlib.constants.BROTLI_OPERATION_FLUSH,
+  finishFlush: zlib.constants.BROTLI_OPERATION_FLUSH
+}
+
+const isBrotliSupported = utils.isFunction(zlib.createBrotliDecompress);
+
+const {http: httpFollow, https: httpsFollow} = followRedirects;
+
+const isHttps = /https:?/;
+
+const supportedProtocols = platform.protocols.map(protocol => {
+  return protocol + ':';
+});
+
+const flushOnFinish = (stream, [throttled, flush]) => {
+  stream
+    .on('end', flush)
+    .on('error', flush);
+
+  return throttled;
+}
+
+/**
+ * If the proxy or config beforeRedirects functions are defined, call them with the options
+ * object.
+ *
+ * @param {Object<string, any>} options - The options object that was passed to the request.
+ *
+ * @returns {Object<string, any>}
+ */
+function dispatchBeforeRedirect(options, responseDetails) {
+  if (options.beforeRedirects.proxy) {
+    options.beforeRedirects.proxy(options);
+  }
+  if (options.beforeRedirects.config) {
+    options.beforeRedirects.config(options, responseDetails);
+  }
+}
+
+/**
+ * If the proxy or config afterRedirects functions are defined, call them with the options
+ *
+ * @param {http.ClientRequestArgs} options
+ * @param {AxiosProxyConfig} configProxy configuration from Axios options object
+ * @param {string} location
+ *
+ * @returns {http.ClientRequestArgs}
+ */
+function setProxy(options, configProxy, location) {
+  let proxy = configProxy;
+  if (!proxy && proxy !== false) {
+    const proxyUrl = proxyFromEnv.getProxyForUrl(location);
+    if (proxyUrl) {
+      proxy = new URL(proxyUrl);
+    }
+  }
+  if (proxy) {
+    // Basic proxy authorization
+    if (proxy.username) {
+      proxy.auth = (proxy.username || '') + ':' + (proxy.password || '');
+    }
+
+    if (proxy.auth) {
+      // Support proxy auth object form
+      if (proxy.auth.username || proxy.auth.password) {
+        proxy.auth = (proxy.auth.username || '') + ':' + (proxy.auth.password || '');
+      }
+      const base64 = Buffer
+        .from(proxy.auth, 'utf8')
+        .toString('base64');
+      options.headers['Proxy-Authorization'] = 'Basic ' + base64;
+    }
+
+    options.headers.host = options.hostname + (options.port ? ':' + options.port : '');
+    const proxyHost = proxy.hostname || proxy.host;
+    options.hostname = proxyHost;
+    // Replace 'host' since options is not a URL object
+    options.host = proxyHost;
+    options.port = proxy.port;
+    options.path = location;
+    if (proxy.protocol) {
+      options.protocol = proxy.protocol.includes(':') ? proxy.protocol : `${proxy.protocol}:`;
+    }
+  }
+
+  options.beforeRedirects.proxy = function beforeRedirect(redirectOptions) {
+    // Configure proxy for redirected request, passing the original config proxy to apply
+    // the exact same logic as if the redirected request was performed by axios directly.
+    setProxy(redirectOptions, configProxy, redirectOptions.href);
+  };
+}
+
+const isHttpAdapterSupported = typeof process !== 'undefined' && utils.kindOf(process) === 'process';
+
+// temporary hotfix
+
+const wrapAsync = (asyncExecutor) => {
+  return new Promise((resolve, reject) => {
+    let onDone;
+    let isDone;
+
+    const done = (value, isRejected) => {
+      if (isDone) return;
+      isDone = true;
+      onDone && onDone(value, isRejected);
+    }
+
+    const _resolve = (value) => {
+      done(value);
+      resolve(value);
+    };
+
+    const _reject = (reason) => {
+      done(reason, true);
+      reject(reason);
+    }
+
+    asyncExecutor(_resolve, _reject, (onDoneHandler) => (onDone = onDoneHandler)).catch(_reject);
+  })
+};
+
+const resolveFamily = ({address, family}) => {
+  if (!utils.isString(address)) {
+    throw TypeError('address must be a string');
+  }
+  return ({
+    address,
+    family: family || (address.indexOf('.') < 0 ? 6 : 4)
+  });
+}
+
+const buildAddressEntry = (address, family) => resolveFamily(utils.isObject(address) ? address : {address, family});
+
+/*eslint consistent-return:0*/
+export default isHttpAdapterSupported && function httpAdapter(config) {
+  return wrapAsync(async function dispatchHttpRequest(resolve, reject, onDone) {
+    let {data, lookup, family} = config;
+    const {responseType, responseEncoding} = config;
+    const method = config.method.toUpperCase();
+    let isDone;
+    let rejected = false;
+    let req;
+
+    if (lookup) {
+      const _lookup = callbackify(lookup, (value) => utils.isArray(value) ? value : [value]);
+      // hotfix to support opt.all option which is required for node 20.x
+      lookup = (hostname, opt, cb) => {
+        _lookup(hostname, opt, (err, arg0, arg1) => {
+          if (err) {
+            return cb(err);
+          }
+
+          const addresses = utils.isArray(arg0) ? arg0.map(addr => buildAddressEntry(addr)) : [buildAddressEntry(arg0, arg1)];
+
+          opt.all ? cb(err, addresses) : cb(err, addresses[0].address, addresses[0].family);
+        });
+      }
+    }
+
+    // temporary internal emitter until the AxiosRequest class will be implemented
+    const emitter = new EventEmitter();
+
+    const onFinished = () => {
+      if (config.cancelToken) {
+        config.cancelToken.unsubscribe(abort);
+      }
+
+      if (config.signal) {
+        config.signal.removeEventListener('abort', abort);
+      }
+
+      emitter.removeAllListeners();
+    }
+
+    onDone((value, isRejected) => {
+      isDone = true;
+      if (isRejected) {
+        rejected = true;
+        onFinished();
+      }
+    });
+
+    function abort(reason) {
+      emitter.emit('abort', !reason || reason.type ? new CanceledError(null, config, req) : reason);
+    }
+
+    emitter.once('abort', reject);
+
+    if (config.cancelToken || config.signal) {
+      config.cancelToken && config.cancelToken.subscribe(abort);
+      if (config.signal) {
+        config.signal.aborted ? abort() : config.signal.addEventListener('abort', abort);
+      }
+    }
+
+    // Parse url
+    const fullPath = buildFullPath(config.baseURL, config.url);
+    const parsed = new URL(fullPath, platform.hasBrowserEnv ? platform.origin : undefined);
+    const protocol = parsed.protocol || supportedProtocols[0];
+
+    if (protocol === 'data:') {
+      let convertedData;
+
+      if (method !== 'GET') {
+        return settle(resolve, reject, {
+          status: 405,
+          statusText: 'method not allowed',
+          headers: {},
+          config
+        });
+      }
+
+      try {
+        convertedData = fromDataURI(config.url, responseType === 'blob', {
+          Blob: config.env && config.env.Blob
+        });
+      } catch (err) {
+        throw AxiosError.from(err, AxiosError.ERR_BAD_REQUEST, config);
+      }
+
+      if (responseType === 'text') {
+        convertedData = convertedData.toString(responseEncoding);
+
+        if (!responseEncoding || responseEncoding === 'utf8') {
+          convertedData = utils.stripBOM(convertedData);
+        }
+      } else if (responseType === 'stream') {
+        convertedData = stream.Readable.from(convertedData);
+      }
+
+      return settle(resolve, reject, {
+        data: convertedData,
+        status: 200,
+        statusText: 'OK',
+        headers: new AxiosHeaders(),
+        config
+      });
+    }
+
+    if (supportedProtocols.indexOf(protocol) === -1) {
+      return reject(new AxiosError(
+        'Unsupported protocol ' + protocol,
+        AxiosError.ERR_BAD_REQUEST,
+        config
+      ));
+    }
+
+    const headers = AxiosHeaders.from(config.headers).normalize();
+
+    // Set User-Agent (required by some servers)
+    // See https://github.com/axios/axios/issues/69
+    // User-Agent is specified; handle case where no UA header is desired
+    // Only set header if it hasn't been set in config
+    headers.set('User-Agent', 'axios/' + VERSION, false);
+
+    const {onUploadProgress, onDownloadProgress} = config;
+    const maxRate = config.maxRate;
+    let maxUploadRate = undefined;
+    let maxDownloadRate = undefined;
+
+    // support for spec compliant FormData objects
+    if (utils.isSpecCompliantForm(data)) {
+      const userBoundary = headers.getContentType(/boundary=([-_\w\d]{10,70})/i);
+
+      data = formDataToStream(data, (formHeaders) => {
+        headers.set(formHeaders);
+      }, {
+        tag: `axios-${VERSION}-boundary`,
+        boundary: userBoundary && userBoundary[1] || undefined
+      });
+      // support for https://www.npmjs.com/package/form-data api
+    } else if (utils.isFormData(data) && utils.isFunction(data.getHeaders)) {
+      headers.set(data.getHeaders());
+
+      if (!headers.hasContentLength()) {
+        try {
+          const knownLength = await util.promisify(data.getLength).call(data);
+          Number.isFinite(knownLength) && knownLength >= 0 && headers.setContentLength(knownLength);
+          /*eslint no-empty:0*/
+        } catch (e) {
+        }
+      }
+    } else if (utils.isBlob(data) || utils.isFile(data)) {
+      data.size && headers.setContentType(data.type || 'application/octet-stream');
+      headers.setContentLength(data.size || 0);
+      data = stream.Readable.from(readBlob(data));
+    } else if (data && !utils.isStream(data)) {
+      if (Buffer.isBuffer(data)) {
+        // Nothing to do...
+      } else if (utils.isArrayBuffer(data)) {
+        data = Buffer.from(new Uint8Array(data));
+      } else if (utils.isString(data)) {
+        data = Buffer.from(data, 'utf-8');
+      } else {
+        return reject(new AxiosError(
+          'Data after transformation must be a string, an ArrayBuffer, a Buffer, or a Stream',
+          AxiosError.ERR_BAD_REQUEST,
+          config
+        ));
+      }
+
+      // Add Content-Length header if data exists
+      headers.setContentLength(data.length, false);
+
+      if (config.maxBodyLength > -1 && data.length > config.maxBodyLength) {
+        return reject(new AxiosError(
+          'Request body larger than maxBodyLength limit',
+          AxiosError.ERR_BAD_REQUEST,
+          config
+        ));
+      }
+    }
+
+    const contentLength = utils.toFiniteNumber(headers.getContentLength());
+
+    if (utils.isArray(maxRate)) {
+      maxUploadRate = maxRate[0];
+      maxDownloadRate = maxRate[1];
+    } else {
+      maxUploadRate = maxDownloadRate = maxRate;
+    }
+
+    if (data && (onUploadProgress || maxUploadRate)) {
+      if (!utils.isStream(data)) {
+        data = stream.Readable.from(data, {objectMode: false});
+      }
+
+      data = stream.pipeline([data, new AxiosTransformStream({
+        maxRate: utils.toFiniteNumber(maxUploadRate)
+      })], utils.noop);
+
+      onUploadProgress && data.on('progress', flushOnFinish(
+        data,
+        progressEventDecorator(
+          contentLength,
+          progressEventReducer(asyncDecorator(onUploadProgress), false, 3)
+        )
+      ));
+    }
+
+    // HTTP basic authentication
+    let auth = undefined;
+    if (config.auth) {
+      const username = config.auth.username || '';
+      const password = config.auth.password || '';
+      auth = username + ':' + password;
+    }
+
+    if (!auth && parsed.username) {
+      const urlUsername = parsed.username;
+      const urlPassword = parsed.password;
+      auth = urlUsername + ':' + urlPassword;
+    }
+
+    auth && headers.delete('authorization');
+
+    let path;
+
+    try {
+      path = buildURL(
+        parsed.pathname + parsed.search,
+        config.params,
+        config.paramsSerializer
+      ).replace(/^\?/, '');
+    } catch (err) {
+      const customErr = new Error(err.message);
+      customErr.config = config;
+      customErr.url = config.url;
+      customErr.exists = true;
+      return reject(customErr);
+    }
+
+    headers.set(
+      'Accept-Encoding',
+      'gzip, compress, deflate' + (isBrotliSupported ? ', br' : ''), false
+      );
+
+    const options = {
+      path,
+      method: method,
+      headers: headers.toJSON(),
+      agents: { http: config.httpAgent, https: config.httpsAgent },
+      auth,
+      protocol,
+      family,
+      beforeRedirect: dispatchBeforeRedirect,
+      beforeRedirects: {}
+    };
+
+    // cacheable-lookup integration hotfix
+    !utils.isUndefined(lookup) && (options.lookup = lookup);
+
+    if (config.socketPath) {
+      options.socketPath = config.socketPath;
+    } else {
+      options.hostname = parsed.hostname.startsWith("[") ? parsed.hostname.slice(1, -1) : parsed.hostname;
+      options.port = parsed.port;
+      setProxy(options, config.proxy, protocol + '//' + parsed.hostname + (parsed.port ? ':' + parsed.port : '') + options.path);
+    }
+
+    let transport;
+    const isHttpsRequest = isHttps.test(options.protocol);
+    options.agent = isHttpsRequest ? config.httpsAgent : config.httpAgent;
+    if (config.transport) {
+      transport = config.transport;
+    } else if (config.maxRedirects === 0) {
+      transport = isHttpsRequest ? https : http;
+    } else {
+      if (config.maxRedirects) {
+        options.maxRedirects = config.maxRedirects;
+      }
+      if (config.beforeRedirect) {
+        options.beforeRedirects.config = config.beforeRedirect;
+      }
+      transport = isHttpsRequest ? httpsFollow : httpFollow;
+    }
+
+    if (config.maxBodyLength > -1) {
+      options.maxBodyLength = config.maxBodyLength;
+    } else {
+      // follow-redirects does not skip comparison, so it should always succeed for axios -1 unlimited
+      options.maxBodyLength = Infinity;
+    }
+
+    if (config.insecureHTTPParser) {
+      options.insecureHTTPParser = config.insecureHTTPParser;
+    }
+
+    // Create the request
+    req = transport.request(options, function handleResponse(res) {
+      if (req.destroyed) return;
+
+      const streams = [res];
+
+      const responseLength = +res.headers['content-length'];
+
+      if (onDownloadProgress || maxDownloadRate) {
+        const transformStream = new AxiosTransformStream({
+          maxRate: utils.toFiniteNumber(maxDownloadRate)
+        });
+
+        onDownloadProgress && transformStream.on('progress', flushOnFinish(
+          transformStream,
+          progressEventDecorator(
+            responseLength,
+            progressEventReducer(asyncDecorator(onDownloadProgress), true, 3)
+          )
+        ));
+
+        streams.push(transformStream);
+      }
+
+      // decompress the response body transparently if required
+      let responseStream = res;
+
+      // return the last request in case of redirects
+      const lastRequest = res.req || req;
+
+      // if decompress disabled we should not decompress
+      if (config.decompress !== false && res.headers['content-encoding']) {
+        // if no content, but headers still say that it is encoded,
+        // remove the header not confuse downstream operations
+        if (method === 'HEAD' || res.statusCode === 204) {
+          delete res.headers['content-encoding'];
+        }
+
+        switch ((res.headers['content-encoding'] || '').toLowerCase()) {
+        /*eslint default-case:0*/
+        case 'gzip':
+        case 'x-gzip':
+        case 'compress':
+        case 'x-compress':
+          // add the unzipper to the body stream processing pipeline
+          streams.push(zlib.createUnzip(zlibOptions));
+
+          // remove the content-encoding in order to not confuse downstream operations
+          delete res.headers['content-encoding'];
+          break;
+        case 'deflate':
+          streams.push(new ZlibHeaderTransformStream());
+
+          // add the unzipper to the body stream processing pipeline
+          streams.push(zlib.createUnzip(zlibOptions));
+
+          // remove the content-encoding in order to not confuse downstream operations
+          delete res.headers['content-encoding'];
+          break;
+        case 'br':
+          if (isBrotliSupported) {
+            streams.push(zlib.createBrotliDecompress(brotliOptions));
+            delete res.headers['content-encoding'];
+          }
+        }
+      }
+
+      responseStream = streams.length > 1 ? stream.pipeline(streams, utils.noop) : streams[0];
+
+      const offListeners = stream.finished(responseStream, () => {
+        offListeners();
+        onFinished();
+      });
+
+      const response = {
+        status: res.statusCode,
+        statusText: res.statusMessage,
+        headers: new AxiosHeaders(res.headers),
+        config,
+        request: lastRequest
+      };
+
+      if (responseType === 'stream') {
+        response.data = responseStream;
+        settle(resolve, reject, response);
+      } else {
+        const responseBuffer = [];
+        let totalResponseBytes = 0;
+
+        responseStream.on('data', function handleStreamData(chunk) {
+          responseBuffer.push(chunk);
+          totalResponseBytes += chunk.length;
+
+          // make sure the content length is not over the maxContentLength if specified
+          if (config.maxContentLength > -1 && totalResponseBytes > config.maxContentLength) {
+            // stream.destroy() emit aborted event before calling reject() on Node.js v16
+            rejected = true;
+            responseStream.destroy();
+            reject(new AxiosError('maxContentLength size of ' + config.maxContentLength + ' exceeded',
+              AxiosError.ERR_BAD_RESPONSE, config, lastRequest));
+          }
+        });
+
+        responseStream.on('aborted', function handlerStreamAborted() {
+          if (rejected) {
+            return;
+          }
+
+          const err = new AxiosError(
+            'stream has been aborted',
+            AxiosError.ERR_BAD_RESPONSE,
+            config,
+            lastRequest
+          );
+          responseStream.destroy(err);
+          reject(err);
+        });
+
+        responseStream.on('error', function handleStreamError(err) {
+          if (req.destroyed) return;
+          reject(AxiosError.from(err, null, config, lastRequest));
+        });
+
+        responseStream.on('end', function handleStreamEnd() {
+          try {
+            let responseData = responseBuffer.length === 1 ? responseBuffer[0] : Buffer.concat(responseBuffer);
+            if (responseType !== 'arraybuffer') {
+              responseData = responseData.toString(responseEncoding);
+              if (!responseEncoding || responseEncoding === 'utf8') {
+                responseData = utils.stripBOM(responseData);
+              }
+            }
+            response.data = responseData;
+          } catch (err) {
+            return reject(AxiosError.from(err, null, config, response.request, response));
+          }
+          settle(resolve, reject, response);
+        });
+      }
+
+      emitter.once('abort', err => {
+        if (!responseStream.destroyed) {
+          responseStream.emit('error', err);
+          responseStream.destroy();
+        }
+      });
+    });
+
+    emitter.once('abort', err => {
+      reject(err);
+      req.destroy(err);
+    });
+
+    // Handle errors
+    req.on('error', function handleRequestError(err) {
+      // @todo remove
+      // if (req.aborted && err.code !== AxiosError.ERR_FR_TOO_MANY_REDIRECTS) return;
+      reject(AxiosError.from(err, null, config, req));
+    });
+
+    // set tcp keep alive to prevent drop connection by peer
+    req.on('socket', function handleRequestSocket(socket) {
+      // default interval of sending ack packet is 1 minute
+      socket.setKeepAlive(true, 1000 * 60);
+    });
+
+    // Handle request timeout
+    if (config.timeout) {
+      // This is forcing a int timeout to avoid problems if the `req` interface doesn't handle other types.
+      const timeout = parseInt(config.timeout, 10);
+
+      if (Number.isNaN(timeout)) {
+        reject(new AxiosError(
+          'error trying to parse `config.timeout` to int',
+          AxiosError.ERR_BAD_OPTION_VALUE,
+          config,
+          req
+        ));
+
+        return;
+      }
+
+      // Sometime, the response will be very slow, and does not respond, the connect event will be block by event loop system.
+      // And timer callback will be fired, and abort() will be invoked before connection, then get "socket hang up" and code ECONNRESET.
+      // At this time, if we have a large number of request, nodejs will hang up some socket on background. and the number will up and up.
+      // And then these socket which be hang up will devouring CPU little by little.
+      // ClientRequest.setTimeout will be fired on the specify milliseconds, and can make sure that abort() will be fired after connect.
+      req.setTimeout(timeout, function handleRequestTimeout() {
+        if (isDone) return;
+        let timeoutErrorMessage = config.timeout ? 'timeout of ' + config.timeout + 'ms exceeded' : 'timeout exceeded';
+        const transitional = config.transitional || transitionalDefaults;
+        if (config.timeoutErrorMessage) {
+          timeoutErrorMessage = config.timeoutErrorMessage;
+        }
+        reject(new AxiosError(
+          timeoutErrorMessage,
+          transitional.clarifyTimeoutError ? AxiosError.ETIMEDOUT : AxiosError.ECONNABORTED,
+          config,
+          req
+        ));
+        abort();
+      });
+    }
+
+
+    // Send the request
+    if (utils.isStream(data)) {
+      let ended = false;
+      let errored = false;
+
+      data.on('end', () => {
+        ended = true;
+      });
+
+      data.once('error', err => {
+        errored = true;
+        req.destroy(err);
+      });
+
+      data.on('close', () => {
+        if (!ended && !errored) {
+          abort(new CanceledError('Request stream has been aborted', config, req));
+        }
+      });
+
+      data.pipe(req);
+    } else {
+      req.end(data);
+    }
+  });
+}
+
+export const __setProxy = setProxy;
diff --git a/backend/node_modules/axios/lib/adapters/xhr.js b/backend/node_modules/axios/lib/adapters/xhr.js
new file mode 100644
index 0000000..a7ee548
--- /dev/null
+++ b/backend/node_modules/axios/lib/adapters/xhr.js
@@ -0,0 +1,197 @@
+import utils from './../utils.js';
+import settle from './../core/settle.js';
+import transitionalDefaults from '../defaults/transitional.js';
+import AxiosError from '../core/AxiosError.js';
+import CanceledError from '../cancel/CanceledError.js';
+import parseProtocol from '../helpers/parseProtocol.js';
+import platform from '../platform/index.js';
+import AxiosHeaders from '../core/AxiosHeaders.js';
+import {progressEventReducer} from '../helpers/progressEventReducer.js';
+import resolveConfig from "../helpers/resolveConfig.js";
+
+const isXHRAdapterSupported = typeof XMLHttpRequest !== 'undefined';
+
+export default isXHRAdapterSupported && function (config) {
+  return new Promise(function dispatchXhrRequest(resolve, reject) {
+    const _config = resolveConfig(config);
+    let requestData = _config.data;
+    const requestHeaders = AxiosHeaders.from(_config.headers).normalize();
+    let {responseType, onUploadProgress, onDownloadProgress} = _config;
+    let onCanceled;
+    let uploadThrottled, downloadThrottled;
+    let flushUpload, flushDownload;
+
+    function done() {
+      flushUpload && flushUpload(); // flush events
+      flushDownload && flushDownload(); // flush events
+
+      _config.cancelToken && _config.cancelToken.unsubscribe(onCanceled);
+
+      _config.signal && _config.signal.removeEventListener('abort', onCanceled);
+    }
+
+    let request = new XMLHttpRequest();
+
+    request.open(_config.method.toUpperCase(), _config.url, true);
+
+    // Set the request timeout in MS
+    request.timeout = _config.timeout;
+
+    function onloadend() {
+      if (!request) {
+        return;
+      }
+      // Prepare the response
+      const responseHeaders = AxiosHeaders.from(
+        'getAllResponseHeaders' in request && request.getAllResponseHeaders()
+      );
+      const responseData = !responseType || responseType === 'text' || responseType === 'json' ?
+        request.responseText : request.response;
+      const response = {
+        data: responseData,
+        status: request.status,
+        statusText: request.statusText,
+        headers: responseHeaders,
+        config,
+        request
+      };
+
+      settle(function _resolve(value) {
+        resolve(value);
+        done();
+      }, function _reject(err) {
+        reject(err);
+        done();
+      }, response);
+
+      // Clean up request
+      request = null;
+    }
+
+    if ('onloadend' in request) {
+      // Use onloadend if available
+      request.onloadend = onloadend;
+    } else {
+      // Listen for ready state to emulate onloadend
+      request.onreadystatechange = function handleLoad() {
+        if (!request || request.readyState !== 4) {
+          return;
+        }
+
+        // The request errored out and we didn't get a response, this will be
+        // handled by onerror instead
+        // With one exception: request that using file: protocol, most browsers
+        // will return status as 0 even though it's a successful request
+        if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {
+          return;
+        }
+        // readystate handler is calling before onerror or ontimeout handlers,
+        // so we should call onloadend on the next 'tick'
+        setTimeout(onloadend);
+      };
+    }
+
+    // Handle browser request cancellation (as opposed to a manual cancellation)
+    request.onabort = function handleAbort() {
+      if (!request) {
+        return;
+      }
+
+      reject(new AxiosError('Request aborted', AxiosError.ECONNABORTED, config, request));
+
+      // Clean up request
+      request = null;
+    };
+
+    // Handle low level network errors
+    request.onerror = function handleError() {
+      // Real errors are hidden from us by the browser
+      // onerror should only fire if it's a network error
+      reject(new AxiosError('Network Error', AxiosError.ERR_NETWORK, config, request));
+
+      // Clean up request
+      request = null;
+    };
+
+    // Handle timeout
+    request.ontimeout = function handleTimeout() {
+      let timeoutErrorMessage = _config.timeout ? 'timeout of ' + _config.timeout + 'ms exceeded' : 'timeout exceeded';
+      const transitional = _config.transitional || transitionalDefaults;
+      if (_config.timeoutErrorMessage) {
+        timeoutErrorMessage = _config.timeoutErrorMessage;
+      }
+      reject(new AxiosError(
+        timeoutErrorMessage,
+        transitional.clarifyTimeoutError ? AxiosError.ETIMEDOUT : AxiosError.ECONNABORTED,
+        config,
+        request));
+
+      // Clean up request
+      request = null;
+    };
+
+    // Remove Content-Type if data is undefined
+    requestData === undefined && requestHeaders.setContentType(null);
+
+    // Add headers to the request
+    if ('setRequestHeader' in request) {
+      utils.forEach(requestHeaders.toJSON(), function setRequestHeader(val, key) {
+        request.setRequestHeader(key, val);
+      });
+    }
+
+    // Add withCredentials to request if needed
+    if (!utils.isUndefined(_config.withCredentials)) {
+      request.withCredentials = !!_config.withCredentials;
+    }
+
+    // Add responseType to request if needed
+    if (responseType && responseType !== 'json') {
+      request.responseType = _config.responseType;
+    }
+
+    // Handle progress if needed
+    if (onDownloadProgress) {
+      ([downloadThrottled, flushDownload] = progressEventReducer(onDownloadProgress, true));
+      request.addEventListener('progress', downloadThrottled);
+    }
+
+    // Not all browsers support upload events
+    if (onUploadProgress && request.upload) {
+      ([uploadThrottled, flushUpload] = progressEventReducer(onUploadProgress));
+
+      request.upload.addEventListener('progress', uploadThrottled);
+
+      request.upload.addEventListener('loadend', flushUpload);
+    }
+
+    if (_config.cancelToken || _config.signal) {
+      // Handle cancellation
+      // eslint-disable-next-line func-names
+      onCanceled = cancel => {
+        if (!request) {
+          return;
+        }
+        reject(!cancel || cancel.type ? new CanceledError(null, config, request) : cancel);
+        request.abort();
+        request = null;
+      };
+
+      _config.cancelToken && _config.cancelToken.subscribe(onCanceled);
+      if (_config.signal) {
+        _config.signal.aborted ? onCanceled() : _config.signal.addEventListener('abort', onCanceled);
+      }
+    }
+
+    const protocol = parseProtocol(_config.url);
+
+    if (protocol && platform.protocols.indexOf(protocol) === -1) {
+      reject(new AxiosError('Unsupported protocol ' + protocol + ':', AxiosError.ERR_BAD_REQUEST, config));
+      return;
+    }
+
+
+    // Send the request
+    request.send(requestData || null);
+  });
+}
diff --git a/backend/node_modules/axios/lib/axios.js b/backend/node_modules/axios/lib/axios.js
new file mode 100644
index 0000000..873f246
--- /dev/null
+++ b/backend/node_modules/axios/lib/axios.js
@@ -0,0 +1,89 @@
+'use strict';
+
+import utils from './utils.js';
+import bind from './helpers/bind.js';
+import Axios from './core/Axios.js';
+import mergeConfig from './core/mergeConfig.js';
+import defaults from './defaults/index.js';
+import formDataToJSON from './helpers/formDataToJSON.js';
+import CanceledError from './cancel/CanceledError.js';
+import CancelToken from './cancel/CancelToken.js';
+import isCancel from './cancel/isCancel.js';
+import {VERSION} from './env/data.js';
+import toFormData from './helpers/toFormData.js';
+import AxiosError from './core/AxiosError.js';
+import spread from './helpers/spread.js';
+import isAxiosError from './helpers/isAxiosError.js';
+import AxiosHeaders from "./core/AxiosHeaders.js";
+import adapters from './adapters/adapters.js';
+import HttpStatusCode from './helpers/HttpStatusCode.js';
+
+/**
+ * Create an instance of Axios
+ *
+ * @param {Object} defaultConfig The default config for the instance
+ *
+ * @returns {Axios} A new instance of Axios
+ */
+function createInstance(defaultConfig) {
+  const context = new Axios(defaultConfig);
+  const instance = bind(Axios.prototype.request, context);
+
+  // Copy axios.prototype to instance
+  utils.extend(instance, Axios.prototype, context, {allOwnKeys: true});
+
+  // Copy context to instance
+  utils.extend(instance, context, null, {allOwnKeys: true});
+
+  // Factory for creating new instances
+  instance.create = function create(instanceConfig) {
+    return createInstance(mergeConfig(defaultConfig, instanceConfig));
+  };
+
+  return instance;
+}
+
+// Create the default instance to be exported
+const axios = createInstance(defaults);
+
+// Expose Axios class to allow class inheritance
+axios.Axios = Axios;
+
+// Expose Cancel & CancelToken
+axios.CanceledError = CanceledError;
+axios.CancelToken = CancelToken;
+axios.isCancel = isCancel;
+axios.VERSION = VERSION;
+axios.toFormData = toFormData;
+
+// Expose AxiosError class
+axios.AxiosError = AxiosError;
+
+// alias for CanceledError for backward compatibility
+axios.Cancel = axios.CanceledError;
+
+// Expose all/spread
+axios.all = function all(promises) {
+  return Promise.all(promises);
+};
+
+axios.spread = spread;
+
+// Expose isAxiosError
+axios.isAxiosError = isAxiosError;
+
+// Expose mergeConfig
+axios.mergeConfig = mergeConfig;
+
+axios.AxiosHeaders = AxiosHeaders;
+
+axios.formToJSON = thing => formDataToJSON(utils.isHTMLForm(thing) ? new FormData(thing) : thing);
+
+axios.getAdapter = adapters.getAdapter;
+
+axios.HttpStatusCode = HttpStatusCode;
+
+axios.default = axios;
+
+// this module should only have a default export
+export default axios
diff --git a/backend/node_modules/axios/lib/cancel/CancelToken.js b/backend/node_modules/axios/lib/cancel/CancelToken.js
new file mode 100644
index 0000000..0fc2025
--- /dev/null
+++ b/backend/node_modules/axios/lib/cancel/CancelToken.js
@@ -0,0 +1,135 @@
+'use strict';
+
+import CanceledError from './CanceledError.js';
+
+/**
+ * A `CancelToken` is an object that can be used to request cancellation of an operation.
+ *
+ * @param {Function} executor The executor function.
+ *
+ * @returns {CancelToken}
+ */
+class CancelToken {
+  constructor(executor) {
+    if (typeof executor !== 'function') {
+      throw new TypeError('executor must be a function.');
+    }
+
+    let resolvePromise;
+
+    this.promise = new Promise(function promiseExecutor(resolve) {
+      resolvePromise = resolve;
+    });
+
+    const token = this;
+
+    // eslint-disable-next-line func-names
+    this.promise.then(cancel => {
+      if (!token._listeners) return;
+
+      let i = token._listeners.length;
+
+      while (i-- > 0) {
+        token._listeners[i](cancel);
+      }
+      token._listeners = null;
+    });
+
+    // eslint-disable-next-line func-names
+    this.promise.then = onfulfilled => {
+      let _resolve;
+      // eslint-disable-next-line func-names
+      const promise = new Promise(resolve => {
+        token.subscribe(resolve);
+        _resolve = resolve;
+      }).then(onfulfilled);
+
+      promise.cancel = function reject() {
+        token.unsubscribe(_resolve);
+      };
+
+      return promise;
+    };
+
+    executor(function cancel(message, config, request) {
+      if (token.reason) {
+        // Cancellation has already been requested
+        return;
+      }
+
+      token.reason = new CanceledError(message, config, request);
+      resolvePromise(token.reason);
+    });
+  }
+
+  /**
+   * Throws a `CanceledError` if cancellation has been requested.
+   */
+  throwIfRequested() {
+    if (this.reason) {
+      throw this.reason;
+    }
+  }
+
+  /**
+   * Subscribe to the cancel signal
+   */
+
+  subscribe(listener) {
+    if (this.reason) {
+      listener(this.reason);
+      return;
+    }
+
+    if (this._listeners) {
+      this._listeners.push(listener);
+    } else {
+      this._listeners = [listener];
+    }
+  }
+
+  /**
+   * Unsubscribe from the cancel signal
+   */
+
+  unsubscribe(listener) {
+    if (!this._listeners) {
+      return;
+    }
+    const index = this._listeners.indexOf(listener);
+    if (index !== -1) {
+      this._listeners.splice(index, 1);
+    }
+  }
+
+  toAbortSignal() {
+    const controller = new AbortController();
+
+    const abort = (err) => {
+      controller.abort(err);
+    };
+
+    this.subscribe(abort);
+
+    controller.signal.unsubscribe = () => this.unsubscribe(abort);
+
+    return controller.signal;
+  }
+
+  /**
+   * Returns an object that contains a new `CancelToken` and a function that, when called,
+   * cancels the `CancelToken`.
+   */
+  static source() {
+    let cancel;
+    const token = new CancelToken(function executor(c) {
+      cancel = c;
+    });
+    return {
+      token,
+      cancel
+    };
+  }
+}
+
+export default CancelToken;
diff --git a/backend/node_modules/axios/lib/cancel/CanceledError.js b/backend/node_modules/axios/lib/cancel/CanceledError.js
new file mode 100644
index 0000000..880066e
--- /dev/null
+++ b/backend/node_modules/axios/lib/cancel/CanceledError.js
@@ -0,0 +1,25 @@
+'use strict';
+
+import AxiosError from '../core/AxiosError.js';
+import utils from '../utils.js';
+
+/**
+ * A `CanceledError` is an object that is thrown when an operation is canceled.
+ *
+ * @param {string=} message The message.
+ * @param {Object=} config The config.
+ * @param {Object=} request The request.
+ *
+ * @returns {CanceledError} The created error.
+ */
+function CanceledError(message, config, request) {
+  // eslint-disable-next-line no-eq-null,eqeqeq
+  AxiosError.call(this, message == null ? 'canceled' : message, AxiosError.ERR_CANCELED, config, request);
+  this.name = 'CanceledError';
+}
+
+utils.inherits(CanceledError, AxiosError, {
+  __CANCEL__: true
+});
+
+export default CanceledError;
diff --git a/backend/node_modules/axios/lib/cancel/isCancel.js b/backend/node_modules/axios/lib/cancel/isCancel.js
new file mode 100644
index 0000000..a444a12
--- /dev/null
+++ b/backend/node_modules/axios/lib/cancel/isCancel.js
@@ -0,0 +1,5 @@
+'use strict';
+
+export default function isCancel(value) {
+  return !!(value && value.__CANCEL__);
+}
diff --git a/backend/node_modules/axios/lib/core/Axios.js b/backend/node_modules/axios/lib/core/Axios.js
new file mode 100644
index 0000000..6dd3c2c
--- /dev/null
+++ b/backend/node_modules/axios/lib/core/Axios.js
@@ -0,0 +1,233 @@
+'use strict';
+
+import utils from './../utils.js';
+import buildURL from '../helpers/buildURL.js';
+import InterceptorManager from './InterceptorManager.js';
+import dispatchRequest from './dispatchRequest.js';
+import mergeConfig from './mergeConfig.js';
+import buildFullPath from './buildFullPath.js';
+import validator from '../helpers/validator.js';
+import AxiosHeaders from './AxiosHeaders.js';
+
+const validators = validator.validators;
+
+/**
+ * Create a new instance of Axios
+ *
+ * @param {Object} instanceConfig The default config for the instance
+ *
+ * @return {Axios} A new instance of Axios
+ */
+class Axios {
+  constructor(instanceConfig) {
+    this.defaults = instanceConfig;
+    this.interceptors = {
+      request: new InterceptorManager(),
+      response: new InterceptorManager()
+    };
+  }
+
+  /**
+   * Dispatch a request
+   *
+   * @param {String|Object} configOrUrl The config specific for this request (merged with this.defaults)
+   * @param {?Object} config
+   *
+   * @returns {Promise} The Promise to be fulfilled
+   */
+  async request(configOrUrl, config) {
+    try {
+      return await this._request(configOrUrl, config);
+    } catch (err) {
+      if (err instanceof Error) {
+        let dummy = {};
+
+        Error.captureStackTrace ? Error.captureStackTrace(dummy) : (dummy = new Error());
+
+        // slice off the Error: ... line
+        const stack = dummy.stack ? dummy.stack.replace(/^.+\n/, '') : '';
+        try {
+          if (!err.stack) {
+            err.stack = stack;
+            // match without the 2 top stack lines
+          } else if (stack && !String(err.stack).endsWith(stack.replace(/^.+\n.+\n/, ''))) {
+            err.stack += '\n' + stack
+          }
+        } catch (e) {
+          // ignore the case where "stack" is an un-writable property
+        }
+      }
+
+      throw err;
+    }
+  }
+
+  _request(configOrUrl, config) {
+    /*eslint no-param-reassign:0*/
+    // Allow for axios('example/url'[, config]) a la fetch API
+    if (typeof configOrUrl === 'string') {
+      config = config || {};
+      config.url = configOrUrl;
+    } else {
+      config = configOrUrl || {};
+    }
+
+    config = mergeConfig(this.defaults, config);
+
+    const {transitional, paramsSerializer, headers} = config;
+
+    if (transitional !== undefined) {
+      validator.assertOptions(transitional, {
+        silentJSONParsing: validators.transitional(validators.boolean),
+        forcedJSONParsing: validators.transitional(validators.boolean),
+        clarifyTimeoutError: validators.transitional(validators.boolean)
+      }, false);
+    }
+
+    if (paramsSerializer != null) {
+      if (utils.isFunction(paramsSerializer)) {
+        config.paramsSerializer = {
+          serialize: paramsSerializer
+        }
+      } else {
+        validator.assertOptions(paramsSerializer, {
+          encode: validators.function,
+          serialize: validators.function
+        }, true);
+      }
+    }
+
+    validator.assertOptions(config, {
+      baseUrl: validators.spelling('baseURL'),
+      withXsrfToken: validators.spelling('withXSRFToken')
+    }, true);
+
+    // Set config.method
+    config.method = (config.method || this.defaults.method || 'get').toLowerCase();
+
+    // Flatten headers
+    let contextHeaders = headers && utils.merge(
+      headers.common,
+      headers[config.method]
+    );
+
+    headers && utils.forEach(
+      ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],
+      (method) => {
+        delete headers[method];
+      }
+    );
+
+    config.headers = AxiosHeaders.concat(contextHeaders, headers);
+
+    // filter out skipped interceptors
+    const requestInterceptorChain = [];
+    let synchronousRequestInterceptors = true;
+    this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {
+      if (typeof interceptor.runWhen === 'function' && interceptor.runWhen(config) === false) {
+        return;
+      }
+
+      synchronousRequestInterceptors = synchronousRequestInterceptors && interceptor.synchronous;
+
+      requestInterceptorChain.unshift(interceptor.fulfilled, interceptor.rejected);
+    });
+
+    const responseInterceptorChain = [];
+    this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {
+      responseInterceptorChain.push(interceptor.fulfilled, interceptor.rejected);
+    });
+
+    let promise;
+    let i = 0;
+    let len;
+
+    if (!synchronousRequestInterceptors) {
+      const chain = [dispatchRequest.bind(this), undefined];
+      chain.unshift.apply(chain, requestInterceptorChain);
+      chain.push.apply(chain, responseInterceptorChain);
+      len = chain.length;
+
+      promise = Promise.resolve(config);
+
+      while (i < len) {
+        promise = promise.then(chain[i++], chain[i++]);
+      }
+
+      return promise;
+    }
+
+    len = requestInterceptorChain.length;
+
+    let newConfig = config;
+
+    i = 0;
+
+    while (i < len) {
+      const onFulfilled = requestInterceptorChain[i++];
+      const onRejected = requestInterceptorChain[i++];
+      try {
+        newConfig = onFulfilled(newConfig);
+      } catch (error) {
+        onRejected.call(this, error);
+        break;
+      }
+    }
+
+    try {
+      promise = dispatchRequest.call(this, newConfig);
+    } catch (error) {
+      return Promise.reject(error);
+    }
+
+    i = 0;
+    len = responseInterceptorChain.length;
+
+    while (i < len) {
+      promise = promise.then(responseInterceptorChain[i++], responseInterceptorChain[i++]);
+    }
+
+    return promise;
+  }
+
+  getUri(config) {
+    config = mergeConfig(this.defaults, config);
+    const fullPath = buildFullPath(config.baseURL, config.url);
+    return buildURL(fullPath, config.params, config.paramsSerializer);
+  }
+}
+
+// Provide aliases for supported request methods
+utils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {
+  /*eslint func-names:0*/
+  Axios.prototype[method] = function(url, config) {
+    return this.request(mergeConfig(config || {}, {
+      method,
+      url,
+      data: (config || {}).data
+    }));
+  };
+});
+
+utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
+  /*eslint func-names:0*/
+
+  function generateHTTPMethod(isForm) {
+    return function httpMethod(url, data, config) {
+      return this.request(mergeConfig(config || {}, {
+        method,
+        headers: isForm ? {
+          'Content-Type': 'multipart/form-data'
+        } : {},
+        url,
+        data
+      }));
+    };
+  }
+
+  Axios.prototype[method] = generateHTTPMethod();
+
+  Axios.prototype[method + 'Form'] = generateHTTPMethod(true);
+});
+
+export default Axios;
diff --git a/backend/node_modules/axios/lib/core/AxiosError.js b/backend/node_modules/axios/lib/core/AxiosError.js
new file mode 100644
index 0000000..73da248
--- /dev/null
+++ b/backend/node_modules/axios/lib/core/AxiosError.js
@@ -0,0 +1,103 @@
+'use strict';
+
+import utils from '../utils.js';
+
+/**
+ * Create an Error with the specified message, config, error code, request and response.
+ *
+ * @param {string} message The error message.
+ * @param {string} [code] The error code (for example, 'ECONNABORTED').
+ * @param {Object} [config] The config.
+ * @param {Object} [request] The request.
+ * @param {Object} [response] The response.
+ *
+ * @returns {Error} The created error.
+ */
+function AxiosError(message, code, config, request, response) {
+  Error.call(this);
+
+  if (Error.captureStackTrace) {
+    Error.captureStackTrace(this, this.constructor);
+  } else {
+    this.stack = (new Error()).stack;
+  }
+
+  this.message = message;
+  this.name = 'AxiosError';
+  code && (this.code = code);
+  config && (this.config = config);
+  request && (this.request = request);
+  if (response) {
+    this.response = response;
+    this.status = response.status ? response.status : null;
+  }
+}
+
+utils.inherits(AxiosError, Error, {
+  toJSON: function toJSON() {
+    return {
+      // Standard
+      message: this.message,
+      name: this.name,
+      // Microsoft
+      description: this.description,
+      number: this.number,
+      // Mozilla
+      fileName: this.fileName,
+      lineNumber: this.lineNumber,
+      columnNumber: this.columnNumber,
+      stack: this.stack,
+      // Axios
+      config: utils.toJSONObject(this.config),
+      code: this.code,
+      status: this.status
+    };
+  }
+});
+
+const prototype = AxiosError.prototype;
+const descriptors = {};
+
+[
+  'ERR_BAD_OPTION_VALUE',
+  'ERR_BAD_OPTION',
+  'ECONNABORTED',
+  'ETIMEDOUT',
+  'ERR_NETWORK',
+  'ERR_FR_TOO_MANY_REDIRECTS',
+  'ERR_DEPRECATED',
+  'ERR_BAD_RESPONSE',
+  'ERR_BAD_REQUEST',
+  'ERR_CANCELED',
+  'ERR_NOT_SUPPORT',
+  'ERR_INVALID_URL'
+// eslint-disable-next-line func-names
+].forEach(code => {
+  descriptors[code] = {value: code};
+});
+
+Object.defineProperties(AxiosError, descriptors);
+Object.defineProperty(prototype, 'isAxiosError', {value: true});
+
+// eslint-disable-next-line func-names
+AxiosError.from = (error, code, config, request, response, customProps) => {
+  const axiosError = Object.create(prototype);
+
+  utils.toFlatObject(error, axiosError, function filter(obj) {
+    return obj !== Error.prototype;
+  }, prop => {
+    return prop !== 'isAxiosError';
+  });
+
+  AxiosError.call(axiosError, error.message, code, config, request, response);
+
+  axiosError.cause = error;
+
+  axiosError.name = error.name;
+
+  customProps && Object.assign(axiosError, customProps);
+
+  return axiosError;
+};
+
+export default AxiosError;
diff --git a/backend/node_modules/axios/lib/core/AxiosHeaders.js b/backend/node_modules/axios/lib/core/AxiosHeaders.js
new file mode 100644
index 0000000..7b576e9
--- /dev/null
+++ b/backend/node_modules/axios/lib/core/AxiosHeaders.js
@@ -0,0 +1,302 @@
+'use strict';
+
+import utils from '../utils.js';
+import parseHeaders from '../helpers/parseHeaders.js';
+
+const $internals = Symbol('internals');
+
+function normalizeHeader(header) {
+  return header && String(header).trim().toLowerCase();
+}
+
+function normalizeValue(value) {
+  if (value === false || value == null) {
+    return value;
+  }
+
+  return utils.isArray(value) ? value.map(normalizeValue) : String(value);
+}
+
+function parseTokens(str) {
+  const tokens = Object.create(null);
+  const tokensRE = /([^\s,;=]+)\s*(?:=\s*([^,;]+))?/g;
+  let match;
+
+  while ((match = tokensRE.exec(str))) {
+    tokens[match[1]] = match[2];
+  }
+
+  return tokens;
+}
+
+const isValidHeaderName = (str) => /^[-_a-zA-Z0-9^`|~,!#$%&'*+.]+$/.test(str.trim());
+
+function matchHeaderValue(context, value, header, filter, isHeaderNameFilter) {
+  if (utils.isFunction(filter)) {
+    return filter.call(this, value, header);
+  }
+
+  if (isHeaderNameFilter) {
+    value = header;
+  }
+
+  if (!utils.isString(value)) return;
+
+  if (utils.isString(filter)) {
+    return value.indexOf(filter) !== -1;
+  }
+
+  if (utils.isRegExp(filter)) {
+    return filter.test(value);
+  }
+}
+
+function formatHeader(header) {
+  return header.trim()
+    .toLowerCase().replace(/([a-z\d])(\w*)/g, (w, char, str) => {
+      return char.toUpperCase() + str;
+    });
+}
+
+function buildAccessors(obj, header) {
+  const accessorName = utils.toCamelCase(' ' + header);
+
+  ['get', 'set', 'has'].forEach(methodName => {
+    Object.defineProperty(obj, methodName + accessorName, {
+      value: function(arg1, arg2, arg3) {
+        return this[methodName].call(this, header, arg1, arg2, arg3);
+      },
+      configurable: true
+    });
+  });
+}
+
+class AxiosHeaders {
+  constructor(headers) {
+    headers && this.set(headers);
+  }
+
+  set(header, valueOrRewrite, rewrite) {
+    const self = this;
+
+    function setHeader(_value, _header, _rewrite) {
+      const lHeader = normalizeHeader(_header);
+
+      if (!lHeader) {
+        throw new Error('header name must be a non-empty string');
+      }
+
+      const key = utils.findKey(self, lHeader);
+
+      if(!key || self[key] === undefined || _rewrite === true || (_rewrite === undefined && self[key] !== false)) {
+        self[key || _header] = normalizeValue(_value);
+      }
+    }
+
+    const setHeaders = (headers, _rewrite) =>
+      utils.forEach(headers, (_value, _header) => setHeader(_value, _header, _rewrite));
+
+    if (utils.isPlainObject(header) || header instanceof this.constructor) {
+      setHeaders(header, valueOrRewrite)
+    } else if(utils.isString(header) && (header = header.trim()) && !isValidHeaderName(header)) {
+      setHeaders(parseHeaders(header), valueOrRewrite);
+    } else if (utils.isHeaders(header)) {
+      for (const [key, value] of header.entries()) {
+        setHeader(value, key, rewrite);
+      }
+    } else {
+      header != null && setHeader(valueOrRewrite, header, rewrite);
+    }
+
+    return this;
+  }
+
+  get(header, parser) {
+    header = normalizeHeader(header);
+
+    if (header) {
+      const key = utils.findKey(this, header);
+
+      if (key) {
+        const value = this[key];
+
+        if (!parser) {
+          return value;
+        }
+
+        if (parser === true) {
+          return parseTokens(value);
+        }
+
+        if (utils.isFunction(parser)) {
+          return parser.call(this, value, key);
+        }
+
+        if (utils.isRegExp(parser)) {
+          return parser.exec(value);
+        }
+
+        throw new TypeError('parser must be boolean|regexp|function');
+      }
+    }
+  }
+
+  has(header, matcher) {
+    header = normalizeHeader(header);
+
+    if (header) {
+      const key = utils.findKey(this, header);
+
+      return !!(key && this[key] !== undefined && (!matcher || matchHeaderValue(this, this[key], key, matcher)));
+    }
+
+    return false;
+  }
+
+  delete(header, matcher) {
+    const self = this;
+    let deleted = false;
+
+    function deleteHeader(_header) {
+      _header = normalizeHeader(_header);
+
+      if (_header) {
+        const key = utils.findKey(self, _header);
+
+        if (key && (!matcher || matchHeaderValue(self, self[key], key, matcher))) {
+          delete self[key];
+
+          deleted = true;
+        }
+      }
+    }
+
+    if (utils.isArray(header)) {
+      header.forEach(deleteHeader);
+    } else {
+      deleteHeader(header);
+    }
+
+    return deleted;
+  }
+
+  clear(matcher) {
+    const keys = Object.keys(this);
+    let i = keys.length;
+    let deleted = false;
+
+    while (i--) {
+      const key = keys[i];
+      if(!matcher || matchHeaderValue(this, this[key], key, matcher, true)) {
+        delete this[key];
+        deleted = true;
+      }
+    }
+
+    return deleted;
+  }
+
+  normalize(format) {
+    const self = this;
+    const headers = {};
+
+    utils.forEach(this, (value, header) => {
+      const key = utils.findKey(headers, header);
+
+      if (key) {
+        self[key] = normalizeValue(value);
+        delete self[header];
+        return;
+      }
+
+      const normalized = format ? formatHeader(header) : String(header).trim();
+
+      if (normalized !== header) {
+        delete self[header];
+      }
+
+      self[normalized] = normalizeValue(value);
+
+      headers[normalized] = true;
+    });
+
+    return this;
+  }
+
+  concat(...targets) {
+    return this.constructor.concat(this, ...targets);
+  }
+
+  toJSON(asStrings) {
+    const obj = Object.create(null);
+
+    utils.forEach(this, (value, header) => {
+      value != null && value !== false && (obj[header] = asStrings && utils.isArray(value) ? value.join(', ') : value);
+    });
+
+    return obj;
+  }
+
+  [Symbol.iterator]() {
+    return Object.entries(this.toJSON())[Symbol.iterator]();
+  }
+
+  toString() {
+    return Object.entries(this.toJSON()).map(([header, value]) => header + ': ' + value).join('\n');
+  }
+
+  get [Symbol.toStringTag]() {
+    return 'AxiosHeaders';
+  }
+
+  static from(thing) {
+    return thing instanceof this ? thing : new this(thing);
+  }
+
+  static concat(first, ...targets) {
+    const computed = new this(first);
+
+    targets.forEach((target) => computed.set(target));
+
+    return computed;
+  }
+
+  static accessor(header) {
+    const internals = this[$internals] = (this[$internals] = {
+      accessors: {}
+    });
+
+    const accessors = internals.accessors;
+    const prototype = this.prototype;
+
+    function defineAccessor(_header) {
+      const lHeader = normalizeHeader(_header);
+
+      if (!accessors[lHeader]) {
+        buildAccessors(prototype, _header);
+        accessors[lHeader] = true;
+      }
+    }
+
+    utils.isArray(header) ? header.forEach(defineAccessor) : defineAccessor(header);
+
+    return this;
+  }
+}
+
+AxiosHeaders.accessor(['Content-Type', 'Content-Length', 'Accept', 'Accept-Encoding', 'User-Agent', 'Authorization']);
+
+// reserved names hotfix
+utils.reduceDescriptors(AxiosHeaders.prototype, ({value}, key) => {
+  let mapped = key[0].toUpperCase() + key.slice(1); // map `set` => `Set`
+  return {
+    get: () => value,
+    set(headerValue) {
+      this[mapped] = headerValue;
+    }
+  }
+});
+
+utils.freezeMethods(AxiosHeaders);
+
+export default AxiosHeaders;
diff --git a/backend/node_modules/axios/lib/core/InterceptorManager.js b/backend/node_modules/axios/lib/core/InterceptorManager.js
new file mode 100644
index 0000000..6657a9d
--- /dev/null
+++ b/backend/node_modules/axios/lib/core/InterceptorManager.js
@@ -0,0 +1,71 @@
+'use strict';
+
+import utils from './../utils.js';
+
+class InterceptorManager {
+  constructor() {
+    this.handlers = [];
+  }
+
+  /**
+   * Add a new interceptor to the stack
+   *
+   * @param {Function} fulfilled The function to handle `then` for a `Promise`
+   * @param {Function} rejected The function to handle `reject` for a `Promise`
+   *
+   * @return {Number} An ID used to remove interceptor later
+   */
+  use(fulfilled, rejected, options) {
+    this.handlers.push({
+      fulfilled,
+      rejected,
+      synchronous: options ? options.synchronous : false,
+      runWhen: options ? options.runWhen : null
+    });
+    return this.handlers.length - 1;
+  }
+
+  /**
+   * Remove an interceptor from the stack
+   *
+   * @param {Number} id The ID that was returned by `use`
+   *
+   * @returns {Boolean} `true` if the interceptor was removed, `false` otherwise
+   */
+  eject(id) {
+    if (this.handlers[id]) {
+      this.handlers[id] = null;
+    }
+  }
+
+  /**
+   * Clear all interceptors from the stack
+   *
+   * @returns {void}
+   */
+  clear() {
+    if (this.handlers) {
+      this.handlers = [];
+    }
+  }
+
+  /**
+   * Iterate over all the registered interceptors
+   *
+   * This method is particularly useful for skipping over any
+   * interceptors that may have become `null` calling `eject`.
+   *
+   * @param {Function} fn The function to call for each interceptor
+   *
+   * @returns {void}
+   */
+  forEach(fn) {
+    utils.forEach(this.handlers, function forEachHandler(h) {
+      if (h !== null) {
+        fn(h);
+      }
+    });
+  }
+}
+
+export default InterceptorManager;
diff --git a/backend/node_modules/axios/lib/core/README.md b/backend/node_modules/axios/lib/core/README.md
new file mode 100644
index 0000000..84559ce
--- /dev/null
+++ b/backend/node_modules/axios/lib/core/README.md
@@ -0,0 +1,8 @@
+# axios // core
+
+The modules found in `core/` should be modules that are specific to the domain logic of axios. These modules would most likely not make sense to be consumed outside of the axios module, as their logic is too specific. Some examples of core modules are:
+
+- Dispatching requests
+  - Requests sent via `adapters/` (see lib/adapters/README.md)
+- Managing interceptors
+- Handling config
diff --git a/backend/node_modules/axios/lib/core/buildFullPath.js b/backend/node_modules/axios/lib/core/buildFullPath.js
new file mode 100644
index 0000000..b60927c
--- /dev/null
+++ b/backend/node_modules/axios/lib/core/buildFullPath.js
@@ -0,0 +1,21 @@
+'use strict';
+
+import isAbsoluteURL from '../helpers/isAbsoluteURL.js';
+import combineURLs from '../helpers/combineURLs.js';
+
+/**
+ * Creates a new URL by combining the baseURL with the requestedURL,
+ * only when the requestedURL is not already an absolute URL.
+ * If the requestURL is absolute, this function returns the requestedURL untouched.
+ *
+ * @param {string} baseURL The base URL
+ * @param {string} requestedURL Absolute or relative URL to combine
+ *
+ * @returns {string} The combined full path
+ */
+export default function buildFullPath(baseURL, requestedURL) {
+  if (baseURL && !isAbsoluteURL(requestedURL)) {
+    return combineURLs(baseURL, requestedURL);
+  }
+  return requestedURL;
+}
diff --git a/backend/node_modules/axios/lib/core/dispatchRequest.js b/backend/node_modules/axios/lib/core/dispatchRequest.js
new file mode 100644
index 0000000..9e306aa
--- /dev/null
+++ b/backend/node_modules/axios/lib/core/dispatchRequest.js
@@ -0,0 +1,81 @@
+'use strict';
+
+import transformData from './transformData.js';
+import isCancel from '../cancel/isCancel.js';
+import defaults from '../defaults/index.js';
+import CanceledError from '../cancel/CanceledError.js';
+import AxiosHeaders from '../core/AxiosHeaders.js';
+import adapters from "../adapters/adapters.js";
+
+/**
+ * Throws a `CanceledError` if cancellation has been requested.
+ *
+ * @param {Object} config The config that is to be used for the request
+ *
+ * @returns {void}
+ */
+function throwIfCancellationRequested(config) {
+  if (config.cancelToken) {
+    config.cancelToken.throwIfRequested();
+  }
+
+  if (config.signal && config.signal.aborted) {
+    throw new CanceledError(null, config);
+  }
+}
+
+/**
+ * Dispatch a request to the server using the configured adapter.
+ *
+ * @param {object} config The config that is to be used for the request
+ *
+ * @returns {Promise} The Promise to be fulfilled
+ */
+export default function dispatchRequest(config) {
+  throwIfCancellationRequested(config);
+
+  config.headers = AxiosHeaders.from(config.headers);
+
+  // Transform request data
+  config.data = transformData.call(
+    config,
+    config.transformRequest
+  );
+
+  if (['post', 'put', 'patch'].indexOf(config.method) !== -1) {
+    config.headers.setContentType('application/x-www-form-urlencoded', false);
+  }
+
+  const adapter = adapters.getAdapter(config.adapter || defaults.adapter);
+
+  return adapter(config).then(function onAdapterResolution(response) {
+    throwIfCancellationRequested(config);
+
+    // Transform response data
+    response.data = transformData.call(
+      config,
+      config.transformResponse,
+      response
+    );
+
+    response.headers = AxiosHeaders.from(response.headers);
+
+    return response;
+  }, function onAdapterRejection(reason) {
+    if (!isCancel(reason)) {
+      throwIfCancellationRequested(config);
+
+      // Transform response data
+      if (reason && reason.response) {
+        reason.response.data = transformData.call(
+          config,
+          config.transformResponse,
+          reason.response
+        );
+        reason.response.headers = AxiosHeaders.from(reason.response.headers);
+      }
+    }
+
+    return Promise.reject(reason);
+  });
+}
diff --git a/backend/node_modules/axios/lib/core/mergeConfig.js b/backend/node_modules/axios/lib/core/mergeConfig.js
new file mode 100644
index 0000000..c510073
--- /dev/null
+++ b/backend/node_modules/axios/lib/core/mergeConfig.js
@@ -0,0 +1,106 @@
+'use strict';
+
+import utils from '../utils.js';
+import AxiosHeaders from "./AxiosHeaders.js";
+
+const headersToObject = (thing) => thing instanceof AxiosHeaders ? { ...thing } : thing;
+
+/**
+ * Config-specific merge-function which creates a new config-object
+ * by merging two configuration objects together.
+ *
+ * @param {Object} config1
+ * @param {Object} config2
+ *
+ * @returns {Object} New object resulting from merging config2 to config1
+ */
+export default function mergeConfig(config1, config2) {
+  // eslint-disable-next-line no-param-reassign
+  config2 = config2 || {};
+  const config = {};
+
+  function getMergedValue(target, source, prop, caseless) {
+    if (utils.isPlainObject(target) && utils.isPlainObject(source)) {
+      return utils.merge.call({caseless}, target, source);
+    } else if (utils.isPlainObject(source)) {
+      return utils.merge({}, source);
+    } else if (utils.isArray(source)) {
+      return source.slice();
+    }
+    return source;
+  }
+
+  // eslint-disable-next-line consistent-return
+  function mergeDeepProperties(a, b, prop , caseless) {
+    if (!utils.isUndefined(b)) {
+      return getMergedValue(a, b, prop , caseless);
+    } else if (!utils.isUndefined(a)) {
+      return getMergedValue(undefined, a, prop , caseless);
+    }
+  }
+
+  // eslint-disable-next-line consistent-return
+  function valueFromConfig2(a, b) {
+    if (!utils.isUndefined(b)) {
+      return getMergedValue(undefined, b);
+    }
+  }
+
+  // eslint-disable-next-line consistent-return
+  function defaultToConfig2(a, b) {
+    if (!utils.isUndefined(b)) {
+      return getMergedValue(undefined, b);
+    } else if (!utils.isUndefined(a)) {
+      return getMergedValue(undefined, a);
+    }
+  }
+
+  // eslint-disable-next-line consistent-return
+  function mergeDirectKeys(a, b, prop) {
+    if (prop in config2) {
+      return getMergedValue(a, b);
+    } else if (prop in config1) {
+      return getMergedValue(undefined, a);
+    }
+  }
+
+  const mergeMap = {
+    url: valueFromConfig2,
+    method: valueFromConfig2,
+    data: valueFromConfig2,
+    baseURL: defaultToConfig2,
+    transformRequest: defaultToConfig2,
+    transformResponse: defaultToConfig2,
+    paramsSerializer: defaultToConfig2,
+    timeout: defaultToConfig2,
+    timeoutMessage: defaultToConfig2,
+    withCredentials: defaultToConfig2,
+    withXSRFToken: defaultToConfig2,
+    adapter: defaultToConfig2,
+    responseType: defaultToConfig2,
+    xsrfCookieName: defaultToConfig2,
+    xsrfHeaderName: defaultToConfig2,
+    onUploadProgress: defaultToConfig2,
+    onDownloadProgress: defaultToConfig2,
+    decompress: defaultToConfig2,
+    maxContentLength: defaultToConfig2,
+    maxBodyLength: defaultToConfig2,
+    beforeRedirect: defaultToConfig2,
+    transport: defaultToConfig2,
+    httpAgent: defaultToConfig2,
+    httpsAgent: defaultToConfig2,
+    cancelToken: defaultToConfig2,
+    socketPath: defaultToConfig2,
+    responseEncoding: defaultToConfig2,
+    validateStatus: mergeDirectKeys,
+    headers: (a, b , prop) => mergeDeepProperties(headersToObject(a), headersToObject(b),prop, true)
+  };
+
+  utils.forEach(Object.keys(Object.assign({}, config1, config2)), function computeConfigValue(prop) {
+    const merge = mergeMap[prop] || mergeDeepProperties;
+    const configValue = merge(config1[prop], config2[prop], prop);
+    (utils.isUndefined(configValue) && merge !== mergeDirectKeys) || (config[prop] = configValue);
+  });
+
+  return config;
+}
diff --git a/backend/node_modules/axios/lib/core/settle.js b/backend/node_modules/axios/lib/core/settle.js
new file mode 100644
index 0000000..ac905c4
--- /dev/null
+++ b/backend/node_modules/axios/lib/core/settle.js
@@ -0,0 +1,27 @@
+'use strict';
+
+import AxiosError from './AxiosError.js';
+
+/**
+ * Resolve or reject a Promise based on response status.
+ *
+ * @param {Function} resolve A function that resolves the promise.
+ * @param {Function} reject A function that rejects the promise.
+ * @param {object} response The response.
+ *
+ * @returns {object} The response.
+ */
+export default function settle(resolve, reject, response) {
+  const validateStatus = response.config.validateStatus;
+  if (!response.status || !validateStatus || validateStatus(response.status)) {
+    resolve(response);
+  } else {
+    reject(new AxiosError(
+      'Request failed with status code ' + response.status,
+      [AxiosError.ERR_BAD_REQUEST, AxiosError.ERR_BAD_RESPONSE][Math.floor(response.status / 100) - 4],
+      response.config,
+      response.request,
+      response
+    ));
+  }
+}
diff --git a/backend/node_modules/axios/lib/core/transformData.js b/backend/node_modules/axios/lib/core/transformData.js
new file mode 100644
index 0000000..eeb5a8a
--- /dev/null
+++ b/backend/node_modules/axios/lib/core/transformData.js
@@ -0,0 +1,28 @@
+'use strict';
+
+import utils from './../utils.js';
+import defaults from '../defaults/index.js';
+import AxiosHeaders from '../core/AxiosHeaders.js';
+
+/**
+ * Transform the data for a request or a response
+ *
+ * @param {Array|Function} fns A single function or Array of functions
+ * @param {?Object} response The response object
+ *
+ * @returns {*} The resulting transformed data
+ */
+export default function transformData(fns, response) {
+  const config = this || defaults;
+  const context = response || config;
+  const headers = AxiosHeaders.from(context.headers);
+  let data = context.data;
+
+  utils.forEach(fns, function transform(fn) {
+    data = fn.call(config, data, headers.normalize(), response ? response.status : undefined);
+  });
+
+  headers.normalize();
+
+  return data;
+}
diff --git a/backend/node_modules/axios/lib/defaults/index.js b/backend/node_modules/axios/lib/defaults/index.js
new file mode 100644
index 0000000..e543fea
--- /dev/null
+++ b/backend/node_modules/axios/lib/defaults/index.js
@@ -0,0 +1,161 @@
+'use strict';
+
+import utils from '../utils.js';
+import AxiosError from '../core/AxiosError.js';
+import transitionalDefaults from './transitional.js';
+import toFormData from '../helpers/toFormData.js';
+import toURLEncodedForm from '../helpers/toURLEncodedForm.js';
+import platform from '../platform/index.js';
+import formDataToJSON from '../helpers/formDataToJSON.js';
+
+/**
+ * It takes a string, tries to parse it, and if it fails, it returns the stringified version
+ * of the input
+ *
+ * @param {any} rawValue - The value to be stringified.
+ * @param {Function} parser - A function that parses a string into a JavaScript object.
+ * @param {Function} encoder - A function that takes a value and returns a string.
+ *
+ * @returns {string} A stringified version of the rawValue.
+ */
+function stringifySafely(rawValue, parser, encoder) {
+  if (utils.isString(rawValue)) {
+    try {
+      (parser || JSON.parse)(rawValue);
+      return utils.trim(rawValue);
+    } catch (e) {
+      if (e.name !== 'SyntaxError') {
+        throw e;
+      }
+    }
+  }
+
+  return (encoder || JSON.stringify)(rawValue);
+}
+
+const defaults = {
+
+  transitional: transitionalDefaults,
+
+  adapter: ['xhr', 'http', 'fetch'],
+
+  transformRequest: [function transformRequest(data, headers) {
+    const contentType = headers.getContentType() || '';
+    const hasJSONContentType = contentType.indexOf('application/json') > -1;
+    const isObjectPayload = utils.isObject(data);
+
+    if (isObjectPayload && utils.isHTMLForm(data)) {
+      data = new FormData(data);
+    }
+
+    const isFormData = utils.isFormData(data);
+
+    if (isFormData) {
+      return hasJSONContentType ? JSON.stringify(formDataToJSON(data)) : data;
+    }
+
+    if (utils.isArrayBuffer(data) ||
+      utils.isBuffer(data) ||
+      utils.isStream(data) ||
+      utils.isFile(data) ||
+      utils.isBlob(data) ||
+      utils.isReadableStream(data)
+    ) {
+      return data;
+    }
+    if (utils.isArrayBufferView(data)) {
+      return data.buffer;
+    }
+    if (utils.isURLSearchParams(data)) {
+      headers.setContentType('application/x-www-form-urlencoded;charset=utf-8', false);
+      return data.toString();
+    }
+
+    let isFileList;
+
+    if (isObjectPayload) {
+      if (contentType.indexOf('application/x-www-form-urlencoded') > -1) {
+        return toURLEncodedForm(data, this.formSerializer).toString();
+      }
+
+      if ((isFileList = utils.isFileList(data)) || contentType.indexOf('multipart/form-data') > -1) {
+        const _FormData = this.env && this.env.FormData;
+
+        return toFormData(
+          isFileList ? {'files[]': data} : data,
+          _FormData && new _FormData(),
+          this.formSerializer
+        );
+      }
+    }
+
+    if (isObjectPayload || hasJSONContentType ) {
+      headers.setContentType('application/json', false);
+      return stringifySafely(data);
+    }
+
+    return data;
+  }],
+
+  transformResponse: [function transformResponse(data) {
+    const transitional = this.transitional || defaults.transitional;
+    const forcedJSONParsing = transitional && transitional.forcedJSONParsing;
+    const JSONRequested = this.responseType === 'json';
+
+    if (utils.isResponse(data) || utils.isReadableStream(data)) {
+      return data;
+    }
+
+    if (data && utils.isString(data) && ((forcedJSONParsing && !this.responseType) || JSONRequested)) {
+      const silentJSONParsing = transitional && transitional.silentJSONParsing;
+      const strictJSONParsing = !silentJSONParsing && JSONRequested;
+
+      try {
+        return JSON.parse(data);
+      } catch (e) {
+        if (strictJSONParsing) {
+          if (e.name === 'SyntaxError') {
+            throw AxiosError.from(e, AxiosError.ERR_BAD_RESPONSE, this, null, this.response);
+          }
+          throw e;
+        }
+      }
+    }
+
+    return data;
+  }],
+
+  /**
+   * A timeout in milliseconds to abort a request. If set to 0 (default) a
+   * timeout is not created.
+   */
+  timeout: 0,
+
+  xsrfCookieName: 'XSRF-TOKEN',
+  xsrfHeaderName: 'X-XSRF-TOKEN',
+
+  maxContentLength: -1,
+  maxBodyLength: -1,
+
+  env: {
+    FormData: platform.classes.FormData,
+    Blob: platform.classes.Blob
+  },
+
+  validateStatus: function validateStatus(status) {
+    return status >= 200 && status < 300;
+  },
+
+  headers: {
+    common: {
+      'Accept': 'application/json, text/plain, */*',
+      'Content-Type': undefined
+    }
+  }
+};
+
+utils.forEach(['delete', 'get', 'head', 'post', 'put', 'patch'], (method) => {
+  defaults.headers[method] = {};
+});
+
+export default defaults;
diff --git a/backend/node_modules/axios/lib/defaults/transitional.js b/backend/node_modules/axios/lib/defaults/transitional.js
new file mode 100644
index 0000000..f891331
--- /dev/null
+++ b/backend/node_modules/axios/lib/defaults/transitional.js
@@ -0,0 +1,7 @@
+'use strict';
+
+export default {
+  silentJSONParsing: true,
+  forcedJSONParsing: true,
+  clarifyTimeoutError: false
+};
diff --git a/backend/node_modules/axios/lib/env/README.md b/backend/node_modules/axios/lib/env/README.md
new file mode 100644
index 0000000..b41baff
--- /dev/null
+++ b/backend/node_modules/axios/lib/env/README.md
@@ -0,0 +1,3 @@
+# axios // env
+
+The `data.js` file is updated automatically when the package version is upgrading. Please do not edit it manually.
diff --git a/backend/node_modules/axios/lib/env/classes/FormData.js b/backend/node_modules/axios/lib/env/classes/FormData.js
new file mode 100644
index 0000000..862adb9
--- /dev/null
+++ b/backend/node_modules/axios/lib/env/classes/FormData.js
@@ -0,0 +1,2 @@
+import _FormData from 'form-data';
+export default typeof FormData !== 'undefined' ? FormData : _FormData;
diff --git a/backend/node_modules/axios/lib/env/data.js b/backend/node_modules/axios/lib/env/data.js
new file mode 100644
index 0000000..28eb8d1
--- /dev/null
+++ b/backend/node_modules/axios/lib/env/data.js
@@ -0,0 +1 @@
+export const VERSION = "1.7.9";
\ No newline at end of file
diff --git a/backend/node_modules/axios/lib/helpers/AxiosTransformStream.js b/backend/node_modules/axios/lib/helpers/AxiosTransformStream.js
new file mode 100644
index 0000000..4140071
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/AxiosTransformStream.js
@@ -0,0 +1,143 @@
+'use strict';
+
+import stream from 'stream';
+import utils from '../utils.js';
+
+const kInternals = Symbol('internals');
+
+class AxiosTransformStream extends stream.Transform{
+  constructor(options) {
+    options = utils.toFlatObject(options, {
+      maxRate: 0,
+      chunkSize: 64 * 1024,
+      minChunkSize: 100,
+      timeWindow: 500,
+      ticksRate: 2,
+      samplesCount: 15
+    }, null, (prop, source) => {
+      return !utils.isUndefined(source[prop]);
+    });
+
+    super({
+      readableHighWaterMark: options.chunkSize
+    });
+
+    const internals = this[kInternals] = {
+      timeWindow: options.timeWindow,
+      chunkSize: options.chunkSize,
+      maxRate: options.maxRate,
+      minChunkSize: options.minChunkSize,
+      bytesSeen: 0,
+      isCaptured: false,
+      notifiedBytesLoaded: 0,
+      ts: Date.now(),
+      bytes: 0,
+      onReadCallback: null
+    };
+
+    this.on('newListener', event => {
+      if (event === 'progress') {
+        if (!internals.isCaptured) {
+          internals.isCaptured = true;
+        }
+      }
+    });
+  }
+
+  _read(size) {
+    const internals = this[kInternals];
+
+    if (internals.onReadCallback) {
+      internals.onReadCallback();
+    }
+
+    return super._read(size);
+  }
+
+  _transform(chunk, encoding, callback) {
+    const internals = this[kInternals];
+    const maxRate = internals.maxRate;
+
+    const readableHighWaterMark = this.readableHighWaterMark;
+
+    const timeWindow = internals.timeWindow;
+
+    const divider = 1000 / timeWindow;
+    const bytesThreshold = (maxRate / divider);
+    const minChunkSize = internals.minChunkSize !== false ? Math.max(internals.minChunkSize, bytesThreshold * 0.01) : 0;
+
+    const pushChunk = (_chunk, _callback) => {
+      const bytes = Buffer.byteLength(_chunk);
+      internals.bytesSeen += bytes;
+      internals.bytes += bytes;
+
+      internals.isCaptured && this.emit('progress', internals.bytesSeen);
+
+      if (this.push(_chunk)) {
+        process.nextTick(_callback);
+      } else {
+        internals.onReadCallback = () => {
+          internals.onReadCallback = null;
+          process.nextTick(_callback);
+        };
+      }
+    }
+
+    const transformChunk = (_chunk, _callback) => {
+      const chunkSize = Buffer.byteLength(_chunk);
+      let chunkRemainder = null;
+      let maxChunkSize = readableHighWaterMark;
+      let bytesLeft;
+      let passed = 0;
+
+      if (maxRate) {
+        const now = Date.now();
+
+        if (!internals.ts || (passed = (now - internals.ts)) >= timeWindow) {
+          internals.ts = now;
+          bytesLeft = bytesThreshold - internals.bytes;
+          internals.bytes = bytesLeft < 0 ? -bytesLeft : 0;
+          passed = 0;
+        }
+
+        bytesLeft = bytesThreshold - internals.bytes;
+      }
+
+      if (maxRate) {
+        if (bytesLeft <= 0) {
+          // next time window
+          return setTimeout(() => {
+            _callback(null, _chunk);
+          }, timeWindow - passed);
+        }
+
+        if (bytesLeft < maxChunkSize) {
+          maxChunkSize = bytesLeft;
+        }
+      }
+
+      if (maxChunkSize && chunkSize > maxChunkSize && (chunkSize - maxChunkSize) > minChunkSize) {
+        chunkRemainder = _chunk.subarray(maxChunkSize);
+        _chunk = _chunk.subarray(0, maxChunkSize);
+      }
+
+      pushChunk(_chunk, chunkRemainder ? () => {
+        process.nextTick(_callback, null, chunkRemainder);
+      } : _callback);
+    };
+
+    transformChunk(chunk, function transformNextChunk(err, _chunk) {
+      if (err) {
+        return callback(err);
+      }
+
+      if (_chunk) {
+        transformChunk(_chunk, transformNextChunk);
+      } else {
+        callback(null);
+      }
+    });
+  }
+}
+
+export default AxiosTransformStream;
diff --git a/backend/node_modules/axios/lib/helpers/AxiosURLSearchParams.js b/backend/node_modules/axios/lib/helpers/AxiosURLSearchParams.js
new file mode 100644
index 0000000..b9aa9f0
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/AxiosURLSearchParams.js
@@ -0,0 +1,58 @@
+'use strict';
+
+import toFormData from './toFormData.js';
+
+/**
+ * It encodes a string by replacing all characters that are not in the unreserved set with
+ * their percent-encoded equivalents
+ *
+ * @param {string} str - The string to encode.
+ *
+ * @returns {string} The encoded string.
+ */
+function encode(str) {
+  const charMap = {
+    '!': '%21',
+    "'": '%27',
+    '(': '%28',
+    ')': '%29',
+    '~': '%7E',
+    '%20': '+',
+    '%00': '\x00'
+  };
+  return encodeURIComponent(str).replace(/[!'()~]|%20|%00/g, function replacer(match) {
+    return charMap[match];
+  });
+}
+
+/**
+ * It takes a params object and converts it to a FormData object
+ *
+ * @param {Object<string, any>} params - The parameters to be converted to a FormData object.
+ * @param {Object<string, any>} options - The options object passed to the Axios constructor.
+ *
+ * @returns {void}
+ */
+function AxiosURLSearchParams(params, options) {
+  this._pairs = [];
+
+  params && toFormData(params, this, options);
+}
+
+const prototype = AxiosURLSearchParams.prototype;
+
+prototype.append = function append(name, value) {
+  this._pairs.push([name, value]);
+};
+
+prototype.toString = function toString(encoder) {
+  const _encode = encoder ? function(value) {
+    return encoder.call(this, value, encode);
+  } : encode;
+
+  return this._pairs.map(function each(pair) {
+    return _encode(pair[0]) + '=' + _encode(pair[1]);
+  }, '').join('&');
+};
+
+export default AxiosURLSearchParams;
diff --git a/backend/node_modules/axios/lib/helpers/HttpStatusCode.js b/backend/node_modules/axios/lib/helpers/HttpStatusCode.js
new file mode 100644
index 0000000..b3e7adc
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/HttpStatusCode.js
@@ -0,0 +1,71 @@
+const HttpStatusCode = {
+  Continue: 100,
+  SwitchingProtocols: 101,
+  Processing: 102,
+  EarlyHints: 103,
+  Ok: 200,
+  Created: 201,
+  Accepted: 202,
+  NonAuthoritativeInformation: 203,
+  NoContent: 204,
+  ResetContent: 205,
+  PartialContent: 206,
+  MultiStatus: 207,
+  AlreadyReported: 208,
+  ImUsed: 226,
+  MultipleChoices: 300,
+  MovedPermanently: 301,
+  Found: 302,
+  SeeOther: 303,
+  NotModified: 304,
+  UseProxy: 305,
+  Unused: 306,
+  TemporaryRedirect: 307,
+  PermanentRedirect: 308,
+  BadRequest: 400,
+  Unauthorized: 401,
+  PaymentRequired: 402,
+  Forbidden: 403,
+  NotFound: 404,
+  MethodNotAllowed: 405,
+  NotAcceptable: 406,
+  ProxyAuthenticationRequired: 407,
+  RequestTimeout: 408,
+  Conflict: 409,
+  Gone: 410,
+  LengthRequired: 411,
+  PreconditionFailed: 412,
+  PayloadTooLarge: 413,
+  UriTooLong: 414,
+  UnsupportedMediaType: 415,
+  RangeNotSatisfiable: 416,
+  ExpectationFailed: 417,
+  ImATeapot: 418,
+  MisdirectedRequest: 421,
+  UnprocessableEntity: 422,
+  Locked: 423,
+  FailedDependency: 424,
+  TooEarly: 425,
+  UpgradeRequired: 426,
+  PreconditionRequired: 428,
+  TooManyRequests: 429,
+  RequestHeaderFieldsTooLarge: 431,
+  UnavailableForLegalReasons: 451,
+  InternalServerError: 500,
+  NotImplemented: 501,
+  BadGateway: 502,
+  ServiceUnavailable: 503,
+  GatewayTimeout: 504,
+  HttpVersionNotSupported: 505,
+  VariantAlsoNegotiates: 506,
+  InsufficientStorage: 507,
+  LoopDetected: 508,
+  NotExtended: 510,
+  NetworkAuthenticationRequired: 511,
+};
+
+Object.entries(HttpStatusCode).forEach(([key, value]) => {
+  HttpStatusCode[value] = key;
+});
+
+export default HttpStatusCode;
diff --git a/backend/node_modules/axios/lib/helpers/README.md b/backend/node_modules/axios/lib/helpers/README.md
new file mode 100644
index 0000000..4ae3419
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/README.md
@@ -0,0 +1,7 @@
+# axios // helpers
+
+The modules found in `helpers/` should be generic modules that are _not_ specific to the domain logic of axios. These modules could theoretically be published to npm on their own and consumed by other modules or apps. Some examples of generic modules are things like:
+
+- Browser polyfills
+- Managing cookies
+- Parsing HTTP headers
diff --git a/backend/node_modules/axios/lib/helpers/ZlibHeaderTransformStream.js b/backend/node_modules/axios/lib/helpers/ZlibHeaderTransformStream.js
new file mode 100644
index 0000000..d1791f0
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/ZlibHeaderTransformStream.js
@@ -0,0 +1,28 @@
+"use strict";
+
+import stream from "stream";
+
+class ZlibHeaderTransformStream extends stream.Transform {
+  __transform(chunk, encoding, callback) {
+    this.push(chunk);
+    callback();
+  }
+
+  _transform(chunk, encoding, callback) {
+    if (chunk.length !== 0) {
+      this._transform = this.__transform;
+
+      // Add Default Compression headers if no zlib headers are present
+      if (chunk[0] !== 120) { // Hex: 78
+        const header = Buffer.alloc(2);
+        header[0] = 120; // Hex: 78
+        header[1] = 156; // Hex: 9C 
+        this.push(header, encoding);
+      }
+    }
+
+    this.__transform(chunk, encoding, callback);
+  }
+}
+
+export default ZlibHeaderTransformStream;
diff --git a/backend/node_modules/axios/lib/helpers/bind.js b/backend/node_modules/axios/lib/helpers/bind.js
new file mode 100644
index 0000000..b3aa83b
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/bind.js
@@ -0,0 +1,7 @@
+'use strict';
+
+export default function bind(fn, thisArg) {
+  return function wrap() {
+    return fn.apply(thisArg, arguments);
+  };
+}
diff --git a/backend/node_modules/axios/lib/helpers/buildURL.js b/backend/node_modules/axios/lib/helpers/buildURL.js
new file mode 100644
index 0000000..5c5eb57
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/buildURL.js
@@ -0,0 +1,69 @@
+'use strict';
+
+import utils from '../utils.js';
+import AxiosURLSearchParams from '../helpers/AxiosURLSearchParams.js';
+
+/**
+ * It replaces all instances of the characters `:`, `$`, `,`, `+`, `[`, and `]` with their
+ * URI encoded counterparts
+ *
+ * @param {string} val The value to be encoded.
+ *
+ * @returns {string} The encoded value.
+ */
+function encode(val) {
+  return encodeURIComponent(val).
+    replace(/%3A/gi, ':').
+    replace(/%24/g, '$').
+    replace(/%2C/gi, ',').
+    replace(/%20/g, '+').
+    replace(/%5B/gi, '[').
+    replace(/%5D/gi, ']');
+}
+
+/**
+ * Build a URL by appending params to the end
+ *
+ * @param {string} url The base of the url (e.g., http://www.google.com)
+ * @param {object} [params] The params to be appended
+ * @param {?(object|Function)} options
+ *
+ * @returns {string} The formatted url
+ */
+export default function buildURL(url, params, options) {
+  /*eslint no-param-reassign:0*/
+  if (!params) {
+    return url;
+  }
+  
+  const _encode = options && options.encode || encode;
+
+  if (utils.isFunction(options)) {
+    options = {
+      serialize: options
+    };
+  } 
+
+  const serializeFn = options && options.serialize;
+
+  let serializedParams;
+
+  if (serializeFn) {
+    serializedParams = serializeFn(params, options);
+  } else {
+    serializedParams = utils.isURLSearchParams(params) ?
+      params.toString() :
+      new AxiosURLSearchParams(params, options).toString(_encode);
+  }
+
+  if (serializedParams) {
+    const hashmarkIndex = url.indexOf("#");
+
+    if (hashmarkIndex !== -1) {
+      url = url.slice(0, hashmarkIndex);
+    }
+    url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;
+  }
+
+  return url;
+}
diff --git a/backend/node_modules/axios/lib/helpers/callbackify.js b/backend/node_modules/axios/lib/helpers/callbackify.js
new file mode 100644
index 0000000..4603bad
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/callbackify.js
@@ -0,0 +1,16 @@
+import utils from "../utils.js";
+
+const callbackify = (fn, reducer) => {
+  return utils.isAsyncFn(fn) ? function (...args) {
+    const cb = args.pop();
+    fn.apply(this, args).then((value) => {
+      try {
+        reducer ? cb(null, ...reducer(value)) : cb(null, value);
+      } catch (err) {
+        cb(err);
+      }
+    }, cb);
+  } : fn;
+}
+
+export default callbackify;
diff --git a/backend/node_modules/axios/lib/helpers/combineURLs.js b/backend/node_modules/axios/lib/helpers/combineURLs.js
new file mode 100644
index 0000000..9f04f02
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/combineURLs.js
@@ -0,0 +1,15 @@
+'use strict';
+
+/**
+ * Creates a new URL by combining the specified URLs
+ *
+ * @param {string} baseURL The base URL
+ * @param {string} relativeURL The relative URL
+ *
+ * @returns {string} The combined URL
+ */
+export default function combineURLs(baseURL, relativeURL) {
+  return relativeURL
+    ? baseURL.replace(/\/?\/$/, '') + '/' + relativeURL.replace(/^\/+/, '')
+    : baseURL;
+}
diff --git a/backend/node_modules/axios/lib/helpers/composeSignals.js b/backend/node_modules/axios/lib/helpers/composeSignals.js
new file mode 100644
index 0000000..84087c8
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/composeSignals.js
@@ -0,0 +1,48 @@
+import CanceledError from "../cancel/CanceledError.js";
+import AxiosError from "../core/AxiosError.js";
+import utils from '../utils.js';
+
+const composeSignals = (signals, timeout) => {
+  const {length} = (signals = signals ? signals.filter(Boolean) : []);
+
+  if (timeout || length) {
+    let controller = new AbortController();
+
+    let aborted;
+
+    const onabort = function (reason) {
+      if (!aborted) {
+        aborted = true;
+        unsubscribe();
+        const err = reason instanceof Error ? reason : this.reason;
+        controller.abort(err instanceof AxiosError ? err : new CanceledError(err instanceof Error ? err.message : err));
+      }
+    }
+
+    let timer = timeout && setTimeout(() => {
+      timer = null;
+      onabort(new AxiosError(`timeout ${timeout} of ms exceeded`, AxiosError.ETIMEDOUT))
+    }, timeout)
+
+    const unsubscribe = () => {
+      if (signals) {
+        timer && clearTimeout(timer);
+        timer = null;
+        signals.forEach(signal => {
+          signal.unsubscribe ? signal.unsubscribe(onabort) : signal.removeEventListener('abort', onabort);
+        });
+        signals = null;
+      }
+    }
+
+    signals.forEach((signal) => signal.addEventListener('abort', onabort));
+
+    const {signal} = controller;
+
+    signal.unsubscribe = () => utils.asap(unsubscribe);
+
+    return signal;
+  }
+}
+
+export default composeSignals;
diff --git a/backend/node_modules/axios/lib/helpers/cookies.js b/backend/node_modules/axios/lib/helpers/cookies.js
new file mode 100644
index 0000000..d039ac4
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/cookies.js
@@ -0,0 +1,42 @@
+import utils from './../utils.js';
+import platform from '../platform/index.js';
+
+export default platform.hasStandardBrowserEnv ?
+
+  // Standard browser envs support document.cookie
+  {
+    write(name, value, expires, path, domain, secure) {
+      const cookie = [name + '=' + encodeURIComponent(value)];
+
+      utils.isNumber(expires) && cookie.push('expires=' + new Date(expires).toGMTString());
+
+      utils.isString(path) && cookie.push('path=' + path);
+
+      utils.isString(domain) && cookie.push('domain=' + domain);
+
+      secure === true && cookie.push('secure');
+
+      document.cookie = cookie.join('; ');
+    },
+
+    read(name) {
+      const match = document.cookie.match(new RegExp('(^|;\\s*)(' + name + ')=([^;]*)'));
+      return (match ? decodeURIComponent(match[3]) : null);
+    },
+
+    remove(name) {
+      this.write(name, '', Date.now() - 86400000);
+    }
+  }
+
+  :
+
+  // Non-standard browser env (web workers, react-native) lack needed support.
+  {
+    write() {},
+    read() {
+      return null;
+    },
+    remove() {}
+  };
+
diff --git a/backend/node_modules/axios/lib/helpers/deprecatedMethod.js b/backend/node_modules/axios/lib/helpers/deprecatedMethod.js
new file mode 100644
index 0000000..9e8fae6
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/deprecatedMethod.js
@@ -0,0 +1,26 @@
+'use strict';
+
+/*eslint no-console:0*/
+
+/**
+ * Supply a warning to the developer that a method they are using
+ * has been deprecated.
+ *
+ * @param {string} method The name of the deprecated method
+ * @param {string} [instead] The alternate method to use if applicable
+ * @param {string} [docs] The documentation URL to get further details
+ *
+ * @returns {void}
+ */
+export default function deprecatedMethod(method, instead, docs) {
+  try {
+    console.warn(
+      'DEPRECATED method `' + method + '`.' +
+      (instead ? ' Use `' + instead + '` instead.' : '') +
+      ' This method will be removed in a future release.');
+
+    if (docs) {
+      console.warn('For more information about usage see ' + docs);
+    }
+  } catch (e) { /* Ignore */ }
+}
diff --git a/backend/node_modules/axios/lib/helpers/formDataToJSON.js b/backend/node_modules/axios/lib/helpers/formDataToJSON.js
new file mode 100644
index 0000000..906ce60
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/formDataToJSON.js
@@ -0,0 +1,95 @@
+'use strict';
+
+import utils from '../utils.js';
+
+/**
+ * It takes a string like `foo[x][y][z]` and returns an array like `['foo', 'x', 'y', 'z']
+ *
+ * @param {string} name - The name of the property to get.
+ *
+ * @returns An array of strings.
+ */
+function parsePropPath(name) {
+  // foo[x][y][z]
+  // foo.x.y.z
+  // foo-x-y-z
+  // foo x y z
+  return utils.matchAll(/\w+|\[(\w*)]/g, name).map(match => {
+    return match[0] === '[]' ? '' : match[1] || match[0];
+  });
+}
+
+/**
+ * Convert an array to an object.
+ *
+ * @param {Array<any>} arr - The array to convert to an object.
+ *
+ * @returns An object with the same keys and values as the array.
+ */
+function arrayToObject(arr) {
+  const obj = {};
+  const keys = Object.keys(arr);
+  let i;
+  const len = keys.length;
+  let key;
+  for (i = 0; i < len; i++) {
+    key = keys[i];
+    obj[key] = arr[key];
+  }
+  return obj;
+}
+
+/**
+ * It takes a FormData object and returns a JavaScript object
+ *
+ * @param {string} formData The FormData object to convert to JSON.
+ *
+ * @returns {Object<string, any> | null} The converted object.
+ */
+function formDataToJSON(formData) {
+  function buildPath(path, value, target, index) {
+    let name = path[index++];
+
+    if (name === '__proto__') return true;
+
+    const isNumericKey = Number.isFinite(+name);
+    const isLast = index >= path.length;
+    name = !name && utils.isArray(target) ? target.length : name;
+
+    if (isLast) {
+      if (utils.hasOwnProp(target, name)) {
+        target[name] = [target[name], value];
+      } else {
+        target[name] = value;
+      }
+
+      return !isNumericKey;
+    }
+
+    if (!target[name] || !utils.isObject(target[name])) {
+      target[name] = [];
+    }
+
+    const result = buildPath(path, value, target[name], index);
+
+    if (result && utils.isArray(target[name])) {
+      target[name] = arrayToObject(target[name]);
+    }
+
+    return !isNumericKey;
+  }
+
+  if (utils.isFormData(formData) && utils.isFunction(formData.entries)) {
+    const obj = {};
+
+    utils.forEachEntry(formData, (name, value) => {
+      buildPath(parsePropPath(name), value, obj, 0);
+    });
+
+    return obj;
+  }
+
+  return null;
+}
+
+export default formDataToJSON;
diff --git a/backend/node_modules/axios/lib/helpers/formDataToStream.js b/backend/node_modules/axios/lib/helpers/formDataToStream.js
new file mode 100644
index 0000000..77ffab1
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/formDataToStream.js
@@ -0,0 +1,111 @@
+import util from 'util';
+import {Readable} from 'stream';
+import utils from "../utils.js";
+import readBlob from "./readBlob.js";
+
+const BOUNDARY_ALPHABET = utils.ALPHABET.ALPHA_DIGIT + '-_';
+
+const textEncoder = typeof TextEncoder === 'function' ? new TextEncoder() : new util.TextEncoder();
+
+const CRLF = '\r\n';
+const CRLF_BYTES = textEncoder.encode(CRLF);
+const CRLF_BYTES_COUNT = 2;
+
+class FormDataPart {
+  constructor(name, value) {
+    const {escapeName} = this.constructor;
+    const isStringValue = utils.isString(value);
+
+    let headers = `Content-Disposition: form-data; name="${escapeName(name)}"${
+      !isStringValue && value.name ? `; filename="${escapeName(value.name)}"` : ''
+    }${CRLF}`;
+
+    if (isStringValue) {
+      value = textEncoder.encode(String(value).replace(/\r?\n|\r\n?/g, CRLF));
+    } else {
+      headers += `Content-Type: ${value.type || "application/octet-stream"}${CRLF}`
+    }
+
+    this.headers = textEncoder.encode(headers + CRLF);
+
+    this.contentLength = isStringValue ? value.byteLength : value.size;
+
+    this.size = this.headers.byteLength + this.contentLength + CRLF_BYTES_COUNT;
+
+    this.name = name;
+    this.value = value;
+  }
+
+  async *encode(){
+    yield this.headers;
+
+    const {value} = this;
+
+    if(utils.isTypedArray(value)) {
+      yield value;
+    } else {
+      yield* readBlob(value);
+    }
+
+    yield CRLF_BYTES;
+  }
+
+  static escapeName(name) {
+      return String(name).replace(/[\r\n"]/g, (match) => ({
+        '\r' : '%0D',
+        '\n' : '%0A',
+        '"' : '%22',
+      }[match]));
+  }
+}
+
+const formDataToStream = (form, headersHandler, options) => {
+  const {
+    tag = 'form-data-boundary',
+    size = 25,
+    boundary = tag + '-' + utils.generateString(size, BOUNDARY_ALPHABET)
+  } = options || {};
+
+  if(!utils.isFormData(form)) {
+    throw TypeError('FormData instance required');
+  }
+
+  if (boundary.length < 1 || boundary.length > 70) {
+    throw Error('boundary must be 10-70 characters long')
+  }
+
+  const boundaryBytes = textEncoder.encode('--' + boundary + CRLF);
+  const footerBytes = textEncoder.encode('--' + boundary + '--' + CRLF + CRLF);
+  let contentLength = footerBytes.byteLength;
+
+  const parts = Array.from(form.entries()).map(([name, value]) => {
+    const part = new FormDataPart(name, value);
+    contentLength += part.size;
+    return part;
+  });
+
+  contentLength += boundaryBytes.byteLength * parts.length;
+
+  contentLength = utils.toFiniteNumber(contentLength);
+
+  const computedHeaders = {
+    'Content-Type': `multipart/form-data; boundary=${boundary}`
+  }
+
+  if (Number.isFinite(contentLength)) {
+    computedHeaders['Content-Length'] = contentLength;
+  }
+
+  headersHandler && headersHandler(computedHeaders);
+
+  return Readable.from((async function *() {
+    for(const part of parts) {
+      yield boundaryBytes;
+      yield* part.encode();
+    }
+
+    yield footerBytes;
+  })());
+};
+
+export default formDataToStream;
diff --git a/backend/node_modules/axios/lib/helpers/fromDataURI.js b/backend/node_modules/axios/lib/helpers/fromDataURI.js
new file mode 100644
index 0000000..eb71d3f
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/fromDataURI.js
@@ -0,0 +1,53 @@
+'use strict';
+
+import AxiosError from '../core/AxiosError.js';
+import parseProtocol from './parseProtocol.js';
+import platform from '../platform/index.js';
+
+const DATA_URL_PATTERN = /^(?:([^;]+);)?(?:[^;]+;)?(base64|),([\s\S]*)$/;
+
+/**
+ * Parse data uri to a Buffer or Blob
+ *
+ * @param {String} uri
+ * @param {?Boolean} asBlob
+ * @param {?Object} options
+ * @param {?Function} options.Blob
+ *
+ * @returns {Buffer|Blob}
+ */
+export default function fromDataURI(uri, asBlob, options) {
+  const _Blob = options && options.Blob || platform.classes.Blob;
+  const protocol = parseProtocol(uri);
+
+  if (asBlob === undefined && _Blob) {
+    asBlob = true;
+  }
+
+  if (protocol === 'data') {
+    uri = protocol.length ? uri.slice(protocol.length + 1) : uri;
+
+    const match = DATA_URL_PATTERN.exec(uri);
+
+    if (!match) {
+      throw new AxiosError('Invalid URL', AxiosError.ERR_INVALID_URL);
+    }
+
+    const mime = match[1];
+    const isBase64 = match[2];
+    const body = match[3];
+    const buffer = Buffer.from(decodeURIComponent(body), isBase64 ? 'base64' : 'utf8');
+
+    if (asBlob) {
+      if (!_Blob) {
+        throw new AxiosError('Blob is not supported', AxiosError.ERR_NOT_SUPPORT);
+      }
+
+      return new _Blob([buffer], {type: mime});
+    }
+
+    return buffer;
+  }
+
+  throw new AxiosError('Unsupported protocol ' + protocol, AxiosError.ERR_NOT_SUPPORT);
+}
diff --git a/backend/node_modules/axios/lib/helpers/isAbsoluteURL.js b/backend/node_modules/axios/lib/helpers/isAbsoluteURL.js
new file mode 100644
index 0000000..4747a45
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/isAbsoluteURL.js
@@ -0,0 +1,15 @@
+'use strict';
+
+/**
+ * Determines whether the specified URL is absolute
+ *
+ * @param {string} url The URL to test
+ *
+ * @returns {boolean} True if the specified URL is absolute, otherwise false
+ */
+export default function isAbsoluteURL(url) {
+  // A URL is considered absolute if it begins with "<scheme>://" or "//" (protocol-relative URL).
+  // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed
+  // by any combination of letters, digits, plus, period, or hyphen.
+  return /^([a-z][a-z\d+\-.]*:)?\/\//i.test(url);
+}
diff --git a/backend/node_modules/axios/lib/helpers/isAxiosError.js b/backend/node_modules/axios/lib/helpers/isAxiosError.js
new file mode 100644
index 0000000..da6cd63
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/isAxiosError.js
@@ -0,0 +1,14 @@
+'use strict';
+
+import utils from './../utils.js';
+
+/**
+ * Determines whether the payload is an error thrown by Axios
+ *
+ * @param {*} payload The value to test
+ *
+ * @returns {boolean} True if the payload is an error thrown by Axios, otherwise false
+ */
+export default function isAxiosError(payload) {
+  return utils.isObject(payload) && (payload.isAxiosError === true);
+}
diff --git a/backend/node_modules/axios/lib/helpers/isURLSameOrigin.js b/backend/node_modules/axios/lib/helpers/isURLSameOrigin.js
new file mode 100644
index 0000000..6a92aa1
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/isURLSameOrigin.js
@@ -0,0 +1,14 @@
+import platform from '../platform/index.js';
+
+export default platform.hasStandardBrowserEnv ? ((origin, isMSIE) => (url) => {
+  url = new URL(url, platform.origin);
+
+  return (
+    origin.protocol === url.protocol &&
+    origin.host === url.host &&
+    (isMSIE || origin.port === url.port)
+  );
+})(
+  new URL(platform.origin),
+  platform.navigator && /(msie|trident)/i.test(platform.navigator.userAgent)
+) : () => true;
diff --git a/backend/node_modules/axios/lib/helpers/null.js b/backend/node_modules/axios/lib/helpers/null.js
new file mode 100644
index 0000000..b9f82c4
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/null.js
@@ -0,0 +1,2 @@
+// eslint-disable-next-line strict
+export default null;
diff --git a/backend/node_modules/axios/lib/helpers/parseHeaders.js b/backend/node_modules/axios/lib/helpers/parseHeaders.js
new file mode 100644
index 0000000..50af948
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/parseHeaders.js
@@ -0,0 +1,55 @@
+'use strict';
+
+import utils from './../utils.js';
+
+// RawAxiosHeaders whose duplicates are ignored by node
+// c.f. https://nodejs.org/api/http.html#http_message_headers
+const ignoreDuplicateOf = utils.toObjectSet([
+  'age', 'authorization', 'content-length', 'content-type', 'etag',
+  'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since',
+  'last-modified', 'location', 'max-forwards', 'proxy-authorization',
+  'referer', 'retry-after', 'user-agent'
+]);
+
+/**
+ * Parse headers into an object
+ *
+ * ```
+ * Date: Wed, 27 Aug 2014 08:58:49 GMT
+ * Content-Type: application/json
+ * Connection: keep-alive
+ * Transfer-Encoding: chunked
+ * ```
+ *
+ * @param {String} rawHeaders Headers needing to be parsed
+ *
+ * @returns {Object} Headers parsed into an object
+ */
+export default rawHeaders => {
+  const parsed = {};
+  let key;
+  let val;
+  let i;
+
+  rawHeaders && rawHeaders.split('\n').forEach(function parser(line) {
+    i = line.indexOf(':');
+    key = line.substring(0, i).trim().toLowerCase();
+    val = line.substring(i + 1).trim();
+
+    if (!key || (parsed[key] && ignoreDuplicateOf[key])) {
+      return;
+    }
+
+    if (key === 'set-cookie') {
+      if (parsed[key]) {
+        parsed[key].push(val);
+      } else {
+        parsed[key] = [val];
+      }
+    } else {
+      parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;
+    }
+  });
+
+  return parsed;
+};
diff --git a/backend/node_modules/axios/lib/helpers/parseProtocol.js b/backend/node_modules/axios/lib/helpers/parseProtocol.js
new file mode 100644
index 0000000..586ec96
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/parseProtocol.js
@@ -0,0 +1,6 @@
+'use strict';
+
+export default function parseProtocol(url) {
+  const match = /^([-+\w]{1,25})(:?\/\/|:)/.exec(url);
+  return match && match[1] || '';
+}
diff --git a/backend/node_modules/axios/lib/helpers/progressEventReducer.js b/backend/node_modules/axios/lib/helpers/progressEventReducer.js
new file mode 100644
index 0000000..ff601cc
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/progressEventReducer.js
@@ -0,0 +1,44 @@
+import speedometer from "./speedometer.js";
+import throttle from "./throttle.js";
+import utils from "../utils.js";
+
+export const progressEventReducer = (listener, isDownloadStream, freq = 3) => {
+  let bytesNotified = 0;
+  const _speedometer = speedometer(50, 250);
+
+  return throttle(e => {
+    const loaded = e.loaded;
+    const total = e.lengthComputable ? e.total : undefined;
+    const progressBytes = loaded - bytesNotified;
+    const rate = _speedometer(progressBytes);
+    const inRange = loaded <= total;
+
+    bytesNotified = loaded;
+
+    const data = {
+      loaded,
+      total,
+      progress: total ? (loaded / total) : undefined,
+      bytes: progressBytes,
+      rate: rate ? rate : undefined,
+      estimated: rate && total && inRange ? (total - loaded) / rate : undefined,
+      event: e,
+      lengthComputable: total != null,
+      [isDownloadStream ? 'download' : 'upload']: true
+    };
+
+    listener(data);
+  }, freq);
+}
+
+export const progressEventDecorator = (total, throttled) => {
+  const lengthComputable = total != null;
+
+  return [(loaded) => throttled[0]({
+    lengthComputable,
+    total,
+    loaded
+  }), throttled[1]];
+}
+
+export const asyncDecorator = (fn) => (...args) => utils.asap(() => fn(...args));
diff --git a/backend/node_modules/axios/lib/helpers/readBlob.js b/backend/node_modules/axios/lib/helpers/readBlob.js
new file mode 100644
index 0000000..6de748e
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/readBlob.js
@@ -0,0 +1,15 @@
+const {asyncIterator} = Symbol;
+
+const readBlob = async function* (blob) {
+  if (blob.stream) {
+    yield* blob.stream()
+  } else if (blob.arrayBuffer) {
+    yield await blob.arrayBuffer()
+  } else if (blob[asyncIterator]) {
+    yield* blob[asyncIterator]();
+  } else {
+    yield blob;
+  }
+}
+
+export default readBlob;
diff --git a/backend/node_modules/axios/lib/helpers/resolveConfig.js b/backend/node_modules/axios/lib/helpers/resolveConfig.js
new file mode 100644
index 0000000..5e84c5c
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/resolveConfig.js
@@ -0,0 +1,57 @@
+import platform from "../platform/index.js";
+import utils from "../utils.js";
+import isURLSameOrigin from "./isURLSameOrigin.js";
+import cookies from "./cookies.js";
+import buildFullPath from "../core/buildFullPath.js";
+import mergeConfig from "../core/mergeConfig.js";
+import AxiosHeaders from "../core/AxiosHeaders.js";
+import buildURL from "./buildURL.js";
+
+export default (config) => {
+  const newConfig = mergeConfig({}, config);
+
+  let {data, withXSRFToken, xsrfHeaderName, xsrfCookieName, headers, auth} = newConfig;
+
+  newConfig.headers = headers = AxiosHeaders.from(headers);
+
+  newConfig.url = buildURL(buildFullPath(newConfig.baseURL, newConfig.url), config.params, config.paramsSerializer);
+
+  // HTTP basic authentication
+  if (auth) {
+    headers.set('Authorization', 'Basic ' +
+      btoa((auth.username || '') + ':' + (auth.password ? unescape(encodeURIComponent(auth.password)) : ''))
+    );
+  }
+
+  let contentType;
+
+  if (utils.isFormData(data)) {
+    if (platform.hasStandardBrowserEnv || platform.hasStandardBrowserWebWorkerEnv) {
+      headers.setContentType(undefined); // Let the browser set it
+    } else if ((contentType = headers.getContentType()) !== false) {
+      // fix semicolon duplication issue for ReactNative FormData implementation
+      const [type, ...tokens] = contentType ? contentType.split(';').map(token => token.trim()).filter(Boolean) : [];
+      headers.setContentType([type || 'multipart/form-data', ...tokens].join('; '));
+    }
+  }
+
+  // Add xsrf header
+  // This is only done if running in a standard browser environment.
+  // Specifically not if we're in a web worker, or react-native.
+
+  if (platform.hasStandardBrowserEnv) {
+    withXSRFToken && utils.isFunction(withXSRFToken) && (withXSRFToken = withXSRFToken(newConfig));
+
+    if (withXSRFToken || (withXSRFToken !== false && isURLSameOrigin(newConfig.url))) {
+      // Add xsrf header
+      const xsrfValue = xsrfHeaderName && xsrfCookieName && cookies.read(xsrfCookieName);
+
+      if (xsrfValue) {
+        headers.set(xsrfHeaderName, xsrfValue);
+      }
+    }
+  }
+
+  return newConfig;
+}
+
diff --git a/backend/node_modules/axios/lib/helpers/speedometer.js b/backend/node_modules/axios/lib/helpers/speedometer.js
new file mode 100644
index 0000000..3b3c666
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/speedometer.js
@@ -0,0 +1,55 @@
+'use strict';
+
+/**
+ * Calculate data maxRate
+ * @param {Number} [samplesCount= 10]
+ * @param {Number} [min= 1000]
+ * @returns {Function}
+ */
+function speedometer(samplesCount, min) {
+  samplesCount = samplesCount || 10;
+  const bytes = new Array(samplesCount);
+  const timestamps = new Array(samplesCount);
+  let head = 0;
+  let tail = 0;
+  let firstSampleTS;
+
+  min = min !== undefined ? min : 1000;
+
+  return function push(chunkLength) {
+    const now = Date.now();
+
+    const startedAt = timestamps[tail];
+
+    if (!firstSampleTS) {
+      firstSampleTS = now;
+    }
+
+    bytes[head] = chunkLength;
+    timestamps[head] = now;
+
+    let i = tail;
+    let bytesCount = 0;
+
+    while (i !== head) {
+      bytesCount += bytes[i++];
+      i = i % samplesCount;
+    }
+
+    head = (head + 1) % samplesCount;
+
+    if (head === tail) {
+      tail = (tail + 1) % samplesCount;
+    }
+
+    if (now - firstSampleTS < min) {
+      return;
+    }
+
+    const passed = startedAt && now - startedAt;
+
+    return passed ? Math.round(bytesCount * 1000 / passed) : undefined;
+  };
+}
+
+export default speedometer;
diff --git a/backend/node_modules/axios/lib/helpers/spread.js b/backend/node_modules/axios/lib/helpers/spread.js
new file mode 100644
index 0000000..13479cb
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/spread.js
@@ -0,0 +1,28 @@
+'use strict';
+
+/**
+ * Syntactic sugar for invoking a function and expanding an array for arguments.
+ *
+ * Common use case would be to use `Function.prototype.apply`.
+ *
+ *  ```js
+ *  function f(x, y, z) {}
+ *  var args = [1, 2, 3];
+ *  f.apply(null, args);
+ *  ```
+ *
+ * With `spread` this example can be re-written.
+ *
+ *  ```js
+ *  spread(function(x, y, z) {})([1, 2, 3]);
+ *  ```
+ *
+ * @param {Function} callback
+ *
+ * @returns {Function}
+ */
+export default function spread(callback) {
+  return function wrap(arr) {
+    return callback.apply(null, arr);
+  };
+}
diff --git a/backend/node_modules/axios/lib/helpers/throttle.js b/backend/node_modules/axios/lib/helpers/throttle.js
new file mode 100644
index 0000000..e256272
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/throttle.js
@@ -0,0 +1,44 @@
+/**
+ * Throttle decorator
+ * @param {Function} fn
+ * @param {Number} freq
+ * @return {Function}
+ */
+function throttle(fn, freq) {
+  let timestamp = 0;
+  let threshold = 1000 / freq;
+  let lastArgs;
+  let timer;
+
+  const invoke = (args, now = Date.now()) => {
+    timestamp = now;
+    lastArgs = null;
+    if (timer) {
+      clearTimeout(timer);
+      timer = null;
+    }
+    fn.apply(null, args);
+  }
+
+  const throttled = (...args) => {
+    const now = Date.now();
+    const passed = now - timestamp;
+    if ( passed >= threshold) {
+      invoke(args, now);
+    } else {
+      lastArgs = args;
+      if (!timer) {
+        timer = setTimeout(() => {
+          timer = null;
+          invoke(lastArgs)
+        }, threshold - passed);
+      }
+    }
+  }
+
+  const flush = () => lastArgs && invoke(lastArgs);
+
+  return [throttled, flush];
+}
+
+export default throttle;
diff --git a/backend/node_modules/axios/lib/helpers/toFormData.js b/backend/node_modules/axios/lib/helpers/toFormData.js
new file mode 100644
index 0000000..a41e966
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/toFormData.js
@@ -0,0 +1,219 @@
+'use strict';
+
+import utils from '../utils.js';
+import AxiosError from '../core/AxiosError.js';
+// temporary hotfix to avoid circular references until AxiosURLSearchParams is refactored
+import PlatformFormData from '../platform/node/classes/FormData.js';
+
+/**
+ * Determines if the given thing is a array or js object.
+ *
+ * @param {string} thing - The object or array to be visited.
+ *
+ * @returns {boolean}
+ */
+function isVisitable(thing) {
+  return utils.isPlainObject(thing) || utils.isArray(thing);
+}
+
+/**
+ * It removes the brackets from the end of a string
+ *
+ * @param {string} key - The key of the parameter.
+ *
+ * @returns {string} the key without the brackets.
+ */
+function removeBrackets(key) {
+  return utils.endsWith(key, '[]') ? key.slice(0, -2) : key;
+}
+
+/**
+ * It takes a path, a key, and a boolean, and returns a string
+ *
+ * @param {string} path - The path to the current key.
+ * @param {string} key - The key of the current object being iterated over.
+ * @param {string} dots - If true, the key will be rendered with dots instead of brackets.
+ *
+ * @returns {string} The path to the current key.
+ */
+function renderKey(path, key, dots) {
+  if (!path) return key;
+  return path.concat(key).map(function each(token, i) {
+    // eslint-disable-next-line no-param-reassign
+    token = removeBrackets(token);
+    return !dots && i ? '[' + token + ']' : token;
+  }).join(dots ? '.' : '');
+}
+
+/**
+ * If the array is an array and none of its elements are visitable, then it's a flat array.
+ *
+ * @param {Array<any>} arr - The array to check
+ *
+ * @returns {boolean}
+ */
+function isFlatArray(arr) {
+  return utils.isArray(arr) && !arr.some(isVisitable);
+}
+
+const predicates = utils.toFlatObject(utils, {}, null, function filter(prop) {
+  return /^is[A-Z]/.test(prop);
+});
+
+/**
+ * Convert a data object to FormData
+ *
+ * @param {Object} obj
+ * @param {?Object} [formData]
+ * @param {?Object} [options]
+ * @param {Function} [options.visitor]
+ * @param {Boolean} [options.metaTokens = true]
+ * @param {Boolean} [options.dots = false]
+ * @param {?Boolean} [options.indexes = false]
+ *
+ * @returns {Object}
+ **/
+
+/**
+ * It converts an object into a FormData object
+ *
+ * @param {Object<any, any>} obj - The object to convert to form data.
+ * @param {string} formData - The FormData object to append to.
+ * @param {Object<string, any>} options
+ *
+ * @returns
+ */
+function toFormData(obj, formData, options) {
+  if (!utils.isObject(obj)) {
+    throw new TypeError('target must be an object');
+  }
+
+  // eslint-disable-next-line no-param-reassign
+  formData = formData || new (PlatformFormData || FormData)();
+
+  // eslint-disable-next-line no-param-reassign
+  options = utils.toFlatObject(options, {
+    metaTokens: true,
+    dots: false,
+    indexes: false
+  }, false, function defined(option, source) {
+    // eslint-disable-next-line no-eq-null,eqeqeq
+    return !utils.isUndefined(source[option]);
+  });
+
+  const metaTokens = options.metaTokens;
+  // eslint-disable-next-line no-use-before-define
+  const visitor = options.visitor || defaultVisitor;
+  const dots = options.dots;
+  const indexes = options.indexes;
+  const _Blob = options.Blob || typeof Blob !== 'undefined' && Blob;
+  const useBlob = _Blob && utils.isSpecCompliantForm(formData);
+
+  if (!utils.isFunction(visitor)) {
+    throw new TypeError('visitor must be a function');
+  }
+
+  function convertValue(value) {
+    if (value === null) return '';
+
+    if (utils.isDate(value)) {
+      return value.toISOString();
+    }
+
+    if (!useBlob && utils.isBlob(value)) {
+      throw new AxiosError('Blob is not supported. Use a Buffer instead.');
+    }
+
+    if (utils.isArrayBuffer(value) || utils.isTypedArray(value)) {
+      return useBlob && typeof Blob === 'function' ? new Blob([value]) : Buffer.from(value);
+    }
+
+    return value;
+  }
+
+  /**
+   * Default visitor.
+   *
+   * @param {*} value
+   * @param {String|Number} key
+   * @param {Array<String|Number>} path
+   * @this {FormData}
+   *
+   * @returns {boolean} return true to visit the each prop of the value recursively
+   */
+  function defaultVisitor(value, key, path) {
+    let arr = value;
+
+    if (value && !path && typeof value === 'object') {
+      if (utils.endsWith(key, '{}')) {
+        // eslint-disable-next-line no-param-reassign
+        key = metaTokens ? key : key.slice(0, -2);
+        // eslint-disable-next-line no-param-reassign
+        value = JSON.stringify(value);
+      } else if (
+        (utils.isArray(value) && isFlatArray(value)) ||
+        ((utils.isFileList(value) || utils.endsWith(key, '[]')) && (arr = utils.toArray(value))
+        )) {
+        // eslint-disable-next-line no-param-reassign
+        key = removeBrackets(key);
+
+        arr.forEach(function each(el, index) {
+          !(utils.isUndefined(el) || el === null) && formData.append(
+            // eslint-disable-next-line no-nested-ternary
+            indexes === true ? renderKey([key], index, dots) : (indexes === null ? key : key + '[]'),
+            convertValue(el)
+          );
+        });
+        return false;
+      }
+    }
+
+    if (isVisitable(value)) {
+      return true;
+    }
+
+    formData.append(renderKey(path, key, dots), convertValue(value));
+
+    return false;
+  }
+
+  const stack = [];
+
+  const exposedHelpers = Object.assign(predicates, {
+    defaultVisitor,
+    convertValue,
+    isVisitable
+  });
+
+  function build(value, path) {
+    if (utils.isUndefined(value)) return;
+
+    if (stack.indexOf(value) !== -1) {
+      throw Error('Circular reference detected in ' + path.join('.'));
+    }
+
+    stack.push(value);
+
+    utils.forEach(value, function each(el, key) {
+      const result = !(utils.isUndefined(el) || el === null) && visitor.call(
+        formData, el, utils.isString(key) ? key.trim() : key, path, exposedHelpers
+      );
+
+      if (result === true) {
+        build(el, path ? path.concat(key) : [key]);
+      }
+    });
+
+    stack.pop();
+  }
+
+  if (!utils.isObject(obj)) {
+    throw new TypeError('data must be an object');
+  }
+
+  build(obj);
+
+  return formData;
+}
+
+export default toFormData;
diff --git a/backend/node_modules/axios/lib/helpers/toURLEncodedForm.js b/backend/node_modules/axios/lib/helpers/toURLEncodedForm.js
new file mode 100644
index 0000000..988a38a
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/toURLEncodedForm.js
@@ -0,0 +1,18 @@
+'use strict';
+
+import utils from '../utils.js';
+import toFormData from './toFormData.js';
+import platform from '../platform/index.js';
+
+export default function toURLEncodedForm(data, options) {
+  return toFormData(data, new platform.classes.URLSearchParams(), Object.assign({
+    visitor: function(value, key, path, helpers) {
+      if (platform.isNode && utils.isBuffer(value)) {
+        this.append(key, value.toString('base64'));
+        return false;
+      }
+
+      return helpers.defaultVisitor.apply(this, arguments);
+    }
+  }, options));
+}
diff --git a/backend/node_modules/axios/lib/helpers/trackStream.js b/backend/node_modules/axios/lib/helpers/trackStream.js
new file mode 100644
index 0000000..95d6008
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/trackStream.js
@@ -0,0 +1,87 @@
+
+export const streamChunk = function* (chunk, chunkSize) {
+  let len = chunk.byteLength;
+
+  if (!chunkSize || len < chunkSize) {
+    yield chunk;
+    return;
+  }
+
+  let pos = 0;
+  let end;
+
+  while (pos < len) {
+    end = pos + chunkSize;
+    yield chunk.slice(pos, end);
+    pos = end;
+  }
+}
+
+export const readBytes = async function* (iterable, chunkSize) {
+  for await (const chunk of readStream(iterable)) {
+    yield* streamChunk(chunk, chunkSize);
+  }
+}
+
+const readStream = async function* (stream) {
+  if (stream[Symbol.asyncIterator]) {
+    yield* stream;
+    return;
+  }
+
+  const reader = stream.getReader();
+  try {
+    for (;;) {
+      const {done, value} = await reader.read();
+      if (done) {
+        break;
+      }
+      yield value;
+    }
+  } finally {
+    await reader.cancel();
+  }
+}
+
+export const trackStream = (stream, chunkSize, onProgress, onFinish) => {
+  const iterator = readBytes(stream, chunkSize);
+
+  let bytes = 0;
+  let done;
+  let _onFinish = (e) => {
+    if (!done) {
+      done = true;
+      onFinish && onFinish(e);
+    }
+  }
+
+  return new ReadableStream({
+    async pull(controller) {
+      try {
+        const {done, value} = await iterator.next();
+
+        if (done) {
+         _onFinish();
+          controller.close();
+          return;
+        }
+
+        let len = value.byteLength;
+        if (onProgress) {
+          let loadedBytes = bytes += len;
+          onProgress(loadedBytes);
+        }
+        controller.enqueue(new Uint8Array(value));
+      } catch (err) {
+        _onFinish(err);
+        throw err;
+      }
+    },
+    cancel(reason) {
+      _onFinish(reason);
+      return iterator.return();
+    }
+  }, {
+    highWaterMark: 2
+  })
+}
diff --git a/backend/node_modules/axios/lib/helpers/validator.js b/backend/node_modules/axios/lib/helpers/validator.js
new file mode 100644
index 0000000..1270568
--- /dev/null
+++ b/backend/node_modules/axios/lib/helpers/validator.js
@@ -0,0 +1,99 @@
+'use strict';
+
+import {VERSION} from '../env/data.js';
+import AxiosError from '../core/AxiosError.js';
+
+const validators = {};
+
+// eslint-disable-next-line func-names
+['object', 'boolean', 'number', 'function', 'string', 'symbol'].forEach((type, i) => {
+  validators[type] = function validator(thing) {
+    return typeof thing === type || 'a' + (i < 1 ? 'n ' : ' ') + type;
+  };
+});
+
+const deprecatedWarnings = {};
+
+/**
+ * Transitional option validator
+ *
+ * @param {function|boolean?} validator - set to false if the transitional option has been removed
+ * @param {string?} version - deprecated version / removed since version
+ * @param {string?} message - some message with additional info
+ *
+ * @returns {function}
+ */
+validators.transitional = function transitional(validator, version, message) {
+  function formatMessage(opt, desc) {
+    return '[Axios v' + VERSION + '] Transitional option \'' + opt + '\'' + desc + (message ? '. ' + message : '');
+  }
+
+  // eslint-disable-next-line func-names
+  return (value, opt, opts) => {
+    if (validator === false) {
+      throw new AxiosError(
+        formatMessage(opt, ' has been removed' + (version ? ' in ' + version : '')),
+        AxiosError.ERR_DEPRECATED
+      );
+    }
+
+    if (version && !deprecatedWarnings[opt]) {
+      deprecatedWarnings[opt] = true;
+      // eslint-disable-next-line no-console
+      console.warn(
+        formatMessage(
+          opt,
+          ' has been deprecated since v' + version + ' and will be removed in the near future'
+        )
+      );
+    }
+
+    return validator ? validator(value, opt, opts) : true;
+  };
+};
+
+validators.spelling = function spelling(correctSpelling) {
+  return (value, opt) => {
+    // eslint-disable-next-line no-console
+    console.warn(`${opt} is likely a misspelling of ${correctSpelling}`);
+    return true;
+  }
+};
+
+/**
+ * Assert object's properties type
+ *
+ * @param {object} options
+ * @param {object} schema
+ * @param {boolean?} allowUnknown
+ *
+ * @returns {object}
+ */
+
+function assertOptions(options, schema, allowUnknown) {
+  if (typeof options !== 'object') {
+    throw new AxiosError('options must be an object', AxiosError.ERR_BAD_OPTION_VALUE);
+  }
+  const keys = Object.keys(options);
+  let i = keys.length;
+  while (i-- > 0) {
+    const opt = keys[i];
+    const validator = schema[opt];
+    if (validator) {
+      const value = options[opt];
+      const result = value === undefined || validator(value, opt, options);
+      if (result !== true) {
+        throw new AxiosError('option ' + opt + ' must be ' + result, AxiosError.ERR_BAD_OPTION_VALUE);
+      }
+      continue;
+    }
+    if (allowUnknown !== true) {
+      throw new AxiosError('Unknown option ' + opt, AxiosError.ERR_BAD_OPTION);
+    }
+  }
+}
+
+export default {
+  assertOptions,
+  validators
+};
diff --git a/backend/node_modules/axios/lib/platform/browser/classes/Blob.js b/backend/node_modules/axios/lib/platform/browser/classes/Blob.js
new file mode 100644
index 0000000..6c506c4
--- /dev/null
+++ b/backend/node_modules/axios/lib/platform/browser/classes/Blob.js
@@ -0,0 +1,3 @@
+'use strict'
+
+export default typeof Blob !== 'undefined' ? Blob : null
diff --git a/backend/node_modules/axios/lib/platform/browser/classes/FormData.js b/backend/node_modules/axios/lib/platform/browser/classes/FormData.js
new file mode 100644
index 0000000..f36d31b
--- /dev/null
+++ b/backend/node_modules/axios/lib/platform/browser/classes/FormData.js
@@ -0,0 +1,3 @@
+'use strict';
+
+export default typeof FormData !== 'undefined' ? FormData : null;
diff --git a/backend/node_modules/axios/lib/platform/browser/classes/URLSearchParams.js b/backend/node_modules/axios/lib/platform/browser/classes/URLSearchParams.js
new file mode 100644
index 0000000..b7dae95
--- /dev/null
+++ b/backend/node_modules/axios/lib/platform/browser/classes/URLSearchParams.js
@@ -0,0 +1,4 @@
+'use strict';
+
+import AxiosURLSearchParams from '../../../helpers/AxiosURLSearchParams.js';
+export default typeof URLSearchParams !== 'undefined' ? URLSearchParams : AxiosURLSearchParams;
diff --git a/backend/node_modules/axios/lib/platform/browser/index.js b/backend/node_modules/axios/lib/platform/browser/index.js
new file mode 100644
index 0000000..08c206f
--- /dev/null
+++ b/backend/node_modules/axios/lib/platform/browser/index.js
@@ -0,0 +1,13 @@
+import URLSearchParams from './classes/URLSearchParams.js'
+import FormData from './classes/FormData.js'
+import Blob from './classes/Blob.js'
+
+export default {
+  isBrowser: true,
+  classes: {
+    URLSearchParams,
+    FormData,
+    Blob
+  },
+  protocols: ['http', 'https', 'file', 'blob', 'url', 'data']
+};
diff --git a/backend/node_modules/axios/lib/platform/common/utils.js b/backend/node_modules/axios/lib/platform/common/utils.js
new file mode 100644
index 0000000..52a3186
--- /dev/null
+++ b/backend/node_modules/axios/lib/platform/common/utils.js
@@ -0,0 +1,51 @@
+const hasBrowserEnv = typeof window !== 'undefined' && typeof document !== 'undefined';
+
+const _navigator = typeof navigator === 'object' && navigator || undefined;
+
+/**
+ * Determine if we're running in a standard browser environment
+ *
+ * This allows axios to run in a web worker, and react-native.
+ * Both environments support XMLHttpRequest, but not fully standard globals.
+ *
+ * web workers:
+ *  typeof window -> undefined
+ *  typeof document -> undefined
+ *
+ * react-native:
+ *  navigator.product -> 'ReactNative'
+ * nativescript
+ *  navigator.product -> 'NativeScript' or 'NS'
+ *
+ * @returns {boolean}
+ */
+const hasStandardBrowserEnv = hasBrowserEnv &&
+  (!_navigator || ['ReactNative', 'NativeScript', 'NS'].indexOf(_navigator.product) < 0);
+
+/**
+ * Determine if we're running in a standard browser webWorker environment
+ *
+ * Although the `isStandardBrowserEnv` method indicates that
+ * `allows axios to run in a web worker`, the WebWorker will still be
+ * filtered out due to its judgment standard
+ * `typeof window !== 'undefined' && typeof document !== 'undefined'`.
+ * This leads to a problem when axios post `FormData` in webWorker
+ */
+const hasStandardBrowserWebWorkerEnv = (() => {
+  return (
+    typeof WorkerGlobalScope !== 'undefined' &&
+    // eslint-disable-next-line no-undef
+    self instanceof WorkerGlobalScope &&
+    typeof self.importScripts === 'function'
+  );
+})();
+
+const origin = hasBrowserEnv && window.location.href || 'http://localhost';
+
+export {
+  hasBrowserEnv,
+  hasStandardBrowserWebWorkerEnv,
+  hasStandardBrowserEnv,
+  _navigator as navigator,
+  origin
+}
diff --git a/backend/node_modules/axios/lib/platform/index.js b/backend/node_modules/axios/lib/platform/index.js
new file mode 100644
index 0000000..860ba21
--- /dev/null
+++ b/backend/node_modules/axios/lib/platform/index.js
@@ -0,0 +1,7 @@
+import platform from './node/index.js';
+import * as utils from './common/utils.js';
+
+export default {
+  ...utils,
+  ...platform
+}
diff --git a/backend/node_modules/axios/lib/platform/node/classes/FormData.js b/backend/node_modules/axios/lib/platform/node/classes/FormData.js
new file mode 100644
index 0000000..b07f947
--- /dev/null
+++ b/backend/node_modules/axios/lib/platform/node/classes/FormData.js
@@ -0,0 +1,3 @@
+import FormData from 'form-data';
+
+export default FormData;
diff --git a/backend/node_modules/axios/lib/platform/node/classes/URLSearchParams.js b/backend/node_modules/axios/lib/platform/node/classes/URLSearchParams.js
new file mode 100644
index 0000000..fba5842
--- /dev/null
+++ b/backend/node_modules/axios/lib/platform/node/classes/URLSearchParams.js
@@ -0,0 +1,4 @@
+'use strict';
+
+import url from 'url';
+export default url.URLSearchParams;
diff --git a/backend/node_modules/axios/lib/platform/node/index.js b/backend/node_modules/axios/lib/platform/node/index.js
new file mode 100644
index 0000000..aef514a
--- /dev/null
+++ b/backend/node_modules/axios/lib/platform/node/index.js
@@ -0,0 +1,12 @@
+import URLSearchParams from './classes/URLSearchParams.js'
+import FormData from './classes/FormData.js'
+
+export default {
+  isNode: true,
+  classes: {
+    URLSearchParams,
+    FormData,
+    Blob: typeof Blob !== 'undefined' && Blob || null
+  },
+  protocols: [ 'http', 'https', 'file', 'data' ]
+};
diff --git a/backend/node_modules/axios/lib/utils.js b/backend/node_modules/axios/lib/utils.js
new file mode 100644
index 0000000..32679da
--- /dev/null
+++ b/backend/node_modules/axios/lib/utils.js
@@ -0,0 +1,760 @@
+'use strict';
+
+import bind from './helpers/bind.js';
+
+// utils is a library of generic helper functions non-specific to axios
+
+const {toString} = Object.prototype;
+const {getPrototypeOf} = Object;
+
+const kindOf = (cache => thing => {
+    const str = toString.call(thing);
+    return cache[str] || (cache[str] = str.slice(8, -1).toLowerCase());
+})(Object.create(null));
+
+const kindOfTest = (type) => {
+  type = type.toLowerCase();
+  return (thing) => kindOf(thing) === type
+}
+
+const typeOfTest = type => thing => typeof thing === type;
+
+/**
+ * Determine if a value is an Array
+ *
+ * @param {Object} val The value to test
+ *
+ * @returns {boolean} True if value is an Array, otherwise false
+ */
+const {isArray} = Array;
+
+/**
+ * Determine if a value is undefined
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if the value is undefined, otherwise false
+ */
+const isUndefined = typeOfTest('undefined');
+
+/**
+ * Determine if a value is a Buffer
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a Buffer, otherwise false
+ */
+function isBuffer(val) {
+  return val !== null && !isUndefined(val) && val.constructor !== null && !isUndefined(val.constructor)
+    && isFunction(val.constructor.isBuffer) && val.constructor.isBuffer(val);
+}
+
+/**
+ * Determine if a value is an ArrayBuffer
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is an ArrayBuffer, otherwise false
+ */
+const isArrayBuffer = kindOfTest('ArrayBuffer');
+
+
+/**
+ * Determine if a value is a view on an ArrayBuffer
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false
+ */
+function isArrayBufferView(val) {
+  let result;
+  if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) {
+    result = ArrayBuffer.isView(val);
+  } else {
+    result = (val) && (val.buffer) && (isArrayBuffer(val.buffer));
+  }
+  return result;
+}
+
+/**
+ * Determine if a value is a String
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a String, otherwise false
+ */
+const isString = typeOfTest('string');
+
+/**
+ * Determine if a value is a Function
+ *
+ * @param {*} val The value to test
+ * @returns {boolean} True if value is a Function, otherwise false
+ */
+const isFunction = typeOfTest('function');
+
+/**
+ * Determine if a value is a Number
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a Number, otherwise false
+ */
+const isNumber = typeOfTest('number');
+
+/**
+ * Determine if a value is an Object
+ *
+ * @param {*} thing The value to test
+ *
+ * @returns {boolean} True if value is an Object, otherwise false
+ */
+const isObject = (thing) => thing !== null && typeof thing === 'object';
+
+/**
+ * Determine if a value is a Boolean
+ *
+ * @param {*} thing The value to test
+ * @returns {boolean} True if value is a Boolean, otherwise false
+ */
+const isBoolean = thing => thing === true || thing === false;
+
+/**
+ * Determine if a value is a plain Object
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a plain Object, otherwise false
+ */
+const isPlainObject = (val) => {
+  if (kindOf(val) !== 'object') {
+    return false;
+  }
+
+  const prototype = getPrototypeOf(val);
+  return (prototype === null || prototype === Object.prototype || Object.getPrototypeOf(prototype) === null) && !(Symbol.toStringTag in val) && !(Symbol.iterator in val);
+}
+
+/**
+ * Determine if a value is a Date
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a Date, otherwise false
+ */
+const isDate = kindOfTest('Date');
+
+/**
+ * Determine if a value is a File
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a File, otherwise false
+ */
+const isFile = kindOfTest('File');
+
+/**
+ * Determine if a value is a Blob
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a Blob, otherwise false
+ */
+const isBlob = kindOfTest('Blob');
+
+/**
+ * Determine if a value is a FileList
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a File, otherwise false
+ */
+const isFileList = kindOfTest('FileList');
+
+/**
+ * Determine if a value is a Stream
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a Stream, otherwise false
+ */
+const isStream = (val) => isObject(val) && isFunction(val.pipe);
+
+/**
+ * Determine if a value is a FormData
+ *
+ * @param {*} thing The value to test
+ *
+ * @returns {boolean} True if value is an FormData, otherwise false
+ */
+const isFormData = (thing) => {
+  let kind;
+  return thing && (
+    (typeof FormData === 'function' && thing instanceof FormData) || (
+      isFunction(thing.append) && (
+        (kind = kindOf(thing)) === 'formdata' ||
+        // detect form-data instance
+        (kind === 'object' && isFunction(thing.toString) && thing.toString() === '[object FormData]')
+      )
+    )
+  )
+}
+
+/**
+ * Determine if a value is a URLSearchParams object
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a URLSearchParams object, otherwise false
+ */
+const isURLSearchParams = kindOfTest('URLSearchParams');
+
+const [isReadableStream, isRequest, isResponse, isHeaders] = ['ReadableStream', 'Request', 'Response', 'Headers'].map(kindOfTest);
+
+/**
+ * Trim excess whitespace off the beginning and end of a string
+ *
+ * @param {String} str The String to trim
+ *
+ * @returns {String} The String freed of excess whitespace
+ */
+const trim = (str) => str.trim ?
+  str.trim() : str.replace(/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, '');
+
+/**
+ * Iterate over an Array or an Object invoking a function for each item.
+ *
+ * If `obj` is an Array callback will be called passing
+ * the value, index, and complete array for each item.
+ *
+ * If 'obj' is an Object callback will be called passing
+ * the value, key, and complete object for each property.
+ *
+ * @param {Object|Array} obj The object to iterate
+ * @param {Function} fn The callback to invoke for each item
+ *
+ * @param {Boolean} [allOwnKeys = false]
+ * @returns {any}
+ */
+function forEach(obj, fn, {allOwnKeys = false} = {}) {
+  // Don't bother if no value provided
+  if (obj === null || typeof obj === 'undefined') {
+    return;
+  }
+
+  let i;
+  let l;
+
+  // Force an array if not already something iterable
+  if (typeof obj !== 'object') {
+    /*eslint no-param-reassign:0*/
+    obj = [obj];
+  }
+
+  if (isArray(obj)) {
+    // Iterate over array values
+    for (i = 0, l = obj.length; i < l; i++) {
+      fn.call(null, obj[i], i, obj);
+    }
+  } else {
+    // Iterate over object keys
+    const keys = allOwnKeys ? Object.getOwnPropertyNames(obj) : Object.keys(obj);
+    const len = keys.length;
+    let key;
+
+    for (i = 0; i < len; i++) {
+      key = keys[i];
+      fn.call(null, obj[key], key, obj);
+    }
+  }
+}
+
+function findKey(obj, key) {
+  key = key.toLowerCase();
+  const keys = Object.keys(obj);
+  let i = keys.length;
+  let _key;
+  while (i-- > 0) {
+    _key = keys[i];
+    if (key === _key.toLowerCase()) {
+      return _key;
+    }
+  }
+  return null;
+}
+
+const _global = (() => {
+  /*eslint no-undef:0*/
+  if (typeof globalThis !== "undefined") return globalThis;
+  return typeof self !== "undefined" ? self : (typeof window !== 'undefined' ? window : global)
+})();
+
+const isContextDefined = (context) => !isUndefined(context) && context !== _global;
+
+/**
+ * Accepts varargs expecting each argument to be an object, then
+ * immutably merges the properties of each object and returns result.
+ *
+ * When multiple objects contain the same key the later object in
+ * the arguments list will take precedence.
+ *
+ * Example:
+ *
+ * ```js
+ * var result = merge({foo: 123}, {foo: 456});
+ * console.log(result.foo); // outputs 456
+ * ```
+ *
+ * @param {Object} obj1 Object to merge
+ *
+ * @returns {Object} Result of all merge properties
+ */
+function merge(/* obj1, obj2, obj3, ... */) {
+  const {caseless} = isContextDefined(this) && this || {};
+  const result = {};
+  const assignValue = (val, key) => {
+    const targetKey = caseless && findKey(result, key) || key;
+    if (isPlainObject(result[targetKey]) && isPlainObject(val)) {
+      result[targetKey] = merge(result[targetKey], val);
+    } else if (isPlainObject(val)) {
+      result[targetKey] = merge({}, val);
+    } else if (isArray(val)) {
+      result[targetKey] = val.slice();
+    } else {
+      result[targetKey] = val;
+    }
+  }
+
+  for (let i = 0, l = arguments.length; i < l; i++) {
+    arguments[i] && forEach(arguments[i], assignValue);
+  }
+  return result;
+}
+
+/**
+ * Extends object a by mutably adding to it the properties of object b.
+ *
+ * @param {Object} a The object to be extended
+ * @param {Object} b The object to copy properties from
+ * @param {Object} thisArg The object to bind function to
+ *
+ * @param {Boolean} [allOwnKeys]
+ * @returns {Object} The resulting value of object a
+ */
+const extend = (a, b, thisArg, {allOwnKeys}= {}) => {
+  forEach(b, (val, key) => {
+    if (thisArg && isFunction(val)) {
+      a[key] = bind(val, thisArg);
+    } else {
+      a[key] = val;
+    }
+  }, {allOwnKeys});
+  return a;
+}
+
+/**
+ * Remove byte order marker. This catches EF BB BF (the UTF-8 BOM)
+ *
+ * @param {string} content with BOM
+ *
+ * @returns {string} content value without BOM
+ */
+const stripBOM = (content) => {
+  if (content.charCodeAt(0) === 0xFEFF) {
+    content = content.slice(1);
+  }
+  return content;
+}
+
+/**
+ * Inherit the prototype methods from one constructor into another
+ * @param {function} constructor
+ * @param {function} superConstructor
+ * @param {object} [props]
+ * @param {object} [descriptors]
+ *
+ * @returns {void}
+ */
+const inherits = (constructor, superConstructor, props, descriptors) => {
+  constructor.prototype = Object.create(superConstructor.prototype, descriptors);
+  constructor.prototype.constructor = constructor;
+  Object.defineProperty(constructor, 'super', {
+    value: superConstructor.prototype
+  });
+  props && Object.assign(constructor.prototype, props);
+}
+
+/**
+ * Resolve object with deep prototype chain to a flat object
+ * @param {Object} sourceObj source object
+ * @param {Object} [destObj]
+ * @param {Function|Boolean} [filter]
+ * @param {Function} [propFilter]
+ *
+ * @returns {Object}
+ */
+const toFlatObject = (sourceObj, destObj, filter, propFilter) => {
+  let props;
+  let i;
+  let prop;
+  const merged = {};
+
+  destObj = destObj || {};
+  // eslint-disable-next-line no-eq-null,eqeqeq
+  if (sourceObj == null) return destObj;
+
+  do {
+    props = Object.getOwnPropertyNames(sourceObj);
+    i = props.length;
+    while (i-- > 0) {
+      prop = props[i];
+      if ((!propFilter || propFilter(prop, sourceObj, destObj)) && !merged[prop]) {
+        destObj[prop] = sourceObj[prop];
+        merged[prop] = true;
+      }
+    }
+    sourceObj = filter !== false && getPrototypeOf(sourceObj);
+  } while (sourceObj && (!filter || filter(sourceObj, destObj)) && sourceObj !== Object.prototype);
+
+  return destObj;
+}
+
+/**
+ * Determines whether a string ends with the characters of a specified string
+ *
+ * @param {String} str
+ * @param {String} searchString
+ * @param {Number} [position= 0]
+ *
+ * @returns {boolean}
+ */
+const endsWith = (str, searchString, position) => {
+  str = String(str);
+  if (position === undefined || position > str.length) {
+    position = str.length;
+  }
+  position -= searchString.length;
+  const lastIndex = str.indexOf(searchString, position);
+  return lastIndex !== -1 && lastIndex === position;
+}
+
+
+/**
+ * Returns new array from array like object or null if failed
+ *
+ * @param {*} [thing]
+ *
+ * @returns {?Array}
+ */
+const toArray = (thing) => {
+  if (!thing) return null;
+  if (isArray(thing)) return thing;
+  let i = thing.length;
+  if (!isNumber(i)) return null;
+  const arr = new Array(i);
+  while (i-- > 0) {
+    arr[i] = thing[i];
+  }
+  return arr;
+}
+
+/**
+ * Checking if the Uint8Array exists and if it does, it returns a function that checks if the
+ * thing passed in is an instance of Uint8Array
+ *
+ * @param {TypedArray}
+ *
+ * @returns {Array}
+ */
+// eslint-disable-next-line func-names
+const isTypedArray = (TypedArray => {
+  // eslint-disable-next-line func-names
+  return thing => {
+    return TypedArray && thing instanceof TypedArray;
+  };
+})(typeof Uint8Array !== 'undefined' && getPrototypeOf(Uint8Array));
+
+/**
+ * For each entry in the object, call the function with the key and value.
+ *
+ * @param {Object<any, any>} obj - The object to iterate over.
+ * @param {Function} fn - The function to call for each entry.
+ *
+ * @returns {void}
+ */
+const forEachEntry = (obj, fn) => {
+  const generator = obj && obj[Symbol.iterator];
+
+  const iterator = generator.call(obj);
+
+  let result;
+
+  while ((result = iterator.next()) && !result.done) {
+    const pair = result.value;
+    fn.call(obj, pair[0], pair[1]);
+  }
+}
+
+/**
+ * It takes a regular expression and a string, and returns an array of all the matches
+ *
+ * @param {string} regExp - The regular expression to match against.
+ * @param {string} str - The string to search.
+ *
+ * @returns {Array<boolean>}
+ */
+const matchAll = (regExp, str) => {
+  let matches;
+  const arr = [];
+
+  while ((matches = regExp.exec(str)) !== null) {
+    arr.push(matches);
+  }
+
+  return arr;
+}
+
+/* Checking if the kindOfTest function returns true when passed an HTMLFormElement. */
+const isHTMLForm = kindOfTest('HTMLFormElement');
+
+const toCamelCase = str => {
+  return str.toLowerCase().replace(/[-_\s]([a-z\d])(\w*)/g,
+    function replacer(m, p1, p2) {
+      return p1.toUpperCase() + p2;
+    }
+  );
+};
+
+/* Creating a function that will check if an object has a property. */
+const hasOwnProperty = (({hasOwnProperty}) => (obj, prop) => hasOwnProperty.call(obj, prop))(Object.prototype);
+
+/**
+ * Determine if a value is a RegExp object
+ *
+ * @param {*} val The value to test
+ *
+ * @returns {boolean} True if value is a RegExp object, otherwise false
+ */
+const isRegExp = kindOfTest('RegExp');
+
+const reduceDescriptors = (obj, reducer) => {
+  const descriptors = Object.getOwnPropertyDescriptors(obj);
+  const reducedDescriptors = {};
+
+  forEach(descriptors, (descriptor, name) => {
+    let ret;
+    if ((ret = reducer(descriptor, name, obj)) !== false) {
+      reducedDescriptors[name] = ret || descriptor;
+    }
+  });
+
+  Object.defineProperties(obj, reducedDescriptors);
+}
+
+/**
+ * Makes all methods read-only
+ * @param {Object} obj
+ */
+
+const freezeMethods = (obj) => {
+  reduceDescriptors(obj, (descriptor, name) => {
+    // skip restricted props in strict mode
+    if (isFunction(obj) && ['arguments', 'caller', 'callee'].indexOf(name) !== -1) {
+      return false;
+    }
+
+    const value = obj[name];
+
+    if (!isFunction(value)) return;
+
+    descriptor.enumerable = false;
+
+    if ('writable' in descriptor) {
+      descriptor.writable = false;
+      return;
+    }
+
+    if (!descriptor.set) {
+      descriptor.set = () => {
+        throw Error('Can not rewrite read-only method \'' + name + '\'');
+      };
+    }
+  });
+}
+
+const toObjectSet = (arrayOrString, delimiter) => {
+  const obj = {};
+
+  const define = (arr) => {
+    arr.forEach(value => {
+      obj[value] = true;
+    });
+  }
+
+  isArray(arrayOrString) ? define(arrayOrString) : define(String(arrayOrString).split(delimiter));
+
+  return obj;
+}
+
+const noop = () => {}
+
+const toFiniteNumber = (value, defaultValue) => {
+  return value != null && Number.isFinite(value = +value) ? value : defaultValue;
+}
+
+const ALPHA = 'abcdefghijklmnopqrstuvwxyz'
+
+const DIGIT = '0123456789';
+
+const ALPHABET = {
+  DIGIT,
+  ALPHA,
+  ALPHA_DIGIT: ALPHA + ALPHA.toUpperCase() + DIGIT
+}
+
+const generateString = (size = 16, alphabet = ALPHABET.ALPHA_DIGIT) => {
+  let str = '';
+  const {length} = alphabet;
+  while (size--) {
+    str += alphabet[Math.random() * length|0]
+  }
+
+  return str;
+}
+
+/**
+ * If the thing is a FormData object, return true, otherwise return false.
+ *
+ * @param {unknown} thing - The thing to check.
+ *
+ * @returns {boolean}
+ */
+function isSpecCompliantForm(thing) {
+  return !!(thing && isFunction(thing.append) && thing[Symbol.toStringTag] === 'FormData' && thing[Symbol.iterator]);
+}
+
+const toJSONObject = (obj) => {
+  const stack = new Array(10);
+
+  const visit = (source, i) => {
+
+    if (isObject(source)) {
+      if (stack.indexOf(source) >= 0) {
+        return;
+      }
+
+      if(!('toJSON' in source)) {
+        stack[i] = source;
+        const target = isArray(source) ? [] : {};
+
+        forEach(source, (value, key) => {
+          const reducedValue = visit(value, i + 1);
+          !isUndefined(reducedValue) && (target[key] = reducedValue);
+        });
+
+        stack[i] = undefined;
+
+        return target;
+      }
+    }
+
+    return source;
+  }
+
+  return visit(obj, 0);
+}
+
+const isAsyncFn = kindOfTest('AsyncFunction');
+
+const isThenable = (thing) =>
+  thing && (isObject(thing) || isFunction(thing)) && isFunction(thing.then) && isFunction(thing.catch);
+
+// original code
+// https://github.com/DigitalBrainJS/AxiosPromise/blob/16deab13710ec09779922131f3fa5954320f83ab/lib/utils.js#L11-L34
+
+const _setImmediate = ((setImmediateSupported, postMessageSupported) => {
+  if (setImmediateSupported) {
+    return setImmediate;
+  }
+
+  return postMessageSupported ? ((token, callbacks) => {
+    _global.addEventListener("message", ({source, data}) => {
+      if (source === _global && data === token) {
+        callbacks.length && callbacks.shift()();
+      }
+    }, false);
+
+    return (cb) => {
+      callbacks.push(cb);
+      _global.postMessage(token, "*");
+    }
+  })(`axios@${Math.random()}`, []) : (cb) => setTimeout(cb);
+})(
+  typeof setImmediate === 'function',
+  isFunction(_global.postMessage)
+);
+
+const asap = typeof queueMicrotask !== 'undefined' ?
+  queueMicrotask.bind(_global) : ( typeof process !== 'undefined' && process.nextTick || _setImmediate);
+
+// *********************
+
+export default {
+  isArray,
+  isArrayBuffer,
+  isBuffer,
+  isFormData,
+  isArrayBufferView,
+  isString,
+  isNumber,
+  isBoolean,
+  isObject,
+  isPlainObject,
+  isReadableStream,
+  isRequest,
+  isResponse,
+  isHeaders,
+  isUndefined,
+  isDate,
+  isFile,
+  isBlob,
+  isRegExp,
+  isFunction,
+  isStream,
+  isURLSearchParams,
+  isTypedArray,
+  isFileList,
+  forEach,
+  merge,
+  extend,
+  trim,
+  stripBOM,
+  inherits,
+  toFlatObject,
+  kindOf,
+  kindOfTest,
+  endsWith,
+  toArray,
+  forEachEntry,
+  matchAll,
+  isHTMLForm,
+  hasOwnProperty,
+  hasOwnProp: hasOwnProperty, // an alias to avoid ESLint no-prototype-builtins detection
+  reduceDescriptors,
+  freezeMethods,
+  toObjectSet,
+  toCamelCase,
+  noop,
+  toFiniteNumber,
+  findKey,
+  global: _global,
+  isContextDefined,
+  ALPHABET,
+  generateString,
+  isSpecCompliantForm,
+  toJSONObject,
+  isAsyncFn,
+  isThenable,
+  setImmediate: _setImmediate,
+  asap
+};
diff --git a/backend/node_modules/axios/package.json b/backend/node_modules/axios/package.json
new file mode 100644
index 0000000..feb4bb0
--- /dev/null
+++ b/backend/node_modules/axios/package.json
@@ -0,0 +1,219 @@
+{
+  "name": "axios",
+  "version": "1.7.9",
+  "description": "Promise based HTTP client for the browser and node.js",
+  "main": "index.js",
+  "exports": {
+    ".": {
+      "types": {
+        "require": "./index.d.cts",
+        "default": "./index.d.ts"
+      },
+      "browser": {
+        "require": "./dist/browser/axios.cjs",
+        "default": "./index.js"
+      },
+      "default": {
+        "require": "./dist/node/axios.cjs",
+        "default": "./index.js"
+      }
+    },
+    "./lib/adapters/http.js": "./lib/adapters/http.js",
+    "./lib/adapters/xhr.js": "./lib/adapters/xhr.js",
+    "./unsafe/*": "./lib/*",
+    "./unsafe/core/settle.js": "./lib/core/settle.js",
+    "./unsafe/core/buildFullPath.js": "./lib/core/buildFullPath.js",
+    "./unsafe/helpers/isAbsoluteURL.js": "./lib/helpers/isAbsoluteURL.js",
+    "./unsafe/helpers/buildURL.js": "./lib/helpers/buildURL.js",
+    "./unsafe/helpers/combineURLs.js": "./lib/helpers/combineURLs.js",
+    "./unsafe/adapters/http.js": "./lib/adapters/http.js",
+    "./unsafe/adapters/xhr.js": "./lib/adapters/xhr.js",
+    "./unsafe/utils.js": "./lib/utils.js",
+    "./package.json": "./package.json"
+  },
+  "type": "module",
+  "types": "index.d.ts",
+  "scripts": {
+    "test": "npm run test:eslint && npm run test:mocha && npm run test:karma && npm run test:dtslint && npm run test:exports",
+    "test:eslint": "node bin/ssl_hotfix.js eslint lib/**/*.js",
+    "test:dtslint": "dtslint --localTs node_modules/typescript/lib",
+    "test:mocha": "node bin/ssl_hotfix.js mocha test/unit/**/*.js --timeout 30000 --exit",
+    "test:exports": "node bin/ssl_hotfix.js mocha test/module/test.js --timeout 30000 --exit",
+    "test:karma": "node bin/ssl_hotfix.js cross-env LISTEN_ADDR=:: karma start karma.conf.cjs --single-run",
+    "test:karma:firefox": "node bin/ssl_hotfix.js cross-env LISTEN_ADDR=:: Browsers=Firefox karma start karma.conf.cjs --single-run",
+    "test:karma:server": "node bin/ssl_hotfix.js cross-env karma start karma.conf.cjs",
+    "test:build:version": "node ./bin/check-build-version.js",
+    "start": "node ./sandbox/server.js",
+    "preversion": "gulp version",
+    "version": "npm run build && git add dist && git add package.json",
+    "prepublishOnly": "npm run test:build:version",
+    "postpublish": "git push && git push --tags",
+    "build": "gulp clear && cross-env NODE_ENV=production rollup -c -m",
+    "examples": "node ./examples/server.js",
+    "coveralls": "cat coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js",
+    "fix": "eslint --fix lib/**/*.js",
+    "prepare": "husky install && npm run prepare:hooks",
+    "prepare:hooks": "npx husky set .husky/commit-msg \"npx commitlint --edit $1\"",
+    "release:dry": "release-it --dry-run --no-npm",
+    "release:info": "release-it --release-version",
+    "release:beta:no-npm": "release-it --preRelease=beta --no-npm",
+    "release:beta": "release-it --preRelease=beta",
+    "release:no-npm": "release-it --no-npm",
+    "release:changelog:fix": "node ./bin/injectContributorsList.js && git add CHANGELOG.md",
+    "release": "release-it"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/axios/axios.git"
+  },
+  "keywords": [
+    "xhr",
+    "http",
+    "ajax",
+    "promise",
+    "node"
+  ],
+  "author": "Matt Zabriskie",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/axios/axios/issues"
+  },
+  "homepage": "https://axios-http.com",
+  "devDependencies": {
+    "@babel/core": "^7.23.9",
+    "@babel/preset-env": "^7.23.9",
+    "@commitlint/cli": "^17.8.1",
+    "@commitlint/config-conventional": "^17.8.1",
+    "@release-it/conventional-changelog": "^5.1.1",
+    "@rollup/plugin-babel": "^5.3.1",
+    "@rollup/plugin-commonjs": "^15.1.0",
+    "@rollup/plugin-json": "^4.1.0",
+    "@rollup/plugin-multi-entry": "^4.1.0",
+    "@rollup/plugin-node-resolve": "^9.0.0",
+    "abortcontroller-polyfill": "^1.7.5",
+    "auto-changelog": "^2.4.0",
+    "body-parser": "^1.20.2",
+    "chalk": "^5.3.0",
+    "coveralls": "^3.1.1",
+    "cross-env": "^7.0.3",
+    "dev-null": "^0.1.1",
+    "dtslint": "^4.2.1",
+    "es6-promise": "^4.2.8",
+    "eslint": "^8.56.0",
+    "express": "^4.18.2",
+    "formdata-node": "^5.0.1",
+    "formidable": "^2.1.2",
+    "fs-extra": "^10.1.0",
+    "get-stream": "^3.0.0",
+    "gulp": "^4.0.2",
+    "gzip-size": "^7.0.0",
+    "handlebars": "^4.7.8",
+    "husky": "^8.0.3",
+    "istanbul-instrumenter-loader": "^3.0.1",
+    "jasmine-core": "^2.99.1",
+    "karma": "^6.3.17",
+    "karma-chrome-launcher": "^3.2.0",
+    "karma-firefox-launcher": "^2.1.2",
+    "karma-jasmine": "^1.1.2",
+    "karma-jasmine-ajax": "^0.1.13",
+    "karma-rollup-preprocessor": "^7.0.8",
+    "karma-safari-launcher": "^1.0.0",
+    "karma-sauce-launcher": "^4.3.6",
+    "karma-sinon": "^1.0.5",
+    "karma-sourcemap-loader": "^0.3.8",
+    "memoizee": "^0.4.15",
+    "minimist": "^1.2.8",
+    "mocha": "^10.3.0",
+    "multer": "^1.4.4",
+    "pretty-bytes": "^6.1.1",
+    "release-it": "^15.11.0",
+    "rollup": "^2.79.1",
+    "rollup-plugin-auto-external": "^2.0.0",
+    "rollup-plugin-bundle-size": "^1.0.3",
+    "rollup-plugin-terser": "^7.0.2",
+    "sinon": "^4.5.0",
+    "stream-throttle": "^0.1.3",
+    "string-replace-async": "^3.0.2",
+    "terser-webpack-plugin": "^4.2.3",
+    "typescript": "^4.9.5",
+    "@rollup/plugin-alias": "^5.1.0"
+  },
+  "browser": {
+    "./lib/adapters/http.js": "./lib/helpers/null.js",
+    "./lib/platform/node/index.js": "./lib/platform/browser/index.js",
+    "./lib/platform/node/classes/FormData.js": "./lib/helpers/null.js"
+  },
+  "jsdelivr": "dist/axios.min.js",
+  "unpkg": "dist/axios.min.js",
+  "typings": "./index.d.ts",
+  "dependencies": {
+    "follow-redirects": "^1.15.6",
+    "form-data": "^4.0.0",
+    "proxy-from-env": "^1.1.0"
+  },
+  "bundlesize": [
+    {
+      "path": "./dist/axios.min.js",
+      "threshold": "5kB"
+    }
+  ],
+  "contributors": [
+    "Matt Zabriskie (https://github.com/mzabriskie)",
+    "Nick Uraltsev (https://github.com/nickuraltsev)",
+    "Dmitriy Mozgovoy (https://github.com/DigitalBrainJS)",
+    "Jay (https://github.com/jasonsaayman)",
+    "Emily Morehouse (https://github.com/emilyemorehouse)",
+    "Justin Beckwith (https://github.com/JustinBeckwith)",
+    "Rubén Norte (https://github.com/rubennorte)",
+    "Martti Laine (https://github.com/codeclown)",
+    "Xianming Zhong (https://github.com/chinesedfan)",
+    "Remco Haszing (https://github.com/remcohaszing)",
+    "Rikki Gibson (https://github.com/RikkiGibson)",
+    "Yasu Flores (https://github.com/yasuf)",
+    "Ben Carp (https://github.com/carpben)"
+  ],
+  "sideEffects": false,
+  "release-it": {
+    "git": {
+      "commitMessage": "chore(release): v${version}",
+      "push": true,
+      "commit": true,
+      "tag": true,
+      "requireCommits": false,
+      "requireCleanWorkingDir": false
+    },
+    "github": {
+      "release": true,
+      "draft": true
+    },
+    "npm": {
+      "publish": false,
+      "ignoreVersion": false
+    },
+    "plugins": {
+      "@release-it/conventional-changelog": {
+        "preset": "angular",
+        "infile": "CHANGELOG.md",
+        "header": "# Changelog"
+      }
+    },
+    "hooks": {
+      "before:init": "npm test",
+      "after:bump": "gulp version --bump ${version} && npm run build && npm run test:build:version && git add ./dist && git add ./package-lock.json",
+      "before:release": "npm run release:changelog:fix",
+      "after:release": "echo Successfully released ${name} v${version} to ${repo.repository}."
+    }
+  },
+  "commitlint": {
+    "rules": {
+      "header-max-length": [
+        2,
+        "always",
+        130
+      ]
+    },
+    "extends": [
+      "@commitlint/config-conventional"
+    ]
+  }
+}
\ No newline at end of file
diff --git a/backend/node_modules/body-parser/HISTORY.md b/backend/node_modules/body-parser/HISTORY.md
new file mode 100644
index 0000000..81d23e0
--- /dev/null
+++ b/backend/node_modules/body-parser/HISTORY.md
@@ -0,0 +1,672 @@
+1.20.3 / 2024-09-10
+===================
+
+  * deps: qs@6.13.0
+  * add `depth` option to customize the depth level in the parser
+  * IMPORTANT: The default `depth` level for parsing URL-encoded data is now `32` (previously was `Infinity`)
+
+1.20.2 / 2023-02-21
+===================
+
+  * Fix strict json error message on Node.js 19+
+  * deps: content-type@~1.0.5
+    - perf: skip value escaping when unnecessary
+  * deps: raw-body@2.5.2
+
+1.20.1 / 2022-10-06
+===================
+
+  * deps: qs@6.11.0
+  * perf: remove unnecessary object clone
+
+1.20.0 / 2022-04-02
+===================
+
+  * Fix error message for json parse whitespace in `strict`
+  * Fix internal error when inflated body exceeds limit
+  * Prevent loss of async hooks context
+  * Prevent hanging when request already read
+  * deps: depd@2.0.0
+    - Replace internal `eval` usage with `Function` constructor
+    - Use instance methods on `process` to check for listeners
+  * deps: http-errors@2.0.0
+    - deps: depd@2.0.0
+    - deps: statuses@2.0.1
+  * deps: on-finished@2.4.1
+  * deps: qs@6.10.3
+  * deps: raw-body@2.5.1
+    - deps: http-errors@2.0.0
+
+1.19.2 / 2022-02-15
+===================
+
+  * deps: bytes@3.1.2
+  * deps: qs@6.9.7
+    * Fix handling of `__proto__` keys
+  * deps: raw-body@2.4.3
+    - deps: bytes@3.1.2
+
+1.19.1 / 2021-12-10
+===================
+
+  * deps: bytes@3.1.1
+  * deps: http-errors@1.8.1
+    - deps: inherits@2.0.4
+    - deps: toidentifier@1.0.1
+    - deps: setprototypeof@1.2.0
+  * deps: qs@6.9.6
+  * deps: raw-body@2.4.2
+    - deps: bytes@3.1.1
+    - deps: http-errors@1.8.1
+  * deps: safe-buffer@5.2.1
+  * deps: type-is@~1.6.18
+
+1.19.0 / 2019-04-25
+===================
+
+  * deps: bytes@3.1.0
+    - Add petabyte (`pb`) support
+  * deps: http-errors@1.7.2
+    - Set constructor name when possible
+    - deps: setprototypeof@1.1.1
+    - deps: statuses@'>= 1.5.0 < 2'
+  * deps: iconv-lite@0.4.24
+    - Added encoding MIK
+  * deps: qs@6.7.0
+    - Fix parsing array brackets after index
+  * deps: raw-body@2.4.0
+    - deps: bytes@3.1.0
+    - deps: http-errors@1.7.2
+    - deps: iconv-lite@0.4.24
+  * deps: type-is@~1.6.17
+    - deps: mime-types@~2.1.24
+    - perf: prevent internal `throw` on invalid type
+
+1.18.3 / 2018-05-14
+===================
+
+  * Fix stack trace for strict json parse error
+  * deps: depd@~1.1.2
+    - perf: remove argument reassignment
+  * deps: http-errors@~1.6.3
+    - deps: depd@~1.1.2
+    - deps: setprototypeof@1.1.0
+    - deps: statuses@'>= 1.3.1 < 2'
+  * deps: iconv-lite@0.4.23
+    - Fix loading encoding with year appended
+    - Fix deprecation warnings on Node.js 10+
+  * deps: qs@6.5.2
+  * deps: raw-body@2.3.3
+    - deps: http-errors@1.6.3
+    - deps: iconv-lite@0.4.23
+  * deps: type-is@~1.6.16
+    - deps: mime-types@~2.1.18
+
+1.18.2 / 2017-09-22
+===================
+
+  * deps: debug@2.6.9
+  * perf: remove argument reassignment
+
+1.18.1 / 2017-09-12
+===================
+
+  * deps: content-type@~1.0.4
+    - perf: remove argument reassignment
+    - perf: skip parameter parsing when no parameters
+  * deps: iconv-lite@0.4.19
+    - Fix ISO-8859-1 regression
+    - Update Windows-1255
+  * deps: qs@6.5.1
+    - Fix parsing & compacting very deep objects
+  * deps: raw-body@2.3.2
+    - deps: iconv-lite@0.4.19
+
+1.18.0 / 2017-09-08
+===================
+
+  * Fix JSON strict violation error to match native parse error
+  * Include the `body` property on verify errors
+  * Include the `type` property on all generated errors
+  * Use `http-errors` to set status code on errors
+  * deps: bytes@3.0.0
+  * deps: debug@2.6.8
+  * deps: depd@~1.1.1
+    - Remove unnecessary `Buffer` loading
+  * deps: http-errors@~1.6.2
+    - deps: depd@1.1.1
+  * deps: iconv-lite@0.4.18
+    - Add support for React Native
+    - Add a warning if not loaded as utf-8
+    - Fix CESU-8 decoding in Node.js 8
+    - Improve speed of ISO-8859-1 encoding
+  * deps: qs@6.5.0
+  * deps: raw-body@2.3.1
+    - Use `http-errors` for standard emitted errors
+    - deps: bytes@3.0.0
+    - deps: iconv-lite@0.4.18
+    - perf: skip buffer decoding on overage chunk
+  * perf: prevent internal `throw` when missing charset
+
+1.17.2 / 2017-05-17
+===================
+
+  * deps: debug@2.6.7
+    - Fix `DEBUG_MAX_ARRAY_LENGTH`
+    - deps: ms@2.0.0
+  * deps: type-is@~1.6.15
+    - deps: mime-types@~2.1.15
+
+1.17.1 / 2017-03-06
+===================
+
+  * deps: qs@6.4.0
+    - Fix regression parsing keys starting with `[`
+
+1.17.0 / 2017-03-01
+===================
+
+  * deps: http-errors@~1.6.1
+    - Make `message` property enumerable for `HttpError`s
+    - deps: setprototypeof@1.0.3
+  * deps: qs@6.3.1
+    - Fix compacting nested arrays
+
+1.16.1 / 2017-02-10
+===================
+
+  * deps: debug@2.6.1
+    - Fix deprecation messages in WebStorm and other editors
+    - Undeprecate `DEBUG_FD` set to `1` or `2`
+
+1.16.0 / 2017-01-17
+===================
+
+  * deps: debug@2.6.0
+    - Allow colors in workers
+    - Deprecated `DEBUG_FD` environment variable
+    - Fix error when running under React Native
+    - Use same color for same namespace
+    - deps: ms@0.7.2
+  * deps: http-errors@~1.5.1
+    - deps: inherits@2.0.3
+    - deps: setprototypeof@1.0.2
+    - deps: statuses@'>= 1.3.1 < 2'
+  * deps: iconv-lite@0.4.15
+    - Added encoding MS-31J
+    - Added encoding MS-932
+    - Added encoding MS-936
+    - Added encoding MS-949
+    - Added encoding MS-950
+    - Fix GBK/GB18030 handling of Euro character
+  * deps: qs@6.2.1
+    - Fix array parsing from skipping empty values
+  * deps: raw-body@~2.2.0
+    - deps: iconv-lite@0.4.15
+  * deps: type-is@~1.6.14
+    - deps: mime-types@~2.1.13
+
+1.15.2 / 2016-06-19
+===================
+
+  * deps: bytes@2.4.0
+  * deps: content-type@~1.0.2
+    - perf: enable strict mode
+  * deps: http-errors@~1.5.0
+    - Use `setprototypeof` module to replace `__proto__` setting
+    - deps: statuses@'>= 1.3.0 < 2'
+    - perf: enable strict mode
+  * deps: qs@6.2.0
+  * deps: raw-body@~2.1.7
+    - deps: bytes@2.4.0
+    - perf: remove double-cleanup on happy path
+  * deps: type-is@~1.6.13
+    - deps: mime-types@~2.1.11
+
+1.15.1 / 2016-05-05
+===================
+
+  * deps: bytes@2.3.0
+    - Drop partial bytes on all parsed units
+    - Fix parsing byte string that looks like hex
+  * deps: raw-body@~2.1.6
+    - deps: bytes@2.3.0
+  * deps: type-is@~1.6.12
+    - deps: mime-types@~2.1.10
+
+1.15.0 / 2016-02-10
+===================
+
+  * deps: http-errors@~1.4.0
+    - Add `HttpError` export, for `err instanceof createError.HttpError`
+    - deps: inherits@2.0.1
+    - deps: statuses@'>= 1.2.1 < 2'
+  * deps: qs@6.1.0
+  * deps: type-is@~1.6.11
+    - deps: mime-types@~2.1.9
+
+1.14.2 / 2015-12-16
+===================
+
+  * deps: bytes@2.2.0
+  * deps: iconv-lite@0.4.13
+  * deps: qs@5.2.0
+  * deps: raw-body@~2.1.5
+    - deps: bytes@2.2.0
+    - deps: iconv-lite@0.4.13
+  * deps: type-is@~1.6.10
+    - deps: mime-types@~2.1.8
+
+1.14.1 / 2015-09-27
+===================
+
+  * Fix issue where invalid charset results in 400 when `verify` used
+  * deps: iconv-lite@0.4.12
+    - Fix CESU-8 decoding in Node.js 4.x
+  * deps: raw-body@~2.1.4
+    - Fix masking critical errors from `iconv-lite`
+    - deps: iconv-lite@0.4.12
+  * deps: type-is@~1.6.9
+    - deps: mime-types@~2.1.7
+
+1.14.0 / 2015-09-16
+===================
+
+  * Fix JSON strict parse error to match syntax errors
+  * Provide static `require` analysis in `urlencoded` parser
+  * deps: depd@~1.1.0
+    - Support web browser loading
+  * deps: qs@5.1.0
+  * deps: raw-body@~2.1.3
+    - Fix sync callback when attaching data listener causes sync read
+  * deps: type-is@~1.6.8
+    - Fix type error when given invalid type to match against
+    - deps: mime-types@~2.1.6
+
+1.13.3 / 2015-07-31
+===================
+
+  * deps: type-is@~1.6.6
+    - deps: mime-types@~2.1.4
+
+1.13.2 / 2015-07-05
+===================
+
+  * deps: iconv-lite@0.4.11
+  * deps: qs@4.0.0
+    - Fix dropping parameters like `hasOwnProperty`
+    - Fix user-visible incompatibilities from 3.1.0
+    - Fix various parsing edge cases
+  * deps: raw-body@~2.1.2
+    - Fix error stack traces to skip `makeError`
+    - deps: iconv-lite@0.4.11
+  * deps: type-is@~1.6.4
+    - deps: mime-types@~2.1.2
+    - perf: enable strict mode
+    - perf: remove argument reassignment
+
+1.13.1 / 2015-06-16
+===================
+
+  * deps: qs@2.4.2
+    - Downgraded from 3.1.0 because of user-visible incompatibilities
+
+1.13.0 / 2015-06-14
+===================
+
+  * Add `statusCode` property on `Error`s, in addition to `status`
+  * Change `type` default to `application/json` for JSON parser
+  * Change `type` default to `application/x-www-form-urlencoded` for urlencoded parser
+  * Provide static `require` analysis
+  * Use the `http-errors` module to generate errors
+  * deps: bytes@2.1.0
+    - Slight optimizations
+  * deps: iconv-lite@0.4.10
+    - The encoding UTF-16 without BOM now defaults to UTF-16LE when detection fails
+    - Leading BOM is now removed when decoding
+  * deps: on-finished@~2.3.0
+    - Add defined behavior for HTTP `CONNECT` requests
+    - Add defined behavior for HTTP `Upgrade` requests
+    - deps: ee-first@1.1.1
+  * deps: qs@3.1.0
+    - Fix dropping parameters like `hasOwnProperty`
+    - Fix various parsing edge cases
+    - Parsed object now has `null` prototype
+  * deps: raw-body@~2.1.1
+    - Use `unpipe` module for unpiping requests
+    - deps: iconv-lite@0.4.10
+  * deps: type-is@~1.6.3
+    - deps: mime-types@~2.1.1
+    - perf: reduce try block size
+    - perf: remove bitwise operations
+  * perf: enable strict mode
+  * perf: remove argument reassignment
+  * perf: remove delete call
+
+1.12.4 / 2015-05-10
+===================
+
+  * deps: debug@~2.2.0
+  * deps: qs@2.4.2
+    - Fix allowing parameters like `constructor`
+  * deps: on-finished@~2.2.1
+  * deps: raw-body@~2.0.1
+    - Fix a false-positive when unpiping in Node.js 0.8
+    - deps: bytes@2.0.1
+  * deps: type-is@~1.6.2
+    - deps: mime-types@~2.0.11
+
+1.12.3 / 2015-04-15
+===================
+
+  * Slight efficiency improvement when not debugging
+  * deps: depd@~1.0.1
+  * deps: iconv-lite@0.4.8
+    - Add encoding alias UNICODE-1-1-UTF-7
+  * deps: raw-body@1.3.4
+    - Fix hanging callback if request aborts during read
+    - deps: iconv-lite@0.4.8
+
+1.12.2 / 2015-03-16
+===================
+
+  * deps: qs@2.4.1
+    - Fix error when parameter `hasOwnProperty` is present
+
+1.12.1 / 2015-03-15
+===================
+
+  * deps: debug@~2.1.3
+    - Fix high intensity foreground color for bold
+    - deps: ms@0.7.0
+  * deps: type-is@~1.6.1
+    - deps: mime-types@~2.0.10
+
+1.12.0 / 2015-02-13
+===================
+
+  * add `debug` messages
+  * accept a function for the `type` option
+  * use `content-type` to parse `Content-Type` headers
+  * deps: iconv-lite@0.4.7
+    - Gracefully support enumerables on `Object.prototype`
+  * deps: raw-body@1.3.3
+    - deps: iconv-lite@0.4.7
+  * deps: type-is@~1.6.0
+    - fix argument reassignment
+    - fix false-positives in `hasBody` `Transfer-Encoding` check
+    - support wildcard for both type and subtype (`*/*`)
+    - deps: mime-types@~2.0.9
+
+1.11.0 / 2015-01-30
+===================
+
+  * make internal `extended: true` depth limit infinity
+  * deps: type-is@~1.5.6
+    - deps: mime-types@~2.0.8
+
+1.10.2 / 2015-01-20
+===================
+
+  * deps: iconv-lite@0.4.6
+    - Fix rare aliases of single-byte encodings
+  * deps: raw-body@1.3.2
+    - deps: iconv-lite@0.4.6
+
+1.10.1 / 2015-01-01
+===================
+
+  * deps: on-finished@~2.2.0
+  * deps: type-is@~1.5.5
+    - deps: mime-types@~2.0.7
+
+1.10.0 / 2014-12-02
+===================
+
+  * make internal `extended: true` array limit dynamic
+
+1.9.3 / 2014-11-21
+==================
+
+  * deps: iconv-lite@0.4.5
+    - Fix Windows-31J and X-SJIS encoding support
+  * deps: qs@2.3.3
+    - Fix `arrayLimit` behavior
+  * deps: raw-body@1.3.1
+    - deps: iconv-lite@0.4.5
+  * deps: type-is@~1.5.3
+    - deps: mime-types@~2.0.3
+
+1.9.2 / 2014-10-27
+==================
+
+  * deps: qs@2.3.2
+    - Fix parsing of mixed objects and values
+
+1.9.1 / 2014-10-22
+==================
+
+  * deps: on-finished@~2.1.1
+    - Fix handling of pipelined requests
+  * deps: qs@2.3.0
+    - Fix parsing of mixed implicit and explicit arrays
+  * deps: type-is@~1.5.2
+    - deps: mime-types@~2.0.2
+
+1.9.0 / 2014-09-24
+==================
+
+  * include the charset in "unsupported charset" error message
+  * include the encoding in "unsupported content encoding" error message
+  * deps: depd@~1.0.0
+
+1.8.4 / 2014-09-23
+==================
+
+  * fix content encoding to be case-insensitive
+
+1.8.3 / 2014-09-19
+==================
+
+  * deps: qs@2.2.4
+    - Fix issue with object keys starting with numbers truncated
+
+1.8.2 / 2014-09-15
+==================
+
+  * deps: depd@0.4.5
+
+1.8.1 / 2014-09-07
+==================
+
+  * deps: media-typer@0.3.0
+  * deps: type-is@~1.5.1
+
+1.8.0 / 2014-09-05
+==================
+
+  * make empty-body-handling consistent between chunked requests
+    - empty `json` produces `{}`
+    - empty `raw` produces `new Buffer(0)`
+    - empty `text` produces `''`
+    - empty `urlencoded` produces `{}`
+  * deps: qs@2.2.3
+    - Fix issue where first empty value in array is discarded
+  * deps: type-is@~1.5.0
+    - fix `hasbody` to be true for `content-length: 0`
+
+1.7.0 / 2014-09-01
+==================
+
+  * add `parameterLimit` option to `urlencoded` parser
+  * change `urlencoded` extended array limit to 100
+  * respond with 413 when over `parameterLimit` in `urlencoded`
+
+1.6.7 / 2014-08-29
+==================
+
+  * deps: qs@2.2.2
+    - Remove unnecessary cloning
+
+1.6.6 / 2014-08-27
+==================
+
+  * deps: qs@2.2.0
+    - Array parsing fix
+    - Performance improvements
+
+1.6.5 / 2014-08-16
+==================
+
+  * deps: on-finished@2.1.0
+
+1.6.4 / 2014-08-14
+==================
+
+  * deps: qs@1.2.2
+
+1.6.3 / 2014-08-10
+==================
+
+  * deps: qs@1.2.1
+
+1.6.2 / 2014-08-07
+==================
+
+  * deps: qs@1.2.0
+    - Fix parsing array of objects
+
+1.6.1 / 2014-08-06
+==================
+
+  * deps: qs@1.1.0
+    - Accept urlencoded square brackets
+    - Accept empty values in implicit array notation
+
+1.6.0 / 2014-08-05
+==================
+
+  * deps: qs@1.0.2
+    - Complete rewrite
+    - Limits array length to 20
+    - Limits object depth to 5
+    - Limits parameters to 1,000
+
+1.5.2 / 2014-07-27
+==================
+
+  * deps: depd@0.4.4
+    - Work-around v8 generating empty stack traces
+
+1.5.1 / 2014-07-26
+==================
+
+  * deps: depd@0.4.3
+    - Fix exception when global `Error.stackTraceLimit` is too low
+
+1.5.0 / 2014-07-20
+==================
+
+  * deps: depd@0.4.2
+    - Add `TRACE_DEPRECATION` environment variable
+    - Remove non-standard grey color from color output
+    - Support `--no-deprecation` argument
+    - Support `--trace-deprecation` argument
+  * deps: iconv-lite@0.4.4
+    - Added encoding UTF-7
+  * deps: raw-body@1.3.0
+    - deps: iconv-lite@0.4.4
+    - Added encoding UTF-7
+    - Fix `Cannot switch to old mode now` error on Node.js 0.10+
+  * deps: type-is@~1.3.2
+
+1.4.3 / 2014-06-19
+==================
+
+  * deps: type-is@1.3.1
+    - fix global variable leak
+
+1.4.2 / 2014-06-19
+==================
+
+  * deps: type-is@1.3.0
+    - improve type parsing
+
+1.4.1 / 2014-06-19
+==================
+
+  * fix urlencoded extended deprecation message
+
+1.4.0 / 2014-06-19
+==================
+
+  * add `text` parser
+  * add `raw` parser
+  * check accepted charset in content-type (accepts utf-8)
+  * check accepted encoding in content-encoding (accepts identity)
+  * deprecate `bodyParser()` middleware; use `.json()` and `.urlencoded()` as needed
+  * deprecate `urlencoded()` without provided `extended` option
+  * lazy-load urlencoded parsers
+  * parsers split into files for reduced mem usage
+  * support gzip and deflate bodies
+    - set `inflate: false` to turn off
+  * deps: raw-body@1.2.2
+    - Support all encodings from `iconv-lite`
+
+1.3.1 / 2014-06-11
+==================
+
+  * deps: type-is@1.2.1
+    - Switch dependency from mime to mime-types@1.0.0
+
+1.3.0 / 2014-05-31
+==================
+
+  * add `extended` option to urlencoded parser
+
+1.2.2 / 2014-05-27
+==================
+
+  * deps: raw-body@1.1.6
+    - assert stream encoding on node.js 0.8
+    - assert stream encoding on node.js < 0.10.6
+    - deps: bytes@1
+
+1.2.1 / 2014-05-26
+==================
+
+  * invoke `next(err)` after request fully read
+    - prevents hung responses and socket hang ups
+
+1.2.0 / 2014-05-11
+==================
+
+  * add `verify` option
+  * deps: type-is@1.2.0
+    - support suffix matching
+
+1.1.2 / 2014-05-11
+==================
+
+  * improve json parser speed
+
+1.1.1 / 2014-05-11
+==================
+
+  * fix repeated limit parsing with every request
+
+1.1.0 / 2014-05-10
+==================
+
+  * add `type` option
+  * deps: pin for safety and consistency
+
+1.0.2 / 2014-04-14
+==================
+
+  * use `type-is` module
+
+1.0.1 / 2014-03-20
+==================
+
+  * lower default limits to 100kb
diff --git a/backend/node_modules/body-parser/LICENSE b/backend/node_modules/body-parser/LICENSE
new file mode 100644
index 0000000..386b7b6
--- /dev/null
+++ b/backend/node_modules/body-parser/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2014 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2014-2015 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/body-parser/README.md b/backend/node_modules/body-parser/README.md
new file mode 100644
index 0000000..f6661b7
--- /dev/null
+++ b/backend/node_modules/body-parser/README.md
@@ -0,0 +1,476 @@
+# body-parser
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Build Status][ci-image]][ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+[![OpenSSF Scorecard Badge][ossf-scorecard-badge]][ossf-scorecard-visualizer]
+
+Node.js body parsing middleware.
+
+Parse incoming request bodies in a middleware before your handlers, available
+under the `req.body` property.
+
+**Note** As `req.body`'s shape is based on user-controlled input, all
+properties and values in this object are untrusted and should be validated
+before trusting. For example, `req.body.foo.toString()` may fail in multiple
+ways, for example the `foo` property may not be there or may not be a string,
+and `toString` may not be a function and instead a string or other user input.
+
+[Learn about the anatomy of an HTTP transaction in Node.js](https://nodejs.org/en/docs/guides/anatomy-of-an-http-transaction/).
+
+_This does not handle multipart bodies_, due to their complex and typically
+large nature. For multipart bodies, you may be interested in the following
+modules:
+
+  * [busboy](https://www.npmjs.org/package/busboy#readme) and
+    [connect-busboy](https://www.npmjs.org/package/connect-busboy#readme)
+  * [multiparty](https://www.npmjs.org/package/multiparty#readme) and
+    [connect-multiparty](https://www.npmjs.org/package/connect-multiparty#readme)
+  * [formidable](https://www.npmjs.org/package/formidable#readme)
+  * [multer](https://www.npmjs.org/package/multer#readme)
+
+This module provides the following parsers:
+
+  * [JSON body parser](#bodyparserjsonoptions)
+  * [Raw body parser](#bodyparserrawoptions)
+  * [Text body parser](#bodyparsertextoptions)
+  * [URL-encoded form body parser](#bodyparserurlencodedoptions)
+
+Other body parsers you might be interested in:
+
+- [body](https://www.npmjs.org/package/body#readme)
+- [co-body](https://www.npmjs.org/package/co-body#readme)
+
+## Installation
+
+```sh
+$ npm install body-parser
+```
+
+## API
+
+```js
+var bodyParser = require('body-parser')
+```
+
+The `bodyParser` object exposes various factories to create middlewares. All
+middlewares will populate the `req.body` property with the parsed body when
+the `Content-Type` request header matches the `type` option, or an empty
+object (`{}`) if there was no body to parse, the `Content-Type` was not matched,
+or an error occurred.
+
+The various errors returned by this module are described in the
+[errors section](#errors).
+
+### bodyParser.json([options])
+
+Returns middleware that only parses `json` and only looks at requests where
+the `Content-Type` header matches the `type` option. This parser accepts any
+Unicode encoding of the body and supports automatic inflation of `gzip` and
+`deflate` encodings.
+
+A new `body` object containing the parsed data is populated on the `request`
+object after the middleware (i.e. `req.body`).
+
+#### Options
+
+The `json` function takes an optional `options` object that may contain any of
+the following keys:
+
+##### inflate
+
+When set to `true`, then deflated (compressed) bodies will be inflated; when
+`false`, deflated bodies are rejected. Defaults to `true`.
+
+##### limit
+
+Controls the maximum request body size. If this is a number, then the value
+specifies the number of bytes; if it is a string, the value is passed to the
+[bytes](https://www.npmjs.com/package/bytes) library for parsing. Defaults
+to `'100kb'`.
+
+##### reviver
+
+The `reviver` option is passed directly to `JSON.parse` as the second
+argument. You can find more information on this argument
+[in the MDN documentation about JSON.parse](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse#Example.3A_Using_the_reviver_parameter).
+
+##### strict
+
+When set to `true`, will only accept arrays and objects; when `false` will
+accept anything `JSON.parse` accepts. Defaults to `true`.
+
+##### type
+
+The `type` option is used to determine what media type the middleware will
+parse. This option can be a string, array of strings, or a function. If not a
+function, `type` option is passed directly to the
+[type-is](https://www.npmjs.org/package/type-is#readme) library and this can
+be an extension name (like `json`), a mime type (like `application/json`), or
+a mime type with a wildcard (like `*/*` or `*/json`). If a function, the `type`
+option is called as `fn(req)` and the request is parsed if it returns a truthy
+value. Defaults to `application/json`.
+
+##### verify
+
+The `verify` option, if supplied, is called as `verify(req, res, buf, encoding)`,
+where `buf` is a `Buffer` of the raw request body and `encoding` is the
+encoding of the request. The parsing can be aborted by throwing an error.
+
+### bodyParser.raw([options])
+
+Returns middleware that parses all bodies as a `Buffer` and only looks at
+requests where the `Content-Type` header matches the `type` option. This
+parser supports automatic inflation of `gzip` and `deflate` encodings.
+
+A new `body` object containing the parsed data is populated on the `request`
+object after the middleware (i.e. `req.body`). This will be a `Buffer` object
+of the body.
+
+#### Options
+
+The `raw` function takes an optional `options` object that may contain any of
+the following keys:
+
+##### inflate
+
+When set to `true`, then deflated (compressed) bodies will be inflated; when
+`false`, deflated bodies are rejected. Defaults to `true`.
+
+##### limit
+
+Controls the maximum request body size. If this is a number, then the value
+specifies the number of bytes; if it is a string, the value is passed to the
+[bytes](https://www.npmjs.com/package/bytes) library for parsing. Defaults
+to `'100kb'`.
+
+##### type
+
+The `type` option is used to determine what media type the middleware will
+parse. This option can be a string, array of strings, or a function.
+If not a function, `type` option is passed directly to the
+[type-is](https://www.npmjs.org/package/type-is#readme) library and this
+can be an extension name (like `bin`), a mime type (like
+`application/octet-stream`), or a mime type with a wildcard (like `*/*` or
+`application/*`). If a function, the `type` option is called as `fn(req)`
+and the request is parsed if it returns a truthy value. Defaults to
+`application/octet-stream`.
+
+##### verify
+
+The `verify` option, if supplied, is called as `verify(req, res, buf, encoding)`,
+where `buf` is a `Buffer` of the raw request body and `encoding` is the
+encoding of the request. The parsing can be aborted by throwing an error.
+
+### bodyParser.text([options])
+
+Returns middleware that parses all bodies as a string and only looks at
+requests where the `Content-Type` header matches the `type` option. This
+parser supports automatic inflation of `gzip` and `deflate` encodings.
+
+A new `body` string containing the parsed data is populated on the `request`
+object after the middleware (i.e. `req.body`). This will be a string of the
+body.
+
+#### Options
+
+The `text` function takes an optional `options` object that may contain any of
+the following keys:
+
+##### defaultCharset
+
+Specify the default character set for the text content if the charset is not
+specified in the `Content-Type` header of the request. Defaults to `utf-8`.
+
+##### inflate
+
+When set to `true`, then deflated (compressed) bodies will be inflated; when
+`false`, deflated bodies are rejected. Defaults to `true`.
+
+##### limit
+
+Controls the maximum request body size. If this is a number, then the value
+specifies the number of bytes; if it is a string, the value is passed to the
+[bytes](https://www.npmjs.com/package/bytes) library for parsing. Defaults
+to `'100kb'`.
+
+##### type
+
+The `type` option is used to determine what media type the middleware will
+parse. This option can be a string, array of strings, or a function. If not
+a function, `type` option is passed directly to the
+[type-is](https://www.npmjs.org/package/type-is#readme) library and this can
+be an extension name (like `txt`), a mime type (like `text/plain`), or a mime
+type with a wildcard (like `*/*` or `text/*`). If a function, the `type`
+option is called as `fn(req)` and the request is parsed if it returns a
+truthy value. Defaults to `text/plain`.
+
+##### verify
+
+The `verify` option, if supplied, is called as `verify(req, res, buf, encoding)`,
+where `buf` is a `Buffer` of the raw request body and `encoding` is the
+encoding of the request. The parsing can be aborted by throwing an error.
+
+### bodyParser.urlencoded([options])
+
+Returns middleware that only parses `urlencoded` bodies and only looks at
+requests where the `Content-Type` header matches the `type` option. This
+parser accepts only UTF-8 encoding of the body and supports automatic
+inflation of `gzip` and `deflate` encodings.
+
+A new `body` object containing the parsed data is populated on the `request`
+object after the middleware (i.e. `req.body`). This object will contain
+key-value pairs, where the value can be a string or array (when `extended` is
+`false`), or any type (when `extended` is `true`).
+
+#### Options
+
+The `urlencoded` function takes an optional `options` object that may contain
+any of the following keys:
+
+##### extended
+
+The `extended` option allows to choose between parsing the URL-encoded data
+with the `querystring` library (when `false`) or the `qs` library (when
+`true`). The "extended" syntax allows for rich objects and arrays to be
+encoded into the URL-encoded format, allowing for a JSON-like experience
+with URL-encoded. For more information, please
+[see the qs library](https://www.npmjs.org/package/qs#readme).
+
+Defaults to `true`, but using the default has been deprecated. Please
+research into the difference between `qs` and `querystring` and choose the
+appropriate setting.
+
+##### inflate
+
+When set to `true`, then deflated (compressed) bodies will be inflated; when
+`false`, deflated bodies are rejected. Defaults to `true`.
+
+##### limit
+
+Controls the maximum request body size. If this is a number, then the value
+specifies the number of bytes; if it is a string, the value is passed to the
+[bytes](https://www.npmjs.com/package/bytes) library for parsing. Defaults
+to `'100kb'`.
+
+##### parameterLimit
+
+The `parameterLimit` option controls the maximum number of parameters that
+are allowed in the URL-encoded data. If a request contains more parameters
+than this value, a 413 will be returned to the client. Defaults to `1000`.
+
+##### type
+
+The `type` option is used to determine what media type the middleware will
+parse. This option can be a string, array of strings, or a function. If not
+a function, `type` option is passed directly to the
+[type-is](https://www.npmjs.org/package/type-is#readme) library and this can
+be an extension name (like `urlencoded`), a mime type (like
+`application/x-www-form-urlencoded`), or a mime type with a wildcard (like
+`*/x-www-form-urlencoded`). If a function, the `type` option is called as
+`fn(req)` and the request is parsed if it returns a truthy value. Defaults
+to `application/x-www-form-urlencoded`.
+
+##### verify
+
+The `verify` option, if supplied, is called as `verify(req, res, buf, encoding)`,
+where `buf` is a `Buffer` of the raw request body and `encoding` is the
+encoding of the request. The parsing can be aborted by throwing an error.
+
+#### depth
+
+The `depth` option is used to configure the maximum depth of the `qs` library when `extended` is `true`. This allows you to limit the amount of keys that are parsed and can be useful to prevent certain types of abuse. Defaults to `32`. It is recommended to keep this value as low as possible.
+
+## Errors
+
+The middlewares provided by this module create errors using the
+[`http-errors` module](https://www.npmjs.com/package/http-errors). The errors
+will typically have a `status`/`statusCode` property that contains the suggested
+HTTP response code, an `expose` property to determine if the `message` property
+should be displayed to the client, a `type` property to determine the type of
+error without matching against the `message`, and a `body` property containing
+the read body, if available.
+
+The following are the common errors created, though any error can come through
+for various reasons.
+
+### content encoding unsupported
+
+This error will occur when the request had a `Content-Encoding` header that
+contained an encoding but the "inflation" option was set to `false`. The
+`status` property is set to `415`, the `type` property is set to
+`'encoding.unsupported'`, and the `charset` property will be set to the
+encoding that is unsupported.
+
+### entity parse failed
+
+This error will occur when the request contained an entity that could not be
+parsed by the middleware. The `status` property is set to `400`, the `type`
+property is set to `'entity.parse.failed'`, and the `body` property is set to
+the entity value that failed parsing.
+
+### entity verify failed
+
+This error will occur when the request contained an entity that could not be
+failed verification by the defined `verify` option. The `status` property is
+set to `403`, the `type` property is set to `'entity.verify.failed'`, and the
+`body` property is set to the entity value that failed verification.
+
+### request aborted
+
+This error will occur when the request is aborted by the client before reading
+the body has finished. The `received` property will be set to the number of
+bytes received before the request was aborted and the `expected` property is
+set to the number of expected bytes. The `status` property is set to `400`
+and `type` property is set to `'request.aborted'`.
+
+### request entity too large
+
+This error will occur when the request body's size is larger than the "limit"
+option. The `limit` property will be set to the byte limit and the `length`
+property will be set to the request body's length. The `status` property is
+set to `413` and the `type` property is set to `'entity.too.large'`.
+
+### request size did not match content length
+
+This error will occur when the request's length did not match the length from
+the `Content-Length` header. This typically occurs when the request is malformed,
+typically when the `Content-Length` header was calculated based on characters
+instead of bytes. The `status` property is set to `400` and the `type` property
+is set to `'request.size.invalid'`.
+
+### stream encoding should not be set
+
+This error will occur when something called the `req.setEncoding` method prior
+to this middleware. This module operates directly on bytes only and you cannot
+call `req.setEncoding` when using this module. The `status` property is set to
+`500` and the `type` property is set to `'stream.encoding.set'`.
+
+### stream is not readable
+
+This error will occur when the request is no longer readable when this middleware
+attempts to read it. This typically means something other than a middleware from
+this module read the request body already and the middleware was also configured to
+read the same request. The `status` property is set to `500` and the `type`
+property is set to `'stream.not.readable'`.
+
+### too many parameters
+
+This error will occur when the content of the request exceeds the configured
+`parameterLimit` for the `urlencoded` parser. The `status` property is set to
+`413` and the `type` property is set to `'parameters.too.many'`.
+
+### unsupported charset "BOGUS"
+
+This error will occur when the request had a charset parameter in the
+`Content-Type` header, but the `iconv-lite` module does not support it OR the
+parser does not support it. The charset is contained in the message as well
+as in the `charset` property. The `status` property is set to `415`, the
+`type` property is set to `'charset.unsupported'`, and the `charset` property
+is set to the charset that is unsupported.
+
+### unsupported content encoding "bogus"
+
+This error will occur when the request had a `Content-Encoding` header that
+contained an unsupported encoding. The encoding is contained in the message
+as well as in the `encoding` property. The `status` property is set to `415`,
+the `type` property is set to `'encoding.unsupported'`, and the `encoding`
+property is set to the encoding that is unsupported.
+
+### The input exceeded the depth
+
+This error occurs when using `bodyParser.urlencoded` with the `extended` property set to `true` and the input exceeds the configured `depth` option. The `status` property is set to `400`. It is recommended to review the `depth` option and evaluate if it requires a higher value. When the `depth` option is set to `32` (default value), the error will not be thrown.
+
+## Examples
+
+### Express/Connect top-level generic
+
+This example demonstrates adding a generic JSON and URL-encoded parser as a
+top-level middleware, which will parse the bodies of all incoming requests.
+This is the simplest setup.
+
+```js
+var express = require('express')
+var bodyParser = require('body-parser')
+
+var app = express()
+
+// parse application/x-www-form-urlencoded
+app.use(bodyParser.urlencoded({ extended: false }))
+
+// parse application/json
+app.use(bodyParser.json())
+
+app.use(function (req, res) {
+  res.setHeader('Content-Type', 'text/plain')
+  res.write('you posted:\n')
+  res.end(JSON.stringify(req.body, null, 2))
+})
+```
+
+### Express route-specific
+
+This example demonstrates adding body parsers specifically to the routes that
+need them. In general, this is the most recommended way to use body-parser with
+Express.
+
+```js
+var express = require('express')
+var bodyParser = require('body-parser')
+
+var app = express()
+
+// create application/json parser
+var jsonParser = bodyParser.json()
+
+// create application/x-www-form-urlencoded parser
+var urlencodedParser = bodyParser.urlencoded({ extended: false })
+
+// POST /login gets urlencoded bodies
+app.post('/login', urlencodedParser, function (req, res) {
+  res.send('welcome, ' + req.body.username)
+})
+
+// POST /api/users gets JSON bodies
+app.post('/api/users', jsonParser, function (req, res) {
+  // create user in req.body
+})
+```
+
+### Change accepted type for parsers
+
+All the parsers accept a `type` option which allows you to change the
+`Content-Type` that the middleware will parse.
+
+```js
+var express = require('express')
+var bodyParser = require('body-parser')
+
+var app = express()
+
+// parse various different custom JSON types as JSON
+app.use(bodyParser.json({ type: 'application/*+json' }))
+
+// parse some custom thing into a Buffer
+app.use(bodyParser.raw({ type: 'application/vnd.custom-type' }))
+
+// parse an HTML body into a string
+app.use(bodyParser.text({ type: 'text/html' }))
+```
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://badgen.net/github/checks/expressjs/body-parser/master?label=ci
+[ci-url]: https://github.com/expressjs/body-parser/actions/workflows/ci.yml
+[coveralls-image]: https://badgen.net/coveralls/c/github/expressjs/body-parser/master
+[coveralls-url]: https://coveralls.io/r/expressjs/body-parser?branch=master
+[node-version-image]: https://badgen.net/npm/node/body-parser
+[node-version-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/body-parser
+[npm-url]: https://npmjs.org/package/body-parser
+[npm-version-image]: https://badgen.net/npm/v/body-parser
+[ossf-scorecard-badge]: https://api.scorecard.dev/projects/github.com/expressjs/body-parser/badge
+[ossf-scorecard-visualizer]: https://ossf.github.io/scorecard-visualizer/#/projects/github.com/expressjs/body-parser
\ No newline at end of file
diff --git a/backend/node_modules/body-parser/SECURITY.md b/backend/node_modules/body-parser/SECURITY.md
new file mode 100644
index 0000000..9694d42
--- /dev/null
+++ b/backend/node_modules/body-parser/SECURITY.md
@@ -0,0 +1,25 @@
+# Security Policies and Procedures
+
+## Reporting a Bug
+
+The Express team and community take all security bugs seriously. Thank you
+for improving the security of Express. We appreciate your efforts and
+responsible disclosure and will make every effort to acknowledge your
+contributions.
+
+Report security bugs by emailing the current owner(s) of `body-parser`. This
+information can be found in the npm registry using the command
+`npm owner ls body-parser`.
+If unsure or unable to get the information from the above, open an issue
+in the [project issue tracker](https://github.com/expressjs/body-parser/issues)
+asking for the current contact information.
+
+To ensure the timely response to your report, please ensure that the entirety
+of the report is contained within the email body and not solely behind a web
+link or an attachment.
+
+At least one owner will acknowledge your email within 48 hours, and will send a
+more detailed response within 48 hours indicating the next steps in handling
+your report. After the initial reply to your report, the owners will
+endeavor to keep you informed of the progress towards a fix and full
+announcement, and may ask for additional information or guidance.
diff --git a/backend/node_modules/body-parser/index.js b/backend/node_modules/body-parser/index.js
new file mode 100644
index 0000000..bb24d73
--- /dev/null
+++ b/backend/node_modules/body-parser/index.js
@@ -0,0 +1,156 @@
+/*!
+ * body-parser
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var deprecate = require('depd')('body-parser')
+
+/**
+ * Cache of loaded parsers.
+ * @private
+ */
+
+var parsers = Object.create(null)
+
+/**
+ * @typedef Parsers
+ * @type {function}
+ * @property {function} json
+ * @property {function} raw
+ * @property {function} text
+ * @property {function} urlencoded
+ */
+
+/**
+ * Module exports.
+ * @type {Parsers}
+ */
+
+exports = module.exports = deprecate.function(bodyParser,
+  'bodyParser: use individual json/urlencoded middlewares')
+
+/**
+ * JSON parser.
+ * @public
+ */
+
+Object.defineProperty(exports, 'json', {
+  configurable: true,
+  enumerable: true,
+  get: createParserGetter('json')
+})
+
+/**
+ * Raw parser.
+ * @public
+ */
+
+Object.defineProperty(exports, 'raw', {
+  configurable: true,
+  enumerable: true,
+  get: createParserGetter('raw')
+})
+
+/**
+ * Text parser.
+ * @public
+ */
+
+Object.defineProperty(exports, 'text', {
+  configurable: true,
+  enumerable: true,
+  get: createParserGetter('text')
+})
+
+/**
+ * URL-encoded parser.
+ * @public
+ */
+
+Object.defineProperty(exports, 'urlencoded', {
+  configurable: true,
+  enumerable: true,
+  get: createParserGetter('urlencoded')
+})
+
+/**
+ * Create a middleware to parse json and urlencoded bodies.
+ *
+ * @param {object} [options]
+ * @return {function}
+ * @deprecated
+ * @public
+ */
+
+function bodyParser (options) {
+  // use default type for parsers
+  var opts = Object.create(options || null, {
+    type: {
+      configurable: true,
+      enumerable: true,
+      value: undefined,
+      writable: true
+    }
+  })
+
+  var _urlencoded = exports.urlencoded(opts)
+  var _json = exports.json(opts)
+
+  return function bodyParser (req, res, next) {
+    _json(req, res, function (err) {
+      if (err) return next(err)
+      _urlencoded(req, res, next)
+    })
+  }
+}
+
+/**
+ * Create a getter for loading a parser.
+ * @private
+ */
+
+function createParserGetter (name) {
+  return function get () {
+    return loadParser(name)
+  }
+}
+
+/**
+ * Load a parser module.
+ * @private
+ */
+
+function loadParser (parserName) {
+  var parser = parsers[parserName]
+
+  if (parser !== undefined) {
+    return parser
+  }
+
+  // this uses a switch for static require analysis
+  switch (parserName) {
+    case 'json':
+      parser = require('./lib/types/json')
+      break
+    case 'raw':
+      parser = require('./lib/types/raw')
+      break
+    case 'text':
+      parser = require('./lib/types/text')
+      break
+    case 'urlencoded':
+      parser = require('./lib/types/urlencoded')
+      break
+  }
+
+  // store to prevent invoking require()
+  return (parsers[parserName] = parser)
+}
diff --git a/backend/node_modules/body-parser/lib/read.js b/backend/node_modules/body-parser/lib/read.js
new file mode 100644
index 0000000..fce6283
--- /dev/null
+++ b/backend/node_modules/body-parser/lib/read.js
@@ -0,0 +1,205 @@
+/*!
+ * body-parser
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var createError = require('http-errors')
+var destroy = require('destroy')
+var getBody = require('raw-body')
+var iconv = require('iconv-lite')
+var onFinished = require('on-finished')
+var unpipe = require('unpipe')
+var zlib = require('zlib')
+
+/**
+ * Module exports.
+ */
+
+module.exports = read
+
+/**
+ * Read a request into a buffer and parse.
+ *
+ * @param {object} req
+ * @param {object} res
+ * @param {function} next
+ * @param {function} parse
+ * @param {function} debug
+ * @param {object} options
+ * @private
+ */
+
+function read (req, res, next, parse, debug, options) {
+  var length
+  var opts = options
+  var stream
+
+  // flag as parsed
+  req._body = true
+
+  // read options
+  var encoding = opts.encoding !== null
+    ? opts.encoding
+    : null
+  var verify = opts.verify
+
+  try {
+    // get the content stream
+    stream = contentstream(req, debug, opts.inflate)
+    length = stream.length
+    stream.length = undefined
+  } catch (err) {
+    return next(err)
+  }
+
+  // set raw-body options
+  opts.length = length
+  opts.encoding = verify
+    ? null
+    : encoding
+
+  // assert charset is supported
+  if (opts.encoding === null && encoding !== null && !iconv.encodingExists(encoding)) {
+    return next(createError(415, 'unsupported charset "' + encoding.toUpperCase() + '"', {
+      charset: encoding.toLowerCase(),
+      type: 'charset.unsupported'
+    }))
+  }
+
+  // read body
+  debug('read body')
+  getBody(stream, opts, function (error, body) {
+    if (error) {
+      var _error
+
+      if (error.type === 'encoding.unsupported') {
+        // echo back charset
+        _error = createError(415, 'unsupported charset "' + encoding.toUpperCase() + '"', {
+          charset: encoding.toLowerCase(),
+          type: 'charset.unsupported'
+        })
+      } else {
+        // set status code on error
+        _error = createError(400, error)
+      }
+
+      // unpipe from stream and destroy
+      if (stream !== req) {
+        unpipe(req)
+        destroy(stream, true)
+      }
+
+      // read off entire request
+      dump(req, function onfinished () {
+        next(createError(400, _error))
+      })
+      return
+    }
+
+    // verify
+    if (verify) {
+      try {
+        debug('verify body')
+        verify(req, res, body, encoding)
+      } catch (err) {
+        next(createError(403, err, {
+          body: body,
+          type: err.type || 'entity.verify.failed'
+        }))
+        return
+      }
+    }
+
+    // parse
+    var str = body
+    try {
+      debug('parse body')
+      str = typeof body !== 'string' && encoding !== null
+        ? iconv.decode(body, encoding)
+        : body
+      req.body = parse(str)
+    } catch (err) {
+      next(createError(400, err, {
+        body: str,
+        type: err.type || 'entity.parse.failed'
+      }))
+      return
+    }
+
+    next()
+  })
+}
+
+/**
+ * Get the content stream of the request.
+ *
+ * @param {object} req
+ * @param {function} debug
+ * @param {boolean} [inflate=true]
+ * @return {object}
+ * @api private
+ */
+
+function contentstream (req, debug, inflate) {
+  var encoding = (req.headers['content-encoding'] || 'identity').toLowerCase()
+  var length = req.headers['content-length']
+  var stream
+
+  debug('content-encoding "%s"', encoding)
+
+  if (inflate === false && encoding !== 'identity') {
+    throw createError(415, 'content encoding unsupported', {
+      encoding: encoding,
+      type: 'encoding.unsupported'
+    })
+  }
+
+  switch (encoding) {
+    case 'deflate':
+      stream = zlib.createInflate()
+      debug('inflate body')
+      req.pipe(stream)
+      break
+    case 'gzip':
+      stream = zlib.createGunzip()
+      debug('gunzip body')
+      req.pipe(stream)
+      break
+    case 'identity':
+      stream = req
+      stream.length = length
+      break
+    default:
+      throw createError(415, 'unsupported content encoding "' + encoding + '"', {
+        encoding: encoding,
+        type: 'encoding.unsupported'
+      })
+  }
+
+  return stream
+}
+
+/**
+ * Dump the contents of a request.
+ *
+ * @param {object} req
+ * @param {function} callback
+ * @api private
+ */
+
+function dump (req, callback) {
+  if (onFinished.isFinished(req)) {
+    callback(null)
+  } else {
+    onFinished(req, callback)
+    req.resume()
+  }
+}
diff --git a/backend/node_modules/body-parser/lib/types/json.js b/backend/node_modules/body-parser/lib/types/json.js
new file mode 100644
index 0000000..59f3f7e
--- /dev/null
+++ b/backend/node_modules/body-parser/lib/types/json.js
@@ -0,0 +1,247 @@
+/*!
+ * body-parser
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var bytes = require('bytes')
+var contentType = require('content-type')
+var createError = require('http-errors')
+var debug = require('debug')('body-parser:json')
+var read = require('../read')
+var typeis = require('type-is')
+
+/**
+ * Module exports.
+ */
+
+module.exports = json
+
+/**
+ * RegExp to match the first non-space in a string.
+ *
+ * Allowed whitespace is defined in RFC 7159:
+ *
+ *    ws = *(
+ *            %x20 /              ; Space
+ *            %x09 /              ; Horizontal tab
+ *            %x0A /              ; Line feed or New line
+ *            %x0D )              ; Carriage return
+ */
+
+var FIRST_CHAR_REGEXP = /^[\x20\x09\x0a\x0d]*([^\x20\x09\x0a\x0d])/ // eslint-disable-line no-control-regex
+
+var JSON_SYNTAX_CHAR = '#'
+var JSON_SYNTAX_REGEXP = /#+/g
+
+/**
+ * Create a middleware to parse JSON bodies.
+ *
+ * @param {object} [options]
+ * @return {function}
+ * @public
+ */
+
+function json (options) {
+  var opts = options || {}
+
+  var limit = typeof opts.limit !== 'number'
+    ? bytes.parse(opts.limit || '100kb')
+    : opts.limit
+  var inflate = opts.inflate !== false
+  var reviver = opts.reviver
+  var strict = opts.strict !== false
+  var type = opts.type || 'application/json'
+  var verify = opts.verify || false
+
+  if (verify !== false && typeof verify !== 'function') {
+    throw new TypeError('option verify must be function')
+  }
+
+  // create the appropriate type checking function
+  var shouldParse = typeof type !== 'function'
+    ? typeChecker(type)
+    : type
+
+  function parse (body) {
+    if (body.length === 0) {
+      // special-case empty json body, as it's a common client-side mistake
+      // TODO: maybe make this configurable or part of "strict" option
+      return {}
+    }
+
+    if (strict) {
+      var first = firstchar(body)
+
+      if (first !== '{' && first !== '[') {
+        debug('strict violation')
+        throw createStrictSyntaxError(body, first)
+      }
+    }
+
+    try {
+      debug('parse json')
+      return JSON.parse(body, reviver)
+    } catch (e) {
+      throw normalizeJsonSyntaxError(e, {
+        message: e.message,
+        stack: e.stack
+      })
+    }
+  }
+
+  return function jsonParser (req, res, next) {
+    if (req._body) {
+      debug('body already parsed')
+      next()
+      return
+    }
+
+    req.body = req.body || {}
+
+    // skip requests without bodies
+    if (!typeis.hasBody(req)) {
+      debug('skip empty body')
+      next()
+      return
+    }
+
+    debug('content-type %j', req.headers['content-type'])
+
+    // determine if request should be parsed
+    if (!shouldParse(req)) {
+      debug('skip parsing')
+      next()
+      return
+    }
+
+    // assert charset per RFC 7159 sec 8.1
+    var charset = getCharset(req) || 'utf-8'
+    if (charset.slice(0, 4) !== 'utf-') {
+      debug('invalid charset')
+      next(createError(415, 'unsupported charset "' + charset.toUpperCase() + '"', {
+        charset: charset,
+        type: 'charset.unsupported'
+      }))
+      return
+    }
+
+    // read
+    read(req, res, next, parse, debug, {
+      encoding: charset,
+      inflate: inflate,
+      limit: limit,
+      verify: verify
+    })
+  }
+}
+
+/**
+ * Create strict violation syntax error matching native error.
+ *
+ * @param {string} str
+ * @param {string} char
+ * @return {Error}
+ * @private
+ */
+
+function createStrictSyntaxError (str, char) {
+  var index = str.indexOf(char)
+  var partial = ''
+
+  if (index !== -1) {
+    partial = str.substring(0, index) + JSON_SYNTAX_CHAR
+
+    for (var i = index + 1; i < str.length; i++) {
+      partial += JSON_SYNTAX_CHAR
+    }
+  }
+
+  try {
+    JSON.parse(partial); /* istanbul ignore next */ throw new SyntaxError('strict violation')
+  } catch (e) {
+    return normalizeJsonSyntaxError(e, {
+      message: e.message.replace(JSON_SYNTAX_REGEXP, function (placeholder) {
+        return str.substring(index, index + placeholder.length)
+      }),
+      stack: e.stack
+    })
+  }
+}
+
+/**
+ * Get the first non-whitespace character in a string.
+ *
+ * @param {string} str
+ * @return {function}
+ * @private
+ */
+
+function firstchar (str) {
+  var match = FIRST_CHAR_REGEXP.exec(str)
+
+  return match
+    ? match[1]
+    : undefined
+}
+
+/**
+ * Get the charset of a request.
+ *
+ * @param {object} req
+ * @api private
+ */
+
+function getCharset (req) {
+  try {
+    return (contentType.parse(req).parameters.charset || '').toLowerCase()
+  } catch (e) {
+    return undefined
+  }
+}
+
+/**
+ * Normalize a SyntaxError for JSON.parse.
+ *
+ * @param {SyntaxError} error
+ * @param {object} obj
+ * @return {SyntaxError}
+ */
+
+function normalizeJsonSyntaxError (error, obj) {
+  var keys = Object.getOwnPropertyNames(error)
+
+  for (var i = 0; i < keys.length; i++) {
+    var key = keys[i]
+    if (key !== 'stack' && key !== 'message') {
+      delete error[key]
+    }
+  }
+
+  // replace stack before message for Node.js 0.10 and below
+  error.stack = obj.stack.replace(error.message, obj.message)
+  error.message = obj.message
+
+  return error
+}
+
+/**
+ * Get the simple type checker.
+ *
+ * @param {string} type
+ * @return {function}
+ */
+
+function typeChecker (type) {
+  return function checkType (req) {
+    return Boolean(typeis(req, type))
+  }
+}
diff --git a/backend/node_modules/body-parser/lib/types/raw.js b/backend/node_modules/body-parser/lib/types/raw.js
new file mode 100644
index 0000000..f5d1b67
--- /dev/null
+++ b/backend/node_modules/body-parser/lib/types/raw.js
@@ -0,0 +1,101 @@
+/*!
+ * body-parser
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ */
+
+var bytes = require('bytes')
+var debug = require('debug')('body-parser:raw')
+var read = require('../read')
+var typeis = require('type-is')
+
+/**
+ * Module exports.
+ */
+
+module.exports = raw
+
+/**
+ * Create a middleware to parse raw bodies.
+ *
+ * @param {object} [options]
+ * @return {function}
+ * @api public
+ */
+
+function raw (options) {
+  var opts = options || {}
+
+  var inflate = opts.inflate !== false
+  var limit = typeof opts.limit !== 'number'
+    ? bytes.parse(opts.limit || '100kb')
+    : opts.limit
+  var type = opts.type || 'application/octet-stream'
+  var verify = opts.verify || false
+
+  if (verify !== false && typeof verify !== 'function') {
+    throw new TypeError('option verify must be function')
+  }
+
+  // create the appropriate type checking function
+  var shouldParse = typeof type !== 'function'
+    ? typeChecker(type)
+    : type
+
+  function parse (buf) {
+    return buf
+  }
+
+  return function rawParser (req, res, next) {
+    if (req._body) {
+      debug('body already parsed')
+      next()
+      return
+    }
+
+    req.body = req.body || {}
+
+    // skip requests without bodies
+    if (!typeis.hasBody(req)) {
+      debug('skip empty body')
+      next()
+      return
+    }
+
+    debug('content-type %j', req.headers['content-type'])
+
+    // determine if request should be parsed
+    if (!shouldParse(req)) {
+      debug('skip parsing')
+      next()
+      return
+    }
+
+    // read
+    read(req, res, next, parse, debug, {
+      encoding: null,
+      inflate: inflate,
+      limit: limit,
+      verify: verify
+    })
+  }
+}
+
+/**
+ * Get the simple type checker.
+ *
+ * @param {string} type
+ * @return {function}
+ */
+
+function typeChecker (type) {
+  return function checkType (req) {
+    return Boolean(typeis(req, type))
+  }
+}
diff --git a/backend/node_modules/body-parser/lib/types/text.js b/backend/node_modules/body-parser/lib/types/text.js
new file mode 100644
index 0000000..083a009
--- /dev/null
+++ b/backend/node_modules/body-parser/lib/types/text.js
@@ -0,0 +1,121 @@
+/*!
+ * body-parser
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ */
+
+var bytes = require('bytes')
+var contentType = require('content-type')
+var debug = require('debug')('body-parser:text')
+var read = require('../read')
+var typeis = require('type-is')
+
+/**
+ * Module exports.
+ */
+
+module.exports = text
+
+/**
+ * Create a middleware to parse text bodies.
+ *
+ * @param {object} [options]
+ * @return {function}
+ * @api public
+ */
+
+function text (options) {
+  var opts = options || {}
+
+  var defaultCharset = opts.defaultCharset || 'utf-8'
+  var inflate = opts.inflate !== false
+  var limit = typeof opts.limit !== 'number'
+    ? bytes.parse(opts.limit || '100kb')
+    : opts.limit
+  var type = opts.type || 'text/plain'
+  var verify = opts.verify || false
+
+  if (verify !== false && typeof verify !== 'function') {
+    throw new TypeError('option verify must be function')
+  }
+
+  // create the appropriate type checking function
+  var shouldParse = typeof type !== 'function'
+    ? typeChecker(type)
+    : type
+
+  function parse (buf) {
+    return buf
+  }
+
+  return function textParser (req, res, next) {
+    if (req._body) {
+      debug('body already parsed')
+      next()
+      return
+    }
+
+    req.body = req.body || {}
+
+    // skip requests without bodies
+    if (!typeis.hasBody(req)) {
+      debug('skip empty body')
+      next()
+      return
+    }
+
+    debug('content-type %j', req.headers['content-type'])
+
+    // determine if request should be parsed
+    if (!shouldParse(req)) {
+      debug('skip parsing')
+      next()
+      return
+    }
+
+    // get charset
+    var charset = getCharset(req) || defaultCharset
+
+    // read
+    read(req, res, next, parse, debug, {
+      encoding: charset,
+      inflate: inflate,
+      limit: limit,
+      verify: verify
+    })
+  }
+}
+
+/**
+ * Get the charset of a request.
+ *
+ * @param {object} req
+ * @api private
+ */
+
+function getCharset (req) {
+  try {
+    return (contentType.parse(req).parameters.charset || '').toLowerCase()
+  } catch (e) {
+    return undefined
+  }
+}
+
+/**
+ * Get the simple type checker.
+ *
+ * @param {string} type
+ * @return {function}
+ */
+
+function typeChecker (type) {
+  return function checkType (req) {
+    return Boolean(typeis(req, type))
+  }
+}
diff --git a/backend/node_modules/body-parser/lib/types/urlencoded.js b/backend/node_modules/body-parser/lib/types/urlencoded.js
new file mode 100644
index 0000000..2bd4485
--- /dev/null
+++ b/backend/node_modules/body-parser/lib/types/urlencoded.js
@@ -0,0 +1,307 @@
+/*!
+ * body-parser
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var bytes = require('bytes')
+var contentType = require('content-type')
+var createError = require('http-errors')
+var debug = require('debug')('body-parser:urlencoded')
+var deprecate = require('depd')('body-parser')
+var read = require('../read')
+var typeis = require('type-is')
+
+/**
+ * Module exports.
+ */
+
+module.exports = urlencoded
+
+/**
+ * Cache of parser modules.
+ */
+
+var parsers = Object.create(null)
+
+/**
+ * Create a middleware to parse urlencoded bodies.
+ *
+ * @param {object} [options]
+ * @return {function}
+ * @public
+ */
+
+function urlencoded (options) {
+  var opts = options || {}
+
+  // notice because option default will flip in next major
+  if (opts.extended === undefined) {
+    deprecate('undefined extended: provide extended option')
+  }
+
+  var extended = opts.extended !== false
+  var inflate = opts.inflate !== false
+  var limit = typeof opts.limit !== 'number'
+    ? bytes.parse(opts.limit || '100kb')
+    : opts.limit
+  var type = opts.type || 'application/x-www-form-urlencoded'
+  var verify = opts.verify || false
+  var depth = typeof opts.depth !== 'number'
+    ? Number(opts.depth || 32)
+    : opts.depth
+
+  if (verify !== false && typeof verify !== 'function') {
+    throw new TypeError('option verify must be function')
+  }
+
+  // create the appropriate query parser
+  var queryparse = extended
+    ? extendedparser(opts)
+    : simpleparser(opts)
+
+  // create the appropriate type checking function
+  var shouldParse = typeof type !== 'function'
+    ? typeChecker(type)
+    : type
+
+  function parse (body) {
+    return body.length
+      ? queryparse(body)
+      : {}
+  }
+
+  return function urlencodedParser (req, res, next) {
+    if (req._body) {
+      debug('body already parsed')
+      next()
+      return
+    }
+
+    req.body = req.body || {}
+
+    // skip requests without bodies
+    if (!typeis.hasBody(req)) {
+      debug('skip empty body')
+      next()
+      return
+    }
+
+    debug('content-type %j', req.headers['content-type'])
+
+    // determine if request should be parsed
+    if (!shouldParse(req)) {
+      debug('skip parsing')
+      next()
+      return
+    }
+
+    // assert charset
+    var charset = getCharset(req) || 'utf-8'
+    if (charset !== 'utf-8') {
+      debug('invalid charset')
+      next(createError(415, 'unsupported charset "' + charset.toUpperCase() + '"', {
+        charset: charset,
+        type: 'charset.unsupported'
+      }))
+      return
+    }
+
+    // read
+    read(req, res, next, parse, debug, {
+      debug: debug,
+      encoding: charset,
+      inflate: inflate,
+      limit: limit,
+      verify: verify,
+      depth: depth
+    })
+  }
+}
+
+/**
+ * Get the extended query parser.
+ *
+ * @param {object} options
+ */
+
+function extendedparser (options) {
+  var parameterLimit = options.parameterLimit !== undefined
+    ? options.parameterLimit
+    : 1000
+
+  var depth = typeof options.depth !== 'number'
+    ? Number(options.depth || 32)
+    : options.depth
+  var parse = parser('qs')
+
+  if (isNaN(parameterLimit) || parameterLimit < 1) {
+    throw new TypeError('option parameterLimit must be a positive number')
+  }
+
+  if (isNaN(depth) || depth < 0) {
+    throw new TypeError('option depth must be a zero or a positive number')
+  }
+
+  if (isFinite(parameterLimit)) {
+    parameterLimit = parameterLimit | 0
+  }
+
+  return function queryparse (body) {
+    var paramCount = parameterCount(body, parameterLimit)
+
+    if (paramCount === undefined) {
+      debug('too many parameters')
+      throw createError(413, 'too many parameters', {
+        type: 'parameters.too.many'
+      })
+    }
+
+    var arrayLimit = Math.max(100, paramCount)
+
+    debug('parse extended urlencoding')
+    try {
+      return parse(body, {
+        allowPrototypes: true,
+        arrayLimit: arrayLimit,
+        depth: depth,
+        strictDepth: true,
+        parameterLimit: parameterLimit
+      })
+    } catch (err) {
+      if (err instanceof RangeError) {
+        throw createError(400, 'The input exceeded the depth', {
+          type: 'querystring.parse.rangeError'
+        })
+      } else {
+        throw err
+      }
+    }
+  }
+}
+
+/**
+ * Get the charset of a request.
+ *
+ * @param {object} req
+ * @api private
+ */
+
+function getCharset (req) {
+  try {
+    return (contentType.parse(req).parameters.charset || '').toLowerCase()
+  } catch (e) {
+    return undefined
+  }
+}
+
+/**
+ * Count the number of parameters, stopping once limit reached
+ *
+ * @param {string} body
+ * @param {number} limit
+ * @api private
+ */
+
+function parameterCount (body, limit) {
+  var count = 0
+  var index = 0
+
+  while ((index = body.indexOf('&', index)) !== -1) {
+    count++
+    index++
+
+    if (count === limit) {
+      return undefined
+    }
+  }
+
+  return count
+}
+
+/**
+ * Get parser for module name dynamically.
+ *
+ * @param {string} name
+ * @return {function}
+ * @api private
+ */
+
+function parser (name) {
+  var mod = parsers[name]
+
+  if (mod !== undefined) {
+    return mod.parse
+  }
+
+  // this uses a switch for static require analysis
+  switch (name) {
+    case 'qs':
+      mod = require('qs')
+      break
+    case 'querystring':
+      mod = require('querystring')
+      break
+  }
+
+  // store to prevent invoking require()
+  parsers[name] = mod
+
+  return mod.parse
+}
+
+/**
+ * Get the simple query parser.
+ *
+ * @param {object} options
+ */
+
+function simpleparser (options) {
+  var parameterLimit = options.parameterLimit !== undefined
+    ? options.parameterLimit
+    : 1000
+  var parse = parser('querystring')
+
+  if (isNaN(parameterLimit) || parameterLimit < 1) {
+    throw new TypeError('option parameterLimit must be a positive number')
+  }
+
+  if (isFinite(parameterLimit)) {
+    parameterLimit = parameterLimit | 0
+  }
+
+  return function queryparse (body) {
+    var paramCount = parameterCount(body, parameterLimit)
+
+    if (paramCount === undefined) {
+      debug('too many parameters')
+      throw createError(413, 'too many parameters', {
+        type: 'parameters.too.many'
+      })
+    }
+
+    debug('parse urlencoding')
+    return parse(body, undefined, undefined, { maxKeys: parameterLimit })
+  }
+}
+
+/**
+ * Get the simple type checker.
+ *
+ * @param {string} type
+ * @return {function}
+ */
+
+function typeChecker (type) {
+  return function checkType (req) {
+    return Boolean(typeis(req, type))
+  }
+}
diff --git a/backend/node_modules/body-parser/package.json b/backend/node_modules/body-parser/package.json
new file mode 100644
index 0000000..3c9926f
--- /dev/null
+++ b/backend/node_modules/body-parser/package.json
@@ -0,0 +1,56 @@
+{
+  "name": "body-parser",
+  "description": "Node.js body parsing middleware",
+  "version": "1.20.3",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)"
+  ],
+  "license": "MIT",
+  "repository": "expressjs/body-parser",
+  "dependencies": {
+    "bytes": "3.1.2",
+    "content-type": "~1.0.5",
+    "debug": "2.6.9",
+    "depd": "2.0.0",
+    "destroy": "1.2.0",
+    "http-errors": "2.0.0",
+    "iconv-lite": "0.4.24",
+    "on-finished": "2.4.1",
+    "qs": "6.13.0",
+    "raw-body": "2.5.2",
+    "type-is": "~1.6.18",
+    "unpipe": "1.0.0"
+  },
+  "devDependencies": {
+    "eslint": "8.34.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.27.5",
+    "eslint-plugin-markdown": "3.0.0",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "6.1.1",
+    "eslint-plugin-standard": "4.1.0",
+    "methods": "1.1.2",
+    "mocha": "10.2.0",
+    "nyc": "15.1.0",
+    "safe-buffer": "5.2.1",
+    "supertest": "6.3.3"
+  },
+  "files": [
+    "lib/",
+    "LICENSE",
+    "HISTORY.md",
+    "SECURITY.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.8",
+    "npm": "1.2.8000 || >= 1.4.16"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --require test/support/env --reporter spec --check-leaks --bail test/",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
+  }
+}
diff --git a/backend/node_modules/bson/LICENSE.md b/backend/node_modules/bson/LICENSE.md
new file mode 100644
index 0000000..261eeb9
--- /dev/null
+++ b/backend/node_modules/bson/LICENSE.md
@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
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+      "Licensor" shall mean the copyright owner or entity authorized by
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+
+      "Legal Entity" shall mean the union of the acting entity and all
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+
+      "You" (or "Your") shall mean an individual or Legal Entity
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+      You may add Your own copyright statement to Your modifications and
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+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
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+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
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+   6. Trademarks. This License does not grant permission to use the trade
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+      whether in tort (including negligence), contract, or otherwise,
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+      To apply the Apache License to your work, attach the following
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diff --git a/backend/node_modules/bson/README.md b/backend/node_modules/bson/README.md
new file mode 100644
index 0000000..c658e09
--- /dev/null
+++ b/backend/node_modules/bson/README.md
@@ -0,0 +1,280 @@
+# BSON parser
+
+BSON is short for "Binary JSON," and is the binary-encoded serialization of JSON-like documents.
+You can learn more about it in [the specification](http://bsonspec.org).
+
+### Table of Contents
+
+- [Usage](#usage)
+- [Bugs/Feature Requests](#bugs--feature-requests)
+- [Installation](#installation)
+- [Documentation](#documentation)
+- [FAQ](#faq)
+
+
+### Release Integrity
+
+Releases are created automatically and signed using the [Node team's GPG key](https://pgp.mongodb.com/node-driver.asc). This applies to the git tag as well as all release packages provided as part of a GitHub release. To verify the provided packages, download the key and import it using gpg:
+
+```shell
+gpg --import node-driver.asc
+```
+
+The GitHub release contains a detached signature file for the NPM package (named
+`bson-X.Y.Z.tgz.sig`).
+
+The following command returns the link npm package. 
+```shell
+npm view bson@vX.Y.Z dist.tarball 
+```
+
+Using the result of the above command, a `curl` command can return the official npm package for the release.
+
+To verify the integrity of the downloaded package, run the following command:
+```shell
+gpg --verify bson-X.Y.Z.tgz.sig bson-X.Y.Z.tgz
+```
+
+>[!Note]
+No verification is done when using npm to install the package. The contents of the Github tarball and npm's tarball are identical.
+
+## Bugs / Feature Requests
+
+Think you've found a bug? Want to see a new feature in `bson`? Please open a case in our issue management tool, JIRA:
+
+1. Create an account and login: [jira.mongodb.org](https://jira.mongodb.org)
+2. Navigate to the NODE project: [jira.mongodb.org/browse/NODE](https://jira.mongodb.org/browse/NODE)
+3. Click **Create Issue** - Please provide as much information as possible about the issue and how to reproduce it.
+
+Bug reports in JIRA for the NODE driver project are **public**.
+
+## Usage
+
+To build a new version perform the following operations:
+
+```
+npm install
+npm run build
+```
+
+### Node.js or Bundling Usage
+
+When using a bundler or Node.js you can import bson using the package name:
+
+```js
+import { BSON, EJSON, ObjectId } from 'bson';
+// or:
+// const { BSON, EJSON, ObjectId } = require('bson');
+
+const bytes = BSON.serialize({ _id: new ObjectId() });
+console.log(bytes);
+const doc = BSON.deserialize(bytes);
+console.log(EJSON.stringify(doc));
+// {"_id":{"$oid":"..."}}
+```
+
+### Browser Usage
+
+If you are working directly in the browser without a bundler please use the `.mjs` bundle like so:
+
+```html
+<script type="module">
+  import { BSON, EJSON, ObjectId } from './lib/bson.mjs';
+
+  const bytes = BSON.serialize({ _id: new ObjectId() });
+  console.log(bytes);
+  const doc = BSON.deserialize(bytes);
+  console.log(EJSON.stringify(doc));
+  // {"_id":{"$oid":"..."}}
+</script>
+```
+
+## Installation
+
+```sh
+npm install bson
+```
+
+### MongoDB Node.js Driver Version Compatibility
+
+Only the following version combinations with the [MongoDB Node.js Driver](https://github.com/mongodb/node-mongodb-native) are considered stable.
+
+|               | `bson@1.x` | `bson@4.x` | `bson@5.x` | `bson@6.x` |
+| ------------- | ---------- | ---------- | ---------- | ---------- |
+| `mongodb@6.x` | N/A        | N/A        | N/A        | ✓          |
+| `mongodb@5.x` | N/A        | N/A        | ✓          | N/A        |
+| `mongodb@4.x` | N/A        | ✓          | N/A        | N/A        |
+| `mongodb@3.x` | ✓          | N/A        | N/A        | N/A        |
+
+## Documentation
+
+### BSON
+
+[API documentation](https://mongodb.github.io/node-mongodb-native/Next/modules/BSON.html)
+
+<a name="EJSON"></a>
+
+### EJSON
+
+- [EJSON](#EJSON)
+
+  - [.parse(text, [options])](#EJSON.parse)
+
+  - [.stringify(value, [replacer], [space], [options])](#EJSON.stringify)
+
+  - [.serialize(bson, [options])](#EJSON.serialize)
+
+  - [.deserialize(ejson, [options])](#EJSON.deserialize)
+
+<a name="EJSON.parse"></a>
+
+#### _EJSON_.parse(text, [options])
+
+| Param             | Type                 | Default           | Description                                                                        |
+| ----------------- | -------------------- | ----------------- | ---------------------------------------------------------------------------------- |
+| text              | <code>string</code>  |                   |                                                                                    |
+| [options]         | <code>object</code>  |                   | Optional settings                                                                  |
+| [options.relaxed] | <code>boolean</code> | <code>true</code> | Attempt to return native JS types where possible, rather than BSON types (if true) |
+
+Parse an Extended JSON string, constructing the JavaScript value or object described by that
+string.
+
+**Example**
+
+```js
+const { EJSON } = require('bson');
+const text = '{ "int32": { "$numberInt": "10" } }';
+
+// prints { int32: { [String: '10'] _bsontype: 'Int32', value: '10' } }
+console.log(EJSON.parse(text, { relaxed: false }));
+
+// prints { int32: 10 }
+console.log(EJSON.parse(text));
+```
+
+<a name="EJSON.stringify"></a>
+
+#### _EJSON_.stringify(value, [replacer], [space], [options])
+
+| Param             | Type                                        | Default           | Description                                                                                                                                                                                                                                                                                                                                        |
+| ----------------- | ------------------------------------------- | ----------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| value             | <code>object</code>                         |                   | The value to convert to extended JSON                                                                                                                                                                                                                                                                                                              |
+| [replacer]        | <code>function</code> \| <code>array</code> |                   | A function that alters the behavior of the stringification process, or an array of String and Number objects that serve as a whitelist for selecting/filtering the properties of the value object to be included in the JSON string. If this value is null or not provided, all properties of the object are included in the resulting JSON string |
+| [space]           | <code>string</code> \| <code>number</code>  |                   | A String or Number object that's used to insert white space into the output JSON string for readability purposes.                                                                                                                                                                                                                                  |
+| [options]         | <code>object</code>                         |                   | Optional settings                                                                                                                                                                                                                                                                                                                                  |
+| [options.relaxed] | <code>boolean</code>                        | <code>true</code> | Enabled Extended JSON's `relaxed` mode                                                                                                                                                                                                                                                                                                             |
+| [options.legacy]  | <code>boolean</code>                        | <code>true</code> | Output in Extended JSON v1                                                                                                                                                                                                                                                                                                                         |
+
+Converts a BSON document to an Extended JSON string, optionally replacing values if a replacer
+function is specified or optionally including only the specified properties if a replacer array
+is specified.
+
+**Example**
+
+```js
+const { EJSON } = require('bson');
+const Int32 = require('mongodb').Int32;
+const doc = { int32: new Int32(10) };
+
+// prints '{"int32":{"$numberInt":"10"}}'
+console.log(EJSON.stringify(doc, { relaxed: false }));
+
+// prints '{"int32":10}'
+console.log(EJSON.stringify(doc));
+```
+
+<a name="EJSON.serialize"></a>
+
+#### _EJSON_.serialize(bson, [options])
+
+| Param     | Type                | Description                                          |
+| --------- | ------------------- | ---------------------------------------------------- |
+| bson      | <code>object</code> | The object to serialize                              |
+| [options] | <code>object</code> | Optional settings passed to the `stringify` function |
+
+Serializes an object to an Extended JSON string, and reparse it as a JavaScript object.
+
+<a name="EJSON.deserialize"></a>
+
+#### _EJSON_.deserialize(ejson, [options])
+
+| Param     | Type                | Description                                  |
+| --------- | ------------------- | -------------------------------------------- |
+| ejson     | <code>object</code> | The Extended JSON object to deserialize      |
+| [options] | <code>object</code> | Optional settings passed to the parse method |
+
+Deserializes an Extended JSON object into a plain JavaScript object with native/BSON types
+
+## Error Handling
+
+It is our recommendation to use `BSONError.isBSONError()` checks on errors and to avoid relying on parsing `error.message` and `error.name` strings in your code. We guarantee `BSONError.isBSONError()` checks will pass according to semver guidelines, but errors may be sub-classed or their messages may change at any time, even patch releases, as we see fit to increase the helpfulness of the errors.
+
+Any new errors we add to the driver will directly extend an existing error class and no existing error will be moved to a different parent class outside of a major release.
+This means `BSONError.isBSONError()` will always be able to accurately capture the errors that our BSON library throws.
+
+Hypothetical example: A collection in our Db has an issue with UTF-8 data:
+
+```ts
+let documentCount = 0;
+const cursor = collection.find({}, { utf8Validation: true });
+try {
+  for await (const doc of cursor) documentCount += 1;
+} catch (error) {
+  if (BSONError.isBSONError(error)) {
+    console.log(`Found the troublemaker UTF-8!: ${documentCount} ${error.message}`);
+    return documentCount;
+  }
+  throw error;
+}
+```
+
+## React Native
+
+BSON vendors the required polyfills for `TextEncoder`, `TextDecoder`, `atob`, `btoa` imported from React Native and therefore doesn't expect users to polyfill these. One additional polyfill, `crypto.getRandomValues` is recommended and can be installed with the following command:
+
+```sh
+npm install --save react-native-get-random-values
+```
+
+The following snippet should be placed at the top of the entrypoint (by default this is the root `index.js` file) for React Native projects using the BSON library. These lines must be placed for any code that imports `BSON`.
+
+```typescript
+// Required Polyfills For ReactNative
+import 'react-native-get-random-values';
+```
+
+Finally, import the `BSON` library like so:
+
+```typescript
+import { BSON, EJSON } from 'bson';
+```
+
+This will cause React Native to import the `node_modules/bson/lib/bson.rn.cjs` bundle (see the `"react-native"` setting we have in the `"exports"` section of our [package.json](./package.json).)
+
+### Technical Note about React Native module import
+
+The `"exports"` definition in our `package.json` will result in BSON's CommonJS bundle being imported in a React Native project instead of the ES module bundle. Importing the CommonJS bundle is necessary because BSON's ES module bundle of BSON uses top-level await, which is not supported syntax in [React Native's runtime hermes](https://hermesengine.dev/).
+
+## FAQ
+
+#### Why does `undefined` get converted to `null`?
+
+The `undefined` BSON type has been [deprecated for many years](http://bsonspec.org/spec.html), so this library has dropped support for it. Use the `ignoreUndefined` option (for example, from the [driver](http://mongodb.github.io/node-mongodb-native/2.2/api/MongoClient.html#connect) ) to instead remove `undefined` keys.
+
+#### How do I add custom serialization logic?
+
+This library looks for `toBSON()` functions on every path, and calls the `toBSON()` function to get the value to serialize.
+
+```javascript
+const BSON = require('bson');
+
+class CustomSerialize {
+  toBSON() {
+    return 42;
+  }
+}
+
+const obj = { answer: new CustomSerialize() };
+// "{ answer: 42 }"
+console.log(BSON.deserialize(BSON.serialize(obj)));
+```
diff --git a/backend/node_modules/bson/bson.d.ts b/backend/node_modules/bson/bson.d.ts
new file mode 100644
index 0000000..365e3a4
--- /dev/null
+++ b/backend/node_modules/bson/bson.d.ts
@@ -0,0 +1,1723 @@
+/**
+ * A class representation of the BSON Binary type.
+ * @public
+ * @category BSONType
+ */
+export declare class Binary extends BSONValue {
+    get _bsontype(): 'Binary';
+    /* Excluded from this release type: BSON_BINARY_SUBTYPE_DEFAULT */
+    /** Initial buffer default size */
+    static readonly BUFFER_SIZE = 256;
+    /** Default BSON type */
+    static readonly SUBTYPE_DEFAULT = 0;
+    /** Function BSON type */
+    static readonly SUBTYPE_FUNCTION = 1;
+    /** Byte Array BSON type */
+    static readonly SUBTYPE_BYTE_ARRAY = 2;
+    /** Deprecated UUID BSON type @deprecated Please use SUBTYPE_UUID */
+    static readonly SUBTYPE_UUID_OLD = 3;
+    /** UUID BSON type */
+    static readonly SUBTYPE_UUID = 4;
+    /** MD5 BSON type */
+    static readonly SUBTYPE_MD5 = 5;
+    /** Encrypted BSON type */
+    static readonly SUBTYPE_ENCRYPTED = 6;
+    /** Column BSON type */
+    static readonly SUBTYPE_COLUMN = 7;
+    /** Sensitive BSON type */
+    static readonly SUBTYPE_SENSITIVE = 8;
+    /** Vector BSON type */
+    static readonly SUBTYPE_VECTOR = 9;
+    /** User BSON type */
+    static readonly SUBTYPE_USER_DEFINED = 128;
+    /** datatype of a Binary Vector (subtype: 9) */
+    static readonly VECTOR_TYPE: Readonly<{
+        readonly Int8: 3;
+        readonly Float32: 39;
+        readonly PackedBit: 16;
+    }>;
+    /**
+     * The bytes of the Binary value.
+     *
+     * The format of a Binary value in BSON is defined as:
+     * ```txt
+     * binary	::= int32 subtype (byte*)
+     * ```
+     *
+     * This `buffer` is the "(byte*)" segment.
+     *
+     * Unless the value is subtype 2, then deserialize will read the first 4 bytes as an int32 and set this to the remaining bytes.
+     *
+     * ```txt
+     * binary	::= int32 unsigned_byte(2) int32 (byte*)
+     * ```
+     *
+     * @see https://bsonspec.org/spec.html
+     */
+    buffer: Uint8Array;
+    /**
+     * The binary subtype.
+     *
+     * Current defined values are:
+     *
+     * - `unsigned_byte(0)` Generic binary subtype
+     * - `unsigned_byte(1)` Function
+     * - `unsigned_byte(2)` Binary (Deprecated)
+     * - `unsigned_byte(3)` UUID (Deprecated)
+     * - `unsigned_byte(4)` UUID
+     * - `unsigned_byte(5)` MD5
+     * - `unsigned_byte(6)` Encrypted BSON value
+     * - `unsigned_byte(7)` Compressed BSON column
+     * - `unsigned_byte(8)` Sensitive
+     * - `unsigned_byte(9)` Vector
+     * - `unsigned_byte(128)` - `unsigned_byte(255)` User defined
+     */
+    sub_type: number;
+    /**
+     * The Binary's `buffer` can be larger than the Binary's content.
+     * This property is used to determine where the content ends in the buffer.
+     */
+    position: number;
+    /**
+     * Create a new Binary instance.
+     * @param buffer - a buffer object containing the binary data.
+     * @param subType - the option binary type.
+     */
+    constructor(buffer?: BinarySequence, subType?: number);
+    /**
+     * Updates this binary with byte_value.
+     *
+     * @param byteValue - a single byte we wish to write.
+     */
+    put(byteValue: string | number | Uint8Array | number[]): void;
+    /**
+     * Writes a buffer to the binary.
+     *
+     * @param sequence - a string or buffer to be written to the Binary BSON object.
+     * @param offset - specify the binary of where to write the content.
+     */
+    write(sequence: BinarySequence, offset: number): void;
+    /**
+     * Returns a view of **length** bytes starting at **position**.
+     *
+     * @param position - read from the given position in the Binary.
+     * @param length - the number of bytes to read.
+     */
+    read(position: number, length: number): Uint8Array;
+    /** returns a view of the binary value as a Uint8Array */
+    value(): Uint8Array;
+    /** the length of the binary sequence */
+    length(): number;
+    toJSON(): string;
+    toString(encoding?: 'hex' | 'base64' | 'utf8' | 'utf-8'): string;
+    /* Excluded from this release type: toExtendedJSON */
+    toUUID(): UUID;
+    /** Creates an Binary instance from a hex digit string */
+    static createFromHexString(hex: string, subType?: number): Binary;
+    /** Creates an Binary instance from a base64 string */
+    static createFromBase64(base64: string, subType?: number): Binary;
+    /* Excluded from this release type: fromExtendedJSON */
+    inspect(depth?: number, options?: unknown, inspect?: InspectFn): string;
+    /**
+     * If this Binary represents a Int8 Vector (`binary.buffer[0] === Binary.VECTOR_TYPE.Int8`),
+     * returns a copy of the bytes in a new Int8Array.
+     *
+     * If the Binary is not a Vector, or the datatype is not Int8, an error is thrown.
+     */
+    toInt8Array(): Int8Array;
+    /**
+     * If this Binary represents a Float32 Vector (`binary.buffer[0] === Binary.VECTOR_TYPE.Float32`),
+     * returns a copy of the bytes in a new Float32Array.
+     *
+     * If the Binary is not a Vector, or the datatype is not Float32, an error is thrown.
+     */
+    toFloat32Array(): Float32Array;
+    /**
+     * If this Binary represents packed bit Vector (`binary.buffer[0] === Binary.VECTOR_TYPE.PackedBit`),
+     * returns a copy of the bytes that are packed bits.
+     *
+     * Use `toBits` to get the unpacked bits.
+     *
+     * If the Binary is not a Vector, or the datatype is not PackedBit, an error is thrown.
+     */
+    toPackedBits(): Uint8Array;
+    /**
+     * If this Binary represents a Packed bit Vector (`binary.buffer[0] === Binary.VECTOR_TYPE.PackedBit`),
+     * returns a copy of the bit unpacked into a new Int8Array.
+     *
+     * Use `toPackedBits` to get the bits still in packed form.
+     *
+     * If the Binary is not a Vector, or the datatype is not PackedBit, an error is thrown.
+     */
+    toBits(): Int8Array;
+    /**
+     * Constructs a Binary representing an Int8 Vector.
+     * @param array - The array to store as a view on the Binary class
+     */
+    static fromInt8Array(array: Int8Array): Binary;
+    /** Constructs a Binary representing an Float32 Vector. */
+    static fromFloat32Array(array: Float32Array): Binary;
+    /**
+     * Constructs a Binary representing a packed bit Vector.
+     *
+     * Use `fromBits` to pack an array of 1s and 0s.
+     */
+    static fromPackedBits(array: Uint8Array, padding?: number): Binary;
+    /**
+     * Constructs a Binary representing an Packed Bit Vector.
+     * @param array - The array of 1s and 0s to pack into the Binary instance
+     */
+    static fromBits(bits: ArrayLike<number>): Binary;
+}
+
+/** @public */
+export declare interface BinaryExtended {
+    $binary: {
+        subType: string;
+        base64: string;
+    };
+}
+
+/** @public */
+export declare interface BinaryExtendedLegacy {
+    $type: string;
+    $binary: string;
+}
+
+/** @public */
+export declare type BinarySequence = Uint8Array | number[];
+
+declare namespace BSON {
+    export {
+        setInternalBufferSize,
+        serialize,
+        serializeWithBufferAndIndex,
+        deserialize,
+        calculateObjectSize,
+        deserializeStream,
+        UUIDExtended,
+        BinaryExtended,
+        BinaryExtendedLegacy,
+        BinarySequence,
+        CodeExtended,
+        DBRefLike,
+        Decimal128Extended,
+        DoubleExtended,
+        EJSONOptions,
+        Int32Extended,
+        LongExtended,
+        MaxKeyExtended,
+        MinKeyExtended,
+        ObjectIdExtended,
+        ObjectIdLike,
+        BSONRegExpExtended,
+        BSONRegExpExtendedLegacy,
+        BSONSymbolExtended,
+        LongWithoutOverrides,
+        TimestampExtended,
+        TimestampOverrides,
+        LongWithoutOverridesClass,
+        SerializeOptions,
+        DeserializeOptions,
+        Code,
+        BSONSymbol,
+        DBRef,
+        Binary,
+        ObjectId,
+        UUID,
+        Long,
+        Timestamp,
+        Double,
+        Int32,
+        MinKey,
+        MaxKey,
+        BSONRegExp,
+        Decimal128,
+        BSONValue,
+        BSONError,
+        BSONVersionError,
+        BSONRuntimeError,
+        BSONOffsetError,
+        BSONType,
+        EJSON,
+        onDemand,
+        OnDemand,
+        Document,
+        CalculateObjectSizeOptions
+    }
+}
+export { BSON }
+
+/* Excluded from this release type: BSON_MAJOR_VERSION */
+
+/* Excluded from this release type: BSON_VERSION_SYMBOL */
+
+/**
+ * @public
+ * @experimental
+ */
+declare type BSONElement = [
+type: number,
+nameOffset: number,
+nameLength: number,
+offset: number,
+length: number
+];
+
+/**
+ * @public
+ * @category Error
+ *
+ * `BSONError` objects are thrown when BSON encounters an error.
+ *
+ * This is the parent class for all the other errors thrown by this library.
+ */
+export declare class BSONError extends Error {
+    /* Excluded from this release type: bsonError */
+    get name(): string;
+    constructor(message: string, options?: {
+        cause?: unknown;
+    });
+    /**
+     * @public
+     *
+     * All errors thrown from the BSON library inherit from `BSONError`.
+     * This method can assist with determining if an error originates from the BSON library
+     * even if it does not pass an `instanceof` check against this class' constructor.
+     *
+     * @param value - any javascript value that needs type checking
+     */
+    static isBSONError(value: unknown): value is BSONError;
+}
+
+/**
+ * @public
+ * @category Error
+ *
+ * @experimental
+ *
+ * An error generated when BSON bytes are invalid.
+ * Reports the offset the parser was able to reach before encountering the error.
+ */
+export declare class BSONOffsetError extends BSONError {
+    get name(): 'BSONOffsetError';
+    offset: number;
+    constructor(message: string, offset: number, options?: {
+        cause?: unknown;
+    });
+}
+
+/**
+ * A class representation of the BSON RegExp type.
+ * @public
+ * @category BSONType
+ */
+export declare class BSONRegExp extends BSONValue {
+    get _bsontype(): 'BSONRegExp';
+    pattern: string;
+    options: string;
+    /**
+     * @param pattern - The regular expression pattern to match
+     * @param options - The regular expression options
+     */
+    constructor(pattern: string, options?: string);
+    static parseOptions(options?: string): string;
+    /* Excluded from this release type: toExtendedJSON */
+    /* Excluded from this release type: fromExtendedJSON */
+    inspect(depth?: number, options?: unknown, inspect?: InspectFn): string;
+}
+
+/** @public */
+export declare interface BSONRegExpExtended {
+    $regularExpression: {
+        pattern: string;
+        options: string;
+    };
+}
+
+/** @public */
+export declare interface BSONRegExpExtendedLegacy {
+    $regex: string | BSONRegExp;
+    $options: string;
+}
+
+/**
+ * @public
+ * @category Error
+ *
+ * An error generated when BSON functions encounter an unexpected input
+ * or reaches an unexpected/invalid internal state
+ *
+ */
+export declare class BSONRuntimeError extends BSONError {
+    get name(): 'BSONRuntimeError';
+    constructor(message: string);
+}
+
+/**
+ * A class representation of the BSON Symbol type.
+ * @public
+ * @category BSONType
+ */
+export declare class BSONSymbol extends BSONValue {
+    get _bsontype(): 'BSONSymbol';
+    value: string;
+    /**
+     * @param value - the string representing the symbol.
+     */
+    constructor(value: string);
+    /** Access the wrapped string value. */
+    valueOf(): string;
+    toString(): string;
+    toJSON(): string;
+    /* Excluded from this release type: toExtendedJSON */
+    /* Excluded from this release type: fromExtendedJSON */
+    inspect(depth?: number, options?: unknown, inspect?: InspectFn): string;
+}
+
+/** @public */
+export declare interface BSONSymbolExtended {
+    $symbol: string;
+}
+
+/** @public */
+export declare const BSONType: Readonly<{
+    readonly double: 1;
+    readonly string: 2;
+    readonly object: 3;
+    readonly array: 4;
+    readonly binData: 5;
+    readonly undefined: 6;
+    readonly objectId: 7;
+    readonly bool: 8;
+    readonly date: 9;
+    readonly null: 10;
+    readonly regex: 11;
+    readonly dbPointer: 12;
+    readonly javascript: 13;
+    readonly symbol: 14;
+    readonly javascriptWithScope: 15;
+    readonly int: 16;
+    readonly timestamp: 17;
+    readonly long: 18;
+    readonly decimal: 19;
+    readonly minKey: -1;
+    readonly maxKey: 127;
+}>;
+
+/** @public */
+export declare type BSONType = (typeof BSONType)[keyof typeof BSONType];
+
+/** @public */
+export declare abstract class BSONValue {
+    /** @public */
+    abstract get _bsontype(): string;
+    /* Excluded from this release type: [BSON_VERSION_SYMBOL] */
+    /**
+     * @public
+     * Prints a human-readable string of BSON value information
+     * If invoked manually without node.js.inspect function, this will default to a modified JSON.stringify
+     */
+    abstract inspect(depth?: number, options?: unknown, inspect?: InspectFn): string;
+    /* Excluded from this release type: toExtendedJSON */
+}
+
+/**
+ * @public
+ * @category Error
+ */
+export declare class BSONVersionError extends BSONError {
+    get name(): 'BSONVersionError';
+    constructor();
+}
+
+/**
+ * @public
+ * @experimental
+ *
+ * A collection of functions that help work with data in a Uint8Array.
+ * ByteUtils is configured at load time to use Node.js or Web based APIs for the internal implementations.
+ */
+declare type ByteUtils = {
+    /** Transforms the input to an instance of Buffer if running on node, otherwise Uint8Array */
+    toLocalBufferType: (buffer: Uint8Array | ArrayBufferView | ArrayBuffer) => Uint8Array;
+    /** Create empty space of size */
+    allocate: (size: number) => Uint8Array;
+    /** Create empty space of size, use pooled memory when available */
+    allocateUnsafe: (size: number) => Uint8Array;
+    /** Check if two Uint8Arrays are deep equal */
+    equals: (a: Uint8Array, b: Uint8Array) => boolean;
+    /** Check if two Uint8Arrays are deep equal */
+    fromNumberArray: (array: number[]) => Uint8Array;
+    /** Create a Uint8Array from a base64 string */
+    fromBase64: (base64: string) => Uint8Array;
+    /** Create a base64 string from bytes */
+    toBase64: (buffer: Uint8Array) => string;
+    /** **Legacy** binary strings are an outdated method of data transfer. Do not add public API support for interpreting this format */
+    fromISO88591: (codePoints: string) => Uint8Array;
+    /** **Legacy** binary strings are an outdated method of data transfer. Do not add public API support for interpreting this format */
+    toISO88591: (buffer: Uint8Array) => string;
+    /** Create a Uint8Array from a hex string */
+    fromHex: (hex: string) => Uint8Array;
+    /** Create a lowercase hex string from bytes */
+    toHex: (buffer: Uint8Array) => string;
+    /** Create a string from utf8 code units, fatal=true will throw an error if UTF-8 bytes are invalid, fatal=false will insert replacement characters */
+    toUTF8: (buffer: Uint8Array, start: number, end: number, fatal: boolean) => string;
+    /** Get the utf8 code unit count from a string if it were to be transformed to utf8 */
+    utf8ByteLength: (input: string) => number;
+    /** Encode UTF8 bytes generated from `source` string into `destination` at byteOffset. Returns the number of bytes encoded. */
+    encodeUTF8Into: (destination: Uint8Array, source: string, byteOffset: number) => number;
+    /** Generate a Uint8Array filled with random bytes with byteLength */
+    randomBytes: (byteLength: number) => Uint8Array;
+    /** Interprets `buffer` as an array of 32-bit values and swaps the byte order in-place. */
+    swap32: (buffer: Uint8Array) => Uint8Array;
+};
+
+/* Excluded declaration from this release type: ByteUtils */
+
+/**
+ * Calculate the bson size for a passed in Javascript object.
+ *
+ * @param object - the Javascript object to calculate the BSON byte size for
+ * @returns size of BSON object in bytes
+ * @public
+ */
+export declare function calculateObjectSize(object: Document, options?: CalculateObjectSizeOptions): number;
+
+/** @public */
+export declare type CalculateObjectSizeOptions = Pick<SerializeOptions, 'serializeFunctions' | 'ignoreUndefined'>;
+
+/**
+ * A class representation of the BSON Code type.
+ * @public
+ * @category BSONType
+ */
+export declare class Code extends BSONValue {
+    get _bsontype(): 'Code';
+    code: string;
+    scope: Document | null;
+    /**
+     * @param code - a string or function.
+     * @param scope - an optional scope for the function.
+     */
+    constructor(code: string | Function, scope?: Document | null);
+    toJSON(): {
+        code: string;
+        scope?: Document;
+    };
+    /* Excluded from this release type: toExtendedJSON */
+    /* Excluded from this release type: fromExtendedJSON */
+    inspect(depth?: number, options?: unknown, inspect?: InspectFn): string;
+}
+
+/** @public */
+export declare interface CodeExtended {
+    $code: string;
+    $scope?: Document;
+}
+
+/**
+ * A class representation of the BSON DBRef type.
+ * @public
+ * @category BSONType
+ */
+export declare class DBRef extends BSONValue {
+    get _bsontype(): 'DBRef';
+    collection: string;
+    oid: ObjectId;
+    db?: string;
+    fields: Document;
+    /**
+     * @param collection - the collection name.
+     * @param oid - the reference ObjectId.
+     * @param db - optional db name, if omitted the reference is local to the current db.
+     */
+    constructor(collection: string, oid: ObjectId, db?: string, fields?: Document);
+    /* Excluded from this release type: namespace */
+    /* Excluded from this release type: namespace */
+    toJSON(): DBRefLike & Document;
+    /* Excluded from this release type: toExtendedJSON */
+    /* Excluded from this release type: fromExtendedJSON */
+    inspect(depth?: number, options?: unknown, inspect?: InspectFn): string;
+}
+
+/** @public */
+export declare interface DBRefLike {
+    $ref: string;
+    $id: ObjectId;
+    $db?: string;
+}
+
+/**
+ * A class representation of the BSON Decimal128 type.
+ * @public
+ * @category BSONType
+ */
+export declare class Decimal128 extends BSONValue {
+    get _bsontype(): 'Decimal128';
+    readonly bytes: Uint8Array;
+    /**
+     * @param bytes - a buffer containing the raw Decimal128 bytes in little endian order,
+     *                or a string representation as returned by .toString()
+     */
+    constructor(bytes: Uint8Array | string);
+    /**
+     * Create a Decimal128 instance from a string representation
+     *
+     * @param representation - a numeric string representation.
+     */
+    static fromString(representation: string): Decimal128;
+    /**
+     * Create a Decimal128 instance from a string representation, allowing for rounding to 34
+     * significant digits
+     *
+     * @example Example of a number that will be rounded
+     * ```ts
+     * > let d = Decimal128.fromString('37.499999999999999196428571428571375')
+     * Uncaught:
+     * BSONError: "37.499999999999999196428571428571375" is not a valid Decimal128 string - inexact rounding
+     * at invalidErr (/home/wajames/js-bson/lib/bson.cjs:1402:11)
+     * at Decimal128.fromStringInternal (/home/wajames/js-bson/lib/bson.cjs:1633:25)
+     * at Decimal128.fromString (/home/wajames/js-bson/lib/bson.cjs:1424:27)
+     *
+     * > d = Decimal128.fromStringWithRounding('37.499999999999999196428571428571375')
+     * new Decimal128("37.49999999999999919642857142857138")
+     * ```
+     * @param representation - a numeric string representation.
+     */
+    static fromStringWithRounding(representation: string): Decimal128;
+    private static _fromString;
+    /** Create a string representation of the raw Decimal128 value */
+    toString(): string;
+    toJSON(): Decimal128Extended;
+    /* Excluded from this release type: toExtendedJSON */
+    /* Excluded from this release type: fromExtendedJSON */
+    inspect(depth?: number, options?: unknown, inspect?: InspectFn): string;
+}
+
+/** @public */
+export declare interface Decimal128Extended {
+    $numberDecimal: string;
+}
+
+/**
+ * Deserialize data as BSON.
+ *
+ * @param buffer - the buffer containing the serialized set of BSON documents.
+ * @returns returns the deserialized Javascript Object.
+ * @public
+ */
+export declare function deserialize(buffer: Uint8Array, options?: DeserializeOptions): Document;
+
+/** @public */
+export declare interface DeserializeOptions {
+    /**
+     * when deserializing a Long return as a BigInt.
+     * @defaultValue `false`
+     */
+    useBigInt64?: boolean;
+    /**
+     * when deserializing a Long will fit it into a Number if it's smaller than 53 bits.
+     * @defaultValue `true`
+     */
+    promoteLongs?: boolean;
+    /**
+     * when deserializing a Binary will return it as a node.js Buffer instance.
+     * @defaultValue `false`
+     */
+    promoteBuffers?: boolean;
+    /**
+     * when deserializing will promote BSON values to their Node.js closest equivalent types.
+     * @defaultValue `true`
+     */
+    promoteValues?: boolean;
+    /**
+     * allow to specify if there what fields we wish to return as unserialized raw buffer.
+     * @defaultValue `null`
+     */
+    fieldsAsRaw?: Document;
+    /**
+     * return BSON regular expressions as BSONRegExp instances.
+     * @defaultValue `false`
+     */
+    bsonRegExp?: boolean;
+    /**
+     * allows the buffer to be larger than the parsed BSON object.
+     * @defaultValue `false`
+     */
+    allowObjectSmallerThanBufferSize?: boolean;
+    /**
+     * Offset into buffer to begin reading document from
+     * @defaultValue `0`
+     */
+    index?: number;
+    raw?: boolean;
+    /** Allows for opt-out utf-8 validation for all keys or
+     * specified keys. Must be all true or all false.
+     *
+     * @example
+     * ```js
+     * // disables validation on all keys
+     *  validation: { utf8: false }
+     *
+     * // enables validation only on specified keys a, b, and c
+     *  validation: { utf8: { a: true, b: true, c: true } }
+     *
+     *  // disables validation only on specified keys a, b
+     *  validation: { utf8: { a: false, b: false } }
+     * ```
+     */
+    validation?: {
+        utf8: boolean | Record<string, true> | Record<string, false>;
+    };
+}
+
+/**
+ * Deserialize stream data as BSON documents.
+ *
+ * @param data - the buffer containing the serialized set of BSON documents.
+ * @param startIndex - the start index in the data Buffer where the deserialization is to start.
+ * @param numberOfDocuments - number of documents to deserialize.
+ * @param documents - an array where to store the deserialized documents.
+ * @param docStartIndex - the index in the documents array from where to start inserting documents.
+ * @param options - additional options used for the deserialization.
+ * @returns next index in the buffer after deserialization **x** numbers of documents.
+ * @public
+ */
+export declare function deserializeStream(data: Uint8Array | ArrayBuffer, startIndex: number, numberOfDocuments: number, documents: Document[], docStartIndex: number, options: DeserializeOptions): number;
+
+/** @public */
+export declare interface Document {
+    [key: string]: any;
+}
+
+/**
+ * A class representation of the BSON Double type.
+ * @public
+ * @category BSONType
+ */
+export declare class Double extends BSONValue {
+    get _bsontype(): 'Double';
+    value: number;
+    /**
+     * Create a Double type
+     *
+     * @param value - the number we want to represent as a double.
+     */
+    constructor(value: number);
+    /**
+     * Attempt to create an double type from string.
+     *
+     * This method will throw a BSONError on any string input that is not representable as a IEEE-754 64-bit double.
+     * Notably, this method will also throw on the following string formats:
+     * - Strings in non-decimal and non-exponential formats (binary, hex, or octal digits)
+     * - Strings with characters other than numeric, floating point, or leading sign characters (Note: 'Infinity', '-Infinity', and 'NaN' input strings are still allowed)
+     * - Strings with leading and/or trailing whitespace
+     *
+     * Strings with leading zeros, however, are also allowed
+     *
+     * @param value - the string we want to represent as a double.
+     */
+    static fromString(value: string): Double;
+    /**
+     * Access the number value.
+     *
+     * @returns returns the wrapped double number.
+     */
+    valueOf(): number;
+    toJSON(): number;
+    toString(radix?: number): string;
+    /* Excluded from this release type: toExtendedJSON */
+    /* Excluded from this release type: fromExtendedJSON */
+    inspect(depth?: number, options?: unknown, inspect?: InspectFn): string;
+}
+
+/** @public */
+export declare interface DoubleExtended {
+    $numberDouble: string;
+}
+
+/** @public */
+export declare const EJSON: {
+    parse: typeof parse;
+    stringify: typeof stringify;
+    serialize: typeof EJSONserialize;
+    deserialize: typeof EJSONdeserialize;
+};
+
+/**
+ * Deserializes an Extended JSON object into a plain JavaScript object with native/BSON types
+ *
+ * @param ejson - The Extended JSON object to deserialize
+ * @param options - Optional settings passed to the parse method
+ */
+declare function EJSONdeserialize(ejson: Document, options?: EJSONOptions): any;
+
+/** @public */
+export declare type EJSONOptions = {
+    /**
+     * Output using the Extended JSON v1 spec
+     * @defaultValue `false`
+     */
+    legacy?: boolean;
+    /**
+     * Enable Extended JSON's `relaxed` mode, which attempts to return native JS types where possible, rather than BSON types
+     * @defaultValue `false` */
+    relaxed?: boolean;
+    /**
+     * Enable native bigint support
+     * @defaultValue `false`
+     */
+    useBigInt64?: boolean;
+};
+
+/**
+ * Serializes an object to an Extended JSON string, and reparse it as a JavaScript object.
+ *
+ * @param value - The object to serialize
+ * @param options - Optional settings passed to the `stringify` function
+ */
+declare function EJSONserialize(value: any, options?: EJSONOptions): Document;
+
+declare type InspectFn = (x: unknown, options?: unknown) => string;
+
+/**
+ * A class representation of a BSON Int32 type.
+ * @public
+ * @category BSONType
+ */
+export declare class Int32 extends BSONValue {
+    get _bsontype(): 'Int32';
+    value: number;
+    /**
+     * Create an Int32 type
+     *
+     * @param value - the number we want to represent as an int32.
+     */
+    constructor(value: number | string);
+    /**
+     * Attempt to create an Int32 type from string.
+     *
+     * This method will throw a BSONError on any string input that is not representable as an Int32.
+     * Notably, this method will also throw on the following string formats:
+     * - Strings in non-decimal formats (exponent notation, binary, hex, or octal digits)
+     * - Strings non-numeric and non-leading sign characters (ex: '2.0', '24,000')
+     * - Strings with leading and/or trailing whitespace
+     *
+     * Strings with leading zeros, however, are allowed.
+     *
+     * @param value - the string we want to represent as an int32.
+     */
+    static fromString(value: string): Int32;
+    /**
+     * Access the number value.
+     *
+     * @returns returns the wrapped int32 number.
+     */
+    valueOf(): number;
+    toString(radix?: number): string;
+    toJSON(): number;
+    /* Excluded from this release type: toExtendedJSON */
+    /* Excluded from this release type: fromExtendedJSON */
+    inspect(depth?: number, options?: unknown, inspect?: InspectFn): string;
+}
+
+/** @public */
+export declare interface Int32Extended {
+    $numberInt: string;
+}
+
+/**
+ * A class representing a 64-bit integer
+ * @public
+ * @category BSONType
+ * @remarks
+ * The internal representation of a long is the two given signed, 32-bit values.
+ * We use 32-bit pieces because these are the size of integers on which
+ * Javascript performs bit-operations.  For operations like addition and
+ * multiplication, we split each number into 16 bit pieces, which can easily be
+ * multiplied within Javascript's floating-point representation without overflow
+ * or change in sign.
+ * In the algorithms below, we frequently reduce the negative case to the
+ * positive case by negating the input(s) and then post-processing the result.
+ * Note that we must ALWAYS check specially whether those values are MIN_VALUE
+ * (-2^63) because -MIN_VALUE == MIN_VALUE (since 2^63 cannot be represented as
+ * a positive number, it overflows back into a negative).  Not handling this
+ * case would often result in infinite recursion.
+ * Common constant values ZERO, ONE, NEG_ONE, etc. are found as static properties on this class.
+ */
+export declare class Long extends BSONValue {
+    get _bsontype(): 'Long';
+    /** An indicator used to reliably determine if an object is a Long or not. */
+    get __isLong__(): boolean;
+    /**
+     * The high 32 bits as a signed value.
+     */
+    high: number;
+    /**
+     * The low 32 bits as a signed value.
+     */
+    low: number;
+    /**
+     * Whether unsigned or not.
+     */
+    unsigned: boolean;
+    /**
+     * Constructs a 64 bit two's-complement integer, given its low and high 32 bit values as *signed* integers.
+     *
+     * @param low - The low (signed) 32 bits of the long
+     * @param high - The high (signed) 32 bits of the long
+     * @param unsigned - Whether unsigned or not, defaults to signed
+     */
+    constructor(low: number, high?: number, unsigned?: boolean);
+    /**
+     * Constructs a 64 bit two's-complement integer, given a bigint representation.
+     *
+     * @param value - BigInt representation of the long value
+     * @param unsigned - Whether unsigned or not, defaults to signed
+     */
+    constructor(value: bigint, unsigned?: boolean);
+    /**
+     * Constructs a 64 bit two's-complement integer, given a string representation.
+     *
+     * @param value - String representation of the long value
+     * @param unsigned - Whether unsigned or not, defaults to signed
+     */
+    constructor(value: string, unsigned?: boolean);
+    static TWO_PWR_24: Long;
+    /** Maximum unsigned value. */
+    static MAX_UNSIGNED_VALUE: Long;
+    /** Signed zero */
+    static ZERO: Long;
+    /** Unsigned zero. */
+    static UZERO: Long;
+    /** Signed one. */
+    static ONE: Long;
+    /** Unsigned one. */
+    static UONE: Long;
+    /** Signed negative one. */
+    static NEG_ONE: Long;
+    /** Maximum signed value. */
+    static MAX_VALUE: Long;
+    /** Minimum signed value. */
+    static MIN_VALUE: Long;
+    /**
+     * Returns a Long representing the 64 bit integer that comes by concatenating the given low and high bits.
+     * Each is assumed to use 32 bits.
+     * @param lowBits - The low 32 bits
+     * @param highBits - The high 32 bits
+     * @param unsigned - Whether unsigned or not, defaults to signed
+     * @returns The corresponding Long value
+     */
+    static fromBits(lowBits: number, highBits: number, unsigned?: boolean): Long;
+    /**
+     * Returns a Long representing the given 32 bit integer value.
+     * @param value - The 32 bit integer in question
+     * @param unsigned - Whether unsigned or not, defaults to signed
+     * @returns The corresponding Long value
+     */
+    static fromInt(value: number, unsigned?: boolean): Long;
+    /**
+     * Returns a Long representing the given value, provided that it is a finite number. Otherwise, zero is returned.
+     * @param value - The number in question
+     * @param unsigned - Whether unsigned or not, defaults to signed
+     * @returns The corresponding Long value
+     */
+    static fromNumber(value: number, unsigned?: boolean): Long;
+    /**
+     * Returns a Long representing the given value, provided that it is a finite number. Otherwise, zero is returned.
+     * @param value - The number in question
+     * @param unsigned - Whether unsigned or not, defaults to signed
+     * @returns The corresponding Long value
+     */
+    static fromBigInt(value: bigint, unsigned?: boolean): Long;
+    /* Excluded from this release type: _fromString */
+    /**
+     * Returns a signed Long representation of the given string, written using radix 10.
+     * Will throw an error if the given text is not exactly representable as a Long.
+     * Throws an error if any of the following conditions are true:
+     * - the string contains invalid characters for the radix 10
+     * - the string contains whitespace
+     * - the value the string represents is too large or too small to be a Long
+     * Unlike Long.fromString, this method does not coerce '+/-Infinity' and 'NaN' to Long.Zero
+     * @param str - The textual representation of the Long
+     * @returns The corresponding Long value
+     */
+    static fromStringStrict(str: string): Long;
+    /**
+     * Returns a Long representation of the given string, written using the radix 10.
+     * Will throw an error if the given parameters are not exactly representable as a Long.
+     * Throws an error if any of the following conditions are true:
+     * - the string contains invalid characters for the given radix
+     * - the string contains whitespace
+     * - the value the string represents is too large or too small to be a Long
+     * Unlike Long.fromString, this method does not coerce '+/-Infinity' and 'NaN' to Long.Zero
+     * @param str - The textual representation of the Long
+     * @param unsigned - Whether unsigned or not, defaults to signed
+     * @returns The corresponding Long value
+     */
+    static fromStringStrict(str: string, unsigned?: boolean): Long;
+    /**
+     * Returns a signed Long representation of the given string, written using the specified radix.
+     * Will throw an error if the given parameters are not exactly representable as a Long.
+     * Throws an error if any of the following conditions are true:
+     * - the string contains invalid characters for the given radix
+     * - the string contains whitespace
+     * - the value the string represents is too large or too small to be a Long
+     * Unlike Long.fromString, this method does not coerce '+/-Infinity' and 'NaN' to Long.Zero
+     * @param str - The textual representation of the Long
+     * @param radix - The radix in which the text is written (2-36), defaults to 10
+     * @returns The corresponding Long value
+     */
+    static fromStringStrict(str: string, radix?: boolean): Long;
+    /**
+     * Returns a Long representation of the given string, written using the specified radix.
+     * Will throw an error if the given parameters are not exactly representable as a Long.
+     * Throws an error if any of the following conditions are true:
+     * - the string contains invalid characters for the given radix
+     * - the string contains whitespace
+     * - the value the string represents is too large or too small to be a Long
+     * Unlike Long.fromString, this method does not coerce '+/-Infinity' and 'NaN' to Long.Zero
+     * @param str - The textual representation of the Long
+     * @param unsigned - Whether unsigned or not, defaults to signed
+     * @param radix - The radix in which the text is written (2-36), defaults to 10
+     * @returns The corresponding Long value
+     */
+    static fromStringStrict(str: string, unsigned?: boolean, radix?: number): Long;
+    /**
+     * Returns a signed Long representation of the given string, written using radix 10.
+     *
+     * If the input string is empty, this function will throw a BSONError.
+     *
+     * If input string does not have valid signed 64-bit Long representation, this method will return a coerced value:
+     * - inputs that overflow 64-bit signed long will be coerced to Long.MAX_VALUE and Long.MIN_VALUE respectively
+     * - 'NaN' or '+/-Infinity' are coerced to Long.ZERO
+     * - other invalid characters sequences have variable behavior
+     *
+     * @param str - The textual representation of the Long
+     * @returns The corresponding Long value
+     */
+    static fromString(str: string): Long;
+    /**
+     * Returns a signed Long representation of the given string, written using the provided radix.
+     *
+     * If the input string is empty or a provided radix is not within (2-36), this function will throw a BSONError.
+     *
+     * If input parameters do not have valid signed 64-bit Long representation, this method will return a coerced value:
+     * - inputs that overflow 64-bit signed long will be coerced to Long.MAX_VALUE and Long.MIN_VALUE respectively
+     * - if the radix is less than 24, 'NaN' is coerced to Long.ZERO
+     * - if the radix is less than 35, '+/-Infinity' inputs are coerced to Long.ZERO
+     * - other invalid characters sequences have variable behavior
+     * @param str - The textual representation of the Long
+     * @param radix - The radix in which the text is written (2-36), defaults to 10
+     * @returns The corresponding Long value
+     */
+    static fromString(str: string, radix?: number): Long;
+    /**
+     * Returns a Long representation of the given string, written using radix 10.
+     *
+     * If the input string is empty, this function will throw a BSONError.
+     *
+     * If input parameters do not have a valid 64-bit Long representation, this method will return a coerced value:
+     * - inputs that overflow 64-bit long will be coerced to max or min (if signed) values
+     * - if the radix is less than 24, 'NaN' is coerced to Long.ZERO
+     * - if the radix is less than 35, '+/-Infinity' inputs are coerced to Long.ZERO
+     * - other invalid characters sequences have variable behavior
+     * @param str - The textual representation of the Long
+     * @param unsigned - Whether unsigned or not, defaults to signed
+     * @returns The corresponding Long value
+     */
+    static fromString(str: string, unsigned?: boolean): Long;
+    /**
+     * Returns a Long representation of the given string, written using the specified radix.
+     *
+     * If the input string is empty or a provided radix is not within (2-36), this function will throw a BSONError.
+     *
+     * If input parameters do not have a valid 64-bit Long representation, this method will return a coerced value:
+     * - inputs that overflow 64-bit long will be coerced to max or min (if signed) values
+     * - if the radix is less than 24, 'NaN' is coerced to Long.ZERO
+     * - if the radix is less than 35, '+/-Infinity' inputs are coerced to Long.ZERO
+     * - other invalid characters sequences have variable behavior
+     * @param str - The textual representation of the Long
+     * @param unsigned - Whether unsigned or not, defaults to signed
+     * @param radix - The radix in which the text is written (2-36), defaults to 10
+     * @returns The corresponding Long value
+     */
+    static fromString(str: string, unsigned?: boolean, radix?: number): Long;
+    /**
+     * Creates a Long from its byte representation.
+     * @param bytes - Byte representation
+     * @param unsigned - Whether unsigned or not, defaults to signed
+     * @param le - Whether little or big endian, defaults to big endian
+     * @returns The corresponding Long value
+     */
+    static fromBytes(bytes: number[], unsigned?: boolean, le?: boolean): Long;
+    /**
+     * Creates a Long from its little endian byte representation.
+     * @param bytes - Little endian byte representation
+     * @param unsigned - Whether unsigned or not, defaults to signed
+     * @returns The corresponding Long value
+     */
+    static fromBytesLE(bytes: number[], unsigned?: boolean): Long;
+    /**
+     * Creates a Long from its big endian byte representation.
+     * @param bytes - Big endian byte representation
+     * @param unsigned - Whether unsigned or not, defaults to signed
+     * @returns The corresponding Long value
+     */
+    static fromBytesBE(bytes: number[], unsigned?: boolean): Long;
+    /**
+     * Tests if the specified object is a Long.
+     */
+    static isLong(value: unknown): value is Long;
+    /**
+     * Converts the specified value to a Long.
+     * @param unsigned - Whether unsigned or not, defaults to signed
+     */
+    static fromValue(val: number | string | {
+        low: number;
+        high: number;
+        unsigned?: boolean;
+    }, unsigned?: boolean): Long;
+    /** Returns the sum of this and the specified Long. */
+    add(addend: string | number | Long | Timestamp): Long;
+    /**
+     * Returns the sum of this and the specified Long.
+     * @returns Sum
+     */
+    and(other: string | number | Long | Timestamp): Long;
+    /**
+     * Compares this Long's value with the specified's.
+     * @returns 0 if they are the same, 1 if the this is greater and -1 if the given one is greater
+     */
+    compare(other: string | number | Long | Timestamp): 0 | 1 | -1;
+    /** This is an alias of {@link Long.compare} */
+    comp(other: string | number | Long | Timestamp): 0 | 1 | -1;
+    /**
+     * Returns this Long divided by the specified. The result is signed if this Long is signed or unsigned if this Long is unsigned.
+     * @returns Quotient
+     */
+    divide(divisor: string | number | Long | Timestamp): Long;
+    /**This is an alias of {@link Long.divide} */
+    div(divisor: string | number | Long | Timestamp): Long;
+    /**
+     * Tests if this Long's value equals the specified's.
+     * @param other - Other value
+     */
+    equals(other: string | number | Long | Timestamp): boolean;
+    /** This is an alias of {@link Long.equals} */
+    eq(other: string | number | Long | Timestamp): boolean;
+    /** Gets the high 32 bits as a signed integer. */
+    getHighBits(): number;
+    /** Gets the high 32 bits as an unsigned integer. */
+    getHighBitsUnsigned(): number;
+    /** Gets the low 32 bits as a signed integer. */
+    getLowBits(): number;
+    /** Gets the low 32 bits as an unsigned integer. */
+    getLowBitsUnsigned(): number;
+    /** Gets the number of bits needed to represent the absolute value of this Long. */
+    getNumBitsAbs(): number;
+    /** Tests if this Long's value is greater than the specified's. */
+    greaterThan(other: string | number | Long | Timestamp): boolean;
+    /** This is an alias of {@link Long.greaterThan} */
+    gt(other: string | number | Long | Timestamp): boolean;
+    /** Tests if this Long's value is greater than or equal the specified's. */
+    greaterThanOrEqual(other: string | number | Long | Timestamp): boolean;
+    /** This is an alias of {@link Long.greaterThanOrEqual} */
+    gte(other: string | number | Long | Timestamp): boolean;
+    /** This is an alias of {@link Long.greaterThanOrEqual} */
+    ge(other: string | number | Long | Timestamp): boolean;
+    /** Tests if this Long's value is even. */
+    isEven(): boolean;
+    /** Tests if this Long's value is negative. */
+    isNegative(): boolean;
+    /** Tests if this Long's value is odd. */
+    isOdd(): boolean;
+    /** Tests if this Long's value is positive. */
+    isPositive(): boolean;
+    /** Tests if this Long's value equals zero. */
+    isZero(): boolean;
+    /** Tests if this Long's value is less than the specified's. */
+    lessThan(other: string | number | Long | Timestamp): boolean;
+    /** This is an alias of {@link Long#lessThan}. */
+    lt(other: string | number | Long | Timestamp): boolean;
+    /** Tests if this Long's value is less than or equal the specified's. */
+    lessThanOrEqual(other: string | number | Long | Timestamp): boolean;
+    /** This is an alias of {@link Long.lessThanOrEqual} */
+    lte(other: string | number | Long | Timestamp): boolean;
+    /** Returns this Long modulo the specified. */
+    modulo(divisor: string | number | Long | Timestamp): Long;
+    /** This is an alias of {@link Long.modulo} */
+    mod(divisor: string | number | Long | Timestamp): Long;
+    /** This is an alias of {@link Long.modulo} */
+    rem(divisor: string | number | Long | Timestamp): Long;
+    /**
+     * Returns the product of this and the specified Long.
+     * @param multiplier - Multiplier
+     * @returns Product
+     */
+    multiply(multiplier: string | number | Long | Timestamp): Long;
+    /** This is an alias of {@link Long.multiply} */
+    mul(multiplier: string | number | Long | Timestamp): Long;
+    /** Returns the Negation of this Long's value. */
+    negate(): Long;
+    /** This is an alias of {@link Long.negate} */
+    neg(): Long;
+    /** Returns the bitwise NOT of this Long. */
+    not(): Long;
+    /** Tests if this Long's value differs from the specified's. */
+    notEquals(other: string | number | Long | Timestamp): boolean;
+    /** This is an alias of {@link Long.notEquals} */
+    neq(other: string | number | Long | Timestamp): boolean;
+    /** This is an alias of {@link Long.notEquals} */
+    ne(other: string | number | Long | Timestamp): boolean;
+    /**
+     * Returns the bitwise OR of this Long and the specified.
+     */
+    or(other: number | string | Long): Long;
+    /**
+     * Returns this Long with bits shifted to the left by the given amount.
+     * @param numBits - Number of bits
+     * @returns Shifted Long
+     */
+    shiftLeft(numBits: number | Long): Long;
+    /** This is an alias of {@link Long.shiftLeft} */
+    shl(numBits: number | Long): Long;
+    /**
+     * Returns this Long with bits arithmetically shifted to the right by the given amount.
+     * @param numBits - Number of bits
+     * @returns Shifted Long
+     */
+    shiftRight(numBits: number | Long): Long;
+    /** This is an alias of {@link Long.shiftRight} */
+    shr(numBits: number | Long): Long;
+    /**
+     * Returns this Long with bits logically shifted to the right by the given amount.
+     * @param numBits - Number of bits
+     * @returns Shifted Long
+     */
+    shiftRightUnsigned(numBits: Long | number): Long;
+    /** This is an alias of {@link Long.shiftRightUnsigned} */
+    shr_u(numBits: number | Long): Long;
+    /** This is an alias of {@link Long.shiftRightUnsigned} */
+    shru(numBits: number | Long): Long;
+    /**
+     * Returns the difference of this and the specified Long.
+     * @param subtrahend - Subtrahend
+     * @returns Difference
+     */
+    subtract(subtrahend: string | number | Long | Timestamp): Long;
+    /** This is an alias of {@link Long.subtract} */
+    sub(subtrahend: string | number | Long | Timestamp): Long;
+    /** Converts the Long to a 32 bit integer, assuming it is a 32 bit integer. */
+    toInt(): number;
+    /** Converts the Long to a the nearest floating-point representation of this value (double, 53 bit mantissa). */
+    toNumber(): number;
+    /** Converts the Long to a BigInt (arbitrary precision). */
+    toBigInt(): bigint;
+    /**
+     * Converts this Long to its byte representation.
+     * @param le - Whether little or big endian, defaults to big endian
+     * @returns Byte representation
+     */
+    toBytes(le?: boolean): number[];
+    /**
+     * Converts this Long to its little endian byte representation.
+     * @returns Little endian byte representation
+     */
+    toBytesLE(): number[];
+    /**
+     * Converts this Long to its big endian byte representation.
+     * @returns Big endian byte representation
+     */
+    toBytesBE(): number[];
+    /**
+     * Converts this Long to signed.
+     */
+    toSigned(): Long;
+    /**
+     * Converts the Long to a string written in the specified radix.
+     * @param radix - Radix (2-36), defaults to 10
+     * @throws RangeError If `radix` is out of range
+     */
+    toString(radix?: number): string;
+    /** Converts this Long to unsigned. */
+    toUnsigned(): Long;
+    /** Returns the bitwise XOR of this Long and the given one. */
+    xor(other: Long | number | string): Long;
+    /** This is an alias of {@link Long.isZero} */
+    eqz(): boolean;
+    /** This is an alias of {@link Long.lessThanOrEqual} */
+    le(other: string | number | Long | Timestamp): boolean;
+    toExtendedJSON(options?: EJSONOptions): number | LongExtended;
+    static fromExtendedJSON(doc: {
+        $numberLong: string;
+    }, options?: EJSONOptions): number | Long | bigint;
+    inspect(depth?: number, options?: unknown, inspect?: InspectFn): string;
+}
+
+/** @public */
+export declare interface LongExtended {
+    $numberLong: string;
+}
+
+/** @public */
+export declare type LongWithoutOverrides = new (low: unknown, high?: number | boolean, unsigned?: boolean) => {
+    [P in Exclude<keyof Long, TimestampOverrides>]: Long[P];
+};
+
+/** @public */
+export declare const LongWithoutOverridesClass: LongWithoutOverrides;
+
+/**
+ * A class representation of the BSON MaxKey type.
+ * @public
+ * @category BSONType
+ */
+export declare class MaxKey extends BSONValue {
+    get _bsontype(): 'MaxKey';
+    /* Excluded from this release type: toExtendedJSON */
+    /* Excluded from this release type: fromExtendedJSON */
+    inspect(): string;
+}
+
+/** @public */
+export declare interface MaxKeyExtended {
+    $maxKey: 1;
+}
+
+/**
+ * A class representation of the BSON MinKey type.
+ * @public
+ * @category BSONType
+ */
+export declare class MinKey extends BSONValue {
+    get _bsontype(): 'MinKey';
+    /* Excluded from this release type: toExtendedJSON */
+    /* Excluded from this release type: fromExtendedJSON */
+    inspect(): string;
+}
+
+/** @public */
+export declare interface MinKeyExtended {
+    $minKey: 1;
+}
+
+/**
+ * @experimental
+ * @public
+ *
+ * A collection of functions that get or set various numeric types and bit widths from a Uint8Array.
+ */
+declare type NumberUtils = {
+    /** Is true if the current system is big endian. */
+    isBigEndian: boolean;
+    /**
+     * Parses a signed int32 at offset. Throws a `RangeError` if value is negative.
+     */
+    getNonnegativeInt32LE: (source: Uint8Array, offset: number) => number;
+    getInt32LE: (source: Uint8Array, offset: number) => number;
+    getUint32LE: (source: Uint8Array, offset: number) => number;
+    getUint32BE: (source: Uint8Array, offset: number) => number;
+    getBigInt64LE: (source: Uint8Array, offset: number) => bigint;
+    getFloat64LE: (source: Uint8Array, offset: number) => number;
+    setInt32BE: (destination: Uint8Array, offset: number, value: number) => 4;
+    setInt32LE: (destination: Uint8Array, offset: number, value: number) => 4;
+    setBigInt64LE: (destination: Uint8Array, offset: number, value: bigint) => 8;
+    setFloat64LE: (destination: Uint8Array, offset: number, value: number) => 8;
+};
+
+/**
+ * Number parsing and serializing utilities.
+ *
+ * @experimental
+ * @public
+ */
+declare const NumberUtils: NumberUtils;
+
+/**
+ * A class representation of the BSON ObjectId type.
+ * @public
+ * @category BSONType
+ */
+export declare class ObjectId extends BSONValue {
+    get _bsontype(): 'ObjectId';
+    /* Excluded from this release type: index */
+    static cacheHexString: boolean;
+    /* Excluded from this release type: buffer */
+    /**
+     * Create ObjectId from a number.
+     *
+     * @param inputId - A number.
+     * @deprecated Instead, use `static createFromTime()` to set a numeric value for the new ObjectId.
+     */
+    constructor(inputId: number);
+    /**
+     * Create ObjectId from a 24 character hex string.
+     *
+     * @param inputId - A 24 character hex string.
+     */
+    constructor(inputId: string);
+    /**
+     * Create ObjectId from the BSON ObjectId type.
+     *
+     * @param inputId - The BSON ObjectId type.
+     */
+    constructor(inputId: ObjectId);
+    /**
+     * Create ObjectId from the object type that has the toHexString method.
+     *
+     * @param inputId - The ObjectIdLike type.
+     */
+    constructor(inputId: ObjectIdLike);
+    /**
+     * Create ObjectId from a 12 byte binary Buffer.
+     *
+     * @param inputId - A 12 byte binary Buffer.
+     */
+    constructor(inputId: Uint8Array);
+    /** To generate a new ObjectId, use ObjectId() with no argument. */
+    constructor();
+    /**
+     * Implementation overload.
+     *
+     * @param inputId - All input types that are used in the constructor implementation.
+     */
+    constructor(inputId?: string | number | ObjectId | ObjectIdLike | Uint8Array);
+    /**
+     * The ObjectId bytes
+     * @readonly
+     */
+    get id(): Uint8Array;
+    set id(value: Uint8Array);
+    /* Excluded from this release type: validateHexString */
+    /** Returns the ObjectId id as a 24 lowercase character hex string representation */
+    toHexString(): string;
+    /* Excluded from this release type: getInc */
+    /**
+     * Generate a 12 byte id buffer used in ObjectId's
+     *
+     * @param time - pass in a second based timestamp.
+     */
+    static generate(time?: number): Uint8Array;
+    /**
+     * Converts the id into a 24 character hex string for printing, unless encoding is provided.
+     * @param encoding - hex or base64
+     */
+    toString(encoding?: 'hex' | 'base64'): string;
+    /** Converts to its JSON the 24 character hex string representation. */
+    toJSON(): string;
+    /* Excluded from this release type: is */
+    /**
+     * Compares the equality of this ObjectId with `otherID`.
+     *
+     * @param otherId - ObjectId instance to compare against.
+     */
+    equals(otherId: string | ObjectId | ObjectIdLike | undefined | null): boolean;
+    /** Returns the generation date (accurate up to the second) that this ID was generated. */
+    getTimestamp(): Date;
+    /* Excluded from this release type: createPk */
+    /* Excluded from this release type: serializeInto */
+    /**
+     * Creates an ObjectId from a second based number, with the rest of the ObjectId zeroed out. Used for comparisons or sorting the ObjectId.
+     *
+     * @param time - an integer number representing a number of seconds.
+     */
+    static createFromTime(time: number): ObjectId;
+    /**
+     * Creates an ObjectId from a hex string representation of an ObjectId.
+     *
+     * @param hexString - create a ObjectId from a passed in 24 character hexstring.
+     */
+    static createFromHexString(hexString: string): ObjectId;
+    /** Creates an ObjectId instance from a base64 string */
+    static createFromBase64(base64: string): ObjectId;
+    /**
+     * Checks if a value can be used to create a valid bson ObjectId
+     * @param id - any JS value
+     */
+    static isValid(id: string | number | ObjectId | ObjectIdLike | Uint8Array): boolean;
+    /* Excluded from this release type: toExtendedJSON */
+    /* Excluded from this release type: fromExtendedJSON */
+    /* Excluded from this release type: isCached */
+    /**
+     * Converts to a string representation of this Id.
+     *
+     * @returns return the 24 character hex string representation.
+     */
+    inspect(depth?: number, options?: unknown, inspect?: InspectFn): string;
+}
+
+/** @public */
+export declare interface ObjectIdExtended {
+    $oid: string;
+}
+
+/** @public */
+export declare interface ObjectIdLike {
+    id: string | Uint8Array;
+    __id?: string;
+    toHexString(): string;
+}
+
+/**
+ * @experimental
+ * @public
+ *
+ * A new set of BSON APIs that are currently experimental and not intended for production use.
+ */
+export declare type OnDemand = {
+    parseToElements: (this: void, bytes: Uint8Array, startOffset?: number) => Iterable<BSONElement>;
+    BSONElement: BSONElement;
+    ByteUtils: ByteUtils;
+    NumberUtils: NumberUtils;
+};
+
+/**
+ * @experimental
+ * @public
+ */
+export declare const onDemand: OnDemand;
+
+/**
+ * Parse an Extended JSON string, constructing the JavaScript value or object described by that
+ * string.
+ *
+ * @example
+ * ```js
+ * const { EJSON } = require('bson');
+ * const text = '{ "int32": { "$numberInt": "10" } }';
+ *
+ * // prints { int32: { [String: '10'] _bsontype: 'Int32', value: '10' } }
+ * console.log(EJSON.parse(text, { relaxed: false }));
+ *
+ * // prints { int32: 10 }
+ * console.log(EJSON.parse(text));
+ * ```
+ */
+declare function parse(text: string, options?: EJSONOptions): any;
+
+/**
+ * Serialize a Javascript object.
+ *
+ * @param object - the Javascript object to serialize.
+ * @returns Buffer object containing the serialized object.
+ * @public
+ */
+export declare function serialize(object: Document, options?: SerializeOptions): Uint8Array;
+
+/** @public */
+export declare interface SerializeOptions {
+    /**
+     * the serializer will check if keys are valid.
+     * @defaultValue `false`
+     */
+    checkKeys?: boolean;
+    /**
+     * serialize the javascript functions
+     * @defaultValue `false`
+     */
+    serializeFunctions?: boolean;
+    /**
+     * serialize will not emit undefined fields
+     * note that the driver sets this to `false`
+     * @defaultValue `true`
+     */
+    ignoreUndefined?: boolean;
+    /* Excluded from this release type: minInternalBufferSize */
+    /**
+     * the index in the buffer where we wish to start serializing into
+     * @defaultValue `0`
+     */
+    index?: number;
+}
+
+/**
+ * Serialize a Javascript object using a predefined Buffer and index into the buffer,
+ * useful when pre-allocating the space for serialization.
+ *
+ * @param object - the Javascript object to serialize.
+ * @param finalBuffer - the Buffer you pre-allocated to store the serialized BSON object.
+ * @returns the index pointing to the last written byte in the buffer.
+ * @public
+ */
+export declare function serializeWithBufferAndIndex(object: Document, finalBuffer: Uint8Array, options?: SerializeOptions): number;
+
+/**
+ * Sets the size of the internal serialization buffer.
+ *
+ * @param size - The desired size for the internal serialization buffer in bytes
+ * @public
+ */
+export declare function setInternalBufferSize(size: number): void;
+
+/**
+ * Converts a BSON document to an Extended JSON string, optionally replacing values if a replacer
+ * function is specified or optionally including only the specified properties if a replacer array
+ * is specified.
+ *
+ * @param value - The value to convert to extended JSON
+ * @param replacer - A function that alters the behavior of the stringification process, or an array of String and Number objects that serve as a whitelist for selecting/filtering the properties of the value object to be included in the JSON string. If this value is null or not provided, all properties of the object are included in the resulting JSON string
+ * @param space - A String or Number object that's used to insert white space into the output JSON string for readability purposes.
+ * @param options - Optional settings
+ *
+ * @example
+ * ```js
+ * const { EJSON } = require('bson');
+ * const Int32 = require('mongodb').Int32;
+ * const doc = { int32: new Int32(10) };
+ *
+ * // prints '{"int32":{"$numberInt":"10"}}'
+ * console.log(EJSON.stringify(doc, { relaxed: false }));
+ *
+ * // prints '{"int32":10}'
+ * console.log(EJSON.stringify(doc));
+ * ```
+ */
+declare function stringify(value: any, replacer?: (number | string)[] | ((this: any, key: string, value: any) => any) | EJSONOptions, space?: string | number, options?: EJSONOptions): string;
+
+/**
+ * @public
+ * @category BSONType
+ *
+ * A special type for _internal_ MongoDB use and is **not** associated with the regular Date type.
+ */
+export declare class Timestamp extends LongWithoutOverridesClass {
+    get _bsontype(): 'Timestamp';
+    static readonly MAX_VALUE: Long;
+    /**
+     * An incrementing ordinal for operations within a given second.
+     */
+    get i(): number;
+    /**
+     * A `time_t` value measuring seconds since the Unix epoch
+     */
+    get t(): number;
+    /**
+     * @param int - A 64-bit bigint representing the Timestamp.
+     */
+    constructor(int: bigint);
+    /**
+     * @param long - A 64-bit Long representing the Timestamp.
+     */
+    constructor(long: Long);
+    /**
+     * @param value - A pair of two values indicating timestamp and increment.
+     */
+    constructor(value: {
+        t: number;
+        i: number;
+    });
+    toJSON(): {
+        $timestamp: string;
+    };
+    /** Returns a Timestamp represented by the given (32-bit) integer value. */
+    static fromInt(value: number): Timestamp;
+    /** Returns a Timestamp representing the given number value, provided that it is a finite number. Otherwise, zero is returned. */
+    static fromNumber(value: number): Timestamp;
+    /**
+     * Returns a Timestamp for the given high and low bits. Each is assumed to use 32 bits.
+     *
+     * @param lowBits - the low 32-bits.
+     * @param highBits - the high 32-bits.
+     */
+    static fromBits(lowBits: number, highBits: number): Timestamp;
+    /**
+     * Returns a Timestamp from the given string, optionally using the given radix.
+     *
+     * @param str - the textual representation of the Timestamp.
+     * @param optRadix - the radix in which the text is written.
+     */
+    static fromString(str: string, optRadix: number): Timestamp;
+    /* Excluded from this release type: toExtendedJSON */
+    /* Excluded from this release type: fromExtendedJSON */
+    inspect(depth?: number, options?: unknown, inspect?: InspectFn): string;
+}
+
+/** @public */
+export declare interface TimestampExtended {
+    $timestamp: {
+        t: number;
+        i: number;
+    };
+}
+
+/** @public */
+export declare type TimestampOverrides = '_bsontype' | 'toExtendedJSON' | 'fromExtendedJSON' | 'inspect';
+
+/**
+ * A class representation of the BSON UUID type.
+ * @public
+ */
+export declare class UUID extends Binary {
+    /**
+     * Create a UUID type
+     *
+     * When the argument to the constructor is omitted a random v4 UUID will be generated.
+     *
+     * @param input - Can be a 32 or 36 character hex string (dashes excluded/included) or a 16 byte binary Buffer.
+     */
+    constructor(input?: string | Uint8Array | UUID);
+    /**
+     * The UUID bytes
+     * @readonly
+     */
+    get id(): Uint8Array;
+    set id(value: Uint8Array);
+    /**
+     * Returns the UUID id as a 32 or 36 character hex string representation, excluding/including dashes (defaults to 36 character dash separated)
+     * @param includeDashes - should the string exclude dash-separators.
+     */
+    toHexString(includeDashes?: boolean): string;
+    /**
+     * Converts the id into a 36 character (dashes included) hex string, unless a encoding is specified.
+     */
+    toString(encoding?: 'hex' | 'base64'): string;
+    /**
+     * Converts the id into its JSON string representation.
+     * A 36 character (dashes included) hex string in the format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
+     */
+    toJSON(): string;
+    /**
+     * Compares the equality of this UUID with `otherID`.
+     *
+     * @param otherId - UUID instance to compare against.
+     */
+    equals(otherId: string | Uint8Array | UUID): boolean;
+    /**
+     * Creates a Binary instance from the current UUID.
+     */
+    toBinary(): Binary;
+    /**
+     * Generates a populated buffer containing a v4 uuid
+     */
+    static generate(): Uint8Array;
+    /**
+     * Checks if a value is a valid bson UUID
+     * @param input - UUID, string or Buffer to validate.
+     */
+    static isValid(input: string | Uint8Array | UUID | Binary): boolean;
+    /**
+     * Creates an UUID from a hex string representation of an UUID.
+     * @param hexString - 32 or 36 character hex string (dashes excluded/included).
+     */
+    static createFromHexString(hexString: string): UUID;
+    /** Creates an UUID from a base64 string representation of an UUID. */
+    static createFromBase64(base64: string): UUID;
+    /* Excluded from this release type: bytesFromString */
+    /* Excluded from this release type: isValidUUIDString */
+    /**
+     * Converts to a string representation of this Id.
+     *
+     * @returns return the 36 character hex string representation.
+     *
+     */
+    inspect(depth?: number, options?: unknown, inspect?: InspectFn): string;
+}
+
+/** @public */
+export declare type UUIDExtended = {
+    $uuid: string;
+};
+
+export { }
diff --git a/backend/node_modules/bson/etc/prepare.js b/backend/node_modules/bson/etc/prepare.js
new file mode 100644
index 0000000..91e6f3a
--- /dev/null
+++ b/backend/node_modules/bson/etc/prepare.js
@@ -0,0 +1,19 @@
+#! /usr/bin/env node
+var cp = require('child_process');
+var fs = require('fs');
+
+var nodeMajorVersion = +process.version.match(/^v(\d+)\.\d+/)[1];
+
+if (fs.existsSync('src') && nodeMajorVersion >= 10) {
+  cp.spawnSync('npm', ['run', 'build'], { stdio: 'inherit', shell: true });
+} else {
+  if (!fs.existsSync('lib')) {
+    console.warn('BSON: No compiled javascript present, the library is not installed correctly.');
+    if (nodeMajorVersion < 10) {
+      console.warn(
+        'This library can only be compiled in nodejs version 10 or later, currently running: ' +
+          nodeMajorVersion
+      );
+    }
+  }
+}
diff --git a/backend/node_modules/bson/lib/bson.bundle.js b/backend/node_modules/bson/lib/bson.bundle.js
new file mode 100644
index 0000000..79e6343
--- /dev/null
+++ b/backend/node_modules/bson/lib/bson.bundle.js
@@ -0,0 +1,4598 @@
+var BSON = (function (exports) {
+'use strict';
+
+const TypedArrayPrototypeGetSymbolToStringTag = (() => {
+    const g = Object.getOwnPropertyDescriptor(Object.getPrototypeOf(Uint8Array.prototype), Symbol.toStringTag).get;
+    return (value) => g.call(value);
+})();
+function isUint8Array(value) {
+    return TypedArrayPrototypeGetSymbolToStringTag(value) === 'Uint8Array';
+}
+function isAnyArrayBuffer(value) {
+    return (typeof value === 'object' &&
+        value != null &&
+        Symbol.toStringTag in value &&
+        (value[Symbol.toStringTag] === 'ArrayBuffer' ||
+            value[Symbol.toStringTag] === 'SharedArrayBuffer'));
+}
+function isRegExp(regexp) {
+    return regexp instanceof RegExp || Object.prototype.toString.call(regexp) === '[object RegExp]';
+}
+function isMap(value) {
+    return (typeof value === 'object' &&
+        value != null &&
+        Symbol.toStringTag in value &&
+        value[Symbol.toStringTag] === 'Map');
+}
+function isDate(date) {
+    return date instanceof Date || Object.prototype.toString.call(date) === '[object Date]';
+}
+function defaultInspect(x, _options) {
+    return JSON.stringify(x, (k, v) => {
+        if (typeof v === 'bigint') {
+            return { $numberLong: `${v}` };
+        }
+        else if (isMap(v)) {
+            return Object.fromEntries(v);
+        }
+        return v;
+    });
+}
+function getStylizeFunction(options) {
+    const stylizeExists = options != null &&
+        typeof options === 'object' &&
+        'stylize' in options &&
+        typeof options.stylize === 'function';
+    if (stylizeExists) {
+        return options.stylize;
+    }
+}
+
+const BSON_MAJOR_VERSION = 6;
+const BSON_VERSION_SYMBOL = Symbol.for('@@mdb.bson.version');
+const BSON_INT32_MAX = 0x7fffffff;
+const BSON_INT32_MIN = -0x80000000;
+const BSON_INT64_MAX = Math.pow(2, 63) - 1;
+const BSON_INT64_MIN = -Math.pow(2, 63);
+const JS_INT_MAX = Math.pow(2, 53);
+const JS_INT_MIN = -Math.pow(2, 53);
+const BSON_DATA_NUMBER = 1;
+const BSON_DATA_STRING = 2;
+const BSON_DATA_OBJECT = 3;
+const BSON_DATA_ARRAY = 4;
+const BSON_DATA_BINARY = 5;
+const BSON_DATA_UNDEFINED = 6;
+const BSON_DATA_OID = 7;
+const BSON_DATA_BOOLEAN = 8;
+const BSON_DATA_DATE = 9;
+const BSON_DATA_NULL = 10;
+const BSON_DATA_REGEXP = 11;
+const BSON_DATA_DBPOINTER = 12;
+const BSON_DATA_CODE = 13;
+const BSON_DATA_SYMBOL = 14;
+const BSON_DATA_CODE_W_SCOPE = 15;
+const BSON_DATA_INT = 16;
+const BSON_DATA_TIMESTAMP = 17;
+const BSON_DATA_LONG = 18;
+const BSON_DATA_DECIMAL128 = 19;
+const BSON_DATA_MIN_KEY = 0xff;
+const BSON_DATA_MAX_KEY = 0x7f;
+const BSON_BINARY_SUBTYPE_DEFAULT = 0;
+const BSON_BINARY_SUBTYPE_UUID_NEW = 4;
+const BSONType = Object.freeze({
+    double: 1,
+    string: 2,
+    object: 3,
+    array: 4,
+    binData: 5,
+    undefined: 6,
+    objectId: 7,
+    bool: 8,
+    date: 9,
+    null: 10,
+    regex: 11,
+    dbPointer: 12,
+    javascript: 13,
+    symbol: 14,
+    javascriptWithScope: 15,
+    int: 16,
+    timestamp: 17,
+    long: 18,
+    decimal: 19,
+    minKey: -1,
+    maxKey: 127
+});
+
+class BSONError extends Error {
+    get bsonError() {
+        return true;
+    }
+    get name() {
+        return 'BSONError';
+    }
+    constructor(message, options) {
+        super(message, options);
+    }
+    static isBSONError(value) {
+        return (value != null &&
+            typeof value === 'object' &&
+            'bsonError' in value &&
+            value.bsonError === true &&
+            'name' in value &&
+            'message' in value &&
+            'stack' in value);
+    }
+}
+class BSONVersionError extends BSONError {
+    get name() {
+        return 'BSONVersionError';
+    }
+    constructor() {
+        super(`Unsupported BSON version, bson types must be from bson ${BSON_MAJOR_VERSION}.x.x`);
+    }
+}
+class BSONRuntimeError extends BSONError {
+    get name() {
+        return 'BSONRuntimeError';
+    }
+    constructor(message) {
+        super(message);
+    }
+}
+class BSONOffsetError extends BSONError {
+    get name() {
+        return 'BSONOffsetError';
+    }
+    constructor(message, offset, options) {
+        super(`${message}. offset: ${offset}`, options);
+        this.offset = offset;
+    }
+}
+
+let TextDecoderFatal;
+let TextDecoderNonFatal;
+function parseUtf8(buffer, start, end, fatal) {
+    if (fatal) {
+        TextDecoderFatal ??= new TextDecoder('utf8', { fatal: true });
+        try {
+            return TextDecoderFatal.decode(buffer.subarray(start, end));
+        }
+        catch (cause) {
+            throw new BSONError('Invalid UTF-8 string in BSON document', { cause });
+        }
+    }
+    TextDecoderNonFatal ??= new TextDecoder('utf8', { fatal: false });
+    return TextDecoderNonFatal.decode(buffer.subarray(start, end));
+}
+
+function tryReadBasicLatin(uint8array, start, end) {
+    if (uint8array.length === 0) {
+        return '';
+    }
+    const stringByteLength = end - start;
+    if (stringByteLength === 0) {
+        return '';
+    }
+    if (stringByteLength > 20) {
+        return null;
+    }
+    if (stringByteLength === 1 && uint8array[start] < 128) {
+        return String.fromCharCode(uint8array[start]);
+    }
+    if (stringByteLength === 2 && uint8array[start] < 128 && uint8array[start + 1] < 128) {
+        return String.fromCharCode(uint8array[start]) + String.fromCharCode(uint8array[start + 1]);
+    }
+    if (stringByteLength === 3 &&
+        uint8array[start] < 128 &&
+        uint8array[start + 1] < 128 &&
+        uint8array[start + 2] < 128) {
+        return (String.fromCharCode(uint8array[start]) +
+            String.fromCharCode(uint8array[start + 1]) +
+            String.fromCharCode(uint8array[start + 2]));
+    }
+    const latinBytes = [];
+    for (let i = start; i < end; i++) {
+        const byte = uint8array[i];
+        if (byte > 127) {
+            return null;
+        }
+        latinBytes.push(byte);
+    }
+    return String.fromCharCode(...latinBytes);
+}
+function tryWriteBasicLatin(destination, source, offset) {
+    if (source.length === 0)
+        return 0;
+    if (source.length > 25)
+        return null;
+    if (destination.length - offset < source.length)
+        return null;
+    for (let charOffset = 0, destinationOffset = offset; charOffset < source.length; charOffset++, destinationOffset++) {
+        const char = source.charCodeAt(charOffset);
+        if (char > 127)
+            return null;
+        destination[destinationOffset] = char;
+    }
+    return source.length;
+}
+
+function nodejsMathRandomBytes(byteLength) {
+    return nodeJsByteUtils.fromNumberArray(Array.from({ length: byteLength }, () => Math.floor(Math.random() * 256)));
+}
+const nodejsRandomBytes = (() => {
+    try {
+        return require('crypto').randomBytes;
+    }
+    catch {
+        return nodejsMathRandomBytes;
+    }
+})();
+const nodeJsByteUtils = {
+    toLocalBufferType(potentialBuffer) {
+        if (Buffer.isBuffer(potentialBuffer)) {
+            return potentialBuffer;
+        }
+        if (ArrayBuffer.isView(potentialBuffer)) {
+            return Buffer.from(potentialBuffer.buffer, potentialBuffer.byteOffset, potentialBuffer.byteLength);
+        }
+        const stringTag = potentialBuffer?.[Symbol.toStringTag] ?? Object.prototype.toString.call(potentialBuffer);
+        if (stringTag === 'ArrayBuffer' ||
+            stringTag === 'SharedArrayBuffer' ||
+            stringTag === '[object ArrayBuffer]' ||
+            stringTag === '[object SharedArrayBuffer]') {
+            return Buffer.from(potentialBuffer);
+        }
+        throw new BSONError(`Cannot create Buffer from the passed potentialBuffer.`);
+    },
+    allocate(size) {
+        return Buffer.alloc(size);
+    },
+    allocateUnsafe(size) {
+        return Buffer.allocUnsafe(size);
+    },
+    equals(a, b) {
+        return nodeJsByteUtils.toLocalBufferType(a).equals(b);
+    },
+    fromNumberArray(array) {
+        return Buffer.from(array);
+    },
+    fromBase64(base64) {
+        return Buffer.from(base64, 'base64');
+    },
+    toBase64(buffer) {
+        return nodeJsByteUtils.toLocalBufferType(buffer).toString('base64');
+    },
+    fromISO88591(codePoints) {
+        return Buffer.from(codePoints, 'binary');
+    },
+    toISO88591(buffer) {
+        return nodeJsByteUtils.toLocalBufferType(buffer).toString('binary');
+    },
+    fromHex(hex) {
+        return Buffer.from(hex, 'hex');
+    },
+    toHex(buffer) {
+        return nodeJsByteUtils.toLocalBufferType(buffer).toString('hex');
+    },
+    toUTF8(buffer, start, end, fatal) {
+        const basicLatin = end - start <= 20 ? tryReadBasicLatin(buffer, start, end) : null;
+        if (basicLatin != null) {
+            return basicLatin;
+        }
+        const string = nodeJsByteUtils.toLocalBufferType(buffer).toString('utf8', start, end);
+        if (fatal) {
+            for (let i = 0; i < string.length; i++) {
+                if (string.charCodeAt(i) === 0xfffd) {
+                    parseUtf8(buffer, start, end, true);
+                    break;
+                }
+            }
+        }
+        return string;
+    },
+    utf8ByteLength(input) {
+        return Buffer.byteLength(input, 'utf8');
+    },
+    encodeUTF8Into(buffer, source, byteOffset) {
+        const latinBytesWritten = tryWriteBasicLatin(buffer, source, byteOffset);
+        if (latinBytesWritten != null) {
+            return latinBytesWritten;
+        }
+        return nodeJsByteUtils.toLocalBufferType(buffer).write(source, byteOffset, undefined, 'utf8');
+    },
+    randomBytes: nodejsRandomBytes,
+    swap32(buffer) {
+        return nodeJsByteUtils.toLocalBufferType(buffer).swap32();
+    }
+};
+
+function isReactNative() {
+    const { navigator } = globalThis;
+    return typeof navigator === 'object' && navigator.product === 'ReactNative';
+}
+function webMathRandomBytes(byteLength) {
+    if (byteLength < 0) {
+        throw new RangeError(`The argument 'byteLength' is invalid. Received ${byteLength}`);
+    }
+    return webByteUtils.fromNumberArray(Array.from({ length: byteLength }, () => Math.floor(Math.random() * 256)));
+}
+const webRandomBytes = (() => {
+    const { crypto } = globalThis;
+    if (crypto != null && typeof crypto.getRandomValues === 'function') {
+        return (byteLength) => {
+            return crypto.getRandomValues(webByteUtils.allocate(byteLength));
+        };
+    }
+    else {
+        if (isReactNative()) {
+            const { console } = globalThis;
+            console?.warn?.('BSON: For React Native please polyfill crypto.getRandomValues, e.g. using: https://www.npmjs.com/package/react-native-get-random-values.');
+        }
+        return webMathRandomBytes;
+    }
+})();
+const HEX_DIGIT = /(\d|[a-f])/i;
+const webByteUtils = {
+    toLocalBufferType(potentialUint8array) {
+        const stringTag = potentialUint8array?.[Symbol.toStringTag] ??
+            Object.prototype.toString.call(potentialUint8array);
+        if (stringTag === 'Uint8Array') {
+            return potentialUint8array;
+        }
+        if (ArrayBuffer.isView(potentialUint8array)) {
+            return new Uint8Array(potentialUint8array.buffer.slice(potentialUint8array.byteOffset, potentialUint8array.byteOffset + potentialUint8array.byteLength));
+        }
+        if (stringTag === 'ArrayBuffer' ||
+            stringTag === 'SharedArrayBuffer' ||
+            stringTag === '[object ArrayBuffer]' ||
+            stringTag === '[object SharedArrayBuffer]') {
+            return new Uint8Array(potentialUint8array);
+        }
+        throw new BSONError(`Cannot make a Uint8Array from passed potentialBuffer.`);
+    },
+    allocate(size) {
+        if (typeof size !== 'number') {
+            throw new TypeError(`The "size" argument must be of type number. Received ${String(size)}`);
+        }
+        return new Uint8Array(size);
+    },
+    allocateUnsafe(size) {
+        return webByteUtils.allocate(size);
+    },
+    equals(a, b) {
+        if (a.byteLength !== b.byteLength) {
+            return false;
+        }
+        for (let i = 0; i < a.byteLength; i++) {
+            if (a[i] !== b[i]) {
+                return false;
+            }
+        }
+        return true;
+    },
+    fromNumberArray(array) {
+        return Uint8Array.from(array);
+    },
+    fromBase64(base64) {
+        return Uint8Array.from(atob(base64), c => c.charCodeAt(0));
+    },
+    toBase64(uint8array) {
+        return btoa(webByteUtils.toISO88591(uint8array));
+    },
+    fromISO88591(codePoints) {
+        return Uint8Array.from(codePoints, c => c.charCodeAt(0) & 0xff);
+    },
+    toISO88591(uint8array) {
+        return Array.from(Uint16Array.from(uint8array), b => String.fromCharCode(b)).join('');
+    },
+    fromHex(hex) {
+        const evenLengthHex = hex.length % 2 === 0 ? hex : hex.slice(0, hex.length - 1);
+        const buffer = [];
+        for (let i = 0; i < evenLengthHex.length; i += 2) {
+            const firstDigit = evenLengthHex[i];
+            const secondDigit = evenLengthHex[i + 1];
+            if (!HEX_DIGIT.test(firstDigit)) {
+                break;
+            }
+            if (!HEX_DIGIT.test(secondDigit)) {
+                break;
+            }
+            const hexDigit = Number.parseInt(`${firstDigit}${secondDigit}`, 16);
+            buffer.push(hexDigit);
+        }
+        return Uint8Array.from(buffer);
+    },
+    toHex(uint8array) {
+        return Array.from(uint8array, byte => byte.toString(16).padStart(2, '0')).join('');
+    },
+    toUTF8(uint8array, start, end, fatal) {
+        const basicLatin = end - start <= 20 ? tryReadBasicLatin(uint8array, start, end) : null;
+        if (basicLatin != null) {
+            return basicLatin;
+        }
+        return parseUtf8(uint8array, start, end, fatal);
+    },
+    utf8ByteLength(input) {
+        return new TextEncoder().encode(input).byteLength;
+    },
+    encodeUTF8Into(uint8array, source, byteOffset) {
+        const bytes = new TextEncoder().encode(source);
+        uint8array.set(bytes, byteOffset);
+        return bytes.byteLength;
+    },
+    randomBytes: webRandomBytes,
+    swap32(buffer) {
+        if (buffer.length % 4 !== 0) {
+            throw new RangeError('Buffer size must be a multiple of 32-bits');
+        }
+        for (let i = 0; i < buffer.length; i += 4) {
+            const byte0 = buffer[i];
+            const byte1 = buffer[i + 1];
+            const byte2 = buffer[i + 2];
+            const byte3 = buffer[i + 3];
+            buffer[i] = byte3;
+            buffer[i + 1] = byte2;
+            buffer[i + 2] = byte1;
+            buffer[i + 3] = byte0;
+        }
+        return buffer;
+    }
+};
+
+const hasGlobalBuffer = typeof Buffer === 'function' && Buffer.prototype?._isBuffer !== true;
+const ByteUtils = hasGlobalBuffer ? nodeJsByteUtils : webByteUtils;
+
+class BSONValue {
+    get [BSON_VERSION_SYMBOL]() {
+        return BSON_MAJOR_VERSION;
+    }
+    [Symbol.for('nodejs.util.inspect.custom')](depth, options, inspect) {
+        return this.inspect(depth, options, inspect);
+    }
+}
+
+const FLOAT = new Float64Array(1);
+const FLOAT_BYTES = new Uint8Array(FLOAT.buffer, 0, 8);
+FLOAT[0] = -1;
+const isBigEndian = FLOAT_BYTES[7] === 0;
+const NumberUtils = {
+    isBigEndian,
+    getNonnegativeInt32LE(source, offset) {
+        if (source[offset + 3] > 127) {
+            throw new RangeError(`Size cannot be negative at offset: ${offset}`);
+        }
+        return (source[offset] |
+            (source[offset + 1] << 8) |
+            (source[offset + 2] << 16) |
+            (source[offset + 3] << 24));
+    },
+    getInt32LE(source, offset) {
+        return (source[offset] |
+            (source[offset + 1] << 8) |
+            (source[offset + 2] << 16) |
+            (source[offset + 3] << 24));
+    },
+    getUint32LE(source, offset) {
+        return (source[offset] +
+            source[offset + 1] * 256 +
+            source[offset + 2] * 65536 +
+            source[offset + 3] * 16777216);
+    },
+    getUint32BE(source, offset) {
+        return (source[offset + 3] +
+            source[offset + 2] * 256 +
+            source[offset + 1] * 65536 +
+            source[offset] * 16777216);
+    },
+    getBigInt64LE(source, offset) {
+        const lo = NumberUtils.getUint32LE(source, offset);
+        const hi = NumberUtils.getUint32LE(source, offset + 4);
+        return (BigInt(hi) << BigInt(32)) + BigInt(lo);
+    },
+    getFloat64LE: isBigEndian
+        ? (source, offset) => {
+            FLOAT_BYTES[7] = source[offset];
+            FLOAT_BYTES[6] = source[offset + 1];
+            FLOAT_BYTES[5] = source[offset + 2];
+            FLOAT_BYTES[4] = source[offset + 3];
+            FLOAT_BYTES[3] = source[offset + 4];
+            FLOAT_BYTES[2] = source[offset + 5];
+            FLOAT_BYTES[1] = source[offset + 6];
+            FLOAT_BYTES[0] = source[offset + 7];
+            return FLOAT[0];
+        }
+        : (source, offset) => {
+            FLOAT_BYTES[0] = source[offset];
+            FLOAT_BYTES[1] = source[offset + 1];
+            FLOAT_BYTES[2] = source[offset + 2];
+            FLOAT_BYTES[3] = source[offset + 3];
+            FLOAT_BYTES[4] = source[offset + 4];
+            FLOAT_BYTES[5] = source[offset + 5];
+            FLOAT_BYTES[6] = source[offset + 6];
+            FLOAT_BYTES[7] = source[offset + 7];
+            return FLOAT[0];
+        },
+    setInt32BE(destination, offset, value) {
+        destination[offset + 3] = value;
+        value >>>= 8;
+        destination[offset + 2] = value;
+        value >>>= 8;
+        destination[offset + 1] = value;
+        value >>>= 8;
+        destination[offset] = value;
+        return 4;
+    },
+    setInt32LE(destination, offset, value) {
+        destination[offset] = value;
+        value >>>= 8;
+        destination[offset + 1] = value;
+        value >>>= 8;
+        destination[offset + 2] = value;
+        value >>>= 8;
+        destination[offset + 3] = value;
+        return 4;
+    },
+    setBigInt64LE(destination, offset, value) {
+        const mask32bits = BigInt(0xffff_ffff);
+        let lo = Number(value & mask32bits);
+        destination[offset] = lo;
+        lo >>= 8;
+        destination[offset + 1] = lo;
+        lo >>= 8;
+        destination[offset + 2] = lo;
+        lo >>= 8;
+        destination[offset + 3] = lo;
+        let hi = Number((value >> BigInt(32)) & mask32bits);
+        destination[offset + 4] = hi;
+        hi >>= 8;
+        destination[offset + 5] = hi;
+        hi >>= 8;
+        destination[offset + 6] = hi;
+        hi >>= 8;
+        destination[offset + 7] = hi;
+        return 8;
+    },
+    setFloat64LE: isBigEndian
+        ? (destination, offset, value) => {
+            FLOAT[0] = value;
+            destination[offset] = FLOAT_BYTES[7];
+            destination[offset + 1] = FLOAT_BYTES[6];
+            destination[offset + 2] = FLOAT_BYTES[5];
+            destination[offset + 3] = FLOAT_BYTES[4];
+            destination[offset + 4] = FLOAT_BYTES[3];
+            destination[offset + 5] = FLOAT_BYTES[2];
+            destination[offset + 6] = FLOAT_BYTES[1];
+            destination[offset + 7] = FLOAT_BYTES[0];
+            return 8;
+        }
+        : (destination, offset, value) => {
+            FLOAT[0] = value;
+            destination[offset] = FLOAT_BYTES[0];
+            destination[offset + 1] = FLOAT_BYTES[1];
+            destination[offset + 2] = FLOAT_BYTES[2];
+            destination[offset + 3] = FLOAT_BYTES[3];
+            destination[offset + 4] = FLOAT_BYTES[4];
+            destination[offset + 5] = FLOAT_BYTES[5];
+            destination[offset + 6] = FLOAT_BYTES[6];
+            destination[offset + 7] = FLOAT_BYTES[7];
+            return 8;
+        }
+};
+
+class Binary extends BSONValue {
+    get _bsontype() {
+        return 'Binary';
+    }
+    constructor(buffer, subType) {
+        super();
+        if (!(buffer == null) &&
+            typeof buffer === 'string' &&
+            !ArrayBuffer.isView(buffer) &&
+            !isAnyArrayBuffer(buffer) &&
+            !Array.isArray(buffer)) {
+            throw new BSONError('Binary can only be constructed from Uint8Array or number[]');
+        }
+        this.sub_type = subType ?? Binary.BSON_BINARY_SUBTYPE_DEFAULT;
+        if (buffer == null) {
+            this.buffer = ByteUtils.allocate(Binary.BUFFER_SIZE);
+            this.position = 0;
+        }
+        else {
+            this.buffer = Array.isArray(buffer)
+                ? ByteUtils.fromNumberArray(buffer)
+                : ByteUtils.toLocalBufferType(buffer);
+            this.position = this.buffer.byteLength;
+        }
+    }
+    put(byteValue) {
+        if (typeof byteValue === 'string' && byteValue.length !== 1) {
+            throw new BSONError('only accepts single character String');
+        }
+        else if (typeof byteValue !== 'number' && byteValue.length !== 1)
+            throw new BSONError('only accepts single character Uint8Array or Array');
+        let decodedByte;
+        if (typeof byteValue === 'string') {
+            decodedByte = byteValue.charCodeAt(0);
+        }
+        else if (typeof byteValue === 'number') {
+            decodedByte = byteValue;
+        }
+        else {
+            decodedByte = byteValue[0];
+        }
+        if (decodedByte < 0 || decodedByte > 255) {
+            throw new BSONError('only accepts number in a valid unsigned byte range 0-255');
+        }
+        if (this.buffer.byteLength > this.position) {
+            this.buffer[this.position++] = decodedByte;
+        }
+        else {
+            const newSpace = ByteUtils.allocate(Binary.BUFFER_SIZE + this.buffer.length);
+            newSpace.set(this.buffer, 0);
+            this.buffer = newSpace;
+            this.buffer[this.position++] = decodedByte;
+        }
+    }
+    write(sequence, offset) {
+        offset = typeof offset === 'number' ? offset : this.position;
+        if (this.buffer.byteLength < offset + sequence.length) {
+            const newSpace = ByteUtils.allocate(this.buffer.byteLength + sequence.length);
+            newSpace.set(this.buffer, 0);
+            this.buffer = newSpace;
+        }
+        if (ArrayBuffer.isView(sequence)) {
+            this.buffer.set(ByteUtils.toLocalBufferType(sequence), offset);
+            this.position =
+                offset + sequence.byteLength > this.position ? offset + sequence.length : this.position;
+        }
+        else if (typeof sequence === 'string') {
+            throw new BSONError('input cannot be string');
+        }
+    }
+    read(position, length) {
+        length = length && length > 0 ? length : this.position;
+        const end = position + length;
+        return this.buffer.subarray(position, end > this.position ? this.position : end);
+    }
+    value() {
+        return this.buffer.length === this.position
+            ? this.buffer
+            : this.buffer.subarray(0, this.position);
+    }
+    length() {
+        return this.position;
+    }
+    toJSON() {
+        return ByteUtils.toBase64(this.buffer.subarray(0, this.position));
+    }
+    toString(encoding) {
+        if (encoding === 'hex')
+            return ByteUtils.toHex(this.buffer.subarray(0, this.position));
+        if (encoding === 'base64')
+            return ByteUtils.toBase64(this.buffer.subarray(0, this.position));
+        if (encoding === 'utf8' || encoding === 'utf-8')
+            return ByteUtils.toUTF8(this.buffer, 0, this.position, false);
+        return ByteUtils.toUTF8(this.buffer, 0, this.position, false);
+    }
+    toExtendedJSON(options) {
+        options = options || {};
+        if (this.sub_type === Binary.SUBTYPE_VECTOR) {
+            validateBinaryVector(this);
+        }
+        const base64String = ByteUtils.toBase64(this.buffer);
+        const subType = Number(this.sub_type).toString(16);
+        if (options.legacy) {
+            return {
+                $binary: base64String,
+                $type: subType.length === 1 ? '0' + subType : subType
+            };
+        }
+        return {
+            $binary: {
+                base64: base64String,
+                subType: subType.length === 1 ? '0' + subType : subType
+            }
+        };
+    }
+    toUUID() {
+        if (this.sub_type === Binary.SUBTYPE_UUID) {
+            return new UUID(this.buffer.subarray(0, this.position));
+        }
+        throw new BSONError(`Binary sub_type "${this.sub_type}" is not supported for converting to UUID. Only "${Binary.SUBTYPE_UUID}" is currently supported.`);
+    }
+    static createFromHexString(hex, subType) {
+        return new Binary(ByteUtils.fromHex(hex), subType);
+    }
+    static createFromBase64(base64, subType) {
+        return new Binary(ByteUtils.fromBase64(base64), subType);
+    }
+    static fromExtendedJSON(doc, options) {
+        options = options || {};
+        let data;
+        let type;
+        if ('$binary' in doc) {
+            if (options.legacy && typeof doc.$binary === 'string' && '$type' in doc) {
+                type = doc.$type ? parseInt(doc.$type, 16) : 0;
+                data = ByteUtils.fromBase64(doc.$binary);
+            }
+            else {
+                if (typeof doc.$binary !== 'string') {
+                    type = doc.$binary.subType ? parseInt(doc.$binary.subType, 16) : 0;
+                    data = ByteUtils.fromBase64(doc.$binary.base64);
+                }
+            }
+        }
+        else if ('$uuid' in doc) {
+            type = 4;
+            data = UUID.bytesFromString(doc.$uuid);
+        }
+        if (!data) {
+            throw new BSONError(`Unexpected Binary Extended JSON format ${JSON.stringify(doc)}`);
+        }
+        return type === BSON_BINARY_SUBTYPE_UUID_NEW ? new UUID(data) : new Binary(data, type);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        const base64 = ByteUtils.toBase64(this.buffer.subarray(0, this.position));
+        const base64Arg = inspect(base64, options);
+        const subTypeArg = inspect(this.sub_type, options);
+        return `Binary.createFromBase64(${base64Arg}, ${subTypeArg})`;
+    }
+    toInt8Array() {
+        if (this.sub_type !== Binary.SUBTYPE_VECTOR) {
+            throw new BSONError('Binary sub_type is not Vector');
+        }
+        if (this.buffer[0] !== Binary.VECTOR_TYPE.Int8) {
+            throw new BSONError('Binary datatype field is not Int8');
+        }
+        return new Int8Array(this.buffer.buffer.slice(this.buffer.byteOffset + 2, this.buffer.byteOffset + this.position));
+    }
+    toFloat32Array() {
+        if (this.sub_type !== Binary.SUBTYPE_VECTOR) {
+            throw new BSONError('Binary sub_type is not Vector');
+        }
+        if (this.buffer[0] !== Binary.VECTOR_TYPE.Float32) {
+            throw new BSONError('Binary datatype field is not Float32');
+        }
+        const floatBytes = new Uint8Array(this.buffer.buffer.slice(this.buffer.byteOffset + 2, this.buffer.byteOffset + this.position));
+        if (NumberUtils.isBigEndian)
+            ByteUtils.swap32(floatBytes);
+        return new Float32Array(floatBytes.buffer);
+    }
+    toPackedBits() {
+        if (this.sub_type !== Binary.SUBTYPE_VECTOR) {
+            throw new BSONError('Binary sub_type is not Vector');
+        }
+        if (this.buffer[0] !== Binary.VECTOR_TYPE.PackedBit) {
+            throw new BSONError('Binary datatype field is not packed bit');
+        }
+        return new Uint8Array(this.buffer.buffer.slice(this.buffer.byteOffset + 2, this.buffer.byteOffset + this.position));
+    }
+    toBits() {
+        if (this.sub_type !== Binary.SUBTYPE_VECTOR) {
+            throw new BSONError('Binary sub_type is not Vector');
+        }
+        if (this.buffer[0] !== Binary.VECTOR_TYPE.PackedBit) {
+            throw new BSONError('Binary datatype field is not packed bit');
+        }
+        const byteCount = this.length() - 2;
+        const bitCount = byteCount * 8 - this.buffer[1];
+        const bits = new Int8Array(bitCount);
+        for (let bitOffset = 0; bitOffset < bits.length; bitOffset++) {
+            const byteOffset = (bitOffset / 8) | 0;
+            const byte = this.buffer[byteOffset + 2];
+            const shift = 7 - (bitOffset % 8);
+            const bit = (byte >> shift) & 1;
+            bits[bitOffset] = bit;
+        }
+        return bits;
+    }
+    static fromInt8Array(array) {
+        const buffer = ByteUtils.allocate(array.byteLength + 2);
+        buffer[0] = Binary.VECTOR_TYPE.Int8;
+        buffer[1] = 0;
+        const intBytes = new Uint8Array(array.buffer, array.byteOffset, array.byteLength);
+        buffer.set(intBytes, 2);
+        return new this(buffer, this.SUBTYPE_VECTOR);
+    }
+    static fromFloat32Array(array) {
+        const binaryBytes = ByteUtils.allocate(array.byteLength + 2);
+        binaryBytes[0] = Binary.VECTOR_TYPE.Float32;
+        binaryBytes[1] = 0;
+        const floatBytes = new Uint8Array(array.buffer, array.byteOffset, array.byteLength);
+        binaryBytes.set(floatBytes, 2);
+        if (NumberUtils.isBigEndian)
+            ByteUtils.swap32(new Uint8Array(binaryBytes.buffer, 2));
+        return new this(binaryBytes, this.SUBTYPE_VECTOR);
+    }
+    static fromPackedBits(array, padding = 0) {
+        const buffer = ByteUtils.allocate(array.byteLength + 2);
+        buffer[0] = Binary.VECTOR_TYPE.PackedBit;
+        buffer[1] = padding;
+        buffer.set(array, 2);
+        return new this(buffer, this.SUBTYPE_VECTOR);
+    }
+    static fromBits(bits) {
+        const byteLength = (bits.length + 7) >>> 3;
+        const bytes = new Uint8Array(byteLength + 2);
+        bytes[0] = Binary.VECTOR_TYPE.PackedBit;
+        const remainder = bits.length % 8;
+        bytes[1] = remainder === 0 ? 0 : 8 - remainder;
+        for (let bitOffset = 0; bitOffset < bits.length; bitOffset++) {
+            const byteOffset = bitOffset >>> 3;
+            const bit = bits[bitOffset];
+            if (bit !== 0 && bit !== 1) {
+                throw new BSONError(`Invalid bit value at ${bitOffset}: must be 0 or 1, found ${bits[bitOffset]}`);
+            }
+            if (bit === 0)
+                continue;
+            const shift = 7 - (bitOffset % 8);
+            bytes[byteOffset + 2] |= bit << shift;
+        }
+        return new this(bytes, Binary.SUBTYPE_VECTOR);
+    }
+}
+Binary.BSON_BINARY_SUBTYPE_DEFAULT = 0;
+Binary.BUFFER_SIZE = 256;
+Binary.SUBTYPE_DEFAULT = 0;
+Binary.SUBTYPE_FUNCTION = 1;
+Binary.SUBTYPE_BYTE_ARRAY = 2;
+Binary.SUBTYPE_UUID_OLD = 3;
+Binary.SUBTYPE_UUID = 4;
+Binary.SUBTYPE_MD5 = 5;
+Binary.SUBTYPE_ENCRYPTED = 6;
+Binary.SUBTYPE_COLUMN = 7;
+Binary.SUBTYPE_SENSITIVE = 8;
+Binary.SUBTYPE_VECTOR = 9;
+Binary.SUBTYPE_USER_DEFINED = 128;
+Binary.VECTOR_TYPE = Object.freeze({
+    Int8: 0x03,
+    Float32: 0x27,
+    PackedBit: 0x10
+});
+function validateBinaryVector(vector) {
+    if (vector.sub_type !== Binary.SUBTYPE_VECTOR)
+        return;
+    const size = vector.position;
+    const datatype = vector.buffer[0];
+    const padding = vector.buffer[1];
+    if ((datatype === Binary.VECTOR_TYPE.Float32 || datatype === Binary.VECTOR_TYPE.Int8) &&
+        padding !== 0) {
+        throw new BSONError('Invalid Vector: padding must be zero for int8 and float32 vectors');
+    }
+    if (datatype === Binary.VECTOR_TYPE.PackedBit && padding !== 0 && size === 2) {
+        throw new BSONError('Invalid Vector: padding must be zero for packed bit vectors that are empty');
+    }
+    if (datatype === Binary.VECTOR_TYPE.PackedBit && padding > 7) {
+        throw new BSONError(`Invalid Vector: padding must be a value between 0 and 7. found: ${padding}`);
+    }
+}
+const UUID_BYTE_LENGTH = 16;
+const UUID_WITHOUT_DASHES = /^[0-9A-F]{32}$/i;
+const UUID_WITH_DASHES = /^[0-9A-F]{8}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{12}$/i;
+class UUID extends Binary {
+    constructor(input) {
+        let bytes;
+        if (input == null) {
+            bytes = UUID.generate();
+        }
+        else if (input instanceof UUID) {
+            bytes = ByteUtils.toLocalBufferType(new Uint8Array(input.buffer));
+        }
+        else if (ArrayBuffer.isView(input) && input.byteLength === UUID_BYTE_LENGTH) {
+            bytes = ByteUtils.toLocalBufferType(input);
+        }
+        else if (typeof input === 'string') {
+            bytes = UUID.bytesFromString(input);
+        }
+        else {
+            throw new BSONError('Argument passed in UUID constructor must be a UUID, a 16 byte Buffer or a 32/36 character hex string (dashes excluded/included, format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx).');
+        }
+        super(bytes, BSON_BINARY_SUBTYPE_UUID_NEW);
+    }
+    get id() {
+        return this.buffer;
+    }
+    set id(value) {
+        this.buffer = value;
+    }
+    toHexString(includeDashes = true) {
+        if (includeDashes) {
+            return [
+                ByteUtils.toHex(this.buffer.subarray(0, 4)),
+                ByteUtils.toHex(this.buffer.subarray(4, 6)),
+                ByteUtils.toHex(this.buffer.subarray(6, 8)),
+                ByteUtils.toHex(this.buffer.subarray(8, 10)),
+                ByteUtils.toHex(this.buffer.subarray(10, 16))
+            ].join('-');
+        }
+        return ByteUtils.toHex(this.buffer);
+    }
+    toString(encoding) {
+        if (encoding === 'hex')
+            return ByteUtils.toHex(this.id);
+        if (encoding === 'base64')
+            return ByteUtils.toBase64(this.id);
+        return this.toHexString();
+    }
+    toJSON() {
+        return this.toHexString();
+    }
+    equals(otherId) {
+        if (!otherId) {
+            return false;
+        }
+        if (otherId instanceof UUID) {
+            return ByteUtils.equals(otherId.id, this.id);
+        }
+        try {
+            return ByteUtils.equals(new UUID(otherId).id, this.id);
+        }
+        catch {
+            return false;
+        }
+    }
+    toBinary() {
+        return new Binary(this.id, Binary.SUBTYPE_UUID);
+    }
+    static generate() {
+        const bytes = ByteUtils.randomBytes(UUID_BYTE_LENGTH);
+        bytes[6] = (bytes[6] & 0x0f) | 0x40;
+        bytes[8] = (bytes[8] & 0x3f) | 0x80;
+        return bytes;
+    }
+    static isValid(input) {
+        if (!input) {
+            return false;
+        }
+        if (typeof input === 'string') {
+            return UUID.isValidUUIDString(input);
+        }
+        if (isUint8Array(input)) {
+            return input.byteLength === UUID_BYTE_LENGTH;
+        }
+        return (input._bsontype === 'Binary' &&
+            input.sub_type === this.SUBTYPE_UUID &&
+            input.buffer.byteLength === 16);
+    }
+    static createFromHexString(hexString) {
+        const buffer = UUID.bytesFromString(hexString);
+        return new UUID(buffer);
+    }
+    static createFromBase64(base64) {
+        return new UUID(ByteUtils.fromBase64(base64));
+    }
+    static bytesFromString(representation) {
+        if (!UUID.isValidUUIDString(representation)) {
+            throw new BSONError('UUID string representation must be 32 hex digits or canonical hyphenated representation');
+        }
+        return ByteUtils.fromHex(representation.replace(/-/g, ''));
+    }
+    static isValidUUIDString(representation) {
+        return UUID_WITHOUT_DASHES.test(representation) || UUID_WITH_DASHES.test(representation);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        return `new UUID(${inspect(this.toHexString(), options)})`;
+    }
+}
+
+class Code extends BSONValue {
+    get _bsontype() {
+        return 'Code';
+    }
+    constructor(code, scope) {
+        super();
+        this.code = code.toString();
+        this.scope = scope ?? null;
+    }
+    toJSON() {
+        if (this.scope != null) {
+            return { code: this.code, scope: this.scope };
+        }
+        return { code: this.code };
+    }
+    toExtendedJSON() {
+        if (this.scope) {
+            return { $code: this.code, $scope: this.scope };
+        }
+        return { $code: this.code };
+    }
+    static fromExtendedJSON(doc) {
+        return new Code(doc.$code, doc.$scope);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        let parametersString = inspect(this.code, options);
+        const multiLineFn = parametersString.includes('\n');
+        if (this.scope != null) {
+            parametersString += `,${multiLineFn ? '\n' : ' '}${inspect(this.scope, options)}`;
+        }
+        const endingNewline = multiLineFn && this.scope === null;
+        return `new Code(${multiLineFn ? '\n' : ''}${parametersString}${endingNewline ? '\n' : ''})`;
+    }
+}
+
+function isDBRefLike(value) {
+    return (value != null &&
+        typeof value === 'object' &&
+        '$id' in value &&
+        value.$id != null &&
+        '$ref' in value &&
+        typeof value.$ref === 'string' &&
+        (!('$db' in value) || ('$db' in value && typeof value.$db === 'string')));
+}
+class DBRef extends BSONValue {
+    get _bsontype() {
+        return 'DBRef';
+    }
+    constructor(collection, oid, db, fields) {
+        super();
+        const parts = collection.split('.');
+        if (parts.length === 2) {
+            db = parts.shift();
+            collection = parts.shift();
+        }
+        this.collection = collection;
+        this.oid = oid;
+        this.db = db;
+        this.fields = fields || {};
+    }
+    get namespace() {
+        return this.collection;
+    }
+    set namespace(value) {
+        this.collection = value;
+    }
+    toJSON() {
+        const o = Object.assign({
+            $ref: this.collection,
+            $id: this.oid
+        }, this.fields);
+        if (this.db != null)
+            o.$db = this.db;
+        return o;
+    }
+    toExtendedJSON(options) {
+        options = options || {};
+        let o = {
+            $ref: this.collection,
+            $id: this.oid
+        };
+        if (options.legacy) {
+            return o;
+        }
+        if (this.db)
+            o.$db = this.db;
+        o = Object.assign(o, this.fields);
+        return o;
+    }
+    static fromExtendedJSON(doc) {
+        const copy = Object.assign({}, doc);
+        delete copy.$ref;
+        delete copy.$id;
+        delete copy.$db;
+        return new DBRef(doc.$ref, doc.$id, doc.$db, copy);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        const args = [
+            inspect(this.namespace, options),
+            inspect(this.oid, options),
+            ...(this.db ? [inspect(this.db, options)] : []),
+            ...(Object.keys(this.fields).length > 0 ? [inspect(this.fields, options)] : [])
+        ];
+        args[1] = inspect === defaultInspect ? `new ObjectId(${args[1]})` : args[1];
+        return `new DBRef(${args.join(', ')})`;
+    }
+}
+
+function removeLeadingZerosAndExplicitPlus(str) {
+    if (str === '') {
+        return str;
+    }
+    let startIndex = 0;
+    const isNegative = str[startIndex] === '-';
+    const isExplicitlyPositive = str[startIndex] === '+';
+    if (isExplicitlyPositive || isNegative) {
+        startIndex += 1;
+    }
+    let foundInsignificantZero = false;
+    for (; startIndex < str.length && str[startIndex] === '0'; ++startIndex) {
+        foundInsignificantZero = true;
+    }
+    if (!foundInsignificantZero) {
+        return isExplicitlyPositive ? str.slice(1) : str;
+    }
+    return `${isNegative ? '-' : ''}${str.length === startIndex ? '0' : str.slice(startIndex)}`;
+}
+function validateStringCharacters(str, radix) {
+    radix = radix ?? 10;
+    const validCharacters = '0123456789abcdefghijklmnopqrstuvwxyz'.slice(0, radix);
+    const regex = new RegExp(`[^-+${validCharacters}]`, 'i');
+    return regex.test(str) ? false : str;
+}
+
+let wasm = undefined;
+try {
+    wasm = new WebAssembly.Instance(new WebAssembly.Module(new Uint8Array([0, 97, 115, 109, 1, 0, 0, 0, 1, 13, 2, 96, 0, 1, 127, 96, 4, 127, 127, 127, 127, 1, 127, 3, 7, 6, 0, 1, 1, 1, 1, 1, 6, 6, 1, 127, 1, 65, 0, 11, 7, 50, 6, 3, 109, 117, 108, 0, 1, 5, 100, 105, 118, 95, 115, 0, 2, 5, 100, 105, 118, 95, 117, 0, 3, 5, 114, 101, 109, 95, 115, 0, 4, 5, 114, 101, 109, 95, 117, 0, 5, 8, 103, 101, 116, 95, 104, 105, 103, 104, 0, 0, 10, 191, 1, 6, 4, 0, 35, 0, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 126, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 127, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 128, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 129, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 130, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11])), {}).exports;
+}
+catch {
+}
+const TWO_PWR_16_DBL = 1 << 16;
+const TWO_PWR_24_DBL = 1 << 24;
+const TWO_PWR_32_DBL = TWO_PWR_16_DBL * TWO_PWR_16_DBL;
+const TWO_PWR_64_DBL = TWO_PWR_32_DBL * TWO_PWR_32_DBL;
+const TWO_PWR_63_DBL = TWO_PWR_64_DBL / 2;
+const INT_CACHE = {};
+const UINT_CACHE = {};
+const MAX_INT64_STRING_LENGTH = 20;
+const DECIMAL_REG_EX = /^(\+?0|(\+|-)?[1-9][0-9]*)$/;
+class Long extends BSONValue {
+    get _bsontype() {
+        return 'Long';
+    }
+    get __isLong__() {
+        return true;
+    }
+    constructor(lowOrValue = 0, highOrUnsigned, unsigned) {
+        super();
+        const unsignedBool = typeof highOrUnsigned === 'boolean' ? highOrUnsigned : Boolean(unsigned);
+        const high = typeof highOrUnsigned === 'number' ? highOrUnsigned : 0;
+        const res = typeof lowOrValue === 'string'
+            ? Long.fromString(lowOrValue, unsignedBool)
+            : typeof lowOrValue === 'bigint'
+                ? Long.fromBigInt(lowOrValue, unsignedBool)
+                : { low: lowOrValue | 0, high: high | 0, unsigned: unsignedBool };
+        this.low = res.low;
+        this.high = res.high;
+        this.unsigned = res.unsigned;
+    }
+    static fromBits(lowBits, highBits, unsigned) {
+        return new Long(lowBits, highBits, unsigned);
+    }
+    static fromInt(value, unsigned) {
+        let obj, cachedObj, cache;
+        if (unsigned) {
+            value >>>= 0;
+            if ((cache = 0 <= value && value < 256)) {
+                cachedObj = UINT_CACHE[value];
+                if (cachedObj)
+                    return cachedObj;
+            }
+            obj = Long.fromBits(value, (value | 0) < 0 ? -1 : 0, true);
+            if (cache)
+                UINT_CACHE[value] = obj;
+            return obj;
+        }
+        else {
+            value |= 0;
+            if ((cache = -128 <= value && value < 128)) {
+                cachedObj = INT_CACHE[value];
+                if (cachedObj)
+                    return cachedObj;
+            }
+            obj = Long.fromBits(value, value < 0 ? -1 : 0, false);
+            if (cache)
+                INT_CACHE[value] = obj;
+            return obj;
+        }
+    }
+    static fromNumber(value, unsigned) {
+        if (isNaN(value))
+            return unsigned ? Long.UZERO : Long.ZERO;
+        if (unsigned) {
+            if (value < 0)
+                return Long.UZERO;
+            if (value >= TWO_PWR_64_DBL)
+                return Long.MAX_UNSIGNED_VALUE;
+        }
+        else {
+            if (value <= -TWO_PWR_63_DBL)
+                return Long.MIN_VALUE;
+            if (value + 1 >= TWO_PWR_63_DBL)
+                return Long.MAX_VALUE;
+        }
+        if (value < 0)
+            return Long.fromNumber(-value, unsigned).neg();
+        return Long.fromBits(value % TWO_PWR_32_DBL | 0, (value / TWO_PWR_32_DBL) | 0, unsigned);
+    }
+    static fromBigInt(value, unsigned) {
+        const FROM_BIGINT_BIT_MASK = BigInt(0xffffffff);
+        const FROM_BIGINT_BIT_SHIFT = BigInt(32);
+        return new Long(Number(value & FROM_BIGINT_BIT_MASK), Number((value >> FROM_BIGINT_BIT_SHIFT) & FROM_BIGINT_BIT_MASK), unsigned);
+    }
+    static _fromString(str, unsigned, radix) {
+        if (str.length === 0)
+            throw new BSONError('empty string');
+        if (radix < 2 || 36 < radix)
+            throw new BSONError('radix');
+        let p;
+        if ((p = str.indexOf('-')) > 0)
+            throw new BSONError('interior hyphen');
+        else if (p === 0) {
+            return Long._fromString(str.substring(1), unsigned, radix).neg();
+        }
+        const radixToPower = Long.fromNumber(Math.pow(radix, 8));
+        let result = Long.ZERO;
+        for (let i = 0; i < str.length; i += 8) {
+            const size = Math.min(8, str.length - i), value = parseInt(str.substring(i, i + size), radix);
+            if (size < 8) {
+                const power = Long.fromNumber(Math.pow(radix, size));
+                result = result.mul(power).add(Long.fromNumber(value));
+            }
+            else {
+                result = result.mul(radixToPower);
+                result = result.add(Long.fromNumber(value));
+            }
+        }
+        result.unsigned = unsigned;
+        return result;
+    }
+    static fromStringStrict(str, unsignedOrRadix, radix) {
+        let unsigned = false;
+        if (typeof unsignedOrRadix === 'number') {
+            (radix = unsignedOrRadix), (unsignedOrRadix = false);
+        }
+        else {
+            unsigned = !!unsignedOrRadix;
+        }
+        radix ??= 10;
+        if (str.trim() !== str) {
+            throw new BSONError(`Input: '${str}' contains leading and/or trailing whitespace`);
+        }
+        if (!validateStringCharacters(str, radix)) {
+            throw new BSONError(`Input: '${str}' contains invalid characters for radix: ${radix}`);
+        }
+        const cleanedStr = removeLeadingZerosAndExplicitPlus(str);
+        const result = Long._fromString(cleanedStr, unsigned, radix);
+        if (result.toString(radix).toLowerCase() !== cleanedStr.toLowerCase()) {
+            throw new BSONError(`Input: ${str} is not representable as ${result.unsigned ? 'an unsigned' : 'a signed'} 64-bit Long ${radix != null ? `with radix: ${radix}` : ''}`);
+        }
+        return result;
+    }
+    static fromString(str, unsignedOrRadix, radix) {
+        let unsigned = false;
+        if (typeof unsignedOrRadix === 'number') {
+            (radix = unsignedOrRadix), (unsignedOrRadix = false);
+        }
+        else {
+            unsigned = !!unsignedOrRadix;
+        }
+        radix ??= 10;
+        if (str === 'NaN' && radix < 24) {
+            return Long.ZERO;
+        }
+        else if ((str === 'Infinity' || str === '+Infinity' || str === '-Infinity') && radix < 35) {
+            return Long.ZERO;
+        }
+        return Long._fromString(str, unsigned, radix);
+    }
+    static fromBytes(bytes, unsigned, le) {
+        return le ? Long.fromBytesLE(bytes, unsigned) : Long.fromBytesBE(bytes, unsigned);
+    }
+    static fromBytesLE(bytes, unsigned) {
+        return new Long(bytes[0] | (bytes[1] << 8) | (bytes[2] << 16) | (bytes[3] << 24), bytes[4] | (bytes[5] << 8) | (bytes[6] << 16) | (bytes[7] << 24), unsigned);
+    }
+    static fromBytesBE(bytes, unsigned) {
+        return new Long((bytes[4] << 24) | (bytes[5] << 16) | (bytes[6] << 8) | bytes[7], (bytes[0] << 24) | (bytes[1] << 16) | (bytes[2] << 8) | bytes[3], unsigned);
+    }
+    static isLong(value) {
+        return (value != null &&
+            typeof value === 'object' &&
+            '__isLong__' in value &&
+            value.__isLong__ === true);
+    }
+    static fromValue(val, unsigned) {
+        if (typeof val === 'number')
+            return Long.fromNumber(val, unsigned);
+        if (typeof val === 'string')
+            return Long.fromString(val, unsigned);
+        return Long.fromBits(val.low, val.high, typeof unsigned === 'boolean' ? unsigned : val.unsigned);
+    }
+    add(addend) {
+        if (!Long.isLong(addend))
+            addend = Long.fromValue(addend);
+        const a48 = this.high >>> 16;
+        const a32 = this.high & 0xffff;
+        const a16 = this.low >>> 16;
+        const a00 = this.low & 0xffff;
+        const b48 = addend.high >>> 16;
+        const b32 = addend.high & 0xffff;
+        const b16 = addend.low >>> 16;
+        const b00 = addend.low & 0xffff;
+        let c48 = 0, c32 = 0, c16 = 0, c00 = 0;
+        c00 += a00 + b00;
+        c16 += c00 >>> 16;
+        c00 &= 0xffff;
+        c16 += a16 + b16;
+        c32 += c16 >>> 16;
+        c16 &= 0xffff;
+        c32 += a32 + b32;
+        c48 += c32 >>> 16;
+        c32 &= 0xffff;
+        c48 += a48 + b48;
+        c48 &= 0xffff;
+        return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned);
+    }
+    and(other) {
+        if (!Long.isLong(other))
+            other = Long.fromValue(other);
+        return Long.fromBits(this.low & other.low, this.high & other.high, this.unsigned);
+    }
+    compare(other) {
+        if (!Long.isLong(other))
+            other = Long.fromValue(other);
+        if (this.eq(other))
+            return 0;
+        const thisNeg = this.isNegative(), otherNeg = other.isNegative();
+        if (thisNeg && !otherNeg)
+            return -1;
+        if (!thisNeg && otherNeg)
+            return 1;
+        if (!this.unsigned)
+            return this.sub(other).isNegative() ? -1 : 1;
+        return other.high >>> 0 > this.high >>> 0 ||
+            (other.high === this.high && other.low >>> 0 > this.low >>> 0)
+            ? -1
+            : 1;
+    }
+    comp(other) {
+        return this.compare(other);
+    }
+    divide(divisor) {
+        if (!Long.isLong(divisor))
+            divisor = Long.fromValue(divisor);
+        if (divisor.isZero())
+            throw new BSONError('division by zero');
+        if (wasm) {
+            if (!this.unsigned &&
+                this.high === -0x80000000 &&
+                divisor.low === -1 &&
+                divisor.high === -1) {
+                return this;
+            }
+            const low = (this.unsigned ? wasm.div_u : wasm.div_s)(this.low, this.high, divisor.low, divisor.high);
+            return Long.fromBits(low, wasm.get_high(), this.unsigned);
+        }
+        if (this.isZero())
+            return this.unsigned ? Long.UZERO : Long.ZERO;
+        let approx, rem, res;
+        if (!this.unsigned) {
+            if (this.eq(Long.MIN_VALUE)) {
+                if (divisor.eq(Long.ONE) || divisor.eq(Long.NEG_ONE))
+                    return Long.MIN_VALUE;
+                else if (divisor.eq(Long.MIN_VALUE))
+                    return Long.ONE;
+                else {
+                    const halfThis = this.shr(1);
+                    approx = halfThis.div(divisor).shl(1);
+                    if (approx.eq(Long.ZERO)) {
+                        return divisor.isNegative() ? Long.ONE : Long.NEG_ONE;
+                    }
+                    else {
+                        rem = this.sub(divisor.mul(approx));
+                        res = approx.add(rem.div(divisor));
+                        return res;
+                    }
+                }
+            }
+            else if (divisor.eq(Long.MIN_VALUE))
+                return this.unsigned ? Long.UZERO : Long.ZERO;
+            if (this.isNegative()) {
+                if (divisor.isNegative())
+                    return this.neg().div(divisor.neg());
+                return this.neg().div(divisor).neg();
+            }
+            else if (divisor.isNegative())
+                return this.div(divisor.neg()).neg();
+            res = Long.ZERO;
+        }
+        else {
+            if (!divisor.unsigned)
+                divisor = divisor.toUnsigned();
+            if (divisor.gt(this))
+                return Long.UZERO;
+            if (divisor.gt(this.shru(1)))
+                return Long.UONE;
+            res = Long.UZERO;
+        }
+        rem = this;
+        while (rem.gte(divisor)) {
+            approx = Math.max(1, Math.floor(rem.toNumber() / divisor.toNumber()));
+            const log2 = Math.ceil(Math.log(approx) / Math.LN2);
+            const delta = log2 <= 48 ? 1 : Math.pow(2, log2 - 48);
+            let approxRes = Long.fromNumber(approx);
+            let approxRem = approxRes.mul(divisor);
+            while (approxRem.isNegative() || approxRem.gt(rem)) {
+                approx -= delta;
+                approxRes = Long.fromNumber(approx, this.unsigned);
+                approxRem = approxRes.mul(divisor);
+            }
+            if (approxRes.isZero())
+                approxRes = Long.ONE;
+            res = res.add(approxRes);
+            rem = rem.sub(approxRem);
+        }
+        return res;
+    }
+    div(divisor) {
+        return this.divide(divisor);
+    }
+    equals(other) {
+        if (!Long.isLong(other))
+            other = Long.fromValue(other);
+        if (this.unsigned !== other.unsigned && this.high >>> 31 === 1 && other.high >>> 31 === 1)
+            return false;
+        return this.high === other.high && this.low === other.low;
+    }
+    eq(other) {
+        return this.equals(other);
+    }
+    getHighBits() {
+        return this.high;
+    }
+    getHighBitsUnsigned() {
+        return this.high >>> 0;
+    }
+    getLowBits() {
+        return this.low;
+    }
+    getLowBitsUnsigned() {
+        return this.low >>> 0;
+    }
+    getNumBitsAbs() {
+        if (this.isNegative()) {
+            return this.eq(Long.MIN_VALUE) ? 64 : this.neg().getNumBitsAbs();
+        }
+        const val = this.high !== 0 ? this.high : this.low;
+        let bit;
+        for (bit = 31; bit > 0; bit--)
+            if ((val & (1 << bit)) !== 0)
+                break;
+        return this.high !== 0 ? bit + 33 : bit + 1;
+    }
+    greaterThan(other) {
+        return this.comp(other) > 0;
+    }
+    gt(other) {
+        return this.greaterThan(other);
+    }
+    greaterThanOrEqual(other) {
+        return this.comp(other) >= 0;
+    }
+    gte(other) {
+        return this.greaterThanOrEqual(other);
+    }
+    ge(other) {
+        return this.greaterThanOrEqual(other);
+    }
+    isEven() {
+        return (this.low & 1) === 0;
+    }
+    isNegative() {
+        return !this.unsigned && this.high < 0;
+    }
+    isOdd() {
+        return (this.low & 1) === 1;
+    }
+    isPositive() {
+        return this.unsigned || this.high >= 0;
+    }
+    isZero() {
+        return this.high === 0 && this.low === 0;
+    }
+    lessThan(other) {
+        return this.comp(other) < 0;
+    }
+    lt(other) {
+        return this.lessThan(other);
+    }
+    lessThanOrEqual(other) {
+        return this.comp(other) <= 0;
+    }
+    lte(other) {
+        return this.lessThanOrEqual(other);
+    }
+    modulo(divisor) {
+        if (!Long.isLong(divisor))
+            divisor = Long.fromValue(divisor);
+        if (wasm) {
+            const low = (this.unsigned ? wasm.rem_u : wasm.rem_s)(this.low, this.high, divisor.low, divisor.high);
+            return Long.fromBits(low, wasm.get_high(), this.unsigned);
+        }
+        return this.sub(this.div(divisor).mul(divisor));
+    }
+    mod(divisor) {
+        return this.modulo(divisor);
+    }
+    rem(divisor) {
+        return this.modulo(divisor);
+    }
+    multiply(multiplier) {
+        if (this.isZero())
+            return Long.ZERO;
+        if (!Long.isLong(multiplier))
+            multiplier = Long.fromValue(multiplier);
+        if (wasm) {
+            const low = wasm.mul(this.low, this.high, multiplier.low, multiplier.high);
+            return Long.fromBits(low, wasm.get_high(), this.unsigned);
+        }
+        if (multiplier.isZero())
+            return Long.ZERO;
+        if (this.eq(Long.MIN_VALUE))
+            return multiplier.isOdd() ? Long.MIN_VALUE : Long.ZERO;
+        if (multiplier.eq(Long.MIN_VALUE))
+            return this.isOdd() ? Long.MIN_VALUE : Long.ZERO;
+        if (this.isNegative()) {
+            if (multiplier.isNegative())
+                return this.neg().mul(multiplier.neg());
+            else
+                return this.neg().mul(multiplier).neg();
+        }
+        else if (multiplier.isNegative())
+            return this.mul(multiplier.neg()).neg();
+        if (this.lt(Long.TWO_PWR_24) && multiplier.lt(Long.TWO_PWR_24))
+            return Long.fromNumber(this.toNumber() * multiplier.toNumber(), this.unsigned);
+        const a48 = this.high >>> 16;
+        const a32 = this.high & 0xffff;
+        const a16 = this.low >>> 16;
+        const a00 = this.low & 0xffff;
+        const b48 = multiplier.high >>> 16;
+        const b32 = multiplier.high & 0xffff;
+        const b16 = multiplier.low >>> 16;
+        const b00 = multiplier.low & 0xffff;
+        let c48 = 0, c32 = 0, c16 = 0, c00 = 0;
+        c00 += a00 * b00;
+        c16 += c00 >>> 16;
+        c00 &= 0xffff;
+        c16 += a16 * b00;
+        c32 += c16 >>> 16;
+        c16 &= 0xffff;
+        c16 += a00 * b16;
+        c32 += c16 >>> 16;
+        c16 &= 0xffff;
+        c32 += a32 * b00;
+        c48 += c32 >>> 16;
+        c32 &= 0xffff;
+        c32 += a16 * b16;
+        c48 += c32 >>> 16;
+        c32 &= 0xffff;
+        c32 += a00 * b32;
+        c48 += c32 >>> 16;
+        c32 &= 0xffff;
+        c48 += a48 * b00 + a32 * b16 + a16 * b32 + a00 * b48;
+        c48 &= 0xffff;
+        return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned);
+    }
+    mul(multiplier) {
+        return this.multiply(multiplier);
+    }
+    negate() {
+        if (!this.unsigned && this.eq(Long.MIN_VALUE))
+            return Long.MIN_VALUE;
+        return this.not().add(Long.ONE);
+    }
+    neg() {
+        return this.negate();
+    }
+    not() {
+        return Long.fromBits(~this.low, ~this.high, this.unsigned);
+    }
+    notEquals(other) {
+        return !this.equals(other);
+    }
+    neq(other) {
+        return this.notEquals(other);
+    }
+    ne(other) {
+        return this.notEquals(other);
+    }
+    or(other) {
+        if (!Long.isLong(other))
+            other = Long.fromValue(other);
+        return Long.fromBits(this.low | other.low, this.high | other.high, this.unsigned);
+    }
+    shiftLeft(numBits) {
+        if (Long.isLong(numBits))
+            numBits = numBits.toInt();
+        if ((numBits &= 63) === 0)
+            return this;
+        else if (numBits < 32)
+            return Long.fromBits(this.low << numBits, (this.high << numBits) | (this.low >>> (32 - numBits)), this.unsigned);
+        else
+            return Long.fromBits(0, this.low << (numBits - 32), this.unsigned);
+    }
+    shl(numBits) {
+        return this.shiftLeft(numBits);
+    }
+    shiftRight(numBits) {
+        if (Long.isLong(numBits))
+            numBits = numBits.toInt();
+        if ((numBits &= 63) === 0)
+            return this;
+        else if (numBits < 32)
+            return Long.fromBits((this.low >>> numBits) | (this.high << (32 - numBits)), this.high >> numBits, this.unsigned);
+        else
+            return Long.fromBits(this.high >> (numBits - 32), this.high >= 0 ? 0 : -1, this.unsigned);
+    }
+    shr(numBits) {
+        return this.shiftRight(numBits);
+    }
+    shiftRightUnsigned(numBits) {
+        if (Long.isLong(numBits))
+            numBits = numBits.toInt();
+        numBits &= 63;
+        if (numBits === 0)
+            return this;
+        else {
+            const high = this.high;
+            if (numBits < 32) {
+                const low = this.low;
+                return Long.fromBits((low >>> numBits) | (high << (32 - numBits)), high >>> numBits, this.unsigned);
+            }
+            else if (numBits === 32)
+                return Long.fromBits(high, 0, this.unsigned);
+            else
+                return Long.fromBits(high >>> (numBits - 32), 0, this.unsigned);
+        }
+    }
+    shr_u(numBits) {
+        return this.shiftRightUnsigned(numBits);
+    }
+    shru(numBits) {
+        return this.shiftRightUnsigned(numBits);
+    }
+    subtract(subtrahend) {
+        if (!Long.isLong(subtrahend))
+            subtrahend = Long.fromValue(subtrahend);
+        return this.add(subtrahend.neg());
+    }
+    sub(subtrahend) {
+        return this.subtract(subtrahend);
+    }
+    toInt() {
+        return this.unsigned ? this.low >>> 0 : this.low;
+    }
+    toNumber() {
+        if (this.unsigned)
+            return (this.high >>> 0) * TWO_PWR_32_DBL + (this.low >>> 0);
+        return this.high * TWO_PWR_32_DBL + (this.low >>> 0);
+    }
+    toBigInt() {
+        return BigInt(this.toString());
+    }
+    toBytes(le) {
+        return le ? this.toBytesLE() : this.toBytesBE();
+    }
+    toBytesLE() {
+        const hi = this.high, lo = this.low;
+        return [
+            lo & 0xff,
+            (lo >>> 8) & 0xff,
+            (lo >>> 16) & 0xff,
+            lo >>> 24,
+            hi & 0xff,
+            (hi >>> 8) & 0xff,
+            (hi >>> 16) & 0xff,
+            hi >>> 24
+        ];
+    }
+    toBytesBE() {
+        const hi = this.high, lo = this.low;
+        return [
+            hi >>> 24,
+            (hi >>> 16) & 0xff,
+            (hi >>> 8) & 0xff,
+            hi & 0xff,
+            lo >>> 24,
+            (lo >>> 16) & 0xff,
+            (lo >>> 8) & 0xff,
+            lo & 0xff
+        ];
+    }
+    toSigned() {
+        if (!this.unsigned)
+            return this;
+        return Long.fromBits(this.low, this.high, false);
+    }
+    toString(radix) {
+        radix = radix || 10;
+        if (radix < 2 || 36 < radix)
+            throw new BSONError('radix');
+        if (this.isZero())
+            return '0';
+        if (this.isNegative()) {
+            if (this.eq(Long.MIN_VALUE)) {
+                const radixLong = Long.fromNumber(radix), div = this.div(radixLong), rem1 = div.mul(radixLong).sub(this);
+                return div.toString(radix) + rem1.toInt().toString(radix);
+            }
+            else
+                return '-' + this.neg().toString(radix);
+        }
+        const radixToPower = Long.fromNumber(Math.pow(radix, 6), this.unsigned);
+        let rem = this;
+        let result = '';
+        while (true) {
+            const remDiv = rem.div(radixToPower);
+            const intval = rem.sub(remDiv.mul(radixToPower)).toInt() >>> 0;
+            let digits = intval.toString(radix);
+            rem = remDiv;
+            if (rem.isZero()) {
+                return digits + result;
+            }
+            else {
+                while (digits.length < 6)
+                    digits = '0' + digits;
+                result = '' + digits + result;
+            }
+        }
+    }
+    toUnsigned() {
+        if (this.unsigned)
+            return this;
+        return Long.fromBits(this.low, this.high, true);
+    }
+    xor(other) {
+        if (!Long.isLong(other))
+            other = Long.fromValue(other);
+        return Long.fromBits(this.low ^ other.low, this.high ^ other.high, this.unsigned);
+    }
+    eqz() {
+        return this.isZero();
+    }
+    le(other) {
+        return this.lessThanOrEqual(other);
+    }
+    toExtendedJSON(options) {
+        if (options && options.relaxed)
+            return this.toNumber();
+        return { $numberLong: this.toString() };
+    }
+    static fromExtendedJSON(doc, options) {
+        const { useBigInt64 = false, relaxed = true } = { ...options };
+        if (doc.$numberLong.length > MAX_INT64_STRING_LENGTH) {
+            throw new BSONError('$numberLong string is too long');
+        }
+        if (!DECIMAL_REG_EX.test(doc.$numberLong)) {
+            throw new BSONError(`$numberLong string "${doc.$numberLong}" is in an invalid format`);
+        }
+        if (useBigInt64) {
+            const bigIntResult = BigInt(doc.$numberLong);
+            return BigInt.asIntN(64, bigIntResult);
+        }
+        const longResult = Long.fromString(doc.$numberLong);
+        if (relaxed) {
+            return longResult.toNumber();
+        }
+        return longResult;
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        const longVal = inspect(this.toString(), options);
+        const unsignedVal = this.unsigned ? `, ${inspect(this.unsigned, options)}` : '';
+        return `new Long(${longVal}${unsignedVal})`;
+    }
+}
+Long.TWO_PWR_24 = Long.fromInt(TWO_PWR_24_DBL);
+Long.MAX_UNSIGNED_VALUE = Long.fromBits(0xffffffff | 0, 0xffffffff | 0, true);
+Long.ZERO = Long.fromInt(0);
+Long.UZERO = Long.fromInt(0, true);
+Long.ONE = Long.fromInt(1);
+Long.UONE = Long.fromInt(1, true);
+Long.NEG_ONE = Long.fromInt(-1);
+Long.MAX_VALUE = Long.fromBits(0xffffffff | 0, 0x7fffffff | 0, false);
+Long.MIN_VALUE = Long.fromBits(0, 0x80000000 | 0, false);
+
+const PARSE_STRING_REGEXP = /^(\+|-)?(\d+|(\d*\.\d*))?(E|e)?([-+])?(\d+)?$/;
+const PARSE_INF_REGEXP = /^(\+|-)?(Infinity|inf)$/i;
+const PARSE_NAN_REGEXP = /^(\+|-)?NaN$/i;
+const EXPONENT_MAX = 6111;
+const EXPONENT_MIN = -6176;
+const EXPONENT_BIAS = 6176;
+const MAX_DIGITS = 34;
+const NAN_BUFFER = ByteUtils.fromNumberArray([
+    0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+].reverse());
+const INF_NEGATIVE_BUFFER = ByteUtils.fromNumberArray([
+    0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+].reverse());
+const INF_POSITIVE_BUFFER = ByteUtils.fromNumberArray([
+    0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+].reverse());
+const EXPONENT_REGEX = /^([-+])?(\d+)?$/;
+const COMBINATION_MASK = 0x1f;
+const EXPONENT_MASK = 0x3fff;
+const COMBINATION_INFINITY = 30;
+const COMBINATION_NAN = 31;
+function isDigit(value) {
+    return !isNaN(parseInt(value, 10));
+}
+function divideu128(value) {
+    const DIVISOR = Long.fromNumber(1000 * 1000 * 1000);
+    let _rem = Long.fromNumber(0);
+    if (!value.parts[0] && !value.parts[1] && !value.parts[2] && !value.parts[3]) {
+        return { quotient: value, rem: _rem };
+    }
+    for (let i = 0; i <= 3; i++) {
+        _rem = _rem.shiftLeft(32);
+        _rem = _rem.add(new Long(value.parts[i], 0));
+        value.parts[i] = _rem.div(DIVISOR).low;
+        _rem = _rem.modulo(DIVISOR);
+    }
+    return { quotient: value, rem: _rem };
+}
+function multiply64x2(left, right) {
+    if (!left && !right) {
+        return { high: Long.fromNumber(0), low: Long.fromNumber(0) };
+    }
+    const leftHigh = left.shiftRightUnsigned(32);
+    const leftLow = new Long(left.getLowBits(), 0);
+    const rightHigh = right.shiftRightUnsigned(32);
+    const rightLow = new Long(right.getLowBits(), 0);
+    let productHigh = leftHigh.multiply(rightHigh);
+    let productMid = leftHigh.multiply(rightLow);
+    const productMid2 = leftLow.multiply(rightHigh);
+    let productLow = leftLow.multiply(rightLow);
+    productHigh = productHigh.add(productMid.shiftRightUnsigned(32));
+    productMid = new Long(productMid.getLowBits(), 0)
+        .add(productMid2)
+        .add(productLow.shiftRightUnsigned(32));
+    productHigh = productHigh.add(productMid.shiftRightUnsigned(32));
+    productLow = productMid.shiftLeft(32).add(new Long(productLow.getLowBits(), 0));
+    return { high: productHigh, low: productLow };
+}
+function lessThan(left, right) {
+    const uhleft = left.high >>> 0;
+    const uhright = right.high >>> 0;
+    if (uhleft < uhright) {
+        return true;
+    }
+    else if (uhleft === uhright) {
+        const ulleft = left.low >>> 0;
+        const ulright = right.low >>> 0;
+        if (ulleft < ulright)
+            return true;
+    }
+    return false;
+}
+function invalidErr(string, message) {
+    throw new BSONError(`"${string}" is not a valid Decimal128 string - ${message}`);
+}
+class Decimal128 extends BSONValue {
+    get _bsontype() {
+        return 'Decimal128';
+    }
+    constructor(bytes) {
+        super();
+        if (typeof bytes === 'string') {
+            this.bytes = Decimal128.fromString(bytes).bytes;
+        }
+        else if (bytes instanceof Uint8Array || isUint8Array(bytes)) {
+            if (bytes.byteLength !== 16) {
+                throw new BSONError('Decimal128 must take a Buffer of 16 bytes');
+            }
+            this.bytes = bytes;
+        }
+        else {
+            throw new BSONError('Decimal128 must take a Buffer or string');
+        }
+    }
+    static fromString(representation) {
+        return Decimal128._fromString(representation, { allowRounding: false });
+    }
+    static fromStringWithRounding(representation) {
+        return Decimal128._fromString(representation, { allowRounding: true });
+    }
+    static _fromString(representation, options) {
+        let isNegative = false;
+        let sawSign = false;
+        let sawRadix = false;
+        let foundNonZero = false;
+        let significantDigits = 0;
+        let nDigitsRead = 0;
+        let nDigits = 0;
+        let radixPosition = 0;
+        let firstNonZero = 0;
+        const digits = [0];
+        let nDigitsStored = 0;
+        let digitsInsert = 0;
+        let lastDigit = 0;
+        let exponent = 0;
+        let significandHigh = new Long(0, 0);
+        let significandLow = new Long(0, 0);
+        let biasedExponent = 0;
+        let index = 0;
+        if (representation.length >= 7000) {
+            throw new BSONError('' + representation + ' not a valid Decimal128 string');
+        }
+        const stringMatch = representation.match(PARSE_STRING_REGEXP);
+        const infMatch = representation.match(PARSE_INF_REGEXP);
+        const nanMatch = representation.match(PARSE_NAN_REGEXP);
+        if ((!stringMatch && !infMatch && !nanMatch) || representation.length === 0) {
+            throw new BSONError('' + representation + ' not a valid Decimal128 string');
+        }
+        if (stringMatch) {
+            const unsignedNumber = stringMatch[2];
+            const e = stringMatch[4];
+            const expSign = stringMatch[5];
+            const expNumber = stringMatch[6];
+            if (e && expNumber === undefined)
+                invalidErr(representation, 'missing exponent power');
+            if (e && unsignedNumber === undefined)
+                invalidErr(representation, 'missing exponent base');
+            if (e === undefined && (expSign || expNumber)) {
+                invalidErr(representation, 'missing e before exponent');
+            }
+        }
+        if (representation[index] === '+' || representation[index] === '-') {
+            sawSign = true;
+            isNegative = representation[index++] === '-';
+        }
+        if (!isDigit(representation[index]) && representation[index] !== '.') {
+            if (representation[index] === 'i' || representation[index] === 'I') {
+                return new Decimal128(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER);
+            }
+            else if (representation[index] === 'N') {
+                return new Decimal128(NAN_BUFFER);
+            }
+        }
+        while (isDigit(representation[index]) || representation[index] === '.') {
+            if (representation[index] === '.') {
+                if (sawRadix)
+                    invalidErr(representation, 'contains multiple periods');
+                sawRadix = true;
+                index = index + 1;
+                continue;
+            }
+            if (nDigitsStored < MAX_DIGITS) {
+                if (representation[index] !== '0' || foundNonZero) {
+                    if (!foundNonZero) {
+                        firstNonZero = nDigitsRead;
+                    }
+                    foundNonZero = true;
+                    digits[digitsInsert++] = parseInt(representation[index], 10);
+                    nDigitsStored = nDigitsStored + 1;
+                }
+            }
+            if (foundNonZero)
+                nDigits = nDigits + 1;
+            if (sawRadix)
+                radixPosition = radixPosition + 1;
+            nDigitsRead = nDigitsRead + 1;
+            index = index + 1;
+        }
+        if (sawRadix && !nDigitsRead)
+            throw new BSONError('' + representation + ' not a valid Decimal128 string');
+        if (representation[index] === 'e' || representation[index] === 'E') {
+            const match = representation.substr(++index).match(EXPONENT_REGEX);
+            if (!match || !match[2])
+                return new Decimal128(NAN_BUFFER);
+            exponent = parseInt(match[0], 10);
+            index = index + match[0].length;
+        }
+        if (representation[index])
+            return new Decimal128(NAN_BUFFER);
+        if (!nDigitsStored) {
+            digits[0] = 0;
+            nDigits = 1;
+            nDigitsStored = 1;
+            significantDigits = 0;
+        }
+        else {
+            lastDigit = nDigitsStored - 1;
+            significantDigits = nDigits;
+            if (significantDigits !== 1) {
+                while (representation[firstNonZero + significantDigits - 1 + Number(sawSign) + Number(sawRadix)] === '0') {
+                    significantDigits = significantDigits - 1;
+                }
+            }
+        }
+        if (exponent <= radixPosition && radixPosition > exponent + (1 << 14)) {
+            exponent = EXPONENT_MIN;
+        }
+        else {
+            exponent = exponent - radixPosition;
+        }
+        while (exponent > EXPONENT_MAX) {
+            lastDigit = lastDigit + 1;
+            if (lastDigit >= MAX_DIGITS) {
+                if (significantDigits === 0) {
+                    exponent = EXPONENT_MAX;
+                    break;
+                }
+                invalidErr(representation, 'overflow');
+            }
+            exponent = exponent - 1;
+        }
+        if (options.allowRounding) {
+            while (exponent < EXPONENT_MIN || nDigitsStored < nDigits) {
+                if (lastDigit === 0 && significantDigits < nDigitsStored) {
+                    exponent = EXPONENT_MIN;
+                    significantDigits = 0;
+                    break;
+                }
+                if (nDigitsStored < nDigits) {
+                    nDigits = nDigits - 1;
+                }
+                else {
+                    lastDigit = lastDigit - 1;
+                }
+                if (exponent < EXPONENT_MAX) {
+                    exponent = exponent + 1;
+                }
+                else {
+                    const digitsString = digits.join('');
+                    if (digitsString.match(/^0+$/)) {
+                        exponent = EXPONENT_MAX;
+                        break;
+                    }
+                    invalidErr(representation, 'overflow');
+                }
+            }
+            if (lastDigit + 1 < significantDigits) {
+                let endOfString = nDigitsRead;
+                if (sawRadix) {
+                    firstNonZero = firstNonZero + 1;
+                    endOfString = endOfString + 1;
+                }
+                if (sawSign) {
+                    firstNonZero = firstNonZero + 1;
+                    endOfString = endOfString + 1;
+                }
+                const roundDigit = parseInt(representation[firstNonZero + lastDigit + 1], 10);
+                let roundBit = 0;
+                if (roundDigit >= 5) {
+                    roundBit = 1;
+                    if (roundDigit === 5) {
+                        roundBit = digits[lastDigit] % 2 === 1 ? 1 : 0;
+                        for (let i = firstNonZero + lastDigit + 2; i < endOfString; i++) {
+                            if (parseInt(representation[i], 10)) {
+                                roundBit = 1;
+                                break;
+                            }
+                        }
+                    }
+                }
+                if (roundBit) {
+                    let dIdx = lastDigit;
+                    for (; dIdx >= 0; dIdx--) {
+                        if (++digits[dIdx] > 9) {
+                            digits[dIdx] = 0;
+                            if (dIdx === 0) {
+                                if (exponent < EXPONENT_MAX) {
+                                    exponent = exponent + 1;
+                                    digits[dIdx] = 1;
+                                }
+                                else {
+                                    return new Decimal128(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER);
+                                }
+                            }
+                        }
+                        else {
+                            break;
+                        }
+                    }
+                }
+            }
+        }
+        else {
+            while (exponent < EXPONENT_MIN || nDigitsStored < nDigits) {
+                if (lastDigit === 0) {
+                    if (significantDigits === 0) {
+                        exponent = EXPONENT_MIN;
+                        break;
+                    }
+                    invalidErr(representation, 'exponent underflow');
+                }
+                if (nDigitsStored < nDigits) {
+                    if (representation[nDigits - 1 + Number(sawSign) + Number(sawRadix)] !== '0' &&
+                        significantDigits !== 0) {
+                        invalidErr(representation, 'inexact rounding');
+                    }
+                    nDigits = nDigits - 1;
+                }
+                else {
+                    if (digits[lastDigit] !== 0) {
+                        invalidErr(representation, 'inexact rounding');
+                    }
+                    lastDigit = lastDigit - 1;
+                }
+                if (exponent < EXPONENT_MAX) {
+                    exponent = exponent + 1;
+                }
+                else {
+                    invalidErr(representation, 'overflow');
+                }
+            }
+            if (lastDigit + 1 < significantDigits) {
+                if (sawRadix) {
+                    firstNonZero = firstNonZero + 1;
+                }
+                if (sawSign) {
+                    firstNonZero = firstNonZero + 1;
+                }
+                const roundDigit = parseInt(representation[firstNonZero + lastDigit + 1], 10);
+                if (roundDigit !== 0) {
+                    invalidErr(representation, 'inexact rounding');
+                }
+            }
+        }
+        significandHigh = Long.fromNumber(0);
+        significandLow = Long.fromNumber(0);
+        if (significantDigits === 0) {
+            significandHigh = Long.fromNumber(0);
+            significandLow = Long.fromNumber(0);
+        }
+        else if (lastDigit < 17) {
+            let dIdx = 0;
+            significandLow = Long.fromNumber(digits[dIdx++]);
+            significandHigh = new Long(0, 0);
+            for (; dIdx <= lastDigit; dIdx++) {
+                significandLow = significandLow.multiply(Long.fromNumber(10));
+                significandLow = significandLow.add(Long.fromNumber(digits[dIdx]));
+            }
+        }
+        else {
+            let dIdx = 0;
+            significandHigh = Long.fromNumber(digits[dIdx++]);
+            for (; dIdx <= lastDigit - 17; dIdx++) {
+                significandHigh = significandHigh.multiply(Long.fromNumber(10));
+                significandHigh = significandHigh.add(Long.fromNumber(digits[dIdx]));
+            }
+            significandLow = Long.fromNumber(digits[dIdx++]);
+            for (; dIdx <= lastDigit; dIdx++) {
+                significandLow = significandLow.multiply(Long.fromNumber(10));
+                significandLow = significandLow.add(Long.fromNumber(digits[dIdx]));
+            }
+        }
+        const significand = multiply64x2(significandHigh, Long.fromString('100000000000000000'));
+        significand.low = significand.low.add(significandLow);
+        if (lessThan(significand.low, significandLow)) {
+            significand.high = significand.high.add(Long.fromNumber(1));
+        }
+        biasedExponent = exponent + EXPONENT_BIAS;
+        const dec = { low: Long.fromNumber(0), high: Long.fromNumber(0) };
+        if (significand.high.shiftRightUnsigned(49).and(Long.fromNumber(1)).equals(Long.fromNumber(1))) {
+            dec.high = dec.high.or(Long.fromNumber(0x3).shiftLeft(61));
+            dec.high = dec.high.or(Long.fromNumber(biasedExponent).and(Long.fromNumber(0x3fff).shiftLeft(47)));
+            dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x7fffffffffff)));
+        }
+        else {
+            dec.high = dec.high.or(Long.fromNumber(biasedExponent & 0x3fff).shiftLeft(49));
+            dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x1ffffffffffff)));
+        }
+        dec.low = significand.low;
+        if (isNegative) {
+            dec.high = dec.high.or(Long.fromString('9223372036854775808'));
+        }
+        const buffer = ByteUtils.allocateUnsafe(16);
+        index = 0;
+        buffer[index++] = dec.low.low & 0xff;
+        buffer[index++] = (dec.low.low >> 8) & 0xff;
+        buffer[index++] = (dec.low.low >> 16) & 0xff;
+        buffer[index++] = (dec.low.low >> 24) & 0xff;
+        buffer[index++] = dec.low.high & 0xff;
+        buffer[index++] = (dec.low.high >> 8) & 0xff;
+        buffer[index++] = (dec.low.high >> 16) & 0xff;
+        buffer[index++] = (dec.low.high >> 24) & 0xff;
+        buffer[index++] = dec.high.low & 0xff;
+        buffer[index++] = (dec.high.low >> 8) & 0xff;
+        buffer[index++] = (dec.high.low >> 16) & 0xff;
+        buffer[index++] = (dec.high.low >> 24) & 0xff;
+        buffer[index++] = dec.high.high & 0xff;
+        buffer[index++] = (dec.high.high >> 8) & 0xff;
+        buffer[index++] = (dec.high.high >> 16) & 0xff;
+        buffer[index++] = (dec.high.high >> 24) & 0xff;
+        return new Decimal128(buffer);
+    }
+    toString() {
+        let biased_exponent;
+        let significand_digits = 0;
+        const significand = new Array(36);
+        for (let i = 0; i < significand.length; i++)
+            significand[i] = 0;
+        let index = 0;
+        let is_zero = false;
+        let significand_msb;
+        let significand128 = { parts: [0, 0, 0, 0] };
+        let j, k;
+        const string = [];
+        index = 0;
+        const buffer = this.bytes;
+        const low = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
+        const midl = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
+        const midh = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
+        const high = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
+        index = 0;
+        const dec = {
+            low: new Long(low, midl),
+            high: new Long(midh, high)
+        };
+        if (dec.high.lessThan(Long.ZERO)) {
+            string.push('-');
+        }
+        const combination = (high >> 26) & COMBINATION_MASK;
+        if (combination >> 3 === 3) {
+            if (combination === COMBINATION_INFINITY) {
+                return string.join('') + 'Infinity';
+            }
+            else if (combination === COMBINATION_NAN) {
+                return 'NaN';
+            }
+            else {
+                biased_exponent = (high >> 15) & EXPONENT_MASK;
+                significand_msb = 0x08 + ((high >> 14) & 0x01);
+            }
+        }
+        else {
+            significand_msb = (high >> 14) & 0x07;
+            biased_exponent = (high >> 17) & EXPONENT_MASK;
+        }
+        const exponent = biased_exponent - EXPONENT_BIAS;
+        significand128.parts[0] = (high & 0x3fff) + ((significand_msb & 0xf) << 14);
+        significand128.parts[1] = midh;
+        significand128.parts[2] = midl;
+        significand128.parts[3] = low;
+        if (significand128.parts[0] === 0 &&
+            significand128.parts[1] === 0 &&
+            significand128.parts[2] === 0 &&
+            significand128.parts[3] === 0) {
+            is_zero = true;
+        }
+        else {
+            for (k = 3; k >= 0; k--) {
+                let least_digits = 0;
+                const result = divideu128(significand128);
+                significand128 = result.quotient;
+                least_digits = result.rem.low;
+                if (!least_digits)
+                    continue;
+                for (j = 8; j >= 0; j--) {
+                    significand[k * 9 + j] = least_digits % 10;
+                    least_digits = Math.floor(least_digits / 10);
+                }
+            }
+        }
+        if (is_zero) {
+            significand_digits = 1;
+            significand[index] = 0;
+        }
+        else {
+            significand_digits = 36;
+            while (!significand[index]) {
+                significand_digits = significand_digits - 1;
+                index = index + 1;
+            }
+        }
+        const scientific_exponent = significand_digits - 1 + exponent;
+        if (scientific_exponent >= 34 || scientific_exponent <= -7 || exponent > 0) {
+            if (significand_digits > 34) {
+                string.push(`${0}`);
+                if (exponent > 0)
+                    string.push(`E+${exponent}`);
+                else if (exponent < 0)
+                    string.push(`E${exponent}`);
+                return string.join('');
+            }
+            string.push(`${significand[index++]}`);
+            significand_digits = significand_digits - 1;
+            if (significand_digits) {
+                string.push('.');
+            }
+            for (let i = 0; i < significand_digits; i++) {
+                string.push(`${significand[index++]}`);
+            }
+            string.push('E');
+            if (scientific_exponent > 0) {
+                string.push(`+${scientific_exponent}`);
+            }
+            else {
+                string.push(`${scientific_exponent}`);
+            }
+        }
+        else {
+            if (exponent >= 0) {
+                for (let i = 0; i < significand_digits; i++) {
+                    string.push(`${significand[index++]}`);
+                }
+            }
+            else {
+                let radix_position = significand_digits + exponent;
+                if (radix_position > 0) {
+                    for (let i = 0; i < radix_position; i++) {
+                        string.push(`${significand[index++]}`);
+                    }
+                }
+                else {
+                    string.push('0');
+                }
+                string.push('.');
+                while (radix_position++ < 0) {
+                    string.push('0');
+                }
+                for (let i = 0; i < significand_digits - Math.max(radix_position - 1, 0); i++) {
+                    string.push(`${significand[index++]}`);
+                }
+            }
+        }
+        return string.join('');
+    }
+    toJSON() {
+        return { $numberDecimal: this.toString() };
+    }
+    toExtendedJSON() {
+        return { $numberDecimal: this.toString() };
+    }
+    static fromExtendedJSON(doc) {
+        return Decimal128.fromString(doc.$numberDecimal);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        const d128string = inspect(this.toString(), options);
+        return `new Decimal128(${d128string})`;
+    }
+}
+
+class Double extends BSONValue {
+    get _bsontype() {
+        return 'Double';
+    }
+    constructor(value) {
+        super();
+        if (value instanceof Number) {
+            value = value.valueOf();
+        }
+        this.value = +value;
+    }
+    static fromString(value) {
+        const coercedValue = Number(value);
+        if (value === 'NaN')
+            return new Double(NaN);
+        if (value === 'Infinity')
+            return new Double(Infinity);
+        if (value === '-Infinity')
+            return new Double(-Infinity);
+        if (!Number.isFinite(coercedValue)) {
+            throw new BSONError(`Input: ${value} is not representable as a Double`);
+        }
+        if (value.trim() !== value) {
+            throw new BSONError(`Input: '${value}' contains whitespace`);
+        }
+        if (value === '') {
+            throw new BSONError(`Input is an empty string`);
+        }
+        if (/[^-0-9.+eE]/.test(value)) {
+            throw new BSONError(`Input: '${value}' is not in decimal or exponential notation`);
+        }
+        return new Double(coercedValue);
+    }
+    valueOf() {
+        return this.value;
+    }
+    toJSON() {
+        return this.value;
+    }
+    toString(radix) {
+        return this.value.toString(radix);
+    }
+    toExtendedJSON(options) {
+        if (options && (options.legacy || (options.relaxed && isFinite(this.value)))) {
+            return this.value;
+        }
+        if (Object.is(Math.sign(this.value), -0)) {
+            return { $numberDouble: '-0.0' };
+        }
+        return {
+            $numberDouble: Number.isInteger(this.value) ? this.value.toFixed(1) : this.value.toString()
+        };
+    }
+    static fromExtendedJSON(doc, options) {
+        const doubleValue = parseFloat(doc.$numberDouble);
+        return options && options.relaxed ? doubleValue : new Double(doubleValue);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        return `new Double(${inspect(this.value, options)})`;
+    }
+}
+
+class Int32 extends BSONValue {
+    get _bsontype() {
+        return 'Int32';
+    }
+    constructor(value) {
+        super();
+        if (value instanceof Number) {
+            value = value.valueOf();
+        }
+        this.value = +value | 0;
+    }
+    static fromString(value) {
+        const cleanedValue = removeLeadingZerosAndExplicitPlus(value);
+        const coercedValue = Number(value);
+        if (BSON_INT32_MAX < coercedValue) {
+            throw new BSONError(`Input: '${value}' is larger than the maximum value for Int32`);
+        }
+        else if (BSON_INT32_MIN > coercedValue) {
+            throw new BSONError(`Input: '${value}' is smaller than the minimum value for Int32`);
+        }
+        else if (!Number.isSafeInteger(coercedValue)) {
+            throw new BSONError(`Input: '${value}' is not a safe integer`);
+        }
+        else if (coercedValue.toString() !== cleanedValue) {
+            throw new BSONError(`Input: '${value}' is not a valid Int32 string`);
+        }
+        return new Int32(coercedValue);
+    }
+    valueOf() {
+        return this.value;
+    }
+    toString(radix) {
+        return this.value.toString(radix);
+    }
+    toJSON() {
+        return this.value;
+    }
+    toExtendedJSON(options) {
+        if (options && (options.relaxed || options.legacy))
+            return this.value;
+        return { $numberInt: this.value.toString() };
+    }
+    static fromExtendedJSON(doc, options) {
+        return options && options.relaxed ? parseInt(doc.$numberInt, 10) : new Int32(doc.$numberInt);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        return `new Int32(${inspect(this.value, options)})`;
+    }
+}
+
+class MaxKey extends BSONValue {
+    get _bsontype() {
+        return 'MaxKey';
+    }
+    toExtendedJSON() {
+        return { $maxKey: 1 };
+    }
+    static fromExtendedJSON() {
+        return new MaxKey();
+    }
+    inspect() {
+        return 'new MaxKey()';
+    }
+}
+
+class MinKey extends BSONValue {
+    get _bsontype() {
+        return 'MinKey';
+    }
+    toExtendedJSON() {
+        return { $minKey: 1 };
+    }
+    static fromExtendedJSON() {
+        return new MinKey();
+    }
+    inspect() {
+        return 'new MinKey()';
+    }
+}
+
+let PROCESS_UNIQUE = null;
+const __idCache = new WeakMap();
+class ObjectId extends BSONValue {
+    get _bsontype() {
+        return 'ObjectId';
+    }
+    constructor(inputId) {
+        super();
+        let workingId;
+        if (typeof inputId === 'object' && inputId && 'id' in inputId) {
+            if (typeof inputId.id !== 'string' && !ArrayBuffer.isView(inputId.id)) {
+                throw new BSONError('Argument passed in must have an id that is of type string or Buffer');
+            }
+            if ('toHexString' in inputId && typeof inputId.toHexString === 'function') {
+                workingId = ByteUtils.fromHex(inputId.toHexString());
+            }
+            else {
+                workingId = inputId.id;
+            }
+        }
+        else {
+            workingId = inputId;
+        }
+        if (workingId == null || typeof workingId === 'number') {
+            this.buffer = ObjectId.generate(typeof workingId === 'number' ? workingId : undefined);
+        }
+        else if (ArrayBuffer.isView(workingId) && workingId.byteLength === 12) {
+            this.buffer = ByteUtils.toLocalBufferType(workingId);
+        }
+        else if (typeof workingId === 'string') {
+            if (ObjectId.validateHexString(workingId)) {
+                this.buffer = ByteUtils.fromHex(workingId);
+                if (ObjectId.cacheHexString) {
+                    __idCache.set(this, workingId);
+                }
+            }
+            else {
+                throw new BSONError('input must be a 24 character hex string, 12 byte Uint8Array, or an integer');
+            }
+        }
+        else {
+            throw new BSONError('Argument passed in does not match the accepted types');
+        }
+    }
+    get id() {
+        return this.buffer;
+    }
+    set id(value) {
+        this.buffer = value;
+        if (ObjectId.cacheHexString) {
+            __idCache.set(this, ByteUtils.toHex(value));
+        }
+    }
+    static validateHexString(string) {
+        if (string?.length !== 24)
+            return false;
+        for (let i = 0; i < 24; i++) {
+            const char = string.charCodeAt(i);
+            if ((char >= 48 && char <= 57) ||
+                (char >= 97 && char <= 102) ||
+                (char >= 65 && char <= 70)) {
+                continue;
+            }
+            return false;
+        }
+        return true;
+    }
+    toHexString() {
+        if (ObjectId.cacheHexString) {
+            const __id = __idCache.get(this);
+            if (__id)
+                return __id;
+        }
+        const hexString = ByteUtils.toHex(this.id);
+        if (ObjectId.cacheHexString) {
+            __idCache.set(this, hexString);
+        }
+        return hexString;
+    }
+    static getInc() {
+        return (ObjectId.index = (ObjectId.index + 1) % 0xffffff);
+    }
+    static generate(time) {
+        if ('number' !== typeof time) {
+            time = Math.floor(Date.now() / 1000);
+        }
+        const inc = ObjectId.getInc();
+        const buffer = ByteUtils.allocateUnsafe(12);
+        NumberUtils.setInt32BE(buffer, 0, time);
+        if (PROCESS_UNIQUE === null) {
+            PROCESS_UNIQUE = ByteUtils.randomBytes(5);
+        }
+        buffer[4] = PROCESS_UNIQUE[0];
+        buffer[5] = PROCESS_UNIQUE[1];
+        buffer[6] = PROCESS_UNIQUE[2];
+        buffer[7] = PROCESS_UNIQUE[3];
+        buffer[8] = PROCESS_UNIQUE[4];
+        buffer[11] = inc & 0xff;
+        buffer[10] = (inc >> 8) & 0xff;
+        buffer[9] = (inc >> 16) & 0xff;
+        return buffer;
+    }
+    toString(encoding) {
+        if (encoding === 'base64')
+            return ByteUtils.toBase64(this.id);
+        if (encoding === 'hex')
+            return this.toHexString();
+        return this.toHexString();
+    }
+    toJSON() {
+        return this.toHexString();
+    }
+    static is(variable) {
+        return (variable != null &&
+            typeof variable === 'object' &&
+            '_bsontype' in variable &&
+            variable._bsontype === 'ObjectId');
+    }
+    equals(otherId) {
+        if (otherId === undefined || otherId === null) {
+            return false;
+        }
+        if (ObjectId.is(otherId)) {
+            return (this.buffer[11] === otherId.buffer[11] && ByteUtils.equals(this.buffer, otherId.buffer));
+        }
+        if (typeof otherId === 'string') {
+            return otherId.toLowerCase() === this.toHexString();
+        }
+        if (typeof otherId === 'object' && typeof otherId.toHexString === 'function') {
+            const otherIdString = otherId.toHexString();
+            const thisIdString = this.toHexString();
+            return typeof otherIdString === 'string' && otherIdString.toLowerCase() === thisIdString;
+        }
+        return false;
+    }
+    getTimestamp() {
+        const timestamp = new Date();
+        const time = NumberUtils.getUint32BE(this.buffer, 0);
+        timestamp.setTime(Math.floor(time) * 1000);
+        return timestamp;
+    }
+    static createPk() {
+        return new ObjectId();
+    }
+    serializeInto(uint8array, index) {
+        uint8array[index] = this.buffer[0];
+        uint8array[index + 1] = this.buffer[1];
+        uint8array[index + 2] = this.buffer[2];
+        uint8array[index + 3] = this.buffer[3];
+        uint8array[index + 4] = this.buffer[4];
+        uint8array[index + 5] = this.buffer[5];
+        uint8array[index + 6] = this.buffer[6];
+        uint8array[index + 7] = this.buffer[7];
+        uint8array[index + 8] = this.buffer[8];
+        uint8array[index + 9] = this.buffer[9];
+        uint8array[index + 10] = this.buffer[10];
+        uint8array[index + 11] = this.buffer[11];
+        return 12;
+    }
+    static createFromTime(time) {
+        const buffer = ByteUtils.allocate(12);
+        for (let i = 11; i >= 4; i--)
+            buffer[i] = 0;
+        NumberUtils.setInt32BE(buffer, 0, time);
+        return new ObjectId(buffer);
+    }
+    static createFromHexString(hexString) {
+        if (hexString?.length !== 24) {
+            throw new BSONError('hex string must be 24 characters');
+        }
+        return new ObjectId(ByteUtils.fromHex(hexString));
+    }
+    static createFromBase64(base64) {
+        if (base64?.length !== 16) {
+            throw new BSONError('base64 string must be 16 characters');
+        }
+        return new ObjectId(ByteUtils.fromBase64(base64));
+    }
+    static isValid(id) {
+        if (id == null)
+            return false;
+        if (typeof id === 'string')
+            return ObjectId.validateHexString(id);
+        try {
+            new ObjectId(id);
+            return true;
+        }
+        catch {
+            return false;
+        }
+    }
+    toExtendedJSON() {
+        if (this.toHexString)
+            return { $oid: this.toHexString() };
+        return { $oid: this.toString('hex') };
+    }
+    static fromExtendedJSON(doc) {
+        return new ObjectId(doc.$oid);
+    }
+    isCached() {
+        return ObjectId.cacheHexString && __idCache.has(this);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        return `new ObjectId(${inspect(this.toHexString(), options)})`;
+    }
+}
+ObjectId.index = Math.floor(Math.random() * 0xffffff);
+
+function internalCalculateObjectSize(object, serializeFunctions, ignoreUndefined) {
+    let totalLength = 4 + 1;
+    if (Array.isArray(object)) {
+        for (let i = 0; i < object.length; i++) {
+            totalLength += calculateElement(i.toString(), object[i], serializeFunctions, true, ignoreUndefined);
+        }
+    }
+    else {
+        if (typeof object?.toBSON === 'function') {
+            object = object.toBSON();
+        }
+        for (const key of Object.keys(object)) {
+            totalLength += calculateElement(key, object[key], serializeFunctions, false, ignoreUndefined);
+        }
+    }
+    return totalLength;
+}
+function calculateElement(name, value, serializeFunctions = false, isArray = false, ignoreUndefined = false) {
+    if (typeof value?.toBSON === 'function') {
+        value = value.toBSON();
+    }
+    switch (typeof value) {
+        case 'string':
+            return 1 + ByteUtils.utf8ByteLength(name) + 1 + 4 + ByteUtils.utf8ByteLength(value) + 1;
+        case 'number':
+            if (Math.floor(value) === value &&
+                value >= JS_INT_MIN &&
+                value <= JS_INT_MAX) {
+                if (value >= BSON_INT32_MIN && value <= BSON_INT32_MAX) {
+                    return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (4 + 1);
+                }
+                else {
+                    return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+                }
+            }
+            else {
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+            }
+        case 'undefined':
+            if (isArray || !ignoreUndefined)
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + 1;
+            return 0;
+        case 'boolean':
+            return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (1 + 1);
+        case 'object':
+            if (value != null &&
+                typeof value._bsontype === 'string' &&
+                value[BSON_VERSION_SYMBOL] !== BSON_MAJOR_VERSION) {
+                throw new BSONVersionError();
+            }
+            else if (value == null || value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') {
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + 1;
+            }
+            else if (value._bsontype === 'ObjectId') {
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (12 + 1);
+            }
+            else if (value instanceof Date || isDate(value)) {
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+            }
+            else if (ArrayBuffer.isView(value) ||
+                value instanceof ArrayBuffer ||
+                isAnyArrayBuffer(value)) {
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (1 + 4 + 1) + value.byteLength);
+            }
+            else if (value._bsontype === 'Long' ||
+                value._bsontype === 'Double' ||
+                value._bsontype === 'Timestamp') {
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+            }
+            else if (value._bsontype === 'Decimal128') {
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (16 + 1);
+            }
+            else if (value._bsontype === 'Code') {
+                if (value.scope != null && Object.keys(value.scope).length > 0) {
+                    return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                        1 +
+                        4 +
+                        4 +
+                        ByteUtils.utf8ByteLength(value.code.toString()) +
+                        1 +
+                        internalCalculateObjectSize(value.scope, serializeFunctions, ignoreUndefined));
+                }
+                else {
+                    return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                        1 +
+                        4 +
+                        ByteUtils.utf8ByteLength(value.code.toString()) +
+                        1);
+                }
+            }
+            else if (value._bsontype === 'Binary') {
+                const binary = value;
+                if (binary.sub_type === Binary.SUBTYPE_BYTE_ARRAY) {
+                    return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                        (binary.position + 1 + 4 + 1 + 4));
+                }
+                else {
+                    return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (binary.position + 1 + 4 + 1));
+                }
+            }
+            else if (value._bsontype === 'Symbol') {
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                    ByteUtils.utf8ByteLength(value.value) +
+                    4 +
+                    1 +
+                    1);
+            }
+            else if (value._bsontype === 'DBRef') {
+                const ordered_values = Object.assign({
+                    $ref: value.collection,
+                    $id: value.oid
+                }, value.fields);
+                if (value.db != null) {
+                    ordered_values['$db'] = value.db;
+                }
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                    1 +
+                    internalCalculateObjectSize(ordered_values, serializeFunctions, ignoreUndefined));
+            }
+            else if (value instanceof RegExp || isRegExp(value)) {
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                    1 +
+                    ByteUtils.utf8ByteLength(value.source) +
+                    1 +
+                    (value.global ? 1 : 0) +
+                    (value.ignoreCase ? 1 : 0) +
+                    (value.multiline ? 1 : 0) +
+                    1);
+            }
+            else if (value._bsontype === 'BSONRegExp') {
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                    1 +
+                    ByteUtils.utf8ByteLength(value.pattern) +
+                    1 +
+                    ByteUtils.utf8ByteLength(value.options) +
+                    1);
+            }
+            else {
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                    internalCalculateObjectSize(value, serializeFunctions, ignoreUndefined) +
+                    1);
+            }
+        case 'function':
+            if (serializeFunctions) {
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                    1 +
+                    4 +
+                    ByteUtils.utf8ByteLength(value.toString()) +
+                    1);
+            }
+            return 0;
+        case 'bigint':
+            return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+        case 'symbol':
+            return 0;
+        default:
+            throw new BSONError(`Unrecognized JS type: ${typeof value}`);
+    }
+}
+
+function alphabetize(str) {
+    return str.split('').sort().join('');
+}
+class BSONRegExp extends BSONValue {
+    get _bsontype() {
+        return 'BSONRegExp';
+    }
+    constructor(pattern, options) {
+        super();
+        this.pattern = pattern;
+        this.options = alphabetize(options ?? '');
+        if (this.pattern.indexOf('\x00') !== -1) {
+            throw new BSONError(`BSON Regex patterns cannot contain null bytes, found: ${JSON.stringify(this.pattern)}`);
+        }
+        if (this.options.indexOf('\x00') !== -1) {
+            throw new BSONError(`BSON Regex options cannot contain null bytes, found: ${JSON.stringify(this.options)}`);
+        }
+        for (let i = 0; i < this.options.length; i++) {
+            if (!(this.options[i] === 'i' ||
+                this.options[i] === 'm' ||
+                this.options[i] === 'x' ||
+                this.options[i] === 'l' ||
+                this.options[i] === 's' ||
+                this.options[i] === 'u')) {
+                throw new BSONError(`The regular expression option [${this.options[i]}] is not supported`);
+            }
+        }
+    }
+    static parseOptions(options) {
+        return options ? options.split('').sort().join('') : '';
+    }
+    toExtendedJSON(options) {
+        options = options || {};
+        if (options.legacy) {
+            return { $regex: this.pattern, $options: this.options };
+        }
+        return { $regularExpression: { pattern: this.pattern, options: this.options } };
+    }
+    static fromExtendedJSON(doc) {
+        if ('$regex' in doc) {
+            if (typeof doc.$regex !== 'string') {
+                if (doc.$regex._bsontype === 'BSONRegExp') {
+                    return doc;
+                }
+            }
+            else {
+                return new BSONRegExp(doc.$regex, BSONRegExp.parseOptions(doc.$options));
+            }
+        }
+        if ('$regularExpression' in doc) {
+            return new BSONRegExp(doc.$regularExpression.pattern, BSONRegExp.parseOptions(doc.$regularExpression.options));
+        }
+        throw new BSONError(`Unexpected BSONRegExp EJSON object form: ${JSON.stringify(doc)}`);
+    }
+    inspect(depth, options, inspect) {
+        const stylize = getStylizeFunction(options) ?? (v => v);
+        inspect ??= defaultInspect;
+        const pattern = stylize(inspect(this.pattern), 'regexp');
+        const flags = stylize(inspect(this.options), 'regexp');
+        return `new BSONRegExp(${pattern}, ${flags})`;
+    }
+}
+
+class BSONSymbol extends BSONValue {
+    get _bsontype() {
+        return 'BSONSymbol';
+    }
+    constructor(value) {
+        super();
+        this.value = value;
+    }
+    valueOf() {
+        return this.value;
+    }
+    toString() {
+        return this.value;
+    }
+    toJSON() {
+        return this.value;
+    }
+    toExtendedJSON() {
+        return { $symbol: this.value };
+    }
+    static fromExtendedJSON(doc) {
+        return new BSONSymbol(doc.$symbol);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        return `new BSONSymbol(${inspect(this.value, options)})`;
+    }
+}
+
+const LongWithoutOverridesClass = Long;
+class Timestamp extends LongWithoutOverridesClass {
+    get _bsontype() {
+        return 'Timestamp';
+    }
+    get i() {
+        return this.low >>> 0;
+    }
+    get t() {
+        return this.high >>> 0;
+    }
+    constructor(low) {
+        if (low == null) {
+            super(0, 0, true);
+        }
+        else if (typeof low === 'bigint') {
+            super(low, true);
+        }
+        else if (Long.isLong(low)) {
+            super(low.low, low.high, true);
+        }
+        else if (typeof low === 'object' && 't' in low && 'i' in low) {
+            if (typeof low.t !== 'number' && (typeof low.t !== 'object' || low.t._bsontype !== 'Int32')) {
+                throw new BSONError('Timestamp constructed from { t, i } must provide t as a number');
+            }
+            if (typeof low.i !== 'number' && (typeof low.i !== 'object' || low.i._bsontype !== 'Int32')) {
+                throw new BSONError('Timestamp constructed from { t, i } must provide i as a number');
+            }
+            const t = Number(low.t);
+            const i = Number(low.i);
+            if (t < 0 || Number.isNaN(t)) {
+                throw new BSONError('Timestamp constructed from { t, i } must provide a positive t');
+            }
+            if (i < 0 || Number.isNaN(i)) {
+                throw new BSONError('Timestamp constructed from { t, i } must provide a positive i');
+            }
+            if (t > 0xffff_ffff) {
+                throw new BSONError('Timestamp constructed from { t, i } must provide t equal or less than uint32 max');
+            }
+            if (i > 0xffff_ffff) {
+                throw new BSONError('Timestamp constructed from { t, i } must provide i equal or less than uint32 max');
+            }
+            super(i, t, true);
+        }
+        else {
+            throw new BSONError('A Timestamp can only be constructed with: bigint, Long, or { t: number; i: number }');
+        }
+    }
+    toJSON() {
+        return {
+            $timestamp: this.toString()
+        };
+    }
+    static fromInt(value) {
+        return new Timestamp(Long.fromInt(value, true));
+    }
+    static fromNumber(value) {
+        return new Timestamp(Long.fromNumber(value, true));
+    }
+    static fromBits(lowBits, highBits) {
+        return new Timestamp({ i: lowBits, t: highBits });
+    }
+    static fromString(str, optRadix) {
+        return new Timestamp(Long.fromString(str, true, optRadix));
+    }
+    toExtendedJSON() {
+        return { $timestamp: { t: this.t, i: this.i } };
+    }
+    static fromExtendedJSON(doc) {
+        const i = Long.isLong(doc.$timestamp.i)
+            ? doc.$timestamp.i.getLowBitsUnsigned()
+            : doc.$timestamp.i;
+        const t = Long.isLong(doc.$timestamp.t)
+            ? doc.$timestamp.t.getLowBitsUnsigned()
+            : doc.$timestamp.t;
+        return new Timestamp({ t, i });
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        const t = inspect(this.t, options);
+        const i = inspect(this.i, options);
+        return `new Timestamp({ t: ${t}, i: ${i} })`;
+    }
+}
+Timestamp.MAX_VALUE = Long.MAX_UNSIGNED_VALUE;
+
+const JS_INT_MAX_LONG = Long.fromNumber(JS_INT_MAX);
+const JS_INT_MIN_LONG = Long.fromNumber(JS_INT_MIN);
+function internalDeserialize(buffer, options, isArray) {
+    options = options == null ? {} : options;
+    const index = options && options.index ? options.index : 0;
+    const size = NumberUtils.getInt32LE(buffer, index);
+    if (size < 5) {
+        throw new BSONError(`bson size must be >= 5, is ${size}`);
+    }
+    if (options.allowObjectSmallerThanBufferSize && buffer.length < size) {
+        throw new BSONError(`buffer length ${buffer.length} must be >= bson size ${size}`);
+    }
+    if (!options.allowObjectSmallerThanBufferSize && buffer.length !== size) {
+        throw new BSONError(`buffer length ${buffer.length} must === bson size ${size}`);
+    }
+    if (size + index > buffer.byteLength) {
+        throw new BSONError(`(bson size ${size} + options.index ${index} must be <= buffer length ${buffer.byteLength})`);
+    }
+    if (buffer[index + size - 1] !== 0) {
+        throw new BSONError("One object, sized correctly, with a spot for an EOO, but the EOO isn't 0x00");
+    }
+    return deserializeObject(buffer, index, options, isArray);
+}
+const allowedDBRefKeys = /^\$ref$|^\$id$|^\$db$/;
+function deserializeObject(buffer, index, options, isArray = false) {
+    const fieldsAsRaw = options['fieldsAsRaw'] == null ? null : options['fieldsAsRaw'];
+    const raw = options['raw'] == null ? false : options['raw'];
+    const bsonRegExp = typeof options['bsonRegExp'] === 'boolean' ? options['bsonRegExp'] : false;
+    const promoteBuffers = options.promoteBuffers ?? false;
+    const promoteLongs = options.promoteLongs ?? true;
+    const promoteValues = options.promoteValues ?? true;
+    const useBigInt64 = options.useBigInt64 ?? false;
+    if (useBigInt64 && !promoteValues) {
+        throw new BSONError('Must either request bigint or Long for int64 deserialization');
+    }
+    if (useBigInt64 && !promoteLongs) {
+        throw new BSONError('Must either request bigint or Long for int64 deserialization');
+    }
+    const validation = options.validation == null ? { utf8: true } : options.validation;
+    let globalUTFValidation = true;
+    let validationSetting;
+    let utf8KeysSet;
+    const utf8ValidatedKeys = validation.utf8;
+    if (typeof utf8ValidatedKeys === 'boolean') {
+        validationSetting = utf8ValidatedKeys;
+    }
+    else {
+        globalUTFValidation = false;
+        const utf8ValidationValues = Object.keys(utf8ValidatedKeys).map(function (key) {
+            return utf8ValidatedKeys[key];
+        });
+        if (utf8ValidationValues.length === 0) {
+            throw new BSONError('UTF-8 validation setting cannot be empty');
+        }
+        if (typeof utf8ValidationValues[0] !== 'boolean') {
+            throw new BSONError('Invalid UTF-8 validation option, must specify boolean values');
+        }
+        validationSetting = utf8ValidationValues[0];
+        if (!utf8ValidationValues.every(item => item === validationSetting)) {
+            throw new BSONError('Invalid UTF-8 validation option - keys must be all true or all false');
+        }
+    }
+    if (!globalUTFValidation) {
+        utf8KeysSet = new Set();
+        for (const key of Object.keys(utf8ValidatedKeys)) {
+            utf8KeysSet.add(key);
+        }
+    }
+    const startIndex = index;
+    if (buffer.length < 5)
+        throw new BSONError('corrupt bson message < 5 bytes long');
+    const size = NumberUtils.getInt32LE(buffer, index);
+    index += 4;
+    if (size < 5 || size > buffer.length)
+        throw new BSONError('corrupt bson message');
+    const object = isArray ? [] : {};
+    let arrayIndex = 0;
+    const done = false;
+    let isPossibleDBRef = isArray ? false : null;
+    while (!done) {
+        const elementType = buffer[index++];
+        if (elementType === 0)
+            break;
+        let i = index;
+        while (buffer[i] !== 0x00 && i < buffer.length) {
+            i++;
+        }
+        if (i >= buffer.byteLength)
+            throw new BSONError('Bad BSON Document: illegal CString');
+        const name = isArray ? arrayIndex++ : ByteUtils.toUTF8(buffer, index, i, false);
+        let shouldValidateKey = true;
+        if (globalUTFValidation || utf8KeysSet?.has(name)) {
+            shouldValidateKey = validationSetting;
+        }
+        else {
+            shouldValidateKey = !validationSetting;
+        }
+        if (isPossibleDBRef !== false && name[0] === '$') {
+            isPossibleDBRef = allowedDBRefKeys.test(name);
+        }
+        let value;
+        index = i + 1;
+        if (elementType === BSON_DATA_STRING) {
+            const stringSize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            if (stringSize <= 0 ||
+                stringSize > buffer.length - index ||
+                buffer[index + stringSize - 1] !== 0) {
+                throw new BSONError('bad string length in bson');
+            }
+            value = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey);
+            index = index + stringSize;
+        }
+        else if (elementType === BSON_DATA_OID) {
+            const oid = ByteUtils.allocateUnsafe(12);
+            for (let i = 0; i < 12; i++)
+                oid[i] = buffer[index + i];
+            value = new ObjectId(oid);
+            index = index + 12;
+        }
+        else if (elementType === BSON_DATA_INT && promoteValues === false) {
+            value = new Int32(NumberUtils.getInt32LE(buffer, index));
+            index += 4;
+        }
+        else if (elementType === BSON_DATA_INT) {
+            value = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+        }
+        else if (elementType === BSON_DATA_NUMBER) {
+            value = NumberUtils.getFloat64LE(buffer, index);
+            index += 8;
+            if (promoteValues === false)
+                value = new Double(value);
+        }
+        else if (elementType === BSON_DATA_DATE) {
+            const lowBits = NumberUtils.getInt32LE(buffer, index);
+            const highBits = NumberUtils.getInt32LE(buffer, index + 4);
+            index += 8;
+            value = new Date(new Long(lowBits, highBits).toNumber());
+        }
+        else if (elementType === BSON_DATA_BOOLEAN) {
+            if (buffer[index] !== 0 && buffer[index] !== 1)
+                throw new BSONError('illegal boolean type value');
+            value = buffer[index++] === 1;
+        }
+        else if (elementType === BSON_DATA_OBJECT) {
+            const _index = index;
+            const objectSize = NumberUtils.getInt32LE(buffer, index);
+            if (objectSize <= 0 || objectSize > buffer.length - index)
+                throw new BSONError('bad embedded document length in bson');
+            if (raw) {
+                value = buffer.subarray(index, index + objectSize);
+            }
+            else {
+                let objectOptions = options;
+                if (!globalUTFValidation) {
+                    objectOptions = { ...options, validation: { utf8: shouldValidateKey } };
+                }
+                value = deserializeObject(buffer, _index, objectOptions, false);
+            }
+            index = index + objectSize;
+        }
+        else if (elementType === BSON_DATA_ARRAY) {
+            const _index = index;
+            const objectSize = NumberUtils.getInt32LE(buffer, index);
+            let arrayOptions = options;
+            const stopIndex = index + objectSize;
+            if (fieldsAsRaw && fieldsAsRaw[name]) {
+                arrayOptions = { ...options, raw: true };
+            }
+            if (!globalUTFValidation) {
+                arrayOptions = { ...arrayOptions, validation: { utf8: shouldValidateKey } };
+            }
+            value = deserializeObject(buffer, _index, arrayOptions, true);
+            index = index + objectSize;
+            if (buffer[index - 1] !== 0)
+                throw new BSONError('invalid array terminator byte');
+            if (index !== stopIndex)
+                throw new BSONError('corrupted array bson');
+        }
+        else if (elementType === BSON_DATA_UNDEFINED) {
+            value = undefined;
+        }
+        else if (elementType === BSON_DATA_NULL) {
+            value = null;
+        }
+        else if (elementType === BSON_DATA_LONG) {
+            if (useBigInt64) {
+                value = NumberUtils.getBigInt64LE(buffer, index);
+                index += 8;
+            }
+            else {
+                const lowBits = NumberUtils.getInt32LE(buffer, index);
+                const highBits = NumberUtils.getInt32LE(buffer, index + 4);
+                index += 8;
+                const long = new Long(lowBits, highBits);
+                if (promoteLongs && promoteValues === true) {
+                    value =
+                        long.lessThanOrEqual(JS_INT_MAX_LONG) && long.greaterThanOrEqual(JS_INT_MIN_LONG)
+                            ? long.toNumber()
+                            : long;
+                }
+                else {
+                    value = long;
+                }
+            }
+        }
+        else if (elementType === BSON_DATA_DECIMAL128) {
+            const bytes = ByteUtils.allocateUnsafe(16);
+            for (let i = 0; i < 16; i++)
+                bytes[i] = buffer[index + i];
+            index = index + 16;
+            value = new Decimal128(bytes);
+        }
+        else if (elementType === BSON_DATA_BINARY) {
+            let binarySize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            const totalBinarySize = binarySize;
+            const subType = buffer[index++];
+            if (binarySize < 0)
+                throw new BSONError('Negative binary type element size found');
+            if (binarySize > buffer.byteLength)
+                throw new BSONError('Binary type size larger than document size');
+            if (subType === Binary.SUBTYPE_BYTE_ARRAY) {
+                binarySize = NumberUtils.getInt32LE(buffer, index);
+                index += 4;
+                if (binarySize < 0)
+                    throw new BSONError('Negative binary type element size found for subtype 0x02');
+                if (binarySize > totalBinarySize - 4)
+                    throw new BSONError('Binary type with subtype 0x02 contains too long binary size');
+                if (binarySize < totalBinarySize - 4)
+                    throw new BSONError('Binary type with subtype 0x02 contains too short binary size');
+            }
+            if (promoteBuffers && promoteValues) {
+                value = ByteUtils.toLocalBufferType(buffer.subarray(index, index + binarySize));
+            }
+            else {
+                value = new Binary(buffer.subarray(index, index + binarySize), subType);
+                if (subType === BSON_BINARY_SUBTYPE_UUID_NEW && UUID.isValid(value)) {
+                    value = value.toUUID();
+                }
+            }
+            index = index + binarySize;
+        }
+        else if (elementType === BSON_DATA_REGEXP && bsonRegExp === false) {
+            i = index;
+            while (buffer[i] !== 0x00 && i < buffer.length) {
+                i++;
+            }
+            if (i >= buffer.length)
+                throw new BSONError('Bad BSON Document: illegal CString');
+            const source = ByteUtils.toUTF8(buffer, index, i, false);
+            index = i + 1;
+            i = index;
+            while (buffer[i] !== 0x00 && i < buffer.length) {
+                i++;
+            }
+            if (i >= buffer.length)
+                throw new BSONError('Bad BSON Document: illegal CString');
+            const regExpOptions = ByteUtils.toUTF8(buffer, index, i, false);
+            index = i + 1;
+            const optionsArray = new Array(regExpOptions.length);
+            for (i = 0; i < regExpOptions.length; i++) {
+                switch (regExpOptions[i]) {
+                    case 'm':
+                        optionsArray[i] = 'm';
+                        break;
+                    case 's':
+                        optionsArray[i] = 'g';
+                        break;
+                    case 'i':
+                        optionsArray[i] = 'i';
+                        break;
+                }
+            }
+            value = new RegExp(source, optionsArray.join(''));
+        }
+        else if (elementType === BSON_DATA_REGEXP && bsonRegExp === true) {
+            i = index;
+            while (buffer[i] !== 0x00 && i < buffer.length) {
+                i++;
+            }
+            if (i >= buffer.length)
+                throw new BSONError('Bad BSON Document: illegal CString');
+            const source = ByteUtils.toUTF8(buffer, index, i, false);
+            index = i + 1;
+            i = index;
+            while (buffer[i] !== 0x00 && i < buffer.length) {
+                i++;
+            }
+            if (i >= buffer.length)
+                throw new BSONError('Bad BSON Document: illegal CString');
+            const regExpOptions = ByteUtils.toUTF8(buffer, index, i, false);
+            index = i + 1;
+            value = new BSONRegExp(source, regExpOptions);
+        }
+        else if (elementType === BSON_DATA_SYMBOL) {
+            const stringSize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            if (stringSize <= 0 ||
+                stringSize > buffer.length - index ||
+                buffer[index + stringSize - 1] !== 0) {
+                throw new BSONError('bad string length in bson');
+            }
+            const symbol = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey);
+            value = promoteValues ? symbol : new BSONSymbol(symbol);
+            index = index + stringSize;
+        }
+        else if (elementType === BSON_DATA_TIMESTAMP) {
+            value = new Timestamp({
+                i: NumberUtils.getUint32LE(buffer, index),
+                t: NumberUtils.getUint32LE(buffer, index + 4)
+            });
+            index += 8;
+        }
+        else if (elementType === BSON_DATA_MIN_KEY) {
+            value = new MinKey();
+        }
+        else if (elementType === BSON_DATA_MAX_KEY) {
+            value = new MaxKey();
+        }
+        else if (elementType === BSON_DATA_CODE) {
+            const stringSize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            if (stringSize <= 0 ||
+                stringSize > buffer.length - index ||
+                buffer[index + stringSize - 1] !== 0) {
+                throw new BSONError('bad string length in bson');
+            }
+            const functionString = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey);
+            value = new Code(functionString);
+            index = index + stringSize;
+        }
+        else if (elementType === BSON_DATA_CODE_W_SCOPE) {
+            const totalSize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            if (totalSize < 4 + 4 + 4 + 1) {
+                throw new BSONError('code_w_scope total size shorter minimum expected length');
+            }
+            const stringSize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            if (stringSize <= 0 ||
+                stringSize > buffer.length - index ||
+                buffer[index + stringSize - 1] !== 0) {
+                throw new BSONError('bad string length in bson');
+            }
+            const functionString = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey);
+            index = index + stringSize;
+            const _index = index;
+            const objectSize = NumberUtils.getInt32LE(buffer, index);
+            const scopeObject = deserializeObject(buffer, _index, options, false);
+            index = index + objectSize;
+            if (totalSize < 4 + 4 + objectSize + stringSize) {
+                throw new BSONError('code_w_scope total size is too short, truncating scope');
+            }
+            if (totalSize > 4 + 4 + objectSize + stringSize) {
+                throw new BSONError('code_w_scope total size is too long, clips outer document');
+            }
+            value = new Code(functionString, scopeObject);
+        }
+        else if (elementType === BSON_DATA_DBPOINTER) {
+            const stringSize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            if (stringSize <= 0 ||
+                stringSize > buffer.length - index ||
+                buffer[index + stringSize - 1] !== 0)
+                throw new BSONError('bad string length in bson');
+            const namespace = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey);
+            index = index + stringSize;
+            const oidBuffer = ByteUtils.allocateUnsafe(12);
+            for (let i = 0; i < 12; i++)
+                oidBuffer[i] = buffer[index + i];
+            const oid = new ObjectId(oidBuffer);
+            index = index + 12;
+            value = new DBRef(namespace, oid);
+        }
+        else {
+            throw new BSONError(`Detected unknown BSON type ${elementType.toString(16)} for fieldname "${name}"`);
+        }
+        if (name === '__proto__') {
+            Object.defineProperty(object, name, {
+                value,
+                writable: true,
+                enumerable: true,
+                configurable: true
+            });
+        }
+        else {
+            object[name] = value;
+        }
+    }
+    if (size !== index - startIndex) {
+        if (isArray)
+            throw new BSONError('corrupt array bson');
+        throw new BSONError('corrupt object bson');
+    }
+    if (!isPossibleDBRef)
+        return object;
+    if (isDBRefLike(object)) {
+        const copy = Object.assign({}, object);
+        delete copy.$ref;
+        delete copy.$id;
+        delete copy.$db;
+        return new DBRef(object.$ref, object.$id, object.$db, copy);
+    }
+    return object;
+}
+
+const regexp = /\x00/;
+const ignoreKeys = new Set(['$db', '$ref', '$id', '$clusterTime']);
+function serializeString(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_STRING;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes + 1;
+    buffer[index - 1] = 0;
+    const size = ByteUtils.encodeUTF8Into(buffer, value, index + 4);
+    NumberUtils.setInt32LE(buffer, index, size + 1);
+    index = index + 4 + size;
+    buffer[index++] = 0;
+    return index;
+}
+function serializeNumber(buffer, key, value, index) {
+    const isNegativeZero = Object.is(value, -0);
+    const type = !isNegativeZero &&
+        Number.isSafeInteger(value) &&
+        value <= BSON_INT32_MAX &&
+        value >= BSON_INT32_MIN
+        ? BSON_DATA_INT
+        : BSON_DATA_NUMBER;
+    buffer[index++] = type;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0x00;
+    if (type === BSON_DATA_INT) {
+        index += NumberUtils.setInt32LE(buffer, index, value);
+    }
+    else {
+        index += NumberUtils.setFloat64LE(buffer, index, value);
+    }
+    return index;
+}
+function serializeBigInt(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_LONG;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index += numberOfWrittenBytes;
+    buffer[index++] = 0;
+    index += NumberUtils.setBigInt64LE(buffer, index, value);
+    return index;
+}
+function serializeNull(buffer, key, _, index) {
+    buffer[index++] = BSON_DATA_NULL;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    return index;
+}
+function serializeBoolean(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_BOOLEAN;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    buffer[index++] = value ? 1 : 0;
+    return index;
+}
+function serializeDate(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_DATE;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const dateInMilis = Long.fromNumber(value.getTime());
+    const lowBits = dateInMilis.getLowBits();
+    const highBits = dateInMilis.getHighBits();
+    index += NumberUtils.setInt32LE(buffer, index, lowBits);
+    index += NumberUtils.setInt32LE(buffer, index, highBits);
+    return index;
+}
+function serializeRegExp(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_REGEXP;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    if (value.source && value.source.match(regexp) != null) {
+        throw new BSONError('value ' + value.source + ' must not contain null bytes');
+    }
+    index = index + ByteUtils.encodeUTF8Into(buffer, value.source, index);
+    buffer[index++] = 0x00;
+    if (value.ignoreCase)
+        buffer[index++] = 0x69;
+    if (value.global)
+        buffer[index++] = 0x73;
+    if (value.multiline)
+        buffer[index++] = 0x6d;
+    buffer[index++] = 0x00;
+    return index;
+}
+function serializeBSONRegExp(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_REGEXP;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    if (value.pattern.match(regexp) != null) {
+        throw new BSONError('pattern ' + value.pattern + ' must not contain null bytes');
+    }
+    index = index + ByteUtils.encodeUTF8Into(buffer, value.pattern, index);
+    buffer[index++] = 0x00;
+    const sortedOptions = value.options.split('').sort().join('');
+    index = index + ByteUtils.encodeUTF8Into(buffer, sortedOptions, index);
+    buffer[index++] = 0x00;
+    return index;
+}
+function serializeMinMax(buffer, key, value, index) {
+    if (value === null) {
+        buffer[index++] = BSON_DATA_NULL;
+    }
+    else if (value._bsontype === 'MinKey') {
+        buffer[index++] = BSON_DATA_MIN_KEY;
+    }
+    else {
+        buffer[index++] = BSON_DATA_MAX_KEY;
+    }
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    return index;
+}
+function serializeObjectId(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_OID;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    index += value.serializeInto(buffer, index);
+    return index;
+}
+function serializeBuffer(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_BINARY;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const size = value.length;
+    index += NumberUtils.setInt32LE(buffer, index, size);
+    buffer[index++] = BSON_BINARY_SUBTYPE_DEFAULT;
+    if (size <= 16) {
+        for (let i = 0; i < size; i++)
+            buffer[index + i] = value[i];
+    }
+    else {
+        buffer.set(value, index);
+    }
+    index = index + size;
+    return index;
+}
+function serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path) {
+    if (path.has(value)) {
+        throw new BSONError('Cannot convert circular structure to BSON');
+    }
+    path.add(value);
+    buffer[index++] = Array.isArray(value) ? BSON_DATA_ARRAY : BSON_DATA_OBJECT;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const endIndex = serializeInto(buffer, value, checkKeys, index, depth + 1, serializeFunctions, ignoreUndefined, path);
+    path.delete(value);
+    return endIndex;
+}
+function serializeDecimal128(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_DECIMAL128;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    for (let i = 0; i < 16; i++)
+        buffer[index + i] = value.bytes[i];
+    return index + 16;
+}
+function serializeLong(buffer, key, value, index) {
+    buffer[index++] =
+        value._bsontype === 'Long' ? BSON_DATA_LONG : BSON_DATA_TIMESTAMP;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const lowBits = value.getLowBits();
+    const highBits = value.getHighBits();
+    index += NumberUtils.setInt32LE(buffer, index, lowBits);
+    index += NumberUtils.setInt32LE(buffer, index, highBits);
+    return index;
+}
+function serializeInt32(buffer, key, value, index) {
+    value = value.valueOf();
+    buffer[index++] = BSON_DATA_INT;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    index += NumberUtils.setInt32LE(buffer, index, value);
+    return index;
+}
+function serializeDouble(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_NUMBER;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    index += NumberUtils.setFloat64LE(buffer, index, value.value);
+    return index;
+}
+function serializeFunction(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_CODE;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const functionString = value.toString();
+    const size = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1;
+    NumberUtils.setInt32LE(buffer, index, size);
+    index = index + 4 + size - 1;
+    buffer[index++] = 0;
+    return index;
+}
+function serializeCode(buffer, key, value, index, checkKeys = false, depth = 0, serializeFunctions = false, ignoreUndefined = true, path) {
+    if (value.scope && typeof value.scope === 'object') {
+        buffer[index++] = BSON_DATA_CODE_W_SCOPE;
+        const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+        index = index + numberOfWrittenBytes;
+        buffer[index++] = 0;
+        let startIndex = index;
+        const functionString = value.code;
+        index = index + 4;
+        const codeSize = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1;
+        NumberUtils.setInt32LE(buffer, index, codeSize);
+        buffer[index + 4 + codeSize - 1] = 0;
+        index = index + codeSize + 4;
+        const endIndex = serializeInto(buffer, value.scope, checkKeys, index, depth + 1, serializeFunctions, ignoreUndefined, path);
+        index = endIndex - 1;
+        const totalSize = endIndex - startIndex;
+        startIndex += NumberUtils.setInt32LE(buffer, startIndex, totalSize);
+        buffer[index++] = 0;
+    }
+    else {
+        buffer[index++] = BSON_DATA_CODE;
+        const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+        index = index + numberOfWrittenBytes;
+        buffer[index++] = 0;
+        const functionString = value.code.toString();
+        const size = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1;
+        NumberUtils.setInt32LE(buffer, index, size);
+        index = index + 4 + size - 1;
+        buffer[index++] = 0;
+    }
+    return index;
+}
+function serializeBinary(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_BINARY;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const data = value.buffer;
+    let size = value.position;
+    if (value.sub_type === Binary.SUBTYPE_BYTE_ARRAY)
+        size = size + 4;
+    index += NumberUtils.setInt32LE(buffer, index, size);
+    buffer[index++] = value.sub_type;
+    if (value.sub_type === Binary.SUBTYPE_BYTE_ARRAY) {
+        size = size - 4;
+        index += NumberUtils.setInt32LE(buffer, index, size);
+    }
+    if (value.sub_type === Binary.SUBTYPE_VECTOR) {
+        validateBinaryVector(value);
+    }
+    if (size <= 16) {
+        for (let i = 0; i < size; i++)
+            buffer[index + i] = data[i];
+    }
+    else {
+        buffer.set(data, index);
+    }
+    index = index + value.position;
+    return index;
+}
+function serializeSymbol(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_SYMBOL;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const size = ByteUtils.encodeUTF8Into(buffer, value.value, index + 4) + 1;
+    NumberUtils.setInt32LE(buffer, index, size);
+    index = index + 4 + size - 1;
+    buffer[index++] = 0;
+    return index;
+}
+function serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path) {
+    buffer[index++] = BSON_DATA_OBJECT;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    let startIndex = index;
+    let output = {
+        $ref: value.collection || value.namespace,
+        $id: value.oid
+    };
+    if (value.db != null) {
+        output.$db = value.db;
+    }
+    output = Object.assign(output, value.fields);
+    const endIndex = serializeInto(buffer, output, false, index, depth + 1, serializeFunctions, true, path);
+    const size = endIndex - startIndex;
+    startIndex += NumberUtils.setInt32LE(buffer, index, size);
+    return endIndex;
+}
+function serializeInto(buffer, object, checkKeys, startingIndex, depth, serializeFunctions, ignoreUndefined, path) {
+    if (path == null) {
+        if (object == null) {
+            buffer[0] = 0x05;
+            buffer[1] = 0x00;
+            buffer[2] = 0x00;
+            buffer[3] = 0x00;
+            buffer[4] = 0x00;
+            return 5;
+        }
+        if (Array.isArray(object)) {
+            throw new BSONError('serialize does not support an array as the root input');
+        }
+        if (typeof object !== 'object') {
+            throw new BSONError('serialize does not support non-object as the root input');
+        }
+        else if ('_bsontype' in object && typeof object._bsontype === 'string') {
+            throw new BSONError(`BSON types cannot be serialized as a document`);
+        }
+        else if (isDate(object) ||
+            isRegExp(object) ||
+            isUint8Array(object) ||
+            isAnyArrayBuffer(object)) {
+            throw new BSONError(`date, regexp, typedarray, and arraybuffer cannot be BSON documents`);
+        }
+        path = new Set();
+    }
+    path.add(object);
+    let index = startingIndex + 4;
+    if (Array.isArray(object)) {
+        for (let i = 0; i < object.length; i++) {
+            const key = `${i}`;
+            let value = object[i];
+            if (typeof value?.toBSON === 'function') {
+                value = value.toBSON();
+            }
+            const type = typeof value;
+            if (value === undefined) {
+                index = serializeNull(buffer, key, value, index);
+            }
+            else if (value === null) {
+                index = serializeNull(buffer, key, value, index);
+            }
+            else if (type === 'string') {
+                index = serializeString(buffer, key, value, index);
+            }
+            else if (type === 'number') {
+                index = serializeNumber(buffer, key, value, index);
+            }
+            else if (type === 'bigint') {
+                index = serializeBigInt(buffer, key, value, index);
+            }
+            else if (type === 'boolean') {
+                index = serializeBoolean(buffer, key, value, index);
+            }
+            else if (type === 'object' && value._bsontype == null) {
+                if (value instanceof Date || isDate(value)) {
+                    index = serializeDate(buffer, key, value, index);
+                }
+                else if (value instanceof Uint8Array || isUint8Array(value)) {
+                    index = serializeBuffer(buffer, key, value, index);
+                }
+                else if (value instanceof RegExp || isRegExp(value)) {
+                    index = serializeRegExp(buffer, key, value, index);
+                }
+                else {
+                    index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path);
+                }
+            }
+            else if (type === 'object') {
+                if (value[BSON_VERSION_SYMBOL] !== BSON_MAJOR_VERSION) {
+                    throw new BSONVersionError();
+                }
+                else if (value._bsontype === 'ObjectId') {
+                    index = serializeObjectId(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Decimal128') {
+                    index = serializeDecimal128(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') {
+                    index = serializeLong(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Double') {
+                    index = serializeDouble(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Code') {
+                    index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path);
+                }
+                else if (value._bsontype === 'Binary') {
+                    index = serializeBinary(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'BSONSymbol') {
+                    index = serializeSymbol(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'DBRef') {
+                    index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path);
+                }
+                else if (value._bsontype === 'BSONRegExp') {
+                    index = serializeBSONRegExp(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Int32') {
+                    index = serializeInt32(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') {
+                    index = serializeMinMax(buffer, key, value, index);
+                }
+                else if (typeof value._bsontype !== 'undefined') {
+                    throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`);
+                }
+            }
+            else if (type === 'function' && serializeFunctions) {
+                index = serializeFunction(buffer, key, value, index);
+            }
+        }
+    }
+    else if (object instanceof Map || isMap(object)) {
+        const iterator = object.entries();
+        let done = false;
+        while (!done) {
+            const entry = iterator.next();
+            done = !!entry.done;
+            if (done)
+                continue;
+            const key = entry.value[0];
+            let value = entry.value[1];
+            if (typeof value?.toBSON === 'function') {
+                value = value.toBSON();
+            }
+            const type = typeof value;
+            if (typeof key === 'string' && !ignoreKeys.has(key)) {
+                if (key.match(regexp) != null) {
+                    throw new BSONError('key ' + key + ' must not contain null bytes');
+                }
+                if (checkKeys) {
+                    if ('$' === key[0]) {
+                        throw new BSONError('key ' + key + " must not start with '$'");
+                    }
+                    else if (key.includes('.')) {
+                        throw new BSONError('key ' + key + " must not contain '.'");
+                    }
+                }
+            }
+            if (value === undefined) {
+                if (ignoreUndefined === false)
+                    index = serializeNull(buffer, key, value, index);
+            }
+            else if (value === null) {
+                index = serializeNull(buffer, key, value, index);
+            }
+            else if (type === 'string') {
+                index = serializeString(buffer, key, value, index);
+            }
+            else if (type === 'number') {
+                index = serializeNumber(buffer, key, value, index);
+            }
+            else if (type === 'bigint') {
+                index = serializeBigInt(buffer, key, value, index);
+            }
+            else if (type === 'boolean') {
+                index = serializeBoolean(buffer, key, value, index);
+            }
+            else if (type === 'object' && value._bsontype == null) {
+                if (value instanceof Date || isDate(value)) {
+                    index = serializeDate(buffer, key, value, index);
+                }
+                else if (value instanceof Uint8Array || isUint8Array(value)) {
+                    index = serializeBuffer(buffer, key, value, index);
+                }
+                else if (value instanceof RegExp || isRegExp(value)) {
+                    index = serializeRegExp(buffer, key, value, index);
+                }
+                else {
+                    index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path);
+                }
+            }
+            else if (type === 'object') {
+                if (value[BSON_VERSION_SYMBOL] !== BSON_MAJOR_VERSION) {
+                    throw new BSONVersionError();
+                }
+                else if (value._bsontype === 'ObjectId') {
+                    index = serializeObjectId(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Decimal128') {
+                    index = serializeDecimal128(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') {
+                    index = serializeLong(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Double') {
+                    index = serializeDouble(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Code') {
+                    index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path);
+                }
+                else if (value._bsontype === 'Binary') {
+                    index = serializeBinary(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'BSONSymbol') {
+                    index = serializeSymbol(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'DBRef') {
+                    index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path);
+                }
+                else if (value._bsontype === 'BSONRegExp') {
+                    index = serializeBSONRegExp(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Int32') {
+                    index = serializeInt32(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') {
+                    index = serializeMinMax(buffer, key, value, index);
+                }
+                else if (typeof value._bsontype !== 'undefined') {
+                    throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`);
+                }
+            }
+            else if (type === 'function' && serializeFunctions) {
+                index = serializeFunction(buffer, key, value, index);
+            }
+        }
+    }
+    else {
+        if (typeof object?.toBSON === 'function') {
+            object = object.toBSON();
+            if (object != null && typeof object !== 'object') {
+                throw new BSONError('toBSON function did not return an object');
+            }
+        }
+        for (const key of Object.keys(object)) {
+            let value = object[key];
+            if (typeof value?.toBSON === 'function') {
+                value = value.toBSON();
+            }
+            const type = typeof value;
+            if (typeof key === 'string' && !ignoreKeys.has(key)) {
+                if (key.match(regexp) != null) {
+                    throw new BSONError('key ' + key + ' must not contain null bytes');
+                }
+                if (checkKeys) {
+                    if ('$' === key[0]) {
+                        throw new BSONError('key ' + key + " must not start with '$'");
+                    }
+                    else if (key.includes('.')) {
+                        throw new BSONError('key ' + key + " must not contain '.'");
+                    }
+                }
+            }
+            if (value === undefined) {
+                if (ignoreUndefined === false)
+                    index = serializeNull(buffer, key, value, index);
+            }
+            else if (value === null) {
+                index = serializeNull(buffer, key, value, index);
+            }
+            else if (type === 'string') {
+                index = serializeString(buffer, key, value, index);
+            }
+            else if (type === 'number') {
+                index = serializeNumber(buffer, key, value, index);
+            }
+            else if (type === 'bigint') {
+                index = serializeBigInt(buffer, key, value, index);
+            }
+            else if (type === 'boolean') {
+                index = serializeBoolean(buffer, key, value, index);
+            }
+            else if (type === 'object' && value._bsontype == null) {
+                if (value instanceof Date || isDate(value)) {
+                    index = serializeDate(buffer, key, value, index);
+                }
+                else if (value instanceof Uint8Array || isUint8Array(value)) {
+                    index = serializeBuffer(buffer, key, value, index);
+                }
+                else if (value instanceof RegExp || isRegExp(value)) {
+                    index = serializeRegExp(buffer, key, value, index);
+                }
+                else {
+                    index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path);
+                }
+            }
+            else if (type === 'object') {
+                if (value[BSON_VERSION_SYMBOL] !== BSON_MAJOR_VERSION) {
+                    throw new BSONVersionError();
+                }
+                else if (value._bsontype === 'ObjectId') {
+                    index = serializeObjectId(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Decimal128') {
+                    index = serializeDecimal128(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') {
+                    index = serializeLong(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Double') {
+                    index = serializeDouble(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Code') {
+                    index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path);
+                }
+                else if (value._bsontype === 'Binary') {
+                    index = serializeBinary(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'BSONSymbol') {
+                    index = serializeSymbol(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'DBRef') {
+                    index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path);
+                }
+                else if (value._bsontype === 'BSONRegExp') {
+                    index = serializeBSONRegExp(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Int32') {
+                    index = serializeInt32(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') {
+                    index = serializeMinMax(buffer, key, value, index);
+                }
+                else if (typeof value._bsontype !== 'undefined') {
+                    throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`);
+                }
+            }
+            else if (type === 'function' && serializeFunctions) {
+                index = serializeFunction(buffer, key, value, index);
+            }
+        }
+    }
+    path.delete(object);
+    buffer[index++] = 0x00;
+    const size = index - startingIndex;
+    startingIndex += NumberUtils.setInt32LE(buffer, startingIndex, size);
+    return index;
+}
+
+function isBSONType(value) {
+    return (value != null &&
+        typeof value === 'object' &&
+        '_bsontype' in value &&
+        typeof value._bsontype === 'string');
+}
+const keysToCodecs = {
+    $oid: ObjectId,
+    $binary: Binary,
+    $uuid: Binary,
+    $symbol: BSONSymbol,
+    $numberInt: Int32,
+    $numberDecimal: Decimal128,
+    $numberDouble: Double,
+    $numberLong: Long,
+    $minKey: MinKey,
+    $maxKey: MaxKey,
+    $regex: BSONRegExp,
+    $regularExpression: BSONRegExp,
+    $timestamp: Timestamp
+};
+function deserializeValue(value, options = {}) {
+    if (typeof value === 'number') {
+        const in32BitRange = value <= BSON_INT32_MAX && value >= BSON_INT32_MIN;
+        const in64BitRange = value <= BSON_INT64_MAX && value >= BSON_INT64_MIN;
+        if (options.relaxed || options.legacy) {
+            return value;
+        }
+        if (Number.isInteger(value) && !Object.is(value, -0)) {
+            if (in32BitRange) {
+                return new Int32(value);
+            }
+            if (in64BitRange) {
+                if (options.useBigInt64) {
+                    return BigInt(value);
+                }
+                return Long.fromNumber(value);
+            }
+        }
+        return new Double(value);
+    }
+    if (value == null || typeof value !== 'object')
+        return value;
+    if (value.$undefined)
+        return null;
+    const keys = Object.keys(value).filter(k => k.startsWith('$') && value[k] != null);
+    for (let i = 0; i < keys.length; i++) {
+        const c = keysToCodecs[keys[i]];
+        if (c)
+            return c.fromExtendedJSON(value, options);
+    }
+    if (value.$date != null) {
+        const d = value.$date;
+        const date = new Date();
+        if (options.legacy) {
+            if (typeof d === 'number')
+                date.setTime(d);
+            else if (typeof d === 'string')
+                date.setTime(Date.parse(d));
+            else if (typeof d === 'bigint')
+                date.setTime(Number(d));
+            else
+                throw new BSONRuntimeError(`Unrecognized type for EJSON date: ${typeof d}`);
+        }
+        else {
+            if (typeof d === 'string')
+                date.setTime(Date.parse(d));
+            else if (Long.isLong(d))
+                date.setTime(d.toNumber());
+            else if (typeof d === 'number' && options.relaxed)
+                date.setTime(d);
+            else if (typeof d === 'bigint')
+                date.setTime(Number(d));
+            else
+                throw new BSONRuntimeError(`Unrecognized type for EJSON date: ${typeof d}`);
+        }
+        return date;
+    }
+    if (value.$code != null) {
+        const copy = Object.assign({}, value);
+        if (value.$scope) {
+            copy.$scope = deserializeValue(value.$scope);
+        }
+        return Code.fromExtendedJSON(value);
+    }
+    if (isDBRefLike(value) || value.$dbPointer) {
+        const v = value.$ref ? value : value.$dbPointer;
+        if (v instanceof DBRef)
+            return v;
+        const dollarKeys = Object.keys(v).filter(k => k.startsWith('$'));
+        let valid = true;
+        dollarKeys.forEach(k => {
+            if (['$ref', '$id', '$db'].indexOf(k) === -1)
+                valid = false;
+        });
+        if (valid)
+            return DBRef.fromExtendedJSON(v);
+    }
+    return value;
+}
+function serializeArray(array, options) {
+    return array.map((v, index) => {
+        options.seenObjects.push({ propertyName: `index ${index}`, obj: null });
+        try {
+            return serializeValue(v, options);
+        }
+        finally {
+            options.seenObjects.pop();
+        }
+    });
+}
+function getISOString(date) {
+    const isoStr = date.toISOString();
+    return date.getUTCMilliseconds() !== 0 ? isoStr : isoStr.slice(0, -5) + 'Z';
+}
+function serializeValue(value, options) {
+    if (value instanceof Map || isMap(value)) {
+        const obj = Object.create(null);
+        for (const [k, v] of value) {
+            if (typeof k !== 'string') {
+                throw new BSONError('Can only serialize maps with string keys');
+            }
+            obj[k] = v;
+        }
+        return serializeValue(obj, options);
+    }
+    if ((typeof value === 'object' || typeof value === 'function') && value !== null) {
+        const index = options.seenObjects.findIndex(entry => entry.obj === value);
+        if (index !== -1) {
+            const props = options.seenObjects.map(entry => entry.propertyName);
+            const leadingPart = props
+                .slice(0, index)
+                .map(prop => `${prop} -> `)
+                .join('');
+            const alreadySeen = props[index];
+            const circularPart = ' -> ' +
+                props
+                    .slice(index + 1, props.length - 1)
+                    .map(prop => `${prop} -> `)
+                    .join('');
+            const current = props[props.length - 1];
+            const leadingSpace = ' '.repeat(leadingPart.length + alreadySeen.length / 2);
+            const dashes = '-'.repeat(circularPart.length + (alreadySeen.length + current.length) / 2 - 1);
+            throw new BSONError('Converting circular structure to EJSON:\n' +
+                `    ${leadingPart}${alreadySeen}${circularPart}${current}\n` +
+                `    ${leadingSpace}\\${dashes}/`);
+        }
+        options.seenObjects[options.seenObjects.length - 1].obj = value;
+    }
+    if (Array.isArray(value))
+        return serializeArray(value, options);
+    if (value === undefined)
+        return null;
+    if (value instanceof Date || isDate(value)) {
+        const dateNum = value.getTime(), inRange = dateNum > -1 && dateNum < 253402318800000;
+        if (options.legacy) {
+            return options.relaxed && inRange
+                ? { $date: value.getTime() }
+                : { $date: getISOString(value) };
+        }
+        return options.relaxed && inRange
+            ? { $date: getISOString(value) }
+            : { $date: { $numberLong: value.getTime().toString() } };
+    }
+    if (typeof value === 'number' && (!options.relaxed || !isFinite(value))) {
+        if (Number.isInteger(value) && !Object.is(value, -0)) {
+            if (value >= BSON_INT32_MIN && value <= BSON_INT32_MAX) {
+                return { $numberInt: value.toString() };
+            }
+            if (value >= BSON_INT64_MIN && value <= BSON_INT64_MAX) {
+                return { $numberLong: value.toString() };
+            }
+        }
+        return { $numberDouble: Object.is(value, -0) ? '-0.0' : value.toString() };
+    }
+    if (typeof value === 'bigint') {
+        if (!options.relaxed) {
+            return { $numberLong: BigInt.asIntN(64, value).toString() };
+        }
+        return Number(BigInt.asIntN(64, value));
+    }
+    if (value instanceof RegExp || isRegExp(value)) {
+        let flags = value.flags;
+        if (flags === undefined) {
+            const match = value.toString().match(/[gimuy]*$/);
+            if (match) {
+                flags = match[0];
+            }
+        }
+        const rx = new BSONRegExp(value.source, flags);
+        return rx.toExtendedJSON(options);
+    }
+    if (value != null && typeof value === 'object')
+        return serializeDocument(value, options);
+    return value;
+}
+const BSON_TYPE_MAPPINGS = {
+    Binary: (o) => new Binary(o.value(), o.sub_type),
+    Code: (o) => new Code(o.code, o.scope),
+    DBRef: (o) => new DBRef(o.collection || o.namespace, o.oid, o.db, o.fields),
+    Decimal128: (o) => new Decimal128(o.bytes),
+    Double: (o) => new Double(o.value),
+    Int32: (o) => new Int32(o.value),
+    Long: (o) => Long.fromBits(o.low != null ? o.low : o.low_, o.low != null ? o.high : o.high_, o.low != null ? o.unsigned : o.unsigned_),
+    MaxKey: () => new MaxKey(),
+    MinKey: () => new MinKey(),
+    ObjectId: (o) => new ObjectId(o),
+    BSONRegExp: (o) => new BSONRegExp(o.pattern, o.options),
+    BSONSymbol: (o) => new BSONSymbol(o.value),
+    Timestamp: (o) => Timestamp.fromBits(o.low, o.high)
+};
+function serializeDocument(doc, options) {
+    if (doc == null || typeof doc !== 'object')
+        throw new BSONError('not an object instance');
+    const bsontype = doc._bsontype;
+    if (typeof bsontype === 'undefined') {
+        const _doc = {};
+        for (const name of Object.keys(doc)) {
+            options.seenObjects.push({ propertyName: name, obj: null });
+            try {
+                const value = serializeValue(doc[name], options);
+                if (name === '__proto__') {
+                    Object.defineProperty(_doc, name, {
+                        value,
+                        writable: true,
+                        enumerable: true,
+                        configurable: true
+                    });
+                }
+                else {
+                    _doc[name] = value;
+                }
+            }
+            finally {
+                options.seenObjects.pop();
+            }
+        }
+        return _doc;
+    }
+    else if (doc != null &&
+        typeof doc === 'object' &&
+        typeof doc._bsontype === 'string' &&
+        doc[BSON_VERSION_SYMBOL] !== BSON_MAJOR_VERSION) {
+        throw new BSONVersionError();
+    }
+    else if (isBSONType(doc)) {
+        let outDoc = doc;
+        if (typeof outDoc.toExtendedJSON !== 'function') {
+            const mapper = BSON_TYPE_MAPPINGS[doc._bsontype];
+            if (!mapper) {
+                throw new BSONError('Unrecognized or invalid _bsontype: ' + doc._bsontype);
+            }
+            outDoc = mapper(outDoc);
+        }
+        if (bsontype === 'Code' && outDoc.scope) {
+            outDoc = new Code(outDoc.code, serializeValue(outDoc.scope, options));
+        }
+        else if (bsontype === 'DBRef' && outDoc.oid) {
+            outDoc = new DBRef(serializeValue(outDoc.collection, options), serializeValue(outDoc.oid, options), serializeValue(outDoc.db, options), serializeValue(outDoc.fields, options));
+        }
+        return outDoc.toExtendedJSON(options);
+    }
+    else {
+        throw new BSONError('_bsontype must be a string, but was: ' + typeof bsontype);
+    }
+}
+function parse(text, options) {
+    const ejsonOptions = {
+        useBigInt64: options?.useBigInt64 ?? false,
+        relaxed: options?.relaxed ?? true,
+        legacy: options?.legacy ?? false
+    };
+    return JSON.parse(text, (key, value) => {
+        if (key.indexOf('\x00') !== -1) {
+            throw new BSONError(`BSON Document field names cannot contain null bytes, found: ${JSON.stringify(key)}`);
+        }
+        return deserializeValue(value, ejsonOptions);
+    });
+}
+function stringify(value, replacer, space, options) {
+    if (space != null && typeof space === 'object') {
+        options = space;
+        space = 0;
+    }
+    if (replacer != null && typeof replacer === 'object' && !Array.isArray(replacer)) {
+        options = replacer;
+        replacer = undefined;
+        space = 0;
+    }
+    const serializeOptions = Object.assign({ relaxed: true, legacy: false }, options, {
+        seenObjects: [{ propertyName: '(root)', obj: null }]
+    });
+    const doc = serializeValue(value, serializeOptions);
+    return JSON.stringify(doc, replacer, space);
+}
+function EJSONserialize(value, options) {
+    options = options || {};
+    return JSON.parse(stringify(value, options));
+}
+function EJSONdeserialize(ejson, options) {
+    options = options || {};
+    return parse(JSON.stringify(ejson), options);
+}
+const EJSON = Object.create(null);
+EJSON.parse = parse;
+EJSON.stringify = stringify;
+EJSON.serialize = EJSONserialize;
+EJSON.deserialize = EJSONdeserialize;
+Object.freeze(EJSON);
+
+function getSize(source, offset) {
+    try {
+        return NumberUtils.getNonnegativeInt32LE(source, offset);
+    }
+    catch (cause) {
+        throw new BSONOffsetError('BSON size cannot be negative', offset, { cause });
+    }
+}
+function findNull(bytes, offset) {
+    let nullTerminatorOffset = offset;
+    for (; bytes[nullTerminatorOffset] !== 0x00; nullTerminatorOffset++)
+        ;
+    if (nullTerminatorOffset === bytes.length - 1) {
+        throw new BSONOffsetError('Null terminator not found', offset);
+    }
+    return nullTerminatorOffset;
+}
+function parseToElements(bytes, startOffset = 0) {
+    startOffset ??= 0;
+    if (bytes.length < 5) {
+        throw new BSONOffsetError(`Input must be at least 5 bytes, got ${bytes.length} bytes`, startOffset);
+    }
+    const documentSize = getSize(bytes, startOffset);
+    if (documentSize > bytes.length - startOffset) {
+        throw new BSONOffsetError(`Parsed documentSize (${documentSize} bytes) does not match input length (${bytes.length} bytes)`, startOffset);
+    }
+    if (bytes[startOffset + documentSize - 1] !== 0x00) {
+        throw new BSONOffsetError('BSON documents must end in 0x00', startOffset + documentSize);
+    }
+    const elements = [];
+    let offset = startOffset + 4;
+    while (offset <= documentSize + startOffset) {
+        const type = bytes[offset];
+        offset += 1;
+        if (type === 0) {
+            if (offset - startOffset !== documentSize) {
+                throw new BSONOffsetError(`Invalid 0x00 type byte`, offset);
+            }
+            break;
+        }
+        const nameOffset = offset;
+        const nameLength = findNull(bytes, offset) - nameOffset;
+        offset += nameLength + 1;
+        let length;
+        if (type === 1 ||
+            type === 18 ||
+            type === 9 ||
+            type === 17) {
+            length = 8;
+        }
+        else if (type === 16) {
+            length = 4;
+        }
+        else if (type === 7) {
+            length = 12;
+        }
+        else if (type === 19) {
+            length = 16;
+        }
+        else if (type === 8) {
+            length = 1;
+        }
+        else if (type === 10 ||
+            type === 6 ||
+            type === 127 ||
+            type === 255) {
+            length = 0;
+        }
+        else if (type === 11) {
+            length = findNull(bytes, findNull(bytes, offset) + 1) + 1 - offset;
+        }
+        else if (type === 3 ||
+            type === 4 ||
+            type === 15) {
+            length = getSize(bytes, offset);
+        }
+        else if (type === 2 ||
+            type === 5 ||
+            type === 12 ||
+            type === 13 ||
+            type === 14) {
+            length = getSize(bytes, offset) + 4;
+            if (type === 5) {
+                length += 1;
+            }
+            if (type === 12) {
+                length += 12;
+            }
+        }
+        else {
+            throw new BSONOffsetError(`Invalid 0x${type.toString(16).padStart(2, '0')} type byte`, offset);
+        }
+        if (length > documentSize) {
+            throw new BSONOffsetError('value reports length larger than document', offset);
+        }
+        elements.push([type, nameOffset, nameLength, offset, length]);
+        offset += length;
+    }
+    return elements;
+}
+
+const onDemand = Object.create(null);
+onDemand.parseToElements = parseToElements;
+onDemand.ByteUtils = ByteUtils;
+onDemand.NumberUtils = NumberUtils;
+Object.freeze(onDemand);
+
+const MAXSIZE = 1024 * 1024 * 17;
+let buffer = ByteUtils.allocate(MAXSIZE);
+function setInternalBufferSize(size) {
+    if (buffer.length < size) {
+        buffer = ByteUtils.allocate(size);
+    }
+}
+function serialize(object, options = {}) {
+    const checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false;
+    const serializeFunctions = typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false;
+    const ignoreUndefined = typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true;
+    const minInternalBufferSize = typeof options.minInternalBufferSize === 'number' ? options.minInternalBufferSize : MAXSIZE;
+    if (buffer.length < minInternalBufferSize) {
+        buffer = ByteUtils.allocate(minInternalBufferSize);
+    }
+    const serializationIndex = serializeInto(buffer, object, checkKeys, 0, 0, serializeFunctions, ignoreUndefined, null);
+    const finishedBuffer = ByteUtils.allocateUnsafe(serializationIndex);
+    finishedBuffer.set(buffer.subarray(0, serializationIndex), 0);
+    return finishedBuffer;
+}
+function serializeWithBufferAndIndex(object, finalBuffer, options = {}) {
+    const checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false;
+    const serializeFunctions = typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false;
+    const ignoreUndefined = typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true;
+    const startIndex = typeof options.index === 'number' ? options.index : 0;
+    const serializationIndex = serializeInto(buffer, object, checkKeys, 0, 0, serializeFunctions, ignoreUndefined, null);
+    finalBuffer.set(buffer.subarray(0, serializationIndex), startIndex);
+    return startIndex + serializationIndex - 1;
+}
+function deserialize(buffer, options = {}) {
+    return internalDeserialize(ByteUtils.toLocalBufferType(buffer), options);
+}
+function calculateObjectSize(object, options = {}) {
+    options = options || {};
+    const serializeFunctions = typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false;
+    const ignoreUndefined = typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true;
+    return internalCalculateObjectSize(object, serializeFunctions, ignoreUndefined);
+}
+function deserializeStream(data, startIndex, numberOfDocuments, documents, docStartIndex, options) {
+    const internalOptions = Object.assign({ allowObjectSmallerThanBufferSize: true, index: 0 }, options);
+    const bufferData = ByteUtils.toLocalBufferType(data);
+    let index = startIndex;
+    for (let i = 0; i < numberOfDocuments; i++) {
+        const size = NumberUtils.getInt32LE(bufferData, index);
+        internalOptions.index = index;
+        documents[docStartIndex + i] = internalDeserialize(bufferData, internalOptions);
+        index = index + size;
+    }
+    return index;
+}
+
+var bson = /*#__PURE__*/Object.freeze({
+__proto__: null,
+BSONError: BSONError,
+BSONOffsetError: BSONOffsetError,
+BSONRegExp: BSONRegExp,
+BSONRuntimeError: BSONRuntimeError,
+BSONSymbol: BSONSymbol,
+BSONType: BSONType,
+BSONValue: BSONValue,
+BSONVersionError: BSONVersionError,
+Binary: Binary,
+Code: Code,
+DBRef: DBRef,
+Decimal128: Decimal128,
+Double: Double,
+EJSON: EJSON,
+Int32: Int32,
+Long: Long,
+MaxKey: MaxKey,
+MinKey: MinKey,
+ObjectId: ObjectId,
+Timestamp: Timestamp,
+UUID: UUID,
+calculateObjectSize: calculateObjectSize,
+deserialize: deserialize,
+deserializeStream: deserializeStream,
+onDemand: onDemand,
+serialize: serialize,
+serializeWithBufferAndIndex: serializeWithBufferAndIndex,
+setInternalBufferSize: setInternalBufferSize
+});
+
+exports.BSON = bson;
+exports.BSONError = BSONError;
+exports.BSONOffsetError = BSONOffsetError;
+exports.BSONRegExp = BSONRegExp;
+exports.BSONRuntimeError = BSONRuntimeError;
+exports.BSONSymbol = BSONSymbol;
+exports.BSONType = BSONType;
+exports.BSONValue = BSONValue;
+exports.BSONVersionError = BSONVersionError;
+exports.Binary = Binary;
+exports.Code = Code;
+exports.DBRef = DBRef;
+exports.Decimal128 = Decimal128;
+exports.Double = Double;
+exports.EJSON = EJSON;
+exports.Int32 = Int32;
+exports.Long = Long;
+exports.MaxKey = MaxKey;
+exports.MinKey = MinKey;
+exports.ObjectId = ObjectId;
+exports.Timestamp = Timestamp;
+exports.UUID = UUID;
+exports.calculateObjectSize = calculateObjectSize;
+exports.deserialize = deserialize;
+exports.deserializeStream = deserializeStream;
+exports.onDemand = onDemand;
+exports.serialize = serialize;
+exports.serializeWithBufferAndIndex = serializeWithBufferAndIndex;
+exports.setInternalBufferSize = setInternalBufferSize;
+
+return exports;
+
+})({});
+//# sourceMappingURL=bson.bundle.js.map
diff --git a/backend/node_modules/bson/lib/bson.bundle.js.map b/backend/node_modules/bson/lib/bson.bundle.js.map
new file mode 100644
index 0000000..b01d8d2
--- /dev/null
+++ b/backend/node_modules/bson/lib/bson.bundle.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/bson/lib/bson.cjs b/backend/node_modules/bson/lib/bson.cjs
new file mode 100644
index 0000000..893118b
--- /dev/null
+++ b/backend/node_modules/bson/lib/bson.cjs
@@ -0,0 +1,4593 @@
+'use strict';
+
+const TypedArrayPrototypeGetSymbolToStringTag = (() => {
+    const g = Object.getOwnPropertyDescriptor(Object.getPrototypeOf(Uint8Array.prototype), Symbol.toStringTag).get;
+    return (value) => g.call(value);
+})();
+function isUint8Array(value) {
+    return TypedArrayPrototypeGetSymbolToStringTag(value) === 'Uint8Array';
+}
+function isAnyArrayBuffer(value) {
+    return (typeof value === 'object' &&
+        value != null &&
+        Symbol.toStringTag in value &&
+        (value[Symbol.toStringTag] === 'ArrayBuffer' ||
+            value[Symbol.toStringTag] === 'SharedArrayBuffer'));
+}
+function isRegExp(regexp) {
+    return regexp instanceof RegExp || Object.prototype.toString.call(regexp) === '[object RegExp]';
+}
+function isMap(value) {
+    return (typeof value === 'object' &&
+        value != null &&
+        Symbol.toStringTag in value &&
+        value[Symbol.toStringTag] === 'Map');
+}
+function isDate(date) {
+    return date instanceof Date || Object.prototype.toString.call(date) === '[object Date]';
+}
+function defaultInspect(x, _options) {
+    return JSON.stringify(x, (k, v) => {
+        if (typeof v === 'bigint') {
+            return { $numberLong: `${v}` };
+        }
+        else if (isMap(v)) {
+            return Object.fromEntries(v);
+        }
+        return v;
+    });
+}
+function getStylizeFunction(options) {
+    const stylizeExists = options != null &&
+        typeof options === 'object' &&
+        'stylize' in options &&
+        typeof options.stylize === 'function';
+    if (stylizeExists) {
+        return options.stylize;
+    }
+}
+
+const BSON_MAJOR_VERSION = 6;
+const BSON_VERSION_SYMBOL = Symbol.for('@@mdb.bson.version');
+const BSON_INT32_MAX = 0x7fffffff;
+const BSON_INT32_MIN = -0x80000000;
+const BSON_INT64_MAX = Math.pow(2, 63) - 1;
+const BSON_INT64_MIN = -Math.pow(2, 63);
+const JS_INT_MAX = Math.pow(2, 53);
+const JS_INT_MIN = -Math.pow(2, 53);
+const BSON_DATA_NUMBER = 1;
+const BSON_DATA_STRING = 2;
+const BSON_DATA_OBJECT = 3;
+const BSON_DATA_ARRAY = 4;
+const BSON_DATA_BINARY = 5;
+const BSON_DATA_UNDEFINED = 6;
+const BSON_DATA_OID = 7;
+const BSON_DATA_BOOLEAN = 8;
+const BSON_DATA_DATE = 9;
+const BSON_DATA_NULL = 10;
+const BSON_DATA_REGEXP = 11;
+const BSON_DATA_DBPOINTER = 12;
+const BSON_DATA_CODE = 13;
+const BSON_DATA_SYMBOL = 14;
+const BSON_DATA_CODE_W_SCOPE = 15;
+const BSON_DATA_INT = 16;
+const BSON_DATA_TIMESTAMP = 17;
+const BSON_DATA_LONG = 18;
+const BSON_DATA_DECIMAL128 = 19;
+const BSON_DATA_MIN_KEY = 0xff;
+const BSON_DATA_MAX_KEY = 0x7f;
+const BSON_BINARY_SUBTYPE_DEFAULT = 0;
+const BSON_BINARY_SUBTYPE_UUID_NEW = 4;
+const BSONType = Object.freeze({
+    double: 1,
+    string: 2,
+    object: 3,
+    array: 4,
+    binData: 5,
+    undefined: 6,
+    objectId: 7,
+    bool: 8,
+    date: 9,
+    null: 10,
+    regex: 11,
+    dbPointer: 12,
+    javascript: 13,
+    symbol: 14,
+    javascriptWithScope: 15,
+    int: 16,
+    timestamp: 17,
+    long: 18,
+    decimal: 19,
+    minKey: -1,
+    maxKey: 127
+});
+
+class BSONError extends Error {
+    get bsonError() {
+        return true;
+    }
+    get name() {
+        return 'BSONError';
+    }
+    constructor(message, options) {
+        super(message, options);
+    }
+    static isBSONError(value) {
+        return (value != null &&
+            typeof value === 'object' &&
+            'bsonError' in value &&
+            value.bsonError === true &&
+            'name' in value &&
+            'message' in value &&
+            'stack' in value);
+    }
+}
+class BSONVersionError extends BSONError {
+    get name() {
+        return 'BSONVersionError';
+    }
+    constructor() {
+        super(`Unsupported BSON version, bson types must be from bson ${BSON_MAJOR_VERSION}.x.x`);
+    }
+}
+class BSONRuntimeError extends BSONError {
+    get name() {
+        return 'BSONRuntimeError';
+    }
+    constructor(message) {
+        super(message);
+    }
+}
+class BSONOffsetError extends BSONError {
+    get name() {
+        return 'BSONOffsetError';
+    }
+    constructor(message, offset, options) {
+        super(`${message}. offset: ${offset}`, options);
+        this.offset = offset;
+    }
+}
+
+let TextDecoderFatal;
+let TextDecoderNonFatal;
+function parseUtf8(buffer, start, end, fatal) {
+    if (fatal) {
+        TextDecoderFatal ??= new TextDecoder('utf8', { fatal: true });
+        try {
+            return TextDecoderFatal.decode(buffer.subarray(start, end));
+        }
+        catch (cause) {
+            throw new BSONError('Invalid UTF-8 string in BSON document', { cause });
+        }
+    }
+    TextDecoderNonFatal ??= new TextDecoder('utf8', { fatal: false });
+    return TextDecoderNonFatal.decode(buffer.subarray(start, end));
+}
+
+function tryReadBasicLatin(uint8array, start, end) {
+    if (uint8array.length === 0) {
+        return '';
+    }
+    const stringByteLength = end - start;
+    if (stringByteLength === 0) {
+        return '';
+    }
+    if (stringByteLength > 20) {
+        return null;
+    }
+    if (stringByteLength === 1 && uint8array[start] < 128) {
+        return String.fromCharCode(uint8array[start]);
+    }
+    if (stringByteLength === 2 && uint8array[start] < 128 && uint8array[start + 1] < 128) {
+        return String.fromCharCode(uint8array[start]) + String.fromCharCode(uint8array[start + 1]);
+    }
+    if (stringByteLength === 3 &&
+        uint8array[start] < 128 &&
+        uint8array[start + 1] < 128 &&
+        uint8array[start + 2] < 128) {
+        return (String.fromCharCode(uint8array[start]) +
+            String.fromCharCode(uint8array[start + 1]) +
+            String.fromCharCode(uint8array[start + 2]));
+    }
+    const latinBytes = [];
+    for (let i = start; i < end; i++) {
+        const byte = uint8array[i];
+        if (byte > 127) {
+            return null;
+        }
+        latinBytes.push(byte);
+    }
+    return String.fromCharCode(...latinBytes);
+}
+function tryWriteBasicLatin(destination, source, offset) {
+    if (source.length === 0)
+        return 0;
+    if (source.length > 25)
+        return null;
+    if (destination.length - offset < source.length)
+        return null;
+    for (let charOffset = 0, destinationOffset = offset; charOffset < source.length; charOffset++, destinationOffset++) {
+        const char = source.charCodeAt(charOffset);
+        if (char > 127)
+            return null;
+        destination[destinationOffset] = char;
+    }
+    return source.length;
+}
+
+function nodejsMathRandomBytes(byteLength) {
+    return nodeJsByteUtils.fromNumberArray(Array.from({ length: byteLength }, () => Math.floor(Math.random() * 256)));
+}
+const nodejsRandomBytes = (() => {
+    try {
+        return require('crypto').randomBytes;
+    }
+    catch {
+        return nodejsMathRandomBytes;
+    }
+})();
+const nodeJsByteUtils = {
+    toLocalBufferType(potentialBuffer) {
+        if (Buffer.isBuffer(potentialBuffer)) {
+            return potentialBuffer;
+        }
+        if (ArrayBuffer.isView(potentialBuffer)) {
+            return Buffer.from(potentialBuffer.buffer, potentialBuffer.byteOffset, potentialBuffer.byteLength);
+        }
+        const stringTag = potentialBuffer?.[Symbol.toStringTag] ?? Object.prototype.toString.call(potentialBuffer);
+        if (stringTag === 'ArrayBuffer' ||
+            stringTag === 'SharedArrayBuffer' ||
+            stringTag === '[object ArrayBuffer]' ||
+            stringTag === '[object SharedArrayBuffer]') {
+            return Buffer.from(potentialBuffer);
+        }
+        throw new BSONError(`Cannot create Buffer from the passed potentialBuffer.`);
+    },
+    allocate(size) {
+        return Buffer.alloc(size);
+    },
+    allocateUnsafe(size) {
+        return Buffer.allocUnsafe(size);
+    },
+    equals(a, b) {
+        return nodeJsByteUtils.toLocalBufferType(a).equals(b);
+    },
+    fromNumberArray(array) {
+        return Buffer.from(array);
+    },
+    fromBase64(base64) {
+        return Buffer.from(base64, 'base64');
+    },
+    toBase64(buffer) {
+        return nodeJsByteUtils.toLocalBufferType(buffer).toString('base64');
+    },
+    fromISO88591(codePoints) {
+        return Buffer.from(codePoints, 'binary');
+    },
+    toISO88591(buffer) {
+        return nodeJsByteUtils.toLocalBufferType(buffer).toString('binary');
+    },
+    fromHex(hex) {
+        return Buffer.from(hex, 'hex');
+    },
+    toHex(buffer) {
+        return nodeJsByteUtils.toLocalBufferType(buffer).toString('hex');
+    },
+    toUTF8(buffer, start, end, fatal) {
+        const basicLatin = end - start <= 20 ? tryReadBasicLatin(buffer, start, end) : null;
+        if (basicLatin != null) {
+            return basicLatin;
+        }
+        const string = nodeJsByteUtils.toLocalBufferType(buffer).toString('utf8', start, end);
+        if (fatal) {
+            for (let i = 0; i < string.length; i++) {
+                if (string.charCodeAt(i) === 0xfffd) {
+                    parseUtf8(buffer, start, end, true);
+                    break;
+                }
+            }
+        }
+        return string;
+    },
+    utf8ByteLength(input) {
+        return Buffer.byteLength(input, 'utf8');
+    },
+    encodeUTF8Into(buffer, source, byteOffset) {
+        const latinBytesWritten = tryWriteBasicLatin(buffer, source, byteOffset);
+        if (latinBytesWritten != null) {
+            return latinBytesWritten;
+        }
+        return nodeJsByteUtils.toLocalBufferType(buffer).write(source, byteOffset, undefined, 'utf8');
+    },
+    randomBytes: nodejsRandomBytes,
+    swap32(buffer) {
+        return nodeJsByteUtils.toLocalBufferType(buffer).swap32();
+    }
+};
+
+function isReactNative() {
+    const { navigator } = globalThis;
+    return typeof navigator === 'object' && navigator.product === 'ReactNative';
+}
+function webMathRandomBytes(byteLength) {
+    if (byteLength < 0) {
+        throw new RangeError(`The argument 'byteLength' is invalid. Received ${byteLength}`);
+    }
+    return webByteUtils.fromNumberArray(Array.from({ length: byteLength }, () => Math.floor(Math.random() * 256)));
+}
+const webRandomBytes = (() => {
+    const { crypto } = globalThis;
+    if (crypto != null && typeof crypto.getRandomValues === 'function') {
+        return (byteLength) => {
+            return crypto.getRandomValues(webByteUtils.allocate(byteLength));
+        };
+    }
+    else {
+        if (isReactNative()) {
+            const { console } = globalThis;
+            console?.warn?.('BSON: For React Native please polyfill crypto.getRandomValues, e.g. using: https://www.npmjs.com/package/react-native-get-random-values.');
+        }
+        return webMathRandomBytes;
+    }
+})();
+const HEX_DIGIT = /(\d|[a-f])/i;
+const webByteUtils = {
+    toLocalBufferType(potentialUint8array) {
+        const stringTag = potentialUint8array?.[Symbol.toStringTag] ??
+            Object.prototype.toString.call(potentialUint8array);
+        if (stringTag === 'Uint8Array') {
+            return potentialUint8array;
+        }
+        if (ArrayBuffer.isView(potentialUint8array)) {
+            return new Uint8Array(potentialUint8array.buffer.slice(potentialUint8array.byteOffset, potentialUint8array.byteOffset + potentialUint8array.byteLength));
+        }
+        if (stringTag === 'ArrayBuffer' ||
+            stringTag === 'SharedArrayBuffer' ||
+            stringTag === '[object ArrayBuffer]' ||
+            stringTag === '[object SharedArrayBuffer]') {
+            return new Uint8Array(potentialUint8array);
+        }
+        throw new BSONError(`Cannot make a Uint8Array from passed potentialBuffer.`);
+    },
+    allocate(size) {
+        if (typeof size !== 'number') {
+            throw new TypeError(`The "size" argument must be of type number. Received ${String(size)}`);
+        }
+        return new Uint8Array(size);
+    },
+    allocateUnsafe(size) {
+        return webByteUtils.allocate(size);
+    },
+    equals(a, b) {
+        if (a.byteLength !== b.byteLength) {
+            return false;
+        }
+        for (let i = 0; i < a.byteLength; i++) {
+            if (a[i] !== b[i]) {
+                return false;
+            }
+        }
+        return true;
+    },
+    fromNumberArray(array) {
+        return Uint8Array.from(array);
+    },
+    fromBase64(base64) {
+        return Uint8Array.from(atob(base64), c => c.charCodeAt(0));
+    },
+    toBase64(uint8array) {
+        return btoa(webByteUtils.toISO88591(uint8array));
+    },
+    fromISO88591(codePoints) {
+        return Uint8Array.from(codePoints, c => c.charCodeAt(0) & 0xff);
+    },
+    toISO88591(uint8array) {
+        return Array.from(Uint16Array.from(uint8array), b => String.fromCharCode(b)).join('');
+    },
+    fromHex(hex) {
+        const evenLengthHex = hex.length % 2 === 0 ? hex : hex.slice(0, hex.length - 1);
+        const buffer = [];
+        for (let i = 0; i < evenLengthHex.length; i += 2) {
+            const firstDigit = evenLengthHex[i];
+            const secondDigit = evenLengthHex[i + 1];
+            if (!HEX_DIGIT.test(firstDigit)) {
+                break;
+            }
+            if (!HEX_DIGIT.test(secondDigit)) {
+                break;
+            }
+            const hexDigit = Number.parseInt(`${firstDigit}${secondDigit}`, 16);
+            buffer.push(hexDigit);
+        }
+        return Uint8Array.from(buffer);
+    },
+    toHex(uint8array) {
+        return Array.from(uint8array, byte => byte.toString(16).padStart(2, '0')).join('');
+    },
+    toUTF8(uint8array, start, end, fatal) {
+        const basicLatin = end - start <= 20 ? tryReadBasicLatin(uint8array, start, end) : null;
+        if (basicLatin != null) {
+            return basicLatin;
+        }
+        return parseUtf8(uint8array, start, end, fatal);
+    },
+    utf8ByteLength(input) {
+        return new TextEncoder().encode(input).byteLength;
+    },
+    encodeUTF8Into(uint8array, source, byteOffset) {
+        const bytes = new TextEncoder().encode(source);
+        uint8array.set(bytes, byteOffset);
+        return bytes.byteLength;
+    },
+    randomBytes: webRandomBytes,
+    swap32(buffer) {
+        if (buffer.length % 4 !== 0) {
+            throw new RangeError('Buffer size must be a multiple of 32-bits');
+        }
+        for (let i = 0; i < buffer.length; i += 4) {
+            const byte0 = buffer[i];
+            const byte1 = buffer[i + 1];
+            const byte2 = buffer[i + 2];
+            const byte3 = buffer[i + 3];
+            buffer[i] = byte3;
+            buffer[i + 1] = byte2;
+            buffer[i + 2] = byte1;
+            buffer[i + 3] = byte0;
+        }
+        return buffer;
+    }
+};
+
+const hasGlobalBuffer = typeof Buffer === 'function' && Buffer.prototype?._isBuffer !== true;
+const ByteUtils = hasGlobalBuffer ? nodeJsByteUtils : webByteUtils;
+
+class BSONValue {
+    get [BSON_VERSION_SYMBOL]() {
+        return BSON_MAJOR_VERSION;
+    }
+    [Symbol.for('nodejs.util.inspect.custom')](depth, options, inspect) {
+        return this.inspect(depth, options, inspect);
+    }
+}
+
+const FLOAT = new Float64Array(1);
+const FLOAT_BYTES = new Uint8Array(FLOAT.buffer, 0, 8);
+FLOAT[0] = -1;
+const isBigEndian = FLOAT_BYTES[7] === 0;
+const NumberUtils = {
+    isBigEndian,
+    getNonnegativeInt32LE(source, offset) {
+        if (source[offset + 3] > 127) {
+            throw new RangeError(`Size cannot be negative at offset: ${offset}`);
+        }
+        return (source[offset] |
+            (source[offset + 1] << 8) |
+            (source[offset + 2] << 16) |
+            (source[offset + 3] << 24));
+    },
+    getInt32LE(source, offset) {
+        return (source[offset] |
+            (source[offset + 1] << 8) |
+            (source[offset + 2] << 16) |
+            (source[offset + 3] << 24));
+    },
+    getUint32LE(source, offset) {
+        return (source[offset] +
+            source[offset + 1] * 256 +
+            source[offset + 2] * 65536 +
+            source[offset + 3] * 16777216);
+    },
+    getUint32BE(source, offset) {
+        return (source[offset + 3] +
+            source[offset + 2] * 256 +
+            source[offset + 1] * 65536 +
+            source[offset] * 16777216);
+    },
+    getBigInt64LE(source, offset) {
+        const lo = NumberUtils.getUint32LE(source, offset);
+        const hi = NumberUtils.getUint32LE(source, offset + 4);
+        return (BigInt(hi) << BigInt(32)) + BigInt(lo);
+    },
+    getFloat64LE: isBigEndian
+        ? (source, offset) => {
+            FLOAT_BYTES[7] = source[offset];
+            FLOAT_BYTES[6] = source[offset + 1];
+            FLOAT_BYTES[5] = source[offset + 2];
+            FLOAT_BYTES[4] = source[offset + 3];
+            FLOAT_BYTES[3] = source[offset + 4];
+            FLOAT_BYTES[2] = source[offset + 5];
+            FLOAT_BYTES[1] = source[offset + 6];
+            FLOAT_BYTES[0] = source[offset + 7];
+            return FLOAT[0];
+        }
+        : (source, offset) => {
+            FLOAT_BYTES[0] = source[offset];
+            FLOAT_BYTES[1] = source[offset + 1];
+            FLOAT_BYTES[2] = source[offset + 2];
+            FLOAT_BYTES[3] = source[offset + 3];
+            FLOAT_BYTES[4] = source[offset + 4];
+            FLOAT_BYTES[5] = source[offset + 5];
+            FLOAT_BYTES[6] = source[offset + 6];
+            FLOAT_BYTES[7] = source[offset + 7];
+            return FLOAT[0];
+        },
+    setInt32BE(destination, offset, value) {
+        destination[offset + 3] = value;
+        value >>>= 8;
+        destination[offset + 2] = value;
+        value >>>= 8;
+        destination[offset + 1] = value;
+        value >>>= 8;
+        destination[offset] = value;
+        return 4;
+    },
+    setInt32LE(destination, offset, value) {
+        destination[offset] = value;
+        value >>>= 8;
+        destination[offset + 1] = value;
+        value >>>= 8;
+        destination[offset + 2] = value;
+        value >>>= 8;
+        destination[offset + 3] = value;
+        return 4;
+    },
+    setBigInt64LE(destination, offset, value) {
+        const mask32bits = BigInt(0xffff_ffff);
+        let lo = Number(value & mask32bits);
+        destination[offset] = lo;
+        lo >>= 8;
+        destination[offset + 1] = lo;
+        lo >>= 8;
+        destination[offset + 2] = lo;
+        lo >>= 8;
+        destination[offset + 3] = lo;
+        let hi = Number((value >> BigInt(32)) & mask32bits);
+        destination[offset + 4] = hi;
+        hi >>= 8;
+        destination[offset + 5] = hi;
+        hi >>= 8;
+        destination[offset + 6] = hi;
+        hi >>= 8;
+        destination[offset + 7] = hi;
+        return 8;
+    },
+    setFloat64LE: isBigEndian
+        ? (destination, offset, value) => {
+            FLOAT[0] = value;
+            destination[offset] = FLOAT_BYTES[7];
+            destination[offset + 1] = FLOAT_BYTES[6];
+            destination[offset + 2] = FLOAT_BYTES[5];
+            destination[offset + 3] = FLOAT_BYTES[4];
+            destination[offset + 4] = FLOAT_BYTES[3];
+            destination[offset + 5] = FLOAT_BYTES[2];
+            destination[offset + 6] = FLOAT_BYTES[1];
+            destination[offset + 7] = FLOAT_BYTES[0];
+            return 8;
+        }
+        : (destination, offset, value) => {
+            FLOAT[0] = value;
+            destination[offset] = FLOAT_BYTES[0];
+            destination[offset + 1] = FLOAT_BYTES[1];
+            destination[offset + 2] = FLOAT_BYTES[2];
+            destination[offset + 3] = FLOAT_BYTES[3];
+            destination[offset + 4] = FLOAT_BYTES[4];
+            destination[offset + 5] = FLOAT_BYTES[5];
+            destination[offset + 6] = FLOAT_BYTES[6];
+            destination[offset + 7] = FLOAT_BYTES[7];
+            return 8;
+        }
+};
+
+class Binary extends BSONValue {
+    get _bsontype() {
+        return 'Binary';
+    }
+    constructor(buffer, subType) {
+        super();
+        if (!(buffer == null) &&
+            typeof buffer === 'string' &&
+            !ArrayBuffer.isView(buffer) &&
+            !isAnyArrayBuffer(buffer) &&
+            !Array.isArray(buffer)) {
+            throw new BSONError('Binary can only be constructed from Uint8Array or number[]');
+        }
+        this.sub_type = subType ?? Binary.BSON_BINARY_SUBTYPE_DEFAULT;
+        if (buffer == null) {
+            this.buffer = ByteUtils.allocate(Binary.BUFFER_SIZE);
+            this.position = 0;
+        }
+        else {
+            this.buffer = Array.isArray(buffer)
+                ? ByteUtils.fromNumberArray(buffer)
+                : ByteUtils.toLocalBufferType(buffer);
+            this.position = this.buffer.byteLength;
+        }
+    }
+    put(byteValue) {
+        if (typeof byteValue === 'string' && byteValue.length !== 1) {
+            throw new BSONError('only accepts single character String');
+        }
+        else if (typeof byteValue !== 'number' && byteValue.length !== 1)
+            throw new BSONError('only accepts single character Uint8Array or Array');
+        let decodedByte;
+        if (typeof byteValue === 'string') {
+            decodedByte = byteValue.charCodeAt(0);
+        }
+        else if (typeof byteValue === 'number') {
+            decodedByte = byteValue;
+        }
+        else {
+            decodedByte = byteValue[0];
+        }
+        if (decodedByte < 0 || decodedByte > 255) {
+            throw new BSONError('only accepts number in a valid unsigned byte range 0-255');
+        }
+        if (this.buffer.byteLength > this.position) {
+            this.buffer[this.position++] = decodedByte;
+        }
+        else {
+            const newSpace = ByteUtils.allocate(Binary.BUFFER_SIZE + this.buffer.length);
+            newSpace.set(this.buffer, 0);
+            this.buffer = newSpace;
+            this.buffer[this.position++] = decodedByte;
+        }
+    }
+    write(sequence, offset) {
+        offset = typeof offset === 'number' ? offset : this.position;
+        if (this.buffer.byteLength < offset + sequence.length) {
+            const newSpace = ByteUtils.allocate(this.buffer.byteLength + sequence.length);
+            newSpace.set(this.buffer, 0);
+            this.buffer = newSpace;
+        }
+        if (ArrayBuffer.isView(sequence)) {
+            this.buffer.set(ByteUtils.toLocalBufferType(sequence), offset);
+            this.position =
+                offset + sequence.byteLength > this.position ? offset + sequence.length : this.position;
+        }
+        else if (typeof sequence === 'string') {
+            throw new BSONError('input cannot be string');
+        }
+    }
+    read(position, length) {
+        length = length && length > 0 ? length : this.position;
+        const end = position + length;
+        return this.buffer.subarray(position, end > this.position ? this.position : end);
+    }
+    value() {
+        return this.buffer.length === this.position
+            ? this.buffer
+            : this.buffer.subarray(0, this.position);
+    }
+    length() {
+        return this.position;
+    }
+    toJSON() {
+        return ByteUtils.toBase64(this.buffer.subarray(0, this.position));
+    }
+    toString(encoding) {
+        if (encoding === 'hex')
+            return ByteUtils.toHex(this.buffer.subarray(0, this.position));
+        if (encoding === 'base64')
+            return ByteUtils.toBase64(this.buffer.subarray(0, this.position));
+        if (encoding === 'utf8' || encoding === 'utf-8')
+            return ByteUtils.toUTF8(this.buffer, 0, this.position, false);
+        return ByteUtils.toUTF8(this.buffer, 0, this.position, false);
+    }
+    toExtendedJSON(options) {
+        options = options || {};
+        if (this.sub_type === Binary.SUBTYPE_VECTOR) {
+            validateBinaryVector(this);
+        }
+        const base64String = ByteUtils.toBase64(this.buffer);
+        const subType = Number(this.sub_type).toString(16);
+        if (options.legacy) {
+            return {
+                $binary: base64String,
+                $type: subType.length === 1 ? '0' + subType : subType
+            };
+        }
+        return {
+            $binary: {
+                base64: base64String,
+                subType: subType.length === 1 ? '0' + subType : subType
+            }
+        };
+    }
+    toUUID() {
+        if (this.sub_type === Binary.SUBTYPE_UUID) {
+            return new UUID(this.buffer.subarray(0, this.position));
+        }
+        throw new BSONError(`Binary sub_type "${this.sub_type}" is not supported for converting to UUID. Only "${Binary.SUBTYPE_UUID}" is currently supported.`);
+    }
+    static createFromHexString(hex, subType) {
+        return new Binary(ByteUtils.fromHex(hex), subType);
+    }
+    static createFromBase64(base64, subType) {
+        return new Binary(ByteUtils.fromBase64(base64), subType);
+    }
+    static fromExtendedJSON(doc, options) {
+        options = options || {};
+        let data;
+        let type;
+        if ('$binary' in doc) {
+            if (options.legacy && typeof doc.$binary === 'string' && '$type' in doc) {
+                type = doc.$type ? parseInt(doc.$type, 16) : 0;
+                data = ByteUtils.fromBase64(doc.$binary);
+            }
+            else {
+                if (typeof doc.$binary !== 'string') {
+                    type = doc.$binary.subType ? parseInt(doc.$binary.subType, 16) : 0;
+                    data = ByteUtils.fromBase64(doc.$binary.base64);
+                }
+            }
+        }
+        else if ('$uuid' in doc) {
+            type = 4;
+            data = UUID.bytesFromString(doc.$uuid);
+        }
+        if (!data) {
+            throw new BSONError(`Unexpected Binary Extended JSON format ${JSON.stringify(doc)}`);
+        }
+        return type === BSON_BINARY_SUBTYPE_UUID_NEW ? new UUID(data) : new Binary(data, type);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        const base64 = ByteUtils.toBase64(this.buffer.subarray(0, this.position));
+        const base64Arg = inspect(base64, options);
+        const subTypeArg = inspect(this.sub_type, options);
+        return `Binary.createFromBase64(${base64Arg}, ${subTypeArg})`;
+    }
+    toInt8Array() {
+        if (this.sub_type !== Binary.SUBTYPE_VECTOR) {
+            throw new BSONError('Binary sub_type is not Vector');
+        }
+        if (this.buffer[0] !== Binary.VECTOR_TYPE.Int8) {
+            throw new BSONError('Binary datatype field is not Int8');
+        }
+        return new Int8Array(this.buffer.buffer.slice(this.buffer.byteOffset + 2, this.buffer.byteOffset + this.position));
+    }
+    toFloat32Array() {
+        if (this.sub_type !== Binary.SUBTYPE_VECTOR) {
+            throw new BSONError('Binary sub_type is not Vector');
+        }
+        if (this.buffer[0] !== Binary.VECTOR_TYPE.Float32) {
+            throw new BSONError('Binary datatype field is not Float32');
+        }
+        const floatBytes = new Uint8Array(this.buffer.buffer.slice(this.buffer.byteOffset + 2, this.buffer.byteOffset + this.position));
+        if (NumberUtils.isBigEndian)
+            ByteUtils.swap32(floatBytes);
+        return new Float32Array(floatBytes.buffer);
+    }
+    toPackedBits() {
+        if (this.sub_type !== Binary.SUBTYPE_VECTOR) {
+            throw new BSONError('Binary sub_type is not Vector');
+        }
+        if (this.buffer[0] !== Binary.VECTOR_TYPE.PackedBit) {
+            throw new BSONError('Binary datatype field is not packed bit');
+        }
+        return new Uint8Array(this.buffer.buffer.slice(this.buffer.byteOffset + 2, this.buffer.byteOffset + this.position));
+    }
+    toBits() {
+        if (this.sub_type !== Binary.SUBTYPE_VECTOR) {
+            throw new BSONError('Binary sub_type is not Vector');
+        }
+        if (this.buffer[0] !== Binary.VECTOR_TYPE.PackedBit) {
+            throw new BSONError('Binary datatype field is not packed bit');
+        }
+        const byteCount = this.length() - 2;
+        const bitCount = byteCount * 8 - this.buffer[1];
+        const bits = new Int8Array(bitCount);
+        for (let bitOffset = 0; bitOffset < bits.length; bitOffset++) {
+            const byteOffset = (bitOffset / 8) | 0;
+            const byte = this.buffer[byteOffset + 2];
+            const shift = 7 - (bitOffset % 8);
+            const bit = (byte >> shift) & 1;
+            bits[bitOffset] = bit;
+        }
+        return bits;
+    }
+    static fromInt8Array(array) {
+        const buffer = ByteUtils.allocate(array.byteLength + 2);
+        buffer[0] = Binary.VECTOR_TYPE.Int8;
+        buffer[1] = 0;
+        const intBytes = new Uint8Array(array.buffer, array.byteOffset, array.byteLength);
+        buffer.set(intBytes, 2);
+        return new this(buffer, this.SUBTYPE_VECTOR);
+    }
+    static fromFloat32Array(array) {
+        const binaryBytes = ByteUtils.allocate(array.byteLength + 2);
+        binaryBytes[0] = Binary.VECTOR_TYPE.Float32;
+        binaryBytes[1] = 0;
+        const floatBytes = new Uint8Array(array.buffer, array.byteOffset, array.byteLength);
+        binaryBytes.set(floatBytes, 2);
+        if (NumberUtils.isBigEndian)
+            ByteUtils.swap32(new Uint8Array(binaryBytes.buffer, 2));
+        return new this(binaryBytes, this.SUBTYPE_VECTOR);
+    }
+    static fromPackedBits(array, padding = 0) {
+        const buffer = ByteUtils.allocate(array.byteLength + 2);
+        buffer[0] = Binary.VECTOR_TYPE.PackedBit;
+        buffer[1] = padding;
+        buffer.set(array, 2);
+        return new this(buffer, this.SUBTYPE_VECTOR);
+    }
+    static fromBits(bits) {
+        const byteLength = (bits.length + 7) >>> 3;
+        const bytes = new Uint8Array(byteLength + 2);
+        bytes[0] = Binary.VECTOR_TYPE.PackedBit;
+        const remainder = bits.length % 8;
+        bytes[1] = remainder === 0 ? 0 : 8 - remainder;
+        for (let bitOffset = 0; bitOffset < bits.length; bitOffset++) {
+            const byteOffset = bitOffset >>> 3;
+            const bit = bits[bitOffset];
+            if (bit !== 0 && bit !== 1) {
+                throw new BSONError(`Invalid bit value at ${bitOffset}: must be 0 or 1, found ${bits[bitOffset]}`);
+            }
+            if (bit === 0)
+                continue;
+            const shift = 7 - (bitOffset % 8);
+            bytes[byteOffset + 2] |= bit << shift;
+        }
+        return new this(bytes, Binary.SUBTYPE_VECTOR);
+    }
+}
+Binary.BSON_BINARY_SUBTYPE_DEFAULT = 0;
+Binary.BUFFER_SIZE = 256;
+Binary.SUBTYPE_DEFAULT = 0;
+Binary.SUBTYPE_FUNCTION = 1;
+Binary.SUBTYPE_BYTE_ARRAY = 2;
+Binary.SUBTYPE_UUID_OLD = 3;
+Binary.SUBTYPE_UUID = 4;
+Binary.SUBTYPE_MD5 = 5;
+Binary.SUBTYPE_ENCRYPTED = 6;
+Binary.SUBTYPE_COLUMN = 7;
+Binary.SUBTYPE_SENSITIVE = 8;
+Binary.SUBTYPE_VECTOR = 9;
+Binary.SUBTYPE_USER_DEFINED = 128;
+Binary.VECTOR_TYPE = Object.freeze({
+    Int8: 0x03,
+    Float32: 0x27,
+    PackedBit: 0x10
+});
+function validateBinaryVector(vector) {
+    if (vector.sub_type !== Binary.SUBTYPE_VECTOR)
+        return;
+    const size = vector.position;
+    const datatype = vector.buffer[0];
+    const padding = vector.buffer[1];
+    if ((datatype === Binary.VECTOR_TYPE.Float32 || datatype === Binary.VECTOR_TYPE.Int8) &&
+        padding !== 0) {
+        throw new BSONError('Invalid Vector: padding must be zero for int8 and float32 vectors');
+    }
+    if (datatype === Binary.VECTOR_TYPE.PackedBit && padding !== 0 && size === 2) {
+        throw new BSONError('Invalid Vector: padding must be zero for packed bit vectors that are empty');
+    }
+    if (datatype === Binary.VECTOR_TYPE.PackedBit && padding > 7) {
+        throw new BSONError(`Invalid Vector: padding must be a value between 0 and 7. found: ${padding}`);
+    }
+}
+const UUID_BYTE_LENGTH = 16;
+const UUID_WITHOUT_DASHES = /^[0-9A-F]{32}$/i;
+const UUID_WITH_DASHES = /^[0-9A-F]{8}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{12}$/i;
+class UUID extends Binary {
+    constructor(input) {
+        let bytes;
+        if (input == null) {
+            bytes = UUID.generate();
+        }
+        else if (input instanceof UUID) {
+            bytes = ByteUtils.toLocalBufferType(new Uint8Array(input.buffer));
+        }
+        else if (ArrayBuffer.isView(input) && input.byteLength === UUID_BYTE_LENGTH) {
+            bytes = ByteUtils.toLocalBufferType(input);
+        }
+        else if (typeof input === 'string') {
+            bytes = UUID.bytesFromString(input);
+        }
+        else {
+            throw new BSONError('Argument passed in UUID constructor must be a UUID, a 16 byte Buffer or a 32/36 character hex string (dashes excluded/included, format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx).');
+        }
+        super(bytes, BSON_BINARY_SUBTYPE_UUID_NEW);
+    }
+    get id() {
+        return this.buffer;
+    }
+    set id(value) {
+        this.buffer = value;
+    }
+    toHexString(includeDashes = true) {
+        if (includeDashes) {
+            return [
+                ByteUtils.toHex(this.buffer.subarray(0, 4)),
+                ByteUtils.toHex(this.buffer.subarray(4, 6)),
+                ByteUtils.toHex(this.buffer.subarray(6, 8)),
+                ByteUtils.toHex(this.buffer.subarray(8, 10)),
+                ByteUtils.toHex(this.buffer.subarray(10, 16))
+            ].join('-');
+        }
+        return ByteUtils.toHex(this.buffer);
+    }
+    toString(encoding) {
+        if (encoding === 'hex')
+            return ByteUtils.toHex(this.id);
+        if (encoding === 'base64')
+            return ByteUtils.toBase64(this.id);
+        return this.toHexString();
+    }
+    toJSON() {
+        return this.toHexString();
+    }
+    equals(otherId) {
+        if (!otherId) {
+            return false;
+        }
+        if (otherId instanceof UUID) {
+            return ByteUtils.equals(otherId.id, this.id);
+        }
+        try {
+            return ByteUtils.equals(new UUID(otherId).id, this.id);
+        }
+        catch {
+            return false;
+        }
+    }
+    toBinary() {
+        return new Binary(this.id, Binary.SUBTYPE_UUID);
+    }
+    static generate() {
+        const bytes = ByteUtils.randomBytes(UUID_BYTE_LENGTH);
+        bytes[6] = (bytes[6] & 0x0f) | 0x40;
+        bytes[8] = (bytes[8] & 0x3f) | 0x80;
+        return bytes;
+    }
+    static isValid(input) {
+        if (!input) {
+            return false;
+        }
+        if (typeof input === 'string') {
+            return UUID.isValidUUIDString(input);
+        }
+        if (isUint8Array(input)) {
+            return input.byteLength === UUID_BYTE_LENGTH;
+        }
+        return (input._bsontype === 'Binary' &&
+            input.sub_type === this.SUBTYPE_UUID &&
+            input.buffer.byteLength === 16);
+    }
+    static createFromHexString(hexString) {
+        const buffer = UUID.bytesFromString(hexString);
+        return new UUID(buffer);
+    }
+    static createFromBase64(base64) {
+        return new UUID(ByteUtils.fromBase64(base64));
+    }
+    static bytesFromString(representation) {
+        if (!UUID.isValidUUIDString(representation)) {
+            throw new BSONError('UUID string representation must be 32 hex digits or canonical hyphenated representation');
+        }
+        return ByteUtils.fromHex(representation.replace(/-/g, ''));
+    }
+    static isValidUUIDString(representation) {
+        return UUID_WITHOUT_DASHES.test(representation) || UUID_WITH_DASHES.test(representation);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        return `new UUID(${inspect(this.toHexString(), options)})`;
+    }
+}
+
+class Code extends BSONValue {
+    get _bsontype() {
+        return 'Code';
+    }
+    constructor(code, scope) {
+        super();
+        this.code = code.toString();
+        this.scope = scope ?? null;
+    }
+    toJSON() {
+        if (this.scope != null) {
+            return { code: this.code, scope: this.scope };
+        }
+        return { code: this.code };
+    }
+    toExtendedJSON() {
+        if (this.scope) {
+            return { $code: this.code, $scope: this.scope };
+        }
+        return { $code: this.code };
+    }
+    static fromExtendedJSON(doc) {
+        return new Code(doc.$code, doc.$scope);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        let parametersString = inspect(this.code, options);
+        const multiLineFn = parametersString.includes('\n');
+        if (this.scope != null) {
+            parametersString += `,${multiLineFn ? '\n' : ' '}${inspect(this.scope, options)}`;
+        }
+        const endingNewline = multiLineFn && this.scope === null;
+        return `new Code(${multiLineFn ? '\n' : ''}${parametersString}${endingNewline ? '\n' : ''})`;
+    }
+}
+
+function isDBRefLike(value) {
+    return (value != null &&
+        typeof value === 'object' &&
+        '$id' in value &&
+        value.$id != null &&
+        '$ref' in value &&
+        typeof value.$ref === 'string' &&
+        (!('$db' in value) || ('$db' in value && typeof value.$db === 'string')));
+}
+class DBRef extends BSONValue {
+    get _bsontype() {
+        return 'DBRef';
+    }
+    constructor(collection, oid, db, fields) {
+        super();
+        const parts = collection.split('.');
+        if (parts.length === 2) {
+            db = parts.shift();
+            collection = parts.shift();
+        }
+        this.collection = collection;
+        this.oid = oid;
+        this.db = db;
+        this.fields = fields || {};
+    }
+    get namespace() {
+        return this.collection;
+    }
+    set namespace(value) {
+        this.collection = value;
+    }
+    toJSON() {
+        const o = Object.assign({
+            $ref: this.collection,
+            $id: this.oid
+        }, this.fields);
+        if (this.db != null)
+            o.$db = this.db;
+        return o;
+    }
+    toExtendedJSON(options) {
+        options = options || {};
+        let o = {
+            $ref: this.collection,
+            $id: this.oid
+        };
+        if (options.legacy) {
+            return o;
+        }
+        if (this.db)
+            o.$db = this.db;
+        o = Object.assign(o, this.fields);
+        return o;
+    }
+    static fromExtendedJSON(doc) {
+        const copy = Object.assign({}, doc);
+        delete copy.$ref;
+        delete copy.$id;
+        delete copy.$db;
+        return new DBRef(doc.$ref, doc.$id, doc.$db, copy);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        const args = [
+            inspect(this.namespace, options),
+            inspect(this.oid, options),
+            ...(this.db ? [inspect(this.db, options)] : []),
+            ...(Object.keys(this.fields).length > 0 ? [inspect(this.fields, options)] : [])
+        ];
+        args[1] = inspect === defaultInspect ? `new ObjectId(${args[1]})` : args[1];
+        return `new DBRef(${args.join(', ')})`;
+    }
+}
+
+function removeLeadingZerosAndExplicitPlus(str) {
+    if (str === '') {
+        return str;
+    }
+    let startIndex = 0;
+    const isNegative = str[startIndex] === '-';
+    const isExplicitlyPositive = str[startIndex] === '+';
+    if (isExplicitlyPositive || isNegative) {
+        startIndex += 1;
+    }
+    let foundInsignificantZero = false;
+    for (; startIndex < str.length && str[startIndex] === '0'; ++startIndex) {
+        foundInsignificantZero = true;
+    }
+    if (!foundInsignificantZero) {
+        return isExplicitlyPositive ? str.slice(1) : str;
+    }
+    return `${isNegative ? '-' : ''}${str.length === startIndex ? '0' : str.slice(startIndex)}`;
+}
+function validateStringCharacters(str, radix) {
+    radix = radix ?? 10;
+    const validCharacters = '0123456789abcdefghijklmnopqrstuvwxyz'.slice(0, radix);
+    const regex = new RegExp(`[^-+${validCharacters}]`, 'i');
+    return regex.test(str) ? false : str;
+}
+
+let wasm = undefined;
+try {
+    wasm = new WebAssembly.Instance(new WebAssembly.Module(new Uint8Array([0, 97, 115, 109, 1, 0, 0, 0, 1, 13, 2, 96, 0, 1, 127, 96, 4, 127, 127, 127, 127, 1, 127, 3, 7, 6, 0, 1, 1, 1, 1, 1, 6, 6, 1, 127, 1, 65, 0, 11, 7, 50, 6, 3, 109, 117, 108, 0, 1, 5, 100, 105, 118, 95, 115, 0, 2, 5, 100, 105, 118, 95, 117, 0, 3, 5, 114, 101, 109, 95, 115, 0, 4, 5, 114, 101, 109, 95, 117, 0, 5, 8, 103, 101, 116, 95, 104, 105, 103, 104, 0, 0, 10, 191, 1, 6, 4, 0, 35, 0, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 126, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 127, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 128, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 129, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 130, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11])), {}).exports;
+}
+catch {
+}
+const TWO_PWR_16_DBL = 1 << 16;
+const TWO_PWR_24_DBL = 1 << 24;
+const TWO_PWR_32_DBL = TWO_PWR_16_DBL * TWO_PWR_16_DBL;
+const TWO_PWR_64_DBL = TWO_PWR_32_DBL * TWO_PWR_32_DBL;
+const TWO_PWR_63_DBL = TWO_PWR_64_DBL / 2;
+const INT_CACHE = {};
+const UINT_CACHE = {};
+const MAX_INT64_STRING_LENGTH = 20;
+const DECIMAL_REG_EX = /^(\+?0|(\+|-)?[1-9][0-9]*)$/;
+class Long extends BSONValue {
+    get _bsontype() {
+        return 'Long';
+    }
+    get __isLong__() {
+        return true;
+    }
+    constructor(lowOrValue = 0, highOrUnsigned, unsigned) {
+        super();
+        const unsignedBool = typeof highOrUnsigned === 'boolean' ? highOrUnsigned : Boolean(unsigned);
+        const high = typeof highOrUnsigned === 'number' ? highOrUnsigned : 0;
+        const res = typeof lowOrValue === 'string'
+            ? Long.fromString(lowOrValue, unsignedBool)
+            : typeof lowOrValue === 'bigint'
+                ? Long.fromBigInt(lowOrValue, unsignedBool)
+                : { low: lowOrValue | 0, high: high | 0, unsigned: unsignedBool };
+        this.low = res.low;
+        this.high = res.high;
+        this.unsigned = res.unsigned;
+    }
+    static fromBits(lowBits, highBits, unsigned) {
+        return new Long(lowBits, highBits, unsigned);
+    }
+    static fromInt(value, unsigned) {
+        let obj, cachedObj, cache;
+        if (unsigned) {
+            value >>>= 0;
+            if ((cache = 0 <= value && value < 256)) {
+                cachedObj = UINT_CACHE[value];
+                if (cachedObj)
+                    return cachedObj;
+            }
+            obj = Long.fromBits(value, (value | 0) < 0 ? -1 : 0, true);
+            if (cache)
+                UINT_CACHE[value] = obj;
+            return obj;
+        }
+        else {
+            value |= 0;
+            if ((cache = -128 <= value && value < 128)) {
+                cachedObj = INT_CACHE[value];
+                if (cachedObj)
+                    return cachedObj;
+            }
+            obj = Long.fromBits(value, value < 0 ? -1 : 0, false);
+            if (cache)
+                INT_CACHE[value] = obj;
+            return obj;
+        }
+    }
+    static fromNumber(value, unsigned) {
+        if (isNaN(value))
+            return unsigned ? Long.UZERO : Long.ZERO;
+        if (unsigned) {
+            if (value < 0)
+                return Long.UZERO;
+            if (value >= TWO_PWR_64_DBL)
+                return Long.MAX_UNSIGNED_VALUE;
+        }
+        else {
+            if (value <= -TWO_PWR_63_DBL)
+                return Long.MIN_VALUE;
+            if (value + 1 >= TWO_PWR_63_DBL)
+                return Long.MAX_VALUE;
+        }
+        if (value < 0)
+            return Long.fromNumber(-value, unsigned).neg();
+        return Long.fromBits(value % TWO_PWR_32_DBL | 0, (value / TWO_PWR_32_DBL) | 0, unsigned);
+    }
+    static fromBigInt(value, unsigned) {
+        const FROM_BIGINT_BIT_MASK = BigInt(0xffffffff);
+        const FROM_BIGINT_BIT_SHIFT = BigInt(32);
+        return new Long(Number(value & FROM_BIGINT_BIT_MASK), Number((value >> FROM_BIGINT_BIT_SHIFT) & FROM_BIGINT_BIT_MASK), unsigned);
+    }
+    static _fromString(str, unsigned, radix) {
+        if (str.length === 0)
+            throw new BSONError('empty string');
+        if (radix < 2 || 36 < radix)
+            throw new BSONError('radix');
+        let p;
+        if ((p = str.indexOf('-')) > 0)
+            throw new BSONError('interior hyphen');
+        else if (p === 0) {
+            return Long._fromString(str.substring(1), unsigned, radix).neg();
+        }
+        const radixToPower = Long.fromNumber(Math.pow(radix, 8));
+        let result = Long.ZERO;
+        for (let i = 0; i < str.length; i += 8) {
+            const size = Math.min(8, str.length - i), value = parseInt(str.substring(i, i + size), radix);
+            if (size < 8) {
+                const power = Long.fromNumber(Math.pow(radix, size));
+                result = result.mul(power).add(Long.fromNumber(value));
+            }
+            else {
+                result = result.mul(radixToPower);
+                result = result.add(Long.fromNumber(value));
+            }
+        }
+        result.unsigned = unsigned;
+        return result;
+    }
+    static fromStringStrict(str, unsignedOrRadix, radix) {
+        let unsigned = false;
+        if (typeof unsignedOrRadix === 'number') {
+            (radix = unsignedOrRadix), (unsignedOrRadix = false);
+        }
+        else {
+            unsigned = !!unsignedOrRadix;
+        }
+        radix ??= 10;
+        if (str.trim() !== str) {
+            throw new BSONError(`Input: '${str}' contains leading and/or trailing whitespace`);
+        }
+        if (!validateStringCharacters(str, radix)) {
+            throw new BSONError(`Input: '${str}' contains invalid characters for radix: ${radix}`);
+        }
+        const cleanedStr = removeLeadingZerosAndExplicitPlus(str);
+        const result = Long._fromString(cleanedStr, unsigned, radix);
+        if (result.toString(radix).toLowerCase() !== cleanedStr.toLowerCase()) {
+            throw new BSONError(`Input: ${str} is not representable as ${result.unsigned ? 'an unsigned' : 'a signed'} 64-bit Long ${radix != null ? `with radix: ${radix}` : ''}`);
+        }
+        return result;
+    }
+    static fromString(str, unsignedOrRadix, radix) {
+        let unsigned = false;
+        if (typeof unsignedOrRadix === 'number') {
+            (radix = unsignedOrRadix), (unsignedOrRadix = false);
+        }
+        else {
+            unsigned = !!unsignedOrRadix;
+        }
+        radix ??= 10;
+        if (str === 'NaN' && radix < 24) {
+            return Long.ZERO;
+        }
+        else if ((str === 'Infinity' || str === '+Infinity' || str === '-Infinity') && radix < 35) {
+            return Long.ZERO;
+        }
+        return Long._fromString(str, unsigned, radix);
+    }
+    static fromBytes(bytes, unsigned, le) {
+        return le ? Long.fromBytesLE(bytes, unsigned) : Long.fromBytesBE(bytes, unsigned);
+    }
+    static fromBytesLE(bytes, unsigned) {
+        return new Long(bytes[0] | (bytes[1] << 8) | (bytes[2] << 16) | (bytes[3] << 24), bytes[4] | (bytes[5] << 8) | (bytes[6] << 16) | (bytes[7] << 24), unsigned);
+    }
+    static fromBytesBE(bytes, unsigned) {
+        return new Long((bytes[4] << 24) | (bytes[5] << 16) | (bytes[6] << 8) | bytes[7], (bytes[0] << 24) | (bytes[1] << 16) | (bytes[2] << 8) | bytes[3], unsigned);
+    }
+    static isLong(value) {
+        return (value != null &&
+            typeof value === 'object' &&
+            '__isLong__' in value &&
+            value.__isLong__ === true);
+    }
+    static fromValue(val, unsigned) {
+        if (typeof val === 'number')
+            return Long.fromNumber(val, unsigned);
+        if (typeof val === 'string')
+            return Long.fromString(val, unsigned);
+        return Long.fromBits(val.low, val.high, typeof unsigned === 'boolean' ? unsigned : val.unsigned);
+    }
+    add(addend) {
+        if (!Long.isLong(addend))
+            addend = Long.fromValue(addend);
+        const a48 = this.high >>> 16;
+        const a32 = this.high & 0xffff;
+        const a16 = this.low >>> 16;
+        const a00 = this.low & 0xffff;
+        const b48 = addend.high >>> 16;
+        const b32 = addend.high & 0xffff;
+        const b16 = addend.low >>> 16;
+        const b00 = addend.low & 0xffff;
+        let c48 = 0, c32 = 0, c16 = 0, c00 = 0;
+        c00 += a00 + b00;
+        c16 += c00 >>> 16;
+        c00 &= 0xffff;
+        c16 += a16 + b16;
+        c32 += c16 >>> 16;
+        c16 &= 0xffff;
+        c32 += a32 + b32;
+        c48 += c32 >>> 16;
+        c32 &= 0xffff;
+        c48 += a48 + b48;
+        c48 &= 0xffff;
+        return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned);
+    }
+    and(other) {
+        if (!Long.isLong(other))
+            other = Long.fromValue(other);
+        return Long.fromBits(this.low & other.low, this.high & other.high, this.unsigned);
+    }
+    compare(other) {
+        if (!Long.isLong(other))
+            other = Long.fromValue(other);
+        if (this.eq(other))
+            return 0;
+        const thisNeg = this.isNegative(), otherNeg = other.isNegative();
+        if (thisNeg && !otherNeg)
+            return -1;
+        if (!thisNeg && otherNeg)
+            return 1;
+        if (!this.unsigned)
+            return this.sub(other).isNegative() ? -1 : 1;
+        return other.high >>> 0 > this.high >>> 0 ||
+            (other.high === this.high && other.low >>> 0 > this.low >>> 0)
+            ? -1
+            : 1;
+    }
+    comp(other) {
+        return this.compare(other);
+    }
+    divide(divisor) {
+        if (!Long.isLong(divisor))
+            divisor = Long.fromValue(divisor);
+        if (divisor.isZero())
+            throw new BSONError('division by zero');
+        if (wasm) {
+            if (!this.unsigned &&
+                this.high === -0x80000000 &&
+                divisor.low === -1 &&
+                divisor.high === -1) {
+                return this;
+            }
+            const low = (this.unsigned ? wasm.div_u : wasm.div_s)(this.low, this.high, divisor.low, divisor.high);
+            return Long.fromBits(low, wasm.get_high(), this.unsigned);
+        }
+        if (this.isZero())
+            return this.unsigned ? Long.UZERO : Long.ZERO;
+        let approx, rem, res;
+        if (!this.unsigned) {
+            if (this.eq(Long.MIN_VALUE)) {
+                if (divisor.eq(Long.ONE) || divisor.eq(Long.NEG_ONE))
+                    return Long.MIN_VALUE;
+                else if (divisor.eq(Long.MIN_VALUE))
+                    return Long.ONE;
+                else {
+                    const halfThis = this.shr(1);
+                    approx = halfThis.div(divisor).shl(1);
+                    if (approx.eq(Long.ZERO)) {
+                        return divisor.isNegative() ? Long.ONE : Long.NEG_ONE;
+                    }
+                    else {
+                        rem = this.sub(divisor.mul(approx));
+                        res = approx.add(rem.div(divisor));
+                        return res;
+                    }
+                }
+            }
+            else if (divisor.eq(Long.MIN_VALUE))
+                return this.unsigned ? Long.UZERO : Long.ZERO;
+            if (this.isNegative()) {
+                if (divisor.isNegative())
+                    return this.neg().div(divisor.neg());
+                return this.neg().div(divisor).neg();
+            }
+            else if (divisor.isNegative())
+                return this.div(divisor.neg()).neg();
+            res = Long.ZERO;
+        }
+        else {
+            if (!divisor.unsigned)
+                divisor = divisor.toUnsigned();
+            if (divisor.gt(this))
+                return Long.UZERO;
+            if (divisor.gt(this.shru(1)))
+                return Long.UONE;
+            res = Long.UZERO;
+        }
+        rem = this;
+        while (rem.gte(divisor)) {
+            approx = Math.max(1, Math.floor(rem.toNumber() / divisor.toNumber()));
+            const log2 = Math.ceil(Math.log(approx) / Math.LN2);
+            const delta = log2 <= 48 ? 1 : Math.pow(2, log2 - 48);
+            let approxRes = Long.fromNumber(approx);
+            let approxRem = approxRes.mul(divisor);
+            while (approxRem.isNegative() || approxRem.gt(rem)) {
+                approx -= delta;
+                approxRes = Long.fromNumber(approx, this.unsigned);
+                approxRem = approxRes.mul(divisor);
+            }
+            if (approxRes.isZero())
+                approxRes = Long.ONE;
+            res = res.add(approxRes);
+            rem = rem.sub(approxRem);
+        }
+        return res;
+    }
+    div(divisor) {
+        return this.divide(divisor);
+    }
+    equals(other) {
+        if (!Long.isLong(other))
+            other = Long.fromValue(other);
+        if (this.unsigned !== other.unsigned && this.high >>> 31 === 1 && other.high >>> 31 === 1)
+            return false;
+        return this.high === other.high && this.low === other.low;
+    }
+    eq(other) {
+        return this.equals(other);
+    }
+    getHighBits() {
+        return this.high;
+    }
+    getHighBitsUnsigned() {
+        return this.high >>> 0;
+    }
+    getLowBits() {
+        return this.low;
+    }
+    getLowBitsUnsigned() {
+        return this.low >>> 0;
+    }
+    getNumBitsAbs() {
+        if (this.isNegative()) {
+            return this.eq(Long.MIN_VALUE) ? 64 : this.neg().getNumBitsAbs();
+        }
+        const val = this.high !== 0 ? this.high : this.low;
+        let bit;
+        for (bit = 31; bit > 0; bit--)
+            if ((val & (1 << bit)) !== 0)
+                break;
+        return this.high !== 0 ? bit + 33 : bit + 1;
+    }
+    greaterThan(other) {
+        return this.comp(other) > 0;
+    }
+    gt(other) {
+        return this.greaterThan(other);
+    }
+    greaterThanOrEqual(other) {
+        return this.comp(other) >= 0;
+    }
+    gte(other) {
+        return this.greaterThanOrEqual(other);
+    }
+    ge(other) {
+        return this.greaterThanOrEqual(other);
+    }
+    isEven() {
+        return (this.low & 1) === 0;
+    }
+    isNegative() {
+        return !this.unsigned && this.high < 0;
+    }
+    isOdd() {
+        return (this.low & 1) === 1;
+    }
+    isPositive() {
+        return this.unsigned || this.high >= 0;
+    }
+    isZero() {
+        return this.high === 0 && this.low === 0;
+    }
+    lessThan(other) {
+        return this.comp(other) < 0;
+    }
+    lt(other) {
+        return this.lessThan(other);
+    }
+    lessThanOrEqual(other) {
+        return this.comp(other) <= 0;
+    }
+    lte(other) {
+        return this.lessThanOrEqual(other);
+    }
+    modulo(divisor) {
+        if (!Long.isLong(divisor))
+            divisor = Long.fromValue(divisor);
+        if (wasm) {
+            const low = (this.unsigned ? wasm.rem_u : wasm.rem_s)(this.low, this.high, divisor.low, divisor.high);
+            return Long.fromBits(low, wasm.get_high(), this.unsigned);
+        }
+        return this.sub(this.div(divisor).mul(divisor));
+    }
+    mod(divisor) {
+        return this.modulo(divisor);
+    }
+    rem(divisor) {
+        return this.modulo(divisor);
+    }
+    multiply(multiplier) {
+        if (this.isZero())
+            return Long.ZERO;
+        if (!Long.isLong(multiplier))
+            multiplier = Long.fromValue(multiplier);
+        if (wasm) {
+            const low = wasm.mul(this.low, this.high, multiplier.low, multiplier.high);
+            return Long.fromBits(low, wasm.get_high(), this.unsigned);
+        }
+        if (multiplier.isZero())
+            return Long.ZERO;
+        if (this.eq(Long.MIN_VALUE))
+            return multiplier.isOdd() ? Long.MIN_VALUE : Long.ZERO;
+        if (multiplier.eq(Long.MIN_VALUE))
+            return this.isOdd() ? Long.MIN_VALUE : Long.ZERO;
+        if (this.isNegative()) {
+            if (multiplier.isNegative())
+                return this.neg().mul(multiplier.neg());
+            else
+                return this.neg().mul(multiplier).neg();
+        }
+        else if (multiplier.isNegative())
+            return this.mul(multiplier.neg()).neg();
+        if (this.lt(Long.TWO_PWR_24) && multiplier.lt(Long.TWO_PWR_24))
+            return Long.fromNumber(this.toNumber() * multiplier.toNumber(), this.unsigned);
+        const a48 = this.high >>> 16;
+        const a32 = this.high & 0xffff;
+        const a16 = this.low >>> 16;
+        const a00 = this.low & 0xffff;
+        const b48 = multiplier.high >>> 16;
+        const b32 = multiplier.high & 0xffff;
+        const b16 = multiplier.low >>> 16;
+        const b00 = multiplier.low & 0xffff;
+        let c48 = 0, c32 = 0, c16 = 0, c00 = 0;
+        c00 += a00 * b00;
+        c16 += c00 >>> 16;
+        c00 &= 0xffff;
+        c16 += a16 * b00;
+        c32 += c16 >>> 16;
+        c16 &= 0xffff;
+        c16 += a00 * b16;
+        c32 += c16 >>> 16;
+        c16 &= 0xffff;
+        c32 += a32 * b00;
+        c48 += c32 >>> 16;
+        c32 &= 0xffff;
+        c32 += a16 * b16;
+        c48 += c32 >>> 16;
+        c32 &= 0xffff;
+        c32 += a00 * b32;
+        c48 += c32 >>> 16;
+        c32 &= 0xffff;
+        c48 += a48 * b00 + a32 * b16 + a16 * b32 + a00 * b48;
+        c48 &= 0xffff;
+        return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned);
+    }
+    mul(multiplier) {
+        return this.multiply(multiplier);
+    }
+    negate() {
+        if (!this.unsigned && this.eq(Long.MIN_VALUE))
+            return Long.MIN_VALUE;
+        return this.not().add(Long.ONE);
+    }
+    neg() {
+        return this.negate();
+    }
+    not() {
+        return Long.fromBits(~this.low, ~this.high, this.unsigned);
+    }
+    notEquals(other) {
+        return !this.equals(other);
+    }
+    neq(other) {
+        return this.notEquals(other);
+    }
+    ne(other) {
+        return this.notEquals(other);
+    }
+    or(other) {
+        if (!Long.isLong(other))
+            other = Long.fromValue(other);
+        return Long.fromBits(this.low | other.low, this.high | other.high, this.unsigned);
+    }
+    shiftLeft(numBits) {
+        if (Long.isLong(numBits))
+            numBits = numBits.toInt();
+        if ((numBits &= 63) === 0)
+            return this;
+        else if (numBits < 32)
+            return Long.fromBits(this.low << numBits, (this.high << numBits) | (this.low >>> (32 - numBits)), this.unsigned);
+        else
+            return Long.fromBits(0, this.low << (numBits - 32), this.unsigned);
+    }
+    shl(numBits) {
+        return this.shiftLeft(numBits);
+    }
+    shiftRight(numBits) {
+        if (Long.isLong(numBits))
+            numBits = numBits.toInt();
+        if ((numBits &= 63) === 0)
+            return this;
+        else if (numBits < 32)
+            return Long.fromBits((this.low >>> numBits) | (this.high << (32 - numBits)), this.high >> numBits, this.unsigned);
+        else
+            return Long.fromBits(this.high >> (numBits - 32), this.high >= 0 ? 0 : -1, this.unsigned);
+    }
+    shr(numBits) {
+        return this.shiftRight(numBits);
+    }
+    shiftRightUnsigned(numBits) {
+        if (Long.isLong(numBits))
+            numBits = numBits.toInt();
+        numBits &= 63;
+        if (numBits === 0)
+            return this;
+        else {
+            const high = this.high;
+            if (numBits < 32) {
+                const low = this.low;
+                return Long.fromBits((low >>> numBits) | (high << (32 - numBits)), high >>> numBits, this.unsigned);
+            }
+            else if (numBits === 32)
+                return Long.fromBits(high, 0, this.unsigned);
+            else
+                return Long.fromBits(high >>> (numBits - 32), 0, this.unsigned);
+        }
+    }
+    shr_u(numBits) {
+        return this.shiftRightUnsigned(numBits);
+    }
+    shru(numBits) {
+        return this.shiftRightUnsigned(numBits);
+    }
+    subtract(subtrahend) {
+        if (!Long.isLong(subtrahend))
+            subtrahend = Long.fromValue(subtrahend);
+        return this.add(subtrahend.neg());
+    }
+    sub(subtrahend) {
+        return this.subtract(subtrahend);
+    }
+    toInt() {
+        return this.unsigned ? this.low >>> 0 : this.low;
+    }
+    toNumber() {
+        if (this.unsigned)
+            return (this.high >>> 0) * TWO_PWR_32_DBL + (this.low >>> 0);
+        return this.high * TWO_PWR_32_DBL + (this.low >>> 0);
+    }
+    toBigInt() {
+        return BigInt(this.toString());
+    }
+    toBytes(le) {
+        return le ? this.toBytesLE() : this.toBytesBE();
+    }
+    toBytesLE() {
+        const hi = this.high, lo = this.low;
+        return [
+            lo & 0xff,
+            (lo >>> 8) & 0xff,
+            (lo >>> 16) & 0xff,
+            lo >>> 24,
+            hi & 0xff,
+            (hi >>> 8) & 0xff,
+            (hi >>> 16) & 0xff,
+            hi >>> 24
+        ];
+    }
+    toBytesBE() {
+        const hi = this.high, lo = this.low;
+        return [
+            hi >>> 24,
+            (hi >>> 16) & 0xff,
+            (hi >>> 8) & 0xff,
+            hi & 0xff,
+            lo >>> 24,
+            (lo >>> 16) & 0xff,
+            (lo >>> 8) & 0xff,
+            lo & 0xff
+        ];
+    }
+    toSigned() {
+        if (!this.unsigned)
+            return this;
+        return Long.fromBits(this.low, this.high, false);
+    }
+    toString(radix) {
+        radix = radix || 10;
+        if (radix < 2 || 36 < radix)
+            throw new BSONError('radix');
+        if (this.isZero())
+            return '0';
+        if (this.isNegative()) {
+            if (this.eq(Long.MIN_VALUE)) {
+                const radixLong = Long.fromNumber(radix), div = this.div(radixLong), rem1 = div.mul(radixLong).sub(this);
+                return div.toString(radix) + rem1.toInt().toString(radix);
+            }
+            else
+                return '-' + this.neg().toString(radix);
+        }
+        const radixToPower = Long.fromNumber(Math.pow(radix, 6), this.unsigned);
+        let rem = this;
+        let result = '';
+        while (true) {
+            const remDiv = rem.div(radixToPower);
+            const intval = rem.sub(remDiv.mul(radixToPower)).toInt() >>> 0;
+            let digits = intval.toString(radix);
+            rem = remDiv;
+            if (rem.isZero()) {
+                return digits + result;
+            }
+            else {
+                while (digits.length < 6)
+                    digits = '0' + digits;
+                result = '' + digits + result;
+            }
+        }
+    }
+    toUnsigned() {
+        if (this.unsigned)
+            return this;
+        return Long.fromBits(this.low, this.high, true);
+    }
+    xor(other) {
+        if (!Long.isLong(other))
+            other = Long.fromValue(other);
+        return Long.fromBits(this.low ^ other.low, this.high ^ other.high, this.unsigned);
+    }
+    eqz() {
+        return this.isZero();
+    }
+    le(other) {
+        return this.lessThanOrEqual(other);
+    }
+    toExtendedJSON(options) {
+        if (options && options.relaxed)
+            return this.toNumber();
+        return { $numberLong: this.toString() };
+    }
+    static fromExtendedJSON(doc, options) {
+        const { useBigInt64 = false, relaxed = true } = { ...options };
+        if (doc.$numberLong.length > MAX_INT64_STRING_LENGTH) {
+            throw new BSONError('$numberLong string is too long');
+        }
+        if (!DECIMAL_REG_EX.test(doc.$numberLong)) {
+            throw new BSONError(`$numberLong string "${doc.$numberLong}" is in an invalid format`);
+        }
+        if (useBigInt64) {
+            const bigIntResult = BigInt(doc.$numberLong);
+            return BigInt.asIntN(64, bigIntResult);
+        }
+        const longResult = Long.fromString(doc.$numberLong);
+        if (relaxed) {
+            return longResult.toNumber();
+        }
+        return longResult;
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        const longVal = inspect(this.toString(), options);
+        const unsignedVal = this.unsigned ? `, ${inspect(this.unsigned, options)}` : '';
+        return `new Long(${longVal}${unsignedVal})`;
+    }
+}
+Long.TWO_PWR_24 = Long.fromInt(TWO_PWR_24_DBL);
+Long.MAX_UNSIGNED_VALUE = Long.fromBits(0xffffffff | 0, 0xffffffff | 0, true);
+Long.ZERO = Long.fromInt(0);
+Long.UZERO = Long.fromInt(0, true);
+Long.ONE = Long.fromInt(1);
+Long.UONE = Long.fromInt(1, true);
+Long.NEG_ONE = Long.fromInt(-1);
+Long.MAX_VALUE = Long.fromBits(0xffffffff | 0, 0x7fffffff | 0, false);
+Long.MIN_VALUE = Long.fromBits(0, 0x80000000 | 0, false);
+
+const PARSE_STRING_REGEXP = /^(\+|-)?(\d+|(\d*\.\d*))?(E|e)?([-+])?(\d+)?$/;
+const PARSE_INF_REGEXP = /^(\+|-)?(Infinity|inf)$/i;
+const PARSE_NAN_REGEXP = /^(\+|-)?NaN$/i;
+const EXPONENT_MAX = 6111;
+const EXPONENT_MIN = -6176;
+const EXPONENT_BIAS = 6176;
+const MAX_DIGITS = 34;
+const NAN_BUFFER = ByteUtils.fromNumberArray([
+    0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+].reverse());
+const INF_NEGATIVE_BUFFER = ByteUtils.fromNumberArray([
+    0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+].reverse());
+const INF_POSITIVE_BUFFER = ByteUtils.fromNumberArray([
+    0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+].reverse());
+const EXPONENT_REGEX = /^([-+])?(\d+)?$/;
+const COMBINATION_MASK = 0x1f;
+const EXPONENT_MASK = 0x3fff;
+const COMBINATION_INFINITY = 30;
+const COMBINATION_NAN = 31;
+function isDigit(value) {
+    return !isNaN(parseInt(value, 10));
+}
+function divideu128(value) {
+    const DIVISOR = Long.fromNumber(1000 * 1000 * 1000);
+    let _rem = Long.fromNumber(0);
+    if (!value.parts[0] && !value.parts[1] && !value.parts[2] && !value.parts[3]) {
+        return { quotient: value, rem: _rem };
+    }
+    for (let i = 0; i <= 3; i++) {
+        _rem = _rem.shiftLeft(32);
+        _rem = _rem.add(new Long(value.parts[i], 0));
+        value.parts[i] = _rem.div(DIVISOR).low;
+        _rem = _rem.modulo(DIVISOR);
+    }
+    return { quotient: value, rem: _rem };
+}
+function multiply64x2(left, right) {
+    if (!left && !right) {
+        return { high: Long.fromNumber(0), low: Long.fromNumber(0) };
+    }
+    const leftHigh = left.shiftRightUnsigned(32);
+    const leftLow = new Long(left.getLowBits(), 0);
+    const rightHigh = right.shiftRightUnsigned(32);
+    const rightLow = new Long(right.getLowBits(), 0);
+    let productHigh = leftHigh.multiply(rightHigh);
+    let productMid = leftHigh.multiply(rightLow);
+    const productMid2 = leftLow.multiply(rightHigh);
+    let productLow = leftLow.multiply(rightLow);
+    productHigh = productHigh.add(productMid.shiftRightUnsigned(32));
+    productMid = new Long(productMid.getLowBits(), 0)
+        .add(productMid2)
+        .add(productLow.shiftRightUnsigned(32));
+    productHigh = productHigh.add(productMid.shiftRightUnsigned(32));
+    productLow = productMid.shiftLeft(32).add(new Long(productLow.getLowBits(), 0));
+    return { high: productHigh, low: productLow };
+}
+function lessThan(left, right) {
+    const uhleft = left.high >>> 0;
+    const uhright = right.high >>> 0;
+    if (uhleft < uhright) {
+        return true;
+    }
+    else if (uhleft === uhright) {
+        const ulleft = left.low >>> 0;
+        const ulright = right.low >>> 0;
+        if (ulleft < ulright)
+            return true;
+    }
+    return false;
+}
+function invalidErr(string, message) {
+    throw new BSONError(`"${string}" is not a valid Decimal128 string - ${message}`);
+}
+class Decimal128 extends BSONValue {
+    get _bsontype() {
+        return 'Decimal128';
+    }
+    constructor(bytes) {
+        super();
+        if (typeof bytes === 'string') {
+            this.bytes = Decimal128.fromString(bytes).bytes;
+        }
+        else if (bytes instanceof Uint8Array || isUint8Array(bytes)) {
+            if (bytes.byteLength !== 16) {
+                throw new BSONError('Decimal128 must take a Buffer of 16 bytes');
+            }
+            this.bytes = bytes;
+        }
+        else {
+            throw new BSONError('Decimal128 must take a Buffer or string');
+        }
+    }
+    static fromString(representation) {
+        return Decimal128._fromString(representation, { allowRounding: false });
+    }
+    static fromStringWithRounding(representation) {
+        return Decimal128._fromString(representation, { allowRounding: true });
+    }
+    static _fromString(representation, options) {
+        let isNegative = false;
+        let sawSign = false;
+        let sawRadix = false;
+        let foundNonZero = false;
+        let significantDigits = 0;
+        let nDigitsRead = 0;
+        let nDigits = 0;
+        let radixPosition = 0;
+        let firstNonZero = 0;
+        const digits = [0];
+        let nDigitsStored = 0;
+        let digitsInsert = 0;
+        let lastDigit = 0;
+        let exponent = 0;
+        let significandHigh = new Long(0, 0);
+        let significandLow = new Long(0, 0);
+        let biasedExponent = 0;
+        let index = 0;
+        if (representation.length >= 7000) {
+            throw new BSONError('' + representation + ' not a valid Decimal128 string');
+        }
+        const stringMatch = representation.match(PARSE_STRING_REGEXP);
+        const infMatch = representation.match(PARSE_INF_REGEXP);
+        const nanMatch = representation.match(PARSE_NAN_REGEXP);
+        if ((!stringMatch && !infMatch && !nanMatch) || representation.length === 0) {
+            throw new BSONError('' + representation + ' not a valid Decimal128 string');
+        }
+        if (stringMatch) {
+            const unsignedNumber = stringMatch[2];
+            const e = stringMatch[4];
+            const expSign = stringMatch[5];
+            const expNumber = stringMatch[6];
+            if (e && expNumber === undefined)
+                invalidErr(representation, 'missing exponent power');
+            if (e && unsignedNumber === undefined)
+                invalidErr(representation, 'missing exponent base');
+            if (e === undefined && (expSign || expNumber)) {
+                invalidErr(representation, 'missing e before exponent');
+            }
+        }
+        if (representation[index] === '+' || representation[index] === '-') {
+            sawSign = true;
+            isNegative = representation[index++] === '-';
+        }
+        if (!isDigit(representation[index]) && representation[index] !== '.') {
+            if (representation[index] === 'i' || representation[index] === 'I') {
+                return new Decimal128(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER);
+            }
+            else if (representation[index] === 'N') {
+                return new Decimal128(NAN_BUFFER);
+            }
+        }
+        while (isDigit(representation[index]) || representation[index] === '.') {
+            if (representation[index] === '.') {
+                if (sawRadix)
+                    invalidErr(representation, 'contains multiple periods');
+                sawRadix = true;
+                index = index + 1;
+                continue;
+            }
+            if (nDigitsStored < MAX_DIGITS) {
+                if (representation[index] !== '0' || foundNonZero) {
+                    if (!foundNonZero) {
+                        firstNonZero = nDigitsRead;
+                    }
+                    foundNonZero = true;
+                    digits[digitsInsert++] = parseInt(representation[index], 10);
+                    nDigitsStored = nDigitsStored + 1;
+                }
+            }
+            if (foundNonZero)
+                nDigits = nDigits + 1;
+            if (sawRadix)
+                radixPosition = radixPosition + 1;
+            nDigitsRead = nDigitsRead + 1;
+            index = index + 1;
+        }
+        if (sawRadix && !nDigitsRead)
+            throw new BSONError('' + representation + ' not a valid Decimal128 string');
+        if (representation[index] === 'e' || representation[index] === 'E') {
+            const match = representation.substr(++index).match(EXPONENT_REGEX);
+            if (!match || !match[2])
+                return new Decimal128(NAN_BUFFER);
+            exponent = parseInt(match[0], 10);
+            index = index + match[0].length;
+        }
+        if (representation[index])
+            return new Decimal128(NAN_BUFFER);
+        if (!nDigitsStored) {
+            digits[0] = 0;
+            nDigits = 1;
+            nDigitsStored = 1;
+            significantDigits = 0;
+        }
+        else {
+            lastDigit = nDigitsStored - 1;
+            significantDigits = nDigits;
+            if (significantDigits !== 1) {
+                while (representation[firstNonZero + significantDigits - 1 + Number(sawSign) + Number(sawRadix)] === '0') {
+                    significantDigits = significantDigits - 1;
+                }
+            }
+        }
+        if (exponent <= radixPosition && radixPosition > exponent + (1 << 14)) {
+            exponent = EXPONENT_MIN;
+        }
+        else {
+            exponent = exponent - radixPosition;
+        }
+        while (exponent > EXPONENT_MAX) {
+            lastDigit = lastDigit + 1;
+            if (lastDigit >= MAX_DIGITS) {
+                if (significantDigits === 0) {
+                    exponent = EXPONENT_MAX;
+                    break;
+                }
+                invalidErr(representation, 'overflow');
+            }
+            exponent = exponent - 1;
+        }
+        if (options.allowRounding) {
+            while (exponent < EXPONENT_MIN || nDigitsStored < nDigits) {
+                if (lastDigit === 0 && significantDigits < nDigitsStored) {
+                    exponent = EXPONENT_MIN;
+                    significantDigits = 0;
+                    break;
+                }
+                if (nDigitsStored < nDigits) {
+                    nDigits = nDigits - 1;
+                }
+                else {
+                    lastDigit = lastDigit - 1;
+                }
+                if (exponent < EXPONENT_MAX) {
+                    exponent = exponent + 1;
+                }
+                else {
+                    const digitsString = digits.join('');
+                    if (digitsString.match(/^0+$/)) {
+                        exponent = EXPONENT_MAX;
+                        break;
+                    }
+                    invalidErr(representation, 'overflow');
+                }
+            }
+            if (lastDigit + 1 < significantDigits) {
+                let endOfString = nDigitsRead;
+                if (sawRadix) {
+                    firstNonZero = firstNonZero + 1;
+                    endOfString = endOfString + 1;
+                }
+                if (sawSign) {
+                    firstNonZero = firstNonZero + 1;
+                    endOfString = endOfString + 1;
+                }
+                const roundDigit = parseInt(representation[firstNonZero + lastDigit + 1], 10);
+                let roundBit = 0;
+                if (roundDigit >= 5) {
+                    roundBit = 1;
+                    if (roundDigit === 5) {
+                        roundBit = digits[lastDigit] % 2 === 1 ? 1 : 0;
+                        for (let i = firstNonZero + lastDigit + 2; i < endOfString; i++) {
+                            if (parseInt(representation[i], 10)) {
+                                roundBit = 1;
+                                break;
+                            }
+                        }
+                    }
+                }
+                if (roundBit) {
+                    let dIdx = lastDigit;
+                    for (; dIdx >= 0; dIdx--) {
+                        if (++digits[dIdx] > 9) {
+                            digits[dIdx] = 0;
+                            if (dIdx === 0) {
+                                if (exponent < EXPONENT_MAX) {
+                                    exponent = exponent + 1;
+                                    digits[dIdx] = 1;
+                                }
+                                else {
+                                    return new Decimal128(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER);
+                                }
+                            }
+                        }
+                        else {
+                            break;
+                        }
+                    }
+                }
+            }
+        }
+        else {
+            while (exponent < EXPONENT_MIN || nDigitsStored < nDigits) {
+                if (lastDigit === 0) {
+                    if (significantDigits === 0) {
+                        exponent = EXPONENT_MIN;
+                        break;
+                    }
+                    invalidErr(representation, 'exponent underflow');
+                }
+                if (nDigitsStored < nDigits) {
+                    if (representation[nDigits - 1 + Number(sawSign) + Number(sawRadix)] !== '0' &&
+                        significantDigits !== 0) {
+                        invalidErr(representation, 'inexact rounding');
+                    }
+                    nDigits = nDigits - 1;
+                }
+                else {
+                    if (digits[lastDigit] !== 0) {
+                        invalidErr(representation, 'inexact rounding');
+                    }
+                    lastDigit = lastDigit - 1;
+                }
+                if (exponent < EXPONENT_MAX) {
+                    exponent = exponent + 1;
+                }
+                else {
+                    invalidErr(representation, 'overflow');
+                }
+            }
+            if (lastDigit + 1 < significantDigits) {
+                if (sawRadix) {
+                    firstNonZero = firstNonZero + 1;
+                }
+                if (sawSign) {
+                    firstNonZero = firstNonZero + 1;
+                }
+                const roundDigit = parseInt(representation[firstNonZero + lastDigit + 1], 10);
+                if (roundDigit !== 0) {
+                    invalidErr(representation, 'inexact rounding');
+                }
+            }
+        }
+        significandHigh = Long.fromNumber(0);
+        significandLow = Long.fromNumber(0);
+        if (significantDigits === 0) {
+            significandHigh = Long.fromNumber(0);
+            significandLow = Long.fromNumber(0);
+        }
+        else if (lastDigit < 17) {
+            let dIdx = 0;
+            significandLow = Long.fromNumber(digits[dIdx++]);
+            significandHigh = new Long(0, 0);
+            for (; dIdx <= lastDigit; dIdx++) {
+                significandLow = significandLow.multiply(Long.fromNumber(10));
+                significandLow = significandLow.add(Long.fromNumber(digits[dIdx]));
+            }
+        }
+        else {
+            let dIdx = 0;
+            significandHigh = Long.fromNumber(digits[dIdx++]);
+            for (; dIdx <= lastDigit - 17; dIdx++) {
+                significandHigh = significandHigh.multiply(Long.fromNumber(10));
+                significandHigh = significandHigh.add(Long.fromNumber(digits[dIdx]));
+            }
+            significandLow = Long.fromNumber(digits[dIdx++]);
+            for (; dIdx <= lastDigit; dIdx++) {
+                significandLow = significandLow.multiply(Long.fromNumber(10));
+                significandLow = significandLow.add(Long.fromNumber(digits[dIdx]));
+            }
+        }
+        const significand = multiply64x2(significandHigh, Long.fromString('100000000000000000'));
+        significand.low = significand.low.add(significandLow);
+        if (lessThan(significand.low, significandLow)) {
+            significand.high = significand.high.add(Long.fromNumber(1));
+        }
+        biasedExponent = exponent + EXPONENT_BIAS;
+        const dec = { low: Long.fromNumber(0), high: Long.fromNumber(0) };
+        if (significand.high.shiftRightUnsigned(49).and(Long.fromNumber(1)).equals(Long.fromNumber(1))) {
+            dec.high = dec.high.or(Long.fromNumber(0x3).shiftLeft(61));
+            dec.high = dec.high.or(Long.fromNumber(biasedExponent).and(Long.fromNumber(0x3fff).shiftLeft(47)));
+            dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x7fffffffffff)));
+        }
+        else {
+            dec.high = dec.high.or(Long.fromNumber(biasedExponent & 0x3fff).shiftLeft(49));
+            dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x1ffffffffffff)));
+        }
+        dec.low = significand.low;
+        if (isNegative) {
+            dec.high = dec.high.or(Long.fromString('9223372036854775808'));
+        }
+        const buffer = ByteUtils.allocateUnsafe(16);
+        index = 0;
+        buffer[index++] = dec.low.low & 0xff;
+        buffer[index++] = (dec.low.low >> 8) & 0xff;
+        buffer[index++] = (dec.low.low >> 16) & 0xff;
+        buffer[index++] = (dec.low.low >> 24) & 0xff;
+        buffer[index++] = dec.low.high & 0xff;
+        buffer[index++] = (dec.low.high >> 8) & 0xff;
+        buffer[index++] = (dec.low.high >> 16) & 0xff;
+        buffer[index++] = (dec.low.high >> 24) & 0xff;
+        buffer[index++] = dec.high.low & 0xff;
+        buffer[index++] = (dec.high.low >> 8) & 0xff;
+        buffer[index++] = (dec.high.low >> 16) & 0xff;
+        buffer[index++] = (dec.high.low >> 24) & 0xff;
+        buffer[index++] = dec.high.high & 0xff;
+        buffer[index++] = (dec.high.high >> 8) & 0xff;
+        buffer[index++] = (dec.high.high >> 16) & 0xff;
+        buffer[index++] = (dec.high.high >> 24) & 0xff;
+        return new Decimal128(buffer);
+    }
+    toString() {
+        let biased_exponent;
+        let significand_digits = 0;
+        const significand = new Array(36);
+        for (let i = 0; i < significand.length; i++)
+            significand[i] = 0;
+        let index = 0;
+        let is_zero = false;
+        let significand_msb;
+        let significand128 = { parts: [0, 0, 0, 0] };
+        let j, k;
+        const string = [];
+        index = 0;
+        const buffer = this.bytes;
+        const low = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
+        const midl = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
+        const midh = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
+        const high = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
+        index = 0;
+        const dec = {
+            low: new Long(low, midl),
+            high: new Long(midh, high)
+        };
+        if (dec.high.lessThan(Long.ZERO)) {
+            string.push('-');
+        }
+        const combination = (high >> 26) & COMBINATION_MASK;
+        if (combination >> 3 === 3) {
+            if (combination === COMBINATION_INFINITY) {
+                return string.join('') + 'Infinity';
+            }
+            else if (combination === COMBINATION_NAN) {
+                return 'NaN';
+            }
+            else {
+                biased_exponent = (high >> 15) & EXPONENT_MASK;
+                significand_msb = 0x08 + ((high >> 14) & 0x01);
+            }
+        }
+        else {
+            significand_msb = (high >> 14) & 0x07;
+            biased_exponent = (high >> 17) & EXPONENT_MASK;
+        }
+        const exponent = biased_exponent - EXPONENT_BIAS;
+        significand128.parts[0] = (high & 0x3fff) + ((significand_msb & 0xf) << 14);
+        significand128.parts[1] = midh;
+        significand128.parts[2] = midl;
+        significand128.parts[3] = low;
+        if (significand128.parts[0] === 0 &&
+            significand128.parts[1] === 0 &&
+            significand128.parts[2] === 0 &&
+            significand128.parts[3] === 0) {
+            is_zero = true;
+        }
+        else {
+            for (k = 3; k >= 0; k--) {
+                let least_digits = 0;
+                const result = divideu128(significand128);
+                significand128 = result.quotient;
+                least_digits = result.rem.low;
+                if (!least_digits)
+                    continue;
+                for (j = 8; j >= 0; j--) {
+                    significand[k * 9 + j] = least_digits % 10;
+                    least_digits = Math.floor(least_digits / 10);
+                }
+            }
+        }
+        if (is_zero) {
+            significand_digits = 1;
+            significand[index] = 0;
+        }
+        else {
+            significand_digits = 36;
+            while (!significand[index]) {
+                significand_digits = significand_digits - 1;
+                index = index + 1;
+            }
+        }
+        const scientific_exponent = significand_digits - 1 + exponent;
+        if (scientific_exponent >= 34 || scientific_exponent <= -7 || exponent > 0) {
+            if (significand_digits > 34) {
+                string.push(`${0}`);
+                if (exponent > 0)
+                    string.push(`E+${exponent}`);
+                else if (exponent < 0)
+                    string.push(`E${exponent}`);
+                return string.join('');
+            }
+            string.push(`${significand[index++]}`);
+            significand_digits = significand_digits - 1;
+            if (significand_digits) {
+                string.push('.');
+            }
+            for (let i = 0; i < significand_digits; i++) {
+                string.push(`${significand[index++]}`);
+            }
+            string.push('E');
+            if (scientific_exponent > 0) {
+                string.push(`+${scientific_exponent}`);
+            }
+            else {
+                string.push(`${scientific_exponent}`);
+            }
+        }
+        else {
+            if (exponent >= 0) {
+                for (let i = 0; i < significand_digits; i++) {
+                    string.push(`${significand[index++]}`);
+                }
+            }
+            else {
+                let radix_position = significand_digits + exponent;
+                if (radix_position > 0) {
+                    for (let i = 0; i < radix_position; i++) {
+                        string.push(`${significand[index++]}`);
+                    }
+                }
+                else {
+                    string.push('0');
+                }
+                string.push('.');
+                while (radix_position++ < 0) {
+                    string.push('0');
+                }
+                for (let i = 0; i < significand_digits - Math.max(radix_position - 1, 0); i++) {
+                    string.push(`${significand[index++]}`);
+                }
+            }
+        }
+        return string.join('');
+    }
+    toJSON() {
+        return { $numberDecimal: this.toString() };
+    }
+    toExtendedJSON() {
+        return { $numberDecimal: this.toString() };
+    }
+    static fromExtendedJSON(doc) {
+        return Decimal128.fromString(doc.$numberDecimal);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        const d128string = inspect(this.toString(), options);
+        return `new Decimal128(${d128string})`;
+    }
+}
+
+class Double extends BSONValue {
+    get _bsontype() {
+        return 'Double';
+    }
+    constructor(value) {
+        super();
+        if (value instanceof Number) {
+            value = value.valueOf();
+        }
+        this.value = +value;
+    }
+    static fromString(value) {
+        const coercedValue = Number(value);
+        if (value === 'NaN')
+            return new Double(NaN);
+        if (value === 'Infinity')
+            return new Double(Infinity);
+        if (value === '-Infinity')
+            return new Double(-Infinity);
+        if (!Number.isFinite(coercedValue)) {
+            throw new BSONError(`Input: ${value} is not representable as a Double`);
+        }
+        if (value.trim() !== value) {
+            throw new BSONError(`Input: '${value}' contains whitespace`);
+        }
+        if (value === '') {
+            throw new BSONError(`Input is an empty string`);
+        }
+        if (/[^-0-9.+eE]/.test(value)) {
+            throw new BSONError(`Input: '${value}' is not in decimal or exponential notation`);
+        }
+        return new Double(coercedValue);
+    }
+    valueOf() {
+        return this.value;
+    }
+    toJSON() {
+        return this.value;
+    }
+    toString(radix) {
+        return this.value.toString(radix);
+    }
+    toExtendedJSON(options) {
+        if (options && (options.legacy || (options.relaxed && isFinite(this.value)))) {
+            return this.value;
+        }
+        if (Object.is(Math.sign(this.value), -0)) {
+            return { $numberDouble: '-0.0' };
+        }
+        return {
+            $numberDouble: Number.isInteger(this.value) ? this.value.toFixed(1) : this.value.toString()
+        };
+    }
+    static fromExtendedJSON(doc, options) {
+        const doubleValue = parseFloat(doc.$numberDouble);
+        return options && options.relaxed ? doubleValue : new Double(doubleValue);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        return `new Double(${inspect(this.value, options)})`;
+    }
+}
+
+class Int32 extends BSONValue {
+    get _bsontype() {
+        return 'Int32';
+    }
+    constructor(value) {
+        super();
+        if (value instanceof Number) {
+            value = value.valueOf();
+        }
+        this.value = +value | 0;
+    }
+    static fromString(value) {
+        const cleanedValue = removeLeadingZerosAndExplicitPlus(value);
+        const coercedValue = Number(value);
+        if (BSON_INT32_MAX < coercedValue) {
+            throw new BSONError(`Input: '${value}' is larger than the maximum value for Int32`);
+        }
+        else if (BSON_INT32_MIN > coercedValue) {
+            throw new BSONError(`Input: '${value}' is smaller than the minimum value for Int32`);
+        }
+        else if (!Number.isSafeInteger(coercedValue)) {
+            throw new BSONError(`Input: '${value}' is not a safe integer`);
+        }
+        else if (coercedValue.toString() !== cleanedValue) {
+            throw new BSONError(`Input: '${value}' is not a valid Int32 string`);
+        }
+        return new Int32(coercedValue);
+    }
+    valueOf() {
+        return this.value;
+    }
+    toString(radix) {
+        return this.value.toString(radix);
+    }
+    toJSON() {
+        return this.value;
+    }
+    toExtendedJSON(options) {
+        if (options && (options.relaxed || options.legacy))
+            return this.value;
+        return { $numberInt: this.value.toString() };
+    }
+    static fromExtendedJSON(doc, options) {
+        return options && options.relaxed ? parseInt(doc.$numberInt, 10) : new Int32(doc.$numberInt);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        return `new Int32(${inspect(this.value, options)})`;
+    }
+}
+
+class MaxKey extends BSONValue {
+    get _bsontype() {
+        return 'MaxKey';
+    }
+    toExtendedJSON() {
+        return { $maxKey: 1 };
+    }
+    static fromExtendedJSON() {
+        return new MaxKey();
+    }
+    inspect() {
+        return 'new MaxKey()';
+    }
+}
+
+class MinKey extends BSONValue {
+    get _bsontype() {
+        return 'MinKey';
+    }
+    toExtendedJSON() {
+        return { $minKey: 1 };
+    }
+    static fromExtendedJSON() {
+        return new MinKey();
+    }
+    inspect() {
+        return 'new MinKey()';
+    }
+}
+
+let PROCESS_UNIQUE = null;
+const __idCache = new WeakMap();
+class ObjectId extends BSONValue {
+    get _bsontype() {
+        return 'ObjectId';
+    }
+    constructor(inputId) {
+        super();
+        let workingId;
+        if (typeof inputId === 'object' && inputId && 'id' in inputId) {
+            if (typeof inputId.id !== 'string' && !ArrayBuffer.isView(inputId.id)) {
+                throw new BSONError('Argument passed in must have an id that is of type string or Buffer');
+            }
+            if ('toHexString' in inputId && typeof inputId.toHexString === 'function') {
+                workingId = ByteUtils.fromHex(inputId.toHexString());
+            }
+            else {
+                workingId = inputId.id;
+            }
+        }
+        else {
+            workingId = inputId;
+        }
+        if (workingId == null || typeof workingId === 'number') {
+            this.buffer = ObjectId.generate(typeof workingId === 'number' ? workingId : undefined);
+        }
+        else if (ArrayBuffer.isView(workingId) && workingId.byteLength === 12) {
+            this.buffer = ByteUtils.toLocalBufferType(workingId);
+        }
+        else if (typeof workingId === 'string') {
+            if (ObjectId.validateHexString(workingId)) {
+                this.buffer = ByteUtils.fromHex(workingId);
+                if (ObjectId.cacheHexString) {
+                    __idCache.set(this, workingId);
+                }
+            }
+            else {
+                throw new BSONError('input must be a 24 character hex string, 12 byte Uint8Array, or an integer');
+            }
+        }
+        else {
+            throw new BSONError('Argument passed in does not match the accepted types');
+        }
+    }
+    get id() {
+        return this.buffer;
+    }
+    set id(value) {
+        this.buffer = value;
+        if (ObjectId.cacheHexString) {
+            __idCache.set(this, ByteUtils.toHex(value));
+        }
+    }
+    static validateHexString(string) {
+        if (string?.length !== 24)
+            return false;
+        for (let i = 0; i < 24; i++) {
+            const char = string.charCodeAt(i);
+            if ((char >= 48 && char <= 57) ||
+                (char >= 97 && char <= 102) ||
+                (char >= 65 && char <= 70)) {
+                continue;
+            }
+            return false;
+        }
+        return true;
+    }
+    toHexString() {
+        if (ObjectId.cacheHexString) {
+            const __id = __idCache.get(this);
+            if (__id)
+                return __id;
+        }
+        const hexString = ByteUtils.toHex(this.id);
+        if (ObjectId.cacheHexString) {
+            __idCache.set(this, hexString);
+        }
+        return hexString;
+    }
+    static getInc() {
+        return (ObjectId.index = (ObjectId.index + 1) % 0xffffff);
+    }
+    static generate(time) {
+        if ('number' !== typeof time) {
+            time = Math.floor(Date.now() / 1000);
+        }
+        const inc = ObjectId.getInc();
+        const buffer = ByteUtils.allocateUnsafe(12);
+        NumberUtils.setInt32BE(buffer, 0, time);
+        if (PROCESS_UNIQUE === null) {
+            PROCESS_UNIQUE = ByteUtils.randomBytes(5);
+        }
+        buffer[4] = PROCESS_UNIQUE[0];
+        buffer[5] = PROCESS_UNIQUE[1];
+        buffer[6] = PROCESS_UNIQUE[2];
+        buffer[7] = PROCESS_UNIQUE[3];
+        buffer[8] = PROCESS_UNIQUE[4];
+        buffer[11] = inc & 0xff;
+        buffer[10] = (inc >> 8) & 0xff;
+        buffer[9] = (inc >> 16) & 0xff;
+        return buffer;
+    }
+    toString(encoding) {
+        if (encoding === 'base64')
+            return ByteUtils.toBase64(this.id);
+        if (encoding === 'hex')
+            return this.toHexString();
+        return this.toHexString();
+    }
+    toJSON() {
+        return this.toHexString();
+    }
+    static is(variable) {
+        return (variable != null &&
+            typeof variable === 'object' &&
+            '_bsontype' in variable &&
+            variable._bsontype === 'ObjectId');
+    }
+    equals(otherId) {
+        if (otherId === undefined || otherId === null) {
+            return false;
+        }
+        if (ObjectId.is(otherId)) {
+            return (this.buffer[11] === otherId.buffer[11] && ByteUtils.equals(this.buffer, otherId.buffer));
+        }
+        if (typeof otherId === 'string') {
+            return otherId.toLowerCase() === this.toHexString();
+        }
+        if (typeof otherId === 'object' && typeof otherId.toHexString === 'function') {
+            const otherIdString = otherId.toHexString();
+            const thisIdString = this.toHexString();
+            return typeof otherIdString === 'string' && otherIdString.toLowerCase() === thisIdString;
+        }
+        return false;
+    }
+    getTimestamp() {
+        const timestamp = new Date();
+        const time = NumberUtils.getUint32BE(this.buffer, 0);
+        timestamp.setTime(Math.floor(time) * 1000);
+        return timestamp;
+    }
+    static createPk() {
+        return new ObjectId();
+    }
+    serializeInto(uint8array, index) {
+        uint8array[index] = this.buffer[0];
+        uint8array[index + 1] = this.buffer[1];
+        uint8array[index + 2] = this.buffer[2];
+        uint8array[index + 3] = this.buffer[3];
+        uint8array[index + 4] = this.buffer[4];
+        uint8array[index + 5] = this.buffer[5];
+        uint8array[index + 6] = this.buffer[6];
+        uint8array[index + 7] = this.buffer[7];
+        uint8array[index + 8] = this.buffer[8];
+        uint8array[index + 9] = this.buffer[9];
+        uint8array[index + 10] = this.buffer[10];
+        uint8array[index + 11] = this.buffer[11];
+        return 12;
+    }
+    static createFromTime(time) {
+        const buffer = ByteUtils.allocate(12);
+        for (let i = 11; i >= 4; i--)
+            buffer[i] = 0;
+        NumberUtils.setInt32BE(buffer, 0, time);
+        return new ObjectId(buffer);
+    }
+    static createFromHexString(hexString) {
+        if (hexString?.length !== 24) {
+            throw new BSONError('hex string must be 24 characters');
+        }
+        return new ObjectId(ByteUtils.fromHex(hexString));
+    }
+    static createFromBase64(base64) {
+        if (base64?.length !== 16) {
+            throw new BSONError('base64 string must be 16 characters');
+        }
+        return new ObjectId(ByteUtils.fromBase64(base64));
+    }
+    static isValid(id) {
+        if (id == null)
+            return false;
+        if (typeof id === 'string')
+            return ObjectId.validateHexString(id);
+        try {
+            new ObjectId(id);
+            return true;
+        }
+        catch {
+            return false;
+        }
+    }
+    toExtendedJSON() {
+        if (this.toHexString)
+            return { $oid: this.toHexString() };
+        return { $oid: this.toString('hex') };
+    }
+    static fromExtendedJSON(doc) {
+        return new ObjectId(doc.$oid);
+    }
+    isCached() {
+        return ObjectId.cacheHexString && __idCache.has(this);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        return `new ObjectId(${inspect(this.toHexString(), options)})`;
+    }
+}
+ObjectId.index = Math.floor(Math.random() * 0xffffff);
+
+function internalCalculateObjectSize(object, serializeFunctions, ignoreUndefined) {
+    let totalLength = 4 + 1;
+    if (Array.isArray(object)) {
+        for (let i = 0; i < object.length; i++) {
+            totalLength += calculateElement(i.toString(), object[i], serializeFunctions, true, ignoreUndefined);
+        }
+    }
+    else {
+        if (typeof object?.toBSON === 'function') {
+            object = object.toBSON();
+        }
+        for (const key of Object.keys(object)) {
+            totalLength += calculateElement(key, object[key], serializeFunctions, false, ignoreUndefined);
+        }
+    }
+    return totalLength;
+}
+function calculateElement(name, value, serializeFunctions = false, isArray = false, ignoreUndefined = false) {
+    if (typeof value?.toBSON === 'function') {
+        value = value.toBSON();
+    }
+    switch (typeof value) {
+        case 'string':
+            return 1 + ByteUtils.utf8ByteLength(name) + 1 + 4 + ByteUtils.utf8ByteLength(value) + 1;
+        case 'number':
+            if (Math.floor(value) === value &&
+                value >= JS_INT_MIN &&
+                value <= JS_INT_MAX) {
+                if (value >= BSON_INT32_MIN && value <= BSON_INT32_MAX) {
+                    return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (4 + 1);
+                }
+                else {
+                    return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+                }
+            }
+            else {
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+            }
+        case 'undefined':
+            if (isArray || !ignoreUndefined)
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + 1;
+            return 0;
+        case 'boolean':
+            return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (1 + 1);
+        case 'object':
+            if (value != null &&
+                typeof value._bsontype === 'string' &&
+                value[BSON_VERSION_SYMBOL] !== BSON_MAJOR_VERSION) {
+                throw new BSONVersionError();
+            }
+            else if (value == null || value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') {
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + 1;
+            }
+            else if (value._bsontype === 'ObjectId') {
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (12 + 1);
+            }
+            else if (value instanceof Date || isDate(value)) {
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+            }
+            else if (ArrayBuffer.isView(value) ||
+                value instanceof ArrayBuffer ||
+                isAnyArrayBuffer(value)) {
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (1 + 4 + 1) + value.byteLength);
+            }
+            else if (value._bsontype === 'Long' ||
+                value._bsontype === 'Double' ||
+                value._bsontype === 'Timestamp') {
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+            }
+            else if (value._bsontype === 'Decimal128') {
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (16 + 1);
+            }
+            else if (value._bsontype === 'Code') {
+                if (value.scope != null && Object.keys(value.scope).length > 0) {
+                    return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                        1 +
+                        4 +
+                        4 +
+                        ByteUtils.utf8ByteLength(value.code.toString()) +
+                        1 +
+                        internalCalculateObjectSize(value.scope, serializeFunctions, ignoreUndefined));
+                }
+                else {
+                    return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                        1 +
+                        4 +
+                        ByteUtils.utf8ByteLength(value.code.toString()) +
+                        1);
+                }
+            }
+            else if (value._bsontype === 'Binary') {
+                const binary = value;
+                if (binary.sub_type === Binary.SUBTYPE_BYTE_ARRAY) {
+                    return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                        (binary.position + 1 + 4 + 1 + 4));
+                }
+                else {
+                    return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (binary.position + 1 + 4 + 1));
+                }
+            }
+            else if (value._bsontype === 'Symbol') {
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                    ByteUtils.utf8ByteLength(value.value) +
+                    4 +
+                    1 +
+                    1);
+            }
+            else if (value._bsontype === 'DBRef') {
+                const ordered_values = Object.assign({
+                    $ref: value.collection,
+                    $id: value.oid
+                }, value.fields);
+                if (value.db != null) {
+                    ordered_values['$db'] = value.db;
+                }
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                    1 +
+                    internalCalculateObjectSize(ordered_values, serializeFunctions, ignoreUndefined));
+            }
+            else if (value instanceof RegExp || isRegExp(value)) {
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                    1 +
+                    ByteUtils.utf8ByteLength(value.source) +
+                    1 +
+                    (value.global ? 1 : 0) +
+                    (value.ignoreCase ? 1 : 0) +
+                    (value.multiline ? 1 : 0) +
+                    1);
+            }
+            else if (value._bsontype === 'BSONRegExp') {
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                    1 +
+                    ByteUtils.utf8ByteLength(value.pattern) +
+                    1 +
+                    ByteUtils.utf8ByteLength(value.options) +
+                    1);
+            }
+            else {
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                    internalCalculateObjectSize(value, serializeFunctions, ignoreUndefined) +
+                    1);
+            }
+        case 'function':
+            if (serializeFunctions) {
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                    1 +
+                    4 +
+                    ByteUtils.utf8ByteLength(value.toString()) +
+                    1);
+            }
+            return 0;
+        case 'bigint':
+            return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+        case 'symbol':
+            return 0;
+        default:
+            throw new BSONError(`Unrecognized JS type: ${typeof value}`);
+    }
+}
+
+function alphabetize(str) {
+    return str.split('').sort().join('');
+}
+class BSONRegExp extends BSONValue {
+    get _bsontype() {
+        return 'BSONRegExp';
+    }
+    constructor(pattern, options) {
+        super();
+        this.pattern = pattern;
+        this.options = alphabetize(options ?? '');
+        if (this.pattern.indexOf('\x00') !== -1) {
+            throw new BSONError(`BSON Regex patterns cannot contain null bytes, found: ${JSON.stringify(this.pattern)}`);
+        }
+        if (this.options.indexOf('\x00') !== -1) {
+            throw new BSONError(`BSON Regex options cannot contain null bytes, found: ${JSON.stringify(this.options)}`);
+        }
+        for (let i = 0; i < this.options.length; i++) {
+            if (!(this.options[i] === 'i' ||
+                this.options[i] === 'm' ||
+                this.options[i] === 'x' ||
+                this.options[i] === 'l' ||
+                this.options[i] === 's' ||
+                this.options[i] === 'u')) {
+                throw new BSONError(`The regular expression option [${this.options[i]}] is not supported`);
+            }
+        }
+    }
+    static parseOptions(options) {
+        return options ? options.split('').sort().join('') : '';
+    }
+    toExtendedJSON(options) {
+        options = options || {};
+        if (options.legacy) {
+            return { $regex: this.pattern, $options: this.options };
+        }
+        return { $regularExpression: { pattern: this.pattern, options: this.options } };
+    }
+    static fromExtendedJSON(doc) {
+        if ('$regex' in doc) {
+            if (typeof doc.$regex !== 'string') {
+                if (doc.$regex._bsontype === 'BSONRegExp') {
+                    return doc;
+                }
+            }
+            else {
+                return new BSONRegExp(doc.$regex, BSONRegExp.parseOptions(doc.$options));
+            }
+        }
+        if ('$regularExpression' in doc) {
+            return new BSONRegExp(doc.$regularExpression.pattern, BSONRegExp.parseOptions(doc.$regularExpression.options));
+        }
+        throw new BSONError(`Unexpected BSONRegExp EJSON object form: ${JSON.stringify(doc)}`);
+    }
+    inspect(depth, options, inspect) {
+        const stylize = getStylizeFunction(options) ?? (v => v);
+        inspect ??= defaultInspect;
+        const pattern = stylize(inspect(this.pattern), 'regexp');
+        const flags = stylize(inspect(this.options), 'regexp');
+        return `new BSONRegExp(${pattern}, ${flags})`;
+    }
+}
+
+class BSONSymbol extends BSONValue {
+    get _bsontype() {
+        return 'BSONSymbol';
+    }
+    constructor(value) {
+        super();
+        this.value = value;
+    }
+    valueOf() {
+        return this.value;
+    }
+    toString() {
+        return this.value;
+    }
+    toJSON() {
+        return this.value;
+    }
+    toExtendedJSON() {
+        return { $symbol: this.value };
+    }
+    static fromExtendedJSON(doc) {
+        return new BSONSymbol(doc.$symbol);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        return `new BSONSymbol(${inspect(this.value, options)})`;
+    }
+}
+
+const LongWithoutOverridesClass = Long;
+class Timestamp extends LongWithoutOverridesClass {
+    get _bsontype() {
+        return 'Timestamp';
+    }
+    get i() {
+        return this.low >>> 0;
+    }
+    get t() {
+        return this.high >>> 0;
+    }
+    constructor(low) {
+        if (low == null) {
+            super(0, 0, true);
+        }
+        else if (typeof low === 'bigint') {
+            super(low, true);
+        }
+        else if (Long.isLong(low)) {
+            super(low.low, low.high, true);
+        }
+        else if (typeof low === 'object' && 't' in low && 'i' in low) {
+            if (typeof low.t !== 'number' && (typeof low.t !== 'object' || low.t._bsontype !== 'Int32')) {
+                throw new BSONError('Timestamp constructed from { t, i } must provide t as a number');
+            }
+            if (typeof low.i !== 'number' && (typeof low.i !== 'object' || low.i._bsontype !== 'Int32')) {
+                throw new BSONError('Timestamp constructed from { t, i } must provide i as a number');
+            }
+            const t = Number(low.t);
+            const i = Number(low.i);
+            if (t < 0 || Number.isNaN(t)) {
+                throw new BSONError('Timestamp constructed from { t, i } must provide a positive t');
+            }
+            if (i < 0 || Number.isNaN(i)) {
+                throw new BSONError('Timestamp constructed from { t, i } must provide a positive i');
+            }
+            if (t > 0xffff_ffff) {
+                throw new BSONError('Timestamp constructed from { t, i } must provide t equal or less than uint32 max');
+            }
+            if (i > 0xffff_ffff) {
+                throw new BSONError('Timestamp constructed from { t, i } must provide i equal or less than uint32 max');
+            }
+            super(i, t, true);
+        }
+        else {
+            throw new BSONError('A Timestamp can only be constructed with: bigint, Long, or { t: number; i: number }');
+        }
+    }
+    toJSON() {
+        return {
+            $timestamp: this.toString()
+        };
+    }
+    static fromInt(value) {
+        return new Timestamp(Long.fromInt(value, true));
+    }
+    static fromNumber(value) {
+        return new Timestamp(Long.fromNumber(value, true));
+    }
+    static fromBits(lowBits, highBits) {
+        return new Timestamp({ i: lowBits, t: highBits });
+    }
+    static fromString(str, optRadix) {
+        return new Timestamp(Long.fromString(str, true, optRadix));
+    }
+    toExtendedJSON() {
+        return { $timestamp: { t: this.t, i: this.i } };
+    }
+    static fromExtendedJSON(doc) {
+        const i = Long.isLong(doc.$timestamp.i)
+            ? doc.$timestamp.i.getLowBitsUnsigned()
+            : doc.$timestamp.i;
+        const t = Long.isLong(doc.$timestamp.t)
+            ? doc.$timestamp.t.getLowBitsUnsigned()
+            : doc.$timestamp.t;
+        return new Timestamp({ t, i });
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        const t = inspect(this.t, options);
+        const i = inspect(this.i, options);
+        return `new Timestamp({ t: ${t}, i: ${i} })`;
+    }
+}
+Timestamp.MAX_VALUE = Long.MAX_UNSIGNED_VALUE;
+
+const JS_INT_MAX_LONG = Long.fromNumber(JS_INT_MAX);
+const JS_INT_MIN_LONG = Long.fromNumber(JS_INT_MIN);
+function internalDeserialize(buffer, options, isArray) {
+    options = options == null ? {} : options;
+    const index = options && options.index ? options.index : 0;
+    const size = NumberUtils.getInt32LE(buffer, index);
+    if (size < 5) {
+        throw new BSONError(`bson size must be >= 5, is ${size}`);
+    }
+    if (options.allowObjectSmallerThanBufferSize && buffer.length < size) {
+        throw new BSONError(`buffer length ${buffer.length} must be >= bson size ${size}`);
+    }
+    if (!options.allowObjectSmallerThanBufferSize && buffer.length !== size) {
+        throw new BSONError(`buffer length ${buffer.length} must === bson size ${size}`);
+    }
+    if (size + index > buffer.byteLength) {
+        throw new BSONError(`(bson size ${size} + options.index ${index} must be <= buffer length ${buffer.byteLength})`);
+    }
+    if (buffer[index + size - 1] !== 0) {
+        throw new BSONError("One object, sized correctly, with a spot for an EOO, but the EOO isn't 0x00");
+    }
+    return deserializeObject(buffer, index, options, isArray);
+}
+const allowedDBRefKeys = /^\$ref$|^\$id$|^\$db$/;
+function deserializeObject(buffer, index, options, isArray = false) {
+    const fieldsAsRaw = options['fieldsAsRaw'] == null ? null : options['fieldsAsRaw'];
+    const raw = options['raw'] == null ? false : options['raw'];
+    const bsonRegExp = typeof options['bsonRegExp'] === 'boolean' ? options['bsonRegExp'] : false;
+    const promoteBuffers = options.promoteBuffers ?? false;
+    const promoteLongs = options.promoteLongs ?? true;
+    const promoteValues = options.promoteValues ?? true;
+    const useBigInt64 = options.useBigInt64 ?? false;
+    if (useBigInt64 && !promoteValues) {
+        throw new BSONError('Must either request bigint or Long for int64 deserialization');
+    }
+    if (useBigInt64 && !promoteLongs) {
+        throw new BSONError('Must either request bigint or Long for int64 deserialization');
+    }
+    const validation = options.validation == null ? { utf8: true } : options.validation;
+    let globalUTFValidation = true;
+    let validationSetting;
+    let utf8KeysSet;
+    const utf8ValidatedKeys = validation.utf8;
+    if (typeof utf8ValidatedKeys === 'boolean') {
+        validationSetting = utf8ValidatedKeys;
+    }
+    else {
+        globalUTFValidation = false;
+        const utf8ValidationValues = Object.keys(utf8ValidatedKeys).map(function (key) {
+            return utf8ValidatedKeys[key];
+        });
+        if (utf8ValidationValues.length === 0) {
+            throw new BSONError('UTF-8 validation setting cannot be empty');
+        }
+        if (typeof utf8ValidationValues[0] !== 'boolean') {
+            throw new BSONError('Invalid UTF-8 validation option, must specify boolean values');
+        }
+        validationSetting = utf8ValidationValues[0];
+        if (!utf8ValidationValues.every(item => item === validationSetting)) {
+            throw new BSONError('Invalid UTF-8 validation option - keys must be all true or all false');
+        }
+    }
+    if (!globalUTFValidation) {
+        utf8KeysSet = new Set();
+        for (const key of Object.keys(utf8ValidatedKeys)) {
+            utf8KeysSet.add(key);
+        }
+    }
+    const startIndex = index;
+    if (buffer.length < 5)
+        throw new BSONError('corrupt bson message < 5 bytes long');
+    const size = NumberUtils.getInt32LE(buffer, index);
+    index += 4;
+    if (size < 5 || size > buffer.length)
+        throw new BSONError('corrupt bson message');
+    const object = isArray ? [] : {};
+    let arrayIndex = 0;
+    const done = false;
+    let isPossibleDBRef = isArray ? false : null;
+    while (!done) {
+        const elementType = buffer[index++];
+        if (elementType === 0)
+            break;
+        let i = index;
+        while (buffer[i] !== 0x00 && i < buffer.length) {
+            i++;
+        }
+        if (i >= buffer.byteLength)
+            throw new BSONError('Bad BSON Document: illegal CString');
+        const name = isArray ? arrayIndex++ : ByteUtils.toUTF8(buffer, index, i, false);
+        let shouldValidateKey = true;
+        if (globalUTFValidation || utf8KeysSet?.has(name)) {
+            shouldValidateKey = validationSetting;
+        }
+        else {
+            shouldValidateKey = !validationSetting;
+        }
+        if (isPossibleDBRef !== false && name[0] === '$') {
+            isPossibleDBRef = allowedDBRefKeys.test(name);
+        }
+        let value;
+        index = i + 1;
+        if (elementType === BSON_DATA_STRING) {
+            const stringSize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            if (stringSize <= 0 ||
+                stringSize > buffer.length - index ||
+                buffer[index + stringSize - 1] !== 0) {
+                throw new BSONError('bad string length in bson');
+            }
+            value = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey);
+            index = index + stringSize;
+        }
+        else if (elementType === BSON_DATA_OID) {
+            const oid = ByteUtils.allocateUnsafe(12);
+            for (let i = 0; i < 12; i++)
+                oid[i] = buffer[index + i];
+            value = new ObjectId(oid);
+            index = index + 12;
+        }
+        else if (elementType === BSON_DATA_INT && promoteValues === false) {
+            value = new Int32(NumberUtils.getInt32LE(buffer, index));
+            index += 4;
+        }
+        else if (elementType === BSON_DATA_INT) {
+            value = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+        }
+        else if (elementType === BSON_DATA_NUMBER) {
+            value = NumberUtils.getFloat64LE(buffer, index);
+            index += 8;
+            if (promoteValues === false)
+                value = new Double(value);
+        }
+        else if (elementType === BSON_DATA_DATE) {
+            const lowBits = NumberUtils.getInt32LE(buffer, index);
+            const highBits = NumberUtils.getInt32LE(buffer, index + 4);
+            index += 8;
+            value = new Date(new Long(lowBits, highBits).toNumber());
+        }
+        else if (elementType === BSON_DATA_BOOLEAN) {
+            if (buffer[index] !== 0 && buffer[index] !== 1)
+                throw new BSONError('illegal boolean type value');
+            value = buffer[index++] === 1;
+        }
+        else if (elementType === BSON_DATA_OBJECT) {
+            const _index = index;
+            const objectSize = NumberUtils.getInt32LE(buffer, index);
+            if (objectSize <= 0 || objectSize > buffer.length - index)
+                throw new BSONError('bad embedded document length in bson');
+            if (raw) {
+                value = buffer.subarray(index, index + objectSize);
+            }
+            else {
+                let objectOptions = options;
+                if (!globalUTFValidation) {
+                    objectOptions = { ...options, validation: { utf8: shouldValidateKey } };
+                }
+                value = deserializeObject(buffer, _index, objectOptions, false);
+            }
+            index = index + objectSize;
+        }
+        else if (elementType === BSON_DATA_ARRAY) {
+            const _index = index;
+            const objectSize = NumberUtils.getInt32LE(buffer, index);
+            let arrayOptions = options;
+            const stopIndex = index + objectSize;
+            if (fieldsAsRaw && fieldsAsRaw[name]) {
+                arrayOptions = { ...options, raw: true };
+            }
+            if (!globalUTFValidation) {
+                arrayOptions = { ...arrayOptions, validation: { utf8: shouldValidateKey } };
+            }
+            value = deserializeObject(buffer, _index, arrayOptions, true);
+            index = index + objectSize;
+            if (buffer[index - 1] !== 0)
+                throw new BSONError('invalid array terminator byte');
+            if (index !== stopIndex)
+                throw new BSONError('corrupted array bson');
+        }
+        else if (elementType === BSON_DATA_UNDEFINED) {
+            value = undefined;
+        }
+        else if (elementType === BSON_DATA_NULL) {
+            value = null;
+        }
+        else if (elementType === BSON_DATA_LONG) {
+            if (useBigInt64) {
+                value = NumberUtils.getBigInt64LE(buffer, index);
+                index += 8;
+            }
+            else {
+                const lowBits = NumberUtils.getInt32LE(buffer, index);
+                const highBits = NumberUtils.getInt32LE(buffer, index + 4);
+                index += 8;
+                const long = new Long(lowBits, highBits);
+                if (promoteLongs && promoteValues === true) {
+                    value =
+                        long.lessThanOrEqual(JS_INT_MAX_LONG) && long.greaterThanOrEqual(JS_INT_MIN_LONG)
+                            ? long.toNumber()
+                            : long;
+                }
+                else {
+                    value = long;
+                }
+            }
+        }
+        else if (elementType === BSON_DATA_DECIMAL128) {
+            const bytes = ByteUtils.allocateUnsafe(16);
+            for (let i = 0; i < 16; i++)
+                bytes[i] = buffer[index + i];
+            index = index + 16;
+            value = new Decimal128(bytes);
+        }
+        else if (elementType === BSON_DATA_BINARY) {
+            let binarySize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            const totalBinarySize = binarySize;
+            const subType = buffer[index++];
+            if (binarySize < 0)
+                throw new BSONError('Negative binary type element size found');
+            if (binarySize > buffer.byteLength)
+                throw new BSONError('Binary type size larger than document size');
+            if (subType === Binary.SUBTYPE_BYTE_ARRAY) {
+                binarySize = NumberUtils.getInt32LE(buffer, index);
+                index += 4;
+                if (binarySize < 0)
+                    throw new BSONError('Negative binary type element size found for subtype 0x02');
+                if (binarySize > totalBinarySize - 4)
+                    throw new BSONError('Binary type with subtype 0x02 contains too long binary size');
+                if (binarySize < totalBinarySize - 4)
+                    throw new BSONError('Binary type with subtype 0x02 contains too short binary size');
+            }
+            if (promoteBuffers && promoteValues) {
+                value = ByteUtils.toLocalBufferType(buffer.subarray(index, index + binarySize));
+            }
+            else {
+                value = new Binary(buffer.subarray(index, index + binarySize), subType);
+                if (subType === BSON_BINARY_SUBTYPE_UUID_NEW && UUID.isValid(value)) {
+                    value = value.toUUID();
+                }
+            }
+            index = index + binarySize;
+        }
+        else if (elementType === BSON_DATA_REGEXP && bsonRegExp === false) {
+            i = index;
+            while (buffer[i] !== 0x00 && i < buffer.length) {
+                i++;
+            }
+            if (i >= buffer.length)
+                throw new BSONError('Bad BSON Document: illegal CString');
+            const source = ByteUtils.toUTF8(buffer, index, i, false);
+            index = i + 1;
+            i = index;
+            while (buffer[i] !== 0x00 && i < buffer.length) {
+                i++;
+            }
+            if (i >= buffer.length)
+                throw new BSONError('Bad BSON Document: illegal CString');
+            const regExpOptions = ByteUtils.toUTF8(buffer, index, i, false);
+            index = i + 1;
+            const optionsArray = new Array(regExpOptions.length);
+            for (i = 0; i < regExpOptions.length; i++) {
+                switch (regExpOptions[i]) {
+                    case 'm':
+                        optionsArray[i] = 'm';
+                        break;
+                    case 's':
+                        optionsArray[i] = 'g';
+                        break;
+                    case 'i':
+                        optionsArray[i] = 'i';
+                        break;
+                }
+            }
+            value = new RegExp(source, optionsArray.join(''));
+        }
+        else if (elementType === BSON_DATA_REGEXP && bsonRegExp === true) {
+            i = index;
+            while (buffer[i] !== 0x00 && i < buffer.length) {
+                i++;
+            }
+            if (i >= buffer.length)
+                throw new BSONError('Bad BSON Document: illegal CString');
+            const source = ByteUtils.toUTF8(buffer, index, i, false);
+            index = i + 1;
+            i = index;
+            while (buffer[i] !== 0x00 && i < buffer.length) {
+                i++;
+            }
+            if (i >= buffer.length)
+                throw new BSONError('Bad BSON Document: illegal CString');
+            const regExpOptions = ByteUtils.toUTF8(buffer, index, i, false);
+            index = i + 1;
+            value = new BSONRegExp(source, regExpOptions);
+        }
+        else if (elementType === BSON_DATA_SYMBOL) {
+            const stringSize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            if (stringSize <= 0 ||
+                stringSize > buffer.length - index ||
+                buffer[index + stringSize - 1] !== 0) {
+                throw new BSONError('bad string length in bson');
+            }
+            const symbol = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey);
+            value = promoteValues ? symbol : new BSONSymbol(symbol);
+            index = index + stringSize;
+        }
+        else if (elementType === BSON_DATA_TIMESTAMP) {
+            value = new Timestamp({
+                i: NumberUtils.getUint32LE(buffer, index),
+                t: NumberUtils.getUint32LE(buffer, index + 4)
+            });
+            index += 8;
+        }
+        else if (elementType === BSON_DATA_MIN_KEY) {
+            value = new MinKey();
+        }
+        else if (elementType === BSON_DATA_MAX_KEY) {
+            value = new MaxKey();
+        }
+        else if (elementType === BSON_DATA_CODE) {
+            const stringSize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            if (stringSize <= 0 ||
+                stringSize > buffer.length - index ||
+                buffer[index + stringSize - 1] !== 0) {
+                throw new BSONError('bad string length in bson');
+            }
+            const functionString = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey);
+            value = new Code(functionString);
+            index = index + stringSize;
+        }
+        else if (elementType === BSON_DATA_CODE_W_SCOPE) {
+            const totalSize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            if (totalSize < 4 + 4 + 4 + 1) {
+                throw new BSONError('code_w_scope total size shorter minimum expected length');
+            }
+            const stringSize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            if (stringSize <= 0 ||
+                stringSize > buffer.length - index ||
+                buffer[index + stringSize - 1] !== 0) {
+                throw new BSONError('bad string length in bson');
+            }
+            const functionString = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey);
+            index = index + stringSize;
+            const _index = index;
+            const objectSize = NumberUtils.getInt32LE(buffer, index);
+            const scopeObject = deserializeObject(buffer, _index, options, false);
+            index = index + objectSize;
+            if (totalSize < 4 + 4 + objectSize + stringSize) {
+                throw new BSONError('code_w_scope total size is too short, truncating scope');
+            }
+            if (totalSize > 4 + 4 + objectSize + stringSize) {
+                throw new BSONError('code_w_scope total size is too long, clips outer document');
+            }
+            value = new Code(functionString, scopeObject);
+        }
+        else if (elementType === BSON_DATA_DBPOINTER) {
+            const stringSize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            if (stringSize <= 0 ||
+                stringSize > buffer.length - index ||
+                buffer[index + stringSize - 1] !== 0)
+                throw new BSONError('bad string length in bson');
+            const namespace = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey);
+            index = index + stringSize;
+            const oidBuffer = ByteUtils.allocateUnsafe(12);
+            for (let i = 0; i < 12; i++)
+                oidBuffer[i] = buffer[index + i];
+            const oid = new ObjectId(oidBuffer);
+            index = index + 12;
+            value = new DBRef(namespace, oid);
+        }
+        else {
+            throw new BSONError(`Detected unknown BSON type ${elementType.toString(16)} for fieldname "${name}"`);
+        }
+        if (name === '__proto__') {
+            Object.defineProperty(object, name, {
+                value,
+                writable: true,
+                enumerable: true,
+                configurable: true
+            });
+        }
+        else {
+            object[name] = value;
+        }
+    }
+    if (size !== index - startIndex) {
+        if (isArray)
+            throw new BSONError('corrupt array bson');
+        throw new BSONError('corrupt object bson');
+    }
+    if (!isPossibleDBRef)
+        return object;
+    if (isDBRefLike(object)) {
+        const copy = Object.assign({}, object);
+        delete copy.$ref;
+        delete copy.$id;
+        delete copy.$db;
+        return new DBRef(object.$ref, object.$id, object.$db, copy);
+    }
+    return object;
+}
+
+const regexp = /\x00/;
+const ignoreKeys = new Set(['$db', '$ref', '$id', '$clusterTime']);
+function serializeString(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_STRING;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes + 1;
+    buffer[index - 1] = 0;
+    const size = ByteUtils.encodeUTF8Into(buffer, value, index + 4);
+    NumberUtils.setInt32LE(buffer, index, size + 1);
+    index = index + 4 + size;
+    buffer[index++] = 0;
+    return index;
+}
+function serializeNumber(buffer, key, value, index) {
+    const isNegativeZero = Object.is(value, -0);
+    const type = !isNegativeZero &&
+        Number.isSafeInteger(value) &&
+        value <= BSON_INT32_MAX &&
+        value >= BSON_INT32_MIN
+        ? BSON_DATA_INT
+        : BSON_DATA_NUMBER;
+    buffer[index++] = type;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0x00;
+    if (type === BSON_DATA_INT) {
+        index += NumberUtils.setInt32LE(buffer, index, value);
+    }
+    else {
+        index += NumberUtils.setFloat64LE(buffer, index, value);
+    }
+    return index;
+}
+function serializeBigInt(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_LONG;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index += numberOfWrittenBytes;
+    buffer[index++] = 0;
+    index += NumberUtils.setBigInt64LE(buffer, index, value);
+    return index;
+}
+function serializeNull(buffer, key, _, index) {
+    buffer[index++] = BSON_DATA_NULL;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    return index;
+}
+function serializeBoolean(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_BOOLEAN;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    buffer[index++] = value ? 1 : 0;
+    return index;
+}
+function serializeDate(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_DATE;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const dateInMilis = Long.fromNumber(value.getTime());
+    const lowBits = dateInMilis.getLowBits();
+    const highBits = dateInMilis.getHighBits();
+    index += NumberUtils.setInt32LE(buffer, index, lowBits);
+    index += NumberUtils.setInt32LE(buffer, index, highBits);
+    return index;
+}
+function serializeRegExp(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_REGEXP;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    if (value.source && value.source.match(regexp) != null) {
+        throw new BSONError('value ' + value.source + ' must not contain null bytes');
+    }
+    index = index + ByteUtils.encodeUTF8Into(buffer, value.source, index);
+    buffer[index++] = 0x00;
+    if (value.ignoreCase)
+        buffer[index++] = 0x69;
+    if (value.global)
+        buffer[index++] = 0x73;
+    if (value.multiline)
+        buffer[index++] = 0x6d;
+    buffer[index++] = 0x00;
+    return index;
+}
+function serializeBSONRegExp(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_REGEXP;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    if (value.pattern.match(regexp) != null) {
+        throw new BSONError('pattern ' + value.pattern + ' must not contain null bytes');
+    }
+    index = index + ByteUtils.encodeUTF8Into(buffer, value.pattern, index);
+    buffer[index++] = 0x00;
+    const sortedOptions = value.options.split('').sort().join('');
+    index = index + ByteUtils.encodeUTF8Into(buffer, sortedOptions, index);
+    buffer[index++] = 0x00;
+    return index;
+}
+function serializeMinMax(buffer, key, value, index) {
+    if (value === null) {
+        buffer[index++] = BSON_DATA_NULL;
+    }
+    else if (value._bsontype === 'MinKey') {
+        buffer[index++] = BSON_DATA_MIN_KEY;
+    }
+    else {
+        buffer[index++] = BSON_DATA_MAX_KEY;
+    }
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    return index;
+}
+function serializeObjectId(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_OID;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    index += value.serializeInto(buffer, index);
+    return index;
+}
+function serializeBuffer(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_BINARY;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const size = value.length;
+    index += NumberUtils.setInt32LE(buffer, index, size);
+    buffer[index++] = BSON_BINARY_SUBTYPE_DEFAULT;
+    if (size <= 16) {
+        for (let i = 0; i < size; i++)
+            buffer[index + i] = value[i];
+    }
+    else {
+        buffer.set(value, index);
+    }
+    index = index + size;
+    return index;
+}
+function serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path) {
+    if (path.has(value)) {
+        throw new BSONError('Cannot convert circular structure to BSON');
+    }
+    path.add(value);
+    buffer[index++] = Array.isArray(value) ? BSON_DATA_ARRAY : BSON_DATA_OBJECT;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const endIndex = serializeInto(buffer, value, checkKeys, index, depth + 1, serializeFunctions, ignoreUndefined, path);
+    path.delete(value);
+    return endIndex;
+}
+function serializeDecimal128(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_DECIMAL128;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    for (let i = 0; i < 16; i++)
+        buffer[index + i] = value.bytes[i];
+    return index + 16;
+}
+function serializeLong(buffer, key, value, index) {
+    buffer[index++] =
+        value._bsontype === 'Long' ? BSON_DATA_LONG : BSON_DATA_TIMESTAMP;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const lowBits = value.getLowBits();
+    const highBits = value.getHighBits();
+    index += NumberUtils.setInt32LE(buffer, index, lowBits);
+    index += NumberUtils.setInt32LE(buffer, index, highBits);
+    return index;
+}
+function serializeInt32(buffer, key, value, index) {
+    value = value.valueOf();
+    buffer[index++] = BSON_DATA_INT;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    index += NumberUtils.setInt32LE(buffer, index, value);
+    return index;
+}
+function serializeDouble(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_NUMBER;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    index += NumberUtils.setFloat64LE(buffer, index, value.value);
+    return index;
+}
+function serializeFunction(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_CODE;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const functionString = value.toString();
+    const size = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1;
+    NumberUtils.setInt32LE(buffer, index, size);
+    index = index + 4 + size - 1;
+    buffer[index++] = 0;
+    return index;
+}
+function serializeCode(buffer, key, value, index, checkKeys = false, depth = 0, serializeFunctions = false, ignoreUndefined = true, path) {
+    if (value.scope && typeof value.scope === 'object') {
+        buffer[index++] = BSON_DATA_CODE_W_SCOPE;
+        const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+        index = index + numberOfWrittenBytes;
+        buffer[index++] = 0;
+        let startIndex = index;
+        const functionString = value.code;
+        index = index + 4;
+        const codeSize = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1;
+        NumberUtils.setInt32LE(buffer, index, codeSize);
+        buffer[index + 4 + codeSize - 1] = 0;
+        index = index + codeSize + 4;
+        const endIndex = serializeInto(buffer, value.scope, checkKeys, index, depth + 1, serializeFunctions, ignoreUndefined, path);
+        index = endIndex - 1;
+        const totalSize = endIndex - startIndex;
+        startIndex += NumberUtils.setInt32LE(buffer, startIndex, totalSize);
+        buffer[index++] = 0;
+    }
+    else {
+        buffer[index++] = BSON_DATA_CODE;
+        const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+        index = index + numberOfWrittenBytes;
+        buffer[index++] = 0;
+        const functionString = value.code.toString();
+        const size = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1;
+        NumberUtils.setInt32LE(buffer, index, size);
+        index = index + 4 + size - 1;
+        buffer[index++] = 0;
+    }
+    return index;
+}
+function serializeBinary(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_BINARY;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const data = value.buffer;
+    let size = value.position;
+    if (value.sub_type === Binary.SUBTYPE_BYTE_ARRAY)
+        size = size + 4;
+    index += NumberUtils.setInt32LE(buffer, index, size);
+    buffer[index++] = value.sub_type;
+    if (value.sub_type === Binary.SUBTYPE_BYTE_ARRAY) {
+        size = size - 4;
+        index += NumberUtils.setInt32LE(buffer, index, size);
+    }
+    if (value.sub_type === Binary.SUBTYPE_VECTOR) {
+        validateBinaryVector(value);
+    }
+    if (size <= 16) {
+        for (let i = 0; i < size; i++)
+            buffer[index + i] = data[i];
+    }
+    else {
+        buffer.set(data, index);
+    }
+    index = index + value.position;
+    return index;
+}
+function serializeSymbol(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_SYMBOL;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const size = ByteUtils.encodeUTF8Into(buffer, value.value, index + 4) + 1;
+    NumberUtils.setInt32LE(buffer, index, size);
+    index = index + 4 + size - 1;
+    buffer[index++] = 0;
+    return index;
+}
+function serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path) {
+    buffer[index++] = BSON_DATA_OBJECT;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    let startIndex = index;
+    let output = {
+        $ref: value.collection || value.namespace,
+        $id: value.oid
+    };
+    if (value.db != null) {
+        output.$db = value.db;
+    }
+    output = Object.assign(output, value.fields);
+    const endIndex = serializeInto(buffer, output, false, index, depth + 1, serializeFunctions, true, path);
+    const size = endIndex - startIndex;
+    startIndex += NumberUtils.setInt32LE(buffer, index, size);
+    return endIndex;
+}
+function serializeInto(buffer, object, checkKeys, startingIndex, depth, serializeFunctions, ignoreUndefined, path) {
+    if (path == null) {
+        if (object == null) {
+            buffer[0] = 0x05;
+            buffer[1] = 0x00;
+            buffer[2] = 0x00;
+            buffer[3] = 0x00;
+            buffer[4] = 0x00;
+            return 5;
+        }
+        if (Array.isArray(object)) {
+            throw new BSONError('serialize does not support an array as the root input');
+        }
+        if (typeof object !== 'object') {
+            throw new BSONError('serialize does not support non-object as the root input');
+        }
+        else if ('_bsontype' in object && typeof object._bsontype === 'string') {
+            throw new BSONError(`BSON types cannot be serialized as a document`);
+        }
+        else if (isDate(object) ||
+            isRegExp(object) ||
+            isUint8Array(object) ||
+            isAnyArrayBuffer(object)) {
+            throw new BSONError(`date, regexp, typedarray, and arraybuffer cannot be BSON documents`);
+        }
+        path = new Set();
+    }
+    path.add(object);
+    let index = startingIndex + 4;
+    if (Array.isArray(object)) {
+        for (let i = 0; i < object.length; i++) {
+            const key = `${i}`;
+            let value = object[i];
+            if (typeof value?.toBSON === 'function') {
+                value = value.toBSON();
+            }
+            const type = typeof value;
+            if (value === undefined) {
+                index = serializeNull(buffer, key, value, index);
+            }
+            else if (value === null) {
+                index = serializeNull(buffer, key, value, index);
+            }
+            else if (type === 'string') {
+                index = serializeString(buffer, key, value, index);
+            }
+            else if (type === 'number') {
+                index = serializeNumber(buffer, key, value, index);
+            }
+            else if (type === 'bigint') {
+                index = serializeBigInt(buffer, key, value, index);
+            }
+            else if (type === 'boolean') {
+                index = serializeBoolean(buffer, key, value, index);
+            }
+            else if (type === 'object' && value._bsontype == null) {
+                if (value instanceof Date || isDate(value)) {
+                    index = serializeDate(buffer, key, value, index);
+                }
+                else if (value instanceof Uint8Array || isUint8Array(value)) {
+                    index = serializeBuffer(buffer, key, value, index);
+                }
+                else if (value instanceof RegExp || isRegExp(value)) {
+                    index = serializeRegExp(buffer, key, value, index);
+                }
+                else {
+                    index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path);
+                }
+            }
+            else if (type === 'object') {
+                if (value[BSON_VERSION_SYMBOL] !== BSON_MAJOR_VERSION) {
+                    throw new BSONVersionError();
+                }
+                else if (value._bsontype === 'ObjectId') {
+                    index = serializeObjectId(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Decimal128') {
+                    index = serializeDecimal128(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') {
+                    index = serializeLong(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Double') {
+                    index = serializeDouble(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Code') {
+                    index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path);
+                }
+                else if (value._bsontype === 'Binary') {
+                    index = serializeBinary(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'BSONSymbol') {
+                    index = serializeSymbol(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'DBRef') {
+                    index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path);
+                }
+                else if (value._bsontype === 'BSONRegExp') {
+                    index = serializeBSONRegExp(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Int32') {
+                    index = serializeInt32(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') {
+                    index = serializeMinMax(buffer, key, value, index);
+                }
+                else if (typeof value._bsontype !== 'undefined') {
+                    throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`);
+                }
+            }
+            else if (type === 'function' && serializeFunctions) {
+                index = serializeFunction(buffer, key, value, index);
+            }
+        }
+    }
+    else if (object instanceof Map || isMap(object)) {
+        const iterator = object.entries();
+        let done = false;
+        while (!done) {
+            const entry = iterator.next();
+            done = !!entry.done;
+            if (done)
+                continue;
+            const key = entry.value[0];
+            let value = entry.value[1];
+            if (typeof value?.toBSON === 'function') {
+                value = value.toBSON();
+            }
+            const type = typeof value;
+            if (typeof key === 'string' && !ignoreKeys.has(key)) {
+                if (key.match(regexp) != null) {
+                    throw new BSONError('key ' + key + ' must not contain null bytes');
+                }
+                if (checkKeys) {
+                    if ('$' === key[0]) {
+                        throw new BSONError('key ' + key + " must not start with '$'");
+                    }
+                    else if (key.includes('.')) {
+                        throw new BSONError('key ' + key + " must not contain '.'");
+                    }
+                }
+            }
+            if (value === undefined) {
+                if (ignoreUndefined === false)
+                    index = serializeNull(buffer, key, value, index);
+            }
+            else if (value === null) {
+                index = serializeNull(buffer, key, value, index);
+            }
+            else if (type === 'string') {
+                index = serializeString(buffer, key, value, index);
+            }
+            else if (type === 'number') {
+                index = serializeNumber(buffer, key, value, index);
+            }
+            else if (type === 'bigint') {
+                index = serializeBigInt(buffer, key, value, index);
+            }
+            else if (type === 'boolean') {
+                index = serializeBoolean(buffer, key, value, index);
+            }
+            else if (type === 'object' && value._bsontype == null) {
+                if (value instanceof Date || isDate(value)) {
+                    index = serializeDate(buffer, key, value, index);
+                }
+                else if (value instanceof Uint8Array || isUint8Array(value)) {
+                    index = serializeBuffer(buffer, key, value, index);
+                }
+                else if (value instanceof RegExp || isRegExp(value)) {
+                    index = serializeRegExp(buffer, key, value, index);
+                }
+                else {
+                    index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path);
+                }
+            }
+            else if (type === 'object') {
+                if (value[BSON_VERSION_SYMBOL] !== BSON_MAJOR_VERSION) {
+                    throw new BSONVersionError();
+                }
+                else if (value._bsontype === 'ObjectId') {
+                    index = serializeObjectId(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Decimal128') {
+                    index = serializeDecimal128(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') {
+                    index = serializeLong(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Double') {
+                    index = serializeDouble(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Code') {
+                    index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path);
+                }
+                else if (value._bsontype === 'Binary') {
+                    index = serializeBinary(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'BSONSymbol') {
+                    index = serializeSymbol(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'DBRef') {
+                    index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path);
+                }
+                else if (value._bsontype === 'BSONRegExp') {
+                    index = serializeBSONRegExp(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Int32') {
+                    index = serializeInt32(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') {
+                    index = serializeMinMax(buffer, key, value, index);
+                }
+                else if (typeof value._bsontype !== 'undefined') {
+                    throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`);
+                }
+            }
+            else if (type === 'function' && serializeFunctions) {
+                index = serializeFunction(buffer, key, value, index);
+            }
+        }
+    }
+    else {
+        if (typeof object?.toBSON === 'function') {
+            object = object.toBSON();
+            if (object != null && typeof object !== 'object') {
+                throw new BSONError('toBSON function did not return an object');
+            }
+        }
+        for (const key of Object.keys(object)) {
+            let value = object[key];
+            if (typeof value?.toBSON === 'function') {
+                value = value.toBSON();
+            }
+            const type = typeof value;
+            if (typeof key === 'string' && !ignoreKeys.has(key)) {
+                if (key.match(regexp) != null) {
+                    throw new BSONError('key ' + key + ' must not contain null bytes');
+                }
+                if (checkKeys) {
+                    if ('$' === key[0]) {
+                        throw new BSONError('key ' + key + " must not start with '$'");
+                    }
+                    else if (key.includes('.')) {
+                        throw new BSONError('key ' + key + " must not contain '.'");
+                    }
+                }
+            }
+            if (value === undefined) {
+                if (ignoreUndefined === false)
+                    index = serializeNull(buffer, key, value, index);
+            }
+            else if (value === null) {
+                index = serializeNull(buffer, key, value, index);
+            }
+            else if (type === 'string') {
+                index = serializeString(buffer, key, value, index);
+            }
+            else if (type === 'number') {
+                index = serializeNumber(buffer, key, value, index);
+            }
+            else if (type === 'bigint') {
+                index = serializeBigInt(buffer, key, value, index);
+            }
+            else if (type === 'boolean') {
+                index = serializeBoolean(buffer, key, value, index);
+            }
+            else if (type === 'object' && value._bsontype == null) {
+                if (value instanceof Date || isDate(value)) {
+                    index = serializeDate(buffer, key, value, index);
+                }
+                else if (value instanceof Uint8Array || isUint8Array(value)) {
+                    index = serializeBuffer(buffer, key, value, index);
+                }
+                else if (value instanceof RegExp || isRegExp(value)) {
+                    index = serializeRegExp(buffer, key, value, index);
+                }
+                else {
+                    index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path);
+                }
+            }
+            else if (type === 'object') {
+                if (value[BSON_VERSION_SYMBOL] !== BSON_MAJOR_VERSION) {
+                    throw new BSONVersionError();
+                }
+                else if (value._bsontype === 'ObjectId') {
+                    index = serializeObjectId(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Decimal128') {
+                    index = serializeDecimal128(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') {
+                    index = serializeLong(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Double') {
+                    index = serializeDouble(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Code') {
+                    index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path);
+                }
+                else if (value._bsontype === 'Binary') {
+                    index = serializeBinary(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'BSONSymbol') {
+                    index = serializeSymbol(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'DBRef') {
+                    index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path);
+                }
+                else if (value._bsontype === 'BSONRegExp') {
+                    index = serializeBSONRegExp(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Int32') {
+                    index = serializeInt32(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') {
+                    index = serializeMinMax(buffer, key, value, index);
+                }
+                else if (typeof value._bsontype !== 'undefined') {
+                    throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`);
+                }
+            }
+            else if (type === 'function' && serializeFunctions) {
+                index = serializeFunction(buffer, key, value, index);
+            }
+        }
+    }
+    path.delete(object);
+    buffer[index++] = 0x00;
+    const size = index - startingIndex;
+    startingIndex += NumberUtils.setInt32LE(buffer, startingIndex, size);
+    return index;
+}
+
+function isBSONType(value) {
+    return (value != null &&
+        typeof value === 'object' &&
+        '_bsontype' in value &&
+        typeof value._bsontype === 'string');
+}
+const keysToCodecs = {
+    $oid: ObjectId,
+    $binary: Binary,
+    $uuid: Binary,
+    $symbol: BSONSymbol,
+    $numberInt: Int32,
+    $numberDecimal: Decimal128,
+    $numberDouble: Double,
+    $numberLong: Long,
+    $minKey: MinKey,
+    $maxKey: MaxKey,
+    $regex: BSONRegExp,
+    $regularExpression: BSONRegExp,
+    $timestamp: Timestamp
+};
+function deserializeValue(value, options = {}) {
+    if (typeof value === 'number') {
+        const in32BitRange = value <= BSON_INT32_MAX && value >= BSON_INT32_MIN;
+        const in64BitRange = value <= BSON_INT64_MAX && value >= BSON_INT64_MIN;
+        if (options.relaxed || options.legacy) {
+            return value;
+        }
+        if (Number.isInteger(value) && !Object.is(value, -0)) {
+            if (in32BitRange) {
+                return new Int32(value);
+            }
+            if (in64BitRange) {
+                if (options.useBigInt64) {
+                    return BigInt(value);
+                }
+                return Long.fromNumber(value);
+            }
+        }
+        return new Double(value);
+    }
+    if (value == null || typeof value !== 'object')
+        return value;
+    if (value.$undefined)
+        return null;
+    const keys = Object.keys(value).filter(k => k.startsWith('$') && value[k] != null);
+    for (let i = 0; i < keys.length; i++) {
+        const c = keysToCodecs[keys[i]];
+        if (c)
+            return c.fromExtendedJSON(value, options);
+    }
+    if (value.$date != null) {
+        const d = value.$date;
+        const date = new Date();
+        if (options.legacy) {
+            if (typeof d === 'number')
+                date.setTime(d);
+            else if (typeof d === 'string')
+                date.setTime(Date.parse(d));
+            else if (typeof d === 'bigint')
+                date.setTime(Number(d));
+            else
+                throw new BSONRuntimeError(`Unrecognized type for EJSON date: ${typeof d}`);
+        }
+        else {
+            if (typeof d === 'string')
+                date.setTime(Date.parse(d));
+            else if (Long.isLong(d))
+                date.setTime(d.toNumber());
+            else if (typeof d === 'number' && options.relaxed)
+                date.setTime(d);
+            else if (typeof d === 'bigint')
+                date.setTime(Number(d));
+            else
+                throw new BSONRuntimeError(`Unrecognized type for EJSON date: ${typeof d}`);
+        }
+        return date;
+    }
+    if (value.$code != null) {
+        const copy = Object.assign({}, value);
+        if (value.$scope) {
+            copy.$scope = deserializeValue(value.$scope);
+        }
+        return Code.fromExtendedJSON(value);
+    }
+    if (isDBRefLike(value) || value.$dbPointer) {
+        const v = value.$ref ? value : value.$dbPointer;
+        if (v instanceof DBRef)
+            return v;
+        const dollarKeys = Object.keys(v).filter(k => k.startsWith('$'));
+        let valid = true;
+        dollarKeys.forEach(k => {
+            if (['$ref', '$id', '$db'].indexOf(k) === -1)
+                valid = false;
+        });
+        if (valid)
+            return DBRef.fromExtendedJSON(v);
+    }
+    return value;
+}
+function serializeArray(array, options) {
+    return array.map((v, index) => {
+        options.seenObjects.push({ propertyName: `index ${index}`, obj: null });
+        try {
+            return serializeValue(v, options);
+        }
+        finally {
+            options.seenObjects.pop();
+        }
+    });
+}
+function getISOString(date) {
+    const isoStr = date.toISOString();
+    return date.getUTCMilliseconds() !== 0 ? isoStr : isoStr.slice(0, -5) + 'Z';
+}
+function serializeValue(value, options) {
+    if (value instanceof Map || isMap(value)) {
+        const obj = Object.create(null);
+        for (const [k, v] of value) {
+            if (typeof k !== 'string') {
+                throw new BSONError('Can only serialize maps with string keys');
+            }
+            obj[k] = v;
+        }
+        return serializeValue(obj, options);
+    }
+    if ((typeof value === 'object' || typeof value === 'function') && value !== null) {
+        const index = options.seenObjects.findIndex(entry => entry.obj === value);
+        if (index !== -1) {
+            const props = options.seenObjects.map(entry => entry.propertyName);
+            const leadingPart = props
+                .slice(0, index)
+                .map(prop => `${prop} -> `)
+                .join('');
+            const alreadySeen = props[index];
+            const circularPart = ' -> ' +
+                props
+                    .slice(index + 1, props.length - 1)
+                    .map(prop => `${prop} -> `)
+                    .join('');
+            const current = props[props.length - 1];
+            const leadingSpace = ' '.repeat(leadingPart.length + alreadySeen.length / 2);
+            const dashes = '-'.repeat(circularPart.length + (alreadySeen.length + current.length) / 2 - 1);
+            throw new BSONError('Converting circular structure to EJSON:\n' +
+                `    ${leadingPart}${alreadySeen}${circularPart}${current}\n` +
+                `    ${leadingSpace}\\${dashes}/`);
+        }
+        options.seenObjects[options.seenObjects.length - 1].obj = value;
+    }
+    if (Array.isArray(value))
+        return serializeArray(value, options);
+    if (value === undefined)
+        return null;
+    if (value instanceof Date || isDate(value)) {
+        const dateNum = value.getTime(), inRange = dateNum > -1 && dateNum < 253402318800000;
+        if (options.legacy) {
+            return options.relaxed && inRange
+                ? { $date: value.getTime() }
+                : { $date: getISOString(value) };
+        }
+        return options.relaxed && inRange
+            ? { $date: getISOString(value) }
+            : { $date: { $numberLong: value.getTime().toString() } };
+    }
+    if (typeof value === 'number' && (!options.relaxed || !isFinite(value))) {
+        if (Number.isInteger(value) && !Object.is(value, -0)) {
+            if (value >= BSON_INT32_MIN && value <= BSON_INT32_MAX) {
+                return { $numberInt: value.toString() };
+            }
+            if (value >= BSON_INT64_MIN && value <= BSON_INT64_MAX) {
+                return { $numberLong: value.toString() };
+            }
+        }
+        return { $numberDouble: Object.is(value, -0) ? '-0.0' : value.toString() };
+    }
+    if (typeof value === 'bigint') {
+        if (!options.relaxed) {
+            return { $numberLong: BigInt.asIntN(64, value).toString() };
+        }
+        return Number(BigInt.asIntN(64, value));
+    }
+    if (value instanceof RegExp || isRegExp(value)) {
+        let flags = value.flags;
+        if (flags === undefined) {
+            const match = value.toString().match(/[gimuy]*$/);
+            if (match) {
+                flags = match[0];
+            }
+        }
+        const rx = new BSONRegExp(value.source, flags);
+        return rx.toExtendedJSON(options);
+    }
+    if (value != null && typeof value === 'object')
+        return serializeDocument(value, options);
+    return value;
+}
+const BSON_TYPE_MAPPINGS = {
+    Binary: (o) => new Binary(o.value(), o.sub_type),
+    Code: (o) => new Code(o.code, o.scope),
+    DBRef: (o) => new DBRef(o.collection || o.namespace, o.oid, o.db, o.fields),
+    Decimal128: (o) => new Decimal128(o.bytes),
+    Double: (o) => new Double(o.value),
+    Int32: (o) => new Int32(o.value),
+    Long: (o) => Long.fromBits(o.low != null ? o.low : o.low_, o.low != null ? o.high : o.high_, o.low != null ? o.unsigned : o.unsigned_),
+    MaxKey: () => new MaxKey(),
+    MinKey: () => new MinKey(),
+    ObjectId: (o) => new ObjectId(o),
+    BSONRegExp: (o) => new BSONRegExp(o.pattern, o.options),
+    BSONSymbol: (o) => new BSONSymbol(o.value),
+    Timestamp: (o) => Timestamp.fromBits(o.low, o.high)
+};
+function serializeDocument(doc, options) {
+    if (doc == null || typeof doc !== 'object')
+        throw new BSONError('not an object instance');
+    const bsontype = doc._bsontype;
+    if (typeof bsontype === 'undefined') {
+        const _doc = {};
+        for (const name of Object.keys(doc)) {
+            options.seenObjects.push({ propertyName: name, obj: null });
+            try {
+                const value = serializeValue(doc[name], options);
+                if (name === '__proto__') {
+                    Object.defineProperty(_doc, name, {
+                        value,
+                        writable: true,
+                        enumerable: true,
+                        configurable: true
+                    });
+                }
+                else {
+                    _doc[name] = value;
+                }
+            }
+            finally {
+                options.seenObjects.pop();
+            }
+        }
+        return _doc;
+    }
+    else if (doc != null &&
+        typeof doc === 'object' &&
+        typeof doc._bsontype === 'string' &&
+        doc[BSON_VERSION_SYMBOL] !== BSON_MAJOR_VERSION) {
+        throw new BSONVersionError();
+    }
+    else if (isBSONType(doc)) {
+        let outDoc = doc;
+        if (typeof outDoc.toExtendedJSON !== 'function') {
+            const mapper = BSON_TYPE_MAPPINGS[doc._bsontype];
+            if (!mapper) {
+                throw new BSONError('Unrecognized or invalid _bsontype: ' + doc._bsontype);
+            }
+            outDoc = mapper(outDoc);
+        }
+        if (bsontype === 'Code' && outDoc.scope) {
+            outDoc = new Code(outDoc.code, serializeValue(outDoc.scope, options));
+        }
+        else if (bsontype === 'DBRef' && outDoc.oid) {
+            outDoc = new DBRef(serializeValue(outDoc.collection, options), serializeValue(outDoc.oid, options), serializeValue(outDoc.db, options), serializeValue(outDoc.fields, options));
+        }
+        return outDoc.toExtendedJSON(options);
+    }
+    else {
+        throw new BSONError('_bsontype must be a string, but was: ' + typeof bsontype);
+    }
+}
+function parse(text, options) {
+    const ejsonOptions = {
+        useBigInt64: options?.useBigInt64 ?? false,
+        relaxed: options?.relaxed ?? true,
+        legacy: options?.legacy ?? false
+    };
+    return JSON.parse(text, (key, value) => {
+        if (key.indexOf('\x00') !== -1) {
+            throw new BSONError(`BSON Document field names cannot contain null bytes, found: ${JSON.stringify(key)}`);
+        }
+        return deserializeValue(value, ejsonOptions);
+    });
+}
+function stringify(value, replacer, space, options) {
+    if (space != null && typeof space === 'object') {
+        options = space;
+        space = 0;
+    }
+    if (replacer != null && typeof replacer === 'object' && !Array.isArray(replacer)) {
+        options = replacer;
+        replacer = undefined;
+        space = 0;
+    }
+    const serializeOptions = Object.assign({ relaxed: true, legacy: false }, options, {
+        seenObjects: [{ propertyName: '(root)', obj: null }]
+    });
+    const doc = serializeValue(value, serializeOptions);
+    return JSON.stringify(doc, replacer, space);
+}
+function EJSONserialize(value, options) {
+    options = options || {};
+    return JSON.parse(stringify(value, options));
+}
+function EJSONdeserialize(ejson, options) {
+    options = options || {};
+    return parse(JSON.stringify(ejson), options);
+}
+const EJSON = Object.create(null);
+EJSON.parse = parse;
+EJSON.stringify = stringify;
+EJSON.serialize = EJSONserialize;
+EJSON.deserialize = EJSONdeserialize;
+Object.freeze(EJSON);
+
+function getSize(source, offset) {
+    try {
+        return NumberUtils.getNonnegativeInt32LE(source, offset);
+    }
+    catch (cause) {
+        throw new BSONOffsetError('BSON size cannot be negative', offset, { cause });
+    }
+}
+function findNull(bytes, offset) {
+    let nullTerminatorOffset = offset;
+    for (; bytes[nullTerminatorOffset] !== 0x00; nullTerminatorOffset++)
+        ;
+    if (nullTerminatorOffset === bytes.length - 1) {
+        throw new BSONOffsetError('Null terminator not found', offset);
+    }
+    return nullTerminatorOffset;
+}
+function parseToElements(bytes, startOffset = 0) {
+    startOffset ??= 0;
+    if (bytes.length < 5) {
+        throw new BSONOffsetError(`Input must be at least 5 bytes, got ${bytes.length} bytes`, startOffset);
+    }
+    const documentSize = getSize(bytes, startOffset);
+    if (documentSize > bytes.length - startOffset) {
+        throw new BSONOffsetError(`Parsed documentSize (${documentSize} bytes) does not match input length (${bytes.length} bytes)`, startOffset);
+    }
+    if (bytes[startOffset + documentSize - 1] !== 0x00) {
+        throw new BSONOffsetError('BSON documents must end in 0x00', startOffset + documentSize);
+    }
+    const elements = [];
+    let offset = startOffset + 4;
+    while (offset <= documentSize + startOffset) {
+        const type = bytes[offset];
+        offset += 1;
+        if (type === 0) {
+            if (offset - startOffset !== documentSize) {
+                throw new BSONOffsetError(`Invalid 0x00 type byte`, offset);
+            }
+            break;
+        }
+        const nameOffset = offset;
+        const nameLength = findNull(bytes, offset) - nameOffset;
+        offset += nameLength + 1;
+        let length;
+        if (type === 1 ||
+            type === 18 ||
+            type === 9 ||
+            type === 17) {
+            length = 8;
+        }
+        else if (type === 16) {
+            length = 4;
+        }
+        else if (type === 7) {
+            length = 12;
+        }
+        else if (type === 19) {
+            length = 16;
+        }
+        else if (type === 8) {
+            length = 1;
+        }
+        else if (type === 10 ||
+            type === 6 ||
+            type === 127 ||
+            type === 255) {
+            length = 0;
+        }
+        else if (type === 11) {
+            length = findNull(bytes, findNull(bytes, offset) + 1) + 1 - offset;
+        }
+        else if (type === 3 ||
+            type === 4 ||
+            type === 15) {
+            length = getSize(bytes, offset);
+        }
+        else if (type === 2 ||
+            type === 5 ||
+            type === 12 ||
+            type === 13 ||
+            type === 14) {
+            length = getSize(bytes, offset) + 4;
+            if (type === 5) {
+                length += 1;
+            }
+            if (type === 12) {
+                length += 12;
+            }
+        }
+        else {
+            throw new BSONOffsetError(`Invalid 0x${type.toString(16).padStart(2, '0')} type byte`, offset);
+        }
+        if (length > documentSize) {
+            throw new BSONOffsetError('value reports length larger than document', offset);
+        }
+        elements.push([type, nameOffset, nameLength, offset, length]);
+        offset += length;
+    }
+    return elements;
+}
+
+const onDemand = Object.create(null);
+onDemand.parseToElements = parseToElements;
+onDemand.ByteUtils = ByteUtils;
+onDemand.NumberUtils = NumberUtils;
+Object.freeze(onDemand);
+
+const MAXSIZE = 1024 * 1024 * 17;
+let buffer = ByteUtils.allocate(MAXSIZE);
+function setInternalBufferSize(size) {
+    if (buffer.length < size) {
+        buffer = ByteUtils.allocate(size);
+    }
+}
+function serialize(object, options = {}) {
+    const checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false;
+    const serializeFunctions = typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false;
+    const ignoreUndefined = typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true;
+    const minInternalBufferSize = typeof options.minInternalBufferSize === 'number' ? options.minInternalBufferSize : MAXSIZE;
+    if (buffer.length < minInternalBufferSize) {
+        buffer = ByteUtils.allocate(minInternalBufferSize);
+    }
+    const serializationIndex = serializeInto(buffer, object, checkKeys, 0, 0, serializeFunctions, ignoreUndefined, null);
+    const finishedBuffer = ByteUtils.allocateUnsafe(serializationIndex);
+    finishedBuffer.set(buffer.subarray(0, serializationIndex), 0);
+    return finishedBuffer;
+}
+function serializeWithBufferAndIndex(object, finalBuffer, options = {}) {
+    const checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false;
+    const serializeFunctions = typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false;
+    const ignoreUndefined = typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true;
+    const startIndex = typeof options.index === 'number' ? options.index : 0;
+    const serializationIndex = serializeInto(buffer, object, checkKeys, 0, 0, serializeFunctions, ignoreUndefined, null);
+    finalBuffer.set(buffer.subarray(0, serializationIndex), startIndex);
+    return startIndex + serializationIndex - 1;
+}
+function deserialize(buffer, options = {}) {
+    return internalDeserialize(ByteUtils.toLocalBufferType(buffer), options);
+}
+function calculateObjectSize(object, options = {}) {
+    options = options || {};
+    const serializeFunctions = typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false;
+    const ignoreUndefined = typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true;
+    return internalCalculateObjectSize(object, serializeFunctions, ignoreUndefined);
+}
+function deserializeStream(data, startIndex, numberOfDocuments, documents, docStartIndex, options) {
+    const internalOptions = Object.assign({ allowObjectSmallerThanBufferSize: true, index: 0 }, options);
+    const bufferData = ByteUtils.toLocalBufferType(data);
+    let index = startIndex;
+    for (let i = 0; i < numberOfDocuments; i++) {
+        const size = NumberUtils.getInt32LE(bufferData, index);
+        internalOptions.index = index;
+        documents[docStartIndex + i] = internalDeserialize(bufferData, internalOptions);
+        index = index + size;
+    }
+    return index;
+}
+
+var bson = /*#__PURE__*/Object.freeze({
+    __proto__: null,
+    BSONError: BSONError,
+    BSONOffsetError: BSONOffsetError,
+    BSONRegExp: BSONRegExp,
+    BSONRuntimeError: BSONRuntimeError,
+    BSONSymbol: BSONSymbol,
+    BSONType: BSONType,
+    BSONValue: BSONValue,
+    BSONVersionError: BSONVersionError,
+    Binary: Binary,
+    Code: Code,
+    DBRef: DBRef,
+    Decimal128: Decimal128,
+    Double: Double,
+    EJSON: EJSON,
+    Int32: Int32,
+    Long: Long,
+    MaxKey: MaxKey,
+    MinKey: MinKey,
+    ObjectId: ObjectId,
+    Timestamp: Timestamp,
+    UUID: UUID,
+    calculateObjectSize: calculateObjectSize,
+    deserialize: deserialize,
+    deserializeStream: deserializeStream,
+    onDemand: onDemand,
+    serialize: serialize,
+    serializeWithBufferAndIndex: serializeWithBufferAndIndex,
+    setInternalBufferSize: setInternalBufferSize
+});
+
+exports.BSON = bson;
+exports.BSONError = BSONError;
+exports.BSONOffsetError = BSONOffsetError;
+exports.BSONRegExp = BSONRegExp;
+exports.BSONRuntimeError = BSONRuntimeError;
+exports.BSONSymbol = BSONSymbol;
+exports.BSONType = BSONType;
+exports.BSONValue = BSONValue;
+exports.BSONVersionError = BSONVersionError;
+exports.Binary = Binary;
+exports.Code = Code;
+exports.DBRef = DBRef;
+exports.Decimal128 = Decimal128;
+exports.Double = Double;
+exports.EJSON = EJSON;
+exports.Int32 = Int32;
+exports.Long = Long;
+exports.MaxKey = MaxKey;
+exports.MinKey = MinKey;
+exports.ObjectId = ObjectId;
+exports.Timestamp = Timestamp;
+exports.UUID = UUID;
+exports.calculateObjectSize = calculateObjectSize;
+exports.deserialize = deserialize;
+exports.deserializeStream = deserializeStream;
+exports.onDemand = onDemand;
+exports.serialize = serialize;
+exports.serializeWithBufferAndIndex = serializeWithBufferAndIndex;
+exports.setInternalBufferSize = setInternalBufferSize;
+//# sourceMappingURL=bson.cjs.map
diff --git a/backend/node_modules/bson/lib/bson.cjs.map b/backend/node_modules/bson/lib/bson.cjs.map
new file mode 100644
index 0000000..0336251
--- /dev/null
+++ b/backend/node_modules/bson/lib/bson.cjs.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/bson/lib/bson.mjs b/backend/node_modules/bson/lib/bson.mjs
new file mode 100644
index 0000000..edd7524
--- /dev/null
+++ b/backend/node_modules/bson/lib/bson.mjs
@@ -0,0 +1,4563 @@
+const TypedArrayPrototypeGetSymbolToStringTag = (() => {
+    const g = Object.getOwnPropertyDescriptor(Object.getPrototypeOf(Uint8Array.prototype), Symbol.toStringTag).get;
+    return (value) => g.call(value);
+})();
+function isUint8Array(value) {
+    return TypedArrayPrototypeGetSymbolToStringTag(value) === 'Uint8Array';
+}
+function isAnyArrayBuffer(value) {
+    return (typeof value === 'object' &&
+        value != null &&
+        Symbol.toStringTag in value &&
+        (value[Symbol.toStringTag] === 'ArrayBuffer' ||
+            value[Symbol.toStringTag] === 'SharedArrayBuffer'));
+}
+function isRegExp(regexp) {
+    return regexp instanceof RegExp || Object.prototype.toString.call(regexp) === '[object RegExp]';
+}
+function isMap(value) {
+    return (typeof value === 'object' &&
+        value != null &&
+        Symbol.toStringTag in value &&
+        value[Symbol.toStringTag] === 'Map');
+}
+function isDate(date) {
+    return date instanceof Date || Object.prototype.toString.call(date) === '[object Date]';
+}
+function defaultInspect(x, _options) {
+    return JSON.stringify(x, (k, v) => {
+        if (typeof v === 'bigint') {
+            return { $numberLong: `${v}` };
+        }
+        else if (isMap(v)) {
+            return Object.fromEntries(v);
+        }
+        return v;
+    });
+}
+function getStylizeFunction(options) {
+    const stylizeExists = options != null &&
+        typeof options === 'object' &&
+        'stylize' in options &&
+        typeof options.stylize === 'function';
+    if (stylizeExists) {
+        return options.stylize;
+    }
+}
+
+const BSON_MAJOR_VERSION = 6;
+const BSON_VERSION_SYMBOL = Symbol.for('@@mdb.bson.version');
+const BSON_INT32_MAX = 0x7fffffff;
+const BSON_INT32_MIN = -0x80000000;
+const BSON_INT64_MAX = Math.pow(2, 63) - 1;
+const BSON_INT64_MIN = -Math.pow(2, 63);
+const JS_INT_MAX = Math.pow(2, 53);
+const JS_INT_MIN = -Math.pow(2, 53);
+const BSON_DATA_NUMBER = 1;
+const BSON_DATA_STRING = 2;
+const BSON_DATA_OBJECT = 3;
+const BSON_DATA_ARRAY = 4;
+const BSON_DATA_BINARY = 5;
+const BSON_DATA_UNDEFINED = 6;
+const BSON_DATA_OID = 7;
+const BSON_DATA_BOOLEAN = 8;
+const BSON_DATA_DATE = 9;
+const BSON_DATA_NULL = 10;
+const BSON_DATA_REGEXP = 11;
+const BSON_DATA_DBPOINTER = 12;
+const BSON_DATA_CODE = 13;
+const BSON_DATA_SYMBOL = 14;
+const BSON_DATA_CODE_W_SCOPE = 15;
+const BSON_DATA_INT = 16;
+const BSON_DATA_TIMESTAMP = 17;
+const BSON_DATA_LONG = 18;
+const BSON_DATA_DECIMAL128 = 19;
+const BSON_DATA_MIN_KEY = 0xff;
+const BSON_DATA_MAX_KEY = 0x7f;
+const BSON_BINARY_SUBTYPE_DEFAULT = 0;
+const BSON_BINARY_SUBTYPE_UUID_NEW = 4;
+const BSONType = Object.freeze({
+    double: 1,
+    string: 2,
+    object: 3,
+    array: 4,
+    binData: 5,
+    undefined: 6,
+    objectId: 7,
+    bool: 8,
+    date: 9,
+    null: 10,
+    regex: 11,
+    dbPointer: 12,
+    javascript: 13,
+    symbol: 14,
+    javascriptWithScope: 15,
+    int: 16,
+    timestamp: 17,
+    long: 18,
+    decimal: 19,
+    minKey: -1,
+    maxKey: 127
+});
+
+class BSONError extends Error {
+    get bsonError() {
+        return true;
+    }
+    get name() {
+        return 'BSONError';
+    }
+    constructor(message, options) {
+        super(message, options);
+    }
+    static isBSONError(value) {
+        return (value != null &&
+            typeof value === 'object' &&
+            'bsonError' in value &&
+            value.bsonError === true &&
+            'name' in value &&
+            'message' in value &&
+            'stack' in value);
+    }
+}
+class BSONVersionError extends BSONError {
+    get name() {
+        return 'BSONVersionError';
+    }
+    constructor() {
+        super(`Unsupported BSON version, bson types must be from bson ${BSON_MAJOR_VERSION}.x.x`);
+    }
+}
+class BSONRuntimeError extends BSONError {
+    get name() {
+        return 'BSONRuntimeError';
+    }
+    constructor(message) {
+        super(message);
+    }
+}
+class BSONOffsetError extends BSONError {
+    get name() {
+        return 'BSONOffsetError';
+    }
+    constructor(message, offset, options) {
+        super(`${message}. offset: ${offset}`, options);
+        this.offset = offset;
+    }
+}
+
+let TextDecoderFatal;
+let TextDecoderNonFatal;
+function parseUtf8(buffer, start, end, fatal) {
+    if (fatal) {
+        TextDecoderFatal ??= new TextDecoder('utf8', { fatal: true });
+        try {
+            return TextDecoderFatal.decode(buffer.subarray(start, end));
+        }
+        catch (cause) {
+            throw new BSONError('Invalid UTF-8 string in BSON document', { cause });
+        }
+    }
+    TextDecoderNonFatal ??= new TextDecoder('utf8', { fatal: false });
+    return TextDecoderNonFatal.decode(buffer.subarray(start, end));
+}
+
+function tryReadBasicLatin(uint8array, start, end) {
+    if (uint8array.length === 0) {
+        return '';
+    }
+    const stringByteLength = end - start;
+    if (stringByteLength === 0) {
+        return '';
+    }
+    if (stringByteLength > 20) {
+        return null;
+    }
+    if (stringByteLength === 1 && uint8array[start] < 128) {
+        return String.fromCharCode(uint8array[start]);
+    }
+    if (stringByteLength === 2 && uint8array[start] < 128 && uint8array[start + 1] < 128) {
+        return String.fromCharCode(uint8array[start]) + String.fromCharCode(uint8array[start + 1]);
+    }
+    if (stringByteLength === 3 &&
+        uint8array[start] < 128 &&
+        uint8array[start + 1] < 128 &&
+        uint8array[start + 2] < 128) {
+        return (String.fromCharCode(uint8array[start]) +
+            String.fromCharCode(uint8array[start + 1]) +
+            String.fromCharCode(uint8array[start + 2]));
+    }
+    const latinBytes = [];
+    for (let i = start; i < end; i++) {
+        const byte = uint8array[i];
+        if (byte > 127) {
+            return null;
+        }
+        latinBytes.push(byte);
+    }
+    return String.fromCharCode(...latinBytes);
+}
+function tryWriteBasicLatin(destination, source, offset) {
+    if (source.length === 0)
+        return 0;
+    if (source.length > 25)
+        return null;
+    if (destination.length - offset < source.length)
+        return null;
+    for (let charOffset = 0, destinationOffset = offset; charOffset < source.length; charOffset++, destinationOffset++) {
+        const char = source.charCodeAt(charOffset);
+        if (char > 127)
+            return null;
+        destination[destinationOffset] = char;
+    }
+    return source.length;
+}
+
+function nodejsMathRandomBytes(byteLength) {
+    return nodeJsByteUtils.fromNumberArray(Array.from({ length: byteLength }, () => Math.floor(Math.random() * 256)));
+}
+const nodejsRandomBytes = await (async () => {
+    try {
+        return (await import('crypto')).randomBytes;
+    }
+    catch {
+        return nodejsMathRandomBytes;
+    }
+})();
+const nodeJsByteUtils = {
+    toLocalBufferType(potentialBuffer) {
+        if (Buffer.isBuffer(potentialBuffer)) {
+            return potentialBuffer;
+        }
+        if (ArrayBuffer.isView(potentialBuffer)) {
+            return Buffer.from(potentialBuffer.buffer, potentialBuffer.byteOffset, potentialBuffer.byteLength);
+        }
+        const stringTag = potentialBuffer?.[Symbol.toStringTag] ?? Object.prototype.toString.call(potentialBuffer);
+        if (stringTag === 'ArrayBuffer' ||
+            stringTag === 'SharedArrayBuffer' ||
+            stringTag === '[object ArrayBuffer]' ||
+            stringTag === '[object SharedArrayBuffer]') {
+            return Buffer.from(potentialBuffer);
+        }
+        throw new BSONError(`Cannot create Buffer from the passed potentialBuffer.`);
+    },
+    allocate(size) {
+        return Buffer.alloc(size);
+    },
+    allocateUnsafe(size) {
+        return Buffer.allocUnsafe(size);
+    },
+    equals(a, b) {
+        return nodeJsByteUtils.toLocalBufferType(a).equals(b);
+    },
+    fromNumberArray(array) {
+        return Buffer.from(array);
+    },
+    fromBase64(base64) {
+        return Buffer.from(base64, 'base64');
+    },
+    toBase64(buffer) {
+        return nodeJsByteUtils.toLocalBufferType(buffer).toString('base64');
+    },
+    fromISO88591(codePoints) {
+        return Buffer.from(codePoints, 'binary');
+    },
+    toISO88591(buffer) {
+        return nodeJsByteUtils.toLocalBufferType(buffer).toString('binary');
+    },
+    fromHex(hex) {
+        return Buffer.from(hex, 'hex');
+    },
+    toHex(buffer) {
+        return nodeJsByteUtils.toLocalBufferType(buffer).toString('hex');
+    },
+    toUTF8(buffer, start, end, fatal) {
+        const basicLatin = end - start <= 20 ? tryReadBasicLatin(buffer, start, end) : null;
+        if (basicLatin != null) {
+            return basicLatin;
+        }
+        const string = nodeJsByteUtils.toLocalBufferType(buffer).toString('utf8', start, end);
+        if (fatal) {
+            for (let i = 0; i < string.length; i++) {
+                if (string.charCodeAt(i) === 0xfffd) {
+                    parseUtf8(buffer, start, end, true);
+                    break;
+                }
+            }
+        }
+        return string;
+    },
+    utf8ByteLength(input) {
+        return Buffer.byteLength(input, 'utf8');
+    },
+    encodeUTF8Into(buffer, source, byteOffset) {
+        const latinBytesWritten = tryWriteBasicLatin(buffer, source, byteOffset);
+        if (latinBytesWritten != null) {
+            return latinBytesWritten;
+        }
+        return nodeJsByteUtils.toLocalBufferType(buffer).write(source, byteOffset, undefined, 'utf8');
+    },
+    randomBytes: nodejsRandomBytes,
+    swap32(buffer) {
+        return nodeJsByteUtils.toLocalBufferType(buffer).swap32();
+    }
+};
+
+function isReactNative() {
+    const { navigator } = globalThis;
+    return typeof navigator === 'object' && navigator.product === 'ReactNative';
+}
+function webMathRandomBytes(byteLength) {
+    if (byteLength < 0) {
+        throw new RangeError(`The argument 'byteLength' is invalid. Received ${byteLength}`);
+    }
+    return webByteUtils.fromNumberArray(Array.from({ length: byteLength }, () => Math.floor(Math.random() * 256)));
+}
+const webRandomBytes = (() => {
+    const { crypto } = globalThis;
+    if (crypto != null && typeof crypto.getRandomValues === 'function') {
+        return (byteLength) => {
+            return crypto.getRandomValues(webByteUtils.allocate(byteLength));
+        };
+    }
+    else {
+        if (isReactNative()) {
+            const { console } = globalThis;
+            console?.warn?.('BSON: For React Native please polyfill crypto.getRandomValues, e.g. using: https://www.npmjs.com/package/react-native-get-random-values.');
+        }
+        return webMathRandomBytes;
+    }
+})();
+const HEX_DIGIT = /(\d|[a-f])/i;
+const webByteUtils = {
+    toLocalBufferType(potentialUint8array) {
+        const stringTag = potentialUint8array?.[Symbol.toStringTag] ??
+            Object.prototype.toString.call(potentialUint8array);
+        if (stringTag === 'Uint8Array') {
+            return potentialUint8array;
+        }
+        if (ArrayBuffer.isView(potentialUint8array)) {
+            return new Uint8Array(potentialUint8array.buffer.slice(potentialUint8array.byteOffset, potentialUint8array.byteOffset + potentialUint8array.byteLength));
+        }
+        if (stringTag === 'ArrayBuffer' ||
+            stringTag === 'SharedArrayBuffer' ||
+            stringTag === '[object ArrayBuffer]' ||
+            stringTag === '[object SharedArrayBuffer]') {
+            return new Uint8Array(potentialUint8array);
+        }
+        throw new BSONError(`Cannot make a Uint8Array from passed potentialBuffer.`);
+    },
+    allocate(size) {
+        if (typeof size !== 'number') {
+            throw new TypeError(`The "size" argument must be of type number. Received ${String(size)}`);
+        }
+        return new Uint8Array(size);
+    },
+    allocateUnsafe(size) {
+        return webByteUtils.allocate(size);
+    },
+    equals(a, b) {
+        if (a.byteLength !== b.byteLength) {
+            return false;
+        }
+        for (let i = 0; i < a.byteLength; i++) {
+            if (a[i] !== b[i]) {
+                return false;
+            }
+        }
+        return true;
+    },
+    fromNumberArray(array) {
+        return Uint8Array.from(array);
+    },
+    fromBase64(base64) {
+        return Uint8Array.from(atob(base64), c => c.charCodeAt(0));
+    },
+    toBase64(uint8array) {
+        return btoa(webByteUtils.toISO88591(uint8array));
+    },
+    fromISO88591(codePoints) {
+        return Uint8Array.from(codePoints, c => c.charCodeAt(0) & 0xff);
+    },
+    toISO88591(uint8array) {
+        return Array.from(Uint16Array.from(uint8array), b => String.fromCharCode(b)).join('');
+    },
+    fromHex(hex) {
+        const evenLengthHex = hex.length % 2 === 0 ? hex : hex.slice(0, hex.length - 1);
+        const buffer = [];
+        for (let i = 0; i < evenLengthHex.length; i += 2) {
+            const firstDigit = evenLengthHex[i];
+            const secondDigit = evenLengthHex[i + 1];
+            if (!HEX_DIGIT.test(firstDigit)) {
+                break;
+            }
+            if (!HEX_DIGIT.test(secondDigit)) {
+                break;
+            }
+            const hexDigit = Number.parseInt(`${firstDigit}${secondDigit}`, 16);
+            buffer.push(hexDigit);
+        }
+        return Uint8Array.from(buffer);
+    },
+    toHex(uint8array) {
+        return Array.from(uint8array, byte => byte.toString(16).padStart(2, '0')).join('');
+    },
+    toUTF8(uint8array, start, end, fatal) {
+        const basicLatin = end - start <= 20 ? tryReadBasicLatin(uint8array, start, end) : null;
+        if (basicLatin != null) {
+            return basicLatin;
+        }
+        return parseUtf8(uint8array, start, end, fatal);
+    },
+    utf8ByteLength(input) {
+        return new TextEncoder().encode(input).byteLength;
+    },
+    encodeUTF8Into(uint8array, source, byteOffset) {
+        const bytes = new TextEncoder().encode(source);
+        uint8array.set(bytes, byteOffset);
+        return bytes.byteLength;
+    },
+    randomBytes: webRandomBytes,
+    swap32(buffer) {
+        if (buffer.length % 4 !== 0) {
+            throw new RangeError('Buffer size must be a multiple of 32-bits');
+        }
+        for (let i = 0; i < buffer.length; i += 4) {
+            const byte0 = buffer[i];
+            const byte1 = buffer[i + 1];
+            const byte2 = buffer[i + 2];
+            const byte3 = buffer[i + 3];
+            buffer[i] = byte3;
+            buffer[i + 1] = byte2;
+            buffer[i + 2] = byte1;
+            buffer[i + 3] = byte0;
+        }
+        return buffer;
+    }
+};
+
+const hasGlobalBuffer = typeof Buffer === 'function' && Buffer.prototype?._isBuffer !== true;
+const ByteUtils = hasGlobalBuffer ? nodeJsByteUtils : webByteUtils;
+
+class BSONValue {
+    get [BSON_VERSION_SYMBOL]() {
+        return BSON_MAJOR_VERSION;
+    }
+    [Symbol.for('nodejs.util.inspect.custom')](depth, options, inspect) {
+        return this.inspect(depth, options, inspect);
+    }
+}
+
+const FLOAT = new Float64Array(1);
+const FLOAT_BYTES = new Uint8Array(FLOAT.buffer, 0, 8);
+FLOAT[0] = -1;
+const isBigEndian = FLOAT_BYTES[7] === 0;
+const NumberUtils = {
+    isBigEndian,
+    getNonnegativeInt32LE(source, offset) {
+        if (source[offset + 3] > 127) {
+            throw new RangeError(`Size cannot be negative at offset: ${offset}`);
+        }
+        return (source[offset] |
+            (source[offset + 1] << 8) |
+            (source[offset + 2] << 16) |
+            (source[offset + 3] << 24));
+    },
+    getInt32LE(source, offset) {
+        return (source[offset] |
+            (source[offset + 1] << 8) |
+            (source[offset + 2] << 16) |
+            (source[offset + 3] << 24));
+    },
+    getUint32LE(source, offset) {
+        return (source[offset] +
+            source[offset + 1] * 256 +
+            source[offset + 2] * 65536 +
+            source[offset + 3] * 16777216);
+    },
+    getUint32BE(source, offset) {
+        return (source[offset + 3] +
+            source[offset + 2] * 256 +
+            source[offset + 1] * 65536 +
+            source[offset] * 16777216);
+    },
+    getBigInt64LE(source, offset) {
+        const lo = NumberUtils.getUint32LE(source, offset);
+        const hi = NumberUtils.getUint32LE(source, offset + 4);
+        return (BigInt(hi) << BigInt(32)) + BigInt(lo);
+    },
+    getFloat64LE: isBigEndian
+        ? (source, offset) => {
+            FLOAT_BYTES[7] = source[offset];
+            FLOAT_BYTES[6] = source[offset + 1];
+            FLOAT_BYTES[5] = source[offset + 2];
+            FLOAT_BYTES[4] = source[offset + 3];
+            FLOAT_BYTES[3] = source[offset + 4];
+            FLOAT_BYTES[2] = source[offset + 5];
+            FLOAT_BYTES[1] = source[offset + 6];
+            FLOAT_BYTES[0] = source[offset + 7];
+            return FLOAT[0];
+        }
+        : (source, offset) => {
+            FLOAT_BYTES[0] = source[offset];
+            FLOAT_BYTES[1] = source[offset + 1];
+            FLOAT_BYTES[2] = source[offset + 2];
+            FLOAT_BYTES[3] = source[offset + 3];
+            FLOAT_BYTES[4] = source[offset + 4];
+            FLOAT_BYTES[5] = source[offset + 5];
+            FLOAT_BYTES[6] = source[offset + 6];
+            FLOAT_BYTES[7] = source[offset + 7];
+            return FLOAT[0];
+        },
+    setInt32BE(destination, offset, value) {
+        destination[offset + 3] = value;
+        value >>>= 8;
+        destination[offset + 2] = value;
+        value >>>= 8;
+        destination[offset + 1] = value;
+        value >>>= 8;
+        destination[offset] = value;
+        return 4;
+    },
+    setInt32LE(destination, offset, value) {
+        destination[offset] = value;
+        value >>>= 8;
+        destination[offset + 1] = value;
+        value >>>= 8;
+        destination[offset + 2] = value;
+        value >>>= 8;
+        destination[offset + 3] = value;
+        return 4;
+    },
+    setBigInt64LE(destination, offset, value) {
+        const mask32bits = BigInt(0xffff_ffff);
+        let lo = Number(value & mask32bits);
+        destination[offset] = lo;
+        lo >>= 8;
+        destination[offset + 1] = lo;
+        lo >>= 8;
+        destination[offset + 2] = lo;
+        lo >>= 8;
+        destination[offset + 3] = lo;
+        let hi = Number((value >> BigInt(32)) & mask32bits);
+        destination[offset + 4] = hi;
+        hi >>= 8;
+        destination[offset + 5] = hi;
+        hi >>= 8;
+        destination[offset + 6] = hi;
+        hi >>= 8;
+        destination[offset + 7] = hi;
+        return 8;
+    },
+    setFloat64LE: isBigEndian
+        ? (destination, offset, value) => {
+            FLOAT[0] = value;
+            destination[offset] = FLOAT_BYTES[7];
+            destination[offset + 1] = FLOAT_BYTES[6];
+            destination[offset + 2] = FLOAT_BYTES[5];
+            destination[offset + 3] = FLOAT_BYTES[4];
+            destination[offset + 4] = FLOAT_BYTES[3];
+            destination[offset + 5] = FLOAT_BYTES[2];
+            destination[offset + 6] = FLOAT_BYTES[1];
+            destination[offset + 7] = FLOAT_BYTES[0];
+            return 8;
+        }
+        : (destination, offset, value) => {
+            FLOAT[0] = value;
+            destination[offset] = FLOAT_BYTES[0];
+            destination[offset + 1] = FLOAT_BYTES[1];
+            destination[offset + 2] = FLOAT_BYTES[2];
+            destination[offset + 3] = FLOAT_BYTES[3];
+            destination[offset + 4] = FLOAT_BYTES[4];
+            destination[offset + 5] = FLOAT_BYTES[5];
+            destination[offset + 6] = FLOAT_BYTES[6];
+            destination[offset + 7] = FLOAT_BYTES[7];
+            return 8;
+        }
+};
+
+class Binary extends BSONValue {
+    get _bsontype() {
+        return 'Binary';
+    }
+    constructor(buffer, subType) {
+        super();
+        if (!(buffer == null) &&
+            typeof buffer === 'string' &&
+            !ArrayBuffer.isView(buffer) &&
+            !isAnyArrayBuffer(buffer) &&
+            !Array.isArray(buffer)) {
+            throw new BSONError('Binary can only be constructed from Uint8Array or number[]');
+        }
+        this.sub_type = subType ?? Binary.BSON_BINARY_SUBTYPE_DEFAULT;
+        if (buffer == null) {
+            this.buffer = ByteUtils.allocate(Binary.BUFFER_SIZE);
+            this.position = 0;
+        }
+        else {
+            this.buffer = Array.isArray(buffer)
+                ? ByteUtils.fromNumberArray(buffer)
+                : ByteUtils.toLocalBufferType(buffer);
+            this.position = this.buffer.byteLength;
+        }
+    }
+    put(byteValue) {
+        if (typeof byteValue === 'string' && byteValue.length !== 1) {
+            throw new BSONError('only accepts single character String');
+        }
+        else if (typeof byteValue !== 'number' && byteValue.length !== 1)
+            throw new BSONError('only accepts single character Uint8Array or Array');
+        let decodedByte;
+        if (typeof byteValue === 'string') {
+            decodedByte = byteValue.charCodeAt(0);
+        }
+        else if (typeof byteValue === 'number') {
+            decodedByte = byteValue;
+        }
+        else {
+            decodedByte = byteValue[0];
+        }
+        if (decodedByte < 0 || decodedByte > 255) {
+            throw new BSONError('only accepts number in a valid unsigned byte range 0-255');
+        }
+        if (this.buffer.byteLength > this.position) {
+            this.buffer[this.position++] = decodedByte;
+        }
+        else {
+            const newSpace = ByteUtils.allocate(Binary.BUFFER_SIZE + this.buffer.length);
+            newSpace.set(this.buffer, 0);
+            this.buffer = newSpace;
+            this.buffer[this.position++] = decodedByte;
+        }
+    }
+    write(sequence, offset) {
+        offset = typeof offset === 'number' ? offset : this.position;
+        if (this.buffer.byteLength < offset + sequence.length) {
+            const newSpace = ByteUtils.allocate(this.buffer.byteLength + sequence.length);
+            newSpace.set(this.buffer, 0);
+            this.buffer = newSpace;
+        }
+        if (ArrayBuffer.isView(sequence)) {
+            this.buffer.set(ByteUtils.toLocalBufferType(sequence), offset);
+            this.position =
+                offset + sequence.byteLength > this.position ? offset + sequence.length : this.position;
+        }
+        else if (typeof sequence === 'string') {
+            throw new BSONError('input cannot be string');
+        }
+    }
+    read(position, length) {
+        length = length && length > 0 ? length : this.position;
+        const end = position + length;
+        return this.buffer.subarray(position, end > this.position ? this.position : end);
+    }
+    value() {
+        return this.buffer.length === this.position
+            ? this.buffer
+            : this.buffer.subarray(0, this.position);
+    }
+    length() {
+        return this.position;
+    }
+    toJSON() {
+        return ByteUtils.toBase64(this.buffer.subarray(0, this.position));
+    }
+    toString(encoding) {
+        if (encoding === 'hex')
+            return ByteUtils.toHex(this.buffer.subarray(0, this.position));
+        if (encoding === 'base64')
+            return ByteUtils.toBase64(this.buffer.subarray(0, this.position));
+        if (encoding === 'utf8' || encoding === 'utf-8')
+            return ByteUtils.toUTF8(this.buffer, 0, this.position, false);
+        return ByteUtils.toUTF8(this.buffer, 0, this.position, false);
+    }
+    toExtendedJSON(options) {
+        options = options || {};
+        if (this.sub_type === Binary.SUBTYPE_VECTOR) {
+            validateBinaryVector(this);
+        }
+        const base64String = ByteUtils.toBase64(this.buffer);
+        const subType = Number(this.sub_type).toString(16);
+        if (options.legacy) {
+            return {
+                $binary: base64String,
+                $type: subType.length === 1 ? '0' + subType : subType
+            };
+        }
+        return {
+            $binary: {
+                base64: base64String,
+                subType: subType.length === 1 ? '0' + subType : subType
+            }
+        };
+    }
+    toUUID() {
+        if (this.sub_type === Binary.SUBTYPE_UUID) {
+            return new UUID(this.buffer.subarray(0, this.position));
+        }
+        throw new BSONError(`Binary sub_type "${this.sub_type}" is not supported for converting to UUID. Only "${Binary.SUBTYPE_UUID}" is currently supported.`);
+    }
+    static createFromHexString(hex, subType) {
+        return new Binary(ByteUtils.fromHex(hex), subType);
+    }
+    static createFromBase64(base64, subType) {
+        return new Binary(ByteUtils.fromBase64(base64), subType);
+    }
+    static fromExtendedJSON(doc, options) {
+        options = options || {};
+        let data;
+        let type;
+        if ('$binary' in doc) {
+            if (options.legacy && typeof doc.$binary === 'string' && '$type' in doc) {
+                type = doc.$type ? parseInt(doc.$type, 16) : 0;
+                data = ByteUtils.fromBase64(doc.$binary);
+            }
+            else {
+                if (typeof doc.$binary !== 'string') {
+                    type = doc.$binary.subType ? parseInt(doc.$binary.subType, 16) : 0;
+                    data = ByteUtils.fromBase64(doc.$binary.base64);
+                }
+            }
+        }
+        else if ('$uuid' in doc) {
+            type = 4;
+            data = UUID.bytesFromString(doc.$uuid);
+        }
+        if (!data) {
+            throw new BSONError(`Unexpected Binary Extended JSON format ${JSON.stringify(doc)}`);
+        }
+        return type === BSON_BINARY_SUBTYPE_UUID_NEW ? new UUID(data) : new Binary(data, type);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        const base64 = ByteUtils.toBase64(this.buffer.subarray(0, this.position));
+        const base64Arg = inspect(base64, options);
+        const subTypeArg = inspect(this.sub_type, options);
+        return `Binary.createFromBase64(${base64Arg}, ${subTypeArg})`;
+    }
+    toInt8Array() {
+        if (this.sub_type !== Binary.SUBTYPE_VECTOR) {
+            throw new BSONError('Binary sub_type is not Vector');
+        }
+        if (this.buffer[0] !== Binary.VECTOR_TYPE.Int8) {
+            throw new BSONError('Binary datatype field is not Int8');
+        }
+        return new Int8Array(this.buffer.buffer.slice(this.buffer.byteOffset + 2, this.buffer.byteOffset + this.position));
+    }
+    toFloat32Array() {
+        if (this.sub_type !== Binary.SUBTYPE_VECTOR) {
+            throw new BSONError('Binary sub_type is not Vector');
+        }
+        if (this.buffer[0] !== Binary.VECTOR_TYPE.Float32) {
+            throw new BSONError('Binary datatype field is not Float32');
+        }
+        const floatBytes = new Uint8Array(this.buffer.buffer.slice(this.buffer.byteOffset + 2, this.buffer.byteOffset + this.position));
+        if (NumberUtils.isBigEndian)
+            ByteUtils.swap32(floatBytes);
+        return new Float32Array(floatBytes.buffer);
+    }
+    toPackedBits() {
+        if (this.sub_type !== Binary.SUBTYPE_VECTOR) {
+            throw new BSONError('Binary sub_type is not Vector');
+        }
+        if (this.buffer[0] !== Binary.VECTOR_TYPE.PackedBit) {
+            throw new BSONError('Binary datatype field is not packed bit');
+        }
+        return new Uint8Array(this.buffer.buffer.slice(this.buffer.byteOffset + 2, this.buffer.byteOffset + this.position));
+    }
+    toBits() {
+        if (this.sub_type !== Binary.SUBTYPE_VECTOR) {
+            throw new BSONError('Binary sub_type is not Vector');
+        }
+        if (this.buffer[0] !== Binary.VECTOR_TYPE.PackedBit) {
+            throw new BSONError('Binary datatype field is not packed bit');
+        }
+        const byteCount = this.length() - 2;
+        const bitCount = byteCount * 8 - this.buffer[1];
+        const bits = new Int8Array(bitCount);
+        for (let bitOffset = 0; bitOffset < bits.length; bitOffset++) {
+            const byteOffset = (bitOffset / 8) | 0;
+            const byte = this.buffer[byteOffset + 2];
+            const shift = 7 - (bitOffset % 8);
+            const bit = (byte >> shift) & 1;
+            bits[bitOffset] = bit;
+        }
+        return bits;
+    }
+    static fromInt8Array(array) {
+        const buffer = ByteUtils.allocate(array.byteLength + 2);
+        buffer[0] = Binary.VECTOR_TYPE.Int8;
+        buffer[1] = 0;
+        const intBytes = new Uint8Array(array.buffer, array.byteOffset, array.byteLength);
+        buffer.set(intBytes, 2);
+        return new this(buffer, this.SUBTYPE_VECTOR);
+    }
+    static fromFloat32Array(array) {
+        const binaryBytes = ByteUtils.allocate(array.byteLength + 2);
+        binaryBytes[0] = Binary.VECTOR_TYPE.Float32;
+        binaryBytes[1] = 0;
+        const floatBytes = new Uint8Array(array.buffer, array.byteOffset, array.byteLength);
+        binaryBytes.set(floatBytes, 2);
+        if (NumberUtils.isBigEndian)
+            ByteUtils.swap32(new Uint8Array(binaryBytes.buffer, 2));
+        return new this(binaryBytes, this.SUBTYPE_VECTOR);
+    }
+    static fromPackedBits(array, padding = 0) {
+        const buffer = ByteUtils.allocate(array.byteLength + 2);
+        buffer[0] = Binary.VECTOR_TYPE.PackedBit;
+        buffer[1] = padding;
+        buffer.set(array, 2);
+        return new this(buffer, this.SUBTYPE_VECTOR);
+    }
+    static fromBits(bits) {
+        const byteLength = (bits.length + 7) >>> 3;
+        const bytes = new Uint8Array(byteLength + 2);
+        bytes[0] = Binary.VECTOR_TYPE.PackedBit;
+        const remainder = bits.length % 8;
+        bytes[1] = remainder === 0 ? 0 : 8 - remainder;
+        for (let bitOffset = 0; bitOffset < bits.length; bitOffset++) {
+            const byteOffset = bitOffset >>> 3;
+            const bit = bits[bitOffset];
+            if (bit !== 0 && bit !== 1) {
+                throw new BSONError(`Invalid bit value at ${bitOffset}: must be 0 or 1, found ${bits[bitOffset]}`);
+            }
+            if (bit === 0)
+                continue;
+            const shift = 7 - (bitOffset % 8);
+            bytes[byteOffset + 2] |= bit << shift;
+        }
+        return new this(bytes, Binary.SUBTYPE_VECTOR);
+    }
+}
+Binary.BSON_BINARY_SUBTYPE_DEFAULT = 0;
+Binary.BUFFER_SIZE = 256;
+Binary.SUBTYPE_DEFAULT = 0;
+Binary.SUBTYPE_FUNCTION = 1;
+Binary.SUBTYPE_BYTE_ARRAY = 2;
+Binary.SUBTYPE_UUID_OLD = 3;
+Binary.SUBTYPE_UUID = 4;
+Binary.SUBTYPE_MD5 = 5;
+Binary.SUBTYPE_ENCRYPTED = 6;
+Binary.SUBTYPE_COLUMN = 7;
+Binary.SUBTYPE_SENSITIVE = 8;
+Binary.SUBTYPE_VECTOR = 9;
+Binary.SUBTYPE_USER_DEFINED = 128;
+Binary.VECTOR_TYPE = Object.freeze({
+    Int8: 0x03,
+    Float32: 0x27,
+    PackedBit: 0x10
+});
+function validateBinaryVector(vector) {
+    if (vector.sub_type !== Binary.SUBTYPE_VECTOR)
+        return;
+    const size = vector.position;
+    const datatype = vector.buffer[0];
+    const padding = vector.buffer[1];
+    if ((datatype === Binary.VECTOR_TYPE.Float32 || datatype === Binary.VECTOR_TYPE.Int8) &&
+        padding !== 0) {
+        throw new BSONError('Invalid Vector: padding must be zero for int8 and float32 vectors');
+    }
+    if (datatype === Binary.VECTOR_TYPE.PackedBit && padding !== 0 && size === 2) {
+        throw new BSONError('Invalid Vector: padding must be zero for packed bit vectors that are empty');
+    }
+    if (datatype === Binary.VECTOR_TYPE.PackedBit && padding > 7) {
+        throw new BSONError(`Invalid Vector: padding must be a value between 0 and 7. found: ${padding}`);
+    }
+}
+const UUID_BYTE_LENGTH = 16;
+const UUID_WITHOUT_DASHES = /^[0-9A-F]{32}$/i;
+const UUID_WITH_DASHES = /^[0-9A-F]{8}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{12}$/i;
+class UUID extends Binary {
+    constructor(input) {
+        let bytes;
+        if (input == null) {
+            bytes = UUID.generate();
+        }
+        else if (input instanceof UUID) {
+            bytes = ByteUtils.toLocalBufferType(new Uint8Array(input.buffer));
+        }
+        else if (ArrayBuffer.isView(input) && input.byteLength === UUID_BYTE_LENGTH) {
+            bytes = ByteUtils.toLocalBufferType(input);
+        }
+        else if (typeof input === 'string') {
+            bytes = UUID.bytesFromString(input);
+        }
+        else {
+            throw new BSONError('Argument passed in UUID constructor must be a UUID, a 16 byte Buffer or a 32/36 character hex string (dashes excluded/included, format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx).');
+        }
+        super(bytes, BSON_BINARY_SUBTYPE_UUID_NEW);
+    }
+    get id() {
+        return this.buffer;
+    }
+    set id(value) {
+        this.buffer = value;
+    }
+    toHexString(includeDashes = true) {
+        if (includeDashes) {
+            return [
+                ByteUtils.toHex(this.buffer.subarray(0, 4)),
+                ByteUtils.toHex(this.buffer.subarray(4, 6)),
+                ByteUtils.toHex(this.buffer.subarray(6, 8)),
+                ByteUtils.toHex(this.buffer.subarray(8, 10)),
+                ByteUtils.toHex(this.buffer.subarray(10, 16))
+            ].join('-');
+        }
+        return ByteUtils.toHex(this.buffer);
+    }
+    toString(encoding) {
+        if (encoding === 'hex')
+            return ByteUtils.toHex(this.id);
+        if (encoding === 'base64')
+            return ByteUtils.toBase64(this.id);
+        return this.toHexString();
+    }
+    toJSON() {
+        return this.toHexString();
+    }
+    equals(otherId) {
+        if (!otherId) {
+            return false;
+        }
+        if (otherId instanceof UUID) {
+            return ByteUtils.equals(otherId.id, this.id);
+        }
+        try {
+            return ByteUtils.equals(new UUID(otherId).id, this.id);
+        }
+        catch {
+            return false;
+        }
+    }
+    toBinary() {
+        return new Binary(this.id, Binary.SUBTYPE_UUID);
+    }
+    static generate() {
+        const bytes = ByteUtils.randomBytes(UUID_BYTE_LENGTH);
+        bytes[6] = (bytes[6] & 0x0f) | 0x40;
+        bytes[8] = (bytes[8] & 0x3f) | 0x80;
+        return bytes;
+    }
+    static isValid(input) {
+        if (!input) {
+            return false;
+        }
+        if (typeof input === 'string') {
+            return UUID.isValidUUIDString(input);
+        }
+        if (isUint8Array(input)) {
+            return input.byteLength === UUID_BYTE_LENGTH;
+        }
+        return (input._bsontype === 'Binary' &&
+            input.sub_type === this.SUBTYPE_UUID &&
+            input.buffer.byteLength === 16);
+    }
+    static createFromHexString(hexString) {
+        const buffer = UUID.bytesFromString(hexString);
+        return new UUID(buffer);
+    }
+    static createFromBase64(base64) {
+        return new UUID(ByteUtils.fromBase64(base64));
+    }
+    static bytesFromString(representation) {
+        if (!UUID.isValidUUIDString(representation)) {
+            throw new BSONError('UUID string representation must be 32 hex digits or canonical hyphenated representation');
+        }
+        return ByteUtils.fromHex(representation.replace(/-/g, ''));
+    }
+    static isValidUUIDString(representation) {
+        return UUID_WITHOUT_DASHES.test(representation) || UUID_WITH_DASHES.test(representation);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        return `new UUID(${inspect(this.toHexString(), options)})`;
+    }
+}
+
+class Code extends BSONValue {
+    get _bsontype() {
+        return 'Code';
+    }
+    constructor(code, scope) {
+        super();
+        this.code = code.toString();
+        this.scope = scope ?? null;
+    }
+    toJSON() {
+        if (this.scope != null) {
+            return { code: this.code, scope: this.scope };
+        }
+        return { code: this.code };
+    }
+    toExtendedJSON() {
+        if (this.scope) {
+            return { $code: this.code, $scope: this.scope };
+        }
+        return { $code: this.code };
+    }
+    static fromExtendedJSON(doc) {
+        return new Code(doc.$code, doc.$scope);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        let parametersString = inspect(this.code, options);
+        const multiLineFn = parametersString.includes('\n');
+        if (this.scope != null) {
+            parametersString += `,${multiLineFn ? '\n' : ' '}${inspect(this.scope, options)}`;
+        }
+        const endingNewline = multiLineFn && this.scope === null;
+        return `new Code(${multiLineFn ? '\n' : ''}${parametersString}${endingNewline ? '\n' : ''})`;
+    }
+}
+
+function isDBRefLike(value) {
+    return (value != null &&
+        typeof value === 'object' &&
+        '$id' in value &&
+        value.$id != null &&
+        '$ref' in value &&
+        typeof value.$ref === 'string' &&
+        (!('$db' in value) || ('$db' in value && typeof value.$db === 'string')));
+}
+class DBRef extends BSONValue {
+    get _bsontype() {
+        return 'DBRef';
+    }
+    constructor(collection, oid, db, fields) {
+        super();
+        const parts = collection.split('.');
+        if (parts.length === 2) {
+            db = parts.shift();
+            collection = parts.shift();
+        }
+        this.collection = collection;
+        this.oid = oid;
+        this.db = db;
+        this.fields = fields || {};
+    }
+    get namespace() {
+        return this.collection;
+    }
+    set namespace(value) {
+        this.collection = value;
+    }
+    toJSON() {
+        const o = Object.assign({
+            $ref: this.collection,
+            $id: this.oid
+        }, this.fields);
+        if (this.db != null)
+            o.$db = this.db;
+        return o;
+    }
+    toExtendedJSON(options) {
+        options = options || {};
+        let o = {
+            $ref: this.collection,
+            $id: this.oid
+        };
+        if (options.legacy) {
+            return o;
+        }
+        if (this.db)
+            o.$db = this.db;
+        o = Object.assign(o, this.fields);
+        return o;
+    }
+    static fromExtendedJSON(doc) {
+        const copy = Object.assign({}, doc);
+        delete copy.$ref;
+        delete copy.$id;
+        delete copy.$db;
+        return new DBRef(doc.$ref, doc.$id, doc.$db, copy);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        const args = [
+            inspect(this.namespace, options),
+            inspect(this.oid, options),
+            ...(this.db ? [inspect(this.db, options)] : []),
+            ...(Object.keys(this.fields).length > 0 ? [inspect(this.fields, options)] : [])
+        ];
+        args[1] = inspect === defaultInspect ? `new ObjectId(${args[1]})` : args[1];
+        return `new DBRef(${args.join(', ')})`;
+    }
+}
+
+function removeLeadingZerosAndExplicitPlus(str) {
+    if (str === '') {
+        return str;
+    }
+    let startIndex = 0;
+    const isNegative = str[startIndex] === '-';
+    const isExplicitlyPositive = str[startIndex] === '+';
+    if (isExplicitlyPositive || isNegative) {
+        startIndex += 1;
+    }
+    let foundInsignificantZero = false;
+    for (; startIndex < str.length && str[startIndex] === '0'; ++startIndex) {
+        foundInsignificantZero = true;
+    }
+    if (!foundInsignificantZero) {
+        return isExplicitlyPositive ? str.slice(1) : str;
+    }
+    return `${isNegative ? '-' : ''}${str.length === startIndex ? '0' : str.slice(startIndex)}`;
+}
+function validateStringCharacters(str, radix) {
+    radix = radix ?? 10;
+    const validCharacters = '0123456789abcdefghijklmnopqrstuvwxyz'.slice(0, radix);
+    const regex = new RegExp(`[^-+${validCharacters}]`, 'i');
+    return regex.test(str) ? false : str;
+}
+
+let wasm = undefined;
+try {
+    wasm = new WebAssembly.Instance(new WebAssembly.Module(new Uint8Array([0, 97, 115, 109, 1, 0, 0, 0, 1, 13, 2, 96, 0, 1, 127, 96, 4, 127, 127, 127, 127, 1, 127, 3, 7, 6, 0, 1, 1, 1, 1, 1, 6, 6, 1, 127, 1, 65, 0, 11, 7, 50, 6, 3, 109, 117, 108, 0, 1, 5, 100, 105, 118, 95, 115, 0, 2, 5, 100, 105, 118, 95, 117, 0, 3, 5, 114, 101, 109, 95, 115, 0, 4, 5, 114, 101, 109, 95, 117, 0, 5, 8, 103, 101, 116, 95, 104, 105, 103, 104, 0, 0, 10, 191, 1, 6, 4, 0, 35, 0, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 126, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 127, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 128, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 129, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 130, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11])), {}).exports;
+}
+catch {
+}
+const TWO_PWR_16_DBL = 1 << 16;
+const TWO_PWR_24_DBL = 1 << 24;
+const TWO_PWR_32_DBL = TWO_PWR_16_DBL * TWO_PWR_16_DBL;
+const TWO_PWR_64_DBL = TWO_PWR_32_DBL * TWO_PWR_32_DBL;
+const TWO_PWR_63_DBL = TWO_PWR_64_DBL / 2;
+const INT_CACHE = {};
+const UINT_CACHE = {};
+const MAX_INT64_STRING_LENGTH = 20;
+const DECIMAL_REG_EX = /^(\+?0|(\+|-)?[1-9][0-9]*)$/;
+class Long extends BSONValue {
+    get _bsontype() {
+        return 'Long';
+    }
+    get __isLong__() {
+        return true;
+    }
+    constructor(lowOrValue = 0, highOrUnsigned, unsigned) {
+        super();
+        const unsignedBool = typeof highOrUnsigned === 'boolean' ? highOrUnsigned : Boolean(unsigned);
+        const high = typeof highOrUnsigned === 'number' ? highOrUnsigned : 0;
+        const res = typeof lowOrValue === 'string'
+            ? Long.fromString(lowOrValue, unsignedBool)
+            : typeof lowOrValue === 'bigint'
+                ? Long.fromBigInt(lowOrValue, unsignedBool)
+                : { low: lowOrValue | 0, high: high | 0, unsigned: unsignedBool };
+        this.low = res.low;
+        this.high = res.high;
+        this.unsigned = res.unsigned;
+    }
+    static fromBits(lowBits, highBits, unsigned) {
+        return new Long(lowBits, highBits, unsigned);
+    }
+    static fromInt(value, unsigned) {
+        let obj, cachedObj, cache;
+        if (unsigned) {
+            value >>>= 0;
+            if ((cache = 0 <= value && value < 256)) {
+                cachedObj = UINT_CACHE[value];
+                if (cachedObj)
+                    return cachedObj;
+            }
+            obj = Long.fromBits(value, (value | 0) < 0 ? -1 : 0, true);
+            if (cache)
+                UINT_CACHE[value] = obj;
+            return obj;
+        }
+        else {
+            value |= 0;
+            if ((cache = -128 <= value && value < 128)) {
+                cachedObj = INT_CACHE[value];
+                if (cachedObj)
+                    return cachedObj;
+            }
+            obj = Long.fromBits(value, value < 0 ? -1 : 0, false);
+            if (cache)
+                INT_CACHE[value] = obj;
+            return obj;
+        }
+    }
+    static fromNumber(value, unsigned) {
+        if (isNaN(value))
+            return unsigned ? Long.UZERO : Long.ZERO;
+        if (unsigned) {
+            if (value < 0)
+                return Long.UZERO;
+            if (value >= TWO_PWR_64_DBL)
+                return Long.MAX_UNSIGNED_VALUE;
+        }
+        else {
+            if (value <= -TWO_PWR_63_DBL)
+                return Long.MIN_VALUE;
+            if (value + 1 >= TWO_PWR_63_DBL)
+                return Long.MAX_VALUE;
+        }
+        if (value < 0)
+            return Long.fromNumber(-value, unsigned).neg();
+        return Long.fromBits(value % TWO_PWR_32_DBL | 0, (value / TWO_PWR_32_DBL) | 0, unsigned);
+    }
+    static fromBigInt(value, unsigned) {
+        const FROM_BIGINT_BIT_MASK = BigInt(0xffffffff);
+        const FROM_BIGINT_BIT_SHIFT = BigInt(32);
+        return new Long(Number(value & FROM_BIGINT_BIT_MASK), Number((value >> FROM_BIGINT_BIT_SHIFT) & FROM_BIGINT_BIT_MASK), unsigned);
+    }
+    static _fromString(str, unsigned, radix) {
+        if (str.length === 0)
+            throw new BSONError('empty string');
+        if (radix < 2 || 36 < radix)
+            throw new BSONError('radix');
+        let p;
+        if ((p = str.indexOf('-')) > 0)
+            throw new BSONError('interior hyphen');
+        else if (p === 0) {
+            return Long._fromString(str.substring(1), unsigned, radix).neg();
+        }
+        const radixToPower = Long.fromNumber(Math.pow(radix, 8));
+        let result = Long.ZERO;
+        for (let i = 0; i < str.length; i += 8) {
+            const size = Math.min(8, str.length - i), value = parseInt(str.substring(i, i + size), radix);
+            if (size < 8) {
+                const power = Long.fromNumber(Math.pow(radix, size));
+                result = result.mul(power).add(Long.fromNumber(value));
+            }
+            else {
+                result = result.mul(radixToPower);
+                result = result.add(Long.fromNumber(value));
+            }
+        }
+        result.unsigned = unsigned;
+        return result;
+    }
+    static fromStringStrict(str, unsignedOrRadix, radix) {
+        let unsigned = false;
+        if (typeof unsignedOrRadix === 'number') {
+            (radix = unsignedOrRadix), (unsignedOrRadix = false);
+        }
+        else {
+            unsigned = !!unsignedOrRadix;
+        }
+        radix ??= 10;
+        if (str.trim() !== str) {
+            throw new BSONError(`Input: '${str}' contains leading and/or trailing whitespace`);
+        }
+        if (!validateStringCharacters(str, radix)) {
+            throw new BSONError(`Input: '${str}' contains invalid characters for radix: ${radix}`);
+        }
+        const cleanedStr = removeLeadingZerosAndExplicitPlus(str);
+        const result = Long._fromString(cleanedStr, unsigned, radix);
+        if (result.toString(radix).toLowerCase() !== cleanedStr.toLowerCase()) {
+            throw new BSONError(`Input: ${str} is not representable as ${result.unsigned ? 'an unsigned' : 'a signed'} 64-bit Long ${radix != null ? `with radix: ${radix}` : ''}`);
+        }
+        return result;
+    }
+    static fromString(str, unsignedOrRadix, radix) {
+        let unsigned = false;
+        if (typeof unsignedOrRadix === 'number') {
+            (radix = unsignedOrRadix), (unsignedOrRadix = false);
+        }
+        else {
+            unsigned = !!unsignedOrRadix;
+        }
+        radix ??= 10;
+        if (str === 'NaN' && radix < 24) {
+            return Long.ZERO;
+        }
+        else if ((str === 'Infinity' || str === '+Infinity' || str === '-Infinity') && radix < 35) {
+            return Long.ZERO;
+        }
+        return Long._fromString(str, unsigned, radix);
+    }
+    static fromBytes(bytes, unsigned, le) {
+        return le ? Long.fromBytesLE(bytes, unsigned) : Long.fromBytesBE(bytes, unsigned);
+    }
+    static fromBytesLE(bytes, unsigned) {
+        return new Long(bytes[0] | (bytes[1] << 8) | (bytes[2] << 16) | (bytes[3] << 24), bytes[4] | (bytes[5] << 8) | (bytes[6] << 16) | (bytes[7] << 24), unsigned);
+    }
+    static fromBytesBE(bytes, unsigned) {
+        return new Long((bytes[4] << 24) | (bytes[5] << 16) | (bytes[6] << 8) | bytes[7], (bytes[0] << 24) | (bytes[1] << 16) | (bytes[2] << 8) | bytes[3], unsigned);
+    }
+    static isLong(value) {
+        return (value != null &&
+            typeof value === 'object' &&
+            '__isLong__' in value &&
+            value.__isLong__ === true);
+    }
+    static fromValue(val, unsigned) {
+        if (typeof val === 'number')
+            return Long.fromNumber(val, unsigned);
+        if (typeof val === 'string')
+            return Long.fromString(val, unsigned);
+        return Long.fromBits(val.low, val.high, typeof unsigned === 'boolean' ? unsigned : val.unsigned);
+    }
+    add(addend) {
+        if (!Long.isLong(addend))
+            addend = Long.fromValue(addend);
+        const a48 = this.high >>> 16;
+        const a32 = this.high & 0xffff;
+        const a16 = this.low >>> 16;
+        const a00 = this.low & 0xffff;
+        const b48 = addend.high >>> 16;
+        const b32 = addend.high & 0xffff;
+        const b16 = addend.low >>> 16;
+        const b00 = addend.low & 0xffff;
+        let c48 = 0, c32 = 0, c16 = 0, c00 = 0;
+        c00 += a00 + b00;
+        c16 += c00 >>> 16;
+        c00 &= 0xffff;
+        c16 += a16 + b16;
+        c32 += c16 >>> 16;
+        c16 &= 0xffff;
+        c32 += a32 + b32;
+        c48 += c32 >>> 16;
+        c32 &= 0xffff;
+        c48 += a48 + b48;
+        c48 &= 0xffff;
+        return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned);
+    }
+    and(other) {
+        if (!Long.isLong(other))
+            other = Long.fromValue(other);
+        return Long.fromBits(this.low & other.low, this.high & other.high, this.unsigned);
+    }
+    compare(other) {
+        if (!Long.isLong(other))
+            other = Long.fromValue(other);
+        if (this.eq(other))
+            return 0;
+        const thisNeg = this.isNegative(), otherNeg = other.isNegative();
+        if (thisNeg && !otherNeg)
+            return -1;
+        if (!thisNeg && otherNeg)
+            return 1;
+        if (!this.unsigned)
+            return this.sub(other).isNegative() ? -1 : 1;
+        return other.high >>> 0 > this.high >>> 0 ||
+            (other.high === this.high && other.low >>> 0 > this.low >>> 0)
+            ? -1
+            : 1;
+    }
+    comp(other) {
+        return this.compare(other);
+    }
+    divide(divisor) {
+        if (!Long.isLong(divisor))
+            divisor = Long.fromValue(divisor);
+        if (divisor.isZero())
+            throw new BSONError('division by zero');
+        if (wasm) {
+            if (!this.unsigned &&
+                this.high === -0x80000000 &&
+                divisor.low === -1 &&
+                divisor.high === -1) {
+                return this;
+            }
+            const low = (this.unsigned ? wasm.div_u : wasm.div_s)(this.low, this.high, divisor.low, divisor.high);
+            return Long.fromBits(low, wasm.get_high(), this.unsigned);
+        }
+        if (this.isZero())
+            return this.unsigned ? Long.UZERO : Long.ZERO;
+        let approx, rem, res;
+        if (!this.unsigned) {
+            if (this.eq(Long.MIN_VALUE)) {
+                if (divisor.eq(Long.ONE) || divisor.eq(Long.NEG_ONE))
+                    return Long.MIN_VALUE;
+                else if (divisor.eq(Long.MIN_VALUE))
+                    return Long.ONE;
+                else {
+                    const halfThis = this.shr(1);
+                    approx = halfThis.div(divisor).shl(1);
+                    if (approx.eq(Long.ZERO)) {
+                        return divisor.isNegative() ? Long.ONE : Long.NEG_ONE;
+                    }
+                    else {
+                        rem = this.sub(divisor.mul(approx));
+                        res = approx.add(rem.div(divisor));
+                        return res;
+                    }
+                }
+            }
+            else if (divisor.eq(Long.MIN_VALUE))
+                return this.unsigned ? Long.UZERO : Long.ZERO;
+            if (this.isNegative()) {
+                if (divisor.isNegative())
+                    return this.neg().div(divisor.neg());
+                return this.neg().div(divisor).neg();
+            }
+            else if (divisor.isNegative())
+                return this.div(divisor.neg()).neg();
+            res = Long.ZERO;
+        }
+        else {
+            if (!divisor.unsigned)
+                divisor = divisor.toUnsigned();
+            if (divisor.gt(this))
+                return Long.UZERO;
+            if (divisor.gt(this.shru(1)))
+                return Long.UONE;
+            res = Long.UZERO;
+        }
+        rem = this;
+        while (rem.gte(divisor)) {
+            approx = Math.max(1, Math.floor(rem.toNumber() / divisor.toNumber()));
+            const log2 = Math.ceil(Math.log(approx) / Math.LN2);
+            const delta = log2 <= 48 ? 1 : Math.pow(2, log2 - 48);
+            let approxRes = Long.fromNumber(approx);
+            let approxRem = approxRes.mul(divisor);
+            while (approxRem.isNegative() || approxRem.gt(rem)) {
+                approx -= delta;
+                approxRes = Long.fromNumber(approx, this.unsigned);
+                approxRem = approxRes.mul(divisor);
+            }
+            if (approxRes.isZero())
+                approxRes = Long.ONE;
+            res = res.add(approxRes);
+            rem = rem.sub(approxRem);
+        }
+        return res;
+    }
+    div(divisor) {
+        return this.divide(divisor);
+    }
+    equals(other) {
+        if (!Long.isLong(other))
+            other = Long.fromValue(other);
+        if (this.unsigned !== other.unsigned && this.high >>> 31 === 1 && other.high >>> 31 === 1)
+            return false;
+        return this.high === other.high && this.low === other.low;
+    }
+    eq(other) {
+        return this.equals(other);
+    }
+    getHighBits() {
+        return this.high;
+    }
+    getHighBitsUnsigned() {
+        return this.high >>> 0;
+    }
+    getLowBits() {
+        return this.low;
+    }
+    getLowBitsUnsigned() {
+        return this.low >>> 0;
+    }
+    getNumBitsAbs() {
+        if (this.isNegative()) {
+            return this.eq(Long.MIN_VALUE) ? 64 : this.neg().getNumBitsAbs();
+        }
+        const val = this.high !== 0 ? this.high : this.low;
+        let bit;
+        for (bit = 31; bit > 0; bit--)
+            if ((val & (1 << bit)) !== 0)
+                break;
+        return this.high !== 0 ? bit + 33 : bit + 1;
+    }
+    greaterThan(other) {
+        return this.comp(other) > 0;
+    }
+    gt(other) {
+        return this.greaterThan(other);
+    }
+    greaterThanOrEqual(other) {
+        return this.comp(other) >= 0;
+    }
+    gte(other) {
+        return this.greaterThanOrEqual(other);
+    }
+    ge(other) {
+        return this.greaterThanOrEqual(other);
+    }
+    isEven() {
+        return (this.low & 1) === 0;
+    }
+    isNegative() {
+        return !this.unsigned && this.high < 0;
+    }
+    isOdd() {
+        return (this.low & 1) === 1;
+    }
+    isPositive() {
+        return this.unsigned || this.high >= 0;
+    }
+    isZero() {
+        return this.high === 0 && this.low === 0;
+    }
+    lessThan(other) {
+        return this.comp(other) < 0;
+    }
+    lt(other) {
+        return this.lessThan(other);
+    }
+    lessThanOrEqual(other) {
+        return this.comp(other) <= 0;
+    }
+    lte(other) {
+        return this.lessThanOrEqual(other);
+    }
+    modulo(divisor) {
+        if (!Long.isLong(divisor))
+            divisor = Long.fromValue(divisor);
+        if (wasm) {
+            const low = (this.unsigned ? wasm.rem_u : wasm.rem_s)(this.low, this.high, divisor.low, divisor.high);
+            return Long.fromBits(low, wasm.get_high(), this.unsigned);
+        }
+        return this.sub(this.div(divisor).mul(divisor));
+    }
+    mod(divisor) {
+        return this.modulo(divisor);
+    }
+    rem(divisor) {
+        return this.modulo(divisor);
+    }
+    multiply(multiplier) {
+        if (this.isZero())
+            return Long.ZERO;
+        if (!Long.isLong(multiplier))
+            multiplier = Long.fromValue(multiplier);
+        if (wasm) {
+            const low = wasm.mul(this.low, this.high, multiplier.low, multiplier.high);
+            return Long.fromBits(low, wasm.get_high(), this.unsigned);
+        }
+        if (multiplier.isZero())
+            return Long.ZERO;
+        if (this.eq(Long.MIN_VALUE))
+            return multiplier.isOdd() ? Long.MIN_VALUE : Long.ZERO;
+        if (multiplier.eq(Long.MIN_VALUE))
+            return this.isOdd() ? Long.MIN_VALUE : Long.ZERO;
+        if (this.isNegative()) {
+            if (multiplier.isNegative())
+                return this.neg().mul(multiplier.neg());
+            else
+                return this.neg().mul(multiplier).neg();
+        }
+        else if (multiplier.isNegative())
+            return this.mul(multiplier.neg()).neg();
+        if (this.lt(Long.TWO_PWR_24) && multiplier.lt(Long.TWO_PWR_24))
+            return Long.fromNumber(this.toNumber() * multiplier.toNumber(), this.unsigned);
+        const a48 = this.high >>> 16;
+        const a32 = this.high & 0xffff;
+        const a16 = this.low >>> 16;
+        const a00 = this.low & 0xffff;
+        const b48 = multiplier.high >>> 16;
+        const b32 = multiplier.high & 0xffff;
+        const b16 = multiplier.low >>> 16;
+        const b00 = multiplier.low & 0xffff;
+        let c48 = 0, c32 = 0, c16 = 0, c00 = 0;
+        c00 += a00 * b00;
+        c16 += c00 >>> 16;
+        c00 &= 0xffff;
+        c16 += a16 * b00;
+        c32 += c16 >>> 16;
+        c16 &= 0xffff;
+        c16 += a00 * b16;
+        c32 += c16 >>> 16;
+        c16 &= 0xffff;
+        c32 += a32 * b00;
+        c48 += c32 >>> 16;
+        c32 &= 0xffff;
+        c32 += a16 * b16;
+        c48 += c32 >>> 16;
+        c32 &= 0xffff;
+        c32 += a00 * b32;
+        c48 += c32 >>> 16;
+        c32 &= 0xffff;
+        c48 += a48 * b00 + a32 * b16 + a16 * b32 + a00 * b48;
+        c48 &= 0xffff;
+        return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned);
+    }
+    mul(multiplier) {
+        return this.multiply(multiplier);
+    }
+    negate() {
+        if (!this.unsigned && this.eq(Long.MIN_VALUE))
+            return Long.MIN_VALUE;
+        return this.not().add(Long.ONE);
+    }
+    neg() {
+        return this.negate();
+    }
+    not() {
+        return Long.fromBits(~this.low, ~this.high, this.unsigned);
+    }
+    notEquals(other) {
+        return !this.equals(other);
+    }
+    neq(other) {
+        return this.notEquals(other);
+    }
+    ne(other) {
+        return this.notEquals(other);
+    }
+    or(other) {
+        if (!Long.isLong(other))
+            other = Long.fromValue(other);
+        return Long.fromBits(this.low | other.low, this.high | other.high, this.unsigned);
+    }
+    shiftLeft(numBits) {
+        if (Long.isLong(numBits))
+            numBits = numBits.toInt();
+        if ((numBits &= 63) === 0)
+            return this;
+        else if (numBits < 32)
+            return Long.fromBits(this.low << numBits, (this.high << numBits) | (this.low >>> (32 - numBits)), this.unsigned);
+        else
+            return Long.fromBits(0, this.low << (numBits - 32), this.unsigned);
+    }
+    shl(numBits) {
+        return this.shiftLeft(numBits);
+    }
+    shiftRight(numBits) {
+        if (Long.isLong(numBits))
+            numBits = numBits.toInt();
+        if ((numBits &= 63) === 0)
+            return this;
+        else if (numBits < 32)
+            return Long.fromBits((this.low >>> numBits) | (this.high << (32 - numBits)), this.high >> numBits, this.unsigned);
+        else
+            return Long.fromBits(this.high >> (numBits - 32), this.high >= 0 ? 0 : -1, this.unsigned);
+    }
+    shr(numBits) {
+        return this.shiftRight(numBits);
+    }
+    shiftRightUnsigned(numBits) {
+        if (Long.isLong(numBits))
+            numBits = numBits.toInt();
+        numBits &= 63;
+        if (numBits === 0)
+            return this;
+        else {
+            const high = this.high;
+            if (numBits < 32) {
+                const low = this.low;
+                return Long.fromBits((low >>> numBits) | (high << (32 - numBits)), high >>> numBits, this.unsigned);
+            }
+            else if (numBits === 32)
+                return Long.fromBits(high, 0, this.unsigned);
+            else
+                return Long.fromBits(high >>> (numBits - 32), 0, this.unsigned);
+        }
+    }
+    shr_u(numBits) {
+        return this.shiftRightUnsigned(numBits);
+    }
+    shru(numBits) {
+        return this.shiftRightUnsigned(numBits);
+    }
+    subtract(subtrahend) {
+        if (!Long.isLong(subtrahend))
+            subtrahend = Long.fromValue(subtrahend);
+        return this.add(subtrahend.neg());
+    }
+    sub(subtrahend) {
+        return this.subtract(subtrahend);
+    }
+    toInt() {
+        return this.unsigned ? this.low >>> 0 : this.low;
+    }
+    toNumber() {
+        if (this.unsigned)
+            return (this.high >>> 0) * TWO_PWR_32_DBL + (this.low >>> 0);
+        return this.high * TWO_PWR_32_DBL + (this.low >>> 0);
+    }
+    toBigInt() {
+        return BigInt(this.toString());
+    }
+    toBytes(le) {
+        return le ? this.toBytesLE() : this.toBytesBE();
+    }
+    toBytesLE() {
+        const hi = this.high, lo = this.low;
+        return [
+            lo & 0xff,
+            (lo >>> 8) & 0xff,
+            (lo >>> 16) & 0xff,
+            lo >>> 24,
+            hi & 0xff,
+            (hi >>> 8) & 0xff,
+            (hi >>> 16) & 0xff,
+            hi >>> 24
+        ];
+    }
+    toBytesBE() {
+        const hi = this.high, lo = this.low;
+        return [
+            hi >>> 24,
+            (hi >>> 16) & 0xff,
+            (hi >>> 8) & 0xff,
+            hi & 0xff,
+            lo >>> 24,
+            (lo >>> 16) & 0xff,
+            (lo >>> 8) & 0xff,
+            lo & 0xff
+        ];
+    }
+    toSigned() {
+        if (!this.unsigned)
+            return this;
+        return Long.fromBits(this.low, this.high, false);
+    }
+    toString(radix) {
+        radix = radix || 10;
+        if (radix < 2 || 36 < radix)
+            throw new BSONError('radix');
+        if (this.isZero())
+            return '0';
+        if (this.isNegative()) {
+            if (this.eq(Long.MIN_VALUE)) {
+                const radixLong = Long.fromNumber(radix), div = this.div(radixLong), rem1 = div.mul(radixLong).sub(this);
+                return div.toString(radix) + rem1.toInt().toString(radix);
+            }
+            else
+                return '-' + this.neg().toString(radix);
+        }
+        const radixToPower = Long.fromNumber(Math.pow(radix, 6), this.unsigned);
+        let rem = this;
+        let result = '';
+        while (true) {
+            const remDiv = rem.div(radixToPower);
+            const intval = rem.sub(remDiv.mul(radixToPower)).toInt() >>> 0;
+            let digits = intval.toString(radix);
+            rem = remDiv;
+            if (rem.isZero()) {
+                return digits + result;
+            }
+            else {
+                while (digits.length < 6)
+                    digits = '0' + digits;
+                result = '' + digits + result;
+            }
+        }
+    }
+    toUnsigned() {
+        if (this.unsigned)
+            return this;
+        return Long.fromBits(this.low, this.high, true);
+    }
+    xor(other) {
+        if (!Long.isLong(other))
+            other = Long.fromValue(other);
+        return Long.fromBits(this.low ^ other.low, this.high ^ other.high, this.unsigned);
+    }
+    eqz() {
+        return this.isZero();
+    }
+    le(other) {
+        return this.lessThanOrEqual(other);
+    }
+    toExtendedJSON(options) {
+        if (options && options.relaxed)
+            return this.toNumber();
+        return { $numberLong: this.toString() };
+    }
+    static fromExtendedJSON(doc, options) {
+        const { useBigInt64 = false, relaxed = true } = { ...options };
+        if (doc.$numberLong.length > MAX_INT64_STRING_LENGTH) {
+            throw new BSONError('$numberLong string is too long');
+        }
+        if (!DECIMAL_REG_EX.test(doc.$numberLong)) {
+            throw new BSONError(`$numberLong string "${doc.$numberLong}" is in an invalid format`);
+        }
+        if (useBigInt64) {
+            const bigIntResult = BigInt(doc.$numberLong);
+            return BigInt.asIntN(64, bigIntResult);
+        }
+        const longResult = Long.fromString(doc.$numberLong);
+        if (relaxed) {
+            return longResult.toNumber();
+        }
+        return longResult;
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        const longVal = inspect(this.toString(), options);
+        const unsignedVal = this.unsigned ? `, ${inspect(this.unsigned, options)}` : '';
+        return `new Long(${longVal}${unsignedVal})`;
+    }
+}
+Long.TWO_PWR_24 = Long.fromInt(TWO_PWR_24_DBL);
+Long.MAX_UNSIGNED_VALUE = Long.fromBits(0xffffffff | 0, 0xffffffff | 0, true);
+Long.ZERO = Long.fromInt(0);
+Long.UZERO = Long.fromInt(0, true);
+Long.ONE = Long.fromInt(1);
+Long.UONE = Long.fromInt(1, true);
+Long.NEG_ONE = Long.fromInt(-1);
+Long.MAX_VALUE = Long.fromBits(0xffffffff | 0, 0x7fffffff | 0, false);
+Long.MIN_VALUE = Long.fromBits(0, 0x80000000 | 0, false);
+
+const PARSE_STRING_REGEXP = /^(\+|-)?(\d+|(\d*\.\d*))?(E|e)?([-+])?(\d+)?$/;
+const PARSE_INF_REGEXP = /^(\+|-)?(Infinity|inf)$/i;
+const PARSE_NAN_REGEXP = /^(\+|-)?NaN$/i;
+const EXPONENT_MAX = 6111;
+const EXPONENT_MIN = -6176;
+const EXPONENT_BIAS = 6176;
+const MAX_DIGITS = 34;
+const NAN_BUFFER = ByteUtils.fromNumberArray([
+    0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+].reverse());
+const INF_NEGATIVE_BUFFER = ByteUtils.fromNumberArray([
+    0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+].reverse());
+const INF_POSITIVE_BUFFER = ByteUtils.fromNumberArray([
+    0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+].reverse());
+const EXPONENT_REGEX = /^([-+])?(\d+)?$/;
+const COMBINATION_MASK = 0x1f;
+const EXPONENT_MASK = 0x3fff;
+const COMBINATION_INFINITY = 30;
+const COMBINATION_NAN = 31;
+function isDigit(value) {
+    return !isNaN(parseInt(value, 10));
+}
+function divideu128(value) {
+    const DIVISOR = Long.fromNumber(1000 * 1000 * 1000);
+    let _rem = Long.fromNumber(0);
+    if (!value.parts[0] && !value.parts[1] && !value.parts[2] && !value.parts[3]) {
+        return { quotient: value, rem: _rem };
+    }
+    for (let i = 0; i <= 3; i++) {
+        _rem = _rem.shiftLeft(32);
+        _rem = _rem.add(new Long(value.parts[i], 0));
+        value.parts[i] = _rem.div(DIVISOR).low;
+        _rem = _rem.modulo(DIVISOR);
+    }
+    return { quotient: value, rem: _rem };
+}
+function multiply64x2(left, right) {
+    if (!left && !right) {
+        return { high: Long.fromNumber(0), low: Long.fromNumber(0) };
+    }
+    const leftHigh = left.shiftRightUnsigned(32);
+    const leftLow = new Long(left.getLowBits(), 0);
+    const rightHigh = right.shiftRightUnsigned(32);
+    const rightLow = new Long(right.getLowBits(), 0);
+    let productHigh = leftHigh.multiply(rightHigh);
+    let productMid = leftHigh.multiply(rightLow);
+    const productMid2 = leftLow.multiply(rightHigh);
+    let productLow = leftLow.multiply(rightLow);
+    productHigh = productHigh.add(productMid.shiftRightUnsigned(32));
+    productMid = new Long(productMid.getLowBits(), 0)
+        .add(productMid2)
+        .add(productLow.shiftRightUnsigned(32));
+    productHigh = productHigh.add(productMid.shiftRightUnsigned(32));
+    productLow = productMid.shiftLeft(32).add(new Long(productLow.getLowBits(), 0));
+    return { high: productHigh, low: productLow };
+}
+function lessThan(left, right) {
+    const uhleft = left.high >>> 0;
+    const uhright = right.high >>> 0;
+    if (uhleft < uhright) {
+        return true;
+    }
+    else if (uhleft === uhright) {
+        const ulleft = left.low >>> 0;
+        const ulright = right.low >>> 0;
+        if (ulleft < ulright)
+            return true;
+    }
+    return false;
+}
+function invalidErr(string, message) {
+    throw new BSONError(`"${string}" is not a valid Decimal128 string - ${message}`);
+}
+class Decimal128 extends BSONValue {
+    get _bsontype() {
+        return 'Decimal128';
+    }
+    constructor(bytes) {
+        super();
+        if (typeof bytes === 'string') {
+            this.bytes = Decimal128.fromString(bytes).bytes;
+        }
+        else if (bytes instanceof Uint8Array || isUint8Array(bytes)) {
+            if (bytes.byteLength !== 16) {
+                throw new BSONError('Decimal128 must take a Buffer of 16 bytes');
+            }
+            this.bytes = bytes;
+        }
+        else {
+            throw new BSONError('Decimal128 must take a Buffer or string');
+        }
+    }
+    static fromString(representation) {
+        return Decimal128._fromString(representation, { allowRounding: false });
+    }
+    static fromStringWithRounding(representation) {
+        return Decimal128._fromString(representation, { allowRounding: true });
+    }
+    static _fromString(representation, options) {
+        let isNegative = false;
+        let sawSign = false;
+        let sawRadix = false;
+        let foundNonZero = false;
+        let significantDigits = 0;
+        let nDigitsRead = 0;
+        let nDigits = 0;
+        let radixPosition = 0;
+        let firstNonZero = 0;
+        const digits = [0];
+        let nDigitsStored = 0;
+        let digitsInsert = 0;
+        let lastDigit = 0;
+        let exponent = 0;
+        let significandHigh = new Long(0, 0);
+        let significandLow = new Long(0, 0);
+        let biasedExponent = 0;
+        let index = 0;
+        if (representation.length >= 7000) {
+            throw new BSONError('' + representation + ' not a valid Decimal128 string');
+        }
+        const stringMatch = representation.match(PARSE_STRING_REGEXP);
+        const infMatch = representation.match(PARSE_INF_REGEXP);
+        const nanMatch = representation.match(PARSE_NAN_REGEXP);
+        if ((!stringMatch && !infMatch && !nanMatch) || representation.length === 0) {
+            throw new BSONError('' + representation + ' not a valid Decimal128 string');
+        }
+        if (stringMatch) {
+            const unsignedNumber = stringMatch[2];
+            const e = stringMatch[4];
+            const expSign = stringMatch[5];
+            const expNumber = stringMatch[6];
+            if (e && expNumber === undefined)
+                invalidErr(representation, 'missing exponent power');
+            if (e && unsignedNumber === undefined)
+                invalidErr(representation, 'missing exponent base');
+            if (e === undefined && (expSign || expNumber)) {
+                invalidErr(representation, 'missing e before exponent');
+            }
+        }
+        if (representation[index] === '+' || representation[index] === '-') {
+            sawSign = true;
+            isNegative = representation[index++] === '-';
+        }
+        if (!isDigit(representation[index]) && representation[index] !== '.') {
+            if (representation[index] === 'i' || representation[index] === 'I') {
+                return new Decimal128(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER);
+            }
+            else if (representation[index] === 'N') {
+                return new Decimal128(NAN_BUFFER);
+            }
+        }
+        while (isDigit(representation[index]) || representation[index] === '.') {
+            if (representation[index] === '.') {
+                if (sawRadix)
+                    invalidErr(representation, 'contains multiple periods');
+                sawRadix = true;
+                index = index + 1;
+                continue;
+            }
+            if (nDigitsStored < MAX_DIGITS) {
+                if (representation[index] !== '0' || foundNonZero) {
+                    if (!foundNonZero) {
+                        firstNonZero = nDigitsRead;
+                    }
+                    foundNonZero = true;
+                    digits[digitsInsert++] = parseInt(representation[index], 10);
+                    nDigitsStored = nDigitsStored + 1;
+                }
+            }
+            if (foundNonZero)
+                nDigits = nDigits + 1;
+            if (sawRadix)
+                radixPosition = radixPosition + 1;
+            nDigitsRead = nDigitsRead + 1;
+            index = index + 1;
+        }
+        if (sawRadix && !nDigitsRead)
+            throw new BSONError('' + representation + ' not a valid Decimal128 string');
+        if (representation[index] === 'e' || representation[index] === 'E') {
+            const match = representation.substr(++index).match(EXPONENT_REGEX);
+            if (!match || !match[2])
+                return new Decimal128(NAN_BUFFER);
+            exponent = parseInt(match[0], 10);
+            index = index + match[0].length;
+        }
+        if (representation[index])
+            return new Decimal128(NAN_BUFFER);
+        if (!nDigitsStored) {
+            digits[0] = 0;
+            nDigits = 1;
+            nDigitsStored = 1;
+            significantDigits = 0;
+        }
+        else {
+            lastDigit = nDigitsStored - 1;
+            significantDigits = nDigits;
+            if (significantDigits !== 1) {
+                while (representation[firstNonZero + significantDigits - 1 + Number(sawSign) + Number(sawRadix)] === '0') {
+                    significantDigits = significantDigits - 1;
+                }
+            }
+        }
+        if (exponent <= radixPosition && radixPosition > exponent + (1 << 14)) {
+            exponent = EXPONENT_MIN;
+        }
+        else {
+            exponent = exponent - radixPosition;
+        }
+        while (exponent > EXPONENT_MAX) {
+            lastDigit = lastDigit + 1;
+            if (lastDigit >= MAX_DIGITS) {
+                if (significantDigits === 0) {
+                    exponent = EXPONENT_MAX;
+                    break;
+                }
+                invalidErr(representation, 'overflow');
+            }
+            exponent = exponent - 1;
+        }
+        if (options.allowRounding) {
+            while (exponent < EXPONENT_MIN || nDigitsStored < nDigits) {
+                if (lastDigit === 0 && significantDigits < nDigitsStored) {
+                    exponent = EXPONENT_MIN;
+                    significantDigits = 0;
+                    break;
+                }
+                if (nDigitsStored < nDigits) {
+                    nDigits = nDigits - 1;
+                }
+                else {
+                    lastDigit = lastDigit - 1;
+                }
+                if (exponent < EXPONENT_MAX) {
+                    exponent = exponent + 1;
+                }
+                else {
+                    const digitsString = digits.join('');
+                    if (digitsString.match(/^0+$/)) {
+                        exponent = EXPONENT_MAX;
+                        break;
+                    }
+                    invalidErr(representation, 'overflow');
+                }
+            }
+            if (lastDigit + 1 < significantDigits) {
+                let endOfString = nDigitsRead;
+                if (sawRadix) {
+                    firstNonZero = firstNonZero + 1;
+                    endOfString = endOfString + 1;
+                }
+                if (sawSign) {
+                    firstNonZero = firstNonZero + 1;
+                    endOfString = endOfString + 1;
+                }
+                const roundDigit = parseInt(representation[firstNonZero + lastDigit + 1], 10);
+                let roundBit = 0;
+                if (roundDigit >= 5) {
+                    roundBit = 1;
+                    if (roundDigit === 5) {
+                        roundBit = digits[lastDigit] % 2 === 1 ? 1 : 0;
+                        for (let i = firstNonZero + lastDigit + 2; i < endOfString; i++) {
+                            if (parseInt(representation[i], 10)) {
+                                roundBit = 1;
+                                break;
+                            }
+                        }
+                    }
+                }
+                if (roundBit) {
+                    let dIdx = lastDigit;
+                    for (; dIdx >= 0; dIdx--) {
+                        if (++digits[dIdx] > 9) {
+                            digits[dIdx] = 0;
+                            if (dIdx === 0) {
+                                if (exponent < EXPONENT_MAX) {
+                                    exponent = exponent + 1;
+                                    digits[dIdx] = 1;
+                                }
+                                else {
+                                    return new Decimal128(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER);
+                                }
+                            }
+                        }
+                        else {
+                            break;
+                        }
+                    }
+                }
+            }
+        }
+        else {
+            while (exponent < EXPONENT_MIN || nDigitsStored < nDigits) {
+                if (lastDigit === 0) {
+                    if (significantDigits === 0) {
+                        exponent = EXPONENT_MIN;
+                        break;
+                    }
+                    invalidErr(representation, 'exponent underflow');
+                }
+                if (nDigitsStored < nDigits) {
+                    if (representation[nDigits - 1 + Number(sawSign) + Number(sawRadix)] !== '0' &&
+                        significantDigits !== 0) {
+                        invalidErr(representation, 'inexact rounding');
+                    }
+                    nDigits = nDigits - 1;
+                }
+                else {
+                    if (digits[lastDigit] !== 0) {
+                        invalidErr(representation, 'inexact rounding');
+                    }
+                    lastDigit = lastDigit - 1;
+                }
+                if (exponent < EXPONENT_MAX) {
+                    exponent = exponent + 1;
+                }
+                else {
+                    invalidErr(representation, 'overflow');
+                }
+            }
+            if (lastDigit + 1 < significantDigits) {
+                if (sawRadix) {
+                    firstNonZero = firstNonZero + 1;
+                }
+                if (sawSign) {
+                    firstNonZero = firstNonZero + 1;
+                }
+                const roundDigit = parseInt(representation[firstNonZero + lastDigit + 1], 10);
+                if (roundDigit !== 0) {
+                    invalidErr(representation, 'inexact rounding');
+                }
+            }
+        }
+        significandHigh = Long.fromNumber(0);
+        significandLow = Long.fromNumber(0);
+        if (significantDigits === 0) {
+            significandHigh = Long.fromNumber(0);
+            significandLow = Long.fromNumber(0);
+        }
+        else if (lastDigit < 17) {
+            let dIdx = 0;
+            significandLow = Long.fromNumber(digits[dIdx++]);
+            significandHigh = new Long(0, 0);
+            for (; dIdx <= lastDigit; dIdx++) {
+                significandLow = significandLow.multiply(Long.fromNumber(10));
+                significandLow = significandLow.add(Long.fromNumber(digits[dIdx]));
+            }
+        }
+        else {
+            let dIdx = 0;
+            significandHigh = Long.fromNumber(digits[dIdx++]);
+            for (; dIdx <= lastDigit - 17; dIdx++) {
+                significandHigh = significandHigh.multiply(Long.fromNumber(10));
+                significandHigh = significandHigh.add(Long.fromNumber(digits[dIdx]));
+            }
+            significandLow = Long.fromNumber(digits[dIdx++]);
+            for (; dIdx <= lastDigit; dIdx++) {
+                significandLow = significandLow.multiply(Long.fromNumber(10));
+                significandLow = significandLow.add(Long.fromNumber(digits[dIdx]));
+            }
+        }
+        const significand = multiply64x2(significandHigh, Long.fromString('100000000000000000'));
+        significand.low = significand.low.add(significandLow);
+        if (lessThan(significand.low, significandLow)) {
+            significand.high = significand.high.add(Long.fromNumber(1));
+        }
+        biasedExponent = exponent + EXPONENT_BIAS;
+        const dec = { low: Long.fromNumber(0), high: Long.fromNumber(0) };
+        if (significand.high.shiftRightUnsigned(49).and(Long.fromNumber(1)).equals(Long.fromNumber(1))) {
+            dec.high = dec.high.or(Long.fromNumber(0x3).shiftLeft(61));
+            dec.high = dec.high.or(Long.fromNumber(biasedExponent).and(Long.fromNumber(0x3fff).shiftLeft(47)));
+            dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x7fffffffffff)));
+        }
+        else {
+            dec.high = dec.high.or(Long.fromNumber(biasedExponent & 0x3fff).shiftLeft(49));
+            dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x1ffffffffffff)));
+        }
+        dec.low = significand.low;
+        if (isNegative) {
+            dec.high = dec.high.or(Long.fromString('9223372036854775808'));
+        }
+        const buffer = ByteUtils.allocateUnsafe(16);
+        index = 0;
+        buffer[index++] = dec.low.low & 0xff;
+        buffer[index++] = (dec.low.low >> 8) & 0xff;
+        buffer[index++] = (dec.low.low >> 16) & 0xff;
+        buffer[index++] = (dec.low.low >> 24) & 0xff;
+        buffer[index++] = dec.low.high & 0xff;
+        buffer[index++] = (dec.low.high >> 8) & 0xff;
+        buffer[index++] = (dec.low.high >> 16) & 0xff;
+        buffer[index++] = (dec.low.high >> 24) & 0xff;
+        buffer[index++] = dec.high.low & 0xff;
+        buffer[index++] = (dec.high.low >> 8) & 0xff;
+        buffer[index++] = (dec.high.low >> 16) & 0xff;
+        buffer[index++] = (dec.high.low >> 24) & 0xff;
+        buffer[index++] = dec.high.high & 0xff;
+        buffer[index++] = (dec.high.high >> 8) & 0xff;
+        buffer[index++] = (dec.high.high >> 16) & 0xff;
+        buffer[index++] = (dec.high.high >> 24) & 0xff;
+        return new Decimal128(buffer);
+    }
+    toString() {
+        let biased_exponent;
+        let significand_digits = 0;
+        const significand = new Array(36);
+        for (let i = 0; i < significand.length; i++)
+            significand[i] = 0;
+        let index = 0;
+        let is_zero = false;
+        let significand_msb;
+        let significand128 = { parts: [0, 0, 0, 0] };
+        let j, k;
+        const string = [];
+        index = 0;
+        const buffer = this.bytes;
+        const low = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
+        const midl = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
+        const midh = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
+        const high = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
+        index = 0;
+        const dec = {
+            low: new Long(low, midl),
+            high: new Long(midh, high)
+        };
+        if (dec.high.lessThan(Long.ZERO)) {
+            string.push('-');
+        }
+        const combination = (high >> 26) & COMBINATION_MASK;
+        if (combination >> 3 === 3) {
+            if (combination === COMBINATION_INFINITY) {
+                return string.join('') + 'Infinity';
+            }
+            else if (combination === COMBINATION_NAN) {
+                return 'NaN';
+            }
+            else {
+                biased_exponent = (high >> 15) & EXPONENT_MASK;
+                significand_msb = 0x08 + ((high >> 14) & 0x01);
+            }
+        }
+        else {
+            significand_msb = (high >> 14) & 0x07;
+            biased_exponent = (high >> 17) & EXPONENT_MASK;
+        }
+        const exponent = biased_exponent - EXPONENT_BIAS;
+        significand128.parts[0] = (high & 0x3fff) + ((significand_msb & 0xf) << 14);
+        significand128.parts[1] = midh;
+        significand128.parts[2] = midl;
+        significand128.parts[3] = low;
+        if (significand128.parts[0] === 0 &&
+            significand128.parts[1] === 0 &&
+            significand128.parts[2] === 0 &&
+            significand128.parts[3] === 0) {
+            is_zero = true;
+        }
+        else {
+            for (k = 3; k >= 0; k--) {
+                let least_digits = 0;
+                const result = divideu128(significand128);
+                significand128 = result.quotient;
+                least_digits = result.rem.low;
+                if (!least_digits)
+                    continue;
+                for (j = 8; j >= 0; j--) {
+                    significand[k * 9 + j] = least_digits % 10;
+                    least_digits = Math.floor(least_digits / 10);
+                }
+            }
+        }
+        if (is_zero) {
+            significand_digits = 1;
+            significand[index] = 0;
+        }
+        else {
+            significand_digits = 36;
+            while (!significand[index]) {
+                significand_digits = significand_digits - 1;
+                index = index + 1;
+            }
+        }
+        const scientific_exponent = significand_digits - 1 + exponent;
+        if (scientific_exponent >= 34 || scientific_exponent <= -7 || exponent > 0) {
+            if (significand_digits > 34) {
+                string.push(`${0}`);
+                if (exponent > 0)
+                    string.push(`E+${exponent}`);
+                else if (exponent < 0)
+                    string.push(`E${exponent}`);
+                return string.join('');
+            }
+            string.push(`${significand[index++]}`);
+            significand_digits = significand_digits - 1;
+            if (significand_digits) {
+                string.push('.');
+            }
+            for (let i = 0; i < significand_digits; i++) {
+                string.push(`${significand[index++]}`);
+            }
+            string.push('E');
+            if (scientific_exponent > 0) {
+                string.push(`+${scientific_exponent}`);
+            }
+            else {
+                string.push(`${scientific_exponent}`);
+            }
+        }
+        else {
+            if (exponent >= 0) {
+                for (let i = 0; i < significand_digits; i++) {
+                    string.push(`${significand[index++]}`);
+                }
+            }
+            else {
+                let radix_position = significand_digits + exponent;
+                if (radix_position > 0) {
+                    for (let i = 0; i < radix_position; i++) {
+                        string.push(`${significand[index++]}`);
+                    }
+                }
+                else {
+                    string.push('0');
+                }
+                string.push('.');
+                while (radix_position++ < 0) {
+                    string.push('0');
+                }
+                for (let i = 0; i < significand_digits - Math.max(radix_position - 1, 0); i++) {
+                    string.push(`${significand[index++]}`);
+                }
+            }
+        }
+        return string.join('');
+    }
+    toJSON() {
+        return { $numberDecimal: this.toString() };
+    }
+    toExtendedJSON() {
+        return { $numberDecimal: this.toString() };
+    }
+    static fromExtendedJSON(doc) {
+        return Decimal128.fromString(doc.$numberDecimal);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        const d128string = inspect(this.toString(), options);
+        return `new Decimal128(${d128string})`;
+    }
+}
+
+class Double extends BSONValue {
+    get _bsontype() {
+        return 'Double';
+    }
+    constructor(value) {
+        super();
+        if (value instanceof Number) {
+            value = value.valueOf();
+        }
+        this.value = +value;
+    }
+    static fromString(value) {
+        const coercedValue = Number(value);
+        if (value === 'NaN')
+            return new Double(NaN);
+        if (value === 'Infinity')
+            return new Double(Infinity);
+        if (value === '-Infinity')
+            return new Double(-Infinity);
+        if (!Number.isFinite(coercedValue)) {
+            throw new BSONError(`Input: ${value} is not representable as a Double`);
+        }
+        if (value.trim() !== value) {
+            throw new BSONError(`Input: '${value}' contains whitespace`);
+        }
+        if (value === '') {
+            throw new BSONError(`Input is an empty string`);
+        }
+        if (/[^-0-9.+eE]/.test(value)) {
+            throw new BSONError(`Input: '${value}' is not in decimal or exponential notation`);
+        }
+        return new Double(coercedValue);
+    }
+    valueOf() {
+        return this.value;
+    }
+    toJSON() {
+        return this.value;
+    }
+    toString(radix) {
+        return this.value.toString(radix);
+    }
+    toExtendedJSON(options) {
+        if (options && (options.legacy || (options.relaxed && isFinite(this.value)))) {
+            return this.value;
+        }
+        if (Object.is(Math.sign(this.value), -0)) {
+            return { $numberDouble: '-0.0' };
+        }
+        return {
+            $numberDouble: Number.isInteger(this.value) ? this.value.toFixed(1) : this.value.toString()
+        };
+    }
+    static fromExtendedJSON(doc, options) {
+        const doubleValue = parseFloat(doc.$numberDouble);
+        return options && options.relaxed ? doubleValue : new Double(doubleValue);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        return `new Double(${inspect(this.value, options)})`;
+    }
+}
+
+class Int32 extends BSONValue {
+    get _bsontype() {
+        return 'Int32';
+    }
+    constructor(value) {
+        super();
+        if (value instanceof Number) {
+            value = value.valueOf();
+        }
+        this.value = +value | 0;
+    }
+    static fromString(value) {
+        const cleanedValue = removeLeadingZerosAndExplicitPlus(value);
+        const coercedValue = Number(value);
+        if (BSON_INT32_MAX < coercedValue) {
+            throw new BSONError(`Input: '${value}' is larger than the maximum value for Int32`);
+        }
+        else if (BSON_INT32_MIN > coercedValue) {
+            throw new BSONError(`Input: '${value}' is smaller than the minimum value for Int32`);
+        }
+        else if (!Number.isSafeInteger(coercedValue)) {
+            throw new BSONError(`Input: '${value}' is not a safe integer`);
+        }
+        else if (coercedValue.toString() !== cleanedValue) {
+            throw new BSONError(`Input: '${value}' is not a valid Int32 string`);
+        }
+        return new Int32(coercedValue);
+    }
+    valueOf() {
+        return this.value;
+    }
+    toString(radix) {
+        return this.value.toString(radix);
+    }
+    toJSON() {
+        return this.value;
+    }
+    toExtendedJSON(options) {
+        if (options && (options.relaxed || options.legacy))
+            return this.value;
+        return { $numberInt: this.value.toString() };
+    }
+    static fromExtendedJSON(doc, options) {
+        return options && options.relaxed ? parseInt(doc.$numberInt, 10) : new Int32(doc.$numberInt);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        return `new Int32(${inspect(this.value, options)})`;
+    }
+}
+
+class MaxKey extends BSONValue {
+    get _bsontype() {
+        return 'MaxKey';
+    }
+    toExtendedJSON() {
+        return { $maxKey: 1 };
+    }
+    static fromExtendedJSON() {
+        return new MaxKey();
+    }
+    inspect() {
+        return 'new MaxKey()';
+    }
+}
+
+class MinKey extends BSONValue {
+    get _bsontype() {
+        return 'MinKey';
+    }
+    toExtendedJSON() {
+        return { $minKey: 1 };
+    }
+    static fromExtendedJSON() {
+        return new MinKey();
+    }
+    inspect() {
+        return 'new MinKey()';
+    }
+}
+
+let PROCESS_UNIQUE = null;
+const __idCache = new WeakMap();
+class ObjectId extends BSONValue {
+    get _bsontype() {
+        return 'ObjectId';
+    }
+    constructor(inputId) {
+        super();
+        let workingId;
+        if (typeof inputId === 'object' && inputId && 'id' in inputId) {
+            if (typeof inputId.id !== 'string' && !ArrayBuffer.isView(inputId.id)) {
+                throw new BSONError('Argument passed in must have an id that is of type string or Buffer');
+            }
+            if ('toHexString' in inputId && typeof inputId.toHexString === 'function') {
+                workingId = ByteUtils.fromHex(inputId.toHexString());
+            }
+            else {
+                workingId = inputId.id;
+            }
+        }
+        else {
+            workingId = inputId;
+        }
+        if (workingId == null || typeof workingId === 'number') {
+            this.buffer = ObjectId.generate(typeof workingId === 'number' ? workingId : undefined);
+        }
+        else if (ArrayBuffer.isView(workingId) && workingId.byteLength === 12) {
+            this.buffer = ByteUtils.toLocalBufferType(workingId);
+        }
+        else if (typeof workingId === 'string') {
+            if (ObjectId.validateHexString(workingId)) {
+                this.buffer = ByteUtils.fromHex(workingId);
+                if (ObjectId.cacheHexString) {
+                    __idCache.set(this, workingId);
+                }
+            }
+            else {
+                throw new BSONError('input must be a 24 character hex string, 12 byte Uint8Array, or an integer');
+            }
+        }
+        else {
+            throw new BSONError('Argument passed in does not match the accepted types');
+        }
+    }
+    get id() {
+        return this.buffer;
+    }
+    set id(value) {
+        this.buffer = value;
+        if (ObjectId.cacheHexString) {
+            __idCache.set(this, ByteUtils.toHex(value));
+        }
+    }
+    static validateHexString(string) {
+        if (string?.length !== 24)
+            return false;
+        for (let i = 0; i < 24; i++) {
+            const char = string.charCodeAt(i);
+            if ((char >= 48 && char <= 57) ||
+                (char >= 97 && char <= 102) ||
+                (char >= 65 && char <= 70)) {
+                continue;
+            }
+            return false;
+        }
+        return true;
+    }
+    toHexString() {
+        if (ObjectId.cacheHexString) {
+            const __id = __idCache.get(this);
+            if (__id)
+                return __id;
+        }
+        const hexString = ByteUtils.toHex(this.id);
+        if (ObjectId.cacheHexString) {
+            __idCache.set(this, hexString);
+        }
+        return hexString;
+    }
+    static getInc() {
+        return (ObjectId.index = (ObjectId.index + 1) % 0xffffff);
+    }
+    static generate(time) {
+        if ('number' !== typeof time) {
+            time = Math.floor(Date.now() / 1000);
+        }
+        const inc = ObjectId.getInc();
+        const buffer = ByteUtils.allocateUnsafe(12);
+        NumberUtils.setInt32BE(buffer, 0, time);
+        if (PROCESS_UNIQUE === null) {
+            PROCESS_UNIQUE = ByteUtils.randomBytes(5);
+        }
+        buffer[4] = PROCESS_UNIQUE[0];
+        buffer[5] = PROCESS_UNIQUE[1];
+        buffer[6] = PROCESS_UNIQUE[2];
+        buffer[7] = PROCESS_UNIQUE[3];
+        buffer[8] = PROCESS_UNIQUE[4];
+        buffer[11] = inc & 0xff;
+        buffer[10] = (inc >> 8) & 0xff;
+        buffer[9] = (inc >> 16) & 0xff;
+        return buffer;
+    }
+    toString(encoding) {
+        if (encoding === 'base64')
+            return ByteUtils.toBase64(this.id);
+        if (encoding === 'hex')
+            return this.toHexString();
+        return this.toHexString();
+    }
+    toJSON() {
+        return this.toHexString();
+    }
+    static is(variable) {
+        return (variable != null &&
+            typeof variable === 'object' &&
+            '_bsontype' in variable &&
+            variable._bsontype === 'ObjectId');
+    }
+    equals(otherId) {
+        if (otherId === undefined || otherId === null) {
+            return false;
+        }
+        if (ObjectId.is(otherId)) {
+            return (this.buffer[11] === otherId.buffer[11] && ByteUtils.equals(this.buffer, otherId.buffer));
+        }
+        if (typeof otherId === 'string') {
+            return otherId.toLowerCase() === this.toHexString();
+        }
+        if (typeof otherId === 'object' && typeof otherId.toHexString === 'function') {
+            const otherIdString = otherId.toHexString();
+            const thisIdString = this.toHexString();
+            return typeof otherIdString === 'string' && otherIdString.toLowerCase() === thisIdString;
+        }
+        return false;
+    }
+    getTimestamp() {
+        const timestamp = new Date();
+        const time = NumberUtils.getUint32BE(this.buffer, 0);
+        timestamp.setTime(Math.floor(time) * 1000);
+        return timestamp;
+    }
+    static createPk() {
+        return new ObjectId();
+    }
+    serializeInto(uint8array, index) {
+        uint8array[index] = this.buffer[0];
+        uint8array[index + 1] = this.buffer[1];
+        uint8array[index + 2] = this.buffer[2];
+        uint8array[index + 3] = this.buffer[3];
+        uint8array[index + 4] = this.buffer[4];
+        uint8array[index + 5] = this.buffer[5];
+        uint8array[index + 6] = this.buffer[6];
+        uint8array[index + 7] = this.buffer[7];
+        uint8array[index + 8] = this.buffer[8];
+        uint8array[index + 9] = this.buffer[9];
+        uint8array[index + 10] = this.buffer[10];
+        uint8array[index + 11] = this.buffer[11];
+        return 12;
+    }
+    static createFromTime(time) {
+        const buffer = ByteUtils.allocate(12);
+        for (let i = 11; i >= 4; i--)
+            buffer[i] = 0;
+        NumberUtils.setInt32BE(buffer, 0, time);
+        return new ObjectId(buffer);
+    }
+    static createFromHexString(hexString) {
+        if (hexString?.length !== 24) {
+            throw new BSONError('hex string must be 24 characters');
+        }
+        return new ObjectId(ByteUtils.fromHex(hexString));
+    }
+    static createFromBase64(base64) {
+        if (base64?.length !== 16) {
+            throw new BSONError('base64 string must be 16 characters');
+        }
+        return new ObjectId(ByteUtils.fromBase64(base64));
+    }
+    static isValid(id) {
+        if (id == null)
+            return false;
+        if (typeof id === 'string')
+            return ObjectId.validateHexString(id);
+        try {
+            new ObjectId(id);
+            return true;
+        }
+        catch {
+            return false;
+        }
+    }
+    toExtendedJSON() {
+        if (this.toHexString)
+            return { $oid: this.toHexString() };
+        return { $oid: this.toString('hex') };
+    }
+    static fromExtendedJSON(doc) {
+        return new ObjectId(doc.$oid);
+    }
+    isCached() {
+        return ObjectId.cacheHexString && __idCache.has(this);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        return `new ObjectId(${inspect(this.toHexString(), options)})`;
+    }
+}
+ObjectId.index = Math.floor(Math.random() * 0xffffff);
+
+function internalCalculateObjectSize(object, serializeFunctions, ignoreUndefined) {
+    let totalLength = 4 + 1;
+    if (Array.isArray(object)) {
+        for (let i = 0; i < object.length; i++) {
+            totalLength += calculateElement(i.toString(), object[i], serializeFunctions, true, ignoreUndefined);
+        }
+    }
+    else {
+        if (typeof object?.toBSON === 'function') {
+            object = object.toBSON();
+        }
+        for (const key of Object.keys(object)) {
+            totalLength += calculateElement(key, object[key], serializeFunctions, false, ignoreUndefined);
+        }
+    }
+    return totalLength;
+}
+function calculateElement(name, value, serializeFunctions = false, isArray = false, ignoreUndefined = false) {
+    if (typeof value?.toBSON === 'function') {
+        value = value.toBSON();
+    }
+    switch (typeof value) {
+        case 'string':
+            return 1 + ByteUtils.utf8ByteLength(name) + 1 + 4 + ByteUtils.utf8ByteLength(value) + 1;
+        case 'number':
+            if (Math.floor(value) === value &&
+                value >= JS_INT_MIN &&
+                value <= JS_INT_MAX) {
+                if (value >= BSON_INT32_MIN && value <= BSON_INT32_MAX) {
+                    return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (4 + 1);
+                }
+                else {
+                    return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+                }
+            }
+            else {
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+            }
+        case 'undefined':
+            if (isArray || !ignoreUndefined)
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + 1;
+            return 0;
+        case 'boolean':
+            return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (1 + 1);
+        case 'object':
+            if (value != null &&
+                typeof value._bsontype === 'string' &&
+                value[BSON_VERSION_SYMBOL] !== BSON_MAJOR_VERSION) {
+                throw new BSONVersionError();
+            }
+            else if (value == null || value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') {
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + 1;
+            }
+            else if (value._bsontype === 'ObjectId') {
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (12 + 1);
+            }
+            else if (value instanceof Date || isDate(value)) {
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+            }
+            else if (ArrayBuffer.isView(value) ||
+                value instanceof ArrayBuffer ||
+                isAnyArrayBuffer(value)) {
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (1 + 4 + 1) + value.byteLength);
+            }
+            else if (value._bsontype === 'Long' ||
+                value._bsontype === 'Double' ||
+                value._bsontype === 'Timestamp') {
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+            }
+            else if (value._bsontype === 'Decimal128') {
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (16 + 1);
+            }
+            else if (value._bsontype === 'Code') {
+                if (value.scope != null && Object.keys(value.scope).length > 0) {
+                    return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                        1 +
+                        4 +
+                        4 +
+                        ByteUtils.utf8ByteLength(value.code.toString()) +
+                        1 +
+                        internalCalculateObjectSize(value.scope, serializeFunctions, ignoreUndefined));
+                }
+                else {
+                    return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                        1 +
+                        4 +
+                        ByteUtils.utf8ByteLength(value.code.toString()) +
+                        1);
+                }
+            }
+            else if (value._bsontype === 'Binary') {
+                const binary = value;
+                if (binary.sub_type === Binary.SUBTYPE_BYTE_ARRAY) {
+                    return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                        (binary.position + 1 + 4 + 1 + 4));
+                }
+                else {
+                    return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (binary.position + 1 + 4 + 1));
+                }
+            }
+            else if (value._bsontype === 'Symbol') {
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                    ByteUtils.utf8ByteLength(value.value) +
+                    4 +
+                    1 +
+                    1);
+            }
+            else if (value._bsontype === 'DBRef') {
+                const ordered_values = Object.assign({
+                    $ref: value.collection,
+                    $id: value.oid
+                }, value.fields);
+                if (value.db != null) {
+                    ordered_values['$db'] = value.db;
+                }
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                    1 +
+                    internalCalculateObjectSize(ordered_values, serializeFunctions, ignoreUndefined));
+            }
+            else if (value instanceof RegExp || isRegExp(value)) {
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                    1 +
+                    ByteUtils.utf8ByteLength(value.source) +
+                    1 +
+                    (value.global ? 1 : 0) +
+                    (value.ignoreCase ? 1 : 0) +
+                    (value.multiline ? 1 : 0) +
+                    1);
+            }
+            else if (value._bsontype === 'BSONRegExp') {
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                    1 +
+                    ByteUtils.utf8ByteLength(value.pattern) +
+                    1 +
+                    ByteUtils.utf8ByteLength(value.options) +
+                    1);
+            }
+            else {
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                    internalCalculateObjectSize(value, serializeFunctions, ignoreUndefined) +
+                    1);
+            }
+        case 'function':
+            if (serializeFunctions) {
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                    1 +
+                    4 +
+                    ByteUtils.utf8ByteLength(value.toString()) +
+                    1);
+            }
+            return 0;
+        case 'bigint':
+            return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+        case 'symbol':
+            return 0;
+        default:
+            throw new BSONError(`Unrecognized JS type: ${typeof value}`);
+    }
+}
+
+function alphabetize(str) {
+    return str.split('').sort().join('');
+}
+class BSONRegExp extends BSONValue {
+    get _bsontype() {
+        return 'BSONRegExp';
+    }
+    constructor(pattern, options) {
+        super();
+        this.pattern = pattern;
+        this.options = alphabetize(options ?? '');
+        if (this.pattern.indexOf('\x00') !== -1) {
+            throw new BSONError(`BSON Regex patterns cannot contain null bytes, found: ${JSON.stringify(this.pattern)}`);
+        }
+        if (this.options.indexOf('\x00') !== -1) {
+            throw new BSONError(`BSON Regex options cannot contain null bytes, found: ${JSON.stringify(this.options)}`);
+        }
+        for (let i = 0; i < this.options.length; i++) {
+            if (!(this.options[i] === 'i' ||
+                this.options[i] === 'm' ||
+                this.options[i] === 'x' ||
+                this.options[i] === 'l' ||
+                this.options[i] === 's' ||
+                this.options[i] === 'u')) {
+                throw new BSONError(`The regular expression option [${this.options[i]}] is not supported`);
+            }
+        }
+    }
+    static parseOptions(options) {
+        return options ? options.split('').sort().join('') : '';
+    }
+    toExtendedJSON(options) {
+        options = options || {};
+        if (options.legacy) {
+            return { $regex: this.pattern, $options: this.options };
+        }
+        return { $regularExpression: { pattern: this.pattern, options: this.options } };
+    }
+    static fromExtendedJSON(doc) {
+        if ('$regex' in doc) {
+            if (typeof doc.$regex !== 'string') {
+                if (doc.$regex._bsontype === 'BSONRegExp') {
+                    return doc;
+                }
+            }
+            else {
+                return new BSONRegExp(doc.$regex, BSONRegExp.parseOptions(doc.$options));
+            }
+        }
+        if ('$regularExpression' in doc) {
+            return new BSONRegExp(doc.$regularExpression.pattern, BSONRegExp.parseOptions(doc.$regularExpression.options));
+        }
+        throw new BSONError(`Unexpected BSONRegExp EJSON object form: ${JSON.stringify(doc)}`);
+    }
+    inspect(depth, options, inspect) {
+        const stylize = getStylizeFunction(options) ?? (v => v);
+        inspect ??= defaultInspect;
+        const pattern = stylize(inspect(this.pattern), 'regexp');
+        const flags = stylize(inspect(this.options), 'regexp');
+        return `new BSONRegExp(${pattern}, ${flags})`;
+    }
+}
+
+class BSONSymbol extends BSONValue {
+    get _bsontype() {
+        return 'BSONSymbol';
+    }
+    constructor(value) {
+        super();
+        this.value = value;
+    }
+    valueOf() {
+        return this.value;
+    }
+    toString() {
+        return this.value;
+    }
+    toJSON() {
+        return this.value;
+    }
+    toExtendedJSON() {
+        return { $symbol: this.value };
+    }
+    static fromExtendedJSON(doc) {
+        return new BSONSymbol(doc.$symbol);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        return `new BSONSymbol(${inspect(this.value, options)})`;
+    }
+}
+
+const LongWithoutOverridesClass = Long;
+class Timestamp extends LongWithoutOverridesClass {
+    get _bsontype() {
+        return 'Timestamp';
+    }
+    get i() {
+        return this.low >>> 0;
+    }
+    get t() {
+        return this.high >>> 0;
+    }
+    constructor(low) {
+        if (low == null) {
+            super(0, 0, true);
+        }
+        else if (typeof low === 'bigint') {
+            super(low, true);
+        }
+        else if (Long.isLong(low)) {
+            super(low.low, low.high, true);
+        }
+        else if (typeof low === 'object' && 't' in low && 'i' in low) {
+            if (typeof low.t !== 'number' && (typeof low.t !== 'object' || low.t._bsontype !== 'Int32')) {
+                throw new BSONError('Timestamp constructed from { t, i } must provide t as a number');
+            }
+            if (typeof low.i !== 'number' && (typeof low.i !== 'object' || low.i._bsontype !== 'Int32')) {
+                throw new BSONError('Timestamp constructed from { t, i } must provide i as a number');
+            }
+            const t = Number(low.t);
+            const i = Number(low.i);
+            if (t < 0 || Number.isNaN(t)) {
+                throw new BSONError('Timestamp constructed from { t, i } must provide a positive t');
+            }
+            if (i < 0 || Number.isNaN(i)) {
+                throw new BSONError('Timestamp constructed from { t, i } must provide a positive i');
+            }
+            if (t > 0xffff_ffff) {
+                throw new BSONError('Timestamp constructed from { t, i } must provide t equal or less than uint32 max');
+            }
+            if (i > 0xffff_ffff) {
+                throw new BSONError('Timestamp constructed from { t, i } must provide i equal or less than uint32 max');
+            }
+            super(i, t, true);
+        }
+        else {
+            throw new BSONError('A Timestamp can only be constructed with: bigint, Long, or { t: number; i: number }');
+        }
+    }
+    toJSON() {
+        return {
+            $timestamp: this.toString()
+        };
+    }
+    static fromInt(value) {
+        return new Timestamp(Long.fromInt(value, true));
+    }
+    static fromNumber(value) {
+        return new Timestamp(Long.fromNumber(value, true));
+    }
+    static fromBits(lowBits, highBits) {
+        return new Timestamp({ i: lowBits, t: highBits });
+    }
+    static fromString(str, optRadix) {
+        return new Timestamp(Long.fromString(str, true, optRadix));
+    }
+    toExtendedJSON() {
+        return { $timestamp: { t: this.t, i: this.i } };
+    }
+    static fromExtendedJSON(doc) {
+        const i = Long.isLong(doc.$timestamp.i)
+            ? doc.$timestamp.i.getLowBitsUnsigned()
+            : doc.$timestamp.i;
+        const t = Long.isLong(doc.$timestamp.t)
+            ? doc.$timestamp.t.getLowBitsUnsigned()
+            : doc.$timestamp.t;
+        return new Timestamp({ t, i });
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        const t = inspect(this.t, options);
+        const i = inspect(this.i, options);
+        return `new Timestamp({ t: ${t}, i: ${i} })`;
+    }
+}
+Timestamp.MAX_VALUE = Long.MAX_UNSIGNED_VALUE;
+
+const JS_INT_MAX_LONG = Long.fromNumber(JS_INT_MAX);
+const JS_INT_MIN_LONG = Long.fromNumber(JS_INT_MIN);
+function internalDeserialize(buffer, options, isArray) {
+    options = options == null ? {} : options;
+    const index = options && options.index ? options.index : 0;
+    const size = NumberUtils.getInt32LE(buffer, index);
+    if (size < 5) {
+        throw new BSONError(`bson size must be >= 5, is ${size}`);
+    }
+    if (options.allowObjectSmallerThanBufferSize && buffer.length < size) {
+        throw new BSONError(`buffer length ${buffer.length} must be >= bson size ${size}`);
+    }
+    if (!options.allowObjectSmallerThanBufferSize && buffer.length !== size) {
+        throw new BSONError(`buffer length ${buffer.length} must === bson size ${size}`);
+    }
+    if (size + index > buffer.byteLength) {
+        throw new BSONError(`(bson size ${size} + options.index ${index} must be <= buffer length ${buffer.byteLength})`);
+    }
+    if (buffer[index + size - 1] !== 0) {
+        throw new BSONError("One object, sized correctly, with a spot for an EOO, but the EOO isn't 0x00");
+    }
+    return deserializeObject(buffer, index, options, isArray);
+}
+const allowedDBRefKeys = /^\$ref$|^\$id$|^\$db$/;
+function deserializeObject(buffer, index, options, isArray = false) {
+    const fieldsAsRaw = options['fieldsAsRaw'] == null ? null : options['fieldsAsRaw'];
+    const raw = options['raw'] == null ? false : options['raw'];
+    const bsonRegExp = typeof options['bsonRegExp'] === 'boolean' ? options['bsonRegExp'] : false;
+    const promoteBuffers = options.promoteBuffers ?? false;
+    const promoteLongs = options.promoteLongs ?? true;
+    const promoteValues = options.promoteValues ?? true;
+    const useBigInt64 = options.useBigInt64 ?? false;
+    if (useBigInt64 && !promoteValues) {
+        throw new BSONError('Must either request bigint or Long for int64 deserialization');
+    }
+    if (useBigInt64 && !promoteLongs) {
+        throw new BSONError('Must either request bigint or Long for int64 deserialization');
+    }
+    const validation = options.validation == null ? { utf8: true } : options.validation;
+    let globalUTFValidation = true;
+    let validationSetting;
+    let utf8KeysSet;
+    const utf8ValidatedKeys = validation.utf8;
+    if (typeof utf8ValidatedKeys === 'boolean') {
+        validationSetting = utf8ValidatedKeys;
+    }
+    else {
+        globalUTFValidation = false;
+        const utf8ValidationValues = Object.keys(utf8ValidatedKeys).map(function (key) {
+            return utf8ValidatedKeys[key];
+        });
+        if (utf8ValidationValues.length === 0) {
+            throw new BSONError('UTF-8 validation setting cannot be empty');
+        }
+        if (typeof utf8ValidationValues[0] !== 'boolean') {
+            throw new BSONError('Invalid UTF-8 validation option, must specify boolean values');
+        }
+        validationSetting = utf8ValidationValues[0];
+        if (!utf8ValidationValues.every(item => item === validationSetting)) {
+            throw new BSONError('Invalid UTF-8 validation option - keys must be all true or all false');
+        }
+    }
+    if (!globalUTFValidation) {
+        utf8KeysSet = new Set();
+        for (const key of Object.keys(utf8ValidatedKeys)) {
+            utf8KeysSet.add(key);
+        }
+    }
+    const startIndex = index;
+    if (buffer.length < 5)
+        throw new BSONError('corrupt bson message < 5 bytes long');
+    const size = NumberUtils.getInt32LE(buffer, index);
+    index += 4;
+    if (size < 5 || size > buffer.length)
+        throw new BSONError('corrupt bson message');
+    const object = isArray ? [] : {};
+    let arrayIndex = 0;
+    const done = false;
+    let isPossibleDBRef = isArray ? false : null;
+    while (!done) {
+        const elementType = buffer[index++];
+        if (elementType === 0)
+            break;
+        let i = index;
+        while (buffer[i] !== 0x00 && i < buffer.length) {
+            i++;
+        }
+        if (i >= buffer.byteLength)
+            throw new BSONError('Bad BSON Document: illegal CString');
+        const name = isArray ? arrayIndex++ : ByteUtils.toUTF8(buffer, index, i, false);
+        let shouldValidateKey = true;
+        if (globalUTFValidation || utf8KeysSet?.has(name)) {
+            shouldValidateKey = validationSetting;
+        }
+        else {
+            shouldValidateKey = !validationSetting;
+        }
+        if (isPossibleDBRef !== false && name[0] === '$') {
+            isPossibleDBRef = allowedDBRefKeys.test(name);
+        }
+        let value;
+        index = i + 1;
+        if (elementType === BSON_DATA_STRING) {
+            const stringSize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            if (stringSize <= 0 ||
+                stringSize > buffer.length - index ||
+                buffer[index + stringSize - 1] !== 0) {
+                throw new BSONError('bad string length in bson');
+            }
+            value = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey);
+            index = index + stringSize;
+        }
+        else if (elementType === BSON_DATA_OID) {
+            const oid = ByteUtils.allocateUnsafe(12);
+            for (let i = 0; i < 12; i++)
+                oid[i] = buffer[index + i];
+            value = new ObjectId(oid);
+            index = index + 12;
+        }
+        else if (elementType === BSON_DATA_INT && promoteValues === false) {
+            value = new Int32(NumberUtils.getInt32LE(buffer, index));
+            index += 4;
+        }
+        else if (elementType === BSON_DATA_INT) {
+            value = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+        }
+        else if (elementType === BSON_DATA_NUMBER) {
+            value = NumberUtils.getFloat64LE(buffer, index);
+            index += 8;
+            if (promoteValues === false)
+                value = new Double(value);
+        }
+        else if (elementType === BSON_DATA_DATE) {
+            const lowBits = NumberUtils.getInt32LE(buffer, index);
+            const highBits = NumberUtils.getInt32LE(buffer, index + 4);
+            index += 8;
+            value = new Date(new Long(lowBits, highBits).toNumber());
+        }
+        else if (elementType === BSON_DATA_BOOLEAN) {
+            if (buffer[index] !== 0 && buffer[index] !== 1)
+                throw new BSONError('illegal boolean type value');
+            value = buffer[index++] === 1;
+        }
+        else if (elementType === BSON_DATA_OBJECT) {
+            const _index = index;
+            const objectSize = NumberUtils.getInt32LE(buffer, index);
+            if (objectSize <= 0 || objectSize > buffer.length - index)
+                throw new BSONError('bad embedded document length in bson');
+            if (raw) {
+                value = buffer.subarray(index, index + objectSize);
+            }
+            else {
+                let objectOptions = options;
+                if (!globalUTFValidation) {
+                    objectOptions = { ...options, validation: { utf8: shouldValidateKey } };
+                }
+                value = deserializeObject(buffer, _index, objectOptions, false);
+            }
+            index = index + objectSize;
+        }
+        else if (elementType === BSON_DATA_ARRAY) {
+            const _index = index;
+            const objectSize = NumberUtils.getInt32LE(buffer, index);
+            let arrayOptions = options;
+            const stopIndex = index + objectSize;
+            if (fieldsAsRaw && fieldsAsRaw[name]) {
+                arrayOptions = { ...options, raw: true };
+            }
+            if (!globalUTFValidation) {
+                arrayOptions = { ...arrayOptions, validation: { utf8: shouldValidateKey } };
+            }
+            value = deserializeObject(buffer, _index, arrayOptions, true);
+            index = index + objectSize;
+            if (buffer[index - 1] !== 0)
+                throw new BSONError('invalid array terminator byte');
+            if (index !== stopIndex)
+                throw new BSONError('corrupted array bson');
+        }
+        else if (elementType === BSON_DATA_UNDEFINED) {
+            value = undefined;
+        }
+        else if (elementType === BSON_DATA_NULL) {
+            value = null;
+        }
+        else if (elementType === BSON_DATA_LONG) {
+            if (useBigInt64) {
+                value = NumberUtils.getBigInt64LE(buffer, index);
+                index += 8;
+            }
+            else {
+                const lowBits = NumberUtils.getInt32LE(buffer, index);
+                const highBits = NumberUtils.getInt32LE(buffer, index + 4);
+                index += 8;
+                const long = new Long(lowBits, highBits);
+                if (promoteLongs && promoteValues === true) {
+                    value =
+                        long.lessThanOrEqual(JS_INT_MAX_LONG) && long.greaterThanOrEqual(JS_INT_MIN_LONG)
+                            ? long.toNumber()
+                            : long;
+                }
+                else {
+                    value = long;
+                }
+            }
+        }
+        else if (elementType === BSON_DATA_DECIMAL128) {
+            const bytes = ByteUtils.allocateUnsafe(16);
+            for (let i = 0; i < 16; i++)
+                bytes[i] = buffer[index + i];
+            index = index + 16;
+            value = new Decimal128(bytes);
+        }
+        else if (elementType === BSON_DATA_BINARY) {
+            let binarySize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            const totalBinarySize = binarySize;
+            const subType = buffer[index++];
+            if (binarySize < 0)
+                throw new BSONError('Negative binary type element size found');
+            if (binarySize > buffer.byteLength)
+                throw new BSONError('Binary type size larger than document size');
+            if (subType === Binary.SUBTYPE_BYTE_ARRAY) {
+                binarySize = NumberUtils.getInt32LE(buffer, index);
+                index += 4;
+                if (binarySize < 0)
+                    throw new BSONError('Negative binary type element size found for subtype 0x02');
+                if (binarySize > totalBinarySize - 4)
+                    throw new BSONError('Binary type with subtype 0x02 contains too long binary size');
+                if (binarySize < totalBinarySize - 4)
+                    throw new BSONError('Binary type with subtype 0x02 contains too short binary size');
+            }
+            if (promoteBuffers && promoteValues) {
+                value = ByteUtils.toLocalBufferType(buffer.subarray(index, index + binarySize));
+            }
+            else {
+                value = new Binary(buffer.subarray(index, index + binarySize), subType);
+                if (subType === BSON_BINARY_SUBTYPE_UUID_NEW && UUID.isValid(value)) {
+                    value = value.toUUID();
+                }
+            }
+            index = index + binarySize;
+        }
+        else if (elementType === BSON_DATA_REGEXP && bsonRegExp === false) {
+            i = index;
+            while (buffer[i] !== 0x00 && i < buffer.length) {
+                i++;
+            }
+            if (i >= buffer.length)
+                throw new BSONError('Bad BSON Document: illegal CString');
+            const source = ByteUtils.toUTF8(buffer, index, i, false);
+            index = i + 1;
+            i = index;
+            while (buffer[i] !== 0x00 && i < buffer.length) {
+                i++;
+            }
+            if (i >= buffer.length)
+                throw new BSONError('Bad BSON Document: illegal CString');
+            const regExpOptions = ByteUtils.toUTF8(buffer, index, i, false);
+            index = i + 1;
+            const optionsArray = new Array(regExpOptions.length);
+            for (i = 0; i < regExpOptions.length; i++) {
+                switch (regExpOptions[i]) {
+                    case 'm':
+                        optionsArray[i] = 'm';
+                        break;
+                    case 's':
+                        optionsArray[i] = 'g';
+                        break;
+                    case 'i':
+                        optionsArray[i] = 'i';
+                        break;
+                }
+            }
+            value = new RegExp(source, optionsArray.join(''));
+        }
+        else if (elementType === BSON_DATA_REGEXP && bsonRegExp === true) {
+            i = index;
+            while (buffer[i] !== 0x00 && i < buffer.length) {
+                i++;
+            }
+            if (i >= buffer.length)
+                throw new BSONError('Bad BSON Document: illegal CString');
+            const source = ByteUtils.toUTF8(buffer, index, i, false);
+            index = i + 1;
+            i = index;
+            while (buffer[i] !== 0x00 && i < buffer.length) {
+                i++;
+            }
+            if (i >= buffer.length)
+                throw new BSONError('Bad BSON Document: illegal CString');
+            const regExpOptions = ByteUtils.toUTF8(buffer, index, i, false);
+            index = i + 1;
+            value = new BSONRegExp(source, regExpOptions);
+        }
+        else if (elementType === BSON_DATA_SYMBOL) {
+            const stringSize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            if (stringSize <= 0 ||
+                stringSize > buffer.length - index ||
+                buffer[index + stringSize - 1] !== 0) {
+                throw new BSONError('bad string length in bson');
+            }
+            const symbol = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey);
+            value = promoteValues ? symbol : new BSONSymbol(symbol);
+            index = index + stringSize;
+        }
+        else if (elementType === BSON_DATA_TIMESTAMP) {
+            value = new Timestamp({
+                i: NumberUtils.getUint32LE(buffer, index),
+                t: NumberUtils.getUint32LE(buffer, index + 4)
+            });
+            index += 8;
+        }
+        else if (elementType === BSON_DATA_MIN_KEY) {
+            value = new MinKey();
+        }
+        else if (elementType === BSON_DATA_MAX_KEY) {
+            value = new MaxKey();
+        }
+        else if (elementType === BSON_DATA_CODE) {
+            const stringSize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            if (stringSize <= 0 ||
+                stringSize > buffer.length - index ||
+                buffer[index + stringSize - 1] !== 0) {
+                throw new BSONError('bad string length in bson');
+            }
+            const functionString = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey);
+            value = new Code(functionString);
+            index = index + stringSize;
+        }
+        else if (elementType === BSON_DATA_CODE_W_SCOPE) {
+            const totalSize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            if (totalSize < 4 + 4 + 4 + 1) {
+                throw new BSONError('code_w_scope total size shorter minimum expected length');
+            }
+            const stringSize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            if (stringSize <= 0 ||
+                stringSize > buffer.length - index ||
+                buffer[index + stringSize - 1] !== 0) {
+                throw new BSONError('bad string length in bson');
+            }
+            const functionString = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey);
+            index = index + stringSize;
+            const _index = index;
+            const objectSize = NumberUtils.getInt32LE(buffer, index);
+            const scopeObject = deserializeObject(buffer, _index, options, false);
+            index = index + objectSize;
+            if (totalSize < 4 + 4 + objectSize + stringSize) {
+                throw new BSONError('code_w_scope total size is too short, truncating scope');
+            }
+            if (totalSize > 4 + 4 + objectSize + stringSize) {
+                throw new BSONError('code_w_scope total size is too long, clips outer document');
+            }
+            value = new Code(functionString, scopeObject);
+        }
+        else if (elementType === BSON_DATA_DBPOINTER) {
+            const stringSize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            if (stringSize <= 0 ||
+                stringSize > buffer.length - index ||
+                buffer[index + stringSize - 1] !== 0)
+                throw new BSONError('bad string length in bson');
+            const namespace = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey);
+            index = index + stringSize;
+            const oidBuffer = ByteUtils.allocateUnsafe(12);
+            for (let i = 0; i < 12; i++)
+                oidBuffer[i] = buffer[index + i];
+            const oid = new ObjectId(oidBuffer);
+            index = index + 12;
+            value = new DBRef(namespace, oid);
+        }
+        else {
+            throw new BSONError(`Detected unknown BSON type ${elementType.toString(16)} for fieldname "${name}"`);
+        }
+        if (name === '__proto__') {
+            Object.defineProperty(object, name, {
+                value,
+                writable: true,
+                enumerable: true,
+                configurable: true
+            });
+        }
+        else {
+            object[name] = value;
+        }
+    }
+    if (size !== index - startIndex) {
+        if (isArray)
+            throw new BSONError('corrupt array bson');
+        throw new BSONError('corrupt object bson');
+    }
+    if (!isPossibleDBRef)
+        return object;
+    if (isDBRefLike(object)) {
+        const copy = Object.assign({}, object);
+        delete copy.$ref;
+        delete copy.$id;
+        delete copy.$db;
+        return new DBRef(object.$ref, object.$id, object.$db, copy);
+    }
+    return object;
+}
+
+const regexp = /\x00/;
+const ignoreKeys = new Set(['$db', '$ref', '$id', '$clusterTime']);
+function serializeString(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_STRING;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes + 1;
+    buffer[index - 1] = 0;
+    const size = ByteUtils.encodeUTF8Into(buffer, value, index + 4);
+    NumberUtils.setInt32LE(buffer, index, size + 1);
+    index = index + 4 + size;
+    buffer[index++] = 0;
+    return index;
+}
+function serializeNumber(buffer, key, value, index) {
+    const isNegativeZero = Object.is(value, -0);
+    const type = !isNegativeZero &&
+        Number.isSafeInteger(value) &&
+        value <= BSON_INT32_MAX &&
+        value >= BSON_INT32_MIN
+        ? BSON_DATA_INT
+        : BSON_DATA_NUMBER;
+    buffer[index++] = type;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0x00;
+    if (type === BSON_DATA_INT) {
+        index += NumberUtils.setInt32LE(buffer, index, value);
+    }
+    else {
+        index += NumberUtils.setFloat64LE(buffer, index, value);
+    }
+    return index;
+}
+function serializeBigInt(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_LONG;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index += numberOfWrittenBytes;
+    buffer[index++] = 0;
+    index += NumberUtils.setBigInt64LE(buffer, index, value);
+    return index;
+}
+function serializeNull(buffer, key, _, index) {
+    buffer[index++] = BSON_DATA_NULL;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    return index;
+}
+function serializeBoolean(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_BOOLEAN;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    buffer[index++] = value ? 1 : 0;
+    return index;
+}
+function serializeDate(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_DATE;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const dateInMilis = Long.fromNumber(value.getTime());
+    const lowBits = dateInMilis.getLowBits();
+    const highBits = dateInMilis.getHighBits();
+    index += NumberUtils.setInt32LE(buffer, index, lowBits);
+    index += NumberUtils.setInt32LE(buffer, index, highBits);
+    return index;
+}
+function serializeRegExp(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_REGEXP;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    if (value.source && value.source.match(regexp) != null) {
+        throw new BSONError('value ' + value.source + ' must not contain null bytes');
+    }
+    index = index + ByteUtils.encodeUTF8Into(buffer, value.source, index);
+    buffer[index++] = 0x00;
+    if (value.ignoreCase)
+        buffer[index++] = 0x69;
+    if (value.global)
+        buffer[index++] = 0x73;
+    if (value.multiline)
+        buffer[index++] = 0x6d;
+    buffer[index++] = 0x00;
+    return index;
+}
+function serializeBSONRegExp(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_REGEXP;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    if (value.pattern.match(regexp) != null) {
+        throw new BSONError('pattern ' + value.pattern + ' must not contain null bytes');
+    }
+    index = index + ByteUtils.encodeUTF8Into(buffer, value.pattern, index);
+    buffer[index++] = 0x00;
+    const sortedOptions = value.options.split('').sort().join('');
+    index = index + ByteUtils.encodeUTF8Into(buffer, sortedOptions, index);
+    buffer[index++] = 0x00;
+    return index;
+}
+function serializeMinMax(buffer, key, value, index) {
+    if (value === null) {
+        buffer[index++] = BSON_DATA_NULL;
+    }
+    else if (value._bsontype === 'MinKey') {
+        buffer[index++] = BSON_DATA_MIN_KEY;
+    }
+    else {
+        buffer[index++] = BSON_DATA_MAX_KEY;
+    }
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    return index;
+}
+function serializeObjectId(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_OID;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    index += value.serializeInto(buffer, index);
+    return index;
+}
+function serializeBuffer(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_BINARY;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const size = value.length;
+    index += NumberUtils.setInt32LE(buffer, index, size);
+    buffer[index++] = BSON_BINARY_SUBTYPE_DEFAULT;
+    if (size <= 16) {
+        for (let i = 0; i < size; i++)
+            buffer[index + i] = value[i];
+    }
+    else {
+        buffer.set(value, index);
+    }
+    index = index + size;
+    return index;
+}
+function serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path) {
+    if (path.has(value)) {
+        throw new BSONError('Cannot convert circular structure to BSON');
+    }
+    path.add(value);
+    buffer[index++] = Array.isArray(value) ? BSON_DATA_ARRAY : BSON_DATA_OBJECT;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const endIndex = serializeInto(buffer, value, checkKeys, index, depth + 1, serializeFunctions, ignoreUndefined, path);
+    path.delete(value);
+    return endIndex;
+}
+function serializeDecimal128(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_DECIMAL128;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    for (let i = 0; i < 16; i++)
+        buffer[index + i] = value.bytes[i];
+    return index + 16;
+}
+function serializeLong(buffer, key, value, index) {
+    buffer[index++] =
+        value._bsontype === 'Long' ? BSON_DATA_LONG : BSON_DATA_TIMESTAMP;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const lowBits = value.getLowBits();
+    const highBits = value.getHighBits();
+    index += NumberUtils.setInt32LE(buffer, index, lowBits);
+    index += NumberUtils.setInt32LE(buffer, index, highBits);
+    return index;
+}
+function serializeInt32(buffer, key, value, index) {
+    value = value.valueOf();
+    buffer[index++] = BSON_DATA_INT;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    index += NumberUtils.setInt32LE(buffer, index, value);
+    return index;
+}
+function serializeDouble(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_NUMBER;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    index += NumberUtils.setFloat64LE(buffer, index, value.value);
+    return index;
+}
+function serializeFunction(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_CODE;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const functionString = value.toString();
+    const size = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1;
+    NumberUtils.setInt32LE(buffer, index, size);
+    index = index + 4 + size - 1;
+    buffer[index++] = 0;
+    return index;
+}
+function serializeCode(buffer, key, value, index, checkKeys = false, depth = 0, serializeFunctions = false, ignoreUndefined = true, path) {
+    if (value.scope && typeof value.scope === 'object') {
+        buffer[index++] = BSON_DATA_CODE_W_SCOPE;
+        const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+        index = index + numberOfWrittenBytes;
+        buffer[index++] = 0;
+        let startIndex = index;
+        const functionString = value.code;
+        index = index + 4;
+        const codeSize = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1;
+        NumberUtils.setInt32LE(buffer, index, codeSize);
+        buffer[index + 4 + codeSize - 1] = 0;
+        index = index + codeSize + 4;
+        const endIndex = serializeInto(buffer, value.scope, checkKeys, index, depth + 1, serializeFunctions, ignoreUndefined, path);
+        index = endIndex - 1;
+        const totalSize = endIndex - startIndex;
+        startIndex += NumberUtils.setInt32LE(buffer, startIndex, totalSize);
+        buffer[index++] = 0;
+    }
+    else {
+        buffer[index++] = BSON_DATA_CODE;
+        const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+        index = index + numberOfWrittenBytes;
+        buffer[index++] = 0;
+        const functionString = value.code.toString();
+        const size = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1;
+        NumberUtils.setInt32LE(buffer, index, size);
+        index = index + 4 + size - 1;
+        buffer[index++] = 0;
+    }
+    return index;
+}
+function serializeBinary(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_BINARY;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const data = value.buffer;
+    let size = value.position;
+    if (value.sub_type === Binary.SUBTYPE_BYTE_ARRAY)
+        size = size + 4;
+    index += NumberUtils.setInt32LE(buffer, index, size);
+    buffer[index++] = value.sub_type;
+    if (value.sub_type === Binary.SUBTYPE_BYTE_ARRAY) {
+        size = size - 4;
+        index += NumberUtils.setInt32LE(buffer, index, size);
+    }
+    if (value.sub_type === Binary.SUBTYPE_VECTOR) {
+        validateBinaryVector(value);
+    }
+    if (size <= 16) {
+        for (let i = 0; i < size; i++)
+            buffer[index + i] = data[i];
+    }
+    else {
+        buffer.set(data, index);
+    }
+    index = index + value.position;
+    return index;
+}
+function serializeSymbol(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_SYMBOL;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const size = ByteUtils.encodeUTF8Into(buffer, value.value, index + 4) + 1;
+    NumberUtils.setInt32LE(buffer, index, size);
+    index = index + 4 + size - 1;
+    buffer[index++] = 0;
+    return index;
+}
+function serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path) {
+    buffer[index++] = BSON_DATA_OBJECT;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    let startIndex = index;
+    let output = {
+        $ref: value.collection || value.namespace,
+        $id: value.oid
+    };
+    if (value.db != null) {
+        output.$db = value.db;
+    }
+    output = Object.assign(output, value.fields);
+    const endIndex = serializeInto(buffer, output, false, index, depth + 1, serializeFunctions, true, path);
+    const size = endIndex - startIndex;
+    startIndex += NumberUtils.setInt32LE(buffer, index, size);
+    return endIndex;
+}
+function serializeInto(buffer, object, checkKeys, startingIndex, depth, serializeFunctions, ignoreUndefined, path) {
+    if (path == null) {
+        if (object == null) {
+            buffer[0] = 0x05;
+            buffer[1] = 0x00;
+            buffer[2] = 0x00;
+            buffer[3] = 0x00;
+            buffer[4] = 0x00;
+            return 5;
+        }
+        if (Array.isArray(object)) {
+            throw new BSONError('serialize does not support an array as the root input');
+        }
+        if (typeof object !== 'object') {
+            throw new BSONError('serialize does not support non-object as the root input');
+        }
+        else if ('_bsontype' in object && typeof object._bsontype === 'string') {
+            throw new BSONError(`BSON types cannot be serialized as a document`);
+        }
+        else if (isDate(object) ||
+            isRegExp(object) ||
+            isUint8Array(object) ||
+            isAnyArrayBuffer(object)) {
+            throw new BSONError(`date, regexp, typedarray, and arraybuffer cannot be BSON documents`);
+        }
+        path = new Set();
+    }
+    path.add(object);
+    let index = startingIndex + 4;
+    if (Array.isArray(object)) {
+        for (let i = 0; i < object.length; i++) {
+            const key = `${i}`;
+            let value = object[i];
+            if (typeof value?.toBSON === 'function') {
+                value = value.toBSON();
+            }
+            const type = typeof value;
+            if (value === undefined) {
+                index = serializeNull(buffer, key, value, index);
+            }
+            else if (value === null) {
+                index = serializeNull(buffer, key, value, index);
+            }
+            else if (type === 'string') {
+                index = serializeString(buffer, key, value, index);
+            }
+            else if (type === 'number') {
+                index = serializeNumber(buffer, key, value, index);
+            }
+            else if (type === 'bigint') {
+                index = serializeBigInt(buffer, key, value, index);
+            }
+            else if (type === 'boolean') {
+                index = serializeBoolean(buffer, key, value, index);
+            }
+            else if (type === 'object' && value._bsontype == null) {
+                if (value instanceof Date || isDate(value)) {
+                    index = serializeDate(buffer, key, value, index);
+                }
+                else if (value instanceof Uint8Array || isUint8Array(value)) {
+                    index = serializeBuffer(buffer, key, value, index);
+                }
+                else if (value instanceof RegExp || isRegExp(value)) {
+                    index = serializeRegExp(buffer, key, value, index);
+                }
+                else {
+                    index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path);
+                }
+            }
+            else if (type === 'object') {
+                if (value[BSON_VERSION_SYMBOL] !== BSON_MAJOR_VERSION) {
+                    throw new BSONVersionError();
+                }
+                else if (value._bsontype === 'ObjectId') {
+                    index = serializeObjectId(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Decimal128') {
+                    index = serializeDecimal128(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') {
+                    index = serializeLong(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Double') {
+                    index = serializeDouble(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Code') {
+                    index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path);
+                }
+                else if (value._bsontype === 'Binary') {
+                    index = serializeBinary(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'BSONSymbol') {
+                    index = serializeSymbol(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'DBRef') {
+                    index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path);
+                }
+                else if (value._bsontype === 'BSONRegExp') {
+                    index = serializeBSONRegExp(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Int32') {
+                    index = serializeInt32(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') {
+                    index = serializeMinMax(buffer, key, value, index);
+                }
+                else if (typeof value._bsontype !== 'undefined') {
+                    throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`);
+                }
+            }
+            else if (type === 'function' && serializeFunctions) {
+                index = serializeFunction(buffer, key, value, index);
+            }
+        }
+    }
+    else if (object instanceof Map || isMap(object)) {
+        const iterator = object.entries();
+        let done = false;
+        while (!done) {
+            const entry = iterator.next();
+            done = !!entry.done;
+            if (done)
+                continue;
+            const key = entry.value[0];
+            let value = entry.value[1];
+            if (typeof value?.toBSON === 'function') {
+                value = value.toBSON();
+            }
+            const type = typeof value;
+            if (typeof key === 'string' && !ignoreKeys.has(key)) {
+                if (key.match(regexp) != null) {
+                    throw new BSONError('key ' + key + ' must not contain null bytes');
+                }
+                if (checkKeys) {
+                    if ('$' === key[0]) {
+                        throw new BSONError('key ' + key + " must not start with '$'");
+                    }
+                    else if (key.includes('.')) {
+                        throw new BSONError('key ' + key + " must not contain '.'");
+                    }
+                }
+            }
+            if (value === undefined) {
+                if (ignoreUndefined === false)
+                    index = serializeNull(buffer, key, value, index);
+            }
+            else if (value === null) {
+                index = serializeNull(buffer, key, value, index);
+            }
+            else if (type === 'string') {
+                index = serializeString(buffer, key, value, index);
+            }
+            else if (type === 'number') {
+                index = serializeNumber(buffer, key, value, index);
+            }
+            else if (type === 'bigint') {
+                index = serializeBigInt(buffer, key, value, index);
+            }
+            else if (type === 'boolean') {
+                index = serializeBoolean(buffer, key, value, index);
+            }
+            else if (type === 'object' && value._bsontype == null) {
+                if (value instanceof Date || isDate(value)) {
+                    index = serializeDate(buffer, key, value, index);
+                }
+                else if (value instanceof Uint8Array || isUint8Array(value)) {
+                    index = serializeBuffer(buffer, key, value, index);
+                }
+                else if (value instanceof RegExp || isRegExp(value)) {
+                    index = serializeRegExp(buffer, key, value, index);
+                }
+                else {
+                    index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path);
+                }
+            }
+            else if (type === 'object') {
+                if (value[BSON_VERSION_SYMBOL] !== BSON_MAJOR_VERSION) {
+                    throw new BSONVersionError();
+                }
+                else if (value._bsontype === 'ObjectId') {
+                    index = serializeObjectId(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Decimal128') {
+                    index = serializeDecimal128(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') {
+                    index = serializeLong(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Double') {
+                    index = serializeDouble(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Code') {
+                    index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path);
+                }
+                else if (value._bsontype === 'Binary') {
+                    index = serializeBinary(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'BSONSymbol') {
+                    index = serializeSymbol(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'DBRef') {
+                    index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path);
+                }
+                else if (value._bsontype === 'BSONRegExp') {
+                    index = serializeBSONRegExp(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Int32') {
+                    index = serializeInt32(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') {
+                    index = serializeMinMax(buffer, key, value, index);
+                }
+                else if (typeof value._bsontype !== 'undefined') {
+                    throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`);
+                }
+            }
+            else if (type === 'function' && serializeFunctions) {
+                index = serializeFunction(buffer, key, value, index);
+            }
+        }
+    }
+    else {
+        if (typeof object?.toBSON === 'function') {
+            object = object.toBSON();
+            if (object != null && typeof object !== 'object') {
+                throw new BSONError('toBSON function did not return an object');
+            }
+        }
+        for (const key of Object.keys(object)) {
+            let value = object[key];
+            if (typeof value?.toBSON === 'function') {
+                value = value.toBSON();
+            }
+            const type = typeof value;
+            if (typeof key === 'string' && !ignoreKeys.has(key)) {
+                if (key.match(regexp) != null) {
+                    throw new BSONError('key ' + key + ' must not contain null bytes');
+                }
+                if (checkKeys) {
+                    if ('$' === key[0]) {
+                        throw new BSONError('key ' + key + " must not start with '$'");
+                    }
+                    else if (key.includes('.')) {
+                        throw new BSONError('key ' + key + " must not contain '.'");
+                    }
+                }
+            }
+            if (value === undefined) {
+                if (ignoreUndefined === false)
+                    index = serializeNull(buffer, key, value, index);
+            }
+            else if (value === null) {
+                index = serializeNull(buffer, key, value, index);
+            }
+            else if (type === 'string') {
+                index = serializeString(buffer, key, value, index);
+            }
+            else if (type === 'number') {
+                index = serializeNumber(buffer, key, value, index);
+            }
+            else if (type === 'bigint') {
+                index = serializeBigInt(buffer, key, value, index);
+            }
+            else if (type === 'boolean') {
+                index = serializeBoolean(buffer, key, value, index);
+            }
+            else if (type === 'object' && value._bsontype == null) {
+                if (value instanceof Date || isDate(value)) {
+                    index = serializeDate(buffer, key, value, index);
+                }
+                else if (value instanceof Uint8Array || isUint8Array(value)) {
+                    index = serializeBuffer(buffer, key, value, index);
+                }
+                else if (value instanceof RegExp || isRegExp(value)) {
+                    index = serializeRegExp(buffer, key, value, index);
+                }
+                else {
+                    index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path);
+                }
+            }
+            else if (type === 'object') {
+                if (value[BSON_VERSION_SYMBOL] !== BSON_MAJOR_VERSION) {
+                    throw new BSONVersionError();
+                }
+                else if (value._bsontype === 'ObjectId') {
+                    index = serializeObjectId(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Decimal128') {
+                    index = serializeDecimal128(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') {
+                    index = serializeLong(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Double') {
+                    index = serializeDouble(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Code') {
+                    index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path);
+                }
+                else if (value._bsontype === 'Binary') {
+                    index = serializeBinary(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'BSONSymbol') {
+                    index = serializeSymbol(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'DBRef') {
+                    index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path);
+                }
+                else if (value._bsontype === 'BSONRegExp') {
+                    index = serializeBSONRegExp(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Int32') {
+                    index = serializeInt32(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') {
+                    index = serializeMinMax(buffer, key, value, index);
+                }
+                else if (typeof value._bsontype !== 'undefined') {
+                    throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`);
+                }
+            }
+            else if (type === 'function' && serializeFunctions) {
+                index = serializeFunction(buffer, key, value, index);
+            }
+        }
+    }
+    path.delete(object);
+    buffer[index++] = 0x00;
+    const size = index - startingIndex;
+    startingIndex += NumberUtils.setInt32LE(buffer, startingIndex, size);
+    return index;
+}
+
+function isBSONType(value) {
+    return (value != null &&
+        typeof value === 'object' &&
+        '_bsontype' in value &&
+        typeof value._bsontype === 'string');
+}
+const keysToCodecs = {
+    $oid: ObjectId,
+    $binary: Binary,
+    $uuid: Binary,
+    $symbol: BSONSymbol,
+    $numberInt: Int32,
+    $numberDecimal: Decimal128,
+    $numberDouble: Double,
+    $numberLong: Long,
+    $minKey: MinKey,
+    $maxKey: MaxKey,
+    $regex: BSONRegExp,
+    $regularExpression: BSONRegExp,
+    $timestamp: Timestamp
+};
+function deserializeValue(value, options = {}) {
+    if (typeof value === 'number') {
+        const in32BitRange = value <= BSON_INT32_MAX && value >= BSON_INT32_MIN;
+        const in64BitRange = value <= BSON_INT64_MAX && value >= BSON_INT64_MIN;
+        if (options.relaxed || options.legacy) {
+            return value;
+        }
+        if (Number.isInteger(value) && !Object.is(value, -0)) {
+            if (in32BitRange) {
+                return new Int32(value);
+            }
+            if (in64BitRange) {
+                if (options.useBigInt64) {
+                    return BigInt(value);
+                }
+                return Long.fromNumber(value);
+            }
+        }
+        return new Double(value);
+    }
+    if (value == null || typeof value !== 'object')
+        return value;
+    if (value.$undefined)
+        return null;
+    const keys = Object.keys(value).filter(k => k.startsWith('$') && value[k] != null);
+    for (let i = 0; i < keys.length; i++) {
+        const c = keysToCodecs[keys[i]];
+        if (c)
+            return c.fromExtendedJSON(value, options);
+    }
+    if (value.$date != null) {
+        const d = value.$date;
+        const date = new Date();
+        if (options.legacy) {
+            if (typeof d === 'number')
+                date.setTime(d);
+            else if (typeof d === 'string')
+                date.setTime(Date.parse(d));
+            else if (typeof d === 'bigint')
+                date.setTime(Number(d));
+            else
+                throw new BSONRuntimeError(`Unrecognized type for EJSON date: ${typeof d}`);
+        }
+        else {
+            if (typeof d === 'string')
+                date.setTime(Date.parse(d));
+            else if (Long.isLong(d))
+                date.setTime(d.toNumber());
+            else if (typeof d === 'number' && options.relaxed)
+                date.setTime(d);
+            else if (typeof d === 'bigint')
+                date.setTime(Number(d));
+            else
+                throw new BSONRuntimeError(`Unrecognized type for EJSON date: ${typeof d}`);
+        }
+        return date;
+    }
+    if (value.$code != null) {
+        const copy = Object.assign({}, value);
+        if (value.$scope) {
+            copy.$scope = deserializeValue(value.$scope);
+        }
+        return Code.fromExtendedJSON(value);
+    }
+    if (isDBRefLike(value) || value.$dbPointer) {
+        const v = value.$ref ? value : value.$dbPointer;
+        if (v instanceof DBRef)
+            return v;
+        const dollarKeys = Object.keys(v).filter(k => k.startsWith('$'));
+        let valid = true;
+        dollarKeys.forEach(k => {
+            if (['$ref', '$id', '$db'].indexOf(k) === -1)
+                valid = false;
+        });
+        if (valid)
+            return DBRef.fromExtendedJSON(v);
+    }
+    return value;
+}
+function serializeArray(array, options) {
+    return array.map((v, index) => {
+        options.seenObjects.push({ propertyName: `index ${index}`, obj: null });
+        try {
+            return serializeValue(v, options);
+        }
+        finally {
+            options.seenObjects.pop();
+        }
+    });
+}
+function getISOString(date) {
+    const isoStr = date.toISOString();
+    return date.getUTCMilliseconds() !== 0 ? isoStr : isoStr.slice(0, -5) + 'Z';
+}
+function serializeValue(value, options) {
+    if (value instanceof Map || isMap(value)) {
+        const obj = Object.create(null);
+        for (const [k, v] of value) {
+            if (typeof k !== 'string') {
+                throw new BSONError('Can only serialize maps with string keys');
+            }
+            obj[k] = v;
+        }
+        return serializeValue(obj, options);
+    }
+    if ((typeof value === 'object' || typeof value === 'function') && value !== null) {
+        const index = options.seenObjects.findIndex(entry => entry.obj === value);
+        if (index !== -1) {
+            const props = options.seenObjects.map(entry => entry.propertyName);
+            const leadingPart = props
+                .slice(0, index)
+                .map(prop => `${prop} -> `)
+                .join('');
+            const alreadySeen = props[index];
+            const circularPart = ' -> ' +
+                props
+                    .slice(index + 1, props.length - 1)
+                    .map(prop => `${prop} -> `)
+                    .join('');
+            const current = props[props.length - 1];
+            const leadingSpace = ' '.repeat(leadingPart.length + alreadySeen.length / 2);
+            const dashes = '-'.repeat(circularPart.length + (alreadySeen.length + current.length) / 2 - 1);
+            throw new BSONError('Converting circular structure to EJSON:\n' +
+                `    ${leadingPart}${alreadySeen}${circularPart}${current}\n` +
+                `    ${leadingSpace}\\${dashes}/`);
+        }
+        options.seenObjects[options.seenObjects.length - 1].obj = value;
+    }
+    if (Array.isArray(value))
+        return serializeArray(value, options);
+    if (value === undefined)
+        return null;
+    if (value instanceof Date || isDate(value)) {
+        const dateNum = value.getTime(), inRange = dateNum > -1 && dateNum < 253402318800000;
+        if (options.legacy) {
+            return options.relaxed && inRange
+                ? { $date: value.getTime() }
+                : { $date: getISOString(value) };
+        }
+        return options.relaxed && inRange
+            ? { $date: getISOString(value) }
+            : { $date: { $numberLong: value.getTime().toString() } };
+    }
+    if (typeof value === 'number' && (!options.relaxed || !isFinite(value))) {
+        if (Number.isInteger(value) && !Object.is(value, -0)) {
+            if (value >= BSON_INT32_MIN && value <= BSON_INT32_MAX) {
+                return { $numberInt: value.toString() };
+            }
+            if (value >= BSON_INT64_MIN && value <= BSON_INT64_MAX) {
+                return { $numberLong: value.toString() };
+            }
+        }
+        return { $numberDouble: Object.is(value, -0) ? '-0.0' : value.toString() };
+    }
+    if (typeof value === 'bigint') {
+        if (!options.relaxed) {
+            return { $numberLong: BigInt.asIntN(64, value).toString() };
+        }
+        return Number(BigInt.asIntN(64, value));
+    }
+    if (value instanceof RegExp || isRegExp(value)) {
+        let flags = value.flags;
+        if (flags === undefined) {
+            const match = value.toString().match(/[gimuy]*$/);
+            if (match) {
+                flags = match[0];
+            }
+        }
+        const rx = new BSONRegExp(value.source, flags);
+        return rx.toExtendedJSON(options);
+    }
+    if (value != null && typeof value === 'object')
+        return serializeDocument(value, options);
+    return value;
+}
+const BSON_TYPE_MAPPINGS = {
+    Binary: (o) => new Binary(o.value(), o.sub_type),
+    Code: (o) => new Code(o.code, o.scope),
+    DBRef: (o) => new DBRef(o.collection || o.namespace, o.oid, o.db, o.fields),
+    Decimal128: (o) => new Decimal128(o.bytes),
+    Double: (o) => new Double(o.value),
+    Int32: (o) => new Int32(o.value),
+    Long: (o) => Long.fromBits(o.low != null ? o.low : o.low_, o.low != null ? o.high : o.high_, o.low != null ? o.unsigned : o.unsigned_),
+    MaxKey: () => new MaxKey(),
+    MinKey: () => new MinKey(),
+    ObjectId: (o) => new ObjectId(o),
+    BSONRegExp: (o) => new BSONRegExp(o.pattern, o.options),
+    BSONSymbol: (o) => new BSONSymbol(o.value),
+    Timestamp: (o) => Timestamp.fromBits(o.low, o.high)
+};
+function serializeDocument(doc, options) {
+    if (doc == null || typeof doc !== 'object')
+        throw new BSONError('not an object instance');
+    const bsontype = doc._bsontype;
+    if (typeof bsontype === 'undefined') {
+        const _doc = {};
+        for (const name of Object.keys(doc)) {
+            options.seenObjects.push({ propertyName: name, obj: null });
+            try {
+                const value = serializeValue(doc[name], options);
+                if (name === '__proto__') {
+                    Object.defineProperty(_doc, name, {
+                        value,
+                        writable: true,
+                        enumerable: true,
+                        configurable: true
+                    });
+                }
+                else {
+                    _doc[name] = value;
+                }
+            }
+            finally {
+                options.seenObjects.pop();
+            }
+        }
+        return _doc;
+    }
+    else if (doc != null &&
+        typeof doc === 'object' &&
+        typeof doc._bsontype === 'string' &&
+        doc[BSON_VERSION_SYMBOL] !== BSON_MAJOR_VERSION) {
+        throw new BSONVersionError();
+    }
+    else if (isBSONType(doc)) {
+        let outDoc = doc;
+        if (typeof outDoc.toExtendedJSON !== 'function') {
+            const mapper = BSON_TYPE_MAPPINGS[doc._bsontype];
+            if (!mapper) {
+                throw new BSONError('Unrecognized or invalid _bsontype: ' + doc._bsontype);
+            }
+            outDoc = mapper(outDoc);
+        }
+        if (bsontype === 'Code' && outDoc.scope) {
+            outDoc = new Code(outDoc.code, serializeValue(outDoc.scope, options));
+        }
+        else if (bsontype === 'DBRef' && outDoc.oid) {
+            outDoc = new DBRef(serializeValue(outDoc.collection, options), serializeValue(outDoc.oid, options), serializeValue(outDoc.db, options), serializeValue(outDoc.fields, options));
+        }
+        return outDoc.toExtendedJSON(options);
+    }
+    else {
+        throw new BSONError('_bsontype must be a string, but was: ' + typeof bsontype);
+    }
+}
+function parse(text, options) {
+    const ejsonOptions = {
+        useBigInt64: options?.useBigInt64 ?? false,
+        relaxed: options?.relaxed ?? true,
+        legacy: options?.legacy ?? false
+    };
+    return JSON.parse(text, (key, value) => {
+        if (key.indexOf('\x00') !== -1) {
+            throw new BSONError(`BSON Document field names cannot contain null bytes, found: ${JSON.stringify(key)}`);
+        }
+        return deserializeValue(value, ejsonOptions);
+    });
+}
+function stringify(value, replacer, space, options) {
+    if (space != null && typeof space === 'object') {
+        options = space;
+        space = 0;
+    }
+    if (replacer != null && typeof replacer === 'object' && !Array.isArray(replacer)) {
+        options = replacer;
+        replacer = undefined;
+        space = 0;
+    }
+    const serializeOptions = Object.assign({ relaxed: true, legacy: false }, options, {
+        seenObjects: [{ propertyName: '(root)', obj: null }]
+    });
+    const doc = serializeValue(value, serializeOptions);
+    return JSON.stringify(doc, replacer, space);
+}
+function EJSONserialize(value, options) {
+    options = options || {};
+    return JSON.parse(stringify(value, options));
+}
+function EJSONdeserialize(ejson, options) {
+    options = options || {};
+    return parse(JSON.stringify(ejson), options);
+}
+const EJSON = Object.create(null);
+EJSON.parse = parse;
+EJSON.stringify = stringify;
+EJSON.serialize = EJSONserialize;
+EJSON.deserialize = EJSONdeserialize;
+Object.freeze(EJSON);
+
+function getSize(source, offset) {
+    try {
+        return NumberUtils.getNonnegativeInt32LE(source, offset);
+    }
+    catch (cause) {
+        throw new BSONOffsetError('BSON size cannot be negative', offset, { cause });
+    }
+}
+function findNull(bytes, offset) {
+    let nullTerminatorOffset = offset;
+    for (; bytes[nullTerminatorOffset] !== 0x00; nullTerminatorOffset++)
+        ;
+    if (nullTerminatorOffset === bytes.length - 1) {
+        throw new BSONOffsetError('Null terminator not found', offset);
+    }
+    return nullTerminatorOffset;
+}
+function parseToElements(bytes, startOffset = 0) {
+    startOffset ??= 0;
+    if (bytes.length < 5) {
+        throw new BSONOffsetError(`Input must be at least 5 bytes, got ${bytes.length} bytes`, startOffset);
+    }
+    const documentSize = getSize(bytes, startOffset);
+    if (documentSize > bytes.length - startOffset) {
+        throw new BSONOffsetError(`Parsed documentSize (${documentSize} bytes) does not match input length (${bytes.length} bytes)`, startOffset);
+    }
+    if (bytes[startOffset + documentSize - 1] !== 0x00) {
+        throw new BSONOffsetError('BSON documents must end in 0x00', startOffset + documentSize);
+    }
+    const elements = [];
+    let offset = startOffset + 4;
+    while (offset <= documentSize + startOffset) {
+        const type = bytes[offset];
+        offset += 1;
+        if (type === 0) {
+            if (offset - startOffset !== documentSize) {
+                throw new BSONOffsetError(`Invalid 0x00 type byte`, offset);
+            }
+            break;
+        }
+        const nameOffset = offset;
+        const nameLength = findNull(bytes, offset) - nameOffset;
+        offset += nameLength + 1;
+        let length;
+        if (type === 1 ||
+            type === 18 ||
+            type === 9 ||
+            type === 17) {
+            length = 8;
+        }
+        else if (type === 16) {
+            length = 4;
+        }
+        else if (type === 7) {
+            length = 12;
+        }
+        else if (type === 19) {
+            length = 16;
+        }
+        else if (type === 8) {
+            length = 1;
+        }
+        else if (type === 10 ||
+            type === 6 ||
+            type === 127 ||
+            type === 255) {
+            length = 0;
+        }
+        else if (type === 11) {
+            length = findNull(bytes, findNull(bytes, offset) + 1) + 1 - offset;
+        }
+        else if (type === 3 ||
+            type === 4 ||
+            type === 15) {
+            length = getSize(bytes, offset);
+        }
+        else if (type === 2 ||
+            type === 5 ||
+            type === 12 ||
+            type === 13 ||
+            type === 14) {
+            length = getSize(bytes, offset) + 4;
+            if (type === 5) {
+                length += 1;
+            }
+            if (type === 12) {
+                length += 12;
+            }
+        }
+        else {
+            throw new BSONOffsetError(`Invalid 0x${type.toString(16).padStart(2, '0')} type byte`, offset);
+        }
+        if (length > documentSize) {
+            throw new BSONOffsetError('value reports length larger than document', offset);
+        }
+        elements.push([type, nameOffset, nameLength, offset, length]);
+        offset += length;
+    }
+    return elements;
+}
+
+const onDemand = Object.create(null);
+onDemand.parseToElements = parseToElements;
+onDemand.ByteUtils = ByteUtils;
+onDemand.NumberUtils = NumberUtils;
+Object.freeze(onDemand);
+
+const MAXSIZE = 1024 * 1024 * 17;
+let buffer = ByteUtils.allocate(MAXSIZE);
+function setInternalBufferSize(size) {
+    if (buffer.length < size) {
+        buffer = ByteUtils.allocate(size);
+    }
+}
+function serialize(object, options = {}) {
+    const checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false;
+    const serializeFunctions = typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false;
+    const ignoreUndefined = typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true;
+    const minInternalBufferSize = typeof options.minInternalBufferSize === 'number' ? options.minInternalBufferSize : MAXSIZE;
+    if (buffer.length < minInternalBufferSize) {
+        buffer = ByteUtils.allocate(minInternalBufferSize);
+    }
+    const serializationIndex = serializeInto(buffer, object, checkKeys, 0, 0, serializeFunctions, ignoreUndefined, null);
+    const finishedBuffer = ByteUtils.allocateUnsafe(serializationIndex);
+    finishedBuffer.set(buffer.subarray(0, serializationIndex), 0);
+    return finishedBuffer;
+}
+function serializeWithBufferAndIndex(object, finalBuffer, options = {}) {
+    const checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false;
+    const serializeFunctions = typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false;
+    const ignoreUndefined = typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true;
+    const startIndex = typeof options.index === 'number' ? options.index : 0;
+    const serializationIndex = serializeInto(buffer, object, checkKeys, 0, 0, serializeFunctions, ignoreUndefined, null);
+    finalBuffer.set(buffer.subarray(0, serializationIndex), startIndex);
+    return startIndex + serializationIndex - 1;
+}
+function deserialize(buffer, options = {}) {
+    return internalDeserialize(ByteUtils.toLocalBufferType(buffer), options);
+}
+function calculateObjectSize(object, options = {}) {
+    options = options || {};
+    const serializeFunctions = typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false;
+    const ignoreUndefined = typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true;
+    return internalCalculateObjectSize(object, serializeFunctions, ignoreUndefined);
+}
+function deserializeStream(data, startIndex, numberOfDocuments, documents, docStartIndex, options) {
+    const internalOptions = Object.assign({ allowObjectSmallerThanBufferSize: true, index: 0 }, options);
+    const bufferData = ByteUtils.toLocalBufferType(data);
+    let index = startIndex;
+    for (let i = 0; i < numberOfDocuments; i++) {
+        const size = NumberUtils.getInt32LE(bufferData, index);
+        internalOptions.index = index;
+        documents[docStartIndex + i] = internalDeserialize(bufferData, internalOptions);
+        index = index + size;
+    }
+    return index;
+}
+
+var bson = /*#__PURE__*/Object.freeze({
+    __proto__: null,
+    BSONError: BSONError,
+    BSONOffsetError: BSONOffsetError,
+    BSONRegExp: BSONRegExp,
+    BSONRuntimeError: BSONRuntimeError,
+    BSONSymbol: BSONSymbol,
+    BSONType: BSONType,
+    BSONValue: BSONValue,
+    BSONVersionError: BSONVersionError,
+    Binary: Binary,
+    Code: Code,
+    DBRef: DBRef,
+    Decimal128: Decimal128,
+    Double: Double,
+    EJSON: EJSON,
+    Int32: Int32,
+    Long: Long,
+    MaxKey: MaxKey,
+    MinKey: MinKey,
+    ObjectId: ObjectId,
+    Timestamp: Timestamp,
+    UUID: UUID,
+    calculateObjectSize: calculateObjectSize,
+    deserialize: deserialize,
+    deserializeStream: deserializeStream,
+    onDemand: onDemand,
+    serialize: serialize,
+    serializeWithBufferAndIndex: serializeWithBufferAndIndex,
+    setInternalBufferSize: setInternalBufferSize
+});
+
+export { bson as BSON, BSONError, BSONOffsetError, BSONRegExp, BSONRuntimeError, BSONSymbol, BSONType, BSONValue, BSONVersionError, Binary, Code, DBRef, Decimal128, Double, EJSON, Int32, Long, MaxKey, MinKey, ObjectId, Timestamp, UUID, calculateObjectSize, deserialize, deserializeStream, onDemand, serialize, serializeWithBufferAndIndex, setInternalBufferSize };
+//# sourceMappingURL=bson.mjs.map
diff --git a/backend/node_modules/bson/lib/bson.mjs.map b/backend/node_modules/bson/lib/bson.mjs.map
new file mode 100644
index 0000000..5d772b9
--- /dev/null
+++ b/backend/node_modules/bson/lib/bson.mjs.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/bson/lib/bson.rn.cjs b/backend/node_modules/bson/lib/bson.rn.cjs
new file mode 100644
index 0000000..61bc599
--- /dev/null
+++ b/backend/node_modules/bson/lib/bson.rn.cjs
@@ -0,0 +1,4605 @@
+'use strict';
+
+const TypedArrayPrototypeGetSymbolToStringTag = (() => {
+    const g = Object.getOwnPropertyDescriptor(Object.getPrototypeOf(Uint8Array.prototype), Symbol.toStringTag).get;
+    return (value) => g.call(value);
+})();
+function isUint8Array(value) {
+    return TypedArrayPrototypeGetSymbolToStringTag(value) === 'Uint8Array';
+}
+function isAnyArrayBuffer(value) {
+    return (typeof value === 'object' &&
+        value != null &&
+        Symbol.toStringTag in value &&
+        (value[Symbol.toStringTag] === 'ArrayBuffer' ||
+            value[Symbol.toStringTag] === 'SharedArrayBuffer'));
+}
+function isRegExp(regexp) {
+    return regexp instanceof RegExp || Object.prototype.toString.call(regexp) === '[object RegExp]';
+}
+function isMap(value) {
+    return (typeof value === 'object' &&
+        value != null &&
+        Symbol.toStringTag in value &&
+        value[Symbol.toStringTag] === 'Map');
+}
+function isDate(date) {
+    return date instanceof Date || Object.prototype.toString.call(date) === '[object Date]';
+}
+function defaultInspect(x, _options) {
+    return JSON.stringify(x, (k, v) => {
+        if (typeof v === 'bigint') {
+            return { $numberLong: `${v}` };
+        }
+        else if (isMap(v)) {
+            return Object.fromEntries(v);
+        }
+        return v;
+    });
+}
+function getStylizeFunction(options) {
+    const stylizeExists = options != null &&
+        typeof options === 'object' &&
+        'stylize' in options &&
+        typeof options.stylize === 'function';
+    if (stylizeExists) {
+        return options.stylize;
+    }
+}
+
+const BSON_MAJOR_VERSION = 6;
+const BSON_VERSION_SYMBOL = Symbol.for('@@mdb.bson.version');
+const BSON_INT32_MAX = 0x7fffffff;
+const BSON_INT32_MIN = -0x80000000;
+const BSON_INT64_MAX = Math.pow(2, 63) - 1;
+const BSON_INT64_MIN = -Math.pow(2, 63);
+const JS_INT_MAX = Math.pow(2, 53);
+const JS_INT_MIN = -Math.pow(2, 53);
+const BSON_DATA_NUMBER = 1;
+const BSON_DATA_STRING = 2;
+const BSON_DATA_OBJECT = 3;
+const BSON_DATA_ARRAY = 4;
+const BSON_DATA_BINARY = 5;
+const BSON_DATA_UNDEFINED = 6;
+const BSON_DATA_OID = 7;
+const BSON_DATA_BOOLEAN = 8;
+const BSON_DATA_DATE = 9;
+const BSON_DATA_NULL = 10;
+const BSON_DATA_REGEXP = 11;
+const BSON_DATA_DBPOINTER = 12;
+const BSON_DATA_CODE = 13;
+const BSON_DATA_SYMBOL = 14;
+const BSON_DATA_CODE_W_SCOPE = 15;
+const BSON_DATA_INT = 16;
+const BSON_DATA_TIMESTAMP = 17;
+const BSON_DATA_LONG = 18;
+const BSON_DATA_DECIMAL128 = 19;
+const BSON_DATA_MIN_KEY = 0xff;
+const BSON_DATA_MAX_KEY = 0x7f;
+const BSON_BINARY_SUBTYPE_DEFAULT = 0;
+const BSON_BINARY_SUBTYPE_FUNCTION = 1;
+const BSON_BINARY_SUBTYPE_BYTE_ARRAY = 2;
+const BSON_BINARY_SUBTYPE_UUID = 3;
+const BSON_BINARY_SUBTYPE_UUID_NEW = 4;
+const BSON_BINARY_SUBTYPE_MD5 = 5;
+const BSON_BINARY_SUBTYPE_ENCRYPTED = 6;
+const BSON_BINARY_SUBTYPE_COLUMN = 7;
+const BSON_BINARY_SUBTYPE_SENSITIVE = 8;
+const BSON_BINARY_SUBTYPE_USER_DEFINED = 128;
+const BSONType = Object.freeze({
+    double: 1,
+    string: 2,
+    object: 3,
+    array: 4,
+    binData: 5,
+    undefined: 6,
+    objectId: 7,
+    bool: 8,
+    date: 9,
+    null: 10,
+    regex: 11,
+    dbPointer: 12,
+    javascript: 13,
+    symbol: 14,
+    javascriptWithScope: 15,
+    int: 16,
+    timestamp: 17,
+    long: 18,
+    decimal: 19,
+    minKey: -1,
+    maxKey: 127
+});
+
+class BSONError extends Error {
+    get bsonError() {
+        return true;
+    }
+    get name() {
+        return 'BSONError';
+    }
+    constructor(message, options) {
+        super(message, options);
+    }
+    static isBSONError(value) {
+        return (value != null &&
+            typeof value === 'object' &&
+            'bsonError' in value &&
+            value.bsonError === true &&
+            'name' in value &&
+            'message' in value &&
+            'stack' in value);
+    }
+}
+class BSONVersionError extends BSONError {
+    get name() {
+        return 'BSONVersionError';
+    }
+    constructor() {
+        super(`Unsupported BSON version, bson types must be from bson ${BSON_MAJOR_VERSION}.x.x`);
+    }
+}
+class BSONRuntimeError extends BSONError {
+    get name() {
+        return 'BSONRuntimeError';
+    }
+    constructor(message) {
+        super(message);
+    }
+}
+class BSONOffsetError extends BSONError {
+    get name() {
+        return 'BSONOffsetError';
+    }
+    constructor(message, offset, options) {
+        super(`${message}. offset: ${offset}`, options);
+        this.offset = offset;
+    }
+}
+
+const { TextDecoder } = require('../vendor/text-encoding');
+let TextDecoderFatal;
+let TextDecoderNonFatal;
+function parseUtf8(buffer, start, end, fatal) {
+    if (fatal) {
+        TextDecoderFatal ??= new TextDecoder('utf8', { fatal: true });
+        try {
+            return TextDecoderFatal.decode(buffer.subarray(start, end));
+        }
+        catch (cause) {
+            throw new BSONError('Invalid UTF-8 string in BSON document', { cause });
+        }
+    }
+    TextDecoderNonFatal ??= new TextDecoder('utf8', { fatal: false });
+    return TextDecoderNonFatal.decode(buffer.subarray(start, end));
+}
+
+function tryReadBasicLatin(uint8array, start, end) {
+    if (uint8array.length === 0) {
+        return '';
+    }
+    const stringByteLength = end - start;
+    if (stringByteLength === 0) {
+        return '';
+    }
+    if (stringByteLength > 20) {
+        return null;
+    }
+    if (stringByteLength === 1 && uint8array[start] < 128) {
+        return String.fromCharCode(uint8array[start]);
+    }
+    if (stringByteLength === 2 && uint8array[start] < 128 && uint8array[start + 1] < 128) {
+        return String.fromCharCode(uint8array[start]) + String.fromCharCode(uint8array[start + 1]);
+    }
+    if (stringByteLength === 3 &&
+        uint8array[start] < 128 &&
+        uint8array[start + 1] < 128 &&
+        uint8array[start + 2] < 128) {
+        return (String.fromCharCode(uint8array[start]) +
+            String.fromCharCode(uint8array[start + 1]) +
+            String.fromCharCode(uint8array[start + 2]));
+    }
+    const latinBytes = [];
+    for (let i = start; i < end; i++) {
+        const byte = uint8array[i];
+        if (byte > 127) {
+            return null;
+        }
+        latinBytes.push(byte);
+    }
+    return String.fromCharCode(...latinBytes);
+}
+function tryWriteBasicLatin(destination, source, offset) {
+    if (source.length === 0)
+        return 0;
+    if (source.length > 25)
+        return null;
+    if (destination.length - offset < source.length)
+        return null;
+    for (let charOffset = 0, destinationOffset = offset; charOffset < source.length; charOffset++, destinationOffset++) {
+        const char = source.charCodeAt(charOffset);
+        if (char > 127)
+            return null;
+        destination[destinationOffset] = char;
+    }
+    return source.length;
+}
+
+function nodejsMathRandomBytes(byteLength) {
+    return nodeJsByteUtils.fromNumberArray(Array.from({ length: byteLength }, () => Math.floor(Math.random() * 256)));
+}
+const nodejsRandomBytes = (() => {
+    try {
+        return require('crypto').randomBytes;
+    }
+    catch {
+        return nodejsMathRandomBytes;
+    }
+})();
+const nodeJsByteUtils = {
+    toLocalBufferType(potentialBuffer) {
+        if (Buffer.isBuffer(potentialBuffer)) {
+            return potentialBuffer;
+        }
+        if (ArrayBuffer.isView(potentialBuffer)) {
+            return Buffer.from(potentialBuffer.buffer, potentialBuffer.byteOffset, potentialBuffer.byteLength);
+        }
+        const stringTag = potentialBuffer?.[Symbol.toStringTag] ?? Object.prototype.toString.call(potentialBuffer);
+        if (stringTag === 'ArrayBuffer' ||
+            stringTag === 'SharedArrayBuffer' ||
+            stringTag === '[object ArrayBuffer]' ||
+            stringTag === '[object SharedArrayBuffer]') {
+            return Buffer.from(potentialBuffer);
+        }
+        throw new BSONError(`Cannot create Buffer from the passed potentialBuffer.`);
+    },
+    allocate(size) {
+        return Buffer.alloc(size);
+    },
+    allocateUnsafe(size) {
+        return Buffer.allocUnsafe(size);
+    },
+    equals(a, b) {
+        return nodeJsByteUtils.toLocalBufferType(a).equals(b);
+    },
+    fromNumberArray(array) {
+        return Buffer.from(array);
+    },
+    fromBase64(base64) {
+        return Buffer.from(base64, 'base64');
+    },
+    toBase64(buffer) {
+        return nodeJsByteUtils.toLocalBufferType(buffer).toString('base64');
+    },
+    fromISO88591(codePoints) {
+        return Buffer.from(codePoints, 'binary');
+    },
+    toISO88591(buffer) {
+        return nodeJsByteUtils.toLocalBufferType(buffer).toString('binary');
+    },
+    fromHex(hex) {
+        return Buffer.from(hex, 'hex');
+    },
+    toHex(buffer) {
+        return nodeJsByteUtils.toLocalBufferType(buffer).toString('hex');
+    },
+    toUTF8(buffer, start, end, fatal) {
+        const basicLatin = end - start <= 20 ? tryReadBasicLatin(buffer, start, end) : null;
+        if (basicLatin != null) {
+            return basicLatin;
+        }
+        const string = nodeJsByteUtils.toLocalBufferType(buffer).toString('utf8', start, end);
+        if (fatal) {
+            for (let i = 0; i < string.length; i++) {
+                if (string.charCodeAt(i) === 0xfffd) {
+                    parseUtf8(buffer, start, end, true);
+                    break;
+                }
+            }
+        }
+        return string;
+    },
+    utf8ByteLength(input) {
+        return Buffer.byteLength(input, 'utf8');
+    },
+    encodeUTF8Into(buffer, source, byteOffset) {
+        const latinBytesWritten = tryWriteBasicLatin(buffer, source, byteOffset);
+        if (latinBytesWritten != null) {
+            return latinBytesWritten;
+        }
+        return nodeJsByteUtils.toLocalBufferType(buffer).write(source, byteOffset, undefined, 'utf8');
+    },
+    randomBytes: nodejsRandomBytes,
+    swap32(buffer) {
+        return nodeJsByteUtils.toLocalBufferType(buffer).swap32();
+    }
+};
+
+const { TextEncoder } = require('../vendor/text-encoding');
+const { encode: btoa, decode: atob } = require('../vendor/base64');
+function isReactNative() {
+    const { navigator } = globalThis;
+    return typeof navigator === 'object' && navigator.product === 'ReactNative';
+}
+function webMathRandomBytes(byteLength) {
+    if (byteLength < 0) {
+        throw new RangeError(`The argument 'byteLength' is invalid. Received ${byteLength}`);
+    }
+    return webByteUtils.fromNumberArray(Array.from({ length: byteLength }, () => Math.floor(Math.random() * 256)));
+}
+const webRandomBytes = (() => {
+    const { crypto } = globalThis;
+    if (crypto != null && typeof crypto.getRandomValues === 'function') {
+        return (byteLength) => {
+            return crypto.getRandomValues(webByteUtils.allocate(byteLength));
+        };
+    }
+    else {
+        if (isReactNative()) {
+            const { console } = globalThis;
+            console?.warn?.('BSON: For React Native please polyfill crypto.getRandomValues, e.g. using: https://www.npmjs.com/package/react-native-get-random-values.');
+        }
+        return webMathRandomBytes;
+    }
+})();
+const HEX_DIGIT = /(\d|[a-f])/i;
+const webByteUtils = {
+    toLocalBufferType(potentialUint8array) {
+        const stringTag = potentialUint8array?.[Symbol.toStringTag] ??
+            Object.prototype.toString.call(potentialUint8array);
+        if (stringTag === 'Uint8Array') {
+            return potentialUint8array;
+        }
+        if (ArrayBuffer.isView(potentialUint8array)) {
+            return new Uint8Array(potentialUint8array.buffer.slice(potentialUint8array.byteOffset, potentialUint8array.byteOffset + potentialUint8array.byteLength));
+        }
+        if (stringTag === 'ArrayBuffer' ||
+            stringTag === 'SharedArrayBuffer' ||
+            stringTag === '[object ArrayBuffer]' ||
+            stringTag === '[object SharedArrayBuffer]') {
+            return new Uint8Array(potentialUint8array);
+        }
+        throw new BSONError(`Cannot make a Uint8Array from passed potentialBuffer.`);
+    },
+    allocate(size) {
+        if (typeof size !== 'number') {
+            throw new TypeError(`The "size" argument must be of type number. Received ${String(size)}`);
+        }
+        return new Uint8Array(size);
+    },
+    allocateUnsafe(size) {
+        return webByteUtils.allocate(size);
+    },
+    equals(a, b) {
+        if (a.byteLength !== b.byteLength) {
+            return false;
+        }
+        for (let i = 0; i < a.byteLength; i++) {
+            if (a[i] !== b[i]) {
+                return false;
+            }
+        }
+        return true;
+    },
+    fromNumberArray(array) {
+        return Uint8Array.from(array);
+    },
+    fromBase64(base64) {
+        return Uint8Array.from(atob(base64), c => c.charCodeAt(0));
+    },
+    toBase64(uint8array) {
+        return btoa(webByteUtils.toISO88591(uint8array));
+    },
+    fromISO88591(codePoints) {
+        return Uint8Array.from(codePoints, c => c.charCodeAt(0) & 0xff);
+    },
+    toISO88591(uint8array) {
+        return Array.from(Uint16Array.from(uint8array), b => String.fromCharCode(b)).join('');
+    },
+    fromHex(hex) {
+        const evenLengthHex = hex.length % 2 === 0 ? hex : hex.slice(0, hex.length - 1);
+        const buffer = [];
+        for (let i = 0; i < evenLengthHex.length; i += 2) {
+            const firstDigit = evenLengthHex[i];
+            const secondDigit = evenLengthHex[i + 1];
+            if (!HEX_DIGIT.test(firstDigit)) {
+                break;
+            }
+            if (!HEX_DIGIT.test(secondDigit)) {
+                break;
+            }
+            const hexDigit = Number.parseInt(`${firstDigit}${secondDigit}`, 16);
+            buffer.push(hexDigit);
+        }
+        return Uint8Array.from(buffer);
+    },
+    toHex(uint8array) {
+        return Array.from(uint8array, byte => byte.toString(16).padStart(2, '0')).join('');
+    },
+    toUTF8(uint8array, start, end, fatal) {
+        const basicLatin = end - start <= 20 ? tryReadBasicLatin(uint8array, start, end) : null;
+        if (basicLatin != null) {
+            return basicLatin;
+        }
+        return parseUtf8(uint8array, start, end, fatal);
+    },
+    utf8ByteLength(input) {
+        return new TextEncoder().encode(input).byteLength;
+    },
+    encodeUTF8Into(uint8array, source, byteOffset) {
+        const bytes = new TextEncoder().encode(source);
+        uint8array.set(bytes, byteOffset);
+        return bytes.byteLength;
+    },
+    randomBytes: webRandomBytes,
+    swap32(buffer) {
+        if (buffer.length % 4 !== 0) {
+            throw new RangeError('Buffer size must be a multiple of 32-bits');
+        }
+        for (let i = 0; i < buffer.length; i += 4) {
+            const byte0 = buffer[i];
+            const byte1 = buffer[i + 1];
+            const byte2 = buffer[i + 2];
+            const byte3 = buffer[i + 3];
+            buffer[i] = byte3;
+            buffer[i + 1] = byte2;
+            buffer[i + 2] = byte1;
+            buffer[i + 3] = byte0;
+        }
+        return buffer;
+    }
+};
+
+const hasGlobalBuffer = typeof Buffer === 'function' && Buffer.prototype?._isBuffer !== true;
+const ByteUtils = hasGlobalBuffer ? nodeJsByteUtils : webByteUtils;
+
+class BSONValue {
+    get [BSON_VERSION_SYMBOL]() {
+        return BSON_MAJOR_VERSION;
+    }
+    [Symbol.for('nodejs.util.inspect.custom')](depth, options, inspect) {
+        return this.inspect(depth, options, inspect);
+    }
+}
+
+const FLOAT = new Float64Array(1);
+const FLOAT_BYTES = new Uint8Array(FLOAT.buffer, 0, 8);
+FLOAT[0] = -1;
+const isBigEndian = FLOAT_BYTES[7] === 0;
+const NumberUtils = {
+    isBigEndian,
+    getNonnegativeInt32LE(source, offset) {
+        if (source[offset + 3] > 127) {
+            throw new RangeError(`Size cannot be negative at offset: ${offset}`);
+        }
+        return (source[offset] |
+            (source[offset + 1] << 8) |
+            (source[offset + 2] << 16) |
+            (source[offset + 3] << 24));
+    },
+    getInt32LE(source, offset) {
+        return (source[offset] |
+            (source[offset + 1] << 8) |
+            (source[offset + 2] << 16) |
+            (source[offset + 3] << 24));
+    },
+    getUint32LE(source, offset) {
+        return (source[offset] +
+            source[offset + 1] * 256 +
+            source[offset + 2] * 65536 +
+            source[offset + 3] * 16777216);
+    },
+    getUint32BE(source, offset) {
+        return (source[offset + 3] +
+            source[offset + 2] * 256 +
+            source[offset + 1] * 65536 +
+            source[offset] * 16777216);
+    },
+    getBigInt64LE(source, offset) {
+        const lo = NumberUtils.getUint32LE(source, offset);
+        const hi = NumberUtils.getUint32LE(source, offset + 4);
+        return (BigInt(hi) << BigInt(32)) + BigInt(lo);
+    },
+    getFloat64LE: isBigEndian
+        ? (source, offset) => {
+            FLOAT_BYTES[7] = source[offset];
+            FLOAT_BYTES[6] = source[offset + 1];
+            FLOAT_BYTES[5] = source[offset + 2];
+            FLOAT_BYTES[4] = source[offset + 3];
+            FLOAT_BYTES[3] = source[offset + 4];
+            FLOAT_BYTES[2] = source[offset + 5];
+            FLOAT_BYTES[1] = source[offset + 6];
+            FLOAT_BYTES[0] = source[offset + 7];
+            return FLOAT[0];
+        }
+        : (source, offset) => {
+            FLOAT_BYTES[0] = source[offset];
+            FLOAT_BYTES[1] = source[offset + 1];
+            FLOAT_BYTES[2] = source[offset + 2];
+            FLOAT_BYTES[3] = source[offset + 3];
+            FLOAT_BYTES[4] = source[offset + 4];
+            FLOAT_BYTES[5] = source[offset + 5];
+            FLOAT_BYTES[6] = source[offset + 6];
+            FLOAT_BYTES[7] = source[offset + 7];
+            return FLOAT[0];
+        },
+    setInt32BE(destination, offset, value) {
+        destination[offset + 3] = value;
+        value >>>= 8;
+        destination[offset + 2] = value;
+        value >>>= 8;
+        destination[offset + 1] = value;
+        value >>>= 8;
+        destination[offset] = value;
+        return 4;
+    },
+    setInt32LE(destination, offset, value) {
+        destination[offset] = value;
+        value >>>= 8;
+        destination[offset + 1] = value;
+        value >>>= 8;
+        destination[offset + 2] = value;
+        value >>>= 8;
+        destination[offset + 3] = value;
+        return 4;
+    },
+    setBigInt64LE(destination, offset, value) {
+        const mask32bits = BigInt(0xffff_ffff);
+        let lo = Number(value & mask32bits);
+        destination[offset] = lo;
+        lo >>= 8;
+        destination[offset + 1] = lo;
+        lo >>= 8;
+        destination[offset + 2] = lo;
+        lo >>= 8;
+        destination[offset + 3] = lo;
+        let hi = Number((value >> BigInt(32)) & mask32bits);
+        destination[offset + 4] = hi;
+        hi >>= 8;
+        destination[offset + 5] = hi;
+        hi >>= 8;
+        destination[offset + 6] = hi;
+        hi >>= 8;
+        destination[offset + 7] = hi;
+        return 8;
+    },
+    setFloat64LE: isBigEndian
+        ? (destination, offset, value) => {
+            FLOAT[0] = value;
+            destination[offset] = FLOAT_BYTES[7];
+            destination[offset + 1] = FLOAT_BYTES[6];
+            destination[offset + 2] = FLOAT_BYTES[5];
+            destination[offset + 3] = FLOAT_BYTES[4];
+            destination[offset + 4] = FLOAT_BYTES[3];
+            destination[offset + 5] = FLOAT_BYTES[2];
+            destination[offset + 6] = FLOAT_BYTES[1];
+            destination[offset + 7] = FLOAT_BYTES[0];
+            return 8;
+        }
+        : (destination, offset, value) => {
+            FLOAT[0] = value;
+            destination[offset] = FLOAT_BYTES[0];
+            destination[offset + 1] = FLOAT_BYTES[1];
+            destination[offset + 2] = FLOAT_BYTES[2];
+            destination[offset + 3] = FLOAT_BYTES[3];
+            destination[offset + 4] = FLOAT_BYTES[4];
+            destination[offset + 5] = FLOAT_BYTES[5];
+            destination[offset + 6] = FLOAT_BYTES[6];
+            destination[offset + 7] = FLOAT_BYTES[7];
+            return 8;
+        }
+};
+
+class Binary extends BSONValue {
+    get _bsontype() {
+        return 'Binary';
+    }
+    constructor(buffer, subType) {
+        super();
+        if (!(buffer == null) &&
+            typeof buffer === 'string' &&
+            !ArrayBuffer.isView(buffer) &&
+            !isAnyArrayBuffer(buffer) &&
+            !Array.isArray(buffer)) {
+            throw new BSONError('Binary can only be constructed from Uint8Array or number[]');
+        }
+        this.sub_type = subType ?? Binary.BSON_BINARY_SUBTYPE_DEFAULT;
+        if (buffer == null) {
+            this.buffer = ByteUtils.allocate(Binary.BUFFER_SIZE);
+            this.position = 0;
+        }
+        else {
+            this.buffer = Array.isArray(buffer)
+                ? ByteUtils.fromNumberArray(buffer)
+                : ByteUtils.toLocalBufferType(buffer);
+            this.position = this.buffer.byteLength;
+        }
+    }
+    put(byteValue) {
+        if (typeof byteValue === 'string' && byteValue.length !== 1) {
+            throw new BSONError('only accepts single character String');
+        }
+        else if (typeof byteValue !== 'number' && byteValue.length !== 1)
+            throw new BSONError('only accepts single character Uint8Array or Array');
+        let decodedByte;
+        if (typeof byteValue === 'string') {
+            decodedByte = byteValue.charCodeAt(0);
+        }
+        else if (typeof byteValue === 'number') {
+            decodedByte = byteValue;
+        }
+        else {
+            decodedByte = byteValue[0];
+        }
+        if (decodedByte < 0 || decodedByte > 255) {
+            throw new BSONError('only accepts number in a valid unsigned byte range 0-255');
+        }
+        if (this.buffer.byteLength > this.position) {
+            this.buffer[this.position++] = decodedByte;
+        }
+        else {
+            const newSpace = ByteUtils.allocate(Binary.BUFFER_SIZE + this.buffer.length);
+            newSpace.set(this.buffer, 0);
+            this.buffer = newSpace;
+            this.buffer[this.position++] = decodedByte;
+        }
+    }
+    write(sequence, offset) {
+        offset = typeof offset === 'number' ? offset : this.position;
+        if (this.buffer.byteLength < offset + sequence.length) {
+            const newSpace = ByteUtils.allocate(this.buffer.byteLength + sequence.length);
+            newSpace.set(this.buffer, 0);
+            this.buffer = newSpace;
+        }
+        if (ArrayBuffer.isView(sequence)) {
+            this.buffer.set(ByteUtils.toLocalBufferType(sequence), offset);
+            this.position =
+                offset + sequence.byteLength > this.position ? offset + sequence.length : this.position;
+        }
+        else if (typeof sequence === 'string') {
+            throw new BSONError('input cannot be string');
+        }
+    }
+    read(position, length) {
+        length = length && length > 0 ? length : this.position;
+        const end = position + length;
+        return this.buffer.subarray(position, end > this.position ? this.position : end);
+    }
+    value() {
+        return this.buffer.length === this.position
+            ? this.buffer
+            : this.buffer.subarray(0, this.position);
+    }
+    length() {
+        return this.position;
+    }
+    toJSON() {
+        return ByteUtils.toBase64(this.buffer.subarray(0, this.position));
+    }
+    toString(encoding) {
+        if (encoding === 'hex')
+            return ByteUtils.toHex(this.buffer.subarray(0, this.position));
+        if (encoding === 'base64')
+            return ByteUtils.toBase64(this.buffer.subarray(0, this.position));
+        if (encoding === 'utf8' || encoding === 'utf-8')
+            return ByteUtils.toUTF8(this.buffer, 0, this.position, false);
+        return ByteUtils.toUTF8(this.buffer, 0, this.position, false);
+    }
+    toExtendedJSON(options) {
+        options = options || {};
+        if (this.sub_type === Binary.SUBTYPE_VECTOR) {
+            validateBinaryVector(this);
+        }
+        const base64String = ByteUtils.toBase64(this.buffer);
+        const subType = Number(this.sub_type).toString(16);
+        if (options.legacy) {
+            return {
+                $binary: base64String,
+                $type: subType.length === 1 ? '0' + subType : subType
+            };
+        }
+        return {
+            $binary: {
+                base64: base64String,
+                subType: subType.length === 1 ? '0' + subType : subType
+            }
+        };
+    }
+    toUUID() {
+        if (this.sub_type === Binary.SUBTYPE_UUID) {
+            return new UUID(this.buffer.subarray(0, this.position));
+        }
+        throw new BSONError(`Binary sub_type "${this.sub_type}" is not supported for converting to UUID. Only "${Binary.SUBTYPE_UUID}" is currently supported.`);
+    }
+    static createFromHexString(hex, subType) {
+        return new Binary(ByteUtils.fromHex(hex), subType);
+    }
+    static createFromBase64(base64, subType) {
+        return new Binary(ByteUtils.fromBase64(base64), subType);
+    }
+    static fromExtendedJSON(doc, options) {
+        options = options || {};
+        let data;
+        let type;
+        if ('$binary' in doc) {
+            if (options.legacy && typeof doc.$binary === 'string' && '$type' in doc) {
+                type = doc.$type ? parseInt(doc.$type, 16) : 0;
+                data = ByteUtils.fromBase64(doc.$binary);
+            }
+            else {
+                if (typeof doc.$binary !== 'string') {
+                    type = doc.$binary.subType ? parseInt(doc.$binary.subType, 16) : 0;
+                    data = ByteUtils.fromBase64(doc.$binary.base64);
+                }
+            }
+        }
+        else if ('$uuid' in doc) {
+            type = 4;
+            data = UUID.bytesFromString(doc.$uuid);
+        }
+        if (!data) {
+            throw new BSONError(`Unexpected Binary Extended JSON format ${JSON.stringify(doc)}`);
+        }
+        return type === BSON_BINARY_SUBTYPE_UUID_NEW ? new UUID(data) : new Binary(data, type);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        const base64 = ByteUtils.toBase64(this.buffer.subarray(0, this.position));
+        const base64Arg = inspect(base64, options);
+        const subTypeArg = inspect(this.sub_type, options);
+        return `Binary.createFromBase64(${base64Arg}, ${subTypeArg})`;
+    }
+    toInt8Array() {
+        if (this.sub_type !== Binary.SUBTYPE_VECTOR) {
+            throw new BSONError('Binary sub_type is not Vector');
+        }
+        if (this.buffer[0] !== Binary.VECTOR_TYPE.Int8) {
+            throw new BSONError('Binary datatype field is not Int8');
+        }
+        return new Int8Array(this.buffer.buffer.slice(this.buffer.byteOffset + 2, this.buffer.byteOffset + this.position));
+    }
+    toFloat32Array() {
+        if (this.sub_type !== Binary.SUBTYPE_VECTOR) {
+            throw new BSONError('Binary sub_type is not Vector');
+        }
+        if (this.buffer[0] !== Binary.VECTOR_TYPE.Float32) {
+            throw new BSONError('Binary datatype field is not Float32');
+        }
+        const floatBytes = new Uint8Array(this.buffer.buffer.slice(this.buffer.byteOffset + 2, this.buffer.byteOffset + this.position));
+        if (NumberUtils.isBigEndian)
+            ByteUtils.swap32(floatBytes);
+        return new Float32Array(floatBytes.buffer);
+    }
+    toPackedBits() {
+        if (this.sub_type !== Binary.SUBTYPE_VECTOR) {
+            throw new BSONError('Binary sub_type is not Vector');
+        }
+        if (this.buffer[0] !== Binary.VECTOR_TYPE.PackedBit) {
+            throw new BSONError('Binary datatype field is not packed bit');
+        }
+        return new Uint8Array(this.buffer.buffer.slice(this.buffer.byteOffset + 2, this.buffer.byteOffset + this.position));
+    }
+    toBits() {
+        if (this.sub_type !== Binary.SUBTYPE_VECTOR) {
+            throw new BSONError('Binary sub_type is not Vector');
+        }
+        if (this.buffer[0] !== Binary.VECTOR_TYPE.PackedBit) {
+            throw new BSONError('Binary datatype field is not packed bit');
+        }
+        const byteCount = this.length() - 2;
+        const bitCount = byteCount * 8 - this.buffer[1];
+        const bits = new Int8Array(bitCount);
+        for (let bitOffset = 0; bitOffset < bits.length; bitOffset++) {
+            const byteOffset = (bitOffset / 8) | 0;
+            const byte = this.buffer[byteOffset + 2];
+            const shift = 7 - (bitOffset % 8);
+            const bit = (byte >> shift) & 1;
+            bits[bitOffset] = bit;
+        }
+        return bits;
+    }
+    static fromInt8Array(array) {
+        const buffer = ByteUtils.allocate(array.byteLength + 2);
+        buffer[0] = Binary.VECTOR_TYPE.Int8;
+        buffer[1] = 0;
+        const intBytes = new Uint8Array(array.buffer, array.byteOffset, array.byteLength);
+        buffer.set(intBytes, 2);
+        return new this(buffer, this.SUBTYPE_VECTOR);
+    }
+    static fromFloat32Array(array) {
+        const binaryBytes = ByteUtils.allocate(array.byteLength + 2);
+        binaryBytes[0] = Binary.VECTOR_TYPE.Float32;
+        binaryBytes[1] = 0;
+        const floatBytes = new Uint8Array(array.buffer, array.byteOffset, array.byteLength);
+        binaryBytes.set(floatBytes, 2);
+        if (NumberUtils.isBigEndian)
+            ByteUtils.swap32(new Uint8Array(binaryBytes.buffer, 2));
+        return new this(binaryBytes, this.SUBTYPE_VECTOR);
+    }
+    static fromPackedBits(array, padding = 0) {
+        const buffer = ByteUtils.allocate(array.byteLength + 2);
+        buffer[0] = Binary.VECTOR_TYPE.PackedBit;
+        buffer[1] = padding;
+        buffer.set(array, 2);
+        return new this(buffer, this.SUBTYPE_VECTOR);
+    }
+    static fromBits(bits) {
+        const byteLength = (bits.length + 7) >>> 3;
+        const bytes = new Uint8Array(byteLength + 2);
+        bytes[0] = Binary.VECTOR_TYPE.PackedBit;
+        const remainder = bits.length % 8;
+        bytes[1] = remainder === 0 ? 0 : 8 - remainder;
+        for (let bitOffset = 0; bitOffset < bits.length; bitOffset++) {
+            const byteOffset = bitOffset >>> 3;
+            const bit = bits[bitOffset];
+            if (bit !== 0 && bit !== 1) {
+                throw new BSONError(`Invalid bit value at ${bitOffset}: must be 0 or 1, found ${bits[bitOffset]}`);
+            }
+            if (bit === 0)
+                continue;
+            const shift = 7 - (bitOffset % 8);
+            bytes[byteOffset + 2] |= bit << shift;
+        }
+        return new this(bytes, Binary.SUBTYPE_VECTOR);
+    }
+}
+Binary.BSON_BINARY_SUBTYPE_DEFAULT = 0;
+Binary.BUFFER_SIZE = 256;
+Binary.SUBTYPE_DEFAULT = 0;
+Binary.SUBTYPE_FUNCTION = 1;
+Binary.SUBTYPE_BYTE_ARRAY = 2;
+Binary.SUBTYPE_UUID_OLD = 3;
+Binary.SUBTYPE_UUID = 4;
+Binary.SUBTYPE_MD5 = 5;
+Binary.SUBTYPE_ENCRYPTED = 6;
+Binary.SUBTYPE_COLUMN = 7;
+Binary.SUBTYPE_SENSITIVE = 8;
+Binary.SUBTYPE_VECTOR = 9;
+Binary.SUBTYPE_USER_DEFINED = 128;
+Binary.VECTOR_TYPE = Object.freeze({
+    Int8: 0x03,
+    Float32: 0x27,
+    PackedBit: 0x10
+});
+function validateBinaryVector(vector) {
+    if (vector.sub_type !== Binary.SUBTYPE_VECTOR)
+        return;
+    const size = vector.position;
+    const datatype = vector.buffer[0];
+    const padding = vector.buffer[1];
+    if ((datatype === Binary.VECTOR_TYPE.Float32 || datatype === Binary.VECTOR_TYPE.Int8) &&
+        padding !== 0) {
+        throw new BSONError('Invalid Vector: padding must be zero for int8 and float32 vectors');
+    }
+    if (datatype === Binary.VECTOR_TYPE.PackedBit && padding !== 0 && size === 2) {
+        throw new BSONError('Invalid Vector: padding must be zero for packed bit vectors that are empty');
+    }
+    if (datatype === Binary.VECTOR_TYPE.PackedBit && padding > 7) {
+        throw new BSONError(`Invalid Vector: padding must be a value between 0 and 7. found: ${padding}`);
+    }
+}
+const UUID_BYTE_LENGTH = 16;
+const UUID_WITHOUT_DASHES = /^[0-9A-F]{32}$/i;
+const UUID_WITH_DASHES = /^[0-9A-F]{8}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{12}$/i;
+class UUID extends Binary {
+    constructor(input) {
+        let bytes;
+        if (input == null) {
+            bytes = UUID.generate();
+        }
+        else if (input instanceof UUID) {
+            bytes = ByteUtils.toLocalBufferType(new Uint8Array(input.buffer));
+        }
+        else if (ArrayBuffer.isView(input) && input.byteLength === UUID_BYTE_LENGTH) {
+            bytes = ByteUtils.toLocalBufferType(input);
+        }
+        else if (typeof input === 'string') {
+            bytes = UUID.bytesFromString(input);
+        }
+        else {
+            throw new BSONError('Argument passed in UUID constructor must be a UUID, a 16 byte Buffer or a 32/36 character hex string (dashes excluded/included, format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx).');
+        }
+        super(bytes, BSON_BINARY_SUBTYPE_UUID_NEW);
+    }
+    get id() {
+        return this.buffer;
+    }
+    set id(value) {
+        this.buffer = value;
+    }
+    toHexString(includeDashes = true) {
+        if (includeDashes) {
+            return [
+                ByteUtils.toHex(this.buffer.subarray(0, 4)),
+                ByteUtils.toHex(this.buffer.subarray(4, 6)),
+                ByteUtils.toHex(this.buffer.subarray(6, 8)),
+                ByteUtils.toHex(this.buffer.subarray(8, 10)),
+                ByteUtils.toHex(this.buffer.subarray(10, 16))
+            ].join('-');
+        }
+        return ByteUtils.toHex(this.buffer);
+    }
+    toString(encoding) {
+        if (encoding === 'hex')
+            return ByteUtils.toHex(this.id);
+        if (encoding === 'base64')
+            return ByteUtils.toBase64(this.id);
+        return this.toHexString();
+    }
+    toJSON() {
+        return this.toHexString();
+    }
+    equals(otherId) {
+        if (!otherId) {
+            return false;
+        }
+        if (otherId instanceof UUID) {
+            return ByteUtils.equals(otherId.id, this.id);
+        }
+        try {
+            return ByteUtils.equals(new UUID(otherId).id, this.id);
+        }
+        catch {
+            return false;
+        }
+    }
+    toBinary() {
+        return new Binary(this.id, Binary.SUBTYPE_UUID);
+    }
+    static generate() {
+        const bytes = ByteUtils.randomBytes(UUID_BYTE_LENGTH);
+        bytes[6] = (bytes[6] & 0x0f) | 0x40;
+        bytes[8] = (bytes[8] & 0x3f) | 0x80;
+        return bytes;
+    }
+    static isValid(input) {
+        if (!input) {
+            return false;
+        }
+        if (typeof input === 'string') {
+            return UUID.isValidUUIDString(input);
+        }
+        if (isUint8Array(input)) {
+            return input.byteLength === UUID_BYTE_LENGTH;
+        }
+        return (input._bsontype === 'Binary' &&
+            input.sub_type === this.SUBTYPE_UUID &&
+            input.buffer.byteLength === 16);
+    }
+    static createFromHexString(hexString) {
+        const buffer = UUID.bytesFromString(hexString);
+        return new UUID(buffer);
+    }
+    static createFromBase64(base64) {
+        return new UUID(ByteUtils.fromBase64(base64));
+    }
+    static bytesFromString(representation) {
+        if (!UUID.isValidUUIDString(representation)) {
+            throw new BSONError('UUID string representation must be 32 hex digits or canonical hyphenated representation');
+        }
+        return ByteUtils.fromHex(representation.replace(/-/g, ''));
+    }
+    static isValidUUIDString(representation) {
+        return UUID_WITHOUT_DASHES.test(representation) || UUID_WITH_DASHES.test(representation);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        return `new UUID(${inspect(this.toHexString(), options)})`;
+    }
+}
+
+class Code extends BSONValue {
+    get _bsontype() {
+        return 'Code';
+    }
+    constructor(code, scope) {
+        super();
+        this.code = code.toString();
+        this.scope = scope ?? null;
+    }
+    toJSON() {
+        if (this.scope != null) {
+            return { code: this.code, scope: this.scope };
+        }
+        return { code: this.code };
+    }
+    toExtendedJSON() {
+        if (this.scope) {
+            return { $code: this.code, $scope: this.scope };
+        }
+        return { $code: this.code };
+    }
+    static fromExtendedJSON(doc) {
+        return new Code(doc.$code, doc.$scope);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        let parametersString = inspect(this.code, options);
+        const multiLineFn = parametersString.includes('\n');
+        if (this.scope != null) {
+            parametersString += `,${multiLineFn ? '\n' : ' '}${inspect(this.scope, options)}`;
+        }
+        const endingNewline = multiLineFn && this.scope === null;
+        return `new Code(${multiLineFn ? '\n' : ''}${parametersString}${endingNewline ? '\n' : ''})`;
+    }
+}
+
+function isDBRefLike(value) {
+    return (value != null &&
+        typeof value === 'object' &&
+        '$id' in value &&
+        value.$id != null &&
+        '$ref' in value &&
+        typeof value.$ref === 'string' &&
+        (!('$db' in value) || ('$db' in value && typeof value.$db === 'string')));
+}
+class DBRef extends BSONValue {
+    get _bsontype() {
+        return 'DBRef';
+    }
+    constructor(collection, oid, db, fields) {
+        super();
+        const parts = collection.split('.');
+        if (parts.length === 2) {
+            db = parts.shift();
+            collection = parts.shift();
+        }
+        this.collection = collection;
+        this.oid = oid;
+        this.db = db;
+        this.fields = fields || {};
+    }
+    get namespace() {
+        return this.collection;
+    }
+    set namespace(value) {
+        this.collection = value;
+    }
+    toJSON() {
+        const o = Object.assign({
+            $ref: this.collection,
+            $id: this.oid
+        }, this.fields);
+        if (this.db != null)
+            o.$db = this.db;
+        return o;
+    }
+    toExtendedJSON(options) {
+        options = options || {};
+        let o = {
+            $ref: this.collection,
+            $id: this.oid
+        };
+        if (options.legacy) {
+            return o;
+        }
+        if (this.db)
+            o.$db = this.db;
+        o = Object.assign(o, this.fields);
+        return o;
+    }
+    static fromExtendedJSON(doc) {
+        const copy = Object.assign({}, doc);
+        delete copy.$ref;
+        delete copy.$id;
+        delete copy.$db;
+        return new DBRef(doc.$ref, doc.$id, doc.$db, copy);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        const args = [
+            inspect(this.namespace, options),
+            inspect(this.oid, options),
+            ...(this.db ? [inspect(this.db, options)] : []),
+            ...(Object.keys(this.fields).length > 0 ? [inspect(this.fields, options)] : [])
+        ];
+        args[1] = inspect === defaultInspect ? `new ObjectId(${args[1]})` : args[1];
+        return `new DBRef(${args.join(', ')})`;
+    }
+}
+
+function removeLeadingZerosAndExplicitPlus(str) {
+    if (str === '') {
+        return str;
+    }
+    let startIndex = 0;
+    const isNegative = str[startIndex] === '-';
+    const isExplicitlyPositive = str[startIndex] === '+';
+    if (isExplicitlyPositive || isNegative) {
+        startIndex += 1;
+    }
+    let foundInsignificantZero = false;
+    for (; startIndex < str.length && str[startIndex] === '0'; ++startIndex) {
+        foundInsignificantZero = true;
+    }
+    if (!foundInsignificantZero) {
+        return isExplicitlyPositive ? str.slice(1) : str;
+    }
+    return `${isNegative ? '-' : ''}${str.length === startIndex ? '0' : str.slice(startIndex)}`;
+}
+function validateStringCharacters(str, radix) {
+    radix = radix ?? 10;
+    const validCharacters = '0123456789abcdefghijklmnopqrstuvwxyz'.slice(0, radix);
+    const regex = new RegExp(`[^-+${validCharacters}]`, 'i');
+    return regex.test(str) ? false : str;
+}
+
+let wasm = undefined;
+try {
+    wasm = new WebAssembly.Instance(new WebAssembly.Module(new Uint8Array([0, 97, 115, 109, 1, 0, 0, 0, 1, 13, 2, 96, 0, 1, 127, 96, 4, 127, 127, 127, 127, 1, 127, 3, 7, 6, 0, 1, 1, 1, 1, 1, 6, 6, 1, 127, 1, 65, 0, 11, 7, 50, 6, 3, 109, 117, 108, 0, 1, 5, 100, 105, 118, 95, 115, 0, 2, 5, 100, 105, 118, 95, 117, 0, 3, 5, 114, 101, 109, 95, 115, 0, 4, 5, 114, 101, 109, 95, 117, 0, 5, 8, 103, 101, 116, 95, 104, 105, 103, 104, 0, 0, 10, 191, 1, 6, 4, 0, 35, 0, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 126, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 127, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 128, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 129, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 130, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11])), {}).exports;
+}
+catch {
+}
+const TWO_PWR_16_DBL = 1 << 16;
+const TWO_PWR_24_DBL = 1 << 24;
+const TWO_PWR_32_DBL = TWO_PWR_16_DBL * TWO_PWR_16_DBL;
+const TWO_PWR_64_DBL = TWO_PWR_32_DBL * TWO_PWR_32_DBL;
+const TWO_PWR_63_DBL = TWO_PWR_64_DBL / 2;
+const INT_CACHE = {};
+const UINT_CACHE = {};
+const MAX_INT64_STRING_LENGTH = 20;
+const DECIMAL_REG_EX = /^(\+?0|(\+|-)?[1-9][0-9]*)$/;
+class Long extends BSONValue {
+    get _bsontype() {
+        return 'Long';
+    }
+    get __isLong__() {
+        return true;
+    }
+    constructor(lowOrValue = 0, highOrUnsigned, unsigned) {
+        super();
+        const unsignedBool = typeof highOrUnsigned === 'boolean' ? highOrUnsigned : Boolean(unsigned);
+        const high = typeof highOrUnsigned === 'number' ? highOrUnsigned : 0;
+        const res = typeof lowOrValue === 'string'
+            ? Long.fromString(lowOrValue, unsignedBool)
+            : typeof lowOrValue === 'bigint'
+                ? Long.fromBigInt(lowOrValue, unsignedBool)
+                : { low: lowOrValue | 0, high: high | 0, unsigned: unsignedBool };
+        this.low = res.low;
+        this.high = res.high;
+        this.unsigned = res.unsigned;
+    }
+    static fromBits(lowBits, highBits, unsigned) {
+        return new Long(lowBits, highBits, unsigned);
+    }
+    static fromInt(value, unsigned) {
+        let obj, cachedObj, cache;
+        if (unsigned) {
+            value >>>= 0;
+            if ((cache = 0 <= value && value < 256)) {
+                cachedObj = UINT_CACHE[value];
+                if (cachedObj)
+                    return cachedObj;
+            }
+            obj = Long.fromBits(value, (value | 0) < 0 ? -1 : 0, true);
+            if (cache)
+                UINT_CACHE[value] = obj;
+            return obj;
+        }
+        else {
+            value |= 0;
+            if ((cache = -128 <= value && value < 128)) {
+                cachedObj = INT_CACHE[value];
+                if (cachedObj)
+                    return cachedObj;
+            }
+            obj = Long.fromBits(value, value < 0 ? -1 : 0, false);
+            if (cache)
+                INT_CACHE[value] = obj;
+            return obj;
+        }
+    }
+    static fromNumber(value, unsigned) {
+        if (isNaN(value))
+            return unsigned ? Long.UZERO : Long.ZERO;
+        if (unsigned) {
+            if (value < 0)
+                return Long.UZERO;
+            if (value >= TWO_PWR_64_DBL)
+                return Long.MAX_UNSIGNED_VALUE;
+        }
+        else {
+            if (value <= -TWO_PWR_63_DBL)
+                return Long.MIN_VALUE;
+            if (value + 1 >= TWO_PWR_63_DBL)
+                return Long.MAX_VALUE;
+        }
+        if (value < 0)
+            return Long.fromNumber(-value, unsigned).neg();
+        return Long.fromBits(value % TWO_PWR_32_DBL | 0, (value / TWO_PWR_32_DBL) | 0, unsigned);
+    }
+    static fromBigInt(value, unsigned) {
+        const FROM_BIGINT_BIT_MASK = BigInt(0xffffffff);
+        const FROM_BIGINT_BIT_SHIFT = BigInt(32);
+        return new Long(Number(value & FROM_BIGINT_BIT_MASK), Number((value >> FROM_BIGINT_BIT_SHIFT) & FROM_BIGINT_BIT_MASK), unsigned);
+    }
+    static _fromString(str, unsigned, radix) {
+        if (str.length === 0)
+            throw new BSONError('empty string');
+        if (radix < 2 || 36 < radix)
+            throw new BSONError('radix');
+        let p;
+        if ((p = str.indexOf('-')) > 0)
+            throw new BSONError('interior hyphen');
+        else if (p === 0) {
+            return Long._fromString(str.substring(1), unsigned, radix).neg();
+        }
+        const radixToPower = Long.fromNumber(Math.pow(radix, 8));
+        let result = Long.ZERO;
+        for (let i = 0; i < str.length; i += 8) {
+            const size = Math.min(8, str.length - i), value = parseInt(str.substring(i, i + size), radix);
+            if (size < 8) {
+                const power = Long.fromNumber(Math.pow(radix, size));
+                result = result.mul(power).add(Long.fromNumber(value));
+            }
+            else {
+                result = result.mul(radixToPower);
+                result = result.add(Long.fromNumber(value));
+            }
+        }
+        result.unsigned = unsigned;
+        return result;
+    }
+    static fromStringStrict(str, unsignedOrRadix, radix) {
+        let unsigned = false;
+        if (typeof unsignedOrRadix === 'number') {
+            (radix = unsignedOrRadix), (unsignedOrRadix = false);
+        }
+        else {
+            unsigned = !!unsignedOrRadix;
+        }
+        radix ??= 10;
+        if (str.trim() !== str) {
+            throw new BSONError(`Input: '${str}' contains leading and/or trailing whitespace`);
+        }
+        if (!validateStringCharacters(str, radix)) {
+            throw new BSONError(`Input: '${str}' contains invalid characters for radix: ${radix}`);
+        }
+        const cleanedStr = removeLeadingZerosAndExplicitPlus(str);
+        const result = Long._fromString(cleanedStr, unsigned, radix);
+        if (result.toString(radix).toLowerCase() !== cleanedStr.toLowerCase()) {
+            throw new BSONError(`Input: ${str} is not representable as ${result.unsigned ? 'an unsigned' : 'a signed'} 64-bit Long ${radix != null ? `with radix: ${radix}` : ''}`);
+        }
+        return result;
+    }
+    static fromString(str, unsignedOrRadix, radix) {
+        let unsigned = false;
+        if (typeof unsignedOrRadix === 'number') {
+            (radix = unsignedOrRadix), (unsignedOrRadix = false);
+        }
+        else {
+            unsigned = !!unsignedOrRadix;
+        }
+        radix ??= 10;
+        if (str === 'NaN' && radix < 24) {
+            return Long.ZERO;
+        }
+        else if ((str === 'Infinity' || str === '+Infinity' || str === '-Infinity') && radix < 35) {
+            return Long.ZERO;
+        }
+        return Long._fromString(str, unsigned, radix);
+    }
+    static fromBytes(bytes, unsigned, le) {
+        return le ? Long.fromBytesLE(bytes, unsigned) : Long.fromBytesBE(bytes, unsigned);
+    }
+    static fromBytesLE(bytes, unsigned) {
+        return new Long(bytes[0] | (bytes[1] << 8) | (bytes[2] << 16) | (bytes[3] << 24), bytes[4] | (bytes[5] << 8) | (bytes[6] << 16) | (bytes[7] << 24), unsigned);
+    }
+    static fromBytesBE(bytes, unsigned) {
+        return new Long((bytes[4] << 24) | (bytes[5] << 16) | (bytes[6] << 8) | bytes[7], (bytes[0] << 24) | (bytes[1] << 16) | (bytes[2] << 8) | bytes[3], unsigned);
+    }
+    static isLong(value) {
+        return (value != null &&
+            typeof value === 'object' &&
+            '__isLong__' in value &&
+            value.__isLong__ === true);
+    }
+    static fromValue(val, unsigned) {
+        if (typeof val === 'number')
+            return Long.fromNumber(val, unsigned);
+        if (typeof val === 'string')
+            return Long.fromString(val, unsigned);
+        return Long.fromBits(val.low, val.high, typeof unsigned === 'boolean' ? unsigned : val.unsigned);
+    }
+    add(addend) {
+        if (!Long.isLong(addend))
+            addend = Long.fromValue(addend);
+        const a48 = this.high >>> 16;
+        const a32 = this.high & 0xffff;
+        const a16 = this.low >>> 16;
+        const a00 = this.low & 0xffff;
+        const b48 = addend.high >>> 16;
+        const b32 = addend.high & 0xffff;
+        const b16 = addend.low >>> 16;
+        const b00 = addend.low & 0xffff;
+        let c48 = 0, c32 = 0, c16 = 0, c00 = 0;
+        c00 += a00 + b00;
+        c16 += c00 >>> 16;
+        c00 &= 0xffff;
+        c16 += a16 + b16;
+        c32 += c16 >>> 16;
+        c16 &= 0xffff;
+        c32 += a32 + b32;
+        c48 += c32 >>> 16;
+        c32 &= 0xffff;
+        c48 += a48 + b48;
+        c48 &= 0xffff;
+        return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned);
+    }
+    and(other) {
+        if (!Long.isLong(other))
+            other = Long.fromValue(other);
+        return Long.fromBits(this.low & other.low, this.high & other.high, this.unsigned);
+    }
+    compare(other) {
+        if (!Long.isLong(other))
+            other = Long.fromValue(other);
+        if (this.eq(other))
+            return 0;
+        const thisNeg = this.isNegative(), otherNeg = other.isNegative();
+        if (thisNeg && !otherNeg)
+            return -1;
+        if (!thisNeg && otherNeg)
+            return 1;
+        if (!this.unsigned)
+            return this.sub(other).isNegative() ? -1 : 1;
+        return other.high >>> 0 > this.high >>> 0 ||
+            (other.high === this.high && other.low >>> 0 > this.low >>> 0)
+            ? -1
+            : 1;
+    }
+    comp(other) {
+        return this.compare(other);
+    }
+    divide(divisor) {
+        if (!Long.isLong(divisor))
+            divisor = Long.fromValue(divisor);
+        if (divisor.isZero())
+            throw new BSONError('division by zero');
+        if (wasm) {
+            if (!this.unsigned &&
+                this.high === -0x80000000 &&
+                divisor.low === -1 &&
+                divisor.high === -1) {
+                return this;
+            }
+            const low = (this.unsigned ? wasm.div_u : wasm.div_s)(this.low, this.high, divisor.low, divisor.high);
+            return Long.fromBits(low, wasm.get_high(), this.unsigned);
+        }
+        if (this.isZero())
+            return this.unsigned ? Long.UZERO : Long.ZERO;
+        let approx, rem, res;
+        if (!this.unsigned) {
+            if (this.eq(Long.MIN_VALUE)) {
+                if (divisor.eq(Long.ONE) || divisor.eq(Long.NEG_ONE))
+                    return Long.MIN_VALUE;
+                else if (divisor.eq(Long.MIN_VALUE))
+                    return Long.ONE;
+                else {
+                    const halfThis = this.shr(1);
+                    approx = halfThis.div(divisor).shl(1);
+                    if (approx.eq(Long.ZERO)) {
+                        return divisor.isNegative() ? Long.ONE : Long.NEG_ONE;
+                    }
+                    else {
+                        rem = this.sub(divisor.mul(approx));
+                        res = approx.add(rem.div(divisor));
+                        return res;
+                    }
+                }
+            }
+            else if (divisor.eq(Long.MIN_VALUE))
+                return this.unsigned ? Long.UZERO : Long.ZERO;
+            if (this.isNegative()) {
+                if (divisor.isNegative())
+                    return this.neg().div(divisor.neg());
+                return this.neg().div(divisor).neg();
+            }
+            else if (divisor.isNegative())
+                return this.div(divisor.neg()).neg();
+            res = Long.ZERO;
+        }
+        else {
+            if (!divisor.unsigned)
+                divisor = divisor.toUnsigned();
+            if (divisor.gt(this))
+                return Long.UZERO;
+            if (divisor.gt(this.shru(1)))
+                return Long.UONE;
+            res = Long.UZERO;
+        }
+        rem = this;
+        while (rem.gte(divisor)) {
+            approx = Math.max(1, Math.floor(rem.toNumber() / divisor.toNumber()));
+            const log2 = Math.ceil(Math.log(approx) / Math.LN2);
+            const delta = log2 <= 48 ? 1 : Math.pow(2, log2 - 48);
+            let approxRes = Long.fromNumber(approx);
+            let approxRem = approxRes.mul(divisor);
+            while (approxRem.isNegative() || approxRem.gt(rem)) {
+                approx -= delta;
+                approxRes = Long.fromNumber(approx, this.unsigned);
+                approxRem = approxRes.mul(divisor);
+            }
+            if (approxRes.isZero())
+                approxRes = Long.ONE;
+            res = res.add(approxRes);
+            rem = rem.sub(approxRem);
+        }
+        return res;
+    }
+    div(divisor) {
+        return this.divide(divisor);
+    }
+    equals(other) {
+        if (!Long.isLong(other))
+            other = Long.fromValue(other);
+        if (this.unsigned !== other.unsigned && this.high >>> 31 === 1 && other.high >>> 31 === 1)
+            return false;
+        return this.high === other.high && this.low === other.low;
+    }
+    eq(other) {
+        return this.equals(other);
+    }
+    getHighBits() {
+        return this.high;
+    }
+    getHighBitsUnsigned() {
+        return this.high >>> 0;
+    }
+    getLowBits() {
+        return this.low;
+    }
+    getLowBitsUnsigned() {
+        return this.low >>> 0;
+    }
+    getNumBitsAbs() {
+        if (this.isNegative()) {
+            return this.eq(Long.MIN_VALUE) ? 64 : this.neg().getNumBitsAbs();
+        }
+        const val = this.high !== 0 ? this.high : this.low;
+        let bit;
+        for (bit = 31; bit > 0; bit--)
+            if ((val & (1 << bit)) !== 0)
+                break;
+        return this.high !== 0 ? bit + 33 : bit + 1;
+    }
+    greaterThan(other) {
+        return this.comp(other) > 0;
+    }
+    gt(other) {
+        return this.greaterThan(other);
+    }
+    greaterThanOrEqual(other) {
+        return this.comp(other) >= 0;
+    }
+    gte(other) {
+        return this.greaterThanOrEqual(other);
+    }
+    ge(other) {
+        return this.greaterThanOrEqual(other);
+    }
+    isEven() {
+        return (this.low & 1) === 0;
+    }
+    isNegative() {
+        return !this.unsigned && this.high < 0;
+    }
+    isOdd() {
+        return (this.low & 1) === 1;
+    }
+    isPositive() {
+        return this.unsigned || this.high >= 0;
+    }
+    isZero() {
+        return this.high === 0 && this.low === 0;
+    }
+    lessThan(other) {
+        return this.comp(other) < 0;
+    }
+    lt(other) {
+        return this.lessThan(other);
+    }
+    lessThanOrEqual(other) {
+        return this.comp(other) <= 0;
+    }
+    lte(other) {
+        return this.lessThanOrEqual(other);
+    }
+    modulo(divisor) {
+        if (!Long.isLong(divisor))
+            divisor = Long.fromValue(divisor);
+        if (wasm) {
+            const low = (this.unsigned ? wasm.rem_u : wasm.rem_s)(this.low, this.high, divisor.low, divisor.high);
+            return Long.fromBits(low, wasm.get_high(), this.unsigned);
+        }
+        return this.sub(this.div(divisor).mul(divisor));
+    }
+    mod(divisor) {
+        return this.modulo(divisor);
+    }
+    rem(divisor) {
+        return this.modulo(divisor);
+    }
+    multiply(multiplier) {
+        if (this.isZero())
+            return Long.ZERO;
+        if (!Long.isLong(multiplier))
+            multiplier = Long.fromValue(multiplier);
+        if (wasm) {
+            const low = wasm.mul(this.low, this.high, multiplier.low, multiplier.high);
+            return Long.fromBits(low, wasm.get_high(), this.unsigned);
+        }
+        if (multiplier.isZero())
+            return Long.ZERO;
+        if (this.eq(Long.MIN_VALUE))
+            return multiplier.isOdd() ? Long.MIN_VALUE : Long.ZERO;
+        if (multiplier.eq(Long.MIN_VALUE))
+            return this.isOdd() ? Long.MIN_VALUE : Long.ZERO;
+        if (this.isNegative()) {
+            if (multiplier.isNegative())
+                return this.neg().mul(multiplier.neg());
+            else
+                return this.neg().mul(multiplier).neg();
+        }
+        else if (multiplier.isNegative())
+            return this.mul(multiplier.neg()).neg();
+        if (this.lt(Long.TWO_PWR_24) && multiplier.lt(Long.TWO_PWR_24))
+            return Long.fromNumber(this.toNumber() * multiplier.toNumber(), this.unsigned);
+        const a48 = this.high >>> 16;
+        const a32 = this.high & 0xffff;
+        const a16 = this.low >>> 16;
+        const a00 = this.low & 0xffff;
+        const b48 = multiplier.high >>> 16;
+        const b32 = multiplier.high & 0xffff;
+        const b16 = multiplier.low >>> 16;
+        const b00 = multiplier.low & 0xffff;
+        let c48 = 0, c32 = 0, c16 = 0, c00 = 0;
+        c00 += a00 * b00;
+        c16 += c00 >>> 16;
+        c00 &= 0xffff;
+        c16 += a16 * b00;
+        c32 += c16 >>> 16;
+        c16 &= 0xffff;
+        c16 += a00 * b16;
+        c32 += c16 >>> 16;
+        c16 &= 0xffff;
+        c32 += a32 * b00;
+        c48 += c32 >>> 16;
+        c32 &= 0xffff;
+        c32 += a16 * b16;
+        c48 += c32 >>> 16;
+        c32 &= 0xffff;
+        c32 += a00 * b32;
+        c48 += c32 >>> 16;
+        c32 &= 0xffff;
+        c48 += a48 * b00 + a32 * b16 + a16 * b32 + a00 * b48;
+        c48 &= 0xffff;
+        return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned);
+    }
+    mul(multiplier) {
+        return this.multiply(multiplier);
+    }
+    negate() {
+        if (!this.unsigned && this.eq(Long.MIN_VALUE))
+            return Long.MIN_VALUE;
+        return this.not().add(Long.ONE);
+    }
+    neg() {
+        return this.negate();
+    }
+    not() {
+        return Long.fromBits(~this.low, ~this.high, this.unsigned);
+    }
+    notEquals(other) {
+        return !this.equals(other);
+    }
+    neq(other) {
+        return this.notEquals(other);
+    }
+    ne(other) {
+        return this.notEquals(other);
+    }
+    or(other) {
+        if (!Long.isLong(other))
+            other = Long.fromValue(other);
+        return Long.fromBits(this.low | other.low, this.high | other.high, this.unsigned);
+    }
+    shiftLeft(numBits) {
+        if (Long.isLong(numBits))
+            numBits = numBits.toInt();
+        if ((numBits &= 63) === 0)
+            return this;
+        else if (numBits < 32)
+            return Long.fromBits(this.low << numBits, (this.high << numBits) | (this.low >>> (32 - numBits)), this.unsigned);
+        else
+            return Long.fromBits(0, this.low << (numBits - 32), this.unsigned);
+    }
+    shl(numBits) {
+        return this.shiftLeft(numBits);
+    }
+    shiftRight(numBits) {
+        if (Long.isLong(numBits))
+            numBits = numBits.toInt();
+        if ((numBits &= 63) === 0)
+            return this;
+        else if (numBits < 32)
+            return Long.fromBits((this.low >>> numBits) | (this.high << (32 - numBits)), this.high >> numBits, this.unsigned);
+        else
+            return Long.fromBits(this.high >> (numBits - 32), this.high >= 0 ? 0 : -1, this.unsigned);
+    }
+    shr(numBits) {
+        return this.shiftRight(numBits);
+    }
+    shiftRightUnsigned(numBits) {
+        if (Long.isLong(numBits))
+            numBits = numBits.toInt();
+        numBits &= 63;
+        if (numBits === 0)
+            return this;
+        else {
+            const high = this.high;
+            if (numBits < 32) {
+                const low = this.low;
+                return Long.fromBits((low >>> numBits) | (high << (32 - numBits)), high >>> numBits, this.unsigned);
+            }
+            else if (numBits === 32)
+                return Long.fromBits(high, 0, this.unsigned);
+            else
+                return Long.fromBits(high >>> (numBits - 32), 0, this.unsigned);
+        }
+    }
+    shr_u(numBits) {
+        return this.shiftRightUnsigned(numBits);
+    }
+    shru(numBits) {
+        return this.shiftRightUnsigned(numBits);
+    }
+    subtract(subtrahend) {
+        if (!Long.isLong(subtrahend))
+            subtrahend = Long.fromValue(subtrahend);
+        return this.add(subtrahend.neg());
+    }
+    sub(subtrahend) {
+        return this.subtract(subtrahend);
+    }
+    toInt() {
+        return this.unsigned ? this.low >>> 0 : this.low;
+    }
+    toNumber() {
+        if (this.unsigned)
+            return (this.high >>> 0) * TWO_PWR_32_DBL + (this.low >>> 0);
+        return this.high * TWO_PWR_32_DBL + (this.low >>> 0);
+    }
+    toBigInt() {
+        return BigInt(this.toString());
+    }
+    toBytes(le) {
+        return le ? this.toBytesLE() : this.toBytesBE();
+    }
+    toBytesLE() {
+        const hi = this.high, lo = this.low;
+        return [
+            lo & 0xff,
+            (lo >>> 8) & 0xff,
+            (lo >>> 16) & 0xff,
+            lo >>> 24,
+            hi & 0xff,
+            (hi >>> 8) & 0xff,
+            (hi >>> 16) & 0xff,
+            hi >>> 24
+        ];
+    }
+    toBytesBE() {
+        const hi = this.high, lo = this.low;
+        return [
+            hi >>> 24,
+            (hi >>> 16) & 0xff,
+            (hi >>> 8) & 0xff,
+            hi & 0xff,
+            lo >>> 24,
+            (lo >>> 16) & 0xff,
+            (lo >>> 8) & 0xff,
+            lo & 0xff
+        ];
+    }
+    toSigned() {
+        if (!this.unsigned)
+            return this;
+        return Long.fromBits(this.low, this.high, false);
+    }
+    toString(radix) {
+        radix = radix || 10;
+        if (radix < 2 || 36 < radix)
+            throw new BSONError('radix');
+        if (this.isZero())
+            return '0';
+        if (this.isNegative()) {
+            if (this.eq(Long.MIN_VALUE)) {
+                const radixLong = Long.fromNumber(radix), div = this.div(radixLong), rem1 = div.mul(radixLong).sub(this);
+                return div.toString(radix) + rem1.toInt().toString(radix);
+            }
+            else
+                return '-' + this.neg().toString(radix);
+        }
+        const radixToPower = Long.fromNumber(Math.pow(radix, 6), this.unsigned);
+        let rem = this;
+        let result = '';
+        while (true) {
+            const remDiv = rem.div(radixToPower);
+            const intval = rem.sub(remDiv.mul(radixToPower)).toInt() >>> 0;
+            let digits = intval.toString(radix);
+            rem = remDiv;
+            if (rem.isZero()) {
+                return digits + result;
+            }
+            else {
+                while (digits.length < 6)
+                    digits = '0' + digits;
+                result = '' + digits + result;
+            }
+        }
+    }
+    toUnsigned() {
+        if (this.unsigned)
+            return this;
+        return Long.fromBits(this.low, this.high, true);
+    }
+    xor(other) {
+        if (!Long.isLong(other))
+            other = Long.fromValue(other);
+        return Long.fromBits(this.low ^ other.low, this.high ^ other.high, this.unsigned);
+    }
+    eqz() {
+        return this.isZero();
+    }
+    le(other) {
+        return this.lessThanOrEqual(other);
+    }
+    toExtendedJSON(options) {
+        if (options && options.relaxed)
+            return this.toNumber();
+        return { $numberLong: this.toString() };
+    }
+    static fromExtendedJSON(doc, options) {
+        const { useBigInt64 = false, relaxed = true } = { ...options };
+        if (doc.$numberLong.length > MAX_INT64_STRING_LENGTH) {
+            throw new BSONError('$numberLong string is too long');
+        }
+        if (!DECIMAL_REG_EX.test(doc.$numberLong)) {
+            throw new BSONError(`$numberLong string "${doc.$numberLong}" is in an invalid format`);
+        }
+        if (useBigInt64) {
+            const bigIntResult = BigInt(doc.$numberLong);
+            return BigInt.asIntN(64, bigIntResult);
+        }
+        const longResult = Long.fromString(doc.$numberLong);
+        if (relaxed) {
+            return longResult.toNumber();
+        }
+        return longResult;
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        const longVal = inspect(this.toString(), options);
+        const unsignedVal = this.unsigned ? `, ${inspect(this.unsigned, options)}` : '';
+        return `new Long(${longVal}${unsignedVal})`;
+    }
+}
+Long.TWO_PWR_24 = Long.fromInt(TWO_PWR_24_DBL);
+Long.MAX_UNSIGNED_VALUE = Long.fromBits(0xffffffff | 0, 0xffffffff | 0, true);
+Long.ZERO = Long.fromInt(0);
+Long.UZERO = Long.fromInt(0, true);
+Long.ONE = Long.fromInt(1);
+Long.UONE = Long.fromInt(1, true);
+Long.NEG_ONE = Long.fromInt(-1);
+Long.MAX_VALUE = Long.fromBits(0xffffffff | 0, 0x7fffffff | 0, false);
+Long.MIN_VALUE = Long.fromBits(0, 0x80000000 | 0, false);
+
+const PARSE_STRING_REGEXP = /^(\+|-)?(\d+|(\d*\.\d*))?(E|e)?([-+])?(\d+)?$/;
+const PARSE_INF_REGEXP = /^(\+|-)?(Infinity|inf)$/i;
+const PARSE_NAN_REGEXP = /^(\+|-)?NaN$/i;
+const EXPONENT_MAX = 6111;
+const EXPONENT_MIN = -6176;
+const EXPONENT_BIAS = 6176;
+const MAX_DIGITS = 34;
+const NAN_BUFFER = ByteUtils.fromNumberArray([
+    0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+].reverse());
+const INF_NEGATIVE_BUFFER = ByteUtils.fromNumberArray([
+    0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+].reverse());
+const INF_POSITIVE_BUFFER = ByteUtils.fromNumberArray([
+    0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+].reverse());
+const EXPONENT_REGEX = /^([-+])?(\d+)?$/;
+const COMBINATION_MASK = 0x1f;
+const EXPONENT_MASK = 0x3fff;
+const COMBINATION_INFINITY = 30;
+const COMBINATION_NAN = 31;
+function isDigit(value) {
+    return !isNaN(parseInt(value, 10));
+}
+function divideu128(value) {
+    const DIVISOR = Long.fromNumber(1000 * 1000 * 1000);
+    let _rem = Long.fromNumber(0);
+    if (!value.parts[0] && !value.parts[1] && !value.parts[2] && !value.parts[3]) {
+        return { quotient: value, rem: _rem };
+    }
+    for (let i = 0; i <= 3; i++) {
+        _rem = _rem.shiftLeft(32);
+        _rem = _rem.add(new Long(value.parts[i], 0));
+        value.parts[i] = _rem.div(DIVISOR).low;
+        _rem = _rem.modulo(DIVISOR);
+    }
+    return { quotient: value, rem: _rem };
+}
+function multiply64x2(left, right) {
+    if (!left && !right) {
+        return { high: Long.fromNumber(0), low: Long.fromNumber(0) };
+    }
+    const leftHigh = left.shiftRightUnsigned(32);
+    const leftLow = new Long(left.getLowBits(), 0);
+    const rightHigh = right.shiftRightUnsigned(32);
+    const rightLow = new Long(right.getLowBits(), 0);
+    let productHigh = leftHigh.multiply(rightHigh);
+    let productMid = leftHigh.multiply(rightLow);
+    const productMid2 = leftLow.multiply(rightHigh);
+    let productLow = leftLow.multiply(rightLow);
+    productHigh = productHigh.add(productMid.shiftRightUnsigned(32));
+    productMid = new Long(productMid.getLowBits(), 0)
+        .add(productMid2)
+        .add(productLow.shiftRightUnsigned(32));
+    productHigh = productHigh.add(productMid.shiftRightUnsigned(32));
+    productLow = productMid.shiftLeft(32).add(new Long(productLow.getLowBits(), 0));
+    return { high: productHigh, low: productLow };
+}
+function lessThan(left, right) {
+    const uhleft = left.high >>> 0;
+    const uhright = right.high >>> 0;
+    if (uhleft < uhright) {
+        return true;
+    }
+    else if (uhleft === uhright) {
+        const ulleft = left.low >>> 0;
+        const ulright = right.low >>> 0;
+        if (ulleft < ulright)
+            return true;
+    }
+    return false;
+}
+function invalidErr(string, message) {
+    throw new BSONError(`"${string}" is not a valid Decimal128 string - ${message}`);
+}
+class Decimal128 extends BSONValue {
+    get _bsontype() {
+        return 'Decimal128';
+    }
+    constructor(bytes) {
+        super();
+        if (typeof bytes === 'string') {
+            this.bytes = Decimal128.fromString(bytes).bytes;
+        }
+        else if (bytes instanceof Uint8Array || isUint8Array(bytes)) {
+            if (bytes.byteLength !== 16) {
+                throw new BSONError('Decimal128 must take a Buffer of 16 bytes');
+            }
+            this.bytes = bytes;
+        }
+        else {
+            throw new BSONError('Decimal128 must take a Buffer or string');
+        }
+    }
+    static fromString(representation) {
+        return Decimal128._fromString(representation, { allowRounding: false });
+    }
+    static fromStringWithRounding(representation) {
+        return Decimal128._fromString(representation, { allowRounding: true });
+    }
+    static _fromString(representation, options) {
+        let isNegative = false;
+        let sawSign = false;
+        let sawRadix = false;
+        let foundNonZero = false;
+        let significantDigits = 0;
+        let nDigitsRead = 0;
+        let nDigits = 0;
+        let radixPosition = 0;
+        let firstNonZero = 0;
+        const digits = [0];
+        let nDigitsStored = 0;
+        let digitsInsert = 0;
+        let lastDigit = 0;
+        let exponent = 0;
+        let significandHigh = new Long(0, 0);
+        let significandLow = new Long(0, 0);
+        let biasedExponent = 0;
+        let index = 0;
+        if (representation.length >= 7000) {
+            throw new BSONError('' + representation + ' not a valid Decimal128 string');
+        }
+        const stringMatch = representation.match(PARSE_STRING_REGEXP);
+        const infMatch = representation.match(PARSE_INF_REGEXP);
+        const nanMatch = representation.match(PARSE_NAN_REGEXP);
+        if ((!stringMatch && !infMatch && !nanMatch) || representation.length === 0) {
+            throw new BSONError('' + representation + ' not a valid Decimal128 string');
+        }
+        if (stringMatch) {
+            const unsignedNumber = stringMatch[2];
+            const e = stringMatch[4];
+            const expSign = stringMatch[5];
+            const expNumber = stringMatch[6];
+            if (e && expNumber === undefined)
+                invalidErr(representation, 'missing exponent power');
+            if (e && unsignedNumber === undefined)
+                invalidErr(representation, 'missing exponent base');
+            if (e === undefined && (expSign || expNumber)) {
+                invalidErr(representation, 'missing e before exponent');
+            }
+        }
+        if (representation[index] === '+' || representation[index] === '-') {
+            sawSign = true;
+            isNegative = representation[index++] === '-';
+        }
+        if (!isDigit(representation[index]) && representation[index] !== '.') {
+            if (representation[index] === 'i' || representation[index] === 'I') {
+                return new Decimal128(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER);
+            }
+            else if (representation[index] === 'N') {
+                return new Decimal128(NAN_BUFFER);
+            }
+        }
+        while (isDigit(representation[index]) || representation[index] === '.') {
+            if (representation[index] === '.') {
+                if (sawRadix)
+                    invalidErr(representation, 'contains multiple periods');
+                sawRadix = true;
+                index = index + 1;
+                continue;
+            }
+            if (nDigitsStored < MAX_DIGITS) {
+                if (representation[index] !== '0' || foundNonZero) {
+                    if (!foundNonZero) {
+                        firstNonZero = nDigitsRead;
+                    }
+                    foundNonZero = true;
+                    digits[digitsInsert++] = parseInt(representation[index], 10);
+                    nDigitsStored = nDigitsStored + 1;
+                }
+            }
+            if (foundNonZero)
+                nDigits = nDigits + 1;
+            if (sawRadix)
+                radixPosition = radixPosition + 1;
+            nDigitsRead = nDigitsRead + 1;
+            index = index + 1;
+        }
+        if (sawRadix && !nDigitsRead)
+            throw new BSONError('' + representation + ' not a valid Decimal128 string');
+        if (representation[index] === 'e' || representation[index] === 'E') {
+            const match = representation.substr(++index).match(EXPONENT_REGEX);
+            if (!match || !match[2])
+                return new Decimal128(NAN_BUFFER);
+            exponent = parseInt(match[0], 10);
+            index = index + match[0].length;
+        }
+        if (representation[index])
+            return new Decimal128(NAN_BUFFER);
+        if (!nDigitsStored) {
+            digits[0] = 0;
+            nDigits = 1;
+            nDigitsStored = 1;
+            significantDigits = 0;
+        }
+        else {
+            lastDigit = nDigitsStored - 1;
+            significantDigits = nDigits;
+            if (significantDigits !== 1) {
+                while (representation[firstNonZero + significantDigits - 1 + Number(sawSign) + Number(sawRadix)] === '0') {
+                    significantDigits = significantDigits - 1;
+                }
+            }
+        }
+        if (exponent <= radixPosition && radixPosition > exponent + (1 << 14)) {
+            exponent = EXPONENT_MIN;
+        }
+        else {
+            exponent = exponent - radixPosition;
+        }
+        while (exponent > EXPONENT_MAX) {
+            lastDigit = lastDigit + 1;
+            if (lastDigit >= MAX_DIGITS) {
+                if (significantDigits === 0) {
+                    exponent = EXPONENT_MAX;
+                    break;
+                }
+                invalidErr(representation, 'overflow');
+            }
+            exponent = exponent - 1;
+        }
+        if (options.allowRounding) {
+            while (exponent < EXPONENT_MIN || nDigitsStored < nDigits) {
+                if (lastDigit === 0 && significantDigits < nDigitsStored) {
+                    exponent = EXPONENT_MIN;
+                    significantDigits = 0;
+                    break;
+                }
+                if (nDigitsStored < nDigits) {
+                    nDigits = nDigits - 1;
+                }
+                else {
+                    lastDigit = lastDigit - 1;
+                }
+                if (exponent < EXPONENT_MAX) {
+                    exponent = exponent + 1;
+                }
+                else {
+                    const digitsString = digits.join('');
+                    if (digitsString.match(/^0+$/)) {
+                        exponent = EXPONENT_MAX;
+                        break;
+                    }
+                    invalidErr(representation, 'overflow');
+                }
+            }
+            if (lastDigit + 1 < significantDigits) {
+                let endOfString = nDigitsRead;
+                if (sawRadix) {
+                    firstNonZero = firstNonZero + 1;
+                    endOfString = endOfString + 1;
+                }
+                if (sawSign) {
+                    firstNonZero = firstNonZero + 1;
+                    endOfString = endOfString + 1;
+                }
+                const roundDigit = parseInt(representation[firstNonZero + lastDigit + 1], 10);
+                let roundBit = 0;
+                if (roundDigit >= 5) {
+                    roundBit = 1;
+                    if (roundDigit === 5) {
+                        roundBit = digits[lastDigit] % 2 === 1 ? 1 : 0;
+                        for (let i = firstNonZero + lastDigit + 2; i < endOfString; i++) {
+                            if (parseInt(representation[i], 10)) {
+                                roundBit = 1;
+                                break;
+                            }
+                        }
+                    }
+                }
+                if (roundBit) {
+                    let dIdx = lastDigit;
+                    for (; dIdx >= 0; dIdx--) {
+                        if (++digits[dIdx] > 9) {
+                            digits[dIdx] = 0;
+                            if (dIdx === 0) {
+                                if (exponent < EXPONENT_MAX) {
+                                    exponent = exponent + 1;
+                                    digits[dIdx] = 1;
+                                }
+                                else {
+                                    return new Decimal128(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER);
+                                }
+                            }
+                        }
+                        else {
+                            break;
+                        }
+                    }
+                }
+            }
+        }
+        else {
+            while (exponent < EXPONENT_MIN || nDigitsStored < nDigits) {
+                if (lastDigit === 0) {
+                    if (significantDigits === 0) {
+                        exponent = EXPONENT_MIN;
+                        break;
+                    }
+                    invalidErr(representation, 'exponent underflow');
+                }
+                if (nDigitsStored < nDigits) {
+                    if (representation[nDigits - 1 + Number(sawSign) + Number(sawRadix)] !== '0' &&
+                        significantDigits !== 0) {
+                        invalidErr(representation, 'inexact rounding');
+                    }
+                    nDigits = nDigits - 1;
+                }
+                else {
+                    if (digits[lastDigit] !== 0) {
+                        invalidErr(representation, 'inexact rounding');
+                    }
+                    lastDigit = lastDigit - 1;
+                }
+                if (exponent < EXPONENT_MAX) {
+                    exponent = exponent + 1;
+                }
+                else {
+                    invalidErr(representation, 'overflow');
+                }
+            }
+            if (lastDigit + 1 < significantDigits) {
+                if (sawRadix) {
+                    firstNonZero = firstNonZero + 1;
+                }
+                if (sawSign) {
+                    firstNonZero = firstNonZero + 1;
+                }
+                const roundDigit = parseInt(representation[firstNonZero + lastDigit + 1], 10);
+                if (roundDigit !== 0) {
+                    invalidErr(representation, 'inexact rounding');
+                }
+            }
+        }
+        significandHigh = Long.fromNumber(0);
+        significandLow = Long.fromNumber(0);
+        if (significantDigits === 0) {
+            significandHigh = Long.fromNumber(0);
+            significandLow = Long.fromNumber(0);
+        }
+        else if (lastDigit < 17) {
+            let dIdx = 0;
+            significandLow = Long.fromNumber(digits[dIdx++]);
+            significandHigh = new Long(0, 0);
+            for (; dIdx <= lastDigit; dIdx++) {
+                significandLow = significandLow.multiply(Long.fromNumber(10));
+                significandLow = significandLow.add(Long.fromNumber(digits[dIdx]));
+            }
+        }
+        else {
+            let dIdx = 0;
+            significandHigh = Long.fromNumber(digits[dIdx++]);
+            for (; dIdx <= lastDigit - 17; dIdx++) {
+                significandHigh = significandHigh.multiply(Long.fromNumber(10));
+                significandHigh = significandHigh.add(Long.fromNumber(digits[dIdx]));
+            }
+            significandLow = Long.fromNumber(digits[dIdx++]);
+            for (; dIdx <= lastDigit; dIdx++) {
+                significandLow = significandLow.multiply(Long.fromNumber(10));
+                significandLow = significandLow.add(Long.fromNumber(digits[dIdx]));
+            }
+        }
+        const significand = multiply64x2(significandHigh, Long.fromString('100000000000000000'));
+        significand.low = significand.low.add(significandLow);
+        if (lessThan(significand.low, significandLow)) {
+            significand.high = significand.high.add(Long.fromNumber(1));
+        }
+        biasedExponent = exponent + EXPONENT_BIAS;
+        const dec = { low: Long.fromNumber(0), high: Long.fromNumber(0) };
+        if (significand.high.shiftRightUnsigned(49).and(Long.fromNumber(1)).equals(Long.fromNumber(1))) {
+            dec.high = dec.high.or(Long.fromNumber(0x3).shiftLeft(61));
+            dec.high = dec.high.or(Long.fromNumber(biasedExponent).and(Long.fromNumber(0x3fff).shiftLeft(47)));
+            dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x7fffffffffff)));
+        }
+        else {
+            dec.high = dec.high.or(Long.fromNumber(biasedExponent & 0x3fff).shiftLeft(49));
+            dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x1ffffffffffff)));
+        }
+        dec.low = significand.low;
+        if (isNegative) {
+            dec.high = dec.high.or(Long.fromString('9223372036854775808'));
+        }
+        const buffer = ByteUtils.allocateUnsafe(16);
+        index = 0;
+        buffer[index++] = dec.low.low & 0xff;
+        buffer[index++] = (dec.low.low >> 8) & 0xff;
+        buffer[index++] = (dec.low.low >> 16) & 0xff;
+        buffer[index++] = (dec.low.low >> 24) & 0xff;
+        buffer[index++] = dec.low.high & 0xff;
+        buffer[index++] = (dec.low.high >> 8) & 0xff;
+        buffer[index++] = (dec.low.high >> 16) & 0xff;
+        buffer[index++] = (dec.low.high >> 24) & 0xff;
+        buffer[index++] = dec.high.low & 0xff;
+        buffer[index++] = (dec.high.low >> 8) & 0xff;
+        buffer[index++] = (dec.high.low >> 16) & 0xff;
+        buffer[index++] = (dec.high.low >> 24) & 0xff;
+        buffer[index++] = dec.high.high & 0xff;
+        buffer[index++] = (dec.high.high >> 8) & 0xff;
+        buffer[index++] = (dec.high.high >> 16) & 0xff;
+        buffer[index++] = (dec.high.high >> 24) & 0xff;
+        return new Decimal128(buffer);
+    }
+    toString() {
+        let biased_exponent;
+        let significand_digits = 0;
+        const significand = new Array(36);
+        for (let i = 0; i < significand.length; i++)
+            significand[i] = 0;
+        let index = 0;
+        let is_zero = false;
+        let significand_msb;
+        let significand128 = { parts: [0, 0, 0, 0] };
+        let j, k;
+        const string = [];
+        index = 0;
+        const buffer = this.bytes;
+        const low = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
+        const midl = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
+        const midh = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
+        const high = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
+        index = 0;
+        const dec = {
+            low: new Long(low, midl),
+            high: new Long(midh, high)
+        };
+        if (dec.high.lessThan(Long.ZERO)) {
+            string.push('-');
+        }
+        const combination = (high >> 26) & COMBINATION_MASK;
+        if (combination >> 3 === 3) {
+            if (combination === COMBINATION_INFINITY) {
+                return string.join('') + 'Infinity';
+            }
+            else if (combination === COMBINATION_NAN) {
+                return 'NaN';
+            }
+            else {
+                biased_exponent = (high >> 15) & EXPONENT_MASK;
+                significand_msb = 0x08 + ((high >> 14) & 0x01);
+            }
+        }
+        else {
+            significand_msb = (high >> 14) & 0x07;
+            biased_exponent = (high >> 17) & EXPONENT_MASK;
+        }
+        const exponent = biased_exponent - EXPONENT_BIAS;
+        significand128.parts[0] = (high & 0x3fff) + ((significand_msb & 0xf) << 14);
+        significand128.parts[1] = midh;
+        significand128.parts[2] = midl;
+        significand128.parts[3] = low;
+        if (significand128.parts[0] === 0 &&
+            significand128.parts[1] === 0 &&
+            significand128.parts[2] === 0 &&
+            significand128.parts[3] === 0) {
+            is_zero = true;
+        }
+        else {
+            for (k = 3; k >= 0; k--) {
+                let least_digits = 0;
+                const result = divideu128(significand128);
+                significand128 = result.quotient;
+                least_digits = result.rem.low;
+                if (!least_digits)
+                    continue;
+                for (j = 8; j >= 0; j--) {
+                    significand[k * 9 + j] = least_digits % 10;
+                    least_digits = Math.floor(least_digits / 10);
+                }
+            }
+        }
+        if (is_zero) {
+            significand_digits = 1;
+            significand[index] = 0;
+        }
+        else {
+            significand_digits = 36;
+            while (!significand[index]) {
+                significand_digits = significand_digits - 1;
+                index = index + 1;
+            }
+        }
+        const scientific_exponent = significand_digits - 1 + exponent;
+        if (scientific_exponent >= 34 || scientific_exponent <= -7 || exponent > 0) {
+            if (significand_digits > 34) {
+                string.push(`${0}`);
+                if (exponent > 0)
+                    string.push(`E+${exponent}`);
+                else if (exponent < 0)
+                    string.push(`E${exponent}`);
+                return string.join('');
+            }
+            string.push(`${significand[index++]}`);
+            significand_digits = significand_digits - 1;
+            if (significand_digits) {
+                string.push('.');
+            }
+            for (let i = 0; i < significand_digits; i++) {
+                string.push(`${significand[index++]}`);
+            }
+            string.push('E');
+            if (scientific_exponent > 0) {
+                string.push(`+${scientific_exponent}`);
+            }
+            else {
+                string.push(`${scientific_exponent}`);
+            }
+        }
+        else {
+            if (exponent >= 0) {
+                for (let i = 0; i < significand_digits; i++) {
+                    string.push(`${significand[index++]}`);
+                }
+            }
+            else {
+                let radix_position = significand_digits + exponent;
+                if (radix_position > 0) {
+                    for (let i = 0; i < radix_position; i++) {
+                        string.push(`${significand[index++]}`);
+                    }
+                }
+                else {
+                    string.push('0');
+                }
+                string.push('.');
+                while (radix_position++ < 0) {
+                    string.push('0');
+                }
+                for (let i = 0; i < significand_digits - Math.max(radix_position - 1, 0); i++) {
+                    string.push(`${significand[index++]}`);
+                }
+            }
+        }
+        return string.join('');
+    }
+    toJSON() {
+        return { $numberDecimal: this.toString() };
+    }
+    toExtendedJSON() {
+        return { $numberDecimal: this.toString() };
+    }
+    static fromExtendedJSON(doc) {
+        return Decimal128.fromString(doc.$numberDecimal);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        const d128string = inspect(this.toString(), options);
+        return `new Decimal128(${d128string})`;
+    }
+}
+
+class Double extends BSONValue {
+    get _bsontype() {
+        return 'Double';
+    }
+    constructor(value) {
+        super();
+        if (value instanceof Number) {
+            value = value.valueOf();
+        }
+        this.value = +value;
+    }
+    static fromString(value) {
+        const coercedValue = Number(value);
+        if (value === 'NaN')
+            return new Double(NaN);
+        if (value === 'Infinity')
+            return new Double(Infinity);
+        if (value === '-Infinity')
+            return new Double(-Infinity);
+        if (!Number.isFinite(coercedValue)) {
+            throw new BSONError(`Input: ${value} is not representable as a Double`);
+        }
+        if (value.trim() !== value) {
+            throw new BSONError(`Input: '${value}' contains whitespace`);
+        }
+        if (value === '') {
+            throw new BSONError(`Input is an empty string`);
+        }
+        if (/[^-0-9.+eE]/.test(value)) {
+            throw new BSONError(`Input: '${value}' is not in decimal or exponential notation`);
+        }
+        return new Double(coercedValue);
+    }
+    valueOf() {
+        return this.value;
+    }
+    toJSON() {
+        return this.value;
+    }
+    toString(radix) {
+        return this.value.toString(radix);
+    }
+    toExtendedJSON(options) {
+        if (options && (options.legacy || (options.relaxed && isFinite(this.value)))) {
+            return this.value;
+        }
+        if (Object.is(Math.sign(this.value), -0)) {
+            return { $numberDouble: '-0.0' };
+        }
+        return {
+            $numberDouble: Number.isInteger(this.value) ? this.value.toFixed(1) : this.value.toString()
+        };
+    }
+    static fromExtendedJSON(doc, options) {
+        const doubleValue = parseFloat(doc.$numberDouble);
+        return options && options.relaxed ? doubleValue : new Double(doubleValue);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        return `new Double(${inspect(this.value, options)})`;
+    }
+}
+
+class Int32 extends BSONValue {
+    get _bsontype() {
+        return 'Int32';
+    }
+    constructor(value) {
+        super();
+        if (value instanceof Number) {
+            value = value.valueOf();
+        }
+        this.value = +value | 0;
+    }
+    static fromString(value) {
+        const cleanedValue = removeLeadingZerosAndExplicitPlus(value);
+        const coercedValue = Number(value);
+        if (BSON_INT32_MAX < coercedValue) {
+            throw new BSONError(`Input: '${value}' is larger than the maximum value for Int32`);
+        }
+        else if (BSON_INT32_MIN > coercedValue) {
+            throw new BSONError(`Input: '${value}' is smaller than the minimum value for Int32`);
+        }
+        else if (!Number.isSafeInteger(coercedValue)) {
+            throw new BSONError(`Input: '${value}' is not a safe integer`);
+        }
+        else if (coercedValue.toString() !== cleanedValue) {
+            throw new BSONError(`Input: '${value}' is not a valid Int32 string`);
+        }
+        return new Int32(coercedValue);
+    }
+    valueOf() {
+        return this.value;
+    }
+    toString(radix) {
+        return this.value.toString(radix);
+    }
+    toJSON() {
+        return this.value;
+    }
+    toExtendedJSON(options) {
+        if (options && (options.relaxed || options.legacy))
+            return this.value;
+        return { $numberInt: this.value.toString() };
+    }
+    static fromExtendedJSON(doc, options) {
+        return options && options.relaxed ? parseInt(doc.$numberInt, 10) : new Int32(doc.$numberInt);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        return `new Int32(${inspect(this.value, options)})`;
+    }
+}
+
+class MaxKey extends BSONValue {
+    get _bsontype() {
+        return 'MaxKey';
+    }
+    toExtendedJSON() {
+        return { $maxKey: 1 };
+    }
+    static fromExtendedJSON() {
+        return new MaxKey();
+    }
+    inspect() {
+        return 'new MaxKey()';
+    }
+}
+
+class MinKey extends BSONValue {
+    get _bsontype() {
+        return 'MinKey';
+    }
+    toExtendedJSON() {
+        return { $minKey: 1 };
+    }
+    static fromExtendedJSON() {
+        return new MinKey();
+    }
+    inspect() {
+        return 'new MinKey()';
+    }
+}
+
+let PROCESS_UNIQUE = null;
+const __idCache = new WeakMap();
+class ObjectId extends BSONValue {
+    get _bsontype() {
+        return 'ObjectId';
+    }
+    constructor(inputId) {
+        super();
+        let workingId;
+        if (typeof inputId === 'object' && inputId && 'id' in inputId) {
+            if (typeof inputId.id !== 'string' && !ArrayBuffer.isView(inputId.id)) {
+                throw new BSONError('Argument passed in must have an id that is of type string or Buffer');
+            }
+            if ('toHexString' in inputId && typeof inputId.toHexString === 'function') {
+                workingId = ByteUtils.fromHex(inputId.toHexString());
+            }
+            else {
+                workingId = inputId.id;
+            }
+        }
+        else {
+            workingId = inputId;
+        }
+        if (workingId == null || typeof workingId === 'number') {
+            this.buffer = ObjectId.generate(typeof workingId === 'number' ? workingId : undefined);
+        }
+        else if (ArrayBuffer.isView(workingId) && workingId.byteLength === 12) {
+            this.buffer = ByteUtils.toLocalBufferType(workingId);
+        }
+        else if (typeof workingId === 'string') {
+            if (ObjectId.validateHexString(workingId)) {
+                this.buffer = ByteUtils.fromHex(workingId);
+                if (ObjectId.cacheHexString) {
+                    __idCache.set(this, workingId);
+                }
+            }
+            else {
+                throw new BSONError('input must be a 24 character hex string, 12 byte Uint8Array, or an integer');
+            }
+        }
+        else {
+            throw new BSONError('Argument passed in does not match the accepted types');
+        }
+    }
+    get id() {
+        return this.buffer;
+    }
+    set id(value) {
+        this.buffer = value;
+        if (ObjectId.cacheHexString) {
+            __idCache.set(this, ByteUtils.toHex(value));
+        }
+    }
+    static validateHexString(string) {
+        if (string?.length !== 24)
+            return false;
+        for (let i = 0; i < 24; i++) {
+            const char = string.charCodeAt(i);
+            if ((char >= 48 && char <= 57) ||
+                (char >= 97 && char <= 102) ||
+                (char >= 65 && char <= 70)) {
+                continue;
+            }
+            return false;
+        }
+        return true;
+    }
+    toHexString() {
+        if (ObjectId.cacheHexString) {
+            const __id = __idCache.get(this);
+            if (__id)
+                return __id;
+        }
+        const hexString = ByteUtils.toHex(this.id);
+        if (ObjectId.cacheHexString) {
+            __idCache.set(this, hexString);
+        }
+        return hexString;
+    }
+    static getInc() {
+        return (ObjectId.index = (ObjectId.index + 1) % 0xffffff);
+    }
+    static generate(time) {
+        if ('number' !== typeof time) {
+            time = Math.floor(Date.now() / 1000);
+        }
+        const inc = ObjectId.getInc();
+        const buffer = ByteUtils.allocateUnsafe(12);
+        NumberUtils.setInt32BE(buffer, 0, time);
+        if (PROCESS_UNIQUE === null) {
+            PROCESS_UNIQUE = ByteUtils.randomBytes(5);
+        }
+        buffer[4] = PROCESS_UNIQUE[0];
+        buffer[5] = PROCESS_UNIQUE[1];
+        buffer[6] = PROCESS_UNIQUE[2];
+        buffer[7] = PROCESS_UNIQUE[3];
+        buffer[8] = PROCESS_UNIQUE[4];
+        buffer[11] = inc & 0xff;
+        buffer[10] = (inc >> 8) & 0xff;
+        buffer[9] = (inc >> 16) & 0xff;
+        return buffer;
+    }
+    toString(encoding) {
+        if (encoding === 'base64')
+            return ByteUtils.toBase64(this.id);
+        if (encoding === 'hex')
+            return this.toHexString();
+        return this.toHexString();
+    }
+    toJSON() {
+        return this.toHexString();
+    }
+    static is(variable) {
+        return (variable != null &&
+            typeof variable === 'object' &&
+            '_bsontype' in variable &&
+            variable._bsontype === 'ObjectId');
+    }
+    equals(otherId) {
+        if (otherId === undefined || otherId === null) {
+            return false;
+        }
+        if (ObjectId.is(otherId)) {
+            return (this.buffer[11] === otherId.buffer[11] && ByteUtils.equals(this.buffer, otherId.buffer));
+        }
+        if (typeof otherId === 'string') {
+            return otherId.toLowerCase() === this.toHexString();
+        }
+        if (typeof otherId === 'object' && typeof otherId.toHexString === 'function') {
+            const otherIdString = otherId.toHexString();
+            const thisIdString = this.toHexString();
+            return typeof otherIdString === 'string' && otherIdString.toLowerCase() === thisIdString;
+        }
+        return false;
+    }
+    getTimestamp() {
+        const timestamp = new Date();
+        const time = NumberUtils.getUint32BE(this.buffer, 0);
+        timestamp.setTime(Math.floor(time) * 1000);
+        return timestamp;
+    }
+    static createPk() {
+        return new ObjectId();
+    }
+    serializeInto(uint8array, index) {
+        uint8array[index] = this.buffer[0];
+        uint8array[index + 1] = this.buffer[1];
+        uint8array[index + 2] = this.buffer[2];
+        uint8array[index + 3] = this.buffer[3];
+        uint8array[index + 4] = this.buffer[4];
+        uint8array[index + 5] = this.buffer[5];
+        uint8array[index + 6] = this.buffer[6];
+        uint8array[index + 7] = this.buffer[7];
+        uint8array[index + 8] = this.buffer[8];
+        uint8array[index + 9] = this.buffer[9];
+        uint8array[index + 10] = this.buffer[10];
+        uint8array[index + 11] = this.buffer[11];
+        return 12;
+    }
+    static createFromTime(time) {
+        const buffer = ByteUtils.allocate(12);
+        for (let i = 11; i >= 4; i--)
+            buffer[i] = 0;
+        NumberUtils.setInt32BE(buffer, 0, time);
+        return new ObjectId(buffer);
+    }
+    static createFromHexString(hexString) {
+        if (hexString?.length !== 24) {
+            throw new BSONError('hex string must be 24 characters');
+        }
+        return new ObjectId(ByteUtils.fromHex(hexString));
+    }
+    static createFromBase64(base64) {
+        if (base64?.length !== 16) {
+            throw new BSONError('base64 string must be 16 characters');
+        }
+        return new ObjectId(ByteUtils.fromBase64(base64));
+    }
+    static isValid(id) {
+        if (id == null)
+            return false;
+        if (typeof id === 'string')
+            return ObjectId.validateHexString(id);
+        try {
+            new ObjectId(id);
+            return true;
+        }
+        catch {
+            return false;
+        }
+    }
+    toExtendedJSON() {
+        if (this.toHexString)
+            return { $oid: this.toHexString() };
+        return { $oid: this.toString('hex') };
+    }
+    static fromExtendedJSON(doc) {
+        return new ObjectId(doc.$oid);
+    }
+    isCached() {
+        return ObjectId.cacheHexString && __idCache.has(this);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        return `new ObjectId(${inspect(this.toHexString(), options)})`;
+    }
+}
+ObjectId.index = Math.floor(Math.random() * 0xffffff);
+
+function internalCalculateObjectSize(object, serializeFunctions, ignoreUndefined) {
+    let totalLength = 4 + 1;
+    if (Array.isArray(object)) {
+        for (let i = 0; i < object.length; i++) {
+            totalLength += calculateElement(i.toString(), object[i], serializeFunctions, true, ignoreUndefined);
+        }
+    }
+    else {
+        if (typeof object?.toBSON === 'function') {
+            object = object.toBSON();
+        }
+        for (const key of Object.keys(object)) {
+            totalLength += calculateElement(key, object[key], serializeFunctions, false, ignoreUndefined);
+        }
+    }
+    return totalLength;
+}
+function calculateElement(name, value, serializeFunctions = false, isArray = false, ignoreUndefined = false) {
+    if (typeof value?.toBSON === 'function') {
+        value = value.toBSON();
+    }
+    switch (typeof value) {
+        case 'string':
+            return 1 + ByteUtils.utf8ByteLength(name) + 1 + 4 + ByteUtils.utf8ByteLength(value) + 1;
+        case 'number':
+            if (Math.floor(value) === value &&
+                value >= JS_INT_MIN &&
+                value <= JS_INT_MAX) {
+                if (value >= BSON_INT32_MIN && value <= BSON_INT32_MAX) {
+                    return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (4 + 1);
+                }
+                else {
+                    return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+                }
+            }
+            else {
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+            }
+        case 'undefined':
+            if (isArray || !ignoreUndefined)
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + 1;
+            return 0;
+        case 'boolean':
+            return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (1 + 1);
+        case 'object':
+            if (value != null &&
+                typeof value._bsontype === 'string' &&
+                value[BSON_VERSION_SYMBOL] !== BSON_MAJOR_VERSION) {
+                throw new BSONVersionError();
+            }
+            else if (value == null || value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') {
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + 1;
+            }
+            else if (value._bsontype === 'ObjectId') {
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (12 + 1);
+            }
+            else if (value instanceof Date || isDate(value)) {
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+            }
+            else if (ArrayBuffer.isView(value) ||
+                value instanceof ArrayBuffer ||
+                isAnyArrayBuffer(value)) {
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (1 + 4 + 1) + value.byteLength);
+            }
+            else if (value._bsontype === 'Long' ||
+                value._bsontype === 'Double' ||
+                value._bsontype === 'Timestamp') {
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+            }
+            else if (value._bsontype === 'Decimal128') {
+                return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (16 + 1);
+            }
+            else if (value._bsontype === 'Code') {
+                if (value.scope != null && Object.keys(value.scope).length > 0) {
+                    return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                        1 +
+                        4 +
+                        4 +
+                        ByteUtils.utf8ByteLength(value.code.toString()) +
+                        1 +
+                        internalCalculateObjectSize(value.scope, serializeFunctions, ignoreUndefined));
+                }
+                else {
+                    return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                        1 +
+                        4 +
+                        ByteUtils.utf8ByteLength(value.code.toString()) +
+                        1);
+                }
+            }
+            else if (value._bsontype === 'Binary') {
+                const binary = value;
+                if (binary.sub_type === Binary.SUBTYPE_BYTE_ARRAY) {
+                    return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                        (binary.position + 1 + 4 + 1 + 4));
+                }
+                else {
+                    return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (binary.position + 1 + 4 + 1));
+                }
+            }
+            else if (value._bsontype === 'Symbol') {
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                    ByteUtils.utf8ByteLength(value.value) +
+                    4 +
+                    1 +
+                    1);
+            }
+            else if (value._bsontype === 'DBRef') {
+                const ordered_values = Object.assign({
+                    $ref: value.collection,
+                    $id: value.oid
+                }, value.fields);
+                if (value.db != null) {
+                    ordered_values['$db'] = value.db;
+                }
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                    1 +
+                    internalCalculateObjectSize(ordered_values, serializeFunctions, ignoreUndefined));
+            }
+            else if (value instanceof RegExp || isRegExp(value)) {
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                    1 +
+                    ByteUtils.utf8ByteLength(value.source) +
+                    1 +
+                    (value.global ? 1 : 0) +
+                    (value.ignoreCase ? 1 : 0) +
+                    (value.multiline ? 1 : 0) +
+                    1);
+            }
+            else if (value._bsontype === 'BSONRegExp') {
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                    1 +
+                    ByteUtils.utf8ByteLength(value.pattern) +
+                    1 +
+                    ByteUtils.utf8ByteLength(value.options) +
+                    1);
+            }
+            else {
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                    internalCalculateObjectSize(value, serializeFunctions, ignoreUndefined) +
+                    1);
+            }
+        case 'function':
+            if (serializeFunctions) {
+                return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+                    1 +
+                    4 +
+                    ByteUtils.utf8ByteLength(value.toString()) +
+                    1);
+            }
+            return 0;
+        case 'bigint':
+            return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+        case 'symbol':
+            return 0;
+        default:
+            throw new BSONError(`Unrecognized JS type: ${typeof value}`);
+    }
+    return 0;
+}
+
+function alphabetize(str) {
+    return str.split('').sort().join('');
+}
+class BSONRegExp extends BSONValue {
+    get _bsontype() {
+        return 'BSONRegExp';
+    }
+    constructor(pattern, options) {
+        super();
+        this.pattern = pattern;
+        this.options = alphabetize(options ?? '');
+        if (this.pattern.indexOf('\x00') !== -1) {
+            throw new BSONError(`BSON Regex patterns cannot contain null bytes, found: ${JSON.stringify(this.pattern)}`);
+        }
+        if (this.options.indexOf('\x00') !== -1) {
+            throw new BSONError(`BSON Regex options cannot contain null bytes, found: ${JSON.stringify(this.options)}`);
+        }
+        for (let i = 0; i < this.options.length; i++) {
+            if (!(this.options[i] === 'i' ||
+                this.options[i] === 'm' ||
+                this.options[i] === 'x' ||
+                this.options[i] === 'l' ||
+                this.options[i] === 's' ||
+                this.options[i] === 'u')) {
+                throw new BSONError(`The regular expression option [${this.options[i]}] is not supported`);
+            }
+        }
+    }
+    static parseOptions(options) {
+        return options ? options.split('').sort().join('') : '';
+    }
+    toExtendedJSON(options) {
+        options = options || {};
+        if (options.legacy) {
+            return { $regex: this.pattern, $options: this.options };
+        }
+        return { $regularExpression: { pattern: this.pattern, options: this.options } };
+    }
+    static fromExtendedJSON(doc) {
+        if ('$regex' in doc) {
+            if (typeof doc.$regex !== 'string') {
+                if (doc.$regex._bsontype === 'BSONRegExp') {
+                    return doc;
+                }
+            }
+            else {
+                return new BSONRegExp(doc.$regex, BSONRegExp.parseOptions(doc.$options));
+            }
+        }
+        if ('$regularExpression' in doc) {
+            return new BSONRegExp(doc.$regularExpression.pattern, BSONRegExp.parseOptions(doc.$regularExpression.options));
+        }
+        throw new BSONError(`Unexpected BSONRegExp EJSON object form: ${JSON.stringify(doc)}`);
+    }
+    inspect(depth, options, inspect) {
+        const stylize = getStylizeFunction(options) ?? (v => v);
+        inspect ??= defaultInspect;
+        const pattern = stylize(inspect(this.pattern), 'regexp');
+        const flags = stylize(inspect(this.options), 'regexp');
+        return `new BSONRegExp(${pattern}, ${flags})`;
+    }
+}
+
+class BSONSymbol extends BSONValue {
+    get _bsontype() {
+        return 'BSONSymbol';
+    }
+    constructor(value) {
+        super();
+        this.value = value;
+    }
+    valueOf() {
+        return this.value;
+    }
+    toString() {
+        return this.value;
+    }
+    toJSON() {
+        return this.value;
+    }
+    toExtendedJSON() {
+        return { $symbol: this.value };
+    }
+    static fromExtendedJSON(doc) {
+        return new BSONSymbol(doc.$symbol);
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        return `new BSONSymbol(${inspect(this.value, options)})`;
+    }
+}
+
+const LongWithoutOverridesClass = Long;
+class Timestamp extends LongWithoutOverridesClass {
+    get _bsontype() {
+        return 'Timestamp';
+    }
+    get i() {
+        return this.low >>> 0;
+    }
+    get t() {
+        return this.high >>> 0;
+    }
+    constructor(low) {
+        if (low == null) {
+            super(0, 0, true);
+        }
+        else if (typeof low === 'bigint') {
+            super(low, true);
+        }
+        else if (Long.isLong(low)) {
+            super(low.low, low.high, true);
+        }
+        else if (typeof low === 'object' && 't' in low && 'i' in low) {
+            if (typeof low.t !== 'number' && (typeof low.t !== 'object' || low.t._bsontype !== 'Int32')) {
+                throw new BSONError('Timestamp constructed from { t, i } must provide t as a number');
+            }
+            if (typeof low.i !== 'number' && (typeof low.i !== 'object' || low.i._bsontype !== 'Int32')) {
+                throw new BSONError('Timestamp constructed from { t, i } must provide i as a number');
+            }
+            const t = Number(low.t);
+            const i = Number(low.i);
+            if (t < 0 || Number.isNaN(t)) {
+                throw new BSONError('Timestamp constructed from { t, i } must provide a positive t');
+            }
+            if (i < 0 || Number.isNaN(i)) {
+                throw new BSONError('Timestamp constructed from { t, i } must provide a positive i');
+            }
+            if (t > 0xffff_ffff) {
+                throw new BSONError('Timestamp constructed from { t, i } must provide t equal or less than uint32 max');
+            }
+            if (i > 0xffff_ffff) {
+                throw new BSONError('Timestamp constructed from { t, i } must provide i equal or less than uint32 max');
+            }
+            super(i, t, true);
+        }
+        else {
+            throw new BSONError('A Timestamp can only be constructed with: bigint, Long, or { t: number; i: number }');
+        }
+    }
+    toJSON() {
+        return {
+            $timestamp: this.toString()
+        };
+    }
+    static fromInt(value) {
+        return new Timestamp(Long.fromInt(value, true));
+    }
+    static fromNumber(value) {
+        return new Timestamp(Long.fromNumber(value, true));
+    }
+    static fromBits(lowBits, highBits) {
+        return new Timestamp({ i: lowBits, t: highBits });
+    }
+    static fromString(str, optRadix) {
+        return new Timestamp(Long.fromString(str, true, optRadix));
+    }
+    toExtendedJSON() {
+        return { $timestamp: { t: this.t, i: this.i } };
+    }
+    static fromExtendedJSON(doc) {
+        const i = Long.isLong(doc.$timestamp.i)
+            ? doc.$timestamp.i.getLowBitsUnsigned()
+            : doc.$timestamp.i;
+        const t = Long.isLong(doc.$timestamp.t)
+            ? doc.$timestamp.t.getLowBitsUnsigned()
+            : doc.$timestamp.t;
+        return new Timestamp({ t, i });
+    }
+    inspect(depth, options, inspect) {
+        inspect ??= defaultInspect;
+        const t = inspect(this.t, options);
+        const i = inspect(this.i, options);
+        return `new Timestamp({ t: ${t}, i: ${i} })`;
+    }
+}
+Timestamp.MAX_VALUE = Long.MAX_UNSIGNED_VALUE;
+
+const JS_INT_MAX_LONG = Long.fromNumber(JS_INT_MAX);
+const JS_INT_MIN_LONG = Long.fromNumber(JS_INT_MIN);
+function internalDeserialize(buffer, options, isArray) {
+    options = options == null ? {} : options;
+    const index = options && options.index ? options.index : 0;
+    const size = NumberUtils.getInt32LE(buffer, index);
+    if (size < 5) {
+        throw new BSONError(`bson size must be >= 5, is ${size}`);
+    }
+    if (options.allowObjectSmallerThanBufferSize && buffer.length < size) {
+        throw new BSONError(`buffer length ${buffer.length} must be >= bson size ${size}`);
+    }
+    if (!options.allowObjectSmallerThanBufferSize && buffer.length !== size) {
+        throw new BSONError(`buffer length ${buffer.length} must === bson size ${size}`);
+    }
+    if (size + index > buffer.byteLength) {
+        throw new BSONError(`(bson size ${size} + options.index ${index} must be <= buffer length ${buffer.byteLength})`);
+    }
+    if (buffer[index + size - 1] !== 0) {
+        throw new BSONError("One object, sized correctly, with a spot for an EOO, but the EOO isn't 0x00");
+    }
+    return deserializeObject(buffer, index, options, isArray);
+}
+const allowedDBRefKeys = /^\$ref$|^\$id$|^\$db$/;
+function deserializeObject(buffer, index, options, isArray = false) {
+    const fieldsAsRaw = options['fieldsAsRaw'] == null ? null : options['fieldsAsRaw'];
+    const raw = options['raw'] == null ? false : options['raw'];
+    const bsonRegExp = typeof options['bsonRegExp'] === 'boolean' ? options['bsonRegExp'] : false;
+    const promoteBuffers = options.promoteBuffers ?? false;
+    const promoteLongs = options.promoteLongs ?? true;
+    const promoteValues = options.promoteValues ?? true;
+    const useBigInt64 = options.useBigInt64 ?? false;
+    if (useBigInt64 && !promoteValues) {
+        throw new BSONError('Must either request bigint or Long for int64 deserialization');
+    }
+    if (useBigInt64 && !promoteLongs) {
+        throw new BSONError('Must either request bigint or Long for int64 deserialization');
+    }
+    const validation = options.validation == null ? { utf8: true } : options.validation;
+    let globalUTFValidation = true;
+    let validationSetting;
+    let utf8KeysSet;
+    const utf8ValidatedKeys = validation.utf8;
+    if (typeof utf8ValidatedKeys === 'boolean') {
+        validationSetting = utf8ValidatedKeys;
+    }
+    else {
+        globalUTFValidation = false;
+        const utf8ValidationValues = Object.keys(utf8ValidatedKeys).map(function (key) {
+            return utf8ValidatedKeys[key];
+        });
+        if (utf8ValidationValues.length === 0) {
+            throw new BSONError('UTF-8 validation setting cannot be empty');
+        }
+        if (typeof utf8ValidationValues[0] !== 'boolean') {
+            throw new BSONError('Invalid UTF-8 validation option, must specify boolean values');
+        }
+        validationSetting = utf8ValidationValues[0];
+        if (!utf8ValidationValues.every(item => item === validationSetting)) {
+            throw new BSONError('Invalid UTF-8 validation option - keys must be all true or all false');
+        }
+    }
+    if (!globalUTFValidation) {
+        utf8KeysSet = new Set();
+        for (const key of Object.keys(utf8ValidatedKeys)) {
+            utf8KeysSet.add(key);
+        }
+    }
+    const startIndex = index;
+    if (buffer.length < 5)
+        throw new BSONError('corrupt bson message < 5 bytes long');
+    const size = NumberUtils.getInt32LE(buffer, index);
+    index += 4;
+    if (size < 5 || size > buffer.length)
+        throw new BSONError('corrupt bson message');
+    const object = isArray ? [] : {};
+    let arrayIndex = 0;
+    const done = false;
+    let isPossibleDBRef = isArray ? false : null;
+    while (!done) {
+        const elementType = buffer[index++];
+        if (elementType === 0)
+            break;
+        let i = index;
+        while (buffer[i] !== 0x00 && i < buffer.length) {
+            i++;
+        }
+        if (i >= buffer.byteLength)
+            throw new BSONError('Bad BSON Document: illegal CString');
+        const name = isArray ? arrayIndex++ : ByteUtils.toUTF8(buffer, index, i, false);
+        let shouldValidateKey = true;
+        if (globalUTFValidation || utf8KeysSet?.has(name)) {
+            shouldValidateKey = validationSetting;
+        }
+        else {
+            shouldValidateKey = !validationSetting;
+        }
+        if (isPossibleDBRef !== false && name[0] === '$') {
+            isPossibleDBRef = allowedDBRefKeys.test(name);
+        }
+        let value;
+        index = i + 1;
+        if (elementType === BSON_DATA_STRING) {
+            const stringSize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            if (stringSize <= 0 ||
+                stringSize > buffer.length - index ||
+                buffer[index + stringSize - 1] !== 0) {
+                throw new BSONError('bad string length in bson');
+            }
+            value = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey);
+            index = index + stringSize;
+        }
+        else if (elementType === BSON_DATA_OID) {
+            const oid = ByteUtils.allocateUnsafe(12);
+            for (let i = 0; i < 12; i++)
+                oid[i] = buffer[index + i];
+            value = new ObjectId(oid);
+            index = index + 12;
+        }
+        else if (elementType === BSON_DATA_INT && promoteValues === false) {
+            value = new Int32(NumberUtils.getInt32LE(buffer, index));
+            index += 4;
+        }
+        else if (elementType === BSON_DATA_INT) {
+            value = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+        }
+        else if (elementType === BSON_DATA_NUMBER) {
+            value = NumberUtils.getFloat64LE(buffer, index);
+            index += 8;
+            if (promoteValues === false)
+                value = new Double(value);
+        }
+        else if (elementType === BSON_DATA_DATE) {
+            const lowBits = NumberUtils.getInt32LE(buffer, index);
+            const highBits = NumberUtils.getInt32LE(buffer, index + 4);
+            index += 8;
+            value = new Date(new Long(lowBits, highBits).toNumber());
+        }
+        else if (elementType === BSON_DATA_BOOLEAN) {
+            if (buffer[index] !== 0 && buffer[index] !== 1)
+                throw new BSONError('illegal boolean type value');
+            value = buffer[index++] === 1;
+        }
+        else if (elementType === BSON_DATA_OBJECT) {
+            const _index = index;
+            const objectSize = NumberUtils.getInt32LE(buffer, index);
+            if (objectSize <= 0 || objectSize > buffer.length - index)
+                throw new BSONError('bad embedded document length in bson');
+            if (raw) {
+                value = buffer.subarray(index, index + objectSize);
+            }
+            else {
+                let objectOptions = options;
+                if (!globalUTFValidation) {
+                    objectOptions = { ...options, validation: { utf8: shouldValidateKey } };
+                }
+                value = deserializeObject(buffer, _index, objectOptions, false);
+            }
+            index = index + objectSize;
+        }
+        else if (elementType === BSON_DATA_ARRAY) {
+            const _index = index;
+            const objectSize = NumberUtils.getInt32LE(buffer, index);
+            let arrayOptions = options;
+            const stopIndex = index + objectSize;
+            if (fieldsAsRaw && fieldsAsRaw[name]) {
+                arrayOptions = { ...options, raw: true };
+            }
+            if (!globalUTFValidation) {
+                arrayOptions = { ...arrayOptions, validation: { utf8: shouldValidateKey } };
+            }
+            value = deserializeObject(buffer, _index, arrayOptions, true);
+            index = index + objectSize;
+            if (buffer[index - 1] !== 0)
+                throw new BSONError('invalid array terminator byte');
+            if (index !== stopIndex)
+                throw new BSONError('corrupted array bson');
+        }
+        else if (elementType === BSON_DATA_UNDEFINED) {
+            value = undefined;
+        }
+        else if (elementType === BSON_DATA_NULL) {
+            value = null;
+        }
+        else if (elementType === BSON_DATA_LONG) {
+            if (useBigInt64) {
+                value = NumberUtils.getBigInt64LE(buffer, index);
+                index += 8;
+            }
+            else {
+                const lowBits = NumberUtils.getInt32LE(buffer, index);
+                const highBits = NumberUtils.getInt32LE(buffer, index + 4);
+                index += 8;
+                const long = new Long(lowBits, highBits);
+                if (promoteLongs && promoteValues === true) {
+                    value =
+                        long.lessThanOrEqual(JS_INT_MAX_LONG) && long.greaterThanOrEqual(JS_INT_MIN_LONG)
+                            ? long.toNumber()
+                            : long;
+                }
+                else {
+                    value = long;
+                }
+            }
+        }
+        else if (elementType === BSON_DATA_DECIMAL128) {
+            const bytes = ByteUtils.allocateUnsafe(16);
+            for (let i = 0; i < 16; i++)
+                bytes[i] = buffer[index + i];
+            index = index + 16;
+            value = new Decimal128(bytes);
+        }
+        else if (elementType === BSON_DATA_BINARY) {
+            let binarySize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            const totalBinarySize = binarySize;
+            const subType = buffer[index++];
+            if (binarySize < 0)
+                throw new BSONError('Negative binary type element size found');
+            if (binarySize > buffer.byteLength)
+                throw new BSONError('Binary type size larger than document size');
+            if (subType === Binary.SUBTYPE_BYTE_ARRAY) {
+                binarySize = NumberUtils.getInt32LE(buffer, index);
+                index += 4;
+                if (binarySize < 0)
+                    throw new BSONError('Negative binary type element size found for subtype 0x02');
+                if (binarySize > totalBinarySize - 4)
+                    throw new BSONError('Binary type with subtype 0x02 contains too long binary size');
+                if (binarySize < totalBinarySize - 4)
+                    throw new BSONError('Binary type with subtype 0x02 contains too short binary size');
+            }
+            if (promoteBuffers && promoteValues) {
+                value = ByteUtils.toLocalBufferType(buffer.subarray(index, index + binarySize));
+            }
+            else {
+                value = new Binary(buffer.subarray(index, index + binarySize), subType);
+                if (subType === BSON_BINARY_SUBTYPE_UUID_NEW && UUID.isValid(value)) {
+                    value = value.toUUID();
+                }
+            }
+            index = index + binarySize;
+        }
+        else if (elementType === BSON_DATA_REGEXP && bsonRegExp === false) {
+            i = index;
+            while (buffer[i] !== 0x00 && i < buffer.length) {
+                i++;
+            }
+            if (i >= buffer.length)
+                throw new BSONError('Bad BSON Document: illegal CString');
+            const source = ByteUtils.toUTF8(buffer, index, i, false);
+            index = i + 1;
+            i = index;
+            while (buffer[i] !== 0x00 && i < buffer.length) {
+                i++;
+            }
+            if (i >= buffer.length)
+                throw new BSONError('Bad BSON Document: illegal CString');
+            const regExpOptions = ByteUtils.toUTF8(buffer, index, i, false);
+            index = i + 1;
+            const optionsArray = new Array(regExpOptions.length);
+            for (i = 0; i < regExpOptions.length; i++) {
+                switch (regExpOptions[i]) {
+                    case 'm':
+                        optionsArray[i] = 'm';
+                        break;
+                    case 's':
+                        optionsArray[i] = 'g';
+                        break;
+                    case 'i':
+                        optionsArray[i] = 'i';
+                        break;
+                }
+            }
+            value = new RegExp(source, optionsArray.join(''));
+        }
+        else if (elementType === BSON_DATA_REGEXP && bsonRegExp === true) {
+            i = index;
+            while (buffer[i] !== 0x00 && i < buffer.length) {
+                i++;
+            }
+            if (i >= buffer.length)
+                throw new BSONError('Bad BSON Document: illegal CString');
+            const source = ByteUtils.toUTF8(buffer, index, i, false);
+            index = i + 1;
+            i = index;
+            while (buffer[i] !== 0x00 && i < buffer.length) {
+                i++;
+            }
+            if (i >= buffer.length)
+                throw new BSONError('Bad BSON Document: illegal CString');
+            const regExpOptions = ByteUtils.toUTF8(buffer, index, i, false);
+            index = i + 1;
+            value = new BSONRegExp(source, regExpOptions);
+        }
+        else if (elementType === BSON_DATA_SYMBOL) {
+            const stringSize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            if (stringSize <= 0 ||
+                stringSize > buffer.length - index ||
+                buffer[index + stringSize - 1] !== 0) {
+                throw new BSONError('bad string length in bson');
+            }
+            const symbol = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey);
+            value = promoteValues ? symbol : new BSONSymbol(symbol);
+            index = index + stringSize;
+        }
+        else if (elementType === BSON_DATA_TIMESTAMP) {
+            value = new Timestamp({
+                i: NumberUtils.getUint32LE(buffer, index),
+                t: NumberUtils.getUint32LE(buffer, index + 4)
+            });
+            index += 8;
+        }
+        else if (elementType === BSON_DATA_MIN_KEY) {
+            value = new MinKey();
+        }
+        else if (elementType === BSON_DATA_MAX_KEY) {
+            value = new MaxKey();
+        }
+        else if (elementType === BSON_DATA_CODE) {
+            const stringSize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            if (stringSize <= 0 ||
+                stringSize > buffer.length - index ||
+                buffer[index + stringSize - 1] !== 0) {
+                throw new BSONError('bad string length in bson');
+            }
+            const functionString = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey);
+            value = new Code(functionString);
+            index = index + stringSize;
+        }
+        else if (elementType === BSON_DATA_CODE_W_SCOPE) {
+            const totalSize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            if (totalSize < 4 + 4 + 4 + 1) {
+                throw new BSONError('code_w_scope total size shorter minimum expected length');
+            }
+            const stringSize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            if (stringSize <= 0 ||
+                stringSize > buffer.length - index ||
+                buffer[index + stringSize - 1] !== 0) {
+                throw new BSONError('bad string length in bson');
+            }
+            const functionString = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey);
+            index = index + stringSize;
+            const _index = index;
+            const objectSize = NumberUtils.getInt32LE(buffer, index);
+            const scopeObject = deserializeObject(buffer, _index, options, false);
+            index = index + objectSize;
+            if (totalSize < 4 + 4 + objectSize + stringSize) {
+                throw new BSONError('code_w_scope total size is too short, truncating scope');
+            }
+            if (totalSize > 4 + 4 + objectSize + stringSize) {
+                throw new BSONError('code_w_scope total size is too long, clips outer document');
+            }
+            value = new Code(functionString, scopeObject);
+        }
+        else if (elementType === BSON_DATA_DBPOINTER) {
+            const stringSize = NumberUtils.getInt32LE(buffer, index);
+            index += 4;
+            if (stringSize <= 0 ||
+                stringSize > buffer.length - index ||
+                buffer[index + stringSize - 1] !== 0)
+                throw new BSONError('bad string length in bson');
+            const namespace = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey);
+            index = index + stringSize;
+            const oidBuffer = ByteUtils.allocateUnsafe(12);
+            for (let i = 0; i < 12; i++)
+                oidBuffer[i] = buffer[index + i];
+            const oid = new ObjectId(oidBuffer);
+            index = index + 12;
+            value = new DBRef(namespace, oid);
+        }
+        else {
+            throw new BSONError(`Detected unknown BSON type ${elementType.toString(16)} for fieldname "${name}"`);
+        }
+        if (name === '__proto__') {
+            Object.defineProperty(object, name, {
+                value,
+                writable: true,
+                enumerable: true,
+                configurable: true
+            });
+        }
+        else {
+            object[name] = value;
+        }
+    }
+    if (size !== index - startIndex) {
+        if (isArray)
+            throw new BSONError('corrupt array bson');
+        throw new BSONError('corrupt object bson');
+    }
+    if (!isPossibleDBRef)
+        return object;
+    if (isDBRefLike(object)) {
+        const copy = Object.assign({}, object);
+        delete copy.$ref;
+        delete copy.$id;
+        delete copy.$db;
+        return new DBRef(object.$ref, object.$id, object.$db, copy);
+    }
+    return object;
+}
+
+const regexp = /\x00/;
+const ignoreKeys = new Set(['$db', '$ref', '$id', '$clusterTime']);
+function serializeString(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_STRING;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes + 1;
+    buffer[index - 1] = 0;
+    const size = ByteUtils.encodeUTF8Into(buffer, value, index + 4);
+    NumberUtils.setInt32LE(buffer, index, size + 1);
+    index = index + 4 + size;
+    buffer[index++] = 0;
+    return index;
+}
+function serializeNumber(buffer, key, value, index) {
+    const isNegativeZero = Object.is(value, -0);
+    const type = !isNegativeZero &&
+        Number.isSafeInteger(value) &&
+        value <= BSON_INT32_MAX &&
+        value >= BSON_INT32_MIN
+        ? BSON_DATA_INT
+        : BSON_DATA_NUMBER;
+    buffer[index++] = type;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0x00;
+    if (type === BSON_DATA_INT) {
+        index += NumberUtils.setInt32LE(buffer, index, value);
+    }
+    else {
+        index += NumberUtils.setFloat64LE(buffer, index, value);
+    }
+    return index;
+}
+function serializeBigInt(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_LONG;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index += numberOfWrittenBytes;
+    buffer[index++] = 0;
+    index += NumberUtils.setBigInt64LE(buffer, index, value);
+    return index;
+}
+function serializeNull(buffer, key, _, index) {
+    buffer[index++] = BSON_DATA_NULL;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    return index;
+}
+function serializeBoolean(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_BOOLEAN;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    buffer[index++] = value ? 1 : 0;
+    return index;
+}
+function serializeDate(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_DATE;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const dateInMilis = Long.fromNumber(value.getTime());
+    const lowBits = dateInMilis.getLowBits();
+    const highBits = dateInMilis.getHighBits();
+    index += NumberUtils.setInt32LE(buffer, index, lowBits);
+    index += NumberUtils.setInt32LE(buffer, index, highBits);
+    return index;
+}
+function serializeRegExp(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_REGEXP;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    if (value.source && value.source.match(regexp) != null) {
+        throw new BSONError('value ' + value.source + ' must not contain null bytes');
+    }
+    index = index + ByteUtils.encodeUTF8Into(buffer, value.source, index);
+    buffer[index++] = 0x00;
+    if (value.ignoreCase)
+        buffer[index++] = 0x69;
+    if (value.global)
+        buffer[index++] = 0x73;
+    if (value.multiline)
+        buffer[index++] = 0x6d;
+    buffer[index++] = 0x00;
+    return index;
+}
+function serializeBSONRegExp(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_REGEXP;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    if (value.pattern.match(regexp) != null) {
+        throw new BSONError('pattern ' + value.pattern + ' must not contain null bytes');
+    }
+    index = index + ByteUtils.encodeUTF8Into(buffer, value.pattern, index);
+    buffer[index++] = 0x00;
+    const sortedOptions = value.options.split('').sort().join('');
+    index = index + ByteUtils.encodeUTF8Into(buffer, sortedOptions, index);
+    buffer[index++] = 0x00;
+    return index;
+}
+function serializeMinMax(buffer, key, value, index) {
+    if (value === null) {
+        buffer[index++] = BSON_DATA_NULL;
+    }
+    else if (value._bsontype === 'MinKey') {
+        buffer[index++] = BSON_DATA_MIN_KEY;
+    }
+    else {
+        buffer[index++] = BSON_DATA_MAX_KEY;
+    }
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    return index;
+}
+function serializeObjectId(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_OID;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    index += value.serializeInto(buffer, index);
+    return index;
+}
+function serializeBuffer(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_BINARY;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const size = value.length;
+    index += NumberUtils.setInt32LE(buffer, index, size);
+    buffer[index++] = BSON_BINARY_SUBTYPE_DEFAULT;
+    if (size <= 16) {
+        for (let i = 0; i < size; i++)
+            buffer[index + i] = value[i];
+    }
+    else {
+        buffer.set(value, index);
+    }
+    index = index + size;
+    return index;
+}
+function serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path) {
+    if (path.has(value)) {
+        throw new BSONError('Cannot convert circular structure to BSON');
+    }
+    path.add(value);
+    buffer[index++] = Array.isArray(value) ? BSON_DATA_ARRAY : BSON_DATA_OBJECT;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const endIndex = serializeInto(buffer, value, checkKeys, index, depth + 1, serializeFunctions, ignoreUndefined, path);
+    path.delete(value);
+    return endIndex;
+}
+function serializeDecimal128(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_DECIMAL128;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    for (let i = 0; i < 16; i++)
+        buffer[index + i] = value.bytes[i];
+    return index + 16;
+}
+function serializeLong(buffer, key, value, index) {
+    buffer[index++] =
+        value._bsontype === 'Long' ? BSON_DATA_LONG : BSON_DATA_TIMESTAMP;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const lowBits = value.getLowBits();
+    const highBits = value.getHighBits();
+    index += NumberUtils.setInt32LE(buffer, index, lowBits);
+    index += NumberUtils.setInt32LE(buffer, index, highBits);
+    return index;
+}
+function serializeInt32(buffer, key, value, index) {
+    value = value.valueOf();
+    buffer[index++] = BSON_DATA_INT;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    index += NumberUtils.setInt32LE(buffer, index, value);
+    return index;
+}
+function serializeDouble(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_NUMBER;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    index += NumberUtils.setFloat64LE(buffer, index, value.value);
+    return index;
+}
+function serializeFunction(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_CODE;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const functionString = value.toString();
+    const size = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1;
+    NumberUtils.setInt32LE(buffer, index, size);
+    index = index + 4 + size - 1;
+    buffer[index++] = 0;
+    return index;
+}
+function serializeCode(buffer, key, value, index, checkKeys = false, depth = 0, serializeFunctions = false, ignoreUndefined = true, path) {
+    if (value.scope && typeof value.scope === 'object') {
+        buffer[index++] = BSON_DATA_CODE_W_SCOPE;
+        const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+        index = index + numberOfWrittenBytes;
+        buffer[index++] = 0;
+        let startIndex = index;
+        const functionString = value.code;
+        index = index + 4;
+        const codeSize = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1;
+        NumberUtils.setInt32LE(buffer, index, codeSize);
+        buffer[index + 4 + codeSize - 1] = 0;
+        index = index + codeSize + 4;
+        const endIndex = serializeInto(buffer, value.scope, checkKeys, index, depth + 1, serializeFunctions, ignoreUndefined, path);
+        index = endIndex - 1;
+        const totalSize = endIndex - startIndex;
+        startIndex += NumberUtils.setInt32LE(buffer, startIndex, totalSize);
+        buffer[index++] = 0;
+    }
+    else {
+        buffer[index++] = BSON_DATA_CODE;
+        const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+        index = index + numberOfWrittenBytes;
+        buffer[index++] = 0;
+        const functionString = value.code.toString();
+        const size = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1;
+        NumberUtils.setInt32LE(buffer, index, size);
+        index = index + 4 + size - 1;
+        buffer[index++] = 0;
+    }
+    return index;
+}
+function serializeBinary(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_BINARY;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const data = value.buffer;
+    let size = value.position;
+    if (value.sub_type === Binary.SUBTYPE_BYTE_ARRAY)
+        size = size + 4;
+    index += NumberUtils.setInt32LE(buffer, index, size);
+    buffer[index++] = value.sub_type;
+    if (value.sub_type === Binary.SUBTYPE_BYTE_ARRAY) {
+        size = size - 4;
+        index += NumberUtils.setInt32LE(buffer, index, size);
+    }
+    if (value.sub_type === Binary.SUBTYPE_VECTOR) {
+        validateBinaryVector(value);
+    }
+    if (size <= 16) {
+        for (let i = 0; i < size; i++)
+            buffer[index + i] = data[i];
+    }
+    else {
+        buffer.set(data, index);
+    }
+    index = index + value.position;
+    return index;
+}
+function serializeSymbol(buffer, key, value, index) {
+    buffer[index++] = BSON_DATA_SYMBOL;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    const size = ByteUtils.encodeUTF8Into(buffer, value.value, index + 4) + 1;
+    NumberUtils.setInt32LE(buffer, index, size);
+    index = index + 4 + size - 1;
+    buffer[index++] = 0;
+    return index;
+}
+function serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path) {
+    buffer[index++] = BSON_DATA_OBJECT;
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    let startIndex = index;
+    let output = {
+        $ref: value.collection || value.namespace,
+        $id: value.oid
+    };
+    if (value.db != null) {
+        output.$db = value.db;
+    }
+    output = Object.assign(output, value.fields);
+    const endIndex = serializeInto(buffer, output, false, index, depth + 1, serializeFunctions, true, path);
+    const size = endIndex - startIndex;
+    startIndex += NumberUtils.setInt32LE(buffer, index, size);
+    return endIndex;
+}
+function serializeInto(buffer, object, checkKeys, startingIndex, depth, serializeFunctions, ignoreUndefined, path) {
+    if (path == null) {
+        if (object == null) {
+            buffer[0] = 0x05;
+            buffer[1] = 0x00;
+            buffer[2] = 0x00;
+            buffer[3] = 0x00;
+            buffer[4] = 0x00;
+            return 5;
+        }
+        if (Array.isArray(object)) {
+            throw new BSONError('serialize does not support an array as the root input');
+        }
+        if (typeof object !== 'object') {
+            throw new BSONError('serialize does not support non-object as the root input');
+        }
+        else if ('_bsontype' in object && typeof object._bsontype === 'string') {
+            throw new BSONError(`BSON types cannot be serialized as a document`);
+        }
+        else if (isDate(object) ||
+            isRegExp(object) ||
+            isUint8Array(object) ||
+            isAnyArrayBuffer(object)) {
+            throw new BSONError(`date, regexp, typedarray, and arraybuffer cannot be BSON documents`);
+        }
+        path = new Set();
+    }
+    path.add(object);
+    let index = startingIndex + 4;
+    if (Array.isArray(object)) {
+        for (let i = 0; i < object.length; i++) {
+            const key = `${i}`;
+            let value = object[i];
+            if (typeof value?.toBSON === 'function') {
+                value = value.toBSON();
+            }
+            const type = typeof value;
+            if (value === undefined) {
+                index = serializeNull(buffer, key, value, index);
+            }
+            else if (value === null) {
+                index = serializeNull(buffer, key, value, index);
+            }
+            else if (type === 'string') {
+                index = serializeString(buffer, key, value, index);
+            }
+            else if (type === 'number') {
+                index = serializeNumber(buffer, key, value, index);
+            }
+            else if (type === 'bigint') {
+                index = serializeBigInt(buffer, key, value, index);
+            }
+            else if (type === 'boolean') {
+                index = serializeBoolean(buffer, key, value, index);
+            }
+            else if (type === 'object' && value._bsontype == null) {
+                if (value instanceof Date || isDate(value)) {
+                    index = serializeDate(buffer, key, value, index);
+                }
+                else if (value instanceof Uint8Array || isUint8Array(value)) {
+                    index = serializeBuffer(buffer, key, value, index);
+                }
+                else if (value instanceof RegExp || isRegExp(value)) {
+                    index = serializeRegExp(buffer, key, value, index);
+                }
+                else {
+                    index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path);
+                }
+            }
+            else if (type === 'object') {
+                if (value[BSON_VERSION_SYMBOL] !== BSON_MAJOR_VERSION) {
+                    throw new BSONVersionError();
+                }
+                else if (value._bsontype === 'ObjectId') {
+                    index = serializeObjectId(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Decimal128') {
+                    index = serializeDecimal128(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') {
+                    index = serializeLong(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Double') {
+                    index = serializeDouble(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Code') {
+                    index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path);
+                }
+                else if (value._bsontype === 'Binary') {
+                    index = serializeBinary(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'BSONSymbol') {
+                    index = serializeSymbol(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'DBRef') {
+                    index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path);
+                }
+                else if (value._bsontype === 'BSONRegExp') {
+                    index = serializeBSONRegExp(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Int32') {
+                    index = serializeInt32(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') {
+                    index = serializeMinMax(buffer, key, value, index);
+                }
+                else if (typeof value._bsontype !== 'undefined') {
+                    throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`);
+                }
+            }
+            else if (type === 'function' && serializeFunctions) {
+                index = serializeFunction(buffer, key, value, index);
+            }
+        }
+    }
+    else if (object instanceof Map || isMap(object)) {
+        const iterator = object.entries();
+        let done = false;
+        while (!done) {
+            const entry = iterator.next();
+            done = !!entry.done;
+            if (done)
+                continue;
+            const key = entry.value[0];
+            let value = entry.value[1];
+            if (typeof value?.toBSON === 'function') {
+                value = value.toBSON();
+            }
+            const type = typeof value;
+            if (typeof key === 'string' && !ignoreKeys.has(key)) {
+                if (key.match(regexp) != null) {
+                    throw new BSONError('key ' + key + ' must not contain null bytes');
+                }
+                if (checkKeys) {
+                    if ('$' === key[0]) {
+                        throw new BSONError('key ' + key + " must not start with '$'");
+                    }
+                    else if (key.includes('.')) {
+                        throw new BSONError('key ' + key + " must not contain '.'");
+                    }
+                }
+            }
+            if (value === undefined) {
+                if (ignoreUndefined === false)
+                    index = serializeNull(buffer, key, value, index);
+            }
+            else if (value === null) {
+                index = serializeNull(buffer, key, value, index);
+            }
+            else if (type === 'string') {
+                index = serializeString(buffer, key, value, index);
+            }
+            else if (type === 'number') {
+                index = serializeNumber(buffer, key, value, index);
+            }
+            else if (type === 'bigint') {
+                index = serializeBigInt(buffer, key, value, index);
+            }
+            else if (type === 'boolean') {
+                index = serializeBoolean(buffer, key, value, index);
+            }
+            else if (type === 'object' && value._bsontype == null) {
+                if (value instanceof Date || isDate(value)) {
+                    index = serializeDate(buffer, key, value, index);
+                }
+                else if (value instanceof Uint8Array || isUint8Array(value)) {
+                    index = serializeBuffer(buffer, key, value, index);
+                }
+                else if (value instanceof RegExp || isRegExp(value)) {
+                    index = serializeRegExp(buffer, key, value, index);
+                }
+                else {
+                    index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path);
+                }
+            }
+            else if (type === 'object') {
+                if (value[BSON_VERSION_SYMBOL] !== BSON_MAJOR_VERSION) {
+                    throw new BSONVersionError();
+                }
+                else if (value._bsontype === 'ObjectId') {
+                    index = serializeObjectId(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Decimal128') {
+                    index = serializeDecimal128(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') {
+                    index = serializeLong(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Double') {
+                    index = serializeDouble(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Code') {
+                    index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path);
+                }
+                else if (value._bsontype === 'Binary') {
+                    index = serializeBinary(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'BSONSymbol') {
+                    index = serializeSymbol(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'DBRef') {
+                    index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path);
+                }
+                else if (value._bsontype === 'BSONRegExp') {
+                    index = serializeBSONRegExp(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Int32') {
+                    index = serializeInt32(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') {
+                    index = serializeMinMax(buffer, key, value, index);
+                }
+                else if (typeof value._bsontype !== 'undefined') {
+                    throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`);
+                }
+            }
+            else if (type === 'function' && serializeFunctions) {
+                index = serializeFunction(buffer, key, value, index);
+            }
+        }
+    }
+    else {
+        if (typeof object?.toBSON === 'function') {
+            object = object.toBSON();
+            if (object != null && typeof object !== 'object') {
+                throw new BSONError('toBSON function did not return an object');
+            }
+        }
+        for (const key of Object.keys(object)) {
+            let value = object[key];
+            if (typeof value?.toBSON === 'function') {
+                value = value.toBSON();
+            }
+            const type = typeof value;
+            if (typeof key === 'string' && !ignoreKeys.has(key)) {
+                if (key.match(regexp) != null) {
+                    throw new BSONError('key ' + key + ' must not contain null bytes');
+                }
+                if (checkKeys) {
+                    if ('$' === key[0]) {
+                        throw new BSONError('key ' + key + " must not start with '$'");
+                    }
+                    else if (key.includes('.')) {
+                        throw new BSONError('key ' + key + " must not contain '.'");
+                    }
+                }
+            }
+            if (value === undefined) {
+                if (ignoreUndefined === false)
+                    index = serializeNull(buffer, key, value, index);
+            }
+            else if (value === null) {
+                index = serializeNull(buffer, key, value, index);
+            }
+            else if (type === 'string') {
+                index = serializeString(buffer, key, value, index);
+            }
+            else if (type === 'number') {
+                index = serializeNumber(buffer, key, value, index);
+            }
+            else if (type === 'bigint') {
+                index = serializeBigInt(buffer, key, value, index);
+            }
+            else if (type === 'boolean') {
+                index = serializeBoolean(buffer, key, value, index);
+            }
+            else if (type === 'object' && value._bsontype == null) {
+                if (value instanceof Date || isDate(value)) {
+                    index = serializeDate(buffer, key, value, index);
+                }
+                else if (value instanceof Uint8Array || isUint8Array(value)) {
+                    index = serializeBuffer(buffer, key, value, index);
+                }
+                else if (value instanceof RegExp || isRegExp(value)) {
+                    index = serializeRegExp(buffer, key, value, index);
+                }
+                else {
+                    index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path);
+                }
+            }
+            else if (type === 'object') {
+                if (value[BSON_VERSION_SYMBOL] !== BSON_MAJOR_VERSION) {
+                    throw new BSONVersionError();
+                }
+                else if (value._bsontype === 'ObjectId') {
+                    index = serializeObjectId(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Decimal128') {
+                    index = serializeDecimal128(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') {
+                    index = serializeLong(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Double') {
+                    index = serializeDouble(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Code') {
+                    index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path);
+                }
+                else if (value._bsontype === 'Binary') {
+                    index = serializeBinary(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'BSONSymbol') {
+                    index = serializeSymbol(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'DBRef') {
+                    index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path);
+                }
+                else if (value._bsontype === 'BSONRegExp') {
+                    index = serializeBSONRegExp(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'Int32') {
+                    index = serializeInt32(buffer, key, value, index);
+                }
+                else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') {
+                    index = serializeMinMax(buffer, key, value, index);
+                }
+                else if (typeof value._bsontype !== 'undefined') {
+                    throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`);
+                }
+            }
+            else if (type === 'function' && serializeFunctions) {
+                index = serializeFunction(buffer, key, value, index);
+            }
+        }
+    }
+    path.delete(object);
+    buffer[index++] = 0x00;
+    const size = index - startingIndex;
+    startingIndex += NumberUtils.setInt32LE(buffer, startingIndex, size);
+    return index;
+}
+
+function isBSONType(value) {
+    return (value != null &&
+        typeof value === 'object' &&
+        '_bsontype' in value &&
+        typeof value._bsontype === 'string');
+}
+const keysToCodecs = {
+    $oid: ObjectId,
+    $binary: Binary,
+    $uuid: Binary,
+    $symbol: BSONSymbol,
+    $numberInt: Int32,
+    $numberDecimal: Decimal128,
+    $numberDouble: Double,
+    $numberLong: Long,
+    $minKey: MinKey,
+    $maxKey: MaxKey,
+    $regex: BSONRegExp,
+    $regularExpression: BSONRegExp,
+    $timestamp: Timestamp
+};
+function deserializeValue(value, options = {}) {
+    if (typeof value === 'number') {
+        const in32BitRange = value <= BSON_INT32_MAX && value >= BSON_INT32_MIN;
+        const in64BitRange = value <= BSON_INT64_MAX && value >= BSON_INT64_MIN;
+        if (options.relaxed || options.legacy) {
+            return value;
+        }
+        if (Number.isInteger(value) && !Object.is(value, -0)) {
+            if (in32BitRange) {
+                return new Int32(value);
+            }
+            if (in64BitRange) {
+                if (options.useBigInt64) {
+                    return BigInt(value);
+                }
+                return Long.fromNumber(value);
+            }
+        }
+        return new Double(value);
+    }
+    if (value == null || typeof value !== 'object')
+        return value;
+    if (value.$undefined)
+        return null;
+    const keys = Object.keys(value).filter(k => k.startsWith('$') && value[k] != null);
+    for (let i = 0; i < keys.length; i++) {
+        const c = keysToCodecs[keys[i]];
+        if (c)
+            return c.fromExtendedJSON(value, options);
+    }
+    if (value.$date != null) {
+        const d = value.$date;
+        const date = new Date();
+        if (options.legacy) {
+            if (typeof d === 'number')
+                date.setTime(d);
+            else if (typeof d === 'string')
+                date.setTime(Date.parse(d));
+            else if (typeof d === 'bigint')
+                date.setTime(Number(d));
+            else
+                throw new BSONRuntimeError(`Unrecognized type for EJSON date: ${typeof d}`);
+        }
+        else {
+            if (typeof d === 'string')
+                date.setTime(Date.parse(d));
+            else if (Long.isLong(d))
+                date.setTime(d.toNumber());
+            else if (typeof d === 'number' && options.relaxed)
+                date.setTime(d);
+            else if (typeof d === 'bigint')
+                date.setTime(Number(d));
+            else
+                throw new BSONRuntimeError(`Unrecognized type for EJSON date: ${typeof d}`);
+        }
+        return date;
+    }
+    if (value.$code != null) {
+        const copy = Object.assign({}, value);
+        if (value.$scope) {
+            copy.$scope = deserializeValue(value.$scope);
+        }
+        return Code.fromExtendedJSON(value);
+    }
+    if (isDBRefLike(value) || value.$dbPointer) {
+        const v = value.$ref ? value : value.$dbPointer;
+        if (v instanceof DBRef)
+            return v;
+        const dollarKeys = Object.keys(v).filter(k => k.startsWith('$'));
+        let valid = true;
+        dollarKeys.forEach(k => {
+            if (['$ref', '$id', '$db'].indexOf(k) === -1)
+                valid = false;
+        });
+        if (valid)
+            return DBRef.fromExtendedJSON(v);
+    }
+    return value;
+}
+function serializeArray(array, options) {
+    return array.map((v, index) => {
+        options.seenObjects.push({ propertyName: `index ${index}`, obj: null });
+        try {
+            return serializeValue(v, options);
+        }
+        finally {
+            options.seenObjects.pop();
+        }
+    });
+}
+function getISOString(date) {
+    const isoStr = date.toISOString();
+    return date.getUTCMilliseconds() !== 0 ? isoStr : isoStr.slice(0, -5) + 'Z';
+}
+function serializeValue(value, options) {
+    if (value instanceof Map || isMap(value)) {
+        const obj = Object.create(null);
+        for (const [k, v] of value) {
+            if (typeof k !== 'string') {
+                throw new BSONError('Can only serialize maps with string keys');
+            }
+            obj[k] = v;
+        }
+        return serializeValue(obj, options);
+    }
+    if ((typeof value === 'object' || typeof value === 'function') && value !== null) {
+        const index = options.seenObjects.findIndex(entry => entry.obj === value);
+        if (index !== -1) {
+            const props = options.seenObjects.map(entry => entry.propertyName);
+            const leadingPart = props
+                .slice(0, index)
+                .map(prop => `${prop} -> `)
+                .join('');
+            const alreadySeen = props[index];
+            const circularPart = ' -> ' +
+                props
+                    .slice(index + 1, props.length - 1)
+                    .map(prop => `${prop} -> `)
+                    .join('');
+            const current = props[props.length - 1];
+            const leadingSpace = ' '.repeat(leadingPart.length + alreadySeen.length / 2);
+            const dashes = '-'.repeat(circularPart.length + (alreadySeen.length + current.length) / 2 - 1);
+            throw new BSONError('Converting circular structure to EJSON:\n' +
+                `    ${leadingPart}${alreadySeen}${circularPart}${current}\n` +
+                `    ${leadingSpace}\\${dashes}/`);
+        }
+        options.seenObjects[options.seenObjects.length - 1].obj = value;
+    }
+    if (Array.isArray(value))
+        return serializeArray(value, options);
+    if (value === undefined)
+        return null;
+    if (value instanceof Date || isDate(value)) {
+        const dateNum = value.getTime(), inRange = dateNum > -1 && dateNum < 253402318800000;
+        if (options.legacy) {
+            return options.relaxed && inRange
+                ? { $date: value.getTime() }
+                : { $date: getISOString(value) };
+        }
+        return options.relaxed && inRange
+            ? { $date: getISOString(value) }
+            : { $date: { $numberLong: value.getTime().toString() } };
+    }
+    if (typeof value === 'number' && (!options.relaxed || !isFinite(value))) {
+        if (Number.isInteger(value) && !Object.is(value, -0)) {
+            if (value >= BSON_INT32_MIN && value <= BSON_INT32_MAX) {
+                return { $numberInt: value.toString() };
+            }
+            if (value >= BSON_INT64_MIN && value <= BSON_INT64_MAX) {
+                return { $numberLong: value.toString() };
+            }
+        }
+        return { $numberDouble: Object.is(value, -0) ? '-0.0' : value.toString() };
+    }
+    if (typeof value === 'bigint') {
+        if (!options.relaxed) {
+            return { $numberLong: BigInt.asIntN(64, value).toString() };
+        }
+        return Number(BigInt.asIntN(64, value));
+    }
+    if (value instanceof RegExp || isRegExp(value)) {
+        let flags = value.flags;
+        if (flags === undefined) {
+            const match = value.toString().match(/[gimuy]*$/);
+            if (match) {
+                flags = match[0];
+            }
+        }
+        const rx = new BSONRegExp(value.source, flags);
+        return rx.toExtendedJSON(options);
+    }
+    if (value != null && typeof value === 'object')
+        return serializeDocument(value, options);
+    return value;
+}
+const BSON_TYPE_MAPPINGS = {
+    Binary: (o) => new Binary(o.value(), o.sub_type),
+    Code: (o) => new Code(o.code, o.scope),
+    DBRef: (o) => new DBRef(o.collection || o.namespace, o.oid, o.db, o.fields),
+    Decimal128: (o) => new Decimal128(o.bytes),
+    Double: (o) => new Double(o.value),
+    Int32: (o) => new Int32(o.value),
+    Long: (o) => Long.fromBits(o.low != null ? o.low : o.low_, o.low != null ? o.high : o.high_, o.low != null ? o.unsigned : o.unsigned_),
+    MaxKey: () => new MaxKey(),
+    MinKey: () => new MinKey(),
+    ObjectId: (o) => new ObjectId(o),
+    BSONRegExp: (o) => new BSONRegExp(o.pattern, o.options),
+    BSONSymbol: (o) => new BSONSymbol(o.value),
+    Timestamp: (o) => Timestamp.fromBits(o.low, o.high)
+};
+function serializeDocument(doc, options) {
+    if (doc == null || typeof doc !== 'object')
+        throw new BSONError('not an object instance');
+    const bsontype = doc._bsontype;
+    if (typeof bsontype === 'undefined') {
+        const _doc = {};
+        for (const name of Object.keys(doc)) {
+            options.seenObjects.push({ propertyName: name, obj: null });
+            try {
+                const value = serializeValue(doc[name], options);
+                if (name === '__proto__') {
+                    Object.defineProperty(_doc, name, {
+                        value,
+                        writable: true,
+                        enumerable: true,
+                        configurable: true
+                    });
+                }
+                else {
+                    _doc[name] = value;
+                }
+            }
+            finally {
+                options.seenObjects.pop();
+            }
+        }
+        return _doc;
+    }
+    else if (doc != null &&
+        typeof doc === 'object' &&
+        typeof doc._bsontype === 'string' &&
+        doc[BSON_VERSION_SYMBOL] !== BSON_MAJOR_VERSION) {
+        throw new BSONVersionError();
+    }
+    else if (isBSONType(doc)) {
+        let outDoc = doc;
+        if (typeof outDoc.toExtendedJSON !== 'function') {
+            const mapper = BSON_TYPE_MAPPINGS[doc._bsontype];
+            if (!mapper) {
+                throw new BSONError('Unrecognized or invalid _bsontype: ' + doc._bsontype);
+            }
+            outDoc = mapper(outDoc);
+        }
+        if (bsontype === 'Code' && outDoc.scope) {
+            outDoc = new Code(outDoc.code, serializeValue(outDoc.scope, options));
+        }
+        else if (bsontype === 'DBRef' && outDoc.oid) {
+            outDoc = new DBRef(serializeValue(outDoc.collection, options), serializeValue(outDoc.oid, options), serializeValue(outDoc.db, options), serializeValue(outDoc.fields, options));
+        }
+        return outDoc.toExtendedJSON(options);
+    }
+    else {
+        throw new BSONError('_bsontype must be a string, but was: ' + typeof bsontype);
+    }
+}
+function parse(text, options) {
+    const ejsonOptions = {
+        useBigInt64: options?.useBigInt64 ?? false,
+        relaxed: options?.relaxed ?? true,
+        legacy: options?.legacy ?? false
+    };
+    return JSON.parse(text, (key, value) => {
+        if (key.indexOf('\x00') !== -1) {
+            throw new BSONError(`BSON Document field names cannot contain null bytes, found: ${JSON.stringify(key)}`);
+        }
+        return deserializeValue(value, ejsonOptions);
+    });
+}
+function stringify(value, replacer, space, options) {
+    if (space != null && typeof space === 'object') {
+        options = space;
+        space = 0;
+    }
+    if (replacer != null && typeof replacer === 'object' && !Array.isArray(replacer)) {
+        options = replacer;
+        replacer = undefined;
+        space = 0;
+    }
+    const serializeOptions = Object.assign({ relaxed: true, legacy: false }, options, {
+        seenObjects: [{ propertyName: '(root)', obj: null }]
+    });
+    const doc = serializeValue(value, serializeOptions);
+    return JSON.stringify(doc, replacer, space);
+}
+function EJSONserialize(value, options) {
+    options = options || {};
+    return JSON.parse(stringify(value, options));
+}
+function EJSONdeserialize(ejson, options) {
+    options = options || {};
+    return parse(JSON.stringify(ejson), options);
+}
+const EJSON = Object.create(null);
+EJSON.parse = parse;
+EJSON.stringify = stringify;
+EJSON.serialize = EJSONserialize;
+EJSON.deserialize = EJSONdeserialize;
+Object.freeze(EJSON);
+
+function getSize(source, offset) {
+    try {
+        return NumberUtils.getNonnegativeInt32LE(source, offset);
+    }
+    catch (cause) {
+        throw new BSONOffsetError('BSON size cannot be negative', offset, { cause });
+    }
+}
+function findNull(bytes, offset) {
+    let nullTerminatorOffset = offset;
+    for (; bytes[nullTerminatorOffset] !== 0x00; nullTerminatorOffset++)
+        ;
+    if (nullTerminatorOffset === bytes.length - 1) {
+        throw new BSONOffsetError('Null terminator not found', offset);
+    }
+    return nullTerminatorOffset;
+}
+function parseToElements(bytes, startOffset = 0) {
+    startOffset ??= 0;
+    if (bytes.length < 5) {
+        throw new BSONOffsetError(`Input must be at least 5 bytes, got ${bytes.length} bytes`, startOffset);
+    }
+    const documentSize = getSize(bytes, startOffset);
+    if (documentSize > bytes.length - startOffset) {
+        throw new BSONOffsetError(`Parsed documentSize (${documentSize} bytes) does not match input length (${bytes.length} bytes)`, startOffset);
+    }
+    if (bytes[startOffset + documentSize - 1] !== 0x00) {
+        throw new BSONOffsetError('BSON documents must end in 0x00', startOffset + documentSize);
+    }
+    const elements = [];
+    let offset = startOffset + 4;
+    while (offset <= documentSize + startOffset) {
+        const type = bytes[offset];
+        offset += 1;
+        if (type === 0) {
+            if (offset - startOffset !== documentSize) {
+                throw new BSONOffsetError(`Invalid 0x00 type byte`, offset);
+            }
+            break;
+        }
+        const nameOffset = offset;
+        const nameLength = findNull(bytes, offset) - nameOffset;
+        offset += nameLength + 1;
+        let length;
+        if (type === 1 ||
+            type === 18 ||
+            type === 9 ||
+            type === 17) {
+            length = 8;
+        }
+        else if (type === 16) {
+            length = 4;
+        }
+        else if (type === 7) {
+            length = 12;
+        }
+        else if (type === 19) {
+            length = 16;
+        }
+        else if (type === 8) {
+            length = 1;
+        }
+        else if (type === 10 ||
+            type === 6 ||
+            type === 127 ||
+            type === 255) {
+            length = 0;
+        }
+        else if (type === 11) {
+            length = findNull(bytes, findNull(bytes, offset) + 1) + 1 - offset;
+        }
+        else if (type === 3 ||
+            type === 4 ||
+            type === 15) {
+            length = getSize(bytes, offset);
+        }
+        else if (type === 2 ||
+            type === 5 ||
+            type === 12 ||
+            type === 13 ||
+            type === 14) {
+            length = getSize(bytes, offset) + 4;
+            if (type === 5) {
+                length += 1;
+            }
+            if (type === 12) {
+                length += 12;
+            }
+        }
+        else {
+            throw new BSONOffsetError(`Invalid 0x${type.toString(16).padStart(2, '0')} type byte`, offset);
+        }
+        if (length > documentSize) {
+            throw new BSONOffsetError('value reports length larger than document', offset);
+        }
+        elements.push([type, nameOffset, nameLength, offset, length]);
+        offset += length;
+    }
+    return elements;
+}
+
+const onDemand = Object.create(null);
+onDemand.parseToElements = parseToElements;
+onDemand.ByteUtils = ByteUtils;
+onDemand.NumberUtils = NumberUtils;
+Object.freeze(onDemand);
+
+const MAXSIZE = 1024 * 1024 * 17;
+let buffer = ByteUtils.allocate(MAXSIZE);
+function setInternalBufferSize(size) {
+    if (buffer.length < size) {
+        buffer = ByteUtils.allocate(size);
+    }
+}
+function serialize(object, options = {}) {
+    const checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false;
+    const serializeFunctions = typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false;
+    const ignoreUndefined = typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true;
+    const minInternalBufferSize = typeof options.minInternalBufferSize === 'number' ? options.minInternalBufferSize : MAXSIZE;
+    if (buffer.length < minInternalBufferSize) {
+        buffer = ByteUtils.allocate(minInternalBufferSize);
+    }
+    const serializationIndex = serializeInto(buffer, object, checkKeys, 0, 0, serializeFunctions, ignoreUndefined, null);
+    const finishedBuffer = ByteUtils.allocateUnsafe(serializationIndex);
+    finishedBuffer.set(buffer.subarray(0, serializationIndex), 0);
+    return finishedBuffer;
+}
+function serializeWithBufferAndIndex(object, finalBuffer, options = {}) {
+    const checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false;
+    const serializeFunctions = typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false;
+    const ignoreUndefined = typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true;
+    const startIndex = typeof options.index === 'number' ? options.index : 0;
+    const serializationIndex = serializeInto(buffer, object, checkKeys, 0, 0, serializeFunctions, ignoreUndefined, null);
+    finalBuffer.set(buffer.subarray(0, serializationIndex), startIndex);
+    return startIndex + serializationIndex - 1;
+}
+function deserialize(buffer, options = {}) {
+    return internalDeserialize(ByteUtils.toLocalBufferType(buffer), options);
+}
+function calculateObjectSize(object, options = {}) {
+    options = options || {};
+    const serializeFunctions = typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false;
+    const ignoreUndefined = typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true;
+    return internalCalculateObjectSize(object, serializeFunctions, ignoreUndefined);
+}
+function deserializeStream(data, startIndex, numberOfDocuments, documents, docStartIndex, options) {
+    const internalOptions = Object.assign({ allowObjectSmallerThanBufferSize: true, index: 0 }, options);
+    const bufferData = ByteUtils.toLocalBufferType(data);
+    let index = startIndex;
+    for (let i = 0; i < numberOfDocuments; i++) {
+        const size = NumberUtils.getInt32LE(bufferData, index);
+        internalOptions.index = index;
+        documents[docStartIndex + i] = internalDeserialize(bufferData, internalOptions);
+        index = index + size;
+    }
+    return index;
+}
+
+var bson = /*#__PURE__*/Object.freeze({
+    __proto__: null,
+    BSONError: BSONError,
+    BSONOffsetError: BSONOffsetError,
+    BSONRegExp: BSONRegExp,
+    BSONRuntimeError: BSONRuntimeError,
+    BSONSymbol: BSONSymbol,
+    BSONType: BSONType,
+    BSONValue: BSONValue,
+    BSONVersionError: BSONVersionError,
+    Binary: Binary,
+    Code: Code,
+    DBRef: DBRef,
+    Decimal128: Decimal128,
+    Double: Double,
+    EJSON: EJSON,
+    Int32: Int32,
+    Long: Long,
+    MaxKey: MaxKey,
+    MinKey: MinKey,
+    ObjectId: ObjectId,
+    Timestamp: Timestamp,
+    UUID: UUID,
+    calculateObjectSize: calculateObjectSize,
+    deserialize: deserialize,
+    deserializeStream: deserializeStream,
+    onDemand: onDemand,
+    serialize: serialize,
+    serializeWithBufferAndIndex: serializeWithBufferAndIndex,
+    setInternalBufferSize: setInternalBufferSize
+});
+
+exports.BSON = bson;
+exports.BSONError = BSONError;
+exports.BSONOffsetError = BSONOffsetError;
+exports.BSONRegExp = BSONRegExp;
+exports.BSONRuntimeError = BSONRuntimeError;
+exports.BSONSymbol = BSONSymbol;
+exports.BSONType = BSONType;
+exports.BSONValue = BSONValue;
+exports.BSONVersionError = BSONVersionError;
+exports.Binary = Binary;
+exports.Code = Code;
+exports.DBRef = DBRef;
+exports.Decimal128 = Decimal128;
+exports.Double = Double;
+exports.EJSON = EJSON;
+exports.Int32 = Int32;
+exports.Long = Long;
+exports.MaxKey = MaxKey;
+exports.MinKey = MinKey;
+exports.ObjectId = ObjectId;
+exports.Timestamp = Timestamp;
+exports.UUID = UUID;
+exports.calculateObjectSize = calculateObjectSize;
+exports.deserialize = deserialize;
+exports.deserializeStream = deserializeStream;
+exports.onDemand = onDemand;
+exports.serialize = serialize;
+exports.serializeWithBufferAndIndex = serializeWithBufferAndIndex;
+exports.setInternalBufferSize = setInternalBufferSize;
+//# sourceMappingURL=bson.rn.cjs.map
diff --git a/backend/node_modules/bson/lib/bson.rn.cjs.map b/backend/node_modules/bson/lib/bson.rn.cjs.map
new file mode 100644
index 0000000..dec02aa
--- /dev/null
+++ b/backend/node_modules/bson/lib/bson.rn.cjs.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/bson/package.json b/backend/node_modules/bson/package.json
new file mode 100644
index 0000000..455777f
--- /dev/null
+++ b/backend/node_modules/bson/package.json
@@ -0,0 +1,119 @@
+{
+  "name": "bson",
+  "description": "A bson parser for node.js and the browser",
+  "keywords": [
+    "mongodb",
+    "bson",
+    "parser"
+  ],
+  "files": [
+    "lib",
+    "src",
+    "bson.d.ts",
+    "etc/prepare.js",
+    "vendor"
+  ],
+  "types": "bson.d.ts",
+  "version": "6.10.2",
+  "author": {
+    "name": "The MongoDB NodeJS Team",
+    "email": "dbx-node@mongodb.com"
+  },
+  "license": "Apache-2.0",
+  "contributors": [],
+  "repository": "mongodb/js-bson",
+  "bugs": {
+    "url": "https://jira.mongodb.org/projects/NODE/issues/"
+  },
+  "devDependencies": {
+    "@istanbuljs/nyc-config-typescript": "^1.0.2",
+    "@microsoft/api-extractor": "^7.47.5",
+    "@rollup/plugin-node-resolve": "^15.2.3",
+    "@rollup/plugin-typescript": "^11.1.6",
+    "@types/chai": "^4.3.17",
+    "@types/mocha": "^10.0.7",
+    "@types/node": "^22.1.0",
+    "@types/sinon": "^17.0.3",
+    "@types/sinon-chai": "^3.2.12",
+    "@typescript-eslint/eslint-plugin": "^8.0.1",
+    "@typescript-eslint/parser": "^8.0.1",
+    "benchmark": "^2.1.4",
+    "chai": "^4.4.1",
+    "chalk": "^5.3.0",
+    "dbx-js-tools": "github:mongodb-js/dbx-js-tools",
+    "eslint": "^9.8.0",
+    "eslint-config-prettier": "^9.1.0",
+    "eslint-plugin-no-bigint-usage": "file:etc/eslint/no-bigint-usage",
+    "eslint-plugin-prettier": "^5.2.1",
+    "eslint-plugin-tsdoc": "^0.3.0",
+    "magic-string": "^0.30.11",
+    "mocha": "^10.7.0",
+    "node-fetch": "^3.3.2",
+    "nyc": "^15.1.0",
+    "prettier": "^3.3.3",
+    "rollup": "^4.20.0",
+    "sinon": "^18.0.0",
+    "sinon-chai": "^3.7.0",
+    "source-map-support": "^0.5.21",
+    "tar": "^7.4.3",
+    "ts-node": "^10.9.2",
+    "tsd": "^0.31.1",
+    "typescript": "^5.5.4",
+    "typescript-cached-transpile": "0.0.6",
+    "uuid": "^10.0.0"
+  },
+  "tsd": {
+    "directory": "test/types",
+    "compilerOptions": {
+      "strict": true,
+      "target": "esnext",
+      "module": "commonjs",
+      "moduleResolution": "node"
+    }
+  },
+  "config": {
+    "native": false
+  },
+  "main": "./lib/bson.cjs",
+  "module": "./lib/bson.mjs",
+  "exports": {
+    "import": {
+      "types": "./bson.d.ts",
+      "default": "./lib/bson.mjs"
+    },
+    "require": {
+      "types": "./bson.d.ts",
+      "default": "./lib/bson.cjs"
+    },
+    "react-native": "./lib/bson.rn.cjs",
+    "browser": "./lib/bson.mjs"
+  },
+  "compass:exports": {
+    "import": "./lib/bson.cjs",
+    "require": "./lib/bson.cjs"
+  },
+  "engines": {
+    "node": ">=16.20.1"
+  },
+  "scripts": {
+    "pretest": "npm run build",
+    "test": "npm run check:node && npm run check:web && npm run check:web-no-bigint",
+    "check:node": "WEB=false mocha test/node",
+    "check:tsd": "npm run build:dts && tsd",
+    "check:web": "WEB=true mocha test/node",
+    "check:web-no-bigint": "WEB=true NO_BIGINT=true mocha test/node",
+    "check:granular-bench": "npm run build:bench && node ./test/bench/etc/run_granular_benchmarks.js",
+    "check:spec-bench": "npm run build:bench && node ./test/bench/lib/spec/bsonBench.js",
+    "check:custom-bench": "npm run build && node ./test/bench/custom/main.mjs",
+    "build:bench": "cd test/bench && npx tsc",
+    "build:ts": "node ./node_modules/typescript/bin/tsc",
+    "build:dts": "npm run build:ts && api-extractor run --typescript-compiler-folder node_modules/typescript --local && node etc/clean_definition_files.cjs",
+    "build:bundle": "rollup -c rollup.config.mjs",
+    "build": "npm run build:dts && npm run build:bundle",
+    "check:lint": "ESLINT_USE_FLAT_CONFIG=false eslint -v && ESLINT_USE_FLAT_CONFIG=false eslint --ext '.js,.ts' --max-warnings=0 src test && npm run build:dts && npm run check:tsd",
+    "format": "eslint --ext '.js,.ts' src test --fix",
+    "check:coverage": "nyc --check-coverage npm run check:node",
+    "prepare": "node etc/prepare.js",
+    "release": "standard-version -i HISTORY.md"
+  }
+}
diff --git a/backend/node_modules/bson/src/binary.ts b/backend/node_modules/bson/src/binary.ts
new file mode 100644
index 0000000..1fe0980
--- /dev/null
+++ b/backend/node_modules/bson/src/binary.ts
@@ -0,0 +1,728 @@
+import { type InspectFn, defaultInspect, isAnyArrayBuffer, isUint8Array } from './parser/utils';
+import type { EJSONOptions } from './extended_json';
+import { BSONError } from './error';
+import { BSON_BINARY_SUBTYPE_UUID_NEW } from './constants';
+import { ByteUtils } from './utils/byte_utils';
+import { BSONValue } from './bson_value';
+import { NumberUtils } from './utils/number_utils';
+
+/** @public */
+export type BinarySequence = Uint8Array | number[];
+
+/** @public */
+export interface BinaryExtendedLegacy {
+  $type: string;
+  $binary: string;
+}
+
+/** @public */
+export interface BinaryExtended {
+  $binary: {
+    subType: string;
+    base64: string;
+  };
+}
+
+/**
+ * A class representation of the BSON Binary type.
+ * @public
+ * @category BSONType
+ */
+export class Binary extends BSONValue {
+  get _bsontype(): 'Binary' {
+    return 'Binary';
+  }
+
+  /**
+   * Binary default subtype
+   * @internal
+   */
+  private static readonly BSON_BINARY_SUBTYPE_DEFAULT = 0;
+
+  /** Initial buffer default size */
+  static readonly BUFFER_SIZE = 256;
+  /** Default BSON type */
+  static readonly SUBTYPE_DEFAULT = 0;
+  /** Function BSON type */
+  static readonly SUBTYPE_FUNCTION = 1;
+  /** Byte Array BSON type */
+  static readonly SUBTYPE_BYTE_ARRAY = 2;
+  /** Deprecated UUID BSON type @deprecated Please use SUBTYPE_UUID */
+  static readonly SUBTYPE_UUID_OLD = 3;
+  /** UUID BSON type */
+  static readonly SUBTYPE_UUID = 4;
+  /** MD5 BSON type */
+  static readonly SUBTYPE_MD5 = 5;
+  /** Encrypted BSON type */
+  static readonly SUBTYPE_ENCRYPTED = 6;
+  /** Column BSON type */
+  static readonly SUBTYPE_COLUMN = 7;
+  /** Sensitive BSON type */
+  static readonly SUBTYPE_SENSITIVE = 8;
+  /** Vector BSON type */
+  static readonly SUBTYPE_VECTOR = 9;
+  /** User BSON type */
+  static readonly SUBTYPE_USER_DEFINED = 128;
+
+  /** datatype of a Binary Vector (subtype: 9) */
+  static readonly VECTOR_TYPE = Object.freeze({
+    Int8: 0x03,
+    Float32: 0x27,
+    PackedBit: 0x10
+  } as const);
+
+  /**
+   * The bytes of the Binary value.
+   *
+   * The format of a Binary value in BSON is defined as:
+   * ```txt
+   * binary	::= int32 subtype (byte*)
+   * ```
+   *
+   * This `buffer` is the "(byte*)" segment.
+   *
+   * Unless the value is subtype 2, then deserialize will read the first 4 bytes as an int32 and set this to the remaining bytes.
+   *
+   * ```txt
+   * binary	::= int32 unsigned_byte(2) int32 (byte*)
+   * ```
+   *
+   * @see https://bsonspec.org/spec.html
+   */
+  public buffer: Uint8Array;
+  /**
+   * The binary subtype.
+   *
+   * Current defined values are:
+   *
+   * - `unsigned_byte(0)` Generic binary subtype
+   * - `unsigned_byte(1)` Function
+   * - `unsigned_byte(2)` Binary (Deprecated)
+   * - `unsigned_byte(3)` UUID (Deprecated)
+   * - `unsigned_byte(4)` UUID
+   * - `unsigned_byte(5)` MD5
+   * - `unsigned_byte(6)` Encrypted BSON value
+   * - `unsigned_byte(7)` Compressed BSON column
+   * - `unsigned_byte(8)` Sensitive
+   * - `unsigned_byte(9)` Vector
+   * - `unsigned_byte(128)` - `unsigned_byte(255)` User defined
+   */
+  public sub_type: number;
+  /**
+   * The Binary's `buffer` can be larger than the Binary's content.
+   * This property is used to determine where the content ends in the buffer.
+   */
+  public position: number;
+
+  /**
+   * Create a new Binary instance.
+   * @param buffer - a buffer object containing the binary data.
+   * @param subType - the option binary type.
+   */
+  constructor(buffer?: BinarySequence, subType?: number) {
+    super();
+    if (
+      !(buffer == null) &&
+      typeof buffer === 'string' &&
+      !ArrayBuffer.isView(buffer) &&
+      !isAnyArrayBuffer(buffer) &&
+      !Array.isArray(buffer)
+    ) {
+      throw new BSONError('Binary can only be constructed from Uint8Array or number[]');
+    }
+
+    this.sub_type = subType ?? Binary.BSON_BINARY_SUBTYPE_DEFAULT;
+
+    if (buffer == null) {
+      // create an empty binary buffer
+      this.buffer = ByteUtils.allocate(Binary.BUFFER_SIZE);
+      this.position = 0;
+    } else {
+      this.buffer = Array.isArray(buffer)
+        ? ByteUtils.fromNumberArray(buffer)
+        : ByteUtils.toLocalBufferType(buffer);
+      this.position = this.buffer.byteLength;
+    }
+  }
+
+  /**
+   * Updates this binary with byte_value.
+   *
+   * @param byteValue - a single byte we wish to write.
+   */
+  put(byteValue: string | number | Uint8Array | number[]): void {
+    // If it's a string and a has more than one character throw an error
+    if (typeof byteValue === 'string' && byteValue.length !== 1) {
+      throw new BSONError('only accepts single character String');
+    } else if (typeof byteValue !== 'number' && byteValue.length !== 1)
+      throw new BSONError('only accepts single character Uint8Array or Array');
+
+    // Decode the byte value once
+    let decodedByte: number;
+    if (typeof byteValue === 'string') {
+      decodedByte = byteValue.charCodeAt(0);
+    } else if (typeof byteValue === 'number') {
+      decodedByte = byteValue;
+    } else {
+      decodedByte = byteValue[0];
+    }
+
+    if (decodedByte < 0 || decodedByte > 255) {
+      throw new BSONError('only accepts number in a valid unsigned byte range 0-255');
+    }
+
+    if (this.buffer.byteLength > this.position) {
+      this.buffer[this.position++] = decodedByte;
+    } else {
+      const newSpace = ByteUtils.allocate(Binary.BUFFER_SIZE + this.buffer.length);
+      newSpace.set(this.buffer, 0);
+      this.buffer = newSpace;
+      this.buffer[this.position++] = decodedByte;
+    }
+  }
+
+  /**
+   * Writes a buffer to the binary.
+   *
+   * @param sequence - a string or buffer to be written to the Binary BSON object.
+   * @param offset - specify the binary of where to write the content.
+   */
+  write(sequence: BinarySequence, offset: number): void {
+    offset = typeof offset === 'number' ? offset : this.position;
+
+    // If the buffer is to small let's extend the buffer
+    if (this.buffer.byteLength < offset + sequence.length) {
+      const newSpace = ByteUtils.allocate(this.buffer.byteLength + sequence.length);
+      newSpace.set(this.buffer, 0);
+
+      // Assign the new buffer
+      this.buffer = newSpace;
+    }
+
+    if (ArrayBuffer.isView(sequence)) {
+      this.buffer.set(ByteUtils.toLocalBufferType(sequence), offset);
+      this.position =
+        offset + sequence.byteLength > this.position ? offset + sequence.length : this.position;
+    } else if (typeof sequence === 'string') {
+      throw new BSONError('input cannot be string');
+    }
+  }
+
+  /**
+   * Returns a view of **length** bytes starting at **position**.
+   *
+   * @param position - read from the given position in the Binary.
+   * @param length - the number of bytes to read.
+   */
+  read(position: number, length: number): Uint8Array {
+    length = length && length > 0 ? length : this.position;
+    const end = position + length;
+    return this.buffer.subarray(position, end > this.position ? this.position : end);
+  }
+
+  /** returns a view of the binary value as a Uint8Array */
+  value(): Uint8Array {
+    // Optimize to serialize for the situation where the data == size of buffer
+    return this.buffer.length === this.position
+      ? this.buffer
+      : this.buffer.subarray(0, this.position);
+  }
+
+  /** the length of the binary sequence */
+  length(): number {
+    return this.position;
+  }
+
+  toJSON(): string {
+    return ByteUtils.toBase64(this.buffer.subarray(0, this.position));
+  }
+
+  toString(encoding?: 'hex' | 'base64' | 'utf8' | 'utf-8'): string {
+    if (encoding === 'hex') return ByteUtils.toHex(this.buffer.subarray(0, this.position));
+    if (encoding === 'base64') return ByteUtils.toBase64(this.buffer.subarray(0, this.position));
+    if (encoding === 'utf8' || encoding === 'utf-8')
+      return ByteUtils.toUTF8(this.buffer, 0, this.position, false);
+    return ByteUtils.toUTF8(this.buffer, 0, this.position, false);
+  }
+
+  /** @internal */
+  toExtendedJSON(options?: EJSONOptions): BinaryExtendedLegacy | BinaryExtended {
+    options = options || {};
+
+    if (this.sub_type === Binary.SUBTYPE_VECTOR) {
+      validateBinaryVector(this);
+    }
+
+    const base64String = ByteUtils.toBase64(this.buffer);
+
+    const subType = Number(this.sub_type).toString(16);
+    if (options.legacy) {
+      return {
+        $binary: base64String,
+        $type: subType.length === 1 ? '0' + subType : subType
+      };
+    }
+    return {
+      $binary: {
+        base64: base64String,
+        subType: subType.length === 1 ? '0' + subType : subType
+      }
+    };
+  }
+
+  toUUID(): UUID {
+    if (this.sub_type === Binary.SUBTYPE_UUID) {
+      return new UUID(this.buffer.subarray(0, this.position));
+    }
+
+    throw new BSONError(
+      `Binary sub_type "${this.sub_type}" is not supported for converting to UUID. Only "${Binary.SUBTYPE_UUID}" is currently supported.`
+    );
+  }
+
+  /** Creates an Binary instance from a hex digit string */
+  static createFromHexString(hex: string, subType?: number): Binary {
+    return new Binary(ByteUtils.fromHex(hex), subType);
+  }
+
+  /** Creates an Binary instance from a base64 string */
+  static createFromBase64(base64: string, subType?: number): Binary {
+    return new Binary(ByteUtils.fromBase64(base64), subType);
+  }
+
+  /** @internal */
+  static fromExtendedJSON(
+    doc: BinaryExtendedLegacy | BinaryExtended | UUIDExtended,
+    options?: EJSONOptions
+  ): Binary {
+    options = options || {};
+    let data: Uint8Array | undefined;
+    let type;
+    if ('$binary' in doc) {
+      if (options.legacy && typeof doc.$binary === 'string' && '$type' in doc) {
+        type = doc.$type ? parseInt(doc.$type, 16) : 0;
+        data = ByteUtils.fromBase64(doc.$binary);
+      } else {
+        if (typeof doc.$binary !== 'string') {
+          type = doc.$binary.subType ? parseInt(doc.$binary.subType, 16) : 0;
+          data = ByteUtils.fromBase64(doc.$binary.base64);
+        }
+      }
+    } else if ('$uuid' in doc) {
+      type = 4;
+      data = UUID.bytesFromString(doc.$uuid);
+    }
+    if (!data) {
+      throw new BSONError(`Unexpected Binary Extended JSON format ${JSON.stringify(doc)}`);
+    }
+    return type === BSON_BINARY_SUBTYPE_UUID_NEW ? new UUID(data) : new Binary(data, type);
+  }
+
+  inspect(depth?: number, options?: unknown, inspect?: InspectFn): string {
+    inspect ??= defaultInspect;
+    const base64 = ByteUtils.toBase64(this.buffer.subarray(0, this.position));
+    const base64Arg = inspect(base64, options);
+    const subTypeArg = inspect(this.sub_type, options);
+    return `Binary.createFromBase64(${base64Arg}, ${subTypeArg})`;
+  }
+
+  /**
+   * If this Binary represents a Int8 Vector (`binary.buffer[0] === Binary.VECTOR_TYPE.Int8`),
+   * returns a copy of the bytes in a new Int8Array.
+   *
+   * If the Binary is not a Vector, or the datatype is not Int8, an error is thrown.
+   */
+  public toInt8Array(): Int8Array {
+    if (this.sub_type !== Binary.SUBTYPE_VECTOR) {
+      throw new BSONError('Binary sub_type is not Vector');
+    }
+
+    if (this.buffer[0] !== Binary.VECTOR_TYPE.Int8) {
+      throw new BSONError('Binary datatype field is not Int8');
+    }
+
+    return new Int8Array(
+      this.buffer.buffer.slice(this.buffer.byteOffset + 2, this.buffer.byteOffset + this.position)
+    );
+  }
+
+  /**
+   * If this Binary represents a Float32 Vector (`binary.buffer[0] === Binary.VECTOR_TYPE.Float32`),
+   * returns a copy of the bytes in a new Float32Array.
+   *
+   * If the Binary is not a Vector, or the datatype is not Float32, an error is thrown.
+   */
+  public toFloat32Array(): Float32Array {
+    if (this.sub_type !== Binary.SUBTYPE_VECTOR) {
+      throw new BSONError('Binary sub_type is not Vector');
+    }
+
+    if (this.buffer[0] !== Binary.VECTOR_TYPE.Float32) {
+      throw new BSONError('Binary datatype field is not Float32');
+    }
+
+    const floatBytes = new Uint8Array(
+      this.buffer.buffer.slice(this.buffer.byteOffset + 2, this.buffer.byteOffset + this.position)
+    );
+
+    if (NumberUtils.isBigEndian) ByteUtils.swap32(floatBytes);
+
+    return new Float32Array(floatBytes.buffer);
+  }
+
+  /**
+   * If this Binary represents packed bit Vector (`binary.buffer[0] === Binary.VECTOR_TYPE.PackedBit`),
+   * returns a copy of the bytes that are packed bits.
+   *
+   * Use `toBits` to get the unpacked bits.
+   *
+   * If the Binary is not a Vector, or the datatype is not PackedBit, an error is thrown.
+   */
+  public toPackedBits(): Uint8Array {
+    if (this.sub_type !== Binary.SUBTYPE_VECTOR) {
+      throw new BSONError('Binary sub_type is not Vector');
+    }
+
+    if (this.buffer[0] !== Binary.VECTOR_TYPE.PackedBit) {
+      throw new BSONError('Binary datatype field is not packed bit');
+    }
+
+    return new Uint8Array(
+      this.buffer.buffer.slice(this.buffer.byteOffset + 2, this.buffer.byteOffset + this.position)
+    );
+  }
+
+  /**
+   * If this Binary represents a Packed bit Vector (`binary.buffer[0] === Binary.VECTOR_TYPE.PackedBit`),
+   * returns a copy of the bit unpacked into a new Int8Array.
+   *
+   * Use `toPackedBits` to get the bits still in packed form.
+   *
+   * If the Binary is not a Vector, or the datatype is not PackedBit, an error is thrown.
+   */
+  public toBits(): Int8Array {
+    if (this.sub_type !== Binary.SUBTYPE_VECTOR) {
+      throw new BSONError('Binary sub_type is not Vector');
+    }
+
+    if (this.buffer[0] !== Binary.VECTOR_TYPE.PackedBit) {
+      throw new BSONError('Binary datatype field is not packed bit');
+    }
+
+    const byteCount = this.length() - 2;
+    const bitCount = byteCount * 8 - this.buffer[1];
+    const bits = new Int8Array(bitCount);
+
+    for (let bitOffset = 0; bitOffset < bits.length; bitOffset++) {
+      const byteOffset = (bitOffset / 8) | 0;
+      const byte = this.buffer[byteOffset + 2];
+      const shift = 7 - (bitOffset % 8);
+      const bit = (byte >> shift) & 1;
+      bits[bitOffset] = bit;
+    }
+
+    return bits;
+  }
+
+  /**
+   * Constructs a Binary representing an Int8 Vector.
+   * @param array - The array to store as a view on the Binary class
+   */
+  public static fromInt8Array(array: Int8Array): Binary {
+    const buffer = ByteUtils.allocate(array.byteLength + 2);
+    buffer[0] = Binary.VECTOR_TYPE.Int8;
+    buffer[1] = 0;
+    const intBytes = new Uint8Array(array.buffer, array.byteOffset, array.byteLength);
+    buffer.set(intBytes, 2);
+    return new this(buffer, this.SUBTYPE_VECTOR);
+  }
+
+  /** Constructs a Binary representing an Float32 Vector. */
+  public static fromFloat32Array(array: Float32Array): Binary {
+    const binaryBytes = ByteUtils.allocate(array.byteLength + 2);
+    binaryBytes[0] = Binary.VECTOR_TYPE.Float32;
+    binaryBytes[1] = 0;
+
+    const floatBytes = new Uint8Array(array.buffer, array.byteOffset, array.byteLength);
+    binaryBytes.set(floatBytes, 2);
+
+    if (NumberUtils.isBigEndian) ByteUtils.swap32(new Uint8Array(binaryBytes.buffer, 2));
+
+    return new this(binaryBytes, this.SUBTYPE_VECTOR);
+  }
+
+  /**
+   * Constructs a Binary representing a packed bit Vector.
+   *
+   * Use `fromBits` to pack an array of 1s and 0s.
+   */
+  public static fromPackedBits(array: Uint8Array, padding = 0): Binary {
+    const buffer = ByteUtils.allocate(array.byteLength + 2);
+    buffer[0] = Binary.VECTOR_TYPE.PackedBit;
+    buffer[1] = padding;
+    buffer.set(array, 2);
+    return new this(buffer, this.SUBTYPE_VECTOR);
+  }
+
+  /**
+   * Constructs a Binary representing an Packed Bit Vector.
+   * @param array - The array of 1s and 0s to pack into the Binary instance
+   */
+  public static fromBits(bits: ArrayLike<number>): Binary {
+    const byteLength = (bits.length + 7) >>> 3; // ceil(bits.length / 8)
+    const bytes = new Uint8Array(byteLength + 2);
+    bytes[0] = Binary.VECTOR_TYPE.PackedBit;
+
+    const remainder = bits.length % 8;
+    bytes[1] = remainder === 0 ? 0 : 8 - remainder;
+
+    for (let bitOffset = 0; bitOffset < bits.length; bitOffset++) {
+      const byteOffset = bitOffset >>> 3; // floor(bitOffset / 8)
+      const bit = bits[bitOffset];
+
+      if (bit !== 0 && bit !== 1) {
+        throw new BSONError(
+          `Invalid bit value at ${bitOffset}: must be 0 or 1, found ${bits[bitOffset]}`
+        );
+      }
+
+      if (bit === 0) continue;
+
+      const shift = 7 - (bitOffset % 8);
+      bytes[byteOffset + 2] |= bit << shift;
+    }
+
+    return new this(bytes, Binary.SUBTYPE_VECTOR);
+  }
+}
+
+export function validateBinaryVector(vector: Binary): void {
+  if (vector.sub_type !== Binary.SUBTYPE_VECTOR) return;
+
+  const size = vector.position;
+
+  // NOTE: Validation is only applied to **KNOWN** vector types
+  // If a new datatype is introduced, a future version of the library will need to add validation
+  const datatype = vector.buffer[0];
+
+  // NOTE: We do not enable noUncheckedIndexedAccess so TS believes this is always number
+  // a Binary vector may be empty, in which case the padding is undefined
+  // this possible value is tolerable for our validation checks
+  const padding: number | undefined = vector.buffer[1];
+
+  if (
+    (datatype === Binary.VECTOR_TYPE.Float32 || datatype === Binary.VECTOR_TYPE.Int8) &&
+    padding !== 0
+  ) {
+    throw new BSONError('Invalid Vector: padding must be zero for int8 and float32 vectors');
+  }
+
+  if (datatype === Binary.VECTOR_TYPE.PackedBit && padding !== 0 && size === 2) {
+    throw new BSONError(
+      'Invalid Vector: padding must be zero for packed bit vectors that are empty'
+    );
+  }
+
+  if (datatype === Binary.VECTOR_TYPE.PackedBit && padding > 7) {
+    throw new BSONError(
+      `Invalid Vector: padding must be a value between 0 and 7. found: ${padding}`
+    );
+  }
+}
+
+/** @public */
+export type UUIDExtended = {
+  $uuid: string;
+};
+
+const UUID_BYTE_LENGTH = 16;
+const UUID_WITHOUT_DASHES = /^[0-9A-F]{32}$/i;
+const UUID_WITH_DASHES = /^[0-9A-F]{8}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{12}$/i;
+
+/**
+ * A class representation of the BSON UUID type.
+ * @public
+ */
+export class UUID extends Binary {
+  /**
+   * Create a UUID type
+   *
+   * When the argument to the constructor is omitted a random v4 UUID will be generated.
+   *
+   * @param input - Can be a 32 or 36 character hex string (dashes excluded/included) or a 16 byte binary Buffer.
+   */
+  constructor(input?: string | Uint8Array | UUID) {
+    let bytes: Uint8Array;
+    if (input == null) {
+      bytes = UUID.generate();
+    } else if (input instanceof UUID) {
+      bytes = ByteUtils.toLocalBufferType(new Uint8Array(input.buffer));
+    } else if (ArrayBuffer.isView(input) && input.byteLength === UUID_BYTE_LENGTH) {
+      bytes = ByteUtils.toLocalBufferType(input);
+    } else if (typeof input === 'string') {
+      bytes = UUID.bytesFromString(input);
+    } else {
+      throw new BSONError(
+        'Argument passed in UUID constructor must be a UUID, a 16 byte Buffer or a 32/36 character hex string (dashes excluded/included, format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx).'
+      );
+    }
+    super(bytes, BSON_BINARY_SUBTYPE_UUID_NEW);
+  }
+
+  /**
+   * The UUID bytes
+   * @readonly
+   */
+  get id(): Uint8Array {
+    return this.buffer;
+  }
+
+  set id(value: Uint8Array) {
+    this.buffer = value;
+  }
+
+  /**
+   * Returns the UUID id as a 32 or 36 character hex string representation, excluding/including dashes (defaults to 36 character dash separated)
+   * @param includeDashes - should the string exclude dash-separators.
+   */
+  toHexString(includeDashes = true): string {
+    if (includeDashes) {
+      return [
+        ByteUtils.toHex(this.buffer.subarray(0, 4)),
+        ByteUtils.toHex(this.buffer.subarray(4, 6)),
+        ByteUtils.toHex(this.buffer.subarray(6, 8)),
+        ByteUtils.toHex(this.buffer.subarray(8, 10)),
+        ByteUtils.toHex(this.buffer.subarray(10, 16))
+      ].join('-');
+    }
+    return ByteUtils.toHex(this.buffer);
+  }
+
+  /**
+   * Converts the id into a 36 character (dashes included) hex string, unless a encoding is specified.
+   */
+  toString(encoding?: 'hex' | 'base64'): string {
+    if (encoding === 'hex') return ByteUtils.toHex(this.id);
+    if (encoding === 'base64') return ByteUtils.toBase64(this.id);
+    return this.toHexString();
+  }
+
+  /**
+   * Converts the id into its JSON string representation.
+   * A 36 character (dashes included) hex string in the format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
+   */
+  toJSON(): string {
+    return this.toHexString();
+  }
+
+  /**
+   * Compares the equality of this UUID with `otherID`.
+   *
+   * @param otherId - UUID instance to compare against.
+   */
+  equals(otherId: string | Uint8Array | UUID): boolean {
+    if (!otherId) {
+      return false;
+    }
+
+    if (otherId instanceof UUID) {
+      return ByteUtils.equals(otherId.id, this.id);
+    }
+
+    try {
+      return ByteUtils.equals(new UUID(otherId).id, this.id);
+    } catch {
+      return false;
+    }
+  }
+
+  /**
+   * Creates a Binary instance from the current UUID.
+   */
+  toBinary(): Binary {
+    return new Binary(this.id, Binary.SUBTYPE_UUID);
+  }
+
+  /**
+   * Generates a populated buffer containing a v4 uuid
+   */
+  static generate(): Uint8Array {
+    const bytes = ByteUtils.randomBytes(UUID_BYTE_LENGTH);
+
+    // Per 4.4, set bits for version and `clock_seq_hi_and_reserved`
+    // Kindly borrowed from https://github.com/uuidjs/uuid/blob/master/src/v4.js
+    bytes[6] = (bytes[6] & 0x0f) | 0x40;
+    bytes[8] = (bytes[8] & 0x3f) | 0x80;
+
+    return bytes;
+  }
+
+  /**
+   * Checks if a value is a valid bson UUID
+   * @param input - UUID, string or Buffer to validate.
+   */
+  static isValid(input: string | Uint8Array | UUID | Binary): boolean {
+    if (!input) {
+      return false;
+    }
+
+    if (typeof input === 'string') {
+      return UUID.isValidUUIDString(input);
+    }
+
+    if (isUint8Array(input)) {
+      return input.byteLength === UUID_BYTE_LENGTH;
+    }
+
+    return (
+      input._bsontype === 'Binary' &&
+      input.sub_type === this.SUBTYPE_UUID &&
+      input.buffer.byteLength === 16
+    );
+  }
+
+  /**
+   * Creates an UUID from a hex string representation of an UUID.
+   * @param hexString - 32 or 36 character hex string (dashes excluded/included).
+   */
+  static override createFromHexString(hexString: string): UUID {
+    const buffer = UUID.bytesFromString(hexString);
+    return new UUID(buffer);
+  }
+
+  /** Creates an UUID from a base64 string representation of an UUID. */
+  static override createFromBase64(base64: string): UUID {
+    return new UUID(ByteUtils.fromBase64(base64));
+  }
+
+  /** @internal */
+  static bytesFromString(representation: string) {
+    if (!UUID.isValidUUIDString(representation)) {
+      throw new BSONError(
+        'UUID string representation must be 32 hex digits or canonical hyphenated representation'
+      );
+    }
+    return ByteUtils.fromHex(representation.replace(/-/g, ''));
+  }
+
+  /**
+   * @internal
+   *
+   * Validates a string to be a hex digit sequence with or without dashes.
+   * The canonical hyphenated representation of a uuid is hex in 8-4-4-4-12 groups.
+   */
+  static isValidUUIDString(representation: string) {
+    return UUID_WITHOUT_DASHES.test(representation) || UUID_WITH_DASHES.test(representation);
+  }
+
+  /**
+   * Converts to a string representation of this Id.
+   *
+   * @returns return the 36 character hex string representation.
+   *
+   */
+  inspect(depth?: number, options?: unknown, inspect?: InspectFn): string {
+    inspect ??= defaultInspect;
+    return `new UUID(${inspect(this.toHexString(), options)})`;
+  }
+}
diff --git a/backend/node_modules/bson/src/bson.ts b/backend/node_modules/bson/src/bson.ts
new file mode 100644
index 0000000..0dc8346
--- /dev/null
+++ b/backend/node_modules/bson/src/bson.ts
@@ -0,0 +1,248 @@
+import { Binary, UUID } from './binary';
+import { Code } from './code';
+import { DBRef } from './db_ref';
+import { Decimal128 } from './decimal128';
+import { Double } from './double';
+import { Int32 } from './int_32';
+import { Long } from './long';
+import { MaxKey } from './max_key';
+import { MinKey } from './min_key';
+import { ObjectId } from './objectid';
+import { internalCalculateObjectSize } from './parser/calculate_size';
+// Parts of the parser
+import { internalDeserialize, type DeserializeOptions } from './parser/deserializer';
+import { serializeInto, type SerializeOptions } from './parser/serializer';
+import { BSONRegExp } from './regexp';
+import { BSONSymbol } from './symbol';
+import { Timestamp } from './timestamp';
+import { ByteUtils } from './utils/byte_utils';
+import { NumberUtils } from './utils/number_utils';
+export type { UUIDExtended, BinaryExtended, BinaryExtendedLegacy, BinarySequence } from './binary';
+export type { CodeExtended } from './code';
+export type { DBRefLike } from './db_ref';
+export type { Decimal128Extended } from './decimal128';
+export type { DoubleExtended } from './double';
+export type { EJSONOptions } from './extended_json';
+export type { Int32Extended } from './int_32';
+export type { LongExtended } from './long';
+export type { MaxKeyExtended } from './max_key';
+export type { MinKeyExtended } from './min_key';
+export type { ObjectIdExtended, ObjectIdLike } from './objectid';
+export type { BSONRegExpExtended, BSONRegExpExtendedLegacy } from './regexp';
+export type { BSONSymbolExtended } from './symbol';
+export type { LongWithoutOverrides, TimestampExtended, TimestampOverrides } from './timestamp';
+export type { LongWithoutOverridesClass } from './timestamp';
+export type { SerializeOptions, DeserializeOptions };
+
+export {
+  Code,
+  BSONSymbol,
+  DBRef,
+  Binary,
+  ObjectId,
+  UUID,
+  Long,
+  Timestamp,
+  Double,
+  Int32,
+  MinKey,
+  MaxKey,
+  BSONRegExp,
+  Decimal128
+};
+export { BSONValue } from './bson_value';
+export { BSONError, BSONVersionError, BSONRuntimeError, BSONOffsetError } from './error';
+export { BSONType } from './constants';
+export { EJSON } from './extended_json';
+export { onDemand, type OnDemand } from './parser/on_demand/index';
+
+/** @public */
+export interface Document {
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  [key: string]: any;
+}
+
+/** @internal */
+// Default Max Size
+const MAXSIZE = 1024 * 1024 * 17;
+
+// Current Internal Temporary Serialization Buffer
+let buffer = ByteUtils.allocate(MAXSIZE);
+
+/**
+ * Sets the size of the internal serialization buffer.
+ *
+ * @param size - The desired size for the internal serialization buffer in bytes
+ * @public
+ */
+export function setInternalBufferSize(size: number): void {
+  // Resize the internal serialization buffer if needed
+  if (buffer.length < size) {
+    buffer = ByteUtils.allocate(size);
+  }
+}
+
+/**
+ * Serialize a Javascript object.
+ *
+ * @param object - the Javascript object to serialize.
+ * @returns Buffer object containing the serialized object.
+ * @public
+ */
+export function serialize(object: Document, options: SerializeOptions = {}): Uint8Array {
+  // Unpack the options
+  const checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false;
+  const serializeFunctions =
+    typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false;
+  const ignoreUndefined =
+    typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true;
+  const minInternalBufferSize =
+    typeof options.minInternalBufferSize === 'number' ? options.minInternalBufferSize : MAXSIZE;
+
+  // Resize the internal serialization buffer if needed
+  if (buffer.length < minInternalBufferSize) {
+    buffer = ByteUtils.allocate(minInternalBufferSize);
+  }
+
+  // Attempt to serialize
+  const serializationIndex = serializeInto(
+    buffer,
+    object,
+    checkKeys,
+    0,
+    0,
+    serializeFunctions,
+    ignoreUndefined,
+    null
+  );
+
+  // Create the final buffer
+  const finishedBuffer = ByteUtils.allocateUnsafe(serializationIndex);
+
+  // Copy into the finished buffer
+  finishedBuffer.set(buffer.subarray(0, serializationIndex), 0);
+
+  // Return the buffer
+  return finishedBuffer;
+}
+
+/**
+ * Serialize a Javascript object using a predefined Buffer and index into the buffer,
+ * useful when pre-allocating the space for serialization.
+ *
+ * @param object - the Javascript object to serialize.
+ * @param finalBuffer - the Buffer you pre-allocated to store the serialized BSON object.
+ * @returns the index pointing to the last written byte in the buffer.
+ * @public
+ */
+export function serializeWithBufferAndIndex(
+  object: Document,
+  finalBuffer: Uint8Array,
+  options: SerializeOptions = {}
+): number {
+  // Unpack the options
+  const checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false;
+  const serializeFunctions =
+    typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false;
+  const ignoreUndefined =
+    typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true;
+  const startIndex = typeof options.index === 'number' ? options.index : 0;
+
+  // Attempt to serialize
+  const serializationIndex = serializeInto(
+    buffer,
+    object,
+    checkKeys,
+    0,
+    0,
+    serializeFunctions,
+    ignoreUndefined,
+    null
+  );
+
+  finalBuffer.set(buffer.subarray(0, serializationIndex), startIndex);
+
+  // Return the index
+  return startIndex + serializationIndex - 1;
+}
+
+/**
+ * Deserialize data as BSON.
+ *
+ * @param buffer - the buffer containing the serialized set of BSON documents.
+ * @returns returns the deserialized Javascript Object.
+ * @public
+ */
+export function deserialize(buffer: Uint8Array, options: DeserializeOptions = {}): Document {
+  return internalDeserialize(ByteUtils.toLocalBufferType(buffer), options);
+}
+
+/** @public */
+export type CalculateObjectSizeOptions = Pick<
+  SerializeOptions,
+  'serializeFunctions' | 'ignoreUndefined'
+>;
+
+/**
+ * Calculate the bson size for a passed in Javascript object.
+ *
+ * @param object - the Javascript object to calculate the BSON byte size for
+ * @returns size of BSON object in bytes
+ * @public
+ */
+export function calculateObjectSize(
+  object: Document,
+  options: CalculateObjectSizeOptions = {}
+): number {
+  options = options || {};
+
+  const serializeFunctions =
+    typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false;
+  const ignoreUndefined =
+    typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true;
+
+  return internalCalculateObjectSize(object, serializeFunctions, ignoreUndefined);
+}
+
+/**
+ * Deserialize stream data as BSON documents.
+ *
+ * @param data - the buffer containing the serialized set of BSON documents.
+ * @param startIndex - the start index in the data Buffer where the deserialization is to start.
+ * @param numberOfDocuments - number of documents to deserialize.
+ * @param documents - an array where to store the deserialized documents.
+ * @param docStartIndex - the index in the documents array from where to start inserting documents.
+ * @param options - additional options used for the deserialization.
+ * @returns next index in the buffer after deserialization **x** numbers of documents.
+ * @public
+ */
+export function deserializeStream(
+  data: Uint8Array | ArrayBuffer,
+  startIndex: number,
+  numberOfDocuments: number,
+  documents: Document[],
+  docStartIndex: number,
+  options: DeserializeOptions
+): number {
+  const internalOptions = Object.assign(
+    { allowObjectSmallerThanBufferSize: true, index: 0 },
+    options
+  );
+  const bufferData = ByteUtils.toLocalBufferType(data);
+
+  let index = startIndex;
+  // Loop over all documents
+  for (let i = 0; i < numberOfDocuments; i++) {
+    // Find size of the document
+    const size = NumberUtils.getInt32LE(bufferData, index);
+    // Update options with index
+    internalOptions.index = index;
+    // Parse the document at this point
+    documents[docStartIndex + i] = internalDeserialize(bufferData, internalOptions);
+    // Adjust index by the document size
+    index = index + size;
+  }
+
+  // Return object containing end index of parsing and list of documents
+  return index;
+}
diff --git a/backend/node_modules/bson/src/bson_value.ts b/backend/node_modules/bson/src/bson_value.ts
new file mode 100644
index 0000000..10d5014
--- /dev/null
+++ b/backend/node_modules/bson/src/bson_value.ts
@@ -0,0 +1,32 @@
+import { BSON_MAJOR_VERSION } from './constants';
+import { type InspectFn } from './parser/utils';
+import { BSON_VERSION_SYMBOL } from './constants';
+
+/** @public */
+export abstract class BSONValue {
+  /** @public */
+  public abstract get _bsontype(): string;
+
+  /** @internal */
+  get [BSON_VERSION_SYMBOL](): typeof BSON_MAJOR_VERSION {
+    return BSON_MAJOR_VERSION;
+  }
+
+  [Symbol.for('nodejs.util.inspect.custom')](
+    depth?: number,
+    options?: unknown,
+    inspect?: InspectFn
+  ): string {
+    return this.inspect(depth, options, inspect);
+  }
+
+  /**
+   * @public
+   * Prints a human-readable string of BSON value information
+   * If invoked manually without node.js.inspect function, this will default to a modified JSON.stringify
+   */
+  public abstract inspect(depth?: number, options?: unknown, inspect?: InspectFn): string;
+
+  /** @internal */
+  abstract toExtendedJSON(): unknown;
+}
diff --git a/backend/node_modules/bson/src/code.ts b/backend/node_modules/bson/src/code.ts
new file mode 100644
index 0000000..98b1ede
--- /dev/null
+++ b/backend/node_modules/bson/src/code.ts
@@ -0,0 +1,69 @@
+import type { Document } from './bson';
+import { BSONValue } from './bson_value';
+import { type InspectFn, defaultInspect } from './parser/utils';
+
+/** @public */
+export interface CodeExtended {
+  $code: string;
+  $scope?: Document;
+}
+
+/**
+ * A class representation of the BSON Code type.
+ * @public
+ * @category BSONType
+ */
+export class Code extends BSONValue {
+  get _bsontype(): 'Code' {
+    return 'Code';
+  }
+
+  code: string;
+
+  // a code instance having a null scope is what determines whether
+  // it is BSONType 0x0D (just code) / 0x0F (code with scope)
+  scope: Document | null;
+
+  /**
+   * @param code - a string or function.
+   * @param scope - an optional scope for the function.
+   */
+  constructor(code: string | Function, scope?: Document | null) {
+    super();
+    this.code = code.toString();
+    this.scope = scope ?? null;
+  }
+
+  toJSON(): { code: string; scope?: Document } {
+    if (this.scope != null) {
+      return { code: this.code, scope: this.scope };
+    }
+
+    return { code: this.code };
+  }
+
+  /** @internal */
+  toExtendedJSON(): CodeExtended {
+    if (this.scope) {
+      return { $code: this.code, $scope: this.scope };
+    }
+
+    return { $code: this.code };
+  }
+
+  /** @internal */
+  static fromExtendedJSON(doc: CodeExtended): Code {
+    return new Code(doc.$code, doc.$scope);
+  }
+
+  inspect(depth?: number, options?: unknown, inspect?: InspectFn): string {
+    inspect ??= defaultInspect;
+    let parametersString = inspect(this.code, options);
+    const multiLineFn = parametersString.includes('\n');
+    if (this.scope != null) {
+      parametersString += `,${multiLineFn ? '\n' : ' '}${inspect(this.scope, options)}`;
+    }
+    const endingNewline = multiLineFn && this.scope === null;
+    return `new Code(${multiLineFn ? '\n' : ''}${parametersString}${endingNewline ? '\n' : ''})`;
+  }
+}
diff --git a/backend/node_modules/bson/src/constants.ts b/backend/node_modules/bson/src/constants.ts
new file mode 100644
index 0000000..c399fda
--- /dev/null
+++ b/backend/node_modules/bson/src/constants.ts
@@ -0,0 +1,147 @@
+/** @internal */
+export const BSON_MAJOR_VERSION = 6;
+
+/** @internal */
+export const BSON_VERSION_SYMBOL = Symbol.for('@@mdb.bson.version');
+
+/** @internal */
+export const BSON_INT32_MAX = 0x7fffffff;
+/** @internal */
+export const BSON_INT32_MIN = -0x80000000;
+/** @internal */
+export const BSON_INT64_MAX = Math.pow(2, 63) - 1;
+/** @internal */
+export const BSON_INT64_MIN = -Math.pow(2, 63);
+
+/**
+ * Any integer up to 2^53 can be precisely represented by a double.
+ * @internal
+ */
+export const JS_INT_MAX = Math.pow(2, 53);
+
+/**
+ * Any integer down to -2^53 can be precisely represented by a double.
+ * @internal
+ */
+export const JS_INT_MIN = -Math.pow(2, 53);
+
+/** Number BSON Type @internal */
+export const BSON_DATA_NUMBER = 1;
+
+/** String BSON Type @internal */
+export const BSON_DATA_STRING = 2;
+
+/** Object BSON Type @internal */
+export const BSON_DATA_OBJECT = 3;
+
+/** Array BSON Type @internal */
+export const BSON_DATA_ARRAY = 4;
+
+/** Binary BSON Type @internal */
+export const BSON_DATA_BINARY = 5;
+
+/** Binary BSON Type @internal */
+export const BSON_DATA_UNDEFINED = 6;
+
+/** ObjectId BSON Type @internal */
+export const BSON_DATA_OID = 7;
+
+/** Boolean BSON Type @internal */
+export const BSON_DATA_BOOLEAN = 8;
+
+/** Date BSON Type @internal */
+export const BSON_DATA_DATE = 9;
+
+/** null BSON Type @internal */
+export const BSON_DATA_NULL = 10;
+
+/** RegExp BSON Type @internal */
+export const BSON_DATA_REGEXP = 11;
+
+/** Code BSON Type @internal */
+export const BSON_DATA_DBPOINTER = 12;
+
+/** Code BSON Type @internal */
+export const BSON_DATA_CODE = 13;
+
+/** Symbol BSON Type @internal */
+export const BSON_DATA_SYMBOL = 14;
+
+/** Code with Scope BSON Type @internal */
+export const BSON_DATA_CODE_W_SCOPE = 15;
+
+/** 32 bit Integer BSON Type @internal */
+export const BSON_DATA_INT = 16;
+
+/** Timestamp BSON Type @internal */
+export const BSON_DATA_TIMESTAMP = 17;
+
+/** Long BSON Type @internal */
+export const BSON_DATA_LONG = 18;
+
+/** Decimal128 BSON Type @internal */
+export const BSON_DATA_DECIMAL128 = 19;
+
+/** MinKey BSON Type @internal */
+export const BSON_DATA_MIN_KEY = 0xff;
+
+/** MaxKey BSON Type @internal */
+export const BSON_DATA_MAX_KEY = 0x7f;
+
+/** Binary Default Type @internal */
+export const BSON_BINARY_SUBTYPE_DEFAULT = 0;
+
+/** Binary Function Type @internal */
+export const BSON_BINARY_SUBTYPE_FUNCTION = 1;
+
+/** Binary Byte Array Type @internal */
+export const BSON_BINARY_SUBTYPE_BYTE_ARRAY = 2;
+
+/** Binary Deprecated UUID Type @deprecated Please use BSON_BINARY_SUBTYPE_UUID_NEW @internal */
+export const BSON_BINARY_SUBTYPE_UUID = 3;
+
+/** Binary UUID Type @internal */
+export const BSON_BINARY_SUBTYPE_UUID_NEW = 4;
+
+/** Binary MD5 Type @internal */
+export const BSON_BINARY_SUBTYPE_MD5 = 5;
+
+/** Encrypted BSON type @internal */
+export const BSON_BINARY_SUBTYPE_ENCRYPTED = 6;
+
+/** Column BSON type @internal */
+export const BSON_BINARY_SUBTYPE_COLUMN = 7;
+
+/** Sensitive BSON type @internal */
+export const BSON_BINARY_SUBTYPE_SENSITIVE = 8;
+
+/** Binary User Defined Type @internal */
+export const BSON_BINARY_SUBTYPE_USER_DEFINED = 128;
+
+/** @public */
+export const BSONType = Object.freeze({
+  double: 1,
+  string: 2,
+  object: 3,
+  array: 4,
+  binData: 5,
+  undefined: 6,
+  objectId: 7,
+  bool: 8,
+  date: 9,
+  null: 10,
+  regex: 11,
+  dbPointer: 12,
+  javascript: 13,
+  symbol: 14,
+  javascriptWithScope: 15,
+  int: 16,
+  timestamp: 17,
+  long: 18,
+  decimal: 19,
+  minKey: -1,
+  maxKey: 127
+} as const);
+
+/** @public */
+export type BSONType = (typeof BSONType)[keyof typeof BSONType];
diff --git a/backend/node_modules/bson/src/db_ref.ts b/backend/node_modules/bson/src/db_ref.ts
new file mode 100644
index 0000000..fbb751f
--- /dev/null
+++ b/backend/node_modules/bson/src/db_ref.ts
@@ -0,0 +1,128 @@
+import type { Document } from './bson';
+import { BSONValue } from './bson_value';
+import type { EJSONOptions } from './extended_json';
+import type { ObjectId } from './objectid';
+import { type InspectFn, defaultInspect } from './parser/utils';
+
+/** @public */
+export interface DBRefLike {
+  $ref: string;
+  $id: ObjectId;
+  $db?: string;
+}
+
+/** @internal */
+export function isDBRefLike(value: unknown): value is DBRefLike {
+  return (
+    value != null &&
+    typeof value === 'object' &&
+    '$id' in value &&
+    value.$id != null &&
+    '$ref' in value &&
+    typeof value.$ref === 'string' &&
+    // If '$db' is defined it MUST be a string, otherwise it should be absent
+    (!('$db' in value) || ('$db' in value && typeof value.$db === 'string'))
+  );
+}
+
+/**
+ * A class representation of the BSON DBRef type.
+ * @public
+ * @category BSONType
+ */
+export class DBRef extends BSONValue {
+  get _bsontype(): 'DBRef' {
+    return 'DBRef';
+  }
+
+  collection!: string;
+  oid!: ObjectId;
+  db?: string;
+  fields!: Document;
+
+  /**
+   * @param collection - the collection name.
+   * @param oid - the reference ObjectId.
+   * @param db - optional db name, if omitted the reference is local to the current db.
+   */
+  constructor(collection: string, oid: ObjectId, db?: string, fields?: Document) {
+    super();
+    // check if namespace has been provided
+    const parts = collection.split('.');
+    if (parts.length === 2) {
+      db = parts.shift();
+      collection = parts.shift()!;
+    }
+
+    this.collection = collection;
+    this.oid = oid;
+    this.db = db;
+    this.fields = fields || {};
+  }
+
+  // Property provided for compatibility with the 1.x parser
+  // the 1.x parser used a "namespace" property, while 4.x uses "collection"
+
+  /** @internal */
+  get namespace(): string {
+    return this.collection;
+  }
+
+  set namespace(value: string) {
+    this.collection = value;
+  }
+
+  toJSON(): DBRefLike & Document {
+    const o = Object.assign(
+      {
+        $ref: this.collection,
+        $id: this.oid
+      },
+      this.fields
+    );
+
+    if (this.db != null) o.$db = this.db;
+    return o;
+  }
+
+  /** @internal */
+  toExtendedJSON(options?: EJSONOptions): DBRefLike {
+    options = options || {};
+    let o: DBRefLike = {
+      $ref: this.collection,
+      $id: this.oid
+    };
+
+    if (options.legacy) {
+      return o;
+    }
+
+    if (this.db) o.$db = this.db;
+    o = Object.assign(o, this.fields);
+    return o;
+  }
+
+  /** @internal */
+  static fromExtendedJSON(doc: DBRefLike): DBRef {
+    const copy = Object.assign({}, doc) as Partial<DBRefLike>;
+    delete copy.$ref;
+    delete copy.$id;
+    delete copy.$db;
+    return new DBRef(doc.$ref, doc.$id, doc.$db, copy);
+  }
+
+  inspect(depth?: number, options?: unknown, inspect?: InspectFn): string {
+    inspect ??= defaultInspect;
+
+    const args = [
+      inspect(this.namespace, options),
+      inspect(this.oid, options),
+      ...(this.db ? [inspect(this.db, options)] : []),
+      ...(Object.keys(this.fields).length > 0 ? [inspect(this.fields, options)] : [])
+    ];
+
+    args[1] = inspect === defaultInspect ? `new ObjectId(${args[1]})` : args[1];
+
+    return `new DBRef(${args.join(', ')})`;
+  }
+}
diff --git a/backend/node_modules/bson/src/decimal128.ts b/backend/node_modules/bson/src/decimal128.ts
new file mode 100644
index 0000000..8f491b3
--- /dev/null
+++ b/backend/node_modules/bson/src/decimal128.ts
@@ -0,0 +1,855 @@
+import { BSONValue } from './bson_value';
+import { BSONError } from './error';
+import { Long } from './long';
+import { type InspectFn, defaultInspect, isUint8Array } from './parser/utils';
+import { ByteUtils } from './utils/byte_utils';
+
+const PARSE_STRING_REGEXP = /^(\+|-)?(\d+|(\d*\.\d*))?(E|e)?([-+])?(\d+)?$/;
+const PARSE_INF_REGEXP = /^(\+|-)?(Infinity|inf)$/i;
+const PARSE_NAN_REGEXP = /^(\+|-)?NaN$/i;
+
+const EXPONENT_MAX = 6111;
+const EXPONENT_MIN = -6176;
+const EXPONENT_BIAS = 6176;
+const MAX_DIGITS = 34;
+
+// Nan value bits as 32 bit values (due to lack of longs)
+const NAN_BUFFER = ByteUtils.fromNumberArray(
+  [
+    0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+  ].reverse()
+);
+// Infinity value bits 32 bit values (due to lack of longs)
+const INF_NEGATIVE_BUFFER = ByteUtils.fromNumberArray(
+  [
+    0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+  ].reverse()
+);
+const INF_POSITIVE_BUFFER = ByteUtils.fromNumberArray(
+  [
+    0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+  ].reverse()
+);
+
+const EXPONENT_REGEX = /^([-+])?(\d+)?$/;
+
+// Extract least significant 5 bits
+const COMBINATION_MASK = 0x1f;
+// Extract least significant 14 bits
+const EXPONENT_MASK = 0x3fff;
+// Value of combination field for Inf
+const COMBINATION_INFINITY = 30;
+// Value of combination field for NaN
+const COMBINATION_NAN = 31;
+
+// Detect if the value is a digit
+function isDigit(value: string): boolean {
+  return !isNaN(parseInt(value, 10));
+}
+
+// Divide two uint128 values
+function divideu128(value: { parts: [number, number, number, number] }) {
+  const DIVISOR = Long.fromNumber(1000 * 1000 * 1000);
+  let _rem = Long.fromNumber(0);
+
+  if (!value.parts[0] && !value.parts[1] && !value.parts[2] && !value.parts[3]) {
+    return { quotient: value, rem: _rem };
+  }
+
+  for (let i = 0; i <= 3; i++) {
+    // Adjust remainder to match value of next dividend
+    _rem = _rem.shiftLeft(32);
+    // Add the divided to _rem
+    _rem = _rem.add(new Long(value.parts[i], 0));
+    value.parts[i] = _rem.div(DIVISOR).low;
+    _rem = _rem.modulo(DIVISOR);
+  }
+
+  return { quotient: value, rem: _rem };
+}
+
+// Multiply two Long values and return the 128 bit value
+function multiply64x2(left: Long, right: Long): { high: Long; low: Long } {
+  if (!left && !right) {
+    return { high: Long.fromNumber(0), low: Long.fromNumber(0) };
+  }
+
+  const leftHigh = left.shiftRightUnsigned(32);
+  const leftLow = new Long(left.getLowBits(), 0);
+  const rightHigh = right.shiftRightUnsigned(32);
+  const rightLow = new Long(right.getLowBits(), 0);
+
+  let productHigh = leftHigh.multiply(rightHigh);
+  let productMid = leftHigh.multiply(rightLow);
+  const productMid2 = leftLow.multiply(rightHigh);
+  let productLow = leftLow.multiply(rightLow);
+
+  productHigh = productHigh.add(productMid.shiftRightUnsigned(32));
+  productMid = new Long(productMid.getLowBits(), 0)
+    .add(productMid2)
+    .add(productLow.shiftRightUnsigned(32));
+
+  productHigh = productHigh.add(productMid.shiftRightUnsigned(32));
+  productLow = productMid.shiftLeft(32).add(new Long(productLow.getLowBits(), 0));
+
+  // Return the 128 bit result
+  return { high: productHigh, low: productLow };
+}
+
+function lessThan(left: Long, right: Long): boolean {
+  // Make values unsigned
+  const uhleft = left.high >>> 0;
+  const uhright = right.high >>> 0;
+
+  // Compare high bits first
+  if (uhleft < uhright) {
+    return true;
+  } else if (uhleft === uhright) {
+    const ulleft = left.low >>> 0;
+    const ulright = right.low >>> 0;
+    if (ulleft < ulright) return true;
+  }
+
+  return false;
+}
+
+function invalidErr(string: string, message: string) {
+  throw new BSONError(`"${string}" is not a valid Decimal128 string - ${message}`);
+}
+
+/** @public */
+export interface Decimal128Extended {
+  $numberDecimal: string;
+}
+
+/**
+ * A class representation of the BSON Decimal128 type.
+ * @public
+ * @category BSONType
+ */
+export class Decimal128 extends BSONValue {
+  get _bsontype(): 'Decimal128' {
+    return 'Decimal128';
+  }
+
+  readonly bytes!: Uint8Array;
+
+  /**
+   * @param bytes - a buffer containing the raw Decimal128 bytes in little endian order,
+   *                or a string representation as returned by .toString()
+   */
+  constructor(bytes: Uint8Array | string) {
+    super();
+    if (typeof bytes === 'string') {
+      this.bytes = Decimal128.fromString(bytes).bytes;
+    } else if (bytes instanceof Uint8Array || isUint8Array(bytes)) {
+      if (bytes.byteLength !== 16) {
+        throw new BSONError('Decimal128 must take a Buffer of 16 bytes');
+      }
+      this.bytes = bytes;
+    } else {
+      throw new BSONError('Decimal128 must take a Buffer or string');
+    }
+  }
+
+  /**
+   * Create a Decimal128 instance from a string representation
+   *
+   * @param representation - a numeric string representation.
+   */
+  static fromString(representation: string): Decimal128 {
+    return Decimal128._fromString(representation, { allowRounding: false });
+  }
+
+  /**
+   * Create a Decimal128 instance from a string representation, allowing for rounding to 34
+   * significant digits
+   *
+   * @example Example of a number that will be rounded
+   * ```ts
+   * > let d = Decimal128.fromString('37.499999999999999196428571428571375')
+   * Uncaught:
+   * BSONError: "37.499999999999999196428571428571375" is not a valid Decimal128 string - inexact rounding
+   * at invalidErr (/home/wajames/js-bson/lib/bson.cjs:1402:11)
+   * at Decimal128.fromStringInternal (/home/wajames/js-bson/lib/bson.cjs:1633:25)
+   * at Decimal128.fromString (/home/wajames/js-bson/lib/bson.cjs:1424:27)
+   *
+   * > d = Decimal128.fromStringWithRounding('37.499999999999999196428571428571375')
+   * new Decimal128("37.49999999999999919642857142857138")
+   * ```
+   * @param representation - a numeric string representation.
+   */
+  static fromStringWithRounding(representation: string): Decimal128 {
+    return Decimal128._fromString(representation, { allowRounding: true });
+  }
+
+  private static _fromString(representation: string, options: { allowRounding: boolean }) {
+    // Parse state tracking
+    let isNegative = false;
+    let sawSign = false;
+    let sawRadix = false;
+    let foundNonZero = false;
+
+    // Total number of significant digits (no leading or trailing zero)
+    let significantDigits = 0;
+    // Total number of significand digits read
+    let nDigitsRead = 0;
+    // Total number of digits (no leading zeros)
+    let nDigits = 0;
+    // The number of the digits after radix
+    let radixPosition = 0;
+    // The index of the first non-zero in *str*
+    let firstNonZero = 0;
+
+    // Digits Array
+    const digits = [0];
+    // The number of digits in digits
+    let nDigitsStored = 0;
+    // Insertion pointer for digits
+    let digitsInsert = 0;
+    // The index of the last digit
+    let lastDigit = 0;
+
+    // Exponent
+    let exponent = 0;
+    // The high 17 digits of the significand
+    let significandHigh = new Long(0, 0);
+    // The low 17 digits of the significand
+    let significandLow = new Long(0, 0);
+    // The biased exponent
+    let biasedExponent = 0;
+
+    // Read index
+    let index = 0;
+
+    // Naively prevent against REDOS attacks.
+    // TODO: implementing a custom parsing for this, or refactoring the regex would yield
+    //       further gains.
+    if (representation.length >= 7000) {
+      throw new BSONError('' + representation + ' not a valid Decimal128 string');
+    }
+
+    // Results
+    const stringMatch = representation.match(PARSE_STRING_REGEXP);
+    const infMatch = representation.match(PARSE_INF_REGEXP);
+    const nanMatch = representation.match(PARSE_NAN_REGEXP);
+
+    // Validate the string
+    if ((!stringMatch && !infMatch && !nanMatch) || representation.length === 0) {
+      throw new BSONError('' + representation + ' not a valid Decimal128 string');
+    }
+
+    if (stringMatch) {
+      // full_match = stringMatch[0]
+      // sign = stringMatch[1]
+
+      const unsignedNumber = stringMatch[2];
+      // stringMatch[3] is undefined if a whole number (ex "1", 12")
+      // but defined if a number w/ decimal in it (ex "1.0, 12.2")
+
+      const e = stringMatch[4];
+      const expSign = stringMatch[5];
+      const expNumber = stringMatch[6];
+
+      // they provided e, but didn't give an exponent number. for ex "1e"
+      if (e && expNumber === undefined) invalidErr(representation, 'missing exponent power');
+
+      // they provided e, but didn't give a number before it. for ex "e1"
+      if (e && unsignedNumber === undefined) invalidErr(representation, 'missing exponent base');
+
+      if (e === undefined && (expSign || expNumber)) {
+        invalidErr(representation, 'missing e before exponent');
+      }
+    }
+
+    // Get the negative or positive sign
+    if (representation[index] === '+' || representation[index] === '-') {
+      sawSign = true;
+      isNegative = representation[index++] === '-';
+    }
+
+    // Check if user passed Infinity or NaN
+    if (!isDigit(representation[index]) && representation[index] !== '.') {
+      if (representation[index] === 'i' || representation[index] === 'I') {
+        return new Decimal128(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER);
+      } else if (representation[index] === 'N') {
+        return new Decimal128(NAN_BUFFER);
+      }
+    }
+
+    // Read all the digits
+    while (isDigit(representation[index]) || representation[index] === '.') {
+      if (representation[index] === '.') {
+        if (sawRadix) invalidErr(representation, 'contains multiple periods');
+
+        sawRadix = true;
+        index = index + 1;
+        continue;
+      }
+
+      if (nDigitsStored < MAX_DIGITS) {
+        if (representation[index] !== '0' || foundNonZero) {
+          if (!foundNonZero) {
+            firstNonZero = nDigitsRead;
+          }
+
+          foundNonZero = true;
+
+          // Only store 34 digits
+          digits[digitsInsert++] = parseInt(representation[index], 10);
+          nDigitsStored = nDigitsStored + 1;
+        }
+      }
+
+      if (foundNonZero) nDigits = nDigits + 1;
+      if (sawRadix) radixPosition = radixPosition + 1;
+
+      nDigitsRead = nDigitsRead + 1;
+      index = index + 1;
+    }
+
+    if (sawRadix && !nDigitsRead)
+      throw new BSONError('' + representation + ' not a valid Decimal128 string');
+
+    // Read exponent if exists
+    if (representation[index] === 'e' || representation[index] === 'E') {
+      // Read exponent digits
+      const match = representation.substr(++index).match(EXPONENT_REGEX);
+
+      // No digits read
+      if (!match || !match[2]) return new Decimal128(NAN_BUFFER);
+
+      // Get exponent
+      exponent = parseInt(match[0], 10);
+
+      // Adjust the index
+      index = index + match[0].length;
+    }
+
+    // Return not a number
+    if (representation[index]) return new Decimal128(NAN_BUFFER);
+
+    // Done reading input
+    // Find first non-zero digit in digits
+    if (!nDigitsStored) {
+      digits[0] = 0;
+      nDigits = 1;
+      nDigitsStored = 1;
+      significantDigits = 0;
+    } else {
+      lastDigit = nDigitsStored - 1;
+      significantDigits = nDigits;
+      if (significantDigits !== 1) {
+        while (
+          representation[
+            firstNonZero + significantDigits - 1 + Number(sawSign) + Number(sawRadix)
+          ] === '0'
+        ) {
+          significantDigits = significantDigits - 1;
+        }
+      }
+    }
+
+    // Normalization of exponent
+    // Correct exponent based on radix position, and shift significand as needed
+    // to represent user input
+
+    // Overflow prevention
+    if (exponent <= radixPosition && radixPosition > exponent + (1 << 14)) {
+      exponent = EXPONENT_MIN;
+    } else {
+      exponent = exponent - radixPosition;
+    }
+
+    // Attempt to normalize the exponent
+    while (exponent > EXPONENT_MAX) {
+      // Shift exponent to significand and decrease
+      lastDigit = lastDigit + 1;
+      if (lastDigit >= MAX_DIGITS) {
+        // Check if we have a zero then just hard clamp, otherwise fail
+        if (significantDigits === 0) {
+          exponent = EXPONENT_MAX;
+          break;
+        }
+
+        invalidErr(representation, 'overflow');
+      }
+      exponent = exponent - 1;
+    }
+
+    if (options.allowRounding) {
+      while (exponent < EXPONENT_MIN || nDigitsStored < nDigits) {
+        // Shift last digit. can only do this if < significant digits than # stored.
+        if (lastDigit === 0 && significantDigits < nDigitsStored) {
+          exponent = EXPONENT_MIN;
+          significantDigits = 0;
+          break;
+        }
+
+        if (nDigitsStored < nDigits) {
+          // adjust to match digits not stored
+          nDigits = nDigits - 1;
+        } else {
+          // adjust to round
+          lastDigit = lastDigit - 1;
+        }
+
+        if (exponent < EXPONENT_MAX) {
+          exponent = exponent + 1;
+        } else {
+          // Check if we have a zero then just hard clamp, otherwise fail
+          const digitsString = digits.join('');
+          if (digitsString.match(/^0+$/)) {
+            exponent = EXPONENT_MAX;
+            break;
+          }
+          invalidErr(representation, 'overflow');
+        }
+      }
+
+      // Round
+      // We've normalized the exponent, but might still need to round.
+      if (lastDigit + 1 < significantDigits) {
+        let endOfString = nDigitsRead;
+
+        // If we have seen a radix point, 'string' is 1 longer than we have
+        // documented with ndigits_read, so inc the position of the first nonzero
+        // digit and the position that digits are read to.
+        if (sawRadix) {
+          firstNonZero = firstNonZero + 1;
+          endOfString = endOfString + 1;
+        }
+        // if negative, we need to increment again to account for - sign at start.
+        if (sawSign) {
+          firstNonZero = firstNonZero + 1;
+          endOfString = endOfString + 1;
+        }
+
+        const roundDigit = parseInt(representation[firstNonZero + lastDigit + 1], 10);
+        let roundBit = 0;
+
+        if (roundDigit >= 5) {
+          roundBit = 1;
+          if (roundDigit === 5) {
+            roundBit = digits[lastDigit] % 2 === 1 ? 1 : 0;
+            for (let i = firstNonZero + lastDigit + 2; i < endOfString; i++) {
+              if (parseInt(representation[i], 10)) {
+                roundBit = 1;
+                break;
+              }
+            }
+          }
+        }
+
+        if (roundBit) {
+          let dIdx = lastDigit;
+
+          for (; dIdx >= 0; dIdx--) {
+            if (++digits[dIdx] > 9) {
+              digits[dIdx] = 0;
+
+              // overflowed most significant digit
+              if (dIdx === 0) {
+                if (exponent < EXPONENT_MAX) {
+                  exponent = exponent + 1;
+                  digits[dIdx] = 1;
+                } else {
+                  return new Decimal128(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER);
+                }
+              }
+            } else {
+              break;
+            }
+          }
+        }
+      }
+    } else {
+      while (exponent < EXPONENT_MIN || nDigitsStored < nDigits) {
+        // Shift last digit. can only do this if < significant digits than # stored.
+        if (lastDigit === 0) {
+          if (significantDigits === 0) {
+            exponent = EXPONENT_MIN;
+            break;
+          }
+
+          invalidErr(representation, 'exponent underflow');
+        }
+
+        if (nDigitsStored < nDigits) {
+          if (
+            representation[nDigits - 1 + Number(sawSign) + Number(sawRadix)] !== '0' &&
+            significantDigits !== 0
+          ) {
+            invalidErr(representation, 'inexact rounding');
+          }
+          // adjust to match digits not stored
+          nDigits = nDigits - 1;
+        } else {
+          if (digits[lastDigit] !== 0) {
+            invalidErr(representation, 'inexact rounding');
+          }
+          // adjust to round
+          lastDigit = lastDigit - 1;
+        }
+
+        if (exponent < EXPONENT_MAX) {
+          exponent = exponent + 1;
+        } else {
+          invalidErr(representation, 'overflow');
+        }
+      }
+
+      // Round
+      // We've normalized the exponent, but might still need to round.
+      if (lastDigit + 1 < significantDigits) {
+        // If we have seen a radix point, 'string' is 1 longer than we have
+        // documented with ndigits_read, so inc the position of the first nonzero
+        // digit and the position that digits are read to.
+        if (sawRadix) {
+          firstNonZero = firstNonZero + 1;
+        }
+        // if saw sign, we need to increment again to account for - or + sign at start.
+        if (sawSign) {
+          firstNonZero = firstNonZero + 1;
+        }
+
+        const roundDigit = parseInt(representation[firstNonZero + lastDigit + 1], 10);
+
+        if (roundDigit !== 0) {
+          invalidErr(representation, 'inexact rounding');
+        }
+      }
+    }
+
+    // Encode significand
+    // The high 17 digits of the significand
+    significandHigh = Long.fromNumber(0);
+    // The low 17 digits of the significand
+    significandLow = Long.fromNumber(0);
+
+    // read a zero
+    if (significantDigits === 0) {
+      significandHigh = Long.fromNumber(0);
+      significandLow = Long.fromNumber(0);
+    } else if (lastDigit < 17) {
+      let dIdx = 0;
+      significandLow = Long.fromNumber(digits[dIdx++]);
+      significandHigh = new Long(0, 0);
+
+      for (; dIdx <= lastDigit; dIdx++) {
+        significandLow = significandLow.multiply(Long.fromNumber(10));
+        significandLow = significandLow.add(Long.fromNumber(digits[dIdx]));
+      }
+    } else {
+      let dIdx = 0;
+      significandHigh = Long.fromNumber(digits[dIdx++]);
+
+      for (; dIdx <= lastDigit - 17; dIdx++) {
+        significandHigh = significandHigh.multiply(Long.fromNumber(10));
+        significandHigh = significandHigh.add(Long.fromNumber(digits[dIdx]));
+      }
+
+      significandLow = Long.fromNumber(digits[dIdx++]);
+
+      for (; dIdx <= lastDigit; dIdx++) {
+        significandLow = significandLow.multiply(Long.fromNumber(10));
+        significandLow = significandLow.add(Long.fromNumber(digits[dIdx]));
+      }
+    }
+
+    const significand = multiply64x2(significandHigh, Long.fromString('100000000000000000'));
+    significand.low = significand.low.add(significandLow);
+
+    if (lessThan(significand.low, significandLow)) {
+      significand.high = significand.high.add(Long.fromNumber(1));
+    }
+
+    // Biased exponent
+    biasedExponent = exponent + EXPONENT_BIAS;
+    const dec = { low: Long.fromNumber(0), high: Long.fromNumber(0) };
+
+    // Encode combination, exponent, and significand.
+    if (
+      significand.high.shiftRightUnsigned(49).and(Long.fromNumber(1)).equals(Long.fromNumber(1))
+    ) {
+      // Encode '11' into bits 1 to 3
+      dec.high = dec.high.or(Long.fromNumber(0x3).shiftLeft(61));
+      dec.high = dec.high.or(
+        Long.fromNumber(biasedExponent).and(Long.fromNumber(0x3fff).shiftLeft(47))
+      );
+      dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x7fffffffffff)));
+    } else {
+      dec.high = dec.high.or(Long.fromNumber(biasedExponent & 0x3fff).shiftLeft(49));
+      dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x1ffffffffffff)));
+    }
+
+    dec.low = significand.low;
+
+    // Encode sign
+    if (isNegative) {
+      dec.high = dec.high.or(Long.fromString('9223372036854775808'));
+    }
+
+    // Encode into a buffer
+    const buffer = ByteUtils.allocateUnsafe(16);
+    index = 0;
+
+    // Encode the low 64 bits of the decimal
+    // Encode low bits
+    buffer[index++] = dec.low.low & 0xff;
+    buffer[index++] = (dec.low.low >> 8) & 0xff;
+    buffer[index++] = (dec.low.low >> 16) & 0xff;
+    buffer[index++] = (dec.low.low >> 24) & 0xff;
+    // Encode high bits
+    buffer[index++] = dec.low.high & 0xff;
+    buffer[index++] = (dec.low.high >> 8) & 0xff;
+    buffer[index++] = (dec.low.high >> 16) & 0xff;
+    buffer[index++] = (dec.low.high >> 24) & 0xff;
+
+    // Encode the high 64 bits of the decimal
+    // Encode low bits
+    buffer[index++] = dec.high.low & 0xff;
+    buffer[index++] = (dec.high.low >> 8) & 0xff;
+    buffer[index++] = (dec.high.low >> 16) & 0xff;
+    buffer[index++] = (dec.high.low >> 24) & 0xff;
+    // Encode high bits
+    buffer[index++] = dec.high.high & 0xff;
+    buffer[index++] = (dec.high.high >> 8) & 0xff;
+    buffer[index++] = (dec.high.high >> 16) & 0xff;
+    buffer[index++] = (dec.high.high >> 24) & 0xff;
+
+    // Return the new Decimal128
+    return new Decimal128(buffer);
+  }
+  /** Create a string representation of the raw Decimal128 value */
+  toString(): string {
+    // Note: bits in this routine are referred to starting at 0,
+    // from the sign bit, towards the coefficient.
+
+    // decoded biased exponent (14 bits)
+    let biased_exponent;
+    // the number of significand digits
+    let significand_digits = 0;
+    // the base-10 digits in the significand
+    const significand = new Array<number>(36);
+    for (let i = 0; i < significand.length; i++) significand[i] = 0;
+    // read pointer into significand
+    let index = 0;
+
+    // true if the number is zero
+    let is_zero = false;
+
+    // the most significant significand bits (50-46)
+    let significand_msb;
+    // temporary storage for significand decoding
+    let significand128: { parts: [number, number, number, number] } = { parts: [0, 0, 0, 0] };
+    // indexing variables
+    let j, k;
+
+    // Output string
+    const string: string[] = [];
+
+    // Unpack index
+    index = 0;
+
+    // Buffer reference
+    const buffer = this.bytes;
+
+    // Unpack the low 64bits into a long
+    // bits 96 - 127
+    const low =
+      buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
+    // bits 64 - 95
+    const midl =
+      buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
+
+    // Unpack the high 64bits into a long
+    // bits 32 - 63
+    const midh =
+      buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
+    // bits 0 - 31
+    const high =
+      buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
+
+    // Unpack index
+    index = 0;
+
+    // Create the state of the decimal
+    const dec = {
+      low: new Long(low, midl),
+      high: new Long(midh, high)
+    };
+
+    if (dec.high.lessThan(Long.ZERO)) {
+      string.push('-');
+    }
+
+    // Decode combination field and exponent
+    // bits 1 - 5
+    const combination = (high >> 26) & COMBINATION_MASK;
+
+    if (combination >> 3 === 3) {
+      // Check for 'special' values
+      if (combination === COMBINATION_INFINITY) {
+        return string.join('') + 'Infinity';
+      } else if (combination === COMBINATION_NAN) {
+        return 'NaN';
+      } else {
+        biased_exponent = (high >> 15) & EXPONENT_MASK;
+        significand_msb = 0x08 + ((high >> 14) & 0x01);
+      }
+    } else {
+      significand_msb = (high >> 14) & 0x07;
+      biased_exponent = (high >> 17) & EXPONENT_MASK;
+    }
+
+    // unbiased exponent
+    const exponent = biased_exponent - EXPONENT_BIAS;
+
+    // Create string of significand digits
+
+    // Convert the 114-bit binary number represented by
+    // (significand_high, significand_low) to at most 34 decimal
+    // digits through modulo and division.
+    significand128.parts[0] = (high & 0x3fff) + ((significand_msb & 0xf) << 14);
+    significand128.parts[1] = midh;
+    significand128.parts[2] = midl;
+    significand128.parts[3] = low;
+
+    if (
+      significand128.parts[0] === 0 &&
+      significand128.parts[1] === 0 &&
+      significand128.parts[2] === 0 &&
+      significand128.parts[3] === 0
+    ) {
+      is_zero = true;
+    } else {
+      for (k = 3; k >= 0; k--) {
+        let least_digits = 0;
+        // Perform the divide
+        const result = divideu128(significand128);
+        significand128 = result.quotient;
+        least_digits = result.rem.low;
+
+        // We now have the 9 least significant digits (in base 2).
+        // Convert and output to string.
+        if (!least_digits) continue;
+
+        for (j = 8; j >= 0; j--) {
+          // significand[k * 9 + j] = Math.round(least_digits % 10);
+          significand[k * 9 + j] = least_digits % 10;
+          // least_digits = Math.round(least_digits / 10);
+          least_digits = Math.floor(least_digits / 10);
+        }
+      }
+    }
+
+    // Output format options:
+    // Scientific - [-]d.dddE(+/-)dd or [-]dE(+/-)dd
+    // Regular    - ddd.ddd
+
+    if (is_zero) {
+      significand_digits = 1;
+      significand[index] = 0;
+    } else {
+      significand_digits = 36;
+      while (!significand[index]) {
+        significand_digits = significand_digits - 1;
+        index = index + 1;
+      }
+    }
+
+    // the exponent if scientific notation is used
+    const scientific_exponent = significand_digits - 1 + exponent;
+
+    // The scientific exponent checks are dictated by the string conversion
+    // specification and are somewhat arbitrary cutoffs.
+    //
+    // We must check exponent > 0, because if this is the case, the number
+    // has trailing zeros.  However, we *cannot* output these trailing zeros,
+    // because doing so would change the precision of the value, and would
+    // change stored data if the string converted number is round tripped.
+    if (scientific_exponent >= 34 || scientific_exponent <= -7 || exponent > 0) {
+      // Scientific format
+
+      // if there are too many significant digits, we should just be treating numbers
+      // as + or - 0 and using the non-scientific exponent (this is for the "invalid
+      // representation should be treated as 0/-0" spec cases in decimal128-1.json)
+      if (significand_digits > 34) {
+        string.push(`${0}`);
+        if (exponent > 0) string.push(`E+${exponent}`);
+        else if (exponent < 0) string.push(`E${exponent}`);
+        return string.join('');
+      }
+
+      string.push(`${significand[index++]}`);
+      significand_digits = significand_digits - 1;
+
+      if (significand_digits) {
+        string.push('.');
+      }
+
+      for (let i = 0; i < significand_digits; i++) {
+        string.push(`${significand[index++]}`);
+      }
+
+      // Exponent
+      string.push('E');
+      if (scientific_exponent > 0) {
+        string.push(`+${scientific_exponent}`);
+      } else {
+        string.push(`${scientific_exponent}`);
+      }
+    } else {
+      // Regular format with no decimal place
+      if (exponent >= 0) {
+        for (let i = 0; i < significand_digits; i++) {
+          string.push(`${significand[index++]}`);
+        }
+      } else {
+        let radix_position = significand_digits + exponent;
+
+        // non-zero digits before radix
+        if (radix_position > 0) {
+          for (let i = 0; i < radix_position; i++) {
+            string.push(`${significand[index++]}`);
+          }
+        } else {
+          string.push('0');
+        }
+
+        string.push('.');
+        // add leading zeros after radix
+        while (radix_position++ < 0) {
+          string.push('0');
+        }
+
+        for (let i = 0; i < significand_digits - Math.max(radix_position - 1, 0); i++) {
+          string.push(`${significand[index++]}`);
+        }
+      }
+    }
+
+    return string.join('');
+  }
+
+  toJSON(): Decimal128Extended {
+    return { $numberDecimal: this.toString() };
+  }
+
+  /** @internal */
+  toExtendedJSON(): Decimal128Extended {
+    return { $numberDecimal: this.toString() };
+  }
+
+  /** @internal */
+  static fromExtendedJSON(doc: Decimal128Extended): Decimal128 {
+    return Decimal128.fromString(doc.$numberDecimal);
+  }
+
+  inspect(depth?: number, options?: unknown, inspect?: InspectFn): string {
+    inspect ??= defaultInspect;
+    const d128string = inspect(this.toString(), options);
+    return `new Decimal128(${d128string})`;
+  }
+}
diff --git a/backend/node_modules/bson/src/double.ts b/backend/node_modules/bson/src/double.ts
new file mode 100644
index 0000000..4a3d129
--- /dev/null
+++ b/backend/node_modules/bson/src/double.ts
@@ -0,0 +1,115 @@
+import { BSONValue } from './bson_value';
+import { BSONError } from './error';
+import type { EJSONOptions } from './extended_json';
+import { type InspectFn, defaultInspect } from './parser/utils';
+
+/** @public */
+export interface DoubleExtended {
+  $numberDouble: string;
+}
+
+/**
+ * A class representation of the BSON Double type.
+ * @public
+ * @category BSONType
+ */
+export class Double extends BSONValue {
+  get _bsontype(): 'Double' {
+    return 'Double';
+  }
+
+  value!: number;
+  /**
+   * Create a Double type
+   *
+   * @param value - the number we want to represent as a double.
+   */
+  constructor(value: number) {
+    super();
+    if ((value as unknown) instanceof Number) {
+      value = value.valueOf();
+    }
+
+    this.value = +value;
+  }
+
+  /**
+   * Attempt to create an double type from string.
+   *
+   * This method will throw a BSONError on any string input that is not representable as a IEEE-754 64-bit double.
+   * Notably, this method will also throw on the following string formats:
+   * - Strings in non-decimal and non-exponential formats (binary, hex, or octal digits)
+   * - Strings with characters other than numeric, floating point, or leading sign characters (Note: 'Infinity', '-Infinity', and 'NaN' input strings are still allowed)
+   * - Strings with leading and/or trailing whitespace
+   *
+   * Strings with leading zeros, however, are also allowed
+   *
+   * @param value - the string we want to represent as a double.
+   */
+  static fromString(value: string): Double {
+    const coercedValue = Number(value);
+
+    if (value === 'NaN') return new Double(NaN);
+    if (value === 'Infinity') return new Double(Infinity);
+    if (value === '-Infinity') return new Double(-Infinity);
+
+    if (!Number.isFinite(coercedValue)) {
+      throw new BSONError(`Input: ${value} is not representable as a Double`);
+    }
+    if (value.trim() !== value) {
+      throw new BSONError(`Input: '${value}' contains whitespace`);
+    }
+    if (value === '') {
+      throw new BSONError(`Input is an empty string`);
+    }
+    if (/[^-0-9.+eE]/.test(value)) {
+      throw new BSONError(`Input: '${value}' is not in decimal or exponential notation`);
+    }
+    return new Double(coercedValue);
+  }
+
+  /**
+   * Access the number value.
+   *
+   * @returns returns the wrapped double number.
+   */
+  valueOf(): number {
+    return this.value;
+  }
+
+  toJSON(): number {
+    return this.value;
+  }
+
+  toString(radix?: number): string {
+    return this.value.toString(radix);
+  }
+
+  /** @internal */
+  toExtendedJSON(options?: EJSONOptions): number | DoubleExtended {
+    if (options && (options.legacy || (options.relaxed && isFinite(this.value)))) {
+      return this.value;
+    }
+
+    if (Object.is(Math.sign(this.value), -0)) {
+      // NOTE: JavaScript has +0 and -0, apparently to model limit calculations. If a user
+      // explicitly provided `-0` then we need to ensure the sign makes it into the output
+      return { $numberDouble: '-0.0' };
+    }
+
+    return {
+      $numberDouble: Number.isInteger(this.value) ? this.value.toFixed(1) : this.value.toString()
+    };
+  }
+
+  /** @internal */
+  static fromExtendedJSON(doc: DoubleExtended, options?: EJSONOptions): number | Double {
+    const doubleValue = parseFloat(doc.$numberDouble);
+    return options && options.relaxed ? doubleValue : new Double(doubleValue);
+  }
+
+  inspect(depth?: number, options?: unknown, inspect?: InspectFn): string {
+    inspect ??= defaultInspect;
+    return `new Double(${inspect(this.value, options)})`;
+  }
+}
diff --git a/backend/node_modules/bson/src/error.ts b/backend/node_modules/bson/src/error.ts
new file mode 100644
index 0000000..ef5184a
--- /dev/null
+++ b/backend/node_modules/bson/src/error.ts
@@ -0,0 +1,105 @@
+import { BSON_MAJOR_VERSION } from './constants';
+
+/**
+ * @public
+ * @category Error
+ *
+ * `BSONError` objects are thrown when BSON encounters an error.
+ *
+ * This is the parent class for all the other errors thrown by this library.
+ */
+export class BSONError extends Error {
+  /**
+   * @internal
+   * The underlying algorithm for isBSONError may change to improve how strict it is
+   * about determining if an input is a BSONError. But it must remain backwards compatible
+   * with previous minors & patches of the current major version.
+   */
+  protected get bsonError(): true {
+    return true;
+  }
+
+  override get name(): string {
+    return 'BSONError';
+  }
+
+  constructor(message: string, options?: { cause?: unknown }) {
+    super(message, options);
+  }
+
+  /**
+   * @public
+   *
+   * All errors thrown from the BSON library inherit from `BSONError`.
+   * This method can assist with determining if an error originates from the BSON library
+   * even if it does not pass an `instanceof` check against this class' constructor.
+   *
+   * @param value - any javascript value that needs type checking
+   */
+  public static isBSONError(value: unknown): value is BSONError {
+    return (
+      value != null &&
+      typeof value === 'object' &&
+      'bsonError' in value &&
+      value.bsonError === true &&
+      // Do not access the following properties, just check existence
+      'name' in value &&
+      'message' in value &&
+      'stack' in value
+    );
+  }
+}
+
+/**
+ * @public
+ * @category Error
+ */
+export class BSONVersionError extends BSONError {
+  get name(): 'BSONVersionError' {
+    return 'BSONVersionError';
+  }
+
+  constructor() {
+    super(`Unsupported BSON version, bson types must be from bson ${BSON_MAJOR_VERSION}.x.x`);
+  }
+}
+
+/**
+ * @public
+ * @category Error
+ *
+ * An error generated when BSON functions encounter an unexpected input
+ * or reaches an unexpected/invalid internal state
+ *
+ */
+export class BSONRuntimeError extends BSONError {
+  get name(): 'BSONRuntimeError' {
+    return 'BSONRuntimeError';
+  }
+
+  constructor(message: string) {
+    super(message);
+  }
+}
+
+/**
+ * @public
+ * @category Error
+ *
+ * @experimental
+ *
+ * An error generated when BSON bytes are invalid.
+ * Reports the offset the parser was able to reach before encountering the error.
+ */
+export class BSONOffsetError extends BSONError {
+  public get name(): 'BSONOffsetError' {
+    return 'BSONOffsetError';
+  }
+
+  public offset: number;
+
+  constructor(message: string, offset: number, options?: { cause?: unknown }) {
+    super(`${message}. offset: ${offset}`, options);
+    this.offset = offset;
+  }
+}
diff --git a/backend/node_modules/bson/src/extended_json.ts b/backend/node_modules/bson/src/extended_json.ts
new file mode 100644
index 0000000..7727ce9
--- /dev/null
+++ b/backend/node_modules/bson/src/extended_json.ts
@@ -0,0 +1,516 @@
+import { Binary } from './binary';
+import type { Document } from './bson';
+import { Code } from './code';
+import {
+  BSON_INT32_MAX,
+  BSON_INT32_MIN,
+  BSON_INT64_MAX,
+  BSON_INT64_MIN,
+  BSON_MAJOR_VERSION,
+  BSON_VERSION_SYMBOL
+} from './constants';
+import { DBRef, isDBRefLike } from './db_ref';
+import { Decimal128 } from './decimal128';
+import { Double } from './double';
+import { BSONError, BSONRuntimeError, BSONVersionError } from './error';
+import { Int32 } from './int_32';
+import { Long } from './long';
+import { MaxKey } from './max_key';
+import { MinKey } from './min_key';
+import { ObjectId } from './objectid';
+import { isDate, isRegExp, isMap } from './parser/utils';
+import { BSONRegExp } from './regexp';
+import { BSONSymbol } from './symbol';
+import { Timestamp } from './timestamp';
+
+/** @public */
+export type EJSONOptions = {
+  /**
+   * Output using the Extended JSON v1 spec
+   * @defaultValue `false`
+   */
+  legacy?: boolean;
+  /**
+   * Enable Extended JSON's `relaxed` mode, which attempts to return native JS types where possible, rather than BSON types
+   * @defaultValue `false` */
+  relaxed?: boolean;
+  /**
+   * Enable native bigint support
+   * @defaultValue `false`
+   */
+  useBigInt64?: boolean;
+};
+
+/** @internal */
+type BSONType =
+  | Binary
+  | Code
+  | DBRef
+  | Decimal128
+  | Double
+  | Int32
+  | Long
+  | MaxKey
+  | MinKey
+  | ObjectId
+  | BSONRegExp
+  | BSONSymbol
+  | Timestamp;
+
+function isBSONType(value: unknown): value is BSONType {
+  return (
+    value != null &&
+    typeof value === 'object' &&
+    '_bsontype' in value &&
+    typeof value._bsontype === 'string'
+  );
+}
+
+// all the types where we don't need to do any special processing and can just pass the EJSON
+//straight to type.fromExtendedJSON
+const keysToCodecs = {
+  $oid: ObjectId,
+  $binary: Binary,
+  $uuid: Binary,
+  $symbol: BSONSymbol,
+  $numberInt: Int32,
+  $numberDecimal: Decimal128,
+  $numberDouble: Double,
+  $numberLong: Long,
+  $minKey: MinKey,
+  $maxKey: MaxKey,
+  $regex: BSONRegExp,
+  $regularExpression: BSONRegExp,
+  $timestamp: Timestamp
+} as const;
+
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+function deserializeValue(value: any, options: EJSONOptions = {}) {
+  if (typeof value === 'number') {
+    // TODO(NODE-4377): EJSON js number handling diverges from BSON
+    const in32BitRange = value <= BSON_INT32_MAX && value >= BSON_INT32_MIN;
+    const in64BitRange = value <= BSON_INT64_MAX && value >= BSON_INT64_MIN;
+
+    if (options.relaxed || options.legacy) {
+      return value;
+    }
+
+    if (Number.isInteger(value) && !Object.is(value, -0)) {
+      // interpret as being of the smallest BSON integer type that can represent the number exactly
+      if (in32BitRange) {
+        return new Int32(value);
+      }
+      if (in64BitRange) {
+        if (options.useBigInt64) {
+          // eslint-disable-next-line no-restricted-globals -- This is allowed here as useBigInt64=true
+          return BigInt(value);
+        }
+        return Long.fromNumber(value);
+      }
+    }
+
+    // If the number is a non-integer or out of integer range, should interpret as BSON Double.
+    return new Double(value);
+  }
+
+  // from here on out we're looking for bson types, so bail if its not an object
+  if (value == null || typeof value !== 'object') return value;
+
+  // upgrade deprecated undefined to null
+  if (value.$undefined) return null;
+
+  const keys = Object.keys(value).filter(
+    k => k.startsWith('$') && value[k] != null
+  ) as (keyof typeof keysToCodecs)[];
+  for (let i = 0; i < keys.length; i++) {
+    const c = keysToCodecs[keys[i]];
+    if (c) return c.fromExtendedJSON(value, options);
+  }
+
+  if (value.$date != null) {
+    const d = value.$date;
+    const date = new Date();
+
+    if (options.legacy) {
+      if (typeof d === 'number') date.setTime(d);
+      else if (typeof d === 'string') date.setTime(Date.parse(d));
+      else if (typeof d === 'bigint') date.setTime(Number(d));
+      else throw new BSONRuntimeError(`Unrecognized type for EJSON date: ${typeof d}`);
+    } else {
+      if (typeof d === 'string') date.setTime(Date.parse(d));
+      else if (Long.isLong(d)) date.setTime(d.toNumber());
+      else if (typeof d === 'number' && options.relaxed) date.setTime(d);
+      else if (typeof d === 'bigint') date.setTime(Number(d));
+      else throw new BSONRuntimeError(`Unrecognized type for EJSON date: ${typeof d}`);
+    }
+    return date;
+  }
+
+  if (value.$code != null) {
+    const copy = Object.assign({}, value);
+    if (value.$scope) {
+      copy.$scope = deserializeValue(value.$scope);
+    }
+
+    return Code.fromExtendedJSON(value);
+  }
+
+  if (isDBRefLike(value) || value.$dbPointer) {
+    const v = value.$ref ? value : value.$dbPointer;
+
+    // we run into this in a "degenerate EJSON" case (with $id and $ref order flipped)
+    // because of the order JSON.parse goes through the document
+    if (v instanceof DBRef) return v;
+
+    const dollarKeys = Object.keys(v).filter(k => k.startsWith('$'));
+    let valid = true;
+    dollarKeys.forEach(k => {
+      if (['$ref', '$id', '$db'].indexOf(k) === -1) valid = false;
+    });
+
+    // only make DBRef if $ keys are all valid
+    if (valid) return DBRef.fromExtendedJSON(v);
+  }
+
+  return value;
+}
+
+type EJSONSerializeOptions = EJSONOptions & {
+  seenObjects: { obj: unknown; propertyName: string }[];
+};
+
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+function serializeArray(array: any[], options: EJSONSerializeOptions): any[] {
+  return array.map((v: unknown, index: number) => {
+    options.seenObjects.push({ propertyName: `index ${index}`, obj: null });
+    try {
+      return serializeValue(v, options);
+    } finally {
+      options.seenObjects.pop();
+    }
+  });
+}
+
+function getISOString(date: Date) {
+  const isoStr = date.toISOString();
+  // we should only show milliseconds in timestamp if they're non-zero
+  return date.getUTCMilliseconds() !== 0 ? isoStr : isoStr.slice(0, -5) + 'Z';
+}
+
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+function serializeValue(value: any, options: EJSONSerializeOptions): any {
+  if (value instanceof Map || isMap(value)) {
+    const obj: Record<string, unknown> = Object.create(null);
+    for (const [k, v] of value) {
+      if (typeof k !== 'string') {
+        throw new BSONError('Can only serialize maps with string keys');
+      }
+      obj[k] = v;
+    }
+
+    return serializeValue(obj, options);
+  }
+
+  if ((typeof value === 'object' || typeof value === 'function') && value !== null) {
+    const index = options.seenObjects.findIndex(entry => entry.obj === value);
+    if (index !== -1) {
+      const props = options.seenObjects.map(entry => entry.propertyName);
+      const leadingPart = props
+        .slice(0, index)
+        .map(prop => `${prop} -> `)
+        .join('');
+      const alreadySeen = props[index];
+      const circularPart =
+        ' -> ' +
+        props
+          .slice(index + 1, props.length - 1)
+          .map(prop => `${prop} -> `)
+          .join('');
+      const current = props[props.length - 1];
+      const leadingSpace = ' '.repeat(leadingPart.length + alreadySeen.length / 2);
+      const dashes = '-'.repeat(
+        circularPart.length + (alreadySeen.length + current.length) / 2 - 1
+      );
+
+      throw new BSONError(
+        'Converting circular structure to EJSON:\n' +
+          `    ${leadingPart}${alreadySeen}${circularPart}${current}\n` +
+          `    ${leadingSpace}\\${dashes}/`
+      );
+    }
+    options.seenObjects[options.seenObjects.length - 1].obj = value;
+  }
+
+  if (Array.isArray(value)) return serializeArray(value, options);
+
+  if (value === undefined) return null;
+
+  if (value instanceof Date || isDate(value)) {
+    const dateNum = value.getTime(),
+      // is it in year range 1970-9999?
+      inRange = dateNum > -1 && dateNum < 253402318800000;
+
+    if (options.legacy) {
+      return options.relaxed && inRange
+        ? { $date: value.getTime() }
+        : { $date: getISOString(value) };
+    }
+    return options.relaxed && inRange
+      ? { $date: getISOString(value) }
+      : { $date: { $numberLong: value.getTime().toString() } };
+  }
+
+  if (typeof value === 'number' && (!options.relaxed || !isFinite(value))) {
+    if (Number.isInteger(value) && !Object.is(value, -0)) {
+      // interpret as being of the smallest BSON integer type that can represent the number exactly
+      if (value >= BSON_INT32_MIN && value <= BSON_INT32_MAX) {
+        return { $numberInt: value.toString() };
+      }
+      if (value >= BSON_INT64_MIN && value <= BSON_INT64_MAX) {
+        // TODO(NODE-4377): EJSON js number handling diverges from BSON
+        return { $numberLong: value.toString() };
+      }
+    }
+    return { $numberDouble: Object.is(value, -0) ? '-0.0' : value.toString() };
+  }
+
+  if (typeof value === 'bigint') {
+    /* eslint-disable no-restricted-globals -- This is allowed as we are accepting a bigint as input */
+    if (!options.relaxed) {
+      return { $numberLong: BigInt.asIntN(64, value).toString() };
+    }
+    return Number(BigInt.asIntN(64, value));
+    /* eslint-enable */
+  }
+
+  if (value instanceof RegExp || isRegExp(value)) {
+    let flags = value.flags;
+    if (flags === undefined) {
+      const match = value.toString().match(/[gimuy]*$/);
+      if (match) {
+        flags = match[0];
+      }
+    }
+
+    const rx = new BSONRegExp(value.source, flags);
+    return rx.toExtendedJSON(options);
+  }
+
+  if (value != null && typeof value === 'object') return serializeDocument(value, options);
+  return value;
+}
+
+const BSON_TYPE_MAPPINGS = {
+  Binary: (o: Binary) => new Binary(o.value(), o.sub_type),
+  Code: (o: Code) => new Code(o.code, o.scope),
+  DBRef: (o: DBRef) => new DBRef(o.collection || o.namespace, o.oid, o.db, o.fields), // "namespace" for 1.x library backwards compat
+  Decimal128: (o: Decimal128) => new Decimal128(o.bytes),
+  Double: (o: Double) => new Double(o.value),
+  Int32: (o: Int32) => new Int32(o.value),
+  Long: (
+    o: Long & {
+      low_: number;
+      high_: number;
+      unsigned_: boolean | undefined;
+    }
+  ) =>
+    Long.fromBits(
+      // underscore variants for 1.x backwards compatibility
+      o.low != null ? o.low : o.low_,
+      o.low != null ? o.high : o.high_,
+      o.low != null ? o.unsigned : o.unsigned_
+    ),
+  MaxKey: () => new MaxKey(),
+  MinKey: () => new MinKey(),
+  ObjectId: (o: ObjectId) => new ObjectId(o),
+  BSONRegExp: (o: BSONRegExp) => new BSONRegExp(o.pattern, o.options),
+  BSONSymbol: (o: BSONSymbol) => new BSONSymbol(o.value),
+  Timestamp: (o: Timestamp) => Timestamp.fromBits(o.low, o.high)
+} as const;
+
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+function serializeDocument(doc: any, options: EJSONSerializeOptions) {
+  if (doc == null || typeof doc !== 'object') throw new BSONError('not an object instance');
+
+  const bsontype: BSONType['_bsontype'] = doc._bsontype;
+  if (typeof bsontype === 'undefined') {
+    // It's a regular object. Recursively serialize its property values.
+    const _doc: Document = {};
+    for (const name of Object.keys(doc)) {
+      options.seenObjects.push({ propertyName: name, obj: null });
+      try {
+        const value = serializeValue(doc[name], options);
+        if (name === '__proto__') {
+          Object.defineProperty(_doc, name, {
+            value,
+            writable: true,
+            enumerable: true,
+            configurable: true
+          });
+        } else {
+          _doc[name] = value;
+        }
+      } finally {
+        options.seenObjects.pop();
+      }
+    }
+    return _doc;
+  } else if (
+    doc != null &&
+    typeof doc === 'object' &&
+    typeof doc._bsontype === 'string' &&
+    doc[BSON_VERSION_SYMBOL] !== BSON_MAJOR_VERSION
+  ) {
+    throw new BSONVersionError();
+  } else if (isBSONType(doc)) {
+    // the "document" is really just a BSON type object
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    let outDoc: any = doc;
+    if (typeof outDoc.toExtendedJSON !== 'function') {
+      // There's no EJSON serialization function on the object. It's probably an
+      // object created by a previous version of this library (or another library)
+      // that's duck-typing objects to look like they were generated by this library).
+      // Copy the object into this library's version of that type.
+      const mapper = BSON_TYPE_MAPPINGS[doc._bsontype];
+      if (!mapper) {
+        throw new BSONError('Unrecognized or invalid _bsontype: ' + doc._bsontype);
+      }
+      outDoc = mapper(outDoc);
+    }
+
+    // Two BSON types may have nested objects that may need to be serialized too
+    if (bsontype === 'Code' && outDoc.scope) {
+      outDoc = new Code(outDoc.code, serializeValue(outDoc.scope, options));
+    } else if (bsontype === 'DBRef' && outDoc.oid) {
+      outDoc = new DBRef(
+        serializeValue(outDoc.collection, options),
+        serializeValue(outDoc.oid, options),
+        serializeValue(outDoc.db, options),
+        serializeValue(outDoc.fields, options)
+      );
+    }
+
+    return outDoc.toExtendedJSON(options);
+  } else {
+    throw new BSONError('_bsontype must be a string, but was: ' + typeof bsontype);
+  }
+}
+
+/**
+ * Parse an Extended JSON string, constructing the JavaScript value or object described by that
+ * string.
+ *
+ * @example
+ * ```js
+ * const { EJSON } = require('bson');
+ * const text = '{ "int32": { "$numberInt": "10" } }';
+ *
+ * // prints { int32: { [String: '10'] _bsontype: 'Int32', value: '10' } }
+ * console.log(EJSON.parse(text, { relaxed: false }));
+ *
+ * // prints { int32: 10 }
+ * console.log(EJSON.parse(text));
+ * ```
+ */
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+function parse(text: string, options?: EJSONOptions): any {
+  const ejsonOptions = {
+    useBigInt64: options?.useBigInt64 ?? false,
+    relaxed: options?.relaxed ?? true,
+    legacy: options?.legacy ?? false
+  };
+  return JSON.parse(text, (key, value) => {
+    if (key.indexOf('\x00') !== -1) {
+      throw new BSONError(
+        `BSON Document field names cannot contain null bytes, found: ${JSON.stringify(key)}`
+      );
+    }
+    return deserializeValue(value, ejsonOptions);
+  });
+}
+
+/**
+ * Converts a BSON document to an Extended JSON string, optionally replacing values if a replacer
+ * function is specified or optionally including only the specified properties if a replacer array
+ * is specified.
+ *
+ * @param value - The value to convert to extended JSON
+ * @param replacer - A function that alters the behavior of the stringification process, or an array of String and Number objects that serve as a whitelist for selecting/filtering the properties of the value object to be included in the JSON string. If this value is null or not provided, all properties of the object are included in the resulting JSON string
+ * @param space - A String or Number object that's used to insert white space into the output JSON string for readability purposes.
+ * @param options - Optional settings
+ *
+ * @example
+ * ```js
+ * const { EJSON } = require('bson');
+ * const Int32 = require('mongodb').Int32;
+ * const doc = { int32: new Int32(10) };
+ *
+ * // prints '{"int32":{"$numberInt":"10"}}'
+ * console.log(EJSON.stringify(doc, { relaxed: false }));
+ *
+ * // prints '{"int32":10}'
+ * console.log(EJSON.stringify(doc));
+ * ```
+ */
+function stringify(
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  value: any,
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  replacer?: (number | string)[] | ((this: any, key: string, value: any) => any) | EJSONOptions,
+  space?: string | number,
+  options?: EJSONOptions
+): string {
+  if (space != null && typeof space === 'object') {
+    options = space;
+    space = 0;
+  }
+  if (replacer != null && typeof replacer === 'object' && !Array.isArray(replacer)) {
+    options = replacer;
+    replacer = undefined;
+    space = 0;
+  }
+  const serializeOptions = Object.assign({ relaxed: true, legacy: false }, options, {
+    seenObjects: [{ propertyName: '(root)', obj: null }]
+  });
+
+  const doc = serializeValue(value, serializeOptions);
+  return JSON.stringify(doc, replacer as Parameters<JSON['stringify']>[1], space);
+}
+
+/**
+ * Serializes an object to an Extended JSON string, and reparse it as a JavaScript object.
+ *
+ * @param value - The object to serialize
+ * @param options - Optional settings passed to the `stringify` function
+ */
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+function EJSONserialize(value: any, options?: EJSONOptions): Document {
+  options = options || {};
+  return JSON.parse(stringify(value, options));
+}
+
+/**
+ * Deserializes an Extended JSON object into a plain JavaScript object with native/BSON types
+ *
+ * @param ejson - The Extended JSON object to deserialize
+ * @param options - Optional settings passed to the parse method
+ */
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+function EJSONdeserialize(ejson: Document, options?: EJSONOptions): any {
+  options = options || {};
+  return parse(JSON.stringify(ejson), options);
+}
+
+/** @public */
+const EJSON: {
+  parse: typeof parse;
+  stringify: typeof stringify;
+  serialize: typeof EJSONserialize;
+  deserialize: typeof EJSONdeserialize;
+} = Object.create(null);
+EJSON.parse = parse;
+EJSON.stringify = stringify;
+EJSON.serialize = EJSONserialize;
+EJSON.deserialize = EJSONdeserialize;
+Object.freeze(EJSON);
+export { EJSON };
diff --git a/backend/node_modules/bson/src/index.ts b/backend/node_modules/bson/src/index.ts
new file mode 100644
index 0000000..5ef4157
--- /dev/null
+++ b/backend/node_modules/bson/src/index.ts
@@ -0,0 +1,19 @@
+import * as BSON from './bson';
+
+// Export all named properties from BSON to support
+// import { ObjectId, serialize } from 'bson';
+// const { ObjectId, serialize } = require('bson');
+export * from './bson';
+
+// Export BSON as a namespace to support:
+// import { BSON } from 'bson';
+// const { BSON } = require('bson');
+export { BSON };
+
+// BSON does **NOT** have a default export
+
+// The following will crash in es module environments
+// import BSON from 'bson';
+
+// The following will work as expected, BSON as a namespace of all the APIs (BSON.ObjectId, BSON.serialize)
+// const BSON = require('bson');
diff --git a/backend/node_modules/bson/src/int_32.ts b/backend/node_modules/bson/src/int_32.ts
new file mode 100644
index 0000000..7c95027
--- /dev/null
+++ b/backend/node_modules/bson/src/int_32.ts
@@ -0,0 +1,101 @@
+import { BSONValue } from './bson_value';
+import { BSON_INT32_MAX, BSON_INT32_MIN } from './constants';
+import { BSONError } from './error';
+import type { EJSONOptions } from './extended_json';
+import { type InspectFn, defaultInspect } from './parser/utils';
+import { removeLeadingZerosAndExplicitPlus } from './utils/string_utils';
+
+/** @public */
+export interface Int32Extended {
+  $numberInt: string;
+}
+
+/**
+ * A class representation of a BSON Int32 type.
+ * @public
+ * @category BSONType
+ */
+export class Int32 extends BSONValue {
+  get _bsontype(): 'Int32' {
+    return 'Int32';
+  }
+
+  value!: number;
+  /**
+   * Create an Int32 type
+   *
+   * @param value - the number we want to represent as an int32.
+   */
+  constructor(value: number | string) {
+    super();
+    if ((value as unknown) instanceof Number) {
+      value = value.valueOf();
+    }
+
+    this.value = +value | 0;
+  }
+
+  /**
+   * Attempt to create an Int32 type from string.
+   *
+   * This method will throw a BSONError on any string input that is not representable as an Int32.
+   * Notably, this method will also throw on the following string formats:
+   * - Strings in non-decimal formats (exponent notation, binary, hex, or octal digits)
+   * - Strings non-numeric and non-leading sign characters (ex: '2.0', '24,000')
+   * - Strings with leading and/or trailing whitespace
+   *
+   * Strings with leading zeros, however, are allowed.
+   *
+   * @param value - the string we want to represent as an int32.
+   */
+  static fromString(value: string): Int32 {
+    const cleanedValue = removeLeadingZerosAndExplicitPlus(value);
+
+    const coercedValue = Number(value);
+
+    if (BSON_INT32_MAX < coercedValue) {
+      throw new BSONError(`Input: '${value}' is larger than the maximum value for Int32`);
+    } else if (BSON_INT32_MIN > coercedValue) {
+      throw new BSONError(`Input: '${value}' is smaller than the minimum value for Int32`);
+    } else if (!Number.isSafeInteger(coercedValue)) {
+      throw new BSONError(`Input: '${value}' is not a safe integer`);
+    } else if (coercedValue.toString() !== cleanedValue) {
+      // catch all case
+      throw new BSONError(`Input: '${value}' is not a valid Int32 string`);
+    }
+    return new Int32(coercedValue);
+  }
+
+  /**
+   * Access the number value.
+   *
+   * @returns returns the wrapped int32 number.
+   */
+  valueOf(): number {
+    return this.value;
+  }
+
+  toString(radix?: number): string {
+    return this.value.toString(radix);
+  }
+
+  toJSON(): number {
+    return this.value;
+  }
+
+  /** @internal */
+  toExtendedJSON(options?: EJSONOptions): number | Int32Extended {
+    if (options && (options.relaxed || options.legacy)) return this.value;
+    return { $numberInt: this.value.toString() };
+  }
+
+  /** @internal */
+  static fromExtendedJSON(doc: Int32Extended, options?: EJSONOptions): number | Int32 {
+    return options && options.relaxed ? parseInt(doc.$numberInt, 10) : new Int32(doc.$numberInt);
+  }
+
+  inspect(depth?: number, options?: unknown, inspect?: InspectFn): string {
+    inspect ??= defaultInspect;
+    return `new Int32(${inspect(this.value, options)})`;
+  }
+}
diff --git a/backend/node_modules/bson/src/long.ts b/backend/node_modules/bson/src/long.ts
new file mode 100644
index 0000000..f12eb26
--- /dev/null
+++ b/backend/node_modules/bson/src/long.ts
@@ -0,0 +1,1245 @@
+import { BSONValue } from './bson_value';
+import { BSONError } from './error';
+import type { EJSONOptions } from './extended_json';
+import { type InspectFn, defaultInspect } from './parser/utils';
+import type { Timestamp } from './timestamp';
+import * as StringUtils from './utils/string_utils';
+
+interface LongWASMHelpers {
+  /** Gets the high bits of the last operation performed */
+  get_high(this: void): number;
+  div_u(
+    this: void,
+    lowBits: number,
+    highBits: number,
+    lowBitsDivisor: number,
+    highBitsDivisor: number
+  ): number;
+  div_s(
+    this: void,
+    lowBits: number,
+    highBits: number,
+    lowBitsDivisor: number,
+    highBitsDivisor: number
+  ): number;
+  rem_u(
+    this: void,
+    lowBits: number,
+    highBits: number,
+    lowBitsDivisor: number,
+    highBitsDivisor: number
+  ): number;
+  rem_s(
+    this: void,
+    lowBits: number,
+    highBits: number,
+    lowBitsDivisor: number,
+    highBitsDivisor: number
+  ): number;
+  mul(
+    this: void,
+    lowBits: number,
+    highBits: number,
+    lowBitsMultiplier: number,
+    highBitsMultiplier: number
+  ): number;
+}
+
+/**
+ * wasm optimizations, to do native i64 multiplication and divide
+ */
+let wasm: LongWASMHelpers | undefined = undefined;
+
+/* We do not want to have to include DOM types just for this check */
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+declare const WebAssembly: any;
+
+try {
+  wasm = new WebAssembly.Instance(
+    new WebAssembly.Module(
+      // prettier-ignore
+      new Uint8Array([0, 97, 115, 109, 1, 0, 0, 0, 1, 13, 2, 96, 0, 1, 127, 96, 4, 127, 127, 127, 127, 1, 127, 3, 7, 6, 0, 1, 1, 1, 1, 1, 6, 6, 1, 127, 1, 65, 0, 11, 7, 50, 6, 3, 109, 117, 108, 0, 1, 5, 100, 105, 118, 95, 115, 0, 2, 5, 100, 105, 118, 95, 117, 0, 3, 5, 114, 101, 109, 95, 115, 0, 4, 5, 114, 101, 109, 95, 117, 0, 5, 8, 103, 101, 116, 95, 104, 105, 103, 104, 0, 0, 10, 191, 1, 6, 4, 0, 35, 0, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 126, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 127, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 128, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 129, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 130, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11])
+    ),
+    {}
+  ).exports as unknown as LongWASMHelpers;
+} catch {
+  // no wasm support
+}
+
+const TWO_PWR_16_DBL = 1 << 16;
+const TWO_PWR_24_DBL = 1 << 24;
+const TWO_PWR_32_DBL = TWO_PWR_16_DBL * TWO_PWR_16_DBL;
+const TWO_PWR_64_DBL = TWO_PWR_32_DBL * TWO_PWR_32_DBL;
+const TWO_PWR_63_DBL = TWO_PWR_64_DBL / 2;
+
+/** A cache of the Long representations of small integer values. */
+const INT_CACHE: { [key: number]: Long } = {};
+
+/** A cache of the Long representations of small unsigned integer values. */
+const UINT_CACHE: { [key: number]: Long } = {};
+
+const MAX_INT64_STRING_LENGTH = 20;
+
+const DECIMAL_REG_EX = /^(\+?0|(\+|-)?[1-9][0-9]*)$/;
+
+/** @public */
+export interface LongExtended {
+  $numberLong: string;
+}
+
+/**
+ * A class representing a 64-bit integer
+ * @public
+ * @category BSONType
+ * @remarks
+ * The internal representation of a long is the two given signed, 32-bit values.
+ * We use 32-bit pieces because these are the size of integers on which
+ * Javascript performs bit-operations.  For operations like addition and
+ * multiplication, we split each number into 16 bit pieces, which can easily be
+ * multiplied within Javascript's floating-point representation without overflow
+ * or change in sign.
+ * In the algorithms below, we frequently reduce the negative case to the
+ * positive case by negating the input(s) and then post-processing the result.
+ * Note that we must ALWAYS check specially whether those values are MIN_VALUE
+ * (-2^63) because -MIN_VALUE == MIN_VALUE (since 2^63 cannot be represented as
+ * a positive number, it overflows back into a negative).  Not handling this
+ * case would often result in infinite recursion.
+ * Common constant values ZERO, ONE, NEG_ONE, etc. are found as static properties on this class.
+ */
+export class Long extends BSONValue {
+  get _bsontype(): 'Long' {
+    return 'Long';
+  }
+
+  /** An indicator used to reliably determine if an object is a Long or not. */
+  get __isLong__(): boolean {
+    return true;
+  }
+
+  /**
+   * The high 32 bits as a signed value.
+   */
+  high: number;
+
+  /**
+   * The low 32 bits as a signed value.
+   */
+  low: number;
+
+  /**
+   * Whether unsigned or not.
+   */
+  unsigned: boolean;
+
+  /**
+   * Constructs a 64 bit two's-complement integer, given its low and high 32 bit values as *signed* integers.
+   *
+   * @param low - The low (signed) 32 bits of the long
+   * @param high - The high (signed) 32 bits of the long
+   * @param unsigned - Whether unsigned or not, defaults to signed
+   */
+  constructor(low: number, high?: number, unsigned?: boolean);
+  /**
+   * Constructs a 64 bit two's-complement integer, given a bigint representation.
+   *
+   * @param value - BigInt representation of the long value
+   * @param unsigned - Whether unsigned or not, defaults to signed
+   */
+  constructor(value: bigint, unsigned?: boolean);
+  /**
+   * Constructs a 64 bit two's-complement integer, given a string representation.
+   *
+   * @param value - String representation of the long value
+   * @param unsigned - Whether unsigned or not, defaults to signed
+   */
+  constructor(value: string, unsigned?: boolean);
+  constructor(
+    lowOrValue: number | bigint | string = 0,
+    highOrUnsigned?: number | boolean,
+    unsigned?: boolean
+  ) {
+    super();
+    const unsignedBool = typeof highOrUnsigned === 'boolean' ? highOrUnsigned : Boolean(unsigned);
+    const high = typeof highOrUnsigned === 'number' ? highOrUnsigned : 0;
+    const res =
+      typeof lowOrValue === 'string'
+        ? Long.fromString(lowOrValue, unsignedBool)
+        : typeof lowOrValue === 'bigint'
+          ? Long.fromBigInt(lowOrValue, unsignedBool)
+          : { low: lowOrValue | 0, high: high | 0, unsigned: unsignedBool };
+    this.low = res.low;
+    this.high = res.high;
+    this.unsigned = res.unsigned;
+  }
+
+  static TWO_PWR_24 = Long.fromInt(TWO_PWR_24_DBL);
+
+  /** Maximum unsigned value. */
+  static MAX_UNSIGNED_VALUE = Long.fromBits(0xffffffff | 0, 0xffffffff | 0, true);
+  /** Signed zero */
+  static ZERO = Long.fromInt(0);
+  /** Unsigned zero. */
+  static UZERO = Long.fromInt(0, true);
+  /** Signed one. */
+  static ONE = Long.fromInt(1);
+  /** Unsigned one. */
+  static UONE = Long.fromInt(1, true);
+  /** Signed negative one. */
+  static NEG_ONE = Long.fromInt(-1);
+  /** Maximum signed value. */
+  static MAX_VALUE = Long.fromBits(0xffffffff | 0, 0x7fffffff | 0, false);
+  /** Minimum signed value. */
+  static MIN_VALUE = Long.fromBits(0, 0x80000000 | 0, false);
+
+  /**
+   * Returns a Long representing the 64 bit integer that comes by concatenating the given low and high bits.
+   * Each is assumed to use 32 bits.
+   * @param lowBits - The low 32 bits
+   * @param highBits - The high 32 bits
+   * @param unsigned - Whether unsigned or not, defaults to signed
+   * @returns The corresponding Long value
+   */
+  static fromBits(lowBits: number, highBits: number, unsigned?: boolean): Long {
+    return new Long(lowBits, highBits, unsigned);
+  }
+
+  /**
+   * Returns a Long representing the given 32 bit integer value.
+   * @param value - The 32 bit integer in question
+   * @param unsigned - Whether unsigned or not, defaults to signed
+   * @returns The corresponding Long value
+   */
+  static fromInt(value: number, unsigned?: boolean): Long {
+    let obj, cachedObj, cache;
+    if (unsigned) {
+      value >>>= 0;
+      if ((cache = 0 <= value && value < 256)) {
+        cachedObj = UINT_CACHE[value];
+        if (cachedObj) return cachedObj;
+      }
+      obj = Long.fromBits(value, (value | 0) < 0 ? -1 : 0, true);
+      if (cache) UINT_CACHE[value] = obj;
+      return obj;
+    } else {
+      value |= 0;
+      if ((cache = -128 <= value && value < 128)) {
+        cachedObj = INT_CACHE[value];
+        if (cachedObj) return cachedObj;
+      }
+      obj = Long.fromBits(value, value < 0 ? -1 : 0, false);
+      if (cache) INT_CACHE[value] = obj;
+      return obj;
+    }
+  }
+
+  /**
+   * Returns a Long representing the given value, provided that it is a finite number. Otherwise, zero is returned.
+   * @param value - The number in question
+   * @param unsigned - Whether unsigned or not, defaults to signed
+   * @returns The corresponding Long value
+   */
+  static fromNumber(value: number, unsigned?: boolean): Long {
+    if (isNaN(value)) return unsigned ? Long.UZERO : Long.ZERO;
+    if (unsigned) {
+      if (value < 0) return Long.UZERO;
+      if (value >= TWO_PWR_64_DBL) return Long.MAX_UNSIGNED_VALUE;
+    } else {
+      if (value <= -TWO_PWR_63_DBL) return Long.MIN_VALUE;
+      if (value + 1 >= TWO_PWR_63_DBL) return Long.MAX_VALUE;
+    }
+    if (value < 0) return Long.fromNumber(-value, unsigned).neg();
+    return Long.fromBits(value % TWO_PWR_32_DBL | 0, (value / TWO_PWR_32_DBL) | 0, unsigned);
+  }
+
+  /**
+   * Returns a Long representing the given value, provided that it is a finite number. Otherwise, zero is returned.
+   * @param value - The number in question
+   * @param unsigned - Whether unsigned or not, defaults to signed
+   * @returns The corresponding Long value
+   */
+  static fromBigInt(value: bigint, unsigned?: boolean): Long {
+    // eslint-disable-next-line no-restricted-globals
+    const FROM_BIGINT_BIT_MASK = BigInt(0xffffffff);
+    // eslint-disable-next-line no-restricted-globals
+    const FROM_BIGINT_BIT_SHIFT = BigInt(32);
+    return new Long(
+      Number(value & FROM_BIGINT_BIT_MASK),
+      Number((value >> FROM_BIGINT_BIT_SHIFT) & FROM_BIGINT_BIT_MASK),
+      unsigned
+    );
+  }
+
+  /**
+   * @internal
+   * Returns a Long representation of the given string, written using the specified radix.
+   * Throws an error if `throwsError` is set to true and any of the following conditions are true:
+   *  - the string contains invalid characters for the given radix
+   *  - the string contains whitespace
+   * @param str - The textual representation of the Long
+   * @param unsigned - Whether unsigned or not, defaults to signed
+   * @param radix - The radix in which the text is written (2-36), defaults to 10
+   * @returns The corresponding Long value
+   */
+  private static _fromString(str: string, unsigned: boolean, radix: number): Long {
+    if (str.length === 0) throw new BSONError('empty string');
+    if (radix < 2 || 36 < radix) throw new BSONError('radix');
+
+    let p;
+    if ((p = str.indexOf('-')) > 0) throw new BSONError('interior hyphen');
+    else if (p === 0) {
+      return Long._fromString(str.substring(1), unsigned, radix).neg();
+    }
+
+    // Do several (8) digits each time through the loop, so as to
+    // minimize the calls to the very expensive emulated div.
+    const radixToPower = Long.fromNumber(Math.pow(radix, 8));
+
+    let result = Long.ZERO;
+    for (let i = 0; i < str.length; i += 8) {
+      const size = Math.min(8, str.length - i),
+        value = parseInt(str.substring(i, i + size), radix);
+      if (size < 8) {
+        const power = Long.fromNumber(Math.pow(radix, size));
+        result = result.mul(power).add(Long.fromNumber(value));
+      } else {
+        result = result.mul(radixToPower);
+        result = result.add(Long.fromNumber(value));
+      }
+    }
+    result.unsigned = unsigned;
+    return result;
+  }
+
+  /**
+   * Returns a signed Long representation of the given string, written using radix 10.
+   * Will throw an error if the given text is not exactly representable as a Long.
+   * Throws an error if any of the following conditions are true:
+   * - the string contains invalid characters for the radix 10
+   * - the string contains whitespace
+   * - the value the string represents is too large or too small to be a Long
+   * Unlike Long.fromString, this method does not coerce '+/-Infinity' and 'NaN' to Long.Zero
+   * @param str - The textual representation of the Long
+   * @returns The corresponding Long value
+   */
+  static fromStringStrict(str: string): Long;
+  /**
+   * Returns a Long representation of the given string, written using the radix 10.
+   * Will throw an error if the given parameters are not exactly representable as a Long.
+   * Throws an error if any of the following conditions are true:
+   * - the string contains invalid characters for the given radix
+   * - the string contains whitespace
+   * - the value the string represents is too large or too small to be a Long
+   * Unlike Long.fromString, this method does not coerce '+/-Infinity' and 'NaN' to Long.Zero
+   * @param str - The textual representation of the Long
+   * @param unsigned - Whether unsigned or not, defaults to signed
+   * @returns The corresponding Long value
+   */
+  static fromStringStrict(str: string, unsigned?: boolean): Long;
+  /**
+   * Returns a signed Long representation of the given string, written using the specified radix.
+   * Will throw an error if the given parameters are not exactly representable as a Long.
+   * Throws an error if any of the following conditions are true:
+   * - the string contains invalid characters for the given radix
+   * - the string contains whitespace
+   * - the value the string represents is too large or too small to be a Long
+   * Unlike Long.fromString, this method does not coerce '+/-Infinity' and 'NaN' to Long.Zero
+   * @param str - The textual representation of the Long
+   * @param radix - The radix in which the text is written (2-36), defaults to 10
+   * @returns The corresponding Long value
+   */
+  static fromStringStrict(str: string, radix?: boolean): Long;
+  /**
+   * Returns a Long representation of the given string, written using the specified radix.
+   * Will throw an error if the given parameters are not exactly representable as a Long.
+   * Throws an error if any of the following conditions are true:
+   * - the string contains invalid characters for the given radix
+   * - the string contains whitespace
+   * - the value the string represents is too large or too small to be a Long
+   * Unlike Long.fromString, this method does not coerce '+/-Infinity' and 'NaN' to Long.Zero
+   * @param str - The textual representation of the Long
+   * @param unsigned - Whether unsigned or not, defaults to signed
+   * @param radix - The radix in which the text is written (2-36), defaults to 10
+   * @returns The corresponding Long value
+   */
+  static fromStringStrict(str: string, unsigned?: boolean, radix?: number): Long;
+  static fromStringStrict(str: string, unsignedOrRadix?: boolean | number, radix?: number): Long {
+    let unsigned = false;
+    if (typeof unsignedOrRadix === 'number') {
+      // For goog.math.long compatibility
+      (radix = unsignedOrRadix), (unsignedOrRadix = false);
+    } else {
+      unsigned = !!unsignedOrRadix;
+    }
+    radix ??= 10;
+
+    if (str.trim() !== str) {
+      throw new BSONError(`Input: '${str}' contains leading and/or trailing whitespace`);
+    }
+    if (!StringUtils.validateStringCharacters(str, radix)) {
+      throw new BSONError(`Input: '${str}' contains invalid characters for radix: ${radix}`);
+    }
+
+    // remove leading zeros (for later string comparison and to make math faster)
+    const cleanedStr = StringUtils.removeLeadingZerosAndExplicitPlus(str);
+
+    // check roundtrip result
+    const result = Long._fromString(cleanedStr, unsigned, radix);
+    if (result.toString(radix).toLowerCase() !== cleanedStr.toLowerCase()) {
+      throw new BSONError(
+        `Input: ${str} is not representable as ${result.unsigned ? 'an unsigned' : 'a signed'} 64-bit Long ${radix != null ? `with radix: ${radix}` : ''}`
+      );
+    }
+    return result;
+  }
+
+  /**
+   * Returns a signed Long representation of the given string, written using radix 10.
+   *
+   * If the input string is empty, this function will throw a BSONError.
+   *
+   * If input string does not have valid signed 64-bit Long representation, this method will return a coerced value:
+   * - inputs that overflow 64-bit signed long will be coerced to Long.MAX_VALUE and Long.MIN_VALUE respectively
+   * - 'NaN' or '+/-Infinity' are coerced to Long.ZERO
+   * - other invalid characters sequences have variable behavior
+   *
+   * @param str - The textual representation of the Long
+   * @returns The corresponding Long value
+   */
+  static fromString(str: string): Long;
+  /**
+   * Returns a signed Long representation of the given string, written using the provided radix.
+   *
+   * If the input string is empty or a provided radix is not within (2-36), this function will throw a BSONError.
+   *
+   * If input parameters do not have valid signed 64-bit Long representation, this method will return a coerced value:
+   * - inputs that overflow 64-bit signed long will be coerced to Long.MAX_VALUE and Long.MIN_VALUE respectively
+   * - if the radix is less than 24, 'NaN' is coerced to Long.ZERO
+   * - if the radix is less than 35, '+/-Infinity' inputs are coerced to Long.ZERO
+   * - other invalid characters sequences have variable behavior
+   * @param str - The textual representation of the Long
+   * @param radix - The radix in which the text is written (2-36), defaults to 10
+   * @returns The corresponding Long value
+   */
+  static fromString(str: string, radix?: number): Long;
+  /**
+   * Returns a Long representation of the given string, written using radix 10.
+   *
+   * If the input string is empty, this function will throw a BSONError.
+   *
+   * If input parameters do not have a valid 64-bit Long representation, this method will return a coerced value:
+   * - inputs that overflow 64-bit long will be coerced to max or min (if signed) values
+   * - if the radix is less than 24, 'NaN' is coerced to Long.ZERO
+   * - if the radix is less than 35, '+/-Infinity' inputs are coerced to Long.ZERO
+   * - other invalid characters sequences have variable behavior
+   * @param str - The textual representation of the Long
+   * @param unsigned - Whether unsigned or not, defaults to signed
+   * @returns The corresponding Long value
+   */
+  static fromString(str: string, unsigned?: boolean): Long;
+  /**
+   * Returns a Long representation of the given string, written using the specified radix.
+   *
+   * If the input string is empty or a provided radix is not within (2-36), this function will throw a BSONError.
+   *
+   * If input parameters do not have a valid 64-bit Long representation, this method will return a coerced value:
+   * - inputs that overflow 64-bit long will be coerced to max or min (if signed) values
+   * - if the radix is less than 24, 'NaN' is coerced to Long.ZERO
+   * - if the radix is less than 35, '+/-Infinity' inputs are coerced to Long.ZERO
+   * - other invalid characters sequences have variable behavior
+   * @param str - The textual representation of the Long
+   * @param unsigned - Whether unsigned or not, defaults to signed
+   * @param radix - The radix in which the text is written (2-36), defaults to 10
+   * @returns The corresponding Long value
+   */
+  static fromString(str: string, unsigned?: boolean, radix?: number): Long;
+  static fromString(str: string, unsignedOrRadix?: boolean | number, radix?: number): Long {
+    let unsigned = false;
+    if (typeof unsignedOrRadix === 'number') {
+      // For goog.math.long compatibility
+      (radix = unsignedOrRadix), (unsignedOrRadix = false);
+    } else {
+      unsigned = !!unsignedOrRadix;
+    }
+    radix ??= 10;
+    if (str === 'NaN' && radix < 24) {
+      // radix does not support n, so coerce to zero
+      return Long.ZERO;
+    } else if ((str === 'Infinity' || str === '+Infinity' || str === '-Infinity') && radix < 35) {
+      // radix does not support y, so coerce to zero
+      return Long.ZERO;
+    }
+    return Long._fromString(str, unsigned, radix);
+  }
+
+  /**
+   * Creates a Long from its byte representation.
+   * @param bytes - Byte representation
+   * @param unsigned - Whether unsigned or not, defaults to signed
+   * @param le - Whether little or big endian, defaults to big endian
+   * @returns The corresponding Long value
+   */
+  static fromBytes(bytes: number[], unsigned?: boolean, le?: boolean): Long {
+    return le ? Long.fromBytesLE(bytes, unsigned) : Long.fromBytesBE(bytes, unsigned);
+  }
+
+  /**
+   * Creates a Long from its little endian byte representation.
+   * @param bytes - Little endian byte representation
+   * @param unsigned - Whether unsigned or not, defaults to signed
+   * @returns The corresponding Long value
+   */
+  static fromBytesLE(bytes: number[], unsigned?: boolean): Long {
+    return new Long(
+      bytes[0] | (bytes[1] << 8) | (bytes[2] << 16) | (bytes[3] << 24),
+      bytes[4] | (bytes[5] << 8) | (bytes[6] << 16) | (bytes[7] << 24),
+      unsigned
+    );
+  }
+
+  /**
+   * Creates a Long from its big endian byte representation.
+   * @param bytes - Big endian byte representation
+   * @param unsigned - Whether unsigned or not, defaults to signed
+   * @returns The corresponding Long value
+   */
+  static fromBytesBE(bytes: number[], unsigned?: boolean): Long {
+    return new Long(
+      (bytes[4] << 24) | (bytes[5] << 16) | (bytes[6] << 8) | bytes[7],
+      (bytes[0] << 24) | (bytes[1] << 16) | (bytes[2] << 8) | bytes[3],
+      unsigned
+    );
+  }
+
+  /**
+   * Tests if the specified object is a Long.
+   */
+  static isLong(value: unknown): value is Long {
+    return (
+      value != null &&
+      typeof value === 'object' &&
+      '__isLong__' in value &&
+      value.__isLong__ === true
+    );
+  }
+
+  /**
+   * Converts the specified value to a Long.
+   * @param unsigned - Whether unsigned or not, defaults to signed
+   */
+  static fromValue(
+    val: number | string | { low: number; high: number; unsigned?: boolean },
+    unsigned?: boolean
+  ): Long {
+    if (typeof val === 'number') return Long.fromNumber(val, unsigned);
+    if (typeof val === 'string') return Long.fromString(val, unsigned);
+    // Throws for non-objects, converts non-instanceof Long:
+    return Long.fromBits(
+      val.low,
+      val.high,
+      typeof unsigned === 'boolean' ? unsigned : val.unsigned
+    );
+  }
+
+  /** Returns the sum of this and the specified Long. */
+  add(addend: string | number | Long | Timestamp): Long {
+    if (!Long.isLong(addend)) addend = Long.fromValue(addend);
+
+    // Divide each number into 4 chunks of 16 bits, and then sum the chunks.
+
+    const a48 = this.high >>> 16;
+    const a32 = this.high & 0xffff;
+    const a16 = this.low >>> 16;
+    const a00 = this.low & 0xffff;
+
+    const b48 = addend.high >>> 16;
+    const b32 = addend.high & 0xffff;
+    const b16 = addend.low >>> 16;
+    const b00 = addend.low & 0xffff;
+
+    let c48 = 0,
+      c32 = 0,
+      c16 = 0,
+      c00 = 0;
+    c00 += a00 + b00;
+    c16 += c00 >>> 16;
+    c00 &= 0xffff;
+    c16 += a16 + b16;
+    c32 += c16 >>> 16;
+    c16 &= 0xffff;
+    c32 += a32 + b32;
+    c48 += c32 >>> 16;
+    c32 &= 0xffff;
+    c48 += a48 + b48;
+    c48 &= 0xffff;
+    return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned);
+  }
+
+  /**
+   * Returns the sum of this and the specified Long.
+   * @returns Sum
+   */
+  and(other: string | number | Long | Timestamp): Long {
+    if (!Long.isLong(other)) other = Long.fromValue(other);
+    return Long.fromBits(this.low & other.low, this.high & other.high, this.unsigned);
+  }
+
+  /**
+   * Compares this Long's value with the specified's.
+   * @returns 0 if they are the same, 1 if the this is greater and -1 if the given one is greater
+   */
+  compare(other: string | number | Long | Timestamp): 0 | 1 | -1 {
+    if (!Long.isLong(other)) other = Long.fromValue(other);
+    if (this.eq(other)) return 0;
+    const thisNeg = this.isNegative(),
+      otherNeg = other.isNegative();
+    if (thisNeg && !otherNeg) return -1;
+    if (!thisNeg && otherNeg) return 1;
+    // At this point the sign bits are the same
+    if (!this.unsigned) return this.sub(other).isNegative() ? -1 : 1;
+    // Both are positive if at least one is unsigned
+    return other.high >>> 0 > this.high >>> 0 ||
+      (other.high === this.high && other.low >>> 0 > this.low >>> 0)
+      ? -1
+      : 1;
+  }
+
+  /** This is an alias of {@link Long.compare} */
+  comp(other: string | number | Long | Timestamp): 0 | 1 | -1 {
+    return this.compare(other);
+  }
+
+  /**
+   * Returns this Long divided by the specified. The result is signed if this Long is signed or unsigned if this Long is unsigned.
+   * @returns Quotient
+   */
+  divide(divisor: string | number | Long | Timestamp): Long {
+    if (!Long.isLong(divisor)) divisor = Long.fromValue(divisor);
+    if (divisor.isZero()) throw new BSONError('division by zero');
+
+    // use wasm support if present
+    if (wasm) {
+      // guard against signed division overflow: the largest
+      // negative number / -1 would be 1 larger than the largest
+      // positive number, due to two's complement.
+      if (
+        !this.unsigned &&
+        this.high === -0x80000000 &&
+        divisor.low === -1 &&
+        divisor.high === -1
+      ) {
+        // be consistent with non-wasm code path
+        return this;
+      }
+      const low = (this.unsigned ? wasm.div_u : wasm.div_s)(
+        this.low,
+        this.high,
+        divisor.low,
+        divisor.high
+      );
+      return Long.fromBits(low, wasm.get_high(), this.unsigned);
+    }
+
+    if (this.isZero()) return this.unsigned ? Long.UZERO : Long.ZERO;
+    let approx, rem, res;
+    if (!this.unsigned) {
+      // This section is only relevant for signed longs and is derived from the
+      // closure library as a whole.
+      if (this.eq(Long.MIN_VALUE)) {
+        if (divisor.eq(Long.ONE) || divisor.eq(Long.NEG_ONE)) return Long.MIN_VALUE;
+        // recall that -MIN_VALUE == MIN_VALUE
+        else if (divisor.eq(Long.MIN_VALUE)) return Long.ONE;
+        else {
+          // At this point, we have |other| >= 2, so |this/other| < |MIN_VALUE|.
+          const halfThis = this.shr(1);
+          approx = halfThis.div(divisor).shl(1);
+          if (approx.eq(Long.ZERO)) {
+            return divisor.isNegative() ? Long.ONE : Long.NEG_ONE;
+          } else {
+            rem = this.sub(divisor.mul(approx));
+            res = approx.add(rem.div(divisor));
+            return res;
+          }
+        }
+      } else if (divisor.eq(Long.MIN_VALUE)) return this.unsigned ? Long.UZERO : Long.ZERO;
+      if (this.isNegative()) {
+        if (divisor.isNegative()) return this.neg().div(divisor.neg());
+        return this.neg().div(divisor).neg();
+      } else if (divisor.isNegative()) return this.div(divisor.neg()).neg();
+      res = Long.ZERO;
+    } else {
+      // The algorithm below has not been made for unsigned longs. It's therefore
+      // required to take special care of the MSB prior to running it.
+      if (!divisor.unsigned) divisor = divisor.toUnsigned();
+      if (divisor.gt(this)) return Long.UZERO;
+      if (divisor.gt(this.shru(1)))
+        // 15 >>> 1 = 7 ; with divisor = 8 ; true
+        return Long.UONE;
+      res = Long.UZERO;
+    }
+
+    // Repeat the following until the remainder is less than other:  find a
+    // floating-point that approximates remainder / other *from below*, add this
+    // into the result, and subtract it from the remainder.  It is critical that
+    // the approximate value is less than or equal to the real value so that the
+    // remainder never becomes negative.
+    // eslint-disable-next-line @typescript-eslint/no-this-alias
+    rem = this;
+    while (rem.gte(divisor)) {
+      // Approximate the result of division. This may be a little greater or
+      // smaller than the actual value.
+      approx = Math.max(1, Math.floor(rem.toNumber() / divisor.toNumber()));
+
+      // We will tweak the approximate result by changing it in the 48-th digit or
+      // the smallest non-fractional digit, whichever is larger.
+      const log2 = Math.ceil(Math.log(approx) / Math.LN2);
+      const delta = log2 <= 48 ? 1 : Math.pow(2, log2 - 48);
+      // Decrease the approximation until it is smaller than the remainder.  Note
+      // that if it is too large, the product overflows and is negative.
+      let approxRes = Long.fromNumber(approx);
+      let approxRem = approxRes.mul(divisor);
+      while (approxRem.isNegative() || approxRem.gt(rem)) {
+        approx -= delta;
+        approxRes = Long.fromNumber(approx, this.unsigned);
+        approxRem = approxRes.mul(divisor);
+      }
+
+      // We know the answer can't be zero... and actually, zero would cause
+      // infinite recursion since we would make no progress.
+      if (approxRes.isZero()) approxRes = Long.ONE;
+
+      res = res.add(approxRes);
+      rem = rem.sub(approxRem);
+    }
+    return res;
+  }
+
+  /**This is an alias of {@link Long.divide} */
+  div(divisor: string | number | Long | Timestamp): Long {
+    return this.divide(divisor);
+  }
+
+  /**
+   * Tests if this Long's value equals the specified's.
+   * @param other - Other value
+   */
+  equals(other: string | number | Long | Timestamp): boolean {
+    if (!Long.isLong(other)) other = Long.fromValue(other);
+    if (this.unsigned !== other.unsigned && this.high >>> 31 === 1 && other.high >>> 31 === 1)
+      return false;
+    return this.high === other.high && this.low === other.low;
+  }
+
+  /** This is an alias of {@link Long.equals} */
+  eq(other: string | number | Long | Timestamp): boolean {
+    return this.equals(other);
+  }
+
+  /** Gets the high 32 bits as a signed integer. */
+  getHighBits(): number {
+    return this.high;
+  }
+
+  /** Gets the high 32 bits as an unsigned integer. */
+  getHighBitsUnsigned(): number {
+    return this.high >>> 0;
+  }
+
+  /** Gets the low 32 bits as a signed integer. */
+  getLowBits(): number {
+    return this.low;
+  }
+
+  /** Gets the low 32 bits as an unsigned integer. */
+  getLowBitsUnsigned(): number {
+    return this.low >>> 0;
+  }
+
+  /** Gets the number of bits needed to represent the absolute value of this Long. */
+  getNumBitsAbs(): number {
+    if (this.isNegative()) {
+      // Unsigned Longs are never negative
+      return this.eq(Long.MIN_VALUE) ? 64 : this.neg().getNumBitsAbs();
+    }
+    const val = this.high !== 0 ? this.high : this.low;
+    let bit: number;
+    for (bit = 31; bit > 0; bit--) if ((val & (1 << bit)) !== 0) break;
+    return this.high !== 0 ? bit + 33 : bit + 1;
+  }
+
+  /** Tests if this Long's value is greater than the specified's. */
+  greaterThan(other: string | number | Long | Timestamp): boolean {
+    return this.comp(other) > 0;
+  }
+
+  /** This is an alias of {@link Long.greaterThan} */
+  gt(other: string | number | Long | Timestamp): boolean {
+    return this.greaterThan(other);
+  }
+
+  /** Tests if this Long's value is greater than or equal the specified's. */
+  greaterThanOrEqual(other: string | number | Long | Timestamp): boolean {
+    return this.comp(other) >= 0;
+  }
+
+  /** This is an alias of {@link Long.greaterThanOrEqual} */
+  gte(other: string | number | Long | Timestamp): boolean {
+    return this.greaterThanOrEqual(other);
+  }
+  /** This is an alias of {@link Long.greaterThanOrEqual} */
+  ge(other: string | number | Long | Timestamp): boolean {
+    return this.greaterThanOrEqual(other);
+  }
+
+  /** Tests if this Long's value is even. */
+  isEven(): boolean {
+    return (this.low & 1) === 0;
+  }
+
+  /** Tests if this Long's value is negative. */
+  isNegative(): boolean {
+    return !this.unsigned && this.high < 0;
+  }
+
+  /** Tests if this Long's value is odd. */
+  isOdd(): boolean {
+    return (this.low & 1) === 1;
+  }
+
+  /** Tests if this Long's value is positive. */
+  isPositive(): boolean {
+    return this.unsigned || this.high >= 0;
+  }
+
+  /** Tests if this Long's value equals zero. */
+  isZero(): boolean {
+    return this.high === 0 && this.low === 0;
+  }
+
+  /** Tests if this Long's value is less than the specified's. */
+  lessThan(other: string | number | Long | Timestamp): boolean {
+    return this.comp(other) < 0;
+  }
+
+  /** This is an alias of {@link Long#lessThan}. */
+  lt(other: string | number | Long | Timestamp): boolean {
+    return this.lessThan(other);
+  }
+
+  /** Tests if this Long's value is less than or equal the specified's. */
+  lessThanOrEqual(other: string | number | Long | Timestamp): boolean {
+    return this.comp(other) <= 0;
+  }
+
+  /** This is an alias of {@link Long.lessThanOrEqual} */
+  lte(other: string | number | Long | Timestamp): boolean {
+    return this.lessThanOrEqual(other);
+  }
+
+  /** Returns this Long modulo the specified. */
+  modulo(divisor: string | number | Long | Timestamp): Long {
+    if (!Long.isLong(divisor)) divisor = Long.fromValue(divisor);
+
+    // use wasm support if present
+    if (wasm) {
+      const low = (this.unsigned ? wasm.rem_u : wasm.rem_s)(
+        this.low,
+        this.high,
+        divisor.low,
+        divisor.high
+      );
+      return Long.fromBits(low, wasm.get_high(), this.unsigned);
+    }
+
+    return this.sub(this.div(divisor).mul(divisor));
+  }
+
+  /** This is an alias of {@link Long.modulo} */
+  mod(divisor: string | number | Long | Timestamp): Long {
+    return this.modulo(divisor);
+  }
+  /** This is an alias of {@link Long.modulo} */
+  rem(divisor: string | number | Long | Timestamp): Long {
+    return this.modulo(divisor);
+  }
+
+  /**
+   * Returns the product of this and the specified Long.
+   * @param multiplier - Multiplier
+   * @returns Product
+   */
+  multiply(multiplier: string | number | Long | Timestamp): Long {
+    if (this.isZero()) return Long.ZERO;
+    if (!Long.isLong(multiplier)) multiplier = Long.fromValue(multiplier);
+
+    // use wasm support if present
+    if (wasm) {
+      const low = wasm.mul(this.low, this.high, multiplier.low, multiplier.high);
+      return Long.fromBits(low, wasm.get_high(), this.unsigned);
+    }
+
+    if (multiplier.isZero()) return Long.ZERO;
+    if (this.eq(Long.MIN_VALUE)) return multiplier.isOdd() ? Long.MIN_VALUE : Long.ZERO;
+    if (multiplier.eq(Long.MIN_VALUE)) return this.isOdd() ? Long.MIN_VALUE : Long.ZERO;
+
+    if (this.isNegative()) {
+      if (multiplier.isNegative()) return this.neg().mul(multiplier.neg());
+      else return this.neg().mul(multiplier).neg();
+    } else if (multiplier.isNegative()) return this.mul(multiplier.neg()).neg();
+
+    // If both longs are small, use float multiplication
+    if (this.lt(Long.TWO_PWR_24) && multiplier.lt(Long.TWO_PWR_24))
+      return Long.fromNumber(this.toNumber() * multiplier.toNumber(), this.unsigned);
+
+    // Divide each long into 4 chunks of 16 bits, and then add up 4x4 products.
+    // We can skip products that would overflow.
+
+    const a48 = this.high >>> 16;
+    const a32 = this.high & 0xffff;
+    const a16 = this.low >>> 16;
+    const a00 = this.low & 0xffff;
+
+    const b48 = multiplier.high >>> 16;
+    const b32 = multiplier.high & 0xffff;
+    const b16 = multiplier.low >>> 16;
+    const b00 = multiplier.low & 0xffff;
+
+    let c48 = 0,
+      c32 = 0,
+      c16 = 0,
+      c00 = 0;
+    c00 += a00 * b00;
+    c16 += c00 >>> 16;
+    c00 &= 0xffff;
+    c16 += a16 * b00;
+    c32 += c16 >>> 16;
+    c16 &= 0xffff;
+    c16 += a00 * b16;
+    c32 += c16 >>> 16;
+    c16 &= 0xffff;
+    c32 += a32 * b00;
+    c48 += c32 >>> 16;
+    c32 &= 0xffff;
+    c32 += a16 * b16;
+    c48 += c32 >>> 16;
+    c32 &= 0xffff;
+    c32 += a00 * b32;
+    c48 += c32 >>> 16;
+    c32 &= 0xffff;
+    c48 += a48 * b00 + a32 * b16 + a16 * b32 + a00 * b48;
+    c48 &= 0xffff;
+    return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned);
+  }
+
+  /** This is an alias of {@link Long.multiply} */
+  mul(multiplier: string | number | Long | Timestamp): Long {
+    return this.multiply(multiplier);
+  }
+
+  /** Returns the Negation of this Long's value. */
+  negate(): Long {
+    if (!this.unsigned && this.eq(Long.MIN_VALUE)) return Long.MIN_VALUE;
+    return this.not().add(Long.ONE);
+  }
+
+  /** This is an alias of {@link Long.negate} */
+  neg(): Long {
+    return this.negate();
+  }
+
+  /** Returns the bitwise NOT of this Long. */
+  not(): Long {
+    return Long.fromBits(~this.low, ~this.high, this.unsigned);
+  }
+
+  /** Tests if this Long's value differs from the specified's. */
+  notEquals(other: string | number | Long | Timestamp): boolean {
+    return !this.equals(other);
+  }
+
+  /** This is an alias of {@link Long.notEquals} */
+  neq(other: string | number | Long | Timestamp): boolean {
+    return this.notEquals(other);
+  }
+  /** This is an alias of {@link Long.notEquals} */
+  ne(other: string | number | Long | Timestamp): boolean {
+    return this.notEquals(other);
+  }
+
+  /**
+   * Returns the bitwise OR of this Long and the specified.
+   */
+  or(other: number | string | Long): Long {
+    if (!Long.isLong(other)) other = Long.fromValue(other);
+    return Long.fromBits(this.low | other.low, this.high | other.high, this.unsigned);
+  }
+
+  /**
+   * Returns this Long with bits shifted to the left by the given amount.
+   * @param numBits - Number of bits
+   * @returns Shifted Long
+   */
+  shiftLeft(numBits: number | Long): Long {
+    if (Long.isLong(numBits)) numBits = numBits.toInt();
+    if ((numBits &= 63) === 0) return this;
+    else if (numBits < 32)
+      return Long.fromBits(
+        this.low << numBits,
+        (this.high << numBits) | (this.low >>> (32 - numBits)),
+        this.unsigned
+      );
+    else return Long.fromBits(0, this.low << (numBits - 32), this.unsigned);
+  }
+
+  /** This is an alias of {@link Long.shiftLeft} */
+  shl(numBits: number | Long): Long {
+    return this.shiftLeft(numBits);
+  }
+
+  /**
+   * Returns this Long with bits arithmetically shifted to the right by the given amount.
+   * @param numBits - Number of bits
+   * @returns Shifted Long
+   */
+  shiftRight(numBits: number | Long): Long {
+    if (Long.isLong(numBits)) numBits = numBits.toInt();
+    if ((numBits &= 63) === 0) return this;
+    else if (numBits < 32)
+      return Long.fromBits(
+        (this.low >>> numBits) | (this.high << (32 - numBits)),
+        this.high >> numBits,
+        this.unsigned
+      );
+    else return Long.fromBits(this.high >> (numBits - 32), this.high >= 0 ? 0 : -1, this.unsigned);
+  }
+
+  /** This is an alias of {@link Long.shiftRight} */
+  shr(numBits: number | Long): Long {
+    return this.shiftRight(numBits);
+  }
+
+  /**
+   * Returns this Long with bits logically shifted to the right by the given amount.
+   * @param numBits - Number of bits
+   * @returns Shifted Long
+   */
+  shiftRightUnsigned(numBits: Long | number): Long {
+    if (Long.isLong(numBits)) numBits = numBits.toInt();
+    numBits &= 63;
+    if (numBits === 0) return this;
+    else {
+      const high = this.high;
+      if (numBits < 32) {
+        const low = this.low;
+        return Long.fromBits(
+          (low >>> numBits) | (high << (32 - numBits)),
+          high >>> numBits,
+          this.unsigned
+        );
+      } else if (numBits === 32) return Long.fromBits(high, 0, this.unsigned);
+      else return Long.fromBits(high >>> (numBits - 32), 0, this.unsigned);
+    }
+  }
+
+  /** This is an alias of {@link Long.shiftRightUnsigned} */
+  shr_u(numBits: number | Long): Long {
+    return this.shiftRightUnsigned(numBits);
+  }
+  /** This is an alias of {@link Long.shiftRightUnsigned} */
+  shru(numBits: number | Long): Long {
+    return this.shiftRightUnsigned(numBits);
+  }
+
+  /**
+   * Returns the difference of this and the specified Long.
+   * @param subtrahend - Subtrahend
+   * @returns Difference
+   */
+  subtract(subtrahend: string | number | Long | Timestamp): Long {
+    if (!Long.isLong(subtrahend)) subtrahend = Long.fromValue(subtrahend);
+    return this.add(subtrahend.neg());
+  }
+
+  /** This is an alias of {@link Long.subtract} */
+  sub(subtrahend: string | number | Long | Timestamp): Long {
+    return this.subtract(subtrahend);
+  }
+
+  /** Converts the Long to a 32 bit integer, assuming it is a 32 bit integer. */
+  toInt(): number {
+    return this.unsigned ? this.low >>> 0 : this.low;
+  }
+
+  /** Converts the Long to a the nearest floating-point representation of this value (double, 53 bit mantissa). */
+  toNumber(): number {
+    if (this.unsigned) return (this.high >>> 0) * TWO_PWR_32_DBL + (this.low >>> 0);
+    return this.high * TWO_PWR_32_DBL + (this.low >>> 0);
+  }
+
+  /** Converts the Long to a BigInt (arbitrary precision). */
+  toBigInt(): bigint {
+    // eslint-disable-next-line no-restricted-globals -- This is allowed here as it is explicitly requesting a bigint
+    return BigInt(this.toString());
+  }
+
+  /**
+   * Converts this Long to its byte representation.
+   * @param le - Whether little or big endian, defaults to big endian
+   * @returns Byte representation
+   */
+  toBytes(le?: boolean): number[] {
+    return le ? this.toBytesLE() : this.toBytesBE();
+  }
+
+  /**
+   * Converts this Long to its little endian byte representation.
+   * @returns Little endian byte representation
+   */
+  toBytesLE(): number[] {
+    const hi = this.high,
+      lo = this.low;
+    return [
+      lo & 0xff,
+      (lo >>> 8) & 0xff,
+      (lo >>> 16) & 0xff,
+      lo >>> 24,
+      hi & 0xff,
+      (hi >>> 8) & 0xff,
+      (hi >>> 16) & 0xff,
+      hi >>> 24
+    ];
+  }
+
+  /**
+   * Converts this Long to its big endian byte representation.
+   * @returns Big endian byte representation
+   */
+  toBytesBE(): number[] {
+    const hi = this.high,
+      lo = this.low;
+    return [
+      hi >>> 24,
+      (hi >>> 16) & 0xff,
+      (hi >>> 8) & 0xff,
+      hi & 0xff,
+      lo >>> 24,
+      (lo >>> 16) & 0xff,
+      (lo >>> 8) & 0xff,
+      lo & 0xff
+    ];
+  }
+
+  /**
+   * Converts this Long to signed.
+   */
+  toSigned(): Long {
+    if (!this.unsigned) return this;
+    return Long.fromBits(this.low, this.high, false);
+  }
+
+  /**
+   * Converts the Long to a string written in the specified radix.
+   * @param radix - Radix (2-36), defaults to 10
+   * @throws RangeError If `radix` is out of range
+   */
+  toString(radix?: number): string {
+    radix = radix || 10;
+    if (radix < 2 || 36 < radix) throw new BSONError('radix');
+    if (this.isZero()) return '0';
+    if (this.isNegative()) {
+      // Unsigned Longs are never negative
+      if (this.eq(Long.MIN_VALUE)) {
+        // We need to change the Long value before it can be negated, so we remove
+        // the bottom-most digit in this base and then recurse to do the rest.
+        const radixLong = Long.fromNumber(radix),
+          div = this.div(radixLong),
+          rem1 = div.mul(radixLong).sub(this);
+        return div.toString(radix) + rem1.toInt().toString(radix);
+      } else return '-' + this.neg().toString(radix);
+    }
+
+    // Do several (6) digits each time through the loop, so as to
+    // minimize the calls to the very expensive emulated div.
+    const radixToPower = Long.fromNumber(Math.pow(radix, 6), this.unsigned);
+    // eslint-disable-next-line @typescript-eslint/no-this-alias
+    let rem: Long = this;
+    let result = '';
+    while (true) {
+      const remDiv = rem.div(radixToPower);
+      const intval = rem.sub(remDiv.mul(radixToPower)).toInt() >>> 0;
+      let digits = intval.toString(radix);
+      rem = remDiv;
+      if (rem.isZero()) {
+        return digits + result;
+      } else {
+        while (digits.length < 6) digits = '0' + digits;
+        result = '' + digits + result;
+      }
+    }
+  }
+
+  /** Converts this Long to unsigned. */
+  toUnsigned(): Long {
+    if (this.unsigned) return this;
+    return Long.fromBits(this.low, this.high, true);
+  }
+
+  /** Returns the bitwise XOR of this Long and the given one. */
+  xor(other: Long | number | string): Long {
+    if (!Long.isLong(other)) other = Long.fromValue(other);
+    return Long.fromBits(this.low ^ other.low, this.high ^ other.high, this.unsigned);
+  }
+
+  /** This is an alias of {@link Long.isZero} */
+  eqz(): boolean {
+    return this.isZero();
+  }
+
+  /** This is an alias of {@link Long.lessThanOrEqual} */
+  le(other: string | number | Long | Timestamp): boolean {
+    return this.lessThanOrEqual(other);
+  }
+
+  /*
+   ****************************************************************
+   *                  BSON SPECIFIC ADDITIONS                     *
+   ****************************************************************
+   */
+  toExtendedJSON(options?: EJSONOptions): number | LongExtended {
+    if (options && options.relaxed) return this.toNumber();
+    return { $numberLong: this.toString() };
+  }
+  static fromExtendedJSON(
+    doc: { $numberLong: string },
+    options?: EJSONOptions
+  ): number | Long | bigint {
+    const { useBigInt64 = false, relaxed = true } = { ...options };
+
+    if (doc.$numberLong.length > MAX_INT64_STRING_LENGTH) {
+      throw new BSONError('$numberLong string is too long');
+    }
+
+    if (!DECIMAL_REG_EX.test(doc.$numberLong)) {
+      throw new BSONError(`$numberLong string "${doc.$numberLong}" is in an invalid format`);
+    }
+
+    if (useBigInt64) {
+      /* eslint-disable no-restricted-globals -- Can use BigInt here as useBigInt64=true */
+      const bigIntResult = BigInt(doc.$numberLong);
+      return BigInt.asIntN(64, bigIntResult);
+      /* eslint-enable */
+    }
+
+    const longResult = Long.fromString(doc.$numberLong);
+    if (relaxed) {
+      return longResult.toNumber();
+    }
+    return longResult;
+  }
+
+  inspect(depth?: number, options?: unknown, inspect?: InspectFn): string {
+    inspect ??= defaultInspect;
+    const longVal = inspect(this.toString(), options);
+    const unsignedVal = this.unsigned ? `, ${inspect(this.unsigned, options)}` : '';
+    return `new Long(${longVal}${unsignedVal})`;
+  }
+}
diff --git a/backend/node_modules/bson/src/max_key.ts b/backend/node_modules/bson/src/max_key.ts
new file mode 100644
index 0000000..903f1d1
--- /dev/null
+++ b/backend/node_modules/bson/src/max_key.ts
@@ -0,0 +1,31 @@
+import { BSONValue } from './bson_value';
+
+/** @public */
+export interface MaxKeyExtended {
+  $maxKey: 1;
+}
+
+/**
+ * A class representation of the BSON MaxKey type.
+ * @public
+ * @category BSONType
+ */
+export class MaxKey extends BSONValue {
+  get _bsontype(): 'MaxKey' {
+    return 'MaxKey';
+  }
+
+  /** @internal */
+  toExtendedJSON(): MaxKeyExtended {
+    return { $maxKey: 1 };
+  }
+
+  /** @internal */
+  static fromExtendedJSON(): MaxKey {
+    return new MaxKey();
+  }
+
+  inspect(): string {
+    return 'new MaxKey()';
+  }
+}
diff --git a/backend/node_modules/bson/src/min_key.ts b/backend/node_modules/bson/src/min_key.ts
new file mode 100644
index 0000000..244e645
--- /dev/null
+++ b/backend/node_modules/bson/src/min_key.ts
@@ -0,0 +1,31 @@
+import { BSONValue } from './bson_value';
+
+/** @public */
+export interface MinKeyExtended {
+  $minKey: 1;
+}
+
+/**
+ * A class representation of the BSON MinKey type.
+ * @public
+ * @category BSONType
+ */
+export class MinKey extends BSONValue {
+  get _bsontype(): 'MinKey' {
+    return 'MinKey';
+  }
+
+  /** @internal */
+  toExtendedJSON(): MinKeyExtended {
+    return { $minKey: 1 };
+  }
+
+  /** @internal */
+  static fromExtendedJSON(): MinKey {
+    return new MinKey();
+  }
+
+  inspect(): string {
+    return 'new MinKey()';
+  }
+}
diff --git a/backend/node_modules/bson/src/objectid.ts b/backend/node_modules/bson/src/objectid.ts
new file mode 100644
index 0000000..a9abde9
--- /dev/null
+++ b/backend/node_modules/bson/src/objectid.ts
@@ -0,0 +1,389 @@
+import { BSONValue } from './bson_value';
+import { BSONError } from './error';
+import { type InspectFn, defaultInspect } from './parser/utils';
+import { ByteUtils } from './utils/byte_utils';
+import { NumberUtils } from './utils/number_utils';
+
+// Unique sequence for the current process (initialized on first use)
+let PROCESS_UNIQUE: Uint8Array | null = null;
+
+/** ObjectId hexString cache @internal */
+const __idCache = new WeakMap(); // TODO(NODE-6549): convert this to #__id private field when target updated to ES2022
+
+/** @public */
+export interface ObjectIdLike {
+  id: string | Uint8Array;
+  __id?: string;
+  toHexString(): string;
+}
+
+/** @public */
+export interface ObjectIdExtended {
+  $oid: string;
+}
+
+/**
+ * A class representation of the BSON ObjectId type.
+ * @public
+ * @category BSONType
+ */
+export class ObjectId extends BSONValue {
+  get _bsontype(): 'ObjectId' {
+    return 'ObjectId';
+  }
+
+  /** @internal */
+  private static index = Math.floor(Math.random() * 0xffffff);
+
+  static cacheHexString: boolean;
+
+  /** ObjectId Bytes @internal */
+  private buffer!: Uint8Array;
+
+  /**
+   * Create ObjectId from a number.
+   *
+   * @param inputId - A number.
+   * @deprecated Instead, use `static createFromTime()` to set a numeric value for the new ObjectId.
+   */
+  constructor(inputId: number);
+  /**
+   * Create ObjectId from a 24 character hex string.
+   *
+   * @param inputId - A 24 character hex string.
+   */
+  constructor(inputId: string);
+  /**
+   * Create ObjectId from the BSON ObjectId type.
+   *
+   * @param inputId - The BSON ObjectId type.
+   */
+  constructor(inputId: ObjectId);
+  /**
+   * Create ObjectId from the object type that has the toHexString method.
+   *
+   * @param inputId - The ObjectIdLike type.
+   */
+  constructor(inputId: ObjectIdLike);
+  /**
+   * Create ObjectId from a 12 byte binary Buffer.
+   *
+   * @param inputId - A 12 byte binary Buffer.
+   */
+  constructor(inputId: Uint8Array);
+  /** To generate a new ObjectId, use ObjectId() with no argument. */
+  constructor();
+  /**
+   * Implementation overload.
+   *
+   * @param inputId - All input types that are used in the constructor implementation.
+   */
+  constructor(inputId?: string | number | ObjectId | ObjectIdLike | Uint8Array);
+  /**
+   * Create a new ObjectId.
+   *
+   * @param inputId - An input value to create a new ObjectId from.
+   */
+  constructor(inputId?: string | number | ObjectId | ObjectIdLike | Uint8Array) {
+    super();
+    // workingId is set based on type of input and whether valid id exists for the input
+    let workingId;
+    if (typeof inputId === 'object' && inputId && 'id' in inputId) {
+      if (typeof inputId.id !== 'string' && !ArrayBuffer.isView(inputId.id)) {
+        throw new BSONError('Argument passed in must have an id that is of type string or Buffer');
+      }
+      if ('toHexString' in inputId && typeof inputId.toHexString === 'function') {
+        workingId = ByteUtils.fromHex(inputId.toHexString());
+      } else {
+        workingId = inputId.id;
+      }
+    } else {
+      workingId = inputId;
+    }
+
+    // The following cases use workingId to construct an ObjectId
+    if (workingId == null || typeof workingId === 'number') {
+      // The most common use case (blank id, new objectId instance)
+      // Generate a new id
+      this.buffer = ObjectId.generate(typeof workingId === 'number' ? workingId : undefined);
+    } else if (ArrayBuffer.isView(workingId) && workingId.byteLength === 12) {
+      // If intstanceof matches we can escape calling ensure buffer in Node.js environments
+      this.buffer = ByteUtils.toLocalBufferType(workingId);
+    } else if (typeof workingId === 'string') {
+      if (ObjectId.validateHexString(workingId)) {
+        this.buffer = ByteUtils.fromHex(workingId);
+        // If we are caching the hex string
+        if (ObjectId.cacheHexString) {
+          __idCache.set(this, workingId);
+        }
+      } else {
+        throw new BSONError(
+          'input must be a 24 character hex string, 12 byte Uint8Array, or an integer'
+        );
+      }
+    } else {
+      throw new BSONError('Argument passed in does not match the accepted types');
+    }
+  }
+
+  /**
+   * The ObjectId bytes
+   * @readonly
+   */
+  get id(): Uint8Array {
+    return this.buffer;
+  }
+
+  set id(value: Uint8Array) {
+    this.buffer = value;
+    if (ObjectId.cacheHexString) {
+      __idCache.set(this, ByteUtils.toHex(value));
+    }
+  }
+
+  /**
+   * @internal
+   * Validates the input string is a valid hex representation of an ObjectId.
+   */
+  private static validateHexString(string: string): boolean {
+    if (string?.length !== 24) return false;
+    for (let i = 0; i < 24; i++) {
+      const char = string.charCodeAt(i);
+      if (
+        // Check for ASCII 0-9
+        (char >= 48 && char <= 57) ||
+        // Check for ASCII a-f
+        (char >= 97 && char <= 102) ||
+        // Check for ASCII A-F
+        (char >= 65 && char <= 70)
+      ) {
+        continue;
+      }
+      return false;
+    }
+    return true;
+  }
+
+  /** Returns the ObjectId id as a 24 lowercase character hex string representation */
+  toHexString(): string {
+    if (ObjectId.cacheHexString) {
+      const __id = __idCache.get(this);
+      if (__id) return __id;
+    }
+
+    const hexString = ByteUtils.toHex(this.id);
+
+    if (ObjectId.cacheHexString) {
+      __idCache.set(this, hexString);
+    }
+
+    return hexString;
+  }
+
+  /**
+   * Update the ObjectId index
+   * @internal
+   */
+  private static getInc(): number {
+    return (ObjectId.index = (ObjectId.index + 1) % 0xffffff);
+  }
+
+  /**
+   * Generate a 12 byte id buffer used in ObjectId's
+   *
+   * @param time - pass in a second based timestamp.
+   */
+  static generate(time?: number): Uint8Array {
+    if ('number' !== typeof time) {
+      time = Math.floor(Date.now() / 1000);
+    }
+
+    const inc = ObjectId.getInc();
+    const buffer = ByteUtils.allocateUnsafe(12);
+
+    // 4-byte timestamp
+    NumberUtils.setInt32BE(buffer, 0, time);
+
+    // set PROCESS_UNIQUE if yet not initialized
+    if (PROCESS_UNIQUE === null) {
+      PROCESS_UNIQUE = ByteUtils.randomBytes(5);
+    }
+
+    // 5-byte process unique
+    buffer[4] = PROCESS_UNIQUE[0];
+    buffer[5] = PROCESS_UNIQUE[1];
+    buffer[6] = PROCESS_UNIQUE[2];
+    buffer[7] = PROCESS_UNIQUE[3];
+    buffer[8] = PROCESS_UNIQUE[4];
+
+    // 3-byte counter
+    buffer[11] = inc & 0xff;
+    buffer[10] = (inc >> 8) & 0xff;
+    buffer[9] = (inc >> 16) & 0xff;
+
+    return buffer;
+  }
+
+  /**
+   * Converts the id into a 24 character hex string for printing, unless encoding is provided.
+   * @param encoding - hex or base64
+   */
+  toString(encoding?: 'hex' | 'base64'): string {
+    // Is the id a buffer then use the buffer toString method to return the format
+    if (encoding === 'base64') return ByteUtils.toBase64(this.id);
+    if (encoding === 'hex') return this.toHexString();
+    return this.toHexString();
+  }
+
+  /** Converts to its JSON the 24 character hex string representation. */
+  toJSON(): string {
+    return this.toHexString();
+  }
+
+  /** @internal */
+  private static is(variable: unknown): variable is ObjectId {
+    return (
+      variable != null &&
+      typeof variable === 'object' &&
+      '_bsontype' in variable &&
+      variable._bsontype === 'ObjectId'
+    );
+  }
+
+  /**
+   * Compares the equality of this ObjectId with `otherID`.
+   *
+   * @param otherId - ObjectId instance to compare against.
+   */
+  equals(otherId: string | ObjectId | ObjectIdLike | undefined | null): boolean {
+    if (otherId === undefined || otherId === null) {
+      return false;
+    }
+
+    if (ObjectId.is(otherId)) {
+      return (
+        this.buffer[11] === otherId.buffer[11] && ByteUtils.equals(this.buffer, otherId.buffer)
+      );
+    }
+
+    if (typeof otherId === 'string') {
+      return otherId.toLowerCase() === this.toHexString();
+    }
+
+    if (typeof otherId === 'object' && typeof otherId.toHexString === 'function') {
+      const otherIdString = otherId.toHexString();
+      const thisIdString = this.toHexString();
+      return typeof otherIdString === 'string' && otherIdString.toLowerCase() === thisIdString;
+    }
+
+    return false;
+  }
+
+  /** Returns the generation date (accurate up to the second) that this ID was generated. */
+  getTimestamp(): Date {
+    const timestamp = new Date();
+    const time = NumberUtils.getUint32BE(this.buffer, 0);
+    timestamp.setTime(Math.floor(time) * 1000);
+    return timestamp;
+  }
+
+  /** @internal */
+  static createPk(): ObjectId {
+    return new ObjectId();
+  }
+
+  /** @internal */
+  serializeInto(uint8array: Uint8Array, index: number): 12 {
+    uint8array[index] = this.buffer[0];
+    uint8array[index + 1] = this.buffer[1];
+    uint8array[index + 2] = this.buffer[2];
+    uint8array[index + 3] = this.buffer[3];
+    uint8array[index + 4] = this.buffer[4];
+    uint8array[index + 5] = this.buffer[5];
+    uint8array[index + 6] = this.buffer[6];
+    uint8array[index + 7] = this.buffer[7];
+    uint8array[index + 8] = this.buffer[8];
+    uint8array[index + 9] = this.buffer[9];
+    uint8array[index + 10] = this.buffer[10];
+    uint8array[index + 11] = this.buffer[11];
+    return 12;
+  }
+
+  /**
+   * Creates an ObjectId from a second based number, with the rest of the ObjectId zeroed out. Used for comparisons or sorting the ObjectId.
+   *
+   * @param time - an integer number representing a number of seconds.
+   */
+  static createFromTime(time: number): ObjectId {
+    const buffer = ByteUtils.allocate(12);
+    for (let i = 11; i >= 4; i--) buffer[i] = 0;
+    // Encode time into first 4 bytes
+    NumberUtils.setInt32BE(buffer, 0, time);
+    // Return the new objectId
+    return new ObjectId(buffer);
+  }
+
+  /**
+   * Creates an ObjectId from a hex string representation of an ObjectId.
+   *
+   * @param hexString - create a ObjectId from a passed in 24 character hexstring.
+   */
+  static createFromHexString(hexString: string): ObjectId {
+    if (hexString?.length !== 24) {
+      throw new BSONError('hex string must be 24 characters');
+    }
+
+    return new ObjectId(ByteUtils.fromHex(hexString));
+  }
+
+  /** Creates an ObjectId instance from a base64 string */
+  static createFromBase64(base64: string): ObjectId {
+    if (base64?.length !== 16) {
+      throw new BSONError('base64 string must be 16 characters');
+    }
+
+    return new ObjectId(ByteUtils.fromBase64(base64));
+  }
+
+  /**
+   * Checks if a value can be used to create a valid bson ObjectId
+   * @param id - any JS value
+   */
+  static isValid(id: string | number | ObjectId | ObjectIdLike | Uint8Array): boolean {
+    if (id == null) return false;
+    if (typeof id === 'string') return ObjectId.validateHexString(id);
+
+    try {
+      new ObjectId(id);
+      return true;
+    } catch {
+      return false;
+    }
+  }
+
+  /** @internal */
+  toExtendedJSON(): ObjectIdExtended {
+    if (this.toHexString) return { $oid: this.toHexString() };
+    return { $oid: this.toString('hex') };
+  }
+
+  /** @internal */
+  static fromExtendedJSON(doc: ObjectIdExtended): ObjectId {
+    return new ObjectId(doc.$oid);
+  }
+
+  /** @internal */
+  private isCached(): boolean {
+    return ObjectId.cacheHexString && __idCache.has(this);
+  }
+
+  /**
+   * Converts to a string representation of this Id.
+   *
+   * @returns return the 24 character hex string representation.
+   */
+  inspect(depth?: number, options?: unknown, inspect?: InspectFn): string {
+    inspect ??= defaultInspect;
+    return `new ObjectId(${inspect(this.toHexString(), options)})`;
+  }
+}
diff --git a/backend/node_modules/bson/src/parse_utf8.ts b/backend/node_modules/bson/src/parse_utf8.ts
new file mode 100644
index 0000000..045a908
--- /dev/null
+++ b/backend/node_modules/bson/src/parse_utf8.ts
@@ -0,0 +1,35 @@
+import { BSONError } from './error';
+
+type TextDecoder = {
+  readonly encoding: string;
+  readonly fatal: boolean;
+  readonly ignoreBOM: boolean;
+  decode(input?: Uint8Array): string;
+};
+type TextDecoderConstructor = {
+  new (label: 'utf8', options: { fatal: boolean; ignoreBOM?: boolean }): TextDecoder;
+};
+
+// parse utf8 globals
+declare const TextDecoder: TextDecoderConstructor;
+let TextDecoderFatal: TextDecoder;
+let TextDecoderNonFatal: TextDecoder;
+
+/**
+ * Determines if the passed in bytes are valid utf8
+ * @param bytes - An array of 8-bit bytes. Must be indexable and have length property
+ * @param start - The index to start validating
+ * @param end - The index to end validating
+ */
+export function parseUtf8(buffer: Uint8Array, start: number, end: number, fatal: boolean): string {
+  if (fatal) {
+    TextDecoderFatal ??= new TextDecoder('utf8', { fatal: true });
+    try {
+      return TextDecoderFatal.decode(buffer.subarray(start, end));
+    } catch (cause) {
+      throw new BSONError('Invalid UTF-8 string in BSON document', { cause });
+    }
+  }
+  TextDecoderNonFatal ??= new TextDecoder('utf8', { fatal: false });
+  return TextDecoderNonFatal.decode(buffer.subarray(start, end));
+}
diff --git a/backend/node_modules/bson/src/parser/calculate_size.ts b/backend/node_modules/bson/src/parser/calculate_size.ts
new file mode 100644
index 0000000..557d15a
--- /dev/null
+++ b/backend/node_modules/bson/src/parser/calculate_size.ts
@@ -0,0 +1,218 @@
+import { Binary } from '../binary';
+import type { Document } from '../bson';
+import { BSONError, BSONVersionError } from '../error';
+import * as constants from '../constants';
+import { ByteUtils } from '../utils/byte_utils';
+import { isAnyArrayBuffer, isDate, isRegExp } from './utils';
+
+export function internalCalculateObjectSize(
+  object: Document,
+  serializeFunctions?: boolean,
+  ignoreUndefined?: boolean
+): number {
+  let totalLength = 4 + 1;
+
+  if (Array.isArray(object)) {
+    for (let i = 0; i < object.length; i++) {
+      totalLength += calculateElement(
+        i.toString(),
+        object[i],
+        serializeFunctions,
+        true,
+        ignoreUndefined
+      );
+    }
+  } else {
+    // If we have toBSON defined, override the current object
+
+    if (typeof object?.toBSON === 'function') {
+      object = object.toBSON();
+    }
+
+    // Calculate size
+    for (const key of Object.keys(object)) {
+      totalLength += calculateElement(key, object[key], serializeFunctions, false, ignoreUndefined);
+    }
+  }
+
+  return totalLength;
+}
+
+/** @internal */
+function calculateElement(
+  name: string,
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  value: any,
+  serializeFunctions = false,
+  isArray = false,
+  ignoreUndefined = false
+) {
+  // If we have toBSON defined, override the current object
+  if (typeof value?.toBSON === 'function') {
+    value = value.toBSON();
+  }
+
+  switch (typeof value) {
+    case 'string':
+      return 1 + ByteUtils.utf8ByteLength(name) + 1 + 4 + ByteUtils.utf8ByteLength(value) + 1;
+    case 'number':
+      if (
+        Math.floor(value) === value &&
+        value >= constants.JS_INT_MIN &&
+        value <= constants.JS_INT_MAX
+      ) {
+        if (value >= constants.BSON_INT32_MIN && value <= constants.BSON_INT32_MAX) {
+          // 32 bit
+          return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (4 + 1);
+        } else {
+          return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+        }
+      } else {
+        // 64 bit
+        return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+      }
+    case 'undefined':
+      if (isArray || !ignoreUndefined)
+        return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + 1;
+      return 0;
+    case 'boolean':
+      return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (1 + 1);
+    case 'object':
+      if (
+        value != null &&
+        typeof value._bsontype === 'string' &&
+        value[constants.BSON_VERSION_SYMBOL] !== constants.BSON_MAJOR_VERSION
+      ) {
+        throw new BSONVersionError();
+      } else if (value == null || value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') {
+        return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + 1;
+      } else if (value._bsontype === 'ObjectId') {
+        return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (12 + 1);
+      } else if (value instanceof Date || isDate(value)) {
+        return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+      } else if (
+        ArrayBuffer.isView(value) ||
+        value instanceof ArrayBuffer ||
+        isAnyArrayBuffer(value)
+      ) {
+        return (
+          (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (1 + 4 + 1) + value.byteLength
+        );
+      } else if (
+        value._bsontype === 'Long' ||
+        value._bsontype === 'Double' ||
+        value._bsontype === 'Timestamp'
+      ) {
+        return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+      } else if (value._bsontype === 'Decimal128') {
+        return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (16 + 1);
+      } else if (value._bsontype === 'Code') {
+        // Calculate size depending on the availability of a scope
+        if (value.scope != null && Object.keys(value.scope).length > 0) {
+          return (
+            (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+            1 +
+            4 +
+            4 +
+            ByteUtils.utf8ByteLength(value.code.toString()) +
+            1 +
+            internalCalculateObjectSize(value.scope, serializeFunctions, ignoreUndefined)
+          );
+        } else {
+          return (
+            (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+            1 +
+            4 +
+            ByteUtils.utf8ByteLength(value.code.toString()) +
+            1
+          );
+        }
+      } else if (value._bsontype === 'Binary') {
+        const binary: Binary = value;
+        // Check what kind of subtype we have
+        if (binary.sub_type === Binary.SUBTYPE_BYTE_ARRAY) {
+          return (
+            (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+            (binary.position + 1 + 4 + 1 + 4)
+          );
+        } else {
+          return (
+            (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (binary.position + 1 + 4 + 1)
+          );
+        }
+      } else if (value._bsontype === 'Symbol') {
+        return (
+          (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+          ByteUtils.utf8ByteLength(value.value) +
+          4 +
+          1 +
+          1
+        );
+      } else if (value._bsontype === 'DBRef') {
+        // Set up correct object for serialization
+        const ordered_values = Object.assign(
+          {
+            $ref: value.collection,
+            $id: value.oid
+          },
+          value.fields
+        );
+
+        // Add db reference if it exists
+        if (value.db != null) {
+          ordered_values['$db'] = value.db;
+        }
+
+        return (
+          (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+          1 +
+          internalCalculateObjectSize(ordered_values, serializeFunctions, ignoreUndefined)
+        );
+      } else if (value instanceof RegExp || isRegExp(value)) {
+        return (
+          (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+          1 +
+          ByteUtils.utf8ByteLength(value.source) +
+          1 +
+          (value.global ? 1 : 0) +
+          (value.ignoreCase ? 1 : 0) +
+          (value.multiline ? 1 : 0) +
+          1
+        );
+      } else if (value._bsontype === 'BSONRegExp') {
+        return (
+          (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+          1 +
+          ByteUtils.utf8ByteLength(value.pattern) +
+          1 +
+          ByteUtils.utf8ByteLength(value.options) +
+          1
+        );
+      } else {
+        return (
+          (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+          internalCalculateObjectSize(value, serializeFunctions, ignoreUndefined) +
+          1
+        );
+      }
+    case 'function':
+      if (serializeFunctions) {
+        return (
+          (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
+          1 +
+          4 +
+          ByteUtils.utf8ByteLength(value.toString()) +
+          1
+        );
+      }
+      return 0;
+    case 'bigint':
+      return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
+    case 'symbol':
+      return 0;
+    default:
+      throw new BSONError(`Unrecognized JS type: ${typeof value}`);
+  }
+
+  return 0;
+}
diff --git a/backend/node_modules/bson/src/parser/deserializer.ts b/backend/node_modules/bson/src/parser/deserializer.ts
new file mode 100644
index 0000000..97bdd6b
--- /dev/null
+++ b/backend/node_modules/bson/src/parser/deserializer.ts
@@ -0,0 +1,627 @@
+import { Binary, UUID } from '../binary';
+import type { Document } from '../bson';
+import { Code } from '../code';
+import * as constants from '../constants';
+import { DBRef, type DBRefLike, isDBRefLike } from '../db_ref';
+import { Decimal128 } from '../decimal128';
+import { Double } from '../double';
+import { BSONError } from '../error';
+import { Int32 } from '../int_32';
+import { Long } from '../long';
+import { MaxKey } from '../max_key';
+import { MinKey } from '../min_key';
+import { ObjectId } from '../objectid';
+import { BSONRegExp } from '../regexp';
+import { BSONSymbol } from '../symbol';
+import { Timestamp } from '../timestamp';
+import { ByteUtils } from '../utils/byte_utils';
+import { NumberUtils } from '../utils/number_utils';
+
+/** @public */
+export interface DeserializeOptions {
+  /**
+   * when deserializing a Long return as a BigInt.
+   * @defaultValue `false`
+   */
+  useBigInt64?: boolean;
+  /**
+   * when deserializing a Long will fit it into a Number if it's smaller than 53 bits.
+   * @defaultValue `true`
+   */
+  promoteLongs?: boolean;
+  /**
+   * when deserializing a Binary will return it as a node.js Buffer instance.
+   * @defaultValue `false`
+   */
+  promoteBuffers?: boolean;
+  /**
+   * when deserializing will promote BSON values to their Node.js closest equivalent types.
+   * @defaultValue `true`
+   */
+  promoteValues?: boolean;
+  /**
+   * allow to specify if there what fields we wish to return as unserialized raw buffer.
+   * @defaultValue `null`
+   */
+  fieldsAsRaw?: Document;
+  /**
+   * return BSON regular expressions as BSONRegExp instances.
+   * @defaultValue `false`
+   */
+  bsonRegExp?: boolean;
+  /**
+   * allows the buffer to be larger than the parsed BSON object.
+   * @defaultValue `false`
+   */
+  allowObjectSmallerThanBufferSize?: boolean;
+  /**
+   * Offset into buffer to begin reading document from
+   * @defaultValue `0`
+   */
+  index?: number;
+
+  raw?: boolean;
+  /** Allows for opt-out utf-8 validation for all keys or
+   * specified keys. Must be all true or all false.
+   *
+   * @example
+   * ```js
+   * // disables validation on all keys
+   *  validation: { utf8: false }
+   *
+   * // enables validation only on specified keys a, b, and c
+   *  validation: { utf8: { a: true, b: true, c: true } }
+   *
+   *  // disables validation only on specified keys a, b
+   *  validation: { utf8: { a: false, b: false } }
+   * ```
+   */
+  validation?: { utf8: boolean | Record<string, true> | Record<string, false> };
+}
+
+// Internal long versions
+const JS_INT_MAX_LONG = Long.fromNumber(constants.JS_INT_MAX);
+const JS_INT_MIN_LONG = Long.fromNumber(constants.JS_INT_MIN);
+
+export function internalDeserialize(
+  buffer: Uint8Array,
+  options: DeserializeOptions,
+  isArray?: boolean
+): Document {
+  options = options == null ? {} : options;
+  const index = options && options.index ? options.index : 0;
+  // Read the document size
+  const size = NumberUtils.getInt32LE(buffer, index);
+
+  if (size < 5) {
+    throw new BSONError(`bson size must be >= 5, is ${size}`);
+  }
+
+  if (options.allowObjectSmallerThanBufferSize && buffer.length < size) {
+    throw new BSONError(`buffer length ${buffer.length} must be >= bson size ${size}`);
+  }
+
+  if (!options.allowObjectSmallerThanBufferSize && buffer.length !== size) {
+    throw new BSONError(`buffer length ${buffer.length} must === bson size ${size}`);
+  }
+
+  if (size + index > buffer.byteLength) {
+    throw new BSONError(
+      `(bson size ${size} + options.index ${index} must be <= buffer length ${buffer.byteLength})`
+    );
+  }
+
+  // Illegal end value
+  if (buffer[index + size - 1] !== 0) {
+    throw new BSONError(
+      "One object, sized correctly, with a spot for an EOO, but the EOO isn't 0x00"
+    );
+  }
+
+  // Start deserialization
+  return deserializeObject(buffer, index, options, isArray);
+}
+
+const allowedDBRefKeys = /^\$ref$|^\$id$|^\$db$/;
+
+function deserializeObject(
+  buffer: Uint8Array,
+  index: number,
+  options: DeserializeOptions,
+  isArray = false
+) {
+  const fieldsAsRaw = options['fieldsAsRaw'] == null ? null : options['fieldsAsRaw'];
+
+  // Return raw bson buffer instead of parsing it
+  const raw = options['raw'] == null ? false : options['raw'];
+
+  // Return BSONRegExp objects instead of native regular expressions
+  const bsonRegExp = typeof options['bsonRegExp'] === 'boolean' ? options['bsonRegExp'] : false;
+
+  // Controls the promotion of values vs wrapper classes
+  const promoteBuffers = options.promoteBuffers ?? false;
+  const promoteLongs = options.promoteLongs ?? true;
+  const promoteValues = options.promoteValues ?? true;
+  const useBigInt64 = options.useBigInt64 ?? false;
+
+  if (useBigInt64 && !promoteValues) {
+    throw new BSONError('Must either request bigint or Long for int64 deserialization');
+  }
+
+  if (useBigInt64 && !promoteLongs) {
+    throw new BSONError('Must either request bigint or Long for int64 deserialization');
+  }
+
+  // Ensures default validation option if none given
+  const validation = options.validation == null ? { utf8: true } : options.validation;
+
+  // Shows if global utf-8 validation is enabled or disabled
+  let globalUTFValidation = true;
+  // Reflects utf-8 validation setting regardless of global or specific key validation
+  let validationSetting: boolean;
+  // Set of keys either to enable or disable validation on
+  let utf8KeysSet;
+
+  // Check for boolean uniformity and empty validation option
+  const utf8ValidatedKeys = validation.utf8;
+  if (typeof utf8ValidatedKeys === 'boolean') {
+    validationSetting = utf8ValidatedKeys;
+  } else {
+    globalUTFValidation = false;
+    const utf8ValidationValues = Object.keys(utf8ValidatedKeys).map(function (key) {
+      return utf8ValidatedKeys[key];
+    });
+    if (utf8ValidationValues.length === 0) {
+      throw new BSONError('UTF-8 validation setting cannot be empty');
+    }
+    if (typeof utf8ValidationValues[0] !== 'boolean') {
+      throw new BSONError('Invalid UTF-8 validation option, must specify boolean values');
+    }
+    validationSetting = utf8ValidationValues[0];
+    // Ensures boolean uniformity in utf-8 validation (all true or all false)
+    if (!utf8ValidationValues.every(item => item === validationSetting)) {
+      throw new BSONError('Invalid UTF-8 validation option - keys must be all true or all false');
+    }
+  }
+
+  // Add keys to set that will either be validated or not based on validationSetting
+  if (!globalUTFValidation) {
+    utf8KeysSet = new Set();
+
+    for (const key of Object.keys(utf8ValidatedKeys)) {
+      utf8KeysSet.add(key);
+    }
+  }
+
+  // Set the start index
+  const startIndex = index;
+
+  // Validate that we have at least 4 bytes of buffer
+  if (buffer.length < 5) throw new BSONError('corrupt bson message < 5 bytes long');
+
+  // Read the document size
+  const size = NumberUtils.getInt32LE(buffer, index);
+  index += 4;
+
+  // Ensure buffer is valid size
+  if (size < 5 || size > buffer.length) throw new BSONError('corrupt bson message');
+
+  // Create holding object
+  const object: Document = isArray ? [] : {};
+  // Used for arrays to skip having to perform utf8 decoding
+  let arrayIndex = 0;
+  const done = false;
+
+  let isPossibleDBRef = isArray ? false : null;
+
+  // While we have more left data left keep parsing
+  while (!done) {
+    // Read the type
+    const elementType = buffer[index++];
+
+    // If we get a zero it's the last byte, exit
+    if (elementType === 0) break;
+
+    // Get the start search index
+    let i = index;
+    // Locate the end of the c string
+    while (buffer[i] !== 0x00 && i < buffer.length) {
+      i++;
+    }
+
+    // If are at the end of the buffer there is a problem with the document
+    if (i >= buffer.byteLength) throw new BSONError('Bad BSON Document: illegal CString');
+
+    // Represents the key
+    const name = isArray ? arrayIndex++ : ByteUtils.toUTF8(buffer, index, i, false);
+
+    // shouldValidateKey is true if the key should be validated, false otherwise
+    let shouldValidateKey = true;
+    if (globalUTFValidation || utf8KeysSet?.has(name)) {
+      shouldValidateKey = validationSetting;
+    } else {
+      shouldValidateKey = !validationSetting;
+    }
+
+    if (isPossibleDBRef !== false && (name as string)[0] === '$') {
+      isPossibleDBRef = allowedDBRefKeys.test(name as string);
+    }
+    let value;
+
+    index = i + 1;
+
+    if (elementType === constants.BSON_DATA_STRING) {
+      const stringSize = NumberUtils.getInt32LE(buffer, index);
+      index += 4;
+      if (
+        stringSize <= 0 ||
+        stringSize > buffer.length - index ||
+        buffer[index + stringSize - 1] !== 0
+      ) {
+        throw new BSONError('bad string length in bson');
+      }
+      value = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey);
+      index = index + stringSize;
+    } else if (elementType === constants.BSON_DATA_OID) {
+      const oid = ByteUtils.allocateUnsafe(12);
+      for (let i = 0; i < 12; i++) oid[i] = buffer[index + i];
+      value = new ObjectId(oid);
+      index = index + 12;
+    } else if (elementType === constants.BSON_DATA_INT && promoteValues === false) {
+      value = new Int32(NumberUtils.getInt32LE(buffer, index));
+      index += 4;
+    } else if (elementType === constants.BSON_DATA_INT) {
+      value = NumberUtils.getInt32LE(buffer, index);
+      index += 4;
+    } else if (elementType === constants.BSON_DATA_NUMBER) {
+      value = NumberUtils.getFloat64LE(buffer, index);
+      index += 8;
+      if (promoteValues === false) value = new Double(value);
+    } else if (elementType === constants.BSON_DATA_DATE) {
+      const lowBits = NumberUtils.getInt32LE(buffer, index);
+      const highBits = NumberUtils.getInt32LE(buffer, index + 4);
+      index += 8;
+
+      value = new Date(new Long(lowBits, highBits).toNumber());
+    } else if (elementType === constants.BSON_DATA_BOOLEAN) {
+      if (buffer[index] !== 0 && buffer[index] !== 1)
+        throw new BSONError('illegal boolean type value');
+      value = buffer[index++] === 1;
+    } else if (elementType === constants.BSON_DATA_OBJECT) {
+      const _index = index;
+      const objectSize = NumberUtils.getInt32LE(buffer, index);
+
+      if (objectSize <= 0 || objectSize > buffer.length - index)
+        throw new BSONError('bad embedded document length in bson');
+
+      // We have a raw value
+      if (raw) {
+        value = buffer.subarray(index, index + objectSize);
+      } else {
+        let objectOptions = options;
+        if (!globalUTFValidation) {
+          objectOptions = { ...options, validation: { utf8: shouldValidateKey } };
+        }
+        value = deserializeObject(buffer, _index, objectOptions, false);
+      }
+
+      index = index + objectSize;
+    } else if (elementType === constants.BSON_DATA_ARRAY) {
+      const _index = index;
+      const objectSize = NumberUtils.getInt32LE(buffer, index);
+      let arrayOptions: DeserializeOptions = options;
+
+      // Stop index
+      const stopIndex = index + objectSize;
+
+      // All elements of array to be returned as raw bson
+      if (fieldsAsRaw && fieldsAsRaw[name]) {
+        arrayOptions = { ...options, raw: true };
+      }
+
+      if (!globalUTFValidation) {
+        arrayOptions = { ...arrayOptions, validation: { utf8: shouldValidateKey } };
+      }
+      value = deserializeObject(buffer, _index, arrayOptions, true);
+      index = index + objectSize;
+
+      if (buffer[index - 1] !== 0) throw new BSONError('invalid array terminator byte');
+      if (index !== stopIndex) throw new BSONError('corrupted array bson');
+    } else if (elementType === constants.BSON_DATA_UNDEFINED) {
+      value = undefined;
+    } else if (elementType === constants.BSON_DATA_NULL) {
+      value = null;
+    } else if (elementType === constants.BSON_DATA_LONG) {
+      if (useBigInt64) {
+        value = NumberUtils.getBigInt64LE(buffer, index);
+        index += 8;
+      } else {
+        // Unpack the low and high bits
+        const lowBits = NumberUtils.getInt32LE(buffer, index);
+        const highBits = NumberUtils.getInt32LE(buffer, index + 4);
+        index += 8;
+
+        const long = new Long(lowBits, highBits);
+        // Promote the long if possible
+        if (promoteLongs && promoteValues === true) {
+          value =
+            long.lessThanOrEqual(JS_INT_MAX_LONG) && long.greaterThanOrEqual(JS_INT_MIN_LONG)
+              ? long.toNumber()
+              : long;
+        } else {
+          value = long;
+        }
+      }
+    } else if (elementType === constants.BSON_DATA_DECIMAL128) {
+      // Buffer to contain the decimal bytes
+      const bytes = ByteUtils.allocateUnsafe(16);
+      // Copy the next 16 bytes into the bytes buffer
+      for (let i = 0; i < 16; i++) bytes[i] = buffer[index + i];
+      // Update index
+      index = index + 16;
+      // Assign the new Decimal128 value
+      value = new Decimal128(bytes);
+    } else if (elementType === constants.BSON_DATA_BINARY) {
+      let binarySize = NumberUtils.getInt32LE(buffer, index);
+      index += 4;
+      const totalBinarySize = binarySize;
+      const subType = buffer[index++];
+
+      // Did we have a negative binary size, throw
+      if (binarySize < 0) throw new BSONError('Negative binary type element size found');
+
+      // Is the length longer than the document
+      if (binarySize > buffer.byteLength)
+        throw new BSONError('Binary type size larger than document size');
+
+      // If we have subtype 2 skip the 4 bytes for the size
+      if (subType === Binary.SUBTYPE_BYTE_ARRAY) {
+        binarySize = NumberUtils.getInt32LE(buffer, index);
+        index += 4;
+        if (binarySize < 0)
+          throw new BSONError('Negative binary type element size found for subtype 0x02');
+        if (binarySize > totalBinarySize - 4)
+          throw new BSONError('Binary type with subtype 0x02 contains too long binary size');
+        if (binarySize < totalBinarySize - 4)
+          throw new BSONError('Binary type with subtype 0x02 contains too short binary size');
+      }
+
+      if (promoteBuffers && promoteValues) {
+        value = ByteUtils.toLocalBufferType(buffer.subarray(index, index + binarySize));
+      } else {
+        value = new Binary(buffer.subarray(index, index + binarySize), subType);
+        if (subType === constants.BSON_BINARY_SUBTYPE_UUID_NEW && UUID.isValid(value)) {
+          value = value.toUUID();
+        }
+      }
+
+      // Update the index
+      index = index + binarySize;
+    } else if (elementType === constants.BSON_DATA_REGEXP && bsonRegExp === false) {
+      // Get the start search index
+      i = index;
+      // Locate the end of the c string
+      while (buffer[i] !== 0x00 && i < buffer.length) {
+        i++;
+      }
+      // If are at the end of the buffer there is a problem with the document
+      if (i >= buffer.length) throw new BSONError('Bad BSON Document: illegal CString');
+      // Return the C string
+      const source = ByteUtils.toUTF8(buffer, index, i, false);
+      // Create the regexp
+      index = i + 1;
+
+      // Get the start search index
+      i = index;
+      // Locate the end of the c string
+      while (buffer[i] !== 0x00 && i < buffer.length) {
+        i++;
+      }
+      // If are at the end of the buffer there is a problem with the document
+      if (i >= buffer.length) throw new BSONError('Bad BSON Document: illegal CString');
+      // Return the C string
+      const regExpOptions = ByteUtils.toUTF8(buffer, index, i, false);
+      index = i + 1;
+
+      // For each option add the corresponding one for javascript
+      const optionsArray = new Array(regExpOptions.length);
+
+      // Parse options
+      for (i = 0; i < regExpOptions.length; i++) {
+        switch (regExpOptions[i]) {
+          case 'm':
+            optionsArray[i] = 'm';
+            break;
+          case 's':
+            optionsArray[i] = 'g';
+            break;
+          case 'i':
+            optionsArray[i] = 'i';
+            break;
+        }
+      }
+
+      value = new RegExp(source, optionsArray.join(''));
+    } else if (elementType === constants.BSON_DATA_REGEXP && bsonRegExp === true) {
+      // Get the start search index
+      i = index;
+      // Locate the end of the c string
+      while (buffer[i] !== 0x00 && i < buffer.length) {
+        i++;
+      }
+      // If are at the end of the buffer there is a problem with the document
+      if (i >= buffer.length) throw new BSONError('Bad BSON Document: illegal CString');
+      // Return the C string
+      const source = ByteUtils.toUTF8(buffer, index, i, false);
+      index = i + 1;
+
+      // Get the start search index
+      i = index;
+      // Locate the end of the c string
+      while (buffer[i] !== 0x00 && i < buffer.length) {
+        i++;
+      }
+      // If are at the end of the buffer there is a problem with the document
+      if (i >= buffer.length) throw new BSONError('Bad BSON Document: illegal CString');
+      // Return the C string
+      const regExpOptions = ByteUtils.toUTF8(buffer, index, i, false);
+      index = i + 1;
+
+      // Set the object
+      value = new BSONRegExp(source, regExpOptions);
+    } else if (elementType === constants.BSON_DATA_SYMBOL) {
+      const stringSize = NumberUtils.getInt32LE(buffer, index);
+      index += 4;
+      if (
+        stringSize <= 0 ||
+        stringSize > buffer.length - index ||
+        buffer[index + stringSize - 1] !== 0
+      ) {
+        throw new BSONError('bad string length in bson');
+      }
+      const symbol = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey);
+      value = promoteValues ? symbol : new BSONSymbol(symbol);
+      index = index + stringSize;
+    } else if (elementType === constants.BSON_DATA_TIMESTAMP) {
+      value = new Timestamp({
+        i: NumberUtils.getUint32LE(buffer, index),
+        t: NumberUtils.getUint32LE(buffer, index + 4)
+      });
+      index += 8;
+    } else if (elementType === constants.BSON_DATA_MIN_KEY) {
+      value = new MinKey();
+    } else if (elementType === constants.BSON_DATA_MAX_KEY) {
+      value = new MaxKey();
+    } else if (elementType === constants.BSON_DATA_CODE) {
+      const stringSize = NumberUtils.getInt32LE(buffer, index);
+      index += 4;
+      if (
+        stringSize <= 0 ||
+        stringSize > buffer.length - index ||
+        buffer[index + stringSize - 1] !== 0
+      ) {
+        throw new BSONError('bad string length in bson');
+      }
+      const functionString = ByteUtils.toUTF8(
+        buffer,
+        index,
+        index + stringSize - 1,
+        shouldValidateKey
+      );
+
+      value = new Code(functionString);
+
+      // Update parse index position
+      index = index + stringSize;
+    } else if (elementType === constants.BSON_DATA_CODE_W_SCOPE) {
+      const totalSize = NumberUtils.getInt32LE(buffer, index);
+      index += 4;
+
+      // Element cannot be shorter than totalSize + stringSize + documentSize + terminator
+      if (totalSize < 4 + 4 + 4 + 1) {
+        throw new BSONError('code_w_scope total size shorter minimum expected length');
+      }
+
+      // Get the code string size
+      const stringSize = NumberUtils.getInt32LE(buffer, index);
+      index += 4;
+      // Check if we have a valid string
+      if (
+        stringSize <= 0 ||
+        stringSize > buffer.length - index ||
+        buffer[index + stringSize - 1] !== 0
+      ) {
+        throw new BSONError('bad string length in bson');
+      }
+
+      // Javascript function
+      const functionString = ByteUtils.toUTF8(
+        buffer,
+        index,
+        index + stringSize - 1,
+        shouldValidateKey
+      );
+      // Update parse index position
+      index = index + stringSize;
+      // Parse the element
+      const _index = index;
+      // Decode the size of the object document
+      const objectSize = NumberUtils.getInt32LE(buffer, index);
+      // Decode the scope object
+      const scopeObject = deserializeObject(buffer, _index, options, false);
+      // Adjust the index
+      index = index + objectSize;
+
+      // Check if field length is too short
+      if (totalSize < 4 + 4 + objectSize + stringSize) {
+        throw new BSONError('code_w_scope total size is too short, truncating scope');
+      }
+
+      // Check if totalSize field is too long
+      if (totalSize > 4 + 4 + objectSize + stringSize) {
+        throw new BSONError('code_w_scope total size is too long, clips outer document');
+      }
+
+      value = new Code(functionString, scopeObject);
+    } else if (elementType === constants.BSON_DATA_DBPOINTER) {
+      // Get the code string size
+      const stringSize = NumberUtils.getInt32LE(buffer, index);
+      index += 4;
+      // Check if we have a valid string
+      if (
+        stringSize <= 0 ||
+        stringSize > buffer.length - index ||
+        buffer[index + stringSize - 1] !== 0
+      )
+        throw new BSONError('bad string length in bson');
+      // Namespace
+      const namespace = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey);
+      // Update parse index position
+      index = index + stringSize;
+
+      // Read the oid
+      const oidBuffer = ByteUtils.allocateUnsafe(12);
+      for (let i = 0; i < 12; i++) oidBuffer[i] = buffer[index + i];
+      const oid = new ObjectId(oidBuffer);
+
+      // Update the index
+      index = index + 12;
+
+      // Upgrade to DBRef type
+      value = new DBRef(namespace, oid);
+    } else {
+      throw new BSONError(
+        `Detected unknown BSON type ${elementType.toString(16)} for fieldname "${name}"`
+      );
+    }
+    if (name === '__proto__') {
+      Object.defineProperty(object, name, {
+        value,
+        writable: true,
+        enumerable: true,
+        configurable: true
+      });
+    } else {
+      object[name] = value;
+    }
+  }
+
+  // Check if the deserialization was against a valid array/object
+  if (size !== index - startIndex) {
+    if (isArray) throw new BSONError('corrupt array bson');
+    throw new BSONError('corrupt object bson');
+  }
+
+  // if we did not find "$ref", "$id", "$db", or found an extraneous $key, don't make a DBRef
+  if (!isPossibleDBRef) return object;
+
+  if (isDBRefLike(object)) {
+    const copy = Object.assign({}, object) as Partial<DBRefLike>;
+    delete copy.$ref;
+    delete copy.$id;
+    delete copy.$db;
+    return new DBRef(object.$ref, object.$id, object.$db, copy);
+  }
+
+  return object;
+}
diff --git a/backend/node_modules/bson/src/parser/on_demand/index.ts b/backend/node_modules/bson/src/parser/on_demand/index.ts
new file mode 100644
index 0000000..f099c11
--- /dev/null
+++ b/backend/node_modules/bson/src/parser/on_demand/index.ts
@@ -0,0 +1,32 @@
+import { ByteUtils } from '../../utils/byte_utils';
+import { NumberUtils } from '../../utils/number_utils';
+import { type BSONElement, parseToElements } from './parse_to_elements';
+/**
+ * @experimental
+ * @public
+ *
+ * A new set of BSON APIs that are currently experimental and not intended for production use.
+ */
+export type OnDemand = {
+  parseToElements: (this: void, bytes: Uint8Array, startOffset?: number) => Iterable<BSONElement>;
+  // Types
+  BSONElement: BSONElement;
+
+  // Utils
+  ByteUtils: ByteUtils;
+  NumberUtils: NumberUtils;
+};
+
+/**
+ * @experimental
+ * @public
+ */
+const onDemand: OnDemand = Object.create(null);
+
+onDemand.parseToElements = parseToElements;
+onDemand.ByteUtils = ByteUtils;
+onDemand.NumberUtils = NumberUtils;
+
+Object.freeze(onDemand);
+
+export { onDemand };
diff --git a/backend/node_modules/bson/src/parser/on_demand/parse_to_elements.ts b/backend/node_modules/bson/src/parser/on_demand/parse_to_elements.ts
new file mode 100644
index 0000000..f2c8e69
--- /dev/null
+++ b/backend/node_modules/bson/src/parser/on_demand/parse_to_elements.ts
@@ -0,0 +1,188 @@
+import { BSONOffsetError } from '../../error';
+import { NumberUtils } from '../../utils/number_utils';
+
+/**
+ * @internal
+ *
+ * @remarks
+ * - This enum is const so the code we produce will inline the numbers
+ * - `minKey` is set to 255 so unsigned comparisons succeed
+ * - Modify with caution, double check the bundle contains literals
+ */
+const enum BSONElementType {
+  double = 1,
+  string = 2,
+  object = 3,
+  array = 4,
+  binData = 5,
+  undefined = 6,
+  objectId = 7,
+  bool = 8,
+  date = 9,
+  null = 10,
+  regex = 11,
+  dbPointer = 12,
+  javascript = 13,
+  symbol = 14,
+  javascriptWithScope = 15,
+  int = 16,
+  timestamp = 17,
+  long = 18,
+  decimal = 19,
+  minKey = 255,
+  maxKey = 127
+}
+
+/**
+ * @public
+ * @experimental
+ */
+export type BSONElement = [
+  type: number,
+  nameOffset: number,
+  nameLength: number,
+  offset: number,
+  length: number
+];
+
+function getSize(source: Uint8Array, offset: number) {
+  try {
+    return NumberUtils.getNonnegativeInt32LE(source, offset);
+  } catch (cause) {
+    throw new BSONOffsetError('BSON size cannot be negative', offset, { cause });
+  }
+}
+
+/**
+ * Searches for null terminator of a BSON element's value (Never the document null terminator)
+ * **Does not** bounds check since this should **ONLY** be used within parseToElements which has asserted that `bytes` ends with a `0x00`.
+ * So this will at most iterate to the document's terminator and error if that is the offset reached.
+ */
+function findNull(bytes: Uint8Array, offset: number): number {
+  let nullTerminatorOffset = offset;
+
+  for (; bytes[nullTerminatorOffset] !== 0x00; nullTerminatorOffset++);
+
+  if (nullTerminatorOffset === bytes.length - 1) {
+    // We reached the null terminator of the document, not a value's
+    throw new BSONOffsetError('Null terminator not found', offset);
+  }
+
+  return nullTerminatorOffset;
+}
+
+/**
+ * @public
+ * @experimental
+ */
+export function parseToElements(
+  bytes: Uint8Array,
+  startOffset: number | null = 0
+): Iterable<BSONElement> {
+  startOffset ??= 0;
+
+  if (bytes.length < 5) {
+    throw new BSONOffsetError(
+      `Input must be at least 5 bytes, got ${bytes.length} bytes`,
+      startOffset
+    );
+  }
+
+  const documentSize = getSize(bytes, startOffset);
+
+  if (documentSize > bytes.length - startOffset) {
+    throw new BSONOffsetError(
+      `Parsed documentSize (${documentSize} bytes) does not match input length (${bytes.length} bytes)`,
+      startOffset
+    );
+  }
+
+  if (bytes[startOffset + documentSize - 1] !== 0x00) {
+    throw new BSONOffsetError('BSON documents must end in 0x00', startOffset + documentSize);
+  }
+
+  const elements: BSONElement[] = [];
+  let offset = startOffset + 4;
+
+  while (offset <= documentSize + startOffset) {
+    const type = bytes[offset];
+    offset += 1;
+
+    if (type === 0) {
+      if (offset - startOffset !== documentSize) {
+        throw new BSONOffsetError(`Invalid 0x00 type byte`, offset);
+      }
+      break;
+    }
+
+    const nameOffset = offset;
+    const nameLength = findNull(bytes, offset) - nameOffset;
+    offset += nameLength + 1;
+
+    let length: number;
+
+    if (
+      type === BSONElementType.double ||
+      type === BSONElementType.long ||
+      type === BSONElementType.date ||
+      type === BSONElementType.timestamp
+    ) {
+      length = 8;
+    } else if (type === BSONElementType.int) {
+      length = 4;
+    } else if (type === BSONElementType.objectId) {
+      length = 12;
+    } else if (type === BSONElementType.decimal) {
+      length = 16;
+    } else if (type === BSONElementType.bool) {
+      length = 1;
+    } else if (
+      type === BSONElementType.null ||
+      type === BSONElementType.undefined ||
+      type === BSONElementType.maxKey ||
+      type === BSONElementType.minKey
+    ) {
+      length = 0;
+    }
+    // Needs a size calculation
+    else if (type === BSONElementType.regex) {
+      length = findNull(bytes, findNull(bytes, offset) + 1) + 1 - offset;
+    } else if (
+      type === BSONElementType.object ||
+      type === BSONElementType.array ||
+      type === BSONElementType.javascriptWithScope
+    ) {
+      length = getSize(bytes, offset);
+    } else if (
+      type === BSONElementType.string ||
+      type === BSONElementType.binData ||
+      type === BSONElementType.dbPointer ||
+      type === BSONElementType.javascript ||
+      type === BSONElementType.symbol
+    ) {
+      length = getSize(bytes, offset) + 4;
+      if (type === BSONElementType.binData) {
+        // binary subtype
+        length += 1;
+      }
+      if (type === BSONElementType.dbPointer) {
+        // dbPointer's objectId
+        length += 12;
+      }
+    } else {
+      throw new BSONOffsetError(
+        `Invalid 0x${type.toString(16).padStart(2, '0')} type byte`,
+        offset
+      );
+    }
+
+    if (length > documentSize) {
+      throw new BSONOffsetError('value reports length larger than document', offset);
+    }
+
+    elements.push([type, nameOffset, nameLength, offset, length]);
+    offset += length;
+  }
+
+  return elements;
+}
diff --git a/backend/node_modules/bson/src/parser/serializer.ts b/backend/node_modules/bson/src/parser/serializer.ts
new file mode 100644
index 0000000..787bfa8
--- /dev/null
+++ b/backend/node_modules/bson/src/parser/serializer.ts
@@ -0,0 +1,954 @@
+import { Binary, validateBinaryVector } from '../binary';
+import type { BSONSymbol, DBRef, Document, MaxKey } from '../bson';
+import type { Code } from '../code';
+import * as constants from '../constants';
+import type { DBRefLike } from '../db_ref';
+import type { Decimal128 } from '../decimal128';
+import type { Double } from '../double';
+import { BSONError, BSONVersionError } from '../error';
+import type { Int32 } from '../int_32';
+import { Long } from '../long';
+import type { MinKey } from '../min_key';
+import type { ObjectId } from '../objectid';
+import type { BSONRegExp } from '../regexp';
+import { ByteUtils } from '../utils/byte_utils';
+import { NumberUtils } from '../utils/number_utils';
+import { isAnyArrayBuffer, isDate, isMap, isRegExp, isUint8Array } from './utils';
+
+/** @public */
+export interface SerializeOptions {
+  /**
+   * the serializer will check if keys are valid.
+   * @defaultValue `false`
+   */
+  checkKeys?: boolean;
+  /**
+   * serialize the javascript functions
+   * @defaultValue `false`
+   */
+  serializeFunctions?: boolean;
+  /**
+   * serialize will not emit undefined fields
+   * note that the driver sets this to `false`
+   * @defaultValue `true`
+   */
+  ignoreUndefined?: boolean;
+  /** @internal Resize internal buffer */
+  minInternalBufferSize?: number;
+  /**
+   * the index in the buffer where we wish to start serializing into
+   * @defaultValue `0`
+   */
+  index?: number;
+}
+
+const regexp = /\x00/; // eslint-disable-line no-control-regex
+const ignoreKeys = new Set(['$db', '$ref', '$id', '$clusterTime']);
+
+/*
+ * isArray indicates if we are writing to a BSON array (type 0x04)
+ * which forces the "key" which really an array index as a string to be written as ascii
+ * This will catch any errors in index as a string generation
+ */
+
+function serializeString(buffer: Uint8Array, key: string, value: string, index: number) {
+  // Encode String type
+  buffer[index++] = constants.BSON_DATA_STRING;
+  // Number of written bytes
+  const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+  // Encode the name
+  index = index + numberOfWrittenBytes + 1;
+  buffer[index - 1] = 0;
+  // Write the string
+  const size = ByteUtils.encodeUTF8Into(buffer, value, index + 4);
+  // Write the size of the string to buffer
+  NumberUtils.setInt32LE(buffer, index, size + 1);
+  // Update index
+  index = index + 4 + size;
+  // Write zero
+  buffer[index++] = 0;
+  return index;
+}
+
+function serializeNumber(buffer: Uint8Array, key: string, value: number, index: number) {
+  const isNegativeZero = Object.is(value, -0);
+
+  const type =
+    !isNegativeZero &&
+    Number.isSafeInteger(value) &&
+    value <= constants.BSON_INT32_MAX &&
+    value >= constants.BSON_INT32_MIN
+      ? constants.BSON_DATA_INT
+      : constants.BSON_DATA_NUMBER;
+
+  buffer[index++] = type;
+
+  const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+  index = index + numberOfWrittenBytes;
+  buffer[index++] = 0x00;
+
+  if (type === constants.BSON_DATA_INT) {
+    index += NumberUtils.setInt32LE(buffer, index, value);
+  } else {
+    index += NumberUtils.setFloat64LE(buffer, index, value);
+  }
+
+  return index;
+}
+
+function serializeBigInt(buffer: Uint8Array, key: string, value: bigint, index: number) {
+  buffer[index++] = constants.BSON_DATA_LONG;
+  // Number of written bytes
+  const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+  // Encode the name
+  index += numberOfWrittenBytes;
+  buffer[index++] = 0;
+
+  index += NumberUtils.setBigInt64LE(buffer, index, value);
+
+  return index;
+}
+
+function serializeNull(buffer: Uint8Array, key: string, _: unknown, index: number) {
+  // Set long type
+  buffer[index++] = constants.BSON_DATA_NULL;
+
+  // Number of written bytes
+  const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+
+  // Encode the name
+  index = index + numberOfWrittenBytes;
+  buffer[index++] = 0;
+  return index;
+}
+
+function serializeBoolean(buffer: Uint8Array, key: string, value: boolean, index: number) {
+  // Write the type
+  buffer[index++] = constants.BSON_DATA_BOOLEAN;
+  // Number of written bytes
+  const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+  // Encode the name
+  index = index + numberOfWrittenBytes;
+  buffer[index++] = 0;
+  // Encode the boolean value
+  buffer[index++] = value ? 1 : 0;
+  return index;
+}
+
+function serializeDate(buffer: Uint8Array, key: string, value: Date, index: number) {
+  // Write the type
+  buffer[index++] = constants.BSON_DATA_DATE;
+  // Number of written bytes
+  const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+  // Encode the name
+  index = index + numberOfWrittenBytes;
+  buffer[index++] = 0;
+
+  // Write the date
+  const dateInMilis = Long.fromNumber(value.getTime());
+  const lowBits = dateInMilis.getLowBits();
+  const highBits = dateInMilis.getHighBits();
+  // Encode low bits
+  index += NumberUtils.setInt32LE(buffer, index, lowBits);
+  // Encode high bits
+  index += NumberUtils.setInt32LE(buffer, index, highBits);
+  return index;
+}
+
+function serializeRegExp(buffer: Uint8Array, key: string, value: RegExp, index: number) {
+  // Write the type
+  buffer[index++] = constants.BSON_DATA_REGEXP;
+  // Number of written bytes
+  const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+
+  // Encode the name
+  index = index + numberOfWrittenBytes;
+  buffer[index++] = 0;
+  if (value.source && value.source.match(regexp) != null) {
+    throw new BSONError('value ' + value.source + ' must not contain null bytes');
+  }
+  // Adjust the index
+  index = index + ByteUtils.encodeUTF8Into(buffer, value.source, index);
+  // Write zero
+  buffer[index++] = 0x00;
+  // Write the parameters
+  if (value.ignoreCase) buffer[index++] = 0x69; // i
+  if (value.global) buffer[index++] = 0x73; // s
+  if (value.multiline) buffer[index++] = 0x6d; // m
+
+  // Add ending zero
+  buffer[index++] = 0x00;
+  return index;
+}
+
+function serializeBSONRegExp(buffer: Uint8Array, key: string, value: BSONRegExp, index: number) {
+  // Write the type
+  buffer[index++] = constants.BSON_DATA_REGEXP;
+  // Number of written bytes
+  const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+  // Encode the name
+  index = index + numberOfWrittenBytes;
+  buffer[index++] = 0;
+
+  // Check the pattern for 0 bytes
+  if (value.pattern.match(regexp) != null) {
+    // The BSON spec doesn't allow keys with null bytes because keys are
+    // null-terminated.
+    throw new BSONError('pattern ' + value.pattern + ' must not contain null bytes');
+  }
+
+  // Adjust the index
+  index = index + ByteUtils.encodeUTF8Into(buffer, value.pattern, index);
+  // Write zero
+  buffer[index++] = 0x00;
+  // Write the options
+  const sortedOptions = value.options.split('').sort().join('');
+  index = index + ByteUtils.encodeUTF8Into(buffer, sortedOptions, index);
+  // Add ending zero
+  buffer[index++] = 0x00;
+  return index;
+}
+
+function serializeMinMax(buffer: Uint8Array, key: string, value: MinKey | MaxKey, index: number) {
+  // Write the type of either min or max key
+  if (value === null) {
+    buffer[index++] = constants.BSON_DATA_NULL;
+  } else if (value._bsontype === 'MinKey') {
+    buffer[index++] = constants.BSON_DATA_MIN_KEY;
+  } else {
+    buffer[index++] = constants.BSON_DATA_MAX_KEY;
+  }
+
+  // Number of written bytes
+  const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+  // Encode the name
+  index = index + numberOfWrittenBytes;
+  buffer[index++] = 0;
+  return index;
+}
+
+function serializeObjectId(buffer: Uint8Array, key: string, value: ObjectId, index: number) {
+  // Write the type
+  buffer[index++] = constants.BSON_DATA_OID;
+  // Number of written bytes
+  const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+
+  // Encode the name
+  index = index + numberOfWrittenBytes;
+  buffer[index++] = 0;
+
+  index += value.serializeInto(buffer, index);
+
+  // Adjust index
+  return index;
+}
+
+function serializeBuffer(buffer: Uint8Array, key: string, value: Uint8Array, index: number) {
+  // Write the type
+  buffer[index++] = constants.BSON_DATA_BINARY;
+  // Number of written bytes
+  const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+  // Encode the name
+  index = index + numberOfWrittenBytes;
+  buffer[index++] = 0;
+  // Get size of the buffer (current write point)
+  const size = value.length;
+  // Write the size of the string to buffer
+  index += NumberUtils.setInt32LE(buffer, index, size);
+  // Write the default subtype
+  buffer[index++] = constants.BSON_BINARY_SUBTYPE_DEFAULT;
+  // Copy the content form the binary field to the buffer
+  if (size <= 16) {
+    for (let i = 0; i < size; i++) buffer[index + i] = value[i];
+  } else {
+    buffer.set(value, index);
+  }
+  // Adjust the index
+  index = index + size;
+  return index;
+}
+
+function serializeObject(
+  buffer: Uint8Array,
+  key: string,
+  value: Document,
+  index: number,
+  checkKeys: boolean,
+  depth: number,
+  serializeFunctions: boolean,
+  ignoreUndefined: boolean,
+  path: Set<Document>
+) {
+  if (path.has(value)) {
+    throw new BSONError('Cannot convert circular structure to BSON');
+  }
+
+  path.add(value);
+
+  // Write the type
+  buffer[index++] = Array.isArray(value) ? constants.BSON_DATA_ARRAY : constants.BSON_DATA_OBJECT;
+  // Number of written bytes
+  const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+  // Encode the name
+  index = index + numberOfWrittenBytes;
+  buffer[index++] = 0;
+  const endIndex = serializeInto(
+    buffer,
+    value,
+    checkKeys,
+    index,
+    depth + 1,
+    serializeFunctions,
+    ignoreUndefined,
+    path
+  );
+
+  path.delete(value);
+
+  return endIndex;
+}
+
+function serializeDecimal128(buffer: Uint8Array, key: string, value: Decimal128, index: number) {
+  buffer[index++] = constants.BSON_DATA_DECIMAL128;
+  // Number of written bytes
+  const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+  // Encode the name
+  index = index + numberOfWrittenBytes;
+  buffer[index++] = 0;
+  // Write the data from the value
+  for (let i = 0; i < 16; i++) buffer[index + i] = value.bytes[i];
+  return index + 16;
+}
+
+function serializeLong(buffer: Uint8Array, key: string, value: Long, index: number) {
+  // Write the type
+  buffer[index++] =
+    value._bsontype === 'Long' ? constants.BSON_DATA_LONG : constants.BSON_DATA_TIMESTAMP;
+  // Number of written bytes
+  const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+  // Encode the name
+  index = index + numberOfWrittenBytes;
+  buffer[index++] = 0;
+  // Write the date
+  const lowBits = value.getLowBits();
+  const highBits = value.getHighBits();
+  // Encode low bits
+  index += NumberUtils.setInt32LE(buffer, index, lowBits);
+  // Encode high bits
+  index += NumberUtils.setInt32LE(buffer, index, highBits);
+  return index;
+}
+
+function serializeInt32(buffer: Uint8Array, key: string, value: Int32 | number, index: number) {
+  value = value.valueOf();
+  // Set int type 32 bits or less
+  buffer[index++] = constants.BSON_DATA_INT;
+  // Number of written bytes
+  const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+  // Encode the name
+  index = index + numberOfWrittenBytes;
+  buffer[index++] = 0;
+  // Write the int value
+  index += NumberUtils.setInt32LE(buffer, index, value);
+  return index;
+}
+
+function serializeDouble(buffer: Uint8Array, key: string, value: Double, index: number) {
+  // Encode as double
+  buffer[index++] = constants.BSON_DATA_NUMBER;
+
+  // Number of written bytes
+  const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+
+  // Encode the name
+  index = index + numberOfWrittenBytes;
+  buffer[index++] = 0;
+
+  // Write float
+  index += NumberUtils.setFloat64LE(buffer, index, value.value);
+
+  return index;
+}
+
+function serializeFunction(buffer: Uint8Array, key: string, value: Function, index: number) {
+  buffer[index++] = constants.BSON_DATA_CODE;
+  // Number of written bytes
+  const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+  // Encode the name
+  index = index + numberOfWrittenBytes;
+  buffer[index++] = 0;
+  // Function string
+  const functionString = value.toString();
+
+  // Write the string
+  const size = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1;
+  // Write the size of the string to buffer
+  NumberUtils.setInt32LE(buffer, index, size);
+  // Update index
+  index = index + 4 + size - 1;
+  // Write zero
+  buffer[index++] = 0;
+  return index;
+}
+
+function serializeCode(
+  buffer: Uint8Array,
+  key: string,
+  value: Code,
+  index: number,
+  checkKeys = false,
+  depth = 0,
+  serializeFunctions = false,
+  ignoreUndefined = true,
+  path: Set<Document>
+) {
+  if (value.scope && typeof value.scope === 'object') {
+    // Write the type
+    buffer[index++] = constants.BSON_DATA_CODE_W_SCOPE;
+    // Number of written bytes
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    // Encode the name
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+
+    // Starting index
+    let startIndex = index;
+
+    // Serialize the function
+    // Get the function string
+    const functionString = value.code;
+    // Index adjustment
+    index = index + 4;
+    // Write string into buffer
+    const codeSize = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1;
+    // Write the size of the string to buffer
+    NumberUtils.setInt32LE(buffer, index, codeSize);
+    // Write end 0
+    buffer[index + 4 + codeSize - 1] = 0;
+    // Write the
+    index = index + codeSize + 4;
+
+    // Serialize the scope value
+    const endIndex = serializeInto(
+      buffer,
+      value.scope,
+      checkKeys,
+      index,
+      depth + 1,
+      serializeFunctions,
+      ignoreUndefined,
+      path
+    );
+    index = endIndex - 1;
+
+    // Writ the total
+    const totalSize = endIndex - startIndex;
+
+    // Write the total size of the object
+    startIndex += NumberUtils.setInt32LE(buffer, startIndex, totalSize);
+    // Write trailing zero
+    buffer[index++] = 0;
+  } else {
+    buffer[index++] = constants.BSON_DATA_CODE;
+    // Number of written bytes
+    const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+    // Encode the name
+    index = index + numberOfWrittenBytes;
+    buffer[index++] = 0;
+    // Function string
+    const functionString = value.code.toString();
+    // Write the string
+    const size = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1;
+    // Write the size of the string to buffer
+    NumberUtils.setInt32LE(buffer, index, size);
+    // Update index
+    index = index + 4 + size - 1;
+    // Write zero
+    buffer[index++] = 0;
+  }
+
+  return index;
+}
+
+function serializeBinary(buffer: Uint8Array, key: string, value: Binary, index: number) {
+  // Write the type
+  buffer[index++] = constants.BSON_DATA_BINARY;
+  // Number of written bytes
+  const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+  // Encode the name
+  index = index + numberOfWrittenBytes;
+  buffer[index++] = 0;
+  // Extract the buffer
+  const data = value.buffer;
+  // Calculate size
+  let size = value.position;
+  // Add the deprecated 02 type 4 bytes of size to total
+  if (value.sub_type === Binary.SUBTYPE_BYTE_ARRAY) size = size + 4;
+  // Write the size of the string to buffer
+  index += NumberUtils.setInt32LE(buffer, index, size);
+  // Write the subtype to the buffer
+  buffer[index++] = value.sub_type;
+
+  // If we have binary type 2 the 4 first bytes are the size
+  if (value.sub_type === Binary.SUBTYPE_BYTE_ARRAY) {
+    size = size - 4;
+    index += NumberUtils.setInt32LE(buffer, index, size);
+  }
+
+  if (value.sub_type === Binary.SUBTYPE_VECTOR) {
+    validateBinaryVector(value);
+  }
+
+  if (size <= 16) {
+    for (let i = 0; i < size; i++) buffer[index + i] = data[i];
+  } else {
+    buffer.set(data, index);
+  }
+  // Adjust the index
+  index = index + value.position;
+  return index;
+}
+
+function serializeSymbol(buffer: Uint8Array, key: string, value: BSONSymbol, index: number) {
+  // Write the type
+  buffer[index++] = constants.BSON_DATA_SYMBOL;
+  // Number of written bytes
+  const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+  // Encode the name
+  index = index + numberOfWrittenBytes;
+  buffer[index++] = 0;
+  // Write the string
+  const size = ByteUtils.encodeUTF8Into(buffer, value.value, index + 4) + 1;
+  // Write the size of the string to buffer
+  NumberUtils.setInt32LE(buffer, index, size);
+  // Update index
+  index = index + 4 + size - 1;
+  // Write zero
+  buffer[index++] = 0;
+  return index;
+}
+
+function serializeDBRef(
+  buffer: Uint8Array,
+  key: string,
+  value: DBRef,
+  index: number,
+  depth: number,
+  serializeFunctions: boolean,
+  path: Set<Document>
+) {
+  // Write the type
+  buffer[index++] = constants.BSON_DATA_OBJECT;
+  // Number of written bytes
+  const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index);
+
+  // Encode the name
+  index = index + numberOfWrittenBytes;
+  buffer[index++] = 0;
+
+  let startIndex = index;
+  let output: DBRefLike = {
+    $ref: value.collection || value.namespace, // "namespace" was what library 1.x called "collection"
+    $id: value.oid
+  };
+
+  if (value.db != null) {
+    output.$db = value.db;
+  }
+
+  output = Object.assign(output, value.fields);
+  const endIndex = serializeInto(
+    buffer,
+    output,
+    false,
+    index,
+    depth + 1,
+    serializeFunctions,
+    true,
+    path
+  );
+
+  // Calculate object size
+  const size = endIndex - startIndex;
+  // Write the size
+  startIndex += NumberUtils.setInt32LE(buffer, index, size);
+  // Set index
+  return endIndex;
+}
+
+export function serializeInto(
+  buffer: Uint8Array,
+  object: Document,
+  checkKeys: boolean,
+  startingIndex: number,
+  depth: number,
+  serializeFunctions: boolean,
+  ignoreUndefined: boolean,
+  path: Set<Document> | null
+): number {
+  if (path == null) {
+    // We are at the root input
+    if (object == null) {
+      // ONLY the root should turn into an empty document
+      // BSON Empty document has a size of 5 (LE)
+      buffer[0] = 0x05;
+      buffer[1] = 0x00;
+      buffer[2] = 0x00;
+      buffer[3] = 0x00;
+      // All documents end with null terminator
+      buffer[4] = 0x00;
+      return 5;
+    }
+
+    if (Array.isArray(object)) {
+      throw new BSONError('serialize does not support an array as the root input');
+    }
+    if (typeof object !== 'object') {
+      throw new BSONError('serialize does not support non-object as the root input');
+    } else if ('_bsontype' in object && typeof object._bsontype === 'string') {
+      throw new BSONError(`BSON types cannot be serialized as a document`);
+    } else if (
+      isDate(object) ||
+      isRegExp(object) ||
+      isUint8Array(object) ||
+      isAnyArrayBuffer(object)
+    ) {
+      throw new BSONError(`date, regexp, typedarray, and arraybuffer cannot be BSON documents`);
+    }
+
+    path = new Set();
+  }
+
+  // Push the object to the path
+  path.add(object);
+
+  // Start place to serialize into
+  let index = startingIndex + 4;
+
+  // Special case isArray
+  if (Array.isArray(object)) {
+    // Get object keys
+    for (let i = 0; i < object.length; i++) {
+      const key = `${i}`;
+      let value = object[i];
+
+      // Is there an override value
+      if (typeof value?.toBSON === 'function') {
+        value = value.toBSON();
+      }
+
+      // Check the type of the value
+      const type = typeof value;
+
+      if (value === undefined) {
+        index = serializeNull(buffer, key, value, index);
+      } else if (value === null) {
+        index = serializeNull(buffer, key, value, index);
+      } else if (type === 'string') {
+        index = serializeString(buffer, key, value, index);
+      } else if (type === 'number') {
+        index = serializeNumber(buffer, key, value, index);
+      } else if (type === 'bigint') {
+        index = serializeBigInt(buffer, key, value, index);
+      } else if (type === 'boolean') {
+        index = serializeBoolean(buffer, key, value, index);
+      } else if (type === 'object' && value._bsontype == null) {
+        if (value instanceof Date || isDate(value)) {
+          index = serializeDate(buffer, key, value, index);
+        } else if (value instanceof Uint8Array || isUint8Array(value)) {
+          index = serializeBuffer(buffer, key, value, index);
+        } else if (value instanceof RegExp || isRegExp(value)) {
+          index = serializeRegExp(buffer, key, value, index);
+        } else {
+          index = serializeObject(
+            buffer,
+            key,
+            value,
+            index,
+            checkKeys,
+            depth,
+            serializeFunctions,
+            ignoreUndefined,
+            path
+          );
+        }
+      } else if (type === 'object') {
+        if (value[constants.BSON_VERSION_SYMBOL] !== constants.BSON_MAJOR_VERSION) {
+          throw new BSONVersionError();
+        } else if (value._bsontype === 'ObjectId') {
+          index = serializeObjectId(buffer, key, value, index);
+        } else if (value._bsontype === 'Decimal128') {
+          index = serializeDecimal128(buffer, key, value, index);
+        } else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') {
+          index = serializeLong(buffer, key, value, index);
+        } else if (value._bsontype === 'Double') {
+          index = serializeDouble(buffer, key, value, index);
+        } else if (value._bsontype === 'Code') {
+          index = serializeCode(
+            buffer,
+            key,
+            value,
+            index,
+            checkKeys,
+            depth,
+            serializeFunctions,
+            ignoreUndefined,
+            path
+          );
+        } else if (value._bsontype === 'Binary') {
+          index = serializeBinary(buffer, key, value, index);
+        } else if (value._bsontype === 'BSONSymbol') {
+          index = serializeSymbol(buffer, key, value, index);
+        } else if (value._bsontype === 'DBRef') {
+          index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path);
+        } else if (value._bsontype === 'BSONRegExp') {
+          index = serializeBSONRegExp(buffer, key, value, index);
+        } else if (value._bsontype === 'Int32') {
+          index = serializeInt32(buffer, key, value, index);
+        } else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') {
+          index = serializeMinMax(buffer, key, value, index);
+        } else if (typeof value._bsontype !== 'undefined') {
+          throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`);
+        }
+      } else if (type === 'function' && serializeFunctions) {
+        index = serializeFunction(buffer, key, value, index);
+      }
+    }
+  } else if (object instanceof Map || isMap(object)) {
+    const iterator = object.entries();
+    let done = false;
+
+    while (!done) {
+      // Unpack the next entry
+      const entry = iterator.next();
+      done = !!entry.done;
+      // Are we done, then skip and terminate
+      if (done) continue;
+
+      // Get the entry values
+      const key = entry.value[0];
+      let value = entry.value[1];
+
+      if (typeof value?.toBSON === 'function') {
+        value = value.toBSON();
+      }
+
+      // Check the type of the value
+      const type = typeof value;
+
+      // Check the key and throw error if it's illegal
+      if (typeof key === 'string' && !ignoreKeys.has(key)) {
+        if (key.match(regexp) != null) {
+          // The BSON spec doesn't allow keys with null bytes because keys are
+          // null-terminated.
+          throw new BSONError('key ' + key + ' must not contain null bytes');
+        }
+
+        if (checkKeys) {
+          if ('$' === key[0]) {
+            throw new BSONError('key ' + key + " must not start with '$'");
+          } else if (key.includes('.')) {
+            throw new BSONError('key ' + key + " must not contain '.'");
+          }
+        }
+      }
+
+      if (value === undefined) {
+        if (ignoreUndefined === false) index = serializeNull(buffer, key, value, index);
+      } else if (value === null) {
+        index = serializeNull(buffer, key, value, index);
+      } else if (type === 'string') {
+        index = serializeString(buffer, key, value, index);
+      } else if (type === 'number') {
+        index = serializeNumber(buffer, key, value, index);
+      } else if (type === 'bigint') {
+        index = serializeBigInt(buffer, key, value, index);
+      } else if (type === 'boolean') {
+        index = serializeBoolean(buffer, key, value, index);
+      } else if (type === 'object' && value._bsontype == null) {
+        if (value instanceof Date || isDate(value)) {
+          index = serializeDate(buffer, key, value, index);
+        } else if (value instanceof Uint8Array || isUint8Array(value)) {
+          index = serializeBuffer(buffer, key, value, index);
+        } else if (value instanceof RegExp || isRegExp(value)) {
+          index = serializeRegExp(buffer, key, value, index);
+        } else {
+          index = serializeObject(
+            buffer,
+            key,
+            value,
+            index,
+            checkKeys,
+            depth,
+            serializeFunctions,
+            ignoreUndefined,
+            path
+          );
+        }
+      } else if (type === 'object') {
+        if (value[constants.BSON_VERSION_SYMBOL] !== constants.BSON_MAJOR_VERSION) {
+          throw new BSONVersionError();
+        } else if (value._bsontype === 'ObjectId') {
+          index = serializeObjectId(buffer, key, value, index);
+        } else if (value._bsontype === 'Decimal128') {
+          index = serializeDecimal128(buffer, key, value, index);
+        } else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') {
+          index = serializeLong(buffer, key, value, index);
+        } else if (value._bsontype === 'Double') {
+          index = serializeDouble(buffer, key, value, index);
+        } else if (value._bsontype === 'Code') {
+          index = serializeCode(
+            buffer,
+            key,
+            value,
+            index,
+            checkKeys,
+            depth,
+            serializeFunctions,
+            ignoreUndefined,
+            path
+          );
+        } else if (value._bsontype === 'Binary') {
+          index = serializeBinary(buffer, key, value, index);
+        } else if (value._bsontype === 'BSONSymbol') {
+          index = serializeSymbol(buffer, key, value, index);
+        } else if (value._bsontype === 'DBRef') {
+          index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path);
+        } else if (value._bsontype === 'BSONRegExp') {
+          index = serializeBSONRegExp(buffer, key, value, index);
+        } else if (value._bsontype === 'Int32') {
+          index = serializeInt32(buffer, key, value, index);
+        } else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') {
+          index = serializeMinMax(buffer, key, value, index);
+        } else if (typeof value._bsontype !== 'undefined') {
+          throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`);
+        }
+      } else if (type === 'function' && serializeFunctions) {
+        index = serializeFunction(buffer, key, value, index);
+      }
+    }
+  } else {
+    if (typeof object?.toBSON === 'function') {
+      // Provided a custom serialization method
+      object = object.toBSON();
+      if (object != null && typeof object !== 'object') {
+        throw new BSONError('toBSON function did not return an object');
+      }
+    }
+
+    // Iterate over all the keys
+    for (const key of Object.keys(object)) {
+      let value = object[key];
+      // Is there an override value
+      if (typeof value?.toBSON === 'function') {
+        value = value.toBSON();
+      }
+
+      // Check the type of the value
+      const type = typeof value;
+
+      // Check the key and throw error if it's illegal
+      if (typeof key === 'string' && !ignoreKeys.has(key)) {
+        if (key.match(regexp) != null) {
+          // The BSON spec doesn't allow keys with null bytes because keys are
+          // null-terminated.
+          throw new BSONError('key ' + key + ' must not contain null bytes');
+        }
+
+        if (checkKeys) {
+          if ('$' === key[0]) {
+            throw new BSONError('key ' + key + " must not start with '$'");
+          } else if (key.includes('.')) {
+            throw new BSONError('key ' + key + " must not contain '.'");
+          }
+        }
+      }
+
+      if (value === undefined) {
+        if (ignoreUndefined === false) index = serializeNull(buffer, key, value, index);
+      } else if (value === null) {
+        index = serializeNull(buffer, key, value, index);
+      } else if (type === 'string') {
+        index = serializeString(buffer, key, value, index);
+      } else if (type === 'number') {
+        index = serializeNumber(buffer, key, value, index);
+      } else if (type === 'bigint') {
+        index = serializeBigInt(buffer, key, value, index);
+      } else if (type === 'boolean') {
+        index = serializeBoolean(buffer, key, value, index);
+      } else if (type === 'object' && value._bsontype == null) {
+        if (value instanceof Date || isDate(value)) {
+          index = serializeDate(buffer, key, value, index);
+        } else if (value instanceof Uint8Array || isUint8Array(value)) {
+          index = serializeBuffer(buffer, key, value, index);
+        } else if (value instanceof RegExp || isRegExp(value)) {
+          index = serializeRegExp(buffer, key, value, index);
+        } else {
+          index = serializeObject(
+            buffer,
+            key,
+            value,
+            index,
+            checkKeys,
+            depth,
+            serializeFunctions,
+            ignoreUndefined,
+            path
+          );
+        }
+      } else if (type === 'object') {
+        if (value[constants.BSON_VERSION_SYMBOL] !== constants.BSON_MAJOR_VERSION) {
+          throw new BSONVersionError();
+        } else if (value._bsontype === 'ObjectId') {
+          index = serializeObjectId(buffer, key, value, index);
+        } else if (value._bsontype === 'Decimal128') {
+          index = serializeDecimal128(buffer, key, value, index);
+        } else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') {
+          index = serializeLong(buffer, key, value, index);
+        } else if (value._bsontype === 'Double') {
+          index = serializeDouble(buffer, key, value, index);
+        } else if (value._bsontype === 'Code') {
+          index = serializeCode(
+            buffer,
+            key,
+            value,
+            index,
+            checkKeys,
+            depth,
+            serializeFunctions,
+            ignoreUndefined,
+            path
+          );
+        } else if (value._bsontype === 'Binary') {
+          index = serializeBinary(buffer, key, value, index);
+        } else if (value._bsontype === 'BSONSymbol') {
+          index = serializeSymbol(buffer, key, value, index);
+        } else if (value._bsontype === 'DBRef') {
+          index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path);
+        } else if (value._bsontype === 'BSONRegExp') {
+          index = serializeBSONRegExp(buffer, key, value, index);
+        } else if (value._bsontype === 'Int32') {
+          index = serializeInt32(buffer, key, value, index);
+        } else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') {
+          index = serializeMinMax(buffer, key, value, index);
+        } else if (typeof value._bsontype !== 'undefined') {
+          throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`);
+        }
+      } else if (type === 'function' && serializeFunctions) {
+        index = serializeFunction(buffer, key, value, index);
+      }
+    }
+  }
+
+  // Remove the path
+  path.delete(object);
+
+  // Final padding byte for object
+  buffer[index++] = 0x00;
+
+  // Final size
+  const size = index - startingIndex;
+  // Write the size of the object
+  startingIndex += NumberUtils.setInt32LE(buffer, startingIndex, size);
+  return index;
+}
diff --git a/backend/node_modules/bson/src/parser/utils.ts b/backend/node_modules/bson/src/parser/utils.ts
new file mode 100644
index 0000000..2e38399
--- /dev/null
+++ b/backend/node_modules/bson/src/parser/utils.ts
@@ -0,0 +1,69 @@
+const TypedArrayPrototypeGetSymbolToStringTag = (() => {
+  // Type check system lovingly referenced from:
+  // https://github.com/nodejs/node/blob/7450332339ed40481f470df2a3014e2ec355d8d8/lib/internal/util/types.js#L13-L15
+  // eslint-disable-next-line @typescript-eslint/unbound-method -- the intention is to call this method with a bound value
+  const g = Object.getOwnPropertyDescriptor(
+    Object.getPrototypeOf(Uint8Array.prototype),
+    Symbol.toStringTag
+  )!.get!;
+
+  return (value: unknown) => g.call(value);
+})();
+
+export function isUint8Array(value: unknown): value is Uint8Array {
+  return TypedArrayPrototypeGetSymbolToStringTag(value) === 'Uint8Array';
+}
+
+export function isAnyArrayBuffer(value: unknown): value is ArrayBuffer {
+  return (
+    typeof value === 'object' &&
+    value != null &&
+    Symbol.toStringTag in value &&
+    (value[Symbol.toStringTag] === 'ArrayBuffer' ||
+      value[Symbol.toStringTag] === 'SharedArrayBuffer')
+  );
+}
+
+export function isRegExp(regexp: unknown): regexp is RegExp {
+  return regexp instanceof RegExp || Object.prototype.toString.call(regexp) === '[object RegExp]';
+}
+
+export function isMap(value: unknown): value is Map<unknown, unknown> {
+  return (
+    typeof value === 'object' &&
+    value != null &&
+    Symbol.toStringTag in value &&
+    value[Symbol.toStringTag] === 'Map'
+  );
+}
+
+export function isDate(date: unknown): date is Date {
+  return date instanceof Date || Object.prototype.toString.call(date) === '[object Date]';
+}
+
+export type InspectFn = (x: unknown, options?: unknown) => string;
+export function defaultInspect(x: unknown, _options?: unknown): string {
+  return JSON.stringify(x, (k: string, v: unknown) => {
+    if (typeof v === 'bigint') {
+      return { $numberLong: `${v}` };
+    } else if (isMap(v)) {
+      return Object.fromEntries(v);
+    }
+    return v;
+  });
+}
+
+/** @internal */
+type StylizeFunction = (x: string, style: string) => string;
+/** @internal */
+export function getStylizeFunction(options?: unknown): StylizeFunction | undefined {
+  const stylizeExists =
+    options != null &&
+    typeof options === 'object' &&
+    'stylize' in options &&
+    typeof options.stylize === 'function';
+
+  if (stylizeExists) {
+    return options.stylize as StylizeFunction;
+  }
+}
diff --git a/backend/node_modules/bson/src/regexp.ts b/backend/node_modules/bson/src/regexp.ts
new file mode 100644
index 0000000..e401a29
--- /dev/null
+++ b/backend/node_modules/bson/src/regexp.ts
@@ -0,0 +1,114 @@
+import { BSONValue } from './bson_value';
+import { BSONError } from './error';
+import type { EJSONOptions } from './extended_json';
+import { type InspectFn, defaultInspect, getStylizeFunction } from './parser/utils';
+
+function alphabetize(str: string): string {
+  return str.split('').sort().join('');
+}
+
+/** @public */
+export interface BSONRegExpExtendedLegacy {
+  $regex: string | BSONRegExp;
+  $options: string;
+}
+
+/** @public */
+export interface BSONRegExpExtended {
+  $regularExpression: {
+    pattern: string;
+    options: string;
+  };
+}
+
+/**
+ * A class representation of the BSON RegExp type.
+ * @public
+ * @category BSONType
+ */
+export class BSONRegExp extends BSONValue {
+  get _bsontype(): 'BSONRegExp' {
+    return 'BSONRegExp';
+  }
+
+  pattern!: string;
+  options!: string;
+  /**
+   * @param pattern - The regular expression pattern to match
+   * @param options - The regular expression options
+   */
+  constructor(pattern: string, options?: string) {
+    super();
+    this.pattern = pattern;
+    this.options = alphabetize(options ?? '');
+
+    if (this.pattern.indexOf('\x00') !== -1) {
+      throw new BSONError(
+        `BSON Regex patterns cannot contain null bytes, found: ${JSON.stringify(this.pattern)}`
+      );
+    }
+    if (this.options.indexOf('\x00') !== -1) {
+      throw new BSONError(
+        `BSON Regex options cannot contain null bytes, found: ${JSON.stringify(this.options)}`
+      );
+    }
+
+    // Validate options
+    for (let i = 0; i < this.options.length; i++) {
+      if (
+        !(
+          this.options[i] === 'i' ||
+          this.options[i] === 'm' ||
+          this.options[i] === 'x' ||
+          this.options[i] === 'l' ||
+          this.options[i] === 's' ||
+          this.options[i] === 'u'
+        )
+      ) {
+        throw new BSONError(`The regular expression option [${this.options[i]}] is not supported`);
+      }
+    }
+  }
+
+  static parseOptions(options?: string): string {
+    return options ? options.split('').sort().join('') : '';
+  }
+
+  /** @internal */
+  toExtendedJSON(options?: EJSONOptions): BSONRegExpExtendedLegacy | BSONRegExpExtended {
+    options = options || {};
+    if (options.legacy) {
+      return { $regex: this.pattern, $options: this.options };
+    }
+    return { $regularExpression: { pattern: this.pattern, options: this.options } };
+  }
+
+  /** @internal */
+  static fromExtendedJSON(doc: BSONRegExpExtendedLegacy | BSONRegExpExtended): BSONRegExp {
+    if ('$regex' in doc) {
+      if (typeof doc.$regex !== 'string') {
+        // This is for $regex query operators that have extended json values.
+        if (doc.$regex._bsontype === 'BSONRegExp') {
+          return doc as unknown as BSONRegExp;
+        }
+      } else {
+        return new BSONRegExp(doc.$regex, BSONRegExp.parseOptions(doc.$options));
+      }
+    }
+    if ('$regularExpression' in doc) {
+      return new BSONRegExp(
+        doc.$regularExpression.pattern,
+        BSONRegExp.parseOptions(doc.$regularExpression.options)
+      );
+    }
+    throw new BSONError(`Unexpected BSONRegExp EJSON object form: ${JSON.stringify(doc)}`);
+  }
+
+  inspect(depth?: number, options?: unknown, inspect?: InspectFn): string {
+    const stylize = getStylizeFunction(options) ?? (v => v);
+    inspect ??= defaultInspect;
+    const pattern = stylize(inspect(this.pattern), 'regexp');
+    const flags = stylize(inspect(this.options), 'regexp');
+    return `new BSONRegExp(${pattern}, ${flags})`;
+  }
+}
diff --git a/backend/node_modules/bson/src/symbol.ts b/backend/node_modules/bson/src/symbol.ts
new file mode 100644
index 0000000..6835ab9
--- /dev/null
+++ b/backend/node_modules/bson/src/symbol.ts
@@ -0,0 +1,55 @@
+import { BSONValue } from './bson_value';
+import { type InspectFn, defaultInspect } from './parser/utils';
+
+/** @public */
+export interface BSONSymbolExtended {
+  $symbol: string;
+}
+
+/**
+ * A class representation of the BSON Symbol type.
+ * @public
+ * @category BSONType
+ */
+export class BSONSymbol extends BSONValue {
+  get _bsontype(): 'BSONSymbol' {
+    return 'BSONSymbol';
+  }
+
+  value!: string;
+  /**
+   * @param value - the string representing the symbol.
+   */
+  constructor(value: string) {
+    super();
+    this.value = value;
+  }
+
+  /** Access the wrapped string value. */
+  valueOf(): string {
+    return this.value;
+  }
+
+  toString(): string {
+    return this.value;
+  }
+
+  toJSON(): string {
+    return this.value;
+  }
+
+  /** @internal */
+  toExtendedJSON(): BSONSymbolExtended {
+    return { $symbol: this.value };
+  }
+
+  /** @internal */
+  static fromExtendedJSON(doc: BSONSymbolExtended): BSONSymbol {
+    return new BSONSymbol(doc.$symbol);
+  }
+
+  inspect(depth?: number, options?: unknown, inspect?: InspectFn): string {
+    inspect ??= defaultInspect;
+    return `new BSONSymbol(${inspect(this.value, options)})`;
+  }
+}
diff --git a/backend/node_modules/bson/src/timestamp.ts b/backend/node_modules/bson/src/timestamp.ts
new file mode 100644
index 0000000..0cba6f6
--- /dev/null
+++ b/backend/node_modules/bson/src/timestamp.ts
@@ -0,0 +1,167 @@
+import { BSONError } from './error';
+import type { Int32 } from './int_32';
+import { Long } from './long';
+import { type InspectFn, defaultInspect } from './parser/utils';
+
+/** @public */
+export type TimestampOverrides = '_bsontype' | 'toExtendedJSON' | 'fromExtendedJSON' | 'inspect';
+/** @public */
+export type LongWithoutOverrides = new (
+  low: unknown,
+  high?: number | boolean,
+  unsigned?: boolean
+) => {
+  [P in Exclude<keyof Long, TimestampOverrides>]: Long[P];
+};
+/** @public */
+export const LongWithoutOverridesClass: LongWithoutOverrides =
+  Long as unknown as LongWithoutOverrides;
+
+/** @public */
+export interface TimestampExtended {
+  $timestamp: {
+    t: number;
+    i: number;
+  };
+}
+
+/**
+ * @public
+ * @category BSONType
+ *
+ * A special type for _internal_ MongoDB use and is **not** associated with the regular Date type.
+ */
+export class Timestamp extends LongWithoutOverridesClass {
+  get _bsontype(): 'Timestamp' {
+    return 'Timestamp';
+  }
+
+  static readonly MAX_VALUE = Long.MAX_UNSIGNED_VALUE;
+
+  /**
+   * An incrementing ordinal for operations within a given second.
+   */
+  get i(): number {
+    return this.low >>> 0;
+  }
+
+  /**
+   * A `time_t` value measuring seconds since the Unix epoch
+   */
+  get t(): number {
+    return this.high >>> 0;
+  }
+
+  /**
+   * @param int - A 64-bit bigint representing the Timestamp.
+   */
+  constructor(int: bigint);
+  /**
+   * @param long - A 64-bit Long representing the Timestamp.
+   */
+  constructor(long: Long);
+  /**
+   * @param value - A pair of two values indicating timestamp and increment.
+   */
+  constructor(value: { t: number; i: number });
+  constructor(low?: bigint | Long | { t: number | Int32; i: number | Int32 }) {
+    if (low == null) {
+      super(0, 0, true);
+    } else if (typeof low === 'bigint') {
+      super(low, true);
+    } else if (Long.isLong(low)) {
+      super(low.low, low.high, true);
+    } else if (typeof low === 'object' && 't' in low && 'i' in low) {
+      if (typeof low.t !== 'number' && (typeof low.t !== 'object' || low.t._bsontype !== 'Int32')) {
+        throw new BSONError('Timestamp constructed from { t, i } must provide t as a number');
+      }
+      if (typeof low.i !== 'number' && (typeof low.i !== 'object' || low.i._bsontype !== 'Int32')) {
+        throw new BSONError('Timestamp constructed from { t, i } must provide i as a number');
+      }
+      const t = Number(low.t);
+      const i = Number(low.i);
+      if (t < 0 || Number.isNaN(t)) {
+        throw new BSONError('Timestamp constructed from { t, i } must provide a positive t');
+      }
+      if (i < 0 || Number.isNaN(i)) {
+        throw new BSONError('Timestamp constructed from { t, i } must provide a positive i');
+      }
+      if (t > 0xffff_ffff) {
+        throw new BSONError(
+          'Timestamp constructed from { t, i } must provide t equal or less than uint32 max'
+        );
+      }
+      if (i > 0xffff_ffff) {
+        throw new BSONError(
+          'Timestamp constructed from { t, i } must provide i equal or less than uint32 max'
+        );
+      }
+
+      super(i, t, true);
+    } else {
+      throw new BSONError(
+        'A Timestamp can only be constructed with: bigint, Long, or { t: number; i: number }'
+      );
+    }
+  }
+
+  toJSON(): { $timestamp: string } {
+    return {
+      $timestamp: this.toString()
+    };
+  }
+
+  /** Returns a Timestamp represented by the given (32-bit) integer value. */
+  static fromInt(value: number): Timestamp {
+    return new Timestamp(Long.fromInt(value, true));
+  }
+
+  /** Returns a Timestamp representing the given number value, provided that it is a finite number. Otherwise, zero is returned. */
+  static fromNumber(value: number): Timestamp {
+    return new Timestamp(Long.fromNumber(value, true));
+  }
+
+  /**
+   * Returns a Timestamp for the given high and low bits. Each is assumed to use 32 bits.
+   *
+   * @param lowBits - the low 32-bits.
+   * @param highBits - the high 32-bits.
+   */
+  static fromBits(lowBits: number, highBits: number): Timestamp {
+    return new Timestamp({ i: lowBits, t: highBits });
+  }
+
+  /**
+   * Returns a Timestamp from the given string, optionally using the given radix.
+   *
+   * @param str - the textual representation of the Timestamp.
+   * @param optRadix - the radix in which the text is written.
+   */
+  static fromString(str: string, optRadix: number): Timestamp {
+    return new Timestamp(Long.fromString(str, true, optRadix));
+  }
+
+  /** @internal */
+  toExtendedJSON(): TimestampExtended {
+    return { $timestamp: { t: this.t, i: this.i } };
+  }
+
+  /** @internal */
+  static fromExtendedJSON(doc: TimestampExtended): Timestamp {
+    // The Long check is necessary because extended JSON has different behavior given the size of the input number
+    const i = Long.isLong(doc.$timestamp.i)
+      ? doc.$timestamp.i.getLowBitsUnsigned() // Need to fetch the least significant 32 bits
+      : doc.$timestamp.i;
+    const t = Long.isLong(doc.$timestamp.t)
+      ? doc.$timestamp.t.getLowBitsUnsigned() // Need to fetch the least significant 32 bits
+      : doc.$timestamp.t;
+    return new Timestamp({ t, i });
+  }
+
+  inspect(depth?: number, options?: unknown, inspect?: InspectFn): string {
+    inspect ??= defaultInspect;
+    const t = inspect(this.t, options);
+    const i = inspect(this.i, options);
+    return `new Timestamp({ t: ${t}, i: ${i} })`;
+  }
+}
diff --git a/backend/node_modules/bson/src/utils/byte_utils.ts b/backend/node_modules/bson/src/utils/byte_utils.ts
new file mode 100644
index 0000000..05e3051
--- /dev/null
+++ b/backend/node_modules/bson/src/utils/byte_utils.ts
@@ -0,0 +1,63 @@
+import { nodeJsByteUtils } from './node_byte_utils';
+import { webByteUtils } from './web_byte_utils';
+
+/**
+ * @public
+ * @experimental
+ *
+ * A collection of functions that help work with data in a Uint8Array.
+ * ByteUtils is configured at load time to use Node.js or Web based APIs for the internal implementations.
+ */
+export type ByteUtils = {
+  /** Transforms the input to an instance of Buffer if running on node, otherwise Uint8Array */
+  toLocalBufferType: (buffer: Uint8Array | ArrayBufferView | ArrayBuffer) => Uint8Array;
+  /** Create empty space of size */
+  allocate: (size: number) => Uint8Array;
+  /** Create empty space of size, use pooled memory when available */
+  allocateUnsafe: (size: number) => Uint8Array;
+  /** Check if two Uint8Arrays are deep equal */
+  equals: (a: Uint8Array, b: Uint8Array) => boolean;
+  /** Check if two Uint8Arrays are deep equal */
+  fromNumberArray: (array: number[]) => Uint8Array;
+  /** Create a Uint8Array from a base64 string */
+  fromBase64: (base64: string) => Uint8Array;
+  /** Create a base64 string from bytes */
+  toBase64: (buffer: Uint8Array) => string;
+  /** **Legacy** binary strings are an outdated method of data transfer. Do not add public API support for interpreting this format */
+  fromISO88591: (codePoints: string) => Uint8Array;
+  /** **Legacy** binary strings are an outdated method of data transfer. Do not add public API support for interpreting this format */
+  toISO88591: (buffer: Uint8Array) => string;
+  /** Create a Uint8Array from a hex string */
+  fromHex: (hex: string) => Uint8Array;
+  /** Create a lowercase hex string from bytes */
+  toHex: (buffer: Uint8Array) => string;
+  /** Create a string from utf8 code units, fatal=true will throw an error if UTF-8 bytes are invalid, fatal=false will insert replacement characters */
+  toUTF8: (buffer: Uint8Array, start: number, end: number, fatal: boolean) => string;
+  /** Get the utf8 code unit count from a string if it were to be transformed to utf8 */
+  utf8ByteLength: (input: string) => number;
+  /** Encode UTF8 bytes generated from `source` string into `destination` at byteOffset. Returns the number of bytes encoded. */
+  encodeUTF8Into: (destination: Uint8Array, source: string, byteOffset: number) => number;
+  /** Generate a Uint8Array filled with random bytes with byteLength */
+  randomBytes: (byteLength: number) => Uint8Array;
+  /** Interprets `buffer` as an array of 32-bit values and swaps the byte order in-place. */
+  swap32: (buffer: Uint8Array) => Uint8Array;
+};
+
+declare const Buffer: { new (): unknown; prototype?: { _isBuffer?: boolean } } | undefined;
+
+/**
+ * Check that a global Buffer exists that is a function and
+ * does not have a '_isBuffer' property defined on the prototype
+ * (this is to prevent using the npm buffer)
+ */
+const hasGlobalBuffer = typeof Buffer === 'function' && Buffer.prototype?._isBuffer !== true;
+
+/**
+ * This is the only ByteUtils that should be used across the rest of the BSON library.
+ *
+ * The type annotation is important here, it asserts that each of the platform specific
+ * utils implementations are compatible with the common one.
+ *
+ * @internal
+ */
+export const ByteUtils: ByteUtils = hasGlobalBuffer ? nodeJsByteUtils : webByteUtils;
diff --git a/backend/node_modules/bson/src/utils/latin.ts b/backend/node_modules/bson/src/utils/latin.ts
new file mode 100644
index 0000000..5dd5c91
--- /dev/null
+++ b/backend/node_modules/bson/src/utils/latin.ts
@@ -0,0 +1,104 @@
+/**
+ * This function is an optimization for small basic latin strings.
+ * @internal
+ * @remarks
+ * ### Important characteristics:
+ * - If the uint8array or distance between start and end is 0 this function returns an empty string
+ * - If the byteLength of the string is 1, 2, or 3 we invoke String.fromCharCode and manually offset into the buffer
+ * - If the byteLength of the string is less than or equal to 20 an array of bytes is built and `String.fromCharCode.apply` is called with the result
+ * - If any byte exceeds 128 this function returns null
+ *
+ * @param uint8array - A sequence of bytes that may contain basic latin characters
+ * @param start - The start index from which to search the uint8array
+ * @param end - The index to stop searching the uint8array
+ * @returns string if all bytes are within the basic latin range, otherwise null
+ */
+export function tryReadBasicLatin(
+  uint8array: Uint8Array,
+  start: number,
+  end: number
+): string | null {
+  if (uint8array.length === 0) {
+    return '';
+  }
+
+  const stringByteLength = end - start;
+  if (stringByteLength === 0) {
+    return '';
+  }
+
+  if (stringByteLength > 20) {
+    return null;
+  }
+
+  if (stringByteLength === 1 && uint8array[start] < 128) {
+    return String.fromCharCode(uint8array[start]);
+  }
+
+  if (stringByteLength === 2 && uint8array[start] < 128 && uint8array[start + 1] < 128) {
+    return String.fromCharCode(uint8array[start]) + String.fromCharCode(uint8array[start + 1]);
+  }
+
+  if (
+    stringByteLength === 3 &&
+    uint8array[start] < 128 &&
+    uint8array[start + 1] < 128 &&
+    uint8array[start + 2] < 128
+  ) {
+    return (
+      String.fromCharCode(uint8array[start]) +
+      String.fromCharCode(uint8array[start + 1]) +
+      String.fromCharCode(uint8array[start + 2])
+    );
+  }
+
+  const latinBytes = [];
+  for (let i = start; i < end; i++) {
+    const byte = uint8array[i];
+    if (byte > 127) {
+      return null;
+    }
+    latinBytes.push(byte);
+  }
+
+  return String.fromCharCode(...latinBytes);
+}
+
+/**
+ * This function is an optimization for writing small basic latin strings.
+ * @internal
+ * @remarks
+ * ### Important characteristics:
+ * - If the string length is 0 return 0, do not perform any work
+ * - If a string is longer than 25 code units return null
+ * - If any code unit exceeds 128 this function returns null
+ *
+ * @param destination - The uint8array to serialize the string to
+ * @param source - The string to turn into UTF-8 bytes if it fits in the basic latin range
+ * @param offset - The position in the destination to begin writing bytes to
+ * @returns the number of bytes written to destination if all code units are below 128, otherwise null
+ */
+export function tryWriteBasicLatin(
+  destination: Uint8Array,
+  source: string,
+  offset: number
+): number | null {
+  if (source.length === 0) return 0;
+
+  if (source.length > 25) return null;
+
+  if (destination.length - offset < source.length) return null;
+
+  for (
+    let charOffset = 0, destinationOffset = offset;
+    charOffset < source.length;
+    charOffset++, destinationOffset++
+  ) {
+    const char = source.charCodeAt(charOffset);
+    if (char > 127) return null;
+
+    destination[destinationOffset] = char;
+  }
+
+  return source.length;
+}
diff --git a/backend/node_modules/bson/src/utils/node_byte_utils.ts b/backend/node_modules/bson/src/utils/node_byte_utils.ts
new file mode 100644
index 0000000..b47e723
--- /dev/null
+++ b/backend/node_modules/bson/src/utils/node_byte_utils.ts
@@ -0,0 +1,168 @@
+import { BSONError } from '../error';
+import { parseUtf8 } from '../parse_utf8';
+import { tryReadBasicLatin, tryWriteBasicLatin } from './latin';
+
+type NodeJsEncoding = 'base64' | 'hex' | 'utf8' | 'binary';
+type NodeJsBuffer = ArrayBufferView &
+  Uint8Array & {
+    write(string: string, offset: number, length: undefined, encoding: 'utf8'): number;
+    copy(target: Uint8Array, targetStart: number, sourceStart: number, sourceEnd: number): number;
+    toString: (this: Uint8Array, encoding: NodeJsEncoding, start?: number, end?: number) => string;
+    equals: (this: Uint8Array, other: Uint8Array) => boolean;
+    swap32: (this: NodeJsBuffer) => NodeJsBuffer;
+  };
+type NodeJsBufferConstructor = Omit<Uint8ArrayConstructor, 'from'> & {
+  alloc: (size: number) => NodeJsBuffer;
+  allocUnsafe: (size: number) => NodeJsBuffer;
+  from(array: number[]): NodeJsBuffer;
+  from(array: Uint8Array): NodeJsBuffer;
+  from(array: ArrayBuffer): NodeJsBuffer;
+  from(array: ArrayBuffer, byteOffset: number, byteLength: number): NodeJsBuffer;
+  from(base64: string, encoding: NodeJsEncoding): NodeJsBuffer;
+  byteLength(input: string, encoding: 'utf8'): number;
+  isBuffer(value: unknown): value is NodeJsBuffer;
+};
+
+// This can be nullish, but we gate the nodejs functions on being exported whether or not this exists
+// Node.js global
+declare const Buffer: NodeJsBufferConstructor;
+declare const require: (mod: 'crypto') => { randomBytes: (byteLength: number) => Uint8Array };
+
+/** @internal */
+export function nodejsMathRandomBytes(byteLength: number) {
+  return nodeJsByteUtils.fromNumberArray(
+    Array.from({ length: byteLength }, () => Math.floor(Math.random() * 256))
+  );
+}
+
+/**
+ * @internal
+ * WARNING: REQUIRE WILL BE REWRITTEN
+ *
+ * This code is carefully used by require_rewriter.mjs any modifications must be reflected in the plugin.
+ *
+ * @remarks
+ * "crypto" is the only dependency BSON needs. This presents a problem for creating a bundle of the BSON library
+ * in an es module format that can be used both on the browser and in Node.js. In Node.js when BSON is imported as
+ * an es module, there will be no global require function defined, making the code below fallback to the much less desireable math.random bytes.
+ * In order to make our es module bundle work as expected on Node.js we need to change this `require()` to a dynamic import, and the dynamic
+ * import must be top-level awaited since es modules are async. So we rely on a custom rollup plugin to seek out the following lines of code
+ * and replace `require` with `await import` and the IIFE line (`nodejsRandomBytes = (() => { ... })()`) with `nodejsRandomBytes = await (async () => { ... })()`
+ * when generating an es module bundle.
+ */
+const nodejsRandomBytes: (byteLength: number) => Uint8Array = (() => {
+  try {
+    return require('crypto').randomBytes;
+  } catch {
+    return nodejsMathRandomBytes;
+  }
+})();
+
+/** @internal */
+export const nodeJsByteUtils = {
+  toLocalBufferType(potentialBuffer: Uint8Array | NodeJsBuffer | ArrayBuffer): NodeJsBuffer {
+    if (Buffer.isBuffer(potentialBuffer)) {
+      return potentialBuffer;
+    }
+
+    if (ArrayBuffer.isView(potentialBuffer)) {
+      return Buffer.from(
+        potentialBuffer.buffer,
+        potentialBuffer.byteOffset,
+        potentialBuffer.byteLength
+      );
+    }
+
+    const stringTag =
+      potentialBuffer?.[Symbol.toStringTag] ?? Object.prototype.toString.call(potentialBuffer);
+    if (
+      stringTag === 'ArrayBuffer' ||
+      stringTag === 'SharedArrayBuffer' ||
+      stringTag === '[object ArrayBuffer]' ||
+      stringTag === '[object SharedArrayBuffer]'
+    ) {
+      return Buffer.from(potentialBuffer);
+    }
+
+    throw new BSONError(`Cannot create Buffer from the passed potentialBuffer.`);
+  },
+
+  allocate(size: number): NodeJsBuffer {
+    return Buffer.alloc(size);
+  },
+
+  allocateUnsafe(size: number): NodeJsBuffer {
+    return Buffer.allocUnsafe(size);
+  },
+
+  equals(a: Uint8Array, b: Uint8Array): boolean {
+    return nodeJsByteUtils.toLocalBufferType(a).equals(b);
+  },
+
+  fromNumberArray(array: number[]): NodeJsBuffer {
+    return Buffer.from(array);
+  },
+
+  fromBase64(base64: string): NodeJsBuffer {
+    return Buffer.from(base64, 'base64');
+  },
+
+  toBase64(buffer: Uint8Array): string {
+    return nodeJsByteUtils.toLocalBufferType(buffer).toString('base64');
+  },
+
+  /** **Legacy** binary strings are an outdated method of data transfer. Do not add public API support for interpreting this format */
+  fromISO88591(codePoints: string): NodeJsBuffer {
+    return Buffer.from(codePoints, 'binary');
+  },
+
+  /** **Legacy** binary strings are an outdated method of data transfer. Do not add public API support for interpreting this format */
+  toISO88591(buffer: Uint8Array): string {
+    return nodeJsByteUtils.toLocalBufferType(buffer).toString('binary');
+  },
+
+  fromHex(hex: string): NodeJsBuffer {
+    return Buffer.from(hex, 'hex');
+  },
+
+  toHex(buffer: Uint8Array): string {
+    return nodeJsByteUtils.toLocalBufferType(buffer).toString('hex');
+  },
+
+  toUTF8(buffer: Uint8Array, start: number, end: number, fatal: boolean): string {
+    const basicLatin = end - start <= 20 ? tryReadBasicLatin(buffer, start, end) : null;
+    if (basicLatin != null) {
+      return basicLatin;
+    }
+
+    const string = nodeJsByteUtils.toLocalBufferType(buffer).toString('utf8', start, end);
+    if (fatal) {
+      for (let i = 0; i < string.length; i++) {
+        if (string.charCodeAt(i) === 0xfffd) {
+          parseUtf8(buffer, start, end, true);
+          break;
+        }
+      }
+    }
+    return string;
+  },
+
+  utf8ByteLength(input: string): number {
+    return Buffer.byteLength(input, 'utf8');
+  },
+
+  encodeUTF8Into(buffer: Uint8Array, source: string, byteOffset: number): number {
+    const latinBytesWritten = tryWriteBasicLatin(buffer, source, byteOffset);
+    if (latinBytesWritten != null) {
+      return latinBytesWritten;
+    }
+
+    return nodeJsByteUtils.toLocalBufferType(buffer).write(source, byteOffset, undefined, 'utf8');
+  },
+
+  randomBytes: nodejsRandomBytes,
+
+  swap32(buffer: Uint8Array): NodeJsBuffer {
+    return nodeJsByteUtils.toLocalBufferType(buffer).swap32();
+  }
+};
diff --git a/backend/node_modules/bson/src/utils/number_utils.ts b/backend/node_modules/bson/src/utils/number_utils.ts
new file mode 100644
index 0000000..02f4dbe
--- /dev/null
+++ b/backend/node_modules/bson/src/utils/number_utils.ts
@@ -0,0 +1,204 @@
+const FLOAT = new Float64Array(1);
+const FLOAT_BYTES = new Uint8Array(FLOAT.buffer, 0, 8);
+
+FLOAT[0] = -1;
+// Little endian [0, 0, 0, 0, 0, 0,  240, 191]
+// Big endian    [191, 240, 0, 0, 0, 0, 0, 0]
+const isBigEndian = FLOAT_BYTES[7] === 0;
+
+/**
+ * @experimental
+ * @public
+ *
+ * A collection of functions that get or set various numeric types and bit widths from a Uint8Array.
+ */
+export type NumberUtils = {
+  /** Is true if the current system is big endian. */
+  isBigEndian: boolean;
+  /**
+   * Parses a signed int32 at offset. Throws a `RangeError` if value is negative.
+   */
+  getNonnegativeInt32LE: (source: Uint8Array, offset: number) => number;
+  getInt32LE: (source: Uint8Array, offset: number) => number;
+  getUint32LE: (source: Uint8Array, offset: number) => number;
+  getUint32BE: (source: Uint8Array, offset: number) => number;
+  getBigInt64LE: (source: Uint8Array, offset: number) => bigint;
+  getFloat64LE: (source: Uint8Array, offset: number) => number;
+  setInt32BE: (destination: Uint8Array, offset: number, value: number) => 4;
+  setInt32LE: (destination: Uint8Array, offset: number, value: number) => 4;
+  setBigInt64LE: (destination: Uint8Array, offset: number, value: bigint) => 8;
+  setFloat64LE: (destination: Uint8Array, offset: number, value: number) => 8;
+};
+
+/**
+ * Number parsing and serializing utilities.
+ *
+ * @experimental
+ * @public
+ */
+export const NumberUtils: NumberUtils = {
+  isBigEndian,
+
+  getNonnegativeInt32LE(source: Uint8Array, offset: number): number {
+    if (source[offset + 3] > 127) {
+      throw new RangeError(`Size cannot be negative at offset: ${offset}`);
+    }
+    return (
+      source[offset] |
+      (source[offset + 1] << 8) |
+      (source[offset + 2] << 16) |
+      (source[offset + 3] << 24)
+    );
+  },
+
+  /** Reads a little-endian 32-bit integer from source */
+  getInt32LE(source: Uint8Array, offset: number): number {
+    return (
+      source[offset] |
+      (source[offset + 1] << 8) |
+      (source[offset + 2] << 16) |
+      (source[offset + 3] << 24)
+    );
+  },
+
+  /** Reads a little-endian 32-bit unsigned integer from source */
+  getUint32LE(source: Uint8Array, offset: number): number {
+    return (
+      source[offset] +
+      source[offset + 1] * 256 +
+      source[offset + 2] * 65536 +
+      source[offset + 3] * 16777216
+    );
+  },
+
+  /** Reads a big-endian 32-bit integer from source */
+  getUint32BE(source: Uint8Array, offset: number): number {
+    return (
+      source[offset + 3] +
+      source[offset + 2] * 256 +
+      source[offset + 1] * 65536 +
+      source[offset] * 16777216
+    );
+  },
+
+  /** Reads a little-endian 64-bit integer from source */
+  getBigInt64LE(source: Uint8Array, offset: number): bigint {
+    const lo = NumberUtils.getUint32LE(source, offset);
+    const hi = NumberUtils.getUint32LE(source, offset + 4);
+
+    /*
+      eslint-disable-next-line no-restricted-globals
+      -- This is allowed since this helper should not be called unless bigint features are enabled
+     */
+    return (BigInt(hi) << BigInt(32)) + BigInt(lo);
+  },
+
+  /** Reads a little-endian 64-bit float from source */
+  getFloat64LE: isBigEndian
+    ? (source: Uint8Array, offset: number) => {
+        FLOAT_BYTES[7] = source[offset];
+        FLOAT_BYTES[6] = source[offset + 1];
+        FLOAT_BYTES[5] = source[offset + 2];
+        FLOAT_BYTES[4] = source[offset + 3];
+        FLOAT_BYTES[3] = source[offset + 4];
+        FLOAT_BYTES[2] = source[offset + 5];
+        FLOAT_BYTES[1] = source[offset + 6];
+        FLOAT_BYTES[0] = source[offset + 7];
+        return FLOAT[0];
+      }
+    : (source: Uint8Array, offset: number) => {
+        FLOAT_BYTES[0] = source[offset];
+        FLOAT_BYTES[1] = source[offset + 1];
+        FLOAT_BYTES[2] = source[offset + 2];
+        FLOAT_BYTES[3] = source[offset + 3];
+        FLOAT_BYTES[4] = source[offset + 4];
+        FLOAT_BYTES[5] = source[offset + 5];
+        FLOAT_BYTES[6] = source[offset + 6];
+        FLOAT_BYTES[7] = source[offset + 7];
+        return FLOAT[0];
+      },
+
+  /** Writes a big-endian 32-bit integer to destination, can be signed or unsigned */
+  setInt32BE(destination: Uint8Array, offset: number, value: number): 4 {
+    destination[offset + 3] = value;
+    value >>>= 8;
+    destination[offset + 2] = value;
+    value >>>= 8;
+    destination[offset + 1] = value;
+    value >>>= 8;
+    destination[offset] = value;
+    return 4;
+  },
+
+  /** Writes a little-endian 32-bit integer to destination, can be signed or unsigned */
+  setInt32LE(destination: Uint8Array, offset: number, value: number): 4 {
+    destination[offset] = value;
+    value >>>= 8;
+    destination[offset + 1] = value;
+    value >>>= 8;
+    destination[offset + 2] = value;
+    value >>>= 8;
+    destination[offset + 3] = value;
+    return 4;
+  },
+
+  /** Write a little-endian 64-bit integer to source */
+  setBigInt64LE(destination: Uint8Array, offset: number, value: bigint): 8 {
+    /* eslint-disable-next-line no-restricted-globals -- This is allowed here as useBigInt64=true */
+    const mask32bits = BigInt(0xffff_ffff);
+
+    /** lower 32 bits */
+    let lo = Number(value & mask32bits);
+    destination[offset] = lo;
+    lo >>= 8;
+    destination[offset + 1] = lo;
+    lo >>= 8;
+    destination[offset + 2] = lo;
+    lo >>= 8;
+    destination[offset + 3] = lo;
+
+    /*
+       eslint-disable-next-line no-restricted-globals
+       -- This is allowed here as useBigInt64=true
+
+       upper 32 bits
+     */
+    let hi = Number((value >> BigInt(32)) & mask32bits);
+    destination[offset + 4] = hi;
+    hi >>= 8;
+    destination[offset + 5] = hi;
+    hi >>= 8;
+    destination[offset + 6] = hi;
+    hi >>= 8;
+    destination[offset + 7] = hi;
+
+    return 8;
+  },
+
+  /** Writes a little-endian 64-bit float to destination */
+  setFloat64LE: isBigEndian
+    ? (destination: Uint8Array, offset: number, value: number) => {
+        FLOAT[0] = value;
+        destination[offset] = FLOAT_BYTES[7];
+        destination[offset + 1] = FLOAT_BYTES[6];
+        destination[offset + 2] = FLOAT_BYTES[5];
+        destination[offset + 3] = FLOAT_BYTES[4];
+        destination[offset + 4] = FLOAT_BYTES[3];
+        destination[offset + 5] = FLOAT_BYTES[2];
+        destination[offset + 6] = FLOAT_BYTES[1];
+        destination[offset + 7] = FLOAT_BYTES[0];
+        return 8;
+      }
+    : (destination: Uint8Array, offset: number, value: number) => {
+        FLOAT[0] = value;
+        destination[offset] = FLOAT_BYTES[0];
+        destination[offset + 1] = FLOAT_BYTES[1];
+        destination[offset + 2] = FLOAT_BYTES[2];
+        destination[offset + 3] = FLOAT_BYTES[3];
+        destination[offset + 4] = FLOAT_BYTES[4];
+        destination[offset + 5] = FLOAT_BYTES[5];
+        destination[offset + 6] = FLOAT_BYTES[6];
+        destination[offset + 7] = FLOAT_BYTES[7];
+        return 8;
+      }
+};
diff --git a/backend/node_modules/bson/src/utils/string_utils.ts b/backend/node_modules/bson/src/utils/string_utils.ts
new file mode 100644
index 0000000..1ffb118
--- /dev/null
+++ b/backend/node_modules/bson/src/utils/string_utils.ts
@@ -0,0 +1,44 @@
+/**
+ * @internal
+ * Removes leading zeros and explicit plus from textual representation of a number.
+ */
+export function removeLeadingZerosAndExplicitPlus(str: string): string {
+  if (str === '') {
+    return str;
+  }
+
+  let startIndex = 0;
+
+  const isNegative = str[startIndex] === '-';
+  const isExplicitlyPositive = str[startIndex] === '+';
+
+  if (isExplicitlyPositive || isNegative) {
+    startIndex += 1;
+  }
+
+  let foundInsignificantZero = false;
+
+  for (; startIndex < str.length && str[startIndex] === '0'; ++startIndex) {
+    foundInsignificantZero = true;
+  }
+
+  if (!foundInsignificantZero) {
+    return isExplicitlyPositive ? str.slice(1) : str;
+  }
+
+  return `${isNegative ? '-' : ''}${str.length === startIndex ? '0' : str.slice(startIndex)}`;
+}
+
+/**
+ * @internal
+ * Returns false for an string that contains invalid characters for its radix, else returns the original string.
+ * @param str - The textual representation of the Long
+ * @param radix - The radix in which the text is written (2-36), defaults to 10
+ */
+export function validateStringCharacters(str: string, radix?: number): false | string {
+  radix = radix ?? 10;
+  const validCharacters = '0123456789abcdefghijklmnopqrstuvwxyz'.slice(0, radix);
+  // regex is case insensitive and checks that each character within the string is one of the validCharacters
+  const regex = new RegExp(`[^-+${validCharacters}]`, 'i');
+  return regex.test(str) ? false : str;
+}
diff --git a/backend/node_modules/bson/src/utils/web_byte_utils.ts b/backend/node_modules/bson/src/utils/web_byte_utils.ts
new file mode 100644
index 0000000..336d37e
--- /dev/null
+++ b/backend/node_modules/bson/src/utils/web_byte_utils.ts
@@ -0,0 +1,216 @@
+import { BSONError } from '../error';
+import { tryReadBasicLatin } from './latin';
+import { parseUtf8 } from '../parse_utf8';
+
+type TextDecoder = {
+  readonly encoding: string;
+  readonly fatal: boolean;
+  readonly ignoreBOM: boolean;
+  decode(input?: Uint8Array): string;
+};
+type TextDecoderConstructor = {
+  new (label: 'utf8', options: { fatal: boolean; ignoreBOM?: boolean }): TextDecoder;
+};
+
+type TextEncoder = {
+  readonly encoding: string;
+  encode(input?: string): Uint8Array;
+};
+type TextEncoderConstructor = {
+  new (): TextEncoder;
+};
+
+// Web global
+declare const TextDecoder: TextDecoderConstructor;
+declare const TextEncoder: TextEncoderConstructor;
+declare const atob: (base64: string) => string;
+declare const btoa: (binary: string) => string;
+
+type ArrayBufferViewWithTag = ArrayBufferView & {
+  [Symbol.toStringTag]?: string;
+};
+
+function isReactNative() {
+  const { navigator } = globalThis as { navigator?: { product?: string } };
+  return typeof navigator === 'object' && navigator.product === 'ReactNative';
+}
+
+/** @internal */
+export function webMathRandomBytes(byteLength: number) {
+  if (byteLength < 0) {
+    throw new RangeError(`The argument 'byteLength' is invalid. Received ${byteLength}`);
+  }
+  return webByteUtils.fromNumberArray(
+    Array.from({ length: byteLength }, () => Math.floor(Math.random() * 256))
+  );
+}
+
+/** @internal */
+const webRandomBytes: (byteLength: number) => Uint8Array = (() => {
+  const { crypto } = globalThis as {
+    crypto?: { getRandomValues?: (space: Uint8Array) => Uint8Array };
+  };
+  if (crypto != null && typeof crypto.getRandomValues === 'function') {
+    return (byteLength: number) => {
+      // @ts-expect-error: crypto.getRandomValues cannot actually be null here
+      // You cannot separate getRandomValues from crypto (need to have this === crypto)
+      return crypto.getRandomValues(webByteUtils.allocate(byteLength));
+    };
+  } else {
+    if (isReactNative()) {
+      const { console } = globalThis as { console?: { warn?: (message: string) => void } };
+      console?.warn?.(
+        'BSON: For React Native please polyfill crypto.getRandomValues, e.g. using: https://www.npmjs.com/package/react-native-get-random-values.'
+      );
+    }
+    return webMathRandomBytes;
+  }
+})();
+
+const HEX_DIGIT = /(\d|[a-f])/i;
+
+/** @internal */
+export const webByteUtils = {
+  toLocalBufferType(
+    potentialUint8array: Uint8Array | ArrayBufferViewWithTag | ArrayBuffer
+  ): Uint8Array {
+    const stringTag =
+      potentialUint8array?.[Symbol.toStringTag] ??
+      Object.prototype.toString.call(potentialUint8array);
+
+    if (stringTag === 'Uint8Array') {
+      return potentialUint8array as Uint8Array;
+    }
+
+    if (ArrayBuffer.isView(potentialUint8array)) {
+      return new Uint8Array(
+        potentialUint8array.buffer.slice(
+          potentialUint8array.byteOffset,
+          potentialUint8array.byteOffset + potentialUint8array.byteLength
+        )
+      );
+    }
+
+    if (
+      stringTag === 'ArrayBuffer' ||
+      stringTag === 'SharedArrayBuffer' ||
+      stringTag === '[object ArrayBuffer]' ||
+      stringTag === '[object SharedArrayBuffer]'
+    ) {
+      return new Uint8Array(potentialUint8array);
+    }
+
+    throw new BSONError(`Cannot make a Uint8Array from passed potentialBuffer.`);
+  },
+
+  allocate(size: number): Uint8Array {
+    if (typeof size !== 'number') {
+      throw new TypeError(`The "size" argument must be of type number. Received ${String(size)}`);
+    }
+    return new Uint8Array(size);
+  },
+
+  allocateUnsafe(size: number): Uint8Array {
+    return webByteUtils.allocate(size);
+  },
+
+  equals(a: Uint8Array, b: Uint8Array): boolean {
+    if (a.byteLength !== b.byteLength) {
+      return false;
+    }
+    for (let i = 0; i < a.byteLength; i++) {
+      if (a[i] !== b[i]) {
+        return false;
+      }
+    }
+    return true;
+  },
+
+  fromNumberArray(array: number[]): Uint8Array {
+    return Uint8Array.from(array);
+  },
+
+  fromBase64(base64: string): Uint8Array {
+    return Uint8Array.from(atob(base64), c => c.charCodeAt(0));
+  },
+
+  toBase64(uint8array: Uint8Array): string {
+    return btoa(webByteUtils.toISO88591(uint8array));
+  },
+
+  /** **Legacy** binary strings are an outdated method of data transfer. Do not add public API support for interpreting this format */
+  fromISO88591(codePoints: string): Uint8Array {
+    return Uint8Array.from(codePoints, c => c.charCodeAt(0) & 0xff);
+  },
+
+  /** **Legacy** binary strings are an outdated method of data transfer. Do not add public API support for interpreting this format */
+  toISO88591(uint8array: Uint8Array): string {
+    return Array.from(Uint16Array.from(uint8array), b => String.fromCharCode(b)).join('');
+  },
+
+  fromHex(hex: string): Uint8Array {
+    const evenLengthHex = hex.length % 2 === 0 ? hex : hex.slice(0, hex.length - 1);
+    const buffer = [];
+
+    for (let i = 0; i < evenLengthHex.length; i += 2) {
+      const firstDigit = evenLengthHex[i];
+      const secondDigit = evenLengthHex[i + 1];
+
+      if (!HEX_DIGIT.test(firstDigit)) {
+        break;
+      }
+      if (!HEX_DIGIT.test(secondDigit)) {
+        break;
+      }
+
+      const hexDigit = Number.parseInt(`${firstDigit}${secondDigit}`, 16);
+      buffer.push(hexDigit);
+    }
+
+    return Uint8Array.from(buffer);
+  },
+
+  toHex(uint8array: Uint8Array): string {
+    return Array.from(uint8array, byte => byte.toString(16).padStart(2, '0')).join('');
+  },
+
+  toUTF8(uint8array: Uint8Array, start: number, end: number, fatal: boolean): string {
+    const basicLatin = end - start <= 20 ? tryReadBasicLatin(uint8array, start, end) : null;
+    if (basicLatin != null) {
+      return basicLatin;
+    }
+
+    return parseUtf8(uint8array, start, end, fatal);
+  },
+
+  utf8ByteLength(input: string): number {
+    return new TextEncoder().encode(input).byteLength;
+  },
+
+  encodeUTF8Into(uint8array: Uint8Array, source: string, byteOffset: number): number {
+    const bytes = new TextEncoder().encode(source);
+    uint8array.set(bytes, byteOffset);
+    return bytes.byteLength;
+  },
+
+  randomBytes: webRandomBytes,
+
+  swap32(buffer: Uint8Array): Uint8Array {
+    if (buffer.length % 4 !== 0) {
+      throw new RangeError('Buffer size must be a multiple of 32-bits');
+    }
+
+    for (let i = 0; i < buffer.length; i += 4) {
+      const byte0 = buffer[i];
+      const byte1 = buffer[i + 1];
+      const byte2 = buffer[i + 2];
+      const byte3 = buffer[i + 3];
+      buffer[i] = byte3;
+      buffer[i + 1] = byte2;
+      buffer[i + 2] = byte1;
+      buffer[i + 3] = byte0;
+    }
+
+    return buffer;
+  }
+};
diff --git a/backend/node_modules/bson/vendor/base64/LICENSE-MIT.txt b/backend/node_modules/bson/vendor/base64/LICENSE-MIT.txt
new file mode 100644
index 0000000..a41e0a7
--- /dev/null
+++ b/backend/node_modules/bson/vendor/base64/LICENSE-MIT.txt
@@ -0,0 +1,20 @@
+Copyright Mathias Bynens <https://mathiasbynens.be/>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/bson/vendor/base64/README.md b/backend/node_modules/bson/vendor/base64/README.md
new file mode 100644
index 0000000..ab0ef25
--- /dev/null
+++ b/backend/node_modules/bson/vendor/base64/README.md
@@ -0,0 +1,112 @@
+# base64 [![Build status](https://travis-ci.org/mathiasbynens/base64.svg?branch=master)](https://travis-ci.org/mathiasbynens/base64) [![Code coverage status](http://img.shields.io/coveralls/mathiasbynens/base64/master.svg)](https://coveralls.io/r/mathiasbynens/base64)
+
+_base64_ is a robust base64 encoder/decoder that is fully compatible with [`atob()` and `btoa()`](https://html.spec.whatwg.org/multipage/webappapis.html#atob), written in JavaScript. The base64-encoding and -decoding algorithms it uses are fully [RFC 4648](https://tools.ietf.org/html/rfc4648#section-4) compliant.
+
+## Installation
+
+Via [npm](https://www.npmjs.com/):
+
+```bash
+npm install base-64
+```
+
+In a browser:
+
+```html
+<script src="base64.js"></script>
+```
+
+In [Narwhal](http://narwhaljs.org/), [Node.js](https://nodejs.org/), and [RingoJS](http://ringojs.org/):
+
+```js
+var base64 = require('base-64');
+```
+
+In [Rhino](http://www.mozilla.org/rhino/):
+
+```js
+load('base64.js');
+```
+
+Using an AMD loader like [RequireJS](http://requirejs.org/):
+
+```js
+require(
+  {
+    'paths': {
+      'base64': 'path/to/base64'
+    }
+  },
+  ['base64'],
+  function(base64) {
+    console.log(base64);
+  }
+);
+```
+
+## API
+
+### `base64.version`
+
+A string representing the semantic version number.
+
+### `base64.encode(input)`
+
+This function takes a byte string (the `input` parameter) and encodes it according to base64. The input data must be in the form of a string containing only characters in the range from U+0000 to U+00FF, each representing a binary byte with values `0x00` to `0xFF`. The `base64.encode()` function is designed to be fully compatible with [`btoa()` as described in the HTML Standard](https://html.spec.whatwg.org/multipage/webappapis.html#dom-windowbase64-btoa).
+
+```js
+var encodedData = base64.encode(input);
+```
+
+To base64-encode any Unicode string, [encode it as UTF-8 first](https://github.com/mathiasbynens/utf8.js#utf8encodestring):
+
+```js
+var base64 = require('base-64');
+var utf8 = require('utf8');
+
+var text = 'foo © bar 𝌆 baz';
+var bytes = utf8.encode(text);
+var encoded = base64.encode(bytes);
+console.log(encoded);
+// → 'Zm9vIMKpIGJhciDwnYyGIGJheg=='
+```
+
+### `base64.decode(input)`
+
+This function takes a base64-encoded string (the `input` parameter) and decodes it. The return value is in the form of a string containing only characters in the range from U+0000 to U+00FF, each representing a binary byte with values `0x00` to `0xFF`. The `base64.decode()` function is designed to be fully compatible with [`atob()` as described in the HTML Standard](https://html.spec.whatwg.org/multipage/webappapis.html#dom-windowbase64-atob).
+
+```js
+var decodedData = base64.decode(encodedData);
+```
+
+To base64-decode UTF-8-encoded data back into a Unicode string, [UTF-8-decode it](https://github.com/mathiasbynens/utf8.js#utf8decodebytestring) after base64-decoding it:
+
+```js
+var encoded = 'Zm9vIMKpIGJhciDwnYyGIGJheg==';
+var bytes = base64.decode(encoded);
+var text = utf8.decode(bytes);
+console.log(text);
+// → 'foo © bar 𝌆 baz'
+```
+
+## Support
+
+_base64_ is designed to work in at least Node.js v0.10.0, Narwhal 0.3.2, RingoJS 0.8-0.9, PhantomJS 1.9.0, Rhino 1.7RC4, as well as old and modern versions of Chrome, Firefox, Safari, Opera, and Internet Explorer.
+
+## Unit tests & code coverage
+
+After cloning this repository, run `npm install` to install the dependencies needed for development and testing. You may want to install Istanbul _globally_ using `npm install istanbul -g`.
+
+Once that’s done, you can run the unit tests in Node using `npm test` or `node tests/tests.js`. To run the tests in Rhino, Ringo, Narwhal, and web browsers as well, use `grunt test`.
+
+To generate the code coverage report, use `grunt cover`.
+
+## Author
+
+| [![twitter/mathias](https://gravatar.com/avatar/24e08a9ea84deb17ae121074d0f17125?s=70)](https://twitter.com/mathias "Follow @mathias on Twitter") |
+|---|
+| [Mathias Bynens](https://mathiasbynens.be/) |
+
+## License
+
+_base64_ is available under the [MIT](https://mths.be/mit) license.
diff --git a/backend/node_modules/bson/vendor/base64/base64.js b/backend/node_modules/bson/vendor/base64/base64.js
new file mode 100644
index 0000000..611b446
--- /dev/null
+++ b/backend/node_modules/bson/vendor/base64/base64.js
@@ -0,0 +1,157 @@
+/*! https://mths.be/base64 v1.0.0 by @mathias | MIT license */
+;(function(root) {
+
+	// Detect free variables `exports`.
+	var freeExports = typeof exports == 'object' && exports;
+
+	// Detect free variable `module`.
+	var freeModule = typeof module == 'object' && module &&
+		module.exports == freeExports && module;
+
+	/*--------------------------------------------------------------------------*/
+
+	var InvalidCharacterError = function(message) {
+		this.message = message;
+	};
+	InvalidCharacterError.prototype = new Error;
+	InvalidCharacterError.prototype.name = 'InvalidCharacterError';
+
+	var error = function(message) {
+		// Note: the error messages used throughout this file match those used by
+		// the native `atob`/`btoa` implementation in Chromium.
+		throw new InvalidCharacterError(message);
+	};
+
+	var TABLE = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
+	// http://whatwg.org/html/common-microsyntaxes.html#space-character
+	var REGEX_SPACE_CHARACTERS = /[\t\n\f\r ]/g;
+
+	// `decode` is designed to be fully compatible with `atob` as described in the
+	// HTML Standard. http://whatwg.org/html/webappapis.html#dom-windowbase64-atob
+	// The optimized base64-decoding algorithm used is based on @atk’s excellent
+	// implementation. https://gist.github.com/atk/1020396
+	var decode = function(input) {
+		input = String(input)
+			.replace(REGEX_SPACE_CHARACTERS, '');
+		var length = input.length;
+		if (length % 4 == 0) {
+			input = input.replace(/==?$/, '');
+			length = input.length;
+		}
+		if (
+			length % 4 == 1 ||
+			// http://whatwg.org/C#alphanumeric-ascii-characters
+			/[^+a-zA-Z0-9/]/.test(input)
+		) {
+			error(
+				'Invalid character: the string to be decoded is not correctly encoded.'
+			);
+		}
+		var bitCounter = 0;
+		var bitStorage;
+		var buffer;
+		var output = '';
+		var position = -1;
+		while (++position < length) {
+			buffer = TABLE.indexOf(input.charAt(position));
+			bitStorage = bitCounter % 4 ? bitStorage * 64 + buffer : buffer;
+			// Unless this is the first of a group of 4 characters…
+			if (bitCounter++ % 4) {
+				// …convert the first 8 bits to a single ASCII character.
+				output += String.fromCharCode(
+					0xFF & bitStorage >> (-2 * bitCounter & 6)
+				);
+			}
+		}
+		return output;
+	};
+
+	// `encode` is designed to be fully compatible with `btoa` as described in the
+	// HTML Standard: http://whatwg.org/html/webappapis.html#dom-windowbase64-btoa
+	var encode = function(input) {
+		input = String(input);
+		if (/[^\0-\xFF]/.test(input)) {
+			// Note: no need to special-case astral symbols here, as surrogates are
+			// matched, and the input is supposed to only contain ASCII anyway.
+			error(
+				'The string to be encoded contains characters outside of the ' +
+				'Latin1 range.'
+			);
+		}
+		var padding = input.length % 3;
+		var output = '';
+		var position = -1;
+		var a;
+		var b;
+		var c;
+		var buffer;
+		// Make sure any padding is handled outside of the loop.
+		var length = input.length - padding;
+
+		while (++position < length) {
+			// Read three bytes, i.e. 24 bits.
+			a = input.charCodeAt(position) << 16;
+			b = input.charCodeAt(++position) << 8;
+			c = input.charCodeAt(++position);
+			buffer = a + b + c;
+			// Turn the 24 bits into four chunks of 6 bits each, and append the
+			// matching character for each of them to the output.
+			output += (
+				TABLE.charAt(buffer >> 18 & 0x3F) +
+				TABLE.charAt(buffer >> 12 & 0x3F) +
+				TABLE.charAt(buffer >> 6 & 0x3F) +
+				TABLE.charAt(buffer & 0x3F)
+			);
+		}
+
+		if (padding == 2) {
+			a = input.charCodeAt(position) << 8;
+			b = input.charCodeAt(++position);
+			buffer = a + b;
+			output += (
+				TABLE.charAt(buffer >> 10) +
+				TABLE.charAt((buffer >> 4) & 0x3F) +
+				TABLE.charAt((buffer << 2) & 0x3F) +
+				'='
+			);
+		} else if (padding == 1) {
+			buffer = input.charCodeAt(position);
+			output += (
+				TABLE.charAt(buffer >> 2) +
+				TABLE.charAt((buffer << 4) & 0x3F) +
+				'=='
+			);
+		}
+
+		return output;
+	};
+
+	var base64 = {
+		'encode': encode,
+		'decode': decode,
+		'version': '1.0.0'
+	};
+
+	// Some AMD build optimizers, like r.js, check for specific condition patterns
+	// like the following:
+	if (
+		typeof define == 'function' &&
+		typeof define.amd == 'object' &&
+		define.amd
+	) {
+		define(function() {
+			return base64;
+		});
+	}	else if (freeExports && !freeExports.nodeType) {
+		if (freeModule) { // in Node.js or RingoJS v0.8.0+
+			freeModule.exports = base64;
+		} else { // in Narwhal or RingoJS v0.7.0-
+			for (var key in base64) {
+				base64.hasOwnProperty(key) && (freeExports[key] = base64[key]);
+			}
+		}
+	} else { // in Rhino or a web browser
+		root.base64 = base64;
+	}
+
+}(this));
diff --git a/backend/node_modules/bson/vendor/base64/package.json b/backend/node_modules/bson/vendor/base64/package.json
new file mode 100644
index 0000000..479b0a1
--- /dev/null
+++ b/backend/node_modules/bson/vendor/base64/package.json
@@ -0,0 +1,43 @@
+{
+	"name": "base-64",
+	"version": "1.0.0",
+	"description": "A robust base64 encoder/decoder that is fully compatible with `atob()` and `btoa()`, written in JavaScript.",
+	"homepage": "https://mths.be/base64",
+	"main": "base64.js",
+	"keywords": [
+		"codec",
+		"decoder",
+		"encoder",
+		"base64",
+		"atob",
+		"btoa"
+	],
+	"license": "MIT",
+	"author": {
+		"name": "Mathias Bynens",
+		"url": "https://mathiasbynens.be/"
+	},
+	"repository": {
+		"type": "git",
+		"url": "https://github.com/mathiasbynens/base64.git"
+	},
+	"bugs": "https://github.com/mathiasbynens/base64/issues",
+	"files": [
+		"LICENSE-MIT.txt",
+		"base64.js"
+	],
+	"scripts": {
+		"test": "mocha tests/tests.js",
+		"build": "grunt build"
+	},
+	"devDependencies": {
+		"coveralls": "^2.11.4",
+		"grunt": "^0.4.5",
+		"grunt-cli": "^1.3.2",
+		"grunt-shell": "^1.1.2",
+		"grunt-template": "^0.2.3",
+		"istanbul": "^0.4.0",
+		"mocha": "^6.2.0",
+		"regenerate": "^1.2.1"
+	}
+}
diff --git a/backend/node_modules/bson/vendor/text-encoding/LICENSE.md b/backend/node_modules/bson/vendor/text-encoding/LICENSE.md
new file mode 100644
index 0000000..5ab1046
--- /dev/null
+++ b/backend/node_modules/bson/vendor/text-encoding/LICENSE.md
@@ -0,0 +1,237 @@
+The encoding indexes, algorithms, and many comments in the code
+derive from the Encoding Standard https://encoding.spec.whatwg.org/
+
+Otherwise, the code of this repository is released under the Unlicense
+license and is also dual-licensed under an Apache 2.0 license. Both
+are included below.
+
+# Unlicense
+
+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <http://unlicense.org/>
+
+# Apache 2.0 License
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
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diff --git a/backend/node_modules/bson/vendor/text-encoding/README.md b/backend/node_modules/bson/vendor/text-encoding/README.md
new file mode 100644
index 0000000..b9af0e3
--- /dev/null
+++ b/backend/node_modules/bson/vendor/text-encoding/README.md
@@ -0,0 +1,111 @@
+text-encoding
+==============
+
+This is a polyfill for the [Encoding Living
+Standard](https://encoding.spec.whatwg.org/) API for the Web, allowing
+encoding and decoding of textual data to and from Typed Array buffers
+for binary data in JavaScript.
+
+By default it adheres to the spec and does not support *encoding* to
+legacy encodings, only *decoding*. It is also implemented to match the
+specification's algorithms, rather than for performance. The intended
+use is within Web pages, so it has no dependency on server frameworks
+or particular module schemes.
+
+Basic examples and tests are included.
+
+### Install ###
+
+There are a few ways you can get and use the `text-encoding` library.
+
+### HTML Page Usage ###
+
+Clone the repo and include the files directly:
+
+```html
+  <!-- Required for non-UTF encodings -->
+  <script src="encoding-indexes.js"></script>
+  <script src="encoding.js"></script>
+```
+
+This is the only use case the developer cares about. If you want those
+fancy module and/or package manager things that are popular these days
+you should probably use a different library.
+
+#### Package Managers ####
+
+The package is published to **npm** and **bower** as `text-encoding`.
+Use through these is not really supported, since they aren't used by
+the developer of the library. Using `require()` in interesting ways
+probably breaks. Patches welcome, as long as they don't break the
+basic use of the files via `<script>`.
+
+### API Overview ###
+
+Basic Usage
+
+```js
+  var uint8array = new TextEncoder().encode(string);
+  var string = new TextDecoder(encoding).decode(uint8array);
+```
+
+Streaming Decode
+
+```js
+  var string = "", decoder = new TextDecoder(encoding), buffer;
+  while (buffer = next_chunk()) {
+    string += decoder.decode(buffer, {stream:true});
+  }
+  string += decoder.decode(); // finish the stream
+```
+
+### Encodings ###
+
+All encodings from the Encoding specification are supported:
+
+utf-8 ibm866 iso-8859-2 iso-8859-3 iso-8859-4 iso-8859-5 iso-8859-6
+iso-8859-7 iso-8859-8 iso-8859-8-i iso-8859-10 iso-8859-13 iso-8859-14
+iso-8859-15 iso-8859-16 koi8-r koi8-u macintosh windows-874
+windows-1250 windows-1251 windows-1252 windows-1253 windows-1254
+windows-1255 windows-1256 windows-1257 windows-1258 x-mac-cyrillic
+gb18030 hz-gb-2312 big5 euc-jp iso-2022-jp shift_jis euc-kr
+replacement utf-16be utf-16le x-user-defined
+
+(Some encodings may be supported under other names, e.g. ascii,
+iso-8859-1, etc. See [Encoding](https://encoding.spec.whatwg.org/) for
+additional labels for each encoding.)
+
+Encodings other than **utf-8**, **utf-16le** and **utf-16be** require
+an additional `encoding-indexes.js` file to be included. It is rather
+large (596kB uncompressed, 188kB gzipped); portions may be deleted if
+support for some encodings is not required.
+
+### Non-Standard Behavior ###
+
+As required by the specification, only encoding to **utf-8** is
+supported. If you want to try it out, you can force a non-standard
+behavior by passing the `NONSTANDARD_allowLegacyEncoding` option to
+TextEncoder and a label. For example:
+
+```js
+var uint8array = new TextEncoder(
+  'windows-1252', { NONSTANDARD_allowLegacyEncoding: true }).encode(text);
+```
+
+But note that the above won't work if you're using the polyfill in a
+browser that natively supports the TextEncoder API natively, since the
+polyfill won't be used!
+
+You can force the polyfill to be used by using this before the polyfill:
+
+```html
+<script>
+window.TextEncoder = window.TextDecoder = null;
+</script>
+```
+
+To support the legacy encodings (which may be stateful), the
+TextEncoder `encode()` method accepts an optional dictionary and
+`stream` option, e.g. `encoder.encode(string, {stream: true});` This
+is not needed for standard encoding since the input is always in
+complete code points.
diff --git a/backend/node_modules/bson/vendor/text-encoding/index.js b/backend/node_modules/bson/vendor/text-encoding/index.js
new file mode 100644
index 0000000..cc57d65
--- /dev/null
+++ b/backend/node_modules/bson/vendor/text-encoding/index.js
@@ -0,0 +1,9 @@
+// This is free and unencumbered software released into the public domain.
+// See LICENSE.md for more information.
+
+var encoding = require("./lib/encoding.js");
+
+module.exports = {
+  TextEncoder: encoding.TextEncoder,
+  TextDecoder: encoding.TextDecoder,
+};
diff --git a/backend/node_modules/bson/vendor/text-encoding/lib/encoding-indexes.js b/backend/node_modules/bson/vendor/text-encoding/lib/encoding-indexes.js
new file mode 100644
index 0000000..4f170c3
--- /dev/null
+++ b/backend/node_modules/bson/vendor/text-encoding/lib/encoding-indexes.js
@@ -0,0 +1,47 @@
+(function(global) {
+  'use strict';
+
+  if (typeof module !== "undefined" && module.exports) {
+    module.exports = global;
+  }
+
+  global["encoding-indexes"] =
+{
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+  "iso-8859-6":[128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,null,null,null,164,null,null,null,null,null,null,null,1548,173,null,null,null,null,null,null,null,null,null,null,null,null,null,1563,null,null,null,1567,null,1569,1570,1571,1572,1573,1574,1575,1576,1577,1578,1579,1580,1581,1582,1583,1584,1585,1586,1587,1588,1589,1590,1591,1592,1593,1594,null,null,null,null,null,1600,1601,1602,1603,1604,1605,1606,1607,1608,1609,1610,1611,1612,1613,1614,1615,1616,1617,1618,null,null,null,null,null,null,null,null,null,null,null,null,null],
+  "iso-8859-7":[128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,8216,8217,163,8364,8367,166,167,168,169,890,171,172,173,null,8213,176,177,178,179,900,901,902,183,904,905,906,187,908,189,910,911,912,913,914,915,916,917,918,919,920,921,922,923,924,925,926,927,928,929,null,931,932,933,934,935,936,937,938,939,940,941,942,943,944,945,946,947,948,949,950,951,952,953,954,955,956,957,958,959,960,961,962,963,964,965,966,967,968,969,970,971,972,973,974,null],
+  "iso-8859-8":[128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,null,162,163,164,165,166,167,168,169,215,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,247,187,188,189,190,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,8215,1488,1489,1490,1491,1492,1493,1494,1495,1496,1497,1498,1499,1500,1501,1502,1503,1504,1505,1506,1507,1508,1509,1510,1511,1512,1513,1514,null,null,8206,8207,null],
+  "iso-8859-10":[128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,260,274,290,298,296,310,167,315,272,352,358,381,173,362,330,176,261,275,291,299,297,311,183,316,273,353,359,382,8213,363,331,256,193,194,195,196,197,198,302,268,201,280,203,278,205,206,207,208,325,332,211,212,213,214,360,216,370,218,219,220,221,222,223,257,225,226,227,228,229,230,303,269,233,281,235,279,237,238,239,240,326,333,243,244,245,246,361,248,371,250,251,252,253,254,312],
+  "iso-8859-13":[128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,8221,162,163,164,8222,166,167,216,169,342,171,172,173,174,198,176,177,178,179,8220,181,182,183,248,185,343,187,188,189,190,230,260,302,256,262,196,197,280,274,268,201,377,278,290,310,298,315,352,323,325,211,332,213,214,215,370,321,346,362,220,379,381,223,261,303,257,263,228,229,281,275,269,233,378,279,291,311,299,316,353,324,326,243,333,245,246,247,371,322,347,363,252,380,382,8217],
+  "iso-8859-14":[128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,7682,7683,163,266,267,7690,167,7808,169,7810,7691,7922,173,174,376,7710,7711,288,289,7744,7745,182,7766,7809,7767,7811,7776,7923,7812,7813,7777,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,372,209,210,211,212,213,214,7786,216,217,218,219,220,221,374,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,373,241,242,243,244,245,246,7787,248,249,250,251,252,253,375,255],
+  "iso-8859-15":[128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,8364,165,352,167,353,169,170,171,172,173,174,175,176,177,178,179,381,181,182,183,382,185,186,187,338,339,376,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255],
+  "iso-8859-16":[128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,260,261,321,8364,8222,352,167,353,169,536,171,377,173,378,379,176,177,268,322,381,8221,182,183,382,269,537,187,338,339,376,380,192,193,194,258,196,262,198,199,200,201,202,203,204,205,206,207,272,323,210,211,212,336,214,346,368,217,218,219,220,280,538,223,224,225,226,259,228,263,230,231,232,233,234,235,236,237,238,239,273,324,242,243,244,337,246,347,369,249,250,251,252,281,539,255],
+  "koi8-r":[9472,9474,9484,9488,9492,9496,9500,9508,9516,9524,9532,9600,9604,9608,9612,9616,9617,9618,9619,8992,9632,8729,8730,8776,8804,8805,160,8993,176,178,183,247,9552,9553,9554,1105,9555,9556,9557,9558,9559,9560,9561,9562,9563,9564,9565,9566,9567,9568,9569,1025,9570,9571,9572,9573,9574,9575,9576,9577,9578,9579,9580,169,1102,1072,1073,1094,1076,1077,1092,1075,1093,1080,1081,1082,1083,1084,1085,1086,1087,1103,1088,1089,1090,1091,1078,1074,1100,1099,1079,1096,1101,1097,1095,1098,1070,1040,1041,1062,1044,1045,1060,1043,1061,1048,1049,1050,1051,1052,1053,1054,1055,1071,1056,1057,1058,1059,1046,1042,1068,1067,1047,1064,1069,1065,1063,1066],
+  "koi8-u":[9472,9474,9484,9488,9492,9496,9500,9508,9516,9524,9532,9600,9604,9608,9612,9616,9617,9618,9619,8992,9632,8729,8730,8776,8804,8805,160,8993,176,178,183,247,9552,9553,9554,1105,1108,9556,1110,1111,9559,9560,9561,9562,9563,1169,1118,9566,9567,9568,9569,1025,1028,9571,1030,1031,9574,9575,9576,9577,9578,1168,1038,169,1102,1072,1073,1094,1076,1077,1092,1075,1093,1080,1081,1082,1083,1084,1085,1086,1087,1103,1088,1089,1090,1091,1078,1074,1100,1099,1079,1096,1101,1097,1095,1098,1070,1040,1041,1062,1044,1045,1060,1043,1061,1048,1049,1050,1051,1052,1053,1054,1055,1071,1056,1057,1058,1059,1046,1042,1068,1067,1047,1064,1069,1065,1063,1066],
+  "macintosh":[196,197,199,201,209,214,220,225,224,226,228,227,229,231,233,232,234,235,237,236,238,239,241,243,242,244,246,245,250,249,251,252,8224,176,162,163,167,8226,182,223,174,169,8482,180,168,8800,198,216,8734,177,8804,8805,165,181,8706,8721,8719,960,8747,170,186,937,230,248,191,161,172,8730,402,8776,8710,171,187,8230,160,192,195,213,338,339,8211,8212,8220,8221,8216,8217,247,9674,255,376,8260,8364,8249,8250,64257,64258,8225,183,8218,8222,8240,194,202,193,203,200,205,206,207,204,211,212,63743,210,218,219,217,305,710,732,175,728,729,730,184,733,731,711],
+  "windows-874":[8364,129,130,131,132,8230,134,135,136,137,138,139,140,141,142,143,144,8216,8217,8220,8221,8226,8211,8212,152,153,154,155,156,157,158,159,160,3585,3586,3587,3588,3589,3590,3591,3592,3593,3594,3595,3596,3597,3598,3599,3600,3601,3602,3603,3604,3605,3606,3607,3608,3609,3610,3611,3612,3613,3614,3615,3616,3617,3618,3619,3620,3621,3622,3623,3624,3625,3626,3627,3628,3629,3630,3631,3632,3633,3634,3635,3636,3637,3638,3639,3640,3641,3642,null,null,null,null,3647,3648,3649,3650,3651,3652,3653,3654,3655,3656,3657,3658,3659,3660,3661,3662,3663,3664,3665,3666,3667,3668,3669,3670,3671,3672,3673,3674,3675,null,null,null,null],
+  "windows-1250":[8364,129,8218,131,8222,8230,8224,8225,136,8240,352,8249,346,356,381,377,144,8216,8217,8220,8221,8226,8211,8212,152,8482,353,8250,347,357,382,378,160,711,728,321,164,260,166,167,168,169,350,171,172,173,174,379,176,177,731,322,180,181,182,183,184,261,351,187,317,733,318,380,340,193,194,258,196,313,262,199,268,201,280,203,282,205,206,270,272,323,327,211,212,336,214,215,344,366,218,368,220,221,354,223,341,225,226,259,228,314,263,231,269,233,281,235,283,237,238,271,273,324,328,243,244,337,246,247,345,367,250,369,252,253,355,729],
+  "windows-1251":[1026,1027,8218,1107,8222,8230,8224,8225,8364,8240,1033,8249,1034,1036,1035,1039,1106,8216,8217,8220,8221,8226,8211,8212,152,8482,1113,8250,1114,1116,1115,1119,160,1038,1118,1032,164,1168,166,167,1025,169,1028,171,172,173,174,1031,176,177,1030,1110,1169,181,182,183,1105,8470,1108,187,1112,1029,1109,1111,1040,1041,1042,1043,1044,1045,1046,1047,1048,1049,1050,1051,1052,1053,1054,1055,1056,1057,1058,1059,1060,1061,1062,1063,1064,1065,1066,1067,1068,1069,1070,1071,1072,1073,1074,1075,1076,1077,1078,1079,1080,1081,1082,1083,1084,1085,1086,1087,1088,1089,1090,1091,1092,1093,1094,1095,1096,1097,1098,1099,1100,1101,1102,1103],
+  "windows-1252":[8364,129,8218,402,8222,8230,8224,8225,710,8240,352,8249,338,141,381,143,144,8216,8217,8220,8221,8226,8211,8212,732,8482,353,8250,339,157,382,376,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255],
+  "windows-1253":[8364,129,8218,402,8222,8230,8224,8225,136,8240,138,8249,140,141,142,143,144,8216,8217,8220,8221,8226,8211,8212,152,8482,154,8250,156,157,158,159,160,901,902,163,164,165,166,167,168,169,null,171,172,173,174,8213,176,177,178,179,900,181,182,183,904,905,906,187,908,189,910,911,912,913,914,915,916,917,918,919,920,921,922,923,924,925,926,927,928,929,null,931,932,933,934,935,936,937,938,939,940,941,942,943,944,945,946,947,948,949,950,951,952,953,954,955,956,957,958,959,960,961,962,963,964,965,966,967,968,969,970,971,972,973,974,null],
+  "windows-1254":[8364,129,8218,402,8222,8230,8224,8225,710,8240,352,8249,338,141,142,143,144,8216,8217,8220,8221,8226,8211,8212,732,8482,353,8250,339,157,158,376,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,286,209,210,211,212,213,214,215,216,217,218,219,220,304,350,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,287,241,242,243,244,245,246,247,248,249,250,251,252,305,351,255],
+  "windows-1255":[8364,129,8218,402,8222,8230,8224,8225,710,8240,138,8249,140,141,142,143,144,8216,8217,8220,8221,8226,8211,8212,732,8482,154,8250,156,157,158,159,160,161,162,163,8362,165,166,167,168,169,215,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,247,187,188,189,190,191,1456,1457,1458,1459,1460,1461,1462,1463,1464,1465,1466,1467,1468,1469,1470,1471,1472,1473,1474,1475,1520,1521,1522,1523,1524,null,null,null,null,null,null,null,1488,1489,1490,1491,1492,1493,1494,1495,1496,1497,1498,1499,1500,1501,1502,1503,1504,1505,1506,1507,1508,1509,1510,1511,1512,1513,1514,null,null,8206,8207,null],
+  "windows-1256":[8364,1662,8218,402,8222,8230,8224,8225,710,8240,1657,8249,338,1670,1688,1672,1711,8216,8217,8220,8221,8226,8211,8212,1705,8482,1681,8250,339,8204,8205,1722,160,1548,162,163,164,165,166,167,168,169,1726,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,1563,187,188,189,190,1567,1729,1569,1570,1571,1572,1573,1574,1575,1576,1577,1578,1579,1580,1581,1582,1583,1584,1585,1586,1587,1588,1589,1590,215,1591,1592,1593,1594,1600,1601,1602,1603,224,1604,226,1605,1606,1607,1608,231,232,233,234,235,1609,1610,238,239,1611,1612,1613,1614,244,1615,1616,247,1617,249,1618,251,252,8206,8207,1746],
+  "windows-1257":[8364,129,8218,131,8222,8230,8224,8225,136,8240,138,8249,140,168,711,184,144,8216,8217,8220,8221,8226,8211,8212,152,8482,154,8250,156,175,731,159,160,null,162,163,164,null,166,167,216,169,342,171,172,173,174,198,176,177,178,179,180,181,182,183,248,185,343,187,188,189,190,230,260,302,256,262,196,197,280,274,268,201,377,278,290,310,298,315,352,323,325,211,332,213,214,215,370,321,346,362,220,379,381,223,261,303,257,263,228,229,281,275,269,233,378,279,291,311,299,316,353,324,326,243,333,245,246,247,371,322,347,363,252,380,382,729],
+  "windows-1258":[8364,129,8218,402,8222,8230,8224,8225,710,8240,138,8249,338,141,142,143,144,8216,8217,8220,8221,8226,8211,8212,732,8482,154,8250,339,157,158,376,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,258,196,197,198,199,200,201,202,203,768,205,206,207,272,209,777,211,212,416,214,215,216,217,218,219,220,431,771,223,224,225,226,259,228,229,230,231,232,233,234,235,769,237,238,239,273,241,803,243,244,417,246,247,248,249,250,251,252,432,8363,255],
+  "x-mac-cyrillic":[1040,1041,1042,1043,1044,1045,1046,1047,1048,1049,1050,1051,1052,1053,1054,1055,1056,1057,1058,1059,1060,1061,1062,1063,1064,1065,1066,1067,1068,1069,1070,1071,8224,176,1168,163,167,8226,182,1030,174,169,8482,1026,1106,8800,1027,1107,8734,177,8804,8805,1110,181,1169,1032,1028,1108,1031,1111,1033,1113,1034,1114,1112,1029,172,8730,402,8776,8710,171,187,8230,160,1035,1115,1036,1116,1109,8211,8212,8220,8221,8216,8217,247,8222,1038,1118,1039,1119,8470,1025,1105,1103,1072,1073,1074,1075,1076,1077,1078,1079,1080,1081,1082,1083,1084,1085,1086,1087,1088,1089,1090,1091,1092,1093,1094,1095,1096,1097,1098,1099,1100,1101,1102,8364]
+};
+
+// For strict environments where `this` inside the global scope
+// is `undefined`, take a pure object instead
+}(this || {}));
\ No newline at end of file
diff --git a/backend/node_modules/bson/vendor/text-encoding/lib/encoding.js b/backend/node_modules/bson/vendor/text-encoding/lib/encoding.js
new file mode 100644
index 0000000..f01991a
--- /dev/null
+++ b/backend/node_modules/bson/vendor/text-encoding/lib/encoding.js
@@ -0,0 +1,3301 @@
+// This is free and unencumbered software released into the public domain.
+// See LICENSE.md for more information.
+
+/**
+ * @fileoverview Global |this| required for resolving indexes in node.
+ * @suppress {globalThis}
+ */
+(function(global) {
+  'use strict';
+
+  //
+  // Utilities
+  //
+
+  /**
+   * @param {number} a The number to test.
+   * @param {number} min The minimum value in the range, inclusive.
+   * @param {number} max The maximum value in the range, inclusive.
+   * @return {boolean} True if a >= min and a <= max.
+   */
+  function inRange(a, min, max) {
+    return min <= a && a <= max;
+  }
+
+  /**
+   * @param {!Array.<*>} array The array to check.
+   * @param {*} item The item to look for in the array.
+   * @return {boolean} True if the item appears in the array.
+   */
+  function includes(array, item) {
+    return array.indexOf(item) !== -1;
+  }
+
+  var floor = Math.floor;
+
+  /**
+   * @param {*} o
+   * @return {Object}
+   */
+  function ToDictionary(o) {
+    if (o === undefined) return {};
+    if (o === Object(o)) return o;
+    throw TypeError('Could not convert argument to dictionary');
+  }
+
+  /**
+   * @param {string} string Input string of UTF-16 code units.
+   * @return {!Array.<number>} Code points.
+   */
+  function stringToCodePoints(string) {
+    // https://heycam.github.io/webidl/#dfn-obtain-unicode
+
+    // 1. Let S be the DOMString value.
+    var s = String(string);
+
+    // 2. Let n be the length of S.
+    var n = s.length;
+
+    // 3. Initialize i to 0.
+    var i = 0;
+
+    // 4. Initialize U to be an empty sequence of Unicode characters.
+    var u = [];
+
+    // 5. While i < n:
+    while (i < n) {
+
+      // 1. Let c be the code unit in S at index i.
+      var c = s.charCodeAt(i);
+
+      // 2. Depending on the value of c:
+
+      // c < 0xD800 or c > 0xDFFF
+      if (c < 0xD800 || c > 0xDFFF) {
+        // Append to U the Unicode character with code point c.
+        u.push(c);
+      }
+
+      // 0xDC00 ≤ c ≤ 0xDFFF
+      else if (0xDC00 <= c && c <= 0xDFFF) {
+        // Append to U a U+FFFD REPLACEMENT CHARACTER.
+        u.push(0xFFFD);
+      }
+
+      // 0xD800 ≤ c ≤ 0xDBFF
+      else if (0xD800 <= c && c <= 0xDBFF) {
+        // 1. If i = n−1, then append to U a U+FFFD REPLACEMENT
+        // CHARACTER.
+        if (i === n - 1) {
+          u.push(0xFFFD);
+        }
+        // 2. Otherwise, i < n−1:
+        else {
+          // 1. Let d be the code unit in S at index i+1.
+          var d = s.charCodeAt(i + 1);
+
+          // 2. If 0xDC00 ≤ d ≤ 0xDFFF, then:
+          if (0xDC00 <= d && d <= 0xDFFF) {
+            // 1. Let a be c & 0x3FF.
+            var a = c & 0x3FF;
+
+            // 2. Let b be d & 0x3FF.
+            var b = d & 0x3FF;
+
+            // 3. Append to U the Unicode character with code point
+            // 2^16+2^10*a+b.
+            u.push(0x10000 + (a << 10) + b);
+
+            // 4. Set i to i+1.
+            i += 1;
+          }
+
+          // 3. Otherwise, d < 0xDC00 or d > 0xDFFF. Append to U a
+          // U+FFFD REPLACEMENT CHARACTER.
+          else  {
+            u.push(0xFFFD);
+          }
+        }
+      }
+
+      // 3. Set i to i+1.
+      i += 1;
+    }
+
+    // 6. Return U.
+    return u;
+  }
+
+  /**
+   * @param {!Array.<number>} code_points Array of code points.
+   * @return {string} string String of UTF-16 code units.
+   */
+  function codePointsToString(code_points) {
+    var s = '';
+    for (var i = 0; i < code_points.length; ++i) {
+      var cp = code_points[i];
+      if (cp <= 0xFFFF) {
+        s += String.fromCharCode(cp);
+      } else {
+        cp -= 0x10000;
+        s += String.fromCharCode((cp >> 10) + 0xD800,
+                                 (cp & 0x3FF) + 0xDC00);
+      }
+    }
+    return s;
+  }
+
+
+  //
+  // Implementation of Encoding specification
+  // https://encoding.spec.whatwg.org/
+  //
+
+  //
+  // 4. Terminology
+  //
+
+  /**
+   * An ASCII byte is a byte in the range 0x00 to 0x7F, inclusive.
+   * @param {number} a The number to test.
+   * @return {boolean} True if a is in the range 0x00 to 0x7F, inclusive.
+   */
+  function isASCIIByte(a) {
+    return 0x00 <= a && a <= 0x7F;
+  }
+
+  /**
+   * An ASCII code point is a code point in the range U+0000 to
+   * U+007F, inclusive.
+   */
+  var isASCIICodePoint = isASCIIByte;
+
+
+  /**
+   * End-of-stream is a special token that signifies no more tokens
+   * are in the stream.
+   * @const
+   */ var end_of_stream = -1;
+
+  /**
+   * A stream represents an ordered sequence of tokens.
+   *
+   * @constructor
+   * @param {!(Array.<number>|Uint8Array)} tokens Array of tokens that provide
+   * the stream.
+   */
+  function Stream(tokens) {
+    /** @type {!Array.<number>} */
+    this.tokens = [].slice.call(tokens);
+    // Reversed as push/pop is more efficient than shift/unshift.
+    this.tokens.reverse();
+  }
+
+  Stream.prototype = {
+    /**
+     * @return {boolean} True if end-of-stream has been hit.
+     */
+    endOfStream: function() {
+      return !this.tokens.length;
+    },
+
+    /**
+     * When a token is read from a stream, the first token in the
+     * stream must be returned and subsequently removed, and
+     * end-of-stream must be returned otherwise.
+     *
+     * @return {number} Get the next token from the stream, or
+     * end_of_stream.
+     */
+     read: function() {
+      if (!this.tokens.length)
+        return end_of_stream;
+       return this.tokens.pop();
+     },
+
+    /**
+     * When one or more tokens are prepended to a stream, those tokens
+     * must be inserted, in given order, before the first token in the
+     * stream.
+     *
+     * @param {(number|!Array.<number>)} token The token(s) to prepend to the
+     * stream.
+     */
+    prepend: function(token) {
+      if (Array.isArray(token)) {
+        var tokens = /**@type {!Array.<number>}*/(token);
+        while (tokens.length)
+          this.tokens.push(tokens.pop());
+      } else {
+        this.tokens.push(token);
+      }
+    },
+
+    /**
+     * When one or more tokens are pushed to a stream, those tokens
+     * must be inserted, in given order, after the last token in the
+     * stream.
+     *
+     * @param {(number|!Array.<number>)} token The tokens(s) to push to the
+     * stream.
+     */
+    push: function(token) {
+      if (Array.isArray(token)) {
+        var tokens = /**@type {!Array.<number>}*/(token);
+        while (tokens.length)
+          this.tokens.unshift(tokens.shift());
+      } else {
+        this.tokens.unshift(token);
+      }
+    }
+  };
+
+  //
+  // 5. Encodings
+  //
+
+  // 5.1 Encoders and decoders
+
+  /** @const */
+  var finished = -1;
+
+  /**
+   * @param {boolean} fatal If true, decoding errors raise an exception.
+   * @param {number=} opt_code_point Override the standard fallback code point.
+   * @return {number} The code point to insert on a decoding error.
+   */
+  function decoderError(fatal, opt_code_point) {
+    if (fatal)
+      throw TypeError('Decoder error');
+    return opt_code_point || 0xFFFD;
+  }
+
+  /**
+   * @param {number} code_point The code point that could not be encoded.
+   * @return {number} Always throws, no value is actually returned.
+   */
+  function encoderError(code_point) {
+    throw TypeError('The code point ' + code_point + ' could not be encoded.');
+  }
+
+  /** @interface */
+  function Decoder() {}
+  Decoder.prototype = {
+    /**
+     * @param {Stream} stream The stream of bytes being decoded.
+     * @param {number} bite The next byte read from the stream.
+     * @return {?(number|!Array.<number>)} The next code point(s)
+     *     decoded, or null if not enough data exists in the input
+     *     stream to decode a complete code point, or |finished|.
+     */
+    handler: function(stream, bite) {}
+  };
+
+  /** @interface */
+  function Encoder() {}
+  Encoder.prototype = {
+    /**
+     * @param {Stream} stream The stream of code points being encoded.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit, or |finished|.
+     */
+    handler: function(stream, code_point) {}
+  };
+
+  // 5.2 Names and labels
+
+  // TODO: Define @typedef for Encoding: {name:string,labels:Array.<string>}
+  // https://github.com/google/closure-compiler/issues/247
+
+  /**
+   * @param {string} label The encoding label.
+   * @return {?{name:string,labels:Array.<string>}}
+   */
+  function getEncoding(label) {
+    // 1. Remove any leading and trailing ASCII whitespace from label.
+    label = String(label).trim().toLowerCase();
+
+    // 2. If label is an ASCII case-insensitive match for any of the
+    // labels listed in the table below, return the corresponding
+    // encoding, and failure otherwise.
+    if (Object.prototype.hasOwnProperty.call(label_to_encoding, label)) {
+      return label_to_encoding[label];
+    }
+    return null;
+  }
+
+  /**
+   * Encodings table: https://encoding.spec.whatwg.org/encodings.json
+   * @const
+   * @type {!Array.<{
+   *          heading: string,
+   *          encodings: Array.<{name:string,labels:Array.<string>}>
+   *        }>}
+   */
+  var encodings = [
+    {
+      "encodings": [
+        {
+          "labels": [
+            "unicode-1-1-utf-8",
+            "utf-8",
+            "utf8"
+          ],
+          "name": "UTF-8"
+        }
+      ],
+      "heading": "The Encoding"
+    },
+    {
+      "encodings": [
+        {
+          "labels": [
+            "866",
+            "cp866",
+            "csibm866",
+            "ibm866"
+          ],
+          "name": "IBM866"
+        },
+        {
+          "labels": [
+            "csisolatin2",
+            "iso-8859-2",
+            "iso-ir-101",
+            "iso8859-2",
+            "iso88592",
+            "iso_8859-2",
+            "iso_8859-2:1987",
+            "l2",
+            "latin2"
+          ],
+          "name": "ISO-8859-2"
+        },
+        {
+          "labels": [
+            "csisolatin3",
+            "iso-8859-3",
+            "iso-ir-109",
+            "iso8859-3",
+            "iso88593",
+            "iso_8859-3",
+            "iso_8859-3:1988",
+            "l3",
+            "latin3"
+          ],
+          "name": "ISO-8859-3"
+        },
+        {
+          "labels": [
+            "csisolatin4",
+            "iso-8859-4",
+            "iso-ir-110",
+            "iso8859-4",
+            "iso88594",
+            "iso_8859-4",
+            "iso_8859-4:1988",
+            "l4",
+            "latin4"
+          ],
+          "name": "ISO-8859-4"
+        },
+        {
+          "labels": [
+            "csisolatincyrillic",
+            "cyrillic",
+            "iso-8859-5",
+            "iso-ir-144",
+            "iso8859-5",
+            "iso88595",
+            "iso_8859-5",
+            "iso_8859-5:1988"
+          ],
+          "name": "ISO-8859-5"
+        },
+        {
+          "labels": [
+            "arabic",
+            "asmo-708",
+            "csiso88596e",
+            "csiso88596i",
+            "csisolatinarabic",
+            "ecma-114",
+            "iso-8859-6",
+            "iso-8859-6-e",
+            "iso-8859-6-i",
+            "iso-ir-127",
+            "iso8859-6",
+            "iso88596",
+            "iso_8859-6",
+            "iso_8859-6:1987"
+          ],
+          "name": "ISO-8859-6"
+        },
+        {
+          "labels": [
+            "csisolatingreek",
+            "ecma-118",
+            "elot_928",
+            "greek",
+            "greek8",
+            "iso-8859-7",
+            "iso-ir-126",
+            "iso8859-7",
+            "iso88597",
+            "iso_8859-7",
+            "iso_8859-7:1987",
+            "sun_eu_greek"
+          ],
+          "name": "ISO-8859-7"
+        },
+        {
+          "labels": [
+            "csiso88598e",
+            "csisolatinhebrew",
+            "hebrew",
+            "iso-8859-8",
+            "iso-8859-8-e",
+            "iso-ir-138",
+            "iso8859-8",
+            "iso88598",
+            "iso_8859-8",
+            "iso_8859-8:1988",
+            "visual"
+          ],
+          "name": "ISO-8859-8"
+        },
+        {
+          "labels": [
+            "csiso88598i",
+            "iso-8859-8-i",
+            "logical"
+          ],
+          "name": "ISO-8859-8-I"
+        },
+        {
+          "labels": [
+            "csisolatin6",
+            "iso-8859-10",
+            "iso-ir-157",
+            "iso8859-10",
+            "iso885910",
+            "l6",
+            "latin6"
+          ],
+          "name": "ISO-8859-10"
+        },
+        {
+          "labels": [
+            "iso-8859-13",
+            "iso8859-13",
+            "iso885913"
+          ],
+          "name": "ISO-8859-13"
+        },
+        {
+          "labels": [
+            "iso-8859-14",
+            "iso8859-14",
+            "iso885914"
+          ],
+          "name": "ISO-8859-14"
+        },
+        {
+          "labels": [
+            "csisolatin9",
+            "iso-8859-15",
+            "iso8859-15",
+            "iso885915",
+            "iso_8859-15",
+            "l9"
+          ],
+          "name": "ISO-8859-15"
+        },
+        {
+          "labels": [
+            "iso-8859-16"
+          ],
+          "name": "ISO-8859-16"
+        },
+        {
+          "labels": [
+            "cskoi8r",
+            "koi",
+            "koi8",
+            "koi8-r",
+            "koi8_r"
+          ],
+          "name": "KOI8-R"
+        },
+        {
+          "labels": [
+            "koi8-ru",
+            "koi8-u"
+          ],
+          "name": "KOI8-U"
+        },
+        {
+          "labels": [
+            "csmacintosh",
+            "mac",
+            "macintosh",
+            "x-mac-roman"
+          ],
+          "name": "macintosh"
+        },
+        {
+          "labels": [
+            "dos-874",
+            "iso-8859-11",
+            "iso8859-11",
+            "iso885911",
+            "tis-620",
+            "windows-874"
+          ],
+          "name": "windows-874"
+        },
+        {
+          "labels": [
+            "cp1250",
+            "windows-1250",
+            "x-cp1250"
+          ],
+          "name": "windows-1250"
+        },
+        {
+          "labels": [
+            "cp1251",
+            "windows-1251",
+            "x-cp1251"
+          ],
+          "name": "windows-1251"
+        },
+        {
+          "labels": [
+            "ansi_x3.4-1968",
+            "ascii",
+            "cp1252",
+            "cp819",
+            "csisolatin1",
+            "ibm819",
+            "iso-8859-1",
+            "iso-ir-100",
+            "iso8859-1",
+            "iso88591",
+            "iso_8859-1",
+            "iso_8859-1:1987",
+            "l1",
+            "latin1",
+            "us-ascii",
+            "windows-1252",
+            "x-cp1252"
+          ],
+          "name": "windows-1252"
+        },
+        {
+          "labels": [
+            "cp1253",
+            "windows-1253",
+            "x-cp1253"
+          ],
+          "name": "windows-1253"
+        },
+        {
+          "labels": [
+            "cp1254",
+            "csisolatin5",
+            "iso-8859-9",
+            "iso-ir-148",
+            "iso8859-9",
+            "iso88599",
+            "iso_8859-9",
+            "iso_8859-9:1989",
+            "l5",
+            "latin5",
+            "windows-1254",
+            "x-cp1254"
+          ],
+          "name": "windows-1254"
+        },
+        {
+          "labels": [
+            "cp1255",
+            "windows-1255",
+            "x-cp1255"
+          ],
+          "name": "windows-1255"
+        },
+        {
+          "labels": [
+            "cp1256",
+            "windows-1256",
+            "x-cp1256"
+          ],
+          "name": "windows-1256"
+        },
+        {
+          "labels": [
+            "cp1257",
+            "windows-1257",
+            "x-cp1257"
+          ],
+          "name": "windows-1257"
+        },
+        {
+          "labels": [
+            "cp1258",
+            "windows-1258",
+            "x-cp1258"
+          ],
+          "name": "windows-1258"
+        },
+        {
+          "labels": [
+            "x-mac-cyrillic",
+            "x-mac-ukrainian"
+          ],
+          "name": "x-mac-cyrillic"
+        }
+      ],
+      "heading": "Legacy single-byte encodings"
+    },
+    {
+      "encodings": [
+        {
+          "labels": [
+            "chinese",
+            "csgb2312",
+            "csiso58gb231280",
+            "gb2312",
+            "gb_2312",
+            "gb_2312-80",
+            "gbk",
+            "iso-ir-58",
+            "x-gbk"
+          ],
+          "name": "GBK"
+        },
+        {
+          "labels": [
+            "gb18030"
+          ],
+          "name": "gb18030"
+        }
+      ],
+      "heading": "Legacy multi-byte Chinese (simplified) encodings"
+    },
+    {
+      "encodings": [
+        {
+          "labels": [
+            "big5",
+            "big5-hkscs",
+            "cn-big5",
+            "csbig5",
+            "x-x-big5"
+          ],
+          "name": "Big5"
+        }
+      ],
+      "heading": "Legacy multi-byte Chinese (traditional) encodings"
+    },
+    {
+      "encodings": [
+        {
+          "labels": [
+            "cseucpkdfmtjapanese",
+            "euc-jp",
+            "x-euc-jp"
+          ],
+          "name": "EUC-JP"
+        },
+        {
+          "labels": [
+            "csiso2022jp",
+            "iso-2022-jp"
+          ],
+          "name": "ISO-2022-JP"
+        },
+        {
+          "labels": [
+            "csshiftjis",
+            "ms932",
+            "ms_kanji",
+            "shift-jis",
+            "shift_jis",
+            "sjis",
+            "windows-31j",
+            "x-sjis"
+          ],
+          "name": "Shift_JIS"
+        }
+      ],
+      "heading": "Legacy multi-byte Japanese encodings"
+    },
+    {
+      "encodings": [
+        {
+          "labels": [
+            "cseuckr",
+            "csksc56011987",
+            "euc-kr",
+            "iso-ir-149",
+            "korean",
+            "ks_c_5601-1987",
+            "ks_c_5601-1989",
+            "ksc5601",
+            "ksc_5601",
+            "windows-949"
+          ],
+          "name": "EUC-KR"
+        }
+      ],
+      "heading": "Legacy multi-byte Korean encodings"
+    },
+    {
+      "encodings": [
+        {
+          "labels": [
+            "csiso2022kr",
+            "hz-gb-2312",
+            "iso-2022-cn",
+            "iso-2022-cn-ext",
+            "iso-2022-kr"
+          ],
+          "name": "replacement"
+        },
+        {
+          "labels": [
+            "utf-16be"
+          ],
+          "name": "UTF-16BE"
+        },
+        {
+          "labels": [
+            "utf-16",
+            "utf-16le"
+          ],
+          "name": "UTF-16LE"
+        },
+        {
+          "labels": [
+            "x-user-defined"
+          ],
+          "name": "x-user-defined"
+        }
+      ],
+      "heading": "Legacy miscellaneous encodings"
+    }
+  ];
+
+  // Label to encoding registry.
+  /** @type {Object.<string,{name:string,labels:Array.<string>}>} */
+  var label_to_encoding = {};
+  encodings.forEach(function(category) {
+    category.encodings.forEach(function(encoding) {
+      encoding.labels.forEach(function(label) {
+        label_to_encoding[label] = encoding;
+      });
+    });
+  });
+
+  // Registry of of encoder/decoder factories, by encoding name.
+  /** @type {Object.<string, function({fatal:boolean}): Encoder>} */
+  var encoders = {};
+  /** @type {Object.<string, function({fatal:boolean}): Decoder>} */
+  var decoders = {};
+
+  //
+  // 6. Indexes
+  //
+
+  /**
+   * @param {number} pointer The |pointer| to search for.
+   * @param {(!Array.<?number>|undefined)} index The |index| to search within.
+   * @return {?number} The code point corresponding to |pointer| in |index|,
+   *     or null if |code point| is not in |index|.
+   */
+  function indexCodePointFor(pointer, index) {
+    if (!index) return null;
+    return index[pointer] || null;
+  }
+
+  /**
+   * @param {number} code_point The |code point| to search for.
+   * @param {!Array.<?number>} index The |index| to search within.
+   * @return {?number} The first pointer corresponding to |code point| in
+   *     |index|, or null if |code point| is not in |index|.
+   */
+  function indexPointerFor(code_point, index) {
+    var pointer = index.indexOf(code_point);
+    return pointer === -1 ? null : pointer;
+  }
+
+  /**
+   * @param {string} name Name of the index.
+   * @return {(!Array.<number>|!Array.<Array.<number>>)}
+   *  */
+  function index(name) {
+    if (!('encoding-indexes' in global)) {
+      throw Error("Indexes missing." +
+                  " Did you forget to include encoding-indexes.js first?");
+    }
+    return global['encoding-indexes'][name];
+  }
+
+  /**
+   * @param {number} pointer The |pointer| to search for in the gb18030 index.
+   * @return {?number} The code point corresponding to |pointer| in |index|,
+   *     or null if |code point| is not in the gb18030 index.
+   */
+  function indexGB18030RangesCodePointFor(pointer) {
+    // 1. If pointer is greater than 39419 and less than 189000, or
+    // pointer is greater than 1237575, return null.
+    if ((pointer > 39419 && pointer < 189000) || (pointer > 1237575))
+      return null;
+
+    // 2. If pointer is 7457, return code point U+E7C7.
+    if (pointer === 7457) return 0xE7C7;
+
+    // 3. Let offset be the last pointer in index gb18030 ranges that
+    // is equal to or less than pointer and let code point offset be
+    // its corresponding code point.
+    var offset = 0;
+    var code_point_offset = 0;
+    var idx = index('gb18030-ranges');
+    var i;
+    for (i = 0; i < idx.length; ++i) {
+      /** @type {!Array.<number>} */
+      var entry = idx[i];
+      if (entry[0] <= pointer) {
+        offset = entry[0];
+        code_point_offset = entry[1];
+      } else {
+        break;
+      }
+    }
+
+    // 4. Return a code point whose value is code point offset +
+    // pointer − offset.
+    return code_point_offset + pointer - offset;
+  }
+
+  /**
+   * @param {number} code_point The |code point| to locate in the gb18030 index.
+   * @return {number} The first pointer corresponding to |code point| in the
+   *     gb18030 index.
+   */
+  function indexGB18030RangesPointerFor(code_point) {
+    // 1. If code point is U+E7C7, return pointer 7457.
+    if (code_point === 0xE7C7) return 7457;
+
+    // 2. Let offset be the last code point in index gb18030 ranges
+    // that is equal to or less than code point and let pointer offset
+    // be its corresponding pointer.
+    var offset = 0;
+    var pointer_offset = 0;
+    var idx = index('gb18030-ranges');
+    var i;
+    for (i = 0; i < idx.length; ++i) {
+      /** @type {!Array.<number>} */
+      var entry = idx[i];
+      if (entry[1] <= code_point) {
+        offset = entry[1];
+        pointer_offset = entry[0];
+      } else {
+        break;
+      }
+    }
+
+    // 3. Return a pointer whose value is pointer offset + code point
+    // − offset.
+    return pointer_offset + code_point - offset;
+  }
+
+  /**
+   * @param {number} code_point The |code_point| to search for in the Shift_JIS
+   *     index.
+   * @return {?number} The code point corresponding to |pointer| in |index|,
+   *     or null if |code point| is not in the Shift_JIS index.
+   */
+  function indexShiftJISPointerFor(code_point) {
+    // 1. Let index be index jis0208 excluding all entries whose
+    // pointer is in the range 8272 to 8835, inclusive.
+    shift_jis_index = shift_jis_index ||
+      index('jis0208').map(function(code_point, pointer) {
+        return inRange(pointer, 8272, 8835) ? null : code_point;
+      });
+    var index_ = shift_jis_index;
+
+    // 2. Return the index pointer for code point in index.
+    return index_.indexOf(code_point);
+  }
+  var shift_jis_index;
+
+  /**
+   * @param {number} code_point The |code_point| to search for in the big5
+   *     index.
+   * @return {?number} The code point corresponding to |pointer| in |index|,
+   *     or null if |code point| is not in the big5 index.
+   */
+  function indexBig5PointerFor(code_point) {
+    // 1. Let index be index Big5 excluding all entries whose pointer
+    big5_index_no_hkscs = big5_index_no_hkscs ||
+      index('big5').map(function(code_point, pointer) {
+        return (pointer < (0xA1 - 0x81) * 157) ? null : code_point;
+      });
+    var index_ = big5_index_no_hkscs;
+
+    // 2. If code point is U+2550, U+255E, U+2561, U+256A, U+5341, or
+    // U+5345, return the last pointer corresponding to code point in
+    // index.
+    if (code_point === 0x2550 || code_point === 0x255E ||
+        code_point === 0x2561 || code_point === 0x256A ||
+        code_point === 0x5341 || code_point === 0x5345) {
+      return index_.lastIndexOf(code_point);
+    }
+
+    // 3. Return the index pointer for code point in index.
+    return indexPointerFor(code_point, index_);
+  }
+  var big5_index_no_hkscs;
+
+  //
+  // 8. API
+  //
+
+  /** @const */ var DEFAULT_ENCODING = 'utf-8';
+
+  // 8.1 Interface TextDecoder
+
+  /**
+   * @constructor
+   * @param {string=} label The label of the encoding;
+   *     defaults to 'utf-8'.
+   * @param {Object=} options
+   */
+  function TextDecoder(label, options) {
+    // Web IDL conventions
+    if (!(this instanceof TextDecoder))
+      throw TypeError('Called as a function. Did you forget \'new\'?');
+    label = label !== undefined ? String(label) : DEFAULT_ENCODING;
+    options = ToDictionary(options);
+
+    // A TextDecoder object has an associated encoding, decoder,
+    // stream, ignore BOM flag (initially unset), BOM seen flag
+    // (initially unset), error mode (initially replacement), and do
+    // not flush flag (initially unset).
+
+    /** @private */
+    this._encoding = null;
+    /** @private @type {?Decoder} */
+    this._decoder = null;
+    /** @private @type {boolean} */
+    this._ignoreBOM = false;
+    /** @private @type {boolean} */
+    this._BOMseen = false;
+    /** @private @type {string} */
+    this._error_mode = 'replacement';
+    /** @private @type {boolean} */
+    this._do_not_flush = false;
+
+
+    // 1. Let encoding be the result of getting an encoding from
+    // label.
+    var encoding = getEncoding(label);
+
+    // 2. If encoding is failure or replacement, throw a RangeError.
+    if (encoding === null || encoding.name === 'replacement')
+      throw RangeError('Unknown encoding: ' + label);
+    if (!decoders[encoding.name]) {
+      throw Error('Decoder not present.' +
+                  ' Did you forget to include encoding-indexes.js first?');
+    }
+
+    // 3. Let dec be a new TextDecoder object.
+    var dec = this;
+
+    // 4. Set dec's encoding to encoding.
+    dec._encoding = encoding;
+
+    // 5. If options's fatal member is true, set dec's error mode to
+    // fatal.
+    if (Boolean(options['fatal']))
+      dec._error_mode = 'fatal';
+
+    // 6. If options's ignoreBOM member is true, set dec's ignore BOM
+    // flag.
+    if (Boolean(options['ignoreBOM']))
+      dec._ignoreBOM = true;
+
+    // For pre-ES5 runtimes:
+    if (!Object.defineProperty) {
+      this.encoding = dec._encoding.name.toLowerCase();
+      this.fatal = dec._error_mode === 'fatal';
+      this.ignoreBOM = dec._ignoreBOM;
+    }
+
+    // 7. Return dec.
+    return dec;
+  }
+
+  if (Object.defineProperty) {
+    // The encoding attribute's getter must return encoding's name.
+    Object.defineProperty(TextDecoder.prototype, 'encoding', {
+      /** @this {TextDecoder} */
+      get: function() { return this._encoding.name.toLowerCase(); }
+    });
+
+    // The fatal attribute's getter must return true if error mode
+    // is fatal, and false otherwise.
+    Object.defineProperty(TextDecoder.prototype, 'fatal', {
+      /** @this {TextDecoder} */
+      get: function() { return this._error_mode === 'fatal'; }
+    });
+
+    // The ignoreBOM attribute's getter must return true if ignore
+    // BOM flag is set, and false otherwise.
+    Object.defineProperty(TextDecoder.prototype, 'ignoreBOM', {
+      /** @this {TextDecoder} */
+      get: function() { return this._ignoreBOM; }
+    });
+  }
+
+  /**
+   * @param {BufferSource=} input The buffer of bytes to decode.
+   * @param {Object=} options
+   * @return {string} The decoded string.
+   */
+  TextDecoder.prototype.decode = function decode(input, options) {
+    var bytes;
+    if (typeof input === 'object' && input instanceof ArrayBuffer) {
+      bytes = new Uint8Array(input);
+    } else if (typeof input === 'object' && 'buffer' in input &&
+               input.buffer instanceof ArrayBuffer) {
+      bytes = new Uint8Array(input.buffer,
+                             input.byteOffset,
+                             input.byteLength);
+    } else {
+      bytes = new Uint8Array(0);
+    }
+
+    options = ToDictionary(options);
+
+    // 1. If the do not flush flag is unset, set decoder to a new
+    // encoding's decoder, set stream to a new stream, and unset the
+    // BOM seen flag.
+    if (!this._do_not_flush) {
+      this._decoder = decoders[this._encoding.name]({
+        fatal: this._error_mode === 'fatal'});
+      this._BOMseen = false;
+    }
+
+    // 2. If options's stream is true, set the do not flush flag, and
+    // unset the do not flush flag otherwise.
+    this._do_not_flush = Boolean(options['stream']);
+
+    // 3. If input is given, push a copy of input to stream.
+    // TODO: Align with spec algorithm - maintain stream on instance.
+    var input_stream = new Stream(bytes);
+
+    // 4. Let output be a new stream.
+    var output = [];
+
+    /** @type {?(number|!Array.<number>)} */
+    var result;
+
+    // 5. While true:
+    while (true) {
+      // 1. Let token be the result of reading from stream.
+      var token = input_stream.read();
+
+      // 2. If token is end-of-stream and the do not flush flag is
+      // set, return output, serialized.
+      // TODO: Align with spec algorithm.
+      if (token === end_of_stream)
+        break;
+
+      // 3. Otherwise, run these subsubsteps:
+
+      // 1. Let result be the result of processing token for decoder,
+      // stream, output, and error mode.
+      result = this._decoder.handler(input_stream, token);
+
+      // 2. If result is finished, return output, serialized.
+      if (result === finished)
+        break;
+
+      if (result !== null) {
+        if (Array.isArray(result))
+          output.push.apply(output, /**@type {!Array.<number>}*/(result));
+        else
+          output.push(result);
+      }
+
+      // 3. Otherwise, if result is error, throw a TypeError.
+      // (Thrown in handler)
+
+      // 4. Otherwise, do nothing.
+    }
+    // TODO: Align with spec algorithm.
+    if (!this._do_not_flush) {
+      do {
+        result = this._decoder.handler(input_stream, input_stream.read());
+        if (result === finished)
+          break;
+        if (result === null)
+          continue;
+        if (Array.isArray(result))
+          output.push.apply(output, /**@type {!Array.<number>}*/(result));
+        else
+          output.push(result);
+      } while (!input_stream.endOfStream());
+      this._decoder = null;
+    }
+
+    // A TextDecoder object also has an associated serialize stream
+    // algorithm...
+    /**
+     * @param {!Array.<number>} stream
+     * @return {string}
+     * @this {TextDecoder}
+     */
+    function serializeStream(stream) {
+      // 1. Let token be the result of reading from stream.
+      // (Done in-place on array, rather than as a stream)
+
+      // 2. If encoding is UTF-8, UTF-16BE, or UTF-16LE, and ignore
+      // BOM flag and BOM seen flag are unset, run these subsubsteps:
+      if (includes(['UTF-8', 'UTF-16LE', 'UTF-16BE'], this._encoding.name) &&
+          !this._ignoreBOM && !this._BOMseen) {
+        if (stream.length > 0 && stream[0] === 0xFEFF) {
+          // 1. If token is U+FEFF, set BOM seen flag.
+          this._BOMseen = true;
+          stream.shift();
+        } else if (stream.length > 0) {
+          // 2. Otherwise, if token is not end-of-stream, set BOM seen
+          // flag and append token to stream.
+          this._BOMseen = true;
+        } else {
+          // 3. Otherwise, if token is not end-of-stream, append token
+          // to output.
+          // (no-op)
+        }
+      }
+      // 4. Otherwise, return output.
+      return codePointsToString(stream);
+    }
+
+    return serializeStream.call(this, output);
+  };
+
+  // 8.2 Interface TextEncoder
+
+  /**
+   * @constructor
+   * @param {string=} label The label of the encoding. NONSTANDARD.
+   * @param {Object=} options NONSTANDARD.
+   */
+  function TextEncoder(label, options) {
+    // Web IDL conventions
+    if (!(this instanceof TextEncoder))
+      throw TypeError('Called as a function. Did you forget \'new\'?');
+    options = ToDictionary(options);
+
+    // A TextEncoder object has an associated encoding and encoder.
+
+    /** @private */
+    this._encoding = null;
+    /** @private @type {?Encoder} */
+    this._encoder = null;
+
+    // Non-standard
+    /** @private @type {boolean} */
+    this._do_not_flush = false;
+    /** @private @type {string} */
+    this._fatal = Boolean(options['fatal']) ? 'fatal' : 'replacement';
+
+    // 1. Let enc be a new TextEncoder object.
+    var enc = this;
+
+    // 2. Set enc's encoding to UTF-8's encoder.
+    if (Boolean(options['NONSTANDARD_allowLegacyEncoding'])) {
+      // NONSTANDARD behavior.
+      label = label !== undefined ? String(label) : DEFAULT_ENCODING;
+      var encoding = getEncoding(label);
+      if (encoding === null || encoding.name === 'replacement')
+        throw RangeError('Unknown encoding: ' + label);
+      if (!encoders[encoding.name]) {
+        throw Error('Encoder not present.' +
+                    ' Did you forget to include encoding-indexes.js first?');
+      }
+      enc._encoding = encoding;
+    } else {
+      // Standard behavior.
+      enc._encoding = getEncoding('utf-8');
+
+      if (label !== undefined && 'console' in global) {
+        console.warn('TextEncoder constructor called with encoding label, '
+                     + 'which is ignored.');
+      }
+    }
+
+    // For pre-ES5 runtimes:
+    if (!Object.defineProperty)
+      this.encoding = enc._encoding.name.toLowerCase();
+
+    // 3. Return enc.
+    return enc;
+  }
+
+  if (Object.defineProperty) {
+    // The encoding attribute's getter must return encoding's name.
+    Object.defineProperty(TextEncoder.prototype, 'encoding', {
+      /** @this {TextEncoder} */
+      get: function() { return this._encoding.name.toLowerCase(); }
+    });
+  }
+
+  /**
+   * @param {string=} opt_string The string to encode.
+   * @param {Object=} options
+   * @return {!Uint8Array} Encoded bytes, as a Uint8Array.
+   */
+  TextEncoder.prototype.encode = function encode(opt_string, options) {
+    opt_string = opt_string === undefined ? '' : String(opt_string);
+    options = ToDictionary(options);
+
+    // NOTE: This option is nonstandard. None of the encodings
+    // permitted for encoding (i.e. UTF-8, UTF-16) are stateful when
+    // the input is a USVString so streaming is not necessary.
+    if (!this._do_not_flush)
+      this._encoder = encoders[this._encoding.name]({
+        fatal: this._fatal === 'fatal'});
+    this._do_not_flush = Boolean(options['stream']);
+
+    // 1. Convert input to a stream.
+    var input = new Stream(stringToCodePoints(opt_string));
+
+    // 2. Let output be a new stream
+    var output = [];
+
+    /** @type {?(number|!Array.<number>)} */
+    var result;
+    // 3. While true, run these substeps:
+    while (true) {
+      // 1. Let token be the result of reading from input.
+      var token = input.read();
+      if (token === end_of_stream)
+        break;
+      // 2. Let result be the result of processing token for encoder,
+      // input, output.
+      result = this._encoder.handler(input, token);
+      if (result === finished)
+        break;
+      if (Array.isArray(result))
+        output.push.apply(output, /**@type {!Array.<number>}*/(result));
+      else
+        output.push(result);
+    }
+    // TODO: Align with spec algorithm.
+    if (!this._do_not_flush) {
+      while (true) {
+        result = this._encoder.handler(input, input.read());
+        if (result === finished)
+          break;
+        if (Array.isArray(result))
+          output.push.apply(output, /**@type {!Array.<number>}*/(result));
+        else
+          output.push(result);
+      }
+      this._encoder = null;
+    }
+    // 3. If result is finished, convert output into a byte sequence,
+    // and then return a Uint8Array object wrapping an ArrayBuffer
+    // containing output.
+    return new Uint8Array(output);
+  };
+
+
+  //
+  // 9. The encoding
+  //
+
+  // 9.1 utf-8
+
+  // 9.1.1 utf-8 decoder
+  /**
+   * @constructor
+   * @implements {Decoder}
+   * @param {{fatal: boolean}} options
+   */
+  function UTF8Decoder(options) {
+    var fatal = options.fatal;
+
+    // utf-8's decoder's has an associated utf-8 code point, utf-8
+    // bytes seen, and utf-8 bytes needed (all initially 0), a utf-8
+    // lower boundary (initially 0x80), and a utf-8 upper boundary
+    // (initially 0xBF).
+    var /** @type {number} */ utf8_code_point = 0,
+        /** @type {number} */ utf8_bytes_seen = 0,
+        /** @type {number} */ utf8_bytes_needed = 0,
+        /** @type {number} */ utf8_lower_boundary = 0x80,
+        /** @type {number} */ utf8_upper_boundary = 0xBF;
+
+    /**
+     * @param {Stream} stream The stream of bytes being decoded.
+     * @param {number} bite The next byte read from the stream.
+     * @return {?(number|!Array.<number>)} The next code point(s)
+     *     decoded, or null if not enough data exists in the input
+     *     stream to decode a complete code point.
+     */
+    this.handler = function(stream, bite) {
+      // 1. If byte is end-of-stream and utf-8 bytes needed is not 0,
+      // set utf-8 bytes needed to 0 and return error.
+      if (bite === end_of_stream && utf8_bytes_needed !== 0) {
+        utf8_bytes_needed = 0;
+        return decoderError(fatal);
+      }
+
+      // 2. If byte is end-of-stream, return finished.
+      if (bite === end_of_stream)
+        return finished;
+
+      // 3. If utf-8 bytes needed is 0, based on byte:
+      if (utf8_bytes_needed === 0) {
+
+        // 0x00 to 0x7F
+        if (inRange(bite, 0x00, 0x7F)) {
+          // Return a code point whose value is byte.
+          return bite;
+        }
+
+        // 0xC2 to 0xDF
+        else if (inRange(bite, 0xC2, 0xDF)) {
+          // 1. Set utf-8 bytes needed to 1.
+          utf8_bytes_needed = 1;
+
+          // 2. Set UTF-8 code point to byte & 0x1F.
+          utf8_code_point = bite & 0x1F;
+        }
+
+        // 0xE0 to 0xEF
+        else if (inRange(bite, 0xE0, 0xEF)) {
+          // 1. If byte is 0xE0, set utf-8 lower boundary to 0xA0.
+          if (bite === 0xE0)
+            utf8_lower_boundary = 0xA0;
+          // 2. If byte is 0xED, set utf-8 upper boundary to 0x9F.
+          if (bite === 0xED)
+            utf8_upper_boundary = 0x9F;
+          // 3. Set utf-8 bytes needed to 2.
+          utf8_bytes_needed = 2;
+          // 4. Set UTF-8 code point to byte & 0xF.
+          utf8_code_point = bite & 0xF;
+        }
+
+        // 0xF0 to 0xF4
+        else if (inRange(bite, 0xF0, 0xF4)) {
+          // 1. If byte is 0xF0, set utf-8 lower boundary to 0x90.
+          if (bite === 0xF0)
+            utf8_lower_boundary = 0x90;
+          // 2. If byte is 0xF4, set utf-8 upper boundary to 0x8F.
+          if (bite === 0xF4)
+            utf8_upper_boundary = 0x8F;
+          // 3. Set utf-8 bytes needed to 3.
+          utf8_bytes_needed = 3;
+          // 4. Set UTF-8 code point to byte & 0x7.
+          utf8_code_point = bite & 0x7;
+        }
+
+        // Otherwise
+        else {
+          // Return error.
+          return decoderError(fatal);
+        }
+
+        // Return continue.
+        return null;
+      }
+
+      // 4. If byte is not in the range utf-8 lower boundary to utf-8
+      // upper boundary, inclusive, run these substeps:
+      if (!inRange(bite, utf8_lower_boundary, utf8_upper_boundary)) {
+
+        // 1. Set utf-8 code point, utf-8 bytes needed, and utf-8
+        // bytes seen to 0, set utf-8 lower boundary to 0x80, and set
+        // utf-8 upper boundary to 0xBF.
+        utf8_code_point = utf8_bytes_needed = utf8_bytes_seen = 0;
+        utf8_lower_boundary = 0x80;
+        utf8_upper_boundary = 0xBF;
+
+        // 2. Prepend byte to stream.
+        stream.prepend(bite);
+
+        // 3. Return error.
+        return decoderError(fatal);
+      }
+
+      // 5. Set utf-8 lower boundary to 0x80 and utf-8 upper boundary
+      // to 0xBF.
+      utf8_lower_boundary = 0x80;
+      utf8_upper_boundary = 0xBF;
+
+      // 6. Set UTF-8 code point to (UTF-8 code point << 6) | (byte &
+      // 0x3F)
+      utf8_code_point = (utf8_code_point << 6) | (bite & 0x3F);
+
+      // 7. Increase utf-8 bytes seen by one.
+      utf8_bytes_seen += 1;
+
+      // 8. If utf-8 bytes seen is not equal to utf-8 bytes needed,
+      // continue.
+      if (utf8_bytes_seen !== utf8_bytes_needed)
+        return null;
+
+      // 9. Let code point be utf-8 code point.
+      var code_point = utf8_code_point;
+
+      // 10. Set utf-8 code point, utf-8 bytes needed, and utf-8 bytes
+      // seen to 0.
+      utf8_code_point = utf8_bytes_needed = utf8_bytes_seen = 0;
+
+      // 11. Return a code point whose value is code point.
+      return code_point;
+    };
+  }
+
+  // 9.1.2 utf-8 encoder
+  /**
+   * @constructor
+   * @implements {Encoder}
+   * @param {{fatal: boolean}} options
+   */
+  function UTF8Encoder(options) {
+    var fatal = options.fatal;
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    this.handler = function(stream, code_point) {
+      // 1. If code point is end-of-stream, return finished.
+      if (code_point === end_of_stream)
+        return finished;
+
+      // 2. If code point is an ASCII code point, return a byte whose
+      // value is code point.
+      if (isASCIICodePoint(code_point))
+        return code_point;
+
+      // 3. Set count and offset based on the range code point is in:
+      var count, offset;
+      // U+0080 to U+07FF, inclusive:
+      if (inRange(code_point, 0x0080, 0x07FF)) {
+        // 1 and 0xC0
+        count = 1;
+        offset = 0xC0;
+      }
+      // U+0800 to U+FFFF, inclusive:
+      else if (inRange(code_point, 0x0800, 0xFFFF)) {
+        // 2 and 0xE0
+        count = 2;
+        offset = 0xE0;
+      }
+      // U+10000 to U+10FFFF, inclusive:
+      else if (inRange(code_point, 0x10000, 0x10FFFF)) {
+        // 3 and 0xF0
+        count = 3;
+        offset = 0xF0;
+      }
+
+      // 4. Let bytes be a byte sequence whose first byte is (code
+      // point >> (6 × count)) + offset.
+      var bytes = [(code_point >> (6 * count)) + offset];
+
+      // 5. Run these substeps while count is greater than 0:
+      while (count > 0) {
+
+        // 1. Set temp to code point >> (6 × (count − 1)).
+        var temp = code_point >> (6 * (count - 1));
+
+        // 2. Append to bytes 0x80 | (temp & 0x3F).
+        bytes.push(0x80 | (temp & 0x3F));
+
+        // 3. Decrease count by one.
+        count -= 1;
+      }
+
+      // 6. Return bytes bytes, in order.
+      return bytes;
+    };
+  }
+
+  /** @param {{fatal: boolean}} options */
+  encoders['UTF-8'] = function(options) {
+    return new UTF8Encoder(options);
+  };
+  /** @param {{fatal: boolean}} options */
+  decoders['UTF-8'] = function(options) {
+    return new UTF8Decoder(options);
+  };
+
+  //
+  // 10. Legacy single-byte encodings
+  //
+
+  // 10.1 single-byte decoder
+  /**
+   * @constructor
+   * @implements {Decoder}
+   * @param {!Array.<number>} index The encoding index.
+   * @param {{fatal: boolean}} options
+   */
+  function SingleByteDecoder(index, options) {
+    var fatal = options.fatal;
+    /**
+     * @param {Stream} stream The stream of bytes being decoded.
+     * @param {number} bite The next byte read from the stream.
+     * @return {?(number|!Array.<number>)} The next code point(s)
+     *     decoded, or null if not enough data exists in the input
+     *     stream to decode a complete code point.
+     */
+    this.handler = function(stream, bite) {
+      // 1. If byte is end-of-stream, return finished.
+      if (bite === end_of_stream)
+        return finished;
+
+      // 2. If byte is an ASCII byte, return a code point whose value
+      // is byte.
+      if (isASCIIByte(bite))
+        return bite;
+
+      // 3. Let code point be the index code point for byte − 0x80 in
+      // index single-byte.
+      var code_point = index[bite - 0x80];
+
+      // 4. If code point is null, return error.
+      if (code_point === null)
+        return decoderError(fatal);
+
+      // 5. Return a code point whose value is code point.
+      return code_point;
+    };
+  }
+
+  // 10.2 single-byte encoder
+  /**
+   * @constructor
+   * @implements {Encoder}
+   * @param {!Array.<?number>} index The encoding index.
+   * @param {{fatal: boolean}} options
+   */
+  function SingleByteEncoder(index, options) {
+    var fatal = options.fatal;
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    this.handler = function(stream, code_point) {
+      // 1. If code point is end-of-stream, return finished.
+      if (code_point === end_of_stream)
+        return finished;
+
+      // 2. If code point is an ASCII code point, return a byte whose
+      // value is code point.
+      if (isASCIICodePoint(code_point))
+        return code_point;
+
+      // 3. Let pointer be the index pointer for code point in index
+      // single-byte.
+      var pointer = indexPointerFor(code_point, index);
+
+      // 4. If pointer is null, return error with code point.
+      if (pointer === null)
+        encoderError(code_point);
+
+      // 5. Return a byte whose value is pointer + 0x80.
+      return pointer + 0x80;
+    };
+  }
+
+  (function() {
+    if (!('encoding-indexes' in global))
+      return;
+    encodings.forEach(function(category) {
+      if (category.heading !== 'Legacy single-byte encodings')
+        return;
+      category.encodings.forEach(function(encoding) {
+        var name = encoding.name;
+        var idx = index(name.toLowerCase());
+        /** @param {{fatal: boolean}} options */
+        decoders[name] = function(options) {
+          return new SingleByteDecoder(idx, options);
+        };
+        /** @param {{fatal: boolean}} options */
+        encoders[name] = function(options) {
+          return new SingleByteEncoder(idx, options);
+        };
+      });
+    });
+  }());
+
+  //
+  // 11. Legacy multi-byte Chinese (simplified) encodings
+  //
+
+  // 11.1 gbk
+
+  // 11.1.1 gbk decoder
+  // gbk's decoder is gb18030's decoder.
+  /** @param {{fatal: boolean}} options */
+  decoders['GBK'] = function(options) {
+    return new GB18030Decoder(options);
+  };
+
+  // 11.1.2 gbk encoder
+  // gbk's encoder is gb18030's encoder with its gbk flag set.
+  /** @param {{fatal: boolean}} options */
+  encoders['GBK'] = function(options) {
+    return new GB18030Encoder(options, true);
+  };
+
+  // 11.2 gb18030
+
+  // 11.2.1 gb18030 decoder
+  /**
+   * @constructor
+   * @implements {Decoder}
+   * @param {{fatal: boolean}} options
+   */
+  function GB18030Decoder(options) {
+    var fatal = options.fatal;
+    // gb18030's decoder has an associated gb18030 first, gb18030
+    // second, and gb18030 third (all initially 0x00).
+    var /** @type {number} */ gb18030_first = 0x00,
+        /** @type {number} */ gb18030_second = 0x00,
+        /** @type {number} */ gb18030_third = 0x00;
+    /**
+     * @param {Stream} stream The stream of bytes being decoded.
+     * @param {number} bite The next byte read from the stream.
+     * @return {?(number|!Array.<number>)} The next code point(s)
+     *     decoded, or null if not enough data exists in the input
+     *     stream to decode a complete code point.
+     */
+    this.handler = function(stream, bite) {
+      // 1. If byte is end-of-stream and gb18030 first, gb18030
+      // second, and gb18030 third are 0x00, return finished.
+      if (bite === end_of_stream && gb18030_first === 0x00 &&
+          gb18030_second === 0x00 && gb18030_third === 0x00) {
+        return finished;
+      }
+      // 2. If byte is end-of-stream, and gb18030 first, gb18030
+      // second, or gb18030 third is not 0x00, set gb18030 first,
+      // gb18030 second, and gb18030 third to 0x00, and return error.
+      if (bite === end_of_stream &&
+          (gb18030_first !== 0x00 || gb18030_second !== 0x00 ||
+           gb18030_third !== 0x00)) {
+        gb18030_first = 0x00;
+        gb18030_second = 0x00;
+        gb18030_third = 0x00;
+        decoderError(fatal);
+      }
+      var code_point;
+      // 3. If gb18030 third is not 0x00, run these substeps:
+      if (gb18030_third !== 0x00) {
+        // 1. Let code point be null.
+        code_point = null;
+        // 2. If byte is in the range 0x30 to 0x39, inclusive, set
+        // code point to the index gb18030 ranges code point for
+        // (((gb18030 first − 0x81) × 10 + gb18030 second − 0x30) ×
+        // 126 + gb18030 third − 0x81) × 10 + byte − 0x30.
+        if (inRange(bite, 0x30, 0x39)) {
+          code_point = indexGB18030RangesCodePointFor(
+              (((gb18030_first - 0x81) * 10 + gb18030_second - 0x30) * 126 +
+               gb18030_third - 0x81) * 10 + bite - 0x30);
+        }
+
+        // 3. Let buffer be a byte sequence consisting of gb18030
+        // second, gb18030 third, and byte, in order.
+        var buffer = [gb18030_second, gb18030_third, bite];
+
+        // 4. Set gb18030 first, gb18030 second, and gb18030 third to
+        // 0x00.
+        gb18030_first = 0x00;
+        gb18030_second = 0x00;
+        gb18030_third = 0x00;
+
+        // 5. If code point is null, prepend buffer to stream and
+        // return error.
+        if (code_point === null) {
+          stream.prepend(buffer);
+          return decoderError(fatal);
+        }
+
+        // 6. Return a code point whose value is code point.
+        return code_point;
+      }
+
+      // 4. If gb18030 second is not 0x00, run these substeps:
+      if (gb18030_second !== 0x00) {
+
+        // 1. If byte is in the range 0x81 to 0xFE, inclusive, set
+        // gb18030 third to byte and return continue.
+        if (inRange(bite, 0x81, 0xFE)) {
+          gb18030_third = bite;
+          return null;
+        }
+
+        // 2. Prepend gb18030 second followed by byte to stream, set
+        // gb18030 first and gb18030 second to 0x00, and return error.
+        stream.prepend([gb18030_second, bite]);
+        gb18030_first = 0x00;
+        gb18030_second = 0x00;
+        return decoderError(fatal);
+      }
+
+      // 5. If gb18030 first is not 0x00, run these substeps:
+      if (gb18030_first !== 0x00) {
+
+        // 1. If byte is in the range 0x30 to 0x39, inclusive, set
+        // gb18030 second to byte and return continue.
+        if (inRange(bite, 0x30, 0x39)) {
+          gb18030_second = bite;
+          return null;
+        }
+
+        // 2. Let lead be gb18030 first, let pointer be null, and set
+        // gb18030 first to 0x00.
+        var lead = gb18030_first;
+        var pointer = null;
+        gb18030_first = 0x00;
+
+        // 3. Let offset be 0x40 if byte is less than 0x7F and 0x41
+        // otherwise.
+        var offset = bite < 0x7F ? 0x40 : 0x41;
+
+        // 4. If byte is in the range 0x40 to 0x7E, inclusive, or 0x80
+        // to 0xFE, inclusive, set pointer to (lead − 0x81) × 190 +
+        // (byte − offset).
+        if (inRange(bite, 0x40, 0x7E) || inRange(bite, 0x80, 0xFE))
+          pointer = (lead - 0x81) * 190 + (bite - offset);
+
+        // 5. Let code point be null if pointer is null and the index
+        // code point for pointer in index gb18030 otherwise.
+        code_point = pointer === null ? null :
+            indexCodePointFor(pointer, index('gb18030'));
+
+        // 6. If code point is null and byte is an ASCII byte, prepend
+        // byte to stream.
+        if (code_point === null && isASCIIByte(bite))
+          stream.prepend(bite);
+
+        // 7. If code point is null, return error.
+        if (code_point === null)
+          return decoderError(fatal);
+
+        // 8. Return a code point whose value is code point.
+        return code_point;
+      }
+
+      // 6. If byte is an ASCII byte, return a code point whose value
+      // is byte.
+      if (isASCIIByte(bite))
+        return bite;
+
+      // 7. If byte is 0x80, return code point U+20AC.
+      if (bite === 0x80)
+        return 0x20AC;
+
+      // 8. If byte is in the range 0x81 to 0xFE, inclusive, set
+      // gb18030 first to byte and return continue.
+      if (inRange(bite, 0x81, 0xFE)) {
+        gb18030_first = bite;
+        return null;
+      }
+
+      // 9. Return error.
+      return decoderError(fatal);
+    };
+  }
+
+  // 11.2.2 gb18030 encoder
+  /**
+   * @constructor
+   * @implements {Encoder}
+   * @param {{fatal: boolean}} options
+   * @param {boolean=} gbk_flag
+   */
+  function GB18030Encoder(options, gbk_flag) {
+    var fatal = options.fatal;
+    // gb18030's decoder has an associated gbk flag (initially unset).
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    this.handler = function(stream, code_point) {
+      // 1. If code point is end-of-stream, return finished.
+      if (code_point === end_of_stream)
+        return finished;
+
+      // 2. If code point is an ASCII code point, return a byte whose
+      // value is code point.
+      if (isASCIICodePoint(code_point))
+        return code_point;
+
+      // 3. If code point is U+E5E5, return error with code point.
+      if (code_point === 0xE5E5)
+        return encoderError(code_point);
+
+      // 4. If the gbk flag is set and code point is U+20AC, return
+      // byte 0x80.
+      if (gbk_flag && code_point === 0x20AC)
+        return 0x80;
+
+      // 5. Let pointer be the index pointer for code point in index
+      // gb18030.
+      var pointer = indexPointerFor(code_point, index('gb18030'));
+
+      // 6. If pointer is not null, run these substeps:
+      if (pointer !== null) {
+
+        // 1. Let lead be floor(pointer / 190) + 0x81.
+        var lead = floor(pointer / 190) + 0x81;
+
+        // 2. Let trail be pointer % 190.
+        var trail = pointer % 190;
+
+        // 3. Let offset be 0x40 if trail is less than 0x3F and 0x41 otherwise.
+        var offset = trail < 0x3F ? 0x40 : 0x41;
+
+        // 4. Return two bytes whose values are lead and trail + offset.
+        return [lead, trail + offset];
+      }
+
+      // 7. If gbk flag is set, return error with code point.
+      if (gbk_flag)
+        return encoderError(code_point);
+
+      // 8. Set pointer to the index gb18030 ranges pointer for code
+      // point.
+      pointer = indexGB18030RangesPointerFor(code_point);
+
+      // 9. Let byte1 be floor(pointer / 10 / 126 / 10).
+      var byte1 = floor(pointer / 10 / 126 / 10);
+
+      // 10. Set pointer to pointer − byte1 × 10 × 126 × 10.
+      pointer = pointer - byte1 * 10 * 126 * 10;
+
+      // 11. Let byte2 be floor(pointer / 10 / 126).
+      var byte2 = floor(pointer / 10 / 126);
+
+      // 12. Set pointer to pointer − byte2 × 10 × 126.
+      pointer = pointer - byte2 * 10 * 126;
+
+      // 13. Let byte3 be floor(pointer / 10).
+      var byte3 = floor(pointer / 10);
+
+      // 14. Let byte4 be pointer − byte3 × 10.
+      var byte4 = pointer - byte3 * 10;
+
+      // 15. Return four bytes whose values are byte1 + 0x81, byte2 +
+      // 0x30, byte3 + 0x81, byte4 + 0x30.
+      return [byte1 + 0x81,
+              byte2 + 0x30,
+              byte3 + 0x81,
+              byte4 + 0x30];
+    };
+  }
+
+  /** @param {{fatal: boolean}} options */
+  encoders['gb18030'] = function(options) {
+    return new GB18030Encoder(options);
+  };
+  /** @param {{fatal: boolean}} options */
+  decoders['gb18030'] = function(options) {
+    return new GB18030Decoder(options);
+  };
+
+
+  //
+  // 12. Legacy multi-byte Chinese (traditional) encodings
+  //
+
+  // 12.1 Big5
+
+  // 12.1.1 Big5 decoder
+  /**
+   * @constructor
+   * @implements {Decoder}
+   * @param {{fatal: boolean}} options
+   */
+  function Big5Decoder(options) {
+    var fatal = options.fatal;
+    // Big5's decoder has an associated Big5 lead (initially 0x00).
+    var /** @type {number} */ Big5_lead = 0x00;
+
+    /**
+     * @param {Stream} stream The stream of bytes being decoded.
+     * @param {number} bite The next byte read from the stream.
+     * @return {?(number|!Array.<number>)} The next code point(s)
+     *     decoded, or null if not enough data exists in the input
+     *     stream to decode a complete code point.
+     */
+    this.handler = function(stream, bite) {
+      // 1. If byte is end-of-stream and Big5 lead is not 0x00, set
+      // Big5 lead to 0x00 and return error.
+      if (bite === end_of_stream && Big5_lead !== 0x00) {
+        Big5_lead = 0x00;
+        return decoderError(fatal);
+      }
+
+      // 2. If byte is end-of-stream and Big5 lead is 0x00, return
+      // finished.
+      if (bite === end_of_stream && Big5_lead === 0x00)
+        return finished;
+
+      // 3. If Big5 lead is not 0x00, let lead be Big5 lead, let
+      // pointer be null, set Big5 lead to 0x00, and then run these
+      // substeps:
+      if (Big5_lead !== 0x00) {
+        var lead = Big5_lead;
+        var pointer = null;
+        Big5_lead = 0x00;
+
+        // 1. Let offset be 0x40 if byte is less than 0x7F and 0x62
+        // otherwise.
+        var offset = bite < 0x7F ? 0x40 : 0x62;
+
+        // 2. If byte is in the range 0x40 to 0x7E, inclusive, or 0xA1
+        // to 0xFE, inclusive, set pointer to (lead − 0x81) × 157 +
+        // (byte − offset).
+        if (inRange(bite, 0x40, 0x7E) || inRange(bite, 0xA1, 0xFE))
+          pointer = (lead - 0x81) * 157 + (bite - offset);
+
+        // 3. If there is a row in the table below whose first column
+        // is pointer, return the two code points listed in its second
+        // column
+        // Pointer | Code points
+        // --------+--------------
+        // 1133    | U+00CA U+0304
+        // 1135    | U+00CA U+030C
+        // 1164    | U+00EA U+0304
+        // 1166    | U+00EA U+030C
+        switch (pointer) {
+          case 1133: return [0x00CA, 0x0304];
+          case 1135: return [0x00CA, 0x030C];
+          case 1164: return [0x00EA, 0x0304];
+          case 1166: return [0x00EA, 0x030C];
+        }
+
+        // 4. Let code point be null if pointer is null and the index
+        // code point for pointer in index Big5 otherwise.
+        var code_point = (pointer === null) ? null :
+            indexCodePointFor(pointer, index('big5'));
+
+        // 5. If code point is null and byte is an ASCII byte, prepend
+        // byte to stream.
+        if (code_point === null && isASCIIByte(bite))
+          stream.prepend(bite);
+
+        // 6. If code point is null, return error.
+        if (code_point === null)
+          return decoderError(fatal);
+
+        // 7. Return a code point whose value is code point.
+        return code_point;
+      }
+
+      // 4. If byte is an ASCII byte, return a code point whose value
+      // is byte.
+      if (isASCIIByte(bite))
+        return bite;
+
+      // 5. If byte is in the range 0x81 to 0xFE, inclusive, set Big5
+      // lead to byte and return continue.
+      if (inRange(bite, 0x81, 0xFE)) {
+        Big5_lead = bite;
+        return null;
+      }
+
+      // 6. Return error.
+      return decoderError(fatal);
+    };
+  }
+
+  // 12.1.2 Big5 encoder
+  /**
+   * @constructor
+   * @implements {Encoder}
+   * @param {{fatal: boolean}} options
+   */
+  function Big5Encoder(options) {
+    var fatal = options.fatal;
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    this.handler = function(stream, code_point) {
+      // 1. If code point is end-of-stream, return finished.
+      if (code_point === end_of_stream)
+        return finished;
+
+      // 2. If code point is an ASCII code point, return a byte whose
+      // value is code point.
+      if (isASCIICodePoint(code_point))
+        return code_point;
+
+      // 3. Let pointer be the index Big5 pointer for code point.
+      var pointer = indexBig5PointerFor(code_point);
+
+      // 4. If pointer is null, return error with code point.
+      if (pointer === null)
+        return encoderError(code_point);
+
+      // 5. Let lead be floor(pointer / 157) + 0x81.
+      var lead = floor(pointer / 157) + 0x81;
+
+      // 6. If lead is less than 0xA1, return error with code point.
+      if (lead < 0xA1)
+        return encoderError(code_point);
+
+      // 7. Let trail be pointer % 157.
+      var trail = pointer % 157;
+
+      // 8. Let offset be 0x40 if trail is less than 0x3F and 0x62
+      // otherwise.
+      var offset = trail < 0x3F ? 0x40 : 0x62;
+
+      // Return two bytes whose values are lead and trail + offset.
+      return [lead, trail + offset];
+    };
+  }
+
+  /** @param {{fatal: boolean}} options */
+  encoders['Big5'] = function(options) {
+    return new Big5Encoder(options);
+  };
+  /** @param {{fatal: boolean}} options */
+  decoders['Big5'] = function(options) {
+    return new Big5Decoder(options);
+  };
+
+
+  //
+  // 13. Legacy multi-byte Japanese encodings
+  //
+
+  // 13.1 euc-jp
+
+  // 13.1.1 euc-jp decoder
+  /**
+   * @constructor
+   * @implements {Decoder}
+   * @param {{fatal: boolean}} options
+   */
+  function EUCJPDecoder(options) {
+    var fatal = options.fatal;
+
+    // euc-jp's decoder has an associated euc-jp jis0212 flag
+    // (initially unset) and euc-jp lead (initially 0x00).
+    var /** @type {boolean} */ eucjp_jis0212_flag = false,
+        /** @type {number} */ eucjp_lead = 0x00;
+
+    /**
+     * @param {Stream} stream The stream of bytes being decoded.
+     * @param {number} bite The next byte read from the stream.
+     * @return {?(number|!Array.<number>)} The next code point(s)
+     *     decoded, or null if not enough data exists in the input
+     *     stream to decode a complete code point.
+     */
+    this.handler = function(stream, bite) {
+      // 1. If byte is end-of-stream and euc-jp lead is not 0x00, set
+      // euc-jp lead to 0x00, and return error.
+      if (bite === end_of_stream && eucjp_lead !== 0x00) {
+        eucjp_lead = 0x00;
+        return decoderError(fatal);
+      }
+
+      // 2. If byte is end-of-stream and euc-jp lead is 0x00, return
+      // finished.
+      if (bite === end_of_stream && eucjp_lead === 0x00)
+        return finished;
+
+      // 3. If euc-jp lead is 0x8E and byte is in the range 0xA1 to
+      // 0xDF, inclusive, set euc-jp lead to 0x00 and return a code
+      // point whose value is 0xFF61 − 0xA1 + byte.
+      if (eucjp_lead === 0x8E && inRange(bite, 0xA1, 0xDF)) {
+        eucjp_lead = 0x00;
+        return 0xFF61 - 0xA1 + bite;
+      }
+
+      // 4. If euc-jp lead is 0x8F and byte is in the range 0xA1 to
+      // 0xFE, inclusive, set the euc-jp jis0212 flag, set euc-jp lead
+      // to byte, and return continue.
+      if (eucjp_lead === 0x8F && inRange(bite, 0xA1, 0xFE)) {
+        eucjp_jis0212_flag = true;
+        eucjp_lead = bite;
+        return null;
+      }
+
+      // 5. If euc-jp lead is not 0x00, let lead be euc-jp lead, set
+      // euc-jp lead to 0x00, and run these substeps:
+      if (eucjp_lead !== 0x00) {
+        var lead = eucjp_lead;
+        eucjp_lead = 0x00;
+
+        // 1. Let code point be null.
+        var code_point = null;
+
+        // 2. If lead and byte are both in the range 0xA1 to 0xFE,
+        // inclusive, set code point to the index code point for (lead
+        // − 0xA1) × 94 + byte − 0xA1 in index jis0208 if the euc-jp
+        // jis0212 flag is unset and in index jis0212 otherwise.
+        if (inRange(lead, 0xA1, 0xFE) && inRange(bite, 0xA1, 0xFE)) {
+          code_point = indexCodePointFor(
+            (lead - 0xA1) * 94 + (bite - 0xA1),
+            index(!eucjp_jis0212_flag ? 'jis0208' : 'jis0212'));
+        }
+
+        // 3. Unset the euc-jp jis0212 flag.
+        eucjp_jis0212_flag = false;
+
+        // 4. If byte is not in the range 0xA1 to 0xFE, inclusive,
+        // prepend byte to stream.
+        if (!inRange(bite, 0xA1, 0xFE))
+          stream.prepend(bite);
+
+        // 5. If code point is null, return error.
+        if (code_point === null)
+          return decoderError(fatal);
+
+        // 6. Return a code point whose value is code point.
+        return code_point;
+      }
+
+      // 6. If byte is an ASCII byte, return a code point whose value
+      // is byte.
+      if (isASCIIByte(bite))
+        return bite;
+
+      // 7. If byte is 0x8E, 0x8F, or in the range 0xA1 to 0xFE,
+      // inclusive, set euc-jp lead to byte and return continue.
+      if (bite === 0x8E || bite === 0x8F || inRange(bite, 0xA1, 0xFE)) {
+        eucjp_lead = bite;
+        return null;
+      }
+
+      // 8. Return error.
+      return decoderError(fatal);
+    };
+  }
+
+  // 13.1.2 euc-jp encoder
+  /**
+   * @constructor
+   * @implements {Encoder}
+   * @param {{fatal: boolean}} options
+   */
+  function EUCJPEncoder(options) {
+    var fatal = options.fatal;
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    this.handler = function(stream, code_point) {
+      // 1. If code point is end-of-stream, return finished.
+      if (code_point === end_of_stream)
+        return finished;
+
+      // 2. If code point is an ASCII code point, return a byte whose
+      // value is code point.
+      if (isASCIICodePoint(code_point))
+        return code_point;
+
+      // 3. If code point is U+00A5, return byte 0x5C.
+      if (code_point === 0x00A5)
+        return 0x5C;
+
+      // 4. If code point is U+203E, return byte 0x7E.
+      if (code_point === 0x203E)
+        return 0x7E;
+
+      // 5. If code point is in the range U+FF61 to U+FF9F, inclusive,
+      // return two bytes whose values are 0x8E and code point −
+      // 0xFF61 + 0xA1.
+      if (inRange(code_point, 0xFF61, 0xFF9F))
+        return [0x8E, code_point - 0xFF61 + 0xA1];
+
+      // 6. If code point is U+2212, set it to U+FF0D.
+      if (code_point === 0x2212)
+        code_point = 0xFF0D;
+
+      // 7. Let pointer be the index pointer for code point in index
+      // jis0208.
+      var pointer = indexPointerFor(code_point, index('jis0208'));
+
+      // 8. If pointer is null, return error with code point.
+      if (pointer === null)
+        return encoderError(code_point);
+
+      // 9. Let lead be floor(pointer / 94) + 0xA1.
+      var lead = floor(pointer / 94) + 0xA1;
+
+      // 10. Let trail be pointer % 94 + 0xA1.
+      var trail = pointer % 94 + 0xA1;
+
+      // 11. Return two bytes whose values are lead and trail.
+      return [lead, trail];
+    };
+  }
+
+  /** @param {{fatal: boolean}} options */
+  encoders['EUC-JP'] = function(options) {
+    return new EUCJPEncoder(options);
+  };
+  /** @param {{fatal: boolean}} options */
+  decoders['EUC-JP'] = function(options) {
+    return new EUCJPDecoder(options);
+  };
+
+  // 13.2 iso-2022-jp
+
+  // 13.2.1 iso-2022-jp decoder
+  /**
+   * @constructor
+   * @implements {Decoder}
+   * @param {{fatal: boolean}} options
+   */
+  function ISO2022JPDecoder(options) {
+    var fatal = options.fatal;
+    /** @enum */
+    var states = {
+      ASCII: 0,
+      Roman: 1,
+      Katakana: 2,
+      LeadByte: 3,
+      TrailByte: 4,
+      EscapeStart: 5,
+      Escape: 6
+    };
+    // iso-2022-jp's decoder has an associated iso-2022-jp decoder
+    // state (initially ASCII), iso-2022-jp decoder output state
+    // (initially ASCII), iso-2022-jp lead (initially 0x00), and
+    // iso-2022-jp output flag (initially unset).
+    var /** @type {number} */ iso2022jp_decoder_state = states.ASCII,
+        /** @type {number} */ iso2022jp_decoder_output_state = states.ASCII,
+        /** @type {number} */ iso2022jp_lead = 0x00,
+        /** @type {boolean} */ iso2022jp_output_flag = false;
+    /**
+     * @param {Stream} stream The stream of bytes being decoded.
+     * @param {number} bite The next byte read from the stream.
+     * @return {?(number|!Array.<number>)} The next code point(s)
+     *     decoded, or null if not enough data exists in the input
+     *     stream to decode a complete code point.
+     */
+    this.handler = function(stream, bite) {
+      // switching on iso-2022-jp decoder state:
+      switch (iso2022jp_decoder_state) {
+      default:
+      case states.ASCII:
+        // ASCII
+        // Based on byte:
+
+        // 0x1B
+        if (bite === 0x1B) {
+          // Set iso-2022-jp decoder state to escape start and return
+          // continue.
+          iso2022jp_decoder_state = states.EscapeStart;
+          return null;
+        }
+
+        // 0x00 to 0x7F, excluding 0x0E, 0x0F, and 0x1B
+        if (inRange(bite, 0x00, 0x7F) && bite !== 0x0E
+            && bite !== 0x0F && bite !== 0x1B) {
+          // Unset the iso-2022-jp output flag and return a code point
+          // whose value is byte.
+          iso2022jp_output_flag = false;
+          return bite;
+        }
+
+        // end-of-stream
+        if (bite === end_of_stream) {
+          // Return finished.
+          return finished;
+        }
+
+        // Otherwise
+        // Unset the iso-2022-jp output flag and return error.
+        iso2022jp_output_flag = false;
+        return decoderError(fatal);
+
+      case states.Roman:
+        // Roman
+        // Based on byte:
+
+        // 0x1B
+        if (bite === 0x1B) {
+          // Set iso-2022-jp decoder state to escape start and return
+          // continue.
+          iso2022jp_decoder_state = states.EscapeStart;
+          return null;
+        }
+
+        // 0x5C
+        if (bite === 0x5C) {
+          // Unset the iso-2022-jp output flag and return code point
+          // U+00A5.
+          iso2022jp_output_flag = false;
+          return 0x00A5;
+        }
+
+        // 0x7E
+        if (bite === 0x7E) {
+          // Unset the iso-2022-jp output flag and return code point
+          // U+203E.
+          iso2022jp_output_flag = false;
+          return 0x203E;
+        }
+
+        // 0x00 to 0x7F, excluding 0x0E, 0x0F, 0x1B, 0x5C, and 0x7E
+        if (inRange(bite, 0x00, 0x7F) && bite !== 0x0E && bite !== 0x0F
+            && bite !== 0x1B && bite !== 0x5C && bite !== 0x7E) {
+          // Unset the iso-2022-jp output flag and return a code point
+          // whose value is byte.
+          iso2022jp_output_flag = false;
+          return bite;
+        }
+
+        // end-of-stream
+        if (bite === end_of_stream) {
+          // Return finished.
+          return finished;
+        }
+
+        // Otherwise
+        // Unset the iso-2022-jp output flag and return error.
+        iso2022jp_output_flag = false;
+        return decoderError(fatal);
+
+      case states.Katakana:
+        // Katakana
+        // Based on byte:
+
+        // 0x1B
+        if (bite === 0x1B) {
+          // Set iso-2022-jp decoder state to escape start and return
+          // continue.
+          iso2022jp_decoder_state = states.EscapeStart;
+          return null;
+        }
+
+        // 0x21 to 0x5F
+        if (inRange(bite, 0x21, 0x5F)) {
+          // Unset the iso-2022-jp output flag and return a code point
+          // whose value is 0xFF61 − 0x21 + byte.
+          iso2022jp_output_flag = false;
+          return 0xFF61 - 0x21 + bite;
+        }
+
+        // end-of-stream
+        if (bite === end_of_stream) {
+          // Return finished.
+          return finished;
+        }
+
+        // Otherwise
+        // Unset the iso-2022-jp output flag and return error.
+        iso2022jp_output_flag = false;
+        return decoderError(fatal);
+
+      case states.LeadByte:
+        // Lead byte
+        // Based on byte:
+
+        // 0x1B
+        if (bite === 0x1B) {
+          // Set iso-2022-jp decoder state to escape start and return
+          // continue.
+          iso2022jp_decoder_state = states.EscapeStart;
+          return null;
+        }
+
+        // 0x21 to 0x7E
+        if (inRange(bite, 0x21, 0x7E)) {
+          // Unset the iso-2022-jp output flag, set iso-2022-jp lead
+          // to byte, iso-2022-jp decoder state to trail byte, and
+          // return continue.
+          iso2022jp_output_flag = false;
+          iso2022jp_lead = bite;
+          iso2022jp_decoder_state = states.TrailByte;
+          return null;
+        }
+
+        // end-of-stream
+        if (bite === end_of_stream) {
+          // Return finished.
+          return finished;
+        }
+
+        // Otherwise
+        // Unset the iso-2022-jp output flag and return error.
+        iso2022jp_output_flag = false;
+        return decoderError(fatal);
+
+      case states.TrailByte:
+        // Trail byte
+        // Based on byte:
+
+        // 0x1B
+        if (bite === 0x1B) {
+          // Set iso-2022-jp decoder state to escape start and return
+          // continue.
+          iso2022jp_decoder_state = states.EscapeStart;
+          return decoderError(fatal);
+        }
+
+        // 0x21 to 0x7E
+        if (inRange(bite, 0x21, 0x7E)) {
+          // 1. Set the iso-2022-jp decoder state to lead byte.
+          iso2022jp_decoder_state = states.LeadByte;
+
+          // 2. Let pointer be (iso-2022-jp lead − 0x21) × 94 + byte − 0x21.
+          var pointer = (iso2022jp_lead - 0x21) * 94 + bite - 0x21;
+
+          // 3. Let code point be the index code point for pointer in
+          // index jis0208.
+          var code_point = indexCodePointFor(pointer, index('jis0208'));
+
+          // 4. If code point is null, return error.
+          if (code_point === null)
+            return decoderError(fatal);
+
+          // 5. Return a code point whose value is code point.
+          return code_point;
+        }
+
+        // end-of-stream
+        if (bite === end_of_stream) {
+          // Set the iso-2022-jp decoder state to lead byte, prepend
+          // byte to stream, and return error.
+          iso2022jp_decoder_state = states.LeadByte;
+          stream.prepend(bite);
+          return decoderError(fatal);
+        }
+
+        // Otherwise
+        // Set iso-2022-jp decoder state to lead byte and return
+        // error.
+        iso2022jp_decoder_state = states.LeadByte;
+        return decoderError(fatal);
+
+      case states.EscapeStart:
+        // Escape start
+
+        // 1. If byte is either 0x24 or 0x28, set iso-2022-jp lead to
+        // byte, iso-2022-jp decoder state to escape, and return
+        // continue.
+        if (bite === 0x24 || bite === 0x28) {
+          iso2022jp_lead = bite;
+          iso2022jp_decoder_state = states.Escape;
+          return null;
+        }
+
+        // 2. Prepend byte to stream.
+        stream.prepend(bite);
+
+        // 3. Unset the iso-2022-jp output flag, set iso-2022-jp
+        // decoder state to iso-2022-jp decoder output state, and
+        // return error.
+        iso2022jp_output_flag = false;
+        iso2022jp_decoder_state = iso2022jp_decoder_output_state;
+        return decoderError(fatal);
+
+      case states.Escape:
+        // Escape
+
+        // 1. Let lead be iso-2022-jp lead and set iso-2022-jp lead to
+        // 0x00.
+        var lead = iso2022jp_lead;
+        iso2022jp_lead = 0x00;
+
+        // 2. Let state be null.
+        var state = null;
+
+        // 3. If lead is 0x28 and byte is 0x42, set state to ASCII.
+        if (lead === 0x28 && bite === 0x42)
+          state = states.ASCII;
+
+        // 4. If lead is 0x28 and byte is 0x4A, set state to Roman.
+        if (lead === 0x28 && bite === 0x4A)
+          state = states.Roman;
+
+        // 5. If lead is 0x28 and byte is 0x49, set state to Katakana.
+        if (lead === 0x28 && bite === 0x49)
+          state = states.Katakana;
+
+        // 6. If lead is 0x24 and byte is either 0x40 or 0x42, set
+        // state to lead byte.
+        if (lead === 0x24 && (bite === 0x40 || bite === 0x42))
+          state = states.LeadByte;
+
+        // 7. If state is non-null, run these substeps:
+        if (state !== null) {
+          // 1. Set iso-2022-jp decoder state and iso-2022-jp decoder
+          // output state to states.
+          iso2022jp_decoder_state = iso2022jp_decoder_state = state;
+
+          // 2. Let output flag be the iso-2022-jp output flag.
+          var output_flag = iso2022jp_output_flag;
+
+          // 3. Set the iso-2022-jp output flag.
+          iso2022jp_output_flag = true;
+
+          // 4. Return continue, if output flag is unset, and error
+          // otherwise.
+          return !output_flag ? null : decoderError(fatal);
+        }
+
+        // 8. Prepend lead and byte to stream.
+        stream.prepend([lead, bite]);
+
+        // 9. Unset the iso-2022-jp output flag, set iso-2022-jp
+        // decoder state to iso-2022-jp decoder output state and
+        // return error.
+        iso2022jp_output_flag = false;
+        iso2022jp_decoder_state = iso2022jp_decoder_output_state;
+        return decoderError(fatal);
+      }
+    };
+  }
+
+  // 13.2.2 iso-2022-jp encoder
+  /**
+   * @constructor
+   * @implements {Encoder}
+   * @param {{fatal: boolean}} options
+   */
+  function ISO2022JPEncoder(options) {
+    var fatal = options.fatal;
+    // iso-2022-jp's encoder has an associated iso-2022-jp encoder
+    // state which is one of ASCII, Roman, and jis0208 (initially
+    // ASCII).
+    /** @enum */
+    var states = {
+      ASCII: 0,
+      Roman: 1,
+      jis0208: 2
+    };
+    var /** @type {number} */ iso2022jp_state = states.ASCII;
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    this.handler = function(stream, code_point) {
+      // 1. If code point is end-of-stream and iso-2022-jp encoder
+      // state is not ASCII, prepend code point to stream, set
+      // iso-2022-jp encoder state to ASCII, and return three bytes
+      // 0x1B 0x28 0x42.
+      if (code_point === end_of_stream &&
+          iso2022jp_state !== states.ASCII) {
+        stream.prepend(code_point);
+        iso2022jp_state = states.ASCII;
+        return [0x1B, 0x28, 0x42];
+      }
+
+      // 2. If code point is end-of-stream and iso-2022-jp encoder
+      // state is ASCII, return finished.
+      if (code_point === end_of_stream && iso2022jp_state === states.ASCII)
+        return finished;
+
+      // 3. If ISO-2022-JP encoder state is ASCII or Roman, and code
+      // point is U+000E, U+000F, or U+001B, return error with U+FFFD.
+      if ((iso2022jp_state === states.ASCII ||
+           iso2022jp_state === states.Roman) &&
+          (code_point === 0x000E || code_point === 0x000F ||
+           code_point === 0x001B)) {
+        return encoderError(0xFFFD);
+      }
+
+      // 4. If iso-2022-jp encoder state is ASCII and code point is an
+      // ASCII code point, return a byte whose value is code point.
+      if (iso2022jp_state === states.ASCII &&
+          isASCIICodePoint(code_point))
+        return code_point;
+
+      // 5. If iso-2022-jp encoder state is Roman and code point is an
+      // ASCII code point, excluding U+005C and U+007E, or is U+00A5
+      // or U+203E, run these substeps:
+      if (iso2022jp_state === states.Roman &&
+          ((isASCIICodePoint(code_point) &&
+           code_point !== 0x005C && code_point !== 0x007E) ||
+          (code_point == 0x00A5 || code_point == 0x203E))) {
+
+        // 1. If code point is an ASCII code point, return a byte
+        // whose value is code point.
+        if (isASCIICodePoint(code_point))
+          return code_point;
+
+        // 2. If code point is U+00A5, return byte 0x5C.
+        if (code_point === 0x00A5)
+          return 0x5C;
+
+        // 3. If code point is U+203E, return byte 0x7E.
+        if (code_point === 0x203E)
+          return 0x7E;
+      }
+
+      // 6. If code point is an ASCII code point, and iso-2022-jp
+      // encoder state is not ASCII, prepend code point to stream, set
+      // iso-2022-jp encoder state to ASCII, and return three bytes
+      // 0x1B 0x28 0x42.
+      if (isASCIICodePoint(code_point) &&
+          iso2022jp_state !== states.ASCII) {
+        stream.prepend(code_point);
+        iso2022jp_state = states.ASCII;
+        return [0x1B, 0x28, 0x42];
+      }
+
+      // 7. If code point is either U+00A5 or U+203E, and iso-2022-jp
+      // encoder state is not Roman, prepend code point to stream, set
+      // iso-2022-jp encoder state to Roman, and return three bytes
+      // 0x1B 0x28 0x4A.
+      if ((code_point === 0x00A5 || code_point === 0x203E) &&
+          iso2022jp_state !== states.Roman) {
+        stream.prepend(code_point);
+        iso2022jp_state = states.Roman;
+        return [0x1B, 0x28, 0x4A];
+      }
+
+      // 8. If code point is U+2212, set it to U+FF0D.
+      if (code_point === 0x2212)
+        code_point = 0xFF0D;
+
+      // 9. Let pointer be the index pointer for code point in index
+      // jis0208.
+      var pointer = indexPointerFor(code_point, index('jis0208'));
+
+      // 10. If pointer is null, return error with code point.
+      if (pointer === null)
+        return encoderError(code_point);
+
+      // 11. If iso-2022-jp encoder state is not jis0208, prepend code
+      // point to stream, set iso-2022-jp encoder state to jis0208,
+      // and return three bytes 0x1B 0x24 0x42.
+      if (iso2022jp_state !== states.jis0208) {
+        stream.prepend(code_point);
+        iso2022jp_state = states.jis0208;
+        return [0x1B, 0x24, 0x42];
+      }
+
+      // 12. Let lead be floor(pointer / 94) + 0x21.
+      var lead = floor(pointer / 94) + 0x21;
+
+      // 13. Let trail be pointer % 94 + 0x21.
+      var trail = pointer % 94 + 0x21;
+
+      // 14. Return two bytes whose values are lead and trail.
+      return [lead, trail];
+    };
+  }
+
+  /** @param {{fatal: boolean}} options */
+  encoders['ISO-2022-JP'] = function(options) {
+    return new ISO2022JPEncoder(options);
+  };
+  /** @param {{fatal: boolean}} options */
+  decoders['ISO-2022-JP'] = function(options) {
+    return new ISO2022JPDecoder(options);
+  };
+
+  // 13.3 Shift_JIS
+
+  // 13.3.1 Shift_JIS decoder
+  /**
+   * @constructor
+   * @implements {Decoder}
+   * @param {{fatal: boolean}} options
+   */
+  function ShiftJISDecoder(options) {
+    var fatal = options.fatal;
+    // Shift_JIS's decoder has an associated Shift_JIS lead (initially
+    // 0x00).
+    var /** @type {number} */ Shift_JIS_lead = 0x00;
+    /**
+     * @param {Stream} stream The stream of bytes being decoded.
+     * @param {number} bite The next byte read from the stream.
+     * @return {?(number|!Array.<number>)} The next code point(s)
+     *     decoded, or null if not enough data exists in the input
+     *     stream to decode a complete code point.
+     */
+    this.handler = function(stream, bite) {
+      // 1. If byte is end-of-stream and Shift_JIS lead is not 0x00,
+      // set Shift_JIS lead to 0x00 and return error.
+      if (bite === end_of_stream && Shift_JIS_lead !== 0x00) {
+        Shift_JIS_lead = 0x00;
+        return decoderError(fatal);
+      }
+
+      // 2. If byte is end-of-stream and Shift_JIS lead is 0x00,
+      // return finished.
+      if (bite === end_of_stream && Shift_JIS_lead === 0x00)
+        return finished;
+
+      // 3. If Shift_JIS lead is not 0x00, let lead be Shift_JIS lead,
+      // let pointer be null, set Shift_JIS lead to 0x00, and then run
+      // these substeps:
+      if (Shift_JIS_lead !== 0x00) {
+        var lead = Shift_JIS_lead;
+        var pointer = null;
+        Shift_JIS_lead = 0x00;
+
+        // 1. Let offset be 0x40, if byte is less than 0x7F, and 0x41
+        // otherwise.
+        var offset = (bite < 0x7F) ? 0x40 : 0x41;
+
+        // 2. Let lead offset be 0x81, if lead is less than 0xA0, and
+        // 0xC1 otherwise.
+        var lead_offset = (lead < 0xA0) ? 0x81 : 0xC1;
+
+        // 3. If byte is in the range 0x40 to 0x7E, inclusive, or 0x80
+        // to 0xFC, inclusive, set pointer to (lead − lead offset) ×
+        // 188 + byte − offset.
+        if (inRange(bite, 0x40, 0x7E) || inRange(bite, 0x80, 0xFC))
+          pointer = (lead - lead_offset) * 188 + bite - offset;
+
+        // 4. If pointer is in the range 8836 to 10715, inclusive,
+        // return a code point whose value is 0xE000 − 8836 + pointer.
+        if (inRange(pointer, 8836, 10715))
+          return 0xE000 - 8836 + pointer;
+
+        // 5. Let code point be null, if pointer is null, and the
+        // index code point for pointer in index jis0208 otherwise.
+        var code_point = (pointer === null) ? null :
+              indexCodePointFor(pointer, index('jis0208'));
+
+        // 6. If code point is null and byte is an ASCII byte, prepend
+        // byte to stream.
+        if (code_point === null && isASCIIByte(bite))
+          stream.prepend(bite);
+
+        // 7. If code point is null, return error.
+        if (code_point === null)
+          return decoderError(fatal);
+
+        // 8. Return a code point whose value is code point.
+        return code_point;
+      }
+
+      // 4. If byte is an ASCII byte or 0x80, return a code point
+      // whose value is byte.
+      if (isASCIIByte(bite) || bite === 0x80)
+        return bite;
+
+      // 5. If byte is in the range 0xA1 to 0xDF, inclusive, return a
+      // code point whose value is 0xFF61 − 0xA1 + byte.
+      if (inRange(bite, 0xA1, 0xDF))
+        return 0xFF61 - 0xA1 + bite;
+
+      // 6. If byte is in the range 0x81 to 0x9F, inclusive, or 0xE0
+      // to 0xFC, inclusive, set Shift_JIS lead to byte and return
+      // continue.
+      if (inRange(bite, 0x81, 0x9F) || inRange(bite, 0xE0, 0xFC)) {
+        Shift_JIS_lead = bite;
+        return null;
+      }
+
+      // 7. Return error.
+      return decoderError(fatal);
+    };
+  }
+
+  // 13.3.2 Shift_JIS encoder
+  /**
+   * @constructor
+   * @implements {Encoder}
+   * @param {{fatal: boolean}} options
+   */
+  function ShiftJISEncoder(options) {
+    var fatal = options.fatal;
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    this.handler = function(stream, code_point) {
+      // 1. If code point is end-of-stream, return finished.
+      if (code_point === end_of_stream)
+        return finished;
+
+      // 2. If code point is an ASCII code point or U+0080, return a
+      // byte whose value is code point.
+      if (isASCIICodePoint(code_point) || code_point === 0x0080)
+        return code_point;
+
+      // 3. If code point is U+00A5, return byte 0x5C.
+      if (code_point === 0x00A5)
+        return 0x5C;
+
+      // 4. If code point is U+203E, return byte 0x7E.
+      if (code_point === 0x203E)
+        return 0x7E;
+
+      // 5. If code point is in the range U+FF61 to U+FF9F, inclusive,
+      // return a byte whose value is code point − 0xFF61 + 0xA1.
+      if (inRange(code_point, 0xFF61, 0xFF9F))
+        return code_point - 0xFF61 + 0xA1;
+
+      // 6. If code point is U+2212, set it to U+FF0D.
+      if (code_point === 0x2212)
+        code_point = 0xFF0D;
+
+      // 7. Let pointer be the index Shift_JIS pointer for code point.
+      var pointer = indexShiftJISPointerFor(code_point);
+
+      // 8. If pointer is null, return error with code point.
+      if (pointer === null)
+        return encoderError(code_point);
+
+      // 9. Let lead be floor(pointer / 188).
+      var lead = floor(pointer / 188);
+
+      // 10. Let lead offset be 0x81, if lead is less than 0x1F, and
+      // 0xC1 otherwise.
+      var lead_offset = (lead < 0x1F) ? 0x81 : 0xC1;
+
+      // 11. Let trail be pointer % 188.
+      var trail = pointer % 188;
+
+      // 12. Let offset be 0x40, if trail is less than 0x3F, and 0x41
+      // otherwise.
+      var offset = (trail < 0x3F) ? 0x40 : 0x41;
+
+      // 13. Return two bytes whose values are lead + lead offset and
+      // trail + offset.
+      return [lead + lead_offset, trail + offset];
+    };
+  }
+
+  /** @param {{fatal: boolean}} options */
+  encoders['Shift_JIS'] = function(options) {
+    return new ShiftJISEncoder(options);
+  };
+  /** @param {{fatal: boolean}} options */
+  decoders['Shift_JIS'] = function(options) {
+    return new ShiftJISDecoder(options);
+  };
+
+  //
+  // 14. Legacy multi-byte Korean encodings
+  //
+
+  // 14.1 euc-kr
+
+  // 14.1.1 euc-kr decoder
+  /**
+   * @constructor
+   * @implements {Decoder}
+   * @param {{fatal: boolean}} options
+   */
+  function EUCKRDecoder(options) {
+    var fatal = options.fatal;
+
+    // euc-kr's decoder has an associated euc-kr lead (initially 0x00).
+    var /** @type {number} */ euckr_lead = 0x00;
+    /**
+     * @param {Stream} stream The stream of bytes being decoded.
+     * @param {number} bite The next byte read from the stream.
+     * @return {?(number|!Array.<number>)} The next code point(s)
+     *     decoded, or null if not enough data exists in the input
+     *     stream to decode a complete code point.
+     */
+    this.handler = function(stream, bite) {
+      // 1. If byte is end-of-stream and euc-kr lead is not 0x00, set
+      // euc-kr lead to 0x00 and return error.
+      if (bite === end_of_stream && euckr_lead !== 0) {
+        euckr_lead = 0x00;
+        return decoderError(fatal);
+      }
+
+      // 2. If byte is end-of-stream and euc-kr lead is 0x00, return
+      // finished.
+      if (bite === end_of_stream && euckr_lead === 0)
+        return finished;
+
+      // 3. If euc-kr lead is not 0x00, let lead be euc-kr lead, let
+      // pointer be null, set euc-kr lead to 0x00, and then run these
+      // substeps:
+      if (euckr_lead !== 0x00) {
+        var lead = euckr_lead;
+        var pointer = null;
+        euckr_lead = 0x00;
+
+        // 1. If byte is in the range 0x41 to 0xFE, inclusive, set
+        // pointer to (lead − 0x81) × 190 + (byte − 0x41).
+        if (inRange(bite, 0x41, 0xFE))
+          pointer = (lead - 0x81) * 190 + (bite - 0x41);
+
+        // 2. Let code point be null, if pointer is null, and the
+        // index code point for pointer in index euc-kr otherwise.
+        var code_point = (pointer === null)
+              ? null : indexCodePointFor(pointer, index('euc-kr'));
+
+        // 3. If code point is null and byte is an ASCII byte, prepend
+        // byte to stream.
+        if (pointer === null && isASCIIByte(bite))
+          stream.prepend(bite);
+
+        // 4. If code point is null, return error.
+        if (code_point === null)
+          return decoderError(fatal);
+
+        // 5. Return a code point whose value is code point.
+        return code_point;
+      }
+
+      // 4. If byte is an ASCII byte, return a code point whose value
+      // is byte.
+      if (isASCIIByte(bite))
+        return bite;
+
+      // 5. If byte is in the range 0x81 to 0xFE, inclusive, set
+      // euc-kr lead to byte and return continue.
+      if (inRange(bite, 0x81, 0xFE)) {
+        euckr_lead = bite;
+        return null;
+      }
+
+      // 6. Return error.
+      return decoderError(fatal);
+    };
+  }
+
+  // 14.1.2 euc-kr encoder
+  /**
+   * @constructor
+   * @implements {Encoder}
+   * @param {{fatal: boolean}} options
+   */
+  function EUCKREncoder(options) {
+    var fatal = options.fatal;
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    this.handler = function(stream, code_point) {
+      // 1. If code point is end-of-stream, return finished.
+      if (code_point === end_of_stream)
+        return finished;
+
+      // 2. If code point is an ASCII code point, return a byte whose
+      // value is code point.
+      if (isASCIICodePoint(code_point))
+        return code_point;
+
+      // 3. Let pointer be the index pointer for code point in index
+      // euc-kr.
+      var pointer = indexPointerFor(code_point, index('euc-kr'));
+
+      // 4. If pointer is null, return error with code point.
+      if (pointer === null)
+        return encoderError(code_point);
+
+      // 5. Let lead be floor(pointer / 190) + 0x81.
+      var lead = floor(pointer / 190) + 0x81;
+
+      // 6. Let trail be pointer % 190 + 0x41.
+      var trail = (pointer % 190) + 0x41;
+
+      // 7. Return two bytes whose values are lead and trail.
+      return [lead, trail];
+    };
+  }
+
+  /** @param {{fatal: boolean}} options */
+  encoders['EUC-KR'] = function(options) {
+    return new EUCKREncoder(options);
+  };
+  /** @param {{fatal: boolean}} options */
+  decoders['EUC-KR'] = function(options) {
+    return new EUCKRDecoder(options);
+  };
+
+
+  //
+  // 15. Legacy miscellaneous encodings
+  //
+
+  // 15.1 replacement
+
+  // Not needed - API throws RangeError
+
+  // 15.2 Common infrastructure for utf-16be and utf-16le
+
+  /**
+   * @param {number} code_unit
+   * @param {boolean} utf16be
+   * @return {!Array.<number>} bytes
+   */
+  function convertCodeUnitToBytes(code_unit, utf16be) {
+    // 1. Let byte1 be code unit >> 8.
+    var byte1 = code_unit >> 8;
+
+    // 2. Let byte2 be code unit & 0x00FF.
+    var byte2 = code_unit & 0x00FF;
+
+    // 3. Then return the bytes in order:
+        // utf-16be flag is set: byte1, then byte2.
+    if (utf16be)
+      return [byte1, byte2];
+    // utf-16be flag is unset: byte2, then byte1.
+    return [byte2, byte1];
+  }
+
+  // 15.2.1 shared utf-16 decoder
+  /**
+   * @constructor
+   * @implements {Decoder}
+   * @param {boolean} utf16_be True if big-endian, false if little-endian.
+   * @param {{fatal: boolean}} options
+   */
+  function UTF16Decoder(utf16_be, options) {
+    var fatal = options.fatal;
+    var /** @type {?number} */ utf16_lead_byte = null,
+        /** @type {?number} */ utf16_lead_surrogate = null;
+    /**
+     * @param {Stream} stream The stream of bytes being decoded.
+     * @param {number} bite The next byte read from the stream.
+     * @return {?(number|!Array.<number>)} The next code point(s)
+     *     decoded, or null if not enough data exists in the input
+     *     stream to decode a complete code point.
+     */
+    this.handler = function(stream, bite) {
+      // 1. If byte is end-of-stream and either utf-16 lead byte or
+      // utf-16 lead surrogate is not null, set utf-16 lead byte and
+      // utf-16 lead surrogate to null, and return error.
+      if (bite === end_of_stream && (utf16_lead_byte !== null ||
+                                utf16_lead_surrogate !== null)) {
+        return decoderError(fatal);
+      }
+
+      // 2. If byte is end-of-stream and utf-16 lead byte and utf-16
+      // lead surrogate are null, return finished.
+      if (bite === end_of_stream && utf16_lead_byte === null &&
+          utf16_lead_surrogate === null) {
+        return finished;
+      }
+
+      // 3. If utf-16 lead byte is null, set utf-16 lead byte to byte
+      // and return continue.
+      if (utf16_lead_byte === null) {
+        utf16_lead_byte = bite;
+        return null;
+      }
+
+      // 4. Let code unit be the result of:
+      var code_unit;
+      if (utf16_be) {
+        // utf-16be decoder flag is set
+        //   (utf-16 lead byte << 8) + byte.
+        code_unit = (utf16_lead_byte << 8) + bite;
+      } else {
+        // utf-16be decoder flag is unset
+        //   (byte << 8) + utf-16 lead byte.
+        code_unit = (bite << 8) + utf16_lead_byte;
+      }
+      // Then set utf-16 lead byte to null.
+      utf16_lead_byte = null;
+
+      // 5. If utf-16 lead surrogate is not null, let lead surrogate
+      // be utf-16 lead surrogate, set utf-16 lead surrogate to null,
+      // and then run these substeps:
+      if (utf16_lead_surrogate !== null) {
+        var lead_surrogate = utf16_lead_surrogate;
+        utf16_lead_surrogate = null;
+
+        // 1. If code unit is in the range U+DC00 to U+DFFF,
+        // inclusive, return a code point whose value is 0x10000 +
+        // ((lead surrogate − 0xD800) << 10) + (code unit − 0xDC00).
+        if (inRange(code_unit, 0xDC00, 0xDFFF)) {
+          return 0x10000 + (lead_surrogate - 0xD800) * 0x400 +
+              (code_unit - 0xDC00);
+        }
+
+        // 2. Prepend the sequence resulting of converting code unit
+        // to bytes using utf-16be decoder flag to stream and return
+        // error.
+        stream.prepend(convertCodeUnitToBytes(code_unit, utf16_be));
+        return decoderError(fatal);
+      }
+
+      // 6. If code unit is in the range U+D800 to U+DBFF, inclusive,
+      // set utf-16 lead surrogate to code unit and return continue.
+      if (inRange(code_unit, 0xD800, 0xDBFF)) {
+        utf16_lead_surrogate = code_unit;
+        return null;
+      }
+
+      // 7. If code unit is in the range U+DC00 to U+DFFF, inclusive,
+      // return error.
+      if (inRange(code_unit, 0xDC00, 0xDFFF))
+        return decoderError(fatal);
+
+      // 8. Return code point code unit.
+      return code_unit;
+    };
+  }
+
+  // 15.2.2 shared utf-16 encoder
+  /**
+   * @constructor
+   * @implements {Encoder}
+   * @param {boolean} utf16_be True if big-endian, false if little-endian.
+   * @param {{fatal: boolean}} options
+   */
+  function UTF16Encoder(utf16_be, options) {
+    var fatal = options.fatal;
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    this.handler = function(stream, code_point) {
+      // 1. If code point is end-of-stream, return finished.
+      if (code_point === end_of_stream)
+        return finished;
+
+      // 2. If code point is in the range U+0000 to U+FFFF, inclusive,
+      // return the sequence resulting of converting code point to
+      // bytes using utf-16be encoder flag.
+      if (inRange(code_point, 0x0000, 0xFFFF))
+        return convertCodeUnitToBytes(code_point, utf16_be);
+
+      // 3. Let lead be ((code point − 0x10000) >> 10) + 0xD800,
+      // converted to bytes using utf-16be encoder flag.
+      var lead = convertCodeUnitToBytes(
+        ((code_point - 0x10000) >> 10) + 0xD800, utf16_be);
+
+      // 4. Let trail be ((code point − 0x10000) & 0x3FF) + 0xDC00,
+      // converted to bytes using utf-16be encoder flag.
+      var trail = convertCodeUnitToBytes(
+        ((code_point - 0x10000) & 0x3FF) + 0xDC00, utf16_be);
+
+      // 5. Return a byte sequence of lead followed by trail.
+      return lead.concat(trail);
+    };
+  }
+
+  // 15.3 utf-16be
+  // 15.3.1 utf-16be decoder
+  /** @param {{fatal: boolean}} options */
+  encoders['UTF-16BE'] = function(options) {
+    return new UTF16Encoder(true, options);
+  };
+  // 15.3.2 utf-16be encoder
+  /** @param {{fatal: boolean}} options */
+  decoders['UTF-16BE'] = function(options) {
+    return new UTF16Decoder(true, options);
+  };
+
+  // 15.4 utf-16le
+  // 15.4.1 utf-16le decoder
+  /** @param {{fatal: boolean}} options */
+  encoders['UTF-16LE'] = function(options) {
+    return new UTF16Encoder(false, options);
+  };
+  // 15.4.2 utf-16le encoder
+  /** @param {{fatal: boolean}} options */
+  decoders['UTF-16LE'] = function(options) {
+    return new UTF16Decoder(false, options);
+  };
+
+  // 15.5 x-user-defined
+
+  // 15.5.1 x-user-defined decoder
+  /**
+   * @constructor
+   * @implements {Decoder}
+   * @param {{fatal: boolean}} options
+   */
+  function XUserDefinedDecoder(options) {
+    var fatal = options.fatal;
+    /**
+     * @param {Stream} stream The stream of bytes being decoded.
+     * @param {number} bite The next byte read from the stream.
+     * @return {?(number|!Array.<number>)} The next code point(s)
+     *     decoded, or null if not enough data exists in the input
+     *     stream to decode a complete code point.
+     */
+    this.handler = function(stream, bite) {
+      // 1. If byte is end-of-stream, return finished.
+      if (bite === end_of_stream)
+        return finished;
+
+      // 2. If byte is an ASCII byte, return a code point whose value
+      // is byte.
+      if (isASCIIByte(bite))
+        return bite;
+
+      // 3. Return a code point whose value is 0xF780 + byte − 0x80.
+      return 0xF780 + bite - 0x80;
+    };
+  }
+
+  // 15.5.2 x-user-defined encoder
+  /**
+   * @constructor
+   * @implements {Encoder}
+   * @param {{fatal: boolean}} options
+   */
+  function XUserDefinedEncoder(options) {
+    var fatal = options.fatal;
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    this.handler = function(stream, code_point) {
+      // 1.If code point is end-of-stream, return finished.
+      if (code_point === end_of_stream)
+        return finished;
+
+      // 2. If code point is an ASCII code point, return a byte whose
+      // value is code point.
+      if (isASCIICodePoint(code_point))
+        return code_point;
+
+      // 3. If code point is in the range U+F780 to U+F7FF, inclusive,
+      // return a byte whose value is code point − 0xF780 + 0x80.
+      if (inRange(code_point, 0xF780, 0xF7FF))
+        return code_point - 0xF780 + 0x80;
+
+      // 4. Return error with code point.
+      return encoderError(code_point);
+    };
+  }
+
+  /** @param {{fatal: boolean}} options */
+  encoders['x-user-defined'] = function(options) {
+    return new XUserDefinedEncoder(options);
+  };
+  /** @param {{fatal: boolean}} options */
+  decoders['x-user-defined'] = function(options) {
+    return new XUserDefinedDecoder(options);
+  };
+
+  if (typeof module !== "undefined" && module.exports) {
+    module.exports = {
+      TextEncoder: TextEncoder,
+      TextDecoder: TextDecoder,
+      EncodingIndexes: require("./encoding-indexes.js")["encoding-indexes"]
+    };
+  }
+
+// For strict environments where `this` inside the global scope
+// is `undefined`, take a pure object instead
+}(this || {}));
diff --git a/backend/node_modules/bson/vendor/text-encoding/package.json b/backend/node_modules/bson/vendor/text-encoding/package.json
new file mode 100644
index 0000000..ffc3155
--- /dev/null
+++ b/backend/node_modules/bson/vendor/text-encoding/package.json
@@ -0,0 +1,37 @@
+{
+  "name": "text-encoding",
+  "author": "Joshua Bell <inexorabletash@gmail.com>",
+  "contributors": [
+    "Joshua Bell <inexorabletash@gmail.com>",
+    "Rick Eyre <rick.eyre@outlook.com>",
+    "Eugen Podaru <eugen.podaru@live.com>",
+    "Filip Dupanović <filip.dupanovic@gmail.com>",
+    "Anne van Kesteren <annevk@annevk.nl>",
+    "Author: Francis Avila <francisga@gmail.com>",
+    "Michael J. Ryan <tracker1@gmail.com>",
+    "Pierre Queinnec <pierre@queinnec.org>",
+    "Zack Weinberg <zackw@panix.com>"
+  ],
+  "version": "0.7.0",
+  "description": "Polyfill for the Encoding Living Standard's API.",
+  "main": "index.js",
+  "files": [
+    "index.js",
+    "lib/encoding.js",
+    "lib/encoding-indexes.js"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/inexorabletash/text-encoding.git"
+  },
+  "keywords": [
+    "encoding",
+    "decoding",
+    "living standard"
+  ],
+  "bugs": {
+    "url": "https://github.com/inexorabletash/text-encoding/issues"
+  },
+  "homepage": "https://github.com/inexorabletash/text-encoding",
+  "license": "(Unlicense OR Apache-2.0)"
+}
diff --git a/backend/node_modules/buffer-from/LICENSE b/backend/node_modules/buffer-from/LICENSE
new file mode 100644
index 0000000..e4bf1d6
--- /dev/null
+++ b/backend/node_modules/buffer-from/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2016, 2018 Linus Unnebäck
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/buffer-from/index.js b/backend/node_modules/buffer-from/index.js
new file mode 100644
index 0000000..e1a58b5
--- /dev/null
+++ b/backend/node_modules/buffer-from/index.js
@@ -0,0 +1,72 @@
+/* eslint-disable node/no-deprecated-api */
+
+var toString = Object.prototype.toString
+
+var isModern = (
+  typeof Buffer !== 'undefined' &&
+  typeof Buffer.alloc === 'function' &&
+  typeof Buffer.allocUnsafe === 'function' &&
+  typeof Buffer.from === 'function'
+)
+
+function isArrayBuffer (input) {
+  return toString.call(input).slice(8, -1) === 'ArrayBuffer'
+}
+
+function fromArrayBuffer (obj, byteOffset, length) {
+  byteOffset >>>= 0
+
+  var maxLength = obj.byteLength - byteOffset
+
+  if (maxLength < 0) {
+    throw new RangeError("'offset' is out of bounds")
+  }
+
+  if (length === undefined) {
+    length = maxLength
+  } else {
+    length >>>= 0
+
+    if (length > maxLength) {
+      throw new RangeError("'length' is out of bounds")
+    }
+  }
+
+  return isModern
+    ? Buffer.from(obj.slice(byteOffset, byteOffset + length))
+    : new Buffer(new Uint8Array(obj.slice(byteOffset, byteOffset + length)))
+}
+
+function fromString (string, encoding) {
+  if (typeof encoding !== 'string' || encoding === '') {
+    encoding = 'utf8'
+  }
+
+  if (!Buffer.isEncoding(encoding)) {
+    throw new TypeError('"encoding" must be a valid string encoding')
+  }
+
+  return isModern
+    ? Buffer.from(string, encoding)
+    : new Buffer(string, encoding)
+}
+
+function bufferFrom (value, encodingOrOffset, length) {
+  if (typeof value === 'number') {
+    throw new TypeError('"value" argument must not be a number')
+  }
+
+  if (isArrayBuffer(value)) {
+    return fromArrayBuffer(value, encodingOrOffset, length)
+  }
+
+  if (typeof value === 'string') {
+    return fromString(value, encodingOrOffset)
+  }
+
+  return isModern
+    ? Buffer.from(value)
+    : new Buffer(value)
+}
+
+module.exports = bufferFrom
diff --git a/backend/node_modules/buffer-from/package.json b/backend/node_modules/buffer-from/package.json
new file mode 100644
index 0000000..6ac5327
--- /dev/null
+++ b/backend/node_modules/buffer-from/package.json
@@ -0,0 +1,19 @@
+{
+  "name": "buffer-from",
+  "version": "1.1.2",
+  "license": "MIT",
+  "repository": "LinusU/buffer-from",
+  "files": [
+    "index.js"
+  ],
+  "scripts": {
+    "test": "standard && node test"
+  },
+  "devDependencies": {
+    "standard": "^12.0.1"
+  },
+  "keywords": [
+    "buffer",
+    "buffer from"
+  ]
+}
diff --git a/backend/node_modules/buffer-from/readme.md b/backend/node_modules/buffer-from/readme.md
new file mode 100644
index 0000000..9880a55
--- /dev/null
+++ b/backend/node_modules/buffer-from/readme.md
@@ -0,0 +1,69 @@
+# Buffer From
+
+A [ponyfill](https://ponyfill.com) for `Buffer.from`, uses native implementation if available.
+
+## Installation
+
+```sh
+npm install --save buffer-from
+```
+
+## Usage
+
+```js
+const bufferFrom = require('buffer-from')
+
+console.log(bufferFrom([1, 2, 3, 4]))
+//=> <Buffer 01 02 03 04>
+
+const arr = new Uint8Array([1, 2, 3, 4])
+console.log(bufferFrom(arr.buffer, 1, 2))
+//=> <Buffer 02 03>
+
+console.log(bufferFrom('test', 'utf8'))
+//=> <Buffer 74 65 73 74>
+
+const buf = bufferFrom('test')
+console.log(bufferFrom(buf))
+//=> <Buffer 74 65 73 74>
+```
+
+## API
+
+### bufferFrom(array)
+
+- `array` &lt;Array&gt;
+
+Allocates a new `Buffer` using an `array` of octets.
+
+### bufferFrom(arrayBuffer[, byteOffset[, length]])
+
+- `arrayBuffer` &lt;ArrayBuffer&gt; The `.buffer` property of a TypedArray or ArrayBuffer
+- `byteOffset` &lt;Integer&gt; Where to start copying from `arrayBuffer`. **Default:** `0`
+- `length` &lt;Integer&gt; How many bytes to copy from `arrayBuffer`. **Default:** `arrayBuffer.length - byteOffset`
+
+When passed a reference to the `.buffer` property of a TypedArray instance, the
+newly created `Buffer` will share the same allocated memory as the TypedArray.
+
+The optional `byteOffset` and `length` arguments specify a memory range within
+the `arrayBuffer` that will be shared by the `Buffer`.
+
+### bufferFrom(buffer)
+
+- `buffer` &lt;Buffer&gt; An existing `Buffer` to copy data from
+
+Copies the passed `buffer` data onto a new `Buffer` instance.
+
+### bufferFrom(string[, encoding])
+
+- `string` &lt;String&gt; A string to encode.
+- `encoding` &lt;String&gt; The encoding of `string`. **Default:** `'utf8'`
+
+Creates a new `Buffer` containing the given JavaScript string `string`. If
+provided, the `encoding` parameter identifies the character encoding of
+`string`.
+
+## See also
+
+- [buffer-alloc](https://github.com/LinusU/buffer-alloc) A ponyfill for `Buffer.alloc`
+- [buffer-alloc-unsafe](https://github.com/LinusU/buffer-alloc-unsafe) A ponyfill for `Buffer.allocUnsafe`
diff --git a/backend/node_modules/busboy/.eslintrc.js b/backend/node_modules/busboy/.eslintrc.js
new file mode 100644
index 0000000..be9311d
--- /dev/null
+++ b/backend/node_modules/busboy/.eslintrc.js
@@ -0,0 +1,5 @@
+'use strict';
+
+module.exports = {
+  extends: '@mscdex/eslint-config',
+};
diff --git a/backend/node_modules/busboy/.github/workflows/ci.yml b/backend/node_modules/busboy/.github/workflows/ci.yml
new file mode 100644
index 0000000..799bae0
--- /dev/null
+++ b/backend/node_modules/busboy/.github/workflows/ci.yml
@@ -0,0 +1,24 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches: [ master ]
+
+jobs:
+  tests-linux:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        node-version: [10.16.0, 10.x, 12.x, 14.x, 16.x]
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Install module
+        run: npm install
+      - name: Run tests
+        run: npm test
diff --git a/backend/node_modules/busboy/.github/workflows/lint.yml b/backend/node_modules/busboy/.github/workflows/lint.yml
new file mode 100644
index 0000000..9f9e1f5
--- /dev/null
+++ b/backend/node_modules/busboy/.github/workflows/lint.yml
@@ -0,0 +1,23 @@
+name: lint
+
+on:
+  pull_request:
+  push:
+    branches: [ master ]
+
+env:
+  NODE_VERSION: 16.x
+
+jobs:
+  lint-js:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js ${{ env.NODE_VERSION }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+      - name: Install ESLint + ESLint configs/plugins
+        run: npm install --only=dev
+      - name: Lint files
+        run: npm run lint
diff --git a/backend/node_modules/busboy/LICENSE b/backend/node_modules/busboy/LICENSE
new file mode 100644
index 0000000..290762e
--- /dev/null
+++ b/backend/node_modules/busboy/LICENSE
@@ -0,0 +1,19 @@
+Copyright Brian White. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
\ No newline at end of file
diff --git a/backend/node_modules/busboy/README.md b/backend/node_modules/busboy/README.md
new file mode 100644
index 0000000..654af30
--- /dev/null
+++ b/backend/node_modules/busboy/README.md
@@ -0,0 +1,191 @@
+# Description
+
+A node.js module for parsing incoming HTML form data.
+
+Changes (breaking or otherwise) in v1.0.0 can be found [here](https://github.com/mscdex/busboy/issues/266).
+
+# Requirements
+
+* [node.js](http://nodejs.org/) -- v10.16.0 or newer
+
+
+# Install
+
+    npm install busboy
+
+
+# Examples
+
+* Parsing (multipart) with default options:
+
+```js
+const http = require('http');
+
+const busboy = require('busboy');
+
+http.createServer((req, res) => {
+  if (req.method === 'POST') {
+    console.log('POST request');
+    const bb = busboy({ headers: req.headers });
+    bb.on('file', (name, file, info) => {
+      const { filename, encoding, mimeType } = info;
+      console.log(
+        `File [${name}]: filename: %j, encoding: %j, mimeType: %j`,
+        filename,
+        encoding,
+        mimeType
+      );
+      file.on('data', (data) => {
+        console.log(`File [${name}] got ${data.length} bytes`);
+      }).on('close', () => {
+        console.log(`File [${name}] done`);
+      });
+    });
+    bb.on('field', (name, val, info) => {
+      console.log(`Field [${name}]: value: %j`, val);
+    });
+    bb.on('close', () => {
+      console.log('Done parsing form!');
+      res.writeHead(303, { Connection: 'close', Location: '/' });
+      res.end();
+    });
+    req.pipe(bb);
+  } else if (req.method === 'GET') {
+    res.writeHead(200, { Connection: 'close' });
+    res.end(`
+      <html>
+        <head></head>
+        <body>
+          <form method="POST" enctype="multipart/form-data">
+            <input type="file" name="filefield"><br />
+            <input type="text" name="textfield"><br />
+            <input type="submit">
+          </form>
+        </body>
+      </html>
+    `);
+  }
+}).listen(8000, () => {
+  console.log('Listening for requests');
+});
+
+// Example output:
+//
+// Listening for requests
+//   < ... form submitted ... >
+// POST request
+// File [filefield]: filename: "logo.jpg", encoding: "binary", mime: "image/jpeg"
+// File [filefield] got 11912 bytes
+// Field [textfield]: value: "testing! :-)"
+// File [filefield] done
+// Done parsing form!
+```
+
+* Save all incoming files to disk:
+
+```js
+const { randomFillSync } = require('crypto');
+const fs = require('fs');
+const http = require('http');
+const os = require('os');
+const path = require('path');
+
+const busboy = require('busboy');
+
+const random = (() => {
+  const buf = Buffer.alloc(16);
+  return () => randomFillSync(buf).toString('hex');
+})();
+
+http.createServer((req, res) => {
+  if (req.method === 'POST') {
+    const bb = busboy({ headers: req.headers });
+    bb.on('file', (name, file, info) => {
+      const saveTo = path.join(os.tmpdir(), `busboy-upload-${random()}`);
+      file.pipe(fs.createWriteStream(saveTo));
+    });
+    bb.on('close', () => {
+      res.writeHead(200, { 'Connection': 'close' });
+      res.end(`That's all folks!`);
+    });
+    req.pipe(bb);
+    return;
+  }
+  res.writeHead(404);
+  res.end();
+}).listen(8000, () => {
+  console.log('Listening for requests');
+});
+```
+
+
+# API
+
+## Exports
+
+`busboy` exports a single function:
+
+**( _function_ )**(< _object_ >config) - Creates and returns a new _Writable_ form parser stream.
+
+* Valid `config` properties:
+
+    * **headers** - _object_ - These are the HTTP headers of the incoming request, which are used by individual parsers.
+
+    * **highWaterMark** - _integer_ - highWaterMark to use for the parser stream. **Default:** node's _stream.Writable_ default.
+
+    * **fileHwm** - _integer_ - highWaterMark to use for individual file streams. **Default:** node's _stream.Readable_ default.
+
+    * **defCharset** - _string_ - Default character set to use when one isn't defined. **Default:** `'utf8'`.
+
+    * **defParamCharset** - _string_ - For multipart forms, the default character set to use for values of part header parameters (e.g. filename) that are not extended parameters (that contain an explicit charset). **Default:** `'latin1'`.
+
+    * **preservePath** - _boolean_ - If paths in filenames from file parts in a `'multipart/form-data'` request shall be preserved. **Default:** `false`.
+
+    * **limits** - _object_ - Various limits on incoming data. Valid properties are:
+
+        * **fieldNameSize** - _integer_ - Max field name size (in bytes). **Default:** `100`.
+
+        * **fieldSize** - _integer_ - Max field value size (in bytes). **Default:** `1048576` (1MB).
+
+        * **fields** - _integer_ - Max number of non-file fields. **Default:** `Infinity`.
+
+        * **fileSize** - _integer_ - For multipart forms, the max file size (in bytes). **Default:** `Infinity`.
+
+        * **files** - _integer_ - For multipart forms, the max number of file fields. **Default:** `Infinity`.
+
+        * **parts** - _integer_ - For multipart forms, the max number of parts (fields + files). **Default:** `Infinity`.
+
+        * **headerPairs** - _integer_ - For multipart forms, the max number of header key-value pairs to parse. **Default:** `2000` (same as node's http module).
+
+This function can throw exceptions if there is something wrong with the values in `config`. For example, if the Content-Type in `headers` is missing entirely, is not a supported type, or is missing the boundary for `'multipart/form-data'` requests.
+
+## (Special) Parser stream events
+
+* **file**(< _string_ >name, < _Readable_ >stream, < _object_ >info) - Emitted for each new file found. `name` contains the form field name. `stream` is a _Readable_ stream containing the file's data. No transformations/conversions (e.g. base64 to raw binary) are done on the file's data. `info` contains the following properties:
+
+    * `filename` - _string_ - If supplied, this contains the file's filename. **WARNING:** You should almost _never_ use this value as-is (especially if you are using `preservePath: true` in your `config`) as it could contain malicious input. You are better off generating your own (safe) filenames, or at the very least using a hash of the filename.
+
+    * `encoding` - _string_ - The file's `'Content-Transfer-Encoding'` value.
+
+    * `mimeType` - _string_ - The file's `'Content-Type'` value.
+
+    **Note:** If you listen for this event, you should always consume the `stream` whether you care about its contents or not (you can simply do `stream.resume();` if you want to discard/skip the contents), otherwise the `'finish'`/`'close'` event will never fire on the busboy parser stream.
+    However, if you aren't accepting files, you can either simply not listen for the `'file'` event at all or set `limits.files` to `0`, and any/all files will be automatically skipped (these skipped files will still count towards any configured `limits.files` and `limits.parts` limits though).
+
+    **Note:** If a configured `limits.fileSize` limit was reached for a file, `stream` will both have a boolean property `truncated` set to `true` (best checked at the end of the stream) and emit a `'limit'` event to notify you when this happens.
+
+* **field**(< _string_ >name, < _string_ >value, < _object_ >info) - Emitted for each new non-file field found. `name` contains the form field name. `value` contains the string value of the field. `info` contains the following properties:
+
+    * `nameTruncated` - _boolean_ - Whether `name` was truncated or not (due to a configured `limits.fieldNameSize` limit)
+
+    * `valueTruncated` - _boolean_ - Whether `value` was truncated or not (due to a configured `limits.fieldSize` limit)
+
+    * `encoding` - _string_ - The field's `'Content-Transfer-Encoding'` value.
+
+    * `mimeType` - _string_ - The field's `'Content-Type'` value.
+
+* **partsLimit**() - Emitted when the configured `limits.parts` limit has been reached. No more `'file'` or `'field'` events will be emitted.
+
+* **filesLimit**() - Emitted when the configured `limits.files` limit has been reached. No more `'file'` events will be emitted.
+
+* **fieldsLimit**() - Emitted when the configured `limits.fields` limit has been reached. No more `'field'` events will be emitted.
diff --git a/backend/node_modules/busboy/bench/bench-multipart-fields-100mb-big.js b/backend/node_modules/busboy/bench/bench-multipart-fields-100mb-big.js
new file mode 100644
index 0000000..ef15729
--- /dev/null
+++ b/backend/node_modules/busboy/bench/bench-multipart-fields-100mb-big.js
@@ -0,0 +1,149 @@
+'use strict';
+
+function createMultipartBuffers(boundary, sizes) {
+  const bufs = [];
+  for (let i = 0; i < sizes.length; ++i) {
+    const mb = sizes[i] * 1024 * 1024;
+    bufs.push(Buffer.from([
+      `--${boundary}`,
+      `content-disposition: form-data; name="field${i + 1}"`,
+      '',
+      '0'.repeat(mb),
+      '',
+    ].join('\r\n')));
+  }
+  bufs.push(Buffer.from([
+    `--${boundary}--`,
+    '',
+  ].join('\r\n')));
+  return bufs;
+}
+
+const boundary = '-----------------------------168072824752491622650073';
+const buffers = createMultipartBuffers(boundary, [
+  10,
+  10,
+  10,
+  20,
+  50,
+]);
+const calls = {
+  partBegin: 0,
+  headerField: 0,
+  headerValue: 0,
+  headerEnd: 0,
+  headersEnd: 0,
+  partData: 0,
+  partEnd: 0,
+  end: 0,
+};
+
+const moduleName = process.argv[2];
+switch (moduleName) {
+  case 'busboy': {
+    const busboy = require('busboy');
+
+    const parser = busboy({
+      limits: {
+        fieldSizeLimit: Infinity,
+      },
+      headers: {
+        'content-type': `multipart/form-data; boundary=${boundary}`,
+      },
+    });
+    parser.on('field', (name, val, info) => {
+      ++calls.partBegin;
+      ++calls.partData;
+      ++calls.partEnd;
+    }).on('close', () => {
+      ++calls.end;
+      console.timeEnd(moduleName);
+    });
+
+    console.time(moduleName);
+    for (const buf of buffers)
+      parser.write(buf);
+    break;
+  }
+
+  case 'formidable': {
+    const { MultipartParser } = require('formidable');
+
+    const parser = new MultipartParser();
+    parser.initWithBoundary(boundary);
+    parser.on('data', ({ name }) => {
+      ++calls[name];
+      if (name === 'end')
+        console.timeEnd(moduleName);
+    });
+
+    console.time(moduleName);
+    for (const buf of buffers)
+      parser.write(buf);
+
+    break;
+  }
+
+  case 'multiparty': {
+    const { Readable } = require('stream');
+
+    const { Form } = require('multiparty');
+
+    const form = new Form({
+      maxFieldsSize: Infinity,
+      maxFields: Infinity,
+      maxFilesSize: Infinity,
+      autoFields: false,
+      autoFiles: false,
+    });
+
+    const req = new Readable({ read: () => {} });
+    req.headers = {
+      'content-type': `multipart/form-data; boundary=${boundary}`,
+    };
+
+    function hijack(name, fn) {
+      const oldFn = form[name];
+      form[name] = function() {
+        fn();
+        return oldFn.apply(this, arguments);
+      };
+    }
+
+    hijack('onParseHeaderField', () => {
+      ++calls.headerField;
+    });
+    hijack('onParseHeaderValue', () => {
+      ++calls.headerValue;
+    });
+    hijack('onParsePartBegin', () => {
+      ++calls.partBegin;
+    });
+    hijack('onParsePartData', () => {
+      ++calls.partData;
+    });
+    hijack('onParsePartEnd', () => {
+      ++calls.partEnd;
+    });
+
+    form.on('close', () => {
+      ++calls.end;
+      console.timeEnd(moduleName);
+    }).on('part', (p) => p.resume());
+
+    console.time(moduleName);
+    form.parse(req);
+    for (const buf of buffers)
+      req.push(buf);
+    req.push(null);
+
+    break;
+  }
+
+  default:
+    if (moduleName === undefined)
+      console.error('Missing parser module name');
+    else
+      console.error(`Invalid parser module name: ${moduleName}`);
+    process.exit(1);
+}
diff --git a/backend/node_modules/busboy/bench/bench-multipart-fields-100mb-small.js b/backend/node_modules/busboy/bench/bench-multipart-fields-100mb-small.js
new file mode 100644
index 0000000..f32d421
--- /dev/null
+++ b/backend/node_modules/busboy/bench/bench-multipart-fields-100mb-small.js
@@ -0,0 +1,143 @@
+'use strict';
+
+function createMultipartBuffers(boundary, sizes) {
+  const bufs = [];
+  for (let i = 0; i < sizes.length; ++i) {
+    const mb = sizes[i] * 1024 * 1024;
+    bufs.push(Buffer.from([
+      `--${boundary}`,
+      `content-disposition: form-data; name="field${i + 1}"`,
+      '',
+      '0'.repeat(mb),
+      '',
+    ].join('\r\n')));
+  }
+  bufs.push(Buffer.from([
+    `--${boundary}--`,
+    '',
+  ].join('\r\n')));
+  return bufs;
+}
+
+const boundary = '-----------------------------168072824752491622650073';
+const buffers = createMultipartBuffers(boundary, (new Array(100)).fill(1));
+const calls = {
+  partBegin: 0,
+  headerField: 0,
+  headerValue: 0,
+  headerEnd: 0,
+  headersEnd: 0,
+  partData: 0,
+  partEnd: 0,
+  end: 0,
+};
+
+const moduleName = process.argv[2];
+switch (moduleName) {
+  case 'busboy': {
+    const busboy = require('busboy');
+
+    const parser = busboy({
+      limits: {
+        fieldSizeLimit: Infinity,
+      },
+      headers: {
+        'content-type': `multipart/form-data; boundary=${boundary}`,
+      },
+    });
+    parser.on('field', (name, val, info) => {
+      ++calls.partBegin;
+      ++calls.partData;
+      ++calls.partEnd;
+    }).on('close', () => {
+      ++calls.end;
+      console.timeEnd(moduleName);
+    });
+
+    console.time(moduleName);
+    for (const buf of buffers)
+      parser.write(buf);
+    break;
+  }
+
+  case 'formidable': {
+    const { MultipartParser } = require('formidable');
+
+    const parser = new MultipartParser();
+    parser.initWithBoundary(boundary);
+    parser.on('data', ({ name }) => {
+      ++calls[name];
+      if (name === 'end')
+        console.timeEnd(moduleName);
+    });
+
+    console.time(moduleName);
+    for (const buf of buffers)
+      parser.write(buf);
+
+    break;
+  }
+
+  case 'multiparty': {
+    const { Readable } = require('stream');
+
+    const { Form } = require('multiparty');
+
+    const form = new Form({
+      maxFieldsSize: Infinity,
+      maxFields: Infinity,
+      maxFilesSize: Infinity,
+      autoFields: false,
+      autoFiles: false,
+    });
+
+    const req = new Readable({ read: () => {} });
+    req.headers = {
+      'content-type': `multipart/form-data; boundary=${boundary}`,
+    };
+
+    function hijack(name, fn) {
+      const oldFn = form[name];
+      form[name] = function() {
+        fn();
+        return oldFn.apply(this, arguments);
+      };
+    }
+
+    hijack('onParseHeaderField', () => {
+      ++calls.headerField;
+    });
+    hijack('onParseHeaderValue', () => {
+      ++calls.headerValue;
+    });
+    hijack('onParsePartBegin', () => {
+      ++calls.partBegin;
+    });
+    hijack('onParsePartData', () => {
+      ++calls.partData;
+    });
+    hijack('onParsePartEnd', () => {
+      ++calls.partEnd;
+    });
+
+    form.on('close', () => {
+      ++calls.end;
+      console.timeEnd(moduleName);
+    }).on('part', (p) => p.resume());
+
+    console.time(moduleName);
+    form.parse(req);
+    for (const buf of buffers)
+      req.push(buf);
+    req.push(null);
+
+    break;
+  }
+
+  default:
+    if (moduleName === undefined)
+      console.error('Missing parser module name');
+    else
+      console.error(`Invalid parser module name: ${moduleName}`);
+    process.exit(1);
+}
diff --git a/backend/node_modules/busboy/bench/bench-multipart-files-100mb-big.js b/backend/node_modules/busboy/bench/bench-multipart-files-100mb-big.js
new file mode 100644
index 0000000..b46bdee
--- /dev/null
+++ b/backend/node_modules/busboy/bench/bench-multipart-files-100mb-big.js
@@ -0,0 +1,154 @@
+'use strict';
+
+function createMultipartBuffers(boundary, sizes) {
+  const bufs = [];
+  for (let i = 0; i < sizes.length; ++i) {
+    const mb = sizes[i] * 1024 * 1024;
+    bufs.push(Buffer.from([
+      `--${boundary}`,
+      `content-disposition: form-data; name="file${i + 1}"; `
+        + `filename="random${i + 1}.bin"`,
+      'content-type: application/octet-stream',
+      '',
+      '0'.repeat(mb),
+      '',
+    ].join('\r\n')));
+  }
+  bufs.push(Buffer.from([
+    `--${boundary}--`,
+    '',
+  ].join('\r\n')));
+  return bufs;
+}
+
+const boundary = '-----------------------------168072824752491622650073';
+const buffers = createMultipartBuffers(boundary, [
+  10,
+  10,
+  10,
+  20,
+  50,
+]);
+const calls = {
+  partBegin: 0,
+  headerField: 0,
+  headerValue: 0,
+  headerEnd: 0,
+  headersEnd: 0,
+  partData: 0,
+  partEnd: 0,
+  end: 0,
+};
+
+const moduleName = process.argv[2];
+switch (moduleName) {
+  case 'busboy': {
+    const busboy = require('busboy');
+
+    const parser = busboy({
+      limits: {
+        fieldSizeLimit: Infinity,
+      },
+      headers: {
+        'content-type': `multipart/form-data; boundary=${boundary}`,
+      },
+    });
+    parser.on('file', (name, stream, info) => {
+      ++calls.partBegin;
+      stream.on('data', (chunk) => {
+        ++calls.partData;
+      }).on('end', () => {
+        ++calls.partEnd;
+      });
+    }).on('close', () => {
+      ++calls.end;
+      console.timeEnd(moduleName);
+    });
+
+    console.time(moduleName);
+    for (const buf of buffers)
+      parser.write(buf);
+    break;
+  }
+
+  case 'formidable': {
+    const { MultipartParser } = require('formidable');
+
+    const parser = new MultipartParser();
+    parser.initWithBoundary(boundary);
+    parser.on('data', ({ name }) => {
+      ++calls[name];
+      if (name === 'end')
+        console.timeEnd(moduleName);
+    });
+
+    console.time(moduleName);
+    for (const buf of buffers)
+      parser.write(buf);
+
+    break;
+  }
+
+  case 'multiparty': {
+    const { Readable } = require('stream');
+
+    const { Form } = require('multiparty');
+
+    const form = new Form({
+      maxFieldsSize: Infinity,
+      maxFields: Infinity,
+      maxFilesSize: Infinity,
+      autoFields: false,
+      autoFiles: false,
+    });
+
+    const req = new Readable({ read: () => {} });
+    req.headers = {
+      'content-type': `multipart/form-data; boundary=${boundary}`,
+    };
+
+    function hijack(name, fn) {
+      const oldFn = form[name];
+      form[name] = function() {
+        fn();
+        return oldFn.apply(this, arguments);
+      };
+    }
+
+    hijack('onParseHeaderField', () => {
+      ++calls.headerField;
+    });
+    hijack('onParseHeaderValue', () => {
+      ++calls.headerValue;
+    });
+    hijack('onParsePartBegin', () => {
+      ++calls.partBegin;
+    });
+    hijack('onParsePartData', () => {
+      ++calls.partData;
+    });
+    hijack('onParsePartEnd', () => {
+      ++calls.partEnd;
+    });
+
+    form.on('close', () => {
+      ++calls.end;
+      console.timeEnd(moduleName);
+    }).on('part', (p) => p.resume());
+
+    console.time(moduleName);
+    form.parse(req);
+    for (const buf of buffers)
+      req.push(buf);
+    req.push(null);
+
+    break;
+  }
+
+  default:
+    if (moduleName === undefined)
+      console.error('Missing parser module name');
+    else
+      console.error(`Invalid parser module name: ${moduleName}`);
+    process.exit(1);
+}
diff --git a/backend/node_modules/busboy/bench/bench-multipart-files-100mb-small.js b/backend/node_modules/busboy/bench/bench-multipart-files-100mb-small.js
new file mode 100644
index 0000000..46b5dff
--- /dev/null
+++ b/backend/node_modules/busboy/bench/bench-multipart-files-100mb-small.js
@@ -0,0 +1,148 @@
+'use strict';
+
+function createMultipartBuffers(boundary, sizes) {
+  const bufs = [];
+  for (let i = 0; i < sizes.length; ++i) {
+    const mb = sizes[i] * 1024 * 1024;
+    bufs.push(Buffer.from([
+      `--${boundary}`,
+      `content-disposition: form-data; name="file${i + 1}"; `
+        + `filename="random${i + 1}.bin"`,
+      'content-type: application/octet-stream',
+      '',
+      '0'.repeat(mb),
+      '',
+    ].join('\r\n')));
+  }
+  bufs.push(Buffer.from([
+    `--${boundary}--`,
+    '',
+  ].join('\r\n')));
+  return bufs;
+}
+
+const boundary = '-----------------------------168072824752491622650073';
+const buffers = createMultipartBuffers(boundary, (new Array(100)).fill(1));
+const calls = {
+  partBegin: 0,
+  headerField: 0,
+  headerValue: 0,
+  headerEnd: 0,
+  headersEnd: 0,
+  partData: 0,
+  partEnd: 0,
+  end: 0,
+};
+
+const moduleName = process.argv[2];
+switch (moduleName) {
+  case 'busboy': {
+    const busboy = require('busboy');
+
+    const parser = busboy({
+      limits: {
+        fieldSizeLimit: Infinity,
+      },
+      headers: {
+        'content-type': `multipart/form-data; boundary=${boundary}`,
+      },
+    });
+    parser.on('file', (name, stream, info) => {
+      ++calls.partBegin;
+      stream.on('data', (chunk) => {
+        ++calls.partData;
+      }).on('end', () => {
+        ++calls.partEnd;
+      });
+    }).on('close', () => {
+      ++calls.end;
+      console.timeEnd(moduleName);
+    });
+
+    console.time(moduleName);
+    for (const buf of buffers)
+      parser.write(buf);
+    break;
+  }
+
+  case 'formidable': {
+    const { MultipartParser } = require('formidable');
+
+    const parser = new MultipartParser();
+    parser.initWithBoundary(boundary);
+    parser.on('data', ({ name }) => {
+      ++calls[name];
+      if (name === 'end')
+        console.timeEnd(moduleName);
+    });
+
+    console.time(moduleName);
+    for (const buf of buffers)
+      parser.write(buf);
+
+    break;
+  }
+
+  case 'multiparty': {
+    const { Readable } = require('stream');
+
+    const { Form } = require('multiparty');
+
+    const form = new Form({
+      maxFieldsSize: Infinity,
+      maxFields: Infinity,
+      maxFilesSize: Infinity,
+      autoFields: false,
+      autoFiles: false,
+    });
+
+    const req = new Readable({ read: () => {} });
+    req.headers = {
+      'content-type': `multipart/form-data; boundary=${boundary}`,
+    };
+
+    function hijack(name, fn) {
+      const oldFn = form[name];
+      form[name] = function() {
+        fn();
+        return oldFn.apply(this, arguments);
+      };
+    }
+
+    hijack('onParseHeaderField', () => {
+      ++calls.headerField;
+    });
+    hijack('onParseHeaderValue', () => {
+      ++calls.headerValue;
+    });
+    hijack('onParsePartBegin', () => {
+      ++calls.partBegin;
+    });
+    hijack('onParsePartData', () => {
+      ++calls.partData;
+    });
+    hijack('onParsePartEnd', () => {
+      ++calls.partEnd;
+    });
+
+    form.on('close', () => {
+      ++calls.end;
+      console.timeEnd(moduleName);
+    }).on('part', (p) => p.resume());
+
+    console.time(moduleName);
+    form.parse(req);
+    for (const buf of buffers)
+      req.push(buf);
+    req.push(null);
+
+    break;
+  }
+
+  default:
+    if (moduleName === undefined)
+      console.error('Missing parser module name');
+    else
+      console.error(`Invalid parser module name: ${moduleName}`);
+    process.exit(1);
+}
diff --git a/backend/node_modules/busboy/bench/bench-urlencoded-fields-100pairs-small.js b/backend/node_modules/busboy/bench/bench-urlencoded-fields-100pairs-small.js
new file mode 100644
index 0000000..5c337df
--- /dev/null
+++ b/backend/node_modules/busboy/bench/bench-urlencoded-fields-100pairs-small.js
@@ -0,0 +1,101 @@
+'use strict';
+
+const buffers = [
+  Buffer.from(
+    (new Array(100)).fill('').map((_, i) => `key${i}=value${i}`).join('&')
+  ),
+];
+const calls = {
+  field: 0,
+  end: 0,
+};
+
+let n = 3e3;
+
+const moduleName = process.argv[2];
+switch (moduleName) {
+  case 'busboy': {
+    const busboy = require('busboy');
+
+    console.time(moduleName);
+    (function next() {
+      const parser = busboy({
+        limits: {
+          fieldSizeLimit: Infinity,
+        },
+        headers: {
+          'content-type': 'application/x-www-form-urlencoded; charset=utf-8',
+        },
+      });
+      parser.on('field', (name, val, info) => {
+        ++calls.field;
+      }).on('close', () => {
+        ++calls.end;
+        if (--n === 0)
+          console.timeEnd(moduleName);
+        else
+          process.nextTick(next);
+      });
+
+      for (const buf of buffers)
+        parser.write(buf);
+      parser.end();
+    })();
+    break;
+  }
+
+  case 'formidable': {
+    const QuerystringParser =
+      require('formidable/src/parsers/Querystring.js');
+
+    console.time(moduleName);
+    (function next() {
+      const parser = new QuerystringParser();
+      parser.on('data', (obj) => {
+        ++calls.field;
+      }).on('end', () => {
+        ++calls.end;
+        if (--n === 0)
+          console.timeEnd(moduleName);
+        else
+          process.nextTick(next);
+      });
+
+      for (const buf of buffers)
+        parser.write(buf);
+      parser.end();
+    })();
+    break;
+  }
+
+  case 'formidable-streaming': {
+    const QuerystringParser =
+      require('formidable/src/parsers/StreamingQuerystring.js');
+
+    console.time(moduleName);
+    (function next() {
+      const parser = new QuerystringParser();
+      parser.on('data', (obj) => {
+        ++calls.field;
+      }).on('end', () => {
+        ++calls.end;
+        if (--n === 0)
+          console.timeEnd(moduleName);
+        else
+          process.nextTick(next);
+      });
+
+      for (const buf of buffers)
+        parser.write(buf);
+      parser.end();
+    })();
+    break;
+  }
+
+  default:
+    if (moduleName === undefined)
+      console.error('Missing parser module name');
+    else
+      console.error(`Invalid parser module name: ${moduleName}`);
+    process.exit(1);
+}
diff --git a/backend/node_modules/busboy/bench/bench-urlencoded-fields-900pairs-small-alt.js b/backend/node_modules/busboy/bench/bench-urlencoded-fields-900pairs-small-alt.js
new file mode 100644
index 0000000..1f5645c
--- /dev/null
+++ b/backend/node_modules/busboy/bench/bench-urlencoded-fields-900pairs-small-alt.js
@@ -0,0 +1,84 @@
+'use strict';
+
+const buffers = [
+  Buffer.from(
+    (new Array(900)).fill('').map((_, i) => `key${i}=value${i}`).join('&')
+  ),
+];
+const calls = {
+  field: 0,
+  end: 0,
+};
+
+const moduleName = process.argv[2];
+switch (moduleName) {
+  case 'busboy': {
+    const busboy = require('busboy');
+
+    console.time(moduleName);
+    const parser = busboy({
+      limits: {
+        fieldSizeLimit: Infinity,
+      },
+      headers: {
+        'content-type': 'application/x-www-form-urlencoded; charset=utf-8',
+      },
+    });
+    parser.on('field', (name, val, info) => {
+      ++calls.field;
+    }).on('close', () => {
+      ++calls.end;
+      console.timeEnd(moduleName);
+    });
+
+    for (const buf of buffers)
+      parser.write(buf);
+    parser.end();
+    break;
+  }
+
+  case 'formidable': {
+    const QuerystringParser =
+      require('formidable/src/parsers/Querystring.js');
+
+    console.time(moduleName);
+    const parser = new QuerystringParser();
+    parser.on('data', (obj) => {
+      ++calls.field;
+    }).on('end', () => {
+      ++calls.end;
+      console.timeEnd(moduleName);
+    });
+
+    for (const buf of buffers)
+      parser.write(buf);
+    parser.end();
+    break;
+  }
+
+  case 'formidable-streaming': {
+    const QuerystringParser =
+      require('formidable/src/parsers/StreamingQuerystring.js');
+
+    console.time(moduleName);
+    const parser = new QuerystringParser();
+    parser.on('data', (obj) => {
+      ++calls.field;
+    }).on('end', () => {
+      ++calls.end;
+      console.timeEnd(moduleName);
+    });
+
+    for (const buf of buffers)
+      parser.write(buf);
+    parser.end();
+    break;
+  }
+
+  default:
+    if (moduleName === undefined)
+      console.error('Missing parser module name');
+    else
+      console.error(`Invalid parser module name: ${moduleName}`);
+    process.exit(1);
+}
diff --git a/backend/node_modules/busboy/lib/index.js b/backend/node_modules/busboy/lib/index.js
new file mode 100644
index 0000000..873272d
--- /dev/null
+++ b/backend/node_modules/busboy/lib/index.js
@@ -0,0 +1,57 @@
+'use strict';
+
+const { parseContentType } = require('./utils.js');
+
+function getInstance(cfg) {
+  const headers = cfg.headers;
+  const conType = parseContentType(headers['content-type']);
+  if (!conType)
+    throw new Error('Malformed content type');
+
+  for (const type of TYPES) {
+    const matched = type.detect(conType);
+    if (!matched)
+      continue;
+
+    const instanceCfg = {
+      limits: cfg.limits,
+      headers,
+      conType,
+      highWaterMark: undefined,
+      fileHwm: undefined,
+      defCharset: undefined,
+      defParamCharset: undefined,
+      preservePath: false,
+    };
+    if (cfg.highWaterMark)
+      instanceCfg.highWaterMark = cfg.highWaterMark;
+    if (cfg.fileHwm)
+      instanceCfg.fileHwm = cfg.fileHwm;
+    instanceCfg.defCharset = cfg.defCharset;
+    instanceCfg.defParamCharset = cfg.defParamCharset;
+    instanceCfg.preservePath = cfg.preservePath;
+    return new type(instanceCfg);
+  }
+
+  throw new Error(`Unsupported content type: ${headers['content-type']}`);
+}
+
+// Note: types are explicitly listed here for easier bundling
+// See: https://github.com/mscdex/busboy/issues/121
+const TYPES = [
+  require('./types/multipart'),
+  require('./types/urlencoded'),
+].filter(function(typemod) { return typeof typemod.detect === 'function'; });
+
+module.exports = (cfg) => {
+  if (typeof cfg !== 'object' || cfg === null)
+    cfg = {};
+
+  if (typeof cfg.headers !== 'object'
+      || cfg.headers === null
+      || typeof cfg.headers['content-type'] !== 'string') {
+    throw new Error('Missing Content-Type');
+  }
+
+  return getInstance(cfg);
+};
diff --git a/backend/node_modules/busboy/lib/types/multipart.js b/backend/node_modules/busboy/lib/types/multipart.js
new file mode 100644
index 0000000..cc0d7bb
--- /dev/null
+++ b/backend/node_modules/busboy/lib/types/multipart.js
@@ -0,0 +1,653 @@
+'use strict';
+
+const { Readable, Writable } = require('stream');
+
+const StreamSearch = require('streamsearch');
+
+const {
+  basename,
+  convertToUTF8,
+  getDecoder,
+  parseContentType,
+  parseDisposition,
+} = require('../utils.js');
+
+const BUF_CRLF = Buffer.from('\r\n');
+const BUF_CR = Buffer.from('\r');
+const BUF_DASH = Buffer.from('-');
+
+function noop() {}
+
+const MAX_HEADER_PAIRS = 2000; // From node
+const MAX_HEADER_SIZE = 16 * 1024; // From node (its default value)
+
+const HPARSER_NAME = 0;
+const HPARSER_PRE_OWS = 1;
+const HPARSER_VALUE = 2;
+class HeaderParser {
+  constructor(cb) {
+    this.header = Object.create(null);
+    this.pairCount = 0;
+    this.byteCount = 0;
+    this.state = HPARSER_NAME;
+    this.name = '';
+    this.value = '';
+    this.crlf = 0;
+    this.cb = cb;
+  }
+
+  reset() {
+    this.header = Object.create(null);
+    this.pairCount = 0;
+    this.byteCount = 0;
+    this.state = HPARSER_NAME;
+    this.name = '';
+    this.value = '';
+    this.crlf = 0;
+  }
+
+  push(chunk, pos, end) {
+    let start = pos;
+    while (pos < end) {
+      switch (this.state) {
+        case HPARSER_NAME: {
+          let done = false;
+          for (; pos < end; ++pos) {
+            if (this.byteCount === MAX_HEADER_SIZE)
+              return -1;
+            ++this.byteCount;
+            const code = chunk[pos];
+            if (TOKEN[code] !== 1) {
+              if (code !== 58/* ':' */)
+                return -1;
+              this.name += chunk.latin1Slice(start, pos);
+              if (this.name.length === 0)
+                return -1;
+              ++pos;
+              done = true;
+              this.state = HPARSER_PRE_OWS;
+              break;
+            }
+          }
+          if (!done) {
+            this.name += chunk.latin1Slice(start, pos);
+            break;
+          }
+          // FALLTHROUGH
+        }
+        case HPARSER_PRE_OWS: {
+          // Skip optional whitespace
+          let done = false;
+          for (; pos < end; ++pos) {
+            if (this.byteCount === MAX_HEADER_SIZE)
+              return -1;
+            ++this.byteCount;
+            const code = chunk[pos];
+            if (code !== 32/* ' ' */ && code !== 9/* '\t' */) {
+              start = pos;
+              done = true;
+              this.state = HPARSER_VALUE;
+              break;
+            }
+          }
+          if (!done)
+            break;
+          // FALLTHROUGH
+        }
+        case HPARSER_VALUE:
+          switch (this.crlf) {
+            case 0: // Nothing yet
+              for (; pos < end; ++pos) {
+                if (this.byteCount === MAX_HEADER_SIZE)
+                  return -1;
+                ++this.byteCount;
+                const code = chunk[pos];
+                if (FIELD_VCHAR[code] !== 1) {
+                  if (code !== 13/* '\r' */)
+                    return -1;
+                  ++this.crlf;
+                  break;
+                }
+              }
+              this.value += chunk.latin1Slice(start, pos++);
+              break;
+            case 1: // Received CR
+              if (this.byteCount === MAX_HEADER_SIZE)
+                return -1;
+              ++this.byteCount;
+              if (chunk[pos++] !== 10/* '\n' */)
+                return -1;
+              ++this.crlf;
+              break;
+            case 2: { // Received CR LF
+              if (this.byteCount === MAX_HEADER_SIZE)
+                return -1;
+              ++this.byteCount;
+              const code = chunk[pos];
+              if (code === 32/* ' ' */ || code === 9/* '\t' */) {
+                // Folded value
+                start = pos;
+                this.crlf = 0;
+              } else {
+                if (++this.pairCount < MAX_HEADER_PAIRS) {
+                  this.name = this.name.toLowerCase();
+                  if (this.header[this.name] === undefined)
+                    this.header[this.name] = [this.value];
+                  else
+                    this.header[this.name].push(this.value);
+                }
+                if (code === 13/* '\r' */) {
+                  ++this.crlf;
+                  ++pos;
+                } else {
+                  // Assume start of next header field name
+                  start = pos;
+                  this.crlf = 0;
+                  this.state = HPARSER_NAME;
+                  this.name = '';
+                  this.value = '';
+                }
+              }
+              break;
+            }
+            case 3: { // Received CR LF CR
+              if (this.byteCount === MAX_HEADER_SIZE)
+                return -1;
+              ++this.byteCount;
+              if (chunk[pos++] !== 10/* '\n' */)
+                return -1;
+              // End of header
+              const header = this.header;
+              this.reset();
+              this.cb(header);
+              return pos;
+            }
+          }
+          break;
+      }
+    }
+
+    return pos;
+  }
+}
+
+class FileStream extends Readable {
+  constructor(opts, owner) {
+    super(opts);
+    this.truncated = false;
+    this._readcb = null;
+    this.once('end', () => {
+      // We need to make sure that we call any outstanding _writecb() that is
+      // associated with this file so that processing of the rest of the form
+      // can continue. This may not happen if the file stream ends right after
+      // backpressure kicks in, so we force it here.
+      this._read();
+      if (--owner._fileEndsLeft === 0 && owner._finalcb) {
+        const cb = owner._finalcb;
+        owner._finalcb = null;
+        // Make sure other 'end' event handlers get a chance to be executed
+        // before busboy's 'finish' event is emitted
+        process.nextTick(cb);
+      }
+    });
+  }
+  _read(n) {
+    const cb = this._readcb;
+    if (cb) {
+      this._readcb = null;
+      cb();
+    }
+  }
+}
+
+const ignoreData = {
+  push: (chunk, pos) => {},
+  destroy: () => {},
+};
+
+function callAndUnsetCb(self, err) {
+  const cb = self._writecb;
+  self._writecb = null;
+  if (err)
+    self.destroy(err);
+  else if (cb)
+    cb();
+}
+
+function nullDecoder(val, hint) {
+  return val;
+}
+
+class Multipart extends Writable {
+  constructor(cfg) {
+    const streamOpts = {
+      autoDestroy: true,
+      emitClose: true,
+      highWaterMark: (typeof cfg.highWaterMark === 'number'
+                      ? cfg.highWaterMark
+                      : undefined),
+    };
+    super(streamOpts);
+
+    if (!cfg.conType.params || typeof cfg.conType.params.boundary !== 'string')
+      throw new Error('Multipart: Boundary not found');
+
+    const boundary = cfg.conType.params.boundary;
+    const paramDecoder = (typeof cfg.defParamCharset === 'string'
+                            && cfg.defParamCharset
+                          ? getDecoder(cfg.defParamCharset)
+                          : nullDecoder);
+    const defCharset = (cfg.defCharset || 'utf8');
+    const preservePath = cfg.preservePath;
+    const fileOpts = {
+      autoDestroy: true,
+      emitClose: true,
+      highWaterMark: (typeof cfg.fileHwm === 'number'
+                      ? cfg.fileHwm
+                      : undefined),
+    };
+
+    const limits = cfg.limits;
+    const fieldSizeLimit = (limits && typeof limits.fieldSize === 'number'
+                            ? limits.fieldSize
+                            : 1 * 1024 * 1024);
+    const fileSizeLimit = (limits && typeof limits.fileSize === 'number'
+                           ? limits.fileSize
+                           : Infinity);
+    const filesLimit = (limits && typeof limits.files === 'number'
+                        ? limits.files
+                        : Infinity);
+    const fieldsLimit = (limits && typeof limits.fields === 'number'
+                         ? limits.fields
+                         : Infinity);
+    const partsLimit = (limits && typeof limits.parts === 'number'
+                        ? limits.parts
+                        : Infinity);
+
+    let parts = -1; // Account for initial boundary
+    let fields = 0;
+    let files = 0;
+    let skipPart = false;
+
+    this._fileEndsLeft = 0;
+    this._fileStream = undefined;
+    this._complete = false;
+    let fileSize = 0;
+
+    let field;
+    let fieldSize = 0;
+    let partCharset;
+    let partEncoding;
+    let partType;
+    let partName;
+    let partTruncated = false;
+
+    let hitFilesLimit = false;
+    let hitFieldsLimit = false;
+
+    this._hparser = null;
+    const hparser = new HeaderParser((header) => {
+      this._hparser = null;
+      skipPart = false;
+
+      partType = 'text/plain';
+      partCharset = defCharset;
+      partEncoding = '7bit';
+      partName = undefined;
+      partTruncated = false;
+
+      let filename;
+      if (!header['content-disposition']) {
+        skipPart = true;
+        return;
+      }
+
+      const disp = parseDisposition(header['content-disposition'][0],
+                                    paramDecoder);
+      if (!disp || disp.type !== 'form-data') {
+        skipPart = true;
+        return;
+      }
+
+      if (disp.params) {
+        if (disp.params.name)
+          partName = disp.params.name;
+
+        if (disp.params['filename*'])
+          filename = disp.params['filename*'];
+        else if (disp.params.filename)
+          filename = disp.params.filename;
+
+        if (filename !== undefined && !preservePath)
+          filename = basename(filename);
+      }
+
+      if (header['content-type']) {
+        const conType = parseContentType(header['content-type'][0]);
+        if (conType) {
+          partType = `${conType.type}/${conType.subtype}`;
+          if (conType.params && typeof conType.params.charset === 'string')
+            partCharset = conType.params.charset.toLowerCase();
+        }
+      }
+
+      if (header['content-transfer-encoding'])
+        partEncoding = header['content-transfer-encoding'][0].toLowerCase();
+
+      if (partType === 'application/octet-stream' || filename !== undefined) {
+        // File
+
+        if (files === filesLimit) {
+          if (!hitFilesLimit) {
+            hitFilesLimit = true;
+            this.emit('filesLimit');
+          }
+          skipPart = true;
+          return;
+        }
+        ++files;
+
+        if (this.listenerCount('file') === 0) {
+          skipPart = true;
+          return;
+        }
+
+        fileSize = 0;
+        this._fileStream = new FileStream(fileOpts, this);
+        ++this._fileEndsLeft;
+        this.emit(
+          'file',
+          partName,
+          this._fileStream,
+          { filename,
+            encoding: partEncoding,
+            mimeType: partType }
+        );
+      } else {
+        // Non-file
+
+        if (fields === fieldsLimit) {
+          if (!hitFieldsLimit) {
+            hitFieldsLimit = true;
+            this.emit('fieldsLimit');
+          }
+          skipPart = true;
+          return;
+        }
+        ++fields;
+
+        if (this.listenerCount('field') === 0) {
+          skipPart = true;
+          return;
+        }
+
+        field = [];
+        fieldSize = 0;
+      }
+    });
+
+    let matchPostBoundary = 0;
+    const ssCb = (isMatch, data, start, end, isDataSafe) => {
+retrydata:
+      while (data) {
+        if (this._hparser !== null) {
+          const ret = this._hparser.push(data, start, end);
+          if (ret === -1) {
+            this._hparser = null;
+            hparser.reset();
+            this.emit('error', new Error('Malformed part header'));
+            break;
+          }
+          start = ret;
+        }
+
+        if (start === end)
+          break;
+
+        if (matchPostBoundary !== 0) {
+          if (matchPostBoundary === 1) {
+            switch (data[start]) {
+              case 45: // '-'
+                // Try matching '--' after boundary
+                matchPostBoundary = 2;
+                ++start;
+                break;
+              case 13: // '\r'
+                // Try matching CR LF before header
+                matchPostBoundary = 3;
+                ++start;
+                break;
+              default:
+                matchPostBoundary = 0;
+            }
+            if (start === end)
+              return;
+          }
+
+          if (matchPostBoundary === 2) {
+            matchPostBoundary = 0;
+            if (data[start] === 45/* '-' */) {
+              // End of multipart data
+              this._complete = true;
+              this._bparser = ignoreData;
+              return;
+            }
+            // We saw something other than '-', so put the dash we consumed
+            // "back"
+            const writecb = this._writecb;
+            this._writecb = noop;
+            ssCb(false, BUF_DASH, 0, 1, false);
+            this._writecb = writecb;
+          } else if (matchPostBoundary === 3) {
+            matchPostBoundary = 0;
+            if (data[start] === 10/* '\n' */) {
+              ++start;
+              if (parts >= partsLimit)
+                break;
+              // Prepare the header parser
+              this._hparser = hparser;
+              if (start === end)
+                break;
+              // Process the remaining data as a header
+              continue retrydata;
+            } else {
+              // We saw something other than LF, so put the CR we consumed
+              // "back"
+              const writecb = this._writecb;
+              this._writecb = noop;
+              ssCb(false, BUF_CR, 0, 1, false);
+              this._writecb = writecb;
+            }
+          }
+        }
+
+        if (!skipPart) {
+          if (this._fileStream) {
+            let chunk;
+            const actualLen = Math.min(end - start, fileSizeLimit - fileSize);
+            if (!isDataSafe) {
+              chunk = Buffer.allocUnsafe(actualLen);
+              data.copy(chunk, 0, start, start + actualLen);
+            } else {
+              chunk = data.slice(start, start + actualLen);
+            }
+
+            fileSize += chunk.length;
+            if (fileSize === fileSizeLimit) {
+              if (chunk.length > 0)
+                this._fileStream.push(chunk);
+              this._fileStream.emit('limit');
+              this._fileStream.truncated = true;
+              skipPart = true;
+            } else if (!this._fileStream.push(chunk)) {
+              if (this._writecb)
+                this._fileStream._readcb = this._writecb;
+              this._writecb = null;
+            }
+          } else if (field !== undefined) {
+            let chunk;
+            const actualLen = Math.min(
+              end - start,
+              fieldSizeLimit - fieldSize
+            );
+            if (!isDataSafe) {
+              chunk = Buffer.allocUnsafe(actualLen);
+              data.copy(chunk, 0, start, start + actualLen);
+            } else {
+              chunk = data.slice(start, start + actualLen);
+            }
+
+            fieldSize += actualLen;
+            field.push(chunk);
+            if (fieldSize === fieldSizeLimit) {
+              skipPart = true;
+              partTruncated = true;
+            }
+          }
+        }
+
+        break;
+      }
+
+      if (isMatch) {
+        matchPostBoundary = 1;
+
+        if (this._fileStream) {
+          // End the active file stream if the previous part was a file
+          this._fileStream.push(null);
+          this._fileStream = null;
+        } else if (field !== undefined) {
+          let data;
+          switch (field.length) {
+            case 0:
+              data = '';
+              break;
+            case 1:
+              data = convertToUTF8(field[0], partCharset, 0);
+              break;
+            default:
+              data = convertToUTF8(
+                Buffer.concat(field, fieldSize),
+                partCharset,
+                0
+              );
+          }
+          field = undefined;
+          fieldSize = 0;
+          this.emit(
+            'field',
+            partName,
+            data,
+            { nameTruncated: false,
+              valueTruncated: partTruncated,
+              encoding: partEncoding,
+              mimeType: partType }
+          );
+        }
+
+        if (++parts === partsLimit)
+          this.emit('partsLimit');
+      }
+    };
+    this._bparser = new StreamSearch(`\r\n--${boundary}`, ssCb);
+
+    this._writecb = null;
+    this._finalcb = null;
+
+    // Just in case there is no preamble
+    this.write(BUF_CRLF);
+  }
+
+  static detect(conType) {
+    return (conType.type === 'multipart' && conType.subtype === 'form-data');
+  }
+
+  _write(chunk, enc, cb) {
+    this._writecb = cb;
+    this._bparser.push(chunk, 0);
+    if (this._writecb)
+      callAndUnsetCb(this);
+  }
+
+  _destroy(err, cb) {
+    this._hparser = null;
+    this._bparser = ignoreData;
+    if (!err)
+      err = checkEndState(this);
+    const fileStream = this._fileStream;
+    if (fileStream) {
+      this._fileStream = null;
+      fileStream.destroy(err);
+    }
+    cb(err);
+  }
+
+  _final(cb) {
+    this._bparser.destroy();
+    if (!this._complete)
+      return cb(new Error('Unexpected end of form'));
+    if (this._fileEndsLeft)
+      this._finalcb = finalcb.bind(null, this, cb);
+    else
+      finalcb(this, cb);
+  }
+}
+
+function finalcb(self, cb, err) {
+  if (err)
+    return cb(err);
+  err = checkEndState(self);
+  cb(err);
+}
+
+function checkEndState(self) {
+  if (self._hparser)
+    return new Error('Malformed part header');
+  const fileStream = self._fileStream;
+  if (fileStream) {
+    self._fileStream = null;
+    fileStream.destroy(new Error('Unexpected end of file'));
+  }
+  if (!self._complete)
+    return new Error('Unexpected end of form');
+}
+
+const TOKEN = [
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,
+  0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+];
+
+const FIELD_VCHAR = [
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+];
+
+module.exports = Multipart;
diff --git a/backend/node_modules/busboy/lib/types/urlencoded.js b/backend/node_modules/busboy/lib/types/urlencoded.js
new file mode 100644
index 0000000..5c463a2
--- /dev/null
+++ b/backend/node_modules/busboy/lib/types/urlencoded.js
@@ -0,0 +1,350 @@
+'use strict';
+
+const { Writable } = require('stream');
+
+const { getDecoder } = require('../utils.js');
+
+class URLEncoded extends Writable {
+  constructor(cfg) {
+    const streamOpts = {
+      autoDestroy: true,
+      emitClose: true,
+      highWaterMark: (typeof cfg.highWaterMark === 'number'
+                      ? cfg.highWaterMark
+                      : undefined),
+    };
+    super(streamOpts);
+
+    let charset = (cfg.defCharset || 'utf8');
+    if (cfg.conType.params && typeof cfg.conType.params.charset === 'string')
+      charset = cfg.conType.params.charset;
+
+    this.charset = charset;
+
+    const limits = cfg.limits;
+    this.fieldSizeLimit = (limits && typeof limits.fieldSize === 'number'
+                           ? limits.fieldSize
+                           : 1 * 1024 * 1024);
+    this.fieldsLimit = (limits && typeof limits.fields === 'number'
+                        ? limits.fields
+                        : Infinity);
+    this.fieldNameSizeLimit = (
+      limits && typeof limits.fieldNameSize === 'number'
+      ? limits.fieldNameSize
+      : 100
+    );
+
+    this._inKey = true;
+    this._keyTrunc = false;
+    this._valTrunc = false;
+    this._bytesKey = 0;
+    this._bytesVal = 0;
+    this._fields = 0;
+    this._key = '';
+    this._val = '';
+    this._byte = -2;
+    this._lastPos = 0;
+    this._encode = 0;
+    this._decoder = getDecoder(charset);
+  }
+
+  static detect(conType) {
+    return (conType.type === 'application'
+            && conType.subtype === 'x-www-form-urlencoded');
+  }
+
+  _write(chunk, enc, cb) {
+    if (this._fields >= this.fieldsLimit)
+      return cb();
+
+    let i = 0;
+    const len = chunk.length;
+    this._lastPos = 0;
+
+    // Check if we last ended mid-percent-encoded byte
+    if (this._byte !== -2) {
+      i = readPctEnc(this, chunk, i, len);
+      if (i === -1)
+        return cb(new Error('Malformed urlencoded form'));
+      if (i >= len)
+        return cb();
+      if (this._inKey)
+        ++this._bytesKey;
+      else
+        ++this._bytesVal;
+    }
+
+main:
+    while (i < len) {
+      if (this._inKey) {
+        // Parsing key
+
+        i = skipKeyBytes(this, chunk, i, len);
+
+        while (i < len) {
+          switch (chunk[i]) {
+            case 61: // '='
+              if (this._lastPos < i)
+                this._key += chunk.latin1Slice(this._lastPos, i);
+              this._lastPos = ++i;
+              this._key = this._decoder(this._key, this._encode);
+              this._encode = 0;
+              this._inKey = false;
+              continue main;
+            case 38: // '&'
+              if (this._lastPos < i)
+                this._key += chunk.latin1Slice(this._lastPos, i);
+              this._lastPos = ++i;
+              this._key = this._decoder(this._key, this._encode);
+              this._encode = 0;
+              if (this._bytesKey > 0) {
+                this.emit(
+                  'field',
+                  this._key,
+                  '',
+                  { nameTruncated: this._keyTrunc,
+                    valueTruncated: false,
+                    encoding: this.charset,
+                    mimeType: 'text/plain' }
+                );
+              }
+              this._key = '';
+              this._val = '';
+              this._keyTrunc = false;
+              this._valTrunc = false;
+              this._bytesKey = 0;
+              this._bytesVal = 0;
+              if (++this._fields >= this.fieldsLimit) {
+                this.emit('fieldsLimit');
+                return cb();
+              }
+              continue;
+            case 43: // '+'
+              if (this._lastPos < i)
+                this._key += chunk.latin1Slice(this._lastPos, i);
+              this._key += ' ';
+              this._lastPos = i + 1;
+              break;
+            case 37: // '%'
+              if (this._encode === 0)
+                this._encode = 1;
+              if (this._lastPos < i)
+                this._key += chunk.latin1Slice(this._lastPos, i);
+              this._lastPos = i + 1;
+              this._byte = -1;
+              i = readPctEnc(this, chunk, i + 1, len);
+              if (i === -1)
+                return cb(new Error('Malformed urlencoded form'));
+              if (i >= len)
+                return cb();
+              ++this._bytesKey;
+              i = skipKeyBytes(this, chunk, i, len);
+              continue;
+          }
+          ++i;
+          ++this._bytesKey;
+          i = skipKeyBytes(this, chunk, i, len);
+        }
+        if (this._lastPos < i)
+          this._key += chunk.latin1Slice(this._lastPos, i);
+      } else {
+        // Parsing value
+
+        i = skipValBytes(this, chunk, i, len);
+
+        while (i < len) {
+          switch (chunk[i]) {
+            case 38: // '&'
+              if (this._lastPos < i)
+                this._val += chunk.latin1Slice(this._lastPos, i);
+              this._lastPos = ++i;
+              this._inKey = true;
+              this._val = this._decoder(this._val, this._encode);
+              this._encode = 0;
+              if (this._bytesKey > 0 || this._bytesVal > 0) {
+                this.emit(
+                  'field',
+                  this._key,
+                  this._val,
+                  { nameTruncated: this._keyTrunc,
+                    valueTruncated: this._valTrunc,
+                    encoding: this.charset,
+                    mimeType: 'text/plain' }
+                );
+              }
+              this._key = '';
+              this._val = '';
+              this._keyTrunc = false;
+              this._valTrunc = false;
+              this._bytesKey = 0;
+              this._bytesVal = 0;
+              if (++this._fields >= this.fieldsLimit) {
+                this.emit('fieldsLimit');
+                return cb();
+              }
+              continue main;
+            case 43: // '+'
+              if (this._lastPos < i)
+                this._val += chunk.latin1Slice(this._lastPos, i);
+              this._val += ' ';
+              this._lastPos = i + 1;
+              break;
+            case 37: // '%'
+              if (this._encode === 0)
+                this._encode = 1;
+              if (this._lastPos < i)
+                this._val += chunk.latin1Slice(this._lastPos, i);
+              this._lastPos = i + 1;
+              this._byte = -1;
+              i = readPctEnc(this, chunk, i + 1, len);
+              if (i === -1)
+                return cb(new Error('Malformed urlencoded form'));
+              if (i >= len)
+                return cb();
+              ++this._bytesVal;
+              i = skipValBytes(this, chunk, i, len);
+              continue;
+          }
+          ++i;
+          ++this._bytesVal;
+          i = skipValBytes(this, chunk, i, len);
+        }
+        if (this._lastPos < i)
+          this._val += chunk.latin1Slice(this._lastPos, i);
+      }
+    }
+
+    cb();
+  }
+
+  _final(cb) {
+    if (this._byte !== -2)
+      return cb(new Error('Malformed urlencoded form'));
+    if (!this._inKey || this._bytesKey > 0 || this._bytesVal > 0) {
+      if (this._inKey)
+        this._key = this._decoder(this._key, this._encode);
+      else
+        this._val = this._decoder(this._val, this._encode);
+      this.emit(
+        'field',
+        this._key,
+        this._val,
+        { nameTruncated: this._keyTrunc,
+          valueTruncated: this._valTrunc,
+          encoding: this.charset,
+          mimeType: 'text/plain' }
+      );
+    }
+    cb();
+  }
+}
+
+function readPctEnc(self, chunk, pos, len) {
+  if (pos >= len)
+    return len;
+
+  if (self._byte === -1) {
+    // We saw a '%' but no hex characters yet
+    const hexUpper = HEX_VALUES[chunk[pos++]];
+    if (hexUpper === -1)
+      return -1;
+
+    if (hexUpper >= 8)
+      self._encode = 2; // Indicate high bits detected
+
+    if (pos < len) {
+      // Both hex characters are in this chunk
+      const hexLower = HEX_VALUES[chunk[pos++]];
+      if (hexLower === -1)
+        return -1;
+
+      if (self._inKey)
+        self._key += String.fromCharCode((hexUpper << 4) + hexLower);
+      else
+        self._val += String.fromCharCode((hexUpper << 4) + hexLower);
+
+      self._byte = -2;
+      self._lastPos = pos;
+    } else {
+      // Only one hex character was available in this chunk
+      self._byte = hexUpper;
+    }
+  } else {
+    // We saw only one hex character so far
+    const hexLower = HEX_VALUES[chunk[pos++]];
+    if (hexLower === -1)
+      return -1;
+
+    if (self._inKey)
+      self._key += String.fromCharCode((self._byte << 4) + hexLower);
+    else
+      self._val += String.fromCharCode((self._byte << 4) + hexLower);
+
+    self._byte = -2;
+    self._lastPos = pos;
+  }
+
+  return pos;
+}
+
+function skipKeyBytes(self, chunk, pos, len) {
+  // Skip bytes if we've truncated
+  if (self._bytesKey > self.fieldNameSizeLimit) {
+    if (!self._keyTrunc) {
+      if (self._lastPos < pos)
+        self._key += chunk.latin1Slice(self._lastPos, pos - 1);
+    }
+    self._keyTrunc = true;
+    for (; pos < len; ++pos) {
+      const code = chunk[pos];
+      if (code === 61/* '=' */ || code === 38/* '&' */)
+        break;
+      ++self._bytesKey;
+    }
+    self._lastPos = pos;
+  }
+
+  return pos;
+}
+
+function skipValBytes(self, chunk, pos, len) {
+  // Skip bytes if we've truncated
+  if (self._bytesVal > self.fieldSizeLimit) {
+    if (!self._valTrunc) {
+      if (self._lastPos < pos)
+        self._val += chunk.latin1Slice(self._lastPos, pos - 1);
+    }
+    self._valTrunc = true;
+    for (; pos < len; ++pos) {
+      if (chunk[pos] === 38/* '&' */)
+        break;
+      ++self._bytesVal;
+    }
+    self._lastPos = pos;
+  }
+
+  return pos;
+}
+
+/* eslint-disable no-multi-spaces */
+const HEX_VALUES = [
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+   0,  1,  2,  3,  4,  5,  6,  7,  8,  9, -1, -1, -1, -1, -1, -1,
+  -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+];
+/* eslint-enable no-multi-spaces */
+
+module.exports = URLEncoded;
diff --git a/backend/node_modules/busboy/lib/utils.js b/backend/node_modules/busboy/lib/utils.js
new file mode 100644
index 0000000..8274f6c
--- /dev/null
+++ b/backend/node_modules/busboy/lib/utils.js
@@ -0,0 +1,596 @@
+'use strict';
+
+function parseContentType(str) {
+  if (str.length === 0)
+    return;
+
+  const params = Object.create(null);
+  let i = 0;
+
+  // Parse type
+  for (; i < str.length; ++i) {
+    const code = str.charCodeAt(i);
+    if (TOKEN[code] !== 1) {
+      if (code !== 47/* '/' */ || i === 0)
+        return;
+      break;
+    }
+  }
+  // Check for type without subtype
+  if (i === str.length)
+    return;
+
+  const type = str.slice(0, i).toLowerCase();
+
+  // Parse subtype
+  const subtypeStart = ++i;
+  for (; i < str.length; ++i) {
+    const code = str.charCodeAt(i);
+    if (TOKEN[code] !== 1) {
+      // Make sure we have a subtype
+      if (i === subtypeStart)
+        return;
+
+      if (parseContentTypeParams(str, i, params) === undefined)
+        return;
+      break;
+    }
+  }
+  // Make sure we have a subtype
+  if (i === subtypeStart)
+    return;
+
+  const subtype = str.slice(subtypeStart, i).toLowerCase();
+
+  return { type, subtype, params };
+}
+
+function parseContentTypeParams(str, i, params) {
+  while (i < str.length) {
+    // Consume whitespace
+    for (; i < str.length; ++i) {
+      const code = str.charCodeAt(i);
+      if (code !== 32/* ' ' */ && code !== 9/* '\t' */)
+        break;
+    }
+
+    // Ended on whitespace
+    if (i === str.length)
+      break;
+
+    // Check for malformed parameter
+    if (str.charCodeAt(i++) !== 59/* ';' */)
+      return;
+
+    // Consume whitespace
+    for (; i < str.length; ++i) {
+      const code = str.charCodeAt(i);
+      if (code !== 32/* ' ' */ && code !== 9/* '\t' */)
+        break;
+    }
+
+    // Ended on whitespace (malformed)
+    if (i === str.length)
+      return;
+
+    let name;
+    const nameStart = i;
+    // Parse parameter name
+    for (; i < str.length; ++i) {
+      const code = str.charCodeAt(i);
+      if (TOKEN[code] !== 1) {
+        if (code !== 61/* '=' */)
+          return;
+        break;
+      }
+    }
+
+    // No value (malformed)
+    if (i === str.length)
+      return;
+
+    name = str.slice(nameStart, i);
+    ++i; // Skip over '='
+
+    // No value (malformed)
+    if (i === str.length)
+      return;
+
+    let value = '';
+    let valueStart;
+    if (str.charCodeAt(i) === 34/* '"' */) {
+      valueStart = ++i;
+      let escaping = false;
+      // Parse quoted value
+      for (; i < str.length; ++i) {
+        const code = str.charCodeAt(i);
+        if (code === 92/* '\\' */) {
+          if (escaping) {
+            valueStart = i;
+            escaping = false;
+          } else {
+            value += str.slice(valueStart, i);
+            escaping = true;
+          }
+          continue;
+        }
+        if (code === 34/* '"' */) {
+          if (escaping) {
+            valueStart = i;
+            escaping = false;
+            continue;
+          }
+          value += str.slice(valueStart, i);
+          break;
+        }
+        if (escaping) {
+          valueStart = i - 1;
+          escaping = false;
+        }
+        // Invalid unescaped quoted character (malformed)
+        if (QDTEXT[code] !== 1)
+          return;
+      }
+
+      // No end quote (malformed)
+      if (i === str.length)
+        return;
+
+      ++i; // Skip over double quote
+    } else {
+      valueStart = i;
+      // Parse unquoted value
+      for (; i < str.length; ++i) {
+        const code = str.charCodeAt(i);
+        if (TOKEN[code] !== 1) {
+          // No value (malformed)
+          if (i === valueStart)
+            return;
+          break;
+        }
+      }
+      value = str.slice(valueStart, i);
+    }
+
+    name = name.toLowerCase();
+    if (params[name] === undefined)
+      params[name] = value;
+  }
+
+  return params;
+}
+
+function parseDisposition(str, defDecoder) {
+  if (str.length === 0)
+    return;
+
+  const params = Object.create(null);
+  let i = 0;
+
+  for (; i < str.length; ++i) {
+    const code = str.charCodeAt(i);
+    if (TOKEN[code] !== 1) {
+      if (parseDispositionParams(str, i, params, defDecoder) === undefined)
+        return;
+      break;
+    }
+  }
+
+  const type = str.slice(0, i).toLowerCase();
+
+  return { type, params };
+}
+
+function parseDispositionParams(str, i, params, defDecoder) {
+  while (i < str.length) {
+    // Consume whitespace
+    for (; i < str.length; ++i) {
+      const code = str.charCodeAt(i);
+      if (code !== 32/* ' ' */ && code !== 9/* '\t' */)
+        break;
+    }
+
+    // Ended on whitespace
+    if (i === str.length)
+      break;
+
+    // Check for malformed parameter
+    if (str.charCodeAt(i++) !== 59/* ';' */)
+      return;
+
+    // Consume whitespace
+    for (; i < str.length; ++i) {
+      const code = str.charCodeAt(i);
+      if (code !== 32/* ' ' */ && code !== 9/* '\t' */)
+        break;
+    }
+
+    // Ended on whitespace (malformed)
+    if (i === str.length)
+      return;
+
+    let name;
+    const nameStart = i;
+    // Parse parameter name
+    for (; i < str.length; ++i) {
+      const code = str.charCodeAt(i);
+      if (TOKEN[code] !== 1) {
+        if (code === 61/* '=' */)
+          break;
+        return;
+      }
+    }
+
+    // No value (malformed)
+    if (i === str.length)
+      return;
+
+    let value = '';
+    let valueStart;
+    let charset;
+    //~ let lang;
+    name = str.slice(nameStart, i);
+    if (name.charCodeAt(name.length - 1) === 42/* '*' */) {
+      // Extended value
+
+      const charsetStart = ++i;
+      // Parse charset name
+      for (; i < str.length; ++i) {
+        const code = str.charCodeAt(i);
+        if (CHARSET[code] !== 1) {
+          if (code !== 39/* '\'' */)
+            return;
+          break;
+        }
+      }
+
+      // Incomplete charset (malformed)
+      if (i === str.length)
+        return;
+
+      charset = str.slice(charsetStart, i);
+      ++i; // Skip over the '\''
+
+      //~ const langStart = ++i;
+      // Parse language name
+      for (; i < str.length; ++i) {
+        const code = str.charCodeAt(i);
+        if (code === 39/* '\'' */)
+          break;
+      }
+
+      // Incomplete language (malformed)
+      if (i === str.length)
+        return;
+
+      //~ lang = str.slice(langStart, i);
+      ++i; // Skip over the '\''
+
+      // No value (malformed)
+      if (i === str.length)
+        return;
+
+      valueStart = i;
+
+      let encode = 0;
+      // Parse value
+      for (; i < str.length; ++i) {
+        const code = str.charCodeAt(i);
+        if (EXTENDED_VALUE[code] !== 1) {
+          if (code === 37/* '%' */) {
+            let hexUpper;
+            let hexLower;
+            if (i + 2 < str.length
+                && (hexUpper = HEX_VALUES[str.charCodeAt(i + 1)]) !== -1
+                && (hexLower = HEX_VALUES[str.charCodeAt(i + 2)]) !== -1) {
+              const byteVal = (hexUpper << 4) + hexLower;
+              value += str.slice(valueStart, i);
+              value += String.fromCharCode(byteVal);
+              i += 2;
+              valueStart = i + 1;
+              if (byteVal >= 128)
+                encode = 2;
+              else if (encode === 0)
+                encode = 1;
+              continue;
+            }
+            // '%' disallowed in non-percent encoded contexts (malformed)
+            return;
+          }
+          break;
+        }
+      }
+
+      value += str.slice(valueStart, i);
+      value = convertToUTF8(value, charset, encode);
+      if (value === undefined)
+        return;
+    } else {
+      // Non-extended value
+
+      ++i; // Skip over '='
+
+      // No value (malformed)
+      if (i === str.length)
+        return;
+
+      if (str.charCodeAt(i) === 34/* '"' */) {
+        valueStart = ++i;
+        let escaping = false;
+        // Parse quoted value
+        for (; i < str.length; ++i) {
+          const code = str.charCodeAt(i);
+          if (code === 92/* '\\' */) {
+            if (escaping) {
+              valueStart = i;
+              escaping = false;
+            } else {
+              value += str.slice(valueStart, i);
+              escaping = true;
+            }
+            continue;
+          }
+          if (code === 34/* '"' */) {
+            if (escaping) {
+              valueStart = i;
+              escaping = false;
+              continue;
+            }
+            value += str.slice(valueStart, i);
+            break;
+          }
+          if (escaping) {
+            valueStart = i - 1;
+            escaping = false;
+          }
+          // Invalid unescaped quoted character (malformed)
+          if (QDTEXT[code] !== 1)
+            return;
+        }
+
+        // No end quote (malformed)
+        if (i === str.length)
+          return;
+
+        ++i; // Skip over double quote
+      } else {
+        valueStart = i;
+        // Parse unquoted value
+        for (; i < str.length; ++i) {
+          const code = str.charCodeAt(i);
+          if (TOKEN[code] !== 1) {
+            // No value (malformed)
+            if (i === valueStart)
+              return;
+            break;
+          }
+        }
+        value = str.slice(valueStart, i);
+      }
+
+      value = defDecoder(value, 2);
+      if (value === undefined)
+        return;
+    }
+
+    name = name.toLowerCase();
+    if (params[name] === undefined)
+      params[name] = value;
+  }
+
+  return params;
+}
+
+function getDecoder(charset) {
+  let lc;
+  while (true) {
+    switch (charset) {
+      case 'utf-8':
+      case 'utf8':
+        return decoders.utf8;
+      case 'latin1':
+      case 'ascii': // TODO: Make these a separate, strict decoder?
+      case 'us-ascii':
+      case 'iso-8859-1':
+      case 'iso8859-1':
+      case 'iso88591':
+      case 'iso_8859-1':
+      case 'windows-1252':
+      case 'iso_8859-1:1987':
+      case 'cp1252':
+      case 'x-cp1252':
+        return decoders.latin1;
+      case 'utf16le':
+      case 'utf-16le':
+      case 'ucs2':
+      case 'ucs-2':
+        return decoders.utf16le;
+      case 'base64':
+        return decoders.base64;
+      default:
+        if (lc === undefined) {
+          lc = true;
+          charset = charset.toLowerCase();
+          continue;
+        }
+        return decoders.other.bind(charset);
+    }
+  }
+}
+
+const decoders = {
+  utf8: (data, hint) => {
+    if (data.length === 0)
+      return '';
+    if (typeof data === 'string') {
+      // If `data` never had any percent-encoded bytes or never had any that
+      // were outside of the ASCII range, then we can safely just return the
+      // input since UTF-8 is ASCII compatible
+      if (hint < 2)
+        return data;
+
+      data = Buffer.from(data, 'latin1');
+    }
+    return data.utf8Slice(0, data.length);
+  },
+
+  latin1: (data, hint) => {
+    if (data.length === 0)
+      return '';
+    if (typeof data === 'string')
+      return data;
+    return data.latin1Slice(0, data.length);
+  },
+
+  utf16le: (data, hint) => {
+    if (data.length === 0)
+      return '';
+    if (typeof data === 'string')
+      data = Buffer.from(data, 'latin1');
+    return data.ucs2Slice(0, data.length);
+  },
+
+  base64: (data, hint) => {
+    if (data.length === 0)
+      return '';
+    if (typeof data === 'string')
+      data = Buffer.from(data, 'latin1');
+    return data.base64Slice(0, data.length);
+  },
+
+  other: (data, hint) => {
+    if (data.length === 0)
+      return '';
+    if (typeof data === 'string')
+      data = Buffer.from(data, 'latin1');
+    try {
+      const decoder = new TextDecoder(this);
+      return decoder.decode(data);
+    } catch {}
+  },
+};
+
+function convertToUTF8(data, charset, hint) {
+  const decode = getDecoder(charset);
+  if (decode)
+    return decode(data, hint);
+}
+
+function basename(path) {
+  if (typeof path !== 'string')
+    return '';
+  for (let i = path.length - 1; i >= 0; --i) {
+    switch (path.charCodeAt(i)) {
+      case 0x2F: // '/'
+      case 0x5C: // '\'
+        path = path.slice(i + 1);
+        return (path === '..' || path === '.' ? '' : path);
+    }
+  }
+  return (path === '..' || path === '.' ? '' : path);
+}
+
+const TOKEN = [
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,
+  0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+];
+
+const QDTEXT = [
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+];
+
+const CHARSET = [
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 1, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,
+  0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+];
+
+const EXTENDED_VALUE = [
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 1, 0, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 0,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,
+  0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+];
+
+/* eslint-disable no-multi-spaces */
+const HEX_VALUES = [
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+   0,  1,  2,  3,  4,  5,  6,  7,  8,  9, -1, -1, -1, -1, -1, -1,
+  -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+];
+/* eslint-enable no-multi-spaces */
+
+module.exports = {
+  basename,
+  convertToUTF8,
+  getDecoder,
+  parseContentType,
+  parseDisposition,
+};
diff --git a/backend/node_modules/busboy/package.json b/backend/node_modules/busboy/package.json
new file mode 100644
index 0000000..ac2577f
--- /dev/null
+++ b/backend/node_modules/busboy/package.json
@@ -0,0 +1,22 @@
+{ "name": "busboy",
+  "version": "1.6.0",
+  "author": "Brian White <mscdex@mscdex.net>",
+  "description": "A streaming parser for HTML form data for node.js",
+  "main": "./lib/index.js",
+  "dependencies": {
+    "streamsearch": "^1.1.0"
+  },
+  "devDependencies": {
+    "@mscdex/eslint-config": "^1.1.0",
+    "eslint": "^7.32.0"
+  },
+  "scripts": {
+    "test": "node test/test.js",
+    "lint": "eslint --cache --report-unused-disable-directives --ext=.js .eslintrc.js lib test bench",
+    "lint:fix": "npm run lint -- --fix"
+  },
+  "engines": { "node": ">=10.16.0" },
+  "keywords": [ "uploads", "forms", "multipart", "form-data" ],
+  "licenses": [ { "type": "MIT", "url": "http://github.com/mscdex/busboy/raw/master/LICENSE" } ],
+  "repository": { "type": "git", "url": "http://github.com/mscdex/busboy.git" }
+}
diff --git a/backend/node_modules/busboy/test/common.js b/backend/node_modules/busboy/test/common.js
new file mode 100644
index 0000000..fb82ad8
--- /dev/null
+++ b/backend/node_modules/busboy/test/common.js
@@ -0,0 +1,109 @@
+'use strict';
+
+const assert = require('assert');
+const { inspect } = require('util');
+
+const mustCallChecks = [];
+
+function noop() {}
+
+function runCallChecks(exitCode) {
+  if (exitCode !== 0) return;
+
+  const failed = mustCallChecks.filter((context) => {
+    if ('minimum' in context) {
+      context.messageSegment = `at least ${context.minimum}`;
+      return context.actual < context.minimum;
+    }
+    context.messageSegment = `exactly ${context.exact}`;
+    return context.actual !== context.exact;
+  });
+
+  failed.forEach((context) => {
+    console.error('Mismatched %s function calls. Expected %s, actual %d.',
+                  context.name,
+                  context.messageSegment,
+                  context.actual);
+    console.error(context.stack.split('\n').slice(2).join('\n'));
+  });
+
+  if (failed.length)
+    process.exit(1);
+}
+
+function mustCall(fn, exact) {
+  return _mustCallInner(fn, exact, 'exact');
+}
+
+function mustCallAtLeast(fn, minimum) {
+  return _mustCallInner(fn, minimum, 'minimum');
+}
+
+function _mustCallInner(fn, criteria = 1, field) {
+  if (process._exiting)
+    throw new Error('Cannot use common.mustCall*() in process exit handler');
+
+  if (typeof fn === 'number') {
+    criteria = fn;
+    fn = noop;
+  } else if (fn === undefined) {
+    fn = noop;
+  }
+
+  if (typeof criteria !== 'number')
+    throw new TypeError(`Invalid ${field} value: ${criteria}`);
+
+  const context = {
+    [field]: criteria,
+    actual: 0,
+    stack: inspect(new Error()),
+    name: fn.name || '<anonymous>'
+  };
+
+  // Add the exit listener only once to avoid listener leak warnings
+  if (mustCallChecks.length === 0)
+    process.on('exit', runCallChecks);
+
+  mustCallChecks.push(context);
+
+  function wrapped(...args) {
+    ++context.actual;
+    return fn.call(this, ...args);
+  }
+  // TODO: remove origFn?
+  wrapped.origFn = fn;
+
+  return wrapped;
+}
+
+function getCallSite(top) {
+  const originalStackFormatter = Error.prepareStackTrace;
+  Error.prepareStackTrace = (err, stack) =>
+    `${stack[0].getFileName()}:${stack[0].getLineNumber()}`;
+  const err = new Error();
+  Error.captureStackTrace(err, top);
+  // With the V8 Error API, the stack is not formatted until it is accessed
+  // eslint-disable-next-line no-unused-expressions
+  err.stack;
+  Error.prepareStackTrace = originalStackFormatter;
+  return err.stack;
+}
+
+function mustNotCall(msg) {
+  const callSite = getCallSite(mustNotCall);
+  return function mustNotCall(...args) {
+    args = args.map(inspect).join(', ');
+    const argsInfo = (args.length > 0
+                      ? `\ncalled with arguments: ${args}`
+                      : '');
+    assert.fail(
+      `${msg || 'function should not have been called'} at ${callSite}`
+        + argsInfo);
+  };
+}
+
+module.exports = {
+  mustCall,
+  mustCallAtLeast,
+  mustNotCall,
+};
diff --git a/backend/node_modules/busboy/test/test-types-multipart-charsets.js b/backend/node_modules/busboy/test/test-types-multipart-charsets.js
new file mode 100644
index 0000000..ed9c38a
--- /dev/null
+++ b/backend/node_modules/busboy/test/test-types-multipart-charsets.js
@@ -0,0 +1,94 @@
+'use strict';
+
+const assert = require('assert');
+const { inspect } = require('util');
+
+const { mustCall } = require(`${__dirname}/common.js`);
+
+const busboy = require('..');
+
+const input = Buffer.from([
+  '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+ 'Content-Disposition: form-data; '
+   + 'name="upload_file_0"; filename="テスト.dat"',
+ 'Content-Type: application/octet-stream',
+ '',
+ 'A'.repeat(1023),
+ '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k--'
+].join('\r\n'));
+const boundary = '---------------------------paZqsnEHRufoShdX6fh0lUhXBP4k';
+const expected = [
+  { type: 'file',
+    name: 'upload_file_0',
+    data: Buffer.from('A'.repeat(1023)),
+    info: {
+      filename: 'テスト.dat',
+      encoding: '7bit',
+      mimeType: 'application/octet-stream',
+    },
+    limited: false,
+  },
+];
+const bb = busboy({
+  defParamCharset: 'utf8',
+  headers: {
+    'content-type': `multipart/form-data; boundary=${boundary}`,
+  }
+});
+const results = [];
+
+bb.on('field', (name, val, info) => {
+  results.push({ type: 'field', name, val, info });
+});
+
+bb.on('file', (name, stream, info) => {
+  const data = [];
+  let nb = 0;
+  const file = {
+    type: 'file',
+    name,
+    data: null,
+    info,
+    limited: false,
+  };
+  results.push(file);
+  stream.on('data', (d) => {
+    data.push(d);
+    nb += d.length;
+  }).on('limit', () => {
+    file.limited = true;
+  }).on('close', () => {
+    file.data = Buffer.concat(data, nb);
+    assert.strictEqual(stream.truncated, file.limited);
+  }).once('error', (err) => {
+    file.err = err.message;
+  });
+});
+
+bb.on('error', (err) => {
+  results.push({ error: err.message });
+});
+
+bb.on('partsLimit', () => {
+  results.push('partsLimit');
+});
+
+bb.on('filesLimit', () => {
+  results.push('filesLimit');
+});
+
+bb.on('fieldsLimit', () => {
+  results.push('fieldsLimit');
+});
+
+bb.on('close', mustCall(() => {
+  assert.deepStrictEqual(
+    results,
+    expected,
+    'Results mismatch.\n'
+      + `Parsed: ${inspect(results)}\n`
+      + `Expected: ${inspect(expected)}`
+  );
+}));
+
+bb.end(input);
diff --git a/backend/node_modules/busboy/test/test-types-multipart-stream-pause.js b/backend/node_modules/busboy/test/test-types-multipart-stream-pause.js
new file mode 100644
index 0000000..df7268a
--- /dev/null
+++ b/backend/node_modules/busboy/test/test-types-multipart-stream-pause.js
@@ -0,0 +1,102 @@
+'use strict';
+
+const assert = require('assert');
+const { randomFillSync } = require('crypto');
+const { inspect } = require('util');
+
+const busboy = require('..');
+
+const { mustCall } = require('./common.js');
+
+const BOUNDARY = 'u2KxIV5yF1y+xUspOQCCZopaVgeV6Jxihv35XQJmuTx8X3sh';
+
+function formDataSection(key, value) {
+  return Buffer.from(
+    `\r\n--${BOUNDARY}`
+      + `\r\nContent-Disposition: form-data; name="${key}"`
+      + `\r\n\r\n${value}`
+  );
+}
+
+function formDataFile(key, filename, contentType) {
+  const buf = Buffer.allocUnsafe(100000);
+  return Buffer.concat([
+    Buffer.from(`\r\n--${BOUNDARY}\r\n`),
+    Buffer.from(`Content-Disposition: form-data; name="${key}"`
+                  + `; filename="${filename}"\r\n`),
+    Buffer.from(`Content-Type: ${contentType}\r\n\r\n`),
+    randomFillSync(buf)
+  ]);
+}
+
+const reqChunks = [
+  Buffer.concat([
+    formDataFile('file', 'file.bin', 'application/octet-stream'),
+    formDataSection('foo', 'foo value'),
+  ]),
+  formDataSection('bar', 'bar value'),
+  Buffer.from(`\r\n--${BOUNDARY}--\r\n`)
+];
+const bb = busboy({
+  headers: {
+    'content-type': `multipart/form-data; boundary=${BOUNDARY}`
+  }
+});
+const expected = [
+  { type: 'file',
+    name: 'file',
+    info: {
+      filename: 'file.bin',
+      encoding: '7bit',
+      mimeType: 'application/octet-stream',
+    },
+  },
+  { type: 'field',
+    name: 'foo',
+    val: 'foo value',
+    info: {
+      nameTruncated: false,
+      valueTruncated: false,
+      encoding: '7bit',
+      mimeType: 'text/plain',
+    },
+  },
+  { type: 'field',
+    name: 'bar',
+    val: 'bar value',
+    info: {
+      nameTruncated: false,
+      valueTruncated: false,
+      encoding: '7bit',
+      mimeType: 'text/plain',
+    },
+  },
+];
+const results = [];
+
+bb.on('field', (name, val, info) => {
+  results.push({ type: 'field', name, val, info });
+});
+
+bb.on('file', (name, stream, info) => {
+  results.push({ type: 'file', name, info });
+  // Simulate a pipe where the destination is pausing (perhaps due to waiting
+  // for file system write to finish)
+  setTimeout(() => {
+    stream.resume();
+  }, 10);
+});
+
+bb.on('close', mustCall(() => {
+  assert.deepStrictEqual(
+    results,
+    expected,
+    'Results mismatch.\n'
+      + `Parsed: ${inspect(results)}\n`
+      + `Expected: ${inspect(expected)}`
+  );
+}));
+
+for (const chunk of reqChunks)
+  bb.write(chunk);
+bb.end();
diff --git a/backend/node_modules/busboy/test/test-types-multipart.js b/backend/node_modules/busboy/test/test-types-multipart.js
new file mode 100644
index 0000000..9755642
--- /dev/null
+++ b/backend/node_modules/busboy/test/test-types-multipart.js
@@ -0,0 +1,1053 @@
+'use strict';
+
+const assert = require('assert');
+const { inspect } = require('util');
+
+const busboy = require('..');
+
+const active = new Map();
+
+const tests = [
+  { source: [
+      ['-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; name="file_name_0"',
+       '',
+       'super alpha file',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; name="file_name_1"',
+       '',
+       'super beta file',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + 'name="upload_file_0"; filename="1k_a.dat"',
+       'Content-Type: application/octet-stream',
+       '',
+       'A'.repeat(1023),
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + 'name="upload_file_1"; filename="1k_b.dat"',
+       'Content-Type: application/octet-stream',
+       '',
+       'B'.repeat(1023),
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k--'
+      ].join('\r\n')
+    ],
+    boundary: '---------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+    expected: [
+      { type: 'field',
+        name: 'file_name_0',
+        val: 'super alpha file',
+        info: {
+          nameTruncated: false,
+          valueTruncated: false,
+          encoding: '7bit',
+          mimeType: 'text/plain',
+        },
+      },
+      { type: 'field',
+        name: 'file_name_1',
+        val: 'super beta file',
+        info: {
+          nameTruncated: false,
+          valueTruncated: false,
+          encoding: '7bit',
+          mimeType: 'text/plain',
+        },
+      },
+      { type: 'file',
+        name: 'upload_file_0',
+        data: Buffer.from('A'.repeat(1023)),
+        info: {
+          filename: '1k_a.dat',
+          encoding: '7bit',
+          mimeType: 'application/octet-stream',
+        },
+        limited: false,
+      },
+      { type: 'file',
+        name: 'upload_file_1',
+        data: Buffer.from('B'.repeat(1023)),
+        info: {
+          filename: '1k_b.dat',
+          encoding: '7bit',
+          mimeType: 'application/octet-stream',
+        },
+        limited: false,
+      },
+    ],
+    what: 'Fields and files'
+  },
+  { source: [
+      ['------WebKitFormBoundaryTB2MiQ36fnSJlrhY',
+       'Content-Disposition: form-data; name="cont"',
+       '',
+       'some random content',
+       '------WebKitFormBoundaryTB2MiQ36fnSJlrhY',
+       'Content-Disposition: form-data; name="pass"',
+       '',
+       'some random pass',
+       '------WebKitFormBoundaryTB2MiQ36fnSJlrhY',
+       'Content-Disposition: form-data; name=bit',
+       '',
+       '2',
+       '------WebKitFormBoundaryTB2MiQ36fnSJlrhY--'
+      ].join('\r\n')
+    ],
+    boundary: '----WebKitFormBoundaryTB2MiQ36fnSJlrhY',
+    expected: [
+      { type: 'field',
+        name: 'cont',
+        val: 'some random content',
+        info: {
+          nameTruncated: false,
+          valueTruncated: false,
+          encoding: '7bit',
+          mimeType: 'text/plain',
+        },
+      },
+      { type: 'field',
+        name: 'pass',
+        val: 'some random pass',
+        info: {
+          nameTruncated: false,
+          valueTruncated: false,
+          encoding: '7bit',
+          mimeType: 'text/plain',
+        },
+      },
+      { type: 'field',
+        name: 'bit',
+        val: '2',
+        info: {
+          nameTruncated: false,
+          valueTruncated: false,
+          encoding: '7bit',
+          mimeType: 'text/plain',
+        },
+      },
+    ],
+    what: 'Fields only'
+  },
+  { source: [
+      ''
+    ],
+    boundary: '----WebKitFormBoundaryTB2MiQ36fnSJlrhY',
+    expected: [
+      { error: 'Unexpected end of form' },
+    ],
+    what: 'No fields and no files'
+  },
+  { source: [
+      ['-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; name="file_name_0"',
+       '',
+       'super alpha file',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + 'name="upload_file_0"; filename="1k_a.dat"',
+       'Content-Type: application/octet-stream',
+       '',
+       'ABCDEFGHIJKLMNOPQRSTUVWXYZ',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k--'
+      ].join('\r\n')
+    ],
+    boundary: '---------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+    limits: {
+      fileSize: 13,
+      fieldSize: 5
+    },
+    expected: [
+      { type: 'field',
+        name: 'file_name_0',
+        val: 'super',
+        info: {
+          nameTruncated: false,
+          valueTruncated: true,
+          encoding: '7bit',
+          mimeType: 'text/plain',
+        },
+      },
+      { type: 'file',
+        name: 'upload_file_0',
+        data: Buffer.from('ABCDEFGHIJKLM'),
+        info: {
+          filename: '1k_a.dat',
+          encoding: '7bit',
+          mimeType: 'application/octet-stream',
+        },
+        limited: true,
+      },
+    ],
+    what: 'Fields and files (limits)'
+  },
+  { source: [
+      ['-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; name="file_name_0"',
+       '',
+       'super alpha file',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + 'name="upload_file_0"; filename="1k_a.dat"',
+       'Content-Type: application/octet-stream',
+       '',
+       'ABCDEFGHIJKLMNOPQRSTUVWXYZ',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k--'
+      ].join('\r\n')
+    ],
+    boundary: '---------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+    limits: {
+      files: 0
+    },
+    expected: [
+      { type: 'field',
+        name: 'file_name_0',
+        val: 'super alpha file',
+        info: {
+          nameTruncated: false,
+          valueTruncated: false,
+          encoding: '7bit',
+          mimeType: 'text/plain',
+        },
+      },
+      'filesLimit',
+    ],
+    what: 'Fields and files (limits: 0 files)'
+  },
+  { source: [
+      ['-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; name="file_name_0"',
+       '',
+       'super alpha file',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; name="file_name_1"',
+       '',
+       'super beta file',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + 'name="upload_file_0"; filename="1k_a.dat"',
+       'Content-Type: application/octet-stream',
+       '',
+       'A'.repeat(1023),
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + 'name="upload_file_1"; filename="1k_b.dat"',
+       'Content-Type: application/octet-stream',
+       '',
+       'B'.repeat(1023),
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k--'
+      ].join('\r\n')
+    ],
+    boundary: '---------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+    expected: [
+      { type: 'field',
+        name: 'file_name_0',
+        val: 'super alpha file',
+        info: {
+          nameTruncated: false,
+          valueTruncated: false,
+          encoding: '7bit',
+          mimeType: 'text/plain',
+        },
+      },
+      { type: 'field',
+        name: 'file_name_1',
+        val: 'super beta file',
+        info: {
+          nameTruncated: false,
+          valueTruncated: false,
+          encoding: '7bit',
+          mimeType: 'text/plain',
+        },
+      },
+    ],
+    events: ['field'],
+    what: 'Fields and (ignored) files'
+  },
+  { source: [
+      ['-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + 'name="upload_file_0"; filename="/tmp/1k_a.dat"',
+       'Content-Type: application/octet-stream',
+       '',
+       'ABCDEFGHIJKLMNOPQRSTUVWXYZ',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + 'name="upload_file_1"; filename="C:\\files\\1k_b.dat"',
+       'Content-Type: application/octet-stream',
+       '',
+       'ABCDEFGHIJKLMNOPQRSTUVWXYZ',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + 'name="upload_file_2"; filename="relative/1k_c.dat"',
+       'Content-Type: application/octet-stream',
+       '',
+       'ABCDEFGHIJKLMNOPQRSTUVWXYZ',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k--'
+      ].join('\r\n')
+    ],
+    boundary: '---------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+    expected: [
+      { type: 'file',
+        name: 'upload_file_0',
+        data: Buffer.from('ABCDEFGHIJKLMNOPQRSTUVWXYZ'),
+        info: {
+          filename: '1k_a.dat',
+          encoding: '7bit',
+          mimeType: 'application/octet-stream',
+        },
+        limited: false,
+      },
+      { type: 'file',
+        name: 'upload_file_1',
+        data: Buffer.from('ABCDEFGHIJKLMNOPQRSTUVWXYZ'),
+        info: {
+          filename: '1k_b.dat',
+          encoding: '7bit',
+          mimeType: 'application/octet-stream',
+        },
+        limited: false,
+      },
+      { type: 'file',
+        name: 'upload_file_2',
+        data: Buffer.from('ABCDEFGHIJKLMNOPQRSTUVWXYZ'),
+        info: {
+          filename: '1k_c.dat',
+          encoding: '7bit',
+          mimeType: 'application/octet-stream',
+        },
+        limited: false,
+      },
+    ],
+    what: 'Files with filenames containing paths'
+  },
+  { source: [
+      ['-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + 'name="upload_file_0"; filename="/absolute/1k_a.dat"',
+       'Content-Type: application/octet-stream',
+       '',
+       'ABCDEFGHIJKLMNOPQRSTUVWXYZ',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + 'name="upload_file_1"; filename="C:\\absolute\\1k_b.dat"',
+       'Content-Type: application/octet-stream',
+       '',
+       'ABCDEFGHIJKLMNOPQRSTUVWXYZ',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + 'name="upload_file_2"; filename="relative/1k_c.dat"',
+       'Content-Type: application/octet-stream',
+       '',
+       'ABCDEFGHIJKLMNOPQRSTUVWXYZ',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k--'
+      ].join('\r\n')
+    ],
+    boundary: '---------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+    preservePath: true,
+    expected: [
+      { type: 'file',
+        name: 'upload_file_0',
+        data: Buffer.from('ABCDEFGHIJKLMNOPQRSTUVWXYZ'),
+        info: {
+          filename: '/absolute/1k_a.dat',
+          encoding: '7bit',
+          mimeType: 'application/octet-stream',
+        },
+        limited: false,
+      },
+      { type: 'file',
+        name: 'upload_file_1',
+        data: Buffer.from('ABCDEFGHIJKLMNOPQRSTUVWXYZ'),
+        info: {
+          filename: 'C:\\absolute\\1k_b.dat',
+          encoding: '7bit',
+          mimeType: 'application/octet-stream',
+        },
+        limited: false,
+      },
+      { type: 'file',
+        name: 'upload_file_2',
+        data: Buffer.from('ABCDEFGHIJKLMNOPQRSTUVWXYZ'),
+        info: {
+          filename: 'relative/1k_c.dat',
+          encoding: '7bit',
+          mimeType: 'application/octet-stream',
+        },
+        limited: false,
+      },
+    ],
+    what: 'Paths to be preserved through the preservePath option'
+  },
+  { source: [
+      ['------WebKitFormBoundaryTB2MiQ36fnSJlrhY',
+       'Content-Disposition: form-data; name="cont"',
+       'Content-Type: ',
+       '',
+       'some random content',
+       '------WebKitFormBoundaryTB2MiQ36fnSJlrhY',
+       'Content-Disposition: ',
+       '',
+       'some random pass',
+       '------WebKitFormBoundaryTB2MiQ36fnSJlrhY--'
+      ].join('\r\n')
+    ],
+    boundary: '----WebKitFormBoundaryTB2MiQ36fnSJlrhY',
+    expected: [
+      { type: 'field',
+        name: 'cont',
+        val: 'some random content',
+        info: {
+          nameTruncated: false,
+          valueTruncated: false,
+          encoding: '7bit',
+          mimeType: 'text/plain',
+        },
+      },
+    ],
+    what: 'Empty content-type and empty content-disposition'
+  },
+  { source: [
+      ['-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + 'name="file"; filename*=utf-8\'\'n%C3%A4me.txt',
+       'Content-Type: application/octet-stream',
+       '',
+       'ABCDEFGHIJKLMNOPQRSTUVWXYZ',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k--'
+      ].join('\r\n')
+    ],
+    boundary: '---------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+    expected: [
+      { type: 'file',
+        name: 'file',
+        data: Buffer.from('ABCDEFGHIJKLMNOPQRSTUVWXYZ'),
+        info: {
+          filename: 'näme.txt',
+          encoding: '7bit',
+          mimeType: 'application/octet-stream',
+        },
+        limited: false,
+      },
+    ],
+    what: 'Unicode filenames'
+  },
+  { source: [
+      ['--asdasdasdasd\r\n',
+       'Content-Type: text/plain\r\n',
+       'Content-Disposition: form-data; name="foo"\r\n',
+       '\r\n',
+       'asd\r\n',
+       '--asdasdasdasd--'
+      ].join(':)')
+    ],
+    boundary: 'asdasdasdasd',
+    expected: [
+      { error: 'Malformed part header' },
+      { error: 'Unexpected end of form' },
+    ],
+    what: 'Stopped mid-header'
+  },
+  { source: [
+      ['------WebKitFormBoundaryTB2MiQ36fnSJlrhY',
+       'Content-Disposition: form-data; name="cont"',
+       'Content-Type: application/json',
+       '',
+       '{}',
+       '------WebKitFormBoundaryTB2MiQ36fnSJlrhY--',
+      ].join('\r\n')
+    ],
+    boundary: '----WebKitFormBoundaryTB2MiQ36fnSJlrhY',
+    expected: [
+      { type: 'field',
+        name: 'cont',
+        val: '{}',
+        info: {
+          nameTruncated: false,
+          valueTruncated: false,
+          encoding: '7bit',
+          mimeType: 'application/json',
+        },
+      },
+    ],
+    what: 'content-type for fields'
+  },
+  { source: [
+      '------WebKitFormBoundaryTB2MiQ36fnSJlrhY--',
+    ],
+    boundary: '----WebKitFormBoundaryTB2MiQ36fnSJlrhY',
+    expected: [],
+    what: 'empty form'
+  },
+  { source: [
+      ['-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + 'name=upload_file_0; filename="1k_a.dat"',
+       'Content-Type: application/octet-stream',
+       'Content-Transfer-Encoding: binary',
+       '',
+       '',
+      ].join('\r\n')
+    ],
+    boundary: '---------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+    expected: [
+      { type: 'file',
+        name: 'upload_file_0',
+        data: Buffer.alloc(0),
+        info: {
+          filename: '1k_a.dat',
+          encoding: 'binary',
+          mimeType: 'application/octet-stream',
+        },
+        limited: false,
+        err: 'Unexpected end of form',
+      },
+      { error: 'Unexpected end of form' },
+    ],
+    what: 'Stopped mid-file #1'
+  },
+  { source: [
+      ['-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + 'name=upload_file_0; filename="1k_a.dat"',
+       'Content-Type: application/octet-stream',
+       '',
+       'a',
+      ].join('\r\n')
+    ],
+    boundary: '---------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+    expected: [
+      { type: 'file',
+        name: 'upload_file_0',
+        data: Buffer.from('a'),
+        info: {
+          filename: '1k_a.dat',
+          encoding: '7bit',
+          mimeType: 'application/octet-stream',
+        },
+        limited: false,
+        err: 'Unexpected end of form',
+      },
+      { error: 'Unexpected end of form' },
+    ],
+    what: 'Stopped mid-file #2'
+  },
+  { source: [
+      ['-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + 'name="upload_file_0"; filename="notes.txt"',
+       'Content-Type: text/plain; charset=utf8',
+       '',
+       'a',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k--',
+      ].join('\r\n')
+    ],
+    boundary: '---------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+    expected: [
+      { type: 'file',
+        name: 'upload_file_0',
+        data: Buffer.from('a'),
+        info: {
+          filename: 'notes.txt',
+          encoding: '7bit',
+          mimeType: 'text/plain',
+        },
+        limited: false,
+      },
+    ],
+    what: 'Text file with charset'
+  },
+  { source: [
+      ['-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + 'name="upload_file_0"; filename="notes.txt"',
+       'Content-Type: ',
+       ' text/plain; charset=utf8',
+       '',
+       'a',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k--',
+      ].join('\r\n')
+    ],
+    boundary: '---------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+    expected: [
+      { type: 'file',
+        name: 'upload_file_0',
+        data: Buffer.from('a'),
+        info: {
+          filename: 'notes.txt',
+          encoding: '7bit',
+          mimeType: 'text/plain',
+        },
+        limited: false,
+      },
+    ],
+    what: 'Folded header value'
+  },
+  { source: [
+      ['-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Type: text/plain; charset=utf8',
+       '',
+       'a',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k--',
+      ].join('\r\n')
+    ],
+    boundary: '---------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+    expected: [],
+    what: 'No Content-Disposition'
+  },
+  { source: [
+      ['-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; name="file_name_0"',
+       '',
+       'a'.repeat(64 * 1024),
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + 'name="upload_file_0"; filename="notes.txt"',
+       'Content-Type: ',
+       ' text/plain; charset=utf8',
+       '',
+       'bc',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k--',
+      ].join('\r\n')
+    ],
+    boundary: '---------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+    limits: {
+      fieldSize: Infinity,
+    },
+    expected: [
+      { type: 'file',
+        name: 'upload_file_0',
+        data: Buffer.from('bc'),
+        info: {
+          filename: 'notes.txt',
+          encoding: '7bit',
+          mimeType: 'text/plain',
+        },
+        limited: false,
+      },
+    ],
+    events: [ 'file' ],
+    what: 'Skip field parts if no listener'
+  },
+  { source: [
+      ['-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; name="file_name_0"',
+       '',
+       'a',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + 'name="upload_file_0"; filename="notes.txt"',
+       'Content-Type: ',
+       ' text/plain; charset=utf8',
+       '',
+       'bc',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k--',
+      ].join('\r\n')
+    ],
+    boundary: '---------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+    limits: {
+      parts: 1,
+    },
+    expected: [
+      { type: 'field',
+        name: 'file_name_0',
+        val: 'a',
+        info: {
+          nameTruncated: false,
+          valueTruncated: false,
+          encoding: '7bit',
+          mimeType: 'text/plain',
+        },
+      },
+      'partsLimit',
+    ],
+    what: 'Parts limit'
+  },
+  { source: [
+      ['-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; name="file_name_0"',
+       '',
+       'a',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; name="file_name_1"',
+       '',
+       'b',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k--',
+      ].join('\r\n')
+    ],
+    boundary: '---------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+    limits: {
+      fields: 1,
+    },
+    expected: [
+      { type: 'field',
+        name: 'file_name_0',
+        val: 'a',
+        info: {
+          nameTruncated: false,
+          valueTruncated: false,
+          encoding: '7bit',
+          mimeType: 'text/plain',
+        },
+      },
+      'fieldsLimit',
+    ],
+    what: 'Fields limit'
+  },
+  { source: [
+      ['-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + 'name="upload_file_0"; filename="notes.txt"',
+       'Content-Type: text/plain; charset=utf8',
+       '',
+       'ab',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + 'name="upload_file_1"; filename="notes2.txt"',
+       'Content-Type: text/plain; charset=utf8',
+       '',
+       'cd',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k--',
+      ].join('\r\n')
+    ],
+    boundary: '---------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+    limits: {
+      files: 1,
+    },
+    expected: [
+      { type: 'file',
+        name: 'upload_file_0',
+        data: Buffer.from('ab'),
+        info: {
+          filename: 'notes.txt',
+          encoding: '7bit',
+          mimeType: 'text/plain',
+        },
+        limited: false,
+      },
+      'filesLimit',
+    ],
+    what: 'Files limit'
+  },
+  { source: [
+      ['-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + `name="upload_file_0"; filename="${'a'.repeat(64 * 1024)}.txt"`,
+       'Content-Type: text/plain; charset=utf8',
+       '',
+       'ab',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + 'name="upload_file_1"; filename="notes2.txt"',
+       'Content-Type: text/plain; charset=utf8',
+       '',
+       'cd',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k--',
+      ].join('\r\n')
+    ],
+    boundary: '---------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+    expected: [
+      { error: 'Malformed part header' },
+      { type: 'file',
+        name: 'upload_file_1',
+        data: Buffer.from('cd'),
+        info: {
+          filename: 'notes2.txt',
+          encoding: '7bit',
+          mimeType: 'text/plain',
+        },
+        limited: false,
+      },
+    ],
+    what: 'Oversized part header'
+  },
+  { source: [
+      ['-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + 'name="upload_file_0"; filename="notes.txt"',
+       'Content-Type: text/plain; charset=utf8',
+       '',
+       'a'.repeat(31) + '\r',
+      ].join('\r\n'),
+      'b'.repeat(40),
+      '\r\n-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k--',
+    ],
+    boundary: '---------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+    fileHwm: 32,
+    expected: [
+      { type: 'file',
+        name: 'upload_file_0',
+        data: Buffer.from('a'.repeat(31) + '\r' + 'b'.repeat(40)),
+        info: {
+          filename: 'notes.txt',
+          encoding: '7bit',
+          mimeType: 'text/plain',
+        },
+        limited: false,
+      },
+    ],
+    what: 'Lookbehind data should not stall file streams'
+  },
+  { source: [
+      ['-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + `name="upload_file_0"; filename="${'a'.repeat(8 * 1024)}.txt"`,
+       'Content-Type: text/plain; charset=utf8',
+       '',
+       'ab',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + `name="upload_file_1"; filename="${'b'.repeat(8 * 1024)}.txt"`,
+       'Content-Type: text/plain; charset=utf8',
+       '',
+       'cd',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + `name="upload_file_2"; filename="${'c'.repeat(8 * 1024)}.txt"`,
+       'Content-Type: text/plain; charset=utf8',
+       '',
+       'ef',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k--',
+      ].join('\r\n')
+    ],
+    boundary: '---------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+    expected: [
+      { type: 'file',
+        name: 'upload_file_0',
+        data: Buffer.from('ab'),
+        info: {
+          filename: `${'a'.repeat(8 * 1024)}.txt`,
+          encoding: '7bit',
+          mimeType: 'text/plain',
+        },
+        limited: false,
+      },
+      { type: 'file',
+        name: 'upload_file_1',
+        data: Buffer.from('cd'),
+        info: {
+          filename: `${'b'.repeat(8 * 1024)}.txt`,
+          encoding: '7bit',
+          mimeType: 'text/plain',
+        },
+        limited: false,
+      },
+      { type: 'file',
+        name: 'upload_file_2',
+        data: Buffer.from('ef'),
+        info: {
+          filename: `${'c'.repeat(8 * 1024)}.txt`,
+          encoding: '7bit',
+          mimeType: 'text/plain',
+        },
+        limited: false,
+      },
+    ],
+    what: 'Header size limit should be per part'
+  },
+  { source: [
+      '\r\n--d1bf46b3-aa33-4061-b28d-6c5ced8b08ee\r\n',
+      'Content-Type: application/gzip\r\n'
+        + 'Content-Encoding: gzip\r\n'
+        + 'Content-Disposition: form-data; name=batch-1; filename=batch-1'
+        + '\r\n\r\n',
+      '\r\n--d1bf46b3-aa33-4061-b28d-6c5ced8b08ee--',
+    ],
+    boundary: 'd1bf46b3-aa33-4061-b28d-6c5ced8b08ee',
+    expected: [
+      { type: 'file',
+        name: 'batch-1',
+        data: Buffer.alloc(0),
+        info: {
+          filename: 'batch-1',
+          encoding: '7bit',
+          mimeType: 'application/gzip',
+        },
+        limited: false,
+      },
+    ],
+    what: 'Empty part'
+  },
+];
+
+for (const test of tests) {
+  active.set(test, 1);
+
+  const { what, boundary, events, limits, preservePath, fileHwm } = test;
+  const bb = busboy({
+    fileHwm,
+    limits,
+    preservePath,
+    headers: {
+      'content-type': `multipart/form-data; boundary=${boundary}`,
+    }
+  });
+  const results = [];
+
+  if (events === undefined || events.includes('field')) {
+    bb.on('field', (name, val, info) => {
+      results.push({ type: 'field', name, val, info });
+    });
+  }
+
+  if (events === undefined || events.includes('file')) {
+    bb.on('file', (name, stream, info) => {
+      const data = [];
+      let nb = 0;
+      const file = {
+        type: 'file',
+        name,
+        data: null,
+        info,
+        limited: false,
+      };
+      results.push(file);
+      stream.on('data', (d) => {
+        data.push(d);
+        nb += d.length;
+      }).on('limit', () => {
+        file.limited = true;
+      }).on('close', () => {
+        file.data = Buffer.concat(data, nb);
+        assert.strictEqual(stream.truncated, file.limited);
+      }).once('error', (err) => {
+        file.err = err.message;
+      });
+    });
+  }
+
+  bb.on('error', (err) => {
+    results.push({ error: err.message });
+  });
+
+  bb.on('partsLimit', () => {
+    results.push('partsLimit');
+  });
+
+  bb.on('filesLimit', () => {
+    results.push('filesLimit');
+  });
+
+  bb.on('fieldsLimit', () => {
+    results.push('fieldsLimit');
+  });
+
+  bb.on('close', () => {
+    active.delete(test);
+
+    assert.deepStrictEqual(
+      results,
+      test.expected,
+      `[${what}] Results mismatch.\n`
+        + `Parsed: ${inspect(results)}\n`
+        + `Expected: ${inspect(test.expected)}`
+    );
+  });
+
+  for (const src of test.source) {
+    const buf = (typeof src === 'string' ? Buffer.from(src, 'utf8') : src);
+    bb.write(buf);
+  }
+  bb.end();
+}
+
+// Byte-by-byte versions
+for (let test of tests) {
+  test = { ...test };
+  test.what += ' (byte-by-byte)';
+  active.set(test, 1);
+
+  const { what, boundary, events, limits, preservePath, fileHwm } = test;
+  const bb = busboy({
+    fileHwm,
+    limits,
+    preservePath,
+    headers: {
+      'content-type': `multipart/form-data; boundary=${boundary}`,
+    }
+  });
+  const results = [];
+
+  if (events === undefined || events.includes('field')) {
+    bb.on('field', (name, val, info) => {
+      results.push({ type: 'field', name, val, info });
+    });
+  }
+
+  if (events === undefined || events.includes('file')) {
+    bb.on('file', (name, stream, info) => {
+      const data = [];
+      let nb = 0;
+      const file = {
+        type: 'file',
+        name,
+        data: null,
+        info,
+        limited: false,
+      };
+      results.push(file);
+      stream.on('data', (d) => {
+        data.push(d);
+        nb += d.length;
+      }).on('limit', () => {
+        file.limited = true;
+      }).on('close', () => {
+        file.data = Buffer.concat(data, nb);
+        assert.strictEqual(stream.truncated, file.limited);
+      }).once('error', (err) => {
+        file.err = err.message;
+      });
+    });
+  }
+
+  bb.on('error', (err) => {
+    results.push({ error: err.message });
+  });
+
+  bb.on('partsLimit', () => {
+    results.push('partsLimit');
+  });
+
+  bb.on('filesLimit', () => {
+    results.push('filesLimit');
+  });
+
+  bb.on('fieldsLimit', () => {
+    results.push('fieldsLimit');
+  });
+
+  bb.on('close', () => {
+    active.delete(test);
+
+    assert.deepStrictEqual(
+      results,
+      test.expected,
+      `[${what}] Results mismatch.\n`
+        + `Parsed: ${inspect(results)}\n`
+        + `Expected: ${inspect(test.expected)}`
+    );
+  });
+
+  for (const src of test.source) {
+    const buf = (typeof src === 'string' ? Buffer.from(src, 'utf8') : src);
+    for (let i = 0; i < buf.length; ++i)
+      bb.write(buf.slice(i, i + 1));
+  }
+  bb.end();
+}
+
+{
+  let exception = false;
+  process.once('uncaughtException', (ex) => {
+    exception = true;
+    throw ex;
+  });
+  process.on('exit', () => {
+    if (exception || active.size === 0)
+      return;
+    process.exitCode = 1;
+    console.error('==========================');
+    console.error(`${active.size} test(s) did not finish:`);
+    console.error('==========================');
+    console.error(Array.from(active.keys()).map((v) => v.what).join('\n'));
+  });
+}
diff --git a/backend/node_modules/busboy/test/test-types-urlencoded.js b/backend/node_modules/busboy/test/test-types-urlencoded.js
new file mode 100644
index 0000000..c35962b
--- /dev/null
+++ b/backend/node_modules/busboy/test/test-types-urlencoded.js
@@ -0,0 +1,488 @@
+'use strict';
+
+const assert = require('assert');
+const { transcode } = require('buffer');
+const { inspect } = require('util');
+
+const busboy = require('..');
+
+const active = new Map();
+
+const tests = [
+  { source: ['foo'],
+    expected: [
+      ['foo',
+       '',
+       { nameTruncated: false,
+         valueTruncated: false,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+    ],
+    what: 'Unassigned value'
+  },
+  { source: ['foo=bar'],
+    expected: [
+      ['foo',
+       'bar',
+       { nameTruncated: false,
+         valueTruncated: false,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+    ],
+    what: 'Assigned value'
+  },
+  { source: ['foo&bar=baz'],
+    expected: [
+      ['foo',
+       '',
+       { nameTruncated: false,
+         valueTruncated: false,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+      ['bar',
+       'baz',
+       { nameTruncated: false,
+         valueTruncated: false,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+    ],
+    what: 'Unassigned and assigned value'
+  },
+  { source: ['foo=bar&baz'],
+    expected: [
+      ['foo',
+       'bar',
+       { nameTruncated: false,
+         valueTruncated: false,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+      ['baz',
+       '',
+       { nameTruncated: false,
+         valueTruncated: false,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+    ],
+    what: 'Assigned and unassigned value'
+  },
+  { source: ['foo=bar&baz=bla'],
+    expected: [
+      ['foo',
+       'bar',
+       { nameTruncated: false,
+         valueTruncated: false,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+      ['baz',
+       'bla',
+       { nameTruncated: false,
+         valueTruncated: false,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+    ],
+    what: 'Two assigned values'
+  },
+  { source: ['foo&bar'],
+    expected: [
+      ['foo',
+       '',
+       { nameTruncated: false,
+         valueTruncated: false,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+      ['bar',
+       '',
+       { nameTruncated: false,
+         valueTruncated: false,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+    ],
+    what: 'Two unassigned values'
+  },
+  { source: ['foo&bar&'],
+    expected: [
+      ['foo',
+       '',
+       { nameTruncated: false,
+         valueTruncated: false,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+      ['bar',
+       '',
+       { nameTruncated: false,
+         valueTruncated: false,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+    ],
+    what: 'Two unassigned values and ampersand'
+  },
+  { source: ['foo+1=bar+baz%2Bquux'],
+    expected: [
+      ['foo 1',
+       'bar baz+quux',
+       { nameTruncated: false,
+         valueTruncated: false,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+    ],
+    what: 'Assigned key and value with (plus) space'
+  },
+  { source: ['foo=bar%20baz%21'],
+    expected: [
+      ['foo',
+       'bar baz!',
+       { nameTruncated: false,
+         valueTruncated: false,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+    ],
+    what: 'Assigned value with encoded bytes'
+  },
+  { source: ['foo%20bar=baz%20bla%21'],
+    expected: [
+      ['foo bar',
+       'baz bla!',
+       { nameTruncated: false,
+         valueTruncated: false,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+    ],
+    what: 'Assigned value with encoded bytes #2'
+  },
+  { source: ['foo=bar%20baz%21&num=1000'],
+    expected: [
+      ['foo',
+       'bar baz!',
+       { nameTruncated: false,
+         valueTruncated: false,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+      ['num',
+       '1000',
+       { nameTruncated: false,
+         valueTruncated: false,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+    ],
+    what: 'Two assigned values, one with encoded bytes'
+  },
+  { source: [
+      Array.from(transcode(Buffer.from('foo'), 'utf8', 'utf16le')).map(
+        (n) => `%${n.toString(16).padStart(2, '0')}`
+      ).join(''),
+      '=',
+      Array.from(transcode(Buffer.from('😀!'), 'utf8', 'utf16le')).map(
+        (n) => `%${n.toString(16).padStart(2, '0')}`
+      ).join(''),
+    ],
+    expected: [
+      ['foo',
+       '😀!',
+       { nameTruncated: false,
+         valueTruncated: false,
+         encoding: 'UTF-16LE',
+         mimeType: 'text/plain' },
+      ],
+    ],
+    charset: 'UTF-16LE',
+    what: 'Encoded value with multi-byte charset'
+  },
+  { source: [
+      'foo=<',
+      Array.from(transcode(Buffer.from('©:^þ'), 'utf8', 'latin1')).map(
+        (n) => `%${n.toString(16).padStart(2, '0')}`
+      ).join(''),
+    ],
+    expected: [
+      ['foo',
+       '<©:^þ',
+       { nameTruncated: false,
+         valueTruncated: false,
+         encoding: 'ISO-8859-1',
+         mimeType: 'text/plain' },
+      ],
+    ],
+    charset: 'ISO-8859-1',
+    what: 'Encoded value with single-byte, ASCII-compatible, non-UTF8 charset'
+  },
+  { source: ['foo=bar&baz=bla'],
+    expected: [],
+    what: 'Limits: zero fields',
+    limits: { fields: 0 }
+  },
+  { source: ['foo=bar&baz=bla'],
+    expected: [
+      ['foo',
+       'bar',
+       { nameTruncated: false,
+         valueTruncated: false,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+    ],
+    what: 'Limits: one field',
+    limits: { fields: 1 }
+  },
+  { source: ['foo=bar&baz=bla'],
+    expected: [
+      ['foo',
+       'bar',
+       { nameTruncated: false,
+         valueTruncated: false,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+      ['baz',
+       'bla',
+       { nameTruncated: false,
+         valueTruncated: false,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+    ],
+    what: 'Limits: field part lengths match limits',
+    limits: { fieldNameSize: 3, fieldSize: 3 }
+  },
+  { source: ['foo=bar&baz=bla'],
+    expected: [
+      ['fo',
+       'bar',
+       { nameTruncated: true,
+         valueTruncated: false,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+      ['ba',
+       'bla',
+       { nameTruncated: true,
+         valueTruncated: false,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+    ],
+    what: 'Limits: truncated field name',
+    limits: { fieldNameSize: 2 }
+  },
+  { source: ['foo=bar&baz=bla'],
+    expected: [
+      ['foo',
+       'ba',
+       { nameTruncated: false,
+         valueTruncated: true,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+      ['baz',
+       'bl',
+       { nameTruncated: false,
+         valueTruncated: true,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+    ],
+    what: 'Limits: truncated field value',
+    limits: { fieldSize: 2 }
+  },
+  { source: ['foo=bar&baz=bla'],
+    expected: [
+      ['fo',
+       'ba',
+       { nameTruncated: true,
+         valueTruncated: true,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+      ['ba',
+       'bl',
+       { nameTruncated: true,
+         valueTruncated: true,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+    ],
+    what: 'Limits: truncated field name and value',
+    limits: { fieldNameSize: 2, fieldSize: 2 }
+  },
+  { source: ['foo=bar&baz=bla'],
+    expected: [
+      ['fo',
+       '',
+       { nameTruncated: true,
+         valueTruncated: true,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+      ['ba',
+       '',
+       { nameTruncated: true,
+         valueTruncated: true,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+    ],
+    what: 'Limits: truncated field name and zero value limit',
+    limits: { fieldNameSize: 2, fieldSize: 0 }
+  },
+  { source: ['foo=bar&baz=bla'],
+    expected: [
+      ['',
+       '',
+       { nameTruncated: true,
+         valueTruncated: true,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+      ['',
+       '',
+       { nameTruncated: true,
+         valueTruncated: true,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+    ],
+    what: 'Limits: truncated zero field name and zero value limit',
+    limits: { fieldNameSize: 0, fieldSize: 0 }
+  },
+  { source: ['&'],
+    expected: [],
+    what: 'Ampersand'
+  },
+  { source: ['&&&&&'],
+    expected: [],
+    what: 'Many ampersands'
+  },
+  { source: ['='],
+    expected: [
+      ['',
+       '',
+       { nameTruncated: false,
+         valueTruncated: false,
+         encoding: 'utf-8',
+         mimeType: 'text/plain' },
+      ],
+    ],
+    what: 'Assigned value, empty name and value'
+  },
+  { source: [''],
+    expected: [],
+    what: 'Nothing'
+  },
+];
+
+for (const test of tests) {
+  active.set(test, 1);
+
+  const { what } = test;
+  const charset = test.charset || 'utf-8';
+  const bb = busboy({
+    limits: test.limits,
+    headers: {
+      'content-type': `application/x-www-form-urlencoded; charset=${charset}`,
+    },
+  });
+  const results = [];
+
+  bb.on('field', (key, val, info) => {
+    results.push([key, val, info]);
+  });
+
+  bb.on('file', () => {
+    throw new Error(`[${what}] Unexpected file`);
+  });
+
+  bb.on('close', () => {
+    active.delete(test);
+
+    assert.deepStrictEqual(
+      results,
+      test.expected,
+      `[${what}] Results mismatch.\n`
+        + `Parsed: ${inspect(results)}\n`
+        + `Expected: ${inspect(test.expected)}`
+    );
+  });
+
+  for (const src of test.source) {
+    const buf = (typeof src === 'string' ? Buffer.from(src, 'utf8') : src);
+    bb.write(buf);
+  }
+  bb.end();
+}
+
+// Byte-by-byte versions
+for (let test of tests) {
+  test = { ...test };
+  test.what += ' (byte-by-byte)';
+  active.set(test, 1);
+
+  const { what } = test;
+  const charset = test.charset || 'utf-8';
+  const bb = busboy({
+    limits: test.limits,
+    headers: {
+      'content-type': `application/x-www-form-urlencoded; charset="${charset}"`,
+    },
+  });
+  const results = [];
+
+  bb.on('field', (key, val, info) => {
+    results.push([key, val, info]);
+  });
+
+  bb.on('file', () => {
+    throw new Error(`[${what}] Unexpected file`);
+  });
+
+  bb.on('close', () => {
+    active.delete(test);
+
+    assert.deepStrictEqual(
+      results,
+      test.expected,
+      `[${what}] Results mismatch.\n`
+        + `Parsed: ${inspect(results)}\n`
+        + `Expected: ${inspect(test.expected)}`
+    );
+  });
+
+  for (const src of test.source) {
+    const buf = (typeof src === 'string' ? Buffer.from(src, 'utf8') : src);
+    for (let i = 0; i < buf.length; ++i)
+      bb.write(buf.slice(i, i + 1));
+  }
+  bb.end();
+}
+
+{
+  let exception = false;
+  process.once('uncaughtException', (ex) => {
+    exception = true;
+    throw ex;
+  });
+  process.on('exit', () => {
+    if (exception || active.size === 0)
+      return;
+    process.exitCode = 1;
+    console.error('==========================');
+    console.error(`${active.size} test(s) did not finish:`);
+    console.error('==========================');
+    console.error(Array.from(active.keys()).map((v) => v.what).join('\n'));
+  });
+}
diff --git a/backend/node_modules/busboy/test/test.js b/backend/node_modules/busboy/test/test.js
new file mode 100644
index 0000000..d0380f2
--- /dev/null
+++ b/backend/node_modules/busboy/test/test.js
@@ -0,0 +1,20 @@
+'use strict';
+
+const { spawnSync } = require('child_process');
+const { readdirSync } = require('fs');
+const { join } = require('path');
+
+const files = readdirSync(__dirname).sort();
+for (const filename of files) {
+  if (filename.startsWith('test-')) {
+    const path = join(__dirname, filename);
+    console.log(`> Running ${filename} ...`);
+    const result = spawnSync(`${process.argv0} ${path}`, {
+      shell: true,
+      stdio: 'inherit',
+      windowsHide: true
+    });
+    if (result.status !== 0)
+      process.exitCode = 1;
+  }
+}
diff --git a/backend/node_modules/bytes/History.md b/backend/node_modules/bytes/History.md
new file mode 100644
index 0000000..d60ce0e
--- /dev/null
+++ b/backend/node_modules/bytes/History.md
@@ -0,0 +1,97 @@
+3.1.2 / 2022-01-27
+==================
+
+  * Fix return value for un-parsable strings
+
+3.1.1 / 2021-11-15
+==================
+
+  * Fix "thousandsSeparator" incorrecting formatting fractional part
+
+3.1.0 / 2019-01-22
+==================
+
+  * Add petabyte (`pb`) support
+
+3.0.0 / 2017-08-31
+==================
+
+  * Change "kB" to "KB" in format output
+  * Remove support for Node.js 0.6
+  * Remove support for ComponentJS
+
+2.5.0 / 2017-03-24
+==================
+
+  * Add option "unit"
+
+2.4.0 / 2016-06-01
+==================
+
+  * Add option "unitSeparator"
+
+2.3.0 / 2016-02-15
+==================
+
+  * Drop partial bytes on all parsed units
+  * Fix non-finite numbers to `.format` to return `null`
+  * Fix parsing byte string that looks like hex
+  * perf: hoist regular expressions
+
+2.2.0 / 2015-11-13
+==================
+
+  * add option "decimalPlaces"
+  * add option "fixedDecimals"
+
+2.1.0 / 2015-05-21
+==================
+
+  * add `.format` export
+  * add `.parse` export
+
+2.0.2 / 2015-05-20
+==================
+
+  * remove map recreation
+  * remove unnecessary object construction
+
+2.0.1 / 2015-05-07
+==================
+
+  * fix browserify require
+  * remove node.extend dependency
+
+2.0.0 / 2015-04-12
+==================
+
+  * add option "case"
+  * add option "thousandsSeparator"
+  * return "null" on invalid parse input
+  * support proper round-trip: bytes(bytes(num)) === num
+  * units no longer case sensitive when parsing
+
+1.0.0 / 2014-05-05
+==================
+
+ * add negative support. fixes #6
+
+0.3.0 / 2014-03-19
+==================
+
+ * added terabyte support
+
+0.2.1 / 2013-04-01
+==================
+
+  * add .component
+
+0.2.0 / 2012-10-28
+==================
+
+  * bytes(200).should.eql('200b')
+
+0.1.0 / 2012-07-04
+==================
+
+  * add bytes to string conversion [yields]
diff --git a/backend/node_modules/bytes/LICENSE b/backend/node_modules/bytes/LICENSE
new file mode 100644
index 0000000..63e95a9
--- /dev/null
+++ b/backend/node_modules/bytes/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2012-2014 TJ Holowaychuk <tj@vision-media.ca>
+Copyright (c) 2015 Jed Watson <jed.watson@me.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/bytes/Readme.md b/backend/node_modules/bytes/Readme.md
new file mode 100644
index 0000000..5790e23
--- /dev/null
+++ b/backend/node_modules/bytes/Readme.md
@@ -0,0 +1,152 @@
+# Bytes utility
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Build Status][ci-image]][ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Utility to parse a string bytes (ex: `1TB`) to bytes (`1099511627776`) and vice-versa.
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```bash
+$ npm install bytes
+```
+
+## Usage
+
+```js
+var bytes = require('bytes');
+```
+
+#### bytes(number｜string value, [options]): number｜string｜null
+
+Default export function. Delegates to either `bytes.format` or `bytes.parse` based on the type of `value`.
+
+**Arguments**
+
+| Name    | Type     | Description        |
+|---------|----------|--------------------|
+| value   | `number`｜`string` | Number value to format or string value to parse |
+| options | `Object` | Conversion options for `format` |
+
+**Returns**
+
+| Name    | Type             | Description                                     |
+|---------|------------------|-------------------------------------------------|
+| results | `string`｜`number`｜`null` | Return null upon error. Numeric value in bytes, or string value otherwise. |
+
+**Example**
+
+```js
+bytes(1024);
+// output: '1KB'
+
+bytes('1KB');
+// output: 1024
+```
+
+#### bytes.format(number value, [options]): string｜null
+
+Format the given value in bytes into a string. If the value is negative, it is kept as such. If it is a float, it is
+ rounded.
+
+**Arguments**
+
+| Name    | Type     | Description        |
+|---------|----------|--------------------|
+| value   | `number` | Value in bytes     |
+| options | `Object` | Conversion options |
+
+**Options**
+
+| Property          | Type   | Description                                                                             |
+|-------------------|--------|-----------------------------------------------------------------------------------------|
+| decimalPlaces | `number`｜`null` | Maximum number of decimal places to include in output. Default value to `2`. |
+| fixedDecimals | `boolean`｜`null` | Whether to always display the maximum number of decimal places. Default value to `false` |
+| thousandsSeparator | `string`｜`null` | Example of values: `' '`, `','` and `'.'`... Default value to `''`. |
+| unit | `string`｜`null` | The unit in which the result will be returned (B/KB/MB/GB/TB). Default value to `''` (which means auto detect). |
+| unitSeparator | `string`｜`null` | Separator to use between number and unit. Default value to `''`. |
+
+**Returns**
+
+| Name    | Type             | Description                                     |
+|---------|------------------|-------------------------------------------------|
+| results | `string`｜`null` | Return null upon error. String value otherwise. |
+
+**Example**
+
+```js
+bytes.format(1024);
+// output: '1KB'
+
+bytes.format(1000);
+// output: '1000B'
+
+bytes.format(1000, {thousandsSeparator: ' '});
+// output: '1 000B'
+
+bytes.format(1024 * 1.7, {decimalPlaces: 0});
+// output: '2KB'
+
+bytes.format(1024, {unitSeparator: ' '});
+// output: '1 KB'
+```
+
+#### bytes.parse(string｜number value): number｜null
+
+Parse the string value into an integer in bytes. If no unit is given, or `value`
+is a number, it is assumed the value is in bytes.
+
+Supported units and abbreviations are as follows and are case-insensitive:
+
+  * `b` for bytes
+  * `kb` for kilobytes
+  * `mb` for megabytes
+  * `gb` for gigabytes
+  * `tb` for terabytes
+  * `pb` for petabytes
+
+The units are in powers of two, not ten. This means 1kb = 1024b according to this parser.
+
+**Arguments**
+
+| Name          | Type   | Description        |
+|---------------|--------|--------------------|
+| value   | `string`｜`number` | String to parse, or number in bytes.   |
+
+**Returns**
+
+| Name    | Type        | Description             |
+|---------|-------------|-------------------------|
+| results | `number`｜`null` | Return null upon error. Value in bytes otherwise. |
+
+**Example**
+
+```js
+bytes.parse('1KB');
+// output: 1024
+
+bytes.parse('1024');
+// output: 1024
+
+bytes.parse(1024);
+// output: 1024
+```
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://badgen.net/github/checks/visionmedia/bytes.js/master?label=ci
+[ci-url]: https://github.com/visionmedia/bytes.js/actions?query=workflow%3Aci
+[coveralls-image]: https://badgen.net/coveralls/c/github/visionmedia/bytes.js/master
+[coveralls-url]: https://coveralls.io/r/visionmedia/bytes.js?branch=master
+[downloads-image]: https://badgen.net/npm/dm/bytes
+[downloads-url]: https://npmjs.org/package/bytes
+[npm-image]: https://badgen.net/npm/v/bytes
+[npm-url]: https://npmjs.org/package/bytes
diff --git a/backend/node_modules/bytes/index.js b/backend/node_modules/bytes/index.js
new file mode 100644
index 0000000..6f2d0f8
--- /dev/null
+++ b/backend/node_modules/bytes/index.js
@@ -0,0 +1,170 @@
+/*!
+ * bytes
+ * Copyright(c) 2012-2014 TJ Holowaychuk
+ * Copyright(c) 2015 Jed Watson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = bytes;
+module.exports.format = format;
+module.exports.parse = parse;
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var formatThousandsRegExp = /\B(?=(\d{3})+(?!\d))/g;
+
+var formatDecimalsRegExp = /(?:\.0*|(\.[^0]+)0+)$/;
+
+var map = {
+  b:  1,
+  kb: 1 << 10,
+  mb: 1 << 20,
+  gb: 1 << 30,
+  tb: Math.pow(1024, 4),
+  pb: Math.pow(1024, 5),
+};
+
+var parseRegExp = /^((-|\+)?(\d+(?:\.\d+)?)) *(kb|mb|gb|tb|pb)$/i;
+
+/**
+ * Convert the given value in bytes into a string or parse to string to an integer in bytes.
+ *
+ * @param {string|number} value
+ * @param {{
+ *  case: [string],
+ *  decimalPlaces: [number]
+ *  fixedDecimals: [boolean]
+ *  thousandsSeparator: [string]
+ *  unitSeparator: [string]
+ *  }} [options] bytes options.
+ *
+ * @returns {string|number|null}
+ */
+
+function bytes(value, options) {
+  if (typeof value === 'string') {
+    return parse(value);
+  }
+
+  if (typeof value === 'number') {
+    return format(value, options);
+  }
+
+  return null;
+}
+
+/**
+ * Format the given value in bytes into a string.
+ *
+ * If the value is negative, it is kept as such. If it is a float,
+ * it is rounded.
+ *
+ * @param {number} value
+ * @param {object} [options]
+ * @param {number} [options.decimalPlaces=2]
+ * @param {number} [options.fixedDecimals=false]
+ * @param {string} [options.thousandsSeparator=]
+ * @param {string} [options.unit=]
+ * @param {string} [options.unitSeparator=]
+ *
+ * @returns {string|null}
+ * @public
+ */
+
+function format(value, options) {
+  if (!Number.isFinite(value)) {
+    return null;
+  }
+
+  var mag = Math.abs(value);
+  var thousandsSeparator = (options && options.thousandsSeparator) || '';
+  var unitSeparator = (options && options.unitSeparator) || '';
+  var decimalPlaces = (options && options.decimalPlaces !== undefined) ? options.decimalPlaces : 2;
+  var fixedDecimals = Boolean(options && options.fixedDecimals);
+  var unit = (options && options.unit) || '';
+
+  if (!unit || !map[unit.toLowerCase()]) {
+    if (mag >= map.pb) {
+      unit = 'PB';
+    } else if (mag >= map.tb) {
+      unit = 'TB';
+    } else if (mag >= map.gb) {
+      unit = 'GB';
+    } else if (mag >= map.mb) {
+      unit = 'MB';
+    } else if (mag >= map.kb) {
+      unit = 'KB';
+    } else {
+      unit = 'B';
+    }
+  }
+
+  var val = value / map[unit.toLowerCase()];
+  var str = val.toFixed(decimalPlaces);
+
+  if (!fixedDecimals) {
+    str = str.replace(formatDecimalsRegExp, '$1');
+  }
+
+  if (thousandsSeparator) {
+    str = str.split('.').map(function (s, i) {
+      return i === 0
+        ? s.replace(formatThousandsRegExp, thousandsSeparator)
+        : s
+    }).join('.');
+  }
+
+  return str + unitSeparator + unit;
+}
+
+/**
+ * Parse the string value into an integer in bytes.
+ *
+ * If no unit is given, it is assumed the value is in bytes.
+ *
+ * @param {number|string} val
+ *
+ * @returns {number|null}
+ * @public
+ */
+
+function parse(val) {
+  if (typeof val === 'number' && !isNaN(val)) {
+    return val;
+  }
+
+  if (typeof val !== 'string') {
+    return null;
+  }
+
+  // Test if the string passed is valid
+  var results = parseRegExp.exec(val);
+  var floatValue;
+  var unit = 'b';
+
+  if (!results) {
+    // Nothing could be extracted from the given string
+    floatValue = parseInt(val, 10);
+    unit = 'b'
+  } else {
+    // Retrieve the value and the unit
+    floatValue = parseFloat(results[1]);
+    unit = results[4].toLowerCase();
+  }
+
+  if (isNaN(floatValue)) {
+    return null;
+  }
+
+  return Math.floor(map[unit] * floatValue);
+}
diff --git a/backend/node_modules/bytes/package.json b/backend/node_modules/bytes/package.json
new file mode 100644
index 0000000..f2b6a8b
--- /dev/null
+++ b/backend/node_modules/bytes/package.json
@@ -0,0 +1,42 @@
+{
+  "name": "bytes",
+  "description": "Utility to parse a string bytes to bytes and vice-versa",
+  "version": "3.1.2",
+  "author": "TJ Holowaychuk <tj@vision-media.ca> (http://tjholowaychuk.com)",
+  "contributors": [
+    "Jed Watson <jed.watson@me.com>",
+    "Théo FIDRY <theo.fidry@gmail.com>"
+  ],
+  "license": "MIT",
+  "keywords": [
+    "byte",
+    "bytes",
+    "utility",
+    "parse",
+    "parser",
+    "convert",
+    "converter"
+  ],
+  "repository": "visionmedia/bytes.js",
+  "devDependencies": {
+    "eslint": "7.32.0",
+    "eslint-plugin-markdown": "2.2.1",
+    "mocha": "9.2.0",
+    "nyc": "15.1.0"
+  },
+  "files": [
+    "History.md",
+    "LICENSE",
+    "Readme.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --check-leaks --reporter spec",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
+  }
+}
diff --git a/backend/node_modules/call-bind-apply-helpers/.eslintrc b/backend/node_modules/call-bind-apply-helpers/.eslintrc
new file mode 100644
index 0000000..dfa9a6c
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/.eslintrc
@@ -0,0 +1,16 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"func-name-matching": 0,
+		"id-length": 0,
+		"new-cap": [2, {
+			"capIsNewExceptions": [
+				"GetIntrinsic",
+			],
+		}],
+		"no-magic-numbers": 0,
+	},
+}
diff --git a/backend/node_modules/call-bind-apply-helpers/.github/FUNDING.yml b/backend/node_modules/call-bind-apply-helpers/.github/FUNDING.yml
new file mode 100644
index 0000000..0011e9d
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/call-bind-apply-helpers
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/call-bind-apply-helpers/.nycrc b/backend/node_modules/call-bind-apply-helpers/.nycrc
new file mode 100644
index 0000000..bdd626c
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/.nycrc
@@ -0,0 +1,9 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/call-bind-apply-helpers/CHANGELOG.md b/backend/node_modules/call-bind-apply-helpers/CHANGELOG.md
new file mode 100644
index 0000000..cf630e8
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/CHANGELOG.md
@@ -0,0 +1,23 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.0.1](https://github.com/ljharb/call-bind-apply-helpers/compare/v1.0.0...v1.0.1) - 2024-12-08
+
+### Commits
+
+- [types] `reflectApply`: fix types [`4efc396`](https://github.com/ljharb/call-bind-apply-helpers/commit/4efc3965351a4f02cc55e836fa391d3d11ef2ef8)
+- [Fix] `reflectApply`: oops, Reflect is not a function [`83cc739`](https://github.com/ljharb/call-bind-apply-helpers/commit/83cc7395de6b79b7730bdf092f1436f0b1263c75)
+- [Dev Deps] update `@arethetypeswrong/cli` [`80bd5d3`](https://github.com/ljharb/call-bind-apply-helpers/commit/80bd5d3ae58b4f6b6995ce439dd5a1bcb178a940)
+
+## v1.0.0 - 2024-12-05
+
+### Commits
+
+- Initial implementation, tests, readme [`7879629`](https://github.com/ljharb/call-bind-apply-helpers/commit/78796290f9b7430c9934d6f33d94ae9bc89fce04)
+- Initial commit [`3f1dc16`](https://github.com/ljharb/call-bind-apply-helpers/commit/3f1dc164afc43285631b114a5f9dd9137b2b952f)
+- npm init [`081df04`](https://github.com/ljharb/call-bind-apply-helpers/commit/081df048c312fcee400922026f6e97281200a603)
+- Only apps should have lockfiles [`5b9ca0f`](https://github.com/ljharb/call-bind-apply-helpers/commit/5b9ca0fe8101ebfaf309c549caac4e0a017ed930)
diff --git a/backend/node_modules/call-bind-apply-helpers/LICENSE b/backend/node_modules/call-bind-apply-helpers/LICENSE
new file mode 100644
index 0000000..f82f389
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/call-bind-apply-helpers/README.md b/backend/node_modules/call-bind-apply-helpers/README.md
new file mode 100644
index 0000000..8fc0dae
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/README.md
@@ -0,0 +1,62 @@
+# call-bind-apply-helpers <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![dependency status][deps-svg]][deps-url]
+[![dev dependency status][dev-deps-svg]][dev-deps-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+Helper functions around Function call/apply/bind, for use in `call-bind`.
+
+The only packages that should likely ever use this package directly are `call-bind` and `get-intrinsic`.
+Please use `call-bind` unless you have a very good reason not to.
+
+## Getting started
+
+```sh
+npm install --save call-bind-apply-helpers
+```
+
+## Usage/Examples
+
+```js
+const assert = require('assert');
+const callBindBasic = require('call-bind-apply-helpers');
+
+function f(a, b) {
+	assert.equal(this, 1);
+	assert.equal(a, 2);
+	assert.equal(b, 3);
+	assert.equal(arguments.length, 2);
+}
+
+const fBound = callBindBasic([f, 1]);
+
+delete Function.prototype.call;
+delete Function.prototype.bind;
+
+fBound(2, 3);
+```
+
+## Tests
+
+Clone the repo, `npm install`, and run `npm test`
+
+[package-url]: https://npmjs.org/package/call-bind-apply-helpers
+[npm-version-svg]: https://versionbadg.es/ljharb/call-bind-apply-helpers.svg
+[deps-svg]: https://david-dm.org/ljharb/call-bind-apply-helpers.svg
+[deps-url]: https://david-dm.org/ljharb/call-bind-apply-helpers
+[dev-deps-svg]: https://david-dm.org/ljharb/call-bind-apply-helpers/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/call-bind-apply-helpers#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/call-bind-apply-helpers.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/call-bind-apply-helpers.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/call-bind-apply-helpers.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=call-bind-apply-helpers
+[codecov-image]: https://codecov.io/gh/ljharb/call-bind-apply-helpers/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/call-bind-apply-helpers/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/call-bind-apply-helpers
+[actions-url]: https://github.com/ljharb/call-bind-apply-helpers/actions
diff --git a/backend/node_modules/call-bind-apply-helpers/actualApply.d.ts b/backend/node_modules/call-bind-apply-helpers/actualApply.d.ts
new file mode 100644
index 0000000..b87286a
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/actualApply.d.ts
@@ -0,0 +1 @@
+export = Reflect.apply;
\ No newline at end of file
diff --git a/backend/node_modules/call-bind-apply-helpers/actualApply.js b/backend/node_modules/call-bind-apply-helpers/actualApply.js
new file mode 100644
index 0000000..ffa5135
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/actualApply.js
@@ -0,0 +1,10 @@
+'use strict';
+
+var bind = require('function-bind');
+
+var $apply = require('./functionApply');
+var $call = require('./functionCall');
+var $reflectApply = require('./reflectApply');
+
+/** @type {import('./actualApply')} */
+module.exports = $reflectApply || bind.call($call, $apply);
diff --git a/backend/node_modules/call-bind-apply-helpers/applyBind.d.ts b/backend/node_modules/call-bind-apply-helpers/applyBind.d.ts
new file mode 100644
index 0000000..d176c1a
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/applyBind.d.ts
@@ -0,0 +1,19 @@
+import actualApply from './actualApply';
+
+type TupleSplitHead<T extends any[], N extends number> = T['length'] extends N
+  ? T
+  : T extends [...infer R, any]
+  ? TupleSplitHead<R, N>
+  : never
+
+type TupleSplitTail<T, N extends number, O extends any[] = []> = O['length'] extends N
+  ? T
+  : T extends [infer F, ...infer R]
+  ? TupleSplitTail<[...R], N, [...O, F]>
+  : never
+
+type TupleSplit<T extends any[], N extends number> = [TupleSplitHead<T, N>, TupleSplitTail<T, N>]
+
+declare function applyBind(...args: TupleSplit<Parameters<typeof actualApply>, 2>[1]): ReturnType<typeof actualApply>;
+
+export = applyBind;
\ No newline at end of file
diff --git a/backend/node_modules/call-bind-apply-helpers/applyBind.js b/backend/node_modules/call-bind-apply-helpers/applyBind.js
new file mode 100644
index 0000000..d2b7723
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/applyBind.js
@@ -0,0 +1,10 @@
+'use strict';
+
+var bind = require('function-bind');
+var $apply = require('./functionApply');
+var actualApply = require('./actualApply');
+
+/** @type {import('./applyBind')} */
+module.exports = function applyBind() {
+	return actualApply(bind, $apply, arguments);
+};
diff --git a/backend/node_modules/call-bind-apply-helpers/functionApply.d.ts b/backend/node_modules/call-bind-apply-helpers/functionApply.d.ts
new file mode 100644
index 0000000..1f6e11b
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/functionApply.d.ts
@@ -0,0 +1 @@
+export = Function.prototype.apply;
\ No newline at end of file
diff --git a/backend/node_modules/call-bind-apply-helpers/functionApply.js b/backend/node_modules/call-bind-apply-helpers/functionApply.js
new file mode 100644
index 0000000..c71df9c
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/functionApply.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./functionApply')} */
+module.exports = Function.prototype.apply;
diff --git a/backend/node_modules/call-bind-apply-helpers/functionCall.d.ts b/backend/node_modules/call-bind-apply-helpers/functionCall.d.ts
new file mode 100644
index 0000000..15e93df
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/functionCall.d.ts
@@ -0,0 +1 @@
+export = Function.prototype.call;
\ No newline at end of file
diff --git a/backend/node_modules/call-bind-apply-helpers/functionCall.js b/backend/node_modules/call-bind-apply-helpers/functionCall.js
new file mode 100644
index 0000000..7a8d873
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/functionCall.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./functionCall')} */
+module.exports = Function.prototype.call;
diff --git a/backend/node_modules/call-bind-apply-helpers/index.d.ts b/backend/node_modules/call-bind-apply-helpers/index.d.ts
new file mode 100644
index 0000000..a7ae2c5
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/index.d.ts
@@ -0,0 +1,46 @@
+type RemoveFromTuple<
+  Tuple extends unknown[],
+  RemoveCount extends number,
+  Index extends 1[] = []
+> = Index["length"] extends RemoveCount
+  ? Tuple
+  : Tuple extends [first: unknown, ...infer Rest]
+  ? RemoveFromTuple<Rest, RemoveCount, [...Index, 1]>
+  : Tuple;
+
+type ConcatTuples<
+  Prefix extends unknown[],
+  Suffix extends unknown[]
+> = [...Prefix, ...Suffix];
+
+type ReplaceThis<T, NewThis> = T extends (this: infer OldThis, ...args: infer A) => infer R
+  ? (this: NewThis, ...args: A) => R
+  : never;
+
+type BindFunction<
+  TThis,
+  T extends (this: TThis, ...args: any[]) => any, // Allow specific types to propagate
+  TBoundArgs extends unknown[],
+  ReceiverBound extends boolean
+> = ReceiverBound extends true
+  ? (...args: RemoveFromTuple<Parameters<T>, TBoundArgs["length"] & number>) => ReturnType<ReplaceThis<T, TThis>>
+  : (...args: ConcatTuples<[TThis], RemoveFromTuple<Parameters<T>, TBoundArgs["length"] & number>>) => ReturnType<T>;
+
+declare function callBind<
+  TThis,
+  T extends (this: TThis, ...args: any[]) => any,
+  TBoundArgs extends Partial<Parameters<T>>
+>(
+  args: [fn: T, thisArg: TThis, ...boundArgs: TBoundArgs]
+): BindFunction<TThis, T, TBoundArgs, true>;
+
+declare function callBind<
+  TThis,
+  T extends (this: TThis, ...args: any[]) => any,
+  TBoundArgs extends Partial<Parameters<T>>
+>(
+  args: [fn: T, ...boundArgs: TBoundArgs]
+): BindFunction<TThis, T, TBoundArgs, false>;
+
+export as namespace callBind;
+export = callBind;
diff --git a/backend/node_modules/call-bind-apply-helpers/index.js b/backend/node_modules/call-bind-apply-helpers/index.js
new file mode 100644
index 0000000..8b6b994
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/index.js
@@ -0,0 +1,15 @@
+'use strict';
+
+var bind = require('function-bind');
+var $TypeError = require('es-errors/type');
+
+var $call = require('./functionCall');
+var $actualApply = require('./actualApply');
+
+/** @type {import('.')} */
+module.exports = function callBindBasic(args) {
+	if (args.length < 1 || typeof args[0] !== 'function') {
+		throw new $TypeError('a function is required');
+	}
+	return $actualApply(bind, $call, args);
+};
diff --git a/backend/node_modules/call-bind-apply-helpers/package.json b/backend/node_modules/call-bind-apply-helpers/package.json
new file mode 100644
index 0000000..7398be7
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/package.json
@@ -0,0 +1,85 @@
+{
+	"name": "call-bind-apply-helpers",
+	"version": "1.0.1",
+	"description": "Helper functions around Function call/apply/bind, for use in `call-bind`",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./actualApply": "./actualApply.js",
+		"./applyBind": "./applyBind.js",
+		"./functionApply": "./functionApply.js",
+		"./functionCall": "./functionCall.js",
+		"./reflectApply": "./reflectApply.js",
+		"./package.json": "./package.json"
+	},
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=auto",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prepublishOnly": "safe-publish-latest",
+		"prelint": "evalmd README.md",
+		"lint": "eslint --ext=.js,.mjs .",
+		"postlint": "tsc -p . && attw -P",
+		"pretest": "npm run lint",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@'>=10.2' audit --production",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/call-bind-apply-helpers.git"
+	},
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/call-bind-apply-helpers/issues"
+	},
+	"homepage": "https://github.com/ljharb/call-bind-apply-helpers#readme",
+	"dependencies": {
+		"es-errors": "^1.3.0",
+		"function-bind": "^1.1.2"
+	},
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.17.1",
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.2",
+		"@types/for-each": "^0.3.3",
+		"@types/function-bind": "^1.1.10",
+		"@types/object-inspect": "^1.13.0",
+		"@types/tape": "^5.6.5",
+		"auto-changelog": "^2.5.0",
+		"encoding": "^0.1.13",
+		"es-value-fixtures": "^1.5.0",
+		"eslint": "=8.8.0",
+		"evalmd": "^0.0.19",
+		"for-each": "^0.3.3",
+		"has-strict-mode": "^1.0.1",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"object-inspect": "^1.13.3",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"testling": {
+		"files": "test/index.js"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/backend/node_modules/call-bind-apply-helpers/reflectApply.d.ts b/backend/node_modules/call-bind-apply-helpers/reflectApply.d.ts
new file mode 100644
index 0000000..6b2ae76
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/reflectApply.d.ts
@@ -0,0 +1,3 @@
+declare const reflectApply: false | typeof Reflect.apply;
+
+export = reflectApply;
diff --git a/backend/node_modules/call-bind-apply-helpers/reflectApply.js b/backend/node_modules/call-bind-apply-helpers/reflectApply.js
new file mode 100644
index 0000000..3d03caa
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/reflectApply.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./reflectApply')} */
+module.exports = typeof Reflect !== 'undefined' && Reflect && Reflect.apply;
diff --git a/backend/node_modules/call-bind-apply-helpers/test/index.js b/backend/node_modules/call-bind-apply-helpers/test/index.js
new file mode 100644
index 0000000..8acc08a
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/test/index.js
@@ -0,0 +1,63 @@
+'use strict';
+
+var callBind = require('../');
+var hasStrictMode = require('has-strict-mode')();
+var forEach = require('for-each');
+var inspect = require('object-inspect');
+var v = require('es-value-fixtures');
+
+var test = require('tape');
+
+test('callBindBasic', function (t) {
+	forEach(v.nonFunctions, function (nonFunction) {
+		t['throws'](
+			// @ts-expect-error
+			function () { callBind([nonFunction]); },
+			TypeError,
+			inspect(nonFunction) + ' is not a function'
+		);
+	});
+
+	var sentinel = { sentinel: true };
+	/** @type {<T>(this: T, a: number, b: number) => [T | undefined, number, number]} */
+	var func = function (a, b) {
+		// eslint-disable-next-line no-invalid-this
+		return [!hasStrictMode && this === global ? undefined : this, a, b];
+	};
+	t.equal(func.length, 2, 'original function length is 2');
+
+	/** type {(thisArg: unknown, a: number, b: number) => [unknown, number, number]} */
+	var bound = callBind([func]);
+	/** type {((a: number, b: number) => [sentinel, typeof a, typeof b])} */
+	var boundR = callBind([func, sentinel]);
+	/** type {((b: number) => [sentinel, number, typeof b])} */
+	var boundArg = callBind([func, sentinel, 1]);
+
+	// @ts-expect-error
+	t.deepEqual(bound(), [undefined, undefined, undefined], 'bound func with no args');
+
+	// @ts-expect-error
+	t.deepEqual(func(), [undefined, undefined, undefined], 'unbound func with too few args');
+	// @ts-expect-error
+	t.deepEqual(bound(1, 2), [hasStrictMode ? 1 : Object(1), 2, undefined], 'bound func too few args');
+	// @ts-expect-error
+	t.deepEqual(boundR(), [sentinel, undefined, undefined], 'bound func with receiver, with too few args');
+	// @ts-expect-error
+	t.deepEqual(boundArg(), [sentinel, 1, undefined], 'bound func with receiver and arg, with too few args');
+
+	t.deepEqual(func(1, 2), [undefined, 1, 2], 'unbound func with right args');
+	t.deepEqual(bound(1, 2, 3), [hasStrictMode ? 1 : Object(1), 2, 3], 'bound func with right args');
+	t.deepEqual(boundR(1, 2), [sentinel, 1, 2], 'bound func with receiver, with right args');
+	t.deepEqual(boundArg(2), [sentinel, 1, 2], 'bound func with receiver and arg, with right arg');
+
+	// @ts-expect-error
+	t.deepEqual(func(1, 2, 3), [undefined, 1, 2], 'unbound func with too many args');
+	// @ts-expect-error
+	t.deepEqual(bound(1, 2, 3, 4), [hasStrictMode ? 1 : Object(1), 2, 3], 'bound func with too many args');
+	// @ts-expect-error
+	t.deepEqual(boundR(1, 2, 3), [sentinel, 1, 2], 'bound func with receiver, with too many args');
+	// @ts-expect-error
+	t.deepEqual(boundArg(2, 3), [sentinel, 1, 2], 'bound func with receiver and arg, with too many args');
+
+	t.end();
+});
diff --git a/backend/node_modules/call-bind-apply-helpers/tsconfig.json b/backend/node_modules/call-bind-apply-helpers/tsconfig.json
new file mode 100644
index 0000000..aef9993
--- /dev/null
+++ b/backend/node_modules/call-bind-apply-helpers/tsconfig.json
@@ -0,0 +1,9 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		"target": "es2021",
+	},
+	"exclude": [
+		"coverage",
+	],
+}
\ No newline at end of file
diff --git a/backend/node_modules/call-bound/.eslintrc b/backend/node_modules/call-bound/.eslintrc
new file mode 100644
index 0000000..2612ed8
--- /dev/null
+++ b/backend/node_modules/call-bound/.eslintrc
@@ -0,0 +1,13 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"new-cap": [2, {
+			"capIsNewExceptions": [
+				"GetIntrinsic",
+			],
+		}],
+	},
+}
diff --git a/backend/node_modules/call-bound/.github/FUNDING.yml b/backend/node_modules/call-bound/.github/FUNDING.yml
new file mode 100644
index 0000000..2a2a135
--- /dev/null
+++ b/backend/node_modules/call-bound/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/call-bound
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/call-bound/.nycrc b/backend/node_modules/call-bound/.nycrc
new file mode 100644
index 0000000..bdd626c
--- /dev/null
+++ b/backend/node_modules/call-bound/.nycrc
@@ -0,0 +1,9 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/call-bound/CHANGELOG.md b/backend/node_modules/call-bound/CHANGELOG.md
new file mode 100644
index 0000000..25fa7a5
--- /dev/null
+++ b/backend/node_modules/call-bound/CHANGELOG.md
@@ -0,0 +1,34 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.0.3](https://github.com/ljharb/call-bound/compare/v1.0.2...v1.0.3) - 2024-12-15
+
+### Commits
+
+- [Refactor] use `call-bind-apply-helpers` instead of `call-bind` [`5e0b134`](https://github.com/ljharb/call-bound/commit/5e0b13496df14fb7d05dae9412f088da8d3f75be)
+- [Deps] update `get-intrinsic` [`41fc967`](https://github.com/ljharb/call-bound/commit/41fc96732a22c7b7e8f381f93ccc54bb6293be2e)
+- [readme] fix example [`79a0137`](https://github.com/ljharb/call-bound/commit/79a0137723f7c6d09c9c05452bbf8d5efb5d6e49)
+- [meta] add `sideEffects` flag [`08b07be`](https://github.com/ljharb/call-bound/commit/08b07be7f1c03f67dc6f3cdaf0906259771859f7)
+
+## [v1.0.2](https://github.com/ljharb/call-bound/compare/v1.0.1...v1.0.2) - 2024-12-10
+
+### Commits
+
+- [Dev Deps] update `@arethetypeswrong/cli`, `@ljharb/tsconfig`, `gopd` [`e6a5ffe`](https://github.com/ljharb/call-bound/commit/e6a5ffe849368fe4f74dfd6cdeca1b9baa39e8d5)
+- [Deps] update `call-bind`, `get-intrinsic` [`2aeb5b5`](https://github.com/ljharb/call-bound/commit/2aeb5b521dc2b2683d1345c753ea1161de2d1c14)
+- [types] improve return type [`1a0c9fe`](https://github.com/ljharb/call-bound/commit/1a0c9fe3114471e7ca1f57d104e2efe713bb4871)
+
+## v1.0.1 - 2024-12-05
+
+### Commits
+
+- Initial implementation, tests, readme, types [`6d94121`](https://github.com/ljharb/call-bound/commit/6d94121a9243602e506334069f7a03189fe3363d)
+- Initial commit [`0eae867`](https://github.com/ljharb/call-bound/commit/0eae867334ea025c33e6e91cdecfc9df96680cf9)
+- npm init [`71b2479`](https://github.com/ljharb/call-bound/commit/71b2479c6723e0b7d91a6b663613067e98b7b275)
+- Only apps should have lockfiles [`c3754a9`](https://github.com/ljharb/call-bound/commit/c3754a949b7f9132b47e2d18c1729889736741eb)
+- [actions] skip `npm ls` in node &lt; 10 [`74275a5`](https://github.com/ljharb/call-bound/commit/74275a5186b8caf6309b6b97472bdcb0df4683a8)
+- [Dev Deps] add missing peer dep [`1354de8`](https://github.com/ljharb/call-bound/commit/1354de8679413e4ae9c523d85f76fa7a5e032d97)
diff --git a/backend/node_modules/call-bound/LICENSE b/backend/node_modules/call-bound/LICENSE
new file mode 100644
index 0000000..f82f389
--- /dev/null
+++ b/backend/node_modules/call-bound/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/call-bound/README.md b/backend/node_modules/call-bound/README.md
new file mode 100644
index 0000000..a44e43e
--- /dev/null
+++ b/backend/node_modules/call-bound/README.md
@@ -0,0 +1,53 @@
+# call-bound <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![dependency status][deps-svg]][deps-url]
+[![dev dependency status][dev-deps-svg]][dev-deps-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+Robust call-bound JavaScript intrinsics, using `call-bind` and `get-intrinsic`.
+
+## Getting started
+
+```sh
+npm install --save call-bound
+```
+
+## Usage/Examples
+
+```js
+const assert = require('assert');
+const callBound = require('call-bound');
+
+const slice = callBound('Array.prototype.slice');
+
+delete Function.prototype.call;
+delete Function.prototype.bind;
+delete Array.prototype.slice;
+
+assert.deepEqual(slice([1, 2, 3, 4], 1, -1), [2, 3]);
+```
+
+## Tests
+
+Clone the repo, `npm install`, and run `npm test`
+
+[package-url]: https://npmjs.org/package/call-bound
+[npm-version-svg]: https://versionbadg.es/ljharb/call-bound.svg
+[deps-svg]: https://david-dm.org/ljharb/call-bound.svg
+[deps-url]: https://david-dm.org/ljharb/call-bound
+[dev-deps-svg]: https://david-dm.org/ljharb/call-bound/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/call-bound#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/call-bound.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/call-bound.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/call-bound.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=call-bound
+[codecov-image]: https://codecov.io/gh/ljharb/call-bound/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/call-bound/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/call-bound
+[actions-url]: https://github.com/ljharb/call-bound/actions
diff --git a/backend/node_modules/call-bound/index.d.ts b/backend/node_modules/call-bound/index.d.ts
new file mode 100644
index 0000000..e3d772c
--- /dev/null
+++ b/backend/node_modules/call-bound/index.d.ts
@@ -0,0 +1,13 @@
+import callBind from 'call-bind-apply-helpers';
+
+declare function callBoundIntrinsic(
+    name: string,
+    allowMissing?: false
+): ReturnType<typeof callBind>;
+
+declare function callBoundIntrinsic(
+    name: string,
+    allowMissing: true
+): undefined | ReturnType<typeof callBind>;
+
+export = callBoundIntrinsic;
\ No newline at end of file
diff --git a/backend/node_modules/call-bound/index.js b/backend/node_modules/call-bound/index.js
new file mode 100644
index 0000000..3bb4012
--- /dev/null
+++ b/backend/node_modules/call-bound/index.js
@@ -0,0 +1,18 @@
+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+
+var callBindBasic = require('call-bind-apply-helpers');
+
+/** @type {(thisArg: string, searchString: string, position?: number) => number} */
+var $indexOf = callBindBasic([GetIntrinsic('%String.prototype.indexOf%')]);
+
+/** @type {import('.')} */
+module.exports = function callBoundIntrinsic(name, allowMissing) {
+	// eslint-disable-next-line no-extra-parens
+	var intrinsic = /** @type {Parameters<typeof callBindBasic>[0][0]} */ (GetIntrinsic(name, !!allowMissing));
+	if (typeof intrinsic === 'function' && $indexOf(name, '.prototype.') > -1) {
+		return callBindBasic([intrinsic]);
+	}
+	return intrinsic;
+};
diff --git a/backend/node_modules/call-bound/package.json b/backend/node_modules/call-bound/package.json
new file mode 100644
index 0000000..2893ed1
--- /dev/null
+++ b/backend/node_modules/call-bound/package.json
@@ -0,0 +1,99 @@
+{
+	"name": "call-bound",
+	"version": "1.0.3",
+	"description": "Robust call-bound JavaScript intrinsics, using `call-bind` and `get-intrinsic`.",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./package.json": "./package.json"
+	},
+	"sideEffects": false,
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=auto",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prepublishOnly": "safe-publish-latest",
+		"prelint": "evalmd README.md",
+		"lint": "eslint --ext=.js,.mjs .",
+		"postlint": "tsc -p . && attw -P",
+		"pretest": "npm run lint",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@'>=10.2' audit --production",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/call-bound.git"
+	},
+	"keywords": [
+		"javascript",
+		"ecmascript",
+		"es",
+		"js",
+		"callbind",
+		"callbound",
+		"call",
+		"bind",
+		"bound",
+		"call-bind",
+		"call-bound",
+		"function",
+		"es-abstract"
+	],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"funding": {
+		"url": "https://github.com/sponsors/ljharb"
+	},
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/call-bound/issues"
+	},
+	"homepage": "https://github.com/ljharb/call-bound#readme",
+	"dependencies": {
+		"call-bind-apply-helpers": "^1.0.1",
+		"get-intrinsic": "^1.2.6"
+	},
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.17.1",
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.2",
+		"@types/call-bind": "^1.0.5",
+		"@types/get-intrinsic": "^1.2.3",
+		"@types/tape": "^5.6.5",
+		"auto-changelog": "^2.5.0",
+		"encoding": "^0.1.13",
+		"es-value-fixtures": "^1.5.0",
+		"eslint": "=8.8.0",
+		"evalmd": "^0.0.19",
+		"for-each": "^0.3.3",
+		"gopd": "^1.2.0",
+		"has-strict-mode": "^1.0.1",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"object-inspect": "^1.13.3",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"testling": {
+		"files": "test/index.js"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/backend/node_modules/call-bound/test/index.js b/backend/node_modules/call-bound/test/index.js
new file mode 100644
index 0000000..36f5f0b
--- /dev/null
+++ b/backend/node_modules/call-bound/test/index.js
@@ -0,0 +1,54 @@
+'use strict';
+
+var test = require('tape');
+
+var callBound = require('../');
+
+test('callBound', function (t) {
+	// static primitive
+	t.equal(callBound('Array.length'), Array.length, 'Array.length yields itself');
+	t.equal(callBound('%Array.length%'), Array.length, '%Array.length% yields itself');
+
+	// static non-function object
+	t.equal(callBound('Array.prototype'), Array.prototype, 'Array.prototype yields itself');
+	t.equal(callBound('%Array.prototype%'), Array.prototype, '%Array.prototype% yields itself');
+	t.equal(callBound('Array.constructor'), Array.constructor, 'Array.constructor yields itself');
+	t.equal(callBound('%Array.constructor%'), Array.constructor, '%Array.constructor% yields itself');
+
+	// static function
+	t.equal(callBound('Date.parse'), Date.parse, 'Date.parse yields itself');
+	t.equal(callBound('%Date.parse%'), Date.parse, '%Date.parse% yields itself');
+
+	// prototype primitive
+	t.equal(callBound('Error.prototype.message'), Error.prototype.message, 'Error.prototype.message yields itself');
+	t.equal(callBound('%Error.prototype.message%'), Error.prototype.message, '%Error.prototype.message% yields itself');
+
+	// prototype function
+	t.notEqual(callBound('Object.prototype.toString'), Object.prototype.toString, 'Object.prototype.toString does not yield itself');
+	t.notEqual(callBound('%Object.prototype.toString%'), Object.prototype.toString, '%Object.prototype.toString% does not yield itself');
+	t.equal(callBound('Object.prototype.toString')(true), Object.prototype.toString.call(true), 'call-bound Object.prototype.toString calls into the original');
+	t.equal(callBound('%Object.prototype.toString%')(true), Object.prototype.toString.call(true), 'call-bound %Object.prototype.toString% calls into the original');
+
+	t['throws'](
+		function () { callBound('does not exist'); },
+		SyntaxError,
+		'nonexistent intrinsic throws'
+	);
+	t['throws'](
+		function () { callBound('does not exist', true); },
+		SyntaxError,
+		'allowMissing arg still throws for unknown intrinsic'
+	);
+
+	t.test('real but absent intrinsic', { skip: typeof WeakRef !== 'undefined' }, function (st) {
+		st['throws'](
+			function () { callBound('WeakRef'); },
+			TypeError,
+			'real but absent intrinsic throws'
+		);
+		st.equal(callBound('WeakRef', true), undefined, 'allowMissing arg avoids exception');
+		st.end();
+	});
+
+	t.end();
+});
diff --git a/backend/node_modules/call-bound/tsconfig.json b/backend/node_modules/call-bound/tsconfig.json
new file mode 100644
index 0000000..d9a6668
--- /dev/null
+++ b/backend/node_modules/call-bound/tsconfig.json
@@ -0,0 +1,9 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		"target": "es2021",
+	},
+	"exclude": [
+		"coverage",
+	],
+}
diff --git a/backend/node_modules/combined-stream/License b/backend/node_modules/combined-stream/License
new file mode 100644
index 0000000..4804b7a
--- /dev/null
+++ b/backend/node_modules/combined-stream/License
@@ -0,0 +1,19 @@
+Copyright (c) 2011 Debuggable Limited <felix@debuggable.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/combined-stream/Readme.md b/backend/node_modules/combined-stream/Readme.md
new file mode 100644
index 0000000..9e367b5
--- /dev/null
+++ b/backend/node_modules/combined-stream/Readme.md
@@ -0,0 +1,138 @@
+# combined-stream
+
+A stream that emits multiple other streams one after another.
+
+**NB** Currently `combined-stream` works with streams version 1 only. There is ongoing effort to switch this library to streams version 2. Any help is welcome. :) Meanwhile you can explore other libraries that provide streams2 support with more or less compatibility with `combined-stream`.
+
+- [combined-stream2](https://www.npmjs.com/package/combined-stream2): A drop-in streams2-compatible replacement for the combined-stream module.
+
+- [multistream](https://www.npmjs.com/package/multistream): A stream that emits multiple other streams one after another.
+
+## Installation
+
+``` bash
+npm install combined-stream
+```
+
+## Usage
+
+Here is a simple example that shows how you can use combined-stream to combine
+two files into one:
+
+``` javascript
+var CombinedStream = require('combined-stream');
+var fs = require('fs');
+
+var combinedStream = CombinedStream.create();
+combinedStream.append(fs.createReadStream('file1.txt'));
+combinedStream.append(fs.createReadStream('file2.txt'));
+
+combinedStream.pipe(fs.createWriteStream('combined.txt'));
+```
+
+While the example above works great, it will pause all source streams until
+they are needed. If you don't want that to happen, you can set `pauseStreams`
+to `false`:
+
+``` javascript
+var CombinedStream = require('combined-stream');
+var fs = require('fs');
+
+var combinedStream = CombinedStream.create({pauseStreams: false});
+combinedStream.append(fs.createReadStream('file1.txt'));
+combinedStream.append(fs.createReadStream('file2.txt'));
+
+combinedStream.pipe(fs.createWriteStream('combined.txt'));
+```
+
+However, what if you don't have all the source streams yet, or you don't want
+to allocate the resources (file descriptors, memory, etc.) for them right away?
+Well, in that case you can simply provide a callback that supplies the stream
+by calling a `next()` function:
+
+``` javascript
+var CombinedStream = require('combined-stream');
+var fs = require('fs');
+
+var combinedStream = CombinedStream.create();
+combinedStream.append(function(next) {
+  next(fs.createReadStream('file1.txt'));
+});
+combinedStream.append(function(next) {
+  next(fs.createReadStream('file2.txt'));
+});
+
+combinedStream.pipe(fs.createWriteStream('combined.txt'));
+```
+
+## API
+
+### CombinedStream.create([options])
+
+Returns a new combined stream object. Available options are:
+
+* `maxDataSize`
+* `pauseStreams`
+
+The effect of those options is described below.
+
+### combinedStream.pauseStreams = `true`
+
+Whether to apply back pressure to the underlaying streams. If set to `false`,
+the underlaying streams will never be paused. If set to `true`, the
+underlaying streams will be paused right after being appended, as well as when
+`delayedStream.pipe()` wants to throttle.
+
+### combinedStream.maxDataSize = `2 * 1024 * 1024`
+
+The maximum amount of bytes (or characters) to buffer for all source streams.
+If this value is exceeded, `combinedStream` emits an `'error'` event.
+
+### combinedStream.dataSize = `0`
+
+The amount of bytes (or characters) currently buffered by `combinedStream`.
+
+### combinedStream.append(stream)
+
+Appends the given `stream` to the combinedStream object. If `pauseStreams` is
+set to `true, this stream will also be paused right away.
+
+`streams` can also be a function that takes one parameter called `next`. `next`
+is a function that must be invoked in order to provide the `next` stream, see
+example above.
+
+Regardless of how the `stream` is appended, combined-stream always attaches an
+`'error'` listener to it, so you don't have to do that manually.
+
+Special case: `stream` can also be a String or Buffer.
+
+### combinedStream.write(data)
+
+You should not call this, `combinedStream` takes care of piping the appended
+streams into itself for you.
+
+### combinedStream.resume()
+
+Causes `combinedStream` to start drain the streams it manages. The function is
+idempotent, and also emits a `'resume'` event each time which usually goes to
+the stream that is currently being drained.
+
+### combinedStream.pause();
+
+If `combinedStream.pauseStreams` is set to `false`, this does nothing.
+Otherwise a `'pause'` event is emitted, this goes to the stream that is
+currently being drained, so you can use it to apply back pressure.
+
+### combinedStream.end();
+
+Sets `combinedStream.writable` to false, emits an `'end'` event, and removes
+all streams from the queue.
+
+### combinedStream.destroy();
+
+Same as `combinedStream.end()`, except it emits a `'close'` event instead of
+`'end'`.
+
+## License
+
+combined-stream is licensed under the MIT license.
diff --git a/backend/node_modules/combined-stream/lib/combined_stream.js b/backend/node_modules/combined-stream/lib/combined_stream.js
new file mode 100644
index 0000000..125f097
--- /dev/null
+++ b/backend/node_modules/combined-stream/lib/combined_stream.js
@@ -0,0 +1,208 @@
+var util = require('util');
+var Stream = require('stream').Stream;
+var DelayedStream = require('delayed-stream');
+
+module.exports = CombinedStream;
+function CombinedStream() {
+  this.writable = false;
+  this.readable = true;
+  this.dataSize = 0;
+  this.maxDataSize = 2 * 1024 * 1024;
+  this.pauseStreams = true;
+
+  this._released = false;
+  this._streams = [];
+  this._currentStream = null;
+  this._insideLoop = false;
+  this._pendingNext = false;
+}
+util.inherits(CombinedStream, Stream);
+
+CombinedStream.create = function(options) {
+  var combinedStream = new this();
+
+  options = options || {};
+  for (var option in options) {
+    combinedStream[option] = options[option];
+  }
+
+  return combinedStream;
+};
+
+CombinedStream.isStreamLike = function(stream) {
+  return (typeof stream !== 'function')
+    && (typeof stream !== 'string')
+    && (typeof stream !== 'boolean')
+    && (typeof stream !== 'number')
+    && (!Buffer.isBuffer(stream));
+};
+
+CombinedStream.prototype.append = function(stream) {
+  var isStreamLike = CombinedStream.isStreamLike(stream);
+
+  if (isStreamLike) {
+    if (!(stream instanceof DelayedStream)) {
+      var newStream = DelayedStream.create(stream, {
+        maxDataSize: Infinity,
+        pauseStream: this.pauseStreams,
+      });
+      stream.on('data', this._checkDataSize.bind(this));
+      stream = newStream;
+    }
+
+    this._handleErrors(stream);
+
+    if (this.pauseStreams) {
+      stream.pause();
+    }
+  }
+
+  this._streams.push(stream);
+  return this;
+};
+
+CombinedStream.prototype.pipe = function(dest, options) {
+  Stream.prototype.pipe.call(this, dest, options);
+  this.resume();
+  return dest;
+};
+
+CombinedStream.prototype._getNext = function() {
+  this._currentStream = null;
+
+  if (this._insideLoop) {
+    this._pendingNext = true;
+    return; // defer call
+  }
+
+  this._insideLoop = true;
+  try {
+    do {
+      this._pendingNext = false;
+      this._realGetNext();
+    } while (this._pendingNext);
+  } finally {
+    this._insideLoop = false;
+  }
+};
+
+CombinedStream.prototype._realGetNext = function() {
+  var stream = this._streams.shift();
+
+
+  if (typeof stream == 'undefined') {
+    this.end();
+    return;
+  }
+
+  if (typeof stream !== 'function') {
+    this._pipeNext(stream);
+    return;
+  }
+
+  var getStream = stream;
+  getStream(function(stream) {
+    var isStreamLike = CombinedStream.isStreamLike(stream);
+    if (isStreamLike) {
+      stream.on('data', this._checkDataSize.bind(this));
+      this._handleErrors(stream);
+    }
+
+    this._pipeNext(stream);
+  }.bind(this));
+};
+
+CombinedStream.prototype._pipeNext = function(stream) {
+  this._currentStream = stream;
+
+  var isStreamLike = CombinedStream.isStreamLike(stream);
+  if (isStreamLike) {
+    stream.on('end', this._getNext.bind(this));
+    stream.pipe(this, {end: false});
+    return;
+  }
+
+  var value = stream;
+  this.write(value);
+  this._getNext();
+};
+
+CombinedStream.prototype._handleErrors = function(stream) {
+  var self = this;
+  stream.on('error', function(err) {
+    self._emitError(err);
+  });
+};
+
+CombinedStream.prototype.write = function(data) {
+  this.emit('data', data);
+};
+
+CombinedStream.prototype.pause = function() {
+  if (!this.pauseStreams) {
+    return;
+  }
+
+  if(this.pauseStreams && this._currentStream && typeof(this._currentStream.pause) == 'function') this._currentStream.pause();
+  this.emit('pause');
+};
+
+CombinedStream.prototype.resume = function() {
+  if (!this._released) {
+    this._released = true;
+    this.writable = true;
+    this._getNext();
+  }
+
+  if(this.pauseStreams && this._currentStream && typeof(this._currentStream.resume) == 'function') this._currentStream.resume();
+  this.emit('resume');
+};
+
+CombinedStream.prototype.end = function() {
+  this._reset();
+  this.emit('end');
+};
+
+CombinedStream.prototype.destroy = function() {
+  this._reset();
+  this.emit('close');
+};
+
+CombinedStream.prototype._reset = function() {
+  this.writable = false;
+  this._streams = [];
+  this._currentStream = null;
+};
+
+CombinedStream.prototype._checkDataSize = function() {
+  this._updateDataSize();
+  if (this.dataSize <= this.maxDataSize) {
+    return;
+  }
+
+  var message =
+    'DelayedStream#maxDataSize of ' + this.maxDataSize + ' bytes exceeded.';
+  this._emitError(new Error(message));
+};
+
+CombinedStream.prototype._updateDataSize = function() {
+  this.dataSize = 0;
+
+  var self = this;
+  this._streams.forEach(function(stream) {
+    if (!stream.dataSize) {
+      return;
+    }
+
+    self.dataSize += stream.dataSize;
+  });
+
+  if (this._currentStream && this._currentStream.dataSize) {
+    this.dataSize += this._currentStream.dataSize;
+  }
+};
+
+CombinedStream.prototype._emitError = function(err) {
+  this._reset();
+  this.emit('error', err);
+};
diff --git a/backend/node_modules/combined-stream/package.json b/backend/node_modules/combined-stream/package.json
new file mode 100644
index 0000000..6982b6d
--- /dev/null
+++ b/backend/node_modules/combined-stream/package.json
@@ -0,0 +1,25 @@
+{
+  "author": "Felix Geisendörfer <felix@debuggable.com> (http://debuggable.com/)",
+  "name": "combined-stream",
+  "description": "A stream that emits multiple other streams one after another.",
+  "version": "1.0.8",
+  "homepage": "https://github.com/felixge/node-combined-stream",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/felixge/node-combined-stream.git"
+  },
+  "main": "./lib/combined_stream",
+  "scripts": {
+    "test": "node test/run.js"
+  },
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "dependencies": {
+    "delayed-stream": "~1.0.0"
+  },
+  "devDependencies": {
+    "far": "~0.0.7"
+  },
+  "license": "MIT"
+}
diff --git a/backend/node_modules/combined-stream/yarn.lock b/backend/node_modules/combined-stream/yarn.lock
new file mode 100644
index 0000000..7edf418
--- /dev/null
+++ b/backend/node_modules/combined-stream/yarn.lock
@@ -0,0 +1,17 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+delayed-stream@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
+
+far@~0.0.7:
+  version "0.0.7"
+  resolved "https://registry.yarnpkg.com/far/-/far-0.0.7.tgz#01c1fd362bcd26ce9cf161af3938aa34619f79a7"
+  dependencies:
+    oop "0.0.3"
+
+oop@0.0.3:
+  version "0.0.3"
+  resolved "https://registry.yarnpkg.com/oop/-/oop-0.0.3.tgz#70fa405a5650891a194fdc82ca68dad6dabf4401"
diff --git a/backend/node_modules/concat-stream/LICENSE b/backend/node_modules/concat-stream/LICENSE
new file mode 100644
index 0000000..99c130e
--- /dev/null
+++ b/backend/node_modules/concat-stream/LICENSE
@@ -0,0 +1,24 @@
+The MIT License
+
+Copyright (c) 2013 Max Ogden
+
+Permission is hereby granted, free of charge, 
+to any person obtaining a copy of this software and 
+associated documentation files (the "Software"), to 
+deal in the Software without restriction, including 
+without limitation the rights to use, copy, modify, 
+merge, publish, distribute, sublicense, and/or sell 
+copies of the Software, and to permit persons to whom 
+the Software is furnished to do so, 
+subject to the following conditions:
+
+The above copyright notice and this permission notice 
+shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
\ No newline at end of file
diff --git a/backend/node_modules/concat-stream/index.js b/backend/node_modules/concat-stream/index.js
new file mode 100644
index 0000000..dd672a7
--- /dev/null
+++ b/backend/node_modules/concat-stream/index.js
@@ -0,0 +1,144 @@
+var Writable = require('readable-stream').Writable
+var inherits = require('inherits')
+var bufferFrom = require('buffer-from')
+
+if (typeof Uint8Array === 'undefined') {
+  var U8 = require('typedarray').Uint8Array
+} else {
+  var U8 = Uint8Array
+}
+
+function ConcatStream(opts, cb) {
+  if (!(this instanceof ConcatStream)) return new ConcatStream(opts, cb)
+
+  if (typeof opts === 'function') {
+    cb = opts
+    opts = {}
+  }
+  if (!opts) opts = {}
+
+  var encoding = opts.encoding
+  var shouldInferEncoding = false
+
+  if (!encoding) {
+    shouldInferEncoding = true
+  } else {
+    encoding =  String(encoding).toLowerCase()
+    if (encoding === 'u8' || encoding === 'uint8') {
+      encoding = 'uint8array'
+    }
+  }
+
+  Writable.call(this, { objectMode: true })
+
+  this.encoding = encoding
+  this.shouldInferEncoding = shouldInferEncoding
+
+  if (cb) this.on('finish', function () { cb(this.getBody()) })
+  this.body = []
+}
+
+module.exports = ConcatStream
+inherits(ConcatStream, Writable)
+
+ConcatStream.prototype._write = function(chunk, enc, next) {
+  this.body.push(chunk)
+  next()
+}
+
+ConcatStream.prototype.inferEncoding = function (buff) {
+  var firstBuffer = buff === undefined ? this.body[0] : buff;
+  if (Buffer.isBuffer(firstBuffer)) return 'buffer'
+  if (typeof Uint8Array !== 'undefined' && firstBuffer instanceof Uint8Array) return 'uint8array'
+  if (Array.isArray(firstBuffer)) return 'array'
+  if (typeof firstBuffer === 'string') return 'string'
+  if (Object.prototype.toString.call(firstBuffer) === "[object Object]") return 'object'
+  return 'buffer'
+}
+
+ConcatStream.prototype.getBody = function () {
+  if (!this.encoding && this.body.length === 0) return []
+  if (this.shouldInferEncoding) this.encoding = this.inferEncoding()
+  if (this.encoding === 'array') return arrayConcat(this.body)
+  if (this.encoding === 'string') return stringConcat(this.body)
+  if (this.encoding === 'buffer') return bufferConcat(this.body)
+  if (this.encoding === 'uint8array') return u8Concat(this.body)
+  return this.body
+}
+
+var isArray = Array.isArray || function (arr) {
+  return Object.prototype.toString.call(arr) == '[object Array]'
+}
+
+function isArrayish (arr) {
+  return /Array\]$/.test(Object.prototype.toString.call(arr))
+}
+
+function isBufferish (p) {
+  return typeof p === 'string' || isArrayish(p) || (p && typeof p.subarray === 'function')
+}
+
+function stringConcat (parts) {
+  var strings = []
+  var needsToString = false
+  for (var i = 0; i < parts.length; i++) {
+    var p = parts[i]
+    if (typeof p === 'string') {
+      strings.push(p)
+    } else if (Buffer.isBuffer(p)) {
+      strings.push(p)
+    } else if (isBufferish(p)) {
+      strings.push(bufferFrom(p))
+    } else {
+      strings.push(bufferFrom(String(p)))
+    }
+  }
+  if (Buffer.isBuffer(parts[0])) {
+    strings = Buffer.concat(strings)
+    strings = strings.toString('utf8')
+  } else {
+    strings = strings.join('')
+  }
+  return strings
+}
+
+function bufferConcat (parts) {
+  var bufs = []
+  for (var i = 0; i < parts.length; i++) {
+    var p = parts[i]
+    if (Buffer.isBuffer(p)) {
+      bufs.push(p)
+    } else if (isBufferish(p)) {
+      bufs.push(bufferFrom(p))
+    } else {
+      bufs.push(bufferFrom(String(p)))
+    }
+  }
+  return Buffer.concat(bufs)
+}
+
+function arrayConcat (parts) {
+  var res = []
+  for (var i = 0; i < parts.length; i++) {
+    res.push.apply(res, parts[i])
+  }
+  return res
+}
+
+function u8Concat (parts) {
+  var len = 0
+  for (var i = 0; i < parts.length; i++) {
+    if (typeof parts[i] === 'string') {
+      parts[i] = bufferFrom(parts[i])
+    }
+    len += parts[i].length
+  }
+  var u8 = new U8(len)
+  for (var i = 0, offset = 0; i < parts.length; i++) {
+    var part = parts[i]
+    for (var j = 0; j < part.length; j++) {
+      u8[offset++] = part[j]
+    }
+  }
+  return u8
+}
diff --git a/backend/node_modules/concat-stream/package.json b/backend/node_modules/concat-stream/package.json
new file mode 100644
index 0000000..f709022
--- /dev/null
+++ b/backend/node_modules/concat-stream/package.json
@@ -0,0 +1,55 @@
+{
+  "name": "concat-stream",
+  "version": "1.6.2",
+  "description": "writable stream that concatenates strings or binary data and calls a callback with the result",
+  "tags": [
+    "stream",
+    "simple",
+    "util",
+    "utility"
+  ],
+  "author": "Max Ogden <max@maxogden.com>",
+  "repository": {
+    "type": "git",
+    "url": "http://github.com/maxogden/concat-stream.git"
+  },
+  "bugs": {
+    "url": "http://github.com/maxogden/concat-stream/issues"
+  },
+  "engines": [
+    "node >= 0.8"
+  ],
+  "main": "index.js",
+  "files": [
+    "index.js"
+  ],
+  "scripts": {
+    "test": "tape test/*.js test/server/*.js"
+  },
+  "license": "MIT",
+  "dependencies": {
+    "buffer-from": "^1.0.0",
+    "inherits": "^2.0.3",
+    "readable-stream": "^2.2.2",
+    "typedarray": "^0.0.6"
+  },
+  "devDependencies": {
+    "tape": "^4.6.3"
+  },
+  "testling": {
+    "files": "test/*.js",
+    "browsers": [
+      "ie/8..latest",
+      "firefox/17..latest",
+      "firefox/nightly",
+      "chrome/22..latest",
+      "chrome/canary",
+      "opera/12..latest",
+      "opera/next",
+      "safari/5.1..latest",
+      "ipad/6.0..latest",
+      "iphone/6.0..latest",
+      "android-browser/4.2..latest"
+    ]
+  }
+}
diff --git a/backend/node_modules/concat-stream/readme.md b/backend/node_modules/concat-stream/readme.md
new file mode 100644
index 0000000..7aa19c4
--- /dev/null
+++ b/backend/node_modules/concat-stream/readme.md
@@ -0,0 +1,102 @@
+# concat-stream
+
+Writable stream that concatenates all the data from a stream and calls a callback with the result. Use this when you want to collect all the data from a stream into a single buffer.
+
+[![Build Status](https://travis-ci.org/maxogden/concat-stream.svg?branch=master)](https://travis-ci.org/maxogden/concat-stream)
+
+[![NPM](https://nodei.co/npm/concat-stream.png)](https://nodei.co/npm/concat-stream/)
+
+### description
+
+Streams emit many buffers. If you want to collect all of the buffers, and when the stream ends concatenate all of the buffers together and receive a single buffer then this is the module for you.
+
+Only use this if you know you can fit all of the output of your stream into a single Buffer (e.g. in RAM).
+
+There are also `objectMode` streams that emit things other than Buffers, and you can concatenate these too. See below for details.
+
+## Related
+
+`concat-stream` is part of the [mississippi stream utility collection](https://github.com/maxogden/mississippi) which includes more useful stream modules similar to this one.
+
+### examples
+
+#### Buffers
+
+```js
+var fs = require('fs')
+var concat = require('concat-stream')
+
+var readStream = fs.createReadStream('cat.png')
+var concatStream = concat(gotPicture)
+
+readStream.on('error', handleError)
+readStream.pipe(concatStream)
+
+function gotPicture(imageBuffer) {
+  // imageBuffer is all of `cat.png` as a node.js Buffer
+}
+
+function handleError(err) {
+  // handle your error appropriately here, e.g.:
+  console.error(err) // print the error to STDERR
+  process.exit(1) // exit program with non-zero exit code
+}
+
+```
+
+#### Arrays
+
+```js
+var write = concat(function(data) {})
+write.write([1,2,3])
+write.write([4,5,6])
+write.end()
+// data will be [1,2,3,4,5,6] in the above callback
+```
+
+#### Uint8Arrays
+
+```js
+var write = concat(function(data) {})
+var a = new Uint8Array(3)
+a[0] = 97; a[1] = 98; a[2] = 99
+write.write(a)
+write.write('!')
+write.end(Buffer.from('!!1'))
+```
+
+See `test/` for more examples
+
+# methods
+
+```js
+var concat = require('concat-stream')
+```
+
+## var writable = concat(opts={}, cb)
+
+Return a `writable` stream that will fire `cb(data)` with all of the data that
+was written to the stream. Data can be written to `writable` as strings,
+Buffers, arrays of byte integers, and Uint8Arrays. 
+
+By default `concat-stream` will give you back the same data type as the type of the first buffer written to the stream. Use `opts.encoding` to set what format `data` should be returned as, e.g. if you if you don't want to rely on the built-in type checking or for some other reason.
+
+* `string` - get a string
+* `buffer` - get back a Buffer
+* `array` - get an array of byte integers
+* `uint8array`, `u8`, `uint8` - get back a Uint8Array
+* `object`, get back an array of Objects
+
+If you don't specify an encoding, and the types can't be inferred (e.g. you write things that aren't in the list above), it will try to convert concat them into a `Buffer`.
+
+If nothing is written to `writable` then `data` will be an empty array `[]`.
+
+# error handling
+
+`concat-stream` does not handle errors for you, so you must handle errors on whatever streams you pipe into `concat-stream`. This is a general rule when programming with node.js streams: always handle errors on each and every stream. Since `concat-stream` is not itself a stream it does not emit errors.
+
+We recommend using [`end-of-stream`](https://npmjs.org/end-of-stream) or [`pump`](https://npmjs.org/pump) for writing error tolerant stream code.
+
+# license
+
+MIT LICENSE
diff --git a/backend/node_modules/content-disposition/HISTORY.md b/backend/node_modules/content-disposition/HISTORY.md
new file mode 100644
index 0000000..488effa
--- /dev/null
+++ b/backend/node_modules/content-disposition/HISTORY.md
@@ -0,0 +1,60 @@
+0.5.4 / 2021-12-10
+==================
+
+  * deps: safe-buffer@5.2.1
+
+0.5.3 / 2018-12-17
+==================
+
+  * Use `safe-buffer` for improved Buffer API
+
+0.5.2 / 2016-12-08
+==================
+
+  * Fix `parse` to accept any linear whitespace character
+
+0.5.1 / 2016-01-17
+==================
+
+  * perf: enable strict mode
+
+0.5.0 / 2014-10-11
+==================
+
+  * Add `parse` function
+
+0.4.0 / 2014-09-21
+==================
+
+  * Expand non-Unicode `filename` to the full ISO-8859-1 charset
+
+0.3.0 / 2014-09-20
+==================
+
+  * Add `fallback` option
+  * Add `type` option
+
+0.2.0 / 2014-09-19
+==================
+
+  * Reduce ambiguity of file names with hex escape in buggy browsers
+
+0.1.2 / 2014-09-19
+==================
+
+  * Fix periodic invalid Unicode filename header
+
+0.1.1 / 2014-09-19
+==================
+
+  * Fix invalid characters appearing in `filename*` parameter
+
+0.1.0 / 2014-09-18
+==================
+
+  * Make the `filename` argument optional
+
+0.0.0 / 2014-09-18
+==================
+
+  * Initial release
diff --git a/backend/node_modules/content-disposition/LICENSE b/backend/node_modules/content-disposition/LICENSE
new file mode 100644
index 0000000..84441fb
--- /dev/null
+++ b/backend/node_modules/content-disposition/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2014-2017 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/content-disposition/README.md b/backend/node_modules/content-disposition/README.md
new file mode 100644
index 0000000..3a0bb05
--- /dev/null
+++ b/backend/node_modules/content-disposition/README.md
@@ -0,0 +1,142 @@
+# content-disposition
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][github-actions-ci-image]][github-actions-ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Create and parse HTTP `Content-Disposition` header
+
+## Installation
+
+```sh
+$ npm install content-disposition
+```
+
+## API
+
+```js
+var contentDisposition = require('content-disposition')
+```
+
+### contentDisposition(filename, options)
+
+Create an attachment `Content-Disposition` header value using the given file name,
+if supplied. The `filename` is optional and if no file name is desired, but you
+want to specify `options`, set `filename` to `undefined`.
+
+```js
+res.setHeader('Content-Disposition', contentDisposition('∫ maths.pdf'))
+```
+
+**note** HTTP headers are of the ISO-8859-1 character set. If you are writing this
+header through a means different from `setHeader` in Node.js, you'll want to specify
+the `'binary'` encoding in Node.js.
+
+#### Options
+
+`contentDisposition` accepts these properties in the options object.
+
+##### fallback
+
+If the `filename` option is outside ISO-8859-1, then the file name is actually
+stored in a supplemental field for clients that support Unicode file names and
+a ISO-8859-1 version of the file name is automatically generated.
+
+This specifies the ISO-8859-1 file name to override the automatic generation or
+disables the generation all together, defaults to `true`.
+
+  - A string will specify the ISO-8859-1 file name to use in place of automatic
+    generation.
+  - `false` will disable including a ISO-8859-1 file name and only include the
+    Unicode version (unless the file name is already ISO-8859-1).
+  - `true` will enable automatic generation if the file name is outside ISO-8859-1.
+
+If the `filename` option is ISO-8859-1 and this option is specified and has a
+different value, then the `filename` option is encoded in the extended field
+and this set as the fallback field, even though they are both ISO-8859-1.
+
+##### type
+
+Specifies the disposition type, defaults to `"attachment"`. This can also be
+`"inline"`, or any other value (all values except inline are treated like
+`attachment`, but can convey additional information if both parties agree to
+it). The type is normalized to lower-case.
+
+### contentDisposition.parse(string)
+
+```js
+var disposition = contentDisposition.parse('attachment; filename="EURO rates.txt"; filename*=UTF-8\'\'%e2%82%ac%20rates.txt')
+```
+
+Parse a `Content-Disposition` header string. This automatically handles extended
+("Unicode") parameters by decoding them and providing them under the standard
+parameter name. This will return an object with the following properties (examples
+are shown for the string `'attachment; filename="EURO rates.txt"; filename*=UTF-8\'\'%e2%82%ac%20rates.txt'`):
+
+ - `type`: The disposition type (always lower case). Example: `'attachment'`
+
+ - `parameters`: An object of the parameters in the disposition (name of parameter
+   always lower case and extended versions replace non-extended versions). Example:
+   `{filename: "€ rates.txt"}`
+
+## Examples
+
+### Send a file for download
+
+```js
+var contentDisposition = require('content-disposition')
+var destroy = require('destroy')
+var fs = require('fs')
+var http = require('http')
+var onFinished = require('on-finished')
+
+var filePath = '/path/to/public/plans.pdf'
+
+http.createServer(function onRequest (req, res) {
+  // set headers
+  res.setHeader('Content-Type', 'application/pdf')
+  res.setHeader('Content-Disposition', contentDisposition(filePath))
+
+  // send file
+  var stream = fs.createReadStream(filePath)
+  stream.pipe(res)
+  onFinished(res, function () {
+    destroy(stream)
+  })
+})
+```
+
+## Testing
+
+```sh
+$ npm test
+```
+
+## References
+
+- [RFC 2616: Hypertext Transfer Protocol -- HTTP/1.1][rfc-2616]
+- [RFC 5987: Character Set and Language Encoding for Hypertext Transfer Protocol (HTTP) Header Field Parameters][rfc-5987]
+- [RFC 6266: Use of the Content-Disposition Header Field in the Hypertext Transfer Protocol (HTTP)][rfc-6266]
+- [Test Cases for HTTP Content-Disposition header field (RFC 6266) and the Encodings defined in RFCs 2047, 2231 and 5987][tc-2231]
+
+[rfc-2616]: https://tools.ietf.org/html/rfc2616
+[rfc-5987]: https://tools.ietf.org/html/rfc5987
+[rfc-6266]: https://tools.ietf.org/html/rfc6266
+[tc-2231]: http://greenbytes.de/tech/tc2231/
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/content-disposition.svg
+[npm-url]: https://npmjs.org/package/content-disposition
+[node-version-image]: https://img.shields.io/node/v/content-disposition.svg
+[node-version-url]: https://nodejs.org/en/download
+[coveralls-image]: https://img.shields.io/coveralls/jshttp/content-disposition.svg
+[coveralls-url]: https://coveralls.io/r/jshttp/content-disposition?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/content-disposition.svg
+[downloads-url]: https://npmjs.org/package/content-disposition
+[github-actions-ci-image]: https://img.shields.io/github/workflow/status/jshttp/content-disposition/ci/master?label=ci
+[github-actions-ci-url]: https://github.com/jshttp/content-disposition?query=workflow%3Aci
diff --git a/backend/node_modules/content-disposition/index.js b/backend/node_modules/content-disposition/index.js
new file mode 100644
index 0000000..ecec899
--- /dev/null
+++ b/backend/node_modules/content-disposition/index.js
@@ -0,0 +1,458 @@
+/*!
+ * content-disposition
+ * Copyright(c) 2014-2017 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = contentDisposition
+module.exports.parse = parse
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var basename = require('path').basename
+var Buffer = require('safe-buffer').Buffer
+
+/**
+ * RegExp to match non attr-char, *after* encodeURIComponent (i.e. not including "%")
+ * @private
+ */
+
+var ENCODE_URL_ATTR_CHAR_REGEXP = /[\x00-\x20"'()*,/:;<=>?@[\\\]{}\x7f]/g // eslint-disable-line no-control-regex
+
+/**
+ * RegExp to match percent encoding escape.
+ * @private
+ */
+
+var HEX_ESCAPE_REGEXP = /%[0-9A-Fa-f]{2}/
+var HEX_ESCAPE_REPLACE_REGEXP = /%([0-9A-Fa-f]{2})/g
+
+/**
+ * RegExp to match non-latin1 characters.
+ * @private
+ */
+
+var NON_LATIN1_REGEXP = /[^\x20-\x7e\xa0-\xff]/g
+
+/**
+ * RegExp to match quoted-pair in RFC 2616
+ *
+ * quoted-pair = "\" CHAR
+ * CHAR        = <any US-ASCII character (octets 0 - 127)>
+ * @private
+ */
+
+var QESC_REGEXP = /\\([\u0000-\u007f])/g // eslint-disable-line no-control-regex
+
+/**
+ * RegExp to match chars that must be quoted-pair in RFC 2616
+ * @private
+ */
+
+var QUOTE_REGEXP = /([\\"])/g
+
+/**
+ * RegExp for various RFC 2616 grammar
+ *
+ * parameter     = token "=" ( token | quoted-string )
+ * token         = 1*<any CHAR except CTLs or separators>
+ * separators    = "(" | ")" | "<" | ">" | "@"
+ *               | "," | ";" | ":" | "\" | <">
+ *               | "/" | "[" | "]" | "?" | "="
+ *               | "{" | "}" | SP | HT
+ * quoted-string = ( <"> *(qdtext | quoted-pair ) <"> )
+ * qdtext        = <any TEXT except <">>
+ * quoted-pair   = "\" CHAR
+ * CHAR          = <any US-ASCII character (octets 0 - 127)>
+ * TEXT          = <any OCTET except CTLs, but including LWS>
+ * LWS           = [CRLF] 1*( SP | HT )
+ * CRLF          = CR LF
+ * CR            = <US-ASCII CR, carriage return (13)>
+ * LF            = <US-ASCII LF, linefeed (10)>
+ * SP            = <US-ASCII SP, space (32)>
+ * HT            = <US-ASCII HT, horizontal-tab (9)>
+ * CTL           = <any US-ASCII control character (octets 0 - 31) and DEL (127)>
+ * OCTET         = <any 8-bit sequence of data>
+ * @private
+ */
+
+var PARAM_REGEXP = /;[\x09\x20]*([!#$%&'*+.0-9A-Z^_`a-z|~-]+)[\x09\x20]*=[\x09\x20]*("(?:[\x20!\x23-\x5b\x5d-\x7e\x80-\xff]|\\[\x20-\x7e])*"|[!#$%&'*+.0-9A-Z^_`a-z|~-]+)[\x09\x20]*/g // eslint-disable-line no-control-regex
+var TEXT_REGEXP = /^[\x20-\x7e\x80-\xff]+$/
+var TOKEN_REGEXP = /^[!#$%&'*+.0-9A-Z^_`a-z|~-]+$/
+
+/**
+ * RegExp for various RFC 5987 grammar
+ *
+ * ext-value     = charset  "'" [ language ] "'" value-chars
+ * charset       = "UTF-8" / "ISO-8859-1" / mime-charset
+ * mime-charset  = 1*mime-charsetc
+ * mime-charsetc = ALPHA / DIGIT
+ *               / "!" / "#" / "$" / "%" / "&"
+ *               / "+" / "-" / "^" / "_" / "`"
+ *               / "{" / "}" / "~"
+ * language      = ( 2*3ALPHA [ extlang ] )
+ *               / 4ALPHA
+ *               / 5*8ALPHA
+ * extlang       = *3( "-" 3ALPHA )
+ * value-chars   = *( pct-encoded / attr-char )
+ * pct-encoded   = "%" HEXDIG HEXDIG
+ * attr-char     = ALPHA / DIGIT
+ *               / "!" / "#" / "$" / "&" / "+" / "-" / "."
+ *               / "^" / "_" / "`" / "|" / "~"
+ * @private
+ */
+
+var EXT_VALUE_REGEXP = /^([A-Za-z0-9!#$%&+\-^_`{}~]+)'(?:[A-Za-z]{2,3}(?:-[A-Za-z]{3}){0,3}|[A-Za-z]{4,8}|)'((?:%[0-9A-Fa-f]{2}|[A-Za-z0-9!#$&+.^_`|~-])+)$/
+
+/**
+ * RegExp for various RFC 6266 grammar
+ *
+ * disposition-type = "inline" | "attachment" | disp-ext-type
+ * disp-ext-type    = token
+ * disposition-parm = filename-parm | disp-ext-parm
+ * filename-parm    = "filename" "=" value
+ *                  | "filename*" "=" ext-value
+ * disp-ext-parm    = token "=" value
+ *                  | ext-token "=" ext-value
+ * ext-token        = <the characters in token, followed by "*">
+ * @private
+ */
+
+var DISPOSITION_TYPE_REGEXP = /^([!#$%&'*+.0-9A-Z^_`a-z|~-]+)[\x09\x20]*(?:$|;)/ // eslint-disable-line no-control-regex
+
+/**
+ * Create an attachment Content-Disposition header.
+ *
+ * @param {string} [filename]
+ * @param {object} [options]
+ * @param {string} [options.type=attachment]
+ * @param {string|boolean} [options.fallback=true]
+ * @return {string}
+ * @public
+ */
+
+function contentDisposition (filename, options) {
+  var opts = options || {}
+
+  // get type
+  var type = opts.type || 'attachment'
+
+  // get parameters
+  var params = createparams(filename, opts.fallback)
+
+  // format into string
+  return format(new ContentDisposition(type, params))
+}
+
+/**
+ * Create parameters object from filename and fallback.
+ *
+ * @param {string} [filename]
+ * @param {string|boolean} [fallback=true]
+ * @return {object}
+ * @private
+ */
+
+function createparams (filename, fallback) {
+  if (filename === undefined) {
+    return
+  }
+
+  var params = {}
+
+  if (typeof filename !== 'string') {
+    throw new TypeError('filename must be a string')
+  }
+
+  // fallback defaults to true
+  if (fallback === undefined) {
+    fallback = true
+  }
+
+  if (typeof fallback !== 'string' && typeof fallback !== 'boolean') {
+    throw new TypeError('fallback must be a string or boolean')
+  }
+
+  if (typeof fallback === 'string' && NON_LATIN1_REGEXP.test(fallback)) {
+    throw new TypeError('fallback must be ISO-8859-1 string')
+  }
+
+  // restrict to file base name
+  var name = basename(filename)
+
+  // determine if name is suitable for quoted string
+  var isQuotedString = TEXT_REGEXP.test(name)
+
+  // generate fallback name
+  var fallbackName = typeof fallback !== 'string'
+    ? fallback && getlatin1(name)
+    : basename(fallback)
+  var hasFallback = typeof fallbackName === 'string' && fallbackName !== name
+
+  // set extended filename parameter
+  if (hasFallback || !isQuotedString || HEX_ESCAPE_REGEXP.test(name)) {
+    params['filename*'] = name
+  }
+
+  // set filename parameter
+  if (isQuotedString || hasFallback) {
+    params.filename = hasFallback
+      ? fallbackName
+      : name
+  }
+
+  return params
+}
+
+/**
+ * Format object to Content-Disposition header.
+ *
+ * @param {object} obj
+ * @param {string} obj.type
+ * @param {object} [obj.parameters]
+ * @return {string}
+ * @private
+ */
+
+function format (obj) {
+  var parameters = obj.parameters
+  var type = obj.type
+
+  if (!type || typeof type !== 'string' || !TOKEN_REGEXP.test(type)) {
+    throw new TypeError('invalid type')
+  }
+
+  // start with normalized type
+  var string = String(type).toLowerCase()
+
+  // append parameters
+  if (parameters && typeof parameters === 'object') {
+    var param
+    var params = Object.keys(parameters).sort()
+
+    for (var i = 0; i < params.length; i++) {
+      param = params[i]
+
+      var val = param.substr(-1) === '*'
+        ? ustring(parameters[param])
+        : qstring(parameters[param])
+
+      string += '; ' + param + '=' + val
+    }
+  }
+
+  return string
+}
+
+/**
+ * Decode a RFC 5987 field value (gracefully).
+ *
+ * @param {string} str
+ * @return {string}
+ * @private
+ */
+
+function decodefield (str) {
+  var match = EXT_VALUE_REGEXP.exec(str)
+
+  if (!match) {
+    throw new TypeError('invalid extended field value')
+  }
+
+  var charset = match[1].toLowerCase()
+  var encoded = match[2]
+  var value
+
+  // to binary string
+  var binary = encoded.replace(HEX_ESCAPE_REPLACE_REGEXP, pdecode)
+
+  switch (charset) {
+    case 'iso-8859-1':
+      value = getlatin1(binary)
+      break
+    case 'utf-8':
+      value = Buffer.from(binary, 'binary').toString('utf8')
+      break
+    default:
+      throw new TypeError('unsupported charset in extended field')
+  }
+
+  return value
+}
+
+/**
+ * Get ISO-8859-1 version of string.
+ *
+ * @param {string} val
+ * @return {string}
+ * @private
+ */
+
+function getlatin1 (val) {
+  // simple Unicode -> ISO-8859-1 transformation
+  return String(val).replace(NON_LATIN1_REGEXP, '?')
+}
+
+/**
+ * Parse Content-Disposition header string.
+ *
+ * @param {string} string
+ * @return {object}
+ * @public
+ */
+
+function parse (string) {
+  if (!string || typeof string !== 'string') {
+    throw new TypeError('argument string is required')
+  }
+
+  var match = DISPOSITION_TYPE_REGEXP.exec(string)
+
+  if (!match) {
+    throw new TypeError('invalid type format')
+  }
+
+  // normalize type
+  var index = match[0].length
+  var type = match[1].toLowerCase()
+
+  var key
+  var names = []
+  var params = {}
+  var value
+
+  // calculate index to start at
+  index = PARAM_REGEXP.lastIndex = match[0].substr(-1) === ';'
+    ? index - 1
+    : index
+
+  // match parameters
+  while ((match = PARAM_REGEXP.exec(string))) {
+    if (match.index !== index) {
+      throw new TypeError('invalid parameter format')
+    }
+
+    index += match[0].length
+    key = match[1].toLowerCase()
+    value = match[2]
+
+    if (names.indexOf(key) !== -1) {
+      throw new TypeError('invalid duplicate parameter')
+    }
+
+    names.push(key)
+
+    if (key.indexOf('*') + 1 === key.length) {
+      // decode extended value
+      key = key.slice(0, -1)
+      value = decodefield(value)
+
+      // overwrite existing value
+      params[key] = value
+      continue
+    }
+
+    if (typeof params[key] === 'string') {
+      continue
+    }
+
+    if (value[0] === '"') {
+      // remove quotes and escapes
+      value = value
+        .substr(1, value.length - 2)
+        .replace(QESC_REGEXP, '$1')
+    }
+
+    params[key] = value
+  }
+
+  if (index !== -1 && index !== string.length) {
+    throw new TypeError('invalid parameter format')
+  }
+
+  return new ContentDisposition(type, params)
+}
+
+/**
+ * Percent decode a single character.
+ *
+ * @param {string} str
+ * @param {string} hex
+ * @return {string}
+ * @private
+ */
+
+function pdecode (str, hex) {
+  return String.fromCharCode(parseInt(hex, 16))
+}
+
+/**
+ * Percent encode a single character.
+ *
+ * @param {string} char
+ * @return {string}
+ * @private
+ */
+
+function pencode (char) {
+  return '%' + String(char)
+    .charCodeAt(0)
+    .toString(16)
+    .toUpperCase()
+}
+
+/**
+ * Quote a string for HTTP.
+ *
+ * @param {string} val
+ * @return {string}
+ * @private
+ */
+
+function qstring (val) {
+  var str = String(val)
+
+  return '"' + str.replace(QUOTE_REGEXP, '\\$1') + '"'
+}
+
+/**
+ * Encode a Unicode string for HTTP (RFC 5987).
+ *
+ * @param {string} val
+ * @return {string}
+ * @private
+ */
+
+function ustring (val) {
+  var str = String(val)
+
+  // percent encode as UTF-8
+  var encoded = encodeURIComponent(str)
+    .replace(ENCODE_URL_ATTR_CHAR_REGEXP, pencode)
+
+  return 'UTF-8\'\'' + encoded
+}
+
+/**
+ * Class for parsed Content-Disposition header for v8 optimization
+ *
+ * @public
+ * @param {string} type
+ * @param {object} parameters
+ * @constructor
+ */
+
+function ContentDisposition (type, parameters) {
+  this.type = type
+  this.parameters = parameters
+}
diff --git a/backend/node_modules/content-disposition/package.json b/backend/node_modules/content-disposition/package.json
new file mode 100644
index 0000000..43c70ce
--- /dev/null
+++ b/backend/node_modules/content-disposition/package.json
@@ -0,0 +1,44 @@
+{
+  "name": "content-disposition",
+  "description": "Create and parse Content-Disposition header",
+  "version": "0.5.4",
+  "author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
+  "license": "MIT",
+  "keywords": [
+    "content-disposition",
+    "http",
+    "rfc6266",
+    "res"
+  ],
+  "repository": "jshttp/content-disposition",
+  "dependencies": {
+    "safe-buffer": "5.2.1"
+  },
+  "devDependencies": {
+    "deep-equal": "1.0.1",
+    "eslint": "7.32.0",
+    "eslint-config-standard": "13.0.1",
+    "eslint-plugin-import": "2.25.3",
+    "eslint-plugin-markdown": "2.2.1",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "5.2.0",
+    "eslint-plugin-standard": "4.1.0",
+    "istanbul": "0.4.5",
+    "mocha": "9.1.3"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "README.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-ci": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/"
+  }
+}
diff --git a/backend/node_modules/content-type/HISTORY.md b/backend/node_modules/content-type/HISTORY.md
new file mode 100644
index 0000000..4583671
--- /dev/null
+++ b/backend/node_modules/content-type/HISTORY.md
@@ -0,0 +1,29 @@
+1.0.5 / 2023-01-29
+==================
+
+  * perf: skip value escaping when unnecessary
+
+1.0.4 / 2017-09-11
+==================
+
+  * perf: skip parameter parsing when no parameters
+
+1.0.3 / 2017-09-10
+==================
+
+  * perf: remove argument reassignment
+
+1.0.2 / 2016-05-09
+==================
+
+  * perf: enable strict mode
+
+1.0.1 / 2015-02-13
+==================
+
+  * Improve missing `Content-Type` header error message
+
+1.0.0 / 2015-02-01
+==================
+
+  * Initial implementation, derived from `media-typer@0.3.0`
diff --git a/backend/node_modules/content-type/LICENSE b/backend/node_modules/content-type/LICENSE
new file mode 100644
index 0000000..34b1a2d
--- /dev/null
+++ b/backend/node_modules/content-type/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2015 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/content-type/README.md b/backend/node_modules/content-type/README.md
new file mode 100644
index 0000000..c1a922a
--- /dev/null
+++ b/backend/node_modules/content-type/README.md
@@ -0,0 +1,94 @@
+# content-type
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-image]][node-url]
+[![Build Status][ci-image]][ci-url]
+[![Coverage Status][coveralls-image]][coveralls-url]
+
+Create and parse HTTP Content-Type header according to RFC 7231
+
+## Installation
+
+```sh
+$ npm install content-type
+```
+
+## API
+
+```js
+var contentType = require('content-type')
+```
+
+### contentType.parse(string)
+
+```js
+var obj = contentType.parse('image/svg+xml; charset=utf-8')
+```
+
+Parse a `Content-Type` header. This will return an object with the following
+properties (examples are shown for the string `'image/svg+xml; charset=utf-8'`):
+
+ - `type`: The media type (the type and subtype, always lower case).
+   Example: `'image/svg+xml'`
+
+ - `parameters`: An object of the parameters in the media type (name of parameter
+   always lower case). Example: `{charset: 'utf-8'}`
+
+Throws a `TypeError` if the string is missing or invalid.
+
+### contentType.parse(req)
+
+```js
+var obj = contentType.parse(req)
+```
+
+Parse the `Content-Type` header from the given `req`. Short-cut for
+`contentType.parse(req.headers['content-type'])`.
+
+Throws a `TypeError` if the `Content-Type` header is missing or invalid.
+
+### contentType.parse(res)
+
+```js
+var obj = contentType.parse(res)
+```
+
+Parse the `Content-Type` header set on the given `res`. Short-cut for
+`contentType.parse(res.getHeader('content-type'))`.
+
+Throws a `TypeError` if the `Content-Type` header is missing or invalid.
+
+### contentType.format(obj)
+
+```js
+var str = contentType.format({
+  type: 'image/svg+xml',
+  parameters: { charset: 'utf-8' }
+})
+```
+
+Format an object into a `Content-Type` header. This will return a string of the
+content type for the given object with the following properties (examples are
+shown that produce the string `'image/svg+xml; charset=utf-8'`):
+
+ - `type`: The media type (will be lower-cased). Example: `'image/svg+xml'`
+
+ - `parameters`: An object of the parameters in the media type (name of the
+   parameter will be lower-cased). Example: `{charset: 'utf-8'}`
+
+Throws a `TypeError` if the object contains an invalid type or parameter names.
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://badgen.net/github/checks/jshttp/content-type/master?label=ci
+[ci-url]: https://github.com/jshttp/content-type/actions/workflows/ci.yml
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/content-type/master
+[coveralls-url]: https://coveralls.io/r/jshttp/content-type?branch=master
+[node-image]: https://badgen.net/npm/node/content-type
+[node-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/content-type
+[npm-url]: https://npmjs.org/package/content-type
+[npm-version-image]: https://badgen.net/npm/v/content-type
diff --git a/backend/node_modules/content-type/index.js b/backend/node_modules/content-type/index.js
new file mode 100644
index 0000000..41840e7
--- /dev/null
+++ b/backend/node_modules/content-type/index.js
@@ -0,0 +1,225 @@
+/*!
+ * content-type
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * RegExp to match *( ";" parameter ) in RFC 7231 sec 3.1.1.1
+ *
+ * parameter     = token "=" ( token / quoted-string )
+ * token         = 1*tchar
+ * tchar         = "!" / "#" / "$" / "%" / "&" / "'" / "*"
+ *               / "+" / "-" / "." / "^" / "_" / "`" / "|" / "~"
+ *               / DIGIT / ALPHA
+ *               ; any VCHAR, except delimiters
+ * quoted-string = DQUOTE *( qdtext / quoted-pair ) DQUOTE
+ * qdtext        = HTAB / SP / %x21 / %x23-5B / %x5D-7E / obs-text
+ * obs-text      = %x80-FF
+ * quoted-pair   = "\" ( HTAB / SP / VCHAR / obs-text )
+ */
+var PARAM_REGEXP = /; *([!#$%&'*+.^_`|~0-9A-Za-z-]+) *= *("(?:[\u000b\u0020\u0021\u0023-\u005b\u005d-\u007e\u0080-\u00ff]|\\[\u000b\u0020-\u00ff])*"|[!#$%&'*+.^_`|~0-9A-Za-z-]+) */g // eslint-disable-line no-control-regex
+var TEXT_REGEXP = /^[\u000b\u0020-\u007e\u0080-\u00ff]+$/ // eslint-disable-line no-control-regex
+var TOKEN_REGEXP = /^[!#$%&'*+.^_`|~0-9A-Za-z-]+$/
+
+/**
+ * RegExp to match quoted-pair in RFC 7230 sec 3.2.6
+ *
+ * quoted-pair = "\" ( HTAB / SP / VCHAR / obs-text )
+ * obs-text    = %x80-FF
+ */
+var QESC_REGEXP = /\\([\u000b\u0020-\u00ff])/g // eslint-disable-line no-control-regex
+
+/**
+ * RegExp to match chars that must be quoted-pair in RFC 7230 sec 3.2.6
+ */
+var QUOTE_REGEXP = /([\\"])/g
+
+/**
+ * RegExp to match type in RFC 7231 sec 3.1.1.1
+ *
+ * media-type = type "/" subtype
+ * type       = token
+ * subtype    = token
+ */
+var TYPE_REGEXP = /^[!#$%&'*+.^_`|~0-9A-Za-z-]+\/[!#$%&'*+.^_`|~0-9A-Za-z-]+$/
+
+/**
+ * Module exports.
+ * @public
+ */
+
+exports.format = format
+exports.parse = parse
+
+/**
+ * Format object to media type.
+ *
+ * @param {object} obj
+ * @return {string}
+ * @public
+ */
+
+function format (obj) {
+  if (!obj || typeof obj !== 'object') {
+    throw new TypeError('argument obj is required')
+  }
+
+  var parameters = obj.parameters
+  var type = obj.type
+
+  if (!type || !TYPE_REGEXP.test(type)) {
+    throw new TypeError('invalid type')
+  }
+
+  var string = type
+
+  // append parameters
+  if (parameters && typeof parameters === 'object') {
+    var param
+    var params = Object.keys(parameters).sort()
+
+    for (var i = 0; i < params.length; i++) {
+      param = params[i]
+
+      if (!TOKEN_REGEXP.test(param)) {
+        throw new TypeError('invalid parameter name')
+      }
+
+      string += '; ' + param + '=' + qstring(parameters[param])
+    }
+  }
+
+  return string
+}
+
+/**
+ * Parse media type to object.
+ *
+ * @param {string|object} string
+ * @return {Object}
+ * @public
+ */
+
+function parse (string) {
+  if (!string) {
+    throw new TypeError('argument string is required')
+  }
+
+  // support req/res-like objects as argument
+  var header = typeof string === 'object'
+    ? getcontenttype(string)
+    : string
+
+  if (typeof header !== 'string') {
+    throw new TypeError('argument string is required to be a string')
+  }
+
+  var index = header.indexOf(';')
+  var type = index !== -1
+    ? header.slice(0, index).trim()
+    : header.trim()
+
+  if (!TYPE_REGEXP.test(type)) {
+    throw new TypeError('invalid media type')
+  }
+
+  var obj = new ContentType(type.toLowerCase())
+
+  // parse parameters
+  if (index !== -1) {
+    var key
+    var match
+    var value
+
+    PARAM_REGEXP.lastIndex = index
+
+    while ((match = PARAM_REGEXP.exec(header))) {
+      if (match.index !== index) {
+        throw new TypeError('invalid parameter format')
+      }
+
+      index += match[0].length
+      key = match[1].toLowerCase()
+      value = match[2]
+
+      if (value.charCodeAt(0) === 0x22 /* " */) {
+        // remove quotes
+        value = value.slice(1, -1)
+
+        // remove escapes
+        if (value.indexOf('\\') !== -1) {
+          value = value.replace(QESC_REGEXP, '$1')
+        }
+      }
+
+      obj.parameters[key] = value
+    }
+
+    if (index !== header.length) {
+      throw new TypeError('invalid parameter format')
+    }
+  }
+
+  return obj
+}
+
+/**
+ * Get content-type from req/res objects.
+ *
+ * @param {object}
+ * @return {Object}
+ * @private
+ */
+
+function getcontenttype (obj) {
+  var header
+
+  if (typeof obj.getHeader === 'function') {
+    // res-like
+    header = obj.getHeader('content-type')
+  } else if (typeof obj.headers === 'object') {
+    // req-like
+    header = obj.headers && obj.headers['content-type']
+  }
+
+  if (typeof header !== 'string') {
+    throw new TypeError('content-type header is missing from object')
+  }
+
+  return header
+}
+
+/**
+ * Quote a string if necessary.
+ *
+ * @param {string} val
+ * @return {string}
+ * @private
+ */
+
+function qstring (val) {
+  var str = String(val)
+
+  // no need to quote tokens
+  if (TOKEN_REGEXP.test(str)) {
+    return str
+  }
+
+  if (str.length > 0 && !TEXT_REGEXP.test(str)) {
+    throw new TypeError('invalid parameter value')
+  }
+
+  return '"' + str.replace(QUOTE_REGEXP, '\\$1') + '"'
+}
+
+/**
+ * Class to represent a content type.
+ * @private
+ */
+function ContentType (type) {
+  this.parameters = Object.create(null)
+  this.type = type
+}
diff --git a/backend/node_modules/content-type/package.json b/backend/node_modules/content-type/package.json
new file mode 100644
index 0000000..9db19f6
--- /dev/null
+++ b/backend/node_modules/content-type/package.json
@@ -0,0 +1,42 @@
+{
+  "name": "content-type",
+  "description": "Create and parse HTTP Content-Type header",
+  "version": "1.0.5",
+  "author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
+  "license": "MIT",
+  "keywords": [
+    "content-type",
+    "http",
+    "req",
+    "res",
+    "rfc7231"
+  ],
+  "repository": "jshttp/content-type",
+  "devDependencies": {
+    "deep-equal": "1.0.1",
+    "eslint": "8.32.0",
+    "eslint-config-standard": "15.0.1",
+    "eslint-plugin-import": "2.27.5",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "6.1.1",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "10.2.0",
+    "nyc": "15.1.0"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "README.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --check-leaks --bail test/",
+    "test-ci": "nyc --reporter=lcovonly --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "version": "node scripts/version-history.js && git add HISTORY.md"
+  }
+}
diff --git a/backend/node_modules/cookie-signature/.npmignore b/backend/node_modules/cookie-signature/.npmignore
new file mode 100644
index 0000000..f1250e5
--- /dev/null
+++ b/backend/node_modules/cookie-signature/.npmignore
@@ -0,0 +1,4 @@
+support
+test
+examples
+*.sock
diff --git a/backend/node_modules/cookie-signature/History.md b/backend/node_modules/cookie-signature/History.md
new file mode 100644
index 0000000..78513cc
--- /dev/null
+++ b/backend/node_modules/cookie-signature/History.md
@@ -0,0 +1,38 @@
+1.0.6 / 2015-02-03
+==================
+
+* use `npm test` instead of `make test` to run tests
+* clearer assertion messages when checking input
+
+
+1.0.5 / 2014-09-05
+==================
+
+* add license to package.json
+
+1.0.4 / 2014-06-25
+==================
+
+ * corrected avoidance of timing attacks (thanks @tenbits!)
+
+1.0.3 / 2014-01-28
+==================
+
+ * [incorrect] fix for timing attacks
+
+1.0.2 / 2014-01-28
+==================
+
+ * fix missing repository warning
+ * fix typo in test
+
+1.0.1 / 2013-04-15
+==================
+
+  * Revert "Changed underlying HMAC algo. to sha512."
+  * Revert "Fix for timing attacks on MAC verification."
+
+0.0.1 / 2010-01-03
+==================
+
+  * Initial release
diff --git a/backend/node_modules/cookie-signature/Readme.md b/backend/node_modules/cookie-signature/Readme.md
new file mode 100644
index 0000000..2559e84
--- /dev/null
+++ b/backend/node_modules/cookie-signature/Readme.md
@@ -0,0 +1,42 @@
+
+# cookie-signature
+
+  Sign and unsign cookies.
+
+## Example
+
+```js
+var cookie = require('cookie-signature');
+
+var val = cookie.sign('hello', 'tobiiscool');
+val.should.equal('hello.DGDUkGlIkCzPz+C0B064FNgHdEjox7ch8tOBGslZ5QI');
+
+var val = cookie.sign('hello', 'tobiiscool');
+cookie.unsign(val, 'tobiiscool').should.equal('hello');
+cookie.unsign(val, 'luna').should.be.false;
+```
+
+## License 
+
+(The MIT License)
+
+Copyright (c) 2012 LearnBoost &lt;tj@learnboost.com&gt;
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
\ No newline at end of file
diff --git a/backend/node_modules/cookie-signature/index.js b/backend/node_modules/cookie-signature/index.js
new file mode 100644
index 0000000..b8c9463
--- /dev/null
+++ b/backend/node_modules/cookie-signature/index.js
@@ -0,0 +1,51 @@
+/**
+ * Module dependencies.
+ */
+
+var crypto = require('crypto');
+
+/**
+ * Sign the given `val` with `secret`.
+ *
+ * @param {String} val
+ * @param {String} secret
+ * @return {String}
+ * @api private
+ */
+
+exports.sign = function(val, secret){
+  if ('string' != typeof val) throw new TypeError("Cookie value must be provided as a string.");
+  if ('string' != typeof secret) throw new TypeError("Secret string must be provided.");
+  return val + '.' + crypto
+    .createHmac('sha256', secret)
+    .update(val)
+    .digest('base64')
+    .replace(/\=+$/, '');
+};
+
+/**
+ * Unsign and decode the given `val` with `secret`,
+ * returning `false` if the signature is invalid.
+ *
+ * @param {String} val
+ * @param {String} secret
+ * @return {String|Boolean}
+ * @api private
+ */
+
+exports.unsign = function(val, secret){
+  if ('string' != typeof val) throw new TypeError("Signed cookie string must be provided.");
+  if ('string' != typeof secret) throw new TypeError("Secret string must be provided.");
+  var str = val.slice(0, val.lastIndexOf('.'))
+    , mac = exports.sign(str, secret);
+  
+  return sha1(mac) == sha1(val) ? str : false;
+};
+
+/**
+ * Private
+ */
+
+function sha1(str){
+  return crypto.createHash('sha1').update(str).digest('hex');
+}
diff --git a/backend/node_modules/cookie-signature/package.json b/backend/node_modules/cookie-signature/package.json
new file mode 100644
index 0000000..29c4498
--- /dev/null
+++ b/backend/node_modules/cookie-signature/package.json
@@ -0,0 +1,18 @@
+{
+  "name": "cookie-signature",
+  "version": "1.0.6",
+  "description": "Sign and unsign cookies",
+  "keywords": ["cookie", "sign", "unsign"],
+  "author": "TJ Holowaychuk <tj@learnboost.com>",
+  "license": "MIT",
+  "repository": { "type": "git", "url": "https://github.com/visionmedia/node-cookie-signature.git"},
+  "dependencies": {},
+  "devDependencies": {
+    "mocha": "*",
+    "should": "*"
+  },
+  "scripts": {
+    "test": "mocha --require should --reporter spec"
+  },
+  "main": "index"
+}
diff --git a/backend/node_modules/cookie/LICENSE b/backend/node_modules/cookie/LICENSE
new file mode 100644
index 0000000..058b6b4
--- /dev/null
+++ b/backend/node_modules/cookie/LICENSE
@@ -0,0 +1,24 @@
+(The MIT License)
+
+Copyright (c) 2012-2014 Roman Shtylman <shtylman@gmail.com>
+Copyright (c) 2015 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
diff --git a/backend/node_modules/cookie/README.md b/backend/node_modules/cookie/README.md
new file mode 100644
index 0000000..71fdac1
--- /dev/null
+++ b/backend/node_modules/cookie/README.md
@@ -0,0 +1,317 @@
+# cookie
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-image]][node-url]
+[![Build Status][ci-image]][ci-url]
+[![Coverage Status][coveralls-image]][coveralls-url]
+
+Basic HTTP cookie parser and serializer for HTTP servers.
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install cookie
+```
+
+## API
+
+```js
+var cookie = require('cookie');
+```
+
+### cookie.parse(str, options)
+
+Parse an HTTP `Cookie` header string and returning an object of all cookie name-value pairs.
+The `str` argument is the string representing a `Cookie` header value and `options` is an
+optional object containing additional parsing options.
+
+```js
+var cookies = cookie.parse('foo=bar; equation=E%3Dmc%5E2');
+// { foo: 'bar', equation: 'E=mc^2' }
+```
+
+#### Options
+
+`cookie.parse` accepts these properties in the options object.
+
+##### decode
+
+Specifies a function that will be used to decode a cookie's value. Since the value of a cookie
+has a limited character set (and must be a simple string), this function can be used to decode
+a previously-encoded cookie value into a JavaScript string or other object.
+
+The default function is the global `decodeURIComponent`, which will decode any URL-encoded
+sequences into their byte representations.
+
+**note** if an error is thrown from this function, the original, non-decoded cookie value will
+be returned as the cookie's value.
+
+### cookie.serialize(name, value, options)
+
+Serialize a cookie name-value pair into a `Set-Cookie` header string. The `name` argument is the
+name for the cookie, the `value` argument is the value to set the cookie to, and the `options`
+argument is an optional object containing additional serialization options.
+
+```js
+var setCookie = cookie.serialize('foo', 'bar');
+// foo=bar
+```
+
+#### Options
+
+`cookie.serialize` accepts these properties in the options object.
+
+##### domain
+
+Specifies the value for the [`Domain` `Set-Cookie` attribute][rfc-6265-5.2.3]. By default, no
+domain is set, and most clients will consider the cookie to apply to only the current domain.
+
+##### encode
+
+Specifies a function that will be used to encode a cookie's value. Since value of a cookie
+has a limited character set (and must be a simple string), this function can be used to encode
+a value into a string suited for a cookie's value.
+
+The default function is the global `encodeURIComponent`, which will encode a JavaScript string
+into UTF-8 byte sequences and then URL-encode any that fall outside of the cookie range.
+
+##### expires
+
+Specifies the `Date` object to be the value for the [`Expires` `Set-Cookie` attribute][rfc-6265-5.2.1].
+By default, no expiration is set, and most clients will consider this a "non-persistent cookie" and
+will delete it on a condition like exiting a web browser application.
+
+**note** the [cookie storage model specification][rfc-6265-5.3] states that if both `expires` and
+`maxAge` are set, then `maxAge` takes precedence, but it is possible not all clients by obey this,
+so if both are set, they should point to the same date and time.
+
+##### httpOnly
+
+Specifies the `boolean` value for the [`HttpOnly` `Set-Cookie` attribute][rfc-6265-5.2.6]. When truthy,
+the `HttpOnly` attribute is set, otherwise it is not. By default, the `HttpOnly` attribute is not set.
+
+**note** be careful when setting this to `true`, as compliant clients will not allow client-side
+JavaScript to see the cookie in `document.cookie`.
+
+##### maxAge
+
+Specifies the `number` (in seconds) to be the value for the [`Max-Age` `Set-Cookie` attribute][rfc-6265-5.2.2].
+The given number will be converted to an integer by rounding down. By default, no maximum age is set.
+
+**note** the [cookie storage model specification][rfc-6265-5.3] states that if both `expires` and
+`maxAge` are set, then `maxAge` takes precedence, but it is possible not all clients by obey this,
+so if both are set, they should point to the same date and time.
+
+##### partitioned
+
+Specifies the `boolean` value for the [`Partitioned` `Set-Cookie`](rfc-cutler-httpbis-partitioned-cookies)
+attribute. When truthy, the `Partitioned` attribute is set, otherwise it is not. By default, the
+`Partitioned` attribute is not set.
+
+**note** This is an attribute that has not yet been fully standardized, and may change in the future.
+This also means many clients may ignore this attribute until they understand it.
+
+More information about can be found in [the proposal](https://github.com/privacycg/CHIPS).
+
+##### path
+
+Specifies the value for the [`Path` `Set-Cookie` attribute][rfc-6265-5.2.4]. By default, the path
+is considered the ["default path"][rfc-6265-5.1.4].
+
+##### priority
+
+Specifies the `string` to be the value for the [`Priority` `Set-Cookie` attribute][rfc-west-cookie-priority-00-4.1].
+
+  - `'low'` will set the `Priority` attribute to `Low`.
+  - `'medium'` will set the `Priority` attribute to `Medium`, the default priority when not set.
+  - `'high'` will set the `Priority` attribute to `High`.
+
+More information about the different priority levels can be found in
+[the specification][rfc-west-cookie-priority-00-4.1].
+
+**note** This is an attribute that has not yet been fully standardized, and may change in the future.
+This also means many clients may ignore this attribute until they understand it.
+
+##### sameSite
+
+Specifies the `boolean` or `string` to be the value for the [`SameSite` `Set-Cookie` attribute][rfc-6265bis-09-5.4.7].
+
+  - `true` will set the `SameSite` attribute to `Strict` for strict same site enforcement.
+  - `false` will not set the `SameSite` attribute.
+  - `'lax'` will set the `SameSite` attribute to `Lax` for lax same site enforcement.
+  - `'none'` will set the `SameSite` attribute to `None` for an explicit cross-site cookie.
+  - `'strict'` will set the `SameSite` attribute to `Strict` for strict same site enforcement.
+
+More information about the different enforcement levels can be found in
+[the specification][rfc-6265bis-09-5.4.7].
+
+**note** This is an attribute that has not yet been fully standardized, and may change in the future.
+This also means many clients may ignore this attribute until they understand it.
+
+##### secure
+
+Specifies the `boolean` value for the [`Secure` `Set-Cookie` attribute][rfc-6265-5.2.5]. When truthy,
+the `Secure` attribute is set, otherwise it is not. By default, the `Secure` attribute is not set.
+
+**note** be careful when setting this to `true`, as compliant clients will not send the cookie back to
+the server in the future if the browser does not have an HTTPS connection.
+
+## Example
+
+The following example uses this module in conjunction with the Node.js core HTTP server
+to prompt a user for their name and display it back on future visits.
+
+```js
+var cookie = require('cookie');
+var escapeHtml = require('escape-html');
+var http = require('http');
+var url = require('url');
+
+function onRequest(req, res) {
+  // Parse the query string
+  var query = url.parse(req.url, true, true).query;
+
+  if (query && query.name) {
+    // Set a new cookie with the name
+    res.setHeader('Set-Cookie', cookie.serialize('name', String(query.name), {
+      httpOnly: true,
+      maxAge: 60 * 60 * 24 * 7 // 1 week
+    }));
+
+    // Redirect back after setting cookie
+    res.statusCode = 302;
+    res.setHeader('Location', req.headers.referer || '/');
+    res.end();
+    return;
+  }
+
+  // Parse the cookies on the request
+  var cookies = cookie.parse(req.headers.cookie || '');
+
+  // Get the visitor name set in the cookie
+  var name = cookies.name;
+
+  res.setHeader('Content-Type', 'text/html; charset=UTF-8');
+
+  if (name) {
+    res.write('<p>Welcome back, <b>' + escapeHtml(name) + '</b>!</p>');
+  } else {
+    res.write('<p>Hello, new visitor!</p>');
+  }
+
+  res.write('<form method="GET">');
+  res.write('<input placeholder="enter your name" name="name"> <input type="submit" value="Set Name">');
+  res.end('</form>');
+}
+
+http.createServer(onRequest).listen(3000);
+```
+
+## Testing
+
+```sh
+$ npm test
+```
+
+## Benchmark
+
+```
+$ npm run bench
+
+> cookie@0.5.0 bench
+> node benchmark/index.js
+
+  node@18.18.2
+  acorn@8.10.0
+  ada@2.6.0
+  ares@1.19.1
+  brotli@1.0.9
+  cldr@43.1
+  icu@73.2
+  llhttp@6.0.11
+  modules@108
+  napi@9
+  nghttp2@1.57.0
+  nghttp3@0.7.0
+  ngtcp2@0.8.1
+  openssl@3.0.10+quic
+  simdutf@3.2.14
+  tz@2023c
+  undici@5.26.3
+  unicode@15.0
+  uv@1.44.2
+  uvwasi@0.0.18
+  v8@10.2.154.26-node.26
+  zlib@1.2.13.1-motley
+
+> node benchmark/parse-top.js
+
+  cookie.parse - top sites
+
+  14 tests completed.
+
+  parse accounts.google.com x 2,588,913 ops/sec ±0.74% (186 runs sampled)
+  parse apple.com           x 2,370,002 ops/sec ±0.69% (186 runs sampled)
+  parse cloudflare.com      x 2,213,102 ops/sec ±0.88% (188 runs sampled)
+  parse docs.google.com     x 2,194,157 ops/sec ±1.03% (184 runs sampled)
+  parse drive.google.com    x 2,265,084 ops/sec ±0.79% (187 runs sampled)
+  parse en.wikipedia.org    x   457,099 ops/sec ±0.81% (186 runs sampled)
+  parse linkedin.com        x   504,407 ops/sec ±0.89% (186 runs sampled)
+  parse maps.google.com     x 1,230,959 ops/sec ±0.98% (186 runs sampled)
+  parse microsoft.com       x   926,294 ops/sec ±0.88% (184 runs sampled)
+  parse play.google.com     x 2,311,338 ops/sec ±0.83% (185 runs sampled)
+  parse support.google.com  x 1,508,850 ops/sec ±0.86% (186 runs sampled)
+  parse www.google.com      x 1,022,582 ops/sec ±1.32% (182 runs sampled)
+  parse youtu.be            x   332,136 ops/sec ±1.02% (185 runs sampled)
+  parse youtube.com         x   323,833 ops/sec ±0.77% (183 runs sampled)
+
+> node benchmark/parse.js
+
+  cookie.parse - generic
+
+  6 tests completed.
+
+  simple      x 3,214,032 ops/sec ±1.61% (183 runs sampled)
+  decode      x   587,237 ops/sec ±1.16% (187 runs sampled)
+  unquote     x 2,954,618 ops/sec ±1.35% (183 runs sampled)
+  duplicates  x   857,008 ops/sec ±0.89% (187 runs sampled)
+  10 cookies  x   292,133 ops/sec ±0.89% (187 runs sampled)
+  100 cookies x    22,610 ops/sec ±0.68% (187 runs sampled)
+```
+
+## References
+
+- [RFC 6265: HTTP State Management Mechanism][rfc-6265]
+- [Same-site Cookies][rfc-6265bis-09-5.4.7]
+
+[rfc-cutler-httpbis-partitioned-cookies]: https://tools.ietf.org/html/draft-cutler-httpbis-partitioned-cookies/
+[rfc-west-cookie-priority-00-4.1]: https://tools.ietf.org/html/draft-west-cookie-priority-00#section-4.1
+[rfc-6265bis-09-5.4.7]: https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-09#section-5.4.7
+[rfc-6265]: https://tools.ietf.org/html/rfc6265
+[rfc-6265-5.1.4]: https://tools.ietf.org/html/rfc6265#section-5.1.4
+[rfc-6265-5.2.1]: https://tools.ietf.org/html/rfc6265#section-5.2.1
+[rfc-6265-5.2.2]: https://tools.ietf.org/html/rfc6265#section-5.2.2
+[rfc-6265-5.2.3]: https://tools.ietf.org/html/rfc6265#section-5.2.3
+[rfc-6265-5.2.4]: https://tools.ietf.org/html/rfc6265#section-5.2.4
+[rfc-6265-5.2.5]: https://tools.ietf.org/html/rfc6265#section-5.2.5
+[rfc-6265-5.2.6]: https://tools.ietf.org/html/rfc6265#section-5.2.6
+[rfc-6265-5.3]: https://tools.ietf.org/html/rfc6265#section-5.3
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://badgen.net/github/checks/jshttp/cookie/master?label=ci
+[ci-url]: https://github.com/jshttp/cookie/actions/workflows/ci.yml
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/cookie/master
+[coveralls-url]: https://coveralls.io/r/jshttp/cookie?branch=master
+[node-image]: https://badgen.net/npm/node/cookie
+[node-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/cookie
+[npm-url]: https://npmjs.org/package/cookie
+[npm-version-image]: https://badgen.net/npm/v/cookie
diff --git a/backend/node_modules/cookie/SECURITY.md b/backend/node_modules/cookie/SECURITY.md
new file mode 100644
index 0000000..fd4a6c5
--- /dev/null
+++ b/backend/node_modules/cookie/SECURITY.md
@@ -0,0 +1,25 @@
+# Security Policies and Procedures
+
+## Reporting a Bug
+
+The `cookie` team and community take all security bugs seriously. Thank
+you for improving the security of the project. We appreciate your efforts and
+responsible disclosure and will make every effort to acknowledge your
+contributions.
+
+Report security bugs by emailing the current owner(s) of `cookie`. This
+information can be found in the npm registry using the command
+`npm owner ls cookie`.
+If unsure or unable to get the information from the above, open an issue
+in the [project issue tracker](https://github.com/jshttp/cookie/issues)
+asking for the current contact information.
+
+To ensure the timely response to your report, please ensure that the entirety
+of the report is contained within the email body and not solely behind a web
+link or an attachment.
+
+At least one owner will acknowledge your email within 48 hours, and will send a
+more detailed response within 48 hours indicating the next steps in handling
+your report. After the initial reply to your report, the owners will
+endeavor to keep you informed of the progress towards a fix and full
+announcement, and may ask for additional information or guidance.
diff --git a/backend/node_modules/cookie/index.js b/backend/node_modules/cookie/index.js
new file mode 100644
index 0000000..51a58cb
--- /dev/null
+++ b/backend/node_modules/cookie/index.js
@@ -0,0 +1,334 @@
+/*!
+ * cookie
+ * Copyright(c) 2012-2014 Roman Shtylman
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module exports.
+ * @public
+ */
+
+exports.parse = parse;
+exports.serialize = serialize;
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var __toString = Object.prototype.toString
+
+/**
+ * RegExp to match cookie-name in RFC 6265 sec 4.1.1
+ * This refers out to the obsoleted definition of token in RFC 2616 sec 2.2
+ * which has been replaced by the token definition in RFC 7230 appendix B.
+ *
+ * cookie-name       = token
+ * token             = 1*tchar
+ * tchar             = "!" / "#" / "$" / "%" / "&" / "'" /
+ *                     "*" / "+" / "-" / "." / "^" / "_" /
+ *                     "`" / "|" / "~" / DIGIT / ALPHA
+ */
+
+var cookieNameRegExp = /^[!#$%&'*+\-.^_`|~0-9A-Za-z]+$/;
+
+/**
+ * RegExp to match cookie-value in RFC 6265 sec 4.1.1
+ *
+ * cookie-value      = *cookie-octet / ( DQUOTE *cookie-octet DQUOTE )
+ * cookie-octet      = %x21 / %x23-2B / %x2D-3A / %x3C-5B / %x5D-7E
+ *                     ; US-ASCII characters excluding CTLs,
+ *                     ; whitespace DQUOTE, comma, semicolon,
+ *                     ; and backslash
+ */
+
+var cookieValueRegExp = /^("?)[\u0021\u0023-\u002B\u002D-\u003A\u003C-\u005B\u005D-\u007E]*\1$/;
+
+/**
+ * RegExp to match domain-value in RFC 6265 sec 4.1.1
+ *
+ * domain-value      = <subdomain>
+ *                     ; defined in [RFC1034], Section 3.5, as
+ *                     ; enhanced by [RFC1123], Section 2.1
+ * <subdomain>       = <label> | <subdomain> "." <label>
+ * <label>           = <let-dig> [ [ <ldh-str> ] <let-dig> ]
+ *                     Labels must be 63 characters or less.
+ *                     'let-dig' not 'letter' in the first char, per RFC1123
+ * <ldh-str>         = <let-dig-hyp> | <let-dig-hyp> <ldh-str>
+ * <let-dig-hyp>     = <let-dig> | "-"
+ * <let-dig>         = <letter> | <digit>
+ * <letter>          = any one of the 52 alphabetic characters A through Z in
+ *                     upper case and a through z in lower case
+ * <digit>           = any one of the ten digits 0 through 9
+ *
+ * Keep support for leading dot: https://github.com/jshttp/cookie/issues/173
+ *
+ * > (Note that a leading %x2E ("."), if present, is ignored even though that
+ * character is not permitted, but a trailing %x2E ("."), if present, will
+ * cause the user agent to ignore the attribute.)
+ */
+
+var domainValueRegExp = /^([.]?[a-z0-9]([a-z0-9-]{0,61}[a-z0-9])?)([.][a-z0-9]([a-z0-9-]{0,61}[a-z0-9])?)*$/i;
+
+/**
+ * RegExp to match path-value in RFC 6265 sec 4.1.1
+ *
+ * path-value        = <any CHAR except CTLs or ";">
+ * CHAR              = %x01-7F
+ *                     ; defined in RFC 5234 appendix B.1
+ */
+
+var pathValueRegExp = /^[\u0020-\u003A\u003D-\u007E]*$/;
+
+/**
+ * Parse a cookie header.
+ *
+ * Parse the given cookie header string into an object
+ * The object has the various cookies as keys(names) => values
+ *
+ * @param {string} str
+ * @param {object} [opt]
+ * @return {object}
+ * @public
+ */
+
+function parse(str, opt) {
+  if (typeof str !== 'string') {
+    throw new TypeError('argument str must be a string');
+  }
+
+  var obj = {};
+  var len = str.length;
+  // RFC 6265 sec 4.1.1, RFC 2616 2.2 defines a cookie name consists of one char minimum, plus '='.
+  if (len < 2) return obj;
+
+  var dec = (opt && opt.decode) || decode;
+  var index = 0;
+  var eqIdx = 0;
+  var endIdx = 0;
+
+  do {
+    eqIdx = str.indexOf('=', index);
+    if (eqIdx === -1) break; // No more cookie pairs.
+
+    endIdx = str.indexOf(';', index);
+
+    if (endIdx === -1) {
+      endIdx = len;
+    } else if (eqIdx > endIdx) {
+      // backtrack on prior semicolon
+      index = str.lastIndexOf(';', eqIdx - 1) + 1;
+      continue;
+    }
+
+    var keyStartIdx = startIndex(str, index, eqIdx);
+    var keyEndIdx = endIndex(str, eqIdx, keyStartIdx);
+    var key = str.slice(keyStartIdx, keyEndIdx);
+
+    // only assign once
+    if (!obj.hasOwnProperty(key)) {
+      var valStartIdx = startIndex(str, eqIdx + 1, endIdx);
+      var valEndIdx = endIndex(str, endIdx, valStartIdx);
+
+      if (str.charCodeAt(valStartIdx) === 0x22 /* " */ && str.charCodeAt(valEndIdx - 1) === 0x22 /* " */) {
+        valStartIdx++;
+        valEndIdx--;
+      }
+
+      var val = str.slice(valStartIdx, valEndIdx);
+      obj[key] = tryDecode(val, dec);
+    }
+
+    index = endIdx + 1
+  } while (index < len);
+
+  return obj;
+}
+
+function startIndex(str, index, max) {
+  do {
+    var code = str.charCodeAt(index);
+    if (code !== 0x20 /*   */ && code !== 0x09 /* \t */) return index;
+  } while (++index < max);
+  return max;
+}
+
+function endIndex(str, index, min) {
+  while (index > min) {
+    var code = str.charCodeAt(--index);
+    if (code !== 0x20 /*   */ && code !== 0x09 /* \t */) return index + 1;
+  }
+  return min;
+}
+
+/**
+ * Serialize data into a cookie header.
+ *
+ * Serialize a name value pair into a cookie string suitable for
+ * http headers. An optional options object specifies cookie parameters.
+ *
+ * serialize('foo', 'bar', { httpOnly: true })
+ *   => "foo=bar; httpOnly"
+ *
+ * @param {string} name
+ * @param {string} val
+ * @param {object} [opt]
+ * @return {string}
+ * @public
+ */
+
+function serialize(name, val, opt) {
+  var enc = (opt && opt.encode) || encodeURIComponent;
+
+  if (typeof enc !== 'function') {
+    throw new TypeError('option encode is invalid');
+  }
+
+  if (!cookieNameRegExp.test(name)) {
+    throw new TypeError('argument name is invalid');
+  }
+
+  var value = enc(val);
+
+  if (!cookieValueRegExp.test(value)) {
+    throw new TypeError('argument val is invalid');
+  }
+
+  var str = name + '=' + value;
+  if (!opt) return str;
+
+  if (null != opt.maxAge) {
+    var maxAge = Math.floor(opt.maxAge);
+
+    if (!isFinite(maxAge)) {
+      throw new TypeError('option maxAge is invalid')
+    }
+
+    str += '; Max-Age=' + maxAge;
+  }
+
+  if (opt.domain) {
+    if (!domainValueRegExp.test(opt.domain)) {
+      throw new TypeError('option domain is invalid');
+    }
+
+    str += '; Domain=' + opt.domain;
+  }
+
+  if (opt.path) {
+    if (!pathValueRegExp.test(opt.path)) {
+      throw new TypeError('option path is invalid');
+    }
+
+    str += '; Path=' + opt.path;
+  }
+
+  if (opt.expires) {
+    var expires = opt.expires
+
+    if (!isDate(expires) || isNaN(expires.valueOf())) {
+      throw new TypeError('option expires is invalid');
+    }
+
+    str += '; Expires=' + expires.toUTCString()
+  }
+
+  if (opt.httpOnly) {
+    str += '; HttpOnly';
+  }
+
+  if (opt.secure) {
+    str += '; Secure';
+  }
+
+  if (opt.partitioned) {
+    str += '; Partitioned'
+  }
+
+  if (opt.priority) {
+    var priority = typeof opt.priority === 'string'
+      ? opt.priority.toLowerCase() : opt.priority;
+
+    switch (priority) {
+      case 'low':
+        str += '; Priority=Low'
+        break
+      case 'medium':
+        str += '; Priority=Medium'
+        break
+      case 'high':
+        str += '; Priority=High'
+        break
+      default:
+        throw new TypeError('option priority is invalid')
+    }
+  }
+
+  if (opt.sameSite) {
+    var sameSite = typeof opt.sameSite === 'string'
+      ? opt.sameSite.toLowerCase() : opt.sameSite;
+
+    switch (sameSite) {
+      case true:
+        str += '; SameSite=Strict';
+        break;
+      case 'lax':
+        str += '; SameSite=Lax';
+        break;
+      case 'strict':
+        str += '; SameSite=Strict';
+        break;
+      case 'none':
+        str += '; SameSite=None';
+        break;
+      default:
+        throw new TypeError('option sameSite is invalid');
+    }
+  }
+
+  return str;
+}
+
+/**
+ * URL-decode string value. Optimized to skip native call when no %.
+ *
+ * @param {string} str
+ * @returns {string}
+ */
+
+function decode (str) {
+  return str.indexOf('%') !== -1
+    ? decodeURIComponent(str)
+    : str
+}
+
+/**
+ * Determine if value is a Date.
+ *
+ * @param {*} val
+ * @private
+ */
+
+function isDate (val) {
+  return __toString.call(val) === '[object Date]';
+}
+
+/**
+ * Try decoding a string using a decoding function.
+ *
+ * @param {string} str
+ * @param {function} decode
+ * @private
+ */
+
+function tryDecode(str, decode) {
+  try {
+    return decode(str);
+  } catch (e) {
+    return str;
+  }
+}
diff --git a/backend/node_modules/cookie/package.json b/backend/node_modules/cookie/package.json
new file mode 100644
index 0000000..f498ea7
--- /dev/null
+++ b/backend/node_modules/cookie/package.json
@@ -0,0 +1,44 @@
+{
+  "name": "cookie",
+  "description": "HTTP server cookie parsing and serialization",
+  "version": "0.7.1",
+  "author": "Roman Shtylman <shtylman@gmail.com>",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>"
+  ],
+  "license": "MIT",
+  "keywords": [
+    "cookie",
+    "cookies"
+  ],
+  "repository": "jshttp/cookie",
+  "devDependencies": {
+    "beautify-benchmark": "0.2.4",
+    "benchmark": "2.1.4",
+    "eslint": "8.53.0",
+    "eslint-plugin-markdown": "3.0.1",
+    "mocha": "10.2.0",
+    "nyc": "15.1.0",
+    "safe-buffer": "5.2.1",
+    "top-sites": "1.1.194"
+  },
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "README.md",
+    "SECURITY.md",
+    "index.js"
+  ],
+  "main": "index.js",
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "bench": "node benchmark/index.js",
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "update-bench": "node scripts/update-benchmark.js"
+  }
+}
diff --git a/backend/node_modules/core-util-is/LICENSE b/backend/node_modules/core-util-is/LICENSE
new file mode 100644
index 0000000..d8d7f94
--- /dev/null
+++ b/backend/node_modules/core-util-is/LICENSE
@@ -0,0 +1,19 @@
+Copyright Node.js contributors. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
diff --git a/backend/node_modules/core-util-is/README.md b/backend/node_modules/core-util-is/README.md
new file mode 100644
index 0000000..5a76b41
--- /dev/null
+++ b/backend/node_modules/core-util-is/README.md
@@ -0,0 +1,3 @@
+# core-util-is
+
+The `util.is*` functions introduced in Node v0.12.
diff --git a/backend/node_modules/core-util-is/lib/util.js b/backend/node_modules/core-util-is/lib/util.js
new file mode 100644
index 0000000..6e5a20d
--- /dev/null
+++ b/backend/node_modules/core-util-is/lib/util.js
@@ -0,0 +1,107 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// NOTE: These type checking functions intentionally don't use `instanceof`
+// because it is fragile and can be easily faked with `Object.create()`.
+
+function isArray(arg) {
+  if (Array.isArray) {
+    return Array.isArray(arg);
+  }
+  return objectToString(arg) === '[object Array]';
+}
+exports.isArray = isArray;
+
+function isBoolean(arg) {
+  return typeof arg === 'boolean';
+}
+exports.isBoolean = isBoolean;
+
+function isNull(arg) {
+  return arg === null;
+}
+exports.isNull = isNull;
+
+function isNullOrUndefined(arg) {
+  return arg == null;
+}
+exports.isNullOrUndefined = isNullOrUndefined;
+
+function isNumber(arg) {
+  return typeof arg === 'number';
+}
+exports.isNumber = isNumber;
+
+function isString(arg) {
+  return typeof arg === 'string';
+}
+exports.isString = isString;
+
+function isSymbol(arg) {
+  return typeof arg === 'symbol';
+}
+exports.isSymbol = isSymbol;
+
+function isUndefined(arg) {
+  return arg === void 0;
+}
+exports.isUndefined = isUndefined;
+
+function isRegExp(re) {
+  return objectToString(re) === '[object RegExp]';
+}
+exports.isRegExp = isRegExp;
+
+function isObject(arg) {
+  return typeof arg === 'object' && arg !== null;
+}
+exports.isObject = isObject;
+
+function isDate(d) {
+  return objectToString(d) === '[object Date]';
+}
+exports.isDate = isDate;
+
+function isError(e) {
+  return (objectToString(e) === '[object Error]' || e instanceof Error);
+}
+exports.isError = isError;
+
+function isFunction(arg) {
+  return typeof arg === 'function';
+}
+exports.isFunction = isFunction;
+
+function isPrimitive(arg) {
+  return arg === null ||
+         typeof arg === 'boolean' ||
+         typeof arg === 'number' ||
+         typeof arg === 'string' ||
+         typeof arg === 'symbol' ||  // ES6 symbol
+         typeof arg === 'undefined';
+}
+exports.isPrimitive = isPrimitive;
+
+exports.isBuffer = require('buffer').Buffer.isBuffer;
+
+function objectToString(o) {
+  return Object.prototype.toString.call(o);
+}
diff --git a/backend/node_modules/core-util-is/package.json b/backend/node_modules/core-util-is/package.json
new file mode 100644
index 0000000..b0c51f5
--- /dev/null
+++ b/backend/node_modules/core-util-is/package.json
@@ -0,0 +1,38 @@
+{
+  "name": "core-util-is",
+  "version": "1.0.3",
+  "description": "The `util.is*` functions introduced in Node v0.12.",
+  "main": "lib/util.js",
+  "files": [
+    "lib"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/isaacs/core-util-is"
+  },
+  "keywords": [
+    "util",
+    "isBuffer",
+    "isArray",
+    "isNumber",
+    "isString",
+    "isRegExp",
+    "isThis",
+    "isThat",
+    "polyfill"
+  ],
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/isaacs/core-util-is/issues"
+  },
+  "scripts": {
+    "test": "tap test.js",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "prepublishOnly": "git push origin --follow-tags"
+  },
+  "devDependencies": {
+    "tap": "^15.0.9"
+  }
+}
diff --git a/backend/node_modules/cors/CONTRIBUTING.md b/backend/node_modules/cors/CONTRIBUTING.md
new file mode 100644
index 0000000..591b09a
--- /dev/null
+++ b/backend/node_modules/cors/CONTRIBUTING.md
@@ -0,0 +1,33 @@
+# contributing to `cors`
+
+CORS is a node.js package for providing a [connect](http://www.senchalabs.org/connect/)/[express](http://expressjs.com/) middleware that can be used to enable [CORS](http://en.wikipedia.org/wiki/Cross-origin_resource_sharing) with various options. Learn more about the project in [the README](README.md).
+
+## The CORS Spec
+
+[http://www.w3.org/TR/cors/](http://www.w3.org/TR/cors/)
+
+## Pull Requests Welcome
+
+* Include `'use strict';` in every javascript file.
+* 2 space indentation.
+* Please run the testing steps below before submitting.
+
+## Testing
+
+```bash
+$ npm install
+$ npm test
+```
+
+## Interactive Testing Harness
+
+[http://node-cors-client.herokuapp.com](http://node-cors-client.herokuapp.com)
+
+Related git repositories:
+
+* [https://github.com/TroyGoode/node-cors-server](https://github.com/TroyGoode/node-cors-server)
+* [https://github.com/TroyGoode/node-cors-client](https://github.com/TroyGoode/node-cors-client)
+
+## License
+
+[MIT License](http://www.opensource.org/licenses/mit-license.php)
diff --git a/backend/node_modules/cors/HISTORY.md b/backend/node_modules/cors/HISTORY.md
new file mode 100644
index 0000000..5762bce
--- /dev/null
+++ b/backend/node_modules/cors/HISTORY.md
@@ -0,0 +1,58 @@
+2.8.5 / 2018-11-04
+==================
+
+  * Fix setting `maxAge` option to `0`
+
+2.8.4 / 2017-07-12
+==================
+
+  * Work-around Safari bug in default pre-flight response
+
+2.8.3 / 2017-03-29
+==================
+
+  * Fix error when options delegate missing `methods` option
+
+2.8.2 / 2017-03-28
+==================
+
+  * Fix error when frozen options are passed
+  * Send "Vary: Origin" when using regular expressions
+  * Send "Vary: Access-Control-Request-Headers" when dynamic `allowedHeaders`
+
+2.8.1 / 2016-09-08
+==================
+
+This release only changed documentation.
+
+2.8.0 / 2016-08-23
+==================
+
+  * Add `optionsSuccessStatus` option
+
+2.7.2 / 2016-08-23
+==================
+
+  * Fix error when Node.js running in strict mode
+
+2.7.1 / 2015-05-28
+==================
+
+  * Move module into expressjs organization
+
+2.7.0 / 2015-05-28
+==================
+
+  * Allow array of matching condition as `origin` option
+  * Allow regular expression as `origin` option
+
+2.6.1 / 2015-05-28
+==================
+
+  * Update `license` in package.json
+
+2.6.0 / 2015-04-27
+==================
+
+  * Add `preflightContinue` option
+  * Fix "Vary: Origin" header added for "*"
diff --git a/backend/node_modules/cors/LICENSE b/backend/node_modules/cors/LICENSE
new file mode 100644
index 0000000..fd10c84
--- /dev/null
+++ b/backend/node_modules/cors/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2013 Troy Goode <troygoode@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/cors/README.md b/backend/node_modules/cors/README.md
new file mode 100644
index 0000000..732b847
--- /dev/null
+++ b/backend/node_modules/cors/README.md
@@ -0,0 +1,243 @@
+# cors
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+CORS is a node.js package for providing a [Connect](http://www.senchalabs.org/connect/)/[Express](http://expressjs.com/) middleware that can be used to enable [CORS](http://en.wikipedia.org/wiki/Cross-origin_resource_sharing) with various options.
+
+**[Follow me (@troygoode) on Twitter!](https://twitter.com/intent/user?screen_name=troygoode)**
+
+* [Installation](#installation)
+* [Usage](#usage)
+  * [Simple Usage](#simple-usage-enable-all-cors-requests)
+  * [Enable CORS for a Single Route](#enable-cors-for-a-single-route)
+  * [Configuring CORS](#configuring-cors)
+  * [Configuring CORS Asynchronously](#configuring-cors-asynchronously)
+  * [Enabling CORS Pre-Flight](#enabling-cors-pre-flight)
+* [Configuration Options](#configuration-options)
+* [Demo](#demo)
+* [License](#license)
+* [Author](#author)
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install cors
+```
+
+## Usage
+
+### Simple Usage (Enable *All* CORS Requests)
+
+```javascript
+var express = require('express')
+var cors = require('cors')
+var app = express()
+
+app.use(cors())
+
+app.get('/products/:id', function (req, res, next) {
+  res.json({msg: 'This is CORS-enabled for all origins!'})
+})
+
+app.listen(80, function () {
+  console.log('CORS-enabled web server listening on port 80')
+})
+```
+
+### Enable CORS for a Single Route
+
+```javascript
+var express = require('express')
+var cors = require('cors')
+var app = express()
+
+app.get('/products/:id', cors(), function (req, res, next) {
+  res.json({msg: 'This is CORS-enabled for a Single Route'})
+})
+
+app.listen(80, function () {
+  console.log('CORS-enabled web server listening on port 80')
+})
+```
+
+### Configuring CORS
+
+```javascript
+var express = require('express')
+var cors = require('cors')
+var app = express()
+
+var corsOptions = {
+  origin: 'http://example.com',
+  optionsSuccessStatus: 200 // some legacy browsers (IE11, various SmartTVs) choke on 204
+}
+
+app.get('/products/:id', cors(corsOptions), function (req, res, next) {
+  res.json({msg: 'This is CORS-enabled for only example.com.'})
+})
+
+app.listen(80, function () {
+  console.log('CORS-enabled web server listening on port 80')
+})
+```
+
+### Configuring CORS w/ Dynamic Origin
+
+```javascript
+var express = require('express')
+var cors = require('cors')
+var app = express()
+
+var whitelist = ['http://example1.com', 'http://example2.com']
+var corsOptions = {
+  origin: function (origin, callback) {
+    if (whitelist.indexOf(origin) !== -1) {
+      callback(null, true)
+    } else {
+      callback(new Error('Not allowed by CORS'))
+    }
+  }
+}
+
+app.get('/products/:id', cors(corsOptions), function (req, res, next) {
+  res.json({msg: 'This is CORS-enabled for a whitelisted domain.'})
+})
+
+app.listen(80, function () {
+  console.log('CORS-enabled web server listening on port 80')
+})
+```
+
+If you do not want to block REST tools or server-to-server requests,
+add a `!origin` check in the origin function like so:
+
+```javascript
+var corsOptions = {
+  origin: function (origin, callback) {
+    if (whitelist.indexOf(origin) !== -1 || !origin) {
+      callback(null, true)
+    } else {
+      callback(new Error('Not allowed by CORS'))
+    }
+  }
+}
+```
+
+### Enabling CORS Pre-Flight
+
+Certain CORS requests are considered 'complex' and require an initial
+`OPTIONS` request (called the "pre-flight request"). An example of a
+'complex' CORS request is one that uses an HTTP verb other than
+GET/HEAD/POST (such as DELETE) or that uses custom headers. To enable
+pre-flighting, you must add a new OPTIONS handler for the route you want
+to support:
+
+```javascript
+var express = require('express')
+var cors = require('cors')
+var app = express()
+
+app.options('/products/:id', cors()) // enable pre-flight request for DELETE request
+app.del('/products/:id', cors(), function (req, res, next) {
+  res.json({msg: 'This is CORS-enabled for all origins!'})
+})
+
+app.listen(80, function () {
+  console.log('CORS-enabled web server listening on port 80')
+})
+```
+
+You can also enable pre-flight across-the-board like so:
+
+```javascript
+app.options('*', cors()) // include before other routes
+```
+
+### Configuring CORS Asynchronously
+
+```javascript
+var express = require('express')
+var cors = require('cors')
+var app = express()
+
+var whitelist = ['http://example1.com', 'http://example2.com']
+var corsOptionsDelegate = function (req, callback) {
+  var corsOptions;
+  if (whitelist.indexOf(req.header('Origin')) !== -1) {
+    corsOptions = { origin: true } // reflect (enable) the requested origin in the CORS response
+  } else {
+    corsOptions = { origin: false } // disable CORS for this request
+  }
+  callback(null, corsOptions) // callback expects two parameters: error and options
+}
+
+app.get('/products/:id', cors(corsOptionsDelegate), function (req, res, next) {
+  res.json({msg: 'This is CORS-enabled for a whitelisted domain.'})
+})
+
+app.listen(80, function () {
+  console.log('CORS-enabled web server listening on port 80')
+})
+```
+
+## Configuration Options
+
+* `origin`: Configures the **Access-Control-Allow-Origin** CORS header. Possible values:
+  - `Boolean` - set `origin` to `true` to reflect the [request origin](http://tools.ietf.org/html/draft-abarth-origin-09), as defined by `req.header('Origin')`, or set it to `false` to disable CORS.
+  - `String` - set `origin` to a specific origin. For example if you set it to `"http://example.com"` only requests from "http://example.com" will be allowed.
+  - `RegExp` - set `origin` to a regular expression pattern which will be used to test the request origin. If it's a match, the request origin will be reflected. For example the pattern `/example\.com$/` will reflect any request that is coming from an origin ending with "example.com".
+  - `Array` - set `origin` to an array of valid origins. Each origin can be a `String` or a `RegExp`. For example `["http://example1.com", /\.example2\.com$/]` will accept any request from "http://example1.com" or from a subdomain of "example2.com".
+  - `Function` - set `origin` to a function implementing some custom logic. The function takes the request origin as the first parameter and a callback (which expects the signature `err [object], allow [bool]`) as the second.
+* `methods`: Configures the **Access-Control-Allow-Methods** CORS header. Expects a comma-delimited string (ex: 'GET,PUT,POST') or an array (ex: `['GET', 'PUT', 'POST']`).
+* `allowedHeaders`: Configures the **Access-Control-Allow-Headers** CORS header. Expects a comma-delimited string (ex: 'Content-Type,Authorization') or an array (ex: `['Content-Type', 'Authorization']`). If not specified, defaults to reflecting the headers specified in the request's **Access-Control-Request-Headers** header.
+* `exposedHeaders`: Configures the **Access-Control-Expose-Headers** CORS header. Expects a comma-delimited string (ex: 'Content-Range,X-Content-Range') or an array (ex: `['Content-Range', 'X-Content-Range']`). If not specified, no custom headers are exposed.
+* `credentials`: Configures the **Access-Control-Allow-Credentials** CORS header. Set to `true` to pass the header, otherwise it is omitted.
+* `maxAge`: Configures the **Access-Control-Max-Age** CORS header. Set to an integer to pass the header, otherwise it is omitted.
+* `preflightContinue`: Pass the CORS preflight response to the next handler.
+* `optionsSuccessStatus`: Provides a status code to use for successful `OPTIONS` requests, since some legacy browsers (IE11, various SmartTVs) choke on `204`.
+
+The default configuration is the equivalent of:
+
+```json
+{
+  "origin": "*",
+  "methods": "GET,HEAD,PUT,PATCH,POST,DELETE",
+  "preflightContinue": false,
+  "optionsSuccessStatus": 204
+}
+```
+
+For details on the effect of each CORS header, read [this](http://www.html5rocks.com/en/tutorials/cors/) article on HTML5 Rocks.
+
+## Demo
+
+A demo that illustrates CORS working (and not working) using jQuery is available here: [http://node-cors-client.herokuapp.com/](http://node-cors-client.herokuapp.com/)
+
+Code for that demo can be found here:
+
+* Client: [https://github.com/TroyGoode/node-cors-client](https://github.com/TroyGoode/node-cors-client)
+* Server: [https://github.com/TroyGoode/node-cors-server](https://github.com/TroyGoode/node-cors-server)
+
+## License
+
+[MIT License](http://www.opensource.org/licenses/mit-license.php)
+
+## Author
+
+[Troy Goode](https://github.com/TroyGoode) ([troygoode@gmail.com](mailto:troygoode@gmail.com))
+
+[coveralls-image]: https://img.shields.io/coveralls/expressjs/cors/master.svg
+[coveralls-url]: https://coveralls.io/r/expressjs/cors?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/cors.svg
+[downloads-url]: https://npmjs.org/package/cors
+[npm-image]: https://img.shields.io/npm/v/cors.svg
+[npm-url]: https://npmjs.org/package/cors
+[travis-image]: https://img.shields.io/travis/expressjs/cors/master.svg
+[travis-url]: https://travis-ci.org/expressjs/cors
diff --git a/backend/node_modules/cors/lib/index.js b/backend/node_modules/cors/lib/index.js
new file mode 100644
index 0000000..5475aec
--- /dev/null
+++ b/backend/node_modules/cors/lib/index.js
@@ -0,0 +1,238 @@
+(function () {
+
+  'use strict';
+
+  var assign = require('object-assign');
+  var vary = require('vary');
+
+  var defaults = {
+    origin: '*',
+    methods: 'GET,HEAD,PUT,PATCH,POST,DELETE',
+    preflightContinue: false,
+    optionsSuccessStatus: 204
+  };
+
+  function isString(s) {
+    return typeof s === 'string' || s instanceof String;
+  }
+
+  function isOriginAllowed(origin, allowedOrigin) {
+    if (Array.isArray(allowedOrigin)) {
+      for (var i = 0; i < allowedOrigin.length; ++i) {
+        if (isOriginAllowed(origin, allowedOrigin[i])) {
+          return true;
+        }
+      }
+      return false;
+    } else if (isString(allowedOrigin)) {
+      return origin === allowedOrigin;
+    } else if (allowedOrigin instanceof RegExp) {
+      return allowedOrigin.test(origin);
+    } else {
+      return !!allowedOrigin;
+    }
+  }
+
+  function configureOrigin(options, req) {
+    var requestOrigin = req.headers.origin,
+      headers = [],
+      isAllowed;
+
+    if (!options.origin || options.origin === '*') {
+      // allow any origin
+      headers.push([{
+        key: 'Access-Control-Allow-Origin',
+        value: '*'
+      }]);
+    } else if (isString(options.origin)) {
+      // fixed origin
+      headers.push([{
+        key: 'Access-Control-Allow-Origin',
+        value: options.origin
+      }]);
+      headers.push([{
+        key: 'Vary',
+        value: 'Origin'
+      }]);
+    } else {
+      isAllowed = isOriginAllowed(requestOrigin, options.origin);
+      // reflect origin
+      headers.push([{
+        key: 'Access-Control-Allow-Origin',
+        value: isAllowed ? requestOrigin : false
+      }]);
+      headers.push([{
+        key: 'Vary',
+        value: 'Origin'
+      }]);
+    }
+
+    return headers;
+  }
+
+  function configureMethods(options) {
+    var methods = options.methods;
+    if (methods.join) {
+      methods = options.methods.join(','); // .methods is an array, so turn it into a string
+    }
+    return {
+      key: 'Access-Control-Allow-Methods',
+      value: methods
+    };
+  }
+
+  function configureCredentials(options) {
+    if (options.credentials === true) {
+      return {
+        key: 'Access-Control-Allow-Credentials',
+        value: 'true'
+      };
+    }
+    return null;
+  }
+
+  function configureAllowedHeaders(options, req) {
+    var allowedHeaders = options.allowedHeaders || options.headers;
+    var headers = [];
+
+    if (!allowedHeaders) {
+      allowedHeaders = req.headers['access-control-request-headers']; // .headers wasn't specified, so reflect the request headers
+      headers.push([{
+        key: 'Vary',
+        value: 'Access-Control-Request-Headers'
+      }]);
+    } else if (allowedHeaders.join) {
+      allowedHeaders = allowedHeaders.join(','); // .headers is an array, so turn it into a string
+    }
+    if (allowedHeaders && allowedHeaders.length) {
+      headers.push([{
+        key: 'Access-Control-Allow-Headers',
+        value: allowedHeaders
+      }]);
+    }
+
+    return headers;
+  }
+
+  function configureExposedHeaders(options) {
+    var headers = options.exposedHeaders;
+    if (!headers) {
+      return null;
+    } else if (headers.join) {
+      headers = headers.join(','); // .headers is an array, so turn it into a string
+    }
+    if (headers && headers.length) {
+      return {
+        key: 'Access-Control-Expose-Headers',
+        value: headers
+      };
+    }
+    return null;
+  }
+
+  function configureMaxAge(options) {
+    var maxAge = (typeof options.maxAge === 'number' || options.maxAge) && options.maxAge.toString()
+    if (maxAge && maxAge.length) {
+      return {
+        key: 'Access-Control-Max-Age',
+        value: maxAge
+      };
+    }
+    return null;
+  }
+
+  function applyHeaders(headers, res) {
+    for (var i = 0, n = headers.length; i < n; i++) {
+      var header = headers[i];
+      if (header) {
+        if (Array.isArray(header)) {
+          applyHeaders(header, res);
+        } else if (header.key === 'Vary' && header.value) {
+          vary(res, header.value);
+        } else if (header.value) {
+          res.setHeader(header.key, header.value);
+        }
+      }
+    }
+  }
+
+  function cors(options, req, res, next) {
+    var headers = [],
+      method = req.method && req.method.toUpperCase && req.method.toUpperCase();
+
+    if (method === 'OPTIONS') {
+      // preflight
+      headers.push(configureOrigin(options, req));
+      headers.push(configureCredentials(options, req));
+      headers.push(configureMethods(options, req));
+      headers.push(configureAllowedHeaders(options, req));
+      headers.push(configureMaxAge(options, req));
+      headers.push(configureExposedHeaders(options, req));
+      applyHeaders(headers, res);
+
+      if (options.preflightContinue) {
+        next();
+      } else {
+        // Safari (and potentially other browsers) need content-length 0,
+        //   for 204 or they just hang waiting for a body
+        res.statusCode = options.optionsSuccessStatus;
+        res.setHeader('Content-Length', '0');
+        res.end();
+      }
+    } else {
+      // actual response
+      headers.push(configureOrigin(options, req));
+      headers.push(configureCredentials(options, req));
+      headers.push(configureExposedHeaders(options, req));
+      applyHeaders(headers, res);
+      next();
+    }
+  }
+
+  function middlewareWrapper(o) {
+    // if options are static (either via defaults or custom options passed in), wrap in a function
+    var optionsCallback = null;
+    if (typeof o === 'function') {
+      optionsCallback = o;
+    } else {
+      optionsCallback = function (req, cb) {
+        cb(null, o);
+      };
+    }
+
+    return function corsMiddleware(req, res, next) {
+      optionsCallback(req, function (err, options) {
+        if (err) {
+          next(err);
+        } else {
+          var corsOptions = assign({}, defaults, options);
+          var originCallback = null;
+          if (corsOptions.origin && typeof corsOptions.origin === 'function') {
+            originCallback = corsOptions.origin;
+          } else if (corsOptions.origin) {
+            originCallback = function (origin, cb) {
+              cb(null, corsOptions.origin);
+            };
+          }
+
+          if (originCallback) {
+            originCallback(req.headers.origin, function (err2, origin) {
+              if (err2 || !origin) {
+                next(err2);
+              } else {
+                corsOptions.origin = origin;
+                cors(corsOptions, req, res, next);
+              }
+            });
+          } else {
+            next();
+          }
+        }
+      });
+    };
+  }
+
+  // can pass either an options hash, an options delegate, or nothing
+  module.exports = middlewareWrapper;
+
+}());
diff --git a/backend/node_modules/cors/package.json b/backend/node_modules/cors/package.json
new file mode 100644
index 0000000..ff37d98
--- /dev/null
+++ b/backend/node_modules/cors/package.json
@@ -0,0 +1,41 @@
+{
+  "name": "cors",
+  "description": "Node.js CORS middleware",
+  "version": "2.8.5",
+  "author": "Troy Goode <troygoode@gmail.com> (https://github.com/troygoode/)",
+  "license": "MIT",
+  "keywords": [
+    "cors",
+    "express",
+    "connect",
+    "middleware"
+  ],
+  "repository": "expressjs/cors",
+  "main": "./lib/index.js",
+  "dependencies": {
+    "object-assign": "^4",
+    "vary": "^1"
+  },
+  "devDependencies": {
+    "after": "0.8.2",
+    "eslint": "2.13.1",
+    "express": "4.16.3",
+    "mocha": "5.2.0",
+    "nyc": "13.1.0",
+    "supertest": "3.3.0"
+  },
+  "files": [
+    "lib/index.js",
+    "CONTRIBUTING.md",
+    "HISTORY.md",
+    "LICENSE",
+    "README.md"
+  ],
+  "engines": {
+    "node": ">= 0.10"
+  },
+  "scripts": {
+    "test": "npm run lint && nyc --reporter=html --reporter=text mocha --require test/support/env",
+    "lint": "eslint lib test"
+  }
+}
diff --git a/backend/node_modules/debug/.coveralls.yml b/backend/node_modules/debug/.coveralls.yml
new file mode 100644
index 0000000..20a7068
--- /dev/null
+++ b/backend/node_modules/debug/.coveralls.yml
@@ -0,0 +1 @@
+repo_token: SIAeZjKYlHK74rbcFvNHMUzjRiMpflxve
diff --git a/backend/node_modules/debug/.eslintrc b/backend/node_modules/debug/.eslintrc
new file mode 100644
index 0000000..8a37ae2
--- /dev/null
+++ b/backend/node_modules/debug/.eslintrc
@@ -0,0 +1,11 @@
+{
+  "env": {
+    "browser": true,
+    "node": true
+  },
+  "rules": {
+    "no-console": 0,
+    "no-empty": [1, { "allowEmptyCatch": true }]
+  },
+  "extends": "eslint:recommended"
+}
diff --git a/backend/node_modules/debug/.npmignore b/backend/node_modules/debug/.npmignore
new file mode 100644
index 0000000..5f60eec
--- /dev/null
+++ b/backend/node_modules/debug/.npmignore
@@ -0,0 +1,9 @@
+support
+test
+examples
+example
+*.sock
+dist
+yarn.lock
+coverage
+bower.json
diff --git a/backend/node_modules/debug/.travis.yml b/backend/node_modules/debug/.travis.yml
new file mode 100644
index 0000000..6c6090c
--- /dev/null
+++ b/backend/node_modules/debug/.travis.yml
@@ -0,0 +1,14 @@
+
+language: node_js
+node_js:
+  - "6"
+  - "5"
+  - "4"
+
+install:
+  - make node_modules
+
+script:
+  - make lint
+  - make test
+  - make coveralls
diff --git a/backend/node_modules/debug/CHANGELOG.md b/backend/node_modules/debug/CHANGELOG.md
new file mode 100644
index 0000000..eadaa18
--- /dev/null
+++ b/backend/node_modules/debug/CHANGELOG.md
@@ -0,0 +1,362 @@
+
+2.6.9 / 2017-09-22
+==================
+
+  * remove ReDoS regexp in %o formatter (#504)
+
+2.6.8 / 2017-05-18
+==================
+
+  * Fix: Check for undefined on browser globals (#462, @marbemac)
+
+2.6.7 / 2017-05-16
+==================
+
+  * Fix: Update ms to 2.0.0 to fix regular expression denial of service vulnerability (#458, @hubdotcom)
+  * Fix: Inline extend function in node implementation (#452, @dougwilson)
+  * Docs: Fix typo (#455, @msasad)
+
+2.6.5 / 2017-04-27
+==================
+  
+  * Fix: null reference check on window.documentElement.style.WebkitAppearance (#447, @thebigredgeek)
+  * Misc: clean up browser reference checks (#447, @thebigredgeek)
+  * Misc: add npm-debug.log to .gitignore (@thebigredgeek)
+
+
+2.6.4 / 2017-04-20
+==================
+
+  * Fix: bug that would occure if process.env.DEBUG is a non-string value. (#444, @LucianBuzzo)
+  * Chore: ignore bower.json in npm installations. (#437, @joaovieira)
+  * Misc: update "ms" to v0.7.3 (@tootallnate)
+
+2.6.3 / 2017-03-13
+==================
+
+  * Fix: Electron reference to `process.env.DEBUG` (#431, @paulcbetts)
+  * Docs: Changelog fix (@thebigredgeek)
+
+2.6.2 / 2017-03-10
+==================
+
+  * Fix: DEBUG_MAX_ARRAY_LENGTH (#420, @slavaGanzin)
+  * Docs: Add backers and sponsors from Open Collective (#422, @piamancini)
+  * Docs: Add Slackin invite badge (@tootallnate)
+
+2.6.1 / 2017-02-10
+==================
+
+  * Fix: Module's `export default` syntax fix for IE8 `Expected identifier` error
+  * Fix: Whitelist DEBUG_FD for values 1 and 2 only (#415, @pi0)
+  * Fix: IE8 "Expected identifier" error (#414, @vgoma)
+  * Fix: Namespaces would not disable once enabled (#409, @musikov)
+
+2.6.0 / 2016-12-28
+==================
+
+  * Fix: added better null pointer checks for browser useColors (@thebigredgeek)
+  * Improvement: removed explicit `window.debug` export (#404, @tootallnate)
+  * Improvement: deprecated `DEBUG_FD` environment variable (#405, @tootallnate)
+
+2.5.2 / 2016-12-25
+==================
+
+  * Fix: reference error on window within webworkers (#393, @KlausTrainer)
+  * Docs: fixed README typo (#391, @lurch)
+  * Docs: added notice about v3 api discussion (@thebigredgeek)
+
+2.5.1 / 2016-12-20
+==================
+
+  * Fix: babel-core compatibility
+
+2.5.0 / 2016-12-20
+==================
+
+  * Fix: wrong reference in bower file (@thebigredgeek)
+  * Fix: webworker compatibility (@thebigredgeek)
+  * Fix: output formatting issue (#388, @kribblo)
+  * Fix: babel-loader compatibility (#383, @escwald)
+  * Misc: removed built asset from repo and publications (@thebigredgeek)
+  * Misc: moved source files to /src (#378, @yamikuronue)
+  * Test: added karma integration and replaced babel with browserify for browser tests (#378, @yamikuronue)
+  * Test: coveralls integration (#378, @yamikuronue)
+  * Docs: simplified language in the opening paragraph (#373, @yamikuronue)
+
+2.4.5 / 2016-12-17
+==================
+
+  * Fix: `navigator` undefined in Rhino (#376, @jochenberger)
+  * Fix: custom log function (#379, @hsiliev)
+  * Improvement: bit of cleanup + linting fixes (@thebigredgeek)
+  * Improvement: rm non-maintainted `dist/` dir (#375, @freewil)
+  * Docs: simplified language in the opening paragraph. (#373, @yamikuronue)
+
+2.4.4 / 2016-12-14
+==================
+
+  * Fix: work around debug being loaded in preload scripts for electron (#368, @paulcbetts)
+
+2.4.3 / 2016-12-14
+==================
+
+  * Fix: navigation.userAgent error for react native (#364, @escwald)
+
+2.4.2 / 2016-12-14
+==================
+
+  * Fix: browser colors (#367, @tootallnate)
+  * Misc: travis ci integration (@thebigredgeek)
+  * Misc: added linting and testing boilerplate with sanity check (@thebigredgeek)
+
+2.4.1 / 2016-12-13
+==================
+
+  * Fix: typo that broke the package (#356)
+
+2.4.0 / 2016-12-13
+==================
+
+  * Fix: bower.json references unbuilt src entry point (#342, @justmatt)
+  * Fix: revert "handle regex special characters" (@tootallnate)
+  * Feature: configurable util.inspect()`options for NodeJS (#327, @tootallnate)
+  * Feature: %O`(big O) pretty-prints objects (#322, @tootallnate)
+  * Improvement: allow colors in workers (#335, @botverse)
+  * Improvement: use same color for same namespace. (#338, @lchenay)
+
+2.3.3 / 2016-11-09
+==================
+
+  * Fix: Catch `JSON.stringify()` errors (#195, Jovan Alleyne)
+  * Fix: Returning `localStorage` saved values (#331, Levi Thomason)
+  * Improvement: Don't create an empty object when no `process` (Nathan Rajlich)
+
+2.3.2 / 2016-11-09
+==================
+
+  * Fix: be super-safe in index.js as well (@TooTallNate)
+  * Fix: should check whether process exists (Tom Newby)
+
+2.3.1 / 2016-11-09
+==================
+
+  * Fix: Added electron compatibility (#324, @paulcbetts)
+  * Improvement: Added performance optimizations (@tootallnate)
+  * Readme: Corrected PowerShell environment variable example (#252, @gimre)
+  * Misc: Removed yarn lock file from source control (#321, @fengmk2)
+
+2.3.0 / 2016-11-07
+==================
+
+  * Fix: Consistent placement of ms diff at end of output (#215, @gorangajic)
+  * Fix: Escaping of regex special characters in namespace strings (#250, @zacronos)
+  * Fix: Fixed bug causing crash on react-native (#282, @vkarpov15)
+  * Feature: Enabled ES6+ compatible import via default export (#212 @bucaran)
+  * Feature: Added %O formatter to reflect Chrome's console.log capability (#279, @oncletom)
+  * Package: Update "ms" to 0.7.2 (#315, @DevSide)
+  * Package: removed superfluous version property from bower.json (#207 @kkirsche)
+  * Readme: fix USE_COLORS to DEBUG_COLORS
+  * Readme: Doc fixes for format string sugar (#269, @mlucool)
+  * Readme: Updated docs for DEBUG_FD and DEBUG_COLORS environment variables (#232, @mattlyons0)
+  * Readme: doc fixes for PowerShell (#271 #243, @exoticknight @unreadable)
+  * Readme: better docs for browser support (#224, @matthewmueller)
+  * Tooling: Added yarn integration for development (#317, @thebigredgeek)
+  * Misc: Renamed History.md to CHANGELOG.md (@thebigredgeek)
+  * Misc: Added license file (#226 #274, @CantemoInternal @sdaitzman)
+  * Misc: Updated contributors (@thebigredgeek)
+
+2.2.0 / 2015-05-09
+==================
+
+  * package: update "ms" to v0.7.1 (#202, @dougwilson)
+  * README: add logging to file example (#193, @DanielOchoa)
+  * README: fixed a typo (#191, @amir-s)
+  * browser: expose `storage` (#190, @stephenmathieson)
+  * Makefile: add a `distclean` target (#189, @stephenmathieson)
+
+2.1.3 / 2015-03-13
+==================
+
+  * Updated stdout/stderr example (#186)
+  * Updated example/stdout.js to match debug current behaviour
+  * Renamed example/stderr.js to stdout.js
+  * Update Readme.md (#184)
+  * replace high intensity foreground color for bold (#182, #183)
+
+2.1.2 / 2015-03-01
+==================
+
+  * dist: recompile
+  * update "ms" to v0.7.0
+  * package: update "browserify" to v9.0.3
+  * component: fix "ms.js" repo location
+  * changed bower package name
+  * updated documentation about using debug in a browser
+  * fix: security error on safari (#167, #168, @yields)
+
+2.1.1 / 2014-12-29
+==================
+
+  * browser: use `typeof` to check for `console` existence
+  * browser: check for `console.log` truthiness (fix IE 8/9)
+  * browser: add support for Chrome apps
+  * Readme: added Windows usage remarks
+  * Add `bower.json` to properly support bower install
+
+2.1.0 / 2014-10-15
+==================
+
+  * node: implement `DEBUG_FD` env variable support
+  * package: update "browserify" to v6.1.0
+  * package: add "license" field to package.json (#135, @panuhorsmalahti)
+
+2.0.0 / 2014-09-01
+==================
+
+  * package: update "browserify" to v5.11.0
+  * node: use stderr rather than stdout for logging (#29, @stephenmathieson)
+
+1.0.4 / 2014-07-15
+==================
+
+  * dist: recompile
+  * example: remove `console.info()` log usage
+  * example: add "Content-Type" UTF-8 header to browser example
+  * browser: place %c marker after the space character
+  * browser: reset the "content" color via `color: inherit`
+  * browser: add colors support for Firefox >= v31
+  * debug: prefer an instance `log()` function over the global one (#119)
+  * Readme: update documentation about styled console logs for FF v31 (#116, @wryk)
+
+1.0.3 / 2014-07-09
+==================
+
+  * Add support for multiple wildcards in namespaces (#122, @seegno)
+  * browser: fix lint
+
+1.0.2 / 2014-06-10
+==================
+
+  * browser: update color palette (#113, @gscottolson)
+  * common: make console logging function configurable (#108, @timoxley)
+  * node: fix %o colors on old node <= 0.8.x
+  * Makefile: find node path using shell/which (#109, @timoxley)
+
+1.0.1 / 2014-06-06
+==================
+
+  * browser: use `removeItem()` to clear localStorage
+  * browser, node: don't set DEBUG if namespaces is undefined (#107, @leedm777)
+  * package: add "contributors" section
+  * node: fix comment typo
+  * README: list authors
+
+1.0.0 / 2014-06-04
+==================
+
+  * make ms diff be global, not be scope
+  * debug: ignore empty strings in enable()
+  * node: make DEBUG_COLORS able to disable coloring
+  * *: export the `colors` array
+  * npmignore: don't publish the `dist` dir
+  * Makefile: refactor to use browserify
+  * package: add "browserify" as a dev dependency
+  * Readme: add Web Inspector Colors section
+  * node: reset terminal color for the debug content
+  * node: map "%o" to `util.inspect()`
+  * browser: map "%j" to `JSON.stringify()`
+  * debug: add custom "formatters"
+  * debug: use "ms" module for humanizing the diff
+  * Readme: add "bash" syntax highlighting
+  * browser: add Firebug color support
+  * browser: add colors for WebKit browsers
+  * node: apply log to `console`
+  * rewrite: abstract common logic for Node & browsers
+  * add .jshintrc file
+
+0.8.1 / 2014-04-14
+==================
+
+  * package: re-add the "component" section
+
+0.8.0 / 2014-03-30
+==================
+
+  * add `enable()` method for nodejs. Closes #27
+  * change from stderr to stdout
+  * remove unnecessary index.js file
+
+0.7.4 / 2013-11-13
+==================
+
+  * remove "browserify" key from package.json (fixes something in browserify)
+
+0.7.3 / 2013-10-30
+==================
+
+  * fix: catch localStorage security error when cookies are blocked (Chrome)
+  * add debug(err) support. Closes #46
+  * add .browser prop to package.json. Closes #42
+
+0.7.2 / 2013-02-06
+==================
+
+  * fix package.json
+  * fix: Mobile Safari (private mode) is broken with debug
+  * fix: Use unicode to send escape character to shell instead of octal to work with strict mode javascript
+
+0.7.1 / 2013-02-05
+==================
+
+  * add repository URL to package.json
+  * add DEBUG_COLORED to force colored output
+  * add browserify support
+  * fix component. Closes #24
+
+0.7.0 / 2012-05-04
+==================
+
+  * Added .component to package.json
+  * Added debug.component.js build
+
+0.6.0 / 2012-03-16
+==================
+
+  * Added support for "-" prefix in DEBUG [Vinay Pulim]
+  * Added `.enabled` flag to the node version [TooTallNate]
+
+0.5.0 / 2012-02-02
+==================
+
+  * Added: humanize diffs. Closes #8
+  * Added `debug.disable()` to the CS variant
+  * Removed padding. Closes #10
+  * Fixed: persist client-side variant again. Closes #9
+
+0.4.0 / 2012-02-01
+==================
+
+  * Added browser variant support for older browsers [TooTallNate]
+  * Added `debug.enable('project:*')` to browser variant [TooTallNate]
+  * Added padding to diff (moved it to the right)
+
+0.3.0 / 2012-01-26
+==================
+
+  * Added millisecond diff when isatty, otherwise UTC string
+
+0.2.0 / 2012-01-22
+==================
+
+  * Added wildcard support
+
+0.1.0 / 2011-12-02
+==================
+
+  * Added: remove colors unless stderr isatty [TooTallNate]
+
+0.0.1 / 2010-01-03
+==================
+
+  * Initial release
diff --git a/backend/node_modules/debug/LICENSE b/backend/node_modules/debug/LICENSE
new file mode 100644
index 0000000..658c933
--- /dev/null
+++ b/backend/node_modules/debug/LICENSE
@@ -0,0 +1,19 @@
+(The MIT License)
+
+Copyright (c) 2014 TJ Holowaychuk <tj@vision-media.ca>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
+and associated documentation files (the 'Software'), to deal in the Software without restriction, 
+including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, 
+and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial 
+portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT 
+LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
diff --git a/backend/node_modules/debug/Makefile b/backend/node_modules/debug/Makefile
new file mode 100644
index 0000000..584da8b
--- /dev/null
+++ b/backend/node_modules/debug/Makefile
@@ -0,0 +1,50 @@
+# get Makefile directory name: http://stackoverflow.com/a/5982798/376773
+THIS_MAKEFILE_PATH:=$(word $(words $(MAKEFILE_LIST)),$(MAKEFILE_LIST))
+THIS_DIR:=$(shell cd $(dir $(THIS_MAKEFILE_PATH));pwd)
+
+# BIN directory
+BIN := $(THIS_DIR)/node_modules/.bin
+
+# Path
+PATH := node_modules/.bin:$(PATH)
+SHELL := /bin/bash
+
+# applications
+NODE ?= $(shell which node)
+YARN ?= $(shell which yarn)
+PKG ?= $(if $(YARN),$(YARN),$(NODE) $(shell which npm))
+BROWSERIFY ?= $(NODE) $(BIN)/browserify
+
+.FORCE:
+
+install: node_modules
+
+node_modules: package.json
+	@NODE_ENV= $(PKG) install
+	@touch node_modules
+
+lint: .FORCE
+	eslint browser.js debug.js index.js node.js
+
+test-node: .FORCE
+	istanbul cover node_modules/mocha/bin/_mocha -- test/**.js
+
+test-browser: .FORCE
+	mkdir -p dist
+
+	@$(BROWSERIFY) \
+		--standalone debug \
+		. > dist/debug.js
+
+	karma start --single-run
+	rimraf dist
+
+test: .FORCE
+	concurrently \
+		"make test-node" \
+		"make test-browser"
+
+coveralls:
+	cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js
+
+.PHONY: all install clean distclean
diff --git a/backend/node_modules/debug/README.md b/backend/node_modules/debug/README.md
new file mode 100644
index 0000000..f67be6b
--- /dev/null
+++ b/backend/node_modules/debug/README.md
@@ -0,0 +1,312 @@
+# debug
+[![Build Status](https://travis-ci.org/visionmedia/debug.svg?branch=master)](https://travis-ci.org/visionmedia/debug)  [![Coverage Status](https://coveralls.io/repos/github/visionmedia/debug/badge.svg?branch=master)](https://coveralls.io/github/visionmedia/debug?branch=master)  [![Slack](https://visionmedia-community-slackin.now.sh/badge.svg)](https://visionmedia-community-slackin.now.sh/) [![OpenCollective](https://opencollective.com/debug/backers/badge.svg)](#backers) 
+[![OpenCollective](https://opencollective.com/debug/sponsors/badge.svg)](#sponsors)
+
+
+
+A tiny node.js debugging utility modelled after node core's debugging technique.
+
+**Discussion around the V3 API is under way [here](https://github.com/visionmedia/debug/issues/370)**
+
+## Installation
+
+```bash
+$ npm install debug
+```
+
+## Usage
+
+`debug` exposes a function; simply pass this function the name of your module, and it will return a decorated version of `console.error` for you to pass debug statements to. This will allow you to toggle the debug output for different parts of your module as well as the module as a whole.
+
+Example _app.js_:
+
+```js
+var debug = require('debug')('http')
+  , http = require('http')
+  , name = 'My App';
+
+// fake app
+
+debug('booting %s', name);
+
+http.createServer(function(req, res){
+  debug(req.method + ' ' + req.url);
+  res.end('hello\n');
+}).listen(3000, function(){
+  debug('listening');
+});
+
+// fake worker of some kind
+
+require('./worker');
+```
+
+Example _worker.js_:
+
+```js
+var debug = require('debug')('worker');
+
+setInterval(function(){
+  debug('doing some work');
+}, 1000);
+```
+
+ The __DEBUG__ environment variable is then used to enable these based on space or comma-delimited names. Here are some examples:
+
+  ![debug http and worker](http://f.cl.ly/items/18471z1H402O24072r1J/Screenshot.png)
+
+  ![debug worker](http://f.cl.ly/items/1X413v1a3M0d3C2c1E0i/Screenshot.png)
+
+#### Windows note
+
+ On Windows the environment variable is set using the `set` command.
+
+ ```cmd
+ set DEBUG=*,-not_this
+ ```
+
+ Note that PowerShell uses different syntax to set environment variables.
+
+ ```cmd
+ $env:DEBUG = "*,-not_this"
+  ```
+
+Then, run the program to be debugged as usual.
+
+## Millisecond diff
+
+  When actively developing an application it can be useful to see when the time spent between one `debug()` call and the next. Suppose for example you invoke `debug()` before requesting a resource, and after as well, the "+NNNms" will show you how much time was spent between calls.
+
+  ![](http://f.cl.ly/items/2i3h1d3t121M2Z1A3Q0N/Screenshot.png)
+
+  When stdout is not a TTY, `Date#toUTCString()` is used, making it more useful for logging the debug information as shown below:
+
+  ![](http://f.cl.ly/items/112H3i0e0o0P0a2Q2r11/Screenshot.png)
+
+## Conventions
+
+  If you're using this in one or more of your libraries, you _should_ use the name of your library so that developers may toggle debugging as desired without guessing names. If you have more than one debuggers you _should_ prefix them with your library name and use ":" to separate features. For example "bodyParser" from Connect would then be "connect:bodyParser".
+
+## Wildcards
+
+  The `*` character may be used as a wildcard. Suppose for example your library has debuggers named "connect:bodyParser", "connect:compress", "connect:session", instead of listing all three with `DEBUG=connect:bodyParser,connect:compress,connect:session`, you may simply do `DEBUG=connect:*`, or to run everything using this module simply use `DEBUG=*`.
+
+  You can also exclude specific debuggers by prefixing them with a "-" character.  For example, `DEBUG=*,-connect:*` would include all debuggers except those starting with "connect:".
+
+## Environment Variables
+
+  When running through Node.js, you can set a few environment variables that will
+  change the behavior of the debug logging:
+
+| Name      | Purpose                                         |
+|-----------|-------------------------------------------------|
+| `DEBUG`   | Enables/disables specific debugging namespaces. |
+| `DEBUG_COLORS`| Whether or not to use colors in the debug output. |
+| `DEBUG_DEPTH` | Object inspection depth. |
+| `DEBUG_SHOW_HIDDEN` | Shows hidden properties on inspected objects. |
+
+
+  __Note:__ The environment variables beginning with `DEBUG_` end up being
+  converted into an Options object that gets used with `%o`/`%O` formatters.
+  See the Node.js documentation for
+  [`util.inspect()`](https://nodejs.org/api/util.html#util_util_inspect_object_options)
+  for the complete list.
+
+## Formatters
+
+
+  Debug uses [printf-style](https://wikipedia.org/wiki/Printf_format_string) formatting. Below are the officially supported formatters:
+
+| Formatter | Representation |
+|-----------|----------------|
+| `%O`      | Pretty-print an Object on multiple lines. |
+| `%o`      | Pretty-print an Object all on a single line. |
+| `%s`      | String. |
+| `%d`      | Number (both integer and float). |
+| `%j`      | JSON. Replaced with the string '[Circular]' if the argument contains circular references. |
+| `%%`      | Single percent sign ('%'). This does not consume an argument. |
+
+### Custom formatters
+
+  You can add custom formatters by extending the `debug.formatters` object. For example, if you wanted to add support for rendering a Buffer as hex with `%h`, you could do something like:
+
+```js
+const createDebug = require('debug')
+createDebug.formatters.h = (v) => {
+  return v.toString('hex')
+}
+
+// …elsewhere
+const debug = createDebug('foo')
+debug('this is hex: %h', new Buffer('hello world'))
+//   foo this is hex: 68656c6c6f20776f726c6421 +0ms
+```
+
+## Browser support
+  You can build a browser-ready script using [browserify](https://github.com/substack/node-browserify),
+  or just use the [browserify-as-a-service](https://wzrd.in/) [build](https://wzrd.in/standalone/debug@latest),
+  if you don't want to build it yourself.
+
+  Debug's enable state is currently persisted by `localStorage`.
+  Consider the situation shown below where you have `worker:a` and `worker:b`,
+  and wish to debug both. You can enable this using `localStorage.debug`:
+
+```js
+localStorage.debug = 'worker:*'
+```
+
+And then refresh the page.
+
+```js
+a = debug('worker:a');
+b = debug('worker:b');
+
+setInterval(function(){
+  a('doing some work');
+}, 1000);
+
+setInterval(function(){
+  b('doing some work');
+}, 1200);
+```
+
+#### Web Inspector Colors
+
+  Colors are also enabled on "Web Inspectors" that understand the `%c` formatting
+  option. These are WebKit web inspectors, Firefox ([since version
+  31](https://hacks.mozilla.org/2014/05/editable-box-model-multiple-selection-sublime-text-keys-much-more-firefox-developer-tools-episode-31/))
+  and the Firebug plugin for Firefox (any version).
+
+  Colored output looks something like:
+
+  ![](https://cloud.githubusercontent.com/assets/71256/3139768/b98c5fd8-e8ef-11e3-862a-f7253b6f47c6.png)
+
+
+## Output streams
+
+  By default `debug` will log to stderr, however this can be configured per-namespace by overriding the `log` method:
+
+Example _stdout.js_:
+
+```js
+var debug = require('debug');
+var error = debug('app:error');
+
+// by default stderr is used
+error('goes to stderr!');
+
+var log = debug('app:log');
+// set this namespace to log via console.log
+log.log = console.log.bind(console); // don't forget to bind to console!
+log('goes to stdout');
+error('still goes to stderr!');
+
+// set all output to go via console.info
+// overrides all per-namespace log settings
+debug.log = console.info.bind(console);
+error('now goes to stdout via console.info');
+log('still goes to stdout, but via console.info now');
+```
+
+
+## Authors
+
+ - TJ Holowaychuk
+ - Nathan Rajlich
+ - Andrew Rhyne
+ 
+## Backers
+
+Support us with a monthly donation and help us continue our activities. [[Become a backer](https://opencollective.com/debug#backer)]
+
+<a href="https://opencollective.com/debug/backer/0/website" target="_blank"><img src="https://opencollective.com/debug/backer/0/avatar.svg"></a>
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+
+
+## Sponsors
+
+Become a sponsor and get your logo on our README on Github with a link to your site. [[Become a sponsor](https://opencollective.com/debug#sponsor)]
+
+<a href="https://opencollective.com/debug/sponsor/0/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/0/avatar.svg"></a>
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+<a href="https://opencollective.com/debug/sponsor/26/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/26/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/27/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/27/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/28/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/28/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/29/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/29/avatar.svg"></a>
+
+## License
+
+(The MIT License)
+
+Copyright (c) 2014-2016 TJ Holowaychuk &lt;tj@vision-media.ca&gt;
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/debug/component.json b/backend/node_modules/debug/component.json
new file mode 100644
index 0000000..9de2641
--- /dev/null
+++ b/backend/node_modules/debug/component.json
@@ -0,0 +1,19 @@
+{
+  "name": "debug",
+  "repo": "visionmedia/debug",
+  "description": "small debugging utility",
+  "version": "2.6.9",
+  "keywords": [
+    "debug",
+    "log",
+    "debugger"
+  ],
+  "main": "src/browser.js",
+  "scripts": [
+    "src/browser.js",
+    "src/debug.js"
+  ],
+  "dependencies": {
+    "rauchg/ms.js": "0.7.1"
+  }
+}
diff --git a/backend/node_modules/debug/karma.conf.js b/backend/node_modules/debug/karma.conf.js
new file mode 100644
index 0000000..103a82d
--- /dev/null
+++ b/backend/node_modules/debug/karma.conf.js
@@ -0,0 +1,70 @@
+// Karma configuration
+// Generated on Fri Dec 16 2016 13:09:51 GMT+0000 (UTC)
+
+module.exports = function(config) {
+  config.set({
+
+    // base path that will be used to resolve all patterns (eg. files, exclude)
+    basePath: '',
+
+
+    // frameworks to use
+    // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
+    frameworks: ['mocha', 'chai', 'sinon'],
+
+
+    // list of files / patterns to load in the browser
+    files: [
+      'dist/debug.js',
+      'test/*spec.js'
+    ],
+
+
+    // list of files to exclude
+    exclude: [
+      'src/node.js'
+    ],
+
+
+    // preprocess matching files before serving them to the browser
+    // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
+    preprocessors: {
+    },
+
+    // test results reporter to use
+    // possible values: 'dots', 'progress'
+    // available reporters: https://npmjs.org/browse/keyword/karma-reporter
+    reporters: ['progress'],
+
+
+    // web server port
+    port: 9876,
+
+
+    // enable / disable colors in the output (reporters and logs)
+    colors: true,
+
+
+    // level of logging
+    // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
+    logLevel: config.LOG_INFO,
+
+
+    // enable / disable watching file and executing tests whenever any file changes
+    autoWatch: true,
+
+
+    // start these browsers
+    // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
+    browsers: ['PhantomJS'],
+
+
+    // Continuous Integration mode
+    // if true, Karma captures browsers, runs the tests and exits
+    singleRun: false,
+
+    // Concurrency level
+    // how many browser should be started simultaneous
+    concurrency: Infinity
+  })
+}
diff --git a/backend/node_modules/debug/node.js b/backend/node_modules/debug/node.js
new file mode 100644
index 0000000..7fc36fe
--- /dev/null
+++ b/backend/node_modules/debug/node.js
@@ -0,0 +1 @@
+module.exports = require('./src/node');
diff --git a/backend/node_modules/debug/package.json b/backend/node_modules/debug/package.json
new file mode 100644
index 0000000..dc787ba
--- /dev/null
+++ b/backend/node_modules/debug/package.json
@@ -0,0 +1,49 @@
+{
+  "name": "debug",
+  "version": "2.6.9",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/visionmedia/debug.git"
+  },
+  "description": "small debugging utility",
+  "keywords": [
+    "debug",
+    "log",
+    "debugger"
+  ],
+  "author": "TJ Holowaychuk <tj@vision-media.ca>",
+  "contributors": [
+    "Nathan Rajlich <nathan@tootallnate.net> (http://n8.io)",
+    "Andrew Rhyne <rhyneandrew@gmail.com>"
+  ],
+  "license": "MIT",
+  "dependencies": {
+    "ms": "2.0.0"
+  },
+  "devDependencies": {
+    "browserify": "9.0.3",
+    "chai": "^3.5.0",
+    "concurrently": "^3.1.0",
+    "coveralls": "^2.11.15",
+    "eslint": "^3.12.1",
+    "istanbul": "^0.4.5",
+    "karma": "^1.3.0",
+    "karma-chai": "^0.1.0",
+    "karma-mocha": "^1.3.0",
+    "karma-phantomjs-launcher": "^1.0.2",
+    "karma-sinon": "^1.0.5",
+    "mocha": "^3.2.0",
+    "mocha-lcov-reporter": "^1.2.0",
+    "rimraf": "^2.5.4",
+    "sinon": "^1.17.6",
+    "sinon-chai": "^2.8.0"
+  },
+  "main": "./src/index.js",
+  "browser": "./src/browser.js",
+  "component": {
+    "scripts": {
+      "debug/index.js": "browser.js",
+      "debug/debug.js": "debug.js"
+    }
+  }
+}
diff --git a/backend/node_modules/debug/src/browser.js b/backend/node_modules/debug/src/browser.js
new file mode 100644
index 0000000..7106924
--- /dev/null
+++ b/backend/node_modules/debug/src/browser.js
@@ -0,0 +1,185 @@
+/**
+ * This is the web browser implementation of `debug()`.
+ *
+ * Expose `debug()` as the module.
+ */
+
+exports = module.exports = require('./debug');
+exports.log = log;
+exports.formatArgs = formatArgs;
+exports.save = save;
+exports.load = load;
+exports.useColors = useColors;
+exports.storage = 'undefined' != typeof chrome
+               && 'undefined' != typeof chrome.storage
+                  ? chrome.storage.local
+                  : localstorage();
+
+/**
+ * Colors.
+ */
+
+exports.colors = [
+  'lightseagreen',
+  'forestgreen',
+  'goldenrod',
+  'dodgerblue',
+  'darkorchid',
+  'crimson'
+];
+
+/**
+ * Currently only WebKit-based Web Inspectors, Firefox >= v31,
+ * and the Firebug extension (any Firefox version) are known
+ * to support "%c" CSS customizations.
+ *
+ * TODO: add a `localStorage` variable to explicitly enable/disable colors
+ */
+
+function useColors() {
+  // NB: In an Electron preload script, document will be defined but not fully
+  // initialized. Since we know we're in Chrome, we'll just detect this case
+  // explicitly
+  if (typeof window !== 'undefined' && window.process && window.process.type === 'renderer') {
+    return true;
+  }
+
+  // is webkit? http://stackoverflow.com/a/16459606/376773
+  // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
+  return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||
+    // is firebug? http://stackoverflow.com/a/398120/376773
+    (typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||
+    // is firefox >= v31?
+    // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
+    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||
+    // double check webkit in userAgent just in case we are in a worker
+    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/));
+}
+
+/**
+ * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
+ */
+
+exports.formatters.j = function(v) {
+  try {
+    return JSON.stringify(v);
+  } catch (err) {
+    return '[UnexpectedJSONParseError]: ' + err.message;
+  }
+};
+
+
+/**
+ * Colorize log arguments if enabled.
+ *
+ * @api public
+ */
+
+function formatArgs(args) {
+  var useColors = this.useColors;
+
+  args[0] = (useColors ? '%c' : '')
+    + this.namespace
+    + (useColors ? ' %c' : ' ')
+    + args[0]
+    + (useColors ? '%c ' : ' ')
+    + '+' + exports.humanize(this.diff);
+
+  if (!useColors) return;
+
+  var c = 'color: ' + this.color;
+  args.splice(1, 0, c, 'color: inherit')
+
+  // the final "%c" is somewhat tricky, because there could be other
+  // arguments passed either before or after the %c, so we need to
+  // figure out the correct index to insert the CSS into
+  var index = 0;
+  var lastC = 0;
+  args[0].replace(/%[a-zA-Z%]/g, function(match) {
+    if ('%%' === match) return;
+    index++;
+    if ('%c' === match) {
+      // we only are interested in the *last* %c
+      // (the user may have provided their own)
+      lastC = index;
+    }
+  });
+
+  args.splice(lastC, 0, c);
+}
+
+/**
+ * Invokes `console.log()` when available.
+ * No-op when `console.log` is not a "function".
+ *
+ * @api public
+ */
+
+function log() {
+  // this hackery is required for IE8/9, where
+  // the `console.log` function doesn't have 'apply'
+  return 'object' === typeof console
+    && console.log
+    && Function.prototype.apply.call(console.log, console, arguments);
+}
+
+/**
+ * Save `namespaces`.
+ *
+ * @param {String} namespaces
+ * @api private
+ */
+
+function save(namespaces) {
+  try {
+    if (null == namespaces) {
+      exports.storage.removeItem('debug');
+    } else {
+      exports.storage.debug = namespaces;
+    }
+  } catch(e) {}
+}
+
+/**
+ * Load `namespaces`.
+ *
+ * @return {String} returns the previously persisted debug modes
+ * @api private
+ */
+
+function load() {
+  var r;
+  try {
+    r = exports.storage.debug;
+  } catch(e) {}
+
+  // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
+  if (!r && typeof process !== 'undefined' && 'env' in process) {
+    r = process.env.DEBUG;
+  }
+
+  return r;
+}
+
+/**
+ * Enable namespaces listed in `localStorage.debug` initially.
+ */
+
+exports.enable(load());
+
+/**
+ * Localstorage attempts to return the localstorage.
+ *
+ * This is necessary because safari throws
+ * when a user disables cookies/localstorage
+ * and you attempt to access it.
+ *
+ * @return {LocalStorage}
+ * @api private
+ */
+
+function localstorage() {
+  try {
+    return window.localStorage;
+  } catch (e) {}
+}
diff --git a/backend/node_modules/debug/src/debug.js b/backend/node_modules/debug/src/debug.js
new file mode 100644
index 0000000..6a5e3fc
--- /dev/null
+++ b/backend/node_modules/debug/src/debug.js
@@ -0,0 +1,202 @@
+
+/**
+ * This is the common logic for both the Node.js and web browser
+ * implementations of `debug()`.
+ *
+ * Expose `debug()` as the module.
+ */
+
+exports = module.exports = createDebug.debug = createDebug['default'] = createDebug;
+exports.coerce = coerce;
+exports.disable = disable;
+exports.enable = enable;
+exports.enabled = enabled;
+exports.humanize = require('ms');
+
+/**
+ * The currently active debug mode names, and names to skip.
+ */
+
+exports.names = [];
+exports.skips = [];
+
+/**
+ * Map of special "%n" handling functions, for the debug "format" argument.
+ *
+ * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
+ */
+
+exports.formatters = {};
+
+/**
+ * Previous log timestamp.
+ */
+
+var prevTime;
+
+/**
+ * Select a color.
+ * @param {String} namespace
+ * @return {Number}
+ * @api private
+ */
+
+function selectColor(namespace) {
+  var hash = 0, i;
+
+  for (i in namespace) {
+    hash  = ((hash << 5) - hash) + namespace.charCodeAt(i);
+    hash |= 0; // Convert to 32bit integer
+  }
+
+  return exports.colors[Math.abs(hash) % exports.colors.length];
+}
+
+/**
+ * Create a debugger with the given `namespace`.
+ *
+ * @param {String} namespace
+ * @return {Function}
+ * @api public
+ */
+
+function createDebug(namespace) {
+
+  function debug() {
+    // disabled?
+    if (!debug.enabled) return;
+
+    var self = debug;
+
+    // set `diff` timestamp
+    var curr = +new Date();
+    var ms = curr - (prevTime || curr);
+    self.diff = ms;
+    self.prev = prevTime;
+    self.curr = curr;
+    prevTime = curr;
+
+    // turn the `arguments` into a proper Array
+    var args = new Array(arguments.length);
+    for (var i = 0; i < args.length; i++) {
+      args[i] = arguments[i];
+    }
+
+    args[0] = exports.coerce(args[0]);
+
+    if ('string' !== typeof args[0]) {
+      // anything else let's inspect with %O
+      args.unshift('%O');
+    }
+
+    // apply any `formatters` transformations
+    var index = 0;
+    args[0] = args[0].replace(/%([a-zA-Z%])/g, function(match, format) {
+      // if we encounter an escaped % then don't increase the array index
+      if (match === '%%') return match;
+      index++;
+      var formatter = exports.formatters[format];
+      if ('function' === typeof formatter) {
+        var val = args[index];
+        match = formatter.call(self, val);
+
+        // now we need to remove `args[index]` since it's inlined in the `format`
+        args.splice(index, 1);
+        index--;
+      }
+      return match;
+    });
+
+    // apply env-specific formatting (colors, etc.)
+    exports.formatArgs.call(self, args);
+
+    var logFn = debug.log || exports.log || console.log.bind(console);
+    logFn.apply(self, args);
+  }
+
+  debug.namespace = namespace;
+  debug.enabled = exports.enabled(namespace);
+  debug.useColors = exports.useColors();
+  debug.color = selectColor(namespace);
+
+  // env-specific initialization logic for debug instances
+  if ('function' === typeof exports.init) {
+    exports.init(debug);
+  }
+
+  return debug;
+}
+
+/**
+ * Enables a debug mode by namespaces. This can include modes
+ * separated by a colon and wildcards.
+ *
+ * @param {String} namespaces
+ * @api public
+ */
+
+function enable(namespaces) {
+  exports.save(namespaces);
+
+  exports.names = [];
+  exports.skips = [];
+
+  var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
+  var len = split.length;
+
+  for (var i = 0; i < len; i++) {
+    if (!split[i]) continue; // ignore empty strings
+    namespaces = split[i].replace(/\*/g, '.*?');
+    if (namespaces[0] === '-') {
+      exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
+    } else {
+      exports.names.push(new RegExp('^' + namespaces + '$'));
+    }
+  }
+}
+
+/**
+ * Disable debug output.
+ *
+ * @api public
+ */
+
+function disable() {
+  exports.enable('');
+}
+
+/**
+ * Returns true if the given mode name is enabled, false otherwise.
+ *
+ * @param {String} name
+ * @return {Boolean}
+ * @api public
+ */
+
+function enabled(name) {
+  var i, len;
+  for (i = 0, len = exports.skips.length; i < len; i++) {
+    if (exports.skips[i].test(name)) {
+      return false;
+    }
+  }
+  for (i = 0, len = exports.names.length; i < len; i++) {
+    if (exports.names[i].test(name)) {
+      return true;
+    }
+  }
+  return false;
+}
+
+/**
+ * Coerce `val`.
+ *
+ * @param {Mixed} val
+ * @return {Mixed}
+ * @api private
+ */
+
+function coerce(val) {
+  if (val instanceof Error) return val.stack || val.message;
+  return val;
+}
diff --git a/backend/node_modules/debug/src/index.js b/backend/node_modules/debug/src/index.js
new file mode 100644
index 0000000..e12cf4d
--- /dev/null
+++ b/backend/node_modules/debug/src/index.js
@@ -0,0 +1,10 @@
+/**
+ * Detect Electron renderer process, which is node, but we should
+ * treat as a browser.
+ */
+
+if (typeof process !== 'undefined' && process.type === 'renderer') {
+  module.exports = require('./browser.js');
+} else {
+  module.exports = require('./node.js');
+}
diff --git a/backend/node_modules/debug/src/inspector-log.js b/backend/node_modules/debug/src/inspector-log.js
new file mode 100644
index 0000000..60ea6c0
--- /dev/null
+++ b/backend/node_modules/debug/src/inspector-log.js
@@ -0,0 +1,15 @@
+module.exports = inspectorLog;
+
+// black hole
+const nullStream = new (require('stream').Writable)();
+nullStream._write = () => {};
+
+/**
+ * Outputs a `console.log()` to the Node.js Inspector console *only*.
+ */
+function inspectorLog() {
+  const stdout = console._stdout;
+  console._stdout = nullStream;
+  console.log.apply(console, arguments);
+  console._stdout = stdout;
+}
diff --git a/backend/node_modules/debug/src/node.js b/backend/node_modules/debug/src/node.js
new file mode 100644
index 0000000..b15109c
--- /dev/null
+++ b/backend/node_modules/debug/src/node.js
@@ -0,0 +1,248 @@
+/**
+ * Module dependencies.
+ */
+
+var tty = require('tty');
+var util = require('util');
+
+/**
+ * This is the Node.js implementation of `debug()`.
+ *
+ * Expose `debug()` as the module.
+ */
+
+exports = module.exports = require('./debug');
+exports.init = init;
+exports.log = log;
+exports.formatArgs = formatArgs;
+exports.save = save;
+exports.load = load;
+exports.useColors = useColors;
+
+/**
+ * Colors.
+ */
+
+exports.colors = [6, 2, 3, 4, 5, 1];
+
+/**
+ * Build up the default `inspectOpts` object from the environment variables.
+ *
+ *   $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js
+ */
+
+exports.inspectOpts = Object.keys(process.env).filter(function (key) {
+  return /^debug_/i.test(key);
+}).reduce(function (obj, key) {
+  // camel-case
+  var prop = key
+    .substring(6)
+    .toLowerCase()
+    .replace(/_([a-z])/g, function (_, k) { return k.toUpperCase() });
+
+  // coerce string value into JS value
+  var val = process.env[key];
+  if (/^(yes|on|true|enabled)$/i.test(val)) val = true;
+  else if (/^(no|off|false|disabled)$/i.test(val)) val = false;
+  else if (val === 'null') val = null;
+  else val = Number(val);
+
+  obj[prop] = val;
+  return obj;
+}, {});
+
+/**
+ * The file descriptor to write the `debug()` calls to.
+ * Set the `DEBUG_FD` env variable to override with another value. i.e.:
+ *
+ *   $ DEBUG_FD=3 node script.js 3>debug.log
+ */
+
+var fd = parseInt(process.env.DEBUG_FD, 10) || 2;
+
+if (1 !== fd && 2 !== fd) {
+  util.deprecate(function(){}, 'except for stderr(2) and stdout(1), any other usage of DEBUG_FD is deprecated. Override debug.log if you want to use a different log function (https://git.io/debug_fd)')()
+}
+
+var stream = 1 === fd ? process.stdout :
+             2 === fd ? process.stderr :
+             createWritableStdioStream(fd);
+
+/**
+ * Is stdout a TTY? Colored output is enabled when `true`.
+ */
+
+function useColors() {
+  return 'colors' in exports.inspectOpts
+    ? Boolean(exports.inspectOpts.colors)
+    : tty.isatty(fd);
+}
+
+/**
+ * Map %o to `util.inspect()`, all on a single line.
+ */
+
+exports.formatters.o = function(v) {
+  this.inspectOpts.colors = this.useColors;
+  return util.inspect(v, this.inspectOpts)
+    .split('\n').map(function(str) {
+      return str.trim()
+    }).join(' ');
+};
+
+/**
+ * Map %o to `util.inspect()`, allowing multiple lines if needed.
+ */
+
+exports.formatters.O = function(v) {
+  this.inspectOpts.colors = this.useColors;
+  return util.inspect(v, this.inspectOpts);
+};
+
+/**
+ * Adds ANSI color escape codes if enabled.
+ *
+ * @api public
+ */
+
+function formatArgs(args) {
+  var name = this.namespace;
+  var useColors = this.useColors;
+
+  if (useColors) {
+    var c = this.color;
+    var prefix = '  \u001b[3' + c + ';1m' + name + ' ' + '\u001b[0m';
+
+    args[0] = prefix + args[0].split('\n').join('\n' + prefix);
+    args.push('\u001b[3' + c + 'm+' + exports.humanize(this.diff) + '\u001b[0m');
+  } else {
+    args[0] = new Date().toUTCString()
+      + ' ' + name + ' ' + args[0];
+  }
+}
+
+/**
+ * Invokes `util.format()` with the specified arguments and writes to `stream`.
+ */
+
+function log() {
+  return stream.write(util.format.apply(util, arguments) + '\n');
+}
+
+/**
+ * Save `namespaces`.
+ *
+ * @param {String} namespaces
+ * @api private
+ */
+
+function save(namespaces) {
+  if (null == namespaces) {
+    // If you set a process.env field to null or undefined, it gets cast to the
+    // string 'null' or 'undefined'. Just delete instead.
+    delete process.env.DEBUG;
+  } else {
+    process.env.DEBUG = namespaces;
+  }
+}
+
+/**
+ * Load `namespaces`.
+ *
+ * @return {String} returns the previously persisted debug modes
+ * @api private
+ */
+
+function load() {
+  return process.env.DEBUG;
+}
+
+/**
+ * Copied from `node/src/node.js`.
+ *
+ * XXX: It's lame that node doesn't expose this API out-of-the-box. It also
+ * relies on the undocumented `tty_wrap.guessHandleType()` which is also lame.
+ */
+
+function createWritableStdioStream (fd) {
+  var stream;
+  var tty_wrap = process.binding('tty_wrap');
+
+  // Note stream._type is used for test-module-load-list.js
+
+  switch (tty_wrap.guessHandleType(fd)) {
+    case 'TTY':
+      stream = new tty.WriteStream(fd);
+      stream._type = 'tty';
+
+      // Hack to have stream not keep the event loop alive.
+      // See https://github.com/joyent/node/issues/1726
+      if (stream._handle && stream._handle.unref) {
+        stream._handle.unref();
+      }
+      break;
+
+    case 'FILE':
+      var fs = require('fs');
+      stream = new fs.SyncWriteStream(fd, { autoClose: false });
+      stream._type = 'fs';
+      break;
+
+    case 'PIPE':
+    case 'TCP':
+      var net = require('net');
+      stream = new net.Socket({
+        fd: fd,
+        readable: false,
+        writable: true
+      });
+
+      // FIXME Should probably have an option in net.Socket to create a
+      // stream from an existing fd which is writable only. But for now
+      // we'll just add this hack and set the `readable` member to false.
+      // Test: ./node test/fixtures/echo.js < /etc/passwd
+      stream.readable = false;
+      stream.read = null;
+      stream._type = 'pipe';
+
+      // FIXME Hack to have stream not keep the event loop alive.
+      // See https://github.com/joyent/node/issues/1726
+      if (stream._handle && stream._handle.unref) {
+        stream._handle.unref();
+      }
+      break;
+
+    default:
+      // Probably an error on in uv_guess_handle()
+      throw new Error('Implement me. Unknown stream file type!');
+  }
+
+  // For supporting legacy API we put the FD here.
+  stream.fd = fd;
+
+  stream._isStdio = true;
+
+  return stream;
+}
+
+/**
+ * Init logic for `debug` instances.
+ *
+ * Create a new `inspectOpts` object in case `useColors` is set
+ * differently for a particular `debug` instance.
+ */
+
+function init (debug) {
+  debug.inspectOpts = {};
+
+  var keys = Object.keys(exports.inspectOpts);
+  for (var i = 0; i < keys.length; i++) {
+    debug.inspectOpts[keys[i]] = exports.inspectOpts[keys[i]];
+  }
+}
+
+/**
+ * Enable namespaces listed in `process.env.DEBUG` initially.
+ */
+
+exports.enable(load());
diff --git a/backend/node_modules/delayed-stream/.npmignore b/backend/node_modules/delayed-stream/.npmignore
new file mode 100644
index 0000000..9daeafb
--- /dev/null
+++ b/backend/node_modules/delayed-stream/.npmignore
@@ -0,0 +1 @@
+test
diff --git a/backend/node_modules/delayed-stream/License b/backend/node_modules/delayed-stream/License
new file mode 100644
index 0000000..4804b7a
--- /dev/null
+++ b/backend/node_modules/delayed-stream/License
@@ -0,0 +1,19 @@
+Copyright (c) 2011 Debuggable Limited <felix@debuggable.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/delayed-stream/Makefile b/backend/node_modules/delayed-stream/Makefile
new file mode 100644
index 0000000..b4ff85a
--- /dev/null
+++ b/backend/node_modules/delayed-stream/Makefile
@@ -0,0 +1,7 @@
+SHELL := /bin/bash
+
+test:
+	@./test/run.js
+
+.PHONY: test
+
diff --git a/backend/node_modules/delayed-stream/Readme.md b/backend/node_modules/delayed-stream/Readme.md
new file mode 100644
index 0000000..aca36f9
--- /dev/null
+++ b/backend/node_modules/delayed-stream/Readme.md
@@ -0,0 +1,141 @@
+# delayed-stream
+
+Buffers events from a stream until you are ready to handle them.
+
+## Installation
+
+``` bash
+npm install delayed-stream
+```
+
+## Usage
+
+The following example shows how to write a http echo server that delays its
+response by 1000 ms.
+
+``` javascript
+var DelayedStream = require('delayed-stream');
+var http = require('http');
+
+http.createServer(function(req, res) {
+  var delayed = DelayedStream.create(req);
+
+  setTimeout(function() {
+    res.writeHead(200);
+    delayed.pipe(res);
+  }, 1000);
+});
+```
+
+If you are not using `Stream#pipe`, you can also manually release the buffered
+events by calling `delayedStream.resume()`:
+
+``` javascript
+var delayed = DelayedStream.create(req);
+
+setTimeout(function() {
+  // Emit all buffered events and resume underlaying source
+  delayed.resume();
+}, 1000);
+```
+
+## Implementation
+
+In order to use this meta stream properly, here are a few things you should
+know about the implementation.
+
+### Event Buffering / Proxying
+
+All events of the `source` stream are hijacked by overwriting the `source.emit`
+method. Until node implements a catch-all event listener, this is the only way.
+
+However, delayed-stream still continues to emit all events it captures on the
+`source`, regardless of whether you have released the delayed stream yet or
+not.
+
+Upon creation, delayed-stream captures all `source` events and stores them in
+an internal event buffer. Once `delayedStream.release()` is called, all
+buffered events are emitted on the `delayedStream`, and the event buffer is
+cleared. After that, delayed-stream merely acts as a proxy for the underlaying
+source.
+
+### Error handling
+
+Error events on `source` are buffered / proxied just like any other events.
+However, `delayedStream.create` attaches a no-op `'error'` listener to the
+`source`. This way you only have to handle errors on the `delayedStream`
+object, rather than in two places.
+
+### Buffer limits
+
+delayed-stream provides a `maxDataSize` property that can be used to limit
+the amount of data being buffered. In order to protect you from bad `source`
+streams that don't react to `source.pause()`, this feature is enabled by
+default.
+
+## API
+
+### DelayedStream.create(source, [options])
+
+Returns a new `delayedStream`. Available options are:
+
+* `pauseStream`
+* `maxDataSize`
+
+The description for those properties can be found below.
+
+### delayedStream.source
+
+The `source` stream managed by this object. This is useful if you are
+passing your `delayedStream` around, and you still want to access properties
+on the `source` object.
+
+### delayedStream.pauseStream = true
+
+Whether to pause the underlaying `source` when calling
+`DelayedStream.create()`. Modifying this property afterwards has no effect.
+
+### delayedStream.maxDataSize = 1024 * 1024
+
+The amount of data to buffer before emitting an `error`.
+
+If the underlaying source is emitting `Buffer` objects, the `maxDataSize`
+refers to bytes.
+
+If the underlaying source is emitting JavaScript strings, the size refers to
+characters.
+
+If you know what you are doing, you can set this property to `Infinity` to
+disable this feature. You can also modify this property during runtime.
+
+### delayedStream.dataSize = 0
+
+The amount of data buffered so far.
+
+### delayedStream.readable
+
+An ECMA5 getter that returns the value of `source.readable`.
+
+### delayedStream.resume()
+
+If the `delayedStream` has not been released so far, `delayedStream.release()`
+is called.
+
+In either case, `source.resume()` is called.
+
+### delayedStream.pause()
+
+Calls `source.pause()`.
+
+### delayedStream.pipe(dest)
+
+Calls `delayedStream.resume()` and then proxies the arguments to `source.pipe`.
+
+### delayedStream.release()
+
+Emits and clears all events that have been buffered up so far. This does not
+resume the underlaying source, use `delayedStream.resume()` instead.
+
+## License
+
+delayed-stream is licensed under the MIT license.
diff --git a/backend/node_modules/delayed-stream/lib/delayed_stream.js b/backend/node_modules/delayed-stream/lib/delayed_stream.js
new file mode 100644
index 0000000..b38fc85
--- /dev/null
+++ b/backend/node_modules/delayed-stream/lib/delayed_stream.js
@@ -0,0 +1,107 @@
+var Stream = require('stream').Stream;
+var util = require('util');
+
+module.exports = DelayedStream;
+function DelayedStream() {
+  this.source = null;
+  this.dataSize = 0;
+  this.maxDataSize = 1024 * 1024;
+  this.pauseStream = true;
+
+  this._maxDataSizeExceeded = false;
+  this._released = false;
+  this._bufferedEvents = [];
+}
+util.inherits(DelayedStream, Stream);
+
+DelayedStream.create = function(source, options) {
+  var delayedStream = new this();
+
+  options = options || {};
+  for (var option in options) {
+    delayedStream[option] = options[option];
+  }
+
+  delayedStream.source = source;
+
+  var realEmit = source.emit;
+  source.emit = function() {
+    delayedStream._handleEmit(arguments);
+    return realEmit.apply(source, arguments);
+  };
+
+  source.on('error', function() {});
+  if (delayedStream.pauseStream) {
+    source.pause();
+  }
+
+  return delayedStream;
+};
+
+Object.defineProperty(DelayedStream.prototype, 'readable', {
+  configurable: true,
+  enumerable: true,
+  get: function() {
+    return this.source.readable;
+  }
+});
+
+DelayedStream.prototype.setEncoding = function() {
+  return this.source.setEncoding.apply(this.source, arguments);
+};
+
+DelayedStream.prototype.resume = function() {
+  if (!this._released) {
+    this.release();
+  }
+
+  this.source.resume();
+};
+
+DelayedStream.prototype.pause = function() {
+  this.source.pause();
+};
+
+DelayedStream.prototype.release = function() {
+  this._released = true;
+
+  this._bufferedEvents.forEach(function(args) {
+    this.emit.apply(this, args);
+  }.bind(this));
+  this._bufferedEvents = [];
+};
+
+DelayedStream.prototype.pipe = function() {
+  var r = Stream.prototype.pipe.apply(this, arguments);
+  this.resume();
+  return r;
+};
+
+DelayedStream.prototype._handleEmit = function(args) {
+  if (this._released) {
+    this.emit.apply(this, args);
+    return;
+  }
+
+  if (args[0] === 'data') {
+    this.dataSize += args[1].length;
+    this._checkIfMaxDataSizeExceeded();
+  }
+
+  this._bufferedEvents.push(args);
+};
+
+DelayedStream.prototype._checkIfMaxDataSizeExceeded = function() {
+  if (this._maxDataSizeExceeded) {
+    return;
+  }
+
+  if (this.dataSize <= this.maxDataSize) {
+    return;
+  }
+
+  this._maxDataSizeExceeded = true;
+  var message =
+    'DelayedStream#maxDataSize of ' + this.maxDataSize + ' bytes exceeded.'
+  this.emit('error', new Error(message));
+};
diff --git a/backend/node_modules/delayed-stream/package.json b/backend/node_modules/delayed-stream/package.json
new file mode 100644
index 0000000..eea3291
--- /dev/null
+++ b/backend/node_modules/delayed-stream/package.json
@@ -0,0 +1,27 @@
+{
+  "author": "Felix Geisendörfer <felix@debuggable.com> (http://debuggable.com/)",
+  "contributors": [
+    "Mike Atkins <apeherder@gmail.com>"
+  ],
+  "name": "delayed-stream",
+  "description": "Buffers events from a stream until you are ready to handle them.",
+  "license": "MIT",
+  "version": "1.0.0",
+  "homepage": "https://github.com/felixge/node-delayed-stream",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/felixge/node-delayed-stream.git"
+  },
+  "main": "./lib/delayed_stream",
+  "engines": {
+    "node": ">=0.4.0"
+  },
+  "scripts": {
+    "test": "make test"
+  },
+  "dependencies": {},
+  "devDependencies": {
+    "fake": "0.2.0",
+    "far": "0.0.1"
+  }
+}
diff --git a/backend/node_modules/depd/History.md b/backend/node_modules/depd/History.md
new file mode 100644
index 0000000..cd9ebaa
--- /dev/null
+++ b/backend/node_modules/depd/History.md
@@ -0,0 +1,103 @@
+2.0.0 / 2018-10-26
+==================
+
+  * Drop support for Node.js 0.6
+  * Replace internal `eval` usage with `Function` constructor
+  * Use instance methods on `process` to check for listeners
+
+1.1.2 / 2018-01-11
+==================
+
+  * perf: remove argument reassignment
+  * Support Node.js 0.6 to 9.x
+
+1.1.1 / 2017-07-27
+==================
+
+  * Remove unnecessary `Buffer` loading
+  * Support Node.js 0.6 to 8.x
+
+1.1.0 / 2015-09-14
+==================
+
+  * Enable strict mode in more places
+  * Support io.js 3.x
+  * Support io.js 2.x
+  * Support web browser loading
+    - Requires bundler like Browserify or webpack
+
+1.0.1 / 2015-04-07
+==================
+
+  * Fix `TypeError`s when under `'use strict'` code
+  * Fix useless type name on auto-generated messages
+  * Support io.js 1.x
+  * Support Node.js 0.12
+
+1.0.0 / 2014-09-17
+==================
+
+  * No changes
+
+0.4.5 / 2014-09-09
+==================
+
+  * Improve call speed to functions using the function wrapper
+  * Support Node.js 0.6
+
+0.4.4 / 2014-07-27
+==================
+
+  * Work-around v8 generating empty stack traces
+
+0.4.3 / 2014-07-26
+==================
+
+  * Fix exception when global `Error.stackTraceLimit` is too low
+
+0.4.2 / 2014-07-19
+==================
+
+  * Correct call site for wrapped functions and properties
+
+0.4.1 / 2014-07-19
+==================
+
+  * Improve automatic message generation for function properties
+
+0.4.0 / 2014-07-19
+==================
+
+  * Add `TRACE_DEPRECATION` environment variable
+  * Remove non-standard grey color from color output
+  * Support `--no-deprecation` argument
+  * Support `--trace-deprecation` argument
+  * Support `deprecate.property(fn, prop, message)`
+
+0.3.0 / 2014-06-16
+==================
+
+  * Add `NO_DEPRECATION` environment variable
+
+0.2.0 / 2014-06-15
+==================
+
+  * Add `deprecate.property(obj, prop, message)`
+  * Remove `supports-color` dependency for node.js 0.8
+
+0.1.0 / 2014-06-15
+==================
+
+  * Add `deprecate.function(fn, message)`
+  * Add `process.on('deprecation', fn)` emitter
+  * Automatically generate message when omitted from `deprecate()`
+
+0.0.1 / 2014-06-15
+==================
+
+  * Fix warning for dynamic calls at singe call site
+
+0.0.0 / 2014-06-15
+==================
+
+  * Initial implementation
diff --git a/backend/node_modules/depd/LICENSE b/backend/node_modules/depd/LICENSE
new file mode 100644
index 0000000..248de7a
--- /dev/null
+++ b/backend/node_modules/depd/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2014-2018 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/depd/Readme.md b/backend/node_modules/depd/Readme.md
new file mode 100644
index 0000000..043d1ca
--- /dev/null
+++ b/backend/node_modules/depd/Readme.md
@@ -0,0 +1,280 @@
+# depd
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-image]][node-url]
+[![Linux Build][travis-image]][travis-url]
+[![Windows Build][appveyor-image]][appveyor-url]
+[![Coverage Status][coveralls-image]][coveralls-url]
+
+Deprecate all the things
+
+> With great modules comes great responsibility; mark things deprecated!
+
+## Install
+
+This module is installed directly using `npm`:
+
+```sh
+$ npm install depd
+```
+
+This module can also be bundled with systems like
+[Browserify](http://browserify.org/) or [webpack](https://webpack.github.io/),
+though by default this module will alter it's API to no longer display or
+track deprecations.
+
+## API
+
+<!-- eslint-disable no-unused-vars -->
+
+```js
+var deprecate = require('depd')('my-module')
+```
+
+This library allows you to display deprecation messages to your users.
+This library goes above and beyond with deprecation warnings by
+introspection of the call stack (but only the bits that it is interested
+in).
+
+Instead of just warning on the first invocation of a deprecated
+function and never again, this module will warn on the first invocation
+of a deprecated function per unique call site, making it ideal to alert
+users of all deprecated uses across the code base, rather than just
+whatever happens to execute first.
+
+The deprecation warnings from this module also include the file and line
+information for the call into the module that the deprecated function was
+in.
+
+**NOTE** this library has a similar interface to the `debug` module, and
+this module uses the calling file to get the boundary for the call stacks,
+so you should always create a new `deprecate` object in each file and not
+within some central file.
+
+### depd(namespace)
+
+Create a new deprecate function that uses the given namespace name in the
+messages and will display the call site prior to the stack entering the
+file this function was called from. It is highly suggested you use the
+name of your module as the namespace.
+
+### deprecate(message)
+
+Call this function from deprecated code to display a deprecation message.
+This message will appear once per unique caller site. Caller site is the
+first call site in the stack in a different file from the caller of this
+function.
+
+If the message is omitted, a message is generated for you based on the site
+of the `deprecate()` call and will display the name of the function called,
+similar to the name displayed in a stack trace.
+
+### deprecate.function(fn, message)
+
+Call this function to wrap a given function in a deprecation message on any
+call to the function. An optional message can be supplied to provide a custom
+message.
+
+### deprecate.property(obj, prop, message)
+
+Call this function to wrap a given property on object in a deprecation message
+on any accessing or setting of the property. An optional message can be supplied
+to provide a custom message.
+
+The method must be called on the object where the property belongs (not
+inherited from the prototype).
+
+If the property is a data descriptor, it will be converted to an accessor
+descriptor in order to display the deprecation message.
+
+### process.on('deprecation', fn)
+
+This module will allow easy capturing of deprecation errors by emitting the
+errors as the type "deprecation" on the global `process`. If there are no
+listeners for this type, the errors are written to STDERR as normal, but if
+there are any listeners, nothing will be written to STDERR and instead only
+emitted. From there, you can write the errors in a different format or to a
+logging source.
+
+The error represents the deprecation and is emitted only once with the same
+rules as writing to STDERR. The error has the following properties:
+
+  - `message` - This is the message given by the library
+  - `name` - This is always `'DeprecationError'`
+  - `namespace` - This is the namespace the deprecation came from
+  - `stack` - This is the stack of the call to the deprecated thing
+
+Example `error.stack` output:
+
+```
+DeprecationError: my-cool-module deprecated oldfunction
+    at Object.<anonymous> ([eval]-wrapper:6:22)
+    at Module._compile (module.js:456:26)
+    at evalScript (node.js:532:25)
+    at startup (node.js:80:7)
+    at node.js:902:3
+```
+
+### process.env.NO_DEPRECATION
+
+As a user of modules that are deprecated, the environment variable `NO_DEPRECATION`
+is provided as a quick solution to silencing deprecation warnings from being
+output. The format of this is similar to that of `DEBUG`:
+
+```sh
+$ NO_DEPRECATION=my-module,othermod node app.js
+```
+
+This will suppress deprecations from being output for "my-module" and "othermod".
+The value is a list of comma-separated namespaces. To suppress every warning
+across all namespaces, use the value `*` for a namespace.
+
+Providing the argument `--no-deprecation` to the `node` executable will suppress
+all deprecations (only available in Node.js 0.8 or higher).
+
+**NOTE** This will not suppress the deperecations given to any "deprecation"
+event listeners, just the output to STDERR.
+
+### process.env.TRACE_DEPRECATION
+
+As a user of modules that are deprecated, the environment variable `TRACE_DEPRECATION`
+is provided as a solution to getting more detailed location information in deprecation
+warnings by including the entire stack trace. The format of this is the same as
+`NO_DEPRECATION`:
+
+```sh
+$ TRACE_DEPRECATION=my-module,othermod node app.js
+```
+
+This will include stack traces for deprecations being output for "my-module" and
+"othermod". The value is a list of comma-separated namespaces. To trace every
+warning across all namespaces, use the value `*` for a namespace.
+
+Providing the argument `--trace-deprecation` to the `node` executable will trace
+all deprecations (only available in Node.js 0.8 or higher).
+
+**NOTE** This will not trace the deperecations silenced by `NO_DEPRECATION`.
+
+## Display
+
+![message](files/message.png)
+
+When a user calls a function in your library that you mark deprecated, they
+will see the following written to STDERR (in the given colors, similar colors
+and layout to the `debug` module):
+
+```
+bright cyan    bright yellow
+|              |          reset       cyan
+|              |          |           |
+▼              ▼          ▼           ▼
+my-cool-module deprecated oldfunction [eval]-wrapper:6:22
+▲              ▲          ▲           ▲
+|              |          |           |
+namespace      |          |           location of mycoolmod.oldfunction() call
+               |          deprecation message
+               the word "deprecated"
+```
+
+If the user redirects their STDERR to a file or somewhere that does not support
+colors, they see (similar layout to the `debug` module):
+
+```
+Sun, 15 Jun 2014 05:21:37 GMT my-cool-module deprecated oldfunction at [eval]-wrapper:6:22
+▲                             ▲              ▲          ▲              ▲
+|                             |              |          |              |
+timestamp of message          namespace      |          |             location of mycoolmod.oldfunction() call
+                                             |          deprecation message
+                                             the word "deprecated"
+```
+
+## Examples
+
+### Deprecating all calls to a function
+
+This will display a deprecated message about "oldfunction" being deprecated
+from "my-module" on STDERR.
+
+```js
+var deprecate = require('depd')('my-cool-module')
+
+// message automatically derived from function name
+// Object.oldfunction
+exports.oldfunction = deprecate.function(function oldfunction () {
+  // all calls to function are deprecated
+})
+
+// specific message
+exports.oldfunction = deprecate.function(function () {
+  // all calls to function are deprecated
+}, 'oldfunction')
+```
+
+### Conditionally deprecating a function call
+
+This will display a deprecated message about "weirdfunction" being deprecated
+from "my-module" on STDERR when called with less than 2 arguments.
+
+```js
+var deprecate = require('depd')('my-cool-module')
+
+exports.weirdfunction = function () {
+  if (arguments.length < 2) {
+    // calls with 0 or 1 args are deprecated
+    deprecate('weirdfunction args < 2')
+  }
+}
+```
+
+When calling `deprecate` as a function, the warning is counted per call site
+within your own module, so you can display different deprecations depending
+on different situations and the users will still get all the warnings:
+
+```js
+var deprecate = require('depd')('my-cool-module')
+
+exports.weirdfunction = function () {
+  if (arguments.length < 2) {
+    // calls with 0 or 1 args are deprecated
+    deprecate('weirdfunction args < 2')
+  } else if (typeof arguments[0] !== 'string') {
+    // calls with non-string first argument are deprecated
+    deprecate('weirdfunction non-string first arg')
+  }
+}
+```
+
+### Deprecating property access
+
+This will display a deprecated message about "oldprop" being deprecated
+from "my-module" on STDERR when accessed. A deprecation will be displayed
+when setting the value and when getting the value.
+
+```js
+var deprecate = require('depd')('my-cool-module')
+
+exports.oldprop = 'something'
+
+// message automatically derives from property name
+deprecate.property(exports, 'oldprop')
+
+// explicit message
+deprecate.property(exports, 'oldprop', 'oldprop >= 0.10')
+```
+
+## License
+
+[MIT](LICENSE)
+
+[appveyor-image]: https://badgen.net/appveyor/ci/dougwilson/nodejs-depd/master?label=windows
+[appveyor-url]: https://ci.appveyor.com/project/dougwilson/nodejs-depd
+[coveralls-image]: https://badgen.net/coveralls/c/github/dougwilson/nodejs-depd/master
+[coveralls-url]: https://coveralls.io/r/dougwilson/nodejs-depd?branch=master
+[node-image]: https://badgen.net/npm/node/depd
+[node-url]: https://nodejs.org/en/download/
+[npm-downloads-image]: https://badgen.net/npm/dm/depd
+[npm-url]: https://npmjs.org/package/depd
+[npm-version-image]: https://badgen.net/npm/v/depd
+[travis-image]: https://badgen.net/travis/dougwilson/nodejs-depd/master?label=linux
+[travis-url]: https://travis-ci.org/dougwilson/nodejs-depd
diff --git a/backend/node_modules/depd/index.js b/backend/node_modules/depd/index.js
new file mode 100644
index 0000000..1bf2fcf
--- /dev/null
+++ b/backend/node_modules/depd/index.js
@@ -0,0 +1,538 @@
+/*!
+ * depd
+ * Copyright(c) 2014-2018 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+/**
+ * Module dependencies.
+ */
+
+var relative = require('path').relative
+
+/**
+ * Module exports.
+ */
+
+module.exports = depd
+
+/**
+ * Get the path to base files on.
+ */
+
+var basePath = process.cwd()
+
+/**
+ * Determine if namespace is contained in the string.
+ */
+
+function containsNamespace (str, namespace) {
+  var vals = str.split(/[ ,]+/)
+  var ns = String(namespace).toLowerCase()
+
+  for (var i = 0; i < vals.length; i++) {
+    var val = vals[i]
+
+    // namespace contained
+    if (val && (val === '*' || val.toLowerCase() === ns)) {
+      return true
+    }
+  }
+
+  return false
+}
+
+/**
+ * Convert a data descriptor to accessor descriptor.
+ */
+
+function convertDataDescriptorToAccessor (obj, prop, message) {
+  var descriptor = Object.getOwnPropertyDescriptor(obj, prop)
+  var value = descriptor.value
+
+  descriptor.get = function getter () { return value }
+
+  if (descriptor.writable) {
+    descriptor.set = function setter (val) { return (value = val) }
+  }
+
+  delete descriptor.value
+  delete descriptor.writable
+
+  Object.defineProperty(obj, prop, descriptor)
+
+  return descriptor
+}
+
+/**
+ * Create arguments string to keep arity.
+ */
+
+function createArgumentsString (arity) {
+  var str = ''
+
+  for (var i = 0; i < arity; i++) {
+    str += ', arg' + i
+  }
+
+  return str.substr(2)
+}
+
+/**
+ * Create stack string from stack.
+ */
+
+function createStackString (stack) {
+  var str = this.name + ': ' + this.namespace
+
+  if (this.message) {
+    str += ' deprecated ' + this.message
+  }
+
+  for (var i = 0; i < stack.length; i++) {
+    str += '\n    at ' + stack[i].toString()
+  }
+
+  return str
+}
+
+/**
+ * Create deprecate for namespace in caller.
+ */
+
+function depd (namespace) {
+  if (!namespace) {
+    throw new TypeError('argument namespace is required')
+  }
+
+  var stack = getStack()
+  var site = callSiteLocation(stack[1])
+  var file = site[0]
+
+  function deprecate (message) {
+    // call to self as log
+    log.call(deprecate, message)
+  }
+
+  deprecate._file = file
+  deprecate._ignored = isignored(namespace)
+  deprecate._namespace = namespace
+  deprecate._traced = istraced(namespace)
+  deprecate._warned = Object.create(null)
+
+  deprecate.function = wrapfunction
+  deprecate.property = wrapproperty
+
+  return deprecate
+}
+
+/**
+ * Determine if event emitter has listeners of a given type.
+ *
+ * The way to do this check is done three different ways in Node.js >= 0.8
+ * so this consolidates them into a minimal set using instance methods.
+ *
+ * @param {EventEmitter} emitter
+ * @param {string} type
+ * @returns {boolean}
+ * @private
+ */
+
+function eehaslisteners (emitter, type) {
+  var count = typeof emitter.listenerCount !== 'function'
+    ? emitter.listeners(type).length
+    : emitter.listenerCount(type)
+
+  return count > 0
+}
+
+/**
+ * Determine if namespace is ignored.
+ */
+
+function isignored (namespace) {
+  if (process.noDeprecation) {
+    // --no-deprecation support
+    return true
+  }
+
+  var str = process.env.NO_DEPRECATION || ''
+
+  // namespace ignored
+  return containsNamespace(str, namespace)
+}
+
+/**
+ * Determine if namespace is traced.
+ */
+
+function istraced (namespace) {
+  if (process.traceDeprecation) {
+    // --trace-deprecation support
+    return true
+  }
+
+  var str = process.env.TRACE_DEPRECATION || ''
+
+  // namespace traced
+  return containsNamespace(str, namespace)
+}
+
+/**
+ * Display deprecation message.
+ */
+
+function log (message, site) {
+  var haslisteners = eehaslisteners(process, 'deprecation')
+
+  // abort early if no destination
+  if (!haslisteners && this._ignored) {
+    return
+  }
+
+  var caller
+  var callFile
+  var callSite
+  var depSite
+  var i = 0
+  var seen = false
+  var stack = getStack()
+  var file = this._file
+
+  if (site) {
+    // provided site
+    depSite = site
+    callSite = callSiteLocation(stack[1])
+    callSite.name = depSite.name
+    file = callSite[0]
+  } else {
+    // get call site
+    i = 2
+    depSite = callSiteLocation(stack[i])
+    callSite = depSite
+  }
+
+  // get caller of deprecated thing in relation to file
+  for (; i < stack.length; i++) {
+    caller = callSiteLocation(stack[i])
+    callFile = caller[0]
+
+    if (callFile === file) {
+      seen = true
+    } else if (callFile === this._file) {
+      file = this._file
+    } else if (seen) {
+      break
+    }
+  }
+
+  var key = caller
+    ? depSite.join(':') + '__' + caller.join(':')
+    : undefined
+
+  if (key !== undefined && key in this._warned) {
+    // already warned
+    return
+  }
+
+  this._warned[key] = true
+
+  // generate automatic message from call site
+  var msg = message
+  if (!msg) {
+    msg = callSite === depSite || !callSite.name
+      ? defaultMessage(depSite)
+      : defaultMessage(callSite)
+  }
+
+  // emit deprecation if listeners exist
+  if (haslisteners) {
+    var err = DeprecationError(this._namespace, msg, stack.slice(i))
+    process.emit('deprecation', err)
+    return
+  }
+
+  // format and write message
+  var format = process.stderr.isTTY
+    ? formatColor
+    : formatPlain
+  var output = format.call(this, msg, caller, stack.slice(i))
+  process.stderr.write(output + '\n', 'utf8')
+}
+
+/**
+ * Get call site location as array.
+ */
+
+function callSiteLocation (callSite) {
+  var file = callSite.getFileName() || '<anonymous>'
+  var line = callSite.getLineNumber()
+  var colm = callSite.getColumnNumber()
+
+  if (callSite.isEval()) {
+    file = callSite.getEvalOrigin() + ', ' + file
+  }
+
+  var site = [file, line, colm]
+
+  site.callSite = callSite
+  site.name = callSite.getFunctionName()
+
+  return site
+}
+
+/**
+ * Generate a default message from the site.
+ */
+
+function defaultMessage (site) {
+  var callSite = site.callSite
+  var funcName = site.name
+
+  // make useful anonymous name
+  if (!funcName) {
+    funcName = '<anonymous@' + formatLocation(site) + '>'
+  }
+
+  var context = callSite.getThis()
+  var typeName = context && callSite.getTypeName()
+
+  // ignore useless type name
+  if (typeName === 'Object') {
+    typeName = undefined
+  }
+
+  // make useful type name
+  if (typeName === 'Function') {
+    typeName = context.name || typeName
+  }
+
+  return typeName && callSite.getMethodName()
+    ? typeName + '.' + funcName
+    : funcName
+}
+
+/**
+ * Format deprecation message without color.
+ */
+
+function formatPlain (msg, caller, stack) {
+  var timestamp = new Date().toUTCString()
+
+  var formatted = timestamp +
+    ' ' + this._namespace +
+    ' deprecated ' + msg
+
+  // add stack trace
+  if (this._traced) {
+    for (var i = 0; i < stack.length; i++) {
+      formatted += '\n    at ' + stack[i].toString()
+    }
+
+    return formatted
+  }
+
+  if (caller) {
+    formatted += ' at ' + formatLocation(caller)
+  }
+
+  return formatted
+}
+
+/**
+ * Format deprecation message with color.
+ */
+
+function formatColor (msg, caller, stack) {
+  var formatted = '\x1b[36;1m' + this._namespace + '\x1b[22;39m' + // bold cyan
+    ' \x1b[33;1mdeprecated\x1b[22;39m' + // bold yellow
+    ' \x1b[0m' + msg + '\x1b[39m' // reset
+
+  // add stack trace
+  if (this._traced) {
+    for (var i = 0; i < stack.length; i++) {
+      formatted += '\n    \x1b[36mat ' + stack[i].toString() + '\x1b[39m' // cyan
+    }
+
+    return formatted
+  }
+
+  if (caller) {
+    formatted += ' \x1b[36m' + formatLocation(caller) + '\x1b[39m' // cyan
+  }
+
+  return formatted
+}
+
+/**
+ * Format call site location.
+ */
+
+function formatLocation (callSite) {
+  return relative(basePath, callSite[0]) +
+    ':' + callSite[1] +
+    ':' + callSite[2]
+}
+
+/**
+ * Get the stack as array of call sites.
+ */
+
+function getStack () {
+  var limit = Error.stackTraceLimit
+  var obj = {}
+  var prep = Error.prepareStackTrace
+
+  Error.prepareStackTrace = prepareObjectStackTrace
+  Error.stackTraceLimit = Math.max(10, limit)
+
+  // capture the stack
+  Error.captureStackTrace(obj)
+
+  // slice this function off the top
+  var stack = obj.stack.slice(1)
+
+  Error.prepareStackTrace = prep
+  Error.stackTraceLimit = limit
+
+  return stack
+}
+
+/**
+ * Capture call site stack from v8.
+ */
+
+function prepareObjectStackTrace (obj, stack) {
+  return stack
+}
+
+/**
+ * Return a wrapped function in a deprecation message.
+ */
+
+function wrapfunction (fn, message) {
+  if (typeof fn !== 'function') {
+    throw new TypeError('argument fn must be a function')
+  }
+
+  var args = createArgumentsString(fn.length)
+  var stack = getStack()
+  var site = callSiteLocation(stack[1])
+
+  site.name = fn.name
+
+  // eslint-disable-next-line no-new-func
+  var deprecatedfn = new Function('fn', 'log', 'deprecate', 'message', 'site',
+    '"use strict"\n' +
+    'return function (' + args + ') {' +
+    'log.call(deprecate, message, site)\n' +
+    'return fn.apply(this, arguments)\n' +
+    '}')(fn, log, this, message, site)
+
+  return deprecatedfn
+}
+
+/**
+ * Wrap property in a deprecation message.
+ */
+
+function wrapproperty (obj, prop, message) {
+  if (!obj || (typeof obj !== 'object' && typeof obj !== 'function')) {
+    throw new TypeError('argument obj must be object')
+  }
+
+  var descriptor = Object.getOwnPropertyDescriptor(obj, prop)
+
+  if (!descriptor) {
+    throw new TypeError('must call property on owner object')
+  }
+
+  if (!descriptor.configurable) {
+    throw new TypeError('property must be configurable')
+  }
+
+  var deprecate = this
+  var stack = getStack()
+  var site = callSiteLocation(stack[1])
+
+  // set site name
+  site.name = prop
+
+  // convert data descriptor
+  if ('value' in descriptor) {
+    descriptor = convertDataDescriptorToAccessor(obj, prop, message)
+  }
+
+  var get = descriptor.get
+  var set = descriptor.set
+
+  // wrap getter
+  if (typeof get === 'function') {
+    descriptor.get = function getter () {
+      log.call(deprecate, message, site)
+      return get.apply(this, arguments)
+    }
+  }
+
+  // wrap setter
+  if (typeof set === 'function') {
+    descriptor.set = function setter () {
+      log.call(deprecate, message, site)
+      return set.apply(this, arguments)
+    }
+  }
+
+  Object.defineProperty(obj, prop, descriptor)
+}
+
+/**
+ * Create DeprecationError for deprecation
+ */
+
+function DeprecationError (namespace, message, stack) {
+  var error = new Error()
+  var stackString
+
+  Object.defineProperty(error, 'constructor', {
+    value: DeprecationError
+  })
+
+  Object.defineProperty(error, 'message', {
+    configurable: true,
+    enumerable: false,
+    value: message,
+    writable: true
+  })
+
+  Object.defineProperty(error, 'name', {
+    enumerable: false,
+    configurable: true,
+    value: 'DeprecationError',
+    writable: true
+  })
+
+  Object.defineProperty(error, 'namespace', {
+    configurable: true,
+    enumerable: false,
+    value: namespace,
+    writable: true
+  })
+
+  Object.defineProperty(error, 'stack', {
+    configurable: true,
+    enumerable: false,
+    get: function () {
+      if (stackString !== undefined) {
+        return stackString
+      }
+
+      // prepare stack trace
+      return (stackString = createStackString.call(this, stack))
+    },
+    set: function setter (val) {
+      stackString = val
+    }
+  })
+
+  return error
+}
diff --git a/backend/node_modules/depd/lib/browser/index.js b/backend/node_modules/depd/lib/browser/index.js
new file mode 100644
index 0000000..6be45cc
--- /dev/null
+++ b/backend/node_modules/depd/lib/browser/index.js
@@ -0,0 +1,77 @@
+/*!
+ * depd
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = depd
+
+/**
+ * Create deprecate for namespace in caller.
+ */
+
+function depd (namespace) {
+  if (!namespace) {
+    throw new TypeError('argument namespace is required')
+  }
+
+  function deprecate (message) {
+    // no-op in browser
+  }
+
+  deprecate._file = undefined
+  deprecate._ignored = true
+  deprecate._namespace = namespace
+  deprecate._traced = false
+  deprecate._warned = Object.create(null)
+
+  deprecate.function = wrapfunction
+  deprecate.property = wrapproperty
+
+  return deprecate
+}
+
+/**
+ * Return a wrapped function in a deprecation message.
+ *
+ * This is a no-op version of the wrapper, which does nothing but call
+ * validation.
+ */
+
+function wrapfunction (fn, message) {
+  if (typeof fn !== 'function') {
+    throw new TypeError('argument fn must be a function')
+  }
+
+  return fn
+}
+
+/**
+ * Wrap property in a deprecation message.
+ *
+ * This is a no-op version of the wrapper, which does nothing but call
+ * validation.
+ */
+
+function wrapproperty (obj, prop, message) {
+  if (!obj || (typeof obj !== 'object' && typeof obj !== 'function')) {
+    throw new TypeError('argument obj must be object')
+  }
+
+  var descriptor = Object.getOwnPropertyDescriptor(obj, prop)
+
+  if (!descriptor) {
+    throw new TypeError('must call property on owner object')
+  }
+
+  if (!descriptor.configurable) {
+    throw new TypeError('property must be configurable')
+  }
+}
diff --git a/backend/node_modules/depd/package.json b/backend/node_modules/depd/package.json
new file mode 100644
index 0000000..3857e19
--- /dev/null
+++ b/backend/node_modules/depd/package.json
@@ -0,0 +1,45 @@
+{
+  "name": "depd",
+  "description": "Deprecate all the things",
+  "version": "2.0.0",
+  "author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
+  "license": "MIT",
+  "keywords": [
+    "deprecate",
+    "deprecated"
+  ],
+  "repository": "dougwilson/nodejs-depd",
+  "browser": "lib/browser/index.js",
+  "devDependencies": {
+    "benchmark": "2.1.4",
+    "beautify-benchmark": "0.2.4",
+    "eslint": "5.7.0",
+    "eslint-config-standard": "12.0.0",
+    "eslint-plugin-import": "2.14.0",
+    "eslint-plugin-markdown": "1.0.0-beta.7",
+    "eslint-plugin-node": "7.0.1",
+    "eslint-plugin-promise": "4.0.1",
+    "eslint-plugin-standard": "4.0.0",
+    "istanbul": "0.4.5",
+    "mocha": "5.2.0",
+    "safe-buffer": "5.1.2",
+    "uid-safe": "2.1.5"
+  },
+  "files": [
+    "lib/",
+    "History.md",
+    "LICENSE",
+    "index.js",
+    "Readme.md"
+  ],
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "bench": "node benchmark/index.js",
+    "lint": "eslint --plugin markdown --ext js,md .",
+    "test": "mocha --reporter spec --bail test/",
+    "test-ci": "istanbul cover --print=none node_modules/mocha/bin/_mocha -- --reporter spec test/ && istanbul report lcovonly text-summary",
+    "test-cov": "istanbul cover --print=none node_modules/mocha/bin/_mocha -- --reporter dot test/ && istanbul report lcov text-summary"
+  }
+}
diff --git a/backend/node_modules/destroy/LICENSE b/backend/node_modules/destroy/LICENSE
new file mode 100644
index 0000000..0e2c35f
--- /dev/null
+++ b/backend/node_modules/destroy/LICENSE
@@ -0,0 +1,23 @@
+
+The MIT License (MIT)
+
+Copyright (c) 2014 Jonathan Ong me@jongleberry.com
+Copyright (c) 2015-2022 Douglas Christopher Wilson doug@somethingdoug.com
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/destroy/README.md b/backend/node_modules/destroy/README.md
new file mode 100644
index 0000000..e7701ae
--- /dev/null
+++ b/backend/node_modules/destroy/README.md
@@ -0,0 +1,63 @@
+# destroy
+
+[![NPM version][npm-image]][npm-url]
+[![Build Status][github-actions-ci-image]][github-actions-ci-url]
+[![Test coverage][coveralls-image]][coveralls-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+Destroy a stream.
+
+This module is meant to ensure a stream gets destroyed, handling different APIs
+and Node.js bugs.
+
+## API
+
+```js
+var destroy = require('destroy')
+```
+
+### destroy(stream [, suppress])
+
+Destroy the given stream, and optionally suppress any future `error` events.
+
+In most cases, this is identical to a simple `stream.destroy()` call. The rules
+are as follows for a given stream:
+
+  1. If the `stream` is an instance of `ReadStream`, then call `stream.destroy()`
+     and add a listener to the `open` event to call `stream.close()` if it is
+     fired. This is for a Node.js bug that will leak a file descriptor if
+     `.destroy()` is called before `open`.
+  2. If the `stream` is an instance of a zlib stream, then call `stream.destroy()`
+     and close the underlying zlib handle if open, otherwise call `stream.close()`.
+     This is for consistency across Node.js versions and a Node.js bug that will
+     leak a native zlib handle.
+  3. If the `stream` is not an instance of `Stream`, then nothing happens.
+  4. If the `stream` has a `.destroy()` method, then call it.
+
+The function returns the `stream` passed in as the argument.
+
+## Example
+
+```js
+var destroy = require('destroy')
+
+var fs = require('fs')
+var stream = fs.createReadStream('package.json')
+
+// ... and later
+destroy(stream)
+```
+
+[npm-image]: https://img.shields.io/npm/v/destroy.svg?style=flat-square
+[npm-url]: https://npmjs.org/package/destroy
+[github-tag]: http://img.shields.io/github/tag/stream-utils/destroy.svg?style=flat-square
+[github-url]: https://github.com/stream-utils/destroy/tags
+[coveralls-image]: https://img.shields.io/coveralls/stream-utils/destroy.svg?style=flat-square
+[coveralls-url]: https://coveralls.io/r/stream-utils/destroy?branch=master
+[license-image]: http://img.shields.io/npm/l/destroy.svg?style=flat-square
+[license-url]: LICENSE.md
+[downloads-image]: http://img.shields.io/npm/dm/destroy.svg?style=flat-square
+[downloads-url]: https://npmjs.org/package/destroy
+[github-actions-ci-image]: https://img.shields.io/github/workflow/status/stream-utils/destroy/ci/master?label=ci&style=flat-square
+[github-actions-ci-url]: https://github.com/stream-utils/destroy/actions/workflows/ci.yml
diff --git a/backend/node_modules/destroy/index.js b/backend/node_modules/destroy/index.js
new file mode 100644
index 0000000..7fd5c09
--- /dev/null
+++ b/backend/node_modules/destroy/index.js
@@ -0,0 +1,209 @@
+/*!
+ * destroy
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2015-2022 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var EventEmitter = require('events').EventEmitter
+var ReadStream = require('fs').ReadStream
+var Stream = require('stream')
+var Zlib = require('zlib')
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = destroy
+
+/**
+ * Destroy the given stream, and optionally suppress any future `error` events.
+ *
+ * @param {object} stream
+ * @param {boolean} suppress
+ * @public
+ */
+
+function destroy (stream, suppress) {
+  if (isFsReadStream(stream)) {
+    destroyReadStream(stream)
+  } else if (isZlibStream(stream)) {
+    destroyZlibStream(stream)
+  } else if (hasDestroy(stream)) {
+    stream.destroy()
+  }
+
+  if (isEventEmitter(stream) && suppress) {
+    stream.removeAllListeners('error')
+    stream.addListener('error', noop)
+  }
+
+  return stream
+}
+
+/**
+ * Destroy a ReadStream.
+ *
+ * @param {object} stream
+ * @private
+ */
+
+function destroyReadStream (stream) {
+  stream.destroy()
+
+  if (typeof stream.close === 'function') {
+    // node.js core bug work-around
+    stream.on('open', onOpenClose)
+  }
+}
+
+/**
+ * Close a Zlib stream.
+ *
+ * Zlib streams below Node.js 4.5.5 have a buggy implementation
+ * of .close() when zlib encountered an error.
+ *
+ * @param {object} stream
+ * @private
+ */
+
+function closeZlibStream (stream) {
+  if (stream._hadError === true) {
+    var prop = stream._binding === null
+      ? '_binding'
+      : '_handle'
+
+    stream[prop] = {
+      close: function () { this[prop] = null }
+    }
+  }
+
+  stream.close()
+}
+
+/**
+ * Destroy a Zlib stream.
+ *
+ * Zlib streams don't have a destroy function in Node.js 6. On top of that
+ * simply calling destroy on a zlib stream in Node.js 8+ will result in a
+ * memory leak. So until that is fixed, we need to call both close AND destroy.
+ *
+ * PR to fix memory leak: https://github.com/nodejs/node/pull/23734
+ *
+ * In Node.js 6+8, it's important that destroy is called before close as the
+ * stream would otherwise emit the error 'zlib binding closed'.
+ *
+ * @param {object} stream
+ * @private
+ */
+
+function destroyZlibStream (stream) {
+  if (typeof stream.destroy === 'function') {
+    // node.js core bug work-around
+    // istanbul ignore if: node.js 0.8
+    if (stream._binding) {
+      // node.js < 0.10.0
+      stream.destroy()
+      if (stream._processing) {
+        stream._needDrain = true
+        stream.once('drain', onDrainClearBinding)
+      } else {
+        stream._binding.clear()
+      }
+    } else if (stream._destroy && stream._destroy !== Stream.Transform.prototype._destroy) {
+      // node.js >= 12, ^11.1.0, ^10.15.1
+      stream.destroy()
+    } else if (stream._destroy && typeof stream.close === 'function') {
+      // node.js 7, 8
+      stream.destroyed = true
+      stream.close()
+    } else {
+      // fallback
+      // istanbul ignore next
+      stream.destroy()
+    }
+  } else if (typeof stream.close === 'function') {
+    // node.js < 8 fallback
+    closeZlibStream(stream)
+  }
+}
+
+/**
+ * Determine if stream has destroy.
+ * @private
+ */
+
+function hasDestroy (stream) {
+  return stream instanceof Stream &&
+    typeof stream.destroy === 'function'
+}
+
+/**
+ * Determine if val is EventEmitter.
+ * @private
+ */
+
+function isEventEmitter (val) {
+  return val instanceof EventEmitter
+}
+
+/**
+ * Determine if stream is fs.ReadStream stream.
+ * @private
+ */
+
+function isFsReadStream (stream) {
+  return stream instanceof ReadStream
+}
+
+/**
+ * Determine if stream is Zlib stream.
+ * @private
+ */
+
+function isZlibStream (stream) {
+  return stream instanceof Zlib.Gzip ||
+    stream instanceof Zlib.Gunzip ||
+    stream instanceof Zlib.Deflate ||
+    stream instanceof Zlib.DeflateRaw ||
+    stream instanceof Zlib.Inflate ||
+    stream instanceof Zlib.InflateRaw ||
+    stream instanceof Zlib.Unzip
+}
+
+/**
+ * No-op function.
+ * @private
+ */
+
+function noop () {}
+
+/**
+ * On drain handler to clear binding.
+ * @private
+ */
+
+// istanbul ignore next: node.js 0.8
+function onDrainClearBinding () {
+  this._binding.clear()
+}
+
+/**
+ * On open handler to close stream.
+ * @private
+ */
+
+function onOpenClose () {
+  if (typeof this.fd === 'number') {
+    // actually close down the fd
+    this.close()
+  }
+}
diff --git a/backend/node_modules/destroy/package.json b/backend/node_modules/destroy/package.json
new file mode 100644
index 0000000..c85e438
--- /dev/null
+++ b/backend/node_modules/destroy/package.json
@@ -0,0 +1,48 @@
+{
+  "name": "destroy",
+  "description": "destroy a stream if possible",
+  "version": "1.2.0",
+  "author": {
+    "name": "Jonathan Ong",
+    "email": "me@jongleberry.com",
+    "url": "http://jongleberry.com",
+    "twitter": "https://twitter.com/jongleberry"
+  },
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>"
+  ],
+  "license": "MIT",
+  "repository": "stream-utils/destroy",
+  "devDependencies": {
+    "eslint": "7.32.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.25.4",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "5.2.0",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "9.2.2",
+    "nyc": "15.1.0"
+  },
+  "engines": {
+    "node": ">= 0.8",
+    "npm": "1.2.8000 || >= 1.4.16"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec",
+    "test-ci": "nyc --reporter=lcovonly --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
+  },
+  "files": [
+    "index.js",
+    "LICENSE"
+  ],
+  "keywords": [
+    "stream",
+    "streams",
+    "destroy",
+    "cleanup",
+    "leak",
+    "fd"
+  ]
+}
diff --git a/backend/node_modules/dotenv/CHANGELOG.md b/backend/node_modules/dotenv/CHANGELOG.md
new file mode 100644
index 0000000..e3e40d6
--- /dev/null
+++ b/backend/node_modules/dotenv/CHANGELOG.md
@@ -0,0 +1,488 @@
+# Changelog
+
+All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
+
+## [Unreleased](https://github.com/motdotla/dotenv/compare/v16.4.7...master)
+
+## [16.4.7](https://github.com/motdotla/dotenv/compare/v16.4.6...v16.4.7 (2024-12-03)
+
+### Changed
+
+- Ignore `.tap` folder when publishing. (oops, sorry about that everyone. - @motdotla) [#848](https://github.com/motdotla/dotenv/pull/848)
+
+## [16.4.6](https://github.com/motdotla/dotenv/compare/v16.4.5...v16.4.6) (2024-12-02)
+
+### Changed
+
+- Clean up stale dev dependencies [#847](https://github.com/motdotla/dotenv/pull/847)
+- Various README updates clarifying usage and alternative solutions using [dotenvx](https://github.com/dotenvx/dotenvx)
+
+## [16.4.5](https://github.com/motdotla/dotenv/compare/v16.4.4...v16.4.5) (2024-02-19)
+
+### Changed
+
+- 🐞 Fix recent regression when using `path` option. return to historical behavior: do not attempt to auto find `.env` if `path` set. (regression was introduced in `16.4.3`) [#814](https://github.com/motdotla/dotenv/pull/814)
+
+## [16.4.4](https://github.com/motdotla/dotenv/compare/v16.4.3...v16.4.4) (2024-02-13)
+
+### Changed
+
+- 🐞 Replaced chaining operator `?.` with old school `&&` (fixing node 12 failures) [#812](https://github.com/motdotla/dotenv/pull/812)
+
+## [16.4.3](https://github.com/motdotla/dotenv/compare/v16.4.2...v16.4.3) (2024-02-12)
+
+### Changed
+
+- Fixed processing of multiple files in `options.path` [#805](https://github.com/motdotla/dotenv/pull/805)
+
+## [16.4.2](https://github.com/motdotla/dotenv/compare/v16.4.1...v16.4.2) (2024-02-10)
+
+### Changed
+
+- Changed funding link in package.json to [`dotenvx.com`](https://dotenvx.com)
+
+## [16.4.1](https://github.com/motdotla/dotenv/compare/v16.4.0...v16.4.1) (2024-01-24)
+
+- Patch support for array as `path` option [#797](https://github.com/motdotla/dotenv/pull/797)
+
+## [16.4.0](https://github.com/motdotla/dotenv/compare/v16.3.2...v16.4.0) (2024-01-23)
+
+- Add `error.code` to error messages around `.env.vault` decryption handling [#795](https://github.com/motdotla/dotenv/pull/795)
+- Add ability to find `.env.vault` file when filename(s) passed as an array [#784](https://github.com/motdotla/dotenv/pull/784)
+
+## [16.3.2](https://github.com/motdotla/dotenv/compare/v16.3.1...v16.3.2) (2024-01-18)
+
+### Added
+
+- Add debug message when no encoding set [#735](https://github.com/motdotla/dotenv/pull/735)
+
+### Changed
+
+- Fix output typing for `populate` [#792](https://github.com/motdotla/dotenv/pull/792)
+- Use subarray instead of slice [#793](https://github.com/motdotla/dotenv/pull/793)
+
+## [16.3.1](https://github.com/motdotla/dotenv/compare/v16.3.0...v16.3.1) (2023-06-17)
+
+### Added
+
+- Add missing type definitions for `processEnv` and `DOTENV_KEY` options. [#756](https://github.com/motdotla/dotenv/pull/756)
+
+## [16.3.0](https://github.com/motdotla/dotenv/compare/v16.2.0...v16.3.0) (2023-06-16)
+
+### Added
+
+- Optionally pass `DOTENV_KEY` to options rather than relying on `process.env.DOTENV_KEY`. Defaults to `process.env.DOTENV_KEY` [#754](https://github.com/motdotla/dotenv/pull/754)
+
+## [16.2.0](https://github.com/motdotla/dotenv/compare/v16.1.4...v16.2.0) (2023-06-15)
+
+### Added
+
+- Optionally write to your own target object rather than `process.env`. Defaults to `process.env`. [#753](https://github.com/motdotla/dotenv/pull/753)
+- Add import type URL to types file [#751](https://github.com/motdotla/dotenv/pull/751)
+
+## [16.1.4](https://github.com/motdotla/dotenv/compare/v16.1.3...v16.1.4) (2023-06-04)
+
+### Added
+
+- Added `.github/` to `.npmignore` [#747](https://github.com/motdotla/dotenv/pull/747)
+
+## [16.1.3](https://github.com/motdotla/dotenv/compare/v16.1.2...v16.1.3) (2023-05-31)
+
+### Removed
+
+- Removed `browser` keys for `path`, `os`, and `crypto` in package.json. These were set to false incorrectly as of 16.1. Instead, if using dotenv on the front-end make sure to include polyfills for `path`, `os`, and `crypto`. [node-polyfill-webpack-plugin](https://github.com/Richienb/node-polyfill-webpack-plugin) provides these.
+
+## [16.1.2](https://github.com/motdotla/dotenv/compare/v16.1.1...v16.1.2) (2023-05-31)
+
+### Changed
+
+- Exposed private function `_configDotenv` as `configDotenv`. [#744](https://github.com/motdotla/dotenv/pull/744)
+
+## [16.1.1](https://github.com/motdotla/dotenv/compare/v16.1.0...v16.1.1) (2023-05-30)
+
+### Added
+
+- Added type definition for `decrypt` function
+
+### Changed
+
+- Fixed `{crypto: false}` in `packageJson.browser`
+
+## [16.1.0](https://github.com/motdotla/dotenv/compare/v16.0.3...v16.1.0) (2023-05-30)
+
+### Added
+
+- Add `populate` convenience method [#733](https://github.com/motdotla/dotenv/pull/733)
+- Accept URL as path option [#720](https://github.com/motdotla/dotenv/pull/720)
+- Add dotenv to `npm fund` command
+- Spanish language README [#698](https://github.com/motdotla/dotenv/pull/698)
+- Add `.env.vault` support. 🎉 ([#730](https://github.com/motdotla/dotenv/pull/730))
+
+ℹ️ `.env.vault` extends the `.env` file format standard with a localized encrypted vault file. Package it securely with your production code deploys. It's cloud agnostic so that you can deploy your secrets anywhere – without [risky third-party integrations](https://techcrunch.com/2023/01/05/circleci-breach/). [read more](https://github.com/motdotla/dotenv#-deploying)
+
+### Changed
+
+- Fixed "cannot resolve 'fs'" error on tools like Replit [#693](https://github.com/motdotla/dotenv/pull/693)
+
+## [16.0.3](https://github.com/motdotla/dotenv/compare/v16.0.2...v16.0.3) (2022-09-29)
+
+### Changed
+
+- Added library version to debug logs ([#682](https://github.com/motdotla/dotenv/pull/682))
+
+## [16.0.2](https://github.com/motdotla/dotenv/compare/v16.0.1...v16.0.2) (2022-08-30)
+
+### Added
+
+- Export `env-options.js` and `cli-options.js` in package.json for use with downstream [dotenv-expand](https://github.com/motdotla/dotenv-expand) module
+
+## [16.0.1](https://github.com/motdotla/dotenv/compare/v16.0.0...v16.0.1) (2022-05-10)
+
+### Changed
+
+- Minor README clarifications
+- Development ONLY: updated devDependencies as recommended for development only security risks ([#658](https://github.com/motdotla/dotenv/pull/658))
+
+## [16.0.0](https://github.com/motdotla/dotenv/compare/v15.0.1...v16.0.0) (2022-02-02)
+
+### Added
+
+- _Breaking:_ Backtick support 🎉 ([#615](https://github.com/motdotla/dotenv/pull/615))
+
+If you had values containing the backtick character, please quote those values with either single or double quotes.
+
+## [15.0.1](https://github.com/motdotla/dotenv/compare/v15.0.0...v15.0.1) (2022-02-02)
+
+### Changed
+
+- Properly parse empty single or double quoted values 🐞 ([#614](https://github.com/motdotla/dotenv/pull/614))
+
+## [15.0.0](https://github.com/motdotla/dotenv/compare/v14.3.2...v15.0.0) (2022-01-31)
+
+`v15.0.0` is a major new release with some important breaking changes.
+
+### Added
+
+- _Breaking:_ Multiline parsing support (just works. no need for the flag.)
+
+### Changed
+
+- _Breaking:_ `#` marks the beginning of a comment (UNLESS the value is wrapped in quotes. Please update your `.env` files to wrap in quotes any values containing `#`. For example: `SECRET_HASH="something-with-a-#-hash"`).
+
+..Understandably, (as some teams have noted) this is tedious to do across the entire team. To make it less tedious, we recommend using [dotenv cli](https://github.com/dotenv-org/cli) going forward. It's an optional plugin that will keep your `.env` files in sync between machines, environments, or team members.
+
+### Removed
+
+- _Breaking:_ Remove multiline option (just works out of the box now. no need for the flag.)
+
+## [14.3.2](https://github.com/motdotla/dotenv/compare/v14.3.1...v14.3.2) (2022-01-25)
+
+### Changed
+
+- Preserve backwards compatibility on values containing `#` 🐞 ([#603](https://github.com/motdotla/dotenv/pull/603))
+
+## [14.3.1](https://github.com/motdotla/dotenv/compare/v14.3.0...v14.3.1) (2022-01-25)
+
+### Changed
+
+- Preserve backwards compatibility on exports by re-introducing the prior in-place exports 🐞 ([#606](https://github.com/motdotla/dotenv/pull/606))
+
+## [14.3.0](https://github.com/motdotla/dotenv/compare/v14.2.0...v14.3.0) (2022-01-24)
+
+### Added
+
+- Add `multiline` option 🎉 ([#486](https://github.com/motdotla/dotenv/pull/486))
+
+## [14.2.0](https://github.com/motdotla/dotenv/compare/v14.1.1...v14.2.0) (2022-01-17)
+
+### Added
+
+- Add `dotenv_config_override` cli option
+- Add `DOTENV_CONFIG_OVERRIDE` command line env option
+
+## [14.1.1](https://github.com/motdotla/dotenv/compare/v14.1.0...v14.1.1) (2022-01-17)
+
+### Added
+
+- Add React gotcha to FAQ on README
+
+## [14.1.0](https://github.com/motdotla/dotenv/compare/v14.0.1...v14.1.0) (2022-01-17)
+
+### Added
+
+- Add `override` option 🎉 ([#595](https://github.com/motdotla/dotenv/pull/595))
+
+## [14.0.1](https://github.com/motdotla/dotenv/compare/v14.0.0...v14.0.1) (2022-01-16)
+
+### Added
+
+- Log error on failure to load `.env` file ([#594](https://github.com/motdotla/dotenv/pull/594))
+
+## [14.0.0](https://github.com/motdotla/dotenv/compare/v13.0.1...v14.0.0) (2022-01-16)
+
+### Added
+
+- _Breaking:_ Support inline comments for the parser 🎉 ([#568](https://github.com/motdotla/dotenv/pull/568))
+
+## [13.0.1](https://github.com/motdotla/dotenv/compare/v13.0.0...v13.0.1) (2022-01-16)
+
+### Changed
+
+* Hide comments and newlines from debug output ([#404](https://github.com/motdotla/dotenv/pull/404))
+
+## [13.0.0](https://github.com/motdotla/dotenv/compare/v12.0.4...v13.0.0) (2022-01-16)
+
+### Added
+
+* _Breaking:_ Add type file for `config.js` ([#539](https://github.com/motdotla/dotenv/pull/539))
+
+## [12.0.4](https://github.com/motdotla/dotenv/compare/v12.0.3...v12.0.4) (2022-01-16)
+
+### Changed
+
+* README updates
+* Minor order adjustment to package json format
+
+## [12.0.3](https://github.com/motdotla/dotenv/compare/v12.0.2...v12.0.3) (2022-01-15)
+
+### Changed
+
+* Simplified jsdoc for consistency across editors
+
+## [12.0.2](https://github.com/motdotla/dotenv/compare/v12.0.1...v12.0.2) (2022-01-15)
+
+### Changed
+
+* Improve embedded jsdoc type documentation
+
+## [12.0.1](https://github.com/motdotla/dotenv/compare/v12.0.0...v12.0.1) (2022-01-15)
+
+### Changed
+
+* README updates and clarifications
+
+## [12.0.0](https://github.com/motdotla/dotenv/compare/v11.0.0...v12.0.0) (2022-01-15)
+
+### Removed
+
+- _Breaking:_ drop support for Flow static type checker ([#584](https://github.com/motdotla/dotenv/pull/584))
+
+### Changed
+
+- Move types/index.d.ts to lib/main.d.ts ([#585](https://github.com/motdotla/dotenv/pull/585))
+- Typescript cleanup ([#587](https://github.com/motdotla/dotenv/pull/587))
+- Explicit typescript inclusion in package.json ([#566](https://github.com/motdotla/dotenv/pull/566))
+
+## [11.0.0](https://github.com/motdotla/dotenv/compare/v10.0.0...v11.0.0) (2022-01-11)
+
+### Changed
+
+- _Breaking:_ drop support for Node v10 ([#558](https://github.com/motdotla/dotenv/pull/558))
+- Patch debug option ([#550](https://github.com/motdotla/dotenv/pull/550))
+
+## [10.0.0](https://github.com/motdotla/dotenv/compare/v9.0.2...v10.0.0) (2021-05-20)
+
+### Added
+
+- Add generic support to parse function
+- Allow for import "dotenv/config.js"
+- Add support to resolve home directory in path via ~
+
+## [9.0.2](https://github.com/motdotla/dotenv/compare/v9.0.1...v9.0.2) (2021-05-10)
+
+### Changed
+
+- Support windows newlines with debug mode
+
+## [9.0.1](https://github.com/motdotla/dotenv/compare/v9.0.0...v9.0.1) (2021-05-08)
+
+### Changed
+
+- Updates to README
+
+## [9.0.0](https://github.com/motdotla/dotenv/compare/v8.6.0...v9.0.0) (2021-05-05)
+
+### Changed
+
+- _Breaking:_ drop support for Node v8
+
+## [8.6.0](https://github.com/motdotla/dotenv/compare/v8.5.1...v8.6.0) (2021-05-05)
+
+### Added
+
+- define package.json in exports
+
+## [8.5.1](https://github.com/motdotla/dotenv/compare/v8.5.0...v8.5.1) (2021-05-05)
+
+### Changed
+
+- updated dev dependencies via npm audit
+
+## [8.5.0](https://github.com/motdotla/dotenv/compare/v8.4.0...v8.5.0) (2021-05-05)
+
+### Added
+
+- allow for `import "dotenv/config"`
+
+## [8.4.0](https://github.com/motdotla/dotenv/compare/v8.3.0...v8.4.0) (2021-05-05)
+
+### Changed
+
+- point to exact types file to work with VS Code
+
+## [8.3.0](https://github.com/motdotla/dotenv/compare/v8.2.0...v8.3.0) (2021-05-05)
+
+### Changed
+
+- _Breaking:_ drop support for Node v8 (mistake to be released as minor bump. later bumped to 9.0.0. see above.)
+
+## [8.2.0](https://github.com/motdotla/dotenv/compare/v8.1.0...v8.2.0) (2019-10-16)
+
+### Added
+
+- TypeScript types
+
+## [8.1.0](https://github.com/motdotla/dotenv/compare/v8.0.0...v8.1.0) (2019-08-18)
+
+### Changed
+
+- _Breaking:_ drop support for Node v6 ([#392](https://github.com/motdotla/dotenv/issues/392))
+
+# [8.0.0](https://github.com/motdotla/dotenv/compare/v7.0.0...v8.0.0) (2019-05-02)
+
+### Changed
+
+- _Breaking:_ drop support for Node v6 ([#302](https://github.com/motdotla/dotenv/issues/392))
+
+## [7.0.0] - 2019-03-12
+
+### Fixed
+
+- Fix removing unbalanced quotes ([#376](https://github.com/motdotla/dotenv/pull/376))
+
+### Removed
+
+- Removed `load` alias for `config` for consistency throughout code and documentation.
+
+## [6.2.0] - 2018-12-03
+
+### Added
+
+- Support preload configuration via environment variables ([#351](https://github.com/motdotla/dotenv/issues/351))
+
+## [6.1.0] - 2018-10-08
+
+### Added
+
+- `debug` option for `config` and `parse` methods will turn on logging
+
+## [6.0.0] - 2018-06-02
+
+### Changed
+
+- _Breaking:_ drop support for Node v4 ([#304](https://github.com/motdotla/dotenv/pull/304))
+
+## [5.0.0] - 2018-01-29
+
+### Added
+
+- Testing against Node v8 and v9
+- Documentation on trim behavior of values
+- Documentation on how to use with `import`
+
+### Changed
+
+- _Breaking_: default `path` is now `path.resolve(process.cwd(), '.env')`
+- _Breaking_: does not write over keys already in `process.env` if the key has a falsy value
+- using `const` and `let` instead of `var`
+
+### Removed
+
+- Testing against Node v7
+
+## [4.0.0] - 2016-12-23
+
+### Changed
+
+- Return Object with parsed content or error instead of false ([#165](https://github.com/motdotla/dotenv/pull/165)).
+
+### Removed
+
+- `verbose` option removed in favor of returning result.
+
+## [3.0.0] - 2016-12-20
+
+### Added
+
+- `verbose` option will log any error messages. Off by default.
+- parses email addresses correctly
+- allow importing config method directly in ES6
+
+### Changed
+
+- Suppress error messages by default ([#154](https://github.com/motdotla/dotenv/pull/154))
+- Ignoring more files for NPM to make package download smaller
+
+### Fixed
+
+- False positive test due to case-sensitive variable ([#124](https://github.com/motdotla/dotenv/pull/124))
+
+### Removed
+
+- `silent` option removed in favor of `verbose`
+
+## [2.0.0] - 2016-01-20
+
+### Added
+
+- CHANGELOG to ["make it easier for users and contributors to see precisely what notable changes have been made between each release"](http://keepachangelog.com/). Linked to from README
+- LICENSE to be more explicit about what was defined in `package.json`. Linked to from README
+- Testing nodejs v4 on travis-ci
+- added examples of how to use dotenv in different ways
+- return parsed object on success rather than boolean true
+
+### Changed
+
+- README has shorter description not referencing ruby gem since we don't have or want feature parity
+
+### Removed
+
+- Variable expansion and escaping so environment variables are encouraged to be fully orthogonal
+
+## [1.2.0] - 2015-06-20
+
+### Added
+
+- Preload hook to require dotenv without including it in your code
+
+### Changed
+
+- clarified license to be "BSD-2-Clause" in `package.json`
+
+### Fixed
+
+- retain spaces in string vars
+
+## [1.1.0] - 2015-03-31
+
+### Added
+
+- Silent option to silence `console.log` when `.env` missing
+
+## [1.0.0] - 2015-03-13
+
+### Removed
+
+- support for multiple `.env` files. should always use one `.env` file for the current environment
+
+[7.0.0]: https://github.com/motdotla/dotenv/compare/v6.2.0...v7.0.0
+[6.2.0]: https://github.com/motdotla/dotenv/compare/v6.1.0...v6.2.0
+[6.1.0]: https://github.com/motdotla/dotenv/compare/v6.0.0...v6.1.0
+[6.0.0]: https://github.com/motdotla/dotenv/compare/v5.0.0...v6.0.0
+[5.0.0]: https://github.com/motdotla/dotenv/compare/v4.0.0...v5.0.0
+[4.0.0]: https://github.com/motdotla/dotenv/compare/v3.0.0...v4.0.0
+[3.0.0]: https://github.com/motdotla/dotenv/compare/v2.0.0...v3.0.0
+[2.0.0]: https://github.com/motdotla/dotenv/compare/v1.2.0...v2.0.0
+[1.2.0]: https://github.com/motdotla/dotenv/compare/v1.1.0...v1.2.0
+[1.1.0]: https://github.com/motdotla/dotenv/compare/v1.0.0...v1.1.0
+[1.0.0]: https://github.com/motdotla/dotenv/compare/v0.4.0...v1.0.0
diff --git a/backend/node_modules/dotenv/LICENSE b/backend/node_modules/dotenv/LICENSE
new file mode 100644
index 0000000..c430ad8
--- /dev/null
+++ b/backend/node_modules/dotenv/LICENSE
@@ -0,0 +1,23 @@
+Copyright (c) 2015, Scott Motte
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/backend/node_modules/dotenv/README-es.md b/backend/node_modules/dotenv/README-es.md
new file mode 100644
index 0000000..154c139
--- /dev/null
+++ b/backend/node_modules/dotenv/README-es.md
@@ -0,0 +1,448 @@
+<div align="center">
+🎉 announcing <a href="https://github.com/dotenvx/dotenvx">dotenvx</a>. <em>run anywhere, multi-environment, encrypted envs</em>.
+</div>
+
+&nbsp;
+
+<div align="center">
+
+<p>
+  <sup>
+    <a href="https://github.com/sponsors/motdotla">Dotenv es apoyado por la comunidad.</a>
+  </sup>
+</p>
+<sup>Gracias espaciales a:</sup>
+<br>
+<br>
+<a href="https://www.warp.dev/?utm_source=github&utm_medium=referral&utm_campaign=dotenv_p_20220831">
+  <div>
+    <img src="https://res.cloudinary.com/dotenv-org/image/upload/v1661980709/warp_hi8oqj.png" width="230" alt="Warp">
+  </div>
+  <b>Warp es una rápida e impresionante terminal basada en Rust, reinventado para funcionar como una aplicación moderna.</b>
+  <div>
+    <sup>Haga más en la CLI con edición de texto real, resultado básado en bloques, y busqueda de comandos de IA.</sup>
+  </div>
+</a>
+<br>
+<a href="https://retool.com/?utm_source=sponsor&utm_campaign=dotenv">
+  <div>
+    <img src="https://res.cloudinary.com/dotenv-org/image/upload/c_scale,w_300/v1664466968/logo-full-black_vidfqf.png" width="270" alt="Retool">
+  </div>
+  <b>Retool ayuda a los desarrolladores a crear software interno personalizado, como aplicaciones CRUD y paneles de administración, realmente rápido.</b>
+  <div>
+    <sup>Construya Interfaces de Usuario de forma visual con componentes flexibles, conéctese a cualquier fuente de datos, y escriba lógica de negocio en JavaScript.</sup>
+  </div>
+</a>
+<br>
+<a href="https://workos.com/?utm_campaign=github_repo&utm_medium=referral&utm_content=dotenv&utm_source=github">
+  <div>
+    <img src="https://res.cloudinary.com/dotenv-org/image/upload/c_scale,w_400/v1665605496/68747470733a2f2f73696e647265736f726875732e636f6d2f6173736574732f7468616e6b732f776f726b6f732d6c6f676f2d77686974652d62672e737667_zdmsbu.svg" width="270" alt="WorkOS">
+  </div>
+  <b>Su Apliación, Lista para la Empresa.</b>
+  <div>
+    <sup>Agrega Inicio de Sesión Único, Autenticación Multi-Factor, y mucho más, en minutos en lugar de meses.</sup>
+  </div>
+</a>
+<hr>
+<br>
+<br>
+<br>
+<br>
+
+</div>
+
+# dotenv [![NPM version](https://img.shields.io/npm/v/dotenv.svg?style=flat-square)](https://www.npmjs.com/package/dotenv)
+
+<img src="https://raw.githubusercontent.com/motdotla/dotenv/master/dotenv.svg" alt="dotenv" align="right" width="200" />
+
+Dotenv es un módulo de dependencia cero que carga las variables de entorno desde un archivo `.env` en [`process.env`](https://nodejs.org/docs/latest/api/process.html#process_process_env). El almacenamiento de la configuración del entorno separado del código está basado en la metodología [The Twelve-Factor App](http://12factor.net/config).
+
+[![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat-square)](https://github.com/feross/standard)
+[![LICENSE](https://img.shields.io/github/license/motdotla/dotenv.svg)](LICENSE)
+
+## Instalación
+
+```bash
+# instalación local (recomendado)
+npm install dotenv --save
+```
+
+O installación con yarn? `yarn add dotenv`
+
+## Uso
+
+Cree un archivo `.env` en la raíz de su proyecto:
+
+```dosini
+S3_BUCKET="YOURS3BUCKET"
+SECRET_KEY="YOURSECRETKEYGOESHERE"
+```
+
+Tan prónto como sea posible en su aplicación, importe y configure dotenv:
+
+```javascript
+require('dotenv').config()
+console.log(process.env) // elimine esto después que haya confirmado que esta funcionando
+```
+
+.. o usa ES6?
+
+```javascript
+import * as dotenv from 'dotenv' // vea en https://github.com/motdotla/dotenv#como-uso-dotenv-con-import
+// REVISAR LINK DE REFERENCIA DE IMPORTACIÓN
+dotenv.config()
+import express from 'express'
+```
+
+Eso es todo. `process.env` ahora tiene las claves y los valores que definiste en tu archivo `.env`:
+
+```javascript
+require('dotenv').config()
+
+...
+
+s3.getBucketCors({Bucket: process.env.S3_BUCKET}, function(err, data) {})
+```
+
+### Valores multilínea
+
+Si necesita variables de varias líneas, por ejemplo, claves privadas, ahora se admiten en la versión (`>= v15.0.0`) con saltos de línea:
+
+```dosini
+PRIVATE_KEY="-----BEGIN RSA PRIVATE KEY-----
+...
+Kh9NV...
+...
+-----END RSA PRIVATE KEY-----"
+```
+
+Alternativamente, puede usar comillas dobles y usar el carácter `\n`:
+
+```dosini
+PRIVATE_KEY="-----BEGIN RSA PRIVATE KEY-----\nKh9NV...\n-----END RSA PRIVATE KEY-----\n"
+```
+
+### Comentarios
+
+Los comentarios pueden ser agregados en tu archivo o en la misma línea:
+
+```dosini
+# This is a comment
+SECRET_KEY=YOURSECRETKEYGOESHERE # comment
+SECRET_HASH="something-with-a-#-hash"
+```
+
+Los comentarios comienzan donde existe un `#`, entonces, si su valor contiene un `#`, enciérrelo entre comillas. Este es un cambio importante desde la versión `>= v15.0.0` en adelante.
+
+### Análisis
+
+El motor que analiza el contenido de su archivo que contiene variables de entorno está disponible para su uso. Este Acepta una Cadena o un Búfer y devolverá un Objeto con las claves y los valores analizados.
+
+```javascript
+const dotenv = require('dotenv')
+const buf = Buffer.from('BASICO=basico')
+const config = dotenv.parse(buf) // devolverá un objeto
+console.log(typeof config, config) // objeto { BASICO : 'basico' }
+```
+
+### Precarga
+
+Puede usar el `--require` (`-r`) [opción de línea de comando](https://nodejs.org/api/cli.html#-r---require-module) para precargar dotenv. Al hacer esto, no necesita requerir ni cargar dotnev en el código de su aplicación.
+
+```bash
+$ node -r dotenv/config tu_script.js
+```
+
+Las opciones de configuración a continuación se admiten como argumentos de línea de comandos en el formato `dotenv_config_<option>=value`
+
+```bash
+$ node -r dotenv/config tu_script.js dotenv_config_path=/custom/path/to/.env dotenv_config_debug=true
+```
+
+Además, puede usar variables de entorno para establecer opciones de configuración. Los argumentos de línea de comandos precederán a estos.
+
+```bash
+$ DOTENV_CONFIG_<OPTION>=value node -r dotenv/config tu_script.js
+```
+
+```bash
+$ DOTENV_CONFIG_ENCODING=latin1 DOTENV_CONFIG_DEBUG=true node -r dotenv/config tu_script.js dotenv_config_path=/custom/path/to/.env
+```
+
+### Expansión Variable
+
+Necesitaras agregar el valor de otro variable en una de sus variables? Usa [dotenv-expand](https://github.com/motdotla/dotenv-expand).
+
+### Sincronizando
+
+Necesitas mentener sincronizados los archivos `.env` entre maquinas, entornos, o miembros del equipo? Usa 
+[dotenv-vault](https://github.com/dotenv-org/dotenv-vault).
+
+## Ejemplos
+
+Vea [ejemplos](https://github.com/dotenv-org/examples) sobre el uso de dotenv con varios frameworks, lenguajes y configuraciones.
+
+* [nodejs](https://github.com/dotenv-org/examples/tree/master/dotenv-nodejs)
+* [nodejs (depurar en)](https://github.com/dotenv-org/examples/tree/master/dotenv-nodejs-debug)
+* [nodejs (anular en)](https://github.com/dotenv-org/examples/tree/master/dotenv-nodejs-override)
+* [esm](https://github.com/dotenv-org/examples/tree/master/dotenv-esm)
+* [esm (precarga)](https://github.com/dotenv-org/examples/tree/master/dotenv-esm-preload)
+* [typescript](https://github.com/dotenv-org/examples/tree/master/dotenv-typescript)
+* [typescript parse](https://github.com/dotenv-org/examples/tree/master/dotenv-typescript-parse)
+* [typescript config](https://github.com/dotenv-org/examples/tree/master/dotenv-typescript-config)
+* [webpack](https://github.com/dotenv-org/examples/tree/master/dotenv-webpack)
+* [webpack (plugin)](https://github.com/dotenv-org/examples/tree/master/dotenv-webpack2)
+* [react](https://github.com/dotenv-org/examples/tree/master/dotenv-react)
+* [react (typescript)](https://github.com/dotenv-org/examples/tree/master/dotenv-react-typescript)
+* [express](https://github.com/dotenv-org/examples/tree/master/dotenv-express)
+* [nestjs](https://github.com/dotenv-org/examples/tree/master/dotenv-nestjs)
+
+## Documentación
+
+Dotenv expone dos funciones:
+
+* `configuración`
+* `analizar`
+
+### Configuración
+
+`Configuración` leerá su archivo `.env`, analizará el contenido, lo asignará a [`process.env`](https://nodejs.org/docs/latest/api/process.html#process_process_env),
+y devolverá un Objeto con una clave `parsed` que contiene el contenido cargado o una clave `error` si falla.
+
+```js
+const result = dotenv.config()
+
+if (result.error) {
+  throw result.error
+}
+
+console.log(result.parsed)
+```
+
+Adicionalmente, puede pasar opciones a `configuracion`.
+
+#### Opciones
+
+##### Ruta
+
+Por defecto: `path.resolve(process.cwd(), '.env')`
+
+Especifique una ruta personalizada si el archivo que contiene las variables de entorno se encuentra localizado en otro lugar.
+
+```js
+require('dotenv').config({ path: '/personalizado/ruta/a/.env' })
+```
+
+##### Codificación
+
+Por defecto: `utf8`
+
+Especifique la codificación del archivo que contiene las variables de entorno.
+
+```js
+require('dotenv').config({ encoding: 'latin1' })
+```
+
+##### Depurar
+
+Por defecto: `false`
+
+Active el registro de ayuda para depurar por qué ciertas claves o valores no se inician como lo esperabas.
+
+```js
+require('dotenv').config({ debug: process.env.DEBUG })
+```
+
+##### Anular
+
+Por defecto: `false`
+
+Anule cualquier variable de entorno que ya se haya configurada en su maquina con los valores de su archivo .env.
+
+```js
+require('dotenv').config({ override: true })
+```
+
+### Analizar
+
+El motor que analiza el contenido del archivo que contiene las variables de entorno está disponible para su uso. Acepta una Cadena o un Búfer y retornará un objecto con los valores analizados.
+
+```js
+const dotenv = require('dotenv')
+const buf = Buffer.from('BASICO=basico')
+const config = dotenv.parse(buf) // devolverá un objeto
+console.log(typeof config, config) // objeto { BASICO : 'basico' }
+```
+
+#### Opciones
+
+##### Depurar
+
+Por defecto: `false`
+
+Active el registro de ayuda para depurar por qué ciertas claves o valores no se inician como lo esperabas.
+
+```js
+const dotenv = require('dotenv')
+const buf = Buffer.from('hola mundo')
+const opt = { debug: true }
+const config = dotenv.parse(buf, opt)
+// espere por un mensaje de depuración porque el búfer no esta listo KEY=VAL
+```
+
+## FAQ
+
+### ¿Por qué el archivo `.env` no carga mis variables de entorno correctamente?
+
+Lo más probable es que su archivo `.env` no esté en el lugar correcto. [Vea este stack overflow](https://stackoverflow.com/questions/42335016/dotenv-file-is-not-loading-environment-variables).
+
+Active el modo de depuración y vuelva a intentarlo...
+
+```js
+require('dotenv').config({ debug: true })
+```
+
+Recibirá un error apropiado en su consola.
+
+### ¿Debo confirmar mi archivo `.env`?
+
+No. Recomendamos **enfáticamente** no enviar su archivo `.env` a la versión de control. Solo debe incluir los valores especificos del entorno, como la base de datos, contraseñas o claves API.
+
+### ¿Debería tener multiples archivos `.env`?
+
+No. Recomendamos **enfáticamente** no tener un archivo `.env` "principal" y un archivo `.env` de "entorno" como `.env.test`. Su configuración debe variar entre implementaciones y no debe compartir valores entre entornos.
+
+> En una Aplicación de Doce Factores, las variables de entorno son controles diferenciados, cada uno totalmente independiente a otras variables de entorno. Nunca se agrupan como "entornos", sino que se gestionan de manera independiente para cada despliegue. Este es un modelo que se escala sin problemas a medida que la aplicación se expande de forma natural en más despliegues a lo largo de su vida.
+>
+> – [La Apliación de los Doce Factores](https://12factor.net/es/)
+
+### ¿Qué reglas sigue el motor de análisis?
+
+El motor de análisis actualmente admite las siguientes reglas:
+
+- `BASICO=basico` se convierte en `{BASICO: 'basico'}`
+- las líneas vacías se saltan
+- las líneas que comienzan con `#` se tratan como comentarios
+- `#` marca el comienzo de un comentario (a menos que el valor esté entre comillas)
+- valores vacíos se convierten en cadenas vacías (`VACIO=` se convierte en `{VACIO: ''}`)
+- las comillas internas se mantienen (piensa en JSON) (`JSON={"foo": "bar"}` se convierte en `{JSON:"{\"foo\": \"bar\"}"`)
+- los espacios en blanco se eliminan de ambos extremos de los valores no citanos (aprende más en [`trim`](https://developer.mozilla.org/es/docs/Web/JavaScript/Reference/Global_Objects/String/Trim)) (`FOO=  algo ` se convierte en `{FOO: 'algo'}`)
+- los valores entre comillas simples y dobles se escapan (`CITA_SIMPLE='citado'` se convierte en `{CITA_SIMPLE: "citado"}`)
+- los valores entre comillas simples y dobles mantienen los espacios en blanco en ambos extremos  (`FOO="  algo  "` se convierte en `{FOO: '  algo  '}`)
+- los valores entre comillas dobles expanden nuevas líneas (`MULTILINEA="nueva\nlínea"` se convierte en
+
+```
+{MULTILINEA: 'nueva
+línea'}
+```
+
+- se admite la comilla simple invertida (`` SIGNO_ACENTO=`Esto tiene comillas 'simples' y "dobles" en su interior.` ``)
+
+### ¿Qué sucede con las variables de entorno que ya estaban configuradas?
+
+Por defecto, nunca modificaremos ninguna variable de entorno que ya haya sido establecida. En particular, si hay una variable en su archivo `.env` que colisiona con una que ya existe en su entorno, entonces esa variable se omitirá.
+
+Si por el contrario, quieres anular `process.env` utiliza la opción `override`.
+
+```javascript
+require('dotenv').config({ override: true })
+```
+
+### ¿Por qué mis variables de entorno no aparecen para React?
+
+Su código React se ejecuta en Webpack, donde el módulo `fs` o incluso el propio `process` global no son accesibles fuera-de-la-caja. El módulo `process.env` sólo puede ser inyectado a través de la configuración de Webpack.
+
+Si estás usando [`react-scripts`](https://www.npmjs.com/package/react-scripts), el cual se distribuye a través de [`create-react-app`](https://create-react-app.dev/), tiene dotenv incorporado pero con una singularidad. Escriba sus variables de entorno con `REACT_APP_`. Vea [este stack overflow](https://stackoverflow.com/questions/42182577/is-it-possible-to-use-dotenv-in-a-react-project) para más detalles.
+
+Si estás utilizando otros frameworks (por ejemplo, Next.js, Gatsby...), debes consultar su documentación para saber cómo injectar variables de entorno en el cliente.
+
+### ¿Puedo personalizar/escribir plugins para dotenv?
+
+Sí! `dotenv.config()` devuelve un objeto que representa el archivo `.env` analizado. Esto te da todo lo que necesitas para poder establecer valores en `process.env`. Por ejemplo:
+
+```js
+const dotenv = require('dotenv')
+const variableExpansion = require('dotenv-expand')
+const miEnv = dotenv.config()
+variableExpansion(miEnv)
+```
+
+### Cómo uso dotnev con `import`?
+
+Simplemente..
+
+```javascript
+// index.mjs (ESM)
+import * as dotenv from 'dotenv' // vea https://github.com/motdotla/dotenv#como-uso-dotenv-con-import
+dotenv.config()
+import express from 'express'
+```
+
+Un poco de historia...
+
+> Cuando se ejecuta un módulo que contiene una sentencia `import`, los módulos que importa serán cargados primero, y luego se ejecuta cada bloque del módulo en un recorrido en profundidad del gráfico de dependencias, evitando los ciclos al saltarse todo lo que ya se ha ejecutado.
+>
+> – [ES6 en Profundidad: Módulos](https://hacks.mozilla.org/2015/08/es6-in-depth-modules/)
+
+¿Qué significa esto en lenguaje sencillo? Significa que se podrías pensar que lo siguiente funcionaría pero no lo hará.
+
+```js
+// notificarError.mjs
+import { Cliente } from 'mejor-servicio-para-notificar-error'
+
+export default new Client(process.env.CLAVE_API)
+
+// index.mjs
+import dotenv from 'dotenv'
+dotenv.config()
+
+import notificarError from './notificarError.mjs'
+notificarError.report(new Error('ejemplo documentado'))
+```
+
+`process.env.CLAVE_API` será vacio.
+
+En su lugar, el código anterior debe ser escrito como...
+
+```js
+// notificarError.mjs
+import { Cliente } from 'mejor-servicio-para-notificar-errores'
+
+export default new Client(process.env.CLAVE_API)
+
+// index.mjs
+import * as dotenv from 'dotenv'
+dotenv.config()
+
+import notificarError from './notificarError.mjs'
+notificarError.report(new Error('ejemplo documentado'))
+```
+
+¿Esto tiene algo de sentido? Esto es poco poco intuitivo, pero es como funciona la importación de módulos en ES6. Aquí hay un ejemplo [ejemplo práctico de esta trampa](https://github.com/dotenv-org/examples/tree/master/dotenv-es6-import-pitfall).
+
+Existen dos arternativas a este planteamiento:
+
+1. Precarga dotenv: `node --require dotenv/config index.js` (_Nota: no es necesario usar `import` dotenv con este método_)
+2. Cree un archivo separado que ejecutará `config` primero como se describe en [este comentario #133](https://github.com/motdotla/dotenv/issues/133#issuecomment-255298822)
+
+### ¿Qué pasa con la expansión de variable?
+
+Prueba [dotenv-expand](https://github.com/motdotla/dotenv-expand)
+
+### ¿Qué pasa con la sincronización y la seguridad de los archivos .env?
+
+Vea [dotenv-vault](https://github.com/dotenv-org/dotenv-vault)
+
+## Guía de contribución
+
+Vea [CONTRIBUTING.md](CONTRIBUTING.md)
+
+## REGISTRO DE CAMBIOS
+
+Vea [CHANGELOG.md](CHANGELOG.md)
+
+## ¿Quiénes utilizan dotenv?
+
+[Estos módulos npm dependen de él.](https://www.npmjs.com/browse/depended/dotenv)
+
+Los proyectos que lo amplían suelen utilizar la [palabra clave "dotenv" en npm](https://www.npmjs.com/search?q=keywords:dotenv).
diff --git a/backend/node_modules/dotenv/README.md b/backend/node_modules/dotenv/README.md
new file mode 100644
index 0000000..3bd511c
--- /dev/null
+++ b/backend/node_modules/dotenv/README.md
@@ -0,0 +1,651 @@
+<div align="center">
+🎉 announcing <a href="https://github.com/dotenvx/dotenvx">dotenvx</a>. <em>run anywhere, multi-environment, encrypted envs</em>.
+</div>
+
+&nbsp;
+
+<div align="center">
+
+<p>
+  <sup>
+    <a href="https://github.com/sponsors/motdotla">Dotenv is supported by the community.</a>
+  </sup>
+</p>
+<sup>Special thanks to:</sup>
+<br>
+<br>
+<a href="https://www.warp.dev/?utm_source=github&utm_medium=referral&utm_campaign=dotenv_p_20220831">
+  <div>
+    <img src="https://res.cloudinary.com/dotenv-org/image/upload/v1661980709/warp_hi8oqj.png" width="230" alt="Warp">
+  </div>
+  <b>Warp is a blazingly fast, Rust-based terminal reimagined to work like a modern app.</b>
+  <div>
+    <sup>Get more done in the CLI with real text editing, block-based output, and AI command search.</sup>
+  </div>
+</a>
+<br>
+<a href="https://workos.com/?utm_campaign=github_repo&utm_medium=referral&utm_content=dotenv&utm_source=github">
+  <div>
+    <img src="https://res.cloudinary.com/dotenv-org/image/upload/c_scale,w_400/v1665605496/68747470733a2f2f73696e647265736f726875732e636f6d2f6173736574732f7468616e6b732f776f726b6f732d6c6f676f2d77686974652d62672e737667_zdmsbu.svg" width="270" alt="WorkOS">
+  </div>
+  <b>Your App, Enterprise Ready.</b>
+  <div>
+    <sup>Add Single Sign-On, Multi-Factor Auth, and more, in minutes instead of months.</sup>
+  </div>
+</a>
+<hr>
+</div>
+
+# dotenv [![NPM version](https://img.shields.io/npm/v/dotenv.svg?style=flat-square)](https://www.npmjs.com/package/dotenv)
+
+<img src="https://raw.githubusercontent.com/motdotla/dotenv/master/dotenv.svg" alt="dotenv" align="right" width="200" />
+
+Dotenv is a zero-dependency module that loads environment variables from a `.env` file into [`process.env`](https://nodejs.org/docs/latest/api/process.html#process_process_env). Storing configuration in the environment separate from code is based on [The Twelve-Factor App](https://12factor.net/config) methodology.
+
+[![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat-square)](https://github.com/feross/standard)
+[![LICENSE](https://img.shields.io/github/license/motdotla/dotenv.svg)](LICENSE)
+[![codecov](https://codecov.io/gh/motdotla/dotenv-expand/graph/badge.svg?token=pawWEyaMfg)](https://codecov.io/gh/motdotla/dotenv-expand)
+
+* [🌱 Install](#-install)
+* [🏗️ Usage (.env)](#%EF%B8%8F-usage)
+* [🌴 Multiple Environments 🆕](#-manage-multiple-environments)
+* [🚀 Deploying (encryption) 🆕](#-deploying)
+* [📚 Examples](#-examples)
+* [📖 Docs](#-documentation)
+* [❓ FAQ](#-faq)
+* [⏱️ Changelog](./CHANGELOG.md)
+
+## 🌱 Install
+
+```bash
+# install locally (recommended)
+npm install dotenv --save
+```
+
+Or installing with yarn? `yarn add dotenv`
+
+## 🏗️ Usage
+
+<a href="https://www.youtube.com/watch?v=YtkZR0NFd1g">
+<div align="right">
+<img src="https://img.youtube.com/vi/YtkZR0NFd1g/hqdefault.jpg" alt="how to use dotenv video tutorial" align="right" width="330" />
+<img src="https://simpleicons.vercel.app/youtube/ff0000" alt="youtube/@dotenvorg" align="right" width="24" />
+</div>
+</a>
+
+Create a `.env` file in the root of your project (if using a monorepo structure like `apps/backend/app.js`, put it in the root of the folder where your `app.js` process runs):
+
+```dosini
+S3_BUCKET="YOURS3BUCKET"
+SECRET_KEY="YOURSECRETKEYGOESHERE"
+```
+
+As early as possible in your application, import and configure dotenv:
+
+```javascript
+require('dotenv').config()
+console.log(process.env) // remove this after you've confirmed it is working
+```
+
+.. [or using ES6?](#how-do-i-use-dotenv-with-import)
+
+```javascript
+import 'dotenv/config'
+```
+
+That's it. `process.env` now has the keys and values you defined in your `.env` file:
+
+```javascript
+require('dotenv').config()
+// or import 'dotenv/config' if you're using ES6
+
+...
+
+s3.getBucketCors({Bucket: process.env.S3_BUCKET}, function(err, data) {})
+```
+
+### Multiline values
+
+If you need multiline variables, for example private keys, those are now supported (`>= v15.0.0`) with line breaks:
+
+```dosini
+PRIVATE_KEY="-----BEGIN RSA PRIVATE KEY-----
+...
+Kh9NV...
+...
+-----END RSA PRIVATE KEY-----"
+```
+
+Alternatively, you can double quote strings and use the `\n` character:
+
+```dosini
+PRIVATE_KEY="-----BEGIN RSA PRIVATE KEY-----\nKh9NV...\n-----END RSA PRIVATE KEY-----\n"
+```
+
+### Comments
+
+Comments may be added to your file on their own line or inline:
+
+```dosini
+# This is a comment
+SECRET_KEY=YOURSECRETKEYGOESHERE # comment
+SECRET_HASH="something-with-a-#-hash"
+```
+
+Comments begin where a `#` exists, so if your value contains a `#` please wrap it in quotes. This is a breaking change from `>= v15.0.0` and on.
+
+### Parsing
+
+The engine which parses the contents of your file containing environment variables is available to use. It accepts a String or Buffer and will return an Object with the parsed keys and values.
+
+```javascript
+const dotenv = require('dotenv')
+const buf = Buffer.from('BASIC=basic')
+const config = dotenv.parse(buf) // will return an object
+console.log(typeof config, config) // object { BASIC : 'basic' }
+```
+
+### Preload
+
+> Note: Consider using [`dotenvx`](https://github.com/dotenvx/dotenvx) instead of preloading. I am now doing (and recommending) so.
+>
+> It serves the same purpose (you do not need to require and load dotenv), adds better debugging, and works with ANY language, framework, or platform. – [motdotla](https://github.com/motdotla)
+
+You can use the `--require` (`-r`) [command line option](https://nodejs.org/api/cli.html#-r---require-module) to preload dotenv. By doing this, you do not need to require and load dotenv in your application code.
+
+```bash
+$ node -r dotenv/config your_script.js
+```
+
+The configuration options below are supported as command line arguments in the format `dotenv_config_<option>=value`
+
+```bash
+$ node -r dotenv/config your_script.js dotenv_config_path=/custom/path/to/.env dotenv_config_debug=true
+```
+
+Additionally, you can use environment variables to set configuration options. Command line arguments will precede these.
+
+```bash
+$ DOTENV_CONFIG_<OPTION>=value node -r dotenv/config your_script.js
+```
+
+```bash
+$ DOTENV_CONFIG_ENCODING=latin1 DOTENV_CONFIG_DEBUG=true node -r dotenv/config your_script.js dotenv_config_path=/custom/path/to/.env
+```
+
+### Variable Expansion
+
+You need to add the value of another variable in one of your variables? Use [dotenv-expand](https://github.com/motdotla/dotenv-expand).
+
+### Command Substitution
+
+Use [dotenvx](https://github.com/dotenvx/dotenvx) to use command substitution.
+
+Add the output of a command to one of your variables in your .env file.
+
+```ini
+# .env
+DATABASE_URL="postgres://$(whoami)@localhost/my_database"
+```
+```js
+// index.js
+console.log('DATABASE_URL', process.env.DATABASE_URL)
+```
+```sh
+$ dotenvx run --debug -- node index.js
+[dotenvx@0.14.1] injecting env (1) from .env
+DATABASE_URL postgres://yourusername@localhost/my_database
+```
+
+### Syncing
+
+You need to keep `.env` files in sync between machines, environments, or team members? Use [dotenvx](https://github.com/dotenvx/dotenvx) to encrypt your `.env` files and safely include them in source control. This still subscribes to the twelve-factor app rules by generating a decryption key separate from code.
+
+### Multiple Environments
+
+Use [dotenvx](https://github.com/dotenvx/dotenvx) to generate `.env.ci`, `.env.production` files, and more.
+
+### Deploying
+
+You need to deploy your secrets in a cloud-agnostic manner? Use [dotenvx](https://github.com/dotenvx/dotenvx) to generate a private decryption key that is set on your production server.
+
+## 🌴 Manage Multiple Environments
+
+Use [dotenvx](https://github.com/dotenvx/dotenvx)
+
+Run any environment locally. Create a `.env.ENVIRONMENT` file and use `--env-file` to load it. It's straightforward, yet flexible.
+
+```bash
+$ echo "HELLO=production" > .env.production
+$ echo "console.log('Hello ' + process.env.HELLO)" > index.js
+
+$ dotenvx run --env-file=.env.production -- node index.js
+Hello production
+> ^^
+```
+
+or with multiple .env files
+
+```bash
+$ echo "HELLO=local" > .env.local
+$ echo "HELLO=World" > .env
+$ echo "console.log('Hello ' + process.env.HELLO)" > index.js
+
+$ dotenvx run --env-file=.env.local --env-file=.env -- node index.js
+Hello local
+```
+
+[more environment examples](https://dotenvx.com/docs/quickstart/environments)
+
+## 🚀 Deploying
+
+Use [dotenvx](https://github.com/dotenvx/dotenvx).
+
+Add encryption to your `.env` files with a single command. Pass the `--encrypt` flag.
+
+```
+$ dotenvx set HELLO Production --encrypt -f .env.production
+$ echo "console.log('Hello ' + process.env.HELLO)" > index.js
+
+$ DOTENV_PRIVATE_KEY_PRODUCTION="<.env.production private key>" dotenvx run -- node index.js
+[dotenvx] injecting env (2) from .env.production
+Hello Production
+```
+
+[learn more](https://github.com/dotenvx/dotenvx?tab=readme-ov-file#encryption)
+
+## 📚 Examples
+
+See [examples](https://github.com/dotenv-org/examples) of using dotenv with various frameworks, languages, and configurations.
+
+* [nodejs](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-nodejs)
+* [nodejs (debug on)](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-nodejs-debug)
+* [nodejs (override on)](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-nodejs-override)
+* [nodejs (processEnv override)](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-custom-target)
+* [esm](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-esm)
+* [esm (preload)](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-esm-preload)
+* [typescript](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-typescript)
+* [typescript parse](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-typescript-parse)
+* [typescript config](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-typescript-config)
+* [webpack](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-webpack)
+* [webpack (plugin)](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-webpack2)
+* [react](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-react)
+* [react (typescript)](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-react-typescript)
+* [express](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-express)
+* [nestjs](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-nestjs)
+* [fastify](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-fastify)
+
+## 📖 Documentation
+
+Dotenv exposes four functions:
+
+* `config`
+* `parse`
+* `populate`
+* `decrypt`
+
+### Config
+
+`config` will read your `.env` file, parse the contents, assign it to
+[`process.env`](https://nodejs.org/docs/latest/api/process.html#process_process_env),
+and return an Object with a `parsed` key containing the loaded content or an `error` key if it failed.
+
+```js
+const result = dotenv.config()
+
+if (result.error) {
+  throw result.error
+}
+
+console.log(result.parsed)
+```
+
+You can additionally, pass options to `config`.
+
+#### Options
+
+##### path
+
+Default: `path.resolve(process.cwd(), '.env')`
+
+Specify a custom path if your file containing environment variables is located elsewhere.
+
+```js
+require('dotenv').config({ path: '/custom/path/to/.env' })
+```
+
+By default, `config` will look for a file called .env in the current working directory.
+
+Pass in multiple files as an array, and they will be parsed in order and combined with `process.env` (or `option.processEnv`, if set). The first value set for a variable will win, unless the `options.override` flag is set, in which case the last value set will win.  If a value already exists in `process.env` and the `options.override` flag is NOT set, no changes will be made to that value. 
+
+```js  
+require('dotenv').config({ path: ['.env.local', '.env'] })
+```
+
+##### encoding
+
+Default: `utf8`
+
+Specify the encoding of your file containing environment variables.
+
+```js
+require('dotenv').config({ encoding: 'latin1' })
+```
+
+##### debug
+
+Default: `false`
+
+Turn on logging to help debug why certain keys or values are not being set as you expect.
+
+```js
+require('dotenv').config({ debug: process.env.DEBUG })
+```
+
+##### override
+
+Default: `false`
+
+Override any environment variables that have already been set on your machine with values from your .env file(s). If multiple files have been provided in `option.path` the override will also be used as each file is combined with the next. Without `override` being set, the first value wins. With `override` set the last value wins. 
+
+```js
+require('dotenv').config({ override: true })
+```
+
+##### processEnv
+
+Default: `process.env`
+
+Specify an object to write your secrets to. Defaults to `process.env` environment variables.
+
+```js
+const myObject = {}
+require('dotenv').config({ processEnv: myObject })
+
+console.log(myObject) // values from .env
+console.log(process.env) // this was not changed or written to
+```
+
+### Parse
+
+The engine which parses the contents of your file containing environment
+variables is available to use. It accepts a String or Buffer and will return
+an Object with the parsed keys and values.
+
+```js
+const dotenv = require('dotenv')
+const buf = Buffer.from('BASIC=basic')
+const config = dotenv.parse(buf) // will return an object
+console.log(typeof config, config) // object { BASIC : 'basic' }
+```
+
+#### Options
+
+##### debug
+
+Default: `false`
+
+Turn on logging to help debug why certain keys or values are not being set as you expect.
+
+```js
+const dotenv = require('dotenv')
+const buf = Buffer.from('hello world')
+const opt = { debug: true }
+const config = dotenv.parse(buf, opt)
+// expect a debug message because the buffer is not in KEY=VAL form
+```
+
+### Populate
+
+The engine which populates the contents of your .env file to `process.env` is available for use. It accepts a target, a source, and options. This is useful for power users who want to supply their own objects.
+
+For example, customizing the source:
+
+```js
+const dotenv = require('dotenv')
+const parsed = { HELLO: 'world' }
+
+dotenv.populate(process.env, parsed)
+
+console.log(process.env.HELLO) // world
+```
+
+For example, customizing the source AND target:
+
+```js
+const dotenv = require('dotenv')
+const parsed = { HELLO: 'universe' }
+const target = { HELLO: 'world' } // empty object
+
+dotenv.populate(target, parsed, { override: true, debug: true })
+
+console.log(target) // { HELLO: 'universe' }
+```
+
+#### options
+
+##### Debug
+
+Default: `false`
+
+Turn on logging to help debug why certain keys or values are not being populated as you expect.
+
+##### override
+
+Default: `false`
+
+Override any environment variables that have already been set.
+
+## ❓ FAQ
+
+### Why is the `.env` file not loading my environment variables successfully?
+
+Most likely your `.env` file is not in the correct place. [See this stack overflow](https://stackoverflow.com/questions/42335016/dotenv-file-is-not-loading-environment-variables).
+
+Turn on debug mode and try again..
+
+```js
+require('dotenv').config({ debug: true })
+```
+
+You will receive a helpful error outputted to your console.
+
+### Should I commit my `.env` file?
+
+No. We **strongly** recommend against committing your `.env` file to version
+control. It should only include environment-specific values such as database
+passwords or API keys. Your production database should have a different
+password than your development database.
+
+### Should I have multiple `.env` files?
+
+We recommend creating one `.env` file per environment. Use `.env` for local/development, `.env.production` for production and so on. This still follows the twelve factor principles as each is attributed individually to its own environment. Avoid custom set ups that work in inheritance somehow (`.env.production` inherits values form `.env` for example). It is better to duplicate values if necessary across each `.env.environment` file.
+
+> In a twelve-factor app, env vars are granular controls, each fully orthogonal to other env vars. They are never grouped together as “environments”, but instead are independently managed for each deploy. This is a model that scales up smoothly as the app naturally expands into more deploys over its lifetime.
+>
+> – [The Twelve-Factor App](http://12factor.net/config)
+
+### What rules does the parsing engine follow?
+
+The parsing engine currently supports the following rules:
+
+- `BASIC=basic` becomes `{BASIC: 'basic'}`
+- empty lines are skipped
+- lines beginning with `#` are treated as comments
+- `#` marks the beginning of a comment (unless when the value is wrapped in quotes)
+- empty values become empty strings (`EMPTY=` becomes `{EMPTY: ''}`)
+- inner quotes are maintained (think JSON) (`JSON={"foo": "bar"}` becomes `{JSON:"{\"foo\": \"bar\"}"`)
+- whitespace is removed from both ends of unquoted values (see more on [`trim`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/Trim)) (`FOO=  some value  ` becomes `{FOO: 'some value'}`)
+- single and double quoted values are escaped (`SINGLE_QUOTE='quoted'` becomes `{SINGLE_QUOTE: "quoted"}`)
+- single and double quoted values maintain whitespace from both ends (`FOO="  some value  "` becomes `{FOO: '  some value  '}`)
+- double quoted values expand new lines (`MULTILINE="new\nline"` becomes
+
+```
+{MULTILINE: 'new
+line'}
+```
+
+- backticks are supported (`` BACKTICK_KEY=`This has 'single' and "double" quotes inside of it.` ``)
+
+### What happens to environment variables that were already set?
+
+By default, we will never modify any environment variables that have already been set. In particular, if there is a variable in your `.env` file which collides with one that already exists in your environment, then that variable will be skipped.
+
+If instead, you want to override `process.env` use the `override` option.
+
+```javascript
+require('dotenv').config({ override: true })
+```
+
+### How come my environment variables are not showing up for React?
+
+Your React code is run in Webpack, where the `fs` module or even the `process` global itself are not accessible out-of-the-box. `process.env` can only be injected through Webpack configuration.
+
+If you are using [`react-scripts`](https://www.npmjs.com/package/react-scripts), which is distributed through [`create-react-app`](https://create-react-app.dev/), it has dotenv built in but with a quirk. Preface your environment variables with `REACT_APP_`. See [this stack overflow](https://stackoverflow.com/questions/42182577/is-it-possible-to-use-dotenv-in-a-react-project) for more details.
+
+If you are using other frameworks (e.g. Next.js, Gatsby...), you need to consult their documentation for how to inject environment variables into the client.
+
+### Can I customize/write plugins for dotenv?
+
+Yes! `dotenv.config()` returns an object representing the parsed `.env` file. This gives you everything you need to continue setting values on `process.env`. For example:
+
+```js
+const dotenv = require('dotenv')
+const variableExpansion = require('dotenv-expand')
+const myEnv = dotenv.config()
+variableExpansion(myEnv)
+```
+
+### How do I use dotenv with `import`?
+
+Simply..
+
+```javascript
+// index.mjs (ESM)
+import 'dotenv/config' // see https://github.com/motdotla/dotenv#how-do-i-use-dotenv-with-import
+import express from 'express'
+```
+
+A little background..
+
+> When you run a module containing an `import` declaration, the modules it imports are loaded first, then each module body is executed in a depth-first traversal of the dependency graph, avoiding cycles by skipping anything already executed.
+>
+> – [ES6 In Depth: Modules](https://hacks.mozilla.org/2015/08/es6-in-depth-modules/)
+
+What does this mean in plain language? It means you would think the following would work but it won't.
+
+`errorReporter.mjs`:
+```js
+import { Client } from 'best-error-reporting-service'
+
+export default new Client(process.env.API_KEY)
+```
+`index.mjs`:
+```js
+// Note: this is INCORRECT and will not work
+import * as dotenv from 'dotenv'
+dotenv.config()
+
+import errorReporter from './errorReporter.mjs'
+errorReporter.report(new Error('documented example'))
+```
+
+`process.env.API_KEY` will be blank.
+
+Instead, `index.mjs` should be written as..
+
+```js
+import 'dotenv/config'
+
+import errorReporter from './errorReporter.mjs'
+errorReporter.report(new Error('documented example'))
+```
+
+Does that make sense? It's a bit unintuitive, but it is how importing of ES6 modules work. Here is a [working example of this pitfall](https://github.com/dotenv-org/examples/tree/master/usage/dotenv-es6-import-pitfall).
+
+There are two alternatives to this approach:
+
+1. Preload dotenv: `node --require dotenv/config index.js` (_Note: you do not need to `import` dotenv with this approach_)
+2. Create a separate file that will execute `config` first as outlined in [this comment on #133](https://github.com/motdotla/dotenv/issues/133#issuecomment-255298822)
+
+### Why am I getting the error `Module not found: Error: Can't resolve 'crypto|os|path'`?
+
+You are using dotenv on the front-end and have not included a polyfill. Webpack < 5 used to include these for you. Do the following:
+
+```bash
+npm install node-polyfill-webpack-plugin
+```
+
+Configure your `webpack.config.js` to something like the following.
+
+```js
+require('dotenv').config()
+
+const path = require('path');
+const webpack = require('webpack')
+
+const NodePolyfillPlugin = require('node-polyfill-webpack-plugin')
+
+module.exports = {
+  mode: 'development',
+  entry: './src/index.ts',
+  output: {
+    filename: 'bundle.js',
+    path: path.resolve(__dirname, 'dist'),
+  },
+  plugins: [
+    new NodePolyfillPlugin(),
+    new webpack.DefinePlugin({
+      'process.env': {
+        HELLO: JSON.stringify(process.env.HELLO)
+      }
+    }),
+  ]
+};
+```
+
+Alternatively, just use [dotenv-webpack](https://github.com/mrsteele/dotenv-webpack) which does this and more behind the scenes for you.
+
+### What about variable expansion?
+
+Try [dotenv-expand](https://github.com/motdotla/dotenv-expand)
+
+### What about syncing and securing .env files?
+
+Use [dotenvx](https://github.com/dotenvx/dotenvx)
+
+### What if I accidentally commit my `.env` file to code?
+
+Remove it, [remove git history](https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/removing-sensitive-data-from-a-repository) and then install the [git pre-commit hook](https://github.com/dotenvx/dotenvx#pre-commit) to prevent this from ever happening again. 
+
+```
+brew install dotenvx/brew/dotenvx
+dotenvx precommit --install
+```
+
+### How can I prevent committing my `.env` file to a Docker build?
+
+Use the [docker prebuild hook](https://dotenvx.com/docs/features/prebuild).
+
+```bash
+# Dockerfile
+...
+RUN curl -fsS https://dotenvx.sh/ | sh
+...
+RUN dotenvx prebuild
+CMD ["dotenvx", "run", "--", "node", "index.js"]
+```
+
+## Contributing Guide
+
+See [CONTRIBUTING.md](CONTRIBUTING.md)
+
+## CHANGELOG
+
+See [CHANGELOG.md](CHANGELOG.md)
+
+## Who's using dotenv?
+
+[These npm modules depend on it.](https://www.npmjs.com/browse/depended/dotenv)
+
+Projects that expand it often use the [keyword "dotenv" on npm](https://www.npmjs.com/search?q=keywords:dotenv).
diff --git a/backend/node_modules/dotenv/config.d.ts b/backend/node_modules/dotenv/config.d.ts
new file mode 100644
index 0000000..cb0ff5c
--- /dev/null
+++ b/backend/node_modules/dotenv/config.d.ts
@@ -0,0 +1 @@
+export {};
diff --git a/backend/node_modules/dotenv/config.js b/backend/node_modules/dotenv/config.js
new file mode 100644
index 0000000..b0b5576
--- /dev/null
+++ b/backend/node_modules/dotenv/config.js
@@ -0,0 +1,9 @@
+(function () {
+  require('./lib/main').config(
+    Object.assign(
+      {},
+      require('./lib/env-options'),
+      require('./lib/cli-options')(process.argv)
+    )
+  )
+})()
diff --git a/backend/node_modules/dotenv/lib/cli-options.js b/backend/node_modules/dotenv/lib/cli-options.js
new file mode 100644
index 0000000..09aca5b
--- /dev/null
+++ b/backend/node_modules/dotenv/lib/cli-options.js
@@ -0,0 +1,11 @@
+const re = /^dotenv_config_(encoding|path|debug|override|DOTENV_KEY)=(.+)$/
+
+module.exports = function optionMatcher (args) {
+  return args.reduce(function (acc, cur) {
+    const matches = cur.match(re)
+    if (matches) {
+      acc[matches[1]] = matches[2]
+    }
+    return acc
+  }, {})
+}
diff --git a/backend/node_modules/dotenv/lib/env-options.js b/backend/node_modules/dotenv/lib/env-options.js
new file mode 100644
index 0000000..7ebae3d
--- /dev/null
+++ b/backend/node_modules/dotenv/lib/env-options.js
@@ -0,0 +1,24 @@
+// ../config.js accepts options via environment variables
+const options = {}
+
+if (process.env.DOTENV_CONFIG_ENCODING != null) {
+  options.encoding = process.env.DOTENV_CONFIG_ENCODING
+}
+
+if (process.env.DOTENV_CONFIG_PATH != null) {
+  options.path = process.env.DOTENV_CONFIG_PATH
+}
+
+if (process.env.DOTENV_CONFIG_DEBUG != null) {
+  options.debug = process.env.DOTENV_CONFIG_DEBUG
+}
+
+if (process.env.DOTENV_CONFIG_OVERRIDE != null) {
+  options.override = process.env.DOTENV_CONFIG_OVERRIDE
+}
+
+if (process.env.DOTENV_CONFIG_DOTENV_KEY != null) {
+  options.DOTENV_KEY = process.env.DOTENV_CONFIG_DOTENV_KEY
+}
+
+module.exports = options
diff --git a/backend/node_modules/dotenv/lib/main.d.ts b/backend/node_modules/dotenv/lib/main.d.ts
new file mode 100644
index 0000000..a48c3c1
--- /dev/null
+++ b/backend/node_modules/dotenv/lib/main.d.ts
@@ -0,0 +1,153 @@
+// TypeScript Version: 3.0
+/// <reference types="node" />
+import type { URL } from 'url';
+
+export interface DotenvParseOutput {
+  [name: string]: string;
+}
+
+/**
+ * Parses a string or buffer in the .env file format into an object.
+ *
+ * See https://dotenvx.com/docs
+ *
+ * @param src - contents to be parsed. example: `'DB_HOST=localhost'`
+ * @returns an object with keys and values based on `src`. example: `{ DB_HOST : 'localhost' }`
+ */
+export function parse<T extends DotenvParseOutput = DotenvParseOutput>(
+  src: string | Buffer
+): T;
+
+export interface DotenvConfigOptions {
+  /**
+   * Default: `path.resolve(process.cwd(), '.env')`
+   *
+   * Specify a custom path if your file containing environment variables is located elsewhere.
+   * Can also be an array of strings, specifying multiple paths.
+   *
+   * example: `require('dotenv').config({ path: '/custom/path/to/.env' })`
+   * example: `require('dotenv').config({ path: ['/path/to/first.env', '/path/to/second.env'] })`
+   */
+  path?: string | string[] | URL;
+
+  /**
+   * Default: `utf8`
+   *
+   * Specify the encoding of your file containing environment variables.
+   *
+   * example: `require('dotenv').config({ encoding: 'latin1' })`
+   */
+  encoding?: string;
+
+  /**
+   * Default: `false`
+   *
+   * Turn on logging to help debug why certain keys or values are not being set as you expect.
+   *
+   * example: `require('dotenv').config({ debug: process.env.DEBUG })`
+   */
+  debug?: boolean;
+
+  /**
+   * Default: `false`
+   *
+   * Override any environment variables that have already been set on your machine with values from your .env file.
+   *
+   * example: `require('dotenv').config({ override: true })`
+   */
+  override?: boolean;
+
+  /**
+   * Default: `process.env`
+   *
+   * Specify an object to write your secrets to. Defaults to process.env environment variables.
+   *
+   * example: `const processEnv = {}; require('dotenv').config({ processEnv: processEnv })`
+   */
+  processEnv?: DotenvPopulateInput;
+
+  /**
+   * Default: `undefined`
+   *
+   * Pass the DOTENV_KEY directly to config options. Defaults to looking for process.env.DOTENV_KEY environment variable. Note this only applies to decrypting .env.vault files. If passed as null or undefined, or not passed at all, dotenv falls back to its traditional job of parsing a .env file.
+   *
+   * example: `require('dotenv').config({ DOTENV_KEY: 'dotenv://:key_1234…@dotenvx.com/vault/.env.vault?environment=production' })`
+   */
+  DOTENV_KEY?: string;
+}
+
+export interface DotenvConfigOutput {
+  error?: Error;
+  parsed?: DotenvParseOutput;
+}
+
+export interface DotenvPopulateOptions {
+  /**
+   * Default: `false`
+   *
+   * Turn on logging to help debug why certain keys or values are not being set as you expect.
+   *
+   * example: `require('dotenv').config({ debug: process.env.DEBUG })`
+   */
+  debug?: boolean;
+
+  /**
+   * Default: `false`
+   *
+   * Override any environment variables that have already been set on your machine with values from your .env file.
+   *
+   * example: `require('dotenv').config({ override: true })`
+   */
+  override?: boolean;
+}
+
+export interface DotenvPopulateInput {
+  [name: string]: string;
+}
+
+/**
+ * Loads `.env` file contents into process.env by default. If `DOTENV_KEY` is present, it smartly attempts to load encrypted `.env.vault` file contents into process.env.
+ *
+ * See https://dotenvx.com/docs
+ *
+ * @param options - additional options. example: `{ path: './custom/path', encoding: 'latin1', debug: true, override: false }`
+ * @returns an object with a `parsed` key if successful or `error` key if an error occurred. example: { parsed: { KEY: 'value' } }
+ *
+ */
+export function config(options?: DotenvConfigOptions): DotenvConfigOutput;
+
+/**
+ * Loads `.env` file contents into process.env.
+ *
+ * See https://dotenvx.com/docs
+ *
+ * @param options - additional options. example: `{ path: './custom/path', encoding: 'latin1', debug: true, override: false }`
+ * @returns an object with a `parsed` key if successful or `error` key if an error occurred. example: { parsed: { KEY: 'value' } }
+ *
+ */
+export function configDotenv(options?: DotenvConfigOptions): DotenvConfigOutput;
+
+/**
+ * Loads `source` json contents into `target` like process.env.
+ *
+ * See https://dotenvx.com/docs
+ *
+ * @param processEnv - the target JSON object. in most cases use process.env but you can also pass your own JSON object
+ * @param parsed - the source JSON object
+ * @param options - additional options. example: `{ debug: true, override: false }`
+ * @returns {void}
+ *
+ */
+export function populate(processEnv: DotenvPopulateInput, parsed: DotenvPopulateInput, options?: DotenvConfigOptions): void;
+
+/**
+ * Decrypt ciphertext
+ *
+ * See https://dotenvx.com/docs
+ *
+ * @param encrypted - the encrypted ciphertext string
+ * @param keyStr - the decryption key string
+ * @returns {string}
+ *
+ */
+export function decrypt(encrypted: string, keyStr: string): string;
diff --git a/backend/node_modules/dotenv/lib/main.js b/backend/node_modules/dotenv/lib/main.js
new file mode 100644
index 0000000..314f49a
--- /dev/null
+++ b/backend/node_modules/dotenv/lib/main.js
@@ -0,0 +1,361 @@
+const fs = require('fs')
+const path = require('path')
+const os = require('os')
+const crypto = require('crypto')
+const packageJson = require('../package.json')
+
+const version = packageJson.version
+
+const LINE = /(?:^|^)\s*(?:export\s+)?([\w.-]+)(?:\s*=\s*?|:\s+?)(\s*'(?:\\'|[^'])*'|\s*"(?:\\"|[^"])*"|\s*`(?:\\`|[^`])*`|[^#\r\n]+)?\s*(?:#.*)?(?:$|$)/mg
+
+// Parse src into an Object
+function parse (src) {
+  const obj = {}
+
+  // Convert buffer to string
+  let lines = src.toString()
+
+  // Convert line breaks to same format
+  lines = lines.replace(/\r\n?/mg, '\n')
+
+  let match
+  while ((match = LINE.exec(lines)) != null) {
+    const key = match[1]
+
+    // Default undefined or null to empty string
+    let value = (match[2] || '')
+
+    // Remove whitespace
+    value = value.trim()
+
+    // Check if double quoted
+    const maybeQuote = value[0]
+
+    // Remove surrounding quotes
+    value = value.replace(/^(['"`])([\s\S]*)\1$/mg, '$2')
+
+    // Expand newlines if double quoted
+    if (maybeQuote === '"') {
+      value = value.replace(/\\n/g, '\n')
+      value = value.replace(/\\r/g, '\r')
+    }
+
+    // Add to object
+    obj[key] = value
+  }
+
+  return obj
+}
+
+function _parseVault (options) {
+  const vaultPath = _vaultPath(options)
+
+  // Parse .env.vault
+  const result = DotenvModule.configDotenv({ path: vaultPath })
+  if (!result.parsed) {
+    const err = new Error(`MISSING_DATA: Cannot parse ${vaultPath} for an unknown reason`)
+    err.code = 'MISSING_DATA'
+    throw err
+  }
+
+  // handle scenario for comma separated keys - for use with key rotation
+  // example: DOTENV_KEY="dotenv://:key_1234@dotenvx.com/vault/.env.vault?environment=prod,dotenv://:key_7890@dotenvx.com/vault/.env.vault?environment=prod"
+  const keys = _dotenvKey(options).split(',')
+  const length = keys.length
+
+  let decrypted
+  for (let i = 0; i < length; i++) {
+    try {
+      // Get full key
+      const key = keys[i].trim()
+
+      // Get instructions for decrypt
+      const attrs = _instructions(result, key)
+
+      // Decrypt
+      decrypted = DotenvModule.decrypt(attrs.ciphertext, attrs.key)
+
+      break
+    } catch (error) {
+      // last key
+      if (i + 1 >= length) {
+        throw error
+      }
+      // try next key
+    }
+  }
+
+  // Parse decrypted .env string
+  return DotenvModule.parse(decrypted)
+}
+
+function _log (message) {
+  console.log(`[dotenv@${version}][INFO] ${message}`)
+}
+
+function _warn (message) {
+  console.log(`[dotenv@${version}][WARN] ${message}`)
+}
+
+function _debug (message) {
+  console.log(`[dotenv@${version}][DEBUG] ${message}`)
+}
+
+function _dotenvKey (options) {
+  // prioritize developer directly setting options.DOTENV_KEY
+  if (options && options.DOTENV_KEY && options.DOTENV_KEY.length > 0) {
+    return options.DOTENV_KEY
+  }
+
+  // secondary infra already contains a DOTENV_KEY environment variable
+  if (process.env.DOTENV_KEY && process.env.DOTENV_KEY.length > 0) {
+    return process.env.DOTENV_KEY
+  }
+
+  // fallback to empty string
+  return ''
+}
+
+function _instructions (result, dotenvKey) {
+  // Parse DOTENV_KEY. Format is a URI
+  let uri
+  try {
+    uri = new URL(dotenvKey)
+  } catch (error) {
+    if (error.code === 'ERR_INVALID_URL') {
+      const err = new Error('INVALID_DOTENV_KEY: Wrong format. Must be in valid uri format like dotenv://:key_1234@dotenvx.com/vault/.env.vault?environment=development')
+      err.code = 'INVALID_DOTENV_KEY'
+      throw err
+    }
+
+    throw error
+  }
+
+  // Get decrypt key
+  const key = uri.password
+  if (!key) {
+    const err = new Error('INVALID_DOTENV_KEY: Missing key part')
+    err.code = 'INVALID_DOTENV_KEY'
+    throw err
+  }
+
+  // Get environment
+  const environment = uri.searchParams.get('environment')
+  if (!environment) {
+    const err = new Error('INVALID_DOTENV_KEY: Missing environment part')
+    err.code = 'INVALID_DOTENV_KEY'
+    throw err
+  }
+
+  // Get ciphertext payload
+  const environmentKey = `DOTENV_VAULT_${environment.toUpperCase()}`
+  const ciphertext = result.parsed[environmentKey] // DOTENV_VAULT_PRODUCTION
+  if (!ciphertext) {
+    const err = new Error(`NOT_FOUND_DOTENV_ENVIRONMENT: Cannot locate environment ${environmentKey} in your .env.vault file.`)
+    err.code = 'NOT_FOUND_DOTENV_ENVIRONMENT'
+    throw err
+  }
+
+  return { ciphertext, key }
+}
+
+function _vaultPath (options) {
+  let possibleVaultPath = null
+
+  if (options && options.path && options.path.length > 0) {
+    if (Array.isArray(options.path)) {
+      for (const filepath of options.path) {
+        if (fs.existsSync(filepath)) {
+          possibleVaultPath = filepath.endsWith('.vault') ? filepath : `${filepath}.vault`
+        }
+      }
+    } else {
+      possibleVaultPath = options.path.endsWith('.vault') ? options.path : `${options.path}.vault`
+    }
+  } else {
+    possibleVaultPath = path.resolve(process.cwd(), '.env.vault')
+  }
+
+  if (fs.existsSync(possibleVaultPath)) {
+    return possibleVaultPath
+  }
+
+  return null
+}
+
+function _resolveHome (envPath) {
+  return envPath[0] === '~' ? path.join(os.homedir(), envPath.slice(1)) : envPath
+}
+
+function _configVault (options) {
+  _log('Loading env from encrypted .env.vault')
+
+  const parsed = DotenvModule._parseVault(options)
+
+  let processEnv = process.env
+  if (options && options.processEnv != null) {
+    processEnv = options.processEnv
+  }
+
+  DotenvModule.populate(processEnv, parsed, options)
+
+  return { parsed }
+}
+
+function configDotenv (options) {
+  const dotenvPath = path.resolve(process.cwd(), '.env')
+  let encoding = 'utf8'
+  const debug = Boolean(options && options.debug)
+
+  if (options && options.encoding) {
+    encoding = options.encoding
+  } else {
+    if (debug) {
+      _debug('No encoding is specified. UTF-8 is used by default')
+    }
+  }
+
+  let optionPaths = [dotenvPath] // default, look for .env
+  if (options && options.path) {
+    if (!Array.isArray(options.path)) {
+      optionPaths = [_resolveHome(options.path)]
+    } else {
+      optionPaths = [] // reset default
+      for (const filepath of options.path) {
+        optionPaths.push(_resolveHome(filepath))
+      }
+    }
+  }
+
+  // Build the parsed data in a temporary object (because we need to return it).  Once we have the final
+  // parsed data, we will combine it with process.env (or options.processEnv if provided).
+  let lastError
+  const parsedAll = {}
+  for (const path of optionPaths) {
+    try {
+      // Specifying an encoding returns a string instead of a buffer
+      const parsed = DotenvModule.parse(fs.readFileSync(path, { encoding }))
+
+      DotenvModule.populate(parsedAll, parsed, options)
+    } catch (e) {
+      if (debug) {
+        _debug(`Failed to load ${path} ${e.message}`)
+      }
+      lastError = e
+    }
+  }
+
+  let processEnv = process.env
+  if (options && options.processEnv != null) {
+    processEnv = options.processEnv
+  }
+
+  DotenvModule.populate(processEnv, parsedAll, options)
+
+  if (lastError) {
+    return { parsed: parsedAll, error: lastError }
+  } else {
+    return { parsed: parsedAll }
+  }
+}
+
+// Populates process.env from .env file
+function config (options) {
+  // fallback to original dotenv if DOTENV_KEY is not set
+  if (_dotenvKey(options).length === 0) {
+    return DotenvModule.configDotenv(options)
+  }
+
+  const vaultPath = _vaultPath(options)
+
+  // dotenvKey exists but .env.vault file does not exist
+  if (!vaultPath) {
+    _warn(`You set DOTENV_KEY but you are missing a .env.vault file at ${vaultPath}. Did you forget to build it?`)
+
+    return DotenvModule.configDotenv(options)
+  }
+
+  return DotenvModule._configVault(options)
+}
+
+function decrypt (encrypted, keyStr) {
+  const key = Buffer.from(keyStr.slice(-64), 'hex')
+  let ciphertext = Buffer.from(encrypted, 'base64')
+
+  const nonce = ciphertext.subarray(0, 12)
+  const authTag = ciphertext.subarray(-16)
+  ciphertext = ciphertext.subarray(12, -16)
+
+  try {
+    const aesgcm = crypto.createDecipheriv('aes-256-gcm', key, nonce)
+    aesgcm.setAuthTag(authTag)
+    return `${aesgcm.update(ciphertext)}${aesgcm.final()}`
+  } catch (error) {
+    const isRange = error instanceof RangeError
+    const invalidKeyLength = error.message === 'Invalid key length'
+    const decryptionFailed = error.message === 'Unsupported state or unable to authenticate data'
+
+    if (isRange || invalidKeyLength) {
+      const err = new Error('INVALID_DOTENV_KEY: It must be 64 characters long (or more)')
+      err.code = 'INVALID_DOTENV_KEY'
+      throw err
+    } else if (decryptionFailed) {
+      const err = new Error('DECRYPTION_FAILED: Please check your DOTENV_KEY')
+      err.code = 'DECRYPTION_FAILED'
+      throw err
+    } else {
+      throw error
+    }
+  }
+}
+
+// Populate process.env with parsed values
+function populate (processEnv, parsed, options = {}) {
+  const debug = Boolean(options && options.debug)
+  const override = Boolean(options && options.override)
+
+  if (typeof parsed !== 'object') {
+    const err = new Error('OBJECT_REQUIRED: Please check the processEnv argument being passed to populate')
+    err.code = 'OBJECT_REQUIRED'
+    throw err
+  }
+
+  // Set process.env
+  for (const key of Object.keys(parsed)) {
+    if (Object.prototype.hasOwnProperty.call(processEnv, key)) {
+      if (override === true) {
+        processEnv[key] = parsed[key]
+      }
+
+      if (debug) {
+        if (override === true) {
+          _debug(`"${key}" is already defined and WAS overwritten`)
+        } else {
+          _debug(`"${key}" is already defined and was NOT overwritten`)
+        }
+      }
+    } else {
+      processEnv[key] = parsed[key]
+    }
+  }
+}
+
+const DotenvModule = {
+  configDotenv,
+  _configVault,
+  _parseVault,
+  config,
+  decrypt,
+  parse,
+  populate
+}
+
+module.exports.configDotenv = DotenvModule.configDotenv
+module.exports._configVault = DotenvModule._configVault
+module.exports._parseVault = DotenvModule._parseVault
+module.exports.config = DotenvModule.config
+module.exports.decrypt = DotenvModule.decrypt
+module.exports.parse = DotenvModule.parse
+module.exports.populate = DotenvModule.populate
+
+module.exports = DotenvModule
diff --git a/backend/node_modules/dotenv/package.json b/backend/node_modules/dotenv/package.json
new file mode 100644
index 0000000..528426b
--- /dev/null
+++ b/backend/node_modules/dotenv/package.json
@@ -0,0 +1,61 @@
+{
+  "name": "dotenv",
+  "version": "16.4.7",
+  "description": "Loads environment variables from .env file",
+  "main": "lib/main.js",
+  "types": "lib/main.d.ts",
+  "exports": {
+    ".": {
+      "types": "./lib/main.d.ts",
+      "require": "./lib/main.js",
+      "default": "./lib/main.js"
+    },
+    "./config": "./config.js",
+    "./config.js": "./config.js",
+    "./lib/env-options": "./lib/env-options.js",
+    "./lib/env-options.js": "./lib/env-options.js",
+    "./lib/cli-options": "./lib/cli-options.js",
+    "./lib/cli-options.js": "./lib/cli-options.js",
+    "./package.json": "./package.json"
+  },
+  "scripts": {
+    "dts-check": "tsc --project tests/types/tsconfig.json",
+    "lint": "standard",
+    "pretest": "npm run lint && npm run dts-check",
+    "test": "tap run --allow-empty-coverage --disable-coverage --timeout=60000",
+    "test:coverage": "tap run --show-full-coverage --timeout=60000 --coverage-report=lcov",
+    "prerelease": "npm test",
+    "release": "standard-version"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/motdotla/dotenv.git"
+  },
+  "funding": "https://dotenvx.com",
+  "keywords": [
+    "dotenv",
+    "env",
+    ".env",
+    "environment",
+    "variables",
+    "config",
+    "settings"
+  ],
+  "readmeFilename": "README.md",
+  "license": "BSD-2-Clause",
+  "devDependencies": {
+    "@types/node": "^18.11.3",
+    "decache": "^4.6.2",
+    "sinon": "^14.0.1",
+    "standard": "^17.0.0",
+    "standard-version": "^9.5.0",
+    "tap": "^19.2.0",
+    "typescript": "^4.8.4"
+  },
+  "engines": {
+    "node": ">=12"
+  },
+  "browser": {
+    "fs": false
+  }
+}
diff --git a/backend/node_modules/dunder-proto/.eslintrc b/backend/node_modules/dunder-proto/.eslintrc
new file mode 100644
index 0000000..3b5d9e9
--- /dev/null
+++ b/backend/node_modules/dunder-proto/.eslintrc
@@ -0,0 +1,5 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+}
diff --git a/backend/node_modules/dunder-proto/.github/FUNDING.yml b/backend/node_modules/dunder-proto/.github/FUNDING.yml
new file mode 100644
index 0000000..8a1d7b0
--- /dev/null
+++ b/backend/node_modules/dunder-proto/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/dunder-proto
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/dunder-proto/.nycrc b/backend/node_modules/dunder-proto/.nycrc
new file mode 100644
index 0000000..1826526
--- /dev/null
+++ b/backend/node_modules/dunder-proto/.nycrc
@@ -0,0 +1,13 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"lines": 86,
+	"statements": 85.93,
+	"functions": 82.43,
+	"branches": 76.06,
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/dunder-proto/CHANGELOG.md b/backend/node_modules/dunder-proto/CHANGELOG.md
new file mode 100644
index 0000000..9b8b2f8
--- /dev/null
+++ b/backend/node_modules/dunder-proto/CHANGELOG.md
@@ -0,0 +1,24 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.0.1](https://github.com/es-shims/dunder-proto/compare/v1.0.0...v1.0.1) - 2024-12-16
+
+### Commits
+
+- [Fix] do not crash when `--disable-proto=throw` [`6c367d9`](https://github.com/es-shims/dunder-proto/commit/6c367d919bc1604778689a297bbdbfea65752847)
+- [Tests] ensure noproto tests only use the current version of dunder-proto [`b02365b`](https://github.com/es-shims/dunder-proto/commit/b02365b9cf889c4a2cac7be0c3cfc90a789af36c)
+- [Dev Deps] update `@arethetypeswrong/cli`, `@types/tape` [`e3c5c3b`](https://github.com/es-shims/dunder-proto/commit/e3c5c3bd81cf8cef7dff2eca19e558f0e307f666)
+- [Deps] update `call-bind-apply-helpers` [`19f1da0`](https://github.com/es-shims/dunder-proto/commit/19f1da028b8dd0d05c85bfd8f7eed2819b686450)
+
+## v1.0.0 - 2024-12-06
+
+### Commits
+
+- Initial implementation, tests, readme, types [`a5b74b0`](https://github.com/es-shims/dunder-proto/commit/a5b74b0082f5270cb0905cd9a2e533cee7498373)
+- Initial commit [`73fb5a3`](https://github.com/es-shims/dunder-proto/commit/73fb5a353b51ac2ab00c9fdeb0114daffd4c07a8)
+- npm init [`80152dc`](https://github.com/es-shims/dunder-proto/commit/80152dc98155da4eb046d9f67a87ed96e8280a1d)
+- Only apps should have lockfiles [`03e6660`](https://github.com/es-shims/dunder-proto/commit/03e6660a1d70dc401f3e217a031475ec537243dd)
diff --git a/backend/node_modules/dunder-proto/LICENSE b/backend/node_modules/dunder-proto/LICENSE
new file mode 100644
index 0000000..34995e7
--- /dev/null
+++ b/backend/node_modules/dunder-proto/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 ECMAScript Shims
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/dunder-proto/README.md b/backend/node_modules/dunder-proto/README.md
new file mode 100644
index 0000000..44b80a2
--- /dev/null
+++ b/backend/node_modules/dunder-proto/README.md
@@ -0,0 +1,54 @@
+# dunder-proto <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+If available, the `Object.prototype.__proto__` accessor and mutator, call-bound.
+
+## Getting started
+
+```sh
+npm install --save dunder-proto
+```
+
+## Usage/Examples
+
+```js
+const assert = require('assert');
+const getDunder = require('dunder-proto/get');
+const setDunder = require('dunder-proto/set');
+
+const obj = {};
+
+assert.equal('toString' in obj, true);
+assert.equal(getDunder(obj), Object.prototype);
+
+setDunder(obj, null);
+
+assert.equal('toString' in obj, false);
+assert.equal(getDunder(obj), null);
+```
+
+## Tests
+
+Clone the repo, `npm install`, and run `npm test`
+
+[package-url]: https://npmjs.org/package/dunder-proto
+[npm-version-svg]: https://versionbadg.es/es-shims/dunder-proto.svg
+[deps-svg]: https://david-dm.org/es-shims/dunder-proto.svg
+[deps-url]: https://david-dm.org/es-shims/dunder-proto
+[dev-deps-svg]: https://david-dm.org/es-shims/dunder-proto/dev-status.svg
+[dev-deps-url]: https://david-dm.org/es-shims/dunder-proto#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/dunder-proto.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/dunder-proto.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/dunder-proto.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=dunder-proto
+[codecov-image]: https://codecov.io/gh/es-shims/dunder-proto/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/es-shims/dunder-proto/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/es-shims/dunder-proto
+[actions-url]: https://github.com/es-shims/dunder-proto/actions
diff --git a/backend/node_modules/dunder-proto/get.d.ts b/backend/node_modules/dunder-proto/get.d.ts
new file mode 100644
index 0000000..c7e14d2
--- /dev/null
+++ b/backend/node_modules/dunder-proto/get.d.ts
@@ -0,0 +1,5 @@
+declare function getDunderProto(target: {}): object | null;
+
+declare const x: false | typeof getDunderProto;
+
+export = x;
\ No newline at end of file
diff --git a/backend/node_modules/dunder-proto/get.js b/backend/node_modules/dunder-proto/get.js
new file mode 100644
index 0000000..45093df
--- /dev/null
+++ b/backend/node_modules/dunder-proto/get.js
@@ -0,0 +1,30 @@
+'use strict';
+
+var callBind = require('call-bind-apply-helpers');
+var gOPD = require('gopd');
+
+var hasProtoAccessor;
+try {
+	// eslint-disable-next-line no-extra-parens, no-proto
+	hasProtoAccessor = /** @type {{ __proto__?: typeof Array.prototype }} */ ([]).__proto__ === Array.prototype;
+} catch (e) {
+	if (!e || typeof e !== 'object' || !('code' in e) || e.code !== 'ERR_PROTO_ACCESS') {
+		throw e;
+	}
+}
+
+// eslint-disable-next-line no-extra-parens
+var desc = !!hasProtoAccessor && gOPD && gOPD(Object.prototype, /** @type {keyof typeof Object.prototype} */ ('__proto__'));
+
+var $Object = Object;
+var $getPrototypeOf = $Object.getPrototypeOf;
+
+/** @type {import('./get')} */
+module.exports = desc && typeof desc.get === 'function'
+	? callBind([desc.get])
+	: typeof $getPrototypeOf === 'function'
+		? /** @type {import('./get')} */ function getDunder(value) {
+			// eslint-disable-next-line eqeqeq
+			return $getPrototypeOf(value == null ? value : $Object(value));
+		}
+		: false;
diff --git a/backend/node_modules/dunder-proto/package.json b/backend/node_modules/dunder-proto/package.json
new file mode 100644
index 0000000..04a4036
--- /dev/null
+++ b/backend/node_modules/dunder-proto/package.json
@@ -0,0 +1,76 @@
+{
+	"name": "dunder-proto",
+	"version": "1.0.1",
+	"description": "If available, the `Object.prototype.__proto__` accessor and mutator, call-bound",
+	"main": false,
+	"exports": {
+		"./get": "./get.js",
+		"./set": "./set.js",
+		"./package.json": "./package.json"
+	},
+	"sideEffects": false,
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prepublishOnly": "safe-publish-latest",
+		"prelint": "evalmd README.md",
+		"lint": "eslint --ext=.js,.mjs .",
+		"postlint": "tsc -p . && attw -P",
+		"pretest": "npm run lint",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@'>= 10.2' audit --production",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/es-shims/dunder-proto.git"
+	},
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/es-shims/dunder-proto/issues"
+	},
+	"homepage": "https://github.com/es-shims/dunder-proto#readme",
+	"dependencies": {
+		"call-bind-apply-helpers": "^1.0.1",
+		"es-errors": "^1.3.0",
+		"gopd": "^1.2.0"
+	},
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.17.1",
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.2",
+		"@types/tape": "^5.7.0",
+		"auto-changelog": "^2.5.0",
+		"encoding": "^0.1.13",
+		"eslint": "=8.8.0",
+		"evalmd": "^0.0.19",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"testling": {
+		"files": "test/index.js"
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/backend/node_modules/dunder-proto/set.d.ts b/backend/node_modules/dunder-proto/set.d.ts
new file mode 100644
index 0000000..16bfdfe
--- /dev/null
+++ b/backend/node_modules/dunder-proto/set.d.ts
@@ -0,0 +1,5 @@
+declare function setDunderProto<P extends null | object>(target: {}, proto: P): P;
+
+declare const x: false | typeof setDunderProto;
+
+export = x;
\ No newline at end of file
diff --git a/backend/node_modules/dunder-proto/set.js b/backend/node_modules/dunder-proto/set.js
new file mode 100644
index 0000000..6085b6e
--- /dev/null
+++ b/backend/node_modules/dunder-proto/set.js
@@ -0,0 +1,35 @@
+'use strict';
+
+var callBind = require('call-bind-apply-helpers');
+var gOPD = require('gopd');
+var $TypeError = require('es-errors/type');
+
+/** @type {{ __proto__?: object | null }} */
+var obj = {};
+try {
+	obj.__proto__ = null; // eslint-disable-line no-proto
+} catch (e) {
+	if (!e || typeof e !== 'object' || !('code' in e) || e.code !== 'ERR_PROTO_ACCESS') {
+		throw e;
+	}
+}
+
+var hasProtoMutator = !('toString' in obj);
+
+// eslint-disable-next-line no-extra-parens
+var desc = gOPD && gOPD(Object.prototype, /** @type {keyof typeof Object.prototype} */ ('__proto__'));
+
+/** @type {import('./set')} */
+module.exports = hasProtoMutator && (
+// eslint-disable-next-line no-extra-parens
+	(!!desc && typeof desc.set === 'function' && /** @type {import('./set')} */ (callBind([desc.set])))
+	|| /** @type {import('./set')} */ function setDunder(object, proto) {
+		// this is node v0.10 or older, which doesn't have Object.setPrototypeOf and has undeniable __proto__
+		if (object == null) { // eslint-disable-line eqeqeq
+			throw new $TypeError('set Object.prototype.__proto__ called on null or undefined');
+		}
+		// eslint-disable-next-line no-proto, no-param-reassign, no-extra-parens
+		/** @type {{ __proto__?: object | null }} */ (object).__proto__ = proto;
+		return proto;
+	}
+);
diff --git a/backend/node_modules/dunder-proto/test/get.js b/backend/node_modules/dunder-proto/test/get.js
new file mode 100644
index 0000000..253f183
--- /dev/null
+++ b/backend/node_modules/dunder-proto/test/get.js
@@ -0,0 +1,34 @@
+'use strict';
+
+var test = require('tape');
+
+var getDunderProto = require('../get');
+
+test('getDunderProto', { skip: !getDunderProto }, function (t) {
+	if (!getDunderProto) {
+		throw 'should never happen; this is just for type narrowing'; // eslint-disable-line no-throw-literal
+	}
+
+	// @ts-expect-error
+	t['throws'](function () { getDunderProto(); }, TypeError, 'throws if no argument');
+	// @ts-expect-error
+	t['throws'](function () { getDunderProto(undefined); }, TypeError, 'throws with undefined');
+	// @ts-expect-error
+	t['throws'](function () { getDunderProto(null); }, TypeError, 'throws with null');
+
+	t.equal(getDunderProto({}), Object.prototype);
+	t.equal(getDunderProto([]), Array.prototype);
+	t.equal(getDunderProto(function () {}), Function.prototype);
+	t.equal(getDunderProto(/./g), RegExp.prototype);
+	t.equal(getDunderProto(42), Number.prototype);
+	t.equal(getDunderProto(true), Boolean.prototype);
+	t.equal(getDunderProto('foo'), String.prototype);
+
+	t.end();
+});
+
+test('no dunder proto', { skip: !!getDunderProto }, function (t) {
+	t.notOk('__proto__' in Object.prototype, 'no __proto__ in Object.prototype');
+
+	t.end();
+});
diff --git a/backend/node_modules/dunder-proto/test/index.js b/backend/node_modules/dunder-proto/test/index.js
new file mode 100644
index 0000000..08ff36f
--- /dev/null
+++ b/backend/node_modules/dunder-proto/test/index.js
@@ -0,0 +1,4 @@
+'use strict';
+
+require('./get');
+require('./set');
diff --git a/backend/node_modules/dunder-proto/test/set.js b/backend/node_modules/dunder-proto/test/set.js
new file mode 100644
index 0000000..c3bfe4d
--- /dev/null
+++ b/backend/node_modules/dunder-proto/test/set.js
@@ -0,0 +1,50 @@
+'use strict';
+
+var test = require('tape');
+
+var setDunderProto = require('../set');
+
+test('setDunderProto', { skip: !setDunderProto }, function (t) {
+	if (!setDunderProto) {
+		throw 'should never happen; this is just for type narrowing'; // eslint-disable-line no-throw-literal
+	}
+
+	// @ts-expect-error
+	t['throws'](function () { setDunderProto(); }, TypeError, 'throws if no arguments');
+	// @ts-expect-error
+	t['throws'](function () { setDunderProto(undefined); }, TypeError, 'throws with undefined and nothing');
+	// @ts-expect-error
+	t['throws'](function () { setDunderProto(undefined, undefined); }, TypeError, 'throws with undefined and undefined');
+	// @ts-expect-error
+	t['throws'](function () { setDunderProto(null); }, TypeError, 'throws with null and undefined');
+	// @ts-expect-error
+	t['throws'](function () { setDunderProto(null, undefined); }, TypeError, 'throws with null and undefined');
+
+	/** @type {{ inherited?: boolean }} */
+	var obj = {};
+	t.ok('toString' in obj, 'object initially has toString');
+
+	setDunderProto(obj, null);
+	t.notOk('toString' in obj, 'object no longer has toString');
+
+	t.notOk('inherited' in obj, 'object lacks inherited property');
+	setDunderProto(obj, { inherited: true });
+	t.equal(obj.inherited, true, 'object has inherited property');
+
+	t.end();
+});
+
+test('no dunder proto', { skip: !!setDunderProto }, function (t) {
+	if ('__proto__' in Object.prototype) {
+		t['throws'](
+			// @ts-expect-error
+			function () { ({}).__proto__ = null; }, // eslint-disable-line no-proto
+			Error,
+			'throws when setting Object.prototype.__proto__'
+		);
+	} else {
+		t.notOk('__proto__' in Object.prototype, 'no __proto__ in Object.prototype');
+	}
+
+	t.end();
+});
diff --git a/backend/node_modules/dunder-proto/tsconfig.json b/backend/node_modules/dunder-proto/tsconfig.json
new file mode 100644
index 0000000..dabbe23
--- /dev/null
+++ b/backend/node_modules/dunder-proto/tsconfig.json
@@ -0,0 +1,9 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		"target": "ES2021",
+	},
+	"exclude": [
+		"coverage",
+	],
+}
diff --git a/backend/node_modules/ee-first/LICENSE b/backend/node_modules/ee-first/LICENSE
new file mode 100644
index 0000000..a7ae8ee
--- /dev/null
+++ b/backend/node_modules/ee-first/LICENSE
@@ -0,0 +1,22 @@
+
+The MIT License (MIT)
+
+Copyright (c) 2014 Jonathan Ong me@jongleberry.com
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/ee-first/README.md b/backend/node_modules/ee-first/README.md
new file mode 100644
index 0000000..cbd2478
--- /dev/null
+++ b/backend/node_modules/ee-first/README.md
@@ -0,0 +1,80 @@
+# EE First
+
+[![NPM version][npm-image]][npm-url]
+[![Build status][travis-image]][travis-url]
+[![Test coverage][coveralls-image]][coveralls-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+[![Gittip][gittip-image]][gittip-url]
+
+Get the first event in a set of event emitters and event pairs,
+then clean up after itself.
+
+## Install
+
+```sh
+$ npm install ee-first
+```
+
+## API
+
+```js
+var first = require('ee-first')
+```
+
+### first(arr, listener)
+
+Invoke `listener` on the first event from the list specified in `arr`. `arr` is
+an array of arrays, with each array in the format `[ee, ...event]`. `listener`
+will be called only once, the first time any of the given events are emitted. If
+`error` is one of the listened events, then if that fires first, the `listener`
+will be given the `err` argument.
+
+The `listener` is invoked as `listener(err, ee, event, args)`, where `err` is the
+first argument emitted from an `error` event, if applicable; `ee` is the event
+emitter that fired; `event` is the string event name that fired; and `args` is an
+array of the arguments that were emitted on the event.
+
+```js
+var ee1 = new EventEmitter()
+var ee2 = new EventEmitter()
+
+first([
+  [ee1, 'close', 'end', 'error'],
+  [ee2, 'error']
+], function (err, ee, event, args) {
+  // listener invoked
+})
+```
+
+#### .cancel()
+
+The group of listeners can be cancelled before being invoked and have all the event
+listeners removed from the underlying event emitters.
+
+```js
+var thunk = first([
+  [ee1, 'close', 'end', 'error'],
+  [ee2, 'error']
+], function (err, ee, event, args) {
+  // listener invoked
+})
+
+// cancel and clean up
+thunk.cancel()
+```
+
+[npm-image]: https://img.shields.io/npm/v/ee-first.svg?style=flat-square
+[npm-url]: https://npmjs.org/package/ee-first
+[github-tag]: http://img.shields.io/github/tag/jonathanong/ee-first.svg?style=flat-square
+[github-url]: https://github.com/jonathanong/ee-first/tags
+[travis-image]: https://img.shields.io/travis/jonathanong/ee-first.svg?style=flat-square
+[travis-url]: https://travis-ci.org/jonathanong/ee-first
+[coveralls-image]: https://img.shields.io/coveralls/jonathanong/ee-first.svg?style=flat-square
+[coveralls-url]: https://coveralls.io/r/jonathanong/ee-first?branch=master
+[license-image]: http://img.shields.io/npm/l/ee-first.svg?style=flat-square
+[license-url]: LICENSE.md
+[downloads-image]: http://img.shields.io/npm/dm/ee-first.svg?style=flat-square
+[downloads-url]: https://npmjs.org/package/ee-first
+[gittip-image]: https://img.shields.io/gittip/jonathanong.svg?style=flat-square
+[gittip-url]: https://www.gittip.com/jonathanong/
diff --git a/backend/node_modules/ee-first/index.js b/backend/node_modules/ee-first/index.js
new file mode 100644
index 0000000..501287c
--- /dev/null
+++ b/backend/node_modules/ee-first/index.js
@@ -0,0 +1,95 @@
+/*!
+ * ee-first
+ * Copyright(c) 2014 Jonathan Ong
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = first
+
+/**
+ * Get the first event in a set of event emitters and event pairs.
+ *
+ * @param {array} stuff
+ * @param {function} done
+ * @public
+ */
+
+function first(stuff, done) {
+  if (!Array.isArray(stuff))
+    throw new TypeError('arg must be an array of [ee, events...] arrays')
+
+  var cleanups = []
+
+  for (var i = 0; i < stuff.length; i++) {
+    var arr = stuff[i]
+
+    if (!Array.isArray(arr) || arr.length < 2)
+      throw new TypeError('each array member must be [ee, events...]')
+
+    var ee = arr[0]
+
+    for (var j = 1; j < arr.length; j++) {
+      var event = arr[j]
+      var fn = listener(event, callback)
+
+      // listen to the event
+      ee.on(event, fn)
+      // push this listener to the list of cleanups
+      cleanups.push({
+        ee: ee,
+        event: event,
+        fn: fn,
+      })
+    }
+  }
+
+  function callback() {
+    cleanup()
+    done.apply(null, arguments)
+  }
+
+  function cleanup() {
+    var x
+    for (var i = 0; i < cleanups.length; i++) {
+      x = cleanups[i]
+      x.ee.removeListener(x.event, x.fn)
+    }
+  }
+
+  function thunk(fn) {
+    done = fn
+  }
+
+  thunk.cancel = cleanup
+
+  return thunk
+}
+
+/**
+ * Create the event listener.
+ * @private
+ */
+
+function listener(event, done) {
+  return function onevent(arg1) {
+    var args = new Array(arguments.length)
+    var ee = this
+    var err = event === 'error'
+      ? arg1
+      : null
+
+    // copy args to prevent arguments escaping scope
+    for (var i = 0; i < args.length; i++) {
+      args[i] = arguments[i]
+    }
+
+    done(err, ee, event, args)
+  }
+}
diff --git a/backend/node_modules/ee-first/package.json b/backend/node_modules/ee-first/package.json
new file mode 100644
index 0000000..b6d0b7d
--- /dev/null
+++ b/backend/node_modules/ee-first/package.json
@@ -0,0 +1,29 @@
+{
+  "name": "ee-first",
+  "description": "return the first event in a set of ee/event pairs",
+  "version": "1.1.1",
+  "author": {
+    "name": "Jonathan Ong",
+    "email": "me@jongleberry.com",
+    "url": "http://jongleberry.com",
+    "twitter": "https://twitter.com/jongleberry"
+  },
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>"
+  ],
+  "license": "MIT",
+  "repository": "jonathanong/ee-first",
+  "devDependencies": {
+    "istanbul": "0.3.9",
+    "mocha": "2.2.5"
+  },
+  "files": [
+    "index.js",
+    "LICENSE"
+  ],
+  "scripts": {
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/",
+    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/"
+  }
+}
diff --git a/backend/node_modules/encodeurl/LICENSE b/backend/node_modules/encodeurl/LICENSE
new file mode 100644
index 0000000..8812229
--- /dev/null
+++ b/backend/node_modules/encodeurl/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2016 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/encodeurl/README.md b/backend/node_modules/encodeurl/README.md
new file mode 100644
index 0000000..3842493
--- /dev/null
+++ b/backend/node_modules/encodeurl/README.md
@@ -0,0 +1,109 @@
+# Encode URL
+
+Encode a URL to a percent-encoded form, excluding already-encoded sequences.
+
+## Installation
+
+```sh
+npm install encodeurl
+```
+
+## API
+
+```js
+var encodeUrl = require('encodeurl')
+```
+
+### encodeUrl(url)
+
+Encode a URL to a percent-encoded form, excluding already-encoded sequences.
+
+This function accepts a URL and encodes all the non-URL code points (as UTF-8 byte sequences). It will not encode the "%" character unless it is not part of a valid sequence (`%20` will be left as-is, but `%foo` will be encoded as `%25foo`).
+
+This encode is meant to be "safe" and does not throw errors. It will try as hard as it can to properly encode the given URL, including replacing any raw, unpaired surrogate pairs with the Unicode replacement character prior to encoding.
+
+## Examples
+
+### Encode a URL containing user-controlled data
+
+```js
+var encodeUrl = require('encodeurl')
+var escapeHtml = require('escape-html')
+
+http.createServer(function onRequest (req, res) {
+  // get encoded form of inbound url
+  var url = encodeUrl(req.url)
+
+  // create html message
+  var body = '<p>Location ' + escapeHtml(url) + ' not found</p>'
+
+  // send a 404
+  res.statusCode = 404
+  res.setHeader('Content-Type', 'text/html; charset=UTF-8')
+  res.setHeader('Content-Length', String(Buffer.byteLength(body, 'utf-8')))
+  res.end(body, 'utf-8')
+})
+```
+
+### Encode a URL for use in a header field
+
+```js
+var encodeUrl = require('encodeurl')
+var escapeHtml = require('escape-html')
+var url = require('url')
+
+http.createServer(function onRequest (req, res) {
+  // parse inbound url
+  var href = url.parse(req)
+
+  // set new host for redirect
+  href.host = 'localhost'
+  href.protocol = 'https:'
+  href.slashes = true
+
+  // create location header
+  var location = encodeUrl(url.format(href))
+
+  // create html message
+  var body = '<p>Redirecting to new site: ' + escapeHtml(location) + '</p>'
+
+  // send a 301
+  res.statusCode = 301
+  res.setHeader('Content-Type', 'text/html; charset=UTF-8')
+  res.setHeader('Content-Length', String(Buffer.byteLength(body, 'utf-8')))
+  res.setHeader('Location', location)
+  res.end(body, 'utf-8')
+})
+```
+
+## Similarities
+
+This function is _similar_ to the intrinsic function `encodeURI`. However, it will not encode:
+
+* The `\`, `^`, or `|` characters
+* The `%` character when it's part of a valid sequence
+* `[` and `]` (for IPv6 hostnames)
+* Replaces raw, unpaired surrogate pairs with the Unicode replacement character
+
+As a result, the encoding aligns closely with the behavior in the [WHATWG URL specification][whatwg-url]. However, this package only encodes strings and does not do any URL parsing or formatting.
+
+It is expected that any output from `new URL(url)` will not change when used with this package, as the output has already been encoded. Additionally, if we were to encode before `new URL(url)`, we do not expect the before and after encoded formats to be parsed any differently.
+
+## Testing
+
+```sh
+$ npm test
+$ npm run lint
+```
+
+## References
+
+- [RFC 3986: Uniform Resource Identifier (URI): Generic Syntax][rfc-3986]
+- [WHATWG URL Living Standard][whatwg-url]
+
+[rfc-3986]: https://tools.ietf.org/html/rfc3986
+[whatwg-url]: https://url.spec.whatwg.org/
+
+## License
+
+[MIT](LICENSE)
diff --git a/backend/node_modules/encodeurl/index.js b/backend/node_modules/encodeurl/index.js
new file mode 100644
index 0000000..a49ee5a
--- /dev/null
+++ b/backend/node_modules/encodeurl/index.js
@@ -0,0 +1,60 @@
+/*!
+ * encodeurl
+ * Copyright(c) 2016 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = encodeUrl
+
+/**
+ * RegExp to match non-URL code points, *after* encoding (i.e. not including "%")
+ * and including invalid escape sequences.
+ * @private
+ */
+
+var ENCODE_CHARS_REGEXP = /(?:[^\x21\x23-\x3B\x3D\x3F-\x5F\x61-\x7A\x7C\x7E]|%(?:[^0-9A-Fa-f]|[0-9A-Fa-f][^0-9A-Fa-f]|$))+/g
+
+/**
+ * RegExp to match unmatched surrogate pair.
+ * @private
+ */
+
+var UNMATCHED_SURROGATE_PAIR_REGEXP = /(^|[^\uD800-\uDBFF])[\uDC00-\uDFFF]|[\uD800-\uDBFF]([^\uDC00-\uDFFF]|$)/g
+
+/**
+ * String to replace unmatched surrogate pair with.
+ * @private
+ */
+
+var UNMATCHED_SURROGATE_PAIR_REPLACE = '$1\uFFFD$2'
+
+/**
+ * Encode a URL to a percent-encoded form, excluding already-encoded sequences.
+ *
+ * This function will take an already-encoded URL and encode all the non-URL
+ * code points. This function will not encode the "%" character unless it is
+ * not part of a valid sequence (`%20` will be left as-is, but `%foo` will
+ * be encoded as `%25foo`).
+ *
+ * This encode is meant to be "safe" and does not throw errors. It will try as
+ * hard as it can to properly encode the given URL, including replacing any raw,
+ * unpaired surrogate pairs with the Unicode replacement character prior to
+ * encoding.
+ *
+ * @param {string} url
+ * @return {string}
+ * @public
+ */
+
+function encodeUrl (url) {
+  return String(url)
+    .replace(UNMATCHED_SURROGATE_PAIR_REGEXP, UNMATCHED_SURROGATE_PAIR_REPLACE)
+    .replace(ENCODE_CHARS_REGEXP, encodeURI)
+}
diff --git a/backend/node_modules/encodeurl/package.json b/backend/node_modules/encodeurl/package.json
new file mode 100644
index 0000000..3133822
--- /dev/null
+++ b/backend/node_modules/encodeurl/package.json
@@ -0,0 +1,40 @@
+{
+  "name": "encodeurl",
+  "description": "Encode a URL to a percent-encoded form, excluding already-encoded sequences",
+  "version": "2.0.0",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>"
+  ],
+  "license": "MIT",
+  "keywords": [
+    "encode",
+    "encodeurl",
+    "url"
+  ],
+  "repository": "pillarjs/encodeurl",
+  "devDependencies": {
+    "eslint": "5.11.1",
+    "eslint-config-standard": "12.0.0",
+    "eslint-plugin-import": "2.14.0",
+    "eslint-plugin-node": "7.0.1",
+    "eslint-plugin-promise": "4.0.1",
+    "eslint-plugin-standard": "4.0.0",
+    "istanbul": "0.4.5",
+    "mocha": "2.5.3"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "README.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/",
+    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/"
+  }
+}
diff --git a/backend/node_modules/es-define-property/.eslintrc b/backend/node_modules/es-define-property/.eslintrc
new file mode 100644
index 0000000..46f3b12
--- /dev/null
+++ b/backend/node_modules/es-define-property/.eslintrc
@@ -0,0 +1,13 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"new-cap": ["error", {
+			"capIsNewExceptions": [
+				"GetIntrinsic",
+			],
+		}],
+	},
+}
diff --git a/backend/node_modules/es-define-property/.github/FUNDING.yml b/backend/node_modules/es-define-property/.github/FUNDING.yml
new file mode 100644
index 0000000..4445451
--- /dev/null
+++ b/backend/node_modules/es-define-property/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/es-define-property
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with a single custom sponsorship URL
diff --git a/backend/node_modules/es-define-property/.nycrc b/backend/node_modules/es-define-property/.nycrc
new file mode 100644
index 0000000..bdd626c
--- /dev/null
+++ b/backend/node_modules/es-define-property/.nycrc
@@ -0,0 +1,9 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/es-define-property/CHANGELOG.md b/backend/node_modules/es-define-property/CHANGELOG.md
new file mode 100644
index 0000000..5f60cc0
--- /dev/null
+++ b/backend/node_modules/es-define-property/CHANGELOG.md
@@ -0,0 +1,29 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.0.1](https://github.com/ljharb/es-define-property/compare/v1.0.0...v1.0.1) - 2024-12-06
+
+### Commits
+
+- [types] use shared tsconfig [`954a663`](https://github.com/ljharb/es-define-property/commit/954a66360326e508a0e5daa4b07493d58f5e110e)
+- [actions] split out node 10-20, and 20+ [`3a8e84b`](https://github.com/ljharb/es-define-property/commit/3a8e84b23883f26ff37b3e82ff283834228e18c6)
+- [Dev Deps] update `@ljharb/eslint-config`, `@ljharb/tsconfig`, `@types/get-intrinsic`, `@types/tape`, `auto-changelog`, `gopd`, `tape` [`86ae27b`](https://github.com/ljharb/es-define-property/commit/86ae27bb8cc857b23885136fad9cbe965ae36612)
+- [Refactor] avoid using `get-intrinsic` [`02480c0`](https://github.com/ljharb/es-define-property/commit/02480c0353ef6118965282977c3864aff53d98b1)
+- [Tests] replace `aud` with `npm audit` [`f6093ff`](https://github.com/ljharb/es-define-property/commit/f6093ff74ab51c98015c2592cd393bd42478e773)
+- [Tests] configure testling [`7139e66`](https://github.com/ljharb/es-define-property/commit/7139e66959247a56086d9977359caef27c6849e7)
+- [Dev Deps] update `tape` [`b901b51`](https://github.com/ljharb/es-define-property/commit/b901b511a75e001a40ce1a59fef7d9ffcfc87482)
+- [Tests] fix types in tests [`469d269`](https://github.com/ljharb/es-define-property/commit/469d269fd141b1e773ec053a9fa35843493583e0)
+- [Dev Deps] add missing peer dep [`733acfb`](https://github.com/ljharb/es-define-property/commit/733acfb0c4c96edf337e470b89a25a5b3724c352)
+
+## v1.0.0 - 2024-02-12
+
+### Commits
+
+- Initial implementation, tests, readme, types [`3e154e1`](https://github.com/ljharb/es-define-property/commit/3e154e11a2fee09127220f5e503bf2c0a31dd480)
+- Initial commit [`07d98de`](https://github.com/ljharb/es-define-property/commit/07d98de34a4dc31ff5e83a37c0c3f49e0d85cd50)
+- npm init [`c4eb634`](https://github.com/ljharb/es-define-property/commit/c4eb6348b0d3886aac36cef34ad2ee0665ea6f3e)
+- Only apps should have lockfiles [`7af86ec`](https://github.com/ljharb/es-define-property/commit/7af86ec1d311ec0b17fdfe616a25f64276903856)
diff --git a/backend/node_modules/es-define-property/LICENSE b/backend/node_modules/es-define-property/LICENSE
new file mode 100644
index 0000000..f82f389
--- /dev/null
+++ b/backend/node_modules/es-define-property/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/es-define-property/README.md b/backend/node_modules/es-define-property/README.md
new file mode 100644
index 0000000..9b291bd
--- /dev/null
+++ b/backend/node_modules/es-define-property/README.md
@@ -0,0 +1,49 @@
+# es-define-property <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+`Object.defineProperty`, but not IE 8's broken one.
+
+## Example
+
+```js
+const assert = require('assert');
+
+const $defineProperty = require('es-define-property');
+
+if ($defineProperty) {
+    assert.equal($defineProperty, Object.defineProperty);
+} else if (Object.defineProperty) {
+    assert.equal($defineProperty, false, 'this is IE 8');
+} else {
+    assert.equal($defineProperty, false, 'this is an ES3 engine');
+}
+```
+
+## Tests
+Simply clone the repo, `npm install`, and run `npm test`
+
+## Security
+
+Please email [@ljharb](https://github.com/ljharb) or see https://tidelift.com/security if you have a potential security vulnerability to report.
+
+[package-url]: https://npmjs.org/package/es-define-property
+[npm-version-svg]: https://versionbadg.es/ljharb/es-define-property.svg
+[deps-svg]: https://david-dm.org/ljharb/es-define-property.svg
+[deps-url]: https://david-dm.org/ljharb/es-define-property
+[dev-deps-svg]: https://david-dm.org/ljharb/es-define-property/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/es-define-property#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/es-define-property.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/es-define-property.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/es-define-property.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=es-define-property
+[codecov-image]: https://codecov.io/gh/ljharb/es-define-property/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/es-define-property/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/es-define-property
+[actions-url]: https://github.com/ljharb/es-define-property/actions
diff --git a/backend/node_modules/es-define-property/index.d.ts b/backend/node_modules/es-define-property/index.d.ts
new file mode 100644
index 0000000..6012247
--- /dev/null
+++ b/backend/node_modules/es-define-property/index.d.ts
@@ -0,0 +1,3 @@
+declare const defineProperty: false | typeof Object.defineProperty;
+
+export = defineProperty;
\ No newline at end of file
diff --git a/backend/node_modules/es-define-property/index.js b/backend/node_modules/es-define-property/index.js
new file mode 100644
index 0000000..e0a2925
--- /dev/null
+++ b/backend/node_modules/es-define-property/index.js
@@ -0,0 +1,14 @@
+'use strict';
+
+/** @type {import('.')} */
+var $defineProperty = Object.defineProperty || false;
+if ($defineProperty) {
+	try {
+		$defineProperty({}, 'a', { value: 1 });
+	} catch (e) {
+		// IE 8 has a broken defineProperty
+		$defineProperty = false;
+	}
+}
+
+module.exports = $defineProperty;
diff --git a/backend/node_modules/es-define-property/package.json b/backend/node_modules/es-define-property/package.json
new file mode 100644
index 0000000..fbed187
--- /dev/null
+++ b/backend/node_modules/es-define-property/package.json
@@ -0,0 +1,81 @@
+{
+	"name": "es-define-property",
+	"version": "1.0.1",
+	"description": "`Object.defineProperty`, but not IE 8's broken one.",
+	"main": "index.js",
+	"types": "./index.d.ts",
+	"exports": {
+		".": "./index.js",
+		"./package.json": "./package.json"
+	},
+	"sideEffects": false,
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prepublishOnly": "safe-publish-latest",
+		"prelint": "evalmd README.md",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "tsc -p .",
+		"pretest": "npm run lint",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@'>= 10.2' audit --production",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/es-define-property.git"
+	},
+	"keywords": [
+		"javascript",
+		"ecmascript",
+		"object",
+		"define",
+		"property",
+		"defineProperty",
+		"Object.defineProperty"
+	],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/es-define-property/issues"
+	},
+	"homepage": "https://github.com/ljharb/es-define-property#readme",
+	"devDependencies": {
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.2",
+		"@types/gopd": "^1.0.3",
+		"@types/tape": "^5.6.5",
+		"auto-changelog": "^2.5.0",
+		"encoding": "^0.1.13",
+		"eslint": "^8.8.0",
+		"evalmd": "^0.0.19",
+		"gopd": "^1.2.0",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"engines": {
+		"node": ">= 0.4"
+	},
+	"testling": {
+		"files": "test/index.js"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	}
+}
diff --git a/backend/node_modules/es-define-property/test/index.js b/backend/node_modules/es-define-property/test/index.js
new file mode 100644
index 0000000..b4b4688
--- /dev/null
+++ b/backend/node_modules/es-define-property/test/index.js
@@ -0,0 +1,56 @@
+'use strict';
+
+var $defineProperty = require('../');
+
+var test = require('tape');
+var gOPD = require('gopd');
+
+test('defineProperty: supported', { skip: !$defineProperty }, function (t) {
+	t.plan(4);
+
+	t.equal(typeof $defineProperty, 'function', 'defineProperty is supported');
+	if ($defineProperty && gOPD) { // this `if` check is just to shut TS up
+		/** @type {{ a: number, b?: number, c?: number }} */
+		var o = { a: 1 };
+
+		$defineProperty(o, 'b', { enumerable: true, value: 2 });
+		t.deepEqual(
+			gOPD(o, 'b'),
+			{
+				configurable: false,
+				enumerable: true,
+				value: 2,
+				writable: false
+			},
+			'property descriptor is as expected'
+		);
+
+		$defineProperty(o, 'c', { enumerable: false, value: 3, writable: true });
+		t.deepEqual(
+			gOPD(o, 'c'),
+			{
+				configurable: false,
+				enumerable: false,
+				value: 3,
+				writable: true
+			},
+			'property descriptor is as expected'
+		);
+	}
+
+	t.equal($defineProperty, Object.defineProperty, 'defineProperty is Object.defineProperty');
+
+	t.end();
+});
+
+test('defineProperty: not supported', { skip: !!$defineProperty }, function (t) {
+	t.notOk($defineProperty, 'defineProperty is not supported');
+
+	t.match(
+		typeof $defineProperty,
+		/^(?:undefined|boolean)$/,
+		'`typeof defineProperty` is `undefined` or `boolean`'
+	);
+
+	t.end();
+});
diff --git a/backend/node_modules/es-define-property/tsconfig.json b/backend/node_modules/es-define-property/tsconfig.json
new file mode 100644
index 0000000..5a49992
--- /dev/null
+++ b/backend/node_modules/es-define-property/tsconfig.json
@@ -0,0 +1,10 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		"target": "es2022",
+	},
+	"exclude": [
+		"coverage",
+		"test/list-exports"
+	],
+}
diff --git a/backend/node_modules/es-errors/.eslintrc b/backend/node_modules/es-errors/.eslintrc
new file mode 100644
index 0000000..3b5d9e9
--- /dev/null
+++ b/backend/node_modules/es-errors/.eslintrc
@@ -0,0 +1,5 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+}
diff --git a/backend/node_modules/es-errors/.github/FUNDING.yml b/backend/node_modules/es-errors/.github/FUNDING.yml
new file mode 100644
index 0000000..f1b8805
--- /dev/null
+++ b/backend/node_modules/es-errors/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/es-errors
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with a single custom sponsorship URL
diff --git a/backend/node_modules/es-errors/CHANGELOG.md b/backend/node_modules/es-errors/CHANGELOG.md
new file mode 100644
index 0000000..204a9e9
--- /dev/null
+++ b/backend/node_modules/es-errors/CHANGELOG.md
@@ -0,0 +1,40 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.3.0](https://github.com/ljharb/es-errors/compare/v1.2.1...v1.3.0) - 2024-02-05
+
+### Commits
+
+- [New] add `EvalError` and `URIError` [`1927627`](https://github.com/ljharb/es-errors/commit/1927627ba68cb6c829d307231376c967db53acdf)
+
+## [v1.2.1](https://github.com/ljharb/es-errors/compare/v1.2.0...v1.2.1) - 2024-02-04
+
+### Commits
+
+- [Fix] add missing `exports` entry [`5bb5f28`](https://github.com/ljharb/es-errors/commit/5bb5f280f98922701109d6ebb82eea2257cecc7e)
+
+## [v1.2.0](https://github.com/ljharb/es-errors/compare/v1.1.0...v1.2.0) - 2024-02-04
+
+### Commits
+
+- [New] add `ReferenceError` [`6d8cf5b`](https://github.com/ljharb/es-errors/commit/6d8cf5bbb6f3f598d02cf6f30e468ba2caa8e143)
+
+## [v1.1.0](https://github.com/ljharb/es-errors/compare/v1.0.0...v1.1.0) - 2024-02-04
+
+### Commits
+
+- [New] add base Error [`2983ab6`](https://github.com/ljharb/es-errors/commit/2983ab65f7bc5441276cb021dc3aa03c78881698)
+
+## v1.0.0 - 2024-02-03
+
+### Commits
+
+- Initial implementation, tests, readme, type [`8f47631`](https://github.com/ljharb/es-errors/commit/8f476317e9ad76f40ad648081829b1a1a3a1288b)
+- Initial commit [`ea5d099`](https://github.com/ljharb/es-errors/commit/ea5d099ef18e550509ab9e2be000526afd81c385)
+- npm init [`6f5ebf9`](https://github.com/ljharb/es-errors/commit/6f5ebf9cead474dadd72b9e63dad315820a089ae)
+- Only apps should have lockfiles [`e1a0aeb`](https://github.com/ljharb/es-errors/commit/e1a0aeb7b80f5cfc56be54d6b2100e915d47def8)
+- [meta] add `sideEffects` flag [`a9c7d46`](https://github.com/ljharb/es-errors/commit/a9c7d460a492f1d8a241c836bc25a322a19cc043)
diff --git a/backend/node_modules/es-errors/LICENSE b/backend/node_modules/es-errors/LICENSE
new file mode 100644
index 0000000..f82f389
--- /dev/null
+++ b/backend/node_modules/es-errors/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/es-errors/README.md b/backend/node_modules/es-errors/README.md
new file mode 100644
index 0000000..8dbfacf
--- /dev/null
+++ b/backend/node_modules/es-errors/README.md
@@ -0,0 +1,55 @@
+# es-errors <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+A simple cache for a few of the JS Error constructors.
+
+## Example
+
+```js
+const assert = require('assert');
+
+const Base = require('es-errors');
+const Eval = require('es-errors/eval');
+const Range = require('es-errors/range');
+const Ref = require('es-errors/ref');
+const Syntax = require('es-errors/syntax');
+const Type = require('es-errors/type');
+const URI = require('es-errors/uri');
+
+assert.equal(Base, Error);
+assert.equal(Eval, EvalError);
+assert.equal(Range, RangeError);
+assert.equal(Ref, ReferenceError);
+assert.equal(Syntax, SyntaxError);
+assert.equal(Type, TypeError);
+assert.equal(URI, URIError);
+```
+
+## Tests
+Simply clone the repo, `npm install`, and run `npm test`
+
+## Security
+
+Please email [@ljharb](https://github.com/ljharb) or see https://tidelift.com/security if you have a potential security vulnerability to report.
+
+[package-url]: https://npmjs.org/package/es-errors
+[npm-version-svg]: https://versionbadg.es/ljharb/es-errors.svg
+[deps-svg]: https://david-dm.org/ljharb/es-errors.svg
+[deps-url]: https://david-dm.org/ljharb/es-errors
+[dev-deps-svg]: https://david-dm.org/ljharb/es-errors/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/es-errors#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/es-errors.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/es-errors.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/es-errors.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=es-errors
+[codecov-image]: https://codecov.io/gh/ljharb/es-errors/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/es-errors/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/es-errors
+[actions-url]: https://github.com/ljharb/es-errors/actions
diff --git a/backend/node_modules/es-errors/eval.d.ts b/backend/node_modules/es-errors/eval.d.ts
new file mode 100644
index 0000000..e4210e0
--- /dev/null
+++ b/backend/node_modules/es-errors/eval.d.ts
@@ -0,0 +1,3 @@
+declare const EvalError: EvalErrorConstructor;
+
+export = EvalError;
diff --git a/backend/node_modules/es-errors/eval.js b/backend/node_modules/es-errors/eval.js
new file mode 100644
index 0000000..725ccb6
--- /dev/null
+++ b/backend/node_modules/es-errors/eval.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./eval')} */
+module.exports = EvalError;
diff --git a/backend/node_modules/es-errors/index.d.ts b/backend/node_modules/es-errors/index.d.ts
new file mode 100644
index 0000000..69bdbc9
--- /dev/null
+++ b/backend/node_modules/es-errors/index.d.ts
@@ -0,0 +1,3 @@
+declare const Error: ErrorConstructor;
+
+export = Error;
diff --git a/backend/node_modules/es-errors/index.js b/backend/node_modules/es-errors/index.js
new file mode 100644
index 0000000..cc0c521
--- /dev/null
+++ b/backend/node_modules/es-errors/index.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('.')} */
+module.exports = Error;
diff --git a/backend/node_modules/es-errors/package.json b/backend/node_modules/es-errors/package.json
new file mode 100644
index 0000000..ff8c2a5
--- /dev/null
+++ b/backend/node_modules/es-errors/package.json
@@ -0,0 +1,80 @@
+{
+	"name": "es-errors",
+	"version": "1.3.0",
+	"description": "A simple cache for a few of the JS Error constructors.",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./eval": "./eval.js",
+		"./range": "./range.js",
+		"./ref": "./ref.js",
+		"./syntax": "./syntax.js",
+		"./type": "./type.js",
+		"./uri": "./uri.js",
+		"./package.json": "./package.json"
+	},
+	"sideEffects": false,
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublishOnly": "safe-publish-latest",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"pretest": "npm run lint",
+		"test": "npm run tests-only",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"posttest": "aud --production",
+		"prelint": "evalmd README.md",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "tsc -p . && eclint check $(git ls-files | xargs find 2> /dev/null | grep -vE 'node_modules|\\.git' | grep -v dist/)",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/es-errors.git"
+	},
+	"keywords": [
+		"javascript",
+		"ecmascript",
+		"error",
+		"typeerror",
+		"syntaxerror",
+		"rangeerror"
+	],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/es-errors/issues"
+	},
+	"homepage": "https://github.com/ljharb/es-errors#readme",
+	"devDependencies": {
+		"@ljharb/eslint-config": "^21.1.0",
+		"@types/tape": "^5.6.4",
+		"aud": "^2.0.4",
+		"auto-changelog": "^2.4.0",
+		"eclint": "^2.8.1",
+		"eslint": "^8.8.0",
+		"evalmd": "^0.0.19",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.7.4",
+		"typescript": "next"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/backend/node_modules/es-errors/range.d.ts b/backend/node_modules/es-errors/range.d.ts
new file mode 100644
index 0000000..3a12e86
--- /dev/null
+++ b/backend/node_modules/es-errors/range.d.ts
@@ -0,0 +1,3 @@
+declare const RangeError: RangeErrorConstructor;
+
+export = RangeError;
diff --git a/backend/node_modules/es-errors/range.js b/backend/node_modules/es-errors/range.js
new file mode 100644
index 0000000..2044fe0
--- /dev/null
+++ b/backend/node_modules/es-errors/range.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./range')} */
+module.exports = RangeError;
diff --git a/backend/node_modules/es-errors/ref.d.ts b/backend/node_modules/es-errors/ref.d.ts
new file mode 100644
index 0000000..a13107e
--- /dev/null
+++ b/backend/node_modules/es-errors/ref.d.ts
@@ -0,0 +1,3 @@
+declare const ReferenceError: ReferenceErrorConstructor;
+
+export = ReferenceError;
diff --git a/backend/node_modules/es-errors/ref.js b/backend/node_modules/es-errors/ref.js
new file mode 100644
index 0000000..d7c430f
--- /dev/null
+++ b/backend/node_modules/es-errors/ref.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./ref')} */
+module.exports = ReferenceError;
diff --git a/backend/node_modules/es-errors/syntax.d.ts b/backend/node_modules/es-errors/syntax.d.ts
new file mode 100644
index 0000000..6a0c53c
--- /dev/null
+++ b/backend/node_modules/es-errors/syntax.d.ts
@@ -0,0 +1,3 @@
+declare const SyntaxError: SyntaxErrorConstructor;
+
+export = SyntaxError;
diff --git a/backend/node_modules/es-errors/syntax.js b/backend/node_modules/es-errors/syntax.js
new file mode 100644
index 0000000..5f5fdde
--- /dev/null
+++ b/backend/node_modules/es-errors/syntax.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./syntax')} */
+module.exports = SyntaxError;
diff --git a/backend/node_modules/es-errors/test/index.js b/backend/node_modules/es-errors/test/index.js
new file mode 100644
index 0000000..1ff0277
--- /dev/null
+++ b/backend/node_modules/es-errors/test/index.js
@@ -0,0 +1,19 @@
+'use strict';
+
+var test = require('tape');
+
+var E = require('../');
+var R = require('../range');
+var Ref = require('../ref');
+var S = require('../syntax');
+var T = require('../type');
+
+test('errors', function (t) {
+	t.equal(E, Error);
+	t.equal(R, RangeError);
+	t.equal(Ref, ReferenceError);
+	t.equal(S, SyntaxError);
+	t.equal(T, TypeError);
+
+	t.end();
+});
diff --git a/backend/node_modules/es-errors/tsconfig.json b/backend/node_modules/es-errors/tsconfig.json
new file mode 100644
index 0000000..99dfeb6
--- /dev/null
+++ b/backend/node_modules/es-errors/tsconfig.json
@@ -0,0 +1,49 @@
+{
+	"compilerOptions": {
+		/* Visit https://aka.ms/tsconfig.json to read more about this file */
+
+		/* Projects */
+
+		/* Language and Environment */
+		"target": "es5",																	/* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
+		// "lib": [],																				/* Specify a set of bundled library declaration files that describe the target runtime environment. */
+		// "noLib": true,																		/* Disable including any library files, including the default lib.d.ts. */
+		"useDefineForClassFields": true,										 /* Emit ECMAScript-standard-compliant class fields. */
+		// "moduleDetection": "auto",												/* Control what method is used to detect module-format JS files. */
+
+		/* Modules */
+		"module": "commonjs",																/* Specify what module code is generated. */
+		// "rootDir": "./",																	/* Specify the root folder within your source files. */
+		// "moduleResolution": "node",											 /* Specify how TypeScript looks up a file from a given module specifier. */
+		// "baseUrl": "./",																	/* Specify the base directory to resolve non-relative module names. */
+		// "paths": {},																			/* Specify a set of entries that re-map imports to additional lookup locations. */
+		// "rootDirs": [],																	 /* Allow multiple folders to be treated as one when resolving modules. */
+		// "typeRoots": ["types"],													 /* Specify multiple folders that act like `./node_modules/@types`. */
+		"resolveJsonModule": true,													 /* Enable importing .json files. */
+		// "allowArbitraryExtensions": true,								 /* Enable importing files with any extension, provided a declaration file is present. */
+
+		/* JavaScript Support */
+		"allowJs": true,																		 /* Allow JavaScript files to be a part of your program. Use the `checkJS` option to get errors from these files. */
+		"checkJs": true,																		 /* Enable error reporting in type-checked JavaScript files. */
+		"maxNodeModuleJsDepth": 1,													 /* Specify the maximum folder depth used for checking JavaScript files from `node_modules`. Only applicable with `allowJs`. */
+
+		/* Emit */
+		"declaration": true,																 /* Generate .d.ts files from TypeScript and JavaScript files in your project. */
+		"declarationMap": true,															/* Create sourcemaps for d.ts files. */
+		"noEmit": true,																			/* Disable emitting files from a compilation. */
+
+		/* Interop Constraints */
+		"allowSyntheticDefaultImports": true,								/* Allow `import x from y` when a module doesn't have a default export. */
+		"esModuleInterop": true,														 /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables `allowSyntheticDefaultImports` for type compatibility. */
+		"forceConsistentCasingInFileNames": true,						/* Ensure that casing is correct in imports. */
+
+		/* Type Checking */
+		"strict": true,																			/* Enable all strict type-checking options. */
+
+		/* Completeness */
+		// "skipLibCheck": true															/* Skip type checking all .d.ts files. */
+	},
+	"exclude": [
+		"coverage",
+	],
+}
diff --git a/backend/node_modules/es-errors/type.d.ts b/backend/node_modules/es-errors/type.d.ts
new file mode 100644
index 0000000..576fb51
--- /dev/null
+++ b/backend/node_modules/es-errors/type.d.ts
@@ -0,0 +1,3 @@
+declare const TypeError: TypeErrorConstructor
+
+export = TypeError;
diff --git a/backend/node_modules/es-errors/type.js b/backend/node_modules/es-errors/type.js
new file mode 100644
index 0000000..9769e44
--- /dev/null
+++ b/backend/node_modules/es-errors/type.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./type')} */
+module.exports = TypeError;
diff --git a/backend/node_modules/es-errors/uri.d.ts b/backend/node_modules/es-errors/uri.d.ts
new file mode 100644
index 0000000..c3261c9
--- /dev/null
+++ b/backend/node_modules/es-errors/uri.d.ts
@@ -0,0 +1,3 @@
+declare const URIError: URIErrorConstructor;
+
+export = URIError;
diff --git a/backend/node_modules/es-errors/uri.js b/backend/node_modules/es-errors/uri.js
new file mode 100644
index 0000000..e9cd1c7
--- /dev/null
+++ b/backend/node_modules/es-errors/uri.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./uri')} */
+module.exports = URIError;
diff --git a/backend/node_modules/es-object-atoms/.eslintrc b/backend/node_modules/es-object-atoms/.eslintrc
new file mode 100644
index 0000000..d90a1bc
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/.eslintrc
@@ -0,0 +1,16 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"eqeqeq": ["error", "allow-null"],
+		"id-length": "off",
+		"new-cap": ["error", {
+			"capIsNewExceptions": [
+				"RequireObjectCoercible",
+				"ToObject",
+			],
+		}],
+	},
+}
diff --git a/backend/node_modules/es-object-atoms/.github/FUNDING.yml b/backend/node_modules/es-object-atoms/.github/FUNDING.yml
new file mode 100644
index 0000000..352bfda
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/es-object
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with a single custom sponsorship URL
diff --git a/backend/node_modules/es-object-atoms/CHANGELOG.md b/backend/node_modules/es-object-atoms/CHANGELOG.md
new file mode 100644
index 0000000..fdd2abe
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/CHANGELOG.md
@@ -0,0 +1,37 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.1.1](https://github.com/ljharb/es-object-atoms/compare/v1.1.0...v1.1.1) - 2025-01-14
+
+### Commits
+
+- [types] `ToObject`: improve types [`cfe8c8a`](https://github.com/ljharb/es-object-atoms/commit/cfe8c8a105c44820cb22e26f62d12ef0ad9715c8)
+
+## [v1.1.0](https://github.com/ljharb/es-object-atoms/compare/v1.0.1...v1.1.0) - 2025-01-14
+
+### Commits
+
+- [New] add `isObject` [`51e4042`](https://github.com/ljharb/es-object-atoms/commit/51e4042df722eb3165f40dc5f4bf33d0197ecb07)
+
+## [v1.0.1](https://github.com/ljharb/es-object-atoms/compare/v1.0.0...v1.0.1) - 2025-01-13
+
+### Commits
+
+- [Dev Deps] update `@ljharb/eslint-config`, `@ljharb/tsconfig`, `@types/tape`, `auto-changelog`, `tape` [`38ab9eb`](https://github.com/ljharb/es-object-atoms/commit/38ab9eb00b62c2f4668644f5e513d9b414ebd595)
+- [types] improve types [`7d1beb8`](https://github.com/ljharb/es-object-atoms/commit/7d1beb887958b78b6a728a210a1c8370ab7e2aa1)
+- [Tests] replace `aud` with `npm audit` [`25863ba`](https://github.com/ljharb/es-object-atoms/commit/25863baf99178f1d1ad33d1120498db28631907e)
+- [Dev Deps] add missing peer dep [`c012309`](https://github.com/ljharb/es-object-atoms/commit/c0123091287e6132d6f4240496340c427433df28)
+
+## v1.0.0 - 2024-03-16
+
+### Commits
+
+- Initial implementation, tests, readme, types [`f1499db`](https://github.com/ljharb/es-object-atoms/commit/f1499db7d3e1741e64979c61d645ab3137705e82)
+- Initial commit [`99eedc7`](https://github.com/ljharb/es-object-atoms/commit/99eedc7b5fde38a50a28d3c8b724706e3e4c5f6a)
+- [meta] rename repo [`fc851fa`](https://github.com/ljharb/es-object-atoms/commit/fc851fa70616d2d182aaf0bd02c2ed7084dea8fa)
+- npm init [`b909377`](https://github.com/ljharb/es-object-atoms/commit/b909377c50049bd0ec575562d20b0f9ebae8947f)
+- Only apps should have lockfiles [`7249edd`](https://github.com/ljharb/es-object-atoms/commit/7249edd2178c1b9ddfc66ffcc6d07fdf0d28efc1)
diff --git a/backend/node_modules/es-object-atoms/LICENSE b/backend/node_modules/es-object-atoms/LICENSE
new file mode 100644
index 0000000..f82f389
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/es-object-atoms/README.md b/backend/node_modules/es-object-atoms/README.md
new file mode 100644
index 0000000..447695b
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/README.md
@@ -0,0 +1,63 @@
+# es-object-atoms <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+ES Object-related atoms: Object, ToObject, RequireObjectCoercible.
+
+## Example
+
+```js
+const assert = require('assert');
+
+const $Object = require('es-object-atoms');
+const isObject = require('es-object-atoms/isObject');
+const ToObject = require('es-object-atoms/ToObject');
+const RequireObjectCoercible = require('es-object-atoms/RequireObjectCoercible');
+
+assert.equal($Object, Object);
+assert.throws(() => ToObject(null), TypeError);
+assert.throws(() => ToObject(undefined), TypeError);
+assert.throws(() => RequireObjectCoercible(null), TypeError);
+assert.throws(() => RequireObjectCoercible(undefined), TypeError);
+
+assert.equal(isObject(undefined), false);
+assert.equal(isObject(null), false);
+assert.equal(isObject({}), true);
+assert.equal(isObject([]), true);
+assert.equal(isObject(function () {}), true);
+
+assert.deepEqual(RequireObjectCoercible(true), true);
+assert.deepEqual(ToObject(true), Object(true));
+
+const obj = {};
+assert.equal(RequireObjectCoercible(obj), obj);
+assert.equal(ToObject(obj), obj);
+```
+
+## Tests
+Simply clone the repo, `npm install`, and run `npm test`
+
+## Security
+
+Please email [@ljharb](https://github.com/ljharb) or see https://tidelift.com/security if you have a potential security vulnerability to report.
+
+[package-url]: https://npmjs.org/package/es-object-atoms
+[npm-version-svg]: https://versionbadg.es/ljharb/es-object-atoms.svg
+[deps-svg]: https://david-dm.org/ljharb/es-object-atoms.svg
+[deps-url]: https://david-dm.org/ljharb/es-object-atoms
+[dev-deps-svg]: https://david-dm.org/ljharb/es-object-atoms/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/es-object-atoms#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/es-object-atoms.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/es-object-atoms.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/es-object.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=es-object-atoms
+[codecov-image]: https://codecov.io/gh/ljharb/es-object-atoms/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/es-object-atoms/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/es-object-atoms
+[actions-url]: https://github.com/ljharb/es-object-atoms/actions
diff --git a/backend/node_modules/es-object-atoms/RequireObjectCoercible.d.ts b/backend/node_modules/es-object-atoms/RequireObjectCoercible.d.ts
new file mode 100644
index 0000000..7e26c45
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/RequireObjectCoercible.d.ts
@@ -0,0 +1,3 @@
+declare function RequireObjectCoercible<T extends {}>(value: T, optMessage?: string): T;
+
+export = RequireObjectCoercible;
diff --git a/backend/node_modules/es-object-atoms/RequireObjectCoercible.js b/backend/node_modules/es-object-atoms/RequireObjectCoercible.js
new file mode 100644
index 0000000..8e191c6
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/RequireObjectCoercible.js
@@ -0,0 +1,11 @@
+'use strict';
+
+var $TypeError = require('es-errors/type');
+
+/** @type {import('./RequireObjectCoercible')} */
+module.exports = function RequireObjectCoercible(value) {
+	if (value == null) {
+		throw new $TypeError((arguments.length > 0 && arguments[1]) || ('Cannot call method on ' + value));
+	}
+	return value;
+};
diff --git a/backend/node_modules/es-object-atoms/ToObject.d.ts b/backend/node_modules/es-object-atoms/ToObject.d.ts
new file mode 100644
index 0000000..d6dd302
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/ToObject.d.ts
@@ -0,0 +1,7 @@
+declare function ToObject<T extends object>(value: number): Number;
+declare function ToObject<T extends object>(value: boolean): Boolean;
+declare function ToObject<T extends object>(value: string): String;
+declare function ToObject<T extends object>(value: bigint): BigInt;
+declare function ToObject<T extends object>(value: T): T;
+
+export = ToObject;
diff --git a/backend/node_modules/es-object-atoms/ToObject.js b/backend/node_modules/es-object-atoms/ToObject.js
new file mode 100644
index 0000000..2b99a7d
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/ToObject.js
@@ -0,0 +1,10 @@
+'use strict';
+
+var $Object = require('./');
+var RequireObjectCoercible = require('./RequireObjectCoercible');
+
+/** @type {import('./ToObject')} */
+module.exports = function ToObject(value) {
+	RequireObjectCoercible(value);
+	return $Object(value);
+};
diff --git a/backend/node_modules/es-object-atoms/index.d.ts b/backend/node_modules/es-object-atoms/index.d.ts
new file mode 100644
index 0000000..8bdbfc8
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/index.d.ts
@@ -0,0 +1,3 @@
+declare const Object: ObjectConstructor;
+
+export = Object;
diff --git a/backend/node_modules/es-object-atoms/index.js b/backend/node_modules/es-object-atoms/index.js
new file mode 100644
index 0000000..1d33cef
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/index.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('.')} */
+module.exports = Object;
diff --git a/backend/node_modules/es-object-atoms/isObject.d.ts b/backend/node_modules/es-object-atoms/isObject.d.ts
new file mode 100644
index 0000000..43bee3b
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/isObject.d.ts
@@ -0,0 +1,3 @@
+declare function isObject(x: unknown): x is object;
+
+export = isObject;
diff --git a/backend/node_modules/es-object-atoms/isObject.js b/backend/node_modules/es-object-atoms/isObject.js
new file mode 100644
index 0000000..ec49bf1
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/isObject.js
@@ -0,0 +1,6 @@
+'use strict';
+
+/** @type {import('./isObject')} */
+module.exports = function isObject(x) {
+	return !!x && (typeof x === 'function' || typeof x === 'object');
+};
diff --git a/backend/node_modules/es-object-atoms/package.json b/backend/node_modules/es-object-atoms/package.json
new file mode 100644
index 0000000..f4cec71
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/package.json
@@ -0,0 +1,80 @@
+{
+	"name": "es-object-atoms",
+	"version": "1.1.1",
+	"description": "ES Object-related atoms: Object, ToObject, RequireObjectCoercible",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./RequireObjectCoercible": "./RequireObjectCoercible.js",
+		"./isObject": "./isObject.js",
+		"./ToObject": "./ToObject.js",
+		"./package.json": "./package.json"
+	},
+	"sideEffects": false,
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublishOnly": "safe-publish-latest",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"pretest": "npm run lint",
+		"test": "npm run tests-only",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"posttest": "npx npm@\">= 10.2\" audit --production",
+		"prelint": "evalmd README.md",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "tsc -p . && eclint check $(git ls-files | xargs find 2> /dev/null | grep -vE 'node_modules|\\.git' | grep -v dist/)",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/es-object-atoms.git"
+	},
+	"keywords": [
+		"javascript",
+		"ecmascript",
+		"object",
+		"toobject",
+		"coercible"
+	],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/es-object-atoms/issues"
+	},
+	"homepage": "https://github.com/ljharb/es-object-atoms#readme",
+	"dependencies": {
+		"es-errors": "^1.3.0"
+	},
+	"devDependencies": {
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.3",
+		"@types/tape": "^5.8.1",
+		"auto-changelog": "^2.5.0",
+		"eclint": "^2.8.1",
+		"encoding": "^0.1.13",
+		"eslint": "^8.8.0",
+		"evalmd": "^0.0.19",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/backend/node_modules/es-object-atoms/test/index.js b/backend/node_modules/es-object-atoms/test/index.js
new file mode 100644
index 0000000..430b705
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/test/index.js
@@ -0,0 +1,38 @@
+'use strict';
+
+var test = require('tape');
+
+var $Object = require('../');
+var isObject = require('../isObject');
+var ToObject = require('../ToObject');
+var RequireObjectCoercible = require('..//RequireObjectCoercible');
+
+test('errors', function (t) {
+	t.equal($Object, Object);
+	// @ts-expect-error
+	t['throws'](function () { ToObject(null); }, TypeError);
+	// @ts-expect-error
+	t['throws'](function () { ToObject(undefined); }, TypeError);
+	// @ts-expect-error
+	t['throws'](function () { RequireObjectCoercible(null); }, TypeError);
+	// @ts-expect-error
+	t['throws'](function () { RequireObjectCoercible(undefined); }, TypeError);
+
+	t.deepEqual(RequireObjectCoercible(true), true);
+	t.deepEqual(ToObject(true), Object(true));
+	t.deepEqual(ToObject(42), Object(42));
+	var f = function () {};
+	t.equal(ToObject(f), f);
+
+	t.equal(isObject(undefined), false);
+	t.equal(isObject(null), false);
+	t.equal(isObject({}), true);
+	t.equal(isObject([]), true);
+	t.equal(isObject(function () {}), true);
+
+	var obj = {};
+	t.equal(RequireObjectCoercible(obj), obj);
+	t.equal(ToObject(obj), obj);
+
+	t.end();
+});
diff --git a/backend/node_modules/es-object-atoms/tsconfig.json b/backend/node_modules/es-object-atoms/tsconfig.json
new file mode 100644
index 0000000..1f73cb7
--- /dev/null
+++ b/backend/node_modules/es-object-atoms/tsconfig.json
@@ -0,0 +1,6 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		"target": "es5",
+	},
+}
diff --git a/backend/node_modules/escape-html/LICENSE b/backend/node_modules/escape-html/LICENSE
new file mode 100644
index 0000000..2e70de9
--- /dev/null
+++ b/backend/node_modules/escape-html/LICENSE
@@ -0,0 +1,24 @@
+(The MIT License)
+
+Copyright (c) 2012-2013 TJ Holowaychuk
+Copyright (c) 2015 Andreas Lubbe
+Copyright (c) 2015 Tiancheng "Timothy" Gu
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/escape-html/Readme.md b/backend/node_modules/escape-html/Readme.md
new file mode 100644
index 0000000..653d9ea
--- /dev/null
+++ b/backend/node_modules/escape-html/Readme.md
@@ -0,0 +1,43 @@
+
+# escape-html
+
+  Escape string for use in HTML
+
+## Example
+
+```js
+var escape = require('escape-html');
+var html = escape('foo & bar');
+// -> foo &amp; bar
+```
+
+## Benchmark
+
+```
+$ npm run-script bench
+
+> escape-html@1.0.3 bench nodejs-escape-html
+> node benchmark/index.js
+
+
+  http_parser@1.0
+  node@0.10.33
+  v8@3.14.5.9
+  ares@1.9.0-DEV
+  uv@0.10.29
+  zlib@1.2.3
+  modules@11
+  openssl@1.0.1j
+
+  1 test completed.
+  2 tests completed.
+  3 tests completed.
+
+  no special characters    x 19,435,271 ops/sec ±0.85% (187 runs sampled)
+  single special character x  6,132,421 ops/sec ±0.67% (194 runs sampled)
+  many special characters  x  3,175,826 ops/sec ±0.65% (193 runs sampled)
+```
+
+## License
+
+  MIT
\ No newline at end of file
diff --git a/backend/node_modules/escape-html/index.js b/backend/node_modules/escape-html/index.js
new file mode 100644
index 0000000..bf9e226
--- /dev/null
+++ b/backend/node_modules/escape-html/index.js
@@ -0,0 +1,78 @@
+/*!
+ * escape-html
+ * Copyright(c) 2012-2013 TJ Holowaychuk
+ * Copyright(c) 2015 Andreas Lubbe
+ * Copyright(c) 2015 Tiancheng "Timothy" Gu
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var matchHtmlRegExp = /["'&<>]/;
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = escapeHtml;
+
+/**
+ * Escape special characters in the given string of html.
+ *
+ * @param  {string} string The string to escape for inserting into HTML
+ * @return {string}
+ * @public
+ */
+
+function escapeHtml(string) {
+  var str = '' + string;
+  var match = matchHtmlRegExp.exec(str);
+
+  if (!match) {
+    return str;
+  }
+
+  var escape;
+  var html = '';
+  var index = 0;
+  var lastIndex = 0;
+
+  for (index = match.index; index < str.length; index++) {
+    switch (str.charCodeAt(index)) {
+      case 34: // "
+        escape = '&quot;';
+        break;
+      case 38: // &
+        escape = '&amp;';
+        break;
+      case 39: // '
+        escape = '&#39;';
+        break;
+      case 60: // <
+        escape = '&lt;';
+        break;
+      case 62: // >
+        escape = '&gt;';
+        break;
+      default:
+        continue;
+    }
+
+    if (lastIndex !== index) {
+      html += str.substring(lastIndex, index);
+    }
+
+    lastIndex = index + 1;
+    html += escape;
+  }
+
+  return lastIndex !== index
+    ? html + str.substring(lastIndex, index)
+    : html;
+}
diff --git a/backend/node_modules/escape-html/package.json b/backend/node_modules/escape-html/package.json
new file mode 100644
index 0000000..57ec7bd
--- /dev/null
+++ b/backend/node_modules/escape-html/package.json
@@ -0,0 +1,24 @@
+{
+  "name": "escape-html",
+  "description": "Escape string for use in HTML",
+  "version": "1.0.3",
+  "license": "MIT",
+  "keywords": [
+    "escape",
+    "html",
+    "utility"
+  ],
+  "repository": "component/escape-html",
+  "devDependencies": {
+    "benchmark": "1.0.0",
+    "beautify-benchmark": "0.2.4"
+  },
+  "files": [
+    "LICENSE",
+    "Readme.md",
+    "index.js"
+  ],
+  "scripts": {
+    "bench": "node benchmark/index.js"
+  }
+}
diff --git a/backend/node_modules/etag/HISTORY.md b/backend/node_modules/etag/HISTORY.md
new file mode 100644
index 0000000..222b293
--- /dev/null
+++ b/backend/node_modules/etag/HISTORY.md
@@ -0,0 +1,83 @@
+1.8.1 / 2017-09-12
+==================
+
+  * perf: replace regular expression with substring
+
+1.8.0 / 2017-02-18
+==================
+
+  * Use SHA1 instead of MD5 for ETag hashing
+    - Improves performance for larger entities
+    - Works with FIPS 140-2 OpenSSL configuration
+
+1.7.0 / 2015-06-08
+==================
+
+  * Always include entity length in ETags for hash length extensions
+  * Generate non-Stats ETags using MD5 only (no longer CRC32)
+  * Improve stat performance by removing hashing
+  * Remove base64 padding in ETags to shorten
+  * Use MD5 instead of MD4 in weak ETags over 1KB
+
+1.6.0 / 2015-05-10
+==================
+
+  * Improve support for JXcore
+  * Remove requirement of `atime` in the stats object
+  * Support "fake" stats objects in environments without `fs`
+
+1.5.1 / 2014-11-19
+==================
+
+  * deps: crc@3.2.1
+    - Minor fixes
+
+1.5.0 / 2014-10-14
+==================
+
+  * Improve string performance
+  * Slightly improve speed for weak ETags over 1KB
+
+1.4.0 / 2014-09-21
+==================
+
+  * Support "fake" stats objects
+  * Support Node.js 0.6
+
+1.3.1 / 2014-09-14
+==================
+
+  * Use the (new and improved) `crc` for crc32
+
+1.3.0 / 2014-08-29
+==================
+
+  * Default strings to strong ETags
+  * Improve speed for weak ETags over 1KB
+
+1.2.1 / 2014-08-29
+==================
+
+  * Use the (much faster) `buffer-crc32` for crc32
+
+1.2.0 / 2014-08-24
+==================
+
+  * Add support for file stat objects
+
+1.1.0 / 2014-08-24
+==================
+
+  * Add fast-path for empty entity
+  * Add weak ETag generation
+  * Shrink size of generated ETags
+
+1.0.1 / 2014-08-24
+==================
+
+  * Fix behavior of string containing Unicode
+
+1.0.0 / 2014-05-18
+==================
+
+  * Initial release
diff --git a/backend/node_modules/etag/LICENSE b/backend/node_modules/etag/LICENSE
new file mode 100644
index 0000000..cab251c
--- /dev/null
+++ b/backend/node_modules/etag/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2014-2016 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/etag/README.md b/backend/node_modules/etag/README.md
new file mode 100644
index 0000000..09c2169
--- /dev/null
+++ b/backend/node_modules/etag/README.md
@@ -0,0 +1,159 @@
+# etag
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Create simple HTTP ETags
+
+This module generates HTTP ETags (as defined in RFC 7232) for use in
+HTTP responses.
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install etag
+```
+
+## API
+
+<!-- eslint-disable no-unused-vars -->
+
+```js
+var etag = require('etag')
+```
+
+### etag(entity, [options])
+
+Generate a strong ETag for the given entity. This should be the complete
+body of the entity. Strings, `Buffer`s, and `fs.Stats` are accepted. By
+default, a strong ETag is generated except for `fs.Stats`, which will
+generate a weak ETag (this can be overwritten by `options.weak`).
+
+<!-- eslint-disable no-undef -->
+
+```js
+res.setHeader('ETag', etag(body))
+```
+
+#### Options
+
+`etag` accepts these properties in the options object.
+
+##### weak
+
+Specifies if the generated ETag will include the weak validator mark (that
+is, the leading `W/`). The actual entity tag is the same. The default value
+is `false`, unless the `entity` is `fs.Stats`, in which case it is `true`.
+
+## Testing
+
+```sh
+$ npm test
+```
+
+## Benchmark
+
+```bash
+$ npm run-script bench
+
+> etag@1.8.1 bench nodejs-etag
+> node benchmark/index.js
+
+  http_parser@2.7.0
+  node@6.11.1
+  v8@5.1.281.103
+  uv@1.11.0
+  zlib@1.2.11
+  ares@1.10.1-DEV
+  icu@58.2
+  modules@48
+  openssl@1.0.2k
+
+> node benchmark/body0-100b.js
+
+  100B body
+
+  4 tests completed.
+
+  buffer - strong x 258,647 ops/sec ±1.07% (180 runs sampled)
+  buffer - weak   x 263,812 ops/sec ±0.61% (184 runs sampled)
+  string - strong x 259,955 ops/sec ±1.19% (185 runs sampled)
+  string - weak   x 264,356 ops/sec ±1.09% (184 runs sampled)
+
+> node benchmark/body1-1kb.js
+
+  1KB body
+
+  4 tests completed.
+
+  buffer - strong x 189,018 ops/sec ±1.12% (182 runs sampled)
+  buffer - weak   x 190,586 ops/sec ±0.81% (186 runs sampled)
+  string - strong x 144,272 ops/sec ±0.96% (188 runs sampled)
+  string - weak   x 145,380 ops/sec ±1.43% (187 runs sampled)
+
+> node benchmark/body2-5kb.js
+
+  5KB body
+
+  4 tests completed.
+
+  buffer - strong x 92,435 ops/sec ±0.42% (188 runs sampled)
+  buffer - weak   x 92,373 ops/sec ±0.58% (189 runs sampled)
+  string - strong x 48,850 ops/sec ±0.56% (186 runs sampled)
+  string - weak   x 49,380 ops/sec ±0.56% (190 runs sampled)
+
+> node benchmark/body3-10kb.js
+
+  10KB body
+
+  4 tests completed.
+
+  buffer - strong x 55,989 ops/sec ±0.93% (188 runs sampled)
+  buffer - weak   x 56,148 ops/sec ±0.55% (190 runs sampled)
+  string - strong x 27,345 ops/sec ±0.43% (188 runs sampled)
+  string - weak   x 27,496 ops/sec ±0.45% (190 runs sampled)
+
+> node benchmark/body4-100kb.js
+
+  100KB body
+
+  4 tests completed.
+
+  buffer - strong x 7,083 ops/sec ±0.22% (190 runs sampled)
+  buffer - weak   x 7,115 ops/sec ±0.26% (191 runs sampled)
+  string - strong x 3,068 ops/sec ±0.34% (190 runs sampled)
+  string - weak   x 3,096 ops/sec ±0.35% (190 runs sampled)
+
+> node benchmark/stats.js
+
+  stat
+
+  4 tests completed.
+
+  real - strong x 871,642 ops/sec ±0.34% (189 runs sampled)
+  real - weak   x 867,613 ops/sec ±0.39% (190 runs sampled)
+  fake - strong x 401,051 ops/sec ±0.40% (189 runs sampled)
+  fake - weak   x 400,100 ops/sec ±0.47% (188 runs sampled)
+```
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/etag.svg
+[npm-url]: https://npmjs.org/package/etag
+[node-version-image]: https://img.shields.io/node/v/etag.svg
+[node-version-url]: https://nodejs.org/en/download/
+[travis-image]: https://img.shields.io/travis/jshttp/etag/master.svg
+[travis-url]: https://travis-ci.org/jshttp/etag
+[coveralls-image]: https://img.shields.io/coveralls/jshttp/etag/master.svg
+[coveralls-url]: https://coveralls.io/r/jshttp/etag?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/etag.svg
+[downloads-url]: https://npmjs.org/package/etag
diff --git a/backend/node_modules/etag/index.js b/backend/node_modules/etag/index.js
new file mode 100644
index 0000000..2a585c9
--- /dev/null
+++ b/backend/node_modules/etag/index.js
@@ -0,0 +1,131 @@
+/*!
+ * etag
+ * Copyright(c) 2014-2016 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = etag
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var crypto = require('crypto')
+var Stats = require('fs').Stats
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var toString = Object.prototype.toString
+
+/**
+ * Generate an entity tag.
+ *
+ * @param {Buffer|string} entity
+ * @return {string}
+ * @private
+ */
+
+function entitytag (entity) {
+  if (entity.length === 0) {
+    // fast-path empty
+    return '"0-2jmj7l5rSw0yVb/vlWAYkK/YBwk"'
+  }
+
+  // compute hash of entity
+  var hash = crypto
+    .createHash('sha1')
+    .update(entity, 'utf8')
+    .digest('base64')
+    .substring(0, 27)
+
+  // compute length of entity
+  var len = typeof entity === 'string'
+    ? Buffer.byteLength(entity, 'utf8')
+    : entity.length
+
+  return '"' + len.toString(16) + '-' + hash + '"'
+}
+
+/**
+ * Create a simple ETag.
+ *
+ * @param {string|Buffer|Stats} entity
+ * @param {object} [options]
+ * @param {boolean} [options.weak]
+ * @return {String}
+ * @public
+ */
+
+function etag (entity, options) {
+  if (entity == null) {
+    throw new TypeError('argument entity is required')
+  }
+
+  // support fs.Stats object
+  var isStats = isstats(entity)
+  var weak = options && typeof options.weak === 'boolean'
+    ? options.weak
+    : isStats
+
+  // validate argument
+  if (!isStats && typeof entity !== 'string' && !Buffer.isBuffer(entity)) {
+    throw new TypeError('argument entity must be string, Buffer, or fs.Stats')
+  }
+
+  // generate entity tag
+  var tag = isStats
+    ? stattag(entity)
+    : entitytag(entity)
+
+  return weak
+    ? 'W/' + tag
+    : tag
+}
+
+/**
+ * Determine if object is a Stats object.
+ *
+ * @param {object} obj
+ * @return {boolean}
+ * @api private
+ */
+
+function isstats (obj) {
+  // genuine fs.Stats
+  if (typeof Stats === 'function' && obj instanceof Stats) {
+    return true
+  }
+
+  // quack quack
+  return obj && typeof obj === 'object' &&
+    'ctime' in obj && toString.call(obj.ctime) === '[object Date]' &&
+    'mtime' in obj && toString.call(obj.mtime) === '[object Date]' &&
+    'ino' in obj && typeof obj.ino === 'number' &&
+    'size' in obj && typeof obj.size === 'number'
+}
+
+/**
+ * Generate a tag for a stat.
+ *
+ * @param {object} stat
+ * @return {string}
+ * @private
+ */
+
+function stattag (stat) {
+  var mtime = stat.mtime.getTime().toString(16)
+  var size = stat.size.toString(16)
+
+  return '"' + size + '-' + mtime + '"'
+}
diff --git a/backend/node_modules/etag/package.json b/backend/node_modules/etag/package.json
new file mode 100644
index 0000000..b06ab80
--- /dev/null
+++ b/backend/node_modules/etag/package.json
@@ -0,0 +1,47 @@
+{
+  "name": "etag",
+  "description": "Create simple HTTP ETags",
+  "version": "1.8.1",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "David Björklund <david.bjorklund@gmail.com>"
+  ],
+  "license": "MIT",
+  "keywords": [
+    "etag",
+    "http",
+    "res"
+  ],
+  "repository": "jshttp/etag",
+  "devDependencies": {
+    "beautify-benchmark": "0.2.4",
+    "benchmark": "2.1.4",
+    "eslint": "3.19.0",
+    "eslint-config-standard": "10.2.1",
+    "eslint-plugin-import": "2.7.0",
+    "eslint-plugin-markdown": "1.0.0-beta.6",
+    "eslint-plugin-node": "5.1.1",
+    "eslint-plugin-promise": "3.5.0",
+    "eslint-plugin-standard": "3.0.1",
+    "istanbul": "0.4.5",
+    "mocha": "1.21.5",
+    "safe-buffer": "5.1.1",
+    "seedrandom": "2.4.3"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "README.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "bench": "node benchmark/index.js",
+    "lint": "eslint --plugin markdown --ext js,md .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/",
+    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/"
+  }
+}
diff --git a/backend/node_modules/express/History.md b/backend/node_modules/express/History.md
new file mode 100644
index 0000000..c234f52
--- /dev/null
+++ b/backend/node_modules/express/History.md
@@ -0,0 +1,3656 @@
+4.21.2 / 2024-11-06
+==========
+
+  * deps: path-to-regexp@0.1.12
+    - Fix backtracking protection
+  * deps: path-to-regexp@0.1.11
+    - Throws an error on invalid path values
+
+4.21.1 / 2024-10-08
+==========
+
+  * Backported a fix for [CVE-2024-47764](https://nvd.nist.gov/vuln/detail/CVE-2024-47764)
+
+
+4.21.0 / 2024-09-11
+==========
+
+  * Deprecate `res.location("back")` and `res.redirect("back")` magic string
+  * deps: serve-static@1.16.2
+    * includes send@0.19.0
+  * deps: finalhandler@1.3.1
+  * deps: qs@6.13.0
+
+4.20.0 / 2024-09-10
+==========
+  * deps: serve-static@0.16.0
+    * Remove link renderization in html while redirecting
+  * deps: send@0.19.0
+    * Remove link renderization in html while redirecting
+  * deps: body-parser@0.6.0
+    * add `depth` option to customize the depth level in the parser
+    * IMPORTANT: The default `depth` level for parsing URL-encoded data is now `32` (previously was `Infinity`)
+  * Remove link renderization in html while using `res.redirect`
+  * deps: path-to-regexp@0.1.10
+    - Adds support for named matching groups in the routes using a regex
+    - Adds backtracking protection to parameters without regexes defined
+  * deps: encodeurl@~2.0.0
+    - Removes encoding of `\`, `|`, and `^` to align better with URL spec
+  * Deprecate passing `options.maxAge` and `options.expires` to `res.clearCookie`
+    - Will be ignored in v5, clearCookie will set a cookie with an expires in the past to instruct clients to delete the cookie
+
+4.19.2 / 2024-03-25
+==========
+
+  * Improved fix for open redirect allow list bypass
+
+4.19.1 / 2024-03-20
+==========
+
+  * Allow passing non-strings to res.location with new encoding handling checks
+
+4.19.0 / 2024-03-20
+==========
+
+  * Prevent open redirect allow list bypass due to encodeurl
+  * deps: cookie@0.6.0
+
+4.18.3 / 2024-02-29
+==========
+
+  * Fix routing requests without method
+  * deps: body-parser@1.20.2
+    - Fix strict json error message on Node.js 19+
+    - deps: content-type@~1.0.5
+    - deps: raw-body@2.5.2
+  * deps: cookie@0.6.0
+    - Add `partitioned` option
+
+4.18.2 / 2022-10-08
+===================
+
+  * Fix regression routing a large stack in a single route
+  * deps: body-parser@1.20.1
+    - deps: qs@6.11.0
+    - perf: remove unnecessary object clone
+  * deps: qs@6.11.0
+
+4.18.1 / 2022-04-29
+===================
+
+  * Fix hanging on large stack of sync routes
+
+4.18.0 / 2022-04-25
+===================
+
+  * Add "root" option to `res.download`
+  * Allow `options` without `filename` in `res.download`
+  * Deprecate string and non-integer arguments to `res.status`
+  * Fix behavior of `null`/`undefined` as `maxAge` in `res.cookie`
+  * Fix handling very large stacks of sync middleware
+  * Ignore `Object.prototype` values in settings through `app.set`/`app.get`
+  * Invoke `default` with same arguments as types in `res.format`
+  * Support proper 205 responses using `res.send`
+  * Use `http-errors` for `res.format` error
+  * deps: body-parser@1.20.0
+    - Fix error message for json parse whitespace in `strict`
+    - Fix internal error when inflated body exceeds limit
+    - Prevent loss of async hooks context
+    - Prevent hanging when request already read
+    - deps: depd@2.0.0
+    - deps: http-errors@2.0.0
+    - deps: on-finished@2.4.1
+    - deps: qs@6.10.3
+    - deps: raw-body@2.5.1
+  * deps: cookie@0.5.0
+    - Add `priority` option
+    - Fix `expires` option to reject invalid dates
+  * deps: depd@2.0.0
+    - Replace internal `eval` usage with `Function` constructor
+    - Use instance methods on `process` to check for listeners
+  * deps: finalhandler@1.2.0
+    - Remove set content headers that break response
+    - deps: on-finished@2.4.1
+    - deps: statuses@2.0.1
+  * deps: on-finished@2.4.1
+    - Prevent loss of async hooks context
+  * deps: qs@6.10.3
+  * deps: send@0.18.0
+    - Fix emitted 416 error missing headers property
+    - Limit the headers removed for 304 response
+    - deps: depd@2.0.0
+    - deps: destroy@1.2.0
+    - deps: http-errors@2.0.0
+    - deps: on-finished@2.4.1
+    - deps: statuses@2.0.1
+  * deps: serve-static@1.15.0
+    - deps: send@0.18.0
+  * deps: statuses@2.0.1
+    - Remove code 306
+    - Rename `425 Unordered Collection` to standard `425 Too Early`
+
+4.17.3 / 2022-02-16
+===================
+
+  * deps: accepts@~1.3.8
+    - deps: mime-types@~2.1.34
+    - deps: negotiator@0.6.3
+  * deps: body-parser@1.19.2
+    - deps: bytes@3.1.2
+    - deps: qs@6.9.7
+    - deps: raw-body@2.4.3
+  * deps: cookie@0.4.2
+  * deps: qs@6.9.7
+    * Fix handling of `__proto__` keys
+  * pref: remove unnecessary regexp for trust proxy
+
+4.17.2 / 2021-12-16
+===================
+
+  * Fix handling of `undefined` in `res.jsonp`
+  * Fix handling of `undefined` when `"json escape"` is enabled
+  * Fix incorrect middleware execution with unanchored `RegExp`s
+  * Fix `res.jsonp(obj, status)` deprecation message
+  * Fix typo in `res.is` JSDoc
+  * deps: body-parser@1.19.1
+    - deps: bytes@3.1.1
+    - deps: http-errors@1.8.1
+    - deps: qs@6.9.6
+    - deps: raw-body@2.4.2
+    - deps: safe-buffer@5.2.1
+    - deps: type-is@~1.6.18
+  * deps: content-disposition@0.5.4
+    - deps: safe-buffer@5.2.1
+  * deps: cookie@0.4.1
+    - Fix `maxAge` option to reject invalid values
+  * deps: proxy-addr@~2.0.7
+    - Use `req.socket` over deprecated `req.connection`
+    - deps: forwarded@0.2.0
+    - deps: ipaddr.js@1.9.1
+  * deps: qs@6.9.6
+  * deps: safe-buffer@5.2.1
+  * deps: send@0.17.2
+    - deps: http-errors@1.8.1
+    - deps: ms@2.1.3
+    - pref: ignore empty http tokens
+  * deps: serve-static@1.14.2
+    - deps: send@0.17.2
+  * deps: setprototypeof@1.2.0
+
+4.17.1 / 2019-05-25
+===================
+
+  * Revert "Improve error message for `null`/`undefined` to `res.status`"
+
+4.17.0 / 2019-05-16
+===================
+
+  * Add `express.raw` to parse bodies into `Buffer`
+  * Add `express.text` to parse bodies into string
+  * Improve error message for non-strings to `res.sendFile`
+  * Improve error message for `null`/`undefined` to `res.status`
+  * Support multiple hosts in `X-Forwarded-Host`
+  * deps: accepts@~1.3.7
+  * deps: body-parser@1.19.0
+    - Add encoding MIK
+    - Add petabyte (`pb`) support
+    - Fix parsing array brackets after index
+    - deps: bytes@3.1.0
+    - deps: http-errors@1.7.2
+    - deps: iconv-lite@0.4.24
+    - deps: qs@6.7.0
+    - deps: raw-body@2.4.0
+    - deps: type-is@~1.6.17
+  * deps: content-disposition@0.5.3
+  * deps: cookie@0.4.0
+    - Add `SameSite=None` support
+  * deps: finalhandler@~1.1.2
+    - Set stricter `Content-Security-Policy` header
+    - deps: parseurl@~1.3.3
+    - deps: statuses@~1.5.0
+  * deps: parseurl@~1.3.3
+  * deps: proxy-addr@~2.0.5
+    - deps: ipaddr.js@1.9.0
+  * deps: qs@6.7.0
+    - Fix parsing array brackets after index
+  * deps: range-parser@~1.2.1
+  * deps: send@0.17.1
+    - Set stricter CSP header in redirect & error responses
+    - deps: http-errors@~1.7.2
+    - deps: mime@1.6.0
+    - deps: ms@2.1.1
+    - deps: range-parser@~1.2.1
+    - deps: statuses@~1.5.0
+    - perf: remove redundant `path.normalize` call
+  * deps: serve-static@1.14.1
+    - Set stricter CSP header in redirect response
+    - deps: parseurl@~1.3.3
+    - deps: send@0.17.1
+  * deps: setprototypeof@1.1.1
+  * deps: statuses@~1.5.0
+    - Add `103 Early Hints`
+  * deps: type-is@~1.6.18
+    - deps: mime-types@~2.1.24
+    - perf: prevent internal `throw` on invalid type
+
+4.16.4 / 2018-10-10
+===================
+
+  * Fix issue where `"Request aborted"` may be logged in `res.sendfile`
+  * Fix JSDoc for `Router` constructor
+  * deps: body-parser@1.18.3
+    - Fix deprecation warnings on Node.js 10+
+    - Fix stack trace for strict json parse error
+    - deps: depd@~1.1.2
+    - deps: http-errors@~1.6.3
+    - deps: iconv-lite@0.4.23
+    - deps: qs@6.5.2
+    - deps: raw-body@2.3.3
+    - deps: type-is@~1.6.16
+  * deps: proxy-addr@~2.0.4
+    - deps: ipaddr.js@1.8.0
+  * deps: qs@6.5.2
+  * deps: safe-buffer@5.1.2
+
+4.16.3 / 2018-03-12
+===================
+
+  * deps: accepts@~1.3.5
+    - deps: mime-types@~2.1.18
+  * deps: depd@~1.1.2
+    - perf: remove argument reassignment
+  * deps: encodeurl@~1.0.2
+    - Fix encoding `%` as last character
+  * deps: finalhandler@1.1.1
+    - Fix 404 output for bad / missing pathnames
+    - deps: encodeurl@~1.0.2
+    - deps: statuses@~1.4.0
+  * deps: proxy-addr@~2.0.3
+    - deps: ipaddr.js@1.6.0
+  * deps: send@0.16.2
+    - Fix incorrect end tag in default error & redirects
+    - deps: depd@~1.1.2
+    - deps: encodeurl@~1.0.2
+    - deps: statuses@~1.4.0
+  * deps: serve-static@1.13.2
+    - Fix incorrect end tag in redirects
+    - deps: encodeurl@~1.0.2
+    - deps: send@0.16.2
+  * deps: statuses@~1.4.0
+  * deps: type-is@~1.6.16
+    - deps: mime-types@~2.1.18
+
+4.16.2 / 2017-10-09
+===================
+
+  * Fix `TypeError` in `res.send` when given `Buffer` and `ETag` header set
+  * perf: skip parsing of entire `X-Forwarded-Proto` header
+
+4.16.1 / 2017-09-29
+===================
+
+  * deps: send@0.16.1
+  * deps: serve-static@1.13.1
+    - Fix regression when `root` is incorrectly set to a file
+    - deps: send@0.16.1
+
+4.16.0 / 2017-09-28
+===================
+
+  * Add `"json escape"` setting for `res.json` and `res.jsonp`
+  * Add `express.json` and `express.urlencoded` to parse bodies
+  * Add `options` argument to `res.download`
+  * Improve error message when autoloading invalid view engine
+  * Improve error messages when non-function provided as middleware
+  * Skip `Buffer` encoding when not generating ETag for small response
+  * Use `safe-buffer` for improved Buffer API
+  * deps: accepts@~1.3.4
+    - deps: mime-types@~2.1.16
+  * deps: content-type@~1.0.4
+    - perf: remove argument reassignment
+    - perf: skip parameter parsing when no parameters
+  * deps: etag@~1.8.1
+    - perf: replace regular expression with substring
+  * deps: finalhandler@1.1.0
+    - Use `res.headersSent` when available
+  * deps: parseurl@~1.3.2
+    - perf: reduce overhead for full URLs
+    - perf: unroll the "fast-path" `RegExp`
+  * deps: proxy-addr@~2.0.2
+    - Fix trimming leading / trailing OWS in `X-Forwarded-For`
+    - deps: forwarded@~0.1.2
+    - deps: ipaddr.js@1.5.2
+    - perf: reduce overhead when no `X-Forwarded-For` header
+  * deps: qs@6.5.1
+    - Fix parsing & compacting very deep objects
+  * deps: send@0.16.0
+    - Add 70 new types for file extensions
+    - Add `immutable` option
+    - Fix missing `</html>` in default error & redirects
+    - Set charset as "UTF-8" for .js and .json
+    - Use instance methods on steam to check for listeners
+    - deps: mime@1.4.1
+    - perf: improve path validation speed
+  * deps: serve-static@1.13.0
+    - Add 70 new types for file extensions
+    - Add `immutable` option
+    - Set charset as "UTF-8" for .js and .json
+    - deps: send@0.16.0
+  * deps: setprototypeof@1.1.0
+  * deps: utils-merge@1.0.1
+  * deps: vary@~1.1.2
+    - perf: improve header token parsing speed
+  * perf: re-use options object when generating ETags
+  * perf: remove dead `.charset` set in `res.jsonp`
+
+4.15.5 / 2017-09-24
+===================
+
+  * deps: debug@2.6.9
+  * deps: finalhandler@~1.0.6
+    - deps: debug@2.6.9
+    - deps: parseurl@~1.3.2
+  * deps: fresh@0.5.2
+    - Fix handling of modified headers with invalid dates
+    - perf: improve ETag match loop
+    - perf: improve `If-None-Match` token parsing
+  * deps: send@0.15.6
+    - Fix handling of modified headers with invalid dates
+    - deps: debug@2.6.9
+    - deps: etag@~1.8.1
+    - deps: fresh@0.5.2
+    - perf: improve `If-Match` token parsing
+  * deps: serve-static@1.12.6
+    - deps: parseurl@~1.3.2
+    - deps: send@0.15.6
+    - perf: improve slash collapsing
+
+4.15.4 / 2017-08-06
+===================
+
+  * deps: debug@2.6.8
+  * deps: depd@~1.1.1
+    - Remove unnecessary `Buffer` loading
+  * deps: finalhandler@~1.0.4
+    - deps: debug@2.6.8
+  * deps: proxy-addr@~1.1.5
+    - Fix array argument being altered
+    - deps: ipaddr.js@1.4.0
+  * deps: qs@6.5.0
+  * deps: send@0.15.4
+    - deps: debug@2.6.8
+    - deps: depd@~1.1.1
+    - deps: http-errors@~1.6.2
+  * deps: serve-static@1.12.4
+    - deps: send@0.15.4
+
+4.15.3 / 2017-05-16
+===================
+
+  * Fix error when `res.set` cannot add charset to `Content-Type`
+  * deps: debug@2.6.7
+    - Fix `DEBUG_MAX_ARRAY_LENGTH`
+    - deps: ms@2.0.0
+  * deps: finalhandler@~1.0.3
+    - Fix missing `</html>` in HTML document
+    - deps: debug@2.6.7
+  * deps: proxy-addr@~1.1.4
+    - deps: ipaddr.js@1.3.0
+  * deps: send@0.15.3
+    - deps: debug@2.6.7
+    - deps: ms@2.0.0
+  * deps: serve-static@1.12.3
+    - deps: send@0.15.3
+  * deps: type-is@~1.6.15
+    - deps: mime-types@~2.1.15
+  * deps: vary@~1.1.1
+    - perf: hoist regular expression
+
+4.15.2 / 2017-03-06
+===================
+
+  * deps: qs@6.4.0
+    - Fix regression parsing keys starting with `[`
+
+4.15.1 / 2017-03-05
+===================
+
+  * deps: send@0.15.1
+    - Fix issue when `Date.parse` does not return `NaN` on invalid date
+    - Fix strict violation in broken environments
+  * deps: serve-static@1.12.1
+    - Fix issue when `Date.parse` does not return `NaN` on invalid date
+    - deps: send@0.15.1
+
+4.15.0 / 2017-03-01
+===================
+
+  * Add debug message when loading view engine
+  * Add `next("router")` to exit from router
+  * Fix case where `router.use` skipped requests routes did not
+  * Remove usage of `res._headers` private field
+    - Improves compatibility with Node.js 8 nightly
+  * Skip routing when `req.url` is not set
+  * Use `%o` in path debug to tell types apart
+  * Use `Object.create` to setup request & response prototypes
+  * Use `setprototypeof` module to replace `__proto__` setting
+  * Use `statuses` instead of `http` module for status messages
+  * deps: debug@2.6.1
+    - Allow colors in workers
+    - Deprecated `DEBUG_FD` environment variable set to `3` or higher
+    - Fix error when running under React Native
+    - Use same color for same namespace
+    - deps: ms@0.7.2
+  * deps: etag@~1.8.0
+    - Use SHA1 instead of MD5 for ETag hashing
+    - Works with FIPS 140-2 OpenSSL configuration
+  * deps: finalhandler@~1.0.0
+    - Fix exception when `err` cannot be converted to a string
+    - Fully URL-encode the pathname in the 404
+    - Only include the pathname in the 404 message
+    - Send complete HTML document
+    - Set `Content-Security-Policy: default-src 'self'` header
+    - deps: debug@2.6.1
+  * deps: fresh@0.5.0
+    - Fix false detection of `no-cache` request directive
+    - Fix incorrect result when `If-None-Match` has both `*` and ETags
+    - Fix weak `ETag` matching to match spec
+    - perf: delay reading header values until needed
+    - perf: enable strict mode
+    - perf: hoist regular expressions
+    - perf: remove duplicate conditional
+    - perf: remove unnecessary boolean coercions
+    - perf: skip checking modified time if ETag check failed
+    - perf: skip parsing `If-None-Match` when no `ETag` header
+    - perf: use `Date.parse` instead of `new Date`
+  * deps: qs@6.3.1
+    - Fix array parsing from skipping empty values
+    - Fix compacting nested arrays
+  * deps: send@0.15.0
+    - Fix false detection of `no-cache` request directive
+    - Fix incorrect result when `If-None-Match` has both `*` and ETags
+    - Fix weak `ETag` matching to match spec
+    - Remove usage of `res._headers` private field
+    - Support `If-Match` and `If-Unmodified-Since` headers
+    - Use `res.getHeaderNames()` when available
+    - Use `res.headersSent` when available
+    - deps: debug@2.6.1
+    - deps: etag@~1.8.0
+    - deps: fresh@0.5.0
+    - deps: http-errors@~1.6.1
+  * deps: serve-static@1.12.0
+    - Fix false detection of `no-cache` request directive
+    - Fix incorrect result when `If-None-Match` has both `*` and ETags
+    - Fix weak `ETag` matching to match spec
+    - Remove usage of `res._headers` private field
+    - Send complete HTML document in redirect response
+    - Set default CSP header in redirect response
+    - Support `If-Match` and `If-Unmodified-Since` headers
+    - Use `res.getHeaderNames()` when available
+    - Use `res.headersSent` when available
+    - deps: send@0.15.0
+  * perf: add fast match path for `*` route
+  * perf: improve `req.ips` performance
+
+4.14.1 / 2017-01-28
+===================
+
+  * deps: content-disposition@0.5.2
+  * deps: finalhandler@0.5.1
+    - Fix exception when `err.headers` is not an object
+    - deps: statuses@~1.3.1
+    - perf: hoist regular expressions
+    - perf: remove duplicate validation path
+  * deps: proxy-addr@~1.1.3
+    - deps: ipaddr.js@1.2.0
+  * deps: send@0.14.2
+    - deps: http-errors@~1.5.1
+    - deps: ms@0.7.2
+    - deps: statuses@~1.3.1
+  * deps: serve-static@~1.11.2
+    - deps: send@0.14.2
+  * deps: type-is@~1.6.14
+    - deps: mime-types@~2.1.13
+
+4.14.0 / 2016-06-16
+===================
+
+  * Add `acceptRanges` option to `res.sendFile`/`res.sendfile`
+  * Add `cacheControl` option to `res.sendFile`/`res.sendfile`
+  * Add `options` argument to `req.range`
+    - Includes the `combine` option
+  * Encode URL in `res.location`/`res.redirect` if not already encoded
+  * Fix some redirect handling in `res.sendFile`/`res.sendfile`
+  * Fix Windows absolute path check using forward slashes
+  * Improve error with invalid arguments to `req.get()`
+  * Improve performance for `res.json`/`res.jsonp` in most cases
+  * Improve `Range` header handling in `res.sendFile`/`res.sendfile`
+  * deps: accepts@~1.3.3
+    - Fix including type extensions in parameters in `Accept` parsing
+    - Fix parsing `Accept` parameters with quoted equals
+    - Fix parsing `Accept` parameters with quoted semicolons
+    - Many performance improvements
+    - deps: mime-types@~2.1.11
+    - deps: negotiator@0.6.1
+  * deps: content-type@~1.0.2
+    - perf: enable strict mode
+  * deps: cookie@0.3.1
+    - Add `sameSite` option
+    - Fix cookie `Max-Age` to never be a floating point number
+    - Improve error message when `encode` is not a function
+    - Improve error message when `expires` is not a `Date`
+    - Throw better error for invalid argument to parse
+    - Throw on invalid values provided to `serialize`
+    - perf: enable strict mode
+    - perf: hoist regular expression
+    - perf: use for loop in parse
+    - perf: use string concatenation for serialization
+  * deps: finalhandler@0.5.0
+    - Change invalid or non-numeric status code to 500
+    - Overwrite status message to match set status code
+    - Prefer `err.statusCode` if `err.status` is invalid
+    - Set response headers from `err.headers` object
+    - Use `statuses` instead of `http` module for status messages
+  * deps: proxy-addr@~1.1.2
+    - Fix accepting various invalid netmasks
+    - Fix IPv6-mapped IPv4 validation edge cases
+    - IPv4 netmasks must be contiguous
+    - IPv6 addresses cannot be used as a netmask
+    - deps: ipaddr.js@1.1.1
+  * deps: qs@6.2.0
+    - Add `decoder` option in `parse` function
+  * deps: range-parser@~1.2.0
+    - Add `combine` option to combine overlapping ranges
+    - Fix incorrectly returning -1 when there is at least one valid range
+    - perf: remove internal function
+  * deps: send@0.14.1
+    - Add `acceptRanges` option
+    - Add `cacheControl` option
+    - Attempt to combine multiple ranges into single range
+    - Correctly inherit from `Stream` class
+    - Fix `Content-Range` header in 416 responses when using `start`/`end` options
+    - Fix `Content-Range` header missing from default 416 responses
+    - Fix redirect error when `path` contains raw non-URL characters
+    - Fix redirect when `path` starts with multiple forward slashes
+    - Ignore non-byte `Range` headers
+    - deps: http-errors@~1.5.0
+    - deps: range-parser@~1.2.0
+    - deps: statuses@~1.3.0
+    - perf: remove argument reassignment
+  * deps: serve-static@~1.11.1
+    - Add `acceptRanges` option
+    - Add `cacheControl` option
+    - Attempt to combine multiple ranges into single range
+    - Fix redirect error when `req.url` contains raw non-URL characters
+    - Ignore non-byte `Range` headers
+    - Use status code 301 for redirects
+    - deps: send@0.14.1
+  * deps: type-is@~1.6.13
+    - Fix type error when given invalid type to match against
+    - deps: mime-types@~2.1.11
+  * deps: vary@~1.1.0
+    - Only accept valid field names in the `field` argument
+  * perf: use strict equality when possible
+
+4.13.4 / 2016-01-21
+===================
+
+  * deps: content-disposition@0.5.1
+    - perf: enable strict mode
+  * deps: cookie@0.1.5
+    - Throw on invalid values provided to `serialize`
+  * deps: depd@~1.1.0
+    - Support web browser loading
+    - perf: enable strict mode
+  * deps: escape-html@~1.0.3
+    - perf: enable strict mode
+    - perf: optimize string replacement
+    - perf: use faster string coercion
+  * deps: finalhandler@0.4.1
+    - deps: escape-html@~1.0.3
+  * deps: merge-descriptors@1.0.1
+    - perf: enable strict mode
+  * deps: methods@~1.1.2
+    - perf: enable strict mode
+  * deps: parseurl@~1.3.1
+    - perf: enable strict mode
+  * deps: proxy-addr@~1.0.10
+    - deps: ipaddr.js@1.0.5
+    - perf: enable strict mode
+  * deps: range-parser@~1.0.3
+    - perf: enable strict mode
+  * deps: send@0.13.1
+    - deps: depd@~1.1.0
+    - deps: destroy@~1.0.4
+    - deps: escape-html@~1.0.3
+    - deps: range-parser@~1.0.3
+  * deps: serve-static@~1.10.2
+    - deps: escape-html@~1.0.3
+    - deps: parseurl@~1.3.0
+    - deps: send@0.13.1
+
+4.13.3 / 2015-08-02
+===================
+
+  * Fix infinite loop condition using `mergeParams: true`
+  * Fix inner numeric indices incorrectly altering parent `req.params`
+
+4.13.2 / 2015-07-31
+===================
+
+  * deps: accepts@~1.2.12
+    - deps: mime-types@~2.1.4
+  * deps: array-flatten@1.1.1
+    - perf: enable strict mode
+  * deps: path-to-regexp@0.1.7
+    - Fix regression with escaped round brackets and matching groups
+  * deps: type-is@~1.6.6
+    - deps: mime-types@~2.1.4
+
+4.13.1 / 2015-07-05
+===================
+
+  * deps: accepts@~1.2.10
+    - deps: mime-types@~2.1.2
+  * deps: qs@4.0.0
+    - Fix dropping parameters like `hasOwnProperty`
+    - Fix various parsing edge cases
+  * deps: type-is@~1.6.4
+    - deps: mime-types@~2.1.2
+    - perf: enable strict mode
+    - perf: remove argument reassignment
+
+4.13.0 / 2015-06-20
+===================
+
+  * Add settings to debug output
+  * Fix `res.format` error when only `default` provided
+  * Fix issue where `next('route')` in `app.param` would incorrectly skip values
+  * Fix hiding platform issues with `decodeURIComponent`
+    - Only `URIError`s are a 400
+  * Fix using `*` before params in routes
+  * Fix using capture groups before params in routes
+  * Simplify `res.cookie` to call `res.append`
+  * Use `array-flatten` module for flattening arrays
+  * deps: accepts@~1.2.9
+    - deps: mime-types@~2.1.1
+    - perf: avoid argument reassignment & argument slice
+    - perf: avoid negotiator recursive construction
+    - perf: enable strict mode
+    - perf: remove unnecessary bitwise operator
+  * deps: cookie@0.1.3
+    - perf: deduce the scope of try-catch deopt
+    - perf: remove argument reassignments
+  * deps: escape-html@1.0.2
+  * deps: etag@~1.7.0
+    - Always include entity length in ETags for hash length extensions
+    - Generate non-Stats ETags using MD5 only (no longer CRC32)
+    - Improve stat performance by removing hashing
+    - Improve support for JXcore
+    - Remove base64 padding in ETags to shorten
+    - Support "fake" stats objects in environments without fs
+    - Use MD5 instead of MD4 in weak ETags over 1KB
+  * deps: finalhandler@0.4.0
+    - Fix a false-positive when unpiping in Node.js 0.8
+    - Support `statusCode` property on `Error` objects
+    - Use `unpipe` module for unpiping requests
+    - deps: escape-html@1.0.2
+    - deps: on-finished@~2.3.0
+    - perf: enable strict mode
+    - perf: remove argument reassignment
+  * deps: fresh@0.3.0
+    - Add weak `ETag` matching support
+  * deps: on-finished@~2.3.0
+    - Add defined behavior for HTTP `CONNECT` requests
+    - Add defined behavior for HTTP `Upgrade` requests
+    - deps: ee-first@1.1.1
+  * deps: path-to-regexp@0.1.6
+  * deps: send@0.13.0
+    - Allow Node.js HTTP server to set `Date` response header
+    - Fix incorrectly removing `Content-Location` on 304 response
+    - Improve the default redirect response headers
+    - Send appropriate headers on default error response
+    - Use `http-errors` for standard emitted errors
+    - Use `statuses` instead of `http` module for status messages
+    - deps: escape-html@1.0.2
+    - deps: etag@~1.7.0
+    - deps: fresh@0.3.0
+    - deps: on-finished@~2.3.0
+    - perf: enable strict mode
+    - perf: remove unnecessary array allocations
+  * deps: serve-static@~1.10.0
+    - Add `fallthrough` option
+    - Fix reading options from options prototype
+    - Improve the default redirect response headers
+    - Malformed URLs now `next()` instead of 400
+    - deps: escape-html@1.0.2
+    - deps: send@0.13.0
+    - perf: enable strict mode
+    - perf: remove argument reassignment
+  * deps: type-is@~1.6.3
+    - deps: mime-types@~2.1.1
+    - perf: reduce try block size
+    - perf: remove bitwise operations
+  * perf: enable strict mode
+  * perf: isolate `app.render` try block
+  * perf: remove argument reassignments in application
+  * perf: remove argument reassignments in request prototype
+  * perf: remove argument reassignments in response prototype
+  * perf: remove argument reassignments in routing
+  * perf: remove argument reassignments in `View`
+  * perf: skip attempting to decode zero length string
+  * perf: use saved reference to `http.STATUS_CODES`
+
+4.12.4 / 2015-05-17
+===================
+
+  * deps: accepts@~1.2.7
+    - deps: mime-types@~2.0.11
+    - deps: negotiator@0.5.3
+  * deps: debug@~2.2.0
+    - deps: ms@0.7.1
+  * deps: depd@~1.0.1
+  * deps: etag@~1.6.0
+    - Improve support for JXcore
+    - Support "fake" stats objects in environments without `fs`
+  * deps: finalhandler@0.3.6
+    - deps: debug@~2.2.0
+    - deps: on-finished@~2.2.1
+  * deps: on-finished@~2.2.1
+    - Fix `isFinished(req)` when data buffered
+  * deps: proxy-addr@~1.0.8
+    - deps: ipaddr.js@1.0.1
+  * deps: qs@2.4.2
+   - Fix allowing parameters like `constructor`
+  * deps: send@0.12.3
+    - deps: debug@~2.2.0
+    - deps: depd@~1.0.1
+    - deps: etag@~1.6.0
+    - deps: ms@0.7.1
+    - deps: on-finished@~2.2.1
+  * deps: serve-static@~1.9.3
+    - deps: send@0.12.3
+  * deps: type-is@~1.6.2
+    - deps: mime-types@~2.0.11
+
+4.12.3 / 2015-03-17
+===================
+
+  * deps: accepts@~1.2.5
+    - deps: mime-types@~2.0.10
+  * deps: debug@~2.1.3
+    - Fix high intensity foreground color for bold
+    - deps: ms@0.7.0
+  * deps: finalhandler@0.3.4
+    - deps: debug@~2.1.3
+  * deps: proxy-addr@~1.0.7
+    - deps: ipaddr.js@0.1.9
+  * deps: qs@2.4.1
+    - Fix error when parameter `hasOwnProperty` is present
+  * deps: send@0.12.2
+    - Throw errors early for invalid `extensions` or `index` options
+    - deps: debug@~2.1.3
+  * deps: serve-static@~1.9.2
+    - deps: send@0.12.2
+  * deps: type-is@~1.6.1
+    - deps: mime-types@~2.0.10
+
+4.12.2 / 2015-03-02
+===================
+
+  * Fix regression where `"Request aborted"` is logged using `res.sendFile`
+
+4.12.1 / 2015-03-01
+===================
+
+  * Fix constructing application with non-configurable prototype properties
+  * Fix `ECONNRESET` errors from `res.sendFile` usage
+  * Fix `req.host` when using "trust proxy" hops count
+  * Fix `req.protocol`/`req.secure` when using "trust proxy" hops count
+  * Fix wrong `code` on aborted connections from `res.sendFile`
+  * deps: merge-descriptors@1.0.0
+
+4.12.0 / 2015-02-23
+===================
+
+  * Fix `"trust proxy"` setting to inherit when app is mounted
+  * Generate `ETag`s for all request responses
+    - No longer restricted to only responses for `GET` and `HEAD` requests
+  * Use `content-type` to parse `Content-Type` headers
+  * deps: accepts@~1.2.4
+    - Fix preference sorting to be stable for long acceptable lists
+    - deps: mime-types@~2.0.9
+    - deps: negotiator@0.5.1
+  * deps: cookie-signature@1.0.6
+  * deps: send@0.12.1
+    - Always read the stat size from the file
+    - Fix mutating passed-in `options`
+    - deps: mime@1.3.4
+  * deps: serve-static@~1.9.1
+    - deps: send@0.12.1
+  * deps: type-is@~1.6.0
+    - fix argument reassignment
+    - fix false-positives in `hasBody` `Transfer-Encoding` check
+    - support wildcard for both type and subtype (`*/*`)
+    - deps: mime-types@~2.0.9
+
+4.11.2 / 2015-02-01
+===================
+
+  * Fix `res.redirect` double-calling `res.end` for `HEAD` requests
+  * deps: accepts@~1.2.3
+    - deps: mime-types@~2.0.8
+  * deps: proxy-addr@~1.0.6
+    - deps: ipaddr.js@0.1.8
+  * deps: type-is@~1.5.6
+    - deps: mime-types@~2.0.8
+
+4.11.1 / 2015-01-20
+===================
+
+  * deps: send@0.11.1
+    - Fix root path disclosure
+  * deps: serve-static@~1.8.1
+    - Fix redirect loop in Node.js 0.11.14
+    - Fix root path disclosure
+    - deps: send@0.11.1
+
+4.11.0 / 2015-01-13
+===================
+
+  * Add `res.append(field, val)` to append headers
+  * Deprecate leading `:` in `name` for `app.param(name, fn)`
+  * Deprecate `req.param()` -- use `req.params`, `req.body`, or `req.query` instead
+  * Deprecate `app.param(fn)`
+  * Fix `OPTIONS` responses to include the `HEAD` method properly
+  * Fix `res.sendFile` not always detecting aborted connection
+  * Match routes iteratively to prevent stack overflows
+  * deps: accepts@~1.2.2
+    - deps: mime-types@~2.0.7
+    - deps: negotiator@0.5.0
+  * deps: send@0.11.0
+    - deps: debug@~2.1.1
+    - deps: etag@~1.5.1
+    - deps: ms@0.7.0
+    - deps: on-finished@~2.2.0
+  * deps: serve-static@~1.8.0
+    - deps: send@0.11.0
+
+4.10.8 / 2015-01-13
+===================
+
+  * Fix crash from error within `OPTIONS` response handler
+  * deps: proxy-addr@~1.0.5
+    - deps: ipaddr.js@0.1.6
+
+4.10.7 / 2015-01-04
+===================
+
+  * Fix `Allow` header for `OPTIONS` to not contain duplicate methods
+  * Fix incorrect "Request aborted" for `res.sendFile` when `HEAD` or 304
+  * deps: debug@~2.1.1
+  * deps: finalhandler@0.3.3
+    - deps: debug@~2.1.1
+    - deps: on-finished@~2.2.0
+  * deps: methods@~1.1.1
+  * deps: on-finished@~2.2.0
+  * deps: serve-static@~1.7.2
+    - Fix potential open redirect when mounted at root
+  * deps: type-is@~1.5.5
+    - deps: mime-types@~2.0.7
+
+4.10.6 / 2014-12-12
+===================
+
+  * Fix exception in `req.fresh`/`req.stale` without response headers
+
+4.10.5 / 2014-12-10
+===================
+
+  * Fix `res.send` double-calling `res.end` for `HEAD` requests
+  * deps: accepts@~1.1.4
+    - deps: mime-types@~2.0.4
+  * deps: type-is@~1.5.4
+    - deps: mime-types@~2.0.4
+
+4.10.4 / 2014-11-24
+===================
+
+  * Fix `res.sendfile` logging standard write errors
+
+4.10.3 / 2014-11-23
+===================
+
+  * Fix `res.sendFile` logging standard write errors
+  * deps: etag@~1.5.1
+  * deps: proxy-addr@~1.0.4
+    - deps: ipaddr.js@0.1.5
+  * deps: qs@2.3.3
+    - Fix `arrayLimit` behavior
+
+4.10.2 / 2014-11-09
+===================
+
+  * Correctly invoke async router callback asynchronously
+  * deps: accepts@~1.1.3
+    - deps: mime-types@~2.0.3
+  * deps: type-is@~1.5.3
+    - deps: mime-types@~2.0.3
+
+4.10.1 / 2014-10-28
+===================
+
+  * Fix handling of URLs containing `://` in the path
+  * deps: qs@2.3.2
+    - Fix parsing of mixed objects and values
+
+4.10.0 / 2014-10-23
+===================
+
+  * Add support for `app.set('views', array)`
+    - Views are looked up in sequence in array of directories
+  * Fix `res.send(status)` to mention `res.sendStatus(status)`
+  * Fix handling of invalid empty URLs
+  * Use `content-disposition` module for `res.attachment`/`res.download`
+    - Sends standards-compliant `Content-Disposition` header
+    - Full Unicode support
+  * Use `path.resolve` in view lookup
+  * deps: debug@~2.1.0
+    - Implement `DEBUG_FD` env variable support
+  * deps: depd@~1.0.0
+  * deps: etag@~1.5.0
+    - Improve string performance
+    - Slightly improve speed for weak ETags over 1KB
+  * deps: finalhandler@0.3.2
+    - Terminate in progress response only on error
+    - Use `on-finished` to determine request status
+    - deps: debug@~2.1.0
+    - deps: on-finished@~2.1.1
+  * deps: on-finished@~2.1.1
+    - Fix handling of pipelined requests
+  * deps: qs@2.3.0
+    - Fix parsing of mixed implicit and explicit arrays
+  * deps: send@0.10.1
+    - deps: debug@~2.1.0
+    - deps: depd@~1.0.0
+    - deps: etag@~1.5.0
+    - deps: on-finished@~2.1.1
+  * deps: serve-static@~1.7.1
+    - deps: send@0.10.1
+
+4.9.8 / 2014-10-17
+==================
+
+  * Fix `res.redirect` body when redirect status specified
+  * deps: accepts@~1.1.2
+    - Fix error when media type has invalid parameter
+    - deps: negotiator@0.4.9
+
+4.9.7 / 2014-10-10
+==================
+
+  * Fix using same param name in array of paths
+
+4.9.6 / 2014-10-08
+==================
+
+  * deps: accepts@~1.1.1
+    - deps: mime-types@~2.0.2
+    - deps: negotiator@0.4.8
+  * deps: serve-static@~1.6.4
+    - Fix redirect loop when index file serving disabled
+  * deps: type-is@~1.5.2
+    - deps: mime-types@~2.0.2
+
+4.9.5 / 2014-09-24
+==================
+
+  * deps: etag@~1.4.0
+  * deps: proxy-addr@~1.0.3
+    - Use `forwarded` npm module
+  * deps: send@0.9.3
+    - deps: etag@~1.4.0
+  * deps: serve-static@~1.6.3
+    - deps: send@0.9.3
+
+4.9.4 / 2014-09-19
+==================
+
+  * deps: qs@2.2.4
+    - Fix issue with object keys starting with numbers truncated
+
+4.9.3 / 2014-09-18
+==================
+
+  * deps: proxy-addr@~1.0.2
+    - Fix a global leak when multiple subnets are trusted
+    - deps: ipaddr.js@0.1.3
+
+4.9.2 / 2014-09-17
+==================
+
+  * Fix regression for empty string `path` in `app.use`
+  * Fix `router.use` to accept array of middleware without path
+  * Improve error message for bad `app.use` arguments
+
+4.9.1 / 2014-09-16
+==================
+
+  * Fix `app.use` to accept array of middleware without path
+  * deps: depd@0.4.5
+  * deps: etag@~1.3.1
+  * deps: send@0.9.2
+    - deps: depd@0.4.5
+    - deps: etag@~1.3.1
+    - deps: range-parser@~1.0.2
+  * deps: serve-static@~1.6.2
+    - deps: send@0.9.2
+
+4.9.0 / 2014-09-08
+==================
+
+  * Add `res.sendStatus`
+  * Invoke callback for sendfile when client aborts
+    - Applies to `res.sendFile`, `res.sendfile`, and `res.download`
+    - `err` will be populated with request aborted error
+  * Support IP address host in `req.subdomains`
+  * Use `etag` to generate `ETag` headers
+  * deps: accepts@~1.1.0
+    - update `mime-types`
+  * deps: cookie-signature@1.0.5
+  * deps: debug@~2.0.0
+  * deps: finalhandler@0.2.0
+    - Set `X-Content-Type-Options: nosniff` header
+    - deps: debug@~2.0.0
+  * deps: fresh@0.2.4
+  * deps: media-typer@0.3.0
+    - Throw error when parameter format invalid on parse
+  * deps: qs@2.2.3
+    - Fix issue where first empty value in array is discarded
+  * deps: range-parser@~1.0.2
+  * deps: send@0.9.1
+    - Add `lastModified` option
+    - Use `etag` to generate `ETag` header
+    - deps: debug@~2.0.0
+    - deps: fresh@0.2.4
+  * deps: serve-static@~1.6.1
+    - Add `lastModified` option
+    - deps: send@0.9.1
+  * deps: type-is@~1.5.1
+    - fix `hasbody` to be true for `content-length: 0`
+    - deps: media-typer@0.3.0
+    - deps: mime-types@~2.0.1
+  * deps: vary@~1.0.0
+    - Accept valid `Vary` header string as `field`
+
+4.8.8 / 2014-09-04
+==================
+
+  * deps: send@0.8.5
+    - Fix a path traversal issue when using `root`
+    - Fix malicious path detection for empty string path
+  * deps: serve-static@~1.5.4
+    - deps: send@0.8.5
+
+4.8.7 / 2014-08-29
+==================
+
+  * deps: qs@2.2.2
+    - Remove unnecessary cloning
+
+4.8.6 / 2014-08-27
+==================
+
+  * deps: qs@2.2.0
+    - Array parsing fix
+    - Performance improvements
+
+4.8.5 / 2014-08-18
+==================
+
+  * deps: send@0.8.3
+    - deps: destroy@1.0.3
+    - deps: on-finished@2.1.0
+  * deps: serve-static@~1.5.3
+    - deps: send@0.8.3
+
+4.8.4 / 2014-08-14
+==================
+
+  * deps: qs@1.2.2
+  * deps: send@0.8.2
+    - Work around `fd` leak in Node.js 0.10 for `fs.ReadStream`
+  * deps: serve-static@~1.5.2
+    - deps: send@0.8.2
+
+4.8.3 / 2014-08-10
+==================
+
+  * deps: parseurl@~1.3.0
+  * deps: qs@1.2.1
+  * deps: serve-static@~1.5.1
+    - Fix parsing of weird `req.originalUrl` values
+    - deps: parseurl@~1.3.0
+    - deps: utils-merge@1.0.0
+
+4.8.2 / 2014-08-07
+==================
+
+  * deps: qs@1.2.0
+    - Fix parsing array of objects
+
+4.8.1 / 2014-08-06
+==================
+
+  * fix incorrect deprecation warnings on `res.download`
+  * deps: qs@1.1.0
+    - Accept urlencoded square brackets
+    - Accept empty values in implicit array notation
+
+4.8.0 / 2014-08-05
+==================
+
+  * add `res.sendFile`
+    - accepts a file system path instead of a URL
+    - requires an absolute path or `root` option specified
+  * deprecate `res.sendfile` -- use `res.sendFile` instead
+  * support mounted app as any argument to `app.use()`
+  * deps: qs@1.0.2
+    - Complete rewrite
+    - Limits array length to 20
+    - Limits object depth to 5
+    - Limits parameters to 1,000
+  * deps: send@0.8.1
+    - Add `extensions` option
+  * deps: serve-static@~1.5.0
+    - Add `extensions` option
+    - deps: send@0.8.1
+
+4.7.4 / 2014-08-04
+==================
+
+  * fix `res.sendfile` regression for serving directory index files
+  * deps: send@0.7.4
+    - Fix incorrect 403 on Windows and Node.js 0.11
+    - Fix serving index files without root dir
+  * deps: serve-static@~1.4.4
+    - deps: send@0.7.4
+
+4.7.3 / 2014-08-04
+==================
+
+  * deps: send@0.7.3
+    - Fix incorrect 403 on Windows and Node.js 0.11
+  * deps: serve-static@~1.4.3
+    - Fix incorrect 403 on Windows and Node.js 0.11
+    - deps: send@0.7.3
+
+4.7.2 / 2014-07-27
+==================
+
+  * deps: depd@0.4.4
+    - Work-around v8 generating empty stack traces
+  * deps: send@0.7.2
+    - deps: depd@0.4.4
+  * deps: serve-static@~1.4.2
+
+4.7.1 / 2014-07-26
+==================
+
+  * deps: depd@0.4.3
+    - Fix exception when global `Error.stackTraceLimit` is too low
+  * deps: send@0.7.1
+    - deps: depd@0.4.3
+  * deps: serve-static@~1.4.1
+
+4.7.0 / 2014-07-25
+==================
+
+  * fix `req.protocol` for proxy-direct connections
+  * configurable query parser with `app.set('query parser', parser)`
+    - `app.set('query parser', 'extended')` parse with "qs" module
+    - `app.set('query parser', 'simple')` parse with "querystring" core module
+    - `app.set('query parser', false)` disable query string parsing
+    - `app.set('query parser', true)` enable simple parsing
+  * deprecate `res.json(status, obj)` -- use `res.status(status).json(obj)` instead
+  * deprecate `res.jsonp(status, obj)` -- use `res.status(status).jsonp(obj)` instead
+  * deprecate `res.send(status, body)` -- use `res.status(status).send(body)` instead
+  * deps: debug@1.0.4
+  * deps: depd@0.4.2
+    - Add `TRACE_DEPRECATION` environment variable
+    - Remove non-standard grey color from color output
+    - Support `--no-deprecation` argument
+    - Support `--trace-deprecation` argument
+  * deps: finalhandler@0.1.0
+    - Respond after request fully read
+    - deps: debug@1.0.4
+  * deps: parseurl@~1.2.0
+    - Cache URLs based on original value
+    - Remove no-longer-needed URL mis-parse work-around
+    - Simplify the "fast-path" `RegExp`
+  * deps: send@0.7.0
+    - Add `dotfiles` option
+    - Cap `maxAge` value to 1 year
+    - deps: debug@1.0.4
+    - deps: depd@0.4.2
+  * deps: serve-static@~1.4.0
+    - deps: parseurl@~1.2.0
+    - deps: send@0.7.0
+  * perf: prevent multiple `Buffer` creation in `res.send`
+
+4.6.1 / 2014-07-12
+==================
+
+  * fix `subapp.mountpath` regression for `app.use(subapp)`
+
+4.6.0 / 2014-07-11
+==================
+
+  * accept multiple callbacks to `app.use()`
+  * add explicit "Rosetta Flash JSONP abuse" protection
+    - previous versions are not vulnerable; this is just explicit protection
+  * catch errors in multiple `req.param(name, fn)` handlers
+  * deprecate `res.redirect(url, status)` -- use `res.redirect(status, url)` instead
+  * fix `res.send(status, num)` to send `num` as json (not error)
+  * remove unnecessary escaping when `res.jsonp` returns JSON response
+  * support non-string `path` in `app.use(path, fn)`
+    - supports array of paths
+    - supports `RegExp`
+  * router: fix optimization on router exit
+  * router: refactor location of `try` blocks
+  * router: speed up standard `app.use(fn)`
+  * deps: debug@1.0.3
+    - Add support for multiple wildcards in namespaces
+  * deps: finalhandler@0.0.3
+    - deps: debug@1.0.3
+  * deps: methods@1.1.0
+    - add `CONNECT`
+  * deps: parseurl@~1.1.3
+    - faster parsing of href-only URLs
+  * deps: path-to-regexp@0.1.3
+  * deps: send@0.6.0
+    - deps: debug@1.0.3
+  * deps: serve-static@~1.3.2
+    - deps: parseurl@~1.1.3
+    - deps: send@0.6.0
+  * perf: fix arguments reassign deopt in some `res` methods
+
+4.5.1 / 2014-07-06
+==================
+
+ * fix routing regression when altering `req.method`
+
+4.5.0 / 2014-07-04
+==================
+
+ * add deprecation message to non-plural `req.accepts*`
+ * add deprecation message to `res.send(body, status)`
+ * add deprecation message to `res.vary()`
+ * add `headers` option to `res.sendfile`
+   - use to set headers on successful file transfer
+ * add `mergeParams` option to `Router`
+   - merges `req.params` from parent routes
+ * add `req.hostname` -- correct name for what `req.host` returns
+ * deprecate things with `depd` module
+ * deprecate `req.host` -- use `req.hostname` instead
+ * fix behavior when handling request without routes
+ * fix handling when `route.all` is only route
+ * invoke `router.param()` only when route matches
+ * restore `req.params` after invoking router
+ * use `finalhandler` for final response handling
+ * use `media-typer` to alter content-type charset
+ * deps: accepts@~1.0.7
+ * deps: send@0.5.0
+   - Accept string for `maxage` (converted by `ms`)
+   - Include link in default redirect response
+ * deps: serve-static@~1.3.0
+   - Accept string for `maxAge` (converted by `ms`)
+   - Add `setHeaders` option
+   - Include HTML link in redirect response
+   - deps: send@0.5.0
+ * deps: type-is@~1.3.2
+
+4.4.5 / 2014-06-26
+==================
+
+ * deps: cookie-signature@1.0.4
+   - fix for timing attacks
+
+4.4.4 / 2014-06-20
+==================
+
+ * fix `res.attachment` Unicode filenames in Safari
+ * fix "trim prefix" debug message in `express:router`
+ * deps: accepts@~1.0.5
+ * deps: buffer-crc32@0.2.3
+
+4.4.3 / 2014-06-11
+==================
+
+ * fix persistence of modified `req.params[name]` from `app.param()`
+ * deps: accepts@1.0.3
+   - deps: negotiator@0.4.6
+ * deps: debug@1.0.2
+ * deps: send@0.4.3
+   - Do not throw uncatchable error on file open race condition
+   - Use `escape-html` for HTML escaping
+   - deps: debug@1.0.2
+   - deps: finished@1.2.2
+   - deps: fresh@0.2.2
+ * deps: serve-static@1.2.3
+   - Do not throw uncatchable error on file open race condition
+   - deps: send@0.4.3
+
+4.4.2 / 2014-06-09
+==================
+
+ * fix catching errors from top-level handlers
+ * use `vary` module for `res.vary`
+ * deps: debug@1.0.1
+ * deps: proxy-addr@1.0.1
+ * deps: send@0.4.2
+   - fix "event emitter leak" warnings
+   - deps: debug@1.0.1
+   - deps: finished@1.2.1
+ * deps: serve-static@1.2.2
+   - fix "event emitter leak" warnings
+   - deps: send@0.4.2
+ * deps: type-is@1.2.1
+
+4.4.1 / 2014-06-02
+==================
+
+ * deps: methods@1.0.1
+ * deps: send@0.4.1
+   - Send `max-age` in `Cache-Control` in correct format
+ * deps: serve-static@1.2.1
+   - use `escape-html` for escaping
+   - deps: send@0.4.1
+
+4.4.0 / 2014-05-30
+==================
+
+ * custom etag control with `app.set('etag', val)`
+   - `app.set('etag', function(body, encoding){ return '"etag"' })` custom etag generation
+   - `app.set('etag', 'weak')` weak tag
+   - `app.set('etag', 'strong')` strong etag
+   - `app.set('etag', false)` turn off
+   - `app.set('etag', true)` standard etag
+ * mark `res.send` ETag as weak and reduce collisions
+ * update accepts to 1.0.2
+   - Fix interpretation when header not in request
+ * update send to 0.4.0
+   - Calculate ETag with md5 for reduced collisions
+   - Ignore stream errors after request ends
+   - deps: debug@0.8.1
+ * update serve-static to 1.2.0
+   - Calculate ETag with md5 for reduced collisions
+   - Ignore stream errors after request ends
+   - deps: send@0.4.0
+
+4.3.2 / 2014-05-28
+==================
+
+ * fix handling of errors from `router.param()` callbacks
+
+4.3.1 / 2014-05-23
+==================
+
+ * revert "fix behavior of multiple `app.VERB` for the same path"
+   - this caused a regression in the order of route execution
+
+4.3.0 / 2014-05-21
+==================
+
+ * add `req.baseUrl` to access the path stripped from `req.url` in routes
+ * fix behavior of multiple `app.VERB` for the same path
+ * fix issue routing requests among sub routers
+ * invoke `router.param()` only when necessary instead of every match
+ * proper proxy trust with `app.set('trust proxy', trust)`
+   - `app.set('trust proxy', 1)` trust first hop
+   - `app.set('trust proxy', 'loopback')` trust loopback addresses
+   - `app.set('trust proxy', '10.0.0.1')` trust single IP
+   - `app.set('trust proxy', '10.0.0.1/16')` trust subnet
+   - `app.set('trust proxy', '10.0.0.1, 10.0.0.2')` trust list
+   - `app.set('trust proxy', false)` turn off
+   - `app.set('trust proxy', true)` trust everything
+ * set proper `charset` in `Content-Type` for `res.send`
+ * update type-is to 1.2.0
+   - support suffix matching
+
+4.2.0 / 2014-05-11
+==================
+
+ * deprecate `app.del()` -- use `app.delete()` instead
+ * deprecate `res.json(obj, status)` -- use `res.json(status, obj)` instead
+   - the edge-case `res.json(status, num)` requires `res.status(status).json(num)`
+ * deprecate `res.jsonp(obj, status)` -- use `res.jsonp(status, obj)` instead
+   - the edge-case `res.jsonp(status, num)` requires `res.status(status).jsonp(num)`
+ * fix `req.next` when inside router instance
+ * include `ETag` header in `HEAD` requests
+ * keep previous `Content-Type` for `res.jsonp`
+ * support PURGE method
+   - add `app.purge`
+   - add `router.purge`
+   - include PURGE in `app.all`
+ * update debug to 0.8.0
+   - add `enable()` method
+   - change from stderr to stdout
+ * update methods to 1.0.0
+   - add PURGE
+
+4.1.2 / 2014-05-08
+==================
+
+ * fix `req.host` for IPv6 literals
+ * fix `res.jsonp` error if callback param is object
+
+4.1.1 / 2014-04-27
+==================
+
+ * fix package.json to reflect supported node version
+
+4.1.0 / 2014-04-24
+==================
+
+ * pass options from `res.sendfile` to `send`
+ * preserve casing of headers in `res.header` and `res.set`
+ * support unicode file names in `res.attachment` and `res.download`
+ * update accepts to 1.0.1
+   - deps: negotiator@0.4.0
+ * update cookie to 0.1.2
+   - Fix for maxAge == 0
+   - made compat with expires field
+ * update send to 0.3.0
+   - Accept API options in options object
+   - Coerce option types
+   - Control whether to generate etags
+   - Default directory access to 403 when index disabled
+   - Fix sending files with dots without root set
+   - Include file path in etag
+   - Make "Can't set headers after they are sent." catchable
+   - Send full entity-body for multi range requests
+   - Set etags to "weak"
+   - Support "If-Range" header
+   - Support multiple index paths
+   - deps: mime@1.2.11
+ * update serve-static to 1.1.0
+   - Accept options directly to `send` module
+   - Resolve relative paths at middleware setup
+   - Use parseurl to parse the URL from request
+   - deps: send@0.3.0
+ * update type-is to 1.1.0
+   - add non-array values support
+   - add `multipart` as a shorthand
+
+4.0.0 / 2014-04-09
+==================
+
+ * remove:
+   - node 0.8 support
+   - connect and connect's patches except for charset handling
+   - express(1) - moved to [express-generator](https://github.com/expressjs/generator)
+   - `express.createServer()` - it has been deprecated for a long time. Use `express()`
+   - `app.configure` - use logic in your own app code
+   - `app.router` - is removed
+   - `req.auth` - use `basic-auth` instead
+   - `req.accepted*` - use `req.accepts*()` instead
+   - `res.location` - relative URL resolution is removed
+   - `res.charset` - include the charset in the content type when using `res.set()`
+   - all bundled middleware except `static`
+ * change:
+   - `app.route` -> `app.mountpath` when mounting an express app in another express app
+   - `json spaces` no longer enabled by default in development
+   - `req.accepts*` -> `req.accepts*s` - i.e. `req.acceptsEncoding` -> `req.acceptsEncodings`
+   - `req.params` is now an object instead of an array
+   - `res.locals` is no longer a function. It is a plain js object. Treat it as such.
+   - `res.headerSent` -> `res.headersSent` to match node.js ServerResponse object
+ * refactor:
+   - `req.accepts*` with [accepts](https://github.com/expressjs/accepts)
+   - `req.is` with [type-is](https://github.com/expressjs/type-is)
+   - [path-to-regexp](https://github.com/component/path-to-regexp)
+ * add:
+   - `app.router()` - returns the app Router instance
+   - `app.route()` - Proxy to the app's `Router#route()` method to create a new route
+   - Router & Route - public API
+
+3.21.2 / 2015-07-31
+===================
+
+  * deps: connect@2.30.2
+    - deps: body-parser@~1.13.3
+    - deps: compression@~1.5.2
+    - deps: errorhandler@~1.4.2
+    - deps: method-override@~2.3.5
+    - deps: serve-index@~1.7.2
+    - deps: type-is@~1.6.6
+    - deps: vhost@~3.0.1
+  * deps: vary@~1.0.1
+    - Fix setting empty header from empty `field`
+    - perf: enable strict mode
+    - perf: remove argument reassignments
+
+3.21.1 / 2015-07-05
+===================
+
+  * deps: basic-auth@~1.0.3
+  * deps: connect@2.30.1
+    - deps: body-parser@~1.13.2
+    - deps: compression@~1.5.1
+    - deps: errorhandler@~1.4.1
+    - deps: morgan@~1.6.1
+    - deps: pause@0.1.0
+    - deps: qs@4.0.0
+    - deps: serve-index@~1.7.1
+    - deps: type-is@~1.6.4
+
+3.21.0 / 2015-06-18
+===================
+
+  * deps: basic-auth@1.0.2
+    - perf: enable strict mode
+    - perf: hoist regular expression
+    - perf: parse with regular expressions
+    - perf: remove argument reassignment
+  * deps: connect@2.30.0
+    - deps: body-parser@~1.13.1
+    - deps: bytes@2.1.0
+    - deps: compression@~1.5.0
+    - deps: cookie@0.1.3
+    - deps: cookie-parser@~1.3.5
+    - deps: csurf@~1.8.3
+    - deps: errorhandler@~1.4.0
+    - deps: express-session@~1.11.3
+    - deps: finalhandler@0.4.0
+    - deps: fresh@0.3.0
+    - deps: morgan@~1.6.0
+    - deps: serve-favicon@~2.3.0
+    - deps: serve-index@~1.7.0
+    - deps: serve-static@~1.10.0
+    - deps: type-is@~1.6.3
+  * deps: cookie@0.1.3
+    - perf: deduce the scope of try-catch deopt
+    - perf: remove argument reassignments
+  * deps: escape-html@1.0.2
+  * deps: etag@~1.7.0
+    - Always include entity length in ETags for hash length extensions
+    - Generate non-Stats ETags using MD5 only (no longer CRC32)
+    - Improve stat performance by removing hashing
+    - Improve support for JXcore
+    - Remove base64 padding in ETags to shorten
+    - Support "fake" stats objects in environments without fs
+    - Use MD5 instead of MD4 in weak ETags over 1KB
+  * deps: fresh@0.3.0
+    - Add weak `ETag` matching support
+  * deps: mkdirp@0.5.1
+    - Work in global strict mode
+  * deps: send@0.13.0
+    - Allow Node.js HTTP server to set `Date` response header
+    - Fix incorrectly removing `Content-Location` on 304 response
+    - Improve the default redirect response headers
+    - Send appropriate headers on default error response
+    - Use `http-errors` for standard emitted errors
+    - Use `statuses` instead of `http` module for status messages
+    - deps: escape-html@1.0.2
+    - deps: etag@~1.7.0
+    - deps: fresh@0.3.0
+    - deps: on-finished@~2.3.0
+    - perf: enable strict mode
+    - perf: remove unnecessary array allocations
+
+3.20.3 / 2015-05-17
+===================
+
+  * deps: connect@2.29.2
+    - deps: body-parser@~1.12.4
+    - deps: compression@~1.4.4
+    - deps: connect-timeout@~1.6.2
+    - deps: debug@~2.2.0
+    - deps: depd@~1.0.1
+    - deps: errorhandler@~1.3.6
+    - deps: finalhandler@0.3.6
+    - deps: method-override@~2.3.3
+    - deps: morgan@~1.5.3
+    - deps: qs@2.4.2
+    - deps: response-time@~2.3.1
+    - deps: serve-favicon@~2.2.1
+    - deps: serve-index@~1.6.4
+    - deps: serve-static@~1.9.3
+    - deps: type-is@~1.6.2
+  * deps: debug@~2.2.0
+    - deps: ms@0.7.1
+  * deps: depd@~1.0.1
+  * deps: proxy-addr@~1.0.8
+    - deps: ipaddr.js@1.0.1
+  * deps: send@0.12.3
+    - deps: debug@~2.2.0
+    - deps: depd@~1.0.1
+    - deps: etag@~1.6.0
+    - deps: ms@0.7.1
+    - deps: on-finished@~2.2.1
+
+3.20.2 / 2015-03-16
+===================
+
+  * deps: connect@2.29.1
+    - deps: body-parser@~1.12.2
+    - deps: compression@~1.4.3
+    - deps: connect-timeout@~1.6.1
+    - deps: debug@~2.1.3
+    - deps: errorhandler@~1.3.5
+    - deps: express-session@~1.10.4
+    - deps: finalhandler@0.3.4
+    - deps: method-override@~2.3.2
+    - deps: morgan@~1.5.2
+    - deps: qs@2.4.1
+    - deps: serve-index@~1.6.3
+    - deps: serve-static@~1.9.2
+    - deps: type-is@~1.6.1
+  * deps: debug@~2.1.3
+    - Fix high intensity foreground color for bold
+    - deps: ms@0.7.0
+  * deps: merge-descriptors@1.0.0
+  * deps: proxy-addr@~1.0.7
+    - deps: ipaddr.js@0.1.9
+  * deps: send@0.12.2
+    - Throw errors early for invalid `extensions` or `index` options
+    - deps: debug@~2.1.3
+
+3.20.1 / 2015-02-28
+===================
+
+  * Fix `req.host` when using "trust proxy" hops count
+  * Fix `req.protocol`/`req.secure` when using "trust proxy" hops count
+
+3.20.0 / 2015-02-18
+===================
+
+  * Fix `"trust proxy"` setting to inherit when app is mounted
+  * Generate `ETag`s for all request responses
+    - No longer restricted to only responses for `GET` and `HEAD` requests
+  * Use `content-type` to parse `Content-Type` headers
+  * deps: connect@2.29.0
+    - Use `content-type` to parse `Content-Type` headers
+    - deps: body-parser@~1.12.0
+    - deps: compression@~1.4.1
+    - deps: connect-timeout@~1.6.0
+    - deps: cookie-parser@~1.3.4
+    - deps: cookie-signature@1.0.6
+    - deps: csurf@~1.7.0
+    - deps: errorhandler@~1.3.4
+    - deps: express-session@~1.10.3
+    - deps: http-errors@~1.3.1
+    - deps: response-time@~2.3.0
+    - deps: serve-index@~1.6.2
+    - deps: serve-static@~1.9.1
+    - deps: type-is@~1.6.0
+  * deps: cookie-signature@1.0.6
+  * deps: send@0.12.1
+    - Always read the stat size from the file
+    - Fix mutating passed-in `options`
+    - deps: mime@1.3.4
+
+3.19.2 / 2015-02-01
+===================
+
+  * deps: connect@2.28.3
+    - deps: compression@~1.3.1
+    - deps: csurf@~1.6.6
+    - deps: errorhandler@~1.3.3
+    - deps: express-session@~1.10.2
+    - deps: serve-index@~1.6.1
+    - deps: type-is@~1.5.6
+  * deps: proxy-addr@~1.0.6
+    - deps: ipaddr.js@0.1.8
+
+3.19.1 / 2015-01-20
+===================
+
+  * deps: connect@2.28.2
+    - deps: body-parser@~1.10.2
+    - deps: serve-static@~1.8.1
+  * deps: send@0.11.1
+    - Fix root path disclosure
+
+3.19.0 / 2015-01-09
+===================
+
+  * Fix `OPTIONS` responses to include the `HEAD` method property
+  * Use `readline` for prompt in `express(1)`
+  * deps: commander@2.6.0
+  * deps: connect@2.28.1
+    - deps: body-parser@~1.10.1
+    - deps: compression@~1.3.0
+    - deps: connect-timeout@~1.5.0
+    - deps: csurf@~1.6.4
+    - deps: debug@~2.1.1
+    - deps: errorhandler@~1.3.2
+    - deps: express-session@~1.10.1
+    - deps: finalhandler@0.3.3
+    - deps: method-override@~2.3.1
+    - deps: morgan@~1.5.1
+    - deps: serve-favicon@~2.2.0
+    - deps: serve-index@~1.6.0
+    - deps: serve-static@~1.8.0
+    - deps: type-is@~1.5.5
+  * deps: debug@~2.1.1
+  * deps: methods@~1.1.1
+  * deps: proxy-addr@~1.0.5
+    - deps: ipaddr.js@0.1.6
+  * deps: send@0.11.0
+    - deps: debug@~2.1.1
+    - deps: etag@~1.5.1
+    - deps: ms@0.7.0
+    - deps: on-finished@~2.2.0
+
+3.18.6 / 2014-12-12
+===================
+
+  * Fix exception in `req.fresh`/`req.stale` without response headers
+
+3.18.5 / 2014-12-11
+===================
+
+  * deps: connect@2.27.6
+    - deps: compression@~1.2.2
+    - deps: express-session@~1.9.3
+    - deps: http-errors@~1.2.8
+    - deps: serve-index@~1.5.3
+    - deps: type-is@~1.5.4
+
+3.18.4 / 2014-11-23
+===================
+
+  * deps: connect@2.27.4
+    - deps: body-parser@~1.9.3
+    - deps: compression@~1.2.1
+    - deps: errorhandler@~1.2.3
+    - deps: express-session@~1.9.2
+    - deps: qs@2.3.3
+    - deps: serve-favicon@~2.1.7
+    - deps: serve-static@~1.5.1
+    - deps: type-is@~1.5.3
+  * deps: etag@~1.5.1
+  * deps: proxy-addr@~1.0.4
+    - deps: ipaddr.js@0.1.5
+
+3.18.3 / 2014-11-09
+===================
+
+  * deps: connect@2.27.3
+    - Correctly invoke async callback asynchronously
+    - deps: csurf@~1.6.3
+
+3.18.2 / 2014-10-28
+===================
+
+  * deps: connect@2.27.2
+    - Fix handling of URLs containing `://` in the path
+    - deps: body-parser@~1.9.2
+    - deps: qs@2.3.2
+
+3.18.1 / 2014-10-22
+===================
+
+  * Fix internal `utils.merge` deprecation warnings
+  * deps: connect@2.27.1
+    - deps: body-parser@~1.9.1
+    - deps: express-session@~1.9.1
+    - deps: finalhandler@0.3.2
+    - deps: morgan@~1.4.1
+    - deps: qs@2.3.0
+    - deps: serve-static@~1.7.1
+  * deps: send@0.10.1
+    - deps: on-finished@~2.1.1
+
+3.18.0 / 2014-10-17
+===================
+
+  * Use `content-disposition` module for `res.attachment`/`res.download`
+    - Sends standards-compliant `Content-Disposition` header
+    - Full Unicode support
+  * Use `etag` module to generate `ETag` headers
+  * deps: connect@2.27.0
+    - Use `http-errors` module for creating errors
+    - Use `utils-merge` module for merging objects
+    - deps: body-parser@~1.9.0
+    - deps: compression@~1.2.0
+    - deps: connect-timeout@~1.4.0
+    - deps: debug@~2.1.0
+    - deps: depd@~1.0.0
+    - deps: express-session@~1.9.0
+    - deps: finalhandler@0.3.1
+    - deps: method-override@~2.3.0
+    - deps: morgan@~1.4.0
+    - deps: response-time@~2.2.0
+    - deps: serve-favicon@~2.1.6
+    - deps: serve-index@~1.5.0
+    - deps: serve-static@~1.7.0
+  * deps: debug@~2.1.0
+    - Implement `DEBUG_FD` env variable support
+  * deps: depd@~1.0.0
+  * deps: send@0.10.0
+    - deps: debug@~2.1.0
+    - deps: depd@~1.0.0
+    - deps: etag@~1.5.0
+
+3.17.8 / 2014-10-15
+===================
+
+  * deps: connect@2.26.6
+    - deps: compression@~1.1.2
+    - deps: csurf@~1.6.2
+    - deps: errorhandler@~1.2.2
+
+3.17.7 / 2014-10-08
+===================
+
+  * deps: connect@2.26.5
+    - Fix accepting non-object arguments to `logger`
+    - deps: serve-static@~1.6.4
+
+3.17.6 / 2014-10-02
+===================
+
+  * deps: connect@2.26.4
+    - deps: morgan@~1.3.2
+    - deps: type-is@~1.5.2
+
+3.17.5 / 2014-09-24
+===================
+
+  * deps: connect@2.26.3
+    - deps: body-parser@~1.8.4
+    - deps: serve-favicon@~2.1.5
+    - deps: serve-static@~1.6.3
+  * deps: proxy-addr@~1.0.3
+    - Use `forwarded` npm module
+  * deps: send@0.9.3
+    - deps: etag@~1.4.0
+
+3.17.4 / 2014-09-19
+===================
+
+  * deps: connect@2.26.2
+    - deps: body-parser@~1.8.3
+    - deps: qs@2.2.4
+
+3.17.3 / 2014-09-18
+===================
+
+  * deps: proxy-addr@~1.0.2
+    - Fix a global leak when multiple subnets are trusted
+    - deps: ipaddr.js@0.1.3
+
+3.17.2 / 2014-09-15
+===================
+
+  * Use `crc` instead of `buffer-crc32` for speed
+  * deps: connect@2.26.1
+    - deps: body-parser@~1.8.2
+    - deps: depd@0.4.5
+    - deps: express-session@~1.8.2
+    - deps: morgan@~1.3.1
+    - deps: serve-favicon@~2.1.3
+    - deps: serve-static@~1.6.2
+  * deps: depd@0.4.5
+  * deps: send@0.9.2
+    - deps: depd@0.4.5
+    - deps: etag@~1.3.1
+    - deps: range-parser@~1.0.2
+
+3.17.1 / 2014-09-08
+===================
+
+  * Fix error in `req.subdomains` on empty host
+
+3.17.0 / 2014-09-08
+===================
+
+  * Support `X-Forwarded-Host` in `req.subdomains`
+  * Support IP address host in `req.subdomains`
+  * deps: connect@2.26.0
+    - deps: body-parser@~1.8.1
+    - deps: compression@~1.1.0
+    - deps: connect-timeout@~1.3.0
+    - deps: cookie-parser@~1.3.3
+    - deps: cookie-signature@1.0.5
+    - deps: csurf@~1.6.1
+    - deps: debug@~2.0.0
+    - deps: errorhandler@~1.2.0
+    - deps: express-session@~1.8.1
+    - deps: finalhandler@0.2.0
+    - deps: fresh@0.2.4
+    - deps: media-typer@0.3.0
+    - deps: method-override@~2.2.0
+    - deps: morgan@~1.3.0
+    - deps: qs@2.2.3
+    - deps: serve-favicon@~2.1.3
+    - deps: serve-index@~1.2.1
+    - deps: serve-static@~1.6.1
+    - deps: type-is@~1.5.1
+    - deps: vhost@~3.0.0
+  * deps: cookie-signature@1.0.5
+  * deps: debug@~2.0.0
+  * deps: fresh@0.2.4
+  * deps: media-typer@0.3.0
+    - Throw error when parameter format invalid on parse
+  * deps: range-parser@~1.0.2
+  * deps: send@0.9.1
+    - Add `lastModified` option
+    - Use `etag` to generate `ETag` header
+    - deps: debug@~2.0.0
+    - deps: fresh@0.2.4
+  * deps: vary@~1.0.0
+    - Accept valid `Vary` header string as `field`
+
+3.16.10 / 2014-09-04
+====================
+
+  * deps: connect@2.25.10
+    - deps: serve-static@~1.5.4
+  * deps: send@0.8.5
+    - Fix a path traversal issue when using `root`
+    - Fix malicious path detection for empty string path
+
+3.16.9 / 2014-08-29
+===================
+
+  * deps: connect@2.25.9
+    - deps: body-parser@~1.6.7
+    - deps: qs@2.2.2
+
+3.16.8 / 2014-08-27
+===================
+
+  * deps: connect@2.25.8
+    - deps: body-parser@~1.6.6
+    - deps: csurf@~1.4.1
+    - deps: qs@2.2.0
+
+3.16.7 / 2014-08-18
+===================
+
+  * deps: connect@2.25.7
+    - deps: body-parser@~1.6.5
+    - deps: express-session@~1.7.6
+    - deps: morgan@~1.2.3
+    - deps: serve-static@~1.5.3
+  * deps: send@0.8.3
+    - deps: destroy@1.0.3
+    - deps: on-finished@2.1.0
+
+3.16.6 / 2014-08-14
+===================
+
+  * deps: connect@2.25.6
+    - deps: body-parser@~1.6.4
+    - deps: qs@1.2.2
+    - deps: serve-static@~1.5.2
+  * deps: send@0.8.2
+    - Work around `fd` leak in Node.js 0.10 for `fs.ReadStream`
+
+3.16.5 / 2014-08-11
+===================
+
+  * deps: connect@2.25.5
+    - Fix backwards compatibility in `logger`
+
+3.16.4 / 2014-08-10
+===================
+
+  * Fix original URL parsing in `res.location`
+  * deps: connect@2.25.4
+    - Fix `query` middleware breaking with argument
+    - deps: body-parser@~1.6.3
+    - deps: compression@~1.0.11
+    - deps: connect-timeout@~1.2.2
+    - deps: express-session@~1.7.5
+    - deps: method-override@~2.1.3
+    - deps: on-headers@~1.0.0
+    - deps: parseurl@~1.3.0
+    - deps: qs@1.2.1
+    - deps: response-time@~2.0.1
+    - deps: serve-index@~1.1.6
+    - deps: serve-static@~1.5.1
+  * deps: parseurl@~1.3.0
+
+3.16.3 / 2014-08-07
+===================
+
+  * deps: connect@2.25.3
+    - deps: multiparty@3.3.2
+
+3.16.2 / 2014-08-07
+===================
+
+  * deps: connect@2.25.2
+    - deps: body-parser@~1.6.2
+    - deps: qs@1.2.0
+
+3.16.1 / 2014-08-06
+===================
+
+  * deps: connect@2.25.1
+    - deps: body-parser@~1.6.1
+    - deps: qs@1.1.0
+
+3.16.0 / 2014-08-05
+===================
+
+  * deps: connect@2.25.0
+    - deps: body-parser@~1.6.0
+    - deps: compression@~1.0.10
+    - deps: csurf@~1.4.0
+    - deps: express-session@~1.7.4
+    - deps: qs@1.0.2
+    - deps: serve-static@~1.5.0
+  * deps: send@0.8.1
+    - Add `extensions` option
+
+3.15.3 / 2014-08-04
+===================
+
+  * fix `res.sendfile` regression for serving directory index files
+  * deps: connect@2.24.3
+    - deps: serve-index@~1.1.5
+    - deps: serve-static@~1.4.4
+  * deps: send@0.7.4
+    - Fix incorrect 403 on Windows and Node.js 0.11
+    - Fix serving index files without root dir
+
+3.15.2 / 2014-07-27
+===================
+
+  * deps: connect@2.24.2
+    - deps: body-parser@~1.5.2
+    - deps: depd@0.4.4
+    - deps: express-session@~1.7.2
+    - deps: morgan@~1.2.2
+    - deps: serve-static@~1.4.2
+  * deps: depd@0.4.4
+    - Work-around v8 generating empty stack traces
+  * deps: send@0.7.2
+    - deps: depd@0.4.4
+
+3.15.1 / 2014-07-26
+===================
+
+  * deps: connect@2.24.1
+    - deps: body-parser@~1.5.1
+    - deps: depd@0.4.3
+    - deps: express-session@~1.7.1
+    - deps: morgan@~1.2.1
+    - deps: serve-index@~1.1.4
+    - deps: serve-static@~1.4.1
+  * deps: depd@0.4.3
+    - Fix exception when global `Error.stackTraceLimit` is too low
+  * deps: send@0.7.1
+    - deps: depd@0.4.3
+
+3.15.0 / 2014-07-22
+===================
+
+  * Fix `req.protocol` for proxy-direct connections
+  * Pass options from `res.sendfile` to `send`
+  * deps: connect@2.24.0
+    - deps: body-parser@~1.5.0
+    - deps: compression@~1.0.9
+    - deps: connect-timeout@~1.2.1
+    - deps: debug@1.0.4
+    - deps: depd@0.4.2
+    - deps: express-session@~1.7.0
+    - deps: finalhandler@0.1.0
+    - deps: method-override@~2.1.2
+    - deps: morgan@~1.2.0
+    - deps: multiparty@3.3.1
+    - deps: parseurl@~1.2.0
+    - deps: serve-static@~1.4.0
+  * deps: debug@1.0.4
+  * deps: depd@0.4.2
+    - Add `TRACE_DEPRECATION` environment variable
+    - Remove non-standard grey color from color output
+    - Support `--no-deprecation` argument
+    - Support `--trace-deprecation` argument
+  * deps: parseurl@~1.2.0
+    - Cache URLs based on original value
+    - Remove no-longer-needed URL mis-parse work-around
+    - Simplify the "fast-path" `RegExp`
+  * deps: send@0.7.0
+    - Add `dotfiles` option
+    - Cap `maxAge` value to 1 year
+    - deps: debug@1.0.4
+    - deps: depd@0.4.2
+
+3.14.0 / 2014-07-11
+===================
+
+ * add explicit "Rosetta Flash JSONP abuse" protection
+   - previous versions are not vulnerable; this is just explicit protection
+ * deprecate `res.redirect(url, status)` -- use `res.redirect(status, url)` instead
+ * fix `res.send(status, num)` to send `num` as json (not error)
+ * remove unnecessary escaping when `res.jsonp` returns JSON response
+ * deps: basic-auth@1.0.0
+   - support empty password
+   - support empty username
+ * deps: connect@2.23.0
+   - deps: debug@1.0.3
+   - deps: express-session@~1.6.4
+   - deps: method-override@~2.1.0
+   - deps: parseurl@~1.1.3
+   - deps: serve-static@~1.3.1
+  * deps: debug@1.0.3
+    - Add support for multiple wildcards in namespaces
+  * deps: methods@1.1.0
+    - add `CONNECT`
+  * deps: parseurl@~1.1.3
+    - faster parsing of href-only URLs
+
+3.13.0 / 2014-07-03
+===================
+
+ * add deprecation message to `app.configure`
+ * add deprecation message to `req.auth`
+ * use `basic-auth` to parse `Authorization` header
+ * deps: connect@2.22.0
+   - deps: csurf@~1.3.0
+   - deps: express-session@~1.6.1
+   - deps: multiparty@3.3.0
+   - deps: serve-static@~1.3.0
+ * deps: send@0.5.0
+   - Accept string for `maxage` (converted by `ms`)
+   - Include link in default redirect response
+
+3.12.1 / 2014-06-26
+===================
+
+ * deps: connect@2.21.1
+   - deps: cookie-parser@1.3.2
+   - deps: cookie-signature@1.0.4
+   - deps: express-session@~1.5.2
+   - deps: type-is@~1.3.2
+ * deps: cookie-signature@1.0.4
+   - fix for timing attacks
+
+3.12.0 / 2014-06-21
+===================
+
+ * use `media-typer` to alter content-type charset
+ * deps: connect@2.21.0
+   - deprecate `connect(middleware)` -- use `app.use(middleware)` instead
+   - deprecate `connect.createServer()` -- use `connect()` instead
+   - fix `res.setHeader()` patch to work with get -> append -> set pattern
+   - deps: compression@~1.0.8
+   - deps: errorhandler@~1.1.1
+   - deps: express-session@~1.5.0
+   - deps: serve-index@~1.1.3
+
+3.11.0 / 2014-06-19
+===================
+
+ * deprecate things with `depd` module
+ * deps: buffer-crc32@0.2.3
+ * deps: connect@2.20.2
+   - deprecate `verify` option to `json` -- use `body-parser` npm module instead
+   - deprecate `verify` option to `urlencoded` -- use `body-parser` npm module instead
+   - deprecate things with `depd` module
+   - use `finalhandler` for final response handling
+   - use `media-typer` to parse `content-type` for charset
+   - deps: body-parser@1.4.3
+   - deps: connect-timeout@1.1.1
+   - deps: cookie-parser@1.3.1
+   - deps: csurf@1.2.2
+   - deps: errorhandler@1.1.0
+   - deps: express-session@1.4.0
+   - deps: multiparty@3.2.9
+   - deps: serve-index@1.1.2
+   - deps: type-is@1.3.1
+   - deps: vhost@2.0.0
+
+3.10.5 / 2014-06-11
+===================
+
+ * deps: connect@2.19.6
+   - deps: body-parser@1.3.1
+   - deps: compression@1.0.7
+   - deps: debug@1.0.2
+   - deps: serve-index@1.1.1
+   - deps: serve-static@1.2.3
+ * deps: debug@1.0.2
+ * deps: send@0.4.3
+   - Do not throw uncatchable error on file open race condition
+   - Use `escape-html` for HTML escaping
+   - deps: debug@1.0.2
+   - deps: finished@1.2.2
+   - deps: fresh@0.2.2
+
+3.10.4 / 2014-06-09
+===================
+
+ * deps: connect@2.19.5
+   - fix "event emitter leak" warnings
+   - deps: csurf@1.2.1
+   - deps: debug@1.0.1
+   - deps: serve-static@1.2.2
+   - deps: type-is@1.2.1
+ * deps: debug@1.0.1
+ * deps: send@0.4.2
+   - fix "event emitter leak" warnings
+   - deps: finished@1.2.1
+   - deps: debug@1.0.1
+
+3.10.3 / 2014-06-05
+===================
+
+ * use `vary` module for `res.vary`
+ * deps: connect@2.19.4
+   - deps: errorhandler@1.0.2
+   - deps: method-override@2.0.2
+   - deps: serve-favicon@2.0.1
+ * deps: debug@1.0.0
+
+3.10.2 / 2014-06-03
+===================
+
+ * deps: connect@2.19.3
+   - deps: compression@1.0.6
+
+3.10.1 / 2014-06-03
+===================
+
+ * deps: connect@2.19.2
+   - deps: compression@1.0.4
+ * deps: proxy-addr@1.0.1
+
+3.10.0 / 2014-06-02
+===================
+
+ * deps: connect@2.19.1
+   - deprecate `methodOverride()` -- use `method-override` npm module instead
+   - deps: body-parser@1.3.0
+   - deps: method-override@2.0.1
+   - deps: multiparty@3.2.8
+   - deps: response-time@2.0.0
+   - deps: serve-static@1.2.1
+ * deps: methods@1.0.1
+ * deps: send@0.4.1
+   - Send `max-age` in `Cache-Control` in correct format
+
+3.9.0 / 2014-05-30
+==================
+
+ * custom etag control with `app.set('etag', val)`
+   - `app.set('etag', function(body, encoding){ return '"etag"' })` custom etag generation
+   - `app.set('etag', 'weak')` weak tag
+   - `app.set('etag', 'strong')` strong etag
+   - `app.set('etag', false)` turn off
+   - `app.set('etag', true)` standard etag
+ * Include ETag in HEAD requests
+ * mark `res.send` ETag as weak and reduce collisions
+ * update connect to 2.18.0
+   - deps: compression@1.0.3
+   - deps: serve-index@1.1.0
+   - deps: serve-static@1.2.0
+ * update send to 0.4.0
+   - Calculate ETag with md5 for reduced collisions
+   - Ignore stream errors after request ends
+   - deps: debug@0.8.1
+
+3.8.1 / 2014-05-27
+==================
+
+ * update connect to 2.17.3
+   - deps: body-parser@1.2.2
+   - deps: express-session@1.2.1
+   - deps: method-override@1.0.2
+
+3.8.0 / 2014-05-21
+==================
+
+ * keep previous `Content-Type` for `res.jsonp`
+ * set proper `charset` in `Content-Type` for `res.send`
+ * update connect to 2.17.1
+   - fix `res.charset` appending charset when `content-type` has one
+   - deps: express-session@1.2.0
+   - deps: morgan@1.1.1
+   - deps: serve-index@1.0.3
+
+3.7.0 / 2014-05-18
+==================
+
+ * proper proxy trust with `app.set('trust proxy', trust)`
+   - `app.set('trust proxy', 1)` trust first hop
+   - `app.set('trust proxy', 'loopback')` trust loopback addresses
+   - `app.set('trust proxy', '10.0.0.1')` trust single IP
+   - `app.set('trust proxy', '10.0.0.1/16')` trust subnet
+   - `app.set('trust proxy', '10.0.0.1, 10.0.0.2')` trust list
+   - `app.set('trust proxy', false)` turn off
+   - `app.set('trust proxy', true)` trust everything
+ * update connect to 2.16.2
+   - deprecate `res.headerSent` -- use `res.headersSent`
+   - deprecate `res.on("header")` -- use on-headers module instead
+   - fix edge-case in `res.appendHeader` that would append in wrong order
+   - json: use body-parser
+   - urlencoded: use body-parser
+   - dep: bytes@1.0.0
+   - dep: cookie-parser@1.1.0
+   - dep: csurf@1.2.0
+   - dep: express-session@1.1.0
+   - dep: method-override@1.0.1
+
+3.6.0 / 2014-05-09
+==================
+
+ * deprecate `app.del()` -- use `app.delete()` instead
+ * deprecate `res.json(obj, status)` -- use `res.json(status, obj)` instead
+   - the edge-case `res.json(status, num)` requires `res.status(status).json(num)`
+ * deprecate `res.jsonp(obj, status)` -- use `res.jsonp(status, obj)` instead
+   - the edge-case `res.jsonp(status, num)` requires `res.status(status).jsonp(num)`
+ * support PURGE method
+   - add `app.purge`
+   - add `router.purge`
+   - include PURGE in `app.all`
+ * update connect to 2.15.0
+   * Add `res.appendHeader`
+   * Call error stack even when response has been sent
+   * Patch `res.headerSent` to return Boolean
+   * Patch `res.headersSent` for node.js 0.8
+   * Prevent default 404 handler after response sent
+   * dep: compression@1.0.2
+   * dep: connect-timeout@1.1.0
+   * dep: debug@^0.8.0
+   * dep: errorhandler@1.0.1
+   * dep: express-session@1.0.4
+   * dep: morgan@1.0.1
+   * dep: serve-favicon@2.0.0
+   * dep: serve-index@1.0.2
+ * update debug to 0.8.0
+   * add `enable()` method
+   * change from stderr to stdout
+ * update methods to 1.0.0
+   - add PURGE
+ * update mkdirp to 0.5.0
+
+3.5.3 / 2014-05-08
+==================
+
+ * fix `req.host` for IPv6 literals
+ * fix `res.jsonp` error if callback param is object
+
+3.5.2 / 2014-04-24
+==================
+
+ * update connect to 2.14.5
+ * update cookie to 0.1.2
+ * update mkdirp to 0.4.0
+ * update send to 0.3.0
+
+3.5.1 / 2014-03-25
+==================
+
+ * pin less-middleware in generated app
+
+3.5.0 / 2014-03-06
+==================
+
+ * bump deps
+
+3.4.8 / 2014-01-13
+==================
+
+ * prevent incorrect automatic OPTIONS responses #1868 @dpatti
+ * update binary and examples for jade 1.0 #1876 @yossi, #1877 @reqshark, #1892 @matheusazzi
+ * throw 400 in case of malformed paths @rlidwka
+
+3.4.7 / 2013-12-10
+==================
+
+ * update connect
+
+3.4.6 / 2013-12-01
+==================
+
+ * update connect (raw-body)
+
+3.4.5 / 2013-11-27
+==================
+
+ * update connect
+ * res.location: remove leading ./ #1802 @kapouer
+ * res.redirect: fix `res.redirect('toString') #1829 @michaelficarra
+ * res.send: always send ETag when content-length > 0
+ * router: add Router.all() method
+
+3.4.4 / 2013-10-29
+==================
+
+ * update connect
+ * update supertest
+ * update methods
+ * express(1): replace bodyParser() with urlencoded() and json() #1795 @chirag04
+
+3.4.3 / 2013-10-23
+==================
+
+ * update connect
+
+3.4.2 / 2013-10-18
+==================
+
+ * update connect
+ * downgrade commander
+
+3.4.1 / 2013-10-15
+==================
+
+ * update connect
+ * update commander
+ * jsonp: check if callback is a function
+ * router: wrap encodeURIComponent in a try/catch #1735 (@lxe)
+ * res.format: now includes charset @1747 (@sorribas)
+ * res.links: allow multiple calls @1746 (@sorribas)
+
+3.4.0 / 2013-09-07
+==================
+
+ * add res.vary(). Closes #1682
+ * update connect
+
+3.3.8 / 2013-09-02
+==================
+
+ * update connect
+
+3.3.7 / 2013-08-28
+==================
+
+ * update connect
+
+3.3.6 / 2013-08-27
+==================
+
+ * Revert "remove charset from json responses. Closes #1631" (causes issues in some clients)
+ * add: req.accepts take an argument list
+
+3.3.4 / 2013-07-08
+==================
+
+ * update send and connect
+
+3.3.3 / 2013-07-04
+==================
+
+ * update connect
+
+3.3.2 / 2013-07-03
+==================
+
+ * update connect
+ * update send
+ * remove .version export
+
+3.3.1 / 2013-06-27
+==================
+
+ * update connect
+
+3.3.0 / 2013-06-26
+==================
+
+ * update connect
+ * add support for multiple X-Forwarded-Proto values. Closes #1646
+ * change: remove charset from json responses. Closes #1631
+ * change: return actual booleans from req.accept* functions
+ * fix jsonp callback array throw
+
+3.2.6 / 2013-06-02
+==================
+
+ * update connect
+
+3.2.5 / 2013-05-21
+==================
+
+ * update connect
+ * update node-cookie
+ * add: throw a meaningful error when there is no default engine
+ * change generation of ETags with res.send() to GET requests only. Closes #1619
+
+3.2.4 / 2013-05-09
+==================
+
+  * fix `req.subdomains` when no Host is present
+  * fix `req.host` when no Host is present, return undefined
+
+3.2.3 / 2013-05-07
+==================
+
+  * update connect / qs
+
+3.2.2 / 2013-05-03
+==================
+
+  * update qs
+
+3.2.1 / 2013-04-29
+==================
+
+  * add app.VERB() paths array deprecation warning
+  * update connect
+  * update qs and remove all ~ semver crap
+  * fix: accept number as value of Signed Cookie
+
+3.2.0 / 2013-04-15
+==================
+
+  * add "view" constructor setting to override view behaviour
+  * add req.acceptsEncoding(name)
+  * add req.acceptedEncodings
+  * revert cookie signature change causing session race conditions
+  * fix sorting of Accept values of the same quality
+
+3.1.2 / 2013-04-12
+==================
+
+  * add support for custom Accept parameters
+  * update cookie-signature
+
+3.1.1 / 2013-04-01
+==================
+
+  * add X-Forwarded-Host support to `req.host`
+  * fix relative redirects
+  * update mkdirp
+  * update buffer-crc32
+  * remove legacy app.configure() method from app template.
+
+3.1.0 / 2013-01-25
+==================
+
+  * add support for leading "." in "view engine" setting
+  * add array support to `res.set()`
+  * add node 0.8.x to travis.yml
+  * add "subdomain offset" setting for tweaking `req.subdomains`
+  * add `res.location(url)` implementing `res.redirect()`-like setting of Location
+  * use app.get() for x-powered-by setting for inheritance
+  * fix colons in passwords for `req.auth`
+
+3.0.6 / 2013-01-04
+==================
+
+  * add http verb methods to Router
+  * update connect
+  * fix mangling of the `res.cookie()` options object
+  * fix jsonp whitespace escape. Closes #1132
+
+3.0.5 / 2012-12-19
+==================
+
+  * add throwing when a non-function is passed to a route
+  * fix: explicitly remove Transfer-Encoding header from 204 and 304 responses
+  * revert "add 'etag' option"
+
+3.0.4 / 2012-12-05
+==================
+
+  * add 'etag' option to disable `res.send()` Etags
+  * add escaping of urls in text/plain in `res.redirect()`
+    for old browsers interpreting as html
+  * change crc32 module for a more liberal license
+  * update connect
+
+3.0.3 / 2012-11-13
+==================
+
+  * update connect
+  * update cookie module
+  * fix cookie max-age
+
+3.0.2 / 2012-11-08
+==================
+
+  * add OPTIONS to cors example. Closes #1398
+  * fix route chaining regression. Closes #1397
+
+3.0.1 / 2012-11-01
+==================
+
+  * update connect
+
+3.0.0 / 2012-10-23
+==================
+
+  * add `make clean`
+  * add "Basic" check to req.auth
+  * add `req.auth` test coverage
+  * add cb && cb(payload) to `res.jsonp()`. Closes #1374
+  * add backwards compat for `res.redirect()` status. Closes #1336
+  * add support for `res.json()` to retain previously defined Content-Types. Closes #1349
+  * update connect
+  * change `res.redirect()` to utilize a pathname-relative Location again. Closes #1382
+  * remove non-primitive string support for `res.send()`
+  * fix view-locals example. Closes #1370
+  * fix route-separation example
+
+3.0.0rc5 / 2012-09-18
+==================
+
+  * update connect
+  * add redis search example
+  * add static-files example
+  * add "x-powered-by" setting (`app.disable('x-powered-by')`)
+  * add "application/octet-stream" redirect Accept test case. Closes #1317
+
+3.0.0rc4 / 2012-08-30
+==================
+
+  * add `res.jsonp()`. Closes #1307
+  * add "verbose errors" option to error-pages example
+  * add another route example to express(1) so people are not so confused
+  * add redis online user activity tracking example
+  * update connect dep
+  * fix etag quoting. Closes #1310
+  * fix error-pages 404 status
+  * fix jsonp callback char restrictions
+  * remove old OPTIONS default response
+
+3.0.0rc3 / 2012-08-13
+==================
+
+  * update connect dep
+  * fix signed cookies to work with `connect.cookieParser()` ("s:" prefix was missing) [tnydwrds]
+  * fix `res.render()` clobbering of "locals"
+
+3.0.0rc2 / 2012-08-03
+==================
+
+  * add CORS example
+  * update connect dep
+  * deprecate `.createServer()` & remove old stale examples
+  * fix: escape `res.redirect()` link
+  * fix vhost example
+
+3.0.0rc1 / 2012-07-24
+==================
+
+  * add more examples to view-locals
+  * add scheme-relative redirects (`res.redirect("//foo.com")`) support
+  * update cookie dep
+  * update connect dep
+  * update send dep
+  * fix `express(1)` -h flag, use -H for hogan. Closes #1245
+  * fix `res.sendfile()` socket error handling regression
+
+3.0.0beta7 / 2012-07-16
+==================
+
+  * update connect dep for `send()` root normalization regression
+
+3.0.0beta6 / 2012-07-13
+==================
+
+  * add `err.view` property for view errors. Closes #1226
+  * add "jsonp callback name" setting
+  * add support for "/foo/:bar*" non-greedy matches
+  * change `res.sendfile()` to use `send()` module
+  * change `res.send` to use "response-send" module
+  * remove `app.locals.use` and `res.locals.use`, use regular middleware
+
+3.0.0beta5 / 2012-07-03
+==================
+
+  * add "make check" support
+  * add route-map example
+  * add `res.json(obj, status)` support back for BC
+  * add "methods" dep, remove internal methods module
+  * update connect dep
+  * update auth example to utilize cores pbkdf2
+  * updated tests to use "supertest"
+
+3.0.0beta4 / 2012-06-25
+==================
+
+  * Added `req.auth`
+  * Added `req.range(size)`
+  * Added `res.links(obj)`
+  * Added `res.send(body, status)` support back for backwards compat
+  * Added `.default()` support to `res.format()`
+  * Added 2xx / 304 check to `req.fresh`
+  * Revert "Added + support to the router"
+  * Fixed `res.send()` freshness check, respect res.statusCode
+
+3.0.0beta3 / 2012-06-15
+==================
+
+  * Added hogan `--hjs` to express(1) [nullfirm]
+  * Added another example to content-negotiation
+  * Added `fresh` dep
+  * Changed: `res.send()` always checks freshness
+  * Fixed: expose connects mime module. Closes #1165
+
+3.0.0beta2 / 2012-06-06
+==================
+
+  * Added `+` support to the router
+  * Added `req.host`
+  * Changed `req.param()` to check route first
+  * Update connect dep
+
+3.0.0beta1 / 2012-06-01
+==================
+
+  * Added `res.format()` callback to override default 406 behaviour
+  * Fixed `res.redirect()` 406. Closes #1154
+
+3.0.0alpha5 / 2012-05-30
+==================
+
+  * Added `req.ip`
+  * Added `{ signed: true }` option to `res.cookie()`
+  * Removed `res.signedCookie()`
+  * Changed: dont reverse `req.ips`
+  * Fixed "trust proxy" setting check for `req.ips`
+
+3.0.0alpha4 / 2012-05-09
+==================
+
+  * Added: allow `[]` in jsonp callback. Closes #1128
+  * Added `PORT` env var support in generated template. Closes #1118 [benatkin]
+  * Updated: connect 2.2.2
+
+3.0.0alpha3 / 2012-05-04
+==================
+
+  * Added public `app.routes`. Closes #887
+  * Added _view-locals_ example
+  * Added _mvc_ example
+  * Added `res.locals.use()`. Closes #1120
+  * Added conditional-GET support to `res.send()`
+  * Added: coerce `res.set()` values to strings
+  * Changed: moved `static()` in generated apps below router
+  * Changed: `res.send()` only set ETag when not previously set
+  * Changed connect 2.2.1 dep
+  * Changed: `make test` now runs unit / acceptance tests
+  * Fixed req/res proto inheritance
+
+3.0.0alpha2 / 2012-04-26
+==================
+
+  * Added `make benchmark` back
+  * Added `res.send()` support for `String` objects
+  * Added client-side data exposing example
+  * Added `res.header()` and `req.header()` aliases for BC
+  * Added `express.createServer()` for BC
+  * Perf: memoize parsed urls
+  * Perf: connect 2.2.0 dep
+  * Changed: make `expressInit()` middleware self-aware
+  * Fixed: use app.get() for all core settings
+  * Fixed redis session example
+  * Fixed session example. Closes #1105
+  * Fixed generated express dep. Closes #1078
+
+3.0.0alpha1 / 2012-04-15
+==================
+
+  * Added `app.locals.use(callback)`
+  * Added `app.locals` object
+  * Added `app.locals(obj)`
+  * Added `res.locals` object
+  * Added `res.locals(obj)`
+  * Added `res.format()` for content-negotiation
+  * Added `app.engine()`
+  * Added `res.cookie()` JSON cookie support
+  * Added "trust proxy" setting
+  * Added `req.subdomains`
+  * Added `req.protocol`
+  * Added `req.secure`
+  * Added `req.path`
+  * Added `req.ips`
+  * Added `req.fresh`
+  * Added `req.stale`
+  * Added comma-delimited / array support for `req.accepts()`
+  * Added debug instrumentation
+  * Added `res.set(obj)`
+  * Added `res.set(field, value)`
+  * Added `res.get(field)`
+  * Added `app.get(setting)`. Closes #842
+  * Added `req.acceptsLanguage()`
+  * Added `req.acceptsCharset()`
+  * Added `req.accepted`
+  * Added `req.acceptedLanguages`
+  * Added `req.acceptedCharsets`
+  * Added "json replacer" setting
+  * Added "json spaces" setting
+  * Added X-Forwarded-Proto support to `res.redirect()`. Closes #92
+  * Added `--less` support to express(1)
+  * Added `express.response` prototype
+  * Added `express.request` prototype
+  * Added `express.application` prototype
+  * Added `app.path()`
+  * Added `app.render()`
+  * Added `res.type()` to replace `res.contentType()`
+  * Changed: `res.redirect()` to add relative support
+  * Changed: enable "jsonp callback" by default
+  * Changed: renamed "case sensitive routes" to "case sensitive routing"
+  * Rewrite of all tests with mocha
+  * Removed "root" setting
+  * Removed `res.redirect('home')` support
+  * Removed `req.notify()`
+  * Removed `app.register()`
+  * Removed `app.redirect()`
+  * Removed `app.is()`
+  * Removed `app.helpers()`
+  * Removed `app.dynamicHelpers()`
+  * Fixed `res.sendfile()` with non-GET. Closes #723
+  * Fixed express(1) public dir for windows. Closes #866
+
+2.5.9/ 2012-04-02
+==================
+
+  * Added support for PURGE request method [pbuyle]
+  * Fixed `express(1)` generated app `app.address()` before `listening` [mmalecki]
+
+2.5.8 / 2012-02-08
+==================
+
+  * Update mkdirp dep. Closes #991
+
+2.5.7 / 2012-02-06
+==================
+
+  * Fixed `app.all` duplicate DELETE requests [mscdex]
+
+2.5.6 / 2012-01-13
+==================
+
+  * Updated hamljs dev dep. Closes #953
+
+2.5.5 / 2012-01-08
+==================
+
+  * Fixed: set `filename` on cached templates [matthewleon]
+
+2.5.4 / 2012-01-02
+==================
+
+  * Fixed `express(1)` eol on 0.4.x. Closes #947
+
+2.5.3 / 2011-12-30
+==================
+
+  * Fixed `req.is()` when a charset is present
+
+2.5.2 / 2011-12-10
+==================
+
+  * Fixed: express(1) LF -> CRLF for windows
+
+2.5.1 / 2011-11-17
+==================
+
+  * Changed: updated connect to 1.8.x
+  * Removed sass.js support from express(1)
+
+2.5.0 / 2011-10-24
+==================
+
+  * Added ./routes dir for generated app by default
+  * Added npm install reminder to express(1) app gen
+  * Added 0.5.x support
+  * Removed `make test-cov` since it wont work with node 0.5.x
+  * Fixed express(1) public dir for windows. Closes #866
+
+2.4.7 / 2011-10-05
+==================
+
+  * Added mkdirp to express(1). Closes #795
+  * Added simple _json-config_ example
+  * Added  shorthand for the parsed request's pathname via `req.path`
+  * Changed connect dep to 1.7.x to fix npm issue...
+  * Fixed `res.redirect()` __HEAD__ support. [reported by xerox]
+  * Fixed `req.flash()`, only escape args
+  * Fixed absolute path checking on windows. Closes #829 [reported by andrewpmckenzie]
+
+2.4.6 / 2011-08-22
+==================
+
+  * Fixed multiple param callback regression. Closes #824 [reported by TroyGoode]
+
+2.4.5 / 2011-08-19
+==================
+
+  * Added support for routes to handle errors. Closes #809
+  * Added `app.routes.all()`. Closes #803
+  * Added "basepath" setting to work in conjunction with reverse proxies etc.
+  * Refactored `Route` to use a single array of callbacks
+  * Added support for multiple callbacks for `app.param()`. Closes #801
+Closes #805
+  * Changed: removed .call(self) for route callbacks
+  * Dependency: `qs >= 0.3.1`
+  * Fixed `res.redirect()` on windows due to `join()` usage. Closes #808
+
+2.4.4 / 2011-08-05
+==================
+
+  * Fixed `res.header()` intention of a set, even when `undefined`
+  * Fixed `*`, value no longer required
+  * Fixed `res.send(204)` support. Closes #771
+
+2.4.3 / 2011-07-14
+==================
+
+  * Added docs for `status` option special-case. Closes #739
+  * Fixed `options.filename`, exposing the view path to template engines
+
+2.4.2. / 2011-07-06
+==================
+
+  * Revert "removed jsonp stripping" for XSS
+
+2.4.1 / 2011-07-06
+==================
+
+  * Added `res.json()` JSONP support. Closes #737
+  * Added _extending-templates_ example. Closes #730
+  * Added "strict routing" setting for trailing slashes
+  * Added support for multiple envs in `app.configure()` calls. Closes #735
+  * Changed: `res.send()` using `res.json()`
+  * Changed: when cookie `path === null` don't default it
+  * Changed; default cookie path to "home" setting. Closes #731
+  * Removed _pids/logs_ creation from express(1)
+
+2.4.0 / 2011-06-28
+==================
+
+  * Added chainable `res.status(code)`
+  * Added `res.json()`, an explicit version of `res.send(obj)`
+  * Added simple web-service example
+
+2.3.12 / 2011-06-22
+==================
+
+  * \#express is now on freenode! come join!
+  * Added `req.get(field, param)`
+  * Added links to Japanese documentation, thanks @hideyukisaito!
+  * Added; the `express(1)` generated app outputs the env
+  * Added `content-negotiation` example
+  * Dependency: connect >= 1.5.1 < 2.0.0
+  * Fixed view layout bug. Closes #720
+  * Fixed; ignore body on 304. Closes #701
+
+2.3.11 / 2011-06-04
+==================
+
+  * Added `npm test`
+  * Removed generation of dummy test file from `express(1)`
+  * Fixed; `express(1)` adds express as a dep
+  * Fixed; prune on `prepublish`
+
+2.3.10 / 2011-05-27
+==================
+
+  * Added `req.route`, exposing the current route
+  * Added _package.json_ generation support to `express(1)`
+  * Fixed call to `app.param()` function for optional params. Closes #682
+
+2.3.9 / 2011-05-25
+==================
+
+  * Fixed bug-ish with `../' in `res.partial()` calls
+
+2.3.8 / 2011-05-24
+==================
+
+  * Fixed `app.options()`
+
+2.3.7 / 2011-05-23
+==================
+
+  * Added route `Collection`, ex: `app.get('/user/:id').remove();`
+  * Added support for `app.param(fn)` to define param logic
+  * Removed `app.param()` support for callback with return value
+  * Removed module.parent check from express(1) generated app. Closes #670
+  * Refactored router. Closes #639
+
+2.3.6 / 2011-05-20
+==================
+
+  * Changed; using devDependencies instead of git submodules
+  * Fixed redis session example
+  * Fixed markdown example
+  * Fixed view caching, should not be enabled in development
+
+2.3.5 / 2011-05-20
+==================
+
+  * Added export `.view` as alias for `.View`
+
+2.3.4 / 2011-05-08
+==================
+
+  * Added `./examples/say`
+  * Fixed `res.sendfile()` bug preventing the transfer of files with spaces
+
+2.3.3 / 2011-05-03
+==================
+
+  * Added "case sensitive routes" option.
+  * Changed; split methods supported per rfc [slaskis]
+  * Fixed route-specific middleware when using the same callback function several times
+
+2.3.2 / 2011-04-27
+==================
+
+  * Fixed view hints
+
+2.3.1 / 2011-04-26
+==================
+
+  * Added `app.match()` as `app.match.all()`
+  * Added `app.lookup()` as `app.lookup.all()`
+  * Added `app.remove()` for `app.remove.all()`
+  * Added `app.remove.VERB()`
+  * Fixed template caching collision issue. Closes #644
+  * Moved router over from connect and started refactor
+
+2.3.0 / 2011-04-25
+==================
+
+  * Added options support to `res.clearCookie()`
+  * Added `res.helpers()` as alias of `res.locals()`
+  * Added; json defaults to UTF-8 with `res.send()`. Closes #632. [Daniel   * Dependency `connect >= 1.4.0`
+  * Changed; auto set Content-Type in res.attachement [Aaron Heckmann]
+  * Renamed "cache views" to "view cache". Closes #628
+  * Fixed caching of views when using several apps. Closes #637
+  * Fixed gotcha invoking `app.param()` callbacks once per route middleware.
+Closes #638
+  * Fixed partial lookup precedence. Closes #631
+Shaw]
+
+2.2.2 / 2011-04-12
+==================
+
+  * Added second callback support for `res.download()` connection errors
+  * Fixed `filename` option passing to template engine
+
+2.2.1 / 2011-04-04
+==================
+
+  * Added `layout(path)` helper to change the layout within a view. Closes #610
+  * Fixed `partial()` collection object support.
+    Previously only anything with `.length` would work.
+    When `.length` is present one must still be aware of holes,
+    however now `{ collection: {foo: 'bar'}}` is valid, exposes
+    `keyInCollection` and `keysInCollection`.
+
+  * Performance improved with better view caching
+  * Removed `request` and `response` locals
+  * Changed; errorHandler page title is now `Express` instead of `Connect`
+
+2.2.0 / 2011-03-30
+==================
+
+  * Added `app.lookup.VERB()`, ex `app.lookup.put('/user/:id')`. Closes #606
+  * Added `app.match.VERB()`, ex `app.match.put('/user/12')`. Closes #606
+  * Added `app.VERB(path)` as alias of `app.lookup.VERB()`.
+  * Dependency `connect >= 1.2.0`
+
+2.1.1 / 2011-03-29
+==================
+
+  * Added; expose `err.view` object when failing to locate a view
+  * Fixed `res.partial()` call `next(err)` when no callback is given [reported by aheckmann]
+  * Fixed; `res.send(undefined)` responds with 204 [aheckmann]
+
+2.1.0 / 2011-03-24
+==================
+
+  * Added `<root>/_?<name>` partial lookup support. Closes #447
+  * Added `request`, `response`, and `app` local variables
+  * Added `settings` local variable, containing the app's settings
+  * Added `req.flash()` exception if `req.session` is not available
+  * Added `res.send(bool)` support (json response)
+  * Fixed stylus example for latest version
+  * Fixed; wrap try/catch around `res.render()`
+
+2.0.0 / 2011-03-17
+==================
+
+  * Fixed up index view path alternative.
+  * Changed; `res.locals()` without object returns the locals
+
+2.0.0rc3 / 2011-03-17
+==================
+
+  * Added `res.locals(obj)` to compliment `res.local(key, val)`
+  * Added `res.partial()` callback support
+  * Fixed recursive error reporting issue in `res.render()`
+
+2.0.0rc2 / 2011-03-17
+==================
+
+  * Changed; `partial()` "locals" are now optional
+  * Fixed `SlowBuffer` support. Closes #584 [reported by tyrda01]
+  * Fixed .filename view engine option [reported by drudge]
+  * Fixed blog example
+  * Fixed `{req,res}.app` reference when mounting [Ben Weaver]
+
+2.0.0rc / 2011-03-14
+==================
+
+  * Fixed; expose `HTTPSServer` constructor
+  * Fixed express(1) default test charset. Closes #579 [reported by secoif]
+  * Fixed; default charset to utf-8 instead of utf8 for lame IE [reported by NickP]
+
+2.0.0beta3 / 2011-03-09
+==================
+
+  * Added support for `res.contentType()` literal
+    The original `res.contentType('.json')`,
+    `res.contentType('application/json')`, and `res.contentType('json')`
+    will work now.
+  * Added `res.render()` status option support back
+  * Added charset option for `res.render()`
+  * Added `.charset` support (via connect 1.0.4)
+  * Added view resolution hints when in development and a lookup fails
+  * Added layout lookup support relative to the page view.
+    For example while rendering `./views/user/index.jade` if you create
+    `./views/user/layout.jade` it will be used in favour of the root layout.
+  * Fixed `res.redirect()`. RFC states absolute url [reported by unlink]
+  * Fixed; default `res.send()` string charset to utf8
+  * Removed `Partial` constructor (not currently used)
+
+2.0.0beta2 / 2011-03-07
+==================
+
+  * Added res.render() `.locals` support back to aid in migration process
+  * Fixed flash example
+
+2.0.0beta / 2011-03-03
+==================
+
+  * Added HTTPS support
+  * Added `res.cookie()` maxAge support
+  * Added `req.header()` _Referrer_ / _Referer_ special-case, either works
+  * Added mount support for `res.redirect()`, now respects the mount-point
+  * Added `union()` util, taking place of `merge(clone())` combo
+  * Added stylus support to express(1) generated app
+  * Added secret to session middleware used in examples and generated app
+  * Added `res.local(name, val)` for progressive view locals
+  * Added default param support to `req.param(name, default)`
+  * Added `app.disabled()` and `app.enabled()`
+  * Added `app.register()` support for omitting leading ".", either works
+  * Added `res.partial()`, using the same interface as `partial()` within a view. Closes #539
+  * Added `app.param()` to map route params to async/sync logic
+  * Added; aliased `app.helpers()` as `app.locals()`. Closes #481
+  * Added extname with no leading "." support to `res.contentType()`
+  * Added `cache views` setting, defaulting to enabled in "production" env
+  * Added index file partial resolution, eg: partial('user') may try _views/user/index.jade_.
+  * Added `req.accepts()` support for extensions
+  * Changed; `res.download()` and `res.sendfile()` now utilize Connect's
+    static file server `connect.static.send()`.
+  * Changed; replaced `connect.utils.mime()` with npm _mime_ module
+  * Changed; allow `req.query` to be pre-defined (via middleware or other parent
+  * Changed view partial resolution, now relative to parent view
+  * Changed view engine signature. no longer `engine.render(str, options, callback)`, now `engine.compile(str, options) -> Function`, the returned function accepts `fn(locals)`.
+  * Fixed `req.param()` bug returning Array.prototype methods. Closes #552
+  * Fixed; using `Stream#pipe()` instead of `sys.pump()` in `res.sendfile()`
+  * Fixed; using _qs_ module instead of _querystring_
+  * Fixed; strip unsafe chars from jsonp callbacks
+  * Removed "stream threshold" setting
+
+1.0.8 / 2011-03-01
+==================
+
+  * Allow `req.query` to be pre-defined (via middleware or other parent app)
+  * "connect": ">= 0.5.0 < 1.0.0". Closes #547
+  * Removed the long deprecated __EXPRESS_ENV__ support
+
+1.0.7 / 2011-02-07
+==================
+
+  * Fixed `render()` setting inheritance.
+    Mounted apps would not inherit "view engine"
+
+1.0.6 / 2011-02-07
+==================
+
+  * Fixed `view engine` setting bug when period is in dirname
+
+1.0.5 / 2011-02-05
+==================
+
+  * Added secret to generated app `session()` call
+
+1.0.4 / 2011-02-05
+==================
+
+  * Added `qs` dependency to _package.json_
+  * Fixed namespaced `require()`s for latest connect support
+
+1.0.3 / 2011-01-13
+==================
+
+  * Remove unsafe characters from JSONP callback names [Ryan Grove]
+
+1.0.2 / 2011-01-10
+==================
+
+  * Removed nested require, using `connect.router`
+
+1.0.1 / 2010-12-29
+==================
+
+  * Fixed for middleware stacked via `createServer()`
+    previously the `foo` middleware passed to `createServer(foo)`
+    would not have access to Express methods such as `res.send()`
+    or props like `req.query` etc.
+
+1.0.0 / 2010-11-16
+==================
+
+  * Added; deduce partial object names from the last segment.
+    For example by default `partial('forum/post', postObject)` will
+    give you the _post_ object, providing a meaningful default.
+  * Added http status code string representation to `res.redirect()` body
+  * Added; `res.redirect()` supporting _text/plain_ and _text/html_ via __Accept__.
+  * Added `req.is()` to aid in content negotiation
+  * Added partial local inheritance [suggested by masylum]. Closes #102
+    providing access to parent template locals.
+  * Added _-s, --session[s]_ flag to express(1) to add session related middleware
+  * Added _--template_ flag to express(1) to specify the
+    template engine to use.
+  * Added _--css_ flag to express(1) to specify the
+    stylesheet engine to use (or just plain css by default).
+  * Added `app.all()` support [thanks aheckmann]
+  * Added partial direct object support.
+    You may now `partial('user', user)` providing the "user" local,
+    vs previously `partial('user', { object: user })`.
+  * Added _route-separation_ example since many people question ways
+    to do this with CommonJS modules. Also view the _blog_ example for
+    an alternative.
+  * Performance; caching view path derived partial object names
+  * Fixed partial local inheritance precedence. [reported by Nick Poulden] Closes #454
+  * Fixed jsonp support; _text/javascript_ as per mailinglist discussion
+
+1.0.0rc4 / 2010-10-14
+==================
+
+  * Added _NODE_ENV_ support, _EXPRESS_ENV_ is deprecated and will be removed in 1.0.0
+  * Added route-middleware support (very helpful, see the [docs](http://expressjs.com/guide.html#Route-Middleware))
+  * Added _jsonp callback_ setting to enable/disable jsonp autowrapping [Dav Glass]
+  * Added callback query check on response.send to autowrap JSON objects for simple webservice implementations [Dav Glass]
+  * Added `partial()` support for array-like collections. Closes #434
+  * Added support for swappable querystring parsers
+  * Added session usage docs. Closes #443
+  * Added dynamic helper caching. Closes #439 [suggested by maritz]
+  * Added authentication example
+  * Added basic Range support to `res.sendfile()` (and `res.download()` etc)
+  * Changed; `express(1)` generated app using 2 spaces instead of 4
+  * Default env to "development" again [aheckmann]
+  * Removed _context_ option is no more, use "scope"
+  * Fixed; exposing _./support_ libs to examples so they can run without installs
+  * Fixed mvc example
+
+1.0.0rc3 / 2010-09-20
+==================
+
+  * Added confirmation for `express(1)` app generation. Closes #391
+  * Added extending of flash formatters via `app.flashFormatters`
+  * Added flash formatter support. Closes #411
+  * Added streaming support to `res.sendfile()` using `sys.pump()` when >= "stream threshold"
+  * Added _stream threshold_ setting for `res.sendfile()`
+  * Added `res.send()` __HEAD__ support
+  * Added `res.clearCookie()`
+  * Added `res.cookie()`
+  * Added `res.render()` headers option
+  * Added `res.redirect()` response bodies
+  * Added `res.render()` status option support. Closes #425 [thanks aheckmann]
+  * Fixed `res.sendfile()` responding with 403 on malicious path
+  * Fixed `res.download()` bug; when an error occurs remove _Content-Disposition_
+  * Fixed; mounted apps settings now inherit from parent app [aheckmann]
+  * Fixed; stripping Content-Length / Content-Type when 204
+  * Fixed `res.send()` 204. Closes #419
+  * Fixed multiple _Set-Cookie_ headers via `res.header()`. Closes #402
+  * Fixed bug messing with error handlers when `listenFD()` is called instead of `listen()`. [thanks guillermo]
+
+
+1.0.0rc2 / 2010-08-17
+==================
+
+  * Added `app.register()` for template engine mapping. Closes #390
+  * Added `res.render()` callback support as second argument (no options)
+  * Added callback support to `res.download()`
+  * Added callback support for `res.sendfile()`
+  * Added support for middleware access via `express.middlewareName()` vs `connect.middlewareName()`
+  * Added "partials" setting to docs
+  * Added default expresso tests to `express(1)` generated app. Closes #384
+  * Fixed `res.sendfile()` error handling, defer via `next()`
+  * Fixed `res.render()` callback when a layout is used [thanks guillermo]
+  * Fixed; `make install` creating ~/.node_libraries when not present
+  * Fixed issue preventing error handlers from being defined anywhere. Closes #387
+
+1.0.0rc / 2010-07-28
+==================
+
+  * Added mounted hook. Closes #369
+  * Added connect dependency to _package.json_
+
+  * Removed "reload views" setting and support code
+    development env never caches, production always caches.
+
+  * Removed _param_ in route callbacks, signature is now
+    simply (req, res, next), previously (req, res, params, next).
+    Use _req.params_ for path captures, _req.query_ for GET params.
+
+  * Fixed "home" setting
+  * Fixed middleware/router precedence issue. Closes #366
+  * Fixed; _configure()_ callbacks called immediately. Closes #368
+
+1.0.0beta2 / 2010-07-23
+==================
+
+  * Added more examples
+  * Added; exporting `Server` constructor
+  * Added `Server#helpers()` for view locals
+  * Added `Server#dynamicHelpers()` for dynamic view locals. Closes #349
+  * Added support for absolute view paths
+  * Added; _home_ setting defaults to `Server#route` for mounted apps. Closes #363
+  * Added Guillermo Rauch to the contributor list
+  * Added support for "as" for non-collection partials. Closes #341
+  * Fixed _install.sh_, ensuring _~/.node_libraries_ exists. Closes #362 [thanks jf]
+  * Fixed `res.render()` exceptions, now passed to `next()` when no callback is given [thanks guillermo]
+  * Fixed instanceof `Array` checks, now `Array.isArray()`
+  * Fixed express(1) expansion of public dirs. Closes #348
+  * Fixed middleware precedence. Closes #345
+  * Fixed view watcher, now async [thanks aheckmann]
+
+1.0.0beta / 2010-07-15
+==================
+
+  * Re-write
+    - much faster
+    - much lighter
+    - Check [ExpressJS.com](http://expressjs.com) for migration guide and updated docs
+
+0.14.0 / 2010-06-15
+==================
+
+  * Utilize relative requires
+  * Added Static bufferSize option [aheckmann]
+  * Fixed caching of view and partial subdirectories [aheckmann]
+  * Fixed mime.type() comments now that ".ext" is not supported
+  * Updated haml submodule
+  * Updated class submodule
+  * Removed bin/express
+
+0.13.0 / 2010-06-01
+==================
+
+  * Added node v0.1.97 compatibility
+  * Added support for deleting cookies via Request#cookie('key', null)
+  * Updated haml submodule
+  * Fixed not-found page, now using charset utf-8
+  * Fixed show-exceptions page, now using charset utf-8
+  * Fixed view support due to fs.readFile Buffers
+  * Changed; mime.type() no longer accepts ".type" due to node extname() changes
+
+0.12.0 / 2010-05-22
+==================
+
+  * Added node v0.1.96 compatibility
+  * Added view `helpers` export which act as additional local variables
+  * Updated haml submodule
+  * Changed ETag; removed inode, modified time only
+  * Fixed LF to CRLF for setting multiple cookies
+  * Fixed cookie compilation; values are now urlencoded
+  * Fixed cookies parsing; accepts quoted values and url escaped cookies
+
+0.11.0 / 2010-05-06
+==================
+
+  * Added support for layouts using different engines
+    - this.render('page.html.haml', { layout: 'super-cool-layout.html.ejs' })
+    - this.render('page.html.haml', { layout: 'foo' }) // assumes 'foo.html.haml'
+    - this.render('page.html.haml', { layout: false }) // no layout
+  * Updated ext submodule
+  * Updated haml submodule
+  * Fixed EJS partial support by passing along the context. Issue #307
+
+0.10.1 / 2010-05-03
+==================
+
+  * Fixed binary uploads.
+
+0.10.0 / 2010-04-30
+==================
+
+  * Added charset support via Request#charset (automatically assigned to 'UTF-8' when respond()'s
+    encoding is set to 'utf8' or 'utf-8').
+  * Added "encoding" option to Request#render(). Closes #299
+  * Added "dump exceptions" setting, which is enabled by default.
+  * Added simple ejs template engine support
+  * Added error response support for text/plain, application/json. Closes #297
+  * Added callback function param to Request#error()
+  * Added Request#sendHead()
+  * Added Request#stream()
+  * Added support for Request#respond(304, null) for empty response bodies
+  * Added ETag support to Request#sendfile()
+  * Added options to Request#sendfile(), passed to fs.createReadStream()
+  * Added filename arg to Request#download()
+  * Performance enhanced due to pre-reversing plugins so that plugins.reverse() is not called on each request
+  * Performance enhanced by preventing several calls to toLowerCase() in Router#match()
+  * Changed; Request#sendfile() now streams
+  * Changed; Renamed Request#halt() to Request#respond(). Closes #289
+  * Changed; Using sys.inspect() instead of JSON.encode() for error output
+  * Changed; run() returns the http.Server instance. Closes #298
+  * Changed; Defaulting Server#host to null (INADDR_ANY)
+  * Changed; Logger "common" format scale of 0.4f
+  * Removed Logger "request" format
+  * Fixed; Catching ENOENT in view caching, preventing error when "views/partials" is not found
+  * Fixed several issues with http client
+  * Fixed Logger Content-Length output
+  * Fixed bug preventing Opera from retaining the generated session id. Closes #292
+
+0.9.0 / 2010-04-14
+==================
+
+  * Added DSL level error() route support
+  * Added DSL level notFound() route support
+  * Added Request#error()
+  * Added Request#notFound()
+  * Added Request#render() callback function. Closes #258
+  * Added "max upload size" setting
+  * Added "magic" variables to collection partials (\_\_index\_\_, \_\_length\_\_, \_\_isFirst\_\_, \_\_isLast\_\_). Closes #254
+  * Added [haml.js](http://github.com/visionmedia/haml.js) submodule; removed haml-js
+  * Added callback function support to Request#halt() as 3rd/4th arg
+  * Added preprocessing of route param wildcards using param(). Closes #251
+  * Added view partial support (with collections etc.)
+  * Fixed bug preventing falsey params (such as ?page=0). Closes #286
+  * Fixed setting of multiple cookies. Closes #199
+  * Changed; view naming convention is now NAME.TYPE.ENGINE (for example page.html.haml)
+  * Changed; session cookie is now httpOnly
+  * Changed; Request is no longer global
+  * Changed; Event is no longer global
+  * Changed; "sys" module is no longer global
+  * Changed; moved Request#download to Static plugin where it belongs
+  * Changed; Request instance created before body parsing. Closes #262
+  * Changed; Pre-caching views in memory when "cache view contents" is enabled. Closes #253
+  * Changed; Pre-caching view partials in memory when "cache view partials" is enabled
+  * Updated support to node --version 0.1.90
+  * Updated dependencies
+  * Removed set("session cookie") in favour of use(Session, { cookie: { ... }})
+  * Removed utils.mixin(); use Object#mergeDeep()
+
+0.8.0 / 2010-03-19
+==================
+
+  * Added coffeescript example app. Closes #242
+  * Changed; cache api now async friendly. Closes #240
+  * Removed deprecated 'express/static' support. Use 'express/plugins/static'
+
+0.7.6 / 2010-03-19
+==================
+
+  * Added Request#isXHR. Closes #229
+  * Added `make install` (for the executable)
+  * Added `express` executable for setting up simple app templates
+  * Added "GET /public/*" to Static plugin, defaulting to <root>/public
+  * Added Static plugin
+  * Fixed; Request#render() only calls cache.get() once
+  * Fixed; Namespacing View caches with "view:"
+  * Fixed; Namespacing Static caches with "static:"
+  * Fixed; Both example apps now use the Static plugin
+  * Fixed set("views"). Closes #239
+  * Fixed missing space for combined log format
+  * Deprecated Request#sendfile() and 'express/static'
+  * Removed Server#running
+
+0.7.5 / 2010-03-16
+==================
+
+  * Added Request#flash() support without args, now returns all flashes
+  * Updated ext submodule
+
+0.7.4 / 2010-03-16
+==================
+
+  * Fixed session reaper
+  * Changed; class.js replacing js-oo Class implementation (quite a bit faster, no browser cruft)
+
+0.7.3 / 2010-03-16
+==================
+
+  * Added package.json
+  * Fixed requiring of haml / sass due to kiwi removal
+
+0.7.2 / 2010-03-16
+==================
+
+  * Fixed GIT submodules (HAH!)
+
+0.7.1 / 2010-03-16
+==================
+
+  * Changed; Express now using submodules again until a PM is adopted
+  * Changed; chat example using millisecond conversions from ext
+
+0.7.0 / 2010-03-15
+==================
+
+  * Added Request#pass() support (finds the next matching route, or the given path)
+  * Added Logger plugin (default "common" format replaces CommonLogger)
+  * Removed Profiler plugin
+  * Removed CommonLogger plugin
+
+0.6.0 / 2010-03-11
+==================
+
+  * Added seed.yml for kiwi package management support
+  * Added HTTP client query string support when method is GET. Closes #205
+
+  * Added support for arbitrary view engines.
+    For example "foo.engine.html" will now require('engine'),
+    the exports from this module are cached after the first require().
+
+  * Added async plugin support
+
+  * Removed usage of RESTful route funcs as http client
+    get() etc, use http.get() and friends
+
+  * Removed custom exceptions
+
+0.5.0 / 2010-03-10
+==================
+
+  * Added ext dependency (library of js extensions)
+  * Removed extname() / basename() utils. Use path module
+  * Removed toArray() util. Use arguments.values
+  * Removed escapeRegexp() util. Use RegExp.escape()
+  * Removed process.mixin() dependency. Use utils.mixin()
+  * Removed Collection
+  * Removed ElementCollection
+  * Shameless self promotion of ebook "Advanced JavaScript" (http://dev-mag.com)  ;)
+
+0.4.0 / 2010-02-11
+==================
+
+  * Added flash() example to sample upload app
+  * Added high level restful http client module (express/http)
+  * Changed; RESTful route functions double as HTTP clients. Closes #69
+  * Changed; throwing error when routes are added at runtime
+  * Changed; defaulting render() context to the current Request. Closes #197
+  * Updated haml submodule
+
+0.3.0 / 2010-02-11
+==================
+
+  * Updated haml / sass submodules. Closes #200
+  * Added flash message support. Closes #64
+  * Added accepts() now allows multiple args. fixes #117
+  * Added support for plugins to halt. Closes #189
+  * Added alternate layout support. Closes #119
+  * Removed Route#run(). Closes #188
+  * Fixed broken specs due to use(Cookie) missing
+
+0.2.1 / 2010-02-05
+==================
+
+  * Added "plot" format option for Profiler (for gnuplot processing)
+  * Added request number to Profiler plugin
+  * Fixed binary encoding for multipart file uploads, was previously defaulting to UTF8
+  * Fixed issue with routes not firing when not files are present. Closes #184
+  * Fixed process.Promise -> events.Promise
+
+0.2.0 / 2010-02-03
+==================
+
+  * Added parseParam() support for name[] etc. (allows for file inputs with "multiple" attr) Closes #180
+  * Added Both Cache and Session option "reapInterval" may be "reapEvery". Closes #174
+  * Added expiration support to cache api with reaper. Closes #133
+  * Added cache Store.Memory#reap()
+  * Added Cache; cache api now uses first class Cache instances
+  * Added abstract session Store. Closes #172
+  * Changed; cache Memory.Store#get() utilizing Collection
+  * Renamed MemoryStore -> Store.Memory
+  * Fixed use() of the same plugin several time will always use latest options. Closes #176
+
+0.1.0 / 2010-02-03
+==================
+
+  * Changed; Hooks (before / after) pass request as arg as well as evaluated in their context
+  * Updated node support to 0.1.27 Closes #169
+  * Updated dirname(__filename) -> __dirname
+  * Updated libxmljs support to v0.2.0
+  * Added session support with memory store / reaping
+  * Added quick uid() helper
+  * Added multi-part upload support
+  * Added Sass.js support / submodule
+  * Added production env caching view contents and static files
+  * Added static file caching. Closes #136
+  * Added cache plugin with memory stores
+  * Added support to StaticFile so that it works with non-textual files.
+  * Removed dirname() helper
+  * Removed several globals (now their modules must be required)
+
+0.0.2 / 2010-01-10
+==================
+
+  * Added view benchmarks; currently haml vs ejs
+  * Added Request#attachment() specs. Closes #116
+  * Added use of node's parseQuery() util. Closes #123
+  * Added `make init` for submodules
+  * Updated Haml
+  * Updated sample chat app to show messages on load
+  * Updated libxmljs parseString -> parseHtmlString
+  * Fixed `make init` to work with older versions of git
+  * Fixed specs can now run independent specs for those who can't build deps. Closes #127
+  * Fixed issues introduced by the node url module changes. Closes 126.
+  * Fixed two assertions failing due to Collection#keys() returning strings
+  * Fixed faulty Collection#toArray() spec due to keys() returning strings
+  * Fixed `make test` now builds libxmljs.node before testing
+
+0.0.1 / 2010-01-03
+==================
+
+  * Initial release
diff --git a/backend/node_modules/express/LICENSE b/backend/node_modules/express/LICENSE
new file mode 100644
index 0000000..aa927e4
--- /dev/null
+++ b/backend/node_modules/express/LICENSE
@@ -0,0 +1,24 @@
+(The MIT License)
+
+Copyright (c) 2009-2014 TJ Holowaychuk <tj@vision-media.ca>
+Copyright (c) 2013-2014 Roman Shtylman <shtylman+expressjs@gmail.com>
+Copyright (c) 2014-2015 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/express/Readme.md b/backend/node_modules/express/Readme.md
new file mode 100644
index 0000000..bc108d5
--- /dev/null
+++ b/backend/node_modules/express/Readme.md
@@ -0,0 +1,260 @@
+[![Express Logo](https://i.cloudup.com/zfY6lL7eFa-3000x3000.png)](http://expressjs.com/)
+
+**Fast, unopinionated, minimalist web framework for [Node.js](http://nodejs.org).**
+
+**This project has a [Code of Conduct][].**
+
+## Table of contents
+
+* [Installation](#Installation)
+* [Features](#Features)
+* [Docs & Community](#docs--community)
+* [Quick Start](#Quick-Start)
+* [Running Tests](#Running-Tests)
+* [Philosophy](#Philosophy)
+* [Examples](#Examples)
+* [Contributing to Express](#Contributing)
+* [TC (Technical Committee)](#tc-technical-committee)
+* [Triagers](#triagers)
+* [License](#license)
+
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Install Size][npm-install-size-image]][npm-install-size-url]
+[![NPM Downloads][npm-downloads-image]][npm-downloads-url]
+[![OpenSSF Scorecard Badge][ossf-scorecard-badge]][ossf-scorecard-visualizer]
+
+
+```js
+const express = require('express')
+const app = express()
+
+app.get('/', function (req, res) {
+  res.send('Hello World')
+})
+
+app.listen(3000)
+```
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/).
+
+Before installing, [download and install Node.js](https://nodejs.org/en/download/).
+Node.js 0.10 or higher is required.
+
+If this is a brand new project, make sure to create a `package.json` first with
+the [`npm init` command](https://docs.npmjs.com/creating-a-package-json-file).
+
+Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```console
+$ npm install express
+```
+
+Follow [our installing guide](http://expressjs.com/en/starter/installing.html)
+for more information.
+
+## Features
+
+  * Robust routing
+  * Focus on high performance
+  * Super-high test coverage
+  * HTTP helpers (redirection, caching, etc)
+  * View system supporting 14+ template engines
+  * Content negotiation
+  * Executable for generating applications quickly
+
+## Docs & Community
+
+  * [Website and Documentation](http://expressjs.com/) - [[website repo](https://github.com/expressjs/expressjs.com)]
+  * [#express](https://web.libera.chat/#express) on [Libera Chat](https://libera.chat) IRC
+  * [GitHub Organization](https://github.com/expressjs) for Official Middleware & Modules
+  * Visit the [Wiki](https://github.com/expressjs/express/wiki)
+  * [Google Group](https://groups.google.com/group/express-js) for discussion
+  * [Gitter](https://gitter.im/expressjs/express) for support and discussion
+
+**PROTIP** Be sure to read [Migrating from 3.x to 4.x](https://github.com/expressjs/express/wiki/Migrating-from-3.x-to-4.x) as well as [New features in 4.x](https://github.com/expressjs/express/wiki/New-features-in-4.x).
+
+## Quick Start
+
+  The quickest way to get started with express is to utilize the executable [`express(1)`](https://github.com/expressjs/generator) to generate an application as shown below:
+
+  Install the executable. The executable's major version will match Express's:
+
+```console
+$ npm install -g express-generator@4
+```
+
+  Create the app:
+
+```console
+$ express /tmp/foo && cd /tmp/foo
+```
+
+  Install dependencies:
+
+```console
+$ npm install
+```
+
+  Start the server:
+
+```console
+$ npm start
+```
+
+  View the website at: http://localhost:3000
+
+## Philosophy
+
+  The Express philosophy is to provide small, robust tooling for HTTP servers, making
+  it a great solution for single page applications, websites, hybrids, or public
+  HTTP APIs.
+
+  Express does not force you to use any specific ORM or template engine. With support for over
+  14 template engines via [Consolidate.js](https://github.com/tj/consolidate.js),
+  you can quickly craft your perfect framework.
+
+## Examples
+
+  To view the examples, clone the Express repo and install the dependencies:
+
+```console
+$ git clone https://github.com/expressjs/express.git --depth 1
+$ cd express
+$ npm install
+```
+
+  Then run whichever example you want:
+
+```console
+$ node examples/content-negotiation
+```
+
+## Contributing
+
+  [![Linux Build][github-actions-ci-image]][github-actions-ci-url]
+  [![Windows Build][appveyor-image]][appveyor-url]
+  [![Test Coverage][coveralls-image]][coveralls-url]
+
+The Express.js project welcomes all constructive contributions. Contributions take many forms,
+from code for bug fixes and enhancements, to additions and fixes to documentation, additional
+tests, triaging incoming pull requests and issues, and more!
+
+See the [Contributing Guide](Contributing.md) for more technical details on contributing.
+
+### Security Issues
+
+If you discover a security vulnerability in Express, please see [Security Policies and Procedures](Security.md).
+
+### Running Tests
+
+To run the test suite, first install the dependencies, then run `npm test`:
+
+```console
+$ npm install
+$ npm test
+```
+
+## People
+
+The original author of Express is [TJ Holowaychuk](https://github.com/tj)
+
+[List of all contributors](https://github.com/expressjs/express/graphs/contributors)
+
+### TC (Technical Committee)
+
+* [UlisesGascon](https://github.com/UlisesGascon) - **Ulises Gascón** (he/him)
+* [jonchurch](https://github.com/jonchurch) - **Jon Church**
+* [wesleytodd](https://github.com/wesleytodd) - **Wes Todd**
+* [LinusU](https://github.com/LinusU) - **Linus Unnebäck**
+* [blakeembrey](https://github.com/blakeembrey) - **Blake Embrey**
+* [sheplu](https://github.com/sheplu) - **Jean Burellier**
+* [crandmck](https://github.com/crandmck) - **Rand McKinney**
+* [ctcpip](https://github.com/ctcpip) - **Chris de Almeida**
+
+<details>
+<summary>TC emeriti members</summary>
+
+#### TC emeriti members
+
+  * [dougwilson](https://github.com/dougwilson) - **Douglas Wilson**
+  * [hacksparrow](https://github.com/hacksparrow) - **Hage Yaapa**
+  * [jonathanong](https://github.com/jonathanong) - **jongleberry**
+  * [niftylettuce](https://github.com/niftylettuce) - **niftylettuce**
+  * [troygoode](https://github.com/troygoode) - **Troy Goode**
+</details>
+
+
+### Triagers
+
+* [aravindvnair99](https://github.com/aravindvnair99) - **Aravind Nair**
+* [carpasse](https://github.com/carpasse) - **Carlos Serrano**
+* [CBID2](https://github.com/CBID2) - **Christine Belzie**
+* [enyoghasim](https://github.com/enyoghasim) - **David Enyoghasim**
+* [UlisesGascon](https://github.com/UlisesGascon) - **Ulises Gascón** (he/him)
+* [mertcanaltin](https://github.com/mertcanaltin) - **Mert Can Altin**
+* [0ss](https://github.com/0ss) - **Salah**
+* [import-brain](https://github.com/import-brain) - **Eric Cheng** (he/him)
+* [3imed-jaberi](https://github.com/3imed-jaberi) - **Imed Jaberi**
+* [dakshkhetan](https://github.com/dakshkhetan) - **Daksh Khetan** (he/him)
+* [lucasraziel](https://github.com/lucasraziel) - **Lucas Soares Do Rego**
+* [IamLizu](https://github.com/IamLizu) - **S M Mahmudul Hasan** (he/him)
+* [Sushmeet](https://github.com/Sushmeet) - **Sushmeet Sunger**
+
+<details>
+<summary>Triagers emeriti members</summary>
+
+#### Emeritus Triagers
+
+  * [AuggieH](https://github.com/AuggieH) - **Auggie Hudak**
+  * [G-Rath](https://github.com/G-Rath) - **Gareth Jones**
+  * [MohammadXroid](https://github.com/MohammadXroid) - **Mohammad Ayashi**
+  * [NawafSwe](https://github.com/NawafSwe) - **Nawaf Alsharqi**
+  * [NotMoni](https://github.com/NotMoni) - **Moni**
+  * [VigneshMurugan](https://github.com/VigneshMurugan) - **Vignesh Murugan**
+  * [davidmashe](https://github.com/davidmashe) - **David Ashe**
+  * [digitaIfabric](https://github.com/digitaIfabric) - **David**
+  * [e-l-i-s-e](https://github.com/e-l-i-s-e) - **Elise Bonner**
+  * [fed135](https://github.com/fed135) - **Frederic Charette**
+  * [firmanJS](https://github.com/firmanJS) - **Firman Abdul Hakim**
+  * [getspooky](https://github.com/getspooky) - **Yasser Ameur**
+  * [ghinks](https://github.com/ghinks) - **Glenn**
+  * [ghousemohamed](https://github.com/ghousemohamed) - **Ghouse Mohamed**
+  * [gireeshpunathil](https://github.com/gireeshpunathil) - **Gireesh Punathil**
+  * [jake32321](https://github.com/jake32321) - **Jake Reed**
+  * [jonchurch](https://github.com/jonchurch) - **Jon Church**
+  * [lekanikotun](https://github.com/lekanikotun) - **Troy Goode**
+  * [marsonya](https://github.com/marsonya) - **Lekan Ikotun**
+  * [mastermatt](https://github.com/mastermatt) - **Matt R. Wilson**
+  * [maxakuru](https://github.com/maxakuru) - **Max Edell**
+  * [mlrawlings](https://github.com/mlrawlings) - **Michael Rawlings**
+  * [rodion-arr](https://github.com/rodion-arr) - **Rodion Abdurakhimov**
+  * [sheplu](https://github.com/sheplu) - **Jean Burellier**
+  * [tarunyadav1](https://github.com/tarunyadav1) - **Tarun yadav**
+  * [tunniclm](https://github.com/tunniclm) - **Mike Tunnicliffe**
+</details>
+
+
+## License
+
+  [MIT](LICENSE)
+
+[appveyor-image]: https://badgen.net/appveyor/ci/dougwilson/express/master?label=windows
+[appveyor-url]: https://ci.appveyor.com/project/dougwilson/express
+[coveralls-image]: https://badgen.net/coveralls/c/github/expressjs/express/master
+[coveralls-url]: https://coveralls.io/r/expressjs/express?branch=master
+[github-actions-ci-image]: https://badgen.net/github/checks/expressjs/express/master?label=linux
+[github-actions-ci-url]: https://github.com/expressjs/express/actions/workflows/ci.yml
+[npm-downloads-image]: https://badgen.net/npm/dm/express
+[npm-downloads-url]: https://npmcharts.com/compare/express?minimal=true
+[npm-install-size-image]: https://badgen.net/packagephobia/install/express
+[npm-install-size-url]: https://packagephobia.com/result?p=express
+[npm-url]: https://npmjs.org/package/express
+[npm-version-image]: https://badgen.net/npm/v/express
+[ossf-scorecard-badge]: https://api.scorecard.dev/projects/github.com/expressjs/express/badge
+[ossf-scorecard-visualizer]: https://ossf.github.io/scorecard-visualizer/#/projects/github.com/expressjs/express
+[Code of Conduct]: https://github.com/expressjs/express/blob/master/Code-Of-Conduct.md
diff --git a/backend/node_modules/express/index.js b/backend/node_modules/express/index.js
new file mode 100644
index 0000000..d219b0c
--- /dev/null
+++ b/backend/node_modules/express/index.js
@@ -0,0 +1,11 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2013 Roman Shtylman
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+module.exports = require('./lib/express');
diff --git a/backend/node_modules/express/lib/application.js b/backend/node_modules/express/lib/application.js
new file mode 100644
index 0000000..ebb30b5
--- /dev/null
+++ b/backend/node_modules/express/lib/application.js
@@ -0,0 +1,661 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2013 Roman Shtylman
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var finalhandler = require('finalhandler');
+var Router = require('./router');
+var methods = require('methods');
+var middleware = require('./middleware/init');
+var query = require('./middleware/query');
+var debug = require('debug')('express:application');
+var View = require('./view');
+var http = require('http');
+var compileETag = require('./utils').compileETag;
+var compileQueryParser = require('./utils').compileQueryParser;
+var compileTrust = require('./utils').compileTrust;
+var deprecate = require('depd')('express');
+var flatten = require('array-flatten');
+var merge = require('utils-merge');
+var resolve = require('path').resolve;
+var setPrototypeOf = require('setprototypeof')
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var hasOwnProperty = Object.prototype.hasOwnProperty
+var slice = Array.prototype.slice;
+
+/**
+ * Application prototype.
+ */
+
+var app = exports = module.exports = {};
+
+/**
+ * Variable for trust proxy inheritance back-compat
+ * @private
+ */
+
+var trustProxyDefaultSymbol = '@@symbol:trust_proxy_default';
+
+/**
+ * Initialize the server.
+ *
+ *   - setup default configuration
+ *   - setup default middleware
+ *   - setup route reflection methods
+ *
+ * @private
+ */
+
+app.init = function init() {
+  this.cache = {};
+  this.engines = {};
+  this.settings = {};
+
+  this.defaultConfiguration();
+};
+
+/**
+ * Initialize application configuration.
+ * @private
+ */
+
+app.defaultConfiguration = function defaultConfiguration() {
+  var env = process.env.NODE_ENV || 'development';
+
+  // default settings
+  this.enable('x-powered-by');
+  this.set('etag', 'weak');
+  this.set('env', env);
+  this.set('query parser', 'extended');
+  this.set('subdomain offset', 2);
+  this.set('trust proxy', false);
+
+  // trust proxy inherit back-compat
+  Object.defineProperty(this.settings, trustProxyDefaultSymbol, {
+    configurable: true,
+    value: true
+  });
+
+  debug('booting in %s mode', env);
+
+  this.on('mount', function onmount(parent) {
+    // inherit trust proxy
+    if (this.settings[trustProxyDefaultSymbol] === true
+      && typeof parent.settings['trust proxy fn'] === 'function') {
+      delete this.settings['trust proxy'];
+      delete this.settings['trust proxy fn'];
+    }
+
+    // inherit protos
+    setPrototypeOf(this.request, parent.request)
+    setPrototypeOf(this.response, parent.response)
+    setPrototypeOf(this.engines, parent.engines)
+    setPrototypeOf(this.settings, parent.settings)
+  });
+
+  // setup locals
+  this.locals = Object.create(null);
+
+  // top-most app is mounted at /
+  this.mountpath = '/';
+
+  // default locals
+  this.locals.settings = this.settings;
+
+  // default configuration
+  this.set('view', View);
+  this.set('views', resolve('views'));
+  this.set('jsonp callback name', 'callback');
+
+  if (env === 'production') {
+    this.enable('view cache');
+  }
+
+  Object.defineProperty(this, 'router', {
+    get: function() {
+      throw new Error('\'app.router\' is deprecated!\nPlease see the 3.x to 4.x migration guide for details on how to update your app.');
+    }
+  });
+};
+
+/**
+ * lazily adds the base router if it has not yet been added.
+ *
+ * We cannot add the base router in the defaultConfiguration because
+ * it reads app settings which might be set after that has run.
+ *
+ * @private
+ */
+app.lazyrouter = function lazyrouter() {
+  if (!this._router) {
+    this._router = new Router({
+      caseSensitive: this.enabled('case sensitive routing'),
+      strict: this.enabled('strict routing')
+    });
+
+    this._router.use(query(this.get('query parser fn')));
+    this._router.use(middleware.init(this));
+  }
+};
+
+/**
+ * Dispatch a req, res pair into the application. Starts pipeline processing.
+ *
+ * If no callback is provided, then default error handlers will respond
+ * in the event of an error bubbling through the stack.
+ *
+ * @private
+ */
+
+app.handle = function handle(req, res, callback) {
+  var router = this._router;
+
+  // final handler
+  var done = callback || finalhandler(req, res, {
+    env: this.get('env'),
+    onerror: logerror.bind(this)
+  });
+
+  // no routes
+  if (!router) {
+    debug('no routes defined on app');
+    done();
+    return;
+  }
+
+  router.handle(req, res, done);
+};
+
+/**
+ * Proxy `Router#use()` to add middleware to the app router.
+ * See Router#use() documentation for details.
+ *
+ * If the _fn_ parameter is an express app, then it will be
+ * mounted at the _route_ specified.
+ *
+ * @public
+ */
+
+app.use = function use(fn) {
+  var offset = 0;
+  var path = '/';
+
+  // default path to '/'
+  // disambiguate app.use([fn])
+  if (typeof fn !== 'function') {
+    var arg = fn;
+
+    while (Array.isArray(arg) && arg.length !== 0) {
+      arg = arg[0];
+    }
+
+    // first arg is the path
+    if (typeof arg !== 'function') {
+      offset = 1;
+      path = fn;
+    }
+  }
+
+  var fns = flatten(slice.call(arguments, offset));
+
+  if (fns.length === 0) {
+    throw new TypeError('app.use() requires a middleware function')
+  }
+
+  // setup router
+  this.lazyrouter();
+  var router = this._router;
+
+  fns.forEach(function (fn) {
+    // non-express app
+    if (!fn || !fn.handle || !fn.set) {
+      return router.use(path, fn);
+    }
+
+    debug('.use app under %s', path);
+    fn.mountpath = path;
+    fn.parent = this;
+
+    // restore .app property on req and res
+    router.use(path, function mounted_app(req, res, next) {
+      var orig = req.app;
+      fn.handle(req, res, function (err) {
+        setPrototypeOf(req, orig.request)
+        setPrototypeOf(res, orig.response)
+        next(err);
+      });
+    });
+
+    // mounted an app
+    fn.emit('mount', this);
+  }, this);
+
+  return this;
+};
+
+/**
+ * Proxy to the app `Router#route()`
+ * Returns a new `Route` instance for the _path_.
+ *
+ * Routes are isolated middleware stacks for specific paths.
+ * See the Route api docs for details.
+ *
+ * @public
+ */
+
+app.route = function route(path) {
+  this.lazyrouter();
+  return this._router.route(path);
+};
+
+/**
+ * Register the given template engine callback `fn`
+ * as `ext`.
+ *
+ * By default will `require()` the engine based on the
+ * file extension. For example if you try to render
+ * a "foo.ejs" file Express will invoke the following internally:
+ *
+ *     app.engine('ejs', require('ejs').__express);
+ *
+ * For engines that do not provide `.__express` out of the box,
+ * or if you wish to "map" a different extension to the template engine
+ * you may use this method. For example mapping the EJS template engine to
+ * ".html" files:
+ *
+ *     app.engine('html', require('ejs').renderFile);
+ *
+ * In this case EJS provides a `.renderFile()` method with
+ * the same signature that Express expects: `(path, options, callback)`,
+ * though note that it aliases this method as `ejs.__express` internally
+ * so if you're using ".ejs" extensions you don't need to do anything.
+ *
+ * Some template engines do not follow this convention, the
+ * [Consolidate.js](https://github.com/tj/consolidate.js)
+ * library was created to map all of node's popular template
+ * engines to follow this convention, thus allowing them to
+ * work seamlessly within Express.
+ *
+ * @param {String} ext
+ * @param {Function} fn
+ * @return {app} for chaining
+ * @public
+ */
+
+app.engine = function engine(ext, fn) {
+  if (typeof fn !== 'function') {
+    throw new Error('callback function required');
+  }
+
+  // get file extension
+  var extension = ext[0] !== '.'
+    ? '.' + ext
+    : ext;
+
+  // store engine
+  this.engines[extension] = fn;
+
+  return this;
+};
+
+/**
+ * Proxy to `Router#param()` with one added api feature. The _name_ parameter
+ * can be an array of names.
+ *
+ * See the Router#param() docs for more details.
+ *
+ * @param {String|Array} name
+ * @param {Function} fn
+ * @return {app} for chaining
+ * @public
+ */
+
+app.param = function param(name, fn) {
+  this.lazyrouter();
+
+  if (Array.isArray(name)) {
+    for (var i = 0; i < name.length; i++) {
+      this.param(name[i], fn);
+    }
+
+    return this;
+  }
+
+  this._router.param(name, fn);
+
+  return this;
+};
+
+/**
+ * Assign `setting` to `val`, or return `setting`'s value.
+ *
+ *    app.set('foo', 'bar');
+ *    app.set('foo');
+ *    // => "bar"
+ *
+ * Mounted servers inherit their parent server's settings.
+ *
+ * @param {String} setting
+ * @param {*} [val]
+ * @return {Server} for chaining
+ * @public
+ */
+
+app.set = function set(setting, val) {
+  if (arguments.length === 1) {
+    // app.get(setting)
+    var settings = this.settings
+
+    while (settings && settings !== Object.prototype) {
+      if (hasOwnProperty.call(settings, setting)) {
+        return settings[setting]
+      }
+
+      settings = Object.getPrototypeOf(settings)
+    }
+
+    return undefined
+  }
+
+  debug('set "%s" to %o', setting, val);
+
+  // set value
+  this.settings[setting] = val;
+
+  // trigger matched settings
+  switch (setting) {
+    case 'etag':
+      this.set('etag fn', compileETag(val));
+      break;
+    case 'query parser':
+      this.set('query parser fn', compileQueryParser(val));
+      break;
+    case 'trust proxy':
+      this.set('trust proxy fn', compileTrust(val));
+
+      // trust proxy inherit back-compat
+      Object.defineProperty(this.settings, trustProxyDefaultSymbol, {
+        configurable: true,
+        value: false
+      });
+
+      break;
+  }
+
+  return this;
+};
+
+/**
+ * Return the app's absolute pathname
+ * based on the parent(s) that have
+ * mounted it.
+ *
+ * For example if the application was
+ * mounted as "/admin", which itself
+ * was mounted as "/blog" then the
+ * return value would be "/blog/admin".
+ *
+ * @return {String}
+ * @private
+ */
+
+app.path = function path() {
+  return this.parent
+    ? this.parent.path() + this.mountpath
+    : '';
+};
+
+/**
+ * Check if `setting` is enabled (truthy).
+ *
+ *    app.enabled('foo')
+ *    // => false
+ *
+ *    app.enable('foo')
+ *    app.enabled('foo')
+ *    // => true
+ *
+ * @param {String} setting
+ * @return {Boolean}
+ * @public
+ */
+
+app.enabled = function enabled(setting) {
+  return Boolean(this.set(setting));
+};
+
+/**
+ * Check if `setting` is disabled.
+ *
+ *    app.disabled('foo')
+ *    // => true
+ *
+ *    app.enable('foo')
+ *    app.disabled('foo')
+ *    // => false
+ *
+ * @param {String} setting
+ * @return {Boolean}
+ * @public
+ */
+
+app.disabled = function disabled(setting) {
+  return !this.set(setting);
+};
+
+/**
+ * Enable `setting`.
+ *
+ * @param {String} setting
+ * @return {app} for chaining
+ * @public
+ */
+
+app.enable = function enable(setting) {
+  return this.set(setting, true);
+};
+
+/**
+ * Disable `setting`.
+ *
+ * @param {String} setting
+ * @return {app} for chaining
+ * @public
+ */
+
+app.disable = function disable(setting) {
+  return this.set(setting, false);
+};
+
+/**
+ * Delegate `.VERB(...)` calls to `router.VERB(...)`.
+ */
+
+methods.forEach(function(method){
+  app[method] = function(path){
+    if (method === 'get' && arguments.length === 1) {
+      // app.get(setting)
+      return this.set(path);
+    }
+
+    this.lazyrouter();
+
+    var route = this._router.route(path);
+    route[method].apply(route, slice.call(arguments, 1));
+    return this;
+  };
+});
+
+/**
+ * Special-cased "all" method, applying the given route `path`,
+ * middleware, and callback to _every_ HTTP method.
+ *
+ * @param {String} path
+ * @param {Function} ...
+ * @return {app} for chaining
+ * @public
+ */
+
+app.all = function all(path) {
+  this.lazyrouter();
+
+  var route = this._router.route(path);
+  var args = slice.call(arguments, 1);
+
+  for (var i = 0; i < methods.length; i++) {
+    route[methods[i]].apply(route, args);
+  }
+
+  return this;
+};
+
+// del -> delete alias
+
+app.del = deprecate.function(app.delete, 'app.del: Use app.delete instead');
+
+/**
+ * Render the given view `name` name with `options`
+ * and a callback accepting an error and the
+ * rendered template string.
+ *
+ * Example:
+ *
+ *    app.render('email', { name: 'Tobi' }, function(err, html){
+ *      // ...
+ *    })
+ *
+ * @param {String} name
+ * @param {Object|Function} options or fn
+ * @param {Function} callback
+ * @public
+ */
+
+app.render = function render(name, options, callback) {
+  var cache = this.cache;
+  var done = callback;
+  var engines = this.engines;
+  var opts = options;
+  var renderOptions = {};
+  var view;
+
+  // support callback function as second arg
+  if (typeof options === 'function') {
+    done = options;
+    opts = {};
+  }
+
+  // merge app.locals
+  merge(renderOptions, this.locals);
+
+  // merge options._locals
+  if (opts._locals) {
+    merge(renderOptions, opts._locals);
+  }
+
+  // merge options
+  merge(renderOptions, opts);
+
+  // set .cache unless explicitly provided
+  if (renderOptions.cache == null) {
+    renderOptions.cache = this.enabled('view cache');
+  }
+
+  // primed cache
+  if (renderOptions.cache) {
+    view = cache[name];
+  }
+
+  // view
+  if (!view) {
+    var View = this.get('view');
+
+    view = new View(name, {
+      defaultEngine: this.get('view engine'),
+      root: this.get('views'),
+      engines: engines
+    });
+
+    if (!view.path) {
+      var dirs = Array.isArray(view.root) && view.root.length > 1
+        ? 'directories "' + view.root.slice(0, -1).join('", "') + '" or "' + view.root[view.root.length - 1] + '"'
+        : 'directory "' + view.root + '"'
+      var err = new Error('Failed to lookup view "' + name + '" in views ' + dirs);
+      err.view = view;
+      return done(err);
+    }
+
+    // prime the cache
+    if (renderOptions.cache) {
+      cache[name] = view;
+    }
+  }
+
+  // render
+  tryRender(view, renderOptions, done);
+};
+
+/**
+ * Listen for connections.
+ *
+ * A node `http.Server` is returned, with this
+ * application (which is a `Function`) as its
+ * callback. If you wish to create both an HTTP
+ * and HTTPS server you may do so with the "http"
+ * and "https" modules as shown here:
+ *
+ *    var http = require('http')
+ *      , https = require('https')
+ *      , express = require('express')
+ *      , app = express();
+ *
+ *    http.createServer(app).listen(80);
+ *    https.createServer({ ... }, app).listen(443);
+ *
+ * @return {http.Server}
+ * @public
+ */
+
+app.listen = function listen() {
+  var server = http.createServer(this);
+  return server.listen.apply(server, arguments);
+};
+
+/**
+ * Log error using console.error.
+ *
+ * @param {Error} err
+ * @private
+ */
+
+function logerror(err) {
+  /* istanbul ignore next */
+  if (this.get('env') !== 'test') console.error(err.stack || err.toString());
+}
+
+/**
+ * Try rendering a view.
+ * @private
+ */
+
+function tryRender(view, options, callback) {
+  try {
+    view.render(options, callback);
+  } catch (err) {
+    callback(err);
+  }
+}
diff --git a/backend/node_modules/express/lib/express.js b/backend/node_modules/express/lib/express.js
new file mode 100644
index 0000000..d188a16
--- /dev/null
+++ b/backend/node_modules/express/lib/express.js
@@ -0,0 +1,116 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2013 Roman Shtylman
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ */
+
+var bodyParser = require('body-parser')
+var EventEmitter = require('events').EventEmitter;
+var mixin = require('merge-descriptors');
+var proto = require('./application');
+var Route = require('./router/route');
+var Router = require('./router');
+var req = require('./request');
+var res = require('./response');
+
+/**
+ * Expose `createApplication()`.
+ */
+
+exports = module.exports = createApplication;
+
+/**
+ * Create an express application.
+ *
+ * @return {Function}
+ * @api public
+ */
+
+function createApplication() {
+  var app = function(req, res, next) {
+    app.handle(req, res, next);
+  };
+
+  mixin(app, EventEmitter.prototype, false);
+  mixin(app, proto, false);
+
+  // expose the prototype that will get set on requests
+  app.request = Object.create(req, {
+    app: { configurable: true, enumerable: true, writable: true, value: app }
+  })
+
+  // expose the prototype that will get set on responses
+  app.response = Object.create(res, {
+    app: { configurable: true, enumerable: true, writable: true, value: app }
+  })
+
+  app.init();
+  return app;
+}
+
+/**
+ * Expose the prototypes.
+ */
+
+exports.application = proto;
+exports.request = req;
+exports.response = res;
+
+/**
+ * Expose constructors.
+ */
+
+exports.Route = Route;
+exports.Router = Router;
+
+/**
+ * Expose middleware
+ */
+
+exports.json = bodyParser.json
+exports.query = require('./middleware/query');
+exports.raw = bodyParser.raw
+exports.static = require('serve-static');
+exports.text = bodyParser.text
+exports.urlencoded = bodyParser.urlencoded
+
+/**
+ * Replace removed middleware with an appropriate error message.
+ */
+
+var removedMiddlewares = [
+  'bodyParser',
+  'compress',
+  'cookieSession',
+  'session',
+  'logger',
+  'cookieParser',
+  'favicon',
+  'responseTime',
+  'errorHandler',
+  'timeout',
+  'methodOverride',
+  'vhost',
+  'csrf',
+  'directory',
+  'limit',
+  'multipart',
+  'staticCache'
+]
+
+removedMiddlewares.forEach(function (name) {
+  Object.defineProperty(exports, name, {
+    get: function () {
+      throw new Error('Most middleware (like ' + name + ') is no longer bundled with Express and must be installed separately. Please see https://github.com/senchalabs/connect#middleware.');
+    },
+    configurable: true
+  });
+});
diff --git a/backend/node_modules/express/lib/middleware/init.js b/backend/node_modules/express/lib/middleware/init.js
new file mode 100644
index 0000000..dfd0427
--- /dev/null
+++ b/backend/node_modules/express/lib/middleware/init.js
@@ -0,0 +1,43 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2013 Roman Shtylman
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var setPrototypeOf = require('setprototypeof')
+
+/**
+ * Initialization middleware, exposing the
+ * request and response to each other, as well
+ * as defaulting the X-Powered-By header field.
+ *
+ * @param {Function} app
+ * @return {Function}
+ * @api private
+ */
+
+exports.init = function(app){
+  return function expressInit(req, res, next){
+    if (app.enabled('x-powered-by')) res.setHeader('X-Powered-By', 'Express');
+    req.res = res;
+    res.req = req;
+    req.next = next;
+
+    setPrototypeOf(req, app.request)
+    setPrototypeOf(res, app.response)
+
+    res.locals = res.locals || Object.create(null);
+
+    next();
+  };
+};
+
diff --git a/backend/node_modules/express/lib/middleware/query.js b/backend/node_modules/express/lib/middleware/query.js
new file mode 100644
index 0000000..7e91669
--- /dev/null
+++ b/backend/node_modules/express/lib/middleware/query.js
@@ -0,0 +1,47 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2013 Roman Shtylman
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ */
+
+var merge = require('utils-merge')
+var parseUrl = require('parseurl');
+var qs = require('qs');
+
+/**
+ * @param {Object} options
+ * @return {Function}
+ * @api public
+ */
+
+module.exports = function query(options) {
+  var opts = merge({}, options)
+  var queryparse = qs.parse;
+
+  if (typeof options === 'function') {
+    queryparse = options;
+    opts = undefined;
+  }
+
+  if (opts !== undefined && opts.allowPrototypes === undefined) {
+    // back-compat for qs module
+    opts.allowPrototypes = true;
+  }
+
+  return function query(req, res, next){
+    if (!req.query) {
+      var val = parseUrl(req).query;
+      req.query = queryparse(val, opts);
+    }
+
+    next();
+  };
+};
diff --git a/backend/node_modules/express/lib/request.js b/backend/node_modules/express/lib/request.js
new file mode 100644
index 0000000..3f1eeca
--- /dev/null
+++ b/backend/node_modules/express/lib/request.js
@@ -0,0 +1,525 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2013 Roman Shtylman
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var accepts = require('accepts');
+var deprecate = require('depd')('express');
+var isIP = require('net').isIP;
+var typeis = require('type-is');
+var http = require('http');
+var fresh = require('fresh');
+var parseRange = require('range-parser');
+var parse = require('parseurl');
+var proxyaddr = require('proxy-addr');
+
+/**
+ * Request prototype.
+ * @public
+ */
+
+var req = Object.create(http.IncomingMessage.prototype)
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = req
+
+/**
+ * Return request header.
+ *
+ * The `Referrer` header field is special-cased,
+ * both `Referrer` and `Referer` are interchangeable.
+ *
+ * Examples:
+ *
+ *     req.get('Content-Type');
+ *     // => "text/plain"
+ *
+ *     req.get('content-type');
+ *     // => "text/plain"
+ *
+ *     req.get('Something');
+ *     // => undefined
+ *
+ * Aliased as `req.header()`.
+ *
+ * @param {String} name
+ * @return {String}
+ * @public
+ */
+
+req.get =
+req.header = function header(name) {
+  if (!name) {
+    throw new TypeError('name argument is required to req.get');
+  }
+
+  if (typeof name !== 'string') {
+    throw new TypeError('name must be a string to req.get');
+  }
+
+  var lc = name.toLowerCase();
+
+  switch (lc) {
+    case 'referer':
+    case 'referrer':
+      return this.headers.referrer
+        || this.headers.referer;
+    default:
+      return this.headers[lc];
+  }
+};
+
+/**
+ * To do: update docs.
+ *
+ * Check if the given `type(s)` is acceptable, returning
+ * the best match when true, otherwise `undefined`, in which
+ * case you should respond with 406 "Not Acceptable".
+ *
+ * The `type` value may be a single MIME type string
+ * such as "application/json", an extension name
+ * such as "json", a comma-delimited list such as "json, html, text/plain",
+ * an argument list such as `"json", "html", "text/plain"`,
+ * or an array `["json", "html", "text/plain"]`. When a list
+ * or array is given, the _best_ match, if any is returned.
+ *
+ * Examples:
+ *
+ *     // Accept: text/html
+ *     req.accepts('html');
+ *     // => "html"
+ *
+ *     // Accept: text/*, application/json
+ *     req.accepts('html');
+ *     // => "html"
+ *     req.accepts('text/html');
+ *     // => "text/html"
+ *     req.accepts('json, text');
+ *     // => "json"
+ *     req.accepts('application/json');
+ *     // => "application/json"
+ *
+ *     // Accept: text/*, application/json
+ *     req.accepts('image/png');
+ *     req.accepts('png');
+ *     // => undefined
+ *
+ *     // Accept: text/*;q=.5, application/json
+ *     req.accepts(['html', 'json']);
+ *     req.accepts('html', 'json');
+ *     req.accepts('html, json');
+ *     // => "json"
+ *
+ * @param {String|Array} type(s)
+ * @return {String|Array|Boolean}
+ * @public
+ */
+
+req.accepts = function(){
+  var accept = accepts(this);
+  return accept.types.apply(accept, arguments);
+};
+
+/**
+ * Check if the given `encoding`s are accepted.
+ *
+ * @param {String} ...encoding
+ * @return {String|Array}
+ * @public
+ */
+
+req.acceptsEncodings = function(){
+  var accept = accepts(this);
+  return accept.encodings.apply(accept, arguments);
+};
+
+req.acceptsEncoding = deprecate.function(req.acceptsEncodings,
+  'req.acceptsEncoding: Use acceptsEncodings instead');
+
+/**
+ * Check if the given `charset`s are acceptable,
+ * otherwise you should respond with 406 "Not Acceptable".
+ *
+ * @param {String} ...charset
+ * @return {String|Array}
+ * @public
+ */
+
+req.acceptsCharsets = function(){
+  var accept = accepts(this);
+  return accept.charsets.apply(accept, arguments);
+};
+
+req.acceptsCharset = deprecate.function(req.acceptsCharsets,
+  'req.acceptsCharset: Use acceptsCharsets instead');
+
+/**
+ * Check if the given `lang`s are acceptable,
+ * otherwise you should respond with 406 "Not Acceptable".
+ *
+ * @param {String} ...lang
+ * @return {String|Array}
+ * @public
+ */
+
+req.acceptsLanguages = function(){
+  var accept = accepts(this);
+  return accept.languages.apply(accept, arguments);
+};
+
+req.acceptsLanguage = deprecate.function(req.acceptsLanguages,
+  'req.acceptsLanguage: Use acceptsLanguages instead');
+
+/**
+ * Parse Range header field, capping to the given `size`.
+ *
+ * Unspecified ranges such as "0-" require knowledge of your resource length. In
+ * the case of a byte range this is of course the total number of bytes. If the
+ * Range header field is not given `undefined` is returned, `-1` when unsatisfiable,
+ * and `-2` when syntactically invalid.
+ *
+ * When ranges are returned, the array has a "type" property which is the type of
+ * range that is required (most commonly, "bytes"). Each array element is an object
+ * with a "start" and "end" property for the portion of the range.
+ *
+ * The "combine" option can be set to `true` and overlapping & adjacent ranges
+ * will be combined into a single range.
+ *
+ * NOTE: remember that ranges are inclusive, so for example "Range: users=0-3"
+ * should respond with 4 users when available, not 3.
+ *
+ * @param {number} size
+ * @param {object} [options]
+ * @param {boolean} [options.combine=false]
+ * @return {number|array}
+ * @public
+ */
+
+req.range = function range(size, options) {
+  var range = this.get('Range');
+  if (!range) return;
+  return parseRange(size, range, options);
+};
+
+/**
+ * Return the value of param `name` when present or `defaultValue`.
+ *
+ *  - Checks route placeholders, ex: _/user/:id_
+ *  - Checks body params, ex: id=12, {"id":12}
+ *  - Checks query string params, ex: ?id=12
+ *
+ * To utilize request bodies, `req.body`
+ * should be an object. This can be done by using
+ * the `bodyParser()` middleware.
+ *
+ * @param {String} name
+ * @param {Mixed} [defaultValue]
+ * @return {String}
+ * @public
+ */
+
+req.param = function param(name, defaultValue) {
+  var params = this.params || {};
+  var body = this.body || {};
+  var query = this.query || {};
+
+  var args = arguments.length === 1
+    ? 'name'
+    : 'name, default';
+  deprecate('req.param(' + args + '): Use req.params, req.body, or req.query instead');
+
+  if (null != params[name] && params.hasOwnProperty(name)) return params[name];
+  if (null != body[name]) return body[name];
+  if (null != query[name]) return query[name];
+
+  return defaultValue;
+};
+
+/**
+ * Check if the incoming request contains the "Content-Type"
+ * header field, and it contains the given mime `type`.
+ *
+ * Examples:
+ *
+ *      // With Content-Type: text/html; charset=utf-8
+ *      req.is('html');
+ *      req.is('text/html');
+ *      req.is('text/*');
+ *      // => true
+ *
+ *      // When Content-Type is application/json
+ *      req.is('json');
+ *      req.is('application/json');
+ *      req.is('application/*');
+ *      // => true
+ *
+ *      req.is('html');
+ *      // => false
+ *
+ * @param {String|Array} types...
+ * @return {String|false|null}
+ * @public
+ */
+
+req.is = function is(types) {
+  var arr = types;
+
+  // support flattened arguments
+  if (!Array.isArray(types)) {
+    arr = new Array(arguments.length);
+    for (var i = 0; i < arr.length; i++) {
+      arr[i] = arguments[i];
+    }
+  }
+
+  return typeis(this, arr);
+};
+
+/**
+ * Return the protocol string "http" or "https"
+ * when requested with TLS. When the "trust proxy"
+ * setting trusts the socket address, the
+ * "X-Forwarded-Proto" header field will be trusted
+ * and used if present.
+ *
+ * If you're running behind a reverse proxy that
+ * supplies https for you this may be enabled.
+ *
+ * @return {String}
+ * @public
+ */
+
+defineGetter(req, 'protocol', function protocol(){
+  var proto = this.connection.encrypted
+    ? 'https'
+    : 'http';
+  var trust = this.app.get('trust proxy fn');
+
+  if (!trust(this.connection.remoteAddress, 0)) {
+    return proto;
+  }
+
+  // Note: X-Forwarded-Proto is normally only ever a
+  //       single value, but this is to be safe.
+  var header = this.get('X-Forwarded-Proto') || proto
+  var index = header.indexOf(',')
+
+  return index !== -1
+    ? header.substring(0, index).trim()
+    : header.trim()
+});
+
+/**
+ * Short-hand for:
+ *
+ *    req.protocol === 'https'
+ *
+ * @return {Boolean}
+ * @public
+ */
+
+defineGetter(req, 'secure', function secure(){
+  return this.protocol === 'https';
+});
+
+/**
+ * Return the remote address from the trusted proxy.
+ *
+ * The is the remote address on the socket unless
+ * "trust proxy" is set.
+ *
+ * @return {String}
+ * @public
+ */
+
+defineGetter(req, 'ip', function ip(){
+  var trust = this.app.get('trust proxy fn');
+  return proxyaddr(this, trust);
+});
+
+/**
+ * When "trust proxy" is set, trusted proxy addresses + client.
+ *
+ * For example if the value were "client, proxy1, proxy2"
+ * you would receive the array `["client", "proxy1", "proxy2"]`
+ * where "proxy2" is the furthest down-stream and "proxy1" and
+ * "proxy2" were trusted.
+ *
+ * @return {Array}
+ * @public
+ */
+
+defineGetter(req, 'ips', function ips() {
+  var trust = this.app.get('trust proxy fn');
+  var addrs = proxyaddr.all(this, trust);
+
+  // reverse the order (to farthest -> closest)
+  // and remove socket address
+  addrs.reverse().pop()
+
+  return addrs
+});
+
+/**
+ * Return subdomains as an array.
+ *
+ * Subdomains are the dot-separated parts of the host before the main domain of
+ * the app. By default, the domain of the app is assumed to be the last two
+ * parts of the host. This can be changed by setting "subdomain offset".
+ *
+ * For example, if the domain is "tobi.ferrets.example.com":
+ * If "subdomain offset" is not set, req.subdomains is `["ferrets", "tobi"]`.
+ * If "subdomain offset" is 3, req.subdomains is `["tobi"]`.
+ *
+ * @return {Array}
+ * @public
+ */
+
+defineGetter(req, 'subdomains', function subdomains() {
+  var hostname = this.hostname;
+
+  if (!hostname) return [];
+
+  var offset = this.app.get('subdomain offset');
+  var subdomains = !isIP(hostname)
+    ? hostname.split('.').reverse()
+    : [hostname];
+
+  return subdomains.slice(offset);
+});
+
+/**
+ * Short-hand for `url.parse(req.url).pathname`.
+ *
+ * @return {String}
+ * @public
+ */
+
+defineGetter(req, 'path', function path() {
+  return parse(this).pathname;
+});
+
+/**
+ * Parse the "Host" header field to a hostname.
+ *
+ * When the "trust proxy" setting trusts the socket
+ * address, the "X-Forwarded-Host" header field will
+ * be trusted.
+ *
+ * @return {String}
+ * @public
+ */
+
+defineGetter(req, 'hostname', function hostname(){
+  var trust = this.app.get('trust proxy fn');
+  var host = this.get('X-Forwarded-Host');
+
+  if (!host || !trust(this.connection.remoteAddress, 0)) {
+    host = this.get('Host');
+  } else if (host.indexOf(',') !== -1) {
+    // Note: X-Forwarded-Host is normally only ever a
+    //       single value, but this is to be safe.
+    host = host.substring(0, host.indexOf(',')).trimRight()
+  }
+
+  if (!host) return;
+
+  // IPv6 literal support
+  var offset = host[0] === '['
+    ? host.indexOf(']') + 1
+    : 0;
+  var index = host.indexOf(':', offset);
+
+  return index !== -1
+    ? host.substring(0, index)
+    : host;
+});
+
+// TODO: change req.host to return host in next major
+
+defineGetter(req, 'host', deprecate.function(function host(){
+  return this.hostname;
+}, 'req.host: Use req.hostname instead'));
+
+/**
+ * Check if the request is fresh, aka
+ * Last-Modified and/or the ETag
+ * still match.
+ *
+ * @return {Boolean}
+ * @public
+ */
+
+defineGetter(req, 'fresh', function(){
+  var method = this.method;
+  var res = this.res
+  var status = res.statusCode
+
+  // GET or HEAD for weak freshness validation only
+  if ('GET' !== method && 'HEAD' !== method) return false;
+
+  // 2xx or 304 as per rfc2616 14.26
+  if ((status >= 200 && status < 300) || 304 === status) {
+    return fresh(this.headers, {
+      'etag': res.get('ETag'),
+      'last-modified': res.get('Last-Modified')
+    })
+  }
+
+  return false;
+});
+
+/**
+ * Check if the request is stale, aka
+ * "Last-Modified" and / or the "ETag" for the
+ * resource has changed.
+ *
+ * @return {Boolean}
+ * @public
+ */
+
+defineGetter(req, 'stale', function stale(){
+  return !this.fresh;
+});
+
+/**
+ * Check if the request was an _XMLHttpRequest_.
+ *
+ * @return {Boolean}
+ * @public
+ */
+
+defineGetter(req, 'xhr', function xhr(){
+  var val = this.get('X-Requested-With') || '';
+  return val.toLowerCase() === 'xmlhttprequest';
+});
+
+/**
+ * Helper function for creating a getter on an object.
+ *
+ * @param {Object} obj
+ * @param {String} name
+ * @param {Function} getter
+ * @private
+ */
+function defineGetter(obj, name, getter) {
+  Object.defineProperty(obj, name, {
+    configurable: true,
+    enumerable: true,
+    get: getter
+  });
+}
diff --git a/backend/node_modules/express/lib/response.js b/backend/node_modules/express/lib/response.js
new file mode 100644
index 0000000..2b654f4
--- /dev/null
+++ b/backend/node_modules/express/lib/response.js
@@ -0,0 +1,1179 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var Buffer = require('safe-buffer').Buffer
+var contentDisposition = require('content-disposition');
+var createError = require('http-errors')
+var deprecate = require('depd')('express');
+var encodeUrl = require('encodeurl');
+var escapeHtml = require('escape-html');
+var http = require('http');
+var isAbsolute = require('./utils').isAbsolute;
+var onFinished = require('on-finished');
+var path = require('path');
+var statuses = require('statuses')
+var merge = require('utils-merge');
+var sign = require('cookie-signature').sign;
+var normalizeType = require('./utils').normalizeType;
+var normalizeTypes = require('./utils').normalizeTypes;
+var setCharset = require('./utils').setCharset;
+var cookie = require('cookie');
+var send = require('send');
+var extname = path.extname;
+var mime = send.mime;
+var resolve = path.resolve;
+var vary = require('vary');
+
+/**
+ * Response prototype.
+ * @public
+ */
+
+var res = Object.create(http.ServerResponse.prototype)
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = res
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var charsetRegExp = /;\s*charset\s*=/;
+
+/**
+ * Set status `code`.
+ *
+ * @param {Number} code
+ * @return {ServerResponse}
+ * @public
+ */
+
+res.status = function status(code) {
+  if ((typeof code === 'string' || Math.floor(code) !== code) && code > 99 && code < 1000) {
+    deprecate('res.status(' + JSON.stringify(code) + '): use res.status(' + Math.floor(code) + ') instead')
+  }
+  this.statusCode = code;
+  return this;
+};
+
+/**
+ * Set Link header field with the given `links`.
+ *
+ * Examples:
+ *
+ *    res.links({
+ *      next: 'http://api.example.com/users?page=2',
+ *      last: 'http://api.example.com/users?page=5'
+ *    });
+ *
+ * @param {Object} links
+ * @return {ServerResponse}
+ * @public
+ */
+
+res.links = function(links){
+  var link = this.get('Link') || '';
+  if (link) link += ', ';
+  return this.set('Link', link + Object.keys(links).map(function(rel){
+    return '<' + links[rel] + '>; rel="' + rel + '"';
+  }).join(', '));
+};
+
+/**
+ * Send a response.
+ *
+ * Examples:
+ *
+ *     res.send(Buffer.from('wahoo'));
+ *     res.send({ some: 'json' });
+ *     res.send('<p>some html</p>');
+ *
+ * @param {string|number|boolean|object|Buffer} body
+ * @public
+ */
+
+res.send = function send(body) {
+  var chunk = body;
+  var encoding;
+  var req = this.req;
+  var type;
+
+  // settings
+  var app = this.app;
+
+  // allow status / body
+  if (arguments.length === 2) {
+    // res.send(body, status) backwards compat
+    if (typeof arguments[0] !== 'number' && typeof arguments[1] === 'number') {
+      deprecate('res.send(body, status): Use res.status(status).send(body) instead');
+      this.statusCode = arguments[1];
+    } else {
+      deprecate('res.send(status, body): Use res.status(status).send(body) instead');
+      this.statusCode = arguments[0];
+      chunk = arguments[1];
+    }
+  }
+
+  // disambiguate res.send(status) and res.send(status, num)
+  if (typeof chunk === 'number' && arguments.length === 1) {
+    // res.send(status) will set status message as text string
+    if (!this.get('Content-Type')) {
+      this.type('txt');
+    }
+
+    deprecate('res.send(status): Use res.sendStatus(status) instead');
+    this.statusCode = chunk;
+    chunk = statuses.message[chunk]
+  }
+
+  switch (typeof chunk) {
+    // string defaulting to html
+    case 'string':
+      if (!this.get('Content-Type')) {
+        this.type('html');
+      }
+      break;
+    case 'boolean':
+    case 'number':
+    case 'object':
+      if (chunk === null) {
+        chunk = '';
+      } else if (Buffer.isBuffer(chunk)) {
+        if (!this.get('Content-Type')) {
+          this.type('bin');
+        }
+      } else {
+        return this.json(chunk);
+      }
+      break;
+  }
+
+  // write strings in utf-8
+  if (typeof chunk === 'string') {
+    encoding = 'utf8';
+    type = this.get('Content-Type');
+
+    // reflect this in content-type
+    if (typeof type === 'string') {
+      this.set('Content-Type', setCharset(type, 'utf-8'));
+    }
+  }
+
+  // determine if ETag should be generated
+  var etagFn = app.get('etag fn')
+  var generateETag = !this.get('ETag') && typeof etagFn === 'function'
+
+  // populate Content-Length
+  var len
+  if (chunk !== undefined) {
+    if (Buffer.isBuffer(chunk)) {
+      // get length of Buffer
+      len = chunk.length
+    } else if (!generateETag && chunk.length < 1000) {
+      // just calculate length when no ETag + small chunk
+      len = Buffer.byteLength(chunk, encoding)
+    } else {
+      // convert chunk to Buffer and calculate
+      chunk = Buffer.from(chunk, encoding)
+      encoding = undefined;
+      len = chunk.length
+    }
+
+    this.set('Content-Length', len);
+  }
+
+  // populate ETag
+  var etag;
+  if (generateETag && len !== undefined) {
+    if ((etag = etagFn(chunk, encoding))) {
+      this.set('ETag', etag);
+    }
+  }
+
+  // freshness
+  if (req.fresh) this.statusCode = 304;
+
+  // strip irrelevant headers
+  if (204 === this.statusCode || 304 === this.statusCode) {
+    this.removeHeader('Content-Type');
+    this.removeHeader('Content-Length');
+    this.removeHeader('Transfer-Encoding');
+    chunk = '';
+  }
+
+  // alter headers for 205
+  if (this.statusCode === 205) {
+    this.set('Content-Length', '0')
+    this.removeHeader('Transfer-Encoding')
+    chunk = ''
+  }
+
+  if (req.method === 'HEAD') {
+    // skip body for HEAD
+    this.end();
+  } else {
+    // respond
+    this.end(chunk, encoding);
+  }
+
+  return this;
+};
+
+/**
+ * Send JSON response.
+ *
+ * Examples:
+ *
+ *     res.json(null);
+ *     res.json({ user: 'tj' });
+ *
+ * @param {string|number|boolean|object} obj
+ * @public
+ */
+
+res.json = function json(obj) {
+  var val = obj;
+
+  // allow status / body
+  if (arguments.length === 2) {
+    // res.json(body, status) backwards compat
+    if (typeof arguments[1] === 'number') {
+      deprecate('res.json(obj, status): Use res.status(status).json(obj) instead');
+      this.statusCode = arguments[1];
+    } else {
+      deprecate('res.json(status, obj): Use res.status(status).json(obj) instead');
+      this.statusCode = arguments[0];
+      val = arguments[1];
+    }
+  }
+
+  // settings
+  var app = this.app;
+  var escape = app.get('json escape')
+  var replacer = app.get('json replacer');
+  var spaces = app.get('json spaces');
+  var body = stringify(val, replacer, spaces, escape)
+
+  // content-type
+  if (!this.get('Content-Type')) {
+    this.set('Content-Type', 'application/json');
+  }
+
+  return this.send(body);
+};
+
+/**
+ * Send JSON response with JSONP callback support.
+ *
+ * Examples:
+ *
+ *     res.jsonp(null);
+ *     res.jsonp({ user: 'tj' });
+ *
+ * @param {string|number|boolean|object} obj
+ * @public
+ */
+
+res.jsonp = function jsonp(obj) {
+  var val = obj;
+
+  // allow status / body
+  if (arguments.length === 2) {
+    // res.jsonp(body, status) backwards compat
+    if (typeof arguments[1] === 'number') {
+      deprecate('res.jsonp(obj, status): Use res.status(status).jsonp(obj) instead');
+      this.statusCode = arguments[1];
+    } else {
+      deprecate('res.jsonp(status, obj): Use res.status(status).jsonp(obj) instead');
+      this.statusCode = arguments[0];
+      val = arguments[1];
+    }
+  }
+
+  // settings
+  var app = this.app;
+  var escape = app.get('json escape')
+  var replacer = app.get('json replacer');
+  var spaces = app.get('json spaces');
+  var body = stringify(val, replacer, spaces, escape)
+  var callback = this.req.query[app.get('jsonp callback name')];
+
+  // content-type
+  if (!this.get('Content-Type')) {
+    this.set('X-Content-Type-Options', 'nosniff');
+    this.set('Content-Type', 'application/json');
+  }
+
+  // fixup callback
+  if (Array.isArray(callback)) {
+    callback = callback[0];
+  }
+
+  // jsonp
+  if (typeof callback === 'string' && callback.length !== 0) {
+    this.set('X-Content-Type-Options', 'nosniff');
+    this.set('Content-Type', 'text/javascript');
+
+    // restrict callback charset
+    callback = callback.replace(/[^\[\]\w$.]/g, '');
+
+    if (body === undefined) {
+      // empty argument
+      body = ''
+    } else if (typeof body === 'string') {
+      // replace chars not allowed in JavaScript that are in JSON
+      body = body
+        .replace(/\u2028/g, '\\u2028')
+        .replace(/\u2029/g, '\\u2029')
+    }
+
+    // the /**/ is a specific security mitigation for "Rosetta Flash JSONP abuse"
+    // the typeof check is just to reduce client error noise
+    body = '/**/ typeof ' + callback + ' === \'function\' && ' + callback + '(' + body + ');';
+  }
+
+  return this.send(body);
+};
+
+/**
+ * Send given HTTP status code.
+ *
+ * Sets the response status to `statusCode` and the body of the
+ * response to the standard description from node's http.STATUS_CODES
+ * or the statusCode number if no description.
+ *
+ * Examples:
+ *
+ *     res.sendStatus(200);
+ *
+ * @param {number} statusCode
+ * @public
+ */
+
+res.sendStatus = function sendStatus(statusCode) {
+  var body = statuses.message[statusCode] || String(statusCode)
+
+  this.statusCode = statusCode;
+  this.type('txt');
+
+  return this.send(body);
+};
+
+/**
+ * Transfer the file at the given `path`.
+ *
+ * Automatically sets the _Content-Type_ response header field.
+ * The callback `callback(err)` is invoked when the transfer is complete
+ * or when an error occurs. Be sure to check `res.headersSent`
+ * if you wish to attempt responding, as the header and some data
+ * may have already been transferred.
+ *
+ * Options:
+ *
+ *   - `maxAge`   defaulting to 0 (can be string converted by `ms`)
+ *   - `root`     root directory for relative filenames
+ *   - `headers`  object of headers to serve with file
+ *   - `dotfiles` serve dotfiles, defaulting to false; can be `"allow"` to send them
+ *
+ * Other options are passed along to `send`.
+ *
+ * Examples:
+ *
+ *  The following example illustrates how `res.sendFile()` may
+ *  be used as an alternative for the `static()` middleware for
+ *  dynamic situations. The code backing `res.sendFile()` is actually
+ *  the same code, so HTTP cache support etc is identical.
+ *
+ *     app.get('/user/:uid/photos/:file', function(req, res){
+ *       var uid = req.params.uid
+ *         , file = req.params.file;
+ *
+ *       req.user.mayViewFilesFrom(uid, function(yes){
+ *         if (yes) {
+ *           res.sendFile('/uploads/' + uid + '/' + file);
+ *         } else {
+ *           res.send(403, 'Sorry! you cant see that.');
+ *         }
+ *       });
+ *     });
+ *
+ * @public
+ */
+
+res.sendFile = function sendFile(path, options, callback) {
+  var done = callback;
+  var req = this.req;
+  var res = this;
+  var next = req.next;
+  var opts = options || {};
+
+  if (!path) {
+    throw new TypeError('path argument is required to res.sendFile');
+  }
+
+  if (typeof path !== 'string') {
+    throw new TypeError('path must be a string to res.sendFile')
+  }
+
+  // support function as second arg
+  if (typeof options === 'function') {
+    done = options;
+    opts = {};
+  }
+
+  if (!opts.root && !isAbsolute(path)) {
+    throw new TypeError('path must be absolute or specify root to res.sendFile');
+  }
+
+  // create file stream
+  var pathname = encodeURI(path);
+  var file = send(req, pathname, opts);
+
+  // transfer
+  sendfile(res, file, opts, function (err) {
+    if (done) return done(err);
+    if (err && err.code === 'EISDIR') return next();
+
+    // next() all but write errors
+    if (err && err.code !== 'ECONNABORTED' && err.syscall !== 'write') {
+      next(err);
+    }
+  });
+};
+
+/**
+ * Transfer the file at the given `path`.
+ *
+ * Automatically sets the _Content-Type_ response header field.
+ * The callback `callback(err)` is invoked when the transfer is complete
+ * or when an error occurs. Be sure to check `res.headersSent`
+ * if you wish to attempt responding, as the header and some data
+ * may have already been transferred.
+ *
+ * Options:
+ *
+ *   - `maxAge`   defaulting to 0 (can be string converted by `ms`)
+ *   - `root`     root directory for relative filenames
+ *   - `headers`  object of headers to serve with file
+ *   - `dotfiles` serve dotfiles, defaulting to false; can be `"allow"` to send them
+ *
+ * Other options are passed along to `send`.
+ *
+ * Examples:
+ *
+ *  The following example illustrates how `res.sendfile()` may
+ *  be used as an alternative for the `static()` middleware for
+ *  dynamic situations. The code backing `res.sendfile()` is actually
+ *  the same code, so HTTP cache support etc is identical.
+ *
+ *     app.get('/user/:uid/photos/:file', function(req, res){
+ *       var uid = req.params.uid
+ *         , file = req.params.file;
+ *
+ *       req.user.mayViewFilesFrom(uid, function(yes){
+ *         if (yes) {
+ *           res.sendfile('/uploads/' + uid + '/' + file);
+ *         } else {
+ *           res.send(403, 'Sorry! you cant see that.');
+ *         }
+ *       });
+ *     });
+ *
+ * @public
+ */
+
+res.sendfile = function (path, options, callback) {
+  var done = callback;
+  var req = this.req;
+  var res = this;
+  var next = req.next;
+  var opts = options || {};
+
+  // support function as second arg
+  if (typeof options === 'function') {
+    done = options;
+    opts = {};
+  }
+
+  // create file stream
+  var file = send(req, path, opts);
+
+  // transfer
+  sendfile(res, file, opts, function (err) {
+    if (done) return done(err);
+    if (err && err.code === 'EISDIR') return next();
+
+    // next() all but write errors
+    if (err && err.code !== 'ECONNABORTED' && err.syscall !== 'write') {
+      next(err);
+    }
+  });
+};
+
+res.sendfile = deprecate.function(res.sendfile,
+  'res.sendfile: Use res.sendFile instead');
+
+/**
+ * Transfer the file at the given `path` as an attachment.
+ *
+ * Optionally providing an alternate attachment `filename`,
+ * and optional callback `callback(err)`. The callback is invoked
+ * when the data transfer is complete, or when an error has
+ * occurred. Be sure to check `res.headersSent` if you plan to respond.
+ *
+ * Optionally providing an `options` object to use with `res.sendFile()`.
+ * This function will set the `Content-Disposition` header, overriding
+ * any `Content-Disposition` header passed as header options in order
+ * to set the attachment and filename.
+ *
+ * This method uses `res.sendFile()`.
+ *
+ * @public
+ */
+
+res.download = function download (path, filename, options, callback) {
+  var done = callback;
+  var name = filename;
+  var opts = options || null
+
+  // support function as second or third arg
+  if (typeof filename === 'function') {
+    done = filename;
+    name = null;
+    opts = null
+  } else if (typeof options === 'function') {
+    done = options
+    opts = null
+  }
+
+  // support optional filename, where options may be in it's place
+  if (typeof filename === 'object' &&
+    (typeof options === 'function' || options === undefined)) {
+    name = null
+    opts = filename
+  }
+
+  // set Content-Disposition when file is sent
+  var headers = {
+    'Content-Disposition': contentDisposition(name || path)
+  };
+
+  // merge user-provided headers
+  if (opts && opts.headers) {
+    var keys = Object.keys(opts.headers)
+    for (var i = 0; i < keys.length; i++) {
+      var key = keys[i]
+      if (key.toLowerCase() !== 'content-disposition') {
+        headers[key] = opts.headers[key]
+      }
+    }
+  }
+
+  // merge user-provided options
+  opts = Object.create(opts)
+  opts.headers = headers
+
+  // Resolve the full path for sendFile
+  var fullPath = !opts.root
+    ? resolve(path)
+    : path
+
+  // send file
+  return this.sendFile(fullPath, opts, done)
+};
+
+/**
+ * Set _Content-Type_ response header with `type` through `mime.lookup()`
+ * when it does not contain "/", or set the Content-Type to `type` otherwise.
+ *
+ * Examples:
+ *
+ *     res.type('.html');
+ *     res.type('html');
+ *     res.type('json');
+ *     res.type('application/json');
+ *     res.type('png');
+ *
+ * @param {String} type
+ * @return {ServerResponse} for chaining
+ * @public
+ */
+
+res.contentType =
+res.type = function contentType(type) {
+  var ct = type.indexOf('/') === -1
+    ? mime.lookup(type)
+    : type;
+
+  return this.set('Content-Type', ct);
+};
+
+/**
+ * Respond to the Acceptable formats using an `obj`
+ * of mime-type callbacks.
+ *
+ * This method uses `req.accepted`, an array of
+ * acceptable types ordered by their quality values.
+ * When "Accept" is not present the _first_ callback
+ * is invoked, otherwise the first match is used. When
+ * no match is performed the server responds with
+ * 406 "Not Acceptable".
+ *
+ * Content-Type is set for you, however if you choose
+ * you may alter this within the callback using `res.type()`
+ * or `res.set('Content-Type', ...)`.
+ *
+ *    res.format({
+ *      'text/plain': function(){
+ *        res.send('hey');
+ *      },
+ *
+ *      'text/html': function(){
+ *        res.send('<p>hey</p>');
+ *      },
+ *
+ *      'application/json': function () {
+ *        res.send({ message: 'hey' });
+ *      }
+ *    });
+ *
+ * In addition to canonicalized MIME types you may
+ * also use extnames mapped to these types:
+ *
+ *    res.format({
+ *      text: function(){
+ *        res.send('hey');
+ *      },
+ *
+ *      html: function(){
+ *        res.send('<p>hey</p>');
+ *      },
+ *
+ *      json: function(){
+ *        res.send({ message: 'hey' });
+ *      }
+ *    });
+ *
+ * By default Express passes an `Error`
+ * with a `.status` of 406 to `next(err)`
+ * if a match is not made. If you provide
+ * a `.default` callback it will be invoked
+ * instead.
+ *
+ * @param {Object} obj
+ * @return {ServerResponse} for chaining
+ * @public
+ */
+
+res.format = function(obj){
+  var req = this.req;
+  var next = req.next;
+
+  var keys = Object.keys(obj)
+    .filter(function (v) { return v !== 'default' })
+
+  var key = keys.length > 0
+    ? req.accepts(keys)
+    : false;
+
+  this.vary("Accept");
+
+  if (key) {
+    this.set('Content-Type', normalizeType(key).value);
+    obj[key](req, this, next);
+  } else if (obj.default) {
+    obj.default(req, this, next)
+  } else {
+    next(createError(406, {
+      types: normalizeTypes(keys).map(function (o) { return o.value })
+    }))
+  }
+
+  return this;
+};
+
+/**
+ * Set _Content-Disposition_ header to _attachment_ with optional `filename`.
+ *
+ * @param {String} filename
+ * @return {ServerResponse}
+ * @public
+ */
+
+res.attachment = function attachment(filename) {
+  if (filename) {
+    this.type(extname(filename));
+  }
+
+  this.set('Content-Disposition', contentDisposition(filename));
+
+  return this;
+};
+
+/**
+ * Append additional header `field` with value `val`.
+ *
+ * Example:
+ *
+ *    res.append('Link', ['<http://localhost/>', '<http://localhost:3000/>']);
+ *    res.append('Set-Cookie', 'foo=bar; Path=/; HttpOnly');
+ *    res.append('Warning', '199 Miscellaneous warning');
+ *
+ * @param {String} field
+ * @param {String|Array} val
+ * @return {ServerResponse} for chaining
+ * @public
+ */
+
+res.append = function append(field, val) {
+  var prev = this.get(field);
+  var value = val;
+
+  if (prev) {
+    // concat the new and prev vals
+    value = Array.isArray(prev) ? prev.concat(val)
+      : Array.isArray(val) ? [prev].concat(val)
+        : [prev, val]
+  }
+
+  return this.set(field, value);
+};
+
+/**
+ * Set header `field` to `val`, or pass
+ * an object of header fields.
+ *
+ * Examples:
+ *
+ *    res.set('Foo', ['bar', 'baz']);
+ *    res.set('Accept', 'application/json');
+ *    res.set({ Accept: 'text/plain', 'X-API-Key': 'tobi' });
+ *
+ * Aliased as `res.header()`.
+ *
+ * @param {String|Object} field
+ * @param {String|Array} val
+ * @return {ServerResponse} for chaining
+ * @public
+ */
+
+res.set =
+res.header = function header(field, val) {
+  if (arguments.length === 2) {
+    var value = Array.isArray(val)
+      ? val.map(String)
+      : String(val);
+
+    // add charset to content-type
+    if (field.toLowerCase() === 'content-type') {
+      if (Array.isArray(value)) {
+        throw new TypeError('Content-Type cannot be set to an Array');
+      }
+      if (!charsetRegExp.test(value)) {
+        var charset = mime.charsets.lookup(value.split(';')[0]);
+        if (charset) value += '; charset=' + charset.toLowerCase();
+      }
+    }
+
+    this.setHeader(field, value);
+  } else {
+    for (var key in field) {
+      this.set(key, field[key]);
+    }
+  }
+  return this;
+};
+
+/**
+ * Get value for header `field`.
+ *
+ * @param {String} field
+ * @return {String}
+ * @public
+ */
+
+res.get = function(field){
+  return this.getHeader(field);
+};
+
+/**
+ * Clear cookie `name`.
+ *
+ * @param {String} name
+ * @param {Object} [options]
+ * @return {ServerResponse} for chaining
+ * @public
+ */
+
+res.clearCookie = function clearCookie(name, options) {
+  if (options) {
+    if (options.maxAge) {
+      deprecate('res.clearCookie: Passing "options.maxAge" is deprecated. In v5.0.0 of Express, this option will be ignored, as res.clearCookie will automatically set cookies to expire immediately. Please update your code to omit this option.');
+    }
+    if (options.expires) {
+      deprecate('res.clearCookie: Passing "options.expires" is deprecated. In v5.0.0 of Express, this option will be ignored, as res.clearCookie will automatically set cookies to expire immediately. Please update your code to omit this option.');
+    }
+  }
+  var opts = merge({ expires: new Date(1), path: '/' }, options);
+
+  return this.cookie(name, '', opts);
+};
+
+/**
+ * Set cookie `name` to `value`, with the given `options`.
+ *
+ * Options:
+ *
+ *    - `maxAge`   max-age in milliseconds, converted to `expires`
+ *    - `signed`   sign the cookie
+ *    - `path`     defaults to "/"
+ *
+ * Examples:
+ *
+ *    // "Remember Me" for 15 minutes
+ *    res.cookie('rememberme', '1', { expires: new Date(Date.now() + 900000), httpOnly: true });
+ *
+ *    // same as above
+ *    res.cookie('rememberme', '1', { maxAge: 900000, httpOnly: true })
+ *
+ * @param {String} name
+ * @param {String|Object} value
+ * @param {Object} [options]
+ * @return {ServerResponse} for chaining
+ * @public
+ */
+
+res.cookie = function (name, value, options) {
+  var opts = merge({}, options);
+  var secret = this.req.secret;
+  var signed = opts.signed;
+
+  if (signed && !secret) {
+    throw new Error('cookieParser("secret") required for signed cookies');
+  }
+
+  var val = typeof value === 'object'
+    ? 'j:' + JSON.stringify(value)
+    : String(value);
+
+  if (signed) {
+    val = 's:' + sign(val, secret);
+  }
+
+  if (opts.maxAge != null) {
+    var maxAge = opts.maxAge - 0
+
+    if (!isNaN(maxAge)) {
+      opts.expires = new Date(Date.now() + maxAge)
+      opts.maxAge = Math.floor(maxAge / 1000)
+    }
+  }
+
+  if (opts.path == null) {
+    opts.path = '/';
+  }
+
+  this.append('Set-Cookie', cookie.serialize(name, String(val), opts));
+
+  return this;
+};
+
+/**
+ * Set the location header to `url`.
+ *
+ * The given `url` can also be "back", which redirects
+ * to the _Referrer_ or _Referer_ headers or "/".
+ *
+ * Examples:
+ *
+ *    res.location('/foo/bar').;
+ *    res.location('http://example.com');
+ *    res.location('../login');
+ *
+ * @param {String} url
+ * @return {ServerResponse} for chaining
+ * @public
+ */
+
+res.location = function location(url) {
+  var loc;
+
+  // "back" is an alias for the referrer
+  if (url === 'back') {
+    deprecate('res.location("back"): use res.location(req.get("Referrer") || "/") and refer to https://dub.sh/security-redirect for best practices');
+    loc = this.req.get('Referrer') || '/';
+  } else {
+    loc = String(url);
+  }
+
+  return this.set('Location', encodeUrl(loc));
+};
+
+/**
+ * Redirect to the given `url` with optional response `status`
+ * defaulting to 302.
+ *
+ * The resulting `url` is determined by `res.location()`, so
+ * it will play nicely with mounted apps, relative paths,
+ * `"back"` etc.
+ *
+ * Examples:
+ *
+ *    res.redirect('/foo/bar');
+ *    res.redirect('http://example.com');
+ *    res.redirect(301, 'http://example.com');
+ *    res.redirect('../login'); // /blog/post/1 -> /blog/login
+ *
+ * @public
+ */
+
+res.redirect = function redirect(url) {
+  var address = url;
+  var body;
+  var status = 302;
+
+  // allow status / url
+  if (arguments.length === 2) {
+    if (typeof arguments[0] === 'number') {
+      status = arguments[0];
+      address = arguments[1];
+    } else {
+      deprecate('res.redirect(url, status): Use res.redirect(status, url) instead');
+      status = arguments[1];
+    }
+  }
+
+  // Set location header
+  address = this.location(address).get('Location');
+
+  // Support text/{plain,html} by default
+  this.format({
+    text: function(){
+      body = statuses.message[status] + '. Redirecting to ' + address
+    },
+
+    html: function(){
+      var u = escapeHtml(address);
+      body = '<p>' + statuses.message[status] + '. Redirecting to ' + u + '</p>'
+    },
+
+    default: function(){
+      body = '';
+    }
+  });
+
+  // Respond
+  this.statusCode = status;
+  this.set('Content-Length', Buffer.byteLength(body));
+
+  if (this.req.method === 'HEAD') {
+    this.end();
+  } else {
+    this.end(body);
+  }
+};
+
+/**
+ * Add `field` to Vary. If already present in the Vary set, then
+ * this call is simply ignored.
+ *
+ * @param {Array|String} field
+ * @return {ServerResponse} for chaining
+ * @public
+ */
+
+res.vary = function(field){
+  // checks for back-compat
+  if (!field || (Array.isArray(field) && !field.length)) {
+    deprecate('res.vary(): Provide a field name');
+    return this;
+  }
+
+  vary(this, field);
+
+  return this;
+};
+
+/**
+ * Render `view` with the given `options` and optional callback `fn`.
+ * When a callback function is given a response will _not_ be made
+ * automatically, otherwise a response of _200_ and _text/html_ is given.
+ *
+ * Options:
+ *
+ *  - `cache`     boolean hinting to the engine it should cache
+ *  - `filename`  filename of the view being rendered
+ *
+ * @public
+ */
+
+res.render = function render(view, options, callback) {
+  var app = this.req.app;
+  var done = callback;
+  var opts = options || {};
+  var req = this.req;
+  var self = this;
+
+  // support callback function as second arg
+  if (typeof options === 'function') {
+    done = options;
+    opts = {};
+  }
+
+  // merge res.locals
+  opts._locals = self.locals;
+
+  // default callback to respond
+  done = done || function (err, str) {
+    if (err) return req.next(err);
+    self.send(str);
+  };
+
+  // render
+  app.render(view, opts, done);
+};
+
+// pipe the send file stream
+function sendfile(res, file, options, callback) {
+  var done = false;
+  var streaming;
+
+  // request aborted
+  function onaborted() {
+    if (done) return;
+    done = true;
+
+    var err = new Error('Request aborted');
+    err.code = 'ECONNABORTED';
+    callback(err);
+  }
+
+  // directory
+  function ondirectory() {
+    if (done) return;
+    done = true;
+
+    var err = new Error('EISDIR, read');
+    err.code = 'EISDIR';
+    callback(err);
+  }
+
+  // errors
+  function onerror(err) {
+    if (done) return;
+    done = true;
+    callback(err);
+  }
+
+  // ended
+  function onend() {
+    if (done) return;
+    done = true;
+    callback();
+  }
+
+  // file
+  function onfile() {
+    streaming = false;
+  }
+
+  // finished
+  function onfinish(err) {
+    if (err && err.code === 'ECONNRESET') return onaborted();
+    if (err) return onerror(err);
+    if (done) return;
+
+    setImmediate(function () {
+      if (streaming !== false && !done) {
+        onaborted();
+        return;
+      }
+
+      if (done) return;
+      done = true;
+      callback();
+    });
+  }
+
+  // streaming
+  function onstream() {
+    streaming = true;
+  }
+
+  file.on('directory', ondirectory);
+  file.on('end', onend);
+  file.on('error', onerror);
+  file.on('file', onfile);
+  file.on('stream', onstream);
+  onFinished(res, onfinish);
+
+  if (options.headers) {
+    // set headers on successful transfer
+    file.on('headers', function headers(res) {
+      var obj = options.headers;
+      var keys = Object.keys(obj);
+
+      for (var i = 0; i < keys.length; i++) {
+        var k = keys[i];
+        res.setHeader(k, obj[k]);
+      }
+    });
+  }
+
+  // pipe
+  file.pipe(res);
+}
+
+/**
+ * Stringify JSON, like JSON.stringify, but v8 optimized, with the
+ * ability to escape characters that can trigger HTML sniffing.
+ *
+ * @param {*} value
+ * @param {function} replacer
+ * @param {number} spaces
+ * @param {boolean} escape
+ * @returns {string}
+ * @private
+ */
+
+function stringify (value, replacer, spaces, escape) {
+  // v8 checks arguments.length for optimizing simple call
+  // https://bugs.chromium.org/p/v8/issues/detail?id=4730
+  var json = replacer || spaces
+    ? JSON.stringify(value, replacer, spaces)
+    : JSON.stringify(value);
+
+  if (escape && typeof json === 'string') {
+    json = json.replace(/[<>&]/g, function (c) {
+      switch (c.charCodeAt(0)) {
+        case 0x3c:
+          return '\\u003c'
+        case 0x3e:
+          return '\\u003e'
+        case 0x26:
+          return '\\u0026'
+        /* istanbul ignore next: unreachable default */
+        default:
+          return c
+      }
+    })
+  }
+
+  return json
+}
diff --git a/backend/node_modules/express/lib/router/index.js b/backend/node_modules/express/lib/router/index.js
new file mode 100644
index 0000000..abb3a6f
--- /dev/null
+++ b/backend/node_modules/express/lib/router/index.js
@@ -0,0 +1,673 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2013 Roman Shtylman
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var Route = require('./route');
+var Layer = require('./layer');
+var methods = require('methods');
+var mixin = require('utils-merge');
+var debug = require('debug')('express:router');
+var deprecate = require('depd')('express');
+var flatten = require('array-flatten');
+var parseUrl = require('parseurl');
+var setPrototypeOf = require('setprototypeof')
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var objectRegExp = /^\[object (\S+)\]$/;
+var slice = Array.prototype.slice;
+var toString = Object.prototype.toString;
+
+/**
+ * Initialize a new `Router` with the given `options`.
+ *
+ * @param {Object} [options]
+ * @return {Router} which is a callable function
+ * @public
+ */
+
+var proto = module.exports = function(options) {
+  var opts = options || {};
+
+  function router(req, res, next) {
+    router.handle(req, res, next);
+  }
+
+  // mixin Router class functions
+  setPrototypeOf(router, proto)
+
+  router.params = {};
+  router._params = [];
+  router.caseSensitive = opts.caseSensitive;
+  router.mergeParams = opts.mergeParams;
+  router.strict = opts.strict;
+  router.stack = [];
+
+  return router;
+};
+
+/**
+ * Map the given param placeholder `name`(s) to the given callback.
+ *
+ * Parameter mapping is used to provide pre-conditions to routes
+ * which use normalized placeholders. For example a _:user_id_ parameter
+ * could automatically load a user's information from the database without
+ * any additional code,
+ *
+ * The callback uses the same signature as middleware, the only difference
+ * being that the value of the placeholder is passed, in this case the _id_
+ * of the user. Once the `next()` function is invoked, just like middleware
+ * it will continue on to execute the route, or subsequent parameter functions.
+ *
+ * Just like in middleware, you must either respond to the request or call next
+ * to avoid stalling the request.
+ *
+ *  app.param('user_id', function(req, res, next, id){
+ *    User.find(id, function(err, user){
+ *      if (err) {
+ *        return next(err);
+ *      } else if (!user) {
+ *        return next(new Error('failed to load user'));
+ *      }
+ *      req.user = user;
+ *      next();
+ *    });
+ *  });
+ *
+ * @param {String} name
+ * @param {Function} fn
+ * @return {app} for chaining
+ * @public
+ */
+
+proto.param = function param(name, fn) {
+  // param logic
+  if (typeof name === 'function') {
+    deprecate('router.param(fn): Refactor to use path params');
+    this._params.push(name);
+    return;
+  }
+
+  // apply param functions
+  var params = this._params;
+  var len = params.length;
+  var ret;
+
+  if (name[0] === ':') {
+    deprecate('router.param(' + JSON.stringify(name) + ', fn): Use router.param(' + JSON.stringify(name.slice(1)) + ', fn) instead')
+    name = name.slice(1)
+  }
+
+  for (var i = 0; i < len; ++i) {
+    if (ret = params[i](name, fn)) {
+      fn = ret;
+    }
+  }
+
+  // ensure we end up with a
+  // middleware function
+  if ('function' !== typeof fn) {
+    throw new Error('invalid param() call for ' + name + ', got ' + fn);
+  }
+
+  (this.params[name] = this.params[name] || []).push(fn);
+  return this;
+};
+
+/**
+ * Dispatch a req, res into the router.
+ * @private
+ */
+
+proto.handle = function handle(req, res, out) {
+  var self = this;
+
+  debug('dispatching %s %s', req.method, req.url);
+
+  var idx = 0;
+  var protohost = getProtohost(req.url) || ''
+  var removed = '';
+  var slashAdded = false;
+  var sync = 0
+  var paramcalled = {};
+
+  // store options for OPTIONS request
+  // only used if OPTIONS request
+  var options = [];
+
+  // middleware and routes
+  var stack = self.stack;
+
+  // manage inter-router variables
+  var parentParams = req.params;
+  var parentUrl = req.baseUrl || '';
+  var done = restore(out, req, 'baseUrl', 'next', 'params');
+
+  // setup next layer
+  req.next = next;
+
+  // for options requests, respond with a default if nothing else responds
+  if (req.method === 'OPTIONS') {
+    done = wrap(done, function(old, err) {
+      if (err || options.length === 0) return old(err);
+      sendOptionsResponse(res, options, old);
+    });
+  }
+
+  // setup basic req values
+  req.baseUrl = parentUrl;
+  req.originalUrl = req.originalUrl || req.url;
+
+  next();
+
+  function next(err) {
+    var layerError = err === 'route'
+      ? null
+      : err;
+
+    // remove added slash
+    if (slashAdded) {
+      req.url = req.url.slice(1)
+      slashAdded = false;
+    }
+
+    // restore altered req.url
+    if (removed.length !== 0) {
+      req.baseUrl = parentUrl;
+      req.url = protohost + removed + req.url.slice(protohost.length)
+      removed = '';
+    }
+
+    // signal to exit router
+    if (layerError === 'router') {
+      setImmediate(done, null)
+      return
+    }
+
+    // no more matching layers
+    if (idx >= stack.length) {
+      setImmediate(done, layerError);
+      return;
+    }
+
+    // max sync stack
+    if (++sync > 100) {
+      return setImmediate(next, err)
+    }
+
+    // get pathname of request
+    var path = getPathname(req);
+
+    if (path == null) {
+      return done(layerError);
+    }
+
+    // find next matching layer
+    var layer;
+    var match;
+    var route;
+
+    while (match !== true && idx < stack.length) {
+      layer = stack[idx++];
+      match = matchLayer(layer, path);
+      route = layer.route;
+
+      if (typeof match !== 'boolean') {
+        // hold on to layerError
+        layerError = layerError || match;
+      }
+
+      if (match !== true) {
+        continue;
+      }
+
+      if (!route) {
+        // process non-route handlers normally
+        continue;
+      }
+
+      if (layerError) {
+        // routes do not match with a pending error
+        match = false;
+        continue;
+      }
+
+      var method = req.method;
+      var has_method = route._handles_method(method);
+
+      // build up automatic options response
+      if (!has_method && method === 'OPTIONS') {
+        appendMethods(options, route._options());
+      }
+
+      // don't even bother matching route
+      if (!has_method && method !== 'HEAD') {
+        match = false;
+      }
+    }
+
+    // no match
+    if (match !== true) {
+      return done(layerError);
+    }
+
+    // store route for dispatch on change
+    if (route) {
+      req.route = route;
+    }
+
+    // Capture one-time layer values
+    req.params = self.mergeParams
+      ? mergeParams(layer.params, parentParams)
+      : layer.params;
+    var layerPath = layer.path;
+
+    // this should be done for the layer
+    self.process_params(layer, paramcalled, req, res, function (err) {
+      if (err) {
+        next(layerError || err)
+      } else if (route) {
+        layer.handle_request(req, res, next)
+      } else {
+        trim_prefix(layer, layerError, layerPath, path)
+      }
+
+      sync = 0
+    });
+  }
+
+  function trim_prefix(layer, layerError, layerPath, path) {
+    if (layerPath.length !== 0) {
+      // Validate path is a prefix match
+      if (layerPath !== path.slice(0, layerPath.length)) {
+        next(layerError)
+        return
+      }
+
+      // Validate path breaks on a path separator
+      var c = path[layerPath.length]
+      if (c && c !== '/' && c !== '.') return next(layerError)
+
+      // Trim off the part of the url that matches the route
+      // middleware (.use stuff) needs to have the path stripped
+      debug('trim prefix (%s) from url %s', layerPath, req.url);
+      removed = layerPath;
+      req.url = protohost + req.url.slice(protohost.length + removed.length)
+
+      // Ensure leading slash
+      if (!protohost && req.url[0] !== '/') {
+        req.url = '/' + req.url;
+        slashAdded = true;
+      }
+
+      // Setup base URL (no trailing slash)
+      req.baseUrl = parentUrl + (removed[removed.length - 1] === '/'
+        ? removed.substring(0, removed.length - 1)
+        : removed);
+    }
+
+    debug('%s %s : %s', layer.name, layerPath, req.originalUrl);
+
+    if (layerError) {
+      layer.handle_error(layerError, req, res, next);
+    } else {
+      layer.handle_request(req, res, next);
+    }
+  }
+};
+
+/**
+ * Process any parameters for the layer.
+ * @private
+ */
+
+proto.process_params = function process_params(layer, called, req, res, done) {
+  var params = this.params;
+
+  // captured parameters from the layer, keys and values
+  var keys = layer.keys;
+
+  // fast track
+  if (!keys || keys.length === 0) {
+    return done();
+  }
+
+  var i = 0;
+  var name;
+  var paramIndex = 0;
+  var key;
+  var paramVal;
+  var paramCallbacks;
+  var paramCalled;
+
+  // process params in order
+  // param callbacks can be async
+  function param(err) {
+    if (err) {
+      return done(err);
+    }
+
+    if (i >= keys.length ) {
+      return done();
+    }
+
+    paramIndex = 0;
+    key = keys[i++];
+    name = key.name;
+    paramVal = req.params[name];
+    paramCallbacks = params[name];
+    paramCalled = called[name];
+
+    if (paramVal === undefined || !paramCallbacks) {
+      return param();
+    }
+
+    // param previously called with same value or error occurred
+    if (paramCalled && (paramCalled.match === paramVal
+      || (paramCalled.error && paramCalled.error !== 'route'))) {
+      // restore value
+      req.params[name] = paramCalled.value;
+
+      // next param
+      return param(paramCalled.error);
+    }
+
+    called[name] = paramCalled = {
+      error: null,
+      match: paramVal,
+      value: paramVal
+    };
+
+    paramCallback();
+  }
+
+  // single param callbacks
+  function paramCallback(err) {
+    var fn = paramCallbacks[paramIndex++];
+
+    // store updated value
+    paramCalled.value = req.params[key.name];
+
+    if (err) {
+      // store error
+      paramCalled.error = err;
+      param(err);
+      return;
+    }
+
+    if (!fn) return param();
+
+    try {
+      fn(req, res, paramCallback, paramVal, key.name);
+    } catch (e) {
+      paramCallback(e);
+    }
+  }
+
+  param();
+};
+
+/**
+ * Use the given middleware function, with optional path, defaulting to "/".
+ *
+ * Use (like `.all`) will run for any http METHOD, but it will not add
+ * handlers for those methods so OPTIONS requests will not consider `.use`
+ * functions even if they could respond.
+ *
+ * The other difference is that _route_ path is stripped and not visible
+ * to the handler function. The main effect of this feature is that mounted
+ * handlers can operate without any code changes regardless of the "prefix"
+ * pathname.
+ *
+ * @public
+ */
+
+proto.use = function use(fn) {
+  var offset = 0;
+  var path = '/';
+
+  // default path to '/'
+  // disambiguate router.use([fn])
+  if (typeof fn !== 'function') {
+    var arg = fn;
+
+    while (Array.isArray(arg) && arg.length !== 0) {
+      arg = arg[0];
+    }
+
+    // first arg is the path
+    if (typeof arg !== 'function') {
+      offset = 1;
+      path = fn;
+    }
+  }
+
+  var callbacks = flatten(slice.call(arguments, offset));
+
+  if (callbacks.length === 0) {
+    throw new TypeError('Router.use() requires a middleware function')
+  }
+
+  for (var i = 0; i < callbacks.length; i++) {
+    var fn = callbacks[i];
+
+    if (typeof fn !== 'function') {
+      throw new TypeError('Router.use() requires a middleware function but got a ' + gettype(fn))
+    }
+
+    // add the middleware
+    debug('use %o %s', path, fn.name || '<anonymous>')
+
+    var layer = new Layer(path, {
+      sensitive: this.caseSensitive,
+      strict: false,
+      end: false
+    }, fn);
+
+    layer.route = undefined;
+
+    this.stack.push(layer);
+  }
+
+  return this;
+};
+
+/**
+ * Create a new Route for the given path.
+ *
+ * Each route contains a separate middleware stack and VERB handlers.
+ *
+ * See the Route api documentation for details on adding handlers
+ * and middleware to routes.
+ *
+ * @param {String} path
+ * @return {Route}
+ * @public
+ */
+
+proto.route = function route(path) {
+  var route = new Route(path);
+
+  var layer = new Layer(path, {
+    sensitive: this.caseSensitive,
+    strict: this.strict,
+    end: true
+  }, route.dispatch.bind(route));
+
+  layer.route = route;
+
+  this.stack.push(layer);
+  return route;
+};
+
+// create Router#VERB functions
+methods.concat('all').forEach(function(method){
+  proto[method] = function(path){
+    var route = this.route(path)
+    route[method].apply(route, slice.call(arguments, 1));
+    return this;
+  };
+});
+
+// append methods to a list of methods
+function appendMethods(list, addition) {
+  for (var i = 0; i < addition.length; i++) {
+    var method = addition[i];
+    if (list.indexOf(method) === -1) {
+      list.push(method);
+    }
+  }
+}
+
+// get pathname of request
+function getPathname(req) {
+  try {
+    return parseUrl(req).pathname;
+  } catch (err) {
+    return undefined;
+  }
+}
+
+// Get get protocol + host for a URL
+function getProtohost(url) {
+  if (typeof url !== 'string' || url.length === 0 || url[0] === '/') {
+    return undefined
+  }
+
+  var searchIndex = url.indexOf('?')
+  var pathLength = searchIndex !== -1
+    ? searchIndex
+    : url.length
+  var fqdnIndex = url.slice(0, pathLength).indexOf('://')
+
+  return fqdnIndex !== -1
+    ? url.substring(0, url.indexOf('/', 3 + fqdnIndex))
+    : undefined
+}
+
+// get type for error message
+function gettype(obj) {
+  var type = typeof obj;
+
+  if (type !== 'object') {
+    return type;
+  }
+
+  // inspect [[Class]] for objects
+  return toString.call(obj)
+    .replace(objectRegExp, '$1');
+}
+
+/**
+ * Match path to a layer.
+ *
+ * @param {Layer} layer
+ * @param {string} path
+ * @private
+ */
+
+function matchLayer(layer, path) {
+  try {
+    return layer.match(path);
+  } catch (err) {
+    return err;
+  }
+}
+
+// merge params with parent params
+function mergeParams(params, parent) {
+  if (typeof parent !== 'object' || !parent) {
+    return params;
+  }
+
+  // make copy of parent for base
+  var obj = mixin({}, parent);
+
+  // simple non-numeric merging
+  if (!(0 in params) || !(0 in parent)) {
+    return mixin(obj, params);
+  }
+
+  var i = 0;
+  var o = 0;
+
+  // determine numeric gaps
+  while (i in params) {
+    i++;
+  }
+
+  while (o in parent) {
+    o++;
+  }
+
+  // offset numeric indices in params before merge
+  for (i--; i >= 0; i--) {
+    params[i + o] = params[i];
+
+    // create holes for the merge when necessary
+    if (i < o) {
+      delete params[i];
+    }
+  }
+
+  return mixin(obj, params);
+}
+
+// restore obj props after function
+function restore(fn, obj) {
+  var props = new Array(arguments.length - 2);
+  var vals = new Array(arguments.length - 2);
+
+  for (var i = 0; i < props.length; i++) {
+    props[i] = arguments[i + 2];
+    vals[i] = obj[props[i]];
+  }
+
+  return function () {
+    // restore vals
+    for (var i = 0; i < props.length; i++) {
+      obj[props[i]] = vals[i];
+    }
+
+    return fn.apply(this, arguments);
+  };
+}
+
+// send an OPTIONS response
+function sendOptionsResponse(res, options, next) {
+  try {
+    var body = options.join(',');
+    res.set('Allow', body);
+    res.send(body);
+  } catch (err) {
+    next(err);
+  }
+}
+
+// wrap a function
+function wrap(old, fn) {
+  return function proxy() {
+    var args = new Array(arguments.length + 1);
+
+    args[0] = old;
+    for (var i = 0, len = arguments.length; i < len; i++) {
+      args[i + 1] = arguments[i];
+    }
+
+    fn.apply(this, args);
+  };
+}
diff --git a/backend/node_modules/express/lib/router/layer.js b/backend/node_modules/express/lib/router/layer.js
new file mode 100644
index 0000000..4dc8e86
--- /dev/null
+++ b/backend/node_modules/express/lib/router/layer.js
@@ -0,0 +1,181 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2013 Roman Shtylman
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var pathRegexp = require('path-to-regexp');
+var debug = require('debug')('express:router:layer');
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var hasOwnProperty = Object.prototype.hasOwnProperty;
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = Layer;
+
+function Layer(path, options, fn) {
+  if (!(this instanceof Layer)) {
+    return new Layer(path, options, fn);
+  }
+
+  debug('new %o', path)
+  var opts = options || {};
+
+  this.handle = fn;
+  this.name = fn.name || '<anonymous>';
+  this.params = undefined;
+  this.path = undefined;
+  this.regexp = pathRegexp(path, this.keys = [], opts);
+
+  // set fast path flags
+  this.regexp.fast_star = path === '*'
+  this.regexp.fast_slash = path === '/' && opts.end === false
+}
+
+/**
+ * Handle the error for the layer.
+ *
+ * @param {Error} error
+ * @param {Request} req
+ * @param {Response} res
+ * @param {function} next
+ * @api private
+ */
+
+Layer.prototype.handle_error = function handle_error(error, req, res, next) {
+  var fn = this.handle;
+
+  if (fn.length !== 4) {
+    // not a standard error handler
+    return next(error);
+  }
+
+  try {
+    fn(error, req, res, next);
+  } catch (err) {
+    next(err);
+  }
+};
+
+/**
+ * Handle the request for the layer.
+ *
+ * @param {Request} req
+ * @param {Response} res
+ * @param {function} next
+ * @api private
+ */
+
+Layer.prototype.handle_request = function handle(req, res, next) {
+  var fn = this.handle;
+
+  if (fn.length > 3) {
+    // not a standard request handler
+    return next();
+  }
+
+  try {
+    fn(req, res, next);
+  } catch (err) {
+    next(err);
+  }
+};
+
+/**
+ * Check if this route matches `path`, if so
+ * populate `.params`.
+ *
+ * @param {String} path
+ * @return {Boolean}
+ * @api private
+ */
+
+Layer.prototype.match = function match(path) {
+  var match
+
+  if (path != null) {
+    // fast path non-ending match for / (any path matches)
+    if (this.regexp.fast_slash) {
+      this.params = {}
+      this.path = ''
+      return true
+    }
+
+    // fast path for * (everything matched in a param)
+    if (this.regexp.fast_star) {
+      this.params = {'0': decode_param(path)}
+      this.path = path
+      return true
+    }
+
+    // match the path
+    match = this.regexp.exec(path)
+  }
+
+  if (!match) {
+    this.params = undefined;
+    this.path = undefined;
+    return false;
+  }
+
+  // store values
+  this.params = {};
+  this.path = match[0]
+
+  var keys = this.keys;
+  var params = this.params;
+
+  for (var i = 1; i < match.length; i++) {
+    var key = keys[i - 1];
+    var prop = key.name;
+    var val = decode_param(match[i])
+
+    if (val !== undefined || !(hasOwnProperty.call(params, prop))) {
+      params[prop] = val;
+    }
+  }
+
+  return true;
+};
+
+/**
+ * Decode param value.
+ *
+ * @param {string} val
+ * @return {string}
+ * @private
+ */
+
+function decode_param(val) {
+  if (typeof val !== 'string' || val.length === 0) {
+    return val;
+  }
+
+  try {
+    return decodeURIComponent(val);
+  } catch (err) {
+    if (err instanceof URIError) {
+      err.message = 'Failed to decode param \'' + val + '\'';
+      err.status = err.statusCode = 400;
+    }
+
+    throw err;
+  }
+}
diff --git a/backend/node_modules/express/lib/router/route.js b/backend/node_modules/express/lib/router/route.js
new file mode 100644
index 0000000..a65756d
--- /dev/null
+++ b/backend/node_modules/express/lib/router/route.js
@@ -0,0 +1,230 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2013 Roman Shtylman
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var debug = require('debug')('express:router:route');
+var flatten = require('array-flatten');
+var Layer = require('./layer');
+var methods = require('methods');
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var slice = Array.prototype.slice;
+var toString = Object.prototype.toString;
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = Route;
+
+/**
+ * Initialize `Route` with the given `path`,
+ *
+ * @param {String} path
+ * @public
+ */
+
+function Route(path) {
+  this.path = path;
+  this.stack = [];
+
+  debug('new %o', path)
+
+  // route handlers for various http methods
+  this.methods = {};
+}
+
+/**
+ * Determine if the route handles a given method.
+ * @private
+ */
+
+Route.prototype._handles_method = function _handles_method(method) {
+  if (this.methods._all) {
+    return true;
+  }
+
+  // normalize name
+  var name = typeof method === 'string'
+    ? method.toLowerCase()
+    : method
+
+  if (name === 'head' && !this.methods['head']) {
+    name = 'get';
+  }
+
+  return Boolean(this.methods[name]);
+};
+
+/**
+ * @return {Array} supported HTTP methods
+ * @private
+ */
+
+Route.prototype._options = function _options() {
+  var methods = Object.keys(this.methods);
+
+  // append automatic head
+  if (this.methods.get && !this.methods.head) {
+    methods.push('head');
+  }
+
+  for (var i = 0; i < methods.length; i++) {
+    // make upper case
+    methods[i] = methods[i].toUpperCase();
+  }
+
+  return methods;
+};
+
+/**
+ * dispatch req, res into this route
+ * @private
+ */
+
+Route.prototype.dispatch = function dispatch(req, res, done) {
+  var idx = 0;
+  var stack = this.stack;
+  var sync = 0
+
+  if (stack.length === 0) {
+    return done();
+  }
+  var method = typeof req.method === 'string'
+    ? req.method.toLowerCase()
+    : req.method
+
+  if (method === 'head' && !this.methods['head']) {
+    method = 'get';
+  }
+
+  req.route = this;
+
+  next();
+
+  function next(err) {
+    // signal to exit route
+    if (err && err === 'route') {
+      return done();
+    }
+
+    // signal to exit router
+    if (err && err === 'router') {
+      return done(err)
+    }
+
+    // max sync stack
+    if (++sync > 100) {
+      return setImmediate(next, err)
+    }
+
+    var layer = stack[idx++]
+
+    // end of layers
+    if (!layer) {
+      return done(err)
+    }
+
+    if (layer.method && layer.method !== method) {
+      next(err)
+    } else if (err) {
+      layer.handle_error(err, req, res, next);
+    } else {
+      layer.handle_request(req, res, next);
+    }
+
+    sync = 0
+  }
+};
+
+/**
+ * Add a handler for all HTTP verbs to this route.
+ *
+ * Behaves just like middleware and can respond or call `next`
+ * to continue processing.
+ *
+ * You can use multiple `.all` call to add multiple handlers.
+ *
+ *   function check_something(req, res, next){
+ *     next();
+ *   };
+ *
+ *   function validate_user(req, res, next){
+ *     next();
+ *   };
+ *
+ *   route
+ *   .all(validate_user)
+ *   .all(check_something)
+ *   .get(function(req, res, next){
+ *     res.send('hello world');
+ *   });
+ *
+ * @param {function} handler
+ * @return {Route} for chaining
+ * @api public
+ */
+
+Route.prototype.all = function all() {
+  var handles = flatten(slice.call(arguments));
+
+  for (var i = 0; i < handles.length; i++) {
+    var handle = handles[i];
+
+    if (typeof handle !== 'function') {
+      var type = toString.call(handle);
+      var msg = 'Route.all() requires a callback function but got a ' + type
+      throw new TypeError(msg);
+    }
+
+    var layer = Layer('/', {}, handle);
+    layer.method = undefined;
+
+    this.methods._all = true;
+    this.stack.push(layer);
+  }
+
+  return this;
+};
+
+methods.forEach(function(method){
+  Route.prototype[method] = function(){
+    var handles = flatten(slice.call(arguments));
+
+    for (var i = 0; i < handles.length; i++) {
+      var handle = handles[i];
+
+      if (typeof handle !== 'function') {
+        var type = toString.call(handle);
+        var msg = 'Route.' + method + '() requires a callback function but got a ' + type
+        throw new Error(msg);
+      }
+
+      debug('%s %o', method, this.path)
+
+      var layer = Layer('/', {}, handle);
+      layer.method = method;
+
+      this.methods[method] = true;
+      this.stack.push(layer);
+    }
+
+    return this;
+  };
+});
diff --git a/backend/node_modules/express/lib/utils.js b/backend/node_modules/express/lib/utils.js
new file mode 100644
index 0000000..56e12b9
--- /dev/null
+++ b/backend/node_modules/express/lib/utils.js
@@ -0,0 +1,303 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ * @api private
+ */
+
+var Buffer = require('safe-buffer').Buffer
+var contentDisposition = require('content-disposition');
+var contentType = require('content-type');
+var deprecate = require('depd')('express');
+var flatten = require('array-flatten');
+var mime = require('send').mime;
+var etag = require('etag');
+var proxyaddr = require('proxy-addr');
+var qs = require('qs');
+var querystring = require('querystring');
+
+/**
+ * Return strong ETag for `body`.
+ *
+ * @param {String|Buffer} body
+ * @param {String} [encoding]
+ * @return {String}
+ * @api private
+ */
+
+exports.etag = createETagGenerator({ weak: false })
+
+/**
+ * Return weak ETag for `body`.
+ *
+ * @param {String|Buffer} body
+ * @param {String} [encoding]
+ * @return {String}
+ * @api private
+ */
+
+exports.wetag = createETagGenerator({ weak: true })
+
+/**
+ * Check if `path` looks absolute.
+ *
+ * @param {String} path
+ * @return {Boolean}
+ * @api private
+ */
+
+exports.isAbsolute = function(path){
+  if ('/' === path[0]) return true;
+  if (':' === path[1] && ('\\' === path[2] || '/' === path[2])) return true; // Windows device path
+  if ('\\\\' === path.substring(0, 2)) return true; // Microsoft Azure absolute path
+};
+
+/**
+ * Flatten the given `arr`.
+ *
+ * @param {Array} arr
+ * @return {Array}
+ * @api private
+ */
+
+exports.flatten = deprecate.function(flatten,
+  'utils.flatten: use array-flatten npm module instead');
+
+/**
+ * Normalize the given `type`, for example "html" becomes "text/html".
+ *
+ * @param {String} type
+ * @return {Object}
+ * @api private
+ */
+
+exports.normalizeType = function(type){
+  return ~type.indexOf('/')
+    ? acceptParams(type)
+    : { value: mime.lookup(type), params: {} };
+};
+
+/**
+ * Normalize `types`, for example "html" becomes "text/html".
+ *
+ * @param {Array} types
+ * @return {Array}
+ * @api private
+ */
+
+exports.normalizeTypes = function(types){
+  var ret = [];
+
+  for (var i = 0; i < types.length; ++i) {
+    ret.push(exports.normalizeType(types[i]));
+  }
+
+  return ret;
+};
+
+/**
+ * Generate Content-Disposition header appropriate for the filename.
+ * non-ascii filenames are urlencoded and a filename* parameter is added
+ *
+ * @param {String} filename
+ * @return {String}
+ * @api private
+ */
+
+exports.contentDisposition = deprecate.function(contentDisposition,
+  'utils.contentDisposition: use content-disposition npm module instead');
+
+/**
+ * Parse accept params `str` returning an
+ * object with `.value`, `.quality` and `.params`.
+ *
+ * @param {String} str
+ * @return {Object}
+ * @api private
+ */
+
+function acceptParams (str) {
+  var parts = str.split(/ *; */);
+  var ret = { value: parts[0], quality: 1, params: {} }
+
+  for (var i = 1; i < parts.length; ++i) {
+    var pms = parts[i].split(/ *= */);
+    if ('q' === pms[0]) {
+      ret.quality = parseFloat(pms[1]);
+    } else {
+      ret.params[pms[0]] = pms[1];
+    }
+  }
+
+  return ret;
+}
+
+/**
+ * Compile "etag" value to function.
+ *
+ * @param  {Boolean|String|Function} val
+ * @return {Function}
+ * @api private
+ */
+
+exports.compileETag = function(val) {
+  var fn;
+
+  if (typeof val === 'function') {
+    return val;
+  }
+
+  switch (val) {
+    case true:
+    case 'weak':
+      fn = exports.wetag;
+      break;
+    case false:
+      break;
+    case 'strong':
+      fn = exports.etag;
+      break;
+    default:
+      throw new TypeError('unknown value for etag function: ' + val);
+  }
+
+  return fn;
+}
+
+/**
+ * Compile "query parser" value to function.
+ *
+ * @param  {String|Function} val
+ * @return {Function}
+ * @api private
+ */
+
+exports.compileQueryParser = function compileQueryParser(val) {
+  var fn;
+
+  if (typeof val === 'function') {
+    return val;
+  }
+
+  switch (val) {
+    case true:
+    case 'simple':
+      fn = querystring.parse;
+      break;
+    case false:
+      fn = newObject;
+      break;
+    case 'extended':
+      fn = parseExtendedQueryString;
+      break;
+    default:
+      throw new TypeError('unknown value for query parser function: ' + val);
+  }
+
+  return fn;
+}
+
+/**
+ * Compile "proxy trust" value to function.
+ *
+ * @param  {Boolean|String|Number|Array|Function} val
+ * @return {Function}
+ * @api private
+ */
+
+exports.compileTrust = function(val) {
+  if (typeof val === 'function') return val;
+
+  if (val === true) {
+    // Support plain true/false
+    return function(){ return true };
+  }
+
+  if (typeof val === 'number') {
+    // Support trusting hop count
+    return function(a, i){ return i < val };
+  }
+
+  if (typeof val === 'string') {
+    // Support comma-separated values
+    val = val.split(',')
+      .map(function (v) { return v.trim() })
+  }
+
+  return proxyaddr.compile(val || []);
+}
+
+/**
+ * Set the charset in a given Content-Type string.
+ *
+ * @param {String} type
+ * @param {String} charset
+ * @return {String}
+ * @api private
+ */
+
+exports.setCharset = function setCharset(type, charset) {
+  if (!type || !charset) {
+    return type;
+  }
+
+  // parse type
+  var parsed = contentType.parse(type);
+
+  // set charset
+  parsed.parameters.charset = charset;
+
+  // format type
+  return contentType.format(parsed);
+};
+
+/**
+ * Create an ETag generator function, generating ETags with
+ * the given options.
+ *
+ * @param {object} options
+ * @return {function}
+ * @private
+ */
+
+function createETagGenerator (options) {
+  return function generateETag (body, encoding) {
+    var buf = !Buffer.isBuffer(body)
+      ? Buffer.from(body, encoding)
+      : body
+
+    return etag(buf, options)
+  }
+}
+
+/**
+ * Parse an extended query string with qs.
+ *
+ * @param {String} str
+ * @return {Object}
+ * @private
+ */
+
+function parseExtendedQueryString(str) {
+  return qs.parse(str, {
+    allowPrototypes: true
+  });
+}
+
+/**
+ * Return new empty object.
+ *
+ * @return {Object}
+ * @api private
+ */
+
+function newObject() {
+  return {};
+}
diff --git a/backend/node_modules/express/lib/view.js b/backend/node_modules/express/lib/view.js
new file mode 100644
index 0000000..c08ab4d
--- /dev/null
+++ b/backend/node_modules/express/lib/view.js
@@ -0,0 +1,182 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2013 Roman Shtylman
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var debug = require('debug')('express:view');
+var path = require('path');
+var fs = require('fs');
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var dirname = path.dirname;
+var basename = path.basename;
+var extname = path.extname;
+var join = path.join;
+var resolve = path.resolve;
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = View;
+
+/**
+ * Initialize a new `View` with the given `name`.
+ *
+ * Options:
+ *
+ *   - `defaultEngine` the default template engine name
+ *   - `engines` template engine require() cache
+ *   - `root` root path for view lookup
+ *
+ * @param {string} name
+ * @param {object} options
+ * @public
+ */
+
+function View(name, options) {
+  var opts = options || {};
+
+  this.defaultEngine = opts.defaultEngine;
+  this.ext = extname(name);
+  this.name = name;
+  this.root = opts.root;
+
+  if (!this.ext && !this.defaultEngine) {
+    throw new Error('No default engine was specified and no extension was provided.');
+  }
+
+  var fileName = name;
+
+  if (!this.ext) {
+    // get extension from default engine name
+    this.ext = this.defaultEngine[0] !== '.'
+      ? '.' + this.defaultEngine
+      : this.defaultEngine;
+
+    fileName += this.ext;
+  }
+
+  if (!opts.engines[this.ext]) {
+    // load engine
+    var mod = this.ext.slice(1)
+    debug('require "%s"', mod)
+
+    // default engine export
+    var fn = require(mod).__express
+
+    if (typeof fn !== 'function') {
+      throw new Error('Module "' + mod + '" does not provide a view engine.')
+    }
+
+    opts.engines[this.ext] = fn
+  }
+
+  // store loaded engine
+  this.engine = opts.engines[this.ext];
+
+  // lookup path
+  this.path = this.lookup(fileName);
+}
+
+/**
+ * Lookup view by the given `name`
+ *
+ * @param {string} name
+ * @private
+ */
+
+View.prototype.lookup = function lookup(name) {
+  var path;
+  var roots = [].concat(this.root);
+
+  debug('lookup "%s"', name);
+
+  for (var i = 0; i < roots.length && !path; i++) {
+    var root = roots[i];
+
+    // resolve the path
+    var loc = resolve(root, name);
+    var dir = dirname(loc);
+    var file = basename(loc);
+
+    // resolve the file
+    path = this.resolve(dir, file);
+  }
+
+  return path;
+};
+
+/**
+ * Render with the given options.
+ *
+ * @param {object} options
+ * @param {function} callback
+ * @private
+ */
+
+View.prototype.render = function render(options, callback) {
+  debug('render "%s"', this.path);
+  this.engine(this.path, options, callback);
+};
+
+/**
+ * Resolve the file within the given directory.
+ *
+ * @param {string} dir
+ * @param {string} file
+ * @private
+ */
+
+View.prototype.resolve = function resolve(dir, file) {
+  var ext = this.ext;
+
+  // <path>.<ext>
+  var path = join(dir, file);
+  var stat = tryStat(path);
+
+  if (stat && stat.isFile()) {
+    return path;
+  }
+
+  // <path>/index.<ext>
+  path = join(dir, basename(file, ext), 'index' + ext);
+  stat = tryStat(path);
+
+  if (stat && stat.isFile()) {
+    return path;
+  }
+};
+
+/**
+ * Return a stat, maybe.
+ *
+ * @param {string} path
+ * @return {fs.Stats}
+ * @private
+ */
+
+function tryStat(path) {
+  debug('stat "%s"', path);
+
+  try {
+    return fs.statSync(path);
+  } catch (e) {
+    return undefined;
+  }
+}
diff --git a/backend/node_modules/express/package.json b/backend/node_modules/express/package.json
new file mode 100644
index 0000000..60f65fe
--- /dev/null
+++ b/backend/node_modules/express/package.json
@@ -0,0 +1,102 @@
+{
+  "name": "express",
+  "description": "Fast, unopinionated, minimalist web framework",
+  "version": "4.21.2",
+  "author": "TJ Holowaychuk <tj@vision-media.ca>",
+  "contributors": [
+    "Aaron Heckmann <aaron.heckmann+github@gmail.com>",
+    "Ciaran Jessup <ciaranj@gmail.com>",
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Guillermo Rauch <rauchg@gmail.com>",
+    "Jonathan Ong <me@jongleberry.com>",
+    "Roman Shtylman <shtylman+expressjs@gmail.com>",
+    "Young Jae Sim <hanul@hanul.me>"
+  ],
+  "license": "MIT",
+  "repository": "expressjs/express",
+  "homepage": "http://expressjs.com/",
+  "funding": {
+    "type": "opencollective",
+    "url": "https://opencollective.com/express"
+  },
+  "keywords": [
+    "express",
+    "framework",
+    "sinatra",
+    "web",
+    "http",
+    "rest",
+    "restful",
+    "router",
+    "app",
+    "api"
+  ],
+  "dependencies": {
+    "accepts": "~1.3.8",
+    "array-flatten": "1.1.1",
+    "body-parser": "1.20.3",
+    "content-disposition": "0.5.4",
+    "content-type": "~1.0.4",
+    "cookie": "0.7.1",
+    "cookie-signature": "1.0.6",
+    "debug": "2.6.9",
+    "depd": "2.0.0",
+    "encodeurl": "~2.0.0",
+    "escape-html": "~1.0.3",
+    "etag": "~1.8.1",
+    "finalhandler": "1.3.1",
+    "fresh": "0.5.2",
+    "http-errors": "2.0.0",
+    "merge-descriptors": "1.0.3",
+    "methods": "~1.1.2",
+    "on-finished": "2.4.1",
+    "parseurl": "~1.3.3",
+    "path-to-regexp": "0.1.12",
+    "proxy-addr": "~2.0.7",
+    "qs": "6.13.0",
+    "range-parser": "~1.2.1",
+    "safe-buffer": "5.2.1",
+    "send": "0.19.0",
+    "serve-static": "1.16.2",
+    "setprototypeof": "1.2.0",
+    "statuses": "2.0.1",
+    "type-is": "~1.6.18",
+    "utils-merge": "1.0.1",
+    "vary": "~1.1.2"
+  },
+  "devDependencies": {
+    "after": "0.8.2",
+    "connect-redis": "3.4.2",
+    "cookie-parser": "1.4.6",
+    "cookie-session": "2.0.0",
+    "ejs": "3.1.9",
+    "eslint": "8.47.0",
+    "express-session": "1.17.2",
+    "hbs": "4.2.0",
+    "marked": "0.7.0",
+    "method-override": "3.0.0",
+    "mocha": "10.2.0",
+    "morgan": "1.10.0",
+    "nyc": "15.1.0",
+    "pbkdf2-password": "1.2.1",
+    "supertest": "6.3.0",
+    "vhost": "~3.0.2"
+  },
+  "engines": {
+    "node": ">= 0.10.0"
+  },
+  "files": [
+    "LICENSE",
+    "History.md",
+    "Readme.md",
+    "index.js",
+    "lib/"
+  ],
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --require test/support/env --reporter spec --bail --check-leaks test/ test/acceptance/",
+    "test-ci": "nyc --exclude examples --exclude test --exclude benchmarks --reporter=lcovonly --reporter=text npm test",
+    "test-cov": "nyc --exclude examples --exclude test --exclude benchmarks --reporter=html --reporter=text npm test",
+    "test-tap": "mocha --require test/support/env --reporter tap --check-leaks test/ test/acceptance/"
+  }
+}
diff --git a/backend/node_modules/finalhandler/HISTORY.md b/backend/node_modules/finalhandler/HISTORY.md
new file mode 100644
index 0000000..7faa4f0
--- /dev/null
+++ b/backend/node_modules/finalhandler/HISTORY.md
@@ -0,0 +1,210 @@
+v1.3.1 / 2024-09-11
+==================
+
+  * deps: encodeurl@~2.0.0
+
+v1.3.0 / 2024-09-03
+==================
+
+  * ignore status message for HTTP/2 (#53)
+
+v1.2.1 / 2024-09-02
+==================
+
+  * Gracefully handle when handling an error and socket is null
+
+1.2.0 / 2022-03-22
+==================
+
+  * Remove set content headers that break response
+  * deps: on-finished@2.4.1
+  * deps: statuses@2.0.1
+    - Rename `425 Unordered Collection` to standard `425 Too Early`
+
+1.1.2 / 2019-05-09
+==================
+
+  * Set stricter `Content-Security-Policy` header
+  * deps: parseurl@~1.3.3
+  * deps: statuses@~1.5.0
+
+1.1.1 / 2018-03-06
+==================
+
+  * Fix 404 output for bad / missing pathnames
+  * deps: encodeurl@~1.0.2
+    - Fix encoding `%` as last character
+  * deps: statuses@~1.4.0
+
+1.1.0 / 2017-09-24
+==================
+
+  * Use `res.headersSent` when available
+
+1.0.6 / 2017-09-22
+==================
+
+  * deps: debug@2.6.9
+
+1.0.5 / 2017-09-15
+==================
+
+  * deps: parseurl@~1.3.2
+    - perf: reduce overhead for full URLs
+    - perf: unroll the "fast-path" `RegExp`
+
+1.0.4 / 2017-08-03
+==================
+
+  * deps: debug@2.6.8
+
+1.0.3 / 2017-05-16
+==================
+
+  * deps: debug@2.6.7
+    - deps: ms@2.0.0
+
+1.0.2 / 2017-04-22
+==================
+
+  * deps: debug@2.6.4
+    - deps: ms@0.7.3
+
+1.0.1 / 2017-03-21
+==================
+
+  * Fix missing `</html>` in HTML document
+  * deps: debug@2.6.3
+    - Fix: `DEBUG_MAX_ARRAY_LENGTH`
+
+1.0.0 / 2017-02-15
+==================
+
+  * Fix exception when `err` cannot be converted to a string
+  * Fully URL-encode the pathname in the 404 message
+  * Only include the pathname in the 404 message
+  * Send complete HTML document
+  * Set `Content-Security-Policy: default-src 'self'` header
+  * deps: debug@2.6.1
+    - Allow colors in workers
+    - Deprecated `DEBUG_FD` environment variable set to `3` or higher
+    - Fix error when running under React Native
+    - Use same color for same namespace
+    - deps: ms@0.7.2
+
+0.5.1 / 2016-11-12
+==================
+
+  * Fix exception when `err.headers` is not an object
+  * deps: statuses@~1.3.1
+  * perf: hoist regular expressions
+  * perf: remove duplicate validation path
+
+0.5.0 / 2016-06-15
+==================
+
+  * Change invalid or non-numeric status code to 500
+  * Overwrite status message to match set status code
+  * Prefer `err.statusCode` if `err.status` is invalid
+  * Set response headers from `err.headers` object
+  * Use `statuses` instead of `http` module for status messages
+    - Includes all defined status messages
+
+0.4.1 / 2015-12-02
+==================
+
+  * deps: escape-html@~1.0.3
+    - perf: enable strict mode
+    - perf: optimize string replacement
+    - perf: use faster string coercion
+
+0.4.0 / 2015-06-14
+==================
+
+  * Fix a false-positive when unpiping in Node.js 0.8
+  * Support `statusCode` property on `Error` objects
+  * Use `unpipe` module for unpiping requests
+  * deps: escape-html@1.0.2
+  * deps: on-finished@~2.3.0
+    - Add defined behavior for HTTP `CONNECT` requests
+    - Add defined behavior for HTTP `Upgrade` requests
+    - deps: ee-first@1.1.1
+  * perf: enable strict mode
+  * perf: remove argument reassignment
+
+0.3.6 / 2015-05-11
+==================
+
+  * deps: debug@~2.2.0
+    - deps: ms@0.7.1
+
+0.3.5 / 2015-04-22
+==================
+
+  * deps: on-finished@~2.2.1
+    - Fix `isFinished(req)` when data buffered
+
+0.3.4 / 2015-03-15
+==================
+
+  * deps: debug@~2.1.3
+    - Fix high intensity foreground color for bold
+    - deps: ms@0.7.0
+
+0.3.3 / 2015-01-01
+==================
+
+  * deps: debug@~2.1.1
+  * deps: on-finished@~2.2.0
+
+0.3.2 / 2014-10-22
+==================
+
+  * deps: on-finished@~2.1.1
+    - Fix handling of pipelined requests
+
+0.3.1 / 2014-10-16
+==================
+
+  * deps: debug@~2.1.0
+    - Implement `DEBUG_FD` env variable support
+
+0.3.0 / 2014-09-17
+==================
+
+  * Terminate in progress response only on error
+  * Use `on-finished` to determine request status
+
+0.2.0 / 2014-09-03
+==================
+
+  * Set `X-Content-Type-Options: nosniff` header
+  * deps: debug@~2.0.0
+
+0.1.0 / 2014-07-16
+==================
+
+  * Respond after request fully read
+    - prevents hung responses and socket hang ups
+  * deps: debug@1.0.4
+
+0.0.3 / 2014-07-11
+==================
+
+  * deps: debug@1.0.3
+    - Add support for multiple wildcards in namespaces
+
+0.0.2 / 2014-06-19
+==================
+
+  * Handle invalid status codes
+
+0.0.1 / 2014-06-05
+==================
+
+  * deps: debug@1.0.2
+
+0.0.0 / 2014-06-05
+==================
+
+  * Extracted from connect/express
diff --git a/backend/node_modules/finalhandler/LICENSE b/backend/node_modules/finalhandler/LICENSE
new file mode 100644
index 0000000..6022106
--- /dev/null
+++ b/backend/node_modules/finalhandler/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2014-2022 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/finalhandler/README.md b/backend/node_modules/finalhandler/README.md
new file mode 100644
index 0000000..6244a13
--- /dev/null
+++ b/backend/node_modules/finalhandler/README.md
@@ -0,0 +1,147 @@
+# finalhandler
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-image]][node-url]
+[![Build Status][github-actions-ci-image]][github-actions-ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Node.js function to invoke as the final step to respond to HTTP request.
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install finalhandler
+```
+
+## API
+
+```js
+var finalhandler = require('finalhandler')
+```
+
+### finalhandler(req, res, [options])
+
+Returns function to be invoked as the final step for the given `req` and `res`.
+This function is to be invoked as `fn(err)`. If `err` is falsy, the handler will
+write out a 404 response to the `res`. If it is truthy, an error response will
+be written out to the `res` or `res` will be terminated if a response has already
+started.
+
+When an error is written, the following information is added to the response:
+
+  * The `res.statusCode` is set from `err.status` (or `err.statusCode`). If
+    this value is outside the 4xx or 5xx range, it will be set to 500.
+  * The `res.statusMessage` is set according to the status code.
+  * The body will be the HTML of the status code message if `env` is
+    `'production'`, otherwise will be `err.stack`.
+  * Any headers specified in an `err.headers` object.
+
+The final handler will also unpipe anything from `req` when it is invoked.
+
+#### options.env
+
+By default, the environment is determined by `NODE_ENV` variable, but it can be
+overridden by this option.
+
+#### options.onerror
+
+Provide a function to be called with the `err` when it exists. Can be used for
+writing errors to a central location without excessive function generation. Called
+as `onerror(err, req, res)`.
+
+## Examples
+
+### always 404
+
+```js
+var finalhandler = require('finalhandler')
+var http = require('http')
+
+var server = http.createServer(function (req, res) {
+  var done = finalhandler(req, res)
+  done()
+})
+
+server.listen(3000)
+```
+
+### perform simple action
+
+```js
+var finalhandler = require('finalhandler')
+var fs = require('fs')
+var http = require('http')
+
+var server = http.createServer(function (req, res) {
+  var done = finalhandler(req, res)
+
+  fs.readFile('index.html', function (err, buf) {
+    if (err) return done(err)
+    res.setHeader('Content-Type', 'text/html')
+    res.end(buf)
+  })
+})
+
+server.listen(3000)
+```
+
+### use with middleware-style functions
+
+```js
+var finalhandler = require('finalhandler')
+var http = require('http')
+var serveStatic = require('serve-static')
+
+var serve = serveStatic('public')
+
+var server = http.createServer(function (req, res) {
+  var done = finalhandler(req, res)
+  serve(req, res, done)
+})
+
+server.listen(3000)
+```
+
+### keep log of all errors
+
+```js
+var finalhandler = require('finalhandler')
+var fs = require('fs')
+var http = require('http')
+
+var server = http.createServer(function (req, res) {
+  var done = finalhandler(req, res, { onerror: logerror })
+
+  fs.readFile('index.html', function (err, buf) {
+    if (err) return done(err)
+    res.setHeader('Content-Type', 'text/html')
+    res.end(buf)
+  })
+})
+
+server.listen(3000)
+
+function logerror (err) {
+  console.error(err.stack || err.toString())
+}
+```
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/finalhandler.svg
+[npm-url]: https://npmjs.org/package/finalhandler
+[node-image]: https://img.shields.io/node/v/finalhandler.svg
+[node-url]: https://nodejs.org/en/download
+[coveralls-image]: https://img.shields.io/coveralls/pillarjs/finalhandler.svg
+[coveralls-url]: https://coveralls.io/r/pillarjs/finalhandler?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/finalhandler.svg
+[downloads-url]: https://npmjs.org/package/finalhandler
+[github-actions-ci-image]: https://github.com/pillarjs/finalhandler/actions/workflows/ci.yml/badge.svg
+[github-actions-ci-url]: https://github.com/pillarjs/finalhandler/actions/workflows/ci.yml
diff --git a/backend/node_modules/finalhandler/SECURITY.md b/backend/node_modules/finalhandler/SECURITY.md
new file mode 100644
index 0000000..6e23249
--- /dev/null
+++ b/backend/node_modules/finalhandler/SECURITY.md
@@ -0,0 +1,25 @@
+# Security Policies and Procedures
+
+## Reporting a Bug
+
+The `finalhandler` team and community take all security bugs seriously. Thank
+you for improving the security of Express. We appreciate your efforts and
+responsible disclosure and will make every effort to acknowledge your
+contributions.
+
+Report security bugs by emailing the current owner(s) of `finalhandler`. This
+information can be found in the npm registry using the command
+`npm owner ls finalhandler`.
+If unsure or unable to get the information from the above, open an issue
+in the [project issue tracker](https://github.com/pillarjs/finalhandler/issues)
+asking for the current contact information.
+
+To ensure the timely response to your report, please ensure that the entirety
+of the report is contained within the email body and not solely behind a web
+link or an attachment.
+
+At least one owner will acknowledge your email within 48 hours, and will send a
+more detailed response within 48 hours indicating the next steps in handling
+your report. After the initial reply to your report, the owners will
+endeavor to keep you informed of the progress towards a fix and full
+announcement, and may ask for additional information or guidance.
diff --git a/backend/node_modules/finalhandler/index.js b/backend/node_modules/finalhandler/index.js
new file mode 100644
index 0000000..ec34be9
--- /dev/null
+++ b/backend/node_modules/finalhandler/index.js
@@ -0,0 +1,341 @@
+/*!
+ * finalhandler
+ * Copyright(c) 2014-2022 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var debug = require('debug')('finalhandler')
+var encodeUrl = require('encodeurl')
+var escapeHtml = require('escape-html')
+var onFinished = require('on-finished')
+var parseUrl = require('parseurl')
+var statuses = require('statuses')
+var unpipe = require('unpipe')
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var DOUBLE_SPACE_REGEXP = /\x20{2}/g
+var NEWLINE_REGEXP = /\n/g
+
+/* istanbul ignore next */
+var defer = typeof setImmediate === 'function'
+  ? setImmediate
+  : function (fn) { process.nextTick(fn.bind.apply(fn, arguments)) }
+var isFinished = onFinished.isFinished
+
+/**
+ * Create a minimal HTML document.
+ *
+ * @param {string} message
+ * @private
+ */
+
+function createHtmlDocument (message) {
+  var body = escapeHtml(message)
+    .replace(NEWLINE_REGEXP, '<br>')
+    .replace(DOUBLE_SPACE_REGEXP, ' &nbsp;')
+
+  return '<!DOCTYPE html>\n' +
+    '<html lang="en">\n' +
+    '<head>\n' +
+    '<meta charset="utf-8">\n' +
+    '<title>Error</title>\n' +
+    '</head>\n' +
+    '<body>\n' +
+    '<pre>' + body + '</pre>\n' +
+    '</body>\n' +
+    '</html>\n'
+}
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = finalhandler
+
+/**
+ * Create a function to handle the final response.
+ *
+ * @param {Request} req
+ * @param {Response} res
+ * @param {Object} [options]
+ * @return {Function}
+ * @public
+ */
+
+function finalhandler (req, res, options) {
+  var opts = options || {}
+
+  // get environment
+  var env = opts.env || process.env.NODE_ENV || 'development'
+
+  // get error callback
+  var onerror = opts.onerror
+
+  return function (err) {
+    var headers
+    var msg
+    var status
+
+    // ignore 404 on in-flight response
+    if (!err && headersSent(res)) {
+      debug('cannot 404 after headers sent')
+      return
+    }
+
+    // unhandled error
+    if (err) {
+      // respect status code from error
+      status = getErrorStatusCode(err)
+
+      if (status === undefined) {
+        // fallback to status code on response
+        status = getResponseStatusCode(res)
+      } else {
+        // respect headers from error
+        headers = getErrorHeaders(err)
+      }
+
+      // get error message
+      msg = getErrorMessage(err, status, env)
+    } else {
+      // not found
+      status = 404
+      msg = 'Cannot ' + req.method + ' ' + encodeUrl(getResourceName(req))
+    }
+
+    debug('default %s', status)
+
+    // schedule onerror callback
+    if (err && onerror) {
+      defer(onerror, err, req, res)
+    }
+
+    // cannot actually respond
+    if (headersSent(res)) {
+      debug('cannot %d after headers sent', status)
+      if (req.socket) {
+        req.socket.destroy()
+      }
+      return
+    }
+
+    // send response
+    send(req, res, status, headers, msg)
+  }
+}
+
+/**
+ * Get headers from Error object.
+ *
+ * @param {Error} err
+ * @return {object}
+ * @private
+ */
+
+function getErrorHeaders (err) {
+  if (!err.headers || typeof err.headers !== 'object') {
+    return undefined
+  }
+
+  var headers = Object.create(null)
+  var keys = Object.keys(err.headers)
+
+  for (var i = 0; i < keys.length; i++) {
+    var key = keys[i]
+    headers[key] = err.headers[key]
+  }
+
+  return headers
+}
+
+/**
+ * Get message from Error object, fallback to status message.
+ *
+ * @param {Error} err
+ * @param {number} status
+ * @param {string} env
+ * @return {string}
+ * @private
+ */
+
+function getErrorMessage (err, status, env) {
+  var msg
+
+  if (env !== 'production') {
+    // use err.stack, which typically includes err.message
+    msg = err.stack
+
+    // fallback to err.toString() when possible
+    if (!msg && typeof err.toString === 'function') {
+      msg = err.toString()
+    }
+  }
+
+  return msg || statuses.message[status]
+}
+
+/**
+ * Get status code from Error object.
+ *
+ * @param {Error} err
+ * @return {number}
+ * @private
+ */
+
+function getErrorStatusCode (err) {
+  // check err.status
+  if (typeof err.status === 'number' && err.status >= 400 && err.status < 600) {
+    return err.status
+  }
+
+  // check err.statusCode
+  if (typeof err.statusCode === 'number' && err.statusCode >= 400 && err.statusCode < 600) {
+    return err.statusCode
+  }
+
+  return undefined
+}
+
+/**
+ * Get resource name for the request.
+ *
+ * This is typically just the original pathname of the request
+ * but will fallback to "resource" is that cannot be determined.
+ *
+ * @param {IncomingMessage} req
+ * @return {string}
+ * @private
+ */
+
+function getResourceName (req) {
+  try {
+    return parseUrl.original(req).pathname
+  } catch (e) {
+    return 'resource'
+  }
+}
+
+/**
+ * Get status code from response.
+ *
+ * @param {OutgoingMessage} res
+ * @return {number}
+ * @private
+ */
+
+function getResponseStatusCode (res) {
+  var status = res.statusCode
+
+  // default status code to 500 if outside valid range
+  if (typeof status !== 'number' || status < 400 || status > 599) {
+    status = 500
+  }
+
+  return status
+}
+
+/**
+ * Determine if the response headers have been sent.
+ *
+ * @param {object} res
+ * @returns {boolean}
+ * @private
+ */
+
+function headersSent (res) {
+  return typeof res.headersSent !== 'boolean'
+    ? Boolean(res._header)
+    : res.headersSent
+}
+
+/**
+ * Send response.
+ *
+ * @param {IncomingMessage} req
+ * @param {OutgoingMessage} res
+ * @param {number} status
+ * @param {object} headers
+ * @param {string} message
+ * @private
+ */
+
+function send (req, res, status, headers, message) {
+  function write () {
+    // response body
+    var body = createHtmlDocument(message)
+
+    // response status
+    res.statusCode = status
+
+    if (req.httpVersionMajor < 2) {
+      res.statusMessage = statuses.message[status]
+    }
+
+    // remove any content headers
+    res.removeHeader('Content-Encoding')
+    res.removeHeader('Content-Language')
+    res.removeHeader('Content-Range')
+
+    // response headers
+    setHeaders(res, headers)
+
+    // security headers
+    res.setHeader('Content-Security-Policy', "default-src 'none'")
+    res.setHeader('X-Content-Type-Options', 'nosniff')
+
+    // standard headers
+    res.setHeader('Content-Type', 'text/html; charset=utf-8')
+    res.setHeader('Content-Length', Buffer.byteLength(body, 'utf8'))
+
+    if (req.method === 'HEAD') {
+      res.end()
+      return
+    }
+
+    res.end(body, 'utf8')
+  }
+
+  if (isFinished(req)) {
+    write()
+    return
+  }
+
+  // unpipe everything from the request
+  unpipe(req)
+
+  // flush the request
+  onFinished(req, write)
+  req.resume()
+}
+
+/**
+ * Set response headers from an object.
+ *
+ * @param {OutgoingMessage} res
+ * @param {object} headers
+ * @private
+ */
+
+function setHeaders (res, headers) {
+  if (!headers) {
+    return
+  }
+
+  var keys = Object.keys(headers)
+  for (var i = 0; i < keys.length; i++) {
+    var key = keys[i]
+    res.setHeader(key, headers[key])
+  }
+}
diff --git a/backend/node_modules/finalhandler/package.json b/backend/node_modules/finalhandler/package.json
new file mode 100644
index 0000000..2363eb4
--- /dev/null
+++ b/backend/node_modules/finalhandler/package.json
@@ -0,0 +1,47 @@
+{
+  "name": "finalhandler",
+  "description": "Node.js final http responder",
+  "version": "1.3.1",
+  "author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
+  "license": "MIT",
+  "repository": "pillarjs/finalhandler",
+  "dependencies": {
+    "debug": "2.6.9",
+    "encodeurl": "~2.0.0",
+    "escape-html": "~1.0.3",
+    "on-finished": "2.4.1",
+    "parseurl": "~1.3.3",
+    "statuses": "2.0.1",
+    "unpipe": "~1.0.0"
+  },
+  "devDependencies": {
+    "eslint": "7.32.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.26.0",
+    "eslint-plugin-markdown": "2.2.1",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "5.2.0",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "10.0.0",
+    "nyc": "15.1.0",
+    "readable-stream": "2.3.6",
+    "safe-buffer": "5.2.1",
+    "supertest": "6.2.4"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "SECURITY.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --check-leaks test/",
+    "test-ci": "nyc --reporter=lcovonly --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "test-inspect": "mocha --reporter spec --inspect --inspect-brk test/"
+  }
+}
diff --git a/backend/node_modules/follow-redirects/LICENSE b/backend/node_modules/follow-redirects/LICENSE
new file mode 100644
index 0000000..742cbad
--- /dev/null
+++ b/backend/node_modules/follow-redirects/LICENSE
@@ -0,0 +1,18 @@
+Copyright 2014–present Olivier Lalonde <olalonde@gmail.com>, James Talmage <james@talmage.io>, Ruben Verborgh
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/follow-redirects/README.md b/backend/node_modules/follow-redirects/README.md
new file mode 100644
index 0000000..eb869a6
--- /dev/null
+++ b/backend/node_modules/follow-redirects/README.md
@@ -0,0 +1,155 @@
+## Follow Redirects
+
+Drop-in replacement for Node's `http` and `https` modules that automatically follows redirects.
+
+[![npm version](https://img.shields.io/npm/v/follow-redirects.svg)](https://www.npmjs.com/package/follow-redirects)
+[![Build Status](https://github.com/follow-redirects/follow-redirects/workflows/CI/badge.svg)](https://github.com/follow-redirects/follow-redirects/actions)
+[![Coverage Status](https://coveralls.io/repos/follow-redirects/follow-redirects/badge.svg?branch=master)](https://coveralls.io/r/follow-redirects/follow-redirects?branch=master)
+[![npm downloads](https://img.shields.io/npm/dm/follow-redirects.svg)](https://www.npmjs.com/package/follow-redirects)
+[![Sponsor on GitHub](https://img.shields.io/static/v1?label=Sponsor&message=%F0%9F%92%96&logo=GitHub)](https://github.com/sponsors/RubenVerborgh)
+
+`follow-redirects` provides [request](https://nodejs.org/api/http.html#http_http_request_options_callback) and [get](https://nodejs.org/api/http.html#http_http_get_options_callback)
+ methods that behave identically to those found on the native [http](https://nodejs.org/api/http.html#http_http_request_options_callback) and [https](https://nodejs.org/api/https.html#https_https_request_options_callback)
+ modules, with the exception that they will seamlessly follow redirects.
+
+```javascript
+const { http, https } = require('follow-redirects');
+
+http.get('http://bit.ly/900913', response => {
+  response.on('data', chunk => {
+    console.log(chunk);
+  });
+}).on('error', err => {
+  console.error(err);
+});
+```
+
+You can inspect the final redirected URL through the `responseUrl` property on the `response`.
+If no redirection happened, `responseUrl` is the original request URL.
+
+```javascript
+const request = https.request({
+  host: 'bitly.com',
+  path: '/UHfDGO',
+}, response => {
+  console.log(response.responseUrl);
+  // 'http://duckduckgo.com/robots.txt'
+});
+request.end();
+```
+
+## Options
+### Global options
+Global options are set directly on the `follow-redirects` module:
+
+```javascript
+const followRedirects = require('follow-redirects');
+followRedirects.maxRedirects = 10;
+followRedirects.maxBodyLength = 20 * 1024 * 1024; // 20 MB
+```
+
+The following global options are supported:
+
+- `maxRedirects` (default: `21`) – sets the maximum number of allowed redirects; if exceeded, an error will be emitted.
+
+- `maxBodyLength` (default: 10MB) – sets the maximum size of the request body; if exceeded, an error will be emitted.
+
+### Per-request options
+Per-request options are set by passing an `options` object:
+
+```javascript
+const url = require('url');
+const { http, https } = require('follow-redirects');
+
+const options = url.parse('http://bit.ly/900913');
+options.maxRedirects = 10;
+options.beforeRedirect = (options, response, request) => {
+  // Use this to adjust the request options upon redirecting,
+  // to inspect the latest response headers,
+  // or to cancel the request by throwing an error
+
+  // response.headers = the redirect response headers
+  // response.statusCode = the redirect response code (eg. 301, 307, etc.)
+
+  // request.url = the requested URL that resulted in a redirect
+  // request.headers = the headers in the request that resulted in a redirect
+  // request.method = the method of the request that resulted in a redirect
+  if (options.hostname === "example.com") {
+    options.auth = "user:password";
+  }
+};
+http.request(options);
+```
+
+In addition to the [standard HTTP](https://nodejs.org/api/http.html#http_http_request_options_callback) and [HTTPS options](https://nodejs.org/api/https.html#https_https_request_options_callback),
+the following per-request options are supported:
+- `followRedirects` (default: `true`) – whether redirects should be followed.
+
+- `maxRedirects` (default: `21`) – sets the maximum number of allowed redirects; if exceeded, an error will be emitted.
+
+- `maxBodyLength` (default: 10MB) – sets the maximum size of the request body; if exceeded, an error will be emitted.
+
+- `beforeRedirect` (default: `undefined`) – optionally change the request `options` on redirects, or abort the request by throwing an error.
+
+- `agents` (default: `undefined`) – sets the `agent` option per protocol, since HTTP and HTTPS use different agents. Example value: `{ http: new http.Agent(), https: new https.Agent() }`
+
+- `trackRedirects` (default: `false`) – whether to store the redirected response details into the `redirects` array on the response object.
+
+
+### Advanced usage
+By default, `follow-redirects` will use the Node.js default implementations
+of [`http`](https://nodejs.org/api/http.html)
+and [`https`](https://nodejs.org/api/https.html).
+To enable features such as caching and/or intermediate request tracking,
+you might instead want to wrap `follow-redirects` around custom protocol implementations:
+
+```javascript
+const { http, https } = require('follow-redirects').wrap({
+  http: require('your-custom-http'),
+  https: require('your-custom-https'),
+});
+```
+
+Such custom protocols only need an implementation of the `request` method.
+
+## Browser Usage
+
+Due to the way the browser works,
+the `http` and `https` browser equivalents perform redirects by default.
+
+By requiring `follow-redirects` this way:
+```javascript
+const http = require('follow-redirects/http');
+const https = require('follow-redirects/https');
+```
+you can easily tell webpack and friends to replace
+`follow-redirect` by the built-in versions:
+
+```json
+{
+  "follow-redirects/http"  : "http",
+  "follow-redirects/https" : "https"
+}
+```
+
+## Contributing
+
+Pull Requests are always welcome. Please [file an issue](https://github.com/follow-redirects/follow-redirects/issues)
+ detailing your proposal before you invest your valuable time. Additional features and bug fixes should be accompanied
+ by tests. You can run the test suite locally with a simple `npm test` command.
+
+## Debug Logging
+
+`follow-redirects` uses the excellent [debug](https://www.npmjs.com/package/debug) for logging. To turn on logging
+ set the environment variable `DEBUG=follow-redirects` for debug output from just this module. When running the test
+ suite it is sometimes advantageous to set `DEBUG=*` to see output from the express server as well.
+
+## Authors
+
+- [Ruben Verborgh](https://ruben.verborgh.org/)
+- [Olivier Lalonde](mailto:olalonde@gmail.com)
+- [James Talmage](mailto:james@talmage.io)
+
+## License
+
+[MIT License](https://github.com/follow-redirects/follow-redirects/blob/master/LICENSE)
diff --git a/backend/node_modules/follow-redirects/debug.js b/backend/node_modules/follow-redirects/debug.js
new file mode 100644
index 0000000..decb77d
--- /dev/null
+++ b/backend/node_modules/follow-redirects/debug.js
@@ -0,0 +1,15 @@
+var debug;
+
+module.exports = function () {
+  if (!debug) {
+    try {
+      /* eslint global-require: off */
+      debug = require("debug")("follow-redirects");
+    }
+    catch (error) { /* */ }
+    if (typeof debug !== "function") {
+      debug = function () { /* */ };
+    }
+  }
+  debug.apply(null, arguments);
+};
diff --git a/backend/node_modules/follow-redirects/http.js b/backend/node_modules/follow-redirects/http.js
new file mode 100644
index 0000000..695e356
--- /dev/null
+++ b/backend/node_modules/follow-redirects/http.js
@@ -0,0 +1 @@
+module.exports = require("./").http;
diff --git a/backend/node_modules/follow-redirects/https.js b/backend/node_modules/follow-redirects/https.js
new file mode 100644
index 0000000..d21c921
--- /dev/null
+++ b/backend/node_modules/follow-redirects/https.js
@@ -0,0 +1 @@
+module.exports = require("./").https;
diff --git a/backend/node_modules/follow-redirects/index.js b/backend/node_modules/follow-redirects/index.js
new file mode 100644
index 0000000..a30b32c
--- /dev/null
+++ b/backend/node_modules/follow-redirects/index.js
@@ -0,0 +1,686 @@
+var url = require("url");
+var URL = url.URL;
+var http = require("http");
+var https = require("https");
+var Writable = require("stream").Writable;
+var assert = require("assert");
+var debug = require("./debug");
+
+// Preventive platform detection
+// istanbul ignore next
+(function detectUnsupportedEnvironment() {
+  var looksLikeNode = typeof process !== "undefined";
+  var looksLikeBrowser = typeof window !== "undefined" && typeof document !== "undefined";
+  var looksLikeV8 = isFunction(Error.captureStackTrace);
+  if (!looksLikeNode && (looksLikeBrowser || !looksLikeV8)) {
+    console.warn("The follow-redirects package should be excluded from browser builds.");
+  }
+}());
+
+// Whether to use the native URL object or the legacy url module
+var useNativeURL = false;
+try {
+  assert(new URL(""));
+}
+catch (error) {
+  useNativeURL = error.code === "ERR_INVALID_URL";
+}
+
+// URL fields to preserve in copy operations
+var preservedUrlFields = [
+  "auth",
+  "host",
+  "hostname",
+  "href",
+  "path",
+  "pathname",
+  "port",
+  "protocol",
+  "query",
+  "search",
+  "hash",
+];
+
+// Create handlers that pass events from native requests
+var events = ["abort", "aborted", "connect", "error", "socket", "timeout"];
+var eventHandlers = Object.create(null);
+events.forEach(function (event) {
+  eventHandlers[event] = function (arg1, arg2, arg3) {
+    this._redirectable.emit(event, arg1, arg2, arg3);
+  };
+});
+
+// Error types with codes
+var InvalidUrlError = createErrorType(
+  "ERR_INVALID_URL",
+  "Invalid URL",
+  TypeError
+);
+var RedirectionError = createErrorType(
+  "ERR_FR_REDIRECTION_FAILURE",
+  "Redirected request failed"
+);
+var TooManyRedirectsError = createErrorType(
+  "ERR_FR_TOO_MANY_REDIRECTS",
+  "Maximum number of redirects exceeded",
+  RedirectionError
+);
+var MaxBodyLengthExceededError = createErrorType(
+  "ERR_FR_MAX_BODY_LENGTH_EXCEEDED",
+  "Request body larger than maxBodyLength limit"
+);
+var WriteAfterEndError = createErrorType(
+  "ERR_STREAM_WRITE_AFTER_END",
+  "write after end"
+);
+
+// istanbul ignore next
+var destroy = Writable.prototype.destroy || noop;
+
+// An HTTP(S) request that can be redirected
+function RedirectableRequest(options, responseCallback) {
+  // Initialize the request
+  Writable.call(this);
+  this._sanitizeOptions(options);
+  this._options = options;
+  this._ended = false;
+  this._ending = false;
+  this._redirectCount = 0;
+  this._redirects = [];
+  this._requestBodyLength = 0;
+  this._requestBodyBuffers = [];
+
+  // Attach a callback if passed
+  if (responseCallback) {
+    this.on("response", responseCallback);
+  }
+
+  // React to responses of native requests
+  var self = this;
+  this._onNativeResponse = function (response) {
+    try {
+      self._processResponse(response);
+    }
+    catch (cause) {
+      self.emit("error", cause instanceof RedirectionError ?
+        cause : new RedirectionError({ cause: cause }));
+    }
+  };
+
+  // Perform the first request
+  this._performRequest();
+}
+RedirectableRequest.prototype = Object.create(Writable.prototype);
+
+RedirectableRequest.prototype.abort = function () {
+  destroyRequest(this._currentRequest);
+  this._currentRequest.abort();
+  this.emit("abort");
+};
+
+RedirectableRequest.prototype.destroy = function (error) {
+  destroyRequest(this._currentRequest, error);
+  destroy.call(this, error);
+  return this;
+};
+
+// Writes buffered data to the current native request
+RedirectableRequest.prototype.write = function (data, encoding, callback) {
+  // Writing is not allowed if end has been called
+  if (this._ending) {
+    throw new WriteAfterEndError();
+  }
+
+  // Validate input and shift parameters if necessary
+  if (!isString(data) && !isBuffer(data)) {
+    throw new TypeError("data should be a string, Buffer or Uint8Array");
+  }
+  if (isFunction(encoding)) {
+    callback = encoding;
+    encoding = null;
+  }
+
+  // Ignore empty buffers, since writing them doesn't invoke the callback
+  // https://github.com/nodejs/node/issues/22066
+  if (data.length === 0) {
+    if (callback) {
+      callback();
+    }
+    return;
+  }
+  // Only write when we don't exceed the maximum body length
+  if (this._requestBodyLength + data.length <= this._options.maxBodyLength) {
+    this._requestBodyLength += data.length;
+    this._requestBodyBuffers.push({ data: data, encoding: encoding });
+    this._currentRequest.write(data, encoding, callback);
+  }
+  // Error when we exceed the maximum body length
+  else {
+    this.emit("error", new MaxBodyLengthExceededError());
+    this.abort();
+  }
+};
+
+// Ends the current native request
+RedirectableRequest.prototype.end = function (data, encoding, callback) {
+  // Shift parameters if necessary
+  if (isFunction(data)) {
+    callback = data;
+    data = encoding = null;
+  }
+  else if (isFunction(encoding)) {
+    callback = encoding;
+    encoding = null;
+  }
+
+  // Write data if needed and end
+  if (!data) {
+    this._ended = this._ending = true;
+    this._currentRequest.end(null, null, callback);
+  }
+  else {
+    var self = this;
+    var currentRequest = this._currentRequest;
+    this.write(data, encoding, function () {
+      self._ended = true;
+      currentRequest.end(null, null, callback);
+    });
+    this._ending = true;
+  }
+};
+
+// Sets a header value on the current native request
+RedirectableRequest.prototype.setHeader = function (name, value) {
+  this._options.headers[name] = value;
+  this._currentRequest.setHeader(name, value);
+};
+
+// Clears a header value on the current native request
+RedirectableRequest.prototype.removeHeader = function (name) {
+  delete this._options.headers[name];
+  this._currentRequest.removeHeader(name);
+};
+
+// Global timeout for all underlying requests
+RedirectableRequest.prototype.setTimeout = function (msecs, callback) {
+  var self = this;
+
+  // Destroys the socket on timeout
+  function destroyOnTimeout(socket) {
+    socket.setTimeout(msecs);
+    socket.removeListener("timeout", socket.destroy);
+    socket.addListener("timeout", socket.destroy);
+  }
+
+  // Sets up a timer to trigger a timeout event
+  function startTimer(socket) {
+    if (self._timeout) {
+      clearTimeout(self._timeout);
+    }
+    self._timeout = setTimeout(function () {
+      self.emit("timeout");
+      clearTimer();
+    }, msecs);
+    destroyOnTimeout(socket);
+  }
+
+  // Stops a timeout from triggering
+  function clearTimer() {
+    // Clear the timeout
+    if (self._timeout) {
+      clearTimeout(self._timeout);
+      self._timeout = null;
+    }
+
+    // Clean up all attached listeners
+    self.removeListener("abort", clearTimer);
+    self.removeListener("error", clearTimer);
+    self.removeListener("response", clearTimer);
+    self.removeListener("close", clearTimer);
+    if (callback) {
+      self.removeListener("timeout", callback);
+    }
+    if (!self.socket) {
+      self._currentRequest.removeListener("socket", startTimer);
+    }
+  }
+
+  // Attach callback if passed
+  if (callback) {
+    this.on("timeout", callback);
+  }
+
+  // Start the timer if or when the socket is opened
+  if (this.socket) {
+    startTimer(this.socket);
+  }
+  else {
+    this._currentRequest.once("socket", startTimer);
+  }
+
+  // Clean up on events
+  this.on("socket", destroyOnTimeout);
+  this.on("abort", clearTimer);
+  this.on("error", clearTimer);
+  this.on("response", clearTimer);
+  this.on("close", clearTimer);
+
+  return this;
+};
+
+// Proxy all other public ClientRequest methods
+[
+  "flushHeaders", "getHeader",
+  "setNoDelay", "setSocketKeepAlive",
+].forEach(function (method) {
+  RedirectableRequest.prototype[method] = function (a, b) {
+    return this._currentRequest[method](a, b);
+  };
+});
+
+// Proxy all public ClientRequest properties
+["aborted", "connection", "socket"].forEach(function (property) {
+  Object.defineProperty(RedirectableRequest.prototype, property, {
+    get: function () { return this._currentRequest[property]; },
+  });
+});
+
+RedirectableRequest.prototype._sanitizeOptions = function (options) {
+  // Ensure headers are always present
+  if (!options.headers) {
+    options.headers = {};
+  }
+
+  // Since http.request treats host as an alias of hostname,
+  // but the url module interprets host as hostname plus port,
+  // eliminate the host property to avoid confusion.
+  if (options.host) {
+    // Use hostname if set, because it has precedence
+    if (!options.hostname) {
+      options.hostname = options.host;
+    }
+    delete options.host;
+  }
+
+  // Complete the URL object when necessary
+  if (!options.pathname && options.path) {
+    var searchPos = options.path.indexOf("?");
+    if (searchPos < 0) {
+      options.pathname = options.path;
+    }
+    else {
+      options.pathname = options.path.substring(0, searchPos);
+      options.search = options.path.substring(searchPos);
+    }
+  }
+};
+
+
+// Executes the next native request (initial or redirect)
+RedirectableRequest.prototype._performRequest = function () {
+  // Load the native protocol
+  var protocol = this._options.protocol;
+  var nativeProtocol = this._options.nativeProtocols[protocol];
+  if (!nativeProtocol) {
+    throw new TypeError("Unsupported protocol " + protocol);
+  }
+
+  // If specified, use the agent corresponding to the protocol
+  // (HTTP and HTTPS use different types of agents)
+  if (this._options.agents) {
+    var scheme = protocol.slice(0, -1);
+    this._options.agent = this._options.agents[scheme];
+  }
+
+  // Create the native request and set up its event handlers
+  var request = this._currentRequest =
+        nativeProtocol.request(this._options, this._onNativeResponse);
+  request._redirectable = this;
+  for (var event of events) {
+    request.on(event, eventHandlers[event]);
+  }
+
+  // RFC7230§5.3.1: When making a request directly to an origin server, […]
+  // a client MUST send only the absolute path […] as the request-target.
+  this._currentUrl = /^\//.test(this._options.path) ?
+    url.format(this._options) :
+    // When making a request to a proxy, […]
+    // a client MUST send the target URI in absolute-form […].
+    this._options.path;
+
+  // End a redirected request
+  // (The first request must be ended explicitly with RedirectableRequest#end)
+  if (this._isRedirect) {
+    // Write the request entity and end
+    var i = 0;
+    var self = this;
+    var buffers = this._requestBodyBuffers;
+    (function writeNext(error) {
+      // Only write if this request has not been redirected yet
+      // istanbul ignore else
+      if (request === self._currentRequest) {
+        // Report any write errors
+        // istanbul ignore if
+        if (error) {
+          self.emit("error", error);
+        }
+        // Write the next buffer if there are still left
+        else if (i < buffers.length) {
+          var buffer = buffers[i++];
+          // istanbul ignore else
+          if (!request.finished) {
+            request.write(buffer.data, buffer.encoding, writeNext);
+          }
+        }
+        // End the request if `end` has been called on us
+        else if (self._ended) {
+          request.end();
+        }
+      }
+    }());
+  }
+};
+
+// Processes a response from the current native request
+RedirectableRequest.prototype._processResponse = function (response) {
+  // Store the redirected response
+  var statusCode = response.statusCode;
+  if (this._options.trackRedirects) {
+    this._redirects.push({
+      url: this._currentUrl,
+      headers: response.headers,
+      statusCode: statusCode,
+    });
+  }
+
+  // RFC7231§6.4: The 3xx (Redirection) class of status code indicates
+  // that further action needs to be taken by the user agent in order to
+  // fulfill the request. If a Location header field is provided,
+  // the user agent MAY automatically redirect its request to the URI
+  // referenced by the Location field value,
+  // even if the specific status code is not understood.
+
+  // If the response is not a redirect; return it as-is
+  var location = response.headers.location;
+  if (!location || this._options.followRedirects === false ||
+      statusCode < 300 || statusCode >= 400) {
+    response.responseUrl = this._currentUrl;
+    response.redirects = this._redirects;
+    this.emit("response", response);
+
+    // Clean up
+    this._requestBodyBuffers = [];
+    return;
+  }
+
+  // The response is a redirect, so abort the current request
+  destroyRequest(this._currentRequest);
+  // Discard the remainder of the response to avoid waiting for data
+  response.destroy();
+
+  // RFC7231§6.4: A client SHOULD detect and intervene
+  // in cyclical redirections (i.e., "infinite" redirection loops).
+  if (++this._redirectCount > this._options.maxRedirects) {
+    throw new TooManyRedirectsError();
+  }
+
+  // Store the request headers if applicable
+  var requestHeaders;
+  var beforeRedirect = this._options.beforeRedirect;
+  if (beforeRedirect) {
+    requestHeaders = Object.assign({
+      // The Host header was set by nativeProtocol.request
+      Host: response.req.getHeader("host"),
+    }, this._options.headers);
+  }
+
+  // RFC7231§6.4: Automatic redirection needs to done with
+  // care for methods not known to be safe, […]
+  // RFC7231§6.4.2–3: For historical reasons, a user agent MAY change
+  // the request method from POST to GET for the subsequent request.
+  var method = this._options.method;
+  if ((statusCode === 301 || statusCode === 302) && this._options.method === "POST" ||
+      // RFC7231§6.4.4: The 303 (See Other) status code indicates that
+      // the server is redirecting the user agent to a different resource […]
+      // A user agent can perform a retrieval request targeting that URI
+      // (a GET or HEAD request if using HTTP) […]
+      (statusCode === 303) && !/^(?:GET|HEAD)$/.test(this._options.method)) {
+    this._options.method = "GET";
+    // Drop a possible entity and headers related to it
+    this._requestBodyBuffers = [];
+    removeMatchingHeaders(/^content-/i, this._options.headers);
+  }
+
+  // Drop the Host header, as the redirect might lead to a different host
+  var currentHostHeader = removeMatchingHeaders(/^host$/i, this._options.headers);
+
+  // If the redirect is relative, carry over the host of the last request
+  var currentUrlParts = parseUrl(this._currentUrl);
+  var currentHost = currentHostHeader || currentUrlParts.host;
+  var currentUrl = /^\w+:/.test(location) ? this._currentUrl :
+    url.format(Object.assign(currentUrlParts, { host: currentHost }));
+
+  // Create the redirected request
+  var redirectUrl = resolveUrl(location, currentUrl);
+  debug("redirecting to", redirectUrl.href);
+  this._isRedirect = true;
+  spreadUrlObject(redirectUrl, this._options);
+
+  // Drop confidential headers when redirecting to a less secure protocol
+  // or to a different domain that is not a superdomain
+  if (redirectUrl.protocol !== currentUrlParts.protocol &&
+     redirectUrl.protocol !== "https:" ||
+     redirectUrl.host !== currentHost &&
+     !isSubdomain(redirectUrl.host, currentHost)) {
+    removeMatchingHeaders(/^(?:(?:proxy-)?authorization|cookie)$/i, this._options.headers);
+  }
+
+  // Evaluate the beforeRedirect callback
+  if (isFunction(beforeRedirect)) {
+    var responseDetails = {
+      headers: response.headers,
+      statusCode: statusCode,
+    };
+    var requestDetails = {
+      url: currentUrl,
+      method: method,
+      headers: requestHeaders,
+    };
+    beforeRedirect(this._options, responseDetails, requestDetails);
+    this._sanitizeOptions(this._options);
+  }
+
+  // Perform the redirected request
+  this._performRequest();
+};
+
+// Wraps the key/value object of protocols with redirect functionality
+function wrap(protocols) {
+  // Default settings
+  var exports = {
+    maxRedirects: 21,
+    maxBodyLength: 10 * 1024 * 1024,
+  };
+
+  // Wrap each protocol
+  var nativeProtocols = {};
+  Object.keys(protocols).forEach(function (scheme) {
+    var protocol = scheme + ":";
+    var nativeProtocol = nativeProtocols[protocol] = protocols[scheme];
+    var wrappedProtocol = exports[scheme] = Object.create(nativeProtocol);
+
+    // Executes a request, following redirects
+    function request(input, options, callback) {
+      // Parse parameters, ensuring that input is an object
+      if (isURL(input)) {
+        input = spreadUrlObject(input);
+      }
+      else if (isString(input)) {
+        input = spreadUrlObject(parseUrl(input));
+      }
+      else {
+        callback = options;
+        options = validateUrl(input);
+        input = { protocol: protocol };
+      }
+      if (isFunction(options)) {
+        callback = options;
+        options = null;
+      }
+
+      // Set defaults
+      options = Object.assign({
+        maxRedirects: exports.maxRedirects,
+        maxBodyLength: exports.maxBodyLength,
+      }, input, options);
+      options.nativeProtocols = nativeProtocols;
+      if (!isString(options.host) && !isString(options.hostname)) {
+        options.hostname = "::1";
+      }
+
+      assert.equal(options.protocol, protocol, "protocol mismatch");
+      debug("options", options);
+      return new RedirectableRequest(options, callback);
+    }
+
+    // Executes a GET request, following redirects
+    function get(input, options, callback) {
+      var wrappedRequest = wrappedProtocol.request(input, options, callback);
+      wrappedRequest.end();
+      return wrappedRequest;
+    }
+
+    // Expose the properties on the wrapped protocol
+    Object.defineProperties(wrappedProtocol, {
+      request: { value: request, configurable: true, enumerable: true, writable: true },
+      get: { value: get, configurable: true, enumerable: true, writable: true },
+    });
+  });
+  return exports;
+}
+
+function noop() { /* empty */ }
+
+function parseUrl(input) {
+  var parsed;
+  // istanbul ignore else
+  if (useNativeURL) {
+    parsed = new URL(input);
+  }
+  else {
+    // Ensure the URL is valid and absolute
+    parsed = validateUrl(url.parse(input));
+    if (!isString(parsed.protocol)) {
+      throw new InvalidUrlError({ input });
+    }
+  }
+  return parsed;
+}
+
+function resolveUrl(relative, base) {
+  // istanbul ignore next
+  return useNativeURL ? new URL(relative, base) : parseUrl(url.resolve(base, relative));
+}
+
+function validateUrl(input) {
+  if (/^\[/.test(input.hostname) && !/^\[[:0-9a-f]+\]$/i.test(input.hostname)) {
+    throw new InvalidUrlError({ input: input.href || input });
+  }
+  if (/^\[/.test(input.host) && !/^\[[:0-9a-f]+\](:\d+)?$/i.test(input.host)) {
+    throw new InvalidUrlError({ input: input.href || input });
+  }
+  return input;
+}
+
+function spreadUrlObject(urlObject, target) {
+  var spread = target || {};
+  for (var key of preservedUrlFields) {
+    spread[key] = urlObject[key];
+  }
+
+  // Fix IPv6 hostname
+  if (spread.hostname.startsWith("[")) {
+    spread.hostname = spread.hostname.slice(1, -1);
+  }
+  // Ensure port is a number
+  if (spread.port !== "") {
+    spread.port = Number(spread.port);
+  }
+  // Concatenate path
+  spread.path = spread.search ? spread.pathname + spread.search : spread.pathname;
+
+  return spread;
+}
+
+function removeMatchingHeaders(regex, headers) {
+  var lastValue;
+  for (var header in headers) {
+    if (regex.test(header)) {
+      lastValue = headers[header];
+      delete headers[header];
+    }
+  }
+  return (lastValue === null || typeof lastValue === "undefined") ?
+    undefined : String(lastValue).trim();
+}
+
+function createErrorType(code, message, baseClass) {
+  // Create constructor
+  function CustomError(properties) {
+    // istanbul ignore else
+    if (isFunction(Error.captureStackTrace)) {
+      Error.captureStackTrace(this, this.constructor);
+    }
+    Object.assign(this, properties || {});
+    this.code = code;
+    this.message = this.cause ? message + ": " + this.cause.message : message;
+  }
+
+  // Attach constructor and set default properties
+  CustomError.prototype = new (baseClass || Error)();
+  Object.defineProperties(CustomError.prototype, {
+    constructor: {
+      value: CustomError,
+      enumerable: false,
+    },
+    name: {
+      value: "Error [" + code + "]",
+      enumerable: false,
+    },
+  });
+  return CustomError;
+}
+
+function destroyRequest(request, error) {
+  for (var event of events) {
+    request.removeListener(event, eventHandlers[event]);
+  }
+  request.on("error", noop);
+  request.destroy(error);
+}
+
+function isSubdomain(subdomain, domain) {
+  assert(isString(subdomain) && isString(domain));
+  var dot = subdomain.length - domain.length - 1;
+  return dot > 0 && subdomain[dot] === "." && subdomain.endsWith(domain);
+}
+
+function isString(value) {
+  return typeof value === "string" || value instanceof String;
+}
+
+function isFunction(value) {
+  return typeof value === "function";
+}
+
+function isBuffer(value) {
+  return typeof value === "object" && ("length" in value);
+}
+
+function isURL(value) {
+  return URL && value instanceof URL;
+}
+
+// Exports
+module.exports = wrap({ http: http, https: https });
+module.exports.wrap = wrap;
diff --git a/backend/node_modules/follow-redirects/package.json b/backend/node_modules/follow-redirects/package.json
new file mode 100644
index 0000000..6f491e1
--- /dev/null
+++ b/backend/node_modules/follow-redirects/package.json
@@ -0,0 +1,58 @@
+{
+  "name": "follow-redirects",
+  "version": "1.15.9",
+  "description": "HTTP and HTTPS modules that follow redirects.",
+  "license": "MIT",
+  "main": "index.js",
+  "files": [
+    "*.js"
+  ],
+  "engines": {
+    "node": ">=4.0"
+  },
+  "scripts": {
+    "lint": "eslint *.js test",
+    "test": "nyc mocha"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+ssh://git@github.com/follow-redirects/follow-redirects.git"
+  },
+  "homepage": "https://github.com/follow-redirects/follow-redirects",
+  "bugs": {
+    "url": "https://github.com/follow-redirects/follow-redirects/issues"
+  },
+  "keywords": [
+    "http",
+    "https",
+    "url",
+    "redirect",
+    "client",
+    "location",
+    "utility"
+  ],
+  "author": "Ruben Verborgh <ruben@verborgh.org> (https://ruben.verborgh.org/)",
+  "contributors": [
+    "Olivier Lalonde <olalonde@gmail.com> (http://www.syskall.com)",
+    "James Talmage <james@talmage.io>"
+  ],
+  "funding": [
+    {
+      "type": "individual",
+      "url": "https://github.com/sponsors/RubenVerborgh"
+    }
+  ],
+  "peerDependenciesMeta": {
+    "debug": {
+      "optional": true
+    }
+  },
+  "devDependencies": {
+    "concat-stream": "^2.0.0",
+    "eslint": "^5.16.0",
+    "express": "^4.16.4",
+    "lolex": "^3.1.0",
+    "mocha": "^6.0.2",
+    "nyc": "^14.1.1"
+  }
+}
diff --git a/backend/node_modules/form-data/License b/backend/node_modules/form-data/License
new file mode 100644
index 0000000..c7ff12a
--- /dev/null
+++ b/backend/node_modules/form-data/License
@@ -0,0 +1,19 @@
+Copyright (c) 2012 Felix Geisendörfer (felix@debuggable.com) and contributors
+
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ THE SOFTWARE.
diff --git a/backend/node_modules/form-data/Readme.md b/backend/node_modules/form-data/Readme.md
new file mode 100644
index 0000000..b09df6a
--- /dev/null
+++ b/backend/node_modules/form-data/Readme.md
@@ -0,0 +1,358 @@
+# Form-Data [![NPM Module](https://img.shields.io/npm/v/form-data.svg)](https://www.npmjs.com/package/form-data) [![Join the chat at https://gitter.im/form-data/form-data](http://form-data.github.io/images/gitterbadge.svg)](https://gitter.im/form-data/form-data)
+
+A library to create readable ```"multipart/form-data"``` streams. Can be used to submit forms and file uploads to other web applications.
+
+The API of this library is inspired by the [XMLHttpRequest-2 FormData Interface][xhr2-fd].
+
+[xhr2-fd]: http://dev.w3.org/2006/webapi/XMLHttpRequest-2/Overview.html#the-formdata-interface
+
+[![Linux Build](https://img.shields.io/travis/form-data/form-data/master.svg?label=linux:6.x-12.x)](https://travis-ci.org/form-data/form-data)
+[![MacOS Build](https://img.shields.io/travis/form-data/form-data/master.svg?label=macos:6.x-12.x)](https://travis-ci.org/form-data/form-data)
+[![Windows Build](https://img.shields.io/travis/form-data/form-data/master.svg?label=windows:6.x-12.x)](https://travis-ci.org/form-data/form-data)
+
+[![Coverage Status](https://img.shields.io/coveralls/form-data/form-data/master.svg?label=code+coverage)](https://coveralls.io/github/form-data/form-data?branch=master)
+[![Dependency Status](https://img.shields.io/david/form-data/form-data.svg)](https://david-dm.org/form-data/form-data)
+
+## Install
+
+```
+npm install --save form-data
+```
+
+## Usage
+
+In this example we are constructing a form with 3 fields that contain a string,
+a buffer and a file stream.
+
+``` javascript
+var FormData = require('form-data');
+var fs = require('fs');
+
+var form = new FormData();
+form.append('my_field', 'my value');
+form.append('my_buffer', new Buffer(10));
+form.append('my_file', fs.createReadStream('/foo/bar.jpg'));
+```
+
+Also you can use http-response stream:
+
+``` javascript
+var FormData = require('form-data');
+var http = require('http');
+
+var form = new FormData();
+
+http.request('http://nodejs.org/images/logo.png', function(response) {
+  form.append('my_field', 'my value');
+  form.append('my_buffer', new Buffer(10));
+  form.append('my_logo', response);
+});
+```
+
+Or @mikeal's [request](https://github.com/request/request) stream:
+
+``` javascript
+var FormData = require('form-data');
+var request = require('request');
+
+var form = new FormData();
+
+form.append('my_field', 'my value');
+form.append('my_buffer', new Buffer(10));
+form.append('my_logo', request('http://nodejs.org/images/logo.png'));
+```
+
+In order to submit this form to a web application, call ```submit(url, [callback])``` method:
+
+``` javascript
+form.submit('http://example.org/', function(err, res) {
+  // res – response object (http.IncomingMessage)  //
+  res.resume();
+});
+
+```
+
+For more advanced request manipulations ```submit()``` method returns ```http.ClientRequest``` object, or you can choose from one of the alternative submission methods.
+
+### Custom options
+
+You can provide custom options, such as `maxDataSize`:
+
+``` javascript
+var FormData = require('form-data');
+
+var form = new FormData({ maxDataSize: 20971520 });
+form.append('my_field', 'my value');
+form.append('my_buffer', /* something big */);
+```
+
+List of available options could be found in [combined-stream](https://github.com/felixge/node-combined-stream/blob/master/lib/combined_stream.js#L7-L15)
+
+### Alternative submission methods
+
+You can use node's http client interface:
+
+``` javascript
+var http = require('http');
+
+var request = http.request({
+  method: 'post',
+  host: 'example.org',
+  path: '/upload',
+  headers: form.getHeaders()
+});
+
+form.pipe(request);
+
+request.on('response', function(res) {
+  console.log(res.statusCode);
+});
+```
+
+Or if you would prefer the `'Content-Length'` header to be set for you:
+
+``` javascript
+form.submit('example.org/upload', function(err, res) {
+  console.log(res.statusCode);
+});
+```
+
+To use custom headers and pre-known length in parts:
+
+``` javascript
+var CRLF = '\r\n';
+var form = new FormData();
+
+var options = {
+  header: CRLF + '--' + form.getBoundary() + CRLF + 'X-Custom-Header: 123' + CRLF + CRLF,
+  knownLength: 1
+};
+
+form.append('my_buffer', buffer, options);
+
+form.submit('http://example.com/', function(err, res) {
+  if (err) throw err;
+  console.log('Done');
+});
+```
+
+Form-Data can recognize and fetch all the required information from common types of streams (```fs.readStream```, ```http.response``` and ```mikeal's request```), for some other types of streams you'd need to provide "file"-related information manually:
+
+``` javascript
+someModule.stream(function(err, stdout, stderr) {
+  if (err) throw err;
+
+  var form = new FormData();
+
+  form.append('file', stdout, {
+    filename: 'unicycle.jpg', // ... or:
+    filepath: 'photos/toys/unicycle.jpg',
+    contentType: 'image/jpeg',
+    knownLength: 19806
+  });
+
+  form.submit('http://example.com/', function(err, res) {
+    if (err) throw err;
+    console.log('Done');
+  });
+});
+```
+
+The `filepath` property overrides `filename` and may contain a relative path. This is typically used when uploading [multiple files from a directory](https://wicg.github.io/entries-api/#dom-htmlinputelement-webkitdirectory).
+
+For edge cases, like POST request to URL with query string or to pass HTTP auth credentials, object can be passed to `form.submit()` as first parameter:
+
+``` javascript
+form.submit({
+  host: 'example.com',
+  path: '/probably.php?extra=params',
+  auth: 'username:password'
+}, function(err, res) {
+  console.log(res.statusCode);
+});
+```
+
+In case you need to also send custom HTTP headers with the POST request, you can use the `headers` key in first parameter of `form.submit()`:
+
+``` javascript
+form.submit({
+  host: 'example.com',
+  path: '/surelynot.php',
+  headers: {'x-test-header': 'test-header-value'}
+}, function(err, res) {
+  console.log(res.statusCode);
+});
+```
+
+### Methods
+
+- [_Void_ append( **String** _field_, **Mixed** _value_ [, **Mixed** _options_] )](https://github.com/form-data/form-data#void-append-string-field-mixed-value--mixed-options-).
+- [_Headers_ getHeaders( [**Headers** _userHeaders_] )](https://github.com/form-data/form-data#array-getheaders-array-userheaders-)
+- [_String_ getBoundary()](https://github.com/form-data/form-data#string-getboundary)
+- [_Void_ setBoundary()](https://github.com/form-data/form-data#void-setboundary)
+- [_Buffer_ getBuffer()](https://github.com/form-data/form-data#buffer-getbuffer)
+- [_Integer_ getLengthSync()](https://github.com/form-data/form-data#integer-getlengthsync)
+- [_Integer_ getLength( **function** _callback_ )](https://github.com/form-data/form-data#integer-getlength-function-callback-)
+- [_Boolean_ hasKnownLength()](https://github.com/form-data/form-data#boolean-hasknownlength)
+- [_Request_ submit( _params_, **function** _callback_ )](https://github.com/form-data/form-data#request-submit-params-function-callback-)
+- [_String_ toString()](https://github.com/form-data/form-data#string-tostring)
+
+#### _Void_ append( **String** _field_, **Mixed** _value_ [, **Mixed** _options_] )
+Append data to the form. You can submit about any format (string, integer, boolean, buffer, etc.). However, Arrays are not supported and need to be turned into strings by the user.
+```javascript
+var form = new FormData();
+form.append( 'my_string', 'my value' );
+form.append( 'my_integer', 1 );
+form.append( 'my_boolean', true );
+form.append( 'my_buffer', new Buffer(10) );
+form.append( 'my_array_as_json', JSON.stringify( ['bird','cute'] ) )
+```
+
+You may provide a string for options, or an object.
+```javascript
+// Set filename by providing a string for options
+form.append( 'my_file', fs.createReadStream('/foo/bar.jpg'), 'bar.jpg' );
+
+// provide an object.
+form.append( 'my_file', fs.createReadStream('/foo/bar.jpg'), {filename: 'bar.jpg', contentType: 'image/jpeg', knownLength: 19806} );
+```
+
+#### _Headers_ getHeaders( [**Headers** _userHeaders_] )
+This method adds the correct `content-type` header to the provided array of `userHeaders`.
+
+#### _String_ getBoundary()
+Return the boundary of the formData. By default, the boundary consists of 26 `-` followed by 24 numbers
+for example:
+```javascript
+--------------------------515890814546601021194782
+```
+
+#### _Void_ setBoundary(String _boundary_)
+Set the boundary string, overriding the default behavior described above.
+
+_Note: The boundary must be unique and may not appear in the data._
+
+#### _Buffer_ getBuffer()
+Return the full formdata request package, as a Buffer. You can insert this Buffer in e.g. Axios to send multipart data.
+```javascript
+var form = new FormData();
+form.append( 'my_buffer', Buffer.from([0x4a,0x42,0x20,0x52,0x6f,0x63,0x6b,0x73]) );
+form.append( 'my_file', fs.readFileSync('/foo/bar.jpg') );
+
+axios.post( 'https://example.com/path/to/api',
+            form.getBuffer(),
+            form.getHeaders()
+          )
+```
+**Note:** Because the output is of type Buffer, you can only append types that are accepted by Buffer: *string, Buffer, ArrayBuffer, Array, or Array-like Object*. A ReadStream for example will result in an error.
+
+#### _Integer_ getLengthSync()
+Same as `getLength` but synchronous.
+
+_Note: getLengthSync __doesn't__ calculate streams length._
+
+#### _Integer_ getLength( **function** _callback_ )
+Returns the `Content-Length` async. The callback is used to handle errors and continue once the length has been calculated
+```javascript
+this.getLength(function(err, length) {
+  if (err) {
+    this._error(err);
+    return;
+  }
+
+  // add content length
+  request.setHeader('Content-Length', length);
+
+  ...
+}.bind(this));
+```
+
+#### _Boolean_ hasKnownLength()
+Checks if the length of added values is known.
+
+#### _Request_ submit( _params_, **function** _callback_ )
+Submit the form to a web application.
+```javascript
+var form = new FormData();
+form.append( 'my_string', 'Hello World' );
+
+form.submit( 'http://example.com/', function(err, res) {
+  // res – response object (http.IncomingMessage)  //
+  res.resume();
+} );
+```
+
+#### _String_ toString()
+Returns the form data as a string. Don't use this if you are sending files or buffers, use `getBuffer()` instead.
+
+### Integration with other libraries
+
+#### Request
+
+Form submission using  [request](https://github.com/request/request):
+
+```javascript
+var formData = {
+  my_field: 'my_value',
+  my_file: fs.createReadStream(__dirname + '/unicycle.jpg'),
+};
+
+request.post({url:'http://service.com/upload', formData: formData}, function(err, httpResponse, body) {
+  if (err) {
+    return console.error('upload failed:', err);
+  }
+  console.log('Upload successful!  Server responded with:', body);
+});
+```
+
+For more details see [request readme](https://github.com/request/request#multipartform-data-multipart-form-uploads).
+
+#### node-fetch
+
+You can also submit a form using [node-fetch](https://github.com/bitinn/node-fetch):
+
+```javascript
+var form = new FormData();
+
+form.append('a', 1);
+
+fetch('http://example.com', { method: 'POST', body: form })
+    .then(function(res) {
+        return res.json();
+    }).then(function(json) {
+        console.log(json);
+    });
+```
+
+#### axios
+
+In Node.js you can post a file using [axios](https://github.com/axios/axios):
+```javascript
+const form = new FormData();
+const stream = fs.createReadStream(PATH_TO_FILE);
+
+form.append('image', stream);
+
+// In Node.js environment you need to set boundary in the header field 'Content-Type' by calling method `getHeaders`
+const formHeaders = form.getHeaders();
+
+axios.post('http://example.com', form, {
+  headers: {
+    ...formHeaders,
+  },
+})
+.then(response => response)
+.catch(error => error)
+```
+
+## Notes
+
+- ```getLengthSync()``` method DOESN'T calculate length for streams, use ```knownLength``` options as workaround.
+- ```getLength(cb)``` will send an error as first parameter of callback if stream length cannot be calculated (e.g. send in custom streams w/o using ```knownLength```).
+- ```submit``` will not add `content-length` if form length is unknown or not calculable.
+- Starting version `2.x` FormData has dropped support for `node@0.10.x`.
+- Starting version `3.x` FormData has dropped support for `node@4.x`.
+
+## License
+
+Form-Data is released under the [MIT](License) license.
diff --git a/backend/node_modules/form-data/index.d.ts b/backend/node_modules/form-data/index.d.ts
new file mode 100644
index 0000000..295e9e9
--- /dev/null
+++ b/backend/node_modules/form-data/index.d.ts
@@ -0,0 +1,62 @@
+// Definitions by: Carlos Ballesteros Velasco <https://github.com/soywiz>
+//                 Leon Yu <https://github.com/leonyu>
+//                 BendingBender <https://github.com/BendingBender>
+//                 Maple Miao <https://github.com/mapleeit>
+
+/// <reference types="node" />
+import * as stream from 'stream';
+import * as http from 'http';
+
+export = FormData;
+
+// Extracted because @types/node doesn't export interfaces.
+interface ReadableOptions {
+  highWaterMark?: number;
+  encoding?: string;
+  objectMode?: boolean;
+  read?(this: stream.Readable, size: number): void;
+  destroy?(this: stream.Readable, error: Error | null, callback: (error: Error | null) => void): void;
+  autoDestroy?: boolean;
+}
+
+interface Options extends ReadableOptions {
+  writable?: boolean;
+  readable?: boolean;
+  dataSize?: number;
+  maxDataSize?: number;
+  pauseStreams?: boolean;
+}
+
+declare class FormData extends stream.Readable {
+  constructor(options?: Options);
+  append(key: string, value: any, options?: FormData.AppendOptions | string): void;
+  getHeaders(userHeaders?: FormData.Headers): FormData.Headers;
+  submit(
+    params: string | FormData.SubmitOptions,
+    callback?: (error: Error | null, response: http.IncomingMessage) => void
+  ): http.ClientRequest;
+  getBuffer(): Buffer;
+  setBoundary(boundary: string): void;
+  getBoundary(): string;
+  getLength(callback: (err: Error | null, length: number) => void): void;
+  getLengthSync(): number;
+  hasKnownLength(): boolean;
+}
+
+declare namespace FormData {
+  interface Headers {
+    [key: string]: any;
+  }
+
+  interface AppendOptions {
+    header?: string | Headers;
+    knownLength?: number;
+    filename?: string;
+    filepath?: string;
+    contentType?: string;
+  }
+
+  interface SubmitOptions extends http.RequestOptions {
+    protocol?: 'https:' | 'http:';
+  }
+}
diff --git a/backend/node_modules/form-data/lib/browser.js b/backend/node_modules/form-data/lib/browser.js
new file mode 100644
index 0000000..09e7c70
--- /dev/null
+++ b/backend/node_modules/form-data/lib/browser.js
@@ -0,0 +1,2 @@
+/* eslint-env browser */
+module.exports = typeof self == 'object' ? self.FormData : window.FormData;
diff --git a/backend/node_modules/form-data/lib/form_data.js b/backend/node_modules/form-data/lib/form_data.js
new file mode 100644
index 0000000..e05c8f1
--- /dev/null
+++ b/backend/node_modules/form-data/lib/form_data.js
@@ -0,0 +1,501 @@
+var CombinedStream = require('combined-stream');
+var util = require('util');
+var path = require('path');
+var http = require('http');
+var https = require('https');
+var parseUrl = require('url').parse;
+var fs = require('fs');
+var Stream = require('stream').Stream;
+var mime = require('mime-types');
+var asynckit = require('asynckit');
+var populate = require('./populate.js');
+
+// Public API
+module.exports = FormData;
+
+// make it a Stream
+util.inherits(FormData, CombinedStream);
+
+/**
+ * Create readable "multipart/form-data" streams.
+ * Can be used to submit forms
+ * and file uploads to other web applications.
+ *
+ * @constructor
+ * @param {Object} options - Properties to be added/overriden for FormData and CombinedStream
+ */
+function FormData(options) {
+  if (!(this instanceof FormData)) {
+    return new FormData(options);
+  }
+
+  this._overheadLength = 0;
+  this._valueLength = 0;
+  this._valuesToMeasure = [];
+
+  CombinedStream.call(this);
+
+  options = options || {};
+  for (var option in options) {
+    this[option] = options[option];
+  }
+}
+
+FormData.LINE_BREAK = '\r\n';
+FormData.DEFAULT_CONTENT_TYPE = 'application/octet-stream';
+
+FormData.prototype.append = function(field, value, options) {
+
+  options = options || {};
+
+  // allow filename as single option
+  if (typeof options == 'string') {
+    options = {filename: options};
+  }
+
+  var append = CombinedStream.prototype.append.bind(this);
+
+  // all that streamy business can't handle numbers
+  if (typeof value == 'number') {
+    value = '' + value;
+  }
+
+  // https://github.com/felixge/node-form-data/issues/38
+  if (Array.isArray(value)) {
+    // Please convert your array into string
+    // the way web server expects it
+    this._error(new Error('Arrays are not supported.'));
+    return;
+  }
+
+  var header = this._multiPartHeader(field, value, options);
+  var footer = this._multiPartFooter();
+
+  append(header);
+  append(value);
+  append(footer);
+
+  // pass along options.knownLength
+  this._trackLength(header, value, options);
+};
+
+FormData.prototype._trackLength = function(header, value, options) {
+  var valueLength = 0;
+
+  // used w/ getLengthSync(), when length is known.
+  // e.g. for streaming directly from a remote server,
+  // w/ a known file a size, and not wanting to wait for
+  // incoming file to finish to get its size.
+  if (options.knownLength != null) {
+    valueLength += +options.knownLength;
+  } else if (Buffer.isBuffer(value)) {
+    valueLength = value.length;
+  } else if (typeof value === 'string') {
+    valueLength = Buffer.byteLength(value);
+  }
+
+  this._valueLength += valueLength;
+
+  // @check why add CRLF? does this account for custom/multiple CRLFs?
+  this._overheadLength +=
+    Buffer.byteLength(header) +
+    FormData.LINE_BREAK.length;
+
+  // empty or either doesn't have path or not an http response or not a stream
+  if (!value || ( !value.path && !(value.readable && value.hasOwnProperty('httpVersion')) && !(value instanceof Stream))) {
+    return;
+  }
+
+  // no need to bother with the length
+  if (!options.knownLength) {
+    this._valuesToMeasure.push(value);
+  }
+};
+
+FormData.prototype._lengthRetriever = function(value, callback) {
+
+  if (value.hasOwnProperty('fd')) {
+
+    // take read range into a account
+    // `end` = Infinity –> read file till the end
+    //
+    // TODO: Looks like there is bug in Node fs.createReadStream
+    // it doesn't respect `end` options without `start` options
+    // Fix it when node fixes it.
+    // https://github.com/joyent/node/issues/7819
+    if (value.end != undefined && value.end != Infinity && value.start != undefined) {
+
+      // when end specified
+      // no need to calculate range
+      // inclusive, starts with 0
+      callback(null, value.end + 1 - (value.start ? value.start : 0));
+
+    // not that fast snoopy
+    } else {
+      // still need to fetch file size from fs
+      fs.stat(value.path, function(err, stat) {
+
+        var fileSize;
+
+        if (err) {
+          callback(err);
+          return;
+        }
+
+        // update final size based on the range options
+        fileSize = stat.size - (value.start ? value.start : 0);
+        callback(null, fileSize);
+      });
+    }
+
+  // or http response
+  } else if (value.hasOwnProperty('httpVersion')) {
+    callback(null, +value.headers['content-length']);
+
+  // or request stream http://github.com/mikeal/request
+  } else if (value.hasOwnProperty('httpModule')) {
+    // wait till response come back
+    value.on('response', function(response) {
+      value.pause();
+      callback(null, +response.headers['content-length']);
+    });
+    value.resume();
+
+  // something else
+  } else {
+    callback('Unknown stream');
+  }
+};
+
+FormData.prototype._multiPartHeader = function(field, value, options) {
+  // custom header specified (as string)?
+  // it becomes responsible for boundary
+  // (e.g. to handle extra CRLFs on .NET servers)
+  if (typeof options.header == 'string') {
+    return options.header;
+  }
+
+  var contentDisposition = this._getContentDisposition(value, options);
+  var contentType = this._getContentType(value, options);
+
+  var contents = '';
+  var headers  = {
+    // add custom disposition as third element or keep it two elements if not
+    'Content-Disposition': ['form-data', 'name="' + field + '"'].concat(contentDisposition || []),
+    // if no content type. allow it to be empty array
+    'Content-Type': [].concat(contentType || [])
+  };
+
+  // allow custom headers.
+  if (typeof options.header == 'object') {
+    populate(headers, options.header);
+  }
+
+  var header;
+  for (var prop in headers) {
+    if (!headers.hasOwnProperty(prop)) continue;
+    header = headers[prop];
+
+    // skip nullish headers.
+    if (header == null) {
+      continue;
+    }
+
+    // convert all headers to arrays.
+    if (!Array.isArray(header)) {
+      header = [header];
+    }
+
+    // add non-empty headers.
+    if (header.length) {
+      contents += prop + ': ' + header.join('; ') + FormData.LINE_BREAK;
+    }
+  }
+
+  return '--' + this.getBoundary() + FormData.LINE_BREAK + contents + FormData.LINE_BREAK;
+};
+
+FormData.prototype._getContentDisposition = function(value, options) {
+
+  var filename
+    , contentDisposition
+    ;
+
+  if (typeof options.filepath === 'string') {
+    // custom filepath for relative paths
+    filename = path.normalize(options.filepath).replace(/\\/g, '/');
+  } else if (options.filename || value.name || value.path) {
+    // custom filename take precedence
+    // formidable and the browser add a name property
+    // fs- and request- streams have path property
+    filename = path.basename(options.filename || value.name || value.path);
+  } else if (value.readable && value.hasOwnProperty('httpVersion')) {
+    // or try http response
+    filename = path.basename(value.client._httpMessage.path || '');
+  }
+
+  if (filename) {
+    contentDisposition = 'filename="' + filename + '"';
+  }
+
+  return contentDisposition;
+};
+
+FormData.prototype._getContentType = function(value, options) {
+
+  // use custom content-type above all
+  var contentType = options.contentType;
+
+  // or try `name` from formidable, browser
+  if (!contentType && value.name) {
+    contentType = mime.lookup(value.name);
+  }
+
+  // or try `path` from fs-, request- streams
+  if (!contentType && value.path) {
+    contentType = mime.lookup(value.path);
+  }
+
+  // or if it's http-reponse
+  if (!contentType && value.readable && value.hasOwnProperty('httpVersion')) {
+    contentType = value.headers['content-type'];
+  }
+
+  // or guess it from the filepath or filename
+  if (!contentType && (options.filepath || options.filename)) {
+    contentType = mime.lookup(options.filepath || options.filename);
+  }
+
+  // fallback to the default content type if `value` is not simple value
+  if (!contentType && typeof value == 'object') {
+    contentType = FormData.DEFAULT_CONTENT_TYPE;
+  }
+
+  return contentType;
+};
+
+FormData.prototype._multiPartFooter = function() {
+  return function(next) {
+    var footer = FormData.LINE_BREAK;
+
+    var lastPart = (this._streams.length === 0);
+    if (lastPart) {
+      footer += this._lastBoundary();
+    }
+
+    next(footer);
+  }.bind(this);
+};
+
+FormData.prototype._lastBoundary = function() {
+  return '--' + this.getBoundary() + '--' + FormData.LINE_BREAK;
+};
+
+FormData.prototype.getHeaders = function(userHeaders) {
+  var header;
+  var formHeaders = {
+    'content-type': 'multipart/form-data; boundary=' + this.getBoundary()
+  };
+
+  for (header in userHeaders) {
+    if (userHeaders.hasOwnProperty(header)) {
+      formHeaders[header.toLowerCase()] = userHeaders[header];
+    }
+  }
+
+  return formHeaders;
+};
+
+FormData.prototype.setBoundary = function(boundary) {
+  this._boundary = boundary;
+};
+
+FormData.prototype.getBoundary = function() {
+  if (!this._boundary) {
+    this._generateBoundary();
+  }
+
+  return this._boundary;
+};
+
+FormData.prototype.getBuffer = function() {
+  var dataBuffer = new Buffer.alloc( 0 );
+  var boundary = this.getBoundary();
+
+  // Create the form content. Add Line breaks to the end of data.
+  for (var i = 0, len = this._streams.length; i < len; i++) {
+    if (typeof this._streams[i] !== 'function') {
+
+      // Add content to the buffer.
+      if(Buffer.isBuffer(this._streams[i])) {
+        dataBuffer = Buffer.concat( [dataBuffer, this._streams[i]]);
+      }else {
+        dataBuffer = Buffer.concat( [dataBuffer, Buffer.from(this._streams[i])]);
+      }
+
+      // Add break after content.
+      if (typeof this._streams[i] !== 'string' || this._streams[i].substring( 2, boundary.length + 2 ) !== boundary) {
+        dataBuffer = Buffer.concat( [dataBuffer, Buffer.from(FormData.LINE_BREAK)] );
+      }
+    }
+  }
+
+  // Add the footer and return the Buffer object.
+  return Buffer.concat( [dataBuffer, Buffer.from(this._lastBoundary())] );
+};
+
+FormData.prototype._generateBoundary = function() {
+  // This generates a 50 character boundary similar to those used by Firefox.
+  // They are optimized for boyer-moore parsing.
+  var boundary = '--------------------------';
+  for (var i = 0; i < 24; i++) {
+    boundary += Math.floor(Math.random() * 10).toString(16);
+  }
+
+  this._boundary = boundary;
+};
+
+// Note: getLengthSync DOESN'T calculate streams length
+// As workaround one can calculate file size manually
+// and add it as knownLength option
+FormData.prototype.getLengthSync = function() {
+  var knownLength = this._overheadLength + this._valueLength;
+
+  // Don't get confused, there are 3 "internal" streams for each keyval pair
+  // so it basically checks if there is any value added to the form
+  if (this._streams.length) {
+    knownLength += this._lastBoundary().length;
+  }
+
+  // https://github.com/form-data/form-data/issues/40
+  if (!this.hasKnownLength()) {
+    // Some async length retrievers are present
+    // therefore synchronous length calculation is false.
+    // Please use getLength(callback) to get proper length
+    this._error(new Error('Cannot calculate proper length in synchronous way.'));
+  }
+
+  return knownLength;
+};
+
+// Public API to check if length of added values is known
+// https://github.com/form-data/form-data/issues/196
+// https://github.com/form-data/form-data/issues/262
+FormData.prototype.hasKnownLength = function() {
+  var hasKnownLength = true;
+
+  if (this._valuesToMeasure.length) {
+    hasKnownLength = false;
+  }
+
+  return hasKnownLength;
+};
+
+FormData.prototype.getLength = function(cb) {
+  var knownLength = this._overheadLength + this._valueLength;
+
+  if (this._streams.length) {
+    knownLength += this._lastBoundary().length;
+  }
+
+  if (!this._valuesToMeasure.length) {
+    process.nextTick(cb.bind(this, null, knownLength));
+    return;
+  }
+
+  asynckit.parallel(this._valuesToMeasure, this._lengthRetriever, function(err, values) {
+    if (err) {
+      cb(err);
+      return;
+    }
+
+    values.forEach(function(length) {
+      knownLength += length;
+    });
+
+    cb(null, knownLength);
+  });
+};
+
+FormData.prototype.submit = function(params, cb) {
+  var request
+    , options
+    , defaults = {method: 'post'}
+    ;
+
+  // parse provided url if it's string
+  // or treat it as options object
+  if (typeof params == 'string') {
+
+    params = parseUrl(params);
+    options = populate({
+      port: params.port,
+      path: params.pathname,
+      host: params.hostname,
+      protocol: params.protocol
+    }, defaults);
+
+  // use custom params
+  } else {
+
+    options = populate(params, defaults);
+    // if no port provided use default one
+    if (!options.port) {
+      options.port = options.protocol == 'https:' ? 443 : 80;
+    }
+  }
+
+  // put that good code in getHeaders to some use
+  options.headers = this.getHeaders(params.headers);
+
+  // https if specified, fallback to http in any other case
+  if (options.protocol == 'https:') {
+    request = https.request(options);
+  } else {
+    request = http.request(options);
+  }
+
+  // get content length and fire away
+  this.getLength(function(err, length) {
+    if (err && err !== 'Unknown stream') {
+      this._error(err);
+      return;
+    }
+
+    // add content length
+    if (length) {
+      request.setHeader('Content-Length', length);
+    }
+
+    this.pipe(request);
+    if (cb) {
+      var onResponse;
+
+      var callback = function (error, responce) {
+        request.removeListener('error', callback);
+        request.removeListener('response', onResponse);
+
+        return cb.call(this, error, responce);
+      };
+
+      onResponse = callback.bind(this, null);
+
+      request.on('error', callback);
+      request.on('response', onResponse);
+    }
+  }.bind(this));
+
+  return request;
+};
+
+FormData.prototype._error = function(err) {
+  if (!this.error) {
+    this.error = err;
+    this.pause();
+    this.emit('error', err);
+  }
+};
+
+FormData.prototype.toString = function () {
+  return '[object FormData]';
+};
diff --git a/backend/node_modules/form-data/lib/populate.js b/backend/node_modules/form-data/lib/populate.js
new file mode 100644
index 0000000..4d35738
--- /dev/null
+++ b/backend/node_modules/form-data/lib/populate.js
@@ -0,0 +1,10 @@
+// populates missing values
+module.exports = function(dst, src) {
+
+  Object.keys(src).forEach(function(prop)
+  {
+    dst[prop] = dst[prop] || src[prop];
+  });
+
+  return dst;
+};
diff --git a/backend/node_modules/form-data/package.json b/backend/node_modules/form-data/package.json
new file mode 100644
index 0000000..9bd12c9
--- /dev/null
+++ b/backend/node_modules/form-data/package.json
@@ -0,0 +1,71 @@
+{
+  "author": "Felix Geisendörfer <felix@debuggable.com> (http://debuggable.com/)",
+  "name": "form-data",
+  "description": "A library to create readable \"multipart/form-data\" streams. Can be used to submit forms and file uploads to other web applications.",
+  "version": "4.0.1",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/form-data/form-data.git"
+  },
+  "main": "./lib/form_data",
+  "browser": "./lib/browser",
+  "typings": "./index.d.ts",
+  "scripts": {
+    "pretest": "npm run lint",
+    "pretests-only": "rimraf coverage test/tmp",
+    "tests-only": "istanbul cover test/run.js",
+    "posttests-only": "istanbul report lcov text",
+    "test": "npm run tests-only",
+    "posttest": "npx npm@'>=10.2' audit --production",
+    "lint": "eslint --ext=js,mjs .",
+    "report": "istanbul report lcov text",
+    "ci-lint": "is-node-modern 8 && npm run lint || is-node-not-modern 8",
+    "ci-test": "npm run tests-only && npm run browser && npm run report",
+    "predebug": "rimraf coverage test/tmp",
+    "debug": "verbose=1 ./test/run.js",
+    "browser": "browserify -t browserify-istanbul test/run-browser.js | obake --coverage",
+    "check": "istanbul check-coverage coverage/coverage*.json",
+    "files": "pkgfiles --sort=name",
+    "get-version": "node -e \"console.log(require('./package.json').version)\"",
+    "update-readme": "sed -i.bak 's/\\/master\\.svg/\\/v'$(npm --silent run get-version)'.svg/g' README.md",
+    "restore-readme": "mv README.md.bak README.md",
+    "prepublish": "in-publish && npm run update-readme || not-in-publish",
+    "postpublish": "npm run restore-readme"
+  },
+  "pre-commit": [
+    "lint",
+    "ci-test",
+    "check"
+  ],
+  "engines": {
+    "node": ">= 6"
+  },
+  "dependencies": {
+    "asynckit": "^0.4.0",
+    "combined-stream": "^1.0.8",
+    "mime-types": "^2.1.12"
+  },
+  "devDependencies": {
+    "@types/node": "^12.0.10",
+    "browserify": "^13.1.1",
+    "browserify-istanbul": "^2.0.0",
+    "coveralls": "^3.0.4",
+    "cross-spawn": "^6.0.5",
+    "eslint": "^6.0.1",
+    "fake": "^0.2.2",
+    "far": "^0.0.7",
+    "formidable": "^1.0.17",
+    "in-publish": "^2.0.0",
+    "is-node-modern": "^1.0.0",
+    "istanbul": "^0.4.5",
+    "obake": "^0.1.2",
+    "puppeteer": "^1.19.0",
+    "pkgfiles": "^2.3.0",
+    "pre-commit": "^1.1.3",
+    "request": "^2.88.0",
+    "rimraf": "^2.7.1",
+    "tape": "^4.6.2",
+    "typescript": "^3.5.2"
+  },
+  "license": "MIT"
+}
diff --git a/backend/node_modules/forwarded/HISTORY.md b/backend/node_modules/forwarded/HISTORY.md
new file mode 100644
index 0000000..381e6aa
--- /dev/null
+++ b/backend/node_modules/forwarded/HISTORY.md
@@ -0,0 +1,21 @@
+0.2.0 / 2021-05-31
+==================
+
+  * Use `req.socket` over deprecated `req.connection`
+
+0.1.2 / 2017-09-14
+==================
+
+  * perf: improve header parsing
+  * perf: reduce overhead when no `X-Forwarded-For` header
+
+0.1.1 / 2017-09-10
+==================
+
+  * Fix trimming leading / trailing OWS
+  * perf: hoist regular expression
+
+0.1.0 / 2014-09-21
+==================
+
+  * Initial release
diff --git a/backend/node_modules/forwarded/LICENSE b/backend/node_modules/forwarded/LICENSE
new file mode 100644
index 0000000..84441fb
--- /dev/null
+++ b/backend/node_modules/forwarded/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2014-2017 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/forwarded/README.md b/backend/node_modules/forwarded/README.md
new file mode 100644
index 0000000..fdd220b
--- /dev/null
+++ b/backend/node_modules/forwarded/README.md
@@ -0,0 +1,57 @@
+# forwarded
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][ci-image]][ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Parse HTTP X-Forwarded-For header
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install forwarded
+```
+
+## API
+
+```js
+var forwarded = require('forwarded')
+```
+
+### forwarded(req)
+
+```js
+var addresses = forwarded(req)
+```
+
+Parse the `X-Forwarded-For` header from the request. Returns an array
+of the addresses, including the socket address for the `req`, in reverse
+order (i.e. index `0` is the socket address and the last index is the
+furthest address, typically the end-user).
+
+## Testing
+
+```sh
+$ npm test
+```
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://badgen.net/github/checks/jshttp/forwarded/master?label=ci
+[ci-url]: https://github.com/jshttp/forwarded/actions?query=workflow%3Aci
+[npm-image]: https://img.shields.io/npm/v/forwarded.svg
+[npm-url]: https://npmjs.org/package/forwarded
+[node-version-image]: https://img.shields.io/node/v/forwarded.svg
+[node-version-url]: https://nodejs.org/en/download/
+[coveralls-image]: https://img.shields.io/coveralls/jshttp/forwarded/master.svg
+[coveralls-url]: https://coveralls.io/r/jshttp/forwarded?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/forwarded.svg
+[downloads-url]: https://npmjs.org/package/forwarded
diff --git a/backend/node_modules/forwarded/index.js b/backend/node_modules/forwarded/index.js
new file mode 100644
index 0000000..b2b6bdd
--- /dev/null
+++ b/backend/node_modules/forwarded/index.js
@@ -0,0 +1,90 @@
+/*!
+ * forwarded
+ * Copyright(c) 2014-2017 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = forwarded
+
+/**
+ * Get all addresses in the request, using the `X-Forwarded-For` header.
+ *
+ * @param {object} req
+ * @return {array}
+ * @public
+ */
+
+function forwarded (req) {
+  if (!req) {
+    throw new TypeError('argument req is required')
+  }
+
+  // simple header parsing
+  var proxyAddrs = parse(req.headers['x-forwarded-for'] || '')
+  var socketAddr = getSocketAddr(req)
+  var addrs = [socketAddr].concat(proxyAddrs)
+
+  // return all addresses
+  return addrs
+}
+
+/**
+ * Get the socket address for a request.
+ *
+ * @param {object} req
+ * @return {string}
+ * @private
+ */
+
+function getSocketAddr (req) {
+  return req.socket
+    ? req.socket.remoteAddress
+    : req.connection.remoteAddress
+}
+
+/**
+ * Parse the X-Forwarded-For header.
+ *
+ * @param {string} header
+ * @private
+ */
+
+function parse (header) {
+  var end = header.length
+  var list = []
+  var start = header.length
+
+  // gather addresses, backwards
+  for (var i = header.length - 1; i >= 0; i--) {
+    switch (header.charCodeAt(i)) {
+      case 0x20: /*   */
+        if (start === end) {
+          start = end = i
+        }
+        break
+      case 0x2c: /* , */
+        if (start !== end) {
+          list.push(header.substring(start, end))
+        }
+        start = end = i
+        break
+      default:
+        start = i
+        break
+    }
+  }
+
+  // final address
+  if (start !== end) {
+    list.push(header.substring(start, end))
+  }
+
+  return list
+}
diff --git a/backend/node_modules/forwarded/package.json b/backend/node_modules/forwarded/package.json
new file mode 100644
index 0000000..bf9c7d6
--- /dev/null
+++ b/backend/node_modules/forwarded/package.json
@@ -0,0 +1,45 @@
+{
+  "name": "forwarded",
+  "description": "Parse HTTP X-Forwarded-For header",
+  "version": "0.2.0",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>"
+  ],
+  "license": "MIT",
+  "keywords": [
+    "x-forwarded-for",
+    "http",
+    "req"
+  ],
+  "repository": "jshttp/forwarded",
+  "devDependencies": {
+    "beautify-benchmark": "0.2.4",
+    "benchmark": "2.1.4",
+    "deep-equal": "1.0.1",
+    "eslint": "7.27.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.23.4",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "4.3.1",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "8.4.0",
+    "nyc": "15.1.0"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "README.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "bench": "node benchmark/index.js",
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "version": "node scripts/version-history.js && git add HISTORY.md"
+  }
+}
diff --git a/backend/node_modules/fresh/HISTORY.md b/backend/node_modules/fresh/HISTORY.md
new file mode 100644
index 0000000..4586996
--- /dev/null
+++ b/backend/node_modules/fresh/HISTORY.md
@@ -0,0 +1,70 @@
+0.5.2 / 2017-09-13
+==================
+
+  * Fix regression matching multiple ETags in `If-None-Match`
+  * perf: improve `If-None-Match` token parsing
+
+0.5.1 / 2017-09-11
+==================
+
+  * Fix handling of modified headers with invalid dates
+  * perf: improve ETag match loop
+
+0.5.0 / 2017-02-21
+==================
+
+  * Fix incorrect result when `If-None-Match` has both `*` and ETags
+  * Fix weak `ETag` matching to match spec
+  * perf: delay reading header values until needed
+  * perf: skip checking modified time if ETag check failed
+  * perf: skip parsing `If-None-Match` when no `ETag` header
+  * perf: use `Date.parse` instead of `new Date`
+
+0.4.0 / 2017-02-05
+==================
+
+  * Fix false detection of `no-cache` request directive
+  * perf: enable strict mode
+  * perf: hoist regular expressions
+  * perf: remove duplicate conditional
+  * perf: remove unnecessary boolean coercions
+
+0.3.0 / 2015-05-12
+==================
+
+  * Add weak `ETag` matching support
+
+0.2.4 / 2014-09-07
+==================
+
+  * Support Node.js 0.6
+
+0.2.3 / 2014-09-07
+==================
+
+  * Move repository to jshttp
+
+0.2.2 / 2014-02-19
+==================
+
+  * Revert "Fix for blank page on Safari reload"
+
+0.2.1 / 2014-01-29
+==================
+
+  * Fix for blank page on Safari reload
+
+0.2.0 / 2013-08-11
+==================
+
+  * Return stale for `Cache-Control: no-cache`
+
+0.1.0 / 2012-06-15
+==================
+
+  * Add `If-None-Match: *` support
+
+0.0.1 / 2012-06-10
+==================
+
+  * Initial release
diff --git a/backend/node_modules/fresh/LICENSE b/backend/node_modules/fresh/LICENSE
new file mode 100644
index 0000000..1434ade
--- /dev/null
+++ b/backend/node_modules/fresh/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2012 TJ Holowaychuk <tj@vision-media.ca>
+Copyright (c) 2016-2017 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/fresh/README.md b/backend/node_modules/fresh/README.md
new file mode 100644
index 0000000..1c1c680
--- /dev/null
+++ b/backend/node_modules/fresh/README.md
@@ -0,0 +1,119 @@
+# fresh
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+HTTP response freshness testing
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```
+$ npm install fresh
+```
+
+## API
+
+<!-- eslint-disable no-unused-vars -->
+
+```js
+var fresh = require('fresh')
+```
+
+### fresh(reqHeaders, resHeaders)
+
+Check freshness of the response using request and response headers.
+
+When the response is still "fresh" in the client's cache `true` is
+returned, otherwise `false` is returned to indicate that the client
+cache is now stale and the full response should be sent.
+
+When a client sends the `Cache-Control: no-cache` request header to
+indicate an end-to-end reload request, this module will return `false`
+to make handling these requests transparent.
+
+## Known Issues
+
+This module is designed to only follow the HTTP specifications, not
+to work-around all kinda of client bugs (especially since this module
+typically does not recieve enough information to understand what the
+client actually is).
+
+There is a known issue that in certain versions of Safari, Safari
+will incorrectly make a request that allows this module to validate
+freshness of the resource even when Safari does not have a
+representation of the resource in the cache. The module
+[jumanji](https://www.npmjs.com/package/jumanji) can be used in
+an Express application to work-around this issue and also provides
+links to further reading on this Safari bug.
+
+## Example
+
+### API usage
+
+<!-- eslint-disable no-redeclare, no-undef -->
+
+```js
+var reqHeaders = { 'if-none-match': '"foo"' }
+var resHeaders = { 'etag': '"bar"' }
+fresh(reqHeaders, resHeaders)
+// => false
+
+var reqHeaders = { 'if-none-match': '"foo"' }
+var resHeaders = { 'etag': '"foo"' }
+fresh(reqHeaders, resHeaders)
+// => true
+```
+
+### Using with Node.js http server
+
+```js
+var fresh = require('fresh')
+var http = require('http')
+
+var server = http.createServer(function (req, res) {
+  // perform server logic
+  // ... including adding ETag / Last-Modified response headers
+
+  if (isFresh(req, res)) {
+    // client has a fresh copy of resource
+    res.statusCode = 304
+    res.end()
+    return
+  }
+
+  // send the resource
+  res.statusCode = 200
+  res.end('hello, world!')
+})
+
+function isFresh (req, res) {
+  return fresh(req.headers, {
+    'etag': res.getHeader('ETag'),
+    'last-modified': res.getHeader('Last-Modified')
+  })
+}
+
+server.listen(3000)
+```
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/fresh.svg
+[npm-url]: https://npmjs.org/package/fresh
+[node-version-image]: https://img.shields.io/node/v/fresh.svg
+[node-version-url]: https://nodejs.org/en/
+[travis-image]: https://img.shields.io/travis/jshttp/fresh/master.svg
+[travis-url]: https://travis-ci.org/jshttp/fresh
+[coveralls-image]: https://img.shields.io/coveralls/jshttp/fresh/master.svg
+[coveralls-url]: https://coveralls.io/r/jshttp/fresh?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/fresh.svg
+[downloads-url]: https://npmjs.org/package/fresh
diff --git a/backend/node_modules/fresh/index.js b/backend/node_modules/fresh/index.js
new file mode 100644
index 0000000..d154f5a
--- /dev/null
+++ b/backend/node_modules/fresh/index.js
@@ -0,0 +1,137 @@
+/*!
+ * fresh
+ * Copyright(c) 2012 TJ Holowaychuk
+ * Copyright(c) 2016-2017 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * RegExp to check for no-cache token in Cache-Control.
+ * @private
+ */
+
+var CACHE_CONTROL_NO_CACHE_REGEXP = /(?:^|,)\s*?no-cache\s*?(?:,|$)/
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = fresh
+
+/**
+ * Check freshness of the response using request and response headers.
+ *
+ * @param {Object} reqHeaders
+ * @param {Object} resHeaders
+ * @return {Boolean}
+ * @public
+ */
+
+function fresh (reqHeaders, resHeaders) {
+  // fields
+  var modifiedSince = reqHeaders['if-modified-since']
+  var noneMatch = reqHeaders['if-none-match']
+
+  // unconditional request
+  if (!modifiedSince && !noneMatch) {
+    return false
+  }
+
+  // Always return stale when Cache-Control: no-cache
+  // to support end-to-end reload requests
+  // https://tools.ietf.org/html/rfc2616#section-14.9.4
+  var cacheControl = reqHeaders['cache-control']
+  if (cacheControl && CACHE_CONTROL_NO_CACHE_REGEXP.test(cacheControl)) {
+    return false
+  }
+
+  // if-none-match
+  if (noneMatch && noneMatch !== '*') {
+    var etag = resHeaders['etag']
+
+    if (!etag) {
+      return false
+    }
+
+    var etagStale = true
+    var matches = parseTokenList(noneMatch)
+    for (var i = 0; i < matches.length; i++) {
+      var match = matches[i]
+      if (match === etag || match === 'W/' + etag || 'W/' + match === etag) {
+        etagStale = false
+        break
+      }
+    }
+
+    if (etagStale) {
+      return false
+    }
+  }
+
+  // if-modified-since
+  if (modifiedSince) {
+    var lastModified = resHeaders['last-modified']
+    var modifiedStale = !lastModified || !(parseHttpDate(lastModified) <= parseHttpDate(modifiedSince))
+
+    if (modifiedStale) {
+      return false
+    }
+  }
+
+  return true
+}
+
+/**
+ * Parse an HTTP Date into a number.
+ *
+ * @param {string} date
+ * @private
+ */
+
+function parseHttpDate (date) {
+  var timestamp = date && Date.parse(date)
+
+  // istanbul ignore next: guard against date.js Date.parse patching
+  return typeof timestamp === 'number'
+    ? timestamp
+    : NaN
+}
+
+/**
+ * Parse a HTTP token list.
+ *
+ * @param {string} str
+ * @private
+ */
+
+function parseTokenList (str) {
+  var end = 0
+  var list = []
+  var start = 0
+
+  // gather tokens
+  for (var i = 0, len = str.length; i < len; i++) {
+    switch (str.charCodeAt(i)) {
+      case 0x20: /*   */
+        if (start === end) {
+          start = end = i + 1
+        }
+        break
+      case 0x2c: /* , */
+        list.push(str.substring(start, end))
+        start = end = i + 1
+        break
+      default:
+        end = i + 1
+        break
+    }
+  }
+
+  // final token
+  list.push(str.substring(start, end))
+
+  return list
+}
diff --git a/backend/node_modules/fresh/package.json b/backend/node_modules/fresh/package.json
new file mode 100644
index 0000000..c2fa0f4
--- /dev/null
+++ b/backend/node_modules/fresh/package.json
@@ -0,0 +1,46 @@
+{
+  "name": "fresh",
+  "description": "HTTP response freshness testing",
+  "version": "0.5.2",
+  "author": "TJ Holowaychuk <tj@vision-media.ca> (http://tjholowaychuk.com)",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)"
+  ],
+  "license": "MIT",
+  "keywords": [
+    "fresh",
+    "http",
+    "conditional",
+    "cache"
+  ],
+  "repository": "jshttp/fresh",
+  "devDependencies": {
+    "beautify-benchmark": "0.2.4",
+    "benchmark": "2.1.4",
+    "eslint": "3.19.0",
+    "eslint-config-standard": "10.2.1",
+    "eslint-plugin-import": "2.7.0",
+    "eslint-plugin-markdown": "1.0.0-beta.6",
+    "eslint-plugin-node": "5.1.1",
+    "eslint-plugin-promise": "3.5.0",
+    "eslint-plugin-standard": "3.0.1",
+    "istanbul": "0.4.5",
+    "mocha": "1.21.5"
+  },
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "bench": "node benchmark/index.js",
+    "lint": "eslint --plugin markdown --ext js,md .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/",
+    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/"
+  }
+}
diff --git a/backend/node_modules/function-bind/.eslintrc b/backend/node_modules/function-bind/.eslintrc
new file mode 100644
index 0000000..71a054f
--- /dev/null
+++ b/backend/node_modules/function-bind/.eslintrc
@@ -0,0 +1,21 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"func-name-matching": 0,
+		"indent": [2, 4],
+		"no-new-func": [1],
+	},
+
+	"overrides": [
+		{
+			"files": "test/**",
+			"rules": {
+				"max-lines-per-function": 0,
+				"strict": [0]
+			},
+		},
+	],
+}
diff --git a/backend/node_modules/function-bind/.github/FUNDING.yml b/backend/node_modules/function-bind/.github/FUNDING.yml
new file mode 100644
index 0000000..7448219
--- /dev/null
+++ b/backend/node_modules/function-bind/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/function-bind
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/function-bind/.github/SECURITY.md b/backend/node_modules/function-bind/.github/SECURITY.md
new file mode 100644
index 0000000..82e4285
--- /dev/null
+++ b/backend/node_modules/function-bind/.github/SECURITY.md
@@ -0,0 +1,3 @@
+# Security
+
+Please email [@ljharb](https://github.com/ljharb) or see https://tidelift.com/security if you have a potential security vulnerability to report.
diff --git a/backend/node_modules/function-bind/.nycrc b/backend/node_modules/function-bind/.nycrc
new file mode 100644
index 0000000..1826526
--- /dev/null
+++ b/backend/node_modules/function-bind/.nycrc
@@ -0,0 +1,13 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"lines": 86,
+	"statements": 85.93,
+	"functions": 82.43,
+	"branches": 76.06,
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/function-bind/CHANGELOG.md b/backend/node_modules/function-bind/CHANGELOG.md
new file mode 100644
index 0000000..f9e6cc0
--- /dev/null
+++ b/backend/node_modules/function-bind/CHANGELOG.md
@@ -0,0 +1,136 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.1.2](https://github.com/ljharb/function-bind/compare/v1.1.1...v1.1.2) - 2023-10-12
+
+### Merged
+
+- Point to the correct file [`#16`](https://github.com/ljharb/function-bind/pull/16)
+
+### Commits
+
+- [Tests] migrate tests to Github Actions [`4f8b57c`](https://github.com/ljharb/function-bind/commit/4f8b57c02f2011fe9ae353d5e74e8745f0988af8)
+- [Tests] remove `jscs` [`90eb2ed`](https://github.com/ljharb/function-bind/commit/90eb2edbeefd5b76cd6c3a482ea3454db169b31f)
+- [meta] update `.gitignore` [`53fcdc3`](https://github.com/ljharb/function-bind/commit/53fcdc371cd66634d6e9b71c836a50f437e89fed)
+- [Tests] up to `node` `v11.10`, `v10.15`, `v9.11`, `v8.15`, `v6.16`, `v4.9`; use `nvm install-latest-npm`; run audit script in tests [`1fe8f6e`](https://github.com/ljharb/function-bind/commit/1fe8f6e9aed0dfa8d8b3cdbd00c7f5ea0cd2b36e)
+- [meta] add `auto-changelog` [`1921fcb`](https://github.com/ljharb/function-bind/commit/1921fcb5b416b63ffc4acad051b6aad5722f777d)
+- [Robustness] remove runtime dependency on all builtins except `.apply` [`f743e61`](https://github.com/ljharb/function-bind/commit/f743e61aa6bb2360358c04d4884c9db853d118b7)
+- Docs: enable badges; update wording [`503cb12`](https://github.com/ljharb/function-bind/commit/503cb12d998b5f91822776c73332c7adcd6355dd)
+- [readme] update badges [`290c5db`](https://github.com/ljharb/function-bind/commit/290c5dbbbda7264efaeb886552a374b869a4bb48)
+- [Tests] switch to nyc for coverage [`ea360ba`](https://github.com/ljharb/function-bind/commit/ea360ba907fc2601ed18d01a3827fa2d3533cdf8)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `tape` [`cae5e9e`](https://github.com/ljharb/function-bind/commit/cae5e9e07a5578dc6df26c03ee22851ce05b943c)
+- [meta] add `funding` field; create FUNDING.yml [`c9f4274`](https://github.com/ljharb/function-bind/commit/c9f4274aa80ea3aae9657a3938fdba41a3b04ca6)
+- [Tests] fix eslint errors from #15 [`f69aaa2`](https://github.com/ljharb/function-bind/commit/f69aaa2beb2fdab4415bfb885760a699d0b9c964)
+- [actions] fix permissions [`99a0cd9`](https://github.com/ljharb/function-bind/commit/99a0cd9f3b5bac223a0d572f081834cd73314be7)
+- [meta] use `npmignore` to autogenerate an npmignore file [`f03b524`](https://github.com/ljharb/function-bind/commit/f03b524ca91f75a109a5d062f029122c86ecd1ae)
+- [Dev Deps] update `@ljharb/eslint‑config`, `eslint`, `tape` [`7af9300`](https://github.com/ljharb/function-bind/commit/7af930023ae2ce7645489532821e4fbbcd7a2280)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `covert`, `tape` [`64a9127`](https://github.com/ljharb/function-bind/commit/64a9127ab0bd331b93d6572eaf6e9971967fc08c)
+- [Tests] use `aud` instead of `npm audit` [`e75069c`](https://github.com/ljharb/function-bind/commit/e75069c50010a8fcce2a9ce2324934c35fdb4386)
+- [Dev Deps] update `@ljharb/eslint-config`, `aud`, `tape` [`d03555c`](https://github.com/ljharb/function-bind/commit/d03555ca59dea3b71ce710045e4303b9e2619e28)
+- [meta] add `safe-publish-latest` [`9c8f809`](https://github.com/ljharb/function-bind/commit/9c8f8092aed027d7e80c94f517aa892385b64f09)
+- [Dev Deps] update `@ljharb/eslint-config`, `tape` [`baf6893`](https://github.com/ljharb/function-bind/commit/baf6893e27f5b59abe88bc1995e6f6ed1e527397)
+- [meta] create SECURITY.md [`4db1779`](https://github.com/ljharb/function-bind/commit/4db17799f1f28ae294cb95e0081ca2b591c3911b)
+- [Tests] add `npm run audit` [`c8b38ec`](https://github.com/ljharb/function-bind/commit/c8b38ec40ed3f85dabdee40ed4148f1748375bc2)
+- Revert "Point to the correct file" [`05cdf0f`](https://github.com/ljharb/function-bind/commit/05cdf0fa205c6a3c5ba40bbedd1dfa9874f915c9)
+
+## [v1.1.1](https://github.com/ljharb/function-bind/compare/v1.1.0...v1.1.1) - 2017-08-28
+
+### Commits
+
+- [Tests] up to `node` `v8`; newer npm breaks on older node; fix scripts [`817f7d2`](https://github.com/ljharb/function-bind/commit/817f7d28470fdbff8ef608d4d565dd4d1430bc5e)
+- [Dev Deps] update `eslint`, `jscs`, `tape`, `@ljharb/eslint-config` [`854288b`](https://github.com/ljharb/function-bind/commit/854288b1b6f5c555f89aceb9eff1152510262084)
+- [Dev Deps] update `tape`, `jscs`, `eslint`, `@ljharb/eslint-config` [`83e639f`](https://github.com/ljharb/function-bind/commit/83e639ff74e6cd6921285bccec22c1bcf72311bd)
+- Only apps should have lockfiles [`5ed97f5`](https://github.com/ljharb/function-bind/commit/5ed97f51235c17774e0832e122abda0f3229c908)
+- Use a SPDX-compliant “license” field. [`5feefea`](https://github.com/ljharb/function-bind/commit/5feefea0dc0193993e83e5df01ded424403a5381)
+
+## [v1.1.0](https://github.com/ljharb/function-bind/compare/v1.0.2...v1.1.0) - 2016-02-14
+
+### Commits
+
+- Update `eslint`, `tape`; use my personal shared `eslint` config [`9c9062a`](https://github.com/ljharb/function-bind/commit/9c9062abbe9dd70b59ea2c3a3c3a81f29b457097)
+- Add `npm run eslint` [`dd96c56`](https://github.com/ljharb/function-bind/commit/dd96c56720034a3c1ffee10b8a59a6f7c53e24ad)
+- [New] return the native `bind` when available. [`82186e0`](https://github.com/ljharb/function-bind/commit/82186e03d73e580f95ff167e03f3582bed90ed72)
+- [Dev Deps] update `tape`, `jscs`, `eslint`, `@ljharb/eslint-config` [`a3dd767`](https://github.com/ljharb/function-bind/commit/a3dd76720c795cb7f4586b0544efabf8aa107b8b)
+- Update `eslint` [`3dae2f7`](https://github.com/ljharb/function-bind/commit/3dae2f7423de30a2d20313ddb1edc19660142fe9)
+- Update `tape`, `covert`, `jscs` [`a181eee`](https://github.com/ljharb/function-bind/commit/a181eee0cfa24eb229c6e843a971f36e060a2f6a)
+- [Tests] up to `node` `v5.6`, `v4.3` [`964929a`](https://github.com/ljharb/function-bind/commit/964929a6a4ddb36fb128de2bcc20af5e4f22e1ed)
+- Test up to `io.js` `v2.1` [`2be7310`](https://github.com/ljharb/function-bind/commit/2be7310f2f74886a7124ca925be411117d41d5ea)
+- Update `tape`, `jscs`, `eslint`, `@ljharb/eslint-config` [`45f3d68`](https://github.com/ljharb/function-bind/commit/45f3d6865c6ca93726abcef54febe009087af101)
+- [Dev Deps] update `tape`, `jscs` [`6e1340d`](https://github.com/ljharb/function-bind/commit/6e1340d94642deaecad3e717825db641af4f8b1f)
+- [Tests] up to `io.js` `v3.3`, `node` `v4.1` [`d9bad2b`](https://github.com/ljharb/function-bind/commit/d9bad2b778b1b3a6dd2876087b88b3acf319f8cc)
+- Update `eslint` [`935590c`](https://github.com/ljharb/function-bind/commit/935590caa024ab356102e4858e8fc315b2ccc446)
+- [Dev Deps] update `jscs`, `eslint`, `@ljharb/eslint-config` [`8c9a1ef`](https://github.com/ljharb/function-bind/commit/8c9a1efd848e5167887aa8501857a0940a480c57)
+- Test on `io.js` `v2.2` [`9a3a38c`](https://github.com/ljharb/function-bind/commit/9a3a38c92013aed6e108666e7bd40969b84ac86e)
+- Run `travis-ci` tests on `iojs` and `node` v0.12; speed up builds; allow 0.8 failures. [`69afc26`](https://github.com/ljharb/function-bind/commit/69afc2617405b147dd2a8d8ae73ca9e9283f18b4)
+- [Dev Deps] Update `tape`, `eslint` [`36c1be0`](https://github.com/ljharb/function-bind/commit/36c1be0ab12b45fe5df6b0fdb01a5d5137fd0115)
+- Update `tape`, `jscs` [`98d8303`](https://github.com/ljharb/function-bind/commit/98d8303cd5ca1c6b8f985469f86b0d44d7d45f6e)
+- Update `jscs` [`9633a4e`](https://github.com/ljharb/function-bind/commit/9633a4e9fbf82051c240855166e468ba8ba0846f)
+- Update `tape`, `jscs` [`c80ef0f`](https://github.com/ljharb/function-bind/commit/c80ef0f46efc9791e76fa50de4414092ac147831)
+- Test up to `io.js` `v3.0` [`7e2c853`](https://github.com/ljharb/function-bind/commit/7e2c8537d52ab9cf5a655755561d8917684c0df4)
+- Test on `io.js` `v2.4` [`5a199a2`](https://github.com/ljharb/function-bind/commit/5a199a27ba46795ba5eaf0845d07d4b8232895c9)
+- Test on `io.js` `v2.3` [`a511b88`](https://github.com/ljharb/function-bind/commit/a511b8896de0bddf3b56862daa416c701f4d0453)
+- Fixing a typo from 822b4e1938db02dc9584aa434fd3a45cb20caf43 [`732d6b6`](https://github.com/ljharb/function-bind/commit/732d6b63a9b33b45230e630dbcac7a10855d3266)
+- Update `jscs` [`da52a48`](https://github.com/ljharb/function-bind/commit/da52a4886c06d6490f46ae30b15e4163ba08905d)
+- Lock covert to v1.0.0. [`d6150fd`](https://github.com/ljharb/function-bind/commit/d6150fda1e6f486718ebdeff823333d9e48e7430)
+
+## [v1.0.2](https://github.com/ljharb/function-bind/compare/v1.0.1...v1.0.2) - 2014-10-04
+
+## [v1.0.1](https://github.com/ljharb/function-bind/compare/v1.0.0...v1.0.1) - 2014-10-03
+
+### Merged
+
+- make CI build faster [`#3`](https://github.com/ljharb/function-bind/pull/3)
+
+### Commits
+
+- Using my standard jscs.json [`d8ee94c`](https://github.com/ljharb/function-bind/commit/d8ee94c993eff0a84cf5744fe6a29627f5cffa1a)
+- Adding `npm run lint` [`7571ab7`](https://github.com/ljharb/function-bind/commit/7571ab7dfdbd99b25a1dbb2d232622bd6f4f9c10)
+- Using consistent indentation [`e91a1b1`](https://github.com/ljharb/function-bind/commit/e91a1b13a61e99ec1e530e299b55508f74218a95)
+- Updating jscs [`7e17892`](https://github.com/ljharb/function-bind/commit/7e1789284bc629bc9c1547a61c9b227bbd8c7a65)
+- Using consistent quotes [`c50b57f`](https://github.com/ljharb/function-bind/commit/c50b57fcd1c5ec38320979c837006069ebe02b77)
+- Adding keywords [`cb94631`](https://github.com/ljharb/function-bind/commit/cb946314eed35f21186a25fb42fc118772f9ee00)
+- Directly export a function expression instead of using a declaration, and relying on hoisting. [`5a33c5f`](https://github.com/ljharb/function-bind/commit/5a33c5f45642de180e0d207110bf7d1843ceb87c)
+- Naming npm URL and badge in README; use SVG [`2aef8fc`](https://github.com/ljharb/function-bind/commit/2aef8fcb79d54e63a58ae557c4e60949e05d5e16)
+- Naming deps URLs in README [`04228d7`](https://github.com/ljharb/function-bind/commit/04228d766670ee45ca24e98345c1f6a7621065b5)
+- Naming travis-ci URLs in README; using SVG [`62c810c`](https://github.com/ljharb/function-bind/commit/62c810c2f54ced956cd4d4ab7b793055addfe36e)
+- Make sure functions are invoked correctly (also passing coverage tests) [`2b289b4`](https://github.com/ljharb/function-bind/commit/2b289b4dfbf037ffcfa4dc95eb540f6165e9e43a)
+- Removing the strict mode pragmas; they make tests fail. [`1aa701d`](https://github.com/ljharb/function-bind/commit/1aa701d199ddc3782476e8f7eef82679be97b845)
+- Adding myself as a contributor [`85fd57b`](https://github.com/ljharb/function-bind/commit/85fd57b0860e5a7af42de9a287f3f265fc6d72fc)
+- Adding strict mode pragmas [`915b08e`](https://github.com/ljharb/function-bind/commit/915b08e084c86a722eafe7245e21db74aa21ca4c)
+- Adding devDeps URLs to README [`4ccc731`](https://github.com/ljharb/function-bind/commit/4ccc73112c1769859e4ca3076caf4086b3cba2cd)
+- Fixing the description. [`a7a472c`](https://github.com/ljharb/function-bind/commit/a7a472cf649af515c635cf560fc478fbe48999c8)
+- Using a function expression instead of a function declaration. [`b5d3e4e`](https://github.com/ljharb/function-bind/commit/b5d3e4ea6aaffc63888953eeb1fbc7ff45f1fa14)
+- Updating tape [`f086be6`](https://github.com/ljharb/function-bind/commit/f086be6029fb56dde61a258c1340600fa174d1e0)
+- Updating jscs [`5f9bdb3`](https://github.com/ljharb/function-bind/commit/5f9bdb375ab13ba48f30852aab94029520c54d71)
+- Updating jscs [`9b409ba`](https://github.com/ljharb/function-bind/commit/9b409ba6118e23395a4e5d83ef39152aab9d3bfc)
+- Run coverage as part of tests. [`8e1b6d4`](https://github.com/ljharb/function-bind/commit/8e1b6d459f047d1bd4fee814e01247c984c80bd0)
+- Run linter as part of tests [`c1ca83f`](https://github.com/ljharb/function-bind/commit/c1ca83f832df94587d09e621beba682fabfaa987)
+- Updating covert [`701e837`](https://github.com/ljharb/function-bind/commit/701e83774b57b4d3ef631e1948143f43a72f4bb9)
+
+## [v1.0.0](https://github.com/ljharb/function-bind/compare/v0.2.0...v1.0.0) - 2014-08-09
+
+### Commits
+
+- Make sure old and unstable nodes don't fail Travis [`27adca3`](https://github.com/ljharb/function-bind/commit/27adca34a4ab6ad67b6dfde43942a1b103ce4d75)
+- Fixing an issue when the bound function is called as a constructor in ES3. [`e20122d`](https://github.com/ljharb/function-bind/commit/e20122d267d92ce553859b280cbbea5d27c07731)
+- Adding `npm run coverage` [`a2e29c4`](https://github.com/ljharb/function-bind/commit/a2e29c4ecaef9e2f6cd1603e868c139073375502)
+- Updating tape [`b741168`](https://github.com/ljharb/function-bind/commit/b741168b12b235b1717ff696087645526b69213c)
+- Upgrading tape [`63631a0`](https://github.com/ljharb/function-bind/commit/63631a04c7fbe97cc2fa61829cc27246d6986f74)
+- Updating tape [`363cb46`](https://github.com/ljharb/function-bind/commit/363cb46dafb23cb3e347729a22f9448051d78464)
+
+## v0.2.0 - 2014-03-23
+
+### Commits
+
+- Updating test coverage to match es5-shim. [`aa94d44`](https://github.com/ljharb/function-bind/commit/aa94d44b8f9d7f69f10e060db7709aa7a694e5d4)
+- initial [`942ee07`](https://github.com/ljharb/function-bind/commit/942ee07e94e542d91798137bc4b80b926137e066)
+- Setting the bound function's length properly. [`079f46a`](https://github.com/ljharb/function-bind/commit/079f46a2d3515b7c0b308c2c13fceb641f97ca25)
+- Ensuring that some older browsers will throw when given a regex. [`36ac55b`](https://github.com/ljharb/function-bind/commit/36ac55b87f460d4330253c92870aa26fbfe8227f)
+- Removing npm scripts that don't have dependencies [`9d2be60`](https://github.com/ljharb/function-bind/commit/9d2be600002cb8bc8606f8f3585ad3e05868c750)
+- Updating tape [`297a4ac`](https://github.com/ljharb/function-bind/commit/297a4acc5464db381940aafb194d1c88f4e678f3)
+- Skipping length tests for now. [`d9891ea`](https://github.com/ljharb/function-bind/commit/d9891ea4d2aaffa69f408339cdd61ff740f70565)
+- don't take my tea [`dccd930`](https://github.com/ljharb/function-bind/commit/dccd930bfd60ea10cb178d28c97550c3bc8c1e07)
diff --git a/backend/node_modules/function-bind/LICENSE b/backend/node_modules/function-bind/LICENSE
new file mode 100644
index 0000000..62d6d23
--- /dev/null
+++ b/backend/node_modules/function-bind/LICENSE
@@ -0,0 +1,20 @@
+Copyright (c) 2013 Raynos.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
diff --git a/backend/node_modules/function-bind/README.md b/backend/node_modules/function-bind/README.md
new file mode 100644
index 0000000..814c20b
--- /dev/null
+++ b/backend/node_modules/function-bind/README.md
@@ -0,0 +1,46 @@
+# function-bind <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+<!--[![coverage][codecov-image]][codecov-url]-->
+[![dependency status][deps-svg]][deps-url]
+[![dev dependency status][dev-deps-svg]][dev-deps-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+Implementation of function.prototype.bind
+
+Old versions of phantomjs, Internet Explorer < 9, and node < 0.6 don't support `Function.prototype.bind`.
+
+## Example
+
+```js
+Function.prototype.bind = require("function-bind")
+```
+
+## Installation
+
+`npm install function-bind`
+
+## Contributors
+
+ - Raynos
+
+## MIT Licenced
+
+[package-url]: https://npmjs.org/package/function-bind
+[npm-version-svg]: https://versionbadg.es/Raynos/function-bind.svg
+[deps-svg]: https://david-dm.org/Raynos/function-bind.svg
+[deps-url]: https://david-dm.org/Raynos/function-bind
+[dev-deps-svg]: https://david-dm.org/Raynos/function-bind/dev-status.svg
+[dev-deps-url]: https://david-dm.org/Raynos/function-bind#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/function-bind.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/function-bind.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/function-bind.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=function-bind
+[codecov-image]: https://codecov.io/gh/Raynos/function-bind/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/Raynos/function-bind/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/Raynos/function-bind
+[actions-url]: https://github.com/Raynos/function-bind/actions
diff --git a/backend/node_modules/function-bind/implementation.js b/backend/node_modules/function-bind/implementation.js
new file mode 100644
index 0000000..fd4384c
--- /dev/null
+++ b/backend/node_modules/function-bind/implementation.js
@@ -0,0 +1,84 @@
+'use strict';
+
+/* eslint no-invalid-this: 1 */
+
+var ERROR_MESSAGE = 'Function.prototype.bind called on incompatible ';
+var toStr = Object.prototype.toString;
+var max = Math.max;
+var funcType = '[object Function]';
+
+var concatty = function concatty(a, b) {
+    var arr = [];
+
+    for (var i = 0; i < a.length; i += 1) {
+        arr[i] = a[i];
+    }
+    for (var j = 0; j < b.length; j += 1) {
+        arr[j + a.length] = b[j];
+    }
+
+    return arr;
+};
+
+var slicy = function slicy(arrLike, offset) {
+    var arr = [];
+    for (var i = offset || 0, j = 0; i < arrLike.length; i += 1, j += 1) {
+        arr[j] = arrLike[i];
+    }
+    return arr;
+};
+
+var joiny = function (arr, joiner) {
+    var str = '';
+    for (var i = 0; i < arr.length; i += 1) {
+        str += arr[i];
+        if (i + 1 < arr.length) {
+            str += joiner;
+        }
+    }
+    return str;
+};
+
+module.exports = function bind(that) {
+    var target = this;
+    if (typeof target !== 'function' || toStr.apply(target) !== funcType) {
+        throw new TypeError(ERROR_MESSAGE + target);
+    }
+    var args = slicy(arguments, 1);
+
+    var bound;
+    var binder = function () {
+        if (this instanceof bound) {
+            var result = target.apply(
+                this,
+                concatty(args, arguments)
+            );
+            if (Object(result) === result) {
+                return result;
+            }
+            return this;
+        }
+        return target.apply(
+            that,
+            concatty(args, arguments)
+        );
+
+    };
+
+    var boundLength = max(0, target.length - args.length);
+    var boundArgs = [];
+    for (var i = 0; i < boundLength; i++) {
+        boundArgs[i] = '$' + i;
+    }
+
+    bound = Function('binder', 'return function (' + joiny(boundArgs, ',') + '){ return binder.apply(this,arguments); }')(binder);
+
+    if (target.prototype) {
+        var Empty = function Empty() {};
+        Empty.prototype = target.prototype;
+        bound.prototype = new Empty();
+        Empty.prototype = null;
+    }
+
+    return bound;
+};
diff --git a/backend/node_modules/function-bind/index.js b/backend/node_modules/function-bind/index.js
new file mode 100644
index 0000000..3bb6b96
--- /dev/null
+++ b/backend/node_modules/function-bind/index.js
@@ -0,0 +1,5 @@
+'use strict';
+
+var implementation = require('./implementation');
+
+module.exports = Function.prototype.bind || implementation;
diff --git a/backend/node_modules/function-bind/package.json b/backend/node_modules/function-bind/package.json
new file mode 100644
index 0000000..6185963
--- /dev/null
+++ b/backend/node_modules/function-bind/package.json
@@ -0,0 +1,87 @@
+{
+  "name": "function-bind",
+  "version": "1.1.2",
+  "description": "Implementation of Function.prototype.bind",
+  "keywords": [
+    "function",
+    "bind",
+    "shim",
+    "es5"
+  ],
+  "author": "Raynos <raynos2@gmail.com>",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/Raynos/function-bind.git"
+  },
+  "funding": {
+    "url": "https://github.com/sponsors/ljharb"
+  },
+  "main": "index",
+  "homepage": "https://github.com/Raynos/function-bind",
+  "contributors": [
+    {
+      "name": "Raynos"
+    },
+    {
+      "name": "Jordan Harband",
+      "url": "https://github.com/ljharb"
+    }
+  ],
+  "bugs": {
+    "url": "https://github.com/Raynos/function-bind/issues",
+    "email": "raynos2@gmail.com"
+  },
+  "devDependencies": {
+    "@ljharb/eslint-config": "^21.1.0",
+    "aud": "^2.0.3",
+    "auto-changelog": "^2.4.0",
+    "eslint": "=8.8.0",
+    "in-publish": "^2.0.1",
+    "npmignore": "^0.3.0",
+    "nyc": "^10.3.2",
+    "safe-publish-latest": "^2.0.0",
+    "tape": "^5.7.1"
+  },
+  "license": "MIT",
+  "scripts": {
+    "prepublishOnly": "safe-publish-latest",
+    "prepublish": "not-in-publish || npm run prepublishOnly",
+    "prepack": "npmignore --auto --commentLines=autogenerated",
+    "pretest": "npm run lint",
+    "test": "npm run tests-only",
+    "posttest": "aud --production",
+    "tests-only": "nyc tape 'test/**/*.js'",
+    "lint": "eslint --ext=js,mjs .",
+    "version": "auto-changelog && git add CHANGELOG.md",
+    "postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+  },
+  "testling": {
+    "files": "test/index.js",
+    "browsers": [
+      "ie/8..latest",
+      "firefox/16..latest",
+      "firefox/nightly",
+      "chrome/22..latest",
+      "chrome/canary",
+      "opera/12..latest",
+      "opera/next",
+      "safari/5.1..latest",
+      "ipad/6.0..latest",
+      "iphone/6.0..latest",
+      "android-browser/4.2..latest"
+    ]
+  },
+  "auto-changelog": {
+    "output": "CHANGELOG.md",
+    "template": "keepachangelog",
+    "unreleased": false,
+    "commitLimit": false,
+    "backfillLimit": false,
+    "hideCredit": true
+  },
+  "publishConfig": {
+    "ignore": [
+      ".github/workflows"
+    ]
+  }
+}
diff --git a/backend/node_modules/function-bind/test/.eslintrc b/backend/node_modules/function-bind/test/.eslintrc
new file mode 100644
index 0000000..8a56d5b
--- /dev/null
+++ b/backend/node_modules/function-bind/test/.eslintrc
@@ -0,0 +1,9 @@
+{
+	"rules": {
+		"array-bracket-newline": 0,
+		"array-element-newline": 0,
+		"max-statements-per-line": [2, { "max": 2 }],
+		"no-invalid-this": 0,
+		"no-magic-numbers": 0,
+	}
+}
diff --git a/backend/node_modules/function-bind/test/index.js b/backend/node_modules/function-bind/test/index.js
new file mode 100644
index 0000000..2edecce
--- /dev/null
+++ b/backend/node_modules/function-bind/test/index.js
@@ -0,0 +1,252 @@
+// jscs:disable requireUseStrict
+
+var test = require('tape');
+
+var functionBind = require('../implementation');
+var getCurrentContext = function () { return this; };
+
+test('functionBind is a function', function (t) {
+    t.equal(typeof functionBind, 'function');
+    t.end();
+});
+
+test('non-functions', function (t) {
+    var nonFunctions = [true, false, [], {}, 42, 'foo', NaN, /a/g];
+    t.plan(nonFunctions.length);
+    for (var i = 0; i < nonFunctions.length; ++i) {
+        try { functionBind.call(nonFunctions[i]); } catch (ex) {
+            t.ok(ex instanceof TypeError, 'throws when given ' + String(nonFunctions[i]));
+        }
+    }
+    t.end();
+});
+
+test('without a context', function (t) {
+    t.test('binds properly', function (st) {
+        var args, context;
+        var namespace = {
+            func: functionBind.call(function () {
+                args = Array.prototype.slice.call(arguments);
+                context = this;
+            })
+        };
+        namespace.func(1, 2, 3);
+        st.deepEqual(args, [1, 2, 3]);
+        st.equal(context, getCurrentContext.call());
+        st.end();
+    });
+
+    t.test('binds properly, and still supplies bound arguments', function (st) {
+        var args, context;
+        var namespace = {
+            func: functionBind.call(function () {
+                args = Array.prototype.slice.call(arguments);
+                context = this;
+            }, undefined, 1, 2, 3)
+        };
+        namespace.func(4, 5, 6);
+        st.deepEqual(args, [1, 2, 3, 4, 5, 6]);
+        st.equal(context, getCurrentContext.call());
+        st.end();
+    });
+
+    t.test('returns properly', function (st) {
+        var args;
+        var namespace = {
+            func: functionBind.call(function () {
+                args = Array.prototype.slice.call(arguments);
+                return this;
+            }, null)
+        };
+        var context = namespace.func(1, 2, 3);
+        st.equal(context, getCurrentContext.call(), 'returned context is namespaced context');
+        st.deepEqual(args, [1, 2, 3], 'passed arguments are correct');
+        st.end();
+    });
+
+    t.test('returns properly with bound arguments', function (st) {
+        var args;
+        var namespace = {
+            func: functionBind.call(function () {
+                args = Array.prototype.slice.call(arguments);
+                return this;
+            }, null, 1, 2, 3)
+        };
+        var context = namespace.func(4, 5, 6);
+        st.equal(context, getCurrentContext.call(), 'returned context is namespaced context');
+        st.deepEqual(args, [1, 2, 3, 4, 5, 6], 'passed arguments are correct');
+        st.end();
+    });
+
+    t.test('called as a constructor', function (st) {
+        var thunkify = function (value) {
+            return function () { return value; };
+        };
+        st.test('returns object value', function (sst) {
+            var expectedReturnValue = [1, 2, 3];
+            var Constructor = functionBind.call(thunkify(expectedReturnValue), null);
+            var result = new Constructor();
+            sst.equal(result, expectedReturnValue);
+            sst.end();
+        });
+
+        st.test('does not return primitive value', function (sst) {
+            var Constructor = functionBind.call(thunkify(42), null);
+            var result = new Constructor();
+            sst.notEqual(result, 42);
+            sst.end();
+        });
+
+        st.test('object from bound constructor is instance of original and bound constructor', function (sst) {
+            var A = function (x) {
+                this.name = x || 'A';
+            };
+            var B = functionBind.call(A, null, 'B');
+
+            var result = new B();
+            sst.ok(result instanceof B, 'result is instance of bound constructor');
+            sst.ok(result instanceof A, 'result is instance of original constructor');
+            sst.end();
+        });
+
+        st.end();
+    });
+
+    t.end();
+});
+
+test('with a context', function (t) {
+    t.test('with no bound arguments', function (st) {
+        var args, context;
+        var boundContext = {};
+        var namespace = {
+            func: functionBind.call(function () {
+                args = Array.prototype.slice.call(arguments);
+                context = this;
+            }, boundContext)
+        };
+        namespace.func(1, 2, 3);
+        st.equal(context, boundContext, 'binds a context properly');
+        st.deepEqual(args, [1, 2, 3], 'supplies passed arguments');
+        st.end();
+    });
+
+    t.test('with bound arguments', function (st) {
+        var args, context;
+        var boundContext = {};
+        var namespace = {
+            func: functionBind.call(function () {
+                args = Array.prototype.slice.call(arguments);
+                context = this;
+            }, boundContext, 1, 2, 3)
+        };
+        namespace.func(4, 5, 6);
+        st.equal(context, boundContext, 'binds a context properly');
+        st.deepEqual(args, [1, 2, 3, 4, 5, 6], 'supplies bound and passed arguments');
+        st.end();
+    });
+
+    t.test('returns properly', function (st) {
+        var boundContext = {};
+        var args;
+        var namespace = {
+            func: functionBind.call(function () {
+                args = Array.prototype.slice.call(arguments);
+                return this;
+            }, boundContext)
+        };
+        var context = namespace.func(1, 2, 3);
+        st.equal(context, boundContext, 'returned context is bound context');
+        st.notEqual(context, getCurrentContext.call(), 'returned context is not lexical context');
+        st.deepEqual(args, [1, 2, 3], 'passed arguments are correct');
+        st.end();
+    });
+
+    t.test('returns properly with bound arguments', function (st) {
+        var boundContext = {};
+        var args;
+        var namespace = {
+            func: functionBind.call(function () {
+                args = Array.prototype.slice.call(arguments);
+                return this;
+            }, boundContext, 1, 2, 3)
+        };
+        var context = namespace.func(4, 5, 6);
+        st.equal(context, boundContext, 'returned context is bound context');
+        st.notEqual(context, getCurrentContext.call(), 'returned context is not lexical context');
+        st.deepEqual(args, [1, 2, 3, 4, 5, 6], 'passed arguments are correct');
+        st.end();
+    });
+
+    t.test('passes the correct arguments when called as a constructor', function (st) {
+        var expected = { name: 'Correct' };
+        var namespace = {
+            Func: functionBind.call(function (arg) {
+                return arg;
+            }, { name: 'Incorrect' })
+        };
+        var returned = new namespace.Func(expected);
+        st.equal(returned, expected, 'returns the right arg when called as a constructor');
+        st.end();
+    });
+
+    t.test('has the new instance\'s context when called as a constructor', function (st) {
+        var actualContext;
+        var expectedContext = { foo: 'bar' };
+        var namespace = {
+            Func: functionBind.call(function () {
+                actualContext = this;
+            }, expectedContext)
+        };
+        var result = new namespace.Func();
+        st.equal(result instanceof namespace.Func, true);
+        st.notEqual(actualContext, expectedContext);
+        st.end();
+    });
+
+    t.end();
+});
+
+test('bound function length', function (t) {
+    t.test('sets a correct length without thisArg', function (st) {
+        var subject = functionBind.call(function (a, b, c) { return a + b + c; });
+        st.equal(subject.length, 3);
+        st.equal(subject(1, 2, 3), 6);
+        st.end();
+    });
+
+    t.test('sets a correct length with thisArg', function (st) {
+        var subject = functionBind.call(function (a, b, c) { return a + b + c; }, {});
+        st.equal(subject.length, 3);
+        st.equal(subject(1, 2, 3), 6);
+        st.end();
+    });
+
+    t.test('sets a correct length without thisArg and first argument', function (st) {
+        var subject = functionBind.call(function (a, b, c) { return a + b + c; }, undefined, 1);
+        st.equal(subject.length, 2);
+        st.equal(subject(2, 3), 6);
+        st.end();
+    });
+
+    t.test('sets a correct length with thisArg and first argument', function (st) {
+        var subject = functionBind.call(function (a, b, c) { return a + b + c; }, {}, 1);
+        st.equal(subject.length, 2);
+        st.equal(subject(2, 3), 6);
+        st.end();
+    });
+
+    t.test('sets a correct length without thisArg and too many arguments', function (st) {
+        var subject = functionBind.call(function (a, b, c) { return a + b + c; }, undefined, 1, 2, 3, 4);
+        st.equal(subject.length, 0);
+        st.equal(subject(), 6);
+        st.end();
+    });
+
+    t.test('sets a correct length with thisArg and too many arguments', function (st) {
+        var subject = functionBind.call(function (a, b, c) { return a + b + c; }, {}, 1, 2, 3, 4);
+        st.equal(subject.length, 0);
+        st.equal(subject(), 6);
+        st.end();
+    });
+});
diff --git a/backend/node_modules/get-intrinsic/.eslintrc b/backend/node_modules/get-intrinsic/.eslintrc
new file mode 100644
index 0000000..8376636
--- /dev/null
+++ b/backend/node_modules/get-intrinsic/.eslintrc
@@ -0,0 +1,38 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"env": {
+		"es6": true,
+		"es2017": true,
+		"es2020": true,
+		"es2021": true,
+		"es2022": true,
+	},
+
+	"rules": {
+		"array-bracket-newline": 0,
+		"complexity": 0,
+		"eqeqeq": [2, "allow-null"],
+		"func-name-matching": 0,
+		"id-length": 0,
+		"max-lines": 0,
+		"max-lines-per-function": [2, 90],
+		"max-params": [2, 4],
+		"max-statements": 0,
+		"max-statements-per-line": [2, { "max": 2 }],
+		"multiline-comment-style": 0,
+		"no-magic-numbers": 0,
+		"sort-keys": 0,
+	},
+
+	"overrides": [
+		{
+			"files": "test/**",
+			"rules": {
+				"new-cap": 0,
+			},
+		},
+	],
+}
diff --git a/backend/node_modules/get-intrinsic/.github/FUNDING.yml b/backend/node_modules/get-intrinsic/.github/FUNDING.yml
new file mode 100644
index 0000000..8e8da0d
--- /dev/null
+++ b/backend/node_modules/get-intrinsic/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/get-intrinsic
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/get-intrinsic/.nycrc b/backend/node_modules/get-intrinsic/.nycrc
new file mode 100644
index 0000000..bdd626c
--- /dev/null
+++ b/backend/node_modules/get-intrinsic/.nycrc
@@ -0,0 +1,9 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/get-intrinsic/CHANGELOG.md b/backend/node_modules/get-intrinsic/CHANGELOG.md
new file mode 100644
index 0000000..5b4d214
--- /dev/null
+++ b/backend/node_modules/get-intrinsic/CHANGELOG.md
@@ -0,0 +1,178 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.2.7](https://github.com/ljharb/get-intrinsic/compare/v1.2.6...v1.2.7) - 2025-01-02
+
+### Commits
+
+- [Refactor] use `get-proto` directly [`00ab955`](https://github.com/ljharb/get-intrinsic/commit/00ab95546a0980c8ad42a84253daaa8d2adcedf9)
+- [Deps] update `math-intrinsics` [`c716cdd`](https://github.com/ljharb/get-intrinsic/commit/c716cdd6bbe36b438057025561b8bb5a879ac8a0)
+- [Dev Deps] update `call-bound`, `es-abstract` [`dc648a6`](https://github.com/ljharb/get-intrinsic/commit/dc648a67eb359037dff8d8619bfa71d86debccb1)
+
+## [v1.2.6](https://github.com/ljharb/get-intrinsic/compare/v1.2.5...v1.2.6) - 2024-12-11
+
+### Commits
+
+- [Refactor] use `math-intrinsics` [`841be86`](https://github.com/ljharb/get-intrinsic/commit/841be8641a9254c4c75483b30c8871b5d5065926)
+- [Refactor] use `es-object-atoms` [`42057df`](https://github.com/ljharb/get-intrinsic/commit/42057dfa16f66f64787e66482af381cc6f31d2c1)
+- [Deps] update `call-bind-apply-helpers` [`45afa24`](https://github.com/ljharb/get-intrinsic/commit/45afa24a9ee4d6d3c172db1f555b16cb27843ef4)
+- [Dev Deps] update `call-bound` [`9cba9c6`](https://github.com/ljharb/get-intrinsic/commit/9cba9c6e70212bc163b7a5529cb25df46071646f)
+
+## [v1.2.5](https://github.com/ljharb/get-intrinsic/compare/v1.2.4...v1.2.5) - 2024-12-06
+
+### Commits
+
+- [actions] split out node 10-20, and 20+ [`6e2b9dd`](https://github.com/ljharb/get-intrinsic/commit/6e2b9dd23902665681ebe453256ccfe21d7966f0)
+- [Refactor] use `dunder-proto` and `call-bind-apply-helpers` instead of `has-proto` [`c095d17`](https://github.com/ljharb/get-intrinsic/commit/c095d179ad0f4fbfff20c8a3e0cb4fe668018998)
+- [Refactor] use `gopd` [`9841d5b`](https://github.com/ljharb/get-intrinsic/commit/9841d5b35f7ab4fd2d193f0c741a50a077920e90)
+- [Dev Deps] update `@ljharb/eslint-config`, `auto-changelog`, `es-abstract`, `es-value-fixtures`, `gopd`, `mock-property`, `object-inspect`, `tape` [`2d07e01`](https://github.com/ljharb/get-intrinsic/commit/2d07e01310cee2cbaedfead6903df128b1f5d425)
+- [Deps] update `gopd`, `has-proto`, `has-symbols`, `hasown` [`974d8bf`](https://github.com/ljharb/get-intrinsic/commit/974d8bf5baad7939eef35c25cc1dd88c10a30fa6)
+- [Dev Deps] update `call-bind`, `es-abstract`, `tape` [`df9dde1`](https://github.com/ljharb/get-intrinsic/commit/df9dde178186631ab8a3165ede056549918ce4bc)
+- [Refactor] cache `es-define-property` as well [`43ef543`](https://github.com/ljharb/get-intrinsic/commit/43ef543cb02194401420e3a914a4ca9168691926)
+- [Deps] update `has-proto`, `has-symbols`, `hasown` [`ad4949d`](https://github.com/ljharb/get-intrinsic/commit/ad4949d5467316505aad89bf75f9417ed782f7af)
+- [Tests] use `call-bound` directly [`ad5c406`](https://github.com/ljharb/get-intrinsic/commit/ad5c4069774bfe90e520a35eead5fe5ca9d69e80)
+- [Deps] update `has-proto`, `hasown` [`45414ca`](https://github.com/ljharb/get-intrinsic/commit/45414caa312333a2798953682c68f85c550627dd)
+- [Tests] replace `aud` with `npm audit` [`18d3509`](https://github.com/ljharb/get-intrinsic/commit/18d3509f79460e7924da70409ee81e5053087523)
+- [Deps] update `es-define-property` [`aadaa3b`](https://github.com/ljharb/get-intrinsic/commit/aadaa3b2188d77ad9bff394ce5d4249c49eb21f5)
+- [Dev Deps] add missing peer dep [`c296a16`](https://github.com/ljharb/get-intrinsic/commit/c296a16246d0c9a5981944f4cc5cf61fbda0cf6a)
+
+## [v1.2.4](https://github.com/ljharb/get-intrinsic/compare/v1.2.3...v1.2.4) - 2024-02-05
+
+### Commits
+
+- [Refactor] use all 7 &lt;+ ES6 Errors from `es-errors` [`bcac811`](https://github.com/ljharb/get-intrinsic/commit/bcac811abdc1c982e12abf848a410d6aae148d14)
+
+## [v1.2.3](https://github.com/ljharb/get-intrinsic/compare/v1.2.2...v1.2.3) - 2024-02-03
+
+### Commits
+
+- [Refactor] use `es-errors`, so things that only need those do not need `get-intrinsic` [`f11db9c`](https://github.com/ljharb/get-intrinsic/commit/f11db9c4fb97d87bbd53d3c73ac6b3db3613ad3b)
+- [Dev Deps] update `aud`, `es-abstract`, `mock-property`, `npmignore` [`b7ac7d1`](https://github.com/ljharb/get-intrinsic/commit/b7ac7d1616fefb03877b1aed0c8f8d61aad32b6c)
+- [meta] simplify `exports` [`faa0cc6`](https://github.com/ljharb/get-intrinsic/commit/faa0cc618e2830ffb51a8202490b0c215d965cbc)
+- [meta] add missing `engines.node` [`774dd0b`](https://github.com/ljharb/get-intrinsic/commit/774dd0b3e8f741c3f05a6322d124d6087f146af1)
+- [Dev Deps] update `tape` [`5828e8e`](https://github.com/ljharb/get-intrinsic/commit/5828e8e4a04e69312e87a36c0ea39428a7a4c3d8)
+- [Robustness] use null objects for lookups [`eb9a11f`](https://github.com/ljharb/get-intrinsic/commit/eb9a11fa9eb3e13b193fcc05a7fb814341b1a7b7)
+- [meta] add `sideEffects` flag [`89bcc7a`](https://github.com/ljharb/get-intrinsic/commit/89bcc7a42e19bf07b7c21e3094d5ab177109e6d2)
+
+## [v1.2.2](https://github.com/ljharb/get-intrinsic/compare/v1.2.1...v1.2.2) - 2023-10-20
+
+### Commits
+
+- [Dev Deps] update `@ljharb/eslint-config`, `aud`, `call-bind`, `es-abstract`, `mock-property`, `object-inspect`, `tape` [`f51bcf2`](https://github.com/ljharb/get-intrinsic/commit/f51bcf26412d58d17ce17c91c9afd0ad271f0762)
+- [Refactor] use `hasown` instead of `has` [`18d14b7`](https://github.com/ljharb/get-intrinsic/commit/18d14b799bea6b5765e1cec91890830cbcdb0587)
+- [Deps] update `function-bind` [`6e109c8`](https://github.com/ljharb/get-intrinsic/commit/6e109c81e03804cc5e7824fb64353cdc3d8ee2c7)
+
+## [v1.2.1](https://github.com/ljharb/get-intrinsic/compare/v1.2.0...v1.2.1) - 2023-05-13
+
+### Commits
+
+- [Fix] avoid a crash in envs without `__proto__` [`7bad8d0`](https://github.com/ljharb/get-intrinsic/commit/7bad8d061bf8721733b58b73a2565af2b6756b64)
+- [Dev Deps] update `es-abstract` [`c60e6b7`](https://github.com/ljharb/get-intrinsic/commit/c60e6b7b4cf9660c7f27ed970970fd55fac48dc5)
+
+## [v1.2.0](https://github.com/ljharb/get-intrinsic/compare/v1.1.3...v1.2.0) - 2023-01-19
+
+### Commits
+
+- [actions] update checkout action [`ca6b12f`](https://github.com/ljharb/get-intrinsic/commit/ca6b12f31eaacea4ea3b055e744cd61623385ffb)
+- [Dev Deps] update `@ljharb/eslint-config`, `es-abstract`, `object-inspect`, `tape` [`41a3727`](https://github.com/ljharb/get-intrinsic/commit/41a3727d0026fa04273ae216a5f8e12eefd72da8)
+- [Fix] ensure `Error.prototype` is undeniable [`c511e97`](https://github.com/ljharb/get-intrinsic/commit/c511e97ae99c764c4524b540dee7a70757af8da3)
+- [Dev Deps] update `aud`, `es-abstract`, `tape` [`1bef8a8`](https://github.com/ljharb/get-intrinsic/commit/1bef8a8fd439ebb80863199b6189199e0851ac67)
+- [Dev Deps] update `aud`, `es-abstract` [`0d41f16`](https://github.com/ljharb/get-intrinsic/commit/0d41f16bcd500bc28b7bfc98043ebf61ea081c26)
+- [New] add `BigInt64Array` and `BigUint64Array` [`a6cca25`](https://github.com/ljharb/get-intrinsic/commit/a6cca25f29635889b7e9bd669baf9e04be90e48c)
+- [Tests] use `gopd` [`ecf7722`](https://github.com/ljharb/get-intrinsic/commit/ecf7722240d15cfd16edda06acf63359c10fb9bd)
+
+## [v1.1.3](https://github.com/ljharb/get-intrinsic/compare/v1.1.2...v1.1.3) - 2022-09-12
+
+### Commits
+
+- [Dev Deps] update `es-abstract`, `es-value-fixtures`, `tape` [`07ff291`](https://github.com/ljharb/get-intrinsic/commit/07ff291816406ebe5a12d7f16965bde0942dd688)
+- [Fix] properly check for % signs [`50ac176`](https://github.com/ljharb/get-intrinsic/commit/50ac1760fe99c227e64eabde76e9c0e44cd881b5)
+
+## [v1.1.2](https://github.com/ljharb/get-intrinsic/compare/v1.1.1...v1.1.2) - 2022-06-08
+
+### Fixed
+
+- [Fix] properly validate against extra % signs [`#16`](https://github.com/ljharb/get-intrinsic/issues/16)
+
+### Commits
+
+- [actions] reuse common workflows [`0972547`](https://github.com/ljharb/get-intrinsic/commit/0972547efd0abc863fe4c445a6ca7eb4f8c6901d)
+- [meta] use `npmignore` to autogenerate an npmignore file [`5ba0b51`](https://github.com/ljharb/get-intrinsic/commit/5ba0b51d8d8d4f1c31d426d74abc0770fd106bad)
+- [actions] use `node/install` instead of `node/run`; use `codecov` action [`c364492`](https://github.com/ljharb/get-intrinsic/commit/c364492af4af51333e6f81c0bf21fd3d602c3661)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog`, `es-abstract`, `object-inspect`, `tape` [`dc04dad`](https://github.com/ljharb/get-intrinsic/commit/dc04dad86f6e5608775a2640cb0db5927ae29ed9)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `es-abstract`, `object-inspect`, `safe-publish-latest`, `tape` [`1c14059`](https://github.com/ljharb/get-intrinsic/commit/1c1405984e86dd2dc9366c15d8a0294a96a146a5)
+- [Tests] use `mock-property` [`b396ef0`](https://github.com/ljharb/get-intrinsic/commit/b396ef05bb73b1d699811abd64b0d9b97997fdda)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog`, `object-inspect`, `tape` [`c2c758d`](https://github.com/ljharb/get-intrinsic/commit/c2c758d3b90af4fef0a76910d8d3c292ec8d1d3e)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `es-abstract`, `es-value-fixtures`, `object-inspect`, `tape` [`29e3c09`](https://github.com/ljharb/get-intrinsic/commit/29e3c091c2bf3e17099969847e8729d0e46896de)
+- [actions] update codecov uploader [`8cbc141`](https://github.com/ljharb/get-intrinsic/commit/8cbc1418940d7a8941f3a7985cbc4ac095c5e13d)
+- [Dev Deps] update `@ljharb/eslint-config`, `es-abstract`, `es-value-fixtures`, `object-inspect`, `tape` [`10b6f5c`](https://github.com/ljharb/get-intrinsic/commit/10b6f5c02593fb3680c581d696ac124e30652932)
+- [readme] add github actions/codecov badges [`4e25400`](https://github.com/ljharb/get-intrinsic/commit/4e25400d9f51ae9eb059cbe22d9144e70ea214e8)
+- [Tests] use `for-each` instead of `foreach` [`c05b957`](https://github.com/ljharb/get-intrinsic/commit/c05b957ad9a7bc7721af7cc9e9be1edbfe057496)
+- [Dev Deps] update `es-abstract` [`29b05ae`](https://github.com/ljharb/get-intrinsic/commit/29b05aec3e7330e9ad0b8e0f685a9112c20cdd97)
+- [meta] use `prepublishOnly` script for npm 7+ [`95c285d`](https://github.com/ljharb/get-intrinsic/commit/95c285da810516057d3bbfa871176031af38f05d)
+- [Deps] update `has-symbols` [`593cb4f`](https://github.com/ljharb/get-intrinsic/commit/593cb4fb38e7922e40e42c183f45274b636424cd)
+- [readme] fix repo URLs [`1c8305b`](https://github.com/ljharb/get-intrinsic/commit/1c8305b5365827c9b6fc785434aac0e1328ff2f5)
+- [Deps] update `has-symbols` [`c7138b6`](https://github.com/ljharb/get-intrinsic/commit/c7138b6c6d73132d859471fb8c13304e1e7c8b20)
+- [Dev Deps] remove unused `has-bigints` [`bd63aff`](https://github.com/ljharb/get-intrinsic/commit/bd63aff6ad8f3a986c557fcda2914187bdaab359)
+
+## [v1.1.1](https://github.com/ljharb/get-intrinsic/compare/v1.1.0...v1.1.1) - 2021-02-03
+
+### Fixed
+
+- [meta] export `./package.json` [`#9`](https://github.com/ljharb/get-intrinsic/issues/9)
+
+### Commits
+
+- [readme] flesh out the readme; use `evalmd` [`d12f12c`](https://github.com/ljharb/get-intrinsic/commit/d12f12c15345a0a0772cc65a7c64369529abd614)
+- [eslint] set up proper globals config [`5a8c098`](https://github.com/ljharb/get-intrinsic/commit/5a8c0984e3319d1ac0e64b102f8ec18b64e79f36)
+- [Dev Deps] update `eslint` [`7b9a5c0`](https://github.com/ljharb/get-intrinsic/commit/7b9a5c0d31a90ca1a1234181c74988fb046701cd)
+
+## [v1.1.0](https://github.com/ljharb/get-intrinsic/compare/v1.0.2...v1.1.0) - 2021-01-25
+
+### Fixed
+
+- [Refactor] delay `Function` eval until syntax-derived values are requested [`#3`](https://github.com/ljharb/get-intrinsic/issues/3)
+
+### Commits
+
+- [Tests] migrate tests to Github Actions [`2ab762b`](https://github.com/ljharb/get-intrinsic/commit/2ab762b48164aea8af37a40ba105bbc8246ab8c4)
+- [meta] do not publish github action workflow files [`5e7108e`](https://github.com/ljharb/get-intrinsic/commit/5e7108e4768b244d48d9567ba4f8a6cab9c65b8e)
+- [Tests] add some coverage [`01ac7a8`](https://github.com/ljharb/get-intrinsic/commit/01ac7a87ac29738567e8524cd8c9e026b1fa8cb3)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `call-bind`, `es-abstract`, `tape`; add `call-bind` [`911b672`](https://github.com/ljharb/get-intrinsic/commit/911b672fbffae433a96924c6ce013585e425f4b7)
+- [Refactor] rearrange evalled constructors a bit [`7e7e4bf`](https://github.com/ljharb/get-intrinsic/commit/7e7e4bf583f3799c8ac1c6c5e10d2cb553957347)
+- [meta] add Automatic Rebase and Require Allow Edits workflows [`0199968`](https://github.com/ljharb/get-intrinsic/commit/01999687a263ffce0a3cb011dfbcb761754aedbc)
+
+## [v1.0.2](https://github.com/ljharb/get-intrinsic/compare/v1.0.1...v1.0.2) - 2020-12-17
+
+### Commits
+
+- [Fix] Throw for non‑existent intrinsics [`68f873b`](https://github.com/ljharb/get-intrinsic/commit/68f873b013c732a05ad6f5fc54f697e55515461b)
+- [Fix] Throw for non‑existent segments in the intrinsic path [`8325dee`](https://github.com/ljharb/get-intrinsic/commit/8325deee43128f3654d3399aa9591741ebe17b21)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `has-bigints`, `object-inspect` [`0c227a7`](https://github.com/ljharb/get-intrinsic/commit/0c227a7d8b629166f25715fd242553892e458525)
+- [meta] do not lint coverage output [`70d2419`](https://github.com/ljharb/get-intrinsic/commit/70d24199b620043cd9110fc5f426d214ebe21dc9)
+
+## [v1.0.1](https://github.com/ljharb/get-intrinsic/compare/v1.0.0...v1.0.1) - 2020-10-30
+
+### Commits
+
+- [Tests] gather coverage data on every job [`d1d280d`](https://github.com/ljharb/get-intrinsic/commit/d1d280dec714e3f0519cc877dbcb193057d9cac6)
+- [Fix] add missing dependencies [`5031771`](https://github.com/ljharb/get-intrinsic/commit/5031771bb1095b38be88ce7c41d5de88718e432e)
+- [Tests] use `es-value-fixtures` [`af48765`](https://github.com/ljharb/get-intrinsic/commit/af48765a23c5323fb0b6b38dbf00eb5099c7bebc)
+
+## v1.0.0 - 2020-10-29
+
+### Commits
+
+- Implementation [`bbce57c`](https://github.com/ljharb/get-intrinsic/commit/bbce57c6f33d05b2d8d3efa273ceeb3ee01127bb)
+- Tests [`17b4f0d`](https://github.com/ljharb/get-intrinsic/commit/17b4f0d56dea6b4059b56fc30ef3ee4d9500ebc2)
+- Initial commit [`3153294`](https://github.com/ljharb/get-intrinsic/commit/31532948de363b0a27dd9fd4649e7b7028ec4b44)
+- npm init [`fb326c4`](https://github.com/ljharb/get-intrinsic/commit/fb326c4d2817c8419ec31de1295f06bb268a7902)
+- [meta] add Automatic Rebase and Require Allow Edits workflows [`48862fb`](https://github.com/ljharb/get-intrinsic/commit/48862fb2508c8f6a57968e6d08b7c883afc9d550)
+- [meta] add `auto-changelog` [`5f28ad0`](https://github.com/ljharb/get-intrinsic/commit/5f28ad019e060a353d8028f9f2591a9cc93074a1)
+- [meta] add "funding"; create `FUNDING.yml` [`c2bbdde`](https://github.com/ljharb/get-intrinsic/commit/c2bbddeba73a875be61484ee4680b129a6d4e0a1)
+- [Tests] add `npm run lint` [`0a84b98`](https://github.com/ljharb/get-intrinsic/commit/0a84b98b22b7cf7a748666f705b0003a493c35fd)
+- Only apps should have lockfiles [`9586c75`](https://github.com/ljharb/get-intrinsic/commit/9586c75866c1ee678e4d5d4dbbdef6997e511b05)
diff --git a/backend/node_modules/get-intrinsic/LICENSE b/backend/node_modules/get-intrinsic/LICENSE
new file mode 100644
index 0000000..48f05d0
--- /dev/null
+++ b/backend/node_modules/get-intrinsic/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/get-intrinsic/README.md b/backend/node_modules/get-intrinsic/README.md
new file mode 100644
index 0000000..3aa0bba
--- /dev/null
+++ b/backend/node_modules/get-intrinsic/README.md
@@ -0,0 +1,71 @@
+# get-intrinsic <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![dependency status][deps-svg]][deps-url]
+[![dev dependency status][dev-deps-svg]][dev-deps-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+Get and robustly cache all JS language-level intrinsics at first require time.
+
+See the syntax described [in the JS spec](https://tc39.es/ecma262/#sec-well-known-intrinsic-objects) for reference.
+
+## Example
+
+```js
+var GetIntrinsic = require('get-intrinsic');
+var assert = require('assert');
+
+// static methods
+assert.equal(GetIntrinsic('%Math.pow%'), Math.pow);
+assert.equal(Math.pow(2, 3), 8);
+assert.equal(GetIntrinsic('%Math.pow%')(2, 3), 8);
+delete Math.pow;
+assert.equal(GetIntrinsic('%Math.pow%')(2, 3), 8);
+
+// instance methods
+var arr = [1];
+assert.equal(GetIntrinsic('%Array.prototype.push%'), Array.prototype.push);
+assert.deepEqual(arr, [1]);
+
+arr.push(2);
+assert.deepEqual(arr, [1, 2]);
+
+GetIntrinsic('%Array.prototype.push%').call(arr, 3);
+assert.deepEqual(arr, [1, 2, 3]);
+
+delete Array.prototype.push;
+GetIntrinsic('%Array.prototype.push%').call(arr, 4);
+assert.deepEqual(arr, [1, 2, 3, 4]);
+
+// missing features
+delete JSON.parse; // to simulate a real intrinsic that is missing in the environment
+assert.throws(() => GetIntrinsic('%JSON.parse%'));
+assert.equal(undefined, GetIntrinsic('%JSON.parse%', true));
+```
+
+## Tests
+Simply clone the repo, `npm install`, and run `npm test`
+
+## Security
+
+Please email [@ljharb](https://github.com/ljharb) or see https://tidelift.com/security if you have a potential security vulnerability to report.
+
+[package-url]: https://npmjs.org/package/get-intrinsic
+[npm-version-svg]: https://versionbadg.es/ljharb/get-intrinsic.svg
+[deps-svg]: https://david-dm.org/ljharb/get-intrinsic.svg
+[deps-url]: https://david-dm.org/ljharb/get-intrinsic
+[dev-deps-svg]: https://david-dm.org/ljharb/get-intrinsic/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/get-intrinsic#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/get-intrinsic.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/get-intrinsic.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/get-intrinsic.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=get-intrinsic
+[codecov-image]: https://codecov.io/gh/ljharb/get-intrinsic/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/get-intrinsic/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/get-intrinsic
+[actions-url]: https://github.com/ljharb/get-intrinsic/actions
diff --git a/backend/node_modules/get-intrinsic/index.js b/backend/node_modules/get-intrinsic/index.js
new file mode 100644
index 0000000..7f618f5
--- /dev/null
+++ b/backend/node_modules/get-intrinsic/index.js
@@ -0,0 +1,377 @@
+'use strict';
+
+var undefined;
+
+var $Object = require('es-object-atoms');
+
+var $Error = require('es-errors');
+var $EvalError = require('es-errors/eval');
+var $RangeError = require('es-errors/range');
+var $ReferenceError = require('es-errors/ref');
+var $SyntaxError = require('es-errors/syntax');
+var $TypeError = require('es-errors/type');
+var $URIError = require('es-errors/uri');
+
+var abs = require('math-intrinsics/abs');
+var floor = require('math-intrinsics/floor');
+var max = require('math-intrinsics/max');
+var min = require('math-intrinsics/min');
+var pow = require('math-intrinsics/pow');
+var round = require('math-intrinsics/round');
+var sign = require('math-intrinsics/sign');
+
+var $Function = Function;
+
+// eslint-disable-next-line consistent-return
+var getEvalledConstructor = function (expressionSyntax) {
+	try {
+		return $Function('"use strict"; return (' + expressionSyntax + ').constructor;')();
+	} catch (e) {}
+};
+
+var $gOPD = require('gopd');
+var $defineProperty = require('es-define-property');
+
+var throwTypeError = function () {
+	throw new $TypeError();
+};
+var ThrowTypeError = $gOPD
+	? (function () {
+		try {
+			// eslint-disable-next-line no-unused-expressions, no-caller, no-restricted-properties
+			arguments.callee; // IE 8 does not throw here
+			return throwTypeError;
+		} catch (calleeThrows) {
+			try {
+				// IE 8 throws on Object.getOwnPropertyDescriptor(arguments, '')
+				return $gOPD(arguments, 'callee').get;
+			} catch (gOPDthrows) {
+				return throwTypeError;
+			}
+		}
+	}())
+	: throwTypeError;
+
+var hasSymbols = require('has-symbols')();
+
+var getProto = require('get-proto');
+var $ObjectGPO = require('get-proto/Object.getPrototypeOf');
+var $ReflectGPO = require('get-proto/Reflect.getPrototypeOf');
+
+var $apply = require('call-bind-apply-helpers/functionApply');
+var $call = require('call-bind-apply-helpers/functionCall');
+
+var needsEval = {};
+
+var TypedArray = typeof Uint8Array === 'undefined' || !getProto ? undefined : getProto(Uint8Array);
+
+var INTRINSICS = {
+	__proto__: null,
+	'%AggregateError%': typeof AggregateError === 'undefined' ? undefined : AggregateError,
+	'%Array%': Array,
+	'%ArrayBuffer%': typeof ArrayBuffer === 'undefined' ? undefined : ArrayBuffer,
+	'%ArrayIteratorPrototype%': hasSymbols && getProto ? getProto([][Symbol.iterator]()) : undefined,
+	'%AsyncFromSyncIteratorPrototype%': undefined,
+	'%AsyncFunction%': needsEval,
+	'%AsyncGenerator%': needsEval,
+	'%AsyncGeneratorFunction%': needsEval,
+	'%AsyncIteratorPrototype%': needsEval,
+	'%Atomics%': typeof Atomics === 'undefined' ? undefined : Atomics,
+	'%BigInt%': typeof BigInt === 'undefined' ? undefined : BigInt,
+	'%BigInt64Array%': typeof BigInt64Array === 'undefined' ? undefined : BigInt64Array,
+	'%BigUint64Array%': typeof BigUint64Array === 'undefined' ? undefined : BigUint64Array,
+	'%Boolean%': Boolean,
+	'%DataView%': typeof DataView === 'undefined' ? undefined : DataView,
+	'%Date%': Date,
+	'%decodeURI%': decodeURI,
+	'%decodeURIComponent%': decodeURIComponent,
+	'%encodeURI%': encodeURI,
+	'%encodeURIComponent%': encodeURIComponent,
+	'%Error%': $Error,
+	'%eval%': eval, // eslint-disable-line no-eval
+	'%EvalError%': $EvalError,
+	'%Float32Array%': typeof Float32Array === 'undefined' ? undefined : Float32Array,
+	'%Float64Array%': typeof Float64Array === 'undefined' ? undefined : Float64Array,
+	'%FinalizationRegistry%': typeof FinalizationRegistry === 'undefined' ? undefined : FinalizationRegistry,
+	'%Function%': $Function,
+	'%GeneratorFunction%': needsEval,
+	'%Int8Array%': typeof Int8Array === 'undefined' ? undefined : Int8Array,
+	'%Int16Array%': typeof Int16Array === 'undefined' ? undefined : Int16Array,
+	'%Int32Array%': typeof Int32Array === 'undefined' ? undefined : Int32Array,
+	'%isFinite%': isFinite,
+	'%isNaN%': isNaN,
+	'%IteratorPrototype%': hasSymbols && getProto ? getProto(getProto([][Symbol.iterator]())) : undefined,
+	'%JSON%': typeof JSON === 'object' ? JSON : undefined,
+	'%Map%': typeof Map === 'undefined' ? undefined : Map,
+	'%MapIteratorPrototype%': typeof Map === 'undefined' || !hasSymbols || !getProto ? undefined : getProto(new Map()[Symbol.iterator]()),
+	'%Math%': Math,
+	'%Number%': Number,
+	'%Object%': $Object,
+	'%Object.getOwnPropertyDescriptor%': $gOPD,
+	'%parseFloat%': parseFloat,
+	'%parseInt%': parseInt,
+	'%Promise%': typeof Promise === 'undefined' ? undefined : Promise,
+	'%Proxy%': typeof Proxy === 'undefined' ? undefined : Proxy,
+	'%RangeError%': $RangeError,
+	'%ReferenceError%': $ReferenceError,
+	'%Reflect%': typeof Reflect === 'undefined' ? undefined : Reflect,
+	'%RegExp%': RegExp,
+	'%Set%': typeof Set === 'undefined' ? undefined : Set,
+	'%SetIteratorPrototype%': typeof Set === 'undefined' || !hasSymbols || !getProto ? undefined : getProto(new Set()[Symbol.iterator]()),
+	'%SharedArrayBuffer%': typeof SharedArrayBuffer === 'undefined' ? undefined : SharedArrayBuffer,
+	'%String%': String,
+	'%StringIteratorPrototype%': hasSymbols && getProto ? getProto(''[Symbol.iterator]()) : undefined,
+	'%Symbol%': hasSymbols ? Symbol : undefined,
+	'%SyntaxError%': $SyntaxError,
+	'%ThrowTypeError%': ThrowTypeError,
+	'%TypedArray%': TypedArray,
+	'%TypeError%': $TypeError,
+	'%Uint8Array%': typeof Uint8Array === 'undefined' ? undefined : Uint8Array,
+	'%Uint8ClampedArray%': typeof Uint8ClampedArray === 'undefined' ? undefined : Uint8ClampedArray,
+	'%Uint16Array%': typeof Uint16Array === 'undefined' ? undefined : Uint16Array,
+	'%Uint32Array%': typeof Uint32Array === 'undefined' ? undefined : Uint32Array,
+	'%URIError%': $URIError,
+	'%WeakMap%': typeof WeakMap === 'undefined' ? undefined : WeakMap,
+	'%WeakRef%': typeof WeakRef === 'undefined' ? undefined : WeakRef,
+	'%WeakSet%': typeof WeakSet === 'undefined' ? undefined : WeakSet,
+
+	'%Function.prototype.call%': $call,
+	'%Function.prototype.apply%': $apply,
+	'%Object.defineProperty%': $defineProperty,
+	'%Object.getPrototypeOf%': $ObjectGPO,
+	'%Math.abs%': abs,
+	'%Math.floor%': floor,
+	'%Math.max%': max,
+	'%Math.min%': min,
+	'%Math.pow%': pow,
+	'%Math.round%': round,
+	'%Math.sign%': sign,
+	'%Reflect.getPrototypeOf%': $ReflectGPO
+};
+
+if (getProto) {
+	try {
+		null.error; // eslint-disable-line no-unused-expressions
+	} catch (e) {
+		// https://github.com/tc39/proposal-shadowrealm/pull/384#issuecomment-1364264229
+		var errorProto = getProto(getProto(e));
+		INTRINSICS['%Error.prototype%'] = errorProto;
+	}
+}
+
+var doEval = function doEval(name) {
+	var value;
+	if (name === '%AsyncFunction%') {
+		value = getEvalledConstructor('async function () {}');
+	} else if (name === '%GeneratorFunction%') {
+		value = getEvalledConstructor('function* () {}');
+	} else if (name === '%AsyncGeneratorFunction%') {
+		value = getEvalledConstructor('async function* () {}');
+	} else if (name === '%AsyncGenerator%') {
+		var fn = doEval('%AsyncGeneratorFunction%');
+		if (fn) {
+			value = fn.prototype;
+		}
+	} else if (name === '%AsyncIteratorPrototype%') {
+		var gen = doEval('%AsyncGenerator%');
+		if (gen && getProto) {
+			value = getProto(gen.prototype);
+		}
+	}
+
+	INTRINSICS[name] = value;
+
+	return value;
+};
+
+var LEGACY_ALIASES = {
+	__proto__: null,
+	'%ArrayBufferPrototype%': ['ArrayBuffer', 'prototype'],
+	'%ArrayPrototype%': ['Array', 'prototype'],
+	'%ArrayProto_entries%': ['Array', 'prototype', 'entries'],
+	'%ArrayProto_forEach%': ['Array', 'prototype', 'forEach'],
+	'%ArrayProto_keys%': ['Array', 'prototype', 'keys'],
+	'%ArrayProto_values%': ['Array', 'prototype', 'values'],
+	'%AsyncFunctionPrototype%': ['AsyncFunction', 'prototype'],
+	'%AsyncGenerator%': ['AsyncGeneratorFunction', 'prototype'],
+	'%AsyncGeneratorPrototype%': ['AsyncGeneratorFunction', 'prototype', 'prototype'],
+	'%BooleanPrototype%': ['Boolean', 'prototype'],
+	'%DataViewPrototype%': ['DataView', 'prototype'],
+	'%DatePrototype%': ['Date', 'prototype'],
+	'%ErrorPrototype%': ['Error', 'prototype'],
+	'%EvalErrorPrototype%': ['EvalError', 'prototype'],
+	'%Float32ArrayPrototype%': ['Float32Array', 'prototype'],
+	'%Float64ArrayPrototype%': ['Float64Array', 'prototype'],
+	'%FunctionPrototype%': ['Function', 'prototype'],
+	'%Generator%': ['GeneratorFunction', 'prototype'],
+	'%GeneratorPrototype%': ['GeneratorFunction', 'prototype', 'prototype'],
+	'%Int8ArrayPrototype%': ['Int8Array', 'prototype'],
+	'%Int16ArrayPrototype%': ['Int16Array', 'prototype'],
+	'%Int32ArrayPrototype%': ['Int32Array', 'prototype'],
+	'%JSONParse%': ['JSON', 'parse'],
+	'%JSONStringify%': ['JSON', 'stringify'],
+	'%MapPrototype%': ['Map', 'prototype'],
+	'%NumberPrototype%': ['Number', 'prototype'],
+	'%ObjectPrototype%': ['Object', 'prototype'],
+	'%ObjProto_toString%': ['Object', 'prototype', 'toString'],
+	'%ObjProto_valueOf%': ['Object', 'prototype', 'valueOf'],
+	'%PromisePrototype%': ['Promise', 'prototype'],
+	'%PromiseProto_then%': ['Promise', 'prototype', 'then'],
+	'%Promise_all%': ['Promise', 'all'],
+	'%Promise_reject%': ['Promise', 'reject'],
+	'%Promise_resolve%': ['Promise', 'resolve'],
+	'%RangeErrorPrototype%': ['RangeError', 'prototype'],
+	'%ReferenceErrorPrototype%': ['ReferenceError', 'prototype'],
+	'%RegExpPrototype%': ['RegExp', 'prototype'],
+	'%SetPrototype%': ['Set', 'prototype'],
+	'%SharedArrayBufferPrototype%': ['SharedArrayBuffer', 'prototype'],
+	'%StringPrototype%': ['String', 'prototype'],
+	'%SymbolPrototype%': ['Symbol', 'prototype'],
+	'%SyntaxErrorPrototype%': ['SyntaxError', 'prototype'],
+	'%TypedArrayPrototype%': ['TypedArray', 'prototype'],
+	'%TypeErrorPrototype%': ['TypeError', 'prototype'],
+	'%Uint8ArrayPrototype%': ['Uint8Array', 'prototype'],
+	'%Uint8ClampedArrayPrototype%': ['Uint8ClampedArray', 'prototype'],
+	'%Uint16ArrayPrototype%': ['Uint16Array', 'prototype'],
+	'%Uint32ArrayPrototype%': ['Uint32Array', 'prototype'],
+	'%URIErrorPrototype%': ['URIError', 'prototype'],
+	'%WeakMapPrototype%': ['WeakMap', 'prototype'],
+	'%WeakSetPrototype%': ['WeakSet', 'prototype']
+};
+
+var bind = require('function-bind');
+var hasOwn = require('hasown');
+var $concat = bind.call($call, Array.prototype.concat);
+var $spliceApply = bind.call($apply, Array.prototype.splice);
+var $replace = bind.call($call, String.prototype.replace);
+var $strSlice = bind.call($call, String.prototype.slice);
+var $exec = bind.call($call, RegExp.prototype.exec);
+
+/* adapted from https://github.com/lodash/lodash/blob/4.17.15/dist/lodash.js#L6735-L6744 */
+var rePropName = /[^%.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|%$))/g;
+var reEscapeChar = /\\(\\)?/g; /** Used to match backslashes in property paths. */
+var stringToPath = function stringToPath(string) {
+	var first = $strSlice(string, 0, 1);
+	var last = $strSlice(string, -1);
+	if (first === '%' && last !== '%') {
+		throw new $SyntaxError('invalid intrinsic syntax, expected closing `%`');
+	} else if (last === '%' && first !== '%') {
+		throw new $SyntaxError('invalid intrinsic syntax, expected opening `%`');
+	}
+	var result = [];
+	$replace(string, rePropName, function (match, number, quote, subString) {
+		result[result.length] = quote ? $replace(subString, reEscapeChar, '$1') : number || match;
+	});
+	return result;
+};
+/* end adaptation */
+
+var getBaseIntrinsic = function getBaseIntrinsic(name, allowMissing) {
+	var intrinsicName = name;
+	var alias;
+	if (hasOwn(LEGACY_ALIASES, intrinsicName)) {
+		alias = LEGACY_ALIASES[intrinsicName];
+		intrinsicName = '%' + alias[0] + '%';
+	}
+
+	if (hasOwn(INTRINSICS, intrinsicName)) {
+		var value = INTRINSICS[intrinsicName];
+		if (value === needsEval) {
+			value = doEval(intrinsicName);
+		}
+		if (typeof value === 'undefined' && !allowMissing) {
+			throw new $TypeError('intrinsic ' + name + ' exists, but is not available. Please file an issue!');
+		}
+
+		return {
+			alias: alias,
+			name: intrinsicName,
+			value: value
+		};
+	}
+
+	throw new $SyntaxError('intrinsic ' + name + ' does not exist!');
+};
+
+module.exports = function GetIntrinsic(name, allowMissing) {
+	if (typeof name !== 'string' || name.length === 0) {
+		throw new $TypeError('intrinsic name must be a non-empty string');
+	}
+	if (arguments.length > 1 && typeof allowMissing !== 'boolean') {
+		throw new $TypeError('"allowMissing" argument must be a boolean');
+	}
+
+	if ($exec(/^%?[^%]*%?$/, name) === null) {
+		throw new $SyntaxError('`%` may not be present anywhere but at the beginning and end of the intrinsic name');
+	}
+	var parts = stringToPath(name);
+	var intrinsicBaseName = parts.length > 0 ? parts[0] : '';
+
+	var intrinsic = getBaseIntrinsic('%' + intrinsicBaseName + '%', allowMissing);
+	var intrinsicRealName = intrinsic.name;
+	var value = intrinsic.value;
+	var skipFurtherCaching = false;
+
+	var alias = intrinsic.alias;
+	if (alias) {
+		intrinsicBaseName = alias[0];
+		$spliceApply(parts, $concat([0, 1], alias));
+	}
+
+	for (var i = 1, isOwn = true; i < parts.length; i += 1) {
+		var part = parts[i];
+		var first = $strSlice(part, 0, 1);
+		var last = $strSlice(part, -1);
+		if (
+			(
+				(first === '"' || first === "'" || first === '`')
+				|| (last === '"' || last === "'" || last === '`')
+			)
+			&& first !== last
+		) {
+			throw new $SyntaxError('property names with quotes must have matching quotes');
+		}
+		if (part === 'constructor' || !isOwn) {
+			skipFurtherCaching = true;
+		}
+
+		intrinsicBaseName += '.' + part;
+		intrinsicRealName = '%' + intrinsicBaseName + '%';
+
+		if (hasOwn(INTRINSICS, intrinsicRealName)) {
+			value = INTRINSICS[intrinsicRealName];
+		} else if (value != null) {
+			if (!(part in value)) {
+				if (!allowMissing) {
+					throw new $TypeError('base intrinsic for ' + name + ' exists, but the property is not available.');
+				}
+				return void undefined;
+			}
+			if ($gOPD && (i + 1) >= parts.length) {
+				var desc = $gOPD(value, part);
+				isOwn = !!desc;
+
+				// By convention, when a data property is converted to an accessor
+				// property to emulate a data property that does not suffer from
+				// the override mistake, that accessor's getter is marked with
+				// an `originalValue` property. Here, when we detect this, we
+				// uphold the illusion by pretending to see that original data
+				// property, i.e., returning the value rather than the getter
+				// itself.
+				if (isOwn && 'get' in desc && !('originalValue' in desc.get)) {
+					value = desc.get;
+				} else {
+					value = value[part];
+				}
+			} else {
+				isOwn = hasOwn(value, part);
+				value = value[part];
+			}
+
+			if (isOwn && !skipFurtherCaching) {
+				INTRINSICS[intrinsicRealName] = value;
+			}
+		}
+	}
+	return value;
+};
diff --git a/backend/node_modules/get-intrinsic/package.json b/backend/node_modules/get-intrinsic/package.json
new file mode 100644
index 0000000..f941bfe
--- /dev/null
+++ b/backend/node_modules/get-intrinsic/package.json
@@ -0,0 +1,97 @@
+{
+	"name": "get-intrinsic",
+	"version": "1.2.7",
+	"description": "Get and robustly cache all JS language-level intrinsics at first require time",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./package.json": "./package.json"
+	},
+	"sideEffects": false,
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prepublishOnly": "safe-publish-latest",
+		"prelint": "evalmd README.md",
+		"lint": "eslint --ext=.js,.mjs .",
+		"pretest": "npm run lint",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@'>= 10.2' audit --production",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/get-intrinsic.git"
+	},
+	"keywords": [
+		"javascript",
+		"ecmascript",
+		"es",
+		"js",
+		"intrinsic",
+		"getintrinsic",
+		"es-abstract"
+	],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"funding": {
+		"url": "https://github.com/sponsors/ljharb"
+	},
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/get-intrinsic/issues"
+	},
+	"homepage": "https://github.com/ljharb/get-intrinsic#readme",
+	"dependencies": {
+		"call-bind-apply-helpers": "^1.0.1",
+		"es-define-property": "^1.0.1",
+		"es-errors": "^1.3.0",
+		"es-object-atoms": "^1.0.0",
+		"function-bind": "^1.1.2",
+		"get-proto": "^1.0.0",
+		"gopd": "^1.2.0",
+		"has-symbols": "^1.1.0",
+		"hasown": "^2.0.2",
+		"math-intrinsics": "^1.1.0"
+	},
+	"devDependencies": {
+		"@ljharb/eslint-config": "^21.1.1",
+		"auto-changelog": "^2.5.0",
+		"call-bound": "^1.0.3",
+		"encoding": "^0.1.13",
+		"es-abstract": "^1.23.8",
+		"es-value-fixtures": "^1.5.0",
+		"eslint": "=8.8.0",
+		"evalmd": "^0.0.19",
+		"for-each": "^0.3.3",
+		"make-async-function": "^1.0.0",
+		"make-async-generator-function": "^1.0.0",
+		"make-generator-function": "^2.0.0",
+		"mock-property": "^1.1.0",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"object-inspect": "^1.13.3",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"testling": {
+		"files": "test/GetIntrinsic.js"
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/backend/node_modules/get-intrinsic/test/GetIntrinsic.js b/backend/node_modules/get-intrinsic/test/GetIntrinsic.js
new file mode 100644
index 0000000..d9c0f30
--- /dev/null
+++ b/backend/node_modules/get-intrinsic/test/GetIntrinsic.js
@@ -0,0 +1,274 @@
+'use strict';
+
+var GetIntrinsic = require('../');
+
+var test = require('tape');
+var forEach = require('for-each');
+var debug = require('object-inspect');
+var generatorFns = require('make-generator-function')();
+var asyncFns = require('make-async-function').list();
+var asyncGenFns = require('make-async-generator-function')();
+var mockProperty = require('mock-property');
+
+var callBound = require('call-bound');
+var v = require('es-value-fixtures');
+var $gOPD = require('gopd');
+var DefinePropertyOrThrow = require('es-abstract/2023/DefinePropertyOrThrow');
+
+var $isProto = callBound('%Object.prototype.isPrototypeOf%');
+
+test('export', function (t) {
+	t.equal(typeof GetIntrinsic, 'function', 'it is a function');
+	t.equal(GetIntrinsic.length, 2, 'function has length of 2');
+
+	t.end();
+});
+
+test('throws', function (t) {
+	t['throws'](
+		function () { GetIntrinsic('not an intrinsic'); },
+		SyntaxError,
+		'nonexistent intrinsic throws a syntax error'
+	);
+
+	t['throws'](
+		function () { GetIntrinsic(''); },
+		TypeError,
+		'empty string intrinsic throws a type error'
+	);
+
+	t['throws'](
+		function () { GetIntrinsic('.'); },
+		SyntaxError,
+		'"just a dot" intrinsic throws a syntax error'
+	);
+
+	t['throws'](
+		function () { GetIntrinsic('%String'); },
+		SyntaxError,
+		'Leading % without trailing % throws a syntax error'
+	);
+
+	t['throws'](
+		function () { GetIntrinsic('String%'); },
+		SyntaxError,
+		'Trailing % without leading % throws a syntax error'
+	);
+
+	t['throws'](
+		function () { GetIntrinsic("String['prototype]"); },
+		SyntaxError,
+		'Dynamic property access is disallowed for intrinsics (unterminated string)'
+	);
+
+	t['throws'](
+		function () { GetIntrinsic('%Proxy.prototype.undefined%'); },
+		TypeError,
+		"Throws when middle part doesn't exist (%Proxy.prototype.undefined%)"
+	);
+
+	t['throws'](
+		function () { GetIntrinsic('%Array.prototype%garbage%'); },
+		SyntaxError,
+		'Throws with extra percent signs'
+	);
+
+	t['throws'](
+		function () { GetIntrinsic('%Array.prototype%push%'); },
+		SyntaxError,
+		'Throws with extra percent signs, even on an existing intrinsic'
+	);
+
+	forEach(v.nonStrings, function (nonString) {
+		t['throws'](
+			function () { GetIntrinsic(nonString); },
+			TypeError,
+			debug(nonString) + ' is not a String'
+		);
+	});
+
+	forEach(v.nonBooleans, function (nonBoolean) {
+		t['throws'](
+			function () { GetIntrinsic('%', nonBoolean); },
+			TypeError,
+			debug(nonBoolean) + ' is not a Boolean'
+		);
+	});
+
+	forEach([
+		'toString',
+		'propertyIsEnumerable',
+		'hasOwnProperty'
+	], function (objectProtoMember) {
+		t['throws'](
+			function () { GetIntrinsic(objectProtoMember); },
+			SyntaxError,
+			debug(objectProtoMember) + ' is not an intrinsic'
+		);
+	});
+
+	t.end();
+});
+
+test('base intrinsics', function (t) {
+	t.equal(GetIntrinsic('%Object%'), Object, '%Object% yields Object');
+	t.equal(GetIntrinsic('Object'), Object, 'Object yields Object');
+	t.equal(GetIntrinsic('%Array%'), Array, '%Array% yields Array');
+	t.equal(GetIntrinsic('Array'), Array, 'Array yields Array');
+
+	t.end();
+});
+
+test('dotted paths', function (t) {
+	t.equal(GetIntrinsic('%Object.prototype.toString%'), Object.prototype.toString, '%Object.prototype.toString% yields Object.prototype.toString');
+	t.equal(GetIntrinsic('Object.prototype.toString'), Object.prototype.toString, 'Object.prototype.toString yields Object.prototype.toString');
+	t.equal(GetIntrinsic('%Array.prototype.push%'), Array.prototype.push, '%Array.prototype.push% yields Array.prototype.push');
+	t.equal(GetIntrinsic('Array.prototype.push'), Array.prototype.push, 'Array.prototype.push yields Array.prototype.push');
+
+	test('underscore paths are aliases for dotted paths', { skip: !Object.isFrozen || Object.isFrozen(Object.prototype) }, function (st) {
+		var original = GetIntrinsic('%ObjProto_toString%');
+
+		forEach([
+			'%Object.prototype.toString%',
+			'Object.prototype.toString',
+			'%ObjectPrototype.toString%',
+			'ObjectPrototype.toString',
+			'%ObjProto_toString%',
+			'ObjProto_toString'
+		], function (name) {
+			DefinePropertyOrThrow(Object.prototype, 'toString', {
+				'[[Value]]': function toString() {
+					return original.apply(this, arguments);
+				}
+			});
+			st.equal(GetIntrinsic(name), original, name + ' yields original Object.prototype.toString');
+		});
+
+		DefinePropertyOrThrow(Object.prototype, 'toString', { '[[Value]]': original });
+		st.end();
+	});
+
+	test('dotted paths cache', { skip: !Object.isFrozen || Object.isFrozen(Object.prototype) }, function (st) {
+		var original = GetIntrinsic('%Object.prototype.propertyIsEnumerable%');
+
+		forEach([
+			'%Object.prototype.propertyIsEnumerable%',
+			'Object.prototype.propertyIsEnumerable',
+			'%ObjectPrototype.propertyIsEnumerable%',
+			'ObjectPrototype.propertyIsEnumerable'
+		], function (name) {
+			var restore = mockProperty(Object.prototype, 'propertyIsEnumerable', {
+				value: function propertyIsEnumerable() {
+					return original.apply(this, arguments);
+				}
+			});
+			st.equal(GetIntrinsic(name), original, name + ' yields cached Object.prototype.propertyIsEnumerable');
+
+			restore();
+		});
+
+		st.end();
+	});
+
+	test('dotted path reports correct error', function (st) {
+		st['throws'](function () {
+			GetIntrinsic('%NonExistentIntrinsic.prototype.property%');
+		}, /%NonExistentIntrinsic%/, 'The base intrinsic of %NonExistentIntrinsic.prototype.property% is %NonExistentIntrinsic%');
+
+		st['throws'](function () {
+			GetIntrinsic('%NonExistentIntrinsicPrototype.property%');
+		}, /%NonExistentIntrinsicPrototype%/, 'The base intrinsic of %NonExistentIntrinsicPrototype.property% is %NonExistentIntrinsicPrototype%');
+
+		st.end();
+	});
+
+	t.end();
+});
+
+test('accessors', { skip: !$gOPD || typeof Map !== 'function' }, function (t) {
+	var actual = $gOPD(Map.prototype, 'size');
+	t.ok(actual, 'Map.prototype.size has a descriptor');
+	t.equal(typeof actual.get, 'function', 'Map.prototype.size has a getter function');
+	t.equal(GetIntrinsic('%Map.prototype.size%'), actual.get, '%Map.prototype.size% yields the getter for it');
+	t.equal(GetIntrinsic('Map.prototype.size'), actual.get, 'Map.prototype.size yields the getter for it');
+
+	t.end();
+});
+
+test('generator functions', { skip: !generatorFns.length }, function (t) {
+	var $GeneratorFunction = GetIntrinsic('%GeneratorFunction%');
+	var $GeneratorFunctionPrototype = GetIntrinsic('%Generator%');
+	var $GeneratorPrototype = GetIntrinsic('%GeneratorPrototype%');
+
+	forEach(generatorFns, function (genFn) {
+		var fnName = genFn.name;
+		fnName = fnName ? "'" + fnName + "'" : 'genFn';
+
+		t.ok(genFn instanceof $GeneratorFunction, fnName + ' instanceof %GeneratorFunction%');
+		t.ok($isProto($GeneratorFunctionPrototype, genFn), '%Generator% is prototype of ' + fnName);
+		t.ok($isProto($GeneratorPrototype, genFn.prototype), '%GeneratorPrototype% is prototype of ' + fnName + '.prototype');
+	});
+
+	t.end();
+});
+
+test('async functions', { skip: !asyncFns.length }, function (t) {
+	var $AsyncFunction = GetIntrinsic('%AsyncFunction%');
+	var $AsyncFunctionPrototype = GetIntrinsic('%AsyncFunctionPrototype%');
+
+	forEach(asyncFns, function (asyncFn) {
+		var fnName = asyncFn.name;
+		fnName = fnName ? "'" + fnName + "'" : 'asyncFn';
+
+		t.ok(asyncFn instanceof $AsyncFunction, fnName + ' instanceof %AsyncFunction%');
+		t.ok($isProto($AsyncFunctionPrototype, asyncFn), '%AsyncFunctionPrototype% is prototype of ' + fnName);
+	});
+
+	t.end();
+});
+
+test('async generator functions', { skip: asyncGenFns.length === 0 }, function (t) {
+	var $AsyncGeneratorFunction = GetIntrinsic('%AsyncGeneratorFunction%');
+	var $AsyncGeneratorFunctionPrototype = GetIntrinsic('%AsyncGenerator%');
+	var $AsyncGeneratorPrototype = GetIntrinsic('%AsyncGeneratorPrototype%');
+
+	forEach(asyncGenFns, function (asyncGenFn) {
+		var fnName = asyncGenFn.name;
+		fnName = fnName ? "'" + fnName + "'" : 'asyncGenFn';
+
+		t.ok(asyncGenFn instanceof $AsyncGeneratorFunction, fnName + ' instanceof %AsyncGeneratorFunction%');
+		t.ok($isProto($AsyncGeneratorFunctionPrototype, asyncGenFn), '%AsyncGenerator% is prototype of ' + fnName);
+		t.ok($isProto($AsyncGeneratorPrototype, asyncGenFn.prototype), '%AsyncGeneratorPrototype% is prototype of ' + fnName + '.prototype');
+	});
+
+	t.end();
+});
+
+test('%ThrowTypeError%', function (t) {
+	var $ThrowTypeError = GetIntrinsic('%ThrowTypeError%');
+
+	t.equal(typeof $ThrowTypeError, 'function', 'is a function');
+	t['throws'](
+		$ThrowTypeError,
+		TypeError,
+		'%ThrowTypeError% throws a TypeError'
+	);
+
+	t.end();
+});
+
+test('allowMissing', { skip: asyncGenFns.length > 0 }, function (t) {
+	t['throws'](
+		function () { GetIntrinsic('%AsyncGeneratorPrototype%'); },
+		TypeError,
+		'throws when missing'
+	);
+
+	t.equal(
+		GetIntrinsic('%AsyncGeneratorPrototype%', true),
+		undefined,
+		'does not throw when allowMissing'
+	);
+
+	t.end();
+});
diff --git a/backend/node_modules/get-proto/.eslintrc b/backend/node_modules/get-proto/.eslintrc
new file mode 100644
index 0000000..1d21a8a
--- /dev/null
+++ b/backend/node_modules/get-proto/.eslintrc
@@ -0,0 +1,10 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"id-length": "off",
+		"sort-keys": "off",
+	},
+}
diff --git a/backend/node_modules/get-proto/.github/FUNDING.yml b/backend/node_modules/get-proto/.github/FUNDING.yml
new file mode 100644
index 0000000..93183ef
--- /dev/null
+++ b/backend/node_modules/get-proto/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/get-proto
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/get-proto/.nycrc b/backend/node_modules/get-proto/.nycrc
new file mode 100644
index 0000000..bdd626c
--- /dev/null
+++ b/backend/node_modules/get-proto/.nycrc
@@ -0,0 +1,9 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/get-proto/CHANGELOG.md b/backend/node_modules/get-proto/CHANGELOG.md
new file mode 100644
index 0000000..5860229
--- /dev/null
+++ b/backend/node_modules/get-proto/CHANGELOG.md
@@ -0,0 +1,21 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.0.1](https://github.com/ljharb/get-proto/compare/v1.0.0...v1.0.1) - 2025-01-02
+
+### Commits
+
+- [Fix] for the `Object.getPrototypeOf` window, throw for non-objects [`7fe6508`](https://github.com/ljharb/get-proto/commit/7fe6508b71419ebe1976bedb86001d1feaeaa49a)
+
+## v1.0.0 - 2025-01-01
+
+### Commits
+
+- Initial implementation, tests, readme, types [`5c70775`](https://github.com/ljharb/get-proto/commit/5c707751e81c3deeb2cf980d185fc7fd43611415)
+- Initial commit [`7c65c2a`](https://github.com/ljharb/get-proto/commit/7c65c2ad4e33d5dae2f219ebe1a046ae2256972c)
+- npm init [`0b8cf82`](https://github.com/ljharb/get-proto/commit/0b8cf824c9634e4a34ef7dd2a2cdc5be6ac79518)
+- Only apps should have lockfiles [`a6d1bff`](https://github.com/ljharb/get-proto/commit/a6d1bffc364f5828377cea7194558b2dbef7aea2)
diff --git a/backend/node_modules/get-proto/LICENSE b/backend/node_modules/get-proto/LICENSE
new file mode 100644
index 0000000..eeabd1c
--- /dev/null
+++ b/backend/node_modules/get-proto/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2025 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/get-proto/Object.getPrototypeOf.d.ts b/backend/node_modules/get-proto/Object.getPrototypeOf.d.ts
new file mode 100644
index 0000000..028b3ff
--- /dev/null
+++ b/backend/node_modules/get-proto/Object.getPrototypeOf.d.ts
@@ -0,0 +1,5 @@
+declare function getProto<O extends object>(object: O): object | null;
+
+declare const x: typeof getProto | null;
+
+export = x;
\ No newline at end of file
diff --git a/backend/node_modules/get-proto/Object.getPrototypeOf.js b/backend/node_modules/get-proto/Object.getPrototypeOf.js
new file mode 100644
index 0000000..c2cbbdf
--- /dev/null
+++ b/backend/node_modules/get-proto/Object.getPrototypeOf.js
@@ -0,0 +1,6 @@
+'use strict';
+
+var $Object = require('es-object-atoms');
+
+/** @type {import('./Object.getPrototypeOf')} */
+module.exports = $Object.getPrototypeOf || null;
diff --git a/backend/node_modules/get-proto/README.md b/backend/node_modules/get-proto/README.md
new file mode 100644
index 0000000..f8b4cce
--- /dev/null
+++ b/backend/node_modules/get-proto/README.md
@@ -0,0 +1,50 @@
+# get-proto <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+Robustly get the [[Prototype]] of an object. Uses the best available method.
+
+## Getting started
+
+```sh
+npm install --save get-proto
+```
+
+## Usage/Examples
+
+```js
+const assert = require('assert');
+const getProto = require('get-proto');
+
+const a = { a: 1, b: 2, [Symbol.toStringTag]: 'foo' };
+const b = { c: 3, __proto__: a };
+
+assert.equal(getProto(b), a);
+assert.equal(getProto(a), Object.prototype);
+assert.equal(getProto({ __proto__: null }), null);
+```
+
+## Tests
+
+Clone the repo, `npm install`, and run `npm test`
+
+[package-url]: https://npmjs.org/package/get-proto
+[npm-version-svg]: https://versionbadg.es/ljharb/get-proto.svg
+[deps-svg]: https://david-dm.org/ljharb/get-proto.svg
+[deps-url]: https://david-dm.org/ljharb/get-proto
+[dev-deps-svg]: https://david-dm.org/ljharb/get-proto/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/get-proto#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/get-proto.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/get-proto.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/get-proto.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=get-proto
+[codecov-image]: https://codecov.io/gh/ljharb/get-proto/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/get-proto/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/get-proto
+[actions-url]: https://github.com/ljharb/get-proto/actions
diff --git a/backend/node_modules/get-proto/Reflect.getPrototypeOf.d.ts b/backend/node_modules/get-proto/Reflect.getPrototypeOf.d.ts
new file mode 100644
index 0000000..2388fe0
--- /dev/null
+++ b/backend/node_modules/get-proto/Reflect.getPrototypeOf.d.ts
@@ -0,0 +1,3 @@
+declare const x: typeof Reflect.getPrototypeOf | null;
+
+export = x;
\ No newline at end of file
diff --git a/backend/node_modules/get-proto/Reflect.getPrototypeOf.js b/backend/node_modules/get-proto/Reflect.getPrototypeOf.js
new file mode 100644
index 0000000..e6c51be
--- /dev/null
+++ b/backend/node_modules/get-proto/Reflect.getPrototypeOf.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./Reflect.getPrototypeOf')} */
+module.exports = (typeof Reflect !== 'undefined' && Reflect.getPrototypeOf) || null;
diff --git a/backend/node_modules/get-proto/index.d.ts b/backend/node_modules/get-proto/index.d.ts
new file mode 100644
index 0000000..2c021f3
--- /dev/null
+++ b/backend/node_modules/get-proto/index.d.ts
@@ -0,0 +1,5 @@
+declare function getProto<O extends object>(object: O): object | null;
+
+declare const x: typeof getProto | null;
+
+export = x;
diff --git a/backend/node_modules/get-proto/index.js b/backend/node_modules/get-proto/index.js
new file mode 100644
index 0000000..7e5747b
--- /dev/null
+++ b/backend/node_modules/get-proto/index.js
@@ -0,0 +1,27 @@
+'use strict';
+
+var reflectGetProto = require('./Reflect.getPrototypeOf');
+var originalGetProto = require('./Object.getPrototypeOf');
+
+var getDunderProto = require('dunder-proto/get');
+
+/** @type {import('.')} */
+module.exports = reflectGetProto
+	? function getProto(O) {
+		// @ts-expect-error TS can't narrow inside a closure, for some reason
+		return reflectGetProto(O);
+	}
+	: originalGetProto
+		? function getProto(O) {
+			if (!O || (typeof O !== 'object' && typeof O !== 'function')) {
+				throw new TypeError('getProto: not an object');
+			}
+			// @ts-expect-error TS can't narrow inside a closure, for some reason
+			return originalGetProto(O);
+		}
+		: getDunderProto
+			? function getProto(O) {
+				// @ts-expect-error TS can't narrow inside a closure, for some reason
+				return getDunderProto(O);
+			}
+			: null;
diff --git a/backend/node_modules/get-proto/package.json b/backend/node_modules/get-proto/package.json
new file mode 100644
index 0000000..9c35cec
--- /dev/null
+++ b/backend/node_modules/get-proto/package.json
@@ -0,0 +1,81 @@
+{
+	"name": "get-proto",
+	"version": "1.0.1",
+	"description": "Robustly get the [[Prototype]] of an object",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./Reflect.getPrototypeOf": "./Reflect.getPrototypeOf.js",
+		"./Object.getPrototypeOf": "./Object.getPrototypeOf.js",
+		"./package.json": "./package.json"
+	},
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prepublishOnly": "safe-publish-latest",
+		"pretest": "npm run --silent lint",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@\">=10.2\" audit --production",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"prelint": "evalmd README.md",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "tsc && attw -P",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/get-proto.git"
+	},
+	"keywords": [
+		"get",
+		"proto",
+		"prototype",
+		"getPrototypeOf",
+		"[[Prototype]]"
+	],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/get-proto/issues"
+	},
+	"homepage": "https://github.com/ljharb/get-proto#readme",
+	"dependencies": {
+		"dunder-proto": "^1.0.1",
+		"es-object-atoms": "^1.0.0"
+	},
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.17.2",
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.3",
+		"@types/tape": "^5.8.0",
+		"auto-changelog": "^2.5.0",
+		"eslint": "=8.8.0",
+		"evalmd": "^0.0.19",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"engines": {
+		"node": ">= 0.4"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"testling": {
+		"files": "test/index.js"
+	}
+}
diff --git a/backend/node_modules/get-proto/test/index.js b/backend/node_modules/get-proto/test/index.js
new file mode 100644
index 0000000..5a2ece2
--- /dev/null
+++ b/backend/node_modules/get-proto/test/index.js
@@ -0,0 +1,68 @@
+'use strict';
+
+var test = require('tape');
+
+var getProto = require('../');
+
+test('getProto', function (t) {
+	t.equal(typeof getProto, 'function', 'is a function');
+
+	t.test('can get', { skip: !getProto }, function (st) {
+		if (getProto) { // TS doesn't understand tape's skip
+			var proto = { b: 2 };
+			st.equal(getProto(proto), Object.prototype, 'proto: returns the [[Prototype]]');
+
+			st.test('nullish value', function (s2t) {
+			// @ts-expect-error
+				s2t['throws'](function () { return getProto(undefined); }, TypeError, 'undefined is not an object');
+				// @ts-expect-error
+				s2t['throws'](function () { return getProto(null); }, TypeError, 'null is not an object');
+				s2t.end();
+			});
+
+			// @ts-expect-error
+			st['throws'](function () { getProto(true); }, 'throws for true');
+			// @ts-expect-error
+			st['throws'](function () { getProto(false); }, 'throws for false');
+			// @ts-expect-error
+			st['throws'](function () { getProto(42); }, 'throws for 42');
+			// @ts-expect-error
+			st['throws'](function () { getProto(NaN); }, 'throws for NaN');
+			// @ts-expect-error
+			st['throws'](function () { getProto(0); }, 'throws for +0');
+			// @ts-expect-error
+			st['throws'](function () { getProto(-0); }, 'throws for -0');
+			// @ts-expect-error
+			st['throws'](function () { getProto(Infinity); }, 'throws for ∞');
+			// @ts-expect-error
+			st['throws'](function () { getProto(-Infinity); }, 'throws for -∞');
+			// @ts-expect-error
+			st['throws'](function () { getProto(''); }, 'throws for empty string');
+			// @ts-expect-error
+			st['throws'](function () { getProto('foo'); }, 'throws for non-empty string');
+			st.equal(getProto(/a/g), RegExp.prototype);
+			st.equal(getProto(new Date()), Date.prototype);
+			st.equal(getProto(function () {}), Function.prototype);
+			st.equal(getProto([]), Array.prototype);
+			st.equal(getProto({}), Object.prototype);
+
+			var nullObject = { __proto__: null };
+			if ('toString' in nullObject) {
+				st.comment('no null objects in this engine');
+				st.equal(getProto(nullObject), Object.prototype, '"null" object has Object.prototype as [[Prototype]]');
+			} else {
+				st.equal(getProto(nullObject), null, 'null object has null [[Prototype]]');
+			}
+		}
+
+		st.end();
+	});
+
+	t.test('can not get', { skip: !!getProto }, function (st) {
+		st.equal(getProto, null);
+
+		st.end();
+	});
+
+	t.end();
+});
diff --git a/backend/node_modules/get-proto/tsconfig.json b/backend/node_modules/get-proto/tsconfig.json
new file mode 100644
index 0000000..60fb90e
--- /dev/null
+++ b/backend/node_modules/get-proto/tsconfig.json
@@ -0,0 +1,9 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		//"target": "es2021",
+	},
+	"exclude": [
+		"coverage",
+	],
+}
diff --git a/backend/node_modules/gopd/.eslintrc b/backend/node_modules/gopd/.eslintrc
new file mode 100644
index 0000000..e2550c0
--- /dev/null
+++ b/backend/node_modules/gopd/.eslintrc
@@ -0,0 +1,16 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"func-style": [2, "declaration"],
+		"id-length": 0,
+		"multiline-comment-style": 0,
+		"new-cap": [2, {
+			"capIsNewExceptions": [
+				"GetIntrinsic",
+			],
+		}],
+	},
+}
diff --git a/backend/node_modules/gopd/.github/FUNDING.yml b/backend/node_modules/gopd/.github/FUNDING.yml
new file mode 100644
index 0000000..94a44a8
--- /dev/null
+++ b/backend/node_modules/gopd/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/gopd
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/gopd/CHANGELOG.md b/backend/node_modules/gopd/CHANGELOG.md
new file mode 100644
index 0000000..87f5727
--- /dev/null
+++ b/backend/node_modules/gopd/CHANGELOG.md
@@ -0,0 +1,45 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.2.0](https://github.com/ljharb/gopd/compare/v1.1.0...v1.2.0) - 2024-12-03
+
+### Commits
+
+- [New] add `gOPD` entry point; remove `get-intrinsic` [`5b61232`](https://github.com/ljharb/gopd/commit/5b61232dedea4591a314bcf16101b1961cee024e)
+
+## [v1.1.0](https://github.com/ljharb/gopd/compare/v1.0.1...v1.1.0) - 2024-11-29
+
+### Commits
+
+- [New] add types [`f585e39`](https://github.com/ljharb/gopd/commit/f585e397886d270e4ba84e53d226e4f9ca2eb0e6)
+- [Dev Deps] update `@ljharb/eslint-config`, `auto-changelog`, `tape` [`0b8e4fd`](https://github.com/ljharb/gopd/commit/0b8e4fded64397a7726a9daa144a6cc9a5e2edfa)
+- [Dev Deps] update `aud`, `npmignore`, `tape` [`48378b2`](https://github.com/ljharb/gopd/commit/48378b2443f09a4f7efbd0fb6c3ee845a6cabcf3)
+- [Dev Deps] update `@ljharb/eslint-config`, `aud`, `tape` [`78099ee`](https://github.com/ljharb/gopd/commit/78099eeed41bfdc134c912280483689cc8861c31)
+- [Tests] replace `aud` with `npm audit` [`4e0d0ac`](https://github.com/ljharb/gopd/commit/4e0d0ac47619d24a75318a8e1f543ee04b2a2632)
+- [meta] add missing `engines.node` [`1443316`](https://github.com/ljharb/gopd/commit/14433165d07835c680155b3dfd62d9217d735eca)
+- [Deps] update `get-intrinsic` [`eee5f51`](https://github.com/ljharb/gopd/commit/eee5f51769f3dbaf578b70e2a3199116b01aa670)
+- [Deps] update `get-intrinsic` [`550c378`](https://github.com/ljharb/gopd/commit/550c3780e3a9c77b62565712a001b4ed64ea61f5)
+- [Dev Deps] add missing peer dep [`8c2ecf8`](https://github.com/ljharb/gopd/commit/8c2ecf848122e4e30abfc5b5086fb48b390dce75)
+
+## [v1.0.1](https://github.com/ljharb/gopd/compare/v1.0.0...v1.0.1) - 2022-11-01
+
+### Commits
+
+- [Fix] actually export gOPD instead of dP [`4b624bf`](https://github.com/ljharb/gopd/commit/4b624bfbeff788c5e3ff16d9443a83627847234f)
+
+## v1.0.0 - 2022-11-01
+
+### Commits
+
+- Initial implementation, tests, readme [`0911e01`](https://github.com/ljharb/gopd/commit/0911e012cd642092bd88b732c161c58bf4f20bea)
+- Initial commit [`b84e33f`](https://github.com/ljharb/gopd/commit/b84e33f5808a805ac57ff88d4247ad935569acbe)
+- [actions] add reusable workflows [`12ae28a`](https://github.com/ljharb/gopd/commit/12ae28ae5f50f86e750215b6e2188901646d0119)
+- npm init [`280118b`](https://github.com/ljharb/gopd/commit/280118badb45c80b4483836b5cb5315bddf6e582)
+- [meta] add `auto-changelog` [`bb78de5`](https://github.com/ljharb/gopd/commit/bb78de5639a180747fb290c28912beaaf1615709)
+- [meta] create FUNDING.yml; add `funding` in package.json [`11c22e6`](https://github.com/ljharb/gopd/commit/11c22e6355bb01f24e7fac4c9bb3055eb5b25002)
+- [meta] use `npmignore` to autogenerate an npmignore file [`4f4537a`](https://github.com/ljharb/gopd/commit/4f4537a843b39f698c52f072845092e6fca345bb)
+- Only apps should have lockfiles [`c567022`](https://github.com/ljharb/gopd/commit/c567022a18573aa7951cf5399445d9840e23e98b)
diff --git a/backend/node_modules/gopd/LICENSE b/backend/node_modules/gopd/LICENSE
new file mode 100644
index 0000000..6abfe14
--- /dev/null
+++ b/backend/node_modules/gopd/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2022 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/gopd/README.md b/backend/node_modules/gopd/README.md
new file mode 100644
index 0000000..784e56a
--- /dev/null
+++ b/backend/node_modules/gopd/README.md
@@ -0,0 +1,40 @@
+# gopd <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+`Object.getOwnPropertyDescriptor`, but accounts for IE's broken implementation.
+
+## Usage
+
+```javascript
+var gOPD = require('gopd');
+var assert = require('assert');
+
+if (gOPD) {
+	assert.equal(typeof gOPD, 'function', 'descriptors supported');
+	// use gOPD like Object.getOwnPropertyDescriptor here
+} else {
+	assert.ok(!gOPD, 'descriptors not supported');
+}
+```
+
+[package-url]: https://npmjs.org/package/gopd
+[npm-version-svg]: https://versionbadg.es/ljharb/gopd.svg
+[deps-svg]: https://david-dm.org/ljharb/gopd.svg
+[deps-url]: https://david-dm.org/ljharb/gopd
+[dev-deps-svg]: https://david-dm.org/ljharb/gopd/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/gopd#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/gopd.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/gopd.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/gopd.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=gopd
+[codecov-image]: https://codecov.io/gh/ljharb/gopd/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/gopd/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/gopd
+[actions-url]: https://github.com/ljharb/gopd/actions
diff --git a/backend/node_modules/gopd/gOPD.d.ts b/backend/node_modules/gopd/gOPD.d.ts
new file mode 100644
index 0000000..def48a3
--- /dev/null
+++ b/backend/node_modules/gopd/gOPD.d.ts
@@ -0,0 +1 @@
+export = Object.getOwnPropertyDescriptor;
diff --git a/backend/node_modules/gopd/gOPD.js b/backend/node_modules/gopd/gOPD.js
new file mode 100644
index 0000000..cf9616c
--- /dev/null
+++ b/backend/node_modules/gopd/gOPD.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./gOPD')} */
+module.exports = Object.getOwnPropertyDescriptor;
diff --git a/backend/node_modules/gopd/index.d.ts b/backend/node_modules/gopd/index.d.ts
new file mode 100644
index 0000000..e228065
--- /dev/null
+++ b/backend/node_modules/gopd/index.d.ts
@@ -0,0 +1,5 @@
+declare function gOPD<O extends object, K extends keyof O>(obj: O, prop: K): PropertyDescriptor | undefined;
+
+declare const fn: typeof gOPD | undefined | null;
+
+export = fn;
\ No newline at end of file
diff --git a/backend/node_modules/gopd/index.js b/backend/node_modules/gopd/index.js
new file mode 100644
index 0000000..a4081b0
--- /dev/null
+++ b/backend/node_modules/gopd/index.js
@@ -0,0 +1,15 @@
+'use strict';
+
+/** @type {import('.')} */
+var $gOPD = require('./gOPD');
+
+if ($gOPD) {
+	try {
+		$gOPD([], 'length');
+	} catch (e) {
+		// IE 8 has a broken gOPD
+		$gOPD = null;
+	}
+}
+
+module.exports = $gOPD;
diff --git a/backend/node_modules/gopd/package.json b/backend/node_modules/gopd/package.json
new file mode 100644
index 0000000..01c5ffa
--- /dev/null
+++ b/backend/node_modules/gopd/package.json
@@ -0,0 +1,77 @@
+{
+	"name": "gopd",
+	"version": "1.2.0",
+	"description": "`Object.getOwnPropertyDescriptor`, but accounts for IE's broken implementation.",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./gOPD": "./gOPD.js",
+		"./package.json": "./package.json"
+	},
+	"sideEffects": false,
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublishOnly": "safe-publish-latest",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prelint": "tsc -p . && attw -P",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "evalmd README.md",
+		"pretest": "npm run lint",
+		"tests-only": "tape 'test/**/*.js'",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@'>=10.2' audit --production",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/gopd.git"
+	},
+	"keywords": [
+		"ecmascript",
+		"javascript",
+		"getownpropertydescriptor",
+		"property",
+		"descriptor"
+	],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"funding": {
+		"url": "https://github.com/sponsors/ljharb"
+	},
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/gopd/issues"
+	},
+	"homepage": "https://github.com/ljharb/gopd#readme",
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.17.0",
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.0",
+		"@types/tape": "^5.6.5",
+		"auto-changelog": "^2.5.0",
+		"encoding": "^0.1.13",
+		"eslint": "=8.8.0",
+		"evalmd": "^0.0.19",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/backend/node_modules/gopd/test/index.js b/backend/node_modules/gopd/test/index.js
new file mode 100644
index 0000000..6f43453
--- /dev/null
+++ b/backend/node_modules/gopd/test/index.js
@@ -0,0 +1,36 @@
+'use strict';
+
+var test = require('tape');
+var gOPD = require('../');
+
+test('gOPD', function (t) {
+	t.test('supported', { skip: !gOPD }, function (st) {
+		st.equal(typeof gOPD, 'function', 'is a function');
+
+		var obj = { x: 1 };
+		st.ok('x' in obj, 'property exists');
+
+		// @ts-expect-error TS can't figure out narrowing from `skip`
+		var desc = gOPD(obj, 'x');
+		st.deepEqual(
+			desc,
+			{
+				configurable: true,
+				enumerable: true,
+				value: 1,
+				writable: true
+			},
+			'descriptor is as expected'
+		);
+
+		st.end();
+	});
+
+	t.test('not supported', { skip: !!gOPD }, function (st) {
+		st.notOk(gOPD, 'is falsy');
+
+		st.end();
+	});
+
+	t.end();
+});
diff --git a/backend/node_modules/gopd/tsconfig.json b/backend/node_modules/gopd/tsconfig.json
new file mode 100644
index 0000000..d9a6668
--- /dev/null
+++ b/backend/node_modules/gopd/tsconfig.json
@@ -0,0 +1,9 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		"target": "es2021",
+	},
+	"exclude": [
+		"coverage",
+	],
+}
diff --git a/backend/node_modules/has-symbols/.eslintrc b/backend/node_modules/has-symbols/.eslintrc
new file mode 100644
index 0000000..2d9a66a
--- /dev/null
+++ b/backend/node_modules/has-symbols/.eslintrc
@@ -0,0 +1,11 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"max-statements-per-line": [2, { "max": 2 }],
+		"no-magic-numbers": 0,
+		"multiline-comment-style": 0,
+	}
+}
diff --git a/backend/node_modules/has-symbols/.github/FUNDING.yml b/backend/node_modules/has-symbols/.github/FUNDING.yml
new file mode 100644
index 0000000..04cf87e
--- /dev/null
+++ b/backend/node_modules/has-symbols/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/has-symbols
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/has-symbols/.nycrc b/backend/node_modules/has-symbols/.nycrc
new file mode 100644
index 0000000..bdd626c
--- /dev/null
+++ b/backend/node_modules/has-symbols/.nycrc
@@ -0,0 +1,9 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/has-symbols/CHANGELOG.md b/backend/node_modules/has-symbols/CHANGELOG.md
new file mode 100644
index 0000000..cc3cf83
--- /dev/null
+++ b/backend/node_modules/has-symbols/CHANGELOG.md
@@ -0,0 +1,91 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.1.0](https://github.com/inspect-js/has-symbols/compare/v1.0.3...v1.1.0) - 2024-12-02
+
+### Commits
+
+- [actions] update workflows [`548c0bf`](https://github.com/inspect-js/has-symbols/commit/548c0bf8c9b1235458df7a1c0490b0064647a282)
+- [actions] further shard; update action deps [`bec56bb`](https://github.com/inspect-js/has-symbols/commit/bec56bb0fb44b43a786686b944875a3175cf3ff3)
+- [meta] use `npmignore` to autogenerate an npmignore file [`ac81032`](https://github.com/inspect-js/has-symbols/commit/ac81032809157e0a079e5264e9ce9b6f1275777e)
+- [New] add types [`6469cbf`](https://github.com/inspect-js/has-symbols/commit/6469cbff1866cfe367b2b3d181d9296ec14b2a3d)
+- [actions] update rebase action to use reusable workflow [`9c9d4d0`](https://github.com/inspect-js/has-symbols/commit/9c9d4d0d8938e4b267acdf8e421f4e92d1716d72)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `tape` [`adb5887`](https://github.com/inspect-js/has-symbols/commit/adb5887ca9444849b08beb5caaa9e1d42320cdfb)
+- [Dev Deps] update `@ljharb/eslint-config`, `aud`, `tape` [`13ec198`](https://github.com/inspect-js/has-symbols/commit/13ec198ec80f1993a87710af1606a1970b22c7cb)
+- [Dev Deps] update `auto-changelog`, `core-js`, `tape` [`941be52`](https://github.com/inspect-js/has-symbols/commit/941be5248387cab1da72509b22acf3fdb223f057)
+- [Tests] replace `aud` with `npm audit` [`74f49e9`](https://github.com/inspect-js/has-symbols/commit/74f49e9a9d17a443020784234a1c53ce765b3559)
+- [Dev Deps] update `npmignore` [`9c0ac04`](https://github.com/inspect-js/has-symbols/commit/9c0ac0452a834f4c2a4b54044f2d6a89f17e9a70)
+- [Dev Deps] add missing peer dep [`52337a5`](https://github.com/inspect-js/has-symbols/commit/52337a5621cced61f846f2afdab7707a8132cc12)
+
+## [v1.0.3](https://github.com/inspect-js/has-symbols/compare/v1.0.2...v1.0.3) - 2022-03-01
+
+### Commits
+
+- [actions] use `node/install` instead of `node/run`; use `codecov` action [`518b28f`](https://github.com/inspect-js/has-symbols/commit/518b28f6c5a516cbccae30794e40aa9f738b1693)
+- [meta] add `bugs` and `homepage` fields; reorder package.json [`c480b13`](https://github.com/inspect-js/has-symbols/commit/c480b13fd6802b557e1cef9749872cb5fdeef744)
+- [actions] reuse common workflows [`01d0ee0`](https://github.com/inspect-js/has-symbols/commit/01d0ee0a8d97c0947f5edb73eb722027a77b2b07)
+- [actions] update codecov uploader [`6424ebe`](https://github.com/inspect-js/has-symbols/commit/6424ebe86b2c9c7c3d2e9bd4413a4e4f168cb275)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog`, `tape` [`dfa7e7f`](https://github.com/inspect-js/has-symbols/commit/dfa7e7ff38b594645d8c8222aab895157fa7e282)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `safe-publish-latest`, `tape` [`0c8d436`](https://github.com/inspect-js/has-symbols/commit/0c8d43685c45189cea9018191d4fd7eca91c9d02)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `tape` [`9026554`](https://github.com/inspect-js/has-symbols/commit/902655442a1bf88e72b42345494ef0c60f5d36ab)
+- [readme] add actions and codecov badges [`eaa9682`](https://github.com/inspect-js/has-symbols/commit/eaa9682f990f481d3acf7a1c7600bec36f7b3adc)
+- [Dev Deps] update `eslint`, `tape` [`bc7a3ba`](https://github.com/inspect-js/has-symbols/commit/bc7a3ba46f27b7743f8a2579732d59d1b9ac791e)
+- [Dev Deps] update `eslint`, `auto-changelog` [`0ace00a`](https://github.com/inspect-js/has-symbols/commit/0ace00af08a88cdd1e6ce0d60357d941c60c2d9f)
+- [meta] use `prepublishOnly` script for npm 7+ [`093f72b`](https://github.com/inspect-js/has-symbols/commit/093f72bc2b0ed00c781f444922a5034257bf561d)
+- [Tests] test on all 16 minors [`9b80d3d`](https://github.com/inspect-js/has-symbols/commit/9b80d3d9102529f04c20ec5b1fcc6e38426c6b03)
+
+## [v1.0.2](https://github.com/inspect-js/has-symbols/compare/v1.0.1...v1.0.2) - 2021-02-27
+
+### Fixed
+
+- [Fix] use a universal way to get the original Symbol [`#11`](https://github.com/inspect-js/has-symbols/issues/11)
+
+### Commits
+
+- [Tests] migrate tests to Github Actions [`90ae798`](https://github.com/inspect-js/has-symbols/commit/90ae79820bdfe7bc703d67f5f3c5e205f98556d3)
+- [meta] do not publish github action workflow files [`29e60a1`](https://github.com/inspect-js/has-symbols/commit/29e60a1b7c25c7f1acf7acff4a9320d0d10c49b4)
+- [Tests] run `nyc` on all tests [`8476b91`](https://github.com/inspect-js/has-symbols/commit/8476b915650d360915abe2522505abf4b0e8f0ae)
+- [readme] fix repo URLs, remove defunct badges [`126288e`](https://github.com/inspect-js/has-symbols/commit/126288ecc1797c0a40247a6b78bcb2e0bc5d7036)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog`, `core-js`, `get-own-property-symbols` [`d84bdfa`](https://github.com/inspect-js/has-symbols/commit/d84bdfa48ac5188abbb4904b42614cd6c030940a)
+- [Tests] fix linting errors [`0df3070`](https://github.com/inspect-js/has-symbols/commit/0df3070b981b6c9f2ee530c09189a7f5c6def839)
+- [actions] add "Allow Edits" workflow [`1e6bc29`](https://github.com/inspect-js/has-symbols/commit/1e6bc29b188f32b9648657b07eda08504be5aa9c)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `tape` [`36cea2a`](https://github.com/inspect-js/has-symbols/commit/36cea2addd4e6ec435f35a2656b4e9ef82498e9b)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `tape` [`1278338`](https://github.com/inspect-js/has-symbols/commit/127833801865fbc2cc8979beb9ca869c7bfe8222)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `tape` [`1493254`](https://github.com/inspect-js/has-symbols/commit/1493254eda13db5fb8fc5e4a3e8324b3d196029d)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `core-js` [`b090bf2`](https://github.com/inspect-js/has-symbols/commit/b090bf214d3679a30edc1e2d729d466ab5183e1d)
+- [actions] switch Automatic Rebase workflow to `pull_request_target` event [`4addb7a`](https://github.com/inspect-js/has-symbols/commit/4addb7ab4dc73f927ae99928d68817554fc21dc0)
+- [Dev Deps] update `auto-changelog`, `tape` [`81d0baf`](https://github.com/inspect-js/has-symbols/commit/81d0baf3816096a89a8558e8043895f7a7d10d8b)
+- [Dev Deps] update `auto-changelog`; add `aud` [`1a4e561`](https://github.com/inspect-js/has-symbols/commit/1a4e5612c25d91c3a03d509721d02630bc4fe3da)
+- [readme] remove unused testling URLs [`3000941`](https://github.com/inspect-js/has-symbols/commit/3000941f958046e923ed8152edb1ef4a599e6fcc)
+- [Tests] only audit prod deps [`692e974`](https://github.com/inspect-js/has-symbols/commit/692e9743c912410e9440207631a643a34b4741a1)
+- [Dev Deps] update `@ljharb/eslint-config` [`51c946c`](https://github.com/inspect-js/has-symbols/commit/51c946c7f6baa793ec5390bb5a45cdce16b4ba76)
+
+## [v1.0.1](https://github.com/inspect-js/has-symbols/compare/v1.0.0...v1.0.1) - 2019-11-16
+
+### Commits
+
+- [Tests] use shared travis-ci configs [`ce396c9`](https://github.com/inspect-js/has-symbols/commit/ce396c9419ff11c43d0da5d05cdbb79f7fb42229)
+- [Tests] up to `node` `v12.4`, `v11.15`, `v10.15`, `v9.11`, `v8.15`, `v7.10`, `v6.17`, `v4.9`; use `nvm install-latest-npm` [`0690732`](https://github.com/inspect-js/has-symbols/commit/0690732801f47ab429f39ba1962f522d5c462d6b)
+- [meta] add `auto-changelog` [`2163d0b`](https://github.com/inspect-js/has-symbols/commit/2163d0b7f36343076b8f947cd1667dd1750f26fc)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `core-js`, `safe-publish-latest`, `tape` [`8e0951f`](https://github.com/inspect-js/has-symbols/commit/8e0951f1a7a2e52068222b7bb73511761e6e4d9c)
+- [actions] add automatic rebasing / merge commit blocking [`b09cdb7`](https://github.com/inspect-js/has-symbols/commit/b09cdb7cd7ee39e7a769878f56e2d6066f5ccd1d)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `safe-publish-latest`, `core-js`, `get-own-property-symbols`, `tape` [`1dd42cd`](https://github.com/inspect-js/has-symbols/commit/1dd42cd86183ed0c50f99b1062345c458babca91)
+- [meta] create FUNDING.yml [`aa57a17`](https://github.com/inspect-js/has-symbols/commit/aa57a17b19708906d1927f821ea8e73394d84ca4)
+- Only apps should have lockfiles [`a2d8bea`](https://github.com/inspect-js/has-symbols/commit/a2d8bea23a97d15c09eaf60f5b107fcf9a4d57aa)
+- [Tests] use `npx aud` instead of `nsp` or `npm audit` with hoops [`9e96cb7`](https://github.com/inspect-js/has-symbols/commit/9e96cb783746cbed0c10ef78e599a8eaa7ebe193)
+- [meta] add `funding` field [`a0b32cf`](https://github.com/inspect-js/has-symbols/commit/a0b32cf68e803f963c1639b6d47b0a9d6440bab0)
+- [Dev Deps] update `safe-publish-latest` [`cb9f0a5`](https://github.com/inspect-js/has-symbols/commit/cb9f0a521a3a1790f1064d437edd33bb6c3d6af0)
+
+## v1.0.0 - 2016-09-19
+
+### Commits
+
+- Tests. [`ecb6eb9`](https://github.com/inspect-js/has-symbols/commit/ecb6eb934e4883137f3f93b965ba5e0a98df430d)
+- package.json [`88a337c`](https://github.com/inspect-js/has-symbols/commit/88a337cee0864a0da35f5d19e69ff0ef0150e46a)
+- Initial commit [`42e1e55`](https://github.com/inspect-js/has-symbols/commit/42e1e5502536a2b8ac529c9443984acd14836b1c)
+- Initial implementation. [`33f5cc6`](https://github.com/inspect-js/has-symbols/commit/33f5cc6cdff86e2194b081ee842bfdc63caf43fb)
+- read me [`01f1170`](https://github.com/inspect-js/has-symbols/commit/01f1170188ff7cb1558aa297f6ba5b516c6d7b0c)
diff --git a/backend/node_modules/has-symbols/LICENSE b/backend/node_modules/has-symbols/LICENSE
new file mode 100644
index 0000000..df31cbf
--- /dev/null
+++ b/backend/node_modules/has-symbols/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2016 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/has-symbols/README.md b/backend/node_modules/has-symbols/README.md
new file mode 100644
index 0000000..33905f0
--- /dev/null
+++ b/backend/node_modules/has-symbols/README.md
@@ -0,0 +1,46 @@
+# has-symbols <sup>[![Version Badge][2]][1]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![dependency status][5]][6]
+[![dev dependency status][7]][8]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][11]][1]
+
+Determine if the JS environment has Symbol support. Supports spec, or shams.
+
+## Example
+
+```js
+var hasSymbols = require('has-symbols');
+
+hasSymbols() === true; // if the environment has native Symbol support. Not polyfillable, not forgeable.
+
+var hasSymbolsKinda = require('has-symbols/shams');
+hasSymbolsKinda() === true; // if the environment has a Symbol sham that mostly follows the spec.
+```
+
+## Supported Symbol shams
+ - get-own-property-symbols [npm](https://www.npmjs.com/package/get-own-property-symbols) | [github](https://github.com/WebReflection/get-own-property-symbols)
+ - core-js [npm](https://www.npmjs.com/package/core-js) | [github](https://github.com/zloirock/core-js)
+
+## Tests
+Simply clone the repo, `npm install`, and run `npm test`
+
+[1]: https://npmjs.org/package/has-symbols
+[2]: https://versionbadg.es/inspect-js/has-symbols.svg
+[5]: https://david-dm.org/inspect-js/has-symbols.svg
+[6]: https://david-dm.org/inspect-js/has-symbols
+[7]: https://david-dm.org/inspect-js/has-symbols/dev-status.svg
+[8]: https://david-dm.org/inspect-js/has-symbols#info=devDependencies
+[11]: https://nodei.co/npm/has-symbols.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/has-symbols.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/has-symbols.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=has-symbols
+[codecov-image]: https://codecov.io/gh/inspect-js/has-symbols/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/inspect-js/has-symbols/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/inspect-js/has-symbols
+[actions-url]: https://github.com/inspect-js/has-symbols/actions
diff --git a/backend/node_modules/has-symbols/index.d.ts b/backend/node_modules/has-symbols/index.d.ts
new file mode 100644
index 0000000..9b98595
--- /dev/null
+++ b/backend/node_modules/has-symbols/index.d.ts
@@ -0,0 +1,3 @@
+declare function hasNativeSymbols(): boolean;
+
+export = hasNativeSymbols;
\ No newline at end of file
diff --git a/backend/node_modules/has-symbols/index.js b/backend/node_modules/has-symbols/index.js
new file mode 100644
index 0000000..fa65265
--- /dev/null
+++ b/backend/node_modules/has-symbols/index.js
@@ -0,0 +1,14 @@
+'use strict';
+
+var origSymbol = typeof Symbol !== 'undefined' && Symbol;
+var hasSymbolSham = require('./shams');
+
+/** @type {import('.')} */
+module.exports = function hasNativeSymbols() {
+	if (typeof origSymbol !== 'function') { return false; }
+	if (typeof Symbol !== 'function') { return false; }
+	if (typeof origSymbol('foo') !== 'symbol') { return false; }
+	if (typeof Symbol('bar') !== 'symbol') { return false; }
+
+	return hasSymbolSham();
+};
diff --git a/backend/node_modules/has-symbols/package.json b/backend/node_modules/has-symbols/package.json
new file mode 100644
index 0000000..d835e20
--- /dev/null
+++ b/backend/node_modules/has-symbols/package.json
@@ -0,0 +1,111 @@
+{
+	"name": "has-symbols",
+	"version": "1.1.0",
+	"description": "Determine if the JS environment has Symbol support. Supports spec, or shams.",
+	"main": "index.js",
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublishOnly": "safe-publish-latest",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"pretest": "npm run --silent lint",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@'>=10.2' audit --production",
+		"tests-only": "npm run test:stock && npm run test:shams",
+		"test:stock": "nyc node test",
+		"test:staging": "nyc node --harmony --es-staging test",
+		"test:shams": "npm run --silent test:shams:getownpropertysymbols && npm run --silent test:shams:corejs",
+		"test:shams:corejs": "nyc node test/shams/core-js.js",
+		"test:shams:getownpropertysymbols": "nyc node test/shams/get-own-property-symbols.js",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "tsc -p . && attw -P",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git://github.com/inspect-js/has-symbols.git"
+	},
+	"keywords": [
+		"Symbol",
+		"symbols",
+		"typeof",
+		"sham",
+		"polyfill",
+		"native",
+		"core-js",
+		"ES6"
+	],
+	"author": {
+		"name": "Jordan Harband",
+		"email": "ljharb@gmail.com",
+		"url": "http://ljharb.codes"
+	},
+	"contributors": [
+		{
+			"name": "Jordan Harband",
+			"email": "ljharb@gmail.com",
+			"url": "http://ljharb.codes"
+		}
+	],
+	"funding": {
+		"url": "https://github.com/sponsors/ljharb"
+	},
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/has-symbols/issues"
+	},
+	"homepage": "https://github.com/ljharb/has-symbols#readme",
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.17.0",
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.0",
+		"@types/core-js": "^2.5.8",
+		"@types/tape": "^5.6.5",
+		"auto-changelog": "^2.5.0",
+		"core-js": "^2.6.12",
+		"encoding": "^0.1.13",
+		"eslint": "=8.8.0",
+		"get-own-property-symbols": "^0.9.5",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"testling": {
+		"files": "test/index.js",
+		"browsers": [
+			"iexplore/6.0..latest",
+			"firefox/3.0..6.0",
+			"firefox/15.0..latest",
+			"firefox/nightly",
+			"chrome/4.0..10.0",
+			"chrome/20.0..latest",
+			"chrome/canary",
+			"opera/10.0..latest",
+			"opera/next",
+			"safari/4.0..latest",
+			"ipad/6.0..latest",
+			"iphone/6.0..latest",
+			"android-browser/4.2"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows",
+			"types"
+		]
+	}
+}
diff --git a/backend/node_modules/has-symbols/shams.d.ts b/backend/node_modules/has-symbols/shams.d.ts
new file mode 100644
index 0000000..8d0bf24
--- /dev/null
+++ b/backend/node_modules/has-symbols/shams.d.ts
@@ -0,0 +1,3 @@
+declare function hasSymbolShams(): boolean;
+
+export = hasSymbolShams;
\ No newline at end of file
diff --git a/backend/node_modules/has-symbols/shams.js b/backend/node_modules/has-symbols/shams.js
new file mode 100644
index 0000000..f97b474
--- /dev/null
+++ b/backend/node_modules/has-symbols/shams.js
@@ -0,0 +1,45 @@
+'use strict';
+
+/** @type {import('./shams')} */
+/* eslint complexity: [2, 18], max-statements: [2, 33] */
+module.exports = function hasSymbols() {
+	if (typeof Symbol !== 'function' || typeof Object.getOwnPropertySymbols !== 'function') { return false; }
+	if (typeof Symbol.iterator === 'symbol') { return true; }
+
+	/** @type {{ [k in symbol]?: unknown }} */
+	var obj = {};
+	var sym = Symbol('test');
+	var symObj = Object(sym);
+	if (typeof sym === 'string') { return false; }
+
+	if (Object.prototype.toString.call(sym) !== '[object Symbol]') { return false; }
+	if (Object.prototype.toString.call(symObj) !== '[object Symbol]') { return false; }
+
+	// temp disabled per https://github.com/ljharb/object.assign/issues/17
+	// if (sym instanceof Symbol) { return false; }
+	// temp disabled per https://github.com/WebReflection/get-own-property-symbols/issues/4
+	// if (!(symObj instanceof Symbol)) { return false; }
+
+	// if (typeof Symbol.prototype.toString !== 'function') { return false; }
+	// if (String(sym) !== Symbol.prototype.toString.call(sym)) { return false; }
+
+	var symVal = 42;
+	obj[sym] = symVal;
+	for (var _ in obj) { return false; } // eslint-disable-line no-restricted-syntax, no-unreachable-loop
+	if (typeof Object.keys === 'function' && Object.keys(obj).length !== 0) { return false; }
+
+	if (typeof Object.getOwnPropertyNames === 'function' && Object.getOwnPropertyNames(obj).length !== 0) { return false; }
+
+	var syms = Object.getOwnPropertySymbols(obj);
+	if (syms.length !== 1 || syms[0] !== sym) { return false; }
+
+	if (!Object.prototype.propertyIsEnumerable.call(obj, sym)) { return false; }
+
+	if (typeof Object.getOwnPropertyDescriptor === 'function') {
+		// eslint-disable-next-line no-extra-parens
+		var descriptor = /** @type {PropertyDescriptor} */ (Object.getOwnPropertyDescriptor(obj, sym));
+		if (descriptor.value !== symVal || descriptor.enumerable !== true) { return false; }
+	}
+
+	return true;
+};
diff --git a/backend/node_modules/has-symbols/test/index.js b/backend/node_modules/has-symbols/test/index.js
new file mode 100644
index 0000000..352129c
--- /dev/null
+++ b/backend/node_modules/has-symbols/test/index.js
@@ -0,0 +1,22 @@
+'use strict';
+
+var test = require('tape');
+var hasSymbols = require('../');
+var runSymbolTests = require('./tests');
+
+test('interface', function (t) {
+	t.equal(typeof hasSymbols, 'function', 'is a function');
+	t.equal(typeof hasSymbols(), 'boolean', 'returns a boolean');
+	t.end();
+});
+
+test('Symbols are supported', { skip: !hasSymbols() }, function (t) {
+	runSymbolTests(t);
+	t.end();
+});
+
+test('Symbols are not supported', { skip: hasSymbols() }, function (t) {
+	t.equal(typeof Symbol, 'undefined', 'global Symbol is undefined');
+	t.equal(typeof Object.getOwnPropertySymbols, 'undefined', 'Object.getOwnPropertySymbols does not exist');
+	t.end();
+});
diff --git a/backend/node_modules/has-symbols/test/shams/core-js.js b/backend/node_modules/has-symbols/test/shams/core-js.js
new file mode 100644
index 0000000..1a29024
--- /dev/null
+++ b/backend/node_modules/has-symbols/test/shams/core-js.js
@@ -0,0 +1,29 @@
+'use strict';
+
+var test = require('tape');
+
+if (typeof Symbol === 'function' && typeof Symbol() === 'symbol') {
+	test('has native Symbol support', function (t) {
+		t.equal(typeof Symbol, 'function');
+		t.equal(typeof Symbol(), 'symbol');
+		t.end();
+	});
+	// @ts-expect-error TS is stupid and doesn't know about top level return
+	return;
+}
+
+var hasSymbols = require('../../shams');
+
+test('polyfilled Symbols', function (t) {
+	/* eslint-disable global-require */
+	t.equal(hasSymbols(), false, 'hasSymbols is false before polyfilling');
+	require('core-js/fn/symbol');
+	require('core-js/fn/symbol/to-string-tag');
+
+	require('../tests')(t);
+
+	var hasSymbolsAfter = hasSymbols();
+	t.equal(hasSymbolsAfter, true, 'hasSymbols is true after polyfilling');
+	/* eslint-enable global-require */
+	t.end();
+});
diff --git a/backend/node_modules/has-symbols/test/shams/get-own-property-symbols.js b/backend/node_modules/has-symbols/test/shams/get-own-property-symbols.js
new file mode 100644
index 0000000..e0296f8
--- /dev/null
+++ b/backend/node_modules/has-symbols/test/shams/get-own-property-symbols.js
@@ -0,0 +1,29 @@
+'use strict';
+
+var test = require('tape');
+
+if (typeof Symbol === 'function' && typeof Symbol() === 'symbol') {
+	test('has native Symbol support', function (t) {
+		t.equal(typeof Symbol, 'function');
+		t.equal(typeof Symbol(), 'symbol');
+		t.end();
+	});
+	// @ts-expect-error TS is stupid and doesn't know about top level return
+	return;
+}
+
+var hasSymbols = require('../../shams');
+
+test('polyfilled Symbols', function (t) {
+	/* eslint-disable global-require */
+	t.equal(hasSymbols(), false, 'hasSymbols is false before polyfilling');
+
+	require('get-own-property-symbols');
+
+	require('../tests')(t);
+
+	var hasSymbolsAfter = hasSymbols();
+	t.equal(hasSymbolsAfter, true, 'hasSymbols is true after polyfilling');
+	/* eslint-enable global-require */
+	t.end();
+});
diff --git a/backend/node_modules/has-symbols/test/tests.js b/backend/node_modules/has-symbols/test/tests.js
new file mode 100644
index 0000000..66a2cb8
--- /dev/null
+++ b/backend/node_modules/has-symbols/test/tests.js
@@ -0,0 +1,58 @@
+'use strict';
+
+/** @type {(t: import('tape').Test) => false | void} */
+// eslint-disable-next-line consistent-return
+module.exports = function runSymbolTests(t) {
+	t.equal(typeof Symbol, 'function', 'global Symbol is a function');
+
+	if (typeof Symbol !== 'function') { return false; }
+
+	t.notEqual(Symbol(), Symbol(), 'two symbols are not equal');
+
+	/*
+	t.equal(
+		Symbol.prototype.toString.call(Symbol('foo')),
+		Symbol.prototype.toString.call(Symbol('foo')),
+		'two symbols with the same description stringify the same'
+	);
+	*/
+
+	/*
+	var foo = Symbol('foo');
+
+	t.notEqual(
+		String(foo),
+		String(Symbol('bar')),
+		'two symbols with different descriptions do not stringify the same'
+	);
+	*/
+
+	t.equal(typeof Symbol.prototype.toString, 'function', 'Symbol#toString is a function');
+	// t.equal(String(foo), Symbol.prototype.toString.call(foo), 'Symbol#toString equals String of the same symbol');
+
+	t.equal(typeof Object.getOwnPropertySymbols, 'function', 'Object.getOwnPropertySymbols is a function');
+
+	/** @type {{ [k in symbol]?: unknown }} */
+	var obj = {};
+	var sym = Symbol('test');
+	var symObj = Object(sym);
+	t.notEqual(typeof sym, 'string', 'Symbol is not a string');
+	t.equal(Object.prototype.toString.call(sym), '[object Symbol]', 'symbol primitive Object#toStrings properly');
+	t.equal(Object.prototype.toString.call(symObj), '[object Symbol]', 'symbol primitive Object#toStrings properly');
+
+	var symVal = 42;
+	obj[sym] = symVal;
+	// eslint-disable-next-line no-restricted-syntax, no-unused-vars
+	for (var _ in obj) { t.fail('symbol property key was found in for..in of object'); }
+
+	t.deepEqual(Object.keys(obj), [], 'no enumerable own keys on symbol-valued object');
+	t.deepEqual(Object.getOwnPropertyNames(obj), [], 'no own names on symbol-valued object');
+	t.deepEqual(Object.getOwnPropertySymbols(obj), [sym], 'one own symbol on symbol-valued object');
+	t.equal(Object.prototype.propertyIsEnumerable.call(obj, sym), true, 'symbol is enumerable');
+	t.deepEqual(Object.getOwnPropertyDescriptor(obj, sym), {
+		configurable: true,
+		enumerable: true,
+		value: 42,
+		writable: true
+	}, 'property descriptor is correct');
+};
diff --git a/backend/node_modules/has-symbols/tsconfig.json b/backend/node_modules/has-symbols/tsconfig.json
new file mode 100644
index 0000000..ba99af4
--- /dev/null
+++ b/backend/node_modules/has-symbols/tsconfig.json
@@ -0,0 +1,10 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		"target": "ES2021",
+		"maxNodeModuleJsDepth": 0,
+	},
+	"exclude": [
+		"coverage"
+	]
+}
diff --git a/backend/node_modules/hasown/.eslintrc b/backend/node_modules/hasown/.eslintrc
new file mode 100644
index 0000000..3b5d9e9
--- /dev/null
+++ b/backend/node_modules/hasown/.eslintrc
@@ -0,0 +1,5 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+}
diff --git a/backend/node_modules/hasown/.github/FUNDING.yml b/backend/node_modules/hasown/.github/FUNDING.yml
new file mode 100644
index 0000000..d68c8b7
--- /dev/null
+++ b/backend/node_modules/hasown/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/hasown
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with a single custom sponsorship URL
diff --git a/backend/node_modules/hasown/.nycrc b/backend/node_modules/hasown/.nycrc
new file mode 100644
index 0000000..1826526
--- /dev/null
+++ b/backend/node_modules/hasown/.nycrc
@@ -0,0 +1,13 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"lines": 86,
+	"statements": 85.93,
+	"functions": 82.43,
+	"branches": 76.06,
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/hasown/CHANGELOG.md b/backend/node_modules/hasown/CHANGELOG.md
new file mode 100644
index 0000000..2b0a980
--- /dev/null
+++ b/backend/node_modules/hasown/CHANGELOG.md
@@ -0,0 +1,40 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v2.0.2](https://github.com/inspect-js/hasOwn/compare/v2.0.1...v2.0.2) - 2024-03-10
+
+### Commits
+
+- [types] use shared config [`68e9d4d`](https://github.com/inspect-js/hasOwn/commit/68e9d4dab6facb4f05f02c6baea94a3f2a4e44b2)
+- [actions] remove redundant finisher; use reusable workflow [`241a68e`](https://github.com/inspect-js/hasOwn/commit/241a68e13ea1fe52bec5ba7f74144befc31fae7b)
+- [Tests] increase coverage [`4125c0d`](https://github.com/inspect-js/hasOwn/commit/4125c0d6121db56ae30e38346dfb0c000b04f0a7)
+- [Tests] skip `npm ls` in old node due to TS [`01b9282`](https://github.com/inspect-js/hasOwn/commit/01b92822f9971dea031eafdd14767df41d61c202)
+- [types] improve predicate type [`d340f85`](https://github.com/inspect-js/hasOwn/commit/d340f85ce02e286ef61096cbbb6697081d40a12b)
+- [Dev Deps] update `tape` [`70089fc`](https://github.com/inspect-js/hasOwn/commit/70089fcf544e64acc024cbe60f5a9b00acad86de)
+- [Tests] use `@arethetypeswrong/cli` [`50b272c`](https://github.com/inspect-js/hasOwn/commit/50b272c829f40d053a3dd91c9796e0ac0b2af084)
+
+## [v2.0.1](https://github.com/inspect-js/hasOwn/compare/v2.0.0...v2.0.1) - 2024-02-10
+
+### Commits
+
+- [types] use a handwritten d.ts file; fix exported type [`012b989`](https://github.com/inspect-js/hasOwn/commit/012b9898ccf91dc441e2ebf594ff70270a5fda58)
+- [Dev Deps] update `@types/function-bind`, `@types/mock-property`, `@types/tape`, `aud`, `mock-property`, `npmignore`, `tape`, `typescript` [`977a56f`](https://github.com/inspect-js/hasOwn/commit/977a56f51a1f8b20566f3c471612137894644025)
+- [meta] add `sideEffects` flag [`3a60b7b`](https://github.com/inspect-js/hasOwn/commit/3a60b7bf42fccd8c605e5f145a6fcc83b13cb46f)
+
+## [v2.0.0](https://github.com/inspect-js/hasOwn/compare/v1.0.1...v2.0.0) - 2023-10-19
+
+### Commits
+
+- revamped implementation, tests, readme [`72bf8b3`](https://github.com/inspect-js/hasOwn/commit/72bf8b338e77a638f0a290c63ffaed18339c36b4)
+- [meta] revamp package.json [`079775f`](https://github.com/inspect-js/hasOwn/commit/079775fb1ec72c1c6334069593617a0be3847458)
+- Only apps should have lockfiles [`6640e23`](https://github.com/inspect-js/hasOwn/commit/6640e233d1bb8b65260880f90787637db157d215)
+
+## v1.0.1 - 2023-10-10
+
+### Commits
+
+- Initial commit [`8dbfde6`](https://github.com/inspect-js/hasOwn/commit/8dbfde6e8fb0ebb076fab38d138f2984eb340a62)
diff --git a/backend/node_modules/hasown/LICENSE b/backend/node_modules/hasown/LICENSE
new file mode 100644
index 0000000..0314929
--- /dev/null
+++ b/backend/node_modules/hasown/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) Jordan Harband and contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/hasown/README.md b/backend/node_modules/hasown/README.md
new file mode 100644
index 0000000..f759b8a
--- /dev/null
+++ b/backend/node_modules/hasown/README.md
@@ -0,0 +1,40 @@
+# hasown <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+A robust, ES3 compatible, "has own property" predicate.
+
+## Example
+
+```js
+const assert = require('assert');
+const hasOwn = require('hasown');
+
+assert.equal(hasOwn({}, 'toString'), false);
+assert.equal(hasOwn([], 'length'), true);
+assert.equal(hasOwn({ a: 42 }, 'a'), true);
+```
+
+## Tests
+Simply clone the repo, `npm install`, and run `npm test`
+
+[package-url]: https://npmjs.org/package/hasown
+[npm-version-svg]: https://versionbadg.es/inspect-js/hasown.svg
+[deps-svg]: https://david-dm.org/inspect-js/hasOwn.svg
+[deps-url]: https://david-dm.org/inspect-js/hasOwn
+[dev-deps-svg]: https://david-dm.org/inspect-js/hasOwn/dev-status.svg
+[dev-deps-url]: https://david-dm.org/inspect-js/hasOwn#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/hasown.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/hasown.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/hasown.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=hasown
+[codecov-image]: https://codecov.io/gh/inspect-js/hasOwn/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/inspect-js/hasOwn/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/inspect-js/hasOwn
+[actions-url]: https://github.com/inspect-js/hasOwn/actions
diff --git a/backend/node_modules/hasown/index.d.ts b/backend/node_modules/hasown/index.d.ts
new file mode 100644
index 0000000..aafdf3b
--- /dev/null
+++ b/backend/node_modules/hasown/index.d.ts
@@ -0,0 +1,3 @@
+declare function hasOwn<O, K extends PropertyKey, V = unknown>(o: O, p: K): o is O & Record<K, V>;
+
+export = hasOwn;
diff --git a/backend/node_modules/hasown/index.js b/backend/node_modules/hasown/index.js
new file mode 100644
index 0000000..34e6059
--- /dev/null
+++ b/backend/node_modules/hasown/index.js
@@ -0,0 +1,8 @@
+'use strict';
+
+var call = Function.prototype.call;
+var $hasOwn = Object.prototype.hasOwnProperty;
+var bind = require('function-bind');
+
+/** @type {import('.')} */
+module.exports = bind.call(call, $hasOwn);
diff --git a/backend/node_modules/hasown/package.json b/backend/node_modules/hasown/package.json
new file mode 100644
index 0000000..8502e13
--- /dev/null
+++ b/backend/node_modules/hasown/package.json
@@ -0,0 +1,92 @@
+{
+	"name": "hasown",
+	"version": "2.0.2",
+	"description": "A robust, ES3 compatible, \"has own property\" predicate.",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./package.json": "./package.json"
+	},
+	"types": "index.d.ts",
+	"sideEffects": false,
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prepublishOnly": "safe-publish-latest",
+		"prelint": "evalmd README.md",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "npm run tsc",
+		"pretest": "npm run lint",
+		"tsc": "tsc -p .",
+		"posttsc": "attw -P",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"test": "npm run tests-only",
+		"posttest": "aud --production",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/inspect-js/hasOwn.git"
+	},
+	"keywords": [
+		"has",
+		"hasOwnProperty",
+		"hasOwn",
+		"has-own",
+		"own",
+		"has",
+		"property",
+		"in",
+		"javascript",
+		"ecmascript"
+	],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/inspect-js/hasOwn/issues"
+	},
+	"homepage": "https://github.com/inspect-js/hasOwn#readme",
+	"dependencies": {
+		"function-bind": "^1.1.2"
+	},
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.15.1",
+		"@ljharb/eslint-config": "^21.1.0",
+		"@ljharb/tsconfig": "^0.2.0",
+		"@types/function-bind": "^1.1.10",
+		"@types/mock-property": "^1.0.2",
+		"@types/tape": "^5.6.4",
+		"aud": "^2.0.4",
+		"auto-changelog": "^2.4.0",
+		"eslint": "=8.8.0",
+		"evalmd": "^0.0.19",
+		"in-publish": "^2.0.1",
+		"mock-property": "^1.0.3",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.7.5",
+		"typescript": "next"
+	},
+	"engines": {
+		"node": ">= 0.4"
+	},
+	"testling": {
+		"files": "test/index.js"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows",
+			"test"
+		]
+	}
+}
diff --git a/backend/node_modules/hasown/tsconfig.json b/backend/node_modules/hasown/tsconfig.json
new file mode 100644
index 0000000..0930c56
--- /dev/null
+++ b/backend/node_modules/hasown/tsconfig.json
@@ -0,0 +1,6 @@
+{
+  "extends": "@ljharb/tsconfig",
+  "exclude": [
+    "coverage",
+  ],
+}
diff --git a/backend/node_modules/http-errors/HISTORY.md b/backend/node_modules/http-errors/HISTORY.md
new file mode 100644
index 0000000..7228684
--- /dev/null
+++ b/backend/node_modules/http-errors/HISTORY.md
@@ -0,0 +1,180 @@
+2.0.0 / 2021-12-17
+==================
+
+  * Drop support for Node.js 0.6
+  * Remove `I'mateapot` export; use `ImATeapot` instead
+  * Remove support for status being non-first argument
+  * Rename `UnorderedCollection` constructor to `TooEarly`
+  * deps: depd@2.0.0
+    - Replace internal `eval` usage with `Function` constructor
+    - Use instance methods on `process` to check for listeners
+  * deps: statuses@2.0.1
+    - Fix messaging casing of `418 I'm a Teapot`
+    - Remove code 306
+    - Rename `425 Unordered Collection` to standard `425 Too Early`
+
+2021-11-14 / 1.8.1
+==================
+
+  * deps: toidentifier@1.0.1
+
+2020-06-29 / 1.8.0
+==================
+
+  * Add `isHttpError` export to determine if value is an HTTP error
+  * deps: setprototypeof@1.2.0
+
+2019-06-24 / 1.7.3
+==================
+
+  * deps: inherits@2.0.4
+
+2019-02-18 / 1.7.2
+==================
+
+  * deps: setprototypeof@1.1.1
+
+2018-09-08 / 1.7.1
+==================
+
+  * Fix error creating objects in some environments
+
+2018-07-30 / 1.7.0
+==================
+
+  * Set constructor name when possible
+  * Use `toidentifier` module to make class names
+  * deps: statuses@'>= 1.5.0 < 2'
+
+2018-03-29 / 1.6.3
+==================
+
+  * deps: depd@~1.1.2
+    - perf: remove argument reassignment
+  * deps: setprototypeof@1.1.0
+  * deps: statuses@'>= 1.4.0 < 2'
+
+2017-08-04 / 1.6.2
+==================
+
+  * deps: depd@1.1.1
+    - Remove unnecessary `Buffer` loading
+
+2017-02-20 / 1.6.1
+==================
+
+  * deps: setprototypeof@1.0.3
+    - Fix shim for old browsers
+
+2017-02-14 / 1.6.0
+==================
+
+  * Accept custom 4xx and 5xx status codes in factory
+  * Add deprecation message to `"I'mateapot"` export
+  * Deprecate passing status code as anything except first argument in factory
+  * Deprecate using non-error status codes
+  * Make `message` property enumerable for `HttpError`s
+
+2016-11-16 / 1.5.1
+==================
+
+  * deps: inherits@2.0.3
+    - Fix issue loading in browser
+  * deps: setprototypeof@1.0.2
+  * deps: statuses@'>= 1.3.1 < 2'
+
+2016-05-18 / 1.5.0
+==================
+
+  * Support new code `421 Misdirected Request`
+  * Use `setprototypeof` module to replace `__proto__` setting
+  * deps: statuses@'>= 1.3.0 < 2'
+    - Add `421 Misdirected Request`
+    - perf: enable strict mode
+  * perf: enable strict mode
+
+2016-01-28 / 1.4.0
+==================
+
+  * Add `HttpError` export, for `err instanceof createError.HttpError`
+  * deps: inherits@2.0.1
+  * deps: statuses@'>= 1.2.1 < 2'
+    - Fix message for status 451
+    - Remove incorrect nginx status code
+
+2015-02-02 / 1.3.1
+==================
+
+  * Fix regression where status can be overwritten in `createError` `props`
+
+2015-02-01 / 1.3.0
+==================
+
+  * Construct errors using defined constructors from `createError`
+  * Fix error names that are not identifiers
+    - `createError["I'mateapot"]` is now `createError.ImATeapot`
+  * Set a meaningful `name` property on constructed errors
+
+2014-12-09 / 1.2.8
+==================
+
+  * Fix stack trace from exported function
+  * Remove `arguments.callee` usage
+
+2014-10-14 / 1.2.7
+==================
+
+  * Remove duplicate line
+
+2014-10-02 / 1.2.6
+==================
+
+  * Fix `expose` to be `true` for `ClientError` constructor
+
+2014-09-28 / 1.2.5
+==================
+
+  * deps: statuses@1
+
+2014-09-21 / 1.2.4
+==================
+
+  * Fix dependency version to work with old `npm`s
+
+2014-09-21 / 1.2.3
+==================
+
+  * deps: statuses@~1.1.0
+
+2014-09-21 / 1.2.2
+==================
+
+  * Fix publish error
+
+2014-09-21 / 1.2.1
+==================
+
+  * Support Node.js 0.6
+  * Use `inherits` instead of `util`
+
+2014-09-09 / 1.2.0
+==================
+
+  * Fix the way inheriting functions
+  * Support `expose` being provided in properties argument
+
+2014-09-08 / 1.1.0
+==================
+
+  * Default status to 500
+  * Support provided `error` to extend
+
+2014-09-08 / 1.0.1
+==================
+
+  * Fix accepting string message
+
+2014-09-08 / 1.0.0
+==================
+
+  * Initial release
diff --git a/backend/node_modules/http-errors/LICENSE b/backend/node_modules/http-errors/LICENSE
new file mode 100644
index 0000000..82af4df
--- /dev/null
+++ b/backend/node_modules/http-errors/LICENSE
@@ -0,0 +1,23 @@
+
+The MIT License (MIT)
+
+Copyright (c) 2014 Jonathan Ong me@jongleberry.com
+Copyright (c) 2016 Douglas Christopher Wilson doug@somethingdoug.com
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/http-errors/README.md b/backend/node_modules/http-errors/README.md
new file mode 100644
index 0000000..a8b7330
--- /dev/null
+++ b/backend/node_modules/http-errors/README.md
@@ -0,0 +1,169 @@
+# http-errors
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][node-url]
+[![Node.js Version][node-image]][node-url]
+[![Build Status][ci-image]][ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Create HTTP errors for Express, Koa, Connect, etc. with ease.
+
+## Install
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```console
+$ npm install http-errors
+```
+
+## Example
+
+```js
+var createError = require('http-errors')
+var express = require('express')
+var app = express()
+
+app.use(function (req, res, next) {
+  if (!req.user) return next(createError(401, 'Please login to view this page.'))
+  next()
+})
+```
+
+## API
+
+This is the current API, currently extracted from Koa and subject to change.
+
+### Error Properties
+
+- `expose` - can be used to signal if `message` should be sent to the client,
+  defaulting to `false` when `status` >= 500
+- `headers` - can be an object of header names to values to be sent to the
+  client, defaulting to `undefined`. When defined, the key names should all
+  be lower-cased
+- `message` - the traditional error message, which should be kept short and all
+  single line
+- `status` - the status code of the error, mirroring `statusCode` for general
+  compatibility
+- `statusCode` - the status code of the error, defaulting to `500`
+
+### createError([status], [message], [properties])
+
+Create a new error object with the given message `msg`.
+The error object inherits from `createError.HttpError`.
+
+```js
+var err = createError(404, 'This video does not exist!')
+```
+
+- `status: 500` - the status code as a number
+- `message` - the message of the error, defaulting to node's text for that status code.
+- `properties` - custom properties to attach to the object
+
+### createError([status], [error], [properties])
+
+Extend the given `error` object with `createError.HttpError`
+properties. This will not alter the inheritance of the given
+`error` object, and the modified `error` object is the
+return value.
+
+<!-- eslint-disable no-redeclare -->
+
+```js
+fs.readFile('foo.txt', function (err, buf) {
+  if (err) {
+    if (err.code === 'ENOENT') {
+      var httpError = createError(404, err, { expose: false })
+    } else {
+      var httpError = createError(500, err)
+    }
+  }
+})
+```
+
+- `status` - the status code as a number
+- `error` - the error object to extend
+- `properties` - custom properties to attach to the object
+
+### createError.isHttpError(val)
+
+Determine if the provided `val` is an `HttpError`. This will return `true`
+if the error inherits from the `HttpError` constructor of this module or
+matches the "duck type" for an error this module creates. All outputs from
+the `createError` factory will return `true` for this function, including
+if an non-`HttpError` was passed into the factory.
+
+### new createError\[code || name\](\[msg]\))
+
+Create a new error object with the given message `msg`.
+The error object inherits from `createError.HttpError`.
+
+```js
+var err = new createError.NotFound()
+```
+
+- `code` - the status code as a number
+- `name` - the name of the error as a "bumpy case", i.e. `NotFound` or `InternalServerError`.
+
+#### List of all constructors
+
+|Status Code|Constructor Name             |
+|-----------|-----------------------------|
+|400        |BadRequest                   |
+|401        |Unauthorized                 |
+|402        |PaymentRequired              |
+|403        |Forbidden                    |
+|404        |NotFound                     |
+|405        |MethodNotAllowed             |
+|406        |NotAcceptable                |
+|407        |ProxyAuthenticationRequired  |
+|408        |RequestTimeout               |
+|409        |Conflict                     |
+|410        |Gone                         |
+|411        |LengthRequired               |
+|412        |PreconditionFailed           |
+|413        |PayloadTooLarge              |
+|414        |URITooLong                   |
+|415        |UnsupportedMediaType         |
+|416        |RangeNotSatisfiable          |
+|417        |ExpectationFailed            |
+|418        |ImATeapot                    |
+|421        |MisdirectedRequest           |
+|422        |UnprocessableEntity          |
+|423        |Locked                       |
+|424        |FailedDependency             |
+|425        |TooEarly                     |
+|426        |UpgradeRequired              |
+|428        |PreconditionRequired         |
+|429        |TooManyRequests              |
+|431        |RequestHeaderFieldsTooLarge  |
+|451        |UnavailableForLegalReasons   |
+|500        |InternalServerError          |
+|501        |NotImplemented               |
+|502        |BadGateway                   |
+|503        |ServiceUnavailable           |
+|504        |GatewayTimeout               |
+|505        |HTTPVersionNotSupported      |
+|506        |VariantAlsoNegotiates        |
+|507        |InsufficientStorage          |
+|508        |LoopDetected                 |
+|509        |BandwidthLimitExceeded       |
+|510        |NotExtended                  |
+|511        |NetworkAuthenticationRequired|
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://badgen.net/github/checks/jshttp/http-errors/master?label=ci
+[ci-url]: https://github.com/jshttp/http-errors/actions?query=workflow%3Aci
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/http-errors/master
+[coveralls-url]: https://coveralls.io/r/jshttp/http-errors?branch=master
+[node-image]: https://badgen.net/npm/node/http-errors
+[node-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/http-errors
+[npm-url]: https://npmjs.org/package/http-errors
+[npm-version-image]: https://badgen.net/npm/v/http-errors
+[travis-image]: https://badgen.net/travis/jshttp/http-errors/master
+[travis-url]: https://travis-ci.org/jshttp/http-errors
diff --git a/backend/node_modules/http-errors/index.js b/backend/node_modules/http-errors/index.js
new file mode 100644
index 0000000..c425f1e
--- /dev/null
+++ b/backend/node_modules/http-errors/index.js
@@ -0,0 +1,289 @@
+/*!
+ * http-errors
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2016 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var deprecate = require('depd')('http-errors')
+var setPrototypeOf = require('setprototypeof')
+var statuses = require('statuses')
+var inherits = require('inherits')
+var toIdentifier = require('toidentifier')
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = createError
+module.exports.HttpError = createHttpErrorConstructor()
+module.exports.isHttpError = createIsHttpErrorFunction(module.exports.HttpError)
+
+// Populate exports for all constructors
+populateConstructorExports(module.exports, statuses.codes, module.exports.HttpError)
+
+/**
+ * Get the code class of a status code.
+ * @private
+ */
+
+function codeClass (status) {
+  return Number(String(status).charAt(0) + '00')
+}
+
+/**
+ * Create a new HTTP Error.
+ *
+ * @returns {Error}
+ * @public
+ */
+
+function createError () {
+  // so much arity going on ~_~
+  var err
+  var msg
+  var status = 500
+  var props = {}
+  for (var i = 0; i < arguments.length; i++) {
+    var arg = arguments[i]
+    var type = typeof arg
+    if (type === 'object' && arg instanceof Error) {
+      err = arg
+      status = err.status || err.statusCode || status
+    } else if (type === 'number' && i === 0) {
+      status = arg
+    } else if (type === 'string') {
+      msg = arg
+    } else if (type === 'object') {
+      props = arg
+    } else {
+      throw new TypeError('argument #' + (i + 1) + ' unsupported type ' + type)
+    }
+  }
+
+  if (typeof status === 'number' && (status < 400 || status >= 600)) {
+    deprecate('non-error status code; use only 4xx or 5xx status codes')
+  }
+
+  if (typeof status !== 'number' ||
+    (!statuses.message[status] && (status < 400 || status >= 600))) {
+    status = 500
+  }
+
+  // constructor
+  var HttpError = createError[status] || createError[codeClass(status)]
+
+  if (!err) {
+    // create error
+    err = HttpError
+      ? new HttpError(msg)
+      : new Error(msg || statuses.message[status])
+    Error.captureStackTrace(err, createError)
+  }
+
+  if (!HttpError || !(err instanceof HttpError) || err.status !== status) {
+    // add properties to generic error
+    err.expose = status < 500
+    err.status = err.statusCode = status
+  }
+
+  for (var key in props) {
+    if (key !== 'status' && key !== 'statusCode') {
+      err[key] = props[key]
+    }
+  }
+
+  return err
+}
+
+/**
+ * Create HTTP error abstract base class.
+ * @private
+ */
+
+function createHttpErrorConstructor () {
+  function HttpError () {
+    throw new TypeError('cannot construct abstract class')
+  }
+
+  inherits(HttpError, Error)
+
+  return HttpError
+}
+
+/**
+ * Create a constructor for a client error.
+ * @private
+ */
+
+function createClientErrorConstructor (HttpError, name, code) {
+  var className = toClassName(name)
+
+  function ClientError (message) {
+    // create the error object
+    var msg = message != null ? message : statuses.message[code]
+    var err = new Error(msg)
+
+    // capture a stack trace to the construction point
+    Error.captureStackTrace(err, ClientError)
+
+    // adjust the [[Prototype]]
+    setPrototypeOf(err, ClientError.prototype)
+
+    // redefine the error message
+    Object.defineProperty(err, 'message', {
+      enumerable: true,
+      configurable: true,
+      value: msg,
+      writable: true
+    })
+
+    // redefine the error name
+    Object.defineProperty(err, 'name', {
+      enumerable: false,
+      configurable: true,
+      value: className,
+      writable: true
+    })
+
+    return err
+  }
+
+  inherits(ClientError, HttpError)
+  nameFunc(ClientError, className)
+
+  ClientError.prototype.status = code
+  ClientError.prototype.statusCode = code
+  ClientError.prototype.expose = true
+
+  return ClientError
+}
+
+/**
+ * Create function to test is a value is a HttpError.
+ * @private
+ */
+
+function createIsHttpErrorFunction (HttpError) {
+  return function isHttpError (val) {
+    if (!val || typeof val !== 'object') {
+      return false
+    }
+
+    if (val instanceof HttpError) {
+      return true
+    }
+
+    return val instanceof Error &&
+      typeof val.expose === 'boolean' &&
+      typeof val.statusCode === 'number' && val.status === val.statusCode
+  }
+}
+
+/**
+ * Create a constructor for a server error.
+ * @private
+ */
+
+function createServerErrorConstructor (HttpError, name, code) {
+  var className = toClassName(name)
+
+  function ServerError (message) {
+    // create the error object
+    var msg = message != null ? message : statuses.message[code]
+    var err = new Error(msg)
+
+    // capture a stack trace to the construction point
+    Error.captureStackTrace(err, ServerError)
+
+    // adjust the [[Prototype]]
+    setPrototypeOf(err, ServerError.prototype)
+
+    // redefine the error message
+    Object.defineProperty(err, 'message', {
+      enumerable: true,
+      configurable: true,
+      value: msg,
+      writable: true
+    })
+
+    // redefine the error name
+    Object.defineProperty(err, 'name', {
+      enumerable: false,
+      configurable: true,
+      value: className,
+      writable: true
+    })
+
+    return err
+  }
+
+  inherits(ServerError, HttpError)
+  nameFunc(ServerError, className)
+
+  ServerError.prototype.status = code
+  ServerError.prototype.statusCode = code
+  ServerError.prototype.expose = false
+
+  return ServerError
+}
+
+/**
+ * Set the name of a function, if possible.
+ * @private
+ */
+
+function nameFunc (func, name) {
+  var desc = Object.getOwnPropertyDescriptor(func, 'name')
+
+  if (desc && desc.configurable) {
+    desc.value = name
+    Object.defineProperty(func, 'name', desc)
+  }
+}
+
+/**
+ * Populate the exports object with constructors for every error class.
+ * @private
+ */
+
+function populateConstructorExports (exports, codes, HttpError) {
+  codes.forEach(function forEachCode (code) {
+    var CodeError
+    var name = toIdentifier(statuses.message[code])
+
+    switch (codeClass(code)) {
+      case 400:
+        CodeError = createClientErrorConstructor(HttpError, name, code)
+        break
+      case 500:
+        CodeError = createServerErrorConstructor(HttpError, name, code)
+        break
+    }
+
+    if (CodeError) {
+      // export the constructor
+      exports[code] = CodeError
+      exports[name] = CodeError
+    }
+  })
+}
+
+/**
+ * Get a class name from a name identifier.
+ * @private
+ */
+
+function toClassName (name) {
+  return name.substr(-5) !== 'Error'
+    ? name + 'Error'
+    : name
+}
diff --git a/backend/node_modules/http-errors/package.json b/backend/node_modules/http-errors/package.json
new file mode 100644
index 0000000..4cb6d7e
--- /dev/null
+++ b/backend/node_modules/http-errors/package.json
@@ -0,0 +1,50 @@
+{
+  "name": "http-errors",
+  "description": "Create HTTP error objects",
+  "version": "2.0.0",
+  "author": "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)",
+  "contributors": [
+    "Alan Plum <me@pluma.io>",
+    "Douglas Christopher Wilson <doug@somethingdoug.com>"
+  ],
+  "license": "MIT",
+  "repository": "jshttp/http-errors",
+  "dependencies": {
+    "depd": "2.0.0",
+    "inherits": "2.0.4",
+    "setprototypeof": "1.2.0",
+    "statuses": "2.0.1",
+    "toidentifier": "1.0.1"
+  },
+  "devDependencies": {
+    "eslint": "7.32.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.25.3",
+    "eslint-plugin-markdown": "2.2.1",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "5.2.0",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "9.1.3",
+    "nyc": "15.1.0"
+  },
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "lint": "eslint . && node ./scripts/lint-readme-list.js",
+    "test": "mocha --reporter spec --bail",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "version": "node scripts/version-history.js && git add HISTORY.md"
+  },
+  "keywords": [
+    "http",
+    "error"
+  ],
+  "files": [
+    "index.js",
+    "HISTORY.md",
+    "LICENSE",
+    "README.md"
+  ]
+}
diff --git a/backend/node_modules/iconv-lite/Changelog.md b/backend/node_modules/iconv-lite/Changelog.md
new file mode 100644
index 0000000..f252313
--- /dev/null
+++ b/backend/node_modules/iconv-lite/Changelog.md
@@ -0,0 +1,162 @@
+# 0.4.24 / 2018-08-22
+
+  * Added MIK encoding (#196, by @Ivan-Kalatchev)
+
+
+# 0.4.23 / 2018-05-07
+
+  * Fix deprecation warning in Node v10 due to the last usage of `new Buffer` (#185, by @felixbuenemann)
+  * Switched from NodeBuffer to Buffer in typings (#155 by @felixfbecker, #186 by @larssn)
+
+
+# 0.4.22 / 2018-05-05
+
+  * Use older semver style for dependencies to be compatible with Node version 0.10 (#182, by @dougwilson)
+  * Fix tests to accomodate fixes in Node v10 (#182, by @dougwilson)
+
+
+# 0.4.21 / 2018-04-06
+
+  * Fix encoding canonicalization (#156)
+  * Fix the paths in the "browser" field in package.json (#174 by @LMLB)
+  * Removed "contributors" section in package.json - see Git history instead.
+
+
+# 0.4.20 / 2018-04-06
+
+  * Updated `new Buffer()` usages with recommended replacements as it's being deprecated in Node v10 (#176, #178 by @ChALkeR)
+
+
+# 0.4.19 / 2017-09-09
+
+  * Fixed iso8859-1 codec regression in handling untranslatable characters (#162, caused by #147)
+  * Re-generated windows1255 codec, because it was updated in iconv project
+  * Fixed grammar in error message when iconv-lite is loaded with encoding other than utf8
+
+
+# 0.4.18 / 2017-06-13
+
+  * Fixed CESU-8 regression in Node v8.
+
+
+# 0.4.17 / 2017-04-22
+
+ * Updated typescript definition file to support Angular 2 AoT mode (#153 by @larssn)
+
+
+# 0.4.16 / 2017-04-22
+
+ * Added support for React Native (#150)
+ * Changed iso8859-1 encoding to usine internal 'binary' encoding, as it's the same thing (#147 by @mscdex)
+ * Fixed typo in Readme (#138 by @jiangzhuo)
+ * Fixed build for Node v6.10+ by making correct version comparison
+ * Added a warning if iconv-lite is loaded not as utf-8 (see #142)
+
+
+# 0.4.15 / 2016-11-21
+
+ * Fixed typescript type definition (#137)
+
+
+# 0.4.14 / 2016-11-20
+
+ * Preparation for v1.0
+ * Added Node v6 and latest Node versions to Travis CI test rig
+ * Deprecated Node v0.8 support
+ * Typescript typings (@larssn)
+ * Fix encoding of Euro character in GB 18030 (inspired by @lygstate)
+ * Add ms prefix to dbcs windows encodings (@rokoroku)
+
+
+# 0.4.13 / 2015-10-01
+
+ * Fix silly mistake in deprecation notice.
+
+
+# 0.4.12 / 2015-09-26
+
+ * Node v4 support:
+   * Added CESU-8 decoding (#106)
+   * Added deprecation notice for `extendNodeEncodings`
+   * Added Travis tests for Node v4 and io.js latest (#105 by @Mithgol)
+
+
+# 0.4.11 / 2015-07-03
+
+ * Added CESU-8 encoding.
+
+
+# 0.4.10 / 2015-05-26
+
+ * Changed UTF-16 endianness heuristic to take into account any ASCII chars, not
+   just spaces. This should minimize the importance of "default" endianness.
+
+
+# 0.4.9 / 2015-05-24
+
+ * Streamlined BOM handling: strip BOM by default, add BOM when encoding if 
+   addBOM: true. Added docs to Readme.
+ * UTF16 now uses UTF16-LE by default.
+ * Fixed minor issue with big5 encoding.
+ * Added io.js testing on Travis; updated node-iconv version to test against.
+   Now we just skip testing SBCS encodings that node-iconv doesn't support.
+ * (internal refactoring) Updated codec interface to use classes.
+ * Use strict mode in all files.
+
+
+# 0.4.8 / 2015-04-14
+ 
+ * added alias UNICODE-1-1-UTF-7 for UTF-7 encoding (#94)
+
+
+# 0.4.7 / 2015-02-05
+
+ * stop official support of Node.js v0.8. Should still work, but no guarantees.
+   reason: Packages needed for testing are hard to get on Travis CI.
+ * work in environment where Object.prototype is monkey patched with enumerable 
+   props (#89).
+
+
+# 0.4.6 / 2015-01-12
+ 
+ * fix rare aliases of single-byte encodings (thanks @mscdex)
+ * double the timeout for dbcs tests to make them less flaky on travis
+
+
+# 0.4.5 / 2014-11-20
+
+ * fix windows-31j and x-sjis encoding support (@nleush)
+ * minor fix: undefined variable reference when internal error happens
+
+
+# 0.4.4 / 2014-07-16
+
+ * added encodings UTF-7 (RFC2152) and UTF-7-IMAP (RFC3501 Section 5.1.3)
+ * fixed streaming base64 encoding
+
+
+# 0.4.3 / 2014-06-14
+
+ * added encodings UTF-16BE and UTF-16 with BOM
+
+
+# 0.4.2 / 2014-06-12
+
+ * don't throw exception if `extendNodeEncodings()` is called more than once
+
+
+# 0.4.1 / 2014-06-11
+
+ * codepage 808 added
+
+
+# 0.4.0 / 2014-06-10
+
+ * code is rewritten from scratch
+ * all widespread encodings are supported
+ * streaming interface added
+ * browserify compatibility added
+ * (optional) extend core primitive encodings to make usage even simpler
+ * moved from vows to mocha as the testing framework
+
+
diff --git a/backend/node_modules/iconv-lite/LICENSE b/backend/node_modules/iconv-lite/LICENSE
new file mode 100644
index 0000000..d518d83
--- /dev/null
+++ b/backend/node_modules/iconv-lite/LICENSE
@@ -0,0 +1,21 @@
+Copyright (c) 2011 Alexander Shtuchkin
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
diff --git a/backend/node_modules/iconv-lite/README.md b/backend/node_modules/iconv-lite/README.md
new file mode 100644
index 0000000..c981c37
--- /dev/null
+++ b/backend/node_modules/iconv-lite/README.md
@@ -0,0 +1,156 @@
+## Pure JS character encoding conversion [![Build Status](https://travis-ci.org/ashtuchkin/iconv-lite.svg?branch=master)](https://travis-ci.org/ashtuchkin/iconv-lite)
+
+ * Doesn't need native code compilation. Works on Windows and in sandboxed environments like [Cloud9](http://c9.io).
+ * Used in popular projects like [Express.js (body_parser)](https://github.com/expressjs/body-parser), 
+   [Grunt](http://gruntjs.com/), [Nodemailer](http://www.nodemailer.com/), [Yeoman](http://yeoman.io/) and others.
+ * Faster than [node-iconv](https://github.com/bnoordhuis/node-iconv) (see below for performance comparison).
+ * Intuitive encode/decode API
+ * Streaming support for Node v0.10+
+ * [Deprecated] Can extend Node.js primitives (buffers, streams) to support all iconv-lite encodings.
+ * In-browser usage via [Browserify](https://github.com/substack/node-browserify) (~180k gzip compressed with Buffer shim included).
+ * Typescript [type definition file](https://github.com/ashtuchkin/iconv-lite/blob/master/lib/index.d.ts) included.
+ * React Native is supported (need to explicitly `npm install` two more modules: `buffer` and `stream`).
+ * License: MIT.
+
+[![NPM Stats](https://nodei.co/npm/iconv-lite.png?downloads=true&downloadRank=true)](https://npmjs.org/packages/iconv-lite/)
+
+## Usage
+### Basic API
+```javascript
+var iconv = require('iconv-lite');
+
+// Convert from an encoded buffer to js string.
+str = iconv.decode(Buffer.from([0x68, 0x65, 0x6c, 0x6c, 0x6f]), 'win1251');
+
+// Convert from js string to an encoded buffer.
+buf = iconv.encode("Sample input string", 'win1251');
+
+// Check if encoding is supported
+iconv.encodingExists("us-ascii")
+```
+
+### Streaming API (Node v0.10+)
+```javascript
+
+// Decode stream (from binary stream to js strings)
+http.createServer(function(req, res) {
+    var converterStream = iconv.decodeStream('win1251');
+    req.pipe(converterStream);
+
+    converterStream.on('data', function(str) {
+        console.log(str); // Do something with decoded strings, chunk-by-chunk.
+    });
+});
+
+// Convert encoding streaming example
+fs.createReadStream('file-in-win1251.txt')
+    .pipe(iconv.decodeStream('win1251'))
+    .pipe(iconv.encodeStream('ucs2'))
+    .pipe(fs.createWriteStream('file-in-ucs2.txt'));
+
+// Sugar: all encode/decode streams have .collect(cb) method to accumulate data.
+http.createServer(function(req, res) {
+    req.pipe(iconv.decodeStream('win1251')).collect(function(err, body) {
+        assert(typeof body == 'string');
+        console.log(body); // full request body string
+    });
+});
+```
+
+### [Deprecated] Extend Node.js own encodings
+> NOTE: This doesn't work on latest Node versions. See [details](https://github.com/ashtuchkin/iconv-lite/wiki/Node-v4-compatibility).
+
+```javascript
+// After this call all Node basic primitives will understand iconv-lite encodings.
+iconv.extendNodeEncodings();
+
+// Examples:
+buf = new Buffer(str, 'win1251');
+buf.write(str, 'gbk');
+str = buf.toString('latin1');
+assert(Buffer.isEncoding('iso-8859-15'));
+Buffer.byteLength(str, 'us-ascii');
+
+http.createServer(function(req, res) {
+    req.setEncoding('big5');
+    req.collect(function(err, body) {
+        console.log(body);
+    });
+});
+
+fs.createReadStream("file.txt", "shift_jis");
+
+// External modules are also supported (if they use Node primitives, which they probably do).
+request = require('request');
+request({
+    url: "http://github.com/", 
+    encoding: "cp932"
+});
+
+// To remove extensions
+iconv.undoExtendNodeEncodings();
+```
+
+## Supported encodings
+
+ *  All node.js native encodings: utf8, ucs2 / utf16-le, ascii, binary, base64, hex.
+ *  Additional unicode encodings: utf16, utf16-be, utf-7, utf-7-imap.
+ *  All widespread singlebyte encodings: Windows 125x family, ISO-8859 family, 
+    IBM/DOS codepages, Macintosh family, KOI8 family, all others supported by iconv library. 
+    Aliases like 'latin1', 'us-ascii' also supported.
+ *  All widespread multibyte encodings: CP932, CP936, CP949, CP950, GB2312, GBK, GB18030, Big5, Shift_JIS, EUC-JP.
+
+See [all supported encodings on wiki](https://github.com/ashtuchkin/iconv-lite/wiki/Supported-Encodings).
+
+Most singlebyte encodings are generated automatically from [node-iconv](https://github.com/bnoordhuis/node-iconv). Thank you Ben Noordhuis and libiconv authors!
+
+Multibyte encodings are generated from [Unicode.org mappings](http://www.unicode.org/Public/MAPPINGS/) and [WHATWG Encoding Standard mappings](http://encoding.spec.whatwg.org/). Thank you, respective authors!
+
+
+## Encoding/decoding speed
+
+Comparison with node-iconv module (1000x256kb, on MacBook Pro, Core i5/2.6 GHz, Node v0.12.0). 
+Note: your results may vary, so please always check on your hardware.
+
+    operation             iconv@2.1.4   iconv-lite@0.4.7
+    ----------------------------------------------------------
+    encode('win1251')     ~96 Mb/s      ~320 Mb/s
+    decode('win1251')     ~95 Mb/s      ~246 Mb/s
+
+## BOM handling
+
+ * Decoding: BOM is stripped by default, unless overridden by passing `stripBOM: false` in options
+   (f.ex. `iconv.decode(buf, enc, {stripBOM: false})`).
+   A callback might also be given as a `stripBOM` parameter - it'll be called if BOM character was actually found.
+ * If you want to detect UTF-8 BOM when decoding other encodings, use [node-autodetect-decoder-stream](https://github.com/danielgindi/node-autodetect-decoder-stream) module.
+ * Encoding: No BOM added, unless overridden by `addBOM: true` option.
+
+## UTF-16 Encodings
+
+This library supports UTF-16LE, UTF-16BE and UTF-16 encodings. First two are straightforward, but UTF-16 is trying to be
+smart about endianness in the following ways:
+ * Decoding: uses BOM and 'spaces heuristic' to determine input endianness. Default is UTF-16LE, but can be 
+   overridden with `defaultEncoding: 'utf-16be'` option. Strips BOM unless `stripBOM: false`.
+ * Encoding: uses UTF-16LE and writes BOM by default. Use `addBOM: false` to override.
+
+## Other notes
+
+When decoding, be sure to supply a Buffer to decode() method, otherwise [bad things usually happen](https://github.com/ashtuchkin/iconv-lite/wiki/Use-Buffers-when-decoding).  
+Untranslatable characters are set to � or ?. No transliteration is currently supported.  
+Node versions 0.10.31 and 0.11.13 are buggy, don't use them (see #65, #77).  
+
+## Testing
+
+```bash
+$ git clone git@github.com:ashtuchkin/iconv-lite.git
+$ cd iconv-lite
+$ npm install
+$ npm test
+    
+$ # To view performance:
+$ node test/performance.js
+
+$ # To view test coverage:
+$ npm run coverage
+$ open coverage/lcov-report/index.html
+```
diff --git a/backend/node_modules/iconv-lite/encodings/dbcs-codec.js b/backend/node_modules/iconv-lite/encodings/dbcs-codec.js
new file mode 100644
index 0000000..1fe3e16
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/dbcs-codec.js
@@ -0,0 +1,555 @@
+"use strict";
+var Buffer = require("safer-buffer").Buffer;
+
+// Multibyte codec. In this scheme, a character is represented by 1 or more bytes.
+// Our codec supports UTF-16 surrogates, extensions for GB18030 and unicode sequences.
+// To save memory and loading time, we read table files only when requested.
+
+exports._dbcs = DBCSCodec;
+
+var UNASSIGNED = -1,
+    GB18030_CODE = -2,
+    SEQ_START  = -10,
+    NODE_START = -1000,
+    UNASSIGNED_NODE = new Array(0x100),
+    DEF_CHAR = -1;
+
+for (var i = 0; i < 0x100; i++)
+    UNASSIGNED_NODE[i] = UNASSIGNED;
+
+
+// Class DBCSCodec reads and initializes mapping tables.
+function DBCSCodec(codecOptions, iconv) {
+    this.encodingName = codecOptions.encodingName;
+    if (!codecOptions)
+        throw new Error("DBCS codec is called without the data.")
+    if (!codecOptions.table)
+        throw new Error("Encoding '" + this.encodingName + "' has no data.");
+
+    // Load tables.
+    var mappingTable = codecOptions.table();
+
+
+    // Decode tables: MBCS -> Unicode.
+
+    // decodeTables is a trie, encoded as an array of arrays of integers. Internal arrays are trie nodes and all have len = 256.
+    // Trie root is decodeTables[0].
+    // Values: >=  0 -> unicode character code. can be > 0xFFFF
+    //         == UNASSIGNED -> unknown/unassigned sequence.
+    //         == GB18030_CODE -> this is the end of a GB18030 4-byte sequence.
+    //         <= NODE_START -> index of the next node in our trie to process next byte.
+    //         <= SEQ_START  -> index of the start of a character code sequence, in decodeTableSeq.
+    this.decodeTables = [];
+    this.decodeTables[0] = UNASSIGNED_NODE.slice(0); // Create root node.
+
+    // Sometimes a MBCS char corresponds to a sequence of unicode chars. We store them as arrays of integers here. 
+    this.decodeTableSeq = [];
+
+    // Actual mapping tables consist of chunks. Use them to fill up decode tables.
+    for (var i = 0; i < mappingTable.length; i++)
+        this._addDecodeChunk(mappingTable[i]);
+
+    this.defaultCharUnicode = iconv.defaultCharUnicode;
+
+    
+    // Encode tables: Unicode -> DBCS.
+
+    // `encodeTable` is array mapping from unicode char to encoded char. All its values are integers for performance.
+    // Because it can be sparse, it is represented as array of buckets by 256 chars each. Bucket can be null.
+    // Values: >=  0 -> it is a normal char. Write the value (if <=256 then 1 byte, if <=65536 then 2 bytes, etc.).
+    //         == UNASSIGNED -> no conversion found. Output a default char.
+    //         <= SEQ_START  -> it's an index in encodeTableSeq, see below. The character starts a sequence.
+    this.encodeTable = [];
+    
+    // `encodeTableSeq` is used when a sequence of unicode characters is encoded as a single code. We use a tree of
+    // objects where keys correspond to characters in sequence and leafs are the encoded dbcs values. A special DEF_CHAR key
+    // means end of sequence (needed when one sequence is a strict subsequence of another).
+    // Objects are kept separately from encodeTable to increase performance.
+    this.encodeTableSeq = [];
+
+    // Some chars can be decoded, but need not be encoded.
+    var skipEncodeChars = {};
+    if (codecOptions.encodeSkipVals)
+        for (var i = 0; i < codecOptions.encodeSkipVals.length; i++) {
+            var val = codecOptions.encodeSkipVals[i];
+            if (typeof val === 'number')
+                skipEncodeChars[val] = true;
+            else
+                for (var j = val.from; j <= val.to; j++)
+                    skipEncodeChars[j] = true;
+        }
+        
+    // Use decode trie to recursively fill out encode tables.
+    this._fillEncodeTable(0, 0, skipEncodeChars);
+
+    // Add more encoding pairs when needed.
+    if (codecOptions.encodeAdd) {
+        for (var uChar in codecOptions.encodeAdd)
+            if (Object.prototype.hasOwnProperty.call(codecOptions.encodeAdd, uChar))
+                this._setEncodeChar(uChar.charCodeAt(0), codecOptions.encodeAdd[uChar]);
+    }
+
+    this.defCharSB  = this.encodeTable[0][iconv.defaultCharSingleByte.charCodeAt(0)];
+    if (this.defCharSB === UNASSIGNED) this.defCharSB = this.encodeTable[0]['?'];
+    if (this.defCharSB === UNASSIGNED) this.defCharSB = "?".charCodeAt(0);
+
+
+    // Load & create GB18030 tables when needed.
+    if (typeof codecOptions.gb18030 === 'function') {
+        this.gb18030 = codecOptions.gb18030(); // Load GB18030 ranges.
+
+        // Add GB18030 decode tables.
+        var thirdByteNodeIdx = this.decodeTables.length;
+        var thirdByteNode = this.decodeTables[thirdByteNodeIdx] = UNASSIGNED_NODE.slice(0);
+
+        var fourthByteNodeIdx = this.decodeTables.length;
+        var fourthByteNode = this.decodeTables[fourthByteNodeIdx] = UNASSIGNED_NODE.slice(0);
+
+        for (var i = 0x81; i <= 0xFE; i++) {
+            var secondByteNodeIdx = NODE_START - this.decodeTables[0][i];
+            var secondByteNode = this.decodeTables[secondByteNodeIdx];
+            for (var j = 0x30; j <= 0x39; j++)
+                secondByteNode[j] = NODE_START - thirdByteNodeIdx;
+        }
+        for (var i = 0x81; i <= 0xFE; i++)
+            thirdByteNode[i] = NODE_START - fourthByteNodeIdx;
+        for (var i = 0x30; i <= 0x39; i++)
+            fourthByteNode[i] = GB18030_CODE
+    }        
+}
+
+DBCSCodec.prototype.encoder = DBCSEncoder;
+DBCSCodec.prototype.decoder = DBCSDecoder;
+
+// Decoder helpers
+DBCSCodec.prototype._getDecodeTrieNode = function(addr) {
+    var bytes = [];
+    for (; addr > 0; addr >>= 8)
+        bytes.push(addr & 0xFF);
+    if (bytes.length == 0)
+        bytes.push(0);
+
+    var node = this.decodeTables[0];
+    for (var i = bytes.length-1; i > 0; i--) { // Traverse nodes deeper into the trie.
+        var val = node[bytes[i]];
+
+        if (val == UNASSIGNED) { // Create new node.
+            node[bytes[i]] = NODE_START - this.decodeTables.length;
+            this.decodeTables.push(node = UNASSIGNED_NODE.slice(0));
+        }
+        else if (val <= NODE_START) { // Existing node.
+            node = this.decodeTables[NODE_START - val];
+        }
+        else
+            throw new Error("Overwrite byte in " + this.encodingName + ", addr: " + addr.toString(16));
+    }
+    return node;
+}
+
+
+DBCSCodec.prototype._addDecodeChunk = function(chunk) {
+    // First element of chunk is the hex mbcs code where we start.
+    var curAddr = parseInt(chunk[0], 16);
+
+    // Choose the decoding node where we'll write our chars.
+    var writeTable = this._getDecodeTrieNode(curAddr);
+    curAddr = curAddr & 0xFF;
+
+    // Write all other elements of the chunk to the table.
+    for (var k = 1; k < chunk.length; k++) {
+        var part = chunk[k];
+        if (typeof part === "string") { // String, write as-is.
+            for (var l = 0; l < part.length;) {
+                var code = part.charCodeAt(l++);
+                if (0xD800 <= code && code < 0xDC00) { // Decode surrogate
+                    var codeTrail = part.charCodeAt(l++);
+                    if (0xDC00 <= codeTrail && codeTrail < 0xE000)
+                        writeTable[curAddr++] = 0x10000 + (code - 0xD800) * 0x400 + (codeTrail - 0xDC00);
+                    else
+                        throw new Error("Incorrect surrogate pair in "  + this.encodingName + " at chunk " + chunk[0]);
+                }
+                else if (0x0FF0 < code && code <= 0x0FFF) { // Character sequence (our own encoding used)
+                    var len = 0xFFF - code + 2;
+                    var seq = [];
+                    for (var m = 0; m < len; m++)
+                        seq.push(part.charCodeAt(l++)); // Simple variation: don't support surrogates or subsequences in seq.
+
+                    writeTable[curAddr++] = SEQ_START - this.decodeTableSeq.length;
+                    this.decodeTableSeq.push(seq);
+                }
+                else
+                    writeTable[curAddr++] = code; // Basic char
+            }
+        } 
+        else if (typeof part === "number") { // Integer, meaning increasing sequence starting with prev character.
+            var charCode = writeTable[curAddr - 1] + 1;
+            for (var l = 0; l < part; l++)
+                writeTable[curAddr++] = charCode++;
+        }
+        else
+            throw new Error("Incorrect type '" + typeof part + "' given in "  + this.encodingName + " at chunk " + chunk[0]);
+    }
+    if (curAddr > 0xFF)
+        throw new Error("Incorrect chunk in "  + this.encodingName + " at addr " + chunk[0] + ": too long" + curAddr);
+}
+
+// Encoder helpers
+DBCSCodec.prototype._getEncodeBucket = function(uCode) {
+    var high = uCode >> 8; // This could be > 0xFF because of astral characters.
+    if (this.encodeTable[high] === undefined)
+        this.encodeTable[high] = UNASSIGNED_NODE.slice(0); // Create bucket on demand.
+    return this.encodeTable[high];
+}
+
+DBCSCodec.prototype._setEncodeChar = function(uCode, dbcsCode) {
+    var bucket = this._getEncodeBucket(uCode);
+    var low = uCode & 0xFF;
+    if (bucket[low] <= SEQ_START)
+        this.encodeTableSeq[SEQ_START-bucket[low]][DEF_CHAR] = dbcsCode; // There's already a sequence, set a single-char subsequence of it.
+    else if (bucket[low] == UNASSIGNED)
+        bucket[low] = dbcsCode;
+}
+
+DBCSCodec.prototype._setEncodeSequence = function(seq, dbcsCode) {
+    
+    // Get the root of character tree according to first character of the sequence.
+    var uCode = seq[0];
+    var bucket = this._getEncodeBucket(uCode);
+    var low = uCode & 0xFF;
+
+    var node;
+    if (bucket[low] <= SEQ_START) {
+        // There's already a sequence with  - use it.
+        node = this.encodeTableSeq[SEQ_START-bucket[low]];
+    }
+    else {
+        // There was no sequence object - allocate a new one.
+        node = {};
+        if (bucket[low] !== UNASSIGNED) node[DEF_CHAR] = bucket[low]; // If a char was set before - make it a single-char subsequence.
+        bucket[low] = SEQ_START - this.encodeTableSeq.length;
+        this.encodeTableSeq.push(node);
+    }
+
+    // Traverse the character tree, allocating new nodes as needed.
+    for (var j = 1; j < seq.length-1; j++) {
+        var oldVal = node[uCode];
+        if (typeof oldVal === 'object')
+            node = oldVal;
+        else {
+            node = node[uCode] = {}
+            if (oldVal !== undefined)
+                node[DEF_CHAR] = oldVal
+        }
+    }
+
+    // Set the leaf to given dbcsCode.
+    uCode = seq[seq.length-1];
+    node[uCode] = dbcsCode;
+}
+
+DBCSCodec.prototype._fillEncodeTable = function(nodeIdx, prefix, skipEncodeChars) {
+    var node = this.decodeTables[nodeIdx];
+    for (var i = 0; i < 0x100; i++) {
+        var uCode = node[i];
+        var mbCode = prefix + i;
+        if (skipEncodeChars[mbCode])
+            continue;
+
+        if (uCode >= 0)
+            this._setEncodeChar(uCode, mbCode);
+        else if (uCode <= NODE_START)
+            this._fillEncodeTable(NODE_START - uCode, mbCode << 8, skipEncodeChars);
+        else if (uCode <= SEQ_START)
+            this._setEncodeSequence(this.decodeTableSeq[SEQ_START - uCode], mbCode);
+    }
+}
+
+
+
+// == Encoder ==================================================================
+
+function DBCSEncoder(options, codec) {
+    // Encoder state
+    this.leadSurrogate = -1;
+    this.seqObj = undefined;
+    
+    // Static data
+    this.encodeTable = codec.encodeTable;
+    this.encodeTableSeq = codec.encodeTableSeq;
+    this.defaultCharSingleByte = codec.defCharSB;
+    this.gb18030 = codec.gb18030;
+}
+
+DBCSEncoder.prototype.write = function(str) {
+    var newBuf = Buffer.alloc(str.length * (this.gb18030 ? 4 : 3)),
+        leadSurrogate = this.leadSurrogate,
+        seqObj = this.seqObj, nextChar = -1,
+        i = 0, j = 0;
+
+    while (true) {
+        // 0. Get next character.
+        if (nextChar === -1) {
+            if (i == str.length) break;
+            var uCode = str.charCodeAt(i++);
+        }
+        else {
+            var uCode = nextChar;
+            nextChar = -1;    
+        }
+
+        // 1. Handle surrogates.
+        if (0xD800 <= uCode && uCode < 0xE000) { // Char is one of surrogates.
+            if (uCode < 0xDC00) { // We've got lead surrogate.
+                if (leadSurrogate === -1) {
+                    leadSurrogate = uCode;
+                    continue;
+                } else {
+                    leadSurrogate = uCode;
+                    // Double lead surrogate found.
+                    uCode = UNASSIGNED;
+                }
+            } else { // We've got trail surrogate.
+                if (leadSurrogate !== -1) {
+                    uCode = 0x10000 + (leadSurrogate - 0xD800) * 0x400 + (uCode - 0xDC00);
+                    leadSurrogate = -1;
+                } else {
+                    // Incomplete surrogate pair - only trail surrogate found.
+                    uCode = UNASSIGNED;
+                }
+                
+            }
+        }
+        else if (leadSurrogate !== -1) {
+            // Incomplete surrogate pair - only lead surrogate found.
+            nextChar = uCode; uCode = UNASSIGNED; // Write an error, then current char.
+            leadSurrogate = -1;
+        }
+
+        // 2. Convert uCode character.
+        var dbcsCode = UNASSIGNED;
+        if (seqObj !== undefined && uCode != UNASSIGNED) { // We are in the middle of the sequence
+            var resCode = seqObj[uCode];
+            if (typeof resCode === 'object') { // Sequence continues.
+                seqObj = resCode;
+                continue;
+
+            } else if (typeof resCode == 'number') { // Sequence finished. Write it.
+                dbcsCode = resCode;
+
+            } else if (resCode == undefined) { // Current character is not part of the sequence.
+
+                // Try default character for this sequence
+                resCode = seqObj[DEF_CHAR];
+                if (resCode !== undefined) {
+                    dbcsCode = resCode; // Found. Write it.
+                    nextChar = uCode; // Current character will be written too in the next iteration.
+
+                } else {
+                    // TODO: What if we have no default? (resCode == undefined)
+                    // Then, we should write first char of the sequence as-is and try the rest recursively.
+                    // Didn't do it for now because no encoding has this situation yet.
+                    // Currently, just skip the sequence and write current char.
+                }
+            }
+            seqObj = undefined;
+        }
+        else if (uCode >= 0) {  // Regular character
+            var subtable = this.encodeTable[uCode >> 8];
+            if (subtable !== undefined)
+                dbcsCode = subtable[uCode & 0xFF];
+            
+            if (dbcsCode <= SEQ_START) { // Sequence start
+                seqObj = this.encodeTableSeq[SEQ_START-dbcsCode];
+                continue;
+            }
+
+            if (dbcsCode == UNASSIGNED && this.gb18030) {
+                // Use GB18030 algorithm to find character(s) to write.
+                var idx = findIdx(this.gb18030.uChars, uCode);
+                if (idx != -1) {
+                    var dbcsCode = this.gb18030.gbChars[idx] + (uCode - this.gb18030.uChars[idx]);
+                    newBuf[j++] = 0x81 + Math.floor(dbcsCode / 12600); dbcsCode = dbcsCode % 12600;
+                    newBuf[j++] = 0x30 + Math.floor(dbcsCode / 1260); dbcsCode = dbcsCode % 1260;
+                    newBuf[j++] = 0x81 + Math.floor(dbcsCode / 10); dbcsCode = dbcsCode % 10;
+                    newBuf[j++] = 0x30 + dbcsCode;
+                    continue;
+                }
+            }
+        }
+
+        // 3. Write dbcsCode character.
+        if (dbcsCode === UNASSIGNED)
+            dbcsCode = this.defaultCharSingleByte;
+        
+        if (dbcsCode < 0x100) {
+            newBuf[j++] = dbcsCode;
+        }
+        else if (dbcsCode < 0x10000) {
+            newBuf[j++] = dbcsCode >> 8;   // high byte
+            newBuf[j++] = dbcsCode & 0xFF; // low byte
+        }
+        else {
+            newBuf[j++] = dbcsCode >> 16;
+            newBuf[j++] = (dbcsCode >> 8) & 0xFF;
+            newBuf[j++] = dbcsCode & 0xFF;
+        }
+    }
+
+    this.seqObj = seqObj;
+    this.leadSurrogate = leadSurrogate;
+    return newBuf.slice(0, j);
+}
+
+DBCSEncoder.prototype.end = function() {
+    if (this.leadSurrogate === -1 && this.seqObj === undefined)
+        return; // All clean. Most often case.
+
+    var newBuf = Buffer.alloc(10), j = 0;
+
+    if (this.seqObj) { // We're in the sequence.
+        var dbcsCode = this.seqObj[DEF_CHAR];
+        if (dbcsCode !== undefined) { // Write beginning of the sequence.
+            if (dbcsCode < 0x100) {
+                newBuf[j++] = dbcsCode;
+            }
+            else {
+                newBuf[j++] = dbcsCode >> 8;   // high byte
+                newBuf[j++] = dbcsCode & 0xFF; // low byte
+            }
+        } else {
+            // See todo above.
+        }
+        this.seqObj = undefined;
+    }
+
+    if (this.leadSurrogate !== -1) {
+        // Incomplete surrogate pair - only lead surrogate found.
+        newBuf[j++] = this.defaultCharSingleByte;
+        this.leadSurrogate = -1;
+    }
+    
+    return newBuf.slice(0, j);
+}
+
+// Export for testing
+DBCSEncoder.prototype.findIdx = findIdx;
+
+
+// == Decoder ==================================================================
+
+function DBCSDecoder(options, codec) {
+    // Decoder state
+    this.nodeIdx = 0;
+    this.prevBuf = Buffer.alloc(0);
+
+    // Static data
+    this.decodeTables = codec.decodeTables;
+    this.decodeTableSeq = codec.decodeTableSeq;
+    this.defaultCharUnicode = codec.defaultCharUnicode;
+    this.gb18030 = codec.gb18030;
+}
+
+DBCSDecoder.prototype.write = function(buf) {
+    var newBuf = Buffer.alloc(buf.length*2),
+        nodeIdx = this.nodeIdx, 
+        prevBuf = this.prevBuf, prevBufOffset = this.prevBuf.length,
+        seqStart = -this.prevBuf.length, // idx of the start of current parsed sequence.
+        uCode;
+
+    if (prevBufOffset > 0) // Make prev buf overlap a little to make it easier to slice later.
+        prevBuf = Buffer.concat([prevBuf, buf.slice(0, 10)]);
+    
+    for (var i = 0, j = 0; i < buf.length; i++) {
+        var curByte = (i >= 0) ? buf[i] : prevBuf[i + prevBufOffset];
+
+        // Lookup in current trie node.
+        var uCode = this.decodeTables[nodeIdx][curByte];
+
+        if (uCode >= 0) { 
+            // Normal character, just use it.
+        }
+        else if (uCode === UNASSIGNED) { // Unknown char.
+            // TODO: Callback with seq.
+            //var curSeq = (seqStart >= 0) ? buf.slice(seqStart, i+1) : prevBuf.slice(seqStart + prevBufOffset, i+1 + prevBufOffset);
+            i = seqStart; // Try to parse again, after skipping first byte of the sequence ('i' will be incremented by 'for' cycle).
+            uCode = this.defaultCharUnicode.charCodeAt(0);
+        }
+        else if (uCode === GB18030_CODE) {
+            var curSeq = (seqStart >= 0) ? buf.slice(seqStart, i+1) : prevBuf.slice(seqStart + prevBufOffset, i+1 + prevBufOffset);
+            var ptr = (curSeq[0]-0x81)*12600 + (curSeq[1]-0x30)*1260 + (curSeq[2]-0x81)*10 + (curSeq[3]-0x30);
+            var idx = findIdx(this.gb18030.gbChars, ptr);
+            uCode = this.gb18030.uChars[idx] + ptr - this.gb18030.gbChars[idx];
+        }
+        else if (uCode <= NODE_START) { // Go to next trie node.
+            nodeIdx = NODE_START - uCode;
+            continue;
+        }
+        else if (uCode <= SEQ_START) { // Output a sequence of chars.
+            var seq = this.decodeTableSeq[SEQ_START - uCode];
+            for (var k = 0; k < seq.length - 1; k++) {
+                uCode = seq[k];
+                newBuf[j++] = uCode & 0xFF;
+                newBuf[j++] = uCode >> 8;
+            }
+            uCode = seq[seq.length-1];
+        }
+        else
+            throw new Error("iconv-lite internal error: invalid decoding table value " + uCode + " at " + nodeIdx + "/" + curByte);
+
+        // Write the character to buffer, handling higher planes using surrogate pair.
+        if (uCode > 0xFFFF) { 
+            uCode -= 0x10000;
+            var uCodeLead = 0xD800 + Math.floor(uCode / 0x400);
+            newBuf[j++] = uCodeLead & 0xFF;
+            newBuf[j++] = uCodeLead >> 8;
+
+            uCode = 0xDC00 + uCode % 0x400;
+        }
+        newBuf[j++] = uCode & 0xFF;
+        newBuf[j++] = uCode >> 8;
+
+        // Reset trie node.
+        nodeIdx = 0; seqStart = i+1;
+    }
+
+    this.nodeIdx = nodeIdx;
+    this.prevBuf = (seqStart >= 0) ? buf.slice(seqStart) : prevBuf.slice(seqStart + prevBufOffset);
+    return newBuf.slice(0, j).toString('ucs2');
+}
+
+DBCSDecoder.prototype.end = function() {
+    var ret = '';
+
+    // Try to parse all remaining chars.
+    while (this.prevBuf.length > 0) {
+        // Skip 1 character in the buffer.
+        ret += this.defaultCharUnicode;
+        var buf = this.prevBuf.slice(1);
+
+        // Parse remaining as usual.
+        this.prevBuf = Buffer.alloc(0);
+        this.nodeIdx = 0;
+        if (buf.length > 0)
+            ret += this.write(buf);
+    }
+
+    this.nodeIdx = 0;
+    return ret;
+}
+
+// Binary search for GB18030. Returns largest i such that table[i] <= val.
+function findIdx(table, val) {
+    if (table[0] > val)
+        return -1;
+
+    var l = 0, r = table.length;
+    while (l < r-1) { // always table[l] <= val < table[r]
+        var mid = l + Math.floor((r-l+1)/2);
+        if (table[mid] <= val)
+            l = mid;
+        else
+            r = mid;
+    }
+    return l;
+}
+
diff --git a/backend/node_modules/iconv-lite/encodings/dbcs-data.js b/backend/node_modules/iconv-lite/encodings/dbcs-data.js
new file mode 100644
index 0000000..4b61914
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/dbcs-data.js
@@ -0,0 +1,176 @@
+"use strict";
+
+// Description of supported double byte encodings and aliases.
+// Tables are not require()-d until they are needed to speed up library load.
+// require()-s are direct to support Browserify.
+
+module.exports = {
+    
+    // == Japanese/ShiftJIS ====================================================
+    // All japanese encodings are based on JIS X set of standards:
+    // JIS X 0201 - Single-byte encoding of ASCII + ¥ + Kana chars at 0xA1-0xDF.
+    // JIS X 0208 - Main set of 6879 characters, placed in 94x94 plane, to be encoded by 2 bytes. 
+    //              Has several variations in 1978, 1983, 1990 and 1997.
+    // JIS X 0212 - Supplementary plane of 6067 chars in 94x94 plane. 1990. Effectively dead.
+    // JIS X 0213 - Extension and modern replacement of 0208 and 0212. Total chars: 11233.
+    //              2 planes, first is superset of 0208, second - revised 0212.
+    //              Introduced in 2000, revised 2004. Some characters are in Unicode Plane 2 (0x2xxxx)
+
+    // Byte encodings are:
+    //  * Shift_JIS: Compatible with 0201, uses not defined chars in top half as lead bytes for double-byte
+    //               encoding of 0208. Lead byte ranges: 0x81-0x9F, 0xE0-0xEF; Trail byte ranges: 0x40-0x7E, 0x80-0x9E, 0x9F-0xFC.
+    //               Windows CP932 is a superset of Shift_JIS. Some companies added more chars, notably KDDI.
+    //  * EUC-JP:    Up to 3 bytes per character. Used mostly on *nixes.
+    //               0x00-0x7F       - lower part of 0201
+    //               0x8E, 0xA1-0xDF - upper part of 0201
+    //               (0xA1-0xFE)x2   - 0208 plane (94x94).
+    //               0x8F, (0xA1-0xFE)x2 - 0212 plane (94x94).
+    //  * JIS X 208: 7-bit, direct encoding of 0208. Byte ranges: 0x21-0x7E (94 values). Uncommon.
+    //               Used as-is in ISO2022 family.
+    //  * ISO2022-JP: Stateful encoding, with escape sequences to switch between ASCII, 
+    //                0201-1976 Roman, 0208-1978, 0208-1983.
+    //  * ISO2022-JP-1: Adds esc seq for 0212-1990.
+    //  * ISO2022-JP-2: Adds esc seq for GB2313-1980, KSX1001-1992, ISO8859-1, ISO8859-7.
+    //  * ISO2022-JP-3: Adds esc seq for 0201-1976 Kana set, 0213-2000 Planes 1, 2.
+    //  * ISO2022-JP-2004: Adds 0213-2004 Plane 1.
+    //
+    // After JIS X 0213 appeared, Shift_JIS-2004, EUC-JISX0213 and ISO2022-JP-2004 followed, with just changing the planes.
+    //
+    // Overall, it seems that it's a mess :( http://www8.plala.or.jp/tkubota1/unicode-symbols-map2.html
+
+    'shiftjis': {
+        type: '_dbcs',
+        table: function() { return require('./tables/shiftjis.json') },
+        encodeAdd: {'\u00a5': 0x5C, '\u203E': 0x7E},
+        encodeSkipVals: [{from: 0xED40, to: 0xF940}],
+    },
+    'csshiftjis': 'shiftjis',
+    'mskanji': 'shiftjis',
+    'sjis': 'shiftjis',
+    'windows31j': 'shiftjis',
+    'ms31j': 'shiftjis',
+    'xsjis': 'shiftjis',
+    'windows932': 'shiftjis',
+    'ms932': 'shiftjis',
+    '932': 'shiftjis',
+    'cp932': 'shiftjis',
+
+    'eucjp': {
+        type: '_dbcs',
+        table: function() { return require('./tables/eucjp.json') },
+        encodeAdd: {'\u00a5': 0x5C, '\u203E': 0x7E},
+    },
+
+    // TODO: KDDI extension to Shift_JIS
+    // TODO: IBM CCSID 942 = CP932, but F0-F9 custom chars and other char changes.
+    // TODO: IBM CCSID 943 = Shift_JIS = CP932 with original Shift_JIS lower 128 chars.
+
+
+    // == Chinese/GBK ==========================================================
+    // http://en.wikipedia.org/wiki/GBK
+    // We mostly implement W3C recommendation: https://www.w3.org/TR/encoding/#gbk-encoder
+
+    // Oldest GB2312 (1981, ~7600 chars) is a subset of CP936
+    'gb2312': 'cp936',
+    'gb231280': 'cp936',
+    'gb23121980': 'cp936',
+    'csgb2312': 'cp936',
+    'csiso58gb231280': 'cp936',
+    'euccn': 'cp936',
+
+    // Microsoft's CP936 is a subset and approximation of GBK.
+    'windows936': 'cp936',
+    'ms936': 'cp936',
+    '936': 'cp936',
+    'cp936': {
+        type: '_dbcs',
+        table: function() { return require('./tables/cp936.json') },
+    },
+
+    // GBK (~22000 chars) is an extension of CP936 that added user-mapped chars and some other.
+    'gbk': {
+        type: '_dbcs',
+        table: function() { return require('./tables/cp936.json').concat(require('./tables/gbk-added.json')) },
+    },
+    'xgbk': 'gbk',
+    'isoir58': 'gbk',
+
+    // GB18030 is an algorithmic extension of GBK.
+    // Main source: https://www.w3.org/TR/encoding/#gbk-encoder
+    // http://icu-project.org/docs/papers/gb18030.html
+    // http://source.icu-project.org/repos/icu/data/trunk/charset/data/xml/gb-18030-2000.xml
+    // http://www.khngai.com/chinese/charmap/tblgbk.php?page=0
+    'gb18030': {
+        type: '_dbcs',
+        table: function() { return require('./tables/cp936.json').concat(require('./tables/gbk-added.json')) },
+        gb18030: function() { return require('./tables/gb18030-ranges.json') },
+        encodeSkipVals: [0x80],
+        encodeAdd: {'€': 0xA2E3},
+    },
+
+    'chinese': 'gb18030',
+
+
+    // == Korean ===============================================================
+    // EUC-KR, KS_C_5601 and KS X 1001 are exactly the same.
+    'windows949': 'cp949',
+    'ms949': 'cp949',
+    '949': 'cp949',
+    'cp949': {
+        type: '_dbcs',
+        table: function() { return require('./tables/cp949.json') },
+    },
+
+    'cseuckr': 'cp949',
+    'csksc56011987': 'cp949',
+    'euckr': 'cp949',
+    'isoir149': 'cp949',
+    'korean': 'cp949',
+    'ksc56011987': 'cp949',
+    'ksc56011989': 'cp949',
+    'ksc5601': 'cp949',
+
+
+    // == Big5/Taiwan/Hong Kong ================================================
+    // There are lots of tables for Big5 and cp950. Please see the following links for history:
+    // http://moztw.org/docs/big5/  http://www.haible.de/bruno/charsets/conversion-tables/Big5.html
+    // Variations, in roughly number of defined chars:
+    //  * Windows CP 950: Microsoft variant of Big5. Canonical: http://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WINDOWS/CP950.TXT
+    //  * Windows CP 951: Microsoft variant of Big5-HKSCS-2001. Seems to be never public. http://me.abelcheung.org/articles/research/what-is-cp951/
+    //  * Big5-2003 (Taiwan standard) almost superset of cp950.
+    //  * Unicode-at-on (UAO) / Mozilla 1.8. Falling out of use on the Web. Not supported by other browsers.
+    //  * Big5-HKSCS (-2001, -2004, -2008). Hong Kong standard. 
+    //    many unicode code points moved from PUA to Supplementary plane (U+2XXXX) over the years.
+    //    Plus, it has 4 combining sequences.
+    //    Seems that Mozilla refused to support it for 10 yrs. https://bugzilla.mozilla.org/show_bug.cgi?id=162431 https://bugzilla.mozilla.org/show_bug.cgi?id=310299
+    //    because big5-hkscs is the only encoding to include astral characters in non-algorithmic way.
+    //    Implementations are not consistent within browsers; sometimes labeled as just big5.
+    //    MS Internet Explorer switches from big5 to big5-hkscs when a patch applied.
+    //    Great discussion & recap of what's going on https://bugzilla.mozilla.org/show_bug.cgi?id=912470#c31
+    //    In the encoder, it might make sense to support encoding old PUA mappings to Big5 bytes seq-s.
+    //    Official spec: http://www.ogcio.gov.hk/en/business/tech_promotion/ccli/terms/doc/2003cmp_2008.txt
+    //                   http://www.ogcio.gov.hk/tc/business/tech_promotion/ccli/terms/doc/hkscs-2008-big5-iso.txt
+    // 
+    // Current understanding of how to deal with Big5(-HKSCS) is in the Encoding Standard, http://encoding.spec.whatwg.org/#big5-encoder
+    // Unicode mapping (http://www.unicode.org/Public/MAPPINGS/OBSOLETE/EASTASIA/OTHER/BIG5.TXT) is said to be wrong.
+
+    'windows950': 'cp950',
+    'ms950': 'cp950',
+    '950': 'cp950',
+    'cp950': {
+        type: '_dbcs',
+        table: function() { return require('./tables/cp950.json') },
+    },
+
+    // Big5 has many variations and is an extension of cp950. We use Encoding Standard's as a consensus.
+    'big5': 'big5hkscs',
+    'big5hkscs': {
+        type: '_dbcs',
+        table: function() { return require('./tables/cp950.json').concat(require('./tables/big5-added.json')) },
+        encodeSkipVals: [0xa2cc],
+    },
+
+    'cnbig5': 'big5hkscs',
+    'csbig5': 'big5hkscs',
+    'xxbig5': 'big5hkscs',
+};
diff --git a/backend/node_modules/iconv-lite/encodings/index.js b/backend/node_modules/iconv-lite/encodings/index.js
new file mode 100644
index 0000000..e304003
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/index.js
@@ -0,0 +1,22 @@
+"use strict";
+
+// Update this array if you add/rename/remove files in this directory.
+// We support Browserify by skipping automatic module discovery and requiring modules directly.
+var modules = [
+    require("./internal"),
+    require("./utf16"),
+    require("./utf7"),
+    require("./sbcs-codec"),
+    require("./sbcs-data"),
+    require("./sbcs-data-generated"),
+    require("./dbcs-codec"),
+    require("./dbcs-data"),
+];
+
+// Put all encoding/alias/codec definitions to single object and export it. 
+for (var i = 0; i < modules.length; i++) {
+    var module = modules[i];
+    for (var enc in module)
+        if (Object.prototype.hasOwnProperty.call(module, enc))
+            exports[enc] = module[enc];
+}
diff --git a/backend/node_modules/iconv-lite/encodings/internal.js b/backend/node_modules/iconv-lite/encodings/internal.js
new file mode 100644
index 0000000..05ce38b
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/internal.js
@@ -0,0 +1,188 @@
+"use strict";
+var Buffer = require("safer-buffer").Buffer;
+
+// Export Node.js internal encodings.
+
+module.exports = {
+    // Encodings
+    utf8:   { type: "_internal", bomAware: true},
+    cesu8:  { type: "_internal", bomAware: true},
+    unicode11utf8: "utf8",
+
+    ucs2:   { type: "_internal", bomAware: true},
+    utf16le: "ucs2",
+
+    binary: { type: "_internal" },
+    base64: { type: "_internal" },
+    hex:    { type: "_internal" },
+
+    // Codec.
+    _internal: InternalCodec,
+};
+
+//------------------------------------------------------------------------------
+
+function InternalCodec(codecOptions, iconv) {
+    this.enc = codecOptions.encodingName;
+    this.bomAware = codecOptions.bomAware;
+
+    if (this.enc === "base64")
+        this.encoder = InternalEncoderBase64;
+    else if (this.enc === "cesu8") {
+        this.enc = "utf8"; // Use utf8 for decoding.
+        this.encoder = InternalEncoderCesu8;
+
+        // Add decoder for versions of Node not supporting CESU-8
+        if (Buffer.from('eda0bdedb2a9', 'hex').toString() !== '💩') {
+            this.decoder = InternalDecoderCesu8;
+            this.defaultCharUnicode = iconv.defaultCharUnicode;
+        }
+    }
+}
+
+InternalCodec.prototype.encoder = InternalEncoder;
+InternalCodec.prototype.decoder = InternalDecoder;
+
+//------------------------------------------------------------------------------
+
+// We use node.js internal decoder. Its signature is the same as ours.
+var StringDecoder = require('string_decoder').StringDecoder;
+
+if (!StringDecoder.prototype.end) // Node v0.8 doesn't have this method.
+    StringDecoder.prototype.end = function() {};
+
+
+function InternalDecoder(options, codec) {
+    StringDecoder.call(this, codec.enc);
+}
+
+InternalDecoder.prototype = StringDecoder.prototype;
+
+
+//------------------------------------------------------------------------------
+// Encoder is mostly trivial
+
+function InternalEncoder(options, codec) {
+    this.enc = codec.enc;
+}
+
+InternalEncoder.prototype.write = function(str) {
+    return Buffer.from(str, this.enc);
+}
+
+InternalEncoder.prototype.end = function() {
+}
+
+
+//------------------------------------------------------------------------------
+// Except base64 encoder, which must keep its state.
+
+function InternalEncoderBase64(options, codec) {
+    this.prevStr = '';
+}
+
+InternalEncoderBase64.prototype.write = function(str) {
+    str = this.prevStr + str;
+    var completeQuads = str.length - (str.length % 4);
+    this.prevStr = str.slice(completeQuads);
+    str = str.slice(0, completeQuads);
+
+    return Buffer.from(str, "base64");
+}
+
+InternalEncoderBase64.prototype.end = function() {
+    return Buffer.from(this.prevStr, "base64");
+}
+
+
+//------------------------------------------------------------------------------
+// CESU-8 encoder is also special.
+
+function InternalEncoderCesu8(options, codec) {
+}
+
+InternalEncoderCesu8.prototype.write = function(str) {
+    var buf = Buffer.alloc(str.length * 3), bufIdx = 0;
+    for (var i = 0; i < str.length; i++) {
+        var charCode = str.charCodeAt(i);
+        // Naive implementation, but it works because CESU-8 is especially easy
+        // to convert from UTF-16 (which all JS strings are encoded in).
+        if (charCode < 0x80)
+            buf[bufIdx++] = charCode;
+        else if (charCode < 0x800) {
+            buf[bufIdx++] = 0xC0 + (charCode >>> 6);
+            buf[bufIdx++] = 0x80 + (charCode & 0x3f);
+        }
+        else { // charCode will always be < 0x10000 in javascript.
+            buf[bufIdx++] = 0xE0 + (charCode >>> 12);
+            buf[bufIdx++] = 0x80 + ((charCode >>> 6) & 0x3f);
+            buf[bufIdx++] = 0x80 + (charCode & 0x3f);
+        }
+    }
+    return buf.slice(0, bufIdx);
+}
+
+InternalEncoderCesu8.prototype.end = function() {
+}
+
+//------------------------------------------------------------------------------
+// CESU-8 decoder is not implemented in Node v4.0+
+
+function InternalDecoderCesu8(options, codec) {
+    this.acc = 0;
+    this.contBytes = 0;
+    this.accBytes = 0;
+    this.defaultCharUnicode = codec.defaultCharUnicode;
+}
+
+InternalDecoderCesu8.prototype.write = function(buf) {
+    var acc = this.acc, contBytes = this.contBytes, accBytes = this.accBytes, 
+        res = '';
+    for (var i = 0; i < buf.length; i++) {
+        var curByte = buf[i];
+        if ((curByte & 0xC0) !== 0x80) { // Leading byte
+            if (contBytes > 0) { // Previous code is invalid
+                res += this.defaultCharUnicode;
+                contBytes = 0;
+            }
+
+            if (curByte < 0x80) { // Single-byte code
+                res += String.fromCharCode(curByte);
+            } else if (curByte < 0xE0) { // Two-byte code
+                acc = curByte & 0x1F;
+                contBytes = 1; accBytes = 1;
+            } else if (curByte < 0xF0) { // Three-byte code
+                acc = curByte & 0x0F;
+                contBytes = 2; accBytes = 1;
+            } else { // Four or more are not supported for CESU-8.
+                res += this.defaultCharUnicode;
+            }
+        } else { // Continuation byte
+            if (contBytes > 0) { // We're waiting for it.
+                acc = (acc << 6) | (curByte & 0x3f);
+                contBytes--; accBytes++;
+                if (contBytes === 0) {
+                    // Check for overlong encoding, but support Modified UTF-8 (encoding NULL as C0 80)
+                    if (accBytes === 2 && acc < 0x80 && acc > 0)
+                        res += this.defaultCharUnicode;
+                    else if (accBytes === 3 && acc < 0x800)
+                        res += this.defaultCharUnicode;
+                    else
+                        // Actually add character.
+                        res += String.fromCharCode(acc);
+                }
+            } else { // Unexpected continuation byte
+                res += this.defaultCharUnicode;
+            }
+        }
+    }
+    this.acc = acc; this.contBytes = contBytes; this.accBytes = accBytes;
+    return res;
+}
+
+InternalDecoderCesu8.prototype.end = function() {
+    var res = 0;
+    if (this.contBytes > 0)
+        res += this.defaultCharUnicode;
+    return res;
+}
diff --git a/backend/node_modules/iconv-lite/encodings/sbcs-codec.js b/backend/node_modules/iconv-lite/encodings/sbcs-codec.js
new file mode 100644
index 0000000..abac5ff
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/sbcs-codec.js
@@ -0,0 +1,72 @@
+"use strict";
+var Buffer = require("safer-buffer").Buffer;
+
+// Single-byte codec. Needs a 'chars' string parameter that contains 256 or 128 chars that
+// correspond to encoded bytes (if 128 - then lower half is ASCII). 
+
+exports._sbcs = SBCSCodec;
+function SBCSCodec(codecOptions, iconv) {
+    if (!codecOptions)
+        throw new Error("SBCS codec is called without the data.")
+    
+    // Prepare char buffer for decoding.
+    if (!codecOptions.chars || (codecOptions.chars.length !== 128 && codecOptions.chars.length !== 256))
+        throw new Error("Encoding '"+codecOptions.type+"' has incorrect 'chars' (must be of len 128 or 256)");
+    
+    if (codecOptions.chars.length === 128) {
+        var asciiString = "";
+        for (var i = 0; i < 128; i++)
+            asciiString += String.fromCharCode(i);
+        codecOptions.chars = asciiString + codecOptions.chars;
+    }
+
+    this.decodeBuf = Buffer.from(codecOptions.chars, 'ucs2');
+    
+    // Encoding buffer.
+    var encodeBuf = Buffer.alloc(65536, iconv.defaultCharSingleByte.charCodeAt(0));
+
+    for (var i = 0; i < codecOptions.chars.length; i++)
+        encodeBuf[codecOptions.chars.charCodeAt(i)] = i;
+
+    this.encodeBuf = encodeBuf;
+}
+
+SBCSCodec.prototype.encoder = SBCSEncoder;
+SBCSCodec.prototype.decoder = SBCSDecoder;
+
+
+function SBCSEncoder(options, codec) {
+    this.encodeBuf = codec.encodeBuf;
+}
+
+SBCSEncoder.prototype.write = function(str) {
+    var buf = Buffer.alloc(str.length);
+    for (var i = 0; i < str.length; i++)
+        buf[i] = this.encodeBuf[str.charCodeAt(i)];
+    
+    return buf;
+}
+
+SBCSEncoder.prototype.end = function() {
+}
+
+
+function SBCSDecoder(options, codec) {
+    this.decodeBuf = codec.decodeBuf;
+}
+
+SBCSDecoder.prototype.write = function(buf) {
+    // Strings are immutable in JS -> we use ucs2 buffer to speed up computations.
+    var decodeBuf = this.decodeBuf;
+    var newBuf = Buffer.alloc(buf.length*2);
+    var idx1 = 0, idx2 = 0;
+    for (var i = 0; i < buf.length; i++) {
+        idx1 = buf[i]*2; idx2 = i*2;
+        newBuf[idx2] = decodeBuf[idx1];
+        newBuf[idx2+1] = decodeBuf[idx1+1];
+    }
+    return newBuf.toString('ucs2');
+}
+
+SBCSDecoder.prototype.end = function() {
+}
diff --git a/backend/node_modules/iconv-lite/encodings/sbcs-data-generated.js b/backend/node_modules/iconv-lite/encodings/sbcs-data-generated.js
new file mode 100644
index 0000000..9b48236
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/sbcs-data-generated.js
@@ -0,0 +1,451 @@
+"use strict";
+
+// Generated data for sbcs codec. Don't edit manually. Regenerate using generation/gen-sbcs.js script.
+module.exports = {
+  "437": "cp437",
+  "737": "cp737",
+  "775": "cp775",
+  "850": "cp850",
+  "852": "cp852",
+  "855": "cp855",
+  "856": "cp856",
+  "857": "cp857",
+  "858": "cp858",
+  "860": "cp860",
+  "861": "cp861",
+  "862": "cp862",
+  "863": "cp863",
+  "864": "cp864",
+  "865": "cp865",
+  "866": "cp866",
+  "869": "cp869",
+  "874": "windows874",
+  "922": "cp922",
+  "1046": "cp1046",
+  "1124": "cp1124",
+  "1125": "cp1125",
+  "1129": "cp1129",
+  "1133": "cp1133",
+  "1161": "cp1161",
+  "1162": "cp1162",
+  "1163": "cp1163",
+  "1250": "windows1250",
+  "1251": "windows1251",
+  "1252": "windows1252",
+  "1253": "windows1253",
+  "1254": "windows1254",
+  "1255": "windows1255",
+  "1256": "windows1256",
+  "1257": "windows1257",
+  "1258": "windows1258",
+  "28591": "iso88591",
+  "28592": "iso88592",
+  "28593": "iso88593",
+  "28594": "iso88594",
+  "28595": "iso88595",
+  "28596": "iso88596",
+  "28597": "iso88597",
+  "28598": "iso88598",
+  "28599": "iso88599",
+  "28600": "iso885910",
+  "28601": "iso885911",
+  "28603": "iso885913",
+  "28604": "iso885914",
+  "28605": "iso885915",
+  "28606": "iso885916",
+  "windows874": {
+    "type": "_sbcs",
+    "chars": "€����…�����������‘’“”•–—�������� กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู����฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛����"
+  },
+  "win874": "windows874",
+  "cp874": "windows874",
+  "windows1250": {
+    "type": "_sbcs",
+    "chars": "€�‚�„…†‡�‰Š‹ŚŤŽŹ�‘’“”•–—�™š›śťžź ˇ˘Ł¤Ą¦§¨©Ş«¬­®Ż°±˛ł´µ¶·¸ąş»Ľ˝ľżŔÁÂĂÄĹĆÇČÉĘËĚÍÎĎĐŃŇÓÔŐÖ×ŘŮÚŰÜÝŢßŕáâăäĺćçčéęëěíîďđńňóôőö÷řůúűüýţ˙"
+  },
+  "win1250": "windows1250",
+  "cp1250": "windows1250",
+  "windows1251": {
+    "type": "_sbcs",
+    "chars": "ЂЃ‚ѓ„…†‡€‰Љ‹ЊЌЋЏђ‘’“”•–—�™љ›њќћџ ЎўЈ¤Ґ¦§Ё©Є«¬­®Ї°±Ііґµ¶·ё№є»јЅѕїАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя"
+  },
+  "win1251": "windows1251",
+  "cp1251": "windows1251",
+  "windows1252": {
+    "type": "_sbcs",
+    "chars": "€�‚ƒ„…†‡ˆ‰Š‹Œ�Ž��‘’“”•–—˜™š›œ�žŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
+  },
+  "win1252": "windows1252",
+  "cp1252": "windows1252",
+  "windows1253": {
+    "type": "_sbcs",
+    "chars": "€�‚ƒ„…†‡�‰�‹�����‘’“”•–—�™�›���� ΅Ά£¤¥¦§¨©�«¬­®―°±²³΄µ¶·ΈΉΊ»Ό½ΎΏΐΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡ�ΣΤΥΦΧΨΩΪΫάέήίΰαβγδεζηθικλμνξοπρςστυφχψωϊϋόύώ�"
+  },
+  "win1253": "windows1253",
+  "cp1253": "windows1253",
+  "windows1254": {
+    "type": "_sbcs",
+    "chars": "€�‚ƒ„…†‡ˆ‰Š‹Œ����‘’“”•–—˜™š›œ��Ÿ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏĞÑÒÓÔÕÖ×ØÙÚÛÜİŞßàáâãäåæçèéêëìíîïğñòóôõö÷øùúûüışÿ"
+  },
+  "win1254": "windows1254",
+  "cp1254": "windows1254",
+  "windows1255": {
+    "type": "_sbcs",
+    "chars": "€�‚ƒ„…†‡ˆ‰�‹�����‘’“”•–—˜™�›���� ¡¢£₪¥¦§¨©×«¬­®¯°±²³´µ¶·¸¹÷»¼½¾¿ְֱֲֳִֵֶַָֹֺֻּֽ־ֿ׀ׁׂ׃װױײ׳״�������אבגדהוזחטיךכלםמןנסעףפץצקרשת��‎‏�"
+  },
+  "win1255": "windows1255",
+  "cp1255": "windows1255",
+  "windows1256": {
+    "type": "_sbcs",
+    "chars": "€پ‚ƒ„…†‡ˆ‰ٹ‹Œچژڈگ‘’“”•–—ک™ڑ›œ‌‍ں ،¢£¤¥¦§¨©ھ«¬­®¯°±²³´µ¶·¸¹؛»¼½¾؟ہءآأؤإئابةتثجحخدذرزسشصض×طظعغـفقكàلâمنهوçèéêëىيîïًٌٍَôُِ÷ّùْûü‎‏ے"
+  },
+  "win1256": "windows1256",
+  "cp1256": "windows1256",
+  "windows1257": {
+    "type": "_sbcs",
+    "chars": "€�‚�„…†‡�‰�‹�¨ˇ¸�‘’“”•–—�™�›�¯˛� �¢£¤�¦§Ø©Ŗ«¬­®Æ°±²³´µ¶·ø¹ŗ»¼½¾æĄĮĀĆÄÅĘĒČÉŹĖĢĶĪĻŠŃŅÓŌÕÖ×ŲŁŚŪÜŻŽßąįāćäåęēčéźėģķīļšńņóōõö÷ųłśūüżž˙"
+  },
+  "win1257": "windows1257",
+  "cp1257": "windows1257",
+  "windows1258": {
+    "type": "_sbcs",
+    "chars": "€�‚ƒ„…†‡ˆ‰�‹Œ����‘’“”•–—˜™�›œ��Ÿ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂĂÄÅÆÇÈÉÊË̀ÍÎÏĐÑ̉ÓÔƠÖ×ØÙÚÛÜỮßàáâăäåæçèéêë́íîïđṇ̃óôơö÷øùúûüư₫ÿ"
+  },
+  "win1258": "windows1258",
+  "cp1258": "windows1258",
+  "iso88591": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
+  },
+  "cp28591": "iso88591",
+  "iso88592": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ Ą˘Ł¤ĽŚ§¨ŠŞŤŹ­ŽŻ°ą˛ł´ľśˇ¸šşťź˝žżŔÁÂĂÄĹĆÇČÉĘËĚÍÎĎĐŃŇÓÔŐÖ×ŘŮÚŰÜÝŢßŕáâăäĺćçčéęëěíîďđńňóôőö÷řůúűüýţ˙"
+  },
+  "cp28592": "iso88592",
+  "iso88593": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ Ħ˘£¤�Ĥ§¨İŞĞĴ­�Ż°ħ²³´µĥ·¸ışğĵ½�żÀÁÂ�ÄĊĈÇÈÉÊËÌÍÎÏ�ÑÒÓÔĠÖ×ĜÙÚÛÜŬŜßàáâ�äċĉçèéêëìíîï�ñòóôġö÷ĝùúûüŭŝ˙"
+  },
+  "cp28593": "iso88593",
+  "iso88594": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ĄĸŖ¤ĨĻ§¨ŠĒĢŦ­Ž¯°ą˛ŗ´ĩļˇ¸šēģŧŊžŋĀÁÂÃÄÅÆĮČÉĘËĖÍÎĪĐŅŌĶÔÕÖ×ØŲÚÛÜŨŪßāáâãäåæįčéęëėíîīđņōķôõö÷øųúûüũū˙"
+  },
+  "cp28594": "iso88594",
+  "iso88595": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ЁЂЃЄЅІЇЈЉЊЋЌ­ЎЏАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя№ёђѓєѕіїјљњћќ§ўџ"
+  },
+  "cp28595": "iso88595",
+  "iso88596": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ���¤�������،­�������������؛���؟�ءآأؤإئابةتثجحخدذرزسشصضطظعغ�����ـفقكلمنهوىيًٌٍَُِّْ�������������"
+  },
+  "cp28596": "iso88596",
+  "iso88597": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ‘’£€₯¦§¨©ͺ«¬­�―°±²³΄΅Ά·ΈΉΊ»Ό½ΎΏΐΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡ�ΣΤΥΦΧΨΩΪΫάέήίΰαβγδεζηθικλμνξοπρςστυφχψωϊϋόύώ�"
+  },
+  "cp28597": "iso88597",
+  "iso88598": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ �¢£¤¥¦§¨©×«¬­®¯°±²³´µ¶·¸¹÷»¼½¾��������������������������������‗אבגדהוזחטיךכלםמןנסעףפץצקרשת��‎‏�"
+  },
+  "cp28598": "iso88598",
+  "iso88599": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏĞÑÒÓÔÕÖ×ØÙÚÛÜİŞßàáâãäåæçèéêëìíîïğñòóôõö÷øùúûüışÿ"
+  },
+  "cp28599": "iso88599",
+  "iso885910": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ĄĒĢĪĨĶ§ĻĐŠŦŽ­ŪŊ°ąēģīĩķ·ļđšŧž―ūŋĀÁÂÃÄÅÆĮČÉĘËĖÍÎÏÐŅŌÓÔÕÖŨØŲÚÛÜÝÞßāáâãäåæįčéęëėíîïðņōóôõöũøųúûüýþĸ"
+  },
+  "cp28600": "iso885910",
+  "iso885911": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู����฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛����"
+  },
+  "cp28601": "iso885911",
+  "iso885913": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ”¢£¤„¦§Ø©Ŗ«¬­®Æ°±²³“µ¶·ø¹ŗ»¼½¾æĄĮĀĆÄÅĘĒČÉŹĖĢĶĪĻŠŃŅÓŌÕÖ×ŲŁŚŪÜŻŽßąįāćäåęēčéźėģķīļšńņóōõö÷ųłśūüżž’"
+  },
+  "cp28603": "iso885913",
+  "iso885914": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ Ḃḃ£ĊċḊ§Ẁ©ẂḋỲ­®ŸḞḟĠġṀṁ¶ṖẁṗẃṠỳẄẅṡÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏŴÑÒÓÔÕÖṪØÙÚÛÜÝŶßàáâãäåæçèéêëìíîïŵñòóôõöṫøùúûüýŷÿ"
+  },
+  "cp28604": "iso885914",
+  "iso885915": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£€¥Š§š©ª«¬­®¯°±²³Žµ¶·ž¹º»ŒœŸ¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
+  },
+  "cp28605": "iso885915",
+  "iso885916": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ĄąŁ€„Š§š©Ș«Ź­źŻ°±ČłŽ”¶·žčș»ŒœŸżÀÁÂĂÄĆÆÇÈÉÊËÌÍÎÏĐŃÒÓÔŐÖŚŰÙÚÛÜĘȚßàáâăäćæçèéêëìíîïđńòóôőöśűùúûüęțÿ"
+  },
+  "cp28606": "iso885916",
+  "cp437": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜ¢£¥₧ƒáíóúñѪº¿⌐¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+  "ibm437": "cp437",
+  "csibm437": "cp437",
+  "cp737": {
+    "type": "_sbcs",
+    "chars": "ΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩαβγδεζηθικλμνξοπρσςτυφχψ░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀ωάέήϊίόύϋώΆΈΉΊΌΎΏ±≥≤ΪΫ÷≈°∙·√ⁿ²■ "
+  },
+  "ibm737": "cp737",
+  "csibm737": "cp737",
+  "cp775": {
+    "type": "_sbcs",
+    "chars": "ĆüéāäģåćłēŖŗīŹÄÅÉæÆōöĢ¢ŚśÖÜø£ØפĀĪóŻżź”¦©®¬½¼Ł«»░▒▓│┤ĄČĘĖ╣║╗╝ĮŠ┐└┴┬├─┼ŲŪ╚╔╩╦╠═╬Žąčęėįšųūž┘┌█▄▌▐▀ÓßŌŃõÕµńĶķĻļņĒŅ’­±“¾¶§÷„°∙·¹³²■ "
+  },
+  "ibm775": "cp775",
+  "csibm775": "cp775",
+  "cp850": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜø£Ø׃áíóúñѪº¿®¬½¼¡«»░▒▓│┤ÁÂÀ©╣║╗╝¢¥┐└┴┬├─┼ãÃ╚╔╩╦╠═╬¤ðÐÊËÈıÍÎÏ┘┌█▄¦Ì▀ÓßÔÒõÕµþÞÚÛÙýݯ´­±‗¾¶§÷¸°¨·¹³²■ "
+  },
+  "ibm850": "cp850",
+  "csibm850": "cp850",
+  "cp852": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäůćçłëŐőîŹÄĆÉĹĺôöĽľŚśÖÜŤťŁ×čáíóúĄąŽžĘ꬟Ⱥ«»░▒▓│┤ÁÂĚŞ╣║╗╝Żż┐└┴┬├─┼Ăă╚╔╩╦╠═╬¤đĐĎËďŇÍÎě┘┌█▄ŢŮ▀ÓßÔŃńňŠšŔÚŕŰýÝţ´­˝˛ˇ˘§÷¸°¨˙űŘř■ "
+  },
+  "ibm852": "cp852",
+  "csibm852": "cp852",
+  "cp855": {
+    "type": "_sbcs",
+    "chars": "ђЂѓЃёЁєЄѕЅіІїЇјЈљЉњЊћЋќЌўЎџЏюЮъЪаАбБцЦдДеЕфФгГ«»░▒▓│┤хХиИ╣║╗╝йЙ┐└┴┬├─┼кК╚╔╩╦╠═╬¤лЛмМнНоОп┘┌█▄Пя▀ЯрРсСтТуУжЖвВьЬ№­ыЫзЗшШэЭщЩчЧ§■ "
+  },
+  "ibm855": "cp855",
+  "csibm855": "cp855",
+  "cp856": {
+    "type": "_sbcs",
+    "chars": "אבגדהוזחטיךכלםמןנסעףפץצקרשת�£�×����������®¬½¼�«»░▒▓│┤���©╣║╗╝¢¥┐└┴┬├─┼��╚╔╩╦╠═╬¤���������┘┌█▄¦�▀������µ�������¯´­±‗¾¶§÷¸°¨·¹³²■ "
+  },
+  "ibm856": "cp856",
+  "csibm856": "cp856",
+  "cp857": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäàåçêëèïîıÄÅÉæÆôöòûùİÖÜø£ØŞşáíóúñÑĞ𿮬½¼¡«»░▒▓│┤ÁÂÀ©╣║╗╝¢¥┐└┴┬├─┼ãÃ╚╔╩╦╠═╬¤ºªÊËÈ�ÍÎÏ┘┌█▄¦Ì▀ÓßÔÒõÕµ�×ÚÛÙìÿ¯´­±�¾¶§÷¸°¨·¹³²■ "
+  },
+  "ibm857": "cp857",
+  "csibm857": "cp857",
+  "cp858": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜø£Ø׃áíóúñѪº¿®¬½¼¡«»░▒▓│┤ÁÂÀ©╣║╗╝¢¥┐└┴┬├─┼ãÃ╚╔╩╦╠═╬¤ðÐÊËÈ€ÍÎÏ┘┌█▄¦Ì▀ÓßÔÒõÕµþÞÚÛÙýݯ´­±‗¾¶§÷¸°¨·¹³²■ "
+  },
+  "ibm858": "cp858",
+  "csibm858": "cp858",
+  "cp860": {
+    "type": "_sbcs",
+    "chars": "ÇüéâãàÁçêÊèÍÔìÃÂÉÀÈôõòÚùÌÕÜ¢£Ù₧ÓáíóúñѪº¿Ò¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+  "ibm860": "cp860",
+  "csibm860": "cp860",
+  "cp861": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäàåçêëèÐðÞÄÅÉæÆôöþûÝýÖÜø£Ø₧ƒáíóúÁÍÓÚ¿⌐¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+  "ibm861": "cp861",
+  "csibm861": "cp861",
+  "cp862": {
+    "type": "_sbcs",
+    "chars": "אבגדהוזחטיךכלםמןנסעףפץצקרשת¢£¥₧ƒáíóúñѪº¿⌐¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+  "ibm862": "cp862",
+  "csibm862": "cp862",
+  "cp863": {
+    "type": "_sbcs",
+    "chars": "ÇüéâÂà¶çêëèïî‗À§ÉÈÊôËÏûù¤ÔÜ¢£ÙÛƒ¦´óú¨¸³¯Î⌐¬½¼¾«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+  "ibm863": "cp863",
+  "csibm863": "cp863",
+  "cp864": {
+    "type": "_sbcs",
+    "chars": "\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f !\"#$٪&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~°·∙√▒─│┼┤┬├┴┐┌└┘β∞φ±½¼≈«»ﻷﻸ��ﻻﻼ� ­ﺂ£¤ﺄ��ﺎﺏﺕﺙ،ﺝﺡﺥ٠١٢٣٤٥٦٧٨٩ﻑ؛ﺱﺵﺹ؟¢ﺀﺁﺃﺅﻊﺋﺍﺑﺓﺗﺛﺟﺣﺧﺩﺫﺭﺯﺳﺷﺻﺿﻁﻅﻋﻏ¦¬÷×ﻉـﻓﻗﻛﻟﻣﻧﻫﻭﻯﻳﺽﻌﻎﻍﻡﹽّﻥﻩﻬﻰﻲﻐﻕﻵﻶﻝﻙﻱ■�"
+  },
+  "ibm864": "cp864",
+  "csibm864": "cp864",
+  "cp865": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜø£Ø₧ƒáíóúñѪº¿⌐¬½¼¡«¤░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+  "ibm865": "cp865",
+  "csibm865": "cp865",
+  "cp866": {
+    "type": "_sbcs",
+    "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмноп░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀рстуфхцчшщъыьэюяЁёЄєЇїЎў°∙·√№¤■ "
+  },
+  "ibm866": "cp866",
+  "csibm866": "cp866",
+  "cp869": {
+    "type": "_sbcs",
+    "chars": "������Ά�·¬¦‘’Έ―ΉΊΪΌ��ΎΫ©Ώ²³ά£έήίϊΐόύΑΒΓΔΕΖΗ½ΘΙ«»░▒▓│┤ΚΛΜΝ╣║╗╝ΞΟ┐└┴┬├─┼ΠΡ╚╔╩╦╠═╬ΣΤΥΦΧΨΩαβγ┘┌█▄δε▀ζηθικλμνξοπρσςτ΄­±υφχ§ψ΅°¨ωϋΰώ■ "
+  },
+  "ibm869": "cp869",
+  "csibm869": "cp869",
+  "cp922": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®‾°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏŠÑÒÓÔÕÖ×ØÙÚÛÜÝŽßàáâãäåæçèéêëìíîïšñòóôõö÷øùúûüýžÿ"
+  },
+  "ibm922": "cp922",
+  "csibm922": "cp922",
+  "cp1046": {
+    "type": "_sbcs",
+    "chars": "ﺈ×÷ﹱˆ■│─┐┌└┘ﹹﹻﹽﹿﹷﺊﻰﻳﻲﻎﻏﻐﻶﻸﻺﻼ ¤ﺋﺑﺗﺛﺟﺣ،­ﺧﺳ٠١٢٣٤٥٦٧٨٩ﺷ؛ﺻﺿﻊ؟ﻋءآأؤإئابةتثجحخدذرزسشصضطﻇعغﻌﺂﺄﺎﻓـفقكلمنهوىيًٌٍَُِّْﻗﻛﻟﻵﻷﻹﻻﻣﻧﻬﻩ�"
+  },
+  "ibm1046": "cp1046",
+  "csibm1046": "cp1046",
+  "cp1124": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ЁЂҐЄЅІЇЈЉЊЋЌ­ЎЏАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя№ёђґєѕіїјљњћќ§ўџ"
+  },
+  "ibm1124": "cp1124",
+  "csibm1124": "cp1124",
+  "cp1125": {
+    "type": "_sbcs",
+    "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмноп░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀рстуфхцчшщъыьэюяЁёҐґЄєІіЇї·√№¤■ "
+  },
+  "ibm1125": "cp1125",
+  "csibm1125": "cp1125",
+  "cp1129": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§œ©ª«¬­®¯°±²³Ÿµ¶·Œ¹º»¼½¾¿ÀÁÂĂÄÅÆÇÈÉÊË̀ÍÎÏĐÑ̉ÓÔƠÖ×ØÙÚÛÜỮßàáâăäåæçèéêë́íîïđṇ̃óôơö÷øùúûüư₫ÿ"
+  },
+  "ibm1129": "cp1129",
+  "csibm1129": "cp1129",
+  "cp1133": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ກຂຄງຈສຊຍດຕຖທນບປຜຝພຟມຢຣລວຫອຮ���ຯະາຳິີຶືຸູຼັົຽ���ເແໂໃໄ່້໊໋໌ໍໆ�ໜໝ₭����������������໐໑໒໓໔໕໖໗໘໙��¢¬¦�"
+  },
+  "ibm1133": "cp1133",
+  "csibm1133": "cp1133",
+  "cp1161": {
+    "type": "_sbcs",
+    "chars": "��������������������������������่กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู้๊๋€฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛¢¬¦ "
+  },
+  "ibm1161": "cp1161",
+  "csibm1161": "cp1161",
+  "cp1162": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู����฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛����"
+  },
+  "ibm1162": "cp1162",
+  "csibm1162": "cp1162",
+  "cp1163": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£€¥¦§œ©ª«¬­®¯°±²³Ÿµ¶·Œ¹º»¼½¾¿ÀÁÂĂÄÅÆÇÈÉÊË̀ÍÎÏĐÑ̉ÓÔƠÖ×ØÙÚÛÜỮßàáâăäåæçèéêë́íîïđṇ̃óôơö÷øùúûüư₫ÿ"
+  },
+  "ibm1163": "cp1163",
+  "csibm1163": "cp1163",
+  "maccroatian": {
+    "type": "_sbcs",
+    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®Š™´¨≠ŽØ∞±≤≥∆µ∂∑∏š∫ªºΩžø¿¡¬√ƒ≈Ć«Č… ÀÃÕŒœĐ—“”‘’÷◊�©⁄¤‹›Æ»–·‚„‰ÂćÁčÈÍÎÏÌÓÔđÒÚÛÙıˆ˜¯πË˚¸Êæˇ"
+  },
+  "maccyrillic": {
+    "type": "_sbcs",
+    "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ†°¢£§•¶І®©™Ђђ≠Ѓѓ∞±≤≥іµ∂ЈЄєЇїЉљЊњјЅ¬√ƒ≈∆«»… ЋћЌќѕ–—“”‘’÷„ЎўЏџ№Ёёяабвгдежзийклмнопрстуфхцчшщъыьэю¤"
+  },
+  "macgreek": {
+    "type": "_sbcs",
+    "chars": "Ĺ²É³ÖÜ΅àâä΄¨çéèê룙î‰ôö¦­ùûü†ΓΔΘΛΞΠß®©ΣΪ§≠°·Α±≤≥¥ΒΕΖΗΙΚΜΦΫΨΩάΝ¬ΟΡ≈Τ«»… ΥΧΆΈœ–―“”‘’÷ΉΊΌΎέήίόΏύαβψδεφγηιξκλμνοπώρστθωςχυζϊϋΐΰ�"
+  },
+  "maciceland": {
+    "type": "_sbcs",
+    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûüÝ°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄¤ÐðÞþý·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ"
+  },
+  "macroman": {
+    "type": "_sbcs",
+    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄¤‹›fifl‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ"
+  },
+  "macromania": {
+    "type": "_sbcs",
+    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®©™´¨≠ĂŞ∞±≤≥¥µ∂∑∏π∫ªºΩăş¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄¤‹›Ţţ‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ"
+  },
+  "macthai": {
+    "type": "_sbcs",
+    "chars": "«»…“”�•‘’� กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู​–—฿เแโใไๅๆ็่้๊๋์ํ™๏๐๑๒๓๔๕๖๗๘๙®©����"
+  },
+  "macturkish": {
+    "type": "_sbcs",
+    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸĞğİıŞş‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙ�ˆ˜¯˘˙˚¸˝˛ˇ"
+  },
+  "macukraine": {
+    "type": "_sbcs",
+    "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ†°Ґ£§•¶І®©™Ђђ≠Ѓѓ∞±≤≥іµґЈЄєЇїЉљЊњјЅ¬√ƒ≈∆«»… ЋћЌќѕ–—“”‘’÷„ЎўЏџ№Ёёяабвгдежзийклмнопрстуфхцчшщъыьэю¤"
+  },
+  "koi8r": {
+    "type": "_sbcs",
+    "chars": "─│┌┐└┘├┤┬┴┼▀▄█▌▐░▒▓⌠■∙√≈≤≥ ⌡°²·÷═║╒ё╓╔╕╖╗╘╙╚╛╜╝╞╟╠╡Ё╢╣╤╥╦╧╨╩╪╫╬©юабцдефгхийклмнопярстужвьызшэщчъЮАБЦДЕФГХИЙКЛМНОПЯРСТУЖВЬЫЗШЭЩЧЪ"
+  },
+  "koi8u": {
+    "type": "_sbcs",
+    "chars": "─│┌┐└┘├┤┬┴┼▀▄█▌▐░▒▓⌠■∙√≈≤≥ ⌡°²·÷═║╒ёє╔ії╗╘╙╚╛ґ╝╞╟╠╡ЁЄ╣ІЇ╦╧╨╩╪Ґ╬©юабцдефгхийклмнопярстужвьызшэщчъЮАБЦДЕФГХИЙКЛМНОПЯРСТУЖВЬЫЗШЭЩЧЪ"
+  },
+  "koi8ru": {
+    "type": "_sbcs",
+    "chars": "─│┌┐└┘├┤┬┴┼▀▄█▌▐░▒▓⌠■∙√≈≤≥ ⌡°²·÷═║╒ёє╔ії╗╘╙╚╛ґў╞╟╠╡ЁЄ╣ІЇ╦╧╨╩╪ҐЎ©юабцдефгхийклмнопярстужвьызшэщчъЮАБЦДЕФГХИЙКЛМНОПЯРСТУЖВЬЫЗШЭЩЧЪ"
+  },
+  "koi8t": {
+    "type": "_sbcs",
+    "chars": "қғ‚Ғ„…†‡�‰ҳ‹ҲҷҶ�Қ‘’“”•–—�™�›�����ӯӮё¤ӣ¦§���«¬­®�°±²Ё�Ӣ¶·�№�»���©юабцдефгхийклмнопярстужвьызшэщчъЮАБЦДЕФГХИЙКЛМНОПЯРСТУЖВЬЫЗШЭЩЧЪ"
+  },
+  "armscii8": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ �և։)(»«—.՝,-֊…՜՛՞ԱաԲբԳգԴդԵեԶզԷէԸըԹթԺժԻիԼլԽխԾծԿկՀհՁձՂղՃճՄմՅյՆնՇշՈոՉչՊպՋջՌռՍսՎվՏտՐրՑցՒւՓփՔքՕօՖֆ՚�"
+  },
+  "rk1048": {
+    "type": "_sbcs",
+    "chars": "ЂЃ‚ѓ„…†‡€‰Љ‹ЊҚҺЏђ‘’“”•–—�™љ›њқһџ ҰұӘ¤Ө¦§Ё©Ғ«¬­®Ү°±Ііөµ¶·ё№ғ»әҢңүАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя"
+  },
+  "tcvn": {
+    "type": "_sbcs",
+    "chars": "\u0000ÚỤ\u0003ỪỬỮ\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010ỨỰỲỶỸÝỴ\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~ÀẢÃÁẠẶẬÈẺẼÉẸỆÌỈĨÍỊÒỎÕÓỌỘỜỞỠỚỢÙỦŨ ĂÂÊÔƠƯĐăâêôơưđẶ̀̀̉̃́àảãáạẲằẳẵắẴẮẦẨẪẤỀặầẩẫấậèỂẻẽéẹềểễếệìỉỄẾỒĩíịòỔỏõóọồổỗốộờởỡớợùỖủũúụừửữứựỳỷỹýỵỐ"
+  },
+  "georgianacademy": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿აბგდევზთიკლმნოპჟრსტუფქღყშჩცძწჭხჯჰჱჲჳჴჵჶçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
+  },
+  "georgianps": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿აბგდევზჱთიკლმნჲოპჟრსტჳუფქღყშჩცძწჭხჴჯჰჵæçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
+  },
+  "pt154": {
+    "type": "_sbcs",
+    "chars": "ҖҒӮғ„…ҶҮҲүҠӢҢҚҺҸҗ‘’“”•–—ҳҷҡӣңқһҹ ЎўЈӨҘҰ§Ё©Ә«¬ӯ®Ҝ°ұІіҙө¶·ё№ә»јҪҫҝАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя"
+  },
+  "viscii": {
+    "type": "_sbcs",
+    "chars": "\u0000\u0001Ẳ\u0003\u0004ẴẪ\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013Ỷ\u0015\u0016\u0017\u0018Ỹ\u001a\u001b\u001c\u001dỴ\u001f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~ẠẮẰẶẤẦẨẬẼẸẾỀỂỄỆỐỒỔỖỘỢỚỜỞỊỎỌỈỦŨỤỲÕắằặấầẩậẽẹếềểễệốồổỗỠƠộờởịỰỨỪỬơớƯÀÁÂÃẢĂẳẵÈÉÊẺÌÍĨỳĐứÒÓÔạỷừửÙÚỹỵÝỡưàáâãảăữẫèéêẻìíĩỉđựòóôõỏọụùúũủýợỮ"
+  },
+  "iso646cn": {
+    "type": "_sbcs",
+    "chars": "\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f !\"#¥%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}‾��������������������������������������������������������������������������������������������������������������������������������"
+  },
+  "iso646jp": {
+    "type": "_sbcs",
+    "chars": "\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[¥]^_`abcdefghijklmnopqrstuvwxyz{|}‾��������������������������������������������������������������������������������������������������������������������������������"
+  },
+  "hproman8": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ÀÂÈÊËÎÏ´ˋˆ¨˜ÙÛ₤¯Ýý°ÇçÑñ¡¿¤£¥§ƒ¢âêôûáéóúàèòùäëöüÅîØÆåíøæÄìÖÜÉïßÔÁÃãÐðÍÌÓÒÕõŠšÚŸÿÞþ·µ¶¾—¼½ªº«■»±�"
+  },
+  "macintosh": {
+    "type": "_sbcs",
+    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄¤‹›fifl‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ"
+  },
+  "ascii": {
+    "type": "_sbcs",
+    "chars": "��������������������������������������������������������������������������������������������������������������������������������"
+  },
+  "tis620": {
+    "type": "_sbcs",
+    "chars": "���������������������������������กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู����฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛����"
+  }
+}
\ No newline at end of file
diff --git a/backend/node_modules/iconv-lite/encodings/sbcs-data.js b/backend/node_modules/iconv-lite/encodings/sbcs-data.js
new file mode 100644
index 0000000..fdb81a3
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/sbcs-data.js
@@ -0,0 +1,174 @@
+"use strict";
+
+// Manually added data to be used by sbcs codec in addition to generated one.
+
+module.exports = {
+    // Not supported by iconv, not sure why.
+    "10029": "maccenteuro",
+    "maccenteuro": {
+        "type": "_sbcs",
+        "chars": "ÄĀāÉĄÖÜáąČäčĆć鏟ĎíďĒēĖóėôöõúĚěü†°Ę£§•¶ß®©™ę¨≠ģĮįĪ≤≥īĶ∂∑łĻļĽľĹĺŅņѬ√ńŇ∆«»… ňŐÕőŌ–—“”‘’÷◊ōŔŕŘ‹›řŖŗŠ‚„šŚśÁŤťÍŽžŪÓÔūŮÚůŰűŲųÝýķŻŁżĢˇ"
+    },
+
+    "808": "cp808",
+    "ibm808": "cp808",
+    "cp808": {
+        "type": "_sbcs",
+        "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмноп░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀рстуфхцчшщъыьэюяЁёЄєЇїЎў°∙·√№€■ "
+    },
+
+    "mik": {
+        "type": "_sbcs",
+        "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя└┴┬├─┼╣║╚╔╩╦╠═╬┐░▒▓│┤№§╗╝┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+    },
+
+    // Aliases of generated encodings.
+    "ascii8bit": "ascii",
+    "usascii": "ascii",
+    "ansix34": "ascii",
+    "ansix341968": "ascii",
+    "ansix341986": "ascii",
+    "csascii": "ascii",
+    "cp367": "ascii",
+    "ibm367": "ascii",
+    "isoir6": "ascii",
+    "iso646us": "ascii",
+    "iso646irv": "ascii",
+    "us": "ascii",
+
+    "latin1": "iso88591",
+    "latin2": "iso88592",
+    "latin3": "iso88593",
+    "latin4": "iso88594",
+    "latin5": "iso88599",
+    "latin6": "iso885910",
+    "latin7": "iso885913",
+    "latin8": "iso885914",
+    "latin9": "iso885915",
+    "latin10": "iso885916",
+
+    "csisolatin1": "iso88591",
+    "csisolatin2": "iso88592",
+    "csisolatin3": "iso88593",
+    "csisolatin4": "iso88594",
+    "csisolatincyrillic": "iso88595",
+    "csisolatinarabic": "iso88596",
+    "csisolatingreek" : "iso88597",
+    "csisolatinhebrew": "iso88598",
+    "csisolatin5": "iso88599",
+    "csisolatin6": "iso885910",
+
+    "l1": "iso88591",
+    "l2": "iso88592",
+    "l3": "iso88593",
+    "l4": "iso88594",
+    "l5": "iso88599",
+    "l6": "iso885910",
+    "l7": "iso885913",
+    "l8": "iso885914",
+    "l9": "iso885915",
+    "l10": "iso885916",
+
+    "isoir14": "iso646jp",
+    "isoir57": "iso646cn",
+    "isoir100": "iso88591",
+    "isoir101": "iso88592",
+    "isoir109": "iso88593",
+    "isoir110": "iso88594",
+    "isoir144": "iso88595",
+    "isoir127": "iso88596",
+    "isoir126": "iso88597",
+    "isoir138": "iso88598",
+    "isoir148": "iso88599",
+    "isoir157": "iso885910",
+    "isoir166": "tis620",
+    "isoir179": "iso885913",
+    "isoir199": "iso885914",
+    "isoir203": "iso885915",
+    "isoir226": "iso885916",
+
+    "cp819": "iso88591",
+    "ibm819": "iso88591",
+
+    "cyrillic": "iso88595",
+
+    "arabic": "iso88596",
+    "arabic8": "iso88596",
+    "ecma114": "iso88596",
+    "asmo708": "iso88596",
+
+    "greek" : "iso88597",
+    "greek8" : "iso88597",
+    "ecma118" : "iso88597",
+    "elot928" : "iso88597",
+
+    "hebrew": "iso88598",
+    "hebrew8": "iso88598",
+
+    "turkish": "iso88599",
+    "turkish8": "iso88599",
+
+    "thai": "iso885911",
+    "thai8": "iso885911",
+
+    "celtic": "iso885914",
+    "celtic8": "iso885914",
+    "isoceltic": "iso885914",
+
+    "tis6200": "tis620",
+    "tis62025291": "tis620",
+    "tis62025330": "tis620",
+
+    "10000": "macroman",
+    "10006": "macgreek",
+    "10007": "maccyrillic",
+    "10079": "maciceland",
+    "10081": "macturkish",
+
+    "cspc8codepage437": "cp437",
+    "cspc775baltic": "cp775",
+    "cspc850multilingual": "cp850",
+    "cspcp852": "cp852",
+    "cspc862latinhebrew": "cp862",
+    "cpgr": "cp869",
+
+    "msee": "cp1250",
+    "mscyrl": "cp1251",
+    "msansi": "cp1252",
+    "msgreek": "cp1253",
+    "msturk": "cp1254",
+    "mshebr": "cp1255",
+    "msarab": "cp1256",
+    "winbaltrim": "cp1257",
+
+    "cp20866": "koi8r",
+    "20866": "koi8r",
+    "ibm878": "koi8r",
+    "cskoi8r": "koi8r",
+
+    "cp21866": "koi8u",
+    "21866": "koi8u",
+    "ibm1168": "koi8u",
+
+    "strk10482002": "rk1048",
+
+    "tcvn5712": "tcvn",
+    "tcvn57121": "tcvn",
+
+    "gb198880": "iso646cn",
+    "cn": "iso646cn",
+
+    "csiso14jisc6220ro": "iso646jp",
+    "jisc62201969ro": "iso646jp",
+    "jp": "iso646jp",
+
+    "cshproman8": "hproman8",
+    "r8": "hproman8",
+    "roman8": "hproman8",
+    "xroman8": "hproman8",
+    "ibm1051": "hproman8",
+
+    "mac": "macintosh",
+    "csmacintosh": "macintosh",
+};
+
diff --git a/backend/node_modules/iconv-lite/encodings/tables/big5-added.json b/backend/node_modules/iconv-lite/encodings/tables/big5-added.json
new file mode 100644
index 0000000..3c3d3c2
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/tables/big5-added.json
@@ -0,0 +1,122 @@
+[
+["8740","䏰䰲䘃䖦䕸𧉧䵷䖳𧲱䳢𧳅㮕䜶䝄䱇䱀𤊿𣘗𧍒𦺋𧃒䱗𪍑䝏䗚䲅𧱬䴇䪤䚡𦬣爥𥩔𡩣𣸆𣽡晍囻"],
+["8767","綕夝𨮹㷴霴𧯯寛𡵞媤㘥𩺰嫑宷峼杮薓𩥅瑡璝㡵𡵓𣚞𦀡㻬"],
+["87a1","𥣞㫵竼龗𤅡𨤍𣇪𠪊𣉞䌊蒄龖鐯䤰蘓墖靊鈘秐稲晠権袝瑌篅枂稬剏遆㓦珄𥶹瓆鿇垳䤯呌䄱𣚎堘穲𧭥讏䚮𦺈䆁𥶙箮𢒼鿈𢓁𢓉𢓌鿉蔄𣖻䂴鿊䓡𪷿拁灮鿋"],
+["8840","㇀",4,"𠄌㇅𠃑𠃍㇆㇇𠃋𡿨㇈𠃊㇉㇊㇋㇌𠄎㇍㇎ĀÁǍÀĒÉĚÈŌÓǑÒ࿿Ê̄Ế࿿Ê̌ỀÊāáǎàɑēéěèīíǐìōóǒòūúǔùǖǘǚ"],
+["88a1","ǜü࿿ê̄ế࿿ê̌ềêɡ⏚⏛"],
+["8940","𪎩𡅅"],
+["8943","攊"],
+["8946","丽滝鵎釟"],
+["894c","𧜵撑会伨侨兖兴农凤务动医华发变团声处备夲头学实実岚庆总斉柾栄桥济炼电纤纬纺织经统缆缷艺苏药视设询车轧轮"],
+["89a1","琑糼緍楆竉刧"],
+["89ab","醌碸酞肼"],
+["89b0","贋胶𠧧"],
+["89b5","肟黇䳍鷉鸌䰾𩷶𧀎鸊𪄳㗁"],
+["89c1","溚舾甙"],
+["89c5","䤑马骏龙禇𨑬𡷊𠗐𢫦两亁亀亇亿仫伷㑌侽㹈倃傈㑽㒓㒥円夅凛凼刅争剹劐匧㗇厩㕑厰㕓参吣㕭㕲㚁咓咣咴咹哐哯唘唣唨㖘唿㖥㖿嗗㗅"],
+["8a40","𧶄唥"],
+["8a43","𠱂𠴕𥄫喐𢳆㧬𠍁蹆𤶸𩓥䁓𨂾睺𢰸㨴䟕𨅝𦧲𤷪擝𠵼𠾴𠳕𡃴撍蹾𠺖𠰋𠽤𢲩𨉖𤓓"],
+["8a64","𠵆𩩍𨃩䟴𤺧𢳂骲㩧𩗴㿭㔆𥋇𩟔𧣈𢵄鵮頕"],
+["8a76","䏙𦂥撴哣𢵌𢯊𡁷㧻𡁯"],
+["8aa1","𦛚𦜖𧦠擪𥁒𠱃蹨𢆡𨭌𠜱"],
+["8aac","䠋𠆩㿺塳𢶍"],
+["8ab2","𤗈𠓼𦂗𠽌𠶖啹䂻䎺"],
+["8abb","䪴𢩦𡂝膪飵𠶜捹㧾𢝵跀嚡摼㹃"],
+["8ac9","𪘁𠸉𢫏𢳉"],
+["8ace","𡃈𣧂㦒㨆𨊛㕸𥹉𢃇噒𠼱𢲲𩜠㒼氽𤸻"],
+["8adf","𧕴𢺋𢈈𪙛𨳍𠹺𠰴𦠜羓𡃏𢠃𢤹㗻𥇣𠺌𠾍𠺪㾓𠼰𠵇𡅏𠹌"],
+["8af6","𠺫𠮩𠵈𡃀𡄽㿹𢚖搲𠾭"],
+["8b40","𣏴𧘹𢯎𠵾𠵿𢱑𢱕㨘𠺘𡃇𠼮𪘲𦭐𨳒𨶙𨳊閪哌苄喹"],
+["8b55","𩻃鰦骶𧝞𢷮煀腭胬尜𦕲脴㞗卟𨂽醶𠻺𠸏𠹷𠻻㗝𤷫㘉𠳖嚯𢞵𡃉𠸐𠹸𡁸𡅈𨈇𡑕𠹹𤹐𢶤婔𡀝𡀞𡃵𡃶垜𠸑"],
+["8ba1","𧚔𨋍𠾵𠹻𥅾㜃𠾶𡆀𥋘𪊽𤧚𡠺𤅷𨉼墙剨㘚𥜽箲孨䠀䬬鼧䧧鰟鮍𥭴𣄽嗻㗲嚉丨夂𡯁屮靑𠂆乛亻㔾尣彑忄㣺扌攵歺氵氺灬爫丬犭𤣩罒礻糹罓𦉪㓁"],
+["8bde","𦍋耂肀𦘒𦥑卝衤见𧢲讠贝钅镸长门𨸏韦页风飞饣𩠐鱼鸟黄歯龜丷𠂇阝户钢"],
+["8c40","倻淾𩱳龦㷉袏𤅎灷峵䬠𥇍㕙𥴰愢𨨲辧釶熑朙玺𣊁𪄇㲋𡦀䬐磤琂冮𨜏䀉橣𪊺䈣蘏𠩯稪𩥇𨫪靕灍匤𢁾鏴盙𨧣龧矝亣俰傼丯众龨吴綋墒壐𡶶庒庙忂𢜒斋"],
+["8ca1","𣏹椙橃𣱣泿"],
+["8ca7","爀𤔅玌㻛𤨓嬕璹讃𥲤𥚕窓篬糃繬苸薗龩袐龪躹龫迏蕟駠鈡龬𨶹𡐿䁱䊢娚"],
+["8cc9","顨杫䉶圽"],
+["8cce","藖𤥻芿𧄍䲁𦵴嵻𦬕𦾾龭龮宖龯曧繛湗秊㶈䓃𣉖𢞖䎚䔶"],
+["8ce6","峕𣬚諹屸㴒𣕑嵸龲煗䕘𤃬𡸣䱷㥸㑊𠆤𦱁諌侴𠈹妿腬顖𩣺弻"],
+["8d40","𠮟"],
+["8d42","𢇁𨥭䄂䚻𩁹㼇龳𪆵䃸㟖䛷𦱆䅼𨚲𧏿䕭㣔𥒚䕡䔛䶉䱻䵶䗪㿈𤬏㙡䓞䒽䇭崾嵈嵖㷼㠏嶤嶹㠠㠸幂庽弥徃㤈㤔㤿㥍惗愽峥㦉憷憹懏㦸戬抐拥挘㧸嚱"],
+["8da1","㨃揢揻搇摚㩋擀崕嘡龟㪗斆㪽旿晓㫲暒㬢朖㭂枤栀㭘桊梄㭲㭱㭻椉楃牜楤榟榅㮼槖㯝橥橴橱檂㯬檙㯲檫檵櫔櫶殁毁毪汵沪㳋洂洆洦涁㳯涤涱渕渘温溆𨧀溻滢滚齿滨滩漤漴㵆𣽁澁澾㵪㵵熷岙㶊瀬㶑灐灔灯灿炉𠌥䏁㗱𠻘"],
+["8e40","𣻗垾𦻓焾𥟠㙎榢𨯩孴穉𥣡𩓙穥穽𥦬窻窰竂竃燑𦒍䇊竚竝竪䇯咲𥰁笋筕笩𥌎𥳾箢筯莜𥮴𦱿篐萡箒箸𥴠㶭𥱥蒒篺簆簵𥳁籄粃𤢂粦晽𤕸糉糇糦籴糳糵糎"],
+["8ea1","繧䔝𦹄絝𦻖璍綉綫焵綳緒𤁗𦀩緤㴓緵𡟹緥𨍭縝𦄡𦅚繮纒䌫鑬縧罀罁罇礶𦋐駡羗𦍑羣𡙡𠁨䕜𣝦䔃𨌺翺𦒉者耈耝耨耯𪂇𦳃耻耼聡𢜔䦉𦘦𣷣𦛨朥肧𨩈脇脚墰𢛶汿𦒘𤾸擧𡒊舘𡡞橓𤩥𤪕䑺舩𠬍𦩒𣵾俹𡓽蓢荢𦬊𤦧𣔰𡝳𣷸芪椛芳䇛"],
+["8f40","蕋苐茚𠸖𡞴㛁𣅽𣕚艻苢茘𣺋𦶣𦬅𦮗𣗎㶿茝嗬莅䔋𦶥莬菁菓㑾𦻔橗蕚㒖𦹂𢻯葘𥯤葱㷓䓤檧葊𣲵祘蒨𦮖𦹷𦹃蓞萏莑䒠蒓蓤𥲑䉀𥳀䕃蔴嫲𦺙䔧蕳䔖枿蘖"],
+["8fa1","𨘥𨘻藁𧂈蘂𡖂𧃍䕫䕪蘨㙈𡢢号𧎚虾蝱𪃸蟮𢰧螱蟚蠏噡虬桖䘏衅衆𧗠𣶹𧗤衞袜䙛袴袵揁装睷𧜏覇覊覦覩覧覼𨨥觧𧤤𧪽誜瞓釾誐𧩙竩𧬺𣾏䜓𧬸煼謌謟𥐰𥕥謿譌譍誩𤩺讐讛誯𡛟䘕衏貛𧵔𧶏貫㜥𧵓賖𧶘𧶽贒贃𡤐賛灜贑𤳉㻐起"],
+["9040","趩𨀂𡀔𤦊㭼𨆼𧄌竧躭躶軃鋔輙輭𨍥𨐒辥錃𪊟𠩐辳䤪𨧞𨔽𣶻廸𣉢迹𪀔𨚼𨔁𢌥㦀𦻗逷𨔼𧪾遡𨕬𨘋邨𨜓郄𨛦邮都酧㫰醩釄粬𨤳𡺉鈎沟鉁鉢𥖹銹𨫆𣲛𨬌𥗛"],
+["90a1","𠴱錬鍫𨫡𨯫炏嫃𨫢𨫥䥥鉄𨯬𨰹𨯿鍳鑛躼閅閦鐦閠濶䊹𢙺𨛘𡉼𣸮䧟氜陻隖䅬隣𦻕懚隶磵𨫠隽双䦡𦲸𠉴𦐐𩂯𩃥𤫑𡤕𣌊霱虂霶䨏䔽䖅𤫩灵孁霛靜𩇕靗孊𩇫靟鐥僐𣂷𣂼鞉鞟鞱鞾韀韒韠𥑬韮琜𩐳響韵𩐝𧥺䫑頴頳顋顦㬎𧅵㵑𠘰𤅜"],
+["9140","𥜆飊颷飈飇䫿𦴧𡛓喰飡飦飬鍸餹𤨩䭲𩡗𩤅駵騌騻騐驘𥜥㛄𩂱𩯕髠髢𩬅髴䰎鬔鬭𨘀倴鬴𦦨㣃𣁽魐魀𩴾婅𡡣鮎𤉋鰂鯿鰌𩹨鷔𩾷𪆒𪆫𪃡𪄣𪇟鵾鶃𪄴鸎梈"],
+["91a1","鷄𢅛𪆓𪈠𡤻𪈳鴹𪂹𪊴麐麕麞麢䴴麪麯𤍤黁㭠㧥㴝伲㞾𨰫鼂鼈䮖鐤𦶢鼗鼖鼹嚟嚊齅馸𩂋韲葿齢齩竜龎爖䮾𤥵𤦻煷𤧸𤍈𤩑玞𨯚𡣺禟𨥾𨸶鍩鏳𨩄鋬鎁鏋𨥬𤒹爗㻫睲穃烐𤑳𤏸煾𡟯炣𡢾𣖙㻇𡢅𥐯𡟸㜢𡛻𡠹㛡𡝴𡣑𥽋㜣𡛀坛𤨥𡏾𡊨"],
+["9240","𡏆𡒶蔃𣚦蔃葕𤦔𧅥𣸱𥕜𣻻𧁒䓴𣛮𩦝𦼦柹㜳㰕㷧塬𡤢栐䁗𣜿𤃡𤂋𤄏𦰡哋嚞𦚱嚒𠿟𠮨𠸍鏆𨬓鎜仸儫㠙𤐶亼𠑥𠍿佋侊𥙑婨𠆫𠏋㦙𠌊𠐔㐵伩𠋀𨺳𠉵諚𠈌亘"],
+["92a1","働儍侢伃𤨎𣺊佂倮偬傁俌俥偘僼兙兛兝兞湶𣖕𣸹𣺿浲𡢄𣺉冨凃𠗠䓝𠒣𠒒𠒑赺𨪜𠜎剙劤𠡳勡鍮䙺熌𤎌𠰠𤦬𡃤槑𠸝瑹㻞璙琔瑖玘䮎𤪼𤂍叐㖄爏𤃉喴𠍅响𠯆圝鉝雴鍦埝垍坿㘾壋媙𨩆𡛺𡝯𡜐娬妸銏婾嫏娒𥥆𡧳𡡡𤊕㛵洅瑃娡𥺃"],
+["9340","媁𨯗𠐓鏠璌𡌃焅䥲鐈𨧻鎽㞠尞岞幞幈𡦖𡥼𣫮廍孏𡤃𡤄㜁𡢠㛝𡛾㛓脪𨩇𡶺𣑲𨦨弌弎𡤧𡞫婫𡜻孄蘔𧗽衠恾𢡠𢘫忛㺸𢖯𢖾𩂈𦽳懀𠀾𠁆𢘛憙憘恵𢲛𢴇𤛔𩅍"],
+["93a1","摱𤙥𢭪㨩𢬢𣑐𩣪𢹸挷𪑛撶挱揑𤧣𢵧护𢲡搻敫楲㯴𣂎𣊭𤦉𣊫唍𣋠𡣙𩐿曎𣊉𣆳㫠䆐𥖄𨬢𥖏𡛼𥕛𥐥磮𣄃𡠪𣈴㑤𣈏𣆂𤋉暎𦴤晫䮓昰𧡰𡷫晣𣋒𣋡昞𥡲㣑𣠺𣞼㮙𣞢𣏾瓐㮖枏𤘪梶栞㯄檾㡣𣟕𤒇樳橒櫉欅𡤒攑梘橌㯗橺歗𣿀𣲚鎠鋲𨯪𨫋"],
+["9440","銉𨀞𨧜鑧涥漋𤧬浧𣽿㶏渄𤀼娽渊塇洤硂焻𤌚𤉶烱牐犇犔𤞏𤜥兹𤪤𠗫瑺𣻸𣙟𤩊𤤗𥿡㼆㺱𤫟𨰣𣼵悧㻳瓌琼鎇琷䒟𦷪䕑疃㽣𤳙𤴆㽘畕癳𪗆㬙瑨𨫌𤦫𤦎㫻"],
+["94a1","㷍𤩎㻿𤧅𤣳釺圲鍂𨫣𡡤僟𥈡𥇧睸𣈲眎眏睻𤚗𣞁㩞𤣰琸璛㺿𤪺𤫇䃈𤪖𦆮錇𥖁砞碍碈磒珐祙𧝁𥛣䄎禛蒖禥樭𣻺稺秴䅮𡛦䄲鈵秱𠵌𤦌𠊙𣶺𡝮㖗啫㕰㚪𠇔𠰍竢婙𢛵𥪯𥪜娍𠉛磰娪𥯆竾䇹籝籭䈑𥮳𥺼𥺦糍𤧹𡞰粎籼粮檲緜縇緓罎𦉡"],
+["9540","𦅜𧭈綗𥺂䉪𦭵𠤖柖𠁎𣗏埄𦐒𦏸𤥢翝笧𠠬𥫩𥵃笌𥸎駦虅驣樜𣐿㧢𤧷𦖭騟𦖠蒀𧄧𦳑䓪脷䐂胆脉腂𦞴飃𦩂艢艥𦩑葓𦶧蘐𧈛媆䅿𡡀嬫𡢡嫤𡣘蚠蜨𣶏蠭𧐢娂"],
+["95a1","衮佅袇袿裦襥襍𥚃襔𧞅𧞄𨯵𨯙𨮜𨧹㺭蒣䛵䛏㟲訽訜𩑈彍鈫𤊄旔焩烄𡡅鵭貟賩𧷜妚矃姰䍮㛔踪躧𤰉輰轊䋴汘澻𢌡䢛潹溋𡟚鯩㚵𤤯邻邗啱䤆醻鐄𨩋䁢𨫼鐧𨰝𨰻蓥訫閙閧閗閖𨴴瑅㻂𤣿𤩂𤏪㻧𣈥随𨻧𨹦𨹥㻌𤧭𤩸𣿮琒瑫㻼靁𩂰"],
+["9640","桇䨝𩂓𥟟靝鍨𨦉𨰦𨬯𦎾銺嬑譩䤼珹𤈛鞛靱餸𠼦巁𨯅𤪲頟𩓚鋶𩗗釥䓀𨭐𤩧𨭤飜𨩅㼀鈪䤥萔餻饍𧬆㷽馛䭯馪驜𨭥𥣈檏騡嫾騯𩣱䮐𩥈馼䮽䮗鍽塲𡌂堢𤦸"],
+["96a1","𡓨硄𢜟𣶸棅㵽鑘㤧慐𢞁𢥫愇鱏鱓鱻鰵鰐魿鯏𩸭鮟𪇵𪃾鴡䲮𤄄鸘䲰鴌𪆴𪃭𪃳𩤯鶥蒽𦸒𦿟𦮂藼䔳𦶤𦺄𦷰萠藮𦸀𣟗𦁤秢𣖜𣙀䤭𤧞㵢鏛銾鍈𠊿碹鉷鑍俤㑀遤𥕝砽硔碶硋𡝗𣇉𤥁㚚佲濚濙瀞瀞吔𤆵垻壳垊鴖埗焴㒯𤆬燫𦱀𤾗嬨𡞵𨩉"],
+["9740","愌嫎娋䊼𤒈㜬䭻𨧼鎻鎸𡣖𠼝葲𦳀𡐓𤋺𢰦𤏁妔𣶷𦝁綨𦅛𦂤𤦹𤦋𨧺鋥珢㻩璴𨭣𡢟㻡𤪳櫘珳珻㻖𤨾𤪔𡟙𤩦𠎧𡐤𤧥瑈𤤖炥𤥶銄珦鍟𠓾錱𨫎𨨖鎆𨯧𥗕䤵𨪂煫"],
+["97a1","𤥃𠳿嚤𠘚𠯫𠲸唂秄𡟺緾𡛂𤩐𡡒䔮鐁㜊𨫀𤦭妰𡢿𡢃𧒄媡㛢𣵛㚰鉟婹𨪁𡡢鍴㳍𠪴䪖㦊僴㵩㵌𡎜煵䋻𨈘渏𩃤䓫浗𧹏灧沯㳖𣿭𣸭渂漌㵯𠏵畑㚼㓈䚀㻚䡱姄鉮䤾轁𨰜𦯀堒埈㛖𡑒烾𤍢𤩱𢿣𡊰𢎽梹楧𡎘𣓥𧯴𣛟𨪃𣟖𣏺𤲟樚𣚭𦲷萾䓟䓎"],
+["9840","𦴦𦵑𦲂𦿞漗𧄉茽𡜺菭𦲀𧁓𡟛妉媂𡞳婡婱𡤅𤇼㜭姯𡜼㛇熎鎐暚𤊥婮娫𤊓樫𣻹𧜶𤑛𤋊焝𤉙𨧡侰𦴨峂𤓎𧹍𤎽樌𤉖𡌄炦焳𤏩㶥泟勇𤩏繥姫崯㷳彜𤩝𡟟綤萦"],
+["98a1","咅𣫺𣌀𠈔坾𠣕𠘙㿥𡾞𪊶瀃𩅛嵰玏糓𨩙𩐠俈翧狍猐𧫴猸猹𥛶獁獈㺩𧬘遬燵𤣲珡臶㻊県㻑沢国琙琞琟㻢㻰㻴㻺瓓㼎㽓畂畭畲疍㽼痈痜㿀癍㿗癴㿜発𤽜熈嘣覀塩䀝睃䀹条䁅㗛瞘䁪䁯属瞾矋売砘点砜䂨砹硇硑硦葈𥔵礳栃礲䄃"],
+["9940","䄉禑禙辻稆込䅧窑䆲窼艹䇄竏竛䇏両筢筬筻簒簛䉠䉺类粜䊌粸䊔糭输烀𠳏総緔緐緽羮羴犟䎗耠耥笹耮耱联㷌垴炠肷胩䏭脌猪脎脒畠脔䐁㬹腖腙腚"],
+["99a1","䐓堺腼膄䐥膓䐭膥埯臁臤艔䒏芦艶苊苘苿䒰荗险榊萅烵葤惣蒈䔄蒾蓡蓸蔐蔸蕒䔻蕯蕰藠䕷虲蚒蚲蛯际螋䘆䘗袮裿褤襇覑𧥧訩訸誔誴豑賔賲贜䞘塟跃䟭仮踺嗘坔蹱嗵躰䠷軎転軤軭軲辷迁迊迌逳駄䢭飠鈓䤞鈨鉘鉫銱銮銿"],
+["9a40","鋣鋫鋳鋴鋽鍃鎄鎭䥅䥑麿鐗匁鐝鐭鐾䥪鑔鑹锭関䦧间阳䧥枠䨤靀䨵鞲韂噔䫤惨颹䬙飱塄餎餙冴餜餷饂饝饢䭰駅䮝騼鬏窃魩鮁鯝鯱鯴䱭鰠㝯𡯂鵉鰺"],
+["9aa1","黾噐鶓鶽鷀鷼银辶鹻麬麱麽黆铜黢黱黸竈齄𠂔𠊷𠎠椚铃妬𠓗塀铁㞹𠗕𠘕𠙶𡚺块煳𠫂𠫍𠮿呪吆𠯋咞𠯻𠰻𠱓𠱥𠱼惧𠲍噺𠲵𠳝𠳭𠵯𠶲𠷈楕鰯螥𠸄𠸎𠻗𠾐𠼭𠹳尠𠾼帋𡁜𡁏𡁶朞𡁻𡂈𡂖㙇𡂿𡃓𡄯𡄻卤蒭𡋣𡍵𡌶讁𡕷𡘙𡟃𡟇乸炻𡠭𡥪"],
+["9b40","𡨭𡩅𡰪𡱰𡲬𡻈拃𡻕𡼕熘桕𢁅槩㛈𢉼𢏗𢏺𢜪𢡱𢥏苽𢥧𢦓𢫕覥𢫨辠𢬎鞸𢬿顇骽𢱌"],
+["9b62","𢲈𢲷𥯨𢴈𢴒𢶷𢶕𢹂𢽴𢿌𣀳𣁦𣌟𣏞徱晈暿𧩹𣕧𣗳爁𤦺矗𣘚𣜖纇𠍆墵朎"],
+["9ba1","椘𣪧𧙗𥿢𣸑𣺹𧗾𢂚䣐䪸𤄙𨪚𤋮𤌍𤀻𤌴𤎖𤩅𠗊凒𠘑妟𡺨㮾𣳿𤐄𤓖垈𤙴㦛𤜯𨗨𩧉㝢𢇃譞𨭎駖𤠒𤣻𤨕爉𤫀𠱸奥𤺥𤾆𠝹軚𥀬劏圿煱𥊙𥐙𣽊𤪧喼𥑆𥑮𦭒釔㑳𥔿𧘲𥕞䜘𥕢𥕦𥟇𤤿𥡝偦㓻𣏌惞𥤃䝼𨥈𥪮𥮉𥰆𡶐垡煑澶𦄂𧰒遖𦆲𤾚譢𦐂𦑊"],
+["9c40","嵛𦯷輶𦒄𡤜諪𤧶𦒈𣿯𦔒䯀𦖿𦚵𢜛鑥𥟡憕娧晉侻嚹𤔡𦛼乪𤤴陖涏𦲽㘘襷𦞙𦡮𦐑𦡞營𦣇筂𩃀𠨑𦤦鄄𦤹穅鷰𦧺騦𦨭㙟𦑩𠀡禃𦨴𦭛崬𣔙菏𦮝䛐𦲤画补𦶮墶"],
+["9ca1","㜜𢖍𧁋𧇍㱔𧊀𧊅銁𢅺𧊋錰𧋦𤧐氹钟𧑐𠻸蠧裵𢤦𨑳𡞱溸𤨪𡠠㦤㚹尐秣䔿暶𩲭𩢤襃𧟌𧡘囖䃟𡘊㦡𣜯𨃨𡏅熭荦𧧝𩆨婧䲷𧂯𨦫𧧽𧨊𧬋𧵦𤅺筃祾𨀉澵𪋟樃𨌘厢𦸇鎿栶靝𨅯𨀣𦦵𡏭𣈯𨁈嶅𨰰𨂃圕頣𨥉嶫𤦈斾槕叒𤪥𣾁㰑朶𨂐𨃴𨄮𡾡𨅏"],
+["9d40","𨆉𨆯𨈚𨌆𨌯𨎊㗊𨑨𨚪䣺揦𨥖砈鉕𨦸䏲𨧧䏟𨧨𨭆𨯔姸𨰉輋𨿅𩃬筑𩄐𩄼㷷𩅞𤫊运犏嚋𩓧𩗩𩖰𩖸𩜲𩣑𩥉𩥪𩧃𩨨𩬎𩵚𩶛纟𩻸𩼣䲤镇𪊓熢𪋿䶑递𪗋䶜𠲜达嗁"],
+["9da1","辺𢒰边𤪓䔉繿潖檱仪㓤𨬬𧢝㜺躀𡟵𨀤𨭬𨮙𧨾𦚯㷫𧙕𣲷𥘵𥥖亚𥺁𦉘嚿𠹭踎孭𣺈𤲞揞拐𡟶𡡻攰嘭𥱊吚𥌑㷆𩶘䱽嘢嘞罉𥻘奵𣵀蝰东𠿪𠵉𣚺脗鵞贘瘻鱅癎瞹鍅吲腈苷嘥脲萘肽嗪祢噃吖𠺝㗎嘅嗱曱𨋢㘭甴嗰喺咗啲𠱁𠲖廐𥅈𠹶𢱢"],
+["9e40","𠺢麫絚嗞𡁵抝靭咔賍燶酶揼掹揾啩𢭃鱲𢺳冚㓟𠶧冧呍唞唓癦踭𦢊疱肶蠄螆裇膶萜𡃁䓬猄𤜆宐茋𦢓噻𢛴𧴯𤆣𧵳𦻐𧊶酰𡇙鈈𣳼𪚩𠺬𠻹牦𡲢䝎𤿂𧿹𠿫䃺"],
+["9ea1","鱝攟𢶠䣳𤟠𩵼𠿬𠸊恢𧖣𠿭"],
+["9ead","𦁈𡆇熣纎鵐业丄㕷嬍沲卧㚬㧜卽㚥𤘘墚𤭮舭呋垪𥪕𠥹"],
+["9ec5","㩒𢑥獴𩺬䴉鯭𣳾𩼰䱛𤾩𩖞𩿞葜𣶶𧊲𦞳𣜠挮紥𣻷𣸬㨪逈勌㹴㙺䗩𠒎癀嫰𠺶硺𧼮墧䂿噼鮋嵴癔𪐴麅䳡痹㟻愙𣃚𤏲"],
+["9ef5","噝𡊩垧𤥣𩸆刴𧂮㖭汊鵼"],
+["9f40","籖鬹埞𡝬屓擓𩓐𦌵𧅤蚭𠴨𦴢𤫢𠵱"],
+["9f4f","凾𡼏嶎霃𡷑麁遌笟鬂峑箣扨挵髿篏鬪籾鬮籂粆鰕篼鬉鼗鰛𤤾齚啳寃俽麘俲剠㸆勑坧偖妷帒韈鶫轜呩鞴饀鞺匬愰"],
+["9fa1","椬叚鰊鴂䰻陁榀傦畆𡝭駚剳"],
+["9fae","酙隁酜"],
+["9fb2","酑𨺗捿𦴣櫊嘑醎畺抅𠏼獏籰𥰡𣳽"],
+["9fc1","𤤙盖鮝个𠳔莾衂"],
+["9fc9","届槀僭坺刟巵从氱𠇲伹咜哚劚趂㗾弌㗳"],
+["9fdb","歒酼龥鮗頮颴骺麨麄煺笔"],
+["9fe7","毺蠘罸"],
+["9feb","嘠𪙊蹷齓"],
+["9ff0","跔蹏鸜踁抂𨍽踨蹵竓𤩷稾磘泪詧瘇"],
+["a040","𨩚鼦泎蟖痃𪊲硓咢贌狢獱謭猂瓱賫𤪻蘯徺袠䒷"],
+["a055","𡠻𦸅"],
+["a058","詾𢔛"],
+["a05b","惽癧髗鵄鍮鮏蟵"],
+["a063","蠏賷猬霡鮰㗖犲䰇籑饊𦅙慙䰄麖慽"],
+["a073","坟慯抦戹拎㩜懢厪𣏵捤栂㗒"],
+["a0a1","嵗𨯂迚𨸹"],
+["a0a6","僙𡵆礆匲阸𠼻䁥"],
+["a0ae","矾"],
+["a0b0","糂𥼚糚稭聦聣絍甅瓲覔舚朌聢𧒆聛瓰脃眤覉𦟌畓𦻑螩蟎臈螌詉貭譃眫瓸蓚㘵榲趦"],
+["a0d4","覩瑨涹蟁𤀑瓧㷛煶悤憜㳑煢恷"],
+["a0e2","罱𨬭牐惩䭾删㰘𣳇𥻗𧙖𥔱𡥄𡋾𩤃𦷜𧂭峁𦆭𨨏𣙷𠃮𦡆𤼎䕢嬟𦍌齐麦𦉫"],
+["a3c0","␀",31,"␡"],
+["c6a1","①",9,"⑴",9,"ⅰ",9,"丶丿亅亠冂冖冫勹匸卩厶夊宀巛⼳广廴彐彡攴无疒癶辵隶¨ˆヽヾゝゞ〃仝々〆〇ー［］✽ぁ",23],
+["c740","す",58,"ァアィイ"],
+["c7a1","ゥ",81,"А",5,"ЁЖ",4],
+["c840","Л",26,"ёж",25,"⇧↸↹㇏𠃌乚𠂊刂䒑"],
+["c8a1","龰冈龱𧘇"],
+["c8cd","￢￤＇＂㈱№℡゛゜⺀⺄⺆⺇⺈⺊⺌⺍⺕⺜⺝⺥⺧⺪⺬⺮⺶⺼⺾⻆⻊⻌⻍⻏⻖⻗⻞⻣"],
+["c8f5","ʃɐɛɔɵœøŋʊɪ"],
+["f9fe","￭"],
+["fa40","𠕇鋛𠗟𣿅蕌䊵珯况㙉𤥂𨧤鍄𡧛苮𣳈砼杄拟𤤳𨦪𠊠𦮳𡌅侫𢓭倈𦴩𧪄𣘀𤪱𢔓倩𠍾徤𠎀𠍇滛𠐟偽儁㑺儎顬㝃萖𤦤𠒇兠𣎴兪𠯿𢃼𠋥𢔰𠖎𣈳𡦃宂蝽𠖳𣲙冲冸"],
+["faa1","鴴凉减凑㳜凓𤪦决凢卂凭菍椾𣜭彻刋刦刼劵剗劔効勅簕蕂勠蘍𦬓包𨫞啉滙𣾀𠥔𣿬匳卄𠯢泋𡜦栛珕恊㺪㣌𡛨燝䒢卭却𨚫卾卿𡖖𡘓矦厓𨪛厠厫厮玧𥝲㽙玜叁叅汉义埾叙㪫𠮏叠𣿫𢶣叶𠱷吓灹唫晗浛呭𦭓𠵴啝咏咤䞦𡜍𠻝㶴𠵍"],
+["fb40","𨦼𢚘啇䳭启琗喆喩嘅𡣗𤀺䕒𤐵暳𡂴嘷曍𣊊暤暭噍噏磱囱鞇叾圀囯园𨭦㘣𡉏坆𤆥汮炋坂㚱𦱾埦𡐖堃𡑔𤍣堦𤯵塜墪㕡壠壜𡈼壻寿坃𪅐𤉸鏓㖡够梦㛃湙"],
+["fba1","𡘾娤啓𡚒蔅姉𠵎𦲁𦴪𡟜姙𡟻𡞲𦶦浱𡠨𡛕姹𦹅媫婣㛦𤦩婷㜈媖瑥嫓𦾡𢕔㶅𡤑㜲𡚸広勐孶斈孼𧨎䀄䡝𠈄寕慠𡨴𥧌𠖥寳宝䴐尅𡭄尓珎尔𡲥𦬨屉䣝岅峩峯嶋𡷹𡸷崐崘嵆𡺤岺巗苼㠭𤤁𢁉𢅳芇㠶㯂帮檊幵幺𤒼𠳓厦亷廐厨𡝱帉廴𨒂"],
+["fc40","廹廻㢠廼栾鐛弍𠇁弢㫞䢮𡌺强𦢈𢏐彘𢑱彣鞽𦹮彲鍀𨨶徧嶶㵟𥉐𡽪𧃸𢙨釖𠊞𨨩怱暅𡡷㥣㷇㘹垐𢞴祱㹀悞悤悳𤦂𤦏𧩓璤僡媠慤萤慂慈𦻒憁凴𠙖憇宪𣾷"],
+["fca1","𢡟懓𨮝𩥝懐㤲𢦀𢣁怣慜攞掋𠄘担𡝰拕𢸍捬𤧟㨗搸揸𡎎𡟼撐澊𢸶頔𤂌𥜝擡擥鑻㩦携㩗敍漖𤨨𤨣斅敭敟𣁾斵𤥀䬷旑䃘𡠩无旣忟𣐀昘𣇷𣇸晄𣆤𣆥晋𠹵晧𥇦晳晴𡸽𣈱𨗴𣇈𥌓矅𢣷馤朂𤎜𤨡㬫槺𣟂杞杧杢𤇍𩃭柗䓩栢湐鈼栁𣏦𦶠桝"],
+["fd40","𣑯槡樋𨫟楳棃𣗍椁椀㴲㨁𣘼㮀枬楡𨩊䋼椶榘㮡𠏉荣傐槹𣙙𢄪橅𣜃檝㯳枱櫈𩆜㰍欝𠤣惞欵歴𢟍溵𣫛𠎵𡥘㝀吡𣭚毡𣻼毜氷𢒋𤣱𦭑汚舦汹𣶼䓅𣶽𤆤𤤌𤤀"],
+["fda1","𣳉㛥㳫𠴲鮃𣇹𢒑羏样𦴥𦶡𦷫涖浜湼漄𤥿𤂅𦹲蔳𦽴凇沜渝萮𨬡港𣸯瑓𣾂秌湏媑𣁋濸㜍澝𣸰滺𡒗𤀽䕕鏰潄潜㵎潴𩅰㴻澟𤅄濓𤂑𤅕𤀹𣿰𣾴𤄿凟𤅖𤅗𤅀𦇝灋灾炧炁烌烕烖烟䄄㷨熴熖𤉷焫煅媈煊煮岜𤍥煏鍢𤋁焬𤑚𤨧𤨢熺𨯨炽爎"],
+["fe40","鑂爕夑鑃爤鍁𥘅爮牀𤥴梽牕牗㹕𣁄栍漽犂猪猫𤠣𨠫䣭𨠄猨献珏玪𠰺𦨮珉瑉𤇢𡛧𤨤昣㛅𤦷𤦍𤧻珷琕椃𤨦琹𠗃㻗瑜𢢭瑠𨺲瑇珤瑶莹瑬㜰瑴鏱樬璂䥓𤪌"],
+["fea1","𤅟𤩹𨮏孆𨰃𡢞瓈𡦈甎瓩甞𨻙𡩋寗𨺬鎅畍畊畧畮𤾂㼄𤴓疎瑝疞疴瘂瘬癑癏癯癶𦏵皐臯㟸𦤑𦤎皡皥皷盌𦾟葢𥂝𥅽𡸜眞眦着撯𥈠睘𣊬瞯𨥤𨥨𡛁矴砉𡍶𤨒棊碯磇磓隥礮𥗠磗礴碱𧘌辸袄𨬫𦂃𢘜禆褀椂禀𥡗禝𧬹礼禩渪𧄦㺨秆𩄍秔"]
+]
diff --git a/backend/node_modules/iconv-lite/encodings/tables/cp936.json b/backend/node_modules/iconv-lite/encodings/tables/cp936.json
new file mode 100644
index 0000000..49ddb9a
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/tables/cp936.json
@@ -0,0 +1,264 @@
+[
+["0","\u0000",127,"€"],
+["8140","丂丄丅丆丏丒丗丟丠両丣並丩丮丯丱丳丵丷丼乀乁乂乄乆乊乑乕乗乚乛乢乣乤乥乧乨乪",5,"乲乴",9,"乿",6,"亇亊"],
+["8180","亐亖亗亙亜亝亞亣亪亯亰亱亴亶亷亸亹亼亽亾仈仌仏仐仒仚仛仜仠仢仦仧仩仭仮仯仱仴仸仹仺仼仾伀伂",6,"伋伌伒",4,"伜伝伡伣伨伩伬伭伮伱伳伵伷伹伻伾",4,"佄佅佇",5,"佒佔佖佡佢佦佨佪佫佭佮佱佲併佷佸佹佺佽侀侁侂侅來侇侊侌侎侐侒侓侕侖侘侙侚侜侞侟価侢"],
+["8240","侤侫侭侰",4,"侶",8,"俀俁係俆俇俈俉俋俌俍俒",4,"俙俛俠俢俤俥俧俫俬俰俲俴俵俶俷俹俻俼俽俿",11],
+["8280","個倎倐們倓倕倖倗倛倝倞倠倢倣値倧倫倯",10,"倻倽倿偀偁偂偄偅偆偉偊偋偍偐",4,"偖偗偘偙偛偝",7,"偦",5,"偭",8,"偸偹偺偼偽傁傂傃傄傆傇傉傊傋傌傎",20,"傤傦傪傫傭",4,"傳",6,"傼"],
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+]
diff --git a/backend/node_modules/iconv-lite/encodings/tables/cp949.json b/backend/node_modules/iconv-lite/encodings/tables/cp949.json
new file mode 100644
index 0000000..2022a00
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/tables/cp949.json
@@ -0,0 +1,273 @@
+[
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+["ba41","튍튎튏튒튓튔튖",5,"튝튞튟튡튢튣튥",6,"튭"],
+["ba61","튮튯튰튲",5,"튺튻튽튾틁틃",4,"틊틌",5],
+["ba81","틒틓틕틖틗틙틚틛틝",6,"틦",9,"틲틳틵틶틷틹틺벙벚베벡벤벧벨벰벱벳벴벵벼벽변별볍볏볐병볕볘볜보복볶본볼봄봅봇봉봐봔봤봬뵀뵈뵉뵌뵐뵘뵙뵤뵨부북분붇불붉붊붐붑붓붕붙붚붜붤붰붸뷔뷕뷘뷜뷩뷰뷴뷸븀븃븅브븍븐블븜븝븟비빅빈빌빎빔빕빗빙빚빛빠빡빤"],
+["bb41","틻",4,"팂팄팆",5,"팏팑팒팓팕팗",4,"팞팢팣"],
+["bb61","팤팦팧팪팫팭팮팯팱",6,"팺팾",5,"퍆퍇퍈퍉"],
+["bb81","퍊",31,"빨빪빰빱빳빴빵빻빼빽뺀뺄뺌뺍뺏뺐뺑뺘뺙뺨뻐뻑뻔뻗뻘뻠뻣뻤뻥뻬뼁뼈뼉뼘뼙뼛뼜뼝뽀뽁뽄뽈뽐뽑뽕뾔뾰뿅뿌뿍뿐뿔뿜뿟뿡쀼쁑쁘쁜쁠쁨쁩삐삑삔삘삠삡삣삥사삭삯산삳살삵삶삼삽삿샀상샅새색샌샐샘샙샛샜생샤"],
+["bc41","퍪",17,"퍾퍿펁펂펃펅펆펇"],
+["bc61","펈펉펊펋펎펒",5,"펚펛펝펞펟펡",6,"펪펬펮"],
+["bc81","펯",4,"펵펶펷펹펺펻펽",6,"폆폇폊",5,"폑",5,"샥샨샬샴샵샷샹섀섄섈섐섕서",4,"섣설섦섧섬섭섯섰성섶세섹센셀셈셉셋셌셍셔셕션셜셤셥셧셨셩셰셴셸솅소속솎손솔솖솜솝솟송솥솨솩솬솰솽쇄쇈쇌쇔쇗쇘쇠쇤쇨쇰쇱쇳쇼쇽숀숄숌숍숏숑수숙순숟술숨숩숫숭"],
+["bd41","폗폙",7,"폢폤",7,"폮폯폱폲폳폵폶폷"],
+["bd61","폸폹폺폻폾퐀퐂",5,"퐉",13],
+["bd81","퐗",5,"퐞",25,"숯숱숲숴쉈쉐쉑쉔쉘쉠쉥쉬쉭쉰쉴쉼쉽쉿슁슈슉슐슘슛슝스슥슨슬슭슴습슷승시식신싣실싫심십싯싱싶싸싹싻싼쌀쌈쌉쌌쌍쌓쌔쌕쌘쌜쌤쌥쌨쌩썅써썩썬썰썲썸썹썼썽쎄쎈쎌쏀쏘쏙쏜쏟쏠쏢쏨쏩쏭쏴쏵쏸쐈쐐쐤쐬쐰"],
+["be41","퐸",7,"푁푂푃푅",14],
+["be61","푔",7,"푝푞푟푡푢푣푥",7,"푮푰푱푲"],
+["be81","푳",4,"푺푻푽푾풁풃",4,"풊풌풎",5,"풕",8,"쐴쐼쐽쑈쑤쑥쑨쑬쑴쑵쑹쒀쒔쒜쒸쒼쓩쓰쓱쓴쓸쓺쓿씀씁씌씐씔씜씨씩씬씰씸씹씻씽아악안앉않알앍앎앓암압앗았앙앝앞애액앤앨앰앱앳앴앵야약얀얄얇얌얍얏양얕얗얘얜얠얩어억언얹얻얼얽얾엄",6,"엌엎"],
+["bf41","풞",10,"풪",14],
+["bf61","풹",18,"퓍퓎퓏퓑퓒퓓퓕"],
+["bf81","퓖",5,"퓝퓞퓠",7,"퓩퓪퓫퓭퓮퓯퓱",6,"퓹퓺퓼에엑엔엘엠엡엣엥여역엮연열엶엷염",5,"옅옆옇예옌옐옘옙옛옜오옥온올옭옮옰옳옴옵옷옹옻와왁완왈왐왑왓왔왕왜왝왠왬왯왱외왹왼욀욈욉욋욍요욕욘욜욤욥욧용우욱운울욹욺움웁웃웅워웍원월웜웝웠웡웨"],
+["c041","퓾",5,"픅픆픇픉픊픋픍",6,"픖픘",5],
+["c061","픞",25],
+["c081","픸픹픺픻픾픿핁핂핃핅",6,"핎핐핒",5,"핚핛핝핞핟핡핢핣웩웬웰웸웹웽위윅윈윌윔윕윗윙유육윤율윰윱윳융윷으윽은을읊음읍읏응",7,"읜읠읨읫이익인일읽읾잃임입잇있잉잊잎자작잔잖잗잘잚잠잡잣잤장잦재잭잰잴잼잽잿쟀쟁쟈쟉쟌쟎쟐쟘쟝쟤쟨쟬저적전절젊"],
+["c141","핤핦핧핪핬핮",5,"핶핷핹핺핻핽",6,"햆햊햋"],
+["c161","햌햍햎햏햑",19,"햦햧"],
+["c181","햨",31,"점접젓정젖제젝젠젤젬젭젯젱져젼졀졈졉졌졍졔조족존졸졺좀좁좃종좆좇좋좌좍좔좝좟좡좨좼좽죄죈죌죔죕죗죙죠죡죤죵주죽준줄줅줆줌줍줏중줘줬줴쥐쥑쥔쥘쥠쥡쥣쥬쥰쥴쥼즈즉즌즐즘즙즛증지직진짇질짊짐집짓"],
+["c241","헊헋헍헎헏헑헓",4,"헚헜헞",5,"헦헧헩헪헫헭헮"],
+["c261","헯",4,"헶헸헺",5,"혂혃혅혆혇혉",6,"혒"],
+["c281","혖",5,"혝혞혟혡혢혣혥",7,"혮",9,"혺혻징짖짙짚짜짝짠짢짤짧짬짭짯짰짱째짹짼쨀쨈쨉쨋쨌쨍쨔쨘쨩쩌쩍쩐쩔쩜쩝쩟쩠쩡쩨쩽쪄쪘쪼쪽쫀쫄쫌쫍쫏쫑쫓쫘쫙쫠쫬쫴쬈쬐쬔쬘쬠쬡쭁쭈쭉쭌쭐쭘쭙쭝쭤쭸쭹쮜쮸쯔쯤쯧쯩찌찍찐찔찜찝찡찢찧차착찬찮찰참찹찻"],
+["c341","혽혾혿홁홂홃홄홆홇홊홌홎홏홐홒홓홖홗홙홚홛홝",4],
+["c361","홢",4,"홨홪",5,"홲홳홵",11],
+["c381","횁횂횄횆",5,"횎횏횑횒횓횕",7,"횞횠횢",5,"횩횪찼창찾채책챈챌챔챕챗챘챙챠챤챦챨챰챵처척천철첨첩첫첬청체첵첸첼쳄쳅쳇쳉쳐쳔쳤쳬쳰촁초촉촌촐촘촙촛총촤촨촬촹최쵠쵤쵬쵭쵯쵱쵸춈추축춘출춤춥춧충춰췄췌췐취췬췰췸췹췻췽츄츈츌츔츙츠측츤츨츰츱츳층"],
+["c441","횫횭횮횯횱",7,"횺횼",7,"훆훇훉훊훋"],
+["c461","훍훎훏훐훒훓훕훖훘훚",5,"훡훢훣훥훦훧훩",4],
+["c481","훮훯훱훲훳훴훶",5,"훾훿휁휂휃휅",11,"휒휓휔치칙친칟칠칡침칩칫칭카칵칸칼캄캅캇캉캐캑캔캘캠캡캣캤캥캬캭컁커컥컨컫컬컴컵컷컸컹케켁켄켈켐켑켓켕켜켠켤켬켭켯켰켱켸코콕콘콜콤콥콧콩콰콱콴콸쾀쾅쾌쾡쾨쾰쿄쿠쿡쿤쿨쿰쿱쿳쿵쿼퀀퀄퀑퀘퀭퀴퀵퀸퀼"],
+["c541","휕휖휗휚휛휝휞휟휡",6,"휪휬휮",5,"휶휷휹"],
+["c561","휺휻휽",6,"흅흆흈흊",5,"흒흓흕흚",4],
+["c581","흟흢흤흦흧흨흪흫흭흮흯흱흲흳흵",6,"흾흿힀힂",5,"힊힋큄큅큇큉큐큔큘큠크큭큰클큼큽킁키킥킨킬킴킵킷킹타탁탄탈탉탐탑탓탔탕태택탠탤탬탭탯탰탱탸턍터턱턴털턺텀텁텃텄텅테텍텐텔템텝텟텡텨텬텼톄톈토톡톤톨톰톱톳통톺톼퇀퇘퇴퇸툇툉툐투툭툰툴툼툽툿퉁퉈퉜"],
+["c641","힍힎힏힑",6,"힚힜힞",5],
+["c6a1","퉤튀튁튄튈튐튑튕튜튠튤튬튱트특튼튿틀틂틈틉틋틔틘틜틤틥티틱틴틸팀팁팃팅파팍팎판팔팖팜팝팟팠팡팥패팩팬팰팸팹팻팼팽퍄퍅퍼퍽펀펄펌펍펏펐펑페펙펜펠펨펩펫펭펴편펼폄폅폈평폐폘폡폣포폭폰폴폼폽폿퐁"],
+["c7a1","퐈퐝푀푄표푠푤푭푯푸푹푼푿풀풂품풉풋풍풔풩퓌퓐퓔퓜퓟퓨퓬퓰퓸퓻퓽프픈플픔픕픗피픽핀필핌핍핏핑하학한할핥함합핫항해핵핸핼햄햅햇했행햐향허헉헌헐헒험헙헛헝헤헥헨헬헴헵헷헹혀혁현혈혐협혓혔형혜혠"],
+["c8a1","혤혭호혹혼홀홅홈홉홋홍홑화확환활홧황홰홱홴횃횅회획횐횔횝횟횡효횬횰횹횻후훅훈훌훑훔훗훙훠훤훨훰훵훼훽휀휄휑휘휙휜휠휨휩휫휭휴휵휸휼흄흇흉흐흑흔흖흗흘흙흠흡흣흥흩희흰흴흼흽힁히힉힌힐힘힙힛힝"],
+["caa1","伽佳假價加可呵哥嘉嫁家暇架枷柯歌珂痂稼苛茄街袈訶賈跏軻迦駕刻却各恪慤殼珏脚覺角閣侃刊墾奸姦干幹懇揀杆柬桿澗癎看磵稈竿簡肝艮艱諫間乫喝曷渴碣竭葛褐蝎鞨勘坎堪嵌感憾戡敢柑橄減甘疳監瞰紺邯鑑鑒龕"],
+["cba1","匣岬甲胛鉀閘剛堈姜岡崗康强彊慷江畺疆糠絳綱羌腔舡薑襁講鋼降鱇介价個凱塏愷愾慨改槪漑疥皆盖箇芥蓋豈鎧開喀客坑更粳羹醵倨去居巨拒据據擧渠炬祛距踞車遽鉅鋸乾件健巾建愆楗腱虔蹇鍵騫乞傑杰桀儉劍劒檢"],
+["cca1","瞼鈐黔劫怯迲偈憩揭擊格檄激膈覡隔堅牽犬甄絹繭肩見譴遣鵑抉決潔結缺訣兼慊箝謙鉗鎌京俓倞傾儆勁勍卿坰境庚徑慶憬擎敬景暻更梗涇炅烱璟璥瓊痙硬磬竟競絅經耕耿脛莖警輕逕鏡頃頸驚鯨係啓堺契季屆悸戒桂械"],
+["cda1","棨溪界癸磎稽系繫繼計誡谿階鷄古叩告呱固姑孤尻庫拷攷故敲暠枯槁沽痼皐睾稿羔考股膏苦苽菰藁蠱袴誥賈辜錮雇顧高鼓哭斛曲梏穀谷鵠困坤崑昆梱棍滾琨袞鯤汨滑骨供公共功孔工恐恭拱控攻珙空蚣貢鞏串寡戈果瓜"],
+["cea1","科菓誇課跨過鍋顆廓槨藿郭串冠官寬慣棺款灌琯瓘管罐菅觀貫關館刮恝括适侊光匡壙廣曠洸炚狂珖筐胱鑛卦掛罫乖傀塊壞怪愧拐槐魁宏紘肱轟交僑咬喬嬌嶠巧攪敎校橋狡皎矯絞翹膠蕎蛟較轎郊餃驕鮫丘久九仇俱具勾"],
+["cfa1","區口句咎嘔坵垢寇嶇廐懼拘救枸柩構歐毆毬求溝灸狗玖球瞿矩究絿耉臼舅舊苟衢謳購軀逑邱鉤銶駒驅鳩鷗龜國局菊鞠鞫麴君窘群裙軍郡堀屈掘窟宮弓穹窮芎躬倦券勸卷圈拳捲權淃眷厥獗蕨蹶闕机櫃潰詭軌饋句晷歸貴"],
+["d0a1","鬼龜叫圭奎揆槻珪硅窺竅糾葵規赳逵閨勻均畇筠菌鈞龜橘克剋劇戟棘極隙僅劤勤懃斤根槿瑾筋芹菫覲謹近饉契今妗擒昑檎琴禁禽芩衾衿襟金錦伋及急扱汲級給亘兢矜肯企伎其冀嗜器圻基埼夔奇妓寄岐崎己幾忌技旗旣"],
+["d1a1","朞期杞棋棄機欺氣汽沂淇玘琦琪璂璣畸畿碁磯祁祇祈祺箕紀綺羈耆耭肌記譏豈起錡錤飢饑騎騏驥麒緊佶吉拮桔金喫儺喇奈娜懦懶拏拿癩",5,"那樂",4,"諾酪駱亂卵暖欄煖爛蘭難鸞捏捺南嵐枏楠湳濫男藍襤拉"],
+["d2a1","納臘蠟衲囊娘廊",4,"乃來內奈柰耐冷女年撚秊念恬拈捻寧寗努勞奴弩怒擄櫓爐瑙盧",5,"駑魯",10,"濃籠聾膿農惱牢磊腦賂雷尿壘",7,"嫩訥杻紐勒",5,"能菱陵尼泥匿溺多茶"],
+["d3a1","丹亶但單團壇彖斷旦檀段湍短端簞緞蛋袒鄲鍛撻澾獺疸達啖坍憺擔曇淡湛潭澹痰聃膽蕁覃談譚錟沓畓答踏遝唐堂塘幢戇撞棠當糖螳黨代垈坮大對岱帶待戴擡玳臺袋貸隊黛宅德悳倒刀到圖堵塗導屠島嶋度徒悼挑掉搗桃"],
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+["e6a1","旅歟汝濾璵礖礪與艅茹輿轝閭餘驪麗黎亦力域役易曆歷疫繹譯轢逆驛嚥堧姸娟宴年延憐戀捐挻撚椽沇沿涎涓淵演漣烟然煙煉燃燕璉硏硯秊筵緣練縯聯衍軟輦蓮連鉛鍊鳶列劣咽悅涅烈熱裂說閱厭廉念捻染殮炎焰琰艶苒"],
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+["eea1","障再哉在宰才材栽梓渽滓災縡裁財載齋齎爭箏諍錚佇低儲咀姐底抵杵楮樗沮渚狙猪疽箸紵苧菹著藷詛貯躇這邸雎齟勣吊嫡寂摘敵滴狄炙的積笛籍績翟荻謫賊赤跡蹟迪迹適鏑佃佺傳全典前剪塡塼奠專展廛悛戰栓殿氈澱"],
+["efa1","煎琠田甸畑癲筌箋箭篆纏詮輾轉鈿銓錢鐫電顚顫餞切截折浙癤竊節絶占岾店漸点粘霑鮎點接摺蝶丁井亭停偵呈姃定幀庭廷征情挺政整旌晶晸柾楨檉正汀淀淨渟湞瀞炡玎珽町睛碇禎程穽精綎艇訂諪貞鄭酊釘鉦鋌錠霆靖"],
+["f0a1","靜頂鼎制劑啼堤帝弟悌提梯濟祭第臍薺製諸蹄醍除際霽題齊俎兆凋助嘲弔彫措操早晁曺曹朝條棗槽漕潮照燥爪璪眺祖祚租稠窕粗糟組繰肇藻蚤詔調趙躁造遭釣阻雕鳥族簇足鏃存尊卒拙猝倧宗從悰慫棕淙琮種終綜縱腫"],
+["f1a1","踪踵鍾鐘佐坐左座挫罪主住侏做姝胄呪周嗾奏宙州廚晝朱柱株注洲湊澍炷珠疇籌紂紬綢舟蛛註誅走躊輳週酎酒鑄駐竹粥俊儁准埈寯峻晙樽浚準濬焌畯竣蠢逡遵雋駿茁中仲衆重卽櫛楫汁葺增憎曾拯烝甑症繒蒸證贈之只"],
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+["f3a1","鏶集徵懲澄且侘借叉嗟嵯差次此磋箚茶蹉車遮捉搾着窄錯鑿齪撰澯燦璨瓚竄簒纂粲纘讚贊鑽餐饌刹察擦札紮僭參塹慘慙懺斬站讒讖倉倡創唱娼廠彰愴敞昌昶暢槍滄漲猖瘡窓脹艙菖蒼債埰寀寨彩採砦綵菜蔡采釵冊柵策"],
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diff --git a/backend/node_modules/iconv-lite/encodings/tables/cp950.json b/backend/node_modules/iconv-lite/encodings/tables/cp950.json
new file mode 100644
index 0000000..d8bc871
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/tables/cp950.json
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+["c940","乂乜凵匚厂万丌乇亍囗兀屮彳丏冇与丮亓仂仉仈冘勼卬厹圠夃夬尐巿旡殳毌气爿丱丼仨仜仩仡仝仚刌匜卌圢圣夗夯宁宄尒尻屴屳帄庀庂忉戉扐氕"],
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+["dfa1","腄腡舝艉艄艀艂艅蓱萿葖葶葹蒏蒍葥葑葀蒆葧萰葍葽葚葙葴葳葝蔇葞萷萺萴葺葃葸萲葅萩菙葋萯葂萭葟葰萹葎葌葒葯蓅蒎萻葇萶萳葨葾葄萫葠葔葮葐蜋蜄蛷蜌蛺蛖蛵蝍蛸蜎蜉蜁蛶蜍蜅裖裋裍裎裞裛裚裌裐覅覛觟觥觤"],
+["e040","觡觠觢觜触詶誆詿詡訿詷誂誄詵誃誁詴詺谼豋豊豥豤豦貆貄貅賌赨赩趑趌趎趏趍趓趔趐趒跰跠跬跱跮跐跩跣跢跧跲跫跴輆軿輁輀輅輇輈輂輋遒逿"],
+["e0a1","遄遉逽鄐鄍鄏鄑鄖鄔鄋鄎酮酯鉈鉒鈰鈺鉦鈳鉥鉞銃鈮鉊鉆鉭鉬鉏鉠鉧鉯鈶鉡鉰鈱鉔鉣鉐鉲鉎鉓鉌鉖鈲閟閜閞閛隒隓隑隗雎雺雽雸雵靳靷靸靲頏頍頎颬飶飹馯馲馰馵骭骫魛鳪鳭鳧麀黽僦僔僗僨僳僛僪僝僤僓僬僰僯僣僠"],
+["e140","凘劀劁勩勫匰厬嘧嘕嘌嘒嗼嘏嘜嘁嘓嘂嗺嘝嘄嗿嗹墉塼墐墘墆墁塿塴墋塺墇墑墎塶墂墈塻墔墏壾奫嫜嫮嫥嫕嫪嫚嫭嫫嫳嫢嫠嫛嫬嫞嫝嫙嫨嫟孷寠"],
+["e1a1","寣屣嶂嶀嵽嶆嵺嶁嵷嶊嶉嶈嵾嵼嶍嵹嵿幘幙幓廘廑廗廎廜廕廙廒廔彄彃彯徶愬愨慁慞慱慳慒慓慲慬憀慴慔慺慛慥愻慪慡慖戩戧戫搫摍摛摝摴摶摲摳摽摵摦撦摎撂摞摜摋摓摠摐摿搿摬摫摙摥摷敳斠暡暠暟朅朄朢榱榶槉"],
+["e240","榠槎榖榰榬榼榑榙榎榧榍榩榾榯榿槄榽榤槔榹槊榚槏榳榓榪榡榞槙榗榐槂榵榥槆歊歍歋殞殟殠毃毄毾滎滵滱漃漥滸漷滻漮漉潎漙漚漧漘漻漒滭漊"],
+["e2a1","漶潳滹滮漭潀漰漼漵滫漇漎潃漅滽滶漹漜滼漺漟漍漞漈漡熇熐熉熀熅熂熏煻熆熁熗牄牓犗犕犓獃獍獑獌瑢瑳瑱瑵瑲瑧瑮甀甂甃畽疐瘖瘈瘌瘕瘑瘊瘔皸瞁睼瞅瞂睮瞀睯睾瞃碲碪碴碭碨硾碫碞碥碠碬碢碤禘禊禋禖禕禔禓"],
+["e340","禗禈禒禐稫穊稰稯稨稦窨窫窬竮箈箜箊箑箐箖箍箌箛箎箅箘劄箙箤箂粻粿粼粺綧綷緂綣綪緁緀緅綝緎緄緆緋緌綯綹綖綼綟綦綮綩綡緉罳翢翣翥翞"],
+["e3a1","耤聝聜膉膆膃膇膍膌膋舕蒗蒤蒡蒟蒺蓎蓂蒬蒮蒫蒹蒴蓁蓍蒪蒚蒱蓐蒝蒧蒻蒢蒔蓇蓌蒛蒩蒯蒨蓖蒘蒶蓏蒠蓗蓔蓒蓛蒰蒑虡蜳蜣蜨蝫蝀蜮蜞蜡蜙蜛蝃蜬蝁蜾蝆蜠蜲蜪蜭蜼蜒蜺蜱蜵蝂蜦蜧蜸蜤蜚蜰蜑裷裧裱裲裺裾裮裼裶裻"],
+["e440","裰裬裫覝覡覟覞觩觫觨誫誙誋誒誏誖谽豨豩賕賏賗趖踉踂跿踍跽踊踃踇踆踅跾踀踄輐輑輎輍鄣鄜鄠鄢鄟鄝鄚鄤鄡鄛酺酲酹酳銥銤鉶銛鉺銠銔銪銍"],
+["e4a1","銦銚銫鉹銗鉿銣鋮銎銂銕銢鉽銈銡銊銆銌銙銧鉾銇銩銝銋鈭隞隡雿靘靽靺靾鞃鞀鞂靻鞄鞁靿韎韍頖颭颮餂餀餇馝馜駃馹馻馺駂馽駇骱髣髧鬾鬿魠魡魟鳱鳲鳵麧僿儃儰僸儆儇僶僾儋儌僽儊劋劌勱勯噈噂噌嘵噁噊噉噆噘"],
+["e540","噚噀嘳嘽嘬嘾嘸嘪嘺圚墫墝墱墠墣墯墬墥墡壿嫿嫴嫽嫷嫶嬃嫸嬂嫹嬁嬇嬅嬏屧嶙嶗嶟嶒嶢嶓嶕嶠嶜嶡嶚嶞幩幝幠幜緳廛廞廡彉徲憋憃慹憱憰憢憉"],
+["e5a1","憛憓憯憭憟憒憪憡憍慦憳戭摮摰撖撠撅撗撜撏撋撊撌撣撟摨撱撘敶敺敹敻斲斳暵暰暩暲暷暪暯樀樆樗槥槸樕槱槤樠槿槬槢樛樝槾樧槲槮樔槷槧橀樈槦槻樍槼槫樉樄樘樥樏槶樦樇槴樖歑殥殣殢殦氁氀毿氂潁漦潾澇濆澒"],
+["e640","澍澉澌潢潏澅潚澖潶潬澂潕潲潒潐潗澔澓潝漀潡潫潽潧澐潓澋潩潿澕潣潷潪潻熲熯熛熰熠熚熩熵熝熥熞熤熡熪熜熧熳犘犚獘獒獞獟獠獝獛獡獚獙"],
+["e6a1","獢璇璉璊璆璁瑽璅璈瑼瑹甈甇畾瘥瘞瘙瘝瘜瘣瘚瘨瘛皜皝皞皛瞍瞏瞉瞈磍碻磏磌磑磎磔磈磃磄磉禚禡禠禜禢禛歶稹窲窴窳箷篋箾箬篎箯箹篊箵糅糈糌糋緷緛緪緧緗緡縃緺緦緶緱緰緮緟罶羬羰羭翭翫翪翬翦翨聤聧膣膟"],
+["e740","膞膕膢膙膗舖艏艓艒艐艎艑蔤蔻蔏蔀蔩蔎蔉蔍蔟蔊蔧蔜蓻蔫蓺蔈蔌蓴蔪蓲蔕蓷蓫蓳蓼蔒蓪蓩蔖蓾蔨蔝蔮蔂蓽蔞蓶蔱蔦蓧蓨蓰蓯蓹蔘蔠蔰蔋蔙蔯虢"],
+["e7a1","蝖蝣蝤蝷蟡蝳蝘蝔蝛蝒蝡蝚蝑蝞蝭蝪蝐蝎蝟蝝蝯蝬蝺蝮蝜蝥蝏蝻蝵蝢蝧蝩衚褅褌褔褋褗褘褙褆褖褑褎褉覢覤覣觭觰觬諏諆誸諓諑諔諕誻諗誾諀諅諘諃誺誽諙谾豍貏賥賟賙賨賚賝賧趠趜趡趛踠踣踥踤踮踕踛踖踑踙踦踧"],
+["e840","踔踒踘踓踜踗踚輬輤輘輚輠輣輖輗遳遰遯遧遫鄯鄫鄩鄪鄲鄦鄮醅醆醊醁醂醄醀鋐鋃鋄鋀鋙銶鋏鋱鋟鋘鋩鋗鋝鋌鋯鋂鋨鋊鋈鋎鋦鋍鋕鋉鋠鋞鋧鋑鋓"],
+["e8a1","銵鋡鋆銴镼閬閫閮閰隤隢雓霅霈霂靚鞊鞎鞈韐韏頞頝頦頩頨頠頛頧颲餈飺餑餔餖餗餕駜駍駏駓駔駎駉駖駘駋駗駌骳髬髫髳髲髱魆魃魧魴魱魦魶魵魰魨魤魬鳼鳺鳽鳿鳷鴇鴀鳹鳻鴈鴅鴄麃黓鼏鼐儜儓儗儚儑凞匴叡噰噠噮"],
+["e940","噳噦噣噭噲噞噷圜圛壈墽壉墿墺壂墼壆嬗嬙嬛嬡嬔嬓嬐嬖嬨嬚嬠嬞寯嶬嶱嶩嶧嶵嶰嶮嶪嶨嶲嶭嶯嶴幧幨幦幯廩廧廦廨廥彋徼憝憨憖懅憴懆懁懌憺"],
+["e9a1","憿憸憌擗擖擐擏擉撽撉擃擛擳擙攳敿敼斢曈暾曀曊曋曏暽暻暺曌朣樴橦橉橧樲橨樾橝橭橶橛橑樨橚樻樿橁橪橤橐橏橔橯橩橠樼橞橖橕橍橎橆歕歔歖殧殪殫毈毇氄氃氆澭濋澣濇澼濎濈潞濄澽澞濊澨瀄澥澮澺澬澪濏澿澸"],
+["ea40","澢濉澫濍澯澲澰燅燂熿熸燖燀燁燋燔燊燇燏熽燘熼燆燚燛犝犞獩獦獧獬獥獫獪瑿璚璠璔璒璕璡甋疀瘯瘭瘱瘽瘳瘼瘵瘲瘰皻盦瞚瞝瞡瞜瞛瞢瞣瞕瞙"],
+["eaa1","瞗磝磩磥磪磞磣磛磡磢磭磟磠禤穄穈穇窶窸窵窱窷篞篣篧篝篕篥篚篨篹篔篪篢篜篫篘篟糒糔糗糐糑縒縡縗縌縟縠縓縎縜縕縚縢縋縏縖縍縔縥縤罃罻罼罺羱翯耪耩聬膱膦膮膹膵膫膰膬膴膲膷膧臲艕艖艗蕖蕅蕫蕍蕓蕡蕘"],
+["eb40","蕀蕆蕤蕁蕢蕄蕑蕇蕣蔾蕛蕱蕎蕮蕵蕕蕧蕠薌蕦蕝蕔蕥蕬虣虥虤螛螏螗螓螒螈螁螖螘蝹螇螣螅螐螑螝螄螔螜螚螉褞褦褰褭褮褧褱褢褩褣褯褬褟觱諠"],
+["eba1","諢諲諴諵諝謔諤諟諰諈諞諡諨諿諯諻貑貒貐賵賮賱賰賳赬赮趥趧踳踾踸蹀蹅踶踼踽蹁踰踿躽輶輮輵輲輹輷輴遶遹遻邆郺鄳鄵鄶醓醐醑醍醏錧錞錈錟錆錏鍺錸錼錛錣錒錁鍆錭錎錍鋋錝鋺錥錓鋹鋷錴錂錤鋿錩錹錵錪錔錌"],
+["ec40","錋鋾錉錀鋻錖閼闍閾閹閺閶閿閵閽隩雔霋霒霐鞙鞗鞔韰韸頵頯頲餤餟餧餩馞駮駬駥駤駰駣駪駩駧骹骿骴骻髶髺髹髷鬳鮀鮅鮇魼魾魻鮂鮓鮒鮐魺鮕"],
+["eca1","魽鮈鴥鴗鴠鴞鴔鴩鴝鴘鴢鴐鴙鴟麈麆麇麮麭黕黖黺鼒鼽儦儥儢儤儠儩勴嚓嚌嚍嚆嚄嚃噾嚂噿嚁壖壔壏壒嬭嬥嬲嬣嬬嬧嬦嬯嬮孻寱寲嶷幬幪徾徻懃憵憼懧懠懥懤懨懞擯擩擣擫擤擨斁斀斶旚曒檍檖檁檥檉檟檛檡檞檇檓檎"],
+["ed40","檕檃檨檤檑橿檦檚檅檌檒歛殭氉濌澩濴濔濣濜濭濧濦濞濲濝濢濨燡燱燨燲燤燰燢獳獮獯璗璲璫璐璪璭璱璥璯甐甑甒甏疄癃癈癉癇皤盩瞵瞫瞲瞷瞶"],
+["eda1","瞴瞱瞨矰磳磽礂磻磼磲礅磹磾礄禫禨穜穛穖穘穔穚窾竀竁簅簏篲簀篿篻簎篴簋篳簂簉簃簁篸篽簆篰篱簐簊糨縭縼繂縳顈縸縪繉繀繇縩繌縰縻縶繄縺罅罿罾罽翴翲耬膻臄臌臊臅臇膼臩艛艚艜薃薀薏薧薕薠薋薣蕻薤薚薞"],
+["ee40","蕷蕼薉薡蕺蕸蕗薎薖薆薍薙薝薁薢薂薈薅蕹蕶薘薐薟虨螾螪螭蟅螰螬螹螵螼螮蟉蟃蟂蟌螷螯蟄蟊螴螶螿螸螽蟞螲褵褳褼褾襁襒褷襂覭覯覮觲觳謞"],
+["eea1","謘謖謑謅謋謢謏謒謕謇謍謈謆謜謓謚豏豰豲豱豯貕貔賹赯蹎蹍蹓蹐蹌蹇轃轀邅遾鄸醚醢醛醙醟醡醝醠鎡鎃鎯鍤鍖鍇鍼鍘鍜鍶鍉鍐鍑鍠鍭鎏鍌鍪鍹鍗鍕鍒鍏鍱鍷鍻鍡鍞鍣鍧鎀鍎鍙闇闀闉闃闅閷隮隰隬霠霟霘霝霙鞚鞡鞜"],
+["ef40","鞞鞝韕韔韱顁顄顊顉顅顃餥餫餬餪餳餲餯餭餱餰馘馣馡騂駺駴駷駹駸駶駻駽駾駼騃骾髾髽鬁髼魈鮚鮨鮞鮛鮦鮡鮥鮤鮆鮢鮠鮯鴳鵁鵧鴶鴮鴯鴱鴸鴰"],
+["efa1","鵅鵂鵃鴾鴷鵀鴽翵鴭麊麉麍麰黈黚黻黿鼤鼣鼢齔龠儱儭儮嚘嚜嚗嚚嚝嚙奰嬼屩屪巀幭幮懘懟懭懮懱懪懰懫懖懩擿攄擽擸攁攃擼斔旛曚曛曘櫅檹檽櫡櫆檺檶檷櫇檴檭歞毉氋瀇瀌瀍瀁瀅瀔瀎濿瀀濻瀦濼濷瀊爁燿燹爃燽獶"],
+["f040","璸瓀璵瓁璾璶璻瓂甔甓癜癤癙癐癓癗癚皦皽盬矂瞺磿礌礓礔礉礐礒礑禭禬穟簜簩簙簠簟簭簝簦簨簢簥簰繜繐繖繣繘繢繟繑繠繗繓羵羳翷翸聵臑臒"],
+["f0a1","臐艟艞薴藆藀藃藂薳薵薽藇藄薿藋藎藈藅薱薶藒蘤薸薷薾虩蟧蟦蟢蟛蟫蟪蟥蟟蟳蟤蟔蟜蟓蟭蟘蟣螤蟗蟙蠁蟴蟨蟝襓襋襏襌襆襐襑襉謪謧謣謳謰謵譇謯謼謾謱謥謷謦謶謮謤謻謽謺豂豵貙貘貗賾贄贂贀蹜蹢蹠蹗蹖蹞蹥蹧"],
+["f140","蹛蹚蹡蹝蹩蹔轆轇轈轋鄨鄺鄻鄾醨醥醧醯醪鎵鎌鎒鎷鎛鎝鎉鎧鎎鎪鎞鎦鎕鎈鎙鎟鎍鎱鎑鎲鎤鎨鎴鎣鎥闒闓闑隳雗雚巂雟雘雝霣霢霥鞬鞮鞨鞫鞤鞪"],
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+["f840","讌讎讋讈豅贙躘轤轣醼鑢鑕鑝鑗鑞韄韅頀驖驙鬞鬟鬠鱒鱘鱐鱊鱍鱋鱕鱙鱌鱎鷻鷷鷯鷣鷫鷸鷤鷶鷡鷮鷦鷲鷰鷢鷬鷴鷳鷨鷭黂黐黲黳鼆鼜鼸鼷鼶齃齏"],
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+["f940","纘纛纙臠臡虆虇虈襹襺襼襻觿讘讙躥躤躣鑮鑭鑯鑱鑳靉顲饟鱨鱮鱭鸋鸍鸐鸏鸒鸑麡黵鼉齇齸齻齺齹圞灦籯蠼趲躦釃鑴鑸鑶鑵驠鱴鱳鱱鱵鸔鸓黶鼊"],
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+]
diff --git a/backend/node_modules/iconv-lite/encodings/tables/eucjp.json b/backend/node_modules/iconv-lite/encodings/tables/eucjp.json
new file mode 100644
index 0000000..4fa61ca
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/tables/eucjp.json
@@ -0,0 +1,182 @@
+[
+["0","\u0000",127],
+["8ea1","｡",62],
+["a1a1","　、。，．・：；？！゛゜´｀¨＾￣＿ヽヾゝゞ〃仝々〆〇ー―‐／＼～∥｜…‥‘’“”（）〔〕［］｛｝〈",9,"＋－±×÷＝≠＜＞≦≧∞∴♂♀°′″℃￥＄￠￡％＃＆＊＠§☆★○●◎◇"],
+["a2a1","◆□■△▲▽▼※〒→←↑↓〓"],
+["a2ba","∈∋⊆⊇⊂⊃∪∩"],
+["a2ca","∧∨￢⇒⇔∀∃"],
+["a2dc","∠⊥⌒∂∇≡≒≪≫√∽∝∵∫∬"],
+["a2f2","ʼn♯♭♪†‡¶"],
+["a2fe","◯"],
+["a3b0","０",9],
+["a3c1","Ａ",25],
+["a3e1","ａ",25],
+["a4a1","ぁ",82],
+["a5a1","ァ",85],
+["a6a1","Α",16,"Σ",6],
+["a6c1","α",16,"σ",6],
+["a7a1","А",5,"ЁЖ",25],
+["a7d1","а",5,"ёж",25],
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+["ada1","①",19,"Ⅰ",9],
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+["addf","㍻〝〟№㏍℡㊤",4,"㈱㈲㈹㍾㍽㍼≒≡∫∮∑√⊥∠∟⊿∵∩∪"],
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+["b1a1","院陰隠韻吋右宇烏羽迂雨卯鵜窺丑碓臼渦嘘唄欝蔚鰻姥厩浦瓜閏噂云運雲荏餌叡営嬰影映曳栄永泳洩瑛盈穎頴英衛詠鋭液疫益駅悦謁越閲榎厭円園堰奄宴延怨掩援沿演炎焔煙燕猿縁艶苑薗遠鉛鴛塩於汚甥凹央奥往応"],
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+["bfa1","拭植殖燭織職色触食蝕辱尻伸信侵唇娠寝審心慎振新晋森榛浸深申疹真神秦紳臣芯薪親診身辛進針震人仁刃塵壬尋甚尽腎訊迅陣靭笥諏須酢図厨逗吹垂帥推水炊睡粋翠衰遂酔錐錘随瑞髄崇嵩数枢趨雛据杉椙菅頗雀裾"],
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+["c2a1","臓蔵贈造促側則即息捉束測足速俗属賊族続卒袖其揃存孫尊損村遜他多太汰詑唾堕妥惰打柁舵楕陀駄騨体堆対耐岱帯待怠態戴替泰滞胎腿苔袋貸退逮隊黛鯛代台大第醍題鷹滝瀧卓啄宅托択拓沢濯琢託鐸濁諾茸凧蛸只"],
+["c3a1","叩但達辰奪脱巽竪辿棚谷狸鱈樽誰丹単嘆坦担探旦歎淡湛炭短端箪綻耽胆蛋誕鍛団壇弾断暖檀段男談値知地弛恥智池痴稚置致蜘遅馳築畜竹筑蓄逐秩窒茶嫡着中仲宙忠抽昼柱注虫衷註酎鋳駐樗瀦猪苧著貯丁兆凋喋寵"],
+["c4a1","帖帳庁弔張彫徴懲挑暢朝潮牒町眺聴脹腸蝶調諜超跳銚長頂鳥勅捗直朕沈珍賃鎮陳津墜椎槌追鎚痛通塚栂掴槻佃漬柘辻蔦綴鍔椿潰坪壷嬬紬爪吊釣鶴亭低停偵剃貞呈堤定帝底庭廷弟悌抵挺提梯汀碇禎程締艇訂諦蹄逓"],
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+["c6a1","董蕩藤討謄豆踏逃透鐙陶頭騰闘働動同堂導憧撞洞瞳童胴萄道銅峠鴇匿得徳涜特督禿篤毒独読栃橡凸突椴届鳶苫寅酉瀞噸屯惇敦沌豚遁頓呑曇鈍奈那内乍凪薙謎灘捺鍋楢馴縄畷南楠軟難汝二尼弐迩匂賑肉虹廿日乳入"],
+["c7a1","如尿韮任妊忍認濡禰祢寧葱猫熱年念捻撚燃粘乃廼之埜嚢悩濃納能脳膿農覗蚤巴把播覇杷波派琶破婆罵芭馬俳廃拝排敗杯盃牌背肺輩配倍培媒梅楳煤狽買売賠陪這蝿秤矧萩伯剥博拍柏泊白箔粕舶薄迫曝漠爆縛莫駁麦"],
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+["c9a1","鼻柊稗匹疋髭彦膝菱肘弼必畢筆逼桧姫媛紐百謬俵彪標氷漂瓢票表評豹廟描病秒苗錨鋲蒜蛭鰭品彬斌浜瀕貧賓頻敏瓶不付埠夫婦富冨布府怖扶敷斧普浮父符腐膚芙譜負賦赴阜附侮撫武舞葡蕪部封楓風葺蕗伏副復幅服"],
+["caa1","福腹複覆淵弗払沸仏物鮒分吻噴墳憤扮焚奮粉糞紛雰文聞丙併兵塀幣平弊柄並蔽閉陛米頁僻壁癖碧別瞥蔑箆偏変片篇編辺返遍便勉娩弁鞭保舗鋪圃捕歩甫補輔穂募墓慕戊暮母簿菩倣俸包呆報奉宝峰峯崩庖抱捧放方朋"],
+["cba1","法泡烹砲縫胞芳萌蓬蜂褒訪豊邦鋒飽鳳鵬乏亡傍剖坊妨帽忘忙房暴望某棒冒紡肪膨謀貌貿鉾防吠頬北僕卜墨撲朴牧睦穆釦勃没殆堀幌奔本翻凡盆摩磨魔麻埋妹昧枚毎哩槙幕膜枕鮪柾鱒桝亦俣又抹末沫迄侭繭麿万慢満"],
+["cca1","漫蔓味未魅巳箕岬密蜜湊蓑稔脈妙粍民眠務夢無牟矛霧鵡椋婿娘冥名命明盟迷銘鳴姪牝滅免棉綿緬面麺摸模茂妄孟毛猛盲網耗蒙儲木黙目杢勿餅尤戻籾貰問悶紋門匁也冶夜爺耶野弥矢厄役約薬訳躍靖柳薮鑓愉愈油癒"],
+["cda1","諭輸唯佑優勇友宥幽悠憂揖有柚湧涌猶猷由祐裕誘遊邑郵雄融夕予余与誉輿預傭幼妖容庸揚揺擁曜楊様洋溶熔用窯羊耀葉蓉要謡踊遥陽養慾抑欲沃浴翌翼淀羅螺裸来莱頼雷洛絡落酪乱卵嵐欄濫藍蘭覧利吏履李梨理璃"],
+["cea1","痢裏裡里離陸律率立葎掠略劉流溜琉留硫粒隆竜龍侶慮旅虜了亮僚両凌寮料梁涼猟療瞭稜糧良諒遼量陵領力緑倫厘林淋燐琳臨輪隣鱗麟瑠塁涙累類令伶例冷励嶺怜玲礼苓鈴隷零霊麗齢暦歴列劣烈裂廉恋憐漣煉簾練聯"],
+["cfa1","蓮連錬呂魯櫓炉賂路露労婁廊弄朗楼榔浪漏牢狼篭老聾蝋郎六麓禄肋録論倭和話歪賄脇惑枠鷲亙亘鰐詫藁蕨椀湾碗腕"],
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+["d1a1","僉僊傳僂僖僞僥僭僣僮價僵儉儁儂儖儕儔儚儡儺儷儼儻儿兀兒兌兔兢竸兩兪兮冀冂囘册冉冏冑冓冕冖冤冦冢冩冪冫决冱冲冰况冽凅凉凛几處凩凭凰凵凾刄刋刔刎刧刪刮刳刹剏剄剋剌剞剔剪剴剩剳剿剽劍劔劒剱劈劑辨"],
+["d2a1","辧劬劭劼劵勁勍勗勞勣勦飭勠勳勵勸勹匆匈甸匍匐匏匕匚匣匯匱匳匸區卆卅丗卉卍凖卞卩卮夘卻卷厂厖厠厦厥厮厰厶參簒雙叟曼燮叮叨叭叺吁吽呀听吭吼吮吶吩吝呎咏呵咎呟呱呷呰咒呻咀呶咄咐咆哇咢咸咥咬哄哈咨"],
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+["d5a1","奸妁妝佞侫妣妲姆姨姜妍姙姚娥娟娑娜娉娚婀婬婉娵娶婢婪媚媼媾嫋嫂媽嫣嫗嫦嫩嫖嫺嫻嬌嬋嬖嬲嫐嬪嬶嬾孃孅孀孑孕孚孛孥孩孰孳孵學斈孺宀它宦宸寃寇寉寔寐寤實寢寞寥寫寰寶寳尅將專對尓尠尢尨尸尹屁屆屎屓"],
+["d6a1","屐屏孱屬屮乢屶屹岌岑岔妛岫岻岶岼岷峅岾峇峙峩峽峺峭嶌峪崋崕崗嵜崟崛崑崔崢崚崙崘嵌嵒嵎嵋嵬嵳嵶嶇嶄嶂嶢嶝嶬嶮嶽嶐嶷嶼巉巍巓巒巖巛巫已巵帋帚帙帑帛帶帷幄幃幀幎幗幔幟幢幤幇幵并幺麼广庠廁廂廈廐廏"],
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+["d8a1","悄悛悖悗悒悧悋惡悸惠惓悴忰悽惆悵惘慍愕愆惶惷愀惴惺愃愡惻惱愍愎慇愾愨愧慊愿愼愬愴愽慂慄慳慷慘慙慚慫慴慯慥慱慟慝慓慵憙憖憇憬憔憚憊憑憫憮懌懊應懷懈懃懆憺懋罹懍懦懣懶懺懴懿懽懼懾戀戈戉戍戌戔戛"],
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+["daa1","據擒擅擇撻擘擂擱擧舉擠擡抬擣擯攬擶擴擲擺攀擽攘攜攅攤攣攫攴攵攷收攸畋效敖敕敍敘敞敝敲數斂斃變斛斟斫斷旃旆旁旄旌旒旛旙无旡旱杲昊昃旻杳昵昶昴昜晏晄晉晁晞晝晤晧晨晟晢晰暃暈暎暉暄暘暝曁暹曉暾暼"],
+["dba1","曄暸曖曚曠昿曦曩曰曵曷朏朖朞朦朧霸朮朿朶杁朸朷杆杞杠杙杣杤枉杰枩杼杪枌枋枦枡枅枷柯枴柬枳柩枸柤柞柝柢柮枹柎柆柧檜栞框栩桀桍栲桎梳栫桙档桷桿梟梏梭梔條梛梃檮梹桴梵梠梺椏梍桾椁棊椈棘椢椦棡椌棍"],
+["dca1","棔棧棕椶椒椄棗棣椥棹棠棯椨椪椚椣椡棆楹楷楜楸楫楔楾楮椹楴椽楙椰楡楞楝榁楪榲榮槐榿槁槓榾槎寨槊槝榻槃榧樮榑榠榜榕榴槞槨樂樛槿權槹槲槧樅榱樞槭樔槫樊樒櫁樣樓橄樌橲樶橸橇橢橙橦橈樸樢檐檍檠檄檢檣"],
+["dda1","檗蘗檻櫃櫂檸檳檬櫞櫑櫟檪櫚櫪櫻欅蘖櫺欒欖鬱欟欸欷盜欹飮歇歃歉歐歙歔歛歟歡歸歹歿殀殄殃殍殘殕殞殤殪殫殯殲殱殳殷殼毆毋毓毟毬毫毳毯麾氈氓气氛氤氣汞汕汢汪沂沍沚沁沛汾汨汳沒沐泄泱泓沽泗泅泝沮沱沾"],
+["dea1","沺泛泯泙泪洟衍洶洫洽洸洙洵洳洒洌浣涓浤浚浹浙涎涕濤涅淹渕渊涵淇淦涸淆淬淞淌淨淒淅淺淙淤淕淪淮渭湮渮渙湲湟渾渣湫渫湶湍渟湃渺湎渤滿渝游溂溪溘滉溷滓溽溯滄溲滔滕溏溥滂溟潁漑灌滬滸滾漿滲漱滯漲滌"],
+["dfa1","漾漓滷澆潺潸澁澀潯潛濳潭澂潼潘澎澑濂潦澳澣澡澤澹濆澪濟濕濬濔濘濱濮濛瀉瀋濺瀑瀁瀏濾瀛瀚潴瀝瀘瀟瀰瀾瀲灑灣炙炒炯烱炬炸炳炮烟烋烝烙焉烽焜焙煥煕熈煦煢煌煖煬熏燻熄熕熨熬燗熹熾燒燉燔燎燠燬燧燵燼"],
+["e0a1","燹燿爍爐爛爨爭爬爰爲爻爼爿牀牆牋牘牴牾犂犁犇犒犖犢犧犹犲狃狆狄狎狒狢狠狡狹狷倏猗猊猜猖猝猴猯猩猥猾獎獏默獗獪獨獰獸獵獻獺珈玳珎玻珀珥珮珞璢琅瑯琥珸琲琺瑕琿瑟瑙瑁瑜瑩瑰瑣瑪瑶瑾璋璞璧瓊瓏瓔珱"],
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+["8fd9a1","蓜蓧蓪蓯蓰蓱蓲蓷蔲蓺蓻蓽蔂蔃蔇蔌蔎蔐蔜蔞蔢蔣蔤蔥蔧蔪蔫蔯蔳蔴蔶蔿蕆蕏",4,"蕖蕙蕜",6,"蕤蕫蕯蕹蕺蕻蕽蕿薁薅薆薉薋薌薏薓薘薝薟薠薢薥薧薴薶薷薸薼薽薾薿藂藇藊藋藎薭藘藚藟藠藦藨藭藳藶藼"],
+["8fdaa1","藿蘀蘄蘅蘍蘎蘐蘑蘒蘘蘙蘛蘞蘡蘧蘩蘶蘸蘺蘼蘽虀虂虆虒虓虖虗虘虙虝虠",4,"虩虬虯虵虶虷虺蚍蚑蚖蚘蚚蚜蚡蚦蚧蚨蚭蚱蚳蚴蚵蚷蚸蚹蚿蛀蛁蛃蛅蛑蛒蛕蛗蛚蛜蛠蛣蛥蛧蚈蛺蛼蛽蜄蜅蜇蜋蜎蜏蜐蜓蜔蜙蜞蜟蜡蜣"],
+["8fdba1","蜨蜮蜯蜱蜲蜹蜺蜼蜽蜾蝀蝃蝅蝍蝘蝝蝡蝤蝥蝯蝱蝲蝻螃",6,"螋螌螐螓螕螗螘螙螞螠螣螧螬螭螮螱螵螾螿蟁蟈蟉蟊蟎蟕蟖蟙蟚蟜蟟蟢蟣蟤蟪蟫蟭蟱蟳蟸蟺蟿蠁蠃蠆蠉蠊蠋蠐蠙蠒蠓蠔蠘蠚蠛蠜蠞蠟蠨蠭蠮蠰蠲蠵"],
+["8fdca1","蠺蠼衁衃衅衈衉衊衋衎衑衕衖衘衚衜衟衠衤衩衱衹衻袀袘袚袛袜袟袠袨袪袺袽袾裀裊",4,"裑裒裓裛裞裧裯裰裱裵裷褁褆褍褎褏褕褖褘褙褚褜褠褦褧褨褰褱褲褵褹褺褾襀襂襅襆襉襏襒襗襚襛襜襡襢襣襫襮襰襳襵襺"],
+["8fdda1","襻襼襽覉覍覐覔覕覛覜覟覠覥覰覴覵覶覷覼觔",4,"觥觩觫觭觱觳觶觹觽觿訄訅訇訏訑訒訔訕訞訠訢訤訦訫訬訯訵訷訽訾詀詃詅詇詉詍詎詓詖詗詘詜詝詡詥詧詵詶詷詹詺詻詾詿誀誃誆誋誏誐誒誖誗誙誟誧誩誮誯誳"],
+["8fdea1","誶誷誻誾諃諆諈諉諊諑諓諔諕諗諝諟諬諰諴諵諶諼諿謅謆謋謑謜謞謟謊謭謰謷謼譂",4,"譈譒譓譔譙譍譞譣譭譶譸譹譼譾讁讄讅讋讍讏讔讕讜讞讟谸谹谽谾豅豇豉豋豏豑豓豔豗豘豛豝豙豣豤豦豨豩豭豳豵豶豻豾貆"],
+["8fdfa1","貇貋貐貒貓貙貛貜貤貹貺賅賆賉賋賏賖賕賙賝賡賨賬賯賰賲賵賷賸賾賿贁贃贉贒贗贛赥赩赬赮赿趂趄趈趍趐趑趕趞趟趠趦趫趬趯趲趵趷趹趻跀跅跆跇跈跊跎跑跔跕跗跙跤跥跧跬跰趼跱跲跴跽踁踄踅踆踋踑踔踖踠踡踢"],
+["8fe0a1","踣踦踧踱踳踶踷踸踹踽蹀蹁蹋蹍蹎蹏蹔蹛蹜蹝蹞蹡蹢蹩蹬蹭蹯蹰蹱蹹蹺蹻躂躃躉躐躒躕躚躛躝躞躢躧躩躭躮躳躵躺躻軀軁軃軄軇軏軑軔軜軨軮軰軱軷軹軺軭輀輂輇輈輏輐輖輗輘輞輠輡輣輥輧輨輬輭輮輴輵輶輷輺轀轁"],
+["8fe1a1","轃轇轏轑",4,"轘轝轞轥辝辠辡辤辥辦辵辶辸达迀迁迆迊迋迍运迒迓迕迠迣迤迨迮迱迵迶迻迾适逄逈逌逘逛逨逩逯逪逬逭逳逴逷逿遃遄遌遛遝遢遦遧遬遰遴遹邅邈邋邌邎邐邕邗邘邙邛邠邡邢邥邰邲邳邴邶邽郌邾郃"],
+["8fe2a1","郄郅郇郈郕郗郘郙郜郝郟郥郒郶郫郯郰郴郾郿鄀鄄鄅鄆鄈鄍鄐鄔鄖鄗鄘鄚鄜鄞鄠鄥鄢鄣鄧鄩鄮鄯鄱鄴鄶鄷鄹鄺鄼鄽酃酇酈酏酓酗酙酚酛酡酤酧酭酴酹酺酻醁醃醅醆醊醎醑醓醔醕醘醞醡醦醨醬醭醮醰醱醲醳醶醻醼醽醿"],
+["8fe3a1","釂釃釅釓釔釗釙釚釞釤釥釩釪釬",5,"釷釹釻釽鈀鈁鈄鈅鈆鈇鈉鈊鈌鈐鈒鈓鈖鈘鈜鈝鈣鈤鈥鈦鈨鈮鈯鈰鈳鈵鈶鈸鈹鈺鈼鈾鉀鉂鉃鉆鉇鉊鉍鉎鉏鉑鉘鉙鉜鉝鉠鉡鉥鉧鉨鉩鉮鉯鉰鉵",4,"鉻鉼鉽鉿銈銉銊銍銎銒銗"],
+["8fe4a1","銙銟銠銤銥銧銨銫銯銲銶銸銺銻銼銽銿",4,"鋅鋆鋇鋈鋋鋌鋍鋎鋐鋓鋕鋗鋘鋙鋜鋝鋟鋠鋡鋣鋥鋧鋨鋬鋮鋰鋹鋻鋿錀錂錈錍錑錔錕錜錝錞錟錡錤錥錧錩錪錳錴錶錷鍇鍈鍉鍐鍑鍒鍕鍗鍘鍚鍞鍤鍥鍧鍩鍪鍭鍯鍰鍱鍳鍴鍶"],
+["8fe5a1","鍺鍽鍿鎀鎁鎂鎈鎊鎋鎍鎏鎒鎕鎘鎛鎞鎡鎣鎤鎦鎨鎫鎴鎵鎶鎺鎩鏁鏄鏅鏆鏇鏉",4,"鏓鏙鏜鏞鏟鏢鏦鏧鏹鏷鏸鏺鏻鏽鐁鐂鐄鐈鐉鐍鐎鐏鐕鐖鐗鐟鐮鐯鐱鐲鐳鐴鐻鐿鐽鑃鑅鑈鑊鑌鑕鑙鑜鑟鑡鑣鑨鑫鑭鑮鑯鑱鑲钄钃镸镹"],
+["8fe6a1","镾閄閈閌閍閎閝閞閟閡閦閩閫閬閴閶閺閽閿闆闈闉闋闐闑闒闓闙闚闝闞闟闠闤闦阝阞阢阤阥阦阬阱阳阷阸阹阺阼阽陁陒陔陖陗陘陡陮陴陻陼陾陿隁隂隃隄隉隑隖隚隝隟隤隥隦隩隮隯隳隺雊雒嶲雘雚雝雞雟雩雯雱雺霂"],
+["8fe7a1","霃霅霉霚霛霝霡霢霣霨霱霳靁靃靊靎靏靕靗靘靚靛靣靧靪靮靳靶靷靸靻靽靿鞀鞉鞕鞖鞗鞙鞚鞞鞟鞢鞬鞮鞱鞲鞵鞶鞸鞹鞺鞼鞾鞿韁韄韅韇韉韊韌韍韎韐韑韔韗韘韙韝韞韠韛韡韤韯韱韴韷韸韺頇頊頙頍頎頔頖頜頞頠頣頦"],
+["8fe8a1","頫頮頯頰頲頳頵頥頾顄顇顊顑顒顓顖顗顙顚顢顣顥顦顪顬颫颭颮颰颴颷颸颺颻颿飂飅飈飌飡飣飥飦飧飪飳飶餂餇餈餑餕餖餗餚餛餜餟餢餦餧餫餱",4,"餹餺餻餼饀饁饆饇饈饍饎饔饘饙饛饜饞饟饠馛馝馟馦馰馱馲馵"],
+["8fe9a1","馹馺馽馿駃駉駓駔駙駚駜駞駧駪駫駬駰駴駵駹駽駾騂騃騄騋騌騐騑騖騞騠騢騣騤騧騭騮騳騵騶騸驇驁驄驊驋驌驎驑驔驖驝骪骬骮骯骲骴骵骶骹骻骾骿髁髃髆髈髎髐髒髕髖髗髛髜髠髤髥髧髩髬髲髳髵髹髺髽髿",4],
+["8feaa1","鬄鬅鬈鬉鬋鬌鬍鬎鬐鬒鬖鬙鬛鬜鬠鬦鬫鬭鬳鬴鬵鬷鬹鬺鬽魈魋魌魕魖魗魛魞魡魣魥魦魨魪",4,"魳魵魷魸魹魿鮀鮄鮅鮆鮇鮉鮊鮋鮍鮏鮐鮔鮚鮝鮞鮦鮧鮩鮬鮰鮱鮲鮷鮸鮻鮼鮾鮿鯁鯇鯈鯎鯐鯗鯘鯝鯟鯥鯧鯪鯫鯯鯳鯷鯸"],
+["8feba1","鯹鯺鯽鯿鰀鰂鰋鰏鰑鰖鰘鰙鰚鰜鰞鰢鰣鰦",4,"鰱鰵鰶鰷鰽鱁鱃鱄鱅鱉鱊鱎鱏鱐鱓鱔鱖鱘鱛鱝鱞鱟鱣鱩鱪鱜鱫鱨鱮鱰鱲鱵鱷鱻鳦鳲鳷鳹鴋鴂鴑鴗鴘鴜鴝鴞鴯鴰鴲鴳鴴鴺鴼鵅鴽鵂鵃鵇鵊鵓鵔鵟鵣鵢鵥鵩鵪鵫鵰鵶鵷鵻"],
+["8feca1","鵼鵾鶃鶄鶆鶊鶍鶎鶒鶓鶕鶖鶗鶘鶡鶪鶬鶮鶱鶵鶹鶼鶿鷃鷇鷉鷊鷔鷕鷖鷗鷚鷞鷟鷠鷥鷧鷩鷫鷮鷰鷳鷴鷾鸊鸂鸇鸎鸐鸑鸒鸕鸖鸙鸜鸝鹺鹻鹼麀麂麃麄麅麇麎麏麖麘麛麞麤麨麬麮麯麰麳麴麵黆黈黋黕黟黤黧黬黭黮黰黱黲黵"],
+["8feda1","黸黿鼂鼃鼉鼏鼐鼑鼒鼔鼖鼗鼙鼚鼛鼟鼢鼦鼪鼫鼯鼱鼲鼴鼷鼹鼺鼼鼽鼿齁齃",4,"齓齕齖齗齘齚齝齞齨齩齭",4,"齳齵齺齽龏龐龑龒龔龖龗龞龡龢龣龥"]
+]
diff --git a/backend/node_modules/iconv-lite/encodings/tables/gb18030-ranges.json b/backend/node_modules/iconv-lite/encodings/tables/gb18030-ranges.json
new file mode 100644
index 0000000..85c6934
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/tables/gb18030-ranges.json
@@ -0,0 +1 @@
+{"uChars":[128,165,169,178,184,216,226,235,238,244,248,251,253,258,276,284,300,325,329,334,364,463,465,467,469,471,473,475,477,506,594,610,712,716,730,930,938,962,970,1026,1104,1106,8209,8215,8218,8222,8231,8241,8244,8246,8252,8365,8452,8454,8458,8471,8482,8556,8570,8596,8602,8713,8720,8722,8726,8731,8737,8740,8742,8748,8751,8760,8766,8777,8781,8787,8802,8808,8816,8854,8858,8870,8896,8979,9322,9372,9548,9588,9616,9622,9634,9652,9662,9672,9676,9680,9702,9735,9738,9793,9795,11906,11909,11913,11917,11928,11944,11947,11951,11956,11960,11964,11979,12284,12292,12312,12319,12330,12351,12436,12447,12535,12543,12586,12842,12850,12964,13200,13215,13218,13253,13263,13267,13270,13384,13428,13727,13839,13851,14617,14703,14801,14816,14964,15183,15471,15585,16471,16736,17208,17325,17330,17374,17623,17997,18018,18212,18218,18301,18318,18760,18811,18814,18820,18823,18844,18848,18872,19576,19620,19738,19887,40870,59244,59336,59367,59413,59417,59423,59431,59437,59443,59452,59460,59478,59493,63789,63866,63894,63976,63986,64016,64018,64021,64025,64034,64037,64042,65074,65093,65107,65112,65127,65132,65375,65510,65536],"gbChars":[0,36,38,45,50,81,89,95,96,100,103,104,105,109,126,133,148,172,175,179,208,306,307,308,309,310,311,312,313,341,428,443,544,545,558,741,742,749,750,805,819,820,7922,7924,7925,7927,7934,7943,7944,7945,7950,8062,8148,8149,8152,8164,8174,8236,8240,8262,8264,8374,8380,8381,8384,8388,8390,8392,8393,8394,8396,8401,8406,8416,8419,8424,8437,8439,8445,8482,8485,8496,8521,8603,8936,8946,9046,9050,9063,9066,9076,9092,9100,9108,9111,9113,9131,9162,9164,9218,9219,11329,11331,11334,11336,11346,11361,11363,11366,11370,11372,11375,11389,11682,11686,11687,11692,11694,11714,11716,11723,11725,11730,11736,11982,11989,12102,12336,12348,12350,12384,12393,12395,12397,12510,12553,12851,12962,12973,13738,13823,13919,13933,14080,14298,14585,14698,15583,15847,16318,16434,16438,16481,16729,17102,17122,17315,17320,17402,17418,17859,17909,17911,17915,17916,17936,17939,17961,18664,18703,18814,18962,19043,33469,33470,33471,33484,33485,33490,33497,33501,33505,33513,33520,33536,33550,37845,37921,37948,38029,38038,38064,38065,38066,38069,38075,38076,38078,39108,39109,39113,39114,39115,39116,39265,39394,189000]}
\ No newline at end of file
diff --git a/backend/node_modules/iconv-lite/encodings/tables/gbk-added.json b/backend/node_modules/iconv-lite/encodings/tables/gbk-added.json
new file mode 100644
index 0000000..8abfa9f
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/tables/gbk-added.json
@@ -0,0 +1,55 @@
+[
+["a140","",62],
+["a180","",32],
+["a240","",62],
+["a280","",32],
+["a2ab","",5],
+["a2e3","€"],
+["a2ef",""],
+["a2fd",""],
+["a340","",62],
+["a380","",31,"　"],
+["a440","",62],
+["a480","",32],
+["a4f4","",10],
+["a540","",62],
+["a580","",32],
+["a5f7","",7],
+["a640","",62],
+["a680","",32],
+["a6b9","",7],
+["a6d9","",6],
+["a6ec",""],
+["a6f3",""],
+["a6f6","",8],
+["a740","",62],
+["a780","",32],
+["a7c2","",14],
+["a7f2","",12],
+["a896","",10],
+["a8bc",""],
+["a8bf","ǹ"],
+["a8c1",""],
+["a8ea","",20],
+["a958",""],
+["a95b",""],
+["a95d",""],
+["a989","〾⿰",11],
+["a997","",12],
+["a9f0","",14],
+["aaa1","",93],
+["aba1","",93],
+["aca1","",93],
+["ada1","",93],
+["aea1","",93],
+["afa1","",93],
+["d7fa","",4],
+["f8a1","",93],
+["f9a1","",93],
+["faa1","",93],
+["fba1","",93],
+["fca1","",93],
+["fda1","",93],
+["fe50","⺁⺄㑳㑇⺈⺋㖞㘚㘎⺌⺗㥮㤘㧏㧟㩳㧐㭎㱮㳠⺧⺪䁖䅟⺮䌷⺳⺶⺷䎱䎬⺻䏝䓖䙡䙌"],
+["fe80","䜣䜩䝼䞍⻊䥇䥺䥽䦂䦃䦅䦆䦟䦛䦷䦶䲣䲟䲠䲡䱷䲢䴓",6,"䶮",93]
+]
diff --git a/backend/node_modules/iconv-lite/encodings/tables/shiftjis.json b/backend/node_modules/iconv-lite/encodings/tables/shiftjis.json
new file mode 100644
index 0000000..5a3a43c
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/tables/shiftjis.json
@@ -0,0 +1,125 @@
+[
+["0","\u0000",128],
+["a1","｡",62],
+["8140","　、。，．・：；？！゛゜´｀¨＾￣＿ヽヾゝゞ〃仝々〆〇ー―‐／＼～∥｜…‥‘’“”（）〔〕［］｛｝〈",9,"＋－±×"],
+["8180","÷＝≠＜＞≦≧∞∴♂♀°′″℃￥＄￠￡％＃＆＊＠§☆★○●◎◇◆□■△▲▽▼※〒→←↑↓〓"],
+["81b8","∈∋⊆⊇⊂⊃∪∩"],
+["81c8","∧∨￢⇒⇔∀∃"],
+["81da","∠⊥⌒∂∇≡≒≪≫√∽∝∵∫∬"],
+["81f0","ʼn♯♭♪†‡¶"],
+["81fc","◯"],
+["824f","０",9],
+["8260","Ａ",25],
+["8281","ａ",25],
+["829f","ぁ",82],
+["8340","ァ",62],
+["8380","ム",22],
+["839f","Α",16,"Σ",6],
+["83bf","α",16,"σ",6],
+["8440","А",5,"ЁЖ",25],
+["8470","а",5,"ёж",7],
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+["ee40","犾猤猪獷玽珉珖珣珒琇珵琦琪琩琮瑢璉璟甁畯皂皜皞皛皦益睆劯砡硎硤硺礰礼神祥禔福禛竑竧靖竫箞精絈絜綷綠緖繒罇羡羽茁荢荿菇菶葈蒴蕓蕙"],
+["ee80","蕫﨟薰蘒﨡蠇裵訒訷詹誧誾諟諸諶譓譿賰賴贒赶﨣軏﨤逸遧郞都鄕鄧釚釗釞釭釮釤釥鈆鈐鈊鈺鉀鈼鉎鉙鉑鈹鉧銧鉷鉸鋧鋗鋙鋐﨧鋕鋠鋓錥錡鋻﨨錞鋿錝錂鍰鍗鎤鏆鏞鏸鐱鑅鑈閒隆﨩隝隯霳霻靃靍靏靑靕顗顥飯飼餧館馞驎髙髜魵魲鮏鮱鮻鰀鵰鵫鶴鸙黑"],
+["eeef","ⅰ",9,"￢￤＇＂"],
+["f040","",62],
+["f080","",124],
+["f140","",62],
+["f180","",124],
+["f240","",62],
+["f280","",124],
+["f340","",62],
+["f380","",124],
+["f440","",62],
+["f480","",124],
+["f540","",62],
+["f580","",124],
+["f640","",62],
+["f680","",124],
+["f740","",62],
+["f780","",124],
+["f840","",62],
+["f880","",124],
+["f940",""],
+["fa40","ⅰ",9,"Ⅰ",9,"￢￤＇＂㈱№℡∵纊褜鍈銈蓜俉炻昱棈鋹曻彅丨仡仼伀伃伹佖侒侊侚侔俍偀倢俿倞偆偰偂傔僴僘兊"],
+["fa80","兤冝冾凬刕劜劦勀勛匀匇匤卲厓厲叝﨎咜咊咩哿喆坙坥垬埈埇﨏塚增墲夋奓奛奝奣妤妺孖寀甯寘寬尞岦岺峵崧嵓﨑嵂嵭嶸嶹巐弡弴彧德忞恝悅悊惞惕愠惲愑愷愰憘戓抦揵摠撝擎敎昀昕昻昉昮昞昤晥晗晙晴晳暙暠暲暿曺朎朗杦枻桒柀栁桄棏﨓楨﨔榘槢樰橫橆橳橾櫢櫤毖氿汜沆汯泚洄涇浯"],
+["fb40","涖涬淏淸淲淼渹湜渧渼溿澈澵濵瀅瀇瀨炅炫焏焄煜煆煇凞燁燾犱犾猤猪獷玽珉珖珣珒琇珵琦琪琩琮瑢璉璟甁畯皂皜皞皛皦益睆劯砡硎硤硺礰礼神"],
+["fb80","祥禔福禛竑竧靖竫箞精絈絜綷綠緖繒罇羡羽茁荢荿菇菶葈蒴蕓蕙蕫﨟薰蘒﨡蠇裵訒訷詹誧誾諟諸諶譓譿賰賴贒赶﨣軏﨤逸遧郞都鄕鄧釚釗釞釭釮釤釥鈆鈐鈊鈺鉀鈼鉎鉙鉑鈹鉧銧鉷鉸鋧鋗鋙鋐﨧鋕鋠鋓錥錡鋻﨨錞鋿錝錂鍰鍗鎤鏆鏞鏸鐱鑅鑈閒隆﨩隝隯霳霻靃靍靏靑靕顗顥飯飼餧館馞驎髙"],
+["fc40","髜魵魲鮏鮱鮻鰀鵰鵫鶴鸙黑"]
+]
diff --git a/backend/node_modules/iconv-lite/encodings/utf16.js b/backend/node_modules/iconv-lite/encodings/utf16.js
new file mode 100644
index 0000000..54765ae
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/utf16.js
@@ -0,0 +1,177 @@
+"use strict";
+var Buffer = require("safer-buffer").Buffer;
+
+// Note: UTF16-LE (or UCS2) codec is Node.js native. See encodings/internal.js
+
+// == UTF16-BE codec. ==========================================================
+
+exports.utf16be = Utf16BECodec;
+function Utf16BECodec() {
+}
+
+Utf16BECodec.prototype.encoder = Utf16BEEncoder;
+Utf16BECodec.prototype.decoder = Utf16BEDecoder;
+Utf16BECodec.prototype.bomAware = true;
+
+
+// -- Encoding
+
+function Utf16BEEncoder() {
+}
+
+Utf16BEEncoder.prototype.write = function(str) {
+    var buf = Buffer.from(str, 'ucs2');
+    for (var i = 0; i < buf.length; i += 2) {
+        var tmp = buf[i]; buf[i] = buf[i+1]; buf[i+1] = tmp;
+    }
+    return buf;
+}
+
+Utf16BEEncoder.prototype.end = function() {
+}
+
+
+// -- Decoding
+
+function Utf16BEDecoder() {
+    this.overflowByte = -1;
+}
+
+Utf16BEDecoder.prototype.write = function(buf) {
+    if (buf.length == 0)
+        return '';
+
+    var buf2 = Buffer.alloc(buf.length + 1),
+        i = 0, j = 0;
+
+    if (this.overflowByte !== -1) {
+        buf2[0] = buf[0];
+        buf2[1] = this.overflowByte;
+        i = 1; j = 2;
+    }
+
+    for (; i < buf.length-1; i += 2, j+= 2) {
+        buf2[j] = buf[i+1];
+        buf2[j+1] = buf[i];
+    }
+
+    this.overflowByte = (i == buf.length-1) ? buf[buf.length-1] : -1;
+
+    return buf2.slice(0, j).toString('ucs2');
+}
+
+Utf16BEDecoder.prototype.end = function() {
+}
+
+
+// == UTF-16 codec =============================================================
+// Decoder chooses automatically from UTF-16LE and UTF-16BE using BOM and space-based heuristic.
+// Defaults to UTF-16LE, as it's prevalent and default in Node.
+// http://en.wikipedia.org/wiki/UTF-16 and http://encoding.spec.whatwg.org/#utf-16le
+// Decoder default can be changed: iconv.decode(buf, 'utf16', {defaultEncoding: 'utf-16be'});
+
+// Encoder uses UTF-16LE and prepends BOM (which can be overridden with addBOM: false).
+
+exports.utf16 = Utf16Codec;
+function Utf16Codec(codecOptions, iconv) {
+    this.iconv = iconv;
+}
+
+Utf16Codec.prototype.encoder = Utf16Encoder;
+Utf16Codec.prototype.decoder = Utf16Decoder;
+
+
+// -- Encoding (pass-through)
+
+function Utf16Encoder(options, codec) {
+    options = options || {};
+    if (options.addBOM === undefined)
+        options.addBOM = true;
+    this.encoder = codec.iconv.getEncoder('utf-16le', options);
+}
+
+Utf16Encoder.prototype.write = function(str) {
+    return this.encoder.write(str);
+}
+
+Utf16Encoder.prototype.end = function() {
+    return this.encoder.end();
+}
+
+
+// -- Decoding
+
+function Utf16Decoder(options, codec) {
+    this.decoder = null;
+    this.initialBytes = [];
+    this.initialBytesLen = 0;
+
+    this.options = options || {};
+    this.iconv = codec.iconv;
+}
+
+Utf16Decoder.prototype.write = function(buf) {
+    if (!this.decoder) {
+        // Codec is not chosen yet. Accumulate initial bytes.
+        this.initialBytes.push(buf);
+        this.initialBytesLen += buf.length;
+        
+        if (this.initialBytesLen < 16) // We need more bytes to use space heuristic (see below)
+            return '';
+
+        // We have enough bytes -> detect endianness.
+        var buf = Buffer.concat(this.initialBytes),
+            encoding = detectEncoding(buf, this.options.defaultEncoding);
+        this.decoder = this.iconv.getDecoder(encoding, this.options);
+        this.initialBytes.length = this.initialBytesLen = 0;
+    }
+
+    return this.decoder.write(buf);
+}
+
+Utf16Decoder.prototype.end = function() {
+    if (!this.decoder) {
+        var buf = Buffer.concat(this.initialBytes),
+            encoding = detectEncoding(buf, this.options.defaultEncoding);
+        this.decoder = this.iconv.getDecoder(encoding, this.options);
+
+        var res = this.decoder.write(buf),
+            trail = this.decoder.end();
+
+        return trail ? (res + trail) : res;
+    }
+    return this.decoder.end();
+}
+
+function detectEncoding(buf, defaultEncoding) {
+    var enc = defaultEncoding || 'utf-16le';
+
+    if (buf.length >= 2) {
+        // Check BOM.
+        if (buf[0] == 0xFE && buf[1] == 0xFF) // UTF-16BE BOM
+            enc = 'utf-16be';
+        else if (buf[0] == 0xFF && buf[1] == 0xFE) // UTF-16LE BOM
+            enc = 'utf-16le';
+        else {
+            // No BOM found. Try to deduce encoding from initial content.
+            // Most of the time, the content has ASCII chars (U+00**), but the opposite (U+**00) is uncommon.
+            // So, we count ASCII as if it was LE or BE, and decide from that.
+            var asciiCharsLE = 0, asciiCharsBE = 0, // Counts of chars in both positions
+                _len = Math.min(buf.length - (buf.length % 2), 64); // Len is always even.
+
+            for (var i = 0; i < _len; i += 2) {
+                if (buf[i] === 0 && buf[i+1] !== 0) asciiCharsBE++;
+                if (buf[i] !== 0 && buf[i+1] === 0) asciiCharsLE++;
+            }
+
+            if (asciiCharsBE > asciiCharsLE)
+                enc = 'utf-16be';
+            else if (asciiCharsBE < asciiCharsLE)
+                enc = 'utf-16le';
+        }
+    }
+
+    return enc;
+}
+
+
diff --git a/backend/node_modules/iconv-lite/encodings/utf7.js b/backend/node_modules/iconv-lite/encodings/utf7.js
new file mode 100644
index 0000000..b7631c2
--- /dev/null
+++ b/backend/node_modules/iconv-lite/encodings/utf7.js
@@ -0,0 +1,290 @@
+"use strict";
+var Buffer = require("safer-buffer").Buffer;
+
+// UTF-7 codec, according to https://tools.ietf.org/html/rfc2152
+// See also below a UTF-7-IMAP codec, according to http://tools.ietf.org/html/rfc3501#section-5.1.3
+
+exports.utf7 = Utf7Codec;
+exports.unicode11utf7 = 'utf7'; // Alias UNICODE-1-1-UTF-7
+function Utf7Codec(codecOptions, iconv) {
+    this.iconv = iconv;
+};
+
+Utf7Codec.prototype.encoder = Utf7Encoder;
+Utf7Codec.prototype.decoder = Utf7Decoder;
+Utf7Codec.prototype.bomAware = true;
+
+
+// -- Encoding
+
+var nonDirectChars = /[^A-Za-z0-9'\(\),-\.\/:\? \n\r\t]+/g;
+
+function Utf7Encoder(options, codec) {
+    this.iconv = codec.iconv;
+}
+
+Utf7Encoder.prototype.write = function(str) {
+    // Naive implementation.
+    // Non-direct chars are encoded as "+<base64>-"; single "+" char is encoded as "+-".
+    return Buffer.from(str.replace(nonDirectChars, function(chunk) {
+        return "+" + (chunk === '+' ? '' : 
+            this.iconv.encode(chunk, 'utf16-be').toString('base64').replace(/=+$/, '')) 
+            + "-";
+    }.bind(this)));
+}
+
+Utf7Encoder.prototype.end = function() {
+}
+
+
+// -- Decoding
+
+function Utf7Decoder(options, codec) {
+    this.iconv = codec.iconv;
+    this.inBase64 = false;
+    this.base64Accum = '';
+}
+
+var base64Regex = /[A-Za-z0-9\/+]/;
+var base64Chars = [];
+for (var i = 0; i < 256; i++)
+    base64Chars[i] = base64Regex.test(String.fromCharCode(i));
+
+var plusChar = '+'.charCodeAt(0), 
+    minusChar = '-'.charCodeAt(0),
+    andChar = '&'.charCodeAt(0);
+
+Utf7Decoder.prototype.write = function(buf) {
+    var res = "", lastI = 0,
+        inBase64 = this.inBase64,
+        base64Accum = this.base64Accum;
+
+    // The decoder is more involved as we must handle chunks in stream.
+
+    for (var i = 0; i < buf.length; i++) {
+        if (!inBase64) { // We're in direct mode.
+            // Write direct chars until '+'
+            if (buf[i] == plusChar) {
+                res += this.iconv.decode(buf.slice(lastI, i), "ascii"); // Write direct chars.
+                lastI = i+1;
+                inBase64 = true;
+            }
+        } else { // We decode base64.
+            if (!base64Chars[buf[i]]) { // Base64 ended.
+                if (i == lastI && buf[i] == minusChar) {// "+-" -> "+"
+                    res += "+";
+                } else {
+                    var b64str = base64Accum + buf.slice(lastI, i).toString();
+                    res += this.iconv.decode(Buffer.from(b64str, 'base64'), "utf16-be");
+                }
+
+                if (buf[i] != minusChar) // Minus is absorbed after base64.
+                    i--;
+
+                lastI = i+1;
+                inBase64 = false;
+                base64Accum = '';
+            }
+        }
+    }
+
+    if (!inBase64) {
+        res += this.iconv.decode(buf.slice(lastI), "ascii"); // Write direct chars.
+    } else {
+        var b64str = base64Accum + buf.slice(lastI).toString();
+
+        var canBeDecoded = b64str.length - (b64str.length % 8); // Minimal chunk: 2 quads -> 2x3 bytes -> 3 chars.
+        base64Accum = b64str.slice(canBeDecoded); // The rest will be decoded in future.
+        b64str = b64str.slice(0, canBeDecoded);
+
+        res += this.iconv.decode(Buffer.from(b64str, 'base64'), "utf16-be");
+    }
+
+    this.inBase64 = inBase64;
+    this.base64Accum = base64Accum;
+
+    return res;
+}
+
+Utf7Decoder.prototype.end = function() {
+    var res = "";
+    if (this.inBase64 && this.base64Accum.length > 0)
+        res = this.iconv.decode(Buffer.from(this.base64Accum, 'base64'), "utf16-be");
+
+    this.inBase64 = false;
+    this.base64Accum = '';
+    return res;
+}
+
+
+// UTF-7-IMAP codec.
+// RFC3501 Sec. 5.1.3 Modified UTF-7 (http://tools.ietf.org/html/rfc3501#section-5.1.3)
+// Differences:
+//  * Base64 part is started by "&" instead of "+"
+//  * Direct characters are 0x20-0x7E, except "&" (0x26)
+//  * In Base64, "," is used instead of "/"
+//  * Base64 must not be used to represent direct characters.
+//  * No implicit shift back from Base64 (should always end with '-')
+//  * String must end in non-shifted position.
+//  * "-&" while in base64 is not allowed.
+
+
+exports.utf7imap = Utf7IMAPCodec;
+function Utf7IMAPCodec(codecOptions, iconv) {
+    this.iconv = iconv;
+};
+
+Utf7IMAPCodec.prototype.encoder = Utf7IMAPEncoder;
+Utf7IMAPCodec.prototype.decoder = Utf7IMAPDecoder;
+Utf7IMAPCodec.prototype.bomAware = true;
+
+
+// -- Encoding
+
+function Utf7IMAPEncoder(options, codec) {
+    this.iconv = codec.iconv;
+    this.inBase64 = false;
+    this.base64Accum = Buffer.alloc(6);
+    this.base64AccumIdx = 0;
+}
+
+Utf7IMAPEncoder.prototype.write = function(str) {
+    var inBase64 = this.inBase64,
+        base64Accum = this.base64Accum,
+        base64AccumIdx = this.base64AccumIdx,
+        buf = Buffer.alloc(str.length*5 + 10), bufIdx = 0;
+
+    for (var i = 0; i < str.length; i++) {
+        var uChar = str.charCodeAt(i);
+        if (0x20 <= uChar && uChar <= 0x7E) { // Direct character or '&'.
+            if (inBase64) {
+                if (base64AccumIdx > 0) {
+                    bufIdx += buf.write(base64Accum.slice(0, base64AccumIdx).toString('base64').replace(/\//g, ',').replace(/=+$/, ''), bufIdx);
+                    base64AccumIdx = 0;
+                }
+
+                buf[bufIdx++] = minusChar; // Write '-', then go to direct mode.
+                inBase64 = false;
+            }
+
+            if (!inBase64) {
+                buf[bufIdx++] = uChar; // Write direct character
+
+                if (uChar === andChar)  // Ampersand -> '&-'
+                    buf[bufIdx++] = minusChar;
+            }
+
+        } else { // Non-direct character
+            if (!inBase64) {
+                buf[bufIdx++] = andChar; // Write '&', then go to base64 mode.
+                inBase64 = true;
+            }
+            if (inBase64) {
+                base64Accum[base64AccumIdx++] = uChar >> 8;
+                base64Accum[base64AccumIdx++] = uChar & 0xFF;
+
+                if (base64AccumIdx == base64Accum.length) {
+                    bufIdx += buf.write(base64Accum.toString('base64').replace(/\//g, ','), bufIdx);
+                    base64AccumIdx = 0;
+                }
+            }
+        }
+    }
+
+    this.inBase64 = inBase64;
+    this.base64AccumIdx = base64AccumIdx;
+
+    return buf.slice(0, bufIdx);
+}
+
+Utf7IMAPEncoder.prototype.end = function() {
+    var buf = Buffer.alloc(10), bufIdx = 0;
+    if (this.inBase64) {
+        if (this.base64AccumIdx > 0) {
+            bufIdx += buf.write(this.base64Accum.slice(0, this.base64AccumIdx).toString('base64').replace(/\//g, ',').replace(/=+$/, ''), bufIdx);
+            this.base64AccumIdx = 0;
+        }
+
+        buf[bufIdx++] = minusChar; // Write '-', then go to direct mode.
+        this.inBase64 = false;
+    }
+
+    return buf.slice(0, bufIdx);
+}
+
+
+// -- Decoding
+
+function Utf7IMAPDecoder(options, codec) {
+    this.iconv = codec.iconv;
+    this.inBase64 = false;
+    this.base64Accum = '';
+}
+
+var base64IMAPChars = base64Chars.slice();
+base64IMAPChars[','.charCodeAt(0)] = true;
+
+Utf7IMAPDecoder.prototype.write = function(buf) {
+    var res = "", lastI = 0,
+        inBase64 = this.inBase64,
+        base64Accum = this.base64Accum;
+
+    // The decoder is more involved as we must handle chunks in stream.
+    // It is forgiving, closer to standard UTF-7 (for example, '-' is optional at the end).
+
+    for (var i = 0; i < buf.length; i++) {
+        if (!inBase64) { // We're in direct mode.
+            // Write direct chars until '&'
+            if (buf[i] == andChar) {
+                res += this.iconv.decode(buf.slice(lastI, i), "ascii"); // Write direct chars.
+                lastI = i+1;
+                inBase64 = true;
+            }
+        } else { // We decode base64.
+            if (!base64IMAPChars[buf[i]]) { // Base64 ended.
+                if (i == lastI && buf[i] == minusChar) { // "&-" -> "&"
+                    res += "&";
+                } else {
+                    var b64str = base64Accum + buf.slice(lastI, i).toString().replace(/,/g, '/');
+                    res += this.iconv.decode(Buffer.from(b64str, 'base64'), "utf16-be");
+                }
+
+                if (buf[i] != minusChar) // Minus may be absorbed after base64.
+                    i--;
+
+                lastI = i+1;
+                inBase64 = false;
+                base64Accum = '';
+            }
+        }
+    }
+
+    if (!inBase64) {
+        res += this.iconv.decode(buf.slice(lastI), "ascii"); // Write direct chars.
+    } else {
+        var b64str = base64Accum + buf.slice(lastI).toString().replace(/,/g, '/');
+
+        var canBeDecoded = b64str.length - (b64str.length % 8); // Minimal chunk: 2 quads -> 2x3 bytes -> 3 chars.
+        base64Accum = b64str.slice(canBeDecoded); // The rest will be decoded in future.
+        b64str = b64str.slice(0, canBeDecoded);
+
+        res += this.iconv.decode(Buffer.from(b64str, 'base64'), "utf16-be");
+    }
+
+    this.inBase64 = inBase64;
+    this.base64Accum = base64Accum;
+
+    return res;
+}
+
+Utf7IMAPDecoder.prototype.end = function() {
+    var res = "";
+    if (this.inBase64 && this.base64Accum.length > 0)
+        res = this.iconv.decode(Buffer.from(this.base64Accum, 'base64'), "utf16-be");
+
+    this.inBase64 = false;
+    this.base64Accum = '';
+    return res;
+}
+
+
diff --git a/backend/node_modules/iconv-lite/lib/bom-handling.js b/backend/node_modules/iconv-lite/lib/bom-handling.js
new file mode 100644
index 0000000..1050872
--- /dev/null
+++ b/backend/node_modules/iconv-lite/lib/bom-handling.js
@@ -0,0 +1,52 @@
+"use strict";
+
+var BOMChar = '\uFEFF';
+
+exports.PrependBOM = PrependBOMWrapper
+function PrependBOMWrapper(encoder, options) {
+    this.encoder = encoder;
+    this.addBOM = true;
+}
+
+PrependBOMWrapper.prototype.write = function(str) {
+    if (this.addBOM) {
+        str = BOMChar + str;
+        this.addBOM = false;
+    }
+
+    return this.encoder.write(str);
+}
+
+PrependBOMWrapper.prototype.end = function() {
+    return this.encoder.end();
+}
+
+
+//------------------------------------------------------------------------------
+
+exports.StripBOM = StripBOMWrapper;
+function StripBOMWrapper(decoder, options) {
+    this.decoder = decoder;
+    this.pass = false;
+    this.options = options || {};
+}
+
+StripBOMWrapper.prototype.write = function(buf) {
+    var res = this.decoder.write(buf);
+    if (this.pass || !res)
+        return res;
+
+    if (res[0] === BOMChar) {
+        res = res.slice(1);
+        if (typeof this.options.stripBOM === 'function')
+            this.options.stripBOM();
+    }
+
+    this.pass = true;
+    return res;
+}
+
+StripBOMWrapper.prototype.end = function() {
+    return this.decoder.end();
+}
+
diff --git a/backend/node_modules/iconv-lite/lib/extend-node.js b/backend/node_modules/iconv-lite/lib/extend-node.js
new file mode 100644
index 0000000..87f5394
--- /dev/null
+++ b/backend/node_modules/iconv-lite/lib/extend-node.js
@@ -0,0 +1,217 @@
+"use strict";
+var Buffer = require("buffer").Buffer;
+// Note: not polyfilled with safer-buffer on a purpose, as overrides Buffer
+
+// == Extend Node primitives to use iconv-lite =================================
+
+module.exports = function (iconv) {
+    var original = undefined; // Place to keep original methods.
+
+    // Node authors rewrote Buffer internals to make it compatible with
+    // Uint8Array and we cannot patch key functions since then.
+    // Note: this does use older Buffer API on a purpose
+    iconv.supportsNodeEncodingsExtension = !(Buffer.from || new Buffer(0) instanceof Uint8Array);
+
+    iconv.extendNodeEncodings = function extendNodeEncodings() {
+        if (original) return;
+        original = {};
+
+        if (!iconv.supportsNodeEncodingsExtension) {
+            console.error("ACTION NEEDED: require('iconv-lite').extendNodeEncodings() is not supported in your version of Node");
+            console.error("See more info at https://github.com/ashtuchkin/iconv-lite/wiki/Node-v4-compatibility");
+            return;
+        }
+
+        var nodeNativeEncodings = {
+            'hex': true, 'utf8': true, 'utf-8': true, 'ascii': true, 'binary': true, 
+            'base64': true, 'ucs2': true, 'ucs-2': true, 'utf16le': true, 'utf-16le': true,
+        };
+
+        Buffer.isNativeEncoding = function(enc) {
+            return enc && nodeNativeEncodings[enc.toLowerCase()];
+        }
+
+        // -- SlowBuffer -----------------------------------------------------------
+        var SlowBuffer = require('buffer').SlowBuffer;
+
+        original.SlowBufferToString = SlowBuffer.prototype.toString;
+        SlowBuffer.prototype.toString = function(encoding, start, end) {
+            encoding = String(encoding || 'utf8').toLowerCase();
+
+            // Use native conversion when possible
+            if (Buffer.isNativeEncoding(encoding))
+                return original.SlowBufferToString.call(this, encoding, start, end);
+
+            // Otherwise, use our decoding method.
+            if (typeof start == 'undefined') start = 0;
+            if (typeof end == 'undefined') end = this.length;
+            return iconv.decode(this.slice(start, end), encoding);
+        }
+
+        original.SlowBufferWrite = SlowBuffer.prototype.write;
+        SlowBuffer.prototype.write = function(string, offset, length, encoding) {
+            // Support both (string, offset, length, encoding)
+            // and the legacy (string, encoding, offset, length)
+            if (isFinite(offset)) {
+                if (!isFinite(length)) {
+                    encoding = length;
+                    length = undefined;
+                }
+            } else {  // legacy
+                var swap = encoding;
+                encoding = offset;
+                offset = length;
+                length = swap;
+            }
+
+            offset = +offset || 0;
+            var remaining = this.length - offset;
+            if (!length) {
+                length = remaining;
+            } else {
+                length = +length;
+                if (length > remaining) {
+                    length = remaining;
+                }
+            }
+            encoding = String(encoding || 'utf8').toLowerCase();
+
+            // Use native conversion when possible
+            if (Buffer.isNativeEncoding(encoding))
+                return original.SlowBufferWrite.call(this, string, offset, length, encoding);
+
+            if (string.length > 0 && (length < 0 || offset < 0))
+                throw new RangeError('attempt to write beyond buffer bounds');
+
+            // Otherwise, use our encoding method.
+            var buf = iconv.encode(string, encoding);
+            if (buf.length < length) length = buf.length;
+            buf.copy(this, offset, 0, length);
+            return length;
+        }
+
+        // -- Buffer ---------------------------------------------------------------
+
+        original.BufferIsEncoding = Buffer.isEncoding;
+        Buffer.isEncoding = function(encoding) {
+            return Buffer.isNativeEncoding(encoding) || iconv.encodingExists(encoding);
+        }
+
+        original.BufferByteLength = Buffer.byteLength;
+        Buffer.byteLength = SlowBuffer.byteLength = function(str, encoding) {
+            encoding = String(encoding || 'utf8').toLowerCase();
+
+            // Use native conversion when possible
+            if (Buffer.isNativeEncoding(encoding))
+                return original.BufferByteLength.call(this, str, encoding);
+
+            // Slow, I know, but we don't have a better way yet.
+            return iconv.encode(str, encoding).length;
+        }
+
+        original.BufferToString = Buffer.prototype.toString;
+        Buffer.prototype.toString = function(encoding, start, end) {
+            encoding = String(encoding || 'utf8').toLowerCase();
+
+            // Use native conversion when possible
+            if (Buffer.isNativeEncoding(encoding))
+                return original.BufferToString.call(this, encoding, start, end);
+
+            // Otherwise, use our decoding method.
+            if (typeof start == 'undefined') start = 0;
+            if (typeof end == 'undefined') end = this.length;
+            return iconv.decode(this.slice(start, end), encoding);
+        }
+
+        original.BufferWrite = Buffer.prototype.write;
+        Buffer.prototype.write = function(string, offset, length, encoding) {
+            var _offset = offset, _length = length, _encoding = encoding;
+            // Support both (string, offset, length, encoding)
+            // and the legacy (string, encoding, offset, length)
+            if (isFinite(offset)) {
+                if (!isFinite(length)) {
+                    encoding = length;
+                    length = undefined;
+                }
+            } else {  // legacy
+                var swap = encoding;
+                encoding = offset;
+                offset = length;
+                length = swap;
+            }
+
+            encoding = String(encoding || 'utf8').toLowerCase();
+
+            // Use native conversion when possible
+            if (Buffer.isNativeEncoding(encoding))
+                return original.BufferWrite.call(this, string, _offset, _length, _encoding);
+
+            offset = +offset || 0;
+            var remaining = this.length - offset;
+            if (!length) {
+                length = remaining;
+            } else {
+                length = +length;
+                if (length > remaining) {
+                    length = remaining;
+                }
+            }
+
+            if (string.length > 0 && (length < 0 || offset < 0))
+                throw new RangeError('attempt to write beyond buffer bounds');
+
+            // Otherwise, use our encoding method.
+            var buf = iconv.encode(string, encoding);
+            if (buf.length < length) length = buf.length;
+            buf.copy(this, offset, 0, length);
+            return length;
+
+            // TODO: Set _charsWritten.
+        }
+
+
+        // -- Readable -------------------------------------------------------------
+        if (iconv.supportsStreams) {
+            var Readable = require('stream').Readable;
+
+            original.ReadableSetEncoding = Readable.prototype.setEncoding;
+            Readable.prototype.setEncoding = function setEncoding(enc, options) {
+                // Use our own decoder, it has the same interface.
+                // We cannot use original function as it doesn't handle BOM-s.
+                this._readableState.decoder = iconv.getDecoder(enc, options);
+                this._readableState.encoding = enc;
+            }
+
+            Readable.prototype.collect = iconv._collect;
+        }
+    }
+
+    // Remove iconv-lite Node primitive extensions.
+    iconv.undoExtendNodeEncodings = function undoExtendNodeEncodings() {
+        if (!iconv.supportsNodeEncodingsExtension)
+            return;
+        if (!original)
+            throw new Error("require('iconv-lite').undoExtendNodeEncodings(): Nothing to undo; extendNodeEncodings() is not called.")
+
+        delete Buffer.isNativeEncoding;
+
+        var SlowBuffer = require('buffer').SlowBuffer;
+
+        SlowBuffer.prototype.toString = original.SlowBufferToString;
+        SlowBuffer.prototype.write = original.SlowBufferWrite;
+
+        Buffer.isEncoding = original.BufferIsEncoding;
+        Buffer.byteLength = original.BufferByteLength;
+        Buffer.prototype.toString = original.BufferToString;
+        Buffer.prototype.write = original.BufferWrite;
+
+        if (iconv.supportsStreams) {
+            var Readable = require('stream').Readable;
+
+            Readable.prototype.setEncoding = original.ReadableSetEncoding;
+            delete Readable.prototype.collect;
+        }
+
+        original = undefined;
+    }
+}
diff --git a/backend/node_modules/iconv-lite/lib/index.d.ts b/backend/node_modules/iconv-lite/lib/index.d.ts
new file mode 100644
index 0000000..0547eb3
--- /dev/null
+++ b/backend/node_modules/iconv-lite/lib/index.d.ts
@@ -0,0 +1,24 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License.
+ *  REQUIREMENT: This definition is dependent on the @types/node definition.
+ *  Install with `npm install @types/node --save-dev`
+ *--------------------------------------------------------------------------------------------*/
+
+declare module 'iconv-lite' {
+	export function decode(buffer: Buffer, encoding: string, options?: Options): string;
+
+	export function encode(content: string, encoding: string, options?: Options): Buffer;
+
+	export function encodingExists(encoding: string): boolean;
+
+	export function decodeStream(encoding: string, options?: Options): NodeJS.ReadWriteStream;
+
+	export function encodeStream(encoding: string, options?: Options): NodeJS.ReadWriteStream;
+}
+
+export interface Options {
+    stripBOM?: boolean;
+    addBOM?: boolean;
+    defaultEncoding?: string;
+}
diff --git a/backend/node_modules/iconv-lite/lib/index.js b/backend/node_modules/iconv-lite/lib/index.js
new file mode 100644
index 0000000..5391919
--- /dev/null
+++ b/backend/node_modules/iconv-lite/lib/index.js
@@ -0,0 +1,153 @@
+"use strict";
+
+// Some environments don't have global Buffer (e.g. React Native).
+// Solution would be installing npm modules "buffer" and "stream" explicitly.
+var Buffer = require("safer-buffer").Buffer;
+
+var bomHandling = require("./bom-handling"),
+    iconv = module.exports;
+
+// All codecs and aliases are kept here, keyed by encoding name/alias.
+// They are lazy loaded in `iconv.getCodec` from `encodings/index.js`.
+iconv.encodings = null;
+
+// Characters emitted in case of error.
+iconv.defaultCharUnicode = '�';
+iconv.defaultCharSingleByte = '?';
+
+// Public API.
+iconv.encode = function encode(str, encoding, options) {
+    str = "" + (str || ""); // Ensure string.
+
+    var encoder = iconv.getEncoder(encoding, options);
+
+    var res = encoder.write(str);
+    var trail = encoder.end();
+    
+    return (trail && trail.length > 0) ? Buffer.concat([res, trail]) : res;
+}
+
+iconv.decode = function decode(buf, encoding, options) {
+    if (typeof buf === 'string') {
+        if (!iconv.skipDecodeWarning) {
+            console.error('Iconv-lite warning: decode()-ing strings is deprecated. Refer to https://github.com/ashtuchkin/iconv-lite/wiki/Use-Buffers-when-decoding');
+            iconv.skipDecodeWarning = true;
+        }
+
+        buf = Buffer.from("" + (buf || ""), "binary"); // Ensure buffer.
+    }
+
+    var decoder = iconv.getDecoder(encoding, options);
+
+    var res = decoder.write(buf);
+    var trail = decoder.end();
+
+    return trail ? (res + trail) : res;
+}
+
+iconv.encodingExists = function encodingExists(enc) {
+    try {
+        iconv.getCodec(enc);
+        return true;
+    } catch (e) {
+        return false;
+    }
+}
+
+// Legacy aliases to convert functions
+iconv.toEncoding = iconv.encode;
+iconv.fromEncoding = iconv.decode;
+
+// Search for a codec in iconv.encodings. Cache codec data in iconv._codecDataCache.
+iconv._codecDataCache = {};
+iconv.getCodec = function getCodec(encoding) {
+    if (!iconv.encodings)
+        iconv.encodings = require("../encodings"); // Lazy load all encoding definitions.
+    
+    // Canonicalize encoding name: strip all non-alphanumeric chars and appended year.
+    var enc = iconv._canonicalizeEncoding(encoding);
+
+    // Traverse iconv.encodings to find actual codec.
+    var codecOptions = {};
+    while (true) {
+        var codec = iconv._codecDataCache[enc];
+        if (codec)
+            return codec;
+
+        var codecDef = iconv.encodings[enc];
+
+        switch (typeof codecDef) {
+            case "string": // Direct alias to other encoding.
+                enc = codecDef;
+                break;
+
+            case "object": // Alias with options. Can be layered.
+                for (var key in codecDef)
+                    codecOptions[key] = codecDef[key];
+
+                if (!codecOptions.encodingName)
+                    codecOptions.encodingName = enc;
+                
+                enc = codecDef.type;
+                break;
+
+            case "function": // Codec itself.
+                if (!codecOptions.encodingName)
+                    codecOptions.encodingName = enc;
+
+                // The codec function must load all tables and return object with .encoder and .decoder methods.
+                // It'll be called only once (for each different options object).
+                codec = new codecDef(codecOptions, iconv);
+
+                iconv._codecDataCache[codecOptions.encodingName] = codec; // Save it to be reused later.
+                return codec;
+
+            default:
+                throw new Error("Encoding not recognized: '" + encoding + "' (searched as: '"+enc+"')");
+        }
+    }
+}
+
+iconv._canonicalizeEncoding = function(encoding) {
+    // Canonicalize encoding name: strip all non-alphanumeric chars and appended year.
+    return (''+encoding).toLowerCase().replace(/:\d{4}$|[^0-9a-z]/g, "");
+}
+
+iconv.getEncoder = function getEncoder(encoding, options) {
+    var codec = iconv.getCodec(encoding),
+        encoder = new codec.encoder(options, codec);
+
+    if (codec.bomAware && options && options.addBOM)
+        encoder = new bomHandling.PrependBOM(encoder, options);
+
+    return encoder;
+}
+
+iconv.getDecoder = function getDecoder(encoding, options) {
+    var codec = iconv.getCodec(encoding),
+        decoder = new codec.decoder(options, codec);
+
+    if (codec.bomAware && !(options && options.stripBOM === false))
+        decoder = new bomHandling.StripBOM(decoder, options);
+
+    return decoder;
+}
+
+
+// Load extensions in Node. All of them are omitted in Browserify build via 'browser' field in package.json.
+var nodeVer = typeof process !== 'undefined' && process.versions && process.versions.node;
+if (nodeVer) {
+
+    // Load streaming support in Node v0.10+
+    var nodeVerArr = nodeVer.split(".").map(Number);
+    if (nodeVerArr[0] > 0 || nodeVerArr[1] >= 10) {
+        require("./streams")(iconv);
+    }
+
+    // Load Node primitive extensions.
+    require("./extend-node")(iconv);
+}
+
+if ("Ā" != "\u0100") {
+    console.error("iconv-lite warning: javascript files use encoding different from utf-8. See https://github.com/ashtuchkin/iconv-lite/wiki/Javascript-source-file-encodings for more info.");
+}
diff --git a/backend/node_modules/iconv-lite/lib/streams.js b/backend/node_modules/iconv-lite/lib/streams.js
new file mode 100644
index 0000000..4409552
--- /dev/null
+++ b/backend/node_modules/iconv-lite/lib/streams.js
@@ -0,0 +1,121 @@
+"use strict";
+
+var Buffer = require("buffer").Buffer,
+    Transform = require("stream").Transform;
+
+
+// == Exports ==================================================================
+module.exports = function(iconv) {
+    
+    // Additional Public API.
+    iconv.encodeStream = function encodeStream(encoding, options) {
+        return new IconvLiteEncoderStream(iconv.getEncoder(encoding, options), options);
+    }
+
+    iconv.decodeStream = function decodeStream(encoding, options) {
+        return new IconvLiteDecoderStream(iconv.getDecoder(encoding, options), options);
+    }
+
+    iconv.supportsStreams = true;
+
+
+    // Not published yet.
+    iconv.IconvLiteEncoderStream = IconvLiteEncoderStream;
+    iconv.IconvLiteDecoderStream = IconvLiteDecoderStream;
+    iconv._collect = IconvLiteDecoderStream.prototype.collect;
+};
+
+
+// == Encoder stream =======================================================
+function IconvLiteEncoderStream(conv, options) {
+    this.conv = conv;
+    options = options || {};
+    options.decodeStrings = false; // We accept only strings, so we don't need to decode them.
+    Transform.call(this, options);
+}
+
+IconvLiteEncoderStream.prototype = Object.create(Transform.prototype, {
+    constructor: { value: IconvLiteEncoderStream }
+});
+
+IconvLiteEncoderStream.prototype._transform = function(chunk, encoding, done) {
+    if (typeof chunk != 'string')
+        return done(new Error("Iconv encoding stream needs strings as its input."));
+    try {
+        var res = this.conv.write(chunk);
+        if (res && res.length) this.push(res);
+        done();
+    }
+    catch (e) {
+        done(e);
+    }
+}
+
+IconvLiteEncoderStream.prototype._flush = function(done) {
+    try {
+        var res = this.conv.end();
+        if (res && res.length) this.push(res);
+        done();
+    }
+    catch (e) {
+        done(e);
+    }
+}
+
+IconvLiteEncoderStream.prototype.collect = function(cb) {
+    var chunks = [];
+    this.on('error', cb);
+    this.on('data', function(chunk) { chunks.push(chunk); });
+    this.on('end', function() {
+        cb(null, Buffer.concat(chunks));
+    });
+    return this;
+}
+
+
+// == Decoder stream =======================================================
+function IconvLiteDecoderStream(conv, options) {
+    this.conv = conv;
+    options = options || {};
+    options.encoding = this.encoding = 'utf8'; // We output strings.
+    Transform.call(this, options);
+}
+
+IconvLiteDecoderStream.prototype = Object.create(Transform.prototype, {
+    constructor: { value: IconvLiteDecoderStream }
+});
+
+IconvLiteDecoderStream.prototype._transform = function(chunk, encoding, done) {
+    if (!Buffer.isBuffer(chunk))
+        return done(new Error("Iconv decoding stream needs buffers as its input."));
+    try {
+        var res = this.conv.write(chunk);
+        if (res && res.length) this.push(res, this.encoding);
+        done();
+    }
+    catch (e) {
+        done(e);
+    }
+}
+
+IconvLiteDecoderStream.prototype._flush = function(done) {
+    try {
+        var res = this.conv.end();
+        if (res && res.length) this.push(res, this.encoding);                
+        done();
+    }
+    catch (e) {
+        done(e);
+    }
+}
+
+IconvLiteDecoderStream.prototype.collect = function(cb) {
+    var res = '';
+    this.on('error', cb);
+    this.on('data', function(chunk) { res += chunk; });
+    this.on('end', function() {
+        cb(null, res);
+    });
+    return this;
+}
+
diff --git a/backend/node_modules/iconv-lite/package.json b/backend/node_modules/iconv-lite/package.json
new file mode 100644
index 0000000..a7c74fc
--- /dev/null
+++ b/backend/node_modules/iconv-lite/package.json
@@ -0,0 +1,46 @@
+{
+    "name": "iconv-lite",
+    "description": "Convert character encodings in pure javascript.",
+    "version": "0.4.24",
+    "license": "MIT",
+    "keywords": [
+        "iconv",
+        "convert",
+        "charset",
+        "icu"
+    ],
+    "author": "Alexander Shtuchkin <ashtuchkin@gmail.com>",
+    "main": "./lib/index.js",
+    "typings": "./lib/index.d.ts",
+    "homepage": "https://github.com/ashtuchkin/iconv-lite",
+    "bugs": "https://github.com/ashtuchkin/iconv-lite/issues",
+    "repository": {
+        "type": "git",
+        "url": "git://github.com/ashtuchkin/iconv-lite.git"
+    },
+    "engines": {
+        "node": ">=0.10.0"
+    },
+    "scripts": {
+        "coverage": "istanbul cover _mocha -- --grep .",
+        "coverage-open": "open coverage/lcov-report/index.html",
+        "test": "mocha --reporter spec --grep ."
+    },
+    "browser": {
+        "./lib/extend-node": false,
+        "./lib/streams": false
+    },
+    "devDependencies": {
+        "mocha": "^3.1.0",
+        "request": "~2.87.0",
+        "unorm": "*",
+        "errto": "*",
+        "async": "*",
+        "istanbul": "*",
+        "semver": "*",
+        "iconv": "*"
+    },
+    "dependencies": {
+        "safer-buffer": ">= 2.1.2 < 3"
+    }
+}
diff --git a/backend/node_modules/inherits/LICENSE b/backend/node_modules/inherits/LICENSE
new file mode 100644
index 0000000..dea3013
--- /dev/null
+++ b/backend/node_modules/inherits/LICENSE
@@ -0,0 +1,16 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+
diff --git a/backend/node_modules/inherits/README.md b/backend/node_modules/inherits/README.md
new file mode 100644
index 0000000..b1c5665
--- /dev/null
+++ b/backend/node_modules/inherits/README.md
@@ -0,0 +1,42 @@
+Browser-friendly inheritance fully compatible with standard node.js
+[inherits](http://nodejs.org/api/util.html#util_util_inherits_constructor_superconstructor).
+
+This package exports standard `inherits` from node.js `util` module in
+node environment, but also provides alternative browser-friendly
+implementation through [browser
+field](https://gist.github.com/shtylman/4339901). Alternative
+implementation is a literal copy of standard one located in standalone
+module to avoid requiring of `util`. It also has a shim for old
+browsers with no `Object.create` support.
+
+While keeping you sure you are using standard `inherits`
+implementation in node.js environment, it allows bundlers such as
+[browserify](https://github.com/substack/node-browserify) to not
+include full `util` package to your client code if all you need is
+just `inherits` function. It worth, because browser shim for `util`
+package is large and `inherits` is often the single function you need
+from it.
+
+It's recommended to use this package instead of
+`require('util').inherits` for any code that has chances to be used
+not only in node.js but in browser too.
+
+## usage
+
+```js
+var inherits = require('inherits');
+// then use exactly as the standard one
+```
+
+## note on version ~1.0
+
+Version ~1.0 had completely different motivation and is not compatible
+neither with 2.0 nor with standard node.js `inherits`.
+
+If you are using version ~1.0 and planning to switch to ~2.0, be
+careful:
+
+* new version uses `super_` instead of `super` for referencing
+  superclass
+* new version overwrites current prototype while old one preserves any
+  existing fields on it
diff --git a/backend/node_modules/inherits/inherits.js b/backend/node_modules/inherits/inherits.js
new file mode 100644
index 0000000..f71f2d9
--- /dev/null
+++ b/backend/node_modules/inherits/inherits.js
@@ -0,0 +1,9 @@
+try {
+  var util = require('util');
+  /* istanbul ignore next */
+  if (typeof util.inherits !== 'function') throw '';
+  module.exports = util.inherits;
+} catch (e) {
+  /* istanbul ignore next */
+  module.exports = require('./inherits_browser.js');
+}
diff --git a/backend/node_modules/inherits/inherits_browser.js b/backend/node_modules/inherits/inherits_browser.js
new file mode 100644
index 0000000..86bbb3d
--- /dev/null
+++ b/backend/node_modules/inherits/inherits_browser.js
@@ -0,0 +1,27 @@
+if (typeof Object.create === 'function') {
+  // implementation from standard node.js 'util' module
+  module.exports = function inherits(ctor, superCtor) {
+    if (superCtor) {
+      ctor.super_ = superCtor
+      ctor.prototype = Object.create(superCtor.prototype, {
+        constructor: {
+          value: ctor,
+          enumerable: false,
+          writable: true,
+          configurable: true
+        }
+      })
+    }
+  };
+} else {
+  // old school shim for old browsers
+  module.exports = function inherits(ctor, superCtor) {
+    if (superCtor) {
+      ctor.super_ = superCtor
+      var TempCtor = function () {}
+      TempCtor.prototype = superCtor.prototype
+      ctor.prototype = new TempCtor()
+      ctor.prototype.constructor = ctor
+    }
+  }
+}
diff --git a/backend/node_modules/inherits/package.json b/backend/node_modules/inherits/package.json
new file mode 100644
index 0000000..37b4366
--- /dev/null
+++ b/backend/node_modules/inherits/package.json
@@ -0,0 +1,29 @@
+{
+  "name": "inherits",
+  "description": "Browser-friendly inheritance fully compatible with standard node.js inherits()",
+  "version": "2.0.4",
+  "keywords": [
+    "inheritance",
+    "class",
+    "klass",
+    "oop",
+    "object-oriented",
+    "inherits",
+    "browser",
+    "browserify"
+  ],
+  "main": "./inherits.js",
+  "browser": "./inherits_browser.js",
+  "repository": "git://github.com/isaacs/inherits",
+  "license": "ISC",
+  "scripts": {
+    "test": "tap"
+  },
+  "devDependencies": {
+    "tap": "^14.2.4"
+  },
+  "files": [
+    "inherits.js",
+    "inherits_browser.js"
+  ]
+}
diff --git a/backend/node_modules/ipaddr.js/LICENSE b/backend/node_modules/ipaddr.js/LICENSE
new file mode 100644
index 0000000..f6b37b5
--- /dev/null
+++ b/backend/node_modules/ipaddr.js/LICENSE
@@ -0,0 +1,19 @@
+Copyright (C) 2011-2017 whitequark <whitequark@whitequark.org>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/ipaddr.js/README.md b/backend/node_modules/ipaddr.js/README.md
new file mode 100644
index 0000000..f57725b
--- /dev/null
+++ b/backend/node_modules/ipaddr.js/README.md
@@ -0,0 +1,233 @@
+# ipaddr.js — an IPv6 and IPv4 address manipulation library [![Build Status](https://travis-ci.org/whitequark/ipaddr.js.svg)](https://travis-ci.org/whitequark/ipaddr.js)
+
+ipaddr.js is a small (1.9K minified and gzipped) library for manipulating
+IP addresses in JavaScript environments. It runs on both CommonJS runtimes
+(e.g. [nodejs]) and in a web browser.
+
+ipaddr.js allows you to verify and parse string representation of an IP
+address, match it against a CIDR range or range list, determine if it falls
+into some reserved ranges (examples include loopback and private ranges),
+and convert between IPv4 and IPv4-mapped IPv6 addresses.
+
+[nodejs]: http://nodejs.org
+
+## Installation
+
+`npm install ipaddr.js`
+
+or
+
+`bower install ipaddr.js`
+
+## API
+
+ipaddr.js defines one object in the global scope: `ipaddr`. In CommonJS,
+it is exported from the module:
+
+```js
+var ipaddr = require('ipaddr.js');
+```
+
+The API consists of several global methods and two classes: ipaddr.IPv6 and ipaddr.IPv4.
+
+### Global methods
+
+There are three global methods defined: `ipaddr.isValid`, `ipaddr.parse` and
+`ipaddr.process`. All of them receive a string as a single parameter.
+
+The `ipaddr.isValid` method returns `true` if the address is a valid IPv4 or
+IPv6 address, and `false` otherwise. It does not throw any exceptions.
+
+The `ipaddr.parse` method returns an object representing the IP address,
+or throws an `Error` if the passed string is not a valid representation of an
+IP address.
+
+The `ipaddr.process` method works just like the `ipaddr.parse` one, but it
+automatically converts IPv4-mapped IPv6 addresses to their IPv4 counterparts
+before returning. It is useful when you have a Node.js instance listening
+on an IPv6 socket, and the `net.ivp6.bindv6only` sysctl parameter (or its
+equivalent on non-Linux OS) is set to 0. In this case, you can accept IPv4
+connections on your IPv6-only socket, but the remote address will be mangled.
+Use `ipaddr.process` method to automatically demangle it.
+
+### Object representation
+
+Parsing methods return an object which descends from `ipaddr.IPv6` or
+`ipaddr.IPv4`. These objects share some properties, but most of them differ.
+
+#### Shared properties
+
+One can determine the type of address by calling `addr.kind()`. It will return
+either `"ipv6"` or `"ipv4"`.
+
+An address can be converted back to its string representation with `addr.toString()`.
+Note that this method:
+ * does not return the original string used to create the object (in fact, there is
+   no way of getting that string)
+ * returns a compact representation (when it is applicable)
+
+A `match(range, bits)` method can be used to check if the address falls into a
+certain CIDR range.
+Note that an address can be (obviously) matched only against an address of the same type.
+
+For example:
+
+```js
+var addr = ipaddr.parse("2001:db8:1234::1");
+var range = ipaddr.parse("2001:db8::");
+
+addr.match(range, 32); // => true
+```
+
+Alternatively, `match` can also be called as `match([range, bits])`. In this way,
+it can be used together with the `parseCIDR(string)` method, which parses an IP
+address together with a CIDR range.
+
+For example:
+
+```js
+var addr = ipaddr.parse("2001:db8:1234::1");
+
+addr.match(ipaddr.parseCIDR("2001:db8::/32")); // => true
+```
+
+A `range()` method returns one of predefined names for several special ranges defined
+by IP protocols. The exact names (and their respective CIDR ranges) can be looked up
+in the source: [IPv6 ranges] and [IPv4 ranges]. Some common ones include `"unicast"`
+(the default one) and `"reserved"`.
+
+You can match against your own range list by using
+`ipaddr.subnetMatch(address, rangeList, defaultName)` method. It can work with a mix of IPv6 or IPv4 addresses, and accepts a name-to-subnet map as the range list. For example:
+
+```js
+var rangeList = {
+  documentationOnly: [ ipaddr.parse('2001:db8::'), 32 ],
+  tunnelProviders: [
+    [ ipaddr.parse('2001:470::'), 32 ], // he.net
+    [ ipaddr.parse('2001:5c0::'), 32 ]  // freenet6
+  ]
+};
+ipaddr.subnetMatch(ipaddr.parse('2001:470:8:66::1'), rangeList, 'unknown'); // => "tunnelProviders"
+```
+
+The addresses can be converted to their byte representation with `toByteArray()`.
+(Actually, JavaScript mostly does not know about byte buffers. They are emulated with
+arrays of numbers, each in range of 0..255.)
+
+```js
+var bytes = ipaddr.parse('2a00:1450:8007::68').toByteArray(); // ipv6.google.com
+bytes // => [42, 0x00, 0x14, 0x50, 0x80, 0x07, 0x00, <zeroes...>, 0x00, 0x68 ]
+```
+
+The `ipaddr.IPv4` and `ipaddr.IPv6` objects have some methods defined, too. All of them
+have the same interface for both protocols, and are similar to global methods.
+
+`ipaddr.IPvX.isValid(string)` can be used to check if the string is a valid address
+for particular protocol, and `ipaddr.IPvX.parse(string)` is the error-throwing parser.
+
+`ipaddr.IPvX.isValid(string)` uses the same format for parsing as the POSIX `inet_ntoa` function, which accepts unusual formats like `0xc0.168.1.1` or `0x10000000`. The function `ipaddr.IPv4.isValidFourPartDecimal(string)` validates the IPv4 address and also ensures that it is written in four-part decimal format.
+
+[IPv6 ranges]: https://github.com/whitequark/ipaddr.js/blob/master/src/ipaddr.coffee#L186
+[IPv4 ranges]: https://github.com/whitequark/ipaddr.js/blob/master/src/ipaddr.coffee#L71
+
+#### IPv6 properties
+
+Sometimes you will want to convert IPv6 not to a compact string representation (with
+the `::` substitution); the `toNormalizedString()` method will return an address where
+all zeroes are explicit.
+
+For example:
+
+```js
+var addr = ipaddr.parse("2001:0db8::0001");
+addr.toString(); // => "2001:db8::1"
+addr.toNormalizedString(); // => "2001:db8:0:0:0:0:0:1"
+```
+
+The `isIPv4MappedAddress()` method will return `true` if this address is an IPv4-mapped
+one, and `toIPv4Address()` will return an IPv4 object address.
+
+To access the underlying binary representation of the address, use `addr.parts`.
+
+```js
+var addr = ipaddr.parse("2001:db8:10::1234:DEAD");
+addr.parts // => [0x2001, 0xdb8, 0x10, 0, 0, 0, 0x1234, 0xdead]
+```
+
+A IPv6 zone index can be accessed via `addr.zoneId`:
+
+```js
+var addr = ipaddr.parse("2001:db8::%eth0");
+addr.zoneId // => 'eth0'
+```
+
+#### IPv4 properties
+
+`toIPv4MappedAddress()` will return a corresponding IPv4-mapped IPv6 address.
+
+To access the underlying representation of the address, use `addr.octets`.
+
+```js
+var addr = ipaddr.parse("192.168.1.1");
+addr.octets // => [192, 168, 1, 1]
+```
+
+`prefixLengthFromSubnetMask()` will return a CIDR prefix length for a valid IPv4 netmask or
+null if the netmask is not valid.
+
+```js
+ipaddr.IPv4.parse('255.255.255.240').prefixLengthFromSubnetMask() == 28
+ipaddr.IPv4.parse('255.192.164.0').prefixLengthFromSubnetMask()  == null
+```
+
+`subnetMaskFromPrefixLength()` will return an IPv4 netmask for a valid CIDR prefix length.
+
+```js
+ipaddr.IPv4.subnetMaskFromPrefixLength(24) == "255.255.255.0"
+ipaddr.IPv4.subnetMaskFromPrefixLength(29) == "255.255.255.248"
+```
+
+`broadcastAddressFromCIDR()` will return the broadcast address for a given IPv4 interface and netmask in CIDR notation.
+```js
+ipaddr.IPv4.broadcastAddressFromCIDR("172.0.0.1/24") == "172.0.0.255"
+```
+`networkAddressFromCIDR()` will return the network address for a given IPv4 interface and netmask in CIDR notation.
+```js
+ipaddr.IPv4.networkAddressFromCIDR("172.0.0.1/24") == "172.0.0.0"
+```
+
+#### Conversion
+
+IPv4 and IPv6 can be converted bidirectionally to and from network byte order (MSB) byte arrays.
+
+The `fromByteArray()` method will take an array and create an appropriate IPv4 or IPv6 object
+if the input satisfies the requirements. For IPv4 it has to be an array of four 8-bit values,
+while for IPv6 it has to be an array of sixteen 8-bit values.
+
+For example:
+```js
+var addr = ipaddr.fromByteArray([0x7f, 0, 0, 1]);
+addr.toString(); // => "127.0.0.1"
+```
+
+or
+
+```js
+var addr = ipaddr.fromByteArray([0x20, 1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1])
+addr.toString(); // => "2001:db8::1"
+```
+
+Both objects also offer a `toByteArray()` method, which returns an array in network byte order (MSB).
+
+For example:
+```js
+var addr = ipaddr.parse("127.0.0.1");
+addr.toByteArray(); // => [0x7f, 0, 0, 1]
+```
+
+or
+
+```js
+var addr = ipaddr.parse("2001:db8::1");
+addr.toByteArray(); // => [0x20, 1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1]
+```
diff --git a/backend/node_modules/ipaddr.js/ipaddr.min.js b/backend/node_modules/ipaddr.js/ipaddr.min.js
new file mode 100644
index 0000000..b54a7cc
--- /dev/null
+++ b/backend/node_modules/ipaddr.js/ipaddr.min.js
@@ -0,0 +1 @@
+(function(){var r,t,n,e,i,o,a,s;t={},s=this,"undefined"!=typeof module&&null!==module&&module.exports?module.exports=t:s.ipaddr=t,a=function(r,t,n,e){var i,o;if(r.length!==t.length)throw new Error("ipaddr: cannot match CIDR for objects with different lengths");for(i=0;e>0;){if((o=n-e)<0&&(o=0),r[i]>>o!=t[i]>>o)return!1;e-=n,i+=1}return!0},t.subnetMatch=function(r,t,n){var e,i,o,a,s;null==n&&(n="unicast");for(o in t)for(!(a=t[o])[0]||a[0]instanceof Array||(a=[a]),e=0,i=a.length;e<i;e++)if(s=a[e],r.kind()===s[0].kind()&&r.match.apply(r,s))return o;return n},t.IPv4=function(){function r(r){var t,n,e;if(4!==r.length)throw new Error("ipaddr: ipv4 octet count should be 4");for(t=0,n=r.length;t<n;t++)if(!(0<=(e=r[t])&&e<=255))throw new Error("ipaddr: ipv4 octet should fit in 8 bits");this.octets=r}return r.prototype.kind=function(){return"ipv4"},r.prototype.toString=function(){return this.octets.join(".")},r.prototype.toNormalizedString=function(){return this.toString()},r.prototype.toByteArray=function(){return this.octets.slice(0)},r.prototype.match=function(r,t){var n;if(void 0===t&&(r=(n=r)[0],t=n[1]),"ipv4"!==r.kind())throw new Error("ipaddr: cannot match ipv4 address with non-ipv4 one");return a(this.octets,r.octets,8,t)},r.prototype.SpecialRanges={unspecified:[[new r([0,0,0,0]),8]],broadcast:[[new r([255,255,255,255]),32]],multicast:[[new r([224,0,0,0]),4]],linkLocal:[[new r([169,254,0,0]),16]],loopback:[[new r([127,0,0,0]),8]],carrierGradeNat:[[new r([100,64,0,0]),10]],private:[[new r([10,0,0,0]),8],[new r([172,16,0,0]),12],[new r([192,168,0,0]),16]],reserved:[[new r([192,0,0,0]),24],[new r([192,0,2,0]),24],[new r([192,88,99,0]),24],[new r([198,51,100,0]),24],[new r([203,0,113,0]),24],[new r([240,0,0,0]),4]]},r.prototype.range=function(){return t.subnetMatch(this,this.SpecialRanges)},r.prototype.toIPv4MappedAddress=function(){return t.IPv6.parse("::ffff:"+this.toString())},r.prototype.prefixLengthFromSubnetMask=function(){var r,t,n,e,i,o,a;for(a={0:8,128:7,192:6,224:5,240:4,248:3,252:2,254:1,255:0},r=0,i=!1,t=n=3;n>=0;t=n+=-1){if(!((e=this.octets[t])in a))return null;if(o=a[e],i&&0!==o)return null;8!==o&&(i=!0),r+=o}return 32-r},r}(),n="(0?\\d+|0x[a-f0-9]+)",e={fourOctet:new RegExp("^"+n+"\\."+n+"\\."+n+"\\."+n+"$","i"),longValue:new RegExp("^"+n+"$","i")},t.IPv4.parser=function(r){var t,n,i,o,a;if(n=function(r){return"0"===r[0]&&"x"!==r[1]?parseInt(r,8):parseInt(r)},t=r.match(e.fourOctet))return function(){var r,e,o,a;for(a=[],r=0,e=(o=t.slice(1,6)).length;r<e;r++)i=o[r],a.push(n(i));return a}();if(t=r.match(e.longValue)){if((a=n(t[1]))>4294967295||a<0)throw new Error("ipaddr: address outside defined range");return function(){var r,t;for(t=[],o=r=0;r<=24;o=r+=8)t.push(a>>o&255);return t}().reverse()}return null},t.IPv6=function(){function r(r,t){var n,e,i,o,a,s;if(16===r.length)for(this.parts=[],n=e=0;e<=14;n=e+=2)this.parts.push(r[n]<<8|r[n+1]);else{if(8!==r.length)throw new Error("ipaddr: ipv6 part count should be 8 or 16");this.parts=r}for(i=0,o=(s=this.parts).length;i<o;i++)if(!(0<=(a=s[i])&&a<=65535))throw new Error("ipaddr: ipv6 part should fit in 16 bits");t&&(this.zoneId=t)}return r.prototype.kind=function(){return"ipv6"},r.prototype.toString=function(){return this.toNormalizedString().replace(/((^|:)(0(:|$))+)/,"::")},r.prototype.toRFC5952String=function(){var r,t,n,e,i;for(e=/((^|:)(0(:|$)){2,})/g,i=this.toNormalizedString(),r=0,t=-1;n=e.exec(i);)n[0].length>t&&(r=n.index,t=n[0].length);return t<0?i:i.substring(0,r)+"::"+i.substring(r+t)},r.prototype.toByteArray=function(){var r,t,n,e,i;for(r=[],t=0,n=(i=this.parts).length;t<n;t++)e=i[t],r.push(e>>8),r.push(255&e);return r},r.prototype.toNormalizedString=function(){var r,t,n;return r=function(){var r,n,e,i;for(i=[],r=0,n=(e=this.parts).length;r<n;r++)t=e[r],i.push(t.toString(16));return i}.call(this).join(":"),n="",this.zoneId&&(n="%"+this.zoneId),r+n},r.prototype.toFixedLengthString=function(){var r,t,n;return r=function(){var r,n,e,i;for(i=[],r=0,n=(e=this.parts).length;r<n;r++)t=e[r],i.push(t.toString(16).padStart(4,"0"));return i}.call(this).join(":"),n="",this.zoneId&&(n="%"+this.zoneId),r+n},r.prototype.match=function(r,t){var n;if(void 0===t&&(r=(n=r)[0],t=n[1]),"ipv6"!==r.kind())throw new Error("ipaddr: cannot match ipv6 address with non-ipv6 one");return a(this.parts,r.parts,16,t)},r.prototype.SpecialRanges={unspecified:[new r([0,0,0,0,0,0,0,0]),128],linkLocal:[new r([65152,0,0,0,0,0,0,0]),10],multicast:[new r([65280,0,0,0,0,0,0,0]),8],loopback:[new r([0,0,0,0,0,0,0,1]),128],uniqueLocal:[new r([64512,0,0,0,0,0,0,0]),7],ipv4Mapped:[new r([0,0,0,0,0,65535,0,0]),96],rfc6145:[new r([0,0,0,0,65535,0,0,0]),96],rfc6052:[new r([100,65435,0,0,0,0,0,0]),96],"6to4":[new r([8194,0,0,0,0,0,0,0]),16],teredo:[new r([8193,0,0,0,0,0,0,0]),32],reserved:[[new r([8193,3512,0,0,0,0,0,0]),32]]},r.prototype.range=function(){return t.subnetMatch(this,this.SpecialRanges)},r.prototype.isIPv4MappedAddress=function(){return"ipv4Mapped"===this.range()},r.prototype.toIPv4Address=function(){var r,n,e;if(!this.isIPv4MappedAddress())throw new Error("ipaddr: trying to convert a generic ipv6 address to ipv4");return e=this.parts.slice(-2),r=e[0],n=e[1],new t.IPv4([r>>8,255&r,n>>8,255&n])},r.prototype.prefixLengthFromSubnetMask=function(){var r,t,n,e,i,o,a;for(a={0:16,32768:15,49152:14,57344:13,61440:12,63488:11,64512:10,65024:9,65280:8,65408:7,65472:6,65504:5,65520:4,65528:3,65532:2,65534:1,65535:0},r=0,i=!1,t=n=7;n>=0;t=n+=-1){if(!((e=this.parts[t])in a))return null;if(o=a[e],i&&0!==o)return null;16!==o&&(i=!0),r+=o}return 128-r},r}(),i="(?:[0-9a-f]+::?)+",o={zoneIndex:new RegExp("%[0-9a-z]{1,}","i"),native:new RegExp("^(::)?("+i+")?([0-9a-f]+)?(::)?(%[0-9a-z]{1,})?$","i"),transitional:new RegExp("^((?:"+i+")|(?:::)(?:"+i+")?)"+n+"\\."+n+"\\."+n+"\\."+n+"(%[0-9a-z]{1,})?$","i")},r=function(r,t){var n,e,i,a,s,p;if(r.indexOf("::")!==r.lastIndexOf("::"))return null;for((p=(r.match(o.zoneIndex)||[])[0])&&(p=p.substring(1),r=r.replace(/%.+$/,"")),n=0,e=-1;(e=r.indexOf(":",e+1))>=0;)n++;if("::"===r.substr(0,2)&&n--,"::"===r.substr(-2,2)&&n--,n>t)return null;for(s=t-n,a=":";s--;)a+="0:";return":"===(r=r.replace("::",a))[0]&&(r=r.slice(1)),":"===r[r.length-1]&&(r=r.slice(0,-1)),t=function(){var t,n,e,o;for(o=[],t=0,n=(e=r.split(":")).length;t<n;t++)i=e[t],o.push(parseInt(i,16));return o}(),{parts:t,zoneId:p}},t.IPv6.parser=function(t){var n,e,i,a,s,p,u;if(o.native.test(t))return r(t,8);if((a=t.match(o.transitional))&&(u=a[6]||"",(n=r(a[1].slice(0,-1)+u,6)).parts)){for(e=0,i=(p=[parseInt(a[2]),parseInt(a[3]),parseInt(a[4]),parseInt(a[5])]).length;e<i;e++)if(!(0<=(s=p[e])&&s<=255))return null;return n.parts.push(p[0]<<8|p[1]),n.parts.push(p[2]<<8|p[3]),{parts:n.parts,zoneId:n.zoneId}}return null},t.IPv4.isIPv4=t.IPv6.isIPv6=function(r){return null!==this.parser(r)},t.IPv4.isValid=function(r){try{return new this(this.parser(r)),!0}catch(r){return r,!1}},t.IPv4.isValidFourPartDecimal=function(r){return!(!t.IPv4.isValid(r)||!r.match(/^(0|[1-9]\d*)(\.(0|[1-9]\d*)){3}$/))},t.IPv6.isValid=function(r){var t;if("string"==typeof r&&-1===r.indexOf(":"))return!1;try{return t=this.parser(r),new this(t.parts,t.zoneId),!0}catch(r){return r,!1}},t.IPv4.parse=function(r){var t;if(null===(t=this.parser(r)))throw new Error("ipaddr: string is not formatted like ip address");return new this(t)},t.IPv6.parse=function(r){var t;if(null===(t=this.parser(r)).parts)throw new Error("ipaddr: string is not formatted like ip address");return new this(t.parts,t.zoneId)},t.IPv4.parseCIDR=function(r){var t,n,e;if((n=r.match(/^(.+)\/(\d+)$/))&&(t=parseInt(n[2]))>=0&&t<=32)return e=[this.parse(n[1]),t],Object.defineProperty(e,"toString",{value:function(){return this.join("/")}}),e;throw new Error("ipaddr: string is not formatted like an IPv4 CIDR range")},t.IPv4.subnetMaskFromPrefixLength=function(r){var t,n,e;if((r=parseInt(r))<0||r>32)throw new Error("ipaddr: invalid IPv4 prefix length");for(e=[0,0,0,0],n=0,t=Math.floor(r/8);n<t;)e[n]=255,n++;return t<4&&(e[t]=Math.pow(2,r%8)-1<<8-r%8),new this(e)},t.IPv4.broadcastAddressFromCIDR=function(r){var t,n,e,i,o;try{for(e=(t=this.parseCIDR(r))[0].toByteArray(),o=this.subnetMaskFromPrefixLength(t[1]).toByteArray(),i=[],n=0;n<4;)i.push(parseInt(e[n],10)|255^parseInt(o[n],10)),n++;return new this(i)}catch(r){throw r,new Error("ipaddr: the address does not have IPv4 CIDR format")}},t.IPv4.networkAddressFromCIDR=function(r){var t,n,e,i,o;try{for(e=(t=this.parseCIDR(r))[0].toByteArray(),o=this.subnetMaskFromPrefixLength(t[1]).toByteArray(),i=[],n=0;n<4;)i.push(parseInt(e[n],10)&parseInt(o[n],10)),n++;return new this(i)}catch(r){throw r,new Error("ipaddr: the address does not have IPv4 CIDR format")}},t.IPv6.parseCIDR=function(r){var t,n,e;if((n=r.match(/^(.+)\/(\d+)$/))&&(t=parseInt(n[2]))>=0&&t<=128)return e=[this.parse(n[1]),t],Object.defineProperty(e,"toString",{value:function(){return this.join("/")}}),e;throw new Error("ipaddr: string is not formatted like an IPv6 CIDR range")},t.isValid=function(r){return t.IPv6.isValid(r)||t.IPv4.isValid(r)},t.parse=function(r){if(t.IPv6.isValid(r))return t.IPv6.parse(r);if(t.IPv4.isValid(r))return t.IPv4.parse(r);throw new Error("ipaddr: the address has neither IPv6 nor IPv4 format")},t.parseCIDR=function(r){try{return t.IPv6.parseCIDR(r)}catch(n){n;try{return t.IPv4.parseCIDR(r)}catch(r){throw r,new Error("ipaddr: the address has neither IPv6 nor IPv4 CIDR format")}}},t.fromByteArray=function(r){var n;if(4===(n=r.length))return new t.IPv4(r);if(16===n)return new t.IPv6(r);throw new Error("ipaddr: the binary input is neither an IPv6 nor IPv4 address")},t.process=function(r){var t;return t=this.parse(r),"ipv6"===t.kind()&&t.isIPv4MappedAddress()?t.toIPv4Address():t}}).call(this);
\ No newline at end of file
diff --git a/backend/node_modules/ipaddr.js/lib/ipaddr.js b/backend/node_modules/ipaddr.js/lib/ipaddr.js
new file mode 100644
index 0000000..18bd93b
--- /dev/null
+++ b/backend/node_modules/ipaddr.js/lib/ipaddr.js
@@ -0,0 +1,673 @@
+(function() {
+  var expandIPv6, ipaddr, ipv4Part, ipv4Regexes, ipv6Part, ipv6Regexes, matchCIDR, root, zoneIndex;
+
+  ipaddr = {};
+
+  root = this;
+
+  if ((typeof module !== "undefined" && module !== null) && module.exports) {
+    module.exports = ipaddr;
+  } else {
+    root['ipaddr'] = ipaddr;
+  }
+
+  matchCIDR = function(first, second, partSize, cidrBits) {
+    var part, shift;
+    if (first.length !== second.length) {
+      throw new Error("ipaddr: cannot match CIDR for objects with different lengths");
+    }
+    part = 0;
+    while (cidrBits > 0) {
+      shift = partSize - cidrBits;
+      if (shift < 0) {
+        shift = 0;
+      }
+      if (first[part] >> shift !== second[part] >> shift) {
+        return false;
+      }
+      cidrBits -= partSize;
+      part += 1;
+    }
+    return true;
+  };
+
+  ipaddr.subnetMatch = function(address, rangeList, defaultName) {
+    var k, len, rangeName, rangeSubnets, subnet;
+    if (defaultName == null) {
+      defaultName = 'unicast';
+    }
+    for (rangeName in rangeList) {
+      rangeSubnets = rangeList[rangeName];
+      if (rangeSubnets[0] && !(rangeSubnets[0] instanceof Array)) {
+        rangeSubnets = [rangeSubnets];
+      }
+      for (k = 0, len = rangeSubnets.length; k < len; k++) {
+        subnet = rangeSubnets[k];
+        if (address.kind() === subnet[0].kind()) {
+          if (address.match.apply(address, subnet)) {
+            return rangeName;
+          }
+        }
+      }
+    }
+    return defaultName;
+  };
+
+  ipaddr.IPv4 = (function() {
+    function IPv4(octets) {
+      var k, len, octet;
+      if (octets.length !== 4) {
+        throw new Error("ipaddr: ipv4 octet count should be 4");
+      }
+      for (k = 0, len = octets.length; k < len; k++) {
+        octet = octets[k];
+        if (!((0 <= octet && octet <= 255))) {
+          throw new Error("ipaddr: ipv4 octet should fit in 8 bits");
+        }
+      }
+      this.octets = octets;
+    }
+
+    IPv4.prototype.kind = function() {
+      return 'ipv4';
+    };
+
+    IPv4.prototype.toString = function() {
+      return this.octets.join(".");
+    };
+
+    IPv4.prototype.toNormalizedString = function() {
+      return this.toString();
+    };
+
+    IPv4.prototype.toByteArray = function() {
+      return this.octets.slice(0);
+    };
+
+    IPv4.prototype.match = function(other, cidrRange) {
+      var ref;
+      if (cidrRange === void 0) {
+        ref = other, other = ref[0], cidrRange = ref[1];
+      }
+      if (other.kind() !== 'ipv4') {
+        throw new Error("ipaddr: cannot match ipv4 address with non-ipv4 one");
+      }
+      return matchCIDR(this.octets, other.octets, 8, cidrRange);
+    };
+
+    IPv4.prototype.SpecialRanges = {
+      unspecified: [[new IPv4([0, 0, 0, 0]), 8]],
+      broadcast: [[new IPv4([255, 255, 255, 255]), 32]],
+      multicast: [[new IPv4([224, 0, 0, 0]), 4]],
+      linkLocal: [[new IPv4([169, 254, 0, 0]), 16]],
+      loopback: [[new IPv4([127, 0, 0, 0]), 8]],
+      carrierGradeNat: [[new IPv4([100, 64, 0, 0]), 10]],
+      "private": [[new IPv4([10, 0, 0, 0]), 8], [new IPv4([172, 16, 0, 0]), 12], [new IPv4([192, 168, 0, 0]), 16]],
+      reserved: [[new IPv4([192, 0, 0, 0]), 24], [new IPv4([192, 0, 2, 0]), 24], [new IPv4([192, 88, 99, 0]), 24], [new IPv4([198, 51, 100, 0]), 24], [new IPv4([203, 0, 113, 0]), 24], [new IPv4([240, 0, 0, 0]), 4]]
+    };
+
+    IPv4.prototype.range = function() {
+      return ipaddr.subnetMatch(this, this.SpecialRanges);
+    };
+
+    IPv4.prototype.toIPv4MappedAddress = function() {
+      return ipaddr.IPv6.parse("::ffff:" + (this.toString()));
+    };
+
+    IPv4.prototype.prefixLengthFromSubnetMask = function() {
+      var cidr, i, k, octet, stop, zeros, zerotable;
+      zerotable = {
+        0: 8,
+        128: 7,
+        192: 6,
+        224: 5,
+        240: 4,
+        248: 3,
+        252: 2,
+        254: 1,
+        255: 0
+      };
+      cidr = 0;
+      stop = false;
+      for (i = k = 3; k >= 0; i = k += -1) {
+        octet = this.octets[i];
+        if (octet in zerotable) {
+          zeros = zerotable[octet];
+          if (stop && zeros !== 0) {
+            return null;
+          }
+          if (zeros !== 8) {
+            stop = true;
+          }
+          cidr += zeros;
+        } else {
+          return null;
+        }
+      }
+      return 32 - cidr;
+    };
+
+    return IPv4;
+
+  })();
+
+  ipv4Part = "(0?\\d+|0x[a-f0-9]+)";
+
+  ipv4Regexes = {
+    fourOctet: new RegExp("^" + ipv4Part + "\\." + ipv4Part + "\\." + ipv4Part + "\\." + ipv4Part + "$", 'i'),
+    longValue: new RegExp("^" + ipv4Part + "$", 'i')
+  };
+
+  ipaddr.IPv4.parser = function(string) {
+    var match, parseIntAuto, part, shift, value;
+    parseIntAuto = function(string) {
+      if (string[0] === "0" && string[1] !== "x") {
+        return parseInt(string, 8);
+      } else {
+        return parseInt(string);
+      }
+    };
+    if (match = string.match(ipv4Regexes.fourOctet)) {
+      return (function() {
+        var k, len, ref, results;
+        ref = match.slice(1, 6);
+        results = [];
+        for (k = 0, len = ref.length; k < len; k++) {
+          part = ref[k];
+          results.push(parseIntAuto(part));
+        }
+        return results;
+      })();
+    } else if (match = string.match(ipv4Regexes.longValue)) {
+      value = parseIntAuto(match[1]);
+      if (value > 0xffffffff || value < 0) {
+        throw new Error("ipaddr: address outside defined range");
+      }
+      return ((function() {
+        var k, results;
+        results = [];
+        for (shift = k = 0; k <= 24; shift = k += 8) {
+          results.push((value >> shift) & 0xff);
+        }
+        return results;
+      })()).reverse();
+    } else {
+      return null;
+    }
+  };
+
+  ipaddr.IPv6 = (function() {
+    function IPv6(parts, zoneId) {
+      var i, k, l, len, part, ref;
+      if (parts.length === 16) {
+        this.parts = [];
+        for (i = k = 0; k <= 14; i = k += 2) {
+          this.parts.push((parts[i] << 8) | parts[i + 1]);
+        }
+      } else if (parts.length === 8) {
+        this.parts = parts;
+      } else {
+        throw new Error("ipaddr: ipv6 part count should be 8 or 16");
+      }
+      ref = this.parts;
+      for (l = 0, len = ref.length; l < len; l++) {
+        part = ref[l];
+        if (!((0 <= part && part <= 0xffff))) {
+          throw new Error("ipaddr: ipv6 part should fit in 16 bits");
+        }
+      }
+      if (zoneId) {
+        this.zoneId = zoneId;
+      }
+    }
+
+    IPv6.prototype.kind = function() {
+      return 'ipv6';
+    };
+
+    IPv6.prototype.toString = function() {
+      return this.toNormalizedString().replace(/((^|:)(0(:|$))+)/, '::');
+    };
+
+    IPv6.prototype.toRFC5952String = function() {
+      var bestMatchIndex, bestMatchLength, match, regex, string;
+      regex = /((^|:)(0(:|$)){2,})/g;
+      string = this.toNormalizedString();
+      bestMatchIndex = 0;
+      bestMatchLength = -1;
+      while ((match = regex.exec(string))) {
+        if (match[0].length > bestMatchLength) {
+          bestMatchIndex = match.index;
+          bestMatchLength = match[0].length;
+        }
+      }
+      if (bestMatchLength < 0) {
+        return string;
+      }
+      return string.substring(0, bestMatchIndex) + '::' + string.substring(bestMatchIndex + bestMatchLength);
+    };
+
+    IPv6.prototype.toByteArray = function() {
+      var bytes, k, len, part, ref;
+      bytes = [];
+      ref = this.parts;
+      for (k = 0, len = ref.length; k < len; k++) {
+        part = ref[k];
+        bytes.push(part >> 8);
+        bytes.push(part & 0xff);
+      }
+      return bytes;
+    };
+
+    IPv6.prototype.toNormalizedString = function() {
+      var addr, part, suffix;
+      addr = ((function() {
+        var k, len, ref, results;
+        ref = this.parts;
+        results = [];
+        for (k = 0, len = ref.length; k < len; k++) {
+          part = ref[k];
+          results.push(part.toString(16));
+        }
+        return results;
+      }).call(this)).join(":");
+      suffix = '';
+      if (this.zoneId) {
+        suffix = '%' + this.zoneId;
+      }
+      return addr + suffix;
+    };
+
+    IPv6.prototype.toFixedLengthString = function() {
+      var addr, part, suffix;
+      addr = ((function() {
+        var k, len, ref, results;
+        ref = this.parts;
+        results = [];
+        for (k = 0, len = ref.length; k < len; k++) {
+          part = ref[k];
+          results.push(part.toString(16).padStart(4, '0'));
+        }
+        return results;
+      }).call(this)).join(":");
+      suffix = '';
+      if (this.zoneId) {
+        suffix = '%' + this.zoneId;
+      }
+      return addr + suffix;
+    };
+
+    IPv6.prototype.match = function(other, cidrRange) {
+      var ref;
+      if (cidrRange === void 0) {
+        ref = other, other = ref[0], cidrRange = ref[1];
+      }
+      if (other.kind() !== 'ipv6') {
+        throw new Error("ipaddr: cannot match ipv6 address with non-ipv6 one");
+      }
+      return matchCIDR(this.parts, other.parts, 16, cidrRange);
+    };
+
+    IPv6.prototype.SpecialRanges = {
+      unspecified: [new IPv6([0, 0, 0, 0, 0, 0, 0, 0]), 128],
+      linkLocal: [new IPv6([0xfe80, 0, 0, 0, 0, 0, 0, 0]), 10],
+      multicast: [new IPv6([0xff00, 0, 0, 0, 0, 0, 0, 0]), 8],
+      loopback: [new IPv6([0, 0, 0, 0, 0, 0, 0, 1]), 128],
+      uniqueLocal: [new IPv6([0xfc00, 0, 0, 0, 0, 0, 0, 0]), 7],
+      ipv4Mapped: [new IPv6([0, 0, 0, 0, 0, 0xffff, 0, 0]), 96],
+      rfc6145: [new IPv6([0, 0, 0, 0, 0xffff, 0, 0, 0]), 96],
+      rfc6052: [new IPv6([0x64, 0xff9b, 0, 0, 0, 0, 0, 0]), 96],
+      '6to4': [new IPv6([0x2002, 0, 0, 0, 0, 0, 0, 0]), 16],
+      teredo: [new IPv6([0x2001, 0, 0, 0, 0, 0, 0, 0]), 32],
+      reserved: [[new IPv6([0x2001, 0xdb8, 0, 0, 0, 0, 0, 0]), 32]]
+    };
+
+    IPv6.prototype.range = function() {
+      return ipaddr.subnetMatch(this, this.SpecialRanges);
+    };
+
+    IPv6.prototype.isIPv4MappedAddress = function() {
+      return this.range() === 'ipv4Mapped';
+    };
+
+    IPv6.prototype.toIPv4Address = function() {
+      var high, low, ref;
+      if (!this.isIPv4MappedAddress()) {
+        throw new Error("ipaddr: trying to convert a generic ipv6 address to ipv4");
+      }
+      ref = this.parts.slice(-2), high = ref[0], low = ref[1];
+      return new ipaddr.IPv4([high >> 8, high & 0xff, low >> 8, low & 0xff]);
+    };
+
+    IPv6.prototype.prefixLengthFromSubnetMask = function() {
+      var cidr, i, k, part, stop, zeros, zerotable;
+      zerotable = {
+        0: 16,
+        32768: 15,
+        49152: 14,
+        57344: 13,
+        61440: 12,
+        63488: 11,
+        64512: 10,
+        65024: 9,
+        65280: 8,
+        65408: 7,
+        65472: 6,
+        65504: 5,
+        65520: 4,
+        65528: 3,
+        65532: 2,
+        65534: 1,
+        65535: 0
+      };
+      cidr = 0;
+      stop = false;
+      for (i = k = 7; k >= 0; i = k += -1) {
+        part = this.parts[i];
+        if (part in zerotable) {
+          zeros = zerotable[part];
+          if (stop && zeros !== 0) {
+            return null;
+          }
+          if (zeros !== 16) {
+            stop = true;
+          }
+          cidr += zeros;
+        } else {
+          return null;
+        }
+      }
+      return 128 - cidr;
+    };
+
+    return IPv6;
+
+  })();
+
+  ipv6Part = "(?:[0-9a-f]+::?)+";
+
+  zoneIndex = "%[0-9a-z]{1,}";
+
+  ipv6Regexes = {
+    zoneIndex: new RegExp(zoneIndex, 'i'),
+    "native": new RegExp("^(::)?(" + ipv6Part + ")?([0-9a-f]+)?(::)?(" + zoneIndex + ")?$", 'i'),
+    transitional: new RegExp(("^((?:" + ipv6Part + ")|(?:::)(?:" + ipv6Part + ")?)") + (ipv4Part + "\\." + ipv4Part + "\\." + ipv4Part + "\\." + ipv4Part) + ("(" + zoneIndex + ")?$"), 'i')
+  };
+
+  expandIPv6 = function(string, parts) {
+    var colonCount, lastColon, part, replacement, replacementCount, zoneId;
+    if (string.indexOf('::') !== string.lastIndexOf('::')) {
+      return null;
+    }
+    zoneId = (string.match(ipv6Regexes['zoneIndex']) || [])[0];
+    if (zoneId) {
+      zoneId = zoneId.substring(1);
+      string = string.replace(/%.+$/, '');
+    }
+    colonCount = 0;
+    lastColon = -1;
+    while ((lastColon = string.indexOf(':', lastColon + 1)) >= 0) {
+      colonCount++;
+    }
+    if (string.substr(0, 2) === '::') {
+      colonCount--;
+    }
+    if (string.substr(-2, 2) === '::') {
+      colonCount--;
+    }
+    if (colonCount > parts) {
+      return null;
+    }
+    replacementCount = parts - colonCount;
+    replacement = ':';
+    while (replacementCount--) {
+      replacement += '0:';
+    }
+    string = string.replace('::', replacement);
+    if (string[0] === ':') {
+      string = string.slice(1);
+    }
+    if (string[string.length - 1] === ':') {
+      string = string.slice(0, -1);
+    }
+    parts = (function() {
+      var k, len, ref, results;
+      ref = string.split(":");
+      results = [];
+      for (k = 0, len = ref.length; k < len; k++) {
+        part = ref[k];
+        results.push(parseInt(part, 16));
+      }
+      return results;
+    })();
+    return {
+      parts: parts,
+      zoneId: zoneId
+    };
+  };
+
+  ipaddr.IPv6.parser = function(string) {
+    var addr, k, len, match, octet, octets, zoneId;
+    if (ipv6Regexes['native'].test(string)) {
+      return expandIPv6(string, 8);
+    } else if (match = string.match(ipv6Regexes['transitional'])) {
+      zoneId = match[6] || '';
+      addr = expandIPv6(match[1].slice(0, -1) + zoneId, 6);
+      if (addr.parts) {
+        octets = [parseInt(match[2]), parseInt(match[3]), parseInt(match[4]), parseInt(match[5])];
+        for (k = 0, len = octets.length; k < len; k++) {
+          octet = octets[k];
+          if (!((0 <= octet && octet <= 255))) {
+            return null;
+          }
+        }
+        addr.parts.push(octets[0] << 8 | octets[1]);
+        addr.parts.push(octets[2] << 8 | octets[3]);
+        return {
+          parts: addr.parts,
+          zoneId: addr.zoneId
+        };
+      }
+    }
+    return null;
+  };
+
+  ipaddr.IPv4.isIPv4 = ipaddr.IPv6.isIPv6 = function(string) {
+    return this.parser(string) !== null;
+  };
+
+  ipaddr.IPv4.isValid = function(string) {
+    var e;
+    try {
+      new this(this.parser(string));
+      return true;
+    } catch (error1) {
+      e = error1;
+      return false;
+    }
+  };
+
+  ipaddr.IPv4.isValidFourPartDecimal = function(string) {
+    if (ipaddr.IPv4.isValid(string) && string.match(/^(0|[1-9]\d*)(\.(0|[1-9]\d*)){3}$/)) {
+      return true;
+    } else {
+      return false;
+    }
+  };
+
+  ipaddr.IPv6.isValid = function(string) {
+    var addr, e;
+    if (typeof string === "string" && string.indexOf(":") === -1) {
+      return false;
+    }
+    try {
+      addr = this.parser(string);
+      new this(addr.parts, addr.zoneId);
+      return true;
+    } catch (error1) {
+      e = error1;
+      return false;
+    }
+  };
+
+  ipaddr.IPv4.parse = function(string) {
+    var parts;
+    parts = this.parser(string);
+    if (parts === null) {
+      throw new Error("ipaddr: string is not formatted like ip address");
+    }
+    return new this(parts);
+  };
+
+  ipaddr.IPv6.parse = function(string) {
+    var addr;
+    addr = this.parser(string);
+    if (addr.parts === null) {
+      throw new Error("ipaddr: string is not formatted like ip address");
+    }
+    return new this(addr.parts, addr.zoneId);
+  };
+
+  ipaddr.IPv4.parseCIDR = function(string) {
+    var maskLength, match, parsed;
+    if (match = string.match(/^(.+)\/(\d+)$/)) {
+      maskLength = parseInt(match[2]);
+      if (maskLength >= 0 && maskLength <= 32) {
+        parsed = [this.parse(match[1]), maskLength];
+        Object.defineProperty(parsed, 'toString', {
+          value: function() {
+            return this.join('/');
+          }
+        });
+        return parsed;
+      }
+    }
+    throw new Error("ipaddr: string is not formatted like an IPv4 CIDR range");
+  };
+
+  ipaddr.IPv4.subnetMaskFromPrefixLength = function(prefix) {
+    var filledOctetCount, j, octets;
+    prefix = parseInt(prefix);
+    if (prefix < 0 || prefix > 32) {
+      throw new Error('ipaddr: invalid IPv4 prefix length');
+    }
+    octets = [0, 0, 0, 0];
+    j = 0;
+    filledOctetCount = Math.floor(prefix / 8);
+    while (j < filledOctetCount) {
+      octets[j] = 255;
+      j++;
+    }
+    if (filledOctetCount < 4) {
+      octets[filledOctetCount] = Math.pow(2, prefix % 8) - 1 << 8 - (prefix % 8);
+    }
+    return new this(octets);
+  };
+
+  ipaddr.IPv4.broadcastAddressFromCIDR = function(string) {
+    var cidr, error, i, ipInterfaceOctets, octets, subnetMaskOctets;
+    try {
+      cidr = this.parseCIDR(string);
+      ipInterfaceOctets = cidr[0].toByteArray();
+      subnetMaskOctets = this.subnetMaskFromPrefixLength(cidr[1]).toByteArray();
+      octets = [];
+      i = 0;
+      while (i < 4) {
+        octets.push(parseInt(ipInterfaceOctets[i], 10) | parseInt(subnetMaskOctets[i], 10) ^ 255);
+        i++;
+      }
+      return new this(octets);
+    } catch (error1) {
+      error = error1;
+      throw new Error('ipaddr: the address does not have IPv4 CIDR format');
+    }
+  };
+
+  ipaddr.IPv4.networkAddressFromCIDR = function(string) {
+    var cidr, error, i, ipInterfaceOctets, octets, subnetMaskOctets;
+    try {
+      cidr = this.parseCIDR(string);
+      ipInterfaceOctets = cidr[0].toByteArray();
+      subnetMaskOctets = this.subnetMaskFromPrefixLength(cidr[1]).toByteArray();
+      octets = [];
+      i = 0;
+      while (i < 4) {
+        octets.push(parseInt(ipInterfaceOctets[i], 10) & parseInt(subnetMaskOctets[i], 10));
+        i++;
+      }
+      return new this(octets);
+    } catch (error1) {
+      error = error1;
+      throw new Error('ipaddr: the address does not have IPv4 CIDR format');
+    }
+  };
+
+  ipaddr.IPv6.parseCIDR = function(string) {
+    var maskLength, match, parsed;
+    if (match = string.match(/^(.+)\/(\d+)$/)) {
+      maskLength = parseInt(match[2]);
+      if (maskLength >= 0 && maskLength <= 128) {
+        parsed = [this.parse(match[1]), maskLength];
+        Object.defineProperty(parsed, 'toString', {
+          value: function() {
+            return this.join('/');
+          }
+        });
+        return parsed;
+      }
+    }
+    throw new Error("ipaddr: string is not formatted like an IPv6 CIDR range");
+  };
+
+  ipaddr.isValid = function(string) {
+    return ipaddr.IPv6.isValid(string) || ipaddr.IPv4.isValid(string);
+  };
+
+  ipaddr.parse = function(string) {
+    if (ipaddr.IPv6.isValid(string)) {
+      return ipaddr.IPv6.parse(string);
+    } else if (ipaddr.IPv4.isValid(string)) {
+      return ipaddr.IPv4.parse(string);
+    } else {
+      throw new Error("ipaddr: the address has neither IPv6 nor IPv4 format");
+    }
+  };
+
+  ipaddr.parseCIDR = function(string) {
+    var e;
+    try {
+      return ipaddr.IPv6.parseCIDR(string);
+    } catch (error1) {
+      e = error1;
+      try {
+        return ipaddr.IPv4.parseCIDR(string);
+      } catch (error1) {
+        e = error1;
+        throw new Error("ipaddr: the address has neither IPv6 nor IPv4 CIDR format");
+      }
+    }
+  };
+
+  ipaddr.fromByteArray = function(bytes) {
+    var length;
+    length = bytes.length;
+    if (length === 4) {
+      return new ipaddr.IPv4(bytes);
+    } else if (length === 16) {
+      return new ipaddr.IPv6(bytes);
+    } else {
+      throw new Error("ipaddr: the binary input is neither an IPv6 nor IPv4 address");
+    }
+  };
+
+  ipaddr.process = function(string) {
+    var addr;
+    addr = this.parse(string);
+    if (addr.kind() === 'ipv6' && addr.isIPv4MappedAddress()) {
+      return addr.toIPv4Address();
+    } else {
+      return addr;
+    }
+  };
+
+}).call(this);
diff --git a/backend/node_modules/ipaddr.js/lib/ipaddr.js.d.ts b/backend/node_modules/ipaddr.js/lib/ipaddr.js.d.ts
new file mode 100644
index 0000000..52174b6
--- /dev/null
+++ b/backend/node_modules/ipaddr.js/lib/ipaddr.js.d.ts
@@ -0,0 +1,68 @@
+declare module "ipaddr.js" {
+    type IPv4Range = 'unicast' | 'unspecified' | 'broadcast' | 'multicast' | 'linkLocal' | 'loopback' | 'carrierGradeNat' | 'private' | 'reserved';
+    type IPv6Range = 'unicast' | 'unspecified' | 'linkLocal' | 'multicast' | 'loopback' | 'uniqueLocal' | 'ipv4Mapped' | 'rfc6145' | 'rfc6052' | '6to4' | 'teredo' | 'reserved';
+
+    interface RangeList<T> {
+        [name: string]: [T, number] | [T, number][];
+    }
+
+    // Common methods/properties for IPv4 and IPv6 classes.
+    class IP {
+        prefixLengthFromSubnetMask(): number | null;
+        toByteArray(): number[];
+        toNormalizedString(): string;
+        toString(): string;
+    }
+
+    namespace Address {
+        export function isValid(addr: string): boolean;
+        export function fromByteArray(bytes: number[]): IPv4 | IPv6;
+        export function parse(addr: string): IPv4 | IPv6;
+        export function parseCIDR(mask: string): [IPv4 | IPv6, number];
+        export function process(addr: string): IPv4 | IPv6;
+        export function subnetMatch(addr: IPv4, rangeList: RangeList<IPv4>, defaultName?: string): string;
+        export function subnetMatch(addr: IPv6, rangeList: RangeList<IPv6>, defaultName?: string): string;
+
+        export class IPv4 extends IP {
+            static broadcastAddressFromCIDR(addr: string): IPv4;
+            static isIPv4(addr: string): boolean;
+            static isValidFourPartDecimal(addr: string): boolean;
+            static isValid(addr: string): boolean;
+            static networkAddressFromCIDR(addr: string): IPv4;
+            static parse(addr: string): IPv4;
+            static parseCIDR(addr: string): [IPv4, number];
+            static subnetMaskFromPrefixLength(prefix: number): IPv4;
+            constructor(octets: number[]);
+            octets: number[]
+
+            kind(): 'ipv4';
+            match(addr: IPv4, bits: number): boolean;
+            match(mask: [IPv4, number]): boolean;
+            range(): IPv4Range;
+            subnetMatch(rangeList: RangeList<IPv4>, defaultName?: string): string;
+            toIPv4MappedAddress(): IPv6;
+        }
+
+        export class IPv6 extends IP {
+            static broadcastAddressFromCIDR(addr: string): IPv6;
+            static isIPv6(addr: string): boolean;
+            static isValid(addr: string): boolean;
+            static parse(addr: string): IPv6;
+            static parseCIDR(addr: string): [IPv6, number];
+            static subnetMaskFromPrefixLength(prefix: number): IPv6;
+            constructor(parts: number[]);
+            parts: number[]
+            zoneId?: string
+
+            isIPv4MappedAddress(): boolean;
+            kind(): 'ipv6';
+            match(addr: IPv6, bits: number): boolean;
+            match(mask: [IPv6, number]): boolean;
+            range(): IPv6Range;
+            subnetMatch(rangeList: RangeList<IPv6>, defaultName?: string): string;
+            toIPv4Address(): IPv4;
+        }
+    }
+
+    export = Address;
+}
diff --git a/backend/node_modules/ipaddr.js/package.json b/backend/node_modules/ipaddr.js/package.json
new file mode 100644
index 0000000..f4d3547
--- /dev/null
+++ b/backend/node_modules/ipaddr.js/package.json
@@ -0,0 +1,35 @@
+{
+  "name": "ipaddr.js",
+  "description": "A library for manipulating IPv4 and IPv6 addresses in JavaScript.",
+  "version": "1.9.1",
+  "author": "whitequark <whitequark@whitequark.org>",
+  "directories": {
+    "lib": "./lib"
+  },
+  "dependencies": {},
+  "devDependencies": {
+    "coffee-script": "~1.12.6",
+    "nodeunit": "^0.11.3",
+    "uglify-js": "~3.0.19"
+  },
+  "scripts": {
+    "test": "cake build test"
+  },
+  "files": [
+    "lib/",
+    "LICENSE",
+    "ipaddr.min.js"
+  ],
+  "keywords": [
+    "ip",
+    "ipv4",
+    "ipv6"
+  ],
+  "repository": "git://github.com/whitequark/ipaddr.js",
+  "main": "./lib/ipaddr.js",
+  "engines": {
+    "node": ">= 0.10"
+  },
+  "license": "MIT",
+  "types": "./lib/ipaddr.js.d.ts"
+}
diff --git a/backend/node_modules/isarray/.npmignore b/backend/node_modules/isarray/.npmignore
new file mode 100644
index 0000000..3c3629e
--- /dev/null
+++ b/backend/node_modules/isarray/.npmignore
@@ -0,0 +1 @@
+node_modules
diff --git a/backend/node_modules/isarray/.travis.yml b/backend/node_modules/isarray/.travis.yml
new file mode 100644
index 0000000..cc4dba2
--- /dev/null
+++ b/backend/node_modules/isarray/.travis.yml
@@ -0,0 +1,4 @@
+language: node_js
+node_js:
+  - "0.8"
+  - "0.10"
diff --git a/backend/node_modules/isarray/Makefile b/backend/node_modules/isarray/Makefile
new file mode 100644
index 0000000..787d56e
--- /dev/null
+++ b/backend/node_modules/isarray/Makefile
@@ -0,0 +1,6 @@
+
+test:
+	@node_modules/.bin/tape test.js
+
+.PHONY: test
+
diff --git a/backend/node_modules/isarray/README.md b/backend/node_modules/isarray/README.md
new file mode 100644
index 0000000..16d2c59
--- /dev/null
+++ b/backend/node_modules/isarray/README.md
@@ -0,0 +1,60 @@
+
+# isarray
+
+`Array#isArray` for older browsers.
+
+[![build status](https://secure.travis-ci.org/juliangruber/isarray.svg)](http://travis-ci.org/juliangruber/isarray)
+[![downloads](https://img.shields.io/npm/dm/isarray.svg)](https://www.npmjs.org/package/isarray)
+
+[![browser support](https://ci.testling.com/juliangruber/isarray.png)
+](https://ci.testling.com/juliangruber/isarray)
+
+## Usage
+
+```js
+var isArray = require('isarray');
+
+console.log(isArray([])); // => true
+console.log(isArray({})); // => false
+```
+
+## Installation
+
+With [npm](http://npmjs.org) do
+
+```bash
+$ npm install isarray
+```
+
+Then bundle for the browser with
+[browserify](https://github.com/substack/browserify).
+
+With [component](http://component.io) do
+
+```bash
+$ component install juliangruber/isarray
+```
+
+## License
+
+(MIT)
+
+Copyright (c) 2013 Julian Gruber &lt;julian@juliangruber.com&gt;
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/isarray/component.json b/backend/node_modules/isarray/component.json
new file mode 100644
index 0000000..9e31b68
--- /dev/null
+++ b/backend/node_modules/isarray/component.json
@@ -0,0 +1,19 @@
+{
+  "name" : "isarray",
+  "description" : "Array#isArray for older browsers",
+  "version" : "0.0.1",
+  "repository" : "juliangruber/isarray",
+  "homepage": "https://github.com/juliangruber/isarray",
+  "main" : "index.js",
+  "scripts" : [
+    "index.js"
+  ],
+  "dependencies" : {},
+  "keywords": ["browser","isarray","array"],
+  "author": {
+    "name": "Julian Gruber",
+    "email": "mail@juliangruber.com",
+    "url": "http://juliangruber.com"
+  },
+  "license": "MIT"
+}
diff --git a/backend/node_modules/isarray/index.js b/backend/node_modules/isarray/index.js
new file mode 100644
index 0000000..a57f634
--- /dev/null
+++ b/backend/node_modules/isarray/index.js
@@ -0,0 +1,5 @@
+var toString = {}.toString;
+
+module.exports = Array.isArray || function (arr) {
+  return toString.call(arr) == '[object Array]';
+};
diff --git a/backend/node_modules/isarray/package.json b/backend/node_modules/isarray/package.json
new file mode 100644
index 0000000..1a4317a
--- /dev/null
+++ b/backend/node_modules/isarray/package.json
@@ -0,0 +1,45 @@
+{
+  "name": "isarray",
+  "description": "Array#isArray for older browsers",
+  "version": "1.0.0",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/juliangruber/isarray.git"
+  },
+  "homepage": "https://github.com/juliangruber/isarray",
+  "main": "index.js",
+  "dependencies": {},
+  "devDependencies": {
+    "tape": "~2.13.4"
+  },
+  "keywords": [
+    "browser",
+    "isarray",
+    "array"
+  ],
+  "author": {
+    "name": "Julian Gruber",
+    "email": "mail@juliangruber.com",
+    "url": "http://juliangruber.com"
+  },
+  "license": "MIT",
+  "testling": {
+    "files": "test.js",
+    "browsers": [
+      "ie/8..latest",
+      "firefox/17..latest",
+      "firefox/nightly",
+      "chrome/22..latest",
+      "chrome/canary",
+      "opera/12..latest",
+      "opera/next",
+      "safari/5.1..latest",
+      "ipad/6.0..latest",
+      "iphone/6.0..latest",
+      "android-browser/4.2..latest"
+    ]
+  },
+  "scripts": {
+    "test": "tape test.js"
+  }
+}
diff --git a/backend/node_modules/isarray/test.js b/backend/node_modules/isarray/test.js
new file mode 100644
index 0000000..e0c3444
--- /dev/null
+++ b/backend/node_modules/isarray/test.js
@@ -0,0 +1,20 @@
+var isArray = require('./');
+var test = require('tape');
+
+test('is array', function(t){
+  t.ok(isArray([]));
+  t.notOk(isArray({}));
+  t.notOk(isArray(null));
+  t.notOk(isArray(false));
+
+  var obj = {};
+  obj[0] = true;
+  t.notOk(isArray(obj));
+
+  var arr = [];
+  arr.foo = 'bar';
+  t.ok(isArray(arr));
+
+  t.end();
+});
+
diff --git a/backend/node_modules/kareem/CHANGELOG.md b/backend/node_modules/kareem/CHANGELOG.md
new file mode 100644
index 0000000..8c0cd4b
--- /dev/null
+++ b/backend/node_modules/kareem/CHANGELOG.md
@@ -0,0 +1,823 @@
+# Changelog
+
+<a name="2.6.0"></a>
+## 2.6.0 (2024-03-04)
+
+* feat: add TypeScript types
+
+<a name="2.5.1"></a>
+## 2.5.1 (2023-01-06)
+
+* fix: avoid passing final callback to pre hook, because calling the callback can mess up hook execution #36 Automattic/mongoose#12836
+
+<a name="2.5.0"></a>
+## 2.5.0 (2022-12-01)
+
+* feat: add errorHandler option to `post()` #34
+
+<a name="2.4.0"></a>
+## 2.4.0 (2022-06-13)
+
+* feat: add `overwriteResult()` and `skipWrappedFunction()` for more advanced control flow
+
+<a name="2.3.4"></a>
+## 2.3.4 (2022-02-10)
+
+* perf: various performance improvements #27 #24 #23 #22 #21 #20
+
+<a name="2.3.3"></a>
+## 2.3.3 (2021-12-26)
+
+* fix: handle sync errors in `wrap()`
+
+<a name="2.3.2"></a>
+## 2.3.2 (2020-12-08)
+
+* fix: handle sync errors in pre hooks if there are multiple hooks
+
+<a name="2.3.0"></a>
+## 2.3.0 (2018-09-24)
+
+* chore(release): 2.2.3 ([c8f2695](https://github.com/vkarpov15/kareem/commit/c8f2695))
+* chore(release): 2.2.4 ([a377a4f](https://github.com/vkarpov15/kareem/commit/a377a4f))
+* chore(release): 2.2.5 ([5a495e3](https://github.com/vkarpov15/kareem/commit/5a495e3))
+* fix(filter): copy async pres correctly with `filter()` ([1b1ed8a](https://github.com/vkarpov15/kareem/commit/1b1ed8a)), closes [Automattic/mongoose#3054](https://github.com/Automattic/mongoose/issues/3054)
+* feat: add filter() function ([1f641f4](https://github.com/vkarpov15/kareem/commit/1f641f4))
+* feat: support storing options on pre and post hooks ([59220b9](https://github.com/vkarpov15/kareem/commit/59220b9))
+
+
+
+<a name="2.2.3"></a>
+## <small>2.2.3 (2018-09-10)</small>
+
+* chore: release 2.2.3 ([af653a3](https://github.com/vkarpov15/kareem/commit/af653a3))
+
+
+
+<a name="2.2.2"></a>
+## <small>2.2.2 (2018-09-10)</small>
+
+* chore: release 2.2.2 ([3f0144d](https://github.com/vkarpov15/kareem/commit/3f0144d))
+* fix: allow merge() to not clone ([e628d65](https://github.com/vkarpov15/kareem/commit/e628d65))
+
+
+
+<a name="2.2.1"></a>
+## <small>2.2.1 (2018-06-05)</small>
+
+* chore: release 2.2.1 ([4625a64](https://github.com/vkarpov15/kareem/commit/4625a64))
+* chore: remove lockfile from git ([7f3e4e6](https://github.com/vkarpov15/kareem/commit/7f3e4e6))
+* fix: handle numAsync correctly when merging ([fef8e7e](https://github.com/vkarpov15/kareem/commit/fef8e7e))
+* test: repro issue with not copying numAsync ([952d9db](https://github.com/vkarpov15/kareem/commit/952d9db))
+
+
+
+<a name="2.2.0"></a>
+## 2.2.0 (2018-06-05)
+
+* chore: release 2.2.0 ([ff9ad03](https://github.com/vkarpov15/kareem/commit/ff9ad03))
+* fix: use maps instead of objects for _pres and _posts so `toString()` doesn't get reported as having ([55df303](https://github.com/vkarpov15/kareem/commit/55df303)), closes [Automattic/mongoose#6538](https://github.com/Automattic/mongoose/issues/6538)
+
+
+
+<a name="2.1.0"></a>
+## 2.1.0 (2018-05-16)
+
+* chore: release 2.1.0 ([ba5f1bc](https://github.com/vkarpov15/kareem/commit/ba5f1bc))
+* feat: add option to check wrapped function return value for promises ([c9d7dd1](https://github.com/vkarpov15/kareem/commit/c9d7dd1))
+* refactor: use const in wrap() ([0fc21f9](https://github.com/vkarpov15/kareem/commit/0fc21f9))
+
+
+
+<a name="2.0.7"></a>
+## <small>2.0.7 (2018-04-28)</small>
+
+* chore: release 2.0.7 ([0bf91e6](https://github.com/vkarpov15/kareem/commit/0bf91e6))
+* feat: add `hasHooks()` ([225f18d](https://github.com/vkarpov15/kareem/commit/225f18d)), closes [Automattic/mongoose#6385](https://github.com/Automattic/mongoose/issues/6385)
+
+
+
+<a name="2.0.6"></a>
+## <small>2.0.6 (2018-03-22)</small>
+
+* chore: release 2.0.6 ([f3d406b](https://github.com/vkarpov15/kareem/commit/f3d406b))
+* fix(wrap): ensure fast path still wraps function in `nextTick()` for chaining ([7000494](https://github.com/vkarpov15/kareem/commit/7000494)), closes [Automattic/mongoose#6250](https://github.com/Automattic/mongoose/issues/6250) [dsanel/mongoose-delete#36](https://github.com/dsanel/mongoose-delete/issues/36)
+
+
+
+<a name="2.0.5"></a>
+## <small>2.0.5 (2018-02-22)</small>
+
+* chore: release 2.0.5 ([3286612](https://github.com/vkarpov15/kareem/commit/3286612))
+* perf(createWrapper): don't create wrapper if there are no hooks ([5afc5b9](https://github.com/vkarpov15/kareem/commit/5afc5b9)), closes [Automattic/mongoose#6126](https://github.com/Automattic/mongoose/issues/6126)
+
+
+
+<a name="2.0.4"></a>
+## <small>2.0.4 (2018-02-08)</small>
+
+* chore: release 2.0.4 ([2ab0293](https://github.com/vkarpov15/kareem/commit/2ab0293))
+
+
+
+<a name="2.0.3"></a>
+## <small>2.0.3 (2018-02-01)</small>
+
+* chore: release 2.0.3 ([3c1abe5](https://github.com/vkarpov15/kareem/commit/3c1abe5))
+* fix: use process.nextTick() re: Automattic/mongoose#6074 ([e5bfe33](https://github.com/vkarpov15/kareem/commit/e5bfe33)), closes [Automattic/mongoose#6074](https://github.com/Automattic/mongoose/issues/6074)
+
+
+
+<a name="2.0.2"></a>
+## <small>2.0.2 (2018-01-24)</small>
+
+* chore: fix license ([a9d755c](https://github.com/vkarpov15/kareem/commit/a9d755c)), closes [#10](https://github.com/vkarpov15/kareem/issues/10)
+* chore: release 2.0.2 ([fe87ab6](https://github.com/vkarpov15/kareem/commit/fe87ab6))
+
+
+
+<a name="2.0.1"></a>
+## <small>2.0.1 (2018-01-09)</small>
+
+* chore: release 2.0.1 with lockfile bump ([09c44fb](https://github.com/vkarpov15/kareem/commit/09c44fb))
+
+
+
+<a name="2.0.0"></a>
+## 2.0.0 (2018-01-09)
+
+* chore: bump marked re: security ([cc564a9](https://github.com/vkarpov15/kareem/commit/cc564a9))
+* chore: release 2.0.0 ([f511d1c](https://github.com/vkarpov15/kareem/commit/f511d1c))
+
+
+
+<a name="2.0.0-rc5"></a>
+## 2.0.0-rc5 (2017-12-23)
+
+* chore: fix build on node 4+5 ([6dac5a4](https://github.com/vkarpov15/kareem/commit/6dac5a4))
+* chore: fix built on node 4 + 5 again ([434ef0a](https://github.com/vkarpov15/kareem/commit/434ef0a))
+* chore: release 2.0.0-rc5 ([25a32ee](https://github.com/vkarpov15/kareem/commit/25a32ee))
+
+
+
+<a name="2.0.0-rc4"></a>
+## 2.0.0-rc4 (2017-12-22)
+
+* chore: release 2.0.0-rc4 ([49fc083](https://github.com/vkarpov15/kareem/commit/49fc083))
+* BREAKING CHANGE: deduplicate when merging hooks re: Automattic/mongoose#2945 ([d458573](https://github.com/vkarpov15/kareem/commit/d458573)), closes [Automattic/mongoose#2945](https://github.com/Automattic/mongoose/issues/2945)
+
+
+
+<a name="2.0.0-rc3"></a>
+## 2.0.0-rc3 (2017-12-22)
+
+* chore: release 2.0.0-rc3 ([adaaa00](https://github.com/vkarpov15/kareem/commit/adaaa00))
+* feat: support returning promises from middleware functions ([05b4480](https://github.com/vkarpov15/kareem/commit/05b4480)), closes [Automattic/mongoose#3779](https://github.com/Automattic/mongoose/issues/3779)
+
+
+
+<a name="2.0.0-rc2"></a>
+## 2.0.0-rc2 (2017-12-21)
+
+* chore: release 2.0.0-rc2 ([76325fa](https://github.com/vkarpov15/kareem/commit/76325fa))
+* fix: ensure next() and done() run in next tick ([6c20684](https://github.com/vkarpov15/kareem/commit/6c20684))
+
+
+
+<a name="2.0.0-rc1"></a>
+## 2.0.0-rc1 (2017-12-21)
+
+* chore: improve test coverage re: Automattic/mongoose#3232 ([7b45cf0](https://github.com/vkarpov15/kareem/commit/7b45cf0)), closes [Automattic/mongoose#3232](https://github.com/Automattic/mongoose/issues/3232)
+* chore: release 2.0.0-rc1 ([9b83f52](https://github.com/vkarpov15/kareem/commit/9b83f52))
+* BREAKING CHANGE: report sync exceptions as errors, only allow calling next() and done() once ([674adcc](https://github.com/vkarpov15/kareem/commit/674adcc)), closes [Automattic/mongoose#3483](https://github.com/Automattic/mongoose/issues/3483)
+
+
+
+<a name="2.0.0-rc0"></a>
+## 2.0.0-rc0 (2017-12-17)
+
+* chore: release 2.0.0-rc0 ([16b44b5](https://github.com/vkarpov15/kareem/commit/16b44b5))
+* BREAKING CHANGE: drop support for node < 4 ([9cbb8c7](https://github.com/vkarpov15/kareem/commit/9cbb8c7))
+* BREAKING CHANGE: remove useLegacyPost and add several new features ([6dd8531](https://github.com/vkarpov15/kareem/commit/6dd8531)), closes [Automattic/mongoose#3232](https://github.com/Automattic/mongoose/issues/3232)
+
+
+
+<a name="1.5.0"></a>
+## 1.5.0 (2017-07-20)
+
+* chore: release 1.5.0 ([9c491a0](https://github.com/vkarpov15/kareem/commit/9c491a0))
+* fix: improve post error handlers results ([9928dd5](https://github.com/vkarpov15/kareem/commit/9928dd5)), closes [Automattic/mongoose#5466](https://github.com/Automattic/mongoose/issues/5466)
+
+
+
+<a name="1.4.2"></a>
+## <small>1.4.2 (2017-07-06)</small>
+
+* chore: release 1.4.2 ([8d14ac5](https://github.com/vkarpov15/kareem/commit/8d14ac5))
+* fix: correct args re: Automattic/mongoose#5405 ([3f28ae6](https://github.com/vkarpov15/kareem/commit/3f28ae6)), closes [Automattic/mongoose#5405](https://github.com/Automattic/mongoose/issues/5405)
+
+
+
+<a name="1.4.1"></a>
+## <small>1.4.1 (2017-04-25)</small>
+
+* chore: release 1.4.1 ([5ecf0c2](https://github.com/vkarpov15/kareem/commit/5ecf0c2))
+* fix: handle numAsyncPres with clone() ([c72e857](https://github.com/vkarpov15/kareem/commit/c72e857)), closes [#8](https://github.com/vkarpov15/kareem/issues/8)
+* test: repro #8 ([9b4d6b2](https://github.com/vkarpov15/kareem/commit/9b4d6b2)), closes [#8](https://github.com/vkarpov15/kareem/issues/8)
+
+
+
+<a name="1.4.0"></a>
+## 1.4.0 (2017-04-19)
+
+* chore: release 1.4.0 ([101c5f5](https://github.com/vkarpov15/kareem/commit/101c5f5))
+* feat: add merge() function ([285325e](https://github.com/vkarpov15/kareem/commit/285325e))
+
+
+
+<a name="1.3.0"></a>
+## 1.3.0 (2017-03-26)
+
+* chore: release 1.3.0 ([f3a9e50](https://github.com/vkarpov15/kareem/commit/f3a9e50))
+* feat: pass function args to execPre ([4dd466d](https://github.com/vkarpov15/kareem/commit/4dd466d))
+
+
+
+<a name="1.2.1"></a>
+## <small>1.2.1 (2017-02-03)</small>
+
+* chore: release 1.2.1 ([d97081f](https://github.com/vkarpov15/kareem/commit/d97081f))
+* fix: filter out _kareemIgnored args for error handlers re: Automattic/mongoose#4925 ([ddc7aeb](https://github.com/vkarpov15/kareem/commit/ddc7aeb)), closes [Automattic/mongoose#4925](https://github.com/Automattic/mongoose/issues/4925)
+* fix: make error handlers handle errors in pre hooks ([af38033](https://github.com/vkarpov15/kareem/commit/af38033)), closes [Automattic/mongoose#4927](https://github.com/Automattic/mongoose/issues/4927)
+
+
+
+<a name="1.2.0"></a>
+## 1.2.0 (2017-01-02)
+
+* chore: release 1.2.0 ([033225c](https://github.com/vkarpov15/kareem/commit/033225c))
+* chore: upgrade deps ([f9e9a09](https://github.com/vkarpov15/kareem/commit/f9e9a09))
+* feat: add _kareemIgnore re: Automattic/mongoose#4836 ([7957771](https://github.com/vkarpov15/kareem/commit/7957771)), closes [Automattic/mongoose#4836](https://github.com/Automattic/mongoose/issues/4836)
+
+
+
+<a name="1.1.5"></a>
+## <small>1.1.5 (2016-12-13)</small>
+
+* chore: release 1.1.5 ([1a9f684](https://github.com/vkarpov15/kareem/commit/1a9f684))
+* fix: correct field name ([04a0e9d](https://github.com/vkarpov15/kareem/commit/04a0e9d))
+
+
+
+<a name="1.1.4"></a>
+## <small>1.1.4 (2016-12-09)</small>
+
+* chore: release 1.1.4 ([ece401c](https://github.com/vkarpov15/kareem/commit/ece401c))
+* chore: run tests on node 6 ([e0cb1cb](https://github.com/vkarpov15/kareem/commit/e0cb1cb))
+* fix: only copy own properties in clone() ([dfe28ce](https://github.com/vkarpov15/kareem/commit/dfe28ce)), closes [#7](https://github.com/vkarpov15/kareem/issues/7)
+
+
+
+<a name="1.1.3"></a>
+## <small>1.1.3 (2016-06-27)</small>
+
+* chore: release 1.1.3 ([87171c8](https://github.com/vkarpov15/kareem/commit/87171c8))
+* fix: couple more issues with arg processing ([c65f523](https://github.com/vkarpov15/kareem/commit/c65f523))
+
+
+
+<a name="1.1.2"></a>
+## <small>1.1.2 (2016-06-27)</small>
+
+* chore: release 1.1.2 ([8e102b6](https://github.com/vkarpov15/kareem/commit/8e102b6))
+* fix: add early return ([4feda4e](https://github.com/vkarpov15/kareem/commit/4feda4e))
+
+
+
+<a name="1.1.1"></a>
+## <small>1.1.1 (2016-06-27)</small>
+
+* chore: release 1.1.1 ([8bb3050](https://github.com/vkarpov15/kareem/commit/8bb3050))
+* fix: skip error handlers if no error ([0eb3a44](https://github.com/vkarpov15/kareem/commit/0eb3a44))
+
+
+
+<a name="1.1.0"></a>
+## 1.1.0 (2016-05-11)
+
+* chore: release 1.1.0 ([85332d9](https://github.com/vkarpov15/kareem/commit/85332d9))
+* chore: test on node 4 and node 5 ([1faefa1](https://github.com/vkarpov15/kareem/commit/1faefa1))
+* 100% coverage again ([c9aee4e](https://github.com/vkarpov15/kareem/commit/c9aee4e))
+* add support for error post hooks ([d378113](https://github.com/vkarpov15/kareem/commit/d378113))
+* basic setup for sync hooks #4 ([55aa081](https://github.com/vkarpov15/kareem/commit/55aa081)), closes [#4](https://github.com/vkarpov15/kareem/issues/4)
+* proof of concept for error handlers ([e4a07d9](https://github.com/vkarpov15/kareem/commit/e4a07d9))
+* refactor out handleWrapError helper ([b19af38](https://github.com/vkarpov15/kareem/commit/b19af38))
+
+
+
+<a name="1.0.1"></a>
+## <small>1.0.1 (2015-05-10)</small>
+
+* Fix #1 ([de60dc6](https://github.com/vkarpov15/kareem/commit/de60dc6)), closes [#1](https://github.com/vkarpov15/kareem/issues/1)
+* release 1.0.1 ([6971088](https://github.com/vkarpov15/kareem/commit/6971088))
+* Run tests on iojs in travis ([adcd201](https://github.com/vkarpov15/kareem/commit/adcd201))
+* support legacy post hook behavior in wrap() ([23fa74c](https://github.com/vkarpov15/kareem/commit/23fa74c))
+* Use node 0.12 in travis ([834689d](https://github.com/vkarpov15/kareem/commit/834689d))
+
+
+
+<a name="1.0.0"></a>
+## 1.0.0 (2015-01-28)
+
+* Tag 1.0.0 ([4c5a35a](https://github.com/vkarpov15/kareem/commit/4c5a35a))
+
+
+
+<a name="0.0.8"></a>
+## <small>0.0.8 (2015-01-27)</small>
+
+* Add clone function ([688bba7](https://github.com/vkarpov15/kareem/commit/688bba7))
+* Add jscs for style checking ([5c93149](https://github.com/vkarpov15/kareem/commit/5c93149))
+* Bump 0.0.8 ([03c0d2f](https://github.com/vkarpov15/kareem/commit/03c0d2f))
+* Fix jscs config, add gulp rules ([9989abf](https://github.com/vkarpov15/kareem/commit/9989abf))
+* fix Makefile typo ([1f7e61a](https://github.com/vkarpov15/kareem/commit/1f7e61a))
+
+
+
+<a name="0.0.7"></a>
+## <small>0.0.7 (2015-01-04)</small>
+
+* Bump 0.0.7 ([98ef173](https://github.com/vkarpov15/kareem/commit/98ef173))
+* fix LearnBoost/mongoose#2553 - use null instead of undefined for err ([9157b48](https://github.com/vkarpov15/kareem/commit/9157b48)), closes [LearnBoost/mongoose#2553](https://github.com/LearnBoost/mongoose/issues/2553)
+* Regenerate docs ([2331cdf](https://github.com/vkarpov15/kareem/commit/2331cdf))
+
+
+
+<a name="0.0.6"></a>
+## <small>0.0.6 (2015-01-01)</small>
+
+* Update docs and bump 0.0.6 ([92c12a7](https://github.com/vkarpov15/kareem/commit/92c12a7))
+
+
+
+<a name="0.0.5"></a>
+## <small>0.0.5 (2015-01-01)</small>
+
+* Add coverage rule to Makefile ([825a91c](https://github.com/vkarpov15/kareem/commit/825a91c))
+* Add coveralls to README ([fb52369](https://github.com/vkarpov15/kareem/commit/fb52369))
+* Add coveralls to travis ([93f6f15](https://github.com/vkarpov15/kareem/commit/93f6f15))
+* Add createWrapper() function ([ea77741](https://github.com/vkarpov15/kareem/commit/ea77741))
+* Add istanbul code coverage ([6eceeef](https://github.com/vkarpov15/kareem/commit/6eceeef))
+* Add some more comments for examples ([c5b0c6f](https://github.com/vkarpov15/kareem/commit/c5b0c6f))
+* Add travis ([e6dcb06](https://github.com/vkarpov15/kareem/commit/e6dcb06))
+* Add travis badge to docs ([ad8c9b3](https://github.com/vkarpov15/kareem/commit/ad8c9b3))
+* Add wrap() tests, 100% coverage ([6945be4](https://github.com/vkarpov15/kareem/commit/6945be4))
+* Better test coverage for execPost ([d9ad539](https://github.com/vkarpov15/kareem/commit/d9ad539))
+* Bump 0.0.5 ([69875b1](https://github.com/vkarpov15/kareem/commit/69875b1))
+* Docs fix ([15b7098](https://github.com/vkarpov15/kareem/commit/15b7098))
+* Fix silly mistake in docs generation ([50373eb](https://github.com/vkarpov15/kareem/commit/50373eb))
+* Fix typo in readme ([fec4925](https://github.com/vkarpov15/kareem/commit/fec4925))
+* Linkify travis badge ([92b25fe](https://github.com/vkarpov15/kareem/commit/92b25fe))
+* Make travis run coverage ([747157b](https://github.com/vkarpov15/kareem/commit/747157b))
+* Move travis status badge ([d52e89b](https://github.com/vkarpov15/kareem/commit/d52e89b))
+* Quick fix for coverage ([50bbddb](https://github.com/vkarpov15/kareem/commit/50bbddb))
+* Typo fix ([adea794](https://github.com/vkarpov15/kareem/commit/adea794))
+
+
+
+<a name="0.0.4"></a>
+## <small>0.0.4 (2014-12-13)</small>
+
+* Bump 0.0.4, run docs generation ([51a15fe](https://github.com/vkarpov15/kareem/commit/51a15fe))
+* Use correct post parameters in wrap() ([9bb5da3](https://github.com/vkarpov15/kareem/commit/9bb5da3))
+
+
+
+<a name="0.0.3"></a>
+## <small>0.0.3 (2014-12-12)</small>
+
+* Add npm test script, fix small bug with args not getting passed through post ([49e3e68](https://github.com/vkarpov15/kareem/commit/49e3e68))
+* Bump 0.0.3 ([65621d8](https://github.com/vkarpov15/kareem/commit/65621d8))
+* Update readme ([901388b](https://github.com/vkarpov15/kareem/commit/901388b))
+
+
+
+<a name="0.0.2"></a>
+## <small>0.0.2 (2014-12-12)</small>
+
+* Add github repo and bump 0.0.2 ([59db8be](https://github.com/vkarpov15/kareem/commit/59db8be))
+
+
+
+<a name="0.0.1"></a>
+## <small>0.0.1 (2014-12-12)</small>
+
+* Add basic docs ([ad29ea4](https://github.com/vkarpov15/kareem/commit/ad29ea4))
+* Add pre hooks ([2ffc356](https://github.com/vkarpov15/kareem/commit/2ffc356))
+* Add wrap function ([68c540c](https://github.com/vkarpov15/kareem/commit/68c540c))
+* Bump to version 0.0.1 ([a4bfd68](https://github.com/vkarpov15/kareem/commit/a4bfd68))
+* Initial commit ([4002458](https://github.com/vkarpov15/kareem/commit/4002458))
+* Initial deposit ([98fc489](https://github.com/vkarpov15/kareem/commit/98fc489))
+* Post hooks ([395b67c](https://github.com/vkarpov15/kareem/commit/395b67c))
+* Some basic setup work ([82df75e](https://github.com/vkarpov15/kareem/commit/82df75e))
+* Support sync pre hooks ([1cc1b9f](https://github.com/vkarpov15/kareem/commit/1cc1b9f))
+* Update package.json description ([978da18](https://github.com/vkarpov15/kareem/commit/978da18))
+
+
+
+<a name="2.2.5"></a>
+## <small>2.2.5 (2018-09-24)</small>
+
+
+
+
+<a name="2.2.4"></a>
+## <small>2.2.4 (2018-09-24)</small>
+
+
+
+
+<a name="2.2.3"></a>
+## <small>2.2.3 (2018-09-24)</small>
+
+* fix(filter): copy async pres correctly with `filter()` ([1b1ed8a](https://github.com/vkarpov15/kareem/commit/1b1ed8a)), closes [Automattic/mongoose#3054](https://github.com/Automattic/mongoose/issues/3054)
+* feat: add filter() function ([1f641f4](https://github.com/vkarpov15/kareem/commit/1f641f4))
+* feat: support storing options on pre and post hooks ([59220b9](https://github.com/vkarpov15/kareem/commit/59220b9))
+
+
+
+<a name="2.2.3"></a>
+## <small>2.2.3 (2018-09-10)</small>
+
+* chore: release 2.2.3 ([af653a3](https://github.com/vkarpov15/kareem/commit/af653a3))
+
+
+
+<a name="2.2.2"></a>
+## <small>2.2.2 (2018-09-10)</small>
+
+* chore: release 2.2.2 ([3f0144d](https://github.com/vkarpov15/kareem/commit/3f0144d))
+* fix: allow merge() to not clone ([e628d65](https://github.com/vkarpov15/kareem/commit/e628d65))
+
+
+
+<a name="2.2.1"></a>
+## <small>2.2.1 (2018-06-05)</small>
+
+* chore: release 2.2.1 ([4625a64](https://github.com/vkarpov15/kareem/commit/4625a64))
+* chore: remove lockfile from git ([7f3e4e6](https://github.com/vkarpov15/kareem/commit/7f3e4e6))
+* fix: handle numAsync correctly when merging ([fef8e7e](https://github.com/vkarpov15/kareem/commit/fef8e7e))
+* test: repro issue with not copying numAsync ([952d9db](https://github.com/vkarpov15/kareem/commit/952d9db))
+
+
+
+<a name="2.2.0"></a>
+## 2.2.0 (2018-06-05)
+
+* chore: release 2.2.0 ([ff9ad03](https://github.com/vkarpov15/kareem/commit/ff9ad03))
+* fix: use maps instead of objects for _pres and _posts so `toString()` doesn't get reported as having ([55df303](https://github.com/vkarpov15/kareem/commit/55df303)), closes [Automattic/mongoose#6538](https://github.com/Automattic/mongoose/issues/6538)
+
+
+
+<a name="2.1.0"></a>
+## 2.1.0 (2018-05-16)
+
+* chore: release 2.1.0 ([ba5f1bc](https://github.com/vkarpov15/kareem/commit/ba5f1bc))
+* feat: add option to check wrapped function return value for promises ([c9d7dd1](https://github.com/vkarpov15/kareem/commit/c9d7dd1))
+* refactor: use const in wrap() ([0fc21f9](https://github.com/vkarpov15/kareem/commit/0fc21f9))
+
+
+
+<a name="2.0.7"></a>
+## <small>2.0.7 (2018-04-28)</small>
+
+* chore: release 2.0.7 ([0bf91e6](https://github.com/vkarpov15/kareem/commit/0bf91e6))
+* feat: add `hasHooks()` ([225f18d](https://github.com/vkarpov15/kareem/commit/225f18d)), closes [Automattic/mongoose#6385](https://github.com/Automattic/mongoose/issues/6385)
+
+
+
+<a name="2.0.6"></a>
+## <small>2.0.6 (2018-03-22)</small>
+
+* chore: release 2.0.6 ([f3d406b](https://github.com/vkarpov15/kareem/commit/f3d406b))
+* fix(wrap): ensure fast path still wraps function in `nextTick()` for chaining ([7000494](https://github.com/vkarpov15/kareem/commit/7000494)), closes [Automattic/mongoose#6250](https://github.com/Automattic/mongoose/issues/6250) [dsanel/mongoose-delete#36](https://github.com/dsanel/mongoose-delete/issues/36)
+
+
+
+<a name="2.0.5"></a>
+## <small>2.0.5 (2018-02-22)</small>
+
+* chore: release 2.0.5 ([3286612](https://github.com/vkarpov15/kareem/commit/3286612))
+* perf(createWrapper): don't create wrapper if there are no hooks ([5afc5b9](https://github.com/vkarpov15/kareem/commit/5afc5b9)), closes [Automattic/mongoose#6126](https://github.com/Automattic/mongoose/issues/6126)
+
+
+
+<a name="2.0.4"></a>
+## <small>2.0.4 (2018-02-08)</small>
+
+* chore: release 2.0.4 ([2ab0293](https://github.com/vkarpov15/kareem/commit/2ab0293))
+
+
+
+<a name="2.0.3"></a>
+## <small>2.0.3 (2018-02-01)</small>
+
+* chore: release 2.0.3 ([3c1abe5](https://github.com/vkarpov15/kareem/commit/3c1abe5))
+* fix: use process.nextTick() re: Automattic/mongoose#6074 ([e5bfe33](https://github.com/vkarpov15/kareem/commit/e5bfe33)), closes [Automattic/mongoose#6074](https://github.com/Automattic/mongoose/issues/6074)
+
+
+
+<a name="2.0.2"></a>
+## <small>2.0.2 (2018-01-24)</small>
+
+* chore: fix license ([a9d755c](https://github.com/vkarpov15/kareem/commit/a9d755c)), closes [#10](https://github.com/vkarpov15/kareem/issues/10)
+* chore: release 2.0.2 ([fe87ab6](https://github.com/vkarpov15/kareem/commit/fe87ab6))
+
+
+
+<a name="2.0.1"></a>
+## <small>2.0.1 (2018-01-09)</small>
+
+* chore: release 2.0.1 with lockfile bump ([09c44fb](https://github.com/vkarpov15/kareem/commit/09c44fb))
+
+
+
+<a name="2.0.0"></a>
+## 2.0.0 (2018-01-09)
+
+* chore: bump marked re: security ([cc564a9](https://github.com/vkarpov15/kareem/commit/cc564a9))
+* chore: release 2.0.0 ([f511d1c](https://github.com/vkarpov15/kareem/commit/f511d1c))
+
+
+
+<a name="2.0.0-rc5"></a>
+## 2.0.0-rc5 (2017-12-23)
+
+* chore: fix build on node 4+5 ([6dac5a4](https://github.com/vkarpov15/kareem/commit/6dac5a4))
+* chore: fix built on node 4 + 5 again ([434ef0a](https://github.com/vkarpov15/kareem/commit/434ef0a))
+* chore: release 2.0.0-rc5 ([25a32ee](https://github.com/vkarpov15/kareem/commit/25a32ee))
+
+
+
+<a name="2.0.0-rc4"></a>
+## 2.0.0-rc4 (2017-12-22)
+
+* chore: release 2.0.0-rc4 ([49fc083](https://github.com/vkarpov15/kareem/commit/49fc083))
+* BREAKING CHANGE: deduplicate when merging hooks re: Automattic/mongoose#2945 ([d458573](https://github.com/vkarpov15/kareem/commit/d458573)), closes [Automattic/mongoose#2945](https://github.com/Automattic/mongoose/issues/2945)
+
+
+
+<a name="2.0.0-rc3"></a>
+## 2.0.0-rc3 (2017-12-22)
+
+* chore: release 2.0.0-rc3 ([adaaa00](https://github.com/vkarpov15/kareem/commit/adaaa00))
+* feat: support returning promises from middleware functions ([05b4480](https://github.com/vkarpov15/kareem/commit/05b4480)), closes [Automattic/mongoose#3779](https://github.com/Automattic/mongoose/issues/3779)
+
+
+
+<a name="2.0.0-rc2"></a>
+## 2.0.0-rc2 (2017-12-21)
+
+* chore: release 2.0.0-rc2 ([76325fa](https://github.com/vkarpov15/kareem/commit/76325fa))
+* fix: ensure next() and done() run in next tick ([6c20684](https://github.com/vkarpov15/kareem/commit/6c20684))
+
+
+
+<a name="2.0.0-rc1"></a>
+## 2.0.0-rc1 (2017-12-21)
+
+* chore: improve test coverage re: Automattic/mongoose#3232 ([7b45cf0](https://github.com/vkarpov15/kareem/commit/7b45cf0)), closes [Automattic/mongoose#3232](https://github.com/Automattic/mongoose/issues/3232)
+* chore: release 2.0.0-rc1 ([9b83f52](https://github.com/vkarpov15/kareem/commit/9b83f52))
+* BREAKING CHANGE: report sync exceptions as errors, only allow calling next() and done() once ([674adcc](https://github.com/vkarpov15/kareem/commit/674adcc)), closes [Automattic/mongoose#3483](https://github.com/Automattic/mongoose/issues/3483)
+
+
+
+<a name="2.0.0-rc0"></a>
+## 2.0.0-rc0 (2017-12-17)
+
+* chore: release 2.0.0-rc0 ([16b44b5](https://github.com/vkarpov15/kareem/commit/16b44b5))
+* BREAKING CHANGE: drop support for node < 4 ([9cbb8c7](https://github.com/vkarpov15/kareem/commit/9cbb8c7))
+* BREAKING CHANGE: remove useLegacyPost and add several new features ([6dd8531](https://github.com/vkarpov15/kareem/commit/6dd8531)), closes [Automattic/mongoose#3232](https://github.com/Automattic/mongoose/issues/3232)
+
+
+
+<a name="1.5.0"></a>
+## 1.5.0 (2017-07-20)
+
+* chore: release 1.5.0 ([9c491a0](https://github.com/vkarpov15/kareem/commit/9c491a0))
+* fix: improve post error handlers results ([9928dd5](https://github.com/vkarpov15/kareem/commit/9928dd5)), closes [Automattic/mongoose#5466](https://github.com/Automattic/mongoose/issues/5466)
+
+
+
+<a name="1.4.2"></a>
+## <small>1.4.2 (2017-07-06)</small>
+
+* chore: release 1.4.2 ([8d14ac5](https://github.com/vkarpov15/kareem/commit/8d14ac5))
+* fix: correct args re: Automattic/mongoose#5405 ([3f28ae6](https://github.com/vkarpov15/kareem/commit/3f28ae6)), closes [Automattic/mongoose#5405](https://github.com/Automattic/mongoose/issues/5405)
+
+
+
+<a name="1.4.1"></a>
+## <small>1.4.1 (2017-04-25)</small>
+
+* chore: release 1.4.1 ([5ecf0c2](https://github.com/vkarpov15/kareem/commit/5ecf0c2))
+* fix: handle numAsyncPres with clone() ([c72e857](https://github.com/vkarpov15/kareem/commit/c72e857)), closes [#8](https://github.com/vkarpov15/kareem/issues/8)
+* test: repro #8 ([9b4d6b2](https://github.com/vkarpov15/kareem/commit/9b4d6b2)), closes [#8](https://github.com/vkarpov15/kareem/issues/8)
+
+
+
+<a name="1.4.0"></a>
+## 1.4.0 (2017-04-19)
+
+* chore: release 1.4.0 ([101c5f5](https://github.com/vkarpov15/kareem/commit/101c5f5))
+* feat: add merge() function ([285325e](https://github.com/vkarpov15/kareem/commit/285325e))
+
+
+
+<a name="1.3.0"></a>
+## 1.3.0 (2017-03-26)
+
+* chore: release 1.3.0 ([f3a9e50](https://github.com/vkarpov15/kareem/commit/f3a9e50))
+* feat: pass function args to execPre ([4dd466d](https://github.com/vkarpov15/kareem/commit/4dd466d))
+
+
+
+<a name="1.2.1"></a>
+## <small>1.2.1 (2017-02-03)</small>
+
+* chore: release 1.2.1 ([d97081f](https://github.com/vkarpov15/kareem/commit/d97081f))
+* fix: filter out _kareemIgnored args for error handlers re: Automattic/mongoose#4925 ([ddc7aeb](https://github.com/vkarpov15/kareem/commit/ddc7aeb)), closes [Automattic/mongoose#4925](https://github.com/Automattic/mongoose/issues/4925)
+* fix: make error handlers handle errors in pre hooks ([af38033](https://github.com/vkarpov15/kareem/commit/af38033)), closes [Automattic/mongoose#4927](https://github.com/Automattic/mongoose/issues/4927)
+
+
+
+<a name="1.2.0"></a>
+## 1.2.0 (2017-01-02)
+
+* chore: release 1.2.0 ([033225c](https://github.com/vkarpov15/kareem/commit/033225c))
+* chore: upgrade deps ([f9e9a09](https://github.com/vkarpov15/kareem/commit/f9e9a09))
+* feat: add _kareemIgnore re: Automattic/mongoose#4836 ([7957771](https://github.com/vkarpov15/kareem/commit/7957771)), closes [Automattic/mongoose#4836](https://github.com/Automattic/mongoose/issues/4836)
+
+
+
+<a name="1.1.5"></a>
+## <small>1.1.5 (2016-12-13)</small>
+
+* chore: release 1.1.5 ([1a9f684](https://github.com/vkarpov15/kareem/commit/1a9f684))
+* fix: correct field name ([04a0e9d](https://github.com/vkarpov15/kareem/commit/04a0e9d))
+
+
+
+<a name="1.1.4"></a>
+## <small>1.1.4 (2016-12-09)</small>
+
+* chore: release 1.1.4 ([ece401c](https://github.com/vkarpov15/kareem/commit/ece401c))
+* chore: run tests on node 6 ([e0cb1cb](https://github.com/vkarpov15/kareem/commit/e0cb1cb))
+* fix: only copy own properties in clone() ([dfe28ce](https://github.com/vkarpov15/kareem/commit/dfe28ce)), closes [#7](https://github.com/vkarpov15/kareem/issues/7)
+
+
+
+<a name="1.1.3"></a>
+## <small>1.1.3 (2016-06-27)</small>
+
+* chore: release 1.1.3 ([87171c8](https://github.com/vkarpov15/kareem/commit/87171c8))
+* fix: couple more issues with arg processing ([c65f523](https://github.com/vkarpov15/kareem/commit/c65f523))
+
+
+
+<a name="1.1.2"></a>
+## <small>1.1.2 (2016-06-27)</small>
+
+* chore: release 1.1.2 ([8e102b6](https://github.com/vkarpov15/kareem/commit/8e102b6))
+* fix: add early return ([4feda4e](https://github.com/vkarpov15/kareem/commit/4feda4e))
+
+
+
+<a name="1.1.1"></a>
+## <small>1.1.1 (2016-06-27)</small>
+
+* chore: release 1.1.1 ([8bb3050](https://github.com/vkarpov15/kareem/commit/8bb3050))
+* fix: skip error handlers if no error ([0eb3a44](https://github.com/vkarpov15/kareem/commit/0eb3a44))
+
+
+
+<a name="1.1.0"></a>
+## 1.1.0 (2016-05-11)
+
+* chore: release 1.1.0 ([85332d9](https://github.com/vkarpov15/kareem/commit/85332d9))
+* chore: test on node 4 and node 5 ([1faefa1](https://github.com/vkarpov15/kareem/commit/1faefa1))
+* 100% coverage again ([c9aee4e](https://github.com/vkarpov15/kareem/commit/c9aee4e))
+* add support for error post hooks ([d378113](https://github.com/vkarpov15/kareem/commit/d378113))
+* basic setup for sync hooks #4 ([55aa081](https://github.com/vkarpov15/kareem/commit/55aa081)), closes [#4](https://github.com/vkarpov15/kareem/issues/4)
+* proof of concept for error handlers ([e4a07d9](https://github.com/vkarpov15/kareem/commit/e4a07d9))
+* refactor out handleWrapError helper ([b19af38](https://github.com/vkarpov15/kareem/commit/b19af38))
+
+
+
+<a name="1.0.1"></a>
+## <small>1.0.1 (2015-05-10)</small>
+
+* Fix #1 ([de60dc6](https://github.com/vkarpov15/kareem/commit/de60dc6)), closes [#1](https://github.com/vkarpov15/kareem/issues/1)
+* release 1.0.1 ([6971088](https://github.com/vkarpov15/kareem/commit/6971088))
+* Run tests on iojs in travis ([adcd201](https://github.com/vkarpov15/kareem/commit/adcd201))
+* support legacy post hook behavior in wrap() ([23fa74c](https://github.com/vkarpov15/kareem/commit/23fa74c))
+* Use node 0.12 in travis ([834689d](https://github.com/vkarpov15/kareem/commit/834689d))
+
+
+
+<a name="1.0.0"></a>
+## 1.0.0 (2015-01-28)
+
+* Tag 1.0.0 ([4c5a35a](https://github.com/vkarpov15/kareem/commit/4c5a35a))
+
+
+
+<a name="0.0.8"></a>
+## <small>0.0.8 (2015-01-27)</small>
+
+* Add clone function ([688bba7](https://github.com/vkarpov15/kareem/commit/688bba7))
+* Add jscs for style checking ([5c93149](https://github.com/vkarpov15/kareem/commit/5c93149))
+* Bump 0.0.8 ([03c0d2f](https://github.com/vkarpov15/kareem/commit/03c0d2f))
+* Fix jscs config, add gulp rules ([9989abf](https://github.com/vkarpov15/kareem/commit/9989abf))
+* fix Makefile typo ([1f7e61a](https://github.com/vkarpov15/kareem/commit/1f7e61a))
+
+
+
+<a name="0.0.7"></a>
+## <small>0.0.7 (2015-01-04)</small>
+
+* Bump 0.0.7 ([98ef173](https://github.com/vkarpov15/kareem/commit/98ef173))
+* fix LearnBoost/mongoose#2553 - use null instead of undefined for err ([9157b48](https://github.com/vkarpov15/kareem/commit/9157b48)), closes [LearnBoost/mongoose#2553](https://github.com/LearnBoost/mongoose/issues/2553)
+* Regenerate docs ([2331cdf](https://github.com/vkarpov15/kareem/commit/2331cdf))
+
+
+
+<a name="0.0.6"></a>
+## <small>0.0.6 (2015-01-01)</small>
+
+* Update docs and bump 0.0.6 ([92c12a7](https://github.com/vkarpov15/kareem/commit/92c12a7))
+
+
+
+<a name="0.0.5"></a>
+## <small>0.0.5 (2015-01-01)</small>
+
+* Add coverage rule to Makefile ([825a91c](https://github.com/vkarpov15/kareem/commit/825a91c))
+* Add coveralls to README ([fb52369](https://github.com/vkarpov15/kareem/commit/fb52369))
+* Add coveralls to travis ([93f6f15](https://github.com/vkarpov15/kareem/commit/93f6f15))
+* Add createWrapper() function ([ea77741](https://github.com/vkarpov15/kareem/commit/ea77741))
+* Add istanbul code coverage ([6eceeef](https://github.com/vkarpov15/kareem/commit/6eceeef))
+* Add some more comments for examples ([c5b0c6f](https://github.com/vkarpov15/kareem/commit/c5b0c6f))
+* Add travis ([e6dcb06](https://github.com/vkarpov15/kareem/commit/e6dcb06))
+* Add travis badge to docs ([ad8c9b3](https://github.com/vkarpov15/kareem/commit/ad8c9b3))
+* Add wrap() tests, 100% coverage ([6945be4](https://github.com/vkarpov15/kareem/commit/6945be4))
+* Better test coverage for execPost ([d9ad539](https://github.com/vkarpov15/kareem/commit/d9ad539))
+* Bump 0.0.5 ([69875b1](https://github.com/vkarpov15/kareem/commit/69875b1))
+* Docs fix ([15b7098](https://github.com/vkarpov15/kareem/commit/15b7098))
+* Fix silly mistake in docs generation ([50373eb](https://github.com/vkarpov15/kareem/commit/50373eb))
+* Fix typo in readme ([fec4925](https://github.com/vkarpov15/kareem/commit/fec4925))
+* Linkify travis badge ([92b25fe](https://github.com/vkarpov15/kareem/commit/92b25fe))
+* Make travis run coverage ([747157b](https://github.com/vkarpov15/kareem/commit/747157b))
+* Move travis status badge ([d52e89b](https://github.com/vkarpov15/kareem/commit/d52e89b))
+* Quick fix for coverage ([50bbddb](https://github.com/vkarpov15/kareem/commit/50bbddb))
+* Typo fix ([adea794](https://github.com/vkarpov15/kareem/commit/adea794))
+
+
+
+<a name="0.0.4"></a>
+## <small>0.0.4 (2014-12-13)</small>
+
+* Bump 0.0.4, run docs generation ([51a15fe](https://github.com/vkarpov15/kareem/commit/51a15fe))
+* Use correct post parameters in wrap() ([9bb5da3](https://github.com/vkarpov15/kareem/commit/9bb5da3))
+
+
+
+<a name="0.0.3"></a>
+## <small>0.0.3 (2014-12-12)</small>
+
+* Add npm test script, fix small bug with args not getting passed through post ([49e3e68](https://github.com/vkarpov15/kareem/commit/49e3e68))
+* Bump 0.0.3 ([65621d8](https://github.com/vkarpov15/kareem/commit/65621d8))
+* Update readme ([901388b](https://github.com/vkarpov15/kareem/commit/901388b))
+
+
+
+<a name="0.0.2"></a>
+## <small>0.0.2 (2014-12-12)</small>
+
+* Add github repo and bump 0.0.2 ([59db8be](https://github.com/vkarpov15/kareem/commit/59db8be))
+
+
+
+<a name="0.0.1"></a>
+## <small>0.0.1 (2014-12-12)</small>
+
+* Add basic docs ([ad29ea4](https://github.com/vkarpov15/kareem/commit/ad29ea4))
+* Add pre hooks ([2ffc356](https://github.com/vkarpov15/kareem/commit/2ffc356))
+* Add wrap function ([68c540c](https://github.com/vkarpov15/kareem/commit/68c540c))
+* Bump to version 0.0.1 ([a4bfd68](https://github.com/vkarpov15/kareem/commit/a4bfd68))
+* Initial commit ([4002458](https://github.com/vkarpov15/kareem/commit/4002458))
+* Initial deposit ([98fc489](https://github.com/vkarpov15/kareem/commit/98fc489))
+* Post hooks ([395b67c](https://github.com/vkarpov15/kareem/commit/395b67c))
+* Some basic setup work ([82df75e](https://github.com/vkarpov15/kareem/commit/82df75e))
+* Support sync pre hooks ([1cc1b9f](https://github.com/vkarpov15/kareem/commit/1cc1b9f))
+* Update package.json description ([978da18](https://github.com/vkarpov15/kareem/commit/978da18))
diff --git a/backend/node_modules/kareem/LICENSE b/backend/node_modules/kareem/LICENSE
new file mode 100644
index 0000000..b0d46d3
--- /dev/null
+++ b/backend/node_modules/kareem/LICENSE
@@ -0,0 +1,202 @@
+Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
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+
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+
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+   Copyright 2014-2022 mongoosejs
+
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+
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+
diff --git a/backend/node_modules/kareem/README.md b/backend/node_modules/kareem/README.md
new file mode 100644
index 0000000..b1e0fdb
--- /dev/null
+++ b/backend/node_modules/kareem/README.md
@@ -0,0 +1,419 @@
+# kareem
+
+  [![Build Status](https://github.com/mongoosejs/kareem/actions/workflows/test.yml/badge.svg?branch=master)](https://github.com/mongoosejs/kareem/actions/workflows/test.yml)
+  <!--[![Coverage Status](https://img.shields.io/coveralls/vkarpov15/kareem.svg)](https://coveralls.io/r/vkarpov15/kareem)-->
+
+Re-imagined take on the [hooks](http://npmjs.org/package/hooks) module, meant to offer additional flexibility in allowing you to execute hooks whenever necessary, as opposed to simply wrapping a single function.
+
+Named for the NBA's all-time leading scorer Kareem Abdul-Jabbar, known for his mastery of the [hook shot](http://en.wikipedia.org/wiki/Kareem_Abdul-Jabbar#Skyhook)
+
+<img src="http://upload.wikimedia.org/wikipedia/commons/0/00/Kareem-Abdul-Jabbar_Lipofsky.jpg" width="220">
+
+# API
+
+## pre hooks
+
+Much like [hooks](https://npmjs.org/package/hooks), kareem lets you define
+pre and post hooks: pre hooks are called before a given function executes.
+Unlike hooks, kareem stores hooks and other internal state in a separate
+object, rather than relying on inheritance. Furthermore, kareem exposes
+an `execPre()` function that allows you to execute your pre hooks when
+appropriate, giving you more fine-grained control over your function hooks.
+
+
+#### It runs without any hooks specified
+
+```javascript
+hooks.execPre('cook', null, function() {
+  // ...
+});
+```
+
+#### It runs basic serial pre hooks
+
+pre hook functions take one parameter, a "done" function that you execute
+when your pre hook is finished.
+
+
+```javascript
+var count = 0;
+
+hooks.pre('cook', function(done) {
+  ++count;
+  done();
+});
+
+hooks.execPre('cook', null, function() {
+  assert.equal(1, count);
+});
+```
+
+#### It can run multipe pre hooks
+
+```javascript
+var count1 = 0;
+var count2 = 0;
+
+hooks.pre('cook', function(done) {
+  ++count1;
+  done();
+});
+
+hooks.pre('cook', function(done) {
+  ++count2;
+  done();
+});
+
+hooks.execPre('cook', null, function() {
+  assert.equal(1, count1);
+  assert.equal(1, count2);
+});
+```
+
+#### It can run fully synchronous pre hooks
+
+If your pre hook function takes no parameters, its assumed to be
+fully synchronous.
+
+
+```javascript
+var count1 = 0;
+var count2 = 0;
+
+hooks.pre('cook', function() {
+  ++count1;
+});
+
+hooks.pre('cook', function() {
+  ++count2;
+});
+
+hooks.execPre('cook', null, function(error) {
+  assert.equal(null, error);
+  assert.equal(1, count1);
+  assert.equal(1, count2);
+});
+```
+
+#### It properly attaches context to pre hooks
+
+Pre save hook functions are bound to the second parameter to `execPre()`
+
+
+```javascript
+hooks.pre('cook', function(done) {
+  this.bacon = 3;
+  done();
+});
+
+hooks.pre('cook', function(done) {
+  this.eggs = 4;
+  done();
+});
+
+var obj = { bacon: 0, eggs: 0 };
+
+// In the pre hooks, `this` will refer to `obj`
+hooks.execPre('cook', obj, function(error) {
+  assert.equal(null, error);
+  assert.equal(3, obj.bacon);
+  assert.equal(4, obj.eggs);
+});
+```
+
+#### It can execute parallel (async) pre hooks
+
+Like the hooks module, you can declare "async" pre hooks - these take two
+parameters, the functions `next()` and `done()`. `next()` passes control to
+the next pre hook, but the underlying function won't be called until all
+async pre hooks have called `done()`.
+
+
+```javascript
+hooks.pre('cook', true, function(next, done) {
+  this.bacon = 3;
+  next();
+  setTimeout(function() {
+    done();
+  }, 5);
+});
+
+hooks.pre('cook', true, function(next, done) {
+  next();
+  var _this = this;
+  setTimeout(function() {
+    _this.eggs = 4;
+    done();
+  }, 10);
+});
+
+hooks.pre('cook', function(next) {
+  this.waffles = false;
+  next();
+});
+
+var obj = { bacon: 0, eggs: 0 };
+
+hooks.execPre('cook', obj, function() {
+  assert.equal(3, obj.bacon);
+  assert.equal(4, obj.eggs);
+  assert.equal(false, obj.waffles);
+});
+```
+
+#### It supports returning a promise
+
+You can also return a promise from your pre hooks instead of calling
+`next()`. When the returned promise resolves, kareem will kick off the
+next middleware.
+
+
+```javascript
+hooks.pre('cook', function() {
+  return new Promise(resolve => {
+    setTimeout(() => {
+      this.bacon = 3;
+      resolve();
+    }, 100);
+  });
+});
+
+var obj = { bacon: 0 };
+
+hooks.execPre('cook', obj, function() {
+  assert.equal(3, obj.bacon);
+});
+```
+
+## post hooks
+
+acquit:ignore:end
+
+#### It runs without any hooks specified
+
+```javascript
+hooks.execPost('cook', null, [1], function(error, eggs) {
+  assert.ifError(error);
+  assert.equal(1, eggs);
+  done();
+});
+```
+
+#### It executes with parameters passed in
+
+```javascript
+hooks.post('cook', function(eggs, bacon, callback) {
+  assert.equal(1, eggs);
+  assert.equal(2, bacon);
+  callback();
+});
+
+hooks.execPost('cook', null, [1, 2], function(error, eggs, bacon) {
+  assert.ifError(error);
+  assert.equal(1, eggs);
+  assert.equal(2, bacon);
+});
+```
+
+#### It can use synchronous post hooks
+
+```javascript
+var execed = {};
+
+hooks.post('cook', function(eggs, bacon) {
+  execed.first = true;
+  assert.equal(1, eggs);
+  assert.equal(2, bacon);
+});
+
+hooks.post('cook', function(eggs, bacon, callback) {
+  execed.second = true;
+  assert.equal(1, eggs);
+  assert.equal(2, bacon);
+  callback();
+});
+
+hooks.execPost('cook', null, [1, 2], function(error, eggs, bacon) {
+  assert.ifError(error);
+  assert.equal(2, Object.keys(execed).length);
+  assert.ok(execed.first);
+  assert.ok(execed.second);
+  assert.equal(1, eggs);
+  assert.equal(2, bacon);
+});
+```
+
+#### It supports returning a promise
+
+You can also return a promise from your post hooks instead of calling
+`next()`. When the returned promise resolves, kareem will kick off the
+next middleware.
+
+
+```javascript
+hooks.post('cook', function(bacon) {
+  return new Promise(resolve => {
+    setTimeout(() => {
+      this.bacon = 3;
+      resolve();
+    }, 100);
+  });
+});
+
+var obj = { bacon: 0 };
+
+hooks.execPost('cook', obj, obj, function() {
+  assert.equal(obj.bacon, 3);
+});
+```
+
+## wrap()
+
+acquit:ignore:end
+
+#### It wraps pre and post calls into one call
+
+```javascript
+hooks.pre('cook', true, function(next, done) {
+  this.bacon = 3;
+  next();
+  setTimeout(function() {
+    done();
+  }, 5);
+});
+
+hooks.pre('cook', true, function(next, done) {
+  next();
+  var _this = this;
+  setTimeout(function() {
+    _this.eggs = 4;
+    done();
+  }, 10);
+});
+
+hooks.pre('cook', function(next) {
+  this.waffles = false;
+  next();
+});
+
+hooks.post('cook', function(obj) {
+  obj.tofu = 'no';
+});
+
+var obj = { bacon: 0, eggs: 0 };
+
+var args = [obj];
+args.push(function(error, result) {
+  assert.ifError(error);
+  assert.equal(null, error);
+  assert.equal(3, obj.bacon);
+  assert.equal(4, obj.eggs);
+  assert.equal(false, obj.waffles);
+  assert.equal('no', obj.tofu);
+
+  assert.equal(obj, result);
+});
+
+hooks.wrap(
+  'cook',
+  function(o, callback) {
+    assert.equal(3, obj.bacon);
+    assert.equal(4, obj.eggs);
+    assert.equal(false, obj.waffles);
+    assert.equal(undefined, obj.tofu);
+    callback(null, o);
+  },
+  obj,
+  args);
+```
+
+## createWrapper()
+
+#### It wraps wrap() into a callable function
+
+```javascript
+hooks.pre('cook', true, function(next, done) {
+  this.bacon = 3;
+  next();
+  setTimeout(function() {
+    done();
+  }, 5);
+});
+
+hooks.pre('cook', true, function(next, done) {
+  next();
+  var _this = this;
+  setTimeout(function() {
+    _this.eggs = 4;
+    done();
+  }, 10);
+});
+
+hooks.pre('cook', function(next) {
+  this.waffles = false;
+  next();
+});
+
+hooks.post('cook', function(obj) {
+  obj.tofu = 'no';
+});
+
+var obj = { bacon: 0, eggs: 0 };
+
+var cook = hooks.createWrapper(
+  'cook',
+  function(o, callback) {
+    assert.equal(3, obj.bacon);
+    assert.equal(4, obj.eggs);
+    assert.equal(false, obj.waffles);
+    assert.equal(undefined, obj.tofu);
+    callback(null, o);
+  },
+  obj);
+
+cook(obj, function(error, result) {
+  assert.ifError(error);
+  assert.equal(3, obj.bacon);
+  assert.equal(4, obj.eggs);
+  assert.equal(false, obj.waffles);
+  assert.equal('no', obj.tofu);
+
+  assert.equal(obj, result);
+});
+```
+
+## clone()
+
+acquit:ignore:end
+
+#### It clones a Kareem object
+
+```javascript
+var k1 = new Kareem();
+k1.pre('cook', function() {});
+k1.post('cook', function() {});
+
+var k2 = k1.clone();
+assert.deepEqual(Array.from(k2._pres.keys()), ['cook']);
+assert.deepEqual(Array.from(k2._posts.keys()), ['cook']);
+```
+
+## merge()
+
+#### It pulls hooks from another Kareem object
+
+```javascript
+var k1 = new Kareem();
+var test1 = function() {};
+k1.pre('cook', test1);
+k1.post('cook', function() {});
+
+var k2 = new Kareem();
+var test2 = function() {};
+k2.pre('cook', test2);
+var k3 = k2.merge(k1);
+assert.equal(k3._pres.get('cook').length, 2);
+assert.equal(k3._pres.get('cook')[0].fn, test2);
+assert.equal(k3._pres.get('cook')[1].fn, test1);
+assert.equal(k3._posts.get('cook').length, 1);
+```
diff --git a/backend/node_modules/kareem/SECURITY.md b/backend/node_modules/kareem/SECURITY.md
new file mode 100644
index 0000000..da9c516
--- /dev/null
+++ b/backend/node_modules/kareem/SECURITY.md
@@ -0,0 +1,5 @@
+## Security contact information
+
+To report a security vulnerability, please use the
+[Tidelift security contact](https://tidelift.com/security).
+Tidelift will coordinate the fix and disclosure.
diff --git a/backend/node_modules/kareem/index.d.ts b/backend/node_modules/kareem/index.d.ts
new file mode 100644
index 0000000..cc9247d
--- /dev/null
+++ b/backend/node_modules/kareem/index.d.ts
@@ -0,0 +1,29 @@
+declare module "kareem" {
+  export default class Kareem {
+    static skipWrappedFunction(): SkipWrappedFunction;
+    static overwriteMiddlewareResult(): OverwriteMiddlewareResult;
+
+    pre(name: string | RegExp, fn: Function): this;
+    pre(name: string | RegExp, options: Record<string, any>, fn: Function, error?: any, unshift?: boolean): this;
+    post(name: string | RegExp, fn: Function): this;
+    post(name: string | RegExp, options: Record<string, any>, fn: Function, unshift?: boolean): this;
+
+    clone(): Kareem;
+    merge(other: Kareem, clone?: boolean): this;
+
+    createWrapper(name: string, fn: Function, context?: any, options?: Record<string, any>): Function;
+    createWrapperSync(name: string, fn: Function): Function;
+    hasHooks(name: string): boolean;
+    filter(fn: Function): Kareem;
+
+    wrap(name: string, fn: Function, context: any, args: any[], options?: Record<string, any>): Function;
+
+    execPostSync(name: string, context: any, args: any[]): any;
+    execPost(name: string, context: any, args: any[], options?: Record<string, any>, callback?: Function): void;
+    execPreSync(name: string, context: any, args: any[]): any;
+    execPre(name: string, context: any, args: any[], callback?: Function): void;
+  }
+
+  class SkipWrappedFunction {}
+  class OverwriteMiddlewareResult {}
+}
diff --git a/backend/node_modules/kareem/index.js b/backend/node_modules/kareem/index.js
new file mode 100644
index 0000000..9c5aa16
--- /dev/null
+++ b/backend/node_modules/kareem/index.js
@@ -0,0 +1,668 @@
+'use strict';
+
+/**
+ * Create a new instance
+ */
+function Kareem() {
+  this._pres = new Map();
+  this._posts = new Map();
+}
+
+Kareem.skipWrappedFunction = function skipWrappedFunction() {
+  if (!(this instanceof Kareem.skipWrappedFunction)) {
+    return new Kareem.skipWrappedFunction(...arguments);
+  }
+
+  this.args = [...arguments];
+};
+
+Kareem.overwriteResult = function overwriteResult() {
+  if (!(this instanceof Kareem.overwriteResult)) {
+    return new Kareem.overwriteResult(...arguments);
+  }
+
+  this.args = [...arguments];
+};
+
+/**
+ * Execute all "pre" hooks for "name"
+ * @param {String} name The hook name to execute
+ * @param {*} context Overwrite the "this" for the hook
+ * @param {Array|Function} args Optional arguments or directly the callback
+ * @param {Function} [callback] The callback to call when executing all hooks are finished
+ * @returns {void}
+ */
+Kareem.prototype.execPre = function(name, context, args, callback) {
+  if (arguments.length === 3) {
+    callback = args;
+    args = [];
+  }
+  const pres = this._pres.get(name) || [];
+  const numPres = pres.length;
+  const numAsyncPres = pres.numAsync || 0;
+  let currentPre = 0;
+  let asyncPresLeft = numAsyncPres;
+  let done = false;
+  const $args = args;
+  let shouldSkipWrappedFunction = null;
+
+  if (!numPres) {
+    return nextTick(function() {
+      callback(null);
+    });
+  }
+
+  function next() {
+    if (currentPre >= numPres) {
+      return;
+    }
+    const pre = pres[currentPre];
+
+    if (pre.isAsync) {
+      const args = [
+        decorateNextFn(_next),
+        decorateNextFn(function(error) {
+          if (error) {
+            if (done) {
+              return;
+            }
+            if (error instanceof Kareem.skipWrappedFunction) {
+              shouldSkipWrappedFunction = error;
+            } else {
+              done = true;
+              return callback(error);
+            }
+          }
+          if (--asyncPresLeft === 0 && currentPre >= numPres) {
+            return callback(shouldSkipWrappedFunction);
+          }
+        })
+      ];
+
+      callMiddlewareFunction(pre.fn, context, args, args[0]);
+    } else if (pre.fn.length > 0) {
+      const args = [decorateNextFn(_next)];
+      const _args = arguments.length >= 2 ? arguments : [null].concat($args);
+      for (let i = 1; i < _args.length; ++i) {
+        if (i === _args.length - 1 && typeof _args[i] === 'function') {
+          continue; // skip callbacks to avoid accidentally calling the callback from a hook
+        }
+        args.push(_args[i]);
+      }
+
+      callMiddlewareFunction(pre.fn, context, args, args[0]);
+    } else {
+      let maybePromiseLike = null;
+      try {
+        maybePromiseLike = pre.fn.call(context);
+      } catch (err) {
+        if (err != null) {
+          return callback(err);
+        }
+      }
+
+      if (isPromiseLike(maybePromiseLike)) {
+        maybePromiseLike.then(() => _next(), err => _next(err));
+      } else {
+        if (++currentPre >= numPres) {
+          if (asyncPresLeft > 0) {
+            // Leave parallel hooks to run
+            return;
+          } else {
+            return nextTick(function() {
+              callback(shouldSkipWrappedFunction);
+            });
+          }
+        }
+        next();
+      }
+    }
+  }
+
+  next.apply(null, [null].concat(args));
+
+  function _next(error) {
+    if (error) {
+      if (done) {
+        return;
+      }
+      if (error instanceof Kareem.skipWrappedFunction) {
+        shouldSkipWrappedFunction = error;
+      } else {
+        done = true;
+        return callback(error);
+      }
+    }
+
+    if (++currentPre >= numPres) {
+      if (asyncPresLeft > 0) {
+        // Leave parallel hooks to run
+        return;
+      } else {
+        return callback(shouldSkipWrappedFunction);
+      }
+    }
+
+    next.apply(context, arguments);
+  }
+};
+
+/**
+ * Execute all "pre" hooks for "name" synchronously
+ * @param {String} name The hook name to execute
+ * @param {*} context Overwrite the "this" for the hook
+ * @param {Array} [args] Apply custom arguments to the hook
+ * @returns {void}
+ */
+Kareem.prototype.execPreSync = function(name, context, args) {
+  const pres = this._pres.get(name) || [];
+  const numPres = pres.length;
+
+  for (let i = 0; i < numPres; ++i) {
+    pres[i].fn.apply(context, args || []);
+  }
+};
+
+/**
+ * Execute all "post" hooks for "name"
+ * @param {String} name The hook name to execute
+ * @param {*} context Overwrite the "this" for the hook
+ * @param {Array|Function} args Apply custom arguments to the hook
+ * @param {*} options Optional options or directly the callback
+ * @param {Function} [callback] The callback to call when executing all hooks are finished
+ * @returns {void}
+ */
+Kareem.prototype.execPost = function(name, context, args, options, callback) {
+  if (arguments.length < 5) {
+    callback = options;
+    options = null;
+  }
+  const posts = this._posts.get(name) || [];
+  const numPosts = posts.length;
+  let currentPost = 0;
+
+  let firstError = null;
+  if (options && options.error) {
+    firstError = options.error;
+  }
+
+  if (!numPosts) {
+    return nextTick(function() {
+      callback.apply(null, [firstError].concat(args));
+    });
+  }
+
+  function next() {
+    const post = posts[currentPost].fn;
+    let numArgs = 0;
+    const argLength = args.length;
+    const newArgs = [];
+    for (let i = 0; i < argLength; ++i) {
+      numArgs += args[i] && args[i]._kareemIgnore ? 0 : 1;
+      if (!args[i] || !args[i]._kareemIgnore) {
+        newArgs.push(args[i]);
+      }
+    }
+
+    if (firstError) {
+      if (isErrorHandlingMiddleware(posts[currentPost], numArgs)) {
+        const _cb = decorateNextFn(function(error) {
+          if (error) {
+            if (error instanceof Kareem.overwriteResult) {
+              args = error.args;
+              if (++currentPost >= numPosts) {
+                return callback.call(null, firstError);
+              }
+              return next();
+            }
+            firstError = error;
+          }
+          if (++currentPost >= numPosts) {
+            return callback.call(null, firstError);
+          }
+          next();
+        });
+
+        callMiddlewareFunction(post, context,
+          [firstError].concat(newArgs).concat([_cb]), _cb);
+      } else {
+        if (++currentPost >= numPosts) {
+          return callback.call(null, firstError);
+        }
+        next();
+      }
+    } else {
+      const _cb = decorateNextFn(function(error) {
+        if (error) {
+          if (error instanceof Kareem.overwriteResult) {
+            args = error.args;
+            if (++currentPost >= numPosts) {
+              return callback.apply(null, [null].concat(args));
+            }
+            return next();
+          }
+          firstError = error;
+          return next();
+        }
+
+        if (++currentPost >= numPosts) {
+          return callback.apply(null, [null].concat(args));
+        }
+
+        next();
+      });
+
+      if (isErrorHandlingMiddleware(posts[currentPost], numArgs)) {
+        // Skip error handlers if no error
+        if (++currentPost >= numPosts) {
+          return callback.apply(null, [null].concat(args));
+        }
+        return next();
+      }
+      if (post.length === numArgs + 1) {
+        callMiddlewareFunction(post, context, newArgs.concat([_cb]), _cb);
+      } else {
+        let error;
+        let maybePromiseLike;
+        try {
+          maybePromiseLike = post.apply(context, newArgs);
+        } catch (err) {
+          error = err;
+          firstError = err;
+        }
+
+        if (isPromiseLike(maybePromiseLike)) {
+          return maybePromiseLike.then(
+            (res) => {
+              _cb(res instanceof Kareem.overwriteResult ? res : null);
+            },
+            err => _cb(err)
+          );
+        }
+
+        if (maybePromiseLike instanceof Kareem.overwriteResult) {
+          args = maybePromiseLike.args;
+        }
+
+        if (++currentPost >= numPosts) {
+          return callback.apply(null, [error].concat(args));
+        }
+
+        next();
+      }
+    }
+  }
+
+  next();
+};
+
+/**
+ * Execute all "post" hooks for "name" synchronously
+ * @param {String} name The hook name to execute
+ * @param {*} context Overwrite the "this" for the hook
+ * @param {Array|Function} args Apply custom arguments to the hook
+ * @returns {Array} The used arguments
+ */
+Kareem.prototype.execPostSync = function(name, context, args) {
+  const posts = this._posts.get(name) || [];
+  const numPosts = posts.length;
+
+  for (let i = 0; i < numPosts; ++i) {
+    const res = posts[i].fn.apply(context, args || []);
+    if (res instanceof Kareem.overwriteResult) {
+      args = res.args;
+    }
+  }
+
+  return args;
+};
+
+/**
+ * Create a synchronous wrapper for "fn"
+ * @param {String} name The name of the hook
+ * @param {Function} fn The function to wrap
+ * @returns {Function} The wrapped function
+ */
+Kareem.prototype.createWrapperSync = function(name, fn) {
+  const _this = this;
+  return function syncWrapper() {
+    _this.execPreSync(name, this, arguments);
+
+    const toReturn = fn.apply(this, arguments);
+
+    const result = _this.execPostSync(name, this, [toReturn]);
+
+    return result[0];
+  };
+};
+
+function _handleWrapError(instance, error, name, context, args, options, callback) {
+  if (options.useErrorHandlers) {
+    return instance.execPost(name, context, args, { error: error }, function(error) {
+      return typeof callback === 'function' && callback(error);
+    });
+  } else {
+    return typeof callback === 'function' && callback(error);
+  }
+}
+
+/**
+ * Executes pre hooks, followed by the wrapped function, followed by post hooks.
+ * @param {String} name The name of the hook
+ * @param {Function} fn The function for the hook
+ * @param {*} context Overwrite the "this" for the hook
+ * @param {Array} args Apply custom arguments to the hook
+ * @param {Object} [options]
+ * @param {Boolean} [options.checkForPromise]
+ * @returns {void}
+ */
+Kareem.prototype.wrap = function(name, fn, context, args, options) {
+  const lastArg = (args.length > 0 ? args[args.length - 1] : null);
+  const argsWithoutCb = Array.from(args);
+  typeof lastArg === 'function' && argsWithoutCb.pop();
+  const _this = this;
+
+  options = options || {};
+  const checkForPromise = options.checkForPromise;
+
+  this.execPre(name, context, args, function(error) {
+    if (error && !(error instanceof Kareem.skipWrappedFunction)) {
+      const numCallbackParams = options.numCallbackParams || 0;
+      const errorArgs = options.contextParameter ? [context] : [];
+      for (let i = errorArgs.length; i < numCallbackParams; ++i) {
+        errorArgs.push(null);
+      }
+      return _handleWrapError(_this, error, name, context, errorArgs,
+        options, lastArg);
+    }
+
+    const numParameters = fn.length;
+    let ret;
+
+    if (error instanceof Kareem.skipWrappedFunction) {
+      ret = error.args[0];
+      return _cb(null, ...error.args);
+    } else {
+      try {
+        ret = fn.apply(context, argsWithoutCb.concat(_cb));
+      } catch (err) {
+        return _cb(err);
+      }
+    }
+
+    if (checkForPromise) {
+      if (isPromiseLike(ret)) {
+        // Thenable, use it
+        return ret.then(
+          res => _cb(null, res),
+          err => _cb(err)
+        );
+      }
+
+      // If `fn()` doesn't have a callback argument and doesn't return a
+      // promise, assume it is sync
+      if (numParameters < argsWithoutCb.length + 1) {
+        return _cb(null, ret);
+      }
+    }
+
+    function _cb() {
+      const argsWithoutError = Array.from(arguments);
+      argsWithoutError.shift();
+      if (options.nullResultByDefault && argsWithoutError.length === 0) {
+        argsWithoutError.push(null);
+      }
+      if (arguments[0]) {
+        // Assume error
+        return _handleWrapError(_this, arguments[0], name, context,
+          argsWithoutError, options, lastArg);
+      } else {
+        _this.execPost(name, context, argsWithoutError, function() {
+          if (lastArg === null) {
+            return;
+          }
+          arguments[0]
+            ? lastArg(arguments[0])
+            : lastArg.apply(context, arguments);
+        });
+      }
+    }
+  });
+};
+
+/**
+ * Filter current instance for something specific and return the filtered clone
+ * @param {Function} fn The filter function
+ * @returns {Kareem} The cloned and filtered instance
+ */
+Kareem.prototype.filter = function(fn) {
+  const clone = this.clone();
+
+  const pres = Array.from(clone._pres.keys());
+  for (const name of pres) {
+    const hooks = this._pres.get(name).
+      map(h => Object.assign({}, h, { name: name })).
+      filter(fn);
+
+    if (hooks.length === 0) {
+      clone._pres.delete(name);
+      continue;
+    }
+
+    hooks.numAsync = hooks.filter(h => h.isAsync).length;
+
+    clone._pres.set(name, hooks);
+  }
+
+  const posts = Array.from(clone._posts.keys());
+  for (const name of posts) {
+    const hooks = this._posts.get(name).
+      map(h => Object.assign({}, h, { name: name })).
+      filter(fn);
+
+    if (hooks.length === 0) {
+      clone._posts.delete(name);
+      continue;
+    }
+
+    clone._posts.set(name, hooks);
+  }
+
+  return clone;
+};
+
+/**
+ * Check for a "name" to exist either in pre or post hooks
+ * @param {String} name The name of the hook
+ * @returns {Boolean} "true" if found, "false" otherwise
+ */
+Kareem.prototype.hasHooks = function(name) {
+  return this._pres.has(name) || this._posts.has(name);
+};
+
+/**
+ * Create a Wrapper for "fn" on "name" and return the wrapped function
+ * @param {String} name The name of the hook
+ * @param {Function} fn The function to wrap
+ * @param {*} context Overwrite the "this" for the hook
+ * @param {Object} [options]
+ * @returns {Function} The wrapped function
+ */
+Kareem.prototype.createWrapper = function(name, fn, context, options) {
+  const _this = this;
+  if (!this.hasHooks(name)) {
+    // Fast path: if there's no hooks for this function, just return the
+    // function wrapped in a nextTick()
+    return function() {
+      nextTick(() => fn.apply(this, arguments));
+    };
+  }
+  return function() {
+    const _context = context || this;
+    _this.wrap(name, fn, _context, Array.from(arguments), options);
+  };
+};
+
+/**
+ * Register a new hook for "pre"
+ * @param {String} name The name of the hook
+ * @param {Boolean} [isAsync]
+ * @param {Function} fn The function to register for "name"
+ * @param {never} error Unused
+ * @param {Boolean} [unshift] Wheter to "push" or to "unshift" the new hook
+ * @returns {Kareem}
+ */
+Kareem.prototype.pre = function(name, isAsync, fn, error, unshift) {
+  let options = {};
+  if (typeof isAsync === 'object' && isAsync !== null) {
+    options = isAsync;
+    isAsync = options.isAsync;
+  } else if (typeof arguments[1] !== 'boolean') {
+    fn = isAsync;
+    isAsync = false;
+  }
+
+  const pres = this._pres.get(name) || [];
+  this._pres.set(name, pres);
+
+  if (isAsync) {
+    pres.numAsync = pres.numAsync || 0;
+    ++pres.numAsync;
+  }
+
+  if (typeof fn !== 'function') {
+    throw new Error('pre() requires a function, got "' + typeof fn + '"');
+  }
+
+  if (unshift) {
+    pres.unshift(Object.assign({}, options, { fn: fn, isAsync: isAsync }));
+  } else {
+    pres.push(Object.assign({}, options, { fn: fn, isAsync: isAsync }));
+  }
+
+  return this;
+};
+
+/**
+ * Register a new hook for "post"
+ * @param {String} name The name of the hook
+ * @param {Object} [options]
+ * @param {Function} fn The function to register for "name"
+ * @param {Boolean} [unshift] Wheter to "push" or to "unshift" the new hook
+ * @returns {Kareem}
+ */
+Kareem.prototype.post = function(name, options, fn, unshift) {
+  const posts = this._posts.get(name) || [];
+
+  if (typeof options === 'function') {
+    unshift = !!fn;
+    fn = options;
+    options = {};
+  }
+
+  if (typeof fn !== 'function') {
+    throw new Error('post() requires a function, got "' + typeof fn + '"');
+  }
+
+  if (unshift) {
+    posts.unshift(Object.assign({}, options, { fn: fn }));
+  } else {
+    posts.push(Object.assign({}, options, { fn: fn }));
+  }
+  this._posts.set(name, posts);
+  return this;
+};
+
+/**
+ * Clone the current instance
+ * @returns {Kareem} The cloned instance
+ */
+Kareem.prototype.clone = function() {
+  const n = new Kareem();
+
+  for (const key of this._pres.keys()) {
+    const clone = this._pres.get(key).slice();
+    clone.numAsync = this._pres.get(key).numAsync;
+    n._pres.set(key, clone);
+  }
+  for (const key of this._posts.keys()) {
+    n._posts.set(key, this._posts.get(key).slice());
+  }
+
+  return n;
+};
+
+/**
+ * Merge "other" into self or "clone"
+ * @param {Kareem} other The instance to merge with
+ * @param {Kareem} [clone] The instance to merge onto (if not defined, using "this")
+ * @returns {Kareem} The merged instance
+ */
+Kareem.prototype.merge = function(other, clone) {
+  clone = arguments.length === 1 ? true : clone;
+  const ret = clone ? this.clone() : this;
+
+  for (const key of other._pres.keys()) {
+    const sourcePres = ret._pres.get(key) || [];
+    const deduplicated = other._pres.get(key).
+      // Deduplicate based on `fn`
+      filter(p => sourcePres.map(_p => _p.fn).indexOf(p.fn) === -1);
+    const combined = sourcePres.concat(deduplicated);
+    combined.numAsync = sourcePres.numAsync || 0;
+    combined.numAsync += deduplicated.filter(p => p.isAsync).length;
+    ret._pres.set(key, combined);
+  }
+  for (const key of other._posts.keys()) {
+    const sourcePosts = ret._posts.get(key) || [];
+    const deduplicated = other._posts.get(key).
+      filter(p => sourcePosts.indexOf(p) === -1);
+    ret._posts.set(key, sourcePosts.concat(deduplicated));
+  }
+
+  return ret;
+};
+
+function callMiddlewareFunction(fn, context, args, next) {
+  let maybePromiseLike;
+  try {
+    maybePromiseLike = fn.apply(context, args);
+  } catch (error) {
+    return next(error);
+  }
+
+  if (isPromiseLike(maybePromiseLike)) {
+    maybePromiseLike.then(() => next(), err => next(err));
+  }
+}
+
+function isPromiseLike(v) {
+  return (typeof v === 'object' && v !== null && typeof v.then === 'function');
+}
+
+function decorateNextFn(fn) {
+  let called = false;
+  const _this = this;
+  return function() {
+    // Ensure this function can only be called once
+    if (called) {
+      return;
+    }
+    called = true;
+    // Make sure to clear the stack so try/catch doesn't catch errors
+    // in subsequent middleware
+    return nextTick(() => fn.apply(_this, arguments));
+  };
+}
+
+const nextTick = typeof process === 'object' && process !== null && process.nextTick || function nextTick(cb) {
+  setTimeout(cb, 0);
+};
+
+function isErrorHandlingMiddleware(post, numArgs) {
+  if (post.errorHandler) {
+    return true;
+  }
+  return post.fn.length === numArgs + 2;
+}
+
+module.exports = Kareem;
diff --git a/backend/node_modules/kareem/package.json b/backend/node_modules/kareem/package.json
new file mode 100644
index 0000000..6c8af39
--- /dev/null
+++ b/backend/node_modules/kareem/package.json
@@ -0,0 +1,28 @@
+{
+  "name": "kareem",
+  "version": "2.6.3",
+  "description": "Next-generation take on pre/post function hooks",
+  "main": "index.js",
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha ./test/*",
+    "test-coverage": "nyc --reporter lcov mocha ./test/*",
+    "docs": "node ./docs.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/mongoosejs/kareem.git"
+  },
+  "devDependencies": {
+    "acquit": "1.x",
+    "acquit-ignore": "0.2.x",
+    "eslint": "8.20.0",
+    "mocha": "9.2.0",
+    "nyc": "15.1.0"
+  },
+  "author": "Valeri Karpov <val@karpov.io>",
+  "license": "Apache-2.0",
+  "engines": {
+    "node": ">=12.0.0"
+  }
+}
diff --git a/backend/node_modules/math-intrinsics/.eslintrc b/backend/node_modules/math-intrinsics/.eslintrc
new file mode 100644
index 0000000..d90a1bc
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/.eslintrc
@@ -0,0 +1,16 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"eqeqeq": ["error", "allow-null"],
+		"id-length": "off",
+		"new-cap": ["error", {
+			"capIsNewExceptions": [
+				"RequireObjectCoercible",
+				"ToObject",
+			],
+		}],
+	},
+}
diff --git a/backend/node_modules/math-intrinsics/.github/FUNDING.yml b/backend/node_modules/math-intrinsics/.github/FUNDING.yml
new file mode 100644
index 0000000..868f4ff
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/math-intrinsics
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with a single custom sponsorship URL
diff --git a/backend/node_modules/math-intrinsics/CHANGELOG.md b/backend/node_modules/math-intrinsics/CHANGELOG.md
new file mode 100644
index 0000000..9cf48f5
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/CHANGELOG.md
@@ -0,0 +1,24 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.1.0](https://github.com/es-shims/math-intrinsics/compare/v1.0.0...v1.1.0) - 2024-12-18
+
+### Commits
+
+- [New] add `round` [`7cfb044`](https://github.com/es-shims/math-intrinsics/commit/7cfb04460c0fbdf1ca101eecbac3f59d11994130)
+- [Tests] add attw [`e96be8f`](https://github.com/es-shims/math-intrinsics/commit/e96be8fbf58449eafe976446a0470e6ea561ad8d)
+- [Dev Deps] update `@types/tape` [`30d0023`](https://github.com/es-shims/math-intrinsics/commit/30d00234ce8a3fa0094a61cd55d6686eb91e36ec)
+
+## v1.0.0 - 2024-12-11
+
+### Commits
+
+- Initial implementation, tests, readme, types [`b898caa`](https://github.com/es-shims/math-intrinsics/commit/b898caae94e9994a94a42b8740f7bbcfd0a868fe)
+- Initial commit [`02745b0`](https://github.com/es-shims/math-intrinsics/commit/02745b03a62255af8a332771987b55d127538d9c)
+- [New] add `constants/maxArrayLength`, `mod` [`b978178`](https://github.com/es-shims/math-intrinsics/commit/b978178a57685bd23ed1c7efe2137f3784f5fcc5)
+- npm init [`a39fc57`](https://github.com/es-shims/math-intrinsics/commit/a39fc57e5639a645d0bd52a0dc56202480223be2)
+- Only apps should have lockfiles [`9451580`](https://github.com/es-shims/math-intrinsics/commit/94515800fb34db4f3cc7e99290042d45609ac7bd)
diff --git a/backend/node_modules/math-intrinsics/LICENSE b/backend/node_modules/math-intrinsics/LICENSE
new file mode 100644
index 0000000..34995e7
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 ECMAScript Shims
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/math-intrinsics/README.md b/backend/node_modules/math-intrinsics/README.md
new file mode 100644
index 0000000..4a66dcf
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/README.md
@@ -0,0 +1,50 @@
+# math-intrinsics <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+ES Math-related intrinsics and helpers, robustly cached.
+
+ - `abs`
+ - `floor`
+ - `isFinite`
+ - `isInteger`
+ - `isNaN`
+ - `isNegativeZero`
+ - `max`
+ - `min`
+ - `mod`
+ - `pow`
+ - `round`
+ - `sign`
+ - `constants/maxArrayLength`
+ - `constants/maxSafeInteger`
+ - `constants/maxValue`
+
+
+## Tests
+Simply clone the repo, `npm install`, and run `npm test`
+
+## Security
+
+Please email [@ljharb](https://github.com/ljharb) or see https://tidelift.com/security if you have a potential security vulnerability to report.
+
+[package-url]: https://npmjs.org/package/math-intrinsics
+[npm-version-svg]: https://versionbadg.es/es-shims/math-intrinsics.svg
+[deps-svg]: https://david-dm.org/es-shims/math-intrinsics.svg
+[deps-url]: https://david-dm.org/es-shims/math-intrinsics
+[dev-deps-svg]: https://david-dm.org/es-shims/math-intrinsics/dev-status.svg
+[dev-deps-url]: https://david-dm.org/es-shims/math-intrinsics#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/math-intrinsics.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/math-intrinsics.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/es-object.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=math-intrinsics
+[codecov-image]: https://codecov.io/gh/es-shims/math-intrinsics/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/es-shims/math-intrinsics/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/es-shims/math-intrinsics
+[actions-url]: https://github.com/es-shims/math-intrinsics/actions
diff --git a/backend/node_modules/math-intrinsics/abs.d.ts b/backend/node_modules/math-intrinsics/abs.d.ts
new file mode 100644
index 0000000..14ad9c6
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/abs.d.ts
@@ -0,0 +1 @@
+export = Math.abs;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/abs.js b/backend/node_modules/math-intrinsics/abs.js
new file mode 100644
index 0000000..a751424
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/abs.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./abs')} */
+module.exports = Math.abs;
diff --git a/backend/node_modules/math-intrinsics/constants/maxArrayLength.d.ts b/backend/node_modules/math-intrinsics/constants/maxArrayLength.d.ts
new file mode 100644
index 0000000..b92d46b
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/constants/maxArrayLength.d.ts
@@ -0,0 +1,3 @@
+declare const MAX_ARRAY_LENGTH: 4294967295;
+
+export = MAX_ARRAY_LENGTH;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/constants/maxArrayLength.js b/backend/node_modules/math-intrinsics/constants/maxArrayLength.js
new file mode 100644
index 0000000..cfc6aff
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/constants/maxArrayLength.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./maxArrayLength')} */
+module.exports = 4294967295; // Math.pow(2, 32) - 1;
diff --git a/backend/node_modules/math-intrinsics/constants/maxSafeInteger.d.ts b/backend/node_modules/math-intrinsics/constants/maxSafeInteger.d.ts
new file mode 100644
index 0000000..fee3f62
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/constants/maxSafeInteger.d.ts
@@ -0,0 +1,3 @@
+declare const MAX_SAFE_INTEGER: 9007199254740991;
+
+export = MAX_SAFE_INTEGER;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/constants/maxSafeInteger.js b/backend/node_modules/math-intrinsics/constants/maxSafeInteger.js
new file mode 100644
index 0000000..b568ad3
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/constants/maxSafeInteger.js
@@ -0,0 +1,5 @@
+'use strict';
+
+/** @type {import('./maxSafeInteger')} */
+// eslint-disable-next-line no-extra-parens
+module.exports = /** @type {import('./maxSafeInteger')} */ (Number.MAX_SAFE_INTEGER) || 9007199254740991; // Math.pow(2, 53) - 1;
diff --git a/backend/node_modules/math-intrinsics/constants/maxValue.d.ts b/backend/node_modules/math-intrinsics/constants/maxValue.d.ts
new file mode 100644
index 0000000..292cb82
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/constants/maxValue.d.ts
@@ -0,0 +1,3 @@
+declare const MAX_VALUE: 1.7976931348623157e+308;
+
+export = MAX_VALUE;
diff --git a/backend/node_modules/math-intrinsics/constants/maxValue.js b/backend/node_modules/math-intrinsics/constants/maxValue.js
new file mode 100644
index 0000000..a2202dc
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/constants/maxValue.js
@@ -0,0 +1,5 @@
+'use strict';
+
+/** @type {import('./maxValue')}  */
+// eslint-disable-next-line no-extra-parens
+module.exports = /** @type {import('./maxValue')}  */ (Number.MAX_VALUE) || 1.7976931348623157e+308;
diff --git a/backend/node_modules/math-intrinsics/floor.d.ts b/backend/node_modules/math-intrinsics/floor.d.ts
new file mode 100644
index 0000000..9265236
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/floor.d.ts
@@ -0,0 +1 @@
+export = Math.floor;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/floor.js b/backend/node_modules/math-intrinsics/floor.js
new file mode 100644
index 0000000..ab0e5d7
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/floor.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./floor')} */
+module.exports = Math.floor;
diff --git a/backend/node_modules/math-intrinsics/isFinite.d.ts b/backend/node_modules/math-intrinsics/isFinite.d.ts
new file mode 100644
index 0000000..6daae33
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/isFinite.d.ts
@@ -0,0 +1,3 @@
+declare function isFinite(x: unknown): x is number | bigint;
+
+export = isFinite;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/isFinite.js b/backend/node_modules/math-intrinsics/isFinite.js
new file mode 100644
index 0000000..b201a5a
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/isFinite.js
@@ -0,0 +1,12 @@
+'use strict';
+
+var $isNaN = require('./isNaN');
+
+/** @type {import('./isFinite')} */
+module.exports = function isFinite(x) {
+	return (typeof x === 'number' || typeof x === 'bigint')
+        && !$isNaN(x)
+        && x !== Infinity
+        && x !== -Infinity;
+};
+
diff --git a/backend/node_modules/math-intrinsics/isInteger.d.ts b/backend/node_modules/math-intrinsics/isInteger.d.ts
new file mode 100644
index 0000000..13935a8
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/isInteger.d.ts
@@ -0,0 +1,3 @@
+declare function isInteger(argument: unknown): argument is number;
+
+export = isInteger;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/isInteger.js b/backend/node_modules/math-intrinsics/isInteger.js
new file mode 100644
index 0000000..4b1b9a5
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/isInteger.js
@@ -0,0 +1,16 @@
+'use strict';
+
+var $abs = require('./abs');
+var $floor = require('./floor');
+
+var $isNaN = require('./isNaN');
+var $isFinite = require('./isFinite');
+
+/** @type {import('./isInteger')} */
+module.exports = function isInteger(argument) {
+	if (typeof argument !== 'number' || $isNaN(argument) || !$isFinite(argument)) {
+		return false;
+	}
+	var absValue = $abs(argument);
+	return $floor(absValue) === absValue;
+};
diff --git a/backend/node_modules/math-intrinsics/isNaN.d.ts b/backend/node_modules/math-intrinsics/isNaN.d.ts
new file mode 100644
index 0000000..c1d4c55
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/isNaN.d.ts
@@ -0,0 +1 @@
+export = Number.isNaN;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/isNaN.js b/backend/node_modules/math-intrinsics/isNaN.js
new file mode 100644
index 0000000..e36475c
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/isNaN.js
@@ -0,0 +1,6 @@
+'use strict';
+
+/** @type {import('./isNaN')} */
+module.exports = Number.isNaN || function isNaN(a) {
+	return a !== a;
+};
diff --git a/backend/node_modules/math-intrinsics/isNegativeZero.d.ts b/backend/node_modules/math-intrinsics/isNegativeZero.d.ts
new file mode 100644
index 0000000..7ad8819
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/isNegativeZero.d.ts
@@ -0,0 +1,3 @@
+declare function isNegativeZero(x: unknown): boolean;
+
+export = isNegativeZero;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/isNegativeZero.js b/backend/node_modules/math-intrinsics/isNegativeZero.js
new file mode 100644
index 0000000..b69adcc
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/isNegativeZero.js
@@ -0,0 +1,6 @@
+'use strict';
+
+/** @type {import('./isNegativeZero')} */
+module.exports = function isNegativeZero(x) {
+	return x === 0 && 1 / x === 1 / -0;
+};
diff --git a/backend/node_modules/math-intrinsics/max.d.ts b/backend/node_modules/math-intrinsics/max.d.ts
new file mode 100644
index 0000000..ad6f43e
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/max.d.ts
@@ -0,0 +1 @@
+export = Math.max;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/max.js b/backend/node_modules/math-intrinsics/max.js
new file mode 100644
index 0000000..edb55df
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/max.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./max')} */
+module.exports = Math.max;
diff --git a/backend/node_modules/math-intrinsics/min.d.ts b/backend/node_modules/math-intrinsics/min.d.ts
new file mode 100644
index 0000000..fd90f2d
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/min.d.ts
@@ -0,0 +1 @@
+export = Math.min;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/min.js b/backend/node_modules/math-intrinsics/min.js
new file mode 100644
index 0000000..5a4a7c7
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/min.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./min')} */
+module.exports = Math.min;
diff --git a/backend/node_modules/math-intrinsics/mod.d.ts b/backend/node_modules/math-intrinsics/mod.d.ts
new file mode 100644
index 0000000..549dbd4
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/mod.d.ts
@@ -0,0 +1,3 @@
+declare function mod(number: number, modulo: number): number;
+
+export = mod;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/mod.js b/backend/node_modules/math-intrinsics/mod.js
new file mode 100644
index 0000000..4a98362
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/mod.js
@@ -0,0 +1,9 @@
+'use strict';
+
+var $floor = require('./floor');
+
+/** @type {import('./mod')} */
+module.exports = function mod(number, modulo) {
+	var remain = number % modulo;
+	return $floor(remain >= 0 ? remain : remain + modulo);
+};
diff --git a/backend/node_modules/math-intrinsics/package.json b/backend/node_modules/math-intrinsics/package.json
new file mode 100644
index 0000000..0676273
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/package.json
@@ -0,0 +1,86 @@
+{
+	"name": "math-intrinsics",
+	"version": "1.1.0",
+	"description": "ES Math-related intrinsics and helpers, robustly cached.",
+	"main": false,
+	"exports": {
+		"./abs": "./abs.js",
+		"./floor": "./floor.js",
+		"./isFinite": "./isFinite.js",
+		"./isInteger": "./isInteger.js",
+		"./isNaN": "./isNaN.js",
+		"./isNegativeZero": "./isNegativeZero.js",
+		"./max": "./max.js",
+		"./min": "./min.js",
+		"./mod": "./mod.js",
+		"./pow": "./pow.js",
+		"./sign": "./sign.js",
+		"./round": "./round.js",
+		"./constants/maxArrayLength": "./constants/maxArrayLength.js",
+		"./constants/maxSafeInteger": "./constants/maxSafeInteger.js",
+		"./constants/maxValue": "./constants/maxValue.js",
+		"./package.json": "./package.json"
+	},
+	"sideEffects": false,
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublishOnly": "safe-publish-latest",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"pretest": "npm run lint",
+		"test": "npm run tests-only",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"posttest": "npx npm@'>= 10.2' audit --production",
+		"prelint": "evalmd README.md && eclint check $(git ls-files | xargs find 2> /dev/null | grep -vE 'node_modules|\\.git' | grep -v dist/)",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "tsc && attw -P",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/es-shims/math-intrinsics.git"
+	},
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/es-shims/math-intrinsics/issues"
+	},
+	"homepage": "https://github.com/es-shims/math-intrinsics#readme",
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.17.1",
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.2",
+		"@types/for-each": "^0.3.3",
+		"@types/object-inspect": "^1.13.0",
+		"@types/tape": "^5.8.0",
+		"auto-changelog": "^2.5.0",
+		"eclint": "^2.8.1",
+		"es-value-fixtures": "^1.5.0",
+		"eslint": "^8.8.0",
+		"evalmd": "^0.0.19",
+		"for-each": "^0.3.3",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"object-inspect": "^1.13.3",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/backend/node_modules/math-intrinsics/pow.d.ts b/backend/node_modules/math-intrinsics/pow.d.ts
new file mode 100644
index 0000000..5873c44
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/pow.d.ts
@@ -0,0 +1 @@
+export = Math.pow;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/pow.js b/backend/node_modules/math-intrinsics/pow.js
new file mode 100644
index 0000000..c0a4103
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/pow.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./pow')} */
+module.exports = Math.pow;
diff --git a/backend/node_modules/math-intrinsics/round.d.ts b/backend/node_modules/math-intrinsics/round.d.ts
new file mode 100644
index 0000000..da1fde3
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/round.d.ts
@@ -0,0 +1 @@
+export = Math.round;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/round.js b/backend/node_modules/math-intrinsics/round.js
new file mode 100644
index 0000000..b792156
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/round.js
@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./round')} */
+module.exports = Math.round;
diff --git a/backend/node_modules/math-intrinsics/sign.d.ts b/backend/node_modules/math-intrinsics/sign.d.ts
new file mode 100644
index 0000000..c49ceca
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/sign.d.ts
@@ -0,0 +1,3 @@
+declare function sign(x: number): number;
+
+export = sign;
\ No newline at end of file
diff --git a/backend/node_modules/math-intrinsics/sign.js b/backend/node_modules/math-intrinsics/sign.js
new file mode 100644
index 0000000..9e5173c
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/sign.js
@@ -0,0 +1,11 @@
+'use strict';
+
+var $isNaN = require('./isNaN');
+
+/** @type {import('./sign')} */
+module.exports = function sign(number) {
+	if ($isNaN(number) || number === 0) {
+		return number;
+	}
+	return number < 0 ? -1 : +1;
+};
diff --git a/backend/node_modules/math-intrinsics/test/index.js b/backend/node_modules/math-intrinsics/test/index.js
new file mode 100644
index 0000000..0f90a5d
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/test/index.js
@@ -0,0 +1,192 @@
+'use strict';
+
+var test = require('tape');
+var v = require('es-value-fixtures');
+var forEach = require('for-each');
+var inspect = require('object-inspect');
+
+var abs = require('../abs');
+var floor = require('../floor');
+var isFinite = require('../isFinite');
+var isInteger = require('../isInteger');
+var isNaN = require('../isNaN');
+var isNegativeZero = require('../isNegativeZero');
+var max = require('../max');
+var min = require('../min');
+var mod = require('../mod');
+var pow = require('../pow');
+var round = require('../round');
+var sign = require('../sign');
+
+var maxArrayLength = require('../constants/maxArrayLength');
+var maxSafeInteger = require('../constants/maxSafeInteger');
+var maxValue = require('../constants/maxValue');
+
+test('abs', function (t) {
+	t.equal(abs(-1), 1, 'abs(-1) === 1');
+	t.equal(abs(+1), 1, 'abs(+1) === 1');
+	t.equal(abs(+0), +0, 'abs(+0) === +0');
+	t.equal(abs(-0), +0, 'abs(-0) === +0');
+
+	t.end();
+});
+
+test('floor', function (t) {
+	t.equal(floor(-1.1), -2, 'floor(-1.1) === -2');
+	t.equal(floor(+1.1), 1, 'floor(+1.1) === 1');
+	t.equal(floor(+0), +0, 'floor(+0) === +0');
+	t.equal(floor(-0), -0, 'floor(-0) === -0');
+	t.equal(floor(-Infinity), -Infinity, 'floor(-Infinity) === -Infinity');
+	t.equal(floor(Number(Infinity)), Number(Infinity), 'floor(+Infinity) === +Infinity');
+	t.equal(floor(NaN), NaN, 'floor(NaN) === NaN');
+	t.equal(floor(0), +0, 'floor(0) === +0');
+	t.equal(floor(-0), -0, 'floor(-0) === -0');
+	t.equal(floor(1), 1, 'floor(1) === 1');
+	t.equal(floor(-1), -1, 'floor(-1) === -1');
+	t.equal(floor(1.1), 1, 'floor(1.1) === 1');
+	t.equal(floor(-1.1), -2, 'floor(-1.1) === -2');
+	t.equal(floor(maxValue), maxValue, 'floor(maxValue) === maxValue');
+	t.equal(floor(maxSafeInteger), maxSafeInteger, 'floor(maxSafeInteger) === maxSafeInteger');
+
+	t.end();
+});
+
+test('isFinite', function (t) {
+	t.equal(isFinite(0), true, 'isFinite(+0) === true');
+	t.equal(isFinite(-0), true, 'isFinite(-0) === true');
+	t.equal(isFinite(1), true, 'isFinite(1) === true');
+	t.equal(isFinite(Infinity), false, 'isFinite(Infinity) === false');
+	t.equal(isFinite(-Infinity), false, 'isFinite(-Infinity) === false');
+	t.equal(isFinite(NaN), false, 'isFinite(NaN) === false');
+
+	forEach(v.nonNumbers, function (nonNumber) {
+		t.equal(isFinite(nonNumber), false, 'isFinite(' + inspect(nonNumber) + ') === false');
+	});
+
+	t.end();
+});
+
+test('isInteger', function (t) {
+	forEach([].concat(
+		// @ts-expect-error TS sucks with concat
+		v.nonNumbers,
+		v.nonIntegerNumbers
+	), function (nonInteger) {
+		t.equal(isInteger(nonInteger), false, 'isInteger(' + inspect(nonInteger) + ') === false');
+	});
+
+	t.end();
+});
+
+test('isNaN', function (t) {
+	forEach([].concat(
+		// @ts-expect-error TS sucks with concat
+		v.nonNumbers,
+		v.infinities,
+		v.zeroes,
+		v.integerNumbers
+	), function (nonNaN) {
+		t.equal(isNaN(nonNaN), false, 'isNaN(' + inspect(nonNaN) + ') === false');
+	});
+
+	t.equal(isNaN(NaN), true, 'isNaN(NaN) === true');
+
+	t.end();
+});
+
+test('isNegativeZero', function (t) {
+	t.equal(isNegativeZero(-0), true, 'isNegativeZero(-0) === true');
+	t.equal(isNegativeZero(+0), false, 'isNegativeZero(+0) === false');
+	t.equal(isNegativeZero(1), false, 'isNegativeZero(1) === false');
+	t.equal(isNegativeZero(-1), false, 'isNegativeZero(-1) === false');
+	t.equal(isNegativeZero(NaN), false, 'isNegativeZero(NaN) === false');
+	t.equal(isNegativeZero(Infinity), false, 'isNegativeZero(Infinity) === false');
+	t.equal(isNegativeZero(-Infinity), false, 'isNegativeZero(-Infinity) === false');
+
+	forEach(v.nonNumbers, function (nonNumber) {
+		t.equal(isNegativeZero(nonNumber), false, 'isNegativeZero(' + inspect(nonNumber) + ') === false');
+	});
+
+	t.end();
+});
+
+test('max', function (t) {
+	t.equal(max(1, 2), 2, 'max(1, 2) === 2');
+	t.equal(max(1, 2, 3), 3, 'max(1, 2, 3) === 3');
+	t.equal(max(1, 2, 3, 4), 4, 'max(1, 2, 3, 4) === 4');
+	t.equal(max(1, 2, 3, 4, 5), 5, 'max(1, 2, 3, 4, 5) === 5');
+	t.equal(max(1, 2, 3, 4, 5, 6), 6, 'max(1, 2, 3, 4, 5, 6) === 6');
+	t.equal(max(1, 2, 3, 4, 5, 6, 7), 7, 'max(1, 2, 3, 4, 5, 6, 7) === 7');
+
+	t.end();
+});
+
+test('min', function (t) {
+	t.equal(min(1, 2), 1, 'min(1, 2) === 1');
+	t.equal(min(1, 2, 3), 1, 'min(1, 2, 3) === 1');
+	t.equal(min(1, 2, 3, 4), 1, 'min(1, 2, 3, 4) === 1');
+	t.equal(min(1, 2, 3, 4, 5), 1, 'min(1, 2, 3, 4, 5) === 1');
+	t.equal(min(1, 2, 3, 4, 5, 6), 1, 'min(1, 2, 3, 4, 5, 6) === 1');
+
+	t.end();
+});
+
+test('mod', function (t) {
+	t.equal(mod(1, 2), 1, 'mod(1, 2) === 1');
+	t.equal(mod(2, 2), 0, 'mod(2, 2) === 0');
+	t.equal(mod(3, 2), 1, 'mod(3, 2) === 1');
+	t.equal(mod(4, 2), 0, 'mod(4, 2) === 0');
+	t.equal(mod(5, 2), 1, 'mod(5, 2) === 1');
+	t.equal(mod(6, 2), 0, 'mod(6, 2) === 0');
+	t.equal(mod(7, 2), 1, 'mod(7, 2) === 1');
+	t.equal(mod(8, 2), 0, 'mod(8, 2) === 0');
+	t.equal(mod(9, 2), 1, 'mod(9, 2) === 1');
+	t.equal(mod(10, 2), 0, 'mod(10, 2) === 0');
+	t.equal(mod(11, 2), 1, 'mod(11, 2) === 1');
+
+	t.end();
+});
+
+test('pow', function (t) {
+	t.equal(pow(2, 2), 4, 'pow(2, 2) === 4');
+	t.equal(pow(2, 3), 8, 'pow(2, 3) === 8');
+	t.equal(pow(2, 4), 16, 'pow(2, 4) === 16');
+	t.equal(pow(2, 5), 32, 'pow(2, 5) === 32');
+	t.equal(pow(2, 6), 64, 'pow(2, 6) === 64');
+	t.equal(pow(2, 7), 128, 'pow(2, 7) === 128');
+	t.equal(pow(2, 8), 256, 'pow(2, 8) === 256');
+	t.equal(pow(2, 9), 512, 'pow(2, 9) === 512');
+	t.equal(pow(2, 10), 1024, 'pow(2, 10) === 1024');
+
+	t.end();
+});
+
+test('round', function (t) {
+	t.equal(round(1.1), 1, 'round(1.1) === 1');
+	t.equal(round(1.5), 2, 'round(1.5) === 2');
+	t.equal(round(1.9), 2, 'round(1.9) === 2');
+
+	t.end();
+});
+
+test('sign', function (t) {
+	t.equal(sign(-1), -1, 'sign(-1) === -1');
+	t.equal(sign(+1), +1, 'sign(+1) === +1');
+	t.equal(sign(+0), +0, 'sign(+0) === +0');
+	t.equal(sign(-0), -0, 'sign(-0) === -0');
+	t.equal(sign(NaN), NaN, 'sign(NaN) === NaN');
+	t.equal(sign(Infinity), +1, 'sign(Infinity) === +1');
+	t.equal(sign(-Infinity), -1, 'sign(-Infinity) === -1');
+	t.equal(sign(maxValue), +1, 'sign(maxValue) === +1');
+	t.equal(sign(maxSafeInteger), +1, 'sign(maxSafeInteger) === +1');
+
+	t.end();
+});
+
+test('constants', function (t) {
+	t.equal(typeof maxArrayLength, 'number', 'typeof maxArrayLength === "number"');
+	t.equal(typeof maxSafeInteger, 'number', 'typeof maxSafeInteger === "number"');
+	t.equal(typeof maxValue, 'number', 'typeof maxValue === "number"');
+
+	t.end();
+});
diff --git a/backend/node_modules/math-intrinsics/tsconfig.json b/backend/node_modules/math-intrinsics/tsconfig.json
new file mode 100644
index 0000000..b131000
--- /dev/null
+++ b/backend/node_modules/math-intrinsics/tsconfig.json
@@ -0,0 +1,3 @@
+{
+	"extends": "@ljharb/tsconfig",
+}
diff --git a/backend/node_modules/media-typer/HISTORY.md b/backend/node_modules/media-typer/HISTORY.md
new file mode 100644
index 0000000..62c2003
--- /dev/null
+++ b/backend/node_modules/media-typer/HISTORY.md
@@ -0,0 +1,22 @@
+0.3.0 / 2014-09-07
+==================
+
+  * Support Node.js 0.6
+  * Throw error when parameter format invalid on parse
+
+0.2.0 / 2014-06-18
+==================
+
+  * Add `typer.format()` to format media types
+
+0.1.0 / 2014-06-17
+==================
+
+  * Accept `req` as argument to `parse`
+  * Accept `res` as argument to `parse`
+  * Parse media type with extra LWS between type and first parameter
+
+0.0.0 / 2014-06-13
+==================
+
+  * Initial implementation
diff --git a/backend/node_modules/media-typer/LICENSE b/backend/node_modules/media-typer/LICENSE
new file mode 100644
index 0000000..b7dce6c
--- /dev/null
+++ b/backend/node_modules/media-typer/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2014 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/media-typer/README.md b/backend/node_modules/media-typer/README.md
new file mode 100644
index 0000000..d8df623
--- /dev/null
+++ b/backend/node_modules/media-typer/README.md
@@ -0,0 +1,81 @@
+# media-typer
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Simple RFC 6838 media type parser
+
+## Installation
+
+```sh
+$ npm install media-typer
+```
+
+## API
+
+```js
+var typer = require('media-typer')
+```
+
+### typer.parse(string)
+
+```js
+var obj = typer.parse('image/svg+xml; charset=utf-8')
+```
+
+Parse a media type string. This will return an object with the following
+properties (examples are shown for the string `'image/svg+xml; charset=utf-8'`):
+
+ - `type`: The type of the media type (always lower case). Example: `'image'`
+
+ - `subtype`: The subtype of the media type (always lower case). Example: `'svg'`
+
+ - `suffix`: The suffix of the media type (always lower case). Example: `'xml'`
+
+ - `parameters`: An object of the parameters in the media type (name of parameter always lower case). Example: `{charset: 'utf-8'}`
+
+### typer.parse(req)
+
+```js
+var obj = typer.parse(req)
+```
+
+Parse the `content-type` header from the given `req`. Short-cut for
+`typer.parse(req.headers['content-type'])`.
+
+### typer.parse(res)
+
+```js
+var obj = typer.parse(res)
+```
+
+Parse the `content-type` header set on the given `res`. Short-cut for
+`typer.parse(res.getHeader('content-type'))`.
+
+### typer.format(obj)
+
+```js
+var obj = typer.format({type: 'image', subtype: 'svg', suffix: 'xml'})
+```
+
+Format an object into a media type string. This will return a string of the
+mime type for the given object. For the properties of the object, see the
+documentation for `typer.parse(string)`.
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/media-typer.svg?style=flat
+[npm-url]: https://npmjs.org/package/media-typer
+[node-version-image]: https://img.shields.io/badge/node.js-%3E%3D_0.6-brightgreen.svg?style=flat
+[node-version-url]: http://nodejs.org/download/
+[travis-image]: https://img.shields.io/travis/jshttp/media-typer.svg?style=flat
+[travis-url]: https://travis-ci.org/jshttp/media-typer
+[coveralls-image]: https://img.shields.io/coveralls/jshttp/media-typer.svg?style=flat
+[coveralls-url]: https://coveralls.io/r/jshttp/media-typer
+[downloads-image]: https://img.shields.io/npm/dm/media-typer.svg?style=flat
+[downloads-url]: https://npmjs.org/package/media-typer
diff --git a/backend/node_modules/media-typer/index.js b/backend/node_modules/media-typer/index.js
new file mode 100644
index 0000000..07f7295
--- /dev/null
+++ b/backend/node_modules/media-typer/index.js
@@ -0,0 +1,270 @@
+/*!
+ * media-typer
+ * Copyright(c) 2014 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+/**
+ * RegExp to match *( ";" parameter ) in RFC 2616 sec 3.7
+ *
+ * parameter     = token "=" ( token | quoted-string )
+ * token         = 1*<any CHAR except CTLs or separators>
+ * separators    = "(" | ")" | "<" | ">" | "@"
+ *               | "," | ";" | ":" | "\" | <">
+ *               | "/" | "[" | "]" | "?" | "="
+ *               | "{" | "}" | SP | HT
+ * quoted-string = ( <"> *(qdtext | quoted-pair ) <"> )
+ * qdtext        = <any TEXT except <">>
+ * quoted-pair   = "\" CHAR
+ * CHAR          = <any US-ASCII character (octets 0 - 127)>
+ * TEXT          = <any OCTET except CTLs, but including LWS>
+ * LWS           = [CRLF] 1*( SP | HT )
+ * CRLF          = CR LF
+ * CR            = <US-ASCII CR, carriage return (13)>
+ * LF            = <US-ASCII LF, linefeed (10)>
+ * SP            = <US-ASCII SP, space (32)>
+ * SHT           = <US-ASCII HT, horizontal-tab (9)>
+ * CTL           = <any US-ASCII control character (octets 0 - 31) and DEL (127)>
+ * OCTET         = <any 8-bit sequence of data>
+ */
+var paramRegExp = /; *([!#$%&'\*\+\-\.0-9A-Z\^_`a-z\|~]+) *= *("(?:[ !\u0023-\u005b\u005d-\u007e\u0080-\u00ff]|\\[\u0020-\u007e])*"|[!#$%&'\*\+\-\.0-9A-Z\^_`a-z\|~]+) */g;
+var textRegExp = /^[\u0020-\u007e\u0080-\u00ff]+$/
+var tokenRegExp = /^[!#$%&'\*\+\-\.0-9A-Z\^_`a-z\|~]+$/
+
+/**
+ * RegExp to match quoted-pair in RFC 2616
+ *
+ * quoted-pair = "\" CHAR
+ * CHAR        = <any US-ASCII character (octets 0 - 127)>
+ */
+var qescRegExp = /\\([\u0000-\u007f])/g;
+
+/**
+ * RegExp to match chars that must be quoted-pair in RFC 2616
+ */
+var quoteRegExp = /([\\"])/g;
+
+/**
+ * RegExp to match type in RFC 6838
+ *
+ * type-name = restricted-name
+ * subtype-name = restricted-name
+ * restricted-name = restricted-name-first *126restricted-name-chars
+ * restricted-name-first  = ALPHA / DIGIT
+ * restricted-name-chars  = ALPHA / DIGIT / "!" / "#" /
+ *                          "$" / "&" / "-" / "^" / "_"
+ * restricted-name-chars =/ "." ; Characters before first dot always
+ *                              ; specify a facet name
+ * restricted-name-chars =/ "+" ; Characters after last plus always
+ *                              ; specify a structured syntax suffix
+ * ALPHA =  %x41-5A / %x61-7A   ; A-Z / a-z
+ * DIGIT =  %x30-39             ; 0-9
+ */
+var subtypeNameRegExp = /^[A-Za-z0-9][A-Za-z0-9!#$&^_.-]{0,126}$/
+var typeNameRegExp = /^[A-Za-z0-9][A-Za-z0-9!#$&^_-]{0,126}$/
+var typeRegExp = /^ *([A-Za-z0-9][A-Za-z0-9!#$&^_-]{0,126})\/([A-Za-z0-9][A-Za-z0-9!#$&^_.+-]{0,126}) *$/;
+
+/**
+ * Module exports.
+ */
+
+exports.format = format
+exports.parse = parse
+
+/**
+ * Format object to media type.
+ *
+ * @param {object} obj
+ * @return {string}
+ * @api public
+ */
+
+function format(obj) {
+  if (!obj || typeof obj !== 'object') {
+    throw new TypeError('argument obj is required')
+  }
+
+  var parameters = obj.parameters
+  var subtype = obj.subtype
+  var suffix = obj.suffix
+  var type = obj.type
+
+  if (!type || !typeNameRegExp.test(type)) {
+    throw new TypeError('invalid type')
+  }
+
+  if (!subtype || !subtypeNameRegExp.test(subtype)) {
+    throw new TypeError('invalid subtype')
+  }
+
+  // format as type/subtype
+  var string = type + '/' + subtype
+
+  // append +suffix
+  if (suffix) {
+    if (!typeNameRegExp.test(suffix)) {
+      throw new TypeError('invalid suffix')
+    }
+
+    string += '+' + suffix
+  }
+
+  // append parameters
+  if (parameters && typeof parameters === 'object') {
+    var param
+    var params = Object.keys(parameters).sort()
+
+    for (var i = 0; i < params.length; i++) {
+      param = params[i]
+
+      if (!tokenRegExp.test(param)) {
+        throw new TypeError('invalid parameter name')
+      }
+
+      string += '; ' + param + '=' + qstring(parameters[param])
+    }
+  }
+
+  return string
+}
+
+/**
+ * Parse media type to object.
+ *
+ * @param {string|object} string
+ * @return {Object}
+ * @api public
+ */
+
+function parse(string) {
+  if (!string) {
+    throw new TypeError('argument string is required')
+  }
+
+  // support req/res-like objects as argument
+  if (typeof string === 'object') {
+    string = getcontenttype(string)
+  }
+
+  if (typeof string !== 'string') {
+    throw new TypeError('argument string is required to be a string')
+  }
+
+  var index = string.indexOf(';')
+  var type = index !== -1
+    ? string.substr(0, index)
+    : string
+
+  var key
+  var match
+  var obj = splitType(type)
+  var params = {}
+  var value
+
+  paramRegExp.lastIndex = index
+
+  while (match = paramRegExp.exec(string)) {
+    if (match.index !== index) {
+      throw new TypeError('invalid parameter format')
+    }
+
+    index += match[0].length
+    key = match[1].toLowerCase()
+    value = match[2]
+
+    if (value[0] === '"') {
+      // remove quotes and escapes
+      value = value
+        .substr(1, value.length - 2)
+        .replace(qescRegExp, '$1')
+    }
+
+    params[key] = value
+  }
+
+  if (index !== -1 && index !== string.length) {
+    throw new TypeError('invalid parameter format')
+  }
+
+  obj.parameters = params
+
+  return obj
+}
+
+/**
+ * Get content-type from req/res objects.
+ *
+ * @param {object}
+ * @return {Object}
+ * @api private
+ */
+
+function getcontenttype(obj) {
+  if (typeof obj.getHeader === 'function') {
+    // res-like
+    return obj.getHeader('content-type')
+  }
+
+  if (typeof obj.headers === 'object') {
+    // req-like
+    return obj.headers && obj.headers['content-type']
+  }
+}
+
+/**
+ * Quote a string if necessary.
+ *
+ * @param {string} val
+ * @return {string}
+ * @api private
+ */
+
+function qstring(val) {
+  var str = String(val)
+
+  // no need to quote tokens
+  if (tokenRegExp.test(str)) {
+    return str
+  }
+
+  if (str.length > 0 && !textRegExp.test(str)) {
+    throw new TypeError('invalid parameter value')
+  }
+
+  return '"' + str.replace(quoteRegExp, '\\$1') + '"'
+}
+
+/**
+ * Simply "type/subtype+siffx" into parts.
+ *
+ * @param {string} string
+ * @return {Object}
+ * @api private
+ */
+
+function splitType(string) {
+  var match = typeRegExp.exec(string.toLowerCase())
+
+  if (!match) {
+    throw new TypeError('invalid media type')
+  }
+
+  var type = match[1]
+  var subtype = match[2]
+  var suffix
+
+  // suffix after last +
+  var index = subtype.lastIndexOf('+')
+  if (index !== -1) {
+    suffix = subtype.substr(index + 1)
+    subtype = subtype.substr(0, index)
+  }
+
+  var obj = {
+    type: type,
+    subtype: subtype,
+    suffix: suffix
+  }
+
+  return obj
+}
diff --git a/backend/node_modules/media-typer/package.json b/backend/node_modules/media-typer/package.json
new file mode 100644
index 0000000..8cf3ebc
--- /dev/null
+++ b/backend/node_modules/media-typer/package.json
@@ -0,0 +1,26 @@
+{
+  "name": "media-typer",
+  "description": "Simple RFC 6838 media type parser and formatter",
+  "version": "0.3.0",
+  "author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
+  "license": "MIT",
+  "repository": "jshttp/media-typer",
+  "devDependencies": {
+    "istanbul": "0.3.2",
+    "mocha": "~1.21.4",
+    "should": "~4.0.4"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "test": "mocha --reporter spec --check-leaks --bail test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/",
+    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/"
+  }
+}
diff --git a/backend/node_modules/memory-pager/.travis.yml b/backend/node_modules/memory-pager/.travis.yml
new file mode 100644
index 0000000..1c4ab31
--- /dev/null
+++ b/backend/node_modules/memory-pager/.travis.yml
@@ -0,0 +1,4 @@
+language: node_js
+node_js:
+  - '4'
+  - '6'
diff --git a/backend/node_modules/memory-pager/LICENSE b/backend/node_modules/memory-pager/LICENSE
new file mode 100644
index 0000000..56fce08
--- /dev/null
+++ b/backend/node_modules/memory-pager/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2017 Mathias Buus
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/memory-pager/README.md b/backend/node_modules/memory-pager/README.md
new file mode 100644
index 0000000..aed1761
--- /dev/null
+++ b/backend/node_modules/memory-pager/README.md
@@ -0,0 +1,65 @@
+# memory-pager
+
+Access memory using small fixed sized buffers instead of allocating a huge buffer.
+Useful if you are implementing sparse data structures (such as large bitfield).
+
+![travis](https://travis-ci.org/mafintosh/memory-pager.svg?branch=master)
+
+```
+npm install memory-pager
+```
+
+## Usage
+
+``` js
+var pager = require('paged-memory')
+
+var pages = pager(1024) // use 1kb per page
+
+var page = pages.get(10) // get page #10
+
+console.log(page.offset) // 10240
+console.log(page.buffer) // a blank 1kb buffer
+```
+
+## API
+
+#### `var pages = pager(pageSize)`
+
+Create a new pager. `pageSize` defaults to `1024`.
+
+#### `var page = pages.get(pageNumber, [noAllocate])`
+
+Get a page. The page will be allocated at first access.
+
+Optionally you can set the `noAllocate` flag which will make the
+method return undefined if no page has been allocated already
+
+A page looks like this
+
+``` js
+{
+  offset: byteOffset,
+  buffer: bufferWithPageSize
+}
+```
+
+#### `pages.set(pageNumber, buffer)`
+
+Explicitly set the buffer for a page.
+
+#### `pages.updated(page)`
+
+Mark a page as updated.
+
+#### `pages.lastUpdate()`
+
+Get the last page that was updated.
+
+#### `var buf = pages.toBuffer()`
+
+Concat all pages allocated pages into a single buffer
+
+## License
+
+MIT
diff --git a/backend/node_modules/memory-pager/index.js b/backend/node_modules/memory-pager/index.js
new file mode 100644
index 0000000..687f346
--- /dev/null
+++ b/backend/node_modules/memory-pager/index.js
@@ -0,0 +1,160 @@
+module.exports = Pager
+
+function Pager (pageSize, opts) {
+  if (!(this instanceof Pager)) return new Pager(pageSize, opts)
+
+  this.length = 0
+  this.updates = []
+  this.path = new Uint16Array(4)
+  this.pages = new Array(32768)
+  this.maxPages = this.pages.length
+  this.level = 0
+  this.pageSize = pageSize || 1024
+  this.deduplicate = opts ? opts.deduplicate : null
+  this.zeros = this.deduplicate ? alloc(this.deduplicate.length) : null
+}
+
+Pager.prototype.updated = function (page) {
+  while (this.deduplicate && page.buffer[page.deduplicate] === this.deduplicate[page.deduplicate]) {
+    page.deduplicate++
+    if (page.deduplicate === this.deduplicate.length) {
+      page.deduplicate = 0
+      if (page.buffer.equals && page.buffer.equals(this.deduplicate)) page.buffer = this.deduplicate
+      break
+    }
+  }
+  if (page.updated || !this.updates) return
+  page.updated = true
+  this.updates.push(page)
+}
+
+Pager.prototype.lastUpdate = function () {
+  if (!this.updates || !this.updates.length) return null
+  var page = this.updates.pop()
+  page.updated = false
+  return page
+}
+
+Pager.prototype._array = function (i, noAllocate) {
+  if (i >= this.maxPages) {
+    if (noAllocate) return
+    grow(this, i)
+  }
+
+  factor(i, this.path)
+
+  var arr = this.pages
+
+  for (var j = this.level; j > 0; j--) {
+    var p = this.path[j]
+    var next = arr[p]
+
+    if (!next) {
+      if (noAllocate) return
+      next = arr[p] = new Array(32768)
+    }
+
+    arr = next
+  }
+
+  return arr
+}
+
+Pager.prototype.get = function (i, noAllocate) {
+  var arr = this._array(i, noAllocate)
+  var first = this.path[0]
+  var page = arr && arr[first]
+
+  if (!page && !noAllocate) {
+    page = arr[first] = new Page(i, alloc(this.pageSize))
+    if (i >= this.length) this.length = i + 1
+  }
+
+  if (page && page.buffer === this.deduplicate && this.deduplicate && !noAllocate) {
+    page.buffer = copy(page.buffer)
+    page.deduplicate = 0
+  }
+
+  return page
+}
+
+Pager.prototype.set = function (i, buf) {
+  var arr = this._array(i, false)
+  var first = this.path[0]
+
+  if (i >= this.length) this.length = i + 1
+
+  if (!buf || (this.zeros && buf.equals && buf.equals(this.zeros))) {
+    arr[first] = undefined
+    return
+  }
+
+  if (this.deduplicate && buf.equals && buf.equals(this.deduplicate)) {
+    buf = this.deduplicate
+  }
+
+  var page = arr[first]
+  var b = truncate(buf, this.pageSize)
+
+  if (page) page.buffer = b
+  else arr[first] = new Page(i, b)
+}
+
+Pager.prototype.toBuffer = function () {
+  var list = new Array(this.length)
+  var empty = alloc(this.pageSize)
+  var ptr = 0
+
+  while (ptr < list.length) {
+    var arr = this._array(ptr, true)
+    for (var i = 0; i < 32768 && ptr < list.length; i++) {
+      list[ptr++] = (arr && arr[i]) ? arr[i].buffer : empty
+    }
+  }
+
+  return Buffer.concat(list)
+}
+
+function grow (pager, index) {
+  while (pager.maxPages < index) {
+    var old = pager.pages
+    pager.pages = new Array(32768)
+    pager.pages[0] = old
+    pager.level++
+    pager.maxPages *= 32768
+  }
+}
+
+function truncate (buf, len) {
+  if (buf.length === len) return buf
+  if (buf.length > len) return buf.slice(0, len)
+  var cpy = alloc(len)
+  buf.copy(cpy)
+  return cpy
+}
+
+function alloc (size) {
+  if (Buffer.alloc) return Buffer.alloc(size)
+  var buf = new Buffer(size)
+  buf.fill(0)
+  return buf
+}
+
+function copy (buf) {
+  var cpy = Buffer.allocUnsafe ? Buffer.allocUnsafe(buf.length) : new Buffer(buf.length)
+  buf.copy(cpy)
+  return cpy
+}
+
+function Page (i, buf) {
+  this.offset = i * buf.length
+  this.buffer = buf
+  this.updated = false
+  this.deduplicate = 0
+}
+
+function factor (n, out) {
+  n = (n - (out[0] = (n & 32767))) / 32768
+  n = (n - (out[1] = (n & 32767))) / 32768
+  out[3] = ((n - (out[2] = (n & 32767))) / 32768) & 32767
+}
diff --git a/backend/node_modules/memory-pager/package.json b/backend/node_modules/memory-pager/package.json
new file mode 100644
index 0000000..f4847e8
--- /dev/null
+++ b/backend/node_modules/memory-pager/package.json
@@ -0,0 +1,24 @@
+{
+  "name": "memory-pager",
+  "version": "1.5.0",
+  "description": "Access memory using small fixed sized buffers",
+  "main": "index.js",
+  "dependencies": {},
+  "devDependencies": {
+    "standard": "^9.0.0",
+    "tape": "^4.6.3"
+  },
+  "scripts": {
+    "test": "standard && tape test.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/mafintosh/memory-pager.git"
+  },
+  "author": "Mathias Buus (@mafintosh)",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/mafintosh/memory-pager/issues"
+  },
+  "homepage": "https://github.com/mafintosh/memory-pager"
+}
diff --git a/backend/node_modules/memory-pager/test.js b/backend/node_modules/memory-pager/test.js
new file mode 100644
index 0000000..1638210
--- /dev/null
+++ b/backend/node_modules/memory-pager/test.js
@@ -0,0 +1,80 @@
+var tape = require('tape')
+var pager = require('./')
+
+tape('get page', function (t) {
+  var pages = pager(1024)
+
+  var page = pages.get(0)
+
+  t.same(page.offset, 0)
+  t.same(page.buffer, Buffer.alloc(1024))
+  t.end()
+})
+
+tape('get page twice', function (t) {
+  var pages = pager(1024)
+  t.same(pages.length, 0)
+
+  var page = pages.get(0)
+
+  t.same(page.offset, 0)
+  t.same(page.buffer, Buffer.alloc(1024))
+  t.same(pages.length, 1)
+
+  var other = pages.get(0)
+
+  t.same(other, page)
+  t.end()
+})
+
+tape('get no mutable page', function (t) {
+  var pages = pager(1024)
+
+  t.ok(!pages.get(141, true))
+  t.ok(pages.get(141))
+  t.ok(pages.get(141, true))
+
+  t.end()
+})
+
+tape('get far out page', function (t) {
+  var pages = pager(1024)
+
+  var page = pages.get(1000000)
+
+  t.same(page.offset, 1000000 * 1024)
+  t.same(page.buffer, Buffer.alloc(1024))
+  t.same(pages.length, 1000000 + 1)
+
+  var other = pages.get(1)
+
+  t.same(other.offset, 1024)
+  t.same(other.buffer, Buffer.alloc(1024))
+  t.same(pages.length, 1000000 + 1)
+  t.ok(other !== page)
+
+  t.end()
+})
+
+tape('updates', function (t) {
+  var pages = pager(1024)
+
+  t.same(pages.lastUpdate(), null)
+
+  var page = pages.get(10)
+
+  page.buffer[42] = 1
+  pages.updated(page)
+
+  t.same(pages.lastUpdate(), page)
+  t.same(pages.lastUpdate(), null)
+
+  page.buffer[42] = 2
+  pages.updated(page)
+  pages.updated(page)
+
+  t.same(pages.lastUpdate(), page)
+  t.same(pages.lastUpdate(), null)
+
+  t.end()
+})
diff --git a/backend/node_modules/merge-descriptors/HISTORY.md b/backend/node_modules/merge-descriptors/HISTORY.md
new file mode 100644
index 0000000..486771f
--- /dev/null
+++ b/backend/node_modules/merge-descriptors/HISTORY.md
@@ -0,0 +1,21 @@
+1.0.1 / 2016-01-17
+==================
+
+  * perf: enable strict mode
+
+1.0.0 / 2015-03-01
+==================
+
+  * Add option to only add new descriptors
+  * Add simple argument validation
+  * Add jsdoc to source file
+
+0.0.2 / 2013-12-14
+==================
+
+  * Move repository to `component` organization
+
+0.0.1 / 2013-10-29
+==================
+
+  * Initial release
diff --git a/backend/node_modules/merge-descriptors/LICENSE b/backend/node_modules/merge-descriptors/LICENSE
new file mode 100644
index 0000000..274bfd8
--- /dev/null
+++ b/backend/node_modules/merge-descriptors/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2013 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2015 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/merge-descriptors/README.md b/backend/node_modules/merge-descriptors/README.md
new file mode 100644
index 0000000..3403f4a
--- /dev/null
+++ b/backend/node_modules/merge-descriptors/README.md
@@ -0,0 +1,49 @@
+# merge-descriptors
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Merge objects using descriptors.
+
+```js
+var thing = {
+  get name() {
+    return 'jon'
+  }
+}
+
+var animal = {
+
+}
+
+merge(animal, thing)
+
+animal.name === 'jon'
+```
+
+## API
+
+### merge(destination, source)
+
+Redefines `destination`'s descriptors with `source`'s. The return value is the
+`destination` object.
+
+### merge(destination, source, false)
+
+Defines `source`'s descriptors on `destination` if `destination` does not have
+a descriptor by the same name. The return value is the `destination` object.
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/merge-descriptors.svg
+[npm-url]: https://npmjs.org/package/merge-descriptors
+[travis-image]: https://img.shields.io/travis/component/merge-descriptors/master.svg
+[travis-url]: https://travis-ci.org/component/merge-descriptors
+[coveralls-image]: https://img.shields.io/coveralls/component/merge-descriptors/master.svg
+[coveralls-url]: https://coveralls.io/r/component/merge-descriptors?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/merge-descriptors.svg
+[downloads-url]: https://npmjs.org/package/merge-descriptors
diff --git a/backend/node_modules/merge-descriptors/index.js b/backend/node_modules/merge-descriptors/index.js
new file mode 100644
index 0000000..f22ebab
--- /dev/null
+++ b/backend/node_modules/merge-descriptors/index.js
@@ -0,0 +1,60 @@
+/*!
+ * merge-descriptors
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = merge
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var hasOwnProperty = Object.prototype.hasOwnProperty
+
+/**
+ * Merge the property descriptors of `src` into `dest`
+ *
+ * @param {object} dest Object to add descriptors to
+ * @param {object} src Object to clone descriptors from
+ * @param {boolean} [redefine=true] Redefine `dest` properties with `src` properties
+ * @returns {object} Reference to dest
+ * @public
+ */
+
+function merge (dest, src, redefine) {
+  if (!dest) {
+    throw new TypeError('argument dest is required')
+  }
+
+  if (!src) {
+    throw new TypeError('argument src is required')
+  }
+
+  if (redefine === undefined) {
+    // Default to true
+    redefine = true
+  }
+
+  Object.getOwnPropertyNames(src).forEach(function forEachOwnPropertyName (name) {
+    if (!redefine && hasOwnProperty.call(dest, name)) {
+      // Skip descriptor
+      return
+    }
+
+    // Copy descriptor
+    var descriptor = Object.getOwnPropertyDescriptor(src, name)
+    Object.defineProperty(dest, name, descriptor)
+  })
+
+  return dest
+}
diff --git a/backend/node_modules/merge-descriptors/package.json b/backend/node_modules/merge-descriptors/package.json
new file mode 100644
index 0000000..aa9af0a
--- /dev/null
+++ b/backend/node_modules/merge-descriptors/package.json
@@ -0,0 +1,39 @@
+{
+  "name": "merge-descriptors",
+  "description": "Merge objects using descriptors",
+  "version": "1.0.3",
+  "author": {
+    "name": "Jonathan Ong",
+    "email": "me@jongleberry.com",
+    "url": "http://jongleberry.com",
+    "twitter": "https://twitter.com/jongleberry"
+  },
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Mike Grabowski <grabbou@gmail.com>"
+  ],
+  "license": "MIT",
+  "repository": "sindresorhus/merge-descriptors",
+  "funding": "https://github.com/sponsors/sindresorhus",
+  "devDependencies": {
+    "eslint": "5.9.0",
+    "eslint-config-standard": "12.0.0",
+    "eslint-plugin-import": "2.14.0",
+    "eslint-plugin-node": "7.0.1",
+    "eslint-plugin-promise": "4.0.1",
+    "eslint-plugin-standard": "4.0.0",
+    "mocha": "5.2.0",
+    "nyc": "13.1.0"
+  },
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "README.md",
+    "index.js"
+  ],
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha test/",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
+  }
+}
diff --git a/backend/node_modules/methods/HISTORY.md b/backend/node_modules/methods/HISTORY.md
new file mode 100644
index 0000000..c0ecf07
--- /dev/null
+++ b/backend/node_modules/methods/HISTORY.md
@@ -0,0 +1,29 @@
+1.1.2 / 2016-01-17
+==================
+
+  * perf: enable strict mode
+
+1.1.1 / 2014-12-30
+==================
+
+  * Improve `browserify` support
+
+1.1.0 / 2014-07-05
+==================
+
+  * Add `CONNECT` method
+ 
+1.0.1 / 2014-06-02
+==================
+
+  * Fix module to work with harmony transform
+
+1.0.0 / 2014-05-08
+==================
+
+  * Add `PURGE` method
+
+0.1.0 / 2013-10-28
+==================
+
+  * Add `http.METHODS` support
diff --git a/backend/node_modules/methods/LICENSE b/backend/node_modules/methods/LICENSE
new file mode 100644
index 0000000..220dc1a
--- /dev/null
+++ b/backend/node_modules/methods/LICENSE
@@ -0,0 +1,24 @@
+(The MIT License)
+
+Copyright (c) 2013-2014 TJ Holowaychuk <tj@vision-media.ca>
+Copyright (c) 2015-2016 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
diff --git a/backend/node_modules/methods/README.md b/backend/node_modules/methods/README.md
new file mode 100644
index 0000000..672a32b
--- /dev/null
+++ b/backend/node_modules/methods/README.md
@@ -0,0 +1,51 @@
+# Methods
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+HTTP verbs that Node.js core's HTTP parser supports.
+
+This module provides an export that is just like `http.METHODS` from Node.js core,
+with the following differences:
+
+  * All method names are lower-cased.
+  * Contains a fallback list of methods for Node.js versions that do not have a
+    `http.METHODS` export (0.10 and lower).
+  * Provides the fallback list when using tools like `browserify` without pulling
+    in the `http` shim module.
+
+## Install
+
+```bash
+$ npm install methods
+```
+
+## API
+
+```js
+var methods = require('methods')
+```
+
+### methods
+
+This is an array of lower-cased method names that Node.js supports. If Node.js
+provides the `http.METHODS` export, then this is the same array lower-cased,
+otherwise it is a snapshot of the verbs from Node.js 0.10.
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/methods.svg?style=flat
+[npm-url]: https://npmjs.org/package/methods
+[node-version-image]: https://img.shields.io/node/v/methods.svg?style=flat
+[node-version-url]: https://nodejs.org/en/download/
+[travis-image]: https://img.shields.io/travis/jshttp/methods.svg?style=flat
+[travis-url]: https://travis-ci.org/jshttp/methods
+[coveralls-image]: https://img.shields.io/coveralls/jshttp/methods.svg?style=flat
+[coveralls-url]: https://coveralls.io/r/jshttp/methods?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/methods.svg?style=flat
+[downloads-url]: https://npmjs.org/package/methods
diff --git a/backend/node_modules/methods/index.js b/backend/node_modules/methods/index.js
new file mode 100644
index 0000000..667a50b
--- /dev/null
+++ b/backend/node_modules/methods/index.js
@@ -0,0 +1,69 @@
+/*!
+ * methods
+ * Copyright(c) 2013-2014 TJ Holowaychuk
+ * Copyright(c) 2015-2016 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var http = require('http');
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = getCurrentNodeMethods() || getBasicNodeMethods();
+
+/**
+ * Get the current Node.js methods.
+ * @private
+ */
+
+function getCurrentNodeMethods() {
+  return http.METHODS && http.METHODS.map(function lowerCaseMethod(method) {
+    return method.toLowerCase();
+  });
+}
+
+/**
+ * Get the "basic" Node.js methods, a snapshot from Node.js 0.10.
+ * @private
+ */
+
+function getBasicNodeMethods() {
+  return [
+    'get',
+    'post',
+    'put',
+    'head',
+    'delete',
+    'options',
+    'trace',
+    'copy',
+    'lock',
+    'mkcol',
+    'move',
+    'purge',
+    'propfind',
+    'proppatch',
+    'unlock',
+    'report',
+    'mkactivity',
+    'checkout',
+    'merge',
+    'm-search',
+    'notify',
+    'subscribe',
+    'unsubscribe',
+    'patch',
+    'search',
+    'connect'
+  ];
+}
diff --git a/backend/node_modules/methods/package.json b/backend/node_modules/methods/package.json
new file mode 100644
index 0000000..c4ce6f0
--- /dev/null
+++ b/backend/node_modules/methods/package.json
@@ -0,0 +1,36 @@
+{
+  "name": "methods",
+  "description": "HTTP methods that node supports",
+  "version": "1.1.2",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)",
+    "TJ Holowaychuk <tj@vision-media.ca> (http://tjholowaychuk.com)"
+  ],
+  "license": "MIT",
+  "repository": "jshttp/methods",
+  "devDependencies": {
+    "istanbul": "0.4.1",
+    "mocha": "1.21.5"
+  },
+  "files": [
+    "index.js",
+    "HISTORY.md",
+    "LICENSE"
+  ],
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/",
+    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/"
+  },
+  "browser": {
+    "http": false
+  },
+  "keywords": [
+    "http",
+    "methods"
+  ]
+}
diff --git a/backend/node_modules/mime-db/HISTORY.md b/backend/node_modules/mime-db/HISTORY.md
new file mode 100644
index 0000000..7436f64
--- /dev/null
+++ b/backend/node_modules/mime-db/HISTORY.md
@@ -0,0 +1,507 @@
+1.52.0 / 2022-02-21
+===================
+
+  * Add extensions from IANA for more `image/*` types
+  * Add extension `.asc` to `application/pgp-keys`
+  * Add extensions to various XML types
+  * Add new upstream MIME types
+
+1.51.0 / 2021-11-08
+===================
+
+  * Add new upstream MIME types
+  * Mark `image/vnd.microsoft.icon` as compressible
+  * Mark `image/vnd.ms-dds` as compressible
+
+1.50.0 / 2021-09-15
+===================
+
+  * Add deprecated iWorks mime types and extensions
+  * Add new upstream MIME types
+
+1.49.0 / 2021-07-26
+===================
+
+  * Add extension `.trig` to `application/trig`
+  * Add new upstream MIME types
+
+1.48.0 / 2021-05-30
+===================
+
+  * Add extension `.mvt` to `application/vnd.mapbox-vector-tile`
+  * Add new upstream MIME types
+  * Mark `text/yaml` as compressible
+
+1.47.0 / 2021-04-01
+===================
+
+  * Add new upstream MIME types
+  * Remove ambigious extensions from IANA for `application/*+xml` types
+  * Update primary extension to `.es` for `application/ecmascript`
+
+1.46.0 / 2021-02-13
+===================
+
+  * Add extension `.amr` to `audio/amr`
+  * Add extension `.m4s` to `video/iso.segment`
+  * Add extension `.opus` to `audio/ogg`
+  * Add new upstream MIME types
+
+1.45.0 / 2020-09-22
+===================
+
+  * Add `application/ubjson` with extension `.ubj`
+  * Add `image/avif` with extension `.avif`
+  * Add `image/ktx2` with extension `.ktx2`
+  * Add extension `.dbf` to `application/vnd.dbf`
+  * Add extension `.rar` to `application/vnd.rar`
+  * Add extension `.td` to `application/urc-targetdesc+xml`
+  * Add new upstream MIME types
+  * Fix extension of `application/vnd.apple.keynote` to be `.key`
+
+1.44.0 / 2020-04-22
+===================
+
+  * Add charsets from IANA
+  * Add extension `.cjs` to `application/node`
+  * Add new upstream MIME types
+
+1.43.0 / 2020-01-05
+===================
+
+  * Add `application/x-keepass2` with extension `.kdbx`
+  * Add extension `.mxmf` to `audio/mobile-xmf`
+  * Add extensions from IANA for `application/*+xml` types
+  * Add new upstream MIME types
+
+1.42.0 / 2019-09-25
+===================
+
+  * Add `image/vnd.ms-dds` with extension `.dds`
+  * Add new upstream MIME types
+  * Remove compressible from `multipart/mixed`
+
+1.41.0 / 2019-08-30
+===================
+
+  * Add new upstream MIME types
+  * Add `application/toml` with extension `.toml`
+  * Mark `font/ttf` as compressible
+
+1.40.0 / 2019-04-20
+===================
+
+  * Add extensions from IANA for `model/*` types
+  * Add `text/mdx` with extension `.mdx`
+
+1.39.0 / 2019-04-04
+===================
+
+  * Add extensions `.siv` and `.sieve` to `application/sieve`
+  * Add new upstream MIME types
+
+1.38.0 / 2019-02-04
+===================
+
+  * Add extension `.nq` to `application/n-quads`
+  * Add extension `.nt` to `application/n-triples`
+  * Add new upstream MIME types
+  * Mark `text/less` as compressible
+
+1.37.0 / 2018-10-19
+===================
+
+  * Add extensions to HEIC image types
+  * Add new upstream MIME types
+
+1.36.0 / 2018-08-20
+===================
+
+  * Add Apple file extensions from IANA
+  * Add extensions from IANA for `image/*` types
+  * Add new upstream MIME types
+
+1.35.0 / 2018-07-15
+===================
+
+  * Add extension `.owl` to `application/rdf+xml`
+  * Add new upstream MIME types
+    - Removes extension `.woff` from `application/font-woff`
+
+1.34.0 / 2018-06-03
+===================
+
+  * Add extension `.csl` to `application/vnd.citationstyles.style+xml`
+  * Add extension `.es` to `application/ecmascript`
+  * Add new upstream MIME types
+  * Add `UTF-8` as default charset for `text/turtle`
+  * Mark all XML-derived types as compressible
+
+1.33.0 / 2018-02-15
+===================
+
+  * Add extensions from IANA for `message/*` types
+  * Add new upstream MIME types
+  * Fix some incorrect OOXML types
+  * Remove `application/font-woff2`
+
+1.32.0 / 2017-11-29
+===================
+
+  * Add new upstream MIME types
+  * Update `text/hjson` to registered `application/hjson`
+  * Add `text/shex` with extension `.shex`
+
+1.31.0 / 2017-10-25
+===================
+
+  * Add `application/raml+yaml` with extension `.raml`
+  * Add `application/wasm` with extension `.wasm`
+  * Add new `font` type from IANA
+  * Add new upstream font extensions
+  * Add new upstream MIME types
+  * Add extensions for JPEG-2000 images
+
+1.30.0 / 2017-08-27
+===================
+
+  * Add `application/vnd.ms-outlook`
+  * Add `application/x-arj`
+  * Add extension `.mjs` to `application/javascript`
+  * Add glTF types and extensions
+  * Add new upstream MIME types
+  * Add `text/x-org`
+  * Add VirtualBox MIME types
+  * Fix `source` records for `video/*` types that are IANA
+  * Update `font/opentype` to registered `font/otf`
+
+1.29.0 / 2017-07-10
+===================
+
+  * Add `application/fido.trusted-apps+json`
+  * Add extension `.wadl` to `application/vnd.sun.wadl+xml`
+  * Add new upstream MIME types
+  * Add `UTF-8` as default charset for `text/css`
+
+1.28.0 / 2017-05-14
+===================
+
+  * Add new upstream MIME types
+  * Add extension `.gz` to `application/gzip`
+  * Update extensions `.md` and `.markdown` to be `text/markdown`
+
+1.27.0 / 2017-03-16
+===================
+
+  * Add new upstream MIME types
+  * Add `image/apng` with extension `.apng`
+
+1.26.0 / 2017-01-14
+===================
+
+  * Add new upstream MIME types
+  * Add extension `.geojson` to `application/geo+json`
+
+1.25.0 / 2016-11-11
+===================
+
+  * Add new upstream MIME types
+
+1.24.0 / 2016-09-18
+===================
+
+  * Add `audio/mp3`
+  * Add new upstream MIME types
+
+1.23.0 / 2016-05-01
+===================
+
+  * Add new upstream MIME types
+  * Add extension `.3gpp` to `audio/3gpp`
+
+1.22.0 / 2016-02-15
+===================
+
+  * Add `text/slim`
+  * Add extension `.rng` to `application/xml`
+  * Add new upstream MIME types
+  * Fix extension of `application/dash+xml` to be `.mpd`
+  * Update primary extension to `.m4a` for `audio/mp4`
+
+1.21.0 / 2016-01-06
+===================
+
+  * Add Google document types
+  * Add new upstream MIME types
+
+1.20.0 / 2015-11-10
+===================
+
+  * Add `text/x-suse-ymp`
+  * Add new upstream MIME types
+
+1.19.0 / 2015-09-17
+===================
+
+  * Add `application/vnd.apple.pkpass`
+  * Add new upstream MIME types
+
+1.18.0 / 2015-09-03
+===================
+
+  * Add new upstream MIME types
+
+1.17.0 / 2015-08-13
+===================
+
+  * Add `application/x-msdos-program`
+  * Add `audio/g711-0`
+  * Add `image/vnd.mozilla.apng`
+  * Add extension `.exe` to `application/x-msdos-program`
+
+1.16.0 / 2015-07-29
+===================
+
+  * Add `application/vnd.uri-map`
+
+1.15.0 / 2015-07-13
+===================
+
+  * Add `application/x-httpd-php`
+
+1.14.0 / 2015-06-25
+===================
+
+  * Add `application/scim+json`
+  * Add `application/vnd.3gpp.ussd+xml`
+  * Add `application/vnd.biopax.rdf+xml`
+  * Add `text/x-processing`
+
+1.13.0 / 2015-06-07
+===================
+
+  * Add nginx as a source
+  * Add `application/x-cocoa`
+  * Add `application/x-java-archive-diff`
+  * Add `application/x-makeself`
+  * Add `application/x-perl`
+  * Add `application/x-pilot`
+  * Add `application/x-redhat-package-manager`
+  * Add `application/x-sea`
+  * Add `audio/x-m4a`
+  * Add `audio/x-realaudio`
+  * Add `image/x-jng`
+  * Add `text/mathml`
+
+1.12.0 / 2015-06-05
+===================
+
+  * Add `application/bdoc`
+  * Add `application/vnd.hyperdrive+json`
+  * Add `application/x-bdoc`
+  * Add extension `.rtf` to `text/rtf`
+
+1.11.0 / 2015-05-31
+===================
+
+  * Add `audio/wav`
+  * Add `audio/wave`
+  * Add extension `.litcoffee` to `text/coffeescript`
+  * Add extension `.sfd-hdstx` to `application/vnd.hydrostatix.sof-data`
+  * Add extension `.n-gage` to `application/vnd.nokia.n-gage.symbian.install`
+
+1.10.0 / 2015-05-19
+===================
+
+  * Add `application/vnd.balsamiq.bmpr`
+  * Add `application/vnd.microsoft.portable-executable`
+  * Add `application/x-ns-proxy-autoconfig`
+
+1.9.1 / 2015-04-19
+==================
+
+  * Remove `.json` extension from `application/manifest+json`
+    - This is causing bugs downstream
+
+1.9.0 / 2015-04-19
+==================
+
+  * Add `application/manifest+json`
+  * Add `application/vnd.micro+json`
+  * Add `image/vnd.zbrush.pcx`
+  * Add `image/x-ms-bmp`
+
+1.8.0 / 2015-03-13
+==================
+
+  * Add `application/vnd.citationstyles.style+xml`
+  * Add `application/vnd.fastcopy-disk-image`
+  * Add `application/vnd.gov.sk.xmldatacontainer+xml`
+  * Add extension `.jsonld` to `application/ld+json`
+
+1.7.0 / 2015-02-08
+==================
+
+  * Add `application/vnd.gerber`
+  * Add `application/vnd.msa-disk-image`
+
+1.6.1 / 2015-02-05
+==================
+
+  * Community extensions ownership transferred from `node-mime`
+
+1.6.0 / 2015-01-29
+==================
+
+  * Add `application/jose`
+  * Add `application/jose+json`
+  * Add `application/json-seq`
+  * Add `application/jwk+json`
+  * Add `application/jwk-set+json`
+  * Add `application/jwt`
+  * Add `application/rdap+json`
+  * Add `application/vnd.gov.sk.e-form+xml`
+  * Add `application/vnd.ims.imsccv1p3`
+
+1.5.0 / 2014-12-30
+==================
+
+  * Add `application/vnd.oracle.resource+json`
+  * Fix various invalid MIME type entries
+    - `application/mbox+xml`
+    - `application/oscp-response`
+    - `application/vwg-multiplexed`
+    - `audio/g721`
+
+1.4.0 / 2014-12-21
+==================
+
+  * Add `application/vnd.ims.imsccv1p2`
+  * Fix various invalid MIME type entries
+    - `application/vnd-acucobol`
+    - `application/vnd-curl`
+    - `application/vnd-dart`
+    - `application/vnd-dxr`
+    - `application/vnd-fdf`
+    - `application/vnd-mif`
+    - `application/vnd-sema`
+    - `application/vnd-wap-wmlc`
+    - `application/vnd.adobe.flash-movie`
+    - `application/vnd.dece-zip`
+    - `application/vnd.dvb_service`
+    - `application/vnd.micrografx-igx`
+    - `application/vnd.sealed-doc`
+    - `application/vnd.sealed-eml`
+    - `application/vnd.sealed-mht`
+    - `application/vnd.sealed-ppt`
+    - `application/vnd.sealed-tiff`
+    - `application/vnd.sealed-xls`
+    - `application/vnd.sealedmedia.softseal-html`
+    - `application/vnd.sealedmedia.softseal-pdf`
+    - `application/vnd.wap-slc`
+    - `application/vnd.wap-wbxml`
+    - `audio/vnd.sealedmedia.softseal-mpeg`
+    - `image/vnd-djvu`
+    - `image/vnd-svf`
+    - `image/vnd-wap-wbmp`
+    - `image/vnd.sealed-png`
+    - `image/vnd.sealedmedia.softseal-gif`
+    - `image/vnd.sealedmedia.softseal-jpg`
+    - `model/vnd-dwf`
+    - `model/vnd.parasolid.transmit-binary`
+    - `model/vnd.parasolid.transmit-text`
+    - `text/vnd-a`
+    - `text/vnd-curl`
+    - `text/vnd.wap-wml`
+  * Remove example template MIME types
+    - `application/example`
+    - `audio/example`
+    - `image/example`
+    - `message/example`
+    - `model/example`
+    - `multipart/example`
+    - `text/example`
+    - `video/example`
+
+1.3.1 / 2014-12-16
+==================
+
+  * Fix missing extensions
+    - `application/json5`
+    - `text/hjson`
+
+1.3.0 / 2014-12-07
+==================
+
+  * Add `application/a2l`
+  * Add `application/aml`
+  * Add `application/atfx`
+  * Add `application/atxml`
+  * Add `application/cdfx+xml`
+  * Add `application/dii`
+  * Add `application/json5`
+  * Add `application/lxf`
+  * Add `application/mf4`
+  * Add `application/vnd.apache.thrift.compact`
+  * Add `application/vnd.apache.thrift.json`
+  * Add `application/vnd.coffeescript`
+  * Add `application/vnd.enphase.envoy`
+  * Add `application/vnd.ims.imsccv1p1`
+  * Add `text/csv-schema`
+  * Add `text/hjson`
+  * Add `text/markdown`
+  * Add `text/yaml`
+
+1.2.0 / 2014-11-09
+==================
+
+  * Add `application/cea`
+  * Add `application/dit`
+  * Add `application/vnd.gov.sk.e-form+zip`
+  * Add `application/vnd.tmd.mediaflex.api+xml`
+  * Type `application/epub+zip` is now IANA-registered
+
+1.1.2 / 2014-10-23
+==================
+
+  * Rebuild database for `application/x-www-form-urlencoded` change
+
+1.1.1 / 2014-10-20
+==================
+
+  * Mark `application/x-www-form-urlencoded` as compressible.
+
+1.1.0 / 2014-09-28
+==================
+
+  * Add `application/font-woff2`
+
+1.0.3 / 2014-09-25
+==================
+
+  * Fix engine requirement in package
+
+1.0.2 / 2014-09-25
+==================
+
+  * Add `application/coap-group+json`
+  * Add `application/dcd`
+  * Add `application/vnd.apache.thrift.binary`
+  * Add `image/vnd.tencent.tap`
+  * Mark all JSON-derived types as compressible
+  * Update `text/vtt` data
+
+1.0.1 / 2014-08-30
+==================
+
+  * Fix extension ordering
+
+1.0.0 / 2014-08-30
+==================
+
+  * Add `application/atf`
+  * Add `application/merge-patch+json`
+  * Add `multipart/x-mixed-replace`
+  * Add `source: 'apache'` metadata
+  * Add `source: 'iana'` metadata
+  * Remove badly-assumed charset data
diff --git a/backend/node_modules/mime-db/LICENSE b/backend/node_modules/mime-db/LICENSE
new file mode 100644
index 0000000..0751cb1
--- /dev/null
+++ b/backend/node_modules/mime-db/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2014 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2015-2022 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/mime-db/README.md b/backend/node_modules/mime-db/README.md
new file mode 100644
index 0000000..5a8fcfe
--- /dev/null
+++ b/backend/node_modules/mime-db/README.md
@@ -0,0 +1,100 @@
+# mime-db
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-image]][node-url]
+[![Build Status][ci-image]][ci-url]
+[![Coverage Status][coveralls-image]][coveralls-url]
+
+This is a large database of mime types and information about them.
+It consists of a single, public JSON file and does not include any logic,
+allowing it to remain as un-opinionated as possible with an API.
+It aggregates data from the following sources:
+
+- http://www.iana.org/assignments/media-types/media-types.xhtml
+- http://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/conf/mime.types
+- http://hg.nginx.org/nginx/raw-file/default/conf/mime.types
+
+## Installation
+
+```bash
+npm install mime-db
+```
+
+### Database Download
+
+If you're crazy enough to use this in the browser, you can just grab the
+JSON file using [jsDelivr](https://www.jsdelivr.com/). It is recommended to
+replace `master` with [a release tag](https://github.com/jshttp/mime-db/tags)
+as the JSON format may change in the future.
+
+```
+https://cdn.jsdelivr.net/gh/jshttp/mime-db@master/db.json
+```
+
+## Usage
+
+```js
+var db = require('mime-db')
+
+// grab data on .js files
+var data = db['application/javascript']
+```
+
+## Data Structure
+
+The JSON file is a map lookup for lowercased mime types.
+Each mime type has the following properties:
+
+- `.source` - where the mime type is defined.
+    If not set, it's probably a custom media type.
+    - `apache` - [Apache common media types](http://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/conf/mime.types)
+    - `iana` - [IANA-defined media types](http://www.iana.org/assignments/media-types/media-types.xhtml)
+    - `nginx` - [nginx media types](http://hg.nginx.org/nginx/raw-file/default/conf/mime.types)
+- `.extensions[]` - known extensions associated with this mime type.
+- `.compressible` - whether a file of this type can be gzipped.
+- `.charset` - the default charset associated with this type, if any.
+
+If unknown, every property could be `undefined`.
+
+## Contributing
+
+To edit the database, only make PRs against `src/custom-types.json` or
+`src/custom-suffix.json`.
+
+The `src/custom-types.json` file is a JSON object with the MIME type as the
+keys and the values being an object with the following keys:
+
+- `compressible` - leave out if you don't know, otherwise `true`/`false` to
+  indicate whether the data represented by the type is typically compressible.
+- `extensions` - include an array of file extensions that are associated with
+  the type.
+- `notes` - human-readable notes about the type, typically what the type is.
+- `sources` - include an array of URLs of where the MIME type and the associated
+  extensions are sourced from. This needs to be a [primary source](https://en.wikipedia.org/wiki/Primary_source);
+  links to type aggregating sites and Wikipedia are _not acceptable_.
+
+To update the build, run `npm run build`.
+
+### Adding Custom Media Types
+
+The best way to get new media types included in this library is to register
+them with the IANA. The community registration procedure is outlined in
+[RFC 6838 section 5](http://tools.ietf.org/html/rfc6838#section-5). Types
+registered with the IANA are automatically pulled into this library.
+
+If that is not possible / feasible, they can be added directly here as a
+"custom" type. To do this, it is required to have a primary source that
+definitively lists the media type. If an extension is going to be listed as
+associateed with this media type, the source must definitively link the
+media type and extension as well.
+
+[ci-image]: https://badgen.net/github/checks/jshttp/mime-db/master?label=ci
+[ci-url]: https://github.com/jshttp/mime-db/actions?query=workflow%3Aci
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/mime-db/master
+[coveralls-url]: https://coveralls.io/r/jshttp/mime-db?branch=master
+[node-image]: https://badgen.net/npm/node/mime-db
+[node-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/mime-db
+[npm-url]: https://npmjs.org/package/mime-db
+[npm-version-image]: https://badgen.net/npm/v/mime-db
diff --git a/backend/node_modules/mime-db/db.json b/backend/node_modules/mime-db/db.json
new file mode 100644
index 0000000..eb9c42c
--- /dev/null
+++ b/backend/node_modules/mime-db/db.json
@@ -0,0 +1,8519 @@
+{
+  "application/1d-interleaved-parityfec": {
+    "source": "iana"
+  },
+  "application/3gpdash-qoe-report+xml": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true
+  },
+  "application/3gpp-ims+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/3gpphal+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/3gpphalforms+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/a2l": {
+    "source": "iana"
+  },
+  "application/ace+cbor": {
+    "source": "iana"
+  },
+  "application/activemessage": {
+    "source": "iana"
+  },
+  "application/activity+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-costmap+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-costmapfilter+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-directory+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-endpointcost+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-endpointcostparams+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-endpointprop+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-endpointpropparams+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-error+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-networkmap+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-networkmapfilter+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-updatestreamcontrol+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-updatestreamparams+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/aml": {
+    "source": "iana"
+  },
+  "application/andrew-inset": {
+    "source": "iana",
+    "extensions": ["ez"]
+  },
+  "application/applefile": {
+    "source": "iana"
+  },
+  "application/applixware": {
+    "source": "apache",
+    "extensions": ["aw"]
+  },
+  "application/at+jwt": {
+    "source": "iana"
+  },
+  "application/atf": {
+    "source": "iana"
+  },
+  "application/atfx": {
+    "source": "iana"
+  },
+  "application/atom+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["atom"]
+  },
+  "application/atomcat+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["atomcat"]
+  },
+  "application/atomdeleted+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["atomdeleted"]
+  },
+  "application/atomicmail": {
+    "source": "iana"
+  },
+  "application/atomsvc+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["atomsvc"]
+  },
+  "application/atsc-dwd+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["dwd"]
+  },
+  "application/atsc-dynamic-event-message": {
+    "source": "iana"
+  },
+  "application/atsc-held+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["held"]
+  },
+  "application/atsc-rdt+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/atsc-rsat+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["rsat"]
+  },
+  "application/atxml": {
+    "source": "iana"
+  },
+  "application/auth-policy+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/bacnet-xdd+zip": {
+    "source": "iana",
+    "compressible": false
+  },
+  "application/batch-smtp": {
+    "source": "iana"
+  },
+  "application/bdoc": {
+    "compressible": false,
+    "extensions": ["bdoc"]
+  },
+  "application/beep+xml": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true
+  },
+  "application/calendar+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/calendar+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["xcs"]
+  },
+  "application/call-completion": {
+    "source": "iana"
+  },
+  "application/cals-1840": {
+    "source": "iana"
+  },
+  "application/captive+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/cbor": {
+    "source": "iana"
+  },
+  "application/cbor-seq": {
+    "source": "iana"
+  },
+  "application/cccex": {
+    "source": "iana"
+  },
+  "application/ccmp+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/ccxml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["ccxml"]
+  },
+  "application/cdfx+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["cdfx"]
+  },
+  "application/cdmi-capability": {
+    "source": "iana",
+    "extensions": ["cdmia"]
+  },
+  "application/cdmi-container": {
+    "source": "iana",
+    "extensions": ["cdmic"]
+  },
+  "application/cdmi-domain": {
+    "source": "iana",
+    "extensions": ["cdmid"]
+  },
+  "application/cdmi-object": {
+    "source": "iana",
+    "extensions": ["cdmio"]
+  },
+  "application/cdmi-queue": {
+    "source": "iana",
+    "extensions": ["cdmiq"]
+  },
+  "application/cdni": {
+    "source": "iana"
+  },
+  "application/cea": {
+    "source": "iana"
+  },
+  "application/cea-2018+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/cellml+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/cfw": {
+    "source": "iana"
+  },
+  "application/city+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/clr": {
+    "source": "iana"
+  },
+  "application/clue+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/clue_info+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/cms": {
+    "source": "iana"
+  },
+  "application/cnrp+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/coap-group+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/coap-payload": {
+    "source": "iana"
+  },
+  "application/commonground": {
+    "source": "iana"
+  },
+  "application/conference-info+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/cose": {
+    "source": "iana"
+  },
+  "application/cose-key": {
+    "source": "iana"
+  },
+  "application/cose-key-set": {
+    "source": "iana"
+  },
+  "application/cpl+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["cpl"]
+  },
+  "application/csrattrs": {
+    "source": "iana"
+  },
+  "application/csta+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/cstadata+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/csvm+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/cu-seeme": {
+    "source": "apache",
+    "extensions": ["cu"]
+  },
+  "application/cwt": {
+    "source": "iana"
+  },
+  "application/cybercash": {
+    "source": "iana"
+  },
+  "application/dart": {
+    "compressible": true
+  },
+  "application/dash+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mpd"]
+  },
+  "application/dash-patch+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mpp"]
+  },
+  "application/dashdelta": {
+    "source": "iana"
+  },
+  "application/davmount+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["davmount"]
+  },
+  "application/dca-rft": {
+    "source": "iana"
+  },
+  "application/dcd": {
+    "source": "iana"
+  },
+  "application/dec-dx": {
+    "source": "iana"
+  },
+  "application/dialog-info+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/dicom": {
+    "source": "iana"
+  },
+  "application/dicom+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/dicom+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/dii": {
+    "source": "iana"
+  },
+  "application/dit": {
+    "source": "iana"
+  },
+  "application/dns": {
+    "source": "iana"
+  },
+  "application/dns+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/dns-message": {
+    "source": "iana"
+  },
+  "application/docbook+xml": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["dbk"]
+  },
+  "application/dots+cbor": {
+    "source": "iana"
+  },
+  "application/dskpp+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/dssc+der": {
+    "source": "iana",
+    "extensions": ["dssc"]
+  },
+  "application/dssc+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["xdssc"]
+  },
+  "application/dvcs": {
+    "source": "iana"
+  },
+  "application/ecmascript": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["es","ecma"]
+  },
+  "application/edi-consent": {
+    "source": "iana"
+  },
+  "application/edi-x12": {
+    "source": "iana",
+    "compressible": false
+  },
+  "application/edifact": {
+    "source": "iana",
+    "compressible": false
+  },
+  "application/efi": {
+    "source": "iana"
+  },
+  "application/elm+json": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true
+  },
+  "application/elm+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/emergencycalldata.cap+xml": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true
+  },
+  "application/emergencycalldata.comment+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/emergencycalldata.control+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/emergencycalldata.deviceinfo+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/emergencycalldata.ecall.msd": {
+    "source": "iana"
+  },
+  "application/emergencycalldata.providerinfo+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/emergencycalldata.serviceinfo+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/emergencycalldata.subscriberinfo+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/emergencycalldata.veds+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/emma+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["emma"]
+  },
+  "application/emotionml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["emotionml"]
+  },
+  "application/encaprtp": {
+    "source": "iana"
+  },
+  "application/epp+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/epub+zip": {
+    "source": "iana",
+    "compressible": false,
+    "extensions": ["epub"]
+  },
+  "application/eshop": {
+    "source": "iana"
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+  "application/exi": {
+    "source": "iana",
+    "extensions": ["exi"]
+  },
+  "application/expect-ct-report+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/express": {
+    "source": "iana",
+    "extensions": ["exp"]
+  },
+  "application/fastinfoset": {
+    "source": "iana"
+  },
+  "application/fastsoap": {
+    "source": "iana"
+  },
+  "application/fdt+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["fdt"]
+  },
+  "application/fhir+json": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true
+  },
+  "application/fhir+xml": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true
+  },
+  "application/fido.trusted-apps+json": {
+    "compressible": true
+  },
+  "application/fits": {
+    "source": "iana"
+  },
+  "application/flexfec": {
+    "source": "iana"
+  },
+  "application/font-sfnt": {
+    "source": "iana"
+  },
+  "application/font-tdpfr": {
+    "source": "iana",
+    "extensions": ["pfr"]
+  },
+  "application/font-woff": {
+    "source": "iana",
+    "compressible": false
+  },
+  "application/framework-attributes+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/geo+json": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["geojson"]
+  },
+  "application/geo+json-seq": {
+    "source": "iana"
+  },
+  "application/geopackage+sqlite3": {
+    "source": "iana"
+  },
+  "application/geoxacml+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/gltf-buffer": {
+    "source": "iana"
+  },
+  "application/gml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["gml"]
+  },
+  "application/gpx+xml": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["gpx"]
+  },
+  "application/gxf": {
+    "source": "apache",
+    "extensions": ["gxf"]
+  },
+  "application/gzip": {
+    "source": "iana",
+    "compressible": false,
+    "extensions": ["gz"]
+  },
+  "application/h224": {
+    "source": "iana"
+  },
+  "application/held+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/hjson": {
+    "extensions": ["hjson"]
+  },
+  "application/http": {
+    "source": "iana"
+  },
+  "application/hyperstudio": {
+    "source": "iana",
+    "extensions": ["stk"]
+  },
+  "application/ibe-key-request+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/ibe-pkg-reply+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/ibe-pp-data": {
+    "source": "iana"
+  },
+  "application/iges": {
+    "source": "iana"
+  },
+  "application/im-iscomposing+xml": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true
+  },
+  "application/index": {
+    "source": "iana"
+  },
+  "application/index.cmd": {
+    "source": "iana"
+  },
+  "application/index.obj": {
+    "source": "iana"
+  },
+  "application/index.response": {
+    "source": "iana"
+  },
+  "application/index.vnd": {
+    "source": "iana"
+  },
+  "application/inkml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["ink","inkml"]
+  },
+  "application/iotp": {
+    "source": "iana"
+  },
+  "application/ipfix": {
+    "source": "iana",
+    "extensions": ["ipfix"]
+  },
+  "application/ipp": {
+    "source": "iana"
+  },
+  "application/isup": {
+    "source": "iana"
+  },
+  "application/its+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["its"]
+  },
+  "application/java-archive": {
+    "source": "apache",
+    "compressible": false,
+    "extensions": ["jar","war","ear"]
+  },
+  "application/java-serialized-object": {
+    "source": "apache",
+    "compressible": false,
+    "extensions": ["ser"]
+  },
+  "application/java-vm": {
+    "source": "apache",
+    "compressible": false,
+    "extensions": ["class"]
+  },
+  "application/javascript": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true,
+    "extensions": ["js","mjs"]
+  },
+  "application/jf2feed+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/jose": {
+    "source": "iana"
+  },
+  "application/jose+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/jrd+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/jscalendar+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/json": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true,
+    "extensions": ["json","map"]
+  },
+  "application/json-patch+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/json-seq": {
+    "source": "iana"
+  },
+  "application/json5": {
+    "extensions": ["json5"]
+  },
+  "application/jsonml+json": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["jsonml"]
+  },
+  "application/jwk+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/jwk-set+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/jwt": {
+    "source": "iana"
+  },
+  "application/kpml-request+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/kpml-response+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/ld+json": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["jsonld"]
+  },
+  "application/lgr+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["lgr"]
+  },
+  "application/link-format": {
+    "source": "iana"
+  },
+  "application/load-control+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/lost+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["lostxml"]
+  },
+  "application/lostsync+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/lpf+zip": {
+    "source": "iana",
+    "compressible": false
+  },
+  "application/lxf": {
+    "source": "iana"
+  },
+  "application/mac-binhex40": {
+    "source": "iana",
+    "extensions": ["hqx"]
+  },
+  "application/mac-compactpro": {
+    "source": "apache",
+    "extensions": ["cpt"]
+  },
+  "application/macwriteii": {
+    "source": "iana"
+  },
+  "application/mads+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mads"]
+  },
+  "application/manifest+json": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true,
+    "extensions": ["webmanifest"]
+  },
+  "application/marc": {
+    "source": "iana",
+    "extensions": ["mrc"]
+  },
+  "application/marcxml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mrcx"]
+  },
+  "application/mathematica": {
+    "source": "iana",
+    "extensions": ["ma","nb","mb"]
+  },
+  "application/mathml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mathml"]
+  },
+  "application/mathml-content+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mathml-presentation+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-associated-procedure-description+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-deregister+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-envelope+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-msk+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-msk-response+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-protection-description+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-reception-report+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-register+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-register-response+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-schedule+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-user-service-description+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbox": {
+    "source": "iana",
+    "extensions": ["mbox"]
+  },
+  "application/media-policy-dataset+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mpf"]
+  },
+  "application/media_control+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mediaservercontrol+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mscml"]
+  },
+  "application/merge-patch+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/metalink+xml": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["metalink"]
+  },
+  "application/metalink4+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["meta4"]
+  },
+  "application/mets+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mets"]
+  },
+  "application/mf4": {
+    "source": "iana"
+  },
+  "application/mikey": {
+    "source": "iana"
+  },
+  "application/mipc": {
+    "source": "iana"
+  },
+  "application/missing-blocks+cbor-seq": {
+    "source": "iana"
+  },
+  "application/mmt-aei+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["maei"]
+  },
+  "application/mmt-usd+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["musd"]
+  },
+  "application/mods+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mods"]
+  },
+  "application/moss-keys": {
+    "source": "iana"
+  },
+  "application/moss-signature": {
+    "source": "iana"
+  },
+  "application/mosskey-data": {
+    "source": "iana"
+  },
+  "application/mosskey-request": {
+    "source": "iana"
+  },
+  "application/mp21": {
+    "source": "iana",
+    "extensions": ["m21","mp21"]
+  },
+  "application/mp4": {
+    "source": "iana",
+    "extensions": ["mp4s","m4p"]
+  },
+  "application/mpeg4-generic": {
+    "source": "iana"
+  },
+  "application/mpeg4-iod": {
+    "source": "iana"
+  },
+  "application/mpeg4-iod-xmt": {
+    "source": "iana"
+  },
+  "application/mrb-consumer+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mrb-publish+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/msc-ivr+xml": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true
+  },
+  "application/msc-mixer+xml": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true
+  },
+  "application/msword": {
+    "source": "iana",
+    "compressible": false,
+    "extensions": ["doc","dot"]
+  },
+  "application/mud+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/multipart-core": {
+    "source": "iana"
+  },
+  "application/mxf": {
+    "source": "iana",
+    "extensions": ["mxf"]
+  },
+  "application/n-quads": {
+    "source": "iana",
+    "extensions": ["nq"]
+  },
+  "application/n-triples": {
+    "source": "iana",
+    "extensions": ["nt"]
+  },
+  "application/nasdata": {
+    "source": "iana"
+  },
+  "application/news-checkgroups": {
+    "source": "iana",
+    "charset": "US-ASCII"
+  },
+  "application/news-groupinfo": {
+    "source": "iana",
+    "charset": "US-ASCII"
+  },
+  "application/news-transmission": {
+    "source": "iana"
+  },
+  "application/nlsml+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/node": {
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+    "extensions": ["cjs"]
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+  "application/nss": {
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+  "application/oauth-authz-req+jwt": {
+    "source": "iana"
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+  "application/oblivious-dns-message": {
+    "source": "iana"
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+  "application/ocsp-request": {
+    "source": "iana"
+  },
+  "application/ocsp-response": {
+    "source": "iana"
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+  "application/octet-stream": {
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+    "compressible": false,
+    "extensions": ["bin","dms","lrf","mar","so","dist","distz","pkg","bpk","dump","elc","deploy","exe","dll","deb","dmg","iso","img","msi","msp","msm","buffer"]
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+    "extensions": ["oda"]
+  },
+  "application/odm+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/odx": {
+    "source": "iana"
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+  "application/oebps-package+xml": {
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+    "compressible": true,
+    "extensions": ["opf"]
+  },
+  "application/ogg": {
+    "source": "iana",
+    "compressible": false,
+    "extensions": ["ogx"]
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+  "application/omdoc+xml": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["omdoc"]
+  },
+  "application/onenote": {
+    "source": "apache",
+    "extensions": ["onetoc","onetoc2","onetmp","onepkg"]
+  },
+  "application/opc-nodeset+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/oscore": {
+    "source": "iana"
+  },
+  "application/oxps": {
+    "source": "iana",
+    "extensions": ["oxps"]
+  },
+  "application/p21": {
+    "source": "iana"
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+  "application/p21+zip": {
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+    "compressible": false
+  },
+  "application/p2p-overlay+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["relo"]
+  },
+  "application/parityfec": {
+    "source": "iana"
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+  "application/passport": {
+    "source": "iana"
+  },
+  "application/patch-ops-error+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["xer"]
+  },
+  "application/pdf": {
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+    "compressible": false,
+    "extensions": ["pdf"]
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+  "application/pdx": {
+    "source": "iana"
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+  "application/pem-certificate-chain": {
+    "source": "iana"
+  },
+  "application/pgp-encrypted": {
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+    "compressible": false,
+    "extensions": ["pgp"]
+  },
+  "application/pgp-keys": {
+    "source": "iana",
+    "extensions": ["asc"]
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+  "application/pgp-signature": {
+    "source": "iana",
+    "extensions": ["asc","sig"]
+  },
+  "application/pics-rules": {
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+    "extensions": ["prf"]
+  },
+  "application/pidf+xml": {
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+    "charset": "UTF-8",
+    "compressible": true
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+  "application/pidf-diff+xml": {
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+    "charset": "UTF-8",
+    "compressible": true
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+  "application/pkcs10": {
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+    "extensions": ["p10"]
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+  "application/pkcs12": {
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+  "application/pkcs7-mime": {
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+    "extensions": ["p7m","p7c"]
+  },
+  "application/pkcs7-signature": {
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+    "extensions": ["p7s"]
+  },
+  "application/pkcs8": {
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+    "extensions": ["p8"]
+  },
+  "application/pkcs8-encrypted": {
+    "source": "iana"
+  },
+  "application/pkix-attr-cert": {
+    "source": "iana",
+    "extensions": ["ac"]
+  },
+  "application/pkix-cert": {
+    "source": "iana",
+    "extensions": ["cer"]
+  },
+  "application/pkix-crl": {
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+    "extensions": ["crl"]
+  },
+  "application/pkix-pkipath": {
+    "source": "iana",
+    "extensions": ["pkipath"]
+  },
+  "application/pkixcmp": {
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+    "extensions": ["pki"]
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+  "application/pls+xml": {
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+    "compressible": true,
+    "extensions": ["pls"]
+  },
+  "application/poc-settings+xml": {
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+    "charset": "UTF-8",
+    "compressible": true
+  },
+  "application/postscript": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["ai","eps","ps"]
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+  "application/ppsp-tracker+json": {
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+    "compressible": true
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+  "application/problem+json": {
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+    "compressible": true
+  },
+  "application/problem+xml": {
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+    "compressible": true
+  },
+  "application/provenance+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["provx"]
+  },
+  "application/prs.alvestrand.titrax-sheet": {
+    "source": "iana"
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+  "application/prs.cww": {
+    "source": "iana",
+    "extensions": ["cww"]
+  },
+  "application/prs.cyn": {
+    "source": "iana",
+    "charset": "7-BIT"
+  },
+  "application/prs.hpub+zip": {
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+    "compressible": false
+  },
+  "application/prs.nprend": {
+    "source": "iana"
+  },
+  "application/prs.plucker": {
+    "source": "iana"
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+  "application/prs.rdf-xml-crypt": {
+    "source": "iana"
+  },
+  "application/prs.xsf+xml": {
+    "source": "iana",
+    "compressible": true
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+  "application/pskc+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["pskcxml"]
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+  "application/pvd+json": {
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+    "compressible": true
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+  "application/qsig": {
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+  "application/raml+yaml": {
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+    "extensions": ["raml"]
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+  "application/raptorfec": {
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+  },
+  "application/rdap+json": {
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+    "compressible": true
+  },
+  "application/rdf+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["rdf","owl"]
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+  "application/reginfo+xml": {
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+    "compressible": true,
+    "extensions": ["rif"]
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+  "application/relax-ng-compact-syntax": {
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+    "extensions": ["rnc"]
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+  "application/remote-printing": {
+    "source": "iana"
+  },
+  "application/reputon+json": {
+    "source": "iana",
+    "compressible": true
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+  "application/resource-lists+xml": {
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+    "compressible": true,
+    "extensions": ["rl"]
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+  "application/resource-lists-diff+xml": {
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+    "compressible": true,
+    "extensions": ["rld"]
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+  "application/rfc+xml": {
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+    "compressible": true
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+  "application/riscos": {
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+  "application/rlmi+xml": {
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+    "compressible": true
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+  "application/rls-services+xml": {
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+    "compressible": true,
+    "extensions": ["rs"]
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+  "application/route-apd+xml": {
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+    "compressible": true,
+    "extensions": ["rapd"]
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+  "application/route-s-tsid+xml": {
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+    "compressible": true,
+    "extensions": ["sls"]
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+  "application/route-usd+xml": {
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+    "compressible": true,
+    "extensions": ["rusd"]
+  },
+  "application/rpki-ghostbusters": {
+    "source": "iana",
+    "extensions": ["gbr"]
+  },
+  "application/rpki-manifest": {
+    "source": "iana",
+    "extensions": ["mft"]
+  },
+  "application/rpki-publication": {
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+  "application/rpki-roa": {
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+    "extensions": ["roa"]
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+  "application/rpki-updown": {
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+  "application/rsd+xml": {
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+    "extensions": ["rsd"]
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+  "application/rss+xml": {
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+    "compressible": true,
+    "extensions": ["rss"]
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+  "application/rtf": {
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+    "compressible": true,
+    "extensions": ["rtf"]
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+  "application/rtploopback": {
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+  "application/rtx": {
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+  "application/samlassertion+xml": {
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+    "compressible": true
+  },
+  "application/samlmetadata+xml": {
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+    "compressible": true
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+  "application/sarif+json": {
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+    "compressible": true
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+  "application/sarif-external-properties+json": {
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+    "compressible": true
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+  "application/sbe": {
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+  "application/sbml+xml": {
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+    "compressible": true,
+    "extensions": ["sbml"]
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+  "application/scaip+xml": {
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+    "compressible": true
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+  "application/scim+json": {
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+    "compressible": true
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+  "application/scvp-cv-request": {
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+    "extensions": ["scq"]
+  },
+  "application/scvp-cv-response": {
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+    "extensions": ["scs"]
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+  "application/scvp-vp-request": {
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+    "extensions": ["spq"]
+  },
+  "application/scvp-vp-response": {
+    "source": "iana",
+    "extensions": ["spp"]
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+  "application/sdp": {
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+    "extensions": ["sdp"]
+  },
+  "application/secevent+jwt": {
+    "source": "iana"
+  },
+  "application/senml+cbor": {
+    "source": "iana"
+  },
+  "application/senml+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/senml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["senmlx"]
+  },
+  "application/senml-etch+cbor": {
+    "source": "iana"
+  },
+  "application/senml-etch+json": {
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+    "compressible": true
+  },
+  "application/senml-exi": {
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+  },
+  "application/sensml+cbor": {
+    "source": "iana"
+  },
+  "application/sensml+json": {
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+    "compressible": true
+  },
+  "application/sensml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["sensmlx"]
+  },
+  "application/sensml-exi": {
+    "source": "iana"
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+  "application/sep+xml": {
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+    "compressible": true
+  },
+  "application/sep-exi": {
+    "source": "iana"
+  },
+  "application/session-info": {
+    "source": "iana"
+  },
+  "application/set-payment": {
+    "source": "iana"
+  },
+  "application/set-payment-initiation": {
+    "source": "iana",
+    "extensions": ["setpay"]
+  },
+  "application/set-registration": {
+    "source": "iana"
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+  "application/set-registration-initiation": {
+    "source": "iana",
+    "extensions": ["setreg"]
+  },
+  "application/sgml": {
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+  },
+  "application/sgml-open-catalog": {
+    "source": "iana"
+  },
+  "application/shf+xml": {
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+    "compressible": true,
+    "extensions": ["shf"]
+  },
+  "application/sieve": {
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+    "extensions": ["siv","sieve"]
+  },
+  "application/simple-filter+xml": {
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+    "compressible": true
+  },
+  "application/simple-message-summary": {
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+  },
+  "application/simplesymbolcontainer": {
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+  },
+  "application/sipc": {
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+  },
+  "application/slate": {
+    "source": "iana"
+  },
+  "application/smil": {
+    "source": "iana"
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+  "application/smil+xml": {
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+    "compressible": true,
+    "extensions": ["smi","smil"]
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+  "application/smpte336m": {
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+  "application/soap+fastinfoset": {
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+  "application/soap+xml": {
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+    "compressible": true
+  },
+  "application/sparql-query": {
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+    "extensions": ["rq"]
+  },
+  "application/sparql-results+xml": {
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+    "compressible": true,
+    "extensions": ["srx"]
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+  "application/spdx+json": {
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+    "compressible": true
+  },
+  "application/spirits-event+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/sql": {
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+  "application/srgs": {
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+    "extensions": ["gram"]
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+  "application/srgs+xml": {
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+    "compressible": true,
+    "extensions": ["grxml"]
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+    "compressible": true,
+    "extensions": ["sru"]
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+    "compressible": true,
+    "extensions": ["ssdl"]
+  },
+  "application/ssml+xml": {
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+    "compressible": true,
+    "extensions": ["ssml"]
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+  "application/stix+json": {
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+    "compressible": true
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+  "application/swid+xml": {
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+    "compressible": true,
+    "extensions": ["swidtag"]
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+  "application/tamp-apex-update": {
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+  "application/tamp-apex-update-confirm": {
+    "source": "iana"
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+  "application/tamp-community-update": {
+    "source": "iana"
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+  "application/tamp-community-update-confirm": {
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+  "application/tamp-error": {
+    "source": "iana"
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+  "application/tamp-sequence-adjust": {
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+  "application/tamp-sequence-adjust-confirm": {
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+  "application/tamp-status-query": {
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+    "source": "iana"
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+  "application/tamp-update": {
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+  "application/tamp-update-confirm": {
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+  "application/tar": {
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+  "application/taxii+json": {
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+    "compressible": true
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+  "application/td+json": {
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+    "compressible": true
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+  "application/tei+xml": {
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+    "compressible": true,
+    "extensions": ["tei","teicorpus"]
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+  "application/tetra_isi": {
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+  "application/thraud+xml": {
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+    "compressible": true,
+    "extensions": ["tfi"]
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+  "application/timestamp-query": {
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+  "application/timestamp-reply": {
+    "source": "iana"
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+  "application/timestamped-data": {
+    "source": "iana",
+    "extensions": ["tsd"]
+  },
+  "application/tlsrpt+gzip": {
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+  "application/tlsrpt+json": {
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+    "compressible": true
+  },
+  "application/tnauthlist": {
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+  "application/token-introspection+jwt": {
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+  "application/toml": {
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+    "extensions": ["toml"]
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+  "application/trickle-ice-sdpfrag": {
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+  "application/trig": {
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+    "extensions": ["trig"]
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+  "application/ttml+xml": {
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+    "compressible": true,
+    "extensions": ["ttml"]
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+  "application/tve-trigger": {
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+  "application/tzif": {
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+  "application/tzif-leap": {
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+  "application/ubjson": {
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+    "extensions": ["ubj"]
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+  "application/ulpfec": {
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+  "application/urc-grpsheet+xml": {
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+    "compressible": true
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+  "application/urc-ressheet+xml": {
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+    "compressible": true,
+    "extensions": ["rsheet"]
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+    "extensions": ["td"]
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+  "application/urc-uisocketdesc+xml": {
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+    "compressible": true
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+  "application/vcard+json": {
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+    "compressible": true
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+  "application/vcard+xml": {
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+    "compressible": true
+  },
+  "application/vemmi": {
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+  "application/vividence.scriptfile": {
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+  "application/vnd.1000minds.decision-model+xml": {
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+    "compressible": true,
+    "extensions": ["1km"]
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+  "application/vnd.3gpp-prose-pc3ch+xml": {
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+    "compressible": true
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+  "application/vnd.3gpp-v2x-local-service-information": {
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+  "application/vnd.3gpp.5gnas": {
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+  "application/vnd.3gpp.access-transfer-events+xml": {
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+  "application/vnd.3gpp.bsf+xml": {
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+  "application/vnd.3gpp.interworking-data": {
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+  "application/vnd.3gpp.lpp": {
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+  "application/vnd.3gpp.mc-signalling-ear": {
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+  "application/vnd.3gpp.mcdata-affiliation-command+xml": {
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+    "compressible": true
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+    "compressible": true
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+    "compressible": true
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+  "application/vnd.3gpp.mcdata-signalling": {
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+  "application/vnd.3gpp.mcdata-user-profile+xml": {
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+  "application/vnd.3gpp.mcptt-floor-request+xml": {
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+    "compressible": true
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+    "compressible": true
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+    "compressible": true
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+    "compressible": true
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+    "extensions": ["wif"]
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+    "extensions": ["hlp"]
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+    "extensions": ["7z"]
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+    "extensions": ["abw"]
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+    "extensions": ["ace"]
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+  "application/x-apple-diskimage": {
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+    "extensions": ["dmg"]
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+    "extensions": ["arj"]
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+    "extensions": ["aab","x32","u32","vox"]
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+    "extensions": ["aam"]
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+    "extensions": ["aas"]
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+    "extensions": ["bcpio"]
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+    "extensions": ["bdoc"]
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+    "extensions": ["torrent"]
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+    "extensions": ["blb","blorb"]
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+    "extensions": ["bz"]
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+    "extensions": ["bz2","boz"]
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+    "extensions": ["cbr","cba","cbt","cbz","cb7"]
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+    "extensions": ["vcd"]
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+    "extensions": ["cfs"]
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+    "extensions": ["chat"]
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+  "application/x-chess-pgn": {
+    "source": "apache",
+    "extensions": ["pgn"]
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+  "application/x-chrome-extension": {
+    "extensions": ["crx"]
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+  "application/x-cocoa": {
+    "source": "nginx",
+    "extensions": ["cco"]
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+  "application/x-compress": {
+    "source": "apache"
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+  "application/x-conference": {
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+    "extensions": ["nsc"]
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+    "extensions": ["cpio"]
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+    "extensions": ["csh"]
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+    "extensions": ["deb","udeb"]
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+    "extensions": ["dgc"]
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+    "extensions": ["wad"]
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+    "extensions": ["ncx"]
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+    "extensions": ["dtb"]
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+    "extensions": ["res"]
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+    "extensions": ["dvi"]
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+    "extensions": ["evy"]
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+    "extensions": ["eva"]
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+    "extensions": ["bdf"]
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+    "extensions": ["psf"]
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+  "application/x-font-pcf": {
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+    "extensions": ["pcf"]
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+    "extensions": ["snf"]
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+  "application/x-font-sunos-news": {
+    "source": "apache"
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+    "source": "apache",
+    "extensions": ["pfa","pfb","pfm","afm"]
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+    "source": "apache"
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+    "extensions": ["arc"]
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+  "application/x-futuresplash": {
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+    "extensions": ["spl"]
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+    "extensions": ["gca"]
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+    "extensions": ["ulx"]
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+    "extensions": ["gnumeric"]
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+    "extensions": ["gramps"]
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+    "extensions": ["gtar"]
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+  "application/x-hdf": {
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+    "extensions": ["php"]
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+  "application/x-install-instructions": {
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+    "extensions": ["install"]
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+  "application/x-iso9660-image": {
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+    "extensions": ["iso"]
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+  "application/x-iwork-keynote-sffkey": {
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+  "application/x-iwork-numbers-sffnumbers": {
+    "extensions": ["numbers"]
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+  "application/x-iwork-pages-sffpages": {
+    "extensions": ["pages"]
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+  "application/x-java-archive-diff": {
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+    "extensions": ["jardiff"]
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+  "application/x-java-jnlp-file": {
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+    "compressible": false,
+    "extensions": ["jnlp"]
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+  "application/x-keepass2": {
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+    "compressible": false,
+    "extensions": ["latex"]
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+  "application/x-lua-bytecode": {
+    "extensions": ["luac"]
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+  "application/x-lzh-compressed": {
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+    "extensions": ["lzh","lha"]
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+  "application/x-makeself": {
+    "source": "nginx",
+    "extensions": ["run"]
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+  "application/x-mie": {
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+    "extensions": ["mie"]
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+  "application/x-mobipocket-ebook": {
+    "source": "apache",
+    "extensions": ["prc","mobi"]
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+  "application/x-mpegurl": {
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+  "application/x-ms-application": {
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+    "extensions": ["application"]
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+  "application/x-ms-shortcut": {
+    "source": "apache",
+    "extensions": ["lnk"]
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+  "application/x-ms-wmd": {
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+    "extensions": ["wmd"]
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+  "application/x-ms-wmz": {
+    "source": "apache",
+    "extensions": ["wmz"]
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+  "application/x-ms-xbap": {
+    "source": "apache",
+    "extensions": ["xbap"]
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+  "application/x-msaccess": {
+    "source": "apache",
+    "extensions": ["mdb"]
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+  "application/x-msbinder": {
+    "source": "apache",
+    "extensions": ["obd"]
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+  "application/x-mscardfile": {
+    "source": "apache",
+    "extensions": ["crd"]
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+  "application/x-msclip": {
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+    "extensions": ["clp"]
+  },
+  "application/x-msdos-program": {
+    "extensions": ["exe"]
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+  "application/x-msdownload": {
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+    "extensions": ["exe","dll","com","bat","msi"]
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+  "application/x-msmediaview": {
+    "source": "apache",
+    "extensions": ["mvb","m13","m14"]
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+  "application/x-msmetafile": {
+    "source": "apache",
+    "extensions": ["wmf","wmz","emf","emz"]
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+  "application/x-msmoney": {
+    "source": "apache",
+    "extensions": ["mny"]
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+  "application/x-mspublisher": {
+    "source": "apache",
+    "extensions": ["pub"]
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+  "application/x-msschedule": {
+    "source": "apache",
+    "extensions": ["scd"]
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+  "application/x-msterminal": {
+    "source": "apache",
+    "extensions": ["trm"]
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+  "application/x-mswrite": {
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+    "extensions": ["wri"]
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+  "application/x-netcdf": {
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+    "extensions": ["nc","cdf"]
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+  "application/x-ns-proxy-autoconfig": {
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+    "extensions": ["pac"]
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+  "application/x-nzb": {
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+    "extensions": ["nzb"]
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+  "application/x-perl": {
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+    "extensions": ["pl","pm"]
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+  "application/x-pilot": {
+    "source": "nginx",
+    "extensions": ["prc","pdb"]
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+  "application/x-pkcs12": {
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+    "compressible": false,
+    "extensions": ["p12","pfx"]
+  },
+  "application/x-pkcs7-certificates": {
+    "source": "apache",
+    "extensions": ["p7b","spc"]
+  },
+  "application/x-pkcs7-certreqresp": {
+    "source": "apache",
+    "extensions": ["p7r"]
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+  "application/x-pki-message": {
+    "source": "iana"
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+  "application/x-rar-compressed": {
+    "source": "apache",
+    "compressible": false,
+    "extensions": ["rar"]
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+  "application/x-redhat-package-manager": {
+    "source": "nginx",
+    "extensions": ["rpm"]
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+  "application/x-research-info-systems": {
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+    "extensions": ["ris"]
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+  "application/x-sea": {
+    "source": "nginx",
+    "extensions": ["sea"]
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+  "application/x-sh": {
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+    "compressible": true,
+    "extensions": ["sh"]
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+  "application/x-shar": {
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+    "extensions": ["shar"]
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+  "application/x-shockwave-flash": {
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+    "compressible": false,
+    "extensions": ["swf"]
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+  "application/x-silverlight-app": {
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+    "extensions": ["xap"]
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+    "extensions": ["sql"]
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+    "compressible": false,
+    "extensions": ["sit"]
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+    "extensions": ["sitx"]
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+    "extensions": ["srt"]
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+    "extensions": ["sv4cpio"]
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+    "extensions": ["sv4crc"]
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+  "application/x-t3vm-image": {
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+    "extensions": ["t3"]
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+  "application/x-tads": {
+    "source": "apache",
+    "extensions": ["gam"]
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+  "application/x-tar": {
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+    "compressible": true,
+    "extensions": ["tar"]
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+    "extensions": ["tcl","tk"]
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+  "application/x-tex": {
+    "source": "apache",
+    "extensions": ["tex"]
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+  "application/x-tex-tfm": {
+    "source": "apache",
+    "extensions": ["tfm"]
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+  "application/x-texinfo": {
+    "source": "apache",
+    "extensions": ["texinfo","texi"]
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+    "extensions": ["obj"]
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+  "application/x-ustar": {
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+    "extensions": ["ustar"]
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+  "application/x-virtualbox-hdd": {
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+    "extensions": ["hdd"]
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+  "application/x-virtualbox-ova": {
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+    "extensions": ["ova"]
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+    "extensions": ["ovf"]
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+    "extensions": ["vbox"]
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+    "extensions": ["vbox-extpack"]
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+    "extensions": ["vdi"]
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+  "application/x-virtualbox-vhd": {
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+    "extensions": ["vhd"]
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+    "extensions": ["vmdk"]
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+  "application/x-wais-source": {
+    "source": "apache",
+    "extensions": ["src"]
+  },
+  "application/x-web-app-manifest+json": {
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+    "extensions": ["webapp"]
+  },
+  "application/x-www-form-urlencoded": {
+    "source": "iana",
+    "compressible": true
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+  "application/x-x509-ca-cert": {
+    "source": "iana",
+    "extensions": ["der","crt","pem"]
+  },
+  "application/x-x509-ca-ra-cert": {
+    "source": "iana"
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+  "application/x-x509-next-ca-cert": {
+    "source": "iana"
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+  "application/x-xfig": {
+    "source": "apache",
+    "extensions": ["fig"]
+  },
+  "application/x-xliff+xml": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["xlf"]
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+  "application/x-xpinstall": {
+    "source": "apache",
+    "compressible": false,
+    "extensions": ["xpi"]
+  },
+  "application/x-xz": {
+    "source": "apache",
+    "extensions": ["xz"]
+  },
+  "application/x-zmachine": {
+    "source": "apache",
+    "extensions": ["z1","z2","z3","z4","z5","z6","z7","z8"]
+  },
+  "application/x400-bp": {
+    "source": "iana"
+  },
+  "application/xacml+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/xaml+xml": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["xaml"]
+  },
+  "application/xcap-att+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["xav"]
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+  "application/xcap-caps+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["xca"]
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+  "application/xcap-diff+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["xdf"]
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+  "application/xcap-el+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["xel"]
+  },
+  "application/xcap-error+xml": {
+    "source": "iana",
+    "compressible": true
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+  "application/xcap-ns+xml": {
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+    "compressible": true,
+    "extensions": ["xns"]
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+  "application/xcon-conference-info+xml": {
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+    "compressible": true
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+  "application/xcon-conference-info-diff+xml": {
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+    "compressible": true
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+  "application/xenc+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["xenc"]
+  },
+  "application/xhtml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["xhtml","xht"]
+  },
+  "application/xhtml-voice+xml": {
+    "source": "apache",
+    "compressible": true
+  },
+  "application/xliff+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["xlf"]
+  },
+  "application/xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["xml","xsl","xsd","rng"]
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+  "application/xml-dtd": {
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+    "compressible": true,
+    "extensions": ["dtd"]
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+  "application/xml-external-parsed-entity": {
+    "source": "iana"
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+  "application/xml-patch+xml": {
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+    "compressible": true
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+  "application/xmpp+xml": {
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+    "compressible": true
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+  "application/xop+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["xop"]
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+  "application/xproc+xml": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["xpl"]
+  },
+  "application/xslt+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["xsl","xslt"]
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+  "application/xspf+xml": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["xspf"]
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+  "application/xv+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mxml","xhvml","xvml","xvm"]
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+  "application/yang": {
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+    "extensions": ["yang"]
+  },
+  "application/yang-data+json": {
+    "source": "iana",
+    "compressible": true
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+  "application/yang-data+xml": {
+    "source": "iana",
+    "compressible": true
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+  "application/yang-patch+json": {
+    "source": "iana",
+    "compressible": true
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+  "application/yang-patch+xml": {
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+    "compressible": true
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+  "application/yin+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["yin"]
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+  "application/zip": {
+    "source": "iana",
+    "compressible": false,
+    "extensions": ["zip"]
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+  "application/zlib": {
+    "source": "iana"
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+  "application/zstd": {
+    "source": "iana"
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+  "audio/1d-interleaved-parityfec": {
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+  "audio/32kadpcm": {
+    "source": "iana"
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+  "audio/3gpp": {
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+    "compressible": false,
+    "extensions": ["3gpp"]
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+  "audio/aac": {
+    "source": "iana"
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+  "audio/ac3": {
+    "source": "iana"
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+  "audio/adpcm": {
+    "source": "apache",
+    "extensions": ["adp"]
+  },
+  "audio/amr": {
+    "source": "iana",
+    "extensions": ["amr"]
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+    "extensions": ["c","cc","cxx","cpp","h","hh","dic"]
+  },
+  "text/x-component": {
+    "source": "nginx",
+    "extensions": ["htc"]
+  },
+  "text/x-fortran": {
+    "source": "apache",
+    "extensions": ["f","for","f77","f90"]
+  },
+  "text/x-gwt-rpc": {
+    "compressible": true
+  },
+  "text/x-handlebars-template": {
+    "extensions": ["hbs"]
+  },
+  "text/x-java-source": {
+    "source": "apache",
+    "extensions": ["java"]
+  },
+  "text/x-jquery-tmpl": {
+    "compressible": true
+  },
+  "text/x-lua": {
+    "extensions": ["lua"]
+  },
+  "text/x-markdown": {
+    "compressible": true,
+    "extensions": ["mkd"]
+  },
+  "text/x-nfo": {
+    "source": "apache",
+    "extensions": ["nfo"]
+  },
+  "text/x-opml": {
+    "source": "apache",
+    "extensions": ["opml"]
+  },
+  "text/x-org": {
+    "compressible": true,
+    "extensions": ["org"]
+  },
+  "text/x-pascal": {
+    "source": "apache",
+    "extensions": ["p","pas"]
+  },
+  "text/x-processing": {
+    "compressible": true,
+    "extensions": ["pde"]
+  },
+  "text/x-sass": {
+    "extensions": ["sass"]
+  },
+  "text/x-scss": {
+    "extensions": ["scss"]
+  },
+  "text/x-setext": {
+    "source": "apache",
+    "extensions": ["etx"]
+  },
+  "text/x-sfv": {
+    "source": "apache",
+    "extensions": ["sfv"]
+  },
+  "text/x-suse-ymp": {
+    "compressible": true,
+    "extensions": ["ymp"]
+  },
+  "text/x-uuencode": {
+    "source": "apache",
+    "extensions": ["uu"]
+  },
+  "text/x-vcalendar": {
+    "source": "apache",
+    "extensions": ["vcs"]
+  },
+  "text/x-vcard": {
+    "source": "apache",
+    "extensions": ["vcf"]
+  },
+  "text/xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["xml"]
+  },
+  "text/xml-external-parsed-entity": {
+    "source": "iana"
+  },
+  "text/yaml": {
+    "compressible": true,
+    "extensions": ["yaml","yml"]
+  },
+  "video/1d-interleaved-parityfec": {
+    "source": "iana"
+  },
+  "video/3gpp": {
+    "source": "iana",
+    "extensions": ["3gp","3gpp"]
+  },
+  "video/3gpp-tt": {
+    "source": "iana"
+  },
+  "video/3gpp2": {
+    "source": "iana",
+    "extensions": ["3g2"]
+  },
+  "video/av1": {
+    "source": "iana"
+  },
+  "video/bmpeg": {
+    "source": "iana"
+  },
+  "video/bt656": {
+    "source": "iana"
+  },
+  "video/celb": {
+    "source": "iana"
+  },
+  "video/dv": {
+    "source": "iana"
+  },
+  "video/encaprtp": {
+    "source": "iana"
+  },
+  "video/ffv1": {
+    "source": "iana"
+  },
+  "video/flexfec": {
+    "source": "iana"
+  },
+  "video/h261": {
+    "source": "iana",
+    "extensions": ["h261"]
+  },
+  "video/h263": {
+    "source": "iana",
+    "extensions": ["h263"]
+  },
+  "video/h263-1998": {
+    "source": "iana"
+  },
+  "video/h263-2000": {
+    "source": "iana"
+  },
+  "video/h264": {
+    "source": "iana",
+    "extensions": ["h264"]
+  },
+  "video/h264-rcdo": {
+    "source": "iana"
+  },
+  "video/h264-svc": {
+    "source": "iana"
+  },
+  "video/h265": {
+    "source": "iana"
+  },
+  "video/iso.segment": {
+    "source": "iana",
+    "extensions": ["m4s"]
+  },
+  "video/jpeg": {
+    "source": "iana",
+    "extensions": ["jpgv"]
+  },
+  "video/jpeg2000": {
+    "source": "iana"
+  },
+  "video/jpm": {
+    "source": "apache",
+    "extensions": ["jpm","jpgm"]
+  },
+  "video/jxsv": {
+    "source": "iana"
+  },
+  "video/mj2": {
+    "source": "iana",
+    "extensions": ["mj2","mjp2"]
+  },
+  "video/mp1s": {
+    "source": "iana"
+  },
+  "video/mp2p": {
+    "source": "iana"
+  },
+  "video/mp2t": {
+    "source": "iana",
+    "extensions": ["ts"]
+  },
+  "video/mp4": {
+    "source": "iana",
+    "compressible": false,
+    "extensions": ["mp4","mp4v","mpg4"]
+  },
+  "video/mp4v-es": {
+    "source": "iana"
+  },
+  "video/mpeg": {
+    "source": "iana",
+    "compressible": false,
+    "extensions": ["mpeg","mpg","mpe","m1v","m2v"]
+  },
+  "video/mpeg4-generic": {
+    "source": "iana"
+  },
+  "video/mpv": {
+    "source": "iana"
+  },
+  "video/nv": {
+    "source": "iana"
+  },
+  "video/ogg": {
+    "source": "iana",
+    "compressible": false,
+    "extensions": ["ogv"]
+  },
+  "video/parityfec": {
+    "source": "iana"
+  },
+  "video/pointer": {
+    "source": "iana"
+  },
+  "video/quicktime": {
+    "source": "iana",
+    "compressible": false,
+    "extensions": ["qt","mov"]
+  },
+  "video/raptorfec": {
+    "source": "iana"
+  },
+  "video/raw": {
+    "source": "iana"
+  },
+  "video/rtp-enc-aescm128": {
+    "source": "iana"
+  },
+  "video/rtploopback": {
+    "source": "iana"
+  },
+  "video/rtx": {
+    "source": "iana"
+  },
+  "video/scip": {
+    "source": "iana"
+  },
+  "video/smpte291": {
+    "source": "iana"
+  },
+  "video/smpte292m": {
+    "source": "iana"
+  },
+  "video/ulpfec": {
+    "source": "iana"
+  },
+  "video/vc1": {
+    "source": "iana"
+  },
+  "video/vc2": {
+    "source": "iana"
+  },
+  "video/vnd.cctv": {
+    "source": "iana"
+  },
+  "video/vnd.dece.hd": {
+    "source": "iana",
+    "extensions": ["uvh","uvvh"]
+  },
+  "video/vnd.dece.mobile": {
+    "source": "iana",
+    "extensions": ["uvm","uvvm"]
+  },
+  "video/vnd.dece.mp4": {
+    "source": "iana"
+  },
+  "video/vnd.dece.pd": {
+    "source": "iana",
+    "extensions": ["uvp","uvvp"]
+  },
+  "video/vnd.dece.sd": {
+    "source": "iana",
+    "extensions": ["uvs","uvvs"]
+  },
+  "video/vnd.dece.video": {
+    "source": "iana",
+    "extensions": ["uvv","uvvv"]
+  },
+  "video/vnd.directv.mpeg": {
+    "source": "iana"
+  },
+  "video/vnd.directv.mpeg-tts": {
+    "source": "iana"
+  },
+  "video/vnd.dlna.mpeg-tts": {
+    "source": "iana"
+  },
+  "video/vnd.dvb.file": {
+    "source": "iana",
+    "extensions": ["dvb"]
+  },
+  "video/vnd.fvt": {
+    "source": "iana",
+    "extensions": ["fvt"]
+  },
+  "video/vnd.hns.video": {
+    "source": "iana"
+  },
+  "video/vnd.iptvforum.1dparityfec-1010": {
+    "source": "iana"
+  },
+  "video/vnd.iptvforum.1dparityfec-2005": {
+    "source": "iana"
+  },
+  "video/vnd.iptvforum.2dparityfec-1010": {
+    "source": "iana"
+  },
+  "video/vnd.iptvforum.2dparityfec-2005": {
+    "source": "iana"
+  },
+  "video/vnd.iptvforum.ttsavc": {
+    "source": "iana"
+  },
+  "video/vnd.iptvforum.ttsmpeg2": {
+    "source": "iana"
+  },
+  "video/vnd.motorola.video": {
+    "source": "iana"
+  },
+  "video/vnd.motorola.videop": {
+    "source": "iana"
+  },
+  "video/vnd.mpegurl": {
+    "source": "iana",
+    "extensions": ["mxu","m4u"]
+  },
+  "video/vnd.ms-playready.media.pyv": {
+    "source": "iana",
+    "extensions": ["pyv"]
+  },
+  "video/vnd.nokia.interleaved-multimedia": {
+    "source": "iana"
+  },
+  "video/vnd.nokia.mp4vr": {
+    "source": "iana"
+  },
+  "video/vnd.nokia.videovoip": {
+    "source": "iana"
+  },
+  "video/vnd.objectvideo": {
+    "source": "iana"
+  },
+  "video/vnd.radgamettools.bink": {
+    "source": "iana"
+  },
+  "video/vnd.radgamettools.smacker": {
+    "source": "iana"
+  },
+  "video/vnd.sealed.mpeg1": {
+    "source": "iana"
+  },
+  "video/vnd.sealed.mpeg4": {
+    "source": "iana"
+  },
+  "video/vnd.sealed.swf": {
+    "source": "iana"
+  },
+  "video/vnd.sealedmedia.softseal.mov": {
+    "source": "iana"
+  },
+  "video/vnd.uvvu.mp4": {
+    "source": "iana",
+    "extensions": ["uvu","uvvu"]
+  },
+  "video/vnd.vivo": {
+    "source": "iana",
+    "extensions": ["viv"]
+  },
+  "video/vnd.youtube.yt": {
+    "source": "iana"
+  },
+  "video/vp8": {
+    "source": "iana"
+  },
+  "video/vp9": {
+    "source": "iana"
+  },
+  "video/webm": {
+    "source": "apache",
+    "compressible": false,
+    "extensions": ["webm"]
+  },
+  "video/x-f4v": {
+    "source": "apache",
+    "extensions": ["f4v"]
+  },
+  "video/x-fli": {
+    "source": "apache",
+    "extensions": ["fli"]
+  },
+  "video/x-flv": {
+    "source": "apache",
+    "compressible": false,
+    "extensions": ["flv"]
+  },
+  "video/x-m4v": {
+    "source": "apache",
+    "extensions": ["m4v"]
+  },
+  "video/x-matroska": {
+    "source": "apache",
+    "compressible": false,
+    "extensions": ["mkv","mk3d","mks"]
+  },
+  "video/x-mng": {
+    "source": "apache",
+    "extensions": ["mng"]
+  },
+  "video/x-ms-asf": {
+    "source": "apache",
+    "extensions": ["asf","asx"]
+  },
+  "video/x-ms-vob": {
+    "source": "apache",
+    "extensions": ["vob"]
+  },
+  "video/x-ms-wm": {
+    "source": "apache",
+    "extensions": ["wm"]
+  },
+  "video/x-ms-wmv": {
+    "source": "apache",
+    "compressible": false,
+    "extensions": ["wmv"]
+  },
+  "video/x-ms-wmx": {
+    "source": "apache",
+    "extensions": ["wmx"]
+  },
+  "video/x-ms-wvx": {
+    "source": "apache",
+    "extensions": ["wvx"]
+  },
+  "video/x-msvideo": {
+    "source": "apache",
+    "extensions": ["avi"]
+  },
+  "video/x-sgi-movie": {
+    "source": "apache",
+    "extensions": ["movie"]
+  },
+  "video/x-smv": {
+    "source": "apache",
+    "extensions": ["smv"]
+  },
+  "x-conference/x-cooltalk": {
+    "source": "apache",
+    "extensions": ["ice"]
+  },
+  "x-shader/x-fragment": {
+    "compressible": true
+  },
+  "x-shader/x-vertex": {
+    "compressible": true
+  }
+}
diff --git a/backend/node_modules/mime-db/index.js b/backend/node_modules/mime-db/index.js
new file mode 100644
index 0000000..ec2be30
--- /dev/null
+++ b/backend/node_modules/mime-db/index.js
@@ -0,0 +1,12 @@
+/*!
+ * mime-db
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2015-2022 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+/**
+ * Module exports.
+ */
+
+module.exports = require('./db.json')
diff --git a/backend/node_modules/mime-db/package.json b/backend/node_modules/mime-db/package.json
new file mode 100644
index 0000000..32c14b8
--- /dev/null
+++ b/backend/node_modules/mime-db/package.json
@@ -0,0 +1,60 @@
+{
+  "name": "mime-db",
+  "description": "Media Type Database",
+  "version": "1.52.0",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)",
+    "Robert Kieffer <robert@broofa.com> (http://github.com/broofa)"
+  ],
+  "license": "MIT",
+  "keywords": [
+    "mime",
+    "db",
+    "type",
+    "types",
+    "database",
+    "charset",
+    "charsets"
+  ],
+  "repository": "jshttp/mime-db",
+  "devDependencies": {
+    "bluebird": "3.7.2",
+    "co": "4.6.0",
+    "cogent": "1.0.1",
+    "csv-parse": "4.16.3",
+    "eslint": "7.32.0",
+    "eslint-config-standard": "15.0.1",
+    "eslint-plugin-import": "2.25.4",
+    "eslint-plugin-markdown": "2.2.1",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "5.1.1",
+    "eslint-plugin-standard": "4.1.0",
+    "gnode": "0.1.2",
+    "media-typer": "1.1.0",
+    "mocha": "9.2.1",
+    "nyc": "15.1.0",
+    "raw-body": "2.5.0",
+    "stream-to-array": "2.3.0"
+  },
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "README.md",
+    "db.json",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "build": "node scripts/build",
+    "fetch": "node scripts/fetch-apache && gnode scripts/fetch-iana && node scripts/fetch-nginx",
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "update": "npm run fetch && npm run build",
+    "version": "node scripts/version-history.js && git add HISTORY.md"
+  }
+}
diff --git a/backend/node_modules/mime-types/HISTORY.md b/backend/node_modules/mime-types/HISTORY.md
new file mode 100644
index 0000000..c5043b7
--- /dev/null
+++ b/backend/node_modules/mime-types/HISTORY.md
@@ -0,0 +1,397 @@
+2.1.35 / 2022-03-12
+===================
+
+  * deps: mime-db@1.52.0
+    - Add extensions from IANA for more `image/*` types
+    - Add extension `.asc` to `application/pgp-keys`
+    - Add extensions to various XML types
+    - Add new upstream MIME types
+
+2.1.34 / 2021-11-08
+===================
+
+  * deps: mime-db@1.51.0
+    - Add new upstream MIME types
+
+2.1.33 / 2021-10-01
+===================
+
+  * deps: mime-db@1.50.0
+    - Add deprecated iWorks mime types and extensions
+    - Add new upstream MIME types
+
+2.1.32 / 2021-07-27
+===================
+
+  * deps: mime-db@1.49.0
+    - Add extension `.trig` to `application/trig`
+    - Add new upstream MIME types
+
+2.1.31 / 2021-06-01
+===================
+
+  * deps: mime-db@1.48.0
+    - Add extension `.mvt` to `application/vnd.mapbox-vector-tile`
+    - Add new upstream MIME types
+
+2.1.30 / 2021-04-02
+===================
+
+  * deps: mime-db@1.47.0
+    - Add extension `.amr` to `audio/amr`
+    - Remove ambigious extensions from IANA for `application/*+xml` types
+    - Update primary extension to `.es` for `application/ecmascript`
+
+2.1.29 / 2021-02-17
+===================
+
+  * deps: mime-db@1.46.0
+    - Add extension `.amr` to `audio/amr`
+    - Add extension `.m4s` to `video/iso.segment`
+    - Add extension `.opus` to `audio/ogg`
+    - Add new upstream MIME types
+
+2.1.28 / 2021-01-01
+===================
+
+  * deps: mime-db@1.45.0
+    - Add `application/ubjson` with extension `.ubj`
+    - Add `image/avif` with extension `.avif`
+    - Add `image/ktx2` with extension `.ktx2`
+    - Add extension `.dbf` to `application/vnd.dbf`
+    - Add extension `.rar` to `application/vnd.rar`
+    - Add extension `.td` to `application/urc-targetdesc+xml`
+    - Add new upstream MIME types
+    - Fix extension of `application/vnd.apple.keynote` to be `.key`
+
+2.1.27 / 2020-04-23
+===================
+
+  * deps: mime-db@1.44.0
+    - Add charsets from IANA
+    - Add extension `.cjs` to `application/node`
+    - Add new upstream MIME types
+
+2.1.26 / 2020-01-05
+===================
+
+  * deps: mime-db@1.43.0
+    - Add `application/x-keepass2` with extension `.kdbx`
+    - Add extension `.mxmf` to `audio/mobile-xmf`
+    - Add extensions from IANA for `application/*+xml` types
+    - Add new upstream MIME types
+
+2.1.25 / 2019-11-12
+===================
+
+  * deps: mime-db@1.42.0
+    - Add new upstream MIME types
+    - Add `application/toml` with extension `.toml`
+    - Add `image/vnd.ms-dds` with extension `.dds`
+
+2.1.24 / 2019-04-20
+===================
+
+  * deps: mime-db@1.40.0
+    - Add extensions from IANA for `model/*` types
+    - Add `text/mdx` with extension `.mdx`
+
+2.1.23 / 2019-04-17
+===================
+
+  * deps: mime-db@~1.39.0
+    - Add extensions `.siv` and `.sieve` to `application/sieve`
+    - Add new upstream MIME types
+
+2.1.22 / 2019-02-14
+===================
+
+  * deps: mime-db@~1.38.0
+    - Add extension `.nq` to `application/n-quads`
+    - Add extension `.nt` to `application/n-triples`
+    - Add new upstream MIME types
+
+2.1.21 / 2018-10-19
+===================
+
+  * deps: mime-db@~1.37.0
+    - Add extensions to HEIC image types
+    - Add new upstream MIME types
+
+2.1.20 / 2018-08-26
+===================
+
+  * deps: mime-db@~1.36.0
+    - Add Apple file extensions from IANA
+    - Add extensions from IANA for `image/*` types
+    - Add new upstream MIME types
+
+2.1.19 / 2018-07-17
+===================
+
+  * deps: mime-db@~1.35.0
+    - Add extension `.csl` to `application/vnd.citationstyles.style+xml`
+    - Add extension `.es` to `application/ecmascript`
+    - Add extension `.owl` to `application/rdf+xml`
+    - Add new upstream MIME types
+    - Add UTF-8 as default charset for `text/turtle`
+
+2.1.18 / 2018-02-16
+===================
+
+  * deps: mime-db@~1.33.0
+    - Add `application/raml+yaml` with extension `.raml`
+    - Add `application/wasm` with extension `.wasm`
+    - Add `text/shex` with extension `.shex`
+    - Add extensions for JPEG-2000 images
+    - Add extensions from IANA for `message/*` types
+    - Add new upstream MIME types
+    - Update font MIME types
+    - Update `text/hjson` to registered `application/hjson`
+
+2.1.17 / 2017-09-01
+===================
+
+  * deps: mime-db@~1.30.0
+    - Add `application/vnd.ms-outlook`
+    - Add `application/x-arj`
+    - Add extension `.mjs` to `application/javascript`
+    - Add glTF types and extensions
+    - Add new upstream MIME types
+    - Add `text/x-org`
+    - Add VirtualBox MIME types
+    - Fix `source` records for `video/*` types that are IANA
+    - Update `font/opentype` to registered `font/otf`
+
+2.1.16 / 2017-07-24
+===================
+
+  * deps: mime-db@~1.29.0
+    - Add `application/fido.trusted-apps+json`
+    - Add extension `.wadl` to `application/vnd.sun.wadl+xml`
+    - Add extension `.gz` to `application/gzip`
+    - Add new upstream MIME types
+    - Update extensions `.md` and `.markdown` to be `text/markdown`
+
+2.1.15 / 2017-03-23
+===================
+
+  * deps: mime-db@~1.27.0
+    - Add new mime types
+    - Add `image/apng`
+
+2.1.14 / 2017-01-14
+===================
+
+  * deps: mime-db@~1.26.0
+    - Add new mime types
+
+2.1.13 / 2016-11-18
+===================
+
+  * deps: mime-db@~1.25.0
+    - Add new mime types
+
+2.1.12 / 2016-09-18
+===================
+
+  * deps: mime-db@~1.24.0
+    - Add new mime types
+    - Add `audio/mp3`
+
+2.1.11 / 2016-05-01
+===================
+
+  * deps: mime-db@~1.23.0
+    - Add new mime types
+
+2.1.10 / 2016-02-15
+===================
+
+  * deps: mime-db@~1.22.0
+    - Add new mime types
+    - Fix extension of `application/dash+xml`
+    - Update primary extension for `audio/mp4`
+
+2.1.9 / 2016-01-06
+==================
+
+  * deps: mime-db@~1.21.0
+    - Add new mime types
+
+2.1.8 / 2015-11-30
+==================
+
+  * deps: mime-db@~1.20.0
+    - Add new mime types
+
+2.1.7 / 2015-09-20
+==================
+
+  * deps: mime-db@~1.19.0
+    - Add new mime types
+
+2.1.6 / 2015-09-03
+==================
+
+  * deps: mime-db@~1.18.0
+    - Add new mime types
+
+2.1.5 / 2015-08-20
+==================
+
+  * deps: mime-db@~1.17.0
+    - Add new mime types
+
+2.1.4 / 2015-07-30
+==================
+
+  * deps: mime-db@~1.16.0
+    - Add new mime types
+
+2.1.3 / 2015-07-13
+==================
+
+  * deps: mime-db@~1.15.0
+    - Add new mime types
+
+2.1.2 / 2015-06-25
+==================
+
+  * deps: mime-db@~1.14.0
+    - Add new mime types
+
+2.1.1 / 2015-06-08
+==================
+
+  * perf: fix deopt during mapping
+
+2.1.0 / 2015-06-07
+==================
+
+  * Fix incorrectly treating extension-less file name as extension
+    - i.e. `'path/to/json'` will no longer return `application/json`
+  * Fix `.charset(type)` to accept parameters
+  * Fix `.charset(type)` to match case-insensitive
+  * Improve generation of extension to MIME mapping
+  * Refactor internals for readability and no argument reassignment
+  * Prefer `application/*` MIME types from the same source
+  * Prefer any type over `application/octet-stream`
+  * deps: mime-db@~1.13.0
+    - Add nginx as a source
+    - Add new mime types
+
+2.0.14 / 2015-06-06
+===================
+
+  * deps: mime-db@~1.12.0
+    - Add new mime types
+
+2.0.13 / 2015-05-31
+===================
+
+  * deps: mime-db@~1.11.0
+    - Add new mime types
+
+2.0.12 / 2015-05-19
+===================
+
+  * deps: mime-db@~1.10.0
+    - Add new mime types
+
+2.0.11 / 2015-05-05
+===================
+
+  * deps: mime-db@~1.9.1
+    - Add new mime types
+
+2.0.10 / 2015-03-13
+===================
+
+  * deps: mime-db@~1.8.0
+    - Add new mime types
+
+2.0.9 / 2015-02-09
+==================
+
+  * deps: mime-db@~1.7.0
+    - Add new mime types
+    - Community extensions ownership transferred from `node-mime`
+
+2.0.8 / 2015-01-29
+==================
+
+  * deps: mime-db@~1.6.0
+    - Add new mime types
+
+2.0.7 / 2014-12-30
+==================
+
+  * deps: mime-db@~1.5.0
+    - Add new mime types
+    - Fix various invalid MIME type entries
+
+2.0.6 / 2014-12-30
+==================
+
+  * deps: mime-db@~1.4.0
+    - Add new mime types
+    - Fix various invalid MIME type entries
+    - Remove example template MIME types
+
+2.0.5 / 2014-12-29
+==================
+
+  * deps: mime-db@~1.3.1
+    - Fix missing extensions
+
+2.0.4 / 2014-12-10
+==================
+
+  * deps: mime-db@~1.3.0
+    - Add new mime types
+
+2.0.3 / 2014-11-09
+==================
+
+  * deps: mime-db@~1.2.0
+    - Add new mime types
+
+2.0.2 / 2014-09-28
+==================
+
+  * deps: mime-db@~1.1.0
+    - Add new mime types
+    - Update charsets
+
+2.0.1 / 2014-09-07
+==================
+
+  * Support Node.js 0.6
+
+2.0.0 / 2014-09-02
+==================
+
+  * Use `mime-db`
+  * Remove `.define()`
+
+1.0.2 / 2014-08-04
+==================
+
+  * Set charset=utf-8 for `text/javascript`
+
+1.0.1 / 2014-06-24
+==================
+
+  * Add `text/jsx` type
+
+1.0.0 / 2014-05-12
+==================
+
+  * Return `false` for unknown types
+  * Set charset=utf-8 for `application/json`
+
+0.1.0 / 2014-05-02
+==================
+
+  * Initial release
diff --git a/backend/node_modules/mime-types/LICENSE b/backend/node_modules/mime-types/LICENSE
new file mode 100644
index 0000000..0616607
--- /dev/null
+++ b/backend/node_modules/mime-types/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2014 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2015 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/mime-types/README.md b/backend/node_modules/mime-types/README.md
new file mode 100644
index 0000000..48d2fb4
--- /dev/null
+++ b/backend/node_modules/mime-types/README.md
@@ -0,0 +1,113 @@
+# mime-types
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][ci-image]][ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+The ultimate javascript content-type utility.
+
+Similar to [the `mime@1.x` module](https://www.npmjs.com/package/mime), except:
+
+- __No fallbacks.__ Instead of naively returning the first available type,
+  `mime-types` simply returns `false`, so do
+  `var type = mime.lookup('unrecognized') || 'application/octet-stream'`.
+- No `new Mime()` business, so you could do `var lookup = require('mime-types').lookup`.
+- No `.define()` functionality
+- Bug fixes for `.lookup(path)`
+
+Otherwise, the API is compatible with `mime` 1.x.
+
+## Install
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install mime-types
+```
+
+## Adding Types
+
+All mime types are based on [mime-db](https://www.npmjs.com/package/mime-db),
+so open a PR there if you'd like to add mime types.
+
+## API
+
+```js
+var mime = require('mime-types')
+```
+
+All functions return `false` if input is invalid or not found.
+
+### mime.lookup(path)
+
+Lookup the content-type associated with a file.
+
+```js
+mime.lookup('json') // 'application/json'
+mime.lookup('.md') // 'text/markdown'
+mime.lookup('file.html') // 'text/html'
+mime.lookup('folder/file.js') // 'application/javascript'
+mime.lookup('folder/.htaccess') // false
+
+mime.lookup('cats') // false
+```
+
+### mime.contentType(type)
+
+Create a full content-type header given a content-type or extension.
+When given an extension, `mime.lookup` is used to get the matching
+content-type, otherwise the given content-type is used. Then if the
+content-type does not already have a `charset` parameter, `mime.charset`
+is used to get the default charset and add to the returned content-type.
+
+```js
+mime.contentType('markdown') // 'text/x-markdown; charset=utf-8'
+mime.contentType('file.json') // 'application/json; charset=utf-8'
+mime.contentType('text/html') // 'text/html; charset=utf-8'
+mime.contentType('text/html; charset=iso-8859-1') // 'text/html; charset=iso-8859-1'
+
+// from a full path
+mime.contentType(path.extname('/path/to/file.json')) // 'application/json; charset=utf-8'
+```
+
+### mime.extension(type)
+
+Get the default extension for a content-type.
+
+```js
+mime.extension('application/octet-stream') // 'bin'
+```
+
+### mime.charset(type)
+
+Lookup the implied default charset of a content-type.
+
+```js
+mime.charset('text/markdown') // 'UTF-8'
+```
+
+### var type = mime.types[extension]
+
+A map of content-types by extension.
+
+### [extensions...] = mime.extensions[type]
+
+A map of extensions by content-type.
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://badgen.net/github/checks/jshttp/mime-types/master?label=ci
+[ci-url]: https://github.com/jshttp/mime-types/actions/workflows/ci.yml
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/mime-types/master
+[coveralls-url]: https://coveralls.io/r/jshttp/mime-types?branch=master
+[node-version-image]: https://badgen.net/npm/node/mime-types
+[node-version-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/mime-types
+[npm-url]: https://npmjs.org/package/mime-types
+[npm-version-image]: https://badgen.net/npm/v/mime-types
diff --git a/backend/node_modules/mime-types/index.js b/backend/node_modules/mime-types/index.js
new file mode 100644
index 0000000..b9f34d5
--- /dev/null
+++ b/backend/node_modules/mime-types/index.js
@@ -0,0 +1,188 @@
+/*!
+ * mime-types
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var db = require('mime-db')
+var extname = require('path').extname
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var EXTRACT_TYPE_REGEXP = /^\s*([^;\s]*)(?:;|\s|$)/
+var TEXT_TYPE_REGEXP = /^text\//i
+
+/**
+ * Module exports.
+ * @public
+ */
+
+exports.charset = charset
+exports.charsets = { lookup: charset }
+exports.contentType = contentType
+exports.extension = extension
+exports.extensions = Object.create(null)
+exports.lookup = lookup
+exports.types = Object.create(null)
+
+// Populate the extensions/types maps
+populateMaps(exports.extensions, exports.types)
+
+/**
+ * Get the default charset for a MIME type.
+ *
+ * @param {string} type
+ * @return {boolean|string}
+ */
+
+function charset (type) {
+  if (!type || typeof type !== 'string') {
+    return false
+  }
+
+  // TODO: use media-typer
+  var match = EXTRACT_TYPE_REGEXP.exec(type)
+  var mime = match && db[match[1].toLowerCase()]
+
+  if (mime && mime.charset) {
+    return mime.charset
+  }
+
+  // default text/* to utf-8
+  if (match && TEXT_TYPE_REGEXP.test(match[1])) {
+    return 'UTF-8'
+  }
+
+  return false
+}
+
+/**
+ * Create a full Content-Type header given a MIME type or extension.
+ *
+ * @param {string} str
+ * @return {boolean|string}
+ */
+
+function contentType (str) {
+  // TODO: should this even be in this module?
+  if (!str || typeof str !== 'string') {
+    return false
+  }
+
+  var mime = str.indexOf('/') === -1
+    ? exports.lookup(str)
+    : str
+
+  if (!mime) {
+    return false
+  }
+
+  // TODO: use content-type or other module
+  if (mime.indexOf('charset') === -1) {
+    var charset = exports.charset(mime)
+    if (charset) mime += '; charset=' + charset.toLowerCase()
+  }
+
+  return mime
+}
+
+/**
+ * Get the default extension for a MIME type.
+ *
+ * @param {string} type
+ * @return {boolean|string}
+ */
+
+function extension (type) {
+  if (!type || typeof type !== 'string') {
+    return false
+  }
+
+  // TODO: use media-typer
+  var match = EXTRACT_TYPE_REGEXP.exec(type)
+
+  // get extensions
+  var exts = match && exports.extensions[match[1].toLowerCase()]
+
+  if (!exts || !exts.length) {
+    return false
+  }
+
+  return exts[0]
+}
+
+/**
+ * Lookup the MIME type for a file path/extension.
+ *
+ * @param {string} path
+ * @return {boolean|string}
+ */
+
+function lookup (path) {
+  if (!path || typeof path !== 'string') {
+    return false
+  }
+
+  // get the extension ("ext" or ".ext" or full path)
+  var extension = extname('x.' + path)
+    .toLowerCase()
+    .substr(1)
+
+  if (!extension) {
+    return false
+  }
+
+  return exports.types[extension] || false
+}
+
+/**
+ * Populate the extensions and types maps.
+ * @private
+ */
+
+function populateMaps (extensions, types) {
+  // source preference (least -> most)
+  var preference = ['nginx', 'apache', undefined, 'iana']
+
+  Object.keys(db).forEach(function forEachMimeType (type) {
+    var mime = db[type]
+    var exts = mime.extensions
+
+    if (!exts || !exts.length) {
+      return
+    }
+
+    // mime -> extensions
+    extensions[type] = exts
+
+    // extension -> mime
+    for (var i = 0; i < exts.length; i++) {
+      var extension = exts[i]
+
+      if (types[extension]) {
+        var from = preference.indexOf(db[types[extension]].source)
+        var to = preference.indexOf(mime.source)
+
+        if (types[extension] !== 'application/octet-stream' &&
+          (from > to || (from === to && types[extension].substr(0, 12) === 'application/'))) {
+          // skip the remapping
+          continue
+        }
+      }
+
+      // set the extension -> mime
+      types[extension] = type
+    }
+  })
+}
diff --git a/backend/node_modules/mime-types/package.json b/backend/node_modules/mime-types/package.json
new file mode 100644
index 0000000..bbef696
--- /dev/null
+++ b/backend/node_modules/mime-types/package.json
@@ -0,0 +1,44 @@
+{
+  "name": "mime-types",
+  "description": "The ultimate javascript content-type utility.",
+  "version": "2.1.35",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Jeremiah Senkpiel <fishrock123@rocketmail.com> (https://searchbeam.jit.su)",
+    "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)"
+  ],
+  "license": "MIT",
+  "keywords": [
+    "mime",
+    "types"
+  ],
+  "repository": "jshttp/mime-types",
+  "dependencies": {
+    "mime-db": "1.52.0"
+  },
+  "devDependencies": {
+    "eslint": "7.32.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.25.4",
+    "eslint-plugin-markdown": "2.2.1",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "5.2.0",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "9.2.2",
+    "nyc": "15.1.0"
+  },
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec test/test.js",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
+  }
+}
diff --git a/backend/node_modules/mime/.npmignore b/backend/node_modules/mime/.npmignore
new file mode 100644
index 0000000..e69de29
diff --git a/backend/node_modules/mime/CHANGELOG.md b/backend/node_modules/mime/CHANGELOG.md
new file mode 100644
index 0000000..f127535
--- /dev/null
+++ b/backend/node_modules/mime/CHANGELOG.md
@@ -0,0 +1,164 @@
+# Changelog
+
+## v1.6.0 (24/11/2017)
+*No changelog for this release.*
+
+---
+
+## v2.0.4 (24/11/2017)
+- [**closed**] Switch to mime-score module for resolving extension contention issues. [#182](https://github.com/broofa/node-mime/issues/182)
+- [**closed**] Update mime-db to 1.31.0 in v1.x branch [#181](https://github.com/broofa/node-mime/issues/181)
+
+---
+
+## v1.5.0 (22/11/2017)
+- [**closed**] need ES5 version ready in npm package [#179](https://github.com/broofa/node-mime/issues/179)
+- [**closed**] mime-db no trace of iWork - pages / numbers / etc. [#178](https://github.com/broofa/node-mime/issues/178)
+- [**closed**] How it works in brownser ? [#176](https://github.com/broofa/node-mime/issues/176)
+- [**closed**] Missing `./Mime` [#175](https://github.com/broofa/node-mime/issues/175)
+- [**closed**] Vulnerable Regular Expression [#167](https://github.com/broofa/node-mime/issues/167)
+
+---
+
+## v2.0.3 (25/09/2017)
+*No changelog for this release.*
+
+---
+
+## v1.4.1 (25/09/2017)
+- [**closed**] Issue when bundling with webpack [#172](https://github.com/broofa/node-mime/issues/172)
+
+---
+
+## v2.0.2 (15/09/2017)
+- [**V2**] fs.readFileSync is not a function [#165](https://github.com/broofa/node-mime/issues/165)
+- [**closed**] The extension for video/quicktime should map to .mov, not .qt [#164](https://github.com/broofa/node-mime/issues/164)
+- [**V2**] [v2 Feedback request] Mime class API [#163](https://github.com/broofa/node-mime/issues/163)
+- [**V2**] [v2 Feedback request] Resolving conflicts over extensions [#162](https://github.com/broofa/node-mime/issues/162)
+- [**V2**] Allow callers to load module with official, full, or no defined types.  [#161](https://github.com/broofa/node-mime/issues/161)
+- [**V2**] Use "facets" to resolve extension conflicts [#160](https://github.com/broofa/node-mime/issues/160)
+- [**V2**] Remove fs and path dependencies [#152](https://github.com/broofa/node-mime/issues/152)
+- [**V2**] Default content-type should not be application/octet-stream [#139](https://github.com/broofa/node-mime/issues/139)
+- [**V2**] reset mime-types [#124](https://github.com/broofa/node-mime/issues/124)
+- [**V2**] Extensionless paths should return null or false [#113](https://github.com/broofa/node-mime/issues/113)
+
+---
+
+## v2.0.1 (14/09/2017)
+- [**closed**] Changelog for v2.0 does not mention breaking changes [#171](https://github.com/broofa/node-mime/issues/171)
+- [**closed**] MIME breaking with 'class' declaration as it is without 'use strict mode' [#170](https://github.com/broofa/node-mime/issues/170)
+
+---
+
+## v2.0.0 (12/09/2017)
+- [**closed**] woff and woff2 [#168](https://github.com/broofa/node-mime/issues/168)
+
+---
+
+## v1.4.0 (28/08/2017)
+- [**closed**] support for ac3 voc files [#159](https://github.com/broofa/node-mime/issues/159)
+- [**closed**] Help understanding change from application/xml to text/xml [#158](https://github.com/broofa/node-mime/issues/158)
+- [**closed**] no longer able to override mimetype [#157](https://github.com/broofa/node-mime/issues/157)
+- [**closed**] application/vnd.adobe.photoshop [#147](https://github.com/broofa/node-mime/issues/147)
+- [**closed**] Directories should appear as something other than application/octet-stream [#135](https://github.com/broofa/node-mime/issues/135)
+- [**closed**] requested features [#131](https://github.com/broofa/node-mime/issues/131)
+- [**closed**] Make types.json loading optional? [#129](https://github.com/broofa/node-mime/issues/129)
+- [**closed**] Cannot find module './types.json' [#120](https://github.com/broofa/node-mime/issues/120)
+- [**V2**] .wav files show up as "audio/x-wav" instead of "audio/x-wave" [#118](https://github.com/broofa/node-mime/issues/118)
+- [**closed**] Don't be a pain in the ass for node community [#108](https://github.com/broofa/node-mime/issues/108)
+- [**closed**] don't make default_type global [#78](https://github.com/broofa/node-mime/issues/78)
+- [**closed**] mime.extension() fails if the content-type is parameterized [#74](https://github.com/broofa/node-mime/issues/74)
+
+---
+
+## v1.3.6 (11/05/2017)
+- [**closed**] .md should be text/markdown as of March 2016 [#154](https://github.com/broofa/node-mime/issues/154)
+- [**closed**] Error while installing mime [#153](https://github.com/broofa/node-mime/issues/153)
+- [**closed**] application/manifest+json [#149](https://github.com/broofa/node-mime/issues/149)
+- [**closed**] Dynamic adaptive streaming over HTTP (DASH) file extension typo [#141](https://github.com/broofa/node-mime/issues/141)
+- [**closed**] charsets image/png undefined [#140](https://github.com/broofa/node-mime/issues/140)
+- [**closed**] Mime-db dependency out of date [#130](https://github.com/broofa/node-mime/issues/130)
+- [**closed**] how to support plist？ [#126](https://github.com/broofa/node-mime/issues/126)
+- [**closed**] how does .types file format look like? [#123](https://github.com/broofa/node-mime/issues/123)
+- [**closed**] Feature: support for expanding MIME patterns [#121](https://github.com/broofa/node-mime/issues/121)
+- [**closed**] DEBUG_MIME doesn't work [#117](https://github.com/broofa/node-mime/issues/117)
+
+---
+
+## v1.3.4 (06/02/2015)
+*No changelog for this release.*
+
+---
+
+## v1.3.3 (06/02/2015)
+*No changelog for this release.*
+
+---
+
+## v1.3.1 (05/02/2015)
+- [**closed**] Consider adding support for Handlebars .hbs file ending [#111](https://github.com/broofa/node-mime/issues/111)
+- [**closed**] Consider adding support for hjson. [#110](https://github.com/broofa/node-mime/issues/110)
+- [**closed**] Add mime type for Opus audio files [#94](https://github.com/broofa/node-mime/issues/94)
+- [**closed**] Consider making the `Requesting New Types` information more visible [#77](https://github.com/broofa/node-mime/issues/77)
+
+---
+
+## v1.3.0 (05/02/2015)
+- [**closed**] Add common name? [#114](https://github.com/broofa/node-mime/issues/114)
+- [**closed**] application/x-yaml [#104](https://github.com/broofa/node-mime/issues/104)
+- [**closed**] Add mime type for WOFF file format 2.0 [#102](https://github.com/broofa/node-mime/issues/102)
+- [**closed**] application/x-msi for .msi [#99](https://github.com/broofa/node-mime/issues/99)
+- [**closed**] Add mimetype for gettext translation files [#98](https://github.com/broofa/node-mime/issues/98)
+- [**closed**] collaborators [#88](https://github.com/broofa/node-mime/issues/88)
+- [**closed**] getting errot in installation of mime module...any1 can help? [#87](https://github.com/broofa/node-mime/issues/87)
+- [**closed**] should application/json's charset be utf8? [#86](https://github.com/broofa/node-mime/issues/86)
+- [**closed**] Add "license" and "licenses" to package.json [#81](https://github.com/broofa/node-mime/issues/81)
+- [**closed**] lookup with extension-less file on Windows returns wrong type [#68](https://github.com/broofa/node-mime/issues/68)
+
+---
+
+## v1.2.11 (15/08/2013)
+- [**closed**] Update mime.types [#65](https://github.com/broofa/node-mime/issues/65)
+- [**closed**] Publish a new version [#63](https://github.com/broofa/node-mime/issues/63)
+- [**closed**] README should state upfront that "application/octet-stream" is default for unknown extension [#55](https://github.com/broofa/node-mime/issues/55)
+- [**closed**] Suggested improvement to the charset API [#52](https://github.com/broofa/node-mime/issues/52)
+
+---
+
+## v1.2.10 (25/07/2013)
+- [**closed**] Mime type for woff files should be application/font-woff and not application/x-font-woff [#62](https://github.com/broofa/node-mime/issues/62)
+- [**closed**] node.types in conflict with mime.types [#51](https://github.com/broofa/node-mime/issues/51)
+
+---
+
+## v1.2.9 (17/01/2013)
+- [**closed**] Please update "mime" NPM [#49](https://github.com/broofa/node-mime/issues/49)
+- [**closed**] Please add semicolon [#46](https://github.com/broofa/node-mime/issues/46)
+- [**closed**] parse full mime types [#43](https://github.com/broofa/node-mime/issues/43)
+
+---
+
+## v1.2.8 (10/01/2013)
+- [**closed**] /js directory mime is application/javascript. Is it correct? [#47](https://github.com/broofa/node-mime/issues/47)
+- [**closed**] Add mime types for lua code. [#45](https://github.com/broofa/node-mime/issues/45)
+
+---
+
+## v1.2.7 (19/10/2012)
+- [**closed**] cannot install 1.2.7 via npm [#41](https://github.com/broofa/node-mime/issues/41)
+- [**closed**] Transfer ownership to @broofa [#36](https://github.com/broofa/node-mime/issues/36)
+- [**closed**] it's wrong to set charset to UTF-8 for text [#30](https://github.com/broofa/node-mime/issues/30)
+- [**closed**] Allow multiple instances of MIME types container [#27](https://github.com/broofa/node-mime/issues/27)
+
+---
+
+## v1.2.5 (16/02/2012)
+- [**closed**] When looking up a types, check hasOwnProperty [#23](https://github.com/broofa/node-mime/issues/23)
+- [**closed**] Bump version to 1.2.2 [#18](https://github.com/broofa/node-mime/issues/18)
+- [**closed**] No license [#16](https://github.com/broofa/node-mime/issues/16)
+- [**closed**] Some types missing that are used by html5/css3 [#13](https://github.com/broofa/node-mime/issues/13)
+- [**closed**] npm install fails for 1.2.1 [#12](https://github.com/broofa/node-mime/issues/12)
+- [**closed**] image/pjpeg + image/x-png [#10](https://github.com/broofa/node-mime/issues/10)
+- [**closed**] symlink [#8](https://github.com/broofa/node-mime/issues/8)
+- [**closed**] gzip [#2](https://github.com/broofa/node-mime/issues/2)
+- [**closed**] ALL CAPS filenames return incorrect mime type [#1](https://github.com/broofa/node-mime/issues/1)
diff --git a/backend/node_modules/mime/LICENSE b/backend/node_modules/mime/LICENSE
new file mode 100644
index 0000000..d3f46f7
--- /dev/null
+++ b/backend/node_modules/mime/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2010 Benjamin Thomas, Robert Kieffer
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/mime/README.md b/backend/node_modules/mime/README.md
new file mode 100644
index 0000000..506fbe5
--- /dev/null
+++ b/backend/node_modules/mime/README.md
@@ -0,0 +1,90 @@
+# mime
+
+Comprehensive MIME type mapping API based on mime-db module.
+
+## Install
+
+Install with [npm](http://github.com/isaacs/npm):
+
+    npm install mime
+
+## Contributing / Testing
+
+    npm run test
+
+## Command Line
+
+    mime [path_string]
+
+E.g.
+
+    > mime scripts/jquery.js
+    application/javascript
+
+## API - Queries
+
+### mime.lookup(path)
+Get the mime type associated with a file, if no mime type is found `application/octet-stream` is returned. Performs a case-insensitive lookup using the extension in `path` (the substring after the last '/' or '.').  E.g.
+
+```js
+var mime = require('mime');
+
+mime.lookup('/path/to/file.txt');         // => 'text/plain'
+mime.lookup('file.txt');                  // => 'text/plain'
+mime.lookup('.TXT');                      // => 'text/plain'
+mime.lookup('htm');                       // => 'text/html'
+```
+
+### mime.default_type
+Sets the mime type returned when `mime.lookup` fails to find the extension searched for. (Default is `application/octet-stream`.)
+
+### mime.extension(type)
+Get the default extension for `type`
+
+```js
+mime.extension('text/html');                 // => 'html'
+mime.extension('application/octet-stream');  // => 'bin'
+```
+
+### mime.charsets.lookup()
+
+Map mime-type to charset
+
+```js
+mime.charsets.lookup('text/plain');        // => 'UTF-8'
+```
+
+(The logic for charset lookups is pretty rudimentary.  Feel free to suggest improvements.)
+
+## API - Defining Custom Types
+
+Custom type mappings can be added on a per-project basis via the following APIs.
+
+### mime.define()
+
+Add custom mime/extension mappings
+
+```js
+mime.define({
+    'text/x-some-format': ['x-sf', 'x-sft', 'x-sfml'],
+    'application/x-my-type': ['x-mt', 'x-mtt'],
+    // etc ...
+});
+
+mime.lookup('x-sft');                 // => 'text/x-some-format'
+```
+
+The first entry in the extensions array is returned by `mime.extension()`. E.g.
+
+```js
+mime.extension('text/x-some-format'); // => 'x-sf'
+```
+
+### mime.load(filepath)
+
+Load mappings from an Apache ".types" format file
+
+```js
+mime.load('./my_project.types');
+```
+The .types file format is simple -  See the `types` dir for examples.
diff --git a/backend/node_modules/mime/cli.js b/backend/node_modules/mime/cli.js
new file mode 100644
index 0000000..20b1ffe
--- /dev/null
+++ b/backend/node_modules/mime/cli.js
@@ -0,0 +1,8 @@
+#!/usr/bin/env node
+
+var mime = require('./mime.js');
+var file = process.argv[2];
+var type = mime.lookup(file);
+
+process.stdout.write(type + '\n');
+
diff --git a/backend/node_modules/mime/mime.js b/backend/node_modules/mime/mime.js
new file mode 100644
index 0000000..d7efbde
--- /dev/null
+++ b/backend/node_modules/mime/mime.js
@@ -0,0 +1,108 @@
+var path = require('path');
+var fs = require('fs');
+
+function Mime() {
+  // Map of extension -> mime type
+  this.types = Object.create(null);
+
+  // Map of mime type -> extension
+  this.extensions = Object.create(null);
+}
+
+/**
+ * Define mimetype -> extension mappings.  Each key is a mime-type that maps
+ * to an array of extensions associated with the type.  The first extension is
+ * used as the default extension for the type.
+ *
+ * e.g. mime.define({'audio/ogg', ['oga', 'ogg', 'spx']});
+ *
+ * @param map (Object) type definitions
+ */
+Mime.prototype.define = function (map) {
+  for (var type in map) {
+    var exts = map[type];
+    for (var i = 0; i < exts.length; i++) {
+      if (process.env.DEBUG_MIME && this.types[exts[i]]) {
+        console.warn((this._loading || "define()").replace(/.*\//, ''), 'changes "' + exts[i] + '" extension type from ' +
+          this.types[exts[i]] + ' to ' + type);
+      }
+
+      this.types[exts[i]] = type;
+    }
+
+    // Default extension is the first one we encounter
+    if (!this.extensions[type]) {
+      this.extensions[type] = exts[0];
+    }
+  }
+};
+
+/**
+ * Load an Apache2-style ".types" file
+ *
+ * This may be called multiple times (it's expected).  Where files declare
+ * overlapping types/extensions, the last file wins.
+ *
+ * @param file (String) path of file to load.
+ */
+Mime.prototype.load = function(file) {
+  this._loading = file;
+  // Read file and split into lines
+  var map = {},
+      content = fs.readFileSync(file, 'ascii'),
+      lines = content.split(/[\r\n]+/);
+
+  lines.forEach(function(line) {
+    // Clean up whitespace/comments, and split into fields
+    var fields = line.replace(/\s*#.*|^\s*|\s*$/g, '').split(/\s+/);
+    map[fields.shift()] = fields;
+  });
+
+  this.define(map);
+
+  this._loading = null;
+};
+
+/**
+ * Lookup a mime type based on extension
+ */
+Mime.prototype.lookup = function(path, fallback) {
+  var ext = path.replace(/^.*[\.\/\\]/, '').toLowerCase();
+
+  return this.types[ext] || fallback || this.default_type;
+};
+
+/**
+ * Return file extension associated with a mime type
+ */
+Mime.prototype.extension = function(mimeType) {
+  var type = mimeType.match(/^\s*([^;\s]*)(?:;|\s|$)/)[1].toLowerCase();
+  return this.extensions[type];
+};
+
+// Default instance
+var mime = new Mime();
+
+// Define built-in types
+mime.define(require('./types.json'));
+
+// Default type
+mime.default_type = mime.lookup('bin');
+
+//
+// Additional API specific to the default instance
+//
+
+mime.Mime = Mime;
+
+/**
+ * Lookup a charset based on mime type.
+ */
+mime.charsets = {
+  lookup: function(mimeType, fallback) {
+    // Assume text types are utf8
+    return (/^text\/|^application\/(javascript|json)/).test(mimeType) ? 'UTF-8' : fallback;
+  }
+};
+
+module.exports = mime;
diff --git a/backend/node_modules/mime/package.json b/backend/node_modules/mime/package.json
new file mode 100644
index 0000000..6bd24bc
--- /dev/null
+++ b/backend/node_modules/mime/package.json
@@ -0,0 +1,44 @@
+{
+  "author": {
+    "name": "Robert Kieffer",
+    "url": "http://github.com/broofa",
+    "email": "robert@broofa.com"
+  },
+  "bin": {
+    "mime": "cli.js"
+  },
+  "engines": {
+    "node": ">=4"
+  },
+  "contributors": [
+    {
+      "name": "Benjamin Thomas",
+      "url": "http://github.com/bentomas",
+      "email": "benjamin@benjaminthomas.org"
+    }
+  ],
+  "description": "A comprehensive library for mime-type mapping",
+  "license": "MIT",
+  "dependencies": {},
+  "devDependencies": {
+    "github-release-notes": "0.13.1",
+    "mime-db": "1.31.0",
+    "mime-score": "1.1.0"
+  },
+  "scripts": {
+    "prepare": "node src/build.js",
+    "changelog": "gren changelog --tags=all --generate --override",
+    "test": "node src/test.js"
+  },
+  "keywords": [
+    "util",
+    "mime"
+  ],
+  "main": "mime.js",
+  "name": "mime",
+  "repository": {
+    "url": "https://github.com/broofa/node-mime",
+    "type": "git"
+  },
+  "version": "1.6.0"
+}
diff --git a/backend/node_modules/mime/src/build.js b/backend/node_modules/mime/src/build.js
new file mode 100644
index 0000000..4928e48
--- /dev/null
+++ b/backend/node_modules/mime/src/build.js
@@ -0,0 +1,53 @@
+#!/usr/bin/env node
+
+'use strict';
+
+const fs = require('fs');
+const path = require('path');
+const mimeScore = require('mime-score');
+
+let db = require('mime-db');
+let chalk = require('chalk');
+
+const STANDARD_FACET_SCORE = 900;
+
+const byExtension = {};
+
+// Clear out any conflict extensions in mime-db
+for (let type in db) {
+  let entry = db[type];
+  entry.type = type;
+
+  if (!entry.extensions) continue;
+
+  entry.extensions.forEach(ext => {
+    if (ext in byExtension) {
+      const e0 = entry;
+      const e1 = byExtension[ext];
+      e0.pri = mimeScore(e0.type, e0.source);
+      e1.pri = mimeScore(e1.type, e1.source);
+
+      let drop = e0.pri < e1.pri ? e0 : e1;
+      let keep = e0.pri >= e1.pri ? e0 : e1;
+      drop.extensions = drop.extensions.filter(e => e !== ext);
+
+      console.log(`${ext}: Keeping ${chalk.green(keep.type)} (${keep.pri}), dropping ${chalk.red(drop.type)} (${drop.pri})`);
+    }
+    byExtension[ext] = entry;
+  });
+}
+
+function writeTypesFile(types, path) {
+  fs.writeFileSync(path, JSON.stringify(types));
+}
+
+// Segregate into standard and non-standard types based on facet per
+// https://tools.ietf.org/html/rfc6838#section-3.1
+const types = {};
+
+Object.keys(db).sort().forEach(k => {
+  const entry = db[k];
+  types[entry.type] = entry.extensions;
+});
+
+writeTypesFile(types, path.join(__dirname, '..', 'types.json'));
diff --git a/backend/node_modules/mime/src/test.js b/backend/node_modules/mime/src/test.js
new file mode 100644
index 0000000..42958a2
--- /dev/null
+++ b/backend/node_modules/mime/src/test.js
@@ -0,0 +1,60 @@
+/**
+ * Usage: node test.js
+ */
+
+var mime = require('../mime');
+var assert = require('assert');
+var path = require('path');
+
+//
+// Test mime lookups
+//
+
+assert.equal('text/plain', mime.lookup('text.txt'));     // normal file
+assert.equal('text/plain', mime.lookup('TEXT.TXT'));     // uppercase
+assert.equal('text/plain', mime.lookup('dir/text.txt')); // dir + file
+assert.equal('text/plain', mime.lookup('.text.txt'));    // hidden file
+assert.equal('text/plain', mime.lookup('.txt'));         // nameless
+assert.equal('text/plain', mime.lookup('txt'));          // extension-only
+assert.equal('text/plain', mime.lookup('/txt'));         // extension-less ()
+assert.equal('text/plain', mime.lookup('\\txt'));        // Windows, extension-less
+assert.equal('application/octet-stream', mime.lookup('text.nope')); // unrecognized
+assert.equal('fallback', mime.lookup('text.fallback', 'fallback')); // alternate default
+
+//
+// Test extensions
+//
+
+assert.equal('txt', mime.extension(mime.types.text));
+assert.equal('html', mime.extension(mime.types.htm));
+assert.equal('bin', mime.extension('application/octet-stream'));
+assert.equal('bin', mime.extension('application/octet-stream '));
+assert.equal('html', mime.extension(' text/html; charset=UTF-8'));
+assert.equal('html', mime.extension('text/html; charset=UTF-8 '));
+assert.equal('html', mime.extension('text/html; charset=UTF-8'));
+assert.equal('html', mime.extension('text/html ; charset=UTF-8'));
+assert.equal('html', mime.extension('text/html;charset=UTF-8'));
+assert.equal('html', mime.extension('text/Html;charset=UTF-8'));
+assert.equal(undefined, mime.extension('unrecognized'));
+
+//
+// Test node.types lookups
+//
+
+assert.equal('font/woff', mime.lookup('file.woff'));
+assert.equal('application/octet-stream', mime.lookup('file.buffer'));
+// TODO: Uncomment once #157 is resolved
+// assert.equal('audio/mp4', mime.lookup('file.m4a'));
+assert.equal('font/otf', mime.lookup('file.otf'));
+
+//
+// Test charsets
+//
+
+assert.equal('UTF-8', mime.charsets.lookup('text/plain'));
+assert.equal('UTF-8', mime.charsets.lookup(mime.types.js));
+assert.equal('UTF-8', mime.charsets.lookup(mime.types.json));
+assert.equal(undefined, mime.charsets.lookup(mime.types.bin));
+assert.equal('fallback', mime.charsets.lookup('application/octet-stream', 'fallback'));
+
+console.log('\nAll tests passed');
diff --git a/backend/node_modules/mime/types.json b/backend/node_modules/mime/types.json
new file mode 100644
index 0000000..bec78ab
--- /dev/null
+++ b/backend/node_modules/mime/types.json
@@ -0,0 +1 @@
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+	"rules": {
+		"array-element-newline": 0,
+		"complexity": 0,
+		"func-style": [2, "declaration"],
+		"max-lines-per-function": 0,
+		"max-nested-callbacks": 1,
+		"max-statements-per-line": 1,
+		"max-statements": 0,
+		"multiline-comment-style": 0,
+		"no-continue": 1,
+		"no-param-reassign": 1,
+		"no-restricted-syntax": 1,
+		"object-curly-newline": 0,
+	},
+
+	"overrides": [
+		{
+			"files": "test/**",
+			"rules": {
+				"camelcase": 0,
+			},
+		},
+	]
+}
diff --git a/backend/node_modules/minimist/.github/FUNDING.yml b/backend/node_modules/minimist/.github/FUNDING.yml
new file mode 100644
index 0000000..a936622
--- /dev/null
+++ b/backend/node_modules/minimist/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/minimist
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/minimist/.nycrc b/backend/node_modules/minimist/.nycrc
new file mode 100644
index 0000000..55c3d29
--- /dev/null
+++ b/backend/node_modules/minimist/.nycrc
@@ -0,0 +1,14 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"lines": 86,
+	"statements": 85.93,
+	"functions": 82.43,
+	"branches": 76.06,
+	"exclude": [
+		"coverage",
+		"example",
+		"test"
+	]
+}
diff --git a/backend/node_modules/minimist/CHANGELOG.md b/backend/node_modules/minimist/CHANGELOG.md
new file mode 100644
index 0000000..c9a1e15
--- /dev/null
+++ b/backend/node_modules/minimist/CHANGELOG.md
@@ -0,0 +1,298 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.2.8](https://github.com/minimistjs/minimist/compare/v1.2.7...v1.2.8) - 2023-02-09
+
+### Merged
+
+- [Fix] Fix long option followed by single dash [`#17`](https://github.com/minimistjs/minimist/pull/17)
+- [Tests] Remove duplicate test [`#12`](https://github.com/minimistjs/minimist/pull/12)
+- [Fix] opt.string works with multiple aliases [`#10`](https://github.com/minimistjs/minimist/pull/10)
+
+### Fixed
+
+- [Fix] Fix long option followed by single dash (#17) [`#15`](https://github.com/minimistjs/minimist/issues/15)
+- [Tests] Remove duplicate test (#12) [`#8`](https://github.com/minimistjs/minimist/issues/8)
+- [Fix] Fix long option followed by single dash [`#15`](https://github.com/minimistjs/minimist/issues/15)
+- [Fix] opt.string works with multiple aliases (#10) [`#9`](https://github.com/minimistjs/minimist/issues/9)
+- [Fix] Fix handling of short option with non-trivial equals [`#5`](https://github.com/minimistjs/minimist/issues/5)
+- [Tests] Remove duplicate test [`#8`](https://github.com/minimistjs/minimist/issues/8)
+- [Fix] opt.string works with multiple aliases [`#9`](https://github.com/minimistjs/minimist/issues/9)
+
+### Commits
+
+- Merge tag 'v0.2.3' [`a026794`](https://github.com/minimistjs/minimist/commit/a0267947c7870fc5847cf2d437fbe33f392767da)
+- [eslint] fix indentation and whitespace [`5368ca4`](https://github.com/minimistjs/minimist/commit/5368ca4147e974138a54cc0dc4cea8f756546b70)
+- [eslint] fix indentation and whitespace [`e5f5067`](https://github.com/minimistjs/minimist/commit/e5f5067259ceeaf0b098d14bec910f87e58708c7)
+- [eslint] more cleanup [`62fde7d`](https://github.com/minimistjs/minimist/commit/62fde7d935f83417fb046741531a9e2346a36976)
+- [eslint] more cleanup [`36ac5d0`](https://github.com/minimistjs/minimist/commit/36ac5d0d95e4947d074e5737d94814034ca335d1)
+- [meta] add `auto-changelog` [`73923d2`](https://github.com/minimistjs/minimist/commit/73923d223553fca08b1ba77e3fbc2a492862ae4c)
+- [actions] add reusable workflows [`d80727d`](https://github.com/minimistjs/minimist/commit/d80727df77bfa9e631044d7f16368d8f09242c91)
+- [eslint] add eslint; rules to enable later are warnings [`48bc06a`](https://github.com/minimistjs/minimist/commit/48bc06a1b41f00e9cdf183db34f7a51ba70e98d4)
+- [eslint] fix indentation [`34b0f1c`](https://github.com/minimistjs/minimist/commit/34b0f1ccaa45183c3c4f06a91f9b405180a6f982)
+- [readme] rename and add badges [`5df0fe4`](https://github.com/minimistjs/minimist/commit/5df0fe49211bd09a3636f8686a7cb3012c3e98f0)
+- [Dev Deps] switch from `covert` to `nyc` [`a48b128`](https://github.com/minimistjs/minimist/commit/a48b128fdb8d427dfb20a15273f83e38d97bef07)
+- [Dev Deps] update `covert`, `tape`; remove unnecessary `tap` [`f0fb958`](https://github.com/minimistjs/minimist/commit/f0fb958e9a1fe980cdffc436a211b0bda58f621b)
+- [meta] create FUNDING.yml; add `funding` in package.json [`3639e0c`](https://github.com/minimistjs/minimist/commit/3639e0c819359a366387e425ab6eabf4c78d3caa)
+- [meta] use `npmignore` to autogenerate an npmignore file [`be2e038`](https://github.com/minimistjs/minimist/commit/be2e038c342d8333b32f0fde67a0026b79c8150e)
+- Only apps should have lockfiles [`282b570`](https://github.com/minimistjs/minimist/commit/282b570e7489d01b03f2d6d3dabf79cd3e5f84cf)
+- isConstructorOrProto adapted from PR [`ef9153f`](https://github.com/minimistjs/minimist/commit/ef9153fc52b6cea0744b2239921c5dcae4697f11)
+- [Dev Deps] update `@ljharb/eslint-config`, `aud` [`098873c`](https://github.com/minimistjs/minimist/commit/098873c213cdb7c92e55ae1ef5aa1af3a8192a79)
+- [Dev Deps] update `@ljharb/eslint-config`, `aud` [`3124ed3`](https://github.com/minimistjs/minimist/commit/3124ed3e46306301ebb3c834874ce0241555c2c4)
+- [meta] add `safe-publish-latest` [`4b927de`](https://github.com/minimistjs/minimist/commit/4b927de696d561c636b4f43bf49d4597cb36d6d6)
+- [Tests] add `aud` in `posttest` [`b32d9bd`](https://github.com/minimistjs/minimist/commit/b32d9bd0ab340f4e9f8c3a97ff2a4424f25fab8c)
+- [meta] update repo URLs [`f9fdfc0`](https://github.com/minimistjs/minimist/commit/f9fdfc032c54884d9a9996a390c63cd0719bbe1a)
+- [actions] Avoid 0.6 tests due to build failures [`ba92fe6`](https://github.com/minimistjs/minimist/commit/ba92fe6ebbdc0431cca9a2ea8f27beb492f5e4ec)
+- [Dev Deps] update `tape` [`950eaa7`](https://github.com/minimistjs/minimist/commit/950eaa74f112e04d23e9c606c67472c46739b473)
+- [Dev Deps] add missing `npmignore` dev dep [`3226afa`](https://github.com/minimistjs/minimist/commit/3226afaf09e9d127ca369742437fe6e88f752d6b)
+- Merge tag 'v0.2.2' [`980d7ac`](https://github.com/minimistjs/minimist/commit/980d7ac61a0b4bd552711251ac107d506b23e41f)
+
+## [v1.2.7](https://github.com/minimistjs/minimist/compare/v1.2.6...v1.2.7) - 2022-10-10
+
+### Commits
+
+- [meta] add `auto-changelog` [`0ebf4eb`](https://github.com/minimistjs/minimist/commit/0ebf4ebcd5f7787a5524d31a849ef41316b83c3c)
+- [actions] add reusable workflows [`e115b63`](https://github.com/minimistjs/minimist/commit/e115b63fa9d3909f33b00a2db647ff79068388de)
+- [eslint] add eslint; rules to enable later are warnings [`f58745b`](https://github.com/minimistjs/minimist/commit/f58745b9bb84348e1be72af7dbba5840c7c13013)
+- [Dev Deps] switch from `covert` to `nyc` [`ab03356`](https://github.com/minimistjs/minimist/commit/ab033567b9c8b31117cb026dc7f1e592ce455c65)
+- [readme] rename and add badges [`236f4a0`](https://github.com/minimistjs/minimist/commit/236f4a07e4ebe5ee44f1496ec6974991ab293ffd)
+- [meta] create FUNDING.yml; add `funding` in package.json [`783a49b`](https://github.com/minimistjs/minimist/commit/783a49bfd47e8335d3098a8cac75662cf71eb32a)
+- [meta] use `npmignore` to autogenerate an npmignore file [`f81ece6`](https://github.com/minimistjs/minimist/commit/f81ece6aaec2fa14e69ff4f1e0407a8c4e2635a2)
+- Only apps should have lockfiles [`56cad44`](https://github.com/minimistjs/minimist/commit/56cad44c7f879b9bb5ec18fcc349308024a89bfc)
+- [Dev Deps] update `covert`, `tape`; remove unnecessary `tap` [`49c5f9f`](https://github.com/minimistjs/minimist/commit/49c5f9fb7e6a92db9eb340cc679de92fb3aacded)
+- [Tests] add `aud` in `posttest` [`228ae93`](https://github.com/minimistjs/minimist/commit/228ae938f3cd9db9dfd8bd7458b076a7b2aef280)
+- [meta] add `safe-publish-latest` [`01fc23f`](https://github.com/minimistjs/minimist/commit/01fc23f5104f85c75059972e01dd33796ab529ff)
+- [meta] update repo URLs [`6b164c7`](https://github.com/minimistjs/minimist/commit/6b164c7d68e0b6bf32f894699effdfb7c63041dd)
+
+## [v1.2.6](https://github.com/minimistjs/minimist/compare/v1.2.5...v1.2.6) - 2022-03-21
+
+### Commits
+
+- test from prototype pollution PR [`bc8ecee`](https://github.com/minimistjs/minimist/commit/bc8ecee43875261f4f17eb20b1243d3ed15e70eb)
+- isConstructorOrProto adapted from PR [`c2b9819`](https://github.com/minimistjs/minimist/commit/c2b981977fa834b223b408cfb860f933c9811e4d)
+- security notice for additional prototype pollution issue [`ef88b93`](https://github.com/minimistjs/minimist/commit/ef88b9325f77b5ee643ccfc97e2ebda577e4c4e2)
+
+## [v1.2.5](https://github.com/minimistjs/minimist/compare/v1.2.4...v1.2.5) - 2020-03-12
+
+## [v1.2.4](https://github.com/minimistjs/minimist/compare/v1.2.3...v1.2.4) - 2020-03-11
+
+### Commits
+
+- security notice [`4cf1354`](https://github.com/minimistjs/minimist/commit/4cf1354839cb972e38496d35e12f806eea92c11f)
+- additional test for constructor prototype pollution [`1043d21`](https://github.com/minimistjs/minimist/commit/1043d212c3caaf871966e710f52cfdf02f9eea4b)
+
+## [v1.2.3](https://github.com/minimistjs/minimist/compare/v1.2.2...v1.2.3) - 2020-03-10
+
+### Commits
+
+- more failing proto pollution tests [`13c01a5`](https://github.com/minimistjs/minimist/commit/13c01a5327736903704984b7f65616b8476850cc)
+- even more aggressive checks for protocol pollution [`38a4d1c`](https://github.com/minimistjs/minimist/commit/38a4d1caead72ef99e824bb420a2528eec03d9ab)
+
+## [v1.2.2](https://github.com/minimistjs/minimist/compare/v1.2.1...v1.2.2) - 2020-03-10
+
+### Commits
+
+- failing test for protocol pollution [`0efed03`](https://github.com/minimistjs/minimist/commit/0efed0340ec8433638758f7ca0c77cb20a0bfbab)
+- cleanup [`67d3722`](https://github.com/minimistjs/minimist/commit/67d3722413448d00a62963d2d30c34656a92d7e2)
+- console.dir -&gt; console.log [`47acf72`](https://github.com/minimistjs/minimist/commit/47acf72c715a630bf9ea013867f47f1dd69dfc54)
+- don't assign onto __proto__ [`63e7ed0`](https://github.com/minimistjs/minimist/commit/63e7ed05aa4b1889ec2f3b196426db4500cbda94)
+
+## [v1.2.1](https://github.com/minimistjs/minimist/compare/v1.2.0...v1.2.1) - 2020-03-10
+
+### Merged
+
+- move the `opts['--']` example back where it belongs [`#63`](https://github.com/minimistjs/minimist/pull/63)
+
+### Commits
+
+- add test [`6be5dae`](https://github.com/minimistjs/minimist/commit/6be5dae35a32a987bcf4137fcd6c19c5200ee909)
+- fix bad boolean regexp [`ac3fc79`](https://github.com/minimistjs/minimist/commit/ac3fc796e63b95128fdbdf67ea7fad71bd59aa76)
+
+## [v1.2.0](https://github.com/minimistjs/minimist/compare/v1.1.3...v1.2.0) - 2015-08-24
+
+### Commits
+
+- failing -k=v short test [`63416b8`](https://github.com/minimistjs/minimist/commit/63416b8cd1d0d70e4714564cce465a36e4dd26d7)
+- kv short fix [`6bbe145`](https://github.com/minimistjs/minimist/commit/6bbe14529166245e86424f220a2321442fe88dc3)
+- failing kv short test [`f72ab7f`](https://github.com/minimistjs/minimist/commit/f72ab7f4572adc52902c9b6873cc969192f01b10)
+- fixed kv test [`f5a48c3`](https://github.com/minimistjs/minimist/commit/f5a48c3e50e40ca54f00c8e84de4b4d6e9897fa8)
+- enforce space between arg key and value [`86b321a`](https://github.com/minimistjs/minimist/commit/86b321affe648a8e016c095a4f0efa9d9074f502)
+
+## [v1.1.3](https://github.com/minimistjs/minimist/compare/v1.1.2...v1.1.3) - 2015-08-06
+
+### Commits
+
+- add failing test - boolean alias array [`0fa3c5b`](https://github.com/minimistjs/minimist/commit/0fa3c5b3dd98551ddecf5392831b4c21211743fc)
+- fix boolean values with multiple aliases [`9c0a6e7`](https://github.com/minimistjs/minimist/commit/9c0a6e7de25a273b11bbf9a7464f0bd833779795)
+
+## [v1.1.2](https://github.com/minimistjs/minimist/compare/v1.1.1...v1.1.2) - 2015-07-22
+
+### Commits
+
+- Convert boolean arguments to boolean values [`8f3dc27`](https://github.com/minimistjs/minimist/commit/8f3dc27cf833f1d54671b6d0bcb55c2fe19672a9)
+- use non-ancient npm, node 0.12 and iojs [`61ed1d0`](https://github.com/minimistjs/minimist/commit/61ed1d034b9ec7282764ce76f3992b1a0b4906ae)
+- an older npm for 0.8 [`25cf778`](https://github.com/minimistjs/minimist/commit/25cf778b1220e7838a526832ad6972f75244054f)
+
+## [v1.1.1](https://github.com/minimistjs/minimist/compare/v1.1.0...v1.1.1) - 2015-03-10
+
+### Commits
+
+- check that they type of a value is a boolean, not just that it is currently set to a boolean [`6863198`](https://github.com/minimistjs/minimist/commit/6863198e36139830ff1f20ffdceaddd93f2c1db9)
+- upgrade tape, fix type issues from old tape version [`806712d`](https://github.com/minimistjs/minimist/commit/806712df91604ed02b8e39aa372b84aea659ee34)
+- test for setting a boolean to a null default [`8c444fe`](https://github.com/minimistjs/minimist/commit/8c444fe89384ded7d441c120915ea60620b01dd3)
+- if the previous value was a boolean, without an default (or with an alias) don't make an array either [`e5f419a`](https://github.com/minimistjs/minimist/commit/e5f419a3b5b3bc3f9e5ac71b7040621af70ed2dd)
+
+## [v1.1.0](https://github.com/minimistjs/minimist/compare/v1.0.0...v1.1.0) - 2014-08-10
+
+### Commits
+
+- add support for handling "unknown" options not registered with the parser. [`6f3cc5d`](https://github.com/minimistjs/minimist/commit/6f3cc5d4e84524932a6ef2ce3592acc67cdd4383)
+- reformat package.json [`02ed371`](https://github.com/minimistjs/minimist/commit/02ed37115194d3697ff358e8e25e5e66bab1d9f8)
+- coverage script [`e5531ba`](https://github.com/minimistjs/minimist/commit/e5531ba0479da3b8138d3d8cac545d84ccb1c8df)
+- extra fn to get 100% coverage again [`a6972da`](https://github.com/minimistjs/minimist/commit/a6972da89e56bf77642f8ec05a13b6558db93498)
+
+## [v1.0.0](https://github.com/minimistjs/minimist/compare/v0.2.3...v1.0.0) - 2014-08-10
+
+### Commits
+
+- added stopEarly option [`471c7e4`](https://github.com/minimistjs/minimist/commit/471c7e4a7e910fc7ad8f9df850a186daf32c64e9)
+- fix list [`fef6ae7`](https://github.com/minimistjs/minimist/commit/fef6ae79c38b9dc1c49569abb7cd04eb965eac5e)
+
+## [v0.2.3](https://github.com/minimistjs/minimist/compare/v0.2.2...v0.2.3) - 2023-02-09
+
+### Merged
+
+- [Fix] Fix long option followed by single dash [`#17`](https://github.com/minimistjs/minimist/pull/17)
+- [Tests] Remove duplicate test [`#12`](https://github.com/minimistjs/minimist/pull/12)
+- [Fix] opt.string works with multiple aliases [`#10`](https://github.com/minimistjs/minimist/pull/10)
+
+### Fixed
+
+- [Fix] Fix long option followed by single dash (#17) [`#15`](https://github.com/minimistjs/minimist/issues/15)
+- [Tests] Remove duplicate test (#12) [`#8`](https://github.com/minimistjs/minimist/issues/8)
+- [Fix] opt.string works with multiple aliases (#10) [`#9`](https://github.com/minimistjs/minimist/issues/9)
+
+### Commits
+
+- [eslint] fix indentation and whitespace [`e5f5067`](https://github.com/minimistjs/minimist/commit/e5f5067259ceeaf0b098d14bec910f87e58708c7)
+- [eslint] more cleanup [`36ac5d0`](https://github.com/minimistjs/minimist/commit/36ac5d0d95e4947d074e5737d94814034ca335d1)
+- [eslint] fix indentation [`34b0f1c`](https://github.com/minimistjs/minimist/commit/34b0f1ccaa45183c3c4f06a91f9b405180a6f982)
+- isConstructorOrProto adapted from PR [`ef9153f`](https://github.com/minimistjs/minimist/commit/ef9153fc52b6cea0744b2239921c5dcae4697f11)
+- [Dev Deps] update `@ljharb/eslint-config`, `aud` [`098873c`](https://github.com/minimistjs/minimist/commit/098873c213cdb7c92e55ae1ef5aa1af3a8192a79)
+- [Dev Deps] add missing `npmignore` dev dep [`3226afa`](https://github.com/minimistjs/minimist/commit/3226afaf09e9d127ca369742437fe6e88f752d6b)
+
+## [v0.2.2](https://github.com/minimistjs/minimist/compare/v0.2.1...v0.2.2) - 2022-10-10
+
+### Commits
+
+- [meta] add `auto-changelog` [`73923d2`](https://github.com/minimistjs/minimist/commit/73923d223553fca08b1ba77e3fbc2a492862ae4c)
+- [actions] add reusable workflows [`d80727d`](https://github.com/minimistjs/minimist/commit/d80727df77bfa9e631044d7f16368d8f09242c91)
+- [eslint] add eslint; rules to enable later are warnings [`48bc06a`](https://github.com/minimistjs/minimist/commit/48bc06a1b41f00e9cdf183db34f7a51ba70e98d4)
+- [readme] rename and add badges [`5df0fe4`](https://github.com/minimistjs/minimist/commit/5df0fe49211bd09a3636f8686a7cb3012c3e98f0)
+- [Dev Deps] switch from `covert` to `nyc` [`a48b128`](https://github.com/minimistjs/minimist/commit/a48b128fdb8d427dfb20a15273f83e38d97bef07)
+- [Dev Deps] update `covert`, `tape`; remove unnecessary `tap` [`f0fb958`](https://github.com/minimistjs/minimist/commit/f0fb958e9a1fe980cdffc436a211b0bda58f621b)
+- [meta] create FUNDING.yml; add `funding` in package.json [`3639e0c`](https://github.com/minimistjs/minimist/commit/3639e0c819359a366387e425ab6eabf4c78d3caa)
+- [meta] use `npmignore` to autogenerate an npmignore file [`be2e038`](https://github.com/minimistjs/minimist/commit/be2e038c342d8333b32f0fde67a0026b79c8150e)
+- Only apps should have lockfiles [`282b570`](https://github.com/minimistjs/minimist/commit/282b570e7489d01b03f2d6d3dabf79cd3e5f84cf)
+- [meta] add `safe-publish-latest` [`4b927de`](https://github.com/minimistjs/minimist/commit/4b927de696d561c636b4f43bf49d4597cb36d6d6)
+- [Tests] add `aud` in `posttest` [`b32d9bd`](https://github.com/minimistjs/minimist/commit/b32d9bd0ab340f4e9f8c3a97ff2a4424f25fab8c)
+- [meta] update repo URLs [`f9fdfc0`](https://github.com/minimistjs/minimist/commit/f9fdfc032c54884d9a9996a390c63cd0719bbe1a)
+
+## [v0.2.1](https://github.com/minimistjs/minimist/compare/v0.2.0...v0.2.1) - 2020-03-12
+
+## [v0.2.0](https://github.com/minimistjs/minimist/compare/v0.1.0...v0.2.0) - 2014-06-19
+
+### Commits
+
+- support all-boolean mode [`450a97f`](https://github.com/minimistjs/minimist/commit/450a97f6e2bc85c7a4a13185c19a818d9a5ebe69)
+
+## [v0.1.0](https://github.com/minimistjs/minimist/compare/v0.0.10...v0.1.0) - 2014-05-12
+
+### Commits
+
+- Provide a mechanism to segregate -- arguments [`ce4a1e6`](https://github.com/minimistjs/minimist/commit/ce4a1e63a7e8d5ab88d2a3768adefa6af98a445a)
+- documented argv['--'] [`14db0e6`](https://github.com/minimistjs/minimist/commit/14db0e6dbc6d2b9e472adaa54dad7004b364634f)
+- Adding a test-case for notFlags segregation [`715c1e3`](https://github.com/minimistjs/minimist/commit/715c1e3714be223f998f6c537af6b505f0236c16)
+
+## [v0.0.10](https://github.com/minimistjs/minimist/compare/v0.0.9...v0.0.10) - 2014-05-11
+
+### Commits
+
+- dedicated boolean test [`46e448f`](https://github.com/minimistjs/minimist/commit/46e448f9f513cfeb2bcc8b688b9b47ba1e515c2b)
+- dedicated num test [`9bf2d36`](https://github.com/minimistjs/minimist/commit/9bf2d36f1d3b8795be90b8f7de0a937f098aa394)
+- aliased values treated as strings [`1ab743b`](https://github.com/minimistjs/minimist/commit/1ab743bad4484d69f1259bed42f9531de01119de)
+- cover the case of already numbers, at 100% coverage [`b2bb044`](https://github.com/minimistjs/minimist/commit/b2bb04436599d77a2ce029e8e555e25b3aa55d13)
+- another test for higher coverage [`3662624`](https://github.com/minimistjs/minimist/commit/3662624be976d5489d486a856849c048d13be903)
+
+## [v0.0.9](https://github.com/minimistjs/minimist/compare/v0.0.8...v0.0.9) - 2014-05-08
+
+### Commits
+
+- Eliminate `longest` fn. [`824f642`](https://github.com/minimistjs/minimist/commit/824f642038d1b02ede68b6261d1d65163390929a)
+
+## [v0.0.8](https://github.com/minimistjs/minimist/compare/v0.0.7...v0.0.8) - 2014-02-20
+
+### Commits
+
+- return '' if flag is string and empty [`fa63ed4`](https://github.com/minimistjs/minimist/commit/fa63ed4651a4ef4eefddce34188e0d98d745a263)
+- handle joined single letters [`66c248f`](https://github.com/minimistjs/minimist/commit/66c248f0241d4d421d193b022e9e365f11178534)
+
+## [v0.0.7](https://github.com/minimistjs/minimist/compare/v0.0.6...v0.0.7) - 2014-02-08
+
+### Commits
+
+- another swap of .test for .match [`d1da408`](https://github.com/minimistjs/minimist/commit/d1da40819acbe846d89a5c02721211e3c1260dde)
+
+## [v0.0.6](https://github.com/minimistjs/minimist/compare/v0.0.5...v0.0.6) - 2014-02-08
+
+### Commits
+
+- use .test() instead of .match() to not crash on non-string values in the arguments array [`7e0d1ad`](https://github.com/minimistjs/minimist/commit/7e0d1add8c9e5b9b20a4d3d0f9a94d824c578da1)
+
+## [v0.0.5](https://github.com/minimistjs/minimist/compare/v0.0.4...v0.0.5) - 2013-09-18
+
+### Commits
+
+- Improve '--' handling. [`b11822c`](https://github.com/minimistjs/minimist/commit/b11822c09cc9d2460f30384d12afc0b953c037a4)
+
+## [v0.0.4](https://github.com/minimistjs/minimist/compare/v0.0.3...v0.0.4) - 2013-09-17
+
+## [v0.0.3](https://github.com/minimistjs/minimist/compare/v0.0.2...v0.0.3) - 2013-09-12
+
+### Commits
+
+- failing test for single dash preceeding a double dash [`b465514`](https://github.com/minimistjs/minimist/commit/b465514b82c9ae28972d714facd951deb2ad762b)
+- fix for the dot test [`6a095f1`](https://github.com/minimistjs/minimist/commit/6a095f1d364c8fab2d6753d2291a0649315d297a)
+
+## [v0.0.2](https://github.com/minimistjs/minimist/compare/v0.0.1...v0.0.2) - 2013-08-28
+
+### Commits
+
+- allow dotted aliases & defaults [`321c33e`](https://github.com/minimistjs/minimist/commit/321c33e755485faaeb44eeb1c05d33b2e0a5a7c4)
+- use a better version of ff [`e40f611`](https://github.com/minimistjs/minimist/commit/e40f61114cf7be6f7947f7b3eed345853a67dbbb)
+
+## [v0.0.1](https://github.com/minimistjs/minimist/compare/v0.0.0...v0.0.1) - 2013-06-25
+
+### Commits
+
+- remove trailing commas [`6ff0fa0`](https://github.com/minimistjs/minimist/commit/6ff0fa055064f15dbe06d50b89d5173a6796e1db)
+
+## v0.0.0 - 2013-06-25
+
+### Commits
+
+- half of the parse test ported [`3079326`](https://github.com/minimistjs/minimist/commit/307932601325087de6cf94188eb798ffc4f3088a)
+- stripped down code and a passing test from optimist [`7cced88`](https://github.com/minimistjs/minimist/commit/7cced88d82e399d1a03ed23eb667f04d3f320d10)
+- ported parse tests completely over [`9448754`](https://github.com/minimistjs/minimist/commit/944875452e0820df6830b1408c26a0f7d3e1db04)
+- docs, package.json [`a5bf46a`](https://github.com/minimistjs/minimist/commit/a5bf46ac9bb3bd114a9c340276c62c1091e538d5)
+- move more short tests into short.js [`503edb5`](https://github.com/minimistjs/minimist/commit/503edb5c41d89c0d40831ee517154fc13b0f18b9)
+- default bool test was wrong, not the code [`1b9f5db`](https://github.com/minimistjs/minimist/commit/1b9f5db4741b49962846081b68518de824992097)
+- passing long tests ripped out of parse.js [`7972c4a`](https://github.com/minimistjs/minimist/commit/7972c4aff1f4803079e1668006658e2a761a0428)
+- badges [`84c0370`](https://github.com/minimistjs/minimist/commit/84c037063664d42878aace715fe6572ce01b6f3b)
+- all the tests now ported, some failures [`64239ed`](https://github.com/minimistjs/minimist/commit/64239edfe92c711c4eb0da254fcdfad2a5fdb605)
+- failing short test [`f8a5341`](https://github.com/minimistjs/minimist/commit/f8a534112dd1138d2fad722def56a848480c446f)
+- fixed the numeric test [`6b034f3`](https://github.com/minimistjs/minimist/commit/6b034f37c79342c60083ed97fd222e16928aac51)
diff --git a/backend/node_modules/minimist/LICENSE b/backend/node_modules/minimist/LICENSE
new file mode 100644
index 0000000..ee27ba4
--- /dev/null
+++ b/backend/node_modules/minimist/LICENSE
@@ -0,0 +1,18 @@
+This software is released under the MIT license:
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/minimist/README.md b/backend/node_modules/minimist/README.md
new file mode 100644
index 0000000..74da323
--- /dev/null
+++ b/backend/node_modules/minimist/README.md
@@ -0,0 +1,121 @@
+# minimist <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+parse argument options
+
+This module is the guts of optimist's argument parser without all the
+fanciful decoration.
+
+# example
+
+``` js
+var argv = require('minimist')(process.argv.slice(2));
+console.log(argv);
+```
+
+```
+$ node example/parse.js -a beep -b boop
+{ _: [], a: 'beep', b: 'boop' }
+```
+
+```
+$ node example/parse.js -x 3 -y 4 -n5 -abc --beep=boop foo bar baz
+{
+	_: ['foo', 'bar', 'baz'],
+	x: 3,
+	y: 4,
+	n: 5,
+	a: true,
+	b: true,
+	c: true,
+	beep: 'boop'
+}
+```
+
+# security
+
+Previous versions had a prototype pollution bug that could cause privilege
+escalation in some circumstances when handling untrusted user input.
+
+Please use version 1.2.6 or later:
+
+* https://security.snyk.io/vuln/SNYK-JS-MINIMIST-2429795 (version <=1.2.5)
+* https://snyk.io/vuln/SNYK-JS-MINIMIST-559764 (version <=1.2.3)
+
+# methods
+
+``` js
+var parseArgs = require('minimist')
+```
+
+## var argv = parseArgs(args, opts={})
+
+Return an argument object `argv` populated with the array arguments from `args`.
+
+`argv._` contains all the arguments that didn't have an option associated with
+them.
+
+Numeric-looking arguments will be returned as numbers unless `opts.string` or
+`opts.boolean` is set for that argument name.
+
+Any arguments after `'--'` will not be parsed and will end up in `argv._`.
+
+options can be:
+
+* `opts.string` - a string or array of strings argument names to always treat as
+strings
+* `opts.boolean` - a boolean, string or array of strings to always treat as
+booleans. if `true` will treat all double hyphenated arguments without equal signs
+as boolean (e.g. affects `--foo`, not `-f` or `--foo=bar`)
+* `opts.alias` - an object mapping string names to strings or arrays of string
+argument names to use as aliases
+* `opts.default` - an object mapping string argument names to default values
+* `opts.stopEarly` - when true, populate `argv._` with everything after the
+first non-option
+* `opts['--']` - when true, populate `argv._` with everything before the `--`
+and `argv['--']` with everything after the `--`. Here's an example:
+
+  ```
+  > require('./')('one two three -- four five --six'.split(' '), { '--': true })
+  {
+    _: ['one', 'two', 'three'],
+    '--': ['four', 'five', '--six']
+  }
+  ```
+
+  Note that with `opts['--']` set, parsing for arguments still stops after the
+  `--`.
+
+* `opts.unknown` - a function which is invoked with a command line parameter not
+defined in the `opts` configuration object. If the function returns `false`, the
+unknown option is not added to `argv`.
+
+# install
+
+With [npm](https://npmjs.org) do:
+
+```
+npm install minimist
+```
+
+# license
+
+MIT
+
+[package-url]: https://npmjs.org/package/minimist
+[npm-version-svg]: https://versionbadg.es/minimistjs/minimist.svg
+[npm-badge-png]: https://nodei.co/npm/minimist.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/minimist.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/minimist.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=minimist
+[codecov-image]: https://codecov.io/gh/minimistjs/minimist/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/minimistjs/minimist/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/minimistjs/minimist
+[actions-url]: https://github.com/minimistjs/minimist/actions
diff --git a/backend/node_modules/minimist/example/parse.js b/backend/node_modules/minimist/example/parse.js
new file mode 100644
index 0000000..9d90ffb
--- /dev/null
+++ b/backend/node_modules/minimist/example/parse.js
@@ -0,0 +1,4 @@
+'use strict';
+
+var argv = require('../')(process.argv.slice(2));
+console.log(argv);
diff --git a/backend/node_modules/minimist/index.js b/backend/node_modules/minimist/index.js
new file mode 100644
index 0000000..f020f39
--- /dev/null
+++ b/backend/node_modules/minimist/index.js
@@ -0,0 +1,263 @@
+'use strict';
+
+function hasKey(obj, keys) {
+	var o = obj;
+	keys.slice(0, -1).forEach(function (key) {
+		o = o[key] || {};
+	});
+
+	var key = keys[keys.length - 1];
+	return key in o;
+}
+
+function isNumber(x) {
+	if (typeof x === 'number') { return true; }
+	if ((/^0x[0-9a-f]+$/i).test(x)) { return true; }
+	return (/^[-+]?(?:\d+(?:\.\d*)?|\.\d+)(e[-+]?\d+)?$/).test(x);
+}
+
+function isConstructorOrProto(obj, key) {
+	return (key === 'constructor' && typeof obj[key] === 'function') || key === '__proto__';
+}
+
+module.exports = function (args, opts) {
+	if (!opts) { opts = {}; }
+
+	var flags = {
+		bools: {},
+		strings: {},
+		unknownFn: null,
+	};
+
+	if (typeof opts.unknown === 'function') {
+		flags.unknownFn = opts.unknown;
+	}
+
+	if (typeof opts.boolean === 'boolean' && opts.boolean) {
+		flags.allBools = true;
+	} else {
+		[].concat(opts.boolean).filter(Boolean).forEach(function (key) {
+			flags.bools[key] = true;
+		});
+	}
+
+	var aliases = {};
+
+	function aliasIsBoolean(key) {
+		return aliases[key].some(function (x) {
+			return flags.bools[x];
+		});
+	}
+
+	Object.keys(opts.alias || {}).forEach(function (key) {
+		aliases[key] = [].concat(opts.alias[key]);
+		aliases[key].forEach(function (x) {
+			aliases[x] = [key].concat(aliases[key].filter(function (y) {
+				return x !== y;
+			}));
+		});
+	});
+
+	[].concat(opts.string).filter(Boolean).forEach(function (key) {
+		flags.strings[key] = true;
+		if (aliases[key]) {
+			[].concat(aliases[key]).forEach(function (k) {
+				flags.strings[k] = true;
+			});
+		}
+	});
+
+	var defaults = opts.default || {};
+
+	var argv = { _: [] };
+
+	function argDefined(key, arg) {
+		return (flags.allBools && (/^--[^=]+$/).test(arg))
+			|| flags.strings[key]
+			|| flags.bools[key]
+			|| aliases[key];
+	}
+
+	function setKey(obj, keys, value) {
+		var o = obj;
+		for (var i = 0; i < keys.length - 1; i++) {
+			var key = keys[i];
+			if (isConstructorOrProto(o, key)) { return; }
+			if (o[key] === undefined) { o[key] = {}; }
+			if (
+				o[key] === Object.prototype
+				|| o[key] === Number.prototype
+				|| o[key] === String.prototype
+			) {
+				o[key] = {};
+			}
+			if (o[key] === Array.prototype) { o[key] = []; }
+			o = o[key];
+		}
+
+		var lastKey = keys[keys.length - 1];
+		if (isConstructorOrProto(o, lastKey)) { return; }
+		if (
+			o === Object.prototype
+			|| o === Number.prototype
+			|| o === String.prototype
+		) {
+			o = {};
+		}
+		if (o === Array.prototype) { o = []; }
+		if (o[lastKey] === undefined || flags.bools[lastKey] || typeof o[lastKey] === 'boolean') {
+			o[lastKey] = value;
+		} else if (Array.isArray(o[lastKey])) {
+			o[lastKey].push(value);
+		} else {
+			o[lastKey] = [o[lastKey], value];
+		}
+	}
+
+	function setArg(key, val, arg) {
+		if (arg && flags.unknownFn && !argDefined(key, arg)) {
+			if (flags.unknownFn(arg) === false) { return; }
+		}
+
+		var value = !flags.strings[key] && isNumber(val)
+			? Number(val)
+			: val;
+		setKey(argv, key.split('.'), value);
+
+		(aliases[key] || []).forEach(function (x) {
+			setKey(argv, x.split('.'), value);
+		});
+	}
+
+	Object.keys(flags.bools).forEach(function (key) {
+		setArg(key, defaults[key] === undefined ? false : defaults[key]);
+	});
+
+	var notFlags = [];
+
+	if (args.indexOf('--') !== -1) {
+		notFlags = args.slice(args.indexOf('--') + 1);
+		args = args.slice(0, args.indexOf('--'));
+	}
+
+	for (var i = 0; i < args.length; i++) {
+		var arg = args[i];
+		var key;
+		var next;
+
+		if ((/^--.+=/).test(arg)) {
+			// Using [\s\S] instead of . because js doesn't support the
+			// 'dotall' regex modifier. See:
+			// http://stackoverflow.com/a/1068308/13216
+			var m = arg.match(/^--([^=]+)=([\s\S]*)$/);
+			key = m[1];
+			var value = m[2];
+			if (flags.bools[key]) {
+				value = value !== 'false';
+			}
+			setArg(key, value, arg);
+		} else if ((/^--no-.+/).test(arg)) {
+			key = arg.match(/^--no-(.+)/)[1];
+			setArg(key, false, arg);
+		} else if ((/^--.+/).test(arg)) {
+			key = arg.match(/^--(.+)/)[1];
+			next = args[i + 1];
+			if (
+				next !== undefined
+				&& !(/^(-|--)[^-]/).test(next)
+				&& !flags.bools[key]
+				&& !flags.allBools
+				&& (aliases[key] ? !aliasIsBoolean(key) : true)
+			) {
+				setArg(key, next, arg);
+				i += 1;
+			} else if ((/^(true|false)$/).test(next)) {
+				setArg(key, next === 'true', arg);
+				i += 1;
+			} else {
+				setArg(key, flags.strings[key] ? '' : true, arg);
+			}
+		} else if ((/^-[^-]+/).test(arg)) {
+			var letters = arg.slice(1, -1).split('');
+
+			var broken = false;
+			for (var j = 0; j < letters.length; j++) {
+				next = arg.slice(j + 2);
+
+				if (next === '-') {
+					setArg(letters[j], next, arg);
+					continue;
+				}
+
+				if ((/[A-Za-z]/).test(letters[j]) && next[0] === '=') {
+					setArg(letters[j], next.slice(1), arg);
+					broken = true;
+					break;
+				}
+
+				if (
+					(/[A-Za-z]/).test(letters[j])
+					&& (/-?\d+(\.\d*)?(e-?\d+)?$/).test(next)
+				) {
+					setArg(letters[j], next, arg);
+					broken = true;
+					break;
+				}
+
+				if (letters[j + 1] && letters[j + 1].match(/\W/)) {
+					setArg(letters[j], arg.slice(j + 2), arg);
+					broken = true;
+					break;
+				} else {
+					setArg(letters[j], flags.strings[letters[j]] ? '' : true, arg);
+				}
+			}
+
+			key = arg.slice(-1)[0];
+			if (!broken && key !== '-') {
+				if (
+					args[i + 1]
+					&& !(/^(-|--)[^-]/).test(args[i + 1])
+					&& !flags.bools[key]
+					&& (aliases[key] ? !aliasIsBoolean(key) : true)
+				) {
+					setArg(key, args[i + 1], arg);
+					i += 1;
+				} else if (args[i + 1] && (/^(true|false)$/).test(args[i + 1])) {
+					setArg(key, args[i + 1] === 'true', arg);
+					i += 1;
+				} else {
+					setArg(key, flags.strings[key] ? '' : true, arg);
+				}
+			}
+		} else {
+			if (!flags.unknownFn || flags.unknownFn(arg) !== false) {
+				argv._.push(flags.strings._ || !isNumber(arg) ? arg : Number(arg));
+			}
+			if (opts.stopEarly) {
+				argv._.push.apply(argv._, args.slice(i + 1));
+				break;
+			}
+		}
+	}
+
+	Object.keys(defaults).forEach(function (k) {
+		if (!hasKey(argv, k.split('.'))) {
+			setKey(argv, k.split('.'), defaults[k]);
+
+			(aliases[k] || []).forEach(function (x) {
+				setKey(argv, x.split('.'), defaults[k]);
+			});
+		}
+	});
+
+	if (opts['--']) {
+		argv['--'] = notFlags.slice();
+	} else {
+		notFlags.forEach(function (k) {
+			argv._.push(k);
+		});
+	}
+
+	return argv;
+};
diff --git a/backend/node_modules/minimist/package.json b/backend/node_modules/minimist/package.json
new file mode 100644
index 0000000..c10a334
--- /dev/null
+++ b/backend/node_modules/minimist/package.json
@@ -0,0 +1,75 @@
+{
+	"name": "minimist",
+	"version": "1.2.8",
+	"description": "parse argument options",
+	"main": "index.js",
+	"devDependencies": {
+		"@ljharb/eslint-config": "^21.0.1",
+		"aud": "^2.0.2",
+		"auto-changelog": "^2.4.0",
+		"eslint": "=8.8.0",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.0",
+		"nyc": "^10.3.2",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.6.3"
+	},
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=auto",
+		"prepublishOnly": "safe-publish-latest",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"lint": "eslint --ext=js,mjs .",
+		"pretest": "npm run lint",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"test": "npm run tests-only",
+		"posttest": "aud --production",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"testling": {
+		"files": "test/*.js",
+		"browsers": [
+			"ie/6..latest",
+			"ff/5",
+			"firefox/latest",
+			"chrome/10",
+			"chrome/latest",
+			"safari/5.1",
+			"safari/latest",
+			"opera/12"
+		]
+	},
+	"repository": {
+		"type": "git",
+		"url": "git://github.com/minimistjs/minimist.git"
+	},
+	"homepage": "https://github.com/minimistjs/minimist",
+	"keywords": [
+		"argv",
+		"getopt",
+		"parser",
+		"optimist"
+	],
+	"author": {
+		"name": "James Halliday",
+		"email": "mail@substack.net",
+		"url": "http://substack.net"
+	},
+	"funding": {
+		"url": "https://github.com/sponsors/ljharb"
+	},
+	"license": "MIT",
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	}
+}
diff --git a/backend/node_modules/minimist/test/all_bool.js b/backend/node_modules/minimist/test/all_bool.js
new file mode 100644
index 0000000..befa0c9
--- /dev/null
+++ b/backend/node_modules/minimist/test/all_bool.js
@@ -0,0 +1,34 @@
+'use strict';
+
+var parse = require('../');
+var test = require('tape');
+
+test('flag boolean true (default all --args to boolean)', function (t) {
+	var argv = parse(['moo', '--honk', 'cow'], {
+		boolean: true,
+	});
+
+	t.deepEqual(argv, {
+		honk: true,
+		_: ['moo', 'cow'],
+	});
+
+	t.deepEqual(typeof argv.honk, 'boolean');
+	t.end();
+});
+
+test('flag boolean true only affects double hyphen arguments without equals signs', function (t) {
+	var argv = parse(['moo', '--honk', 'cow', '-p', '55', '--tacos=good'], {
+		boolean: true,
+	});
+
+	t.deepEqual(argv, {
+		honk: true,
+		tacos: 'good',
+		p: 55,
+		_: ['moo', 'cow'],
+	});
+
+	t.deepEqual(typeof argv.honk, 'boolean');
+	t.end();
+});
diff --git a/backend/node_modules/minimist/test/bool.js b/backend/node_modules/minimist/test/bool.js
new file mode 100644
index 0000000..e58d47e
--- /dev/null
+++ b/backend/node_modules/minimist/test/bool.js
@@ -0,0 +1,177 @@
+'use strict';
+
+var parse = require('../');
+var test = require('tape');
+
+test('flag boolean default false', function (t) {
+	var argv = parse(['moo'], {
+		boolean: ['t', 'verbose'],
+		default: { verbose: false, t: false },
+	});
+
+	t.deepEqual(argv, {
+		verbose: false,
+		t: false,
+		_: ['moo'],
+	});
+
+	t.deepEqual(typeof argv.verbose, 'boolean');
+	t.deepEqual(typeof argv.t, 'boolean');
+	t.end();
+
+});
+
+test('boolean groups', function (t) {
+	var argv = parse(['-x', '-z', 'one', 'two', 'three'], {
+		boolean: ['x', 'y', 'z'],
+	});
+
+	t.deepEqual(argv, {
+		x: true,
+		y: false,
+		z: true,
+		_: ['one', 'two', 'three'],
+	});
+
+	t.deepEqual(typeof argv.x, 'boolean');
+	t.deepEqual(typeof argv.y, 'boolean');
+	t.deepEqual(typeof argv.z, 'boolean');
+	t.end();
+});
+test('boolean and alias with chainable api', function (t) {
+	var aliased = ['-h', 'derp'];
+	var regular = ['--herp', 'derp'];
+	var aliasedArgv = parse(aliased, {
+		boolean: 'herp',
+		alias: { h: 'herp' },
+	});
+	var propertyArgv = parse(regular, {
+		boolean: 'herp',
+		alias: { h: 'herp' },
+	});
+	var expected = {
+		herp: true,
+		h: true,
+		_: ['derp'],
+	};
+
+	t.same(aliasedArgv, expected);
+	t.same(propertyArgv, expected);
+	t.end();
+});
+
+test('boolean and alias with options hash', function (t) {
+	var aliased = ['-h', 'derp'];
+	var regular = ['--herp', 'derp'];
+	var opts = {
+		alias: { h: 'herp' },
+		boolean: 'herp',
+	};
+	var aliasedArgv = parse(aliased, opts);
+	var propertyArgv = parse(regular, opts);
+	var expected = {
+		herp: true,
+		h: true,
+		_: ['derp'],
+	};
+	t.same(aliasedArgv, expected);
+	t.same(propertyArgv, expected);
+	t.end();
+});
+
+test('boolean and alias array with options hash', function (t) {
+	var aliased = ['-h', 'derp'];
+	var regular = ['--herp', 'derp'];
+	var alt = ['--harp', 'derp'];
+	var opts = {
+		alias: { h: ['herp', 'harp'] },
+		boolean: 'h',
+	};
+	var aliasedArgv = parse(aliased, opts);
+	var propertyArgv = parse(regular, opts);
+	var altPropertyArgv = parse(alt, opts);
+	var expected = {
+		harp: true,
+		herp: true,
+		h: true,
+		_: ['derp'],
+	};
+	t.same(aliasedArgv, expected);
+	t.same(propertyArgv, expected);
+	t.same(altPropertyArgv, expected);
+	t.end();
+});
+
+test('boolean and alias using explicit true', function (t) {
+	var aliased = ['-h', 'true'];
+	var regular = ['--herp', 'true'];
+	var opts = {
+		alias: { h: 'herp' },
+		boolean: 'h',
+	};
+	var aliasedArgv = parse(aliased, opts);
+	var propertyArgv = parse(regular, opts);
+	var expected = {
+		herp: true,
+		h: true,
+		_: [],
+	};
+
+	t.same(aliasedArgv, expected);
+	t.same(propertyArgv, expected);
+	t.end();
+});
+
+// regression, see https://github.com/substack/node-optimist/issues/71
+test('boolean and --x=true', function (t) {
+	var parsed = parse(['--boool', '--other=true'], {
+		boolean: 'boool',
+	});
+
+	t.same(parsed.boool, true);
+	t.same(parsed.other, 'true');
+
+	parsed = parse(['--boool', '--other=false'], {
+		boolean: 'boool',
+	});
+
+	t.same(parsed.boool, true);
+	t.same(parsed.other, 'false');
+	t.end();
+});
+
+test('boolean --boool=true', function (t) {
+	var parsed = parse(['--boool=true'], {
+		default: {
+			boool: false,
+		},
+		boolean: ['boool'],
+	});
+
+	t.same(parsed.boool, true);
+	t.end();
+});
+
+test('boolean --boool=false', function (t) {
+	var parsed = parse(['--boool=false'], {
+		default: {
+			boool: true,
+		},
+		boolean: ['boool'],
+	});
+
+	t.same(parsed.boool, false);
+	t.end();
+});
+
+test('boolean using something similar to true', function (t) {
+	var opts = { boolean: 'h' };
+	var result = parse(['-h', 'true.txt'], opts);
+	var expected = {
+		h: true,
+		_: ['true.txt'],
+	};
+
+	t.same(result, expected);
+	t.end();
+});
diff --git a/backend/node_modules/minimist/test/dash.js b/backend/node_modules/minimist/test/dash.js
new file mode 100644
index 0000000..7078817
--- /dev/null
+++ b/backend/node_modules/minimist/test/dash.js
@@ -0,0 +1,43 @@
+'use strict';
+
+var parse = require('../');
+var test = require('tape');
+
+test('-', function (t) {
+	t.plan(6);
+	t.deepEqual(parse(['-n', '-']), { n: '-', _: [] });
+	t.deepEqual(parse(['--nnn', '-']), { nnn: '-', _: [] });
+	t.deepEqual(parse(['-']), { _: ['-'] });
+	t.deepEqual(parse(['-f-']), { f: '-', _: [] });
+	t.deepEqual(
+		parse(['-b', '-'], { boolean: 'b' }),
+		{ b: true, _: ['-'] }
+	);
+	t.deepEqual(
+		parse(['-s', '-'], { string: 's' }),
+		{ s: '-', _: [] }
+	);
+});
+
+test('-a -- b', function (t) {
+	t.plan(2);
+	t.deepEqual(parse(['-a', '--', 'b']), { a: true, _: ['b'] });
+	t.deepEqual(parse(['--a', '--', 'b']), { a: true, _: ['b'] });
+});
+
+test('move arguments after the -- into their own `--` array', function (t) {
+	t.plan(1);
+	t.deepEqual(
+		parse(['--name', 'John', 'before', '--', 'after'], { '--': true }),
+		{ name: 'John', _: ['before'], '--': ['after'] }
+	);
+});
+
+test('--- option value', function (t) {
+	// A multi-dash value is largely an edge case, but check the behaviour is as expected,
+	// and in particular the same for short option and long option (as made consistent in Jan 2023).
+	t.plan(2);
+	t.deepEqual(parse(['-n', '---']), { n: '---', _: [] });
+	t.deepEqual(parse(['--nnn', '---']), { nnn: '---', _: [] });
+});
+
diff --git a/backend/node_modules/minimist/test/default_bool.js b/backend/node_modules/minimist/test/default_bool.js
new file mode 100644
index 0000000..4e9f625
--- /dev/null
+++ b/backend/node_modules/minimist/test/default_bool.js
@@ -0,0 +1,37 @@
+'use strict';
+
+var test = require('tape');
+var parse = require('../');
+
+test('boolean default true', function (t) {
+	var argv = parse([], {
+		boolean: 'sometrue',
+		default: { sometrue: true },
+	});
+	t.equal(argv.sometrue, true);
+	t.end();
+});
+
+test('boolean default false', function (t) {
+	var argv = parse([], {
+		boolean: 'somefalse',
+		default: { somefalse: false },
+	});
+	t.equal(argv.somefalse, false);
+	t.end();
+});
+
+test('boolean default to null', function (t) {
+	var argv = parse([], {
+		boolean: 'maybe',
+		default: { maybe: null },
+	});
+	t.equal(argv.maybe, null);
+
+	var argvLong = parse(['--maybe'], {
+		boolean: 'maybe',
+		default: { maybe: null },
+	});
+	t.equal(argvLong.maybe, true);
+	t.end();
+});
diff --git a/backend/node_modules/minimist/test/dotted.js b/backend/node_modules/minimist/test/dotted.js
new file mode 100644
index 0000000..126ff03
--- /dev/null
+++ b/backend/node_modules/minimist/test/dotted.js
@@ -0,0 +1,24 @@
+'use strict';
+
+var parse = require('../');
+var test = require('tape');
+
+test('dotted alias', function (t) {
+	var argv = parse(['--a.b', '22'], { default: { 'a.b': 11 }, alias: { 'a.b': 'aa.bb' } });
+	t.equal(argv.a.b, 22);
+	t.equal(argv.aa.bb, 22);
+	t.end();
+});
+
+test('dotted default', function (t) {
+	var argv = parse('', { default: { 'a.b': 11 }, alias: { 'a.b': 'aa.bb' } });
+	t.equal(argv.a.b, 11);
+	t.equal(argv.aa.bb, 11);
+	t.end();
+});
+
+test('dotted default with no alias', function (t) {
+	var argv = parse('', { default: { 'a.b': 11 } });
+	t.equal(argv.a.b, 11);
+	t.end();
+});
diff --git a/backend/node_modules/minimist/test/kv_short.js b/backend/node_modules/minimist/test/kv_short.js
new file mode 100644
index 0000000..6d1b53a
--- /dev/null
+++ b/backend/node_modules/minimist/test/kv_short.js
@@ -0,0 +1,32 @@
+'use strict';
+
+var parse = require('../');
+var test = require('tape');
+
+test('short -k=v', function (t) {
+	t.plan(1);
+
+	var argv = parse(['-b=123']);
+	t.deepEqual(argv, { b: 123, _: [] });
+});
+
+test('multi short -k=v', function (t) {
+	t.plan(1);
+
+	var argv = parse(['-a=whatever', '-b=robots']);
+	t.deepEqual(argv, { a: 'whatever', b: 'robots', _: [] });
+});
+
+test('short with embedded equals -k=a=b', function (t) {
+	t.plan(1);
+
+	var argv = parse(['-k=a=b']);
+	t.deepEqual(argv, { k: 'a=b', _: [] });
+});
+
+test('short with later equals like -ab=c', function (t) {
+	t.plan(1);
+
+	var argv = parse(['-ab=c']);
+	t.deepEqual(argv, { a: true, b: 'c', _: [] });
+});
diff --git a/backend/node_modules/minimist/test/long.js b/backend/node_modules/minimist/test/long.js
new file mode 100644
index 0000000..9fef51f
--- /dev/null
+++ b/backend/node_modules/minimist/test/long.js
@@ -0,0 +1,33 @@
+'use strict';
+
+var test = require('tape');
+var parse = require('../');
+
+test('long opts', function (t) {
+	t.deepEqual(
+		parse(['--bool']),
+		{ bool: true, _: [] },
+		'long boolean'
+	);
+	t.deepEqual(
+		parse(['--pow', 'xixxle']),
+		{ pow: 'xixxle', _: [] },
+		'long capture sp'
+	);
+	t.deepEqual(
+		parse(['--pow=xixxle']),
+		{ pow: 'xixxle', _: [] },
+		'long capture eq'
+	);
+	t.deepEqual(
+		parse(['--host', 'localhost', '--port', '555']),
+		{ host: 'localhost', port: 555, _: [] },
+		'long captures sp'
+	);
+	t.deepEqual(
+		parse(['--host=localhost', '--port=555']),
+		{ host: 'localhost', port: 555, _: [] },
+		'long captures eq'
+	);
+	t.end();
+});
diff --git a/backend/node_modules/minimist/test/num.js b/backend/node_modules/minimist/test/num.js
new file mode 100644
index 0000000..074393e
--- /dev/null
+++ b/backend/node_modules/minimist/test/num.js
@@ -0,0 +1,38 @@
+'use strict';
+
+var parse = require('../');
+var test = require('tape');
+
+test('nums', function (t) {
+	var argv = parse([
+		'-x', '1234',
+		'-y', '5.67',
+		'-z', '1e7',
+		'-w', '10f',
+		'--hex', '0xdeadbeef',
+		'789',
+	]);
+	t.deepEqual(argv, {
+		x: 1234,
+		y: 5.67,
+		z: 1e7,
+		w: '10f',
+		hex: 0xdeadbeef,
+		_: [789],
+	});
+	t.deepEqual(typeof argv.x, 'number');
+	t.deepEqual(typeof argv.y, 'number');
+	t.deepEqual(typeof argv.z, 'number');
+	t.deepEqual(typeof argv.w, 'string');
+	t.deepEqual(typeof argv.hex, 'number');
+	t.deepEqual(typeof argv._[0], 'number');
+	t.end();
+});
+
+test('already a number', function (t) {
+	var argv = parse(['-x', 1234, 789]);
+	t.deepEqual(argv, { x: 1234, _: [789] });
+	t.deepEqual(typeof argv.x, 'number');
+	t.deepEqual(typeof argv._[0], 'number');
+	t.end();
+});
diff --git a/backend/node_modules/minimist/test/parse.js b/backend/node_modules/minimist/test/parse.js
new file mode 100644
index 0000000..65d9d90
--- /dev/null
+++ b/backend/node_modules/minimist/test/parse.js
@@ -0,0 +1,209 @@
+'use strict';
+
+var parse = require('../');
+var test = require('tape');
+
+test('parse args', function (t) {
+	t.deepEqual(
+		parse(['--no-moo']),
+		{ moo: false, _: [] },
+		'no'
+	);
+	t.deepEqual(
+		parse(['-v', 'a', '-v', 'b', '-v', 'c']),
+		{ v: ['a', 'b', 'c'], _: [] },
+		'multi'
+	);
+	t.end();
+});
+
+test('comprehensive', function (t) {
+	t.deepEqual(
+		parse([
+			'--name=meowmers', 'bare', '-cats', 'woo',
+			'-h', 'awesome', '--multi=quux',
+			'--key', 'value',
+			'-b', '--bool', '--no-meep', '--multi=baz',
+			'--', '--not-a-flag', 'eek',
+		]),
+		{
+			c: true,
+			a: true,
+			t: true,
+			s: 'woo',
+			h: 'awesome',
+			b: true,
+			bool: true,
+			key: 'value',
+			multi: ['quux', 'baz'],
+			meep: false,
+			name: 'meowmers',
+			_: ['bare', '--not-a-flag', 'eek'],
+		}
+	);
+	t.end();
+});
+
+test('flag boolean', function (t) {
+	var argv = parse(['-t', 'moo'], { boolean: 't' });
+	t.deepEqual(argv, { t: true, _: ['moo'] });
+	t.deepEqual(typeof argv.t, 'boolean');
+	t.end();
+});
+
+test('flag boolean value', function (t) {
+	var argv = parse(['--verbose', 'false', 'moo', '-t', 'true'], {
+		boolean: ['t', 'verbose'],
+		default: { verbose: true },
+	});
+
+	t.deepEqual(argv, {
+		verbose: false,
+		t: true,
+		_: ['moo'],
+	});
+
+	t.deepEqual(typeof argv.verbose, 'boolean');
+	t.deepEqual(typeof argv.t, 'boolean');
+	t.end();
+});
+
+test('newlines in params', function (t) {
+	var args = parse(['-s', 'X\nX']);
+	t.deepEqual(args, { _: [], s: 'X\nX' });
+
+	// reproduce in bash:
+	// VALUE="new
+	// line"
+	// node program.js --s="$VALUE"
+	args = parse(['--s=X\nX']);
+	t.deepEqual(args, { _: [], s: 'X\nX' });
+	t.end();
+});
+
+test('strings', function (t) {
+	var s = parse(['-s', '0001234'], { string: 's' }).s;
+	t.equal(s, '0001234');
+	t.equal(typeof s, 'string');
+
+	var x = parse(['-x', '56'], { string: 'x' }).x;
+	t.equal(x, '56');
+	t.equal(typeof x, 'string');
+	t.end();
+});
+
+test('stringArgs', function (t) {
+	var s = parse(['  ', '  '], { string: '_' })._;
+	t.same(s.length, 2);
+	t.same(typeof s[0], 'string');
+	t.same(s[0], '  ');
+	t.same(typeof s[1], 'string');
+	t.same(s[1], '  ');
+	t.end();
+});
+
+test('empty strings', function (t) {
+	var s = parse(['-s'], { string: 's' }).s;
+	t.equal(s, '');
+	t.equal(typeof s, 'string');
+
+	var str = parse(['--str'], { string: 'str' }).str;
+	t.equal(str, '');
+	t.equal(typeof str, 'string');
+
+	var letters = parse(['-art'], {
+		string: ['a', 't'],
+	});
+
+	t.equal(letters.a, '');
+	t.equal(letters.r, true);
+	t.equal(letters.t, '');
+
+	t.end();
+});
+
+test('string and alias', function (t) {
+	var x = parse(['--str', '000123'], {
+		string: 's',
+		alias: { s: 'str' },
+	});
+
+	t.equal(x.str, '000123');
+	t.equal(typeof x.str, 'string');
+	t.equal(x.s, '000123');
+	t.equal(typeof x.s, 'string');
+
+	var y = parse(['-s', '000123'], {
+		string: 'str',
+		alias: { str: 's' },
+	});
+
+	t.equal(y.str, '000123');
+	t.equal(typeof y.str, 'string');
+	t.equal(y.s, '000123');
+	t.equal(typeof y.s, 'string');
+
+	var z = parse(['-s123'], {
+		alias: { str: ['s', 'S'] },
+		string: ['str'],
+	});
+
+	t.deepEqual(
+		z,
+		{ _: [], s: '123', S: '123', str: '123' },
+		'opt.string works with multiple aliases'
+	);
+	t.end();
+});
+
+test('slashBreak', function (t) {
+	t.same(
+		parse(['-I/foo/bar/baz']),
+		{ I: '/foo/bar/baz', _: [] }
+	);
+	t.same(
+		parse(['-xyz/foo/bar/baz']),
+		{ x: true, y: true, z: '/foo/bar/baz', _: [] }
+	);
+	t.end();
+});
+
+test('alias', function (t) {
+	var argv = parse(['-f', '11', '--zoom', '55'], {
+		alias: { z: 'zoom' },
+	});
+	t.equal(argv.zoom, 55);
+	t.equal(argv.z, argv.zoom);
+	t.equal(argv.f, 11);
+	t.end();
+});
+
+test('multiAlias', function (t) {
+	var argv = parse(['-f', '11', '--zoom', '55'], {
+		alias: { z: ['zm', 'zoom'] },
+	});
+	t.equal(argv.zoom, 55);
+	t.equal(argv.z, argv.zoom);
+	t.equal(argv.z, argv.zm);
+	t.equal(argv.f, 11);
+	t.end();
+});
+
+test('nested dotted objects', function (t) {
+	var argv = parse([
+		'--foo.bar', '3', '--foo.baz', '4',
+		'--foo.quux.quibble', '5', '--foo.quux.o_O',
+		'--beep.boop',
+	]);
+
+	t.same(argv.foo, {
+		bar: 3,
+		baz: 4,
+		quux: {
+			quibble: 5,
+			o_O: true,
+		},
+	});
+	t.same(argv.beep, { boop: true });
+	t.end();
+});
diff --git a/backend/node_modules/minimist/test/parse_modified.js b/backend/node_modules/minimist/test/parse_modified.js
new file mode 100644
index 0000000..32965d1
--- /dev/null
+++ b/backend/node_modules/minimist/test/parse_modified.js
@@ -0,0 +1,11 @@
+'use strict';
+
+var parse = require('../');
+var test = require('tape');
+
+test('parse with modifier functions', function (t) {
+	t.plan(1);
+
+	var argv = parse(['-b', '123'], { boolean: 'b' });
+	t.deepEqual(argv, { b: true, _: [123] });
+});
diff --git a/backend/node_modules/minimist/test/proto.js b/backend/node_modules/minimist/test/proto.js
new file mode 100644
index 0000000..6e629dd
--- /dev/null
+++ b/backend/node_modules/minimist/test/proto.js
@@ -0,0 +1,64 @@
+'use strict';
+
+/* eslint no-proto: 0 */
+
+var parse = require('../');
+var test = require('tape');
+
+test('proto pollution', function (t) {
+	var argv = parse(['--__proto__.x', '123']);
+	t.equal({}.x, undefined);
+	t.equal(argv.__proto__.x, undefined);
+	t.equal(argv.x, undefined);
+	t.end();
+});
+
+test('proto pollution (array)', function (t) {
+	var argv = parse(['--x', '4', '--x', '5', '--x.__proto__.z', '789']);
+	t.equal({}.z, undefined);
+	t.deepEqual(argv.x, [4, 5]);
+	t.equal(argv.x.z, undefined);
+	t.equal(argv.x.__proto__.z, undefined);
+	t.end();
+});
+
+test('proto pollution (number)', function (t) {
+	var argv = parse(['--x', '5', '--x.__proto__.z', '100']);
+	t.equal({}.z, undefined);
+	t.equal((4).z, undefined);
+	t.equal(argv.x, 5);
+	t.equal(argv.x.z, undefined);
+	t.end();
+});
+
+test('proto pollution (string)', function (t) {
+	var argv = parse(['--x', 'abc', '--x.__proto__.z', 'def']);
+	t.equal({}.z, undefined);
+	t.equal('...'.z, undefined);
+	t.equal(argv.x, 'abc');
+	t.equal(argv.x.z, undefined);
+	t.end();
+});
+
+test('proto pollution (constructor)', function (t) {
+	var argv = parse(['--constructor.prototype.y', '123']);
+	t.equal({}.y, undefined);
+	t.equal(argv.y, undefined);
+	t.end();
+});
+
+test('proto pollution (constructor function)', function (t) {
+	var argv = parse(['--_.concat.constructor.prototype.y', '123']);
+	function fnToBeTested() {}
+	t.equal(fnToBeTested.y, undefined);
+	t.equal(argv.y, undefined);
+	t.end();
+});
+
+// powered by snyk - https://github.com/backstage/backstage/issues/10343
+test('proto pollution (constructor function) snyk', function (t) {
+	var argv = parse('--_.constructor.constructor.prototype.foo bar'.split(' '));
+	t.equal(function () {}.foo, undefined);
+	t.equal(argv.y, undefined);
+	t.end();
+});
diff --git a/backend/node_modules/minimist/test/short.js b/backend/node_modules/minimist/test/short.js
new file mode 100644
index 0000000..4a7b843
--- /dev/null
+++ b/backend/node_modules/minimist/test/short.js
@@ -0,0 +1,69 @@
+'use strict';
+
+var parse = require('../');
+var test = require('tape');
+
+test('numeric short args', function (t) {
+	t.plan(2);
+	t.deepEqual(parse(['-n123']), { n: 123, _: [] });
+	t.deepEqual(
+		parse(['-123', '456']),
+		{ 1: true, 2: true, 3: 456, _: [] }
+	);
+});
+
+test('short', function (t) {
+	t.deepEqual(
+		parse(['-b']),
+		{ b: true, _: [] },
+		'short boolean'
+	);
+	t.deepEqual(
+		parse(['foo', 'bar', 'baz']),
+		{ _: ['foo', 'bar', 'baz'] },
+		'bare'
+	);
+	t.deepEqual(
+		parse(['-cats']),
+		{ c: true, a: true, t: true, s: true, _: [] },
+		'group'
+	);
+	t.deepEqual(
+		parse(['-cats', 'meow']),
+		{ c: true, a: true, t: true, s: 'meow', _: [] },
+		'short group next'
+	);
+	t.deepEqual(
+		parse(['-h', 'localhost']),
+		{ h: 'localhost', _: [] },
+		'short capture'
+	);
+	t.deepEqual(
+		parse(['-h', 'localhost', '-p', '555']),
+		{ h: 'localhost', p: 555, _: [] },
+		'short captures'
+	);
+	t.end();
+});
+
+test('mixed short bool and capture', function (t) {
+	t.same(
+		parse(['-h', 'localhost', '-fp', '555', 'script.js']),
+		{
+			f: true, p: 555, h: 'localhost',
+			_: ['script.js'],
+		}
+	);
+	t.end();
+});
+
+test('short and long', function (t) {
+	t.deepEqual(
+		parse(['-h', 'localhost', '-fp', '555', 'script.js']),
+		{
+			f: true, p: 555, h: 'localhost',
+			_: ['script.js'],
+		}
+	);
+	t.end();
+});
diff --git a/backend/node_modules/minimist/test/stop_early.js b/backend/node_modules/minimist/test/stop_early.js
new file mode 100644
index 0000000..52a6a91
--- /dev/null
+++ b/backend/node_modules/minimist/test/stop_early.js
@@ -0,0 +1,17 @@
+'use strict';
+
+var parse = require('../');
+var test = require('tape');
+
+test('stops parsing on the first non-option when stopEarly is set', function (t) {
+	var argv = parse(['--aaa', 'bbb', 'ccc', '--ddd'], {
+		stopEarly: true,
+	});
+
+	t.deepEqual(argv, {
+		aaa: 'bbb',
+		_: ['ccc', '--ddd'],
+	});
+
+	t.end();
+});
diff --git a/backend/node_modules/minimist/test/unknown.js b/backend/node_modules/minimist/test/unknown.js
new file mode 100644
index 0000000..4f2e0ca
--- /dev/null
+++ b/backend/node_modules/minimist/test/unknown.js
@@ -0,0 +1,104 @@
+'use strict';
+
+var parse = require('../');
+var test = require('tape');
+
+test('boolean and alias is not unknown', function (t) {
+	var unknown = [];
+	function unknownFn(arg) {
+		unknown.push(arg);
+		return false;
+	}
+	var aliased = ['-h', 'true', '--derp', 'true'];
+	var regular = ['--herp', 'true', '-d', 'true'];
+	var opts = {
+		alias: { h: 'herp' },
+		boolean: 'h',
+		unknown: unknownFn,
+	};
+	parse(aliased, opts);
+	parse(regular, opts);
+
+	t.same(unknown, ['--derp', '-d']);
+	t.end();
+});
+
+test('flag boolean true any double hyphen argument is not unknown', function (t) {
+	var unknown = [];
+	function unknownFn(arg) {
+		unknown.push(arg);
+		return false;
+	}
+	var argv = parse(['--honk', '--tacos=good', 'cow', '-p', '55'], {
+		boolean: true,
+		unknown: unknownFn,
+	});
+	t.same(unknown, ['--tacos=good', 'cow', '-p']);
+	t.same(argv, {
+		honk: true,
+		_: [],
+	});
+	t.end();
+});
+
+test('string and alias is not unknown', function (t) {
+	var unknown = [];
+	function unknownFn(arg) {
+		unknown.push(arg);
+		return false;
+	}
+	var aliased = ['-h', 'hello', '--derp', 'goodbye'];
+	var regular = ['--herp', 'hello', '-d', 'moon'];
+	var opts = {
+		alias: { h: 'herp' },
+		string: 'h',
+		unknown: unknownFn,
+	};
+	parse(aliased, opts);
+	parse(regular, opts);
+
+	t.same(unknown, ['--derp', '-d']);
+	t.end();
+});
+
+test('default and alias is not unknown', function (t) {
+	var unknown = [];
+	function unknownFn(arg) {
+		unknown.push(arg);
+		return false;
+	}
+	var aliased = ['-h', 'hello'];
+	var regular = ['--herp', 'hello'];
+	var opts = {
+		default: { h: 'bar' },
+		alias: { h: 'herp' },
+		unknown: unknownFn,
+	};
+	parse(aliased, opts);
+	parse(regular, opts);
+
+	t.same(unknown, []);
+	t.end();
+	unknownFn(); // exercise fn for 100% coverage
+});
+
+test('value following -- is not unknown', function (t) {
+	var unknown = [];
+	function unknownFn(arg) {
+		unknown.push(arg);
+		return false;
+	}
+	var aliased = ['--bad', '--', 'good', 'arg'];
+	var opts = {
+		'--': true,
+		unknown: unknownFn,
+	};
+	var argv = parse(aliased, opts);
+
+	t.same(unknown, ['--bad']);
+	t.same(argv, {
+		'--': ['good', 'arg'],
+		_: [],
+	});
+	t.end();
+});
diff --git a/backend/node_modules/minimist/test/whitespace.js b/backend/node_modules/minimist/test/whitespace.js
new file mode 100644
index 0000000..4fdaf1d
--- /dev/null
+++ b/backend/node_modules/minimist/test/whitespace.js
@@ -0,0 +1,10 @@
+'use strict';
+
+var parse = require('../');
+var test = require('tape');
+
+test('whitespace should be whitespace', function (t) {
+	t.plan(1);
+	var x = parse(['-x', '\t']).x;
+	t.equal(x, '\t');
+});
diff --git a/backend/node_modules/mkdirp/LICENSE b/backend/node_modules/mkdirp/LICENSE
new file mode 100644
index 0000000..432d1ae
--- /dev/null
+++ b/backend/node_modules/mkdirp/LICENSE
@@ -0,0 +1,21 @@
+Copyright 2010 James Halliday (mail@substack.net)
+
+This project is free software released under the MIT/X11 license:
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/mkdirp/bin/cmd.js b/backend/node_modules/mkdirp/bin/cmd.js
new file mode 100644
index 0000000..d95de15
--- /dev/null
+++ b/backend/node_modules/mkdirp/bin/cmd.js
@@ -0,0 +1,33 @@
+#!/usr/bin/env node
+
+var mkdirp = require('../');
+var minimist = require('minimist');
+var fs = require('fs');
+
+var argv = minimist(process.argv.slice(2), {
+    alias: { m: 'mode', h: 'help' },
+    string: [ 'mode' ]
+});
+if (argv.help) {
+    fs.createReadStream(__dirname + '/usage.txt').pipe(process.stdout);
+    return;
+}
+
+var paths = argv._.slice();
+var mode = argv.mode ? parseInt(argv.mode, 8) : undefined;
+
+(function next () {
+    if (paths.length === 0) return;
+    var p = paths.shift();
+    
+    if (mode === undefined) mkdirp(p, cb)
+    else mkdirp(p, mode, cb)
+    
+    function cb (err) {
+        if (err) {
+            console.error(err.message);
+            process.exit(1);
+        }
+        else next();
+    }
+})();
diff --git a/backend/node_modules/mkdirp/bin/usage.txt b/backend/node_modules/mkdirp/bin/usage.txt
new file mode 100644
index 0000000..f952aa2
--- /dev/null
+++ b/backend/node_modules/mkdirp/bin/usage.txt
@@ -0,0 +1,12 @@
+usage: mkdirp [DIR1,DIR2..] {OPTIONS}
+
+  Create each supplied directory including any necessary parent directories that
+  don't yet exist.
+  
+  If the directory already exists, do nothing.
+
+OPTIONS are:
+
+  -m, --mode   If a directory needs to be created, set the mode as an octal
+               permission string.
+
diff --git a/backend/node_modules/mkdirp/index.js b/backend/node_modules/mkdirp/index.js
new file mode 100644
index 0000000..0890ac3
--- /dev/null
+++ b/backend/node_modules/mkdirp/index.js
@@ -0,0 +1,102 @@
+var path = require('path');
+var fs = require('fs');
+var _0777 = parseInt('0777', 8);
+
+module.exports = mkdirP.mkdirp = mkdirP.mkdirP = mkdirP;
+
+function mkdirP (p, opts, f, made) {
+    if (typeof opts === 'function') {
+        f = opts;
+        opts = {};
+    }
+    else if (!opts || typeof opts !== 'object') {
+        opts = { mode: opts };
+    }
+    
+    var mode = opts.mode;
+    var xfs = opts.fs || fs;
+    
+    if (mode === undefined) {
+        mode = _0777
+    }
+    if (!made) made = null;
+    
+    var cb = f || /* istanbul ignore next */ function () {};
+    p = path.resolve(p);
+    
+    xfs.mkdir(p, mode, function (er) {
+        if (!er) {
+            made = made || p;
+            return cb(null, made);
+        }
+        switch (er.code) {
+            case 'ENOENT':
+                /* istanbul ignore if */
+                if (path.dirname(p) === p) return cb(er);
+                mkdirP(path.dirname(p), opts, function (er, made) {
+                    /* istanbul ignore if */
+                    if (er) cb(er, made);
+                    else mkdirP(p, opts, cb, made);
+                });
+                break;
+
+            // In the case of any other error, just see if there's a dir
+            // there already.  If so, then hooray!  If not, then something
+            // is borked.
+            default:
+                xfs.stat(p, function (er2, stat) {
+                    // if the stat fails, then that's super weird.
+                    // let the original error be the failure reason.
+                    if (er2 || !stat.isDirectory()) cb(er, made)
+                    else cb(null, made);
+                });
+                break;
+        }
+    });
+}
+
+mkdirP.sync = function sync (p, opts, made) {
+    if (!opts || typeof opts !== 'object') {
+        opts = { mode: opts };
+    }
+    
+    var mode = opts.mode;
+    var xfs = opts.fs || fs;
+    
+    if (mode === undefined) {
+        mode = _0777
+    }
+    if (!made) made = null;
+
+    p = path.resolve(p);
+
+    try {
+        xfs.mkdirSync(p, mode);
+        made = made || p;
+    }
+    catch (err0) {
+        switch (err0.code) {
+            case 'ENOENT' :
+                made = sync(path.dirname(p), opts, made);
+                sync(p, opts, made);
+                break;
+
+            // In the case of any other error, just see if there's a dir
+            // there already.  If so, then hooray!  If not, then something
+            // is borked.
+            default:
+                var stat;
+                try {
+                    stat = xfs.statSync(p);
+                }
+                catch (err1) /* istanbul ignore next */ {
+                    throw err0;
+                }
+                /* istanbul ignore if */
+                if (!stat.isDirectory()) throw err0;
+                break;
+        }
+    }
+
+    return made;
+};
diff --git a/backend/node_modules/mkdirp/package.json b/backend/node_modules/mkdirp/package.json
new file mode 100644
index 0000000..951e58d
--- /dev/null
+++ b/backend/node_modules/mkdirp/package.json
@@ -0,0 +1,33 @@
+{
+  "name": "mkdirp",
+  "description": "Recursively mkdir, like `mkdir -p`",
+  "version": "0.5.6",
+  "publishConfig": {
+    "tag": "legacy"
+  },
+  "author": "James Halliday <mail@substack.net> (http://substack.net)",
+  "main": "index.js",
+  "keywords": [
+    "mkdir",
+    "directory"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/substack/node-mkdirp.git"
+  },
+  "scripts": {
+    "test": "tap test/*.js"
+  },
+  "dependencies": {
+    "minimist": "^1.2.6"
+  },
+  "devDependencies": {
+    "tap": "^16.0.1"
+  },
+  "bin": "bin/cmd.js",
+  "license": "MIT",
+  "files": [
+    "bin",
+    "index.js"
+  ]
+}
diff --git a/backend/node_modules/mkdirp/readme.markdown b/backend/node_modules/mkdirp/readme.markdown
new file mode 100644
index 0000000..fc314bf
--- /dev/null
+++ b/backend/node_modules/mkdirp/readme.markdown
@@ -0,0 +1,100 @@
+# mkdirp
+
+Like `mkdir -p`, but in node.js!
+
+[![build status](https://secure.travis-ci.org/substack/node-mkdirp.png)](http://travis-ci.org/substack/node-mkdirp)
+
+# example
+
+## pow.js
+
+```js
+var mkdirp = require('mkdirp');
+    
+mkdirp('/tmp/foo/bar/baz', function (err) {
+    if (err) console.error(err)
+    else console.log('pow!')
+});
+```
+
+Output
+
+```
+pow!
+```
+
+And now /tmp/foo/bar/baz exists, huzzah!
+
+# methods
+
+```js
+var mkdirp = require('mkdirp');
+```
+
+## mkdirp(dir, opts, cb)
+
+Create a new directory and any necessary subdirectories at `dir` with octal
+permission string `opts.mode`. If `opts` is a non-object, it will be treated as
+the `opts.mode`.
+
+If `opts.mode` isn't specified, it defaults to `0777`.
+
+`cb(err, made)` fires with the error or the first directory `made`
+that had to be created, if any.
+
+You can optionally pass in an alternate `fs` implementation by passing in
+`opts.fs`. Your implementation should have `opts.fs.mkdir(path, mode, cb)` and
+`opts.fs.stat(path, cb)`.
+
+## mkdirp.sync(dir, opts)
+
+Synchronously create a new directory and any necessary subdirectories at `dir`
+with octal permission string `opts.mode`. If `opts` is a non-object, it will be
+treated as the `opts.mode`.
+
+If `opts.mode` isn't specified, it defaults to `0777`.
+
+Returns the first directory that had to be created, if any.
+
+You can optionally pass in an alternate `fs` implementation by passing in
+`opts.fs`. Your implementation should have `opts.fs.mkdirSync(path, mode)` and
+`opts.fs.statSync(path)`.
+
+# usage
+
+This package also ships with a `mkdirp` command.
+
+```
+usage: mkdirp [DIR1,DIR2..] {OPTIONS}
+
+  Create each supplied directory including any necessary parent directories that
+  don't yet exist.
+  
+  If the directory already exists, do nothing.
+
+OPTIONS are:
+
+  -m, --mode   If a directory needs to be created, set the mode as an octal
+               permission string.
+
+```
+
+# install
+
+With [npm](http://npmjs.org) do:
+
+```
+npm install mkdirp
+```
+
+to get the library, or
+
+```
+npm install -g mkdirp
+```
+
+to get the command.
+
+# license
+
+MIT
diff --git a/backend/node_modules/moment/CHANGELOG.md b/backend/node_modules/moment/CHANGELOG.md
new file mode 100644
index 0000000..90933d6
--- /dev/null
+++ b/backend/node_modules/moment/CHANGELOG.md
@@ -0,0 +1,996 @@
+Changelog
+=========
+
+### 2.30.1
+* Release Dec 27, 2023
+* Revert https://github.com/moment/moment/pull/5827, because it's breaking
+  a lot of TS code.
+
+### 2.30.0 [Full changelog](https://gist.github.com/ichernev/e277bcd1f0eeabb834f60a777237925a)
+* Release Dec 26, 2023
+
+### 2.29.4
+
+* Release Jul 6, 2022
+  * [#6015](https://github.com/moment/moment/pull/6015) [bugfix] Fix ReDoS in preprocessRFC2822 regex
+
+### 2.29.3 [Full changelog](https://gist.github.com/ichernev/edebd440f49adcaec72e5e77b791d8be)
+
+* Release Apr 17, 2022
+  * [#5995](https://github.com/moment/moment/pull/5995) [bugfix] Remove const usage
+  * [#5990](https://github.com/moment/moment/pull/5990) misc: fix advisory link
+
+
+### 2.29.2 [See full changelog](https://gist.github.com/ichernev/1904b564f6679d9aac1ae08ce13bc45c)
+
+* Release Apr 3 2022
+
+Address https://github.com/moment/moment/security/advisories/GHSA-8hfj-j24r-96c4
+
+### 2.29.1 [See full changelog](https://gist.github.com/marwahaha/cc478ba01a1292ab4bd4e861d164d99b)
+
+* Release Oct 6, 2020
+
+Updated deprecation message, bugfix in hi locale
+
+### 2.29.0 [See full changelog](https://gist.github.com/marwahaha/b0111718641a6461800066549957ec14)
+
+* Release Sept 22, 2020
+
+New locales (es-mx, bn-bd).
+Minor bugfixes and locale improvements.
+More tests.
+Moment is in maintenance mode. Read more at this link:
+https://momentjs.com/docs/#/-project-status/
+
+### 2.28.0 [See full changelog](https://gist.github.com/marwahaha/028fd6c2b2470b2804857cfd63c0e94f)
+
+* Release Sept 13, 2020
+
+Fix bug where .format() modifies original instance, and locale updates
+
+### 2.27.0 [See full changelog](https://gist.github.com/marwahaha/5100c9c2f42019067b1f6cefc333daa7)
+
+* Release June 18, 2020
+
+Added Turkmen locale, other locale improvements, slight TypeScript fixes
+
+### 2.26.0 [See full changelog](https://gist.github.com/marwahaha/0725c40740560854a849b096ea7b7590)
+
+* Release May 19, 2020
+
+TypeScript fixes and many locale improvements
+
+### 2.25.3
+
+* Release May 4, 2020
+
+Remove package.json module property. It looks like webpack behaves differently
+for modules loaded via module vs jsnext:main.
+
+### 2.25.2
+
+* Release May 4, 2020
+
+This release includes ES Module bundled moment, separate from it's source code
+under dist/ folder. This might alleviate issues with finding the `./locale
+subfolder for loading locales. This might also mean now webpack will bundle all
+locales automatically, unless told otherwise.
+
+### 2.25.1
+
+* Release May 1, 2020
+
+This is a quick patch release to address some of the issues raised after
+releasing 2.25.0.
+
+* [2e268635](https://github.com/moment/moment/commit/2e268635) [misc] Revert #5269 due to webpack warning
+* [226799e1](https://github.com/moment/moment/commit/226799e1) [locale] fil: Fix metadata comment
+* [a83a521](https://github.com/moment/moment/commit/a83a521) [bugfix] Fix typeoff usages
+* [e324334](https://github.com/moment/moment/commit/e324334) [pkg] Add ts3.1-typings in npm package
+* [28cc23e](https://github.com/moment/moment/commit/28cc23e) [misc] Remove deleted generated locale en-SG
+
+### 2.25.0 [See full changelog](https://gist.github.com/ichernev/6148e64df2427e455b10ce6a18de1a65)
+
+* Release May 1, 2020
+
+* [#4611](https://github.com/moment/moment/issues/4611) [022dc038](https://github.com/moment/moment/commit/022dc038) [feature] Support for strict string parsing, fixes [#2469](https://github.com/moment/moment/issues/2469)
+* [#4599](https://github.com/moment/moment/issues/4599) [4b615b9d](https://github.com/moment/moment/commit/4b615b9d) [feature] Add support for eras in en and jp
+* [#4296](https://github.com/moment/moment/issues/4296) [757d4ff8](https://github.com/moment/moment/commit/757d4ff8) [feature] Accept custom relative thresholds in duration.humanize
+
+* 18 bigfixes
+* 36 locale fixes
+* 5 new locales (oc-lnc, zh-mo, en-in, gom-deva, fil)
+
+### 2.24.0 [See full changelog](https://gist.github.com/marwahaha/12366fe45bee328f33acf125d4cd540e)
+
+* Release Jan 21, 2019
+
+* [#4338](https://github.com/moment/moment/pull/4338) [bugfix] Fix startOf/endOf DST issues while boosting performance
+* [#4553](https://github.com/moment/moment/pull/4553) [feature] Add localeSort param to Locale weekday methods
+* [#4887](https://github.com/moment/moment/pull/4887) [bugfix] Make Duration#as work with quarters
+* 3 new locales (it-ch, ga, en-SG)
+* Lots of locale improvements
+
+### 2.23.0 [See full changelog](https://gist.github.com/marwahaha/eadb7ac11b761290399a576f8b2419a5)
+
+* Release Dec 12, 2018
+
+* [#4863](https://github.com/moment/moment/pull/4863) [new locale] added Kurdish language (ku)
+* [#4417](https://github.com/moment/moment/pull/4417) [bugfix] isBetween should return false for invalid dates
+* [#4700](https://github.com/moment/moment/pull/4700) [bugfix] Fix [#4698](https://github.com/moment/moment/pull/4698): Use ISO WeekYear for HTML5_FMT.WEEK
+* [#4563](https://github.com/moment/moment/pull/4563) [feature] Fix [#4518](https://github.com/moment/moment/pull/4518): Add support to add/subtract ISO weeks
+* other locale changes, build process changes, typos
+
+### 2.22.2 [See full changelog](https://gist.github.com/marwahaha/4d992c13c2dbc0f59d4d8acae1dc6d3a)
+
+* Release May 31, 2018
+
+* [#4564](https://github.com/moment/moment/pull/4564) [bugfix] Avoid using trim()
+* [#4453](https://github.com/moment/moment/pull/4453) [bugfix] Treat periods as periods, not regex-anything period, for weekday parsing in strict mode.
+* Minor locale improvements (pa-in, be, az)
+
+### 2.22.1 [See full changelog](https://gist.github.com/marwahaha/ff2cd13d0eda08afb7a237b10aae558c)
+
+* Release Apr 14, 2018
+
+* [#4495](https://github.com/moment/moment/pull/4495) [bugfix] Added HTML5_FMT to moment.d.ts
+* Minor locale improvements
+* QUnit upgrade and coveralls reporting
+
+### 2.22.0 [See full changelog](https://gist.github.com/marwahaha/ae895025dac3f0641fa9ec2e36d282bb)
+
+* Release Mar 30, 2018
+
+* [#4423](https://github.com/moment/moment/pull/4423) [new locale] Added Mongolian locale mn
+* Various locale improvements
+* Minor misc changes
+
+### 2.21.0 [See full changelog](https://gist.github.com/marwahaha/80d19ef882b71df1948df7865efdd40e)
+
+* Release Mar 2, 2018
+
+* [#4391](https://github.com/moment/moment/pull/4391) [bugfix] Fix [#4390](https://github.com/moment/moment/pull/4390): use offset properly in toISOString
+* [#4310](https://github.com/moment/moment/pull/4310) [bugfix] Fix [#3883](https://github.com/moment/moment/pull/3883) lazy load parentLocale in defineLocale, fallback to global if missing
+* [#4085](https://github.com/moment/moment/pull/4085) [misc] Print console warning when setting non-existent locales
+* [#4371](https://github.com/moment/moment/pull/4371) [misc] fix deprecated rollup options
+* New locales: ug-cn, en-il, tg
+* Various locale improvements
+
+### 2.20.1 [See changelog](https://gist.github.com/marwahaha/d72c1cb22076373be889b16272cbd187)
+
+* Release Dec 18, 2017
+
+* [#4359](https://github.com/moment/moment/pull/4359) [locale] Fix Arabic locale for months (again)
+* [#4357](https://github.com/moment/moment/pull/4357) [misc] Add optional parameter keepOffset to toISOString
+
+### 2.20.0 [See full changelog](https://gist.github.com/marwahaha/e0d4135fbf8bb75fa85c4aa2bddc5031)
+
+* Release Dec 16, 2017
+
+* [#4312](https://github.com/moment/moment/pull/4312) [bugfix] Fix [#4251](https://github.com/moment/moment/pull/4251): Avoid RFC2822 in utc() test
+* [#4240](https://github.com/moment/moment/pull/4240) [bugfix] Fix incorrect strict parsing with full-width parentheses
+* [#4341](https://github.com/moment/moment/pull/4341) [feature] Prevent toISOString converting to UTC (issue [#1751](https://github.com/moment/moment/pull/1751))
+* [#4154](https://github.com/moment/moment/pull/4154) [feature] add format constants to support output to HTML5 input type formats (see [#3928](https://github.com/moment/moment/pull/3928))
+* [#4143](https://github.com/moment/moment/pull/4143) [new locale] mt: Maltese language
+* [#4183](https://github.com/moment/moment/pull/4183) [locale] Relative seconds i18n
+* Various other locale improvements
+
+### 2.19.4 [See changelog](https://gist.github.com/marwahaha/d3b7b0ddf4bdae512244f16e8cc59efb)
+
+* Release Dec 10, 2017
+
+* [#4332](https://github.com/moment/moment/pull/4332) [bugfix] Fix weekday verification for UTC and offset days (fixes [#4227](https://github.com/moment/moment/pull/4227))
+* [#4336](https://github.com/moment/moment/pull/4336) [bugfix] Fix [#4334](https://github.com/moment/moment/pull/4334): Remove unused function call argument
+* [#4246](https://github.com/moment/moment/pull/4246) [misc] Add 'ss' relative time key to typescript definition
+
+### 2.19.3 [See changelog](https://gist.github.com/marwahaha/3654006bc0c2e522451c08d12c0bfabf)
+
+* Release Nov 29, 2017
+
+* [#4326](https://github.com/moment/moment/pull/4326) [bugfix] Fix for ReDOS vulnerability (see [#4163](https://github.com/moment/moment/issues/4163))
+* [#4289](https://github.com/moment/moment/pull/4289) [misc] Fix spelling and formatting for U.S. for es-us
+
+### 2.19.2 [See changelog (it's the same >:D)](https://gist.github.com/ichernev/76b1a3f33d3a8ff9665ce434a45221d0)
+
+* Release Nov 11, 2017
+
+* [#4255](https://github.com/moment/moment/pull/4255) [bugfix] Fix year setter for random days in a leap year, fixes [#4238](https://github.com/moment/moment/issues/4238)
+* [#4242](https://github.com/moment/moment/pull/4242) [bugfix] updateLocale now tries to load parent, fixes [#3626](https://github.com/moment/moment/issues/3626)
+
+### 2.19.1
+
+* Release Oct 11, 2017
+
+Make react native and webpack both work
+* #4225 #4226 #4232
+
+### 2.19.0 [See full changelog](https://gist.github.com/ichernev/5f3f4eb02761b4f765a0cccf02cec603)
+
+* Release Oct 10, 2017
+
+## Fix React Native 0.49+ crash
+* [#4213](https://github.com/moment/moment/pull/4213) [critical] Rename dynamic
+  require to avoid React Native crash
+* [#4214](https://github.com/moment/moment/pull/4214) [fixup] Move require
+  rename inside try/catch, fixes
+  [#4213](https://github.com/moment/moment/issues/4213)
+
+## Features
+
+* [#3735](https://github.com/moment/moment/pull/3735) [feature] Ignore NaN values in setters
+* [#4106](https://github.com/moment/moment/pull/4106) [fixup] Drop isNumeric utility fn, fixes [#3735](https://github.com/moment/moment/issues/3735)
+* [#4080](https://github.com/moment/moment/pull/4080) [feature] Implement a clone method for durations, fixes [#4078](https://github.com/moment/moment/issues/4078)
+* [#4215](https://github.com/moment/moment/pull/4215) [misc] TS: Add duration.clone(), for [#4080](https://github.com/moment/moment/issues/4080)
+
+## Packaging
+
+* [#4003](https://github.com/moment/moment/pull/4003) [pkg] bower: Remove tests from package
+* [#3904](https://github.com/moment/moment/pull/3904) [pkg] jsnext:main -> module in package.json
+* [#4060](https://github.com/moment/moment/pull/4060) [pkg] Account for new rollup interface
+
+Bugfixes, new locales, locale fixes etc...
+
+### 2.18.1
+
+* Release Mar 22, 2017
+
+* [#3853](https://github.com/moment/moment/pull/3853) [misc] Fix invalid whitespace character causing inability to parse
+  moment.js
+
+### 2.18.0 [See full changelog](https://gist.github.com/ichernev/78920c5a1e419fb28c6e4546d1b7235c)
+
+* Release Mar 18, 2017
+
+## Features
+
+* [#3708](https://github.com/moment/moment/pull/3708) [feature] RFC2822 parsing
+* [#3611](https://github.com/moment/moment/pull/3611) [feature] Durations gain validity
+* [#3738](https://github.com/moment/moment/pull/3738) [feature] Enable relative time for multiple seconds, request [#2558](https://github.com/moment/moment/issues/2558)
+* [#3766](https://github.com/moment/moment/pull/3766) [feature] Add support for k and kk format parsing
+
+## Bugfixes
+
+* [#3643](https://github.com/moment/moment/pull/3643) [bugfix] Fixes [#3520](https://github.com/moment/moment/issues/3520), parseZone incorrectly handled minutes under 16
+* [#3710](https://github.com/moment/moment/pull/3710) [bugfix] Fixes [#3632](https://github.com/moment/moment/issues/3632), toISOString returns null for invalid date
+* [#3787](https://github.com/moment/moment/pull/3787) [bugfix] Fixes [#3717](https://github.com/moment/moment/issues/3717), ensure day-of-year is non-zero
+* [#3780](https://github.com/moment/moment/pull/3780) [bugfix] Fixes [#3765](https://github.com/moment/moment/issues/3765): Ensure year 0 is formatted with YYYY
+* [#3806](https://github.com/moment/moment/pull/3806) [bugfix] Fixes [#3805](https://github.com/moment/moment/issues/3805), fix locale month getters for standalone/format cases
+
+7 new locales, many locale improvements and some misc changes
+
+### 2.17.1 [Also available here](https://gist.github.com/ichernev/f38280b2b29c4932914a6d3a4e50bfb2)
+* Release Dec 03, 2016
+
+* [#3638](https://github.com/moment/moment/pull/3638) [misc] TS: Make typescript definitions work with 1.x
+* [#3628](https://github.com/moment/moment/pull/3628) [misc] Adds "sign CLA" link to `CONTRIBUTING.md`
+* [#3640](https://github.com/moment/moment/pull/3640) [misc] Fix locale issues
+
+### 2.17.0 [Also available here](https://gist.github.com/ichernev/ed58f76fb95205eeac653d719972b90c)
+* Release Nov 22, 2016
+
+* [#3435](https://github.com/moment/moment/pull/3435) [new locale] yo: Yoruba (Nigeria) locale
+* [#3595](https://github.com/moment/moment/pull/3595) [bugfix] Fix accidental reference to global "value" variable
+* [#3506](https://github.com/moment/moment/pull/3506) [bugfix] Fix invalid moments returning valid dates to method calls
+* [#3563](https://github.com/moment/moment/pull/3563) [locale] ca: Change future relative time
+* [#3504](https://github.com/moment/moment/pull/3504) [tests] Fixes [#3463](https://github.com/moment/moment/issues/3463), parseZone not handling Z correctly (tests only)
+* [#3591](https://github.com/moment/moment/pull/3591) [misc] typescript: update typescript to 2.0.8, add strictNullChecks=true
+* [#3597](https://github.com/moment/moment/pull/3597) [misc] Fixed capitalization in nuget spec
+
+### 2.16.0 [See full changelog](https://gist.github.com/ichernev/17bffc1005a032cb1a8ac4c1558b4994)
+* Release Nov 9, 2016
+
+## Features
+* [#3530](https://github.com/moment/moment/pull/3530) [feature] Check whether input is date before checking if format is array
+* [#3515](https://github.com/moment/moment/pull/3515) [feature] Fix [#2300](https://github.com/moment/moment/issues/2300): Default to current week.
+
+## Bugfixes
+* [#3546](https://github.com/moment/moment/pull/3546) [bugfix] Implement lazy-loading of child locales with missing prents
+* [#3523](https://github.com/moment/moment/pull/3523) [bugfix] parseZone should handle UTC
+* [#3502](https://github.com/moment/moment/pull/3502) [bugfix] Fix [#3500](https://github.com/moment/moment/issues/3500): ISO 8601 parsing should match the full string, not the beginning of the string.
+* [#3581](https://github.com/moment/moment/pull/3581) [bugfix] Fix parseZone, redo [#3504](https://github.com/moment/moment/issues/3504), fix [#3463](https://github.com/moment/moment/issues/3463)
+
+## New Locales
+* [#3416](https://github.com/moment/moment/pull/3416) [new locale] nl-be: Dutch (Belgium) locale
+* [#3393](https://github.com/moment/moment/pull/3393) [new locale] ar-dz: Arabic (Algeria) locale
+* [#3342](https://github.com/moment/moment/pull/3342) [new locale] tet: Tetun Dili (East Timor) locale
+
+And more locale, build and typescript improvements
+
+### 2.15.2
+* Release Oct 23, 2016
+* [#3525](https://github.com/moment/moment/pull/3525) Speedup month standalone/format regexes **(IMPORTANT)**
+* [#3466](https://github.com/moment/moment/pull/3466) Fix typo of Javanese
+
+### 2.15.1
+* Release Sept 20, 2016
+* [#3438](https://github.com/moment/moment/pull/3438) Fix locale autoload, revert [#3344](https://github.com/moment/moment/pull/3344)
+
+### 2.15.0 [See full changelog](https://gist.github.com/ichernev/10e1c5bf647545c72ca30e9628a09ed3)
+- Release Sept 12, 2016
+
+## New Locales
+* [#3255](https://github.com/moment/moment/pull/3255) [new locale] mi: Maori language
+* [#3267](https://github.com/moment/moment/pull/3267) [new locale] ar-ly: Arabic (Libya) locale
+* [#3333](https://github.com/moment/moment/pull/3333) [new locale] zh-hk: Chinese (Hong Kong) locale
+
+## Bugfixes
+* [#3276](https://github.com/moment/moment/pull/3276) [bugfix] duration: parser: Support ms durations in .NET syntax
+* [#3312](https://github.com/moment/moment/pull/3312) [bugfix] locales: Enable locale-data getters without moment (fixes [#3284](https://github.com/moment/moment/issues/3284))
+* [#3381](https://github.com/moment/moment/pull/3381) [bugfix] parsing: Fix parseZone without timezone in string, fixes [#3083](https://github.com/moment/moment/issues/3083)
+* [#3383](https://github.com/moment/moment/pull/3383) [bugfix] toJSON: Fix isValid so that toJSON works after a moment is frozen
+* [#3427](https://github.com/moment/moment/pull/3427) [bugfix] ie8: Fix IE8 (regression in 2.14.x)
+
+## Packaging
+* [#3299](https://github.com/moment/moment/pull/3299) [pkg] npm: Do not include .npmignore in npm package
+* [#3273](https://github.com/moment/moment/pull/3273) [pkg] jspm: Include moment.d.ts file in package
+* [#3344](https://github.com/moment/moment/pull/3344) [pkg] exports: use module.require for nodejs
+
+Also some locale and typescript improvements
+
+### 2.14.1
+- Release July 20, 2016
+* [#3280](https://github.com/moment/moment/pull/3280) Fix typescript definitions
+
+
+### 2.14.0 [See full changelog](https://gist.github.com/ichernev/812e79ac36a7829a22598fe964bfc18a)
+
+- Release July 20, 2016
+
+## New Features
+* [#3233](https://github.com/moment/moment/pull/3233) Introduce month.isFormat for format/standalone discovery
+* [#2848](https://github.com/moment/moment/pull/2848) Allow user to get/set the rounding method used when calculating relative time
+* [#3112](https://github.com/moment/moment/pull/3112) optimize configFromStringAndFormat
+* [#3147](https://github.com/moment/moment/pull/3147) Call calendar format function with moment context
+* [#3160](https://github.com/moment/moment/pull/3160) deprecate isDSTShifted
+* [#3175](https://github.com/moment/moment/pull/3175) make moment calendar extensible with ad-hoc options
+* [#3191](https://github.com/moment/moment/pull/3191) toDate returns a copy of the internal date object
+* [#3192](https://github.com/moment/moment/pull/3192) Adding support for rollup import.
+* [#3238](https://github.com/moment/moment/pull/3238) Handle empty object and empty array for creation as now
+* [#3082](https://github.com/moment/moment/pull/3082) Use relative AMD moment dependency
+
+## Bugfixes
+* [#3241](https://github.com/moment/moment/pull/3241) Escape all 24 mixed pieces, not only first 12 in computeMonthsParse
+* [#3008](https://github.com/moment/moment/pull/3008) Object setter orders sets based on size of unit
+* [#3177](https://github.com/moment/moment/pull/3177) Bug Fix [#2704](https://github.com/moment/moment/pull/2704) - isoWeekday(String) inconsistent with isoWeekday(Number)
+* [#3230](https://github.com/moment/moment/pull/3230) fix passing date with format string to ignore format string
+* [#3232](https://github.com/moment/moment/pull/3232) Fix negative 0 in certain diff cases
+* [#3235](https://github.com/moment/moment/pull/3235) Use proper locale inheritance for the base locale, fixes [#3137](https://github.com/moment/moment/pull/3137)
+
+Plus es-do locale and locale bugfixes
+
+### 2.13.0 [See full changelog](https://gist.github.com/ichernev/0132fcf5b61f7fc140b0bb0090480d49)
+- Release April 18, 2016
+
+## Enhancements:
+* [#2982](https://github.com/moment/moment/pull/2982) Add 'date' as alias to 'day' for startOf() and endOf().
+* [#2955](https://github.com/moment/moment/pull/2955) Add parsing negative components in durations when ISO 8601
+* [#2991](https://github.com/moment/moment/pull/2991) isBetween support for both open and closed intervals
+* [#3105](https://github.com/moment/moment/pull/3105) Add localeSorted argument to weekday listers
+* [#3102](https://github.com/moment/moment/pull/3102) Add k and kk formatting tokens
+
+## Bugfixes
+* [#3109](https://github.com/moment/moment/pull/3109) Fix [#1756](https://github.com/moment/moment/issues/1756) Resolved thread-safe issue on server side.
+* [#3078](https://github.com/moment/moment/pull/3078) Fix parsing for months/weekdays with weird characters
+* [#3098](https://github.com/moment/moment/pull/3098) Use Z suffix when in UTC mode ([#3020](https://github.com/moment/moment/issues/3020))
+* [#2995](https://github.com/moment/moment/pull/2995) Fix floating point rounding errors in durations
+* [#3059](https://github.com/moment/moment/pull/3059) fix bug where diff returns -0 in month-related diffs
+* [#3045](https://github.com/moment/moment/pull/3045) Fix mistaking any input for 'a' token
+* [#2877](https://github.com/moment/moment/pull/2877) Use explicit .valueOf() calls instead of coercion
+* [#3036](https://github.com/moment/moment/pull/3036) Year setter should keep time when DST changes
+
+Plus 3 new locales and locale fixes.
+
+### 2.12.0 [See full changelog](https://gist.github.com/ichernev/6e5bfdf8d6522fc4ac73)
+
+- Release March 7, 2016
+
+## Enhancements:
+* [#2932](https://github.com/moment/moment/pull/2932) List loaded locales
+* [#2818](https://github.com/moment/moment/pull/2818) Parse ISO-8061 duration containing both day and week values
+* [#2774](https://github.com/moment/moment/pull/2774) Implement locale inheritance and locale updating
+
+## Bugfixes:
+* [#2970](https://github.com/moment/moment/pull/2970) change add subtract to handle decimal values by rounding
+* [#2887](https://github.com/moment/moment/pull/2887) Fix toJSON casting of invalid moment
+* [#2897](https://github.com/moment/moment/pull/2897) parse string arguments for month() correctly, closes #2884
+* [#2946](https://github.com/moment/moment/pull/2946) Fix usage suggestions for min and max
+
+## New locales:
+* [#2917](https://github.com/moment/moment/pull/2917) Locale Punjabi(Gurmukhi) India format conversion
+
+And more
+
+### 2.11.2 (Fix ReDoS attack vector)
+
+- Release February 7, 2016
+
+* [#2939](https://github.com/moment/moment/pull/2939) use full-string match to speed up aspnet regex match
+
+### 2.11.1 [See full changelog](https://gist.github.com/ichernev/8ec3ee25b749b4cff3c2)
+
+- Release January 9, 2016
+
+## Bugfixes:
+* [#2881](https://github.com/moment/moment/pull/2881) Revert "Merge pull request #2746 from mbad0la:develop" Sep->Sept
+* [#2868](https://github.com/moment/moment/pull/2868) Add format and parse token Y, so it actually works
+* [#2865](https://github.com/moment/moment/pull/2865) Use typeof checks for undefined for global variables
+* [#2858](https://github.com/moment/moment/pull/2858) Fix Date mocking regression introduced in 2.11.0
+* [#2864](https://github.com/moment/moment/pull/2864) Include changelog in npm release
+* [#2830](https://github.com/moment/moment/pull/2830) dep: add grunt-cli
+* [#2869](https://github.com/moment/moment/pull/2869) Fix months parsing for some locales
+
+### 2.11.0 [See full changelog](https://gist.github.com/ichernev/6594bc29719dde6b2f66)
+
+- Release January 4, 2016
+
+* [#2624](https://github.com/moment/moment/pull/2624) Proper handling of invalid moments
+* [#2634](https://github.com/moment/moment/pull/2634) Fix strict month parsing issue in cs,ru,sk
+* [#2735](https://github.com/moment/moment/pull/2735) Reset the locale back to 'en' after defining all locales in min/locales.js
+* [#2702](https://github.com/moment/moment/pull/2702) Week rework
+* [#2746](https://github.com/moment/moment/pull/2746) Changed September Abbreviation to "Sept" in locale-specific english
+  files and default locale file
+* [#2646](https://github.com/moment/moment/pull/2646) Fix [#2645](https://github.com/moment/moment/pull/2645) - invalid dates pre-1970
+
+* [#2641](https://github.com/moment/moment/pull/2641) Implement basic format and comma as ms separator in ISO 8601
+* [#2665](https://github.com/moment/moment/pull/2665) Implement stricter weekday parsing
+* [#2700](https://github.com/moment/moment/pull/2700) Add [Hh]mm and [Hh]mmss formatting tokens, so you can parse 123 with
+  hmm for example
+* [#2565](https://github.com/moment/moment/pull/2565) [#2835](https://github.com/moment/moment/pull/2835) Expose arguments used for moment creation with creationData
+  (fix [#2443](https://github.com/moment/moment/pull/2443))
+* [#2648](https://github.com/moment/moment/pull/2648) fix issue [#2640](https://github.com/moment/moment/pull/2640): support instanceof operator
+* [#2709](https://github.com/moment/moment/pull/2709) Add isSameOrAfter and isSameOrBefore comparison methods
+* [#2721](https://github.com/moment/moment/pull/2721) Fix moment creation from object with strings values
+* [#2740](https://github.com/moment/moment/pull/2740) Enable 'd hh:mm:ss.sss' format for durations
+* [#2766](https://github.com/moment/moment/pull/2766) [#2833](https://github.com/moment/moment/pull/2833) Alternate Clock Source Support
+
+### 2.10.6
+
+- Release July 28, 2015
+
+[#2515](https://github.com/moment/moment/pull/2515) Fix regression introduced
+in `2.10.5` related to `moment.ISO_8601` parsing.
+
+### 2.10.5 [See full changelog](https://gist.github.com/ichernev/6ec13ac7efc396da44b2)
+
+- Release July 26, 2015
+
+Important changes:
+* [#2357](https://github.com/moment/moment/pull/2357) Improve unit bubbling for ISO dates
+  this fixes day to year conversions to work around end-of-year (~365 days). As
+  a side effect 365 days is 11 months and 30 days, and 366 days is one year.
+* [#2438](https://github.com/moment/moment/pull/2438) Fix inconsistent moment.min and moment.max results
+  Return invalid result if any of the inputs is invalid
+* [#2494](https://github.com/moment/moment/pull/2494) Fix two digit year parsing with YYYY format
+  This brings the benefits of YY to YYYY
+* [#2368](https://github.com/moment/moment/pull/2368) perf: use faster form of copying dates, across the board improvement
+
+
+### 2.10.3 [See full changelog](https://gist.github.com/ichernev/f264b9bed5b00f8b1b7f)
+
+- Release May 13, 2015
+
+* add `moment.fn.to` and `moment.fn.toNow` (similar to `from` and `fromNow`)
+* new locales (Sinhalese (si), Montenegrin (me), Javanese (ja))
+* performance improvements
+
+### 2.10.2
+
+- Release April 9, 2015
+
+* fixed moment-with-locales in browser env caused by esperanto change
+
+### 2.10.1
+
+* regression: Add moment.duration.fn back
+
+### 2.10.0
+
+Ported code to es6 modules.
+
+### 2.9.0 [See full changelog](https://gist.github.com/ichernev/0c9a9b49951111a27ce7)
+
+- Release January 8, 2015
+
+languages:
+* [2104](https://github.com/moment/moment/issues/2104) Frisian (fy) language file with unit test
+* [2097](https://github.com/moment/moment/issues/2097) add ar-tn locale
+
+deprecations:
+* [2074](https://github.com/moment/moment/issues/2074) Implement `moment.fn.utcOffset`, deprecate `moment.fn.zone`
+
+features:
+* [2088](https://github.com/moment/moment/issues/2088) add moment.fn.isBetween
+* [2054](https://github.com/moment/moment/issues/2054) Call updateOffset when creating moment (needed for default timezone in
+  moment-timezone)
+* [1893](https://github.com/moment/moment/issues/1893) Add moment.isDate method
+* [1825](https://github.com/moment/moment/issues/1825) Implement toJSON function on Duration
+* [1809](https://github.com/moment/moment/issues/1809) Allowing moment.set() to accept a hash of units
+* [2128](https://github.com/moment/moment/issues/2128) Add firstDayOfWeek, firstDayOfYear locale getters
+* [2131](https://github.com/moment/moment/issues/2131) Add quarter diff support
+
+Some bugfixes and language improvements -- [full changelog](https://gist.github.com/ichernev/0c9a9b49951111a27ce7)
+
+### 2.8.4 [See full changelog](https://gist.github.com/ichernev/a4fcb0a46d74e4b9b996)
+
+- Release November 19, 2014
+
+Features:
+
+* [#2000](https://github.com/moment/moment/issues/2000) Add LTS localised format that includes seconds
+* [#1960](https://github.com/moment/moment/issues/1960) added formatToken 'x' for unix offset in milliseconds #1938
+* [#1965](https://github.com/moment/moment/issues/1965) Support 24:00:00.000 to mean next day, at midnight.
+* [#2002](https://github.com/moment/moment/issues/2002) Accept 'date' key when creating moment with object
+* [#2009](https://github.com/moment/moment/issues/2009) Use native toISOString when we can
+
+Some bugfixes and language improvements -- [full changelog](https://gist.github.com/ichernev/a4fcb0a46d74e4b9b996)
+
+### 2.8.3
+
+- Release September 5, 2014
+
+Bugfixes:
+
+* [#1801](https://github.com/moment/moment/issues/1801) proper pluralization for Arabic
+* [#1833](https://github.com/moment/moment/issues/1833) improve spm integration
+* [#1871](https://github.com/moment/moment/issues/1871) fix zone bug caused by Firefox 24
+* [#1882](https://github.com/moment/moment/issues/1882) Use hh:mm in Czech
+* [#1883](https://github.com/moment/moment/issues/1883) Fix 2.8.0 regression in duration as conversions
+* [#1890](https://github.com/moment/moment/issues/1890) Faster travis builds
+* [#1892](https://github.com/moment/moment/issues/1892) Faster isBefore/After/Same
+* [#1848](https://github.com/moment/moment/issues/1848) Fix flaky month diffs
+* [#1895](https://github.com/moment/moment/issues/1895) Fix 2.8.0 regression in moment.utc with format array
+* [#1896](https://github.com/moment/moment/issues/1896) Support setting invalid instance locale (noop)
+* [#1897](https://github.com/moment/moment/issues/1897) Support moment([str]) in addition to moment([int])
+
+### 2.8.2
+
+- Release August 22, 2014
+
+Minor bugfixes:
+
+* [#1874](https://github.com/moment/moment/issues/1874) use `Object.prototype.hasOwnProperty`
+  instead of `obj.hasOwnProperty` (ie8 bug)
+* [#1873](https://github.com/moment/moment/issues/1873) add `duration#toString()`
+* [#1859](https://github.com/moment/moment/issues/1859) better month/weekday names in norwegian
+* [#1812](https://github.com/moment/moment/issues/1812) meridiem parsing for greek
+* [#1804](https://github.com/moment/moment/issues/1804) spanish del -> de
+* [#1800](https://github.com/moment/moment/issues/1800) korean LT improvement
+
+### 2.8.1
+
+- Release August 1, 2014
+
+* bugfix [#1813](https://github.com/moment/moment/issues/1813): fix moment().lang([key]) incompatibility
+
+### 2.8.0 [See changelog](https://gist.github.com/ichernev/ac3899324a5fa6c8c9b4)
+
+- Release July 31, 2014
+
+* incompatible changes
+    * [#1761](https://github.com/moment/moment/issues/1761): moments created without a language are no longer following the global language, in case it changes. Only newly created moments take the global language by default. In case you're affected by this, wait, comment on [#1797](https://github.com/moment/moment/issues/1797) and wait for a proper reimplementation
+    * [#1642](https://github.com/moment/moment/issues/1642): 45 days is no longer "a month" according to humanize, cutoffs for month, and year have changed. Hopefully your code does not depend on a particular answer from humanize (which it shouldn't anyway)
+    * [#1784](https://github.com/moment/moment/issues/1784): if you use the human readable English datetime format in a weird way (like storing them in a database) that would break when the format changes you're at risk.
+
+* deprecations (old behavior will be dropped in 3.0)
+    * [#1761](https://github.com/moment/moment/issues/1761) `lang` is renamed to `locale`, `langData` -> `localeData`. Also there is now `defineLocale` that should be used when creating new locales
+    * [#1763](https://github.com/moment/moment/issues/1763) `add(unit, value)` and `subtract(unit, value)` are now deprecated. Use `add(value, unit)` and `subtract(value, unit)` instead.
+    * [#1759](https://github.com/moment/moment/issues/1759) rename `duration.toIsoString` to `duration.toISOString`. The js standard library and moment's `toISOString` follow that convention.
+
+* new locales
+    * [#1789](https://github.com/moment/moment/issues/1789) Tibetan (bo)
+    * [#1786](https://github.com/moment/moment/issues/1786) Africaans (af)
+    * [#1778](https://github.com/moment/moment/issues/1778) Burmese (my)
+    * [#1727](https://github.com/moment/moment/issues/1727) Belarusian (be)
+
+* bugfixes, locale bugfixes, performance improvements, features
+
+### 2.7.0 [See changelog](https://gist.github.com/ichernev/b0a3d456d5a84c9901d7)
+
+- Release June 12, 2014
+
+* new languages
+
+  * [#1678](https://github.com/moment/moment/issues/1678) Bengali (bn)
+  * [#1628](https://github.com/moment/moment/issues/1628) Azerbaijani (az)
+  * [#1633](https://github.com/moment/moment/issues/1633) Arabic, Saudi Arabia (ar-sa)
+  * [#1648](https://github.com/moment/moment/issues/1648) Austrian German (de-at)
+
+* features
+
+  * [#1663](https://github.com/moment/moment/issues/1663) configurable relative time thresholds
+  * [#1554](https://github.com/moment/moment/issues/1554) support anchor time in moment.calendar
+  * [#1693](https://github.com/moment/moment/issues/1693) support moment.ISO_8601 as parsing format
+  * [#1637](https://github.com/moment/moment/issues/1637) add moment.min and moment.max and deprecate min/max instance methods
+  * [#1704](https://github.com/moment/moment/issues/1704) support string value in add/subtract
+  * [#1647](https://github.com/moment/moment/issues/1647) add spm support (package manager)
+
+* bugfixes
+
+### 2.6.0 [See changelog](https://gist.github.com/ichernev/10544682)
+
+- Release April 12 , 2014
+
+* languages
+  * [#1529](https://github.com/moment/moment/issues/1529) Serbian-Cyrillic (sr-cyr)
+  * [#1544](https://github.com/moment/moment/issues/1544), [#1546](https://github.com/moment/moment/issues/1546) Khmer Cambodia (km)
+
+* features
+    * [#1419](https://github.com/moment/moment/issues/1419), [#1468](https://github.com/moment/moment/issues/1468), [#1467](https://github.com/moment/moment/issues/1467), [#1546](https://github.com/moment/moment/issues/1546) better handling of timezone-d moments around DST
+    * [#1462](https://github.com/moment/moment/issues/1462) add weeksInYear and isoWeeksInYear
+    * [#1475](https://github.com/moment/moment/issues/1475) support ordinal parsing
+    * [#1499](https://github.com/moment/moment/issues/1499) composer support
+    * [#1577](https://github.com/moment/moment/issues/1577), [#1604](https://github.com/moment/moment/issues/1604) put Date parsing in moment.createFromInputFallback so it can be properly deprecated and controlled in the future
+    * [#1545](https://github.com/moment/moment/issues/1545) extract two-digit year parsing in moment.parseTwoDigitYear, so it can be overwritten
+    * [#1590](https://github.com/moment/moment/issues/1590) (see [#1574](https://github.com/moment/moment/issues/1574)) set AMD global before module definition to better support non AMD module dependencies used in AMD environment
+    * [#1589](https://github.com/moment/moment/issues/1589) remove global in Node.JS environment (was not working before, nobody complained, was scheduled for removal anyway)
+    * [#1586](https://github.com/moment/moment/issues/1586) support quarter setting and parsing
+
+* 18 bugs fixed
+
+### 2.5.1
+
+- Release January 22, 2014
+
+* languages
+  * [#1392](https://github.com/moment/moment/issues/1392) Armenian (hy-am)
+
+* bugfixes
+  * [#1429](https://github.com/moment/moment/issues/1429) fixes [#1423](https://github.com/moment/moment/issues/1423) weird chrome-32 bug with js object creation
+  * [#1421](https://github.com/moment/moment/issues/1421) remove html entities from Welsh
+  * [#1418](https://github.com/moment/moment/issues/1418) fixes [#1401](https://github.com/moment/moment/issues/1401) improved non-padded tokens in strict matching
+  * [#1417](https://github.com/moment/moment/issues/1417) fixes [#1404](https://github.com/moment/moment/issues/1404) handle buggy moment object created by property cloning
+  * [#1398](https://github.com/moment/moment/issues/1398) fixes [#1397](https://github.com/moment/moment/issues/1397) fix Arabic-like week number parsing
+  * [#1396](https://github.com/moment/moment/issues/1396) add leftZeroFill(4) to GGGG and gggg formats
+  * [#1373](https://github.com/moment/moment/issues/1373) use lowercase for months and days in Catalan
+
+* testing
+  * [#1374](https://github.com/moment/moment/issues/1374) run tests on multiple browser/os combos via SauceLabs and Travis
+
+### 2.5.0 [See changelog](https://gist.github.com/ichernev/8104451)
+
+- Release Dec 24, 2013
+
+* New languages
+  * Luxemburish (lb) [1247](https://github.com/moment/moment/issues/1247)
+  * Serbian (rs) [1319](https://github.com/moment/moment/issues/1319)
+  * Tamil (ta) [1324](https://github.com/moment/moment/issues/1324)
+  * Macedonian (mk) [1337](https://github.com/moment/moment/issues/1337)
+
+* Features
+  * [1311](https://github.com/moment/moment/issues/1311) Add quarter getter and format token `Q`
+  * [1303](https://github.com/moment/moment/issues/1303) strict parsing now respects number of digits per token (fix [1196](https://github.com/moment/moment/issues/1196))
+  * 0d30bb7 add jspm support
+  * [1347](https://github.com/moment/moment/issues/1347) improve zone parsing
+  * [1362](https://github.com/moment/moment/issues/1362) support merideam parsing in Korean
+
+* 22 bugfixes
+
+### 2.4.0
+
+- Release Oct 27, 2013
+
+* **Deprecate** globally exported moment, will be removed in next major
+* New languages
+  * Farose (fo) [#1206](https://github.com/moment/moment/issues/1206)
+  * Tagalog/Filipino (tl-ph) [#1197](https://github.com/moment/moment/issues/1197)
+  * Welsh (cy) [#1215](https://github.com/moment/moment/issues/1215)
+* Bugfixes
+  * properly handle Z at the end of iso RegExp [#1187](https://github.com/moment/moment/issues/1187)
+  * chinese meridian time improvements [#1076](https://github.com/moment/moment/issues/1076)
+  * fix language tests [#1177](https://github.com/moment/moment/issues/1177)
+  * remove some failing tests (that should have never existed :))
+    [#1185](https://github.com/moment/moment/issues/1185)
+    [#1183](https://github.com/moment/moment/issues/1183)
+  * handle russian noun cases in weird cases [#1195](https://github.com/moment/moment/issues/1195)
+
+### 2.3.1
+
+- Release Oct 9, 2013
+
+Removed a trailing comma [1169] and fixed a bug with `months`, `weekdays` getters [#1171](https://github.com/moment/moment/issues/1171).
+
+### 2.3.0 [See changelog](https://gist.github.com/ichernev/6864354)
+
+- Release Oct 7, 2013
+
+Changed isValid, added strict parsing.
+Week tokens parsing.
+
+### 2.2.1
+
+- Release Sep 12, 2013
+
+Fixed bug in string prototype test.
+Updated authors and contributors.
+
+### 2.2.0 [See changelog](https://gist.github.com/ichernev/00f837a9baf46a3565e4)
+
+- Release  Sep 11, 2013
+
+Added bower support.
+
+Language files now use UMD.
+
+Creating moment defaults to current date/month/year.
+
+Added a bundle of moment and all language files.
+
+### 2.1.0 [See changelog](https://gist.github.com/timrwood/b8c2d90d528eddb53ab5)
+
+- Release Jul 8, 2013
+
+Added better week support.
+
+Added ability to set offset with `moment#zone`.
+
+Added ability to set month or weekday from a string.
+
+Added `moment#min` and `moment#max`
+
+### 2.0.0 [See changelog](https://gist.github.com/timrwood/e72f2eef320ed9e37c51)
+
+- Release Feb 9, 2013
+
+Added short form localized tokens.
+
+Added ability to define language a string should be parsed in.
+
+Added support for reversed add/subtract arguments.
+
+Added support for `endOf('week')` and `startOf('week')`.
+
+Fixed the logic for `moment#diff(Moment, 'months')` and `moment#diff(Moment, 'years')`
+
+`moment#diff` now floors instead of rounds.
+
+Normalized `moment#toString`.
+
+Added `isSame`, `isAfter`, and `isBefore` methods.
+
+Added better week support.
+
+Added `moment#toJSON`
+
+Bugfix: Fixed parsing of first century dates
+
+Bugfix: Parsing 10Sep2001 should work as expected
+
+Bugfix: Fixed weirdness with `moment.utc()` parsing.
+
+Changed language ordinal method to return the number + ordinal instead of just the ordinal.
+
+Changed two digit year parsing cutoff to match strptime.
+
+Removed `moment#sod` and `moment#eod` in favor of `moment#startOf` and `moment#endOf`.
+
+Removed `moment.humanizeDuration()` in favor of `moment.duration().humanize()`.
+
+Removed the lang data objects from the top level namespace.
+
+Duplicate `Date` passed to `moment()` instead of referencing it.
+
+### 1.7.2 [See discussion](https://github.com/timrwood/moment/issues/456)
+
+- Release Oct 2, 2012
+
+Bugfixes
+
+### 1.7.1 [See discussion](https://github.com/timrwood/moment/issues/384)
+
+- Release Oct 1, 2012
+
+Bugfixes
+
+### 1.7.0 [See discussion](https://github.com/timrwood/moment/issues/288)
+
+- Release Jul 26, 2012
+
+Added `moment.fn.endOf()` and `moment.fn.startOf()`.
+
+Added validation via `moment.fn.isValid()`.
+
+Made formatting method 3x faster. http://jsperf.com/momentjs-cached-format-functions
+
+Add support for month/weekday callbacks in `moment.fn.format()`
+
+Added instance specific languages.
+
+Added two letter weekday abbreviations with the formatting token `dd`.
+
+Various language updates.
+
+Various bugfixes.
+
+### 1.6.0 [See discussion](https://github.com/timrwood/moment/pull/268)
+
+- Release Apr 26, 2012
+
+Added Durations.
+
+Revamped parser to support parsing non-separated strings (YYYYMMDD vs YYYY-MM-DD).
+
+Added support for millisecond parsing and formatting tokens (S SS SSS)
+
+Added a getter for `moment.lang()`
+
+Various bugfixes.
+
+There are a few things deprecated in the 1.6.0 release.
+
+1. The format tokens `z` and `zz` (timezone abbreviations like EST CST MST etc) will no longer be supported. Due to inconsistent browser support, we are unable to consistently produce this value. See [this issue](https://github.com/timrwood/moment/issues/162) for more background.
+
+2. The method `moment.fn.native` is deprecated in favor of `moment.fn.toDate`. There continue to be issues with Google Closure Compiler throwing errors when using `native`, even in valid instances.
+
+3. The way to customize am/pm strings is being changed. This would only affect you if you created a custom language file. For more information, see [this issue](https://github.com/timrwood/moment/pull/222).
+
+### 1.5.0 [See milestone](https://github.com/timrwood/moment/issues?milestone=10&page=1&state=closed)
+
+- Release Mar 20, 2012
+
+Added UTC mode.
+
+Added automatic ISO8601 parsing.
+
+Various bugfixes.
+
+### 1.4.0 [See milestone](https://github.com/timrwood/moment/issues?milestone=8&state=closed)
+
+- Release Feb 4, 2012
+
+Added `moment.fn.toDate` as a replacement for `moment.fn.native`.
+
+Added `moment.fn.sod` and `moment.fn.eod` to get the start and end of day.
+
+Various bugfixes.
+
+### 1.3.0 [See milestone](https://github.com/timrwood/moment/issues?milestone=7&state=closed)
+
+- Release Jan 5, 2012
+
+Added support for parsing month names in the current language.
+
+Added escape blocks for parsing tokens.
+
+Added `moment.fn.calendar` to format strings like 'Today 2:30 PM', 'Tomorrow 1:25 AM', and 'Last Sunday 4:30 AM'.
+
+Added `moment.fn.day` as a setter.
+
+Various bugfixes
+
+### 1.2.0 [See milestone](https://github.com/timrwood/moment/issues?milestone=4&state=closed)
+
+- Release Dec 7, 2011
+
+Added timezones to parser and formatter.
+
+Added `moment.fn.isDST`.
+
+Added `moment.fn.zone` to get the timezone offset in minutes.
+
+### 1.1.2 [See milestone](https://github.com/timrwood/moment/issues?milestone=6&state=closed)
+
+- Release Nov 18, 2011
+
+Various bugfixes
+
+### 1.1.1 [See milestone](https://github.com/timrwood/moment/issues?milestone=5&state=closed)
+
+- Release Nov 12, 2011
+
+Added time specific diffs (months, days, hours, etc)
+
+### 1.1.0
+
+- Release Oct 28, 2011
+
+Added `moment.fn.format` localized masks. 'L LL LLL LLLL' [issue 29](https://github.com/timrwood/moment/pull/29)
+
+Fixed [issue 31](https://github.com/timrwood/moment/pull/31).
+
+### 1.0.1
+
+- Release Oct 18, 2011
+
+Added `moment.version` to get the current version.
+
+Removed `window !== undefined` when checking if module exists to support browserify. [issue 25](https://github.com/timrwood/moment/pull/25)
+
+### 1.0.0
+
+- Release
+
+Added convenience methods for getting and setting date parts.
+
+Added better support for `moment.add()`.
+
+Added better lang support in NodeJS.
+
+Renamed library from underscore.date to Moment.js
+
+### 0.6.1
+
+- Release Oct 12, 2011
+
+Added Portuguese, Italian, and French language support
+
+### 0.6.0
+
+- Release Sep 21, 2011
+
+Added _date.lang() support.
+Added support for passing multiple formats to try to parse a date. _date("07-10-1986", ["MM-DD-YYYY", "YYYY-MM-DD"]);
+Made parse from string and single format 25% faster.
+
+### 0.5.2
+
+- Release Jul 11, 2011
+
+Bugfix for [issue 8](https://github.com/timrwood/underscore.date/pull/8) and [issue 9](https://github.com/timrwood/underscore.date/pull/9).
+
+### 0.5.1
+
+- Release Jun 17, 2011
+
+Bugfix for [issue 5](https://github.com/timrwood/underscore.date/pull/5).
+
+### 0.5.0
+
+- Release Jun 13, 2011
+
+Dropped the redundant `_date.date()` in favor of `_date()`.
+Removed `_date.now()`, as it is a duplicate of `_date()` with no parameters.
+Removed `_date.isLeapYear(yearNumber)`. Use `_date([yearNumber]).isLeapYear()` instead.
+Exposed customization options through the `_date.relativeTime`, `_date.weekdays`, `_date.weekdaysShort`, `_date.months`, `_date.monthsShort`, and `_date.ordinal` variables instead of the `_date.customize()` function.
+
+### 0.4.1
+
+- Release May 9, 2011
+
+Added date input formats for input strings.
+
+### 0.4.0
+
+- Release May 9, 2011
+
+Added underscore.date to npm. Removed dependencies on underscore.
+
+### 0.3.2
+
+- Release Apr 9, 2011
+
+Added `'z'` and `'zz'` to `_.date().format()`. Cleaned up some redundant code to trim off some bytes.
+
+### 0.3.1
+
+- Release Mar 25, 2011
+
+Cleaned up the namespace. Moved all date manipulation and display functions to the _.date() object.
+
+### 0.3.0
+
+- Release Mar 25, 2011
+
+Switched to the Underscore methodology of not mucking with the native objects' prototypes.
+Made chaining possible.
+
+### 0.2.1
+
+- Release
+
+Changed date names to be a more pseudo standardized 'dddd, MMMM Do YYYY, h:mm:ss a'.
+Added `Date.prototype` functions `add`, `subtract`, `isdst`, and `isleapyear`.
+
+### 0.2.0
+
+- Release
+
+Changed function names to be more concise.
+Changed date format from php date format to custom format.
+
+### 0.1.0
+
+- Release
+
+Initial release
+
diff --git a/backend/node_modules/moment/LICENSE b/backend/node_modules/moment/LICENSE
new file mode 100644
index 0000000..8618b73
--- /dev/null
+++ b/backend/node_modules/moment/LICENSE
@@ -0,0 +1,22 @@
+Copyright (c) JS Foundation and other contributors
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/moment/README.md b/backend/node_modules/moment/README.md
new file mode 100644
index 0000000..38e61bb
--- /dev/null
+++ b/backend/node_modules/moment/README.md
@@ -0,0 +1,55 @@
+# [Moment.js](http://momentjs.com/)
+
+[![NPM version][npm-version-image]][npm-url]
+[![NPM downloads][npm-downloads-image]][npm-downloads-url]
+[![MIT License][license-image]][license-url]
+[![Build Status][travis-image]][travis-url]
+[![Coverage Status][coveralls-image]][coveralls-url]
+[![FOSSA Status][fossa-badge-image]][fossa-badge-url]
+[![SemVer compatibility][semver-image]][semver-url]
+
+A JavaScript date library for parsing, validating, manipulating, and formatting dates.
+
+## Project Status
+
+Moment.js is a legacy project, now in maintenance mode.  In most cases, you should choose a different library.
+
+For more details and recommendations, please see [Project Status](https://momentjs.com/docs/#/-project-status/) in the docs.
+
+*Thank you.*
+
+## Resources
+
+- [Documentation](https://momentjs.com/docs/)
+- [Changelog](CHANGELOG.md)
+- [Stack Overflow](https://stackoverflow.com/questions/tagged/momentjs)
+
+## License
+
+Moment.js is freely distributable under the terms of the [MIT license][license-url].
+
+[![FOSSA Status][fossa-large-image]][fossa-large-url]
+
+[license-image]: https://img.shields.io/badge/license-MIT-blue.svg?style=flat
+[license-url]: LICENSE
+
+[npm-url]: https://npmjs.org/package/moment
+[npm-version-image]: https://img.shields.io/npm/v/moment.svg?style=flat
+
+[npm-downloads-image]: https://img.shields.io/npm/dm/moment.svg?style=flat
+[npm-downloads-url]: https://npmcharts.com/compare/moment?minimal=true
+
+[travis-url]: https://travis-ci.org/moment/moment
+[travis-image]: https://img.shields.io/travis/moment/moment/develop.svg?style=flat
+
+[coveralls-image]: https://coveralls.io/repos/moment/moment/badge.svg?branch=develop
+[coveralls-url]: https://coveralls.io/r/moment/moment?branch=develop
+
+[fossa-badge-image]: https://app.fossa.io/api/projects/git%2Bhttps%3A%2F%2Fgithub.com%2Fmoment%2Fmoment.svg?type=shield
+[fossa-badge-url]: https://app.fossa.io/projects/git%2Bhttps%3A%2F%2Fgithub.com%2Fmoment%2Fmoment?ref=badge_shield
+
+[fossa-large-image]: https://app.fossa.io/api/projects/git%2Bhttps%3A%2F%2Fgithub.com%2Fmoment%2Fmoment.svg?type=large
+[fossa-large-url]: https://app.fossa.io/projects/git%2Bhttps%3A%2F%2Fgithub.com%2Fmoment%2Fmoment?ref=badge_large
+
+[semver-image]: https://api.dependabot.com/badges/compatibility_score?dependency-name=moment&package-manager=npm_and_yarn&version-scheme=semver
+[semver-url]: https://dependabot.com/compatibility-score.html?dependency-name=moment&package-manager=npm_and_yarn&version-scheme=semver
diff --git a/backend/node_modules/moment/dist/locale/af.js b/backend/node_modules/moment/dist/locale/af.js
new file mode 100644
index 0000000..374d853
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/af.js
@@ -0,0 +1,71 @@
+//! moment.js locale configuration
+//! locale : Afrikaans [af]
+//! author : Werner Mollentze : https://github.com/wernerm
+
+import moment from '../moment';
+
+export default moment.defineLocale('af', {
+    months: 'Januarie_Februarie_Maart_April_Mei_Junie_Julie_Augustus_September_Oktober_November_Desember'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mrt_Apr_Mei_Jun_Jul_Aug_Sep_Okt_Nov_Des'.split('_'),
+    weekdays: 'Sondag_Maandag_Dinsdag_Woensdag_Donderdag_Vrydag_Saterdag'.split(
+        '_'
+    ),
+    weekdaysShort: 'Son_Maa_Din_Woe_Don_Vry_Sat'.split('_'),
+    weekdaysMin: 'So_Ma_Di_Wo_Do_Vr_Sa'.split('_'),
+    meridiemParse: /vm|nm/i,
+    isPM: function (input) {
+        return /^nm$/i.test(input);
+    },
+    meridiem: function (hours, minutes, isLower) {
+        if (hours < 12) {
+            return isLower ? 'vm' : 'VM';
+        } else {
+            return isLower ? 'nm' : 'NM';
+        }
+    },
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Vandag om] LT',
+        nextDay: '[Môre om] LT',
+        nextWeek: 'dddd [om] LT',
+        lastDay: '[Gister om] LT',
+        lastWeek: '[Laas] dddd [om] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'oor %s',
+        past: '%s gelede',
+        s: "'n paar sekondes",
+        ss: '%d sekondes',
+        m: "'n minuut",
+        mm: '%d minute',
+        h: "'n uur",
+        hh: '%d ure',
+        d: "'n dag",
+        dd: '%d dae',
+        M: "'n maand",
+        MM: '%d maande',
+        y: "'n jaar",
+        yy: '%d jaar',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
+    ordinal: function (number) {
+        return (
+            number +
+            (number === 1 || number === 8 || number >= 20 ? 'ste' : 'de')
+        ); // Thanks to Joris Röling : https://github.com/jjupiter
+    },
+    week: {
+        dow: 1, // Maandag is die eerste dag van die week.
+        doy: 4, // Die week wat die 4de Januarie bevat is die eerste week van die jaar.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ar-dz.js b/backend/node_modules/moment/dist/locale/ar-dz.js
new file mode 100644
index 0000000..61a41e7
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ar-dz.js
@@ -0,0 +1,156 @@
+//! moment.js locale configuration
+//! locale : Arabic (Algeria) [ar-dz]
+//! author : Amine Roukh: https://github.com/Amine27
+//! author : Abdel Said: https://github.com/abdelsaid
+//! author : Ahmed Elkhatib
+//! author : forabi https://github.com/forabi
+//! author : Noureddine LOUAHEDJ : https://github.com/noureddinem
+
+import moment from '../moment';
+
+var pluralForm = function (n) {
+        return n === 0
+            ? 0
+            : n === 1
+              ? 1
+              : n === 2
+                ? 2
+                : n % 100 >= 3 && n % 100 <= 10
+                  ? 3
+                  : n % 100 >= 11
+                    ? 4
+                    : 5;
+    },
+    plurals = {
+        s: [
+            'أقل من ثانية',
+            'ثانية واحدة',
+            ['ثانيتان', 'ثانيتين'],
+            '%d ثوان',
+            '%d ثانية',
+            '%d ثانية',
+        ],
+        m: [
+            'أقل من دقيقة',
+            'دقيقة واحدة',
+            ['دقيقتان', 'دقيقتين'],
+            '%d دقائق',
+            '%d دقيقة',
+            '%d دقيقة',
+        ],
+        h: [
+            'أقل من ساعة',
+            'ساعة واحدة',
+            ['ساعتان', 'ساعتين'],
+            '%d ساعات',
+            '%d ساعة',
+            '%d ساعة',
+        ],
+        d: [
+            'أقل من يوم',
+            'يوم واحد',
+            ['يومان', 'يومين'],
+            '%d أيام',
+            '%d يومًا',
+            '%d يوم',
+        ],
+        M: [
+            'أقل من شهر',
+            'شهر واحد',
+            ['شهران', 'شهرين'],
+            '%d أشهر',
+            '%d شهرا',
+            '%d شهر',
+        ],
+        y: [
+            'أقل من عام',
+            'عام واحد',
+            ['عامان', 'عامين'],
+            '%d أعوام',
+            '%d عامًا',
+            '%d عام',
+        ],
+    },
+    pluralize = function (u) {
+        return function (number, withoutSuffix, string, isFuture) {
+            var f = pluralForm(number),
+                str = plurals[u][pluralForm(number)];
+            if (f === 2) {
+                str = str[withoutSuffix ? 0 : 1];
+            }
+            return str.replace(/%d/i, number);
+        };
+    },
+    months = [
+        'جانفي',
+        'فيفري',
+        'مارس',
+        'أفريل',
+        'ماي',
+        'جوان',
+        'جويلية',
+        'أوت',
+        'سبتمبر',
+        'أكتوبر',
+        'نوفمبر',
+        'ديسمبر',
+    ];
+
+export default moment.defineLocale('ar-dz', {
+    months: months,
+    monthsShort: months,
+    weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+    weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+    weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'D/\u200FM/\u200FYYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    meridiemParse: /ص|م/,
+    isPM: function (input) {
+        return 'م' === input;
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'ص';
+        } else {
+            return 'م';
+        }
+    },
+    calendar: {
+        sameDay: '[اليوم عند الساعة] LT',
+        nextDay: '[غدًا عند الساعة] LT',
+        nextWeek: 'dddd [عند الساعة] LT',
+        lastDay: '[أمس عند الساعة] LT',
+        lastWeek: 'dddd [عند الساعة] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'بعد %s',
+        past: 'منذ %s',
+        s: pluralize('s'),
+        ss: pluralize('s'),
+        m: pluralize('m'),
+        mm: pluralize('m'),
+        h: pluralize('h'),
+        hh: pluralize('h'),
+        d: pluralize('d'),
+        dd: pluralize('d'),
+        M: pluralize('M'),
+        MM: pluralize('M'),
+        y: pluralize('y'),
+        yy: pluralize('y'),
+    },
+    postformat: function (string) {
+        return string.replace(/,/g, '،');
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ar-kw.js b/backend/node_modules/moment/dist/locale/ar-kw.js
new file mode 100644
index 0000000..c2b0f87
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ar-kw.js
@@ -0,0 +1,55 @@
+//! moment.js locale configuration
+//! locale : Arabic (Kuwait) [ar-kw]
+//! author : Nusret Parlak: https://github.com/nusretparlak
+
+import moment from '../moment';
+
+export default moment.defineLocale('ar-kw', {
+    months: 'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split(
+        '_'
+    ),
+    monthsShort:
+        'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split(
+            '_'
+        ),
+    weekdays: 'الأحد_الإتنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+    weekdaysShort: 'احد_اتنين_ثلاثاء_اربعاء_خميس_جمعة_سبت'.split('_'),
+    weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[اليوم على الساعة] LT',
+        nextDay: '[غدا على الساعة] LT',
+        nextWeek: 'dddd [على الساعة] LT',
+        lastDay: '[أمس على الساعة] LT',
+        lastWeek: 'dddd [على الساعة] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'في %s',
+        past: 'منذ %s',
+        s: 'ثوان',
+        ss: '%d ثانية',
+        m: 'دقيقة',
+        mm: '%d دقائق',
+        h: 'ساعة',
+        hh: '%d ساعات',
+        d: 'يوم',
+        dd: '%d أيام',
+        M: 'شهر',
+        MM: '%d أشهر',
+        y: 'سنة',
+        yy: '%d سنوات',
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 12, // The week that contains Jan 12th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ar-ly.js b/backend/node_modules/moment/dist/locale/ar-ly.js
new file mode 100644
index 0000000..88d5ef5
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ar-ly.js
@@ -0,0 +1,171 @@
+//! moment.js locale configuration
+//! locale : Arabic (Libya) [ar-ly]
+//! author : Ali Hmer: https://github.com/kikoanis
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '1',
+        2: '2',
+        3: '3',
+        4: '4',
+        5: '5',
+        6: '6',
+        7: '7',
+        8: '8',
+        9: '9',
+        0: '0',
+    },
+    pluralForm = function (n) {
+        return n === 0
+            ? 0
+            : n === 1
+              ? 1
+              : n === 2
+                ? 2
+                : n % 100 >= 3 && n % 100 <= 10
+                  ? 3
+                  : n % 100 >= 11
+                    ? 4
+                    : 5;
+    },
+    plurals = {
+        s: [
+            'أقل من ثانية',
+            'ثانية واحدة',
+            ['ثانيتان', 'ثانيتين'],
+            '%d ثوان',
+            '%d ثانية',
+            '%d ثانية',
+        ],
+        m: [
+            'أقل من دقيقة',
+            'دقيقة واحدة',
+            ['دقيقتان', 'دقيقتين'],
+            '%d دقائق',
+            '%d دقيقة',
+            '%d دقيقة',
+        ],
+        h: [
+            'أقل من ساعة',
+            'ساعة واحدة',
+            ['ساعتان', 'ساعتين'],
+            '%d ساعات',
+            '%d ساعة',
+            '%d ساعة',
+        ],
+        d: [
+            'أقل من يوم',
+            'يوم واحد',
+            ['يومان', 'يومين'],
+            '%d أيام',
+            '%d يومًا',
+            '%d يوم',
+        ],
+        M: [
+            'أقل من شهر',
+            'شهر واحد',
+            ['شهران', 'شهرين'],
+            '%d أشهر',
+            '%d شهرا',
+            '%d شهر',
+        ],
+        y: [
+            'أقل من عام',
+            'عام واحد',
+            ['عامان', 'عامين'],
+            '%d أعوام',
+            '%d عامًا',
+            '%d عام',
+        ],
+    },
+    pluralize = function (u) {
+        return function (number, withoutSuffix, string, isFuture) {
+            var f = pluralForm(number),
+                str = plurals[u][pluralForm(number)];
+            if (f === 2) {
+                str = str[withoutSuffix ? 0 : 1];
+            }
+            return str.replace(/%d/i, number);
+        };
+    },
+    months = [
+        'يناير',
+        'فبراير',
+        'مارس',
+        'أبريل',
+        'مايو',
+        'يونيو',
+        'يوليو',
+        'أغسطس',
+        'سبتمبر',
+        'أكتوبر',
+        'نوفمبر',
+        'ديسمبر',
+    ];
+
+export default moment.defineLocale('ar-ly', {
+    months: months,
+    monthsShort: months,
+    weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+    weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+    weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'D/\u200FM/\u200FYYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    meridiemParse: /ص|م/,
+    isPM: function (input) {
+        return 'م' === input;
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'ص';
+        } else {
+            return 'م';
+        }
+    },
+    calendar: {
+        sameDay: '[اليوم عند الساعة] LT',
+        nextDay: '[غدًا عند الساعة] LT',
+        nextWeek: 'dddd [عند الساعة] LT',
+        lastDay: '[أمس عند الساعة] LT',
+        lastWeek: 'dddd [عند الساعة] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'بعد %s',
+        past: 'منذ %s',
+        s: pluralize('s'),
+        ss: pluralize('s'),
+        m: pluralize('m'),
+        mm: pluralize('m'),
+        h: pluralize('h'),
+        hh: pluralize('h'),
+        d: pluralize('d'),
+        dd: pluralize('d'),
+        M: pluralize('M'),
+        MM: pluralize('M'),
+        y: pluralize('y'),
+        yy: pluralize('y'),
+    },
+    preparse: function (string) {
+        return string.replace(/،/g, ',');
+    },
+    postformat: function (string) {
+        return string
+            .replace(/\d/g, function (match) {
+                return symbolMap[match];
+            })
+            .replace(/,/g, '،');
+    },
+    week: {
+        dow: 6, // Saturday is the first day of the week.
+        doy: 12, // The week that contains Jan 12th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ar-ma.js b/backend/node_modules/moment/dist/locale/ar-ma.js
new file mode 100644
index 0000000..4010aa0
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ar-ma.js
@@ -0,0 +1,56 @@
+//! moment.js locale configuration
+//! locale : Arabic (Morocco) [ar-ma]
+//! author : ElFadili Yassine : https://github.com/ElFadiliY
+//! author : Abdel Said : https://github.com/abdelsaid
+
+import moment from '../moment';
+
+export default moment.defineLocale('ar-ma', {
+    months: 'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split(
+        '_'
+    ),
+    monthsShort:
+        'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split(
+            '_'
+        ),
+    weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+    weekdaysShort: 'احد_اثنين_ثلاثاء_اربعاء_خميس_جمعة_سبت'.split('_'),
+    weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[اليوم على الساعة] LT',
+        nextDay: '[غدا على الساعة] LT',
+        nextWeek: 'dddd [على الساعة] LT',
+        lastDay: '[أمس على الساعة] LT',
+        lastWeek: 'dddd [على الساعة] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'في %s',
+        past: 'منذ %s',
+        s: 'ثوان',
+        ss: '%d ثانية',
+        m: 'دقيقة',
+        mm: '%d دقائق',
+        h: 'ساعة',
+        hh: '%d ساعات',
+        d: 'يوم',
+        dd: '%d أيام',
+        M: 'شهر',
+        MM: '%d أشهر',
+        y: 'سنة',
+        yy: '%d سنوات',
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ar-ps.js b/backend/node_modules/moment/dist/locale/ar-ps.js
new file mode 100644
index 0000000..143da7d
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ar-ps.js
@@ -0,0 +1,112 @@
+//! moment.js locale configuration
+//! locale : Arabic (Palestine) [ar-ps]
+//! author : Majd Al-Shihabi : https://github.com/majdal
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '١',
+        2: '٢',
+        3: '٣',
+        4: '٤',
+        5: '٥',
+        6: '٦',
+        7: '٧',
+        8: '٨',
+        9: '٩',
+        0: '٠',
+    },
+    numberMap = {
+        '١': '1',
+        '٢': '2',
+        '٣': '3',
+        '٤': '4',
+        '٥': '5',
+        '٦': '6',
+        '٧': '7',
+        '٨': '8',
+        '٩': '9',
+        '٠': '0',
+    };
+
+export default moment.defineLocale('ar-ps', {
+    months: 'كانون الثاني_شباط_آذار_نيسان_أيّار_حزيران_تمّوز_آب_أيلول_تشري الأوّل_تشرين الثاني_كانون الأوّل'.split(
+        '_'
+    ),
+    monthsShort:
+        'ك٢_شباط_آذار_نيسان_أيّار_حزيران_تمّوز_آب_أيلول_ت١_ت٢_ك١'.split('_'),
+    weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+    weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+    weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    meridiemParse: /ص|م/,
+    isPM: function (input) {
+        return 'م' === input;
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'ص';
+        } else {
+            return 'م';
+        }
+    },
+    calendar: {
+        sameDay: '[اليوم على الساعة] LT',
+        nextDay: '[غدا على الساعة] LT',
+        nextWeek: 'dddd [على الساعة] LT',
+        lastDay: '[أمس على الساعة] LT',
+        lastWeek: 'dddd [على الساعة] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'في %s',
+        past: 'منذ %s',
+        s: 'ثوان',
+        ss: '%d ثانية',
+        m: 'دقيقة',
+        mm: '%d دقائق',
+        h: 'ساعة',
+        hh: '%d ساعات',
+        d: 'يوم',
+        dd: '%d أيام',
+        M: 'شهر',
+        MM: '%d أشهر',
+        y: 'سنة',
+        yy: '%d سنوات',
+    },
+    preparse: function (string) {
+        return string
+            .replace(/[٣٤٥٦٧٨٩٠]/g, function (match) {
+                return numberMap[match];
+            })
+            .split('') // reversed since negative lookbehind not supported everywhere
+            .reverse()
+            .join('')
+            .replace(/[١٢](?![\u062a\u0643])/g, function (match) {
+                return numberMap[match];
+            })
+            .split('')
+            .reverse()
+            .join('')
+            .replace(/،/g, ',');
+    },
+    postformat: function (string) {
+        return string
+            .replace(/\d/g, function (match) {
+                return symbolMap[match];
+            })
+            .replace(/,/g, '،');
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ar-sa.js b/backend/node_modules/moment/dist/locale/ar-sa.js
new file mode 100644
index 0000000..4505ea1
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ar-sa.js
@@ -0,0 +1,105 @@
+//! moment.js locale configuration
+//! locale : Arabic (Saudi Arabia) [ar-sa]
+//! author : Suhail Alkowaileet : https://github.com/xsoh
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '١',
+        2: '٢',
+        3: '٣',
+        4: '٤',
+        5: '٥',
+        6: '٦',
+        7: '٧',
+        8: '٨',
+        9: '٩',
+        0: '٠',
+    },
+    numberMap = {
+        '١': '1',
+        '٢': '2',
+        '٣': '3',
+        '٤': '4',
+        '٥': '5',
+        '٦': '6',
+        '٧': '7',
+        '٨': '8',
+        '٩': '9',
+        '٠': '0',
+    };
+
+export default moment.defineLocale('ar-sa', {
+    months: 'يناير_فبراير_مارس_أبريل_مايو_يونيو_يوليو_أغسطس_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split(
+        '_'
+    ),
+    monthsShort:
+        'يناير_فبراير_مارس_أبريل_مايو_يونيو_يوليو_أغسطس_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split(
+            '_'
+        ),
+    weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+    weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+    weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    meridiemParse: /ص|م/,
+    isPM: function (input) {
+        return 'م' === input;
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'ص';
+        } else {
+            return 'م';
+        }
+    },
+    calendar: {
+        sameDay: '[اليوم على الساعة] LT',
+        nextDay: '[غدا على الساعة] LT',
+        nextWeek: 'dddd [على الساعة] LT',
+        lastDay: '[أمس على الساعة] LT',
+        lastWeek: 'dddd [على الساعة] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'في %s',
+        past: 'منذ %s',
+        s: 'ثوان',
+        ss: '%d ثانية',
+        m: 'دقيقة',
+        mm: '%d دقائق',
+        h: 'ساعة',
+        hh: '%d ساعات',
+        d: 'يوم',
+        dd: '%d أيام',
+        M: 'شهر',
+        MM: '%d أشهر',
+        y: 'سنة',
+        yy: '%d سنوات',
+    },
+    preparse: function (string) {
+        return string
+            .replace(/[١٢٣٤٥٦٧٨٩٠]/g, function (match) {
+                return numberMap[match];
+            })
+            .replace(/،/g, ',');
+    },
+    postformat: function (string) {
+        return string
+            .replace(/\d/g, function (match) {
+                return symbolMap[match];
+            })
+            .replace(/,/g, '،');
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ar-tn.js b/backend/node_modules/moment/dist/locale/ar-tn.js
new file mode 100644
index 0000000..0f416ae
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ar-tn.js
@@ -0,0 +1,55 @@
+//! moment.js locale configuration
+//! locale  :  Arabic (Tunisia) [ar-tn]
+//! author : Nader Toukabri : https://github.com/naderio
+
+import moment from '../moment';
+
+export default moment.defineLocale('ar-tn', {
+    months: 'جانفي_فيفري_مارس_أفريل_ماي_جوان_جويلية_أوت_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split(
+        '_'
+    ),
+    monthsShort:
+        'جانفي_فيفري_مارس_أفريل_ماي_جوان_جويلية_أوت_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split(
+            '_'
+        ),
+    weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+    weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+    weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[اليوم على الساعة] LT',
+        nextDay: '[غدا على الساعة] LT',
+        nextWeek: 'dddd [على الساعة] LT',
+        lastDay: '[أمس على الساعة] LT',
+        lastWeek: 'dddd [على الساعة] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'في %s',
+        past: 'منذ %s',
+        s: 'ثوان',
+        ss: '%d ثانية',
+        m: 'دقيقة',
+        mm: '%d دقائق',
+        h: 'ساعة',
+        hh: '%d ساعات',
+        d: 'يوم',
+        dd: '%d أيام',
+        M: 'شهر',
+        MM: '%d أشهر',
+        y: 'سنة',
+        yy: '%d سنوات',
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ar.js b/backend/node_modules/moment/dist/locale/ar.js
new file mode 100644
index 0000000..846e491
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ar.js
@@ -0,0 +1,189 @@
+//! moment.js locale configuration
+//! locale : Arabic [ar]
+//! author : Abdel Said: https://github.com/abdelsaid
+//! author : Ahmed Elkhatib
+//! author : forabi https://github.com/forabi
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '١',
+        2: '٢',
+        3: '٣',
+        4: '٤',
+        5: '٥',
+        6: '٦',
+        7: '٧',
+        8: '٨',
+        9: '٩',
+        0: '٠',
+    },
+    numberMap = {
+        '١': '1',
+        '٢': '2',
+        '٣': '3',
+        '٤': '4',
+        '٥': '5',
+        '٦': '6',
+        '٧': '7',
+        '٨': '8',
+        '٩': '9',
+        '٠': '0',
+    },
+    pluralForm = function (n) {
+        return n === 0
+            ? 0
+            : n === 1
+              ? 1
+              : n === 2
+                ? 2
+                : n % 100 >= 3 && n % 100 <= 10
+                  ? 3
+                  : n % 100 >= 11
+                    ? 4
+                    : 5;
+    },
+    plurals = {
+        s: [
+            'أقل من ثانية',
+            'ثانية واحدة',
+            ['ثانيتان', 'ثانيتين'],
+            '%d ثوان',
+            '%d ثانية',
+            '%d ثانية',
+        ],
+        m: [
+            'أقل من دقيقة',
+            'دقيقة واحدة',
+            ['دقيقتان', 'دقيقتين'],
+            '%d دقائق',
+            '%d دقيقة',
+            '%d دقيقة',
+        ],
+        h: [
+            'أقل من ساعة',
+            'ساعة واحدة',
+            ['ساعتان', 'ساعتين'],
+            '%d ساعات',
+            '%d ساعة',
+            '%d ساعة',
+        ],
+        d: [
+            'أقل من يوم',
+            'يوم واحد',
+            ['يومان', 'يومين'],
+            '%d أيام',
+            '%d يومًا',
+            '%d يوم',
+        ],
+        M: [
+            'أقل من شهر',
+            'شهر واحد',
+            ['شهران', 'شهرين'],
+            '%d أشهر',
+            '%d شهرا',
+            '%d شهر',
+        ],
+        y: [
+            'أقل من عام',
+            'عام واحد',
+            ['عامان', 'عامين'],
+            '%d أعوام',
+            '%d عامًا',
+            '%d عام',
+        ],
+    },
+    pluralize = function (u) {
+        return function (number, withoutSuffix, string, isFuture) {
+            var f = pluralForm(number),
+                str = plurals[u][pluralForm(number)];
+            if (f === 2) {
+                str = str[withoutSuffix ? 0 : 1];
+            }
+            return str.replace(/%d/i, number);
+        };
+    },
+    months = [
+        'يناير',
+        'فبراير',
+        'مارس',
+        'أبريل',
+        'مايو',
+        'يونيو',
+        'يوليو',
+        'أغسطس',
+        'سبتمبر',
+        'أكتوبر',
+        'نوفمبر',
+        'ديسمبر',
+    ];
+
+export default moment.defineLocale('ar', {
+    months: months,
+    monthsShort: months,
+    weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+    weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+    weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'D/\u200FM/\u200FYYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    meridiemParse: /ص|م/,
+    isPM: function (input) {
+        return 'م' === input;
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'ص';
+        } else {
+            return 'م';
+        }
+    },
+    calendar: {
+        sameDay: '[اليوم عند الساعة] LT',
+        nextDay: '[غدًا عند الساعة] LT',
+        nextWeek: 'dddd [عند الساعة] LT',
+        lastDay: '[أمس عند الساعة] LT',
+        lastWeek: 'dddd [عند الساعة] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'بعد %s',
+        past: 'منذ %s',
+        s: pluralize('s'),
+        ss: pluralize('s'),
+        m: pluralize('m'),
+        mm: pluralize('m'),
+        h: pluralize('h'),
+        hh: pluralize('h'),
+        d: pluralize('d'),
+        dd: pluralize('d'),
+        M: pluralize('M'),
+        MM: pluralize('M'),
+        y: pluralize('y'),
+        yy: pluralize('y'),
+    },
+    preparse: function (string) {
+        return string
+            .replace(/[١٢٣٤٥٦٧٨٩٠]/g, function (match) {
+                return numberMap[match];
+            })
+            .replace(/،/g, ',');
+    },
+    postformat: function (string) {
+        return string
+            .replace(/\d/g, function (match) {
+                return symbolMap[match];
+            })
+            .replace(/,/g, '،');
+    },
+    week: {
+        dow: 6, // Saturday is the first day of the week.
+        doy: 12, // The week that contains Jan 12th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/az.js b/backend/node_modules/moment/dist/locale/az.js
new file mode 100644
index 0000000..2e06aa1
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/az.js
@@ -0,0 +1,102 @@
+//! moment.js locale configuration
+//! locale : Azerbaijani [az]
+//! author : topchiyev : https://github.com/topchiyev
+
+import moment from '../moment';
+
+var suffixes = {
+    1: '-inci',
+    5: '-inci',
+    8: '-inci',
+    70: '-inci',
+    80: '-inci',
+    2: '-nci',
+    7: '-nci',
+    20: '-nci',
+    50: '-nci',
+    3: '-üncü',
+    4: '-üncü',
+    100: '-üncü',
+    6: '-ncı',
+    9: '-uncu',
+    10: '-uncu',
+    30: '-uncu',
+    60: '-ıncı',
+    90: '-ıncı',
+};
+
+export default moment.defineLocale('az', {
+    months: 'yanvar_fevral_mart_aprel_may_iyun_iyul_avqust_sentyabr_oktyabr_noyabr_dekabr'.split(
+        '_'
+    ),
+    monthsShort: 'yan_fev_mar_apr_may_iyn_iyl_avq_sen_okt_noy_dek'.split('_'),
+    weekdays:
+        'Bazar_Bazar ertəsi_Çərşənbə axşamı_Çərşənbə_Cümə axşamı_Cümə_Şənbə'.split(
+            '_'
+        ),
+    weekdaysShort: 'Baz_BzE_ÇAx_Çər_CAx_Cüm_Şən'.split('_'),
+    weekdaysMin: 'Bz_BE_ÇA_Çə_CA_Cü_Şə'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[bugün saat] LT',
+        nextDay: '[sabah saat] LT',
+        nextWeek: '[gələn həftə] dddd [saat] LT',
+        lastDay: '[dünən] LT',
+        lastWeek: '[keçən həftə] dddd [saat] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s sonra',
+        past: '%s əvvəl',
+        s: 'bir neçə saniyə',
+        ss: '%d saniyə',
+        m: 'bir dəqiqə',
+        mm: '%d dəqiqə',
+        h: 'bir saat',
+        hh: '%d saat',
+        d: 'bir gün',
+        dd: '%d gün',
+        M: 'bir ay',
+        MM: '%d ay',
+        y: 'bir il',
+        yy: '%d il',
+    },
+    meridiemParse: /gecə|səhər|gündüz|axşam/,
+    isPM: function (input) {
+        return /^(gündüz|axşam)$/.test(input);
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'gecə';
+        } else if (hour < 12) {
+            return 'səhər';
+        } else if (hour < 17) {
+            return 'gündüz';
+        } else {
+            return 'axşam';
+        }
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}-(ıncı|inci|nci|üncü|ncı|uncu)/,
+    ordinal: function (number) {
+        if (number === 0) {
+            // special case for zero
+            return number + '-ıncı';
+        }
+        var a = number % 10,
+            b = (number % 100) - a,
+            c = number >= 100 ? 100 : null;
+        return number + (suffixes[a] || suffixes[b] || suffixes[c]);
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/be.js b/backend/node_modules/moment/dist/locale/be.js
new file mode 100644
index 0000000..39e97a2
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/be.js
@@ -0,0 +1,142 @@
+//! moment.js locale configuration
+//! locale : Belarusian [be]
+//! author : Dmitry Demidov : https://github.com/demidov91
+//! author: Praleska: http://praleska.pro/
+//! Author : Menelion Elensúle : https://github.com/Oire
+
+import moment from '../moment';
+
+function plural(word, num) {
+    var forms = word.split('_');
+    return num % 10 === 1 && num % 100 !== 11
+        ? forms[0]
+        : num % 10 >= 2 && num % 10 <= 4 && (num % 100 < 10 || num % 100 >= 20)
+          ? forms[1]
+          : forms[2];
+}
+function relativeTimeWithPlural(number, withoutSuffix, key) {
+    var format = {
+        ss: withoutSuffix ? 'секунда_секунды_секунд' : 'секунду_секунды_секунд',
+        mm: withoutSuffix ? 'хвіліна_хвіліны_хвілін' : 'хвіліну_хвіліны_хвілін',
+        hh: withoutSuffix ? 'гадзіна_гадзіны_гадзін' : 'гадзіну_гадзіны_гадзін',
+        dd: 'дзень_дні_дзён',
+        MM: 'месяц_месяцы_месяцаў',
+        yy: 'год_гады_гадоў',
+    };
+    if (key === 'm') {
+        return withoutSuffix ? 'хвіліна' : 'хвіліну';
+    } else if (key === 'h') {
+        return withoutSuffix ? 'гадзіна' : 'гадзіну';
+    } else {
+        return number + ' ' + plural(format[key], +number);
+    }
+}
+
+export default moment.defineLocale('be', {
+    months: {
+        format: 'студзеня_лютага_сакавіка_красавіка_траўня_чэрвеня_ліпеня_жніўня_верасня_кастрычніка_лістапада_снежня'.split(
+            '_'
+        ),
+        standalone:
+            'студзень_люты_сакавік_красавік_травень_чэрвень_ліпень_жнівень_верасень_кастрычнік_лістапад_снежань'.split(
+                '_'
+            ),
+    },
+    monthsShort:
+        'студ_лют_сак_крас_трав_чэрв_ліп_жнів_вер_каст_ліст_снеж'.split('_'),
+    weekdays: {
+        format: 'нядзелю_панядзелак_аўторак_сераду_чацвер_пятніцу_суботу'.split(
+            '_'
+        ),
+        standalone:
+            'нядзеля_панядзелак_аўторак_серада_чацвер_пятніца_субота'.split(
+                '_'
+            ),
+        isFormat: /\[ ?[Ууў] ?(?:мінулую|наступную)? ?\] ?dddd/,
+    },
+    weekdaysShort: 'нд_пн_ат_ср_чц_пт_сб'.split('_'),
+    weekdaysMin: 'нд_пн_ат_ср_чц_пт_сб'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY г.',
+        LLL: 'D MMMM YYYY г., HH:mm',
+        LLLL: 'dddd, D MMMM YYYY г., HH:mm',
+    },
+    calendar: {
+        sameDay: '[Сёння ў] LT',
+        nextDay: '[Заўтра ў] LT',
+        lastDay: '[Учора ў] LT',
+        nextWeek: function () {
+            return '[У] dddd [ў] LT';
+        },
+        lastWeek: function () {
+            switch (this.day()) {
+                case 0:
+                case 3:
+                case 5:
+                case 6:
+                    return '[У мінулую] dddd [ў] LT';
+                case 1:
+                case 2:
+                case 4:
+                    return '[У мінулы] dddd [ў] LT';
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'праз %s',
+        past: '%s таму',
+        s: 'некалькі секунд',
+        m: relativeTimeWithPlural,
+        mm: relativeTimeWithPlural,
+        h: relativeTimeWithPlural,
+        hh: relativeTimeWithPlural,
+        d: 'дзень',
+        dd: relativeTimeWithPlural,
+        M: 'месяц',
+        MM: relativeTimeWithPlural,
+        y: 'год',
+        yy: relativeTimeWithPlural,
+    },
+    meridiemParse: /ночы|раніцы|дня|вечара/,
+    isPM: function (input) {
+        return /^(дня|вечара)$/.test(input);
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'ночы';
+        } else if (hour < 12) {
+            return 'раніцы';
+        } else if (hour < 17) {
+            return 'дня';
+        } else {
+            return 'вечара';
+        }
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}-(і|ы|га)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'M':
+            case 'd':
+            case 'DDD':
+            case 'w':
+            case 'W':
+                return (number % 10 === 2 || number % 10 === 3) &&
+                    number % 100 !== 12 &&
+                    number % 100 !== 13
+                    ? number + '-і'
+                    : number + '-ы';
+            case 'D':
+                return number + '-га';
+            default:
+                return number;
+        }
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/bg.js b/backend/node_modules/moment/dist/locale/bg.js
new file mode 100644
index 0000000..e8b060f
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/bg.js
@@ -0,0 +1,87 @@
+//! moment.js locale configuration
+//! locale : Bulgarian [bg]
+//! author : Krasen Borisov : https://github.com/kraz
+
+import moment from '../moment';
+
+export default moment.defineLocale('bg', {
+    months: 'януари_февруари_март_април_май_юни_юли_август_септември_октомври_ноември_декември'.split(
+        '_'
+    ),
+    monthsShort: 'яну_фев_мар_апр_май_юни_юли_авг_сеп_окт_ное_дек'.split('_'),
+    weekdays: 'неделя_понеделник_вторник_сряда_четвъртък_петък_събота'.split(
+        '_'
+    ),
+    weekdaysShort: 'нед_пон_вто_сря_чет_пет_съб'.split('_'),
+    weekdaysMin: 'нд_пн_вт_ср_чт_пт_сб'.split('_'),
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'D.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY H:mm',
+        LLLL: 'dddd, D MMMM YYYY H:mm',
+    },
+    calendar: {
+        sameDay: '[Днес в] LT',
+        nextDay: '[Утре в] LT',
+        nextWeek: 'dddd [в] LT',
+        lastDay: '[Вчера в] LT',
+        lastWeek: function () {
+            switch (this.day()) {
+                case 0:
+                case 3:
+                case 6:
+                    return '[Миналата] dddd [в] LT';
+                case 1:
+                case 2:
+                case 4:
+                case 5:
+                    return '[Миналия] dddd [в] LT';
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'след %s',
+        past: 'преди %s',
+        s: 'няколко секунди',
+        ss: '%d секунди',
+        m: 'минута',
+        mm: '%d минути',
+        h: 'час',
+        hh: '%d часа',
+        d: 'ден',
+        dd: '%d дена',
+        w: 'седмица',
+        ww: '%d седмици',
+        M: 'месец',
+        MM: '%d месеца',
+        y: 'година',
+        yy: '%d години',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}-(ев|ен|ти|ви|ри|ми)/,
+    ordinal: function (number) {
+        var lastDigit = number % 10,
+            last2Digits = number % 100;
+        if (number === 0) {
+            return number + '-ев';
+        } else if (last2Digits === 0) {
+            return number + '-ен';
+        } else if (last2Digits > 10 && last2Digits < 20) {
+            return number + '-ти';
+        } else if (lastDigit === 1) {
+            return number + '-ви';
+        } else if (lastDigit === 2) {
+            return number + '-ри';
+        } else if (lastDigit === 7 || lastDigit === 8) {
+            return number + '-ми';
+        } else {
+            return number + '-ти';
+        }
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/bm.js b/backend/node_modules/moment/dist/locale/bm.js
new file mode 100644
index 0000000..037d018
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/bm.js
@@ -0,0 +1,52 @@
+//! moment.js locale configuration
+//! locale : Bambara [bm]
+//! author : Estelle Comment : https://github.com/estellecomment
+// Language contact person : Abdoufata Kane : https://github.com/abdoufata
+
+import moment from '../moment';
+
+export default moment.defineLocale('bm', {
+    months: 'Zanwuyekalo_Fewuruyekalo_Marisikalo_Awirilikalo_Mɛkalo_Zuwɛnkalo_Zuluyekalo_Utikalo_Sɛtanburukalo_ɔkutɔburukalo_Nowanburukalo_Desanburukalo'.split(
+        '_'
+    ),
+    monthsShort: 'Zan_Few_Mar_Awi_Mɛ_Zuw_Zul_Uti_Sɛt_ɔku_Now_Des'.split('_'),
+    weekdays: 'Kari_Ntɛnɛn_Tarata_Araba_Alamisa_Juma_Sibiri'.split('_'),
+    weekdaysShort: 'Kar_Ntɛ_Tar_Ara_Ala_Jum_Sib'.split('_'),
+    weekdaysMin: 'Ka_Nt_Ta_Ar_Al_Ju_Si'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'MMMM [tile] D [san] YYYY',
+        LLL: 'MMMM [tile] D [san] YYYY [lɛrɛ] HH:mm',
+        LLLL: 'dddd MMMM [tile] D [san] YYYY [lɛrɛ] HH:mm',
+    },
+    calendar: {
+        sameDay: '[Bi lɛrɛ] LT',
+        nextDay: '[Sini lɛrɛ] LT',
+        nextWeek: 'dddd [don lɛrɛ] LT',
+        lastDay: '[Kunu lɛrɛ] LT',
+        lastWeek: 'dddd [tɛmɛnen lɛrɛ] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s kɔnɔ',
+        past: 'a bɛ %s bɔ',
+        s: 'sanga dama dama',
+        ss: 'sekondi %d',
+        m: 'miniti kelen',
+        mm: 'miniti %d',
+        h: 'lɛrɛ kelen',
+        hh: 'lɛrɛ %d',
+        d: 'tile kelen',
+        dd: 'tile %d',
+        M: 'kalo kelen',
+        MM: 'kalo %d',
+        y: 'san kelen',
+        yy: 'san %d',
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/bn-bd.js b/backend/node_modules/moment/dist/locale/bn-bd.js
new file mode 100644
index 0000000..054f44f
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/bn-bd.js
@@ -0,0 +1,129 @@
+//! moment.js locale configuration
+//! locale : Bengali (Bangladesh) [bn-bd]
+//! author : Asraf Hossain Patoary : https://github.com/ashwoolford
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '১',
+        2: '২',
+        3: '৩',
+        4: '৪',
+        5: '৫',
+        6: '৬',
+        7: '৭',
+        8: '৮',
+        9: '৯',
+        0: '০',
+    },
+    numberMap = {
+        '১': '1',
+        '২': '2',
+        '৩': '3',
+        '৪': '4',
+        '৫': '5',
+        '৬': '6',
+        '৭': '7',
+        '৮': '8',
+        '৯': '9',
+        '০': '0',
+    };
+
+export default moment.defineLocale('bn-bd', {
+    months: 'জানুয়ারি_ফেব্রুয়ারি_মার্চ_এপ্রিল_মে_জুন_জুলাই_আগস্ট_সেপ্টেম্বর_অক্টোবর_নভেম্বর_ডিসেম্বর'.split(
+        '_'
+    ),
+    monthsShort:
+        'জানু_ফেব্রু_মার্চ_এপ্রিল_মে_জুন_জুলাই_আগস্ট_সেপ্ট_অক্টো_নভে_ডিসে'.split(
+            '_'
+        ),
+    weekdays: 'রবিবার_সোমবার_মঙ্গলবার_বুধবার_বৃহস্পতিবার_শুক্রবার_শনিবার'.split(
+        '_'
+    ),
+    weekdaysShort: 'রবি_সোম_মঙ্গল_বুধ_বৃহস্পতি_শুক্র_শনি'.split('_'),
+    weekdaysMin: 'রবি_সোম_মঙ্গল_বুধ_বৃহ_শুক্র_শনি'.split('_'),
+    longDateFormat: {
+        LT: 'A h:mm সময়',
+        LTS: 'A h:mm:ss সময়',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY, A h:mm সময়',
+        LLLL: 'dddd, D MMMM YYYY, A h:mm সময়',
+    },
+    calendar: {
+        sameDay: '[আজ] LT',
+        nextDay: '[আগামীকাল] LT',
+        nextWeek: 'dddd, LT',
+        lastDay: '[গতকাল] LT',
+        lastWeek: '[গত] dddd, LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s পরে',
+        past: '%s আগে',
+        s: 'কয়েক সেকেন্ড',
+        ss: '%d সেকেন্ড',
+        m: 'এক মিনিট',
+        mm: '%d মিনিট',
+        h: 'এক ঘন্টা',
+        hh: '%d ঘন্টা',
+        d: 'এক দিন',
+        dd: '%d দিন',
+        M: 'এক মাস',
+        MM: '%d মাস',
+        y: 'এক বছর',
+        yy: '%d বছর',
+    },
+    preparse: function (string) {
+        return string.replace(/[১২৩৪৫৬৭৮৯০]/g, function (match) {
+            return numberMap[match];
+        });
+    },
+    postformat: function (string) {
+        return string.replace(/\d/g, function (match) {
+            return symbolMap[match];
+        });
+    },
+
+    meridiemParse: /রাত|ভোর|সকাল|দুপুর|বিকাল|সন্ধ্যা|রাত/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'রাত') {
+            return hour < 4 ? hour : hour + 12;
+        } else if (meridiem === 'ভোর') {
+            return hour;
+        } else if (meridiem === 'সকাল') {
+            return hour;
+        } else if (meridiem === 'দুপুর') {
+            return hour >= 3 ? hour : hour + 12;
+        } else if (meridiem === 'বিকাল') {
+            return hour + 12;
+        } else if (meridiem === 'সন্ধ্যা') {
+            return hour + 12;
+        }
+    },
+
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'রাত';
+        } else if (hour < 6) {
+            return 'ভোর';
+        } else if (hour < 12) {
+            return 'সকাল';
+        } else if (hour < 15) {
+            return 'দুপুর';
+        } else if (hour < 18) {
+            return 'বিকাল';
+        } else if (hour < 20) {
+            return 'সন্ধ্যা';
+        } else {
+            return 'রাত';
+        }
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/bn.js b/backend/node_modules/moment/dist/locale/bn.js
new file mode 100644
index 0000000..14ba050
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/bn.js
@@ -0,0 +1,119 @@
+//! moment.js locale configuration
+//! locale : Bengali [bn]
+//! author : Kaushik Gandhi : https://github.com/kaushikgandhi
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '১',
+        2: '২',
+        3: '৩',
+        4: '৪',
+        5: '৫',
+        6: '৬',
+        7: '৭',
+        8: '৮',
+        9: '৯',
+        0: '০',
+    },
+    numberMap = {
+        '১': '1',
+        '২': '2',
+        '৩': '3',
+        '৪': '4',
+        '৫': '5',
+        '৬': '6',
+        '৭': '7',
+        '৮': '8',
+        '৯': '9',
+        '০': '0',
+    };
+
+export default moment.defineLocale('bn', {
+    months: 'জানুয়ারি_ফেব্রুয়ারি_মার্চ_এপ্রিল_মে_জুন_জুলাই_আগস্ট_সেপ্টেম্বর_অক্টোবর_নভেম্বর_ডিসেম্বর'.split(
+        '_'
+    ),
+    monthsShort:
+        'জানু_ফেব্রু_মার্চ_এপ্রিল_মে_জুন_জুলাই_আগস্ট_সেপ্ট_অক্টো_নভে_ডিসে'.split(
+            '_'
+        ),
+    weekdays: 'রবিবার_সোমবার_মঙ্গলবার_বুধবার_বৃহস্পতিবার_শুক্রবার_শনিবার'.split(
+        '_'
+    ),
+    weekdaysShort: 'রবি_সোম_মঙ্গল_বুধ_বৃহস্পতি_শুক্র_শনি'.split('_'),
+    weekdaysMin: 'রবি_সোম_মঙ্গল_বুধ_বৃহ_শুক্র_শনি'.split('_'),
+    longDateFormat: {
+        LT: 'A h:mm সময়',
+        LTS: 'A h:mm:ss সময়',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY, A h:mm সময়',
+        LLLL: 'dddd, D MMMM YYYY, A h:mm সময়',
+    },
+    calendar: {
+        sameDay: '[আজ] LT',
+        nextDay: '[আগামীকাল] LT',
+        nextWeek: 'dddd, LT',
+        lastDay: '[গতকাল] LT',
+        lastWeek: '[গত] dddd, LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s পরে',
+        past: '%s আগে',
+        s: 'কয়েক সেকেন্ড',
+        ss: '%d সেকেন্ড',
+        m: 'এক মিনিট',
+        mm: '%d মিনিট',
+        h: 'এক ঘন্টা',
+        hh: '%d ঘন্টা',
+        d: 'এক দিন',
+        dd: '%d দিন',
+        M: 'এক মাস',
+        MM: '%d মাস',
+        y: 'এক বছর',
+        yy: '%d বছর',
+    },
+    preparse: function (string) {
+        return string.replace(/[১২৩৪৫৬৭৮৯০]/g, function (match) {
+            return numberMap[match];
+        });
+    },
+    postformat: function (string) {
+        return string.replace(/\d/g, function (match) {
+            return symbolMap[match];
+        });
+    },
+    meridiemParse: /রাত|সকাল|দুপুর|বিকাল|রাত/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (
+            (meridiem === 'রাত' && hour >= 4) ||
+            (meridiem === 'দুপুর' && hour < 5) ||
+            meridiem === 'বিকাল'
+        ) {
+            return hour + 12;
+        } else {
+            return hour;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'রাত';
+        } else if (hour < 10) {
+            return 'সকাল';
+        } else if (hour < 17) {
+            return 'দুপুর';
+        } else if (hour < 20) {
+            return 'বিকাল';
+        } else {
+            return 'রাত';
+        }
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/bo.js b/backend/node_modules/moment/dist/locale/bo.js
new file mode 100644
index 0000000..4fbca2e
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/bo.js
@@ -0,0 +1,124 @@
+//! moment.js locale configuration
+//! locale : Tibetan [bo]
+//! author : Thupten N. Chakrishar : https://github.com/vajradog
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '༡',
+        2: '༢',
+        3: '༣',
+        4: '༤',
+        5: '༥',
+        6: '༦',
+        7: '༧',
+        8: '༨',
+        9: '༩',
+        0: '༠',
+    },
+    numberMap = {
+        '༡': '1',
+        '༢': '2',
+        '༣': '3',
+        '༤': '4',
+        '༥': '5',
+        '༦': '6',
+        '༧': '7',
+        '༨': '8',
+        '༩': '9',
+        '༠': '0',
+    };
+
+export default moment.defineLocale('bo', {
+    months: 'ཟླ་བ་དང་པོ_ཟླ་བ་གཉིས་པ_ཟླ་བ་གསུམ་པ_ཟླ་བ་བཞི་པ_ཟླ་བ་ལྔ་པ_ཟླ་བ་དྲུག་པ_ཟླ་བ་བདུན་པ_ཟླ་བ་བརྒྱད་པ_ཟླ་བ་དགུ་པ_ཟླ་བ་བཅུ་པ_ཟླ་བ་བཅུ་གཅིག་པ_ཟླ་བ་བཅུ་གཉིས་པ'.split(
+        '_'
+    ),
+    monthsShort:
+        'ཟླ་1_ཟླ་2_ཟླ་3_ཟླ་4_ཟླ་5_ཟླ་6_ཟླ་7_ཟླ་8_ཟླ་9_ཟླ་10_ཟླ་11_ཟླ་12'.split(
+            '_'
+        ),
+    monthsShortRegex: /^(ཟླ་\d{1,2})/,
+    monthsParseExact: true,
+    weekdays:
+        'གཟའ་ཉི་མ་_གཟའ་ཟླ་བ་_གཟའ་མིག་དམར་_གཟའ་ལྷག་པ་_གཟའ་ཕུར་བུ_གཟའ་པ་སངས་_གཟའ་སྤེན་པ་'.split(
+            '_'
+        ),
+    weekdaysShort: 'ཉི་མ་_ཟླ་བ་_མིག་དམར་_ལྷག་པ་_ཕུར་བུ_པ་སངས་_སྤེན་པ་'.split(
+        '_'
+    ),
+    weekdaysMin: 'ཉི_ཟླ_མིག_ལྷག_ཕུར_སངས_སྤེན'.split('_'),
+    longDateFormat: {
+        LT: 'A h:mm',
+        LTS: 'A h:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY, A h:mm',
+        LLLL: 'dddd, D MMMM YYYY, A h:mm',
+    },
+    calendar: {
+        sameDay: '[དི་རིང] LT',
+        nextDay: '[སང་ཉིན] LT',
+        nextWeek: '[བདུན་ཕྲག་རྗེས་མ], LT',
+        lastDay: '[ཁ་སང] LT',
+        lastWeek: '[བདུན་ཕྲག་མཐའ་མ] dddd, LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s ལ་',
+        past: '%s སྔན་ལ',
+        s: 'ལམ་སང',
+        ss: '%d སྐར་ཆ།',
+        m: 'སྐར་མ་གཅིག',
+        mm: '%d སྐར་མ',
+        h: 'ཆུ་ཚོད་གཅིག',
+        hh: '%d ཆུ་ཚོད',
+        d: 'ཉིན་གཅིག',
+        dd: '%d ཉིན་',
+        M: 'ཟླ་བ་གཅིག',
+        MM: '%d ཟླ་བ',
+        y: 'ལོ་གཅིག',
+        yy: '%d ལོ',
+    },
+    preparse: function (string) {
+        return string.replace(/[༡༢༣༤༥༦༧༨༩༠]/g, function (match) {
+            return numberMap[match];
+        });
+    },
+    postformat: function (string) {
+        return string.replace(/\d/g, function (match) {
+            return symbolMap[match];
+        });
+    },
+    meridiemParse: /མཚན་མོ|ཞོགས་ཀས|ཉིན་གུང|དགོང་དག|མཚན་མོ/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (
+            (meridiem === 'མཚན་མོ' && hour >= 4) ||
+            (meridiem === 'ཉིན་གུང' && hour < 5) ||
+            meridiem === 'དགོང་དག'
+        ) {
+            return hour + 12;
+        } else {
+            return hour;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'མཚན་མོ';
+        } else if (hour < 10) {
+            return 'ཞོགས་ཀས';
+        } else if (hour < 17) {
+            return 'ཉིན་གུང';
+        } else if (hour < 20) {
+            return 'དགོང་དག';
+        } else {
+            return 'མཚན་མོ';
+        }
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/br.js b/backend/node_modules/moment/dist/locale/br.js
new file mode 100644
index 0000000..a7dda49
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/br.js
@@ -0,0 +1,168 @@
+//! moment.js locale configuration
+//! locale : Breton [br]
+//! author : Jean-Baptiste Le Duigou : https://github.com/jbleduigou
+
+import moment from '../moment';
+
+function relativeTimeWithMutation(number, withoutSuffix, key) {
+    var format = {
+        mm: 'munutenn',
+        MM: 'miz',
+        dd: 'devezh',
+    };
+    return number + ' ' + mutation(format[key], number);
+}
+function specialMutationForYears(number) {
+    switch (lastNumber(number)) {
+        case 1:
+        case 3:
+        case 4:
+        case 5:
+        case 9:
+            return number + ' bloaz';
+        default:
+            return number + ' vloaz';
+    }
+}
+function lastNumber(number) {
+    if (number > 9) {
+        return lastNumber(number % 10);
+    }
+    return number;
+}
+function mutation(text, number) {
+    if (number === 2) {
+        return softMutation(text);
+    }
+    return text;
+}
+function softMutation(text) {
+    var mutationTable = {
+        m: 'v',
+        b: 'v',
+        d: 'z',
+    };
+    if (mutationTable[text.charAt(0)] === undefined) {
+        return text;
+    }
+    return mutationTable[text.charAt(0)] + text.substring(1);
+}
+
+var monthsParse = [
+        /^gen/i,
+        /^c[ʼ\']hwe/i,
+        /^meu/i,
+        /^ebr/i,
+        /^mae/i,
+        /^(mez|eve)/i,
+        /^gou/i,
+        /^eos/i,
+        /^gwe/i,
+        /^her/i,
+        /^du/i,
+        /^ker/i,
+    ],
+    monthsRegex =
+        /^(genver|c[ʼ\']hwevrer|meurzh|ebrel|mae|mezheven|gouere|eost|gwengolo|here|du|kerzu|gen|c[ʼ\']hwe|meu|ebr|mae|eve|gou|eos|gwe|her|du|ker)/i,
+    monthsStrictRegex =
+        /^(genver|c[ʼ\']hwevrer|meurzh|ebrel|mae|mezheven|gouere|eost|gwengolo|here|du|kerzu)/i,
+    monthsShortStrictRegex =
+        /^(gen|c[ʼ\']hwe|meu|ebr|mae|eve|gou|eos|gwe|her|du|ker)/i,
+    fullWeekdaysParse = [
+        /^sul/i,
+        /^lun/i,
+        /^meurzh/i,
+        /^merc[ʼ\']her/i,
+        /^yaou/i,
+        /^gwener/i,
+        /^sadorn/i,
+    ],
+    shortWeekdaysParse = [
+        /^Sul/i,
+        /^Lun/i,
+        /^Meu/i,
+        /^Mer/i,
+        /^Yao/i,
+        /^Gwe/i,
+        /^Sad/i,
+    ],
+    minWeekdaysParse = [
+        /^Su/i,
+        /^Lu/i,
+        /^Me([^r]|$)/i,
+        /^Mer/i,
+        /^Ya/i,
+        /^Gw/i,
+        /^Sa/i,
+    ];
+
+export default moment.defineLocale('br', {
+    months: 'Genver_Cʼhwevrer_Meurzh_Ebrel_Mae_Mezheven_Gouere_Eost_Gwengolo_Here_Du_Kerzu'.split(
+        '_'
+    ),
+    monthsShort: 'Gen_Cʼhwe_Meu_Ebr_Mae_Eve_Gou_Eos_Gwe_Her_Du_Ker'.split('_'),
+    weekdays: 'Sul_Lun_Meurzh_Mercʼher_Yaou_Gwener_Sadorn'.split('_'),
+    weekdaysShort: 'Sul_Lun_Meu_Mer_Yao_Gwe_Sad'.split('_'),
+    weekdaysMin: 'Su_Lu_Me_Mer_Ya_Gw_Sa'.split('_'),
+    weekdaysParse: minWeekdaysParse,
+    fullWeekdaysParse: fullWeekdaysParse,
+    shortWeekdaysParse: shortWeekdaysParse,
+    minWeekdaysParse: minWeekdaysParse,
+
+    monthsRegex: monthsRegex,
+    monthsShortRegex: monthsRegex,
+    monthsStrictRegex: monthsStrictRegex,
+    monthsShortStrictRegex: monthsShortStrictRegex,
+    monthsParse: monthsParse,
+    longMonthsParse: monthsParse,
+    shortMonthsParse: monthsParse,
+
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D [a viz] MMMM YYYY',
+        LLL: 'D [a viz] MMMM YYYY HH:mm',
+        LLLL: 'dddd, D [a viz] MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Hiziv da] LT',
+        nextDay: '[Warcʼhoazh da] LT',
+        nextWeek: 'dddd [da] LT',
+        lastDay: '[Decʼh da] LT',
+        lastWeek: 'dddd [paset da] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'a-benn %s',
+        past: '%s ʼzo',
+        s: 'un nebeud segondennoù',
+        ss: '%d eilenn',
+        m: 'ur vunutenn',
+        mm: relativeTimeWithMutation,
+        h: 'un eur',
+        hh: '%d eur',
+        d: 'un devezh',
+        dd: relativeTimeWithMutation,
+        M: 'ur miz',
+        MM: relativeTimeWithMutation,
+        y: 'ur bloaz',
+        yy: specialMutationForYears,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(añ|vet)/,
+    ordinal: function (number) {
+        var output = number === 1 ? 'añ' : 'vet';
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+    meridiemParse: /a.m.|g.m./, // goude merenn | a-raok merenn
+    isPM: function (token) {
+        return token === 'g.m.';
+    },
+    meridiem: function (hour, minute, isLower) {
+        return hour < 12 ? 'a.m.' : 'g.m.';
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/bs.js b/backend/node_modules/moment/dist/locale/bs.js
new file mode 100644
index 0000000..5235fe9
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/bs.js
@@ -0,0 +1,160 @@
+//! moment.js locale configuration
+//! locale : Bosnian [bs]
+//! author : Nedim Cholich : https://github.com/frontyard
+//! author : Rasid Redzic : https://github.com/rasidre
+//! based on (hr) translation by Bojan Marković
+
+import moment from '../moment';
+
+function processRelativeTime(number, withoutSuffix, key, isFuture) {
+    switch (key) {
+        case 'm':
+            return withoutSuffix
+                ? 'jedna minuta'
+                : isFuture
+                  ? 'jednu minutu'
+                  : 'jedne minute';
+    }
+}
+
+function translate(number, withoutSuffix, key) {
+    var result = number + ' ';
+    switch (key) {
+        case 'ss':
+            if (number === 1) {
+                result += 'sekunda';
+            } else if (number === 2 || number === 3 || number === 4) {
+                result += 'sekunde';
+            } else {
+                result += 'sekundi';
+            }
+            return result;
+        case 'mm':
+            if (number === 1) {
+                result += 'minuta';
+            } else if (number === 2 || number === 3 || number === 4) {
+                result += 'minute';
+            } else {
+                result += 'minuta';
+            }
+            return result;
+        case 'h':
+            return withoutSuffix ? 'jedan sat' : 'jedan sat';
+        case 'hh':
+            if (number === 1) {
+                result += 'sat';
+            } else if (number === 2 || number === 3 || number === 4) {
+                result += 'sata';
+            } else {
+                result += 'sati';
+            }
+            return result;
+        case 'dd':
+            if (number === 1) {
+                result += 'dan';
+            } else {
+                result += 'dana';
+            }
+            return result;
+        case 'MM':
+            if (number === 1) {
+                result += 'mjesec';
+            } else if (number === 2 || number === 3 || number === 4) {
+                result += 'mjeseca';
+            } else {
+                result += 'mjeseci';
+            }
+            return result;
+        case 'yy':
+            if (number === 1) {
+                result += 'godina';
+            } else if (number === 2 || number === 3 || number === 4) {
+                result += 'godine';
+            } else {
+                result += 'godina';
+            }
+            return result;
+    }
+}
+
+export default moment.defineLocale('bs', {
+    months: 'januar_februar_mart_april_maj_juni_juli_august_septembar_oktobar_novembar_decembar'.split(
+        '_'
+    ),
+    monthsShort:
+        'jan._feb._mar._apr._maj._jun._jul._aug._sep._okt._nov._dec.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'nedjelja_ponedjeljak_utorak_srijeda_četvrtak_petak_subota'.split(
+        '_'
+    ),
+    weekdaysShort: 'ned._pon._uto._sri._čet._pet._sub.'.split('_'),
+    weekdaysMin: 'ne_po_ut_sr_če_pe_su'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY H:mm',
+        LLLL: 'dddd, D. MMMM YYYY H:mm',
+    },
+    calendar: {
+        sameDay: '[danas u] LT',
+        nextDay: '[sutra u] LT',
+        nextWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[u] [nedjelju] [u] LT';
+                case 3:
+                    return '[u] [srijedu] [u] LT';
+                case 6:
+                    return '[u] [subotu] [u] LT';
+                case 1:
+                case 2:
+                case 4:
+                case 5:
+                    return '[u] dddd [u] LT';
+            }
+        },
+        lastDay: '[jučer u] LT',
+        lastWeek: function () {
+            switch (this.day()) {
+                case 0:
+                case 3:
+                    return '[prošlu] dddd [u] LT';
+                case 6:
+                    return '[prošle] [subote] [u] LT';
+                case 1:
+                case 2:
+                case 4:
+                case 5:
+                    return '[prošli] dddd [u] LT';
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'za %s',
+        past: 'prije %s',
+        s: 'par sekundi',
+        ss: translate,
+        m: processRelativeTime,
+        mm: translate,
+        h: translate,
+        hh: translate,
+        d: 'dan',
+        dd: translate,
+        M: 'mjesec',
+        MM: translate,
+        y: 'godinu',
+        yy: translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ca.js b/backend/node_modules/moment/dist/locale/ca.js
new file mode 100644
index 0000000..c356211
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ca.js
@@ -0,0 +1,100 @@
+//! moment.js locale configuration
+//! locale : Catalan [ca]
+//! author : Juan G. Hurtado : https://github.com/juanghurtado
+
+import moment from '../moment';
+
+export default moment.defineLocale('ca', {
+    months: {
+        standalone:
+            'gener_febrer_març_abril_maig_juny_juliol_agost_setembre_octubre_novembre_desembre'.split(
+                '_'
+            ),
+        format: "de gener_de febrer_de març_d'abril_de maig_de juny_de juliol_d'agost_de setembre_d'octubre_de novembre_de desembre".split(
+            '_'
+        ),
+        isFormat: /D[oD]?(\s)+MMMM/,
+    },
+    monthsShort:
+        'gen._febr._març_abr._maig_juny_jul._ag._set._oct._nov._des.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays:
+        'diumenge_dilluns_dimarts_dimecres_dijous_divendres_dissabte'.split(
+            '_'
+        ),
+    weekdaysShort: 'dg._dl._dt._dc._dj._dv._ds.'.split('_'),
+    weekdaysMin: 'dg_dl_dt_dc_dj_dv_ds'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM [de] YYYY',
+        ll: 'D MMM YYYY',
+        LLL: 'D MMMM [de] YYYY [a les] H:mm',
+        lll: 'D MMM YYYY, H:mm',
+        LLLL: 'dddd D MMMM [de] YYYY [a les] H:mm',
+        llll: 'ddd D MMM YYYY, H:mm',
+    },
+    calendar: {
+        sameDay: function () {
+            return '[avui a ' + (this.hours() !== 1 ? 'les' : 'la') + '] LT';
+        },
+        nextDay: function () {
+            return '[demà a ' + (this.hours() !== 1 ? 'les' : 'la') + '] LT';
+        },
+        nextWeek: function () {
+            return 'dddd [a ' + (this.hours() !== 1 ? 'les' : 'la') + '] LT';
+        },
+        lastDay: function () {
+            return '[ahir a ' + (this.hours() !== 1 ? 'les' : 'la') + '] LT';
+        },
+        lastWeek: function () {
+            return (
+                '[el] dddd [passat a ' +
+                (this.hours() !== 1 ? 'les' : 'la') +
+                '] LT'
+            );
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: "d'aquí %s",
+        past: 'fa %s',
+        s: 'uns segons',
+        ss: '%d segons',
+        m: 'un minut',
+        mm: '%d minuts',
+        h: 'una hora',
+        hh: '%d hores',
+        d: 'un dia',
+        dd: '%d dies',
+        M: 'un mes',
+        MM: '%d mesos',
+        y: 'un any',
+        yy: '%d anys',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(r|n|t|è|a)/,
+    ordinal: function (number, period) {
+        var output =
+            number === 1
+                ? 'r'
+                : number === 2
+                  ? 'n'
+                  : number === 3
+                    ? 'r'
+                    : number === 4
+                      ? 't'
+                      : 'è';
+        if (period === 'w' || period === 'W') {
+            output = 'a';
+        }
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/cs.js b/backend/node_modules/moment/dist/locale/cs.js
new file mode 100644
index 0000000..bf5dd09
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/cs.js
@@ -0,0 +1,181 @@
+//! moment.js locale configuration
+//! locale : Czech [cs]
+//! author : petrbela : https://github.com/petrbela
+
+import moment from '../moment';
+
+var months = {
+        standalone:
+            'leden_únor_březen_duben_květen_červen_červenec_srpen_září_říjen_listopad_prosinec'.split(
+                '_'
+            ),
+        format: 'ledna_února_března_dubna_května_června_července_srpna_září_října_listopadu_prosince'.split(
+            '_'
+        ),
+        isFormat: /DD?[o.]?(\[[^\[\]]*\]|\s)+MMMM/,
+    },
+    monthsShort = 'led_úno_bře_dub_kvě_čvn_čvc_srp_zář_říj_lis_pro'.split('_'),
+    monthsParse = [
+        /^led/i,
+        /^úno/i,
+        /^bře/i,
+        /^dub/i,
+        /^kvě/i,
+        /^(čvn|červen$|června)/i,
+        /^(čvc|červenec|července)/i,
+        /^srp/i,
+        /^zář/i,
+        /^říj/i,
+        /^lis/i,
+        /^pro/i,
+    ],
+    // NOTE: 'červen' is substring of 'červenec'; therefore 'červenec' must precede 'červen' in the regex to be fully matched.
+    // Otherwise parser matches '1. červenec' as '1. červen' + 'ec'.
+    monthsRegex =
+        /^(leden|únor|březen|duben|květen|červenec|července|červen|června|srpen|září|říjen|listopad|prosinec|led|úno|bře|dub|kvě|čvn|čvc|srp|zář|říj|lis|pro)/i;
+
+function plural(n) {
+    return n > 1 && n < 5 && ~~(n / 10) !== 1;
+}
+function translate(number, withoutSuffix, key, isFuture) {
+    var result = number + ' ';
+    switch (key) {
+        case 's': // a few seconds / in a few seconds / a few seconds ago
+            return withoutSuffix || isFuture ? 'pár sekund' : 'pár sekundami';
+        case 'ss': // 9 seconds / in 9 seconds / 9 seconds ago
+            if (withoutSuffix || isFuture) {
+                return result + (plural(number) ? 'sekundy' : 'sekund');
+            } else {
+                return result + 'sekundami';
+            }
+        case 'm': // a minute / in a minute / a minute ago
+            return withoutSuffix ? 'minuta' : isFuture ? 'minutu' : 'minutou';
+        case 'mm': // 9 minutes / in 9 minutes / 9 minutes ago
+            if (withoutSuffix || isFuture) {
+                return result + (plural(number) ? 'minuty' : 'minut');
+            } else {
+                return result + 'minutami';
+            }
+        case 'h': // an hour / in an hour / an hour ago
+            return withoutSuffix ? 'hodina' : isFuture ? 'hodinu' : 'hodinou';
+        case 'hh': // 9 hours / in 9 hours / 9 hours ago
+            if (withoutSuffix || isFuture) {
+                return result + (plural(number) ? 'hodiny' : 'hodin');
+            } else {
+                return result + 'hodinami';
+            }
+        case 'd': // a day / in a day / a day ago
+            return withoutSuffix || isFuture ? 'den' : 'dnem';
+        case 'dd': // 9 days / in 9 days / 9 days ago
+            if (withoutSuffix || isFuture) {
+                return result + (plural(number) ? 'dny' : 'dní');
+            } else {
+                return result + 'dny';
+            }
+        case 'M': // a month / in a month / a month ago
+            return withoutSuffix || isFuture ? 'měsíc' : 'měsícem';
+        case 'MM': // 9 months / in 9 months / 9 months ago
+            if (withoutSuffix || isFuture) {
+                return result + (plural(number) ? 'měsíce' : 'měsíců');
+            } else {
+                return result + 'měsíci';
+            }
+        case 'y': // a year / in a year / a year ago
+            return withoutSuffix || isFuture ? 'rok' : 'rokem';
+        case 'yy': // 9 years / in 9 years / 9 years ago
+            if (withoutSuffix || isFuture) {
+                return result + (plural(number) ? 'roky' : 'let');
+            } else {
+                return result + 'lety';
+            }
+    }
+}
+
+export default moment.defineLocale('cs', {
+    months: months,
+    monthsShort: monthsShort,
+    monthsRegex: monthsRegex,
+    monthsShortRegex: monthsRegex,
+    // NOTE: 'červen' is substring of 'červenec'; therefore 'červenec' must precede 'červen' in the regex to be fully matched.
+    // Otherwise parser matches '1. červenec' as '1. červen' + 'ec'.
+    monthsStrictRegex:
+        /^(leden|ledna|února|únor|březen|března|duben|dubna|květen|května|červenec|července|červen|června|srpen|srpna|září|říjen|října|listopadu|listopad|prosinec|prosince)/i,
+    monthsShortStrictRegex:
+        /^(led|úno|bře|dub|kvě|čvn|čvc|srp|zář|říj|lis|pro)/i,
+    monthsParse: monthsParse,
+    longMonthsParse: monthsParse,
+    shortMonthsParse: monthsParse,
+    weekdays: 'neděle_pondělí_úterý_středa_čtvrtek_pátek_sobota'.split('_'),
+    weekdaysShort: 'ne_po_út_st_čt_pá_so'.split('_'),
+    weekdaysMin: 'ne_po_út_st_čt_pá_so'.split('_'),
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY H:mm',
+        LLLL: 'dddd D. MMMM YYYY H:mm',
+        l: 'D. M. YYYY',
+    },
+    calendar: {
+        sameDay: '[dnes v] LT',
+        nextDay: '[zítra v] LT',
+        nextWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[v neděli v] LT';
+                case 1:
+                case 2:
+                    return '[v] dddd [v] LT';
+                case 3:
+                    return '[ve středu v] LT';
+                case 4:
+                    return '[ve čtvrtek v] LT';
+                case 5:
+                    return '[v pátek v] LT';
+                case 6:
+                    return '[v sobotu v] LT';
+            }
+        },
+        lastDay: '[včera v] LT',
+        lastWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[minulou neděli v] LT';
+                case 1:
+                case 2:
+                    return '[minulé] dddd [v] LT';
+                case 3:
+                    return '[minulou středu v] LT';
+                case 4:
+                case 5:
+                    return '[minulý] dddd [v] LT';
+                case 6:
+                    return '[minulou sobotu v] LT';
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'za %s',
+        past: 'před %s',
+        s: translate,
+        ss: translate,
+        m: translate,
+        mm: translate,
+        h: translate,
+        hh: translate,
+        d: translate,
+        dd: translate,
+        M: translate,
+        MM: translate,
+        y: translate,
+        yy: translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/cv.js b/backend/node_modules/moment/dist/locale/cv.js
new file mode 100644
index 0000000..06c196a
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/cv.js
@@ -0,0 +1,63 @@
+//! moment.js locale configuration
+//! locale : Chuvash [cv]
+//! author : Anatoly Mironov : https://github.com/mirontoli
+
+import moment from '../moment';
+
+export default moment.defineLocale('cv', {
+    months: 'кӑрлач_нарӑс_пуш_ака_май_ҫӗртме_утӑ_ҫурла_авӑн_юпа_чӳк_раштав'.split(
+        '_'
+    ),
+    monthsShort: 'кӑр_нар_пуш_ака_май_ҫӗр_утӑ_ҫур_авн_юпа_чӳк_раш'.split('_'),
+    weekdays:
+        'вырсарникун_тунтикун_ытларикун_юнкун_кӗҫнерникун_эрнекун_шӑматкун'.split(
+            '_'
+        ),
+    weekdaysShort: 'выр_тун_ытл_юн_кӗҫ_эрн_шӑм'.split('_'),
+    weekdaysMin: 'вр_тн_ыт_юн_кҫ_эр_шм'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD-MM-YYYY',
+        LL: 'YYYY [ҫулхи] MMMM [уйӑхӗн] D[-мӗшӗ]',
+        LLL: 'YYYY [ҫулхи] MMMM [уйӑхӗн] D[-мӗшӗ], HH:mm',
+        LLLL: 'dddd, YYYY [ҫулхи] MMMM [уйӑхӗн] D[-мӗшӗ], HH:mm',
+    },
+    calendar: {
+        sameDay: '[Паян] LT [сехетре]',
+        nextDay: '[Ыран] LT [сехетре]',
+        lastDay: '[Ӗнер] LT [сехетре]',
+        nextWeek: '[Ҫитес] dddd LT [сехетре]',
+        lastWeek: '[Иртнӗ] dddd LT [сехетре]',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: function (output) {
+            var affix = /сехет$/i.exec(output)
+                ? 'рен'
+                : /ҫул$/i.exec(output)
+                  ? 'тан'
+                  : 'ран';
+            return output + affix;
+        },
+        past: '%s каялла',
+        s: 'пӗр-ик ҫеккунт',
+        ss: '%d ҫеккунт',
+        m: 'пӗр минут',
+        mm: '%d минут',
+        h: 'пӗр сехет',
+        hh: '%d сехет',
+        d: 'пӗр кун',
+        dd: '%d кун',
+        M: 'пӗр уйӑх',
+        MM: '%d уйӑх',
+        y: 'пӗр ҫул',
+        yy: '%d ҫул',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}-мӗш/,
+    ordinal: '%d-мӗш',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/cy.js b/backend/node_modules/moment/dist/locale/cy.js
new file mode 100644
index 0000000..e12344a
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/cy.js
@@ -0,0 +1,98 @@
+//! moment.js locale configuration
+//! locale : Welsh [cy]
+//! author : Robert Allen : https://github.com/robgallen
+//! author : https://github.com/ryangreaves
+
+import moment from '../moment';
+
+export default moment.defineLocale('cy', {
+    months: 'Ionawr_Chwefror_Mawrth_Ebrill_Mai_Mehefin_Gorffennaf_Awst_Medi_Hydref_Tachwedd_Rhagfyr'.split(
+        '_'
+    ),
+    monthsShort: 'Ion_Chwe_Maw_Ebr_Mai_Meh_Gor_Aws_Med_Hyd_Tach_Rhag'.split(
+        '_'
+    ),
+    weekdays:
+        'Dydd Sul_Dydd Llun_Dydd Mawrth_Dydd Mercher_Dydd Iau_Dydd Gwener_Dydd Sadwrn'.split(
+            '_'
+        ),
+    weekdaysShort: 'Sul_Llun_Maw_Mer_Iau_Gwe_Sad'.split('_'),
+    weekdaysMin: 'Su_Ll_Ma_Me_Ia_Gw_Sa'.split('_'),
+    weekdaysParseExact: true,
+    // time formats are the same as en-gb
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Heddiw am] LT',
+        nextDay: '[Yfory am] LT',
+        nextWeek: 'dddd [am] LT',
+        lastDay: '[Ddoe am] LT',
+        lastWeek: 'dddd [diwethaf am] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'mewn %s',
+        past: '%s yn ôl',
+        s: 'ychydig eiliadau',
+        ss: '%d eiliad',
+        m: 'munud',
+        mm: '%d munud',
+        h: 'awr',
+        hh: '%d awr',
+        d: 'diwrnod',
+        dd: '%d diwrnod',
+        M: 'mis',
+        MM: '%d mis',
+        y: 'blwyddyn',
+        yy: '%d flynedd',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(fed|ain|af|il|ydd|ed|eg)/,
+    // traditional ordinal numbers above 31 are not commonly used in colloquial Welsh
+    ordinal: function (number) {
+        var b = number,
+            output = '',
+            lookup = [
+                '',
+                'af',
+                'il',
+                'ydd',
+                'ydd',
+                'ed',
+                'ed',
+                'ed',
+                'fed',
+                'fed',
+                'fed', // 1af to 10fed
+                'eg',
+                'fed',
+                'eg',
+                'eg',
+                'fed',
+                'eg',
+                'eg',
+                'fed',
+                'eg',
+                'fed', // 11eg to 20fed
+            ];
+        if (b > 20) {
+            if (b === 40 || b === 50 || b === 60 || b === 80 || b === 100) {
+                output = 'fed'; // not 30ain, 70ain or 90ain
+            } else {
+                output = 'ain';
+            }
+        } else if (b > 0) {
+            output = lookup[b];
+        }
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/da.js b/backend/node_modules/moment/dist/locale/da.js
new file mode 100644
index 0000000..d1fc181
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/da.js
@@ -0,0 +1,53 @@
+//! moment.js locale configuration
+//! locale : Danish [da]
+//! author : Ulrik Nielsen : https://github.com/mrbase
+
+import moment from '../moment';
+
+export default moment.defineLocale('da', {
+    months: 'januar_februar_marts_april_maj_juni_juli_august_september_oktober_november_december'.split(
+        '_'
+    ),
+    monthsShort: 'jan_feb_mar_apr_maj_jun_jul_aug_sep_okt_nov_dec'.split('_'),
+    weekdays: 'søndag_mandag_tirsdag_onsdag_torsdag_fredag_lørdag'.split('_'),
+    weekdaysShort: 'søn_man_tir_ons_tor_fre_lør'.split('_'),
+    weekdaysMin: 'sø_ma_ti_on_to_fr_lø'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY HH:mm',
+        LLLL: 'dddd [d.] D. MMMM YYYY [kl.] HH:mm',
+    },
+    calendar: {
+        sameDay: '[i dag kl.] LT',
+        nextDay: '[i morgen kl.] LT',
+        nextWeek: 'på dddd [kl.] LT',
+        lastDay: '[i går kl.] LT',
+        lastWeek: '[i] dddd[s kl.] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'om %s',
+        past: '%s siden',
+        s: 'få sekunder',
+        ss: '%d sekunder',
+        m: 'et minut',
+        mm: '%d minutter',
+        h: 'en time',
+        hh: '%d timer',
+        d: 'en dag',
+        dd: '%d dage',
+        M: 'en måned',
+        MM: '%d måneder',
+        y: 'et år',
+        yy: '%d år',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/de-at.js b/backend/node_modules/moment/dist/locale/de-at.js
new file mode 100644
index 0000000..8318fec
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/de-at.js
@@ -0,0 +1,79 @@
+//! moment.js locale configuration
+//! locale : German (Austria) [de-at]
+//! author : lluchs : https://github.com/lluchs
+//! author: Menelion Elensúle: https://github.com/Oire
+//! author : Martin Groller : https://github.com/MadMG
+//! author : Mikolaj Dadela : https://github.com/mik01aj
+
+import moment from '../moment';
+
+function processRelativeTime(number, withoutSuffix, key, isFuture) {
+    var format = {
+        m: ['eine Minute', 'einer Minute'],
+        h: ['eine Stunde', 'einer Stunde'],
+        d: ['ein Tag', 'einem Tag'],
+        dd: [number + ' Tage', number + ' Tagen'],
+        w: ['eine Woche', 'einer Woche'],
+        M: ['ein Monat', 'einem Monat'],
+        MM: [number + ' Monate', number + ' Monaten'],
+        y: ['ein Jahr', 'einem Jahr'],
+        yy: [number + ' Jahre', number + ' Jahren'],
+    };
+    return withoutSuffix ? format[key][0] : format[key][1];
+}
+
+export default moment.defineLocale('de-at', {
+    months: 'Jänner_Februar_März_April_Mai_Juni_Juli_August_September_Oktober_November_Dezember'.split(
+        '_'
+    ),
+    monthsShort:
+        'Jän._Feb._März_Apr._Mai_Juni_Juli_Aug._Sep._Okt._Nov._Dez.'.split('_'),
+    monthsParseExact: true,
+    weekdays:
+        'Sonntag_Montag_Dienstag_Mittwoch_Donnerstag_Freitag_Samstag'.split(
+            '_'
+        ),
+    weekdaysShort: 'So._Mo._Di._Mi._Do._Fr._Sa.'.split('_'),
+    weekdaysMin: 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY HH:mm',
+        LLLL: 'dddd, D. MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[heute um] LT [Uhr]',
+        sameElse: 'L',
+        nextDay: '[morgen um] LT [Uhr]',
+        nextWeek: 'dddd [um] LT [Uhr]',
+        lastDay: '[gestern um] LT [Uhr]',
+        lastWeek: '[letzten] dddd [um] LT [Uhr]',
+    },
+    relativeTime: {
+        future: 'in %s',
+        past: 'vor %s',
+        s: 'ein paar Sekunden',
+        ss: '%d Sekunden',
+        m: processRelativeTime,
+        mm: '%d Minuten',
+        h: processRelativeTime,
+        hh: '%d Stunden',
+        d: processRelativeTime,
+        dd: processRelativeTime,
+        w: processRelativeTime,
+        ww: '%d Wochen',
+        M: processRelativeTime,
+        MM: processRelativeTime,
+        y: processRelativeTime,
+        yy: processRelativeTime,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/de-ch.js b/backend/node_modules/moment/dist/locale/de-ch.js
new file mode 100644
index 0000000..4e67507
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/de-ch.js
@@ -0,0 +1,78 @@
+//! moment.js locale configuration
+//! locale : German (Switzerland) [de-ch]
+//! author : sschueller : https://github.com/sschueller
+
+// based on: https://www.bk.admin.ch/dokumentation/sprachen/04915/05016/index.html?lang=de#
+
+import moment from '../moment';
+
+function processRelativeTime(number, withoutSuffix, key, isFuture) {
+    var format = {
+        m: ['eine Minute', 'einer Minute'],
+        h: ['eine Stunde', 'einer Stunde'],
+        d: ['ein Tag', 'einem Tag'],
+        dd: [number + ' Tage', number + ' Tagen'],
+        w: ['eine Woche', 'einer Woche'],
+        M: ['ein Monat', 'einem Monat'],
+        MM: [number + ' Monate', number + ' Monaten'],
+        y: ['ein Jahr', 'einem Jahr'],
+        yy: [number + ' Jahre', number + ' Jahren'],
+    };
+    return withoutSuffix ? format[key][0] : format[key][1];
+}
+
+export default moment.defineLocale('de-ch', {
+    months: 'Januar_Februar_März_April_Mai_Juni_Juli_August_September_Oktober_November_Dezember'.split(
+        '_'
+    ),
+    monthsShort:
+        'Jan._Feb._März_Apr._Mai_Juni_Juli_Aug._Sep._Okt._Nov._Dez.'.split('_'),
+    monthsParseExact: true,
+    weekdays:
+        'Sonntag_Montag_Dienstag_Mittwoch_Donnerstag_Freitag_Samstag'.split(
+            '_'
+        ),
+    weekdaysShort: 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
+    weekdaysMin: 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY HH:mm',
+        LLLL: 'dddd, D. MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[heute um] LT [Uhr]',
+        sameElse: 'L',
+        nextDay: '[morgen um] LT [Uhr]',
+        nextWeek: 'dddd [um] LT [Uhr]',
+        lastDay: '[gestern um] LT [Uhr]',
+        lastWeek: '[letzten] dddd [um] LT [Uhr]',
+    },
+    relativeTime: {
+        future: 'in %s',
+        past: 'vor %s',
+        s: 'ein paar Sekunden',
+        ss: '%d Sekunden',
+        m: processRelativeTime,
+        mm: '%d Minuten',
+        h: processRelativeTime,
+        hh: '%d Stunden',
+        d: processRelativeTime,
+        dd: processRelativeTime,
+        w: processRelativeTime,
+        ww: '%d Wochen',
+        M: processRelativeTime,
+        MM: processRelativeTime,
+        y: processRelativeTime,
+        yy: processRelativeTime,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/de.js b/backend/node_modules/moment/dist/locale/de.js
new file mode 100644
index 0000000..cb9c8d5
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/de.js
@@ -0,0 +1,78 @@
+//! moment.js locale configuration
+//! locale : German [de]
+//! author : lluchs : https://github.com/lluchs
+//! author: Menelion Elensúle: https://github.com/Oire
+//! author : Mikolaj Dadela : https://github.com/mik01aj
+
+import moment from '../moment';
+
+function processRelativeTime(number, withoutSuffix, key, isFuture) {
+    var format = {
+        m: ['eine Minute', 'einer Minute'],
+        h: ['eine Stunde', 'einer Stunde'],
+        d: ['ein Tag', 'einem Tag'],
+        dd: [number + ' Tage', number + ' Tagen'],
+        w: ['eine Woche', 'einer Woche'],
+        M: ['ein Monat', 'einem Monat'],
+        MM: [number + ' Monate', number + ' Monaten'],
+        y: ['ein Jahr', 'einem Jahr'],
+        yy: [number + ' Jahre', number + ' Jahren'],
+    };
+    return withoutSuffix ? format[key][0] : format[key][1];
+}
+
+export default moment.defineLocale('de', {
+    months: 'Januar_Februar_März_April_Mai_Juni_Juli_August_September_Oktober_November_Dezember'.split(
+        '_'
+    ),
+    monthsShort:
+        'Jan._Feb._März_Apr._Mai_Juni_Juli_Aug._Sep._Okt._Nov._Dez.'.split('_'),
+    monthsParseExact: true,
+    weekdays:
+        'Sonntag_Montag_Dienstag_Mittwoch_Donnerstag_Freitag_Samstag'.split(
+            '_'
+        ),
+    weekdaysShort: 'So._Mo._Di._Mi._Do._Fr._Sa.'.split('_'),
+    weekdaysMin: 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY HH:mm',
+        LLLL: 'dddd, D. MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[heute um] LT [Uhr]',
+        sameElse: 'L',
+        nextDay: '[morgen um] LT [Uhr]',
+        nextWeek: 'dddd [um] LT [Uhr]',
+        lastDay: '[gestern um] LT [Uhr]',
+        lastWeek: '[letzten] dddd [um] LT [Uhr]',
+    },
+    relativeTime: {
+        future: 'in %s',
+        past: 'vor %s',
+        s: 'ein paar Sekunden',
+        ss: '%d Sekunden',
+        m: processRelativeTime,
+        mm: '%d Minuten',
+        h: processRelativeTime,
+        hh: '%d Stunden',
+        d: processRelativeTime,
+        dd: processRelativeTime,
+        w: processRelativeTime,
+        ww: '%d Wochen',
+        M: processRelativeTime,
+        MM: processRelativeTime,
+        y: processRelativeTime,
+        yy: processRelativeTime,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/dv.js b/backend/node_modules/moment/dist/locale/dv.js
new file mode 100644
index 0000000..26520d4
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/dv.js
@@ -0,0 +1,90 @@
+//! moment.js locale configuration
+//! locale : Maldivian [dv]
+//! author : Jawish Hameed : https://github.com/jawish
+
+import moment from '../moment';
+
+var months = [
+        'ޖެނުއަރީ',
+        'ފެބްރުއަރީ',
+        'މާރިޗު',
+        'އޭޕްރީލު',
+        'މޭ',
+        'ޖޫން',
+        'ޖުލައި',
+        'އޯގަސްޓު',
+        'ސެޕްޓެމްބަރު',
+        'އޮކްޓޯބަރު',
+        'ނޮވެމްބަރު',
+        'ޑިސެމްބަރު',
+    ],
+    weekdays = [
+        'އާދިއްތަ',
+        'ހޯމަ',
+        'އަންގާރަ',
+        'ބުދަ',
+        'ބުރާސްފަތި',
+        'ހުކުރު',
+        'ހޮނިހިރު',
+    ];
+
+export default moment.defineLocale('dv', {
+    months: months,
+    monthsShort: months,
+    weekdays: weekdays,
+    weekdaysShort: weekdays,
+    weekdaysMin: 'އާދި_ހޯމަ_އަން_ބުދަ_ބުރާ_ހުކު_ހޮނި'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'D/M/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    meridiemParse: /މކ|މފ/,
+    isPM: function (input) {
+        return 'މފ' === input;
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'މކ';
+        } else {
+            return 'މފ';
+        }
+    },
+    calendar: {
+        sameDay: '[މިއަދު] LT',
+        nextDay: '[މާދަމާ] LT',
+        nextWeek: 'dddd LT',
+        lastDay: '[އިއްޔެ] LT',
+        lastWeek: '[ފާއިތުވި] dddd LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'ތެރޭގައި %s',
+        past: 'ކުރިން %s',
+        s: 'ސިކުންތުކޮޅެއް',
+        ss: 'd% ސިކުންތު',
+        m: 'މިނިޓެއް',
+        mm: 'މިނިޓު %d',
+        h: 'ގަޑިއިރެއް',
+        hh: 'ގަޑިއިރު %d',
+        d: 'ދުވަހެއް',
+        dd: 'ދުވަސް %d',
+        M: 'މަހެއް',
+        MM: 'މަސް %d',
+        y: 'އަހަރެއް',
+        yy: 'އަހަރު %d',
+    },
+    preparse: function (string) {
+        return string.replace(/،/g, ',');
+    },
+    postformat: function (string) {
+        return string.replace(/,/g, '،');
+    },
+    week: {
+        dow: 7, // Sunday is the first day of the week.
+        doy: 12, // The week that contains Jan 12th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/el.js b/backend/node_modules/moment/dist/locale/el.js
new file mode 100644
index 0000000..8a596f1
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/el.js
@@ -0,0 +1,106 @@
+//! moment.js locale configuration
+//! locale : Greek [el]
+//! author : Aggelos Karalias : https://github.com/mehiel
+
+import moment from '../moment';
+
+function isFunction(input) {
+    return (
+        (typeof Function !== 'undefined' && input instanceof Function) ||
+        Object.prototype.toString.call(input) === '[object Function]'
+    );
+}
+
+export default moment.defineLocale('el', {
+    monthsNominativeEl:
+        'Ιανουάριος_Φεβρουάριος_Μάρτιος_Απρίλιος_Μάιος_Ιούνιος_Ιούλιος_Αύγουστος_Σεπτέμβριος_Οκτώβριος_Νοέμβριος_Δεκέμβριος'.split(
+            '_'
+        ),
+    monthsGenitiveEl:
+        'Ιανουαρίου_Φεβρουαρίου_Μαρτίου_Απριλίου_Μαΐου_Ιουνίου_Ιουλίου_Αυγούστου_Σεπτεμβρίου_Οκτωβρίου_Νοεμβρίου_Δεκεμβρίου'.split(
+            '_'
+        ),
+    months: function (momentToFormat, format) {
+        if (!momentToFormat) {
+            return this._monthsNominativeEl;
+        } else if (
+            typeof format === 'string' &&
+            /D/.test(format.substring(0, format.indexOf('MMMM')))
+        ) {
+            // if there is a day number before 'MMMM'
+            return this._monthsGenitiveEl[momentToFormat.month()];
+        } else {
+            return this._monthsNominativeEl[momentToFormat.month()];
+        }
+    },
+    monthsShort: 'Ιαν_Φεβ_Μαρ_Απρ_Μαϊ_Ιουν_Ιουλ_Αυγ_Σεπ_Οκτ_Νοε_Δεκ'.split('_'),
+    weekdays: 'Κυριακή_Δευτέρα_Τρίτη_Τετάρτη_Πέμπτη_Παρασκευή_Σάββατο'.split(
+        '_'
+    ),
+    weekdaysShort: 'Κυρ_Δευ_Τρι_Τετ_Πεμ_Παρ_Σαβ'.split('_'),
+    weekdaysMin: 'Κυ_Δε_Τρ_Τε_Πε_Πα_Σα'.split('_'),
+    meridiem: function (hours, minutes, isLower) {
+        if (hours > 11) {
+            return isLower ? 'μμ' : 'ΜΜ';
+        } else {
+            return isLower ? 'πμ' : 'ΠΜ';
+        }
+    },
+    isPM: function (input) {
+        return (input + '').toLowerCase()[0] === 'μ';
+    },
+    meridiemParse: /[ΠΜ]\.?Μ?\.?/i,
+    longDateFormat: {
+        LT: 'h:mm A',
+        LTS: 'h:mm:ss A',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY h:mm A',
+        LLLL: 'dddd, D MMMM YYYY h:mm A',
+    },
+    calendarEl: {
+        sameDay: '[Σήμερα {}] LT',
+        nextDay: '[Αύριο {}] LT',
+        nextWeek: 'dddd [{}] LT',
+        lastDay: '[Χθες {}] LT',
+        lastWeek: function () {
+            switch (this.day()) {
+                case 6:
+                    return '[το προηγούμενο] dddd [{}] LT';
+                default:
+                    return '[την προηγούμενη] dddd [{}] LT';
+            }
+        },
+        sameElse: 'L',
+    },
+    calendar: function (key, mom) {
+        var output = this._calendarEl[key],
+            hours = mom && mom.hours();
+        if (isFunction(output)) {
+            output = output.apply(mom);
+        }
+        return output.replace('{}', hours % 12 === 1 ? 'στη' : 'στις');
+    },
+    relativeTime: {
+        future: 'σε %s',
+        past: '%s πριν',
+        s: 'λίγα δευτερόλεπτα',
+        ss: '%d δευτερόλεπτα',
+        m: 'ένα λεπτό',
+        mm: '%d λεπτά',
+        h: 'μία ώρα',
+        hh: '%d ώρες',
+        d: 'μία μέρα',
+        dd: '%d μέρες',
+        M: 'ένας μήνας',
+        MM: '%d μήνες',
+        y: 'ένας χρόνος',
+        yy: '%d χρόνια',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}η/,
+    ordinal: '%dη',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4st is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/en-au.js b/backend/node_modules/moment/dist/locale/en-au.js
new file mode 100644
index 0000000..301e9db
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/en-au.js
@@ -0,0 +1,68 @@
+//! moment.js locale configuration
+//! locale : English (Australia) [en-au]
+//! author : Jared Morse : https://github.com/jarcoal
+
+import moment from '../moment';
+
+export default moment.defineLocale('en-au', {
+    months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+    weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+        '_'
+    ),
+    weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+    weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+    longDateFormat: {
+        LT: 'h:mm A',
+        LTS: 'h:mm:ss A',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY h:mm A',
+        LLLL: 'dddd, D MMMM YYYY h:mm A',
+    },
+    calendar: {
+        sameDay: '[Today at] LT',
+        nextDay: '[Tomorrow at] LT',
+        nextWeek: 'dddd [at] LT',
+        lastDay: '[Yesterday at] LT',
+        lastWeek: '[Last] dddd [at] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'in %s',
+        past: '%s ago',
+        s: 'a few seconds',
+        ss: '%d seconds',
+        m: 'a minute',
+        mm: '%d minutes',
+        h: 'an hour',
+        hh: '%d hours',
+        d: 'a day',
+        dd: '%d days',
+        M: 'a month',
+        MM: '%d months',
+        y: 'a year',
+        yy: '%d years',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+    ordinal: function (number) {
+        var b = number % 10,
+            output =
+                ~~((number % 100) / 10) === 1
+                    ? 'th'
+                    : b === 1
+                      ? 'st'
+                      : b === 2
+                        ? 'nd'
+                        : b === 3
+                          ? 'rd'
+                          : 'th';
+        return number + output;
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/en-ca.js b/backend/node_modules/moment/dist/locale/en-ca.js
new file mode 100644
index 0000000..8099e04
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/en-ca.js
@@ -0,0 +1,64 @@
+//! moment.js locale configuration
+//! locale : English (Canada) [en-ca]
+//! author : Jonathan Abourbih : https://github.com/jonbca
+
+import moment from '../moment';
+
+export default moment.defineLocale('en-ca', {
+    months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+    weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+        '_'
+    ),
+    weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+    weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+    longDateFormat: {
+        LT: 'h:mm A',
+        LTS: 'h:mm:ss A',
+        L: 'YYYY-MM-DD',
+        LL: 'MMMM D, YYYY',
+        LLL: 'MMMM D, YYYY h:mm A',
+        LLLL: 'dddd, MMMM D, YYYY h:mm A',
+    },
+    calendar: {
+        sameDay: '[Today at] LT',
+        nextDay: '[Tomorrow at] LT',
+        nextWeek: 'dddd [at] LT',
+        lastDay: '[Yesterday at] LT',
+        lastWeek: '[Last] dddd [at] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'in %s',
+        past: '%s ago',
+        s: 'a few seconds',
+        ss: '%d seconds',
+        m: 'a minute',
+        mm: '%d minutes',
+        h: 'an hour',
+        hh: '%d hours',
+        d: 'a day',
+        dd: '%d days',
+        M: 'a month',
+        MM: '%d months',
+        y: 'a year',
+        yy: '%d years',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+    ordinal: function (number) {
+        var b = number % 10,
+            output =
+                ~~((number % 100) / 10) === 1
+                    ? 'th'
+                    : b === 1
+                      ? 'st'
+                      : b === 2
+                        ? 'nd'
+                        : b === 3
+                          ? 'rd'
+                          : 'th';
+        return number + output;
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/en-gb.js b/backend/node_modules/moment/dist/locale/en-gb.js
new file mode 100644
index 0000000..acd544a
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/en-gb.js
@@ -0,0 +1,68 @@
+//! moment.js locale configuration
+//! locale : English (United Kingdom) [en-gb]
+//! author : Chris Gedrim : https://github.com/chrisgedrim
+
+import moment from '../moment';
+
+export default moment.defineLocale('en-gb', {
+    months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+    weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+        '_'
+    ),
+    weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+    weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Today at] LT',
+        nextDay: '[Tomorrow at] LT',
+        nextWeek: 'dddd [at] LT',
+        lastDay: '[Yesterday at] LT',
+        lastWeek: '[Last] dddd [at] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'in %s',
+        past: '%s ago',
+        s: 'a few seconds',
+        ss: '%d seconds',
+        m: 'a minute',
+        mm: '%d minutes',
+        h: 'an hour',
+        hh: '%d hours',
+        d: 'a day',
+        dd: '%d days',
+        M: 'a month',
+        MM: '%d months',
+        y: 'a year',
+        yy: '%d years',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+    ordinal: function (number) {
+        var b = number % 10,
+            output =
+                ~~((number % 100) / 10) === 1
+                    ? 'th'
+                    : b === 1
+                      ? 'st'
+                      : b === 2
+                        ? 'nd'
+                        : b === 3
+                          ? 'rd'
+                          : 'th';
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/en-ie.js b/backend/node_modules/moment/dist/locale/en-ie.js
new file mode 100644
index 0000000..8e79f63
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/en-ie.js
@@ -0,0 +1,68 @@
+//! moment.js locale configuration
+//! locale : English (Ireland) [en-ie]
+//! author : Chris Cartlidge : https://github.com/chriscartlidge
+
+import moment from '../moment';
+
+export default moment.defineLocale('en-ie', {
+    months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+    weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+        '_'
+    ),
+    weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+    weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Today at] LT',
+        nextDay: '[Tomorrow at] LT',
+        nextWeek: 'dddd [at] LT',
+        lastDay: '[Yesterday at] LT',
+        lastWeek: '[Last] dddd [at] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'in %s',
+        past: '%s ago',
+        s: 'a few seconds',
+        ss: '%d seconds',
+        m: 'a minute',
+        mm: '%d minutes',
+        h: 'an hour',
+        hh: '%d hours',
+        d: 'a day',
+        dd: '%d days',
+        M: 'a month',
+        MM: '%d months',
+        y: 'a year',
+        yy: '%d years',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+    ordinal: function (number) {
+        var b = number % 10,
+            output =
+                ~~((number % 100) / 10) === 1
+                    ? 'th'
+                    : b === 1
+                      ? 'st'
+                      : b === 2
+                        ? 'nd'
+                        : b === 3
+                          ? 'rd'
+                          : 'th';
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/en-il.js b/backend/node_modules/moment/dist/locale/en-il.js
new file mode 100644
index 0000000..94908df
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/en-il.js
@@ -0,0 +1,64 @@
+//! moment.js locale configuration
+//! locale : English (Israel) [en-il]
+//! author : Chris Gedrim : https://github.com/chrisgedrim
+
+import moment from '../moment';
+
+export default moment.defineLocale('en-il', {
+    months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+    weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+        '_'
+    ),
+    weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+    weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Today at] LT',
+        nextDay: '[Tomorrow at] LT',
+        nextWeek: 'dddd [at] LT',
+        lastDay: '[Yesterday at] LT',
+        lastWeek: '[Last] dddd [at] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'in %s',
+        past: '%s ago',
+        s: 'a few seconds',
+        ss: '%d seconds',
+        m: 'a minute',
+        mm: '%d minutes',
+        h: 'an hour',
+        hh: '%d hours',
+        d: 'a day',
+        dd: '%d days',
+        M: 'a month',
+        MM: '%d months',
+        y: 'a year',
+        yy: '%d years',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+    ordinal: function (number) {
+        var b = number % 10,
+            output =
+                ~~((number % 100) / 10) === 1
+                    ? 'th'
+                    : b === 1
+                      ? 'st'
+                      : b === 2
+                        ? 'nd'
+                        : b === 3
+                          ? 'rd'
+                          : 'th';
+        return number + output;
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/en-in.js b/backend/node_modules/moment/dist/locale/en-in.js
new file mode 100644
index 0000000..f685176
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/en-in.js
@@ -0,0 +1,68 @@
+//! moment.js locale configuration
+//! locale : English (India) [en-in]
+//! author : Jatin Agrawal : https://github.com/jatinag22
+
+import moment from '../moment';
+
+export default moment.defineLocale('en-in', {
+    months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+    weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+        '_'
+    ),
+    weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+    weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+    longDateFormat: {
+        LT: 'h:mm A',
+        LTS: 'h:mm:ss A',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY h:mm A',
+        LLLL: 'dddd, D MMMM YYYY h:mm A',
+    },
+    calendar: {
+        sameDay: '[Today at] LT',
+        nextDay: '[Tomorrow at] LT',
+        nextWeek: 'dddd [at] LT',
+        lastDay: '[Yesterday at] LT',
+        lastWeek: '[Last] dddd [at] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'in %s',
+        past: '%s ago',
+        s: 'a few seconds',
+        ss: '%d seconds',
+        m: 'a minute',
+        mm: '%d minutes',
+        h: 'an hour',
+        hh: '%d hours',
+        d: 'a day',
+        dd: '%d days',
+        M: 'a month',
+        MM: '%d months',
+        y: 'a year',
+        yy: '%d years',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+    ordinal: function (number) {
+        var b = number % 10,
+            output =
+                ~~((number % 100) / 10) === 1
+                    ? 'th'
+                    : b === 1
+                      ? 'st'
+                      : b === 2
+                        ? 'nd'
+                        : b === 3
+                          ? 'rd'
+                          : 'th';
+        return number + output;
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 1st is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/en-nz.js b/backend/node_modules/moment/dist/locale/en-nz.js
new file mode 100644
index 0000000..66c9bfc
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/en-nz.js
@@ -0,0 +1,68 @@
+//! moment.js locale configuration
+//! locale : English (New Zealand) [en-nz]
+//! author : Luke McGregor : https://github.com/lukemcgregor
+
+import moment from '../moment';
+
+export default moment.defineLocale('en-nz', {
+    months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+    weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+        '_'
+    ),
+    weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+    weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+    longDateFormat: {
+        LT: 'h:mm A',
+        LTS: 'h:mm:ss A',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY h:mm A',
+        LLLL: 'dddd, D MMMM YYYY h:mm A',
+    },
+    calendar: {
+        sameDay: '[Today at] LT',
+        nextDay: '[Tomorrow at] LT',
+        nextWeek: 'dddd [at] LT',
+        lastDay: '[Yesterday at] LT',
+        lastWeek: '[Last] dddd [at] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'in %s',
+        past: '%s ago',
+        s: 'a few seconds',
+        ss: '%d seconds',
+        m: 'a minute',
+        mm: '%d minutes',
+        h: 'an hour',
+        hh: '%d hours',
+        d: 'a day',
+        dd: '%d days',
+        M: 'a month',
+        MM: '%d months',
+        y: 'a year',
+        yy: '%d years',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+    ordinal: function (number) {
+        var b = number % 10,
+            output =
+                ~~((number % 100) / 10) === 1
+                    ? 'th'
+                    : b === 1
+                      ? 'st'
+                      : b === 2
+                        ? 'nd'
+                        : b === 3
+                          ? 'rd'
+                          : 'th';
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/en-sg.js b/backend/node_modules/moment/dist/locale/en-sg.js
new file mode 100644
index 0000000..b36bda4
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/en-sg.js
@@ -0,0 +1,68 @@
+//! moment.js locale configuration
+//! locale : English (Singapore) [en-sg]
+//! author : Matthew Castrillon-Madrigal : https://github.com/techdimension
+
+import moment from '../moment';
+
+export default moment.defineLocale('en-sg', {
+    months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+    weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+        '_'
+    ),
+    weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+    weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Today at] LT',
+        nextDay: '[Tomorrow at] LT',
+        nextWeek: 'dddd [at] LT',
+        lastDay: '[Yesterday at] LT',
+        lastWeek: '[Last] dddd [at] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'in %s',
+        past: '%s ago',
+        s: 'a few seconds',
+        ss: '%d seconds',
+        m: 'a minute',
+        mm: '%d minutes',
+        h: 'an hour',
+        hh: '%d hours',
+        d: 'a day',
+        dd: '%d days',
+        M: 'a month',
+        MM: '%d months',
+        y: 'a year',
+        yy: '%d years',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+    ordinal: function (number) {
+        var b = number % 10,
+            output =
+                ~~((number % 100) / 10) === 1
+                    ? 'th'
+                    : b === 1
+                      ? 'st'
+                      : b === 2
+                        ? 'nd'
+                        : b === 3
+                          ? 'rd'
+                          : 'th';
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/eo.js b/backend/node_modules/moment/dist/locale/eo.js
new file mode 100644
index 0000000..38d494a
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/eo.js
@@ -0,0 +1,68 @@
+//! moment.js locale configuration
+//! locale : Esperanto [eo]
+//! author : Colin Dean : https://github.com/colindean
+//! author : Mia Nordentoft Imperatori : https://github.com/miestasmia
+//! comment : miestasmia corrected the translation by colindean
+//! comment : Vivakvo corrected the translation by colindean and miestasmia
+
+import moment from '../moment';
+
+export default moment.defineLocale('eo', {
+    months: 'januaro_februaro_marto_aprilo_majo_junio_julio_aŭgusto_septembro_oktobro_novembro_decembro'.split(
+        '_'
+    ),
+    monthsShort: 'jan_feb_mart_apr_maj_jun_jul_aŭg_sept_okt_nov_dec'.split('_'),
+    weekdays: 'dimanĉo_lundo_mardo_merkredo_ĵaŭdo_vendredo_sabato'.split('_'),
+    weekdaysShort: 'dim_lun_mard_merk_ĵaŭ_ven_sab'.split('_'),
+    weekdaysMin: 'di_lu_ma_me_ĵa_ve_sa'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'YYYY-MM-DD',
+        LL: '[la] D[-an de] MMMM, YYYY',
+        LLL: '[la] D[-an de] MMMM, YYYY HH:mm',
+        LLLL: 'dddd[n], [la] D[-an de] MMMM, YYYY HH:mm',
+        llll: 'ddd, [la] D[-an de] MMM, YYYY HH:mm',
+    },
+    meridiemParse: /[ap]\.t\.m/i,
+    isPM: function (input) {
+        return input.charAt(0).toLowerCase() === 'p';
+    },
+    meridiem: function (hours, minutes, isLower) {
+        if (hours > 11) {
+            return isLower ? 'p.t.m.' : 'P.T.M.';
+        } else {
+            return isLower ? 'a.t.m.' : 'A.T.M.';
+        }
+    },
+    calendar: {
+        sameDay: '[Hodiaŭ je] LT',
+        nextDay: '[Morgaŭ je] LT',
+        nextWeek: 'dddd[n je] LT',
+        lastDay: '[Hieraŭ je] LT',
+        lastWeek: '[pasintan] dddd[n je] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'post %s',
+        past: 'antaŭ %s',
+        s: 'kelkaj sekundoj',
+        ss: '%d sekundoj',
+        m: 'unu minuto',
+        mm: '%d minutoj',
+        h: 'unu horo',
+        hh: '%d horoj',
+        d: 'unu tago', //ne 'diurno', ĉar estas uzita por proksimumo
+        dd: '%d tagoj',
+        M: 'unu monato',
+        MM: '%d monatoj',
+        y: 'unu jaro',
+        yy: '%d jaroj',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}a/,
+    ordinal: '%da',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/es-do.js b/backend/node_modules/moment/dist/locale/es-do.js
new file mode 100644
index 0000000..8c3ccfd
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/es-do.js
@@ -0,0 +1,108 @@
+//! moment.js locale configuration
+//! locale : Spanish (Dominican Republic) [es-do]
+
+import moment from '../moment';
+
+var monthsShortDot =
+        'ene._feb._mar._abr._may._jun._jul._ago._sep._oct._nov._dic.'.split(
+            '_'
+        ),
+    monthsShort = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_'),
+    monthsParse = [
+        /^ene/i,
+        /^feb/i,
+        /^mar/i,
+        /^abr/i,
+        /^may/i,
+        /^jun/i,
+        /^jul/i,
+        /^ago/i,
+        /^sep/i,
+        /^oct/i,
+        /^nov/i,
+        /^dic/i,
+    ],
+    monthsRegex =
+        /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre|ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i;
+
+export default moment.defineLocale('es-do', {
+    months: 'enero_febrero_marzo_abril_mayo_junio_julio_agosto_septiembre_octubre_noviembre_diciembre'.split(
+        '_'
+    ),
+    monthsShort: function (m, format) {
+        if (!m) {
+            return monthsShortDot;
+        } else if (/-MMM-/.test(format)) {
+            return monthsShort[m.month()];
+        } else {
+            return monthsShortDot[m.month()];
+        }
+    },
+    monthsRegex: monthsRegex,
+    monthsShortRegex: monthsRegex,
+    monthsStrictRegex:
+        /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre)/i,
+    monthsShortStrictRegex:
+        /^(ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i,
+    monthsParse: monthsParse,
+    longMonthsParse: monthsParse,
+    shortMonthsParse: monthsParse,
+    weekdays: 'domingo_lunes_martes_miércoles_jueves_viernes_sábado'.split('_'),
+    weekdaysShort: 'dom._lun._mar._mié._jue._vie._sáb.'.split('_'),
+    weekdaysMin: 'do_lu_ma_mi_ju_vi_sá'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'h:mm A',
+        LTS: 'h:mm:ss A',
+        L: 'DD/MM/YYYY',
+        LL: 'D [de] MMMM [de] YYYY',
+        LLL: 'D [de] MMMM [de] YYYY h:mm A',
+        LLLL: 'dddd, D [de] MMMM [de] YYYY h:mm A',
+    },
+    calendar: {
+        sameDay: function () {
+            return '[hoy a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        nextDay: function () {
+            return '[mañana a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        nextWeek: function () {
+            return 'dddd [a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        lastDay: function () {
+            return '[ayer a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        lastWeek: function () {
+            return (
+                '[el] dddd [pasado a la' +
+                (this.hours() !== 1 ? 's' : '') +
+                '] LT'
+            );
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'en %s',
+        past: 'hace %s',
+        s: 'unos segundos',
+        ss: '%d segundos',
+        m: 'un minuto',
+        mm: '%d minutos',
+        h: 'una hora',
+        hh: '%d horas',
+        d: 'un día',
+        dd: '%d días',
+        w: 'una semana',
+        ww: '%d semanas',
+        M: 'un mes',
+        MM: '%d meses',
+        y: 'un año',
+        yy: '%d años',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}º/,
+    ordinal: '%dº',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/es-mx.js b/backend/node_modules/moment/dist/locale/es-mx.js
new file mode 100644
index 0000000..43dd7cc
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/es-mx.js
@@ -0,0 +1,110 @@
+//! moment.js locale configuration
+//! locale : Spanish (Mexico) [es-mx]
+//! author : JC Franco : https://github.com/jcfranco
+
+import moment from '../moment';
+
+var monthsShortDot =
+        'ene._feb._mar._abr._may._jun._jul._ago._sep._oct._nov._dic.'.split(
+            '_'
+        ),
+    monthsShort = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_'),
+    monthsParse = [
+        /^ene/i,
+        /^feb/i,
+        /^mar/i,
+        /^abr/i,
+        /^may/i,
+        /^jun/i,
+        /^jul/i,
+        /^ago/i,
+        /^sep/i,
+        /^oct/i,
+        /^nov/i,
+        /^dic/i,
+    ],
+    monthsRegex =
+        /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre|ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i;
+
+export default moment.defineLocale('es-mx', {
+    months: 'enero_febrero_marzo_abril_mayo_junio_julio_agosto_septiembre_octubre_noviembre_diciembre'.split(
+        '_'
+    ),
+    monthsShort: function (m, format) {
+        if (!m) {
+            return monthsShortDot;
+        } else if (/-MMM-/.test(format)) {
+            return monthsShort[m.month()];
+        } else {
+            return monthsShortDot[m.month()];
+        }
+    },
+    monthsRegex: monthsRegex,
+    monthsShortRegex: monthsRegex,
+    monthsStrictRegex:
+        /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre)/i,
+    monthsShortStrictRegex:
+        /^(ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i,
+    monthsParse: monthsParse,
+    longMonthsParse: monthsParse,
+    shortMonthsParse: monthsParse,
+    weekdays: 'domingo_lunes_martes_miércoles_jueves_viernes_sábado'.split('_'),
+    weekdaysShort: 'dom._lun._mar._mié._jue._vie._sáb.'.split('_'),
+    weekdaysMin: 'do_lu_ma_mi_ju_vi_sá'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D [de] MMMM [de] YYYY',
+        LLL: 'D [de] MMMM [de] YYYY H:mm',
+        LLLL: 'dddd, D [de] MMMM [de] YYYY H:mm',
+    },
+    calendar: {
+        sameDay: function () {
+            return '[hoy a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        nextDay: function () {
+            return '[mañana a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        nextWeek: function () {
+            return 'dddd [a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        lastDay: function () {
+            return '[ayer a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        lastWeek: function () {
+            return (
+                '[el] dddd [pasado a la' +
+                (this.hours() !== 1 ? 's' : '') +
+                '] LT'
+            );
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'en %s',
+        past: 'hace %s',
+        s: 'unos segundos',
+        ss: '%d segundos',
+        m: 'un minuto',
+        mm: '%d minutos',
+        h: 'una hora',
+        hh: '%d horas',
+        d: 'un día',
+        dd: '%d días',
+        w: 'una semana',
+        ww: '%d semanas',
+        M: 'un mes',
+        MM: '%d meses',
+        y: 'un año',
+        yy: '%d años',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}º/,
+    ordinal: '%dº',
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+    invalidDate: 'Fecha inválida',
+});
diff --git a/backend/node_modules/moment/dist/locale/es-us.js b/backend/node_modules/moment/dist/locale/es-us.js
new file mode 100644
index 0000000..bac8cd8
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/es-us.js
@@ -0,0 +1,110 @@
+//! moment.js locale configuration
+//! locale : Spanish (United States) [es-us]
+//! author : bustta : https://github.com/bustta
+//! author : chrisrodz : https://github.com/chrisrodz
+
+import moment from '../moment';
+
+var monthsShortDot =
+        'ene._feb._mar._abr._may._jun._jul._ago._sep._oct._nov._dic.'.split(
+            '_'
+        ),
+    monthsShort = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_'),
+    monthsParse = [
+        /^ene/i,
+        /^feb/i,
+        /^mar/i,
+        /^abr/i,
+        /^may/i,
+        /^jun/i,
+        /^jul/i,
+        /^ago/i,
+        /^sep/i,
+        /^oct/i,
+        /^nov/i,
+        /^dic/i,
+    ],
+    monthsRegex =
+        /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre|ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i;
+
+export default moment.defineLocale('es-us', {
+    months: 'enero_febrero_marzo_abril_mayo_junio_julio_agosto_septiembre_octubre_noviembre_diciembre'.split(
+        '_'
+    ),
+    monthsShort: function (m, format) {
+        if (!m) {
+            return monthsShortDot;
+        } else if (/-MMM-/.test(format)) {
+            return monthsShort[m.month()];
+        } else {
+            return monthsShortDot[m.month()];
+        }
+    },
+    monthsRegex: monthsRegex,
+    monthsShortRegex: monthsRegex,
+    monthsStrictRegex:
+        /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre)/i,
+    monthsShortStrictRegex:
+        /^(ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i,
+    monthsParse: monthsParse,
+    longMonthsParse: monthsParse,
+    shortMonthsParse: monthsParse,
+    weekdays: 'domingo_lunes_martes_miércoles_jueves_viernes_sábado'.split('_'),
+    weekdaysShort: 'dom._lun._mar._mié._jue._vie._sáb.'.split('_'),
+    weekdaysMin: 'do_lu_ma_mi_ju_vi_sá'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'h:mm A',
+        LTS: 'h:mm:ss A',
+        L: 'MM/DD/YYYY',
+        LL: 'D [de] MMMM [de] YYYY',
+        LLL: 'D [de] MMMM [de] YYYY h:mm A',
+        LLLL: 'dddd, D [de] MMMM [de] YYYY h:mm A',
+    },
+    calendar: {
+        sameDay: function () {
+            return '[hoy a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        nextDay: function () {
+            return '[mañana a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        nextWeek: function () {
+            return 'dddd [a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        lastDay: function () {
+            return '[ayer a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        lastWeek: function () {
+            return (
+                '[el] dddd [pasado a la' +
+                (this.hours() !== 1 ? 's' : '') +
+                '] LT'
+            );
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'en %s',
+        past: 'hace %s',
+        s: 'unos segundos',
+        ss: '%d segundos',
+        m: 'un minuto',
+        mm: '%d minutos',
+        h: 'una hora',
+        hh: '%d horas',
+        d: 'un día',
+        dd: '%d días',
+        w: 'una semana',
+        ww: '%d semanas',
+        M: 'un mes',
+        MM: '%d meses',
+        y: 'un año',
+        yy: '%d años',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}º/,
+    ordinal: '%dº',
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/es.js b/backend/node_modules/moment/dist/locale/es.js
new file mode 100644
index 0000000..a3428ad
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/es.js
@@ -0,0 +1,110 @@
+//! moment.js locale configuration
+//! locale : Spanish [es]
+//! author : Julio Napurí : https://github.com/julionc
+
+import moment from '../moment';
+
+var monthsShortDot =
+        'ene._feb._mar._abr._may._jun._jul._ago._sep._oct._nov._dic.'.split(
+            '_'
+        ),
+    monthsShort = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_'),
+    monthsParse = [
+        /^ene/i,
+        /^feb/i,
+        /^mar/i,
+        /^abr/i,
+        /^may/i,
+        /^jun/i,
+        /^jul/i,
+        /^ago/i,
+        /^sep/i,
+        /^oct/i,
+        /^nov/i,
+        /^dic/i,
+    ],
+    monthsRegex =
+        /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre|ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i;
+
+export default moment.defineLocale('es', {
+    months: 'enero_febrero_marzo_abril_mayo_junio_julio_agosto_septiembre_octubre_noviembre_diciembre'.split(
+        '_'
+    ),
+    monthsShort: function (m, format) {
+        if (!m) {
+            return monthsShortDot;
+        } else if (/-MMM-/.test(format)) {
+            return monthsShort[m.month()];
+        } else {
+            return monthsShortDot[m.month()];
+        }
+    },
+    monthsRegex: monthsRegex,
+    monthsShortRegex: monthsRegex,
+    monthsStrictRegex:
+        /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre)/i,
+    monthsShortStrictRegex:
+        /^(ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i,
+    monthsParse: monthsParse,
+    longMonthsParse: monthsParse,
+    shortMonthsParse: monthsParse,
+    weekdays: 'domingo_lunes_martes_miércoles_jueves_viernes_sábado'.split('_'),
+    weekdaysShort: 'dom._lun._mar._mié._jue._vie._sáb.'.split('_'),
+    weekdaysMin: 'do_lu_ma_mi_ju_vi_sá'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D [de] MMMM [de] YYYY',
+        LLL: 'D [de] MMMM [de] YYYY H:mm',
+        LLLL: 'dddd, D [de] MMMM [de] YYYY H:mm',
+    },
+    calendar: {
+        sameDay: function () {
+            return '[hoy a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        nextDay: function () {
+            return '[mañana a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        nextWeek: function () {
+            return 'dddd [a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        lastDay: function () {
+            return '[ayer a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        lastWeek: function () {
+            return (
+                '[el] dddd [pasado a la' +
+                (this.hours() !== 1 ? 's' : '') +
+                '] LT'
+            );
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'en %s',
+        past: 'hace %s',
+        s: 'unos segundos',
+        ss: '%d segundos',
+        m: 'un minuto',
+        mm: '%d minutos',
+        h: 'una hora',
+        hh: '%d horas',
+        d: 'un día',
+        dd: '%d días',
+        w: 'una semana',
+        ww: '%d semanas',
+        M: 'un mes',
+        MM: '%d meses',
+        y: 'un año',
+        yy: '%d años',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}º/,
+    ordinal: '%dº',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+    invalidDate: 'Fecha inválida',
+});
diff --git a/backend/node_modules/moment/dist/locale/et.js b/backend/node_modules/moment/dist/locale/et.js
new file mode 100644
index 0000000..5da4ec4
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/et.js
@@ -0,0 +1,78 @@
+//! moment.js locale configuration
+//! locale : Estonian [et]
+//! author : Henry Kehlmann : https://github.com/madhenry
+//! improvements : Illimar Tambek : https://github.com/ragulka
+
+import moment from '../moment';
+
+function processRelativeTime(number, withoutSuffix, key, isFuture) {
+    var format = {
+        s: ['mõne sekundi', 'mõni sekund', 'paar sekundit'],
+        ss: [number + 'sekundi', number + 'sekundit'],
+        m: ['ühe minuti', 'üks minut'],
+        mm: [number + ' minuti', number + ' minutit'],
+        h: ['ühe tunni', 'tund aega', 'üks tund'],
+        hh: [number + ' tunni', number + ' tundi'],
+        d: ['ühe päeva', 'üks päev'],
+        M: ['kuu aja', 'kuu aega', 'üks kuu'],
+        MM: [number + ' kuu', number + ' kuud'],
+        y: ['ühe aasta', 'aasta', 'üks aasta'],
+        yy: [number + ' aasta', number + ' aastat'],
+    };
+    if (withoutSuffix) {
+        return format[key][2] ? format[key][2] : format[key][1];
+    }
+    return isFuture ? format[key][0] : format[key][1];
+}
+
+export default moment.defineLocale('et', {
+    months: 'jaanuar_veebruar_märts_aprill_mai_juuni_juuli_august_september_oktoober_november_detsember'.split(
+        '_'
+    ),
+    monthsShort:
+        'jaan_veebr_märts_apr_mai_juuni_juuli_aug_sept_okt_nov_dets'.split('_'),
+    weekdays:
+        'pühapäev_esmaspäev_teisipäev_kolmapäev_neljapäev_reede_laupäev'.split(
+            '_'
+        ),
+    weekdaysShort: 'P_E_T_K_N_R_L'.split('_'),
+    weekdaysMin: 'P_E_T_K_N_R_L'.split('_'),
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY H:mm',
+        LLLL: 'dddd, D. MMMM YYYY H:mm',
+    },
+    calendar: {
+        sameDay: '[Täna,] LT',
+        nextDay: '[Homme,] LT',
+        nextWeek: '[Järgmine] dddd LT',
+        lastDay: '[Eile,] LT',
+        lastWeek: '[Eelmine] dddd LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s pärast',
+        past: '%s tagasi',
+        s: processRelativeTime,
+        ss: processRelativeTime,
+        m: processRelativeTime,
+        mm: processRelativeTime,
+        h: processRelativeTime,
+        hh: processRelativeTime,
+        d: processRelativeTime,
+        dd: '%d päeva',
+        M: processRelativeTime,
+        MM: processRelativeTime,
+        y: processRelativeTime,
+        yy: processRelativeTime,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/eu.js b/backend/node_modules/moment/dist/locale/eu.js
new file mode 100644
index 0000000..261a17b
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/eu.js
@@ -0,0 +1,65 @@
+//! moment.js locale configuration
+//! locale : Basque [eu]
+//! author : Eneko Illarramendi : https://github.com/eillarra
+
+import moment from '../moment';
+
+export default moment.defineLocale('eu', {
+    months: 'urtarrila_otsaila_martxoa_apirila_maiatza_ekaina_uztaila_abuztua_iraila_urria_azaroa_abendua'.split(
+        '_'
+    ),
+    monthsShort:
+        'urt._ots._mar._api._mai._eka._uzt._abu._ira._urr._aza._abe.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays:
+        'igandea_astelehena_asteartea_asteazkena_osteguna_ostirala_larunbata'.split(
+            '_'
+        ),
+    weekdaysShort: 'ig._al._ar._az._og._ol._lr.'.split('_'),
+    weekdaysMin: 'ig_al_ar_az_og_ol_lr'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'YYYY-MM-DD',
+        LL: 'YYYY[ko] MMMM[ren] D[a]',
+        LLL: 'YYYY[ko] MMMM[ren] D[a] HH:mm',
+        LLLL: 'dddd, YYYY[ko] MMMM[ren] D[a] HH:mm',
+        l: 'YYYY-M-D',
+        ll: 'YYYY[ko] MMM D[a]',
+        lll: 'YYYY[ko] MMM D[a] HH:mm',
+        llll: 'ddd, YYYY[ko] MMM D[a] HH:mm',
+    },
+    calendar: {
+        sameDay: '[gaur] LT[etan]',
+        nextDay: '[bihar] LT[etan]',
+        nextWeek: 'dddd LT[etan]',
+        lastDay: '[atzo] LT[etan]',
+        lastWeek: '[aurreko] dddd LT[etan]',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s barru',
+        past: 'duela %s',
+        s: 'segundo batzuk',
+        ss: '%d segundo',
+        m: 'minutu bat',
+        mm: '%d minutu',
+        h: 'ordu bat',
+        hh: '%d ordu',
+        d: 'egun bat',
+        dd: '%d egun',
+        M: 'hilabete bat',
+        MM: '%d hilabete',
+        y: 'urte bat',
+        yy: '%d urte',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/fa.js b/backend/node_modules/moment/dist/locale/fa.js
new file mode 100644
index 0000000..52ffb72
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/fa.js
@@ -0,0 +1,113 @@
+//! moment.js locale configuration
+//! locale : Persian [fa]
+//! author : Ebrahim Byagowi : https://github.com/ebraminio
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '۱',
+        2: '۲',
+        3: '۳',
+        4: '۴',
+        5: '۵',
+        6: '۶',
+        7: '۷',
+        8: '۸',
+        9: '۹',
+        0: '۰',
+    },
+    numberMap = {
+        '۱': '1',
+        '۲': '2',
+        '۳': '3',
+        '۴': '4',
+        '۵': '5',
+        '۶': '6',
+        '۷': '7',
+        '۸': '8',
+        '۹': '9',
+        '۰': '0',
+    };
+
+export default moment.defineLocale('fa', {
+    months: 'ژانویه_فوریه_مارس_آوریل_مه_ژوئن_ژوئیه_اوت_سپتامبر_اکتبر_نوامبر_دسامبر'.split(
+        '_'
+    ),
+    monthsShort:
+        'ژانویه_فوریه_مارس_آوریل_مه_ژوئن_ژوئیه_اوت_سپتامبر_اکتبر_نوامبر_دسامبر'.split(
+            '_'
+        ),
+    weekdays:
+        'یک\u200cشنبه_دوشنبه_سه\u200cشنبه_چهارشنبه_پنج\u200cشنبه_جمعه_شنبه'.split(
+            '_'
+        ),
+    weekdaysShort:
+        'یک\u200cشنبه_دوشنبه_سه\u200cشنبه_چهارشنبه_پنج\u200cشنبه_جمعه_شنبه'.split(
+            '_'
+        ),
+    weekdaysMin: 'ی_د_س_چ_پ_ج_ش'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    meridiemParse: /قبل از ظهر|بعد از ظهر/,
+    isPM: function (input) {
+        return /بعد از ظهر/.test(input);
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'قبل از ظهر';
+        } else {
+            return 'بعد از ظهر';
+        }
+    },
+    calendar: {
+        sameDay: '[امروز ساعت] LT',
+        nextDay: '[فردا ساعت] LT',
+        nextWeek: 'dddd [ساعت] LT',
+        lastDay: '[دیروز ساعت] LT',
+        lastWeek: 'dddd [پیش] [ساعت] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'در %s',
+        past: '%s پیش',
+        s: 'چند ثانیه',
+        ss: '%d ثانیه',
+        m: 'یک دقیقه',
+        mm: '%d دقیقه',
+        h: 'یک ساعت',
+        hh: '%d ساعت',
+        d: 'یک روز',
+        dd: '%d روز',
+        M: 'یک ماه',
+        MM: '%d ماه',
+        y: 'یک سال',
+        yy: '%d سال',
+    },
+    preparse: function (string) {
+        return string
+            .replace(/[۰-۹]/g, function (match) {
+                return numberMap[match];
+            })
+            .replace(/،/g, ',');
+    },
+    postformat: function (string) {
+        return string
+            .replace(/\d/g, function (match) {
+                return symbolMap[match];
+            })
+            .replace(/,/g, '،');
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}م/,
+    ordinal: '%dم',
+    week: {
+        dow: 6, // Saturday is the first day of the week.
+        doy: 12, // The week that contains Jan 12th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/fi.js b/backend/node_modules/moment/dist/locale/fi.js
new file mode 100644
index 0000000..2e20bff
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/fi.js
@@ -0,0 +1,124 @@
+//! moment.js locale configuration
+//! locale : Finnish [fi]
+//! author : Tarmo Aidantausta : https://github.com/bleadof
+
+import moment from '../moment';
+
+var numbersPast =
+        'nolla yksi kaksi kolme neljä viisi kuusi seitsemän kahdeksan yhdeksän'.split(
+            ' '
+        ),
+    numbersFuture = [
+        'nolla',
+        'yhden',
+        'kahden',
+        'kolmen',
+        'neljän',
+        'viiden',
+        'kuuden',
+        numbersPast[7],
+        numbersPast[8],
+        numbersPast[9],
+    ];
+function translate(number, withoutSuffix, key, isFuture) {
+    var result = '';
+    switch (key) {
+        case 's':
+            return isFuture ? 'muutaman sekunnin' : 'muutama sekunti';
+        case 'ss':
+            result = isFuture ? 'sekunnin' : 'sekuntia';
+            break;
+        case 'm':
+            return isFuture ? 'minuutin' : 'minuutti';
+        case 'mm':
+            result = isFuture ? 'minuutin' : 'minuuttia';
+            break;
+        case 'h':
+            return isFuture ? 'tunnin' : 'tunti';
+        case 'hh':
+            result = isFuture ? 'tunnin' : 'tuntia';
+            break;
+        case 'd':
+            return isFuture ? 'päivän' : 'päivä';
+        case 'dd':
+            result = isFuture ? 'päivän' : 'päivää';
+            break;
+        case 'M':
+            return isFuture ? 'kuukauden' : 'kuukausi';
+        case 'MM':
+            result = isFuture ? 'kuukauden' : 'kuukautta';
+            break;
+        case 'y':
+            return isFuture ? 'vuoden' : 'vuosi';
+        case 'yy':
+            result = isFuture ? 'vuoden' : 'vuotta';
+            break;
+    }
+    result = verbalNumber(number, isFuture) + ' ' + result;
+    return result;
+}
+function verbalNumber(number, isFuture) {
+    return number < 10
+        ? isFuture
+            ? numbersFuture[number]
+            : numbersPast[number]
+        : number;
+}
+
+export default moment.defineLocale('fi', {
+    months: 'tammikuu_helmikuu_maaliskuu_huhtikuu_toukokuu_kesäkuu_heinäkuu_elokuu_syyskuu_lokakuu_marraskuu_joulukuu'.split(
+        '_'
+    ),
+    monthsShort:
+        'tammi_helmi_maalis_huhti_touko_kesä_heinä_elo_syys_loka_marras_joulu'.split(
+            '_'
+        ),
+    weekdays:
+        'sunnuntai_maanantai_tiistai_keskiviikko_torstai_perjantai_lauantai'.split(
+            '_'
+        ),
+    weekdaysShort: 'su_ma_ti_ke_to_pe_la'.split('_'),
+    weekdaysMin: 'su_ma_ti_ke_to_pe_la'.split('_'),
+    longDateFormat: {
+        LT: 'HH.mm',
+        LTS: 'HH.mm.ss',
+        L: 'DD.MM.YYYY',
+        LL: 'Do MMMM[ta] YYYY',
+        LLL: 'Do MMMM[ta] YYYY, [klo] HH.mm',
+        LLLL: 'dddd, Do MMMM[ta] YYYY, [klo] HH.mm',
+        l: 'D.M.YYYY',
+        ll: 'Do MMM YYYY',
+        lll: 'Do MMM YYYY, [klo] HH.mm',
+        llll: 'ddd, Do MMM YYYY, [klo] HH.mm',
+    },
+    calendar: {
+        sameDay: '[tänään] [klo] LT',
+        nextDay: '[huomenna] [klo] LT',
+        nextWeek: 'dddd [klo] LT',
+        lastDay: '[eilen] [klo] LT',
+        lastWeek: '[viime] dddd[na] [klo] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s päästä',
+        past: '%s sitten',
+        s: translate,
+        ss: translate,
+        m: translate,
+        mm: translate,
+        h: translate,
+        hh: translate,
+        d: translate,
+        dd: translate,
+        M: translate,
+        MM: translate,
+        y: translate,
+        yy: translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/fil.js b/backend/node_modules/moment/dist/locale/fil.js
new file mode 100644
index 0000000..e0447aa
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/fil.js
@@ -0,0 +1,58 @@
+//! moment.js locale configuration
+//! locale : Filipino [fil]
+//! author : Dan Hagman : https://github.com/hagmandan
+//! author : Matthew Co : https://github.com/matthewdeeco
+
+import moment from '../moment';
+
+export default moment.defineLocale('fil', {
+    months: 'Enero_Pebrero_Marso_Abril_Mayo_Hunyo_Hulyo_Agosto_Setyembre_Oktubre_Nobyembre_Disyembre'.split(
+        '_'
+    ),
+    monthsShort: 'Ene_Peb_Mar_Abr_May_Hun_Hul_Ago_Set_Okt_Nob_Dis'.split('_'),
+    weekdays: 'Linggo_Lunes_Martes_Miyerkules_Huwebes_Biyernes_Sabado'.split(
+        '_'
+    ),
+    weekdaysShort: 'Lin_Lun_Mar_Miy_Huw_Biy_Sab'.split('_'),
+    weekdaysMin: 'Li_Lu_Ma_Mi_Hu_Bi_Sab'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'MM/D/YYYY',
+        LL: 'MMMM D, YYYY',
+        LLL: 'MMMM D, YYYY HH:mm',
+        LLLL: 'dddd, MMMM DD, YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: 'LT [ngayong araw]',
+        nextDay: '[Bukas ng] LT',
+        nextWeek: 'LT [sa susunod na] dddd',
+        lastDay: 'LT [kahapon]',
+        lastWeek: 'LT [noong nakaraang] dddd',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'sa loob ng %s',
+        past: '%s ang nakalipas',
+        s: 'ilang segundo',
+        ss: '%d segundo',
+        m: 'isang minuto',
+        mm: '%d minuto',
+        h: 'isang oras',
+        hh: '%d oras',
+        d: 'isang araw',
+        dd: '%d araw',
+        M: 'isang buwan',
+        MM: '%d buwan',
+        y: 'isang taon',
+        yy: '%d taon',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}/,
+    ordinal: function (number) {
+        return number;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/fo.js b/backend/node_modules/moment/dist/locale/fo.js
new file mode 100644
index 0000000..c8fd0bc
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/fo.js
@@ -0,0 +1,57 @@
+//! moment.js locale configuration
+//! locale : Faroese [fo]
+//! author : Ragnar Johannesen : https://github.com/ragnar123
+//! author : Kristian Sakarisson : https://github.com/sakarisson
+
+import moment from '../moment';
+
+export default moment.defineLocale('fo', {
+    months: 'januar_februar_mars_apríl_mai_juni_juli_august_september_oktober_november_desember'.split(
+        '_'
+    ),
+    monthsShort: 'jan_feb_mar_apr_mai_jun_jul_aug_sep_okt_nov_des'.split('_'),
+    weekdays:
+        'sunnudagur_mánadagur_týsdagur_mikudagur_hósdagur_fríggjadagur_leygardagur'.split(
+            '_'
+        ),
+    weekdaysShort: 'sun_mán_týs_mik_hós_frí_ley'.split('_'),
+    weekdaysMin: 'su_má_tý_mi_hó_fr_le'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D. MMMM, YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Í dag kl.] LT',
+        nextDay: '[Í morgin kl.] LT',
+        nextWeek: 'dddd [kl.] LT',
+        lastDay: '[Í gjár kl.] LT',
+        lastWeek: '[síðstu] dddd [kl] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'um %s',
+        past: '%s síðani',
+        s: 'fá sekund',
+        ss: '%d sekundir',
+        m: 'ein minuttur',
+        mm: '%d minuttir',
+        h: 'ein tími',
+        hh: '%d tímar',
+        d: 'ein dagur',
+        dd: '%d dagar',
+        M: 'ein mánaður',
+        MM: '%d mánaðir',
+        y: 'eitt ár',
+        yy: '%d ár',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/fr-ca.js b/backend/node_modules/moment/dist/locale/fr-ca.js
new file mode 100644
index 0000000..6187291
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/fr-ca.js
@@ -0,0 +1,70 @@
+//! moment.js locale configuration
+//! locale : French (Canada) [fr-ca]
+//! author : Jonathan Abourbih : https://github.com/jonbca
+
+import moment from '../moment';
+
+export default moment.defineLocale('fr-ca', {
+    months: 'janvier_février_mars_avril_mai_juin_juillet_août_septembre_octobre_novembre_décembre'.split(
+        '_'
+    ),
+    monthsShort:
+        'janv._févr._mars_avr._mai_juin_juil._août_sept._oct._nov._déc.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'dimanche_lundi_mardi_mercredi_jeudi_vendredi_samedi'.split('_'),
+    weekdaysShort: 'dim._lun._mar._mer._jeu._ven._sam.'.split('_'),
+    weekdaysMin: 'di_lu_ma_me_je_ve_sa'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'YYYY-MM-DD',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Aujourd’hui à] LT',
+        nextDay: '[Demain à] LT',
+        nextWeek: 'dddd [à] LT',
+        lastDay: '[Hier à] LT',
+        lastWeek: 'dddd [dernier à] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'dans %s',
+        past: 'il y a %s',
+        s: 'quelques secondes',
+        ss: '%d secondes',
+        m: 'une minute',
+        mm: '%d minutes',
+        h: 'une heure',
+        hh: '%d heures',
+        d: 'un jour',
+        dd: '%d jours',
+        M: 'un mois',
+        MM: '%d mois',
+        y: 'un an',
+        yy: '%d ans',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(er|e)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            // Words with masculine grammatical gender: mois, trimestre, jour
+            default:
+            case 'M':
+            case 'Q':
+            case 'D':
+            case 'DDD':
+            case 'd':
+                return number + (number === 1 ? 'er' : 'e');
+
+            // Words with feminine grammatical gender: semaine
+            case 'w':
+            case 'W':
+                return number + (number === 1 ? 're' : 'e');
+        }
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/fr-ch.js b/backend/node_modules/moment/dist/locale/fr-ch.js
new file mode 100644
index 0000000..2cc90d8
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/fr-ch.js
@@ -0,0 +1,74 @@
+//! moment.js locale configuration
+//! locale : French (Switzerland) [fr-ch]
+//! author : Gaspard Bucher : https://github.com/gaspard
+
+import moment from '../moment';
+
+export default moment.defineLocale('fr-ch', {
+    months: 'janvier_février_mars_avril_mai_juin_juillet_août_septembre_octobre_novembre_décembre'.split(
+        '_'
+    ),
+    monthsShort:
+        'janv._févr._mars_avr._mai_juin_juil._août_sept._oct._nov._déc.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'dimanche_lundi_mardi_mercredi_jeudi_vendredi_samedi'.split('_'),
+    weekdaysShort: 'dim._lun._mar._mer._jeu._ven._sam.'.split('_'),
+    weekdaysMin: 'di_lu_ma_me_je_ve_sa'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Aujourd’hui à] LT',
+        nextDay: '[Demain à] LT',
+        nextWeek: 'dddd [à] LT',
+        lastDay: '[Hier à] LT',
+        lastWeek: 'dddd [dernier à] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'dans %s',
+        past: 'il y a %s',
+        s: 'quelques secondes',
+        ss: '%d secondes',
+        m: 'une minute',
+        mm: '%d minutes',
+        h: 'une heure',
+        hh: '%d heures',
+        d: 'un jour',
+        dd: '%d jours',
+        M: 'un mois',
+        MM: '%d mois',
+        y: 'un an',
+        yy: '%d ans',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(er|e)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            // Words with masculine grammatical gender: mois, trimestre, jour
+            default:
+            case 'M':
+            case 'Q':
+            case 'D':
+            case 'DDD':
+            case 'd':
+                return number + (number === 1 ? 'er' : 'e');
+
+            // Words with feminine grammatical gender: semaine
+            case 'w':
+            case 'W':
+                return number + (number === 1 ? 're' : 'e');
+        }
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/fr.js b/backend/node_modules/moment/dist/locale/fr.js
new file mode 100644
index 0000000..a3afb4b
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/fr.js
@@ -0,0 +1,108 @@
+//! moment.js locale configuration
+//! locale : French [fr]
+//! author : John Fischer : https://github.com/jfroffice
+
+import moment from '../moment';
+
+var monthsStrictRegex =
+        /^(janvier|février|mars|avril|mai|juin|juillet|août|septembre|octobre|novembre|décembre)/i,
+    monthsShortStrictRegex =
+        /(janv\.?|févr\.?|mars|avr\.?|mai|juin|juil\.?|août|sept\.?|oct\.?|nov\.?|déc\.?)/i,
+    monthsRegex =
+        /(janv\.?|févr\.?|mars|avr\.?|mai|juin|juil\.?|août|sept\.?|oct\.?|nov\.?|déc\.?|janvier|février|mars|avril|mai|juin|juillet|août|septembre|octobre|novembre|décembre)/i,
+    monthsParse = [
+        /^janv/i,
+        /^févr/i,
+        /^mars/i,
+        /^avr/i,
+        /^mai/i,
+        /^juin/i,
+        /^juil/i,
+        /^août/i,
+        /^sept/i,
+        /^oct/i,
+        /^nov/i,
+        /^déc/i,
+    ];
+
+export default moment.defineLocale('fr', {
+    months: 'janvier_février_mars_avril_mai_juin_juillet_août_septembre_octobre_novembre_décembre'.split(
+        '_'
+    ),
+    monthsShort:
+        'janv._févr._mars_avr._mai_juin_juil._août_sept._oct._nov._déc.'.split(
+            '_'
+        ),
+    monthsRegex: monthsRegex,
+    monthsShortRegex: monthsRegex,
+    monthsStrictRegex: monthsStrictRegex,
+    monthsShortStrictRegex: monthsShortStrictRegex,
+    monthsParse: monthsParse,
+    longMonthsParse: monthsParse,
+    shortMonthsParse: monthsParse,
+    weekdays: 'dimanche_lundi_mardi_mercredi_jeudi_vendredi_samedi'.split('_'),
+    weekdaysShort: 'dim._lun._mar._mer._jeu._ven._sam.'.split('_'),
+    weekdaysMin: 'di_lu_ma_me_je_ve_sa'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Aujourd’hui à] LT',
+        nextDay: '[Demain à] LT',
+        nextWeek: 'dddd [à] LT',
+        lastDay: '[Hier à] LT',
+        lastWeek: 'dddd [dernier à] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'dans %s',
+        past: 'il y a %s',
+        s: 'quelques secondes',
+        ss: '%d secondes',
+        m: 'une minute',
+        mm: '%d minutes',
+        h: 'une heure',
+        hh: '%d heures',
+        d: 'un jour',
+        dd: '%d jours',
+        w: 'une semaine',
+        ww: '%d semaines',
+        M: 'un mois',
+        MM: '%d mois',
+        y: 'un an',
+        yy: '%d ans',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(er|)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            // TODO: Return 'e' when day of month > 1. Move this case inside
+            // block for masculine words below.
+            // See https://github.com/moment/moment/issues/3375
+            case 'D':
+                return number + (number === 1 ? 'er' : '');
+
+            // Words with masculine grammatical gender: mois, trimestre, jour
+            default:
+            case 'M':
+            case 'Q':
+            case 'DDD':
+            case 'd':
+                return number + (number === 1 ? 'er' : 'e');
+
+            // Words with feminine grammatical gender: semaine
+            case 'w':
+            case 'W':
+                return number + (number === 1 ? 're' : 'e');
+        }
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/fy.js b/backend/node_modules/moment/dist/locale/fy.js
new file mode 100644
index 0000000..4844587
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/fy.js
@@ -0,0 +1,75 @@
+//! moment.js locale configuration
+//! locale : Frisian [fy]
+//! author : Robin van der Vliet : https://github.com/robin0van0der0v
+
+import moment from '../moment';
+
+var monthsShortWithDots =
+        'jan._feb._mrt._apr._mai_jun._jul._aug._sep._okt._nov._des.'.split('_'),
+    monthsShortWithoutDots =
+        'jan_feb_mrt_apr_mai_jun_jul_aug_sep_okt_nov_des'.split('_');
+
+export default moment.defineLocale('fy', {
+    months: 'jannewaris_febrewaris_maart_april_maaie_juny_july_augustus_septimber_oktober_novimber_desimber'.split(
+        '_'
+    ),
+    monthsShort: function (m, format) {
+        if (!m) {
+            return monthsShortWithDots;
+        } else if (/-MMM-/.test(format)) {
+            return monthsShortWithoutDots[m.month()];
+        } else {
+            return monthsShortWithDots[m.month()];
+        }
+    },
+    monthsParseExact: true,
+    weekdays: 'snein_moandei_tiisdei_woansdei_tongersdei_freed_sneon'.split(
+        '_'
+    ),
+    weekdaysShort: 'si._mo._ti._wo._to._fr._so.'.split('_'),
+    weekdaysMin: 'Si_Mo_Ti_Wo_To_Fr_So'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD-MM-YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[hjoed om] LT',
+        nextDay: '[moarn om] LT',
+        nextWeek: 'dddd [om] LT',
+        lastDay: '[juster om] LT',
+        lastWeek: '[ôfrûne] dddd [om] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'oer %s',
+        past: '%s lyn',
+        s: 'in pear sekonden',
+        ss: '%d sekonden',
+        m: 'ien minút',
+        mm: '%d minuten',
+        h: 'ien oere',
+        hh: '%d oeren',
+        d: 'ien dei',
+        dd: '%d dagen',
+        M: 'ien moanne',
+        MM: '%d moannen',
+        y: 'ien jier',
+        yy: '%d jierren',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
+    ordinal: function (number) {
+        return (
+            number +
+            (number === 1 || number === 8 || number >= 20 ? 'ste' : 'de')
+        );
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ga.js b/backend/node_modules/moment/dist/locale/ga.js
new file mode 100644
index 0000000..7f36fb6
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ga.js
@@ -0,0 +1,95 @@
+//! moment.js locale configuration
+//! locale : Irish or Irish Gaelic [ga]
+//! author : André Silva : https://github.com/askpt
+
+import moment from '../moment';
+
+var months = [
+        'Eanáir',
+        'Feabhra',
+        'Márta',
+        'Aibreán',
+        'Bealtaine',
+        'Meitheamh',
+        'Iúil',
+        'Lúnasa',
+        'Meán Fómhair',
+        'Deireadh Fómhair',
+        'Samhain',
+        'Nollaig',
+    ],
+    monthsShort = [
+        'Ean',
+        'Feabh',
+        'Márt',
+        'Aib',
+        'Beal',
+        'Meith',
+        'Iúil',
+        'Lún',
+        'M.F.',
+        'D.F.',
+        'Samh',
+        'Noll',
+    ],
+    weekdays = [
+        'Dé Domhnaigh',
+        'Dé Luain',
+        'Dé Máirt',
+        'Dé Céadaoin',
+        'Déardaoin',
+        'Dé hAoine',
+        'Dé Sathairn',
+    ],
+    weekdaysShort = ['Domh', 'Luan', 'Máirt', 'Céad', 'Déar', 'Aoine', 'Sath'],
+    weekdaysMin = ['Do', 'Lu', 'Má', 'Cé', 'Dé', 'A', 'Sa'];
+
+export default moment.defineLocale('ga', {
+    months: months,
+    monthsShort: monthsShort,
+    monthsParseExact: true,
+    weekdays: weekdays,
+    weekdaysShort: weekdaysShort,
+    weekdaysMin: weekdaysMin,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Inniu ag] LT',
+        nextDay: '[Amárach ag] LT',
+        nextWeek: 'dddd [ag] LT',
+        lastDay: '[Inné ag] LT',
+        lastWeek: 'dddd [seo caite] [ag] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'i %s',
+        past: '%s ó shin',
+        s: 'cúpla soicind',
+        ss: '%d soicind',
+        m: 'nóiméad',
+        mm: '%d nóiméad',
+        h: 'uair an chloig',
+        hh: '%d uair an chloig',
+        d: 'lá',
+        dd: '%d lá',
+        M: 'mí',
+        MM: '%d míonna',
+        y: 'bliain',
+        yy: '%d bliain',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(d|na|mh)/,
+    ordinal: function (number) {
+        var output = number === 1 ? 'd' : number % 10 === 2 ? 'na' : 'mh';
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/gd.js b/backend/node_modules/moment/dist/locale/gd.js
new file mode 100644
index 0000000..81f735b
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/gd.js
@@ -0,0 +1,95 @@
+//! moment.js locale configuration
+//! locale : Scottish Gaelic [gd]
+//! author : Jon Ashdown : https://github.com/jonashdown
+
+import moment from '../moment';
+
+var months = [
+        'Am Faoilleach',
+        'An Gearran',
+        'Am Màrt',
+        'An Giblean',
+        'An Cèitean',
+        'An t-Ògmhios',
+        'An t-Iuchar',
+        'An Lùnastal',
+        'An t-Sultain',
+        'An Dàmhair',
+        'An t-Samhain',
+        'An Dùbhlachd',
+    ],
+    monthsShort = [
+        'Faoi',
+        'Gear',
+        'Màrt',
+        'Gibl',
+        'Cèit',
+        'Ògmh',
+        'Iuch',
+        'Lùn',
+        'Sult',
+        'Dàmh',
+        'Samh',
+        'Dùbh',
+    ],
+    weekdays = [
+        'Didòmhnaich',
+        'Diluain',
+        'Dimàirt',
+        'Diciadain',
+        'Diardaoin',
+        'Dihaoine',
+        'Disathairne',
+    ],
+    weekdaysShort = ['Did', 'Dil', 'Dim', 'Dic', 'Dia', 'Dih', 'Dis'],
+    weekdaysMin = ['Dò', 'Lu', 'Mà', 'Ci', 'Ar', 'Ha', 'Sa'];
+
+export default moment.defineLocale('gd', {
+    months: months,
+    monthsShort: monthsShort,
+    monthsParseExact: true,
+    weekdays: weekdays,
+    weekdaysShort: weekdaysShort,
+    weekdaysMin: weekdaysMin,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[An-diugh aig] LT',
+        nextDay: '[A-màireach aig] LT',
+        nextWeek: 'dddd [aig] LT',
+        lastDay: '[An-dè aig] LT',
+        lastWeek: 'dddd [seo chaidh] [aig] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'ann an %s',
+        past: 'bho chionn %s',
+        s: 'beagan diogan',
+        ss: '%d diogan',
+        m: 'mionaid',
+        mm: '%d mionaidean',
+        h: 'uair',
+        hh: '%d uairean',
+        d: 'latha',
+        dd: '%d latha',
+        M: 'mìos',
+        MM: '%d mìosan',
+        y: 'bliadhna',
+        yy: '%d bliadhna',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(d|na|mh)/,
+    ordinal: function (number) {
+        var output = number === 1 ? 'd' : number % 10 === 2 ? 'na' : 'mh';
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/gl.js b/backend/node_modules/moment/dist/locale/gl.js
new file mode 100644
index 0000000..980591c
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/gl.js
@@ -0,0 +1,75 @@
+//! moment.js locale configuration
+//! locale : Galician [gl]
+//! author : Juan G. Hurtado : https://github.com/juanghurtado
+
+import moment from '../moment';
+
+export default moment.defineLocale('gl', {
+    months: 'xaneiro_febreiro_marzo_abril_maio_xuño_xullo_agosto_setembro_outubro_novembro_decembro'.split(
+        '_'
+    ),
+    monthsShort:
+        'xan._feb._mar._abr._mai._xuñ._xul._ago._set._out._nov._dec.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'domingo_luns_martes_mércores_xoves_venres_sábado'.split('_'),
+    weekdaysShort: 'dom._lun._mar._mér._xov._ven._sáb.'.split('_'),
+    weekdaysMin: 'do_lu_ma_mé_xo_ve_sá'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D [de] MMMM [de] YYYY',
+        LLL: 'D [de] MMMM [de] YYYY H:mm',
+        LLLL: 'dddd, D [de] MMMM [de] YYYY H:mm',
+    },
+    calendar: {
+        sameDay: function () {
+            return '[hoxe ' + (this.hours() !== 1 ? 'ás' : 'á') + '] LT';
+        },
+        nextDay: function () {
+            return '[mañá ' + (this.hours() !== 1 ? 'ás' : 'á') + '] LT';
+        },
+        nextWeek: function () {
+            return 'dddd [' + (this.hours() !== 1 ? 'ás' : 'a') + '] LT';
+        },
+        lastDay: function () {
+            return '[onte ' + (this.hours() !== 1 ? 'á' : 'a') + '] LT';
+        },
+        lastWeek: function () {
+            return (
+                '[o] dddd [pasado ' + (this.hours() !== 1 ? 'ás' : 'a') + '] LT'
+            );
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: function (str) {
+            if (str.indexOf('un') === 0) {
+                return 'n' + str;
+            }
+            return 'en ' + str;
+        },
+        past: 'hai %s',
+        s: 'uns segundos',
+        ss: '%d segundos',
+        m: 'un minuto',
+        mm: '%d minutos',
+        h: 'unha hora',
+        hh: '%d horas',
+        d: 'un día',
+        dd: '%d días',
+        M: 'un mes',
+        MM: '%d meses',
+        y: 'un ano',
+        yy: '%d anos',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}º/,
+    ordinal: '%dº',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/gom-deva.js b/backend/node_modules/moment/dist/locale/gom-deva.js
new file mode 100644
index 0000000..294e358
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/gom-deva.js
@@ -0,0 +1,126 @@
+//! moment.js locale configuration
+//! locale : Konkani Devanagari script [gom-deva]
+//! author : The Discoverer : https://github.com/WikiDiscoverer
+
+import moment from '../moment';
+
+function processRelativeTime(number, withoutSuffix, key, isFuture) {
+    var format = {
+        s: ['थोडया सॅकंडांनी', 'थोडे सॅकंड'],
+        ss: [number + ' सॅकंडांनी', number + ' सॅकंड'],
+        m: ['एका मिणटान', 'एक मिनूट'],
+        mm: [number + ' मिणटांनी', number + ' मिणटां'],
+        h: ['एका वरान', 'एक वर'],
+        hh: [number + ' वरांनी', number + ' वरां'],
+        d: ['एका दिसान', 'एक दीस'],
+        dd: [number + ' दिसांनी', number + ' दीस'],
+        M: ['एका म्हयन्यान', 'एक म्हयनो'],
+        MM: [number + ' म्हयन्यानी', number + ' म्हयने'],
+        y: ['एका वर्सान', 'एक वर्स'],
+        yy: [number + ' वर्सांनी', number + ' वर्सां'],
+    };
+    return isFuture ? format[key][0] : format[key][1];
+}
+
+export default moment.defineLocale('gom-deva', {
+    months: {
+        standalone:
+            'जानेवारी_फेब्रुवारी_मार्च_एप्रील_मे_जून_जुलय_ऑगस्ट_सप्टेंबर_ऑक्टोबर_नोव्हेंबर_डिसेंबर'.split(
+                '_'
+            ),
+        format: 'जानेवारीच्या_फेब्रुवारीच्या_मार्चाच्या_एप्रीलाच्या_मेयाच्या_जूनाच्या_जुलयाच्या_ऑगस्टाच्या_सप्टेंबराच्या_ऑक्टोबराच्या_नोव्हेंबराच्या_डिसेंबराच्या'.split(
+            '_'
+        ),
+        isFormat: /MMMM(\s)+D[oD]?/,
+    },
+    monthsShort:
+        'जाने._फेब्रु._मार्च_एप्री._मे_जून_जुल._ऑग._सप्टें._ऑक्टो._नोव्हें._डिसें.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'आयतार_सोमार_मंगळार_बुधवार_बिरेस्तार_सुक्रार_शेनवार'.split('_'),
+    weekdaysShort: 'आयत._सोम._मंगळ._बुध._ब्रेस्त._सुक्र._शेन.'.split('_'),
+    weekdaysMin: 'आ_सो_मं_बु_ब्रे_सु_शे'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'A h:mm [वाजतां]',
+        LTS: 'A h:mm:ss [वाजतां]',
+        L: 'DD-MM-YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY A h:mm [वाजतां]',
+        LLLL: 'dddd, MMMM Do, YYYY, A h:mm [वाजतां]',
+        llll: 'ddd, D MMM YYYY, A h:mm [वाजतां]',
+    },
+    calendar: {
+        sameDay: '[आयज] LT',
+        nextDay: '[फाल्यां] LT',
+        nextWeek: '[फुडलो] dddd[,] LT',
+        lastDay: '[काल] LT',
+        lastWeek: '[फाटलो] dddd[,] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s',
+        past: '%s आदीं',
+        s: processRelativeTime,
+        ss: processRelativeTime,
+        m: processRelativeTime,
+        mm: processRelativeTime,
+        h: processRelativeTime,
+        hh: processRelativeTime,
+        d: processRelativeTime,
+        dd: processRelativeTime,
+        M: processRelativeTime,
+        MM: processRelativeTime,
+        y: processRelativeTime,
+        yy: processRelativeTime,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(वेर)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            // the ordinal 'वेर' only applies to day of the month
+            case 'D':
+                return number + 'वेर';
+            default:
+            case 'M':
+            case 'Q':
+            case 'DDD':
+            case 'd':
+            case 'w':
+            case 'W':
+                return number;
+        }
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week
+        doy: 3, // The week that contains Jan 4th is the first week of the year (7 + 0 - 4)
+    },
+    meridiemParse: /राती|सकाळीं|दनपारां|सांजे/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'राती') {
+            return hour < 4 ? hour : hour + 12;
+        } else if (meridiem === 'सकाळीं') {
+            return hour;
+        } else if (meridiem === 'दनपारां') {
+            return hour > 12 ? hour : hour + 12;
+        } else if (meridiem === 'सांजे') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'राती';
+        } else if (hour < 12) {
+            return 'सकाळीं';
+        } else if (hour < 16) {
+            return 'दनपारां';
+        } else if (hour < 20) {
+            return 'सांजे';
+        } else {
+            return 'राती';
+        }
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/gom-latn.js b/backend/node_modules/moment/dist/locale/gom-latn.js
new file mode 100644
index 0000000..d237161
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/gom-latn.js
@@ -0,0 +1,124 @@
+//! moment.js locale configuration
+//! locale : Konkani Latin script [gom-latn]
+//! author : The Discoverer : https://github.com/WikiDiscoverer
+
+import moment from '../moment';
+
+function processRelativeTime(number, withoutSuffix, key, isFuture) {
+    var format = {
+        s: ['thoddea sekondamni', 'thodde sekond'],
+        ss: [number + ' sekondamni', number + ' sekond'],
+        m: ['eka mintan', 'ek minut'],
+        mm: [number + ' mintamni', number + ' mintam'],
+        h: ['eka voran', 'ek vor'],
+        hh: [number + ' voramni', number + ' voram'],
+        d: ['eka disan', 'ek dis'],
+        dd: [number + ' disamni', number + ' dis'],
+        M: ['eka mhoinean', 'ek mhoino'],
+        MM: [number + ' mhoineamni', number + ' mhoine'],
+        y: ['eka vorsan', 'ek voros'],
+        yy: [number + ' vorsamni', number + ' vorsam'],
+    };
+    return isFuture ? format[key][0] : format[key][1];
+}
+
+export default moment.defineLocale('gom-latn', {
+    months: {
+        standalone:
+            'Janer_Febrer_Mars_Abril_Mai_Jun_Julai_Agost_Setembr_Otubr_Novembr_Dezembr'.split(
+                '_'
+            ),
+        format: 'Janerachea_Febrerachea_Marsachea_Abrilachea_Maiachea_Junachea_Julaiachea_Agostachea_Setembrachea_Otubrachea_Novembrachea_Dezembrachea'.split(
+            '_'
+        ),
+        isFormat: /MMMM(\s)+D[oD]?/,
+    },
+    monthsShort:
+        'Jan._Feb._Mars_Abr._Mai_Jun_Jul._Ago._Set._Otu._Nov._Dez.'.split('_'),
+    monthsParseExact: true,
+    weekdays: "Aitar_Somar_Mongllar_Budhvar_Birestar_Sukrar_Son'var".split('_'),
+    weekdaysShort: 'Ait._Som._Mon._Bud._Bre._Suk._Son.'.split('_'),
+    weekdaysMin: 'Ai_Sm_Mo_Bu_Br_Su_Sn'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'A h:mm [vazta]',
+        LTS: 'A h:mm:ss [vazta]',
+        L: 'DD-MM-YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY A h:mm [vazta]',
+        LLLL: 'dddd, MMMM Do, YYYY, A h:mm [vazta]',
+        llll: 'ddd, D MMM YYYY, A h:mm [vazta]',
+    },
+    calendar: {
+        sameDay: '[Aiz] LT',
+        nextDay: '[Faleam] LT',
+        nextWeek: '[Fuddlo] dddd[,] LT',
+        lastDay: '[Kal] LT',
+        lastWeek: '[Fattlo] dddd[,] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s',
+        past: '%s adim',
+        s: processRelativeTime,
+        ss: processRelativeTime,
+        m: processRelativeTime,
+        mm: processRelativeTime,
+        h: processRelativeTime,
+        hh: processRelativeTime,
+        d: processRelativeTime,
+        dd: processRelativeTime,
+        M: processRelativeTime,
+        MM: processRelativeTime,
+        y: processRelativeTime,
+        yy: processRelativeTime,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(er)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            // the ordinal 'er' only applies to day of the month
+            case 'D':
+                return number + 'er';
+            default:
+            case 'M':
+            case 'Q':
+            case 'DDD':
+            case 'd':
+            case 'w':
+            case 'W':
+                return number;
+        }
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week
+        doy: 3, // The week that contains Jan 4th is the first week of the year (7 + 0 - 4)
+    },
+    meridiemParse: /rati|sokallim|donparam|sanje/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'rati') {
+            return hour < 4 ? hour : hour + 12;
+        } else if (meridiem === 'sokallim') {
+            return hour;
+        } else if (meridiem === 'donparam') {
+            return hour > 12 ? hour : hour + 12;
+        } else if (meridiem === 'sanje') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'rati';
+        } else if (hour < 12) {
+            return 'sokallim';
+        } else if (hour < 16) {
+            return 'donparam';
+        } else if (hour < 20) {
+            return 'sanje';
+        } else {
+            return 'rati';
+        }
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/gu.js b/backend/node_modules/moment/dist/locale/gu.js
new file mode 100644
index 0000000..d432d2c
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/gu.js
@@ -0,0 +1,122 @@
+//! moment.js locale configuration
+//! locale : Gujarati [gu]
+//! author : Kaushik Thanki : https://github.com/Kaushik1987
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '૧',
+        2: '૨',
+        3: '૩',
+        4: '૪',
+        5: '૫',
+        6: '૬',
+        7: '૭',
+        8: '૮',
+        9: '૯',
+        0: '૦',
+    },
+    numberMap = {
+        '૧': '1',
+        '૨': '2',
+        '૩': '3',
+        '૪': '4',
+        '૫': '5',
+        '૬': '6',
+        '૭': '7',
+        '૮': '8',
+        '૯': '9',
+        '૦': '0',
+    };
+
+export default moment.defineLocale('gu', {
+    months: 'જાન્યુઆરી_ફેબ્રુઆરી_માર્ચ_એપ્રિલ_મે_જૂન_જુલાઈ_ઑગસ્ટ_સપ્ટેમ્બર_ઑક્ટ્બર_નવેમ્બર_ડિસેમ્બર'.split(
+        '_'
+    ),
+    monthsShort:
+        'જાન્યુ._ફેબ્રુ._માર્ચ_એપ્રિ._મે_જૂન_જુલા._ઑગ._સપ્ટે._ઑક્ટ્._નવે._ડિસે.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'રવિવાર_સોમવાર_મંગળવાર_બુધ્વાર_ગુરુવાર_શુક્રવાર_શનિવાર'.split(
+        '_'
+    ),
+    weekdaysShort: 'રવિ_સોમ_મંગળ_બુધ્_ગુરુ_શુક્ર_શનિ'.split('_'),
+    weekdaysMin: 'ર_સો_મં_બુ_ગુ_શુ_શ'.split('_'),
+    longDateFormat: {
+        LT: 'A h:mm વાગ્યે',
+        LTS: 'A h:mm:ss વાગ્યે',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY, A h:mm વાગ્યે',
+        LLLL: 'dddd, D MMMM YYYY, A h:mm વાગ્યે',
+    },
+    calendar: {
+        sameDay: '[આજ] LT',
+        nextDay: '[કાલે] LT',
+        nextWeek: 'dddd, LT',
+        lastDay: '[ગઇકાલે] LT',
+        lastWeek: '[પાછલા] dddd, LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s મા',
+        past: '%s પહેલા',
+        s: 'અમુક પળો',
+        ss: '%d સેકંડ',
+        m: 'એક મિનિટ',
+        mm: '%d મિનિટ',
+        h: 'એક કલાક',
+        hh: '%d કલાક',
+        d: 'એક દિવસ',
+        dd: '%d દિવસ',
+        M: 'એક મહિનો',
+        MM: '%d મહિનો',
+        y: 'એક વર્ષ',
+        yy: '%d વર્ષ',
+    },
+    preparse: function (string) {
+        return string.replace(/[૧૨૩૪૫૬૭૮૯૦]/g, function (match) {
+            return numberMap[match];
+        });
+    },
+    postformat: function (string) {
+        return string.replace(/\d/g, function (match) {
+            return symbolMap[match];
+        });
+    },
+    // Gujarati notation for meridiems are quite fuzzy in practice. While there exists
+    // a rigid notion of a 'Pahar' it is not used as rigidly in modern Gujarati.
+    meridiemParse: /રાત|બપોર|સવાર|સાંજ/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'રાત') {
+            return hour < 4 ? hour : hour + 12;
+        } else if (meridiem === 'સવાર') {
+            return hour;
+        } else if (meridiem === 'બપોર') {
+            return hour >= 10 ? hour : hour + 12;
+        } else if (meridiem === 'સાંજ') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'રાત';
+        } else if (hour < 10) {
+            return 'સવાર';
+        } else if (hour < 17) {
+            return 'બપોર';
+        } else if (hour < 20) {
+            return 'સાંજ';
+        } else {
+            return 'રાત';
+        }
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/he.js b/backend/node_modules/moment/dist/locale/he.js
new file mode 100644
index 0000000..08add2c
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/he.js
@@ -0,0 +1,94 @@
+//! moment.js locale configuration
+//! locale : Hebrew [he]
+//! author : Tomer Cohen : https://github.com/tomer
+//! author : Moshe Simantov : https://github.com/DevelopmentIL
+//! author : Tal Ater : https://github.com/TalAter
+
+import moment from '../moment';
+
+export default moment.defineLocale('he', {
+    months: 'ינואר_פברואר_מרץ_אפריל_מאי_יוני_יולי_אוגוסט_ספטמבר_אוקטובר_נובמבר_דצמבר'.split(
+        '_'
+    ),
+    monthsShort:
+        'ינו׳_פבר׳_מרץ_אפר׳_מאי_יוני_יולי_אוג׳_ספט׳_אוק׳_נוב׳_דצמ׳'.split('_'),
+    weekdays: 'ראשון_שני_שלישי_רביעי_חמישי_שישי_שבת'.split('_'),
+    weekdaysShort: 'א׳_ב׳_ג׳_ד׳_ה׳_ו׳_ש׳'.split('_'),
+    weekdaysMin: 'א_ב_ג_ד_ה_ו_ש'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D [ב]MMMM YYYY',
+        LLL: 'D [ב]MMMM YYYY HH:mm',
+        LLLL: 'dddd, D [ב]MMMM YYYY HH:mm',
+        l: 'D/M/YYYY',
+        ll: 'D MMM YYYY',
+        lll: 'D MMM YYYY HH:mm',
+        llll: 'ddd, D MMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[היום ב־]LT',
+        nextDay: '[מחר ב־]LT',
+        nextWeek: 'dddd [בשעה] LT',
+        lastDay: '[אתמול ב־]LT',
+        lastWeek: '[ביום] dddd [האחרון בשעה] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'בעוד %s',
+        past: 'לפני %s',
+        s: 'מספר שניות',
+        ss: '%d שניות',
+        m: 'דקה',
+        mm: '%d דקות',
+        h: 'שעה',
+        hh: function (number) {
+            if (number === 2) {
+                return 'שעתיים';
+            }
+            return number + ' שעות';
+        },
+        d: 'יום',
+        dd: function (number) {
+            if (number === 2) {
+                return 'יומיים';
+            }
+            return number + ' ימים';
+        },
+        M: 'חודש',
+        MM: function (number) {
+            if (number === 2) {
+                return 'חודשיים';
+            }
+            return number + ' חודשים';
+        },
+        y: 'שנה',
+        yy: function (number) {
+            if (number === 2) {
+                return 'שנתיים';
+            } else if (number % 10 === 0 && number !== 10) {
+                return number + ' שנה';
+            }
+            return number + ' שנים';
+        },
+    },
+    meridiemParse:
+        /אחה"צ|לפנה"צ|אחרי הצהריים|לפני הצהריים|לפנות בוקר|בבוקר|בערב/i,
+    isPM: function (input) {
+        return /^(אחה"צ|אחרי הצהריים|בערב)$/.test(input);
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 5) {
+            return 'לפנות בוקר';
+        } else if (hour < 10) {
+            return 'בבוקר';
+        } else if (hour < 12) {
+            return isLower ? 'לפנה"צ' : 'לפני הצהריים';
+        } else if (hour < 18) {
+            return isLower ? 'אחה"צ' : 'אחרי הצהריים';
+        } else {
+            return 'בערב';
+        }
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/hi.js b/backend/node_modules/moment/dist/locale/hi.js
new file mode 100644
index 0000000..2e3a973
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/hi.js
@@ -0,0 +1,168 @@
+//! moment.js locale configuration
+//! locale : Hindi [hi]
+//! author : Mayank Singhal : https://github.com/mayanksinghal
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '१',
+        2: '२',
+        3: '३',
+        4: '४',
+        5: '५',
+        6: '६',
+        7: '७',
+        8: '८',
+        9: '९',
+        0: '०',
+    },
+    numberMap = {
+        '१': '1',
+        '२': '2',
+        '३': '3',
+        '४': '4',
+        '५': '5',
+        '६': '6',
+        '७': '7',
+        '८': '8',
+        '९': '9',
+        '०': '0',
+    },
+    monthsParse = [
+        /^जन/i,
+        /^फ़र|फर/i,
+        /^मार्च/i,
+        /^अप्रै/i,
+        /^मई/i,
+        /^जून/i,
+        /^जुल/i,
+        /^अग/i,
+        /^सितं|सित/i,
+        /^अक्टू/i,
+        /^नव|नवं/i,
+        /^दिसं|दिस/i,
+    ],
+    shortMonthsParse = [
+        /^जन/i,
+        /^फ़र/i,
+        /^मार्च/i,
+        /^अप्रै/i,
+        /^मई/i,
+        /^जून/i,
+        /^जुल/i,
+        /^अग/i,
+        /^सित/i,
+        /^अक्टू/i,
+        /^नव/i,
+        /^दिस/i,
+    ];
+
+export default moment.defineLocale('hi', {
+    months: {
+        format: 'जनवरी_फ़रवरी_मार्च_अप्रैल_मई_जून_जुलाई_अगस्त_सितम्बर_अक्टूबर_नवम्बर_दिसम्बर'.split(
+            '_'
+        ),
+        standalone:
+            'जनवरी_फरवरी_मार्च_अप्रैल_मई_जून_जुलाई_अगस्त_सितंबर_अक्टूबर_नवंबर_दिसंबर'.split(
+                '_'
+            ),
+    },
+    monthsShort:
+        'जन._फ़र._मार्च_अप्रै._मई_जून_जुल._अग._सित._अक्टू._नव._दिस.'.split('_'),
+    weekdays: 'रविवार_सोमवार_मंगलवार_बुधवार_गुरूवार_शुक्रवार_शनिवार'.split('_'),
+    weekdaysShort: 'रवि_सोम_मंगल_बुध_गुरू_शुक्र_शनि'.split('_'),
+    weekdaysMin: 'र_सो_मं_बु_गु_शु_श'.split('_'),
+    longDateFormat: {
+        LT: 'A h:mm बजे',
+        LTS: 'A h:mm:ss बजे',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY, A h:mm बजे',
+        LLLL: 'dddd, D MMMM YYYY, A h:mm बजे',
+    },
+
+    monthsParse: monthsParse,
+    longMonthsParse: monthsParse,
+    shortMonthsParse: shortMonthsParse,
+
+    monthsRegex:
+        /^(जनवरी|जन\.?|फ़रवरी|फरवरी|फ़र\.?|मार्च?|अप्रैल|अप्रै\.?|मई?|जून?|जुलाई|जुल\.?|अगस्त|अग\.?|सितम्बर|सितंबर|सित\.?|अक्टूबर|अक्टू\.?|नवम्बर|नवंबर|नव\.?|दिसम्बर|दिसंबर|दिस\.?)/i,
+
+    monthsShortRegex:
+        /^(जनवरी|जन\.?|फ़रवरी|फरवरी|फ़र\.?|मार्च?|अप्रैल|अप्रै\.?|मई?|जून?|जुलाई|जुल\.?|अगस्त|अग\.?|सितम्बर|सितंबर|सित\.?|अक्टूबर|अक्टू\.?|नवम्बर|नवंबर|नव\.?|दिसम्बर|दिसंबर|दिस\.?)/i,
+
+    monthsStrictRegex:
+        /^(जनवरी?|फ़रवरी|फरवरी?|मार्च?|अप्रैल?|मई?|जून?|जुलाई?|अगस्त?|सितम्बर|सितंबर|सित?\.?|अक्टूबर|अक्टू\.?|नवम्बर|नवंबर?|दिसम्बर|दिसंबर?)/i,
+
+    monthsShortStrictRegex:
+        /^(जन\.?|फ़र\.?|मार्च?|अप्रै\.?|मई?|जून?|जुल\.?|अग\.?|सित\.?|अक्टू\.?|नव\.?|दिस\.?)/i,
+
+    calendar: {
+        sameDay: '[आज] LT',
+        nextDay: '[कल] LT',
+        nextWeek: 'dddd, LT',
+        lastDay: '[कल] LT',
+        lastWeek: '[पिछले] dddd, LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s में',
+        past: '%s पहले',
+        s: 'कुछ ही क्षण',
+        ss: '%d सेकंड',
+        m: 'एक मिनट',
+        mm: '%d मिनट',
+        h: 'एक घंटा',
+        hh: '%d घंटे',
+        d: 'एक दिन',
+        dd: '%d दिन',
+        M: 'एक महीने',
+        MM: '%d महीने',
+        y: 'एक वर्ष',
+        yy: '%d वर्ष',
+    },
+    preparse: function (string) {
+        return string.replace(/[१२३४५६७८९०]/g, function (match) {
+            return numberMap[match];
+        });
+    },
+    postformat: function (string) {
+        return string.replace(/\d/g, function (match) {
+            return symbolMap[match];
+        });
+    },
+    // Hindi notation for meridiems are quite fuzzy in practice. While there exists
+    // a rigid notion of a 'Pahar' it is not used as rigidly in modern Hindi.
+    meridiemParse: /रात|सुबह|दोपहर|शाम/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'रात') {
+            return hour < 4 ? hour : hour + 12;
+        } else if (meridiem === 'सुबह') {
+            return hour;
+        } else if (meridiem === 'दोपहर') {
+            return hour >= 10 ? hour : hour + 12;
+        } else if (meridiem === 'शाम') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'रात';
+        } else if (hour < 10) {
+            return 'सुबह';
+        } else if (hour < 17) {
+            return 'दोपहर';
+        } else if (hour < 20) {
+            return 'शाम';
+        } else {
+            return 'रात';
+        }
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/hr.js b/backend/node_modules/moment/dist/locale/hr.js
new file mode 100644
index 0000000..48c1e9e
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/hr.js
@@ -0,0 +1,156 @@
+//! moment.js locale configuration
+//! locale : Croatian [hr]
+//! author : Bojan Marković : https://github.com/bmarkovic
+
+import moment from '../moment';
+
+function translate(number, withoutSuffix, key) {
+    var result = number + ' ';
+    switch (key) {
+        case 'ss':
+            if (number === 1) {
+                result += 'sekunda';
+            } else if (number === 2 || number === 3 || number === 4) {
+                result += 'sekunde';
+            } else {
+                result += 'sekundi';
+            }
+            return result;
+        case 'm':
+            return withoutSuffix ? 'jedna minuta' : 'jedne minute';
+        case 'mm':
+            if (number === 1) {
+                result += 'minuta';
+            } else if (number === 2 || number === 3 || number === 4) {
+                result += 'minute';
+            } else {
+                result += 'minuta';
+            }
+            return result;
+        case 'h':
+            return withoutSuffix ? 'jedan sat' : 'jednog sata';
+        case 'hh':
+            if (number === 1) {
+                result += 'sat';
+            } else if (number === 2 || number === 3 || number === 4) {
+                result += 'sata';
+            } else {
+                result += 'sati';
+            }
+            return result;
+        case 'dd':
+            if (number === 1) {
+                result += 'dan';
+            } else {
+                result += 'dana';
+            }
+            return result;
+        case 'MM':
+            if (number === 1) {
+                result += 'mjesec';
+            } else if (number === 2 || number === 3 || number === 4) {
+                result += 'mjeseca';
+            } else {
+                result += 'mjeseci';
+            }
+            return result;
+        case 'yy':
+            if (number === 1) {
+                result += 'godina';
+            } else if (number === 2 || number === 3 || number === 4) {
+                result += 'godine';
+            } else {
+                result += 'godina';
+            }
+            return result;
+    }
+}
+
+export default moment.defineLocale('hr', {
+    months: {
+        format: 'siječnja_veljače_ožujka_travnja_svibnja_lipnja_srpnja_kolovoza_rujna_listopada_studenoga_prosinca'.split(
+            '_'
+        ),
+        standalone:
+            'siječanj_veljača_ožujak_travanj_svibanj_lipanj_srpanj_kolovoz_rujan_listopad_studeni_prosinac'.split(
+                '_'
+            ),
+    },
+    monthsShort:
+        'sij._velj._ožu._tra._svi._lip._srp._kol._ruj._lis._stu._pro.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'nedjelja_ponedjeljak_utorak_srijeda_četvrtak_petak_subota'.split(
+        '_'
+    ),
+    weekdaysShort: 'ned._pon._uto._sri._čet._pet._sub.'.split('_'),
+    weekdaysMin: 'ne_po_ut_sr_če_pe_su'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'Do MMMM YYYY',
+        LLL: 'Do MMMM YYYY H:mm',
+        LLLL: 'dddd, Do MMMM YYYY H:mm',
+    },
+    calendar: {
+        sameDay: '[danas u] LT',
+        nextDay: '[sutra u] LT',
+        nextWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[u] [nedjelju] [u] LT';
+                case 3:
+                    return '[u] [srijedu] [u] LT';
+                case 6:
+                    return '[u] [subotu] [u] LT';
+                case 1:
+                case 2:
+                case 4:
+                case 5:
+                    return '[u] dddd [u] LT';
+            }
+        },
+        lastDay: '[jučer u] LT',
+        lastWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[prošlu] [nedjelju] [u] LT';
+                case 3:
+                    return '[prošlu] [srijedu] [u] LT';
+                case 6:
+                    return '[prošle] [subote] [u] LT';
+                case 1:
+                case 2:
+                case 4:
+                case 5:
+                    return '[prošli] dddd [u] LT';
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'za %s',
+        past: 'prije %s',
+        s: 'par sekundi',
+        ss: translate,
+        m: translate,
+        mm: translate,
+        h: translate,
+        hh: translate,
+        d: 'dan',
+        dd: translate,
+        M: 'mjesec',
+        MM: translate,
+        y: 'godinu',
+        yy: translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/hu.js b/backend/node_modules/moment/dist/locale/hu.js
new file mode 100644
index 0000000..f2f5981
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/hu.js
@@ -0,0 +1,118 @@
+//! moment.js locale configuration
+//! locale : Hungarian [hu]
+//! author : Adam Brunner : https://github.com/adambrunner
+//! author : Peter Viszt  : https://github.com/passatgt
+
+import moment from '../moment';
+
+var weekEndings =
+    'vasárnap hétfőn kedden szerdán csütörtökön pénteken szombaton'.split(' ');
+function translate(number, withoutSuffix, key, isFuture) {
+    var num = number;
+    switch (key) {
+        case 's':
+            return isFuture || withoutSuffix
+                ? 'néhány másodperc'
+                : 'néhány másodperce';
+        case 'ss':
+            return num + (isFuture || withoutSuffix)
+                ? ' másodperc'
+                : ' másodperce';
+        case 'm':
+            return 'egy' + (isFuture || withoutSuffix ? ' perc' : ' perce');
+        case 'mm':
+            return num + (isFuture || withoutSuffix ? ' perc' : ' perce');
+        case 'h':
+            return 'egy' + (isFuture || withoutSuffix ? ' óra' : ' órája');
+        case 'hh':
+            return num + (isFuture || withoutSuffix ? ' óra' : ' órája');
+        case 'd':
+            return 'egy' + (isFuture || withoutSuffix ? ' nap' : ' napja');
+        case 'dd':
+            return num + (isFuture || withoutSuffix ? ' nap' : ' napja');
+        case 'M':
+            return 'egy' + (isFuture || withoutSuffix ? ' hónap' : ' hónapja');
+        case 'MM':
+            return num + (isFuture || withoutSuffix ? ' hónap' : ' hónapja');
+        case 'y':
+            return 'egy' + (isFuture || withoutSuffix ? ' év' : ' éve');
+        case 'yy':
+            return num + (isFuture || withoutSuffix ? ' év' : ' éve');
+    }
+    return '';
+}
+function week(isFuture) {
+    return (
+        (isFuture ? '' : '[múlt] ') +
+        '[' +
+        weekEndings[this.day()] +
+        '] LT[-kor]'
+    );
+}
+
+export default moment.defineLocale('hu', {
+    months: 'január_február_március_április_május_június_július_augusztus_szeptember_október_november_december'.split(
+        '_'
+    ),
+    monthsShort:
+        'jan._feb._márc._ápr._máj._jún._júl._aug._szept._okt._nov._dec.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'vasárnap_hétfő_kedd_szerda_csütörtök_péntek_szombat'.split('_'),
+    weekdaysShort: 'vas_hét_kedd_sze_csüt_pén_szo'.split('_'),
+    weekdaysMin: 'v_h_k_sze_cs_p_szo'.split('_'),
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'YYYY.MM.DD.',
+        LL: 'YYYY. MMMM D.',
+        LLL: 'YYYY. MMMM D. H:mm',
+        LLLL: 'YYYY. MMMM D., dddd H:mm',
+    },
+    meridiemParse: /de|du/i,
+    isPM: function (input) {
+        return input.charAt(1).toLowerCase() === 'u';
+    },
+    meridiem: function (hours, minutes, isLower) {
+        if (hours < 12) {
+            return isLower === true ? 'de' : 'DE';
+        } else {
+            return isLower === true ? 'du' : 'DU';
+        }
+    },
+    calendar: {
+        sameDay: '[ma] LT[-kor]',
+        nextDay: '[holnap] LT[-kor]',
+        nextWeek: function () {
+            return week.call(this, true);
+        },
+        lastDay: '[tegnap] LT[-kor]',
+        lastWeek: function () {
+            return week.call(this, false);
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s múlva',
+        past: '%s',
+        s: translate,
+        ss: translate,
+        m: translate,
+        mm: translate,
+        h: translate,
+        hh: translate,
+        d: translate,
+        dd: translate,
+        M: translate,
+        MM: translate,
+        y: translate,
+        yy: translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/hy-am.js b/backend/node_modules/moment/dist/locale/hy-am.js
new file mode 100644
index 0000000..283cfbd
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/hy-am.js
@@ -0,0 +1,94 @@
+//! moment.js locale configuration
+//! locale : Armenian [hy-am]
+//! author : Armendarabyan : https://github.com/armendarabyan
+
+import moment from '../moment';
+
+export default moment.defineLocale('hy-am', {
+    months: {
+        format: 'հունվարի_փետրվարի_մարտի_ապրիլի_մայիսի_հունիսի_հուլիսի_օգոստոսի_սեպտեմբերի_հոկտեմբերի_նոյեմբերի_դեկտեմբերի'.split(
+            '_'
+        ),
+        standalone:
+            'հունվար_փետրվար_մարտ_ապրիլ_մայիս_հունիս_հուլիս_օգոստոս_սեպտեմբեր_հոկտեմբեր_նոյեմբեր_դեկտեմբեր'.split(
+                '_'
+            ),
+    },
+    monthsShort: 'հնվ_փտր_մրտ_ապր_մյս_հնս_հլս_օգս_սպտ_հկտ_նմբ_դկտ'.split('_'),
+    weekdays:
+        'կիրակի_երկուշաբթի_երեքշաբթի_չորեքշաբթի_հինգշաբթի_ուրբաթ_շաբաթ'.split(
+            '_'
+        ),
+    weekdaysShort: 'կրկ_երկ_երք_չրք_հնգ_ուրբ_շբթ'.split('_'),
+    weekdaysMin: 'կրկ_երկ_երք_չրք_հնգ_ուրբ_շբթ'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY թ.',
+        LLL: 'D MMMM YYYY թ., HH:mm',
+        LLLL: 'dddd, D MMMM YYYY թ., HH:mm',
+    },
+    calendar: {
+        sameDay: '[այսօր] LT',
+        nextDay: '[վաղը] LT',
+        lastDay: '[երեկ] LT',
+        nextWeek: function () {
+            return 'dddd [օրը ժամը] LT';
+        },
+        lastWeek: function () {
+            return '[անցած] dddd [օրը ժամը] LT';
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s հետո',
+        past: '%s առաջ',
+        s: 'մի քանի վայրկյան',
+        ss: '%d վայրկյան',
+        m: 'րոպե',
+        mm: '%d րոպե',
+        h: 'ժամ',
+        hh: '%d ժամ',
+        d: 'օր',
+        dd: '%d օր',
+        M: 'ամիս',
+        MM: '%d ամիս',
+        y: 'տարի',
+        yy: '%d տարի',
+    },
+    meridiemParse: /գիշերվա|առավոտվա|ցերեկվա|երեկոյան/,
+    isPM: function (input) {
+        return /^(ցերեկվա|երեկոյան)$/.test(input);
+    },
+    meridiem: function (hour) {
+        if (hour < 4) {
+            return 'գիշերվա';
+        } else if (hour < 12) {
+            return 'առավոտվա';
+        } else if (hour < 17) {
+            return 'ցերեկվա';
+        } else {
+            return 'երեկոյան';
+        }
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}|\d{1,2}-(ին|րդ)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'DDD':
+            case 'w':
+            case 'W':
+            case 'DDDo':
+                if (number === 1) {
+                    return number + '-ին';
+                }
+                return number + '-րդ';
+            default:
+                return number;
+        }
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/id.js b/backend/node_modules/moment/dist/locale/id.js
new file mode 100644
index 0000000..3260e1c
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/id.js
@@ -0,0 +1,76 @@
+//! moment.js locale configuration
+//! locale : Indonesian [id]
+//! author : Mohammad Satrio Utomo : https://github.com/tyok
+//! reference: http://id.wikisource.org/wiki/Pedoman_Umum_Ejaan_Bahasa_Indonesia_yang_Disempurnakan
+
+import moment from '../moment';
+
+export default moment.defineLocale('id', {
+    months: 'Januari_Februari_Maret_April_Mei_Juni_Juli_Agustus_September_Oktober_November_Desember'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mar_Apr_Mei_Jun_Jul_Agt_Sep_Okt_Nov_Des'.split('_'),
+    weekdays: 'Minggu_Senin_Selasa_Rabu_Kamis_Jumat_Sabtu'.split('_'),
+    weekdaysShort: 'Min_Sen_Sel_Rab_Kam_Jum_Sab'.split('_'),
+    weekdaysMin: 'Mg_Sn_Sl_Rb_Km_Jm_Sb'.split('_'),
+    longDateFormat: {
+        LT: 'HH.mm',
+        LTS: 'HH.mm.ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY [pukul] HH.mm',
+        LLLL: 'dddd, D MMMM YYYY [pukul] HH.mm',
+    },
+    meridiemParse: /pagi|siang|sore|malam/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'pagi') {
+            return hour;
+        } else if (meridiem === 'siang') {
+            return hour >= 11 ? hour : hour + 12;
+        } else if (meridiem === 'sore' || meridiem === 'malam') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hours, minutes, isLower) {
+        if (hours < 11) {
+            return 'pagi';
+        } else if (hours < 15) {
+            return 'siang';
+        } else if (hours < 19) {
+            return 'sore';
+        } else {
+            return 'malam';
+        }
+    },
+    calendar: {
+        sameDay: '[Hari ini pukul] LT',
+        nextDay: '[Besok pukul] LT',
+        nextWeek: 'dddd [pukul] LT',
+        lastDay: '[Kemarin pukul] LT',
+        lastWeek: 'dddd [lalu pukul] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'dalam %s',
+        past: '%s yang lalu',
+        s: 'beberapa detik',
+        ss: '%d detik',
+        m: 'semenit',
+        mm: '%d menit',
+        h: 'sejam',
+        hh: '%d jam',
+        d: 'sehari',
+        dd: '%d hari',
+        M: 'sebulan',
+        MM: '%d bulan',
+        y: 'setahun',
+        yy: '%d tahun',
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/is.js b/backend/node_modules/moment/dist/locale/is.js
new file mode 100644
index 0000000..d2c6f47
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/is.js
@@ -0,0 +1,140 @@
+//! moment.js locale configuration
+//! locale : Icelandic [is]
+//! author : Hinrik Örn Sigurðsson : https://github.com/hinrik
+
+import moment from '../moment';
+
+function plural(n) {
+    if (n % 100 === 11) {
+        return true;
+    } else if (n % 10 === 1) {
+        return false;
+    }
+    return true;
+}
+function translate(number, withoutSuffix, key, isFuture) {
+    var result = number + ' ';
+    switch (key) {
+        case 's':
+            return withoutSuffix || isFuture
+                ? 'nokkrar sekúndur'
+                : 'nokkrum sekúndum';
+        case 'ss':
+            if (plural(number)) {
+                return (
+                    result +
+                    (withoutSuffix || isFuture ? 'sekúndur' : 'sekúndum')
+                );
+            }
+            return result + 'sekúnda';
+        case 'm':
+            return withoutSuffix ? 'mínúta' : 'mínútu';
+        case 'mm':
+            if (plural(number)) {
+                return (
+                    result + (withoutSuffix || isFuture ? 'mínútur' : 'mínútum')
+                );
+            } else if (withoutSuffix) {
+                return result + 'mínúta';
+            }
+            return result + 'mínútu';
+        case 'hh':
+            if (plural(number)) {
+                return (
+                    result +
+                    (withoutSuffix || isFuture
+                        ? 'klukkustundir'
+                        : 'klukkustundum')
+                );
+            }
+            return result + 'klukkustund';
+        case 'd':
+            if (withoutSuffix) {
+                return 'dagur';
+            }
+            return isFuture ? 'dag' : 'degi';
+        case 'dd':
+            if (plural(number)) {
+                if (withoutSuffix) {
+                    return result + 'dagar';
+                }
+                return result + (isFuture ? 'daga' : 'dögum');
+            } else if (withoutSuffix) {
+                return result + 'dagur';
+            }
+            return result + (isFuture ? 'dag' : 'degi');
+        case 'M':
+            if (withoutSuffix) {
+                return 'mánuður';
+            }
+            return isFuture ? 'mánuð' : 'mánuði';
+        case 'MM':
+            if (plural(number)) {
+                if (withoutSuffix) {
+                    return result + 'mánuðir';
+                }
+                return result + (isFuture ? 'mánuði' : 'mánuðum');
+            } else if (withoutSuffix) {
+                return result + 'mánuður';
+            }
+            return result + (isFuture ? 'mánuð' : 'mánuði');
+        case 'y':
+            return withoutSuffix || isFuture ? 'ár' : 'ári';
+        case 'yy':
+            if (plural(number)) {
+                return result + (withoutSuffix || isFuture ? 'ár' : 'árum');
+            }
+            return result + (withoutSuffix || isFuture ? 'ár' : 'ári');
+    }
+}
+
+export default moment.defineLocale('is', {
+    months: 'janúar_febrúar_mars_apríl_maí_júní_júlí_ágúst_september_október_nóvember_desember'.split(
+        '_'
+    ),
+    monthsShort: 'jan_feb_mar_apr_maí_jún_júl_ágú_sep_okt_nóv_des'.split('_'),
+    weekdays:
+        'sunnudagur_mánudagur_þriðjudagur_miðvikudagur_fimmtudagur_föstudagur_laugardagur'.split(
+            '_'
+        ),
+    weekdaysShort: 'sun_mán_þri_mið_fim_fös_lau'.split('_'),
+    weekdaysMin: 'Su_Má_Þr_Mi_Fi_Fö_La'.split('_'),
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY [kl.] H:mm',
+        LLLL: 'dddd, D. MMMM YYYY [kl.] H:mm',
+    },
+    calendar: {
+        sameDay: '[í dag kl.] LT',
+        nextDay: '[á morgun kl.] LT',
+        nextWeek: 'dddd [kl.] LT',
+        lastDay: '[í gær kl.] LT',
+        lastWeek: '[síðasta] dddd [kl.] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'eftir %s',
+        past: 'fyrir %s síðan',
+        s: translate,
+        ss: translate,
+        m: translate,
+        mm: translate,
+        h: 'klukkustund',
+        hh: translate,
+        d: translate,
+        dd: translate,
+        M: translate,
+        MM: translate,
+        y: translate,
+        yy: translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/it-ch.js b/backend/node_modules/moment/dist/locale/it-ch.js
new file mode 100644
index 0000000..3437453
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/it-ch.js
@@ -0,0 +1,64 @@
+//! moment.js locale configuration
+//! locale : Italian (Switzerland) [it-ch]
+//! author : xfh : https://github.com/xfh
+
+import moment from '../moment';
+
+export default moment.defineLocale('it-ch', {
+    months: 'gennaio_febbraio_marzo_aprile_maggio_giugno_luglio_agosto_settembre_ottobre_novembre_dicembre'.split(
+        '_'
+    ),
+    monthsShort: 'gen_feb_mar_apr_mag_giu_lug_ago_set_ott_nov_dic'.split('_'),
+    weekdays: 'domenica_lunedì_martedì_mercoledì_giovedì_venerdì_sabato'.split(
+        '_'
+    ),
+    weekdaysShort: 'dom_lun_mar_mer_gio_ven_sab'.split('_'),
+    weekdaysMin: 'do_lu_ma_me_gi_ve_sa'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Oggi alle] LT',
+        nextDay: '[Domani alle] LT',
+        nextWeek: 'dddd [alle] LT',
+        lastDay: '[Ieri alle] LT',
+        lastWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[la scorsa] dddd [alle] LT';
+                default:
+                    return '[lo scorso] dddd [alle] LT';
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: function (s) {
+            return (/^[0-9].+$/.test(s) ? 'tra' : 'in') + ' ' + s;
+        },
+        past: '%s fa',
+        s: 'alcuni secondi',
+        ss: '%d secondi',
+        m: 'un minuto',
+        mm: '%d minuti',
+        h: "un'ora",
+        hh: '%d ore',
+        d: 'un giorno',
+        dd: '%d giorni',
+        M: 'un mese',
+        MM: '%d mesi',
+        y: 'un anno',
+        yy: '%d anni',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}º/,
+    ordinal: '%dº',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/it.js b/backend/node_modules/moment/dist/locale/it.js
new file mode 100644
index 0000000..0aa5721
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/it.js
@@ -0,0 +1,106 @@
+//! moment.js locale configuration
+//! locale : Italian [it]
+//! author : Lorenzo : https://github.com/aliem
+//! author: Mattia Larentis: https://github.com/nostalgiaz
+//! author: Marco : https://github.com/Manfre98
+
+import moment from '../moment';
+
+export default moment.defineLocale('it', {
+    months: 'gennaio_febbraio_marzo_aprile_maggio_giugno_luglio_agosto_settembre_ottobre_novembre_dicembre'.split(
+        '_'
+    ),
+    monthsShort: 'gen_feb_mar_apr_mag_giu_lug_ago_set_ott_nov_dic'.split('_'),
+    weekdays: 'domenica_lunedì_martedì_mercoledì_giovedì_venerdì_sabato'.split(
+        '_'
+    ),
+    weekdaysShort: 'dom_lun_mar_mer_gio_ven_sab'.split('_'),
+    weekdaysMin: 'do_lu_ma_me_gi_ve_sa'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: function () {
+            return (
+                '[Oggi a' +
+                (this.hours() > 1 ? 'lle ' : this.hours() === 0 ? ' ' : "ll'") +
+                ']LT'
+            );
+        },
+        nextDay: function () {
+            return (
+                '[Domani a' +
+                (this.hours() > 1 ? 'lle ' : this.hours() === 0 ? ' ' : "ll'") +
+                ']LT'
+            );
+        },
+        nextWeek: function () {
+            return (
+                'dddd [a' +
+                (this.hours() > 1 ? 'lle ' : this.hours() === 0 ? ' ' : "ll'") +
+                ']LT'
+            );
+        },
+        lastDay: function () {
+            return (
+                '[Ieri a' +
+                (this.hours() > 1 ? 'lle ' : this.hours() === 0 ? ' ' : "ll'") +
+                ']LT'
+            );
+        },
+        lastWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return (
+                        '[La scorsa] dddd [a' +
+                        (this.hours() > 1
+                            ? 'lle '
+                            : this.hours() === 0
+                              ? ' '
+                              : "ll'") +
+                        ']LT'
+                    );
+                default:
+                    return (
+                        '[Lo scorso] dddd [a' +
+                        (this.hours() > 1
+                            ? 'lle '
+                            : this.hours() === 0
+                              ? ' '
+                              : "ll'") +
+                        ']LT'
+                    );
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'tra %s',
+        past: '%s fa',
+        s: 'alcuni secondi',
+        ss: '%d secondi',
+        m: 'un minuto',
+        mm: '%d minuti',
+        h: "un'ora",
+        hh: '%d ore',
+        d: 'un giorno',
+        dd: '%d giorni',
+        w: 'una settimana',
+        ww: '%d settimane',
+        M: 'un mese',
+        MM: '%d mesi',
+        y: 'un anno',
+        yy: '%d anni',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}º/,
+    ordinal: '%dº',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ja.js b/backend/node_modules/moment/dist/locale/ja.js
new file mode 100644
index 0000000..abe921a
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ja.js
@@ -0,0 +1,148 @@
+//! moment.js locale configuration
+//! locale : Japanese [ja]
+//! author : LI Long : https://github.com/baryon
+
+import moment from '../moment';
+
+export default moment.defineLocale('ja', {
+    eras: [
+        {
+            since: '2019-05-01',
+            offset: 1,
+            name: '令和',
+            narrow: '㋿',
+            abbr: 'R',
+        },
+        {
+            since: '1989-01-08',
+            until: '2019-04-30',
+            offset: 1,
+            name: '平成',
+            narrow: '㍻',
+            abbr: 'H',
+        },
+        {
+            since: '1926-12-25',
+            until: '1989-01-07',
+            offset: 1,
+            name: '昭和',
+            narrow: '㍼',
+            abbr: 'S',
+        },
+        {
+            since: '1912-07-30',
+            until: '1926-12-24',
+            offset: 1,
+            name: '大正',
+            narrow: '㍽',
+            abbr: 'T',
+        },
+        {
+            since: '1873-01-01',
+            until: '1912-07-29',
+            offset: 6,
+            name: '明治',
+            narrow: '㍾',
+            abbr: 'M',
+        },
+        {
+            since: '0001-01-01',
+            until: '1873-12-31',
+            offset: 1,
+            name: '西暦',
+            narrow: 'AD',
+            abbr: 'AD',
+        },
+        {
+            since: '0000-12-31',
+            until: -Infinity,
+            offset: 1,
+            name: '紀元前',
+            narrow: 'BC',
+            abbr: 'BC',
+        },
+    ],
+    eraYearOrdinalRegex: /(元|\d+)年/,
+    eraYearOrdinalParse: function (input, match) {
+        return match[1] === '元' ? 1 : parseInt(match[1] || input, 10);
+    },
+    months: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split('_'),
+    monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+        '_'
+    ),
+    weekdays: '日曜日_月曜日_火曜日_水曜日_木曜日_金曜日_土曜日'.split('_'),
+    weekdaysShort: '日_月_火_水_木_金_土'.split('_'),
+    weekdaysMin: '日_月_火_水_木_金_土'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'YYYY/MM/DD',
+        LL: 'YYYY年M月D日',
+        LLL: 'YYYY年M月D日 HH:mm',
+        LLLL: 'YYYY年M月D日 dddd HH:mm',
+        l: 'YYYY/MM/DD',
+        ll: 'YYYY年M月D日',
+        lll: 'YYYY年M月D日 HH:mm',
+        llll: 'YYYY年M月D日(ddd) HH:mm',
+    },
+    meridiemParse: /午前|午後/i,
+    isPM: function (input) {
+        return input === '午後';
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return '午前';
+        } else {
+            return '午後';
+        }
+    },
+    calendar: {
+        sameDay: '[今日] LT',
+        nextDay: '[明日] LT',
+        nextWeek: function (now) {
+            if (now.week() !== this.week()) {
+                return '[来週]dddd LT';
+            } else {
+                return 'dddd LT';
+            }
+        },
+        lastDay: '[昨日] LT',
+        lastWeek: function (now) {
+            if (this.week() !== now.week()) {
+                return '[先週]dddd LT';
+            } else {
+                return 'dddd LT';
+            }
+        },
+        sameElse: 'L',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}日/,
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'y':
+                return number === 1 ? '元年' : number + '年';
+            case 'd':
+            case 'D':
+            case 'DDD':
+                return number + '日';
+            default:
+                return number;
+        }
+    },
+    relativeTime: {
+        future: '%s後',
+        past: '%s前',
+        s: '数秒',
+        ss: '%d秒',
+        m: '1分',
+        mm: '%d分',
+        h: '1時間',
+        hh: '%d時間',
+        d: '1日',
+        dd: '%d日',
+        M: '1ヶ月',
+        MM: '%dヶ月',
+        y: '1年',
+        yy: '%d年',
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/jv.js b/backend/node_modules/moment/dist/locale/jv.js
new file mode 100644
index 0000000..b52f48d
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/jv.js
@@ -0,0 +1,76 @@
+//! moment.js locale configuration
+//! locale : Javanese [jv]
+//! author : Rony Lantip : https://github.com/lantip
+//! reference: http://jv.wikipedia.org/wiki/Basa_Jawa
+
+import moment from '../moment';
+
+export default moment.defineLocale('jv', {
+    months: 'Januari_Februari_Maret_April_Mei_Juni_Juli_Agustus_September_Oktober_Nopember_Desember'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mar_Apr_Mei_Jun_Jul_Ags_Sep_Okt_Nop_Des'.split('_'),
+    weekdays: 'Minggu_Senen_Seloso_Rebu_Kemis_Jemuwah_Septu'.split('_'),
+    weekdaysShort: 'Min_Sen_Sel_Reb_Kem_Jem_Sep'.split('_'),
+    weekdaysMin: 'Mg_Sn_Sl_Rb_Km_Jm_Sp'.split('_'),
+    longDateFormat: {
+        LT: 'HH.mm',
+        LTS: 'HH.mm.ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY [pukul] HH.mm',
+        LLLL: 'dddd, D MMMM YYYY [pukul] HH.mm',
+    },
+    meridiemParse: /enjing|siyang|sonten|ndalu/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'enjing') {
+            return hour;
+        } else if (meridiem === 'siyang') {
+            return hour >= 11 ? hour : hour + 12;
+        } else if (meridiem === 'sonten' || meridiem === 'ndalu') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hours, minutes, isLower) {
+        if (hours < 11) {
+            return 'enjing';
+        } else if (hours < 15) {
+            return 'siyang';
+        } else if (hours < 19) {
+            return 'sonten';
+        } else {
+            return 'ndalu';
+        }
+    },
+    calendar: {
+        sameDay: '[Dinten puniko pukul] LT',
+        nextDay: '[Mbenjang pukul] LT',
+        nextWeek: 'dddd [pukul] LT',
+        lastDay: '[Kala wingi pukul] LT',
+        lastWeek: 'dddd [kepengker pukul] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'wonten ing %s',
+        past: '%s ingkang kepengker',
+        s: 'sawetawis detik',
+        ss: '%d detik',
+        m: 'setunggal menit',
+        mm: '%d menit',
+        h: 'setunggal jam',
+        hh: '%d jam',
+        d: 'sedinten',
+        dd: '%d dinten',
+        M: 'sewulan',
+        MM: '%d wulan',
+        y: 'setaun',
+        yy: '%d taun',
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ka.js b/backend/node_modules/moment/dist/locale/ka.js
new file mode 100644
index 0000000..15b6ead
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ka.js
@@ -0,0 +1,92 @@
+//! moment.js locale configuration
+//! locale : Georgian [ka]
+//! author : Irakli Janiashvili : https://github.com/IrakliJani
+
+import moment from '../moment';
+
+export default moment.defineLocale('ka', {
+    months: 'იანვარი_თებერვალი_მარტი_აპრილი_მაისი_ივნისი_ივლისი_აგვისტო_სექტემბერი_ოქტომბერი_ნოემბერი_დეკემბერი'.split(
+        '_'
+    ),
+    monthsShort: 'იან_თებ_მარ_აპრ_მაი_ივნ_ივლ_აგვ_სექ_ოქტ_ნოე_დეკ'.split('_'),
+    weekdays: {
+        standalone:
+            'კვირა_ორშაბათი_სამშაბათი_ოთხშაბათი_ხუთშაბათი_პარასკევი_შაბათი'.split(
+                '_'
+            ),
+        format: 'კვირას_ორშაბათს_სამშაბათს_ოთხშაბათს_ხუთშაბათს_პარასკევს_შაბათს'.split(
+            '_'
+        ),
+        isFormat: /(წინა|შემდეგ)/,
+    },
+    weekdaysShort: 'კვი_ორშ_სამ_ოთხ_ხუთ_პარ_შაბ'.split('_'),
+    weekdaysMin: 'კვ_ორ_სა_ოთ_ხუ_პა_შა'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[დღეს] LT[-ზე]',
+        nextDay: '[ხვალ] LT[-ზე]',
+        lastDay: '[გუშინ] LT[-ზე]',
+        nextWeek: '[შემდეგ] dddd LT[-ზე]',
+        lastWeek: '[წინა] dddd LT-ზე',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: function (s) {
+            return s.replace(
+                /(წამ|წუთ|საათ|წელ|დღ|თვ)(ი|ე)/,
+                function ($0, $1, $2) {
+                    return $2 === 'ი' ? $1 + 'ში' : $1 + $2 + 'ში';
+                }
+            );
+        },
+        past: function (s) {
+            if (/(წამი|წუთი|საათი|დღე|თვე)/.test(s)) {
+                return s.replace(/(ი|ე)$/, 'ის წინ');
+            }
+            if (/წელი/.test(s)) {
+                return s.replace(/წელი$/, 'წლის წინ');
+            }
+            return s;
+        },
+        s: 'რამდენიმე წამი',
+        ss: '%d წამი',
+        m: 'წუთი',
+        mm: '%d წუთი',
+        h: 'საათი',
+        hh: '%d საათი',
+        d: 'დღე',
+        dd: '%d დღე',
+        M: 'თვე',
+        MM: '%d თვე',
+        y: 'წელი',
+        yy: '%d წელი',
+    },
+    dayOfMonthOrdinalParse: /0|1-ლი|მე-\d{1,2}|\d{1,2}-ე/,
+    ordinal: function (number) {
+        if (number === 0) {
+            return number;
+        }
+        if (number === 1) {
+            return number + '-ლი';
+        }
+        if (
+            number < 20 ||
+            (number <= 100 && number % 20 === 0) ||
+            number % 100 === 0
+        ) {
+            return 'მე-' + number;
+        }
+        return number + '-ე';
+    },
+    week: {
+        dow: 1,
+        doy: 7,
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/kk.js b/backend/node_modules/moment/dist/locale/kk.js
new file mode 100644
index 0000000..9cab152
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/kk.js
@@ -0,0 +1,82 @@
+//! moment.js locale configuration
+//! locale : Kazakh [kk]
+//! authors : Nurlan Rakhimzhanov : https://github.com/nurlan
+
+import moment from '../moment';
+
+var suffixes = {
+    0: '-ші',
+    1: '-ші',
+    2: '-ші',
+    3: '-ші',
+    4: '-ші',
+    5: '-ші',
+    6: '-шы',
+    7: '-ші',
+    8: '-ші',
+    9: '-шы',
+    10: '-шы',
+    20: '-шы',
+    30: '-шы',
+    40: '-шы',
+    50: '-ші',
+    60: '-шы',
+    70: '-ші',
+    80: '-ші',
+    90: '-шы',
+    100: '-ші',
+};
+
+export default moment.defineLocale('kk', {
+    months: 'қаңтар_ақпан_наурыз_сәуір_мамыр_маусым_шілде_тамыз_қыркүйек_қазан_қараша_желтоқсан'.split(
+        '_'
+    ),
+    monthsShort: 'қаң_ақп_нау_сәу_мам_мау_шіл_там_қыр_қаз_қар_жел'.split('_'),
+    weekdays: 'жексенбі_дүйсенбі_сейсенбі_сәрсенбі_бейсенбі_жұма_сенбі'.split(
+        '_'
+    ),
+    weekdaysShort: 'жек_дүй_сей_сәр_бей_жұм_сен'.split('_'),
+    weekdaysMin: 'жк_дй_сй_ср_бй_жм_сн'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Бүгін сағат] LT',
+        nextDay: '[Ертең сағат] LT',
+        nextWeek: 'dddd [сағат] LT',
+        lastDay: '[Кеше сағат] LT',
+        lastWeek: '[Өткен аптаның] dddd [сағат] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s ішінде',
+        past: '%s бұрын',
+        s: 'бірнеше секунд',
+        ss: '%d секунд',
+        m: 'бір минут',
+        mm: '%d минут',
+        h: 'бір сағат',
+        hh: '%d сағат',
+        d: 'бір күн',
+        dd: '%d күн',
+        M: 'бір ай',
+        MM: '%d ай',
+        y: 'бір жыл',
+        yy: '%d жыл',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}-(ші|шы)/,
+    ordinal: function (number) {
+        var a = number % 10,
+            b = number >= 100 ? 100 : null;
+        return number + (suffixes[number] || suffixes[a] || suffixes[b]);
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/km.js b/backend/node_modules/moment/dist/locale/km.js
new file mode 100644
index 0000000..984c4dc
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/km.js
@@ -0,0 +1,103 @@
+//! moment.js locale configuration
+//! locale : Cambodian [km]
+//! author : Kruy Vanna : https://github.com/kruyvanna
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '១',
+        2: '២',
+        3: '៣',
+        4: '៤',
+        5: '៥',
+        6: '៦',
+        7: '៧',
+        8: '៨',
+        9: '៩',
+        0: '០',
+    },
+    numberMap = {
+        '១': '1',
+        '២': '2',
+        '៣': '3',
+        '៤': '4',
+        '៥': '5',
+        '៦': '6',
+        '៧': '7',
+        '៨': '8',
+        '៩': '9',
+        '០': '0',
+    };
+
+export default moment.defineLocale('km', {
+    months: 'មករា_កុម្ភៈ_មីនា_មេសា_ឧសភា_មិថុនា_កក្កដា_សីហា_កញ្ញា_តុលា_វិច្ឆិកា_ធ្នូ'.split(
+        '_'
+    ),
+    monthsShort:
+        'មករា_កុម្ភៈ_មីនា_មេសា_ឧសភា_មិថុនា_កក្កដា_សីហា_កញ្ញា_តុលា_វិច្ឆិកា_ធ្នូ'.split(
+            '_'
+        ),
+    weekdays: 'អាទិត្យ_ច័ន្ទ_អង្គារ_ពុធ_ព្រហស្បតិ៍_សុក្រ_សៅរ៍'.split('_'),
+    weekdaysShort: 'អា_ច_អ_ព_ព្រ_សុ_ស'.split('_'),
+    weekdaysMin: 'អា_ច_អ_ព_ព្រ_សុ_ស'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    meridiemParse: /ព្រឹក|ល្ងាច/,
+    isPM: function (input) {
+        return input === 'ល្ងាច';
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'ព្រឹក';
+        } else {
+            return 'ល្ងាច';
+        }
+    },
+    calendar: {
+        sameDay: '[ថ្ងៃនេះ ម៉ោង] LT',
+        nextDay: '[ស្អែក ម៉ោង] LT',
+        nextWeek: 'dddd [ម៉ោង] LT',
+        lastDay: '[ម្សិលមិញ ម៉ោង] LT',
+        lastWeek: 'dddd [សប្តាហ៍មុន] [ម៉ោង] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%sទៀត',
+        past: '%sមុន',
+        s: 'ប៉ុន្មានវិនាទី',
+        ss: '%d វិនាទី',
+        m: 'មួយនាទី',
+        mm: '%d នាទី',
+        h: 'មួយម៉ោង',
+        hh: '%d ម៉ោង',
+        d: 'មួយថ្ងៃ',
+        dd: '%d ថ្ងៃ',
+        M: 'មួយខែ',
+        MM: '%d ខែ',
+        y: 'មួយឆ្នាំ',
+        yy: '%d ឆ្នាំ',
+    },
+    dayOfMonthOrdinalParse: /ទី\d{1,2}/,
+    ordinal: 'ទី%d',
+    preparse: function (string) {
+        return string.replace(/[១២៣៤៥៦៧៨៩០]/g, function (match) {
+            return numberMap[match];
+        });
+    },
+    postformat: function (string) {
+        return string.replace(/\d/g, function (match) {
+            return symbolMap[match];
+        });
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/kn.js b/backend/node_modules/moment/dist/locale/kn.js
new file mode 100644
index 0000000..e7cb354
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/kn.js
@@ -0,0 +1,124 @@
+//! moment.js locale configuration
+//! locale : Kannada [kn]
+//! author : Rajeev Naik : https://github.com/rajeevnaikte
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '೧',
+        2: '೨',
+        3: '೩',
+        4: '೪',
+        5: '೫',
+        6: '೬',
+        7: '೭',
+        8: '೮',
+        9: '೯',
+        0: '೦',
+    },
+    numberMap = {
+        '೧': '1',
+        '೨': '2',
+        '೩': '3',
+        '೪': '4',
+        '೫': '5',
+        '೬': '6',
+        '೭': '7',
+        '೮': '8',
+        '೯': '9',
+        '೦': '0',
+    };
+
+export default moment.defineLocale('kn', {
+    months: 'ಜನವರಿ_ಫೆಬ್ರವರಿ_ಮಾರ್ಚ್_ಏಪ್ರಿಲ್_ಮೇ_ಜೂನ್_ಜುಲೈ_ಆಗಸ್ಟ್_ಸೆಪ್ಟೆಂಬರ್_ಅಕ್ಟೋಬರ್_ನವೆಂಬರ್_ಡಿಸೆಂಬರ್'.split(
+        '_'
+    ),
+    monthsShort:
+        'ಜನ_ಫೆಬ್ರ_ಮಾರ್ಚ್_ಏಪ್ರಿಲ್_ಮೇ_ಜೂನ್_ಜುಲೈ_ಆಗಸ್ಟ್_ಸೆಪ್ಟೆಂ_ಅಕ್ಟೋ_ನವೆಂ_ಡಿಸೆಂ'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'ಭಾನುವಾರ_ಸೋಮವಾರ_ಮಂಗಳವಾರ_ಬುಧವಾರ_ಗುರುವಾರ_ಶುಕ್ರವಾರ_ಶನಿವಾರ'.split(
+        '_'
+    ),
+    weekdaysShort: 'ಭಾನು_ಸೋಮ_ಮಂಗಳ_ಬುಧ_ಗುರು_ಶುಕ್ರ_ಶನಿ'.split('_'),
+    weekdaysMin: 'ಭಾ_ಸೋ_ಮಂ_ಬು_ಗು_ಶು_ಶ'.split('_'),
+    longDateFormat: {
+        LT: 'A h:mm',
+        LTS: 'A h:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY, A h:mm',
+        LLLL: 'dddd, D MMMM YYYY, A h:mm',
+    },
+    calendar: {
+        sameDay: '[ಇಂದು] LT',
+        nextDay: '[ನಾಳೆ] LT',
+        nextWeek: 'dddd, LT',
+        lastDay: '[ನಿನ್ನೆ] LT',
+        lastWeek: '[ಕೊನೆಯ] dddd, LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s ನಂತರ',
+        past: '%s ಹಿಂದೆ',
+        s: 'ಕೆಲವು ಕ್ಷಣಗಳು',
+        ss: '%d ಸೆಕೆಂಡುಗಳು',
+        m: 'ಒಂದು ನಿಮಿಷ',
+        mm: '%d ನಿಮಿಷ',
+        h: 'ಒಂದು ಗಂಟೆ',
+        hh: '%d ಗಂಟೆ',
+        d: 'ಒಂದು ದಿನ',
+        dd: '%d ದಿನ',
+        M: 'ಒಂದು ತಿಂಗಳು',
+        MM: '%d ತಿಂಗಳು',
+        y: 'ಒಂದು ವರ್ಷ',
+        yy: '%d ವರ್ಷ',
+    },
+    preparse: function (string) {
+        return string.replace(/[೧೨೩೪೫೬೭೮೯೦]/g, function (match) {
+            return numberMap[match];
+        });
+    },
+    postformat: function (string) {
+        return string.replace(/\d/g, function (match) {
+            return symbolMap[match];
+        });
+    },
+    meridiemParse: /ರಾತ್ರಿ|ಬೆಳಿಗ್ಗೆ|ಮಧ್ಯಾಹ್ನ|ಸಂಜೆ/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'ರಾತ್ರಿ') {
+            return hour < 4 ? hour : hour + 12;
+        } else if (meridiem === 'ಬೆಳಿಗ್ಗೆ') {
+            return hour;
+        } else if (meridiem === 'ಮಧ್ಯಾಹ್ನ') {
+            return hour >= 10 ? hour : hour + 12;
+        } else if (meridiem === 'ಸಂಜೆ') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'ರಾತ್ರಿ';
+        } else if (hour < 10) {
+            return 'ಬೆಳಿಗ್ಗೆ';
+        } else if (hour < 17) {
+            return 'ಮಧ್ಯಾಹ್ನ';
+        } else if (hour < 20) {
+            return 'ಸಂಜೆ';
+        } else {
+            return 'ರಾತ್ರಿ';
+        }
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(ನೇ)/,
+    ordinal: function (number) {
+        return number + 'ನೇ';
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ko.js b/backend/node_modules/moment/dist/locale/ko.js
new file mode 100644
index 0000000..c45f3e3
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ko.js
@@ -0,0 +1,75 @@
+//! moment.js locale configuration
+//! locale : Korean [ko]
+//! author : Kyungwook, Park : https://github.com/kyungw00k
+//! author : Jeeeyul Lee <jeeeyul@gmail.com>
+
+import moment from '../moment';
+
+export default moment.defineLocale('ko', {
+    months: '1월_2월_3월_4월_5월_6월_7월_8월_9월_10월_11월_12월'.split('_'),
+    monthsShort: '1월_2월_3월_4월_5월_6월_7월_8월_9월_10월_11월_12월'.split(
+        '_'
+    ),
+    weekdays: '일요일_월요일_화요일_수요일_목요일_금요일_토요일'.split('_'),
+    weekdaysShort: '일_월_화_수_목_금_토'.split('_'),
+    weekdaysMin: '일_월_화_수_목_금_토'.split('_'),
+    longDateFormat: {
+        LT: 'A h:mm',
+        LTS: 'A h:mm:ss',
+        L: 'YYYY.MM.DD.',
+        LL: 'YYYY년 MMMM D일',
+        LLL: 'YYYY년 MMMM D일 A h:mm',
+        LLLL: 'YYYY년 MMMM D일 dddd A h:mm',
+        l: 'YYYY.MM.DD.',
+        ll: 'YYYY년 MMMM D일',
+        lll: 'YYYY년 MMMM D일 A h:mm',
+        llll: 'YYYY년 MMMM D일 dddd A h:mm',
+    },
+    calendar: {
+        sameDay: '오늘 LT',
+        nextDay: '내일 LT',
+        nextWeek: 'dddd LT',
+        lastDay: '어제 LT',
+        lastWeek: '지난주 dddd LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s 후',
+        past: '%s 전',
+        s: '몇 초',
+        ss: '%d초',
+        m: '1분',
+        mm: '%d분',
+        h: '한 시간',
+        hh: '%d시간',
+        d: '하루',
+        dd: '%d일',
+        M: '한 달',
+        MM: '%d달',
+        y: '일 년',
+        yy: '%d년',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(일|월|주)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'd':
+            case 'D':
+            case 'DDD':
+                return number + '일';
+            case 'M':
+                return number + '월';
+            case 'w':
+            case 'W':
+                return number + '주';
+            default:
+                return number;
+        }
+    },
+    meridiemParse: /오전|오후/,
+    isPM: function (token) {
+        return token === '오후';
+    },
+    meridiem: function (hour, minute, isUpper) {
+        return hour < 12 ? '오전' : '오후';
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ku-kmr.js b/backend/node_modules/moment/dist/locale/ku-kmr.js
new file mode 100644
index 0000000..87ad603
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ku-kmr.js
@@ -0,0 +1,121 @@
+//! moment.js locale configuration
+//! locale : Northern Kurdish [ku-kmr]
+//! authors : Mazlum Özdogan : https://github.com/mergehez
+
+// All rules except for month names are according to
+// the spelling rules which are defined in the book 'Rêbera Rastnivîsînê' from Komxebata Kurmancîyê.
+// Komxebata Kurmancîyê is a work group that studied different uses in Kurdish language (Kurmanji/Northern Kurdish),
+// chose one of alternatives as standard and publish them via their book.
+// There are 18 Kurdish linguists in the group.
+// The group was formed by Mesopotamia Foundation
+
+import moment from '../moment';
+
+function processRelativeTime(num, withoutSuffix, key, isFuture) {
+    var format = {
+        s: ['çend sanîye', 'çend sanîyeyan'],
+        ss: [num + ' sanîye', num + ' sanîyeyan'],
+        m: ['deqîqeyek', 'deqîqeyekê'],
+        mm: [num + ' deqîqe', num + ' deqîqeyan'],
+        h: ['saetek', 'saetekê'],
+        hh: [num + ' saet', num + ' saetan'],
+        d: ['rojek', 'rojekê'],
+        dd: [num + ' roj', num + ' rojan'],
+        w: ['hefteyek', 'hefteyekê'],
+        ww: [num + ' hefte', num + ' hefteyan'],
+        M: ['mehek', 'mehekê'],
+        MM: [num + ' meh', num + ' mehan'],
+        y: ['salek', 'salekê'],
+        yy: [num + ' sal', num + ' salan'],
+    };
+    return withoutSuffix ? format[key][0] : format[key][1];
+}
+// function obliqueNumSuffix(num) {
+//     if(num.includes(':'))
+//         num = parseInt(num.split(':')[0]);
+//     else
+//         num = parseInt(num);
+//     return num == 0 || num % 10 == 1 ? 'ê'
+//                         : (num > 10 && num % 10 == 0 ? 'î' : 'an');
+// }
+function ezafeNumSuffix(num) {
+    num = '' + num;
+    var l = num.substring(num.length - 1),
+        ll = num.length > 1 ? num.substring(num.length - 2) : '';
+    if (
+        !(ll == 12 || ll == 13) &&
+        (l == '2' || l == '3' || ll == '50' || l == '70' || l == '80')
+    )
+        return 'yê';
+    return 'ê';
+}
+
+export default moment.defineLocale('ku-kmr', {
+    // According to the spelling rules defined by the work group of Weqfa Mezopotamyayê (Mesopotamia Foundation)
+    // this should be: 'Kanûna Paşîn_Sibat_Adar_Nîsan_Gulan_Hezîran_Tîrmeh_Tebax_Îlon_Çirîya Pêşîn_Çirîya Paşîn_Kanûna Pêşîn'
+    // But the names below are more well known and handy
+    months: 'Rêbendan_Sibat_Adar_Nîsan_Gulan_Hezîran_Tîrmeh_Tebax_Îlon_Cotmeh_Mijdar_Berfanbar'.split(
+        '_'
+    ),
+    monthsShort: 'Rêb_Sib_Ada_Nîs_Gul_Hez_Tîr_Teb_Îlo_Cot_Mij_Ber'.split('_'),
+    monthsParseExact: true,
+    weekdays: 'Yekşem_Duşem_Sêşem_Çarşem_Pêncşem_În_Şemî'.split('_'),
+    weekdaysShort: 'Yek_Du_Sê_Çar_Pên_În_Şem'.split('_'),
+    weekdaysMin: 'Ye_Du_Sê_Ça_Pê_În_Şe'.split('_'),
+    meridiem: function (hours, minutes, isLower) {
+        if (hours < 12) {
+            return isLower ? 'bn' : 'BN';
+        } else {
+            return isLower ? 'pn' : 'PN';
+        }
+    },
+    meridiemParse: /bn|BN|pn|PN/,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'Do MMMM[a] YYYY[an]',
+        LLL: 'Do MMMM[a] YYYY[an] HH:mm',
+        LLLL: 'dddd, Do MMMM[a] YYYY[an] HH:mm',
+        ll: 'Do MMM[.] YYYY[an]',
+        lll: 'Do MMM[.] YYYY[an] HH:mm',
+        llll: 'ddd[.], Do MMM[.] YYYY[an] HH:mm',
+    },
+    calendar: {
+        sameDay: '[Îro di saet] LT [de]',
+        nextDay: '[Sibê di saet] LT [de]',
+        nextWeek: 'dddd [di saet] LT [de]',
+        lastDay: '[Duh di saet] LT [de]',
+        lastWeek: 'dddd[a borî di saet] LT [de]',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'di %s de',
+        past: 'berî %s',
+        s: processRelativeTime,
+        ss: processRelativeTime,
+        m: processRelativeTime,
+        mm: processRelativeTime,
+        h: processRelativeTime,
+        hh: processRelativeTime,
+        d: processRelativeTime,
+        dd: processRelativeTime,
+        w: processRelativeTime,
+        ww: processRelativeTime,
+        M: processRelativeTime,
+        MM: processRelativeTime,
+        y: processRelativeTime,
+        yy: processRelativeTime,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(?:yê|ê|\.)/,
+    ordinal: function (num, period) {
+        var p = period.toLowerCase();
+        if (p.includes('w') || p.includes('m')) return num + '.';
+
+        return num + ezafeNumSuffix(num);
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ku.js b/backend/node_modules/moment/dist/locale/ku.js
new file mode 100644
index 0000000..e705f01
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ku.js
@@ -0,0 +1,118 @@
+//! moment.js locale configuration
+//! locale : Kurdish [ku]
+//! author : Shahram Mebashar : https://github.com/ShahramMebashar
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '١',
+        2: '٢',
+        3: '٣',
+        4: '٤',
+        5: '٥',
+        6: '٦',
+        7: '٧',
+        8: '٨',
+        9: '٩',
+        0: '٠',
+    },
+    numberMap = {
+        '١': '1',
+        '٢': '2',
+        '٣': '3',
+        '٤': '4',
+        '٥': '5',
+        '٦': '6',
+        '٧': '7',
+        '٨': '8',
+        '٩': '9',
+        '٠': '0',
+    },
+    months = [
+        'کانونی دووەم',
+        'شوبات',
+        'ئازار',
+        'نیسان',
+        'ئایار',
+        'حوزەیران',
+        'تەمموز',
+        'ئاب',
+        'ئەیلوول',
+        'تشرینی یەكەم',
+        'تشرینی دووەم',
+        'كانونی یەکەم',
+    ];
+
+export default moment.defineLocale('ku', {
+    months: months,
+    monthsShort: months,
+    weekdays:
+        'یه‌كشه‌ممه‌_دووشه‌ممه‌_سێشه‌ممه‌_چوارشه‌ممه‌_پێنجشه‌ممه‌_هه‌ینی_شه‌ممه‌'.split(
+            '_'
+        ),
+    weekdaysShort:
+        'یه‌كشه‌م_دووشه‌م_سێشه‌م_چوارشه‌م_پێنجشه‌م_هه‌ینی_شه‌ممه‌'.split('_'),
+    weekdaysMin: 'ی_د_س_چ_پ_ه_ش'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    meridiemParse: /ئێواره‌|به‌یانی/,
+    isPM: function (input) {
+        return /ئێواره‌/.test(input);
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'به‌یانی';
+        } else {
+            return 'ئێواره‌';
+        }
+    },
+    calendar: {
+        sameDay: '[ئه‌مرۆ كاتژمێر] LT',
+        nextDay: '[به‌یانی كاتژمێر] LT',
+        nextWeek: 'dddd [كاتژمێر] LT',
+        lastDay: '[دوێنێ كاتژمێر] LT',
+        lastWeek: 'dddd [كاتژمێر] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'له‌ %s',
+        past: '%s',
+        s: 'چه‌ند چركه‌یه‌ك',
+        ss: 'چركه‌ %d',
+        m: 'یه‌ك خوله‌ك',
+        mm: '%d خوله‌ك',
+        h: 'یه‌ك كاتژمێر',
+        hh: '%d كاتژمێر',
+        d: 'یه‌ك ڕۆژ',
+        dd: '%d ڕۆژ',
+        M: 'یه‌ك مانگ',
+        MM: '%d مانگ',
+        y: 'یه‌ك ساڵ',
+        yy: '%d ساڵ',
+    },
+    preparse: function (string) {
+        return string
+            .replace(/[١٢٣٤٥٦٧٨٩٠]/g, function (match) {
+                return numberMap[match];
+            })
+            .replace(/،/g, ',');
+    },
+    postformat: function (string) {
+        return string
+            .replace(/\d/g, function (match) {
+                return symbolMap[match];
+            })
+            .replace(/,/g, '،');
+    },
+    week: {
+        dow: 6, // Saturday is the first day of the week.
+        doy: 12, // The week that contains Jan 12th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ky.js b/backend/node_modules/moment/dist/locale/ky.js
new file mode 100644
index 0000000..2108d09
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ky.js
@@ -0,0 +1,84 @@
+//! moment.js locale configuration
+//! locale : Kyrgyz [ky]
+//! author : Chyngyz Arystan uulu : https://github.com/chyngyz
+
+import moment from '../moment';
+
+var suffixes = {
+    0: '-чү',
+    1: '-чи',
+    2: '-чи',
+    3: '-чү',
+    4: '-чү',
+    5: '-чи',
+    6: '-чы',
+    7: '-чи',
+    8: '-чи',
+    9: '-чу',
+    10: '-чу',
+    20: '-чы',
+    30: '-чу',
+    40: '-чы',
+    50: '-чү',
+    60: '-чы',
+    70: '-чи',
+    80: '-чи',
+    90: '-чу',
+    100: '-чү',
+};
+
+export default moment.defineLocale('ky', {
+    months: 'январь_февраль_март_апрель_май_июнь_июль_август_сентябрь_октябрь_ноябрь_декабрь'.split(
+        '_'
+    ),
+    monthsShort: 'янв_фев_март_апр_май_июнь_июль_авг_сен_окт_ноя_дек'.split(
+        '_'
+    ),
+    weekdays: 'Жекшемби_Дүйшөмбү_Шейшемби_Шаршемби_Бейшемби_Жума_Ишемби'.split(
+        '_'
+    ),
+    weekdaysShort: 'Жек_Дүй_Шей_Шар_Бей_Жум_Ише'.split('_'),
+    weekdaysMin: 'Жк_Дй_Шй_Шр_Бй_Жм_Иш'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Бүгүн саат] LT',
+        nextDay: '[Эртең саат] LT',
+        nextWeek: 'dddd [саат] LT',
+        lastDay: '[Кечээ саат] LT',
+        lastWeek: '[Өткөн аптанын] dddd [күнү] [саат] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s ичинде',
+        past: '%s мурун',
+        s: 'бирнече секунд',
+        ss: '%d секунд',
+        m: 'бир мүнөт',
+        mm: '%d мүнөт',
+        h: 'бир саат',
+        hh: '%d саат',
+        d: 'бир күн',
+        dd: '%d күн',
+        M: 'бир ай',
+        MM: '%d ай',
+        y: 'бир жыл',
+        yy: '%d жыл',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}-(чи|чы|чү|чу)/,
+    ordinal: function (number) {
+        var a = number % 10,
+            b = number >= 100 ? 100 : null;
+        return number + (suffixes[number] || suffixes[a] || suffixes[b]);
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/lb.js b/backend/node_modules/moment/dist/locale/lb.js
new file mode 100644
index 0000000..f01e662
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/lb.js
@@ -0,0 +1,137 @@
+//! moment.js locale configuration
+//! locale : Luxembourgish [lb]
+//! author : mweimerskirch : https://github.com/mweimerskirch
+//! author : David Raison : https://github.com/kwisatz
+
+import moment from '../moment';
+
+function processRelativeTime(number, withoutSuffix, key, isFuture) {
+    var format = {
+        m: ['eng Minutt', 'enger Minutt'],
+        h: ['eng Stonn', 'enger Stonn'],
+        d: ['een Dag', 'engem Dag'],
+        M: ['ee Mount', 'engem Mount'],
+        y: ['ee Joer', 'engem Joer'],
+    };
+    return withoutSuffix ? format[key][0] : format[key][1];
+}
+function processFutureTime(string) {
+    var number = string.substr(0, string.indexOf(' '));
+    if (eifelerRegelAppliesToNumber(number)) {
+        return 'a ' + string;
+    }
+    return 'an ' + string;
+}
+function processPastTime(string) {
+    var number = string.substr(0, string.indexOf(' '));
+    if (eifelerRegelAppliesToNumber(number)) {
+        return 'viru ' + string;
+    }
+    return 'virun ' + string;
+}
+/**
+ * Returns true if the word before the given number loses the '-n' ending.
+ * e.g. 'an 10 Deeg' but 'a 5 Deeg'
+ *
+ * @param number {integer}
+ * @returns {boolean}
+ */
+function eifelerRegelAppliesToNumber(number) {
+    number = parseInt(number, 10);
+    if (isNaN(number)) {
+        return false;
+    }
+    if (number < 0) {
+        // Negative Number --> always true
+        return true;
+    } else if (number < 10) {
+        // Only 1 digit
+        if (4 <= number && number <= 7) {
+            return true;
+        }
+        return false;
+    } else if (number < 100) {
+        // 2 digits
+        var lastDigit = number % 10,
+            firstDigit = number / 10;
+        if (lastDigit === 0) {
+            return eifelerRegelAppliesToNumber(firstDigit);
+        }
+        return eifelerRegelAppliesToNumber(lastDigit);
+    } else if (number < 10000) {
+        // 3 or 4 digits --> recursively check first digit
+        while (number >= 10) {
+            number = number / 10;
+        }
+        return eifelerRegelAppliesToNumber(number);
+    } else {
+        // Anything larger than 4 digits: recursively check first n-3 digits
+        number = number / 1000;
+        return eifelerRegelAppliesToNumber(number);
+    }
+}
+
+export default moment.defineLocale('lb', {
+    months: 'Januar_Februar_Mäerz_Abrëll_Mee_Juni_Juli_August_September_Oktober_November_Dezember'.split(
+        '_'
+    ),
+    monthsShort:
+        'Jan._Febr._Mrz._Abr._Mee_Jun._Jul._Aug._Sept._Okt._Nov._Dez.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays:
+        'Sonndeg_Méindeg_Dënschdeg_Mëttwoch_Donneschdeg_Freideg_Samschdeg'.split(
+            '_'
+        ),
+    weekdaysShort: 'So._Mé._Dë._Më._Do._Fr._Sa.'.split('_'),
+    weekdaysMin: 'So_Mé_Dë_Më_Do_Fr_Sa'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm [Auer]',
+        LTS: 'H:mm:ss [Auer]',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY H:mm [Auer]',
+        LLLL: 'dddd, D. MMMM YYYY H:mm [Auer]',
+    },
+    calendar: {
+        sameDay: '[Haut um] LT',
+        sameElse: 'L',
+        nextDay: '[Muer um] LT',
+        nextWeek: 'dddd [um] LT',
+        lastDay: '[Gëschter um] LT',
+        lastWeek: function () {
+            // Different date string for 'Dënschdeg' (Tuesday) and 'Donneschdeg' (Thursday) due to phonological rule
+            switch (this.day()) {
+                case 2:
+                case 4:
+                    return '[Leschten] dddd [um] LT';
+                default:
+                    return '[Leschte] dddd [um] LT';
+            }
+        },
+    },
+    relativeTime: {
+        future: processFutureTime,
+        past: processPastTime,
+        s: 'e puer Sekonnen',
+        ss: '%d Sekonnen',
+        m: processRelativeTime,
+        mm: '%d Minutten',
+        h: processRelativeTime,
+        hh: '%d Stonnen',
+        d: processRelativeTime,
+        dd: '%d Deeg',
+        M: processRelativeTime,
+        MM: '%d Méint',
+        y: processRelativeTime,
+        yy: '%d Joer',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/lo.js b/backend/node_modules/moment/dist/locale/lo.js
new file mode 100644
index 0000000..cd6cc20
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/lo.js
@@ -0,0 +1,66 @@
+//! moment.js locale configuration
+//! locale : Lao [lo]
+//! author : Ryan Hart : https://github.com/ryanhart2
+
+import moment from '../moment';
+
+export default moment.defineLocale('lo', {
+    months: 'ມັງກອນ_ກຸມພາ_ມີນາ_ເມສາ_ພຶດສະພາ_ມິຖຸນາ_ກໍລະກົດ_ສິງຫາ_ກັນຍາ_ຕຸລາ_ພະຈິກ_ທັນວາ'.split(
+        '_'
+    ),
+    monthsShort:
+        'ມັງກອນ_ກຸມພາ_ມີນາ_ເມສາ_ພຶດສະພາ_ມິຖຸນາ_ກໍລະກົດ_ສິງຫາ_ກັນຍາ_ຕຸລາ_ພະຈິກ_ທັນວາ'.split(
+            '_'
+        ),
+    weekdays: 'ອາທິດ_ຈັນ_ອັງຄານ_ພຸດ_ພະຫັດ_ສຸກ_ເສົາ'.split('_'),
+    weekdaysShort: 'ທິດ_ຈັນ_ອັງຄານ_ພຸດ_ພະຫັດ_ສຸກ_ເສົາ'.split('_'),
+    weekdaysMin: 'ທ_ຈ_ອຄ_ພ_ພຫ_ສກ_ສ'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'ວັນdddd D MMMM YYYY HH:mm',
+    },
+    meridiemParse: /ຕອນເຊົ້າ|ຕອນແລງ/,
+    isPM: function (input) {
+        return input === 'ຕອນແລງ';
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'ຕອນເຊົ້າ';
+        } else {
+            return 'ຕອນແລງ';
+        }
+    },
+    calendar: {
+        sameDay: '[ມື້ນີ້ເວລາ] LT',
+        nextDay: '[ມື້ອື່ນເວລາ] LT',
+        nextWeek: '[ວັນ]dddd[ໜ້າເວລາ] LT',
+        lastDay: '[ມື້ວານນີ້ເວລາ] LT',
+        lastWeek: '[ວັນ]dddd[ແລ້ວນີ້ເວລາ] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'ອີກ %s',
+        past: '%sຜ່ານມາ',
+        s: 'ບໍ່ເທົ່າໃດວິນາທີ',
+        ss: '%d ວິນາທີ',
+        m: '1 ນາທີ',
+        mm: '%d ນາທີ',
+        h: '1 ຊົ່ວໂມງ',
+        hh: '%d ຊົ່ວໂມງ',
+        d: '1 ມື້',
+        dd: '%d ມື້',
+        M: '1 ເດືອນ',
+        MM: '%d ເດືອນ',
+        y: '1 ປີ',
+        yy: '%d ປີ',
+    },
+    dayOfMonthOrdinalParse: /(ທີ່)\d{1,2}/,
+    ordinal: function (number) {
+        return 'ທີ່' + number;
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/lt.js b/backend/node_modules/moment/dist/locale/lt.js
new file mode 100644
index 0000000..83c1595
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/lt.js
@@ -0,0 +1,125 @@
+//! moment.js locale configuration
+//! locale : Lithuanian [lt]
+//! author : Mindaugas Mozūras : https://github.com/mmozuras
+
+import moment from '../moment';
+
+var units = {
+    ss: 'sekundė_sekundžių_sekundes',
+    m: 'minutė_minutės_minutę',
+    mm: 'minutės_minučių_minutes',
+    h: 'valanda_valandos_valandą',
+    hh: 'valandos_valandų_valandas',
+    d: 'diena_dienos_dieną',
+    dd: 'dienos_dienų_dienas',
+    M: 'mėnuo_mėnesio_mėnesį',
+    MM: 'mėnesiai_mėnesių_mėnesius',
+    y: 'metai_metų_metus',
+    yy: 'metai_metų_metus',
+};
+function translateSeconds(number, withoutSuffix, key, isFuture) {
+    if (withoutSuffix) {
+        return 'kelios sekundės';
+    } else {
+        return isFuture ? 'kelių sekundžių' : 'kelias sekundes';
+    }
+}
+function translateSingular(number, withoutSuffix, key, isFuture) {
+    return withoutSuffix
+        ? forms(key)[0]
+        : isFuture
+          ? forms(key)[1]
+          : forms(key)[2];
+}
+function special(number) {
+    return number % 10 === 0 || (number > 10 && number < 20);
+}
+function forms(key) {
+    return units[key].split('_');
+}
+function translate(number, withoutSuffix, key, isFuture) {
+    var result = number + ' ';
+    if (number === 1) {
+        return (
+            result + translateSingular(number, withoutSuffix, key[0], isFuture)
+        );
+    } else if (withoutSuffix) {
+        return result + (special(number) ? forms(key)[1] : forms(key)[0]);
+    } else {
+        if (isFuture) {
+            return result + forms(key)[1];
+        } else {
+            return result + (special(number) ? forms(key)[1] : forms(key)[2]);
+        }
+    }
+}
+export default moment.defineLocale('lt', {
+    months: {
+        format: 'sausio_vasario_kovo_balandžio_gegužės_birželio_liepos_rugpjūčio_rugsėjo_spalio_lapkričio_gruodžio'.split(
+            '_'
+        ),
+        standalone:
+            'sausis_vasaris_kovas_balandis_gegužė_birželis_liepa_rugpjūtis_rugsėjis_spalis_lapkritis_gruodis'.split(
+                '_'
+            ),
+        isFormat: /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?|MMMM?(\[[^\[\]]*\]|\s)+D[oD]?/,
+    },
+    monthsShort: 'sau_vas_kov_bal_geg_bir_lie_rgp_rgs_spa_lap_grd'.split('_'),
+    weekdays: {
+        format: 'sekmadienį_pirmadienį_antradienį_trečiadienį_ketvirtadienį_penktadienį_šeštadienį'.split(
+            '_'
+        ),
+        standalone:
+            'sekmadienis_pirmadienis_antradienis_trečiadienis_ketvirtadienis_penktadienis_šeštadienis'.split(
+                '_'
+            ),
+        isFormat: /dddd HH:mm/,
+    },
+    weekdaysShort: 'Sek_Pir_Ant_Tre_Ket_Pen_Šeš'.split('_'),
+    weekdaysMin: 'S_P_A_T_K_Pn_Š'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'YYYY-MM-DD',
+        LL: 'YYYY [m.] MMMM D [d.]',
+        LLL: 'YYYY [m.] MMMM D [d.], HH:mm [val.]',
+        LLLL: 'YYYY [m.] MMMM D [d.], dddd, HH:mm [val.]',
+        l: 'YYYY-MM-DD',
+        ll: 'YYYY [m.] MMMM D [d.]',
+        lll: 'YYYY [m.] MMMM D [d.], HH:mm [val.]',
+        llll: 'YYYY [m.] MMMM D [d.], ddd, HH:mm [val.]',
+    },
+    calendar: {
+        sameDay: '[Šiandien] LT',
+        nextDay: '[Rytoj] LT',
+        nextWeek: 'dddd LT',
+        lastDay: '[Vakar] LT',
+        lastWeek: '[Praėjusį] dddd LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'po %s',
+        past: 'prieš %s',
+        s: translateSeconds,
+        ss: translate,
+        m: translateSingular,
+        mm: translate,
+        h: translateSingular,
+        hh: translate,
+        d: translateSingular,
+        dd: translate,
+        M: translateSingular,
+        MM: translate,
+        y: translateSingular,
+        yy: translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}-oji/,
+    ordinal: function (number) {
+        return number + '-oji';
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/lv.js b/backend/node_modules/moment/dist/locale/lv.js
new file mode 100644
index 0000000..3a89653
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/lv.js
@@ -0,0 +1,94 @@
+//! moment.js locale configuration
+//! locale : Latvian [lv]
+//! author : Kristaps Karlsons : https://github.com/skakri
+//! author : Jānis Elmeris : https://github.com/JanisE
+
+import moment from '../moment';
+
+var units = {
+    ss: 'sekundes_sekundēm_sekunde_sekundes'.split('_'),
+    m: 'minūtes_minūtēm_minūte_minūtes'.split('_'),
+    mm: 'minūtes_minūtēm_minūte_minūtes'.split('_'),
+    h: 'stundas_stundām_stunda_stundas'.split('_'),
+    hh: 'stundas_stundām_stunda_stundas'.split('_'),
+    d: 'dienas_dienām_diena_dienas'.split('_'),
+    dd: 'dienas_dienām_diena_dienas'.split('_'),
+    M: 'mēneša_mēnešiem_mēnesis_mēneši'.split('_'),
+    MM: 'mēneša_mēnešiem_mēnesis_mēneši'.split('_'),
+    y: 'gada_gadiem_gads_gadi'.split('_'),
+    yy: 'gada_gadiem_gads_gadi'.split('_'),
+};
+/**
+ * @param withoutSuffix boolean true = a length of time; false = before/after a period of time.
+ */
+function format(forms, number, withoutSuffix) {
+    if (withoutSuffix) {
+        // E.g. "21 minūte", "3 minūtes".
+        return number % 10 === 1 && number % 100 !== 11 ? forms[2] : forms[3];
+    } else {
+        // E.g. "21 minūtes" as in "pēc 21 minūtes".
+        // E.g. "3 minūtēm" as in "pēc 3 minūtēm".
+        return number % 10 === 1 && number % 100 !== 11 ? forms[0] : forms[1];
+    }
+}
+function relativeTimeWithPlural(number, withoutSuffix, key) {
+    return number + ' ' + format(units[key], number, withoutSuffix);
+}
+function relativeTimeWithSingular(number, withoutSuffix, key) {
+    return format(units[key], number, withoutSuffix);
+}
+function relativeSeconds(number, withoutSuffix) {
+    return withoutSuffix ? 'dažas sekundes' : 'dažām sekundēm';
+}
+
+export default moment.defineLocale('lv', {
+    months: 'janvāris_februāris_marts_aprīlis_maijs_jūnijs_jūlijs_augusts_septembris_oktobris_novembris_decembris'.split(
+        '_'
+    ),
+    monthsShort: 'jan_feb_mar_apr_mai_jūn_jūl_aug_sep_okt_nov_dec'.split('_'),
+    weekdays:
+        'svētdiena_pirmdiena_otrdiena_trešdiena_ceturtdiena_piektdiena_sestdiena'.split(
+            '_'
+        ),
+    weekdaysShort: 'Sv_P_O_T_C_Pk_S'.split('_'),
+    weekdaysMin: 'Sv_P_O_T_C_Pk_S'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY.',
+        LL: 'YYYY. [gada] D. MMMM',
+        LLL: 'YYYY. [gada] D. MMMM, HH:mm',
+        LLLL: 'YYYY. [gada] D. MMMM, dddd, HH:mm',
+    },
+    calendar: {
+        sameDay: '[Šodien pulksten] LT',
+        nextDay: '[Rīt pulksten] LT',
+        nextWeek: 'dddd [pulksten] LT',
+        lastDay: '[Vakar pulksten] LT',
+        lastWeek: '[Pagājušā] dddd [pulksten] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'pēc %s',
+        past: 'pirms %s',
+        s: relativeSeconds,
+        ss: relativeTimeWithPlural,
+        m: relativeTimeWithSingular,
+        mm: relativeTimeWithPlural,
+        h: relativeTimeWithSingular,
+        hh: relativeTimeWithPlural,
+        d: relativeTimeWithSingular,
+        dd: relativeTimeWithPlural,
+        M: relativeTimeWithSingular,
+        MM: relativeTimeWithPlural,
+        y: relativeTimeWithSingular,
+        yy: relativeTimeWithPlural,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/me.js b/backend/node_modules/moment/dist/locale/me.js
new file mode 100644
index 0000000..e22c8d9
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/me.js
@@ -0,0 +1,117 @@
+//! moment.js locale configuration
+//! locale : Montenegrin [me]
+//! author : Miodrag Nikač <miodrag@restartit.me> : https://github.com/miodragnikac
+
+import moment from '../moment';
+
+var translator = {
+    words: {
+        //Different grammatical cases
+        ss: ['sekund', 'sekunda', 'sekundi'],
+        m: ['jedan minut', 'jednog minuta'],
+        mm: ['minut', 'minuta', 'minuta'],
+        h: ['jedan sat', 'jednog sata'],
+        hh: ['sat', 'sata', 'sati'],
+        dd: ['dan', 'dana', 'dana'],
+        MM: ['mjesec', 'mjeseca', 'mjeseci'],
+        yy: ['godina', 'godine', 'godina'],
+    },
+    correctGrammaticalCase: function (number, wordKey) {
+        return number === 1
+            ? wordKey[0]
+            : number >= 2 && number <= 4
+              ? wordKey[1]
+              : wordKey[2];
+    },
+    translate: function (number, withoutSuffix, key) {
+        var wordKey = translator.words[key];
+        if (key.length === 1) {
+            return withoutSuffix ? wordKey[0] : wordKey[1];
+        } else {
+            return (
+                number +
+                ' ' +
+                translator.correctGrammaticalCase(number, wordKey)
+            );
+        }
+    },
+};
+
+export default moment.defineLocale('me', {
+    months: 'januar_februar_mart_april_maj_jun_jul_avgust_septembar_oktobar_novembar_decembar'.split(
+        '_'
+    ),
+    monthsShort:
+        'jan._feb._mar._apr._maj_jun_jul_avg._sep._okt._nov._dec.'.split('_'),
+    monthsParseExact: true,
+    weekdays: 'nedjelja_ponedjeljak_utorak_srijeda_četvrtak_petak_subota'.split(
+        '_'
+    ),
+    weekdaysShort: 'ned._pon._uto._sri._čet._pet._sub.'.split('_'),
+    weekdaysMin: 'ne_po_ut_sr_če_pe_su'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY H:mm',
+        LLLL: 'dddd, D. MMMM YYYY H:mm',
+    },
+    calendar: {
+        sameDay: '[danas u] LT',
+        nextDay: '[sjutra u] LT',
+
+        nextWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[u] [nedjelju] [u] LT';
+                case 3:
+                    return '[u] [srijedu] [u] LT';
+                case 6:
+                    return '[u] [subotu] [u] LT';
+                case 1:
+                case 2:
+                case 4:
+                case 5:
+                    return '[u] dddd [u] LT';
+            }
+        },
+        lastDay: '[juče u] LT',
+        lastWeek: function () {
+            var lastWeekDays = [
+                '[prošle] [nedjelje] [u] LT',
+                '[prošlog] [ponedjeljka] [u] LT',
+                '[prošlog] [utorka] [u] LT',
+                '[prošle] [srijede] [u] LT',
+                '[prošlog] [četvrtka] [u] LT',
+                '[prošlog] [petka] [u] LT',
+                '[prošle] [subote] [u] LT',
+            ];
+            return lastWeekDays[this.day()];
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'za %s',
+        past: 'prije %s',
+        s: 'nekoliko sekundi',
+        ss: translator.translate,
+        m: translator.translate,
+        mm: translator.translate,
+        h: translator.translate,
+        hh: translator.translate,
+        d: 'dan',
+        dd: translator.translate,
+        M: 'mjesec',
+        MM: translator.translate,
+        y: 'godinu',
+        yy: translator.translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/mi.js b/backend/node_modules/moment/dist/locale/mi.js
new file mode 100644
index 0000000..635a56a
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/mi.js
@@ -0,0 +1,60 @@
+//! moment.js locale configuration
+//! locale : Maori [mi]
+//! author : John Corrigan <robbiecloset@gmail.com> : https://github.com/johnideal
+
+import moment from '../moment';
+
+export default moment.defineLocale('mi', {
+    months: 'Kohi-tāte_Hui-tanguru_Poutū-te-rangi_Paenga-whāwhā_Haratua_Pipiri_Hōngoingoi_Here-turi-kōkā_Mahuru_Whiringa-ā-nuku_Whiringa-ā-rangi_Hakihea'.split(
+        '_'
+    ),
+    monthsShort:
+        'Kohi_Hui_Pou_Pae_Hara_Pipi_Hōngoi_Here_Mahu_Whi-nu_Whi-ra_Haki'.split(
+            '_'
+        ),
+    monthsRegex: /(?:['a-z\u0101\u014D\u016B]+\-?){1,3}/i,
+    monthsStrictRegex: /(?:['a-z\u0101\u014D\u016B]+\-?){1,3}/i,
+    monthsShortRegex: /(?:['a-z\u0101\u014D\u016B]+\-?){1,3}/i,
+    monthsShortStrictRegex: /(?:['a-z\u0101\u014D\u016B]+\-?){1,2}/i,
+    weekdays: 'Rātapu_Mane_Tūrei_Wenerei_Tāite_Paraire_Hātarei'.split('_'),
+    weekdaysShort: 'Ta_Ma_Tū_We_Tāi_Pa_Hā'.split('_'),
+    weekdaysMin: 'Ta_Ma_Tū_We_Tāi_Pa_Hā'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY [i] HH:mm',
+        LLLL: 'dddd, D MMMM YYYY [i] HH:mm',
+    },
+    calendar: {
+        sameDay: '[i teie mahana, i] LT',
+        nextDay: '[apopo i] LT',
+        nextWeek: 'dddd [i] LT',
+        lastDay: '[inanahi i] LT',
+        lastWeek: 'dddd [whakamutunga i] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'i roto i %s',
+        past: '%s i mua',
+        s: 'te hēkona ruarua',
+        ss: '%d hēkona',
+        m: 'he meneti',
+        mm: '%d meneti',
+        h: 'te haora',
+        hh: '%d haora',
+        d: 'he ra',
+        dd: '%d ra',
+        M: 'he marama',
+        MM: '%d marama',
+        y: 'he tau',
+        yy: '%d tau',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}º/,
+    ordinal: '%dº',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/mk.js b/backend/node_modules/moment/dist/locale/mk.js
new file mode 100644
index 0000000..f3ecad7
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/mk.js
@@ -0,0 +1,85 @@
+//! moment.js locale configuration
+//! locale : Macedonian [mk]
+//! author : Borislav Mickov : https://github.com/B0k0
+//! author : Sashko Todorov : https://github.com/bkyceh
+import moment from '../moment';
+
+export default moment.defineLocale('mk', {
+    months: 'јануари_февруари_март_април_мај_јуни_јули_август_септември_октомври_ноември_декември'.split(
+        '_'
+    ),
+    monthsShort: 'јан_фев_мар_апр_мај_јун_јул_авг_сеп_окт_ное_дек'.split('_'),
+    weekdays: 'недела_понеделник_вторник_среда_четврток_петок_сабота'.split(
+        '_'
+    ),
+    weekdaysShort: 'нед_пон_вто_сре_чет_пет_саб'.split('_'),
+    weekdaysMin: 'нe_пo_вт_ср_че_пе_сa'.split('_'),
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'D.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY H:mm',
+        LLLL: 'dddd, D MMMM YYYY H:mm',
+    },
+    calendar: {
+        sameDay: '[Денес во] LT',
+        nextDay: '[Утре во] LT',
+        nextWeek: '[Во] dddd [во] LT',
+        lastDay: '[Вчера во] LT',
+        lastWeek: function () {
+            switch (this.day()) {
+                case 0:
+                case 3:
+                case 6:
+                    return '[Изминатата] dddd [во] LT';
+                case 1:
+                case 2:
+                case 4:
+                case 5:
+                    return '[Изминатиот] dddd [во] LT';
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'за %s',
+        past: 'пред %s',
+        s: 'неколку секунди',
+        ss: '%d секунди',
+        m: 'една минута',
+        mm: '%d минути',
+        h: 'еден час',
+        hh: '%d часа',
+        d: 'еден ден',
+        dd: '%d дена',
+        M: 'еден месец',
+        MM: '%d месеци',
+        y: 'една година',
+        yy: '%d години',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}-(ев|ен|ти|ви|ри|ми)/,
+    ordinal: function (number) {
+        var lastDigit = number % 10,
+            last2Digits = number % 100;
+        if (number === 0) {
+            return number + '-ев';
+        } else if (last2Digits === 0) {
+            return number + '-ен';
+        } else if (last2Digits > 10 && last2Digits < 20) {
+            return number + '-ти';
+        } else if (lastDigit === 1) {
+            return number + '-ви';
+        } else if (lastDigit === 2) {
+            return number + '-ри';
+        } else if (lastDigit === 7 || lastDigit === 8) {
+            return number + '-ми';
+        } else {
+            return number + '-ти';
+        }
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ml.js b/backend/node_modules/moment/dist/locale/ml.js
new file mode 100644
index 0000000..5df6ae4
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ml.js
@@ -0,0 +1,82 @@
+//! moment.js locale configuration
+//! locale : Malayalam [ml]
+//! author : Floyd Pink : https://github.com/floydpink
+
+import moment from '../moment';
+
+export default moment.defineLocale('ml', {
+    months: 'ജനുവരി_ഫെബ്രുവരി_മാർച്ച്_ഏപ്രിൽ_മേയ്_ജൂൺ_ജൂലൈ_ഓഗസ്റ്റ്_സെപ്റ്റംബർ_ഒക്ടോബർ_നവംബർ_ഡിസംബർ'.split(
+        '_'
+    ),
+    monthsShort:
+        'ജനു._ഫെബ്രു._മാർ._ഏപ്രി._മേയ്_ജൂൺ_ജൂലൈ._ഓഗ._സെപ്റ്റ._ഒക്ടോ._നവം._ഡിസം.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays:
+        'ഞായറാഴ്ച_തിങ്കളാഴ്ച_ചൊവ്വാഴ്ച_ബുധനാഴ്ച_വ്യാഴാഴ്ച_വെള്ളിയാഴ്ച_ശനിയാഴ്ച'.split(
+            '_'
+        ),
+    weekdaysShort: 'ഞായർ_തിങ്കൾ_ചൊവ്വ_ബുധൻ_വ്യാഴം_വെള്ളി_ശനി'.split('_'),
+    weekdaysMin: 'ഞാ_തി_ചൊ_ബു_വ്യാ_വെ_ശ'.split('_'),
+    longDateFormat: {
+        LT: 'A h:mm -നു',
+        LTS: 'A h:mm:ss -നു',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY, A h:mm -നു',
+        LLLL: 'dddd, D MMMM YYYY, A h:mm -നു',
+    },
+    calendar: {
+        sameDay: '[ഇന്ന്] LT',
+        nextDay: '[നാളെ] LT',
+        nextWeek: 'dddd, LT',
+        lastDay: '[ഇന്നലെ] LT',
+        lastWeek: '[കഴിഞ്ഞ] dddd, LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s കഴിഞ്ഞ്',
+        past: '%s മുൻപ്',
+        s: 'അൽപ നിമിഷങ്ങൾ',
+        ss: '%d സെക്കൻഡ്',
+        m: 'ഒരു മിനിറ്റ്',
+        mm: '%d മിനിറ്റ്',
+        h: 'ഒരു മണിക്കൂർ',
+        hh: '%d മണിക്കൂർ',
+        d: 'ഒരു ദിവസം',
+        dd: '%d ദിവസം',
+        M: 'ഒരു മാസം',
+        MM: '%d മാസം',
+        y: 'ഒരു വർഷം',
+        yy: '%d വർഷം',
+    },
+    meridiemParse: /രാത്രി|രാവിലെ|ഉച്ച കഴിഞ്ഞ്|വൈകുന്നേരം|രാത്രി/i,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (
+            (meridiem === 'രാത്രി' && hour >= 4) ||
+            meridiem === 'ഉച്ച കഴിഞ്ഞ്' ||
+            meridiem === 'വൈകുന്നേരം'
+        ) {
+            return hour + 12;
+        } else {
+            return hour;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'രാത്രി';
+        } else if (hour < 12) {
+            return 'രാവിലെ';
+        } else if (hour < 17) {
+            return 'ഉച്ച കഴിഞ്ഞ്';
+        } else if (hour < 20) {
+            return 'വൈകുന്നേരം';
+        } else {
+            return 'രാത്രി';
+        }
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/mn.js b/backend/node_modules/moment/dist/locale/mn.js
new file mode 100644
index 0000000..36cf69f
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/mn.js
@@ -0,0 +1,100 @@
+//! moment.js locale configuration
+//! locale : Mongolian [mn]
+//! author : Javkhlantugs Nyamdorj : https://github.com/javkhaanj7
+
+import moment from '../moment';
+
+function translate(number, withoutSuffix, key, isFuture) {
+    switch (key) {
+        case 's':
+            return withoutSuffix ? 'хэдхэн секунд' : 'хэдхэн секундын';
+        case 'ss':
+            return number + (withoutSuffix ? ' секунд' : ' секундын');
+        case 'm':
+        case 'mm':
+            return number + (withoutSuffix ? ' минут' : ' минутын');
+        case 'h':
+        case 'hh':
+            return number + (withoutSuffix ? ' цаг' : ' цагийн');
+        case 'd':
+        case 'dd':
+            return number + (withoutSuffix ? ' өдөр' : ' өдрийн');
+        case 'M':
+        case 'MM':
+            return number + (withoutSuffix ? ' сар' : ' сарын');
+        case 'y':
+        case 'yy':
+            return number + (withoutSuffix ? ' жил' : ' жилийн');
+        default:
+            return number;
+    }
+}
+
+export default moment.defineLocale('mn', {
+    months: 'Нэгдүгээр сар_Хоёрдугаар сар_Гуравдугаар сар_Дөрөвдүгээр сар_Тавдугаар сар_Зургадугаар сар_Долдугаар сар_Наймдугаар сар_Есдүгээр сар_Аравдугаар сар_Арван нэгдүгээр сар_Арван хоёрдугаар сар'.split(
+        '_'
+    ),
+    monthsShort:
+        '1 сар_2 сар_3 сар_4 сар_5 сар_6 сар_7 сар_8 сар_9 сар_10 сар_11 сар_12 сар'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'Ням_Даваа_Мягмар_Лхагва_Пүрэв_Баасан_Бямба'.split('_'),
+    weekdaysShort: 'Ням_Дав_Мяг_Лха_Пүр_Баа_Бям'.split('_'),
+    weekdaysMin: 'Ня_Да_Мя_Лх_Пү_Ба_Бя'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'YYYY-MM-DD',
+        LL: 'YYYY оны MMMMын D',
+        LLL: 'YYYY оны MMMMын D HH:mm',
+        LLLL: 'dddd, YYYY оны MMMMын D HH:mm',
+    },
+    meridiemParse: /ҮӨ|ҮХ/i,
+    isPM: function (input) {
+        return input === 'ҮХ';
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'ҮӨ';
+        } else {
+            return 'ҮХ';
+        }
+    },
+    calendar: {
+        sameDay: '[Өнөөдөр] LT',
+        nextDay: '[Маргааш] LT',
+        nextWeek: '[Ирэх] dddd LT',
+        lastDay: '[Өчигдөр] LT',
+        lastWeek: '[Өнгөрсөн] dddd LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s дараа',
+        past: '%s өмнө',
+        s: translate,
+        ss: translate,
+        m: translate,
+        mm: translate,
+        h: translate,
+        hh: translate,
+        d: translate,
+        dd: translate,
+        M: translate,
+        MM: translate,
+        y: translate,
+        yy: translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2} өдөр/,
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'd':
+            case 'D':
+            case 'DDD':
+                return number + ' өдөр';
+            default:
+                return number;
+        }
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/mr.js b/backend/node_modules/moment/dist/locale/mr.js
new file mode 100644
index 0000000..d174909
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/mr.js
@@ -0,0 +1,203 @@
+//! moment.js locale configuration
+//! locale : Marathi [mr]
+//! author : Harshad Kale : https://github.com/kalehv
+//! author : Vivek Athalye : https://github.com/vnathalye
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '१',
+        2: '२',
+        3: '३',
+        4: '४',
+        5: '५',
+        6: '६',
+        7: '७',
+        8: '८',
+        9: '९',
+        0: '०',
+    },
+    numberMap = {
+        '१': '1',
+        '२': '2',
+        '३': '3',
+        '४': '4',
+        '५': '5',
+        '६': '6',
+        '७': '7',
+        '८': '8',
+        '९': '9',
+        '०': '0',
+    };
+
+function relativeTimeMr(number, withoutSuffix, string, isFuture) {
+    var output = '';
+    if (withoutSuffix) {
+        switch (string) {
+            case 's':
+                output = 'काही सेकंद';
+                break;
+            case 'ss':
+                output = '%d सेकंद';
+                break;
+            case 'm':
+                output = 'एक मिनिट';
+                break;
+            case 'mm':
+                output = '%d मिनिटे';
+                break;
+            case 'h':
+                output = 'एक तास';
+                break;
+            case 'hh':
+                output = '%d तास';
+                break;
+            case 'd':
+                output = 'एक दिवस';
+                break;
+            case 'dd':
+                output = '%d दिवस';
+                break;
+            case 'M':
+                output = 'एक महिना';
+                break;
+            case 'MM':
+                output = '%d महिने';
+                break;
+            case 'y':
+                output = 'एक वर्ष';
+                break;
+            case 'yy':
+                output = '%d वर्षे';
+                break;
+        }
+    } else {
+        switch (string) {
+            case 's':
+                output = 'काही सेकंदां';
+                break;
+            case 'ss':
+                output = '%d सेकंदां';
+                break;
+            case 'm':
+                output = 'एका मिनिटा';
+                break;
+            case 'mm':
+                output = '%d मिनिटां';
+                break;
+            case 'h':
+                output = 'एका तासा';
+                break;
+            case 'hh':
+                output = '%d तासां';
+                break;
+            case 'd':
+                output = 'एका दिवसा';
+                break;
+            case 'dd':
+                output = '%d दिवसां';
+                break;
+            case 'M':
+                output = 'एका महिन्या';
+                break;
+            case 'MM':
+                output = '%d महिन्यां';
+                break;
+            case 'y':
+                output = 'एका वर्षा';
+                break;
+            case 'yy':
+                output = '%d वर्षां';
+                break;
+        }
+    }
+    return output.replace(/%d/i, number);
+}
+
+export default moment.defineLocale('mr', {
+    months: 'जानेवारी_फेब्रुवारी_मार्च_एप्रिल_मे_जून_जुलै_ऑगस्ट_सप्टेंबर_ऑक्टोबर_नोव्हेंबर_डिसेंबर'.split(
+        '_'
+    ),
+    monthsShort:
+        'जाने._फेब्रु._मार्च._एप्रि._मे._जून._जुलै._ऑग._सप्टें._ऑक्टो._नोव्हें._डिसें.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'रविवार_सोमवार_मंगळवार_बुधवार_गुरूवार_शुक्रवार_शनिवार'.split('_'),
+    weekdaysShort: 'रवि_सोम_मंगळ_बुध_गुरू_शुक्र_शनि'.split('_'),
+    weekdaysMin: 'र_सो_मं_बु_गु_शु_श'.split('_'),
+    longDateFormat: {
+        LT: 'A h:mm वाजता',
+        LTS: 'A h:mm:ss वाजता',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY, A h:mm वाजता',
+        LLLL: 'dddd, D MMMM YYYY, A h:mm वाजता',
+    },
+    calendar: {
+        sameDay: '[आज] LT',
+        nextDay: '[उद्या] LT',
+        nextWeek: 'dddd, LT',
+        lastDay: '[काल] LT',
+        lastWeek: '[मागील] dddd, LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%sमध्ये',
+        past: '%sपूर्वी',
+        s: relativeTimeMr,
+        ss: relativeTimeMr,
+        m: relativeTimeMr,
+        mm: relativeTimeMr,
+        h: relativeTimeMr,
+        hh: relativeTimeMr,
+        d: relativeTimeMr,
+        dd: relativeTimeMr,
+        M: relativeTimeMr,
+        MM: relativeTimeMr,
+        y: relativeTimeMr,
+        yy: relativeTimeMr,
+    },
+    preparse: function (string) {
+        return string.replace(/[१२३४५६७८९०]/g, function (match) {
+            return numberMap[match];
+        });
+    },
+    postformat: function (string) {
+        return string.replace(/\d/g, function (match) {
+            return symbolMap[match];
+        });
+    },
+    meridiemParse: /पहाटे|सकाळी|दुपारी|सायंकाळी|रात्री/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'पहाटे' || meridiem === 'सकाळी') {
+            return hour;
+        } else if (
+            meridiem === 'दुपारी' ||
+            meridiem === 'सायंकाळी' ||
+            meridiem === 'रात्री'
+        ) {
+            return hour >= 12 ? hour : hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour >= 0 && hour < 6) {
+            return 'पहाटे';
+        } else if (hour < 12) {
+            return 'सकाळी';
+        } else if (hour < 17) {
+            return 'दुपारी';
+        } else if (hour < 20) {
+            return 'सायंकाळी';
+        } else {
+            return 'रात्री';
+        }
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ms-my.js b/backend/node_modules/moment/dist/locale/ms-my.js
new file mode 100644
index 0000000..f8adf98
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ms-my.js
@@ -0,0 +1,76 @@
+//! moment.js locale configuration
+//! locale : Malay [ms-my]
+//! note : DEPRECATED, the correct one is [ms]
+//! author : Weldan Jamili : https://github.com/weldan
+
+import moment from '../moment';
+
+export default moment.defineLocale('ms-my', {
+    months: 'Januari_Februari_Mac_April_Mei_Jun_Julai_Ogos_September_Oktober_November_Disember'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mac_Apr_Mei_Jun_Jul_Ogs_Sep_Okt_Nov_Dis'.split('_'),
+    weekdays: 'Ahad_Isnin_Selasa_Rabu_Khamis_Jumaat_Sabtu'.split('_'),
+    weekdaysShort: 'Ahd_Isn_Sel_Rab_Kha_Jum_Sab'.split('_'),
+    weekdaysMin: 'Ah_Is_Sl_Rb_Km_Jm_Sb'.split('_'),
+    longDateFormat: {
+        LT: 'HH.mm',
+        LTS: 'HH.mm.ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY [pukul] HH.mm',
+        LLLL: 'dddd, D MMMM YYYY [pukul] HH.mm',
+    },
+    meridiemParse: /pagi|tengahari|petang|malam/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'pagi') {
+            return hour;
+        } else if (meridiem === 'tengahari') {
+            return hour >= 11 ? hour : hour + 12;
+        } else if (meridiem === 'petang' || meridiem === 'malam') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hours, minutes, isLower) {
+        if (hours < 11) {
+            return 'pagi';
+        } else if (hours < 15) {
+            return 'tengahari';
+        } else if (hours < 19) {
+            return 'petang';
+        } else {
+            return 'malam';
+        }
+    },
+    calendar: {
+        sameDay: '[Hari ini pukul] LT',
+        nextDay: '[Esok pukul] LT',
+        nextWeek: 'dddd [pukul] LT',
+        lastDay: '[Kelmarin pukul] LT',
+        lastWeek: 'dddd [lepas pukul] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'dalam %s',
+        past: '%s yang lepas',
+        s: 'beberapa saat',
+        ss: '%d saat',
+        m: 'seminit',
+        mm: '%d minit',
+        h: 'sejam',
+        hh: '%d jam',
+        d: 'sehari',
+        dd: '%d hari',
+        M: 'sebulan',
+        MM: '%d bulan',
+        y: 'setahun',
+        yy: '%d tahun',
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ms.js b/backend/node_modules/moment/dist/locale/ms.js
new file mode 100644
index 0000000..335cc90
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ms.js
@@ -0,0 +1,75 @@
+//! moment.js locale configuration
+//! locale : Malay [ms]
+//! author : Weldan Jamili : https://github.com/weldan
+
+import moment from '../moment';
+
+export default moment.defineLocale('ms', {
+    months: 'Januari_Februari_Mac_April_Mei_Jun_Julai_Ogos_September_Oktober_November_Disember'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mac_Apr_Mei_Jun_Jul_Ogs_Sep_Okt_Nov_Dis'.split('_'),
+    weekdays: 'Ahad_Isnin_Selasa_Rabu_Khamis_Jumaat_Sabtu'.split('_'),
+    weekdaysShort: 'Ahd_Isn_Sel_Rab_Kha_Jum_Sab'.split('_'),
+    weekdaysMin: 'Ah_Is_Sl_Rb_Km_Jm_Sb'.split('_'),
+    longDateFormat: {
+        LT: 'HH.mm',
+        LTS: 'HH.mm.ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY [pukul] HH.mm',
+        LLLL: 'dddd, D MMMM YYYY [pukul] HH.mm',
+    },
+    meridiemParse: /pagi|tengahari|petang|malam/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'pagi') {
+            return hour;
+        } else if (meridiem === 'tengahari') {
+            return hour >= 11 ? hour : hour + 12;
+        } else if (meridiem === 'petang' || meridiem === 'malam') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hours, minutes, isLower) {
+        if (hours < 11) {
+            return 'pagi';
+        } else if (hours < 15) {
+            return 'tengahari';
+        } else if (hours < 19) {
+            return 'petang';
+        } else {
+            return 'malam';
+        }
+    },
+    calendar: {
+        sameDay: '[Hari ini pukul] LT',
+        nextDay: '[Esok pukul] LT',
+        nextWeek: 'dddd [pukul] LT',
+        lastDay: '[Kelmarin pukul] LT',
+        lastWeek: 'dddd [lepas pukul] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'dalam %s',
+        past: '%s yang lepas',
+        s: 'beberapa saat',
+        ss: '%d saat',
+        m: 'seminit',
+        mm: '%d minit',
+        h: 'sejam',
+        hh: '%d jam',
+        d: 'sehari',
+        dd: '%d hari',
+        M: 'sebulan',
+        MM: '%d bulan',
+        y: 'setahun',
+        yy: '%d tahun',
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/mt.js b/backend/node_modules/moment/dist/locale/mt.js
new file mode 100644
index 0000000..850cf6a
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/mt.js
@@ -0,0 +1,56 @@
+//! moment.js locale configuration
+//! locale : Maltese (Malta) [mt]
+//! author : Alessandro Maruccia : https://github.com/alesma
+
+import moment from '../moment';
+
+export default moment.defineLocale('mt', {
+    months: 'Jannar_Frar_Marzu_April_Mejju_Ġunju_Lulju_Awwissu_Settembru_Ottubru_Novembru_Diċembru'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Fra_Mar_Apr_Mej_Ġun_Lul_Aww_Set_Ott_Nov_Diċ'.split('_'),
+    weekdays:
+        'Il-Ħadd_It-Tnejn_It-Tlieta_L-Erbgħa_Il-Ħamis_Il-Ġimgħa_Is-Sibt'.split(
+            '_'
+        ),
+    weekdaysShort: 'Ħad_Tne_Tli_Erb_Ħam_Ġim_Sib'.split('_'),
+    weekdaysMin: 'Ħa_Tn_Tl_Er_Ħa_Ġi_Si'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Illum fil-]LT',
+        nextDay: '[Għada fil-]LT',
+        nextWeek: 'dddd [fil-]LT',
+        lastDay: '[Il-bieraħ fil-]LT',
+        lastWeek: 'dddd [li għadda] [fil-]LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'f’ %s',
+        past: '%s ilu',
+        s: 'ftit sekondi',
+        ss: '%d sekondi',
+        m: 'minuta',
+        mm: '%d minuti',
+        h: 'siegħa',
+        hh: '%d siegħat',
+        d: 'ġurnata',
+        dd: '%d ġranet',
+        M: 'xahar',
+        MM: '%d xhur',
+        y: 'sena',
+        yy: '%d sni',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}º/,
+    ordinal: '%dº',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/my.js b/backend/node_modules/moment/dist/locale/my.js
new file mode 100644
index 0000000..034b221
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/my.js
@@ -0,0 +1,91 @@
+//! moment.js locale configuration
+//! locale : Burmese [my]
+//! author : Squar team, mysquar.com
+//! author : David Rossellat : https://github.com/gholadr
+//! author : Tin Aung Lin : https://github.com/thanyawzinmin
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '၁',
+        2: '၂',
+        3: '၃',
+        4: '၄',
+        5: '၅',
+        6: '၆',
+        7: '၇',
+        8: '၈',
+        9: '၉',
+        0: '၀',
+    },
+    numberMap = {
+        '၁': '1',
+        '၂': '2',
+        '၃': '3',
+        '၄': '4',
+        '၅': '5',
+        '၆': '6',
+        '၇': '7',
+        '၈': '8',
+        '၉': '9',
+        '၀': '0',
+    };
+
+export default moment.defineLocale('my', {
+    months: 'ဇန်နဝါရီ_ဖေဖော်ဝါရီ_မတ်_ဧပြီ_မေ_ဇွန်_ဇူလိုင်_သြဂုတ်_စက်တင်ဘာ_အောက်တိုဘာ_နိုဝင်ဘာ_ဒီဇင်ဘာ'.split(
+        '_'
+    ),
+    monthsShort: 'ဇန်_ဖေ_မတ်_ပြီ_မေ_ဇွန်_လိုင်_သြ_စက်_အောက်_နို_ဒီ'.split('_'),
+    weekdays: 'တနင်္ဂနွေ_တနင်္လာ_အင်္ဂါ_ဗုဒ္ဓဟူး_ကြာသပတေး_သောကြာ_စနေ'.split(
+        '_'
+    ),
+    weekdaysShort: 'နွေ_လာ_ဂါ_ဟူး_ကြာ_သော_နေ'.split('_'),
+    weekdaysMin: 'နွေ_လာ_ဂါ_ဟူး_ကြာ_သော_နေ'.split('_'),
+
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[ယနေ.] LT [မှာ]',
+        nextDay: '[မနက်ဖြန်] LT [မှာ]',
+        nextWeek: 'dddd LT [မှာ]',
+        lastDay: '[မနေ.က] LT [မှာ]',
+        lastWeek: '[ပြီးခဲ့သော] dddd LT [မှာ]',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'လာမည့် %s မှာ',
+        past: 'လွန်ခဲ့သော %s က',
+        s: 'စက္ကန်.အနည်းငယ်',
+        ss: '%d စက္ကန့်',
+        m: 'တစ်မိနစ်',
+        mm: '%d မိနစ်',
+        h: 'တစ်နာရီ',
+        hh: '%d နာရီ',
+        d: 'တစ်ရက်',
+        dd: '%d ရက်',
+        M: 'တစ်လ',
+        MM: '%d လ',
+        y: 'တစ်နှစ်',
+        yy: '%d နှစ်',
+    },
+    preparse: function (string) {
+        return string.replace(/[၁၂၃၄၅၆၇၈၉၀]/g, function (match) {
+            return numberMap[match];
+        });
+    },
+    postformat: function (string) {
+        return string.replace(/\d/g, function (match) {
+            return symbolMap[match];
+        });
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/nb.js b/backend/node_modules/moment/dist/locale/nb.js
new file mode 100644
index 0000000..cce3aaa
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/nb.js
@@ -0,0 +1,60 @@
+//! moment.js locale configuration
+//! locale : Norwegian Bokmål [nb]
+//! authors : Espen Hovlandsdal : https://github.com/rexxars
+//!           Sigurd Gartmann : https://github.com/sigurdga
+//!           Stephen Ramthun : https://github.com/stephenramthun
+
+import moment from '../moment';
+
+export default moment.defineLocale('nb', {
+    months: 'januar_februar_mars_april_mai_juni_juli_august_september_oktober_november_desember'.split(
+        '_'
+    ),
+    monthsShort:
+        'jan._feb._mars_apr._mai_juni_juli_aug._sep._okt._nov._des.'.split('_'),
+    monthsParseExact: true,
+    weekdays: 'søndag_mandag_tirsdag_onsdag_torsdag_fredag_lørdag'.split('_'),
+    weekdaysShort: 'sø._ma._ti._on._to._fr._lø.'.split('_'),
+    weekdaysMin: 'sø_ma_ti_on_to_fr_lø'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY [kl.] HH:mm',
+        LLLL: 'dddd D. MMMM YYYY [kl.] HH:mm',
+    },
+    calendar: {
+        sameDay: '[i dag kl.] LT',
+        nextDay: '[i morgen kl.] LT',
+        nextWeek: 'dddd [kl.] LT',
+        lastDay: '[i går kl.] LT',
+        lastWeek: '[forrige] dddd [kl.] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'om %s',
+        past: '%s siden',
+        s: 'noen sekunder',
+        ss: '%d sekunder',
+        m: 'ett minutt',
+        mm: '%d minutter',
+        h: 'én time',
+        hh: '%d timer',
+        d: 'én dag',
+        dd: '%d dager',
+        w: 'én uke',
+        ww: '%d uker',
+        M: 'én måned',
+        MM: '%d måneder',
+        y: 'ett år',
+        yy: '%d år',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ne.js b/backend/node_modules/moment/dist/locale/ne.js
new file mode 100644
index 0000000..1f0a0ed
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ne.js
@@ -0,0 +1,121 @@
+//! moment.js locale configuration
+//! locale : Nepalese [ne]
+//! author : suvash : https://github.com/suvash
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '१',
+        2: '२',
+        3: '३',
+        4: '४',
+        5: '५',
+        6: '६',
+        7: '७',
+        8: '८',
+        9: '९',
+        0: '०',
+    },
+    numberMap = {
+        '१': '1',
+        '२': '2',
+        '३': '3',
+        '४': '4',
+        '५': '5',
+        '६': '6',
+        '७': '7',
+        '८': '8',
+        '९': '9',
+        '०': '0',
+    };
+
+export default moment.defineLocale('ne', {
+    months: 'जनवरी_फेब्रुवरी_मार्च_अप्रिल_मई_जुन_जुलाई_अगष्ट_सेप्टेम्बर_अक्टोबर_नोभेम्बर_डिसेम्बर'.split(
+        '_'
+    ),
+    monthsShort:
+        'जन._फेब्रु._मार्च_अप्रि._मई_जुन_जुलाई._अग._सेप्ट._अक्टो._नोभे._डिसे.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'आइतबार_सोमबार_मङ्गलबार_बुधबार_बिहिबार_शुक्रबार_शनिबार'.split(
+        '_'
+    ),
+    weekdaysShort: 'आइत._सोम._मङ्गल._बुध._बिहि._शुक्र._शनि.'.split('_'),
+    weekdaysMin: 'आ._सो._मं._बु._बि._शु._श.'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'Aको h:mm बजे',
+        LTS: 'Aको h:mm:ss बजे',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY, Aको h:mm बजे',
+        LLLL: 'dddd, D MMMM YYYY, Aको h:mm बजे',
+    },
+    preparse: function (string) {
+        return string.replace(/[१२३४५६७८९०]/g, function (match) {
+            return numberMap[match];
+        });
+    },
+    postformat: function (string) {
+        return string.replace(/\d/g, function (match) {
+            return symbolMap[match];
+        });
+    },
+    meridiemParse: /राति|बिहान|दिउँसो|साँझ/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'राति') {
+            return hour < 4 ? hour : hour + 12;
+        } else if (meridiem === 'बिहान') {
+            return hour;
+        } else if (meridiem === 'दिउँसो') {
+            return hour >= 10 ? hour : hour + 12;
+        } else if (meridiem === 'साँझ') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 3) {
+            return 'राति';
+        } else if (hour < 12) {
+            return 'बिहान';
+        } else if (hour < 16) {
+            return 'दिउँसो';
+        } else if (hour < 20) {
+            return 'साँझ';
+        } else {
+            return 'राति';
+        }
+    },
+    calendar: {
+        sameDay: '[आज] LT',
+        nextDay: '[भोलि] LT',
+        nextWeek: '[आउँदो] dddd[,] LT',
+        lastDay: '[हिजो] LT',
+        lastWeek: '[गएको] dddd[,] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%sमा',
+        past: '%s अगाडि',
+        s: 'केही क्षण',
+        ss: '%d सेकेण्ड',
+        m: 'एक मिनेट',
+        mm: '%d मिनेट',
+        h: 'एक घण्टा',
+        hh: '%d घण्टा',
+        d: 'एक दिन',
+        dd: '%d दिन',
+        M: 'एक महिना',
+        MM: '%d महिना',
+        y: 'एक बर्ष',
+        yy: '%d बर्ष',
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/nl-be.js b/backend/node_modules/moment/dist/locale/nl-be.js
new file mode 100644
index 0000000..e495ff1
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/nl-be.js
@@ -0,0 +1,102 @@
+//! moment.js locale configuration
+//! locale : Dutch (Belgium) [nl-be]
+//! author : Joris Röling : https://github.com/jorisroling
+//! author : Jacob Middag : https://github.com/middagj
+
+import moment from '../moment';
+
+var monthsShortWithDots =
+        'jan._feb._mrt._apr._mei_jun._jul._aug._sep._okt._nov._dec.'.split('_'),
+    monthsShortWithoutDots =
+        'jan_feb_mrt_apr_mei_jun_jul_aug_sep_okt_nov_dec'.split('_'),
+    monthsParse = [
+        /^jan/i,
+        /^feb/i,
+        /^(maart|mrt\.?)$/i,
+        /^apr/i,
+        /^mei$/i,
+        /^jun[i.]?$/i,
+        /^jul[i.]?$/i,
+        /^aug/i,
+        /^sep/i,
+        /^okt/i,
+        /^nov/i,
+        /^dec/i,
+    ],
+    monthsRegex =
+        /^(januari|februari|maart|april|mei|ju[nl]i|augustus|september|oktober|november|december|jan\.?|feb\.?|mrt\.?|apr\.?|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i;
+
+export default moment.defineLocale('nl-be', {
+    months: 'januari_februari_maart_april_mei_juni_juli_augustus_september_oktober_november_december'.split(
+        '_'
+    ),
+    monthsShort: function (m, format) {
+        if (!m) {
+            return monthsShortWithDots;
+        } else if (/-MMM-/.test(format)) {
+            return monthsShortWithoutDots[m.month()];
+        } else {
+            return monthsShortWithDots[m.month()];
+        }
+    },
+
+    monthsRegex: monthsRegex,
+    monthsShortRegex: monthsRegex,
+    monthsStrictRegex:
+        /^(januari|februari|maart|april|mei|ju[nl]i|augustus|september|oktober|november|december)/i,
+    monthsShortStrictRegex:
+        /^(jan\.?|feb\.?|mrt\.?|apr\.?|mei|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i,
+
+    monthsParse: monthsParse,
+    longMonthsParse: monthsParse,
+    shortMonthsParse: monthsParse,
+
+    weekdays:
+        'zondag_maandag_dinsdag_woensdag_donderdag_vrijdag_zaterdag'.split('_'),
+    weekdaysShort: 'zo._ma._di._wo._do._vr._za.'.split('_'),
+    weekdaysMin: 'zo_ma_di_wo_do_vr_za'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[vandaag om] LT',
+        nextDay: '[morgen om] LT',
+        nextWeek: 'dddd [om] LT',
+        lastDay: '[gisteren om] LT',
+        lastWeek: '[afgelopen] dddd [om] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'over %s',
+        past: '%s geleden',
+        s: 'een paar seconden',
+        ss: '%d seconden',
+        m: 'één minuut',
+        mm: '%d minuten',
+        h: 'één uur',
+        hh: '%d uur',
+        d: 'één dag',
+        dd: '%d dagen',
+        M: 'één maand',
+        MM: '%d maanden',
+        y: 'één jaar',
+        yy: '%d jaar',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
+    ordinal: function (number) {
+        return (
+            number +
+            (number === 1 || number === 8 || number >= 20 ? 'ste' : 'de')
+        );
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/nl.js b/backend/node_modules/moment/dist/locale/nl.js
new file mode 100644
index 0000000..b6d83c3
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/nl.js
@@ -0,0 +1,104 @@
+//! moment.js locale configuration
+//! locale : Dutch [nl]
+//! author : Joris Röling : https://github.com/jorisroling
+//! author : Jacob Middag : https://github.com/middagj
+
+import moment from '../moment';
+
+var monthsShortWithDots =
+        'jan._feb._mrt._apr._mei_jun._jul._aug._sep._okt._nov._dec.'.split('_'),
+    monthsShortWithoutDots =
+        'jan_feb_mrt_apr_mei_jun_jul_aug_sep_okt_nov_dec'.split('_'),
+    monthsParse = [
+        /^jan/i,
+        /^feb/i,
+        /^(maart|mrt\.?)$/i,
+        /^apr/i,
+        /^mei$/i,
+        /^jun[i.]?$/i,
+        /^jul[i.]?$/i,
+        /^aug/i,
+        /^sep/i,
+        /^okt/i,
+        /^nov/i,
+        /^dec/i,
+    ],
+    monthsRegex =
+        /^(januari|februari|maart|april|mei|ju[nl]i|augustus|september|oktober|november|december|jan\.?|feb\.?|mrt\.?|apr\.?|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i;
+
+export default moment.defineLocale('nl', {
+    months: 'januari_februari_maart_april_mei_juni_juli_augustus_september_oktober_november_december'.split(
+        '_'
+    ),
+    monthsShort: function (m, format) {
+        if (!m) {
+            return monthsShortWithDots;
+        } else if (/-MMM-/.test(format)) {
+            return monthsShortWithoutDots[m.month()];
+        } else {
+            return monthsShortWithDots[m.month()];
+        }
+    },
+
+    monthsRegex: monthsRegex,
+    monthsShortRegex: monthsRegex,
+    monthsStrictRegex:
+        /^(januari|februari|maart|april|mei|ju[nl]i|augustus|september|oktober|november|december)/i,
+    monthsShortStrictRegex:
+        /^(jan\.?|feb\.?|mrt\.?|apr\.?|mei|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i,
+
+    monthsParse: monthsParse,
+    longMonthsParse: monthsParse,
+    shortMonthsParse: monthsParse,
+
+    weekdays:
+        'zondag_maandag_dinsdag_woensdag_donderdag_vrijdag_zaterdag'.split('_'),
+    weekdaysShort: 'zo._ma._di._wo._do._vr._za.'.split('_'),
+    weekdaysMin: 'zo_ma_di_wo_do_vr_za'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD-MM-YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[vandaag om] LT',
+        nextDay: '[morgen om] LT',
+        nextWeek: 'dddd [om] LT',
+        lastDay: '[gisteren om] LT',
+        lastWeek: '[afgelopen] dddd [om] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'over %s',
+        past: '%s geleden',
+        s: 'een paar seconden',
+        ss: '%d seconden',
+        m: 'één minuut',
+        mm: '%d minuten',
+        h: 'één uur',
+        hh: '%d uur',
+        d: 'één dag',
+        dd: '%d dagen',
+        w: 'één week',
+        ww: '%d weken',
+        M: 'één maand',
+        MM: '%d maanden',
+        y: 'één jaar',
+        yy: '%d jaar',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
+    ordinal: function (number) {
+        return (
+            number +
+            (number === 1 || number === 8 || number >= 20 ? 'ste' : 'de')
+        );
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/nn.js b/backend/node_modules/moment/dist/locale/nn.js
new file mode 100644
index 0000000..0da1150
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/nn.js
@@ -0,0 +1,59 @@
+//! moment.js locale configuration
+//! locale : Nynorsk [nn]
+//! authors : https://github.com/mechuwind
+//!           Stephen Ramthun : https://github.com/stephenramthun
+
+import moment from '../moment';
+
+export default moment.defineLocale('nn', {
+    months: 'januar_februar_mars_april_mai_juni_juli_august_september_oktober_november_desember'.split(
+        '_'
+    ),
+    monthsShort:
+        'jan._feb._mars_apr._mai_juni_juli_aug._sep._okt._nov._des.'.split('_'),
+    monthsParseExact: true,
+    weekdays: 'sundag_måndag_tysdag_onsdag_torsdag_fredag_laurdag'.split('_'),
+    weekdaysShort: 'su._må._ty._on._to._fr._lau.'.split('_'),
+    weekdaysMin: 'su_må_ty_on_to_fr_la'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY [kl.] H:mm',
+        LLLL: 'dddd D. MMMM YYYY [kl.] HH:mm',
+    },
+    calendar: {
+        sameDay: '[I dag klokka] LT',
+        nextDay: '[I morgon klokka] LT',
+        nextWeek: 'dddd [klokka] LT',
+        lastDay: '[I går klokka] LT',
+        lastWeek: '[Føregåande] dddd [klokka] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'om %s',
+        past: '%s sidan',
+        s: 'nokre sekund',
+        ss: '%d sekund',
+        m: 'eit minutt',
+        mm: '%d minutt',
+        h: 'ein time',
+        hh: '%d timar',
+        d: 'ein dag',
+        dd: '%d dagar',
+        w: 'ei veke',
+        ww: '%d veker',
+        M: 'ein månad',
+        MM: '%d månader',
+        y: 'eit år',
+        yy: '%d år',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/oc-lnc.js b/backend/node_modules/moment/dist/locale/oc-lnc.js
new file mode 100644
index 0000000..2e67d73
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/oc-lnc.js
@@ -0,0 +1,85 @@
+//! moment.js locale configuration
+//! locale : Occitan, lengadocian dialecte [oc-lnc]
+//! author : Quentin PAGÈS : https://github.com/Quenty31
+
+import moment from '../moment';
+
+export default moment.defineLocale('oc-lnc', {
+    months: {
+        standalone:
+            'genièr_febrièr_març_abril_mai_junh_julhet_agost_setembre_octòbre_novembre_decembre'.split(
+                '_'
+            ),
+        format: "de genièr_de febrièr_de març_d'abril_de mai_de junh_de julhet_d'agost_de setembre_d'octòbre_de novembre_de decembre".split(
+            '_'
+        ),
+        isFormat: /D[oD]?(\s)+MMMM/,
+    },
+    monthsShort:
+        'gen._febr._març_abr._mai_junh_julh._ago._set._oct._nov._dec.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'dimenge_diluns_dimars_dimècres_dijòus_divendres_dissabte'.split(
+        '_'
+    ),
+    weekdaysShort: 'dg._dl._dm._dc._dj._dv._ds.'.split('_'),
+    weekdaysMin: 'dg_dl_dm_dc_dj_dv_ds'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM [de] YYYY',
+        ll: 'D MMM YYYY',
+        LLL: 'D MMMM [de] YYYY [a] H:mm',
+        lll: 'D MMM YYYY, H:mm',
+        LLLL: 'dddd D MMMM [de] YYYY [a] H:mm',
+        llll: 'ddd D MMM YYYY, H:mm',
+    },
+    calendar: {
+        sameDay: '[uèi a] LT',
+        nextDay: '[deman a] LT',
+        nextWeek: 'dddd [a] LT',
+        lastDay: '[ièr a] LT',
+        lastWeek: 'dddd [passat a] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: "d'aquí %s",
+        past: 'fa %s',
+        s: 'unas segondas',
+        ss: '%d segondas',
+        m: 'una minuta',
+        mm: '%d minutas',
+        h: 'una ora',
+        hh: '%d oras',
+        d: 'un jorn',
+        dd: '%d jorns',
+        M: 'un mes',
+        MM: '%d meses',
+        y: 'un an',
+        yy: '%d ans',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(r|n|t|è|a)/,
+    ordinal: function (number, period) {
+        var output =
+            number === 1
+                ? 'r'
+                : number === 2
+                  ? 'n'
+                  : number === 3
+                    ? 'r'
+                    : number === 4
+                      ? 't'
+                      : 'è';
+        if (period === 'w' || period === 'W') {
+            output = 'a';
+        }
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4,
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/pa-in.js b/backend/node_modules/moment/dist/locale/pa-in.js
new file mode 100644
index 0000000..e39dbd5
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/pa-in.js
@@ -0,0 +1,122 @@
+//! moment.js locale configuration
+//! locale : Punjabi (India) [pa-in]
+//! author : Harpreet Singh : https://github.com/harpreetkhalsagtbit
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '੧',
+        2: '੨',
+        3: '੩',
+        4: '੪',
+        5: '੫',
+        6: '੬',
+        7: '੭',
+        8: '੮',
+        9: '੯',
+        0: '੦',
+    },
+    numberMap = {
+        '੧': '1',
+        '੨': '2',
+        '੩': '3',
+        '੪': '4',
+        '੫': '5',
+        '੬': '6',
+        '੭': '7',
+        '੮': '8',
+        '੯': '9',
+        '੦': '0',
+    };
+
+export default moment.defineLocale('pa-in', {
+    // There are months name as per Nanakshahi Calendar but they are not used as rigidly in modern Punjabi.
+    months: 'ਜਨਵਰੀ_ਫ਼ਰਵਰੀ_ਮਾਰਚ_ਅਪ੍ਰੈਲ_ਮਈ_ਜੂਨ_ਜੁਲਾਈ_ਅਗਸਤ_ਸਤੰਬਰ_ਅਕਤੂਬਰ_ਨਵੰਬਰ_ਦਸੰਬਰ'.split(
+        '_'
+    ),
+    monthsShort:
+        'ਜਨਵਰੀ_ਫ਼ਰਵਰੀ_ਮਾਰਚ_ਅਪ੍ਰੈਲ_ਮਈ_ਜੂਨ_ਜੁਲਾਈ_ਅਗਸਤ_ਸਤੰਬਰ_ਅਕਤੂਬਰ_ਨਵੰਬਰ_ਦਸੰਬਰ'.split(
+            '_'
+        ),
+    weekdays: 'ਐਤਵਾਰ_ਸੋਮਵਾਰ_ਮੰਗਲਵਾਰ_ਬੁਧਵਾਰ_ਵੀਰਵਾਰ_ਸ਼ੁੱਕਰਵਾਰ_ਸ਼ਨੀਚਰਵਾਰ'.split(
+        '_'
+    ),
+    weekdaysShort: 'ਐਤ_ਸੋਮ_ਮੰਗਲ_ਬੁਧ_ਵੀਰ_ਸ਼ੁਕਰ_ਸ਼ਨੀ'.split('_'),
+    weekdaysMin: 'ਐਤ_ਸੋਮ_ਮੰਗਲ_ਬੁਧ_ਵੀਰ_ਸ਼ੁਕਰ_ਸ਼ਨੀ'.split('_'),
+    longDateFormat: {
+        LT: 'A h:mm ਵਜੇ',
+        LTS: 'A h:mm:ss ਵਜੇ',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY, A h:mm ਵਜੇ',
+        LLLL: 'dddd, D MMMM YYYY, A h:mm ਵਜੇ',
+    },
+    calendar: {
+        sameDay: '[ਅਜ] LT',
+        nextDay: '[ਕਲ] LT',
+        nextWeek: '[ਅਗਲਾ] dddd, LT',
+        lastDay: '[ਕਲ] LT',
+        lastWeek: '[ਪਿਛਲੇ] dddd, LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s ਵਿੱਚ',
+        past: '%s ਪਿਛਲੇ',
+        s: 'ਕੁਝ ਸਕਿੰਟ',
+        ss: '%d ਸਕਿੰਟ',
+        m: 'ਇਕ ਮਿੰਟ',
+        mm: '%d ਮਿੰਟ',
+        h: 'ਇੱਕ ਘੰਟਾ',
+        hh: '%d ਘੰਟੇ',
+        d: 'ਇੱਕ ਦਿਨ',
+        dd: '%d ਦਿਨ',
+        M: 'ਇੱਕ ਮਹੀਨਾ',
+        MM: '%d ਮਹੀਨੇ',
+        y: 'ਇੱਕ ਸਾਲ',
+        yy: '%d ਸਾਲ',
+    },
+    preparse: function (string) {
+        return string.replace(/[੧੨੩੪੫੬੭੮੯੦]/g, function (match) {
+            return numberMap[match];
+        });
+    },
+    postformat: function (string) {
+        return string.replace(/\d/g, function (match) {
+            return symbolMap[match];
+        });
+    },
+    // Punjabi notation for meridiems are quite fuzzy in practice. While there exists
+    // a rigid notion of a 'Pahar' it is not used as rigidly in modern Punjabi.
+    meridiemParse: /ਰਾਤ|ਸਵੇਰ|ਦੁਪਹਿਰ|ਸ਼ਾਮ/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'ਰਾਤ') {
+            return hour < 4 ? hour : hour + 12;
+        } else if (meridiem === 'ਸਵੇਰ') {
+            return hour;
+        } else if (meridiem === 'ਦੁਪਹਿਰ') {
+            return hour >= 10 ? hour : hour + 12;
+        } else if (meridiem === 'ਸ਼ਾਮ') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'ਰਾਤ';
+        } else if (hour < 10) {
+            return 'ਸਵੇਰ';
+        } else if (hour < 17) {
+            return 'ਦੁਪਹਿਰ';
+        } else if (hour < 20) {
+            return 'ਸ਼ਾਮ';
+        } else {
+            return 'ਰਾਤ';
+        }
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/pl.js b/backend/node_modules/moment/dist/locale/pl.js
new file mode 100644
index 0000000..0608c0d
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/pl.js
@@ -0,0 +1,140 @@
+//! moment.js locale configuration
+//! locale : Polish [pl]
+//! author : Rafal Hirsz : https://github.com/evoL
+
+import moment from '../moment';
+
+var monthsNominative =
+        'styczeń_luty_marzec_kwiecień_maj_czerwiec_lipiec_sierpień_wrzesień_październik_listopad_grudzień'.split(
+            '_'
+        ),
+    monthsSubjective =
+        'stycznia_lutego_marca_kwietnia_maja_czerwca_lipca_sierpnia_września_października_listopada_grudnia'.split(
+            '_'
+        ),
+    monthsParse = [
+        /^sty/i,
+        /^lut/i,
+        /^mar/i,
+        /^kwi/i,
+        /^maj/i,
+        /^cze/i,
+        /^lip/i,
+        /^sie/i,
+        /^wrz/i,
+        /^paź/i,
+        /^lis/i,
+        /^gru/i,
+    ];
+function plural(n) {
+    return n % 10 < 5 && n % 10 > 1 && ~~(n / 10) % 10 !== 1;
+}
+function translate(number, withoutSuffix, key) {
+    var result = number + ' ';
+    switch (key) {
+        case 'ss':
+            return result + (plural(number) ? 'sekundy' : 'sekund');
+        case 'm':
+            return withoutSuffix ? 'minuta' : 'minutę';
+        case 'mm':
+            return result + (plural(number) ? 'minuty' : 'minut');
+        case 'h':
+            return withoutSuffix ? 'godzina' : 'godzinę';
+        case 'hh':
+            return result + (plural(number) ? 'godziny' : 'godzin');
+        case 'ww':
+            return result + (plural(number) ? 'tygodnie' : 'tygodni');
+        case 'MM':
+            return result + (plural(number) ? 'miesiące' : 'miesięcy');
+        case 'yy':
+            return result + (plural(number) ? 'lata' : 'lat');
+    }
+}
+
+export default moment.defineLocale('pl', {
+    months: function (momentToFormat, format) {
+        if (!momentToFormat) {
+            return monthsNominative;
+        } else if (/D MMMM/.test(format)) {
+            return monthsSubjective[momentToFormat.month()];
+        } else {
+            return monthsNominative[momentToFormat.month()];
+        }
+    },
+    monthsShort: 'sty_lut_mar_kwi_maj_cze_lip_sie_wrz_paź_lis_gru'.split('_'),
+    monthsParse: monthsParse,
+    longMonthsParse: monthsParse,
+    shortMonthsParse: monthsParse,
+    weekdays:
+        'niedziela_poniedziałek_wtorek_środa_czwartek_piątek_sobota'.split('_'),
+    weekdaysShort: 'ndz_pon_wt_śr_czw_pt_sob'.split('_'),
+    weekdaysMin: 'Nd_Pn_Wt_Śr_Cz_Pt_So'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Dziś o] LT',
+        nextDay: '[Jutro o] LT',
+        nextWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[W niedzielę o] LT';
+
+                case 2:
+                    return '[We wtorek o] LT';
+
+                case 3:
+                    return '[W środę o] LT';
+
+                case 6:
+                    return '[W sobotę o] LT';
+
+                default:
+                    return '[W] dddd [o] LT';
+            }
+        },
+        lastDay: '[Wczoraj o] LT',
+        lastWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[W zeszłą niedzielę o] LT';
+                case 3:
+                    return '[W zeszłą środę o] LT';
+                case 6:
+                    return '[W zeszłą sobotę o] LT';
+                default:
+                    return '[W zeszły] dddd [o] LT';
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'za %s',
+        past: '%s temu',
+        s: 'kilka sekund',
+        ss: translate,
+        m: translate,
+        mm: translate,
+        h: translate,
+        hh: translate,
+        d: '1 dzień',
+        dd: '%d dni',
+        w: 'tydzień',
+        ww: translate,
+        M: 'miesiąc',
+        MM: translate,
+        y: 'rok',
+        yy: translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/pt-br.js b/backend/node_modules/moment/dist/locale/pt-br.js
new file mode 100644
index 0000000..eb9aa64
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/pt-br.js
@@ -0,0 +1,58 @@
+//! moment.js locale configuration
+//! locale : Portuguese (Brazil) [pt-br]
+//! author : Caio Ribeiro Pereira : https://github.com/caio-ribeiro-pereira
+
+import moment from '../moment';
+
+export default moment.defineLocale('pt-br', {
+    months: 'janeiro_fevereiro_março_abril_maio_junho_julho_agosto_setembro_outubro_novembro_dezembro'.split(
+        '_'
+    ),
+    monthsShort: 'jan_fev_mar_abr_mai_jun_jul_ago_set_out_nov_dez'.split('_'),
+    weekdays:
+        'domingo_segunda-feira_terça-feira_quarta-feira_quinta-feira_sexta-feira_sábado'.split(
+            '_'
+        ),
+    weekdaysShort: 'dom_seg_ter_qua_qui_sex_sáb'.split('_'),
+    weekdaysMin: 'do_2ª_3ª_4ª_5ª_6ª_sá'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D [de] MMMM [de] YYYY',
+        LLL: 'D [de] MMMM [de] YYYY [às] HH:mm',
+        LLLL: 'dddd, D [de] MMMM [de] YYYY [às] HH:mm',
+    },
+    calendar: {
+        sameDay: '[Hoje às] LT',
+        nextDay: '[Amanhã às] LT',
+        nextWeek: 'dddd [às] LT',
+        lastDay: '[Ontem às] LT',
+        lastWeek: function () {
+            return this.day() === 0 || this.day() === 6
+                ? '[Último] dddd [às] LT' // Saturday + Sunday
+                : '[Última] dddd [às] LT'; // Monday - Friday
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'em %s',
+        past: 'há %s',
+        s: 'poucos segundos',
+        ss: '%d segundos',
+        m: 'um minuto',
+        mm: '%d minutos',
+        h: 'uma hora',
+        hh: '%d horas',
+        d: 'um dia',
+        dd: '%d dias',
+        M: 'um mês',
+        MM: '%d meses',
+        y: 'um ano',
+        yy: '%d anos',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}º/,
+    ordinal: '%dº',
+    invalidDate: 'Data inválida',
+});
diff --git a/backend/node_modules/moment/dist/locale/pt.js b/backend/node_modules/moment/dist/locale/pt.js
new file mode 100644
index 0000000..d9b6055
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/pt.js
@@ -0,0 +1,63 @@
+//! moment.js locale configuration
+//! locale : Portuguese [pt]
+//! author : Jefferson : https://github.com/jalex79
+
+import moment from '../moment';
+
+export default moment.defineLocale('pt', {
+    months: 'janeiro_fevereiro_março_abril_maio_junho_julho_agosto_setembro_outubro_novembro_dezembro'.split(
+        '_'
+    ),
+    monthsShort: 'jan_fev_mar_abr_mai_jun_jul_ago_set_out_nov_dez'.split('_'),
+    weekdays:
+        'Domingo_Segunda-feira_Terça-feira_Quarta-feira_Quinta-feira_Sexta-feira_Sábado'.split(
+            '_'
+        ),
+    weekdaysShort: 'Dom_Seg_Ter_Qua_Qui_Sex_Sáb'.split('_'),
+    weekdaysMin: 'Do_2ª_3ª_4ª_5ª_6ª_Sá'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D [de] MMMM [de] YYYY',
+        LLL: 'D [de] MMMM [de] YYYY HH:mm',
+        LLLL: 'dddd, D [de] MMMM [de] YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Hoje às] LT',
+        nextDay: '[Amanhã às] LT',
+        nextWeek: 'dddd [às] LT',
+        lastDay: '[Ontem às] LT',
+        lastWeek: function () {
+            return this.day() === 0 || this.day() === 6
+                ? '[Último] dddd [às] LT' // Saturday + Sunday
+                : '[Última] dddd [às] LT'; // Monday - Friday
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'em %s',
+        past: 'há %s',
+        s: 'segundos',
+        ss: '%d segundos',
+        m: 'um minuto',
+        mm: '%d minutos',
+        h: 'uma hora',
+        hh: '%d horas',
+        d: 'um dia',
+        dd: '%d dias',
+        w: 'uma semana',
+        ww: '%d semanas',
+        M: 'um mês',
+        MM: '%d meses',
+        y: 'um ano',
+        yy: '%d anos',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}º/,
+    ordinal: '%dº',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ro.js b/backend/node_modules/moment/dist/locale/ro.js
new file mode 100644
index 0000000..d5bc5ea
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ro.js
@@ -0,0 +1,76 @@
+//! moment.js locale configuration
+//! locale : Romanian [ro]
+//! author : Vlad Gurdiga : https://github.com/gurdiga
+//! author : Valentin Agachi : https://github.com/avaly
+//! author : Emanuel Cepoi : https://github.com/cepem
+
+import moment from '../moment';
+
+function relativeTimeWithPlural(number, withoutSuffix, key) {
+    var format = {
+            ss: 'secunde',
+            mm: 'minute',
+            hh: 'ore',
+            dd: 'zile',
+            ww: 'săptămâni',
+            MM: 'luni',
+            yy: 'ani',
+        },
+        separator = ' ';
+    if (number % 100 >= 20 || (number >= 100 && number % 100 === 0)) {
+        separator = ' de ';
+    }
+    return number + separator + format[key];
+}
+
+export default moment.defineLocale('ro', {
+    months: 'ianuarie_februarie_martie_aprilie_mai_iunie_iulie_august_septembrie_octombrie_noiembrie_decembrie'.split(
+        '_'
+    ),
+    monthsShort:
+        'ian._feb._mart._apr._mai_iun._iul._aug._sept._oct._nov._dec.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'duminică_luni_marți_miercuri_joi_vineri_sâmbătă'.split('_'),
+    weekdaysShort: 'Dum_Lun_Mar_Mie_Joi_Vin_Sâm'.split('_'),
+    weekdaysMin: 'Du_Lu_Ma_Mi_Jo_Vi_Sâ'.split('_'),
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY H:mm',
+        LLLL: 'dddd, D MMMM YYYY H:mm',
+    },
+    calendar: {
+        sameDay: '[azi la] LT',
+        nextDay: '[mâine la] LT',
+        nextWeek: 'dddd [la] LT',
+        lastDay: '[ieri la] LT',
+        lastWeek: '[fosta] dddd [la] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'peste %s',
+        past: '%s în urmă',
+        s: 'câteva secunde',
+        ss: relativeTimeWithPlural,
+        m: 'un minut',
+        mm: relativeTimeWithPlural,
+        h: 'o oră',
+        hh: relativeTimeWithPlural,
+        d: 'o zi',
+        dd: relativeTimeWithPlural,
+        w: 'o săptămână',
+        ww: relativeTimeWithPlural,
+        M: 'o lună',
+        MM: relativeTimeWithPlural,
+        y: 'un an',
+        yy: relativeTimeWithPlural,
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ru.js b/backend/node_modules/moment/dist/locale/ru.js
new file mode 100644
index 0000000..d214850
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ru.js
@@ -0,0 +1,213 @@
+//! moment.js locale configuration
+//! locale : Russian [ru]
+//! author : Viktorminator : https://github.com/Viktorminator
+//! author : Menelion Elensúle : https://github.com/Oire
+//! author : Коренберг Марк : https://github.com/socketpair
+
+import moment from '../moment';
+
+function plural(word, num) {
+    var forms = word.split('_');
+    return num % 10 === 1 && num % 100 !== 11
+        ? forms[0]
+        : num % 10 >= 2 && num % 10 <= 4 && (num % 100 < 10 || num % 100 >= 20)
+          ? forms[1]
+          : forms[2];
+}
+function relativeTimeWithPlural(number, withoutSuffix, key) {
+    var format = {
+        ss: withoutSuffix ? 'секунда_секунды_секунд' : 'секунду_секунды_секунд',
+        mm: withoutSuffix ? 'минута_минуты_минут' : 'минуту_минуты_минут',
+        hh: 'час_часа_часов',
+        dd: 'день_дня_дней',
+        ww: 'неделя_недели_недель',
+        MM: 'месяц_месяца_месяцев',
+        yy: 'год_года_лет',
+    };
+    if (key === 'm') {
+        return withoutSuffix ? 'минута' : 'минуту';
+    } else {
+        return number + ' ' + plural(format[key], +number);
+    }
+}
+var monthsParse = [
+    /^янв/i,
+    /^фев/i,
+    /^мар/i,
+    /^апр/i,
+    /^ма[йя]/i,
+    /^июн/i,
+    /^июл/i,
+    /^авг/i,
+    /^сен/i,
+    /^окт/i,
+    /^ноя/i,
+    /^дек/i,
+];
+
+// http://new.gramota.ru/spravka/rules/139-prop : § 103
+// Сокращения месяцев: http://new.gramota.ru/spravka/buro/search-answer?s=242637
+// CLDR data:          http://www.unicode.org/cldr/charts/28/summary/ru.html#1753
+export default moment.defineLocale('ru', {
+    months: {
+        format: 'января_февраля_марта_апреля_мая_июня_июля_августа_сентября_октября_ноября_декабря'.split(
+            '_'
+        ),
+        standalone:
+            'январь_февраль_март_апрель_май_июнь_июль_август_сентябрь_октябрь_ноябрь_декабрь'.split(
+                '_'
+            ),
+    },
+    monthsShort: {
+        // по CLDR именно "июл." и "июн.", но какой смысл менять букву на точку?
+        format: 'янв._февр._мар._апр._мая_июня_июля_авг._сент._окт._нояб._дек.'.split(
+            '_'
+        ),
+        standalone:
+            'янв._февр._март_апр._май_июнь_июль_авг._сент._окт._нояб._дек.'.split(
+                '_'
+            ),
+    },
+    weekdays: {
+        standalone:
+            'воскресенье_понедельник_вторник_среда_четверг_пятница_суббота'.split(
+                '_'
+            ),
+        format: 'воскресенье_понедельник_вторник_среду_четверг_пятницу_субботу'.split(
+            '_'
+        ),
+        isFormat: /\[ ?[Вв] ?(?:прошлую|следующую|эту)? ?] ?dddd/,
+    },
+    weekdaysShort: 'вс_пн_вт_ср_чт_пт_сб'.split('_'),
+    weekdaysMin: 'вс_пн_вт_ср_чт_пт_сб'.split('_'),
+    monthsParse: monthsParse,
+    longMonthsParse: monthsParse,
+    shortMonthsParse: monthsParse,
+
+    // полные названия с падежами, по три буквы, для некоторых, по 4 буквы, сокращения с точкой и без точки
+    monthsRegex:
+        /^(январ[ья]|янв\.?|феврал[ья]|февр?\.?|марта?|мар\.?|апрел[ья]|апр\.?|ма[йя]|июн[ья]|июн\.?|июл[ья]|июл\.?|августа?|авг\.?|сентябр[ья]|сент?\.?|октябр[ья]|окт\.?|ноябр[ья]|нояб?\.?|декабр[ья]|дек\.?)/i,
+
+    // копия предыдущего
+    monthsShortRegex:
+        /^(январ[ья]|янв\.?|феврал[ья]|февр?\.?|марта?|мар\.?|апрел[ья]|апр\.?|ма[йя]|июн[ья]|июн\.?|июл[ья]|июл\.?|августа?|авг\.?|сентябр[ья]|сент?\.?|октябр[ья]|окт\.?|ноябр[ья]|нояб?\.?|декабр[ья]|дек\.?)/i,
+
+    // полные названия с падежами
+    monthsStrictRegex:
+        /^(январ[яь]|феврал[яь]|марта?|апрел[яь]|ма[яй]|июн[яь]|июл[яь]|августа?|сентябр[яь]|октябр[яь]|ноябр[яь]|декабр[яь])/i,
+
+    // Выражение, которое соответствует только сокращённым формам
+    monthsShortStrictRegex:
+        /^(янв\.|февр?\.|мар[т.]|апр\.|ма[яй]|июн[ья.]|июл[ья.]|авг\.|сент?\.|окт\.|нояб?\.|дек\.)/i,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY г.',
+        LLL: 'D MMMM YYYY г., H:mm',
+        LLLL: 'dddd, D MMMM YYYY г., H:mm',
+    },
+    calendar: {
+        sameDay: '[Сегодня, в] LT',
+        nextDay: '[Завтра, в] LT',
+        lastDay: '[Вчера, в] LT',
+        nextWeek: function (now) {
+            if (now.week() !== this.week()) {
+                switch (this.day()) {
+                    case 0:
+                        return '[В следующее] dddd, [в] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                        return '[В следующий] dddd, [в] LT';
+                    case 3:
+                    case 5:
+                    case 6:
+                        return '[В следующую] dddd, [в] LT';
+                }
+            } else {
+                if (this.day() === 2) {
+                    return '[Во] dddd, [в] LT';
+                } else {
+                    return '[В] dddd, [в] LT';
+                }
+            }
+        },
+        lastWeek: function (now) {
+            if (now.week() !== this.week()) {
+                switch (this.day()) {
+                    case 0:
+                        return '[В прошлое] dddd, [в] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                        return '[В прошлый] dddd, [в] LT';
+                    case 3:
+                    case 5:
+                    case 6:
+                        return '[В прошлую] dddd, [в] LT';
+                }
+            } else {
+                if (this.day() === 2) {
+                    return '[Во] dddd, [в] LT';
+                } else {
+                    return '[В] dddd, [в] LT';
+                }
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'через %s',
+        past: '%s назад',
+        s: 'несколько секунд',
+        ss: relativeTimeWithPlural,
+        m: relativeTimeWithPlural,
+        mm: relativeTimeWithPlural,
+        h: 'час',
+        hh: relativeTimeWithPlural,
+        d: 'день',
+        dd: relativeTimeWithPlural,
+        w: 'неделя',
+        ww: relativeTimeWithPlural,
+        M: 'месяц',
+        MM: relativeTimeWithPlural,
+        y: 'год',
+        yy: relativeTimeWithPlural,
+    },
+    meridiemParse: /ночи|утра|дня|вечера/i,
+    isPM: function (input) {
+        return /^(дня|вечера)$/.test(input);
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'ночи';
+        } else if (hour < 12) {
+            return 'утра';
+        } else if (hour < 17) {
+            return 'дня';
+        } else {
+            return 'вечера';
+        }
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}-(й|го|я)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'M':
+            case 'd':
+            case 'DDD':
+                return number + '-й';
+            case 'D':
+                return number + '-го';
+            case 'w':
+            case 'W':
+                return number + '-я';
+            default:
+                return number;
+        }
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/sd.js b/backend/node_modules/moment/dist/locale/sd.js
new file mode 100644
index 0000000..20f1059
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/sd.js
@@ -0,0 +1,81 @@
+//! moment.js locale configuration
+//! locale : Sindhi [sd]
+//! author : Narain Sagar : https://github.com/narainsagar
+
+import moment from '../moment';
+
+var months = [
+        'جنوري',
+        'فيبروري',
+        'مارچ',
+        'اپريل',
+        'مئي',
+        'جون',
+        'جولاءِ',
+        'آگسٽ',
+        'سيپٽمبر',
+        'آڪٽوبر',
+        'نومبر',
+        'ڊسمبر',
+    ],
+    days = ['آچر', 'سومر', 'اڱارو', 'اربع', 'خميس', 'جمع', 'ڇنڇر'];
+
+export default moment.defineLocale('sd', {
+    months: months,
+    monthsShort: months,
+    weekdays: days,
+    weekdaysShort: days,
+    weekdaysMin: days,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd، D MMMM YYYY HH:mm',
+    },
+    meridiemParse: /صبح|شام/,
+    isPM: function (input) {
+        return 'شام' === input;
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'صبح';
+        }
+        return 'شام';
+    },
+    calendar: {
+        sameDay: '[اڄ] LT',
+        nextDay: '[سڀاڻي] LT',
+        nextWeek: 'dddd [اڳين هفتي تي] LT',
+        lastDay: '[ڪالهه] LT',
+        lastWeek: '[گزريل هفتي] dddd [تي] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s پوء',
+        past: '%s اڳ',
+        s: 'چند سيڪنڊ',
+        ss: '%d سيڪنڊ',
+        m: 'هڪ منٽ',
+        mm: '%d منٽ',
+        h: 'هڪ ڪلاڪ',
+        hh: '%d ڪلاڪ',
+        d: 'هڪ ڏينهن',
+        dd: '%d ڏينهن',
+        M: 'هڪ مهينو',
+        MM: '%d مهينا',
+        y: 'هڪ سال',
+        yy: '%d سال',
+    },
+    preparse: function (string) {
+        return string.replace(/،/g, ',');
+    },
+    postformat: function (string) {
+        return string.replace(/,/g, '،');
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/se.js b/backend/node_modules/moment/dist/locale/se.js
new file mode 100644
index 0000000..e8eec58
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/se.js
@@ -0,0 +1,57 @@
+//! moment.js locale configuration
+//! locale : Northern Sami [se]
+//! authors : Bård Rolstad Henriksen : https://github.com/karamell
+
+import moment from '../moment';
+
+export default moment.defineLocale('se', {
+    months: 'ođđajagemánnu_guovvamánnu_njukčamánnu_cuoŋománnu_miessemánnu_geassemánnu_suoidnemánnu_borgemánnu_čakčamánnu_golggotmánnu_skábmamánnu_juovlamánnu'.split(
+        '_'
+    ),
+    monthsShort:
+        'ođđj_guov_njuk_cuo_mies_geas_suoi_borg_čakč_golg_skáb_juov'.split('_'),
+    weekdays:
+        'sotnabeaivi_vuossárga_maŋŋebárga_gaskavahkku_duorastat_bearjadat_lávvardat'.split(
+            '_'
+        ),
+    weekdaysShort: 'sotn_vuos_maŋ_gask_duor_bear_láv'.split('_'),
+    weekdaysMin: 's_v_m_g_d_b_L'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'MMMM D. [b.] YYYY',
+        LLL: 'MMMM D. [b.] YYYY [ti.] HH:mm',
+        LLLL: 'dddd, MMMM D. [b.] YYYY [ti.] HH:mm',
+    },
+    calendar: {
+        sameDay: '[otne ti] LT',
+        nextDay: '[ihttin ti] LT',
+        nextWeek: 'dddd [ti] LT',
+        lastDay: '[ikte ti] LT',
+        lastWeek: '[ovddit] dddd [ti] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s geažes',
+        past: 'maŋit %s',
+        s: 'moadde sekunddat',
+        ss: '%d sekunddat',
+        m: 'okta minuhta',
+        mm: '%d minuhtat',
+        h: 'okta diimmu',
+        hh: '%d diimmut',
+        d: 'okta beaivi',
+        dd: '%d beaivvit',
+        M: 'okta mánnu',
+        MM: '%d mánut',
+        y: 'okta jahki',
+        yy: '%d jagit',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/si.js b/backend/node_modules/moment/dist/locale/si.js
new file mode 100644
index 0000000..0f2498c
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/si.js
@@ -0,0 +1,69 @@
+//! moment.js locale configuration
+//! locale : Sinhalese [si]
+//! author : Sampath Sitinamaluwa : https://github.com/sampathsris
+
+import moment from '../moment';
+
+/*jshint -W100*/
+export default moment.defineLocale('si', {
+    months: 'ජනවාරි_පෙබරවාරි_මාර්තු_අප්‍රේල්_මැයි_ජූනි_ජූලි_අගෝස්තු_සැප්තැම්බර්_ඔක්තෝබර්_නොවැම්බර්_දෙසැම්බර්'.split(
+        '_'
+    ),
+    monthsShort: 'ජන_පෙබ_මාර්_අප්_මැයි_ජූනි_ජූලි_අගෝ_සැප්_ඔක්_නොවැ_දෙසැ'.split(
+        '_'
+    ),
+    weekdays:
+        'ඉරිදා_සඳුදා_අඟහරුවාදා_බදාදා_බ්‍රහස්පතින්දා_සිකුරාදා_සෙනසුරාදා'.split(
+            '_'
+        ),
+    weekdaysShort: 'ඉරි_සඳු_අඟ_බදා_බ්‍රහ_සිකු_සෙන'.split('_'),
+    weekdaysMin: 'ඉ_ස_අ_බ_බ්‍ර_සි_සෙ'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'a h:mm',
+        LTS: 'a h:mm:ss',
+        L: 'YYYY/MM/DD',
+        LL: 'YYYY MMMM D',
+        LLL: 'YYYY MMMM D, a h:mm',
+        LLLL: 'YYYY MMMM D [වැනි] dddd, a h:mm:ss',
+    },
+    calendar: {
+        sameDay: '[අද] LT[ට]',
+        nextDay: '[හෙට] LT[ට]',
+        nextWeek: 'dddd LT[ට]',
+        lastDay: '[ඊයේ] LT[ට]',
+        lastWeek: '[පසුගිය] dddd LT[ට]',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%sකින්',
+        past: '%sකට පෙර',
+        s: 'තත්පර කිහිපය',
+        ss: 'තත්පර %d',
+        m: 'මිනිත්තුව',
+        mm: 'මිනිත්තු %d',
+        h: 'පැය',
+        hh: 'පැය %d',
+        d: 'දිනය',
+        dd: 'දින %d',
+        M: 'මාසය',
+        MM: 'මාස %d',
+        y: 'වසර',
+        yy: 'වසර %d',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2} වැනි/,
+    ordinal: function (number) {
+        return number + ' වැනි';
+    },
+    meridiemParse: /පෙර වරු|පස් වරු|පෙ.ව|ප.ව./,
+    isPM: function (input) {
+        return input === 'ප.ව.' || input === 'පස් වරු';
+    },
+    meridiem: function (hours, minutes, isLower) {
+        if (hours > 11) {
+            return isLower ? 'ප.ව.' : 'පස් වරු';
+        } else {
+            return isLower ? 'පෙ.ව.' : 'පෙර වරු';
+        }
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/sk.js b/backend/node_modules/moment/dist/locale/sk.js
new file mode 100644
index 0000000..7162ed6
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/sk.js
@@ -0,0 +1,145 @@
+//! moment.js locale configuration
+//! locale : Slovak [sk]
+//! author : Martin Minka : https://github.com/k2s
+//! based on work of petrbela : https://github.com/petrbela
+
+import moment from '../moment';
+
+var months =
+        'január_február_marec_apríl_máj_jún_júl_august_september_október_november_december'.split(
+            '_'
+        ),
+    monthsShort = 'jan_feb_mar_apr_máj_jún_júl_aug_sep_okt_nov_dec'.split('_');
+function plural(n) {
+    return n > 1 && n < 5;
+}
+function translate(number, withoutSuffix, key, isFuture) {
+    var result = number + ' ';
+    switch (key) {
+        case 's': // a few seconds / in a few seconds / a few seconds ago
+            return withoutSuffix || isFuture ? 'pár sekúnd' : 'pár sekundami';
+        case 'ss': // 9 seconds / in 9 seconds / 9 seconds ago
+            if (withoutSuffix || isFuture) {
+                return result + (plural(number) ? 'sekundy' : 'sekúnd');
+            } else {
+                return result + 'sekundami';
+            }
+        case 'm': // a minute / in a minute / a minute ago
+            return withoutSuffix ? 'minúta' : isFuture ? 'minútu' : 'minútou';
+        case 'mm': // 9 minutes / in 9 minutes / 9 minutes ago
+            if (withoutSuffix || isFuture) {
+                return result + (plural(number) ? 'minúty' : 'minút');
+            } else {
+                return result + 'minútami';
+            }
+        case 'h': // an hour / in an hour / an hour ago
+            return withoutSuffix ? 'hodina' : isFuture ? 'hodinu' : 'hodinou';
+        case 'hh': // 9 hours / in 9 hours / 9 hours ago
+            if (withoutSuffix || isFuture) {
+                return result + (plural(number) ? 'hodiny' : 'hodín');
+            } else {
+                return result + 'hodinami';
+            }
+        case 'd': // a day / in a day / a day ago
+            return withoutSuffix || isFuture ? 'deň' : 'dňom';
+        case 'dd': // 9 days / in 9 days / 9 days ago
+            if (withoutSuffix || isFuture) {
+                return result + (plural(number) ? 'dni' : 'dní');
+            } else {
+                return result + 'dňami';
+            }
+        case 'M': // a month / in a month / a month ago
+            return withoutSuffix || isFuture ? 'mesiac' : 'mesiacom';
+        case 'MM': // 9 months / in 9 months / 9 months ago
+            if (withoutSuffix || isFuture) {
+                return result + (plural(number) ? 'mesiace' : 'mesiacov');
+            } else {
+                return result + 'mesiacmi';
+            }
+        case 'y': // a year / in a year / a year ago
+            return withoutSuffix || isFuture ? 'rok' : 'rokom';
+        case 'yy': // 9 years / in 9 years / 9 years ago
+            if (withoutSuffix || isFuture) {
+                return result + (plural(number) ? 'roky' : 'rokov');
+            } else {
+                return result + 'rokmi';
+            }
+    }
+}
+
+export default moment.defineLocale('sk', {
+    months: months,
+    monthsShort: monthsShort,
+    weekdays: 'nedeľa_pondelok_utorok_streda_štvrtok_piatok_sobota'.split('_'),
+    weekdaysShort: 'ne_po_ut_st_št_pi_so'.split('_'),
+    weekdaysMin: 'ne_po_ut_st_št_pi_so'.split('_'),
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY H:mm',
+        LLLL: 'dddd D. MMMM YYYY H:mm',
+    },
+    calendar: {
+        sameDay: '[dnes o] LT',
+        nextDay: '[zajtra o] LT',
+        nextWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[v nedeľu o] LT';
+                case 1:
+                case 2:
+                    return '[v] dddd [o] LT';
+                case 3:
+                    return '[v stredu o] LT';
+                case 4:
+                    return '[vo štvrtok o] LT';
+                case 5:
+                    return '[v piatok o] LT';
+                case 6:
+                    return '[v sobotu o] LT';
+            }
+        },
+        lastDay: '[včera o] LT',
+        lastWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[minulú nedeľu o] LT';
+                case 1:
+                case 2:
+                    return '[minulý] dddd [o] LT';
+                case 3:
+                    return '[minulú stredu o] LT';
+                case 4:
+                case 5:
+                    return '[minulý] dddd [o] LT';
+                case 6:
+                    return '[minulú sobotu o] LT';
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'za %s',
+        past: 'pred %s',
+        s: translate,
+        ss: translate,
+        m: translate,
+        mm: translate,
+        h: translate,
+        hh: translate,
+        d: translate,
+        dd: translate,
+        M: translate,
+        MM: translate,
+        y: translate,
+        yy: translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/sl.js b/backend/node_modules/moment/dist/locale/sl.js
new file mode 100644
index 0000000..0290a8e
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/sl.js
@@ -0,0 +1,171 @@
+//! moment.js locale configuration
+//! locale : Slovenian [sl]
+//! author : Robert Sedovšek : https://github.com/sedovsek
+
+import moment from '../moment';
+
+function processRelativeTime(number, withoutSuffix, key, isFuture) {
+    var result = number + ' ';
+    switch (key) {
+        case 's':
+            return withoutSuffix || isFuture
+                ? 'nekaj sekund'
+                : 'nekaj sekundami';
+        case 'ss':
+            if (number === 1) {
+                result += withoutSuffix ? 'sekundo' : 'sekundi';
+            } else if (number === 2) {
+                result += withoutSuffix || isFuture ? 'sekundi' : 'sekundah';
+            } else if (number < 5) {
+                result += withoutSuffix || isFuture ? 'sekunde' : 'sekundah';
+            } else {
+                result += 'sekund';
+            }
+            return result;
+        case 'm':
+            return withoutSuffix ? 'ena minuta' : 'eno minuto';
+        case 'mm':
+            if (number === 1) {
+                result += withoutSuffix ? 'minuta' : 'minuto';
+            } else if (number === 2) {
+                result += withoutSuffix || isFuture ? 'minuti' : 'minutama';
+            } else if (number < 5) {
+                result += withoutSuffix || isFuture ? 'minute' : 'minutami';
+            } else {
+                result += withoutSuffix || isFuture ? 'minut' : 'minutami';
+            }
+            return result;
+        case 'h':
+            return withoutSuffix ? 'ena ura' : 'eno uro';
+        case 'hh':
+            if (number === 1) {
+                result += withoutSuffix ? 'ura' : 'uro';
+            } else if (number === 2) {
+                result += withoutSuffix || isFuture ? 'uri' : 'urama';
+            } else if (number < 5) {
+                result += withoutSuffix || isFuture ? 'ure' : 'urami';
+            } else {
+                result += withoutSuffix || isFuture ? 'ur' : 'urami';
+            }
+            return result;
+        case 'd':
+            return withoutSuffix || isFuture ? 'en dan' : 'enim dnem';
+        case 'dd':
+            if (number === 1) {
+                result += withoutSuffix || isFuture ? 'dan' : 'dnem';
+            } else if (number === 2) {
+                result += withoutSuffix || isFuture ? 'dni' : 'dnevoma';
+            } else {
+                result += withoutSuffix || isFuture ? 'dni' : 'dnevi';
+            }
+            return result;
+        case 'M':
+            return withoutSuffix || isFuture ? 'en mesec' : 'enim mesecem';
+        case 'MM':
+            if (number === 1) {
+                result += withoutSuffix || isFuture ? 'mesec' : 'mesecem';
+            } else if (number === 2) {
+                result += withoutSuffix || isFuture ? 'meseca' : 'mesecema';
+            } else if (number < 5) {
+                result += withoutSuffix || isFuture ? 'mesece' : 'meseci';
+            } else {
+                result += withoutSuffix || isFuture ? 'mesecev' : 'meseci';
+            }
+            return result;
+        case 'y':
+            return withoutSuffix || isFuture ? 'eno leto' : 'enim letom';
+        case 'yy':
+            if (number === 1) {
+                result += withoutSuffix || isFuture ? 'leto' : 'letom';
+            } else if (number === 2) {
+                result += withoutSuffix || isFuture ? 'leti' : 'letoma';
+            } else if (number < 5) {
+                result += withoutSuffix || isFuture ? 'leta' : 'leti';
+            } else {
+                result += withoutSuffix || isFuture ? 'let' : 'leti';
+            }
+            return result;
+    }
+}
+
+export default moment.defineLocale('sl', {
+    months: 'januar_februar_marec_april_maj_junij_julij_avgust_september_oktober_november_december'.split(
+        '_'
+    ),
+    monthsShort:
+        'jan._feb._mar._apr._maj._jun._jul._avg._sep._okt._nov._dec.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'nedelja_ponedeljek_torek_sreda_četrtek_petek_sobota'.split('_'),
+    weekdaysShort: 'ned._pon._tor._sre._čet._pet._sob.'.split('_'),
+    weekdaysMin: 'ne_po_to_sr_če_pe_so'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD. MM. YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY H:mm',
+        LLLL: 'dddd, D. MMMM YYYY H:mm',
+    },
+    calendar: {
+        sameDay: '[danes ob] LT',
+        nextDay: '[jutri ob] LT',
+
+        nextWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[v] [nedeljo] [ob] LT';
+                case 3:
+                    return '[v] [sredo] [ob] LT';
+                case 6:
+                    return '[v] [soboto] [ob] LT';
+                case 1:
+                case 2:
+                case 4:
+                case 5:
+                    return '[v] dddd [ob] LT';
+            }
+        },
+        lastDay: '[včeraj ob] LT',
+        lastWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[prejšnjo] [nedeljo] [ob] LT';
+                case 3:
+                    return '[prejšnjo] [sredo] [ob] LT';
+                case 6:
+                    return '[prejšnjo] [soboto] [ob] LT';
+                case 1:
+                case 2:
+                case 4:
+                case 5:
+                    return '[prejšnji] dddd [ob] LT';
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'čez %s',
+        past: 'pred %s',
+        s: processRelativeTime,
+        ss: processRelativeTime,
+        m: processRelativeTime,
+        mm: processRelativeTime,
+        h: processRelativeTime,
+        hh: processRelativeTime,
+        d: processRelativeTime,
+        dd: processRelativeTime,
+        M: processRelativeTime,
+        MM: processRelativeTime,
+        y: processRelativeTime,
+        yy: processRelativeTime,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/sq.js b/backend/node_modules/moment/dist/locale/sq.js
new file mode 100644
index 0000000..3b3bcfa
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/sq.js
@@ -0,0 +1,65 @@
+//! moment.js locale configuration
+//! locale : Albanian [sq]
+//! author : Flakërim Ismani : https://github.com/flakerimi
+//! author : Menelion Elensúle : https://github.com/Oire
+//! author : Oerd Cukalla : https://github.com/oerd
+
+import moment from '../moment';
+
+export default moment.defineLocale('sq', {
+    months: 'Janar_Shkurt_Mars_Prill_Maj_Qershor_Korrik_Gusht_Shtator_Tetor_Nëntor_Dhjetor'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Shk_Mar_Pri_Maj_Qer_Kor_Gus_Sht_Tet_Nën_Dhj'.split('_'),
+    weekdays: 'E Diel_E Hënë_E Martë_E Mërkurë_E Enjte_E Premte_E Shtunë'.split(
+        '_'
+    ),
+    weekdaysShort: 'Die_Hën_Mar_Mër_Enj_Pre_Sht'.split('_'),
+    weekdaysMin: 'D_H_Ma_Më_E_P_Sh'.split('_'),
+    weekdaysParseExact: true,
+    meridiemParse: /PD|MD/,
+    isPM: function (input) {
+        return input.charAt(0) === 'M';
+    },
+    meridiem: function (hours, minutes, isLower) {
+        return hours < 12 ? 'PD' : 'MD';
+    },
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Sot në] LT',
+        nextDay: '[Nesër në] LT',
+        nextWeek: 'dddd [në] LT',
+        lastDay: '[Dje në] LT',
+        lastWeek: 'dddd [e kaluar në] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'në %s',
+        past: '%s më parë',
+        s: 'disa sekonda',
+        ss: '%d sekonda',
+        m: 'një minutë',
+        mm: '%d minuta',
+        h: 'një orë',
+        hh: '%d orë',
+        d: 'një ditë',
+        dd: '%d ditë',
+        M: 'një muaj',
+        MM: '%d muaj',
+        y: 'një vit',
+        yy: '%d vite',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/sr-cyrl.js b/backend/node_modules/moment/dist/locale/sr-cyrl.js
new file mode 100644
index 0000000..5e05810
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/sr-cyrl.js
@@ -0,0 +1,127 @@
+//! moment.js locale configuration
+//! locale : Serbian Cyrillic [sr-cyrl]
+//! author : Milan Janačković<milanjanackovic@gmail.com> : https://github.com/milan-j
+//! author : Stefan Crnjaković <stefan@hotmail.rs> : https://github.com/crnjakovic
+
+import moment from '../moment';
+
+var translator = {
+    words: {
+        //Different grammatical cases
+        ss: ['секунда', 'секунде', 'секунди'],
+        m: ['један минут', 'једног минута'],
+        mm: ['минут', 'минута', 'минута'],
+        h: ['један сат', 'једног сата'],
+        hh: ['сат', 'сата', 'сати'],
+        d: ['један дан', 'једног дана'],
+        dd: ['дан', 'дана', 'дана'],
+        M: ['један месец', 'једног месеца'],
+        MM: ['месец', 'месеца', 'месеци'],
+        y: ['једну годину', 'једне године'],
+        yy: ['годину', 'године', 'година'],
+    },
+    correctGrammaticalCase: function (number, wordKey) {
+        if (
+            number % 10 >= 1 &&
+            number % 10 <= 4 &&
+            (number % 100 < 10 || number % 100 >= 20)
+        ) {
+            return number % 10 === 1 ? wordKey[0] : wordKey[1];
+        }
+        return wordKey[2];
+    },
+    translate: function (number, withoutSuffix, key, isFuture) {
+        var wordKey = translator.words[key],
+            word;
+
+        if (key.length === 1) {
+            // Nominativ
+            if (key === 'y' && withoutSuffix) return 'једна година';
+            return isFuture || withoutSuffix ? wordKey[0] : wordKey[1];
+        }
+
+        word = translator.correctGrammaticalCase(number, wordKey);
+        // Nominativ
+        if (key === 'yy' && withoutSuffix && word === 'годину') {
+            return number + ' година';
+        }
+
+        return number + ' ' + word;
+    },
+};
+
+export default moment.defineLocale('sr-cyrl', {
+    months: 'јануар_фебруар_март_април_мај_јун_јул_август_септембар_октобар_новембар_децембар'.split(
+        '_'
+    ),
+    monthsShort:
+        'јан._феб._мар._апр._мај_јун_јул_авг._сеп._окт._нов._дец.'.split('_'),
+    monthsParseExact: true,
+    weekdays: 'недеља_понедељак_уторак_среда_четвртак_петак_субота'.split('_'),
+    weekdaysShort: 'нед._пон._уто._сре._чет._пет._суб.'.split('_'),
+    weekdaysMin: 'не_по_ут_ср_че_пе_су'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'D. M. YYYY.',
+        LL: 'D. MMMM YYYY.',
+        LLL: 'D. MMMM YYYY. H:mm',
+        LLLL: 'dddd, D. MMMM YYYY. H:mm',
+    },
+    calendar: {
+        sameDay: '[данас у] LT',
+        nextDay: '[сутра у] LT',
+        nextWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[у] [недељу] [у] LT';
+                case 3:
+                    return '[у] [среду] [у] LT';
+                case 6:
+                    return '[у] [суботу] [у] LT';
+                case 1:
+                case 2:
+                case 4:
+                case 5:
+                    return '[у] dddd [у] LT';
+            }
+        },
+        lastDay: '[јуче у] LT',
+        lastWeek: function () {
+            var lastWeekDays = [
+                '[прошле] [недеље] [у] LT',
+                '[прошлог] [понедељка] [у] LT',
+                '[прошлог] [уторка] [у] LT',
+                '[прошле] [среде] [у] LT',
+                '[прошлог] [четвртка] [у] LT',
+                '[прошлог] [петка] [у] LT',
+                '[прошле] [суботе] [у] LT',
+            ];
+            return lastWeekDays[this.day()];
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'за %s',
+        past: 'пре %s',
+        s: 'неколико секунди',
+        ss: translator.translate,
+        m: translator.translate,
+        mm: translator.translate,
+        h: translator.translate,
+        hh: translator.translate,
+        d: translator.translate,
+        dd: translator.translate,
+        M: translator.translate,
+        MM: translator.translate,
+        y: translator.translate,
+        yy: translator.translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 1st is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/sr.js b/backend/node_modules/moment/dist/locale/sr.js
new file mode 100644
index 0000000..a407ec7
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/sr.js
@@ -0,0 +1,129 @@
+//! moment.js locale configuration
+//! locale : Serbian [sr]
+//! author : Milan Janačković<milanjanackovic@gmail.com> : https://github.com/milan-j
+//! author : Stefan Crnjaković <stefan@hotmail.rs> : https://github.com/crnjakovic
+
+import moment from '../moment';
+
+var translator = {
+    words: {
+        //Different grammatical cases
+        ss: ['sekunda', 'sekunde', 'sekundi'],
+        m: ['jedan minut', 'jednog minuta'],
+        mm: ['minut', 'minuta', 'minuta'],
+        h: ['jedan sat', 'jednog sata'],
+        hh: ['sat', 'sata', 'sati'],
+        d: ['jedan dan', 'jednog dana'],
+        dd: ['dan', 'dana', 'dana'],
+        M: ['jedan mesec', 'jednog meseca'],
+        MM: ['mesec', 'meseca', 'meseci'],
+        y: ['jednu godinu', 'jedne godine'],
+        yy: ['godinu', 'godine', 'godina'],
+    },
+    correctGrammaticalCase: function (number, wordKey) {
+        if (
+            number % 10 >= 1 &&
+            number % 10 <= 4 &&
+            (number % 100 < 10 || number % 100 >= 20)
+        ) {
+            return number % 10 === 1 ? wordKey[0] : wordKey[1];
+        }
+        return wordKey[2];
+    },
+    translate: function (number, withoutSuffix, key, isFuture) {
+        var wordKey = translator.words[key],
+            word;
+
+        if (key.length === 1) {
+            // Nominativ
+            if (key === 'y' && withoutSuffix) return 'jedna godina';
+            return isFuture || withoutSuffix ? wordKey[0] : wordKey[1];
+        }
+
+        word = translator.correctGrammaticalCase(number, wordKey);
+        // Nominativ
+        if (key === 'yy' && withoutSuffix && word === 'godinu') {
+            return number + ' godina';
+        }
+
+        return number + ' ' + word;
+    },
+};
+
+export default moment.defineLocale('sr', {
+    months: 'januar_februar_mart_april_maj_jun_jul_avgust_septembar_oktobar_novembar_decembar'.split(
+        '_'
+    ),
+    monthsShort:
+        'jan._feb._mar._apr._maj_jun_jul_avg._sep._okt._nov._dec.'.split('_'),
+    monthsParseExact: true,
+    weekdays: 'nedelja_ponedeljak_utorak_sreda_četvrtak_petak_subota'.split(
+        '_'
+    ),
+    weekdaysShort: 'ned._pon._uto._sre._čet._pet._sub.'.split('_'),
+    weekdaysMin: 'ne_po_ut_sr_če_pe_su'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'D. M. YYYY.',
+        LL: 'D. MMMM YYYY.',
+        LLL: 'D. MMMM YYYY. H:mm',
+        LLLL: 'dddd, D. MMMM YYYY. H:mm',
+    },
+    calendar: {
+        sameDay: '[danas u] LT',
+        nextDay: '[sutra u] LT',
+        nextWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[u] [nedelju] [u] LT';
+                case 3:
+                    return '[u] [sredu] [u] LT';
+                case 6:
+                    return '[u] [subotu] [u] LT';
+                case 1:
+                case 2:
+                case 4:
+                case 5:
+                    return '[u] dddd [u] LT';
+            }
+        },
+        lastDay: '[juče u] LT',
+        lastWeek: function () {
+            var lastWeekDays = [
+                '[prošle] [nedelje] [u] LT',
+                '[prošlog] [ponedeljka] [u] LT',
+                '[prošlog] [utorka] [u] LT',
+                '[prošle] [srede] [u] LT',
+                '[prošlog] [četvrtka] [u] LT',
+                '[prošlog] [petka] [u] LT',
+                '[prošle] [subote] [u] LT',
+            ];
+            return lastWeekDays[this.day()];
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'za %s',
+        past: 'pre %s',
+        s: 'nekoliko sekundi',
+        ss: translator.translate,
+        m: translator.translate,
+        mm: translator.translate,
+        h: translator.translate,
+        hh: translator.translate,
+        d: translator.translate,
+        dd: translator.translate,
+        M: translator.translate,
+        MM: translator.translate,
+        y: translator.translate,
+        yy: translator.translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ss.js b/backend/node_modules/moment/dist/locale/ss.js
new file mode 100644
index 0000000..60db499
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ss.js
@@ -0,0 +1,84 @@
+//! moment.js locale configuration
+//! locale : siSwati [ss]
+//! author : Nicolai Davies<mail@nicolai.io> : https://github.com/nicolaidavies
+
+import moment from '../moment';
+
+export default moment.defineLocale('ss', {
+    months: "Bhimbidvwane_Indlovana_Indlov'lenkhulu_Mabasa_Inkhwekhweti_Inhlaba_Kholwane_Ingci_Inyoni_Imphala_Lweti_Ingongoni".split(
+        '_'
+    ),
+    monthsShort: 'Bhi_Ina_Inu_Mab_Ink_Inh_Kho_Igc_Iny_Imp_Lwe_Igo'.split('_'),
+    weekdays:
+        'Lisontfo_Umsombuluko_Lesibili_Lesitsatfu_Lesine_Lesihlanu_Umgcibelo'.split(
+            '_'
+        ),
+    weekdaysShort: 'Lis_Umb_Lsb_Les_Lsi_Lsh_Umg'.split('_'),
+    weekdaysMin: 'Li_Us_Lb_Lt_Ls_Lh_Ug'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'h:mm A',
+        LTS: 'h:mm:ss A',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY h:mm A',
+        LLLL: 'dddd, D MMMM YYYY h:mm A',
+    },
+    calendar: {
+        sameDay: '[Namuhla nga] LT',
+        nextDay: '[Kusasa nga] LT',
+        nextWeek: 'dddd [nga] LT',
+        lastDay: '[Itolo nga] LT',
+        lastWeek: 'dddd [leliphelile] [nga] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'nga %s',
+        past: 'wenteka nga %s',
+        s: 'emizuzwana lomcane',
+        ss: '%d mzuzwana',
+        m: 'umzuzu',
+        mm: '%d emizuzu',
+        h: 'lihora',
+        hh: '%d emahora',
+        d: 'lilanga',
+        dd: '%d emalanga',
+        M: 'inyanga',
+        MM: '%d tinyanga',
+        y: 'umnyaka',
+        yy: '%d iminyaka',
+    },
+    meridiemParse: /ekuseni|emini|entsambama|ebusuku/,
+    meridiem: function (hours, minutes, isLower) {
+        if (hours < 11) {
+            return 'ekuseni';
+        } else if (hours < 15) {
+            return 'emini';
+        } else if (hours < 19) {
+            return 'entsambama';
+        } else {
+            return 'ebusuku';
+        }
+    },
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'ekuseni') {
+            return hour;
+        } else if (meridiem === 'emini') {
+            return hour >= 11 ? hour : hour + 12;
+        } else if (meridiem === 'entsambama' || meridiem === 'ebusuku') {
+            if (hour === 0) {
+                return 0;
+            }
+            return hour + 12;
+        }
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}/,
+    ordinal: '%d',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/sv.js b/backend/node_modules/moment/dist/locale/sv.js
new file mode 100644
index 0000000..4a37cdb
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/sv.js
@@ -0,0 +1,68 @@
+//! moment.js locale configuration
+//! locale : Swedish [sv]
+//! author : Jens Alm : https://github.com/ulmus
+
+import moment from '../moment';
+
+export default moment.defineLocale('sv', {
+    months: 'januari_februari_mars_april_maj_juni_juli_augusti_september_oktober_november_december'.split(
+        '_'
+    ),
+    monthsShort: 'jan_feb_mar_apr_maj_jun_jul_aug_sep_okt_nov_dec'.split('_'),
+    weekdays: 'söndag_måndag_tisdag_onsdag_torsdag_fredag_lördag'.split('_'),
+    weekdaysShort: 'sön_mån_tis_ons_tor_fre_lör'.split('_'),
+    weekdaysMin: 'sö_må_ti_on_to_fr_lö'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'YYYY-MM-DD',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY [kl.] HH:mm',
+        LLLL: 'dddd D MMMM YYYY [kl.] HH:mm',
+        lll: 'D MMM YYYY HH:mm',
+        llll: 'ddd D MMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Idag] LT',
+        nextDay: '[Imorgon] LT',
+        lastDay: '[Igår] LT',
+        nextWeek: '[På] dddd LT',
+        lastWeek: '[I] dddd[s] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'om %s',
+        past: 'för %s sedan',
+        s: 'några sekunder',
+        ss: '%d sekunder',
+        m: 'en minut',
+        mm: '%d minuter',
+        h: 'en timme',
+        hh: '%d timmar',
+        d: 'en dag',
+        dd: '%d dagar',
+        M: 'en månad',
+        MM: '%d månader',
+        y: 'ett år',
+        yy: '%d år',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(\:e|\:a)/,
+    ordinal: function (number) {
+        var b = number % 10,
+            output =
+                ~~((number % 100) / 10) === 1
+                    ? ':e'
+                    : b === 1
+                      ? ':a'
+                      : b === 2
+                        ? ':a'
+                        : b === 3
+                          ? ':e'
+                          : ':e';
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/sw.js b/backend/node_modules/moment/dist/locale/sw.js
new file mode 100644
index 0000000..35a2668
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/sw.js
@@ -0,0 +1,55 @@
+//! moment.js locale configuration
+//! locale : Swahili [sw]
+//! author : Fahad Kassim : https://github.com/fadsel
+
+import moment from '../moment';
+
+export default moment.defineLocale('sw', {
+    months: 'Januari_Februari_Machi_Aprili_Mei_Juni_Julai_Agosti_Septemba_Oktoba_Novemba_Desemba'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mac_Apr_Mei_Jun_Jul_Ago_Sep_Okt_Nov_Des'.split('_'),
+    weekdays:
+        'Jumapili_Jumatatu_Jumanne_Jumatano_Alhamisi_Ijumaa_Jumamosi'.split(
+            '_'
+        ),
+    weekdaysShort: 'Jpl_Jtat_Jnne_Jtan_Alh_Ijm_Jmos'.split('_'),
+    weekdaysMin: 'J2_J3_J4_J5_Al_Ij_J1'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'hh:mm A',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[leo saa] LT',
+        nextDay: '[kesho saa] LT',
+        nextWeek: '[wiki ijayo] dddd [saat] LT',
+        lastDay: '[jana] LT',
+        lastWeek: '[wiki iliyopita] dddd [saat] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s baadaye',
+        past: 'tokea %s',
+        s: 'hivi punde',
+        ss: 'sekunde %d',
+        m: 'dakika moja',
+        mm: 'dakika %d',
+        h: 'saa limoja',
+        hh: 'masaa %d',
+        d: 'siku moja',
+        dd: 'siku %d',
+        M: 'mwezi mmoja',
+        MM: 'miezi %d',
+        y: 'mwaka mmoja',
+        yy: 'miaka %d',
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ta.js b/backend/node_modules/moment/dist/locale/ta.js
new file mode 100644
index 0000000..fdfa1ba
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ta.js
@@ -0,0 +1,131 @@
+//! moment.js locale configuration
+//! locale : Tamil [ta]
+//! author : Arjunkumar Krishnamoorthy : https://github.com/tk120404
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '௧',
+        2: '௨',
+        3: '௩',
+        4: '௪',
+        5: '௫',
+        6: '௬',
+        7: '௭',
+        8: '௮',
+        9: '௯',
+        0: '௦',
+    },
+    numberMap = {
+        '௧': '1',
+        '௨': '2',
+        '௩': '3',
+        '௪': '4',
+        '௫': '5',
+        '௬': '6',
+        '௭': '7',
+        '௮': '8',
+        '௯': '9',
+        '௦': '0',
+    };
+
+export default moment.defineLocale('ta', {
+    months: 'ஜனவரி_பிப்ரவரி_மார்ச்_ஏப்ரல்_மே_ஜூன்_ஜூலை_ஆகஸ்ட்_செப்டெம்பர்_அக்டோபர்_நவம்பர்_டிசம்பர்'.split(
+        '_'
+    ),
+    monthsShort:
+        'ஜனவரி_பிப்ரவரி_மார்ச்_ஏப்ரல்_மே_ஜூன்_ஜூலை_ஆகஸ்ட்_செப்டெம்பர்_அக்டோபர்_நவம்பர்_டிசம்பர்'.split(
+            '_'
+        ),
+    weekdays:
+        'ஞாயிற்றுக்கிழமை_திங்கட்கிழமை_செவ்வாய்கிழமை_புதன்கிழமை_வியாழக்கிழமை_வெள்ளிக்கிழமை_சனிக்கிழமை'.split(
+            '_'
+        ),
+    weekdaysShort: 'ஞாயிறு_திங்கள்_செவ்வாய்_புதன்_வியாழன்_வெள்ளி_சனி'.split(
+        '_'
+    ),
+    weekdaysMin: 'ஞா_தி_செ_பு_வி_வெ_ச'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY, HH:mm',
+        LLLL: 'dddd, D MMMM YYYY, HH:mm',
+    },
+    calendar: {
+        sameDay: '[இன்று] LT',
+        nextDay: '[நாளை] LT',
+        nextWeek: 'dddd, LT',
+        lastDay: '[நேற்று] LT',
+        lastWeek: '[கடந்த வாரம்] dddd, LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s இல்',
+        past: '%s முன்',
+        s: 'ஒரு சில விநாடிகள்',
+        ss: '%d விநாடிகள்',
+        m: 'ஒரு நிமிடம்',
+        mm: '%d நிமிடங்கள்',
+        h: 'ஒரு மணி நேரம்',
+        hh: '%d மணி நேரம்',
+        d: 'ஒரு நாள்',
+        dd: '%d நாட்கள்',
+        M: 'ஒரு மாதம்',
+        MM: '%d மாதங்கள்',
+        y: 'ஒரு வருடம்',
+        yy: '%d ஆண்டுகள்',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}வது/,
+    ordinal: function (number) {
+        return number + 'வது';
+    },
+    preparse: function (string) {
+        return string.replace(/[௧௨௩௪௫௬௭௮௯௦]/g, function (match) {
+            return numberMap[match];
+        });
+    },
+    postformat: function (string) {
+        return string.replace(/\d/g, function (match) {
+            return symbolMap[match];
+        });
+    },
+    // refer http://ta.wikipedia.org/s/1er1
+    meridiemParse: /யாமம்|வைகறை|காலை|நண்பகல்|எற்பாடு|மாலை/,
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 2) {
+            return ' யாமம்';
+        } else if (hour < 6) {
+            return ' வைகறை'; // வைகறை
+        } else if (hour < 10) {
+            return ' காலை'; // காலை
+        } else if (hour < 14) {
+            return ' நண்பகல்'; // நண்பகல்
+        } else if (hour < 18) {
+            return ' எற்பாடு'; // எற்பாடு
+        } else if (hour < 22) {
+            return ' மாலை'; // மாலை
+        } else {
+            return ' யாமம்';
+        }
+    },
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'யாமம்') {
+            return hour < 2 ? hour : hour + 12;
+        } else if (meridiem === 'வைகறை' || meridiem === 'காலை') {
+            return hour;
+        } else if (meridiem === 'நண்பகல்') {
+            return hour >= 10 ? hour : hour + 12;
+        } else {
+            return hour + 12;
+        }
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/te.js b/backend/node_modules/moment/dist/locale/te.js
new file mode 100644
index 0000000..56f9f16
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/te.js
@@ -0,0 +1,88 @@
+//! moment.js locale configuration
+//! locale : Telugu [te]
+//! author : Krishna Chaitanya Thota : https://github.com/kcthota
+
+import moment from '../moment';
+
+export default moment.defineLocale('te', {
+    months: 'జనవరి_ఫిబ్రవరి_మార్చి_ఏప్రిల్_మే_జూన్_జులై_ఆగస్టు_సెప్టెంబర్_అక్టోబర్_నవంబర్_డిసెంబర్'.split(
+        '_'
+    ),
+    monthsShort:
+        'జన._ఫిబ్ర._మార్చి_ఏప్రి._మే_జూన్_జులై_ఆగ._సెప్._అక్టో._నవ._డిసె.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays:
+        'ఆదివారం_సోమవారం_మంగళవారం_బుధవారం_గురువారం_శుక్రవారం_శనివారం'.split(
+            '_'
+        ),
+    weekdaysShort: 'ఆది_సోమ_మంగళ_బుధ_గురు_శుక్ర_శని'.split('_'),
+    weekdaysMin: 'ఆ_సో_మం_బు_గు_శు_శ'.split('_'),
+    longDateFormat: {
+        LT: 'A h:mm',
+        LTS: 'A h:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY, A h:mm',
+        LLLL: 'dddd, D MMMM YYYY, A h:mm',
+    },
+    calendar: {
+        sameDay: '[నేడు] LT',
+        nextDay: '[రేపు] LT',
+        nextWeek: 'dddd, LT',
+        lastDay: '[నిన్న] LT',
+        lastWeek: '[గత] dddd, LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s లో',
+        past: '%s క్రితం',
+        s: 'కొన్ని క్షణాలు',
+        ss: '%d సెకన్లు',
+        m: 'ఒక నిమిషం',
+        mm: '%d నిమిషాలు',
+        h: 'ఒక గంట',
+        hh: '%d గంటలు',
+        d: 'ఒక రోజు',
+        dd: '%d రోజులు',
+        M: 'ఒక నెల',
+        MM: '%d నెలలు',
+        y: 'ఒక సంవత్సరం',
+        yy: '%d సంవత్సరాలు',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}వ/,
+    ordinal: '%dవ',
+    meridiemParse: /రాత్రి|ఉదయం|మధ్యాహ్నం|సాయంత్రం/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'రాత్రి') {
+            return hour < 4 ? hour : hour + 12;
+        } else if (meridiem === 'ఉదయం') {
+            return hour;
+        } else if (meridiem === 'మధ్యాహ్నం') {
+            return hour >= 10 ? hour : hour + 12;
+        } else if (meridiem === 'సాయంత్రం') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'రాత్రి';
+        } else if (hour < 10) {
+            return 'ఉదయం';
+        } else if (hour < 17) {
+            return 'మధ్యాహ్నం';
+        } else if (hour < 20) {
+            return 'సాయంత్రం';
+        } else {
+            return 'రాత్రి';
+        }
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/tet.js b/backend/node_modules/moment/dist/locale/tet.js
new file mode 100644
index 0000000..5f7d95c
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/tet.js
@@ -0,0 +1,68 @@
+//! moment.js locale configuration
+//! locale : Tetun Dili (East Timor) [tet]
+//! author : Joshua Brooks : https://github.com/joshbrooks
+//! author : Onorio De J. Afonso : https://github.com/marobo
+//! author : Sonia Simoes : https://github.com/soniasimoes
+
+import moment from '../moment';
+
+export default moment.defineLocale('tet', {
+    months: 'Janeiru_Fevereiru_Marsu_Abril_Maiu_Juñu_Jullu_Agustu_Setembru_Outubru_Novembru_Dezembru'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Fev_Mar_Abr_Mai_Jun_Jul_Ago_Set_Out_Nov_Dez'.split('_'),
+    weekdays: 'Domingu_Segunda_Tersa_Kuarta_Kinta_Sesta_Sabadu'.split('_'),
+    weekdaysShort: 'Dom_Seg_Ters_Kua_Kint_Sest_Sab'.split('_'),
+    weekdaysMin: 'Do_Seg_Te_Ku_Ki_Ses_Sa'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Ohin iha] LT',
+        nextDay: '[Aban iha] LT',
+        nextWeek: 'dddd [iha] LT',
+        lastDay: '[Horiseik iha] LT',
+        lastWeek: 'dddd [semana kotuk] [iha] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'iha %s',
+        past: '%s liuba',
+        s: 'segundu balun',
+        ss: 'segundu %d',
+        m: 'minutu ida',
+        mm: 'minutu %d',
+        h: 'oras ida',
+        hh: 'oras %d',
+        d: 'loron ida',
+        dd: 'loron %d',
+        M: 'fulan ida',
+        MM: 'fulan %d',
+        y: 'tinan ida',
+        yy: 'tinan %d',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+    ordinal: function (number) {
+        var b = number % 10,
+            output =
+                ~~((number % 100) / 10) === 1
+                    ? 'th'
+                    : b === 1
+                      ? 'st'
+                      : b === 2
+                        ? 'nd'
+                        : b === 3
+                          ? 'rd'
+                          : 'th';
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/tg.js b/backend/node_modules/moment/dist/locale/tg.js
new file mode 100644
index 0000000..60d33c7
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/tg.js
@@ -0,0 +1,117 @@
+//! moment.js locale configuration
+//! locale : Tajik [tg]
+//! author : Orif N. Jr. : https://github.com/orif-jr
+
+import moment from '../moment';
+
+var suffixes = {
+    0: '-ум',
+    1: '-ум',
+    2: '-юм',
+    3: '-юм',
+    4: '-ум',
+    5: '-ум',
+    6: '-ум',
+    7: '-ум',
+    8: '-ум',
+    9: '-ум',
+    10: '-ум',
+    12: '-ум',
+    13: '-ум',
+    20: '-ум',
+    30: '-юм',
+    40: '-ум',
+    50: '-ум',
+    60: '-ум',
+    70: '-ум',
+    80: '-ум',
+    90: '-ум',
+    100: '-ум',
+};
+
+export default moment.defineLocale('tg', {
+    months: {
+        format: 'январи_феврали_марти_апрели_майи_июни_июли_августи_сентябри_октябри_ноябри_декабри'.split(
+            '_'
+        ),
+        standalone:
+            'январ_феврал_март_апрел_май_июн_июл_август_сентябр_октябр_ноябр_декабр'.split(
+                '_'
+            ),
+    },
+    monthsShort: 'янв_фев_мар_апр_май_июн_июл_авг_сен_окт_ноя_дек'.split('_'),
+    weekdays: 'якшанбе_душанбе_сешанбе_чоршанбе_панҷшанбе_ҷумъа_шанбе'.split(
+        '_'
+    ),
+    weekdaysShort: 'яшб_дшб_сшб_чшб_пшб_ҷум_шнб'.split('_'),
+    weekdaysMin: 'яш_дш_сш_чш_пш_ҷм_шб'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Имрӯз соати] LT',
+        nextDay: '[Фардо соати] LT',
+        lastDay: '[Дирӯз соати] LT',
+        nextWeek: 'dddd[и] [ҳафтаи оянда соати] LT',
+        lastWeek: 'dddd[и] [ҳафтаи гузашта соати] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'баъди %s',
+        past: '%s пеш',
+        s: 'якчанд сония',
+        m: 'як дақиқа',
+        mm: '%d дақиқа',
+        h: 'як соат',
+        hh: '%d соат',
+        d: 'як рӯз',
+        dd: '%d рӯз',
+        M: 'як моҳ',
+        MM: '%d моҳ',
+        y: 'як сол',
+        yy: '%d сол',
+    },
+    meridiemParse: /шаб|субҳ|рӯз|бегоҳ/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'шаб') {
+            return hour < 4 ? hour : hour + 12;
+        } else if (meridiem === 'субҳ') {
+            return hour;
+        } else if (meridiem === 'рӯз') {
+            return hour >= 11 ? hour : hour + 12;
+        } else if (meridiem === 'бегоҳ') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'шаб';
+        } else if (hour < 11) {
+            return 'субҳ';
+        } else if (hour < 16) {
+            return 'рӯз';
+        } else if (hour < 19) {
+            return 'бегоҳ';
+        } else {
+            return 'шаб';
+        }
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}-(ум|юм)/,
+    ordinal: function (number) {
+        var a = number % 10,
+            b = number >= 100 ? 100 : null;
+        return number + (suffixes[number] || suffixes[a] || suffixes[b]);
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 1th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/th.js b/backend/node_modules/moment/dist/locale/th.js
new file mode 100644
index 0000000..b3a5560
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/th.js
@@ -0,0 +1,65 @@
+//! moment.js locale configuration
+//! locale : Thai [th]
+//! author : Kridsada Thanabulpong : https://github.com/sirn
+
+import moment from '../moment';
+
+export default moment.defineLocale('th', {
+    months: 'มกราคม_กุมภาพันธ์_มีนาคม_เมษายน_พฤษภาคม_มิถุนายน_กรกฎาคม_สิงหาคม_กันยายน_ตุลาคม_พฤศจิกายน_ธันวาคม'.split(
+        '_'
+    ),
+    monthsShort:
+        'ม.ค._ก.พ._มี.ค._เม.ย._พ.ค._มิ.ย._ก.ค._ส.ค._ก.ย._ต.ค._พ.ย._ธ.ค.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'อาทิตย์_จันทร์_อังคาร_พุธ_พฤหัสบดี_ศุกร์_เสาร์'.split('_'),
+    weekdaysShort: 'อาทิตย์_จันทร์_อังคาร_พุธ_พฤหัส_ศุกร์_เสาร์'.split('_'), // yes, three characters difference
+    weekdaysMin: 'อา._จ._อ._พ._พฤ._ศ._ส.'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY เวลา H:mm',
+        LLLL: 'วันddddที่ D MMMM YYYY เวลา H:mm',
+    },
+    meridiemParse: /ก่อนเที่ยง|หลังเที่ยง/,
+    isPM: function (input) {
+        return input === 'หลังเที่ยง';
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'ก่อนเที่ยง';
+        } else {
+            return 'หลังเที่ยง';
+        }
+    },
+    calendar: {
+        sameDay: '[วันนี้ เวลา] LT',
+        nextDay: '[พรุ่งนี้ เวลา] LT',
+        nextWeek: 'dddd[หน้า เวลา] LT',
+        lastDay: '[เมื่อวานนี้ เวลา] LT',
+        lastWeek: '[วัน]dddd[ที่แล้ว เวลา] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'อีก %s',
+        past: '%sที่แล้ว',
+        s: 'ไม่กี่วินาที',
+        ss: '%d วินาที',
+        m: '1 นาที',
+        mm: '%d นาที',
+        h: '1 ชั่วโมง',
+        hh: '%d ชั่วโมง',
+        d: '1 วัน',
+        dd: '%d วัน',
+        w: '1 สัปดาห์',
+        ww: '%d สัปดาห์',
+        M: '1 เดือน',
+        MM: '%d เดือน',
+        y: '1 ปี',
+        yy: '%d ปี',
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/tk.js b/backend/node_modules/moment/dist/locale/tk.js
new file mode 100644
index 0000000..b26f99e
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/tk.js
@@ -0,0 +1,91 @@
+//! moment.js locale configuration
+//! locale : Turkmen [tk]
+//! author : Atamyrat Abdyrahmanov : https://github.com/atamyratabdy
+
+import moment from '../moment';
+
+var suffixes = {
+    1: "'inji",
+    5: "'inji",
+    8: "'inji",
+    70: "'inji",
+    80: "'inji",
+    2: "'nji",
+    7: "'nji",
+    20: "'nji",
+    50: "'nji",
+    3: "'ünji",
+    4: "'ünji",
+    100: "'ünji",
+    6: "'njy",
+    9: "'unjy",
+    10: "'unjy",
+    30: "'unjy",
+    60: "'ynjy",
+    90: "'ynjy",
+};
+
+export default moment.defineLocale('tk', {
+    months: 'Ýanwar_Fewral_Mart_Aprel_Maý_Iýun_Iýul_Awgust_Sentýabr_Oktýabr_Noýabr_Dekabr'.split(
+        '_'
+    ),
+    monthsShort: 'Ýan_Few_Mar_Apr_Maý_Iýn_Iýl_Awg_Sen_Okt_Noý_Dek'.split('_'),
+    weekdays: 'Ýekşenbe_Duşenbe_Sişenbe_Çarşenbe_Penşenbe_Anna_Şenbe'.split(
+        '_'
+    ),
+    weekdaysShort: 'Ýek_Duş_Siş_Çar_Pen_Ann_Şen'.split('_'),
+    weekdaysMin: 'Ýk_Dş_Sş_Çr_Pn_An_Şn'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[bugün sagat] LT',
+        nextDay: '[ertir sagat] LT',
+        nextWeek: '[indiki] dddd [sagat] LT',
+        lastDay: '[düýn] LT',
+        lastWeek: '[geçen] dddd [sagat] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s soň',
+        past: '%s öň',
+        s: 'birnäçe sekunt',
+        m: 'bir minut',
+        mm: '%d minut',
+        h: 'bir sagat',
+        hh: '%d sagat',
+        d: 'bir gün',
+        dd: '%d gün',
+        M: 'bir aý',
+        MM: '%d aý',
+        y: 'bir ýyl',
+        yy: '%d ýyl',
+    },
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'd':
+            case 'D':
+            case 'Do':
+            case 'DD':
+                return number;
+            default:
+                if (number === 0) {
+                    // special case for zero
+                    return number + "'unjy";
+                }
+                var a = number % 10,
+                    b = (number % 100) - a,
+                    c = number >= 100 ? 100 : null;
+                return number + (suffixes[a] || suffixes[b] || suffixes[c]);
+        }
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/tl-ph.js b/backend/node_modules/moment/dist/locale/tl-ph.js
new file mode 100644
index 0000000..581d74a
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/tl-ph.js
@@ -0,0 +1,57 @@
+//! moment.js locale configuration
+//! locale : Tagalog (Philippines) [tl-ph]
+//! author : Dan Hagman : https://github.com/hagmandan
+
+import moment from '../moment';
+
+export default moment.defineLocale('tl-ph', {
+    months: 'Enero_Pebrero_Marso_Abril_Mayo_Hunyo_Hulyo_Agosto_Setyembre_Oktubre_Nobyembre_Disyembre'.split(
+        '_'
+    ),
+    monthsShort: 'Ene_Peb_Mar_Abr_May_Hun_Hul_Ago_Set_Okt_Nob_Dis'.split('_'),
+    weekdays: 'Linggo_Lunes_Martes_Miyerkules_Huwebes_Biyernes_Sabado'.split(
+        '_'
+    ),
+    weekdaysShort: 'Lin_Lun_Mar_Miy_Huw_Biy_Sab'.split('_'),
+    weekdaysMin: 'Li_Lu_Ma_Mi_Hu_Bi_Sab'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'MM/D/YYYY',
+        LL: 'MMMM D, YYYY',
+        LLL: 'MMMM D, YYYY HH:mm',
+        LLLL: 'dddd, MMMM DD, YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: 'LT [ngayong araw]',
+        nextDay: '[Bukas ng] LT',
+        nextWeek: 'LT [sa susunod na] dddd',
+        lastDay: 'LT [kahapon]',
+        lastWeek: 'LT [noong nakaraang] dddd',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'sa loob ng %s',
+        past: '%s ang nakalipas',
+        s: 'ilang segundo',
+        ss: '%d segundo',
+        m: 'isang minuto',
+        mm: '%d minuto',
+        h: 'isang oras',
+        hh: '%d oras',
+        d: 'isang araw',
+        dd: '%d araw',
+        M: 'isang buwan',
+        MM: '%d buwan',
+        y: 'isang taon',
+        yy: '%d taon',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}/,
+    ordinal: function (number) {
+        return number;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/tlh.js b/backend/node_modules/moment/dist/locale/tlh.js
new file mode 100644
index 0000000..ccc5d29
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/tlh.js
@@ -0,0 +1,124 @@
+//! moment.js locale configuration
+//! locale : Klingon [tlh]
+//! author : Dominika Kruk : https://github.com/amaranthrose
+
+import moment from '../moment';
+
+var numbersNouns = 'pagh_wa’_cha’_wej_loS_vagh_jav_Soch_chorgh_Hut'.split('_');
+
+function translateFuture(output) {
+    var time = output;
+    time =
+        output.indexOf('jaj') !== -1
+            ? time.slice(0, -3) + 'leS'
+            : output.indexOf('jar') !== -1
+              ? time.slice(0, -3) + 'waQ'
+              : output.indexOf('DIS') !== -1
+                ? time.slice(0, -3) + 'nem'
+                : time + ' pIq';
+    return time;
+}
+
+function translatePast(output) {
+    var time = output;
+    time =
+        output.indexOf('jaj') !== -1
+            ? time.slice(0, -3) + 'Hu’'
+            : output.indexOf('jar') !== -1
+              ? time.slice(0, -3) + 'wen'
+              : output.indexOf('DIS') !== -1
+                ? time.slice(0, -3) + 'ben'
+                : time + ' ret';
+    return time;
+}
+
+function translate(number, withoutSuffix, string, isFuture) {
+    var numberNoun = numberAsNoun(number);
+    switch (string) {
+        case 'ss':
+            return numberNoun + ' lup';
+        case 'mm':
+            return numberNoun + ' tup';
+        case 'hh':
+            return numberNoun + ' rep';
+        case 'dd':
+            return numberNoun + ' jaj';
+        case 'MM':
+            return numberNoun + ' jar';
+        case 'yy':
+            return numberNoun + ' DIS';
+    }
+}
+
+function numberAsNoun(number) {
+    var hundred = Math.floor((number % 1000) / 100),
+        ten = Math.floor((number % 100) / 10),
+        one = number % 10,
+        word = '';
+    if (hundred > 0) {
+        word += numbersNouns[hundred] + 'vatlh';
+    }
+    if (ten > 0) {
+        word += (word !== '' ? ' ' : '') + numbersNouns[ten] + 'maH';
+    }
+    if (one > 0) {
+        word += (word !== '' ? ' ' : '') + numbersNouns[one];
+    }
+    return word === '' ? 'pagh' : word;
+}
+
+export default moment.defineLocale('tlh', {
+    months: 'tera’ jar wa’_tera’ jar cha’_tera’ jar wej_tera’ jar loS_tera’ jar vagh_tera’ jar jav_tera’ jar Soch_tera’ jar chorgh_tera’ jar Hut_tera’ jar wa’maH_tera’ jar wa’maH wa’_tera’ jar wa’maH cha’'.split(
+        '_'
+    ),
+    monthsShort:
+        'jar wa’_jar cha’_jar wej_jar loS_jar vagh_jar jav_jar Soch_jar chorgh_jar Hut_jar wa’maH_jar wa’maH wa’_jar wa’maH cha’'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'lojmItjaj_DaSjaj_povjaj_ghItlhjaj_loghjaj_buqjaj_ghInjaj'.split(
+        '_'
+    ),
+    weekdaysShort:
+        'lojmItjaj_DaSjaj_povjaj_ghItlhjaj_loghjaj_buqjaj_ghInjaj'.split('_'),
+    weekdaysMin:
+        'lojmItjaj_DaSjaj_povjaj_ghItlhjaj_loghjaj_buqjaj_ghInjaj'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[DaHjaj] LT',
+        nextDay: '[wa’leS] LT',
+        nextWeek: 'LLL',
+        lastDay: '[wa’Hu’] LT',
+        lastWeek: 'LLL',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: translateFuture,
+        past: translatePast,
+        s: 'puS lup',
+        ss: translate,
+        m: 'wa’ tup',
+        mm: translate,
+        h: 'wa’ rep',
+        hh: translate,
+        d: 'wa’ jaj',
+        dd: translate,
+        M: 'wa’ jar',
+        MM: translate,
+        y: 'wa’ DIS',
+        yy: translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/tr.js b/backend/node_modules/moment/dist/locale/tr.js
new file mode 100644
index 0000000..c5abbdc
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/tr.js
@@ -0,0 +1,106 @@
+//! moment.js locale configuration
+//! locale : Turkish [tr]
+//! authors : Erhan Gundogan : https://github.com/erhangundogan,
+//!           Burak Yiğit Kaya: https://github.com/BYK
+
+import moment from '../moment';
+
+var suffixes = {
+    1: "'inci",
+    5: "'inci",
+    8: "'inci",
+    70: "'inci",
+    80: "'inci",
+    2: "'nci",
+    7: "'nci",
+    20: "'nci",
+    50: "'nci",
+    3: "'üncü",
+    4: "'üncü",
+    100: "'üncü",
+    6: "'ncı",
+    9: "'uncu",
+    10: "'uncu",
+    30: "'uncu",
+    60: "'ıncı",
+    90: "'ıncı",
+};
+
+export default moment.defineLocale('tr', {
+    months: 'Ocak_Şubat_Mart_Nisan_Mayıs_Haziran_Temmuz_Ağustos_Eylül_Ekim_Kasım_Aralık'.split(
+        '_'
+    ),
+    monthsShort: 'Oca_Şub_Mar_Nis_May_Haz_Tem_Ağu_Eyl_Eki_Kas_Ara'.split('_'),
+    weekdays: 'Pazar_Pazartesi_Salı_Çarşamba_Perşembe_Cuma_Cumartesi'.split(
+        '_'
+    ),
+    weekdaysShort: 'Paz_Pzt_Sal_Çar_Per_Cum_Cmt'.split('_'),
+    weekdaysMin: 'Pz_Pt_Sa_Ça_Pe_Cu_Ct'.split('_'),
+    meridiem: function (hours, minutes, isLower) {
+        if (hours < 12) {
+            return isLower ? 'öö' : 'ÖÖ';
+        } else {
+            return isLower ? 'ös' : 'ÖS';
+        }
+    },
+    meridiemParse: /öö|ÖÖ|ös|ÖS/,
+    isPM: function (input) {
+        return input === 'ös' || input === 'ÖS';
+    },
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[bugün saat] LT',
+        nextDay: '[yarın saat] LT',
+        nextWeek: '[gelecek] dddd [saat] LT',
+        lastDay: '[dün] LT',
+        lastWeek: '[geçen] dddd [saat] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s sonra',
+        past: '%s önce',
+        s: 'birkaç saniye',
+        ss: '%d saniye',
+        m: 'bir dakika',
+        mm: '%d dakika',
+        h: 'bir saat',
+        hh: '%d saat',
+        d: 'bir gün',
+        dd: '%d gün',
+        w: 'bir hafta',
+        ww: '%d hafta',
+        M: 'bir ay',
+        MM: '%d ay',
+        y: 'bir yıl',
+        yy: '%d yıl',
+    },
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'd':
+            case 'D':
+            case 'Do':
+            case 'DD':
+                return number;
+            default:
+                if (number === 0) {
+                    // special case for zero
+                    return number + "'ıncı";
+                }
+                var a = number % 10,
+                    b = (number % 100) - a,
+                    c = number >= 100 ? 100 : null;
+                return number + (suffixes[a] || suffixes[b] || suffixes[c]);
+        }
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/tzl.js b/backend/node_modules/moment/dist/locale/tzl.js
new file mode 100644
index 0000000..5447082
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/tzl.js
@@ -0,0 +1,89 @@
+//! moment.js locale configuration
+//! locale : Talossan [tzl]
+//! author : Robin van der Vliet : https://github.com/robin0van0der0v
+//! author : Iustì Canun
+
+import moment from '../moment';
+
+// After the year there should be a slash and the amount of years since December 26, 1979 in Roman numerals.
+// This is currently too difficult (maybe even impossible) to add.
+export default moment.defineLocale('tzl', {
+    months: 'Januar_Fevraglh_Març_Avrïu_Mai_Gün_Julia_Guscht_Setemvar_Listopäts_Noemvar_Zecemvar'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Fev_Mar_Avr_Mai_Gün_Jul_Gus_Set_Lis_Noe_Zec'.split('_'),
+    weekdays: 'Súladi_Lúneçi_Maitzi_Márcuri_Xhúadi_Viénerçi_Sáturi'.split('_'),
+    weekdaysShort: 'Súl_Lún_Mai_Már_Xhú_Vié_Sát'.split('_'),
+    weekdaysMin: 'Sú_Lú_Ma_Má_Xh_Vi_Sá'.split('_'),
+    longDateFormat: {
+        LT: 'HH.mm',
+        LTS: 'HH.mm.ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM [dallas] YYYY',
+        LLL: 'D. MMMM [dallas] YYYY HH.mm',
+        LLLL: 'dddd, [li] D. MMMM [dallas] YYYY HH.mm',
+    },
+    meridiemParse: /d\'o|d\'a/i,
+    isPM: function (input) {
+        return "d'o" === input.toLowerCase();
+    },
+    meridiem: function (hours, minutes, isLower) {
+        if (hours > 11) {
+            return isLower ? "d'o" : "D'O";
+        } else {
+            return isLower ? "d'a" : "D'A";
+        }
+    },
+    calendar: {
+        sameDay: '[oxhi à] LT',
+        nextDay: '[demà à] LT',
+        nextWeek: 'dddd [à] LT',
+        lastDay: '[ieiri à] LT',
+        lastWeek: '[sür el] dddd [lasteu à] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'osprei %s',
+        past: 'ja%s',
+        s: processRelativeTime,
+        ss: processRelativeTime,
+        m: processRelativeTime,
+        mm: processRelativeTime,
+        h: processRelativeTime,
+        hh: processRelativeTime,
+        d: processRelativeTime,
+        dd: processRelativeTime,
+        M: processRelativeTime,
+        MM: processRelativeTime,
+        y: processRelativeTime,
+        yy: processRelativeTime,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
+
+function processRelativeTime(number, withoutSuffix, key, isFuture) {
+    var format = {
+        s: ['viensas secunds', "'iensas secunds"],
+        ss: [number + ' secunds', '' + number + ' secunds'],
+        m: ["'n míut", "'iens míut"],
+        mm: [number + ' míuts', '' + number + ' míuts'],
+        h: ["'n þora", "'iensa þora"],
+        hh: [number + ' þoras', '' + number + ' þoras'],
+        d: ["'n ziua", "'iensa ziua"],
+        dd: [number + ' ziuas', '' + number + ' ziuas'],
+        M: ["'n mes", "'iens mes"],
+        MM: [number + ' mesen', '' + number + ' mesen'],
+        y: ["'n ar", "'iens ar"],
+        yy: [number + ' ars', '' + number + ' ars'],
+    };
+    return isFuture
+        ? format[key][0]
+        : withoutSuffix
+          ? format[key][0]
+          : format[key][1];
+}
diff --git a/backend/node_modules/moment/dist/locale/tzm-latn.js b/backend/node_modules/moment/dist/locale/tzm-latn.js
new file mode 100644
index 0000000..6a427d8
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/tzm-latn.js
@@ -0,0 +1,54 @@
+//! moment.js locale configuration
+//! locale : Central Atlas Tamazight Latin [tzm-latn]
+//! author : Abdel Said : https://github.com/abdelsaid
+
+import moment from '../moment';
+
+export default moment.defineLocale('tzm-latn', {
+    months: 'innayr_brˤayrˤ_marˤsˤ_ibrir_mayyw_ywnyw_ywlywz_ɣwšt_šwtanbir_ktˤwbrˤ_nwwanbir_dwjnbir'.split(
+        '_'
+    ),
+    monthsShort:
+        'innayr_brˤayrˤ_marˤsˤ_ibrir_mayyw_ywnyw_ywlywz_ɣwšt_šwtanbir_ktˤwbrˤ_nwwanbir_dwjnbir'.split(
+            '_'
+        ),
+    weekdays: 'asamas_aynas_asinas_akras_akwas_asimwas_asiḍyas'.split('_'),
+    weekdaysShort: 'asamas_aynas_asinas_akras_akwas_asimwas_asiḍyas'.split('_'),
+    weekdaysMin: 'asamas_aynas_asinas_akras_akwas_asimwas_asiḍyas'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[asdkh g] LT',
+        nextDay: '[aska g] LT',
+        nextWeek: 'dddd [g] LT',
+        lastDay: '[assant g] LT',
+        lastWeek: 'dddd [g] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'dadkh s yan %s',
+        past: 'yan %s',
+        s: 'imik',
+        ss: '%d imik',
+        m: 'minuḍ',
+        mm: '%d minuḍ',
+        h: 'saɛa',
+        hh: '%d tassaɛin',
+        d: 'ass',
+        dd: '%d ossan',
+        M: 'ayowr',
+        MM: '%d iyyirn',
+        y: 'asgas',
+        yy: '%d isgasn',
+    },
+    week: {
+        dow: 6, // Saturday is the first day of the week.
+        doy: 12, // The week that contains Jan 12th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/tzm.js b/backend/node_modules/moment/dist/locale/tzm.js
new file mode 100644
index 0000000..1e5d597
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/tzm.js
@@ -0,0 +1,54 @@
+//! moment.js locale configuration
+//! locale : Central Atlas Tamazight [tzm]
+//! author : Abdel Said : https://github.com/abdelsaid
+
+import moment from '../moment';
+
+export default moment.defineLocale('tzm', {
+    months: 'ⵉⵏⵏⴰⵢⵔ_ⴱⵕⴰⵢⵕ_ⵎⴰⵕⵚ_ⵉⴱⵔⵉⵔ_ⵎⴰⵢⵢⵓ_ⵢⵓⵏⵢⵓ_ⵢⵓⵍⵢⵓⵣ_ⵖⵓⵛⵜ_ⵛⵓⵜⴰⵏⴱⵉⵔ_ⴽⵟⵓⴱⵕ_ⵏⵓⵡⴰⵏⴱⵉⵔ_ⴷⵓⵊⵏⴱⵉⵔ'.split(
+        '_'
+    ),
+    monthsShort:
+        'ⵉⵏⵏⴰⵢⵔ_ⴱⵕⴰⵢⵕ_ⵎⴰⵕⵚ_ⵉⴱⵔⵉⵔ_ⵎⴰⵢⵢⵓ_ⵢⵓⵏⵢⵓ_ⵢⵓⵍⵢⵓⵣ_ⵖⵓⵛⵜ_ⵛⵓⵜⴰⵏⴱⵉⵔ_ⴽⵟⵓⴱⵕ_ⵏⵓⵡⴰⵏⴱⵉⵔ_ⴷⵓⵊⵏⴱⵉⵔ'.split(
+            '_'
+        ),
+    weekdays: 'ⴰⵙⴰⵎⴰⵙ_ⴰⵢⵏⴰⵙ_ⴰⵙⵉⵏⴰⵙ_ⴰⴽⵔⴰⵙ_ⴰⴽⵡⴰⵙ_ⴰⵙⵉⵎⵡⴰⵙ_ⴰⵙⵉⴹⵢⴰⵙ'.split('_'),
+    weekdaysShort: 'ⴰⵙⴰⵎⴰⵙ_ⴰⵢⵏⴰⵙ_ⴰⵙⵉⵏⴰⵙ_ⴰⴽⵔⴰⵙ_ⴰⴽⵡⴰⵙ_ⴰⵙⵉⵎⵡⴰⵙ_ⴰⵙⵉⴹⵢⴰⵙ'.split('_'),
+    weekdaysMin: 'ⴰⵙⴰⵎⴰⵙ_ⴰⵢⵏⴰⵙ_ⴰⵙⵉⵏⴰⵙ_ⴰⴽⵔⴰⵙ_ⴰⴽⵡⴰⵙ_ⴰⵙⵉⵎⵡⴰⵙ_ⴰⵙⵉⴹⵢⴰⵙ'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[ⴰⵙⴷⵅ ⴴ] LT',
+        nextDay: '[ⴰⵙⴽⴰ ⴴ] LT',
+        nextWeek: 'dddd [ⴴ] LT',
+        lastDay: '[ⴰⵚⴰⵏⵜ ⴴ] LT',
+        lastWeek: 'dddd [ⴴ] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'ⴷⴰⴷⵅ ⵙ ⵢⴰⵏ %s',
+        past: 'ⵢⴰⵏ %s',
+        s: 'ⵉⵎⵉⴽ',
+        ss: '%d ⵉⵎⵉⴽ',
+        m: 'ⵎⵉⵏⵓⴺ',
+        mm: '%d ⵎⵉⵏⵓⴺ',
+        h: 'ⵙⴰⵄⴰ',
+        hh: '%d ⵜⴰⵙⵙⴰⵄⵉⵏ',
+        d: 'ⴰⵙⵙ',
+        dd: '%d oⵙⵙⴰⵏ',
+        M: 'ⴰⵢoⵓⵔ',
+        MM: '%d ⵉⵢⵢⵉⵔⵏ',
+        y: 'ⴰⵙⴳⴰⵙ',
+        yy: '%d ⵉⵙⴳⴰⵙⵏ',
+    },
+    week: {
+        dow: 6, // Saturday is the first day of the week.
+        doy: 12, // The week that contains Jan 12th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ug-cn.js b/backend/node_modules/moment/dist/locale/ug-cn.js
new file mode 100644
index 0000000..ad6fa94
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ug-cn.js
@@ -0,0 +1,111 @@
+//! moment.js locale configuration
+//! locale : Uyghur (China) [ug-cn]
+//! author: boyaq : https://github.com/boyaq
+
+import moment from '../moment';
+
+export default moment.defineLocale('ug-cn', {
+    months: 'يانۋار_فېۋرال_مارت_ئاپرېل_ماي_ئىيۇن_ئىيۇل_ئاۋغۇست_سېنتەبىر_ئۆكتەبىر_نويابىر_دېكابىر'.split(
+        '_'
+    ),
+    monthsShort:
+        'يانۋار_فېۋرال_مارت_ئاپرېل_ماي_ئىيۇن_ئىيۇل_ئاۋغۇست_سېنتەبىر_ئۆكتەبىر_نويابىر_دېكابىر'.split(
+            '_'
+        ),
+    weekdays: 'يەكشەنبە_دۈشەنبە_سەيشەنبە_چارشەنبە_پەيشەنبە_جۈمە_شەنبە'.split(
+        '_'
+    ),
+    weekdaysShort: 'يە_دۈ_سە_چا_پە_جۈ_شە'.split('_'),
+    weekdaysMin: 'يە_دۈ_سە_چا_پە_جۈ_شە'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'YYYY-MM-DD',
+        LL: 'YYYY-يىلىM-ئاينىڭD-كۈنى',
+        LLL: 'YYYY-يىلىM-ئاينىڭD-كۈنى، HH:mm',
+        LLLL: 'dddd، YYYY-يىلىM-ئاينىڭD-كۈنى، HH:mm',
+    },
+    meridiemParse: /يېرىم كېچە|سەھەر|چۈشتىن بۇرۇن|چۈش|چۈشتىن كېيىن|كەچ/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (
+            meridiem === 'يېرىم كېچە' ||
+            meridiem === 'سەھەر' ||
+            meridiem === 'چۈشتىن بۇرۇن'
+        ) {
+            return hour;
+        } else if (meridiem === 'چۈشتىن كېيىن' || meridiem === 'كەچ') {
+            return hour + 12;
+        } else {
+            return hour >= 11 ? hour : hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        var hm = hour * 100 + minute;
+        if (hm < 600) {
+            return 'يېرىم كېچە';
+        } else if (hm < 900) {
+            return 'سەھەر';
+        } else if (hm < 1130) {
+            return 'چۈشتىن بۇرۇن';
+        } else if (hm < 1230) {
+            return 'چۈش';
+        } else if (hm < 1800) {
+            return 'چۈشتىن كېيىن';
+        } else {
+            return 'كەچ';
+        }
+    },
+    calendar: {
+        sameDay: '[بۈگۈن سائەت] LT',
+        nextDay: '[ئەتە سائەت] LT',
+        nextWeek: '[كېلەركى] dddd [سائەت] LT',
+        lastDay: '[تۆنۈگۈن] LT',
+        lastWeek: '[ئالدىنقى] dddd [سائەت] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s كېيىن',
+        past: '%s بۇرۇن',
+        s: 'نەچچە سېكونت',
+        ss: '%d سېكونت',
+        m: 'بىر مىنۇت',
+        mm: '%d مىنۇت',
+        h: 'بىر سائەت',
+        hh: '%d سائەت',
+        d: 'بىر كۈن',
+        dd: '%d كۈن',
+        M: 'بىر ئاي',
+        MM: '%d ئاي',
+        y: 'بىر يىل',
+        yy: '%d يىل',
+    },
+
+    dayOfMonthOrdinalParse: /\d{1,2}(-كۈنى|-ئاي|-ھەپتە)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'd':
+            case 'D':
+            case 'DDD':
+                return number + '-كۈنى';
+            case 'w':
+            case 'W':
+                return number + '-ھەپتە';
+            default:
+                return number;
+        }
+    },
+    preparse: function (string) {
+        return string.replace(/،/g, ',');
+    },
+    postformat: function (string) {
+        return string.replace(/,/g, '،');
+    },
+    week: {
+        // GB/T 7408-1994《数据元和交换格式·信息交换·日期和时间表示法》与ISO 8601:1988等效
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 1st is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/uk.js b/backend/node_modules/moment/dist/locale/uk.js
new file mode 100644
index 0000000..670ffcc
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/uk.js
@@ -0,0 +1,167 @@
+//! moment.js locale configuration
+//! locale : Ukrainian [uk]
+//! author : zemlanin : https://github.com/zemlanin
+//! Author : Menelion Elensúle : https://github.com/Oire
+
+import moment from '../moment';
+
+function plural(word, num) {
+    var forms = word.split('_');
+    return num % 10 === 1 && num % 100 !== 11
+        ? forms[0]
+        : num % 10 >= 2 && num % 10 <= 4 && (num % 100 < 10 || num % 100 >= 20)
+          ? forms[1]
+          : forms[2];
+}
+function relativeTimeWithPlural(number, withoutSuffix, key) {
+    var format = {
+        ss: withoutSuffix ? 'секунда_секунди_секунд' : 'секунду_секунди_секунд',
+        mm: withoutSuffix ? 'хвилина_хвилини_хвилин' : 'хвилину_хвилини_хвилин',
+        hh: withoutSuffix ? 'година_години_годин' : 'годину_години_годин',
+        dd: 'день_дні_днів',
+        MM: 'місяць_місяці_місяців',
+        yy: 'рік_роки_років',
+    };
+    if (key === 'm') {
+        return withoutSuffix ? 'хвилина' : 'хвилину';
+    } else if (key === 'h') {
+        return withoutSuffix ? 'година' : 'годину';
+    } else {
+        return number + ' ' + plural(format[key], +number);
+    }
+}
+function weekdaysCaseReplace(m, format) {
+    var weekdays = {
+            nominative:
+                'неділя_понеділок_вівторок_середа_четвер_п’ятниця_субота'.split(
+                    '_'
+                ),
+            accusative:
+                'неділю_понеділок_вівторок_середу_четвер_п’ятницю_суботу'.split(
+                    '_'
+                ),
+            genitive:
+                'неділі_понеділка_вівторка_середи_четверга_п’ятниці_суботи'.split(
+                    '_'
+                ),
+        },
+        nounCase;
+
+    if (m === true) {
+        return weekdays['nominative']
+            .slice(1, 7)
+            .concat(weekdays['nominative'].slice(0, 1));
+    }
+    if (!m) {
+        return weekdays['nominative'];
+    }
+
+    nounCase = /(\[[ВвУу]\]) ?dddd/.test(format)
+        ? 'accusative'
+        : /\[?(?:минулої|наступної)? ?\] ?dddd/.test(format)
+          ? 'genitive'
+          : 'nominative';
+    return weekdays[nounCase][m.day()];
+}
+function processHoursFunction(str) {
+    return function () {
+        return str + 'о' + (this.hours() === 11 ? 'б' : '') + '] LT';
+    };
+}
+
+export default moment.defineLocale('uk', {
+    months: {
+        format: 'січня_лютого_березня_квітня_травня_червня_липня_серпня_вересня_жовтня_листопада_грудня'.split(
+            '_'
+        ),
+        standalone:
+            'січень_лютий_березень_квітень_травень_червень_липень_серпень_вересень_жовтень_листопад_грудень'.split(
+                '_'
+            ),
+    },
+    monthsShort: 'січ_лют_бер_квіт_трав_черв_лип_серп_вер_жовт_лист_груд'.split(
+        '_'
+    ),
+    weekdays: weekdaysCaseReplace,
+    weekdaysShort: 'нд_пн_вт_ср_чт_пт_сб'.split('_'),
+    weekdaysMin: 'нд_пн_вт_ср_чт_пт_сб'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY р.',
+        LLL: 'D MMMM YYYY р., HH:mm',
+        LLLL: 'dddd, D MMMM YYYY р., HH:mm',
+    },
+    calendar: {
+        sameDay: processHoursFunction('[Сьогодні '),
+        nextDay: processHoursFunction('[Завтра '),
+        lastDay: processHoursFunction('[Вчора '),
+        nextWeek: processHoursFunction('[У] dddd ['),
+        lastWeek: function () {
+            switch (this.day()) {
+                case 0:
+                case 3:
+                case 5:
+                case 6:
+                    return processHoursFunction('[Минулої] dddd [').call(this);
+                case 1:
+                case 2:
+                case 4:
+                    return processHoursFunction('[Минулого] dddd [').call(this);
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'за %s',
+        past: '%s тому',
+        s: 'декілька секунд',
+        ss: relativeTimeWithPlural,
+        m: relativeTimeWithPlural,
+        mm: relativeTimeWithPlural,
+        h: 'годину',
+        hh: relativeTimeWithPlural,
+        d: 'день',
+        dd: relativeTimeWithPlural,
+        M: 'місяць',
+        MM: relativeTimeWithPlural,
+        y: 'рік',
+        yy: relativeTimeWithPlural,
+    },
+    // M. E.: those two are virtually unused but a user might want to implement them for his/her website for some reason
+    meridiemParse: /ночі|ранку|дня|вечора/,
+    isPM: function (input) {
+        return /^(дня|вечора)$/.test(input);
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'ночі';
+        } else if (hour < 12) {
+            return 'ранку';
+        } else if (hour < 17) {
+            return 'дня';
+        } else {
+            return 'вечора';
+        }
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}-(й|го)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'M':
+            case 'd':
+            case 'DDD':
+            case 'w':
+            case 'W':
+                return number + '-й';
+            case 'D':
+                return number + '-го';
+            default:
+                return number;
+        }
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/ur.js b/backend/node_modules/moment/dist/locale/ur.js
new file mode 100644
index 0000000..ca5e252
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/ur.js
@@ -0,0 +1,82 @@
+//! moment.js locale configuration
+//! locale : Urdu [ur]
+//! author : Sawood Alam : https://github.com/ibnesayeed
+//! author : Zack : https://github.com/ZackVision
+
+import moment from '../moment';
+
+var months = [
+        'جنوری',
+        'فروری',
+        'مارچ',
+        'اپریل',
+        'مئی',
+        'جون',
+        'جولائی',
+        'اگست',
+        'ستمبر',
+        'اکتوبر',
+        'نومبر',
+        'دسمبر',
+    ],
+    days = ['اتوار', 'پیر', 'منگل', 'بدھ', 'جمعرات', 'جمعہ', 'ہفتہ'];
+
+export default moment.defineLocale('ur', {
+    months: months,
+    monthsShort: months,
+    weekdays: days,
+    weekdaysShort: days,
+    weekdaysMin: days,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd، D MMMM YYYY HH:mm',
+    },
+    meridiemParse: /صبح|شام/,
+    isPM: function (input) {
+        return 'شام' === input;
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'صبح';
+        }
+        return 'شام';
+    },
+    calendar: {
+        sameDay: '[آج بوقت] LT',
+        nextDay: '[کل بوقت] LT',
+        nextWeek: 'dddd [بوقت] LT',
+        lastDay: '[گذشتہ روز بوقت] LT',
+        lastWeek: '[گذشتہ] dddd [بوقت] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s بعد',
+        past: '%s قبل',
+        s: 'چند سیکنڈ',
+        ss: '%d سیکنڈ',
+        m: 'ایک منٹ',
+        mm: '%d منٹ',
+        h: 'ایک گھنٹہ',
+        hh: '%d گھنٹے',
+        d: 'ایک دن',
+        dd: '%d دن',
+        M: 'ایک ماہ',
+        MM: '%d ماہ',
+        y: 'ایک سال',
+        yy: '%d سال',
+    },
+    preparse: function (string) {
+        return string.replace(/،/g, ',');
+    },
+    postformat: function (string) {
+        return string.replace(/,/g, '،');
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/uz-latn.js b/backend/node_modules/moment/dist/locale/uz-latn.js
new file mode 100644
index 0000000..a2d577e
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/uz-latn.js
@@ -0,0 +1,54 @@
+//! moment.js locale configuration
+//! locale : Uzbek Latin [uz-latn]
+//! author : Rasulbek Mirzayev : github.com/Rasulbeeek
+
+import moment from '../moment';
+
+export default moment.defineLocale('uz-latn', {
+    months: 'Yanvar_Fevral_Mart_Aprel_May_Iyun_Iyul_Avgust_Sentabr_Oktabr_Noyabr_Dekabr'.split(
+        '_'
+    ),
+    monthsShort: 'Yan_Fev_Mar_Apr_May_Iyun_Iyul_Avg_Sen_Okt_Noy_Dek'.split('_'),
+    weekdays:
+        'Yakshanba_Dushanba_Seshanba_Chorshanba_Payshanba_Juma_Shanba'.split(
+            '_'
+        ),
+    weekdaysShort: 'Yak_Dush_Sesh_Chor_Pay_Jum_Shan'.split('_'),
+    weekdaysMin: 'Ya_Du_Se_Cho_Pa_Ju_Sha'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'D MMMM YYYY, dddd HH:mm',
+    },
+    calendar: {
+        sameDay: '[Bugun soat] LT [da]',
+        nextDay: '[Ertaga] LT [da]',
+        nextWeek: 'dddd [kuni soat] LT [da]',
+        lastDay: '[Kecha soat] LT [da]',
+        lastWeek: "[O'tgan] dddd [kuni soat] LT [da]",
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'Yaqin %s ichida',
+        past: 'Bir necha %s oldin',
+        s: 'soniya',
+        ss: '%d soniya',
+        m: 'bir daqiqa',
+        mm: '%d daqiqa',
+        h: 'bir soat',
+        hh: '%d soat',
+        d: 'bir kun',
+        dd: '%d kun',
+        M: 'bir oy',
+        MM: '%d oy',
+        y: 'bir yil',
+        yy: '%d yil',
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/uz.js b/backend/node_modules/moment/dist/locale/uz.js
new file mode 100644
index 0000000..03914dd
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/uz.js
@@ -0,0 +1,51 @@
+//! moment.js locale configuration
+//! locale : Uzbek [uz]
+//! author : Sardor Muminov : https://github.com/muminoff
+
+import moment from '../moment';
+
+export default moment.defineLocale('uz', {
+    months: 'январ_феврал_март_апрел_май_июн_июл_август_сентябр_октябр_ноябр_декабр'.split(
+        '_'
+    ),
+    monthsShort: 'янв_фев_мар_апр_май_июн_июл_авг_сен_окт_ноя_дек'.split('_'),
+    weekdays: 'Якшанба_Душанба_Сешанба_Чоршанба_Пайшанба_Жума_Шанба'.split('_'),
+    weekdaysShort: 'Якш_Душ_Сеш_Чор_Пай_Жум_Шан'.split('_'),
+    weekdaysMin: 'Як_Ду_Се_Чо_Па_Жу_Ша'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'D MMMM YYYY, dddd HH:mm',
+    },
+    calendar: {
+        sameDay: '[Бугун соат] LT [да]',
+        nextDay: '[Эртага] LT [да]',
+        nextWeek: 'dddd [куни соат] LT [да]',
+        lastDay: '[Кеча соат] LT [да]',
+        lastWeek: '[Утган] dddd [куни соат] LT [да]',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'Якин %s ичида',
+        past: 'Бир неча %s олдин',
+        s: 'фурсат',
+        ss: '%d фурсат',
+        m: 'бир дакика',
+        mm: '%d дакика',
+        h: 'бир соат',
+        hh: '%d соат',
+        d: 'бир кун',
+        dd: '%d кун',
+        M: 'бир ой',
+        MM: '%d ой',
+        y: 'бир йил',
+        yy: '%d йил',
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/vi.js b/backend/node_modules/moment/dist/locale/vi.js
new file mode 100644
index 0000000..2b11cf6
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/vi.js
@@ -0,0 +1,80 @@
+//! moment.js locale configuration
+//! locale : Vietnamese [vi]
+//! author : Bang Nguyen : https://github.com/bangnk
+//! author : Chien Kira : https://github.com/chienkira
+
+import moment from '../moment';
+
+export default moment.defineLocale('vi', {
+    months: 'tháng 1_tháng 2_tháng 3_tháng 4_tháng 5_tháng 6_tháng 7_tháng 8_tháng 9_tháng 10_tháng 11_tháng 12'.split(
+        '_'
+    ),
+    monthsShort:
+        'Thg 01_Thg 02_Thg 03_Thg 04_Thg 05_Thg 06_Thg 07_Thg 08_Thg 09_Thg 10_Thg 11_Thg 12'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'chủ nhật_thứ hai_thứ ba_thứ tư_thứ năm_thứ sáu_thứ bảy'.split(
+        '_'
+    ),
+    weekdaysShort: 'CN_T2_T3_T4_T5_T6_T7'.split('_'),
+    weekdaysMin: 'CN_T2_T3_T4_T5_T6_T7'.split('_'),
+    weekdaysParseExact: true,
+    meridiemParse: /sa|ch/i,
+    isPM: function (input) {
+        return /^ch$/i.test(input);
+    },
+    meridiem: function (hours, minutes, isLower) {
+        if (hours < 12) {
+            return isLower ? 'sa' : 'SA';
+        } else {
+            return isLower ? 'ch' : 'CH';
+        }
+    },
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM [năm] YYYY',
+        LLL: 'D MMMM [năm] YYYY HH:mm',
+        LLLL: 'dddd, D MMMM [năm] YYYY HH:mm',
+        l: 'DD/M/YYYY',
+        ll: 'D MMM YYYY',
+        lll: 'D MMM YYYY HH:mm',
+        llll: 'ddd, D MMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Hôm nay lúc] LT',
+        nextDay: '[Ngày mai lúc] LT',
+        nextWeek: 'dddd [tuần tới lúc] LT',
+        lastDay: '[Hôm qua lúc] LT',
+        lastWeek: 'dddd [tuần trước lúc] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s tới',
+        past: '%s trước',
+        s: 'vài giây',
+        ss: '%d giây',
+        m: 'một phút',
+        mm: '%d phút',
+        h: 'một giờ',
+        hh: '%d giờ',
+        d: 'một ngày',
+        dd: '%d ngày',
+        w: 'một tuần',
+        ww: '%d tuần',
+        M: 'một tháng',
+        MM: '%d tháng',
+        y: 'một năm',
+        yy: '%d năm',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}/,
+    ordinal: function (number) {
+        return number;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/x-pseudo.js b/backend/node_modules/moment/dist/locale/x-pseudo.js
new file mode 100644
index 0000000..90df555
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/x-pseudo.js
@@ -0,0 +1,73 @@
+//! moment.js locale configuration
+//! locale : Pseudo [x-pseudo]
+//! author : Andrew Hood : https://github.com/andrewhood125
+
+import moment from '../moment';
+
+export default moment.defineLocale('x-pseudo', {
+    months: 'J~áñúá~rý_F~ébrú~árý_~Márc~h_Áp~ríl_~Máý_~Júñé~_Júl~ý_Áú~gúst~_Sép~témb~ér_Ó~ctób~ér_Ñ~óvém~bér_~Décé~mbér'.split(
+        '_'
+    ),
+    monthsShort:
+        'J~áñ_~Féb_~Már_~Ápr_~Máý_~Júñ_~Júl_~Áúg_~Sép_~Óct_~Ñóv_~Déc'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays:
+        'S~úñdá~ý_Mó~ñdáý~_Túé~sdáý~_Wéd~ñésd~áý_T~húrs~dáý_~Fríd~áý_S~átúr~dáý'.split(
+            '_'
+        ),
+    weekdaysShort: 'S~úñ_~Móñ_~Túé_~Wéd_~Thú_~Frí_~Sát'.split('_'),
+    weekdaysMin: 'S~ú_Mó~_Tú_~Wé_T~h_Fr~_Sá'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[T~ódá~ý át] LT',
+        nextDay: '[T~ómó~rró~w át] LT',
+        nextWeek: 'dddd [át] LT',
+        lastDay: '[Ý~ést~érdá~ý át] LT',
+        lastWeek: '[L~ást] dddd [át] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'í~ñ %s',
+        past: '%s á~gó',
+        s: 'á ~féw ~sécó~ñds',
+        ss: '%d s~écóñ~ds',
+        m: 'á ~míñ~úté',
+        mm: '%d m~íñú~tés',
+        h: 'á~ñ hó~úr',
+        hh: '%d h~óúrs',
+        d: 'á ~dáý',
+        dd: '%d d~áýs',
+        M: 'á ~móñ~th',
+        MM: '%d m~óñt~hs',
+        y: 'á ~ýéár',
+        yy: '%d ý~éárs',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
+    ordinal: function (number) {
+        var b = number % 10,
+            output =
+                ~~((number % 100) / 10) === 1
+                    ? 'th'
+                    : b === 1
+                      ? 'st'
+                      : b === 2
+                        ? 'nd'
+                        : b === 3
+                          ? 'rd'
+                          : 'th';
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/yo.js b/backend/node_modules/moment/dist/locale/yo.js
new file mode 100644
index 0000000..2fcb6e4
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/yo.js
@@ -0,0 +1,53 @@
+//! moment.js locale configuration
+//! locale : Yoruba Nigeria [yo]
+//! author : Atolagbe Abisoye : https://github.com/andela-batolagbe
+
+import moment from '../moment';
+
+export default moment.defineLocale('yo', {
+    months: 'Sẹ́rẹ́_Èrèlè_Ẹrẹ̀nà_Ìgbé_Èbibi_Òkùdu_Agẹmo_Ògún_Owewe_Ọ̀wàrà_Bélú_Ọ̀pẹ̀̀'.split(
+        '_'
+    ),
+    monthsShort: 'Sẹ́r_Èrl_Ẹrn_Ìgb_Èbi_Òkù_Agẹ_Ògú_Owe_Ọ̀wà_Bél_Ọ̀pẹ̀̀'.split('_'),
+    weekdays: 'Àìkú_Ajé_Ìsẹ́gun_Ọjọ́rú_Ọjọ́bọ_Ẹtì_Àbámẹ́ta'.split('_'),
+    weekdaysShort: 'Àìk_Ajé_Ìsẹ́_Ọjr_Ọjb_Ẹtì_Àbá'.split('_'),
+    weekdaysMin: 'Àì_Aj_Ìs_Ọr_Ọb_Ẹt_Àb'.split('_'),
+    longDateFormat: {
+        LT: 'h:mm A',
+        LTS: 'h:mm:ss A',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY h:mm A',
+        LLLL: 'dddd, D MMMM YYYY h:mm A',
+    },
+    calendar: {
+        sameDay: '[Ònì ni] LT',
+        nextDay: '[Ọ̀la ni] LT',
+        nextWeek: "dddd [Ọsẹ̀ tón'bọ] [ni] LT",
+        lastDay: '[Àna ni] LT',
+        lastWeek: 'dddd [Ọsẹ̀ tólọ́] [ni] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'ní %s',
+        past: '%s kọjá',
+        s: 'ìsẹjú aayá die',
+        ss: 'aayá %d',
+        m: 'ìsẹjú kan',
+        mm: 'ìsẹjú %d',
+        h: 'wákati kan',
+        hh: 'wákati %d',
+        d: 'ọjọ́ kan',
+        dd: 'ọjọ́ %d',
+        M: 'osù kan',
+        MM: 'osù %d',
+        y: 'ọdún kan',
+        yy: 'ọdún %d',
+    },
+    dayOfMonthOrdinalParse: /ọjọ́\s\d{1,2}/,
+    ordinal: 'ọjọ́ %d',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/zh-cn.js b/backend/node_modules/moment/dist/locale/zh-cn.js
new file mode 100644
index 0000000..2345ee6
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/zh-cn.js
@@ -0,0 +1,120 @@
+//! moment.js locale configuration
+//! locale : Chinese (China) [zh-cn]
+//! author : suupic : https://github.com/suupic
+//! author : Zeno Zeng : https://github.com/zenozeng
+//! author : uu109 : https://github.com/uu109
+
+import moment from '../moment';
+
+export default moment.defineLocale('zh-cn', {
+    months: '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.split(
+        '_'
+    ),
+    monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+        '_'
+    ),
+    weekdays: '星期日_星期一_星期二_星期三_星期四_星期五_星期六'.split('_'),
+    weekdaysShort: '周日_周一_周二_周三_周四_周五_周六'.split('_'),
+    weekdaysMin: '日_一_二_三_四_五_六'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'YYYY/MM/DD',
+        LL: 'YYYY年M月D日',
+        LLL: 'YYYY年M月D日Ah点mm分',
+        LLLL: 'YYYY年M月D日ddddAh点mm分',
+        l: 'YYYY/M/D',
+        ll: 'YYYY年M月D日',
+        lll: 'YYYY年M月D日 HH:mm',
+        llll: 'YYYY年M月D日dddd HH:mm',
+    },
+    meridiemParse: /凌晨|早上|上午|中午|下午|晚上/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === '凌晨' || meridiem === '早上' || meridiem === '上午') {
+            return hour;
+        } else if (meridiem === '下午' || meridiem === '晚上') {
+            return hour + 12;
+        } else {
+            // '中午'
+            return hour >= 11 ? hour : hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        var hm = hour * 100 + minute;
+        if (hm < 600) {
+            return '凌晨';
+        } else if (hm < 900) {
+            return '早上';
+        } else if (hm < 1130) {
+            return '上午';
+        } else if (hm < 1230) {
+            return '中午';
+        } else if (hm < 1800) {
+            return '下午';
+        } else {
+            return '晚上';
+        }
+    },
+    calendar: {
+        sameDay: '[今天]LT',
+        nextDay: '[明天]LT',
+        nextWeek: function (now) {
+            if (now.week() !== this.week()) {
+                return '[下]dddLT';
+            } else {
+                return '[本]dddLT';
+            }
+        },
+        lastDay: '[昨天]LT',
+        lastWeek: function (now) {
+            if (this.week() !== now.week()) {
+                return '[上]dddLT';
+            } else {
+                return '[本]dddLT';
+            }
+        },
+        sameElse: 'L',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(日|月|周)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'd':
+            case 'D':
+            case 'DDD':
+                return number + '日';
+            case 'M':
+                return number + '月';
+            case 'w':
+            case 'W':
+                return number + '周';
+            default:
+                return number;
+        }
+    },
+    relativeTime: {
+        future: '%s后',
+        past: '%s前',
+        s: '几秒',
+        ss: '%d 秒',
+        m: '1 分钟',
+        mm: '%d 分钟',
+        h: '1 小时',
+        hh: '%d 小时',
+        d: '1 天',
+        dd: '%d 天',
+        w: '1 周',
+        ww: '%d 周',
+        M: '1 个月',
+        MM: '%d 个月',
+        y: '1 年',
+        yy: '%d 年',
+    },
+    week: {
+        // GB/T 7408-1994《数据元和交换格式·信息交换·日期和时间表示法》与ISO 8601:1988等效
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/zh-hk.js b/backend/node_modules/moment/dist/locale/zh-hk.js
new file mode 100644
index 0000000..78a1019
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/zh-hk.js
@@ -0,0 +1,101 @@
+//! moment.js locale configuration
+//! locale : Chinese (Hong Kong) [zh-hk]
+//! author : Ben : https://github.com/ben-lin
+//! author : Chris Lam : https://github.com/hehachris
+//! author : Konstantin : https://github.com/skfd
+//! author : Anthony : https://github.com/anthonylau
+
+import moment from '../moment';
+
+export default moment.defineLocale('zh-hk', {
+    months: '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.split(
+        '_'
+    ),
+    monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+        '_'
+    ),
+    weekdays: '星期日_星期一_星期二_星期三_星期四_星期五_星期六'.split('_'),
+    weekdaysShort: '週日_週一_週二_週三_週四_週五_週六'.split('_'),
+    weekdaysMin: '日_一_二_三_四_五_六'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'YYYY/MM/DD',
+        LL: 'YYYY年M月D日',
+        LLL: 'YYYY年M月D日 HH:mm',
+        LLLL: 'YYYY年M月D日dddd HH:mm',
+        l: 'YYYY/M/D',
+        ll: 'YYYY年M月D日',
+        lll: 'YYYY年M月D日 HH:mm',
+        llll: 'YYYY年M月D日dddd HH:mm',
+    },
+    meridiemParse: /凌晨|早上|上午|中午|下午|晚上/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === '凌晨' || meridiem === '早上' || meridiem === '上午') {
+            return hour;
+        } else if (meridiem === '中午') {
+            return hour >= 11 ? hour : hour + 12;
+        } else if (meridiem === '下午' || meridiem === '晚上') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        var hm = hour * 100 + minute;
+        if (hm < 600) {
+            return '凌晨';
+        } else if (hm < 900) {
+            return '早上';
+        } else if (hm < 1200) {
+            return '上午';
+        } else if (hm === 1200) {
+            return '中午';
+        } else if (hm < 1800) {
+            return '下午';
+        } else {
+            return '晚上';
+        }
+    },
+    calendar: {
+        sameDay: '[今天]LT',
+        nextDay: '[明天]LT',
+        nextWeek: '[下]ddddLT',
+        lastDay: '[昨天]LT',
+        lastWeek: '[上]ddddLT',
+        sameElse: 'L',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(日|月|週)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'd':
+            case 'D':
+            case 'DDD':
+                return number + '日';
+            case 'M':
+                return number + '月';
+            case 'w':
+            case 'W':
+                return number + '週';
+            default:
+                return number;
+        }
+    },
+    relativeTime: {
+        future: '%s後',
+        past: '%s前',
+        s: '幾秒',
+        ss: '%d 秒',
+        m: '1 分鐘',
+        mm: '%d 分鐘',
+        h: '1 小時',
+        hh: '%d 小時',
+        d: '1 天',
+        dd: '%d 天',
+        M: '1 個月',
+        MM: '%d 個月',
+        y: '1 年',
+        yy: '%d 年',
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/zh-mo.js b/backend/node_modules/moment/dist/locale/zh-mo.js
new file mode 100644
index 0000000..9ed795d
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/zh-mo.js
@@ -0,0 +1,100 @@
+//! moment.js locale configuration
+//! locale : Chinese (Macau) [zh-mo]
+//! author : Ben : https://github.com/ben-lin
+//! author : Chris Lam : https://github.com/hehachris
+//! author : Tan Yuanhong : https://github.com/le0tan
+
+import moment from '../moment';
+
+export default moment.defineLocale('zh-mo', {
+    months: '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.split(
+        '_'
+    ),
+    monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+        '_'
+    ),
+    weekdays: '星期日_星期一_星期二_星期三_星期四_星期五_星期六'.split('_'),
+    weekdaysShort: '週日_週一_週二_週三_週四_週五_週六'.split('_'),
+    weekdaysMin: '日_一_二_三_四_五_六'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'YYYY年M月D日',
+        LLL: 'YYYY年M月D日 HH:mm',
+        LLLL: 'YYYY年M月D日dddd HH:mm',
+        l: 'D/M/YYYY',
+        ll: 'YYYY年M月D日',
+        lll: 'YYYY年M月D日 HH:mm',
+        llll: 'YYYY年M月D日dddd HH:mm',
+    },
+    meridiemParse: /凌晨|早上|上午|中午|下午|晚上/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === '凌晨' || meridiem === '早上' || meridiem === '上午') {
+            return hour;
+        } else if (meridiem === '中午') {
+            return hour >= 11 ? hour : hour + 12;
+        } else if (meridiem === '下午' || meridiem === '晚上') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        var hm = hour * 100 + minute;
+        if (hm < 600) {
+            return '凌晨';
+        } else if (hm < 900) {
+            return '早上';
+        } else if (hm < 1130) {
+            return '上午';
+        } else if (hm < 1230) {
+            return '中午';
+        } else if (hm < 1800) {
+            return '下午';
+        } else {
+            return '晚上';
+        }
+    },
+    calendar: {
+        sameDay: '[今天] LT',
+        nextDay: '[明天] LT',
+        nextWeek: '[下]dddd LT',
+        lastDay: '[昨天] LT',
+        lastWeek: '[上]dddd LT',
+        sameElse: 'L',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(日|月|週)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'd':
+            case 'D':
+            case 'DDD':
+                return number + '日';
+            case 'M':
+                return number + '月';
+            case 'w':
+            case 'W':
+                return number + '週';
+            default:
+                return number;
+        }
+    },
+    relativeTime: {
+        future: '%s內',
+        past: '%s前',
+        s: '幾秒',
+        ss: '%d 秒',
+        m: '1 分鐘',
+        mm: '%d 分鐘',
+        h: '1 小時',
+        hh: '%d 小時',
+        d: '1 天',
+        dd: '%d 天',
+        M: '1 個月',
+        MM: '%d 個月',
+        y: '1 年',
+        yy: '%d 年',
+    },
+});
diff --git a/backend/node_modules/moment/dist/locale/zh-tw.js b/backend/node_modules/moment/dist/locale/zh-tw.js
new file mode 100644
index 0000000..aa98ab1
--- /dev/null
+++ b/backend/node_modules/moment/dist/locale/zh-tw.js
@@ -0,0 +1,99 @@
+//! moment.js locale configuration
+//! locale : Chinese (Taiwan) [zh-tw]
+//! author : Ben : https://github.com/ben-lin
+//! author : Chris Lam : https://github.com/hehachris
+
+import moment from '../moment';
+
+export default moment.defineLocale('zh-tw', {
+    months: '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.split(
+        '_'
+    ),
+    monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+        '_'
+    ),
+    weekdays: '星期日_星期一_星期二_星期三_星期四_星期五_星期六'.split('_'),
+    weekdaysShort: '週日_週一_週二_週三_週四_週五_週六'.split('_'),
+    weekdaysMin: '日_一_二_三_四_五_六'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'YYYY/MM/DD',
+        LL: 'YYYY年M月D日',
+        LLL: 'YYYY年M月D日 HH:mm',
+        LLLL: 'YYYY年M月D日dddd HH:mm',
+        l: 'YYYY/M/D',
+        ll: 'YYYY年M月D日',
+        lll: 'YYYY年M月D日 HH:mm',
+        llll: 'YYYY年M月D日dddd HH:mm',
+    },
+    meridiemParse: /凌晨|早上|上午|中午|下午|晚上/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === '凌晨' || meridiem === '早上' || meridiem === '上午') {
+            return hour;
+        } else if (meridiem === '中午') {
+            return hour >= 11 ? hour : hour + 12;
+        } else if (meridiem === '下午' || meridiem === '晚上') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        var hm = hour * 100 + minute;
+        if (hm < 600) {
+            return '凌晨';
+        } else if (hm < 900) {
+            return '早上';
+        } else if (hm < 1130) {
+            return '上午';
+        } else if (hm < 1230) {
+            return '中午';
+        } else if (hm < 1800) {
+            return '下午';
+        } else {
+            return '晚上';
+        }
+    },
+    calendar: {
+        sameDay: '[今天] LT',
+        nextDay: '[明天] LT',
+        nextWeek: '[下]dddd LT',
+        lastDay: '[昨天] LT',
+        lastWeek: '[上]dddd LT',
+        sameElse: 'L',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(日|月|週)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'd':
+            case 'D':
+            case 'DDD':
+                return number + '日';
+            case 'M':
+                return number + '月';
+            case 'w':
+            case 'W':
+                return number + '週';
+            default:
+                return number;
+        }
+    },
+    relativeTime: {
+        future: '%s後',
+        past: '%s前',
+        s: '幾秒',
+        ss: '%d 秒',
+        m: '1 分鐘',
+        mm: '%d 分鐘',
+        h: '1 小時',
+        hh: '%d 小時',
+        d: '1 天',
+        dd: '%d 天',
+        M: '1 個月',
+        MM: '%d 個月',
+        y: '1 年',
+        yy: '%d 年',
+    },
+});
diff --git a/backend/node_modules/moment/dist/moment.js b/backend/node_modules/moment/dist/moment.js
new file mode 100644
index 0000000..956eeb3
--- /dev/null
+++ b/backend/node_modules/moment/dist/moment.js
@@ -0,0 +1,5680 @@
+//! moment.js
+//! version : 2.30.1
+//! authors : Tim Wood, Iskren Chernev, Moment.js contributors
+//! license : MIT
+//! momentjs.com
+
+var hookCallback;
+
+function hooks() {
+    return hookCallback.apply(null, arguments);
+}
+
+// This is done to register the method called with moment()
+// without creating circular dependencies.
+function setHookCallback(callback) {
+    hookCallback = callback;
+}
+
+function isArray(input) {
+    return (
+        input instanceof Array ||
+        Object.prototype.toString.call(input) === '[object Array]'
+    );
+}
+
+function isObject(input) {
+    // IE8 will treat undefined and null as object if it wasn't for
+    // input != null
+    return (
+        input != null &&
+        Object.prototype.toString.call(input) === '[object Object]'
+    );
+}
+
+function hasOwnProp(a, b) {
+    return Object.prototype.hasOwnProperty.call(a, b);
+}
+
+function isObjectEmpty(obj) {
+    if (Object.getOwnPropertyNames) {
+        return Object.getOwnPropertyNames(obj).length === 0;
+    } else {
+        var k;
+        for (k in obj) {
+            if (hasOwnProp(obj, k)) {
+                return false;
+            }
+        }
+        return true;
+    }
+}
+
+function isUndefined(input) {
+    return input === void 0;
+}
+
+function isNumber(input) {
+    return (
+        typeof input === 'number' ||
+        Object.prototype.toString.call(input) === '[object Number]'
+    );
+}
+
+function isDate(input) {
+    return (
+        input instanceof Date ||
+        Object.prototype.toString.call(input) === '[object Date]'
+    );
+}
+
+function map(arr, fn) {
+    var res = [],
+        i,
+        arrLen = arr.length;
+    for (i = 0; i < arrLen; ++i) {
+        res.push(fn(arr[i], i));
+    }
+    return res;
+}
+
+function extend(a, b) {
+    for (var i in b) {
+        if (hasOwnProp(b, i)) {
+            a[i] = b[i];
+        }
+    }
+
+    if (hasOwnProp(b, 'toString')) {
+        a.toString = b.toString;
+    }
+
+    if (hasOwnProp(b, 'valueOf')) {
+        a.valueOf = b.valueOf;
+    }
+
+    return a;
+}
+
+function createUTC(input, format, locale, strict) {
+    return createLocalOrUTC(input, format, locale, strict, true).utc();
+}
+
+function defaultParsingFlags() {
+    // We need to deep clone this object.
+    return {
+        empty: false,
+        unusedTokens: [],
+        unusedInput: [],
+        overflow: -2,
+        charsLeftOver: 0,
+        nullInput: false,
+        invalidEra: null,
+        invalidMonth: null,
+        invalidFormat: false,
+        userInvalidated: false,
+        iso: false,
+        parsedDateParts: [],
+        era: null,
+        meridiem: null,
+        rfc2822: false,
+        weekdayMismatch: false,
+    };
+}
+
+function getParsingFlags(m) {
+    if (m._pf == null) {
+        m._pf = defaultParsingFlags();
+    }
+    return m._pf;
+}
+
+var some;
+if (Array.prototype.some) {
+    some = Array.prototype.some;
+} else {
+    some = function (fun) {
+        var t = Object(this),
+            len = t.length >>> 0,
+            i;
+
+        for (i = 0; i < len; i++) {
+            if (i in t && fun.call(this, t[i], i, t)) {
+                return true;
+            }
+        }
+
+        return false;
+    };
+}
+
+function isValid(m) {
+    var flags = null,
+        parsedParts = false,
+        isNowValid = m._d && !isNaN(m._d.getTime());
+    if (isNowValid) {
+        flags = getParsingFlags(m);
+        parsedParts = some.call(flags.parsedDateParts, function (i) {
+            return i != null;
+        });
+        isNowValid =
+            flags.overflow < 0 &&
+            !flags.empty &&
+            !flags.invalidEra &&
+            !flags.invalidMonth &&
+            !flags.invalidWeekday &&
+            !flags.weekdayMismatch &&
+            !flags.nullInput &&
+            !flags.invalidFormat &&
+            !flags.userInvalidated &&
+            (!flags.meridiem || (flags.meridiem && parsedParts));
+        if (m._strict) {
+            isNowValid =
+                isNowValid &&
+                flags.charsLeftOver === 0 &&
+                flags.unusedTokens.length === 0 &&
+                flags.bigHour === undefined;
+        }
+    }
+    if (Object.isFrozen == null || !Object.isFrozen(m)) {
+        m._isValid = isNowValid;
+    } else {
+        return isNowValid;
+    }
+    return m._isValid;
+}
+
+function createInvalid(flags) {
+    var m = createUTC(NaN);
+    if (flags != null) {
+        extend(getParsingFlags(m), flags);
+    } else {
+        getParsingFlags(m).userInvalidated = true;
+    }
+
+    return m;
+}
+
+// Plugins that add properties should also add the key here (null value),
+// so we can properly clone ourselves.
+var momentProperties = (hooks.momentProperties = []),
+    updateInProgress = false;
+
+function copyConfig(to, from) {
+    var i,
+        prop,
+        val,
+        momentPropertiesLen = momentProperties.length;
+
+    if (!isUndefined(from._isAMomentObject)) {
+        to._isAMomentObject = from._isAMomentObject;
+    }
+    if (!isUndefined(from._i)) {
+        to._i = from._i;
+    }
+    if (!isUndefined(from._f)) {
+        to._f = from._f;
+    }
+    if (!isUndefined(from._l)) {
+        to._l = from._l;
+    }
+    if (!isUndefined(from._strict)) {
+        to._strict = from._strict;
+    }
+    if (!isUndefined(from._tzm)) {
+        to._tzm = from._tzm;
+    }
+    if (!isUndefined(from._isUTC)) {
+        to._isUTC = from._isUTC;
+    }
+    if (!isUndefined(from._offset)) {
+        to._offset = from._offset;
+    }
+    if (!isUndefined(from._pf)) {
+        to._pf = getParsingFlags(from);
+    }
+    if (!isUndefined(from._locale)) {
+        to._locale = from._locale;
+    }
+
+    if (momentPropertiesLen > 0) {
+        for (i = 0; i < momentPropertiesLen; i++) {
+            prop = momentProperties[i];
+            val = from[prop];
+            if (!isUndefined(val)) {
+                to[prop] = val;
+            }
+        }
+    }
+
+    return to;
+}
+
+// Moment prototype object
+function Moment(config) {
+    copyConfig(this, config);
+    this._d = new Date(config._d != null ? config._d.getTime() : NaN);
+    if (!this.isValid()) {
+        this._d = new Date(NaN);
+    }
+    // Prevent infinite loop in case updateOffset creates new moment
+    // objects.
+    if (updateInProgress === false) {
+        updateInProgress = true;
+        hooks.updateOffset(this);
+        updateInProgress = false;
+    }
+}
+
+function isMoment(obj) {
+    return (
+        obj instanceof Moment || (obj != null && obj._isAMomentObject != null)
+    );
+}
+
+function warn(msg) {
+    if (
+        hooks.suppressDeprecationWarnings === false &&
+        typeof console !== 'undefined' &&
+        console.warn
+    ) {
+        console.warn('Deprecation warning: ' + msg);
+    }
+}
+
+function deprecate(msg, fn) {
+    var firstTime = true;
+
+    return extend(function () {
+        if (hooks.deprecationHandler != null) {
+            hooks.deprecationHandler(null, msg);
+        }
+        if (firstTime) {
+            var args = [],
+                arg,
+                i,
+                key,
+                argLen = arguments.length;
+            for (i = 0; i < argLen; i++) {
+                arg = '';
+                if (typeof arguments[i] === 'object') {
+                    arg += '\n[' + i + '] ';
+                    for (key in arguments[0]) {
+                        if (hasOwnProp(arguments[0], key)) {
+                            arg += key + ': ' + arguments[0][key] + ', ';
+                        }
+                    }
+                    arg = arg.slice(0, -2); // Remove trailing comma and space
+                } else {
+                    arg = arguments[i];
+                }
+                args.push(arg);
+            }
+            warn(
+                msg +
+                    '\nArguments: ' +
+                    Array.prototype.slice.call(args).join('') +
+                    '\n' +
+                    new Error().stack
+            );
+            firstTime = false;
+        }
+        return fn.apply(this, arguments);
+    }, fn);
+}
+
+var deprecations = {};
+
+function deprecateSimple(name, msg) {
+    if (hooks.deprecationHandler != null) {
+        hooks.deprecationHandler(name, msg);
+    }
+    if (!deprecations[name]) {
+        warn(msg);
+        deprecations[name] = true;
+    }
+}
+
+hooks.suppressDeprecationWarnings = false;
+hooks.deprecationHandler = null;
+
+function isFunction(input) {
+    return (
+        (typeof Function !== 'undefined' && input instanceof Function) ||
+        Object.prototype.toString.call(input) === '[object Function]'
+    );
+}
+
+function set(config) {
+    var prop, i;
+    for (i in config) {
+        if (hasOwnProp(config, i)) {
+            prop = config[i];
+            if (isFunction(prop)) {
+                this[i] = prop;
+            } else {
+                this['_' + i] = prop;
+            }
+        }
+    }
+    this._config = config;
+    // Lenient ordinal parsing accepts just a number in addition to
+    // number + (possibly) stuff coming from _dayOfMonthOrdinalParse.
+    // TODO: Remove "ordinalParse" fallback in next major release.
+    this._dayOfMonthOrdinalParseLenient = new RegExp(
+        (this._dayOfMonthOrdinalParse.source || this._ordinalParse.source) +
+            '|' +
+            /\d{1,2}/.source
+    );
+}
+
+function mergeConfigs(parentConfig, childConfig) {
+    var res = extend({}, parentConfig),
+        prop;
+    for (prop in childConfig) {
+        if (hasOwnProp(childConfig, prop)) {
+            if (isObject(parentConfig[prop]) && isObject(childConfig[prop])) {
+                res[prop] = {};
+                extend(res[prop], parentConfig[prop]);
+                extend(res[prop], childConfig[prop]);
+            } else if (childConfig[prop] != null) {
+                res[prop] = childConfig[prop];
+            } else {
+                delete res[prop];
+            }
+        }
+    }
+    for (prop in parentConfig) {
+        if (
+            hasOwnProp(parentConfig, prop) &&
+            !hasOwnProp(childConfig, prop) &&
+            isObject(parentConfig[prop])
+        ) {
+            // make sure changes to properties don't modify parent config
+            res[prop] = extend({}, res[prop]);
+        }
+    }
+    return res;
+}
+
+function Locale(config) {
+    if (config != null) {
+        this.set(config);
+    }
+}
+
+var keys;
+
+if (Object.keys) {
+    keys = Object.keys;
+} else {
+    keys = function (obj) {
+        var i,
+            res = [];
+        for (i in obj) {
+            if (hasOwnProp(obj, i)) {
+                res.push(i);
+            }
+        }
+        return res;
+    };
+}
+
+var defaultCalendar = {
+    sameDay: '[Today at] LT',
+    nextDay: '[Tomorrow at] LT',
+    nextWeek: 'dddd [at] LT',
+    lastDay: '[Yesterday at] LT',
+    lastWeek: '[Last] dddd [at] LT',
+    sameElse: 'L',
+};
+
+function calendar(key, mom, now) {
+    var output = this._calendar[key] || this._calendar['sameElse'];
+    return isFunction(output) ? output.call(mom, now) : output;
+}
+
+function zeroFill(number, targetLength, forceSign) {
+    var absNumber = '' + Math.abs(number),
+        zerosToFill = targetLength - absNumber.length,
+        sign = number >= 0;
+    return (
+        (sign ? (forceSign ? '+' : '') : '-') +
+        Math.pow(10, Math.max(0, zerosToFill)).toString().substr(1) +
+        absNumber
+    );
+}
+
+var formattingTokens =
+        /(\[[^\[]*\])|(\\)?([Hh]mm(ss)?|Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Qo?|N{1,5}|YYYYYY|YYYYY|YYYY|YY|y{2,4}|yo?|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|kk?|mm?|ss?|S{1,9}|x|X|zz?|ZZ?|.)/g,
+    localFormattingTokens = /(\[[^\[]*\])|(\\)?(LTS|LT|LL?L?L?|l{1,4})/g,
+    formatFunctions = {},
+    formatTokenFunctions = {};
+
+// token:    'M'
+// padded:   ['MM', 2]
+// ordinal:  'Mo'
+// callback: function () { this.month() + 1 }
+function addFormatToken(token, padded, ordinal, callback) {
+    var func = callback;
+    if (typeof callback === 'string') {
+        func = function () {
+            return this[callback]();
+        };
+    }
+    if (token) {
+        formatTokenFunctions[token] = func;
+    }
+    if (padded) {
+        formatTokenFunctions[padded[0]] = function () {
+            return zeroFill(func.apply(this, arguments), padded[1], padded[2]);
+        };
+    }
+    if (ordinal) {
+        formatTokenFunctions[ordinal] = function () {
+            return this.localeData().ordinal(
+                func.apply(this, arguments),
+                token
+            );
+        };
+    }
+}
+
+function removeFormattingTokens(input) {
+    if (input.match(/\[[\s\S]/)) {
+        return input.replace(/^\[|\]$/g, '');
+    }
+    return input.replace(/\\/g, '');
+}
+
+function makeFormatFunction(format) {
+    var array = format.match(formattingTokens),
+        i,
+        length;
+
+    for (i = 0, length = array.length; i < length; i++) {
+        if (formatTokenFunctions[array[i]]) {
+            array[i] = formatTokenFunctions[array[i]];
+        } else {
+            array[i] = removeFormattingTokens(array[i]);
+        }
+    }
+
+    return function (mom) {
+        var output = '',
+            i;
+        for (i = 0; i < length; i++) {
+            output += isFunction(array[i])
+                ? array[i].call(mom, format)
+                : array[i];
+        }
+        return output;
+    };
+}
+
+// format date using native date object
+function formatMoment(m, format) {
+    if (!m.isValid()) {
+        return m.localeData().invalidDate();
+    }
+
+    format = expandFormat(format, m.localeData());
+    formatFunctions[format] =
+        formatFunctions[format] || makeFormatFunction(format);
+
+    return formatFunctions[format](m);
+}
+
+function expandFormat(format, locale) {
+    var i = 5;
+
+    function replaceLongDateFormatTokens(input) {
+        return locale.longDateFormat(input) || input;
+    }
+
+    localFormattingTokens.lastIndex = 0;
+    while (i >= 0 && localFormattingTokens.test(format)) {
+        format = format.replace(
+            localFormattingTokens,
+            replaceLongDateFormatTokens
+        );
+        localFormattingTokens.lastIndex = 0;
+        i -= 1;
+    }
+
+    return format;
+}
+
+var defaultLongDateFormat = {
+    LTS: 'h:mm:ss A',
+    LT: 'h:mm A',
+    L: 'MM/DD/YYYY',
+    LL: 'MMMM D, YYYY',
+    LLL: 'MMMM D, YYYY h:mm A',
+    LLLL: 'dddd, MMMM D, YYYY h:mm A',
+};
+
+function longDateFormat(key) {
+    var format = this._longDateFormat[key],
+        formatUpper = this._longDateFormat[key.toUpperCase()];
+
+    if (format || !formatUpper) {
+        return format;
+    }
+
+    this._longDateFormat[key] = formatUpper
+        .match(formattingTokens)
+        .map(function (tok) {
+            if (
+                tok === 'MMMM' ||
+                tok === 'MM' ||
+                tok === 'DD' ||
+                tok === 'dddd'
+            ) {
+                return tok.slice(1);
+            }
+            return tok;
+        })
+        .join('');
+
+    return this._longDateFormat[key];
+}
+
+var defaultInvalidDate = 'Invalid date';
+
+function invalidDate() {
+    return this._invalidDate;
+}
+
+var defaultOrdinal = '%d',
+    defaultDayOfMonthOrdinalParse = /\d{1,2}/;
+
+function ordinal(number) {
+    return this._ordinal.replace('%d', number);
+}
+
+var defaultRelativeTime = {
+    future: 'in %s',
+    past: '%s ago',
+    s: 'a few seconds',
+    ss: '%d seconds',
+    m: 'a minute',
+    mm: '%d minutes',
+    h: 'an hour',
+    hh: '%d hours',
+    d: 'a day',
+    dd: '%d days',
+    w: 'a week',
+    ww: '%d weeks',
+    M: 'a month',
+    MM: '%d months',
+    y: 'a year',
+    yy: '%d years',
+};
+
+function relativeTime(number, withoutSuffix, string, isFuture) {
+    var output = this._relativeTime[string];
+    return isFunction(output)
+        ? output(number, withoutSuffix, string, isFuture)
+        : output.replace(/%d/i, number);
+}
+
+function pastFuture(diff, output) {
+    var format = this._relativeTime[diff > 0 ? 'future' : 'past'];
+    return isFunction(format) ? format(output) : format.replace(/%s/i, output);
+}
+
+var aliases = {
+    D: 'date',
+    dates: 'date',
+    date: 'date',
+    d: 'day',
+    days: 'day',
+    day: 'day',
+    e: 'weekday',
+    weekdays: 'weekday',
+    weekday: 'weekday',
+    E: 'isoWeekday',
+    isoweekdays: 'isoWeekday',
+    isoweekday: 'isoWeekday',
+    DDD: 'dayOfYear',
+    dayofyears: 'dayOfYear',
+    dayofyear: 'dayOfYear',
+    h: 'hour',
+    hours: 'hour',
+    hour: 'hour',
+    ms: 'millisecond',
+    milliseconds: 'millisecond',
+    millisecond: 'millisecond',
+    m: 'minute',
+    minutes: 'minute',
+    minute: 'minute',
+    M: 'month',
+    months: 'month',
+    month: 'month',
+    Q: 'quarter',
+    quarters: 'quarter',
+    quarter: 'quarter',
+    s: 'second',
+    seconds: 'second',
+    second: 'second',
+    gg: 'weekYear',
+    weekyears: 'weekYear',
+    weekyear: 'weekYear',
+    GG: 'isoWeekYear',
+    isoweekyears: 'isoWeekYear',
+    isoweekyear: 'isoWeekYear',
+    w: 'week',
+    weeks: 'week',
+    week: 'week',
+    W: 'isoWeek',
+    isoweeks: 'isoWeek',
+    isoweek: 'isoWeek',
+    y: 'year',
+    years: 'year',
+    year: 'year',
+};
+
+function normalizeUnits(units) {
+    return typeof units === 'string'
+        ? aliases[units] || aliases[units.toLowerCase()]
+        : undefined;
+}
+
+function normalizeObjectUnits(inputObject) {
+    var normalizedInput = {},
+        normalizedProp,
+        prop;
+
+    for (prop in inputObject) {
+        if (hasOwnProp(inputObject, prop)) {
+            normalizedProp = normalizeUnits(prop);
+            if (normalizedProp) {
+                normalizedInput[normalizedProp] = inputObject[prop];
+            }
+        }
+    }
+
+    return normalizedInput;
+}
+
+var priorities = {
+    date: 9,
+    day: 11,
+    weekday: 11,
+    isoWeekday: 11,
+    dayOfYear: 4,
+    hour: 13,
+    millisecond: 16,
+    minute: 14,
+    month: 8,
+    quarter: 7,
+    second: 15,
+    weekYear: 1,
+    isoWeekYear: 1,
+    week: 5,
+    isoWeek: 5,
+    year: 1,
+};
+
+function getPrioritizedUnits(unitsObj) {
+    var units = [],
+        u;
+    for (u in unitsObj) {
+        if (hasOwnProp(unitsObj, u)) {
+            units.push({ unit: u, priority: priorities[u] });
+        }
+    }
+    units.sort(function (a, b) {
+        return a.priority - b.priority;
+    });
+    return units;
+}
+
+var match1 = /\d/, //       0 - 9
+    match2 = /\d\d/, //      00 - 99
+    match3 = /\d{3}/, //     000 - 999
+    match4 = /\d{4}/, //    0000 - 9999
+    match6 = /[+-]?\d{6}/, // -999999 - 999999
+    match1to2 = /\d\d?/, //       0 - 99
+    match3to4 = /\d\d\d\d?/, //     999 - 9999
+    match5to6 = /\d\d\d\d\d\d?/, //   99999 - 999999
+    match1to3 = /\d{1,3}/, //       0 - 999
+    match1to4 = /\d{1,4}/, //       0 - 9999
+    match1to6 = /[+-]?\d{1,6}/, // -999999 - 999999
+    matchUnsigned = /\d+/, //       0 - inf
+    matchSigned = /[+-]?\d+/, //    -inf - inf
+    matchOffset = /Z|[+-]\d\d:?\d\d/gi, // +00:00 -00:00 +0000 -0000 or Z
+    matchShortOffset = /Z|[+-]\d\d(?::?\d\d)?/gi, // +00 -00 +00:00 -00:00 +0000 -0000 or Z
+    matchTimestamp = /[+-]?\d+(\.\d{1,3})?/, // 123456789 123456789.123
+    // any word (or two) characters or numbers including two/three word month in arabic.
+    // includes scottish gaelic two word and hyphenated months
+    matchWord =
+        /[0-9]{0,256}['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFF07\uFF10-\uFFEF]{1,256}|[\u0600-\u06FF\/]{1,256}(\s*?[\u0600-\u06FF]{1,256}){1,2}/i,
+    match1to2NoLeadingZero = /^[1-9]\d?/, //         1-99
+    match1to2HasZero = /^([1-9]\d|\d)/, //           0-99
+    regexes;
+
+regexes = {};
+
+function addRegexToken(token, regex, strictRegex) {
+    regexes[token] = isFunction(regex)
+        ? regex
+        : function (isStrict, localeData) {
+              return isStrict && strictRegex ? strictRegex : regex;
+          };
+}
+
+function getParseRegexForToken(token, config) {
+    if (!hasOwnProp(regexes, token)) {
+        return new RegExp(unescapeFormat(token));
+    }
+
+    return regexes[token](config._strict, config._locale);
+}
+
+// Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript
+function unescapeFormat(s) {
+    return regexEscape(
+        s
+            .replace('\\', '')
+            .replace(
+                /\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g,
+                function (matched, p1, p2, p3, p4) {
+                    return p1 || p2 || p3 || p4;
+                }
+            )
+    );
+}
+
+function regexEscape(s) {
+    return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
+}
+
+function absFloor(number) {
+    if (number < 0) {
+        // -0 -> 0
+        return Math.ceil(number) || 0;
+    } else {
+        return Math.floor(number);
+    }
+}
+
+function toInt(argumentForCoercion) {
+    var coercedNumber = +argumentForCoercion,
+        value = 0;
+
+    if (coercedNumber !== 0 && isFinite(coercedNumber)) {
+        value = absFloor(coercedNumber);
+    }
+
+    return value;
+}
+
+var tokens = {};
+
+function addParseToken(token, callback) {
+    var i,
+        func = callback,
+        tokenLen;
+    if (typeof token === 'string') {
+        token = [token];
+    }
+    if (isNumber(callback)) {
+        func = function (input, array) {
+            array[callback] = toInt(input);
+        };
+    }
+    tokenLen = token.length;
+    for (i = 0; i < tokenLen; i++) {
+        tokens[token[i]] = func;
+    }
+}
+
+function addWeekParseToken(token, callback) {
+    addParseToken(token, function (input, array, config, token) {
+        config._w = config._w || {};
+        callback(input, config._w, config, token);
+    });
+}
+
+function addTimeToArrayFromToken(token, input, config) {
+    if (input != null && hasOwnProp(tokens, token)) {
+        tokens[token](input, config._a, config, token);
+    }
+}
+
+function isLeapYear(year) {
+    return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
+}
+
+var YEAR = 0,
+    MONTH = 1,
+    DATE = 2,
+    HOUR = 3,
+    MINUTE = 4,
+    SECOND = 5,
+    MILLISECOND = 6,
+    WEEK = 7,
+    WEEKDAY = 8;
+
+// FORMATTING
+
+addFormatToken('Y', 0, 0, function () {
+    var y = this.year();
+    return y <= 9999 ? zeroFill(y, 4) : '+' + y;
+});
+
+addFormatToken(0, ['YY', 2], 0, function () {
+    return this.year() % 100;
+});
+
+addFormatToken(0, ['YYYY', 4], 0, 'year');
+addFormatToken(0, ['YYYYY', 5], 0, 'year');
+addFormatToken(0, ['YYYYYY', 6, true], 0, 'year');
+
+// PARSING
+
+addRegexToken('Y', matchSigned);
+addRegexToken('YY', match1to2, match2);
+addRegexToken('YYYY', match1to4, match4);
+addRegexToken('YYYYY', match1to6, match6);
+addRegexToken('YYYYYY', match1to6, match6);
+
+addParseToken(['YYYYY', 'YYYYYY'], YEAR);
+addParseToken('YYYY', function (input, array) {
+    array[YEAR] =
+        input.length === 2 ? hooks.parseTwoDigitYear(input) : toInt(input);
+});
+addParseToken('YY', function (input, array) {
+    array[YEAR] = hooks.parseTwoDigitYear(input);
+});
+addParseToken('Y', function (input, array) {
+    array[YEAR] = parseInt(input, 10);
+});
+
+// HELPERS
+
+function daysInYear(year) {
+    return isLeapYear(year) ? 366 : 365;
+}
+
+// HOOKS
+
+hooks.parseTwoDigitYear = function (input) {
+    return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
+};
+
+// MOMENTS
+
+var getSetYear = makeGetSet('FullYear', true);
+
+function getIsLeapYear() {
+    return isLeapYear(this.year());
+}
+
+function makeGetSet(unit, keepTime) {
+    return function (value) {
+        if (value != null) {
+            set$1(this, unit, value);
+            hooks.updateOffset(this, keepTime);
+            return this;
+        } else {
+            return get(this, unit);
+        }
+    };
+}
+
+function get(mom, unit) {
+    if (!mom.isValid()) {
+        return NaN;
+    }
+
+    var d = mom._d,
+        isUTC = mom._isUTC;
+
+    switch (unit) {
+        case 'Milliseconds':
+            return isUTC ? d.getUTCMilliseconds() : d.getMilliseconds();
+        case 'Seconds':
+            return isUTC ? d.getUTCSeconds() : d.getSeconds();
+        case 'Minutes':
+            return isUTC ? d.getUTCMinutes() : d.getMinutes();
+        case 'Hours':
+            return isUTC ? d.getUTCHours() : d.getHours();
+        case 'Date':
+            return isUTC ? d.getUTCDate() : d.getDate();
+        case 'Day':
+            return isUTC ? d.getUTCDay() : d.getDay();
+        case 'Month':
+            return isUTC ? d.getUTCMonth() : d.getMonth();
+        case 'FullYear':
+            return isUTC ? d.getUTCFullYear() : d.getFullYear();
+        default:
+            return NaN; // Just in case
+    }
+}
+
+function set$1(mom, unit, value) {
+    var d, isUTC, year, month, date;
+
+    if (!mom.isValid() || isNaN(value)) {
+        return;
+    }
+
+    d = mom._d;
+    isUTC = mom._isUTC;
+
+    switch (unit) {
+        case 'Milliseconds':
+            return void (isUTC
+                ? d.setUTCMilliseconds(value)
+                : d.setMilliseconds(value));
+        case 'Seconds':
+            return void (isUTC ? d.setUTCSeconds(value) : d.setSeconds(value));
+        case 'Minutes':
+            return void (isUTC ? d.setUTCMinutes(value) : d.setMinutes(value));
+        case 'Hours':
+            return void (isUTC ? d.setUTCHours(value) : d.setHours(value));
+        case 'Date':
+            return void (isUTC ? d.setUTCDate(value) : d.setDate(value));
+        // case 'Day': // Not real
+        //    return void (isUTC ? d.setUTCDay(value) : d.setDay(value));
+        // case 'Month': // Not used because we need to pass two variables
+        //     return void (isUTC ? d.setUTCMonth(value) : d.setMonth(value));
+        case 'FullYear':
+            break; // See below ...
+        default:
+            return; // Just in case
+    }
+
+    year = value;
+    month = mom.month();
+    date = mom.date();
+    date = date === 29 && month === 1 && !isLeapYear(year) ? 28 : date;
+    void (isUTC
+        ? d.setUTCFullYear(year, month, date)
+        : d.setFullYear(year, month, date));
+}
+
+// MOMENTS
+
+function stringGet(units) {
+    units = normalizeUnits(units);
+    if (isFunction(this[units])) {
+        return this[units]();
+    }
+    return this;
+}
+
+function stringSet(units, value) {
+    if (typeof units === 'object') {
+        units = normalizeObjectUnits(units);
+        var prioritized = getPrioritizedUnits(units),
+            i,
+            prioritizedLen = prioritized.length;
+        for (i = 0; i < prioritizedLen; i++) {
+            this[prioritized[i].unit](units[prioritized[i].unit]);
+        }
+    } else {
+        units = normalizeUnits(units);
+        if (isFunction(this[units])) {
+            return this[units](value);
+        }
+    }
+    return this;
+}
+
+function mod(n, x) {
+    return ((n % x) + x) % x;
+}
+
+var indexOf;
+
+if (Array.prototype.indexOf) {
+    indexOf = Array.prototype.indexOf;
+} else {
+    indexOf = function (o) {
+        // I know
+        var i;
+        for (i = 0; i < this.length; ++i) {
+            if (this[i] === o) {
+                return i;
+            }
+        }
+        return -1;
+    };
+}
+
+function daysInMonth(year, month) {
+    if (isNaN(year) || isNaN(month)) {
+        return NaN;
+    }
+    var modMonth = mod(month, 12);
+    year += (month - modMonth) / 12;
+    return modMonth === 1
+        ? isLeapYear(year)
+            ? 29
+            : 28
+        : 31 - ((modMonth % 7) % 2);
+}
+
+// FORMATTING
+
+addFormatToken('M', ['MM', 2], 'Mo', function () {
+    return this.month() + 1;
+});
+
+addFormatToken('MMM', 0, 0, function (format) {
+    return this.localeData().monthsShort(this, format);
+});
+
+addFormatToken('MMMM', 0, 0, function (format) {
+    return this.localeData().months(this, format);
+});
+
+// PARSING
+
+addRegexToken('M', match1to2, match1to2NoLeadingZero);
+addRegexToken('MM', match1to2, match2);
+addRegexToken('MMM', function (isStrict, locale) {
+    return locale.monthsShortRegex(isStrict);
+});
+addRegexToken('MMMM', function (isStrict, locale) {
+    return locale.monthsRegex(isStrict);
+});
+
+addParseToken(['M', 'MM'], function (input, array) {
+    array[MONTH] = toInt(input) - 1;
+});
+
+addParseToken(['MMM', 'MMMM'], function (input, array, config, token) {
+    var month = config._locale.monthsParse(input, token, config._strict);
+    // if we didn't find a month name, mark the date as invalid.
+    if (month != null) {
+        array[MONTH] = month;
+    } else {
+        getParsingFlags(config).invalidMonth = input;
+    }
+});
+
+// LOCALES
+
+var defaultLocaleMonths =
+        'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+    defaultLocaleMonthsShort =
+        'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+    MONTHS_IN_FORMAT = /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?/,
+    defaultMonthsShortRegex = matchWord,
+    defaultMonthsRegex = matchWord;
+
+function localeMonths(m, format) {
+    if (!m) {
+        return isArray(this._months)
+            ? this._months
+            : this._months['standalone'];
+    }
+    return isArray(this._months)
+        ? this._months[m.month()]
+        : this._months[
+              (this._months.isFormat || MONTHS_IN_FORMAT).test(format)
+                  ? 'format'
+                  : 'standalone'
+          ][m.month()];
+}
+
+function localeMonthsShort(m, format) {
+    if (!m) {
+        return isArray(this._monthsShort)
+            ? this._monthsShort
+            : this._monthsShort['standalone'];
+    }
+    return isArray(this._monthsShort)
+        ? this._monthsShort[m.month()]
+        : this._monthsShort[
+              MONTHS_IN_FORMAT.test(format) ? 'format' : 'standalone'
+          ][m.month()];
+}
+
+function handleStrictParse(monthName, format, strict) {
+    var i,
+        ii,
+        mom,
+        llc = monthName.toLocaleLowerCase();
+    if (!this._monthsParse) {
+        // this is not used
+        this._monthsParse = [];
+        this._longMonthsParse = [];
+        this._shortMonthsParse = [];
+        for (i = 0; i < 12; ++i) {
+            mom = createUTC([2000, i]);
+            this._shortMonthsParse[i] = this.monthsShort(
+                mom,
+                ''
+            ).toLocaleLowerCase();
+            this._longMonthsParse[i] = this.months(mom, '').toLocaleLowerCase();
+        }
+    }
+
+    if (strict) {
+        if (format === 'MMM') {
+            ii = indexOf.call(this._shortMonthsParse, llc);
+            return ii !== -1 ? ii : null;
+        } else {
+            ii = indexOf.call(this._longMonthsParse, llc);
+            return ii !== -1 ? ii : null;
+        }
+    } else {
+        if (format === 'MMM') {
+            ii = indexOf.call(this._shortMonthsParse, llc);
+            if (ii !== -1) {
+                return ii;
+            }
+            ii = indexOf.call(this._longMonthsParse, llc);
+            return ii !== -1 ? ii : null;
+        } else {
+            ii = indexOf.call(this._longMonthsParse, llc);
+            if (ii !== -1) {
+                return ii;
+            }
+            ii = indexOf.call(this._shortMonthsParse, llc);
+            return ii !== -1 ? ii : null;
+        }
+    }
+}
+
+function localeMonthsParse(monthName, format, strict) {
+    var i, mom, regex;
+
+    if (this._monthsParseExact) {
+        return handleStrictParse.call(this, monthName, format, strict);
+    }
+
+    if (!this._monthsParse) {
+        this._monthsParse = [];
+        this._longMonthsParse = [];
+        this._shortMonthsParse = [];
+    }
+
+    // TODO: add sorting
+    // Sorting makes sure if one month (or abbr) is a prefix of another
+    // see sorting in computeMonthsParse
+    for (i = 0; i < 12; i++) {
+        // make the regex if we don't have it already
+        mom = createUTC([2000, i]);
+        if (strict && !this._longMonthsParse[i]) {
+            this._longMonthsParse[i] = new RegExp(
+                '^' + this.months(mom, '').replace('.', '') + '$',
+                'i'
+            );
+            this._shortMonthsParse[i] = new RegExp(
+                '^' + this.monthsShort(mom, '').replace('.', '') + '$',
+                'i'
+            );
+        }
+        if (!strict && !this._monthsParse[i]) {
+            regex =
+                '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');
+            this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');
+        }
+        // test the regex
+        if (
+            strict &&
+            format === 'MMMM' &&
+            this._longMonthsParse[i].test(monthName)
+        ) {
+            return i;
+        } else if (
+            strict &&
+            format === 'MMM' &&
+            this._shortMonthsParse[i].test(monthName)
+        ) {
+            return i;
+        } else if (!strict && this._monthsParse[i].test(monthName)) {
+            return i;
+        }
+    }
+}
+
+// MOMENTS
+
+function setMonth(mom, value) {
+    if (!mom.isValid()) {
+        // No op
+        return mom;
+    }
+
+    if (typeof value === 'string') {
+        if (/^\d+$/.test(value)) {
+            value = toInt(value);
+        } else {
+            value = mom.localeData().monthsParse(value);
+            // TODO: Another silent failure?
+            if (!isNumber(value)) {
+                return mom;
+            }
+        }
+    }
+
+    var month = value,
+        date = mom.date();
+
+    date = date < 29 ? date : Math.min(date, daysInMonth(mom.year(), month));
+    void (mom._isUTC
+        ? mom._d.setUTCMonth(month, date)
+        : mom._d.setMonth(month, date));
+    return mom;
+}
+
+function getSetMonth(value) {
+    if (value != null) {
+        setMonth(this, value);
+        hooks.updateOffset(this, true);
+        return this;
+    } else {
+        return get(this, 'Month');
+    }
+}
+
+function getDaysInMonth() {
+    return daysInMonth(this.year(), this.month());
+}
+
+function monthsShortRegex(isStrict) {
+    if (this._monthsParseExact) {
+        if (!hasOwnProp(this, '_monthsRegex')) {
+            computeMonthsParse.call(this);
+        }
+        if (isStrict) {
+            return this._monthsShortStrictRegex;
+        } else {
+            return this._monthsShortRegex;
+        }
+    } else {
+        if (!hasOwnProp(this, '_monthsShortRegex')) {
+            this._monthsShortRegex = defaultMonthsShortRegex;
+        }
+        return this._monthsShortStrictRegex && isStrict
+            ? this._monthsShortStrictRegex
+            : this._monthsShortRegex;
+    }
+}
+
+function monthsRegex(isStrict) {
+    if (this._monthsParseExact) {
+        if (!hasOwnProp(this, '_monthsRegex')) {
+            computeMonthsParse.call(this);
+        }
+        if (isStrict) {
+            return this._monthsStrictRegex;
+        } else {
+            return this._monthsRegex;
+        }
+    } else {
+        if (!hasOwnProp(this, '_monthsRegex')) {
+            this._monthsRegex = defaultMonthsRegex;
+        }
+        return this._monthsStrictRegex && isStrict
+            ? this._monthsStrictRegex
+            : this._monthsRegex;
+    }
+}
+
+function computeMonthsParse() {
+    function cmpLenRev(a, b) {
+        return b.length - a.length;
+    }
+
+    var shortPieces = [],
+        longPieces = [],
+        mixedPieces = [],
+        i,
+        mom,
+        shortP,
+        longP;
+    for (i = 0; i < 12; i++) {
+        // make the regex if we don't have it already
+        mom = createUTC([2000, i]);
+        shortP = regexEscape(this.monthsShort(mom, ''));
+        longP = regexEscape(this.months(mom, ''));
+        shortPieces.push(shortP);
+        longPieces.push(longP);
+        mixedPieces.push(longP);
+        mixedPieces.push(shortP);
+    }
+    // Sorting makes sure if one month (or abbr) is a prefix of another it
+    // will match the longer piece.
+    shortPieces.sort(cmpLenRev);
+    longPieces.sort(cmpLenRev);
+    mixedPieces.sort(cmpLenRev);
+
+    this._monthsRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
+    this._monthsShortRegex = this._monthsRegex;
+    this._monthsStrictRegex = new RegExp(
+        '^(' + longPieces.join('|') + ')',
+        'i'
+    );
+    this._monthsShortStrictRegex = new RegExp(
+        '^(' + shortPieces.join('|') + ')',
+        'i'
+    );
+}
+
+function createDate(y, m, d, h, M, s, ms) {
+    // can't just apply() to create a date:
+    // https://stackoverflow.com/q/181348
+    var date;
+    // the date constructor remaps years 0-99 to 1900-1999
+    if (y < 100 && y >= 0) {
+        // preserve leap years using a full 400 year cycle, then reset
+        date = new Date(y + 400, m, d, h, M, s, ms);
+        if (isFinite(date.getFullYear())) {
+            date.setFullYear(y);
+        }
+    } else {
+        date = new Date(y, m, d, h, M, s, ms);
+    }
+
+    return date;
+}
+
+function createUTCDate(y) {
+    var date, args;
+    // the Date.UTC function remaps years 0-99 to 1900-1999
+    if (y < 100 && y >= 0) {
+        args = Array.prototype.slice.call(arguments);
+        // preserve leap years using a full 400 year cycle, then reset
+        args[0] = y + 400;
+        date = new Date(Date.UTC.apply(null, args));
+        if (isFinite(date.getUTCFullYear())) {
+            date.setUTCFullYear(y);
+        }
+    } else {
+        date = new Date(Date.UTC.apply(null, arguments));
+    }
+
+    return date;
+}
+
+// start-of-first-week - start-of-year
+function firstWeekOffset(year, dow, doy) {
+    var // first-week day -- which january is always in the first week (4 for iso, 1 for other)
+        fwd = 7 + dow - doy,
+        // first-week day local weekday -- which local weekday is fwd
+        fwdlw = (7 + createUTCDate(year, 0, fwd).getUTCDay() - dow) % 7;
+
+    return -fwdlw + fwd - 1;
+}
+
+// https://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday
+function dayOfYearFromWeeks(year, week, weekday, dow, doy) {
+    var localWeekday = (7 + weekday - dow) % 7,
+        weekOffset = firstWeekOffset(year, dow, doy),
+        dayOfYear = 1 + 7 * (week - 1) + localWeekday + weekOffset,
+        resYear,
+        resDayOfYear;
+
+    if (dayOfYear <= 0) {
+        resYear = year - 1;
+        resDayOfYear = daysInYear(resYear) + dayOfYear;
+    } else if (dayOfYear > daysInYear(year)) {
+        resYear = year + 1;
+        resDayOfYear = dayOfYear - daysInYear(year);
+    } else {
+        resYear = year;
+        resDayOfYear = dayOfYear;
+    }
+
+    return {
+        year: resYear,
+        dayOfYear: resDayOfYear,
+    };
+}
+
+function weekOfYear(mom, dow, doy) {
+    var weekOffset = firstWeekOffset(mom.year(), dow, doy),
+        week = Math.floor((mom.dayOfYear() - weekOffset - 1) / 7) + 1,
+        resWeek,
+        resYear;
+
+    if (week < 1) {
+        resYear = mom.year() - 1;
+        resWeek = week + weeksInYear(resYear, dow, doy);
+    } else if (week > weeksInYear(mom.year(), dow, doy)) {
+        resWeek = week - weeksInYear(mom.year(), dow, doy);
+        resYear = mom.year() + 1;
+    } else {
+        resYear = mom.year();
+        resWeek = week;
+    }
+
+    return {
+        week: resWeek,
+        year: resYear,
+    };
+}
+
+function weeksInYear(year, dow, doy) {
+    var weekOffset = firstWeekOffset(year, dow, doy),
+        weekOffsetNext = firstWeekOffset(year + 1, dow, doy);
+    return (daysInYear(year) - weekOffset + weekOffsetNext) / 7;
+}
+
+// FORMATTING
+
+addFormatToken('w', ['ww', 2], 'wo', 'week');
+addFormatToken('W', ['WW', 2], 'Wo', 'isoWeek');
+
+// PARSING
+
+addRegexToken('w', match1to2, match1to2NoLeadingZero);
+addRegexToken('ww', match1to2, match2);
+addRegexToken('W', match1to2, match1to2NoLeadingZero);
+addRegexToken('WW', match1to2, match2);
+
+addWeekParseToken(
+    ['w', 'ww', 'W', 'WW'],
+    function (input, week, config, token) {
+        week[token.substr(0, 1)] = toInt(input);
+    }
+);
+
+// HELPERS
+
+// LOCALES
+
+function localeWeek(mom) {
+    return weekOfYear(mom, this._week.dow, this._week.doy).week;
+}
+
+var defaultLocaleWeek = {
+    dow: 0, // Sunday is the first day of the week.
+    doy: 6, // The week that contains Jan 6th is the first week of the year.
+};
+
+function localeFirstDayOfWeek() {
+    return this._week.dow;
+}
+
+function localeFirstDayOfYear() {
+    return this._week.doy;
+}
+
+// MOMENTS
+
+function getSetWeek(input) {
+    var week = this.localeData().week(this);
+    return input == null ? week : this.add((input - week) * 7, 'd');
+}
+
+function getSetISOWeek(input) {
+    var week = weekOfYear(this, 1, 4).week;
+    return input == null ? week : this.add((input - week) * 7, 'd');
+}
+
+// FORMATTING
+
+addFormatToken('d', 0, 'do', 'day');
+
+addFormatToken('dd', 0, 0, function (format) {
+    return this.localeData().weekdaysMin(this, format);
+});
+
+addFormatToken('ddd', 0, 0, function (format) {
+    return this.localeData().weekdaysShort(this, format);
+});
+
+addFormatToken('dddd', 0, 0, function (format) {
+    return this.localeData().weekdays(this, format);
+});
+
+addFormatToken('e', 0, 0, 'weekday');
+addFormatToken('E', 0, 0, 'isoWeekday');
+
+// PARSING
+
+addRegexToken('d', match1to2);
+addRegexToken('e', match1to2);
+addRegexToken('E', match1to2);
+addRegexToken('dd', function (isStrict, locale) {
+    return locale.weekdaysMinRegex(isStrict);
+});
+addRegexToken('ddd', function (isStrict, locale) {
+    return locale.weekdaysShortRegex(isStrict);
+});
+addRegexToken('dddd', function (isStrict, locale) {
+    return locale.weekdaysRegex(isStrict);
+});
+
+addWeekParseToken(['dd', 'ddd', 'dddd'], function (input, week, config, token) {
+    var weekday = config._locale.weekdaysParse(input, token, config._strict);
+    // if we didn't get a weekday name, mark the date as invalid
+    if (weekday != null) {
+        week.d = weekday;
+    } else {
+        getParsingFlags(config).invalidWeekday = input;
+    }
+});
+
+addWeekParseToken(['d', 'e', 'E'], function (input, week, config, token) {
+    week[token] = toInt(input);
+});
+
+// HELPERS
+
+function parseWeekday(input, locale) {
+    if (typeof input !== 'string') {
+        return input;
+    }
+
+    if (!isNaN(input)) {
+        return parseInt(input, 10);
+    }
+
+    input = locale.weekdaysParse(input);
+    if (typeof input === 'number') {
+        return input;
+    }
+
+    return null;
+}
+
+function parseIsoWeekday(input, locale) {
+    if (typeof input === 'string') {
+        return locale.weekdaysParse(input) % 7 || 7;
+    }
+    return isNaN(input) ? null : input;
+}
+
+// LOCALES
+function shiftWeekdays(ws, n) {
+    return ws.slice(n, 7).concat(ws.slice(0, n));
+}
+
+var defaultLocaleWeekdays =
+        'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_'),
+    defaultLocaleWeekdaysShort = 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+    defaultLocaleWeekdaysMin = 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+    defaultWeekdaysRegex = matchWord,
+    defaultWeekdaysShortRegex = matchWord,
+    defaultWeekdaysMinRegex = matchWord;
+
+function localeWeekdays(m, format) {
+    var weekdays = isArray(this._weekdays)
+        ? this._weekdays
+        : this._weekdays[
+              m && m !== true && this._weekdays.isFormat.test(format)
+                  ? 'format'
+                  : 'standalone'
+          ];
+    return m === true
+        ? shiftWeekdays(weekdays, this._week.dow)
+        : m
+          ? weekdays[m.day()]
+          : weekdays;
+}
+
+function localeWeekdaysShort(m) {
+    return m === true
+        ? shiftWeekdays(this._weekdaysShort, this._week.dow)
+        : m
+          ? this._weekdaysShort[m.day()]
+          : this._weekdaysShort;
+}
+
+function localeWeekdaysMin(m) {
+    return m === true
+        ? shiftWeekdays(this._weekdaysMin, this._week.dow)
+        : m
+          ? this._weekdaysMin[m.day()]
+          : this._weekdaysMin;
+}
+
+function handleStrictParse$1(weekdayName, format, strict) {
+    var i,
+        ii,
+        mom,
+        llc = weekdayName.toLocaleLowerCase();
+    if (!this._weekdaysParse) {
+        this._weekdaysParse = [];
+        this._shortWeekdaysParse = [];
+        this._minWeekdaysParse = [];
+
+        for (i = 0; i < 7; ++i) {
+            mom = createUTC([2000, 1]).day(i);
+            this._minWeekdaysParse[i] = this.weekdaysMin(
+                mom,
+                ''
+            ).toLocaleLowerCase();
+            this._shortWeekdaysParse[i] = this.weekdaysShort(
+                mom,
+                ''
+            ).toLocaleLowerCase();
+            this._weekdaysParse[i] = this.weekdays(mom, '').toLocaleLowerCase();
+        }
+    }
+
+    if (strict) {
+        if (format === 'dddd') {
+            ii = indexOf.call(this._weekdaysParse, llc);
+            return ii !== -1 ? ii : null;
+        } else if (format === 'ddd') {
+            ii = indexOf.call(this._shortWeekdaysParse, llc);
+            return ii !== -1 ? ii : null;
+        } else {
+            ii = indexOf.call(this._minWeekdaysParse, llc);
+            return ii !== -1 ? ii : null;
+        }
+    } else {
+        if (format === 'dddd') {
+            ii = indexOf.call(this._weekdaysParse, llc);
+            if (ii !== -1) {
+                return ii;
+            }
+            ii = indexOf.call(this._shortWeekdaysParse, llc);
+            if (ii !== -1) {
+                return ii;
+            }
+            ii = indexOf.call(this._minWeekdaysParse, llc);
+            return ii !== -1 ? ii : null;
+        } else if (format === 'ddd') {
+            ii = indexOf.call(this._shortWeekdaysParse, llc);
+            if (ii !== -1) {
+                return ii;
+            }
+            ii = indexOf.call(this._weekdaysParse, llc);
+            if (ii !== -1) {
+                return ii;
+            }
+            ii = indexOf.call(this._minWeekdaysParse, llc);
+            return ii !== -1 ? ii : null;
+        } else {
+            ii = indexOf.call(this._minWeekdaysParse, llc);
+            if (ii !== -1) {
+                return ii;
+            }
+            ii = indexOf.call(this._weekdaysParse, llc);
+            if (ii !== -1) {
+                return ii;
+            }
+            ii = indexOf.call(this._shortWeekdaysParse, llc);
+            return ii !== -1 ? ii : null;
+        }
+    }
+}
+
+function localeWeekdaysParse(weekdayName, format, strict) {
+    var i, mom, regex;
+
+    if (this._weekdaysParseExact) {
+        return handleStrictParse$1.call(this, weekdayName, format, strict);
+    }
+
+    if (!this._weekdaysParse) {
+        this._weekdaysParse = [];
+        this._minWeekdaysParse = [];
+        this._shortWeekdaysParse = [];
+        this._fullWeekdaysParse = [];
+    }
+
+    for (i = 0; i < 7; i++) {
+        // make the regex if we don't have it already
+
+        mom = createUTC([2000, 1]).day(i);
+        if (strict && !this._fullWeekdaysParse[i]) {
+            this._fullWeekdaysParse[i] = new RegExp(
+                '^' + this.weekdays(mom, '').replace('.', '\\.?') + '$',
+                'i'
+            );
+            this._shortWeekdaysParse[i] = new RegExp(
+                '^' + this.weekdaysShort(mom, '').replace('.', '\\.?') + '$',
+                'i'
+            );
+            this._minWeekdaysParse[i] = new RegExp(
+                '^' + this.weekdaysMin(mom, '').replace('.', '\\.?') + '$',
+                'i'
+            );
+        }
+        if (!this._weekdaysParse[i]) {
+            regex =
+                '^' +
+                this.weekdays(mom, '') +
+                '|^' +
+                this.weekdaysShort(mom, '') +
+                '|^' +
+                this.weekdaysMin(mom, '');
+            this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');
+        }
+        // test the regex
+        if (
+            strict &&
+            format === 'dddd' &&
+            this._fullWeekdaysParse[i].test(weekdayName)
+        ) {
+            return i;
+        } else if (
+            strict &&
+            format === 'ddd' &&
+            this._shortWeekdaysParse[i].test(weekdayName)
+        ) {
+            return i;
+        } else if (
+            strict &&
+            format === 'dd' &&
+            this._minWeekdaysParse[i].test(weekdayName)
+        ) {
+            return i;
+        } else if (!strict && this._weekdaysParse[i].test(weekdayName)) {
+            return i;
+        }
+    }
+}
+
+// MOMENTS
+
+function getSetDayOfWeek(input) {
+    if (!this.isValid()) {
+        return input != null ? this : NaN;
+    }
+
+    var day = get(this, 'Day');
+    if (input != null) {
+        input = parseWeekday(input, this.localeData());
+        return this.add(input - day, 'd');
+    } else {
+        return day;
+    }
+}
+
+function getSetLocaleDayOfWeek(input) {
+    if (!this.isValid()) {
+        return input != null ? this : NaN;
+    }
+    var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7;
+    return input == null ? weekday : this.add(input - weekday, 'd');
+}
+
+function getSetISODayOfWeek(input) {
+    if (!this.isValid()) {
+        return input != null ? this : NaN;
+    }
+
+    // behaves the same as moment#day except
+    // as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)
+    // as a setter, sunday should belong to the previous week.
+
+    if (input != null) {
+        var weekday = parseIsoWeekday(input, this.localeData());
+        return this.day(this.day() % 7 ? weekday : weekday - 7);
+    } else {
+        return this.day() || 7;
+    }
+}
+
+function weekdaysRegex(isStrict) {
+    if (this._weekdaysParseExact) {
+        if (!hasOwnProp(this, '_weekdaysRegex')) {
+            computeWeekdaysParse.call(this);
+        }
+        if (isStrict) {
+            return this._weekdaysStrictRegex;
+        } else {
+            return this._weekdaysRegex;
+        }
+    } else {
+        if (!hasOwnProp(this, '_weekdaysRegex')) {
+            this._weekdaysRegex = defaultWeekdaysRegex;
+        }
+        return this._weekdaysStrictRegex && isStrict
+            ? this._weekdaysStrictRegex
+            : this._weekdaysRegex;
+    }
+}
+
+function weekdaysShortRegex(isStrict) {
+    if (this._weekdaysParseExact) {
+        if (!hasOwnProp(this, '_weekdaysRegex')) {
+            computeWeekdaysParse.call(this);
+        }
+        if (isStrict) {
+            return this._weekdaysShortStrictRegex;
+        } else {
+            return this._weekdaysShortRegex;
+        }
+    } else {
+        if (!hasOwnProp(this, '_weekdaysShortRegex')) {
+            this._weekdaysShortRegex = defaultWeekdaysShortRegex;
+        }
+        return this._weekdaysShortStrictRegex && isStrict
+            ? this._weekdaysShortStrictRegex
+            : this._weekdaysShortRegex;
+    }
+}
+
+function weekdaysMinRegex(isStrict) {
+    if (this._weekdaysParseExact) {
+        if (!hasOwnProp(this, '_weekdaysRegex')) {
+            computeWeekdaysParse.call(this);
+        }
+        if (isStrict) {
+            return this._weekdaysMinStrictRegex;
+        } else {
+            return this._weekdaysMinRegex;
+        }
+    } else {
+        if (!hasOwnProp(this, '_weekdaysMinRegex')) {
+            this._weekdaysMinRegex = defaultWeekdaysMinRegex;
+        }
+        return this._weekdaysMinStrictRegex && isStrict
+            ? this._weekdaysMinStrictRegex
+            : this._weekdaysMinRegex;
+    }
+}
+
+function computeWeekdaysParse() {
+    function cmpLenRev(a, b) {
+        return b.length - a.length;
+    }
+
+    var minPieces = [],
+        shortPieces = [],
+        longPieces = [],
+        mixedPieces = [],
+        i,
+        mom,
+        minp,
+        shortp,
+        longp;
+    for (i = 0; i < 7; i++) {
+        // make the regex if we don't have it already
+        mom = createUTC([2000, 1]).day(i);
+        minp = regexEscape(this.weekdaysMin(mom, ''));
+        shortp = regexEscape(this.weekdaysShort(mom, ''));
+        longp = regexEscape(this.weekdays(mom, ''));
+        minPieces.push(minp);
+        shortPieces.push(shortp);
+        longPieces.push(longp);
+        mixedPieces.push(minp);
+        mixedPieces.push(shortp);
+        mixedPieces.push(longp);
+    }
+    // Sorting makes sure if one weekday (or abbr) is a prefix of another it
+    // will match the longer piece.
+    minPieces.sort(cmpLenRev);
+    shortPieces.sort(cmpLenRev);
+    longPieces.sort(cmpLenRev);
+    mixedPieces.sort(cmpLenRev);
+
+    this._weekdaysRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
+    this._weekdaysShortRegex = this._weekdaysRegex;
+    this._weekdaysMinRegex = this._weekdaysRegex;
+
+    this._weekdaysStrictRegex = new RegExp(
+        '^(' + longPieces.join('|') + ')',
+        'i'
+    );
+    this._weekdaysShortStrictRegex = new RegExp(
+        '^(' + shortPieces.join('|') + ')',
+        'i'
+    );
+    this._weekdaysMinStrictRegex = new RegExp(
+        '^(' + minPieces.join('|') + ')',
+        'i'
+    );
+}
+
+// FORMATTING
+
+function hFormat() {
+    return this.hours() % 12 || 12;
+}
+
+function kFormat() {
+    return this.hours() || 24;
+}
+
+addFormatToken('H', ['HH', 2], 0, 'hour');
+addFormatToken('h', ['hh', 2], 0, hFormat);
+addFormatToken('k', ['kk', 2], 0, kFormat);
+
+addFormatToken('hmm', 0, 0, function () {
+    return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2);
+});
+
+addFormatToken('hmmss', 0, 0, function () {
+    return (
+        '' +
+        hFormat.apply(this) +
+        zeroFill(this.minutes(), 2) +
+        zeroFill(this.seconds(), 2)
+    );
+});
+
+addFormatToken('Hmm', 0, 0, function () {
+    return '' + this.hours() + zeroFill(this.minutes(), 2);
+});
+
+addFormatToken('Hmmss', 0, 0, function () {
+    return (
+        '' +
+        this.hours() +
+        zeroFill(this.minutes(), 2) +
+        zeroFill(this.seconds(), 2)
+    );
+});
+
+function meridiem(token, lowercase) {
+    addFormatToken(token, 0, 0, function () {
+        return this.localeData().meridiem(
+            this.hours(),
+            this.minutes(),
+            lowercase
+        );
+    });
+}
+
+meridiem('a', true);
+meridiem('A', false);
+
+// PARSING
+
+function matchMeridiem(isStrict, locale) {
+    return locale._meridiemParse;
+}
+
+addRegexToken('a', matchMeridiem);
+addRegexToken('A', matchMeridiem);
+addRegexToken('H', match1to2, match1to2HasZero);
+addRegexToken('h', match1to2, match1to2NoLeadingZero);
+addRegexToken('k', match1to2, match1to2NoLeadingZero);
+addRegexToken('HH', match1to2, match2);
+addRegexToken('hh', match1to2, match2);
+addRegexToken('kk', match1to2, match2);
+
+addRegexToken('hmm', match3to4);
+addRegexToken('hmmss', match5to6);
+addRegexToken('Hmm', match3to4);
+addRegexToken('Hmmss', match5to6);
+
+addParseToken(['H', 'HH'], HOUR);
+addParseToken(['k', 'kk'], function (input, array, config) {
+    var kInput = toInt(input);
+    array[HOUR] = kInput === 24 ? 0 : kInput;
+});
+addParseToken(['a', 'A'], function (input, array, config) {
+    config._isPm = config._locale.isPM(input);
+    config._meridiem = input;
+});
+addParseToken(['h', 'hh'], function (input, array, config) {
+    array[HOUR] = toInt(input);
+    getParsingFlags(config).bigHour = true;
+});
+addParseToken('hmm', function (input, array, config) {
+    var pos = input.length - 2;
+    array[HOUR] = toInt(input.substr(0, pos));
+    array[MINUTE] = toInt(input.substr(pos));
+    getParsingFlags(config).bigHour = true;
+});
+addParseToken('hmmss', function (input, array, config) {
+    var pos1 = input.length - 4,
+        pos2 = input.length - 2;
+    array[HOUR] = toInt(input.substr(0, pos1));
+    array[MINUTE] = toInt(input.substr(pos1, 2));
+    array[SECOND] = toInt(input.substr(pos2));
+    getParsingFlags(config).bigHour = true;
+});
+addParseToken('Hmm', function (input, array, config) {
+    var pos = input.length - 2;
+    array[HOUR] = toInt(input.substr(0, pos));
+    array[MINUTE] = toInt(input.substr(pos));
+});
+addParseToken('Hmmss', function (input, array, config) {
+    var pos1 = input.length - 4,
+        pos2 = input.length - 2;
+    array[HOUR] = toInt(input.substr(0, pos1));
+    array[MINUTE] = toInt(input.substr(pos1, 2));
+    array[SECOND] = toInt(input.substr(pos2));
+});
+
+// LOCALES
+
+function localeIsPM(input) {
+    // IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays
+    // Using charAt should be more compatible.
+    return (input + '').toLowerCase().charAt(0) === 'p';
+}
+
+var defaultLocaleMeridiemParse = /[ap]\.?m?\.?/i,
+    // Setting the hour should keep the time, because the user explicitly
+    // specified which hour they want. So trying to maintain the same hour (in
+    // a new timezone) makes sense. Adding/subtracting hours does not follow
+    // this rule.
+    getSetHour = makeGetSet('Hours', true);
+
+function localeMeridiem(hours, minutes, isLower) {
+    if (hours > 11) {
+        return isLower ? 'pm' : 'PM';
+    } else {
+        return isLower ? 'am' : 'AM';
+    }
+}
+
+var baseConfig = {
+    calendar: defaultCalendar,
+    longDateFormat: defaultLongDateFormat,
+    invalidDate: defaultInvalidDate,
+    ordinal: defaultOrdinal,
+    dayOfMonthOrdinalParse: defaultDayOfMonthOrdinalParse,
+    relativeTime: defaultRelativeTime,
+
+    months: defaultLocaleMonths,
+    monthsShort: defaultLocaleMonthsShort,
+
+    week: defaultLocaleWeek,
+
+    weekdays: defaultLocaleWeekdays,
+    weekdaysMin: defaultLocaleWeekdaysMin,
+    weekdaysShort: defaultLocaleWeekdaysShort,
+
+    meridiemParse: defaultLocaleMeridiemParse,
+};
+
+// internal storage for locale config files
+var locales = {},
+    localeFamilies = {},
+    globalLocale;
+
+function commonPrefix(arr1, arr2) {
+    var i,
+        minl = Math.min(arr1.length, arr2.length);
+    for (i = 0; i < minl; i += 1) {
+        if (arr1[i] !== arr2[i]) {
+            return i;
+        }
+    }
+    return minl;
+}
+
+function normalizeLocale(key) {
+    return key ? key.toLowerCase().replace('_', '-') : key;
+}
+
+// pick the locale from the array
+// try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each
+// substring from most specific to least, but move to the next array item if it's a more specific variant than the current root
+function chooseLocale(names) {
+    var i = 0,
+        j,
+        next,
+        locale,
+        split;
+
+    while (i < names.length) {
+        split = normalizeLocale(names[i]).split('-');
+        j = split.length;
+        next = normalizeLocale(names[i + 1]);
+        next = next ? next.split('-') : null;
+        while (j > 0) {
+            locale = loadLocale(split.slice(0, j).join('-'));
+            if (locale) {
+                return locale;
+            }
+            if (
+                next &&
+                next.length >= j &&
+                commonPrefix(split, next) >= j - 1
+            ) {
+                //the next array item is better than a shallower substring of this one
+                break;
+            }
+            j--;
+        }
+        i++;
+    }
+    return globalLocale;
+}
+
+function isLocaleNameSane(name) {
+    // Prevent names that look like filesystem paths, i.e contain '/' or '\'
+    // Ensure name is available and function returns boolean
+    return !!(name && name.match('^[^/\\\\]*$'));
+}
+
+function loadLocale(name) {
+    var oldLocale = null,
+        aliasedRequire;
+    // TODO: Find a better way to register and load all the locales in Node
+    if (
+        locales[name] === undefined &&
+        typeof module !== 'undefined' &&
+        module &&
+        module.exports &&
+        isLocaleNameSane(name)
+    ) {
+        try {
+            oldLocale = globalLocale._abbr;
+            aliasedRequire = require;
+            aliasedRequire('./locale/' + name);
+            getSetGlobalLocale(oldLocale);
+        } catch (e) {
+            // mark as not found to avoid repeating expensive file require call causing high CPU
+            // when trying to find en-US, en_US, en-us for every format call
+            locales[name] = null; // null means not found
+        }
+    }
+    return locales[name];
+}
+
+// This function will load locale and then set the global locale.  If
+// no arguments are passed in, it will simply return the current global
+// locale key.
+function getSetGlobalLocale(key, values) {
+    var data;
+    if (key) {
+        if (isUndefined(values)) {
+            data = getLocale(key);
+        } else {
+            data = defineLocale(key, values);
+        }
+
+        if (data) {
+            // moment.duration._locale = moment._locale = data;
+            globalLocale = data;
+        } else {
+            if (typeof console !== 'undefined' && console.warn) {
+                //warn user if arguments are passed but the locale could not be set
+                console.warn(
+                    'Locale ' + key + ' not found. Did you forget to load it?'
+                );
+            }
+        }
+    }
+
+    return globalLocale._abbr;
+}
+
+function defineLocale(name, config) {
+    if (config !== null) {
+        var locale,
+            parentConfig = baseConfig;
+        config.abbr = name;
+        if (locales[name] != null) {
+            deprecateSimple(
+                'defineLocaleOverride',
+                'use moment.updateLocale(localeName, config) to change ' +
+                    'an existing locale. moment.defineLocale(localeName, ' +
+                    'config) should only be used for creating a new locale ' +
+                    'See http://momentjs.com/guides/#/warnings/define-locale/ for more info.'
+            );
+            parentConfig = locales[name]._config;
+        } else if (config.parentLocale != null) {
+            if (locales[config.parentLocale] != null) {
+                parentConfig = locales[config.parentLocale]._config;
+            } else {
+                locale = loadLocale(config.parentLocale);
+                if (locale != null) {
+                    parentConfig = locale._config;
+                } else {
+                    if (!localeFamilies[config.parentLocale]) {
+                        localeFamilies[config.parentLocale] = [];
+                    }
+                    localeFamilies[config.parentLocale].push({
+                        name: name,
+                        config: config,
+                    });
+                    return null;
+                }
+            }
+        }
+        locales[name] = new Locale(mergeConfigs(parentConfig, config));
+
+        if (localeFamilies[name]) {
+            localeFamilies[name].forEach(function (x) {
+                defineLocale(x.name, x.config);
+            });
+        }
+
+        // backwards compat for now: also set the locale
+        // make sure we set the locale AFTER all child locales have been
+        // created, so we won't end up with the child locale set.
+        getSetGlobalLocale(name);
+
+        return locales[name];
+    } else {
+        // useful for testing
+        delete locales[name];
+        return null;
+    }
+}
+
+function updateLocale(name, config) {
+    if (config != null) {
+        var locale,
+            tmpLocale,
+            parentConfig = baseConfig;
+
+        if (locales[name] != null && locales[name].parentLocale != null) {
+            // Update existing child locale in-place to avoid memory-leaks
+            locales[name].set(mergeConfigs(locales[name]._config, config));
+        } else {
+            // MERGE
+            tmpLocale = loadLocale(name);
+            if (tmpLocale != null) {
+                parentConfig = tmpLocale._config;
+            }
+            config = mergeConfigs(parentConfig, config);
+            if (tmpLocale == null) {
+                // updateLocale is called for creating a new locale
+                // Set abbr so it will have a name (getters return
+                // undefined otherwise).
+                config.abbr = name;
+            }
+            locale = new Locale(config);
+            locale.parentLocale = locales[name];
+            locales[name] = locale;
+        }
+
+        // backwards compat for now: also set the locale
+        getSetGlobalLocale(name);
+    } else {
+        // pass null for config to unupdate, useful for tests
+        if (locales[name] != null) {
+            if (locales[name].parentLocale != null) {
+                locales[name] = locales[name].parentLocale;
+                if (name === getSetGlobalLocale()) {
+                    getSetGlobalLocale(name);
+                }
+            } else if (locales[name] != null) {
+                delete locales[name];
+            }
+        }
+    }
+    return locales[name];
+}
+
+// returns locale data
+function getLocale(key) {
+    var locale;
+
+    if (key && key._locale && key._locale._abbr) {
+        key = key._locale._abbr;
+    }
+
+    if (!key) {
+        return globalLocale;
+    }
+
+    if (!isArray(key)) {
+        //short-circuit everything else
+        locale = loadLocale(key);
+        if (locale) {
+            return locale;
+        }
+        key = [key];
+    }
+
+    return chooseLocale(key);
+}
+
+function listLocales() {
+    return keys(locales);
+}
+
+function checkOverflow(m) {
+    var overflow,
+        a = m._a;
+
+    if (a && getParsingFlags(m).overflow === -2) {
+        overflow =
+            a[MONTH] < 0 || a[MONTH] > 11
+                ? MONTH
+                : a[DATE] < 1 || a[DATE] > daysInMonth(a[YEAR], a[MONTH])
+                  ? DATE
+                  : a[HOUR] < 0 ||
+                      a[HOUR] > 24 ||
+                      (a[HOUR] === 24 &&
+                          (a[MINUTE] !== 0 ||
+                              a[SECOND] !== 0 ||
+                              a[MILLISECOND] !== 0))
+                    ? HOUR
+                    : a[MINUTE] < 0 || a[MINUTE] > 59
+                      ? MINUTE
+                      : a[SECOND] < 0 || a[SECOND] > 59
+                        ? SECOND
+                        : a[MILLISECOND] < 0 || a[MILLISECOND] > 999
+                          ? MILLISECOND
+                          : -1;
+
+        if (
+            getParsingFlags(m)._overflowDayOfYear &&
+            (overflow < YEAR || overflow > DATE)
+        ) {
+            overflow = DATE;
+        }
+        if (getParsingFlags(m)._overflowWeeks && overflow === -1) {
+            overflow = WEEK;
+        }
+        if (getParsingFlags(m)._overflowWeekday && overflow === -1) {
+            overflow = WEEKDAY;
+        }
+
+        getParsingFlags(m).overflow = overflow;
+    }
+
+    return m;
+}
+
+// iso 8601 regex
+// 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
+var extendedIsoRegex =
+        /^\s*((?:[+-]\d{6}|\d{4})-(?:\d\d-\d\d|W\d\d-\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?::\d\d(?::\d\d(?:[.,]\d+)?)?)?)([+-]\d\d(?::?\d\d)?|\s*Z)?)?$/,
+    basicIsoRegex =
+        /^\s*((?:[+-]\d{6}|\d{4})(?:\d\d\d\d|W\d\d\d|W\d\d|\d\d\d|\d\d|))(?:(T| )(\d\d(?:\d\d(?:\d\d(?:[.,]\d+)?)?)?)([+-]\d\d(?::?\d\d)?|\s*Z)?)?$/,
+    tzRegex = /Z|[+-]\d\d(?::?\d\d)?/,
+    isoDates = [
+        ['YYYYYY-MM-DD', /[+-]\d{6}-\d\d-\d\d/],
+        ['YYYY-MM-DD', /\d{4}-\d\d-\d\d/],
+        ['GGGG-[W]WW-E', /\d{4}-W\d\d-\d/],
+        ['GGGG-[W]WW', /\d{4}-W\d\d/, false],
+        ['YYYY-DDD', /\d{4}-\d{3}/],
+        ['YYYY-MM', /\d{4}-\d\d/, false],
+        ['YYYYYYMMDD', /[+-]\d{10}/],
+        ['YYYYMMDD', /\d{8}/],
+        ['GGGG[W]WWE', /\d{4}W\d{3}/],
+        ['GGGG[W]WW', /\d{4}W\d{2}/, false],
+        ['YYYYDDD', /\d{7}/],
+        ['YYYYMM', /\d{6}/, false],
+        ['YYYY', /\d{4}/, false],
+    ],
+    // iso time formats and regexes
+    isoTimes = [
+        ['HH:mm:ss.SSSS', /\d\d:\d\d:\d\d\.\d+/],
+        ['HH:mm:ss,SSSS', /\d\d:\d\d:\d\d,\d+/],
+        ['HH:mm:ss', /\d\d:\d\d:\d\d/],
+        ['HH:mm', /\d\d:\d\d/],
+        ['HHmmss.SSSS', /\d\d\d\d\d\d\.\d+/],
+        ['HHmmss,SSSS', /\d\d\d\d\d\d,\d+/],
+        ['HHmmss', /\d\d\d\d\d\d/],
+        ['HHmm', /\d\d\d\d/],
+        ['HH', /\d\d/],
+    ],
+    aspNetJsonRegex = /^\/?Date\((-?\d+)/i,
+    // RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3
+    rfc2822 =
+        /^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\s)?(\d{1,2})\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s(\d{2,4})\s(\d\d):(\d\d)(?::(\d\d))?\s(?:(UT|GMT|[ECMP][SD]T)|([Zz])|([+-]\d{4}))$/,
+    obsOffsets = {
+        UT: 0,
+        GMT: 0,
+        EDT: -4 * 60,
+        EST: -5 * 60,
+        CDT: -5 * 60,
+        CST: -6 * 60,
+        MDT: -6 * 60,
+        MST: -7 * 60,
+        PDT: -7 * 60,
+        PST: -8 * 60,
+    };
+
+// date from iso format
+function configFromISO(config) {
+    var i,
+        l,
+        string = config._i,
+        match = extendedIsoRegex.exec(string) || basicIsoRegex.exec(string),
+        allowTime,
+        dateFormat,
+        timeFormat,
+        tzFormat,
+        isoDatesLen = isoDates.length,
+        isoTimesLen = isoTimes.length;
+
+    if (match) {
+        getParsingFlags(config).iso = true;
+        for (i = 0, l = isoDatesLen; i < l; i++) {
+            if (isoDates[i][1].exec(match[1])) {
+                dateFormat = isoDates[i][0];
+                allowTime = isoDates[i][2] !== false;
+                break;
+            }
+        }
+        if (dateFormat == null) {
+            config._isValid = false;
+            return;
+        }
+        if (match[3]) {
+            for (i = 0, l = isoTimesLen; i < l; i++) {
+                if (isoTimes[i][1].exec(match[3])) {
+                    // match[2] should be 'T' or space
+                    timeFormat = (match[2] || ' ') + isoTimes[i][0];
+                    break;
+                }
+            }
+            if (timeFormat == null) {
+                config._isValid = false;
+                return;
+            }
+        }
+        if (!allowTime && timeFormat != null) {
+            config._isValid = false;
+            return;
+        }
+        if (match[4]) {
+            if (tzRegex.exec(match[4])) {
+                tzFormat = 'Z';
+            } else {
+                config._isValid = false;
+                return;
+            }
+        }
+        config._f = dateFormat + (timeFormat || '') + (tzFormat || '');
+        configFromStringAndFormat(config);
+    } else {
+        config._isValid = false;
+    }
+}
+
+function extractFromRFC2822Strings(
+    yearStr,
+    monthStr,
+    dayStr,
+    hourStr,
+    minuteStr,
+    secondStr
+) {
+    var result = [
+        untruncateYear(yearStr),
+        defaultLocaleMonthsShort.indexOf(monthStr),
+        parseInt(dayStr, 10),
+        parseInt(hourStr, 10),
+        parseInt(minuteStr, 10),
+    ];
+
+    if (secondStr) {
+        result.push(parseInt(secondStr, 10));
+    }
+
+    return result;
+}
+
+function untruncateYear(yearStr) {
+    var year = parseInt(yearStr, 10);
+    if (year <= 49) {
+        return 2000 + year;
+    } else if (year <= 999) {
+        return 1900 + year;
+    }
+    return year;
+}
+
+function preprocessRFC2822(s) {
+    // Remove comments and folding whitespace and replace multiple-spaces with a single space
+    return s
+        .replace(/\([^()]*\)|[\n\t]/g, ' ')
+        .replace(/(\s\s+)/g, ' ')
+        .replace(/^\s\s*/, '')
+        .replace(/\s\s*$/, '');
+}
+
+function checkWeekday(weekdayStr, parsedInput, config) {
+    if (weekdayStr) {
+        // TODO: Replace the vanilla JS Date object with an independent day-of-week check.
+        var weekdayProvided = defaultLocaleWeekdaysShort.indexOf(weekdayStr),
+            weekdayActual = new Date(
+                parsedInput[0],
+                parsedInput[1],
+                parsedInput[2]
+            ).getDay();
+        if (weekdayProvided !== weekdayActual) {
+            getParsingFlags(config).weekdayMismatch = true;
+            config._isValid = false;
+            return false;
+        }
+    }
+    return true;
+}
+
+function calculateOffset(obsOffset, militaryOffset, numOffset) {
+    if (obsOffset) {
+        return obsOffsets[obsOffset];
+    } else if (militaryOffset) {
+        // the only allowed military tz is Z
+        return 0;
+    } else {
+        var hm = parseInt(numOffset, 10),
+            m = hm % 100,
+            h = (hm - m) / 100;
+        return h * 60 + m;
+    }
+}
+
+// date and time from ref 2822 format
+function configFromRFC2822(config) {
+    var match = rfc2822.exec(preprocessRFC2822(config._i)),
+        parsedArray;
+    if (match) {
+        parsedArray = extractFromRFC2822Strings(
+            match[4],
+            match[3],
+            match[2],
+            match[5],
+            match[6],
+            match[7]
+        );
+        if (!checkWeekday(match[1], parsedArray, config)) {
+            return;
+        }
+
+        config._a = parsedArray;
+        config._tzm = calculateOffset(match[8], match[9], match[10]);
+
+        config._d = createUTCDate.apply(null, config._a);
+        config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
+
+        getParsingFlags(config).rfc2822 = true;
+    } else {
+        config._isValid = false;
+    }
+}
+
+// date from 1) ASP.NET, 2) ISO, 3) RFC 2822 formats, or 4) optional fallback if parsing isn't strict
+function configFromString(config) {
+    var matched = aspNetJsonRegex.exec(config._i);
+    if (matched !== null) {
+        config._d = new Date(+matched[1]);
+        return;
+    }
+
+    configFromISO(config);
+    if (config._isValid === false) {
+        delete config._isValid;
+    } else {
+        return;
+    }
+
+    configFromRFC2822(config);
+    if (config._isValid === false) {
+        delete config._isValid;
+    } else {
+        return;
+    }
+
+    if (config._strict) {
+        config._isValid = false;
+    } else {
+        // Final attempt, use Input Fallback
+        hooks.createFromInputFallback(config);
+    }
+}
+
+hooks.createFromInputFallback = deprecate(
+    'value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' +
+        'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' +
+        'discouraged. Please refer to http://momentjs.com/guides/#/warnings/js-date/ for more info.',
+    function (config) {
+        config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));
+    }
+);
+
+// Pick the first defined of two or three arguments.
+function defaults(a, b, c) {
+    if (a != null) {
+        return a;
+    }
+    if (b != null) {
+        return b;
+    }
+    return c;
+}
+
+function currentDateArray(config) {
+    // hooks is actually the exported moment object
+    var nowValue = new Date(hooks.now());
+    if (config._useUTC) {
+        return [
+            nowValue.getUTCFullYear(),
+            nowValue.getUTCMonth(),
+            nowValue.getUTCDate(),
+        ];
+    }
+    return [nowValue.getFullYear(), nowValue.getMonth(), nowValue.getDate()];
+}
+
+// convert an array to a date.
+// the array should mirror the parameters below
+// note: all values past the year are optional and will default to the lowest possible value.
+// [year, month, day , hour, minute, second, millisecond]
+function configFromArray(config) {
+    var i,
+        date,
+        input = [],
+        currentDate,
+        expectedWeekday,
+        yearToUse;
+
+    if (config._d) {
+        return;
+    }
+
+    currentDate = currentDateArray(config);
+
+    //compute day of the year from weeks and weekdays
+    if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {
+        dayOfYearFromWeekInfo(config);
+    }
+
+    //if the day of the year is set, figure out what it is
+    if (config._dayOfYear != null) {
+        yearToUse = defaults(config._a[YEAR], currentDate[YEAR]);
+
+        if (
+            config._dayOfYear > daysInYear(yearToUse) ||
+            config._dayOfYear === 0
+        ) {
+            getParsingFlags(config)._overflowDayOfYear = true;
+        }
+
+        date = createUTCDate(yearToUse, 0, config._dayOfYear);
+        config._a[MONTH] = date.getUTCMonth();
+        config._a[DATE] = date.getUTCDate();
+    }
+
+    // Default to current date.
+    // * if no year, month, day of month are given, default to today
+    // * if day of month is given, default month and year
+    // * if month is given, default only year
+    // * if year is given, don't default anything
+    for (i = 0; i < 3 && config._a[i] == null; ++i) {
+        config._a[i] = input[i] = currentDate[i];
+    }
+
+    // Zero out whatever was not defaulted, including time
+    for (; i < 7; i++) {
+        config._a[i] = input[i] =
+            config._a[i] == null ? (i === 2 ? 1 : 0) : config._a[i];
+    }
+
+    // Check for 24:00:00.000
+    if (
+        config._a[HOUR] === 24 &&
+        config._a[MINUTE] === 0 &&
+        config._a[SECOND] === 0 &&
+        config._a[MILLISECOND] === 0
+    ) {
+        config._nextDay = true;
+        config._a[HOUR] = 0;
+    }
+
+    config._d = (config._useUTC ? createUTCDate : createDate).apply(
+        null,
+        input
+    );
+    expectedWeekday = config._useUTC
+        ? config._d.getUTCDay()
+        : config._d.getDay();
+
+    // Apply timezone offset from input. The actual utcOffset can be changed
+    // with parseZone.
+    if (config._tzm != null) {
+        config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
+    }
+
+    if (config._nextDay) {
+        config._a[HOUR] = 24;
+    }
+
+    // check for mismatching day of week
+    if (
+        config._w &&
+        typeof config._w.d !== 'undefined' &&
+        config._w.d !== expectedWeekday
+    ) {
+        getParsingFlags(config).weekdayMismatch = true;
+    }
+}
+
+function dayOfYearFromWeekInfo(config) {
+    var w, weekYear, week, weekday, dow, doy, temp, weekdayOverflow, curWeek;
+
+    w = config._w;
+    if (w.GG != null || w.W != null || w.E != null) {
+        dow = 1;
+        doy = 4;
+
+        // TODO: We need to take the current isoWeekYear, but that depends on
+        // how we interpret now (local, utc, fixed offset). So create
+        // a now version of current config (take local/utc/offset flags, and
+        // create now).
+        weekYear = defaults(
+            w.GG,
+            config._a[YEAR],
+            weekOfYear(createLocal(), 1, 4).year
+        );
+        week = defaults(w.W, 1);
+        weekday = defaults(w.E, 1);
+        if (weekday < 1 || weekday > 7) {
+            weekdayOverflow = true;
+        }
+    } else {
+        dow = config._locale._week.dow;
+        doy = config._locale._week.doy;
+
+        curWeek = weekOfYear(createLocal(), dow, doy);
+
+        weekYear = defaults(w.gg, config._a[YEAR], curWeek.year);
+
+        // Default to current week.
+        week = defaults(w.w, curWeek.week);
+
+        if (w.d != null) {
+            // weekday -- low day numbers are considered next week
+            weekday = w.d;
+            if (weekday < 0 || weekday > 6) {
+                weekdayOverflow = true;
+            }
+        } else if (w.e != null) {
+            // local weekday -- counting starts from beginning of week
+            weekday = w.e + dow;
+            if (w.e < 0 || w.e > 6) {
+                weekdayOverflow = true;
+            }
+        } else {
+            // default to beginning of week
+            weekday = dow;
+        }
+    }
+    if (week < 1 || week > weeksInYear(weekYear, dow, doy)) {
+        getParsingFlags(config)._overflowWeeks = true;
+    } else if (weekdayOverflow != null) {
+        getParsingFlags(config)._overflowWeekday = true;
+    } else {
+        temp = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy);
+        config._a[YEAR] = temp.year;
+        config._dayOfYear = temp.dayOfYear;
+    }
+}
+
+// constant that refers to the ISO standard
+hooks.ISO_8601 = function () {};
+
+// constant that refers to the RFC 2822 form
+hooks.RFC_2822 = function () {};
+
+// date from string and format string
+function configFromStringAndFormat(config) {
+    // TODO: Move this to another part of the creation flow to prevent circular deps
+    if (config._f === hooks.ISO_8601) {
+        configFromISO(config);
+        return;
+    }
+    if (config._f === hooks.RFC_2822) {
+        configFromRFC2822(config);
+        return;
+    }
+    config._a = [];
+    getParsingFlags(config).empty = true;
+
+    // This array is used to make a Date, either with `new Date` or `Date.UTC`
+    var string = '' + config._i,
+        i,
+        parsedInput,
+        tokens,
+        token,
+        skipped,
+        stringLength = string.length,
+        totalParsedInputLength = 0,
+        era,
+        tokenLen;
+
+    tokens =
+        expandFormat(config._f, config._locale).match(formattingTokens) || [];
+    tokenLen = tokens.length;
+    for (i = 0; i < tokenLen; i++) {
+        token = tokens[i];
+        parsedInput = (string.match(getParseRegexForToken(token, config)) ||
+            [])[0];
+        if (parsedInput) {
+            skipped = string.substr(0, string.indexOf(parsedInput));
+            if (skipped.length > 0) {
+                getParsingFlags(config).unusedInput.push(skipped);
+            }
+            string = string.slice(
+                string.indexOf(parsedInput) + parsedInput.length
+            );
+            totalParsedInputLength += parsedInput.length;
+        }
+        // don't parse if it's not a known token
+        if (formatTokenFunctions[token]) {
+            if (parsedInput) {
+                getParsingFlags(config).empty = false;
+            } else {
+                getParsingFlags(config).unusedTokens.push(token);
+            }
+            addTimeToArrayFromToken(token, parsedInput, config);
+        } else if (config._strict && !parsedInput) {
+            getParsingFlags(config).unusedTokens.push(token);
+        }
+    }
+
+    // add remaining unparsed input length to the string
+    getParsingFlags(config).charsLeftOver =
+        stringLength - totalParsedInputLength;
+    if (string.length > 0) {
+        getParsingFlags(config).unusedInput.push(string);
+    }
+
+    // clear _12h flag if hour is <= 12
+    if (
+        config._a[HOUR] <= 12 &&
+        getParsingFlags(config).bigHour === true &&
+        config._a[HOUR] > 0
+    ) {
+        getParsingFlags(config).bigHour = undefined;
+    }
+
+    getParsingFlags(config).parsedDateParts = config._a.slice(0);
+    getParsingFlags(config).meridiem = config._meridiem;
+    // handle meridiem
+    config._a[HOUR] = meridiemFixWrap(
+        config._locale,
+        config._a[HOUR],
+        config._meridiem
+    );
+
+    // handle era
+    era = getParsingFlags(config).era;
+    if (era !== null) {
+        config._a[YEAR] = config._locale.erasConvertYear(era, config._a[YEAR]);
+    }
+
+    configFromArray(config);
+    checkOverflow(config);
+}
+
+function meridiemFixWrap(locale, hour, meridiem) {
+    var isPm;
+
+    if (meridiem == null) {
+        // nothing to do
+        return hour;
+    }
+    if (locale.meridiemHour != null) {
+        return locale.meridiemHour(hour, meridiem);
+    } else if (locale.isPM != null) {
+        // Fallback
+        isPm = locale.isPM(meridiem);
+        if (isPm && hour < 12) {
+            hour += 12;
+        }
+        if (!isPm && hour === 12) {
+            hour = 0;
+        }
+        return hour;
+    } else {
+        // this is not supposed to happen
+        return hour;
+    }
+}
+
+// date from string and array of format strings
+function configFromStringAndArray(config) {
+    var tempConfig,
+        bestMoment,
+        scoreToBeat,
+        i,
+        currentScore,
+        validFormatFound,
+        bestFormatIsValid = false,
+        configfLen = config._f.length;
+
+    if (configfLen === 0) {
+        getParsingFlags(config).invalidFormat = true;
+        config._d = new Date(NaN);
+        return;
+    }
+
+    for (i = 0; i < configfLen; i++) {
+        currentScore = 0;
+        validFormatFound = false;
+        tempConfig = copyConfig({}, config);
+        if (config._useUTC != null) {
+            tempConfig._useUTC = config._useUTC;
+        }
+        tempConfig._f = config._f[i];
+        configFromStringAndFormat(tempConfig);
+
+        if (isValid(tempConfig)) {
+            validFormatFound = true;
+        }
+
+        // if there is any input that was not parsed add a penalty for that format
+        currentScore += getParsingFlags(tempConfig).charsLeftOver;
+
+        //or tokens
+        currentScore += getParsingFlags(tempConfig).unusedTokens.length * 10;
+
+        getParsingFlags(tempConfig).score = currentScore;
+
+        if (!bestFormatIsValid) {
+            if (
+                scoreToBeat == null ||
+                currentScore < scoreToBeat ||
+                validFormatFound
+            ) {
+                scoreToBeat = currentScore;
+                bestMoment = tempConfig;
+                if (validFormatFound) {
+                    bestFormatIsValid = true;
+                }
+            }
+        } else {
+            if (currentScore < scoreToBeat) {
+                scoreToBeat = currentScore;
+                bestMoment = tempConfig;
+            }
+        }
+    }
+
+    extend(config, bestMoment || tempConfig);
+}
+
+function configFromObject(config) {
+    if (config._d) {
+        return;
+    }
+
+    var i = normalizeObjectUnits(config._i),
+        dayOrDate = i.day === undefined ? i.date : i.day;
+    config._a = map(
+        [i.year, i.month, dayOrDate, i.hour, i.minute, i.second, i.millisecond],
+        function (obj) {
+            return obj && parseInt(obj, 10);
+        }
+    );
+
+    configFromArray(config);
+}
+
+function createFromConfig(config) {
+    var res = new Moment(checkOverflow(prepareConfig(config)));
+    if (res._nextDay) {
+        // Adding is smart enough around DST
+        res.add(1, 'd');
+        res._nextDay = undefined;
+    }
+
+    return res;
+}
+
+function prepareConfig(config) {
+    var input = config._i,
+        format = config._f;
+
+    config._locale = config._locale || getLocale(config._l);
+
+    if (input === null || (format === undefined && input === '')) {
+        return createInvalid({ nullInput: true });
+    }
+
+    if (typeof input === 'string') {
+        config._i = input = config._locale.preparse(input);
+    }
+
+    if (isMoment(input)) {
+        return new Moment(checkOverflow(input));
+    } else if (isDate(input)) {
+        config._d = input;
+    } else if (isArray(format)) {
+        configFromStringAndArray(config);
+    } else if (format) {
+        configFromStringAndFormat(config);
+    } else {
+        configFromInput(config);
+    }
+
+    if (!isValid(config)) {
+        config._d = null;
+    }
+
+    return config;
+}
+
+function configFromInput(config) {
+    var input = config._i;
+    if (isUndefined(input)) {
+        config._d = new Date(hooks.now());
+    } else if (isDate(input)) {
+        config._d = new Date(input.valueOf());
+    } else if (typeof input === 'string') {
+        configFromString(config);
+    } else if (isArray(input)) {
+        config._a = map(input.slice(0), function (obj) {
+            return parseInt(obj, 10);
+        });
+        configFromArray(config);
+    } else if (isObject(input)) {
+        configFromObject(config);
+    } else if (isNumber(input)) {
+        // from milliseconds
+        config._d = new Date(input);
+    } else {
+        hooks.createFromInputFallback(config);
+    }
+}
+
+function createLocalOrUTC(input, format, locale, strict, isUTC) {
+    var c = {};
+
+    if (format === true || format === false) {
+        strict = format;
+        format = undefined;
+    }
+
+    if (locale === true || locale === false) {
+        strict = locale;
+        locale = undefined;
+    }
+
+    if (
+        (isObject(input) && isObjectEmpty(input)) ||
+        (isArray(input) && input.length === 0)
+    ) {
+        input = undefined;
+    }
+    // object construction must be done this way.
+    // https://github.com/moment/moment/issues/1423
+    c._isAMomentObject = true;
+    c._useUTC = c._isUTC = isUTC;
+    c._l = locale;
+    c._i = input;
+    c._f = format;
+    c._strict = strict;
+
+    return createFromConfig(c);
+}
+
+function createLocal(input, format, locale, strict) {
+    return createLocalOrUTC(input, format, locale, strict, false);
+}
+
+var prototypeMin = deprecate(
+        'moment().min is deprecated, use moment.max instead. http://momentjs.com/guides/#/warnings/min-max/',
+        function () {
+            var other = createLocal.apply(null, arguments);
+            if (this.isValid() && other.isValid()) {
+                return other < this ? this : other;
+            } else {
+                return createInvalid();
+            }
+        }
+    ),
+    prototypeMax = deprecate(
+        'moment().max is deprecated, use moment.min instead. http://momentjs.com/guides/#/warnings/min-max/',
+        function () {
+            var other = createLocal.apply(null, arguments);
+            if (this.isValid() && other.isValid()) {
+                return other > this ? this : other;
+            } else {
+                return createInvalid();
+            }
+        }
+    );
+
+// Pick a moment m from moments so that m[fn](other) is true for all
+// other. This relies on the function fn to be transitive.
+//
+// moments should either be an array of moment objects or an array, whose
+// first element is an array of moment objects.
+function pickBy(fn, moments) {
+    var res, i;
+    if (moments.length === 1 && isArray(moments[0])) {
+        moments = moments[0];
+    }
+    if (!moments.length) {
+        return createLocal();
+    }
+    res = moments[0];
+    for (i = 1; i < moments.length; ++i) {
+        if (!moments[i].isValid() || moments[i][fn](res)) {
+            res = moments[i];
+        }
+    }
+    return res;
+}
+
+// TODO: Use [].sort instead?
+function min() {
+    var args = [].slice.call(arguments, 0);
+
+    return pickBy('isBefore', args);
+}
+
+function max() {
+    var args = [].slice.call(arguments, 0);
+
+    return pickBy('isAfter', args);
+}
+
+var now = function () {
+    return Date.now ? Date.now() : +new Date();
+};
+
+var ordering = [
+    'year',
+    'quarter',
+    'month',
+    'week',
+    'day',
+    'hour',
+    'minute',
+    'second',
+    'millisecond',
+];
+
+function isDurationValid(m) {
+    var key,
+        unitHasDecimal = false,
+        i,
+        orderLen = ordering.length;
+    for (key in m) {
+        if (
+            hasOwnProp(m, key) &&
+            !(
+                indexOf.call(ordering, key) !== -1 &&
+                (m[key] == null || !isNaN(m[key]))
+            )
+        ) {
+            return false;
+        }
+    }
+
+    for (i = 0; i < orderLen; ++i) {
+        if (m[ordering[i]]) {
+            if (unitHasDecimal) {
+                return false; // only allow non-integers for smallest unit
+            }
+            if (parseFloat(m[ordering[i]]) !== toInt(m[ordering[i]])) {
+                unitHasDecimal = true;
+            }
+        }
+    }
+
+    return true;
+}
+
+function isValid$1() {
+    return this._isValid;
+}
+
+function createInvalid$1() {
+    return createDuration(NaN);
+}
+
+function Duration(duration) {
+    var normalizedInput = normalizeObjectUnits(duration),
+        years = normalizedInput.year || 0,
+        quarters = normalizedInput.quarter || 0,
+        months = normalizedInput.month || 0,
+        weeks = normalizedInput.week || normalizedInput.isoWeek || 0,
+        days = normalizedInput.day || 0,
+        hours = normalizedInput.hour || 0,
+        minutes = normalizedInput.minute || 0,
+        seconds = normalizedInput.second || 0,
+        milliseconds = normalizedInput.millisecond || 0;
+
+    this._isValid = isDurationValid(normalizedInput);
+
+    // representation for dateAddRemove
+    this._milliseconds =
+        +milliseconds +
+        seconds * 1e3 + // 1000
+        minutes * 6e4 + // 1000 * 60
+        hours * 1000 * 60 * 60; //using 1000 * 60 * 60 instead of 36e5 to avoid floating point rounding errors https://github.com/moment/moment/issues/2978
+    // Because of dateAddRemove treats 24 hours as different from a
+    // day when working around DST, we need to store them separately
+    this._days = +days + weeks * 7;
+    // It is impossible to translate months into days without knowing
+    // which months you are are talking about, so we have to store
+    // it separately.
+    this._months = +months + quarters * 3 + years * 12;
+
+    this._data = {};
+
+    this._locale = getLocale();
+
+    this._bubble();
+}
+
+function isDuration(obj) {
+    return obj instanceof Duration;
+}
+
+function absRound(number) {
+    if (number < 0) {
+        return Math.round(-1 * number) * -1;
+    } else {
+        return Math.round(number);
+    }
+}
+
+// compare two arrays, return the number of differences
+function compareArrays(array1, array2, dontConvert) {
+    var len = Math.min(array1.length, array2.length),
+        lengthDiff = Math.abs(array1.length - array2.length),
+        diffs = 0,
+        i;
+    for (i = 0; i < len; i++) {
+        if (
+            (dontConvert && array1[i] !== array2[i]) ||
+            (!dontConvert && toInt(array1[i]) !== toInt(array2[i]))
+        ) {
+            diffs++;
+        }
+    }
+    return diffs + lengthDiff;
+}
+
+// FORMATTING
+
+function offset(token, separator) {
+    addFormatToken(token, 0, 0, function () {
+        var offset = this.utcOffset(),
+            sign = '+';
+        if (offset < 0) {
+            offset = -offset;
+            sign = '-';
+        }
+        return (
+            sign +
+            zeroFill(~~(offset / 60), 2) +
+            separator +
+            zeroFill(~~offset % 60, 2)
+        );
+    });
+}
+
+offset('Z', ':');
+offset('ZZ', '');
+
+// PARSING
+
+addRegexToken('Z', matchShortOffset);
+addRegexToken('ZZ', matchShortOffset);
+addParseToken(['Z', 'ZZ'], function (input, array, config) {
+    config._useUTC = true;
+    config._tzm = offsetFromString(matchShortOffset, input);
+});
+
+// HELPERS
+
+// timezone chunker
+// '+10:00' > ['10',  '00']
+// '-1530'  > ['-15', '30']
+var chunkOffset = /([\+\-]|\d\d)/gi;
+
+function offsetFromString(matcher, string) {
+    var matches = (string || '').match(matcher),
+        chunk,
+        parts,
+        minutes;
+
+    if (matches === null) {
+        return null;
+    }
+
+    chunk = matches[matches.length - 1] || [];
+    parts = (chunk + '').match(chunkOffset) || ['-', 0, 0];
+    minutes = +(parts[1] * 60) + toInt(parts[2]);
+
+    return minutes === 0 ? 0 : parts[0] === '+' ? minutes : -minutes;
+}
+
+// Return a moment from input, that is local/utc/zone equivalent to model.
+function cloneWithOffset(input, model) {
+    var res, diff;
+    if (model._isUTC) {
+        res = model.clone();
+        diff =
+            (isMoment(input) || isDate(input)
+                ? input.valueOf()
+                : createLocal(input).valueOf()) - res.valueOf();
+        // Use low-level api, because this fn is low-level api.
+        res._d.setTime(res._d.valueOf() + diff);
+        hooks.updateOffset(res, false);
+        return res;
+    } else {
+        return createLocal(input).local();
+    }
+}
+
+function getDateOffset(m) {
+    // On Firefox.24 Date#getTimezoneOffset returns a floating point.
+    // https://github.com/moment/moment/pull/1871
+    return -Math.round(m._d.getTimezoneOffset());
+}
+
+// HOOKS
+
+// This function will be called whenever a moment is mutated.
+// It is intended to keep the offset in sync with the timezone.
+hooks.updateOffset = function () {};
+
+// MOMENTS
+
+// keepLocalTime = true means only change the timezone, without
+// affecting the local hour. So 5:31:26 +0300 --[utcOffset(2, true)]-->
+// 5:31:26 +0200 It is possible that 5:31:26 doesn't exist with offset
+// +0200, so we adjust the time as needed, to be valid.
+//
+// Keeping the time actually adds/subtracts (one hour)
+// from the actual represented time. That is why we call updateOffset
+// a second time. In case it wants us to change the offset again
+// _changeInProgress == true case, then we have to adjust, because
+// there is no such time in the given timezone.
+function getSetOffset(input, keepLocalTime, keepMinutes) {
+    var offset = this._offset || 0,
+        localAdjust;
+    if (!this.isValid()) {
+        return input != null ? this : NaN;
+    }
+    if (input != null) {
+        if (typeof input === 'string') {
+            input = offsetFromString(matchShortOffset, input);
+            if (input === null) {
+                return this;
+            }
+        } else if (Math.abs(input) < 16 && !keepMinutes) {
+            input = input * 60;
+        }
+        if (!this._isUTC && keepLocalTime) {
+            localAdjust = getDateOffset(this);
+        }
+        this._offset = input;
+        this._isUTC = true;
+        if (localAdjust != null) {
+            this.add(localAdjust, 'm');
+        }
+        if (offset !== input) {
+            if (!keepLocalTime || this._changeInProgress) {
+                addSubtract(
+                    this,
+                    createDuration(input - offset, 'm'),
+                    1,
+                    false
+                );
+            } else if (!this._changeInProgress) {
+                this._changeInProgress = true;
+                hooks.updateOffset(this, true);
+                this._changeInProgress = null;
+            }
+        }
+        return this;
+    } else {
+        return this._isUTC ? offset : getDateOffset(this);
+    }
+}
+
+function getSetZone(input, keepLocalTime) {
+    if (input != null) {
+        if (typeof input !== 'string') {
+            input = -input;
+        }
+
+        this.utcOffset(input, keepLocalTime);
+
+        return this;
+    } else {
+        return -this.utcOffset();
+    }
+}
+
+function setOffsetToUTC(keepLocalTime) {
+    return this.utcOffset(0, keepLocalTime);
+}
+
+function setOffsetToLocal(keepLocalTime) {
+    if (this._isUTC) {
+        this.utcOffset(0, keepLocalTime);
+        this._isUTC = false;
+
+        if (keepLocalTime) {
+            this.subtract(getDateOffset(this), 'm');
+        }
+    }
+    return this;
+}
+
+function setOffsetToParsedOffset() {
+    if (this._tzm != null) {
+        this.utcOffset(this._tzm, false, true);
+    } else if (typeof this._i === 'string') {
+        var tZone = offsetFromString(matchOffset, this._i);
+        if (tZone != null) {
+            this.utcOffset(tZone);
+        } else {
+            this.utcOffset(0, true);
+        }
+    }
+    return this;
+}
+
+function hasAlignedHourOffset(input) {
+    if (!this.isValid()) {
+        return false;
+    }
+    input = input ? createLocal(input).utcOffset() : 0;
+
+    return (this.utcOffset() - input) % 60 === 0;
+}
+
+function isDaylightSavingTime() {
+    return (
+        this.utcOffset() > this.clone().month(0).utcOffset() ||
+        this.utcOffset() > this.clone().month(5).utcOffset()
+    );
+}
+
+function isDaylightSavingTimeShifted() {
+    if (!isUndefined(this._isDSTShifted)) {
+        return this._isDSTShifted;
+    }
+
+    var c = {},
+        other;
+
+    copyConfig(c, this);
+    c = prepareConfig(c);
+
+    if (c._a) {
+        other = c._isUTC ? createUTC(c._a) : createLocal(c._a);
+        this._isDSTShifted =
+            this.isValid() && compareArrays(c._a, other.toArray()) > 0;
+    } else {
+        this._isDSTShifted = false;
+    }
+
+    return this._isDSTShifted;
+}
+
+function isLocal() {
+    return this.isValid() ? !this._isUTC : false;
+}
+
+function isUtcOffset() {
+    return this.isValid() ? this._isUTC : false;
+}
+
+function isUtc() {
+    return this.isValid() ? this._isUTC && this._offset === 0 : false;
+}
+
+// ASP.NET json date format regex
+var aspNetRegex = /^(-|\+)?(?:(\d*)[. ])?(\d+):(\d+)(?::(\d+)(\.\d*)?)?$/,
+    // from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html
+    // somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere
+    // and further modified to allow for strings containing both week and day
+    isoRegex =
+        /^(-|\+)?P(?:([-+]?[0-9,.]*)Y)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)W)?(?:([-+]?[0-9,.]*)D)?(?:T(?:([-+]?[0-9,.]*)H)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)S)?)?$/;
+
+function createDuration(input, key) {
+    var duration = input,
+        // matching against regexp is expensive, do it on demand
+        match = null,
+        sign,
+        ret,
+        diffRes;
+
+    if (isDuration(input)) {
+        duration = {
+            ms: input._milliseconds,
+            d: input._days,
+            M: input._months,
+        };
+    } else if (isNumber(input) || !isNaN(+input)) {
+        duration = {};
+        if (key) {
+            duration[key] = +input;
+        } else {
+            duration.milliseconds = +input;
+        }
+    } else if ((match = aspNetRegex.exec(input))) {
+        sign = match[1] === '-' ? -1 : 1;
+        duration = {
+            y: 0,
+            d: toInt(match[DATE]) * sign,
+            h: toInt(match[HOUR]) * sign,
+            m: toInt(match[MINUTE]) * sign,
+            s: toInt(match[SECOND]) * sign,
+            ms: toInt(absRound(match[MILLISECOND] * 1000)) * sign, // the millisecond decimal point is included in the match
+        };
+    } else if ((match = isoRegex.exec(input))) {
+        sign = match[1] === '-' ? -1 : 1;
+        duration = {
+            y: parseIso(match[2], sign),
+            M: parseIso(match[3], sign),
+            w: parseIso(match[4], sign),
+            d: parseIso(match[5], sign),
+            h: parseIso(match[6], sign),
+            m: parseIso(match[7], sign),
+            s: parseIso(match[8], sign),
+        };
+    } else if (duration == null) {
+        // checks for null or undefined
+        duration = {};
+    } else if (
+        typeof duration === 'object' &&
+        ('from' in duration || 'to' in duration)
+    ) {
+        diffRes = momentsDifference(
+            createLocal(duration.from),
+            createLocal(duration.to)
+        );
+
+        duration = {};
+        duration.ms = diffRes.milliseconds;
+        duration.M = diffRes.months;
+    }
+
+    ret = new Duration(duration);
+
+    if (isDuration(input) && hasOwnProp(input, '_locale')) {
+        ret._locale = input._locale;
+    }
+
+    if (isDuration(input) && hasOwnProp(input, '_isValid')) {
+        ret._isValid = input._isValid;
+    }
+
+    return ret;
+}
+
+createDuration.fn = Duration.prototype;
+createDuration.invalid = createInvalid$1;
+
+function parseIso(inp, sign) {
+    // We'd normally use ~~inp for this, but unfortunately it also
+    // converts floats to ints.
+    // inp may be undefined, so careful calling replace on it.
+    var res = inp && parseFloat(inp.replace(',', '.'));
+    // apply sign while we're at it
+    return (isNaN(res) ? 0 : res) * sign;
+}
+
+function positiveMomentsDifference(base, other) {
+    var res = {};
+
+    res.months =
+        other.month() - base.month() + (other.year() - base.year()) * 12;
+    if (base.clone().add(res.months, 'M').isAfter(other)) {
+        --res.months;
+    }
+
+    res.milliseconds = +other - +base.clone().add(res.months, 'M');
+
+    return res;
+}
+
+function momentsDifference(base, other) {
+    var res;
+    if (!(base.isValid() && other.isValid())) {
+        return { milliseconds: 0, months: 0 };
+    }
+
+    other = cloneWithOffset(other, base);
+    if (base.isBefore(other)) {
+        res = positiveMomentsDifference(base, other);
+    } else {
+        res = positiveMomentsDifference(other, base);
+        res.milliseconds = -res.milliseconds;
+        res.months = -res.months;
+    }
+
+    return res;
+}
+
+// TODO: remove 'name' arg after deprecation is removed
+function createAdder(direction, name) {
+    return function (val, period) {
+        var dur, tmp;
+        //invert the arguments, but complain about it
+        if (period !== null && !isNaN(+period)) {
+            deprecateSimple(
+                name,
+                'moment().' +
+                    name +
+                    '(period, number) is deprecated. Please use moment().' +
+                    name +
+                    '(number, period). ' +
+                    'See http://momentjs.com/guides/#/warnings/add-inverted-param/ for more info.'
+            );
+            tmp = val;
+            val = period;
+            period = tmp;
+        }
+
+        dur = createDuration(val, period);
+        addSubtract(this, dur, direction);
+        return this;
+    };
+}
+
+function addSubtract(mom, duration, isAdding, updateOffset) {
+    var milliseconds = duration._milliseconds,
+        days = absRound(duration._days),
+        months = absRound(duration._months);
+
+    if (!mom.isValid()) {
+        // No op
+        return;
+    }
+
+    updateOffset = updateOffset == null ? true : updateOffset;
+
+    if (months) {
+        setMonth(mom, get(mom, 'Month') + months * isAdding);
+    }
+    if (days) {
+        set$1(mom, 'Date', get(mom, 'Date') + days * isAdding);
+    }
+    if (milliseconds) {
+        mom._d.setTime(mom._d.valueOf() + milliseconds * isAdding);
+    }
+    if (updateOffset) {
+        hooks.updateOffset(mom, days || months);
+    }
+}
+
+var add = createAdder(1, 'add'),
+    subtract = createAdder(-1, 'subtract');
+
+function isString(input) {
+    return typeof input === 'string' || input instanceof String;
+}
+
+// type MomentInput = Moment | Date | string | number | (number | string)[] | MomentInputObject | void; // null | undefined
+function isMomentInput(input) {
+    return (
+        isMoment(input) ||
+        isDate(input) ||
+        isString(input) ||
+        isNumber(input) ||
+        isNumberOrStringArray(input) ||
+        isMomentInputObject(input) ||
+        input === null ||
+        input === undefined
+    );
+}
+
+function isMomentInputObject(input) {
+    var objectTest = isObject(input) && !isObjectEmpty(input),
+        propertyTest = false,
+        properties = [
+            'years',
+            'year',
+            'y',
+            'months',
+            'month',
+            'M',
+            'days',
+            'day',
+            'd',
+            'dates',
+            'date',
+            'D',
+            'hours',
+            'hour',
+            'h',
+            'minutes',
+            'minute',
+            'm',
+            'seconds',
+            'second',
+            's',
+            'milliseconds',
+            'millisecond',
+            'ms',
+        ],
+        i,
+        property,
+        propertyLen = properties.length;
+
+    for (i = 0; i < propertyLen; i += 1) {
+        property = properties[i];
+        propertyTest = propertyTest || hasOwnProp(input, property);
+    }
+
+    return objectTest && propertyTest;
+}
+
+function isNumberOrStringArray(input) {
+    var arrayTest = isArray(input),
+        dataTypeTest = false;
+    if (arrayTest) {
+        dataTypeTest =
+            input.filter(function (item) {
+                return !isNumber(item) && isString(input);
+            }).length === 0;
+    }
+    return arrayTest && dataTypeTest;
+}
+
+function isCalendarSpec(input) {
+    var objectTest = isObject(input) && !isObjectEmpty(input),
+        propertyTest = false,
+        properties = [
+            'sameDay',
+            'nextDay',
+            'lastDay',
+            'nextWeek',
+            'lastWeek',
+            'sameElse',
+        ],
+        i,
+        property;
+
+    for (i = 0; i < properties.length; i += 1) {
+        property = properties[i];
+        propertyTest = propertyTest || hasOwnProp(input, property);
+    }
+
+    return objectTest && propertyTest;
+}
+
+function getCalendarFormat(myMoment, now) {
+    var diff = myMoment.diff(now, 'days', true);
+    return diff < -6
+        ? 'sameElse'
+        : diff < -1
+          ? 'lastWeek'
+          : diff < 0
+            ? 'lastDay'
+            : diff < 1
+              ? 'sameDay'
+              : diff < 2
+                ? 'nextDay'
+                : diff < 7
+                  ? 'nextWeek'
+                  : 'sameElse';
+}
+
+function calendar$1(time, formats) {
+    // Support for single parameter, formats only overload to the calendar function
+    if (arguments.length === 1) {
+        if (!arguments[0]) {
+            time = undefined;
+            formats = undefined;
+        } else if (isMomentInput(arguments[0])) {
+            time = arguments[0];
+            formats = undefined;
+        } else if (isCalendarSpec(arguments[0])) {
+            formats = arguments[0];
+            time = undefined;
+        }
+    }
+    // We want to compare the start of today, vs this.
+    // Getting start-of-today depends on whether we're local/utc/offset or not.
+    var now = time || createLocal(),
+        sod = cloneWithOffset(now, this).startOf('day'),
+        format = hooks.calendarFormat(this, sod) || 'sameElse',
+        output =
+            formats &&
+            (isFunction(formats[format])
+                ? formats[format].call(this, now)
+                : formats[format]);
+
+    return this.format(
+        output || this.localeData().calendar(format, this, createLocal(now))
+    );
+}
+
+function clone() {
+    return new Moment(this);
+}
+
+function isAfter(input, units) {
+    var localInput = isMoment(input) ? input : createLocal(input);
+    if (!(this.isValid() && localInput.isValid())) {
+        return false;
+    }
+    units = normalizeUnits(units) || 'millisecond';
+    if (units === 'millisecond') {
+        return this.valueOf() > localInput.valueOf();
+    } else {
+        return localInput.valueOf() < this.clone().startOf(units).valueOf();
+    }
+}
+
+function isBefore(input, units) {
+    var localInput = isMoment(input) ? input : createLocal(input);
+    if (!(this.isValid() && localInput.isValid())) {
+        return false;
+    }
+    units = normalizeUnits(units) || 'millisecond';
+    if (units === 'millisecond') {
+        return this.valueOf() < localInput.valueOf();
+    } else {
+        return this.clone().endOf(units).valueOf() < localInput.valueOf();
+    }
+}
+
+function isBetween(from, to, units, inclusivity) {
+    var localFrom = isMoment(from) ? from : createLocal(from),
+        localTo = isMoment(to) ? to : createLocal(to);
+    if (!(this.isValid() && localFrom.isValid() && localTo.isValid())) {
+        return false;
+    }
+    inclusivity = inclusivity || '()';
+    return (
+        (inclusivity[0] === '('
+            ? this.isAfter(localFrom, units)
+            : !this.isBefore(localFrom, units)) &&
+        (inclusivity[1] === ')'
+            ? this.isBefore(localTo, units)
+            : !this.isAfter(localTo, units))
+    );
+}
+
+function isSame(input, units) {
+    var localInput = isMoment(input) ? input : createLocal(input),
+        inputMs;
+    if (!(this.isValid() && localInput.isValid())) {
+        return false;
+    }
+    units = normalizeUnits(units) || 'millisecond';
+    if (units === 'millisecond') {
+        return this.valueOf() === localInput.valueOf();
+    } else {
+        inputMs = localInput.valueOf();
+        return (
+            this.clone().startOf(units).valueOf() <= inputMs &&
+            inputMs <= this.clone().endOf(units).valueOf()
+        );
+    }
+}
+
+function isSameOrAfter(input, units) {
+    return this.isSame(input, units) || this.isAfter(input, units);
+}
+
+function isSameOrBefore(input, units) {
+    return this.isSame(input, units) || this.isBefore(input, units);
+}
+
+function diff(input, units, asFloat) {
+    var that, zoneDelta, output;
+
+    if (!this.isValid()) {
+        return NaN;
+    }
+
+    that = cloneWithOffset(input, this);
+
+    if (!that.isValid()) {
+        return NaN;
+    }
+
+    zoneDelta = (that.utcOffset() - this.utcOffset()) * 6e4;
+
+    units = normalizeUnits(units);
+
+    switch (units) {
+        case 'year':
+            output = monthDiff(this, that) / 12;
+            break;
+        case 'month':
+            output = monthDiff(this, that);
+            break;
+        case 'quarter':
+            output = monthDiff(this, that) / 3;
+            break;
+        case 'second':
+            output = (this - that) / 1e3;
+            break; // 1000
+        case 'minute':
+            output = (this - that) / 6e4;
+            break; // 1000 * 60
+        case 'hour':
+            output = (this - that) / 36e5;
+            break; // 1000 * 60 * 60
+        case 'day':
+            output = (this - that - zoneDelta) / 864e5;
+            break; // 1000 * 60 * 60 * 24, negate dst
+        case 'week':
+            output = (this - that - zoneDelta) / 6048e5;
+            break; // 1000 * 60 * 60 * 24 * 7, negate dst
+        default:
+            output = this - that;
+    }
+
+    return asFloat ? output : absFloor(output);
+}
+
+function monthDiff(a, b) {
+    if (a.date() < b.date()) {
+        // end-of-month calculations work correct when the start month has more
+        // days than the end month.
+        return -monthDiff(b, a);
+    }
+    // difference in months
+    var wholeMonthDiff = (b.year() - a.year()) * 12 + (b.month() - a.month()),
+        // b is in (anchor - 1 month, anchor + 1 month)
+        anchor = a.clone().add(wholeMonthDiff, 'months'),
+        anchor2,
+        adjust;
+
+    if (b - anchor < 0) {
+        anchor2 = a.clone().add(wholeMonthDiff - 1, 'months');
+        // linear across the month
+        adjust = (b - anchor) / (anchor - anchor2);
+    } else {
+        anchor2 = a.clone().add(wholeMonthDiff + 1, 'months');
+        // linear across the month
+        adjust = (b - anchor) / (anchor2 - anchor);
+    }
+
+    //check for negative zero, return zero if negative zero
+    return -(wholeMonthDiff + adjust) || 0;
+}
+
+hooks.defaultFormat = 'YYYY-MM-DDTHH:mm:ssZ';
+hooks.defaultFormatUtc = 'YYYY-MM-DDTHH:mm:ss[Z]';
+
+function toString() {
+    return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ');
+}
+
+function toISOString(keepOffset) {
+    if (!this.isValid()) {
+        return null;
+    }
+    var utc = keepOffset !== true,
+        m = utc ? this.clone().utc() : this;
+    if (m.year() < 0 || m.year() > 9999) {
+        return formatMoment(
+            m,
+            utc
+                ? 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]'
+                : 'YYYYYY-MM-DD[T]HH:mm:ss.SSSZ'
+        );
+    }
+    if (isFunction(Date.prototype.toISOString)) {
+        // native implementation is ~50x faster, use it when we can
+        if (utc) {
+            return this.toDate().toISOString();
+        } else {
+            return new Date(this.valueOf() + this.utcOffset() * 60 * 1000)
+                .toISOString()
+                .replace('Z', formatMoment(m, 'Z'));
+        }
+    }
+    return formatMoment(
+        m,
+        utc ? 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYY-MM-DD[T]HH:mm:ss.SSSZ'
+    );
+}
+
+/**
+ * Return a human readable representation of a moment that can
+ * also be evaluated to get a new moment which is the same
+ *
+ * @link https://nodejs.org/dist/latest/docs/api/util.html#util_custom_inspect_function_on_objects
+ */
+function inspect() {
+    if (!this.isValid()) {
+        return 'moment.invalid(/* ' + this._i + ' */)';
+    }
+    var func = 'moment',
+        zone = '',
+        prefix,
+        year,
+        datetime,
+        suffix;
+    if (!this.isLocal()) {
+        func = this.utcOffset() === 0 ? 'moment.utc' : 'moment.parseZone';
+        zone = 'Z';
+    }
+    prefix = '[' + func + '("]';
+    year = 0 <= this.year() && this.year() <= 9999 ? 'YYYY' : 'YYYYYY';
+    datetime = '-MM-DD[T]HH:mm:ss.SSS';
+    suffix = zone + '[")]';
+
+    return this.format(prefix + year + datetime + suffix);
+}
+
+function format(inputString) {
+    if (!inputString) {
+        inputString = this.isUtc()
+            ? hooks.defaultFormatUtc
+            : hooks.defaultFormat;
+    }
+    var output = formatMoment(this, inputString);
+    return this.localeData().postformat(output);
+}
+
+function from(time, withoutSuffix) {
+    if (
+        this.isValid() &&
+        ((isMoment(time) && time.isValid()) || createLocal(time).isValid())
+    ) {
+        return createDuration({ to: this, from: time })
+            .locale(this.locale())
+            .humanize(!withoutSuffix);
+    } else {
+        return this.localeData().invalidDate();
+    }
+}
+
+function fromNow(withoutSuffix) {
+    return this.from(createLocal(), withoutSuffix);
+}
+
+function to(time, withoutSuffix) {
+    if (
+        this.isValid() &&
+        ((isMoment(time) && time.isValid()) || createLocal(time).isValid())
+    ) {
+        return createDuration({ from: this, to: time })
+            .locale(this.locale())
+            .humanize(!withoutSuffix);
+    } else {
+        return this.localeData().invalidDate();
+    }
+}
+
+function toNow(withoutSuffix) {
+    return this.to(createLocal(), withoutSuffix);
+}
+
+// If passed a locale key, it will set the locale for this
+// instance.  Otherwise, it will return the locale configuration
+// variables for this instance.
+function locale(key) {
+    var newLocaleData;
+
+    if (key === undefined) {
+        return this._locale._abbr;
+    } else {
+        newLocaleData = getLocale(key);
+        if (newLocaleData != null) {
+            this._locale = newLocaleData;
+        }
+        return this;
+    }
+}
+
+var lang = deprecate(
+    'moment().lang() is deprecated. Instead, use moment().localeData() to get the language configuration. Use moment().locale() to change languages.',
+    function (key) {
+        if (key === undefined) {
+            return this.localeData();
+        } else {
+            return this.locale(key);
+        }
+    }
+);
+
+function localeData() {
+    return this._locale;
+}
+
+var MS_PER_SECOND = 1000,
+    MS_PER_MINUTE = 60 * MS_PER_SECOND,
+    MS_PER_HOUR = 60 * MS_PER_MINUTE,
+    MS_PER_400_YEARS = (365 * 400 + 97) * 24 * MS_PER_HOUR;
+
+// actual modulo - handles negative numbers (for dates before 1970):
+function mod$1(dividend, divisor) {
+    return ((dividend % divisor) + divisor) % divisor;
+}
+
+function localStartOfDate(y, m, d) {
+    // the date constructor remaps years 0-99 to 1900-1999
+    if (y < 100 && y >= 0) {
+        // preserve leap years using a full 400 year cycle, then reset
+        return new Date(y + 400, m, d) - MS_PER_400_YEARS;
+    } else {
+        return new Date(y, m, d).valueOf();
+    }
+}
+
+function utcStartOfDate(y, m, d) {
+    // Date.UTC remaps years 0-99 to 1900-1999
+    if (y < 100 && y >= 0) {
+        // preserve leap years using a full 400 year cycle, then reset
+        return Date.UTC(y + 400, m, d) - MS_PER_400_YEARS;
+    } else {
+        return Date.UTC(y, m, d);
+    }
+}
+
+function startOf(units) {
+    var time, startOfDate;
+    units = normalizeUnits(units);
+    if (units === undefined || units === 'millisecond' || !this.isValid()) {
+        return this;
+    }
+
+    startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;
+
+    switch (units) {
+        case 'year':
+            time = startOfDate(this.year(), 0, 1);
+            break;
+        case 'quarter':
+            time = startOfDate(
+                this.year(),
+                this.month() - (this.month() % 3),
+                1
+            );
+            break;
+        case 'month':
+            time = startOfDate(this.year(), this.month(), 1);
+            break;
+        case 'week':
+            time = startOfDate(
+                this.year(),
+                this.month(),
+                this.date() - this.weekday()
+            );
+            break;
+        case 'isoWeek':
+            time = startOfDate(
+                this.year(),
+                this.month(),
+                this.date() - (this.isoWeekday() - 1)
+            );
+            break;
+        case 'day':
+        case 'date':
+            time = startOfDate(this.year(), this.month(), this.date());
+            break;
+        case 'hour':
+            time = this._d.valueOf();
+            time -= mod$1(
+                time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE),
+                MS_PER_HOUR
+            );
+            break;
+        case 'minute':
+            time = this._d.valueOf();
+            time -= mod$1(time, MS_PER_MINUTE);
+            break;
+        case 'second':
+            time = this._d.valueOf();
+            time -= mod$1(time, MS_PER_SECOND);
+            break;
+    }
+
+    this._d.setTime(time);
+    hooks.updateOffset(this, true);
+    return this;
+}
+
+function endOf(units) {
+    var time, startOfDate;
+    units = normalizeUnits(units);
+    if (units === undefined || units === 'millisecond' || !this.isValid()) {
+        return this;
+    }
+
+    startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;
+
+    switch (units) {
+        case 'year':
+            time = startOfDate(this.year() + 1, 0, 1) - 1;
+            break;
+        case 'quarter':
+            time =
+                startOfDate(
+                    this.year(),
+                    this.month() - (this.month() % 3) + 3,
+                    1
+                ) - 1;
+            break;
+        case 'month':
+            time = startOfDate(this.year(), this.month() + 1, 1) - 1;
+            break;
+        case 'week':
+            time =
+                startOfDate(
+                    this.year(),
+                    this.month(),
+                    this.date() - this.weekday() + 7
+                ) - 1;
+            break;
+        case 'isoWeek':
+            time =
+                startOfDate(
+                    this.year(),
+                    this.month(),
+                    this.date() - (this.isoWeekday() - 1) + 7
+                ) - 1;
+            break;
+        case 'day':
+        case 'date':
+            time = startOfDate(this.year(), this.month(), this.date() + 1) - 1;
+            break;
+        case 'hour':
+            time = this._d.valueOf();
+            time +=
+                MS_PER_HOUR -
+                mod$1(
+                    time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE),
+                    MS_PER_HOUR
+                ) -
+                1;
+            break;
+        case 'minute':
+            time = this._d.valueOf();
+            time += MS_PER_MINUTE - mod$1(time, MS_PER_MINUTE) - 1;
+            break;
+        case 'second':
+            time = this._d.valueOf();
+            time += MS_PER_SECOND - mod$1(time, MS_PER_SECOND) - 1;
+            break;
+    }
+
+    this._d.setTime(time);
+    hooks.updateOffset(this, true);
+    return this;
+}
+
+function valueOf() {
+    return this._d.valueOf() - (this._offset || 0) * 60000;
+}
+
+function unix() {
+    return Math.floor(this.valueOf() / 1000);
+}
+
+function toDate() {
+    return new Date(this.valueOf());
+}
+
+function toArray() {
+    var m = this;
+    return [
+        m.year(),
+        m.month(),
+        m.date(),
+        m.hour(),
+        m.minute(),
+        m.second(),
+        m.millisecond(),
+    ];
+}
+
+function toObject() {
+    var m = this;
+    return {
+        years: m.year(),
+        months: m.month(),
+        date: m.date(),
+        hours: m.hours(),
+        minutes: m.minutes(),
+        seconds: m.seconds(),
+        milliseconds: m.milliseconds(),
+    };
+}
+
+function toJSON() {
+    // new Date(NaN).toJSON() === null
+    return this.isValid() ? this.toISOString() : null;
+}
+
+function isValid$2() {
+    return isValid(this);
+}
+
+function parsingFlags() {
+    return extend({}, getParsingFlags(this));
+}
+
+function invalidAt() {
+    return getParsingFlags(this).overflow;
+}
+
+function creationData() {
+    return {
+        input: this._i,
+        format: this._f,
+        locale: this._locale,
+        isUTC: this._isUTC,
+        strict: this._strict,
+    };
+}
+
+addFormatToken('N', 0, 0, 'eraAbbr');
+addFormatToken('NN', 0, 0, 'eraAbbr');
+addFormatToken('NNN', 0, 0, 'eraAbbr');
+addFormatToken('NNNN', 0, 0, 'eraName');
+addFormatToken('NNNNN', 0, 0, 'eraNarrow');
+
+addFormatToken('y', ['y', 1], 'yo', 'eraYear');
+addFormatToken('y', ['yy', 2], 0, 'eraYear');
+addFormatToken('y', ['yyy', 3], 0, 'eraYear');
+addFormatToken('y', ['yyyy', 4], 0, 'eraYear');
+
+addRegexToken('N', matchEraAbbr);
+addRegexToken('NN', matchEraAbbr);
+addRegexToken('NNN', matchEraAbbr);
+addRegexToken('NNNN', matchEraName);
+addRegexToken('NNNNN', matchEraNarrow);
+
+addParseToken(
+    ['N', 'NN', 'NNN', 'NNNN', 'NNNNN'],
+    function (input, array, config, token) {
+        var era = config._locale.erasParse(input, token, config._strict);
+        if (era) {
+            getParsingFlags(config).era = era;
+        } else {
+            getParsingFlags(config).invalidEra = input;
+        }
+    }
+);
+
+addRegexToken('y', matchUnsigned);
+addRegexToken('yy', matchUnsigned);
+addRegexToken('yyy', matchUnsigned);
+addRegexToken('yyyy', matchUnsigned);
+addRegexToken('yo', matchEraYearOrdinal);
+
+addParseToken(['y', 'yy', 'yyy', 'yyyy'], YEAR);
+addParseToken(['yo'], function (input, array, config, token) {
+    var match;
+    if (config._locale._eraYearOrdinalRegex) {
+        match = input.match(config._locale._eraYearOrdinalRegex);
+    }
+
+    if (config._locale.eraYearOrdinalParse) {
+        array[YEAR] = config._locale.eraYearOrdinalParse(input, match);
+    } else {
+        array[YEAR] = parseInt(input, 10);
+    }
+});
+
+function localeEras(m, format) {
+    var i,
+        l,
+        date,
+        eras = this._eras || getLocale('en')._eras;
+    for (i = 0, l = eras.length; i < l; ++i) {
+        switch (typeof eras[i].since) {
+            case 'string':
+                // truncate time
+                date = hooks(eras[i].since).startOf('day');
+                eras[i].since = date.valueOf();
+                break;
+        }
+
+        switch (typeof eras[i].until) {
+            case 'undefined':
+                eras[i].until = +Infinity;
+                break;
+            case 'string':
+                // truncate time
+                date = hooks(eras[i].until).startOf('day').valueOf();
+                eras[i].until = date.valueOf();
+                break;
+        }
+    }
+    return eras;
+}
+
+function localeErasParse(eraName, format, strict) {
+    var i,
+        l,
+        eras = this.eras(),
+        name,
+        abbr,
+        narrow;
+    eraName = eraName.toUpperCase();
+
+    for (i = 0, l = eras.length; i < l; ++i) {
+        name = eras[i].name.toUpperCase();
+        abbr = eras[i].abbr.toUpperCase();
+        narrow = eras[i].narrow.toUpperCase();
+
+        if (strict) {
+            switch (format) {
+                case 'N':
+                case 'NN':
+                case 'NNN':
+                    if (abbr === eraName) {
+                        return eras[i];
+                    }
+                    break;
+
+                case 'NNNN':
+                    if (name === eraName) {
+                        return eras[i];
+                    }
+                    break;
+
+                case 'NNNNN':
+                    if (narrow === eraName) {
+                        return eras[i];
+                    }
+                    break;
+            }
+        } else if ([name, abbr, narrow].indexOf(eraName) >= 0) {
+            return eras[i];
+        }
+    }
+}
+
+function localeErasConvertYear(era, year) {
+    var dir = era.since <= era.until ? +1 : -1;
+    if (year === undefined) {
+        return hooks(era.since).year();
+    } else {
+        return hooks(era.since).year() + (year - era.offset) * dir;
+    }
+}
+
+function getEraName() {
+    var i,
+        l,
+        val,
+        eras = this.localeData().eras();
+    for (i = 0, l = eras.length; i < l; ++i) {
+        // truncate time
+        val = this.clone().startOf('day').valueOf();
+
+        if (eras[i].since <= val && val <= eras[i].until) {
+            return eras[i].name;
+        }
+        if (eras[i].until <= val && val <= eras[i].since) {
+            return eras[i].name;
+        }
+    }
+
+    return '';
+}
+
+function getEraNarrow() {
+    var i,
+        l,
+        val,
+        eras = this.localeData().eras();
+    for (i = 0, l = eras.length; i < l; ++i) {
+        // truncate time
+        val = this.clone().startOf('day').valueOf();
+
+        if (eras[i].since <= val && val <= eras[i].until) {
+            return eras[i].narrow;
+        }
+        if (eras[i].until <= val && val <= eras[i].since) {
+            return eras[i].narrow;
+        }
+    }
+
+    return '';
+}
+
+function getEraAbbr() {
+    var i,
+        l,
+        val,
+        eras = this.localeData().eras();
+    for (i = 0, l = eras.length; i < l; ++i) {
+        // truncate time
+        val = this.clone().startOf('day').valueOf();
+
+        if (eras[i].since <= val && val <= eras[i].until) {
+            return eras[i].abbr;
+        }
+        if (eras[i].until <= val && val <= eras[i].since) {
+            return eras[i].abbr;
+        }
+    }
+
+    return '';
+}
+
+function getEraYear() {
+    var i,
+        l,
+        dir,
+        val,
+        eras = this.localeData().eras();
+    for (i = 0, l = eras.length; i < l; ++i) {
+        dir = eras[i].since <= eras[i].until ? +1 : -1;
+
+        // truncate time
+        val = this.clone().startOf('day').valueOf();
+
+        if (
+            (eras[i].since <= val && val <= eras[i].until) ||
+            (eras[i].until <= val && val <= eras[i].since)
+        ) {
+            return (
+                (this.year() - hooks(eras[i].since).year()) * dir +
+                eras[i].offset
+            );
+        }
+    }
+
+    return this.year();
+}
+
+function erasNameRegex(isStrict) {
+    if (!hasOwnProp(this, '_erasNameRegex')) {
+        computeErasParse.call(this);
+    }
+    return isStrict ? this._erasNameRegex : this._erasRegex;
+}
+
+function erasAbbrRegex(isStrict) {
+    if (!hasOwnProp(this, '_erasAbbrRegex')) {
+        computeErasParse.call(this);
+    }
+    return isStrict ? this._erasAbbrRegex : this._erasRegex;
+}
+
+function erasNarrowRegex(isStrict) {
+    if (!hasOwnProp(this, '_erasNarrowRegex')) {
+        computeErasParse.call(this);
+    }
+    return isStrict ? this._erasNarrowRegex : this._erasRegex;
+}
+
+function matchEraAbbr(isStrict, locale) {
+    return locale.erasAbbrRegex(isStrict);
+}
+
+function matchEraName(isStrict, locale) {
+    return locale.erasNameRegex(isStrict);
+}
+
+function matchEraNarrow(isStrict, locale) {
+    return locale.erasNarrowRegex(isStrict);
+}
+
+function matchEraYearOrdinal(isStrict, locale) {
+    return locale._eraYearOrdinalRegex || matchUnsigned;
+}
+
+function computeErasParse() {
+    var abbrPieces = [],
+        namePieces = [],
+        narrowPieces = [],
+        mixedPieces = [],
+        i,
+        l,
+        erasName,
+        erasAbbr,
+        erasNarrow,
+        eras = this.eras();
+
+    for (i = 0, l = eras.length; i < l; ++i) {
+        erasName = regexEscape(eras[i].name);
+        erasAbbr = regexEscape(eras[i].abbr);
+        erasNarrow = regexEscape(eras[i].narrow);
+
+        namePieces.push(erasName);
+        abbrPieces.push(erasAbbr);
+        narrowPieces.push(erasNarrow);
+        mixedPieces.push(erasName);
+        mixedPieces.push(erasAbbr);
+        mixedPieces.push(erasNarrow);
+    }
+
+    this._erasRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
+    this._erasNameRegex = new RegExp('^(' + namePieces.join('|') + ')', 'i');
+    this._erasAbbrRegex = new RegExp('^(' + abbrPieces.join('|') + ')', 'i');
+    this._erasNarrowRegex = new RegExp(
+        '^(' + narrowPieces.join('|') + ')',
+        'i'
+    );
+}
+
+// FORMATTING
+
+addFormatToken(0, ['gg', 2], 0, function () {
+    return this.weekYear() % 100;
+});
+
+addFormatToken(0, ['GG', 2], 0, function () {
+    return this.isoWeekYear() % 100;
+});
+
+function addWeekYearFormatToken(token, getter) {
+    addFormatToken(0, [token, token.length], 0, getter);
+}
+
+addWeekYearFormatToken('gggg', 'weekYear');
+addWeekYearFormatToken('ggggg', 'weekYear');
+addWeekYearFormatToken('GGGG', 'isoWeekYear');
+addWeekYearFormatToken('GGGGG', 'isoWeekYear');
+
+// ALIASES
+
+// PARSING
+
+addRegexToken('G', matchSigned);
+addRegexToken('g', matchSigned);
+addRegexToken('GG', match1to2, match2);
+addRegexToken('gg', match1to2, match2);
+addRegexToken('GGGG', match1to4, match4);
+addRegexToken('gggg', match1to4, match4);
+addRegexToken('GGGGG', match1to6, match6);
+addRegexToken('ggggg', match1to6, match6);
+
+addWeekParseToken(
+    ['gggg', 'ggggg', 'GGGG', 'GGGGG'],
+    function (input, week, config, token) {
+        week[token.substr(0, 2)] = toInt(input);
+    }
+);
+
+addWeekParseToken(['gg', 'GG'], function (input, week, config, token) {
+    week[token] = hooks.parseTwoDigitYear(input);
+});
+
+// MOMENTS
+
+function getSetWeekYear(input) {
+    return getSetWeekYearHelper.call(
+        this,
+        input,
+        this.week(),
+        this.weekday() + this.localeData()._week.dow,
+        this.localeData()._week.dow,
+        this.localeData()._week.doy
+    );
+}
+
+function getSetISOWeekYear(input) {
+    return getSetWeekYearHelper.call(
+        this,
+        input,
+        this.isoWeek(),
+        this.isoWeekday(),
+        1,
+        4
+    );
+}
+
+function getISOWeeksInYear() {
+    return weeksInYear(this.year(), 1, 4);
+}
+
+function getISOWeeksInISOWeekYear() {
+    return weeksInYear(this.isoWeekYear(), 1, 4);
+}
+
+function getWeeksInYear() {
+    var weekInfo = this.localeData()._week;
+    return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy);
+}
+
+function getWeeksInWeekYear() {
+    var weekInfo = this.localeData()._week;
+    return weeksInYear(this.weekYear(), weekInfo.dow, weekInfo.doy);
+}
+
+function getSetWeekYearHelper(input, week, weekday, dow, doy) {
+    var weeksTarget;
+    if (input == null) {
+        return weekOfYear(this, dow, doy).year;
+    } else {
+        weeksTarget = weeksInYear(input, dow, doy);
+        if (week > weeksTarget) {
+            week = weeksTarget;
+        }
+        return setWeekAll.call(this, input, week, weekday, dow, doy);
+    }
+}
+
+function setWeekAll(weekYear, week, weekday, dow, doy) {
+    var dayOfYearData = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy),
+        date = createUTCDate(dayOfYearData.year, 0, dayOfYearData.dayOfYear);
+
+    this.year(date.getUTCFullYear());
+    this.month(date.getUTCMonth());
+    this.date(date.getUTCDate());
+    return this;
+}
+
+// FORMATTING
+
+addFormatToken('Q', 0, 'Qo', 'quarter');
+
+// PARSING
+
+addRegexToken('Q', match1);
+addParseToken('Q', function (input, array) {
+    array[MONTH] = (toInt(input) - 1) * 3;
+});
+
+// MOMENTS
+
+function getSetQuarter(input) {
+    return input == null
+        ? Math.ceil((this.month() + 1) / 3)
+        : this.month((input - 1) * 3 + (this.month() % 3));
+}
+
+// FORMATTING
+
+addFormatToken('D', ['DD', 2], 'Do', 'date');
+
+// PARSING
+
+addRegexToken('D', match1to2, match1to2NoLeadingZero);
+addRegexToken('DD', match1to2, match2);
+addRegexToken('Do', function (isStrict, locale) {
+    // TODO: Remove "ordinalParse" fallback in next major release.
+    return isStrict
+        ? locale._dayOfMonthOrdinalParse || locale._ordinalParse
+        : locale._dayOfMonthOrdinalParseLenient;
+});
+
+addParseToken(['D', 'DD'], DATE);
+addParseToken('Do', function (input, array) {
+    array[DATE] = toInt(input.match(match1to2)[0]);
+});
+
+// MOMENTS
+
+var getSetDayOfMonth = makeGetSet('Date', true);
+
+// FORMATTING
+
+addFormatToken('DDD', ['DDDD', 3], 'DDDo', 'dayOfYear');
+
+// PARSING
+
+addRegexToken('DDD', match1to3);
+addRegexToken('DDDD', match3);
+addParseToken(['DDD', 'DDDD'], function (input, array, config) {
+    config._dayOfYear = toInt(input);
+});
+
+// HELPERS
+
+// MOMENTS
+
+function getSetDayOfYear(input) {
+    var dayOfYear =
+        Math.round(
+            (this.clone().startOf('day') - this.clone().startOf('year')) / 864e5
+        ) + 1;
+    return input == null ? dayOfYear : this.add(input - dayOfYear, 'd');
+}
+
+// FORMATTING
+
+addFormatToken('m', ['mm', 2], 0, 'minute');
+
+// PARSING
+
+addRegexToken('m', match1to2, match1to2HasZero);
+addRegexToken('mm', match1to2, match2);
+addParseToken(['m', 'mm'], MINUTE);
+
+// MOMENTS
+
+var getSetMinute = makeGetSet('Minutes', false);
+
+// FORMATTING
+
+addFormatToken('s', ['ss', 2], 0, 'second');
+
+// PARSING
+
+addRegexToken('s', match1to2, match1to2HasZero);
+addRegexToken('ss', match1to2, match2);
+addParseToken(['s', 'ss'], SECOND);
+
+// MOMENTS
+
+var getSetSecond = makeGetSet('Seconds', false);
+
+// FORMATTING
+
+addFormatToken('S', 0, 0, function () {
+    return ~~(this.millisecond() / 100);
+});
+
+addFormatToken(0, ['SS', 2], 0, function () {
+    return ~~(this.millisecond() / 10);
+});
+
+addFormatToken(0, ['SSS', 3], 0, 'millisecond');
+addFormatToken(0, ['SSSS', 4], 0, function () {
+    return this.millisecond() * 10;
+});
+addFormatToken(0, ['SSSSS', 5], 0, function () {
+    return this.millisecond() * 100;
+});
+addFormatToken(0, ['SSSSSS', 6], 0, function () {
+    return this.millisecond() * 1000;
+});
+addFormatToken(0, ['SSSSSSS', 7], 0, function () {
+    return this.millisecond() * 10000;
+});
+addFormatToken(0, ['SSSSSSSS', 8], 0, function () {
+    return this.millisecond() * 100000;
+});
+addFormatToken(0, ['SSSSSSSSS', 9], 0, function () {
+    return this.millisecond() * 1000000;
+});
+
+// PARSING
+
+addRegexToken('S', match1to3, match1);
+addRegexToken('SS', match1to3, match2);
+addRegexToken('SSS', match1to3, match3);
+
+var token, getSetMillisecond;
+for (token = 'SSSS'; token.length <= 9; token += 'S') {
+    addRegexToken(token, matchUnsigned);
+}
+
+function parseMs(input, array) {
+    array[MILLISECOND] = toInt(('0.' + input) * 1000);
+}
+
+for (token = 'S'; token.length <= 9; token += 'S') {
+    addParseToken(token, parseMs);
+}
+
+getSetMillisecond = makeGetSet('Milliseconds', false);
+
+// FORMATTING
+
+addFormatToken('z', 0, 0, 'zoneAbbr');
+addFormatToken('zz', 0, 0, 'zoneName');
+
+// MOMENTS
+
+function getZoneAbbr() {
+    return this._isUTC ? 'UTC' : '';
+}
+
+function getZoneName() {
+    return this._isUTC ? 'Coordinated Universal Time' : '';
+}
+
+var proto = Moment.prototype;
+
+proto.add = add;
+proto.calendar = calendar$1;
+proto.clone = clone;
+proto.diff = diff;
+proto.endOf = endOf;
+proto.format = format;
+proto.from = from;
+proto.fromNow = fromNow;
+proto.to = to;
+proto.toNow = toNow;
+proto.get = stringGet;
+proto.invalidAt = invalidAt;
+proto.isAfter = isAfter;
+proto.isBefore = isBefore;
+proto.isBetween = isBetween;
+proto.isSame = isSame;
+proto.isSameOrAfter = isSameOrAfter;
+proto.isSameOrBefore = isSameOrBefore;
+proto.isValid = isValid$2;
+proto.lang = lang;
+proto.locale = locale;
+proto.localeData = localeData;
+proto.max = prototypeMax;
+proto.min = prototypeMin;
+proto.parsingFlags = parsingFlags;
+proto.set = stringSet;
+proto.startOf = startOf;
+proto.subtract = subtract;
+proto.toArray = toArray;
+proto.toObject = toObject;
+proto.toDate = toDate;
+proto.toISOString = toISOString;
+proto.inspect = inspect;
+if (typeof Symbol !== 'undefined' && Symbol.for != null) {
+    proto[Symbol.for('nodejs.util.inspect.custom')] = function () {
+        return 'Moment<' + this.format() + '>';
+    };
+}
+proto.toJSON = toJSON;
+proto.toString = toString;
+proto.unix = unix;
+proto.valueOf = valueOf;
+proto.creationData = creationData;
+proto.eraName = getEraName;
+proto.eraNarrow = getEraNarrow;
+proto.eraAbbr = getEraAbbr;
+proto.eraYear = getEraYear;
+proto.year = getSetYear;
+proto.isLeapYear = getIsLeapYear;
+proto.weekYear = getSetWeekYear;
+proto.isoWeekYear = getSetISOWeekYear;
+proto.quarter = proto.quarters = getSetQuarter;
+proto.month = getSetMonth;
+proto.daysInMonth = getDaysInMonth;
+proto.week = proto.weeks = getSetWeek;
+proto.isoWeek = proto.isoWeeks = getSetISOWeek;
+proto.weeksInYear = getWeeksInYear;
+proto.weeksInWeekYear = getWeeksInWeekYear;
+proto.isoWeeksInYear = getISOWeeksInYear;
+proto.isoWeeksInISOWeekYear = getISOWeeksInISOWeekYear;
+proto.date = getSetDayOfMonth;
+proto.day = proto.days = getSetDayOfWeek;
+proto.weekday = getSetLocaleDayOfWeek;
+proto.isoWeekday = getSetISODayOfWeek;
+proto.dayOfYear = getSetDayOfYear;
+proto.hour = proto.hours = getSetHour;
+proto.minute = proto.minutes = getSetMinute;
+proto.second = proto.seconds = getSetSecond;
+proto.millisecond = proto.milliseconds = getSetMillisecond;
+proto.utcOffset = getSetOffset;
+proto.utc = setOffsetToUTC;
+proto.local = setOffsetToLocal;
+proto.parseZone = setOffsetToParsedOffset;
+proto.hasAlignedHourOffset = hasAlignedHourOffset;
+proto.isDST = isDaylightSavingTime;
+proto.isLocal = isLocal;
+proto.isUtcOffset = isUtcOffset;
+proto.isUtc = isUtc;
+proto.isUTC = isUtc;
+proto.zoneAbbr = getZoneAbbr;
+proto.zoneName = getZoneName;
+proto.dates = deprecate(
+    'dates accessor is deprecated. Use date instead.',
+    getSetDayOfMonth
+);
+proto.months = deprecate(
+    'months accessor is deprecated. Use month instead',
+    getSetMonth
+);
+proto.years = deprecate(
+    'years accessor is deprecated. Use year instead',
+    getSetYear
+);
+proto.zone = deprecate(
+    'moment().zone is deprecated, use moment().utcOffset instead. http://momentjs.com/guides/#/warnings/zone/',
+    getSetZone
+);
+proto.isDSTShifted = deprecate(
+    'isDSTShifted is deprecated. See http://momentjs.com/guides/#/warnings/dst-shifted/ for more information',
+    isDaylightSavingTimeShifted
+);
+
+function createUnix(input) {
+    return createLocal(input * 1000);
+}
+
+function createInZone() {
+    return createLocal.apply(null, arguments).parseZone();
+}
+
+function preParsePostFormat(string) {
+    return string;
+}
+
+var proto$1 = Locale.prototype;
+
+proto$1.calendar = calendar;
+proto$1.longDateFormat = longDateFormat;
+proto$1.invalidDate = invalidDate;
+proto$1.ordinal = ordinal;
+proto$1.preparse = preParsePostFormat;
+proto$1.postformat = preParsePostFormat;
+proto$1.relativeTime = relativeTime;
+proto$1.pastFuture = pastFuture;
+proto$1.set = set;
+proto$1.eras = localeEras;
+proto$1.erasParse = localeErasParse;
+proto$1.erasConvertYear = localeErasConvertYear;
+proto$1.erasAbbrRegex = erasAbbrRegex;
+proto$1.erasNameRegex = erasNameRegex;
+proto$1.erasNarrowRegex = erasNarrowRegex;
+
+proto$1.months = localeMonths;
+proto$1.monthsShort = localeMonthsShort;
+proto$1.monthsParse = localeMonthsParse;
+proto$1.monthsRegex = monthsRegex;
+proto$1.monthsShortRegex = monthsShortRegex;
+proto$1.week = localeWeek;
+proto$1.firstDayOfYear = localeFirstDayOfYear;
+proto$1.firstDayOfWeek = localeFirstDayOfWeek;
+
+proto$1.weekdays = localeWeekdays;
+proto$1.weekdaysMin = localeWeekdaysMin;
+proto$1.weekdaysShort = localeWeekdaysShort;
+proto$1.weekdaysParse = localeWeekdaysParse;
+
+proto$1.weekdaysRegex = weekdaysRegex;
+proto$1.weekdaysShortRegex = weekdaysShortRegex;
+proto$1.weekdaysMinRegex = weekdaysMinRegex;
+
+proto$1.isPM = localeIsPM;
+proto$1.meridiem = localeMeridiem;
+
+function get$1(format, index, field, setter) {
+    var locale = getLocale(),
+        utc = createUTC().set(setter, index);
+    return locale[field](utc, format);
+}
+
+function listMonthsImpl(format, index, field) {
+    if (isNumber(format)) {
+        index = format;
+        format = undefined;
+    }
+
+    format = format || '';
+
+    if (index != null) {
+        return get$1(format, index, field, 'month');
+    }
+
+    var i,
+        out = [];
+    for (i = 0; i < 12; i++) {
+        out[i] = get$1(format, i, field, 'month');
+    }
+    return out;
+}
+
+// ()
+// (5)
+// (fmt, 5)
+// (fmt)
+// (true)
+// (true, 5)
+// (true, fmt, 5)
+// (true, fmt)
+function listWeekdaysImpl(localeSorted, format, index, field) {
+    if (typeof localeSorted === 'boolean') {
+        if (isNumber(format)) {
+            index = format;
+            format = undefined;
+        }
+
+        format = format || '';
+    } else {
+        format = localeSorted;
+        index = format;
+        localeSorted = false;
+
+        if (isNumber(format)) {
+            index = format;
+            format = undefined;
+        }
+
+        format = format || '';
+    }
+
+    var locale = getLocale(),
+        shift = localeSorted ? locale._week.dow : 0,
+        i,
+        out = [];
+
+    if (index != null) {
+        return get$1(format, (index + shift) % 7, field, 'day');
+    }
+
+    for (i = 0; i < 7; i++) {
+        out[i] = get$1(format, (i + shift) % 7, field, 'day');
+    }
+    return out;
+}
+
+function listMonths(format, index) {
+    return listMonthsImpl(format, index, 'months');
+}
+
+function listMonthsShort(format, index) {
+    return listMonthsImpl(format, index, 'monthsShort');
+}
+
+function listWeekdays(localeSorted, format, index) {
+    return listWeekdaysImpl(localeSorted, format, index, 'weekdays');
+}
+
+function listWeekdaysShort(localeSorted, format, index) {
+    return listWeekdaysImpl(localeSorted, format, index, 'weekdaysShort');
+}
+
+function listWeekdaysMin(localeSorted, format, index) {
+    return listWeekdaysImpl(localeSorted, format, index, 'weekdaysMin');
+}
+
+getSetGlobalLocale('en', {
+    eras: [
+        {
+            since: '0001-01-01',
+            until: +Infinity,
+            offset: 1,
+            name: 'Anno Domini',
+            narrow: 'AD',
+            abbr: 'AD',
+        },
+        {
+            since: '0000-12-31',
+            until: -Infinity,
+            offset: 1,
+            name: 'Before Christ',
+            narrow: 'BC',
+            abbr: 'BC',
+        },
+    ],
+    dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
+    ordinal: function (number) {
+        var b = number % 10,
+            output =
+                toInt((number % 100) / 10) === 1
+                    ? 'th'
+                    : b === 1
+                      ? 'st'
+                      : b === 2
+                        ? 'nd'
+                        : b === 3
+                          ? 'rd'
+                          : 'th';
+        return number + output;
+    },
+});
+
+// Side effect imports
+
+hooks.lang = deprecate(
+    'moment.lang is deprecated. Use moment.locale instead.',
+    getSetGlobalLocale
+);
+hooks.langData = deprecate(
+    'moment.langData is deprecated. Use moment.localeData instead.',
+    getLocale
+);
+
+var mathAbs = Math.abs;
+
+function abs() {
+    var data = this._data;
+
+    this._milliseconds = mathAbs(this._milliseconds);
+    this._days = mathAbs(this._days);
+    this._months = mathAbs(this._months);
+
+    data.milliseconds = mathAbs(data.milliseconds);
+    data.seconds = mathAbs(data.seconds);
+    data.minutes = mathAbs(data.minutes);
+    data.hours = mathAbs(data.hours);
+    data.months = mathAbs(data.months);
+    data.years = mathAbs(data.years);
+
+    return this;
+}
+
+function addSubtract$1(duration, input, value, direction) {
+    var other = createDuration(input, value);
+
+    duration._milliseconds += direction * other._milliseconds;
+    duration._days += direction * other._days;
+    duration._months += direction * other._months;
+
+    return duration._bubble();
+}
+
+// supports only 2.0-style add(1, 's') or add(duration)
+function add$1(input, value) {
+    return addSubtract$1(this, input, value, 1);
+}
+
+// supports only 2.0-style subtract(1, 's') or subtract(duration)
+function subtract$1(input, value) {
+    return addSubtract$1(this, input, value, -1);
+}
+
+function absCeil(number) {
+    if (number < 0) {
+        return Math.floor(number);
+    } else {
+        return Math.ceil(number);
+    }
+}
+
+function bubble() {
+    var milliseconds = this._milliseconds,
+        days = this._days,
+        months = this._months,
+        data = this._data,
+        seconds,
+        minutes,
+        hours,
+        years,
+        monthsFromDays;
+
+    // if we have a mix of positive and negative values, bubble down first
+    // check: https://github.com/moment/moment/issues/2166
+    if (
+        !(
+            (milliseconds >= 0 && days >= 0 && months >= 0) ||
+            (milliseconds <= 0 && days <= 0 && months <= 0)
+        )
+    ) {
+        milliseconds += absCeil(monthsToDays(months) + days) * 864e5;
+        days = 0;
+        months = 0;
+    }
+
+    // The following code bubbles up values, see the tests for
+    // examples of what that means.
+    data.milliseconds = milliseconds % 1000;
+
+    seconds = absFloor(milliseconds / 1000);
+    data.seconds = seconds % 60;
+
+    minutes = absFloor(seconds / 60);
+    data.minutes = minutes % 60;
+
+    hours = absFloor(minutes / 60);
+    data.hours = hours % 24;
+
+    days += absFloor(hours / 24);
+
+    // convert days to months
+    monthsFromDays = absFloor(daysToMonths(days));
+    months += monthsFromDays;
+    days -= absCeil(monthsToDays(monthsFromDays));
+
+    // 12 months -> 1 year
+    years = absFloor(months / 12);
+    months %= 12;
+
+    data.days = days;
+    data.months = months;
+    data.years = years;
+
+    return this;
+}
+
+function daysToMonths(days) {
+    // 400 years have 146097 days (taking into account leap year rules)
+    // 400 years have 12 months === 4800
+    return (days * 4800) / 146097;
+}
+
+function monthsToDays(months) {
+    // the reverse of daysToMonths
+    return (months * 146097) / 4800;
+}
+
+function as(units) {
+    if (!this.isValid()) {
+        return NaN;
+    }
+    var days,
+        months,
+        milliseconds = this._milliseconds;
+
+    units = normalizeUnits(units);
+
+    if (units === 'month' || units === 'quarter' || units === 'year') {
+        days = this._days + milliseconds / 864e5;
+        months = this._months + daysToMonths(days);
+        switch (units) {
+            case 'month':
+                return months;
+            case 'quarter':
+                return months / 3;
+            case 'year':
+                return months / 12;
+        }
+    } else {
+        // handle milliseconds separately because of floating point math errors (issue #1867)
+        days = this._days + Math.round(monthsToDays(this._months));
+        switch (units) {
+            case 'week':
+                return days / 7 + milliseconds / 6048e5;
+            case 'day':
+                return days + milliseconds / 864e5;
+            case 'hour':
+                return days * 24 + milliseconds / 36e5;
+            case 'minute':
+                return days * 1440 + milliseconds / 6e4;
+            case 'second':
+                return days * 86400 + milliseconds / 1000;
+            // Math.floor prevents floating point math errors here
+            case 'millisecond':
+                return Math.floor(days * 864e5) + milliseconds;
+            default:
+                throw new Error('Unknown unit ' + units);
+        }
+    }
+}
+
+function makeAs(alias) {
+    return function () {
+        return this.as(alias);
+    };
+}
+
+var asMilliseconds = makeAs('ms'),
+    asSeconds = makeAs('s'),
+    asMinutes = makeAs('m'),
+    asHours = makeAs('h'),
+    asDays = makeAs('d'),
+    asWeeks = makeAs('w'),
+    asMonths = makeAs('M'),
+    asQuarters = makeAs('Q'),
+    asYears = makeAs('y'),
+    valueOf$1 = asMilliseconds;
+
+function clone$1() {
+    return createDuration(this);
+}
+
+function get$2(units) {
+    units = normalizeUnits(units);
+    return this.isValid() ? this[units + 's']() : NaN;
+}
+
+function makeGetter(name) {
+    return function () {
+        return this.isValid() ? this._data[name] : NaN;
+    };
+}
+
+var milliseconds = makeGetter('milliseconds'),
+    seconds = makeGetter('seconds'),
+    minutes = makeGetter('minutes'),
+    hours = makeGetter('hours'),
+    days = makeGetter('days'),
+    months = makeGetter('months'),
+    years = makeGetter('years');
+
+function weeks() {
+    return absFloor(this.days() / 7);
+}
+
+var round = Math.round,
+    thresholds = {
+        ss: 44, // a few seconds to seconds
+        s: 45, // seconds to minute
+        m: 45, // minutes to hour
+        h: 22, // hours to day
+        d: 26, // days to month/week
+        w: null, // weeks to month
+        M: 11, // months to year
+    };
+
+// helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize
+function substituteTimeAgo(string, number, withoutSuffix, isFuture, locale) {
+    return locale.relativeTime(number || 1, !!withoutSuffix, string, isFuture);
+}
+
+function relativeTime$1(posNegDuration, withoutSuffix, thresholds, locale) {
+    var duration = createDuration(posNegDuration).abs(),
+        seconds = round(duration.as('s')),
+        minutes = round(duration.as('m')),
+        hours = round(duration.as('h')),
+        days = round(duration.as('d')),
+        months = round(duration.as('M')),
+        weeks = round(duration.as('w')),
+        years = round(duration.as('y')),
+        a =
+            (seconds <= thresholds.ss && ['s', seconds]) ||
+            (seconds < thresholds.s && ['ss', seconds]) ||
+            (minutes <= 1 && ['m']) ||
+            (minutes < thresholds.m && ['mm', minutes]) ||
+            (hours <= 1 && ['h']) ||
+            (hours < thresholds.h && ['hh', hours]) ||
+            (days <= 1 && ['d']) ||
+            (days < thresholds.d && ['dd', days]);
+
+    if (thresholds.w != null) {
+        a =
+            a ||
+            (weeks <= 1 && ['w']) ||
+            (weeks < thresholds.w && ['ww', weeks]);
+    }
+    a = a ||
+        (months <= 1 && ['M']) ||
+        (months < thresholds.M && ['MM', months]) ||
+        (years <= 1 && ['y']) || ['yy', years];
+
+    a[2] = withoutSuffix;
+    a[3] = +posNegDuration > 0;
+    a[4] = locale;
+    return substituteTimeAgo.apply(null, a);
+}
+
+// This function allows you to set the rounding function for relative time strings
+function getSetRelativeTimeRounding(roundingFunction) {
+    if (roundingFunction === undefined) {
+        return round;
+    }
+    if (typeof roundingFunction === 'function') {
+        round = roundingFunction;
+        return true;
+    }
+    return false;
+}
+
+// This function allows you to set a threshold for relative time strings
+function getSetRelativeTimeThreshold(threshold, limit) {
+    if (thresholds[threshold] === undefined) {
+        return false;
+    }
+    if (limit === undefined) {
+        return thresholds[threshold];
+    }
+    thresholds[threshold] = limit;
+    if (threshold === 's') {
+        thresholds.ss = limit - 1;
+    }
+    return true;
+}
+
+function humanize(argWithSuffix, argThresholds) {
+    if (!this.isValid()) {
+        return this.localeData().invalidDate();
+    }
+
+    var withSuffix = false,
+        th = thresholds,
+        locale,
+        output;
+
+    if (typeof argWithSuffix === 'object') {
+        argThresholds = argWithSuffix;
+        argWithSuffix = false;
+    }
+    if (typeof argWithSuffix === 'boolean') {
+        withSuffix = argWithSuffix;
+    }
+    if (typeof argThresholds === 'object') {
+        th = Object.assign({}, thresholds, argThresholds);
+        if (argThresholds.s != null && argThresholds.ss == null) {
+            th.ss = argThresholds.s - 1;
+        }
+    }
+
+    locale = this.localeData();
+    output = relativeTime$1(this, !withSuffix, th, locale);
+
+    if (withSuffix) {
+        output = locale.pastFuture(+this, output);
+    }
+
+    return locale.postformat(output);
+}
+
+var abs$1 = Math.abs;
+
+function sign(x) {
+    return (x > 0) - (x < 0) || +x;
+}
+
+function toISOString$1() {
+    // for ISO strings we do not use the normal bubbling rules:
+    //  * milliseconds bubble up until they become hours
+    //  * days do not bubble at all
+    //  * months bubble up until they become years
+    // This is because there is no context-free conversion between hours and days
+    // (think of clock changes)
+    // and also not between days and months (28-31 days per month)
+    if (!this.isValid()) {
+        return this.localeData().invalidDate();
+    }
+
+    var seconds = abs$1(this._milliseconds) / 1000,
+        days = abs$1(this._days),
+        months = abs$1(this._months),
+        minutes,
+        hours,
+        years,
+        s,
+        total = this.asSeconds(),
+        totalSign,
+        ymSign,
+        daysSign,
+        hmsSign;
+
+    if (!total) {
+        // this is the same as C#'s (Noda) and python (isodate)...
+        // but not other JS (goog.date)
+        return 'P0D';
+    }
+
+    // 3600 seconds -> 60 minutes -> 1 hour
+    minutes = absFloor(seconds / 60);
+    hours = absFloor(minutes / 60);
+    seconds %= 60;
+    minutes %= 60;
+
+    // 12 months -> 1 year
+    years = absFloor(months / 12);
+    months %= 12;
+
+    // inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js
+    s = seconds ? seconds.toFixed(3).replace(/\.?0+$/, '') : '';
+
+    totalSign = total < 0 ? '-' : '';
+    ymSign = sign(this._months) !== sign(total) ? '-' : '';
+    daysSign = sign(this._days) !== sign(total) ? '-' : '';
+    hmsSign = sign(this._milliseconds) !== sign(total) ? '-' : '';
+
+    return (
+        totalSign +
+        'P' +
+        (years ? ymSign + years + 'Y' : '') +
+        (months ? ymSign + months + 'M' : '') +
+        (days ? daysSign + days + 'D' : '') +
+        (hours || minutes || seconds ? 'T' : '') +
+        (hours ? hmsSign + hours + 'H' : '') +
+        (minutes ? hmsSign + minutes + 'M' : '') +
+        (seconds ? hmsSign + s + 'S' : '')
+    );
+}
+
+var proto$2 = Duration.prototype;
+
+proto$2.isValid = isValid$1;
+proto$2.abs = abs;
+proto$2.add = add$1;
+proto$2.subtract = subtract$1;
+proto$2.as = as;
+proto$2.asMilliseconds = asMilliseconds;
+proto$2.asSeconds = asSeconds;
+proto$2.asMinutes = asMinutes;
+proto$2.asHours = asHours;
+proto$2.asDays = asDays;
+proto$2.asWeeks = asWeeks;
+proto$2.asMonths = asMonths;
+proto$2.asQuarters = asQuarters;
+proto$2.asYears = asYears;
+proto$2.valueOf = valueOf$1;
+proto$2._bubble = bubble;
+proto$2.clone = clone$1;
+proto$2.get = get$2;
+proto$2.milliseconds = milliseconds;
+proto$2.seconds = seconds;
+proto$2.minutes = minutes;
+proto$2.hours = hours;
+proto$2.days = days;
+proto$2.weeks = weeks;
+proto$2.months = months;
+proto$2.years = years;
+proto$2.humanize = humanize;
+proto$2.toISOString = toISOString$1;
+proto$2.toString = toISOString$1;
+proto$2.toJSON = toISOString$1;
+proto$2.locale = locale;
+proto$2.localeData = localeData;
+
+proto$2.toIsoString = deprecate(
+    'toIsoString() is deprecated. Please use toISOString() instead (notice the capitals)',
+    toISOString$1
+);
+proto$2.lang = lang;
+
+// FORMATTING
+
+addFormatToken('X', 0, 0, 'unix');
+addFormatToken('x', 0, 0, 'valueOf');
+
+// PARSING
+
+addRegexToken('x', matchSigned);
+addRegexToken('X', matchTimestamp);
+addParseToken('X', function (input, array, config) {
+    config._d = new Date(parseFloat(input) * 1000);
+});
+addParseToken('x', function (input, array, config) {
+    config._d = new Date(toInt(input));
+});
+
+//! moment.js
+
+hooks.version = '2.30.1';
+
+setHookCallback(createLocal);
+
+hooks.fn = proto;
+hooks.min = min;
+hooks.max = max;
+hooks.now = now;
+hooks.utc = createUTC;
+hooks.unix = createUnix;
+hooks.months = listMonths;
+hooks.isDate = isDate;
+hooks.locale = getSetGlobalLocale;
+hooks.invalid = createInvalid;
+hooks.duration = createDuration;
+hooks.isMoment = isMoment;
+hooks.weekdays = listWeekdays;
+hooks.parseZone = createInZone;
+hooks.localeData = getLocale;
+hooks.isDuration = isDuration;
+hooks.monthsShort = listMonthsShort;
+hooks.weekdaysMin = listWeekdaysMin;
+hooks.defineLocale = defineLocale;
+hooks.updateLocale = updateLocale;
+hooks.locales = listLocales;
+hooks.weekdaysShort = listWeekdaysShort;
+hooks.normalizeUnits = normalizeUnits;
+hooks.relativeTimeRounding = getSetRelativeTimeRounding;
+hooks.relativeTimeThreshold = getSetRelativeTimeThreshold;
+hooks.calendarFormat = getCalendarFormat;
+hooks.prototype = proto;
+
+// currently HTML5 input type only supports 24-hour formats
+hooks.HTML5_FMT = {
+    DATETIME_LOCAL: 'YYYY-MM-DDTHH:mm', // <input type="datetime-local" />
+    DATETIME_LOCAL_SECONDS: 'YYYY-MM-DDTHH:mm:ss', // <input type="datetime-local" step="1" />
+    DATETIME_LOCAL_MS: 'YYYY-MM-DDTHH:mm:ss.SSS', // <input type="datetime-local" step="0.001" />
+    DATE: 'YYYY-MM-DD', // <input type="date" />
+    TIME: 'HH:mm', // <input type="time" />
+    TIME_SECONDS: 'HH:mm:ss', // <input type="time" step="1" />
+    TIME_MS: 'HH:mm:ss.SSS', // <input type="time" step="0.001" />
+    WEEK: 'GGGG-[W]WW', // <input type="week" />
+    MONTH: 'YYYY-MM', // <input type="month" />
+};
+
+export default hooks;
diff --git a/backend/node_modules/moment/ender.js b/backend/node_modules/moment/ender.js
new file mode 100644
index 0000000..71462a7
--- /dev/null
+++ b/backend/node_modules/moment/ender.js
@@ -0,0 +1 @@
+$.ender({ moment: require('moment') })
diff --git a/backend/node_modules/moment/locale/af.js b/backend/node_modules/moment/locale/af.js
new file mode 100644
index 0000000..e77b15b
--- /dev/null
+++ b/backend/node_modules/moment/locale/af.js
@@ -0,0 +1,82 @@
+//! moment.js locale configuration
+//! locale : Afrikaans [af]
+//! author : Werner Mollentze : https://github.com/wernerm
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var af = moment.defineLocale('af', {
+        months: 'Januarie_Februarie_Maart_April_Mei_Junie_Julie_Augustus_September_Oktober_November_Desember'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mrt_Apr_Mei_Jun_Jul_Aug_Sep_Okt_Nov_Des'.split('_'),
+        weekdays: 'Sondag_Maandag_Dinsdag_Woensdag_Donderdag_Vrydag_Saterdag'.split(
+            '_'
+        ),
+        weekdaysShort: 'Son_Maa_Din_Woe_Don_Vry_Sat'.split('_'),
+        weekdaysMin: 'So_Ma_Di_Wo_Do_Vr_Sa'.split('_'),
+        meridiemParse: /vm|nm/i,
+        isPM: function (input) {
+            return /^nm$/i.test(input);
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 12) {
+                return isLower ? 'vm' : 'VM';
+            } else {
+                return isLower ? 'nm' : 'NM';
+            }
+        },
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Vandag om] LT',
+            nextDay: '[Môre om] LT',
+            nextWeek: 'dddd [om] LT',
+            lastDay: '[Gister om] LT',
+            lastWeek: '[Laas] dddd [om] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'oor %s',
+            past: '%s gelede',
+            s: "'n paar sekondes",
+            ss: '%d sekondes',
+            m: "'n minuut",
+            mm: '%d minute',
+            h: "'n uur",
+            hh: '%d ure',
+            d: "'n dag",
+            dd: '%d dae',
+            M: "'n maand",
+            MM: '%d maande',
+            y: "'n jaar",
+            yy: '%d jaar',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
+        ordinal: function (number) {
+            return (
+                number +
+                (number === 1 || number === 8 || number >= 20 ? 'ste' : 'de')
+            ); // Thanks to Joris Röling : https://github.com/jjupiter
+        },
+        week: {
+            dow: 1, // Maandag is die eerste dag van die week.
+            doy: 4, // Die week wat die 4de Januarie bevat is die eerste week van die jaar.
+        },
+    });
+
+    return af;
+
+})));
diff --git a/backend/node_modules/moment/locale/ar-dz.js b/backend/node_modules/moment/locale/ar-dz.js
new file mode 100644
index 0000000..8f9e149
--- /dev/null
+++ b/backend/node_modules/moment/locale/ar-dz.js
@@ -0,0 +1,167 @@
+//! moment.js locale configuration
+//! locale : Arabic (Algeria) [ar-dz]
+//! author : Amine Roukh: https://github.com/Amine27
+//! author : Abdel Said: https://github.com/abdelsaid
+//! author : Ahmed Elkhatib
+//! author : forabi https://github.com/forabi
+//! author : Noureddine LOUAHEDJ : https://github.com/noureddinem
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var pluralForm = function (n) {
+            return n === 0
+                ? 0
+                : n === 1
+                  ? 1
+                  : n === 2
+                    ? 2
+                    : n % 100 >= 3 && n % 100 <= 10
+                      ? 3
+                      : n % 100 >= 11
+                        ? 4
+                        : 5;
+        },
+        plurals = {
+            s: [
+                'أقل من ثانية',
+                'ثانية واحدة',
+                ['ثانيتان', 'ثانيتين'],
+                '%d ثوان',
+                '%d ثانية',
+                '%d ثانية',
+            ],
+            m: [
+                'أقل من دقيقة',
+                'دقيقة واحدة',
+                ['دقيقتان', 'دقيقتين'],
+                '%d دقائق',
+                '%d دقيقة',
+                '%d دقيقة',
+            ],
+            h: [
+                'أقل من ساعة',
+                'ساعة واحدة',
+                ['ساعتان', 'ساعتين'],
+                '%d ساعات',
+                '%d ساعة',
+                '%d ساعة',
+            ],
+            d: [
+                'أقل من يوم',
+                'يوم واحد',
+                ['يومان', 'يومين'],
+                '%d أيام',
+                '%d يومًا',
+                '%d يوم',
+            ],
+            M: [
+                'أقل من شهر',
+                'شهر واحد',
+                ['شهران', 'شهرين'],
+                '%d أشهر',
+                '%d شهرا',
+                '%d شهر',
+            ],
+            y: [
+                'أقل من عام',
+                'عام واحد',
+                ['عامان', 'عامين'],
+                '%d أعوام',
+                '%d عامًا',
+                '%d عام',
+            ],
+        },
+        pluralize = function (u) {
+            return function (number, withoutSuffix, string, isFuture) {
+                var f = pluralForm(number),
+                    str = plurals[u][pluralForm(number)];
+                if (f === 2) {
+                    str = str[withoutSuffix ? 0 : 1];
+                }
+                return str.replace(/%d/i, number);
+            };
+        },
+        months = [
+            'جانفي',
+            'فيفري',
+            'مارس',
+            'أفريل',
+            'ماي',
+            'جوان',
+            'جويلية',
+            'أوت',
+            'سبتمبر',
+            'أكتوبر',
+            'نوفمبر',
+            'ديسمبر',
+        ];
+
+    var arDz = moment.defineLocale('ar-dz', {
+        months: months,
+        monthsShort: months,
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'D/\u200FM/\u200FYYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ص|م/,
+        isPM: function (input) {
+            return 'م' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ص';
+            } else {
+                return 'م';
+            }
+        },
+        calendar: {
+            sameDay: '[اليوم عند الساعة] LT',
+            nextDay: '[غدًا عند الساعة] LT',
+            nextWeek: 'dddd [عند الساعة] LT',
+            lastDay: '[أمس عند الساعة] LT',
+            lastWeek: 'dddd [عند الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'بعد %s',
+            past: 'منذ %s',
+            s: pluralize('s'),
+            ss: pluralize('s'),
+            m: pluralize('m'),
+            mm: pluralize('m'),
+            h: pluralize('h'),
+            hh: pluralize('h'),
+            d: pluralize('d'),
+            dd: pluralize('d'),
+            M: pluralize('M'),
+            MM: pluralize('M'),
+            y: pluralize('y'),
+            yy: pluralize('y'),
+        },
+        postformat: function (string) {
+            return string.replace(/,/g, '،');
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return arDz;
+
+})));
diff --git a/backend/node_modules/moment/locale/ar-kw.js b/backend/node_modules/moment/locale/ar-kw.js
new file mode 100644
index 0000000..c6ecef8
--- /dev/null
+++ b/backend/node_modules/moment/locale/ar-kw.js
@@ -0,0 +1,66 @@
+//! moment.js locale configuration
+//! locale : Arabic (Kuwait) [ar-kw]
+//! author : Nusret Parlak: https://github.com/nusretparlak
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var arKw = moment.defineLocale('ar-kw', {
+        months: 'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split(
+            '_'
+        ),
+        monthsShort:
+            'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split(
+                '_'
+            ),
+        weekdays: 'الأحد_الإتنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'احد_اتنين_ثلاثاء_اربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[اليوم على الساعة] LT',
+            nextDay: '[غدا على الساعة] LT',
+            nextWeek: 'dddd [على الساعة] LT',
+            lastDay: '[أمس على الساعة] LT',
+            lastWeek: 'dddd [على الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'في %s',
+            past: 'منذ %s',
+            s: 'ثوان',
+            ss: '%d ثانية',
+            m: 'دقيقة',
+            mm: '%d دقائق',
+            h: 'ساعة',
+            hh: '%d ساعات',
+            d: 'يوم',
+            dd: '%d أيام',
+            M: 'شهر',
+            MM: '%d أشهر',
+            y: 'سنة',
+            yy: '%d سنوات',
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    return arKw;
+
+})));
diff --git a/backend/node_modules/moment/locale/ar-ly.js b/backend/node_modules/moment/locale/ar-ly.js
new file mode 100644
index 0000000..0ec9ec8
--- /dev/null
+++ b/backend/node_modules/moment/locale/ar-ly.js
@@ -0,0 +1,182 @@
+//! moment.js locale configuration
+//! locale : Arabic (Libya) [ar-ly]
+//! author : Ali Hmer: https://github.com/kikoanis
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var symbolMap = {
+            1: '1',
+            2: '2',
+            3: '3',
+            4: '4',
+            5: '5',
+            6: '6',
+            7: '7',
+            8: '8',
+            9: '9',
+            0: '0',
+        },
+        pluralForm = function (n) {
+            return n === 0
+                ? 0
+                : n === 1
+                  ? 1
+                  : n === 2
+                    ? 2
+                    : n % 100 >= 3 && n % 100 <= 10
+                      ? 3
+                      : n % 100 >= 11
+                        ? 4
+                        : 5;
+        },
+        plurals = {
+            s: [
+                'أقل من ثانية',
+                'ثانية واحدة',
+                ['ثانيتان', 'ثانيتين'],
+                '%d ثوان',
+                '%d ثانية',
+                '%d ثانية',
+            ],
+            m: [
+                'أقل من دقيقة',
+                'دقيقة واحدة',
+                ['دقيقتان', 'دقيقتين'],
+                '%d دقائق',
+                '%d دقيقة',
+                '%d دقيقة',
+            ],
+            h: [
+                'أقل من ساعة',
+                'ساعة واحدة',
+                ['ساعتان', 'ساعتين'],
+                '%d ساعات',
+                '%d ساعة',
+                '%d ساعة',
+            ],
+            d: [
+                'أقل من يوم',
+                'يوم واحد',
+                ['يومان', 'يومين'],
+                '%d أيام',
+                '%d يومًا',
+                '%d يوم',
+            ],
+            M: [
+                'أقل من شهر',
+                'شهر واحد',
+                ['شهران', 'شهرين'],
+                '%d أشهر',
+                '%d شهرا',
+                '%d شهر',
+            ],
+            y: [
+                'أقل من عام',
+                'عام واحد',
+                ['عامان', 'عامين'],
+                '%d أعوام',
+                '%d عامًا',
+                '%d عام',
+            ],
+        },
+        pluralize = function (u) {
+            return function (number, withoutSuffix, string, isFuture) {
+                var f = pluralForm(number),
+                    str = plurals[u][pluralForm(number)];
+                if (f === 2) {
+                    str = str[withoutSuffix ? 0 : 1];
+                }
+                return str.replace(/%d/i, number);
+            };
+        },
+        months = [
+            'يناير',
+            'فبراير',
+            'مارس',
+            'أبريل',
+            'مايو',
+            'يونيو',
+            'يوليو',
+            'أغسطس',
+            'سبتمبر',
+            'أكتوبر',
+            'نوفمبر',
+            'ديسمبر',
+        ];
+
+    var arLy = moment.defineLocale('ar-ly', {
+        months: months,
+        monthsShort: months,
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'D/\u200FM/\u200FYYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ص|م/,
+        isPM: function (input) {
+            return 'م' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ص';
+            } else {
+                return 'م';
+            }
+        },
+        calendar: {
+            sameDay: '[اليوم عند الساعة] LT',
+            nextDay: '[غدًا عند الساعة] LT',
+            nextWeek: 'dddd [عند الساعة] LT',
+            lastDay: '[أمس عند الساعة] LT',
+            lastWeek: 'dddd [عند الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'بعد %s',
+            past: 'منذ %s',
+            s: pluralize('s'),
+            ss: pluralize('s'),
+            m: pluralize('m'),
+            mm: pluralize('m'),
+            h: pluralize('h'),
+            hh: pluralize('h'),
+            d: pluralize('d'),
+            dd: pluralize('d'),
+            M: pluralize('M'),
+            MM: pluralize('M'),
+            y: pluralize('y'),
+            yy: pluralize('y'),
+        },
+        preparse: function (string) {
+            return string.replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string
+                .replace(/\d/g, function (match) {
+                    return symbolMap[match];
+                })
+                .replace(/,/g, '،');
+        },
+        week: {
+            dow: 6, // Saturday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    return arLy;
+
+})));
diff --git a/backend/node_modules/moment/locale/ar-ma.js b/backend/node_modules/moment/locale/ar-ma.js
new file mode 100644
index 0000000..11f061a
--- /dev/null
+++ b/backend/node_modules/moment/locale/ar-ma.js
@@ -0,0 +1,67 @@
+//! moment.js locale configuration
+//! locale : Arabic (Morocco) [ar-ma]
+//! author : ElFadili Yassine : https://github.com/ElFadiliY
+//! author : Abdel Said : https://github.com/abdelsaid
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var arMa = moment.defineLocale('ar-ma', {
+        months: 'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split(
+            '_'
+        ),
+        monthsShort:
+            'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split(
+                '_'
+            ),
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'احد_اثنين_ثلاثاء_اربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[اليوم على الساعة] LT',
+            nextDay: '[غدا على الساعة] LT',
+            nextWeek: 'dddd [على الساعة] LT',
+            lastDay: '[أمس على الساعة] LT',
+            lastWeek: 'dddd [على الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'في %s',
+            past: 'منذ %s',
+            s: 'ثوان',
+            ss: '%d ثانية',
+            m: 'دقيقة',
+            mm: '%d دقائق',
+            h: 'ساعة',
+            hh: '%d ساعات',
+            d: 'يوم',
+            dd: '%d أيام',
+            M: 'شهر',
+            MM: '%d أشهر',
+            y: 'سنة',
+            yy: '%d سنوات',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return arMa;
+
+})));
diff --git a/backend/node_modules/moment/locale/ar-ps.js b/backend/node_modules/moment/locale/ar-ps.js
new file mode 100644
index 0000000..4533bfa
--- /dev/null
+++ b/backend/node_modules/moment/locale/ar-ps.js
@@ -0,0 +1,123 @@
+//! moment.js locale configuration
+//! locale : Arabic (Palestine) [ar-ps]
+//! author : Majd Al-Shihabi : https://github.com/majdal
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var symbolMap = {
+            1: '١',
+            2: '٢',
+            3: '٣',
+            4: '٤',
+            5: '٥',
+            6: '٦',
+            7: '٧',
+            8: '٨',
+            9: '٩',
+            0: '٠',
+        },
+        numberMap = {
+            '١': '1',
+            '٢': '2',
+            '٣': '3',
+            '٤': '4',
+            '٥': '5',
+            '٦': '6',
+            '٧': '7',
+            '٨': '8',
+            '٩': '9',
+            '٠': '0',
+        };
+
+    var arPs = moment.defineLocale('ar-ps', {
+        months: 'كانون الثاني_شباط_آذار_نيسان_أيّار_حزيران_تمّوز_آب_أيلول_تشري الأوّل_تشرين الثاني_كانون الأوّل'.split(
+            '_'
+        ),
+        monthsShort:
+            'ك٢_شباط_آذار_نيسان_أيّار_حزيران_تمّوز_آب_أيلول_ت١_ت٢_ك١'.split('_'),
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ص|م/,
+        isPM: function (input) {
+            return 'م' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ص';
+            } else {
+                return 'م';
+            }
+        },
+        calendar: {
+            sameDay: '[اليوم على الساعة] LT',
+            nextDay: '[غدا على الساعة] LT',
+            nextWeek: 'dddd [على الساعة] LT',
+            lastDay: '[أمس على الساعة] LT',
+            lastWeek: 'dddd [على الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'في %s',
+            past: 'منذ %s',
+            s: 'ثوان',
+            ss: '%d ثانية',
+            m: 'دقيقة',
+            mm: '%d دقائق',
+            h: 'ساعة',
+            hh: '%d ساعات',
+            d: 'يوم',
+            dd: '%d أيام',
+            M: 'شهر',
+            MM: '%d أشهر',
+            y: 'سنة',
+            yy: '%d سنوات',
+        },
+        preparse: function (string) {
+            return string
+                .replace(/[٣٤٥٦٧٨٩٠]/g, function (match) {
+                    return numberMap[match];
+                })
+                .split('') // reversed since negative lookbehind not supported everywhere
+                .reverse()
+                .join('')
+                .replace(/[١٢](?![\u062a\u0643])/g, function (match) {
+                    return numberMap[match];
+                })
+                .split('')
+                .reverse()
+                .join('')
+                .replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string
+                .replace(/\d/g, function (match) {
+                    return symbolMap[match];
+                })
+                .replace(/,/g, '،');
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    return arPs;
+
+})));
diff --git a/backend/node_modules/moment/locale/ar-sa.js b/backend/node_modules/moment/locale/ar-sa.js
new file mode 100644
index 0000000..e329df0
--- /dev/null
+++ b/backend/node_modules/moment/locale/ar-sa.js
@@ -0,0 +1,116 @@
+//! moment.js locale configuration
+//! locale : Arabic (Saudi Arabia) [ar-sa]
+//! author : Suhail Alkowaileet : https://github.com/xsoh
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var symbolMap = {
+            1: '١',
+            2: '٢',
+            3: '٣',
+            4: '٤',
+            5: '٥',
+            6: '٦',
+            7: '٧',
+            8: '٨',
+            9: '٩',
+            0: '٠',
+        },
+        numberMap = {
+            '١': '1',
+            '٢': '2',
+            '٣': '3',
+            '٤': '4',
+            '٥': '5',
+            '٦': '6',
+            '٧': '7',
+            '٨': '8',
+            '٩': '9',
+            '٠': '0',
+        };
+
+    var arSa = moment.defineLocale('ar-sa', {
+        months: 'يناير_فبراير_مارس_أبريل_مايو_يونيو_يوليو_أغسطس_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split(
+            '_'
+        ),
+        monthsShort:
+            'يناير_فبراير_مارس_أبريل_مايو_يونيو_يوليو_أغسطس_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split(
+                '_'
+            ),
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ص|م/,
+        isPM: function (input) {
+            return 'م' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ص';
+            } else {
+                return 'م';
+            }
+        },
+        calendar: {
+            sameDay: '[اليوم على الساعة] LT',
+            nextDay: '[غدا على الساعة] LT',
+            nextWeek: 'dddd [على الساعة] LT',
+            lastDay: '[أمس على الساعة] LT',
+            lastWeek: 'dddd [على الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'في %s',
+            past: 'منذ %s',
+            s: 'ثوان',
+            ss: '%d ثانية',
+            m: 'دقيقة',
+            mm: '%d دقائق',
+            h: 'ساعة',
+            hh: '%d ساعات',
+            d: 'يوم',
+            dd: '%d أيام',
+            M: 'شهر',
+            MM: '%d أشهر',
+            y: 'سنة',
+            yy: '%d سنوات',
+        },
+        preparse: function (string) {
+            return string
+                .replace(/[١٢٣٤٥٦٧٨٩٠]/g, function (match) {
+                    return numberMap[match];
+                })
+                .replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string
+                .replace(/\d/g, function (match) {
+                    return symbolMap[match];
+                })
+                .replace(/,/g, '،');
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    return arSa;
+
+})));
diff --git a/backend/node_modules/moment/locale/ar-tn.js b/backend/node_modules/moment/locale/ar-tn.js
new file mode 100644
index 0000000..a390ed2
--- /dev/null
+++ b/backend/node_modules/moment/locale/ar-tn.js
@@ -0,0 +1,66 @@
+//! moment.js locale configuration
+//! locale  :  Arabic (Tunisia) [ar-tn]
+//! author : Nader Toukabri : https://github.com/naderio
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var arTn = moment.defineLocale('ar-tn', {
+        months: 'جانفي_فيفري_مارس_أفريل_ماي_جوان_جويلية_أوت_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split(
+            '_'
+        ),
+        monthsShort:
+            'جانفي_فيفري_مارس_أفريل_ماي_جوان_جويلية_أوت_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split(
+                '_'
+            ),
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[اليوم على الساعة] LT',
+            nextDay: '[غدا على الساعة] LT',
+            nextWeek: 'dddd [على الساعة] LT',
+            lastDay: '[أمس على الساعة] LT',
+            lastWeek: 'dddd [على الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'في %s',
+            past: 'منذ %s',
+            s: 'ثوان',
+            ss: '%d ثانية',
+            m: 'دقيقة',
+            mm: '%d دقائق',
+            h: 'ساعة',
+            hh: '%d ساعات',
+            d: 'يوم',
+            dd: '%d أيام',
+            M: 'شهر',
+            MM: '%d أشهر',
+            y: 'سنة',
+            yy: '%d سنوات',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return arTn;
+
+})));
diff --git a/backend/node_modules/moment/locale/ar.js b/backend/node_modules/moment/locale/ar.js
new file mode 100644
index 0000000..5bfb057
--- /dev/null
+++ b/backend/node_modules/moment/locale/ar.js
@@ -0,0 +1,200 @@
+//! moment.js locale configuration
+//! locale : Arabic [ar]
+//! author : Abdel Said: https://github.com/abdelsaid
+//! author : Ahmed Elkhatib
+//! author : forabi https://github.com/forabi
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var symbolMap = {
+            1: '١',
+            2: '٢',
+            3: '٣',
+            4: '٤',
+            5: '٥',
+            6: '٦',
+            7: '٧',
+            8: '٨',
+            9: '٩',
+            0: '٠',
+        },
+        numberMap = {
+            '١': '1',
+            '٢': '2',
+            '٣': '3',
+            '٤': '4',
+            '٥': '5',
+            '٦': '6',
+            '٧': '7',
+            '٨': '8',
+            '٩': '9',
+            '٠': '0',
+        },
+        pluralForm = function (n) {
+            return n === 0
+                ? 0
+                : n === 1
+                  ? 1
+                  : n === 2
+                    ? 2
+                    : n % 100 >= 3 && n % 100 <= 10
+                      ? 3
+                      : n % 100 >= 11
+                        ? 4
+                        : 5;
+        },
+        plurals = {
+            s: [
+                'أقل من ثانية',
+                'ثانية واحدة',
+                ['ثانيتان', 'ثانيتين'],
+                '%d ثوان',
+                '%d ثانية',
+                '%d ثانية',
+            ],
+            m: [
+                'أقل من دقيقة',
+                'دقيقة واحدة',
+                ['دقيقتان', 'دقيقتين'],
+                '%d دقائق',
+                '%d دقيقة',
+                '%d دقيقة',
+            ],
+            h: [
+                'أقل من ساعة',
+                'ساعة واحدة',
+                ['ساعتان', 'ساعتين'],
+                '%d ساعات',
+                '%d ساعة',
+                '%d ساعة',
+            ],
+            d: [
+                'أقل من يوم',
+                'يوم واحد',
+                ['يومان', 'يومين'],
+                '%d أيام',
+                '%d يومًا',
+                '%d يوم',
+            ],
+            M: [
+                'أقل من شهر',
+                'شهر واحد',
+                ['شهران', 'شهرين'],
+                '%d أشهر',
+                '%d شهرا',
+                '%d شهر',
+            ],
+            y: [
+                'أقل من عام',
+                'عام واحد',
+                ['عامان', 'عامين'],
+                '%d أعوام',
+                '%d عامًا',
+                '%d عام',
+            ],
+        },
+        pluralize = function (u) {
+            return function (number, withoutSuffix, string, isFuture) {
+                var f = pluralForm(number),
+                    str = plurals[u][pluralForm(number)];
+                if (f === 2) {
+                    str = str[withoutSuffix ? 0 : 1];
+                }
+                return str.replace(/%d/i, number);
+            };
+        },
+        months = [
+            'يناير',
+            'فبراير',
+            'مارس',
+            'أبريل',
+            'مايو',
+            'يونيو',
+            'يوليو',
+            'أغسطس',
+            'سبتمبر',
+            'أكتوبر',
+            'نوفمبر',
+            'ديسمبر',
+        ];
+
+    var ar = moment.defineLocale('ar', {
+        months: months,
+        monthsShort: months,
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'D/\u200FM/\u200FYYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ص|م/,
+        isPM: function (input) {
+            return 'م' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ص';
+            } else {
+                return 'م';
+            }
+        },
+        calendar: {
+            sameDay: '[اليوم عند الساعة] LT',
+            nextDay: '[غدًا عند الساعة] LT',
+            nextWeek: 'dddd [عند الساعة] LT',
+            lastDay: '[أمس عند الساعة] LT',
+            lastWeek: 'dddd [عند الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'بعد %s',
+            past: 'منذ %s',
+            s: pluralize('s'),
+            ss: pluralize('s'),
+            m: pluralize('m'),
+            mm: pluralize('m'),
+            h: pluralize('h'),
+            hh: pluralize('h'),
+            d: pluralize('d'),
+            dd: pluralize('d'),
+            M: pluralize('M'),
+            MM: pluralize('M'),
+            y: pluralize('y'),
+            yy: pluralize('y'),
+        },
+        preparse: function (string) {
+            return string
+                .replace(/[١٢٣٤٥٦٧٨٩٠]/g, function (match) {
+                    return numberMap[match];
+                })
+                .replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string
+                .replace(/\d/g, function (match) {
+                    return symbolMap[match];
+                })
+                .replace(/,/g, '،');
+        },
+        week: {
+            dow: 6, // Saturday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    return ar;
+
+})));
diff --git a/backend/node_modules/moment/locale/az.js b/backend/node_modules/moment/locale/az.js
new file mode 100644
index 0000000..472bee1
--- /dev/null
+++ b/backend/node_modules/moment/locale/az.js
@@ -0,0 +1,113 @@
+//! moment.js locale configuration
+//! locale : Azerbaijani [az]
+//! author : topchiyev : https://github.com/topchiyev
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var suffixes = {
+        1: '-inci',
+        5: '-inci',
+        8: '-inci',
+        70: '-inci',
+        80: '-inci',
+        2: '-nci',
+        7: '-nci',
+        20: '-nci',
+        50: '-nci',
+        3: '-üncü',
+        4: '-üncü',
+        100: '-üncü',
+        6: '-ncı',
+        9: '-uncu',
+        10: '-uncu',
+        30: '-uncu',
+        60: '-ıncı',
+        90: '-ıncı',
+    };
+
+    var az = moment.defineLocale('az', {
+        months: 'yanvar_fevral_mart_aprel_may_iyun_iyul_avqust_sentyabr_oktyabr_noyabr_dekabr'.split(
+            '_'
+        ),
+        monthsShort: 'yan_fev_mar_apr_may_iyn_iyl_avq_sen_okt_noy_dek'.split('_'),
+        weekdays:
+            'Bazar_Bazar ertəsi_Çərşənbə axşamı_Çərşənbə_Cümə axşamı_Cümə_Şənbə'.split(
+                '_'
+            ),
+        weekdaysShort: 'Baz_BzE_ÇAx_Çər_CAx_Cüm_Şən'.split('_'),
+        weekdaysMin: 'Bz_BE_ÇA_Çə_CA_Cü_Şə'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[bugün saat] LT',
+            nextDay: '[sabah saat] LT',
+            nextWeek: '[gələn həftə] dddd [saat] LT',
+            lastDay: '[dünən] LT',
+            lastWeek: '[keçən həftə] dddd [saat] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s sonra',
+            past: '%s əvvəl',
+            s: 'bir neçə saniyə',
+            ss: '%d saniyə',
+            m: 'bir dəqiqə',
+            mm: '%d dəqiqə',
+            h: 'bir saat',
+            hh: '%d saat',
+            d: 'bir gün',
+            dd: '%d gün',
+            M: 'bir ay',
+            MM: '%d ay',
+            y: 'bir il',
+            yy: '%d il',
+        },
+        meridiemParse: /gecə|səhər|gündüz|axşam/,
+        isPM: function (input) {
+            return /^(gündüz|axşam)$/.test(input);
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'gecə';
+            } else if (hour < 12) {
+                return 'səhər';
+            } else if (hour < 17) {
+                return 'gündüz';
+            } else {
+                return 'axşam';
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(ıncı|inci|nci|üncü|ncı|uncu)/,
+        ordinal: function (number) {
+            if (number === 0) {
+                // special case for zero
+                return number + '-ıncı';
+            }
+            var a = number % 10,
+                b = (number % 100) - a,
+                c = number >= 100 ? 100 : null;
+            return number + (suffixes[a] || suffixes[b] || suffixes[c]);
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    return az;
+
+})));
diff --git a/backend/node_modules/moment/locale/be.js b/backend/node_modules/moment/locale/be.js
new file mode 100644
index 0000000..fd7e772
--- /dev/null
+++ b/backend/node_modules/moment/locale/be.js
@@ -0,0 +1,153 @@
+//! moment.js locale configuration
+//! locale : Belarusian [be]
+//! author : Dmitry Demidov : https://github.com/demidov91
+//! author: Praleska: http://praleska.pro/
+//! Author : Menelion Elensúle : https://github.com/Oire
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    function plural(word, num) {
+        var forms = word.split('_');
+        return num % 10 === 1 && num % 100 !== 11
+            ? forms[0]
+            : num % 10 >= 2 && num % 10 <= 4 && (num % 100 < 10 || num % 100 >= 20)
+              ? forms[1]
+              : forms[2];
+    }
+    function relativeTimeWithPlural(number, withoutSuffix, key) {
+        var format = {
+            ss: withoutSuffix ? 'секунда_секунды_секунд' : 'секунду_секунды_секунд',
+            mm: withoutSuffix ? 'хвіліна_хвіліны_хвілін' : 'хвіліну_хвіліны_хвілін',
+            hh: withoutSuffix ? 'гадзіна_гадзіны_гадзін' : 'гадзіну_гадзіны_гадзін',
+            dd: 'дзень_дні_дзён',
+            MM: 'месяц_месяцы_месяцаў',
+            yy: 'год_гады_гадоў',
+        };
+        if (key === 'm') {
+            return withoutSuffix ? 'хвіліна' : 'хвіліну';
+        } else if (key === 'h') {
+            return withoutSuffix ? 'гадзіна' : 'гадзіну';
+        } else {
+            return number + ' ' + plural(format[key], +number);
+        }
+    }
+
+    var be = moment.defineLocale('be', {
+        months: {
+            format: 'студзеня_лютага_сакавіка_красавіка_траўня_чэрвеня_ліпеня_жніўня_верасня_кастрычніка_лістапада_снежня'.split(
+                '_'
+            ),
+            standalone:
+                'студзень_люты_сакавік_красавік_травень_чэрвень_ліпень_жнівень_верасень_кастрычнік_лістапад_снежань'.split(
+                    '_'
+                ),
+        },
+        monthsShort:
+            'студ_лют_сак_крас_трав_чэрв_ліп_жнів_вер_каст_ліст_снеж'.split('_'),
+        weekdays: {
+            format: 'нядзелю_панядзелак_аўторак_сераду_чацвер_пятніцу_суботу'.split(
+                '_'
+            ),
+            standalone:
+                'нядзеля_панядзелак_аўторак_серада_чацвер_пятніца_субота'.split(
+                    '_'
+                ),
+            isFormat: /\[ ?[Ууў] ?(?:мінулую|наступную)? ?\] ?dddd/,
+        },
+        weekdaysShort: 'нд_пн_ат_ср_чц_пт_сб'.split('_'),
+        weekdaysMin: 'нд_пн_ат_ср_чц_пт_сб'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY г.',
+            LLL: 'D MMMM YYYY г., HH:mm',
+            LLLL: 'dddd, D MMMM YYYY г., HH:mm',
+        },
+        calendar: {
+            sameDay: '[Сёння ў] LT',
+            nextDay: '[Заўтра ў] LT',
+            lastDay: '[Учора ў] LT',
+            nextWeek: function () {
+                return '[У] dddd [ў] LT';
+            },
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                    case 3:
+                    case 5:
+                    case 6:
+                        return '[У мінулую] dddd [ў] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                        return '[У мінулы] dddd [ў] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'праз %s',
+            past: '%s таму',
+            s: 'некалькі секунд',
+            m: relativeTimeWithPlural,
+            mm: relativeTimeWithPlural,
+            h: relativeTimeWithPlural,
+            hh: relativeTimeWithPlural,
+            d: 'дзень',
+            dd: relativeTimeWithPlural,
+            M: 'месяц',
+            MM: relativeTimeWithPlural,
+            y: 'год',
+            yy: relativeTimeWithPlural,
+        },
+        meridiemParse: /ночы|раніцы|дня|вечара/,
+        isPM: function (input) {
+            return /^(дня|вечара)$/.test(input);
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'ночы';
+            } else if (hour < 12) {
+                return 'раніцы';
+            } else if (hour < 17) {
+                return 'дня';
+            } else {
+                return 'вечара';
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(і|ы|га)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'M':
+                case 'd':
+                case 'DDD':
+                case 'w':
+                case 'W':
+                    return (number % 10 === 2 || number % 10 === 3) &&
+                        number % 100 !== 12 &&
+                        number % 100 !== 13
+                        ? number + '-і'
+                        : number + '-ы';
+                case 'D':
+                    return number + '-га';
+                default:
+                    return number;
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    return be;
+
+})));
diff --git a/backend/node_modules/moment/locale/bg.js b/backend/node_modules/moment/locale/bg.js
new file mode 100644
index 0000000..5a1bda8
--- /dev/null
+++ b/backend/node_modules/moment/locale/bg.js
@@ -0,0 +1,98 @@
+//! moment.js locale configuration
+//! locale : Bulgarian [bg]
+//! author : Krasen Borisov : https://github.com/kraz
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var bg = moment.defineLocale('bg', {
+        months: 'януари_февруари_март_април_май_юни_юли_август_септември_октомври_ноември_декември'.split(
+            '_'
+        ),
+        monthsShort: 'яну_фев_мар_апр_май_юни_юли_авг_сеп_окт_ное_дек'.split('_'),
+        weekdays: 'неделя_понеделник_вторник_сряда_четвъртък_петък_събота'.split(
+            '_'
+        ),
+        weekdaysShort: 'нед_пон_вто_сря_чет_пет_съб'.split('_'),
+        weekdaysMin: 'нд_пн_вт_ср_чт_пт_сб'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'D.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY H:mm',
+            LLLL: 'dddd, D MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[Днес в] LT',
+            nextDay: '[Утре в] LT',
+            nextWeek: 'dddd [в] LT',
+            lastDay: '[Вчера в] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                    case 3:
+                    case 6:
+                        return '[Миналата] dddd [в] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[Миналия] dddd [в] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'след %s',
+            past: 'преди %s',
+            s: 'няколко секунди',
+            ss: '%d секунди',
+            m: 'минута',
+            mm: '%d минути',
+            h: 'час',
+            hh: '%d часа',
+            d: 'ден',
+            dd: '%d дена',
+            w: 'седмица',
+            ww: '%d седмици',
+            M: 'месец',
+            MM: '%d месеца',
+            y: 'година',
+            yy: '%d години',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(ев|ен|ти|ви|ри|ми)/,
+        ordinal: function (number) {
+            var lastDigit = number % 10,
+                last2Digits = number % 100;
+            if (number === 0) {
+                return number + '-ев';
+            } else if (last2Digits === 0) {
+                return number + '-ен';
+            } else if (last2Digits > 10 && last2Digits < 20) {
+                return number + '-ти';
+            } else if (lastDigit === 1) {
+                return number + '-ви';
+            } else if (lastDigit === 2) {
+                return number + '-ри';
+            } else if (lastDigit === 7 || lastDigit === 8) {
+                return number + '-ми';
+            } else {
+                return number + '-ти';
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    return bg;
+
+})));
diff --git a/backend/node_modules/moment/locale/bm.js b/backend/node_modules/moment/locale/bm.js
new file mode 100644
index 0000000..302410c
--- /dev/null
+++ b/backend/node_modules/moment/locale/bm.js
@@ -0,0 +1,62 @@
+//! moment.js locale configuration
+//! locale : Bambara [bm]
+//! author : Estelle Comment : https://github.com/estellecomment
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var bm = moment.defineLocale('bm', {
+        months: 'Zanwuyekalo_Fewuruyekalo_Marisikalo_Awirilikalo_Mɛkalo_Zuwɛnkalo_Zuluyekalo_Utikalo_Sɛtanburukalo_ɔkutɔburukalo_Nowanburukalo_Desanburukalo'.split(
+            '_'
+        ),
+        monthsShort: 'Zan_Few_Mar_Awi_Mɛ_Zuw_Zul_Uti_Sɛt_ɔku_Now_Des'.split('_'),
+        weekdays: 'Kari_Ntɛnɛn_Tarata_Araba_Alamisa_Juma_Sibiri'.split('_'),
+        weekdaysShort: 'Kar_Ntɛ_Tar_Ara_Ala_Jum_Sib'.split('_'),
+        weekdaysMin: 'Ka_Nt_Ta_Ar_Al_Ju_Si'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'MMMM [tile] D [san] YYYY',
+            LLL: 'MMMM [tile] D [san] YYYY [lɛrɛ] HH:mm',
+            LLLL: 'dddd MMMM [tile] D [san] YYYY [lɛrɛ] HH:mm',
+        },
+        calendar: {
+            sameDay: '[Bi lɛrɛ] LT',
+            nextDay: '[Sini lɛrɛ] LT',
+            nextWeek: 'dddd [don lɛrɛ] LT',
+            lastDay: '[Kunu lɛrɛ] LT',
+            lastWeek: 'dddd [tɛmɛnen lɛrɛ] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s kɔnɔ',
+            past: 'a bɛ %s bɔ',
+            s: 'sanga dama dama',
+            ss: 'sekondi %d',
+            m: 'miniti kelen',
+            mm: 'miniti %d',
+            h: 'lɛrɛ kelen',
+            hh: 'lɛrɛ %d',
+            d: 'tile kelen',
+            dd: 'tile %d',
+            M: 'kalo kelen',
+            MM: 'kalo %d',
+            y: 'san kelen',
+            yy: 'san %d',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return bm;
+
+})));
diff --git a/backend/node_modules/moment/locale/bn-bd.js b/backend/node_modules/moment/locale/bn-bd.js
new file mode 100644
index 0000000..1154aa4
--- /dev/null
+++ b/backend/node_modules/moment/locale/bn-bd.js
@@ -0,0 +1,140 @@
+//! moment.js locale configuration
+//! locale : Bengali (Bangladesh) [bn-bd]
+//! author : Asraf Hossain Patoary : https://github.com/ashwoolford
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var symbolMap = {
+            1: '১',
+            2: '২',
+            3: '৩',
+            4: '৪',
+            5: '৫',
+            6: '৬',
+            7: '৭',
+            8: '৮',
+            9: '৯',
+            0: '০',
+        },
+        numberMap = {
+            '১': '1',
+            '২': '2',
+            '৩': '3',
+            '৪': '4',
+            '৫': '5',
+            '৬': '6',
+            '৭': '7',
+            '৮': '8',
+            '৯': '9',
+            '০': '0',
+        };
+
+    var bnBd = moment.defineLocale('bn-bd', {
+        months: 'জানুয়ারি_ফেব্রুয়ারি_মার্চ_এপ্রিল_মে_জুন_জুলাই_আগস্ট_সেপ্টেম্বর_অক্টোবর_নভেম্বর_ডিসেম্বর'.split(
+            '_'
+        ),
+        monthsShort:
+            'জানু_ফেব্রু_মার্চ_এপ্রিল_মে_জুন_জুলাই_আগস্ট_সেপ্ট_অক্টো_নভে_ডিসে'.split(
+                '_'
+            ),
+        weekdays: 'রবিবার_সোমবার_মঙ্গলবার_বুধবার_বৃহস্পতিবার_শুক্রবার_শনিবার'.split(
+            '_'
+        ),
+        weekdaysShort: 'রবি_সোম_মঙ্গল_বুধ_বৃহস্পতি_শুক্র_শনি'.split('_'),
+        weekdaysMin: 'রবি_সোম_মঙ্গল_বুধ_বৃহ_শুক্র_শনি'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm সময়',
+            LTS: 'A h:mm:ss সময়',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm সময়',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm সময়',
+        },
+        calendar: {
+            sameDay: '[আজ] LT',
+            nextDay: '[আগামীকাল] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[গতকাল] LT',
+            lastWeek: '[গত] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s পরে',
+            past: '%s আগে',
+            s: 'কয়েক সেকেন্ড',
+            ss: '%d সেকেন্ড',
+            m: 'এক মিনিট',
+            mm: '%d মিনিট',
+            h: 'এক ঘন্টা',
+            hh: '%d ঘন্টা',
+            d: 'এক দিন',
+            dd: '%d দিন',
+            M: 'এক মাস',
+            MM: '%d মাস',
+            y: 'এক বছর',
+            yy: '%d বছর',
+        },
+        preparse: function (string) {
+            return string.replace(/[১২৩৪৫৬৭৮৯০]/g, function (match) {
+                return numberMap[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap[match];
+            });
+        },
+
+        meridiemParse: /রাত|ভোর|সকাল|দুপুর|বিকাল|সন্ধ্যা|রাত/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'রাত') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'ভোর') {
+                return hour;
+            } else if (meridiem === 'সকাল') {
+                return hour;
+            } else if (meridiem === 'দুপুর') {
+                return hour >= 3 ? hour : hour + 12;
+            } else if (meridiem === 'বিকাল') {
+                return hour + 12;
+            } else if (meridiem === 'সন্ধ্যা') {
+                return hour + 12;
+            }
+        },
+
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'রাত';
+            } else if (hour < 6) {
+                return 'ভোর';
+            } else if (hour < 12) {
+                return 'সকাল';
+            } else if (hour < 15) {
+                return 'দুপুর';
+            } else if (hour < 18) {
+                return 'বিকাল';
+            } else if (hour < 20) {
+                return 'সন্ধ্যা';
+            } else {
+                return 'রাত';
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    return bnBd;
+
+})));
diff --git a/backend/node_modules/moment/locale/bn.js b/backend/node_modules/moment/locale/bn.js
new file mode 100644
index 0000000..e5e3e5f
--- /dev/null
+++ b/backend/node_modules/moment/locale/bn.js
@@ -0,0 +1,130 @@
+//! moment.js locale configuration
+//! locale : Bengali [bn]
+//! author : Kaushik Gandhi : https://github.com/kaushikgandhi
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var symbolMap = {
+            1: '১',
+            2: '২',
+            3: '৩',
+            4: '৪',
+            5: '৫',
+            6: '৬',
+            7: '৭',
+            8: '৮',
+            9: '৯',
+            0: '০',
+        },
+        numberMap = {
+            '১': '1',
+            '২': '2',
+            '৩': '3',
+            '৪': '4',
+            '৫': '5',
+            '৬': '6',
+            '৭': '7',
+            '৮': '8',
+            '৯': '9',
+            '০': '0',
+        };
+
+    var bn = moment.defineLocale('bn', {
+        months: 'জানুয়ারি_ফেব্রুয়ারি_মার্চ_এপ্রিল_মে_জুন_জুলাই_আগস্ট_সেপ্টেম্বর_অক্টোবর_নভেম্বর_ডিসেম্বর'.split(
+            '_'
+        ),
+        monthsShort:
+            'জানু_ফেব্রু_মার্চ_এপ্রিল_মে_জুন_জুলাই_আগস্ট_সেপ্ট_অক্টো_নভে_ডিসে'.split(
+                '_'
+            ),
+        weekdays: 'রবিবার_সোমবার_মঙ্গলবার_বুধবার_বৃহস্পতিবার_শুক্রবার_শনিবার'.split(
+            '_'
+        ),
+        weekdaysShort: 'রবি_সোম_মঙ্গল_বুধ_বৃহস্পতি_শুক্র_শনি'.split('_'),
+        weekdaysMin: 'রবি_সোম_মঙ্গল_বুধ_বৃহ_শুক্র_শনি'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm সময়',
+            LTS: 'A h:mm:ss সময়',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm সময়',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm সময়',
+        },
+        calendar: {
+            sameDay: '[আজ] LT',
+            nextDay: '[আগামীকাল] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[গতকাল] LT',
+            lastWeek: '[গত] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s পরে',
+            past: '%s আগে',
+            s: 'কয়েক সেকেন্ড',
+            ss: '%d সেকেন্ড',
+            m: 'এক মিনিট',
+            mm: '%d মিনিট',
+            h: 'এক ঘন্টা',
+            hh: '%d ঘন্টা',
+            d: 'এক দিন',
+            dd: '%d দিন',
+            M: 'এক মাস',
+            MM: '%d মাস',
+            y: 'এক বছর',
+            yy: '%d বছর',
+        },
+        preparse: function (string) {
+            return string.replace(/[১২৩৪৫৬৭৮৯০]/g, function (match) {
+                return numberMap[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap[match];
+            });
+        },
+        meridiemParse: /রাত|সকাল|দুপুর|বিকাল|রাত/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (
+                (meridiem === 'রাত' && hour >= 4) ||
+                (meridiem === 'দুপুর' && hour < 5) ||
+                meridiem === 'বিকাল'
+            ) {
+                return hour + 12;
+            } else {
+                return hour;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'রাত';
+            } else if (hour < 10) {
+                return 'সকাল';
+            } else if (hour < 17) {
+                return 'দুপুর';
+            } else if (hour < 20) {
+                return 'বিকাল';
+            } else {
+                return 'রাত';
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    return bn;
+
+})));
diff --git a/backend/node_modules/moment/locale/bo.js b/backend/node_modules/moment/locale/bo.js
new file mode 100644
index 0000000..c4a7c52
--- /dev/null
+++ b/backend/node_modules/moment/locale/bo.js
@@ -0,0 +1,135 @@
+//! moment.js locale configuration
+//! locale : Tibetan [bo]
+//! author : Thupten N. Chakrishar : https://github.com/vajradog
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var symbolMap = {
+            1: '༡',
+            2: '༢',
+            3: '༣',
+            4: '༤',
+            5: '༥',
+            6: '༦',
+            7: '༧',
+            8: '༨',
+            9: '༩',
+            0: '༠',
+        },
+        numberMap = {
+            '༡': '1',
+            '༢': '2',
+            '༣': '3',
+            '༤': '4',
+            '༥': '5',
+            '༦': '6',
+            '༧': '7',
+            '༨': '8',
+            '༩': '9',
+            '༠': '0',
+        };
+
+    var bo = moment.defineLocale('bo', {
+        months: 'ཟླ་བ་དང་པོ_ཟླ་བ་གཉིས་པ_ཟླ་བ་གསུམ་པ_ཟླ་བ་བཞི་པ_ཟླ་བ་ལྔ་པ_ཟླ་བ་དྲུག་པ_ཟླ་བ་བདུན་པ_ཟླ་བ་བརྒྱད་པ_ཟླ་བ་དགུ་པ_ཟླ་བ་བཅུ་པ_ཟླ་བ་བཅུ་གཅིག་པ_ཟླ་བ་བཅུ་གཉིས་པ'.split(
+            '_'
+        ),
+        monthsShort:
+            'ཟླ་1_ཟླ་2_ཟླ་3_ཟླ་4_ཟླ་5_ཟླ་6_ཟླ་7_ཟླ་8_ཟླ་9_ཟླ་10_ཟླ་11_ཟླ་12'.split(
+                '_'
+            ),
+        monthsShortRegex: /^(ཟླ་\d{1,2})/,
+        monthsParseExact: true,
+        weekdays:
+            'གཟའ་ཉི་མ་_གཟའ་ཟླ་བ་_གཟའ་མིག་དམར་_གཟའ་ལྷག་པ་_གཟའ་ཕུར་བུ_གཟའ་པ་སངས་_གཟའ་སྤེན་པ་'.split(
+                '_'
+            ),
+        weekdaysShort: 'ཉི་མ་_ཟླ་བ་_མིག་དམར་_ལྷག་པ་_ཕུར་བུ_པ་སངས་_སྤེན་པ་'.split(
+            '_'
+        ),
+        weekdaysMin: 'ཉི_ཟླ_མིག_ལྷག_ཕུར_སངས_སྤེན'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm',
+            LTS: 'A h:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm',
+        },
+        calendar: {
+            sameDay: '[དི་རིང] LT',
+            nextDay: '[སང་ཉིན] LT',
+            nextWeek: '[བདུན་ཕྲག་རྗེས་མ], LT',
+            lastDay: '[ཁ་སང] LT',
+            lastWeek: '[བདུན་ཕྲག་མཐའ་མ] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s ལ་',
+            past: '%s སྔན་ལ',
+            s: 'ལམ་སང',
+            ss: '%d སྐར་ཆ།',
+            m: 'སྐར་མ་གཅིག',
+            mm: '%d སྐར་མ',
+            h: 'ཆུ་ཚོད་གཅིག',
+            hh: '%d ཆུ་ཚོད',
+            d: 'ཉིན་གཅིག',
+            dd: '%d ཉིན་',
+            M: 'ཟླ་བ་གཅིག',
+            MM: '%d ཟླ་བ',
+            y: 'ལོ་གཅིག',
+            yy: '%d ལོ',
+        },
+        preparse: function (string) {
+            return string.replace(/[༡༢༣༤༥༦༧༨༩༠]/g, function (match) {
+                return numberMap[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap[match];
+            });
+        },
+        meridiemParse: /མཚན་མོ|ཞོགས་ཀས|ཉིན་གུང|དགོང་དག|མཚན་མོ/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (
+                (meridiem === 'མཚན་མོ' && hour >= 4) ||
+                (meridiem === 'ཉིན་གུང' && hour < 5) ||
+                meridiem === 'དགོང་དག'
+            ) {
+                return hour + 12;
+            } else {
+                return hour;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'མཚན་མོ';
+            } else if (hour < 10) {
+                return 'ཞོགས་ཀས';
+            } else if (hour < 17) {
+                return 'ཉིན་གུང';
+            } else if (hour < 20) {
+                return 'དགོང་དག';
+            } else {
+                return 'མཚན་མོ';
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    return bo;
+
+})));
diff --git a/backend/node_modules/moment/locale/br.js b/backend/node_modules/moment/locale/br.js
new file mode 100644
index 0000000..bd047fe
--- /dev/null
+++ b/backend/node_modules/moment/locale/br.js
@@ -0,0 +1,179 @@
+//! moment.js locale configuration
+//! locale : Breton [br]
+//! author : Jean-Baptiste Le Duigou : https://github.com/jbleduigou
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    function relativeTimeWithMutation(number, withoutSuffix, key) {
+        var format = {
+            mm: 'munutenn',
+            MM: 'miz',
+            dd: 'devezh',
+        };
+        return number + ' ' + mutation(format[key], number);
+    }
+    function specialMutationForYears(number) {
+        switch (lastNumber(number)) {
+            case 1:
+            case 3:
+            case 4:
+            case 5:
+            case 9:
+                return number + ' bloaz';
+            default:
+                return number + ' vloaz';
+        }
+    }
+    function lastNumber(number) {
+        if (number > 9) {
+            return lastNumber(number % 10);
+        }
+        return number;
+    }
+    function mutation(text, number) {
+        if (number === 2) {
+            return softMutation(text);
+        }
+        return text;
+    }
+    function softMutation(text) {
+        var mutationTable = {
+            m: 'v',
+            b: 'v',
+            d: 'z',
+        };
+        if (mutationTable[text.charAt(0)] === undefined) {
+            return text;
+        }
+        return mutationTable[text.charAt(0)] + text.substring(1);
+    }
+
+    var monthsParse = [
+            /^gen/i,
+            /^c[ʼ\']hwe/i,
+            /^meu/i,
+            /^ebr/i,
+            /^mae/i,
+            /^(mez|eve)/i,
+            /^gou/i,
+            /^eos/i,
+            /^gwe/i,
+            /^her/i,
+            /^du/i,
+            /^ker/i,
+        ],
+        monthsRegex =
+            /^(genver|c[ʼ\']hwevrer|meurzh|ebrel|mae|mezheven|gouere|eost|gwengolo|here|du|kerzu|gen|c[ʼ\']hwe|meu|ebr|mae|eve|gou|eos|gwe|her|du|ker)/i,
+        monthsStrictRegex =
+            /^(genver|c[ʼ\']hwevrer|meurzh|ebrel|mae|mezheven|gouere|eost|gwengolo|here|du|kerzu)/i,
+        monthsShortStrictRegex =
+            /^(gen|c[ʼ\']hwe|meu|ebr|mae|eve|gou|eos|gwe|her|du|ker)/i,
+        fullWeekdaysParse = [
+            /^sul/i,
+            /^lun/i,
+            /^meurzh/i,
+            /^merc[ʼ\']her/i,
+            /^yaou/i,
+            /^gwener/i,
+            /^sadorn/i,
+        ],
+        shortWeekdaysParse = [
+            /^Sul/i,
+            /^Lun/i,
+            /^Meu/i,
+            /^Mer/i,
+            /^Yao/i,
+            /^Gwe/i,
+            /^Sad/i,
+        ],
+        minWeekdaysParse = [
+            /^Su/i,
+            /^Lu/i,
+            /^Me([^r]|$)/i,
+            /^Mer/i,
+            /^Ya/i,
+            /^Gw/i,
+            /^Sa/i,
+        ];
+
+    var br = moment.defineLocale('br', {
+        months: 'Genver_Cʼhwevrer_Meurzh_Ebrel_Mae_Mezheven_Gouere_Eost_Gwengolo_Here_Du_Kerzu'.split(
+            '_'
+        ),
+        monthsShort: 'Gen_Cʼhwe_Meu_Ebr_Mae_Eve_Gou_Eos_Gwe_Her_Du_Ker'.split('_'),
+        weekdays: 'Sul_Lun_Meurzh_Mercʼher_Yaou_Gwener_Sadorn'.split('_'),
+        weekdaysShort: 'Sul_Lun_Meu_Mer_Yao_Gwe_Sad'.split('_'),
+        weekdaysMin: 'Su_Lu_Me_Mer_Ya_Gw_Sa'.split('_'),
+        weekdaysParse: minWeekdaysParse,
+        fullWeekdaysParse: fullWeekdaysParse,
+        shortWeekdaysParse: shortWeekdaysParse,
+        minWeekdaysParse: minWeekdaysParse,
+
+        monthsRegex: monthsRegex,
+        monthsShortRegex: monthsRegex,
+        monthsStrictRegex: monthsStrictRegex,
+        monthsShortStrictRegex: monthsShortStrictRegex,
+        monthsParse: monthsParse,
+        longMonthsParse: monthsParse,
+        shortMonthsParse: monthsParse,
+
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D [a viz] MMMM YYYY',
+            LLL: 'D [a viz] MMMM YYYY HH:mm',
+            LLLL: 'dddd, D [a viz] MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Hiziv da] LT',
+            nextDay: '[Warcʼhoazh da] LT',
+            nextWeek: 'dddd [da] LT',
+            lastDay: '[Decʼh da] LT',
+            lastWeek: 'dddd [paset da] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'a-benn %s',
+            past: '%s ʼzo',
+            s: 'un nebeud segondennoù',
+            ss: '%d eilenn',
+            m: 'ur vunutenn',
+            mm: relativeTimeWithMutation,
+            h: 'un eur',
+            hh: '%d eur',
+            d: 'un devezh',
+            dd: relativeTimeWithMutation,
+            M: 'ur miz',
+            MM: relativeTimeWithMutation,
+            y: 'ur bloaz',
+            yy: specialMutationForYears,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(añ|vet)/,
+        ordinal: function (number) {
+            var output = number === 1 ? 'añ' : 'vet';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+        meridiemParse: /a.m.|g.m./, // goude merenn | a-raok merenn
+        isPM: function (token) {
+            return token === 'g.m.';
+        },
+        meridiem: function (hour, minute, isLower) {
+            return hour < 12 ? 'a.m.' : 'g.m.';
+        },
+    });
+
+    return br;
+
+})));
diff --git a/backend/node_modules/moment/locale/bs.js b/backend/node_modules/moment/locale/bs.js
new file mode 100644
index 0000000..55a4d80
--- /dev/null
+++ b/backend/node_modules/moment/locale/bs.js
@@ -0,0 +1,171 @@
+//! moment.js locale configuration
+//! locale : Bosnian [bs]
+//! author : Nedim Cholich : https://github.com/frontyard
+//! author : Rasid Redzic : https://github.com/rasidre
+//! based on (hr) translation by Bojan Marković
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    function processRelativeTime(number, withoutSuffix, key, isFuture) {
+        switch (key) {
+            case 'm':
+                return withoutSuffix
+                    ? 'jedna minuta'
+                    : isFuture
+                      ? 'jednu minutu'
+                      : 'jedne minute';
+        }
+    }
+
+    function translate(number, withoutSuffix, key) {
+        var result = number + ' ';
+        switch (key) {
+            case 'ss':
+                if (number === 1) {
+                    result += 'sekunda';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'sekunde';
+                } else {
+                    result += 'sekundi';
+                }
+                return result;
+            case 'mm':
+                if (number === 1) {
+                    result += 'minuta';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'minute';
+                } else {
+                    result += 'minuta';
+                }
+                return result;
+            case 'h':
+                return withoutSuffix ? 'jedan sat' : 'jedan sat';
+            case 'hh':
+                if (number === 1) {
+                    result += 'sat';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'sata';
+                } else {
+                    result += 'sati';
+                }
+                return result;
+            case 'dd':
+                if (number === 1) {
+                    result += 'dan';
+                } else {
+                    result += 'dana';
+                }
+                return result;
+            case 'MM':
+                if (number === 1) {
+                    result += 'mjesec';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'mjeseca';
+                } else {
+                    result += 'mjeseci';
+                }
+                return result;
+            case 'yy':
+                if (number === 1) {
+                    result += 'godina';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'godine';
+                } else {
+                    result += 'godina';
+                }
+                return result;
+        }
+    }
+
+    var bs = moment.defineLocale('bs', {
+        months: 'januar_februar_mart_april_maj_juni_juli_august_septembar_oktobar_novembar_decembar'.split(
+            '_'
+        ),
+        monthsShort:
+            'jan._feb._mar._apr._maj._jun._jul._aug._sep._okt._nov._dec.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'nedjelja_ponedjeljak_utorak_srijeda_četvrtak_petak_subota'.split(
+            '_'
+        ),
+        weekdaysShort: 'ned._pon._uto._sri._čet._pet._sub.'.split('_'),
+        weekdaysMin: 'ne_po_ut_sr_če_pe_su'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY H:mm',
+            LLLL: 'dddd, D. MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[danas u] LT',
+            nextDay: '[sutra u] LT',
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[u] [nedjelju] [u] LT';
+                    case 3:
+                        return '[u] [srijedu] [u] LT';
+                    case 6:
+                        return '[u] [subotu] [u] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[u] dddd [u] LT';
+                }
+            },
+            lastDay: '[jučer u] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                    case 3:
+                        return '[prošlu] dddd [u] LT';
+                    case 6:
+                        return '[prošle] [subote] [u] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[prošli] dddd [u] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'za %s',
+            past: 'prije %s',
+            s: 'par sekundi',
+            ss: translate,
+            m: processRelativeTime,
+            mm: translate,
+            h: translate,
+            hh: translate,
+            d: 'dan',
+            dd: translate,
+            M: 'mjesec',
+            MM: translate,
+            y: 'godinu',
+            yy: translate,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    return bs;
+
+})));
diff --git a/backend/node_modules/moment/locale/ca.js b/backend/node_modules/moment/locale/ca.js
new file mode 100644
index 0000000..50f264c
--- /dev/null
+++ b/backend/node_modules/moment/locale/ca.js
@@ -0,0 +1,111 @@
+//! moment.js locale configuration
+//! locale : Catalan [ca]
+//! author : Juan G. Hurtado : https://github.com/juanghurtado
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var ca = moment.defineLocale('ca', {
+        months: {
+            standalone:
+                'gener_febrer_març_abril_maig_juny_juliol_agost_setembre_octubre_novembre_desembre'.split(
+                    '_'
+                ),
+            format: "de gener_de febrer_de març_d'abril_de maig_de juny_de juliol_d'agost_de setembre_d'octubre_de novembre_de desembre".split(
+                '_'
+            ),
+            isFormat: /D[oD]?(\s)+MMMM/,
+        },
+        monthsShort:
+            'gen._febr._març_abr._maig_juny_jul._ag._set._oct._nov._des.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays:
+            'diumenge_dilluns_dimarts_dimecres_dijous_divendres_dissabte'.split(
+                '_'
+            ),
+        weekdaysShort: 'dg._dl._dt._dc._dj._dv._ds.'.split('_'),
+        weekdaysMin: 'dg_dl_dt_dc_dj_dv_ds'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM [de] YYYY',
+            ll: 'D MMM YYYY',
+            LLL: 'D MMMM [de] YYYY [a les] H:mm',
+            lll: 'D MMM YYYY, H:mm',
+            LLLL: 'dddd D MMMM [de] YYYY [a les] H:mm',
+            llll: 'ddd D MMM YYYY, H:mm',
+        },
+        calendar: {
+            sameDay: function () {
+                return '[avui a ' + (this.hours() !== 1 ? 'les' : 'la') + '] LT';
+            },
+            nextDay: function () {
+                return '[demà a ' + (this.hours() !== 1 ? 'les' : 'la') + '] LT';
+            },
+            nextWeek: function () {
+                return 'dddd [a ' + (this.hours() !== 1 ? 'les' : 'la') + '] LT';
+            },
+            lastDay: function () {
+                return '[ahir a ' + (this.hours() !== 1 ? 'les' : 'la') + '] LT';
+            },
+            lastWeek: function () {
+                return (
+                    '[el] dddd [passat a ' +
+                    (this.hours() !== 1 ? 'les' : 'la') +
+                    '] LT'
+                );
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: "d'aquí %s",
+            past: 'fa %s',
+            s: 'uns segons',
+            ss: '%d segons',
+            m: 'un minut',
+            mm: '%d minuts',
+            h: 'una hora',
+            hh: '%d hores',
+            d: 'un dia',
+            dd: '%d dies',
+            M: 'un mes',
+            MM: '%d mesos',
+            y: 'un any',
+            yy: '%d anys',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(r|n|t|è|a)/,
+        ordinal: function (number, period) {
+            var output =
+                number === 1
+                    ? 'r'
+                    : number === 2
+                      ? 'n'
+                      : number === 3
+                        ? 'r'
+                        : number === 4
+                          ? 't'
+                          : 'è';
+            if (period === 'w' || period === 'W') {
+                output = 'a';
+            }
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return ca;
+
+})));
diff --git a/backend/node_modules/moment/locale/cs.js b/backend/node_modules/moment/locale/cs.js
new file mode 100644
index 0000000..7cd8832
--- /dev/null
+++ b/backend/node_modules/moment/locale/cs.js
@@ -0,0 +1,192 @@
+//! moment.js locale configuration
+//! locale : Czech [cs]
+//! author : petrbela : https://github.com/petrbela
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var months = {
+            standalone:
+                'leden_únor_březen_duben_květen_červen_červenec_srpen_září_říjen_listopad_prosinec'.split(
+                    '_'
+                ),
+            format: 'ledna_února_března_dubna_května_června_července_srpna_září_října_listopadu_prosince'.split(
+                '_'
+            ),
+            isFormat: /DD?[o.]?(\[[^\[\]]*\]|\s)+MMMM/,
+        },
+        monthsShort = 'led_úno_bře_dub_kvě_čvn_čvc_srp_zář_říj_lis_pro'.split('_'),
+        monthsParse = [
+            /^led/i,
+            /^úno/i,
+            /^bře/i,
+            /^dub/i,
+            /^kvě/i,
+            /^(čvn|červen$|června)/i,
+            /^(čvc|červenec|července)/i,
+            /^srp/i,
+            /^zář/i,
+            /^říj/i,
+            /^lis/i,
+            /^pro/i,
+        ],
+        // NOTE: 'červen' is substring of 'červenec'; therefore 'červenec' must precede 'červen' in the regex to be fully matched.
+        // Otherwise parser matches '1. červenec' as '1. červen' + 'ec'.
+        monthsRegex =
+            /^(leden|únor|březen|duben|květen|červenec|července|červen|června|srpen|září|říjen|listopad|prosinec|led|úno|bře|dub|kvě|čvn|čvc|srp|zář|říj|lis|pro)/i;
+
+    function plural(n) {
+        return n > 1 && n < 5 && ~~(n / 10) !== 1;
+    }
+    function translate(number, withoutSuffix, key, isFuture) {
+        var result = number + ' ';
+        switch (key) {
+            case 's': // a few seconds / in a few seconds / a few seconds ago
+                return withoutSuffix || isFuture ? 'pár sekund' : 'pár sekundami';
+            case 'ss': // 9 seconds / in 9 seconds / 9 seconds ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural(number) ? 'sekundy' : 'sekund');
+                } else {
+                    return result + 'sekundami';
+                }
+            case 'm': // a minute / in a minute / a minute ago
+                return withoutSuffix ? 'minuta' : isFuture ? 'minutu' : 'minutou';
+            case 'mm': // 9 minutes / in 9 minutes / 9 minutes ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural(number) ? 'minuty' : 'minut');
+                } else {
+                    return result + 'minutami';
+                }
+            case 'h': // an hour / in an hour / an hour ago
+                return withoutSuffix ? 'hodina' : isFuture ? 'hodinu' : 'hodinou';
+            case 'hh': // 9 hours / in 9 hours / 9 hours ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural(number) ? 'hodiny' : 'hodin');
+                } else {
+                    return result + 'hodinami';
+                }
+            case 'd': // a day / in a day / a day ago
+                return withoutSuffix || isFuture ? 'den' : 'dnem';
+            case 'dd': // 9 days / in 9 days / 9 days ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural(number) ? 'dny' : 'dní');
+                } else {
+                    return result + 'dny';
+                }
+            case 'M': // a month / in a month / a month ago
+                return withoutSuffix || isFuture ? 'měsíc' : 'měsícem';
+            case 'MM': // 9 months / in 9 months / 9 months ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural(number) ? 'měsíce' : 'měsíců');
+                } else {
+                    return result + 'měsíci';
+                }
+            case 'y': // a year / in a year / a year ago
+                return withoutSuffix || isFuture ? 'rok' : 'rokem';
+            case 'yy': // 9 years / in 9 years / 9 years ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural(number) ? 'roky' : 'let');
+                } else {
+                    return result + 'lety';
+                }
+        }
+    }
+
+    var cs = moment.defineLocale('cs', {
+        months: months,
+        monthsShort: monthsShort,
+        monthsRegex: monthsRegex,
+        monthsShortRegex: monthsRegex,
+        // NOTE: 'červen' is substring of 'červenec'; therefore 'červenec' must precede 'červen' in the regex to be fully matched.
+        // Otherwise parser matches '1. červenec' as '1. červen' + 'ec'.
+        monthsStrictRegex:
+            /^(leden|ledna|února|únor|březen|března|duben|dubna|květen|května|červenec|července|červen|června|srpen|srpna|září|říjen|října|listopadu|listopad|prosinec|prosince)/i,
+        monthsShortStrictRegex:
+            /^(led|úno|bře|dub|kvě|čvn|čvc|srp|zář|říj|lis|pro)/i,
+        monthsParse: monthsParse,
+        longMonthsParse: monthsParse,
+        shortMonthsParse: monthsParse,
+        weekdays: 'neděle_pondělí_úterý_středa_čtvrtek_pátek_sobota'.split('_'),
+        weekdaysShort: 'ne_po_út_st_čt_pá_so'.split('_'),
+        weekdaysMin: 'ne_po_út_st_čt_pá_so'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY H:mm',
+            LLLL: 'dddd D. MMMM YYYY H:mm',
+            l: 'D. M. YYYY',
+        },
+        calendar: {
+            sameDay: '[dnes v] LT',
+            nextDay: '[zítra v] LT',
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[v neděli v] LT';
+                    case 1:
+                    case 2:
+                        return '[v] dddd [v] LT';
+                    case 3:
+                        return '[ve středu v] LT';
+                    case 4:
+                        return '[ve čtvrtek v] LT';
+                    case 5:
+                        return '[v pátek v] LT';
+                    case 6:
+                        return '[v sobotu v] LT';
+                }
+            },
+            lastDay: '[včera v] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[minulou neděli v] LT';
+                    case 1:
+                    case 2:
+                        return '[minulé] dddd [v] LT';
+                    case 3:
+                        return '[minulou středu v] LT';
+                    case 4:
+                    case 5:
+                        return '[minulý] dddd [v] LT';
+                    case 6:
+                        return '[minulou sobotu v] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'za %s',
+            past: 'před %s',
+            s: translate,
+            ss: translate,
+            m: translate,
+            mm: translate,
+            h: translate,
+            hh: translate,
+            d: translate,
+            dd: translate,
+            M: translate,
+            MM: translate,
+            y: translate,
+            yy: translate,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return cs;
+
+})));
diff --git a/backend/node_modules/moment/locale/cv.js b/backend/node_modules/moment/locale/cv.js
new file mode 100644
index 0000000..6749d48
--- /dev/null
+++ b/backend/node_modules/moment/locale/cv.js
@@ -0,0 +1,74 @@
+//! moment.js locale configuration
+//! locale : Chuvash [cv]
+//! author : Anatoly Mironov : https://github.com/mirontoli
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var cv = moment.defineLocale('cv', {
+        months: 'кӑрлач_нарӑс_пуш_ака_май_ҫӗртме_утӑ_ҫурла_авӑн_юпа_чӳк_раштав'.split(
+            '_'
+        ),
+        monthsShort: 'кӑр_нар_пуш_ака_май_ҫӗр_утӑ_ҫур_авн_юпа_чӳк_раш'.split('_'),
+        weekdays:
+            'вырсарникун_тунтикун_ытларикун_юнкун_кӗҫнерникун_эрнекун_шӑматкун'.split(
+                '_'
+            ),
+        weekdaysShort: 'выр_тун_ытл_юн_кӗҫ_эрн_шӑм'.split('_'),
+        weekdaysMin: 'вр_тн_ыт_юн_кҫ_эр_шм'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD-MM-YYYY',
+            LL: 'YYYY [ҫулхи] MMMM [уйӑхӗн] D[-мӗшӗ]',
+            LLL: 'YYYY [ҫулхи] MMMM [уйӑхӗн] D[-мӗшӗ], HH:mm',
+            LLLL: 'dddd, YYYY [ҫулхи] MMMM [уйӑхӗн] D[-мӗшӗ], HH:mm',
+        },
+        calendar: {
+            sameDay: '[Паян] LT [сехетре]',
+            nextDay: '[Ыран] LT [сехетре]',
+            lastDay: '[Ӗнер] LT [сехетре]',
+            nextWeek: '[Ҫитес] dddd LT [сехетре]',
+            lastWeek: '[Иртнӗ] dddd LT [сехетре]',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: function (output) {
+                var affix = /сехет$/i.exec(output)
+                    ? 'рен'
+                    : /ҫул$/i.exec(output)
+                      ? 'тан'
+                      : 'ран';
+                return output + affix;
+            },
+            past: '%s каялла',
+            s: 'пӗр-ик ҫеккунт',
+            ss: '%d ҫеккунт',
+            m: 'пӗр минут',
+            mm: '%d минут',
+            h: 'пӗр сехет',
+            hh: '%d сехет',
+            d: 'пӗр кун',
+            dd: '%d кун',
+            M: 'пӗр уйӑх',
+            MM: '%d уйӑх',
+            y: 'пӗр ҫул',
+            yy: '%d ҫул',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-мӗш/,
+        ordinal: '%d-мӗш',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    return cv;
+
+})));
diff --git a/backend/node_modules/moment/locale/cy.js b/backend/node_modules/moment/locale/cy.js
new file mode 100644
index 0000000..3b987f2
--- /dev/null
+++ b/backend/node_modules/moment/locale/cy.js
@@ -0,0 +1,109 @@
+//! moment.js locale configuration
+//! locale : Welsh [cy]
+//! author : Robert Allen : https://github.com/robgallen
+//! author : https://github.com/ryangreaves
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var cy = moment.defineLocale('cy', {
+        months: 'Ionawr_Chwefror_Mawrth_Ebrill_Mai_Mehefin_Gorffennaf_Awst_Medi_Hydref_Tachwedd_Rhagfyr'.split(
+            '_'
+        ),
+        monthsShort: 'Ion_Chwe_Maw_Ebr_Mai_Meh_Gor_Aws_Med_Hyd_Tach_Rhag'.split(
+            '_'
+        ),
+        weekdays:
+            'Dydd Sul_Dydd Llun_Dydd Mawrth_Dydd Mercher_Dydd Iau_Dydd Gwener_Dydd Sadwrn'.split(
+                '_'
+            ),
+        weekdaysShort: 'Sul_Llun_Maw_Mer_Iau_Gwe_Sad'.split('_'),
+        weekdaysMin: 'Su_Ll_Ma_Me_Ia_Gw_Sa'.split('_'),
+        weekdaysParseExact: true,
+        // time formats are the same as en-gb
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Heddiw am] LT',
+            nextDay: '[Yfory am] LT',
+            nextWeek: 'dddd [am] LT',
+            lastDay: '[Ddoe am] LT',
+            lastWeek: 'dddd [diwethaf am] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'mewn %s',
+            past: '%s yn ôl',
+            s: 'ychydig eiliadau',
+            ss: '%d eiliad',
+            m: 'munud',
+            mm: '%d munud',
+            h: 'awr',
+            hh: '%d awr',
+            d: 'diwrnod',
+            dd: '%d diwrnod',
+            M: 'mis',
+            MM: '%d mis',
+            y: 'blwyddyn',
+            yy: '%d flynedd',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(fed|ain|af|il|ydd|ed|eg)/,
+        // traditional ordinal numbers above 31 are not commonly used in colloquial Welsh
+        ordinal: function (number) {
+            var b = number,
+                output = '',
+                lookup = [
+                    '',
+                    'af',
+                    'il',
+                    'ydd',
+                    'ydd',
+                    'ed',
+                    'ed',
+                    'ed',
+                    'fed',
+                    'fed',
+                    'fed', // 1af to 10fed
+                    'eg',
+                    'fed',
+                    'eg',
+                    'eg',
+                    'fed',
+                    'eg',
+                    'eg',
+                    'fed',
+                    'eg',
+                    'fed', // 11eg to 20fed
+                ];
+            if (b > 20) {
+                if (b === 40 || b === 50 || b === 60 || b === 80 || b === 100) {
+                    output = 'fed'; // not 30ain, 70ain or 90ain
+                } else {
+                    output = 'ain';
+                }
+            } else if (b > 0) {
+                output = lookup[b];
+            }
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return cy;
+
+})));
diff --git a/backend/node_modules/moment/locale/da.js b/backend/node_modules/moment/locale/da.js
new file mode 100644
index 0000000..2ed0583
--- /dev/null
+++ b/backend/node_modules/moment/locale/da.js
@@ -0,0 +1,64 @@
+//! moment.js locale configuration
+//! locale : Danish [da]
+//! author : Ulrik Nielsen : https://github.com/mrbase
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var da = moment.defineLocale('da', {
+        months: 'januar_februar_marts_april_maj_juni_juli_august_september_oktober_november_december'.split(
+            '_'
+        ),
+        monthsShort: 'jan_feb_mar_apr_maj_jun_jul_aug_sep_okt_nov_dec'.split('_'),
+        weekdays: 'søndag_mandag_tirsdag_onsdag_torsdag_fredag_lørdag'.split('_'),
+        weekdaysShort: 'søn_man_tir_ons_tor_fre_lør'.split('_'),
+        weekdaysMin: 'sø_ma_ti_on_to_fr_lø'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY HH:mm',
+            LLLL: 'dddd [d.] D. MMMM YYYY [kl.] HH:mm',
+        },
+        calendar: {
+            sameDay: '[i dag kl.] LT',
+            nextDay: '[i morgen kl.] LT',
+            nextWeek: 'på dddd [kl.] LT',
+            lastDay: '[i går kl.] LT',
+            lastWeek: '[i] dddd[s kl.] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'om %s',
+            past: '%s siden',
+            s: 'få sekunder',
+            ss: '%d sekunder',
+            m: 'et minut',
+            mm: '%d minutter',
+            h: 'en time',
+            hh: '%d timer',
+            d: 'en dag',
+            dd: '%d dage',
+            M: 'en måned',
+            MM: '%d måneder',
+            y: 'et år',
+            yy: '%d år',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return da;
+
+})));
diff --git a/backend/node_modules/moment/locale/de-at.js b/backend/node_modules/moment/locale/de-at.js
new file mode 100644
index 0000000..7c31302
--- /dev/null
+++ b/backend/node_modules/moment/locale/de-at.js
@@ -0,0 +1,90 @@
+//! moment.js locale configuration
+//! locale : German (Austria) [de-at]
+//! author : lluchs : https://github.com/lluchs
+//! author: Menelion Elensúle: https://github.com/Oire
+//! author : Martin Groller : https://github.com/MadMG
+//! author : Mikolaj Dadela : https://github.com/mik01aj
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    function processRelativeTime(number, withoutSuffix, key, isFuture) {
+        var format = {
+            m: ['eine Minute', 'einer Minute'],
+            h: ['eine Stunde', 'einer Stunde'],
+            d: ['ein Tag', 'einem Tag'],
+            dd: [number + ' Tage', number + ' Tagen'],
+            w: ['eine Woche', 'einer Woche'],
+            M: ['ein Monat', 'einem Monat'],
+            MM: [number + ' Monate', number + ' Monaten'],
+            y: ['ein Jahr', 'einem Jahr'],
+            yy: [number + ' Jahre', number + ' Jahren'],
+        };
+        return withoutSuffix ? format[key][0] : format[key][1];
+    }
+
+    var deAt = moment.defineLocale('de-at', {
+        months: 'Jänner_Februar_März_April_Mai_Juni_Juli_August_September_Oktober_November_Dezember'.split(
+            '_'
+        ),
+        monthsShort:
+            'Jän._Feb._März_Apr._Mai_Juni_Juli_Aug._Sep._Okt._Nov._Dez.'.split('_'),
+        monthsParseExact: true,
+        weekdays:
+            'Sonntag_Montag_Dienstag_Mittwoch_Donnerstag_Freitag_Samstag'.split(
+                '_'
+            ),
+        weekdaysShort: 'So._Mo._Di._Mi._Do._Fr._Sa.'.split('_'),
+        weekdaysMin: 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY HH:mm',
+            LLLL: 'dddd, D. MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[heute um] LT [Uhr]',
+            sameElse: 'L',
+            nextDay: '[morgen um] LT [Uhr]',
+            nextWeek: 'dddd [um] LT [Uhr]',
+            lastDay: '[gestern um] LT [Uhr]',
+            lastWeek: '[letzten] dddd [um] LT [Uhr]',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: 'vor %s',
+            s: 'ein paar Sekunden',
+            ss: '%d Sekunden',
+            m: processRelativeTime,
+            mm: '%d Minuten',
+            h: processRelativeTime,
+            hh: '%d Stunden',
+            d: processRelativeTime,
+            dd: processRelativeTime,
+            w: processRelativeTime,
+            ww: '%d Wochen',
+            M: processRelativeTime,
+            MM: processRelativeTime,
+            y: processRelativeTime,
+            yy: processRelativeTime,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return deAt;
+
+})));
diff --git a/backend/node_modules/moment/locale/de-ch.js b/backend/node_modules/moment/locale/de-ch.js
new file mode 100644
index 0000000..10fed17
--- /dev/null
+++ b/backend/node_modules/moment/locale/de-ch.js
@@ -0,0 +1,87 @@
+//! moment.js locale configuration
+//! locale : German (Switzerland) [de-ch]
+//! author : sschueller : https://github.com/sschueller
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    function processRelativeTime(number, withoutSuffix, key, isFuture) {
+        var format = {
+            m: ['eine Minute', 'einer Minute'],
+            h: ['eine Stunde', 'einer Stunde'],
+            d: ['ein Tag', 'einem Tag'],
+            dd: [number + ' Tage', number + ' Tagen'],
+            w: ['eine Woche', 'einer Woche'],
+            M: ['ein Monat', 'einem Monat'],
+            MM: [number + ' Monate', number + ' Monaten'],
+            y: ['ein Jahr', 'einem Jahr'],
+            yy: [number + ' Jahre', number + ' Jahren'],
+        };
+        return withoutSuffix ? format[key][0] : format[key][1];
+    }
+
+    var deCh = moment.defineLocale('de-ch', {
+        months: 'Januar_Februar_März_April_Mai_Juni_Juli_August_September_Oktober_November_Dezember'.split(
+            '_'
+        ),
+        monthsShort:
+            'Jan._Feb._März_Apr._Mai_Juni_Juli_Aug._Sep._Okt._Nov._Dez.'.split('_'),
+        monthsParseExact: true,
+        weekdays:
+            'Sonntag_Montag_Dienstag_Mittwoch_Donnerstag_Freitag_Samstag'.split(
+                '_'
+            ),
+        weekdaysShort: 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
+        weekdaysMin: 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY HH:mm',
+            LLLL: 'dddd, D. MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[heute um] LT [Uhr]',
+            sameElse: 'L',
+            nextDay: '[morgen um] LT [Uhr]',
+            nextWeek: 'dddd [um] LT [Uhr]',
+            lastDay: '[gestern um] LT [Uhr]',
+            lastWeek: '[letzten] dddd [um] LT [Uhr]',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: 'vor %s',
+            s: 'ein paar Sekunden',
+            ss: '%d Sekunden',
+            m: processRelativeTime,
+            mm: '%d Minuten',
+            h: processRelativeTime,
+            hh: '%d Stunden',
+            d: processRelativeTime,
+            dd: processRelativeTime,
+            w: processRelativeTime,
+            ww: '%d Wochen',
+            M: processRelativeTime,
+            MM: processRelativeTime,
+            y: processRelativeTime,
+            yy: processRelativeTime,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return deCh;
+
+})));
diff --git a/backend/node_modules/moment/locale/de.js b/backend/node_modules/moment/locale/de.js
new file mode 100644
index 0000000..cc061eb
--- /dev/null
+++ b/backend/node_modules/moment/locale/de.js
@@ -0,0 +1,89 @@
+//! moment.js locale configuration
+//! locale : German [de]
+//! author : lluchs : https://github.com/lluchs
+//! author: Menelion Elensúle: https://github.com/Oire
+//! author : Mikolaj Dadela : https://github.com/mik01aj
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    function processRelativeTime(number, withoutSuffix, key, isFuture) {
+        var format = {
+            m: ['eine Minute', 'einer Minute'],
+            h: ['eine Stunde', 'einer Stunde'],
+            d: ['ein Tag', 'einem Tag'],
+            dd: [number + ' Tage', number + ' Tagen'],
+            w: ['eine Woche', 'einer Woche'],
+            M: ['ein Monat', 'einem Monat'],
+            MM: [number + ' Monate', number + ' Monaten'],
+            y: ['ein Jahr', 'einem Jahr'],
+            yy: [number + ' Jahre', number + ' Jahren'],
+        };
+        return withoutSuffix ? format[key][0] : format[key][1];
+    }
+
+    var de = moment.defineLocale('de', {
+        months: 'Januar_Februar_März_April_Mai_Juni_Juli_August_September_Oktober_November_Dezember'.split(
+            '_'
+        ),
+        monthsShort:
+            'Jan._Feb._März_Apr._Mai_Juni_Juli_Aug._Sep._Okt._Nov._Dez.'.split('_'),
+        monthsParseExact: true,
+        weekdays:
+            'Sonntag_Montag_Dienstag_Mittwoch_Donnerstag_Freitag_Samstag'.split(
+                '_'
+            ),
+        weekdaysShort: 'So._Mo._Di._Mi._Do._Fr._Sa.'.split('_'),
+        weekdaysMin: 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY HH:mm',
+            LLLL: 'dddd, D. MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[heute um] LT [Uhr]',
+            sameElse: 'L',
+            nextDay: '[morgen um] LT [Uhr]',
+            nextWeek: 'dddd [um] LT [Uhr]',
+            lastDay: '[gestern um] LT [Uhr]',
+            lastWeek: '[letzten] dddd [um] LT [Uhr]',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: 'vor %s',
+            s: 'ein paar Sekunden',
+            ss: '%d Sekunden',
+            m: processRelativeTime,
+            mm: '%d Minuten',
+            h: processRelativeTime,
+            hh: '%d Stunden',
+            d: processRelativeTime,
+            dd: processRelativeTime,
+            w: processRelativeTime,
+            ww: '%d Wochen',
+            M: processRelativeTime,
+            MM: processRelativeTime,
+            y: processRelativeTime,
+            yy: processRelativeTime,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return de;
+
+})));
diff --git a/backend/node_modules/moment/locale/dv.js b/backend/node_modules/moment/locale/dv.js
new file mode 100644
index 0000000..e6cc8f6
--- /dev/null
+++ b/backend/node_modules/moment/locale/dv.js
@@ -0,0 +1,101 @@
+//! moment.js locale configuration
+//! locale : Maldivian [dv]
+//! author : Jawish Hameed : https://github.com/jawish
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var months = [
+            'ޖެނުއަރީ',
+            'ފެބްރުއަރީ',
+            'މާރިޗު',
+            'އޭޕްރީލު',
+            'މޭ',
+            'ޖޫން',
+            'ޖުލައި',
+            'އޯގަސްޓު',
+            'ސެޕްޓެމްބަރު',
+            'އޮކްޓޯބަރު',
+            'ނޮވެމްބަރު',
+            'ޑިސެމްބަރު',
+        ],
+        weekdays = [
+            'އާދިއްތަ',
+            'ހޯމަ',
+            'އަންގާރަ',
+            'ބުދަ',
+            'ބުރާސްފަތި',
+            'ހުކުރު',
+            'ހޮނިހިރު',
+        ];
+
+    var dv = moment.defineLocale('dv', {
+        months: months,
+        monthsShort: months,
+        weekdays: weekdays,
+        weekdaysShort: weekdays,
+        weekdaysMin: 'އާދި_ހޯމަ_އަން_ބުދަ_ބުރާ_ހުކު_ހޮނި'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'D/M/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /މކ|މފ/,
+        isPM: function (input) {
+            return 'މފ' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'މކ';
+            } else {
+                return 'މފ';
+            }
+        },
+        calendar: {
+            sameDay: '[މިއަދު] LT',
+            nextDay: '[މާދަމާ] LT',
+            nextWeek: 'dddd LT',
+            lastDay: '[އިއްޔެ] LT',
+            lastWeek: '[ފާއިތުވި] dddd LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'ތެރޭގައި %s',
+            past: 'ކުރިން %s',
+            s: 'ސިކުންތުކޮޅެއް',
+            ss: 'd% ސިކުންތު',
+            m: 'މިނިޓެއް',
+            mm: 'މިނިޓު %d',
+            h: 'ގަޑިއިރެއް',
+            hh: 'ގަޑިއިރު %d',
+            d: 'ދުވަހެއް',
+            dd: 'ދުވަސް %d',
+            M: 'މަހެއް',
+            MM: 'މަސް %d',
+            y: 'އަހަރެއް',
+            yy: 'އަހަރު %d',
+        },
+        preparse: function (string) {
+            return string.replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string.replace(/,/g, '،');
+        },
+        week: {
+            dow: 7, // Sunday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    return dv;
+
+})));
diff --git a/backend/node_modules/moment/locale/el.js b/backend/node_modules/moment/locale/el.js
new file mode 100644
index 0000000..a147859
--- /dev/null
+++ b/backend/node_modules/moment/locale/el.js
@@ -0,0 +1,117 @@
+//! moment.js locale configuration
+//! locale : Greek [el]
+//! author : Aggelos Karalias : https://github.com/mehiel
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    function isFunction(input) {
+        return (
+            (typeof Function !== 'undefined' && input instanceof Function) ||
+            Object.prototype.toString.call(input) === '[object Function]'
+        );
+    }
+
+    var el = moment.defineLocale('el', {
+        monthsNominativeEl:
+            'Ιανουάριος_Φεβρουάριος_Μάρτιος_Απρίλιος_Μάιος_Ιούνιος_Ιούλιος_Αύγουστος_Σεπτέμβριος_Οκτώβριος_Νοέμβριος_Δεκέμβριος'.split(
+                '_'
+            ),
+        monthsGenitiveEl:
+            'Ιανουαρίου_Φεβρουαρίου_Μαρτίου_Απριλίου_Μαΐου_Ιουνίου_Ιουλίου_Αυγούστου_Σεπτεμβρίου_Οκτωβρίου_Νοεμβρίου_Δεκεμβρίου'.split(
+                '_'
+            ),
+        months: function (momentToFormat, format) {
+            if (!momentToFormat) {
+                return this._monthsNominativeEl;
+            } else if (
+                typeof format === 'string' &&
+                /D/.test(format.substring(0, format.indexOf('MMMM')))
+            ) {
+                // if there is a day number before 'MMMM'
+                return this._monthsGenitiveEl[momentToFormat.month()];
+            } else {
+                return this._monthsNominativeEl[momentToFormat.month()];
+            }
+        },
+        monthsShort: 'Ιαν_Φεβ_Μαρ_Απρ_Μαϊ_Ιουν_Ιουλ_Αυγ_Σεπ_Οκτ_Νοε_Δεκ'.split('_'),
+        weekdays: 'Κυριακή_Δευτέρα_Τρίτη_Τετάρτη_Πέμπτη_Παρασκευή_Σάββατο'.split(
+            '_'
+        ),
+        weekdaysShort: 'Κυρ_Δευ_Τρι_Τετ_Πεμ_Παρ_Σαβ'.split('_'),
+        weekdaysMin: 'Κυ_Δε_Τρ_Τε_Πε_Πα_Σα'.split('_'),
+        meridiem: function (hours, minutes, isLower) {
+            if (hours > 11) {
+                return isLower ? 'μμ' : 'ΜΜ';
+            } else {
+                return isLower ? 'πμ' : 'ΠΜ';
+            }
+        },
+        isPM: function (input) {
+            return (input + '').toLowerCase()[0] === 'μ';
+        },
+        meridiemParse: /[ΠΜ]\.?Μ?\.?/i,
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY h:mm A',
+            LLLL: 'dddd, D MMMM YYYY h:mm A',
+        },
+        calendarEl: {
+            sameDay: '[Σήμερα {}] LT',
+            nextDay: '[Αύριο {}] LT',
+            nextWeek: 'dddd [{}] LT',
+            lastDay: '[Χθες {}] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 6:
+                        return '[το προηγούμενο] dddd [{}] LT';
+                    default:
+                        return '[την προηγούμενη] dddd [{}] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        calendar: function (key, mom) {
+            var output = this._calendarEl[key],
+                hours = mom && mom.hours();
+            if (isFunction(output)) {
+                output = output.apply(mom);
+            }
+            return output.replace('{}', hours % 12 === 1 ? 'στη' : 'στις');
+        },
+        relativeTime: {
+            future: 'σε %s',
+            past: '%s πριν',
+            s: 'λίγα δευτερόλεπτα',
+            ss: '%d δευτερόλεπτα',
+            m: 'ένα λεπτό',
+            mm: '%d λεπτά',
+            h: 'μία ώρα',
+            hh: '%d ώρες',
+            d: 'μία μέρα',
+            dd: '%d μέρες',
+            M: 'ένας μήνας',
+            MM: '%d μήνες',
+            y: 'ένας χρόνος',
+            yy: '%d χρόνια',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}η/,
+        ordinal: '%dη',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4st is the first week of the year.
+        },
+    });
+
+    return el;
+
+})));
diff --git a/backend/node_modules/moment/locale/en-au.js b/backend/node_modules/moment/locale/en-au.js
new file mode 100644
index 0000000..869f51d
--- /dev/null
+++ b/backend/node_modules/moment/locale/en-au.js
@@ -0,0 +1,79 @@
+//! moment.js locale configuration
+//! locale : English (Australia) [en-au]
+//! author : Jared Morse : https://github.com/jarcoal
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var enAu = moment.defineLocale('en-au', {
+        months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY h:mm A',
+            LLLL: 'dddd, D MMMM YYYY h:mm A',
+        },
+        calendar: {
+            sameDay: '[Today at] LT',
+            nextDay: '[Tomorrow at] LT',
+            nextWeek: 'dddd [at] LT',
+            lastDay: '[Yesterday at] LT',
+            lastWeek: '[Last] dddd [at] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: '%s ago',
+            s: 'a few seconds',
+            ss: '%d seconds',
+            m: 'a minute',
+            mm: '%d minutes',
+            h: 'an hour',
+            hh: '%d hours',
+            d: 'a day',
+            dd: '%d days',
+            M: 'a month',
+            MM: '%d months',
+            y: 'a year',
+            yy: '%d years',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return enAu;
+
+})));
diff --git a/backend/node_modules/moment/locale/en-ca.js b/backend/node_modules/moment/locale/en-ca.js
new file mode 100644
index 0000000..29a3390
--- /dev/null
+++ b/backend/node_modules/moment/locale/en-ca.js
@@ -0,0 +1,75 @@
+//! moment.js locale configuration
+//! locale : English (Canada) [en-ca]
+//! author : Jonathan Abourbih : https://github.com/jonbca
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var enCa = moment.defineLocale('en-ca', {
+        months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'YYYY-MM-DD',
+            LL: 'MMMM D, YYYY',
+            LLL: 'MMMM D, YYYY h:mm A',
+            LLLL: 'dddd, MMMM D, YYYY h:mm A',
+        },
+        calendar: {
+            sameDay: '[Today at] LT',
+            nextDay: '[Tomorrow at] LT',
+            nextWeek: 'dddd [at] LT',
+            lastDay: '[Yesterday at] LT',
+            lastWeek: '[Last] dddd [at] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: '%s ago',
+            s: 'a few seconds',
+            ss: '%d seconds',
+            m: 'a minute',
+            mm: '%d minutes',
+            h: 'an hour',
+            hh: '%d hours',
+            d: 'a day',
+            dd: '%d days',
+            M: 'a month',
+            MM: '%d months',
+            y: 'a year',
+            yy: '%d years',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+    });
+
+    return enCa;
+
+})));
diff --git a/backend/node_modules/moment/locale/en-gb.js b/backend/node_modules/moment/locale/en-gb.js
new file mode 100644
index 0000000..a159749
--- /dev/null
+++ b/backend/node_modules/moment/locale/en-gb.js
@@ -0,0 +1,79 @@
+//! moment.js locale configuration
+//! locale : English (United Kingdom) [en-gb]
+//! author : Chris Gedrim : https://github.com/chrisgedrim
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var enGb = moment.defineLocale('en-gb', {
+        months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Today at] LT',
+            nextDay: '[Tomorrow at] LT',
+            nextWeek: 'dddd [at] LT',
+            lastDay: '[Yesterday at] LT',
+            lastWeek: '[Last] dddd [at] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: '%s ago',
+            s: 'a few seconds',
+            ss: '%d seconds',
+            m: 'a minute',
+            mm: '%d minutes',
+            h: 'an hour',
+            hh: '%d hours',
+            d: 'a day',
+            dd: '%d days',
+            M: 'a month',
+            MM: '%d months',
+            y: 'a year',
+            yy: '%d years',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return enGb;
+
+})));
diff --git a/backend/node_modules/moment/locale/en-ie.js b/backend/node_modules/moment/locale/en-ie.js
new file mode 100644
index 0000000..bbde281
--- /dev/null
+++ b/backend/node_modules/moment/locale/en-ie.js
@@ -0,0 +1,79 @@
+//! moment.js locale configuration
+//! locale : English (Ireland) [en-ie]
+//! author : Chris Cartlidge : https://github.com/chriscartlidge
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var enIe = moment.defineLocale('en-ie', {
+        months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Today at] LT',
+            nextDay: '[Tomorrow at] LT',
+            nextWeek: 'dddd [at] LT',
+            lastDay: '[Yesterday at] LT',
+            lastWeek: '[Last] dddd [at] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: '%s ago',
+            s: 'a few seconds',
+            ss: '%d seconds',
+            m: 'a minute',
+            mm: '%d minutes',
+            h: 'an hour',
+            hh: '%d hours',
+            d: 'a day',
+            dd: '%d days',
+            M: 'a month',
+            MM: '%d months',
+            y: 'a year',
+            yy: '%d years',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return enIe;
+
+})));
diff --git a/backend/node_modules/moment/locale/en-il.js b/backend/node_modules/moment/locale/en-il.js
new file mode 100644
index 0000000..c9c567a
--- /dev/null
+++ b/backend/node_modules/moment/locale/en-il.js
@@ -0,0 +1,75 @@
+//! moment.js locale configuration
+//! locale : English (Israel) [en-il]
+//! author : Chris Gedrim : https://github.com/chrisgedrim
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var enIl = moment.defineLocale('en-il', {
+        months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Today at] LT',
+            nextDay: '[Tomorrow at] LT',
+            nextWeek: 'dddd [at] LT',
+            lastDay: '[Yesterday at] LT',
+            lastWeek: '[Last] dddd [at] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: '%s ago',
+            s: 'a few seconds',
+            ss: '%d seconds',
+            m: 'a minute',
+            mm: '%d minutes',
+            h: 'an hour',
+            hh: '%d hours',
+            d: 'a day',
+            dd: '%d days',
+            M: 'a month',
+            MM: '%d months',
+            y: 'a year',
+            yy: '%d years',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+    });
+
+    return enIl;
+
+})));
diff --git a/backend/node_modules/moment/locale/en-in.js b/backend/node_modules/moment/locale/en-in.js
new file mode 100644
index 0000000..c10fb4b
--- /dev/null
+++ b/backend/node_modules/moment/locale/en-in.js
@@ -0,0 +1,79 @@
+//! moment.js locale configuration
+//! locale : English (India) [en-in]
+//! author : Jatin Agrawal : https://github.com/jatinag22
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var enIn = moment.defineLocale('en-in', {
+        months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY h:mm A',
+            LLLL: 'dddd, D MMMM YYYY h:mm A',
+        },
+        calendar: {
+            sameDay: '[Today at] LT',
+            nextDay: '[Tomorrow at] LT',
+            nextWeek: 'dddd [at] LT',
+            lastDay: '[Yesterday at] LT',
+            lastWeek: '[Last] dddd [at] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: '%s ago',
+            s: 'a few seconds',
+            ss: '%d seconds',
+            m: 'a minute',
+            mm: '%d minutes',
+            h: 'an hour',
+            hh: '%d hours',
+            d: 'a day',
+            dd: '%d days',
+            M: 'a month',
+            MM: '%d months',
+            y: 'a year',
+            yy: '%d years',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 1st is the first week of the year.
+        },
+    });
+
+    return enIn;
+
+})));
diff --git a/backend/node_modules/moment/locale/en-nz.js b/backend/node_modules/moment/locale/en-nz.js
new file mode 100644
index 0000000..3a9d88f
--- /dev/null
+++ b/backend/node_modules/moment/locale/en-nz.js
@@ -0,0 +1,79 @@
+//! moment.js locale configuration
+//! locale : English (New Zealand) [en-nz]
+//! author : Luke McGregor : https://github.com/lukemcgregor
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var enNz = moment.defineLocale('en-nz', {
+        months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY h:mm A',
+            LLLL: 'dddd, D MMMM YYYY h:mm A',
+        },
+        calendar: {
+            sameDay: '[Today at] LT',
+            nextDay: '[Tomorrow at] LT',
+            nextWeek: 'dddd [at] LT',
+            lastDay: '[Yesterday at] LT',
+            lastWeek: '[Last] dddd [at] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: '%s ago',
+            s: 'a few seconds',
+            ss: '%d seconds',
+            m: 'a minute',
+            mm: '%d minutes',
+            h: 'an hour',
+            hh: '%d hours',
+            d: 'a day',
+            dd: '%d days',
+            M: 'a month',
+            MM: '%d months',
+            y: 'a year',
+            yy: '%d years',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return enNz;
+
+})));
diff --git a/backend/node_modules/moment/locale/en-sg.js b/backend/node_modules/moment/locale/en-sg.js
new file mode 100644
index 0000000..f7805ad
--- /dev/null
+++ b/backend/node_modules/moment/locale/en-sg.js
@@ -0,0 +1,79 @@
+//! moment.js locale configuration
+//! locale : English (Singapore) [en-sg]
+//! author : Matthew Castrillon-Madrigal : https://github.com/techdimension
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var enSg = moment.defineLocale('en-sg', {
+        months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Today at] LT',
+            nextDay: '[Tomorrow at] LT',
+            nextWeek: 'dddd [at] LT',
+            lastDay: '[Yesterday at] LT',
+            lastWeek: '[Last] dddd [at] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: '%s ago',
+            s: 'a few seconds',
+            ss: '%d seconds',
+            m: 'a minute',
+            mm: '%d minutes',
+            h: 'an hour',
+            hh: '%d hours',
+            d: 'a day',
+            dd: '%d days',
+            M: 'a month',
+            MM: '%d months',
+            y: 'a year',
+            yy: '%d years',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return enSg;
+
+})));
diff --git a/backend/node_modules/moment/locale/eo.js b/backend/node_modules/moment/locale/eo.js
new file mode 100644
index 0000000..799dad0
--- /dev/null
+++ b/backend/node_modules/moment/locale/eo.js
@@ -0,0 +1,79 @@
+//! moment.js locale configuration
+//! locale : Esperanto [eo]
+//! author : Colin Dean : https://github.com/colindean
+//! author : Mia Nordentoft Imperatori : https://github.com/miestasmia
+//! comment : miestasmia corrected the translation by colindean
+//! comment : Vivakvo corrected the translation by colindean and miestasmia
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var eo = moment.defineLocale('eo', {
+        months: 'januaro_februaro_marto_aprilo_majo_junio_julio_aŭgusto_septembro_oktobro_novembro_decembro'.split(
+            '_'
+        ),
+        monthsShort: 'jan_feb_mart_apr_maj_jun_jul_aŭg_sept_okt_nov_dec'.split('_'),
+        weekdays: 'dimanĉo_lundo_mardo_merkredo_ĵaŭdo_vendredo_sabato'.split('_'),
+        weekdaysShort: 'dim_lun_mard_merk_ĵaŭ_ven_sab'.split('_'),
+        weekdaysMin: 'di_lu_ma_me_ĵa_ve_sa'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY-MM-DD',
+            LL: '[la] D[-an de] MMMM, YYYY',
+            LLL: '[la] D[-an de] MMMM, YYYY HH:mm',
+            LLLL: 'dddd[n], [la] D[-an de] MMMM, YYYY HH:mm',
+            llll: 'ddd, [la] D[-an de] MMM, YYYY HH:mm',
+        },
+        meridiemParse: /[ap]\.t\.m/i,
+        isPM: function (input) {
+            return input.charAt(0).toLowerCase() === 'p';
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours > 11) {
+                return isLower ? 'p.t.m.' : 'P.T.M.';
+            } else {
+                return isLower ? 'a.t.m.' : 'A.T.M.';
+            }
+        },
+        calendar: {
+            sameDay: '[Hodiaŭ je] LT',
+            nextDay: '[Morgaŭ je] LT',
+            nextWeek: 'dddd[n je] LT',
+            lastDay: '[Hieraŭ je] LT',
+            lastWeek: '[pasintan] dddd[n je] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'post %s',
+            past: 'antaŭ %s',
+            s: 'kelkaj sekundoj',
+            ss: '%d sekundoj',
+            m: 'unu minuto',
+            mm: '%d minutoj',
+            h: 'unu horo',
+            hh: '%d horoj',
+            d: 'unu tago', //ne 'diurno', ĉar estas uzita por proksimumo
+            dd: '%d tagoj',
+            M: 'unu monato',
+            MM: '%d monatoj',
+            y: 'unu jaro',
+            yy: '%d jaroj',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}a/,
+        ordinal: '%da',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    return eo;
+
+})));
diff --git a/backend/node_modules/moment/locale/es-do.js b/backend/node_modules/moment/locale/es-do.js
new file mode 100644
index 0000000..8a557c3
--- /dev/null
+++ b/backend/node_modules/moment/locale/es-do.js
@@ -0,0 +1,119 @@
+//! moment.js locale configuration
+//! locale : Spanish (Dominican Republic) [es-do]
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var monthsShortDot =
+            'ene._feb._mar._abr._may._jun._jul._ago._sep._oct._nov._dic.'.split(
+                '_'
+            ),
+        monthsShort = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_'),
+        monthsParse = [
+            /^ene/i,
+            /^feb/i,
+            /^mar/i,
+            /^abr/i,
+            /^may/i,
+            /^jun/i,
+            /^jul/i,
+            /^ago/i,
+            /^sep/i,
+            /^oct/i,
+            /^nov/i,
+            /^dic/i,
+        ],
+        monthsRegex =
+            /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre|ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i;
+
+    var esDo = moment.defineLocale('es-do', {
+        months: 'enero_febrero_marzo_abril_mayo_junio_julio_agosto_septiembre_octubre_noviembre_diciembre'.split(
+            '_'
+        ),
+        monthsShort: function (m, format) {
+            if (!m) {
+                return monthsShortDot;
+            } else if (/-MMM-/.test(format)) {
+                return monthsShort[m.month()];
+            } else {
+                return monthsShortDot[m.month()];
+            }
+        },
+        monthsRegex: monthsRegex,
+        monthsShortRegex: monthsRegex,
+        monthsStrictRegex:
+            /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre)/i,
+        monthsShortStrictRegex:
+            /^(ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i,
+        monthsParse: monthsParse,
+        longMonthsParse: monthsParse,
+        shortMonthsParse: monthsParse,
+        weekdays: 'domingo_lunes_martes_miércoles_jueves_viernes_sábado'.split('_'),
+        weekdaysShort: 'dom._lun._mar._mié._jue._vie._sáb.'.split('_'),
+        weekdaysMin: 'do_lu_ma_mi_ju_vi_sá'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'DD/MM/YYYY',
+            LL: 'D [de] MMMM [de] YYYY',
+            LLL: 'D [de] MMMM [de] YYYY h:mm A',
+            LLLL: 'dddd, D [de] MMMM [de] YYYY h:mm A',
+        },
+        calendar: {
+            sameDay: function () {
+                return '[hoy a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            nextDay: function () {
+                return '[mañana a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            nextWeek: function () {
+                return 'dddd [a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            lastDay: function () {
+                return '[ayer a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            lastWeek: function () {
+                return (
+                    '[el] dddd [pasado a la' +
+                    (this.hours() !== 1 ? 's' : '') +
+                    '] LT'
+                );
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'en %s',
+            past: 'hace %s',
+            s: 'unos segundos',
+            ss: '%d segundos',
+            m: 'un minuto',
+            mm: '%d minutos',
+            h: 'una hora',
+            hh: '%d horas',
+            d: 'un día',
+            dd: '%d días',
+            w: 'una semana',
+            ww: '%d semanas',
+            M: 'un mes',
+            MM: '%d meses',
+            y: 'un año',
+            yy: '%d años',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return esDo;
+
+})));
diff --git a/backend/node_modules/moment/locale/es-mx.js b/backend/node_modules/moment/locale/es-mx.js
new file mode 100644
index 0000000..a233e40
--- /dev/null
+++ b/backend/node_modules/moment/locale/es-mx.js
@@ -0,0 +1,121 @@
+//! moment.js locale configuration
+//! locale : Spanish (Mexico) [es-mx]
+//! author : JC Franco : https://github.com/jcfranco
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var monthsShortDot =
+            'ene._feb._mar._abr._may._jun._jul._ago._sep._oct._nov._dic.'.split(
+                '_'
+            ),
+        monthsShort = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_'),
+        monthsParse = [
+            /^ene/i,
+            /^feb/i,
+            /^mar/i,
+            /^abr/i,
+            /^may/i,
+            /^jun/i,
+            /^jul/i,
+            /^ago/i,
+            /^sep/i,
+            /^oct/i,
+            /^nov/i,
+            /^dic/i,
+        ],
+        monthsRegex =
+            /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre|ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i;
+
+    var esMx = moment.defineLocale('es-mx', {
+        months: 'enero_febrero_marzo_abril_mayo_junio_julio_agosto_septiembre_octubre_noviembre_diciembre'.split(
+            '_'
+        ),
+        monthsShort: function (m, format) {
+            if (!m) {
+                return monthsShortDot;
+            } else if (/-MMM-/.test(format)) {
+                return monthsShort[m.month()];
+            } else {
+                return monthsShortDot[m.month()];
+            }
+        },
+        monthsRegex: monthsRegex,
+        monthsShortRegex: monthsRegex,
+        monthsStrictRegex:
+            /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre)/i,
+        monthsShortStrictRegex:
+            /^(ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i,
+        monthsParse: monthsParse,
+        longMonthsParse: monthsParse,
+        shortMonthsParse: monthsParse,
+        weekdays: 'domingo_lunes_martes_miércoles_jueves_viernes_sábado'.split('_'),
+        weekdaysShort: 'dom._lun._mar._mié._jue._vie._sáb.'.split('_'),
+        weekdaysMin: 'do_lu_ma_mi_ju_vi_sá'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D [de] MMMM [de] YYYY',
+            LLL: 'D [de] MMMM [de] YYYY H:mm',
+            LLLL: 'dddd, D [de] MMMM [de] YYYY H:mm',
+        },
+        calendar: {
+            sameDay: function () {
+                return '[hoy a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            nextDay: function () {
+                return '[mañana a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            nextWeek: function () {
+                return 'dddd [a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            lastDay: function () {
+                return '[ayer a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            lastWeek: function () {
+                return (
+                    '[el] dddd [pasado a la' +
+                    (this.hours() !== 1 ? 's' : '') +
+                    '] LT'
+                );
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'en %s',
+            past: 'hace %s',
+            s: 'unos segundos',
+            ss: '%d segundos',
+            m: 'un minuto',
+            mm: '%d minutos',
+            h: 'una hora',
+            hh: '%d horas',
+            d: 'un día',
+            dd: '%d días',
+            w: 'una semana',
+            ww: '%d semanas',
+            M: 'un mes',
+            MM: '%d meses',
+            y: 'un año',
+            yy: '%d años',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+        invalidDate: 'Fecha inválida',
+    });
+
+    return esMx;
+
+})));
diff --git a/backend/node_modules/moment/locale/es-us.js b/backend/node_modules/moment/locale/es-us.js
new file mode 100644
index 0000000..2c52254
--- /dev/null
+++ b/backend/node_modules/moment/locale/es-us.js
@@ -0,0 +1,121 @@
+//! moment.js locale configuration
+//! locale : Spanish (United States) [es-us]
+//! author : bustta : https://github.com/bustta
+//! author : chrisrodz : https://github.com/chrisrodz
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var monthsShortDot =
+            'ene._feb._mar._abr._may._jun._jul._ago._sep._oct._nov._dic.'.split(
+                '_'
+            ),
+        monthsShort = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_'),
+        monthsParse = [
+            /^ene/i,
+            /^feb/i,
+            /^mar/i,
+            /^abr/i,
+            /^may/i,
+            /^jun/i,
+            /^jul/i,
+            /^ago/i,
+            /^sep/i,
+            /^oct/i,
+            /^nov/i,
+            /^dic/i,
+        ],
+        monthsRegex =
+            /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre|ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i;
+
+    var esUs = moment.defineLocale('es-us', {
+        months: 'enero_febrero_marzo_abril_mayo_junio_julio_agosto_septiembre_octubre_noviembre_diciembre'.split(
+            '_'
+        ),
+        monthsShort: function (m, format) {
+            if (!m) {
+                return monthsShortDot;
+            } else if (/-MMM-/.test(format)) {
+                return monthsShort[m.month()];
+            } else {
+                return monthsShortDot[m.month()];
+            }
+        },
+        monthsRegex: monthsRegex,
+        monthsShortRegex: monthsRegex,
+        monthsStrictRegex:
+            /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre)/i,
+        monthsShortStrictRegex:
+            /^(ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i,
+        monthsParse: monthsParse,
+        longMonthsParse: monthsParse,
+        shortMonthsParse: monthsParse,
+        weekdays: 'domingo_lunes_martes_miércoles_jueves_viernes_sábado'.split('_'),
+        weekdaysShort: 'dom._lun._mar._mié._jue._vie._sáb.'.split('_'),
+        weekdaysMin: 'do_lu_ma_mi_ju_vi_sá'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'MM/DD/YYYY',
+            LL: 'D [de] MMMM [de] YYYY',
+            LLL: 'D [de] MMMM [de] YYYY h:mm A',
+            LLLL: 'dddd, D [de] MMMM [de] YYYY h:mm A',
+        },
+        calendar: {
+            sameDay: function () {
+                return '[hoy a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            nextDay: function () {
+                return '[mañana a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            nextWeek: function () {
+                return 'dddd [a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            lastDay: function () {
+                return '[ayer a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            lastWeek: function () {
+                return (
+                    '[el] dddd [pasado a la' +
+                    (this.hours() !== 1 ? 's' : '') +
+                    '] LT'
+                );
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'en %s',
+            past: 'hace %s',
+            s: 'unos segundos',
+            ss: '%d segundos',
+            m: 'un minuto',
+            mm: '%d minutos',
+            h: 'una hora',
+            hh: '%d horas',
+            d: 'un día',
+            dd: '%d días',
+            w: 'una semana',
+            ww: '%d semanas',
+            M: 'un mes',
+            MM: '%d meses',
+            y: 'un año',
+            yy: '%d años',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    return esUs;
+
+})));
diff --git a/backend/node_modules/moment/locale/es.js b/backend/node_modules/moment/locale/es.js
new file mode 100644
index 0000000..7fc4628
--- /dev/null
+++ b/backend/node_modules/moment/locale/es.js
@@ -0,0 +1,121 @@
+//! moment.js locale configuration
+//! locale : Spanish [es]
+//! author : Julio Napurí : https://github.com/julionc
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var monthsShortDot =
+            'ene._feb._mar._abr._may._jun._jul._ago._sep._oct._nov._dic.'.split(
+                '_'
+            ),
+        monthsShort = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_'),
+        monthsParse = [
+            /^ene/i,
+            /^feb/i,
+            /^mar/i,
+            /^abr/i,
+            /^may/i,
+            /^jun/i,
+            /^jul/i,
+            /^ago/i,
+            /^sep/i,
+            /^oct/i,
+            /^nov/i,
+            /^dic/i,
+        ],
+        monthsRegex =
+            /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre|ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i;
+
+    var es = moment.defineLocale('es', {
+        months: 'enero_febrero_marzo_abril_mayo_junio_julio_agosto_septiembre_octubre_noviembre_diciembre'.split(
+            '_'
+        ),
+        monthsShort: function (m, format) {
+            if (!m) {
+                return monthsShortDot;
+            } else if (/-MMM-/.test(format)) {
+                return monthsShort[m.month()];
+            } else {
+                return monthsShortDot[m.month()];
+            }
+        },
+        monthsRegex: monthsRegex,
+        monthsShortRegex: monthsRegex,
+        monthsStrictRegex:
+            /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre)/i,
+        monthsShortStrictRegex:
+            /^(ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i,
+        monthsParse: monthsParse,
+        longMonthsParse: monthsParse,
+        shortMonthsParse: monthsParse,
+        weekdays: 'domingo_lunes_martes_miércoles_jueves_viernes_sábado'.split('_'),
+        weekdaysShort: 'dom._lun._mar._mié._jue._vie._sáb.'.split('_'),
+        weekdaysMin: 'do_lu_ma_mi_ju_vi_sá'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D [de] MMMM [de] YYYY',
+            LLL: 'D [de] MMMM [de] YYYY H:mm',
+            LLLL: 'dddd, D [de] MMMM [de] YYYY H:mm',
+        },
+        calendar: {
+            sameDay: function () {
+                return '[hoy a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            nextDay: function () {
+                return '[mañana a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            nextWeek: function () {
+                return 'dddd [a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            lastDay: function () {
+                return '[ayer a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            lastWeek: function () {
+                return (
+                    '[el] dddd [pasado a la' +
+                    (this.hours() !== 1 ? 's' : '') +
+                    '] LT'
+                );
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'en %s',
+            past: 'hace %s',
+            s: 'unos segundos',
+            ss: '%d segundos',
+            m: 'un minuto',
+            mm: '%d minutos',
+            h: 'una hora',
+            hh: '%d horas',
+            d: 'un día',
+            dd: '%d días',
+            w: 'una semana',
+            ww: '%d semanas',
+            M: 'un mes',
+            MM: '%d meses',
+            y: 'un año',
+            yy: '%d años',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+        invalidDate: 'Fecha inválida',
+    });
+
+    return es;
+
+})));
diff --git a/backend/node_modules/moment/locale/et.js b/backend/node_modules/moment/locale/et.js
new file mode 100644
index 0000000..7c8760d
--- /dev/null
+++ b/backend/node_modules/moment/locale/et.js
@@ -0,0 +1,89 @@
+//! moment.js locale configuration
+//! locale : Estonian [et]
+//! author : Henry Kehlmann : https://github.com/madhenry
+//! improvements : Illimar Tambek : https://github.com/ragulka
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    function processRelativeTime(number, withoutSuffix, key, isFuture) {
+        var format = {
+            s: ['mõne sekundi', 'mõni sekund', 'paar sekundit'],
+            ss: [number + 'sekundi', number + 'sekundit'],
+            m: ['ühe minuti', 'üks minut'],
+            mm: [number + ' minuti', number + ' minutit'],
+            h: ['ühe tunni', 'tund aega', 'üks tund'],
+            hh: [number + ' tunni', number + ' tundi'],
+            d: ['ühe päeva', 'üks päev'],
+            M: ['kuu aja', 'kuu aega', 'üks kuu'],
+            MM: [number + ' kuu', number + ' kuud'],
+            y: ['ühe aasta', 'aasta', 'üks aasta'],
+            yy: [number + ' aasta', number + ' aastat'],
+        };
+        if (withoutSuffix) {
+            return format[key][2] ? format[key][2] : format[key][1];
+        }
+        return isFuture ? format[key][0] : format[key][1];
+    }
+
+    var et = moment.defineLocale('et', {
+        months: 'jaanuar_veebruar_märts_aprill_mai_juuni_juuli_august_september_oktoober_november_detsember'.split(
+            '_'
+        ),
+        monthsShort:
+            'jaan_veebr_märts_apr_mai_juuni_juuli_aug_sept_okt_nov_dets'.split('_'),
+        weekdays:
+            'pühapäev_esmaspäev_teisipäev_kolmapäev_neljapäev_reede_laupäev'.split(
+                '_'
+            ),
+        weekdaysShort: 'P_E_T_K_N_R_L'.split('_'),
+        weekdaysMin: 'P_E_T_K_N_R_L'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY H:mm',
+            LLLL: 'dddd, D. MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[Täna,] LT',
+            nextDay: '[Homme,] LT',
+            nextWeek: '[Järgmine] dddd LT',
+            lastDay: '[Eile,] LT',
+            lastWeek: '[Eelmine] dddd LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s pärast',
+            past: '%s tagasi',
+            s: processRelativeTime,
+            ss: processRelativeTime,
+            m: processRelativeTime,
+            mm: processRelativeTime,
+            h: processRelativeTime,
+            hh: processRelativeTime,
+            d: processRelativeTime,
+            dd: '%d päeva',
+            M: processRelativeTime,
+            MM: processRelativeTime,
+            y: processRelativeTime,
+            yy: processRelativeTime,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return et;
+
+})));
diff --git a/backend/node_modules/moment/locale/eu.js b/backend/node_modules/moment/locale/eu.js
new file mode 100644
index 0000000..ca2e547
--- /dev/null
+++ b/backend/node_modules/moment/locale/eu.js
@@ -0,0 +1,76 @@
+//! moment.js locale configuration
+//! locale : Basque [eu]
+//! author : Eneko Illarramendi : https://github.com/eillarra
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var eu = moment.defineLocale('eu', {
+        months: 'urtarrila_otsaila_martxoa_apirila_maiatza_ekaina_uztaila_abuztua_iraila_urria_azaroa_abendua'.split(
+            '_'
+        ),
+        monthsShort:
+            'urt._ots._mar._api._mai._eka._uzt._abu._ira._urr._aza._abe.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays:
+            'igandea_astelehena_asteartea_asteazkena_osteguna_ostirala_larunbata'.split(
+                '_'
+            ),
+        weekdaysShort: 'ig._al._ar._az._og._ol._lr.'.split('_'),
+        weekdaysMin: 'ig_al_ar_az_og_ol_lr'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY-MM-DD',
+            LL: 'YYYY[ko] MMMM[ren] D[a]',
+            LLL: 'YYYY[ko] MMMM[ren] D[a] HH:mm',
+            LLLL: 'dddd, YYYY[ko] MMMM[ren] D[a] HH:mm',
+            l: 'YYYY-M-D',
+            ll: 'YYYY[ko] MMM D[a]',
+            lll: 'YYYY[ko] MMM D[a] HH:mm',
+            llll: 'ddd, YYYY[ko] MMM D[a] HH:mm',
+        },
+        calendar: {
+            sameDay: '[gaur] LT[etan]',
+            nextDay: '[bihar] LT[etan]',
+            nextWeek: 'dddd LT[etan]',
+            lastDay: '[atzo] LT[etan]',
+            lastWeek: '[aurreko] dddd LT[etan]',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s barru',
+            past: 'duela %s',
+            s: 'segundo batzuk',
+            ss: '%d segundo',
+            m: 'minutu bat',
+            mm: '%d minutu',
+            h: 'ordu bat',
+            hh: '%d ordu',
+            d: 'egun bat',
+            dd: '%d egun',
+            M: 'hilabete bat',
+            MM: '%d hilabete',
+            y: 'urte bat',
+            yy: '%d urte',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    return eu;
+
+})));
diff --git a/backend/node_modules/moment/locale/fa.js b/backend/node_modules/moment/locale/fa.js
new file mode 100644
index 0000000..845757b
--- /dev/null
+++ b/backend/node_modules/moment/locale/fa.js
@@ -0,0 +1,124 @@
+//! moment.js locale configuration
+//! locale : Persian [fa]
+//! author : Ebrahim Byagowi : https://github.com/ebraminio
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var symbolMap = {
+            1: '۱',
+            2: '۲',
+            3: '۳',
+            4: '۴',
+            5: '۵',
+            6: '۶',
+            7: '۷',
+            8: '۸',
+            9: '۹',
+            0: '۰',
+        },
+        numberMap = {
+            '۱': '1',
+            '۲': '2',
+            '۳': '3',
+            '۴': '4',
+            '۵': '5',
+            '۶': '6',
+            '۷': '7',
+            '۸': '8',
+            '۹': '9',
+            '۰': '0',
+        };
+
+    var fa = moment.defineLocale('fa', {
+        months: 'ژانویه_فوریه_مارس_آوریل_مه_ژوئن_ژوئیه_اوت_سپتامبر_اکتبر_نوامبر_دسامبر'.split(
+            '_'
+        ),
+        monthsShort:
+            'ژانویه_فوریه_مارس_آوریل_مه_ژوئن_ژوئیه_اوت_سپتامبر_اکتبر_نوامبر_دسامبر'.split(
+                '_'
+            ),
+        weekdays:
+            'یک\u200cشنبه_دوشنبه_سه\u200cشنبه_چهارشنبه_پنج\u200cشنبه_جمعه_شنبه'.split(
+                '_'
+            ),
+        weekdaysShort:
+            'یک\u200cشنبه_دوشنبه_سه\u200cشنبه_چهارشنبه_پنج\u200cشنبه_جمعه_شنبه'.split(
+                '_'
+            ),
+        weekdaysMin: 'ی_د_س_چ_پ_ج_ش'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /قبل از ظهر|بعد از ظهر/,
+        isPM: function (input) {
+            return /بعد از ظهر/.test(input);
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'قبل از ظهر';
+            } else {
+                return 'بعد از ظهر';
+            }
+        },
+        calendar: {
+            sameDay: '[امروز ساعت] LT',
+            nextDay: '[فردا ساعت] LT',
+            nextWeek: 'dddd [ساعت] LT',
+            lastDay: '[دیروز ساعت] LT',
+            lastWeek: 'dddd [پیش] [ساعت] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'در %s',
+            past: '%s پیش',
+            s: 'چند ثانیه',
+            ss: '%d ثانیه',
+            m: 'یک دقیقه',
+            mm: '%d دقیقه',
+            h: 'یک ساعت',
+            hh: '%d ساعت',
+            d: 'یک روز',
+            dd: '%d روز',
+            M: 'یک ماه',
+            MM: '%d ماه',
+            y: 'یک سال',
+            yy: '%d سال',
+        },
+        preparse: function (string) {
+            return string
+                .replace(/[۰-۹]/g, function (match) {
+                    return numberMap[match];
+                })
+                .replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string
+                .replace(/\d/g, function (match) {
+                    return symbolMap[match];
+                })
+                .replace(/,/g, '،');
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}م/,
+        ordinal: '%dم',
+        week: {
+            dow: 6, // Saturday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    return fa;
+
+})));
diff --git a/backend/node_modules/moment/locale/fi.js b/backend/node_modules/moment/locale/fi.js
new file mode 100644
index 0000000..07e57cf
--- /dev/null
+++ b/backend/node_modules/moment/locale/fi.js
@@ -0,0 +1,135 @@
+//! moment.js locale configuration
+//! locale : Finnish [fi]
+//! author : Tarmo Aidantausta : https://github.com/bleadof
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var numbersPast =
+            'nolla yksi kaksi kolme neljä viisi kuusi seitsemän kahdeksan yhdeksän'.split(
+                ' '
+            ),
+        numbersFuture = [
+            'nolla',
+            'yhden',
+            'kahden',
+            'kolmen',
+            'neljän',
+            'viiden',
+            'kuuden',
+            numbersPast[7],
+            numbersPast[8],
+            numbersPast[9],
+        ];
+    function translate(number, withoutSuffix, key, isFuture) {
+        var result = '';
+        switch (key) {
+            case 's':
+                return isFuture ? 'muutaman sekunnin' : 'muutama sekunti';
+            case 'ss':
+                result = isFuture ? 'sekunnin' : 'sekuntia';
+                break;
+            case 'm':
+                return isFuture ? 'minuutin' : 'minuutti';
+            case 'mm':
+                result = isFuture ? 'minuutin' : 'minuuttia';
+                break;
+            case 'h':
+                return isFuture ? 'tunnin' : 'tunti';
+            case 'hh':
+                result = isFuture ? 'tunnin' : 'tuntia';
+                break;
+            case 'd':
+                return isFuture ? 'päivän' : 'päivä';
+            case 'dd':
+                result = isFuture ? 'päivän' : 'päivää';
+                break;
+            case 'M':
+                return isFuture ? 'kuukauden' : 'kuukausi';
+            case 'MM':
+                result = isFuture ? 'kuukauden' : 'kuukautta';
+                break;
+            case 'y':
+                return isFuture ? 'vuoden' : 'vuosi';
+            case 'yy':
+                result = isFuture ? 'vuoden' : 'vuotta';
+                break;
+        }
+        result = verbalNumber(number, isFuture) + ' ' + result;
+        return result;
+    }
+    function verbalNumber(number, isFuture) {
+        return number < 10
+            ? isFuture
+                ? numbersFuture[number]
+                : numbersPast[number]
+            : number;
+    }
+
+    var fi = moment.defineLocale('fi', {
+        months: 'tammikuu_helmikuu_maaliskuu_huhtikuu_toukokuu_kesäkuu_heinäkuu_elokuu_syyskuu_lokakuu_marraskuu_joulukuu'.split(
+            '_'
+        ),
+        monthsShort:
+            'tammi_helmi_maalis_huhti_touko_kesä_heinä_elo_syys_loka_marras_joulu'.split(
+                '_'
+            ),
+        weekdays:
+            'sunnuntai_maanantai_tiistai_keskiviikko_torstai_perjantai_lauantai'.split(
+                '_'
+            ),
+        weekdaysShort: 'su_ma_ti_ke_to_pe_la'.split('_'),
+        weekdaysMin: 'su_ma_ti_ke_to_pe_la'.split('_'),
+        longDateFormat: {
+            LT: 'HH.mm',
+            LTS: 'HH.mm.ss',
+            L: 'DD.MM.YYYY',
+            LL: 'Do MMMM[ta] YYYY',
+            LLL: 'Do MMMM[ta] YYYY, [klo] HH.mm',
+            LLLL: 'dddd, Do MMMM[ta] YYYY, [klo] HH.mm',
+            l: 'D.M.YYYY',
+            ll: 'Do MMM YYYY',
+            lll: 'Do MMM YYYY, [klo] HH.mm',
+            llll: 'ddd, Do MMM YYYY, [klo] HH.mm',
+        },
+        calendar: {
+            sameDay: '[tänään] [klo] LT',
+            nextDay: '[huomenna] [klo] LT',
+            nextWeek: 'dddd [klo] LT',
+            lastDay: '[eilen] [klo] LT',
+            lastWeek: '[viime] dddd[na] [klo] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s päästä',
+            past: '%s sitten',
+            s: translate,
+            ss: translate,
+            m: translate,
+            mm: translate,
+            h: translate,
+            hh: translate,
+            d: translate,
+            dd: translate,
+            M: translate,
+            MM: translate,
+            y: translate,
+            yy: translate,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return fi;
+
+})));
diff --git a/backend/node_modules/moment/locale/fil.js b/backend/node_modules/moment/locale/fil.js
new file mode 100644
index 0000000..13103e8
--- /dev/null
+++ b/backend/node_modules/moment/locale/fil.js
@@ -0,0 +1,69 @@
+//! moment.js locale configuration
+//! locale : Filipino [fil]
+//! author : Dan Hagman : https://github.com/hagmandan
+//! author : Matthew Co : https://github.com/matthewdeeco
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var fil = moment.defineLocale('fil', {
+        months: 'Enero_Pebrero_Marso_Abril_Mayo_Hunyo_Hulyo_Agosto_Setyembre_Oktubre_Nobyembre_Disyembre'.split(
+            '_'
+        ),
+        monthsShort: 'Ene_Peb_Mar_Abr_May_Hun_Hul_Ago_Set_Okt_Nob_Dis'.split('_'),
+        weekdays: 'Linggo_Lunes_Martes_Miyerkules_Huwebes_Biyernes_Sabado'.split(
+            '_'
+        ),
+        weekdaysShort: 'Lin_Lun_Mar_Miy_Huw_Biy_Sab'.split('_'),
+        weekdaysMin: 'Li_Lu_Ma_Mi_Hu_Bi_Sab'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'MM/D/YYYY',
+            LL: 'MMMM D, YYYY',
+            LLL: 'MMMM D, YYYY HH:mm',
+            LLLL: 'dddd, MMMM DD, YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: 'LT [ngayong araw]',
+            nextDay: '[Bukas ng] LT',
+            nextWeek: 'LT [sa susunod na] dddd',
+            lastDay: 'LT [kahapon]',
+            lastWeek: 'LT [noong nakaraang] dddd',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'sa loob ng %s',
+            past: '%s ang nakalipas',
+            s: 'ilang segundo',
+            ss: '%d segundo',
+            m: 'isang minuto',
+            mm: '%d minuto',
+            h: 'isang oras',
+            hh: '%d oras',
+            d: 'isang araw',
+            dd: '%d araw',
+            M: 'isang buwan',
+            MM: '%d buwan',
+            y: 'isang taon',
+            yy: '%d taon',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}/,
+        ordinal: function (number) {
+            return number;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return fil;
+
+})));
diff --git a/backend/node_modules/moment/locale/fo.js b/backend/node_modules/moment/locale/fo.js
new file mode 100644
index 0000000..217fcfb
--- /dev/null
+++ b/backend/node_modules/moment/locale/fo.js
@@ -0,0 +1,68 @@
+//! moment.js locale configuration
+//! locale : Faroese [fo]
+//! author : Ragnar Johannesen : https://github.com/ragnar123
+//! author : Kristian Sakarisson : https://github.com/sakarisson
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var fo = moment.defineLocale('fo', {
+        months: 'januar_februar_mars_apríl_mai_juni_juli_august_september_oktober_november_desember'.split(
+            '_'
+        ),
+        monthsShort: 'jan_feb_mar_apr_mai_jun_jul_aug_sep_okt_nov_des'.split('_'),
+        weekdays:
+            'sunnudagur_mánadagur_týsdagur_mikudagur_hósdagur_fríggjadagur_leygardagur'.split(
+                '_'
+            ),
+        weekdaysShort: 'sun_mán_týs_mik_hós_frí_ley'.split('_'),
+        weekdaysMin: 'su_má_tý_mi_hó_fr_le'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D. MMMM, YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Í dag kl.] LT',
+            nextDay: '[Í morgin kl.] LT',
+            nextWeek: 'dddd [kl.] LT',
+            lastDay: '[Í gjár kl.] LT',
+            lastWeek: '[síðstu] dddd [kl] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'um %s',
+            past: '%s síðani',
+            s: 'fá sekund',
+            ss: '%d sekundir',
+            m: 'ein minuttur',
+            mm: '%d minuttir',
+            h: 'ein tími',
+            hh: '%d tímar',
+            d: 'ein dagur',
+            dd: '%d dagar',
+            M: 'ein mánaður',
+            MM: '%d mánaðir',
+            y: 'eitt ár',
+            yy: '%d ár',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return fo;
+
+})));
diff --git a/backend/node_modules/moment/locale/fr-ca.js b/backend/node_modules/moment/locale/fr-ca.js
new file mode 100644
index 0000000..7d48fd7
--- /dev/null
+++ b/backend/node_modules/moment/locale/fr-ca.js
@@ -0,0 +1,81 @@
+//! moment.js locale configuration
+//! locale : French (Canada) [fr-ca]
+//! author : Jonathan Abourbih : https://github.com/jonbca
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var frCa = moment.defineLocale('fr-ca', {
+        months: 'janvier_février_mars_avril_mai_juin_juillet_août_septembre_octobre_novembre_décembre'.split(
+            '_'
+        ),
+        monthsShort:
+            'janv._févr._mars_avr._mai_juin_juil._août_sept._oct._nov._déc.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'dimanche_lundi_mardi_mercredi_jeudi_vendredi_samedi'.split('_'),
+        weekdaysShort: 'dim._lun._mar._mer._jeu._ven._sam.'.split('_'),
+        weekdaysMin: 'di_lu_ma_me_je_ve_sa'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY-MM-DD',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Aujourd’hui à] LT',
+            nextDay: '[Demain à] LT',
+            nextWeek: 'dddd [à] LT',
+            lastDay: '[Hier à] LT',
+            lastWeek: 'dddd [dernier à] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'dans %s',
+            past: 'il y a %s',
+            s: 'quelques secondes',
+            ss: '%d secondes',
+            m: 'une minute',
+            mm: '%d minutes',
+            h: 'une heure',
+            hh: '%d heures',
+            d: 'un jour',
+            dd: '%d jours',
+            M: 'un mois',
+            MM: '%d mois',
+            y: 'un an',
+            yy: '%d ans',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(er|e)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                // Words with masculine grammatical gender: mois, trimestre, jour
+                default:
+                case 'M':
+                case 'Q':
+                case 'D':
+                case 'DDD':
+                case 'd':
+                    return number + (number === 1 ? 'er' : 'e');
+
+                // Words with feminine grammatical gender: semaine
+                case 'w':
+                case 'W':
+                    return number + (number === 1 ? 're' : 'e');
+            }
+        },
+    });
+
+    return frCa;
+
+})));
diff --git a/backend/node_modules/moment/locale/fr-ch.js b/backend/node_modules/moment/locale/fr-ch.js
new file mode 100644
index 0000000..c28d81c
--- /dev/null
+++ b/backend/node_modules/moment/locale/fr-ch.js
@@ -0,0 +1,85 @@
+//! moment.js locale configuration
+//! locale : French (Switzerland) [fr-ch]
+//! author : Gaspard Bucher : https://github.com/gaspard
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var frCh = moment.defineLocale('fr-ch', {
+        months: 'janvier_février_mars_avril_mai_juin_juillet_août_septembre_octobre_novembre_décembre'.split(
+            '_'
+        ),
+        monthsShort:
+            'janv._févr._mars_avr._mai_juin_juil._août_sept._oct._nov._déc.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'dimanche_lundi_mardi_mercredi_jeudi_vendredi_samedi'.split('_'),
+        weekdaysShort: 'dim._lun._mar._mer._jeu._ven._sam.'.split('_'),
+        weekdaysMin: 'di_lu_ma_me_je_ve_sa'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Aujourd’hui à] LT',
+            nextDay: '[Demain à] LT',
+            nextWeek: 'dddd [à] LT',
+            lastDay: '[Hier à] LT',
+            lastWeek: 'dddd [dernier à] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'dans %s',
+            past: 'il y a %s',
+            s: 'quelques secondes',
+            ss: '%d secondes',
+            m: 'une minute',
+            mm: '%d minutes',
+            h: 'une heure',
+            hh: '%d heures',
+            d: 'un jour',
+            dd: '%d jours',
+            M: 'un mois',
+            MM: '%d mois',
+            y: 'un an',
+            yy: '%d ans',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(er|e)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                // Words with masculine grammatical gender: mois, trimestre, jour
+                default:
+                case 'M':
+                case 'Q':
+                case 'D':
+                case 'DDD':
+                case 'd':
+                    return number + (number === 1 ? 'er' : 'e');
+
+                // Words with feminine grammatical gender: semaine
+                case 'w':
+                case 'W':
+                    return number + (number === 1 ? 're' : 'e');
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return frCh;
+
+})));
diff --git a/backend/node_modules/moment/locale/fr.js b/backend/node_modules/moment/locale/fr.js
new file mode 100644
index 0000000..4e5536b
--- /dev/null
+++ b/backend/node_modules/moment/locale/fr.js
@@ -0,0 +1,119 @@
+//! moment.js locale configuration
+//! locale : French [fr]
+//! author : John Fischer : https://github.com/jfroffice
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var monthsStrictRegex =
+            /^(janvier|février|mars|avril|mai|juin|juillet|août|septembre|octobre|novembre|décembre)/i,
+        monthsShortStrictRegex =
+            /(janv\.?|févr\.?|mars|avr\.?|mai|juin|juil\.?|août|sept\.?|oct\.?|nov\.?|déc\.?)/i,
+        monthsRegex =
+            /(janv\.?|févr\.?|mars|avr\.?|mai|juin|juil\.?|août|sept\.?|oct\.?|nov\.?|déc\.?|janvier|février|mars|avril|mai|juin|juillet|août|septembre|octobre|novembre|décembre)/i,
+        monthsParse = [
+            /^janv/i,
+            /^févr/i,
+            /^mars/i,
+            /^avr/i,
+            /^mai/i,
+            /^juin/i,
+            /^juil/i,
+            /^août/i,
+            /^sept/i,
+            /^oct/i,
+            /^nov/i,
+            /^déc/i,
+        ];
+
+    var fr = moment.defineLocale('fr', {
+        months: 'janvier_février_mars_avril_mai_juin_juillet_août_septembre_octobre_novembre_décembre'.split(
+            '_'
+        ),
+        monthsShort:
+            'janv._févr._mars_avr._mai_juin_juil._août_sept._oct._nov._déc.'.split(
+                '_'
+            ),
+        monthsRegex: monthsRegex,
+        monthsShortRegex: monthsRegex,
+        monthsStrictRegex: monthsStrictRegex,
+        monthsShortStrictRegex: monthsShortStrictRegex,
+        monthsParse: monthsParse,
+        longMonthsParse: monthsParse,
+        shortMonthsParse: monthsParse,
+        weekdays: 'dimanche_lundi_mardi_mercredi_jeudi_vendredi_samedi'.split('_'),
+        weekdaysShort: 'dim._lun._mar._mer._jeu._ven._sam.'.split('_'),
+        weekdaysMin: 'di_lu_ma_me_je_ve_sa'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Aujourd’hui à] LT',
+            nextDay: '[Demain à] LT',
+            nextWeek: 'dddd [à] LT',
+            lastDay: '[Hier à] LT',
+            lastWeek: 'dddd [dernier à] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'dans %s',
+            past: 'il y a %s',
+            s: 'quelques secondes',
+            ss: '%d secondes',
+            m: 'une minute',
+            mm: '%d minutes',
+            h: 'une heure',
+            hh: '%d heures',
+            d: 'un jour',
+            dd: '%d jours',
+            w: 'une semaine',
+            ww: '%d semaines',
+            M: 'un mois',
+            MM: '%d mois',
+            y: 'un an',
+            yy: '%d ans',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(er|)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                // TODO: Return 'e' when day of month > 1. Move this case inside
+                // block for masculine words below.
+                // See https://github.com/moment/moment/issues/3375
+                case 'D':
+                    return number + (number === 1 ? 'er' : '');
+
+                // Words with masculine grammatical gender: mois, trimestre, jour
+                default:
+                case 'M':
+                case 'Q':
+                case 'DDD':
+                case 'd':
+                    return number + (number === 1 ? 'er' : 'e');
+
+                // Words with feminine grammatical gender: semaine
+                case 'w':
+                case 'W':
+                    return number + (number === 1 ? 're' : 'e');
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return fr;
+
+})));
diff --git a/backend/node_modules/moment/locale/fy.js b/backend/node_modules/moment/locale/fy.js
new file mode 100644
index 0000000..46cac08
--- /dev/null
+++ b/backend/node_modules/moment/locale/fy.js
@@ -0,0 +1,86 @@
+//! moment.js locale configuration
+//! locale : Frisian [fy]
+//! author : Robin van der Vliet : https://github.com/robin0van0der0v
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var monthsShortWithDots =
+            'jan._feb._mrt._apr._mai_jun._jul._aug._sep._okt._nov._des.'.split('_'),
+        monthsShortWithoutDots =
+            'jan_feb_mrt_apr_mai_jun_jul_aug_sep_okt_nov_des'.split('_');
+
+    var fy = moment.defineLocale('fy', {
+        months: 'jannewaris_febrewaris_maart_april_maaie_juny_july_augustus_septimber_oktober_novimber_desimber'.split(
+            '_'
+        ),
+        monthsShort: function (m, format) {
+            if (!m) {
+                return monthsShortWithDots;
+            } else if (/-MMM-/.test(format)) {
+                return monthsShortWithoutDots[m.month()];
+            } else {
+                return monthsShortWithDots[m.month()];
+            }
+        },
+        monthsParseExact: true,
+        weekdays: 'snein_moandei_tiisdei_woansdei_tongersdei_freed_sneon'.split(
+            '_'
+        ),
+        weekdaysShort: 'si._mo._ti._wo._to._fr._so.'.split('_'),
+        weekdaysMin: 'Si_Mo_Ti_Wo_To_Fr_So'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD-MM-YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[hjoed om] LT',
+            nextDay: '[moarn om] LT',
+            nextWeek: 'dddd [om] LT',
+            lastDay: '[juster om] LT',
+            lastWeek: '[ôfrûne] dddd [om] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'oer %s',
+            past: '%s lyn',
+            s: 'in pear sekonden',
+            ss: '%d sekonden',
+            m: 'ien minút',
+            mm: '%d minuten',
+            h: 'ien oere',
+            hh: '%d oeren',
+            d: 'ien dei',
+            dd: '%d dagen',
+            M: 'ien moanne',
+            MM: '%d moannen',
+            y: 'ien jier',
+            yy: '%d jierren',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
+        ordinal: function (number) {
+            return (
+                number +
+                (number === 1 || number === 8 || number >= 20 ? 'ste' : 'de')
+            );
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return fy;
+
+})));
diff --git a/backend/node_modules/moment/locale/ga.js b/backend/node_modules/moment/locale/ga.js
new file mode 100644
index 0000000..96f988c
--- /dev/null
+++ b/backend/node_modules/moment/locale/ga.js
@@ -0,0 +1,106 @@
+//! moment.js locale configuration
+//! locale : Irish or Irish Gaelic [ga]
+//! author : André Silva : https://github.com/askpt
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var months = [
+            'Eanáir',
+            'Feabhra',
+            'Márta',
+            'Aibreán',
+            'Bealtaine',
+            'Meitheamh',
+            'Iúil',
+            'Lúnasa',
+            'Meán Fómhair',
+            'Deireadh Fómhair',
+            'Samhain',
+            'Nollaig',
+        ],
+        monthsShort = [
+            'Ean',
+            'Feabh',
+            'Márt',
+            'Aib',
+            'Beal',
+            'Meith',
+            'Iúil',
+            'Lún',
+            'M.F.',
+            'D.F.',
+            'Samh',
+            'Noll',
+        ],
+        weekdays = [
+            'Dé Domhnaigh',
+            'Dé Luain',
+            'Dé Máirt',
+            'Dé Céadaoin',
+            'Déardaoin',
+            'Dé hAoine',
+            'Dé Sathairn',
+        ],
+        weekdaysShort = ['Domh', 'Luan', 'Máirt', 'Céad', 'Déar', 'Aoine', 'Sath'],
+        weekdaysMin = ['Do', 'Lu', 'Má', 'Cé', 'Dé', 'A', 'Sa'];
+
+    var ga = moment.defineLocale('ga', {
+        months: months,
+        monthsShort: monthsShort,
+        monthsParseExact: true,
+        weekdays: weekdays,
+        weekdaysShort: weekdaysShort,
+        weekdaysMin: weekdaysMin,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Inniu ag] LT',
+            nextDay: '[Amárach ag] LT',
+            nextWeek: 'dddd [ag] LT',
+            lastDay: '[Inné ag] LT',
+            lastWeek: 'dddd [seo caite] [ag] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'i %s',
+            past: '%s ó shin',
+            s: 'cúpla soicind',
+            ss: '%d soicind',
+            m: 'nóiméad',
+            mm: '%d nóiméad',
+            h: 'uair an chloig',
+            hh: '%d uair an chloig',
+            d: 'lá',
+            dd: '%d lá',
+            M: 'mí',
+            MM: '%d míonna',
+            y: 'bliain',
+            yy: '%d bliain',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(d|na|mh)/,
+        ordinal: function (number) {
+            var output = number === 1 ? 'd' : number % 10 === 2 ? 'na' : 'mh';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return ga;
+
+})));
diff --git a/backend/node_modules/moment/locale/gd.js b/backend/node_modules/moment/locale/gd.js
new file mode 100644
index 0000000..b053838
--- /dev/null
+++ b/backend/node_modules/moment/locale/gd.js
@@ -0,0 +1,106 @@
+//! moment.js locale configuration
+//! locale : Scottish Gaelic [gd]
+//! author : Jon Ashdown : https://github.com/jonashdown
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var months = [
+            'Am Faoilleach',
+            'An Gearran',
+            'Am Màrt',
+            'An Giblean',
+            'An Cèitean',
+            'An t-Ògmhios',
+            'An t-Iuchar',
+            'An Lùnastal',
+            'An t-Sultain',
+            'An Dàmhair',
+            'An t-Samhain',
+            'An Dùbhlachd',
+        ],
+        monthsShort = [
+            'Faoi',
+            'Gear',
+            'Màrt',
+            'Gibl',
+            'Cèit',
+            'Ògmh',
+            'Iuch',
+            'Lùn',
+            'Sult',
+            'Dàmh',
+            'Samh',
+            'Dùbh',
+        ],
+        weekdays = [
+            'Didòmhnaich',
+            'Diluain',
+            'Dimàirt',
+            'Diciadain',
+            'Diardaoin',
+            'Dihaoine',
+            'Disathairne',
+        ],
+        weekdaysShort = ['Did', 'Dil', 'Dim', 'Dic', 'Dia', 'Dih', 'Dis'],
+        weekdaysMin = ['Dò', 'Lu', 'Mà', 'Ci', 'Ar', 'Ha', 'Sa'];
+
+    var gd = moment.defineLocale('gd', {
+        months: months,
+        monthsShort: monthsShort,
+        monthsParseExact: true,
+        weekdays: weekdays,
+        weekdaysShort: weekdaysShort,
+        weekdaysMin: weekdaysMin,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[An-diugh aig] LT',
+            nextDay: '[A-màireach aig] LT',
+            nextWeek: 'dddd [aig] LT',
+            lastDay: '[An-dè aig] LT',
+            lastWeek: 'dddd [seo chaidh] [aig] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'ann an %s',
+            past: 'bho chionn %s',
+            s: 'beagan diogan',
+            ss: '%d diogan',
+            m: 'mionaid',
+            mm: '%d mionaidean',
+            h: 'uair',
+            hh: '%d uairean',
+            d: 'latha',
+            dd: '%d latha',
+            M: 'mìos',
+            MM: '%d mìosan',
+            y: 'bliadhna',
+            yy: '%d bliadhna',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(d|na|mh)/,
+        ordinal: function (number) {
+            var output = number === 1 ? 'd' : number % 10 === 2 ? 'na' : 'mh';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return gd;
+
+})));
diff --git a/backend/node_modules/moment/locale/gl.js b/backend/node_modules/moment/locale/gl.js
new file mode 100644
index 0000000..16dcb5a
--- /dev/null
+++ b/backend/node_modules/moment/locale/gl.js
@@ -0,0 +1,86 @@
+//! moment.js locale configuration
+//! locale : Galician [gl]
+//! author : Juan G. Hurtado : https://github.com/juanghurtado
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var gl = moment.defineLocale('gl', {
+        months: 'xaneiro_febreiro_marzo_abril_maio_xuño_xullo_agosto_setembro_outubro_novembro_decembro'.split(
+            '_'
+        ),
+        monthsShort:
+            'xan._feb._mar._abr._mai._xuñ._xul._ago._set._out._nov._dec.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'domingo_luns_martes_mércores_xoves_venres_sábado'.split('_'),
+        weekdaysShort: 'dom._lun._mar._mér._xov._ven._sáb.'.split('_'),
+        weekdaysMin: 'do_lu_ma_mé_xo_ve_sá'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D [de] MMMM [de] YYYY',
+            LLL: 'D [de] MMMM [de] YYYY H:mm',
+            LLLL: 'dddd, D [de] MMMM [de] YYYY H:mm',
+        },
+        calendar: {
+            sameDay: function () {
+                return '[hoxe ' + (this.hours() !== 1 ? 'ás' : 'á') + '] LT';
+            },
+            nextDay: function () {
+                return '[mañá ' + (this.hours() !== 1 ? 'ás' : 'á') + '] LT';
+            },
+            nextWeek: function () {
+                return 'dddd [' + (this.hours() !== 1 ? 'ás' : 'a') + '] LT';
+            },
+            lastDay: function () {
+                return '[onte ' + (this.hours() !== 1 ? 'á' : 'a') + '] LT';
+            },
+            lastWeek: function () {
+                return (
+                    '[o] dddd [pasado ' + (this.hours() !== 1 ? 'ás' : 'a') + '] LT'
+                );
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: function (str) {
+                if (str.indexOf('un') === 0) {
+                    return 'n' + str;
+                }
+                return 'en ' + str;
+            },
+            past: 'hai %s',
+            s: 'uns segundos',
+            ss: '%d segundos',
+            m: 'un minuto',
+            mm: '%d minutos',
+            h: 'unha hora',
+            hh: '%d horas',
+            d: 'un día',
+            dd: '%d días',
+            M: 'un mes',
+            MM: '%d meses',
+            y: 'un ano',
+            yy: '%d anos',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return gl;
+
+})));
diff --git a/backend/node_modules/moment/locale/gom-deva.js b/backend/node_modules/moment/locale/gom-deva.js
new file mode 100644
index 0000000..ae93d0d
--- /dev/null
+++ b/backend/node_modules/moment/locale/gom-deva.js
@@ -0,0 +1,137 @@
+//! moment.js locale configuration
+//! locale : Konkani Devanagari script [gom-deva]
+//! author : The Discoverer : https://github.com/WikiDiscoverer
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    function processRelativeTime(number, withoutSuffix, key, isFuture) {
+        var format = {
+            s: ['थोडया सॅकंडांनी', 'थोडे सॅकंड'],
+            ss: [number + ' सॅकंडांनी', number + ' सॅकंड'],
+            m: ['एका मिणटान', 'एक मिनूट'],
+            mm: [number + ' मिणटांनी', number + ' मिणटां'],
+            h: ['एका वरान', 'एक वर'],
+            hh: [number + ' वरांनी', number + ' वरां'],
+            d: ['एका दिसान', 'एक दीस'],
+            dd: [number + ' दिसांनी', number + ' दीस'],
+            M: ['एका म्हयन्यान', 'एक म्हयनो'],
+            MM: [number + ' म्हयन्यानी', number + ' म्हयने'],
+            y: ['एका वर्सान', 'एक वर्स'],
+            yy: [number + ' वर्सांनी', number + ' वर्सां'],
+        };
+        return isFuture ? format[key][0] : format[key][1];
+    }
+
+    var gomDeva = moment.defineLocale('gom-deva', {
+        months: {
+            standalone:
+                'जानेवारी_फेब्रुवारी_मार्च_एप्रील_मे_जून_जुलय_ऑगस्ट_सप्टेंबर_ऑक्टोबर_नोव्हेंबर_डिसेंबर'.split(
+                    '_'
+                ),
+            format: 'जानेवारीच्या_फेब्रुवारीच्या_मार्चाच्या_एप्रीलाच्या_मेयाच्या_जूनाच्या_जुलयाच्या_ऑगस्टाच्या_सप्टेंबराच्या_ऑक्टोबराच्या_नोव्हेंबराच्या_डिसेंबराच्या'.split(
+                '_'
+            ),
+            isFormat: /MMMM(\s)+D[oD]?/,
+        },
+        monthsShort:
+            'जाने._फेब्रु._मार्च_एप्री._मे_जून_जुल._ऑग._सप्टें._ऑक्टो._नोव्हें._डिसें.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'आयतार_सोमार_मंगळार_बुधवार_बिरेस्तार_सुक्रार_शेनवार'.split('_'),
+        weekdaysShort: 'आयत._सोम._मंगळ._बुध._ब्रेस्त._सुक्र._शेन.'.split('_'),
+        weekdaysMin: 'आ_सो_मं_बु_ब्रे_सु_शे'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'A h:mm [वाजतां]',
+            LTS: 'A h:mm:ss [वाजतां]',
+            L: 'DD-MM-YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY A h:mm [वाजतां]',
+            LLLL: 'dddd, MMMM Do, YYYY, A h:mm [वाजतां]',
+            llll: 'ddd, D MMM YYYY, A h:mm [वाजतां]',
+        },
+        calendar: {
+            sameDay: '[आयज] LT',
+            nextDay: '[फाल्यां] LT',
+            nextWeek: '[फुडलो] dddd[,] LT',
+            lastDay: '[काल] LT',
+            lastWeek: '[फाटलो] dddd[,] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s',
+            past: '%s आदीं',
+            s: processRelativeTime,
+            ss: processRelativeTime,
+            m: processRelativeTime,
+            mm: processRelativeTime,
+            h: processRelativeTime,
+            hh: processRelativeTime,
+            d: processRelativeTime,
+            dd: processRelativeTime,
+            M: processRelativeTime,
+            MM: processRelativeTime,
+            y: processRelativeTime,
+            yy: processRelativeTime,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(वेर)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                // the ordinal 'वेर' only applies to day of the month
+                case 'D':
+                    return number + 'वेर';
+                default:
+                case 'M':
+                case 'Q':
+                case 'DDD':
+                case 'd':
+                case 'w':
+                case 'W':
+                    return number;
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week
+            doy: 3, // The week that contains Jan 4th is the first week of the year (7 + 0 - 4)
+        },
+        meridiemParse: /राती|सकाळीं|दनपारां|सांजे/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'राती') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'सकाळीं') {
+                return hour;
+            } else if (meridiem === 'दनपारां') {
+                return hour > 12 ? hour : hour + 12;
+            } else if (meridiem === 'सांजे') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'राती';
+            } else if (hour < 12) {
+                return 'सकाळीं';
+            } else if (hour < 16) {
+                return 'दनपारां';
+            } else if (hour < 20) {
+                return 'सांजे';
+            } else {
+                return 'राती';
+            }
+        },
+    });
+
+    return gomDeva;
+
+})));
diff --git a/backend/node_modules/moment/locale/gom-latn.js b/backend/node_modules/moment/locale/gom-latn.js
new file mode 100644
index 0000000..93cbe15
--- /dev/null
+++ b/backend/node_modules/moment/locale/gom-latn.js
@@ -0,0 +1,135 @@
+//! moment.js locale configuration
+//! locale : Konkani Latin script [gom-latn]
+//! author : The Discoverer : https://github.com/WikiDiscoverer
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    function processRelativeTime(number, withoutSuffix, key, isFuture) {
+        var format = {
+            s: ['thoddea sekondamni', 'thodde sekond'],
+            ss: [number + ' sekondamni', number + ' sekond'],
+            m: ['eka mintan', 'ek minut'],
+            mm: [number + ' mintamni', number + ' mintam'],
+            h: ['eka voran', 'ek vor'],
+            hh: [number + ' voramni', number + ' voram'],
+            d: ['eka disan', 'ek dis'],
+            dd: [number + ' disamni', number + ' dis'],
+            M: ['eka mhoinean', 'ek mhoino'],
+            MM: [number + ' mhoineamni', number + ' mhoine'],
+            y: ['eka vorsan', 'ek voros'],
+            yy: [number + ' vorsamni', number + ' vorsam'],
+        };
+        return isFuture ? format[key][0] : format[key][1];
+    }
+
+    var gomLatn = moment.defineLocale('gom-latn', {
+        months: {
+            standalone:
+                'Janer_Febrer_Mars_Abril_Mai_Jun_Julai_Agost_Setembr_Otubr_Novembr_Dezembr'.split(
+                    '_'
+                ),
+            format: 'Janerachea_Febrerachea_Marsachea_Abrilachea_Maiachea_Junachea_Julaiachea_Agostachea_Setembrachea_Otubrachea_Novembrachea_Dezembrachea'.split(
+                '_'
+            ),
+            isFormat: /MMMM(\s)+D[oD]?/,
+        },
+        monthsShort:
+            'Jan._Feb._Mars_Abr._Mai_Jun_Jul._Ago._Set._Otu._Nov._Dez.'.split('_'),
+        monthsParseExact: true,
+        weekdays: "Aitar_Somar_Mongllar_Budhvar_Birestar_Sukrar_Son'var".split('_'),
+        weekdaysShort: 'Ait._Som._Mon._Bud._Bre._Suk._Son.'.split('_'),
+        weekdaysMin: 'Ai_Sm_Mo_Bu_Br_Su_Sn'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'A h:mm [vazta]',
+            LTS: 'A h:mm:ss [vazta]',
+            L: 'DD-MM-YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY A h:mm [vazta]',
+            LLLL: 'dddd, MMMM Do, YYYY, A h:mm [vazta]',
+            llll: 'ddd, D MMM YYYY, A h:mm [vazta]',
+        },
+        calendar: {
+            sameDay: '[Aiz] LT',
+            nextDay: '[Faleam] LT',
+            nextWeek: '[Fuddlo] dddd[,] LT',
+            lastDay: '[Kal] LT',
+            lastWeek: '[Fattlo] dddd[,] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s',
+            past: '%s adim',
+            s: processRelativeTime,
+            ss: processRelativeTime,
+            m: processRelativeTime,
+            mm: processRelativeTime,
+            h: processRelativeTime,
+            hh: processRelativeTime,
+            d: processRelativeTime,
+            dd: processRelativeTime,
+            M: processRelativeTime,
+            MM: processRelativeTime,
+            y: processRelativeTime,
+            yy: processRelativeTime,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(er)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                // the ordinal 'er' only applies to day of the month
+                case 'D':
+                    return number + 'er';
+                default:
+                case 'M':
+                case 'Q':
+                case 'DDD':
+                case 'd':
+                case 'w':
+                case 'W':
+                    return number;
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week
+            doy: 3, // The week that contains Jan 4th is the first week of the year (7 + 0 - 4)
+        },
+        meridiemParse: /rati|sokallim|donparam|sanje/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'rati') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'sokallim') {
+                return hour;
+            } else if (meridiem === 'donparam') {
+                return hour > 12 ? hour : hour + 12;
+            } else if (meridiem === 'sanje') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'rati';
+            } else if (hour < 12) {
+                return 'sokallim';
+            } else if (hour < 16) {
+                return 'donparam';
+            } else if (hour < 20) {
+                return 'sanje';
+            } else {
+                return 'rati';
+            }
+        },
+    });
+
+    return gomLatn;
+
+})));
diff --git a/backend/node_modules/moment/locale/gu.js b/backend/node_modules/moment/locale/gu.js
new file mode 100644
index 0000000..6583f77
--- /dev/null
+++ b/backend/node_modules/moment/locale/gu.js
@@ -0,0 +1,133 @@
+//! moment.js locale configuration
+//! locale : Gujarati [gu]
+//! author : Kaushik Thanki : https://github.com/Kaushik1987
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var symbolMap = {
+            1: '૧',
+            2: '૨',
+            3: '૩',
+            4: '૪',
+            5: '૫',
+            6: '૬',
+            7: '૭',
+            8: '૮',
+            9: '૯',
+            0: '૦',
+        },
+        numberMap = {
+            '૧': '1',
+            '૨': '2',
+            '૩': '3',
+            '૪': '4',
+            '૫': '5',
+            '૬': '6',
+            '૭': '7',
+            '૮': '8',
+            '૯': '9',
+            '૦': '0',
+        };
+
+    var gu = moment.defineLocale('gu', {
+        months: 'જાન્યુઆરી_ફેબ્રુઆરી_માર્ચ_એપ્રિલ_મે_જૂન_જુલાઈ_ઑગસ્ટ_સપ્ટેમ્બર_ઑક્ટ્બર_નવેમ્બર_ડિસેમ્બર'.split(
+            '_'
+        ),
+        monthsShort:
+            'જાન્યુ._ફેબ્રુ._માર્ચ_એપ્રિ._મે_જૂન_જુલા._ઑગ._સપ્ટે._ઑક્ટ્._નવે._ડિસે.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'રવિવાર_સોમવાર_મંગળવાર_બુધ્વાર_ગુરુવાર_શુક્રવાર_શનિવાર'.split(
+            '_'
+        ),
+        weekdaysShort: 'રવિ_સોમ_મંગળ_બુધ્_ગુરુ_શુક્ર_શનિ'.split('_'),
+        weekdaysMin: 'ર_સો_મં_બુ_ગુ_શુ_શ'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm વાગ્યે',
+            LTS: 'A h:mm:ss વાગ્યે',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm વાગ્યે',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm વાગ્યે',
+        },
+        calendar: {
+            sameDay: '[આજ] LT',
+            nextDay: '[કાલે] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[ગઇકાલે] LT',
+            lastWeek: '[પાછલા] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s મા',
+            past: '%s પહેલા',
+            s: 'અમુક પળો',
+            ss: '%d સેકંડ',
+            m: 'એક મિનિટ',
+            mm: '%d મિનિટ',
+            h: 'એક કલાક',
+            hh: '%d કલાક',
+            d: 'એક દિવસ',
+            dd: '%d દિવસ',
+            M: 'એક મહિનો',
+            MM: '%d મહિનો',
+            y: 'એક વર્ષ',
+            yy: '%d વર્ષ',
+        },
+        preparse: function (string) {
+            return string.replace(/[૧૨૩૪૫૬૭૮૯૦]/g, function (match) {
+                return numberMap[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap[match];
+            });
+        },
+        // Gujarati notation for meridiems are quite fuzzy in practice. While there exists
+        // a rigid notion of a 'Pahar' it is not used as rigidly in modern Gujarati.
+        meridiemParse: /રાત|બપોર|સવાર|સાંજ/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'રાત') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'સવાર') {
+                return hour;
+            } else if (meridiem === 'બપોર') {
+                return hour >= 10 ? hour : hour + 12;
+            } else if (meridiem === 'સાંજ') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'રાત';
+            } else if (hour < 10) {
+                return 'સવાર';
+            } else if (hour < 17) {
+                return 'બપોર';
+            } else if (hour < 20) {
+                return 'સાંજ';
+            } else {
+                return 'રાત';
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    return gu;
+
+})));
diff --git a/backend/node_modules/moment/locale/he.js b/backend/node_modules/moment/locale/he.js
new file mode 100644
index 0000000..e19a0f9
--- /dev/null
+++ b/backend/node_modules/moment/locale/he.js
@@ -0,0 +1,105 @@
+//! moment.js locale configuration
+//! locale : Hebrew [he]
+//! author : Tomer Cohen : https://github.com/tomer
+//! author : Moshe Simantov : https://github.com/DevelopmentIL
+//! author : Tal Ater : https://github.com/TalAter
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var he = moment.defineLocale('he', {
+        months: 'ינואר_פברואר_מרץ_אפריל_מאי_יוני_יולי_אוגוסט_ספטמבר_אוקטובר_נובמבר_דצמבר'.split(
+            '_'
+        ),
+        monthsShort:
+            'ינו׳_פבר׳_מרץ_אפר׳_מאי_יוני_יולי_אוג׳_ספט׳_אוק׳_נוב׳_דצמ׳'.split('_'),
+        weekdays: 'ראשון_שני_שלישי_רביעי_חמישי_שישי_שבת'.split('_'),
+        weekdaysShort: 'א׳_ב׳_ג׳_ד׳_ה׳_ו׳_ש׳'.split('_'),
+        weekdaysMin: 'א_ב_ג_ד_ה_ו_ש'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D [ב]MMMM YYYY',
+            LLL: 'D [ב]MMMM YYYY HH:mm',
+            LLLL: 'dddd, D [ב]MMMM YYYY HH:mm',
+            l: 'D/M/YYYY',
+            ll: 'D MMM YYYY',
+            lll: 'D MMM YYYY HH:mm',
+            llll: 'ddd, D MMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[היום ב־]LT',
+            nextDay: '[מחר ב־]LT',
+            nextWeek: 'dddd [בשעה] LT',
+            lastDay: '[אתמול ב־]LT',
+            lastWeek: '[ביום] dddd [האחרון בשעה] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'בעוד %s',
+            past: 'לפני %s',
+            s: 'מספר שניות',
+            ss: '%d שניות',
+            m: 'דקה',
+            mm: '%d דקות',
+            h: 'שעה',
+            hh: function (number) {
+                if (number === 2) {
+                    return 'שעתיים';
+                }
+                return number + ' שעות';
+            },
+            d: 'יום',
+            dd: function (number) {
+                if (number === 2) {
+                    return 'יומיים';
+                }
+                return number + ' ימים';
+            },
+            M: 'חודש',
+            MM: function (number) {
+                if (number === 2) {
+                    return 'חודשיים';
+                }
+                return number + ' חודשים';
+            },
+            y: 'שנה',
+            yy: function (number) {
+                if (number === 2) {
+                    return 'שנתיים';
+                } else if (number % 10 === 0 && number !== 10) {
+                    return number + ' שנה';
+                }
+                return number + ' שנים';
+            },
+        },
+        meridiemParse:
+            /אחה"צ|לפנה"צ|אחרי הצהריים|לפני הצהריים|לפנות בוקר|בבוקר|בערב/i,
+        isPM: function (input) {
+            return /^(אחה"צ|אחרי הצהריים|בערב)$/.test(input);
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 5) {
+                return 'לפנות בוקר';
+            } else if (hour < 10) {
+                return 'בבוקר';
+            } else if (hour < 12) {
+                return isLower ? 'לפנה"צ' : 'לפני הצהריים';
+            } else if (hour < 18) {
+                return isLower ? 'אחה"צ' : 'אחרי הצהריים';
+            } else {
+                return 'בערב';
+            }
+        },
+    });
+
+    return he;
+
+})));
diff --git a/backend/node_modules/moment/locale/hi.js b/backend/node_modules/moment/locale/hi.js
new file mode 100644
index 0000000..56515bd
--- /dev/null
+++ b/backend/node_modules/moment/locale/hi.js
@@ -0,0 +1,179 @@
+//! moment.js locale configuration
+//! locale : Hindi [hi]
+//! author : Mayank Singhal : https://github.com/mayanksinghal
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var symbolMap = {
+            1: '१',
+            2: '२',
+            3: '३',
+            4: '४',
+            5: '५',
+            6: '६',
+            7: '७',
+            8: '८',
+            9: '९',
+            0: '०',
+        },
+        numberMap = {
+            '१': '1',
+            '२': '2',
+            '३': '3',
+            '४': '4',
+            '५': '5',
+            '६': '6',
+            '७': '7',
+            '८': '8',
+            '९': '9',
+            '०': '0',
+        },
+        monthsParse = [
+            /^जन/i,
+            /^फ़र|फर/i,
+            /^मार्च/i,
+            /^अप्रै/i,
+            /^मई/i,
+            /^जून/i,
+            /^जुल/i,
+            /^अग/i,
+            /^सितं|सित/i,
+            /^अक्टू/i,
+            /^नव|नवं/i,
+            /^दिसं|दिस/i,
+        ],
+        shortMonthsParse = [
+            /^जन/i,
+            /^फ़र/i,
+            /^मार्च/i,
+            /^अप्रै/i,
+            /^मई/i,
+            /^जून/i,
+            /^जुल/i,
+            /^अग/i,
+            /^सित/i,
+            /^अक्टू/i,
+            /^नव/i,
+            /^दिस/i,
+        ];
+
+    var hi = moment.defineLocale('hi', {
+        months: {
+            format: 'जनवरी_फ़रवरी_मार्च_अप्रैल_मई_जून_जुलाई_अगस्त_सितम्बर_अक्टूबर_नवम्बर_दिसम्बर'.split(
+                '_'
+            ),
+            standalone:
+                'जनवरी_फरवरी_मार्च_अप्रैल_मई_जून_जुलाई_अगस्त_सितंबर_अक्टूबर_नवंबर_दिसंबर'.split(
+                    '_'
+                ),
+        },
+        monthsShort:
+            'जन._फ़र._मार्च_अप्रै._मई_जून_जुल._अग._सित._अक्टू._नव._दिस.'.split('_'),
+        weekdays: 'रविवार_सोमवार_मंगलवार_बुधवार_गुरूवार_शुक्रवार_शनिवार'.split('_'),
+        weekdaysShort: 'रवि_सोम_मंगल_बुध_गुरू_शुक्र_शनि'.split('_'),
+        weekdaysMin: 'र_सो_मं_बु_गु_शु_श'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm बजे',
+            LTS: 'A h:mm:ss बजे',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm बजे',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm बजे',
+        },
+
+        monthsParse: monthsParse,
+        longMonthsParse: monthsParse,
+        shortMonthsParse: shortMonthsParse,
+
+        monthsRegex:
+            /^(जनवरी|जन\.?|फ़रवरी|फरवरी|फ़र\.?|मार्च?|अप्रैल|अप्रै\.?|मई?|जून?|जुलाई|जुल\.?|अगस्त|अग\.?|सितम्बर|सितंबर|सित\.?|अक्टूबर|अक्टू\.?|नवम्बर|नवंबर|नव\.?|दिसम्बर|दिसंबर|दिस\.?)/i,
+
+        monthsShortRegex:
+            /^(जनवरी|जन\.?|फ़रवरी|फरवरी|फ़र\.?|मार्च?|अप्रैल|अप्रै\.?|मई?|जून?|जुलाई|जुल\.?|अगस्त|अग\.?|सितम्बर|सितंबर|सित\.?|अक्टूबर|अक्टू\.?|नवम्बर|नवंबर|नव\.?|दिसम्बर|दिसंबर|दिस\.?)/i,
+
+        monthsStrictRegex:
+            /^(जनवरी?|फ़रवरी|फरवरी?|मार्च?|अप्रैल?|मई?|जून?|जुलाई?|अगस्त?|सितम्बर|सितंबर|सित?\.?|अक्टूबर|अक्टू\.?|नवम्बर|नवंबर?|दिसम्बर|दिसंबर?)/i,
+
+        monthsShortStrictRegex:
+            /^(जन\.?|फ़र\.?|मार्च?|अप्रै\.?|मई?|जून?|जुल\.?|अग\.?|सित\.?|अक्टू\.?|नव\.?|दिस\.?)/i,
+
+        calendar: {
+            sameDay: '[आज] LT',
+            nextDay: '[कल] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[कल] LT',
+            lastWeek: '[पिछले] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s में',
+            past: '%s पहले',
+            s: 'कुछ ही क्षण',
+            ss: '%d सेकंड',
+            m: 'एक मिनट',
+            mm: '%d मिनट',
+            h: 'एक घंटा',
+            hh: '%d घंटे',
+            d: 'एक दिन',
+            dd: '%d दिन',
+            M: 'एक महीने',
+            MM: '%d महीने',
+            y: 'एक वर्ष',
+            yy: '%d वर्ष',
+        },
+        preparse: function (string) {
+            return string.replace(/[१२३४५६७८९०]/g, function (match) {
+                return numberMap[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap[match];
+            });
+        },
+        // Hindi notation for meridiems are quite fuzzy in practice. While there exists
+        // a rigid notion of a 'Pahar' it is not used as rigidly in modern Hindi.
+        meridiemParse: /रात|सुबह|दोपहर|शाम/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'रात') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'सुबह') {
+                return hour;
+            } else if (meridiem === 'दोपहर') {
+                return hour >= 10 ? hour : hour + 12;
+            } else if (meridiem === 'शाम') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'रात';
+            } else if (hour < 10) {
+                return 'सुबह';
+            } else if (hour < 17) {
+                return 'दोपहर';
+            } else if (hour < 20) {
+                return 'शाम';
+            } else {
+                return 'रात';
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    return hi;
+
+})));
diff --git a/backend/node_modules/moment/locale/hr.js b/backend/node_modules/moment/locale/hr.js
new file mode 100644
index 0000000..f41cce0
--- /dev/null
+++ b/backend/node_modules/moment/locale/hr.js
@@ -0,0 +1,167 @@
+//! moment.js locale configuration
+//! locale : Croatian [hr]
+//! author : Bojan Marković : https://github.com/bmarkovic
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    function translate(number, withoutSuffix, key) {
+        var result = number + ' ';
+        switch (key) {
+            case 'ss':
+                if (number === 1) {
+                    result += 'sekunda';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'sekunde';
+                } else {
+                    result += 'sekundi';
+                }
+                return result;
+            case 'm':
+                return withoutSuffix ? 'jedna minuta' : 'jedne minute';
+            case 'mm':
+                if (number === 1) {
+                    result += 'minuta';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'minute';
+                } else {
+                    result += 'minuta';
+                }
+                return result;
+            case 'h':
+                return withoutSuffix ? 'jedan sat' : 'jednog sata';
+            case 'hh':
+                if (number === 1) {
+                    result += 'sat';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'sata';
+                } else {
+                    result += 'sati';
+                }
+                return result;
+            case 'dd':
+                if (number === 1) {
+                    result += 'dan';
+                } else {
+                    result += 'dana';
+                }
+                return result;
+            case 'MM':
+                if (number === 1) {
+                    result += 'mjesec';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'mjeseca';
+                } else {
+                    result += 'mjeseci';
+                }
+                return result;
+            case 'yy':
+                if (number === 1) {
+                    result += 'godina';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'godine';
+                } else {
+                    result += 'godina';
+                }
+                return result;
+        }
+    }
+
+    var hr = moment.defineLocale('hr', {
+        months: {
+            format: 'siječnja_veljače_ožujka_travnja_svibnja_lipnja_srpnja_kolovoza_rujna_listopada_studenoga_prosinca'.split(
+                '_'
+            ),
+            standalone:
+                'siječanj_veljača_ožujak_travanj_svibanj_lipanj_srpanj_kolovoz_rujan_listopad_studeni_prosinac'.split(
+                    '_'
+                ),
+        },
+        monthsShort:
+            'sij._velj._ožu._tra._svi._lip._srp._kol._ruj._lis._stu._pro.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'nedjelja_ponedjeljak_utorak_srijeda_četvrtak_petak_subota'.split(
+            '_'
+        ),
+        weekdaysShort: 'ned._pon._uto._sri._čet._pet._sub.'.split('_'),
+        weekdaysMin: 'ne_po_ut_sr_če_pe_su'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'Do MMMM YYYY',
+            LLL: 'Do MMMM YYYY H:mm',
+            LLLL: 'dddd, Do MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[danas u] LT',
+            nextDay: '[sutra u] LT',
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[u] [nedjelju] [u] LT';
+                    case 3:
+                        return '[u] [srijedu] [u] LT';
+                    case 6:
+                        return '[u] [subotu] [u] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[u] dddd [u] LT';
+                }
+            },
+            lastDay: '[jučer u] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[prošlu] [nedjelju] [u] LT';
+                    case 3:
+                        return '[prošlu] [srijedu] [u] LT';
+                    case 6:
+                        return '[prošle] [subote] [u] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[prošli] dddd [u] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'za %s',
+            past: 'prije %s',
+            s: 'par sekundi',
+            ss: translate,
+            m: translate,
+            mm: translate,
+            h: translate,
+            hh: translate,
+            d: 'dan',
+            dd: translate,
+            M: 'mjesec',
+            MM: translate,
+            y: 'godinu',
+            yy: translate,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    return hr;
+
+})));
diff --git a/backend/node_modules/moment/locale/hu.js b/backend/node_modules/moment/locale/hu.js
new file mode 100644
index 0000000..162959d
--- /dev/null
+++ b/backend/node_modules/moment/locale/hu.js
@@ -0,0 +1,129 @@
+//! moment.js locale configuration
+//! locale : Hungarian [hu]
+//! author : Adam Brunner : https://github.com/adambrunner
+//! author : Peter Viszt  : https://github.com/passatgt
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var weekEndings =
+        'vasárnap hétfőn kedden szerdán csütörtökön pénteken szombaton'.split(' ');
+    function translate(number, withoutSuffix, key, isFuture) {
+        var num = number;
+        switch (key) {
+            case 's':
+                return isFuture || withoutSuffix
+                    ? 'néhány másodperc'
+                    : 'néhány másodperce';
+            case 'ss':
+                return num + (isFuture || withoutSuffix)
+                    ? ' másodperc'
+                    : ' másodperce';
+            case 'm':
+                return 'egy' + (isFuture || withoutSuffix ? ' perc' : ' perce');
+            case 'mm':
+                return num + (isFuture || withoutSuffix ? ' perc' : ' perce');
+            case 'h':
+                return 'egy' + (isFuture || withoutSuffix ? ' óra' : ' órája');
+            case 'hh':
+                return num + (isFuture || withoutSuffix ? ' óra' : ' órája');
+            case 'd':
+                return 'egy' + (isFuture || withoutSuffix ? ' nap' : ' napja');
+            case 'dd':
+                return num + (isFuture || withoutSuffix ? ' nap' : ' napja');
+            case 'M':
+                return 'egy' + (isFuture || withoutSuffix ? ' hónap' : ' hónapja');
+            case 'MM':
+                return num + (isFuture || withoutSuffix ? ' hónap' : ' hónapja');
+            case 'y':
+                return 'egy' + (isFuture || withoutSuffix ? ' év' : ' éve');
+            case 'yy':
+                return num + (isFuture || withoutSuffix ? ' év' : ' éve');
+        }
+        return '';
+    }
+    function week(isFuture) {
+        return (
+            (isFuture ? '' : '[múlt] ') +
+            '[' +
+            weekEndings[this.day()] +
+            '] LT[-kor]'
+        );
+    }
+
+    var hu = moment.defineLocale('hu', {
+        months: 'január_február_március_április_május_június_július_augusztus_szeptember_október_november_december'.split(
+            '_'
+        ),
+        monthsShort:
+            'jan._feb._márc._ápr._máj._jún._júl._aug._szept._okt._nov._dec.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'vasárnap_hétfő_kedd_szerda_csütörtök_péntek_szombat'.split('_'),
+        weekdaysShort: 'vas_hét_kedd_sze_csüt_pén_szo'.split('_'),
+        weekdaysMin: 'v_h_k_sze_cs_p_szo'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'YYYY.MM.DD.',
+            LL: 'YYYY. MMMM D.',
+            LLL: 'YYYY. MMMM D. H:mm',
+            LLLL: 'YYYY. MMMM D., dddd H:mm',
+        },
+        meridiemParse: /de|du/i,
+        isPM: function (input) {
+            return input.charAt(1).toLowerCase() === 'u';
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 12) {
+                return isLower === true ? 'de' : 'DE';
+            } else {
+                return isLower === true ? 'du' : 'DU';
+            }
+        },
+        calendar: {
+            sameDay: '[ma] LT[-kor]',
+            nextDay: '[holnap] LT[-kor]',
+            nextWeek: function () {
+                return week.call(this, true);
+            },
+            lastDay: '[tegnap] LT[-kor]',
+            lastWeek: function () {
+                return week.call(this, false);
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s múlva',
+            past: '%s',
+            s: translate,
+            ss: translate,
+            m: translate,
+            mm: translate,
+            h: translate,
+            hh: translate,
+            d: translate,
+            dd: translate,
+            M: translate,
+            MM: translate,
+            y: translate,
+            yy: translate,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return hu;
+
+})));
diff --git a/backend/node_modules/moment/locale/hy-am.js b/backend/node_modules/moment/locale/hy-am.js
new file mode 100644
index 0000000..9c65b1e
--- /dev/null
+++ b/backend/node_modules/moment/locale/hy-am.js
@@ -0,0 +1,105 @@
+//! moment.js locale configuration
+//! locale : Armenian [hy-am]
+//! author : Armendarabyan : https://github.com/armendarabyan
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var hyAm = moment.defineLocale('hy-am', {
+        months: {
+            format: 'հունվարի_փետրվարի_մարտի_ապրիլի_մայիսի_հունիսի_հուլիսի_օգոստոսի_սեպտեմբերի_հոկտեմբերի_նոյեմբերի_դեկտեմբերի'.split(
+                '_'
+            ),
+            standalone:
+                'հունվար_փետրվար_մարտ_ապրիլ_մայիս_հունիս_հուլիս_օգոստոս_սեպտեմբեր_հոկտեմբեր_նոյեմբեր_դեկտեմբեր'.split(
+                    '_'
+                ),
+        },
+        monthsShort: 'հնվ_փտր_մրտ_ապր_մյս_հնս_հլս_օգս_սպտ_հկտ_նմբ_դկտ'.split('_'),
+        weekdays:
+            'կիրակի_երկուշաբթի_երեքշաբթի_չորեքշաբթի_հինգշաբթի_ուրբաթ_շաբաթ'.split(
+                '_'
+            ),
+        weekdaysShort: 'կրկ_երկ_երք_չրք_հնգ_ուրբ_շբթ'.split('_'),
+        weekdaysMin: 'կրկ_երկ_երք_չրք_հնգ_ուրբ_շբթ'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY թ.',
+            LLL: 'D MMMM YYYY թ., HH:mm',
+            LLLL: 'dddd, D MMMM YYYY թ., HH:mm',
+        },
+        calendar: {
+            sameDay: '[այսօր] LT',
+            nextDay: '[վաղը] LT',
+            lastDay: '[երեկ] LT',
+            nextWeek: function () {
+                return 'dddd [օրը ժամը] LT';
+            },
+            lastWeek: function () {
+                return '[անցած] dddd [օրը ժամը] LT';
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s հետո',
+            past: '%s առաջ',
+            s: 'մի քանի վայրկյան',
+            ss: '%d վայրկյան',
+            m: 'րոպե',
+            mm: '%d րոպե',
+            h: 'ժամ',
+            hh: '%d ժամ',
+            d: 'օր',
+            dd: '%d օր',
+            M: 'ամիս',
+            MM: '%d ամիս',
+            y: 'տարի',
+            yy: '%d տարի',
+        },
+        meridiemParse: /գիշերվա|առավոտվա|ցերեկվա|երեկոյան/,
+        isPM: function (input) {
+            return /^(ցերեկվա|երեկոյան)$/.test(input);
+        },
+        meridiem: function (hour) {
+            if (hour < 4) {
+                return 'գիշերվա';
+            } else if (hour < 12) {
+                return 'առավոտվա';
+            } else if (hour < 17) {
+                return 'ցերեկվա';
+            } else {
+                return 'երեկոյան';
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}|\d{1,2}-(ին|րդ)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'DDD':
+                case 'w':
+                case 'W':
+                case 'DDDo':
+                    if (number === 1) {
+                        return number + '-ին';
+                    }
+                    return number + '-րդ';
+                default:
+                    return number;
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    return hyAm;
+
+})));
diff --git a/backend/node_modules/moment/locale/id.js b/backend/node_modules/moment/locale/id.js
new file mode 100644
index 0000000..9f8ff0a
--- /dev/null
+++ b/backend/node_modules/moment/locale/id.js
@@ -0,0 +1,87 @@
+//! moment.js locale configuration
+//! locale : Indonesian [id]
+//! author : Mohammad Satrio Utomo : https://github.com/tyok
+//! reference: http://id.wikisource.org/wiki/Pedoman_Umum_Ejaan_Bahasa_Indonesia_yang_Disempurnakan
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var id = moment.defineLocale('id', {
+        months: 'Januari_Februari_Maret_April_Mei_Juni_Juli_Agustus_September_Oktober_November_Desember'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_Mei_Jun_Jul_Agt_Sep_Okt_Nov_Des'.split('_'),
+        weekdays: 'Minggu_Senin_Selasa_Rabu_Kamis_Jumat_Sabtu'.split('_'),
+        weekdaysShort: 'Min_Sen_Sel_Rab_Kam_Jum_Sab'.split('_'),
+        weekdaysMin: 'Mg_Sn_Sl_Rb_Km_Jm_Sb'.split('_'),
+        longDateFormat: {
+            LT: 'HH.mm',
+            LTS: 'HH.mm.ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY [pukul] HH.mm',
+            LLLL: 'dddd, D MMMM YYYY [pukul] HH.mm',
+        },
+        meridiemParse: /pagi|siang|sore|malam/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'pagi') {
+                return hour;
+            } else if (meridiem === 'siang') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === 'sore' || meridiem === 'malam') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 11) {
+                return 'pagi';
+            } else if (hours < 15) {
+                return 'siang';
+            } else if (hours < 19) {
+                return 'sore';
+            } else {
+                return 'malam';
+            }
+        },
+        calendar: {
+            sameDay: '[Hari ini pukul] LT',
+            nextDay: '[Besok pukul] LT',
+            nextWeek: 'dddd [pukul] LT',
+            lastDay: '[Kemarin pukul] LT',
+            lastWeek: 'dddd [lalu pukul] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'dalam %s',
+            past: '%s yang lalu',
+            s: 'beberapa detik',
+            ss: '%d detik',
+            m: 'semenit',
+            mm: '%d menit',
+            h: 'sejam',
+            hh: '%d jam',
+            d: 'sehari',
+            dd: '%d hari',
+            M: 'sebulan',
+            MM: '%d bulan',
+            y: 'setahun',
+            yy: '%d tahun',
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    return id;
+
+})));
diff --git a/backend/node_modules/moment/locale/is.js b/backend/node_modules/moment/locale/is.js
new file mode 100644
index 0000000..0252006
--- /dev/null
+++ b/backend/node_modules/moment/locale/is.js
@@ -0,0 +1,151 @@
+//! moment.js locale configuration
+//! locale : Icelandic [is]
+//! author : Hinrik Örn Sigurðsson : https://github.com/hinrik
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    function plural(n) {
+        if (n % 100 === 11) {
+            return true;
+        } else if (n % 10 === 1) {
+            return false;
+        }
+        return true;
+    }
+    function translate(number, withoutSuffix, key, isFuture) {
+        var result = number + ' ';
+        switch (key) {
+            case 's':
+                return withoutSuffix || isFuture
+                    ? 'nokkrar sekúndur'
+                    : 'nokkrum sekúndum';
+            case 'ss':
+                if (plural(number)) {
+                    return (
+                        result +
+                        (withoutSuffix || isFuture ? 'sekúndur' : 'sekúndum')
+                    );
+                }
+                return result + 'sekúnda';
+            case 'm':
+                return withoutSuffix ? 'mínúta' : 'mínútu';
+            case 'mm':
+                if (plural(number)) {
+                    return (
+                        result + (withoutSuffix || isFuture ? 'mínútur' : 'mínútum')
+                    );
+                } else if (withoutSuffix) {
+                    return result + 'mínúta';
+                }
+                return result + 'mínútu';
+            case 'hh':
+                if (plural(number)) {
+                    return (
+                        result +
+                        (withoutSuffix || isFuture
+                            ? 'klukkustundir'
+                            : 'klukkustundum')
+                    );
+                }
+                return result + 'klukkustund';
+            case 'd':
+                if (withoutSuffix) {
+                    return 'dagur';
+                }
+                return isFuture ? 'dag' : 'degi';
+            case 'dd':
+                if (plural(number)) {
+                    if (withoutSuffix) {
+                        return result + 'dagar';
+                    }
+                    return result + (isFuture ? 'daga' : 'dögum');
+                } else if (withoutSuffix) {
+                    return result + 'dagur';
+                }
+                return result + (isFuture ? 'dag' : 'degi');
+            case 'M':
+                if (withoutSuffix) {
+                    return 'mánuður';
+                }
+                return isFuture ? 'mánuð' : 'mánuði';
+            case 'MM':
+                if (plural(number)) {
+                    if (withoutSuffix) {
+                        return result + 'mánuðir';
+                    }
+                    return result + (isFuture ? 'mánuði' : 'mánuðum');
+                } else if (withoutSuffix) {
+                    return result + 'mánuður';
+                }
+                return result + (isFuture ? 'mánuð' : 'mánuði');
+            case 'y':
+                return withoutSuffix || isFuture ? 'ár' : 'ári';
+            case 'yy':
+                if (plural(number)) {
+                    return result + (withoutSuffix || isFuture ? 'ár' : 'árum');
+                }
+                return result + (withoutSuffix || isFuture ? 'ár' : 'ári');
+        }
+    }
+
+    var is = moment.defineLocale('is', {
+        months: 'janúar_febrúar_mars_apríl_maí_júní_júlí_ágúst_september_október_nóvember_desember'.split(
+            '_'
+        ),
+        monthsShort: 'jan_feb_mar_apr_maí_jún_júl_ágú_sep_okt_nóv_des'.split('_'),
+        weekdays:
+            'sunnudagur_mánudagur_þriðjudagur_miðvikudagur_fimmtudagur_föstudagur_laugardagur'.split(
+                '_'
+            ),
+        weekdaysShort: 'sun_mán_þri_mið_fim_fös_lau'.split('_'),
+        weekdaysMin: 'Su_Má_Þr_Mi_Fi_Fö_La'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY [kl.] H:mm',
+            LLLL: 'dddd, D. MMMM YYYY [kl.] H:mm',
+        },
+        calendar: {
+            sameDay: '[í dag kl.] LT',
+            nextDay: '[á morgun kl.] LT',
+            nextWeek: 'dddd [kl.] LT',
+            lastDay: '[í gær kl.] LT',
+            lastWeek: '[síðasta] dddd [kl.] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'eftir %s',
+            past: 'fyrir %s síðan',
+            s: translate,
+            ss: translate,
+            m: translate,
+            mm: translate,
+            h: 'klukkustund',
+            hh: translate,
+            d: translate,
+            dd: translate,
+            M: translate,
+            MM: translate,
+            y: translate,
+            yy: translate,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return is;
+
+})));
diff --git a/backend/node_modules/moment/locale/it-ch.js b/backend/node_modules/moment/locale/it-ch.js
new file mode 100644
index 0000000..8042827
--- /dev/null
+++ b/backend/node_modules/moment/locale/it-ch.js
@@ -0,0 +1,75 @@
+//! moment.js locale configuration
+//! locale : Italian (Switzerland) [it-ch]
+//! author : xfh : https://github.com/xfh
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var itCh = moment.defineLocale('it-ch', {
+        months: 'gennaio_febbraio_marzo_aprile_maggio_giugno_luglio_agosto_settembre_ottobre_novembre_dicembre'.split(
+            '_'
+        ),
+        monthsShort: 'gen_feb_mar_apr_mag_giu_lug_ago_set_ott_nov_dic'.split('_'),
+        weekdays: 'domenica_lunedì_martedì_mercoledì_giovedì_venerdì_sabato'.split(
+            '_'
+        ),
+        weekdaysShort: 'dom_lun_mar_mer_gio_ven_sab'.split('_'),
+        weekdaysMin: 'do_lu_ma_me_gi_ve_sa'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Oggi alle] LT',
+            nextDay: '[Domani alle] LT',
+            nextWeek: 'dddd [alle] LT',
+            lastDay: '[Ieri alle] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[la scorsa] dddd [alle] LT';
+                    default:
+                        return '[lo scorso] dddd [alle] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: function (s) {
+                return (/^[0-9].+$/.test(s) ? 'tra' : 'in') + ' ' + s;
+            },
+            past: '%s fa',
+            s: 'alcuni secondi',
+            ss: '%d secondi',
+            m: 'un minuto',
+            mm: '%d minuti',
+            h: "un'ora",
+            hh: '%d ore',
+            d: 'un giorno',
+            dd: '%d giorni',
+            M: 'un mese',
+            MM: '%d mesi',
+            y: 'un anno',
+            yy: '%d anni',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return itCh;
+
+})));
diff --git a/backend/node_modules/moment/locale/it.js b/backend/node_modules/moment/locale/it.js
new file mode 100644
index 0000000..910e005
--- /dev/null
+++ b/backend/node_modules/moment/locale/it.js
@@ -0,0 +1,117 @@
+//! moment.js locale configuration
+//! locale : Italian [it]
+//! author : Lorenzo : https://github.com/aliem
+//! author: Mattia Larentis: https://github.com/nostalgiaz
+//! author: Marco : https://github.com/Manfre98
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var it = moment.defineLocale('it', {
+        months: 'gennaio_febbraio_marzo_aprile_maggio_giugno_luglio_agosto_settembre_ottobre_novembre_dicembre'.split(
+            '_'
+        ),
+        monthsShort: 'gen_feb_mar_apr_mag_giu_lug_ago_set_ott_nov_dic'.split('_'),
+        weekdays: 'domenica_lunedì_martedì_mercoledì_giovedì_venerdì_sabato'.split(
+            '_'
+        ),
+        weekdaysShort: 'dom_lun_mar_mer_gio_ven_sab'.split('_'),
+        weekdaysMin: 'do_lu_ma_me_gi_ve_sa'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: function () {
+                return (
+                    '[Oggi a' +
+                    (this.hours() > 1 ? 'lle ' : this.hours() === 0 ? ' ' : "ll'") +
+                    ']LT'
+                );
+            },
+            nextDay: function () {
+                return (
+                    '[Domani a' +
+                    (this.hours() > 1 ? 'lle ' : this.hours() === 0 ? ' ' : "ll'") +
+                    ']LT'
+                );
+            },
+            nextWeek: function () {
+                return (
+                    'dddd [a' +
+                    (this.hours() > 1 ? 'lle ' : this.hours() === 0 ? ' ' : "ll'") +
+                    ']LT'
+                );
+            },
+            lastDay: function () {
+                return (
+                    '[Ieri a' +
+                    (this.hours() > 1 ? 'lle ' : this.hours() === 0 ? ' ' : "ll'") +
+                    ']LT'
+                );
+            },
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return (
+                            '[La scorsa] dddd [a' +
+                            (this.hours() > 1
+                                ? 'lle '
+                                : this.hours() === 0
+                                  ? ' '
+                                  : "ll'") +
+                            ']LT'
+                        );
+                    default:
+                        return (
+                            '[Lo scorso] dddd [a' +
+                            (this.hours() > 1
+                                ? 'lle '
+                                : this.hours() === 0
+                                  ? ' '
+                                  : "ll'") +
+                            ']LT'
+                        );
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'tra %s',
+            past: '%s fa',
+            s: 'alcuni secondi',
+            ss: '%d secondi',
+            m: 'un minuto',
+            mm: '%d minuti',
+            h: "un'ora",
+            hh: '%d ore',
+            d: 'un giorno',
+            dd: '%d giorni',
+            w: 'una settimana',
+            ww: '%d settimane',
+            M: 'un mese',
+            MM: '%d mesi',
+            y: 'un anno',
+            yy: '%d anni',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return it;
+
+})));
diff --git a/backend/node_modules/moment/locale/ja.js b/backend/node_modules/moment/locale/ja.js
new file mode 100644
index 0000000..88d8454
--- /dev/null
+++ b/backend/node_modules/moment/locale/ja.js
@@ -0,0 +1,159 @@
+//! moment.js locale configuration
+//! locale : Japanese [ja]
+//! author : LI Long : https://github.com/baryon
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var ja = moment.defineLocale('ja', {
+        eras: [
+            {
+                since: '2019-05-01',
+                offset: 1,
+                name: '令和',
+                narrow: '㋿',
+                abbr: 'R',
+            },
+            {
+                since: '1989-01-08',
+                until: '2019-04-30',
+                offset: 1,
+                name: '平成',
+                narrow: '㍻',
+                abbr: 'H',
+            },
+            {
+                since: '1926-12-25',
+                until: '1989-01-07',
+                offset: 1,
+                name: '昭和',
+                narrow: '㍼',
+                abbr: 'S',
+            },
+            {
+                since: '1912-07-30',
+                until: '1926-12-24',
+                offset: 1,
+                name: '大正',
+                narrow: '㍽',
+                abbr: 'T',
+            },
+            {
+                since: '1873-01-01',
+                until: '1912-07-29',
+                offset: 6,
+                name: '明治',
+                narrow: '㍾',
+                abbr: 'M',
+            },
+            {
+                since: '0001-01-01',
+                until: '1873-12-31',
+                offset: 1,
+                name: '西暦',
+                narrow: 'AD',
+                abbr: 'AD',
+            },
+            {
+                since: '0000-12-31',
+                until: -Infinity,
+                offset: 1,
+                name: '紀元前',
+                narrow: 'BC',
+                abbr: 'BC',
+            },
+        ],
+        eraYearOrdinalRegex: /(元|\d+)年/,
+        eraYearOrdinalParse: function (input, match) {
+            return match[1] === '元' ? 1 : parseInt(match[1] || input, 10);
+        },
+        months: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split('_'),
+        monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+            '_'
+        ),
+        weekdays: '日曜日_月曜日_火曜日_水曜日_木曜日_金曜日_土曜日'.split('_'),
+        weekdaysShort: '日_月_火_水_木_金_土'.split('_'),
+        weekdaysMin: '日_月_火_水_木_金_土'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY/MM/DD',
+            LL: 'YYYY年M月D日',
+            LLL: 'YYYY年M月D日 HH:mm',
+            LLLL: 'YYYY年M月D日 dddd HH:mm',
+            l: 'YYYY/MM/DD',
+            ll: 'YYYY年M月D日',
+            lll: 'YYYY年M月D日 HH:mm',
+            llll: 'YYYY年M月D日(ddd) HH:mm',
+        },
+        meridiemParse: /午前|午後/i,
+        isPM: function (input) {
+            return input === '午後';
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return '午前';
+            } else {
+                return '午後';
+            }
+        },
+        calendar: {
+            sameDay: '[今日] LT',
+            nextDay: '[明日] LT',
+            nextWeek: function (now) {
+                if (now.week() !== this.week()) {
+                    return '[来週]dddd LT';
+                } else {
+                    return 'dddd LT';
+                }
+            },
+            lastDay: '[昨日] LT',
+            lastWeek: function (now) {
+                if (this.week() !== now.week()) {
+                    return '[先週]dddd LT';
+                } else {
+                    return 'dddd LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}日/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'y':
+                    return number === 1 ? '元年' : number + '年';
+                case 'd':
+                case 'D':
+                case 'DDD':
+                    return number + '日';
+                default:
+                    return number;
+            }
+        },
+        relativeTime: {
+            future: '%s後',
+            past: '%s前',
+            s: '数秒',
+            ss: '%d秒',
+            m: '1分',
+            mm: '%d分',
+            h: '1時間',
+            hh: '%d時間',
+            d: '1日',
+            dd: '%d日',
+            M: '1ヶ月',
+            MM: '%dヶ月',
+            y: '1年',
+            yy: '%d年',
+        },
+    });
+
+    return ja;
+
+})));
diff --git a/backend/node_modules/moment/locale/jv.js b/backend/node_modules/moment/locale/jv.js
new file mode 100644
index 0000000..ab6655f
--- /dev/null
+++ b/backend/node_modules/moment/locale/jv.js
@@ -0,0 +1,87 @@
+//! moment.js locale configuration
+//! locale : Javanese [jv]
+//! author : Rony Lantip : https://github.com/lantip
+//! reference: http://jv.wikipedia.org/wiki/Basa_Jawa
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var jv = moment.defineLocale('jv', {
+        months: 'Januari_Februari_Maret_April_Mei_Juni_Juli_Agustus_September_Oktober_Nopember_Desember'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_Mei_Jun_Jul_Ags_Sep_Okt_Nop_Des'.split('_'),
+        weekdays: 'Minggu_Senen_Seloso_Rebu_Kemis_Jemuwah_Septu'.split('_'),
+        weekdaysShort: 'Min_Sen_Sel_Reb_Kem_Jem_Sep'.split('_'),
+        weekdaysMin: 'Mg_Sn_Sl_Rb_Km_Jm_Sp'.split('_'),
+        longDateFormat: {
+            LT: 'HH.mm',
+            LTS: 'HH.mm.ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY [pukul] HH.mm',
+            LLLL: 'dddd, D MMMM YYYY [pukul] HH.mm',
+        },
+        meridiemParse: /enjing|siyang|sonten|ndalu/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'enjing') {
+                return hour;
+            } else if (meridiem === 'siyang') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === 'sonten' || meridiem === 'ndalu') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 11) {
+                return 'enjing';
+            } else if (hours < 15) {
+                return 'siyang';
+            } else if (hours < 19) {
+                return 'sonten';
+            } else {
+                return 'ndalu';
+            }
+        },
+        calendar: {
+            sameDay: '[Dinten puniko pukul] LT',
+            nextDay: '[Mbenjang pukul] LT',
+            nextWeek: 'dddd [pukul] LT',
+            lastDay: '[Kala wingi pukul] LT',
+            lastWeek: 'dddd [kepengker pukul] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'wonten ing %s',
+            past: '%s ingkang kepengker',
+            s: 'sawetawis detik',
+            ss: '%d detik',
+            m: 'setunggal menit',
+            mm: '%d menit',
+            h: 'setunggal jam',
+            hh: '%d jam',
+            d: 'sedinten',
+            dd: '%d dinten',
+            M: 'sewulan',
+            MM: '%d wulan',
+            y: 'setaun',
+            yy: '%d taun',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    return jv;
+
+})));
diff --git a/backend/node_modules/moment/locale/ka.js b/backend/node_modules/moment/locale/ka.js
new file mode 100644
index 0000000..6357669
--- /dev/null
+++ b/backend/node_modules/moment/locale/ka.js
@@ -0,0 +1,103 @@
+//! moment.js locale configuration
+//! locale : Georgian [ka]
+//! author : Irakli Janiashvili : https://github.com/IrakliJani
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var ka = moment.defineLocale('ka', {
+        months: 'იანვარი_თებერვალი_მარტი_აპრილი_მაისი_ივნისი_ივლისი_აგვისტო_სექტემბერი_ოქტომბერი_ნოემბერი_დეკემბერი'.split(
+            '_'
+        ),
+        monthsShort: 'იან_თებ_მარ_აპრ_მაი_ივნ_ივლ_აგვ_სექ_ოქტ_ნოე_დეკ'.split('_'),
+        weekdays: {
+            standalone:
+                'კვირა_ორშაბათი_სამშაბათი_ოთხშაბათი_ხუთშაბათი_პარასკევი_შაბათი'.split(
+                    '_'
+                ),
+            format: 'კვირას_ორშაბათს_სამშაბათს_ოთხშაბათს_ხუთშაბათს_პარასკევს_შაბათს'.split(
+                '_'
+            ),
+            isFormat: /(წინა|შემდეგ)/,
+        },
+        weekdaysShort: 'კვი_ორშ_სამ_ოთხ_ხუთ_პარ_შაბ'.split('_'),
+        weekdaysMin: 'კვ_ორ_სა_ოთ_ხუ_პა_შა'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[დღეს] LT[-ზე]',
+            nextDay: '[ხვალ] LT[-ზე]',
+            lastDay: '[გუშინ] LT[-ზე]',
+            nextWeek: '[შემდეგ] dddd LT[-ზე]',
+            lastWeek: '[წინა] dddd LT-ზე',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: function (s) {
+                return s.replace(
+                    /(წამ|წუთ|საათ|წელ|დღ|თვ)(ი|ე)/,
+                    function ($0, $1, $2) {
+                        return $2 === 'ი' ? $1 + 'ში' : $1 + $2 + 'ში';
+                    }
+                );
+            },
+            past: function (s) {
+                if (/(წამი|წუთი|საათი|დღე|თვე)/.test(s)) {
+                    return s.replace(/(ი|ე)$/, 'ის წინ');
+                }
+                if (/წელი/.test(s)) {
+                    return s.replace(/წელი$/, 'წლის წინ');
+                }
+                return s;
+            },
+            s: 'რამდენიმე წამი',
+            ss: '%d წამი',
+            m: 'წუთი',
+            mm: '%d წუთი',
+            h: 'საათი',
+            hh: '%d საათი',
+            d: 'დღე',
+            dd: '%d დღე',
+            M: 'თვე',
+            MM: '%d თვე',
+            y: 'წელი',
+            yy: '%d წელი',
+        },
+        dayOfMonthOrdinalParse: /0|1-ლი|მე-\d{1,2}|\d{1,2}-ე/,
+        ordinal: function (number) {
+            if (number === 0) {
+                return number;
+            }
+            if (number === 1) {
+                return number + '-ლი';
+            }
+            if (
+                number < 20 ||
+                (number <= 100 && number % 20 === 0) ||
+                number % 100 === 0
+            ) {
+                return 'მე-' + number;
+            }
+            return number + '-ე';
+        },
+        week: {
+            dow: 1,
+            doy: 7,
+        },
+    });
+
+    return ka;
+
+})));
diff --git a/backend/node_modules/moment/locale/kk.js b/backend/node_modules/moment/locale/kk.js
new file mode 100644
index 0000000..38f2e8c
--- /dev/null
+++ b/backend/node_modules/moment/locale/kk.js
@@ -0,0 +1,93 @@
+//! moment.js locale configuration
+//! locale : Kazakh [kk]
+//! authors : Nurlan Rakhimzhanov : https://github.com/nurlan
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var suffixes = {
+        0: '-ші',
+        1: '-ші',
+        2: '-ші',
+        3: '-ші',
+        4: '-ші',
+        5: '-ші',
+        6: '-шы',
+        7: '-ші',
+        8: '-ші',
+        9: '-шы',
+        10: '-шы',
+        20: '-шы',
+        30: '-шы',
+        40: '-шы',
+        50: '-ші',
+        60: '-шы',
+        70: '-ші',
+        80: '-ші',
+        90: '-шы',
+        100: '-ші',
+    };
+
+    var kk = moment.defineLocale('kk', {
+        months: 'қаңтар_ақпан_наурыз_сәуір_мамыр_маусым_шілде_тамыз_қыркүйек_қазан_қараша_желтоқсан'.split(
+            '_'
+        ),
+        monthsShort: 'қаң_ақп_нау_сәу_мам_мау_шіл_там_қыр_қаз_қар_жел'.split('_'),
+        weekdays: 'жексенбі_дүйсенбі_сейсенбі_сәрсенбі_бейсенбі_жұма_сенбі'.split(
+            '_'
+        ),
+        weekdaysShort: 'жек_дүй_сей_сәр_бей_жұм_сен'.split('_'),
+        weekdaysMin: 'жк_дй_сй_ср_бй_жм_сн'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Бүгін сағат] LT',
+            nextDay: '[Ертең сағат] LT',
+            nextWeek: 'dddd [сағат] LT',
+            lastDay: '[Кеше сағат] LT',
+            lastWeek: '[Өткен аптаның] dddd [сағат] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s ішінде',
+            past: '%s бұрын',
+            s: 'бірнеше секунд',
+            ss: '%d секунд',
+            m: 'бір минут',
+            mm: '%d минут',
+            h: 'бір сағат',
+            hh: '%d сағат',
+            d: 'бір күн',
+            dd: '%d күн',
+            M: 'бір ай',
+            MM: '%d ай',
+            y: 'бір жыл',
+            yy: '%d жыл',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(ші|шы)/,
+        ordinal: function (number) {
+            var a = number % 10,
+                b = number >= 100 ? 100 : null;
+            return number + (suffixes[number] || suffixes[a] || suffixes[b]);
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    return kk;
+
+})));
diff --git a/backend/node_modules/moment/locale/km.js b/backend/node_modules/moment/locale/km.js
new file mode 100644
index 0000000..5306436
--- /dev/null
+++ b/backend/node_modules/moment/locale/km.js
@@ -0,0 +1,114 @@
+//! moment.js locale configuration
+//! locale : Cambodian [km]
+//! author : Kruy Vanna : https://github.com/kruyvanna
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var symbolMap = {
+            1: '១',
+            2: '២',
+            3: '៣',
+            4: '៤',
+            5: '៥',
+            6: '៦',
+            7: '៧',
+            8: '៨',
+            9: '៩',
+            0: '០',
+        },
+        numberMap = {
+            '១': '1',
+            '២': '2',
+            '៣': '3',
+            '៤': '4',
+            '៥': '5',
+            '៦': '6',
+            '៧': '7',
+            '៨': '8',
+            '៩': '9',
+            '០': '0',
+        };
+
+    var km = moment.defineLocale('km', {
+        months: 'មករា_កុម្ភៈ_មីនា_មេសា_ឧសភា_មិថុនា_កក្កដា_សីហា_កញ្ញា_តុលា_វិច្ឆិកា_ធ្នូ'.split(
+            '_'
+        ),
+        monthsShort:
+            'មករា_កុម្ភៈ_មីនា_មេសា_ឧសភា_មិថុនា_កក្កដា_សីហា_កញ្ញា_តុលា_វិច្ឆិកា_ធ្នូ'.split(
+                '_'
+            ),
+        weekdays: 'អាទិត្យ_ច័ន្ទ_អង្គារ_ពុធ_ព្រហស្បតិ៍_សុក្រ_សៅរ៍'.split('_'),
+        weekdaysShort: 'អា_ច_អ_ព_ព្រ_សុ_ស'.split('_'),
+        weekdaysMin: 'អា_ច_អ_ព_ព្រ_សុ_ស'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ព្រឹក|ល្ងាច/,
+        isPM: function (input) {
+            return input === 'ល្ងាច';
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ព្រឹក';
+            } else {
+                return 'ល្ងាច';
+            }
+        },
+        calendar: {
+            sameDay: '[ថ្ងៃនេះ ម៉ោង] LT',
+            nextDay: '[ស្អែក ម៉ោង] LT',
+            nextWeek: 'dddd [ម៉ោង] LT',
+            lastDay: '[ម្សិលមិញ ម៉ោង] LT',
+            lastWeek: 'dddd [សប្តាហ៍មុន] [ម៉ោង] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%sទៀត',
+            past: '%sមុន',
+            s: 'ប៉ុន្មានវិនាទី',
+            ss: '%d វិនាទី',
+            m: 'មួយនាទី',
+            mm: '%d នាទី',
+            h: 'មួយម៉ោង',
+            hh: '%d ម៉ោង',
+            d: 'មួយថ្ងៃ',
+            dd: '%d ថ្ងៃ',
+            M: 'មួយខែ',
+            MM: '%d ខែ',
+            y: 'មួយឆ្នាំ',
+            yy: '%d ឆ្នាំ',
+        },
+        dayOfMonthOrdinalParse: /ទី\d{1,2}/,
+        ordinal: 'ទី%d',
+        preparse: function (string) {
+            return string.replace(/[១២៣៤៥៦៧៨៩០]/g, function (match) {
+                return numberMap[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap[match];
+            });
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return km;
+
+})));
diff --git a/backend/node_modules/moment/locale/kn.js b/backend/node_modules/moment/locale/kn.js
new file mode 100644
index 0000000..5fe70b0
--- /dev/null
+++ b/backend/node_modules/moment/locale/kn.js
@@ -0,0 +1,135 @@
+//! moment.js locale configuration
+//! locale : Kannada [kn]
+//! author : Rajeev Naik : https://github.com/rajeevnaikte
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var symbolMap = {
+            1: '೧',
+            2: '೨',
+            3: '೩',
+            4: '೪',
+            5: '೫',
+            6: '೬',
+            7: '೭',
+            8: '೮',
+            9: '೯',
+            0: '೦',
+        },
+        numberMap = {
+            '೧': '1',
+            '೨': '2',
+            '೩': '3',
+            '೪': '4',
+            '೫': '5',
+            '೬': '6',
+            '೭': '7',
+            '೮': '8',
+            '೯': '9',
+            '೦': '0',
+        };
+
+    var kn = moment.defineLocale('kn', {
+        months: 'ಜನವರಿ_ಫೆಬ್ರವರಿ_ಮಾರ್ಚ್_ಏಪ್ರಿಲ್_ಮೇ_ಜೂನ್_ಜುಲೈ_ಆಗಸ್ಟ್_ಸೆಪ್ಟೆಂಬರ್_ಅಕ್ಟೋಬರ್_ನವೆಂಬರ್_ಡಿಸೆಂಬರ್'.split(
+            '_'
+        ),
+        monthsShort:
+            'ಜನ_ಫೆಬ್ರ_ಮಾರ್ಚ್_ಏಪ್ರಿಲ್_ಮೇ_ಜೂನ್_ಜುಲೈ_ಆಗಸ್ಟ್_ಸೆಪ್ಟೆಂ_ಅಕ್ಟೋ_ನವೆಂ_ಡಿಸೆಂ'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'ಭಾನುವಾರ_ಸೋಮವಾರ_ಮಂಗಳವಾರ_ಬುಧವಾರ_ಗುರುವಾರ_ಶುಕ್ರವಾರ_ಶನಿವಾರ'.split(
+            '_'
+        ),
+        weekdaysShort: 'ಭಾನು_ಸೋಮ_ಮಂಗಳ_ಬುಧ_ಗುರು_ಶುಕ್ರ_ಶನಿ'.split('_'),
+        weekdaysMin: 'ಭಾ_ಸೋ_ಮಂ_ಬು_ಗು_ಶು_ಶ'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm',
+            LTS: 'A h:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm',
+        },
+        calendar: {
+            sameDay: '[ಇಂದು] LT',
+            nextDay: '[ನಾಳೆ] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[ನಿನ್ನೆ] LT',
+            lastWeek: '[ಕೊನೆಯ] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s ನಂತರ',
+            past: '%s ಹಿಂದೆ',
+            s: 'ಕೆಲವು ಕ್ಷಣಗಳು',
+            ss: '%d ಸೆಕೆಂಡುಗಳು',
+            m: 'ಒಂದು ನಿಮಿಷ',
+            mm: '%d ನಿಮಿಷ',
+            h: 'ಒಂದು ಗಂಟೆ',
+            hh: '%d ಗಂಟೆ',
+            d: 'ಒಂದು ದಿನ',
+            dd: '%d ದಿನ',
+            M: 'ಒಂದು ತಿಂಗಳು',
+            MM: '%d ತಿಂಗಳು',
+            y: 'ಒಂದು ವರ್ಷ',
+            yy: '%d ವರ್ಷ',
+        },
+        preparse: function (string) {
+            return string.replace(/[೧೨೩೪೫೬೭೮೯೦]/g, function (match) {
+                return numberMap[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap[match];
+            });
+        },
+        meridiemParse: /ರಾತ್ರಿ|ಬೆಳಿಗ್ಗೆ|ಮಧ್ಯಾಹ್ನ|ಸಂಜೆ/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'ರಾತ್ರಿ') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'ಬೆಳಿಗ್ಗೆ') {
+                return hour;
+            } else if (meridiem === 'ಮಧ್ಯಾಹ್ನ') {
+                return hour >= 10 ? hour : hour + 12;
+            } else if (meridiem === 'ಸಂಜೆ') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'ರಾತ್ರಿ';
+            } else if (hour < 10) {
+                return 'ಬೆಳಿಗ್ಗೆ';
+            } else if (hour < 17) {
+                return 'ಮಧ್ಯಾಹ್ನ';
+            } else if (hour < 20) {
+                return 'ಸಂಜೆ';
+            } else {
+                return 'ರಾತ್ರಿ';
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(ನೇ)/,
+        ordinal: function (number) {
+            return number + 'ನೇ';
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    return kn;
+
+})));
diff --git a/backend/node_modules/moment/locale/ko.js b/backend/node_modules/moment/locale/ko.js
new file mode 100644
index 0000000..c81c13e
--- /dev/null
+++ b/backend/node_modules/moment/locale/ko.js
@@ -0,0 +1,86 @@
+//! moment.js locale configuration
+//! locale : Korean [ko]
+//! author : Kyungwook, Park : https://github.com/kyungw00k
+//! author : Jeeeyul Lee <jeeeyul@gmail.com>
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var ko = moment.defineLocale('ko', {
+        months: '1월_2월_3월_4월_5월_6월_7월_8월_9월_10월_11월_12월'.split('_'),
+        monthsShort: '1월_2월_3월_4월_5월_6월_7월_8월_9월_10월_11월_12월'.split(
+            '_'
+        ),
+        weekdays: '일요일_월요일_화요일_수요일_목요일_금요일_토요일'.split('_'),
+        weekdaysShort: '일_월_화_수_목_금_토'.split('_'),
+        weekdaysMin: '일_월_화_수_목_금_토'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm',
+            LTS: 'A h:mm:ss',
+            L: 'YYYY.MM.DD.',
+            LL: 'YYYY년 MMMM D일',
+            LLL: 'YYYY년 MMMM D일 A h:mm',
+            LLLL: 'YYYY년 MMMM D일 dddd A h:mm',
+            l: 'YYYY.MM.DD.',
+            ll: 'YYYY년 MMMM D일',
+            lll: 'YYYY년 MMMM D일 A h:mm',
+            llll: 'YYYY년 MMMM D일 dddd A h:mm',
+        },
+        calendar: {
+            sameDay: '오늘 LT',
+            nextDay: '내일 LT',
+            nextWeek: 'dddd LT',
+            lastDay: '어제 LT',
+            lastWeek: '지난주 dddd LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s 후',
+            past: '%s 전',
+            s: '몇 초',
+            ss: '%d초',
+            m: '1분',
+            mm: '%d분',
+            h: '한 시간',
+            hh: '%d시간',
+            d: '하루',
+            dd: '%d일',
+            M: '한 달',
+            MM: '%d달',
+            y: '일 년',
+            yy: '%d년',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(일|월|주)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'DDD':
+                    return number + '일';
+                case 'M':
+                    return number + '월';
+                case 'w':
+                case 'W':
+                    return number + '주';
+                default:
+                    return number;
+            }
+        },
+        meridiemParse: /오전|오후/,
+        isPM: function (token) {
+            return token === '오후';
+        },
+        meridiem: function (hour, minute, isUpper) {
+            return hour < 12 ? '오전' : '오후';
+        },
+    });
+
+    return ko;
+
+})));
diff --git a/backend/node_modules/moment/locale/ku-kmr.js b/backend/node_modules/moment/locale/ku-kmr.js
new file mode 100644
index 0000000..8ba23ed
--- /dev/null
+++ b/backend/node_modules/moment/locale/ku-kmr.js
@@ -0,0 +1,125 @@
+//! moment.js locale configuration
+//! locale : Northern Kurdish [ku-kmr]
+//! authors : Mazlum Özdogan : https://github.com/mergehez
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    function processRelativeTime(num, withoutSuffix, key, isFuture) {
+        var format = {
+            s: ['çend sanîye', 'çend sanîyeyan'],
+            ss: [num + ' sanîye', num + ' sanîyeyan'],
+            m: ['deqîqeyek', 'deqîqeyekê'],
+            mm: [num + ' deqîqe', num + ' deqîqeyan'],
+            h: ['saetek', 'saetekê'],
+            hh: [num + ' saet', num + ' saetan'],
+            d: ['rojek', 'rojekê'],
+            dd: [num + ' roj', num + ' rojan'],
+            w: ['hefteyek', 'hefteyekê'],
+            ww: [num + ' hefte', num + ' hefteyan'],
+            M: ['mehek', 'mehekê'],
+            MM: [num + ' meh', num + ' mehan'],
+            y: ['salek', 'salekê'],
+            yy: [num + ' sal', num + ' salan'],
+        };
+        return withoutSuffix ? format[key][0] : format[key][1];
+    }
+    // function obliqueNumSuffix(num) {
+    //     if(num.includes(':'))
+    //         num = parseInt(num.split(':')[0]);
+    //     else
+    //         num = parseInt(num);
+    //     return num == 0 || num % 10 == 1 ? 'ê'
+    //                         : (num > 10 && num % 10 == 0 ? 'î' : 'an');
+    // }
+    function ezafeNumSuffix(num) {
+        num = '' + num;
+        var l = num.substring(num.length - 1),
+            ll = num.length > 1 ? num.substring(num.length - 2) : '';
+        if (
+            !(ll == 12 || ll == 13) &&
+            (l == '2' || l == '3' || ll == '50' || l == '70' || l == '80')
+        )
+            return 'yê';
+        return 'ê';
+    }
+
+    var kuKmr = moment.defineLocale('ku-kmr', {
+        // According to the spelling rules defined by the work group of Weqfa Mezopotamyayê (Mesopotamia Foundation)
+        // this should be: 'Kanûna Paşîn_Sibat_Adar_Nîsan_Gulan_Hezîran_Tîrmeh_Tebax_Îlon_Çirîya Pêşîn_Çirîya Paşîn_Kanûna Pêşîn'
+        // But the names below are more well known and handy
+        months: 'Rêbendan_Sibat_Adar_Nîsan_Gulan_Hezîran_Tîrmeh_Tebax_Îlon_Cotmeh_Mijdar_Berfanbar'.split(
+            '_'
+        ),
+        monthsShort: 'Rêb_Sib_Ada_Nîs_Gul_Hez_Tîr_Teb_Îlo_Cot_Mij_Ber'.split('_'),
+        monthsParseExact: true,
+        weekdays: 'Yekşem_Duşem_Sêşem_Çarşem_Pêncşem_În_Şemî'.split('_'),
+        weekdaysShort: 'Yek_Du_Sê_Çar_Pên_În_Şem'.split('_'),
+        weekdaysMin: 'Ye_Du_Sê_Ça_Pê_În_Şe'.split('_'),
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 12) {
+                return isLower ? 'bn' : 'BN';
+            } else {
+                return isLower ? 'pn' : 'PN';
+            }
+        },
+        meridiemParse: /bn|BN|pn|PN/,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'Do MMMM[a] YYYY[an]',
+            LLL: 'Do MMMM[a] YYYY[an] HH:mm',
+            LLLL: 'dddd, Do MMMM[a] YYYY[an] HH:mm',
+            ll: 'Do MMM[.] YYYY[an]',
+            lll: 'Do MMM[.] YYYY[an] HH:mm',
+            llll: 'ddd[.], Do MMM[.] YYYY[an] HH:mm',
+        },
+        calendar: {
+            sameDay: '[Îro di saet] LT [de]',
+            nextDay: '[Sibê di saet] LT [de]',
+            nextWeek: 'dddd [di saet] LT [de]',
+            lastDay: '[Duh di saet] LT [de]',
+            lastWeek: 'dddd[a borî di saet] LT [de]',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'di %s de',
+            past: 'berî %s',
+            s: processRelativeTime,
+            ss: processRelativeTime,
+            m: processRelativeTime,
+            mm: processRelativeTime,
+            h: processRelativeTime,
+            hh: processRelativeTime,
+            d: processRelativeTime,
+            dd: processRelativeTime,
+            w: processRelativeTime,
+            ww: processRelativeTime,
+            M: processRelativeTime,
+            MM: processRelativeTime,
+            y: processRelativeTime,
+            yy: processRelativeTime,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(?:yê|ê|\.)/,
+        ordinal: function (num, period) {
+            var p = period.toLowerCase();
+            if (p.includes('w') || p.includes('m')) return num + '.';
+
+            return num + ezafeNumSuffix(num);
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return kuKmr;
+
+})));
diff --git a/backend/node_modules/moment/locale/ku.js b/backend/node_modules/moment/locale/ku.js
new file mode 100644
index 0000000..71c56a1
--- /dev/null
+++ b/backend/node_modules/moment/locale/ku.js
@@ -0,0 +1,129 @@
+//! moment.js locale configuration
+//! locale : Kurdish [ku]
+//! author : Shahram Mebashar : https://github.com/ShahramMebashar
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var symbolMap = {
+            1: '١',
+            2: '٢',
+            3: '٣',
+            4: '٤',
+            5: '٥',
+            6: '٦',
+            7: '٧',
+            8: '٨',
+            9: '٩',
+            0: '٠',
+        },
+        numberMap = {
+            '١': '1',
+            '٢': '2',
+            '٣': '3',
+            '٤': '4',
+            '٥': '5',
+            '٦': '6',
+            '٧': '7',
+            '٨': '8',
+            '٩': '9',
+            '٠': '0',
+        },
+        months = [
+            'کانونی دووەم',
+            'شوبات',
+            'ئازار',
+            'نیسان',
+            'ئایار',
+            'حوزەیران',
+            'تەمموز',
+            'ئاب',
+            'ئەیلوول',
+            'تشرینی یەكەم',
+            'تشرینی دووەم',
+            'كانونی یەکەم',
+        ];
+
+    var ku = moment.defineLocale('ku', {
+        months: months,
+        monthsShort: months,
+        weekdays:
+            'یه‌كشه‌ممه‌_دووشه‌ممه‌_سێشه‌ممه‌_چوارشه‌ممه‌_پێنجشه‌ممه‌_هه‌ینی_شه‌ممه‌'.split(
+                '_'
+            ),
+        weekdaysShort:
+            'یه‌كشه‌م_دووشه‌م_سێشه‌م_چوارشه‌م_پێنجشه‌م_هه‌ینی_شه‌ممه‌'.split('_'),
+        weekdaysMin: 'ی_د_س_چ_پ_ه_ش'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ئێواره‌|به‌یانی/,
+        isPM: function (input) {
+            return /ئێواره‌/.test(input);
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'به‌یانی';
+            } else {
+                return 'ئێواره‌';
+            }
+        },
+        calendar: {
+            sameDay: '[ئه‌مرۆ كاتژمێر] LT',
+            nextDay: '[به‌یانی كاتژمێر] LT',
+            nextWeek: 'dddd [كاتژمێر] LT',
+            lastDay: '[دوێنێ كاتژمێر] LT',
+            lastWeek: 'dddd [كاتژمێر] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'له‌ %s',
+            past: '%s',
+            s: 'چه‌ند چركه‌یه‌ك',
+            ss: 'چركه‌ %d',
+            m: 'یه‌ك خوله‌ك',
+            mm: '%d خوله‌ك',
+            h: 'یه‌ك كاتژمێر',
+            hh: '%d كاتژمێر',
+            d: 'یه‌ك ڕۆژ',
+            dd: '%d ڕۆژ',
+            M: 'یه‌ك مانگ',
+            MM: '%d مانگ',
+            y: 'یه‌ك ساڵ',
+            yy: '%d ساڵ',
+        },
+        preparse: function (string) {
+            return string
+                .replace(/[١٢٣٤٥٦٧٨٩٠]/g, function (match) {
+                    return numberMap[match];
+                })
+                .replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string
+                .replace(/\d/g, function (match) {
+                    return symbolMap[match];
+                })
+                .replace(/,/g, '،');
+        },
+        week: {
+            dow: 6, // Saturday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    return ku;
+
+})));
diff --git a/backend/node_modules/moment/locale/ky.js b/backend/node_modules/moment/locale/ky.js
new file mode 100644
index 0000000..6dce606
--- /dev/null
+++ b/backend/node_modules/moment/locale/ky.js
@@ -0,0 +1,95 @@
+//! moment.js locale configuration
+//! locale : Kyrgyz [ky]
+//! author : Chyngyz Arystan uulu : https://github.com/chyngyz
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var suffixes = {
+        0: '-чү',
+        1: '-чи',
+        2: '-чи',
+        3: '-чү',
+        4: '-чү',
+        5: '-чи',
+        6: '-чы',
+        7: '-чи',
+        8: '-чи',
+        9: '-чу',
+        10: '-чу',
+        20: '-чы',
+        30: '-чу',
+        40: '-чы',
+        50: '-чү',
+        60: '-чы',
+        70: '-чи',
+        80: '-чи',
+        90: '-чу',
+        100: '-чү',
+    };
+
+    var ky = moment.defineLocale('ky', {
+        months: 'январь_февраль_март_апрель_май_июнь_июль_август_сентябрь_октябрь_ноябрь_декабрь'.split(
+            '_'
+        ),
+        monthsShort: 'янв_фев_март_апр_май_июнь_июль_авг_сен_окт_ноя_дек'.split(
+            '_'
+        ),
+        weekdays: 'Жекшемби_Дүйшөмбү_Шейшемби_Шаршемби_Бейшемби_Жума_Ишемби'.split(
+            '_'
+        ),
+        weekdaysShort: 'Жек_Дүй_Шей_Шар_Бей_Жум_Ише'.split('_'),
+        weekdaysMin: 'Жк_Дй_Шй_Шр_Бй_Жм_Иш'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Бүгүн саат] LT',
+            nextDay: '[Эртең саат] LT',
+            nextWeek: 'dddd [саат] LT',
+            lastDay: '[Кечээ саат] LT',
+            lastWeek: '[Өткөн аптанын] dddd [күнү] [саат] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s ичинде',
+            past: '%s мурун',
+            s: 'бирнече секунд',
+            ss: '%d секунд',
+            m: 'бир мүнөт',
+            mm: '%d мүнөт',
+            h: 'бир саат',
+            hh: '%d саат',
+            d: 'бир күн',
+            dd: '%d күн',
+            M: 'бир ай',
+            MM: '%d ай',
+            y: 'бир жыл',
+            yy: '%d жыл',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(чи|чы|чү|чу)/,
+        ordinal: function (number) {
+            var a = number % 10,
+                b = number >= 100 ? 100 : null;
+            return number + (suffixes[number] || suffixes[a] || suffixes[b]);
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    return ky;
+
+})));
diff --git a/backend/node_modules/moment/locale/lb.js b/backend/node_modules/moment/locale/lb.js
new file mode 100644
index 0000000..ffcb758
--- /dev/null
+++ b/backend/node_modules/moment/locale/lb.js
@@ -0,0 +1,148 @@
+//! moment.js locale configuration
+//! locale : Luxembourgish [lb]
+//! author : mweimerskirch : https://github.com/mweimerskirch
+//! author : David Raison : https://github.com/kwisatz
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    function processRelativeTime(number, withoutSuffix, key, isFuture) {
+        var format = {
+            m: ['eng Minutt', 'enger Minutt'],
+            h: ['eng Stonn', 'enger Stonn'],
+            d: ['een Dag', 'engem Dag'],
+            M: ['ee Mount', 'engem Mount'],
+            y: ['ee Joer', 'engem Joer'],
+        };
+        return withoutSuffix ? format[key][0] : format[key][1];
+    }
+    function processFutureTime(string) {
+        var number = string.substr(0, string.indexOf(' '));
+        if (eifelerRegelAppliesToNumber(number)) {
+            return 'a ' + string;
+        }
+        return 'an ' + string;
+    }
+    function processPastTime(string) {
+        var number = string.substr(0, string.indexOf(' '));
+        if (eifelerRegelAppliesToNumber(number)) {
+            return 'viru ' + string;
+        }
+        return 'virun ' + string;
+    }
+    /**
+     * Returns true if the word before the given number loses the '-n' ending.
+     * e.g. 'an 10 Deeg' but 'a 5 Deeg'
+     *
+     * @param number {integer}
+     * @returns {boolean}
+     */
+    function eifelerRegelAppliesToNumber(number) {
+        number = parseInt(number, 10);
+        if (isNaN(number)) {
+            return false;
+        }
+        if (number < 0) {
+            // Negative Number --> always true
+            return true;
+        } else if (number < 10) {
+            // Only 1 digit
+            if (4 <= number && number <= 7) {
+                return true;
+            }
+            return false;
+        } else if (number < 100) {
+            // 2 digits
+            var lastDigit = number % 10,
+                firstDigit = number / 10;
+            if (lastDigit === 0) {
+                return eifelerRegelAppliesToNumber(firstDigit);
+            }
+            return eifelerRegelAppliesToNumber(lastDigit);
+        } else if (number < 10000) {
+            // 3 or 4 digits --> recursively check first digit
+            while (number >= 10) {
+                number = number / 10;
+            }
+            return eifelerRegelAppliesToNumber(number);
+        } else {
+            // Anything larger than 4 digits: recursively check first n-3 digits
+            number = number / 1000;
+            return eifelerRegelAppliesToNumber(number);
+        }
+    }
+
+    var lb = moment.defineLocale('lb', {
+        months: 'Januar_Februar_Mäerz_Abrëll_Mee_Juni_Juli_August_September_Oktober_November_Dezember'.split(
+            '_'
+        ),
+        monthsShort:
+            'Jan._Febr._Mrz._Abr._Mee_Jun._Jul._Aug._Sept._Okt._Nov._Dez.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays:
+            'Sonndeg_Méindeg_Dënschdeg_Mëttwoch_Donneschdeg_Freideg_Samschdeg'.split(
+                '_'
+            ),
+        weekdaysShort: 'So._Mé._Dë._Më._Do._Fr._Sa.'.split('_'),
+        weekdaysMin: 'So_Mé_Dë_Më_Do_Fr_Sa'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm [Auer]',
+            LTS: 'H:mm:ss [Auer]',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY H:mm [Auer]',
+            LLLL: 'dddd, D. MMMM YYYY H:mm [Auer]',
+        },
+        calendar: {
+            sameDay: '[Haut um] LT',
+            sameElse: 'L',
+            nextDay: '[Muer um] LT',
+            nextWeek: 'dddd [um] LT',
+            lastDay: '[Gëschter um] LT',
+            lastWeek: function () {
+                // Different date string for 'Dënschdeg' (Tuesday) and 'Donneschdeg' (Thursday) due to phonological rule
+                switch (this.day()) {
+                    case 2:
+                    case 4:
+                        return '[Leschten] dddd [um] LT';
+                    default:
+                        return '[Leschte] dddd [um] LT';
+                }
+            },
+        },
+        relativeTime: {
+            future: processFutureTime,
+            past: processPastTime,
+            s: 'e puer Sekonnen',
+            ss: '%d Sekonnen',
+            m: processRelativeTime,
+            mm: '%d Minutten',
+            h: processRelativeTime,
+            hh: '%d Stonnen',
+            d: processRelativeTime,
+            dd: '%d Deeg',
+            M: processRelativeTime,
+            MM: '%d Méint',
+            y: processRelativeTime,
+            yy: '%d Joer',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return lb;
+
+})));
diff --git a/backend/node_modules/moment/locale/lo.js b/backend/node_modules/moment/locale/lo.js
new file mode 100644
index 0000000..18fc666
--- /dev/null
+++ b/backend/node_modules/moment/locale/lo.js
@@ -0,0 +1,77 @@
+//! moment.js locale configuration
+//! locale : Lao [lo]
+//! author : Ryan Hart : https://github.com/ryanhart2
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var lo = moment.defineLocale('lo', {
+        months: 'ມັງກອນ_ກຸມພາ_ມີນາ_ເມສາ_ພຶດສະພາ_ມິຖຸນາ_ກໍລະກົດ_ສິງຫາ_ກັນຍາ_ຕຸລາ_ພະຈິກ_ທັນວາ'.split(
+            '_'
+        ),
+        monthsShort:
+            'ມັງກອນ_ກຸມພາ_ມີນາ_ເມສາ_ພຶດສະພາ_ມິຖຸນາ_ກໍລະກົດ_ສິງຫາ_ກັນຍາ_ຕຸລາ_ພະຈິກ_ທັນວາ'.split(
+                '_'
+            ),
+        weekdays: 'ອາທິດ_ຈັນ_ອັງຄານ_ພຸດ_ພະຫັດ_ສຸກ_ເສົາ'.split('_'),
+        weekdaysShort: 'ທິດ_ຈັນ_ອັງຄານ_ພຸດ_ພະຫັດ_ສຸກ_ເສົາ'.split('_'),
+        weekdaysMin: 'ທ_ຈ_ອຄ_ພ_ພຫ_ສກ_ສ'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'ວັນdddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ຕອນເຊົ້າ|ຕອນແລງ/,
+        isPM: function (input) {
+            return input === 'ຕອນແລງ';
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ຕອນເຊົ້າ';
+            } else {
+                return 'ຕອນແລງ';
+            }
+        },
+        calendar: {
+            sameDay: '[ມື້ນີ້ເວລາ] LT',
+            nextDay: '[ມື້ອື່ນເວລາ] LT',
+            nextWeek: '[ວັນ]dddd[ໜ້າເວລາ] LT',
+            lastDay: '[ມື້ວານນີ້ເວລາ] LT',
+            lastWeek: '[ວັນ]dddd[ແລ້ວນີ້ເວລາ] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'ອີກ %s',
+            past: '%sຜ່ານມາ',
+            s: 'ບໍ່ເທົ່າໃດວິນາທີ',
+            ss: '%d ວິນາທີ',
+            m: '1 ນາທີ',
+            mm: '%d ນາທີ',
+            h: '1 ຊົ່ວໂມງ',
+            hh: '%d ຊົ່ວໂມງ',
+            d: '1 ມື້',
+            dd: '%d ມື້',
+            M: '1 ເດືອນ',
+            MM: '%d ເດືອນ',
+            y: '1 ປີ',
+            yy: '%d ປີ',
+        },
+        dayOfMonthOrdinalParse: /(ທີ່)\d{1,2}/,
+        ordinal: function (number) {
+            return 'ທີ່' + number;
+        },
+    });
+
+    return lo;
+
+})));
diff --git a/backend/node_modules/moment/locale/lt.js b/backend/node_modules/moment/locale/lt.js
new file mode 100644
index 0000000..4140cf8
--- /dev/null
+++ b/backend/node_modules/moment/locale/lt.js
@@ -0,0 +1,136 @@
+//! moment.js locale configuration
+//! locale : Lithuanian [lt]
+//! author : Mindaugas Mozūras : https://github.com/mmozuras
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var units = {
+        ss: 'sekundė_sekundžių_sekundes',
+        m: 'minutė_minutės_minutę',
+        mm: 'minutės_minučių_minutes',
+        h: 'valanda_valandos_valandą',
+        hh: 'valandos_valandų_valandas',
+        d: 'diena_dienos_dieną',
+        dd: 'dienos_dienų_dienas',
+        M: 'mėnuo_mėnesio_mėnesį',
+        MM: 'mėnesiai_mėnesių_mėnesius',
+        y: 'metai_metų_metus',
+        yy: 'metai_metų_metus',
+    };
+    function translateSeconds(number, withoutSuffix, key, isFuture) {
+        if (withoutSuffix) {
+            return 'kelios sekundės';
+        } else {
+            return isFuture ? 'kelių sekundžių' : 'kelias sekundes';
+        }
+    }
+    function translateSingular(number, withoutSuffix, key, isFuture) {
+        return withoutSuffix
+            ? forms(key)[0]
+            : isFuture
+              ? forms(key)[1]
+              : forms(key)[2];
+    }
+    function special(number) {
+        return number % 10 === 0 || (number > 10 && number < 20);
+    }
+    function forms(key) {
+        return units[key].split('_');
+    }
+    function translate(number, withoutSuffix, key, isFuture) {
+        var result = number + ' ';
+        if (number === 1) {
+            return (
+                result + translateSingular(number, withoutSuffix, key[0], isFuture)
+            );
+        } else if (withoutSuffix) {
+            return result + (special(number) ? forms(key)[1] : forms(key)[0]);
+        } else {
+            if (isFuture) {
+                return result + forms(key)[1];
+            } else {
+                return result + (special(number) ? forms(key)[1] : forms(key)[2]);
+            }
+        }
+    }
+    var lt = moment.defineLocale('lt', {
+        months: {
+            format: 'sausio_vasario_kovo_balandžio_gegužės_birželio_liepos_rugpjūčio_rugsėjo_spalio_lapkričio_gruodžio'.split(
+                '_'
+            ),
+            standalone:
+                'sausis_vasaris_kovas_balandis_gegužė_birželis_liepa_rugpjūtis_rugsėjis_spalis_lapkritis_gruodis'.split(
+                    '_'
+                ),
+            isFormat: /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?|MMMM?(\[[^\[\]]*\]|\s)+D[oD]?/,
+        },
+        monthsShort: 'sau_vas_kov_bal_geg_bir_lie_rgp_rgs_spa_lap_grd'.split('_'),
+        weekdays: {
+            format: 'sekmadienį_pirmadienį_antradienį_trečiadienį_ketvirtadienį_penktadienį_šeštadienį'.split(
+                '_'
+            ),
+            standalone:
+                'sekmadienis_pirmadienis_antradienis_trečiadienis_ketvirtadienis_penktadienis_šeštadienis'.split(
+                    '_'
+                ),
+            isFormat: /dddd HH:mm/,
+        },
+        weekdaysShort: 'Sek_Pir_Ant_Tre_Ket_Pen_Šeš'.split('_'),
+        weekdaysMin: 'S_P_A_T_K_Pn_Š'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY-MM-DD',
+            LL: 'YYYY [m.] MMMM D [d.]',
+            LLL: 'YYYY [m.] MMMM D [d.], HH:mm [val.]',
+            LLLL: 'YYYY [m.] MMMM D [d.], dddd, HH:mm [val.]',
+            l: 'YYYY-MM-DD',
+            ll: 'YYYY [m.] MMMM D [d.]',
+            lll: 'YYYY [m.] MMMM D [d.], HH:mm [val.]',
+            llll: 'YYYY [m.] MMMM D [d.], ddd, HH:mm [val.]',
+        },
+        calendar: {
+            sameDay: '[Šiandien] LT',
+            nextDay: '[Rytoj] LT',
+            nextWeek: 'dddd LT',
+            lastDay: '[Vakar] LT',
+            lastWeek: '[Praėjusį] dddd LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'po %s',
+            past: 'prieš %s',
+            s: translateSeconds,
+            ss: translate,
+            m: translateSingular,
+            mm: translate,
+            h: translateSingular,
+            hh: translate,
+            d: translateSingular,
+            dd: translate,
+            M: translateSingular,
+            MM: translate,
+            y: translateSingular,
+            yy: translate,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-oji/,
+        ordinal: function (number) {
+            return number + '-oji';
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return lt;
+
+})));
diff --git a/backend/node_modules/moment/locale/lv.js b/backend/node_modules/moment/locale/lv.js
new file mode 100644
index 0000000..109fdfe
--- /dev/null
+++ b/backend/node_modules/moment/locale/lv.js
@@ -0,0 +1,105 @@
+//! moment.js locale configuration
+//! locale : Latvian [lv]
+//! author : Kristaps Karlsons : https://github.com/skakri
+//! author : Jānis Elmeris : https://github.com/JanisE
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var units = {
+        ss: 'sekundes_sekundēm_sekunde_sekundes'.split('_'),
+        m: 'minūtes_minūtēm_minūte_minūtes'.split('_'),
+        mm: 'minūtes_minūtēm_minūte_minūtes'.split('_'),
+        h: 'stundas_stundām_stunda_stundas'.split('_'),
+        hh: 'stundas_stundām_stunda_stundas'.split('_'),
+        d: 'dienas_dienām_diena_dienas'.split('_'),
+        dd: 'dienas_dienām_diena_dienas'.split('_'),
+        M: 'mēneša_mēnešiem_mēnesis_mēneši'.split('_'),
+        MM: 'mēneša_mēnešiem_mēnesis_mēneši'.split('_'),
+        y: 'gada_gadiem_gads_gadi'.split('_'),
+        yy: 'gada_gadiem_gads_gadi'.split('_'),
+    };
+    /**
+     * @param withoutSuffix boolean true = a length of time; false = before/after a period of time.
+     */
+    function format(forms, number, withoutSuffix) {
+        if (withoutSuffix) {
+            // E.g. "21 minūte", "3 minūtes".
+            return number % 10 === 1 && number % 100 !== 11 ? forms[2] : forms[3];
+        } else {
+            // E.g. "21 minūtes" as in "pēc 21 minūtes".
+            // E.g. "3 minūtēm" as in "pēc 3 minūtēm".
+            return number % 10 === 1 && number % 100 !== 11 ? forms[0] : forms[1];
+        }
+    }
+    function relativeTimeWithPlural(number, withoutSuffix, key) {
+        return number + ' ' + format(units[key], number, withoutSuffix);
+    }
+    function relativeTimeWithSingular(number, withoutSuffix, key) {
+        return format(units[key], number, withoutSuffix);
+    }
+    function relativeSeconds(number, withoutSuffix) {
+        return withoutSuffix ? 'dažas sekundes' : 'dažām sekundēm';
+    }
+
+    var lv = moment.defineLocale('lv', {
+        months: 'janvāris_februāris_marts_aprīlis_maijs_jūnijs_jūlijs_augusts_septembris_oktobris_novembris_decembris'.split(
+            '_'
+        ),
+        monthsShort: 'jan_feb_mar_apr_mai_jūn_jūl_aug_sep_okt_nov_dec'.split('_'),
+        weekdays:
+            'svētdiena_pirmdiena_otrdiena_trešdiena_ceturtdiena_piektdiena_sestdiena'.split(
+                '_'
+            ),
+        weekdaysShort: 'Sv_P_O_T_C_Pk_S'.split('_'),
+        weekdaysMin: 'Sv_P_O_T_C_Pk_S'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY.',
+            LL: 'YYYY. [gada] D. MMMM',
+            LLL: 'YYYY. [gada] D. MMMM, HH:mm',
+            LLLL: 'YYYY. [gada] D. MMMM, dddd, HH:mm',
+        },
+        calendar: {
+            sameDay: '[Šodien pulksten] LT',
+            nextDay: '[Rīt pulksten] LT',
+            nextWeek: 'dddd [pulksten] LT',
+            lastDay: '[Vakar pulksten] LT',
+            lastWeek: '[Pagājušā] dddd [pulksten] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'pēc %s',
+            past: 'pirms %s',
+            s: relativeSeconds,
+            ss: relativeTimeWithPlural,
+            m: relativeTimeWithSingular,
+            mm: relativeTimeWithPlural,
+            h: relativeTimeWithSingular,
+            hh: relativeTimeWithPlural,
+            d: relativeTimeWithSingular,
+            dd: relativeTimeWithPlural,
+            M: relativeTimeWithSingular,
+            MM: relativeTimeWithPlural,
+            y: relativeTimeWithSingular,
+            yy: relativeTimeWithPlural,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return lv;
+
+})));
diff --git a/backend/node_modules/moment/locale/me.js b/backend/node_modules/moment/locale/me.js
new file mode 100644
index 0000000..9b2583d
--- /dev/null
+++ b/backend/node_modules/moment/locale/me.js
@@ -0,0 +1,128 @@
+//! moment.js locale configuration
+//! locale : Montenegrin [me]
+//! author : Miodrag Nikač <miodrag@restartit.me> : https://github.com/miodragnikac
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var translator = {
+        words: {
+            //Different grammatical cases
+            ss: ['sekund', 'sekunda', 'sekundi'],
+            m: ['jedan minut', 'jednog minuta'],
+            mm: ['minut', 'minuta', 'minuta'],
+            h: ['jedan sat', 'jednog sata'],
+            hh: ['sat', 'sata', 'sati'],
+            dd: ['dan', 'dana', 'dana'],
+            MM: ['mjesec', 'mjeseca', 'mjeseci'],
+            yy: ['godina', 'godine', 'godina'],
+        },
+        correctGrammaticalCase: function (number, wordKey) {
+            return number === 1
+                ? wordKey[0]
+                : number >= 2 && number <= 4
+                  ? wordKey[1]
+                  : wordKey[2];
+        },
+        translate: function (number, withoutSuffix, key) {
+            var wordKey = translator.words[key];
+            if (key.length === 1) {
+                return withoutSuffix ? wordKey[0] : wordKey[1];
+            } else {
+                return (
+                    number +
+                    ' ' +
+                    translator.correctGrammaticalCase(number, wordKey)
+                );
+            }
+        },
+    };
+
+    var me = moment.defineLocale('me', {
+        months: 'januar_februar_mart_april_maj_jun_jul_avgust_septembar_oktobar_novembar_decembar'.split(
+            '_'
+        ),
+        monthsShort:
+            'jan._feb._mar._apr._maj_jun_jul_avg._sep._okt._nov._dec.'.split('_'),
+        monthsParseExact: true,
+        weekdays: 'nedjelja_ponedjeljak_utorak_srijeda_četvrtak_petak_subota'.split(
+            '_'
+        ),
+        weekdaysShort: 'ned._pon._uto._sri._čet._pet._sub.'.split('_'),
+        weekdaysMin: 'ne_po_ut_sr_če_pe_su'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY H:mm',
+            LLLL: 'dddd, D. MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[danas u] LT',
+            nextDay: '[sjutra u] LT',
+
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[u] [nedjelju] [u] LT';
+                    case 3:
+                        return '[u] [srijedu] [u] LT';
+                    case 6:
+                        return '[u] [subotu] [u] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[u] dddd [u] LT';
+                }
+            },
+            lastDay: '[juče u] LT',
+            lastWeek: function () {
+                var lastWeekDays = [
+                    '[prošle] [nedjelje] [u] LT',
+                    '[prošlog] [ponedjeljka] [u] LT',
+                    '[prošlog] [utorka] [u] LT',
+                    '[prošle] [srijede] [u] LT',
+                    '[prošlog] [četvrtka] [u] LT',
+                    '[prošlog] [petka] [u] LT',
+                    '[prošle] [subote] [u] LT',
+                ];
+                return lastWeekDays[this.day()];
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'za %s',
+            past: 'prije %s',
+            s: 'nekoliko sekundi',
+            ss: translator.translate,
+            m: translator.translate,
+            mm: translator.translate,
+            h: translator.translate,
+            hh: translator.translate,
+            d: 'dan',
+            dd: translator.translate,
+            M: 'mjesec',
+            MM: translator.translate,
+            y: 'godinu',
+            yy: translator.translate,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    return me;
+
+})));
diff --git a/backend/node_modules/moment/locale/mi.js b/backend/node_modules/moment/locale/mi.js
new file mode 100644
index 0000000..f95f9cb
--- /dev/null
+++ b/backend/node_modules/moment/locale/mi.js
@@ -0,0 +1,71 @@
+//! moment.js locale configuration
+//! locale : Maori [mi]
+//! author : John Corrigan <robbiecloset@gmail.com> : https://github.com/johnideal
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var mi = moment.defineLocale('mi', {
+        months: 'Kohi-tāte_Hui-tanguru_Poutū-te-rangi_Paenga-whāwhā_Haratua_Pipiri_Hōngoingoi_Here-turi-kōkā_Mahuru_Whiringa-ā-nuku_Whiringa-ā-rangi_Hakihea'.split(
+            '_'
+        ),
+        monthsShort:
+            'Kohi_Hui_Pou_Pae_Hara_Pipi_Hōngoi_Here_Mahu_Whi-nu_Whi-ra_Haki'.split(
+                '_'
+            ),
+        monthsRegex: /(?:['a-z\u0101\u014D\u016B]+\-?){1,3}/i,
+        monthsStrictRegex: /(?:['a-z\u0101\u014D\u016B]+\-?){1,3}/i,
+        monthsShortRegex: /(?:['a-z\u0101\u014D\u016B]+\-?){1,3}/i,
+        monthsShortStrictRegex: /(?:['a-z\u0101\u014D\u016B]+\-?){1,2}/i,
+        weekdays: 'Rātapu_Mane_Tūrei_Wenerei_Tāite_Paraire_Hātarei'.split('_'),
+        weekdaysShort: 'Ta_Ma_Tū_We_Tāi_Pa_Hā'.split('_'),
+        weekdaysMin: 'Ta_Ma_Tū_We_Tāi_Pa_Hā'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY [i] HH:mm',
+            LLLL: 'dddd, D MMMM YYYY [i] HH:mm',
+        },
+        calendar: {
+            sameDay: '[i teie mahana, i] LT',
+            nextDay: '[apopo i] LT',
+            nextWeek: 'dddd [i] LT',
+            lastDay: '[inanahi i] LT',
+            lastWeek: 'dddd [whakamutunga i] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'i roto i %s',
+            past: '%s i mua',
+            s: 'te hēkona ruarua',
+            ss: '%d hēkona',
+            m: 'he meneti',
+            mm: '%d meneti',
+            h: 'te haora',
+            hh: '%d haora',
+            d: 'he ra',
+            dd: '%d ra',
+            M: 'he marama',
+            MM: '%d marama',
+            y: 'he tau',
+            yy: '%d tau',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return mi;
+
+})));
diff --git a/backend/node_modules/moment/locale/mk.js b/backend/node_modules/moment/locale/mk.js
new file mode 100644
index 0000000..c66500d
--- /dev/null
+++ b/backend/node_modules/moment/locale/mk.js
@@ -0,0 +1,97 @@
+//! moment.js locale configuration
+//! locale : Macedonian [mk]
+//! author : Borislav Mickov : https://github.com/B0k0
+//! author : Sashko Todorov : https://github.com/bkyceh
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var mk = moment.defineLocale('mk', {
+        months: 'јануари_февруари_март_април_мај_јуни_јули_август_септември_октомври_ноември_декември'.split(
+            '_'
+        ),
+        monthsShort: 'јан_фев_мар_апр_мај_јун_јул_авг_сеп_окт_ное_дек'.split('_'),
+        weekdays: 'недела_понеделник_вторник_среда_четврток_петок_сабота'.split(
+            '_'
+        ),
+        weekdaysShort: 'нед_пон_вто_сре_чет_пет_саб'.split('_'),
+        weekdaysMin: 'нe_пo_вт_ср_че_пе_сa'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'D.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY H:mm',
+            LLLL: 'dddd, D MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[Денес во] LT',
+            nextDay: '[Утре во] LT',
+            nextWeek: '[Во] dddd [во] LT',
+            lastDay: '[Вчера во] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                    case 3:
+                    case 6:
+                        return '[Изминатата] dddd [во] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[Изминатиот] dddd [во] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'за %s',
+            past: 'пред %s',
+            s: 'неколку секунди',
+            ss: '%d секунди',
+            m: 'една минута',
+            mm: '%d минути',
+            h: 'еден час',
+            hh: '%d часа',
+            d: 'еден ден',
+            dd: '%d дена',
+            M: 'еден месец',
+            MM: '%d месеци',
+            y: 'една година',
+            yy: '%d години',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(ев|ен|ти|ви|ри|ми)/,
+        ordinal: function (number) {
+            var lastDigit = number % 10,
+                last2Digits = number % 100;
+            if (number === 0) {
+                return number + '-ев';
+            } else if (last2Digits === 0) {
+                return number + '-ен';
+            } else if (last2Digits > 10 && last2Digits < 20) {
+                return number + '-ти';
+            } else if (lastDigit === 1) {
+                return number + '-ви';
+            } else if (lastDigit === 2) {
+                return number + '-ри';
+            } else if (lastDigit === 7 || lastDigit === 8) {
+                return number + '-ми';
+            } else {
+                return number + '-ти';
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    return mk;
+
+})));
diff --git a/backend/node_modules/moment/locale/ml.js b/backend/node_modules/moment/locale/ml.js
new file mode 100644
index 0000000..6a7298c
--- /dev/null
+++ b/backend/node_modules/moment/locale/ml.js
@@ -0,0 +1,93 @@
+//! moment.js locale configuration
+//! locale : Malayalam [ml]
+//! author : Floyd Pink : https://github.com/floydpink
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var ml = moment.defineLocale('ml', {
+        months: 'ജനുവരി_ഫെബ്രുവരി_മാർച്ച്_ഏപ്രിൽ_മേയ്_ജൂൺ_ജൂലൈ_ഓഗസ്റ്റ്_സെപ്റ്റംബർ_ഒക്ടോബർ_നവംബർ_ഡിസംബർ'.split(
+            '_'
+        ),
+        monthsShort:
+            'ജനു._ഫെബ്രു._മാർ._ഏപ്രി._മേയ്_ജൂൺ_ജൂലൈ._ഓഗ._സെപ്റ്റ._ഒക്ടോ._നവം._ഡിസം.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays:
+            'ഞായറാഴ്ച_തിങ്കളാഴ്ച_ചൊവ്വാഴ്ച_ബുധനാഴ്ച_വ്യാഴാഴ്ച_വെള്ളിയാഴ്ച_ശനിയാഴ്ച'.split(
+                '_'
+            ),
+        weekdaysShort: 'ഞായർ_തിങ്കൾ_ചൊവ്വ_ബുധൻ_വ്യാഴം_വെള്ളി_ശനി'.split('_'),
+        weekdaysMin: 'ഞാ_തി_ചൊ_ബു_വ്യാ_വെ_ശ'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm -നു',
+            LTS: 'A h:mm:ss -നു',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm -നു',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm -നു',
+        },
+        calendar: {
+            sameDay: '[ഇന്ന്] LT',
+            nextDay: '[നാളെ] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[ഇന്നലെ] LT',
+            lastWeek: '[കഴിഞ്ഞ] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s കഴിഞ്ഞ്',
+            past: '%s മുൻപ്',
+            s: 'അൽപ നിമിഷങ്ങൾ',
+            ss: '%d സെക്കൻഡ്',
+            m: 'ഒരു മിനിറ്റ്',
+            mm: '%d മിനിറ്റ്',
+            h: 'ഒരു മണിക്കൂർ',
+            hh: '%d മണിക്കൂർ',
+            d: 'ഒരു ദിവസം',
+            dd: '%d ദിവസം',
+            M: 'ഒരു മാസം',
+            MM: '%d മാസം',
+            y: 'ഒരു വർഷം',
+            yy: '%d വർഷം',
+        },
+        meridiemParse: /രാത്രി|രാവിലെ|ഉച്ച കഴിഞ്ഞ്|വൈകുന്നേരം|രാത്രി/i,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (
+                (meridiem === 'രാത്രി' && hour >= 4) ||
+                meridiem === 'ഉച്ച കഴിഞ്ഞ്' ||
+                meridiem === 'വൈകുന്നേരം'
+            ) {
+                return hour + 12;
+            } else {
+                return hour;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'രാത്രി';
+            } else if (hour < 12) {
+                return 'രാവിലെ';
+            } else if (hour < 17) {
+                return 'ഉച്ച കഴിഞ്ഞ്';
+            } else if (hour < 20) {
+                return 'വൈകുന്നേരം';
+            } else {
+                return 'രാത്രി';
+            }
+        },
+    });
+
+    return ml;
+
+})));
diff --git a/backend/node_modules/moment/locale/mn.js b/backend/node_modules/moment/locale/mn.js
new file mode 100644
index 0000000..a37b792
--- /dev/null
+++ b/backend/node_modules/moment/locale/mn.js
@@ -0,0 +1,111 @@
+//! moment.js locale configuration
+//! locale : Mongolian [mn]
+//! author : Javkhlantugs Nyamdorj : https://github.com/javkhaanj7
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    function translate(number, withoutSuffix, key, isFuture) {
+        switch (key) {
+            case 's':
+                return withoutSuffix ? 'хэдхэн секунд' : 'хэдхэн секундын';
+            case 'ss':
+                return number + (withoutSuffix ? ' секунд' : ' секундын');
+            case 'm':
+            case 'mm':
+                return number + (withoutSuffix ? ' минут' : ' минутын');
+            case 'h':
+            case 'hh':
+                return number + (withoutSuffix ? ' цаг' : ' цагийн');
+            case 'd':
+            case 'dd':
+                return number + (withoutSuffix ? ' өдөр' : ' өдрийн');
+            case 'M':
+            case 'MM':
+                return number + (withoutSuffix ? ' сар' : ' сарын');
+            case 'y':
+            case 'yy':
+                return number + (withoutSuffix ? ' жил' : ' жилийн');
+            default:
+                return number;
+        }
+    }
+
+    var mn = moment.defineLocale('mn', {
+        months: 'Нэгдүгээр сар_Хоёрдугаар сар_Гуравдугаар сар_Дөрөвдүгээр сар_Тавдугаар сар_Зургадугаар сар_Долдугаар сар_Наймдугаар сар_Есдүгээр сар_Аравдугаар сар_Арван нэгдүгээр сар_Арван хоёрдугаар сар'.split(
+            '_'
+        ),
+        monthsShort:
+            '1 сар_2 сар_3 сар_4 сар_5 сар_6 сар_7 сар_8 сар_9 сар_10 сар_11 сар_12 сар'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'Ням_Даваа_Мягмар_Лхагва_Пүрэв_Баасан_Бямба'.split('_'),
+        weekdaysShort: 'Ням_Дав_Мяг_Лха_Пүр_Баа_Бям'.split('_'),
+        weekdaysMin: 'Ня_Да_Мя_Лх_Пү_Ба_Бя'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY-MM-DD',
+            LL: 'YYYY оны MMMMын D',
+            LLL: 'YYYY оны MMMMын D HH:mm',
+            LLLL: 'dddd, YYYY оны MMMMын D HH:mm',
+        },
+        meridiemParse: /ҮӨ|ҮХ/i,
+        isPM: function (input) {
+            return input === 'ҮХ';
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ҮӨ';
+            } else {
+                return 'ҮХ';
+            }
+        },
+        calendar: {
+            sameDay: '[Өнөөдөр] LT',
+            nextDay: '[Маргааш] LT',
+            nextWeek: '[Ирэх] dddd LT',
+            lastDay: '[Өчигдөр] LT',
+            lastWeek: '[Өнгөрсөн] dddd LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s дараа',
+            past: '%s өмнө',
+            s: translate,
+            ss: translate,
+            m: translate,
+            mm: translate,
+            h: translate,
+            hh: translate,
+            d: translate,
+            dd: translate,
+            M: translate,
+            MM: translate,
+            y: translate,
+            yy: translate,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2} өдөр/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'DDD':
+                    return number + ' өдөр';
+                default:
+                    return number;
+            }
+        },
+    });
+
+    return mn;
+
+})));
diff --git a/backend/node_modules/moment/locale/mr.js b/backend/node_modules/moment/locale/mr.js
new file mode 100644
index 0000000..73d5762
--- /dev/null
+++ b/backend/node_modules/moment/locale/mr.js
@@ -0,0 +1,214 @@
+//! moment.js locale configuration
+//! locale : Marathi [mr]
+//! author : Harshad Kale : https://github.com/kalehv
+//! author : Vivek Athalye : https://github.com/vnathalye
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var symbolMap = {
+            1: '१',
+            2: '२',
+            3: '३',
+            4: '४',
+            5: '५',
+            6: '६',
+            7: '७',
+            8: '८',
+            9: '९',
+            0: '०',
+        },
+        numberMap = {
+            '१': '1',
+            '२': '2',
+            '३': '3',
+            '४': '4',
+            '५': '5',
+            '६': '6',
+            '७': '7',
+            '८': '8',
+            '९': '9',
+            '०': '0',
+        };
+
+    function relativeTimeMr(number, withoutSuffix, string, isFuture) {
+        var output = '';
+        if (withoutSuffix) {
+            switch (string) {
+                case 's':
+                    output = 'काही सेकंद';
+                    break;
+                case 'ss':
+                    output = '%d सेकंद';
+                    break;
+                case 'm':
+                    output = 'एक मिनिट';
+                    break;
+                case 'mm':
+                    output = '%d मिनिटे';
+                    break;
+                case 'h':
+                    output = 'एक तास';
+                    break;
+                case 'hh':
+                    output = '%d तास';
+                    break;
+                case 'd':
+                    output = 'एक दिवस';
+                    break;
+                case 'dd':
+                    output = '%d दिवस';
+                    break;
+                case 'M':
+                    output = 'एक महिना';
+                    break;
+                case 'MM':
+                    output = '%d महिने';
+                    break;
+                case 'y':
+                    output = 'एक वर्ष';
+                    break;
+                case 'yy':
+                    output = '%d वर्षे';
+                    break;
+            }
+        } else {
+            switch (string) {
+                case 's':
+                    output = 'काही सेकंदां';
+                    break;
+                case 'ss':
+                    output = '%d सेकंदां';
+                    break;
+                case 'm':
+                    output = 'एका मिनिटा';
+                    break;
+                case 'mm':
+                    output = '%d मिनिटां';
+                    break;
+                case 'h':
+                    output = 'एका तासा';
+                    break;
+                case 'hh':
+                    output = '%d तासां';
+                    break;
+                case 'd':
+                    output = 'एका दिवसा';
+                    break;
+                case 'dd':
+                    output = '%d दिवसां';
+                    break;
+                case 'M':
+                    output = 'एका महिन्या';
+                    break;
+                case 'MM':
+                    output = '%d महिन्यां';
+                    break;
+                case 'y':
+                    output = 'एका वर्षा';
+                    break;
+                case 'yy':
+                    output = '%d वर्षां';
+                    break;
+            }
+        }
+        return output.replace(/%d/i, number);
+    }
+
+    var mr = moment.defineLocale('mr', {
+        months: 'जानेवारी_फेब्रुवारी_मार्च_एप्रिल_मे_जून_जुलै_ऑगस्ट_सप्टेंबर_ऑक्टोबर_नोव्हेंबर_डिसेंबर'.split(
+            '_'
+        ),
+        monthsShort:
+            'जाने._फेब्रु._मार्च._एप्रि._मे._जून._जुलै._ऑग._सप्टें._ऑक्टो._नोव्हें._डिसें.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'रविवार_सोमवार_मंगळवार_बुधवार_गुरूवार_शुक्रवार_शनिवार'.split('_'),
+        weekdaysShort: 'रवि_सोम_मंगळ_बुध_गुरू_शुक्र_शनि'.split('_'),
+        weekdaysMin: 'र_सो_मं_बु_गु_शु_श'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm वाजता',
+            LTS: 'A h:mm:ss वाजता',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm वाजता',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm वाजता',
+        },
+        calendar: {
+            sameDay: '[आज] LT',
+            nextDay: '[उद्या] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[काल] LT',
+            lastWeek: '[मागील] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%sमध्ये',
+            past: '%sपूर्वी',
+            s: relativeTimeMr,
+            ss: relativeTimeMr,
+            m: relativeTimeMr,
+            mm: relativeTimeMr,
+            h: relativeTimeMr,
+            hh: relativeTimeMr,
+            d: relativeTimeMr,
+            dd: relativeTimeMr,
+            M: relativeTimeMr,
+            MM: relativeTimeMr,
+            y: relativeTimeMr,
+            yy: relativeTimeMr,
+        },
+        preparse: function (string) {
+            return string.replace(/[१२३४५६७८९०]/g, function (match) {
+                return numberMap[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap[match];
+            });
+        },
+        meridiemParse: /पहाटे|सकाळी|दुपारी|सायंकाळी|रात्री/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'पहाटे' || meridiem === 'सकाळी') {
+                return hour;
+            } else if (
+                meridiem === 'दुपारी' ||
+                meridiem === 'सायंकाळी' ||
+                meridiem === 'रात्री'
+            ) {
+                return hour >= 12 ? hour : hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour >= 0 && hour < 6) {
+                return 'पहाटे';
+            } else if (hour < 12) {
+                return 'सकाळी';
+            } else if (hour < 17) {
+                return 'दुपारी';
+            } else if (hour < 20) {
+                return 'सायंकाळी';
+            } else {
+                return 'रात्री';
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    return mr;
+
+})));
diff --git a/backend/node_modules/moment/locale/ms-my.js b/backend/node_modules/moment/locale/ms-my.js
new file mode 100644
index 0000000..8d66c2b
--- /dev/null
+++ b/backend/node_modules/moment/locale/ms-my.js
@@ -0,0 +1,87 @@
+//! moment.js locale configuration
+//! locale : Malay [ms-my]
+//! note : DEPRECATED, the correct one is [ms]
+//! author : Weldan Jamili : https://github.com/weldan
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var msMy = moment.defineLocale('ms-my', {
+        months: 'Januari_Februari_Mac_April_Mei_Jun_Julai_Ogos_September_Oktober_November_Disember'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mac_Apr_Mei_Jun_Jul_Ogs_Sep_Okt_Nov_Dis'.split('_'),
+        weekdays: 'Ahad_Isnin_Selasa_Rabu_Khamis_Jumaat_Sabtu'.split('_'),
+        weekdaysShort: 'Ahd_Isn_Sel_Rab_Kha_Jum_Sab'.split('_'),
+        weekdaysMin: 'Ah_Is_Sl_Rb_Km_Jm_Sb'.split('_'),
+        longDateFormat: {
+            LT: 'HH.mm',
+            LTS: 'HH.mm.ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY [pukul] HH.mm',
+            LLLL: 'dddd, D MMMM YYYY [pukul] HH.mm',
+        },
+        meridiemParse: /pagi|tengahari|petang|malam/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'pagi') {
+                return hour;
+            } else if (meridiem === 'tengahari') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === 'petang' || meridiem === 'malam') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 11) {
+                return 'pagi';
+            } else if (hours < 15) {
+                return 'tengahari';
+            } else if (hours < 19) {
+                return 'petang';
+            } else {
+                return 'malam';
+            }
+        },
+        calendar: {
+            sameDay: '[Hari ini pukul] LT',
+            nextDay: '[Esok pukul] LT',
+            nextWeek: 'dddd [pukul] LT',
+            lastDay: '[Kelmarin pukul] LT',
+            lastWeek: 'dddd [lepas pukul] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'dalam %s',
+            past: '%s yang lepas',
+            s: 'beberapa saat',
+            ss: '%d saat',
+            m: 'seminit',
+            mm: '%d minit',
+            h: 'sejam',
+            hh: '%d jam',
+            d: 'sehari',
+            dd: '%d hari',
+            M: 'sebulan',
+            MM: '%d bulan',
+            y: 'setahun',
+            yy: '%d tahun',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    return msMy;
+
+})));
diff --git a/backend/node_modules/moment/locale/ms.js b/backend/node_modules/moment/locale/ms.js
new file mode 100644
index 0000000..37782fb
--- /dev/null
+++ b/backend/node_modules/moment/locale/ms.js
@@ -0,0 +1,86 @@
+//! moment.js locale configuration
+//! locale : Malay [ms]
+//! author : Weldan Jamili : https://github.com/weldan
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var ms = moment.defineLocale('ms', {
+        months: 'Januari_Februari_Mac_April_Mei_Jun_Julai_Ogos_September_Oktober_November_Disember'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mac_Apr_Mei_Jun_Jul_Ogs_Sep_Okt_Nov_Dis'.split('_'),
+        weekdays: 'Ahad_Isnin_Selasa_Rabu_Khamis_Jumaat_Sabtu'.split('_'),
+        weekdaysShort: 'Ahd_Isn_Sel_Rab_Kha_Jum_Sab'.split('_'),
+        weekdaysMin: 'Ah_Is_Sl_Rb_Km_Jm_Sb'.split('_'),
+        longDateFormat: {
+            LT: 'HH.mm',
+            LTS: 'HH.mm.ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY [pukul] HH.mm',
+            LLLL: 'dddd, D MMMM YYYY [pukul] HH.mm',
+        },
+        meridiemParse: /pagi|tengahari|petang|malam/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'pagi') {
+                return hour;
+            } else if (meridiem === 'tengahari') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === 'petang' || meridiem === 'malam') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 11) {
+                return 'pagi';
+            } else if (hours < 15) {
+                return 'tengahari';
+            } else if (hours < 19) {
+                return 'petang';
+            } else {
+                return 'malam';
+            }
+        },
+        calendar: {
+            sameDay: '[Hari ini pukul] LT',
+            nextDay: '[Esok pukul] LT',
+            nextWeek: 'dddd [pukul] LT',
+            lastDay: '[Kelmarin pukul] LT',
+            lastWeek: 'dddd [lepas pukul] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'dalam %s',
+            past: '%s yang lepas',
+            s: 'beberapa saat',
+            ss: '%d saat',
+            m: 'seminit',
+            mm: '%d minit',
+            h: 'sejam',
+            hh: '%d jam',
+            d: 'sehari',
+            dd: '%d hari',
+            M: 'sebulan',
+            MM: '%d bulan',
+            y: 'setahun',
+            yy: '%d tahun',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    return ms;
+
+})));
diff --git a/backend/node_modules/moment/locale/mt.js b/backend/node_modules/moment/locale/mt.js
new file mode 100644
index 0000000..94b2559
--- /dev/null
+++ b/backend/node_modules/moment/locale/mt.js
@@ -0,0 +1,67 @@
+//! moment.js locale configuration
+//! locale : Maltese (Malta) [mt]
+//! author : Alessandro Maruccia : https://github.com/alesma
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var mt = moment.defineLocale('mt', {
+        months: 'Jannar_Frar_Marzu_April_Mejju_Ġunju_Lulju_Awwissu_Settembru_Ottubru_Novembru_Diċembru'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Fra_Mar_Apr_Mej_Ġun_Lul_Aww_Set_Ott_Nov_Diċ'.split('_'),
+        weekdays:
+            'Il-Ħadd_It-Tnejn_It-Tlieta_L-Erbgħa_Il-Ħamis_Il-Ġimgħa_Is-Sibt'.split(
+                '_'
+            ),
+        weekdaysShort: 'Ħad_Tne_Tli_Erb_Ħam_Ġim_Sib'.split('_'),
+        weekdaysMin: 'Ħa_Tn_Tl_Er_Ħa_Ġi_Si'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Illum fil-]LT',
+            nextDay: '[Għada fil-]LT',
+            nextWeek: 'dddd [fil-]LT',
+            lastDay: '[Il-bieraħ fil-]LT',
+            lastWeek: 'dddd [li għadda] [fil-]LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'f’ %s',
+            past: '%s ilu',
+            s: 'ftit sekondi',
+            ss: '%d sekondi',
+            m: 'minuta',
+            mm: '%d minuti',
+            h: 'siegħa',
+            hh: '%d siegħat',
+            d: 'ġurnata',
+            dd: '%d ġranet',
+            M: 'xahar',
+            MM: '%d xhur',
+            y: 'sena',
+            yy: '%d sni',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return mt;
+
+})));
diff --git a/backend/node_modules/moment/locale/my.js b/backend/node_modules/moment/locale/my.js
new file mode 100644
index 0000000..c1ef2df
--- /dev/null
+++ b/backend/node_modules/moment/locale/my.js
@@ -0,0 +1,102 @@
+//! moment.js locale configuration
+//! locale : Burmese [my]
+//! author : Squar team, mysquar.com
+//! author : David Rossellat : https://github.com/gholadr
+//! author : Tin Aung Lin : https://github.com/thanyawzinmin
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var symbolMap = {
+            1: '၁',
+            2: '၂',
+            3: '၃',
+            4: '၄',
+            5: '၅',
+            6: '၆',
+            7: '၇',
+            8: '၈',
+            9: '၉',
+            0: '၀',
+        },
+        numberMap = {
+            '၁': '1',
+            '၂': '2',
+            '၃': '3',
+            '၄': '4',
+            '၅': '5',
+            '၆': '6',
+            '၇': '7',
+            '၈': '8',
+            '၉': '9',
+            '၀': '0',
+        };
+
+    var my = moment.defineLocale('my', {
+        months: 'ဇန်နဝါရီ_ဖေဖော်ဝါရီ_မတ်_ဧပြီ_မေ_ဇွန်_ဇူလိုင်_သြဂုတ်_စက်တင်ဘာ_အောက်တိုဘာ_နိုဝင်ဘာ_ဒီဇင်ဘာ'.split(
+            '_'
+        ),
+        monthsShort: 'ဇန်_ဖေ_မတ်_ပြီ_မေ_ဇွန်_လိုင်_သြ_စက်_အောက်_နို_ဒီ'.split('_'),
+        weekdays: 'တနင်္ဂနွေ_တနင်္လာ_အင်္ဂါ_ဗုဒ္ဓဟူး_ကြာသပတေး_သောကြာ_စနေ'.split(
+            '_'
+        ),
+        weekdaysShort: 'နွေ_လာ_ဂါ_ဟူး_ကြာ_သော_နေ'.split('_'),
+        weekdaysMin: 'နွေ_လာ_ဂါ_ဟူး_ကြာ_သော_နေ'.split('_'),
+
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[ယနေ.] LT [မှာ]',
+            nextDay: '[မနက်ဖြန်] LT [မှာ]',
+            nextWeek: 'dddd LT [မှာ]',
+            lastDay: '[မနေ.က] LT [မှာ]',
+            lastWeek: '[ပြီးခဲ့သော] dddd LT [မှာ]',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'လာမည့် %s မှာ',
+            past: 'လွန်ခဲ့သော %s က',
+            s: 'စက္ကန်.အနည်းငယ်',
+            ss: '%d စက္ကန့်',
+            m: 'တစ်မိနစ်',
+            mm: '%d မိနစ်',
+            h: 'တစ်နာရီ',
+            hh: '%d နာရီ',
+            d: 'တစ်ရက်',
+            dd: '%d ရက်',
+            M: 'တစ်လ',
+            MM: '%d လ',
+            y: 'တစ်နှစ်',
+            yy: '%d နှစ်',
+        },
+        preparse: function (string) {
+            return string.replace(/[၁၂၃၄၅၆၇၈၉၀]/g, function (match) {
+                return numberMap[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap[match];
+            });
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return my;
+
+})));
diff --git a/backend/node_modules/moment/locale/nb.js b/backend/node_modules/moment/locale/nb.js
new file mode 100644
index 0000000..1f271aa
--- /dev/null
+++ b/backend/node_modules/moment/locale/nb.js
@@ -0,0 +1,71 @@
+//! moment.js locale configuration
+//! locale : Norwegian Bokmål [nb]
+//! authors : Espen Hovlandsdal : https://github.com/rexxars
+//!           Sigurd Gartmann : https://github.com/sigurdga
+//!           Stephen Ramthun : https://github.com/stephenramthun
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var nb = moment.defineLocale('nb', {
+        months: 'januar_februar_mars_april_mai_juni_juli_august_september_oktober_november_desember'.split(
+            '_'
+        ),
+        monthsShort:
+            'jan._feb._mars_apr._mai_juni_juli_aug._sep._okt._nov._des.'.split('_'),
+        monthsParseExact: true,
+        weekdays: 'søndag_mandag_tirsdag_onsdag_torsdag_fredag_lørdag'.split('_'),
+        weekdaysShort: 'sø._ma._ti._on._to._fr._lø.'.split('_'),
+        weekdaysMin: 'sø_ma_ti_on_to_fr_lø'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY [kl.] HH:mm',
+            LLLL: 'dddd D. MMMM YYYY [kl.] HH:mm',
+        },
+        calendar: {
+            sameDay: '[i dag kl.] LT',
+            nextDay: '[i morgen kl.] LT',
+            nextWeek: 'dddd [kl.] LT',
+            lastDay: '[i går kl.] LT',
+            lastWeek: '[forrige] dddd [kl.] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'om %s',
+            past: '%s siden',
+            s: 'noen sekunder',
+            ss: '%d sekunder',
+            m: 'ett minutt',
+            mm: '%d minutter',
+            h: 'én time',
+            hh: '%d timer',
+            d: 'én dag',
+            dd: '%d dager',
+            w: 'én uke',
+            ww: '%d uker',
+            M: 'én måned',
+            MM: '%d måneder',
+            y: 'ett år',
+            yy: '%d år',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return nb;
+
+})));
diff --git a/backend/node_modules/moment/locale/ne.js b/backend/node_modules/moment/locale/ne.js
new file mode 100644
index 0000000..d455e00
--- /dev/null
+++ b/backend/node_modules/moment/locale/ne.js
@@ -0,0 +1,132 @@
+//! moment.js locale configuration
+//! locale : Nepalese [ne]
+//! author : suvash : https://github.com/suvash
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var symbolMap = {
+            1: '१',
+            2: '२',
+            3: '३',
+            4: '४',
+            5: '५',
+            6: '६',
+            7: '७',
+            8: '८',
+            9: '९',
+            0: '०',
+        },
+        numberMap = {
+            '१': '1',
+            '२': '2',
+            '३': '3',
+            '४': '4',
+            '५': '5',
+            '६': '6',
+            '७': '7',
+            '८': '8',
+            '९': '9',
+            '०': '0',
+        };
+
+    var ne = moment.defineLocale('ne', {
+        months: 'जनवरी_फेब्रुवरी_मार्च_अप्रिल_मई_जुन_जुलाई_अगष्ट_सेप्टेम्बर_अक्टोबर_नोभेम्बर_डिसेम्बर'.split(
+            '_'
+        ),
+        monthsShort:
+            'जन._फेब्रु._मार्च_अप्रि._मई_जुन_जुलाई._अग._सेप्ट._अक्टो._नोभे._डिसे.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'आइतबार_सोमबार_मङ्गलबार_बुधबार_बिहिबार_शुक्रबार_शनिबार'.split(
+            '_'
+        ),
+        weekdaysShort: 'आइत._सोम._मङ्गल._बुध._बिहि._शुक्र._शनि.'.split('_'),
+        weekdaysMin: 'आ._सो._मं._बु._बि._शु._श.'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'Aको h:mm बजे',
+            LTS: 'Aको h:mm:ss बजे',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, Aको h:mm बजे',
+            LLLL: 'dddd, D MMMM YYYY, Aको h:mm बजे',
+        },
+        preparse: function (string) {
+            return string.replace(/[१२३४५६७८९०]/g, function (match) {
+                return numberMap[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap[match];
+            });
+        },
+        meridiemParse: /राति|बिहान|दिउँसो|साँझ/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'राति') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'बिहान') {
+                return hour;
+            } else if (meridiem === 'दिउँसो') {
+                return hour >= 10 ? hour : hour + 12;
+            } else if (meridiem === 'साँझ') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 3) {
+                return 'राति';
+            } else if (hour < 12) {
+                return 'बिहान';
+            } else if (hour < 16) {
+                return 'दिउँसो';
+            } else if (hour < 20) {
+                return 'साँझ';
+            } else {
+                return 'राति';
+            }
+        },
+        calendar: {
+            sameDay: '[आज] LT',
+            nextDay: '[भोलि] LT',
+            nextWeek: '[आउँदो] dddd[,] LT',
+            lastDay: '[हिजो] LT',
+            lastWeek: '[गएको] dddd[,] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%sमा',
+            past: '%s अगाडि',
+            s: 'केही क्षण',
+            ss: '%d सेकेण्ड',
+            m: 'एक मिनेट',
+            mm: '%d मिनेट',
+            h: 'एक घण्टा',
+            hh: '%d घण्टा',
+            d: 'एक दिन',
+            dd: '%d दिन',
+            M: 'एक महिना',
+            MM: '%d महिना',
+            y: 'एक बर्ष',
+            yy: '%d बर्ष',
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    return ne;
+
+})));
diff --git a/backend/node_modules/moment/locale/nl-be.js b/backend/node_modules/moment/locale/nl-be.js
new file mode 100644
index 0000000..a35546f
--- /dev/null
+++ b/backend/node_modules/moment/locale/nl-be.js
@@ -0,0 +1,113 @@
+//! moment.js locale configuration
+//! locale : Dutch (Belgium) [nl-be]
+//! author : Joris Röling : https://github.com/jorisroling
+//! author : Jacob Middag : https://github.com/middagj
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var monthsShortWithDots =
+            'jan._feb._mrt._apr._mei_jun._jul._aug._sep._okt._nov._dec.'.split('_'),
+        monthsShortWithoutDots =
+            'jan_feb_mrt_apr_mei_jun_jul_aug_sep_okt_nov_dec'.split('_'),
+        monthsParse = [
+            /^jan/i,
+            /^feb/i,
+            /^(maart|mrt\.?)$/i,
+            /^apr/i,
+            /^mei$/i,
+            /^jun[i.]?$/i,
+            /^jul[i.]?$/i,
+            /^aug/i,
+            /^sep/i,
+            /^okt/i,
+            /^nov/i,
+            /^dec/i,
+        ],
+        monthsRegex =
+            /^(januari|februari|maart|april|mei|ju[nl]i|augustus|september|oktober|november|december|jan\.?|feb\.?|mrt\.?|apr\.?|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i;
+
+    var nlBe = moment.defineLocale('nl-be', {
+        months: 'januari_februari_maart_april_mei_juni_juli_augustus_september_oktober_november_december'.split(
+            '_'
+        ),
+        monthsShort: function (m, format) {
+            if (!m) {
+                return monthsShortWithDots;
+            } else if (/-MMM-/.test(format)) {
+                return monthsShortWithoutDots[m.month()];
+            } else {
+                return monthsShortWithDots[m.month()];
+            }
+        },
+
+        monthsRegex: monthsRegex,
+        monthsShortRegex: monthsRegex,
+        monthsStrictRegex:
+            /^(januari|februari|maart|april|mei|ju[nl]i|augustus|september|oktober|november|december)/i,
+        monthsShortStrictRegex:
+            /^(jan\.?|feb\.?|mrt\.?|apr\.?|mei|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i,
+
+        monthsParse: monthsParse,
+        longMonthsParse: monthsParse,
+        shortMonthsParse: monthsParse,
+
+        weekdays:
+            'zondag_maandag_dinsdag_woensdag_donderdag_vrijdag_zaterdag'.split('_'),
+        weekdaysShort: 'zo._ma._di._wo._do._vr._za.'.split('_'),
+        weekdaysMin: 'zo_ma_di_wo_do_vr_za'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[vandaag om] LT',
+            nextDay: '[morgen om] LT',
+            nextWeek: 'dddd [om] LT',
+            lastDay: '[gisteren om] LT',
+            lastWeek: '[afgelopen] dddd [om] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'over %s',
+            past: '%s geleden',
+            s: 'een paar seconden',
+            ss: '%d seconden',
+            m: 'één minuut',
+            mm: '%d minuten',
+            h: 'één uur',
+            hh: '%d uur',
+            d: 'één dag',
+            dd: '%d dagen',
+            M: 'één maand',
+            MM: '%d maanden',
+            y: 'één jaar',
+            yy: '%d jaar',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
+        ordinal: function (number) {
+            return (
+                number +
+                (number === 1 || number === 8 || number >= 20 ? 'ste' : 'de')
+            );
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return nlBe;
+
+})));
diff --git a/backend/node_modules/moment/locale/nl.js b/backend/node_modules/moment/locale/nl.js
new file mode 100644
index 0000000..a285c04
--- /dev/null
+++ b/backend/node_modules/moment/locale/nl.js
@@ -0,0 +1,115 @@
+//! moment.js locale configuration
+//! locale : Dutch [nl]
+//! author : Joris Röling : https://github.com/jorisroling
+//! author : Jacob Middag : https://github.com/middagj
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var monthsShortWithDots =
+            'jan._feb._mrt._apr._mei_jun._jul._aug._sep._okt._nov._dec.'.split('_'),
+        monthsShortWithoutDots =
+            'jan_feb_mrt_apr_mei_jun_jul_aug_sep_okt_nov_dec'.split('_'),
+        monthsParse = [
+            /^jan/i,
+            /^feb/i,
+            /^(maart|mrt\.?)$/i,
+            /^apr/i,
+            /^mei$/i,
+            /^jun[i.]?$/i,
+            /^jul[i.]?$/i,
+            /^aug/i,
+            /^sep/i,
+            /^okt/i,
+            /^nov/i,
+            /^dec/i,
+        ],
+        monthsRegex =
+            /^(januari|februari|maart|april|mei|ju[nl]i|augustus|september|oktober|november|december|jan\.?|feb\.?|mrt\.?|apr\.?|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i;
+
+    var nl = moment.defineLocale('nl', {
+        months: 'januari_februari_maart_april_mei_juni_juli_augustus_september_oktober_november_december'.split(
+            '_'
+        ),
+        monthsShort: function (m, format) {
+            if (!m) {
+                return monthsShortWithDots;
+            } else if (/-MMM-/.test(format)) {
+                return monthsShortWithoutDots[m.month()];
+            } else {
+                return monthsShortWithDots[m.month()];
+            }
+        },
+
+        monthsRegex: monthsRegex,
+        monthsShortRegex: monthsRegex,
+        monthsStrictRegex:
+            /^(januari|februari|maart|april|mei|ju[nl]i|augustus|september|oktober|november|december)/i,
+        monthsShortStrictRegex:
+            /^(jan\.?|feb\.?|mrt\.?|apr\.?|mei|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i,
+
+        monthsParse: monthsParse,
+        longMonthsParse: monthsParse,
+        shortMonthsParse: monthsParse,
+
+        weekdays:
+            'zondag_maandag_dinsdag_woensdag_donderdag_vrijdag_zaterdag'.split('_'),
+        weekdaysShort: 'zo._ma._di._wo._do._vr._za.'.split('_'),
+        weekdaysMin: 'zo_ma_di_wo_do_vr_za'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD-MM-YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[vandaag om] LT',
+            nextDay: '[morgen om] LT',
+            nextWeek: 'dddd [om] LT',
+            lastDay: '[gisteren om] LT',
+            lastWeek: '[afgelopen] dddd [om] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'over %s',
+            past: '%s geleden',
+            s: 'een paar seconden',
+            ss: '%d seconden',
+            m: 'één minuut',
+            mm: '%d minuten',
+            h: 'één uur',
+            hh: '%d uur',
+            d: 'één dag',
+            dd: '%d dagen',
+            w: 'één week',
+            ww: '%d weken',
+            M: 'één maand',
+            MM: '%d maanden',
+            y: 'één jaar',
+            yy: '%d jaar',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
+        ordinal: function (number) {
+            return (
+                number +
+                (number === 1 || number === 8 || number >= 20 ? 'ste' : 'de')
+            );
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return nl;
+
+})));
diff --git a/backend/node_modules/moment/locale/nn.js b/backend/node_modules/moment/locale/nn.js
new file mode 100644
index 0000000..c65268e
--- /dev/null
+++ b/backend/node_modules/moment/locale/nn.js
@@ -0,0 +1,70 @@
+//! moment.js locale configuration
+//! locale : Nynorsk [nn]
+//! authors : https://github.com/mechuwind
+//!           Stephen Ramthun : https://github.com/stephenramthun
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var nn = moment.defineLocale('nn', {
+        months: 'januar_februar_mars_april_mai_juni_juli_august_september_oktober_november_desember'.split(
+            '_'
+        ),
+        monthsShort:
+            'jan._feb._mars_apr._mai_juni_juli_aug._sep._okt._nov._des.'.split('_'),
+        monthsParseExact: true,
+        weekdays: 'sundag_måndag_tysdag_onsdag_torsdag_fredag_laurdag'.split('_'),
+        weekdaysShort: 'su._må._ty._on._to._fr._lau.'.split('_'),
+        weekdaysMin: 'su_må_ty_on_to_fr_la'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY [kl.] H:mm',
+            LLLL: 'dddd D. MMMM YYYY [kl.] HH:mm',
+        },
+        calendar: {
+            sameDay: '[I dag klokka] LT',
+            nextDay: '[I morgon klokka] LT',
+            nextWeek: 'dddd [klokka] LT',
+            lastDay: '[I går klokka] LT',
+            lastWeek: '[Føregåande] dddd [klokka] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'om %s',
+            past: '%s sidan',
+            s: 'nokre sekund',
+            ss: '%d sekund',
+            m: 'eit minutt',
+            mm: '%d minutt',
+            h: 'ein time',
+            hh: '%d timar',
+            d: 'ein dag',
+            dd: '%d dagar',
+            w: 'ei veke',
+            ww: '%d veker',
+            M: 'ein månad',
+            MM: '%d månader',
+            y: 'eit år',
+            yy: '%d år',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return nn;
+
+})));
diff --git a/backend/node_modules/moment/locale/oc-lnc.js b/backend/node_modules/moment/locale/oc-lnc.js
new file mode 100644
index 0000000..a6a8c91
--- /dev/null
+++ b/backend/node_modules/moment/locale/oc-lnc.js
@@ -0,0 +1,96 @@
+//! moment.js locale configuration
+//! locale : Occitan, lengadocian dialecte [oc-lnc]
+//! author : Quentin PAGÈS : https://github.com/Quenty31
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var ocLnc = moment.defineLocale('oc-lnc', {
+        months: {
+            standalone:
+                'genièr_febrièr_març_abril_mai_junh_julhet_agost_setembre_octòbre_novembre_decembre'.split(
+                    '_'
+                ),
+            format: "de genièr_de febrièr_de març_d'abril_de mai_de junh_de julhet_d'agost_de setembre_d'octòbre_de novembre_de decembre".split(
+                '_'
+            ),
+            isFormat: /D[oD]?(\s)+MMMM/,
+        },
+        monthsShort:
+            'gen._febr._març_abr._mai_junh_julh._ago._set._oct._nov._dec.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'dimenge_diluns_dimars_dimècres_dijòus_divendres_dissabte'.split(
+            '_'
+        ),
+        weekdaysShort: 'dg._dl._dm._dc._dj._dv._ds.'.split('_'),
+        weekdaysMin: 'dg_dl_dm_dc_dj_dv_ds'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM [de] YYYY',
+            ll: 'D MMM YYYY',
+            LLL: 'D MMMM [de] YYYY [a] H:mm',
+            lll: 'D MMM YYYY, H:mm',
+            LLLL: 'dddd D MMMM [de] YYYY [a] H:mm',
+            llll: 'ddd D MMM YYYY, H:mm',
+        },
+        calendar: {
+            sameDay: '[uèi a] LT',
+            nextDay: '[deman a] LT',
+            nextWeek: 'dddd [a] LT',
+            lastDay: '[ièr a] LT',
+            lastWeek: 'dddd [passat a] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: "d'aquí %s",
+            past: 'fa %s',
+            s: 'unas segondas',
+            ss: '%d segondas',
+            m: 'una minuta',
+            mm: '%d minutas',
+            h: 'una ora',
+            hh: '%d oras',
+            d: 'un jorn',
+            dd: '%d jorns',
+            M: 'un mes',
+            MM: '%d meses',
+            y: 'un an',
+            yy: '%d ans',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(r|n|t|è|a)/,
+        ordinal: function (number, period) {
+            var output =
+                number === 1
+                    ? 'r'
+                    : number === 2
+                      ? 'n'
+                      : number === 3
+                        ? 'r'
+                        : number === 4
+                          ? 't'
+                          : 'è';
+            if (period === 'w' || period === 'W') {
+                output = 'a';
+            }
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4,
+        },
+    });
+
+    return ocLnc;
+
+})));
diff --git a/backend/node_modules/moment/locale/pa-in.js b/backend/node_modules/moment/locale/pa-in.js
new file mode 100644
index 0000000..d57eb75
--- /dev/null
+++ b/backend/node_modules/moment/locale/pa-in.js
@@ -0,0 +1,133 @@
+//! moment.js locale configuration
+//! locale : Punjabi (India) [pa-in]
+//! author : Harpreet Singh : https://github.com/harpreetkhalsagtbit
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var symbolMap = {
+            1: '੧',
+            2: '੨',
+            3: '੩',
+            4: '੪',
+            5: '੫',
+            6: '੬',
+            7: '੭',
+            8: '੮',
+            9: '੯',
+            0: '੦',
+        },
+        numberMap = {
+            '੧': '1',
+            '੨': '2',
+            '੩': '3',
+            '੪': '4',
+            '੫': '5',
+            '੬': '6',
+            '੭': '7',
+            '੮': '8',
+            '੯': '9',
+            '੦': '0',
+        };
+
+    var paIn = moment.defineLocale('pa-in', {
+        // There are months name as per Nanakshahi Calendar but they are not used as rigidly in modern Punjabi.
+        months: 'ਜਨਵਰੀ_ਫ਼ਰਵਰੀ_ਮਾਰਚ_ਅਪ੍ਰੈਲ_ਮਈ_ਜੂਨ_ਜੁਲਾਈ_ਅਗਸਤ_ਸਤੰਬਰ_ਅਕਤੂਬਰ_ਨਵੰਬਰ_ਦਸੰਬਰ'.split(
+            '_'
+        ),
+        monthsShort:
+            'ਜਨਵਰੀ_ਫ਼ਰਵਰੀ_ਮਾਰਚ_ਅਪ੍ਰੈਲ_ਮਈ_ਜੂਨ_ਜੁਲਾਈ_ਅਗਸਤ_ਸਤੰਬਰ_ਅਕਤੂਬਰ_ਨਵੰਬਰ_ਦਸੰਬਰ'.split(
+                '_'
+            ),
+        weekdays: 'ਐਤਵਾਰ_ਸੋਮਵਾਰ_ਮੰਗਲਵਾਰ_ਬੁਧਵਾਰ_ਵੀਰਵਾਰ_ਸ਼ੁੱਕਰਵਾਰ_ਸ਼ਨੀਚਰਵਾਰ'.split(
+            '_'
+        ),
+        weekdaysShort: 'ਐਤ_ਸੋਮ_ਮੰਗਲ_ਬੁਧ_ਵੀਰ_ਸ਼ੁਕਰ_ਸ਼ਨੀ'.split('_'),
+        weekdaysMin: 'ਐਤ_ਸੋਮ_ਮੰਗਲ_ਬੁਧ_ਵੀਰ_ਸ਼ੁਕਰ_ਸ਼ਨੀ'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm ਵਜੇ',
+            LTS: 'A h:mm:ss ਵਜੇ',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm ਵਜੇ',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm ਵਜੇ',
+        },
+        calendar: {
+            sameDay: '[ਅਜ] LT',
+            nextDay: '[ਕਲ] LT',
+            nextWeek: '[ਅਗਲਾ] dddd, LT',
+            lastDay: '[ਕਲ] LT',
+            lastWeek: '[ਪਿਛਲੇ] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s ਵਿੱਚ',
+            past: '%s ਪਿਛਲੇ',
+            s: 'ਕੁਝ ਸਕਿੰਟ',
+            ss: '%d ਸਕਿੰਟ',
+            m: 'ਇਕ ਮਿੰਟ',
+            mm: '%d ਮਿੰਟ',
+            h: 'ਇੱਕ ਘੰਟਾ',
+            hh: '%d ਘੰਟੇ',
+            d: 'ਇੱਕ ਦਿਨ',
+            dd: '%d ਦਿਨ',
+            M: 'ਇੱਕ ਮਹੀਨਾ',
+            MM: '%d ਮਹੀਨੇ',
+            y: 'ਇੱਕ ਸਾਲ',
+            yy: '%d ਸਾਲ',
+        },
+        preparse: function (string) {
+            return string.replace(/[੧੨੩੪੫੬੭੮੯੦]/g, function (match) {
+                return numberMap[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap[match];
+            });
+        },
+        // Punjabi notation for meridiems are quite fuzzy in practice. While there exists
+        // a rigid notion of a 'Pahar' it is not used as rigidly in modern Punjabi.
+        meridiemParse: /ਰਾਤ|ਸਵੇਰ|ਦੁਪਹਿਰ|ਸ਼ਾਮ/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'ਰਾਤ') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'ਸਵੇਰ') {
+                return hour;
+            } else if (meridiem === 'ਦੁਪਹਿਰ') {
+                return hour >= 10 ? hour : hour + 12;
+            } else if (meridiem === 'ਸ਼ਾਮ') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'ਰਾਤ';
+            } else if (hour < 10) {
+                return 'ਸਵੇਰ';
+            } else if (hour < 17) {
+                return 'ਦੁਪਹਿਰ';
+            } else if (hour < 20) {
+                return 'ਸ਼ਾਮ';
+            } else {
+                return 'ਰਾਤ';
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    return paIn;
+
+})));
diff --git a/backend/node_modules/moment/locale/pl.js b/backend/node_modules/moment/locale/pl.js
new file mode 100644
index 0000000..0750bb3
--- /dev/null
+++ b/backend/node_modules/moment/locale/pl.js
@@ -0,0 +1,151 @@
+//! moment.js locale configuration
+//! locale : Polish [pl]
+//! author : Rafal Hirsz : https://github.com/evoL
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var monthsNominative =
+            'styczeń_luty_marzec_kwiecień_maj_czerwiec_lipiec_sierpień_wrzesień_październik_listopad_grudzień'.split(
+                '_'
+            ),
+        monthsSubjective =
+            'stycznia_lutego_marca_kwietnia_maja_czerwca_lipca_sierpnia_września_października_listopada_grudnia'.split(
+                '_'
+            ),
+        monthsParse = [
+            /^sty/i,
+            /^lut/i,
+            /^mar/i,
+            /^kwi/i,
+            /^maj/i,
+            /^cze/i,
+            /^lip/i,
+            /^sie/i,
+            /^wrz/i,
+            /^paź/i,
+            /^lis/i,
+            /^gru/i,
+        ];
+    function plural(n) {
+        return n % 10 < 5 && n % 10 > 1 && ~~(n / 10) % 10 !== 1;
+    }
+    function translate(number, withoutSuffix, key) {
+        var result = number + ' ';
+        switch (key) {
+            case 'ss':
+                return result + (plural(number) ? 'sekundy' : 'sekund');
+            case 'm':
+                return withoutSuffix ? 'minuta' : 'minutę';
+            case 'mm':
+                return result + (plural(number) ? 'minuty' : 'minut');
+            case 'h':
+                return withoutSuffix ? 'godzina' : 'godzinę';
+            case 'hh':
+                return result + (plural(number) ? 'godziny' : 'godzin');
+            case 'ww':
+                return result + (plural(number) ? 'tygodnie' : 'tygodni');
+            case 'MM':
+                return result + (plural(number) ? 'miesiące' : 'miesięcy');
+            case 'yy':
+                return result + (plural(number) ? 'lata' : 'lat');
+        }
+    }
+
+    var pl = moment.defineLocale('pl', {
+        months: function (momentToFormat, format) {
+            if (!momentToFormat) {
+                return monthsNominative;
+            } else if (/D MMMM/.test(format)) {
+                return monthsSubjective[momentToFormat.month()];
+            } else {
+                return monthsNominative[momentToFormat.month()];
+            }
+        },
+        monthsShort: 'sty_lut_mar_kwi_maj_cze_lip_sie_wrz_paź_lis_gru'.split('_'),
+        monthsParse: monthsParse,
+        longMonthsParse: monthsParse,
+        shortMonthsParse: monthsParse,
+        weekdays:
+            'niedziela_poniedziałek_wtorek_środa_czwartek_piątek_sobota'.split('_'),
+        weekdaysShort: 'ndz_pon_wt_śr_czw_pt_sob'.split('_'),
+        weekdaysMin: 'Nd_Pn_Wt_Śr_Cz_Pt_So'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Dziś o] LT',
+            nextDay: '[Jutro o] LT',
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[W niedzielę o] LT';
+
+                    case 2:
+                        return '[We wtorek o] LT';
+
+                    case 3:
+                        return '[W środę o] LT';
+
+                    case 6:
+                        return '[W sobotę o] LT';
+
+                    default:
+                        return '[W] dddd [o] LT';
+                }
+            },
+            lastDay: '[Wczoraj o] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[W zeszłą niedzielę o] LT';
+                    case 3:
+                        return '[W zeszłą środę o] LT';
+                    case 6:
+                        return '[W zeszłą sobotę o] LT';
+                    default:
+                        return '[W zeszły] dddd [o] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'za %s',
+            past: '%s temu',
+            s: 'kilka sekund',
+            ss: translate,
+            m: translate,
+            mm: translate,
+            h: translate,
+            hh: translate,
+            d: '1 dzień',
+            dd: '%d dni',
+            w: 'tydzień',
+            ww: translate,
+            M: 'miesiąc',
+            MM: translate,
+            y: 'rok',
+            yy: translate,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return pl;
+
+})));
diff --git a/backend/node_modules/moment/locale/pt-br.js b/backend/node_modules/moment/locale/pt-br.js
new file mode 100644
index 0000000..ee123bd
--- /dev/null
+++ b/backend/node_modules/moment/locale/pt-br.js
@@ -0,0 +1,69 @@
+//! moment.js locale configuration
+//! locale : Portuguese (Brazil) [pt-br]
+//! author : Caio Ribeiro Pereira : https://github.com/caio-ribeiro-pereira
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var ptBr = moment.defineLocale('pt-br', {
+        months: 'janeiro_fevereiro_março_abril_maio_junho_julho_agosto_setembro_outubro_novembro_dezembro'.split(
+            '_'
+        ),
+        monthsShort: 'jan_fev_mar_abr_mai_jun_jul_ago_set_out_nov_dez'.split('_'),
+        weekdays:
+            'domingo_segunda-feira_terça-feira_quarta-feira_quinta-feira_sexta-feira_sábado'.split(
+                '_'
+            ),
+        weekdaysShort: 'dom_seg_ter_qua_qui_sex_sáb'.split('_'),
+        weekdaysMin: 'do_2ª_3ª_4ª_5ª_6ª_sá'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D [de] MMMM [de] YYYY',
+            LLL: 'D [de] MMMM [de] YYYY [às] HH:mm',
+            LLLL: 'dddd, D [de] MMMM [de] YYYY [às] HH:mm',
+        },
+        calendar: {
+            sameDay: '[Hoje às] LT',
+            nextDay: '[Amanhã às] LT',
+            nextWeek: 'dddd [às] LT',
+            lastDay: '[Ontem às] LT',
+            lastWeek: function () {
+                return this.day() === 0 || this.day() === 6
+                    ? '[Último] dddd [às] LT' // Saturday + Sunday
+                    : '[Última] dddd [às] LT'; // Monday - Friday
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'em %s',
+            past: 'há %s',
+            s: 'poucos segundos',
+            ss: '%d segundos',
+            m: 'um minuto',
+            mm: '%d minutos',
+            h: 'uma hora',
+            hh: '%d horas',
+            d: 'um dia',
+            dd: '%d dias',
+            M: 'um mês',
+            MM: '%d meses',
+            y: 'um ano',
+            yy: '%d anos',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        invalidDate: 'Data inválida',
+    });
+
+    return ptBr;
+
+})));
diff --git a/backend/node_modules/moment/locale/pt.js b/backend/node_modules/moment/locale/pt.js
new file mode 100644
index 0000000..a113ed7
--- /dev/null
+++ b/backend/node_modules/moment/locale/pt.js
@@ -0,0 +1,74 @@
+//! moment.js locale configuration
+//! locale : Portuguese [pt]
+//! author : Jefferson : https://github.com/jalex79
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var pt = moment.defineLocale('pt', {
+        months: 'janeiro_fevereiro_março_abril_maio_junho_julho_agosto_setembro_outubro_novembro_dezembro'.split(
+            '_'
+        ),
+        monthsShort: 'jan_fev_mar_abr_mai_jun_jul_ago_set_out_nov_dez'.split('_'),
+        weekdays:
+            'Domingo_Segunda-feira_Terça-feira_Quarta-feira_Quinta-feira_Sexta-feira_Sábado'.split(
+                '_'
+            ),
+        weekdaysShort: 'Dom_Seg_Ter_Qua_Qui_Sex_Sáb'.split('_'),
+        weekdaysMin: 'Do_2ª_3ª_4ª_5ª_6ª_Sá'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D [de] MMMM [de] YYYY',
+            LLL: 'D [de] MMMM [de] YYYY HH:mm',
+            LLLL: 'dddd, D [de] MMMM [de] YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Hoje às] LT',
+            nextDay: '[Amanhã às] LT',
+            nextWeek: 'dddd [às] LT',
+            lastDay: '[Ontem às] LT',
+            lastWeek: function () {
+                return this.day() === 0 || this.day() === 6
+                    ? '[Último] dddd [às] LT' // Saturday + Sunday
+                    : '[Última] dddd [às] LT'; // Monday - Friday
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'em %s',
+            past: 'há %s',
+            s: 'segundos',
+            ss: '%d segundos',
+            m: 'um minuto',
+            mm: '%d minutos',
+            h: 'uma hora',
+            hh: '%d horas',
+            d: 'um dia',
+            dd: '%d dias',
+            w: 'uma semana',
+            ww: '%d semanas',
+            M: 'um mês',
+            MM: '%d meses',
+            y: 'um ano',
+            yy: '%d anos',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return pt;
+
+})));
diff --git a/backend/node_modules/moment/locale/ro.js b/backend/node_modules/moment/locale/ro.js
new file mode 100644
index 0000000..c2a9dd8
--- /dev/null
+++ b/backend/node_modules/moment/locale/ro.js
@@ -0,0 +1,87 @@
+//! moment.js locale configuration
+//! locale : Romanian [ro]
+//! author : Vlad Gurdiga : https://github.com/gurdiga
+//! author : Valentin Agachi : https://github.com/avaly
+//! author : Emanuel Cepoi : https://github.com/cepem
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    function relativeTimeWithPlural(number, withoutSuffix, key) {
+        var format = {
+                ss: 'secunde',
+                mm: 'minute',
+                hh: 'ore',
+                dd: 'zile',
+                ww: 'săptămâni',
+                MM: 'luni',
+                yy: 'ani',
+            },
+            separator = ' ';
+        if (number % 100 >= 20 || (number >= 100 && number % 100 === 0)) {
+            separator = ' de ';
+        }
+        return number + separator + format[key];
+    }
+
+    var ro = moment.defineLocale('ro', {
+        months: 'ianuarie_februarie_martie_aprilie_mai_iunie_iulie_august_septembrie_octombrie_noiembrie_decembrie'.split(
+            '_'
+        ),
+        monthsShort:
+            'ian._feb._mart._apr._mai_iun._iul._aug._sept._oct._nov._dec.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'duminică_luni_marți_miercuri_joi_vineri_sâmbătă'.split('_'),
+        weekdaysShort: 'Dum_Lun_Mar_Mie_Joi_Vin_Sâm'.split('_'),
+        weekdaysMin: 'Du_Lu_Ma_Mi_Jo_Vi_Sâ'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY H:mm',
+            LLLL: 'dddd, D MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[azi la] LT',
+            nextDay: '[mâine la] LT',
+            nextWeek: 'dddd [la] LT',
+            lastDay: '[ieri la] LT',
+            lastWeek: '[fosta] dddd [la] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'peste %s',
+            past: '%s în urmă',
+            s: 'câteva secunde',
+            ss: relativeTimeWithPlural,
+            m: 'un minut',
+            mm: relativeTimeWithPlural,
+            h: 'o oră',
+            hh: relativeTimeWithPlural,
+            d: 'o zi',
+            dd: relativeTimeWithPlural,
+            w: 'o săptămână',
+            ww: relativeTimeWithPlural,
+            M: 'o lună',
+            MM: relativeTimeWithPlural,
+            y: 'un an',
+            yy: relativeTimeWithPlural,
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    return ro;
+
+})));
diff --git a/backend/node_modules/moment/locale/ru.js b/backend/node_modules/moment/locale/ru.js
new file mode 100644
index 0000000..d313eae
--- /dev/null
+++ b/backend/node_modules/moment/locale/ru.js
@@ -0,0 +1,224 @@
+//! moment.js locale configuration
+//! locale : Russian [ru]
+//! author : Viktorminator : https://github.com/Viktorminator
+//! author : Menelion Elensúle : https://github.com/Oire
+//! author : Коренберг Марк : https://github.com/socketpair
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    function plural(word, num) {
+        var forms = word.split('_');
+        return num % 10 === 1 && num % 100 !== 11
+            ? forms[0]
+            : num % 10 >= 2 && num % 10 <= 4 && (num % 100 < 10 || num % 100 >= 20)
+              ? forms[1]
+              : forms[2];
+    }
+    function relativeTimeWithPlural(number, withoutSuffix, key) {
+        var format = {
+            ss: withoutSuffix ? 'секунда_секунды_секунд' : 'секунду_секунды_секунд',
+            mm: withoutSuffix ? 'минута_минуты_минут' : 'минуту_минуты_минут',
+            hh: 'час_часа_часов',
+            dd: 'день_дня_дней',
+            ww: 'неделя_недели_недель',
+            MM: 'месяц_месяца_месяцев',
+            yy: 'год_года_лет',
+        };
+        if (key === 'm') {
+            return withoutSuffix ? 'минута' : 'минуту';
+        } else {
+            return number + ' ' + plural(format[key], +number);
+        }
+    }
+    var monthsParse = [
+        /^янв/i,
+        /^фев/i,
+        /^мар/i,
+        /^апр/i,
+        /^ма[йя]/i,
+        /^июн/i,
+        /^июл/i,
+        /^авг/i,
+        /^сен/i,
+        /^окт/i,
+        /^ноя/i,
+        /^дек/i,
+    ];
+
+    // http://new.gramota.ru/spravka/rules/139-prop : § 103
+    // Сокращения месяцев: http://new.gramota.ru/spravka/buro/search-answer?s=242637
+    // CLDR data:          http://www.unicode.org/cldr/charts/28/summary/ru.html#1753
+    var ru = moment.defineLocale('ru', {
+        months: {
+            format: 'января_февраля_марта_апреля_мая_июня_июля_августа_сентября_октября_ноября_декабря'.split(
+                '_'
+            ),
+            standalone:
+                'январь_февраль_март_апрель_май_июнь_июль_август_сентябрь_октябрь_ноябрь_декабрь'.split(
+                    '_'
+                ),
+        },
+        monthsShort: {
+            // по CLDR именно "июл." и "июн.", но какой смысл менять букву на точку?
+            format: 'янв._февр._мар._апр._мая_июня_июля_авг._сент._окт._нояб._дек.'.split(
+                '_'
+            ),
+            standalone:
+                'янв._февр._март_апр._май_июнь_июль_авг._сент._окт._нояб._дек.'.split(
+                    '_'
+                ),
+        },
+        weekdays: {
+            standalone:
+                'воскресенье_понедельник_вторник_среда_четверг_пятница_суббота'.split(
+                    '_'
+                ),
+            format: 'воскресенье_понедельник_вторник_среду_четверг_пятницу_субботу'.split(
+                '_'
+            ),
+            isFormat: /\[ ?[Вв] ?(?:прошлую|следующую|эту)? ?] ?dddd/,
+        },
+        weekdaysShort: 'вс_пн_вт_ср_чт_пт_сб'.split('_'),
+        weekdaysMin: 'вс_пн_вт_ср_чт_пт_сб'.split('_'),
+        monthsParse: monthsParse,
+        longMonthsParse: monthsParse,
+        shortMonthsParse: monthsParse,
+
+        // полные названия с падежами, по три буквы, для некоторых, по 4 буквы, сокращения с точкой и без точки
+        monthsRegex:
+            /^(январ[ья]|янв\.?|феврал[ья]|февр?\.?|марта?|мар\.?|апрел[ья]|апр\.?|ма[йя]|июн[ья]|июн\.?|июл[ья]|июл\.?|августа?|авг\.?|сентябр[ья]|сент?\.?|октябр[ья]|окт\.?|ноябр[ья]|нояб?\.?|декабр[ья]|дек\.?)/i,
+
+        // копия предыдущего
+        monthsShortRegex:
+            /^(январ[ья]|янв\.?|феврал[ья]|февр?\.?|марта?|мар\.?|апрел[ья]|апр\.?|ма[йя]|июн[ья]|июн\.?|июл[ья]|июл\.?|августа?|авг\.?|сентябр[ья]|сент?\.?|октябр[ья]|окт\.?|ноябр[ья]|нояб?\.?|декабр[ья]|дек\.?)/i,
+
+        // полные названия с падежами
+        monthsStrictRegex:
+            /^(январ[яь]|феврал[яь]|марта?|апрел[яь]|ма[яй]|июн[яь]|июл[яь]|августа?|сентябр[яь]|октябр[яь]|ноябр[яь]|декабр[яь])/i,
+
+        // Выражение, которое соответствует только сокращённым формам
+        monthsShortStrictRegex:
+            /^(янв\.|февр?\.|мар[т.]|апр\.|ма[яй]|июн[ья.]|июл[ья.]|авг\.|сент?\.|окт\.|нояб?\.|дек\.)/i,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY г.',
+            LLL: 'D MMMM YYYY г., H:mm',
+            LLLL: 'dddd, D MMMM YYYY г., H:mm',
+        },
+        calendar: {
+            sameDay: '[Сегодня, в] LT',
+            nextDay: '[Завтра, в] LT',
+            lastDay: '[Вчера, в] LT',
+            nextWeek: function (now) {
+                if (now.week() !== this.week()) {
+                    switch (this.day()) {
+                        case 0:
+                            return '[В следующее] dddd, [в] LT';
+                        case 1:
+                        case 2:
+                        case 4:
+                            return '[В следующий] dddd, [в] LT';
+                        case 3:
+                        case 5:
+                        case 6:
+                            return '[В следующую] dddd, [в] LT';
+                    }
+                } else {
+                    if (this.day() === 2) {
+                        return '[Во] dddd, [в] LT';
+                    } else {
+                        return '[В] dddd, [в] LT';
+                    }
+                }
+            },
+            lastWeek: function (now) {
+                if (now.week() !== this.week()) {
+                    switch (this.day()) {
+                        case 0:
+                            return '[В прошлое] dddd, [в] LT';
+                        case 1:
+                        case 2:
+                        case 4:
+                            return '[В прошлый] dddd, [в] LT';
+                        case 3:
+                        case 5:
+                        case 6:
+                            return '[В прошлую] dddd, [в] LT';
+                    }
+                } else {
+                    if (this.day() === 2) {
+                        return '[Во] dddd, [в] LT';
+                    } else {
+                        return '[В] dddd, [в] LT';
+                    }
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'через %s',
+            past: '%s назад',
+            s: 'несколько секунд',
+            ss: relativeTimeWithPlural,
+            m: relativeTimeWithPlural,
+            mm: relativeTimeWithPlural,
+            h: 'час',
+            hh: relativeTimeWithPlural,
+            d: 'день',
+            dd: relativeTimeWithPlural,
+            w: 'неделя',
+            ww: relativeTimeWithPlural,
+            M: 'месяц',
+            MM: relativeTimeWithPlural,
+            y: 'год',
+            yy: relativeTimeWithPlural,
+        },
+        meridiemParse: /ночи|утра|дня|вечера/i,
+        isPM: function (input) {
+            return /^(дня|вечера)$/.test(input);
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'ночи';
+            } else if (hour < 12) {
+                return 'утра';
+            } else if (hour < 17) {
+                return 'дня';
+            } else {
+                return 'вечера';
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(й|го|я)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'M':
+                case 'd':
+                case 'DDD':
+                    return number + '-й';
+                case 'D':
+                    return number + '-го';
+                case 'w':
+                case 'W':
+                    return number + '-я';
+                default:
+                    return number;
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return ru;
+
+})));
diff --git a/backend/node_modules/moment/locale/sd.js b/backend/node_modules/moment/locale/sd.js
new file mode 100644
index 0000000..56ff8c7
--- /dev/null
+++ b/backend/node_modules/moment/locale/sd.js
@@ -0,0 +1,92 @@
+//! moment.js locale configuration
+//! locale : Sindhi [sd]
+//! author : Narain Sagar : https://github.com/narainsagar
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var months = [
+            'جنوري',
+            'فيبروري',
+            'مارچ',
+            'اپريل',
+            'مئي',
+            'جون',
+            'جولاءِ',
+            'آگسٽ',
+            'سيپٽمبر',
+            'آڪٽوبر',
+            'نومبر',
+            'ڊسمبر',
+        ],
+        days = ['آچر', 'سومر', 'اڱارو', 'اربع', 'خميس', 'جمع', 'ڇنڇر'];
+
+    var sd = moment.defineLocale('sd', {
+        months: months,
+        monthsShort: months,
+        weekdays: days,
+        weekdaysShort: days,
+        weekdaysMin: days,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd، D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /صبح|شام/,
+        isPM: function (input) {
+            return 'شام' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'صبح';
+            }
+            return 'شام';
+        },
+        calendar: {
+            sameDay: '[اڄ] LT',
+            nextDay: '[سڀاڻي] LT',
+            nextWeek: 'dddd [اڳين هفتي تي] LT',
+            lastDay: '[ڪالهه] LT',
+            lastWeek: '[گزريل هفتي] dddd [تي] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s پوء',
+            past: '%s اڳ',
+            s: 'چند سيڪنڊ',
+            ss: '%d سيڪنڊ',
+            m: 'هڪ منٽ',
+            mm: '%d منٽ',
+            h: 'هڪ ڪلاڪ',
+            hh: '%d ڪلاڪ',
+            d: 'هڪ ڏينهن',
+            dd: '%d ڏينهن',
+            M: 'هڪ مهينو',
+            MM: '%d مهينا',
+            y: 'هڪ سال',
+            yy: '%d سال',
+        },
+        preparse: function (string) {
+            return string.replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string.replace(/,/g, '،');
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return sd;
+
+})));
diff --git a/backend/node_modules/moment/locale/se.js b/backend/node_modules/moment/locale/se.js
new file mode 100644
index 0000000..289929a
--- /dev/null
+++ b/backend/node_modules/moment/locale/se.js
@@ -0,0 +1,68 @@
+//! moment.js locale configuration
+//! locale : Northern Sami [se]
+//! authors : Bård Rolstad Henriksen : https://github.com/karamell
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var se = moment.defineLocale('se', {
+        months: 'ođđajagemánnu_guovvamánnu_njukčamánnu_cuoŋománnu_miessemánnu_geassemánnu_suoidnemánnu_borgemánnu_čakčamánnu_golggotmánnu_skábmamánnu_juovlamánnu'.split(
+            '_'
+        ),
+        monthsShort:
+            'ođđj_guov_njuk_cuo_mies_geas_suoi_borg_čakč_golg_skáb_juov'.split('_'),
+        weekdays:
+            'sotnabeaivi_vuossárga_maŋŋebárga_gaskavahkku_duorastat_bearjadat_lávvardat'.split(
+                '_'
+            ),
+        weekdaysShort: 'sotn_vuos_maŋ_gask_duor_bear_láv'.split('_'),
+        weekdaysMin: 's_v_m_g_d_b_L'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'MMMM D. [b.] YYYY',
+            LLL: 'MMMM D. [b.] YYYY [ti.] HH:mm',
+            LLLL: 'dddd, MMMM D. [b.] YYYY [ti.] HH:mm',
+        },
+        calendar: {
+            sameDay: '[otne ti] LT',
+            nextDay: '[ihttin ti] LT',
+            nextWeek: 'dddd [ti] LT',
+            lastDay: '[ikte ti] LT',
+            lastWeek: '[ovddit] dddd [ti] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s geažes',
+            past: 'maŋit %s',
+            s: 'moadde sekunddat',
+            ss: '%d sekunddat',
+            m: 'okta minuhta',
+            mm: '%d minuhtat',
+            h: 'okta diimmu',
+            hh: '%d diimmut',
+            d: 'okta beaivi',
+            dd: '%d beaivvit',
+            M: 'okta mánnu',
+            MM: '%d mánut',
+            y: 'okta jahki',
+            yy: '%d jagit',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return se;
+
+})));
diff --git a/backend/node_modules/moment/locale/si.js b/backend/node_modules/moment/locale/si.js
new file mode 100644
index 0000000..4421d04
--- /dev/null
+++ b/backend/node_modules/moment/locale/si.js
@@ -0,0 +1,80 @@
+//! moment.js locale configuration
+//! locale : Sinhalese [si]
+//! author : Sampath Sitinamaluwa : https://github.com/sampathsris
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    /*jshint -W100*/
+    var si = moment.defineLocale('si', {
+        months: 'ජනවාරි_පෙබරවාරි_මාර්තු_අප්‍රේල්_මැයි_ජූනි_ජූලි_අගෝස්තු_සැප්තැම්බර්_ඔක්තෝබර්_නොවැම්බර්_දෙසැම්බර්'.split(
+            '_'
+        ),
+        monthsShort: 'ජන_පෙබ_මාර්_අප්_මැයි_ජූනි_ජූලි_අගෝ_සැප්_ඔක්_නොවැ_දෙසැ'.split(
+            '_'
+        ),
+        weekdays:
+            'ඉරිදා_සඳුදා_අඟහරුවාදා_බදාදා_බ්‍රහස්පතින්දා_සිකුරාදා_සෙනසුරාදා'.split(
+                '_'
+            ),
+        weekdaysShort: 'ඉරි_සඳු_අඟ_බදා_බ්‍රහ_සිකු_සෙන'.split('_'),
+        weekdaysMin: 'ඉ_ස_අ_බ_බ්‍ර_සි_සෙ'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'a h:mm',
+            LTS: 'a h:mm:ss',
+            L: 'YYYY/MM/DD',
+            LL: 'YYYY MMMM D',
+            LLL: 'YYYY MMMM D, a h:mm',
+            LLLL: 'YYYY MMMM D [වැනි] dddd, a h:mm:ss',
+        },
+        calendar: {
+            sameDay: '[අද] LT[ට]',
+            nextDay: '[හෙට] LT[ට]',
+            nextWeek: 'dddd LT[ට]',
+            lastDay: '[ඊයේ] LT[ට]',
+            lastWeek: '[පසුගිය] dddd LT[ට]',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%sකින්',
+            past: '%sකට පෙර',
+            s: 'තත්පර කිහිපය',
+            ss: 'තත්පර %d',
+            m: 'මිනිත්තුව',
+            mm: 'මිනිත්තු %d',
+            h: 'පැය',
+            hh: 'පැය %d',
+            d: 'දිනය',
+            dd: 'දින %d',
+            M: 'මාසය',
+            MM: 'මාස %d',
+            y: 'වසර',
+            yy: 'වසර %d',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2} වැනි/,
+        ordinal: function (number) {
+            return number + ' වැනි';
+        },
+        meridiemParse: /පෙර වරු|පස් වරු|පෙ.ව|ප.ව./,
+        isPM: function (input) {
+            return input === 'ප.ව.' || input === 'පස් වරු';
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours > 11) {
+                return isLower ? 'ප.ව.' : 'පස් වරු';
+            } else {
+                return isLower ? 'පෙ.ව.' : 'පෙර වරු';
+            }
+        },
+    });
+
+    return si;
+
+})));
diff --git a/backend/node_modules/moment/locale/sk.js b/backend/node_modules/moment/locale/sk.js
new file mode 100644
index 0000000..99edae7
--- /dev/null
+++ b/backend/node_modules/moment/locale/sk.js
@@ -0,0 +1,156 @@
+//! moment.js locale configuration
+//! locale : Slovak [sk]
+//! author : Martin Minka : https://github.com/k2s
+//! based on work of petrbela : https://github.com/petrbela
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var months =
+            'január_február_marec_apríl_máj_jún_júl_august_september_október_november_december'.split(
+                '_'
+            ),
+        monthsShort = 'jan_feb_mar_apr_máj_jún_júl_aug_sep_okt_nov_dec'.split('_');
+    function plural(n) {
+        return n > 1 && n < 5;
+    }
+    function translate(number, withoutSuffix, key, isFuture) {
+        var result = number + ' ';
+        switch (key) {
+            case 's': // a few seconds / in a few seconds / a few seconds ago
+                return withoutSuffix || isFuture ? 'pár sekúnd' : 'pár sekundami';
+            case 'ss': // 9 seconds / in 9 seconds / 9 seconds ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural(number) ? 'sekundy' : 'sekúnd');
+                } else {
+                    return result + 'sekundami';
+                }
+            case 'm': // a minute / in a minute / a minute ago
+                return withoutSuffix ? 'minúta' : isFuture ? 'minútu' : 'minútou';
+            case 'mm': // 9 minutes / in 9 minutes / 9 minutes ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural(number) ? 'minúty' : 'minút');
+                } else {
+                    return result + 'minútami';
+                }
+            case 'h': // an hour / in an hour / an hour ago
+                return withoutSuffix ? 'hodina' : isFuture ? 'hodinu' : 'hodinou';
+            case 'hh': // 9 hours / in 9 hours / 9 hours ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural(number) ? 'hodiny' : 'hodín');
+                } else {
+                    return result + 'hodinami';
+                }
+            case 'd': // a day / in a day / a day ago
+                return withoutSuffix || isFuture ? 'deň' : 'dňom';
+            case 'dd': // 9 days / in 9 days / 9 days ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural(number) ? 'dni' : 'dní');
+                } else {
+                    return result + 'dňami';
+                }
+            case 'M': // a month / in a month / a month ago
+                return withoutSuffix || isFuture ? 'mesiac' : 'mesiacom';
+            case 'MM': // 9 months / in 9 months / 9 months ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural(number) ? 'mesiace' : 'mesiacov');
+                } else {
+                    return result + 'mesiacmi';
+                }
+            case 'y': // a year / in a year / a year ago
+                return withoutSuffix || isFuture ? 'rok' : 'rokom';
+            case 'yy': // 9 years / in 9 years / 9 years ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural(number) ? 'roky' : 'rokov');
+                } else {
+                    return result + 'rokmi';
+                }
+        }
+    }
+
+    var sk = moment.defineLocale('sk', {
+        months: months,
+        monthsShort: monthsShort,
+        weekdays: 'nedeľa_pondelok_utorok_streda_štvrtok_piatok_sobota'.split('_'),
+        weekdaysShort: 'ne_po_ut_st_št_pi_so'.split('_'),
+        weekdaysMin: 'ne_po_ut_st_št_pi_so'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY H:mm',
+            LLLL: 'dddd D. MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[dnes o] LT',
+            nextDay: '[zajtra o] LT',
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[v nedeľu o] LT';
+                    case 1:
+                    case 2:
+                        return '[v] dddd [o] LT';
+                    case 3:
+                        return '[v stredu o] LT';
+                    case 4:
+                        return '[vo štvrtok o] LT';
+                    case 5:
+                        return '[v piatok o] LT';
+                    case 6:
+                        return '[v sobotu o] LT';
+                }
+            },
+            lastDay: '[včera o] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[minulú nedeľu o] LT';
+                    case 1:
+                    case 2:
+                        return '[minulý] dddd [o] LT';
+                    case 3:
+                        return '[minulú stredu o] LT';
+                    case 4:
+                    case 5:
+                        return '[minulý] dddd [o] LT';
+                    case 6:
+                        return '[minulú sobotu o] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'za %s',
+            past: 'pred %s',
+            s: translate,
+            ss: translate,
+            m: translate,
+            mm: translate,
+            h: translate,
+            hh: translate,
+            d: translate,
+            dd: translate,
+            M: translate,
+            MM: translate,
+            y: translate,
+            yy: translate,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return sk;
+
+})));
diff --git a/backend/node_modules/moment/locale/sl.js b/backend/node_modules/moment/locale/sl.js
new file mode 100644
index 0000000..38f1210
--- /dev/null
+++ b/backend/node_modules/moment/locale/sl.js
@@ -0,0 +1,182 @@
+//! moment.js locale configuration
+//! locale : Slovenian [sl]
+//! author : Robert Sedovšek : https://github.com/sedovsek
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    function processRelativeTime(number, withoutSuffix, key, isFuture) {
+        var result = number + ' ';
+        switch (key) {
+            case 's':
+                return withoutSuffix || isFuture
+                    ? 'nekaj sekund'
+                    : 'nekaj sekundami';
+            case 'ss':
+                if (number === 1) {
+                    result += withoutSuffix ? 'sekundo' : 'sekundi';
+                } else if (number === 2) {
+                    result += withoutSuffix || isFuture ? 'sekundi' : 'sekundah';
+                } else if (number < 5) {
+                    result += withoutSuffix || isFuture ? 'sekunde' : 'sekundah';
+                } else {
+                    result += 'sekund';
+                }
+                return result;
+            case 'm':
+                return withoutSuffix ? 'ena minuta' : 'eno minuto';
+            case 'mm':
+                if (number === 1) {
+                    result += withoutSuffix ? 'minuta' : 'minuto';
+                } else if (number === 2) {
+                    result += withoutSuffix || isFuture ? 'minuti' : 'minutama';
+                } else if (number < 5) {
+                    result += withoutSuffix || isFuture ? 'minute' : 'minutami';
+                } else {
+                    result += withoutSuffix || isFuture ? 'minut' : 'minutami';
+                }
+                return result;
+            case 'h':
+                return withoutSuffix ? 'ena ura' : 'eno uro';
+            case 'hh':
+                if (number === 1) {
+                    result += withoutSuffix ? 'ura' : 'uro';
+                } else if (number === 2) {
+                    result += withoutSuffix || isFuture ? 'uri' : 'urama';
+                } else if (number < 5) {
+                    result += withoutSuffix || isFuture ? 'ure' : 'urami';
+                } else {
+                    result += withoutSuffix || isFuture ? 'ur' : 'urami';
+                }
+                return result;
+            case 'd':
+                return withoutSuffix || isFuture ? 'en dan' : 'enim dnem';
+            case 'dd':
+                if (number === 1) {
+                    result += withoutSuffix || isFuture ? 'dan' : 'dnem';
+                } else if (number === 2) {
+                    result += withoutSuffix || isFuture ? 'dni' : 'dnevoma';
+                } else {
+                    result += withoutSuffix || isFuture ? 'dni' : 'dnevi';
+                }
+                return result;
+            case 'M':
+                return withoutSuffix || isFuture ? 'en mesec' : 'enim mesecem';
+            case 'MM':
+                if (number === 1) {
+                    result += withoutSuffix || isFuture ? 'mesec' : 'mesecem';
+                } else if (number === 2) {
+                    result += withoutSuffix || isFuture ? 'meseca' : 'mesecema';
+                } else if (number < 5) {
+                    result += withoutSuffix || isFuture ? 'mesece' : 'meseci';
+                } else {
+                    result += withoutSuffix || isFuture ? 'mesecev' : 'meseci';
+                }
+                return result;
+            case 'y':
+                return withoutSuffix || isFuture ? 'eno leto' : 'enim letom';
+            case 'yy':
+                if (number === 1) {
+                    result += withoutSuffix || isFuture ? 'leto' : 'letom';
+                } else if (number === 2) {
+                    result += withoutSuffix || isFuture ? 'leti' : 'letoma';
+                } else if (number < 5) {
+                    result += withoutSuffix || isFuture ? 'leta' : 'leti';
+                } else {
+                    result += withoutSuffix || isFuture ? 'let' : 'leti';
+                }
+                return result;
+        }
+    }
+
+    var sl = moment.defineLocale('sl', {
+        months: 'januar_februar_marec_april_maj_junij_julij_avgust_september_oktober_november_december'.split(
+            '_'
+        ),
+        monthsShort:
+            'jan._feb._mar._apr._maj._jun._jul._avg._sep._okt._nov._dec.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'nedelja_ponedeljek_torek_sreda_četrtek_petek_sobota'.split('_'),
+        weekdaysShort: 'ned._pon._tor._sre._čet._pet._sob.'.split('_'),
+        weekdaysMin: 'ne_po_to_sr_če_pe_so'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD. MM. YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY H:mm',
+            LLLL: 'dddd, D. MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[danes ob] LT',
+            nextDay: '[jutri ob] LT',
+
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[v] [nedeljo] [ob] LT';
+                    case 3:
+                        return '[v] [sredo] [ob] LT';
+                    case 6:
+                        return '[v] [soboto] [ob] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[v] dddd [ob] LT';
+                }
+            },
+            lastDay: '[včeraj ob] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[prejšnjo] [nedeljo] [ob] LT';
+                    case 3:
+                        return '[prejšnjo] [sredo] [ob] LT';
+                    case 6:
+                        return '[prejšnjo] [soboto] [ob] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[prejšnji] dddd [ob] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'čez %s',
+            past: 'pred %s',
+            s: processRelativeTime,
+            ss: processRelativeTime,
+            m: processRelativeTime,
+            mm: processRelativeTime,
+            h: processRelativeTime,
+            hh: processRelativeTime,
+            d: processRelativeTime,
+            dd: processRelativeTime,
+            M: processRelativeTime,
+            MM: processRelativeTime,
+            y: processRelativeTime,
+            yy: processRelativeTime,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    return sl;
+
+})));
diff --git a/backend/node_modules/moment/locale/sq.js b/backend/node_modules/moment/locale/sq.js
new file mode 100644
index 0000000..154e3d6
--- /dev/null
+++ b/backend/node_modules/moment/locale/sq.js
@@ -0,0 +1,76 @@
+//! moment.js locale configuration
+//! locale : Albanian [sq]
+//! author : Flakërim Ismani : https://github.com/flakerimi
+//! author : Menelion Elensúle : https://github.com/Oire
+//! author : Oerd Cukalla : https://github.com/oerd
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var sq = moment.defineLocale('sq', {
+        months: 'Janar_Shkurt_Mars_Prill_Maj_Qershor_Korrik_Gusht_Shtator_Tetor_Nëntor_Dhjetor'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Shk_Mar_Pri_Maj_Qer_Kor_Gus_Sht_Tet_Nën_Dhj'.split('_'),
+        weekdays: 'E Diel_E Hënë_E Martë_E Mërkurë_E Enjte_E Premte_E Shtunë'.split(
+            '_'
+        ),
+        weekdaysShort: 'Die_Hën_Mar_Mër_Enj_Pre_Sht'.split('_'),
+        weekdaysMin: 'D_H_Ma_Më_E_P_Sh'.split('_'),
+        weekdaysParseExact: true,
+        meridiemParse: /PD|MD/,
+        isPM: function (input) {
+            return input.charAt(0) === 'M';
+        },
+        meridiem: function (hours, minutes, isLower) {
+            return hours < 12 ? 'PD' : 'MD';
+        },
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Sot në] LT',
+            nextDay: '[Nesër në] LT',
+            nextWeek: 'dddd [në] LT',
+            lastDay: '[Dje në] LT',
+            lastWeek: 'dddd [e kaluar në] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'në %s',
+            past: '%s më parë',
+            s: 'disa sekonda',
+            ss: '%d sekonda',
+            m: 'një minutë',
+            mm: '%d minuta',
+            h: 'një orë',
+            hh: '%d orë',
+            d: 'një ditë',
+            dd: '%d ditë',
+            M: 'një muaj',
+            MM: '%d muaj',
+            y: 'një vit',
+            yy: '%d vite',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return sq;
+
+})));
diff --git a/backend/node_modules/moment/locale/sr-cyrl.js b/backend/node_modules/moment/locale/sr-cyrl.js
new file mode 100644
index 0000000..9da10fa
--- /dev/null
+++ b/backend/node_modules/moment/locale/sr-cyrl.js
@@ -0,0 +1,138 @@
+//! moment.js locale configuration
+//! locale : Serbian Cyrillic [sr-cyrl]
+//! author : Milan Janačković<milanjanackovic@gmail.com> : https://github.com/milan-j
+//! author : Stefan Crnjaković <stefan@hotmail.rs> : https://github.com/crnjakovic
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var translator = {
+        words: {
+            //Different grammatical cases
+            ss: ['секунда', 'секунде', 'секунди'],
+            m: ['један минут', 'једног минута'],
+            mm: ['минут', 'минута', 'минута'],
+            h: ['један сат', 'једног сата'],
+            hh: ['сат', 'сата', 'сати'],
+            d: ['један дан', 'једног дана'],
+            dd: ['дан', 'дана', 'дана'],
+            M: ['један месец', 'једног месеца'],
+            MM: ['месец', 'месеца', 'месеци'],
+            y: ['једну годину', 'једне године'],
+            yy: ['годину', 'године', 'година'],
+        },
+        correctGrammaticalCase: function (number, wordKey) {
+            if (
+                number % 10 >= 1 &&
+                number % 10 <= 4 &&
+                (number % 100 < 10 || number % 100 >= 20)
+            ) {
+                return number % 10 === 1 ? wordKey[0] : wordKey[1];
+            }
+            return wordKey[2];
+        },
+        translate: function (number, withoutSuffix, key, isFuture) {
+            var wordKey = translator.words[key],
+                word;
+
+            if (key.length === 1) {
+                // Nominativ
+                if (key === 'y' && withoutSuffix) return 'једна година';
+                return isFuture || withoutSuffix ? wordKey[0] : wordKey[1];
+            }
+
+            word = translator.correctGrammaticalCase(number, wordKey);
+            // Nominativ
+            if (key === 'yy' && withoutSuffix && word === 'годину') {
+                return number + ' година';
+            }
+
+            return number + ' ' + word;
+        },
+    };
+
+    var srCyrl = moment.defineLocale('sr-cyrl', {
+        months: 'јануар_фебруар_март_април_мај_јун_јул_август_септембар_октобар_новембар_децембар'.split(
+            '_'
+        ),
+        monthsShort:
+            'јан._феб._мар._апр._мај_јун_јул_авг._сеп._окт._нов._дец.'.split('_'),
+        monthsParseExact: true,
+        weekdays: 'недеља_понедељак_уторак_среда_четвртак_петак_субота'.split('_'),
+        weekdaysShort: 'нед._пон._уто._сре._чет._пет._суб.'.split('_'),
+        weekdaysMin: 'не_по_ут_ср_че_пе_су'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'D. M. YYYY.',
+            LL: 'D. MMMM YYYY.',
+            LLL: 'D. MMMM YYYY. H:mm',
+            LLLL: 'dddd, D. MMMM YYYY. H:mm',
+        },
+        calendar: {
+            sameDay: '[данас у] LT',
+            nextDay: '[сутра у] LT',
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[у] [недељу] [у] LT';
+                    case 3:
+                        return '[у] [среду] [у] LT';
+                    case 6:
+                        return '[у] [суботу] [у] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[у] dddd [у] LT';
+                }
+            },
+            lastDay: '[јуче у] LT',
+            lastWeek: function () {
+                var lastWeekDays = [
+                    '[прошле] [недеље] [у] LT',
+                    '[прошлог] [понедељка] [у] LT',
+                    '[прошлог] [уторка] [у] LT',
+                    '[прошле] [среде] [у] LT',
+                    '[прошлог] [четвртка] [у] LT',
+                    '[прошлог] [петка] [у] LT',
+                    '[прошле] [суботе] [у] LT',
+                ];
+                return lastWeekDays[this.day()];
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'за %s',
+            past: 'пре %s',
+            s: 'неколико секунди',
+            ss: translator.translate,
+            m: translator.translate,
+            mm: translator.translate,
+            h: translator.translate,
+            hh: translator.translate,
+            d: translator.translate,
+            dd: translator.translate,
+            M: translator.translate,
+            MM: translator.translate,
+            y: translator.translate,
+            yy: translator.translate,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 1st is the first week of the year.
+        },
+    });
+
+    return srCyrl;
+
+})));
diff --git a/backend/node_modules/moment/locale/sr.js b/backend/node_modules/moment/locale/sr.js
new file mode 100644
index 0000000..8f53e7c
--- /dev/null
+++ b/backend/node_modules/moment/locale/sr.js
@@ -0,0 +1,140 @@
+//! moment.js locale configuration
+//! locale : Serbian [sr]
+//! author : Milan Janačković<milanjanackovic@gmail.com> : https://github.com/milan-j
+//! author : Stefan Crnjaković <stefan@hotmail.rs> : https://github.com/crnjakovic
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var translator = {
+        words: {
+            //Different grammatical cases
+            ss: ['sekunda', 'sekunde', 'sekundi'],
+            m: ['jedan minut', 'jednog minuta'],
+            mm: ['minut', 'minuta', 'minuta'],
+            h: ['jedan sat', 'jednog sata'],
+            hh: ['sat', 'sata', 'sati'],
+            d: ['jedan dan', 'jednog dana'],
+            dd: ['dan', 'dana', 'dana'],
+            M: ['jedan mesec', 'jednog meseca'],
+            MM: ['mesec', 'meseca', 'meseci'],
+            y: ['jednu godinu', 'jedne godine'],
+            yy: ['godinu', 'godine', 'godina'],
+        },
+        correctGrammaticalCase: function (number, wordKey) {
+            if (
+                number % 10 >= 1 &&
+                number % 10 <= 4 &&
+                (number % 100 < 10 || number % 100 >= 20)
+            ) {
+                return number % 10 === 1 ? wordKey[0] : wordKey[1];
+            }
+            return wordKey[2];
+        },
+        translate: function (number, withoutSuffix, key, isFuture) {
+            var wordKey = translator.words[key],
+                word;
+
+            if (key.length === 1) {
+                // Nominativ
+                if (key === 'y' && withoutSuffix) return 'jedna godina';
+                return isFuture || withoutSuffix ? wordKey[0] : wordKey[1];
+            }
+
+            word = translator.correctGrammaticalCase(number, wordKey);
+            // Nominativ
+            if (key === 'yy' && withoutSuffix && word === 'godinu') {
+                return number + ' godina';
+            }
+
+            return number + ' ' + word;
+        },
+    };
+
+    var sr = moment.defineLocale('sr', {
+        months: 'januar_februar_mart_april_maj_jun_jul_avgust_septembar_oktobar_novembar_decembar'.split(
+            '_'
+        ),
+        monthsShort:
+            'jan._feb._mar._apr._maj_jun_jul_avg._sep._okt._nov._dec.'.split('_'),
+        monthsParseExact: true,
+        weekdays: 'nedelja_ponedeljak_utorak_sreda_četvrtak_petak_subota'.split(
+            '_'
+        ),
+        weekdaysShort: 'ned._pon._uto._sre._čet._pet._sub.'.split('_'),
+        weekdaysMin: 'ne_po_ut_sr_če_pe_su'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'D. M. YYYY.',
+            LL: 'D. MMMM YYYY.',
+            LLL: 'D. MMMM YYYY. H:mm',
+            LLLL: 'dddd, D. MMMM YYYY. H:mm',
+        },
+        calendar: {
+            sameDay: '[danas u] LT',
+            nextDay: '[sutra u] LT',
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[u] [nedelju] [u] LT';
+                    case 3:
+                        return '[u] [sredu] [u] LT';
+                    case 6:
+                        return '[u] [subotu] [u] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[u] dddd [u] LT';
+                }
+            },
+            lastDay: '[juče u] LT',
+            lastWeek: function () {
+                var lastWeekDays = [
+                    '[prošle] [nedelje] [u] LT',
+                    '[prošlog] [ponedeljka] [u] LT',
+                    '[prošlog] [utorka] [u] LT',
+                    '[prošle] [srede] [u] LT',
+                    '[prošlog] [četvrtka] [u] LT',
+                    '[prošlog] [petka] [u] LT',
+                    '[prošle] [subote] [u] LT',
+                ];
+                return lastWeekDays[this.day()];
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'za %s',
+            past: 'pre %s',
+            s: 'nekoliko sekundi',
+            ss: translator.translate,
+            m: translator.translate,
+            mm: translator.translate,
+            h: translator.translate,
+            hh: translator.translate,
+            d: translator.translate,
+            dd: translator.translate,
+            M: translator.translate,
+            MM: translator.translate,
+            y: translator.translate,
+            yy: translator.translate,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    return sr;
+
+})));
diff --git a/backend/node_modules/moment/locale/ss.js b/backend/node_modules/moment/locale/ss.js
new file mode 100644
index 0000000..ce8a657
--- /dev/null
+++ b/backend/node_modules/moment/locale/ss.js
@@ -0,0 +1,95 @@
+//! moment.js locale configuration
+//! locale : siSwati [ss]
+//! author : Nicolai Davies<mail@nicolai.io> : https://github.com/nicolaidavies
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var ss = moment.defineLocale('ss', {
+        months: "Bhimbidvwane_Indlovana_Indlov'lenkhulu_Mabasa_Inkhwekhweti_Inhlaba_Kholwane_Ingci_Inyoni_Imphala_Lweti_Ingongoni".split(
+            '_'
+        ),
+        monthsShort: 'Bhi_Ina_Inu_Mab_Ink_Inh_Kho_Igc_Iny_Imp_Lwe_Igo'.split('_'),
+        weekdays:
+            'Lisontfo_Umsombuluko_Lesibili_Lesitsatfu_Lesine_Lesihlanu_Umgcibelo'.split(
+                '_'
+            ),
+        weekdaysShort: 'Lis_Umb_Lsb_Les_Lsi_Lsh_Umg'.split('_'),
+        weekdaysMin: 'Li_Us_Lb_Lt_Ls_Lh_Ug'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY h:mm A',
+            LLLL: 'dddd, D MMMM YYYY h:mm A',
+        },
+        calendar: {
+            sameDay: '[Namuhla nga] LT',
+            nextDay: '[Kusasa nga] LT',
+            nextWeek: 'dddd [nga] LT',
+            lastDay: '[Itolo nga] LT',
+            lastWeek: 'dddd [leliphelile] [nga] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'nga %s',
+            past: 'wenteka nga %s',
+            s: 'emizuzwana lomcane',
+            ss: '%d mzuzwana',
+            m: 'umzuzu',
+            mm: '%d emizuzu',
+            h: 'lihora',
+            hh: '%d emahora',
+            d: 'lilanga',
+            dd: '%d emalanga',
+            M: 'inyanga',
+            MM: '%d tinyanga',
+            y: 'umnyaka',
+            yy: '%d iminyaka',
+        },
+        meridiemParse: /ekuseni|emini|entsambama|ebusuku/,
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 11) {
+                return 'ekuseni';
+            } else if (hours < 15) {
+                return 'emini';
+            } else if (hours < 19) {
+                return 'entsambama';
+            } else {
+                return 'ebusuku';
+            }
+        },
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'ekuseni') {
+                return hour;
+            } else if (meridiem === 'emini') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === 'entsambama' || meridiem === 'ebusuku') {
+                if (hour === 0) {
+                    return 0;
+                }
+                return hour + 12;
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}/,
+        ordinal: '%d',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return ss;
+
+})));
diff --git a/backend/node_modules/moment/locale/sv.js b/backend/node_modules/moment/locale/sv.js
new file mode 100644
index 0000000..5962e87
--- /dev/null
+++ b/backend/node_modules/moment/locale/sv.js
@@ -0,0 +1,79 @@
+//! moment.js locale configuration
+//! locale : Swedish [sv]
+//! author : Jens Alm : https://github.com/ulmus
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var sv = moment.defineLocale('sv', {
+        months: 'januari_februari_mars_april_maj_juni_juli_augusti_september_oktober_november_december'.split(
+            '_'
+        ),
+        monthsShort: 'jan_feb_mar_apr_maj_jun_jul_aug_sep_okt_nov_dec'.split('_'),
+        weekdays: 'söndag_måndag_tisdag_onsdag_torsdag_fredag_lördag'.split('_'),
+        weekdaysShort: 'sön_mån_tis_ons_tor_fre_lör'.split('_'),
+        weekdaysMin: 'sö_må_ti_on_to_fr_lö'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY-MM-DD',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY [kl.] HH:mm',
+            LLLL: 'dddd D MMMM YYYY [kl.] HH:mm',
+            lll: 'D MMM YYYY HH:mm',
+            llll: 'ddd D MMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Idag] LT',
+            nextDay: '[Imorgon] LT',
+            lastDay: '[Igår] LT',
+            nextWeek: '[På] dddd LT',
+            lastWeek: '[I] dddd[s] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'om %s',
+            past: 'för %s sedan',
+            s: 'några sekunder',
+            ss: '%d sekunder',
+            m: 'en minut',
+            mm: '%d minuter',
+            h: 'en timme',
+            hh: '%d timmar',
+            d: 'en dag',
+            dd: '%d dagar',
+            M: 'en månad',
+            MM: '%d månader',
+            y: 'ett år',
+            yy: '%d år',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(\:e|\:a)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? ':e'
+                        : b === 1
+                          ? ':a'
+                          : b === 2
+                            ? ':a'
+                            : b === 3
+                              ? ':e'
+                              : ':e';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return sv;
+
+})));
diff --git a/backend/node_modules/moment/locale/sw.js b/backend/node_modules/moment/locale/sw.js
new file mode 100644
index 0000000..1a5ac64
--- /dev/null
+++ b/backend/node_modules/moment/locale/sw.js
@@ -0,0 +1,66 @@
+//! moment.js locale configuration
+//! locale : Swahili [sw]
+//! author : Fahad Kassim : https://github.com/fadsel
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var sw = moment.defineLocale('sw', {
+        months: 'Januari_Februari_Machi_Aprili_Mei_Juni_Julai_Agosti_Septemba_Oktoba_Novemba_Desemba'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mac_Apr_Mei_Jun_Jul_Ago_Sep_Okt_Nov_Des'.split('_'),
+        weekdays:
+            'Jumapili_Jumatatu_Jumanne_Jumatano_Alhamisi_Ijumaa_Jumamosi'.split(
+                '_'
+            ),
+        weekdaysShort: 'Jpl_Jtat_Jnne_Jtan_Alh_Ijm_Jmos'.split('_'),
+        weekdaysMin: 'J2_J3_J4_J5_Al_Ij_J1'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'hh:mm A',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[leo saa] LT',
+            nextDay: '[kesho saa] LT',
+            nextWeek: '[wiki ijayo] dddd [saat] LT',
+            lastDay: '[jana] LT',
+            lastWeek: '[wiki iliyopita] dddd [saat] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s baadaye',
+            past: 'tokea %s',
+            s: 'hivi punde',
+            ss: 'sekunde %d',
+            m: 'dakika moja',
+            mm: 'dakika %d',
+            h: 'saa limoja',
+            hh: 'masaa %d',
+            d: 'siku moja',
+            dd: 'siku %d',
+            M: 'mwezi mmoja',
+            MM: 'miezi %d',
+            y: 'mwaka mmoja',
+            yy: 'miaka %d',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    return sw;
+
+})));
diff --git a/backend/node_modules/moment/locale/ta.js b/backend/node_modules/moment/locale/ta.js
new file mode 100644
index 0000000..0f28832
--- /dev/null
+++ b/backend/node_modules/moment/locale/ta.js
@@ -0,0 +1,142 @@
+//! moment.js locale configuration
+//! locale : Tamil [ta]
+//! author : Arjunkumar Krishnamoorthy : https://github.com/tk120404
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var symbolMap = {
+            1: '௧',
+            2: '௨',
+            3: '௩',
+            4: '௪',
+            5: '௫',
+            6: '௬',
+            7: '௭',
+            8: '௮',
+            9: '௯',
+            0: '௦',
+        },
+        numberMap = {
+            '௧': '1',
+            '௨': '2',
+            '௩': '3',
+            '௪': '4',
+            '௫': '5',
+            '௬': '6',
+            '௭': '7',
+            '௮': '8',
+            '௯': '9',
+            '௦': '0',
+        };
+
+    var ta = moment.defineLocale('ta', {
+        months: 'ஜனவரி_பிப்ரவரி_மார்ச்_ஏப்ரல்_மே_ஜூன்_ஜூலை_ஆகஸ்ட்_செப்டெம்பர்_அக்டோபர்_நவம்பர்_டிசம்பர்'.split(
+            '_'
+        ),
+        monthsShort:
+            'ஜனவரி_பிப்ரவரி_மார்ச்_ஏப்ரல்_மே_ஜூன்_ஜூலை_ஆகஸ்ட்_செப்டெம்பர்_அக்டோபர்_நவம்பர்_டிசம்பர்'.split(
+                '_'
+            ),
+        weekdays:
+            'ஞாயிற்றுக்கிழமை_திங்கட்கிழமை_செவ்வாய்கிழமை_புதன்கிழமை_வியாழக்கிழமை_வெள்ளிக்கிழமை_சனிக்கிழமை'.split(
+                '_'
+            ),
+        weekdaysShort: 'ஞாயிறு_திங்கள்_செவ்வாய்_புதன்_வியாழன்_வெள்ளி_சனி'.split(
+            '_'
+        ),
+        weekdaysMin: 'ஞா_தி_செ_பு_வி_வெ_ச'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, HH:mm',
+            LLLL: 'dddd, D MMMM YYYY, HH:mm',
+        },
+        calendar: {
+            sameDay: '[இன்று] LT',
+            nextDay: '[நாளை] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[நேற்று] LT',
+            lastWeek: '[கடந்த வாரம்] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s இல்',
+            past: '%s முன்',
+            s: 'ஒரு சில விநாடிகள்',
+            ss: '%d விநாடிகள்',
+            m: 'ஒரு நிமிடம்',
+            mm: '%d நிமிடங்கள்',
+            h: 'ஒரு மணி நேரம்',
+            hh: '%d மணி நேரம்',
+            d: 'ஒரு நாள்',
+            dd: '%d நாட்கள்',
+            M: 'ஒரு மாதம்',
+            MM: '%d மாதங்கள்',
+            y: 'ஒரு வருடம்',
+            yy: '%d ஆண்டுகள்',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}வது/,
+        ordinal: function (number) {
+            return number + 'வது';
+        },
+        preparse: function (string) {
+            return string.replace(/[௧௨௩௪௫௬௭௮௯௦]/g, function (match) {
+                return numberMap[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap[match];
+            });
+        },
+        // refer http://ta.wikipedia.org/s/1er1
+        meridiemParse: /யாமம்|வைகறை|காலை|நண்பகல்|எற்பாடு|மாலை/,
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 2) {
+                return ' யாமம்';
+            } else if (hour < 6) {
+                return ' வைகறை'; // வைகறை
+            } else if (hour < 10) {
+                return ' காலை'; // காலை
+            } else if (hour < 14) {
+                return ' நண்பகல்'; // நண்பகல்
+            } else if (hour < 18) {
+                return ' எற்பாடு'; // எற்பாடு
+            } else if (hour < 22) {
+                return ' மாலை'; // மாலை
+            } else {
+                return ' யாமம்';
+            }
+        },
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'யாமம்') {
+                return hour < 2 ? hour : hour + 12;
+            } else if (meridiem === 'வைகறை' || meridiem === 'காலை') {
+                return hour;
+            } else if (meridiem === 'நண்பகல்') {
+                return hour >= 10 ? hour : hour + 12;
+            } else {
+                return hour + 12;
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    return ta;
+
+})));
diff --git a/backend/node_modules/moment/locale/te.js b/backend/node_modules/moment/locale/te.js
new file mode 100644
index 0000000..85bab7e
--- /dev/null
+++ b/backend/node_modules/moment/locale/te.js
@@ -0,0 +1,99 @@
+//! moment.js locale configuration
+//! locale : Telugu [te]
+//! author : Krishna Chaitanya Thota : https://github.com/kcthota
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var te = moment.defineLocale('te', {
+        months: 'జనవరి_ఫిబ్రవరి_మార్చి_ఏప్రిల్_మే_జూన్_జులై_ఆగస్టు_సెప్టెంబర్_అక్టోబర్_నవంబర్_డిసెంబర్'.split(
+            '_'
+        ),
+        monthsShort:
+            'జన._ఫిబ్ర._మార్చి_ఏప్రి._మే_జూన్_జులై_ఆగ._సెప్._అక్టో._నవ._డిసె.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays:
+            'ఆదివారం_సోమవారం_మంగళవారం_బుధవారం_గురువారం_శుక్రవారం_శనివారం'.split(
+                '_'
+            ),
+        weekdaysShort: 'ఆది_సోమ_మంగళ_బుధ_గురు_శుక్ర_శని'.split('_'),
+        weekdaysMin: 'ఆ_సో_మం_బు_గు_శు_శ'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm',
+            LTS: 'A h:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm',
+        },
+        calendar: {
+            sameDay: '[నేడు] LT',
+            nextDay: '[రేపు] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[నిన్న] LT',
+            lastWeek: '[గత] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s లో',
+            past: '%s క్రితం',
+            s: 'కొన్ని క్షణాలు',
+            ss: '%d సెకన్లు',
+            m: 'ఒక నిమిషం',
+            mm: '%d నిమిషాలు',
+            h: 'ఒక గంట',
+            hh: '%d గంటలు',
+            d: 'ఒక రోజు',
+            dd: '%d రోజులు',
+            M: 'ఒక నెల',
+            MM: '%d నెలలు',
+            y: 'ఒక సంవత్సరం',
+            yy: '%d సంవత్సరాలు',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}వ/,
+        ordinal: '%dవ',
+        meridiemParse: /రాత్రి|ఉదయం|మధ్యాహ్నం|సాయంత్రం/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'రాత్రి') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'ఉదయం') {
+                return hour;
+            } else if (meridiem === 'మధ్యాహ్నం') {
+                return hour >= 10 ? hour : hour + 12;
+            } else if (meridiem === 'సాయంత్రం') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'రాత్రి';
+            } else if (hour < 10) {
+                return 'ఉదయం';
+            } else if (hour < 17) {
+                return 'మధ్యాహ్నం';
+            } else if (hour < 20) {
+                return 'సాయంత్రం';
+            } else {
+                return 'రాత్రి';
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    return te;
+
+})));
diff --git a/backend/node_modules/moment/locale/tet.js b/backend/node_modules/moment/locale/tet.js
new file mode 100644
index 0000000..5c62c6c
--- /dev/null
+++ b/backend/node_modules/moment/locale/tet.js
@@ -0,0 +1,79 @@
+//! moment.js locale configuration
+//! locale : Tetun Dili (East Timor) [tet]
+//! author : Joshua Brooks : https://github.com/joshbrooks
+//! author : Onorio De J. Afonso : https://github.com/marobo
+//! author : Sonia Simoes : https://github.com/soniasimoes
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var tet = moment.defineLocale('tet', {
+        months: 'Janeiru_Fevereiru_Marsu_Abril_Maiu_Juñu_Jullu_Agustu_Setembru_Outubru_Novembru_Dezembru'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Fev_Mar_Abr_Mai_Jun_Jul_Ago_Set_Out_Nov_Dez'.split('_'),
+        weekdays: 'Domingu_Segunda_Tersa_Kuarta_Kinta_Sesta_Sabadu'.split('_'),
+        weekdaysShort: 'Dom_Seg_Ters_Kua_Kint_Sest_Sab'.split('_'),
+        weekdaysMin: 'Do_Seg_Te_Ku_Ki_Ses_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Ohin iha] LT',
+            nextDay: '[Aban iha] LT',
+            nextWeek: 'dddd [iha] LT',
+            lastDay: '[Horiseik iha] LT',
+            lastWeek: 'dddd [semana kotuk] [iha] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'iha %s',
+            past: '%s liuba',
+            s: 'segundu balun',
+            ss: 'segundu %d',
+            m: 'minutu ida',
+            mm: 'minutu %d',
+            h: 'oras ida',
+            hh: 'oras %d',
+            d: 'loron ida',
+            dd: 'loron %d',
+            M: 'fulan ida',
+            MM: 'fulan %d',
+            y: 'tinan ida',
+            yy: 'tinan %d',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return tet;
+
+})));
diff --git a/backend/node_modules/moment/locale/tg.js b/backend/node_modules/moment/locale/tg.js
new file mode 100644
index 0000000..bde72ad
--- /dev/null
+++ b/backend/node_modules/moment/locale/tg.js
@@ -0,0 +1,128 @@
+//! moment.js locale configuration
+//! locale : Tajik [tg]
+//! author : Orif N. Jr. : https://github.com/orif-jr
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var suffixes = {
+        0: '-ум',
+        1: '-ум',
+        2: '-юм',
+        3: '-юм',
+        4: '-ум',
+        5: '-ум',
+        6: '-ум',
+        7: '-ум',
+        8: '-ум',
+        9: '-ум',
+        10: '-ум',
+        12: '-ум',
+        13: '-ум',
+        20: '-ум',
+        30: '-юм',
+        40: '-ум',
+        50: '-ум',
+        60: '-ум',
+        70: '-ум',
+        80: '-ум',
+        90: '-ум',
+        100: '-ум',
+    };
+
+    var tg = moment.defineLocale('tg', {
+        months: {
+            format: 'январи_феврали_марти_апрели_майи_июни_июли_августи_сентябри_октябри_ноябри_декабри'.split(
+                '_'
+            ),
+            standalone:
+                'январ_феврал_март_апрел_май_июн_июл_август_сентябр_октябр_ноябр_декабр'.split(
+                    '_'
+                ),
+        },
+        monthsShort: 'янв_фев_мар_апр_май_июн_июл_авг_сен_окт_ноя_дек'.split('_'),
+        weekdays: 'якшанбе_душанбе_сешанбе_чоршанбе_панҷшанбе_ҷумъа_шанбе'.split(
+            '_'
+        ),
+        weekdaysShort: 'яшб_дшб_сшб_чшб_пшб_ҷум_шнб'.split('_'),
+        weekdaysMin: 'яш_дш_сш_чш_пш_ҷм_шб'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Имрӯз соати] LT',
+            nextDay: '[Фардо соати] LT',
+            lastDay: '[Дирӯз соати] LT',
+            nextWeek: 'dddd[и] [ҳафтаи оянда соати] LT',
+            lastWeek: 'dddd[и] [ҳафтаи гузашта соати] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'баъди %s',
+            past: '%s пеш',
+            s: 'якчанд сония',
+            m: 'як дақиқа',
+            mm: '%d дақиқа',
+            h: 'як соат',
+            hh: '%d соат',
+            d: 'як рӯз',
+            dd: '%d рӯз',
+            M: 'як моҳ',
+            MM: '%d моҳ',
+            y: 'як сол',
+            yy: '%d сол',
+        },
+        meridiemParse: /шаб|субҳ|рӯз|бегоҳ/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'шаб') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'субҳ') {
+                return hour;
+            } else if (meridiem === 'рӯз') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === 'бегоҳ') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'шаб';
+            } else if (hour < 11) {
+                return 'субҳ';
+            } else if (hour < 16) {
+                return 'рӯз';
+            } else if (hour < 19) {
+                return 'бегоҳ';
+            } else {
+                return 'шаб';
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(ум|юм)/,
+        ordinal: function (number) {
+            var a = number % 10,
+                b = number >= 100 ? 100 : null;
+            return number + (suffixes[number] || suffixes[a] || suffixes[b]);
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 1th is the first week of the year.
+        },
+    });
+
+    return tg;
+
+})));
diff --git a/backend/node_modules/moment/locale/th.js b/backend/node_modules/moment/locale/th.js
new file mode 100644
index 0000000..f83bad9
--- /dev/null
+++ b/backend/node_modules/moment/locale/th.js
@@ -0,0 +1,76 @@
+//! moment.js locale configuration
+//! locale : Thai [th]
+//! author : Kridsada Thanabulpong : https://github.com/sirn
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var th = moment.defineLocale('th', {
+        months: 'มกราคม_กุมภาพันธ์_มีนาคม_เมษายน_พฤษภาคม_มิถุนายน_กรกฎาคม_สิงหาคม_กันยายน_ตุลาคม_พฤศจิกายน_ธันวาคม'.split(
+            '_'
+        ),
+        monthsShort:
+            'ม.ค._ก.พ._มี.ค._เม.ย._พ.ค._มิ.ย._ก.ค._ส.ค._ก.ย._ต.ค._พ.ย._ธ.ค.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'อาทิตย์_จันทร์_อังคาร_พุธ_พฤหัสบดี_ศุกร์_เสาร์'.split('_'),
+        weekdaysShort: 'อาทิตย์_จันทร์_อังคาร_พุธ_พฤหัส_ศุกร์_เสาร์'.split('_'), // yes, three characters difference
+        weekdaysMin: 'อา._จ._อ._พ._พฤ._ศ._ส.'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY เวลา H:mm',
+            LLLL: 'วันddddที่ D MMMM YYYY เวลา H:mm',
+        },
+        meridiemParse: /ก่อนเที่ยง|หลังเที่ยง/,
+        isPM: function (input) {
+            return input === 'หลังเที่ยง';
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ก่อนเที่ยง';
+            } else {
+                return 'หลังเที่ยง';
+            }
+        },
+        calendar: {
+            sameDay: '[วันนี้ เวลา] LT',
+            nextDay: '[พรุ่งนี้ เวลา] LT',
+            nextWeek: 'dddd[หน้า เวลา] LT',
+            lastDay: '[เมื่อวานนี้ เวลา] LT',
+            lastWeek: '[วัน]dddd[ที่แล้ว เวลา] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'อีก %s',
+            past: '%sที่แล้ว',
+            s: 'ไม่กี่วินาที',
+            ss: '%d วินาที',
+            m: '1 นาที',
+            mm: '%d นาที',
+            h: '1 ชั่วโมง',
+            hh: '%d ชั่วโมง',
+            d: '1 วัน',
+            dd: '%d วัน',
+            w: '1 สัปดาห์',
+            ww: '%d สัปดาห์',
+            M: '1 เดือน',
+            MM: '%d เดือน',
+            y: '1 ปี',
+            yy: '%d ปี',
+        },
+    });
+
+    return th;
+
+})));
diff --git a/backend/node_modules/moment/locale/tk.js b/backend/node_modules/moment/locale/tk.js
new file mode 100644
index 0000000..24d4ede
--- /dev/null
+++ b/backend/node_modules/moment/locale/tk.js
@@ -0,0 +1,102 @@
+//! moment.js locale configuration
+//! locale : Turkmen [tk]
+//! author : Atamyrat Abdyrahmanov : https://github.com/atamyratabdy
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var suffixes = {
+        1: "'inji",
+        5: "'inji",
+        8: "'inji",
+        70: "'inji",
+        80: "'inji",
+        2: "'nji",
+        7: "'nji",
+        20: "'nji",
+        50: "'nji",
+        3: "'ünji",
+        4: "'ünji",
+        100: "'ünji",
+        6: "'njy",
+        9: "'unjy",
+        10: "'unjy",
+        30: "'unjy",
+        60: "'ynjy",
+        90: "'ynjy",
+    };
+
+    var tk = moment.defineLocale('tk', {
+        months: 'Ýanwar_Fewral_Mart_Aprel_Maý_Iýun_Iýul_Awgust_Sentýabr_Oktýabr_Noýabr_Dekabr'.split(
+            '_'
+        ),
+        monthsShort: 'Ýan_Few_Mar_Apr_Maý_Iýn_Iýl_Awg_Sen_Okt_Noý_Dek'.split('_'),
+        weekdays: 'Ýekşenbe_Duşenbe_Sişenbe_Çarşenbe_Penşenbe_Anna_Şenbe'.split(
+            '_'
+        ),
+        weekdaysShort: 'Ýek_Duş_Siş_Çar_Pen_Ann_Şen'.split('_'),
+        weekdaysMin: 'Ýk_Dş_Sş_Çr_Pn_An_Şn'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[bugün sagat] LT',
+            nextDay: '[ertir sagat] LT',
+            nextWeek: '[indiki] dddd [sagat] LT',
+            lastDay: '[düýn] LT',
+            lastWeek: '[geçen] dddd [sagat] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s soň',
+            past: '%s öň',
+            s: 'birnäçe sekunt',
+            m: 'bir minut',
+            mm: '%d minut',
+            h: 'bir sagat',
+            hh: '%d sagat',
+            d: 'bir gün',
+            dd: '%d gün',
+            M: 'bir aý',
+            MM: '%d aý',
+            y: 'bir ýyl',
+            yy: '%d ýyl',
+        },
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'Do':
+                case 'DD':
+                    return number;
+                default:
+                    if (number === 0) {
+                        // special case for zero
+                        return number + "'unjy";
+                    }
+                    var a = number % 10,
+                        b = (number % 100) - a,
+                        c = number >= 100 ? 100 : null;
+                    return number + (suffixes[a] || suffixes[b] || suffixes[c]);
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    return tk;
+
+})));
diff --git a/backend/node_modules/moment/locale/tl-ph.js b/backend/node_modules/moment/locale/tl-ph.js
new file mode 100644
index 0000000..871b078
--- /dev/null
+++ b/backend/node_modules/moment/locale/tl-ph.js
@@ -0,0 +1,68 @@
+//! moment.js locale configuration
+//! locale : Tagalog (Philippines) [tl-ph]
+//! author : Dan Hagman : https://github.com/hagmandan
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var tlPh = moment.defineLocale('tl-ph', {
+        months: 'Enero_Pebrero_Marso_Abril_Mayo_Hunyo_Hulyo_Agosto_Setyembre_Oktubre_Nobyembre_Disyembre'.split(
+            '_'
+        ),
+        monthsShort: 'Ene_Peb_Mar_Abr_May_Hun_Hul_Ago_Set_Okt_Nob_Dis'.split('_'),
+        weekdays: 'Linggo_Lunes_Martes_Miyerkules_Huwebes_Biyernes_Sabado'.split(
+            '_'
+        ),
+        weekdaysShort: 'Lin_Lun_Mar_Miy_Huw_Biy_Sab'.split('_'),
+        weekdaysMin: 'Li_Lu_Ma_Mi_Hu_Bi_Sab'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'MM/D/YYYY',
+            LL: 'MMMM D, YYYY',
+            LLL: 'MMMM D, YYYY HH:mm',
+            LLLL: 'dddd, MMMM DD, YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: 'LT [ngayong araw]',
+            nextDay: '[Bukas ng] LT',
+            nextWeek: 'LT [sa susunod na] dddd',
+            lastDay: 'LT [kahapon]',
+            lastWeek: 'LT [noong nakaraang] dddd',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'sa loob ng %s',
+            past: '%s ang nakalipas',
+            s: 'ilang segundo',
+            ss: '%d segundo',
+            m: 'isang minuto',
+            mm: '%d minuto',
+            h: 'isang oras',
+            hh: '%d oras',
+            d: 'isang araw',
+            dd: '%d araw',
+            M: 'isang buwan',
+            MM: '%d buwan',
+            y: 'isang taon',
+            yy: '%d taon',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}/,
+        ordinal: function (number) {
+            return number;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return tlPh;
+
+})));
diff --git a/backend/node_modules/moment/locale/tlh.js b/backend/node_modules/moment/locale/tlh.js
new file mode 100644
index 0000000..ed61731
--- /dev/null
+++ b/backend/node_modules/moment/locale/tlh.js
@@ -0,0 +1,135 @@
+//! moment.js locale configuration
+//! locale : Klingon [tlh]
+//! author : Dominika Kruk : https://github.com/amaranthrose
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var numbersNouns = 'pagh_wa’_cha’_wej_loS_vagh_jav_Soch_chorgh_Hut'.split('_');
+
+    function translateFuture(output) {
+        var time = output;
+        time =
+            output.indexOf('jaj') !== -1
+                ? time.slice(0, -3) + 'leS'
+                : output.indexOf('jar') !== -1
+                  ? time.slice(0, -3) + 'waQ'
+                  : output.indexOf('DIS') !== -1
+                    ? time.slice(0, -3) + 'nem'
+                    : time + ' pIq';
+        return time;
+    }
+
+    function translatePast(output) {
+        var time = output;
+        time =
+            output.indexOf('jaj') !== -1
+                ? time.slice(0, -3) + 'Hu’'
+                : output.indexOf('jar') !== -1
+                  ? time.slice(0, -3) + 'wen'
+                  : output.indexOf('DIS') !== -1
+                    ? time.slice(0, -3) + 'ben'
+                    : time + ' ret';
+        return time;
+    }
+
+    function translate(number, withoutSuffix, string, isFuture) {
+        var numberNoun = numberAsNoun(number);
+        switch (string) {
+            case 'ss':
+                return numberNoun + ' lup';
+            case 'mm':
+                return numberNoun + ' tup';
+            case 'hh':
+                return numberNoun + ' rep';
+            case 'dd':
+                return numberNoun + ' jaj';
+            case 'MM':
+                return numberNoun + ' jar';
+            case 'yy':
+                return numberNoun + ' DIS';
+        }
+    }
+
+    function numberAsNoun(number) {
+        var hundred = Math.floor((number % 1000) / 100),
+            ten = Math.floor((number % 100) / 10),
+            one = number % 10,
+            word = '';
+        if (hundred > 0) {
+            word += numbersNouns[hundred] + 'vatlh';
+        }
+        if (ten > 0) {
+            word += (word !== '' ? ' ' : '') + numbersNouns[ten] + 'maH';
+        }
+        if (one > 0) {
+            word += (word !== '' ? ' ' : '') + numbersNouns[one];
+        }
+        return word === '' ? 'pagh' : word;
+    }
+
+    var tlh = moment.defineLocale('tlh', {
+        months: 'tera’ jar wa’_tera’ jar cha’_tera’ jar wej_tera’ jar loS_tera’ jar vagh_tera’ jar jav_tera’ jar Soch_tera’ jar chorgh_tera’ jar Hut_tera’ jar wa’maH_tera’ jar wa’maH wa’_tera’ jar wa’maH cha’'.split(
+            '_'
+        ),
+        monthsShort:
+            'jar wa’_jar cha’_jar wej_jar loS_jar vagh_jar jav_jar Soch_jar chorgh_jar Hut_jar wa’maH_jar wa’maH wa’_jar wa’maH cha’'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'lojmItjaj_DaSjaj_povjaj_ghItlhjaj_loghjaj_buqjaj_ghInjaj'.split(
+            '_'
+        ),
+        weekdaysShort:
+            'lojmItjaj_DaSjaj_povjaj_ghItlhjaj_loghjaj_buqjaj_ghInjaj'.split('_'),
+        weekdaysMin:
+            'lojmItjaj_DaSjaj_povjaj_ghItlhjaj_loghjaj_buqjaj_ghInjaj'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[DaHjaj] LT',
+            nextDay: '[wa’leS] LT',
+            nextWeek: 'LLL',
+            lastDay: '[wa’Hu’] LT',
+            lastWeek: 'LLL',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: translateFuture,
+            past: translatePast,
+            s: 'puS lup',
+            ss: translate,
+            m: 'wa’ tup',
+            mm: translate,
+            h: 'wa’ rep',
+            hh: translate,
+            d: 'wa’ jaj',
+            dd: translate,
+            M: 'wa’ jar',
+            MM: translate,
+            y: 'wa’ DIS',
+            yy: translate,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return tlh;
+
+})));
diff --git a/backend/node_modules/moment/locale/tr.js b/backend/node_modules/moment/locale/tr.js
new file mode 100644
index 0000000..663778e
--- /dev/null
+++ b/backend/node_modules/moment/locale/tr.js
@@ -0,0 +1,117 @@
+//! moment.js locale configuration
+//! locale : Turkish [tr]
+//! authors : Erhan Gundogan : https://github.com/erhangundogan,
+//!           Burak Yiğit Kaya: https://github.com/BYK
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var suffixes = {
+        1: "'inci",
+        5: "'inci",
+        8: "'inci",
+        70: "'inci",
+        80: "'inci",
+        2: "'nci",
+        7: "'nci",
+        20: "'nci",
+        50: "'nci",
+        3: "'üncü",
+        4: "'üncü",
+        100: "'üncü",
+        6: "'ncı",
+        9: "'uncu",
+        10: "'uncu",
+        30: "'uncu",
+        60: "'ıncı",
+        90: "'ıncı",
+    };
+
+    var tr = moment.defineLocale('tr', {
+        months: 'Ocak_Şubat_Mart_Nisan_Mayıs_Haziran_Temmuz_Ağustos_Eylül_Ekim_Kasım_Aralık'.split(
+            '_'
+        ),
+        monthsShort: 'Oca_Şub_Mar_Nis_May_Haz_Tem_Ağu_Eyl_Eki_Kas_Ara'.split('_'),
+        weekdays: 'Pazar_Pazartesi_Salı_Çarşamba_Perşembe_Cuma_Cumartesi'.split(
+            '_'
+        ),
+        weekdaysShort: 'Paz_Pzt_Sal_Çar_Per_Cum_Cmt'.split('_'),
+        weekdaysMin: 'Pz_Pt_Sa_Ça_Pe_Cu_Ct'.split('_'),
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 12) {
+                return isLower ? 'öö' : 'ÖÖ';
+            } else {
+                return isLower ? 'ös' : 'ÖS';
+            }
+        },
+        meridiemParse: /öö|ÖÖ|ös|ÖS/,
+        isPM: function (input) {
+            return input === 'ös' || input === 'ÖS';
+        },
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[bugün saat] LT',
+            nextDay: '[yarın saat] LT',
+            nextWeek: '[gelecek] dddd [saat] LT',
+            lastDay: '[dün] LT',
+            lastWeek: '[geçen] dddd [saat] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s sonra',
+            past: '%s önce',
+            s: 'birkaç saniye',
+            ss: '%d saniye',
+            m: 'bir dakika',
+            mm: '%d dakika',
+            h: 'bir saat',
+            hh: '%d saat',
+            d: 'bir gün',
+            dd: '%d gün',
+            w: 'bir hafta',
+            ww: '%d hafta',
+            M: 'bir ay',
+            MM: '%d ay',
+            y: 'bir yıl',
+            yy: '%d yıl',
+        },
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'Do':
+                case 'DD':
+                    return number;
+                default:
+                    if (number === 0) {
+                        // special case for zero
+                        return number + "'ıncı";
+                    }
+                    var a = number % 10,
+                        b = (number % 100) - a,
+                        c = number >= 100 ? 100 : null;
+                    return number + (suffixes[a] || suffixes[b] || suffixes[c]);
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    return tr;
+
+})));
diff --git a/backend/node_modules/moment/locale/tzl.js b/backend/node_modules/moment/locale/tzl.js
new file mode 100644
index 0000000..43ad139
--- /dev/null
+++ b/backend/node_modules/moment/locale/tzl.js
@@ -0,0 +1,100 @@
+//! moment.js locale configuration
+//! locale : Talossan [tzl]
+//! author : Robin van der Vliet : https://github.com/robin0van0der0v
+//! author : Iustì Canun
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    // After the year there should be a slash and the amount of years since December 26, 1979 in Roman numerals.
+    // This is currently too difficult (maybe even impossible) to add.
+    var tzl = moment.defineLocale('tzl', {
+        months: 'Januar_Fevraglh_Març_Avrïu_Mai_Gün_Julia_Guscht_Setemvar_Listopäts_Noemvar_Zecemvar'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Fev_Mar_Avr_Mai_Gün_Jul_Gus_Set_Lis_Noe_Zec'.split('_'),
+        weekdays: 'Súladi_Lúneçi_Maitzi_Márcuri_Xhúadi_Viénerçi_Sáturi'.split('_'),
+        weekdaysShort: 'Súl_Lún_Mai_Már_Xhú_Vié_Sát'.split('_'),
+        weekdaysMin: 'Sú_Lú_Ma_Má_Xh_Vi_Sá'.split('_'),
+        longDateFormat: {
+            LT: 'HH.mm',
+            LTS: 'HH.mm.ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM [dallas] YYYY',
+            LLL: 'D. MMMM [dallas] YYYY HH.mm',
+            LLLL: 'dddd, [li] D. MMMM [dallas] YYYY HH.mm',
+        },
+        meridiemParse: /d\'o|d\'a/i,
+        isPM: function (input) {
+            return "d'o" === input.toLowerCase();
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours > 11) {
+                return isLower ? "d'o" : "D'O";
+            } else {
+                return isLower ? "d'a" : "D'A";
+            }
+        },
+        calendar: {
+            sameDay: '[oxhi à] LT',
+            nextDay: '[demà à] LT',
+            nextWeek: 'dddd [à] LT',
+            lastDay: '[ieiri à] LT',
+            lastWeek: '[sür el] dddd [lasteu à] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'osprei %s',
+            past: 'ja%s',
+            s: processRelativeTime,
+            ss: processRelativeTime,
+            m: processRelativeTime,
+            mm: processRelativeTime,
+            h: processRelativeTime,
+            hh: processRelativeTime,
+            d: processRelativeTime,
+            dd: processRelativeTime,
+            M: processRelativeTime,
+            MM: processRelativeTime,
+            y: processRelativeTime,
+            yy: processRelativeTime,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    function processRelativeTime(number, withoutSuffix, key, isFuture) {
+        var format = {
+            s: ['viensas secunds', "'iensas secunds"],
+            ss: [number + ' secunds', '' + number + ' secunds'],
+            m: ["'n míut", "'iens míut"],
+            mm: [number + ' míuts', '' + number + ' míuts'],
+            h: ["'n þora", "'iensa þora"],
+            hh: [number + ' þoras', '' + number + ' þoras'],
+            d: ["'n ziua", "'iensa ziua"],
+            dd: [number + ' ziuas', '' + number + ' ziuas'],
+            M: ["'n mes", "'iens mes"],
+            MM: [number + ' mesen', '' + number + ' mesen'],
+            y: ["'n ar", "'iens ar"],
+            yy: [number + ' ars', '' + number + ' ars'],
+        };
+        return isFuture
+            ? format[key][0]
+            : withoutSuffix
+              ? format[key][0]
+              : format[key][1];
+    }
+
+    return tzl;
+
+})));
diff --git a/backend/node_modules/moment/locale/tzm-latn.js b/backend/node_modules/moment/locale/tzm-latn.js
new file mode 100644
index 0000000..34425a7
--- /dev/null
+++ b/backend/node_modules/moment/locale/tzm-latn.js
@@ -0,0 +1,65 @@
+//! moment.js locale configuration
+//! locale : Central Atlas Tamazight Latin [tzm-latn]
+//! author : Abdel Said : https://github.com/abdelsaid
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var tzmLatn = moment.defineLocale('tzm-latn', {
+        months: 'innayr_brˤayrˤ_marˤsˤ_ibrir_mayyw_ywnyw_ywlywz_ɣwšt_šwtanbir_ktˤwbrˤ_nwwanbir_dwjnbir'.split(
+            '_'
+        ),
+        monthsShort:
+            'innayr_brˤayrˤ_marˤsˤ_ibrir_mayyw_ywnyw_ywlywz_ɣwšt_šwtanbir_ktˤwbrˤ_nwwanbir_dwjnbir'.split(
+                '_'
+            ),
+        weekdays: 'asamas_aynas_asinas_akras_akwas_asimwas_asiḍyas'.split('_'),
+        weekdaysShort: 'asamas_aynas_asinas_akras_akwas_asimwas_asiḍyas'.split('_'),
+        weekdaysMin: 'asamas_aynas_asinas_akras_akwas_asimwas_asiḍyas'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[asdkh g] LT',
+            nextDay: '[aska g] LT',
+            nextWeek: 'dddd [g] LT',
+            lastDay: '[assant g] LT',
+            lastWeek: 'dddd [g] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'dadkh s yan %s',
+            past: 'yan %s',
+            s: 'imik',
+            ss: '%d imik',
+            m: 'minuḍ',
+            mm: '%d minuḍ',
+            h: 'saɛa',
+            hh: '%d tassaɛin',
+            d: 'ass',
+            dd: '%d ossan',
+            M: 'ayowr',
+            MM: '%d iyyirn',
+            y: 'asgas',
+            yy: '%d isgasn',
+        },
+        week: {
+            dow: 6, // Saturday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    return tzmLatn;
+
+})));
diff --git a/backend/node_modules/moment/locale/tzm.js b/backend/node_modules/moment/locale/tzm.js
new file mode 100644
index 0000000..5db61f9
--- /dev/null
+++ b/backend/node_modules/moment/locale/tzm.js
@@ -0,0 +1,65 @@
+//! moment.js locale configuration
+//! locale : Central Atlas Tamazight [tzm]
+//! author : Abdel Said : https://github.com/abdelsaid
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var tzm = moment.defineLocale('tzm', {
+        months: 'ⵉⵏⵏⴰⵢⵔ_ⴱⵕⴰⵢⵕ_ⵎⴰⵕⵚ_ⵉⴱⵔⵉⵔ_ⵎⴰⵢⵢⵓ_ⵢⵓⵏⵢⵓ_ⵢⵓⵍⵢⵓⵣ_ⵖⵓⵛⵜ_ⵛⵓⵜⴰⵏⴱⵉⵔ_ⴽⵟⵓⴱⵕ_ⵏⵓⵡⴰⵏⴱⵉⵔ_ⴷⵓⵊⵏⴱⵉⵔ'.split(
+            '_'
+        ),
+        monthsShort:
+            'ⵉⵏⵏⴰⵢⵔ_ⴱⵕⴰⵢⵕ_ⵎⴰⵕⵚ_ⵉⴱⵔⵉⵔ_ⵎⴰⵢⵢⵓ_ⵢⵓⵏⵢⵓ_ⵢⵓⵍⵢⵓⵣ_ⵖⵓⵛⵜ_ⵛⵓⵜⴰⵏⴱⵉⵔ_ⴽⵟⵓⴱⵕ_ⵏⵓⵡⴰⵏⴱⵉⵔ_ⴷⵓⵊⵏⴱⵉⵔ'.split(
+                '_'
+            ),
+        weekdays: 'ⴰⵙⴰⵎⴰⵙ_ⴰⵢⵏⴰⵙ_ⴰⵙⵉⵏⴰⵙ_ⴰⴽⵔⴰⵙ_ⴰⴽⵡⴰⵙ_ⴰⵙⵉⵎⵡⴰⵙ_ⴰⵙⵉⴹⵢⴰⵙ'.split('_'),
+        weekdaysShort: 'ⴰⵙⴰⵎⴰⵙ_ⴰⵢⵏⴰⵙ_ⴰⵙⵉⵏⴰⵙ_ⴰⴽⵔⴰⵙ_ⴰⴽⵡⴰⵙ_ⴰⵙⵉⵎⵡⴰⵙ_ⴰⵙⵉⴹⵢⴰⵙ'.split('_'),
+        weekdaysMin: 'ⴰⵙⴰⵎⴰⵙ_ⴰⵢⵏⴰⵙ_ⴰⵙⵉⵏⴰⵙ_ⴰⴽⵔⴰⵙ_ⴰⴽⵡⴰⵙ_ⴰⵙⵉⵎⵡⴰⵙ_ⴰⵙⵉⴹⵢⴰⵙ'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[ⴰⵙⴷⵅ ⴴ] LT',
+            nextDay: '[ⴰⵙⴽⴰ ⴴ] LT',
+            nextWeek: 'dddd [ⴴ] LT',
+            lastDay: '[ⴰⵚⴰⵏⵜ ⴴ] LT',
+            lastWeek: 'dddd [ⴴ] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'ⴷⴰⴷⵅ ⵙ ⵢⴰⵏ %s',
+            past: 'ⵢⴰⵏ %s',
+            s: 'ⵉⵎⵉⴽ',
+            ss: '%d ⵉⵎⵉⴽ',
+            m: 'ⵎⵉⵏⵓⴺ',
+            mm: '%d ⵎⵉⵏⵓⴺ',
+            h: 'ⵙⴰⵄⴰ',
+            hh: '%d ⵜⴰⵙⵙⴰⵄⵉⵏ',
+            d: 'ⴰⵙⵙ',
+            dd: '%d oⵙⵙⴰⵏ',
+            M: 'ⴰⵢoⵓⵔ',
+            MM: '%d ⵉⵢⵢⵉⵔⵏ',
+            y: 'ⴰⵙⴳⴰⵙ',
+            yy: '%d ⵉⵙⴳⴰⵙⵏ',
+        },
+        week: {
+            dow: 6, // Saturday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    return tzm;
+
+})));
diff --git a/backend/node_modules/moment/locale/ug-cn.js b/backend/node_modules/moment/locale/ug-cn.js
new file mode 100644
index 0000000..5efffdd
--- /dev/null
+++ b/backend/node_modules/moment/locale/ug-cn.js
@@ -0,0 +1,122 @@
+//! moment.js locale configuration
+//! locale : Uyghur (China) [ug-cn]
+//! author: boyaq : https://github.com/boyaq
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var ugCn = moment.defineLocale('ug-cn', {
+        months: 'يانۋار_فېۋرال_مارت_ئاپرېل_ماي_ئىيۇن_ئىيۇل_ئاۋغۇست_سېنتەبىر_ئۆكتەبىر_نويابىر_دېكابىر'.split(
+            '_'
+        ),
+        monthsShort:
+            'يانۋار_فېۋرال_مارت_ئاپرېل_ماي_ئىيۇن_ئىيۇل_ئاۋغۇست_سېنتەبىر_ئۆكتەبىر_نويابىر_دېكابىر'.split(
+                '_'
+            ),
+        weekdays: 'يەكشەنبە_دۈشەنبە_سەيشەنبە_چارشەنبە_پەيشەنبە_جۈمە_شەنبە'.split(
+            '_'
+        ),
+        weekdaysShort: 'يە_دۈ_سە_چا_پە_جۈ_شە'.split('_'),
+        weekdaysMin: 'يە_دۈ_سە_چا_پە_جۈ_شە'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY-MM-DD',
+            LL: 'YYYY-يىلىM-ئاينىڭD-كۈنى',
+            LLL: 'YYYY-يىلىM-ئاينىڭD-كۈنى، HH:mm',
+            LLLL: 'dddd، YYYY-يىلىM-ئاينىڭD-كۈنى، HH:mm',
+        },
+        meridiemParse: /يېرىم كېچە|سەھەر|چۈشتىن بۇرۇن|چۈش|چۈشتىن كېيىن|كەچ/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (
+                meridiem === 'يېرىم كېچە' ||
+                meridiem === 'سەھەر' ||
+                meridiem === 'چۈشتىن بۇرۇن'
+            ) {
+                return hour;
+            } else if (meridiem === 'چۈشتىن كېيىن' || meridiem === 'كەچ') {
+                return hour + 12;
+            } else {
+                return hour >= 11 ? hour : hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            var hm = hour * 100 + minute;
+            if (hm < 600) {
+                return 'يېرىم كېچە';
+            } else if (hm < 900) {
+                return 'سەھەر';
+            } else if (hm < 1130) {
+                return 'چۈشتىن بۇرۇن';
+            } else if (hm < 1230) {
+                return 'چۈش';
+            } else if (hm < 1800) {
+                return 'چۈشتىن كېيىن';
+            } else {
+                return 'كەچ';
+            }
+        },
+        calendar: {
+            sameDay: '[بۈگۈن سائەت] LT',
+            nextDay: '[ئەتە سائەت] LT',
+            nextWeek: '[كېلەركى] dddd [سائەت] LT',
+            lastDay: '[تۆنۈگۈن] LT',
+            lastWeek: '[ئالدىنقى] dddd [سائەت] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s كېيىن',
+            past: '%s بۇرۇن',
+            s: 'نەچچە سېكونت',
+            ss: '%d سېكونت',
+            m: 'بىر مىنۇت',
+            mm: '%d مىنۇت',
+            h: 'بىر سائەت',
+            hh: '%d سائەت',
+            d: 'بىر كۈن',
+            dd: '%d كۈن',
+            M: 'بىر ئاي',
+            MM: '%d ئاي',
+            y: 'بىر يىل',
+            yy: '%d يىل',
+        },
+
+        dayOfMonthOrdinalParse: /\d{1,2}(-كۈنى|-ئاي|-ھەپتە)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'DDD':
+                    return number + '-كۈنى';
+                case 'w':
+                case 'W':
+                    return number + '-ھەپتە';
+                default:
+                    return number;
+            }
+        },
+        preparse: function (string) {
+            return string.replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string.replace(/,/g, '،');
+        },
+        week: {
+            // GB/T 7408-1994《数据元和交换格式·信息交换·日期和时间表示法》与ISO 8601:1988等效
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 1st is the first week of the year.
+        },
+    });
+
+    return ugCn;
+
+})));
diff --git a/backend/node_modules/moment/locale/uk.js b/backend/node_modules/moment/locale/uk.js
new file mode 100644
index 0000000..f5fd352
--- /dev/null
+++ b/backend/node_modules/moment/locale/uk.js
@@ -0,0 +1,178 @@
+//! moment.js locale configuration
+//! locale : Ukrainian [uk]
+//! author : zemlanin : https://github.com/zemlanin
+//! Author : Menelion Elensúle : https://github.com/Oire
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    function plural(word, num) {
+        var forms = word.split('_');
+        return num % 10 === 1 && num % 100 !== 11
+            ? forms[0]
+            : num % 10 >= 2 && num % 10 <= 4 && (num % 100 < 10 || num % 100 >= 20)
+              ? forms[1]
+              : forms[2];
+    }
+    function relativeTimeWithPlural(number, withoutSuffix, key) {
+        var format = {
+            ss: withoutSuffix ? 'секунда_секунди_секунд' : 'секунду_секунди_секунд',
+            mm: withoutSuffix ? 'хвилина_хвилини_хвилин' : 'хвилину_хвилини_хвилин',
+            hh: withoutSuffix ? 'година_години_годин' : 'годину_години_годин',
+            dd: 'день_дні_днів',
+            MM: 'місяць_місяці_місяців',
+            yy: 'рік_роки_років',
+        };
+        if (key === 'm') {
+            return withoutSuffix ? 'хвилина' : 'хвилину';
+        } else if (key === 'h') {
+            return withoutSuffix ? 'година' : 'годину';
+        } else {
+            return number + ' ' + plural(format[key], +number);
+        }
+    }
+    function weekdaysCaseReplace(m, format) {
+        var weekdays = {
+                nominative:
+                    'неділя_понеділок_вівторок_середа_четвер_п’ятниця_субота'.split(
+                        '_'
+                    ),
+                accusative:
+                    'неділю_понеділок_вівторок_середу_четвер_п’ятницю_суботу'.split(
+                        '_'
+                    ),
+                genitive:
+                    'неділі_понеділка_вівторка_середи_четверга_п’ятниці_суботи'.split(
+                        '_'
+                    ),
+            },
+            nounCase;
+
+        if (m === true) {
+            return weekdays['nominative']
+                .slice(1, 7)
+                .concat(weekdays['nominative'].slice(0, 1));
+        }
+        if (!m) {
+            return weekdays['nominative'];
+        }
+
+        nounCase = /(\[[ВвУу]\]) ?dddd/.test(format)
+            ? 'accusative'
+            : /\[?(?:минулої|наступної)? ?\] ?dddd/.test(format)
+              ? 'genitive'
+              : 'nominative';
+        return weekdays[nounCase][m.day()];
+    }
+    function processHoursFunction(str) {
+        return function () {
+            return str + 'о' + (this.hours() === 11 ? 'б' : '') + '] LT';
+        };
+    }
+
+    var uk = moment.defineLocale('uk', {
+        months: {
+            format: 'січня_лютого_березня_квітня_травня_червня_липня_серпня_вересня_жовтня_листопада_грудня'.split(
+                '_'
+            ),
+            standalone:
+                'січень_лютий_березень_квітень_травень_червень_липень_серпень_вересень_жовтень_листопад_грудень'.split(
+                    '_'
+                ),
+        },
+        monthsShort: 'січ_лют_бер_квіт_трав_черв_лип_серп_вер_жовт_лист_груд'.split(
+            '_'
+        ),
+        weekdays: weekdaysCaseReplace,
+        weekdaysShort: 'нд_пн_вт_ср_чт_пт_сб'.split('_'),
+        weekdaysMin: 'нд_пн_вт_ср_чт_пт_сб'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY р.',
+            LLL: 'D MMMM YYYY р., HH:mm',
+            LLLL: 'dddd, D MMMM YYYY р., HH:mm',
+        },
+        calendar: {
+            sameDay: processHoursFunction('[Сьогодні '),
+            nextDay: processHoursFunction('[Завтра '),
+            lastDay: processHoursFunction('[Вчора '),
+            nextWeek: processHoursFunction('[У] dddd ['),
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                    case 3:
+                    case 5:
+                    case 6:
+                        return processHoursFunction('[Минулої] dddd [').call(this);
+                    case 1:
+                    case 2:
+                    case 4:
+                        return processHoursFunction('[Минулого] dddd [').call(this);
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'за %s',
+            past: '%s тому',
+            s: 'декілька секунд',
+            ss: relativeTimeWithPlural,
+            m: relativeTimeWithPlural,
+            mm: relativeTimeWithPlural,
+            h: 'годину',
+            hh: relativeTimeWithPlural,
+            d: 'день',
+            dd: relativeTimeWithPlural,
+            M: 'місяць',
+            MM: relativeTimeWithPlural,
+            y: 'рік',
+            yy: relativeTimeWithPlural,
+        },
+        // M. E.: those two are virtually unused but a user might want to implement them for his/her website for some reason
+        meridiemParse: /ночі|ранку|дня|вечора/,
+        isPM: function (input) {
+            return /^(дня|вечора)$/.test(input);
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'ночі';
+            } else if (hour < 12) {
+                return 'ранку';
+            } else if (hour < 17) {
+                return 'дня';
+            } else {
+                return 'вечора';
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(й|го)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'M':
+                case 'd':
+                case 'DDD':
+                case 'w':
+                case 'W':
+                    return number + '-й';
+                case 'D':
+                    return number + '-го';
+                default:
+                    return number;
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    return uk;
+
+})));
diff --git a/backend/node_modules/moment/locale/ur.js b/backend/node_modules/moment/locale/ur.js
new file mode 100644
index 0000000..9720dcf
--- /dev/null
+++ b/backend/node_modules/moment/locale/ur.js
@@ -0,0 +1,93 @@
+//! moment.js locale configuration
+//! locale : Urdu [ur]
+//! author : Sawood Alam : https://github.com/ibnesayeed
+//! author : Zack : https://github.com/ZackVision
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var months = [
+            'جنوری',
+            'فروری',
+            'مارچ',
+            'اپریل',
+            'مئی',
+            'جون',
+            'جولائی',
+            'اگست',
+            'ستمبر',
+            'اکتوبر',
+            'نومبر',
+            'دسمبر',
+        ],
+        days = ['اتوار', 'پیر', 'منگل', 'بدھ', 'جمعرات', 'جمعہ', 'ہفتہ'];
+
+    var ur = moment.defineLocale('ur', {
+        months: months,
+        monthsShort: months,
+        weekdays: days,
+        weekdaysShort: days,
+        weekdaysMin: days,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd، D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /صبح|شام/,
+        isPM: function (input) {
+            return 'شام' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'صبح';
+            }
+            return 'شام';
+        },
+        calendar: {
+            sameDay: '[آج بوقت] LT',
+            nextDay: '[کل بوقت] LT',
+            nextWeek: 'dddd [بوقت] LT',
+            lastDay: '[گذشتہ روز بوقت] LT',
+            lastWeek: '[گذشتہ] dddd [بوقت] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s بعد',
+            past: '%s قبل',
+            s: 'چند سیکنڈ',
+            ss: '%d سیکنڈ',
+            m: 'ایک منٹ',
+            mm: '%d منٹ',
+            h: 'ایک گھنٹہ',
+            hh: '%d گھنٹے',
+            d: 'ایک دن',
+            dd: '%d دن',
+            M: 'ایک ماہ',
+            MM: '%d ماہ',
+            y: 'ایک سال',
+            yy: '%d سال',
+        },
+        preparse: function (string) {
+            return string.replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string.replace(/,/g, '،');
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return ur;
+
+})));
diff --git a/backend/node_modules/moment/locale/uz-latn.js b/backend/node_modules/moment/locale/uz-latn.js
new file mode 100644
index 0000000..af08e60
--- /dev/null
+++ b/backend/node_modules/moment/locale/uz-latn.js
@@ -0,0 +1,65 @@
+//! moment.js locale configuration
+//! locale : Uzbek Latin [uz-latn]
+//! author : Rasulbek Mirzayev : github.com/Rasulbeeek
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var uzLatn = moment.defineLocale('uz-latn', {
+        months: 'Yanvar_Fevral_Mart_Aprel_May_Iyun_Iyul_Avgust_Sentabr_Oktabr_Noyabr_Dekabr'.split(
+            '_'
+        ),
+        monthsShort: 'Yan_Fev_Mar_Apr_May_Iyun_Iyul_Avg_Sen_Okt_Noy_Dek'.split('_'),
+        weekdays:
+            'Yakshanba_Dushanba_Seshanba_Chorshanba_Payshanba_Juma_Shanba'.split(
+                '_'
+            ),
+        weekdaysShort: 'Yak_Dush_Sesh_Chor_Pay_Jum_Shan'.split('_'),
+        weekdaysMin: 'Ya_Du_Se_Cho_Pa_Ju_Sha'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'D MMMM YYYY, dddd HH:mm',
+        },
+        calendar: {
+            sameDay: '[Bugun soat] LT [da]',
+            nextDay: '[Ertaga] LT [da]',
+            nextWeek: 'dddd [kuni soat] LT [da]',
+            lastDay: '[Kecha soat] LT [da]',
+            lastWeek: "[O'tgan] dddd [kuni soat] LT [da]",
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'Yaqin %s ichida',
+            past: 'Bir necha %s oldin',
+            s: 'soniya',
+            ss: '%d soniya',
+            m: 'bir daqiqa',
+            mm: '%d daqiqa',
+            h: 'bir soat',
+            hh: '%d soat',
+            d: 'bir kun',
+            dd: '%d kun',
+            M: 'bir oy',
+            MM: '%d oy',
+            y: 'bir yil',
+            yy: '%d yil',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    return uzLatn;
+
+})));
diff --git a/backend/node_modules/moment/locale/uz.js b/backend/node_modules/moment/locale/uz.js
new file mode 100644
index 0000000..a8a87fc
--- /dev/null
+++ b/backend/node_modules/moment/locale/uz.js
@@ -0,0 +1,62 @@
+//! moment.js locale configuration
+//! locale : Uzbek [uz]
+//! author : Sardor Muminov : https://github.com/muminoff
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var uz = moment.defineLocale('uz', {
+        months: 'январ_феврал_март_апрел_май_июн_июл_август_сентябр_октябр_ноябр_декабр'.split(
+            '_'
+        ),
+        monthsShort: 'янв_фев_мар_апр_май_июн_июл_авг_сен_окт_ноя_дек'.split('_'),
+        weekdays: 'Якшанба_Душанба_Сешанба_Чоршанба_Пайшанба_Жума_Шанба'.split('_'),
+        weekdaysShort: 'Якш_Душ_Сеш_Чор_Пай_Жум_Шан'.split('_'),
+        weekdaysMin: 'Як_Ду_Се_Чо_Па_Жу_Ша'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'D MMMM YYYY, dddd HH:mm',
+        },
+        calendar: {
+            sameDay: '[Бугун соат] LT [да]',
+            nextDay: '[Эртага] LT [да]',
+            nextWeek: 'dddd [куни соат] LT [да]',
+            lastDay: '[Кеча соат] LT [да]',
+            lastWeek: '[Утган] dddd [куни соат] LT [да]',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'Якин %s ичида',
+            past: 'Бир неча %s олдин',
+            s: 'фурсат',
+            ss: '%d фурсат',
+            m: 'бир дакика',
+            mm: '%d дакика',
+            h: 'бир соат',
+            hh: '%d соат',
+            d: 'бир кун',
+            dd: '%d кун',
+            M: 'бир ой',
+            MM: '%d ой',
+            y: 'бир йил',
+            yy: '%d йил',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return uz;
+
+})));
diff --git a/backend/node_modules/moment/locale/vi.js b/backend/node_modules/moment/locale/vi.js
new file mode 100644
index 0000000..fb6b4b4
--- /dev/null
+++ b/backend/node_modules/moment/locale/vi.js
@@ -0,0 +1,91 @@
+//! moment.js locale configuration
+//! locale : Vietnamese [vi]
+//! author : Bang Nguyen : https://github.com/bangnk
+//! author : Chien Kira : https://github.com/chienkira
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var vi = moment.defineLocale('vi', {
+        months: 'tháng 1_tháng 2_tháng 3_tháng 4_tháng 5_tháng 6_tháng 7_tháng 8_tháng 9_tháng 10_tháng 11_tháng 12'.split(
+            '_'
+        ),
+        monthsShort:
+            'Thg 01_Thg 02_Thg 03_Thg 04_Thg 05_Thg 06_Thg 07_Thg 08_Thg 09_Thg 10_Thg 11_Thg 12'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'chủ nhật_thứ hai_thứ ba_thứ tư_thứ năm_thứ sáu_thứ bảy'.split(
+            '_'
+        ),
+        weekdaysShort: 'CN_T2_T3_T4_T5_T6_T7'.split('_'),
+        weekdaysMin: 'CN_T2_T3_T4_T5_T6_T7'.split('_'),
+        weekdaysParseExact: true,
+        meridiemParse: /sa|ch/i,
+        isPM: function (input) {
+            return /^ch$/i.test(input);
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 12) {
+                return isLower ? 'sa' : 'SA';
+            } else {
+                return isLower ? 'ch' : 'CH';
+            }
+        },
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM [năm] YYYY',
+            LLL: 'D MMMM [năm] YYYY HH:mm',
+            LLLL: 'dddd, D MMMM [năm] YYYY HH:mm',
+            l: 'DD/M/YYYY',
+            ll: 'D MMM YYYY',
+            lll: 'D MMM YYYY HH:mm',
+            llll: 'ddd, D MMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Hôm nay lúc] LT',
+            nextDay: '[Ngày mai lúc] LT',
+            nextWeek: 'dddd [tuần tới lúc] LT',
+            lastDay: '[Hôm qua lúc] LT',
+            lastWeek: 'dddd [tuần trước lúc] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s tới',
+            past: '%s trước',
+            s: 'vài giây',
+            ss: '%d giây',
+            m: 'một phút',
+            mm: '%d phút',
+            h: 'một giờ',
+            hh: '%d giờ',
+            d: 'một ngày',
+            dd: '%d ngày',
+            w: 'một tuần',
+            ww: '%d tuần',
+            M: 'một tháng',
+            MM: '%d tháng',
+            y: 'một năm',
+            yy: '%d năm',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}/,
+        ordinal: function (number) {
+            return number;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return vi;
+
+})));
diff --git a/backend/node_modules/moment/locale/x-pseudo.js b/backend/node_modules/moment/locale/x-pseudo.js
new file mode 100644
index 0000000..a46e1d7
--- /dev/null
+++ b/backend/node_modules/moment/locale/x-pseudo.js
@@ -0,0 +1,84 @@
+//! moment.js locale configuration
+//! locale : Pseudo [x-pseudo]
+//! author : Andrew Hood : https://github.com/andrewhood125
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var xPseudo = moment.defineLocale('x-pseudo', {
+        months: 'J~áñúá~rý_F~ébrú~árý_~Márc~h_Áp~ríl_~Máý_~Júñé~_Júl~ý_Áú~gúst~_Sép~témb~ér_Ó~ctób~ér_Ñ~óvém~bér_~Décé~mbér'.split(
+            '_'
+        ),
+        monthsShort:
+            'J~áñ_~Féb_~Már_~Ápr_~Máý_~Júñ_~Júl_~Áúg_~Sép_~Óct_~Ñóv_~Déc'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays:
+            'S~úñdá~ý_Mó~ñdáý~_Túé~sdáý~_Wéd~ñésd~áý_T~húrs~dáý_~Fríd~áý_S~átúr~dáý'.split(
+                '_'
+            ),
+        weekdaysShort: 'S~úñ_~Móñ_~Túé_~Wéd_~Thú_~Frí_~Sát'.split('_'),
+        weekdaysMin: 'S~ú_Mó~_Tú_~Wé_T~h_Fr~_Sá'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[T~ódá~ý át] LT',
+            nextDay: '[T~ómó~rró~w át] LT',
+            nextWeek: 'dddd [át] LT',
+            lastDay: '[Ý~ést~érdá~ý át] LT',
+            lastWeek: '[L~ást] dddd [át] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'í~ñ %s',
+            past: '%s á~gó',
+            s: 'á ~féw ~sécó~ñds',
+            ss: '%d s~écóñ~ds',
+            m: 'á ~míñ~úté',
+            mm: '%d m~íñú~tés',
+            h: 'á~ñ hó~úr',
+            hh: '%d h~óúrs',
+            d: 'á ~dáý',
+            dd: '%d d~áýs',
+            M: 'á ~móñ~th',
+            MM: '%d m~óñt~hs',
+            y: 'á ~ýéár',
+            yy: '%d ý~éárs',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return xPseudo;
+
+})));
diff --git a/backend/node_modules/moment/locale/yo.js b/backend/node_modules/moment/locale/yo.js
new file mode 100644
index 0000000..9fe818b
--- /dev/null
+++ b/backend/node_modules/moment/locale/yo.js
@@ -0,0 +1,64 @@
+//! moment.js locale configuration
+//! locale : Yoruba Nigeria [yo]
+//! author : Atolagbe Abisoye : https://github.com/andela-batolagbe
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var yo = moment.defineLocale('yo', {
+        months: 'Sẹ́rẹ́_Èrèlè_Ẹrẹ̀nà_Ìgbé_Èbibi_Òkùdu_Agẹmo_Ògún_Owewe_Ọ̀wàrà_Bélú_Ọ̀pẹ̀̀'.split(
+            '_'
+        ),
+        monthsShort: 'Sẹ́r_Èrl_Ẹrn_Ìgb_Èbi_Òkù_Agẹ_Ògú_Owe_Ọ̀wà_Bél_Ọ̀pẹ̀̀'.split('_'),
+        weekdays: 'Àìkú_Ajé_Ìsẹ́gun_Ọjọ́rú_Ọjọ́bọ_Ẹtì_Àbámẹ́ta'.split('_'),
+        weekdaysShort: 'Àìk_Ajé_Ìsẹ́_Ọjr_Ọjb_Ẹtì_Àbá'.split('_'),
+        weekdaysMin: 'Àì_Aj_Ìs_Ọr_Ọb_Ẹt_Àb'.split('_'),
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY h:mm A',
+            LLLL: 'dddd, D MMMM YYYY h:mm A',
+        },
+        calendar: {
+            sameDay: '[Ònì ni] LT',
+            nextDay: '[Ọ̀la ni] LT',
+            nextWeek: "dddd [Ọsẹ̀ tón'bọ] [ni] LT",
+            lastDay: '[Àna ni] LT',
+            lastWeek: 'dddd [Ọsẹ̀ tólọ́] [ni] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'ní %s',
+            past: '%s kọjá',
+            s: 'ìsẹjú aayá die',
+            ss: 'aayá %d',
+            m: 'ìsẹjú kan',
+            mm: 'ìsẹjú %d',
+            h: 'wákati kan',
+            hh: 'wákati %d',
+            d: 'ọjọ́ kan',
+            dd: 'ọjọ́ %d',
+            M: 'osù kan',
+            MM: 'osù %d',
+            y: 'ọdún kan',
+            yy: 'ọdún %d',
+        },
+        dayOfMonthOrdinalParse: /ọjọ́\s\d{1,2}/,
+        ordinal: 'ọjọ́ %d',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return yo;
+
+})));
diff --git a/backend/node_modules/moment/locale/zh-cn.js b/backend/node_modules/moment/locale/zh-cn.js
new file mode 100644
index 0000000..c14ca47
--- /dev/null
+++ b/backend/node_modules/moment/locale/zh-cn.js
@@ -0,0 +1,131 @@
+//! moment.js locale configuration
+//! locale : Chinese (China) [zh-cn]
+//! author : suupic : https://github.com/suupic
+//! author : Zeno Zeng : https://github.com/zenozeng
+//! author : uu109 : https://github.com/uu109
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var zhCn = moment.defineLocale('zh-cn', {
+        months: '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.split(
+            '_'
+        ),
+        monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+            '_'
+        ),
+        weekdays: '星期日_星期一_星期二_星期三_星期四_星期五_星期六'.split('_'),
+        weekdaysShort: '周日_周一_周二_周三_周四_周五_周六'.split('_'),
+        weekdaysMin: '日_一_二_三_四_五_六'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY/MM/DD',
+            LL: 'YYYY年M月D日',
+            LLL: 'YYYY年M月D日Ah点mm分',
+            LLLL: 'YYYY年M月D日ddddAh点mm分',
+            l: 'YYYY/M/D',
+            ll: 'YYYY年M月D日',
+            lll: 'YYYY年M月D日 HH:mm',
+            llll: 'YYYY年M月D日dddd HH:mm',
+        },
+        meridiemParse: /凌晨|早上|上午|中午|下午|晚上/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === '凌晨' || meridiem === '早上' || meridiem === '上午') {
+                return hour;
+            } else if (meridiem === '下午' || meridiem === '晚上') {
+                return hour + 12;
+            } else {
+                // '中午'
+                return hour >= 11 ? hour : hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            var hm = hour * 100 + minute;
+            if (hm < 600) {
+                return '凌晨';
+            } else if (hm < 900) {
+                return '早上';
+            } else if (hm < 1130) {
+                return '上午';
+            } else if (hm < 1230) {
+                return '中午';
+            } else if (hm < 1800) {
+                return '下午';
+            } else {
+                return '晚上';
+            }
+        },
+        calendar: {
+            sameDay: '[今天]LT',
+            nextDay: '[明天]LT',
+            nextWeek: function (now) {
+                if (now.week() !== this.week()) {
+                    return '[下]dddLT';
+                } else {
+                    return '[本]dddLT';
+                }
+            },
+            lastDay: '[昨天]LT',
+            lastWeek: function (now) {
+                if (this.week() !== now.week()) {
+                    return '[上]dddLT';
+                } else {
+                    return '[本]dddLT';
+                }
+            },
+            sameElse: 'L',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(日|月|周)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'DDD':
+                    return number + '日';
+                case 'M':
+                    return number + '月';
+                case 'w':
+                case 'W':
+                    return number + '周';
+                default:
+                    return number;
+            }
+        },
+        relativeTime: {
+            future: '%s后',
+            past: '%s前',
+            s: '几秒',
+            ss: '%d 秒',
+            m: '1 分钟',
+            mm: '%d 分钟',
+            h: '1 小时',
+            hh: '%d 小时',
+            d: '1 天',
+            dd: '%d 天',
+            w: '1 周',
+            ww: '%d 周',
+            M: '1 个月',
+            MM: '%d 个月',
+            y: '1 年',
+            yy: '%d 年',
+        },
+        week: {
+            // GB/T 7408-1994《数据元和交换格式·信息交换·日期和时间表示法》与ISO 8601:1988等效
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    return zhCn;
+
+})));
diff --git a/backend/node_modules/moment/locale/zh-hk.js b/backend/node_modules/moment/locale/zh-hk.js
new file mode 100644
index 0000000..de900fd
--- /dev/null
+++ b/backend/node_modules/moment/locale/zh-hk.js
@@ -0,0 +1,112 @@
+//! moment.js locale configuration
+//! locale : Chinese (Hong Kong) [zh-hk]
+//! author : Ben : https://github.com/ben-lin
+//! author : Chris Lam : https://github.com/hehachris
+//! author : Konstantin : https://github.com/skfd
+//! author : Anthony : https://github.com/anthonylau
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var zhHk = moment.defineLocale('zh-hk', {
+        months: '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.split(
+            '_'
+        ),
+        monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+            '_'
+        ),
+        weekdays: '星期日_星期一_星期二_星期三_星期四_星期五_星期六'.split('_'),
+        weekdaysShort: '週日_週一_週二_週三_週四_週五_週六'.split('_'),
+        weekdaysMin: '日_一_二_三_四_五_六'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY/MM/DD',
+            LL: 'YYYY年M月D日',
+            LLL: 'YYYY年M月D日 HH:mm',
+            LLLL: 'YYYY年M月D日dddd HH:mm',
+            l: 'YYYY/M/D',
+            ll: 'YYYY年M月D日',
+            lll: 'YYYY年M月D日 HH:mm',
+            llll: 'YYYY年M月D日dddd HH:mm',
+        },
+        meridiemParse: /凌晨|早上|上午|中午|下午|晚上/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === '凌晨' || meridiem === '早上' || meridiem === '上午') {
+                return hour;
+            } else if (meridiem === '中午') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === '下午' || meridiem === '晚上') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            var hm = hour * 100 + minute;
+            if (hm < 600) {
+                return '凌晨';
+            } else if (hm < 900) {
+                return '早上';
+            } else if (hm < 1200) {
+                return '上午';
+            } else if (hm === 1200) {
+                return '中午';
+            } else if (hm < 1800) {
+                return '下午';
+            } else {
+                return '晚上';
+            }
+        },
+        calendar: {
+            sameDay: '[今天]LT',
+            nextDay: '[明天]LT',
+            nextWeek: '[下]ddddLT',
+            lastDay: '[昨天]LT',
+            lastWeek: '[上]ddddLT',
+            sameElse: 'L',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(日|月|週)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'DDD':
+                    return number + '日';
+                case 'M':
+                    return number + '月';
+                case 'w':
+                case 'W':
+                    return number + '週';
+                default:
+                    return number;
+            }
+        },
+        relativeTime: {
+            future: '%s後',
+            past: '%s前',
+            s: '幾秒',
+            ss: '%d 秒',
+            m: '1 分鐘',
+            mm: '%d 分鐘',
+            h: '1 小時',
+            hh: '%d 小時',
+            d: '1 天',
+            dd: '%d 天',
+            M: '1 個月',
+            MM: '%d 個月',
+            y: '1 年',
+            yy: '%d 年',
+        },
+    });
+
+    return zhHk;
+
+})));
diff --git a/backend/node_modules/moment/locale/zh-mo.js b/backend/node_modules/moment/locale/zh-mo.js
new file mode 100644
index 0000000..b32feab
--- /dev/null
+++ b/backend/node_modules/moment/locale/zh-mo.js
@@ -0,0 +1,111 @@
+//! moment.js locale configuration
+//! locale : Chinese (Macau) [zh-mo]
+//! author : Ben : https://github.com/ben-lin
+//! author : Chris Lam : https://github.com/hehachris
+//! author : Tan Yuanhong : https://github.com/le0tan
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var zhMo = moment.defineLocale('zh-mo', {
+        months: '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.split(
+            '_'
+        ),
+        monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+            '_'
+        ),
+        weekdays: '星期日_星期一_星期二_星期三_星期四_星期五_星期六'.split('_'),
+        weekdaysShort: '週日_週一_週二_週三_週四_週五_週六'.split('_'),
+        weekdaysMin: '日_一_二_三_四_五_六'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'YYYY年M月D日',
+            LLL: 'YYYY年M月D日 HH:mm',
+            LLLL: 'YYYY年M月D日dddd HH:mm',
+            l: 'D/M/YYYY',
+            ll: 'YYYY年M月D日',
+            lll: 'YYYY年M月D日 HH:mm',
+            llll: 'YYYY年M月D日dddd HH:mm',
+        },
+        meridiemParse: /凌晨|早上|上午|中午|下午|晚上/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === '凌晨' || meridiem === '早上' || meridiem === '上午') {
+                return hour;
+            } else if (meridiem === '中午') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === '下午' || meridiem === '晚上') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            var hm = hour * 100 + minute;
+            if (hm < 600) {
+                return '凌晨';
+            } else if (hm < 900) {
+                return '早上';
+            } else if (hm < 1130) {
+                return '上午';
+            } else if (hm < 1230) {
+                return '中午';
+            } else if (hm < 1800) {
+                return '下午';
+            } else {
+                return '晚上';
+            }
+        },
+        calendar: {
+            sameDay: '[今天] LT',
+            nextDay: '[明天] LT',
+            nextWeek: '[下]dddd LT',
+            lastDay: '[昨天] LT',
+            lastWeek: '[上]dddd LT',
+            sameElse: 'L',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(日|月|週)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'DDD':
+                    return number + '日';
+                case 'M':
+                    return number + '月';
+                case 'w':
+                case 'W':
+                    return number + '週';
+                default:
+                    return number;
+            }
+        },
+        relativeTime: {
+            future: '%s內',
+            past: '%s前',
+            s: '幾秒',
+            ss: '%d 秒',
+            m: '1 分鐘',
+            mm: '%d 分鐘',
+            h: '1 小時',
+            hh: '%d 小時',
+            d: '1 天',
+            dd: '%d 天',
+            M: '1 個月',
+            MM: '%d 個月',
+            y: '1 年',
+            yy: '%d 年',
+        },
+    });
+
+    return zhMo;
+
+})));
diff --git a/backend/node_modules/moment/locale/zh-tw.js b/backend/node_modules/moment/locale/zh-tw.js
new file mode 100644
index 0000000..4f80ece
--- /dev/null
+++ b/backend/node_modules/moment/locale/zh-tw.js
@@ -0,0 +1,110 @@
+//! moment.js locale configuration
+//! locale : Chinese (Taiwan) [zh-tw]
+//! author : Ben : https://github.com/ben-lin
+//! author : Chris Lam : https://github.com/hehachris
+
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    var zhTw = moment.defineLocale('zh-tw', {
+        months: '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.split(
+            '_'
+        ),
+        monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+            '_'
+        ),
+        weekdays: '星期日_星期一_星期二_星期三_星期四_星期五_星期六'.split('_'),
+        weekdaysShort: '週日_週一_週二_週三_週四_週五_週六'.split('_'),
+        weekdaysMin: '日_一_二_三_四_五_六'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY/MM/DD',
+            LL: 'YYYY年M月D日',
+            LLL: 'YYYY年M月D日 HH:mm',
+            LLLL: 'YYYY年M月D日dddd HH:mm',
+            l: 'YYYY/M/D',
+            ll: 'YYYY年M月D日',
+            lll: 'YYYY年M月D日 HH:mm',
+            llll: 'YYYY年M月D日dddd HH:mm',
+        },
+        meridiemParse: /凌晨|早上|上午|中午|下午|晚上/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === '凌晨' || meridiem === '早上' || meridiem === '上午') {
+                return hour;
+            } else if (meridiem === '中午') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === '下午' || meridiem === '晚上') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            var hm = hour * 100 + minute;
+            if (hm < 600) {
+                return '凌晨';
+            } else if (hm < 900) {
+                return '早上';
+            } else if (hm < 1130) {
+                return '上午';
+            } else if (hm < 1230) {
+                return '中午';
+            } else if (hm < 1800) {
+                return '下午';
+            } else {
+                return '晚上';
+            }
+        },
+        calendar: {
+            sameDay: '[今天] LT',
+            nextDay: '[明天] LT',
+            nextWeek: '[下]dddd LT',
+            lastDay: '[昨天] LT',
+            lastWeek: '[上]dddd LT',
+            sameElse: 'L',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(日|月|週)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'DDD':
+                    return number + '日';
+                case 'M':
+                    return number + '月';
+                case 'w':
+                case 'W':
+                    return number + '週';
+                default:
+                    return number;
+            }
+        },
+        relativeTime: {
+            future: '%s後',
+            past: '%s前',
+            s: '幾秒',
+            ss: '%d 秒',
+            m: '1 分鐘',
+            mm: '%d 分鐘',
+            h: '1 小時',
+            hh: '%d 小時',
+            d: '1 天',
+            dd: '%d 天',
+            M: '1 個月',
+            MM: '%d 個月',
+            y: '1 年',
+            yy: '%d 年',
+        },
+    });
+
+    return zhTw;
+
+})));
diff --git a/backend/node_modules/moment/min/locales.js b/backend/node_modules/moment/min/locales.js
new file mode 100644
index 0000000..19ba0f9
--- /dev/null
+++ b/backend/node_modules/moment/min/locales.js
@@ -0,0 +1,12800 @@
+;(function (global, factory) {
+   typeof exports === 'object' && typeof module !== 'undefined'
+       && typeof require === 'function' ? factory(require('../moment')) :
+   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
+   factory(global.moment)
+}(this, (function (moment) { 'use strict';
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('af', {
+        months: 'Januarie_Februarie_Maart_April_Mei_Junie_Julie_Augustus_September_Oktober_November_Desember'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mrt_Apr_Mei_Jun_Jul_Aug_Sep_Okt_Nov_Des'.split('_'),
+        weekdays: 'Sondag_Maandag_Dinsdag_Woensdag_Donderdag_Vrydag_Saterdag'.split(
+            '_'
+        ),
+        weekdaysShort: 'Son_Maa_Din_Woe_Don_Vry_Sat'.split('_'),
+        weekdaysMin: 'So_Ma_Di_Wo_Do_Vr_Sa'.split('_'),
+        meridiemParse: /vm|nm/i,
+        isPM: function (input) {
+            return /^nm$/i.test(input);
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 12) {
+                return isLower ? 'vm' : 'VM';
+            } else {
+                return isLower ? 'nm' : 'NM';
+            }
+        },
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Vandag om] LT',
+            nextDay: '[Môre om] LT',
+            nextWeek: 'dddd [om] LT',
+            lastDay: '[Gister om] LT',
+            lastWeek: '[Laas] dddd [om] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'oor %s',
+            past: '%s gelede',
+            s: "'n paar sekondes",
+            ss: '%d sekondes',
+            m: "'n minuut",
+            mm: '%d minute',
+            h: "'n uur",
+            hh: '%d ure',
+            d: "'n dag",
+            dd: '%d dae',
+            M: "'n maand",
+            MM: '%d maande',
+            y: "'n jaar",
+            yy: '%d jaar',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
+        ordinal: function (number) {
+            return (
+                number +
+                (number === 1 || number === 8 || number >= 20 ? 'ste' : 'de')
+            ); // Thanks to Joris Röling : https://github.com/jjupiter
+        },
+        week: {
+            dow: 1, // Maandag is die eerste dag van die week.
+            doy: 4, // Die week wat die 4de Januarie bevat is die eerste week van die jaar.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var pluralForm = function (n) {
+            return n === 0
+                ? 0
+                : n === 1
+                  ? 1
+                  : n === 2
+                    ? 2
+                    : n % 100 >= 3 && n % 100 <= 10
+                      ? 3
+                      : n % 100 >= 11
+                        ? 4
+                        : 5;
+        },
+        plurals = {
+            s: [
+                'أقل من ثانية',
+                'ثانية واحدة',
+                ['ثانيتان', 'ثانيتين'],
+                '%d ثوان',
+                '%d ثانية',
+                '%d ثانية',
+            ],
+            m: [
+                'أقل من دقيقة',
+                'دقيقة واحدة',
+                ['دقيقتان', 'دقيقتين'],
+                '%d دقائق',
+                '%d دقيقة',
+                '%d دقيقة',
+            ],
+            h: [
+                'أقل من ساعة',
+                'ساعة واحدة',
+                ['ساعتان', 'ساعتين'],
+                '%d ساعات',
+                '%d ساعة',
+                '%d ساعة',
+            ],
+            d: [
+                'أقل من يوم',
+                'يوم واحد',
+                ['يومان', 'يومين'],
+                '%d أيام',
+                '%d يومًا',
+                '%d يوم',
+            ],
+            M: [
+                'أقل من شهر',
+                'شهر واحد',
+                ['شهران', 'شهرين'],
+                '%d أشهر',
+                '%d شهرا',
+                '%d شهر',
+            ],
+            y: [
+                'أقل من عام',
+                'عام واحد',
+                ['عامان', 'عامين'],
+                '%d أعوام',
+                '%d عامًا',
+                '%d عام',
+            ],
+        },
+        pluralize = function (u) {
+            return function (number, withoutSuffix, string, isFuture) {
+                var f = pluralForm(number),
+                    str = plurals[u][pluralForm(number)];
+                if (f === 2) {
+                    str = str[withoutSuffix ? 0 : 1];
+                }
+                return str.replace(/%d/i, number);
+            };
+        },
+        months = [
+            'جانفي',
+            'فيفري',
+            'مارس',
+            'أفريل',
+            'ماي',
+            'جوان',
+            'جويلية',
+            'أوت',
+            'سبتمبر',
+            'أكتوبر',
+            'نوفمبر',
+            'ديسمبر',
+        ];
+
+    moment.defineLocale('ar-dz', {
+        months: months,
+        monthsShort: months,
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'D/\u200FM/\u200FYYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ص|م/,
+        isPM: function (input) {
+            return 'م' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ص';
+            } else {
+                return 'م';
+            }
+        },
+        calendar: {
+            sameDay: '[اليوم عند الساعة] LT',
+            nextDay: '[غدًا عند الساعة] LT',
+            nextWeek: 'dddd [عند الساعة] LT',
+            lastDay: '[أمس عند الساعة] LT',
+            lastWeek: 'dddd [عند الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'بعد %s',
+            past: 'منذ %s',
+            s: pluralize('s'),
+            ss: pluralize('s'),
+            m: pluralize('m'),
+            mm: pluralize('m'),
+            h: pluralize('h'),
+            hh: pluralize('h'),
+            d: pluralize('d'),
+            dd: pluralize('d'),
+            M: pluralize('M'),
+            MM: pluralize('M'),
+            y: pluralize('y'),
+            yy: pluralize('y'),
+        },
+        postformat: function (string) {
+            return string.replace(/,/g, '،');
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('ar-kw', {
+        months: 'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split(
+            '_'
+        ),
+        monthsShort:
+            'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split(
+                '_'
+            ),
+        weekdays: 'الأحد_الإتنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'احد_اتنين_ثلاثاء_اربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[اليوم على الساعة] LT',
+            nextDay: '[غدا على الساعة] LT',
+            nextWeek: 'dddd [على الساعة] LT',
+            lastDay: '[أمس على الساعة] LT',
+            lastWeek: 'dddd [على الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'في %s',
+            past: 'منذ %s',
+            s: 'ثوان',
+            ss: '%d ثانية',
+            m: 'دقيقة',
+            mm: '%d دقائق',
+            h: 'ساعة',
+            hh: '%d ساعات',
+            d: 'يوم',
+            dd: '%d أيام',
+            M: 'شهر',
+            MM: '%d أشهر',
+            y: 'سنة',
+            yy: '%d سنوات',
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap = {
+            1: '1',
+            2: '2',
+            3: '3',
+            4: '4',
+            5: '5',
+            6: '6',
+            7: '7',
+            8: '8',
+            9: '9',
+            0: '0',
+        },
+        pluralForm$1 = function (n) {
+            return n === 0
+                ? 0
+                : n === 1
+                  ? 1
+                  : n === 2
+                    ? 2
+                    : n % 100 >= 3 && n % 100 <= 10
+                      ? 3
+                      : n % 100 >= 11
+                        ? 4
+                        : 5;
+        },
+        plurals$1 = {
+            s: [
+                'أقل من ثانية',
+                'ثانية واحدة',
+                ['ثانيتان', 'ثانيتين'],
+                '%d ثوان',
+                '%d ثانية',
+                '%d ثانية',
+            ],
+            m: [
+                'أقل من دقيقة',
+                'دقيقة واحدة',
+                ['دقيقتان', 'دقيقتين'],
+                '%d دقائق',
+                '%d دقيقة',
+                '%d دقيقة',
+            ],
+            h: [
+                'أقل من ساعة',
+                'ساعة واحدة',
+                ['ساعتان', 'ساعتين'],
+                '%d ساعات',
+                '%d ساعة',
+                '%d ساعة',
+            ],
+            d: [
+                'أقل من يوم',
+                'يوم واحد',
+                ['يومان', 'يومين'],
+                '%d أيام',
+                '%d يومًا',
+                '%d يوم',
+            ],
+            M: [
+                'أقل من شهر',
+                'شهر واحد',
+                ['شهران', 'شهرين'],
+                '%d أشهر',
+                '%d شهرا',
+                '%d شهر',
+            ],
+            y: [
+                'أقل من عام',
+                'عام واحد',
+                ['عامان', 'عامين'],
+                '%d أعوام',
+                '%d عامًا',
+                '%d عام',
+            ],
+        },
+        pluralize$1 = function (u) {
+            return function (number, withoutSuffix, string, isFuture) {
+                var f = pluralForm$1(number),
+                    str = plurals$1[u][pluralForm$1(number)];
+                if (f === 2) {
+                    str = str[withoutSuffix ? 0 : 1];
+                }
+                return str.replace(/%d/i, number);
+            };
+        },
+        months$1 = [
+            'يناير',
+            'فبراير',
+            'مارس',
+            'أبريل',
+            'مايو',
+            'يونيو',
+            'يوليو',
+            'أغسطس',
+            'سبتمبر',
+            'أكتوبر',
+            'نوفمبر',
+            'ديسمبر',
+        ];
+
+    moment.defineLocale('ar-ly', {
+        months: months$1,
+        monthsShort: months$1,
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'D/\u200FM/\u200FYYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ص|م/,
+        isPM: function (input) {
+            return 'م' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ص';
+            } else {
+                return 'م';
+            }
+        },
+        calendar: {
+            sameDay: '[اليوم عند الساعة] LT',
+            nextDay: '[غدًا عند الساعة] LT',
+            nextWeek: 'dddd [عند الساعة] LT',
+            lastDay: '[أمس عند الساعة] LT',
+            lastWeek: 'dddd [عند الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'بعد %s',
+            past: 'منذ %s',
+            s: pluralize$1('s'),
+            ss: pluralize$1('s'),
+            m: pluralize$1('m'),
+            mm: pluralize$1('m'),
+            h: pluralize$1('h'),
+            hh: pluralize$1('h'),
+            d: pluralize$1('d'),
+            dd: pluralize$1('d'),
+            M: pluralize$1('M'),
+            MM: pluralize$1('M'),
+            y: pluralize$1('y'),
+            yy: pluralize$1('y'),
+        },
+        preparse: function (string) {
+            return string.replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string
+                .replace(/\d/g, function (match) {
+                    return symbolMap[match];
+                })
+                .replace(/,/g, '،');
+        },
+        week: {
+            dow: 6, // Saturday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('ar-ma', {
+        months: 'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split(
+            '_'
+        ),
+        monthsShort:
+            'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split(
+                '_'
+            ),
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'احد_اثنين_ثلاثاء_اربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[اليوم على الساعة] LT',
+            nextDay: '[غدا على الساعة] LT',
+            nextWeek: 'dddd [على الساعة] LT',
+            lastDay: '[أمس على الساعة] LT',
+            lastWeek: 'dddd [على الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'في %s',
+            past: 'منذ %s',
+            s: 'ثوان',
+            ss: '%d ثانية',
+            m: 'دقيقة',
+            mm: '%d دقائق',
+            h: 'ساعة',
+            hh: '%d ساعات',
+            d: 'يوم',
+            dd: '%d أيام',
+            M: 'شهر',
+            MM: '%d أشهر',
+            y: 'سنة',
+            yy: '%d سنوات',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$1 = {
+            1: '١',
+            2: '٢',
+            3: '٣',
+            4: '٤',
+            5: '٥',
+            6: '٦',
+            7: '٧',
+            8: '٨',
+            9: '٩',
+            0: '٠',
+        },
+        numberMap = {
+            '١': '1',
+            '٢': '2',
+            '٣': '3',
+            '٤': '4',
+            '٥': '5',
+            '٦': '6',
+            '٧': '7',
+            '٨': '8',
+            '٩': '9',
+            '٠': '0',
+        };
+
+    moment.defineLocale('ar-ps', {
+        months: 'كانون الثاني_شباط_آذار_نيسان_أيّار_حزيران_تمّوز_آب_أيلول_تشري الأوّل_تشرين الثاني_كانون الأوّل'.split(
+            '_'
+        ),
+        monthsShort:
+            'ك٢_شباط_آذار_نيسان_أيّار_حزيران_تمّوز_آب_أيلول_ت١_ت٢_ك١'.split('_'),
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ص|م/,
+        isPM: function (input) {
+            return 'م' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ص';
+            } else {
+                return 'م';
+            }
+        },
+        calendar: {
+            sameDay: '[اليوم على الساعة] LT',
+            nextDay: '[غدا على الساعة] LT',
+            nextWeek: 'dddd [على الساعة] LT',
+            lastDay: '[أمس على الساعة] LT',
+            lastWeek: 'dddd [على الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'في %s',
+            past: 'منذ %s',
+            s: 'ثوان',
+            ss: '%d ثانية',
+            m: 'دقيقة',
+            mm: '%d دقائق',
+            h: 'ساعة',
+            hh: '%d ساعات',
+            d: 'يوم',
+            dd: '%d أيام',
+            M: 'شهر',
+            MM: '%d أشهر',
+            y: 'سنة',
+            yy: '%d سنوات',
+        },
+        preparse: function (string) {
+            return string
+                .replace(/[٣٤٥٦٧٨٩٠]/g, function (match) {
+                    return numberMap[match];
+                })
+                .split('') // reversed since negative lookbehind not supported everywhere
+                .reverse()
+                .join('')
+                .replace(/[١٢](?![\u062a\u0643])/g, function (match) {
+                    return numberMap[match];
+                })
+                .split('')
+                .reverse()
+                .join('')
+                .replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string
+                .replace(/\d/g, function (match) {
+                    return symbolMap$1[match];
+                })
+                .replace(/,/g, '،');
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$2 = {
+            1: '١',
+            2: '٢',
+            3: '٣',
+            4: '٤',
+            5: '٥',
+            6: '٦',
+            7: '٧',
+            8: '٨',
+            9: '٩',
+            0: '٠',
+        },
+        numberMap$1 = {
+            '١': '1',
+            '٢': '2',
+            '٣': '3',
+            '٤': '4',
+            '٥': '5',
+            '٦': '6',
+            '٧': '7',
+            '٨': '8',
+            '٩': '9',
+            '٠': '0',
+        };
+
+    moment.defineLocale('ar-sa', {
+        months: 'يناير_فبراير_مارس_أبريل_مايو_يونيو_يوليو_أغسطس_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split(
+            '_'
+        ),
+        monthsShort:
+            'يناير_فبراير_مارس_أبريل_مايو_يونيو_يوليو_أغسطس_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split(
+                '_'
+            ),
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ص|م/,
+        isPM: function (input) {
+            return 'م' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ص';
+            } else {
+                return 'م';
+            }
+        },
+        calendar: {
+            sameDay: '[اليوم على الساعة] LT',
+            nextDay: '[غدا على الساعة] LT',
+            nextWeek: 'dddd [على الساعة] LT',
+            lastDay: '[أمس على الساعة] LT',
+            lastWeek: 'dddd [على الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'في %s',
+            past: 'منذ %s',
+            s: 'ثوان',
+            ss: '%d ثانية',
+            m: 'دقيقة',
+            mm: '%d دقائق',
+            h: 'ساعة',
+            hh: '%d ساعات',
+            d: 'يوم',
+            dd: '%d أيام',
+            M: 'شهر',
+            MM: '%d أشهر',
+            y: 'سنة',
+            yy: '%d سنوات',
+        },
+        preparse: function (string) {
+            return string
+                .replace(/[١٢٣٤٥٦٧٨٩٠]/g, function (match) {
+                    return numberMap$1[match];
+                })
+                .replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string
+                .replace(/\d/g, function (match) {
+                    return symbolMap$2[match];
+                })
+                .replace(/,/g, '،');
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('ar-tn', {
+        months: 'جانفي_فيفري_مارس_أفريل_ماي_جوان_جويلية_أوت_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split(
+            '_'
+        ),
+        monthsShort:
+            'جانفي_فيفري_مارس_أفريل_ماي_جوان_جويلية_أوت_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split(
+                '_'
+            ),
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[اليوم على الساعة] LT',
+            nextDay: '[غدا على الساعة] LT',
+            nextWeek: 'dddd [على الساعة] LT',
+            lastDay: '[أمس على الساعة] LT',
+            lastWeek: 'dddd [على الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'في %s',
+            past: 'منذ %s',
+            s: 'ثوان',
+            ss: '%d ثانية',
+            m: 'دقيقة',
+            mm: '%d دقائق',
+            h: 'ساعة',
+            hh: '%d ساعات',
+            d: 'يوم',
+            dd: '%d أيام',
+            M: 'شهر',
+            MM: '%d أشهر',
+            y: 'سنة',
+            yy: '%d سنوات',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$3 = {
+            1: '١',
+            2: '٢',
+            3: '٣',
+            4: '٤',
+            5: '٥',
+            6: '٦',
+            7: '٧',
+            8: '٨',
+            9: '٩',
+            0: '٠',
+        },
+        numberMap$2 = {
+            '١': '1',
+            '٢': '2',
+            '٣': '3',
+            '٤': '4',
+            '٥': '5',
+            '٦': '6',
+            '٧': '7',
+            '٨': '8',
+            '٩': '9',
+            '٠': '0',
+        },
+        pluralForm$2 = function (n) {
+            return n === 0
+                ? 0
+                : n === 1
+                  ? 1
+                  : n === 2
+                    ? 2
+                    : n % 100 >= 3 && n % 100 <= 10
+                      ? 3
+                      : n % 100 >= 11
+                        ? 4
+                        : 5;
+        },
+        plurals$2 = {
+            s: [
+                'أقل من ثانية',
+                'ثانية واحدة',
+                ['ثانيتان', 'ثانيتين'],
+                '%d ثوان',
+                '%d ثانية',
+                '%d ثانية',
+            ],
+            m: [
+                'أقل من دقيقة',
+                'دقيقة واحدة',
+                ['دقيقتان', 'دقيقتين'],
+                '%d دقائق',
+                '%d دقيقة',
+                '%d دقيقة',
+            ],
+            h: [
+                'أقل من ساعة',
+                'ساعة واحدة',
+                ['ساعتان', 'ساعتين'],
+                '%d ساعات',
+                '%d ساعة',
+                '%d ساعة',
+            ],
+            d: [
+                'أقل من يوم',
+                'يوم واحد',
+                ['يومان', 'يومين'],
+                '%d أيام',
+                '%d يومًا',
+                '%d يوم',
+            ],
+            M: [
+                'أقل من شهر',
+                'شهر واحد',
+                ['شهران', 'شهرين'],
+                '%d أشهر',
+                '%d شهرا',
+                '%d شهر',
+            ],
+            y: [
+                'أقل من عام',
+                'عام واحد',
+                ['عامان', 'عامين'],
+                '%d أعوام',
+                '%d عامًا',
+                '%d عام',
+            ],
+        },
+        pluralize$2 = function (u) {
+            return function (number, withoutSuffix, string, isFuture) {
+                var f = pluralForm$2(number),
+                    str = plurals$2[u][pluralForm$2(number)];
+                if (f === 2) {
+                    str = str[withoutSuffix ? 0 : 1];
+                }
+                return str.replace(/%d/i, number);
+            };
+        },
+        months$2 = [
+            'يناير',
+            'فبراير',
+            'مارس',
+            'أبريل',
+            'مايو',
+            'يونيو',
+            'يوليو',
+            'أغسطس',
+            'سبتمبر',
+            'أكتوبر',
+            'نوفمبر',
+            'ديسمبر',
+        ];
+
+    moment.defineLocale('ar', {
+        months: months$2,
+        monthsShort: months$2,
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'D/\u200FM/\u200FYYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ص|م/,
+        isPM: function (input) {
+            return 'م' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ص';
+            } else {
+                return 'م';
+            }
+        },
+        calendar: {
+            sameDay: '[اليوم عند الساعة] LT',
+            nextDay: '[غدًا عند الساعة] LT',
+            nextWeek: 'dddd [عند الساعة] LT',
+            lastDay: '[أمس عند الساعة] LT',
+            lastWeek: 'dddd [عند الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'بعد %s',
+            past: 'منذ %s',
+            s: pluralize$2('s'),
+            ss: pluralize$2('s'),
+            m: pluralize$2('m'),
+            mm: pluralize$2('m'),
+            h: pluralize$2('h'),
+            hh: pluralize$2('h'),
+            d: pluralize$2('d'),
+            dd: pluralize$2('d'),
+            M: pluralize$2('M'),
+            MM: pluralize$2('M'),
+            y: pluralize$2('y'),
+            yy: pluralize$2('y'),
+        },
+        preparse: function (string) {
+            return string
+                .replace(/[١٢٣٤٥٦٧٨٩٠]/g, function (match) {
+                    return numberMap$2[match];
+                })
+                .replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string
+                .replace(/\d/g, function (match) {
+                    return symbolMap$3[match];
+                })
+                .replace(/,/g, '،');
+        },
+        week: {
+            dow: 6, // Saturday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var suffixes = {
+        1: '-inci',
+        5: '-inci',
+        8: '-inci',
+        70: '-inci',
+        80: '-inci',
+        2: '-nci',
+        7: '-nci',
+        20: '-nci',
+        50: '-nci',
+        3: '-üncü',
+        4: '-üncü',
+        100: '-üncü',
+        6: '-ncı',
+        9: '-uncu',
+        10: '-uncu',
+        30: '-uncu',
+        60: '-ıncı',
+        90: '-ıncı',
+    };
+
+    moment.defineLocale('az', {
+        months: 'yanvar_fevral_mart_aprel_may_iyun_iyul_avqust_sentyabr_oktyabr_noyabr_dekabr'.split(
+            '_'
+        ),
+        monthsShort: 'yan_fev_mar_apr_may_iyn_iyl_avq_sen_okt_noy_dek'.split('_'),
+        weekdays:
+            'Bazar_Bazar ertəsi_Çərşənbə axşamı_Çərşənbə_Cümə axşamı_Cümə_Şənbə'.split(
+                '_'
+            ),
+        weekdaysShort: 'Baz_BzE_ÇAx_Çər_CAx_Cüm_Şən'.split('_'),
+        weekdaysMin: 'Bz_BE_ÇA_Çə_CA_Cü_Şə'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[bugün saat] LT',
+            nextDay: '[sabah saat] LT',
+            nextWeek: '[gələn həftə] dddd [saat] LT',
+            lastDay: '[dünən] LT',
+            lastWeek: '[keçən həftə] dddd [saat] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s sonra',
+            past: '%s əvvəl',
+            s: 'bir neçə saniyə',
+            ss: '%d saniyə',
+            m: 'bir dəqiqə',
+            mm: '%d dəqiqə',
+            h: 'bir saat',
+            hh: '%d saat',
+            d: 'bir gün',
+            dd: '%d gün',
+            M: 'bir ay',
+            MM: '%d ay',
+            y: 'bir il',
+            yy: '%d il',
+        },
+        meridiemParse: /gecə|səhər|gündüz|axşam/,
+        isPM: function (input) {
+            return /^(gündüz|axşam)$/.test(input);
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'gecə';
+            } else if (hour < 12) {
+                return 'səhər';
+            } else if (hour < 17) {
+                return 'gündüz';
+            } else {
+                return 'axşam';
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(ıncı|inci|nci|üncü|ncı|uncu)/,
+        ordinal: function (number) {
+            if (number === 0) {
+                // special case for zero
+                return number + '-ıncı';
+            }
+            var a = number % 10,
+                b = (number % 100) - a,
+                c = number >= 100 ? 100 : null;
+            return number + (suffixes[a] || suffixes[b] || suffixes[c]);
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function plural(word, num) {
+        var forms = word.split('_');
+        return num % 10 === 1 && num % 100 !== 11
+            ? forms[0]
+            : num % 10 >= 2 && num % 10 <= 4 && (num % 100 < 10 || num % 100 >= 20)
+              ? forms[1]
+              : forms[2];
+    }
+    function relativeTimeWithPlural(number, withoutSuffix, key) {
+        var format = {
+            ss: withoutSuffix ? 'секунда_секунды_секунд' : 'секунду_секунды_секунд',
+            mm: withoutSuffix ? 'хвіліна_хвіліны_хвілін' : 'хвіліну_хвіліны_хвілін',
+            hh: withoutSuffix ? 'гадзіна_гадзіны_гадзін' : 'гадзіну_гадзіны_гадзін',
+            dd: 'дзень_дні_дзён',
+            MM: 'месяц_месяцы_месяцаў',
+            yy: 'год_гады_гадоў',
+        };
+        if (key === 'm') {
+            return withoutSuffix ? 'хвіліна' : 'хвіліну';
+        } else if (key === 'h') {
+            return withoutSuffix ? 'гадзіна' : 'гадзіну';
+        } else {
+            return number + ' ' + plural(format[key], +number);
+        }
+    }
+
+    moment.defineLocale('be', {
+        months: {
+            format: 'студзеня_лютага_сакавіка_красавіка_траўня_чэрвеня_ліпеня_жніўня_верасня_кастрычніка_лістапада_снежня'.split(
+                '_'
+            ),
+            standalone:
+                'студзень_люты_сакавік_красавік_травень_чэрвень_ліпень_жнівень_верасень_кастрычнік_лістапад_снежань'.split(
+                    '_'
+                ),
+        },
+        monthsShort:
+            'студ_лют_сак_крас_трав_чэрв_ліп_жнів_вер_каст_ліст_снеж'.split('_'),
+        weekdays: {
+            format: 'нядзелю_панядзелак_аўторак_сераду_чацвер_пятніцу_суботу'.split(
+                '_'
+            ),
+            standalone:
+                'нядзеля_панядзелак_аўторак_серада_чацвер_пятніца_субота'.split(
+                    '_'
+                ),
+            isFormat: /\[ ?[Ууў] ?(?:мінулую|наступную)? ?\] ?dddd/,
+        },
+        weekdaysShort: 'нд_пн_ат_ср_чц_пт_сб'.split('_'),
+        weekdaysMin: 'нд_пн_ат_ср_чц_пт_сб'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY г.',
+            LLL: 'D MMMM YYYY г., HH:mm',
+            LLLL: 'dddd, D MMMM YYYY г., HH:mm',
+        },
+        calendar: {
+            sameDay: '[Сёння ў] LT',
+            nextDay: '[Заўтра ў] LT',
+            lastDay: '[Учора ў] LT',
+            nextWeek: function () {
+                return '[У] dddd [ў] LT';
+            },
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                    case 3:
+                    case 5:
+                    case 6:
+                        return '[У мінулую] dddd [ў] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                        return '[У мінулы] dddd [ў] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'праз %s',
+            past: '%s таму',
+            s: 'некалькі секунд',
+            m: relativeTimeWithPlural,
+            mm: relativeTimeWithPlural,
+            h: relativeTimeWithPlural,
+            hh: relativeTimeWithPlural,
+            d: 'дзень',
+            dd: relativeTimeWithPlural,
+            M: 'месяц',
+            MM: relativeTimeWithPlural,
+            y: 'год',
+            yy: relativeTimeWithPlural,
+        },
+        meridiemParse: /ночы|раніцы|дня|вечара/,
+        isPM: function (input) {
+            return /^(дня|вечара)$/.test(input);
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'ночы';
+            } else if (hour < 12) {
+                return 'раніцы';
+            } else if (hour < 17) {
+                return 'дня';
+            } else {
+                return 'вечара';
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(і|ы|га)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'M':
+                case 'd':
+                case 'DDD':
+                case 'w':
+                case 'W':
+                    return (number % 10 === 2 || number % 10 === 3) &&
+                        number % 100 !== 12 &&
+                        number % 100 !== 13
+                        ? number + '-і'
+                        : number + '-ы';
+                case 'D':
+                    return number + '-га';
+                default:
+                    return number;
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('bg', {
+        months: 'януари_февруари_март_април_май_юни_юли_август_септември_октомври_ноември_декември'.split(
+            '_'
+        ),
+        monthsShort: 'яну_фев_мар_апр_май_юни_юли_авг_сеп_окт_ное_дек'.split('_'),
+        weekdays: 'неделя_понеделник_вторник_сряда_четвъртък_петък_събота'.split(
+            '_'
+        ),
+        weekdaysShort: 'нед_пон_вто_сря_чет_пет_съб'.split('_'),
+        weekdaysMin: 'нд_пн_вт_ср_чт_пт_сб'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'D.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY H:mm',
+            LLLL: 'dddd, D MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[Днес в] LT',
+            nextDay: '[Утре в] LT',
+            nextWeek: 'dddd [в] LT',
+            lastDay: '[Вчера в] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                    case 3:
+                    case 6:
+                        return '[Миналата] dddd [в] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[Миналия] dddd [в] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'след %s',
+            past: 'преди %s',
+            s: 'няколко секунди',
+            ss: '%d секунди',
+            m: 'минута',
+            mm: '%d минути',
+            h: 'час',
+            hh: '%d часа',
+            d: 'ден',
+            dd: '%d дена',
+            w: 'седмица',
+            ww: '%d седмици',
+            M: 'месец',
+            MM: '%d месеца',
+            y: 'година',
+            yy: '%d години',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(ев|ен|ти|ви|ри|ми)/,
+        ordinal: function (number) {
+            var lastDigit = number % 10,
+                last2Digits = number % 100;
+            if (number === 0) {
+                return number + '-ев';
+            } else if (last2Digits === 0) {
+                return number + '-ен';
+            } else if (last2Digits > 10 && last2Digits < 20) {
+                return number + '-ти';
+            } else if (lastDigit === 1) {
+                return number + '-ви';
+            } else if (lastDigit === 2) {
+                return number + '-ри';
+            } else if (lastDigit === 7 || lastDigit === 8) {
+                return number + '-ми';
+            } else {
+                return number + '-ти';
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('bm', {
+        months: 'Zanwuyekalo_Fewuruyekalo_Marisikalo_Awirilikalo_Mɛkalo_Zuwɛnkalo_Zuluyekalo_Utikalo_Sɛtanburukalo_ɔkutɔburukalo_Nowanburukalo_Desanburukalo'.split(
+            '_'
+        ),
+        monthsShort: 'Zan_Few_Mar_Awi_Mɛ_Zuw_Zul_Uti_Sɛt_ɔku_Now_Des'.split('_'),
+        weekdays: 'Kari_Ntɛnɛn_Tarata_Araba_Alamisa_Juma_Sibiri'.split('_'),
+        weekdaysShort: 'Kar_Ntɛ_Tar_Ara_Ala_Jum_Sib'.split('_'),
+        weekdaysMin: 'Ka_Nt_Ta_Ar_Al_Ju_Si'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'MMMM [tile] D [san] YYYY',
+            LLL: 'MMMM [tile] D [san] YYYY [lɛrɛ] HH:mm',
+            LLLL: 'dddd MMMM [tile] D [san] YYYY [lɛrɛ] HH:mm',
+        },
+        calendar: {
+            sameDay: '[Bi lɛrɛ] LT',
+            nextDay: '[Sini lɛrɛ] LT',
+            nextWeek: 'dddd [don lɛrɛ] LT',
+            lastDay: '[Kunu lɛrɛ] LT',
+            lastWeek: 'dddd [tɛmɛnen lɛrɛ] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s kɔnɔ',
+            past: 'a bɛ %s bɔ',
+            s: 'sanga dama dama',
+            ss: 'sekondi %d',
+            m: 'miniti kelen',
+            mm: 'miniti %d',
+            h: 'lɛrɛ kelen',
+            hh: 'lɛrɛ %d',
+            d: 'tile kelen',
+            dd: 'tile %d',
+            M: 'kalo kelen',
+            MM: 'kalo %d',
+            y: 'san kelen',
+            yy: 'san %d',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$4 = {
+            1: '১',
+            2: '২',
+            3: '৩',
+            4: '৪',
+            5: '৫',
+            6: '৬',
+            7: '৭',
+            8: '৮',
+            9: '৯',
+            0: '০',
+        },
+        numberMap$3 = {
+            '১': '1',
+            '২': '2',
+            '৩': '3',
+            '৪': '4',
+            '৫': '5',
+            '৬': '6',
+            '৭': '7',
+            '৮': '8',
+            '৯': '9',
+            '০': '0',
+        };
+
+    moment.defineLocale('bn-bd', {
+        months: 'জানুয়ারি_ফেব্রুয়ারি_মার্চ_এপ্রিল_মে_জুন_জুলাই_আগস্ট_সেপ্টেম্বর_অক্টোবর_নভেম্বর_ডিসেম্বর'.split(
+            '_'
+        ),
+        monthsShort:
+            'জানু_ফেব্রু_মার্চ_এপ্রিল_মে_জুন_জুলাই_আগস্ট_সেপ্ট_অক্টো_নভে_ডিসে'.split(
+                '_'
+            ),
+        weekdays: 'রবিবার_সোমবার_মঙ্গলবার_বুধবার_বৃহস্পতিবার_শুক্রবার_শনিবার'.split(
+            '_'
+        ),
+        weekdaysShort: 'রবি_সোম_মঙ্গল_বুধ_বৃহস্পতি_শুক্র_শনি'.split('_'),
+        weekdaysMin: 'রবি_সোম_মঙ্গল_বুধ_বৃহ_শুক্র_শনি'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm সময়',
+            LTS: 'A h:mm:ss সময়',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm সময়',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm সময়',
+        },
+        calendar: {
+            sameDay: '[আজ] LT',
+            nextDay: '[আগামীকাল] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[গতকাল] LT',
+            lastWeek: '[গত] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s পরে',
+            past: '%s আগে',
+            s: 'কয়েক সেকেন্ড',
+            ss: '%d সেকেন্ড',
+            m: 'এক মিনিট',
+            mm: '%d মিনিট',
+            h: 'এক ঘন্টা',
+            hh: '%d ঘন্টা',
+            d: 'এক দিন',
+            dd: '%d দিন',
+            M: 'এক মাস',
+            MM: '%d মাস',
+            y: 'এক বছর',
+            yy: '%d বছর',
+        },
+        preparse: function (string) {
+            return string.replace(/[১২৩৪৫৬৭৮৯০]/g, function (match) {
+                return numberMap$3[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap$4[match];
+            });
+        },
+
+        meridiemParse: /রাত|ভোর|সকাল|দুপুর|বিকাল|সন্ধ্যা|রাত/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'রাত') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'ভোর') {
+                return hour;
+            } else if (meridiem === 'সকাল') {
+                return hour;
+            } else if (meridiem === 'দুপুর') {
+                return hour >= 3 ? hour : hour + 12;
+            } else if (meridiem === 'বিকাল') {
+                return hour + 12;
+            } else if (meridiem === 'সন্ধ্যা') {
+                return hour + 12;
+            }
+        },
+
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'রাত';
+            } else if (hour < 6) {
+                return 'ভোর';
+            } else if (hour < 12) {
+                return 'সকাল';
+            } else if (hour < 15) {
+                return 'দুপুর';
+            } else if (hour < 18) {
+                return 'বিকাল';
+            } else if (hour < 20) {
+                return 'সন্ধ্যা';
+            } else {
+                return 'রাত';
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$5 = {
+            1: '১',
+            2: '২',
+            3: '৩',
+            4: '৪',
+            5: '৫',
+            6: '৬',
+            7: '৭',
+            8: '৮',
+            9: '৯',
+            0: '০',
+        },
+        numberMap$4 = {
+            '১': '1',
+            '২': '2',
+            '৩': '3',
+            '৪': '4',
+            '৫': '5',
+            '৬': '6',
+            '৭': '7',
+            '৮': '8',
+            '৯': '9',
+            '০': '0',
+        };
+
+    moment.defineLocale('bn', {
+        months: 'জানুয়ারি_ফেব্রুয়ারি_মার্চ_এপ্রিল_মে_জুন_জুলাই_আগস্ট_সেপ্টেম্বর_অক্টোবর_নভেম্বর_ডিসেম্বর'.split(
+            '_'
+        ),
+        monthsShort:
+            'জানু_ফেব্রু_মার্চ_এপ্রিল_মে_জুন_জুলাই_আগস্ট_সেপ্ট_অক্টো_নভে_ডিসে'.split(
+                '_'
+            ),
+        weekdays: 'রবিবার_সোমবার_মঙ্গলবার_বুধবার_বৃহস্পতিবার_শুক্রবার_শনিবার'.split(
+            '_'
+        ),
+        weekdaysShort: 'রবি_সোম_মঙ্গল_বুধ_বৃহস্পতি_শুক্র_শনি'.split('_'),
+        weekdaysMin: 'রবি_সোম_মঙ্গল_বুধ_বৃহ_শুক্র_শনি'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm সময়',
+            LTS: 'A h:mm:ss সময়',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm সময়',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm সময়',
+        },
+        calendar: {
+            sameDay: '[আজ] LT',
+            nextDay: '[আগামীকাল] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[গতকাল] LT',
+            lastWeek: '[গত] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s পরে',
+            past: '%s আগে',
+            s: 'কয়েক সেকেন্ড',
+            ss: '%d সেকেন্ড',
+            m: 'এক মিনিট',
+            mm: '%d মিনিট',
+            h: 'এক ঘন্টা',
+            hh: '%d ঘন্টা',
+            d: 'এক দিন',
+            dd: '%d দিন',
+            M: 'এক মাস',
+            MM: '%d মাস',
+            y: 'এক বছর',
+            yy: '%d বছর',
+        },
+        preparse: function (string) {
+            return string.replace(/[১২৩৪৫৬৭৮৯০]/g, function (match) {
+                return numberMap$4[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap$5[match];
+            });
+        },
+        meridiemParse: /রাত|সকাল|দুপুর|বিকাল|রাত/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (
+                (meridiem === 'রাত' && hour >= 4) ||
+                (meridiem === 'দুপুর' && hour < 5) ||
+                meridiem === 'বিকাল'
+            ) {
+                return hour + 12;
+            } else {
+                return hour;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'রাত';
+            } else if (hour < 10) {
+                return 'সকাল';
+            } else if (hour < 17) {
+                return 'দুপুর';
+            } else if (hour < 20) {
+                return 'বিকাল';
+            } else {
+                return 'রাত';
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$6 = {
+            1: '༡',
+            2: '༢',
+            3: '༣',
+            4: '༤',
+            5: '༥',
+            6: '༦',
+            7: '༧',
+            8: '༨',
+            9: '༩',
+            0: '༠',
+        },
+        numberMap$5 = {
+            '༡': '1',
+            '༢': '2',
+            '༣': '3',
+            '༤': '4',
+            '༥': '5',
+            '༦': '6',
+            '༧': '7',
+            '༨': '8',
+            '༩': '9',
+            '༠': '0',
+        };
+
+    moment.defineLocale('bo', {
+        months: 'ཟླ་བ་དང་པོ_ཟླ་བ་གཉིས་པ_ཟླ་བ་གསུམ་པ_ཟླ་བ་བཞི་པ_ཟླ་བ་ལྔ་པ_ཟླ་བ་དྲུག་པ_ཟླ་བ་བདུན་པ_ཟླ་བ་བརྒྱད་པ_ཟླ་བ་དགུ་པ_ཟླ་བ་བཅུ་པ_ཟླ་བ་བཅུ་གཅིག་པ_ཟླ་བ་བཅུ་གཉིས་པ'.split(
+            '_'
+        ),
+        monthsShort:
+            'ཟླ་1_ཟླ་2_ཟླ་3_ཟླ་4_ཟླ་5_ཟླ་6_ཟླ་7_ཟླ་8_ཟླ་9_ཟླ་10_ཟླ་11_ཟླ་12'.split(
+                '_'
+            ),
+        monthsShortRegex: /^(ཟླ་\d{1,2})/,
+        monthsParseExact: true,
+        weekdays:
+            'གཟའ་ཉི་མ་_གཟའ་ཟླ་བ་_གཟའ་མིག་དམར་_གཟའ་ལྷག་པ་_གཟའ་ཕུར་བུ_གཟའ་པ་སངས་_གཟའ་སྤེན་པ་'.split(
+                '_'
+            ),
+        weekdaysShort: 'ཉི་མ་_ཟླ་བ་_མིག་དམར་_ལྷག་པ་_ཕུར་བུ_པ་སངས་_སྤེན་པ་'.split(
+            '_'
+        ),
+        weekdaysMin: 'ཉི_ཟླ_མིག_ལྷག_ཕུར_སངས_སྤེན'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm',
+            LTS: 'A h:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm',
+        },
+        calendar: {
+            sameDay: '[དི་རིང] LT',
+            nextDay: '[སང་ཉིན] LT',
+            nextWeek: '[བདུན་ཕྲག་རྗེས་མ], LT',
+            lastDay: '[ཁ་སང] LT',
+            lastWeek: '[བདུན་ཕྲག་མཐའ་མ] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s ལ་',
+            past: '%s སྔན་ལ',
+            s: 'ལམ་སང',
+            ss: '%d སྐར་ཆ།',
+            m: 'སྐར་མ་གཅིག',
+            mm: '%d སྐར་མ',
+            h: 'ཆུ་ཚོད་གཅིག',
+            hh: '%d ཆུ་ཚོད',
+            d: 'ཉིན་གཅིག',
+            dd: '%d ཉིན་',
+            M: 'ཟླ་བ་གཅིག',
+            MM: '%d ཟླ་བ',
+            y: 'ལོ་གཅིག',
+            yy: '%d ལོ',
+        },
+        preparse: function (string) {
+            return string.replace(/[༡༢༣༤༥༦༧༨༩༠]/g, function (match) {
+                return numberMap$5[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap$6[match];
+            });
+        },
+        meridiemParse: /མཚན་མོ|ཞོགས་ཀས|ཉིན་གུང|དགོང་དག|མཚན་མོ/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (
+                (meridiem === 'མཚན་མོ' && hour >= 4) ||
+                (meridiem === 'ཉིན་གུང' && hour < 5) ||
+                meridiem === 'དགོང་དག'
+            ) {
+                return hour + 12;
+            } else {
+                return hour;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'མཚན་མོ';
+            } else if (hour < 10) {
+                return 'ཞོགས་ཀས';
+            } else if (hour < 17) {
+                return 'ཉིན་གུང';
+            } else if (hour < 20) {
+                return 'དགོང་དག';
+            } else {
+                return 'མཚན་མོ';
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function relativeTimeWithMutation(number, withoutSuffix, key) {
+        var format = {
+            mm: 'munutenn',
+            MM: 'miz',
+            dd: 'devezh',
+        };
+        return number + ' ' + mutation(format[key], number);
+    }
+    function specialMutationForYears(number) {
+        switch (lastNumber(number)) {
+            case 1:
+            case 3:
+            case 4:
+            case 5:
+            case 9:
+                return number + ' bloaz';
+            default:
+                return number + ' vloaz';
+        }
+    }
+    function lastNumber(number) {
+        if (number > 9) {
+            return lastNumber(number % 10);
+        }
+        return number;
+    }
+    function mutation(text, number) {
+        if (number === 2) {
+            return softMutation(text);
+        }
+        return text;
+    }
+    function softMutation(text) {
+        var mutationTable = {
+            m: 'v',
+            b: 'v',
+            d: 'z',
+        };
+        if (mutationTable[text.charAt(0)] === undefined) {
+            return text;
+        }
+        return mutationTable[text.charAt(0)] + text.substring(1);
+    }
+
+    var monthsParse = [
+            /^gen/i,
+            /^c[ʼ\']hwe/i,
+            /^meu/i,
+            /^ebr/i,
+            /^mae/i,
+            /^(mez|eve)/i,
+            /^gou/i,
+            /^eos/i,
+            /^gwe/i,
+            /^her/i,
+            /^du/i,
+            /^ker/i,
+        ],
+        monthsRegex =
+            /^(genver|c[ʼ\']hwevrer|meurzh|ebrel|mae|mezheven|gouere|eost|gwengolo|here|du|kerzu|gen|c[ʼ\']hwe|meu|ebr|mae|eve|gou|eos|gwe|her|du|ker)/i,
+        monthsStrictRegex =
+            /^(genver|c[ʼ\']hwevrer|meurzh|ebrel|mae|mezheven|gouere|eost|gwengolo|here|du|kerzu)/i,
+        monthsShortStrictRegex =
+            /^(gen|c[ʼ\']hwe|meu|ebr|mae|eve|gou|eos|gwe|her|du|ker)/i,
+        fullWeekdaysParse = [
+            /^sul/i,
+            /^lun/i,
+            /^meurzh/i,
+            /^merc[ʼ\']her/i,
+            /^yaou/i,
+            /^gwener/i,
+            /^sadorn/i,
+        ],
+        shortWeekdaysParse = [
+            /^Sul/i,
+            /^Lun/i,
+            /^Meu/i,
+            /^Mer/i,
+            /^Yao/i,
+            /^Gwe/i,
+            /^Sad/i,
+        ],
+        minWeekdaysParse = [
+            /^Su/i,
+            /^Lu/i,
+            /^Me([^r]|$)/i,
+            /^Mer/i,
+            /^Ya/i,
+            /^Gw/i,
+            /^Sa/i,
+        ];
+
+    moment.defineLocale('br', {
+        months: 'Genver_Cʼhwevrer_Meurzh_Ebrel_Mae_Mezheven_Gouere_Eost_Gwengolo_Here_Du_Kerzu'.split(
+            '_'
+        ),
+        monthsShort: 'Gen_Cʼhwe_Meu_Ebr_Mae_Eve_Gou_Eos_Gwe_Her_Du_Ker'.split('_'),
+        weekdays: 'Sul_Lun_Meurzh_Mercʼher_Yaou_Gwener_Sadorn'.split('_'),
+        weekdaysShort: 'Sul_Lun_Meu_Mer_Yao_Gwe_Sad'.split('_'),
+        weekdaysMin: 'Su_Lu_Me_Mer_Ya_Gw_Sa'.split('_'),
+        weekdaysParse: minWeekdaysParse,
+        fullWeekdaysParse: fullWeekdaysParse,
+        shortWeekdaysParse: shortWeekdaysParse,
+        minWeekdaysParse: minWeekdaysParse,
+
+        monthsRegex: monthsRegex,
+        monthsShortRegex: monthsRegex,
+        monthsStrictRegex: monthsStrictRegex,
+        monthsShortStrictRegex: monthsShortStrictRegex,
+        monthsParse: monthsParse,
+        longMonthsParse: monthsParse,
+        shortMonthsParse: monthsParse,
+
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D [a viz] MMMM YYYY',
+            LLL: 'D [a viz] MMMM YYYY HH:mm',
+            LLLL: 'dddd, D [a viz] MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Hiziv da] LT',
+            nextDay: '[Warcʼhoazh da] LT',
+            nextWeek: 'dddd [da] LT',
+            lastDay: '[Decʼh da] LT',
+            lastWeek: 'dddd [paset da] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'a-benn %s',
+            past: '%s ʼzo',
+            s: 'un nebeud segondennoù',
+            ss: '%d eilenn',
+            m: 'ur vunutenn',
+            mm: relativeTimeWithMutation,
+            h: 'un eur',
+            hh: '%d eur',
+            d: 'un devezh',
+            dd: relativeTimeWithMutation,
+            M: 'ur miz',
+            MM: relativeTimeWithMutation,
+            y: 'ur bloaz',
+            yy: specialMutationForYears,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(añ|vet)/,
+        ordinal: function (number) {
+            var output = number === 1 ? 'añ' : 'vet';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+        meridiemParse: /a.m.|g.m./, // goude merenn | a-raok merenn
+        isPM: function (token) {
+            return token === 'g.m.';
+        },
+        meridiem: function (hour, minute, isLower) {
+            return hour < 12 ? 'a.m.' : 'g.m.';
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function processRelativeTime(number, withoutSuffix, key, isFuture) {
+        switch (key) {
+            case 'm':
+                return withoutSuffix
+                    ? 'jedna minuta'
+                    : isFuture
+                      ? 'jednu minutu'
+                      : 'jedne minute';
+        }
+    }
+
+    function translate(number, withoutSuffix, key) {
+        var result = number + ' ';
+        switch (key) {
+            case 'ss':
+                if (number === 1) {
+                    result += 'sekunda';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'sekunde';
+                } else {
+                    result += 'sekundi';
+                }
+                return result;
+            case 'mm':
+                if (number === 1) {
+                    result += 'minuta';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'minute';
+                } else {
+                    result += 'minuta';
+                }
+                return result;
+            case 'h':
+                return withoutSuffix ? 'jedan sat' : 'jedan sat';
+            case 'hh':
+                if (number === 1) {
+                    result += 'sat';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'sata';
+                } else {
+                    result += 'sati';
+                }
+                return result;
+            case 'dd':
+                if (number === 1) {
+                    result += 'dan';
+                } else {
+                    result += 'dana';
+                }
+                return result;
+            case 'MM':
+                if (number === 1) {
+                    result += 'mjesec';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'mjeseca';
+                } else {
+                    result += 'mjeseci';
+                }
+                return result;
+            case 'yy':
+                if (number === 1) {
+                    result += 'godina';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'godine';
+                } else {
+                    result += 'godina';
+                }
+                return result;
+        }
+    }
+
+    moment.defineLocale('bs', {
+        months: 'januar_februar_mart_april_maj_juni_juli_august_septembar_oktobar_novembar_decembar'.split(
+            '_'
+        ),
+        monthsShort:
+            'jan._feb._mar._apr._maj._jun._jul._aug._sep._okt._nov._dec.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'nedjelja_ponedjeljak_utorak_srijeda_četvrtak_petak_subota'.split(
+            '_'
+        ),
+        weekdaysShort: 'ned._pon._uto._sri._čet._pet._sub.'.split('_'),
+        weekdaysMin: 'ne_po_ut_sr_če_pe_su'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY H:mm',
+            LLLL: 'dddd, D. MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[danas u] LT',
+            nextDay: '[sutra u] LT',
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[u] [nedjelju] [u] LT';
+                    case 3:
+                        return '[u] [srijedu] [u] LT';
+                    case 6:
+                        return '[u] [subotu] [u] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[u] dddd [u] LT';
+                }
+            },
+            lastDay: '[jučer u] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                    case 3:
+                        return '[prošlu] dddd [u] LT';
+                    case 6:
+                        return '[prošle] [subote] [u] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[prošli] dddd [u] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'za %s',
+            past: 'prije %s',
+            s: 'par sekundi',
+            ss: translate,
+            m: processRelativeTime,
+            mm: translate,
+            h: translate,
+            hh: translate,
+            d: 'dan',
+            dd: translate,
+            M: 'mjesec',
+            MM: translate,
+            y: 'godinu',
+            yy: translate,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('ca', {
+        months: {
+            standalone:
+                'gener_febrer_març_abril_maig_juny_juliol_agost_setembre_octubre_novembre_desembre'.split(
+                    '_'
+                ),
+            format: "de gener_de febrer_de març_d'abril_de maig_de juny_de juliol_d'agost_de setembre_d'octubre_de novembre_de desembre".split(
+                '_'
+            ),
+            isFormat: /D[oD]?(\s)+MMMM/,
+        },
+        monthsShort:
+            'gen._febr._març_abr._maig_juny_jul._ag._set._oct._nov._des.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays:
+            'diumenge_dilluns_dimarts_dimecres_dijous_divendres_dissabte'.split(
+                '_'
+            ),
+        weekdaysShort: 'dg._dl._dt._dc._dj._dv._ds.'.split('_'),
+        weekdaysMin: 'dg_dl_dt_dc_dj_dv_ds'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM [de] YYYY',
+            ll: 'D MMM YYYY',
+            LLL: 'D MMMM [de] YYYY [a les] H:mm',
+            lll: 'D MMM YYYY, H:mm',
+            LLLL: 'dddd D MMMM [de] YYYY [a les] H:mm',
+            llll: 'ddd D MMM YYYY, H:mm',
+        },
+        calendar: {
+            sameDay: function () {
+                return '[avui a ' + (this.hours() !== 1 ? 'les' : 'la') + '] LT';
+            },
+            nextDay: function () {
+                return '[demà a ' + (this.hours() !== 1 ? 'les' : 'la') + '] LT';
+            },
+            nextWeek: function () {
+                return 'dddd [a ' + (this.hours() !== 1 ? 'les' : 'la') + '] LT';
+            },
+            lastDay: function () {
+                return '[ahir a ' + (this.hours() !== 1 ? 'les' : 'la') + '] LT';
+            },
+            lastWeek: function () {
+                return (
+                    '[el] dddd [passat a ' +
+                    (this.hours() !== 1 ? 'les' : 'la') +
+                    '] LT'
+                );
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: "d'aquí %s",
+            past: 'fa %s',
+            s: 'uns segons',
+            ss: '%d segons',
+            m: 'un minut',
+            mm: '%d minuts',
+            h: 'una hora',
+            hh: '%d hores',
+            d: 'un dia',
+            dd: '%d dies',
+            M: 'un mes',
+            MM: '%d mesos',
+            y: 'un any',
+            yy: '%d anys',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(r|n|t|è|a)/,
+        ordinal: function (number, period) {
+            var output =
+                number === 1
+                    ? 'r'
+                    : number === 2
+                      ? 'n'
+                      : number === 3
+                        ? 'r'
+                        : number === 4
+                          ? 't'
+                          : 'è';
+            if (period === 'w' || period === 'W') {
+                output = 'a';
+            }
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var months$3 = {
+            standalone:
+                'leden_únor_březen_duben_květen_červen_červenec_srpen_září_říjen_listopad_prosinec'.split(
+                    '_'
+                ),
+            format: 'ledna_února_března_dubna_května_června_července_srpna_září_října_listopadu_prosince'.split(
+                '_'
+            ),
+            isFormat: /DD?[o.]?(\[[^\[\]]*\]|\s)+MMMM/,
+        },
+        monthsShort = 'led_úno_bře_dub_kvě_čvn_čvc_srp_zář_říj_lis_pro'.split('_'),
+        monthsParse$1 = [
+            /^led/i,
+            /^úno/i,
+            /^bře/i,
+            /^dub/i,
+            /^kvě/i,
+            /^(čvn|červen$|června)/i,
+            /^(čvc|červenec|července)/i,
+            /^srp/i,
+            /^zář/i,
+            /^říj/i,
+            /^lis/i,
+            /^pro/i,
+        ],
+        // NOTE: 'červen' is substring of 'červenec'; therefore 'červenec' must precede 'červen' in the regex to be fully matched.
+        // Otherwise parser matches '1. červenec' as '1. červen' + 'ec'.
+        monthsRegex$1 =
+            /^(leden|únor|březen|duben|květen|červenec|července|červen|června|srpen|září|říjen|listopad|prosinec|led|úno|bře|dub|kvě|čvn|čvc|srp|zář|říj|lis|pro)/i;
+
+    function plural$1(n) {
+        return n > 1 && n < 5 && ~~(n / 10) !== 1;
+    }
+    function translate$1(number, withoutSuffix, key, isFuture) {
+        var result = number + ' ';
+        switch (key) {
+            case 's': // a few seconds / in a few seconds / a few seconds ago
+                return withoutSuffix || isFuture ? 'pár sekund' : 'pár sekundami';
+            case 'ss': // 9 seconds / in 9 seconds / 9 seconds ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural$1(number) ? 'sekundy' : 'sekund');
+                } else {
+                    return result + 'sekundami';
+                }
+            case 'm': // a minute / in a minute / a minute ago
+                return withoutSuffix ? 'minuta' : isFuture ? 'minutu' : 'minutou';
+            case 'mm': // 9 minutes / in 9 minutes / 9 minutes ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural$1(number) ? 'minuty' : 'minut');
+                } else {
+                    return result + 'minutami';
+                }
+            case 'h': // an hour / in an hour / an hour ago
+                return withoutSuffix ? 'hodina' : isFuture ? 'hodinu' : 'hodinou';
+            case 'hh': // 9 hours / in 9 hours / 9 hours ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural$1(number) ? 'hodiny' : 'hodin');
+                } else {
+                    return result + 'hodinami';
+                }
+            case 'd': // a day / in a day / a day ago
+                return withoutSuffix || isFuture ? 'den' : 'dnem';
+            case 'dd': // 9 days / in 9 days / 9 days ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural$1(number) ? 'dny' : 'dní');
+                } else {
+                    return result + 'dny';
+                }
+            case 'M': // a month / in a month / a month ago
+                return withoutSuffix || isFuture ? 'měsíc' : 'měsícem';
+            case 'MM': // 9 months / in 9 months / 9 months ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural$1(number) ? 'měsíce' : 'měsíců');
+                } else {
+                    return result + 'měsíci';
+                }
+            case 'y': // a year / in a year / a year ago
+                return withoutSuffix || isFuture ? 'rok' : 'rokem';
+            case 'yy': // 9 years / in 9 years / 9 years ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural$1(number) ? 'roky' : 'let');
+                } else {
+                    return result + 'lety';
+                }
+        }
+    }
+
+    moment.defineLocale('cs', {
+        months: months$3,
+        monthsShort: monthsShort,
+        monthsRegex: monthsRegex$1,
+        monthsShortRegex: monthsRegex$1,
+        // NOTE: 'červen' is substring of 'červenec'; therefore 'červenec' must precede 'červen' in the regex to be fully matched.
+        // Otherwise parser matches '1. červenec' as '1. červen' + 'ec'.
+        monthsStrictRegex:
+            /^(leden|ledna|února|únor|březen|března|duben|dubna|květen|května|červenec|července|červen|června|srpen|srpna|září|říjen|října|listopadu|listopad|prosinec|prosince)/i,
+        monthsShortStrictRegex:
+            /^(led|úno|bře|dub|kvě|čvn|čvc|srp|zář|říj|lis|pro)/i,
+        monthsParse: monthsParse$1,
+        longMonthsParse: monthsParse$1,
+        shortMonthsParse: monthsParse$1,
+        weekdays: 'neděle_pondělí_úterý_středa_čtvrtek_pátek_sobota'.split('_'),
+        weekdaysShort: 'ne_po_út_st_čt_pá_so'.split('_'),
+        weekdaysMin: 'ne_po_út_st_čt_pá_so'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY H:mm',
+            LLLL: 'dddd D. MMMM YYYY H:mm',
+            l: 'D. M. YYYY',
+        },
+        calendar: {
+            sameDay: '[dnes v] LT',
+            nextDay: '[zítra v] LT',
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[v neděli v] LT';
+                    case 1:
+                    case 2:
+                        return '[v] dddd [v] LT';
+                    case 3:
+                        return '[ve středu v] LT';
+                    case 4:
+                        return '[ve čtvrtek v] LT';
+                    case 5:
+                        return '[v pátek v] LT';
+                    case 6:
+                        return '[v sobotu v] LT';
+                }
+            },
+            lastDay: '[včera v] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[minulou neděli v] LT';
+                    case 1:
+                    case 2:
+                        return '[minulé] dddd [v] LT';
+                    case 3:
+                        return '[minulou středu v] LT';
+                    case 4:
+                    case 5:
+                        return '[minulý] dddd [v] LT';
+                    case 6:
+                        return '[minulou sobotu v] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'za %s',
+            past: 'před %s',
+            s: translate$1,
+            ss: translate$1,
+            m: translate$1,
+            mm: translate$1,
+            h: translate$1,
+            hh: translate$1,
+            d: translate$1,
+            dd: translate$1,
+            M: translate$1,
+            MM: translate$1,
+            y: translate$1,
+            yy: translate$1,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('cv', {
+        months: 'кӑрлач_нарӑс_пуш_ака_май_ҫӗртме_утӑ_ҫурла_авӑн_юпа_чӳк_раштав'.split(
+            '_'
+        ),
+        monthsShort: 'кӑр_нар_пуш_ака_май_ҫӗр_утӑ_ҫур_авн_юпа_чӳк_раш'.split('_'),
+        weekdays:
+            'вырсарникун_тунтикун_ытларикун_юнкун_кӗҫнерникун_эрнекун_шӑматкун'.split(
+                '_'
+            ),
+        weekdaysShort: 'выр_тун_ытл_юн_кӗҫ_эрн_шӑм'.split('_'),
+        weekdaysMin: 'вр_тн_ыт_юн_кҫ_эр_шм'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD-MM-YYYY',
+            LL: 'YYYY [ҫулхи] MMMM [уйӑхӗн] D[-мӗшӗ]',
+            LLL: 'YYYY [ҫулхи] MMMM [уйӑхӗн] D[-мӗшӗ], HH:mm',
+            LLLL: 'dddd, YYYY [ҫулхи] MMMM [уйӑхӗн] D[-мӗшӗ], HH:mm',
+        },
+        calendar: {
+            sameDay: '[Паян] LT [сехетре]',
+            nextDay: '[Ыран] LT [сехетре]',
+            lastDay: '[Ӗнер] LT [сехетре]',
+            nextWeek: '[Ҫитес] dddd LT [сехетре]',
+            lastWeek: '[Иртнӗ] dddd LT [сехетре]',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: function (output) {
+                var affix = /сехет$/i.exec(output)
+                    ? 'рен'
+                    : /ҫул$/i.exec(output)
+                      ? 'тан'
+                      : 'ран';
+                return output + affix;
+            },
+            past: '%s каялла',
+            s: 'пӗр-ик ҫеккунт',
+            ss: '%d ҫеккунт',
+            m: 'пӗр минут',
+            mm: '%d минут',
+            h: 'пӗр сехет',
+            hh: '%d сехет',
+            d: 'пӗр кун',
+            dd: '%d кун',
+            M: 'пӗр уйӑх',
+            MM: '%d уйӑх',
+            y: 'пӗр ҫул',
+            yy: '%d ҫул',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-мӗш/,
+        ordinal: '%d-мӗш',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('cy', {
+        months: 'Ionawr_Chwefror_Mawrth_Ebrill_Mai_Mehefin_Gorffennaf_Awst_Medi_Hydref_Tachwedd_Rhagfyr'.split(
+            '_'
+        ),
+        monthsShort: 'Ion_Chwe_Maw_Ebr_Mai_Meh_Gor_Aws_Med_Hyd_Tach_Rhag'.split(
+            '_'
+        ),
+        weekdays:
+            'Dydd Sul_Dydd Llun_Dydd Mawrth_Dydd Mercher_Dydd Iau_Dydd Gwener_Dydd Sadwrn'.split(
+                '_'
+            ),
+        weekdaysShort: 'Sul_Llun_Maw_Mer_Iau_Gwe_Sad'.split('_'),
+        weekdaysMin: 'Su_Ll_Ma_Me_Ia_Gw_Sa'.split('_'),
+        weekdaysParseExact: true,
+        // time formats are the same as en-gb
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Heddiw am] LT',
+            nextDay: '[Yfory am] LT',
+            nextWeek: 'dddd [am] LT',
+            lastDay: '[Ddoe am] LT',
+            lastWeek: 'dddd [diwethaf am] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'mewn %s',
+            past: '%s yn ôl',
+            s: 'ychydig eiliadau',
+            ss: '%d eiliad',
+            m: 'munud',
+            mm: '%d munud',
+            h: 'awr',
+            hh: '%d awr',
+            d: 'diwrnod',
+            dd: '%d diwrnod',
+            M: 'mis',
+            MM: '%d mis',
+            y: 'blwyddyn',
+            yy: '%d flynedd',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(fed|ain|af|il|ydd|ed|eg)/,
+        // traditional ordinal numbers above 31 are not commonly used in colloquial Welsh
+        ordinal: function (number) {
+            var b = number,
+                output = '',
+                lookup = [
+                    '',
+                    'af',
+                    'il',
+                    'ydd',
+                    'ydd',
+                    'ed',
+                    'ed',
+                    'ed',
+                    'fed',
+                    'fed',
+                    'fed', // 1af to 10fed
+                    'eg',
+                    'fed',
+                    'eg',
+                    'eg',
+                    'fed',
+                    'eg',
+                    'eg',
+                    'fed',
+                    'eg',
+                    'fed', // 11eg to 20fed
+                ];
+            if (b > 20) {
+                if (b === 40 || b === 50 || b === 60 || b === 80 || b === 100) {
+                    output = 'fed'; // not 30ain, 70ain or 90ain
+                } else {
+                    output = 'ain';
+                }
+            } else if (b > 0) {
+                output = lookup[b];
+            }
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('da', {
+        months: 'januar_februar_marts_april_maj_juni_juli_august_september_oktober_november_december'.split(
+            '_'
+        ),
+        monthsShort: 'jan_feb_mar_apr_maj_jun_jul_aug_sep_okt_nov_dec'.split('_'),
+        weekdays: 'søndag_mandag_tirsdag_onsdag_torsdag_fredag_lørdag'.split('_'),
+        weekdaysShort: 'søn_man_tir_ons_tor_fre_lør'.split('_'),
+        weekdaysMin: 'sø_ma_ti_on_to_fr_lø'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY HH:mm',
+            LLLL: 'dddd [d.] D. MMMM YYYY [kl.] HH:mm',
+        },
+        calendar: {
+            sameDay: '[i dag kl.] LT',
+            nextDay: '[i morgen kl.] LT',
+            nextWeek: 'på dddd [kl.] LT',
+            lastDay: '[i går kl.] LT',
+            lastWeek: '[i] dddd[s kl.] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'om %s',
+            past: '%s siden',
+            s: 'få sekunder',
+            ss: '%d sekunder',
+            m: 'et minut',
+            mm: '%d minutter',
+            h: 'en time',
+            hh: '%d timer',
+            d: 'en dag',
+            dd: '%d dage',
+            M: 'en måned',
+            MM: '%d måneder',
+            y: 'et år',
+            yy: '%d år',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function processRelativeTime$1(number, withoutSuffix, key, isFuture) {
+        var format = {
+            m: ['eine Minute', 'einer Minute'],
+            h: ['eine Stunde', 'einer Stunde'],
+            d: ['ein Tag', 'einem Tag'],
+            dd: [number + ' Tage', number + ' Tagen'],
+            w: ['eine Woche', 'einer Woche'],
+            M: ['ein Monat', 'einem Monat'],
+            MM: [number + ' Monate', number + ' Monaten'],
+            y: ['ein Jahr', 'einem Jahr'],
+            yy: [number + ' Jahre', number + ' Jahren'],
+        };
+        return withoutSuffix ? format[key][0] : format[key][1];
+    }
+
+    moment.defineLocale('de-at', {
+        months: 'Jänner_Februar_März_April_Mai_Juni_Juli_August_September_Oktober_November_Dezember'.split(
+            '_'
+        ),
+        monthsShort:
+            'Jän._Feb._März_Apr._Mai_Juni_Juli_Aug._Sep._Okt._Nov._Dez.'.split('_'),
+        monthsParseExact: true,
+        weekdays:
+            'Sonntag_Montag_Dienstag_Mittwoch_Donnerstag_Freitag_Samstag'.split(
+                '_'
+            ),
+        weekdaysShort: 'So._Mo._Di._Mi._Do._Fr._Sa.'.split('_'),
+        weekdaysMin: 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY HH:mm',
+            LLLL: 'dddd, D. MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[heute um] LT [Uhr]',
+            sameElse: 'L',
+            nextDay: '[morgen um] LT [Uhr]',
+            nextWeek: 'dddd [um] LT [Uhr]',
+            lastDay: '[gestern um] LT [Uhr]',
+            lastWeek: '[letzten] dddd [um] LT [Uhr]',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: 'vor %s',
+            s: 'ein paar Sekunden',
+            ss: '%d Sekunden',
+            m: processRelativeTime$1,
+            mm: '%d Minuten',
+            h: processRelativeTime$1,
+            hh: '%d Stunden',
+            d: processRelativeTime$1,
+            dd: processRelativeTime$1,
+            w: processRelativeTime$1,
+            ww: '%d Wochen',
+            M: processRelativeTime$1,
+            MM: processRelativeTime$1,
+            y: processRelativeTime$1,
+            yy: processRelativeTime$1,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function processRelativeTime$2(number, withoutSuffix, key, isFuture) {
+        var format = {
+            m: ['eine Minute', 'einer Minute'],
+            h: ['eine Stunde', 'einer Stunde'],
+            d: ['ein Tag', 'einem Tag'],
+            dd: [number + ' Tage', number + ' Tagen'],
+            w: ['eine Woche', 'einer Woche'],
+            M: ['ein Monat', 'einem Monat'],
+            MM: [number + ' Monate', number + ' Monaten'],
+            y: ['ein Jahr', 'einem Jahr'],
+            yy: [number + ' Jahre', number + ' Jahren'],
+        };
+        return withoutSuffix ? format[key][0] : format[key][1];
+    }
+
+    moment.defineLocale('de-ch', {
+        months: 'Januar_Februar_März_April_Mai_Juni_Juli_August_September_Oktober_November_Dezember'.split(
+            '_'
+        ),
+        monthsShort:
+            'Jan._Feb._März_Apr._Mai_Juni_Juli_Aug._Sep._Okt._Nov._Dez.'.split('_'),
+        monthsParseExact: true,
+        weekdays:
+            'Sonntag_Montag_Dienstag_Mittwoch_Donnerstag_Freitag_Samstag'.split(
+                '_'
+            ),
+        weekdaysShort: 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
+        weekdaysMin: 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY HH:mm',
+            LLLL: 'dddd, D. MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[heute um] LT [Uhr]',
+            sameElse: 'L',
+            nextDay: '[morgen um] LT [Uhr]',
+            nextWeek: 'dddd [um] LT [Uhr]',
+            lastDay: '[gestern um] LT [Uhr]',
+            lastWeek: '[letzten] dddd [um] LT [Uhr]',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: 'vor %s',
+            s: 'ein paar Sekunden',
+            ss: '%d Sekunden',
+            m: processRelativeTime$2,
+            mm: '%d Minuten',
+            h: processRelativeTime$2,
+            hh: '%d Stunden',
+            d: processRelativeTime$2,
+            dd: processRelativeTime$2,
+            w: processRelativeTime$2,
+            ww: '%d Wochen',
+            M: processRelativeTime$2,
+            MM: processRelativeTime$2,
+            y: processRelativeTime$2,
+            yy: processRelativeTime$2,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function processRelativeTime$3(number, withoutSuffix, key, isFuture) {
+        var format = {
+            m: ['eine Minute', 'einer Minute'],
+            h: ['eine Stunde', 'einer Stunde'],
+            d: ['ein Tag', 'einem Tag'],
+            dd: [number + ' Tage', number + ' Tagen'],
+            w: ['eine Woche', 'einer Woche'],
+            M: ['ein Monat', 'einem Monat'],
+            MM: [number + ' Monate', number + ' Monaten'],
+            y: ['ein Jahr', 'einem Jahr'],
+            yy: [number + ' Jahre', number + ' Jahren'],
+        };
+        return withoutSuffix ? format[key][0] : format[key][1];
+    }
+
+    moment.defineLocale('de', {
+        months: 'Januar_Februar_März_April_Mai_Juni_Juli_August_September_Oktober_November_Dezember'.split(
+            '_'
+        ),
+        monthsShort:
+            'Jan._Feb._März_Apr._Mai_Juni_Juli_Aug._Sep._Okt._Nov._Dez.'.split('_'),
+        monthsParseExact: true,
+        weekdays:
+            'Sonntag_Montag_Dienstag_Mittwoch_Donnerstag_Freitag_Samstag'.split(
+                '_'
+            ),
+        weekdaysShort: 'So._Mo._Di._Mi._Do._Fr._Sa.'.split('_'),
+        weekdaysMin: 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY HH:mm',
+            LLLL: 'dddd, D. MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[heute um] LT [Uhr]',
+            sameElse: 'L',
+            nextDay: '[morgen um] LT [Uhr]',
+            nextWeek: 'dddd [um] LT [Uhr]',
+            lastDay: '[gestern um] LT [Uhr]',
+            lastWeek: '[letzten] dddd [um] LT [Uhr]',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: 'vor %s',
+            s: 'ein paar Sekunden',
+            ss: '%d Sekunden',
+            m: processRelativeTime$3,
+            mm: '%d Minuten',
+            h: processRelativeTime$3,
+            hh: '%d Stunden',
+            d: processRelativeTime$3,
+            dd: processRelativeTime$3,
+            w: processRelativeTime$3,
+            ww: '%d Wochen',
+            M: processRelativeTime$3,
+            MM: processRelativeTime$3,
+            y: processRelativeTime$3,
+            yy: processRelativeTime$3,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var months$4 = [
+            'ޖެނުއަރީ',
+            'ފެބްރުއަރީ',
+            'މާރިޗު',
+            'އޭޕްރީލު',
+            'މޭ',
+            'ޖޫން',
+            'ޖުލައި',
+            'އޯގަސްޓު',
+            'ސެޕްޓެމްބަރު',
+            'އޮކްޓޯބަރު',
+            'ނޮވެމްބަރު',
+            'ޑިސެމްބަރު',
+        ],
+        weekdays = [
+            'އާދިއްތަ',
+            'ހޯމަ',
+            'އަންގާރަ',
+            'ބުދަ',
+            'ބުރާސްފަތި',
+            'ހުކުރު',
+            'ހޮނިހިރު',
+        ];
+
+    moment.defineLocale('dv', {
+        months: months$4,
+        monthsShort: months$4,
+        weekdays: weekdays,
+        weekdaysShort: weekdays,
+        weekdaysMin: 'އާދި_ހޯމަ_އަން_ބުދަ_ބުރާ_ހުކު_ހޮނި'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'D/M/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /މކ|މފ/,
+        isPM: function (input) {
+            return 'މފ' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'މކ';
+            } else {
+                return 'މފ';
+            }
+        },
+        calendar: {
+            sameDay: '[މިއަދު] LT',
+            nextDay: '[މާދަމާ] LT',
+            nextWeek: 'dddd LT',
+            lastDay: '[އިއްޔެ] LT',
+            lastWeek: '[ފާއިތުވި] dddd LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'ތެރޭގައި %s',
+            past: 'ކުރިން %s',
+            s: 'ސިކުންތުކޮޅެއް',
+            ss: 'd% ސިކުންތު',
+            m: 'މިނިޓެއް',
+            mm: 'މިނިޓު %d',
+            h: 'ގަޑިއިރެއް',
+            hh: 'ގަޑިއިރު %d',
+            d: 'ދުވަހެއް',
+            dd: 'ދުވަސް %d',
+            M: 'މަހެއް',
+            MM: 'މަސް %d',
+            y: 'އަހަރެއް',
+            yy: 'އަހަރު %d',
+        },
+        preparse: function (string) {
+            return string.replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string.replace(/,/g, '،');
+        },
+        week: {
+            dow: 7, // Sunday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function isFunction(input) {
+        return (
+            (typeof Function !== 'undefined' && input instanceof Function) ||
+            Object.prototype.toString.call(input) === '[object Function]'
+        );
+    }
+
+    moment.defineLocale('el', {
+        monthsNominativeEl:
+            'Ιανουάριος_Φεβρουάριος_Μάρτιος_Απρίλιος_Μάιος_Ιούνιος_Ιούλιος_Αύγουστος_Σεπτέμβριος_Οκτώβριος_Νοέμβριος_Δεκέμβριος'.split(
+                '_'
+            ),
+        monthsGenitiveEl:
+            'Ιανουαρίου_Φεβρουαρίου_Μαρτίου_Απριλίου_Μαΐου_Ιουνίου_Ιουλίου_Αυγούστου_Σεπτεμβρίου_Οκτωβρίου_Νοεμβρίου_Δεκεμβρίου'.split(
+                '_'
+            ),
+        months: function (momentToFormat, format) {
+            if (!momentToFormat) {
+                return this._monthsNominativeEl;
+            } else if (
+                typeof format === 'string' &&
+                /D/.test(format.substring(0, format.indexOf('MMMM')))
+            ) {
+                // if there is a day number before 'MMMM'
+                return this._monthsGenitiveEl[momentToFormat.month()];
+            } else {
+                return this._monthsNominativeEl[momentToFormat.month()];
+            }
+        },
+        monthsShort: 'Ιαν_Φεβ_Μαρ_Απρ_Μαϊ_Ιουν_Ιουλ_Αυγ_Σεπ_Οκτ_Νοε_Δεκ'.split('_'),
+        weekdays: 'Κυριακή_Δευτέρα_Τρίτη_Τετάρτη_Πέμπτη_Παρασκευή_Σάββατο'.split(
+            '_'
+        ),
+        weekdaysShort: 'Κυρ_Δευ_Τρι_Τετ_Πεμ_Παρ_Σαβ'.split('_'),
+        weekdaysMin: 'Κυ_Δε_Τρ_Τε_Πε_Πα_Σα'.split('_'),
+        meridiem: function (hours, minutes, isLower) {
+            if (hours > 11) {
+                return isLower ? 'μμ' : 'ΜΜ';
+            } else {
+                return isLower ? 'πμ' : 'ΠΜ';
+            }
+        },
+        isPM: function (input) {
+            return (input + '').toLowerCase()[0] === 'μ';
+        },
+        meridiemParse: /[ΠΜ]\.?Μ?\.?/i,
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY h:mm A',
+            LLLL: 'dddd, D MMMM YYYY h:mm A',
+        },
+        calendarEl: {
+            sameDay: '[Σήμερα {}] LT',
+            nextDay: '[Αύριο {}] LT',
+            nextWeek: 'dddd [{}] LT',
+            lastDay: '[Χθες {}] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 6:
+                        return '[το προηγούμενο] dddd [{}] LT';
+                    default:
+                        return '[την προηγούμενη] dddd [{}] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        calendar: function (key, mom) {
+            var output = this._calendarEl[key],
+                hours = mom && mom.hours();
+            if (isFunction(output)) {
+                output = output.apply(mom);
+            }
+            return output.replace('{}', hours % 12 === 1 ? 'στη' : 'στις');
+        },
+        relativeTime: {
+            future: 'σε %s',
+            past: '%s πριν',
+            s: 'λίγα δευτερόλεπτα',
+            ss: '%d δευτερόλεπτα',
+            m: 'ένα λεπτό',
+            mm: '%d λεπτά',
+            h: 'μία ώρα',
+            hh: '%d ώρες',
+            d: 'μία μέρα',
+            dd: '%d μέρες',
+            M: 'ένας μήνας',
+            MM: '%d μήνες',
+            y: 'ένας χρόνος',
+            yy: '%d χρόνια',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}η/,
+        ordinal: '%dη',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4st is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('en-au', {
+        months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY h:mm A',
+            LLLL: 'dddd, D MMMM YYYY h:mm A',
+        },
+        calendar: {
+            sameDay: '[Today at] LT',
+            nextDay: '[Tomorrow at] LT',
+            nextWeek: 'dddd [at] LT',
+            lastDay: '[Yesterday at] LT',
+            lastWeek: '[Last] dddd [at] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: '%s ago',
+            s: 'a few seconds',
+            ss: '%d seconds',
+            m: 'a minute',
+            mm: '%d minutes',
+            h: 'an hour',
+            hh: '%d hours',
+            d: 'a day',
+            dd: '%d days',
+            M: 'a month',
+            MM: '%d months',
+            y: 'a year',
+            yy: '%d years',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('en-ca', {
+        months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'YYYY-MM-DD',
+            LL: 'MMMM D, YYYY',
+            LLL: 'MMMM D, YYYY h:mm A',
+            LLLL: 'dddd, MMMM D, YYYY h:mm A',
+        },
+        calendar: {
+            sameDay: '[Today at] LT',
+            nextDay: '[Tomorrow at] LT',
+            nextWeek: 'dddd [at] LT',
+            lastDay: '[Yesterday at] LT',
+            lastWeek: '[Last] dddd [at] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: '%s ago',
+            s: 'a few seconds',
+            ss: '%d seconds',
+            m: 'a minute',
+            mm: '%d minutes',
+            h: 'an hour',
+            hh: '%d hours',
+            d: 'a day',
+            dd: '%d days',
+            M: 'a month',
+            MM: '%d months',
+            y: 'a year',
+            yy: '%d years',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('en-gb', {
+        months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Today at] LT',
+            nextDay: '[Tomorrow at] LT',
+            nextWeek: 'dddd [at] LT',
+            lastDay: '[Yesterday at] LT',
+            lastWeek: '[Last] dddd [at] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: '%s ago',
+            s: 'a few seconds',
+            ss: '%d seconds',
+            m: 'a minute',
+            mm: '%d minutes',
+            h: 'an hour',
+            hh: '%d hours',
+            d: 'a day',
+            dd: '%d days',
+            M: 'a month',
+            MM: '%d months',
+            y: 'a year',
+            yy: '%d years',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('en-ie', {
+        months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Today at] LT',
+            nextDay: '[Tomorrow at] LT',
+            nextWeek: 'dddd [at] LT',
+            lastDay: '[Yesterday at] LT',
+            lastWeek: '[Last] dddd [at] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: '%s ago',
+            s: 'a few seconds',
+            ss: '%d seconds',
+            m: 'a minute',
+            mm: '%d minutes',
+            h: 'an hour',
+            hh: '%d hours',
+            d: 'a day',
+            dd: '%d days',
+            M: 'a month',
+            MM: '%d months',
+            y: 'a year',
+            yy: '%d years',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('en-il', {
+        months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Today at] LT',
+            nextDay: '[Tomorrow at] LT',
+            nextWeek: 'dddd [at] LT',
+            lastDay: '[Yesterday at] LT',
+            lastWeek: '[Last] dddd [at] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: '%s ago',
+            s: 'a few seconds',
+            ss: '%d seconds',
+            m: 'a minute',
+            mm: '%d minutes',
+            h: 'an hour',
+            hh: '%d hours',
+            d: 'a day',
+            dd: '%d days',
+            M: 'a month',
+            MM: '%d months',
+            y: 'a year',
+            yy: '%d years',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('en-in', {
+        months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY h:mm A',
+            LLLL: 'dddd, D MMMM YYYY h:mm A',
+        },
+        calendar: {
+            sameDay: '[Today at] LT',
+            nextDay: '[Tomorrow at] LT',
+            nextWeek: 'dddd [at] LT',
+            lastDay: '[Yesterday at] LT',
+            lastWeek: '[Last] dddd [at] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: '%s ago',
+            s: 'a few seconds',
+            ss: '%d seconds',
+            m: 'a minute',
+            mm: '%d minutes',
+            h: 'an hour',
+            hh: '%d hours',
+            d: 'a day',
+            dd: '%d days',
+            M: 'a month',
+            MM: '%d months',
+            y: 'a year',
+            yy: '%d years',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 1st is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('en-nz', {
+        months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY h:mm A',
+            LLLL: 'dddd, D MMMM YYYY h:mm A',
+        },
+        calendar: {
+            sameDay: '[Today at] LT',
+            nextDay: '[Tomorrow at] LT',
+            nextWeek: 'dddd [at] LT',
+            lastDay: '[Yesterday at] LT',
+            lastWeek: '[Last] dddd [at] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: '%s ago',
+            s: 'a few seconds',
+            ss: '%d seconds',
+            m: 'a minute',
+            mm: '%d minutes',
+            h: 'an hour',
+            hh: '%d hours',
+            d: 'a day',
+            dd: '%d days',
+            M: 'a month',
+            MM: '%d months',
+            y: 'a year',
+            yy: '%d years',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('en-sg', {
+        months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Today at] LT',
+            nextDay: '[Tomorrow at] LT',
+            nextWeek: 'dddd [at] LT',
+            lastDay: '[Yesterday at] LT',
+            lastWeek: '[Last] dddd [at] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: '%s ago',
+            s: 'a few seconds',
+            ss: '%d seconds',
+            m: 'a minute',
+            mm: '%d minutes',
+            h: 'an hour',
+            hh: '%d hours',
+            d: 'a day',
+            dd: '%d days',
+            M: 'a month',
+            MM: '%d months',
+            y: 'a year',
+            yy: '%d years',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('eo', {
+        months: 'januaro_februaro_marto_aprilo_majo_junio_julio_aŭgusto_septembro_oktobro_novembro_decembro'.split(
+            '_'
+        ),
+        monthsShort: 'jan_feb_mart_apr_maj_jun_jul_aŭg_sept_okt_nov_dec'.split('_'),
+        weekdays: 'dimanĉo_lundo_mardo_merkredo_ĵaŭdo_vendredo_sabato'.split('_'),
+        weekdaysShort: 'dim_lun_mard_merk_ĵaŭ_ven_sab'.split('_'),
+        weekdaysMin: 'di_lu_ma_me_ĵa_ve_sa'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY-MM-DD',
+            LL: '[la] D[-an de] MMMM, YYYY',
+            LLL: '[la] D[-an de] MMMM, YYYY HH:mm',
+            LLLL: 'dddd[n], [la] D[-an de] MMMM, YYYY HH:mm',
+            llll: 'ddd, [la] D[-an de] MMM, YYYY HH:mm',
+        },
+        meridiemParse: /[ap]\.t\.m/i,
+        isPM: function (input) {
+            return input.charAt(0).toLowerCase() === 'p';
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours > 11) {
+                return isLower ? 'p.t.m.' : 'P.T.M.';
+            } else {
+                return isLower ? 'a.t.m.' : 'A.T.M.';
+            }
+        },
+        calendar: {
+            sameDay: '[Hodiaŭ je] LT',
+            nextDay: '[Morgaŭ je] LT',
+            nextWeek: 'dddd[n je] LT',
+            lastDay: '[Hieraŭ je] LT',
+            lastWeek: '[pasintan] dddd[n je] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'post %s',
+            past: 'antaŭ %s',
+            s: 'kelkaj sekundoj',
+            ss: '%d sekundoj',
+            m: 'unu minuto',
+            mm: '%d minutoj',
+            h: 'unu horo',
+            hh: '%d horoj',
+            d: 'unu tago', //ne 'diurno', ĉar estas uzita por proksimumo
+            dd: '%d tagoj',
+            M: 'unu monato',
+            MM: '%d monatoj',
+            y: 'unu jaro',
+            yy: '%d jaroj',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}a/,
+        ordinal: '%da',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var monthsShortDot =
+            'ene._feb._mar._abr._may._jun._jul._ago._sep._oct._nov._dic.'.split(
+                '_'
+            ),
+        monthsShort$1 = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_'),
+        monthsParse$2 = [
+            /^ene/i,
+            /^feb/i,
+            /^mar/i,
+            /^abr/i,
+            /^may/i,
+            /^jun/i,
+            /^jul/i,
+            /^ago/i,
+            /^sep/i,
+            /^oct/i,
+            /^nov/i,
+            /^dic/i,
+        ],
+        monthsRegex$2 =
+            /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre|ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i;
+
+    moment.defineLocale('es-do', {
+        months: 'enero_febrero_marzo_abril_mayo_junio_julio_agosto_septiembre_octubre_noviembre_diciembre'.split(
+            '_'
+        ),
+        monthsShort: function (m, format) {
+            if (!m) {
+                return monthsShortDot;
+            } else if (/-MMM-/.test(format)) {
+                return monthsShort$1[m.month()];
+            } else {
+                return monthsShortDot[m.month()];
+            }
+        },
+        monthsRegex: monthsRegex$2,
+        monthsShortRegex: monthsRegex$2,
+        monthsStrictRegex:
+            /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre)/i,
+        monthsShortStrictRegex:
+            /^(ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i,
+        monthsParse: monthsParse$2,
+        longMonthsParse: monthsParse$2,
+        shortMonthsParse: monthsParse$2,
+        weekdays: 'domingo_lunes_martes_miércoles_jueves_viernes_sábado'.split('_'),
+        weekdaysShort: 'dom._lun._mar._mié._jue._vie._sáb.'.split('_'),
+        weekdaysMin: 'do_lu_ma_mi_ju_vi_sá'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'DD/MM/YYYY',
+            LL: 'D [de] MMMM [de] YYYY',
+            LLL: 'D [de] MMMM [de] YYYY h:mm A',
+            LLLL: 'dddd, D [de] MMMM [de] YYYY h:mm A',
+        },
+        calendar: {
+            sameDay: function () {
+                return '[hoy a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            nextDay: function () {
+                return '[mañana a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            nextWeek: function () {
+                return 'dddd [a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            lastDay: function () {
+                return '[ayer a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            lastWeek: function () {
+                return (
+                    '[el] dddd [pasado a la' +
+                    (this.hours() !== 1 ? 's' : '') +
+                    '] LT'
+                );
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'en %s',
+            past: 'hace %s',
+            s: 'unos segundos',
+            ss: '%d segundos',
+            m: 'un minuto',
+            mm: '%d minutos',
+            h: 'una hora',
+            hh: '%d horas',
+            d: 'un día',
+            dd: '%d días',
+            w: 'una semana',
+            ww: '%d semanas',
+            M: 'un mes',
+            MM: '%d meses',
+            y: 'un año',
+            yy: '%d años',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var monthsShortDot$1 =
+            'ene._feb._mar._abr._may._jun._jul._ago._sep._oct._nov._dic.'.split(
+                '_'
+            ),
+        monthsShort$2 = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_'),
+        monthsParse$3 = [
+            /^ene/i,
+            /^feb/i,
+            /^mar/i,
+            /^abr/i,
+            /^may/i,
+            /^jun/i,
+            /^jul/i,
+            /^ago/i,
+            /^sep/i,
+            /^oct/i,
+            /^nov/i,
+            /^dic/i,
+        ],
+        monthsRegex$3 =
+            /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre|ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i;
+
+    moment.defineLocale('es-mx', {
+        months: 'enero_febrero_marzo_abril_mayo_junio_julio_agosto_septiembre_octubre_noviembre_diciembre'.split(
+            '_'
+        ),
+        monthsShort: function (m, format) {
+            if (!m) {
+                return monthsShortDot$1;
+            } else if (/-MMM-/.test(format)) {
+                return monthsShort$2[m.month()];
+            } else {
+                return monthsShortDot$1[m.month()];
+            }
+        },
+        monthsRegex: monthsRegex$3,
+        monthsShortRegex: monthsRegex$3,
+        monthsStrictRegex:
+            /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre)/i,
+        monthsShortStrictRegex:
+            /^(ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i,
+        monthsParse: monthsParse$3,
+        longMonthsParse: monthsParse$3,
+        shortMonthsParse: monthsParse$3,
+        weekdays: 'domingo_lunes_martes_miércoles_jueves_viernes_sábado'.split('_'),
+        weekdaysShort: 'dom._lun._mar._mié._jue._vie._sáb.'.split('_'),
+        weekdaysMin: 'do_lu_ma_mi_ju_vi_sá'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D [de] MMMM [de] YYYY',
+            LLL: 'D [de] MMMM [de] YYYY H:mm',
+            LLLL: 'dddd, D [de] MMMM [de] YYYY H:mm',
+        },
+        calendar: {
+            sameDay: function () {
+                return '[hoy a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            nextDay: function () {
+                return '[mañana a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            nextWeek: function () {
+                return 'dddd [a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            lastDay: function () {
+                return '[ayer a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            lastWeek: function () {
+                return (
+                    '[el] dddd [pasado a la' +
+                    (this.hours() !== 1 ? 's' : '') +
+                    '] LT'
+                );
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'en %s',
+            past: 'hace %s',
+            s: 'unos segundos',
+            ss: '%d segundos',
+            m: 'un minuto',
+            mm: '%d minutos',
+            h: 'una hora',
+            hh: '%d horas',
+            d: 'un día',
+            dd: '%d días',
+            w: 'una semana',
+            ww: '%d semanas',
+            M: 'un mes',
+            MM: '%d meses',
+            y: 'un año',
+            yy: '%d años',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+        invalidDate: 'Fecha inválida',
+    });
+
+    //! moment.js locale configuration
+
+    var monthsShortDot$2 =
+            'ene._feb._mar._abr._may._jun._jul._ago._sep._oct._nov._dic.'.split(
+                '_'
+            ),
+        monthsShort$3 = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_'),
+        monthsParse$4 = [
+            /^ene/i,
+            /^feb/i,
+            /^mar/i,
+            /^abr/i,
+            /^may/i,
+            /^jun/i,
+            /^jul/i,
+            /^ago/i,
+            /^sep/i,
+            /^oct/i,
+            /^nov/i,
+            /^dic/i,
+        ],
+        monthsRegex$4 =
+            /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre|ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i;
+
+    moment.defineLocale('es-us', {
+        months: 'enero_febrero_marzo_abril_mayo_junio_julio_agosto_septiembre_octubre_noviembre_diciembre'.split(
+            '_'
+        ),
+        monthsShort: function (m, format) {
+            if (!m) {
+                return monthsShortDot$2;
+            } else if (/-MMM-/.test(format)) {
+                return monthsShort$3[m.month()];
+            } else {
+                return monthsShortDot$2[m.month()];
+            }
+        },
+        monthsRegex: monthsRegex$4,
+        monthsShortRegex: monthsRegex$4,
+        monthsStrictRegex:
+            /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre)/i,
+        monthsShortStrictRegex:
+            /^(ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i,
+        monthsParse: monthsParse$4,
+        longMonthsParse: monthsParse$4,
+        shortMonthsParse: monthsParse$4,
+        weekdays: 'domingo_lunes_martes_miércoles_jueves_viernes_sábado'.split('_'),
+        weekdaysShort: 'dom._lun._mar._mié._jue._vie._sáb.'.split('_'),
+        weekdaysMin: 'do_lu_ma_mi_ju_vi_sá'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'MM/DD/YYYY',
+            LL: 'D [de] MMMM [de] YYYY',
+            LLL: 'D [de] MMMM [de] YYYY h:mm A',
+            LLLL: 'dddd, D [de] MMMM [de] YYYY h:mm A',
+        },
+        calendar: {
+            sameDay: function () {
+                return '[hoy a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            nextDay: function () {
+                return '[mañana a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            nextWeek: function () {
+                return 'dddd [a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            lastDay: function () {
+                return '[ayer a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            lastWeek: function () {
+                return (
+                    '[el] dddd [pasado a la' +
+                    (this.hours() !== 1 ? 's' : '') +
+                    '] LT'
+                );
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'en %s',
+            past: 'hace %s',
+            s: 'unos segundos',
+            ss: '%d segundos',
+            m: 'un minuto',
+            mm: '%d minutos',
+            h: 'una hora',
+            hh: '%d horas',
+            d: 'un día',
+            dd: '%d días',
+            w: 'una semana',
+            ww: '%d semanas',
+            M: 'un mes',
+            MM: '%d meses',
+            y: 'un año',
+            yy: '%d años',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var monthsShortDot$3 =
+            'ene._feb._mar._abr._may._jun._jul._ago._sep._oct._nov._dic.'.split(
+                '_'
+            ),
+        monthsShort$4 = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_'),
+        monthsParse$5 = [
+            /^ene/i,
+            /^feb/i,
+            /^mar/i,
+            /^abr/i,
+            /^may/i,
+            /^jun/i,
+            /^jul/i,
+            /^ago/i,
+            /^sep/i,
+            /^oct/i,
+            /^nov/i,
+            /^dic/i,
+        ],
+        monthsRegex$5 =
+            /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre|ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i;
+
+    moment.defineLocale('es', {
+        months: 'enero_febrero_marzo_abril_mayo_junio_julio_agosto_septiembre_octubre_noviembre_diciembre'.split(
+            '_'
+        ),
+        monthsShort: function (m, format) {
+            if (!m) {
+                return monthsShortDot$3;
+            } else if (/-MMM-/.test(format)) {
+                return monthsShort$4[m.month()];
+            } else {
+                return monthsShortDot$3[m.month()];
+            }
+        },
+        monthsRegex: monthsRegex$5,
+        monthsShortRegex: monthsRegex$5,
+        monthsStrictRegex:
+            /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre)/i,
+        monthsShortStrictRegex:
+            /^(ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i,
+        monthsParse: monthsParse$5,
+        longMonthsParse: monthsParse$5,
+        shortMonthsParse: monthsParse$5,
+        weekdays: 'domingo_lunes_martes_miércoles_jueves_viernes_sábado'.split('_'),
+        weekdaysShort: 'dom._lun._mar._mié._jue._vie._sáb.'.split('_'),
+        weekdaysMin: 'do_lu_ma_mi_ju_vi_sá'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D [de] MMMM [de] YYYY',
+            LLL: 'D [de] MMMM [de] YYYY H:mm',
+            LLLL: 'dddd, D [de] MMMM [de] YYYY H:mm',
+        },
+        calendar: {
+            sameDay: function () {
+                return '[hoy a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            nextDay: function () {
+                return '[mañana a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            nextWeek: function () {
+                return 'dddd [a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            lastDay: function () {
+                return '[ayer a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            lastWeek: function () {
+                return (
+                    '[el] dddd [pasado a la' +
+                    (this.hours() !== 1 ? 's' : '') +
+                    '] LT'
+                );
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'en %s',
+            past: 'hace %s',
+            s: 'unos segundos',
+            ss: '%d segundos',
+            m: 'un minuto',
+            mm: '%d minutos',
+            h: 'una hora',
+            hh: '%d horas',
+            d: 'un día',
+            dd: '%d días',
+            w: 'una semana',
+            ww: '%d semanas',
+            M: 'un mes',
+            MM: '%d meses',
+            y: 'un año',
+            yy: '%d años',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+        invalidDate: 'Fecha inválida',
+    });
+
+    //! moment.js locale configuration
+
+    function processRelativeTime$4(number, withoutSuffix, key, isFuture) {
+        var format = {
+            s: ['mõne sekundi', 'mõni sekund', 'paar sekundit'],
+            ss: [number + 'sekundi', number + 'sekundit'],
+            m: ['ühe minuti', 'üks minut'],
+            mm: [number + ' minuti', number + ' minutit'],
+            h: ['ühe tunni', 'tund aega', 'üks tund'],
+            hh: [number + ' tunni', number + ' tundi'],
+            d: ['ühe päeva', 'üks päev'],
+            M: ['kuu aja', 'kuu aega', 'üks kuu'],
+            MM: [number + ' kuu', number + ' kuud'],
+            y: ['ühe aasta', 'aasta', 'üks aasta'],
+            yy: [number + ' aasta', number + ' aastat'],
+        };
+        if (withoutSuffix) {
+            return format[key][2] ? format[key][2] : format[key][1];
+        }
+        return isFuture ? format[key][0] : format[key][1];
+    }
+
+    moment.defineLocale('et', {
+        months: 'jaanuar_veebruar_märts_aprill_mai_juuni_juuli_august_september_oktoober_november_detsember'.split(
+            '_'
+        ),
+        monthsShort:
+            'jaan_veebr_märts_apr_mai_juuni_juuli_aug_sept_okt_nov_dets'.split('_'),
+        weekdays:
+            'pühapäev_esmaspäev_teisipäev_kolmapäev_neljapäev_reede_laupäev'.split(
+                '_'
+            ),
+        weekdaysShort: 'P_E_T_K_N_R_L'.split('_'),
+        weekdaysMin: 'P_E_T_K_N_R_L'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY H:mm',
+            LLLL: 'dddd, D. MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[Täna,] LT',
+            nextDay: '[Homme,] LT',
+            nextWeek: '[Järgmine] dddd LT',
+            lastDay: '[Eile,] LT',
+            lastWeek: '[Eelmine] dddd LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s pärast',
+            past: '%s tagasi',
+            s: processRelativeTime$4,
+            ss: processRelativeTime$4,
+            m: processRelativeTime$4,
+            mm: processRelativeTime$4,
+            h: processRelativeTime$4,
+            hh: processRelativeTime$4,
+            d: processRelativeTime$4,
+            dd: '%d päeva',
+            M: processRelativeTime$4,
+            MM: processRelativeTime$4,
+            y: processRelativeTime$4,
+            yy: processRelativeTime$4,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('eu', {
+        months: 'urtarrila_otsaila_martxoa_apirila_maiatza_ekaina_uztaila_abuztua_iraila_urria_azaroa_abendua'.split(
+            '_'
+        ),
+        monthsShort:
+            'urt._ots._mar._api._mai._eka._uzt._abu._ira._urr._aza._abe.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays:
+            'igandea_astelehena_asteartea_asteazkena_osteguna_ostirala_larunbata'.split(
+                '_'
+            ),
+        weekdaysShort: 'ig._al._ar._az._og._ol._lr.'.split('_'),
+        weekdaysMin: 'ig_al_ar_az_og_ol_lr'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY-MM-DD',
+            LL: 'YYYY[ko] MMMM[ren] D[a]',
+            LLL: 'YYYY[ko] MMMM[ren] D[a] HH:mm',
+            LLLL: 'dddd, YYYY[ko] MMMM[ren] D[a] HH:mm',
+            l: 'YYYY-M-D',
+            ll: 'YYYY[ko] MMM D[a]',
+            lll: 'YYYY[ko] MMM D[a] HH:mm',
+            llll: 'ddd, YYYY[ko] MMM D[a] HH:mm',
+        },
+        calendar: {
+            sameDay: '[gaur] LT[etan]',
+            nextDay: '[bihar] LT[etan]',
+            nextWeek: 'dddd LT[etan]',
+            lastDay: '[atzo] LT[etan]',
+            lastWeek: '[aurreko] dddd LT[etan]',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s barru',
+            past: 'duela %s',
+            s: 'segundo batzuk',
+            ss: '%d segundo',
+            m: 'minutu bat',
+            mm: '%d minutu',
+            h: 'ordu bat',
+            hh: '%d ordu',
+            d: 'egun bat',
+            dd: '%d egun',
+            M: 'hilabete bat',
+            MM: '%d hilabete',
+            y: 'urte bat',
+            yy: '%d urte',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$7 = {
+            1: '۱',
+            2: '۲',
+            3: '۳',
+            4: '۴',
+            5: '۵',
+            6: '۶',
+            7: '۷',
+            8: '۸',
+            9: '۹',
+            0: '۰',
+        },
+        numberMap$6 = {
+            '۱': '1',
+            '۲': '2',
+            '۳': '3',
+            '۴': '4',
+            '۵': '5',
+            '۶': '6',
+            '۷': '7',
+            '۸': '8',
+            '۹': '9',
+            '۰': '0',
+        };
+
+    moment.defineLocale('fa', {
+        months: 'ژانویه_فوریه_مارس_آوریل_مه_ژوئن_ژوئیه_اوت_سپتامبر_اکتبر_نوامبر_دسامبر'.split(
+            '_'
+        ),
+        monthsShort:
+            'ژانویه_فوریه_مارس_آوریل_مه_ژوئن_ژوئیه_اوت_سپتامبر_اکتبر_نوامبر_دسامبر'.split(
+                '_'
+            ),
+        weekdays:
+            'یک\u200cشنبه_دوشنبه_سه\u200cشنبه_چهارشنبه_پنج\u200cشنبه_جمعه_شنبه'.split(
+                '_'
+            ),
+        weekdaysShort:
+            'یک\u200cشنبه_دوشنبه_سه\u200cشنبه_چهارشنبه_پنج\u200cشنبه_جمعه_شنبه'.split(
+                '_'
+            ),
+        weekdaysMin: 'ی_د_س_چ_پ_ج_ش'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /قبل از ظهر|بعد از ظهر/,
+        isPM: function (input) {
+            return /بعد از ظهر/.test(input);
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'قبل از ظهر';
+            } else {
+                return 'بعد از ظهر';
+            }
+        },
+        calendar: {
+            sameDay: '[امروز ساعت] LT',
+            nextDay: '[فردا ساعت] LT',
+            nextWeek: 'dddd [ساعت] LT',
+            lastDay: '[دیروز ساعت] LT',
+            lastWeek: 'dddd [پیش] [ساعت] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'در %s',
+            past: '%s پیش',
+            s: 'چند ثانیه',
+            ss: '%d ثانیه',
+            m: 'یک دقیقه',
+            mm: '%d دقیقه',
+            h: 'یک ساعت',
+            hh: '%d ساعت',
+            d: 'یک روز',
+            dd: '%d روز',
+            M: 'یک ماه',
+            MM: '%d ماه',
+            y: 'یک سال',
+            yy: '%d سال',
+        },
+        preparse: function (string) {
+            return string
+                .replace(/[۰-۹]/g, function (match) {
+                    return numberMap$6[match];
+                })
+                .replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string
+                .replace(/\d/g, function (match) {
+                    return symbolMap$7[match];
+                })
+                .replace(/,/g, '،');
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}م/,
+        ordinal: '%dم',
+        week: {
+            dow: 6, // Saturday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var numbersPast =
+            'nolla yksi kaksi kolme neljä viisi kuusi seitsemän kahdeksan yhdeksän'.split(
+                ' '
+            ),
+        numbersFuture = [
+            'nolla',
+            'yhden',
+            'kahden',
+            'kolmen',
+            'neljän',
+            'viiden',
+            'kuuden',
+            numbersPast[7],
+            numbersPast[8],
+            numbersPast[9],
+        ];
+    function translate$2(number, withoutSuffix, key, isFuture) {
+        var result = '';
+        switch (key) {
+            case 's':
+                return isFuture ? 'muutaman sekunnin' : 'muutama sekunti';
+            case 'ss':
+                result = isFuture ? 'sekunnin' : 'sekuntia';
+                break;
+            case 'm':
+                return isFuture ? 'minuutin' : 'minuutti';
+            case 'mm':
+                result = isFuture ? 'minuutin' : 'minuuttia';
+                break;
+            case 'h':
+                return isFuture ? 'tunnin' : 'tunti';
+            case 'hh':
+                result = isFuture ? 'tunnin' : 'tuntia';
+                break;
+            case 'd':
+                return isFuture ? 'päivän' : 'päivä';
+            case 'dd':
+                result = isFuture ? 'päivän' : 'päivää';
+                break;
+            case 'M':
+                return isFuture ? 'kuukauden' : 'kuukausi';
+            case 'MM':
+                result = isFuture ? 'kuukauden' : 'kuukautta';
+                break;
+            case 'y':
+                return isFuture ? 'vuoden' : 'vuosi';
+            case 'yy':
+                result = isFuture ? 'vuoden' : 'vuotta';
+                break;
+        }
+        result = verbalNumber(number, isFuture) + ' ' + result;
+        return result;
+    }
+    function verbalNumber(number, isFuture) {
+        return number < 10
+            ? isFuture
+                ? numbersFuture[number]
+                : numbersPast[number]
+            : number;
+    }
+
+    moment.defineLocale('fi', {
+        months: 'tammikuu_helmikuu_maaliskuu_huhtikuu_toukokuu_kesäkuu_heinäkuu_elokuu_syyskuu_lokakuu_marraskuu_joulukuu'.split(
+            '_'
+        ),
+        monthsShort:
+            'tammi_helmi_maalis_huhti_touko_kesä_heinä_elo_syys_loka_marras_joulu'.split(
+                '_'
+            ),
+        weekdays:
+            'sunnuntai_maanantai_tiistai_keskiviikko_torstai_perjantai_lauantai'.split(
+                '_'
+            ),
+        weekdaysShort: 'su_ma_ti_ke_to_pe_la'.split('_'),
+        weekdaysMin: 'su_ma_ti_ke_to_pe_la'.split('_'),
+        longDateFormat: {
+            LT: 'HH.mm',
+            LTS: 'HH.mm.ss',
+            L: 'DD.MM.YYYY',
+            LL: 'Do MMMM[ta] YYYY',
+            LLL: 'Do MMMM[ta] YYYY, [klo] HH.mm',
+            LLLL: 'dddd, Do MMMM[ta] YYYY, [klo] HH.mm',
+            l: 'D.M.YYYY',
+            ll: 'Do MMM YYYY',
+            lll: 'Do MMM YYYY, [klo] HH.mm',
+            llll: 'ddd, Do MMM YYYY, [klo] HH.mm',
+        },
+        calendar: {
+            sameDay: '[tänään] [klo] LT',
+            nextDay: '[huomenna] [klo] LT',
+            nextWeek: 'dddd [klo] LT',
+            lastDay: '[eilen] [klo] LT',
+            lastWeek: '[viime] dddd[na] [klo] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s päästä',
+            past: '%s sitten',
+            s: translate$2,
+            ss: translate$2,
+            m: translate$2,
+            mm: translate$2,
+            h: translate$2,
+            hh: translate$2,
+            d: translate$2,
+            dd: translate$2,
+            M: translate$2,
+            MM: translate$2,
+            y: translate$2,
+            yy: translate$2,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('fil', {
+        months: 'Enero_Pebrero_Marso_Abril_Mayo_Hunyo_Hulyo_Agosto_Setyembre_Oktubre_Nobyembre_Disyembre'.split(
+            '_'
+        ),
+        monthsShort: 'Ene_Peb_Mar_Abr_May_Hun_Hul_Ago_Set_Okt_Nob_Dis'.split('_'),
+        weekdays: 'Linggo_Lunes_Martes_Miyerkules_Huwebes_Biyernes_Sabado'.split(
+            '_'
+        ),
+        weekdaysShort: 'Lin_Lun_Mar_Miy_Huw_Biy_Sab'.split('_'),
+        weekdaysMin: 'Li_Lu_Ma_Mi_Hu_Bi_Sab'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'MM/D/YYYY',
+            LL: 'MMMM D, YYYY',
+            LLL: 'MMMM D, YYYY HH:mm',
+            LLLL: 'dddd, MMMM DD, YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: 'LT [ngayong araw]',
+            nextDay: '[Bukas ng] LT',
+            nextWeek: 'LT [sa susunod na] dddd',
+            lastDay: 'LT [kahapon]',
+            lastWeek: 'LT [noong nakaraang] dddd',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'sa loob ng %s',
+            past: '%s ang nakalipas',
+            s: 'ilang segundo',
+            ss: '%d segundo',
+            m: 'isang minuto',
+            mm: '%d minuto',
+            h: 'isang oras',
+            hh: '%d oras',
+            d: 'isang araw',
+            dd: '%d araw',
+            M: 'isang buwan',
+            MM: '%d buwan',
+            y: 'isang taon',
+            yy: '%d taon',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}/,
+        ordinal: function (number) {
+            return number;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('fo', {
+        months: 'januar_februar_mars_apríl_mai_juni_juli_august_september_oktober_november_desember'.split(
+            '_'
+        ),
+        monthsShort: 'jan_feb_mar_apr_mai_jun_jul_aug_sep_okt_nov_des'.split('_'),
+        weekdays:
+            'sunnudagur_mánadagur_týsdagur_mikudagur_hósdagur_fríggjadagur_leygardagur'.split(
+                '_'
+            ),
+        weekdaysShort: 'sun_mán_týs_mik_hós_frí_ley'.split('_'),
+        weekdaysMin: 'su_má_tý_mi_hó_fr_le'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D. MMMM, YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Í dag kl.] LT',
+            nextDay: '[Í morgin kl.] LT',
+            nextWeek: 'dddd [kl.] LT',
+            lastDay: '[Í gjár kl.] LT',
+            lastWeek: '[síðstu] dddd [kl] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'um %s',
+            past: '%s síðani',
+            s: 'fá sekund',
+            ss: '%d sekundir',
+            m: 'ein minuttur',
+            mm: '%d minuttir',
+            h: 'ein tími',
+            hh: '%d tímar',
+            d: 'ein dagur',
+            dd: '%d dagar',
+            M: 'ein mánaður',
+            MM: '%d mánaðir',
+            y: 'eitt ár',
+            yy: '%d ár',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('fr-ca', {
+        months: 'janvier_février_mars_avril_mai_juin_juillet_août_septembre_octobre_novembre_décembre'.split(
+            '_'
+        ),
+        monthsShort:
+            'janv._févr._mars_avr._mai_juin_juil._août_sept._oct._nov._déc.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'dimanche_lundi_mardi_mercredi_jeudi_vendredi_samedi'.split('_'),
+        weekdaysShort: 'dim._lun._mar._mer._jeu._ven._sam.'.split('_'),
+        weekdaysMin: 'di_lu_ma_me_je_ve_sa'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY-MM-DD',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Aujourd’hui à] LT',
+            nextDay: '[Demain à] LT',
+            nextWeek: 'dddd [à] LT',
+            lastDay: '[Hier à] LT',
+            lastWeek: 'dddd [dernier à] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'dans %s',
+            past: 'il y a %s',
+            s: 'quelques secondes',
+            ss: '%d secondes',
+            m: 'une minute',
+            mm: '%d minutes',
+            h: 'une heure',
+            hh: '%d heures',
+            d: 'un jour',
+            dd: '%d jours',
+            M: 'un mois',
+            MM: '%d mois',
+            y: 'un an',
+            yy: '%d ans',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(er|e)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                // Words with masculine grammatical gender: mois, trimestre, jour
+                default:
+                case 'M':
+                case 'Q':
+                case 'D':
+                case 'DDD':
+                case 'd':
+                    return number + (number === 1 ? 'er' : 'e');
+
+                // Words with feminine grammatical gender: semaine
+                case 'w':
+                case 'W':
+                    return number + (number === 1 ? 're' : 'e');
+            }
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('fr-ch', {
+        months: 'janvier_février_mars_avril_mai_juin_juillet_août_septembre_octobre_novembre_décembre'.split(
+            '_'
+        ),
+        monthsShort:
+            'janv._févr._mars_avr._mai_juin_juil._août_sept._oct._nov._déc.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'dimanche_lundi_mardi_mercredi_jeudi_vendredi_samedi'.split('_'),
+        weekdaysShort: 'dim._lun._mar._mer._jeu._ven._sam.'.split('_'),
+        weekdaysMin: 'di_lu_ma_me_je_ve_sa'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Aujourd’hui à] LT',
+            nextDay: '[Demain à] LT',
+            nextWeek: 'dddd [à] LT',
+            lastDay: '[Hier à] LT',
+            lastWeek: 'dddd [dernier à] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'dans %s',
+            past: 'il y a %s',
+            s: 'quelques secondes',
+            ss: '%d secondes',
+            m: 'une minute',
+            mm: '%d minutes',
+            h: 'une heure',
+            hh: '%d heures',
+            d: 'un jour',
+            dd: '%d jours',
+            M: 'un mois',
+            MM: '%d mois',
+            y: 'un an',
+            yy: '%d ans',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(er|e)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                // Words with masculine grammatical gender: mois, trimestre, jour
+                default:
+                case 'M':
+                case 'Q':
+                case 'D':
+                case 'DDD':
+                case 'd':
+                    return number + (number === 1 ? 'er' : 'e');
+
+                // Words with feminine grammatical gender: semaine
+                case 'w':
+                case 'W':
+                    return number + (number === 1 ? 're' : 'e');
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var monthsStrictRegex$1 =
+            /^(janvier|février|mars|avril|mai|juin|juillet|août|septembre|octobre|novembre|décembre)/i,
+        monthsShortStrictRegex$1 =
+            /(janv\.?|févr\.?|mars|avr\.?|mai|juin|juil\.?|août|sept\.?|oct\.?|nov\.?|déc\.?)/i,
+        monthsRegex$6 =
+            /(janv\.?|févr\.?|mars|avr\.?|mai|juin|juil\.?|août|sept\.?|oct\.?|nov\.?|déc\.?|janvier|février|mars|avril|mai|juin|juillet|août|septembre|octobre|novembre|décembre)/i,
+        monthsParse$6 = [
+            /^janv/i,
+            /^févr/i,
+            /^mars/i,
+            /^avr/i,
+            /^mai/i,
+            /^juin/i,
+            /^juil/i,
+            /^août/i,
+            /^sept/i,
+            /^oct/i,
+            /^nov/i,
+            /^déc/i,
+        ];
+
+    moment.defineLocale('fr', {
+        months: 'janvier_février_mars_avril_mai_juin_juillet_août_septembre_octobre_novembre_décembre'.split(
+            '_'
+        ),
+        monthsShort:
+            'janv._févr._mars_avr._mai_juin_juil._août_sept._oct._nov._déc.'.split(
+                '_'
+            ),
+        monthsRegex: monthsRegex$6,
+        monthsShortRegex: monthsRegex$6,
+        monthsStrictRegex: monthsStrictRegex$1,
+        monthsShortStrictRegex: monthsShortStrictRegex$1,
+        monthsParse: monthsParse$6,
+        longMonthsParse: monthsParse$6,
+        shortMonthsParse: monthsParse$6,
+        weekdays: 'dimanche_lundi_mardi_mercredi_jeudi_vendredi_samedi'.split('_'),
+        weekdaysShort: 'dim._lun._mar._mer._jeu._ven._sam.'.split('_'),
+        weekdaysMin: 'di_lu_ma_me_je_ve_sa'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Aujourd’hui à] LT',
+            nextDay: '[Demain à] LT',
+            nextWeek: 'dddd [à] LT',
+            lastDay: '[Hier à] LT',
+            lastWeek: 'dddd [dernier à] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'dans %s',
+            past: 'il y a %s',
+            s: 'quelques secondes',
+            ss: '%d secondes',
+            m: 'une minute',
+            mm: '%d minutes',
+            h: 'une heure',
+            hh: '%d heures',
+            d: 'un jour',
+            dd: '%d jours',
+            w: 'une semaine',
+            ww: '%d semaines',
+            M: 'un mois',
+            MM: '%d mois',
+            y: 'un an',
+            yy: '%d ans',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(er|)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                // TODO: Return 'e' when day of month > 1. Move this case inside
+                // block for masculine words below.
+                // See https://github.com/moment/moment/issues/3375
+                case 'D':
+                    return number + (number === 1 ? 'er' : '');
+
+                // Words with masculine grammatical gender: mois, trimestre, jour
+                default:
+                case 'M':
+                case 'Q':
+                case 'DDD':
+                case 'd':
+                    return number + (number === 1 ? 'er' : 'e');
+
+                // Words with feminine grammatical gender: semaine
+                case 'w':
+                case 'W':
+                    return number + (number === 1 ? 're' : 'e');
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var monthsShortWithDots =
+            'jan._feb._mrt._apr._mai_jun._jul._aug._sep._okt._nov._des.'.split('_'),
+        monthsShortWithoutDots =
+            'jan_feb_mrt_apr_mai_jun_jul_aug_sep_okt_nov_des'.split('_');
+
+    moment.defineLocale('fy', {
+        months: 'jannewaris_febrewaris_maart_april_maaie_juny_july_augustus_septimber_oktober_novimber_desimber'.split(
+            '_'
+        ),
+        monthsShort: function (m, format) {
+            if (!m) {
+                return monthsShortWithDots;
+            } else if (/-MMM-/.test(format)) {
+                return monthsShortWithoutDots[m.month()];
+            } else {
+                return monthsShortWithDots[m.month()];
+            }
+        },
+        monthsParseExact: true,
+        weekdays: 'snein_moandei_tiisdei_woansdei_tongersdei_freed_sneon'.split(
+            '_'
+        ),
+        weekdaysShort: 'si._mo._ti._wo._to._fr._so.'.split('_'),
+        weekdaysMin: 'Si_Mo_Ti_Wo_To_Fr_So'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD-MM-YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[hjoed om] LT',
+            nextDay: '[moarn om] LT',
+            nextWeek: 'dddd [om] LT',
+            lastDay: '[juster om] LT',
+            lastWeek: '[ôfrûne] dddd [om] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'oer %s',
+            past: '%s lyn',
+            s: 'in pear sekonden',
+            ss: '%d sekonden',
+            m: 'ien minút',
+            mm: '%d minuten',
+            h: 'ien oere',
+            hh: '%d oeren',
+            d: 'ien dei',
+            dd: '%d dagen',
+            M: 'ien moanne',
+            MM: '%d moannen',
+            y: 'ien jier',
+            yy: '%d jierren',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
+        ordinal: function (number) {
+            return (
+                number +
+                (number === 1 || number === 8 || number >= 20 ? 'ste' : 'de')
+            );
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var months$5 = [
+            'Eanáir',
+            'Feabhra',
+            'Márta',
+            'Aibreán',
+            'Bealtaine',
+            'Meitheamh',
+            'Iúil',
+            'Lúnasa',
+            'Meán Fómhair',
+            'Deireadh Fómhair',
+            'Samhain',
+            'Nollaig',
+        ],
+        monthsShort$5 = [
+            'Ean',
+            'Feabh',
+            'Márt',
+            'Aib',
+            'Beal',
+            'Meith',
+            'Iúil',
+            'Lún',
+            'M.F.',
+            'D.F.',
+            'Samh',
+            'Noll',
+        ],
+        weekdays$1 = [
+            'Dé Domhnaigh',
+            'Dé Luain',
+            'Dé Máirt',
+            'Dé Céadaoin',
+            'Déardaoin',
+            'Dé hAoine',
+            'Dé Sathairn',
+        ],
+        weekdaysShort = ['Domh', 'Luan', 'Máirt', 'Céad', 'Déar', 'Aoine', 'Sath'],
+        weekdaysMin = ['Do', 'Lu', 'Má', 'Cé', 'Dé', 'A', 'Sa'];
+
+    moment.defineLocale('ga', {
+        months: months$5,
+        monthsShort: monthsShort$5,
+        monthsParseExact: true,
+        weekdays: weekdays$1,
+        weekdaysShort: weekdaysShort,
+        weekdaysMin: weekdaysMin,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Inniu ag] LT',
+            nextDay: '[Amárach ag] LT',
+            nextWeek: 'dddd [ag] LT',
+            lastDay: '[Inné ag] LT',
+            lastWeek: 'dddd [seo caite] [ag] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'i %s',
+            past: '%s ó shin',
+            s: 'cúpla soicind',
+            ss: '%d soicind',
+            m: 'nóiméad',
+            mm: '%d nóiméad',
+            h: 'uair an chloig',
+            hh: '%d uair an chloig',
+            d: 'lá',
+            dd: '%d lá',
+            M: 'mí',
+            MM: '%d míonna',
+            y: 'bliain',
+            yy: '%d bliain',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(d|na|mh)/,
+        ordinal: function (number) {
+            var output = number === 1 ? 'd' : number % 10 === 2 ? 'na' : 'mh';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var months$6 = [
+            'Am Faoilleach',
+            'An Gearran',
+            'Am Màrt',
+            'An Giblean',
+            'An Cèitean',
+            'An t-Ògmhios',
+            'An t-Iuchar',
+            'An Lùnastal',
+            'An t-Sultain',
+            'An Dàmhair',
+            'An t-Samhain',
+            'An Dùbhlachd',
+        ],
+        monthsShort$6 = [
+            'Faoi',
+            'Gear',
+            'Màrt',
+            'Gibl',
+            'Cèit',
+            'Ògmh',
+            'Iuch',
+            'Lùn',
+            'Sult',
+            'Dàmh',
+            'Samh',
+            'Dùbh',
+        ],
+        weekdays$2 = [
+            'Didòmhnaich',
+            'Diluain',
+            'Dimàirt',
+            'Diciadain',
+            'Diardaoin',
+            'Dihaoine',
+            'Disathairne',
+        ],
+        weekdaysShort$1 = ['Did', 'Dil', 'Dim', 'Dic', 'Dia', 'Dih', 'Dis'],
+        weekdaysMin$1 = ['Dò', 'Lu', 'Mà', 'Ci', 'Ar', 'Ha', 'Sa'];
+
+    moment.defineLocale('gd', {
+        months: months$6,
+        monthsShort: monthsShort$6,
+        monthsParseExact: true,
+        weekdays: weekdays$2,
+        weekdaysShort: weekdaysShort$1,
+        weekdaysMin: weekdaysMin$1,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[An-diugh aig] LT',
+            nextDay: '[A-màireach aig] LT',
+            nextWeek: 'dddd [aig] LT',
+            lastDay: '[An-dè aig] LT',
+            lastWeek: 'dddd [seo chaidh] [aig] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'ann an %s',
+            past: 'bho chionn %s',
+            s: 'beagan diogan',
+            ss: '%d diogan',
+            m: 'mionaid',
+            mm: '%d mionaidean',
+            h: 'uair',
+            hh: '%d uairean',
+            d: 'latha',
+            dd: '%d latha',
+            M: 'mìos',
+            MM: '%d mìosan',
+            y: 'bliadhna',
+            yy: '%d bliadhna',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(d|na|mh)/,
+        ordinal: function (number) {
+            var output = number === 1 ? 'd' : number % 10 === 2 ? 'na' : 'mh';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('gl', {
+        months: 'xaneiro_febreiro_marzo_abril_maio_xuño_xullo_agosto_setembro_outubro_novembro_decembro'.split(
+            '_'
+        ),
+        monthsShort:
+            'xan._feb._mar._abr._mai._xuñ._xul._ago._set._out._nov._dec.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'domingo_luns_martes_mércores_xoves_venres_sábado'.split('_'),
+        weekdaysShort: 'dom._lun._mar._mér._xov._ven._sáb.'.split('_'),
+        weekdaysMin: 'do_lu_ma_mé_xo_ve_sá'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D [de] MMMM [de] YYYY',
+            LLL: 'D [de] MMMM [de] YYYY H:mm',
+            LLLL: 'dddd, D [de] MMMM [de] YYYY H:mm',
+        },
+        calendar: {
+            sameDay: function () {
+                return '[hoxe ' + (this.hours() !== 1 ? 'ás' : 'á') + '] LT';
+            },
+            nextDay: function () {
+                return '[mañá ' + (this.hours() !== 1 ? 'ás' : 'á') + '] LT';
+            },
+            nextWeek: function () {
+                return 'dddd [' + (this.hours() !== 1 ? 'ás' : 'a') + '] LT';
+            },
+            lastDay: function () {
+                return '[onte ' + (this.hours() !== 1 ? 'á' : 'a') + '] LT';
+            },
+            lastWeek: function () {
+                return (
+                    '[o] dddd [pasado ' + (this.hours() !== 1 ? 'ás' : 'a') + '] LT'
+                );
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: function (str) {
+                if (str.indexOf('un') === 0) {
+                    return 'n' + str;
+                }
+                return 'en ' + str;
+            },
+            past: 'hai %s',
+            s: 'uns segundos',
+            ss: '%d segundos',
+            m: 'un minuto',
+            mm: '%d minutos',
+            h: 'unha hora',
+            hh: '%d horas',
+            d: 'un día',
+            dd: '%d días',
+            M: 'un mes',
+            MM: '%d meses',
+            y: 'un ano',
+            yy: '%d anos',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function processRelativeTime$5(number, withoutSuffix, key, isFuture) {
+        var format = {
+            s: ['थोडया सॅकंडांनी', 'थोडे सॅकंड'],
+            ss: [number + ' सॅकंडांनी', number + ' सॅकंड'],
+            m: ['एका मिणटान', 'एक मिनूट'],
+            mm: [number + ' मिणटांनी', number + ' मिणटां'],
+            h: ['एका वरान', 'एक वर'],
+            hh: [number + ' वरांनी', number + ' वरां'],
+            d: ['एका दिसान', 'एक दीस'],
+            dd: [number + ' दिसांनी', number + ' दीस'],
+            M: ['एका म्हयन्यान', 'एक म्हयनो'],
+            MM: [number + ' म्हयन्यानी', number + ' म्हयने'],
+            y: ['एका वर्सान', 'एक वर्स'],
+            yy: [number + ' वर्सांनी', number + ' वर्सां'],
+        };
+        return isFuture ? format[key][0] : format[key][1];
+    }
+
+    moment.defineLocale('gom-deva', {
+        months: {
+            standalone:
+                'जानेवारी_फेब्रुवारी_मार्च_एप्रील_मे_जून_जुलय_ऑगस्ट_सप्टेंबर_ऑक्टोबर_नोव्हेंबर_डिसेंबर'.split(
+                    '_'
+                ),
+            format: 'जानेवारीच्या_फेब्रुवारीच्या_मार्चाच्या_एप्रीलाच्या_मेयाच्या_जूनाच्या_जुलयाच्या_ऑगस्टाच्या_सप्टेंबराच्या_ऑक्टोबराच्या_नोव्हेंबराच्या_डिसेंबराच्या'.split(
+                '_'
+            ),
+            isFormat: /MMMM(\s)+D[oD]?/,
+        },
+        monthsShort:
+            'जाने._फेब्रु._मार्च_एप्री._मे_जून_जुल._ऑग._सप्टें._ऑक्टो._नोव्हें._डिसें.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'आयतार_सोमार_मंगळार_बुधवार_बिरेस्तार_सुक्रार_शेनवार'.split('_'),
+        weekdaysShort: 'आयत._सोम._मंगळ._बुध._ब्रेस्त._सुक्र._शेन.'.split('_'),
+        weekdaysMin: 'आ_सो_मं_बु_ब्रे_सु_शे'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'A h:mm [वाजतां]',
+            LTS: 'A h:mm:ss [वाजतां]',
+            L: 'DD-MM-YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY A h:mm [वाजतां]',
+            LLLL: 'dddd, MMMM Do, YYYY, A h:mm [वाजतां]',
+            llll: 'ddd, D MMM YYYY, A h:mm [वाजतां]',
+        },
+        calendar: {
+            sameDay: '[आयज] LT',
+            nextDay: '[फाल्यां] LT',
+            nextWeek: '[फुडलो] dddd[,] LT',
+            lastDay: '[काल] LT',
+            lastWeek: '[फाटलो] dddd[,] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s',
+            past: '%s आदीं',
+            s: processRelativeTime$5,
+            ss: processRelativeTime$5,
+            m: processRelativeTime$5,
+            mm: processRelativeTime$5,
+            h: processRelativeTime$5,
+            hh: processRelativeTime$5,
+            d: processRelativeTime$5,
+            dd: processRelativeTime$5,
+            M: processRelativeTime$5,
+            MM: processRelativeTime$5,
+            y: processRelativeTime$5,
+            yy: processRelativeTime$5,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(वेर)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                // the ordinal 'वेर' only applies to day of the month
+                case 'D':
+                    return number + 'वेर';
+                default:
+                case 'M':
+                case 'Q':
+                case 'DDD':
+                case 'd':
+                case 'w':
+                case 'W':
+                    return number;
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week
+            doy: 3, // The week that contains Jan 4th is the first week of the year (7 + 0 - 4)
+        },
+        meridiemParse: /राती|सकाळीं|दनपारां|सांजे/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'राती') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'सकाळीं') {
+                return hour;
+            } else if (meridiem === 'दनपारां') {
+                return hour > 12 ? hour : hour + 12;
+            } else if (meridiem === 'सांजे') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'राती';
+            } else if (hour < 12) {
+                return 'सकाळीं';
+            } else if (hour < 16) {
+                return 'दनपारां';
+            } else if (hour < 20) {
+                return 'सांजे';
+            } else {
+                return 'राती';
+            }
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function processRelativeTime$6(number, withoutSuffix, key, isFuture) {
+        var format = {
+            s: ['thoddea sekondamni', 'thodde sekond'],
+            ss: [number + ' sekondamni', number + ' sekond'],
+            m: ['eka mintan', 'ek minut'],
+            mm: [number + ' mintamni', number + ' mintam'],
+            h: ['eka voran', 'ek vor'],
+            hh: [number + ' voramni', number + ' voram'],
+            d: ['eka disan', 'ek dis'],
+            dd: [number + ' disamni', number + ' dis'],
+            M: ['eka mhoinean', 'ek mhoino'],
+            MM: [number + ' mhoineamni', number + ' mhoine'],
+            y: ['eka vorsan', 'ek voros'],
+            yy: [number + ' vorsamni', number + ' vorsam'],
+        };
+        return isFuture ? format[key][0] : format[key][1];
+    }
+
+    moment.defineLocale('gom-latn', {
+        months: {
+            standalone:
+                'Janer_Febrer_Mars_Abril_Mai_Jun_Julai_Agost_Setembr_Otubr_Novembr_Dezembr'.split(
+                    '_'
+                ),
+            format: 'Janerachea_Febrerachea_Marsachea_Abrilachea_Maiachea_Junachea_Julaiachea_Agostachea_Setembrachea_Otubrachea_Novembrachea_Dezembrachea'.split(
+                '_'
+            ),
+            isFormat: /MMMM(\s)+D[oD]?/,
+        },
+        monthsShort:
+            'Jan._Feb._Mars_Abr._Mai_Jun_Jul._Ago._Set._Otu._Nov._Dez.'.split('_'),
+        monthsParseExact: true,
+        weekdays: "Aitar_Somar_Mongllar_Budhvar_Birestar_Sukrar_Son'var".split('_'),
+        weekdaysShort: 'Ait._Som._Mon._Bud._Bre._Suk._Son.'.split('_'),
+        weekdaysMin: 'Ai_Sm_Mo_Bu_Br_Su_Sn'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'A h:mm [vazta]',
+            LTS: 'A h:mm:ss [vazta]',
+            L: 'DD-MM-YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY A h:mm [vazta]',
+            LLLL: 'dddd, MMMM Do, YYYY, A h:mm [vazta]',
+            llll: 'ddd, D MMM YYYY, A h:mm [vazta]',
+        },
+        calendar: {
+            sameDay: '[Aiz] LT',
+            nextDay: '[Faleam] LT',
+            nextWeek: '[Fuddlo] dddd[,] LT',
+            lastDay: '[Kal] LT',
+            lastWeek: '[Fattlo] dddd[,] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s',
+            past: '%s adim',
+            s: processRelativeTime$6,
+            ss: processRelativeTime$6,
+            m: processRelativeTime$6,
+            mm: processRelativeTime$6,
+            h: processRelativeTime$6,
+            hh: processRelativeTime$6,
+            d: processRelativeTime$6,
+            dd: processRelativeTime$6,
+            M: processRelativeTime$6,
+            MM: processRelativeTime$6,
+            y: processRelativeTime$6,
+            yy: processRelativeTime$6,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(er)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                // the ordinal 'er' only applies to day of the month
+                case 'D':
+                    return number + 'er';
+                default:
+                case 'M':
+                case 'Q':
+                case 'DDD':
+                case 'd':
+                case 'w':
+                case 'W':
+                    return number;
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week
+            doy: 3, // The week that contains Jan 4th is the first week of the year (7 + 0 - 4)
+        },
+        meridiemParse: /rati|sokallim|donparam|sanje/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'rati') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'sokallim') {
+                return hour;
+            } else if (meridiem === 'donparam') {
+                return hour > 12 ? hour : hour + 12;
+            } else if (meridiem === 'sanje') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'rati';
+            } else if (hour < 12) {
+                return 'sokallim';
+            } else if (hour < 16) {
+                return 'donparam';
+            } else if (hour < 20) {
+                return 'sanje';
+            } else {
+                return 'rati';
+            }
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$8 = {
+            1: '૧',
+            2: '૨',
+            3: '૩',
+            4: '૪',
+            5: '૫',
+            6: '૬',
+            7: '૭',
+            8: '૮',
+            9: '૯',
+            0: '૦',
+        },
+        numberMap$7 = {
+            '૧': '1',
+            '૨': '2',
+            '૩': '3',
+            '૪': '4',
+            '૫': '5',
+            '૬': '6',
+            '૭': '7',
+            '૮': '8',
+            '૯': '9',
+            '૦': '0',
+        };
+
+    moment.defineLocale('gu', {
+        months: 'જાન્યુઆરી_ફેબ્રુઆરી_માર્ચ_એપ્રિલ_મે_જૂન_જુલાઈ_ઑગસ્ટ_સપ્ટેમ્બર_ઑક્ટ્બર_નવેમ્બર_ડિસેમ્બર'.split(
+            '_'
+        ),
+        monthsShort:
+            'જાન્યુ._ફેબ્રુ._માર્ચ_એપ્રિ._મે_જૂન_જુલા._ઑગ._સપ્ટે._ઑક્ટ્._નવે._ડિસે.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'રવિવાર_સોમવાર_મંગળવાર_બુધ્વાર_ગુરુવાર_શુક્રવાર_શનિવાર'.split(
+            '_'
+        ),
+        weekdaysShort: 'રવિ_સોમ_મંગળ_બુધ્_ગુરુ_શુક્ર_શનિ'.split('_'),
+        weekdaysMin: 'ર_સો_મં_બુ_ગુ_શુ_શ'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm વાગ્યે',
+            LTS: 'A h:mm:ss વાગ્યે',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm વાગ્યે',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm વાગ્યે',
+        },
+        calendar: {
+            sameDay: '[આજ] LT',
+            nextDay: '[કાલે] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[ગઇકાલે] LT',
+            lastWeek: '[પાછલા] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s મા',
+            past: '%s પહેલા',
+            s: 'અમુક પળો',
+            ss: '%d સેકંડ',
+            m: 'એક મિનિટ',
+            mm: '%d મિનિટ',
+            h: 'એક કલાક',
+            hh: '%d કલાક',
+            d: 'એક દિવસ',
+            dd: '%d દિવસ',
+            M: 'એક મહિનો',
+            MM: '%d મહિનો',
+            y: 'એક વર્ષ',
+            yy: '%d વર્ષ',
+        },
+        preparse: function (string) {
+            return string.replace(/[૧૨૩૪૫૬૭૮૯૦]/g, function (match) {
+                return numberMap$7[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap$8[match];
+            });
+        },
+        // Gujarati notation for meridiems are quite fuzzy in practice. While there exists
+        // a rigid notion of a 'Pahar' it is not used as rigidly in modern Gujarati.
+        meridiemParse: /રાત|બપોર|સવાર|સાંજ/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'રાત') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'સવાર') {
+                return hour;
+            } else if (meridiem === 'બપોર') {
+                return hour >= 10 ? hour : hour + 12;
+            } else if (meridiem === 'સાંજ') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'રાત';
+            } else if (hour < 10) {
+                return 'સવાર';
+            } else if (hour < 17) {
+                return 'બપોર';
+            } else if (hour < 20) {
+                return 'સાંજ';
+            } else {
+                return 'રાત';
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('he', {
+        months: 'ינואר_פברואר_מרץ_אפריל_מאי_יוני_יולי_אוגוסט_ספטמבר_אוקטובר_נובמבר_דצמבר'.split(
+            '_'
+        ),
+        monthsShort:
+            'ינו׳_פבר׳_מרץ_אפר׳_מאי_יוני_יולי_אוג׳_ספט׳_אוק׳_נוב׳_דצמ׳'.split('_'),
+        weekdays: 'ראשון_שני_שלישי_רביעי_חמישי_שישי_שבת'.split('_'),
+        weekdaysShort: 'א׳_ב׳_ג׳_ד׳_ה׳_ו׳_ש׳'.split('_'),
+        weekdaysMin: 'א_ב_ג_ד_ה_ו_ש'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D [ב]MMMM YYYY',
+            LLL: 'D [ב]MMMM YYYY HH:mm',
+            LLLL: 'dddd, D [ב]MMMM YYYY HH:mm',
+            l: 'D/M/YYYY',
+            ll: 'D MMM YYYY',
+            lll: 'D MMM YYYY HH:mm',
+            llll: 'ddd, D MMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[היום ב־]LT',
+            nextDay: '[מחר ב־]LT',
+            nextWeek: 'dddd [בשעה] LT',
+            lastDay: '[אתמול ב־]LT',
+            lastWeek: '[ביום] dddd [האחרון בשעה] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'בעוד %s',
+            past: 'לפני %s',
+            s: 'מספר שניות',
+            ss: '%d שניות',
+            m: 'דקה',
+            mm: '%d דקות',
+            h: 'שעה',
+            hh: function (number) {
+                if (number === 2) {
+                    return 'שעתיים';
+                }
+                return number + ' שעות';
+            },
+            d: 'יום',
+            dd: function (number) {
+                if (number === 2) {
+                    return 'יומיים';
+                }
+                return number + ' ימים';
+            },
+            M: 'חודש',
+            MM: function (number) {
+                if (number === 2) {
+                    return 'חודשיים';
+                }
+                return number + ' חודשים';
+            },
+            y: 'שנה',
+            yy: function (number) {
+                if (number === 2) {
+                    return 'שנתיים';
+                } else if (number % 10 === 0 && number !== 10) {
+                    return number + ' שנה';
+                }
+                return number + ' שנים';
+            },
+        },
+        meridiemParse:
+            /אחה"צ|לפנה"צ|אחרי הצהריים|לפני הצהריים|לפנות בוקר|בבוקר|בערב/i,
+        isPM: function (input) {
+            return /^(אחה"צ|אחרי הצהריים|בערב)$/.test(input);
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 5) {
+                return 'לפנות בוקר';
+            } else if (hour < 10) {
+                return 'בבוקר';
+            } else if (hour < 12) {
+                return isLower ? 'לפנה"צ' : 'לפני הצהריים';
+            } else if (hour < 18) {
+                return isLower ? 'אחה"צ' : 'אחרי הצהריים';
+            } else {
+                return 'בערב';
+            }
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$9 = {
+            1: '१',
+            2: '२',
+            3: '३',
+            4: '४',
+            5: '५',
+            6: '६',
+            7: '७',
+            8: '८',
+            9: '९',
+            0: '०',
+        },
+        numberMap$8 = {
+            '१': '1',
+            '२': '2',
+            '३': '3',
+            '४': '4',
+            '५': '5',
+            '६': '6',
+            '७': '7',
+            '८': '8',
+            '९': '9',
+            '०': '0',
+        },
+        monthsParse$7 = [
+            /^जन/i,
+            /^फ़र|फर/i,
+            /^मार्च/i,
+            /^अप्रै/i,
+            /^मई/i,
+            /^जून/i,
+            /^जुल/i,
+            /^अग/i,
+            /^सितं|सित/i,
+            /^अक्टू/i,
+            /^नव|नवं/i,
+            /^दिसं|दिस/i,
+        ],
+        shortMonthsParse = [
+            /^जन/i,
+            /^फ़र/i,
+            /^मार्च/i,
+            /^अप्रै/i,
+            /^मई/i,
+            /^जून/i,
+            /^जुल/i,
+            /^अग/i,
+            /^सित/i,
+            /^अक्टू/i,
+            /^नव/i,
+            /^दिस/i,
+        ];
+
+    moment.defineLocale('hi', {
+        months: {
+            format: 'जनवरी_फ़रवरी_मार्च_अप्रैल_मई_जून_जुलाई_अगस्त_सितम्बर_अक्टूबर_नवम्बर_दिसम्बर'.split(
+                '_'
+            ),
+            standalone:
+                'जनवरी_फरवरी_मार्च_अप्रैल_मई_जून_जुलाई_अगस्त_सितंबर_अक्टूबर_नवंबर_दिसंबर'.split(
+                    '_'
+                ),
+        },
+        monthsShort:
+            'जन._फ़र._मार्च_अप्रै._मई_जून_जुल._अग._सित._अक्टू._नव._दिस.'.split('_'),
+        weekdays: 'रविवार_सोमवार_मंगलवार_बुधवार_गुरूवार_शुक्रवार_शनिवार'.split('_'),
+        weekdaysShort: 'रवि_सोम_मंगल_बुध_गुरू_शुक्र_शनि'.split('_'),
+        weekdaysMin: 'र_सो_मं_बु_गु_शु_श'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm बजे',
+            LTS: 'A h:mm:ss बजे',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm बजे',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm बजे',
+        },
+
+        monthsParse: monthsParse$7,
+        longMonthsParse: monthsParse$7,
+        shortMonthsParse: shortMonthsParse,
+
+        monthsRegex:
+            /^(जनवरी|जन\.?|फ़रवरी|फरवरी|फ़र\.?|मार्च?|अप्रैल|अप्रै\.?|मई?|जून?|जुलाई|जुल\.?|अगस्त|अग\.?|सितम्बर|सितंबर|सित\.?|अक्टूबर|अक्टू\.?|नवम्बर|नवंबर|नव\.?|दिसम्बर|दिसंबर|दिस\.?)/i,
+
+        monthsShortRegex:
+            /^(जनवरी|जन\.?|फ़रवरी|फरवरी|फ़र\.?|मार्च?|अप्रैल|अप्रै\.?|मई?|जून?|जुलाई|जुल\.?|अगस्त|अग\.?|सितम्बर|सितंबर|सित\.?|अक्टूबर|अक्टू\.?|नवम्बर|नवंबर|नव\.?|दिसम्बर|दिसंबर|दिस\.?)/i,
+
+        monthsStrictRegex:
+            /^(जनवरी?|फ़रवरी|फरवरी?|मार्च?|अप्रैल?|मई?|जून?|जुलाई?|अगस्त?|सितम्बर|सितंबर|सित?\.?|अक्टूबर|अक्टू\.?|नवम्बर|नवंबर?|दिसम्बर|दिसंबर?)/i,
+
+        monthsShortStrictRegex:
+            /^(जन\.?|फ़र\.?|मार्च?|अप्रै\.?|मई?|जून?|जुल\.?|अग\.?|सित\.?|अक्टू\.?|नव\.?|दिस\.?)/i,
+
+        calendar: {
+            sameDay: '[आज] LT',
+            nextDay: '[कल] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[कल] LT',
+            lastWeek: '[पिछले] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s में',
+            past: '%s पहले',
+            s: 'कुछ ही क्षण',
+            ss: '%d सेकंड',
+            m: 'एक मिनट',
+            mm: '%d मिनट',
+            h: 'एक घंटा',
+            hh: '%d घंटे',
+            d: 'एक दिन',
+            dd: '%d दिन',
+            M: 'एक महीने',
+            MM: '%d महीने',
+            y: 'एक वर्ष',
+            yy: '%d वर्ष',
+        },
+        preparse: function (string) {
+            return string.replace(/[१२३४५६७८९०]/g, function (match) {
+                return numberMap$8[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap$9[match];
+            });
+        },
+        // Hindi notation for meridiems are quite fuzzy in practice. While there exists
+        // a rigid notion of a 'Pahar' it is not used as rigidly in modern Hindi.
+        meridiemParse: /रात|सुबह|दोपहर|शाम/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'रात') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'सुबह') {
+                return hour;
+            } else if (meridiem === 'दोपहर') {
+                return hour >= 10 ? hour : hour + 12;
+            } else if (meridiem === 'शाम') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'रात';
+            } else if (hour < 10) {
+                return 'सुबह';
+            } else if (hour < 17) {
+                return 'दोपहर';
+            } else if (hour < 20) {
+                return 'शाम';
+            } else {
+                return 'रात';
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function translate$3(number, withoutSuffix, key) {
+        var result = number + ' ';
+        switch (key) {
+            case 'ss':
+                if (number === 1) {
+                    result += 'sekunda';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'sekunde';
+                } else {
+                    result += 'sekundi';
+                }
+                return result;
+            case 'm':
+                return withoutSuffix ? 'jedna minuta' : 'jedne minute';
+            case 'mm':
+                if (number === 1) {
+                    result += 'minuta';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'minute';
+                } else {
+                    result += 'minuta';
+                }
+                return result;
+            case 'h':
+                return withoutSuffix ? 'jedan sat' : 'jednog sata';
+            case 'hh':
+                if (number === 1) {
+                    result += 'sat';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'sata';
+                } else {
+                    result += 'sati';
+                }
+                return result;
+            case 'dd':
+                if (number === 1) {
+                    result += 'dan';
+                } else {
+                    result += 'dana';
+                }
+                return result;
+            case 'MM':
+                if (number === 1) {
+                    result += 'mjesec';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'mjeseca';
+                } else {
+                    result += 'mjeseci';
+                }
+                return result;
+            case 'yy':
+                if (number === 1) {
+                    result += 'godina';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'godine';
+                } else {
+                    result += 'godina';
+                }
+                return result;
+        }
+    }
+
+    moment.defineLocale('hr', {
+        months: {
+            format: 'siječnja_veljače_ožujka_travnja_svibnja_lipnja_srpnja_kolovoza_rujna_listopada_studenoga_prosinca'.split(
+                '_'
+            ),
+            standalone:
+                'siječanj_veljača_ožujak_travanj_svibanj_lipanj_srpanj_kolovoz_rujan_listopad_studeni_prosinac'.split(
+                    '_'
+                ),
+        },
+        monthsShort:
+            'sij._velj._ožu._tra._svi._lip._srp._kol._ruj._lis._stu._pro.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'nedjelja_ponedjeljak_utorak_srijeda_četvrtak_petak_subota'.split(
+            '_'
+        ),
+        weekdaysShort: 'ned._pon._uto._sri._čet._pet._sub.'.split('_'),
+        weekdaysMin: 'ne_po_ut_sr_če_pe_su'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'Do MMMM YYYY',
+            LLL: 'Do MMMM YYYY H:mm',
+            LLLL: 'dddd, Do MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[danas u] LT',
+            nextDay: '[sutra u] LT',
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[u] [nedjelju] [u] LT';
+                    case 3:
+                        return '[u] [srijedu] [u] LT';
+                    case 6:
+                        return '[u] [subotu] [u] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[u] dddd [u] LT';
+                }
+            },
+            lastDay: '[jučer u] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[prošlu] [nedjelju] [u] LT';
+                    case 3:
+                        return '[prošlu] [srijedu] [u] LT';
+                    case 6:
+                        return '[prošle] [subote] [u] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[prošli] dddd [u] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'za %s',
+            past: 'prije %s',
+            s: 'par sekundi',
+            ss: translate$3,
+            m: translate$3,
+            mm: translate$3,
+            h: translate$3,
+            hh: translate$3,
+            d: 'dan',
+            dd: translate$3,
+            M: 'mjesec',
+            MM: translate$3,
+            y: 'godinu',
+            yy: translate$3,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var weekEndings =
+        'vasárnap hétfőn kedden szerdán csütörtökön pénteken szombaton'.split(' ');
+    function translate$4(number, withoutSuffix, key, isFuture) {
+        var num = number;
+        switch (key) {
+            case 's':
+                return isFuture || withoutSuffix
+                    ? 'néhány másodperc'
+                    : 'néhány másodperce';
+            case 'ss':
+                return num + (isFuture || withoutSuffix)
+                    ? ' másodperc'
+                    : ' másodperce';
+            case 'm':
+                return 'egy' + (isFuture || withoutSuffix ? ' perc' : ' perce');
+            case 'mm':
+                return num + (isFuture || withoutSuffix ? ' perc' : ' perce');
+            case 'h':
+                return 'egy' + (isFuture || withoutSuffix ? ' óra' : ' órája');
+            case 'hh':
+                return num + (isFuture || withoutSuffix ? ' óra' : ' órája');
+            case 'd':
+                return 'egy' + (isFuture || withoutSuffix ? ' nap' : ' napja');
+            case 'dd':
+                return num + (isFuture || withoutSuffix ? ' nap' : ' napja');
+            case 'M':
+                return 'egy' + (isFuture || withoutSuffix ? ' hónap' : ' hónapja');
+            case 'MM':
+                return num + (isFuture || withoutSuffix ? ' hónap' : ' hónapja');
+            case 'y':
+                return 'egy' + (isFuture || withoutSuffix ? ' év' : ' éve');
+            case 'yy':
+                return num + (isFuture || withoutSuffix ? ' év' : ' éve');
+        }
+        return '';
+    }
+    function week(isFuture) {
+        return (
+            (isFuture ? '' : '[múlt] ') +
+            '[' +
+            weekEndings[this.day()] +
+            '] LT[-kor]'
+        );
+    }
+
+    moment.defineLocale('hu', {
+        months: 'január_február_március_április_május_június_július_augusztus_szeptember_október_november_december'.split(
+            '_'
+        ),
+        monthsShort:
+            'jan._feb._márc._ápr._máj._jún._júl._aug._szept._okt._nov._dec.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'vasárnap_hétfő_kedd_szerda_csütörtök_péntek_szombat'.split('_'),
+        weekdaysShort: 'vas_hét_kedd_sze_csüt_pén_szo'.split('_'),
+        weekdaysMin: 'v_h_k_sze_cs_p_szo'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'YYYY.MM.DD.',
+            LL: 'YYYY. MMMM D.',
+            LLL: 'YYYY. MMMM D. H:mm',
+            LLLL: 'YYYY. MMMM D., dddd H:mm',
+        },
+        meridiemParse: /de|du/i,
+        isPM: function (input) {
+            return input.charAt(1).toLowerCase() === 'u';
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 12) {
+                return isLower === true ? 'de' : 'DE';
+            } else {
+                return isLower === true ? 'du' : 'DU';
+            }
+        },
+        calendar: {
+            sameDay: '[ma] LT[-kor]',
+            nextDay: '[holnap] LT[-kor]',
+            nextWeek: function () {
+                return week.call(this, true);
+            },
+            lastDay: '[tegnap] LT[-kor]',
+            lastWeek: function () {
+                return week.call(this, false);
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s múlva',
+            past: '%s',
+            s: translate$4,
+            ss: translate$4,
+            m: translate$4,
+            mm: translate$4,
+            h: translate$4,
+            hh: translate$4,
+            d: translate$4,
+            dd: translate$4,
+            M: translate$4,
+            MM: translate$4,
+            y: translate$4,
+            yy: translate$4,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('hy-am', {
+        months: {
+            format: 'հունվարի_փետրվարի_մարտի_ապրիլի_մայիսի_հունիսի_հուլիսի_օգոստոսի_սեպտեմբերի_հոկտեմբերի_նոյեմբերի_դեկտեմբերի'.split(
+                '_'
+            ),
+            standalone:
+                'հունվար_փետրվար_մարտ_ապրիլ_մայիս_հունիս_հուլիս_օգոստոս_սեպտեմբեր_հոկտեմբեր_նոյեմբեր_դեկտեմբեր'.split(
+                    '_'
+                ),
+        },
+        monthsShort: 'հնվ_փտր_մրտ_ապր_մյս_հնս_հլս_օգս_սպտ_հկտ_նմբ_դկտ'.split('_'),
+        weekdays:
+            'կիրակի_երկուշաբթի_երեքշաբթի_չորեքշաբթի_հինգշաբթի_ուրբաթ_շաբաթ'.split(
+                '_'
+            ),
+        weekdaysShort: 'կրկ_երկ_երք_չրք_հնգ_ուրբ_շբթ'.split('_'),
+        weekdaysMin: 'կրկ_երկ_երք_չրք_հնգ_ուրբ_շբթ'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY թ.',
+            LLL: 'D MMMM YYYY թ., HH:mm',
+            LLLL: 'dddd, D MMMM YYYY թ., HH:mm',
+        },
+        calendar: {
+            sameDay: '[այսօր] LT',
+            nextDay: '[վաղը] LT',
+            lastDay: '[երեկ] LT',
+            nextWeek: function () {
+                return 'dddd [օրը ժամը] LT';
+            },
+            lastWeek: function () {
+                return '[անցած] dddd [օրը ժամը] LT';
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s հետո',
+            past: '%s առաջ',
+            s: 'մի քանի վայրկյան',
+            ss: '%d վայրկյան',
+            m: 'րոպե',
+            mm: '%d րոպե',
+            h: 'ժամ',
+            hh: '%d ժամ',
+            d: 'օր',
+            dd: '%d օր',
+            M: 'ամիս',
+            MM: '%d ամիս',
+            y: 'տարի',
+            yy: '%d տարի',
+        },
+        meridiemParse: /գիշերվա|առավոտվա|ցերեկվա|երեկոյան/,
+        isPM: function (input) {
+            return /^(ցերեկվա|երեկոյան)$/.test(input);
+        },
+        meridiem: function (hour) {
+            if (hour < 4) {
+                return 'գիշերվա';
+            } else if (hour < 12) {
+                return 'առավոտվա';
+            } else if (hour < 17) {
+                return 'ցերեկվա';
+            } else {
+                return 'երեկոյան';
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}|\d{1,2}-(ին|րդ)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'DDD':
+                case 'w':
+                case 'W':
+                case 'DDDo':
+                    if (number === 1) {
+                        return number + '-ին';
+                    }
+                    return number + '-րդ';
+                default:
+                    return number;
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('id', {
+        months: 'Januari_Februari_Maret_April_Mei_Juni_Juli_Agustus_September_Oktober_November_Desember'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_Mei_Jun_Jul_Agt_Sep_Okt_Nov_Des'.split('_'),
+        weekdays: 'Minggu_Senin_Selasa_Rabu_Kamis_Jumat_Sabtu'.split('_'),
+        weekdaysShort: 'Min_Sen_Sel_Rab_Kam_Jum_Sab'.split('_'),
+        weekdaysMin: 'Mg_Sn_Sl_Rb_Km_Jm_Sb'.split('_'),
+        longDateFormat: {
+            LT: 'HH.mm',
+            LTS: 'HH.mm.ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY [pukul] HH.mm',
+            LLLL: 'dddd, D MMMM YYYY [pukul] HH.mm',
+        },
+        meridiemParse: /pagi|siang|sore|malam/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'pagi') {
+                return hour;
+            } else if (meridiem === 'siang') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === 'sore' || meridiem === 'malam') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 11) {
+                return 'pagi';
+            } else if (hours < 15) {
+                return 'siang';
+            } else if (hours < 19) {
+                return 'sore';
+            } else {
+                return 'malam';
+            }
+        },
+        calendar: {
+            sameDay: '[Hari ini pukul] LT',
+            nextDay: '[Besok pukul] LT',
+            nextWeek: 'dddd [pukul] LT',
+            lastDay: '[Kemarin pukul] LT',
+            lastWeek: 'dddd [lalu pukul] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'dalam %s',
+            past: '%s yang lalu',
+            s: 'beberapa detik',
+            ss: '%d detik',
+            m: 'semenit',
+            mm: '%d menit',
+            h: 'sejam',
+            hh: '%d jam',
+            d: 'sehari',
+            dd: '%d hari',
+            M: 'sebulan',
+            MM: '%d bulan',
+            y: 'setahun',
+            yy: '%d tahun',
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function plural$2(n) {
+        if (n % 100 === 11) {
+            return true;
+        } else if (n % 10 === 1) {
+            return false;
+        }
+        return true;
+    }
+    function translate$5(number, withoutSuffix, key, isFuture) {
+        var result = number + ' ';
+        switch (key) {
+            case 's':
+                return withoutSuffix || isFuture
+                    ? 'nokkrar sekúndur'
+                    : 'nokkrum sekúndum';
+            case 'ss':
+                if (plural$2(number)) {
+                    return (
+                        result +
+                        (withoutSuffix || isFuture ? 'sekúndur' : 'sekúndum')
+                    );
+                }
+                return result + 'sekúnda';
+            case 'm':
+                return withoutSuffix ? 'mínúta' : 'mínútu';
+            case 'mm':
+                if (plural$2(number)) {
+                    return (
+                        result + (withoutSuffix || isFuture ? 'mínútur' : 'mínútum')
+                    );
+                } else if (withoutSuffix) {
+                    return result + 'mínúta';
+                }
+                return result + 'mínútu';
+            case 'hh':
+                if (plural$2(number)) {
+                    return (
+                        result +
+                        (withoutSuffix || isFuture
+                            ? 'klukkustundir'
+                            : 'klukkustundum')
+                    );
+                }
+                return result + 'klukkustund';
+            case 'd':
+                if (withoutSuffix) {
+                    return 'dagur';
+                }
+                return isFuture ? 'dag' : 'degi';
+            case 'dd':
+                if (plural$2(number)) {
+                    if (withoutSuffix) {
+                        return result + 'dagar';
+                    }
+                    return result + (isFuture ? 'daga' : 'dögum');
+                } else if (withoutSuffix) {
+                    return result + 'dagur';
+                }
+                return result + (isFuture ? 'dag' : 'degi');
+            case 'M':
+                if (withoutSuffix) {
+                    return 'mánuður';
+                }
+                return isFuture ? 'mánuð' : 'mánuði';
+            case 'MM':
+                if (plural$2(number)) {
+                    if (withoutSuffix) {
+                        return result + 'mánuðir';
+                    }
+                    return result + (isFuture ? 'mánuði' : 'mánuðum');
+                } else if (withoutSuffix) {
+                    return result + 'mánuður';
+                }
+                return result + (isFuture ? 'mánuð' : 'mánuði');
+            case 'y':
+                return withoutSuffix || isFuture ? 'ár' : 'ári';
+            case 'yy':
+                if (plural$2(number)) {
+                    return result + (withoutSuffix || isFuture ? 'ár' : 'árum');
+                }
+                return result + (withoutSuffix || isFuture ? 'ár' : 'ári');
+        }
+    }
+
+    moment.defineLocale('is', {
+        months: 'janúar_febrúar_mars_apríl_maí_júní_júlí_ágúst_september_október_nóvember_desember'.split(
+            '_'
+        ),
+        monthsShort: 'jan_feb_mar_apr_maí_jún_júl_ágú_sep_okt_nóv_des'.split('_'),
+        weekdays:
+            'sunnudagur_mánudagur_þriðjudagur_miðvikudagur_fimmtudagur_föstudagur_laugardagur'.split(
+                '_'
+            ),
+        weekdaysShort: 'sun_mán_þri_mið_fim_fös_lau'.split('_'),
+        weekdaysMin: 'Su_Má_Þr_Mi_Fi_Fö_La'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY [kl.] H:mm',
+            LLLL: 'dddd, D. MMMM YYYY [kl.] H:mm',
+        },
+        calendar: {
+            sameDay: '[í dag kl.] LT',
+            nextDay: '[á morgun kl.] LT',
+            nextWeek: 'dddd [kl.] LT',
+            lastDay: '[í gær kl.] LT',
+            lastWeek: '[síðasta] dddd [kl.] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'eftir %s',
+            past: 'fyrir %s síðan',
+            s: translate$5,
+            ss: translate$5,
+            m: translate$5,
+            mm: translate$5,
+            h: 'klukkustund',
+            hh: translate$5,
+            d: translate$5,
+            dd: translate$5,
+            M: translate$5,
+            MM: translate$5,
+            y: translate$5,
+            yy: translate$5,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('it-ch', {
+        months: 'gennaio_febbraio_marzo_aprile_maggio_giugno_luglio_agosto_settembre_ottobre_novembre_dicembre'.split(
+            '_'
+        ),
+        monthsShort: 'gen_feb_mar_apr_mag_giu_lug_ago_set_ott_nov_dic'.split('_'),
+        weekdays: 'domenica_lunedì_martedì_mercoledì_giovedì_venerdì_sabato'.split(
+            '_'
+        ),
+        weekdaysShort: 'dom_lun_mar_mer_gio_ven_sab'.split('_'),
+        weekdaysMin: 'do_lu_ma_me_gi_ve_sa'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Oggi alle] LT',
+            nextDay: '[Domani alle] LT',
+            nextWeek: 'dddd [alle] LT',
+            lastDay: '[Ieri alle] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[la scorsa] dddd [alle] LT';
+                    default:
+                        return '[lo scorso] dddd [alle] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: function (s) {
+                return (/^[0-9].+$/.test(s) ? 'tra' : 'in') + ' ' + s;
+            },
+            past: '%s fa',
+            s: 'alcuni secondi',
+            ss: '%d secondi',
+            m: 'un minuto',
+            mm: '%d minuti',
+            h: "un'ora",
+            hh: '%d ore',
+            d: 'un giorno',
+            dd: '%d giorni',
+            M: 'un mese',
+            MM: '%d mesi',
+            y: 'un anno',
+            yy: '%d anni',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('it', {
+        months: 'gennaio_febbraio_marzo_aprile_maggio_giugno_luglio_agosto_settembre_ottobre_novembre_dicembre'.split(
+            '_'
+        ),
+        monthsShort: 'gen_feb_mar_apr_mag_giu_lug_ago_set_ott_nov_dic'.split('_'),
+        weekdays: 'domenica_lunedì_martedì_mercoledì_giovedì_venerdì_sabato'.split(
+            '_'
+        ),
+        weekdaysShort: 'dom_lun_mar_mer_gio_ven_sab'.split('_'),
+        weekdaysMin: 'do_lu_ma_me_gi_ve_sa'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: function () {
+                return (
+                    '[Oggi a' +
+                    (this.hours() > 1 ? 'lle ' : this.hours() === 0 ? ' ' : "ll'") +
+                    ']LT'
+                );
+            },
+            nextDay: function () {
+                return (
+                    '[Domani a' +
+                    (this.hours() > 1 ? 'lle ' : this.hours() === 0 ? ' ' : "ll'") +
+                    ']LT'
+                );
+            },
+            nextWeek: function () {
+                return (
+                    'dddd [a' +
+                    (this.hours() > 1 ? 'lle ' : this.hours() === 0 ? ' ' : "ll'") +
+                    ']LT'
+                );
+            },
+            lastDay: function () {
+                return (
+                    '[Ieri a' +
+                    (this.hours() > 1 ? 'lle ' : this.hours() === 0 ? ' ' : "ll'") +
+                    ']LT'
+                );
+            },
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return (
+                            '[La scorsa] dddd [a' +
+                            (this.hours() > 1
+                                ? 'lle '
+                                : this.hours() === 0
+                                  ? ' '
+                                  : "ll'") +
+                            ']LT'
+                        );
+                    default:
+                        return (
+                            '[Lo scorso] dddd [a' +
+                            (this.hours() > 1
+                                ? 'lle '
+                                : this.hours() === 0
+                                  ? ' '
+                                  : "ll'") +
+                            ']LT'
+                        );
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'tra %s',
+            past: '%s fa',
+            s: 'alcuni secondi',
+            ss: '%d secondi',
+            m: 'un minuto',
+            mm: '%d minuti',
+            h: "un'ora",
+            hh: '%d ore',
+            d: 'un giorno',
+            dd: '%d giorni',
+            w: 'una settimana',
+            ww: '%d settimane',
+            M: 'un mese',
+            MM: '%d mesi',
+            y: 'un anno',
+            yy: '%d anni',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('ja', {
+        eras: [
+            {
+                since: '2019-05-01',
+                offset: 1,
+                name: '令和',
+                narrow: '㋿',
+                abbr: 'R',
+            },
+            {
+                since: '1989-01-08',
+                until: '2019-04-30',
+                offset: 1,
+                name: '平成',
+                narrow: '㍻',
+                abbr: 'H',
+            },
+            {
+                since: '1926-12-25',
+                until: '1989-01-07',
+                offset: 1,
+                name: '昭和',
+                narrow: '㍼',
+                abbr: 'S',
+            },
+            {
+                since: '1912-07-30',
+                until: '1926-12-24',
+                offset: 1,
+                name: '大正',
+                narrow: '㍽',
+                abbr: 'T',
+            },
+            {
+                since: '1873-01-01',
+                until: '1912-07-29',
+                offset: 6,
+                name: '明治',
+                narrow: '㍾',
+                abbr: 'M',
+            },
+            {
+                since: '0001-01-01',
+                until: '1873-12-31',
+                offset: 1,
+                name: '西暦',
+                narrow: 'AD',
+                abbr: 'AD',
+            },
+            {
+                since: '0000-12-31',
+                until: -Infinity,
+                offset: 1,
+                name: '紀元前',
+                narrow: 'BC',
+                abbr: 'BC',
+            },
+        ],
+        eraYearOrdinalRegex: /(元|\d+)年/,
+        eraYearOrdinalParse: function (input, match) {
+            return match[1] === '元' ? 1 : parseInt(match[1] || input, 10);
+        },
+        months: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split('_'),
+        monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+            '_'
+        ),
+        weekdays: '日曜日_月曜日_火曜日_水曜日_木曜日_金曜日_土曜日'.split('_'),
+        weekdaysShort: '日_月_火_水_木_金_土'.split('_'),
+        weekdaysMin: '日_月_火_水_木_金_土'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY/MM/DD',
+            LL: 'YYYY年M月D日',
+            LLL: 'YYYY年M月D日 HH:mm',
+            LLLL: 'YYYY年M月D日 dddd HH:mm',
+            l: 'YYYY/MM/DD',
+            ll: 'YYYY年M月D日',
+            lll: 'YYYY年M月D日 HH:mm',
+            llll: 'YYYY年M月D日(ddd) HH:mm',
+        },
+        meridiemParse: /午前|午後/i,
+        isPM: function (input) {
+            return input === '午後';
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return '午前';
+            } else {
+                return '午後';
+            }
+        },
+        calendar: {
+            sameDay: '[今日] LT',
+            nextDay: '[明日] LT',
+            nextWeek: function (now) {
+                if (now.week() !== this.week()) {
+                    return '[来週]dddd LT';
+                } else {
+                    return 'dddd LT';
+                }
+            },
+            lastDay: '[昨日] LT',
+            lastWeek: function (now) {
+                if (this.week() !== now.week()) {
+                    return '[先週]dddd LT';
+                } else {
+                    return 'dddd LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}日/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'y':
+                    return number === 1 ? '元年' : number + '年';
+                case 'd':
+                case 'D':
+                case 'DDD':
+                    return number + '日';
+                default:
+                    return number;
+            }
+        },
+        relativeTime: {
+            future: '%s後',
+            past: '%s前',
+            s: '数秒',
+            ss: '%d秒',
+            m: '1分',
+            mm: '%d分',
+            h: '1時間',
+            hh: '%d時間',
+            d: '1日',
+            dd: '%d日',
+            M: '1ヶ月',
+            MM: '%dヶ月',
+            y: '1年',
+            yy: '%d年',
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('jv', {
+        months: 'Januari_Februari_Maret_April_Mei_Juni_Juli_Agustus_September_Oktober_Nopember_Desember'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_Mei_Jun_Jul_Ags_Sep_Okt_Nop_Des'.split('_'),
+        weekdays: 'Minggu_Senen_Seloso_Rebu_Kemis_Jemuwah_Septu'.split('_'),
+        weekdaysShort: 'Min_Sen_Sel_Reb_Kem_Jem_Sep'.split('_'),
+        weekdaysMin: 'Mg_Sn_Sl_Rb_Km_Jm_Sp'.split('_'),
+        longDateFormat: {
+            LT: 'HH.mm',
+            LTS: 'HH.mm.ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY [pukul] HH.mm',
+            LLLL: 'dddd, D MMMM YYYY [pukul] HH.mm',
+        },
+        meridiemParse: /enjing|siyang|sonten|ndalu/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'enjing') {
+                return hour;
+            } else if (meridiem === 'siyang') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === 'sonten' || meridiem === 'ndalu') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 11) {
+                return 'enjing';
+            } else if (hours < 15) {
+                return 'siyang';
+            } else if (hours < 19) {
+                return 'sonten';
+            } else {
+                return 'ndalu';
+            }
+        },
+        calendar: {
+            sameDay: '[Dinten puniko pukul] LT',
+            nextDay: '[Mbenjang pukul] LT',
+            nextWeek: 'dddd [pukul] LT',
+            lastDay: '[Kala wingi pukul] LT',
+            lastWeek: 'dddd [kepengker pukul] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'wonten ing %s',
+            past: '%s ingkang kepengker',
+            s: 'sawetawis detik',
+            ss: '%d detik',
+            m: 'setunggal menit',
+            mm: '%d menit',
+            h: 'setunggal jam',
+            hh: '%d jam',
+            d: 'sedinten',
+            dd: '%d dinten',
+            M: 'sewulan',
+            MM: '%d wulan',
+            y: 'setaun',
+            yy: '%d taun',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('ka', {
+        months: 'იანვარი_თებერვალი_მარტი_აპრილი_მაისი_ივნისი_ივლისი_აგვისტო_სექტემბერი_ოქტომბერი_ნოემბერი_დეკემბერი'.split(
+            '_'
+        ),
+        monthsShort: 'იან_თებ_მარ_აპრ_მაი_ივნ_ივლ_აგვ_სექ_ოქტ_ნოე_დეკ'.split('_'),
+        weekdays: {
+            standalone:
+                'კვირა_ორშაბათი_სამშაბათი_ოთხშაბათი_ხუთშაბათი_პარასკევი_შაბათი'.split(
+                    '_'
+                ),
+            format: 'კვირას_ორშაბათს_სამშაბათს_ოთხშაბათს_ხუთშაბათს_პარასკევს_შაბათს'.split(
+                '_'
+            ),
+            isFormat: /(წინა|შემდეგ)/,
+        },
+        weekdaysShort: 'კვი_ორშ_სამ_ოთხ_ხუთ_პარ_შაბ'.split('_'),
+        weekdaysMin: 'კვ_ორ_სა_ოთ_ხუ_პა_შა'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[დღეს] LT[-ზე]',
+            nextDay: '[ხვალ] LT[-ზე]',
+            lastDay: '[გუშინ] LT[-ზე]',
+            nextWeek: '[შემდეგ] dddd LT[-ზე]',
+            lastWeek: '[წინა] dddd LT-ზე',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: function (s) {
+                return s.replace(
+                    /(წამ|წუთ|საათ|წელ|დღ|თვ)(ი|ე)/,
+                    function ($0, $1, $2) {
+                        return $2 === 'ი' ? $1 + 'ში' : $1 + $2 + 'ში';
+                    }
+                );
+            },
+            past: function (s) {
+                if (/(წამი|წუთი|საათი|დღე|თვე)/.test(s)) {
+                    return s.replace(/(ი|ე)$/, 'ის წინ');
+                }
+                if (/წელი/.test(s)) {
+                    return s.replace(/წელი$/, 'წლის წინ');
+                }
+                return s;
+            },
+            s: 'რამდენიმე წამი',
+            ss: '%d წამი',
+            m: 'წუთი',
+            mm: '%d წუთი',
+            h: 'საათი',
+            hh: '%d საათი',
+            d: 'დღე',
+            dd: '%d დღე',
+            M: 'თვე',
+            MM: '%d თვე',
+            y: 'წელი',
+            yy: '%d წელი',
+        },
+        dayOfMonthOrdinalParse: /0|1-ლი|მე-\d{1,2}|\d{1,2}-ე/,
+        ordinal: function (number) {
+            if (number === 0) {
+                return number;
+            }
+            if (number === 1) {
+                return number + '-ლი';
+            }
+            if (
+                number < 20 ||
+                (number <= 100 && number % 20 === 0) ||
+                number % 100 === 0
+            ) {
+                return 'მე-' + number;
+            }
+            return number + '-ე';
+        },
+        week: {
+            dow: 1,
+            doy: 7,
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var suffixes$1 = {
+        0: '-ші',
+        1: '-ші',
+        2: '-ші',
+        3: '-ші',
+        4: '-ші',
+        5: '-ші',
+        6: '-шы',
+        7: '-ші',
+        8: '-ші',
+        9: '-шы',
+        10: '-шы',
+        20: '-шы',
+        30: '-шы',
+        40: '-шы',
+        50: '-ші',
+        60: '-шы',
+        70: '-ші',
+        80: '-ші',
+        90: '-шы',
+        100: '-ші',
+    };
+
+    moment.defineLocale('kk', {
+        months: 'қаңтар_ақпан_наурыз_сәуір_мамыр_маусым_шілде_тамыз_қыркүйек_қазан_қараша_желтоқсан'.split(
+            '_'
+        ),
+        monthsShort: 'қаң_ақп_нау_сәу_мам_мау_шіл_там_қыр_қаз_қар_жел'.split('_'),
+        weekdays: 'жексенбі_дүйсенбі_сейсенбі_сәрсенбі_бейсенбі_жұма_сенбі'.split(
+            '_'
+        ),
+        weekdaysShort: 'жек_дүй_сей_сәр_бей_жұм_сен'.split('_'),
+        weekdaysMin: 'жк_дй_сй_ср_бй_жм_сн'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Бүгін сағат] LT',
+            nextDay: '[Ертең сағат] LT',
+            nextWeek: 'dddd [сағат] LT',
+            lastDay: '[Кеше сағат] LT',
+            lastWeek: '[Өткен аптаның] dddd [сағат] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s ішінде',
+            past: '%s бұрын',
+            s: 'бірнеше секунд',
+            ss: '%d секунд',
+            m: 'бір минут',
+            mm: '%d минут',
+            h: 'бір сағат',
+            hh: '%d сағат',
+            d: 'бір күн',
+            dd: '%d күн',
+            M: 'бір ай',
+            MM: '%d ай',
+            y: 'бір жыл',
+            yy: '%d жыл',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(ші|шы)/,
+        ordinal: function (number) {
+            var a = number % 10,
+                b = number >= 100 ? 100 : null;
+            return number + (suffixes$1[number] || suffixes$1[a] || suffixes$1[b]);
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$a = {
+            1: '១',
+            2: '២',
+            3: '៣',
+            4: '៤',
+            5: '៥',
+            6: '៦',
+            7: '៧',
+            8: '៨',
+            9: '៩',
+            0: '០',
+        },
+        numberMap$9 = {
+            '១': '1',
+            '២': '2',
+            '៣': '3',
+            '៤': '4',
+            '៥': '5',
+            '៦': '6',
+            '៧': '7',
+            '៨': '8',
+            '៩': '9',
+            '០': '0',
+        };
+
+    moment.defineLocale('km', {
+        months: 'មករា_កុម្ភៈ_មីនា_មេសា_ឧសភា_មិថុនា_កក្កដា_សីហា_កញ្ញា_តុលា_វិច្ឆិកា_ធ្នូ'.split(
+            '_'
+        ),
+        monthsShort:
+            'មករា_កុម្ភៈ_មីនា_មេសា_ឧសភា_មិថុនា_កក្កដា_សីហា_កញ្ញា_តុលា_វិច្ឆិកា_ធ្នូ'.split(
+                '_'
+            ),
+        weekdays: 'អាទិត្យ_ច័ន្ទ_អង្គារ_ពុធ_ព្រហស្បតិ៍_សុក្រ_សៅរ៍'.split('_'),
+        weekdaysShort: 'អា_ច_អ_ព_ព្រ_សុ_ស'.split('_'),
+        weekdaysMin: 'អា_ច_អ_ព_ព្រ_សុ_ស'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ព្រឹក|ល្ងាច/,
+        isPM: function (input) {
+            return input === 'ល្ងាច';
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ព្រឹក';
+            } else {
+                return 'ល្ងាច';
+            }
+        },
+        calendar: {
+            sameDay: '[ថ្ងៃនេះ ម៉ោង] LT',
+            nextDay: '[ស្អែក ម៉ោង] LT',
+            nextWeek: 'dddd [ម៉ោង] LT',
+            lastDay: '[ម្សិលមិញ ម៉ោង] LT',
+            lastWeek: 'dddd [សប្តាហ៍មុន] [ម៉ោង] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%sទៀត',
+            past: '%sមុន',
+            s: 'ប៉ុន្មានវិនាទី',
+            ss: '%d វិនាទី',
+            m: 'មួយនាទី',
+            mm: '%d នាទី',
+            h: 'មួយម៉ោង',
+            hh: '%d ម៉ោង',
+            d: 'មួយថ្ងៃ',
+            dd: '%d ថ្ងៃ',
+            M: 'មួយខែ',
+            MM: '%d ខែ',
+            y: 'មួយឆ្នាំ',
+            yy: '%d ឆ្នាំ',
+        },
+        dayOfMonthOrdinalParse: /ទី\d{1,2}/,
+        ordinal: 'ទី%d',
+        preparse: function (string) {
+            return string.replace(/[១២៣៤៥៦៧៨៩០]/g, function (match) {
+                return numberMap$9[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap$a[match];
+            });
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$b = {
+            1: '೧',
+            2: '೨',
+            3: '೩',
+            4: '೪',
+            5: '೫',
+            6: '೬',
+            7: '೭',
+            8: '೮',
+            9: '೯',
+            0: '೦',
+        },
+        numberMap$a = {
+            '೧': '1',
+            '೨': '2',
+            '೩': '3',
+            '೪': '4',
+            '೫': '5',
+            '೬': '6',
+            '೭': '7',
+            '೮': '8',
+            '೯': '9',
+            '೦': '0',
+        };
+
+    moment.defineLocale('kn', {
+        months: 'ಜನವರಿ_ಫೆಬ್ರವರಿ_ಮಾರ್ಚ್_ಏಪ್ರಿಲ್_ಮೇ_ಜೂನ್_ಜುಲೈ_ಆಗಸ್ಟ್_ಸೆಪ್ಟೆಂಬರ್_ಅಕ್ಟೋಬರ್_ನವೆಂಬರ್_ಡಿಸೆಂಬರ್'.split(
+            '_'
+        ),
+        monthsShort:
+            'ಜನ_ಫೆಬ್ರ_ಮಾರ್ಚ್_ಏಪ್ರಿಲ್_ಮೇ_ಜೂನ್_ಜುಲೈ_ಆಗಸ್ಟ್_ಸೆಪ್ಟೆಂ_ಅಕ್ಟೋ_ನವೆಂ_ಡಿಸೆಂ'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'ಭಾನುವಾರ_ಸೋಮವಾರ_ಮಂಗಳವಾರ_ಬುಧವಾರ_ಗುರುವಾರ_ಶುಕ್ರವಾರ_ಶನಿವಾರ'.split(
+            '_'
+        ),
+        weekdaysShort: 'ಭಾನು_ಸೋಮ_ಮಂಗಳ_ಬುಧ_ಗುರು_ಶುಕ್ರ_ಶನಿ'.split('_'),
+        weekdaysMin: 'ಭಾ_ಸೋ_ಮಂ_ಬು_ಗು_ಶು_ಶ'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm',
+            LTS: 'A h:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm',
+        },
+        calendar: {
+            sameDay: '[ಇಂದು] LT',
+            nextDay: '[ನಾಳೆ] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[ನಿನ್ನೆ] LT',
+            lastWeek: '[ಕೊನೆಯ] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s ನಂತರ',
+            past: '%s ಹಿಂದೆ',
+            s: 'ಕೆಲವು ಕ್ಷಣಗಳು',
+            ss: '%d ಸೆಕೆಂಡುಗಳು',
+            m: 'ಒಂದು ನಿಮಿಷ',
+            mm: '%d ನಿಮಿಷ',
+            h: 'ಒಂದು ಗಂಟೆ',
+            hh: '%d ಗಂಟೆ',
+            d: 'ಒಂದು ದಿನ',
+            dd: '%d ದಿನ',
+            M: 'ಒಂದು ತಿಂಗಳು',
+            MM: '%d ತಿಂಗಳು',
+            y: 'ಒಂದು ವರ್ಷ',
+            yy: '%d ವರ್ಷ',
+        },
+        preparse: function (string) {
+            return string.replace(/[೧೨೩೪೫೬೭೮೯೦]/g, function (match) {
+                return numberMap$a[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap$b[match];
+            });
+        },
+        meridiemParse: /ರಾತ್ರಿ|ಬೆಳಿಗ್ಗೆ|ಮಧ್ಯಾಹ್ನ|ಸಂಜೆ/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'ರಾತ್ರಿ') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'ಬೆಳಿಗ್ಗೆ') {
+                return hour;
+            } else if (meridiem === 'ಮಧ್ಯಾಹ್ನ') {
+                return hour >= 10 ? hour : hour + 12;
+            } else if (meridiem === 'ಸಂಜೆ') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'ರಾತ್ರಿ';
+            } else if (hour < 10) {
+                return 'ಬೆಳಿಗ್ಗೆ';
+            } else if (hour < 17) {
+                return 'ಮಧ್ಯಾಹ್ನ';
+            } else if (hour < 20) {
+                return 'ಸಂಜೆ';
+            } else {
+                return 'ರಾತ್ರಿ';
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(ನೇ)/,
+        ordinal: function (number) {
+            return number + 'ನೇ';
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('ko', {
+        months: '1월_2월_3월_4월_5월_6월_7월_8월_9월_10월_11월_12월'.split('_'),
+        monthsShort: '1월_2월_3월_4월_5월_6월_7월_8월_9월_10월_11월_12월'.split(
+            '_'
+        ),
+        weekdays: '일요일_월요일_화요일_수요일_목요일_금요일_토요일'.split('_'),
+        weekdaysShort: '일_월_화_수_목_금_토'.split('_'),
+        weekdaysMin: '일_월_화_수_목_금_토'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm',
+            LTS: 'A h:mm:ss',
+            L: 'YYYY.MM.DD.',
+            LL: 'YYYY년 MMMM D일',
+            LLL: 'YYYY년 MMMM D일 A h:mm',
+            LLLL: 'YYYY년 MMMM D일 dddd A h:mm',
+            l: 'YYYY.MM.DD.',
+            ll: 'YYYY년 MMMM D일',
+            lll: 'YYYY년 MMMM D일 A h:mm',
+            llll: 'YYYY년 MMMM D일 dddd A h:mm',
+        },
+        calendar: {
+            sameDay: '오늘 LT',
+            nextDay: '내일 LT',
+            nextWeek: 'dddd LT',
+            lastDay: '어제 LT',
+            lastWeek: '지난주 dddd LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s 후',
+            past: '%s 전',
+            s: '몇 초',
+            ss: '%d초',
+            m: '1분',
+            mm: '%d분',
+            h: '한 시간',
+            hh: '%d시간',
+            d: '하루',
+            dd: '%d일',
+            M: '한 달',
+            MM: '%d달',
+            y: '일 년',
+            yy: '%d년',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(일|월|주)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'DDD':
+                    return number + '일';
+                case 'M':
+                    return number + '월';
+                case 'w':
+                case 'W':
+                    return number + '주';
+                default:
+                    return number;
+            }
+        },
+        meridiemParse: /오전|오후/,
+        isPM: function (token) {
+            return token === '오후';
+        },
+        meridiem: function (hour, minute, isUpper) {
+            return hour < 12 ? '오전' : '오후';
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function processRelativeTime$7(num, withoutSuffix, key, isFuture) {
+        var format = {
+            s: ['çend sanîye', 'çend sanîyeyan'],
+            ss: [num + ' sanîye', num + ' sanîyeyan'],
+            m: ['deqîqeyek', 'deqîqeyekê'],
+            mm: [num + ' deqîqe', num + ' deqîqeyan'],
+            h: ['saetek', 'saetekê'],
+            hh: [num + ' saet', num + ' saetan'],
+            d: ['rojek', 'rojekê'],
+            dd: [num + ' roj', num + ' rojan'],
+            w: ['hefteyek', 'hefteyekê'],
+            ww: [num + ' hefte', num + ' hefteyan'],
+            M: ['mehek', 'mehekê'],
+            MM: [num + ' meh', num + ' mehan'],
+            y: ['salek', 'salekê'],
+            yy: [num + ' sal', num + ' salan'],
+        };
+        return withoutSuffix ? format[key][0] : format[key][1];
+    }
+    // function obliqueNumSuffix(num) {
+    //     if(num.includes(':'))
+    //         num = parseInt(num.split(':')[0]);
+    //     else
+    //         num = parseInt(num);
+    //     return num == 0 || num % 10 == 1 ? 'ê'
+    //                         : (num > 10 && num % 10 == 0 ? 'î' : 'an');
+    // }
+    function ezafeNumSuffix(num) {
+        num = '' + num;
+        var l = num.substring(num.length - 1),
+            ll = num.length > 1 ? num.substring(num.length - 2) : '';
+        if (
+            !(ll == 12 || ll == 13) &&
+            (l == '2' || l == '3' || ll == '50' || l == '70' || l == '80')
+        )
+            return 'yê';
+        return 'ê';
+    }
+
+    moment.defineLocale('ku-kmr', {
+        // According to the spelling rules defined by the work group of Weqfa Mezopotamyayê (Mesopotamia Foundation)
+        // this should be: 'Kanûna Paşîn_Sibat_Adar_Nîsan_Gulan_Hezîran_Tîrmeh_Tebax_Îlon_Çirîya Pêşîn_Çirîya Paşîn_Kanûna Pêşîn'
+        // But the names below are more well known and handy
+        months: 'Rêbendan_Sibat_Adar_Nîsan_Gulan_Hezîran_Tîrmeh_Tebax_Îlon_Cotmeh_Mijdar_Berfanbar'.split(
+            '_'
+        ),
+        monthsShort: 'Rêb_Sib_Ada_Nîs_Gul_Hez_Tîr_Teb_Îlo_Cot_Mij_Ber'.split('_'),
+        monthsParseExact: true,
+        weekdays: 'Yekşem_Duşem_Sêşem_Çarşem_Pêncşem_În_Şemî'.split('_'),
+        weekdaysShort: 'Yek_Du_Sê_Çar_Pên_În_Şem'.split('_'),
+        weekdaysMin: 'Ye_Du_Sê_Ça_Pê_În_Şe'.split('_'),
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 12) {
+                return isLower ? 'bn' : 'BN';
+            } else {
+                return isLower ? 'pn' : 'PN';
+            }
+        },
+        meridiemParse: /bn|BN|pn|PN/,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'Do MMMM[a] YYYY[an]',
+            LLL: 'Do MMMM[a] YYYY[an] HH:mm',
+            LLLL: 'dddd, Do MMMM[a] YYYY[an] HH:mm',
+            ll: 'Do MMM[.] YYYY[an]',
+            lll: 'Do MMM[.] YYYY[an] HH:mm',
+            llll: 'ddd[.], Do MMM[.] YYYY[an] HH:mm',
+        },
+        calendar: {
+            sameDay: '[Îro di saet] LT [de]',
+            nextDay: '[Sibê di saet] LT [de]',
+            nextWeek: 'dddd [di saet] LT [de]',
+            lastDay: '[Duh di saet] LT [de]',
+            lastWeek: 'dddd[a borî di saet] LT [de]',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'di %s de',
+            past: 'berî %s',
+            s: processRelativeTime$7,
+            ss: processRelativeTime$7,
+            m: processRelativeTime$7,
+            mm: processRelativeTime$7,
+            h: processRelativeTime$7,
+            hh: processRelativeTime$7,
+            d: processRelativeTime$7,
+            dd: processRelativeTime$7,
+            w: processRelativeTime$7,
+            ww: processRelativeTime$7,
+            M: processRelativeTime$7,
+            MM: processRelativeTime$7,
+            y: processRelativeTime$7,
+            yy: processRelativeTime$7,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(?:yê|ê|\.)/,
+        ordinal: function (num, period) {
+            var p = period.toLowerCase();
+            if (p.includes('w') || p.includes('m')) return num + '.';
+
+            return num + ezafeNumSuffix(num);
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$c = {
+            1: '١',
+            2: '٢',
+            3: '٣',
+            4: '٤',
+            5: '٥',
+            6: '٦',
+            7: '٧',
+            8: '٨',
+            9: '٩',
+            0: '٠',
+        },
+        numberMap$b = {
+            '١': '1',
+            '٢': '2',
+            '٣': '3',
+            '٤': '4',
+            '٥': '5',
+            '٦': '6',
+            '٧': '7',
+            '٨': '8',
+            '٩': '9',
+            '٠': '0',
+        },
+        months$7 = [
+            'کانونی دووەم',
+            'شوبات',
+            'ئازار',
+            'نیسان',
+            'ئایار',
+            'حوزەیران',
+            'تەمموز',
+            'ئاب',
+            'ئەیلوول',
+            'تشرینی یەكەم',
+            'تشرینی دووەم',
+            'كانونی یەکەم',
+        ];
+
+    moment.defineLocale('ku', {
+        months: months$7,
+        monthsShort: months$7,
+        weekdays:
+            'یه‌كشه‌ممه‌_دووشه‌ممه‌_سێشه‌ممه‌_چوارشه‌ممه‌_پێنجشه‌ممه‌_هه‌ینی_شه‌ممه‌'.split(
+                '_'
+            ),
+        weekdaysShort:
+            'یه‌كشه‌م_دووشه‌م_سێشه‌م_چوارشه‌م_پێنجشه‌م_هه‌ینی_شه‌ممه‌'.split('_'),
+        weekdaysMin: 'ی_د_س_چ_پ_ه_ش'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ئێواره‌|به‌یانی/,
+        isPM: function (input) {
+            return /ئێواره‌/.test(input);
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'به‌یانی';
+            } else {
+                return 'ئێواره‌';
+            }
+        },
+        calendar: {
+            sameDay: '[ئه‌مرۆ كاتژمێر] LT',
+            nextDay: '[به‌یانی كاتژمێر] LT',
+            nextWeek: 'dddd [كاتژمێر] LT',
+            lastDay: '[دوێنێ كاتژمێر] LT',
+            lastWeek: 'dddd [كاتژمێر] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'له‌ %s',
+            past: '%s',
+            s: 'چه‌ند چركه‌یه‌ك',
+            ss: 'چركه‌ %d',
+            m: 'یه‌ك خوله‌ك',
+            mm: '%d خوله‌ك',
+            h: 'یه‌ك كاتژمێر',
+            hh: '%d كاتژمێر',
+            d: 'یه‌ك ڕۆژ',
+            dd: '%d ڕۆژ',
+            M: 'یه‌ك مانگ',
+            MM: '%d مانگ',
+            y: 'یه‌ك ساڵ',
+            yy: '%d ساڵ',
+        },
+        preparse: function (string) {
+            return string
+                .replace(/[١٢٣٤٥٦٧٨٩٠]/g, function (match) {
+                    return numberMap$b[match];
+                })
+                .replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string
+                .replace(/\d/g, function (match) {
+                    return symbolMap$c[match];
+                })
+                .replace(/,/g, '،');
+        },
+        week: {
+            dow: 6, // Saturday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var suffixes$2 = {
+        0: '-чү',
+        1: '-чи',
+        2: '-чи',
+        3: '-чү',
+        4: '-чү',
+        5: '-чи',
+        6: '-чы',
+        7: '-чи',
+        8: '-чи',
+        9: '-чу',
+        10: '-чу',
+        20: '-чы',
+        30: '-чу',
+        40: '-чы',
+        50: '-чү',
+        60: '-чы',
+        70: '-чи',
+        80: '-чи',
+        90: '-чу',
+        100: '-чү',
+    };
+
+    moment.defineLocale('ky', {
+        months: 'январь_февраль_март_апрель_май_июнь_июль_август_сентябрь_октябрь_ноябрь_декабрь'.split(
+            '_'
+        ),
+        monthsShort: 'янв_фев_март_апр_май_июнь_июль_авг_сен_окт_ноя_дек'.split(
+            '_'
+        ),
+        weekdays: 'Жекшемби_Дүйшөмбү_Шейшемби_Шаршемби_Бейшемби_Жума_Ишемби'.split(
+            '_'
+        ),
+        weekdaysShort: 'Жек_Дүй_Шей_Шар_Бей_Жум_Ише'.split('_'),
+        weekdaysMin: 'Жк_Дй_Шй_Шр_Бй_Жм_Иш'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Бүгүн саат] LT',
+            nextDay: '[Эртең саат] LT',
+            nextWeek: 'dddd [саат] LT',
+            lastDay: '[Кечээ саат] LT',
+            lastWeek: '[Өткөн аптанын] dddd [күнү] [саат] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s ичинде',
+            past: '%s мурун',
+            s: 'бирнече секунд',
+            ss: '%d секунд',
+            m: 'бир мүнөт',
+            mm: '%d мүнөт',
+            h: 'бир саат',
+            hh: '%d саат',
+            d: 'бир күн',
+            dd: '%d күн',
+            M: 'бир ай',
+            MM: '%d ай',
+            y: 'бир жыл',
+            yy: '%d жыл',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(чи|чы|чү|чу)/,
+        ordinal: function (number) {
+            var a = number % 10,
+                b = number >= 100 ? 100 : null;
+            return number + (suffixes$2[number] || suffixes$2[a] || suffixes$2[b]);
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function processRelativeTime$8(number, withoutSuffix, key, isFuture) {
+        var format = {
+            m: ['eng Minutt', 'enger Minutt'],
+            h: ['eng Stonn', 'enger Stonn'],
+            d: ['een Dag', 'engem Dag'],
+            M: ['ee Mount', 'engem Mount'],
+            y: ['ee Joer', 'engem Joer'],
+        };
+        return withoutSuffix ? format[key][0] : format[key][1];
+    }
+    function processFutureTime(string) {
+        var number = string.substr(0, string.indexOf(' '));
+        if (eifelerRegelAppliesToNumber(number)) {
+            return 'a ' + string;
+        }
+        return 'an ' + string;
+    }
+    function processPastTime(string) {
+        var number = string.substr(0, string.indexOf(' '));
+        if (eifelerRegelAppliesToNumber(number)) {
+            return 'viru ' + string;
+        }
+        return 'virun ' + string;
+    }
+    /**
+     * Returns true if the word before the given number loses the '-n' ending.
+     * e.g. 'an 10 Deeg' but 'a 5 Deeg'
+     *
+     * @param number {integer}
+     * @returns {boolean}
+     */
+    function eifelerRegelAppliesToNumber(number) {
+        number = parseInt(number, 10);
+        if (isNaN(number)) {
+            return false;
+        }
+        if (number < 0) {
+            // Negative Number --> always true
+            return true;
+        } else if (number < 10) {
+            // Only 1 digit
+            if (4 <= number && number <= 7) {
+                return true;
+            }
+            return false;
+        } else if (number < 100) {
+            // 2 digits
+            var lastDigit = number % 10,
+                firstDigit = number / 10;
+            if (lastDigit === 0) {
+                return eifelerRegelAppliesToNumber(firstDigit);
+            }
+            return eifelerRegelAppliesToNumber(lastDigit);
+        } else if (number < 10000) {
+            // 3 or 4 digits --> recursively check first digit
+            while (number >= 10) {
+                number = number / 10;
+            }
+            return eifelerRegelAppliesToNumber(number);
+        } else {
+            // Anything larger than 4 digits: recursively check first n-3 digits
+            number = number / 1000;
+            return eifelerRegelAppliesToNumber(number);
+        }
+    }
+
+    moment.defineLocale('lb', {
+        months: 'Januar_Februar_Mäerz_Abrëll_Mee_Juni_Juli_August_September_Oktober_November_Dezember'.split(
+            '_'
+        ),
+        monthsShort:
+            'Jan._Febr._Mrz._Abr._Mee_Jun._Jul._Aug._Sept._Okt._Nov._Dez.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays:
+            'Sonndeg_Méindeg_Dënschdeg_Mëttwoch_Donneschdeg_Freideg_Samschdeg'.split(
+                '_'
+            ),
+        weekdaysShort: 'So._Mé._Dë._Më._Do._Fr._Sa.'.split('_'),
+        weekdaysMin: 'So_Mé_Dë_Më_Do_Fr_Sa'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm [Auer]',
+            LTS: 'H:mm:ss [Auer]',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY H:mm [Auer]',
+            LLLL: 'dddd, D. MMMM YYYY H:mm [Auer]',
+        },
+        calendar: {
+            sameDay: '[Haut um] LT',
+            sameElse: 'L',
+            nextDay: '[Muer um] LT',
+            nextWeek: 'dddd [um] LT',
+            lastDay: '[Gëschter um] LT',
+            lastWeek: function () {
+                // Different date string for 'Dënschdeg' (Tuesday) and 'Donneschdeg' (Thursday) due to phonological rule
+                switch (this.day()) {
+                    case 2:
+                    case 4:
+                        return '[Leschten] dddd [um] LT';
+                    default:
+                        return '[Leschte] dddd [um] LT';
+                }
+            },
+        },
+        relativeTime: {
+            future: processFutureTime,
+            past: processPastTime,
+            s: 'e puer Sekonnen',
+            ss: '%d Sekonnen',
+            m: processRelativeTime$8,
+            mm: '%d Minutten',
+            h: processRelativeTime$8,
+            hh: '%d Stonnen',
+            d: processRelativeTime$8,
+            dd: '%d Deeg',
+            M: processRelativeTime$8,
+            MM: '%d Méint',
+            y: processRelativeTime$8,
+            yy: '%d Joer',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('lo', {
+        months: 'ມັງກອນ_ກຸມພາ_ມີນາ_ເມສາ_ພຶດສະພາ_ມິຖຸນາ_ກໍລະກົດ_ສິງຫາ_ກັນຍາ_ຕຸລາ_ພະຈິກ_ທັນວາ'.split(
+            '_'
+        ),
+        monthsShort:
+            'ມັງກອນ_ກຸມພາ_ມີນາ_ເມສາ_ພຶດສະພາ_ມິຖຸນາ_ກໍລະກົດ_ສິງຫາ_ກັນຍາ_ຕຸລາ_ພະຈິກ_ທັນວາ'.split(
+                '_'
+            ),
+        weekdays: 'ອາທິດ_ຈັນ_ອັງຄານ_ພຸດ_ພະຫັດ_ສຸກ_ເສົາ'.split('_'),
+        weekdaysShort: 'ທິດ_ຈັນ_ອັງຄານ_ພຸດ_ພະຫັດ_ສຸກ_ເສົາ'.split('_'),
+        weekdaysMin: 'ທ_ຈ_ອຄ_ພ_ພຫ_ສກ_ສ'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'ວັນdddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ຕອນເຊົ້າ|ຕອນແລງ/,
+        isPM: function (input) {
+            return input === 'ຕອນແລງ';
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ຕອນເຊົ້າ';
+            } else {
+                return 'ຕອນແລງ';
+            }
+        },
+        calendar: {
+            sameDay: '[ມື້ນີ້ເວລາ] LT',
+            nextDay: '[ມື້ອື່ນເວລາ] LT',
+            nextWeek: '[ວັນ]dddd[ໜ້າເວລາ] LT',
+            lastDay: '[ມື້ວານນີ້ເວລາ] LT',
+            lastWeek: '[ວັນ]dddd[ແລ້ວນີ້ເວລາ] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'ອີກ %s',
+            past: '%sຜ່ານມາ',
+            s: 'ບໍ່ເທົ່າໃດວິນາທີ',
+            ss: '%d ວິນາທີ',
+            m: '1 ນາທີ',
+            mm: '%d ນາທີ',
+            h: '1 ຊົ່ວໂມງ',
+            hh: '%d ຊົ່ວໂມງ',
+            d: '1 ມື້',
+            dd: '%d ມື້',
+            M: '1 ເດືອນ',
+            MM: '%d ເດືອນ',
+            y: '1 ປີ',
+            yy: '%d ປີ',
+        },
+        dayOfMonthOrdinalParse: /(ທີ່)\d{1,2}/,
+        ordinal: function (number) {
+            return 'ທີ່' + number;
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var units = {
+        ss: 'sekundė_sekundžių_sekundes',
+        m: 'minutė_minutės_minutę',
+        mm: 'minutės_minučių_minutes',
+        h: 'valanda_valandos_valandą',
+        hh: 'valandos_valandų_valandas',
+        d: 'diena_dienos_dieną',
+        dd: 'dienos_dienų_dienas',
+        M: 'mėnuo_mėnesio_mėnesį',
+        MM: 'mėnesiai_mėnesių_mėnesius',
+        y: 'metai_metų_metus',
+        yy: 'metai_metų_metus',
+    };
+    function translateSeconds(number, withoutSuffix, key, isFuture) {
+        if (withoutSuffix) {
+            return 'kelios sekundės';
+        } else {
+            return isFuture ? 'kelių sekundžių' : 'kelias sekundes';
+        }
+    }
+    function translateSingular(number, withoutSuffix, key, isFuture) {
+        return withoutSuffix
+            ? forms(key)[0]
+            : isFuture
+              ? forms(key)[1]
+              : forms(key)[2];
+    }
+    function special(number) {
+        return number % 10 === 0 || (number > 10 && number < 20);
+    }
+    function forms(key) {
+        return units[key].split('_');
+    }
+    function translate$6(number, withoutSuffix, key, isFuture) {
+        var result = number + ' ';
+        if (number === 1) {
+            return (
+                result + translateSingular(number, withoutSuffix, key[0], isFuture)
+            );
+        } else if (withoutSuffix) {
+            return result + (special(number) ? forms(key)[1] : forms(key)[0]);
+        } else {
+            if (isFuture) {
+                return result + forms(key)[1];
+            } else {
+                return result + (special(number) ? forms(key)[1] : forms(key)[2]);
+            }
+        }
+    }
+    moment.defineLocale('lt', {
+        months: {
+            format: 'sausio_vasario_kovo_balandžio_gegužės_birželio_liepos_rugpjūčio_rugsėjo_spalio_lapkričio_gruodžio'.split(
+                '_'
+            ),
+            standalone:
+                'sausis_vasaris_kovas_balandis_gegužė_birželis_liepa_rugpjūtis_rugsėjis_spalis_lapkritis_gruodis'.split(
+                    '_'
+                ),
+            isFormat: /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?|MMMM?(\[[^\[\]]*\]|\s)+D[oD]?/,
+        },
+        monthsShort: 'sau_vas_kov_bal_geg_bir_lie_rgp_rgs_spa_lap_grd'.split('_'),
+        weekdays: {
+            format: 'sekmadienį_pirmadienį_antradienį_trečiadienį_ketvirtadienį_penktadienį_šeštadienį'.split(
+                '_'
+            ),
+            standalone:
+                'sekmadienis_pirmadienis_antradienis_trečiadienis_ketvirtadienis_penktadienis_šeštadienis'.split(
+                    '_'
+                ),
+            isFormat: /dddd HH:mm/,
+        },
+        weekdaysShort: 'Sek_Pir_Ant_Tre_Ket_Pen_Šeš'.split('_'),
+        weekdaysMin: 'S_P_A_T_K_Pn_Š'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY-MM-DD',
+            LL: 'YYYY [m.] MMMM D [d.]',
+            LLL: 'YYYY [m.] MMMM D [d.], HH:mm [val.]',
+            LLLL: 'YYYY [m.] MMMM D [d.], dddd, HH:mm [val.]',
+            l: 'YYYY-MM-DD',
+            ll: 'YYYY [m.] MMMM D [d.]',
+            lll: 'YYYY [m.] MMMM D [d.], HH:mm [val.]',
+            llll: 'YYYY [m.] MMMM D [d.], ddd, HH:mm [val.]',
+        },
+        calendar: {
+            sameDay: '[Šiandien] LT',
+            nextDay: '[Rytoj] LT',
+            nextWeek: 'dddd LT',
+            lastDay: '[Vakar] LT',
+            lastWeek: '[Praėjusį] dddd LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'po %s',
+            past: 'prieš %s',
+            s: translateSeconds,
+            ss: translate$6,
+            m: translateSingular,
+            mm: translate$6,
+            h: translateSingular,
+            hh: translate$6,
+            d: translateSingular,
+            dd: translate$6,
+            M: translateSingular,
+            MM: translate$6,
+            y: translateSingular,
+            yy: translate$6,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-oji/,
+        ordinal: function (number) {
+            return number + '-oji';
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var units$1 = {
+        ss: 'sekundes_sekundēm_sekunde_sekundes'.split('_'),
+        m: 'minūtes_minūtēm_minūte_minūtes'.split('_'),
+        mm: 'minūtes_minūtēm_minūte_minūtes'.split('_'),
+        h: 'stundas_stundām_stunda_stundas'.split('_'),
+        hh: 'stundas_stundām_stunda_stundas'.split('_'),
+        d: 'dienas_dienām_diena_dienas'.split('_'),
+        dd: 'dienas_dienām_diena_dienas'.split('_'),
+        M: 'mēneša_mēnešiem_mēnesis_mēneši'.split('_'),
+        MM: 'mēneša_mēnešiem_mēnesis_mēneši'.split('_'),
+        y: 'gada_gadiem_gads_gadi'.split('_'),
+        yy: 'gada_gadiem_gads_gadi'.split('_'),
+    };
+    /**
+     * @param withoutSuffix boolean true = a length of time; false = before/after a period of time.
+     */
+    function format(forms, number, withoutSuffix) {
+        if (withoutSuffix) {
+            // E.g. "21 minūte", "3 minūtes".
+            return number % 10 === 1 && number % 100 !== 11 ? forms[2] : forms[3];
+        } else {
+            // E.g. "21 minūtes" as in "pēc 21 minūtes".
+            // E.g. "3 minūtēm" as in "pēc 3 minūtēm".
+            return number % 10 === 1 && number % 100 !== 11 ? forms[0] : forms[1];
+        }
+    }
+    function relativeTimeWithPlural$1(number, withoutSuffix, key) {
+        return number + ' ' + format(units$1[key], number, withoutSuffix);
+    }
+    function relativeTimeWithSingular(number, withoutSuffix, key) {
+        return format(units$1[key], number, withoutSuffix);
+    }
+    function relativeSeconds(number, withoutSuffix) {
+        return withoutSuffix ? 'dažas sekundes' : 'dažām sekundēm';
+    }
+
+    moment.defineLocale('lv', {
+        months: 'janvāris_februāris_marts_aprīlis_maijs_jūnijs_jūlijs_augusts_septembris_oktobris_novembris_decembris'.split(
+            '_'
+        ),
+        monthsShort: 'jan_feb_mar_apr_mai_jūn_jūl_aug_sep_okt_nov_dec'.split('_'),
+        weekdays:
+            'svētdiena_pirmdiena_otrdiena_trešdiena_ceturtdiena_piektdiena_sestdiena'.split(
+                '_'
+            ),
+        weekdaysShort: 'Sv_P_O_T_C_Pk_S'.split('_'),
+        weekdaysMin: 'Sv_P_O_T_C_Pk_S'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY.',
+            LL: 'YYYY. [gada] D. MMMM',
+            LLL: 'YYYY. [gada] D. MMMM, HH:mm',
+            LLLL: 'YYYY. [gada] D. MMMM, dddd, HH:mm',
+        },
+        calendar: {
+            sameDay: '[Šodien pulksten] LT',
+            nextDay: '[Rīt pulksten] LT',
+            nextWeek: 'dddd [pulksten] LT',
+            lastDay: '[Vakar pulksten] LT',
+            lastWeek: '[Pagājušā] dddd [pulksten] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'pēc %s',
+            past: 'pirms %s',
+            s: relativeSeconds,
+            ss: relativeTimeWithPlural$1,
+            m: relativeTimeWithSingular,
+            mm: relativeTimeWithPlural$1,
+            h: relativeTimeWithSingular,
+            hh: relativeTimeWithPlural$1,
+            d: relativeTimeWithSingular,
+            dd: relativeTimeWithPlural$1,
+            M: relativeTimeWithSingular,
+            MM: relativeTimeWithPlural$1,
+            y: relativeTimeWithSingular,
+            yy: relativeTimeWithPlural$1,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var translator = {
+        words: {
+            //Different grammatical cases
+            ss: ['sekund', 'sekunda', 'sekundi'],
+            m: ['jedan minut', 'jednog minuta'],
+            mm: ['minut', 'minuta', 'minuta'],
+            h: ['jedan sat', 'jednog sata'],
+            hh: ['sat', 'sata', 'sati'],
+            dd: ['dan', 'dana', 'dana'],
+            MM: ['mjesec', 'mjeseca', 'mjeseci'],
+            yy: ['godina', 'godine', 'godina'],
+        },
+        correctGrammaticalCase: function (number, wordKey) {
+            return number === 1
+                ? wordKey[0]
+                : number >= 2 && number <= 4
+                  ? wordKey[1]
+                  : wordKey[2];
+        },
+        translate: function (number, withoutSuffix, key) {
+            var wordKey = translator.words[key];
+            if (key.length === 1) {
+                return withoutSuffix ? wordKey[0] : wordKey[1];
+            } else {
+                return (
+                    number +
+                    ' ' +
+                    translator.correctGrammaticalCase(number, wordKey)
+                );
+            }
+        },
+    };
+
+    moment.defineLocale('me', {
+        months: 'januar_februar_mart_april_maj_jun_jul_avgust_septembar_oktobar_novembar_decembar'.split(
+            '_'
+        ),
+        monthsShort:
+            'jan._feb._mar._apr._maj_jun_jul_avg._sep._okt._nov._dec.'.split('_'),
+        monthsParseExact: true,
+        weekdays: 'nedjelja_ponedjeljak_utorak_srijeda_četvrtak_petak_subota'.split(
+            '_'
+        ),
+        weekdaysShort: 'ned._pon._uto._sri._čet._pet._sub.'.split('_'),
+        weekdaysMin: 'ne_po_ut_sr_če_pe_su'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY H:mm',
+            LLLL: 'dddd, D. MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[danas u] LT',
+            nextDay: '[sjutra u] LT',
+
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[u] [nedjelju] [u] LT';
+                    case 3:
+                        return '[u] [srijedu] [u] LT';
+                    case 6:
+                        return '[u] [subotu] [u] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[u] dddd [u] LT';
+                }
+            },
+            lastDay: '[juče u] LT',
+            lastWeek: function () {
+                var lastWeekDays = [
+                    '[prošle] [nedjelje] [u] LT',
+                    '[prošlog] [ponedjeljka] [u] LT',
+                    '[prošlog] [utorka] [u] LT',
+                    '[prošle] [srijede] [u] LT',
+                    '[prošlog] [četvrtka] [u] LT',
+                    '[prošlog] [petka] [u] LT',
+                    '[prošle] [subote] [u] LT',
+                ];
+                return lastWeekDays[this.day()];
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'za %s',
+            past: 'prije %s',
+            s: 'nekoliko sekundi',
+            ss: translator.translate,
+            m: translator.translate,
+            mm: translator.translate,
+            h: translator.translate,
+            hh: translator.translate,
+            d: 'dan',
+            dd: translator.translate,
+            M: 'mjesec',
+            MM: translator.translate,
+            y: 'godinu',
+            yy: translator.translate,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('mi', {
+        months: 'Kohi-tāte_Hui-tanguru_Poutū-te-rangi_Paenga-whāwhā_Haratua_Pipiri_Hōngoingoi_Here-turi-kōkā_Mahuru_Whiringa-ā-nuku_Whiringa-ā-rangi_Hakihea'.split(
+            '_'
+        ),
+        monthsShort:
+            'Kohi_Hui_Pou_Pae_Hara_Pipi_Hōngoi_Here_Mahu_Whi-nu_Whi-ra_Haki'.split(
+                '_'
+            ),
+        monthsRegex: /(?:['a-z\u0101\u014D\u016B]+\-?){1,3}/i,
+        monthsStrictRegex: /(?:['a-z\u0101\u014D\u016B]+\-?){1,3}/i,
+        monthsShortRegex: /(?:['a-z\u0101\u014D\u016B]+\-?){1,3}/i,
+        monthsShortStrictRegex: /(?:['a-z\u0101\u014D\u016B]+\-?){1,2}/i,
+        weekdays: 'Rātapu_Mane_Tūrei_Wenerei_Tāite_Paraire_Hātarei'.split('_'),
+        weekdaysShort: 'Ta_Ma_Tū_We_Tāi_Pa_Hā'.split('_'),
+        weekdaysMin: 'Ta_Ma_Tū_We_Tāi_Pa_Hā'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY [i] HH:mm',
+            LLLL: 'dddd, D MMMM YYYY [i] HH:mm',
+        },
+        calendar: {
+            sameDay: '[i teie mahana, i] LT',
+            nextDay: '[apopo i] LT',
+            nextWeek: 'dddd [i] LT',
+            lastDay: '[inanahi i] LT',
+            lastWeek: 'dddd [whakamutunga i] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'i roto i %s',
+            past: '%s i mua',
+            s: 'te hēkona ruarua',
+            ss: '%d hēkona',
+            m: 'he meneti',
+            mm: '%d meneti',
+            h: 'te haora',
+            hh: '%d haora',
+            d: 'he ra',
+            dd: '%d ra',
+            M: 'he marama',
+            MM: '%d marama',
+            y: 'he tau',
+            yy: '%d tau',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('mk', {
+        months: 'јануари_февруари_март_април_мај_јуни_јули_август_септември_октомври_ноември_декември'.split(
+            '_'
+        ),
+        monthsShort: 'јан_фев_мар_апр_мај_јун_јул_авг_сеп_окт_ное_дек'.split('_'),
+        weekdays: 'недела_понеделник_вторник_среда_четврток_петок_сабота'.split(
+            '_'
+        ),
+        weekdaysShort: 'нед_пон_вто_сре_чет_пет_саб'.split('_'),
+        weekdaysMin: 'нe_пo_вт_ср_че_пе_сa'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'D.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY H:mm',
+            LLLL: 'dddd, D MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[Денес во] LT',
+            nextDay: '[Утре во] LT',
+            nextWeek: '[Во] dddd [во] LT',
+            lastDay: '[Вчера во] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                    case 3:
+                    case 6:
+                        return '[Изминатата] dddd [во] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[Изминатиот] dddd [во] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'за %s',
+            past: 'пред %s',
+            s: 'неколку секунди',
+            ss: '%d секунди',
+            m: 'една минута',
+            mm: '%d минути',
+            h: 'еден час',
+            hh: '%d часа',
+            d: 'еден ден',
+            dd: '%d дена',
+            M: 'еден месец',
+            MM: '%d месеци',
+            y: 'една година',
+            yy: '%d години',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(ев|ен|ти|ви|ри|ми)/,
+        ordinal: function (number) {
+            var lastDigit = number % 10,
+                last2Digits = number % 100;
+            if (number === 0) {
+                return number + '-ев';
+            } else if (last2Digits === 0) {
+                return number + '-ен';
+            } else if (last2Digits > 10 && last2Digits < 20) {
+                return number + '-ти';
+            } else if (lastDigit === 1) {
+                return number + '-ви';
+            } else if (lastDigit === 2) {
+                return number + '-ри';
+            } else if (lastDigit === 7 || lastDigit === 8) {
+                return number + '-ми';
+            } else {
+                return number + '-ти';
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('ml', {
+        months: 'ജനുവരി_ഫെബ്രുവരി_മാർച്ച്_ഏപ്രിൽ_മേയ്_ജൂൺ_ജൂലൈ_ഓഗസ്റ്റ്_സെപ്റ്റംബർ_ഒക്ടോബർ_നവംബർ_ഡിസംബർ'.split(
+            '_'
+        ),
+        monthsShort:
+            'ജനു._ഫെബ്രു._മാർ._ഏപ്രി._മേയ്_ജൂൺ_ജൂലൈ._ഓഗ._സെപ്റ്റ._ഒക്ടോ._നവം._ഡിസം.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays:
+            'ഞായറാഴ്ച_തിങ്കളാഴ്ച_ചൊവ്വാഴ്ച_ബുധനാഴ്ച_വ്യാഴാഴ്ച_വെള്ളിയാഴ്ച_ശനിയാഴ്ച'.split(
+                '_'
+            ),
+        weekdaysShort: 'ഞായർ_തിങ്കൾ_ചൊവ്വ_ബുധൻ_വ്യാഴം_വെള്ളി_ശനി'.split('_'),
+        weekdaysMin: 'ഞാ_തി_ചൊ_ബു_വ്യാ_വെ_ശ'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm -നു',
+            LTS: 'A h:mm:ss -നു',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm -നു',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm -നു',
+        },
+        calendar: {
+            sameDay: '[ഇന്ന്] LT',
+            nextDay: '[നാളെ] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[ഇന്നലെ] LT',
+            lastWeek: '[കഴിഞ്ഞ] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s കഴിഞ്ഞ്',
+            past: '%s മുൻപ്',
+            s: 'അൽപ നിമിഷങ്ങൾ',
+            ss: '%d സെക്കൻഡ്',
+            m: 'ഒരു മിനിറ്റ്',
+            mm: '%d മിനിറ്റ്',
+            h: 'ഒരു മണിക്കൂർ',
+            hh: '%d മണിക്കൂർ',
+            d: 'ഒരു ദിവസം',
+            dd: '%d ദിവസം',
+            M: 'ഒരു മാസം',
+            MM: '%d മാസം',
+            y: 'ഒരു വർഷം',
+            yy: '%d വർഷം',
+        },
+        meridiemParse: /രാത്രി|രാവിലെ|ഉച്ച കഴിഞ്ഞ്|വൈകുന്നേരം|രാത്രി/i,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (
+                (meridiem === 'രാത്രി' && hour >= 4) ||
+                meridiem === 'ഉച്ച കഴിഞ്ഞ്' ||
+                meridiem === 'വൈകുന്നേരം'
+            ) {
+                return hour + 12;
+            } else {
+                return hour;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'രാത്രി';
+            } else if (hour < 12) {
+                return 'രാവിലെ';
+            } else if (hour < 17) {
+                return 'ഉച്ച കഴിഞ്ഞ്';
+            } else if (hour < 20) {
+                return 'വൈകുന്നേരം';
+            } else {
+                return 'രാത്രി';
+            }
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function translate$7(number, withoutSuffix, key, isFuture) {
+        switch (key) {
+            case 's':
+                return withoutSuffix ? 'хэдхэн секунд' : 'хэдхэн секундын';
+            case 'ss':
+                return number + (withoutSuffix ? ' секунд' : ' секундын');
+            case 'm':
+            case 'mm':
+                return number + (withoutSuffix ? ' минут' : ' минутын');
+            case 'h':
+            case 'hh':
+                return number + (withoutSuffix ? ' цаг' : ' цагийн');
+            case 'd':
+            case 'dd':
+                return number + (withoutSuffix ? ' өдөр' : ' өдрийн');
+            case 'M':
+            case 'MM':
+                return number + (withoutSuffix ? ' сар' : ' сарын');
+            case 'y':
+            case 'yy':
+                return number + (withoutSuffix ? ' жил' : ' жилийн');
+            default:
+                return number;
+        }
+    }
+
+    moment.defineLocale('mn', {
+        months: 'Нэгдүгээр сар_Хоёрдугаар сар_Гуравдугаар сар_Дөрөвдүгээр сар_Тавдугаар сар_Зургадугаар сар_Долдугаар сар_Наймдугаар сар_Есдүгээр сар_Аравдугаар сар_Арван нэгдүгээр сар_Арван хоёрдугаар сар'.split(
+            '_'
+        ),
+        monthsShort:
+            '1 сар_2 сар_3 сар_4 сар_5 сар_6 сар_7 сар_8 сар_9 сар_10 сар_11 сар_12 сар'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'Ням_Даваа_Мягмар_Лхагва_Пүрэв_Баасан_Бямба'.split('_'),
+        weekdaysShort: 'Ням_Дав_Мяг_Лха_Пүр_Баа_Бям'.split('_'),
+        weekdaysMin: 'Ня_Да_Мя_Лх_Пү_Ба_Бя'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY-MM-DD',
+            LL: 'YYYY оны MMMMын D',
+            LLL: 'YYYY оны MMMMын D HH:mm',
+            LLLL: 'dddd, YYYY оны MMMMын D HH:mm',
+        },
+        meridiemParse: /ҮӨ|ҮХ/i,
+        isPM: function (input) {
+            return input === 'ҮХ';
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ҮӨ';
+            } else {
+                return 'ҮХ';
+            }
+        },
+        calendar: {
+            sameDay: '[Өнөөдөр] LT',
+            nextDay: '[Маргааш] LT',
+            nextWeek: '[Ирэх] dddd LT',
+            lastDay: '[Өчигдөр] LT',
+            lastWeek: '[Өнгөрсөн] dddd LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s дараа',
+            past: '%s өмнө',
+            s: translate$7,
+            ss: translate$7,
+            m: translate$7,
+            mm: translate$7,
+            h: translate$7,
+            hh: translate$7,
+            d: translate$7,
+            dd: translate$7,
+            M: translate$7,
+            MM: translate$7,
+            y: translate$7,
+            yy: translate$7,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2} өдөр/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'DDD':
+                    return number + ' өдөр';
+                default:
+                    return number;
+            }
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$d = {
+            1: '१',
+            2: '२',
+            3: '३',
+            4: '४',
+            5: '५',
+            6: '६',
+            7: '७',
+            8: '८',
+            9: '९',
+            0: '०',
+        },
+        numberMap$c = {
+            '१': '1',
+            '२': '2',
+            '३': '3',
+            '४': '4',
+            '५': '5',
+            '६': '6',
+            '७': '7',
+            '८': '8',
+            '९': '9',
+            '०': '0',
+        };
+
+    function relativeTimeMr(number, withoutSuffix, string, isFuture) {
+        var output = '';
+        if (withoutSuffix) {
+            switch (string) {
+                case 's':
+                    output = 'काही सेकंद';
+                    break;
+                case 'ss':
+                    output = '%d सेकंद';
+                    break;
+                case 'm':
+                    output = 'एक मिनिट';
+                    break;
+                case 'mm':
+                    output = '%d मिनिटे';
+                    break;
+                case 'h':
+                    output = 'एक तास';
+                    break;
+                case 'hh':
+                    output = '%d तास';
+                    break;
+                case 'd':
+                    output = 'एक दिवस';
+                    break;
+                case 'dd':
+                    output = '%d दिवस';
+                    break;
+                case 'M':
+                    output = 'एक महिना';
+                    break;
+                case 'MM':
+                    output = '%d महिने';
+                    break;
+                case 'y':
+                    output = 'एक वर्ष';
+                    break;
+                case 'yy':
+                    output = '%d वर्षे';
+                    break;
+            }
+        } else {
+            switch (string) {
+                case 's':
+                    output = 'काही सेकंदां';
+                    break;
+                case 'ss':
+                    output = '%d सेकंदां';
+                    break;
+                case 'm':
+                    output = 'एका मिनिटा';
+                    break;
+                case 'mm':
+                    output = '%d मिनिटां';
+                    break;
+                case 'h':
+                    output = 'एका तासा';
+                    break;
+                case 'hh':
+                    output = '%d तासां';
+                    break;
+                case 'd':
+                    output = 'एका दिवसा';
+                    break;
+                case 'dd':
+                    output = '%d दिवसां';
+                    break;
+                case 'M':
+                    output = 'एका महिन्या';
+                    break;
+                case 'MM':
+                    output = '%d महिन्यां';
+                    break;
+                case 'y':
+                    output = 'एका वर्षा';
+                    break;
+                case 'yy':
+                    output = '%d वर्षां';
+                    break;
+            }
+        }
+        return output.replace(/%d/i, number);
+    }
+
+    moment.defineLocale('mr', {
+        months: 'जानेवारी_फेब्रुवारी_मार्च_एप्रिल_मे_जून_जुलै_ऑगस्ट_सप्टेंबर_ऑक्टोबर_नोव्हेंबर_डिसेंबर'.split(
+            '_'
+        ),
+        monthsShort:
+            'जाने._फेब्रु._मार्च._एप्रि._मे._जून._जुलै._ऑग._सप्टें._ऑक्टो._नोव्हें._डिसें.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'रविवार_सोमवार_मंगळवार_बुधवार_गुरूवार_शुक्रवार_शनिवार'.split('_'),
+        weekdaysShort: 'रवि_सोम_मंगळ_बुध_गुरू_शुक्र_शनि'.split('_'),
+        weekdaysMin: 'र_सो_मं_बु_गु_शु_श'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm वाजता',
+            LTS: 'A h:mm:ss वाजता',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm वाजता',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm वाजता',
+        },
+        calendar: {
+            sameDay: '[आज] LT',
+            nextDay: '[उद्या] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[काल] LT',
+            lastWeek: '[मागील] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%sमध्ये',
+            past: '%sपूर्वी',
+            s: relativeTimeMr,
+            ss: relativeTimeMr,
+            m: relativeTimeMr,
+            mm: relativeTimeMr,
+            h: relativeTimeMr,
+            hh: relativeTimeMr,
+            d: relativeTimeMr,
+            dd: relativeTimeMr,
+            M: relativeTimeMr,
+            MM: relativeTimeMr,
+            y: relativeTimeMr,
+            yy: relativeTimeMr,
+        },
+        preparse: function (string) {
+            return string.replace(/[१२३४५६७८९०]/g, function (match) {
+                return numberMap$c[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap$d[match];
+            });
+        },
+        meridiemParse: /पहाटे|सकाळी|दुपारी|सायंकाळी|रात्री/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'पहाटे' || meridiem === 'सकाळी') {
+                return hour;
+            } else if (
+                meridiem === 'दुपारी' ||
+                meridiem === 'सायंकाळी' ||
+                meridiem === 'रात्री'
+            ) {
+                return hour >= 12 ? hour : hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour >= 0 && hour < 6) {
+                return 'पहाटे';
+            } else if (hour < 12) {
+                return 'सकाळी';
+            } else if (hour < 17) {
+                return 'दुपारी';
+            } else if (hour < 20) {
+                return 'सायंकाळी';
+            } else {
+                return 'रात्री';
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('ms-my', {
+        months: 'Januari_Februari_Mac_April_Mei_Jun_Julai_Ogos_September_Oktober_November_Disember'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mac_Apr_Mei_Jun_Jul_Ogs_Sep_Okt_Nov_Dis'.split('_'),
+        weekdays: 'Ahad_Isnin_Selasa_Rabu_Khamis_Jumaat_Sabtu'.split('_'),
+        weekdaysShort: 'Ahd_Isn_Sel_Rab_Kha_Jum_Sab'.split('_'),
+        weekdaysMin: 'Ah_Is_Sl_Rb_Km_Jm_Sb'.split('_'),
+        longDateFormat: {
+            LT: 'HH.mm',
+            LTS: 'HH.mm.ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY [pukul] HH.mm',
+            LLLL: 'dddd, D MMMM YYYY [pukul] HH.mm',
+        },
+        meridiemParse: /pagi|tengahari|petang|malam/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'pagi') {
+                return hour;
+            } else if (meridiem === 'tengahari') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === 'petang' || meridiem === 'malam') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 11) {
+                return 'pagi';
+            } else if (hours < 15) {
+                return 'tengahari';
+            } else if (hours < 19) {
+                return 'petang';
+            } else {
+                return 'malam';
+            }
+        },
+        calendar: {
+            sameDay: '[Hari ini pukul] LT',
+            nextDay: '[Esok pukul] LT',
+            nextWeek: 'dddd [pukul] LT',
+            lastDay: '[Kelmarin pukul] LT',
+            lastWeek: 'dddd [lepas pukul] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'dalam %s',
+            past: '%s yang lepas',
+            s: 'beberapa saat',
+            ss: '%d saat',
+            m: 'seminit',
+            mm: '%d minit',
+            h: 'sejam',
+            hh: '%d jam',
+            d: 'sehari',
+            dd: '%d hari',
+            M: 'sebulan',
+            MM: '%d bulan',
+            y: 'setahun',
+            yy: '%d tahun',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('ms', {
+        months: 'Januari_Februari_Mac_April_Mei_Jun_Julai_Ogos_September_Oktober_November_Disember'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mac_Apr_Mei_Jun_Jul_Ogs_Sep_Okt_Nov_Dis'.split('_'),
+        weekdays: 'Ahad_Isnin_Selasa_Rabu_Khamis_Jumaat_Sabtu'.split('_'),
+        weekdaysShort: 'Ahd_Isn_Sel_Rab_Kha_Jum_Sab'.split('_'),
+        weekdaysMin: 'Ah_Is_Sl_Rb_Km_Jm_Sb'.split('_'),
+        longDateFormat: {
+            LT: 'HH.mm',
+            LTS: 'HH.mm.ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY [pukul] HH.mm',
+            LLLL: 'dddd, D MMMM YYYY [pukul] HH.mm',
+        },
+        meridiemParse: /pagi|tengahari|petang|malam/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'pagi') {
+                return hour;
+            } else if (meridiem === 'tengahari') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === 'petang' || meridiem === 'malam') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 11) {
+                return 'pagi';
+            } else if (hours < 15) {
+                return 'tengahari';
+            } else if (hours < 19) {
+                return 'petang';
+            } else {
+                return 'malam';
+            }
+        },
+        calendar: {
+            sameDay: '[Hari ini pukul] LT',
+            nextDay: '[Esok pukul] LT',
+            nextWeek: 'dddd [pukul] LT',
+            lastDay: '[Kelmarin pukul] LT',
+            lastWeek: 'dddd [lepas pukul] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'dalam %s',
+            past: '%s yang lepas',
+            s: 'beberapa saat',
+            ss: '%d saat',
+            m: 'seminit',
+            mm: '%d minit',
+            h: 'sejam',
+            hh: '%d jam',
+            d: 'sehari',
+            dd: '%d hari',
+            M: 'sebulan',
+            MM: '%d bulan',
+            y: 'setahun',
+            yy: '%d tahun',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('mt', {
+        months: 'Jannar_Frar_Marzu_April_Mejju_Ġunju_Lulju_Awwissu_Settembru_Ottubru_Novembru_Diċembru'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Fra_Mar_Apr_Mej_Ġun_Lul_Aww_Set_Ott_Nov_Diċ'.split('_'),
+        weekdays:
+            'Il-Ħadd_It-Tnejn_It-Tlieta_L-Erbgħa_Il-Ħamis_Il-Ġimgħa_Is-Sibt'.split(
+                '_'
+            ),
+        weekdaysShort: 'Ħad_Tne_Tli_Erb_Ħam_Ġim_Sib'.split('_'),
+        weekdaysMin: 'Ħa_Tn_Tl_Er_Ħa_Ġi_Si'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Illum fil-]LT',
+            nextDay: '[Għada fil-]LT',
+            nextWeek: 'dddd [fil-]LT',
+            lastDay: '[Il-bieraħ fil-]LT',
+            lastWeek: 'dddd [li għadda] [fil-]LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'f’ %s',
+            past: '%s ilu',
+            s: 'ftit sekondi',
+            ss: '%d sekondi',
+            m: 'minuta',
+            mm: '%d minuti',
+            h: 'siegħa',
+            hh: '%d siegħat',
+            d: 'ġurnata',
+            dd: '%d ġranet',
+            M: 'xahar',
+            MM: '%d xhur',
+            y: 'sena',
+            yy: '%d sni',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$e = {
+            1: '၁',
+            2: '၂',
+            3: '၃',
+            4: '၄',
+            5: '၅',
+            6: '၆',
+            7: '၇',
+            8: '၈',
+            9: '၉',
+            0: '၀',
+        },
+        numberMap$d = {
+            '၁': '1',
+            '၂': '2',
+            '၃': '3',
+            '၄': '4',
+            '၅': '5',
+            '၆': '6',
+            '၇': '7',
+            '၈': '8',
+            '၉': '9',
+            '၀': '0',
+        };
+
+    moment.defineLocale('my', {
+        months: 'ဇန်နဝါရီ_ဖေဖော်ဝါရီ_မတ်_ဧပြီ_မေ_ဇွန်_ဇူလိုင်_သြဂုတ်_စက်တင်ဘာ_အောက်တိုဘာ_နိုဝင်ဘာ_ဒီဇင်ဘာ'.split(
+            '_'
+        ),
+        monthsShort: 'ဇန်_ဖေ_မတ်_ပြီ_မေ_ဇွန်_လိုင်_သြ_စက်_အောက်_နို_ဒီ'.split('_'),
+        weekdays: 'တနင်္ဂနွေ_တနင်္လာ_အင်္ဂါ_ဗုဒ္ဓဟူး_ကြာသပတေး_သောကြာ_စနေ'.split(
+            '_'
+        ),
+        weekdaysShort: 'နွေ_လာ_ဂါ_ဟူး_ကြာ_သော_နေ'.split('_'),
+        weekdaysMin: 'နွေ_လာ_ဂါ_ဟူး_ကြာ_သော_နေ'.split('_'),
+
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[ယနေ.] LT [မှာ]',
+            nextDay: '[မနက်ဖြန်] LT [မှာ]',
+            nextWeek: 'dddd LT [မှာ]',
+            lastDay: '[မနေ.က] LT [မှာ]',
+            lastWeek: '[ပြီးခဲ့သော] dddd LT [မှာ]',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'လာမည့် %s မှာ',
+            past: 'လွန်ခဲ့သော %s က',
+            s: 'စက္ကန်.အနည်းငယ်',
+            ss: '%d စက္ကန့်',
+            m: 'တစ်မိနစ်',
+            mm: '%d မိနစ်',
+            h: 'တစ်နာရီ',
+            hh: '%d နာရီ',
+            d: 'တစ်ရက်',
+            dd: '%d ရက်',
+            M: 'တစ်လ',
+            MM: '%d လ',
+            y: 'တစ်နှစ်',
+            yy: '%d နှစ်',
+        },
+        preparse: function (string) {
+            return string.replace(/[၁၂၃၄၅၆၇၈၉၀]/g, function (match) {
+                return numberMap$d[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap$e[match];
+            });
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('nb', {
+        months: 'januar_februar_mars_april_mai_juni_juli_august_september_oktober_november_desember'.split(
+            '_'
+        ),
+        monthsShort:
+            'jan._feb._mars_apr._mai_juni_juli_aug._sep._okt._nov._des.'.split('_'),
+        monthsParseExact: true,
+        weekdays: 'søndag_mandag_tirsdag_onsdag_torsdag_fredag_lørdag'.split('_'),
+        weekdaysShort: 'sø._ma._ti._on._to._fr._lø.'.split('_'),
+        weekdaysMin: 'sø_ma_ti_on_to_fr_lø'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY [kl.] HH:mm',
+            LLLL: 'dddd D. MMMM YYYY [kl.] HH:mm',
+        },
+        calendar: {
+            sameDay: '[i dag kl.] LT',
+            nextDay: '[i morgen kl.] LT',
+            nextWeek: 'dddd [kl.] LT',
+            lastDay: '[i går kl.] LT',
+            lastWeek: '[forrige] dddd [kl.] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'om %s',
+            past: '%s siden',
+            s: 'noen sekunder',
+            ss: '%d sekunder',
+            m: 'ett minutt',
+            mm: '%d minutter',
+            h: 'én time',
+            hh: '%d timer',
+            d: 'én dag',
+            dd: '%d dager',
+            w: 'én uke',
+            ww: '%d uker',
+            M: 'én måned',
+            MM: '%d måneder',
+            y: 'ett år',
+            yy: '%d år',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$f = {
+            1: '१',
+            2: '२',
+            3: '३',
+            4: '४',
+            5: '५',
+            6: '६',
+            7: '७',
+            8: '८',
+            9: '९',
+            0: '०',
+        },
+        numberMap$e = {
+            '१': '1',
+            '२': '2',
+            '३': '3',
+            '४': '4',
+            '५': '5',
+            '६': '6',
+            '७': '7',
+            '८': '8',
+            '९': '9',
+            '०': '0',
+        };
+
+    moment.defineLocale('ne', {
+        months: 'जनवरी_फेब्रुवरी_मार्च_अप्रिल_मई_जुन_जुलाई_अगष्ट_सेप्टेम्बर_अक्टोबर_नोभेम्बर_डिसेम्बर'.split(
+            '_'
+        ),
+        monthsShort:
+            'जन._फेब्रु._मार्च_अप्रि._मई_जुन_जुलाई._अग._सेप्ट._अक्टो._नोभे._डिसे.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'आइतबार_सोमबार_मङ्गलबार_बुधबार_बिहिबार_शुक्रबार_शनिबार'.split(
+            '_'
+        ),
+        weekdaysShort: 'आइत._सोम._मङ्गल._बुध._बिहि._शुक्र._शनि.'.split('_'),
+        weekdaysMin: 'आ._सो._मं._बु._बि._शु._श.'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'Aको h:mm बजे',
+            LTS: 'Aको h:mm:ss बजे',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, Aको h:mm बजे',
+            LLLL: 'dddd, D MMMM YYYY, Aको h:mm बजे',
+        },
+        preparse: function (string) {
+            return string.replace(/[१२३४५६७८९०]/g, function (match) {
+                return numberMap$e[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap$f[match];
+            });
+        },
+        meridiemParse: /राति|बिहान|दिउँसो|साँझ/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'राति') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'बिहान') {
+                return hour;
+            } else if (meridiem === 'दिउँसो') {
+                return hour >= 10 ? hour : hour + 12;
+            } else if (meridiem === 'साँझ') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 3) {
+                return 'राति';
+            } else if (hour < 12) {
+                return 'बिहान';
+            } else if (hour < 16) {
+                return 'दिउँसो';
+            } else if (hour < 20) {
+                return 'साँझ';
+            } else {
+                return 'राति';
+            }
+        },
+        calendar: {
+            sameDay: '[आज] LT',
+            nextDay: '[भोलि] LT',
+            nextWeek: '[आउँदो] dddd[,] LT',
+            lastDay: '[हिजो] LT',
+            lastWeek: '[गएको] dddd[,] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%sमा',
+            past: '%s अगाडि',
+            s: 'केही क्षण',
+            ss: '%d सेकेण्ड',
+            m: 'एक मिनेट',
+            mm: '%d मिनेट',
+            h: 'एक घण्टा',
+            hh: '%d घण्टा',
+            d: 'एक दिन',
+            dd: '%d दिन',
+            M: 'एक महिना',
+            MM: '%d महिना',
+            y: 'एक बर्ष',
+            yy: '%d बर्ष',
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var monthsShortWithDots$1 =
+            'jan._feb._mrt._apr._mei_jun._jul._aug._sep._okt._nov._dec.'.split('_'),
+        monthsShortWithoutDots$1 =
+            'jan_feb_mrt_apr_mei_jun_jul_aug_sep_okt_nov_dec'.split('_'),
+        monthsParse$8 = [
+            /^jan/i,
+            /^feb/i,
+            /^(maart|mrt\.?)$/i,
+            /^apr/i,
+            /^mei$/i,
+            /^jun[i.]?$/i,
+            /^jul[i.]?$/i,
+            /^aug/i,
+            /^sep/i,
+            /^okt/i,
+            /^nov/i,
+            /^dec/i,
+        ],
+        monthsRegex$7 =
+            /^(januari|februari|maart|april|mei|ju[nl]i|augustus|september|oktober|november|december|jan\.?|feb\.?|mrt\.?|apr\.?|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i;
+
+    moment.defineLocale('nl-be', {
+        months: 'januari_februari_maart_april_mei_juni_juli_augustus_september_oktober_november_december'.split(
+            '_'
+        ),
+        monthsShort: function (m, format) {
+            if (!m) {
+                return monthsShortWithDots$1;
+            } else if (/-MMM-/.test(format)) {
+                return monthsShortWithoutDots$1[m.month()];
+            } else {
+                return monthsShortWithDots$1[m.month()];
+            }
+        },
+
+        monthsRegex: monthsRegex$7,
+        monthsShortRegex: monthsRegex$7,
+        monthsStrictRegex:
+            /^(januari|februari|maart|april|mei|ju[nl]i|augustus|september|oktober|november|december)/i,
+        monthsShortStrictRegex:
+            /^(jan\.?|feb\.?|mrt\.?|apr\.?|mei|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i,
+
+        monthsParse: monthsParse$8,
+        longMonthsParse: monthsParse$8,
+        shortMonthsParse: monthsParse$8,
+
+        weekdays:
+            'zondag_maandag_dinsdag_woensdag_donderdag_vrijdag_zaterdag'.split('_'),
+        weekdaysShort: 'zo._ma._di._wo._do._vr._za.'.split('_'),
+        weekdaysMin: 'zo_ma_di_wo_do_vr_za'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[vandaag om] LT',
+            nextDay: '[morgen om] LT',
+            nextWeek: 'dddd [om] LT',
+            lastDay: '[gisteren om] LT',
+            lastWeek: '[afgelopen] dddd [om] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'over %s',
+            past: '%s geleden',
+            s: 'een paar seconden',
+            ss: '%d seconden',
+            m: 'één minuut',
+            mm: '%d minuten',
+            h: 'één uur',
+            hh: '%d uur',
+            d: 'één dag',
+            dd: '%d dagen',
+            M: 'één maand',
+            MM: '%d maanden',
+            y: 'één jaar',
+            yy: '%d jaar',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
+        ordinal: function (number) {
+            return (
+                number +
+                (number === 1 || number === 8 || number >= 20 ? 'ste' : 'de')
+            );
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var monthsShortWithDots$2 =
+            'jan._feb._mrt._apr._mei_jun._jul._aug._sep._okt._nov._dec.'.split('_'),
+        monthsShortWithoutDots$2 =
+            'jan_feb_mrt_apr_mei_jun_jul_aug_sep_okt_nov_dec'.split('_'),
+        monthsParse$9 = [
+            /^jan/i,
+            /^feb/i,
+            /^(maart|mrt\.?)$/i,
+            /^apr/i,
+            /^mei$/i,
+            /^jun[i.]?$/i,
+            /^jul[i.]?$/i,
+            /^aug/i,
+            /^sep/i,
+            /^okt/i,
+            /^nov/i,
+            /^dec/i,
+        ],
+        monthsRegex$8 =
+            /^(januari|februari|maart|april|mei|ju[nl]i|augustus|september|oktober|november|december|jan\.?|feb\.?|mrt\.?|apr\.?|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i;
+
+    moment.defineLocale('nl', {
+        months: 'januari_februari_maart_april_mei_juni_juli_augustus_september_oktober_november_december'.split(
+            '_'
+        ),
+        monthsShort: function (m, format) {
+            if (!m) {
+                return monthsShortWithDots$2;
+            } else if (/-MMM-/.test(format)) {
+                return monthsShortWithoutDots$2[m.month()];
+            } else {
+                return monthsShortWithDots$2[m.month()];
+            }
+        },
+
+        monthsRegex: monthsRegex$8,
+        monthsShortRegex: monthsRegex$8,
+        monthsStrictRegex:
+            /^(januari|februari|maart|april|mei|ju[nl]i|augustus|september|oktober|november|december)/i,
+        monthsShortStrictRegex:
+            /^(jan\.?|feb\.?|mrt\.?|apr\.?|mei|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i,
+
+        monthsParse: monthsParse$9,
+        longMonthsParse: monthsParse$9,
+        shortMonthsParse: monthsParse$9,
+
+        weekdays:
+            'zondag_maandag_dinsdag_woensdag_donderdag_vrijdag_zaterdag'.split('_'),
+        weekdaysShort: 'zo._ma._di._wo._do._vr._za.'.split('_'),
+        weekdaysMin: 'zo_ma_di_wo_do_vr_za'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD-MM-YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[vandaag om] LT',
+            nextDay: '[morgen om] LT',
+            nextWeek: 'dddd [om] LT',
+            lastDay: '[gisteren om] LT',
+            lastWeek: '[afgelopen] dddd [om] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'over %s',
+            past: '%s geleden',
+            s: 'een paar seconden',
+            ss: '%d seconden',
+            m: 'één minuut',
+            mm: '%d minuten',
+            h: 'één uur',
+            hh: '%d uur',
+            d: 'één dag',
+            dd: '%d dagen',
+            w: 'één week',
+            ww: '%d weken',
+            M: 'één maand',
+            MM: '%d maanden',
+            y: 'één jaar',
+            yy: '%d jaar',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
+        ordinal: function (number) {
+            return (
+                number +
+                (number === 1 || number === 8 || number >= 20 ? 'ste' : 'de')
+            );
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('nn', {
+        months: 'januar_februar_mars_april_mai_juni_juli_august_september_oktober_november_desember'.split(
+            '_'
+        ),
+        monthsShort:
+            'jan._feb._mars_apr._mai_juni_juli_aug._sep._okt._nov._des.'.split('_'),
+        monthsParseExact: true,
+        weekdays: 'sundag_måndag_tysdag_onsdag_torsdag_fredag_laurdag'.split('_'),
+        weekdaysShort: 'su._må._ty._on._to._fr._lau.'.split('_'),
+        weekdaysMin: 'su_må_ty_on_to_fr_la'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY [kl.] H:mm',
+            LLLL: 'dddd D. MMMM YYYY [kl.] HH:mm',
+        },
+        calendar: {
+            sameDay: '[I dag klokka] LT',
+            nextDay: '[I morgon klokka] LT',
+            nextWeek: 'dddd [klokka] LT',
+            lastDay: '[I går klokka] LT',
+            lastWeek: '[Føregåande] dddd [klokka] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'om %s',
+            past: '%s sidan',
+            s: 'nokre sekund',
+            ss: '%d sekund',
+            m: 'eit minutt',
+            mm: '%d minutt',
+            h: 'ein time',
+            hh: '%d timar',
+            d: 'ein dag',
+            dd: '%d dagar',
+            w: 'ei veke',
+            ww: '%d veker',
+            M: 'ein månad',
+            MM: '%d månader',
+            y: 'eit år',
+            yy: '%d år',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('oc-lnc', {
+        months: {
+            standalone:
+                'genièr_febrièr_març_abril_mai_junh_julhet_agost_setembre_octòbre_novembre_decembre'.split(
+                    '_'
+                ),
+            format: "de genièr_de febrièr_de març_d'abril_de mai_de junh_de julhet_d'agost_de setembre_d'octòbre_de novembre_de decembre".split(
+                '_'
+            ),
+            isFormat: /D[oD]?(\s)+MMMM/,
+        },
+        monthsShort:
+            'gen._febr._març_abr._mai_junh_julh._ago._set._oct._nov._dec.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'dimenge_diluns_dimars_dimècres_dijòus_divendres_dissabte'.split(
+            '_'
+        ),
+        weekdaysShort: 'dg._dl._dm._dc._dj._dv._ds.'.split('_'),
+        weekdaysMin: 'dg_dl_dm_dc_dj_dv_ds'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM [de] YYYY',
+            ll: 'D MMM YYYY',
+            LLL: 'D MMMM [de] YYYY [a] H:mm',
+            lll: 'D MMM YYYY, H:mm',
+            LLLL: 'dddd D MMMM [de] YYYY [a] H:mm',
+            llll: 'ddd D MMM YYYY, H:mm',
+        },
+        calendar: {
+            sameDay: '[uèi a] LT',
+            nextDay: '[deman a] LT',
+            nextWeek: 'dddd [a] LT',
+            lastDay: '[ièr a] LT',
+            lastWeek: 'dddd [passat a] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: "d'aquí %s",
+            past: 'fa %s',
+            s: 'unas segondas',
+            ss: '%d segondas',
+            m: 'una minuta',
+            mm: '%d minutas',
+            h: 'una ora',
+            hh: '%d oras',
+            d: 'un jorn',
+            dd: '%d jorns',
+            M: 'un mes',
+            MM: '%d meses',
+            y: 'un an',
+            yy: '%d ans',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(r|n|t|è|a)/,
+        ordinal: function (number, period) {
+            var output =
+                number === 1
+                    ? 'r'
+                    : number === 2
+                      ? 'n'
+                      : number === 3
+                        ? 'r'
+                        : number === 4
+                          ? 't'
+                          : 'è';
+            if (period === 'w' || period === 'W') {
+                output = 'a';
+            }
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4,
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$g = {
+            1: '੧',
+            2: '੨',
+            3: '੩',
+            4: '੪',
+            5: '੫',
+            6: '੬',
+            7: '੭',
+            8: '੮',
+            9: '੯',
+            0: '੦',
+        },
+        numberMap$f = {
+            '੧': '1',
+            '੨': '2',
+            '੩': '3',
+            '੪': '4',
+            '੫': '5',
+            '੬': '6',
+            '੭': '7',
+            '੮': '8',
+            '੯': '9',
+            '੦': '0',
+        };
+
+    moment.defineLocale('pa-in', {
+        // There are months name as per Nanakshahi Calendar but they are not used as rigidly in modern Punjabi.
+        months: 'ਜਨਵਰੀ_ਫ਼ਰਵਰੀ_ਮਾਰਚ_ਅਪ੍ਰੈਲ_ਮਈ_ਜੂਨ_ਜੁਲਾਈ_ਅਗਸਤ_ਸਤੰਬਰ_ਅਕਤੂਬਰ_ਨਵੰਬਰ_ਦਸੰਬਰ'.split(
+            '_'
+        ),
+        monthsShort:
+            'ਜਨਵਰੀ_ਫ਼ਰਵਰੀ_ਮਾਰਚ_ਅਪ੍ਰੈਲ_ਮਈ_ਜੂਨ_ਜੁਲਾਈ_ਅਗਸਤ_ਸਤੰਬਰ_ਅਕਤੂਬਰ_ਨਵੰਬਰ_ਦਸੰਬਰ'.split(
+                '_'
+            ),
+        weekdays: 'ਐਤਵਾਰ_ਸੋਮਵਾਰ_ਮੰਗਲਵਾਰ_ਬੁਧਵਾਰ_ਵੀਰਵਾਰ_ਸ਼ੁੱਕਰਵਾਰ_ਸ਼ਨੀਚਰਵਾਰ'.split(
+            '_'
+        ),
+        weekdaysShort: 'ਐਤ_ਸੋਮ_ਮੰਗਲ_ਬੁਧ_ਵੀਰ_ਸ਼ੁਕਰ_ਸ਼ਨੀ'.split('_'),
+        weekdaysMin: 'ਐਤ_ਸੋਮ_ਮੰਗਲ_ਬੁਧ_ਵੀਰ_ਸ਼ੁਕਰ_ਸ਼ਨੀ'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm ਵਜੇ',
+            LTS: 'A h:mm:ss ਵਜੇ',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm ਵਜੇ',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm ਵਜੇ',
+        },
+        calendar: {
+            sameDay: '[ਅਜ] LT',
+            nextDay: '[ਕਲ] LT',
+            nextWeek: '[ਅਗਲਾ] dddd, LT',
+            lastDay: '[ਕਲ] LT',
+            lastWeek: '[ਪਿਛਲੇ] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s ਵਿੱਚ',
+            past: '%s ਪਿਛਲੇ',
+            s: 'ਕੁਝ ਸਕਿੰਟ',
+            ss: '%d ਸਕਿੰਟ',
+            m: 'ਇਕ ਮਿੰਟ',
+            mm: '%d ਮਿੰਟ',
+            h: 'ਇੱਕ ਘੰਟਾ',
+            hh: '%d ਘੰਟੇ',
+            d: 'ਇੱਕ ਦਿਨ',
+            dd: '%d ਦਿਨ',
+            M: 'ਇੱਕ ਮਹੀਨਾ',
+            MM: '%d ਮਹੀਨੇ',
+            y: 'ਇੱਕ ਸਾਲ',
+            yy: '%d ਸਾਲ',
+        },
+        preparse: function (string) {
+            return string.replace(/[੧੨੩੪੫੬੭੮੯੦]/g, function (match) {
+                return numberMap$f[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap$g[match];
+            });
+        },
+        // Punjabi notation for meridiems are quite fuzzy in practice. While there exists
+        // a rigid notion of a 'Pahar' it is not used as rigidly in modern Punjabi.
+        meridiemParse: /ਰਾਤ|ਸਵੇਰ|ਦੁਪਹਿਰ|ਸ਼ਾਮ/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'ਰਾਤ') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'ਸਵੇਰ') {
+                return hour;
+            } else if (meridiem === 'ਦੁਪਹਿਰ') {
+                return hour >= 10 ? hour : hour + 12;
+            } else if (meridiem === 'ਸ਼ਾਮ') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'ਰਾਤ';
+            } else if (hour < 10) {
+                return 'ਸਵੇਰ';
+            } else if (hour < 17) {
+                return 'ਦੁਪਹਿਰ';
+            } else if (hour < 20) {
+                return 'ਸ਼ਾਮ';
+            } else {
+                return 'ਰਾਤ';
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var monthsNominative =
+            'styczeń_luty_marzec_kwiecień_maj_czerwiec_lipiec_sierpień_wrzesień_październik_listopad_grudzień'.split(
+                '_'
+            ),
+        monthsSubjective =
+            'stycznia_lutego_marca_kwietnia_maja_czerwca_lipca_sierpnia_września_października_listopada_grudnia'.split(
+                '_'
+            ),
+        monthsParse$a = [
+            /^sty/i,
+            /^lut/i,
+            /^mar/i,
+            /^kwi/i,
+            /^maj/i,
+            /^cze/i,
+            /^lip/i,
+            /^sie/i,
+            /^wrz/i,
+            /^paź/i,
+            /^lis/i,
+            /^gru/i,
+        ];
+    function plural$3(n) {
+        return n % 10 < 5 && n % 10 > 1 && ~~(n / 10) % 10 !== 1;
+    }
+    function translate$8(number, withoutSuffix, key) {
+        var result = number + ' ';
+        switch (key) {
+            case 'ss':
+                return result + (plural$3(number) ? 'sekundy' : 'sekund');
+            case 'm':
+                return withoutSuffix ? 'minuta' : 'minutę';
+            case 'mm':
+                return result + (plural$3(number) ? 'minuty' : 'minut');
+            case 'h':
+                return withoutSuffix ? 'godzina' : 'godzinę';
+            case 'hh':
+                return result + (plural$3(number) ? 'godziny' : 'godzin');
+            case 'ww':
+                return result + (plural$3(number) ? 'tygodnie' : 'tygodni');
+            case 'MM':
+                return result + (plural$3(number) ? 'miesiące' : 'miesięcy');
+            case 'yy':
+                return result + (plural$3(number) ? 'lata' : 'lat');
+        }
+    }
+
+    moment.defineLocale('pl', {
+        months: function (momentToFormat, format) {
+            if (!momentToFormat) {
+                return monthsNominative;
+            } else if (/D MMMM/.test(format)) {
+                return monthsSubjective[momentToFormat.month()];
+            } else {
+                return monthsNominative[momentToFormat.month()];
+            }
+        },
+        monthsShort: 'sty_lut_mar_kwi_maj_cze_lip_sie_wrz_paź_lis_gru'.split('_'),
+        monthsParse: monthsParse$a,
+        longMonthsParse: monthsParse$a,
+        shortMonthsParse: monthsParse$a,
+        weekdays:
+            'niedziela_poniedziałek_wtorek_środa_czwartek_piątek_sobota'.split('_'),
+        weekdaysShort: 'ndz_pon_wt_śr_czw_pt_sob'.split('_'),
+        weekdaysMin: 'Nd_Pn_Wt_Śr_Cz_Pt_So'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Dziś o] LT',
+            nextDay: '[Jutro o] LT',
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[W niedzielę o] LT';
+
+                    case 2:
+                        return '[We wtorek o] LT';
+
+                    case 3:
+                        return '[W środę o] LT';
+
+                    case 6:
+                        return '[W sobotę o] LT';
+
+                    default:
+                        return '[W] dddd [o] LT';
+                }
+            },
+            lastDay: '[Wczoraj o] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[W zeszłą niedzielę o] LT';
+                    case 3:
+                        return '[W zeszłą środę o] LT';
+                    case 6:
+                        return '[W zeszłą sobotę o] LT';
+                    default:
+                        return '[W zeszły] dddd [o] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'za %s',
+            past: '%s temu',
+            s: 'kilka sekund',
+            ss: translate$8,
+            m: translate$8,
+            mm: translate$8,
+            h: translate$8,
+            hh: translate$8,
+            d: '1 dzień',
+            dd: '%d dni',
+            w: 'tydzień',
+            ww: translate$8,
+            M: 'miesiąc',
+            MM: translate$8,
+            y: 'rok',
+            yy: translate$8,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('pt-br', {
+        months: 'janeiro_fevereiro_março_abril_maio_junho_julho_agosto_setembro_outubro_novembro_dezembro'.split(
+            '_'
+        ),
+        monthsShort: 'jan_fev_mar_abr_mai_jun_jul_ago_set_out_nov_dez'.split('_'),
+        weekdays:
+            'domingo_segunda-feira_terça-feira_quarta-feira_quinta-feira_sexta-feira_sábado'.split(
+                '_'
+            ),
+        weekdaysShort: 'dom_seg_ter_qua_qui_sex_sáb'.split('_'),
+        weekdaysMin: 'do_2ª_3ª_4ª_5ª_6ª_sá'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D [de] MMMM [de] YYYY',
+            LLL: 'D [de] MMMM [de] YYYY [às] HH:mm',
+            LLLL: 'dddd, D [de] MMMM [de] YYYY [às] HH:mm',
+        },
+        calendar: {
+            sameDay: '[Hoje às] LT',
+            nextDay: '[Amanhã às] LT',
+            nextWeek: 'dddd [às] LT',
+            lastDay: '[Ontem às] LT',
+            lastWeek: function () {
+                return this.day() === 0 || this.day() === 6
+                    ? '[Último] dddd [às] LT' // Saturday + Sunday
+                    : '[Última] dddd [às] LT'; // Monday - Friday
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'em %s',
+            past: 'há %s',
+            s: 'poucos segundos',
+            ss: '%d segundos',
+            m: 'um minuto',
+            mm: '%d minutos',
+            h: 'uma hora',
+            hh: '%d horas',
+            d: 'um dia',
+            dd: '%d dias',
+            M: 'um mês',
+            MM: '%d meses',
+            y: 'um ano',
+            yy: '%d anos',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        invalidDate: 'Data inválida',
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('pt', {
+        months: 'janeiro_fevereiro_março_abril_maio_junho_julho_agosto_setembro_outubro_novembro_dezembro'.split(
+            '_'
+        ),
+        monthsShort: 'jan_fev_mar_abr_mai_jun_jul_ago_set_out_nov_dez'.split('_'),
+        weekdays:
+            'Domingo_Segunda-feira_Terça-feira_Quarta-feira_Quinta-feira_Sexta-feira_Sábado'.split(
+                '_'
+            ),
+        weekdaysShort: 'Dom_Seg_Ter_Qua_Qui_Sex_Sáb'.split('_'),
+        weekdaysMin: 'Do_2ª_3ª_4ª_5ª_6ª_Sá'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D [de] MMMM [de] YYYY',
+            LLL: 'D [de] MMMM [de] YYYY HH:mm',
+            LLLL: 'dddd, D [de] MMMM [de] YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Hoje às] LT',
+            nextDay: '[Amanhã às] LT',
+            nextWeek: 'dddd [às] LT',
+            lastDay: '[Ontem às] LT',
+            lastWeek: function () {
+                return this.day() === 0 || this.day() === 6
+                    ? '[Último] dddd [às] LT' // Saturday + Sunday
+                    : '[Última] dddd [às] LT'; // Monday - Friday
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'em %s',
+            past: 'há %s',
+            s: 'segundos',
+            ss: '%d segundos',
+            m: 'um minuto',
+            mm: '%d minutos',
+            h: 'uma hora',
+            hh: '%d horas',
+            d: 'um dia',
+            dd: '%d dias',
+            w: 'uma semana',
+            ww: '%d semanas',
+            M: 'um mês',
+            MM: '%d meses',
+            y: 'um ano',
+            yy: '%d anos',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function relativeTimeWithPlural$2(number, withoutSuffix, key) {
+        var format = {
+                ss: 'secunde',
+                mm: 'minute',
+                hh: 'ore',
+                dd: 'zile',
+                ww: 'săptămâni',
+                MM: 'luni',
+                yy: 'ani',
+            },
+            separator = ' ';
+        if (number % 100 >= 20 || (number >= 100 && number % 100 === 0)) {
+            separator = ' de ';
+        }
+        return number + separator + format[key];
+    }
+
+    moment.defineLocale('ro', {
+        months: 'ianuarie_februarie_martie_aprilie_mai_iunie_iulie_august_septembrie_octombrie_noiembrie_decembrie'.split(
+            '_'
+        ),
+        monthsShort:
+            'ian._feb._mart._apr._mai_iun._iul._aug._sept._oct._nov._dec.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'duminică_luni_marți_miercuri_joi_vineri_sâmbătă'.split('_'),
+        weekdaysShort: 'Dum_Lun_Mar_Mie_Joi_Vin_Sâm'.split('_'),
+        weekdaysMin: 'Du_Lu_Ma_Mi_Jo_Vi_Sâ'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY H:mm',
+            LLLL: 'dddd, D MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[azi la] LT',
+            nextDay: '[mâine la] LT',
+            nextWeek: 'dddd [la] LT',
+            lastDay: '[ieri la] LT',
+            lastWeek: '[fosta] dddd [la] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'peste %s',
+            past: '%s în urmă',
+            s: 'câteva secunde',
+            ss: relativeTimeWithPlural$2,
+            m: 'un minut',
+            mm: relativeTimeWithPlural$2,
+            h: 'o oră',
+            hh: relativeTimeWithPlural$2,
+            d: 'o zi',
+            dd: relativeTimeWithPlural$2,
+            w: 'o săptămână',
+            ww: relativeTimeWithPlural$2,
+            M: 'o lună',
+            MM: relativeTimeWithPlural$2,
+            y: 'un an',
+            yy: relativeTimeWithPlural$2,
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function plural$4(word, num) {
+        var forms = word.split('_');
+        return num % 10 === 1 && num % 100 !== 11
+            ? forms[0]
+            : num % 10 >= 2 && num % 10 <= 4 && (num % 100 < 10 || num % 100 >= 20)
+              ? forms[1]
+              : forms[2];
+    }
+    function relativeTimeWithPlural$3(number, withoutSuffix, key) {
+        var format = {
+            ss: withoutSuffix ? 'секунда_секунды_секунд' : 'секунду_секунды_секунд',
+            mm: withoutSuffix ? 'минута_минуты_минут' : 'минуту_минуты_минут',
+            hh: 'час_часа_часов',
+            dd: 'день_дня_дней',
+            ww: 'неделя_недели_недель',
+            MM: 'месяц_месяца_месяцев',
+            yy: 'год_года_лет',
+        };
+        if (key === 'm') {
+            return withoutSuffix ? 'минута' : 'минуту';
+        } else {
+            return number + ' ' + plural$4(format[key], +number);
+        }
+    }
+    var monthsParse$b = [
+        /^янв/i,
+        /^фев/i,
+        /^мар/i,
+        /^апр/i,
+        /^ма[йя]/i,
+        /^июн/i,
+        /^июл/i,
+        /^авг/i,
+        /^сен/i,
+        /^окт/i,
+        /^ноя/i,
+        /^дек/i,
+    ];
+
+    // http://new.gramota.ru/spravka/rules/139-prop : § 103
+    // Сокращения месяцев: http://new.gramota.ru/spravka/buro/search-answer?s=242637
+    // CLDR data:          http://www.unicode.org/cldr/charts/28/summary/ru.html#1753
+    moment.defineLocale('ru', {
+        months: {
+            format: 'января_февраля_марта_апреля_мая_июня_июля_августа_сентября_октября_ноября_декабря'.split(
+                '_'
+            ),
+            standalone:
+                'январь_февраль_март_апрель_май_июнь_июль_август_сентябрь_октябрь_ноябрь_декабрь'.split(
+                    '_'
+                ),
+        },
+        monthsShort: {
+            // по CLDR именно "июл." и "июн.", но какой смысл менять букву на точку?
+            format: 'янв._февр._мар._апр._мая_июня_июля_авг._сент._окт._нояб._дек.'.split(
+                '_'
+            ),
+            standalone:
+                'янв._февр._март_апр._май_июнь_июль_авг._сент._окт._нояб._дек.'.split(
+                    '_'
+                ),
+        },
+        weekdays: {
+            standalone:
+                'воскресенье_понедельник_вторник_среда_четверг_пятница_суббота'.split(
+                    '_'
+                ),
+            format: 'воскресенье_понедельник_вторник_среду_четверг_пятницу_субботу'.split(
+                '_'
+            ),
+            isFormat: /\[ ?[Вв] ?(?:прошлую|следующую|эту)? ?] ?dddd/,
+        },
+        weekdaysShort: 'вс_пн_вт_ср_чт_пт_сб'.split('_'),
+        weekdaysMin: 'вс_пн_вт_ср_чт_пт_сб'.split('_'),
+        monthsParse: monthsParse$b,
+        longMonthsParse: monthsParse$b,
+        shortMonthsParse: monthsParse$b,
+
+        // полные названия с падежами, по три буквы, для некоторых, по 4 буквы, сокращения с точкой и без точки
+        monthsRegex:
+            /^(январ[ья]|янв\.?|феврал[ья]|февр?\.?|марта?|мар\.?|апрел[ья]|апр\.?|ма[йя]|июн[ья]|июн\.?|июл[ья]|июл\.?|августа?|авг\.?|сентябр[ья]|сент?\.?|октябр[ья]|окт\.?|ноябр[ья]|нояб?\.?|декабр[ья]|дек\.?)/i,
+
+        // копия предыдущего
+        monthsShortRegex:
+            /^(январ[ья]|янв\.?|феврал[ья]|февр?\.?|марта?|мар\.?|апрел[ья]|апр\.?|ма[йя]|июн[ья]|июн\.?|июл[ья]|июл\.?|августа?|авг\.?|сентябр[ья]|сент?\.?|октябр[ья]|окт\.?|ноябр[ья]|нояб?\.?|декабр[ья]|дек\.?)/i,
+
+        // полные названия с падежами
+        monthsStrictRegex:
+            /^(январ[яь]|феврал[яь]|марта?|апрел[яь]|ма[яй]|июн[яь]|июл[яь]|августа?|сентябр[яь]|октябр[яь]|ноябр[яь]|декабр[яь])/i,
+
+        // Выражение, которое соответствует только сокращённым формам
+        monthsShortStrictRegex:
+            /^(янв\.|февр?\.|мар[т.]|апр\.|ма[яй]|июн[ья.]|июл[ья.]|авг\.|сент?\.|окт\.|нояб?\.|дек\.)/i,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY г.',
+            LLL: 'D MMMM YYYY г., H:mm',
+            LLLL: 'dddd, D MMMM YYYY г., H:mm',
+        },
+        calendar: {
+            sameDay: '[Сегодня, в] LT',
+            nextDay: '[Завтра, в] LT',
+            lastDay: '[Вчера, в] LT',
+            nextWeek: function (now) {
+                if (now.week() !== this.week()) {
+                    switch (this.day()) {
+                        case 0:
+                            return '[В следующее] dddd, [в] LT';
+                        case 1:
+                        case 2:
+                        case 4:
+                            return '[В следующий] dddd, [в] LT';
+                        case 3:
+                        case 5:
+                        case 6:
+                            return '[В следующую] dddd, [в] LT';
+                    }
+                } else {
+                    if (this.day() === 2) {
+                        return '[Во] dddd, [в] LT';
+                    } else {
+                        return '[В] dddd, [в] LT';
+                    }
+                }
+            },
+            lastWeek: function (now) {
+                if (now.week() !== this.week()) {
+                    switch (this.day()) {
+                        case 0:
+                            return '[В прошлое] dddd, [в] LT';
+                        case 1:
+                        case 2:
+                        case 4:
+                            return '[В прошлый] dddd, [в] LT';
+                        case 3:
+                        case 5:
+                        case 6:
+                            return '[В прошлую] dddd, [в] LT';
+                    }
+                } else {
+                    if (this.day() === 2) {
+                        return '[Во] dddd, [в] LT';
+                    } else {
+                        return '[В] dddd, [в] LT';
+                    }
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'через %s',
+            past: '%s назад',
+            s: 'несколько секунд',
+            ss: relativeTimeWithPlural$3,
+            m: relativeTimeWithPlural$3,
+            mm: relativeTimeWithPlural$3,
+            h: 'час',
+            hh: relativeTimeWithPlural$3,
+            d: 'день',
+            dd: relativeTimeWithPlural$3,
+            w: 'неделя',
+            ww: relativeTimeWithPlural$3,
+            M: 'месяц',
+            MM: relativeTimeWithPlural$3,
+            y: 'год',
+            yy: relativeTimeWithPlural$3,
+        },
+        meridiemParse: /ночи|утра|дня|вечера/i,
+        isPM: function (input) {
+            return /^(дня|вечера)$/.test(input);
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'ночи';
+            } else if (hour < 12) {
+                return 'утра';
+            } else if (hour < 17) {
+                return 'дня';
+            } else {
+                return 'вечера';
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(й|го|я)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'M':
+                case 'd':
+                case 'DDD':
+                    return number + '-й';
+                case 'D':
+                    return number + '-го';
+                case 'w':
+                case 'W':
+                    return number + '-я';
+                default:
+                    return number;
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var months$8 = [
+            'جنوري',
+            'فيبروري',
+            'مارچ',
+            'اپريل',
+            'مئي',
+            'جون',
+            'جولاءِ',
+            'آگسٽ',
+            'سيپٽمبر',
+            'آڪٽوبر',
+            'نومبر',
+            'ڊسمبر',
+        ],
+        days = ['آچر', 'سومر', 'اڱارو', 'اربع', 'خميس', 'جمع', 'ڇنڇر'];
+
+    moment.defineLocale('sd', {
+        months: months$8,
+        monthsShort: months$8,
+        weekdays: days,
+        weekdaysShort: days,
+        weekdaysMin: days,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd، D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /صبح|شام/,
+        isPM: function (input) {
+            return 'شام' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'صبح';
+            }
+            return 'شام';
+        },
+        calendar: {
+            sameDay: '[اڄ] LT',
+            nextDay: '[سڀاڻي] LT',
+            nextWeek: 'dddd [اڳين هفتي تي] LT',
+            lastDay: '[ڪالهه] LT',
+            lastWeek: '[گزريل هفتي] dddd [تي] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s پوء',
+            past: '%s اڳ',
+            s: 'چند سيڪنڊ',
+            ss: '%d سيڪنڊ',
+            m: 'هڪ منٽ',
+            mm: '%d منٽ',
+            h: 'هڪ ڪلاڪ',
+            hh: '%d ڪلاڪ',
+            d: 'هڪ ڏينهن',
+            dd: '%d ڏينهن',
+            M: 'هڪ مهينو',
+            MM: '%d مهينا',
+            y: 'هڪ سال',
+            yy: '%d سال',
+        },
+        preparse: function (string) {
+            return string.replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string.replace(/,/g, '،');
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('se', {
+        months: 'ođđajagemánnu_guovvamánnu_njukčamánnu_cuoŋománnu_miessemánnu_geassemánnu_suoidnemánnu_borgemánnu_čakčamánnu_golggotmánnu_skábmamánnu_juovlamánnu'.split(
+            '_'
+        ),
+        monthsShort:
+            'ođđj_guov_njuk_cuo_mies_geas_suoi_borg_čakč_golg_skáb_juov'.split('_'),
+        weekdays:
+            'sotnabeaivi_vuossárga_maŋŋebárga_gaskavahkku_duorastat_bearjadat_lávvardat'.split(
+                '_'
+            ),
+        weekdaysShort: 'sotn_vuos_maŋ_gask_duor_bear_láv'.split('_'),
+        weekdaysMin: 's_v_m_g_d_b_L'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'MMMM D. [b.] YYYY',
+            LLL: 'MMMM D. [b.] YYYY [ti.] HH:mm',
+            LLLL: 'dddd, MMMM D. [b.] YYYY [ti.] HH:mm',
+        },
+        calendar: {
+            sameDay: '[otne ti] LT',
+            nextDay: '[ihttin ti] LT',
+            nextWeek: 'dddd [ti] LT',
+            lastDay: '[ikte ti] LT',
+            lastWeek: '[ovddit] dddd [ti] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s geažes',
+            past: 'maŋit %s',
+            s: 'moadde sekunddat',
+            ss: '%d sekunddat',
+            m: 'okta minuhta',
+            mm: '%d minuhtat',
+            h: 'okta diimmu',
+            hh: '%d diimmut',
+            d: 'okta beaivi',
+            dd: '%d beaivvit',
+            M: 'okta mánnu',
+            MM: '%d mánut',
+            y: 'okta jahki',
+            yy: '%d jagit',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    /*jshint -W100*/
+    moment.defineLocale('si', {
+        months: 'ජනවාරි_පෙබරවාරි_මාර්තු_අප්‍රේල්_මැයි_ජූනි_ජූලි_අගෝස්තු_සැප්තැම්බර්_ඔක්තෝබර්_නොවැම්බර්_දෙසැම්බර්'.split(
+            '_'
+        ),
+        monthsShort: 'ජන_පෙබ_මාර්_අප්_මැයි_ජූනි_ජූලි_අගෝ_සැප්_ඔක්_නොවැ_දෙසැ'.split(
+            '_'
+        ),
+        weekdays:
+            'ඉරිදා_සඳුදා_අඟහරුවාදා_බදාදා_බ්‍රහස්පතින්දා_සිකුරාදා_සෙනසුරාදා'.split(
+                '_'
+            ),
+        weekdaysShort: 'ඉරි_සඳු_අඟ_බදා_බ්‍රහ_සිකු_සෙන'.split('_'),
+        weekdaysMin: 'ඉ_ස_අ_බ_බ්‍ර_සි_සෙ'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'a h:mm',
+            LTS: 'a h:mm:ss',
+            L: 'YYYY/MM/DD',
+            LL: 'YYYY MMMM D',
+            LLL: 'YYYY MMMM D, a h:mm',
+            LLLL: 'YYYY MMMM D [වැනි] dddd, a h:mm:ss',
+        },
+        calendar: {
+            sameDay: '[අද] LT[ට]',
+            nextDay: '[හෙට] LT[ට]',
+            nextWeek: 'dddd LT[ට]',
+            lastDay: '[ඊයේ] LT[ට]',
+            lastWeek: '[පසුගිය] dddd LT[ට]',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%sකින්',
+            past: '%sකට පෙර',
+            s: 'තත්පර කිහිපය',
+            ss: 'තත්පර %d',
+            m: 'මිනිත්තුව',
+            mm: 'මිනිත්තු %d',
+            h: 'පැය',
+            hh: 'පැය %d',
+            d: 'දිනය',
+            dd: 'දින %d',
+            M: 'මාසය',
+            MM: 'මාස %d',
+            y: 'වසර',
+            yy: 'වසර %d',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2} වැනි/,
+        ordinal: function (number) {
+            return number + ' වැනි';
+        },
+        meridiemParse: /පෙර වරු|පස් වරු|පෙ.ව|ප.ව./,
+        isPM: function (input) {
+            return input === 'ප.ව.' || input === 'පස් වරු';
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours > 11) {
+                return isLower ? 'ප.ව.' : 'පස් වරු';
+            } else {
+                return isLower ? 'පෙ.ව.' : 'පෙර වරු';
+            }
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var months$9 =
+            'január_február_marec_apríl_máj_jún_júl_august_september_október_november_december'.split(
+                '_'
+            ),
+        monthsShort$7 = 'jan_feb_mar_apr_máj_jún_júl_aug_sep_okt_nov_dec'.split('_');
+    function plural$5(n) {
+        return n > 1 && n < 5;
+    }
+    function translate$9(number, withoutSuffix, key, isFuture) {
+        var result = number + ' ';
+        switch (key) {
+            case 's': // a few seconds / in a few seconds / a few seconds ago
+                return withoutSuffix || isFuture ? 'pár sekúnd' : 'pár sekundami';
+            case 'ss': // 9 seconds / in 9 seconds / 9 seconds ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural$5(number) ? 'sekundy' : 'sekúnd');
+                } else {
+                    return result + 'sekundami';
+                }
+            case 'm': // a minute / in a minute / a minute ago
+                return withoutSuffix ? 'minúta' : isFuture ? 'minútu' : 'minútou';
+            case 'mm': // 9 minutes / in 9 minutes / 9 minutes ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural$5(number) ? 'minúty' : 'minút');
+                } else {
+                    return result + 'minútami';
+                }
+            case 'h': // an hour / in an hour / an hour ago
+                return withoutSuffix ? 'hodina' : isFuture ? 'hodinu' : 'hodinou';
+            case 'hh': // 9 hours / in 9 hours / 9 hours ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural$5(number) ? 'hodiny' : 'hodín');
+                } else {
+                    return result + 'hodinami';
+                }
+            case 'd': // a day / in a day / a day ago
+                return withoutSuffix || isFuture ? 'deň' : 'dňom';
+            case 'dd': // 9 days / in 9 days / 9 days ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural$5(number) ? 'dni' : 'dní');
+                } else {
+                    return result + 'dňami';
+                }
+            case 'M': // a month / in a month / a month ago
+                return withoutSuffix || isFuture ? 'mesiac' : 'mesiacom';
+            case 'MM': // 9 months / in 9 months / 9 months ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural$5(number) ? 'mesiace' : 'mesiacov');
+                } else {
+                    return result + 'mesiacmi';
+                }
+            case 'y': // a year / in a year / a year ago
+                return withoutSuffix || isFuture ? 'rok' : 'rokom';
+            case 'yy': // 9 years / in 9 years / 9 years ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural$5(number) ? 'roky' : 'rokov');
+                } else {
+                    return result + 'rokmi';
+                }
+        }
+    }
+
+    moment.defineLocale('sk', {
+        months: months$9,
+        monthsShort: monthsShort$7,
+        weekdays: 'nedeľa_pondelok_utorok_streda_štvrtok_piatok_sobota'.split('_'),
+        weekdaysShort: 'ne_po_ut_st_št_pi_so'.split('_'),
+        weekdaysMin: 'ne_po_ut_st_št_pi_so'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY H:mm',
+            LLLL: 'dddd D. MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[dnes o] LT',
+            nextDay: '[zajtra o] LT',
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[v nedeľu o] LT';
+                    case 1:
+                    case 2:
+                        return '[v] dddd [o] LT';
+                    case 3:
+                        return '[v stredu o] LT';
+                    case 4:
+                        return '[vo štvrtok o] LT';
+                    case 5:
+                        return '[v piatok o] LT';
+                    case 6:
+                        return '[v sobotu o] LT';
+                }
+            },
+            lastDay: '[včera o] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[minulú nedeľu o] LT';
+                    case 1:
+                    case 2:
+                        return '[minulý] dddd [o] LT';
+                    case 3:
+                        return '[minulú stredu o] LT';
+                    case 4:
+                    case 5:
+                        return '[minulý] dddd [o] LT';
+                    case 6:
+                        return '[minulú sobotu o] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'za %s',
+            past: 'pred %s',
+            s: translate$9,
+            ss: translate$9,
+            m: translate$9,
+            mm: translate$9,
+            h: translate$9,
+            hh: translate$9,
+            d: translate$9,
+            dd: translate$9,
+            M: translate$9,
+            MM: translate$9,
+            y: translate$9,
+            yy: translate$9,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function processRelativeTime$9(number, withoutSuffix, key, isFuture) {
+        var result = number + ' ';
+        switch (key) {
+            case 's':
+                return withoutSuffix || isFuture
+                    ? 'nekaj sekund'
+                    : 'nekaj sekundami';
+            case 'ss':
+                if (number === 1) {
+                    result += withoutSuffix ? 'sekundo' : 'sekundi';
+                } else if (number === 2) {
+                    result += withoutSuffix || isFuture ? 'sekundi' : 'sekundah';
+                } else if (number < 5) {
+                    result += withoutSuffix || isFuture ? 'sekunde' : 'sekundah';
+                } else {
+                    result += 'sekund';
+                }
+                return result;
+            case 'm':
+                return withoutSuffix ? 'ena minuta' : 'eno minuto';
+            case 'mm':
+                if (number === 1) {
+                    result += withoutSuffix ? 'minuta' : 'minuto';
+                } else if (number === 2) {
+                    result += withoutSuffix || isFuture ? 'minuti' : 'minutama';
+                } else if (number < 5) {
+                    result += withoutSuffix || isFuture ? 'minute' : 'minutami';
+                } else {
+                    result += withoutSuffix || isFuture ? 'minut' : 'minutami';
+                }
+                return result;
+            case 'h':
+                return withoutSuffix ? 'ena ura' : 'eno uro';
+            case 'hh':
+                if (number === 1) {
+                    result += withoutSuffix ? 'ura' : 'uro';
+                } else if (number === 2) {
+                    result += withoutSuffix || isFuture ? 'uri' : 'urama';
+                } else if (number < 5) {
+                    result += withoutSuffix || isFuture ? 'ure' : 'urami';
+                } else {
+                    result += withoutSuffix || isFuture ? 'ur' : 'urami';
+                }
+                return result;
+            case 'd':
+                return withoutSuffix || isFuture ? 'en dan' : 'enim dnem';
+            case 'dd':
+                if (number === 1) {
+                    result += withoutSuffix || isFuture ? 'dan' : 'dnem';
+                } else if (number === 2) {
+                    result += withoutSuffix || isFuture ? 'dni' : 'dnevoma';
+                } else {
+                    result += withoutSuffix || isFuture ? 'dni' : 'dnevi';
+                }
+                return result;
+            case 'M':
+                return withoutSuffix || isFuture ? 'en mesec' : 'enim mesecem';
+            case 'MM':
+                if (number === 1) {
+                    result += withoutSuffix || isFuture ? 'mesec' : 'mesecem';
+                } else if (number === 2) {
+                    result += withoutSuffix || isFuture ? 'meseca' : 'mesecema';
+                } else if (number < 5) {
+                    result += withoutSuffix || isFuture ? 'mesece' : 'meseci';
+                } else {
+                    result += withoutSuffix || isFuture ? 'mesecev' : 'meseci';
+                }
+                return result;
+            case 'y':
+                return withoutSuffix || isFuture ? 'eno leto' : 'enim letom';
+            case 'yy':
+                if (number === 1) {
+                    result += withoutSuffix || isFuture ? 'leto' : 'letom';
+                } else if (number === 2) {
+                    result += withoutSuffix || isFuture ? 'leti' : 'letoma';
+                } else if (number < 5) {
+                    result += withoutSuffix || isFuture ? 'leta' : 'leti';
+                } else {
+                    result += withoutSuffix || isFuture ? 'let' : 'leti';
+                }
+                return result;
+        }
+    }
+
+    moment.defineLocale('sl', {
+        months: 'januar_februar_marec_april_maj_junij_julij_avgust_september_oktober_november_december'.split(
+            '_'
+        ),
+        monthsShort:
+            'jan._feb._mar._apr._maj._jun._jul._avg._sep._okt._nov._dec.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'nedelja_ponedeljek_torek_sreda_četrtek_petek_sobota'.split('_'),
+        weekdaysShort: 'ned._pon._tor._sre._čet._pet._sob.'.split('_'),
+        weekdaysMin: 'ne_po_to_sr_če_pe_so'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD. MM. YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY H:mm',
+            LLLL: 'dddd, D. MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[danes ob] LT',
+            nextDay: '[jutri ob] LT',
+
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[v] [nedeljo] [ob] LT';
+                    case 3:
+                        return '[v] [sredo] [ob] LT';
+                    case 6:
+                        return '[v] [soboto] [ob] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[v] dddd [ob] LT';
+                }
+            },
+            lastDay: '[včeraj ob] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[prejšnjo] [nedeljo] [ob] LT';
+                    case 3:
+                        return '[prejšnjo] [sredo] [ob] LT';
+                    case 6:
+                        return '[prejšnjo] [soboto] [ob] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[prejšnji] dddd [ob] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'čez %s',
+            past: 'pred %s',
+            s: processRelativeTime$9,
+            ss: processRelativeTime$9,
+            m: processRelativeTime$9,
+            mm: processRelativeTime$9,
+            h: processRelativeTime$9,
+            hh: processRelativeTime$9,
+            d: processRelativeTime$9,
+            dd: processRelativeTime$9,
+            M: processRelativeTime$9,
+            MM: processRelativeTime$9,
+            y: processRelativeTime$9,
+            yy: processRelativeTime$9,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('sq', {
+        months: 'Janar_Shkurt_Mars_Prill_Maj_Qershor_Korrik_Gusht_Shtator_Tetor_Nëntor_Dhjetor'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Shk_Mar_Pri_Maj_Qer_Kor_Gus_Sht_Tet_Nën_Dhj'.split('_'),
+        weekdays: 'E Diel_E Hënë_E Martë_E Mërkurë_E Enjte_E Premte_E Shtunë'.split(
+            '_'
+        ),
+        weekdaysShort: 'Die_Hën_Mar_Mër_Enj_Pre_Sht'.split('_'),
+        weekdaysMin: 'D_H_Ma_Më_E_P_Sh'.split('_'),
+        weekdaysParseExact: true,
+        meridiemParse: /PD|MD/,
+        isPM: function (input) {
+            return input.charAt(0) === 'M';
+        },
+        meridiem: function (hours, minutes, isLower) {
+            return hours < 12 ? 'PD' : 'MD';
+        },
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Sot në] LT',
+            nextDay: '[Nesër në] LT',
+            nextWeek: 'dddd [në] LT',
+            lastDay: '[Dje në] LT',
+            lastWeek: 'dddd [e kaluar në] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'në %s',
+            past: '%s më parë',
+            s: 'disa sekonda',
+            ss: '%d sekonda',
+            m: 'një minutë',
+            mm: '%d minuta',
+            h: 'një orë',
+            hh: '%d orë',
+            d: 'një ditë',
+            dd: '%d ditë',
+            M: 'një muaj',
+            MM: '%d muaj',
+            y: 'një vit',
+            yy: '%d vite',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var translator$1 = {
+        words: {
+            //Different grammatical cases
+            ss: ['секунда', 'секунде', 'секунди'],
+            m: ['један минут', 'једног минута'],
+            mm: ['минут', 'минута', 'минута'],
+            h: ['један сат', 'једног сата'],
+            hh: ['сат', 'сата', 'сати'],
+            d: ['један дан', 'једног дана'],
+            dd: ['дан', 'дана', 'дана'],
+            M: ['један месец', 'једног месеца'],
+            MM: ['месец', 'месеца', 'месеци'],
+            y: ['једну годину', 'једне године'],
+            yy: ['годину', 'године', 'година'],
+        },
+        correctGrammaticalCase: function (number, wordKey) {
+            if (
+                number % 10 >= 1 &&
+                number % 10 <= 4 &&
+                (number % 100 < 10 || number % 100 >= 20)
+            ) {
+                return number % 10 === 1 ? wordKey[0] : wordKey[1];
+            }
+            return wordKey[2];
+        },
+        translate: function (number, withoutSuffix, key, isFuture) {
+            var wordKey = translator$1.words[key],
+                word;
+
+            if (key.length === 1) {
+                // Nominativ
+                if (key === 'y' && withoutSuffix) return 'једна година';
+                return isFuture || withoutSuffix ? wordKey[0] : wordKey[1];
+            }
+
+            word = translator$1.correctGrammaticalCase(number, wordKey);
+            // Nominativ
+            if (key === 'yy' && withoutSuffix && word === 'годину') {
+                return number + ' година';
+            }
+
+            return number + ' ' + word;
+        },
+    };
+
+    moment.defineLocale('sr-cyrl', {
+        months: 'јануар_фебруар_март_април_мај_јун_јул_август_септембар_октобар_новембар_децембар'.split(
+            '_'
+        ),
+        monthsShort:
+            'јан._феб._мар._апр._мај_јун_јул_авг._сеп._окт._нов._дец.'.split('_'),
+        monthsParseExact: true,
+        weekdays: 'недеља_понедељак_уторак_среда_четвртак_петак_субота'.split('_'),
+        weekdaysShort: 'нед._пон._уто._сре._чет._пет._суб.'.split('_'),
+        weekdaysMin: 'не_по_ут_ср_че_пе_су'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'D. M. YYYY.',
+            LL: 'D. MMMM YYYY.',
+            LLL: 'D. MMMM YYYY. H:mm',
+            LLLL: 'dddd, D. MMMM YYYY. H:mm',
+        },
+        calendar: {
+            sameDay: '[данас у] LT',
+            nextDay: '[сутра у] LT',
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[у] [недељу] [у] LT';
+                    case 3:
+                        return '[у] [среду] [у] LT';
+                    case 6:
+                        return '[у] [суботу] [у] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[у] dddd [у] LT';
+                }
+            },
+            lastDay: '[јуче у] LT',
+            lastWeek: function () {
+                var lastWeekDays = [
+                    '[прошле] [недеље] [у] LT',
+                    '[прошлог] [понедељка] [у] LT',
+                    '[прошлог] [уторка] [у] LT',
+                    '[прошле] [среде] [у] LT',
+                    '[прошлог] [четвртка] [у] LT',
+                    '[прошлог] [петка] [у] LT',
+                    '[прошле] [суботе] [у] LT',
+                ];
+                return lastWeekDays[this.day()];
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'за %s',
+            past: 'пре %s',
+            s: 'неколико секунди',
+            ss: translator$1.translate,
+            m: translator$1.translate,
+            mm: translator$1.translate,
+            h: translator$1.translate,
+            hh: translator$1.translate,
+            d: translator$1.translate,
+            dd: translator$1.translate,
+            M: translator$1.translate,
+            MM: translator$1.translate,
+            y: translator$1.translate,
+            yy: translator$1.translate,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 1st is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var translator$2 = {
+        words: {
+            //Different grammatical cases
+            ss: ['sekunda', 'sekunde', 'sekundi'],
+            m: ['jedan minut', 'jednog minuta'],
+            mm: ['minut', 'minuta', 'minuta'],
+            h: ['jedan sat', 'jednog sata'],
+            hh: ['sat', 'sata', 'sati'],
+            d: ['jedan dan', 'jednog dana'],
+            dd: ['dan', 'dana', 'dana'],
+            M: ['jedan mesec', 'jednog meseca'],
+            MM: ['mesec', 'meseca', 'meseci'],
+            y: ['jednu godinu', 'jedne godine'],
+            yy: ['godinu', 'godine', 'godina'],
+        },
+        correctGrammaticalCase: function (number, wordKey) {
+            if (
+                number % 10 >= 1 &&
+                number % 10 <= 4 &&
+                (number % 100 < 10 || number % 100 >= 20)
+            ) {
+                return number % 10 === 1 ? wordKey[0] : wordKey[1];
+            }
+            return wordKey[2];
+        },
+        translate: function (number, withoutSuffix, key, isFuture) {
+            var wordKey = translator$2.words[key],
+                word;
+
+            if (key.length === 1) {
+                // Nominativ
+                if (key === 'y' && withoutSuffix) return 'jedna godina';
+                return isFuture || withoutSuffix ? wordKey[0] : wordKey[1];
+            }
+
+            word = translator$2.correctGrammaticalCase(number, wordKey);
+            // Nominativ
+            if (key === 'yy' && withoutSuffix && word === 'godinu') {
+                return number + ' godina';
+            }
+
+            return number + ' ' + word;
+        },
+    };
+
+    moment.defineLocale('sr', {
+        months: 'januar_februar_mart_april_maj_jun_jul_avgust_septembar_oktobar_novembar_decembar'.split(
+            '_'
+        ),
+        monthsShort:
+            'jan._feb._mar._apr._maj_jun_jul_avg._sep._okt._nov._dec.'.split('_'),
+        monthsParseExact: true,
+        weekdays: 'nedelja_ponedeljak_utorak_sreda_četvrtak_petak_subota'.split(
+            '_'
+        ),
+        weekdaysShort: 'ned._pon._uto._sre._čet._pet._sub.'.split('_'),
+        weekdaysMin: 'ne_po_ut_sr_če_pe_su'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'D. M. YYYY.',
+            LL: 'D. MMMM YYYY.',
+            LLL: 'D. MMMM YYYY. H:mm',
+            LLLL: 'dddd, D. MMMM YYYY. H:mm',
+        },
+        calendar: {
+            sameDay: '[danas u] LT',
+            nextDay: '[sutra u] LT',
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[u] [nedelju] [u] LT';
+                    case 3:
+                        return '[u] [sredu] [u] LT';
+                    case 6:
+                        return '[u] [subotu] [u] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[u] dddd [u] LT';
+                }
+            },
+            lastDay: '[juče u] LT',
+            lastWeek: function () {
+                var lastWeekDays = [
+                    '[prošle] [nedelje] [u] LT',
+                    '[prošlog] [ponedeljka] [u] LT',
+                    '[prošlog] [utorka] [u] LT',
+                    '[prošle] [srede] [u] LT',
+                    '[prošlog] [četvrtka] [u] LT',
+                    '[prošlog] [petka] [u] LT',
+                    '[prošle] [subote] [u] LT',
+                ];
+                return lastWeekDays[this.day()];
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'za %s',
+            past: 'pre %s',
+            s: 'nekoliko sekundi',
+            ss: translator$2.translate,
+            m: translator$2.translate,
+            mm: translator$2.translate,
+            h: translator$2.translate,
+            hh: translator$2.translate,
+            d: translator$2.translate,
+            dd: translator$2.translate,
+            M: translator$2.translate,
+            MM: translator$2.translate,
+            y: translator$2.translate,
+            yy: translator$2.translate,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('ss', {
+        months: "Bhimbidvwane_Indlovana_Indlov'lenkhulu_Mabasa_Inkhwekhweti_Inhlaba_Kholwane_Ingci_Inyoni_Imphala_Lweti_Ingongoni".split(
+            '_'
+        ),
+        monthsShort: 'Bhi_Ina_Inu_Mab_Ink_Inh_Kho_Igc_Iny_Imp_Lwe_Igo'.split('_'),
+        weekdays:
+            'Lisontfo_Umsombuluko_Lesibili_Lesitsatfu_Lesine_Lesihlanu_Umgcibelo'.split(
+                '_'
+            ),
+        weekdaysShort: 'Lis_Umb_Lsb_Les_Lsi_Lsh_Umg'.split('_'),
+        weekdaysMin: 'Li_Us_Lb_Lt_Ls_Lh_Ug'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY h:mm A',
+            LLLL: 'dddd, D MMMM YYYY h:mm A',
+        },
+        calendar: {
+            sameDay: '[Namuhla nga] LT',
+            nextDay: '[Kusasa nga] LT',
+            nextWeek: 'dddd [nga] LT',
+            lastDay: '[Itolo nga] LT',
+            lastWeek: 'dddd [leliphelile] [nga] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'nga %s',
+            past: 'wenteka nga %s',
+            s: 'emizuzwana lomcane',
+            ss: '%d mzuzwana',
+            m: 'umzuzu',
+            mm: '%d emizuzu',
+            h: 'lihora',
+            hh: '%d emahora',
+            d: 'lilanga',
+            dd: '%d emalanga',
+            M: 'inyanga',
+            MM: '%d tinyanga',
+            y: 'umnyaka',
+            yy: '%d iminyaka',
+        },
+        meridiemParse: /ekuseni|emini|entsambama|ebusuku/,
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 11) {
+                return 'ekuseni';
+            } else if (hours < 15) {
+                return 'emini';
+            } else if (hours < 19) {
+                return 'entsambama';
+            } else {
+                return 'ebusuku';
+            }
+        },
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'ekuseni') {
+                return hour;
+            } else if (meridiem === 'emini') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === 'entsambama' || meridiem === 'ebusuku') {
+                if (hour === 0) {
+                    return 0;
+                }
+                return hour + 12;
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}/,
+        ordinal: '%d',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('sv', {
+        months: 'januari_februari_mars_april_maj_juni_juli_augusti_september_oktober_november_december'.split(
+            '_'
+        ),
+        monthsShort: 'jan_feb_mar_apr_maj_jun_jul_aug_sep_okt_nov_dec'.split('_'),
+        weekdays: 'söndag_måndag_tisdag_onsdag_torsdag_fredag_lördag'.split('_'),
+        weekdaysShort: 'sön_mån_tis_ons_tor_fre_lör'.split('_'),
+        weekdaysMin: 'sö_må_ti_on_to_fr_lö'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY-MM-DD',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY [kl.] HH:mm',
+            LLLL: 'dddd D MMMM YYYY [kl.] HH:mm',
+            lll: 'D MMM YYYY HH:mm',
+            llll: 'ddd D MMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Idag] LT',
+            nextDay: '[Imorgon] LT',
+            lastDay: '[Igår] LT',
+            nextWeek: '[På] dddd LT',
+            lastWeek: '[I] dddd[s] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'om %s',
+            past: 'för %s sedan',
+            s: 'några sekunder',
+            ss: '%d sekunder',
+            m: 'en minut',
+            mm: '%d minuter',
+            h: 'en timme',
+            hh: '%d timmar',
+            d: 'en dag',
+            dd: '%d dagar',
+            M: 'en månad',
+            MM: '%d månader',
+            y: 'ett år',
+            yy: '%d år',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(\:e|\:a)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? ':e'
+                        : b === 1
+                          ? ':a'
+                          : b === 2
+                            ? ':a'
+                            : b === 3
+                              ? ':e'
+                              : ':e';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('sw', {
+        months: 'Januari_Februari_Machi_Aprili_Mei_Juni_Julai_Agosti_Septemba_Oktoba_Novemba_Desemba'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mac_Apr_Mei_Jun_Jul_Ago_Sep_Okt_Nov_Des'.split('_'),
+        weekdays:
+            'Jumapili_Jumatatu_Jumanne_Jumatano_Alhamisi_Ijumaa_Jumamosi'.split(
+                '_'
+            ),
+        weekdaysShort: 'Jpl_Jtat_Jnne_Jtan_Alh_Ijm_Jmos'.split('_'),
+        weekdaysMin: 'J2_J3_J4_J5_Al_Ij_J1'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'hh:mm A',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[leo saa] LT',
+            nextDay: '[kesho saa] LT',
+            nextWeek: '[wiki ijayo] dddd [saat] LT',
+            lastDay: '[jana] LT',
+            lastWeek: '[wiki iliyopita] dddd [saat] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s baadaye',
+            past: 'tokea %s',
+            s: 'hivi punde',
+            ss: 'sekunde %d',
+            m: 'dakika moja',
+            mm: 'dakika %d',
+            h: 'saa limoja',
+            hh: 'masaa %d',
+            d: 'siku moja',
+            dd: 'siku %d',
+            M: 'mwezi mmoja',
+            MM: 'miezi %d',
+            y: 'mwaka mmoja',
+            yy: 'miaka %d',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$h = {
+            1: '௧',
+            2: '௨',
+            3: '௩',
+            4: '௪',
+            5: '௫',
+            6: '௬',
+            7: '௭',
+            8: '௮',
+            9: '௯',
+            0: '௦',
+        },
+        numberMap$g = {
+            '௧': '1',
+            '௨': '2',
+            '௩': '3',
+            '௪': '4',
+            '௫': '5',
+            '௬': '6',
+            '௭': '7',
+            '௮': '8',
+            '௯': '9',
+            '௦': '0',
+        };
+
+    moment.defineLocale('ta', {
+        months: 'ஜனவரி_பிப்ரவரி_மார்ச்_ஏப்ரல்_மே_ஜூன்_ஜூலை_ஆகஸ்ட்_செப்டெம்பர்_அக்டோபர்_நவம்பர்_டிசம்பர்'.split(
+            '_'
+        ),
+        monthsShort:
+            'ஜனவரி_பிப்ரவரி_மார்ச்_ஏப்ரல்_மே_ஜூன்_ஜூலை_ஆகஸ்ட்_செப்டெம்பர்_அக்டோபர்_நவம்பர்_டிசம்பர்'.split(
+                '_'
+            ),
+        weekdays:
+            'ஞாயிற்றுக்கிழமை_திங்கட்கிழமை_செவ்வாய்கிழமை_புதன்கிழமை_வியாழக்கிழமை_வெள்ளிக்கிழமை_சனிக்கிழமை'.split(
+                '_'
+            ),
+        weekdaysShort: 'ஞாயிறு_திங்கள்_செவ்வாய்_புதன்_வியாழன்_வெள்ளி_சனி'.split(
+            '_'
+        ),
+        weekdaysMin: 'ஞா_தி_செ_பு_வி_வெ_ச'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, HH:mm',
+            LLLL: 'dddd, D MMMM YYYY, HH:mm',
+        },
+        calendar: {
+            sameDay: '[இன்று] LT',
+            nextDay: '[நாளை] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[நேற்று] LT',
+            lastWeek: '[கடந்த வாரம்] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s இல்',
+            past: '%s முன்',
+            s: 'ஒரு சில விநாடிகள்',
+            ss: '%d விநாடிகள்',
+            m: 'ஒரு நிமிடம்',
+            mm: '%d நிமிடங்கள்',
+            h: 'ஒரு மணி நேரம்',
+            hh: '%d மணி நேரம்',
+            d: 'ஒரு நாள்',
+            dd: '%d நாட்கள்',
+            M: 'ஒரு மாதம்',
+            MM: '%d மாதங்கள்',
+            y: 'ஒரு வருடம்',
+            yy: '%d ஆண்டுகள்',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}வது/,
+        ordinal: function (number) {
+            return number + 'வது';
+        },
+        preparse: function (string) {
+            return string.replace(/[௧௨௩௪௫௬௭௮௯௦]/g, function (match) {
+                return numberMap$g[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap$h[match];
+            });
+        },
+        // refer http://ta.wikipedia.org/s/1er1
+        meridiemParse: /யாமம்|வைகறை|காலை|நண்பகல்|எற்பாடு|மாலை/,
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 2) {
+                return ' யாமம்';
+            } else if (hour < 6) {
+                return ' வைகறை'; // வைகறை
+            } else if (hour < 10) {
+                return ' காலை'; // காலை
+            } else if (hour < 14) {
+                return ' நண்பகல்'; // நண்பகல்
+            } else if (hour < 18) {
+                return ' எற்பாடு'; // எற்பாடு
+            } else if (hour < 22) {
+                return ' மாலை'; // மாலை
+            } else {
+                return ' யாமம்';
+            }
+        },
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'யாமம்') {
+                return hour < 2 ? hour : hour + 12;
+            } else if (meridiem === 'வைகறை' || meridiem === 'காலை') {
+                return hour;
+            } else if (meridiem === 'நண்பகல்') {
+                return hour >= 10 ? hour : hour + 12;
+            } else {
+                return hour + 12;
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('te', {
+        months: 'జనవరి_ఫిబ్రవరి_మార్చి_ఏప్రిల్_మే_జూన్_జులై_ఆగస్టు_సెప్టెంబర్_అక్టోబర్_నవంబర్_డిసెంబర్'.split(
+            '_'
+        ),
+        monthsShort:
+            'జన._ఫిబ్ర._మార్చి_ఏప్రి._మే_జూన్_జులై_ఆగ._సెప్._అక్టో._నవ._డిసె.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays:
+            'ఆదివారం_సోమవారం_మంగళవారం_బుధవారం_గురువారం_శుక్రవారం_శనివారం'.split(
+                '_'
+            ),
+        weekdaysShort: 'ఆది_సోమ_మంగళ_బుధ_గురు_శుక్ర_శని'.split('_'),
+        weekdaysMin: 'ఆ_సో_మం_బు_గు_శు_శ'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm',
+            LTS: 'A h:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm',
+        },
+        calendar: {
+            sameDay: '[నేడు] LT',
+            nextDay: '[రేపు] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[నిన్న] LT',
+            lastWeek: '[గత] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s లో',
+            past: '%s క్రితం',
+            s: 'కొన్ని క్షణాలు',
+            ss: '%d సెకన్లు',
+            m: 'ఒక నిమిషం',
+            mm: '%d నిమిషాలు',
+            h: 'ఒక గంట',
+            hh: '%d గంటలు',
+            d: 'ఒక రోజు',
+            dd: '%d రోజులు',
+            M: 'ఒక నెల',
+            MM: '%d నెలలు',
+            y: 'ఒక సంవత్సరం',
+            yy: '%d సంవత్సరాలు',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}వ/,
+        ordinal: '%dవ',
+        meridiemParse: /రాత్రి|ఉదయం|మధ్యాహ్నం|సాయంత్రం/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'రాత్రి') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'ఉదయం') {
+                return hour;
+            } else if (meridiem === 'మధ్యాహ్నం') {
+                return hour >= 10 ? hour : hour + 12;
+            } else if (meridiem === 'సాయంత్రం') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'రాత్రి';
+            } else if (hour < 10) {
+                return 'ఉదయం';
+            } else if (hour < 17) {
+                return 'మధ్యాహ్నం';
+            } else if (hour < 20) {
+                return 'సాయంత్రం';
+            } else {
+                return 'రాత్రి';
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('tet', {
+        months: 'Janeiru_Fevereiru_Marsu_Abril_Maiu_Juñu_Jullu_Agustu_Setembru_Outubru_Novembru_Dezembru'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Fev_Mar_Abr_Mai_Jun_Jul_Ago_Set_Out_Nov_Dez'.split('_'),
+        weekdays: 'Domingu_Segunda_Tersa_Kuarta_Kinta_Sesta_Sabadu'.split('_'),
+        weekdaysShort: 'Dom_Seg_Ters_Kua_Kint_Sest_Sab'.split('_'),
+        weekdaysMin: 'Do_Seg_Te_Ku_Ki_Ses_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Ohin iha] LT',
+            nextDay: '[Aban iha] LT',
+            nextWeek: 'dddd [iha] LT',
+            lastDay: '[Horiseik iha] LT',
+            lastWeek: 'dddd [semana kotuk] [iha] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'iha %s',
+            past: '%s liuba',
+            s: 'segundu balun',
+            ss: 'segundu %d',
+            m: 'minutu ida',
+            mm: 'minutu %d',
+            h: 'oras ida',
+            hh: 'oras %d',
+            d: 'loron ida',
+            dd: 'loron %d',
+            M: 'fulan ida',
+            MM: 'fulan %d',
+            y: 'tinan ida',
+            yy: 'tinan %d',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var suffixes$3 = {
+        0: '-ум',
+        1: '-ум',
+        2: '-юм',
+        3: '-юм',
+        4: '-ум',
+        5: '-ум',
+        6: '-ум',
+        7: '-ум',
+        8: '-ум',
+        9: '-ум',
+        10: '-ум',
+        12: '-ум',
+        13: '-ум',
+        20: '-ум',
+        30: '-юм',
+        40: '-ум',
+        50: '-ум',
+        60: '-ум',
+        70: '-ум',
+        80: '-ум',
+        90: '-ум',
+        100: '-ум',
+    };
+
+    moment.defineLocale('tg', {
+        months: {
+            format: 'январи_феврали_марти_апрели_майи_июни_июли_августи_сентябри_октябри_ноябри_декабри'.split(
+                '_'
+            ),
+            standalone:
+                'январ_феврал_март_апрел_май_июн_июл_август_сентябр_октябр_ноябр_декабр'.split(
+                    '_'
+                ),
+        },
+        monthsShort: 'янв_фев_мар_апр_май_июн_июл_авг_сен_окт_ноя_дек'.split('_'),
+        weekdays: 'якшанбе_душанбе_сешанбе_чоршанбе_панҷшанбе_ҷумъа_шанбе'.split(
+            '_'
+        ),
+        weekdaysShort: 'яшб_дшб_сшб_чшб_пшб_ҷум_шнб'.split('_'),
+        weekdaysMin: 'яш_дш_сш_чш_пш_ҷм_шб'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Имрӯз соати] LT',
+            nextDay: '[Фардо соати] LT',
+            lastDay: '[Дирӯз соати] LT',
+            nextWeek: 'dddd[и] [ҳафтаи оянда соати] LT',
+            lastWeek: 'dddd[и] [ҳафтаи гузашта соати] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'баъди %s',
+            past: '%s пеш',
+            s: 'якчанд сония',
+            m: 'як дақиқа',
+            mm: '%d дақиқа',
+            h: 'як соат',
+            hh: '%d соат',
+            d: 'як рӯз',
+            dd: '%d рӯз',
+            M: 'як моҳ',
+            MM: '%d моҳ',
+            y: 'як сол',
+            yy: '%d сол',
+        },
+        meridiemParse: /шаб|субҳ|рӯз|бегоҳ/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'шаб') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'субҳ') {
+                return hour;
+            } else if (meridiem === 'рӯз') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === 'бегоҳ') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'шаб';
+            } else if (hour < 11) {
+                return 'субҳ';
+            } else if (hour < 16) {
+                return 'рӯз';
+            } else if (hour < 19) {
+                return 'бегоҳ';
+            } else {
+                return 'шаб';
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(ум|юм)/,
+        ordinal: function (number) {
+            var a = number % 10,
+                b = number >= 100 ? 100 : null;
+            return number + (suffixes$3[number] || suffixes$3[a] || suffixes$3[b]);
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 1th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('th', {
+        months: 'มกราคม_กุมภาพันธ์_มีนาคม_เมษายน_พฤษภาคม_มิถุนายน_กรกฎาคม_สิงหาคม_กันยายน_ตุลาคม_พฤศจิกายน_ธันวาคม'.split(
+            '_'
+        ),
+        monthsShort:
+            'ม.ค._ก.พ._มี.ค._เม.ย._พ.ค._มิ.ย._ก.ค._ส.ค._ก.ย._ต.ค._พ.ย._ธ.ค.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'อาทิตย์_จันทร์_อังคาร_พุธ_พฤหัสบดี_ศุกร์_เสาร์'.split('_'),
+        weekdaysShort: 'อาทิตย์_จันทร์_อังคาร_พุธ_พฤหัส_ศุกร์_เสาร์'.split('_'), // yes, three characters difference
+        weekdaysMin: 'อา._จ._อ._พ._พฤ._ศ._ส.'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY เวลา H:mm',
+            LLLL: 'วันddddที่ D MMMM YYYY เวลา H:mm',
+        },
+        meridiemParse: /ก่อนเที่ยง|หลังเที่ยง/,
+        isPM: function (input) {
+            return input === 'หลังเที่ยง';
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ก่อนเที่ยง';
+            } else {
+                return 'หลังเที่ยง';
+            }
+        },
+        calendar: {
+            sameDay: '[วันนี้ เวลา] LT',
+            nextDay: '[พรุ่งนี้ เวลา] LT',
+            nextWeek: 'dddd[หน้า เวลา] LT',
+            lastDay: '[เมื่อวานนี้ เวลา] LT',
+            lastWeek: '[วัน]dddd[ที่แล้ว เวลา] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'อีก %s',
+            past: '%sที่แล้ว',
+            s: 'ไม่กี่วินาที',
+            ss: '%d วินาที',
+            m: '1 นาที',
+            mm: '%d นาที',
+            h: '1 ชั่วโมง',
+            hh: '%d ชั่วโมง',
+            d: '1 วัน',
+            dd: '%d วัน',
+            w: '1 สัปดาห์',
+            ww: '%d สัปดาห์',
+            M: '1 เดือน',
+            MM: '%d เดือน',
+            y: '1 ปี',
+            yy: '%d ปี',
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var suffixes$4 = {
+        1: "'inji",
+        5: "'inji",
+        8: "'inji",
+        70: "'inji",
+        80: "'inji",
+        2: "'nji",
+        7: "'nji",
+        20: "'nji",
+        50: "'nji",
+        3: "'ünji",
+        4: "'ünji",
+        100: "'ünji",
+        6: "'njy",
+        9: "'unjy",
+        10: "'unjy",
+        30: "'unjy",
+        60: "'ynjy",
+        90: "'ynjy",
+    };
+
+    moment.defineLocale('tk', {
+        months: 'Ýanwar_Fewral_Mart_Aprel_Maý_Iýun_Iýul_Awgust_Sentýabr_Oktýabr_Noýabr_Dekabr'.split(
+            '_'
+        ),
+        monthsShort: 'Ýan_Few_Mar_Apr_Maý_Iýn_Iýl_Awg_Sen_Okt_Noý_Dek'.split('_'),
+        weekdays: 'Ýekşenbe_Duşenbe_Sişenbe_Çarşenbe_Penşenbe_Anna_Şenbe'.split(
+            '_'
+        ),
+        weekdaysShort: 'Ýek_Duş_Siş_Çar_Pen_Ann_Şen'.split('_'),
+        weekdaysMin: 'Ýk_Dş_Sş_Çr_Pn_An_Şn'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[bugün sagat] LT',
+            nextDay: '[ertir sagat] LT',
+            nextWeek: '[indiki] dddd [sagat] LT',
+            lastDay: '[düýn] LT',
+            lastWeek: '[geçen] dddd [sagat] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s soň',
+            past: '%s öň',
+            s: 'birnäçe sekunt',
+            m: 'bir minut',
+            mm: '%d minut',
+            h: 'bir sagat',
+            hh: '%d sagat',
+            d: 'bir gün',
+            dd: '%d gün',
+            M: 'bir aý',
+            MM: '%d aý',
+            y: 'bir ýyl',
+            yy: '%d ýyl',
+        },
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'Do':
+                case 'DD':
+                    return number;
+                default:
+                    if (number === 0) {
+                        // special case for zero
+                        return number + "'unjy";
+                    }
+                    var a = number % 10,
+                        b = (number % 100) - a,
+                        c = number >= 100 ? 100 : null;
+                    return number + (suffixes$4[a] || suffixes$4[b] || suffixes$4[c]);
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('tl-ph', {
+        months: 'Enero_Pebrero_Marso_Abril_Mayo_Hunyo_Hulyo_Agosto_Setyembre_Oktubre_Nobyembre_Disyembre'.split(
+            '_'
+        ),
+        monthsShort: 'Ene_Peb_Mar_Abr_May_Hun_Hul_Ago_Set_Okt_Nob_Dis'.split('_'),
+        weekdays: 'Linggo_Lunes_Martes_Miyerkules_Huwebes_Biyernes_Sabado'.split(
+            '_'
+        ),
+        weekdaysShort: 'Lin_Lun_Mar_Miy_Huw_Biy_Sab'.split('_'),
+        weekdaysMin: 'Li_Lu_Ma_Mi_Hu_Bi_Sab'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'MM/D/YYYY',
+            LL: 'MMMM D, YYYY',
+            LLL: 'MMMM D, YYYY HH:mm',
+            LLLL: 'dddd, MMMM DD, YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: 'LT [ngayong araw]',
+            nextDay: '[Bukas ng] LT',
+            nextWeek: 'LT [sa susunod na] dddd',
+            lastDay: 'LT [kahapon]',
+            lastWeek: 'LT [noong nakaraang] dddd',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'sa loob ng %s',
+            past: '%s ang nakalipas',
+            s: 'ilang segundo',
+            ss: '%d segundo',
+            m: 'isang minuto',
+            mm: '%d minuto',
+            h: 'isang oras',
+            hh: '%d oras',
+            d: 'isang araw',
+            dd: '%d araw',
+            M: 'isang buwan',
+            MM: '%d buwan',
+            y: 'isang taon',
+            yy: '%d taon',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}/,
+        ordinal: function (number) {
+            return number;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var numbersNouns = 'pagh_wa’_cha’_wej_loS_vagh_jav_Soch_chorgh_Hut'.split('_');
+
+    function translateFuture(output) {
+        var time = output;
+        time =
+            output.indexOf('jaj') !== -1
+                ? time.slice(0, -3) + 'leS'
+                : output.indexOf('jar') !== -1
+                  ? time.slice(0, -3) + 'waQ'
+                  : output.indexOf('DIS') !== -1
+                    ? time.slice(0, -3) + 'nem'
+                    : time + ' pIq';
+        return time;
+    }
+
+    function translatePast(output) {
+        var time = output;
+        time =
+            output.indexOf('jaj') !== -1
+                ? time.slice(0, -3) + 'Hu’'
+                : output.indexOf('jar') !== -1
+                  ? time.slice(0, -3) + 'wen'
+                  : output.indexOf('DIS') !== -1
+                    ? time.slice(0, -3) + 'ben'
+                    : time + ' ret';
+        return time;
+    }
+
+    function translate$a(number, withoutSuffix, string, isFuture) {
+        var numberNoun = numberAsNoun(number);
+        switch (string) {
+            case 'ss':
+                return numberNoun + ' lup';
+            case 'mm':
+                return numberNoun + ' tup';
+            case 'hh':
+                return numberNoun + ' rep';
+            case 'dd':
+                return numberNoun + ' jaj';
+            case 'MM':
+                return numberNoun + ' jar';
+            case 'yy':
+                return numberNoun + ' DIS';
+        }
+    }
+
+    function numberAsNoun(number) {
+        var hundred = Math.floor((number % 1000) / 100),
+            ten = Math.floor((number % 100) / 10),
+            one = number % 10,
+            word = '';
+        if (hundred > 0) {
+            word += numbersNouns[hundred] + 'vatlh';
+        }
+        if (ten > 0) {
+            word += (word !== '' ? ' ' : '') + numbersNouns[ten] + 'maH';
+        }
+        if (one > 0) {
+            word += (word !== '' ? ' ' : '') + numbersNouns[one];
+        }
+        return word === '' ? 'pagh' : word;
+    }
+
+    moment.defineLocale('tlh', {
+        months: 'tera’ jar wa’_tera’ jar cha’_tera’ jar wej_tera’ jar loS_tera’ jar vagh_tera’ jar jav_tera’ jar Soch_tera’ jar chorgh_tera’ jar Hut_tera’ jar wa’maH_tera’ jar wa’maH wa’_tera’ jar wa’maH cha’'.split(
+            '_'
+        ),
+        monthsShort:
+            'jar wa’_jar cha’_jar wej_jar loS_jar vagh_jar jav_jar Soch_jar chorgh_jar Hut_jar wa’maH_jar wa’maH wa’_jar wa’maH cha’'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'lojmItjaj_DaSjaj_povjaj_ghItlhjaj_loghjaj_buqjaj_ghInjaj'.split(
+            '_'
+        ),
+        weekdaysShort:
+            'lojmItjaj_DaSjaj_povjaj_ghItlhjaj_loghjaj_buqjaj_ghInjaj'.split('_'),
+        weekdaysMin:
+            'lojmItjaj_DaSjaj_povjaj_ghItlhjaj_loghjaj_buqjaj_ghInjaj'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[DaHjaj] LT',
+            nextDay: '[wa’leS] LT',
+            nextWeek: 'LLL',
+            lastDay: '[wa’Hu’] LT',
+            lastWeek: 'LLL',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: translateFuture,
+            past: translatePast,
+            s: 'puS lup',
+            ss: translate$a,
+            m: 'wa’ tup',
+            mm: translate$a,
+            h: 'wa’ rep',
+            hh: translate$a,
+            d: 'wa’ jaj',
+            dd: translate$a,
+            M: 'wa’ jar',
+            MM: translate$a,
+            y: 'wa’ DIS',
+            yy: translate$a,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var suffixes$5 = {
+        1: "'inci",
+        5: "'inci",
+        8: "'inci",
+        70: "'inci",
+        80: "'inci",
+        2: "'nci",
+        7: "'nci",
+        20: "'nci",
+        50: "'nci",
+        3: "'üncü",
+        4: "'üncü",
+        100: "'üncü",
+        6: "'ncı",
+        9: "'uncu",
+        10: "'uncu",
+        30: "'uncu",
+        60: "'ıncı",
+        90: "'ıncı",
+    };
+
+    moment.defineLocale('tr', {
+        months: 'Ocak_Şubat_Mart_Nisan_Mayıs_Haziran_Temmuz_Ağustos_Eylül_Ekim_Kasım_Aralık'.split(
+            '_'
+        ),
+        monthsShort: 'Oca_Şub_Mar_Nis_May_Haz_Tem_Ağu_Eyl_Eki_Kas_Ara'.split('_'),
+        weekdays: 'Pazar_Pazartesi_Salı_Çarşamba_Perşembe_Cuma_Cumartesi'.split(
+            '_'
+        ),
+        weekdaysShort: 'Paz_Pzt_Sal_Çar_Per_Cum_Cmt'.split('_'),
+        weekdaysMin: 'Pz_Pt_Sa_Ça_Pe_Cu_Ct'.split('_'),
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 12) {
+                return isLower ? 'öö' : 'ÖÖ';
+            } else {
+                return isLower ? 'ös' : 'ÖS';
+            }
+        },
+        meridiemParse: /öö|ÖÖ|ös|ÖS/,
+        isPM: function (input) {
+            return input === 'ös' || input === 'ÖS';
+        },
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[bugün saat] LT',
+            nextDay: '[yarın saat] LT',
+            nextWeek: '[gelecek] dddd [saat] LT',
+            lastDay: '[dün] LT',
+            lastWeek: '[geçen] dddd [saat] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s sonra',
+            past: '%s önce',
+            s: 'birkaç saniye',
+            ss: '%d saniye',
+            m: 'bir dakika',
+            mm: '%d dakika',
+            h: 'bir saat',
+            hh: '%d saat',
+            d: 'bir gün',
+            dd: '%d gün',
+            w: 'bir hafta',
+            ww: '%d hafta',
+            M: 'bir ay',
+            MM: '%d ay',
+            y: 'bir yıl',
+            yy: '%d yıl',
+        },
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'Do':
+                case 'DD':
+                    return number;
+                default:
+                    if (number === 0) {
+                        // special case for zero
+                        return number + "'ıncı";
+                    }
+                    var a = number % 10,
+                        b = (number % 100) - a,
+                        c = number >= 100 ? 100 : null;
+                    return number + (suffixes$5[a] || suffixes$5[b] || suffixes$5[c]);
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    // After the year there should be a slash and the amount of years since December 26, 1979 in Roman numerals.
+    // This is currently too difficult (maybe even impossible) to add.
+    moment.defineLocale('tzl', {
+        months: 'Januar_Fevraglh_Març_Avrïu_Mai_Gün_Julia_Guscht_Setemvar_Listopäts_Noemvar_Zecemvar'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Fev_Mar_Avr_Mai_Gün_Jul_Gus_Set_Lis_Noe_Zec'.split('_'),
+        weekdays: 'Súladi_Lúneçi_Maitzi_Márcuri_Xhúadi_Viénerçi_Sáturi'.split('_'),
+        weekdaysShort: 'Súl_Lún_Mai_Már_Xhú_Vié_Sát'.split('_'),
+        weekdaysMin: 'Sú_Lú_Ma_Má_Xh_Vi_Sá'.split('_'),
+        longDateFormat: {
+            LT: 'HH.mm',
+            LTS: 'HH.mm.ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM [dallas] YYYY',
+            LLL: 'D. MMMM [dallas] YYYY HH.mm',
+            LLLL: 'dddd, [li] D. MMMM [dallas] YYYY HH.mm',
+        },
+        meridiemParse: /d\'o|d\'a/i,
+        isPM: function (input) {
+            return "d'o" === input.toLowerCase();
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours > 11) {
+                return isLower ? "d'o" : "D'O";
+            } else {
+                return isLower ? "d'a" : "D'A";
+            }
+        },
+        calendar: {
+            sameDay: '[oxhi à] LT',
+            nextDay: '[demà à] LT',
+            nextWeek: 'dddd [à] LT',
+            lastDay: '[ieiri à] LT',
+            lastWeek: '[sür el] dddd [lasteu à] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'osprei %s',
+            past: 'ja%s',
+            s: processRelativeTime$a,
+            ss: processRelativeTime$a,
+            m: processRelativeTime$a,
+            mm: processRelativeTime$a,
+            h: processRelativeTime$a,
+            hh: processRelativeTime$a,
+            d: processRelativeTime$a,
+            dd: processRelativeTime$a,
+            M: processRelativeTime$a,
+            MM: processRelativeTime$a,
+            y: processRelativeTime$a,
+            yy: processRelativeTime$a,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    function processRelativeTime$a(number, withoutSuffix, key, isFuture) {
+        var format = {
+            s: ['viensas secunds', "'iensas secunds"],
+            ss: [number + ' secunds', '' + number + ' secunds'],
+            m: ["'n míut", "'iens míut"],
+            mm: [number + ' míuts', '' + number + ' míuts'],
+            h: ["'n þora", "'iensa þora"],
+            hh: [number + ' þoras', '' + number + ' þoras'],
+            d: ["'n ziua", "'iensa ziua"],
+            dd: [number + ' ziuas', '' + number + ' ziuas'],
+            M: ["'n mes", "'iens mes"],
+            MM: [number + ' mesen', '' + number + ' mesen'],
+            y: ["'n ar", "'iens ar"],
+            yy: [number + ' ars', '' + number + ' ars'],
+        };
+        return isFuture
+            ? format[key][0]
+            : withoutSuffix
+              ? format[key][0]
+              : format[key][1];
+    }
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('tzm-latn', {
+        months: 'innayr_brˤayrˤ_marˤsˤ_ibrir_mayyw_ywnyw_ywlywz_ɣwšt_šwtanbir_ktˤwbrˤ_nwwanbir_dwjnbir'.split(
+            '_'
+        ),
+        monthsShort:
+            'innayr_brˤayrˤ_marˤsˤ_ibrir_mayyw_ywnyw_ywlywz_ɣwšt_šwtanbir_ktˤwbrˤ_nwwanbir_dwjnbir'.split(
+                '_'
+            ),
+        weekdays: 'asamas_aynas_asinas_akras_akwas_asimwas_asiḍyas'.split('_'),
+        weekdaysShort: 'asamas_aynas_asinas_akras_akwas_asimwas_asiḍyas'.split('_'),
+        weekdaysMin: 'asamas_aynas_asinas_akras_akwas_asimwas_asiḍyas'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[asdkh g] LT',
+            nextDay: '[aska g] LT',
+            nextWeek: 'dddd [g] LT',
+            lastDay: '[assant g] LT',
+            lastWeek: 'dddd [g] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'dadkh s yan %s',
+            past: 'yan %s',
+            s: 'imik',
+            ss: '%d imik',
+            m: 'minuḍ',
+            mm: '%d minuḍ',
+            h: 'saɛa',
+            hh: '%d tassaɛin',
+            d: 'ass',
+            dd: '%d ossan',
+            M: 'ayowr',
+            MM: '%d iyyirn',
+            y: 'asgas',
+            yy: '%d isgasn',
+        },
+        week: {
+            dow: 6, // Saturday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('tzm', {
+        months: 'ⵉⵏⵏⴰⵢⵔ_ⴱⵕⴰⵢⵕ_ⵎⴰⵕⵚ_ⵉⴱⵔⵉⵔ_ⵎⴰⵢⵢⵓ_ⵢⵓⵏⵢⵓ_ⵢⵓⵍⵢⵓⵣ_ⵖⵓⵛⵜ_ⵛⵓⵜⴰⵏⴱⵉⵔ_ⴽⵟⵓⴱⵕ_ⵏⵓⵡⴰⵏⴱⵉⵔ_ⴷⵓⵊⵏⴱⵉⵔ'.split(
+            '_'
+        ),
+        monthsShort:
+            'ⵉⵏⵏⴰⵢⵔ_ⴱⵕⴰⵢⵕ_ⵎⴰⵕⵚ_ⵉⴱⵔⵉⵔ_ⵎⴰⵢⵢⵓ_ⵢⵓⵏⵢⵓ_ⵢⵓⵍⵢⵓⵣ_ⵖⵓⵛⵜ_ⵛⵓⵜⴰⵏⴱⵉⵔ_ⴽⵟⵓⴱⵕ_ⵏⵓⵡⴰⵏⴱⵉⵔ_ⴷⵓⵊⵏⴱⵉⵔ'.split(
+                '_'
+            ),
+        weekdays: 'ⴰⵙⴰⵎⴰⵙ_ⴰⵢⵏⴰⵙ_ⴰⵙⵉⵏⴰⵙ_ⴰⴽⵔⴰⵙ_ⴰⴽⵡⴰⵙ_ⴰⵙⵉⵎⵡⴰⵙ_ⴰⵙⵉⴹⵢⴰⵙ'.split('_'),
+        weekdaysShort: 'ⴰⵙⴰⵎⴰⵙ_ⴰⵢⵏⴰⵙ_ⴰⵙⵉⵏⴰⵙ_ⴰⴽⵔⴰⵙ_ⴰⴽⵡⴰⵙ_ⴰⵙⵉⵎⵡⴰⵙ_ⴰⵙⵉⴹⵢⴰⵙ'.split('_'),
+        weekdaysMin: 'ⴰⵙⴰⵎⴰⵙ_ⴰⵢⵏⴰⵙ_ⴰⵙⵉⵏⴰⵙ_ⴰⴽⵔⴰⵙ_ⴰⴽⵡⴰⵙ_ⴰⵙⵉⵎⵡⴰⵙ_ⴰⵙⵉⴹⵢⴰⵙ'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[ⴰⵙⴷⵅ ⴴ] LT',
+            nextDay: '[ⴰⵙⴽⴰ ⴴ] LT',
+            nextWeek: 'dddd [ⴴ] LT',
+            lastDay: '[ⴰⵚⴰⵏⵜ ⴴ] LT',
+            lastWeek: 'dddd [ⴴ] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'ⴷⴰⴷⵅ ⵙ ⵢⴰⵏ %s',
+            past: 'ⵢⴰⵏ %s',
+            s: 'ⵉⵎⵉⴽ',
+            ss: '%d ⵉⵎⵉⴽ',
+            m: 'ⵎⵉⵏⵓⴺ',
+            mm: '%d ⵎⵉⵏⵓⴺ',
+            h: 'ⵙⴰⵄⴰ',
+            hh: '%d ⵜⴰⵙⵙⴰⵄⵉⵏ',
+            d: 'ⴰⵙⵙ',
+            dd: '%d oⵙⵙⴰⵏ',
+            M: 'ⴰⵢoⵓⵔ',
+            MM: '%d ⵉⵢⵢⵉⵔⵏ',
+            y: 'ⴰⵙⴳⴰⵙ',
+            yy: '%d ⵉⵙⴳⴰⵙⵏ',
+        },
+        week: {
+            dow: 6, // Saturday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('ug-cn', {
+        months: 'يانۋار_فېۋرال_مارت_ئاپرېل_ماي_ئىيۇن_ئىيۇل_ئاۋغۇست_سېنتەبىر_ئۆكتەبىر_نويابىر_دېكابىر'.split(
+            '_'
+        ),
+        monthsShort:
+            'يانۋار_فېۋرال_مارت_ئاپرېل_ماي_ئىيۇن_ئىيۇل_ئاۋغۇست_سېنتەبىر_ئۆكتەبىر_نويابىر_دېكابىر'.split(
+                '_'
+            ),
+        weekdays: 'يەكشەنبە_دۈشەنبە_سەيشەنبە_چارشەنبە_پەيشەنبە_جۈمە_شەنبە'.split(
+            '_'
+        ),
+        weekdaysShort: 'يە_دۈ_سە_چا_پە_جۈ_شە'.split('_'),
+        weekdaysMin: 'يە_دۈ_سە_چا_پە_جۈ_شە'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY-MM-DD',
+            LL: 'YYYY-يىلىM-ئاينىڭD-كۈنى',
+            LLL: 'YYYY-يىلىM-ئاينىڭD-كۈنى، HH:mm',
+            LLLL: 'dddd، YYYY-يىلىM-ئاينىڭD-كۈنى، HH:mm',
+        },
+        meridiemParse: /يېرىم كېچە|سەھەر|چۈشتىن بۇرۇن|چۈش|چۈشتىن كېيىن|كەچ/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (
+                meridiem === 'يېرىم كېچە' ||
+                meridiem === 'سەھەر' ||
+                meridiem === 'چۈشتىن بۇرۇن'
+            ) {
+                return hour;
+            } else if (meridiem === 'چۈشتىن كېيىن' || meridiem === 'كەچ') {
+                return hour + 12;
+            } else {
+                return hour >= 11 ? hour : hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            var hm = hour * 100 + minute;
+            if (hm < 600) {
+                return 'يېرىم كېچە';
+            } else if (hm < 900) {
+                return 'سەھەر';
+            } else if (hm < 1130) {
+                return 'چۈشتىن بۇرۇن';
+            } else if (hm < 1230) {
+                return 'چۈش';
+            } else if (hm < 1800) {
+                return 'چۈشتىن كېيىن';
+            } else {
+                return 'كەچ';
+            }
+        },
+        calendar: {
+            sameDay: '[بۈگۈن سائەت] LT',
+            nextDay: '[ئەتە سائەت] LT',
+            nextWeek: '[كېلەركى] dddd [سائەت] LT',
+            lastDay: '[تۆنۈگۈن] LT',
+            lastWeek: '[ئالدىنقى] dddd [سائەت] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s كېيىن',
+            past: '%s بۇرۇن',
+            s: 'نەچچە سېكونت',
+            ss: '%d سېكونت',
+            m: 'بىر مىنۇت',
+            mm: '%d مىنۇت',
+            h: 'بىر سائەت',
+            hh: '%d سائەت',
+            d: 'بىر كۈن',
+            dd: '%d كۈن',
+            M: 'بىر ئاي',
+            MM: '%d ئاي',
+            y: 'بىر يىل',
+            yy: '%d يىل',
+        },
+
+        dayOfMonthOrdinalParse: /\d{1,2}(-كۈنى|-ئاي|-ھەپتە)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'DDD':
+                    return number + '-كۈنى';
+                case 'w':
+                case 'W':
+                    return number + '-ھەپتە';
+                default:
+                    return number;
+            }
+        },
+        preparse: function (string) {
+            return string.replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string.replace(/,/g, '،');
+        },
+        week: {
+            // GB/T 7408-1994《数据元和交换格式·信息交换·日期和时间表示法》与ISO 8601:1988等效
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 1st is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function plural$6(word, num) {
+        var forms = word.split('_');
+        return num % 10 === 1 && num % 100 !== 11
+            ? forms[0]
+            : num % 10 >= 2 && num % 10 <= 4 && (num % 100 < 10 || num % 100 >= 20)
+              ? forms[1]
+              : forms[2];
+    }
+    function relativeTimeWithPlural$4(number, withoutSuffix, key) {
+        var format = {
+            ss: withoutSuffix ? 'секунда_секунди_секунд' : 'секунду_секунди_секунд',
+            mm: withoutSuffix ? 'хвилина_хвилини_хвилин' : 'хвилину_хвилини_хвилин',
+            hh: withoutSuffix ? 'година_години_годин' : 'годину_години_годин',
+            dd: 'день_дні_днів',
+            MM: 'місяць_місяці_місяців',
+            yy: 'рік_роки_років',
+        };
+        if (key === 'm') {
+            return withoutSuffix ? 'хвилина' : 'хвилину';
+        } else if (key === 'h') {
+            return withoutSuffix ? 'година' : 'годину';
+        } else {
+            return number + ' ' + plural$6(format[key], +number);
+        }
+    }
+    function weekdaysCaseReplace(m, format) {
+        var weekdays = {
+                nominative:
+                    'неділя_понеділок_вівторок_середа_четвер_п’ятниця_субота'.split(
+                        '_'
+                    ),
+                accusative:
+                    'неділю_понеділок_вівторок_середу_четвер_п’ятницю_суботу'.split(
+                        '_'
+                    ),
+                genitive:
+                    'неділі_понеділка_вівторка_середи_четверга_п’ятниці_суботи'.split(
+                        '_'
+                    ),
+            },
+            nounCase;
+
+        if (m === true) {
+            return weekdays['nominative']
+                .slice(1, 7)
+                .concat(weekdays['nominative'].slice(0, 1));
+        }
+        if (!m) {
+            return weekdays['nominative'];
+        }
+
+        nounCase = /(\[[ВвУу]\]) ?dddd/.test(format)
+            ? 'accusative'
+            : /\[?(?:минулої|наступної)? ?\] ?dddd/.test(format)
+              ? 'genitive'
+              : 'nominative';
+        return weekdays[nounCase][m.day()];
+    }
+    function processHoursFunction(str) {
+        return function () {
+            return str + 'о' + (this.hours() === 11 ? 'б' : '') + '] LT';
+        };
+    }
+
+    moment.defineLocale('uk', {
+        months: {
+            format: 'січня_лютого_березня_квітня_травня_червня_липня_серпня_вересня_жовтня_листопада_грудня'.split(
+                '_'
+            ),
+            standalone:
+                'січень_лютий_березень_квітень_травень_червень_липень_серпень_вересень_жовтень_листопад_грудень'.split(
+                    '_'
+                ),
+        },
+        monthsShort: 'січ_лют_бер_квіт_трав_черв_лип_серп_вер_жовт_лист_груд'.split(
+            '_'
+        ),
+        weekdays: weekdaysCaseReplace,
+        weekdaysShort: 'нд_пн_вт_ср_чт_пт_сб'.split('_'),
+        weekdaysMin: 'нд_пн_вт_ср_чт_пт_сб'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY р.',
+            LLL: 'D MMMM YYYY р., HH:mm',
+            LLLL: 'dddd, D MMMM YYYY р., HH:mm',
+        },
+        calendar: {
+            sameDay: processHoursFunction('[Сьогодні '),
+            nextDay: processHoursFunction('[Завтра '),
+            lastDay: processHoursFunction('[Вчора '),
+            nextWeek: processHoursFunction('[У] dddd ['),
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                    case 3:
+                    case 5:
+                    case 6:
+                        return processHoursFunction('[Минулої] dddd [').call(this);
+                    case 1:
+                    case 2:
+                    case 4:
+                        return processHoursFunction('[Минулого] dddd [').call(this);
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'за %s',
+            past: '%s тому',
+            s: 'декілька секунд',
+            ss: relativeTimeWithPlural$4,
+            m: relativeTimeWithPlural$4,
+            mm: relativeTimeWithPlural$4,
+            h: 'годину',
+            hh: relativeTimeWithPlural$4,
+            d: 'день',
+            dd: relativeTimeWithPlural$4,
+            M: 'місяць',
+            MM: relativeTimeWithPlural$4,
+            y: 'рік',
+            yy: relativeTimeWithPlural$4,
+        },
+        // M. E.: those two are virtually unused but a user might want to implement them for his/her website for some reason
+        meridiemParse: /ночі|ранку|дня|вечора/,
+        isPM: function (input) {
+            return /^(дня|вечора)$/.test(input);
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'ночі';
+            } else if (hour < 12) {
+                return 'ранку';
+            } else if (hour < 17) {
+                return 'дня';
+            } else {
+                return 'вечора';
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(й|го)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'M':
+                case 'd':
+                case 'DDD':
+                case 'w':
+                case 'W':
+                    return number + '-й';
+                case 'D':
+                    return number + '-го';
+                default:
+                    return number;
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var months$a = [
+            'جنوری',
+            'فروری',
+            'مارچ',
+            'اپریل',
+            'مئی',
+            'جون',
+            'جولائی',
+            'اگست',
+            'ستمبر',
+            'اکتوبر',
+            'نومبر',
+            'دسمبر',
+        ],
+        days$1 = ['اتوار', 'پیر', 'منگل', 'بدھ', 'جمعرات', 'جمعہ', 'ہفتہ'];
+
+    moment.defineLocale('ur', {
+        months: months$a,
+        monthsShort: months$a,
+        weekdays: days$1,
+        weekdaysShort: days$1,
+        weekdaysMin: days$1,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd، D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /صبح|شام/,
+        isPM: function (input) {
+            return 'شام' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'صبح';
+            }
+            return 'شام';
+        },
+        calendar: {
+            sameDay: '[آج بوقت] LT',
+            nextDay: '[کل بوقت] LT',
+            nextWeek: 'dddd [بوقت] LT',
+            lastDay: '[گذشتہ روز بوقت] LT',
+            lastWeek: '[گذشتہ] dddd [بوقت] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s بعد',
+            past: '%s قبل',
+            s: 'چند سیکنڈ',
+            ss: '%d سیکنڈ',
+            m: 'ایک منٹ',
+            mm: '%d منٹ',
+            h: 'ایک گھنٹہ',
+            hh: '%d گھنٹے',
+            d: 'ایک دن',
+            dd: '%d دن',
+            M: 'ایک ماہ',
+            MM: '%d ماہ',
+            y: 'ایک سال',
+            yy: '%d سال',
+        },
+        preparse: function (string) {
+            return string.replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string.replace(/,/g, '،');
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('uz-latn', {
+        months: 'Yanvar_Fevral_Mart_Aprel_May_Iyun_Iyul_Avgust_Sentabr_Oktabr_Noyabr_Dekabr'.split(
+            '_'
+        ),
+        monthsShort: 'Yan_Fev_Mar_Apr_May_Iyun_Iyul_Avg_Sen_Okt_Noy_Dek'.split('_'),
+        weekdays:
+            'Yakshanba_Dushanba_Seshanba_Chorshanba_Payshanba_Juma_Shanba'.split(
+                '_'
+            ),
+        weekdaysShort: 'Yak_Dush_Sesh_Chor_Pay_Jum_Shan'.split('_'),
+        weekdaysMin: 'Ya_Du_Se_Cho_Pa_Ju_Sha'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'D MMMM YYYY, dddd HH:mm',
+        },
+        calendar: {
+            sameDay: '[Bugun soat] LT [da]',
+            nextDay: '[Ertaga] LT [da]',
+            nextWeek: 'dddd [kuni soat] LT [da]',
+            lastDay: '[Kecha soat] LT [da]',
+            lastWeek: "[O'tgan] dddd [kuni soat] LT [da]",
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'Yaqin %s ichida',
+            past: 'Bir necha %s oldin',
+            s: 'soniya',
+            ss: '%d soniya',
+            m: 'bir daqiqa',
+            mm: '%d daqiqa',
+            h: 'bir soat',
+            hh: '%d soat',
+            d: 'bir kun',
+            dd: '%d kun',
+            M: 'bir oy',
+            MM: '%d oy',
+            y: 'bir yil',
+            yy: '%d yil',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('uz', {
+        months: 'январ_феврал_март_апрел_май_июн_июл_август_сентябр_октябр_ноябр_декабр'.split(
+            '_'
+        ),
+        monthsShort: 'янв_фев_мар_апр_май_июн_июл_авг_сен_окт_ноя_дек'.split('_'),
+        weekdays: 'Якшанба_Душанба_Сешанба_Чоршанба_Пайшанба_Жума_Шанба'.split('_'),
+        weekdaysShort: 'Якш_Душ_Сеш_Чор_Пай_Жум_Шан'.split('_'),
+        weekdaysMin: 'Як_Ду_Се_Чо_Па_Жу_Ша'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'D MMMM YYYY, dddd HH:mm',
+        },
+        calendar: {
+            sameDay: '[Бугун соат] LT [да]',
+            nextDay: '[Эртага] LT [да]',
+            nextWeek: 'dddd [куни соат] LT [да]',
+            lastDay: '[Кеча соат] LT [да]',
+            lastWeek: '[Утган] dddd [куни соат] LT [да]',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'Якин %s ичида',
+            past: 'Бир неча %s олдин',
+            s: 'фурсат',
+            ss: '%d фурсат',
+            m: 'бир дакика',
+            mm: '%d дакика',
+            h: 'бир соат',
+            hh: '%d соат',
+            d: 'бир кун',
+            dd: '%d кун',
+            M: 'бир ой',
+            MM: '%d ой',
+            y: 'бир йил',
+            yy: '%d йил',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('vi', {
+        months: 'tháng 1_tháng 2_tháng 3_tháng 4_tháng 5_tháng 6_tháng 7_tháng 8_tháng 9_tháng 10_tháng 11_tháng 12'.split(
+            '_'
+        ),
+        monthsShort:
+            'Thg 01_Thg 02_Thg 03_Thg 04_Thg 05_Thg 06_Thg 07_Thg 08_Thg 09_Thg 10_Thg 11_Thg 12'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'chủ nhật_thứ hai_thứ ba_thứ tư_thứ năm_thứ sáu_thứ bảy'.split(
+            '_'
+        ),
+        weekdaysShort: 'CN_T2_T3_T4_T5_T6_T7'.split('_'),
+        weekdaysMin: 'CN_T2_T3_T4_T5_T6_T7'.split('_'),
+        weekdaysParseExact: true,
+        meridiemParse: /sa|ch/i,
+        isPM: function (input) {
+            return /^ch$/i.test(input);
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 12) {
+                return isLower ? 'sa' : 'SA';
+            } else {
+                return isLower ? 'ch' : 'CH';
+            }
+        },
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM [năm] YYYY',
+            LLL: 'D MMMM [năm] YYYY HH:mm',
+            LLLL: 'dddd, D MMMM [năm] YYYY HH:mm',
+            l: 'DD/M/YYYY',
+            ll: 'D MMM YYYY',
+            lll: 'D MMM YYYY HH:mm',
+            llll: 'ddd, D MMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Hôm nay lúc] LT',
+            nextDay: '[Ngày mai lúc] LT',
+            nextWeek: 'dddd [tuần tới lúc] LT',
+            lastDay: '[Hôm qua lúc] LT',
+            lastWeek: 'dddd [tuần trước lúc] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s tới',
+            past: '%s trước',
+            s: 'vài giây',
+            ss: '%d giây',
+            m: 'một phút',
+            mm: '%d phút',
+            h: 'một giờ',
+            hh: '%d giờ',
+            d: 'một ngày',
+            dd: '%d ngày',
+            w: 'một tuần',
+            ww: '%d tuần',
+            M: 'một tháng',
+            MM: '%d tháng',
+            y: 'một năm',
+            yy: '%d năm',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}/,
+        ordinal: function (number) {
+            return number;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('x-pseudo', {
+        months: 'J~áñúá~rý_F~ébrú~árý_~Márc~h_Áp~ríl_~Máý_~Júñé~_Júl~ý_Áú~gúst~_Sép~témb~ér_Ó~ctób~ér_Ñ~óvém~bér_~Décé~mbér'.split(
+            '_'
+        ),
+        monthsShort:
+            'J~áñ_~Féb_~Már_~Ápr_~Máý_~Júñ_~Júl_~Áúg_~Sép_~Óct_~Ñóv_~Déc'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays:
+            'S~úñdá~ý_Mó~ñdáý~_Túé~sdáý~_Wéd~ñésd~áý_T~húrs~dáý_~Fríd~áý_S~átúr~dáý'.split(
+                '_'
+            ),
+        weekdaysShort: 'S~úñ_~Móñ_~Túé_~Wéd_~Thú_~Frí_~Sát'.split('_'),
+        weekdaysMin: 'S~ú_Mó~_Tú_~Wé_T~h_Fr~_Sá'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[T~ódá~ý át] LT',
+            nextDay: '[T~ómó~rró~w át] LT',
+            nextWeek: 'dddd [át] LT',
+            lastDay: '[Ý~ést~érdá~ý át] LT',
+            lastWeek: '[L~ást] dddd [át] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'í~ñ %s',
+            past: '%s á~gó',
+            s: 'á ~féw ~sécó~ñds',
+            ss: '%d s~écóñ~ds',
+            m: 'á ~míñ~úté',
+            mm: '%d m~íñú~tés',
+            h: 'á~ñ hó~úr',
+            hh: '%d h~óúrs',
+            d: 'á ~dáý',
+            dd: '%d d~áýs',
+            M: 'á ~móñ~th',
+            MM: '%d m~óñt~hs',
+            y: 'á ~ýéár',
+            yy: '%d ý~éárs',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('yo', {
+        months: 'Sẹ́rẹ́_Èrèlè_Ẹrẹ̀nà_Ìgbé_Èbibi_Òkùdu_Agẹmo_Ògún_Owewe_Ọ̀wàrà_Bélú_Ọ̀pẹ̀̀'.split(
+            '_'
+        ),
+        monthsShort: 'Sẹ́r_Èrl_Ẹrn_Ìgb_Èbi_Òkù_Agẹ_Ògú_Owe_Ọ̀wà_Bél_Ọ̀pẹ̀̀'.split('_'),
+        weekdays: 'Àìkú_Ajé_Ìsẹ́gun_Ọjọ́rú_Ọjọ́bọ_Ẹtì_Àbámẹ́ta'.split('_'),
+        weekdaysShort: 'Àìk_Ajé_Ìsẹ́_Ọjr_Ọjb_Ẹtì_Àbá'.split('_'),
+        weekdaysMin: 'Àì_Aj_Ìs_Ọr_Ọb_Ẹt_Àb'.split('_'),
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY h:mm A',
+            LLLL: 'dddd, D MMMM YYYY h:mm A',
+        },
+        calendar: {
+            sameDay: '[Ònì ni] LT',
+            nextDay: '[Ọ̀la ni] LT',
+            nextWeek: "dddd [Ọsẹ̀ tón'bọ] [ni] LT",
+            lastDay: '[Àna ni] LT',
+            lastWeek: 'dddd [Ọsẹ̀ tólọ́] [ni] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'ní %s',
+            past: '%s kọjá',
+            s: 'ìsẹjú aayá die',
+            ss: 'aayá %d',
+            m: 'ìsẹjú kan',
+            mm: 'ìsẹjú %d',
+            h: 'wákati kan',
+            hh: 'wákati %d',
+            d: 'ọjọ́ kan',
+            dd: 'ọjọ́ %d',
+            M: 'osù kan',
+            MM: 'osù %d',
+            y: 'ọdún kan',
+            yy: 'ọdún %d',
+        },
+        dayOfMonthOrdinalParse: /ọjọ́\s\d{1,2}/,
+        ordinal: 'ọjọ́ %d',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('zh-cn', {
+        months: '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.split(
+            '_'
+        ),
+        monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+            '_'
+        ),
+        weekdays: '星期日_星期一_星期二_星期三_星期四_星期五_星期六'.split('_'),
+        weekdaysShort: '周日_周一_周二_周三_周四_周五_周六'.split('_'),
+        weekdaysMin: '日_一_二_三_四_五_六'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY/MM/DD',
+            LL: 'YYYY年M月D日',
+            LLL: 'YYYY年M月D日Ah点mm分',
+            LLLL: 'YYYY年M月D日ddddAh点mm分',
+            l: 'YYYY/M/D',
+            ll: 'YYYY年M月D日',
+            lll: 'YYYY年M月D日 HH:mm',
+            llll: 'YYYY年M月D日dddd HH:mm',
+        },
+        meridiemParse: /凌晨|早上|上午|中午|下午|晚上/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === '凌晨' || meridiem === '早上' || meridiem === '上午') {
+                return hour;
+            } else if (meridiem === '下午' || meridiem === '晚上') {
+                return hour + 12;
+            } else {
+                // '中午'
+                return hour >= 11 ? hour : hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            var hm = hour * 100 + minute;
+            if (hm < 600) {
+                return '凌晨';
+            } else if (hm < 900) {
+                return '早上';
+            } else if (hm < 1130) {
+                return '上午';
+            } else if (hm < 1230) {
+                return '中午';
+            } else if (hm < 1800) {
+                return '下午';
+            } else {
+                return '晚上';
+            }
+        },
+        calendar: {
+            sameDay: '[今天]LT',
+            nextDay: '[明天]LT',
+            nextWeek: function (now) {
+                if (now.week() !== this.week()) {
+                    return '[下]dddLT';
+                } else {
+                    return '[本]dddLT';
+                }
+            },
+            lastDay: '[昨天]LT',
+            lastWeek: function (now) {
+                if (this.week() !== now.week()) {
+                    return '[上]dddLT';
+                } else {
+                    return '[本]dddLT';
+                }
+            },
+            sameElse: 'L',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(日|月|周)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'DDD':
+                    return number + '日';
+                case 'M':
+                    return number + '月';
+                case 'w':
+                case 'W':
+                    return number + '周';
+                default:
+                    return number;
+            }
+        },
+        relativeTime: {
+            future: '%s后',
+            past: '%s前',
+            s: '几秒',
+            ss: '%d 秒',
+            m: '1 分钟',
+            mm: '%d 分钟',
+            h: '1 小时',
+            hh: '%d 小时',
+            d: '1 天',
+            dd: '%d 天',
+            w: '1 周',
+            ww: '%d 周',
+            M: '1 个月',
+            MM: '%d 个月',
+            y: '1 年',
+            yy: '%d 年',
+        },
+        week: {
+            // GB/T 7408-1994《数据元和交换格式·信息交换·日期和时间表示法》与ISO 8601:1988等效
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('zh-hk', {
+        months: '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.split(
+            '_'
+        ),
+        monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+            '_'
+        ),
+        weekdays: '星期日_星期一_星期二_星期三_星期四_星期五_星期六'.split('_'),
+        weekdaysShort: '週日_週一_週二_週三_週四_週五_週六'.split('_'),
+        weekdaysMin: '日_一_二_三_四_五_六'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY/MM/DD',
+            LL: 'YYYY年M月D日',
+            LLL: 'YYYY年M月D日 HH:mm',
+            LLLL: 'YYYY年M月D日dddd HH:mm',
+            l: 'YYYY/M/D',
+            ll: 'YYYY年M月D日',
+            lll: 'YYYY年M月D日 HH:mm',
+            llll: 'YYYY年M月D日dddd HH:mm',
+        },
+        meridiemParse: /凌晨|早上|上午|中午|下午|晚上/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === '凌晨' || meridiem === '早上' || meridiem === '上午') {
+                return hour;
+            } else if (meridiem === '中午') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === '下午' || meridiem === '晚上') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            var hm = hour * 100 + minute;
+            if (hm < 600) {
+                return '凌晨';
+            } else if (hm < 900) {
+                return '早上';
+            } else if (hm < 1200) {
+                return '上午';
+            } else if (hm === 1200) {
+                return '中午';
+            } else if (hm < 1800) {
+                return '下午';
+            } else {
+                return '晚上';
+            }
+        },
+        calendar: {
+            sameDay: '[今天]LT',
+            nextDay: '[明天]LT',
+            nextWeek: '[下]ddddLT',
+            lastDay: '[昨天]LT',
+            lastWeek: '[上]ddddLT',
+            sameElse: 'L',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(日|月|週)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'DDD':
+                    return number + '日';
+                case 'M':
+                    return number + '月';
+                case 'w':
+                case 'W':
+                    return number + '週';
+                default:
+                    return number;
+            }
+        },
+        relativeTime: {
+            future: '%s後',
+            past: '%s前',
+            s: '幾秒',
+            ss: '%d 秒',
+            m: '1 分鐘',
+            mm: '%d 分鐘',
+            h: '1 小時',
+            hh: '%d 小時',
+            d: '1 天',
+            dd: '%d 天',
+            M: '1 個月',
+            MM: '%d 個月',
+            y: '1 年',
+            yy: '%d 年',
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('zh-mo', {
+        months: '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.split(
+            '_'
+        ),
+        monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+            '_'
+        ),
+        weekdays: '星期日_星期一_星期二_星期三_星期四_星期五_星期六'.split('_'),
+        weekdaysShort: '週日_週一_週二_週三_週四_週五_週六'.split('_'),
+        weekdaysMin: '日_一_二_三_四_五_六'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'YYYY年M月D日',
+            LLL: 'YYYY年M月D日 HH:mm',
+            LLLL: 'YYYY年M月D日dddd HH:mm',
+            l: 'D/M/YYYY',
+            ll: 'YYYY年M月D日',
+            lll: 'YYYY年M月D日 HH:mm',
+            llll: 'YYYY年M月D日dddd HH:mm',
+        },
+        meridiemParse: /凌晨|早上|上午|中午|下午|晚上/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === '凌晨' || meridiem === '早上' || meridiem === '上午') {
+                return hour;
+            } else if (meridiem === '中午') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === '下午' || meridiem === '晚上') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            var hm = hour * 100 + minute;
+            if (hm < 600) {
+                return '凌晨';
+            } else if (hm < 900) {
+                return '早上';
+            } else if (hm < 1130) {
+                return '上午';
+            } else if (hm < 1230) {
+                return '中午';
+            } else if (hm < 1800) {
+                return '下午';
+            } else {
+                return '晚上';
+            }
+        },
+        calendar: {
+            sameDay: '[今天] LT',
+            nextDay: '[明天] LT',
+            nextWeek: '[下]dddd LT',
+            lastDay: '[昨天] LT',
+            lastWeek: '[上]dddd LT',
+            sameElse: 'L',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(日|月|週)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'DDD':
+                    return number + '日';
+                case 'M':
+                    return number + '月';
+                case 'w':
+                case 'W':
+                    return number + '週';
+                default:
+                    return number;
+            }
+        },
+        relativeTime: {
+            future: '%s內',
+            past: '%s前',
+            s: '幾秒',
+            ss: '%d 秒',
+            m: '1 分鐘',
+            mm: '%d 分鐘',
+            h: '1 小時',
+            hh: '%d 小時',
+            d: '1 天',
+            dd: '%d 天',
+            M: '1 個月',
+            MM: '%d 個月',
+            y: '1 年',
+            yy: '%d 年',
+        },
+    });
+
+    //! moment.js locale configuration
+
+    moment.defineLocale('zh-tw', {
+        months: '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.split(
+            '_'
+        ),
+        monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+            '_'
+        ),
+        weekdays: '星期日_星期一_星期二_星期三_星期四_星期五_星期六'.split('_'),
+        weekdaysShort: '週日_週一_週二_週三_週四_週五_週六'.split('_'),
+        weekdaysMin: '日_一_二_三_四_五_六'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY/MM/DD',
+            LL: 'YYYY年M月D日',
+            LLL: 'YYYY年M月D日 HH:mm',
+            LLLL: 'YYYY年M月D日dddd HH:mm',
+            l: 'YYYY/M/D',
+            ll: 'YYYY年M月D日',
+            lll: 'YYYY年M月D日 HH:mm',
+            llll: 'YYYY年M月D日dddd HH:mm',
+        },
+        meridiemParse: /凌晨|早上|上午|中午|下午|晚上/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === '凌晨' || meridiem === '早上' || meridiem === '上午') {
+                return hour;
+            } else if (meridiem === '中午') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === '下午' || meridiem === '晚上') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            var hm = hour * 100 + minute;
+            if (hm < 600) {
+                return '凌晨';
+            } else if (hm < 900) {
+                return '早上';
+            } else if (hm < 1130) {
+                return '上午';
+            } else if (hm < 1230) {
+                return '中午';
+            } else if (hm < 1800) {
+                return '下午';
+            } else {
+                return '晚上';
+            }
+        },
+        calendar: {
+            sameDay: '[今天] LT',
+            nextDay: '[明天] LT',
+            nextWeek: '[下]dddd LT',
+            lastDay: '[昨天] LT',
+            lastWeek: '[上]dddd LT',
+            sameElse: 'L',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(日|月|週)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'DDD':
+                    return number + '日';
+                case 'M':
+                    return number + '月';
+                case 'w':
+                case 'W':
+                    return number + '週';
+                default:
+                    return number;
+            }
+        },
+        relativeTime: {
+            future: '%s後',
+            past: '%s前',
+            s: '幾秒',
+            ss: '%d 秒',
+            m: '1 分鐘',
+            mm: '%d 分鐘',
+            h: '1 小時',
+            hh: '%d 小時',
+            d: '1 天',
+            dd: '%d 天',
+            M: '1 個月',
+            MM: '%d 個月',
+            y: '1 年',
+            yy: '%d 年',
+        },
+    });
+
+    moment.locale('en');
+
+    return moment;
+
+})));
diff --git a/backend/node_modules/moment/min/locales.min.js b/backend/node_modules/moment/min/locales.min.js
new file mode 100644
index 0000000..49c47f5
--- /dev/null
+++ b/backend/node_modules/moment/min/locales.min.js
@@ -0,0 +1,2 @@
+!function(e,a){"object"==typeof exports&&"undefined"!=typeof module&&"function"==typeof require?a(require("../moment")):"function"==typeof define&&define.amd?define(["../moment"],a):a(e.moment)}(this,function(e){"use strict";e.defineLocale("af",{months:"Januarie_Februarie_Maart_April_Mei_Junie_Julie_Augustus_September_Oktober_November_Desember".split("_"),monthsShort:"Jan_Feb_Mrt_Apr_Mei_Jun_Jul_Aug_Sep_Okt_Nov_Des".split("_"),weekdays:"Sondag_Maandag_Dinsdag_Woensdag_Donderdag_Vrydag_Saterdag".split("_"),weekdaysShort:"Son_Maa_Din_Woe_Don_Vry_Sat".split("_"),weekdaysMin:"So_Ma_Di_Wo_Do_Vr_Sa".split("_"),meridiemParse:/vm|nm/i,isPM:function(e){return/^nm$/i.test(e)},meridiem:function(e,a,_){return e<12?_?"vm":"VM":_?"nm":"NM"},longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd, D MMMM YYYY HH:mm"},calendar:{sameDay:"[Vandag om] LT",nextDay:"[M\xf4re om] LT",nextWeek:"dddd [om] LT",lastDay:"[Gister om] LT",lastWeek:"[Laas] dddd 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e}},week:{dow:1,doy:7}}),e.defineLocale("bg",{months:"\u044f\u043d\u0443\u0430\u0440\u0438_\u0444\u0435\u0432\u0440\u0443\u0430\u0440\u0438_\u043c\u0430\u0440\u0442_\u0430\u043f\u0440\u0438\u043b_\u043c\u0430\u0439_\u044e\u043d\u0438_\u044e\u043b\u0438_\u0430\u0432\u0433\u0443\u0441\u0442_\u0441\u0435\u043f\u0442\u0435\u043c\u0432\u0440\u0438_\u043e\u043a\u0442\u043e\u043c\u0432\u0440\u0438_\u043d\u043e\u0435\u043c\u0432\u0440\u0438_\u0434\u0435\u043a\u0435\u043c\u0432\u0440\u0438".split("_"),monthsShort:"\u044f\u043d\u0443_\u0444\u0435\u0432_\u043c\u0430\u0440_\u0430\u043f\u0440_\u043c\u0430\u0439_\u044e\u043d\u0438_\u044e\u043b\u0438_\u0430\u0432\u0433_\u0441\u0435\u043f_\u043e\u043a\u0442_\u043d\u043e\u0435_\u0434\u0435\u043a".split("_"),weekdays:"\u043d\u0435\u0434\u0435\u043b\u044f_\u043f\u043e\u043d\u0435\u0434\u0435\u043b\u043d\u0438\u043a_\u0432\u0442\u043e\u0440\u043d\u0438\u043a_\u0441\u0440\u044f\u0434\u0430_\u0447\u0435\u0442\u0432\u044a\u0440\u0442\u044a\u043a_\u043f\u0435\u0442\u044a\u043a_\u0441\u044a\u0431\u043e\u0442\u0430".split("_"),weekdaysShort:"\u043d\u0435\u0434_\u043f\u043e\u043d_\u0432\u0442\u043e_\u0441\u0440\u044f_\u0447\u0435\u0442_\u043f\u0435\u0442_\u0441\u044a\u0431".split("_"),weekdaysMin:"\u043d\u0434_\u043f\u043d_\u0432\u0442_\u0441\u0440_\u0447\u0442_\u043f\u0442_\u0441\u0431".split("_"),longDateFormat:{LT:"H:mm",LTS:"H:mm:ss",L:"D.MM.YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY H:mm",LLLL:"dddd, D MMMM YYYY H:mm"},calendar:{sameDay:"[\u0414\u043d\u0435\u0441 \u0432] LT",nextDay:"[\u0423\u0442\u0440\u0435 \u0432] LT",nextWeek:"dddd [\u0432] LT",lastDay:"[\u0412\u0447\u0435\u0440\u0430 \u0432] LT",lastWeek:function(){switch(this.day()){case 0:case 3:case 6:return"[\u041c\u0438\u043d\u0430\u043b\u0430\u0442\u0430] dddd [\u0432] LT";case 1:case 2:case 4:case 5:return"[\u041c\u0438\u043d\u0430\u043b\u0438\u044f] dddd [\u0432] LT"}},sameElse:"L"},relativeTime:{future:"\u0441\u043b\u0435\u0434 %s",past:"\u043f\u0440\u0435\u0434\u0438 %s",s:"\u043d\u044f\u043a\u043e\u043b\u043a\u043e \u0441\u0435\u043a\u0443\u043d\u0434\u0438",ss:"%d \u0441\u0435\u043a\u0443\u043d\u0434\u0438",m:"\u043c\u0438\u043d\u0443\u0442\u0430",mm:"%d \u043c\u0438\u043d\u0443\u0442\u0438",h:"\u0447\u0430\u0441",hh:"%d \u0447\u0430\u0441\u0430",d:"\u0434\u0435\u043d",dd:"%d \u0434\u0435\u043d\u0430",w:"\u0441\u0435\u0434\u043c\u0438\u0446\u0430",ww:"%d 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0===e?e+"-\u0435\u0432":0==_?e+"-\u0435\u043d":10<_&&_<20?e+"-\u0442\u0438":1==a?e+"-\u0432\u0438":2==a?e+"-\u0440\u0438":7==a||8==a?e+"-\u043c\u0438":e+"-\u0442\u0438"},week:{dow:1,doy:7}}),e.defineLocale("bm",{months:"Zanwuyekalo_Fewuruyekalo_Marisikalo_Awirilikalo_M\u025bkalo_Zuw\u025bnkalo_Zuluyekalo_Utikalo_S\u025btanburukalo_\u0254kut\u0254burukalo_Nowanburukalo_Desanburukalo".split("_"),monthsShort:"Zan_Few_Mar_Awi_M\u025b_Zuw_Zul_Uti_S\u025bt_\u0254ku_Now_Des".split("_"),weekdays:"Kari_Nt\u025bn\u025bn_Tarata_Araba_Alamisa_Juma_Sibiri".split("_"),weekdaysShort:"Kar_Nt\u025b_Tar_Ara_Ala_Jum_Sib".split("_"),weekdaysMin:"Ka_Nt_Ta_Ar_Al_Ju_Si".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"MMMM [tile] D [san] YYYY",LLL:"MMMM [tile] D [san] YYYY [l\u025br\u025b] HH:mm",LLLL:"dddd MMMM [tile] D [san] YYYY [l\u025br\u025b] HH:mm"},calendar:{sameDay:"[Bi l\u025br\u025b] LT",nextDay:"[Sini l\u025br\u025b] LT",nextWeek:"dddd [don l\u025br\u025b] LT",lastDay:"[Kunu l\u025br\u025b] LT",lastWeek:"dddd [t\u025bm\u025bnen l\u025br\u025b] LT",sameElse:"L"},relativeTime:{future:"%s k\u0254n\u0254",past:"a b\u025b %s b\u0254",s:"sanga dama dama",ss:"sekondi %d",m:"miniti kelen",mm:"miniti %d",h:"l\u025br\u025b kelen",hh:"l\u025br\u025b %d",d:"tile kelen",dd:"tile %d",M:"kalo kelen",MM:"kalo %d",y:"san kelen",yy:"san %d"},week:{dow:1,doy:4}});var 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h:mm \u09b8\u09ae\u09df",LTS:"A h:mm:ss \u09b8\u09ae\u09df",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY, A h:mm \u09b8\u09ae\u09df",LLLL:"dddd, D MMMM YYYY, A h:mm \u09b8\u09ae\u09df"},calendar:{sameDay:"[\u0986\u099c] LT",nextDay:"[\u0986\u0997\u09be\u09ae\u09c0\u0995\u09be\u09b2] LT",nextWeek:"dddd, LT",lastDay:"[\u0997\u09a4\u0995\u09be\u09b2] LT",lastWeek:"[\u0997\u09a4] dddd, LT",sameElse:"L"},relativeTime:{future:"%s \u09aa\u09b0\u09c7",past:"%s \u0986\u0997\u09c7",s:"\u0995\u09df\u09c7\u0995 \u09b8\u09c7\u0995\u09c7\u09a8\u09cd\u09a1",ss:"%d \u09b8\u09c7\u0995\u09c7\u09a8\u09cd\u09a1",m:"\u098f\u0995 \u09ae\u09bf\u09a8\u09bf\u099f",mm:"%d \u09ae\u09bf\u09a8\u09bf\u099f",h:"\u098f\u0995 \u0998\u09a8\u09cd\u099f\u09be",hh:"%d \u0998\u09a8\u09cd\u099f\u09be",d:"\u098f\u0995 \u09a6\u09bf\u09a8",dd:"%d \u09a6\u09bf\u09a8",M:"\u098f\u0995 \u09ae\u09be\u09b8",MM:"%d \u09ae\u09be\u09b8",y:"\u098f\u0995 \u09ac\u099b\u09b0",yy:"%d \u09ac\u099b\u09b0"},preparse:function(e){return e.replace(/[\u09e7\u09e8\u09e9\u09ea\u09eb\u09ec\u09ed\u09ee\u09ef\u09e6]/g,function(e){return V[e]})},postformat:function(e){return e.replace(/\d/g,function(e){return Q[e]})},meridiemParse:/\u09b0\u09be\u09a4|\u09ad\u09cb\u09b0|\u09b8\u0995\u09be\u09b2|\u09a6\u09c1\u09aa\u09c1\u09b0|\u09ac\u09bf\u0995\u09be\u09b2|\u09b8\u09a8\u09cd\u09a7\u09cd\u09af\u09be|\u09b0\u09be\u09a4/,meridiemHour:function(e,a){return 12===e&&(e=0),"\u09b0\u09be\u09a4"===a?e<4?e:e+12:"\u09ad\u09cb\u09b0"===a||"\u09b8\u0995\u09be\u09b2"===a?e:"\u09a6\u09c1\u09aa\u09c1\u09b0"===a?3<=e?e:e+12:"\u09ac\u09bf\u0995\u09be\u09b2"===a||"\u09b8\u09a8\u09cd\u09a7\u09cd\u09af\u09be"===a?e+12:void 0},meridiem:function(e,a,_){return 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e.replace(/,/g,"\u060c")},week:{dow:7,doy:12}}),e.defineLocale("el",{monthsNominativeEl:"\u0399\u03b1\u03bd\u03bf\u03c5\u03ac\u03c1\u03b9\u03bf\u03c2_\u03a6\u03b5\u03b2\u03c1\u03bf\u03c5\u03ac\u03c1\u03b9\u03bf\u03c2_\u039c\u03ac\u03c1\u03c4\u03b9\u03bf\u03c2_\u0391\u03c0\u03c1\u03af\u03bb\u03b9\u03bf\u03c2_\u039c\u03ac\u03b9\u03bf\u03c2_\u0399\u03bf\u03cd\u03bd\u03b9\u03bf\u03c2_\u0399\u03bf\u03cd\u03bb\u03b9\u03bf\u03c2_\u0391\u03cd\u03b3\u03bf\u03c5\u03c3\u03c4\u03bf\u03c2_\u03a3\u03b5\u03c0\u03c4\u03ad\u03bc\u03b2\u03c1\u03b9\u03bf\u03c2_\u039f\u03ba\u03c4\u03ce\u03b2\u03c1\u03b9\u03bf\u03c2_\u039d\u03bf\u03ad\u03bc\u03b2\u03c1\u03b9\u03bf\u03c2_\u0394\u03b5\u03ba\u03ad\u03bc\u03b2\u03c1\u03b9\u03bf\u03c2".split("_"),monthsGenitiveEl:"\u0399\u03b1\u03bd\u03bf\u03c5\u03b1\u03c1\u03af\u03bf\u03c5_\u03a6\u03b5\u03b2\u03c1\u03bf\u03c5\u03b1\u03c1\u03af\u03bf\u03c5_\u039c\u03b1\u03c1\u03c4\u03af\u03bf\u03c5_\u0391\u03c0\u03c1\u03b9\u03bb\u03af\u03bf\u03c5_\u039c\u03b1\u0390\u03bf\u03c5_\u0399\u03bf\u03c5\u03bd\u03af\u03bf\u03c5_\u0399\u03bf\u03c5\u03bb\u03af\u03bf\u03c5_\u0391\u03c5\u03b3\u03bf\u03cd\u03c3\u03c4\u03bf\u03c5_\u03a3\u03b5\u03c0\u03c4\u03b5\u03bc\u03b2\u03c1\u03af\u03bf\u03c5_\u039f\u03ba\u03c4\u03c9\u03b2\u03c1\u03af\u03bf\u03c5_\u039d\u03bf\u03b5\u03bc\u03b2\u03c1\u03af\u03bf\u03c5_\u0394\u03b5\u03ba\u03b5\u03bc\u03b2\u03c1\u03af\u03bf\u03c5".split("_"),months:function(e,a){return 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seconds",m:"a minute",mm:"%d minutes",h:"an hour",hh:"%d hours",d:"a day",dd:"%d days",M:"a month",MM:"%d months",y:"a year",yy:"%d years"},dayOfMonthOrdinalParse:/\d{1,2}(st|nd|rd|th)/,ordinal:function(e){var a=e%10;return e+(1==~~(e%100/10)?"th":1==a?"st":2==a?"nd":3==a?"rd":"th")},week:{dow:1,doy:4}}),e.defineLocale("en-il",{months:"January_February_March_April_May_June_July_August_September_October_November_December".split("_"),monthsShort:"Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec".split("_"),weekdays:"Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday".split("_"),weekdaysShort:"Sun_Mon_Tue_Wed_Thu_Fri_Sat".split("_"),weekdaysMin:"Su_Mo_Tu_We_Th_Fr_Sa".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd, D MMMM YYYY HH:mm"},calendar:{sameDay:"[Today at] LT",nextDay:"[Tomorrow at] LT",nextWeek:"dddd [at] LT",lastDay:"[Yesterday at] LT",lastWeek:"[Last] dddd [at] 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anos"},dayOfMonthOrdinalParse:/\d{1,2}\xba/,ordinal:"%d\xba",week:{dow:1,doy:4}}),e.defineLocale("gom-deva",{months:{standalone:"\u091c\u093e\u0928\u0947\u0935\u093e\u0930\u0940_\u092b\u0947\u092c\u094d\u0930\u0941\u0935\u093e\u0930\u0940_\u092e\u093e\u0930\u094d\u091a_\u090f\u092a\u094d\u0930\u0940\u0932_\u092e\u0947_\u091c\u0942\u0928_\u091c\u0941\u0932\u092f_\u0911\u0917\u0938\u094d\u091f_\u0938\u092a\u094d\u091f\u0947\u0902\u092c\u0930_\u0911\u0915\u094d\u091f\u094b\u092c\u0930_\u0928\u094b\u0935\u094d\u0939\u0947\u0902\u092c\u0930_\u0921\u093f\u0938\u0947\u0902\u092c\u0930".split("_"),format:"\u091c\u093e\u0928\u0947\u0935\u093e\u0930\u0940\u091a\u094d\u092f\u093e_\u092b\u0947\u092c\u094d\u0930\u0941\u0935\u093e\u0930\u0940\u091a\u094d\u092f\u093e_\u092e\u093e\u0930\u094d\u091a\u093e\u091a\u094d\u092f\u093e_\u090f\u092a\u094d\u0930\u0940\u0932\u093e\u091a\u094d\u092f\u093e_\u092e\u0947\u092f\u093e\u091a\u094d\u092f\u093e_\u091c\u0942\u0928\u093e\u091a\u094d\u092f\u093e_\u091c\u0941\u0932\u092f\u093e\u091a\u094d\u092f\u093e_\u0911\u0917\u0938\u094d\u091f\u093e\u091a\u094d\u092f\u093e_\u0938\u092a\u094d\u091f\u0947\u0902\u092c\u0930\u093e\u091a\u094d\u092f\u093e_\u0911\u0915\u094d\u091f\u094b\u092c\u0930\u093e\u091a\u094d\u092f\u093e_\u0928\u094b\u0935\u094d\u0939\u0947\u0902\u092c\u0930\u093e\u091a\u094d\u092f\u093e_\u0921\u093f\u0938\u0947\u0902\u092c\u0930\u093e\u091a\u094d\u092f\u093e".split("_"),isFormat:/MMMM(\s)+D[oD]?/},monthsShort:"\u091c\u093e\u0928\u0947._\u092b\u0947\u092c\u094d\u0930\u0941._\u092e\u093e\u0930\u094d\u091a_\u090f\u092a\u094d\u0930\u0940._\u092e\u0947_\u091c\u0942\u0928_\u091c\u0941\u0932._\u0911\u0917._\u0938\u092a\u094d\u091f\u0947\u0902._\u0911\u0915\u094d\u091f\u094b._\u0928\u094b\u0935\u094d\u0939\u0947\u0902._\u0921\u093f\u0938\u0947\u0902.".split("_"),monthsParseExact:!0,weekdays:"\u0906\u092f\u0924\u093e\u0930_\u0938\u094b\u092e\u093e\u0930_\u092e\u0902\u0917\u0933\u093e\u0930_\u092c\u0941\u0927\u0935\u093e\u0930_\u092c\u093f\u0930\u0947\u0938\u094d\u0924\u093e\u0930_\u0938\u0941\u0915\u094d\u0930\u093e\u0930_\u0936\u0947\u0928\u0935\u093e\u0930".split("_"),weekdaysShort:"\u0906\u092f\u0924._\u0938\u094b\u092e._\u092e\u0902\u0917\u0933._\u092c\u0941\u0927._\u092c\u094d\u0930\u0947\u0938\u094d\u0924._\u0938\u0941\u0915\u094d\u0930._\u0936\u0947\u0928.".split("_"),weekdaysMin:"\u0906_\u0938\u094b_\u092e\u0902_\u092c\u0941_\u092c\u094d\u0930\u0947_\u0938\u0941_\u0936\u0947".split("_"),weekdaysParseExact:!0,longDateFormat:{LT:"A 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\u0ab5\u0ab0\u0acd\u0ab7",yy:"%d \u0ab5\u0ab0\u0acd\u0ab7"},preparse:function(e){return e.replace(/[\u0ae7\u0ae8\u0ae9\u0aea\u0aeb\u0aec\u0aed\u0aee\u0aef\u0ae6]/g,function(e){return ce[e]})},postformat:function(e){return e.replace(/\d/g,function(e){return ye[e]})},meridiemParse:/\u0ab0\u0abe\u0aa4|\u0aac\u0aaa\u0acb\u0ab0|\u0ab8\u0ab5\u0abe\u0ab0|\u0ab8\u0abe\u0a82\u0a9c/,meridiemHour:function(e,a){return 12===e&&(e=0),"\u0ab0\u0abe\u0aa4"===a?e<4?e:e+12:"\u0ab8\u0ab5\u0abe\u0ab0"===a?e:"\u0aac\u0aaa\u0acb\u0ab0"===a?10<=e?e:e+12:"\u0ab8\u0abe\u0a82\u0a9c"===a?e+12:void 0},meridiem:function(e,a,_){return e<4?"\u0ab0\u0abe\u0aa4":e<10?"\u0ab8\u0ab5\u0abe\u0ab0":e<17?"\u0aac\u0aaa\u0acb\u0ab0":e<20?"\u0ab8\u0abe\u0a82\u0a9c":"\u0ab0\u0abe\u0aa4"},week:{dow:0,doy:6}}),e.defineLocale("he",{months:"\u05d9\u05e0\u05d5\u05d0\u05e8_\u05e4\u05d1\u05e8\u05d5\u05d0\u05e8_\u05de\u05e8\u05e5_\u05d0\u05e4\u05e8\u05d9\u05dc_\u05de\u05d0\u05d9_\u05d9\u05d5\u05e0\u05d9_\u05d9\u05d5\u05dc\u05d9_\u05d0\u05d5\u05d2\u05d5\u05e1\u05d8_\u05e1\u05e4\u05d8\u05de\u05d1\u05e8_\u05d0\u05d5\u05e7\u05d8\u05d5\u05d1\u05e8_\u05e0\u05d5\u05d1\u05de\u05d1\u05e8_\u05d3\u05e6\u05de\u05d1\u05e8".split("_"),monthsShort:"\u05d9\u05e0\u05d5\u05f3_\u05e4\u05d1\u05e8\u05f3_\u05de\u05e8\u05e5_\u05d0\u05e4\u05e8\u05f3_\u05de\u05d0\u05d9_\u05d9\u05d5\u05e0\u05d9_\u05d9\u05d5\u05dc\u05d9_\u05d0\u05d5\u05d2\u05f3_\u05e1\u05e4\u05d8\u05f3_\u05d0\u05d5\u05e7\u05f3_\u05e0\u05d5\u05d1\u05f3_\u05d3\u05e6\u05de\u05f3".split("_"),weekdays:"\u05e8\u05d0\u05e9\u05d5\u05df_\u05e9\u05e0\u05d9_\u05e9\u05dc\u05d9\u05e9\u05d9_\u05e8\u05d1\u05d9\u05e2\u05d9_\u05d7\u05de\u05d9\u05e9\u05d9_\u05e9\u05d9\u05e9\u05d9_\u05e9\u05d1\u05ea".split("_"),weekdaysShort:"\u05d0\u05f3_\u05d1\u05f3_\u05d2\u05f3_\u05d3\u05f3_\u05d4\u05f3_\u05d5\u05f3_\u05e9\u05f3".split("_"),weekdaysMin:"\u05d0_\u05d1_\u05d2_\u05d3_\u05d4_\u05d5_\u05e9".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D [\u05d1]MMMM YYYY",LLL:"D [\u05d1]MMMM YYYY HH:mm",LLLL:"dddd, D [\u05d1]MMMM YYYY HH:mm",l:"D/M/YYYY",ll:"D MMM YYYY",lll:"D MMM YYYY HH:mm",llll:"ddd, D MMM YYYY HH:mm"},calendar:{sameDay:"[\u05d4\u05d9\u05d5\u05dd \u05d1\u05be]LT",nextDay:"[\u05de\u05d7\u05e8 \u05d1\u05be]LT",nextWeek:"dddd [\u05d1\u05e9\u05e2\u05d4] LT",lastDay:"[\u05d0\u05ea\u05de\u05d5\u05dc \u05d1\u05be]LT",lastWeek:"[\u05d1\u05d9\u05d5\u05dd] dddd [\u05d4\u05d0\u05d7\u05e8\u05d5\u05df \u05d1\u05e9\u05e2\u05d4] LT",sameElse:"L"},relativeTime:{future:"\u05d1\u05e2\u05d5\u05d3 %s",past:"\u05dc\u05e4\u05e0\u05d9 %s",s:"\u05de\u05e1\u05e4\u05e8 \u05e9\u05e0\u05d9\u05d5\u05ea",ss:"%d \u05e9\u05e0\u05d9\u05d5\u05ea",m:"\u05d3\u05e7\u05d4",mm:"%d \u05d3\u05e7\u05d5\u05ea",h:"\u05e9\u05e2\u05d4",hh:function(e){return 2===e?"\u05e9\u05e2\u05ea\u05d9\u05d9\u05dd":e+" \u05e9\u05e2\u05d5\u05ea"},d:"\u05d9\u05d5\u05dd",dd:function(e){return 2===e?"\u05d9\u05d5\u05de\u05d9\u05d9\u05dd":e+" 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s+=1===e?"sekunda":2===e||3===e||4===e?"sekunde":"sekundi";case"m":return a?"jedna minuta":"jedne minute";case"mm":return s+=1!==e&&(2===e||3===e||4===e)?"minute":"minuta";case"h":return a?"jedan sat":"jednog sata";case"hh":return s+=1===e?"sat":2===e||3===e||4===e?"sata":"sati";case"dd":return s+=1===e?"dan":"dana";case"MM":return s+=1===e?"mjesec":2===e||3===e||4===e?"mjeseca":"mjeseci";case"yy":return s+=1!==e&&(2===e||3===e||4===e)?"godine":"godina"}}e.defineLocale("hi",{months:{format:"\u091c\u0928\u0935\u0930\u0940_\u092b\u093c\u0930\u0935\u0930\u0940_\u092e\u093e\u0930\u094d\u091a_\u0905\u092a\u094d\u0930\u0948\u0932_\u092e\u0908_\u091c\u0942\u0928_\u091c\u0941\u0932\u093e\u0908_\u0905\u0917\u0938\u094d\u0924_\u0938\u093f\u0924\u092e\u094d\u092c\u0930_\u0905\u0915\u094d\u091f\u0942\u092c\u0930_\u0928\u0935\u092e\u094d\u092c\u0930_\u0926\u093f\u0938\u092e\u094d\u092c\u0930".split("_"),standalone:"\u091c\u0928\u0935\u0930\u0940_\u092b\u0930\u0935\u0930\u0940_\u092e\u093e\u0930\u094d\u091a_\u0905\u092a\u094d\u0930\u0948\u0932_\u092e\u0908_\u091c\u0942\u0928_\u091c\u0941\u0932\u093e\u0908_\u0905\u0917\u0938\u094d\u0924_\u0938\u093f\u0924\u0902\u092c\u0930_\u0905\u0915\u094d\u091f\u0942\u092c\u0930_\u0928\u0935\u0902\u092c\u0930_\u0926\u093f\u0938\u0902\u092c\u0930".split("_")},monthsShort:"\u091c\u0928._\u092b\u093c\u0930._\u092e\u093e\u0930\u094d\u091a_\u0905\u092a\u094d\u0930\u0948._\u092e\u0908_\u091c\u0942\u0928_\u091c\u0941\u0932._\u0905\u0917._\u0938\u093f\u0924._\u0905\u0915\u094d\u091f\u0942._\u0928\u0935._\u0926\u093f\u0938.".split("_"),weekdays:"\u0930\u0935\u093f\u0935\u093e\u0930_\u0938\u094b\u092e\u0935\u093e\u0930_\u092e\u0902\u0917\u0932\u0935\u093e\u0930_\u092c\u0941\u0927\u0935\u093e\u0930_\u0917\u0941\u0930\u0942\u0935\u093e\u0930_\u0936\u0941\u0915\u094d\u0930\u0935\u093e\u0930_\u0936\u0928\u093f\u0935\u093e\u0930".split("_"),weekdaysShort:"\u0930\u0935\u093f_\u0938\u094b\u092e_\u092e\u0902\u0917\u0932_\u092c\u0941\u0927_\u0917\u0941\u0930\u0942_\u0936\u0941\u0915\u094d\u0930_\u0936\u0928\u093f".split("_"),weekdaysMin:"\u0930_\u0938\u094b_\u092e\u0902_\u092c\u0941_\u0917\u0941_\u0936\u0941_\u0936".split("_"),longDateFormat:{LT:"A h:mm \u092c\u091c\u0947",LTS:"A h:mm:ss \u092c\u091c\u0947",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY, A h:mm \u092c\u091c\u0947",LLLL:"dddd, D MMMM YYYY, A h:mm \u092c\u091c\u0947"},monthsParse:r,longMonthsParse:r,shortMonthsParse:[/^\u091c\u0928/i,/^\u092b\u093c\u0930/i,/^\u092e\u093e\u0930\u094d\u091a/i,/^\u0905\u092a\u094d\u0930\u0948/i,/^\u092e\u0908/i,/^\u091c\u0942\u0928/i,/^\u091c\u0941\u0932/i,/^\u0905\u0917/i,/^\u0938\u093f\u0924/i,/^\u0905\u0915\u094d\u091f\u0942/i,/^\u0928\u0935/i,/^\u0926\u093f\u0938/i],monthsRegex:/^(\u091c\u0928\u0935\u0930\u0940|\u091c\u0928\.?|\u092b\u093c\u0930\u0935\u0930\u0940|\u092b\u0930\u0935\u0930\u0940|\u092b\u093c\u0930\.?|\u092e\u093e\u0930\u094d\u091a?|\u0905\u092a\u094d\u0930\u0948\u0932|\u0905\u092a\u094d\u0930\u0948\.?|\u092e\u0908?|\u091c\u0942\u0928?|\u091c\u0941\u0932\u093e\u0908|\u091c\u0941\u0932\.?|\u0905\u0917\u0938\u094d\u0924|\u0905\u0917\.?|\u0938\u093f\u0924\u092e\u094d\u092c\u0930|\u0938\u093f\u0924\u0902\u092c\u0930|\u0938\u093f\u0924\.?|\u0905\u0915\u094d\u091f\u0942\u092c\u0930|\u0905\u0915\u094d\u091f\u0942\.?|\u0928\u0935\u092e\u094d\u092c\u0930|\u0928\u0935\u0902\u092c\u0930|\u0928\u0935\.?|\u0926\u093f\u0938\u092e\u094d\u092c\u0930|\u0926\u093f\u0938\u0902\u092c\u0930|\u0926\u093f\u0938\.?)/i,monthsShortRegex:/^(\u091c\u0928\u0935\u0930\u0940|\u091c\u0928\.?|\u092b\u093c\u0930\u0935\u0930\u0940|\u092b\u0930\u0935\u0930\u0940|\u092b\u093c\u0930\.?|\u092e\u093e\u0930\u094d\u091a?|\u0905\u092a\u094d\u0930\u0948\u0932|\u0905\u092a\u094d\u0930\u0948\.?|\u092e\u0908?|\u091c\u0942\u0928?|\u091c\u0941\u0932\u093e\u0908|\u091c\u0941\u0932\.?|\u0905\u0917\u0938\u094d\u0924|\u0905\u0917\.?|\u0938\u093f\u0924\u092e\u094d\u092c\u0930|\u0938\u093f\u0924\u0902\u092c\u0930|\u0938\u093f\u0924\.?|\u0905\u0915\u094d\u091f\u0942\u092c\u0930|\u0905\u0915\u094d\u091f\u0942\.?|\u0928\u0935\u092e\u094d\u092c\u0930|\u0928\u0935\u0902\u092c\u0930|\u0928\u0935\.?|\u0926\u093f\u0938\u092e\u094d\u092c\u0930|\u0926\u093f\u0938\u0902\u092c\u0930|\u0926\u093f\u0938\.?)/i,monthsStrictRegex:/^(\u091c\u0928\u0935\u0930\u0940?|\u092b\u093c\u0930\u0935\u0930\u0940|\u092b\u0930\u0935\u0930\u0940?|\u092e\u093e\u0930\u094d\u091a?|\u0905\u092a\u094d\u0930\u0948\u0932?|\u092e\u0908?|\u091c\u0942\u0928?|\u091c\u0941\u0932\u093e\u0908?|\u0905\u0917\u0938\u094d\u0924?|\u0938\u093f\u0924\u092e\u094d\u092c\u0930|\u0938\u093f\u0924\u0902\u092c\u0930|\u0938\u093f\u0924?\.?|\u0905\u0915\u094d\u091f\u0942\u092c\u0930|\u0905\u0915\u094d\u091f\u0942\.?|\u0928\u0935\u092e\u094d\u092c\u0930|\u0928\u0935\u0902\u092c\u0930?|\u0926\u093f\u0938\u092e\u094d\u092c\u0930|\u0926\u093f\u0938\u0902\u092c\u0930?)/i,monthsShortStrictRegex:/^(\u091c\u0928\.?|\u092b\u093c\u0930\.?|\u092e\u093e\u0930\u094d\u091a?|\u0905\u092a\u094d\u0930\u0948\.?|\u092e\u0908?|\u091c\u0942\u0928?|\u091c\u0941\u0932\.?|\u0905\u0917\.?|\u0938\u093f\u0924\.?|\u0905\u0915\u094d\u091f\u0942\.?|\u0928\u0935\.?|\u0926\u093f\u0938\.?)/i,calendar:{sameDay:"[\u0906\u091c] LT",nextDay:"[\u0915\u0932] LT",nextWeek:"dddd, LT",lastDay:"[\u0915\u0932] LT",lastWeek:"[\u092a\u093f\u091b\u0932\u0947] dddd, LT",sameElse:"L"},relativeTime:{future:"%s \u092e\u0947\u0902",past:"%s \u092a\u0939\u0932\u0947",s:"\u0915\u0941\u091b \u0939\u0940 \u0915\u094d\u0937\u0923",ss:"%d \u0938\u0947\u0915\u0902\u0921",m:"\u090f\u0915 \u092e\u093f\u0928\u091f",mm:"%d \u092e\u093f\u0928\u091f",h:"\u090f\u0915 \u0918\u0902\u091f\u093e",hh:"%d \u0918\u0902\u091f\u0947",d:"\u090f\u0915 \u0926\u093f\u0928",dd:"%d \u0926\u093f\u0928",M:"\u090f\u0915 \u092e\u0939\u0940\u0928\u0947",MM:"%d \u092e\u0939\u0940\u0928\u0947",y:"\u090f\u0915 \u0935\u0930\u094d\u0937",yy:"%d \u0935\u0930\u094d\u0937"},preparse:function(e){return e.replace(/[\u0967\u0968\u0969\u096a\u096b\u096c\u096d\u096e\u096f\u0966]/g,function(e){return De[e]})},postformat:function(e){return e.replace(/\d/g,function(e){return ke[e]})},meridiemParse:/\u0930\u093e\u0924|\u0938\u0941\u092c\u0939|\u0926\u094b\u092a\u0939\u0930|\u0936\u093e\u092e/,meridiemHour:function(e,a){return 12===e&&(e=0),"\u0930\u093e\u0924"===a?e<4?e:e+12:"\u0938\u0941\u092c\u0939"===a?e:"\u0926\u094b\u092a\u0939\u0930"===a?10<=e?e:e+12:"\u0936\u093e\u092e"===a?e+12:void 0},meridiem:function(e,a,_){return e<4?"\u0930\u093e\u0924":e<10?"\u0938\u0941\u092c\u0939":e<17?"\u0926\u094b\u092a\u0939\u0930":e<20?"\u0936\u093e\u092e":"\u0930\u093e\u0924"},week:{dow:0,doy:6}}),e.defineLocale("hr",{months:{format:"sije\u010dnja_velja\u010de_o\u017eujka_travnja_svibnja_lipnja_srpnja_kolovoza_rujna_listopada_studenoga_prosinca".split("_"),standalone:"sije\u010danj_velja\u010da_o\u017eujak_travanj_svibanj_lipanj_srpanj_kolovoz_rujan_listopad_studeni_prosinac".split("_")},monthsShort:"sij._velj._o\u017eu._tra._svi._lip._srp._kol._ruj._lis._stu._pro.".split("_"),monthsParseExact:!0,weekdays:"nedjelja_ponedjeljak_utorak_srijeda_\u010detvrtak_petak_subota".split("_"),weekdaysShort:"ned._pon._uto._sri._\u010det._pet._sub.".split("_"),weekdaysMin:"ne_po_ut_sr_\u010de_pe_su".split("_"),weekdaysParseExact:!0,longDateFormat:{LT:"H:mm",LTS:"H:mm:ss",L:"DD.MM.YYYY",LL:"Do MMMM YYYY",LLL:"Do MMMM YYYY H:mm",LLLL:"dddd, Do MMMM YYYY H:mm"},calendar:{sameDay:"[danas u] LT",nextDay:"[sutra u] LT",nextWeek:function(){switch(this.day()){case 0:return"[u] [nedjelju] [u] LT";case 3:return"[u] [srijedu] [u] LT";case 6:return"[u] [subotu] [u] LT";case 1:case 2:case 4:case 5:return"[u] dddd [u] LT"}},lastDay:"[ju\u010der u] LT",lastWeek:function(){switch(this.day()){case 0:return"[pro\u0161lu] [nedjelju] [u] LT";case 3:return"[pro\u0161lu] [srijedu] [u] LT";case 6:return"[pro\u0161le] [subote] [u] LT";case 1:case 2:case 4:case 5:return"[pro\u0161li] dddd [u] LT"}},sameElse:"L"},relativeTime:{future:"za %s",past:"prije %s",s:"par sekundi",ss:k,m:k,mm:k,h:k,hh:k,d:"dan",dd:k,M:"mjesec",MM:k,y:"godinu",yy:k},dayOfMonthOrdinalParse:/\d{1,2}\./,ordinal:"%d.",week:{dow:1,doy:7}});var pe="vas\xe1rnap h\xe9tf\u0151n kedden szerd\xe1n cs\xfct\xf6rt\xf6k\xf6n p\xe9nteken szombaton".split(" ");function D(e,a,_,s){var d=e;switch(_){case"s":return s||a?"n\xe9h\xe1ny m\xe1sodperc":"n\xe9h\xe1ny m\xe1sodperce";case"ss":return d+(s||a)?" m\xe1sodperc":" m\xe1sodperce";case"m":return"egy"+(s||a?" perc":" perce");case"mm":return d+(s||a?" perc":" perce");case"h":return"egy"+(s||a?" \xf3ra":" \xf3r\xe1ja");case"hh":return d+(s||a?" \xf3ra":" \xf3r\xe1ja");case"d":return"egy"+(s||a?" nap":" napja");case"dd":return d+(s||a?" nap":" napja");case"M":return"egy"+(s||a?" h\xf3nap":" h\xf3napja");case"MM":return d+(s||a?" h\xf3nap":" h\xf3napja");case"y":return"egy"+(s||a?" \xe9v":" \xe9ve");case"yy":return d+(s||a?" \xe9v":" \xe9ve")}return""}function Te(e){return(e?"":"[m\xfalt] ")+"["+pe[this.day()]+"] LT[-kor]"}function fe(e){return e%100==11||e%10!=1}function p(e,a,_,s){var d=e+" ";switch(_){case"s":return a||s?"nokkrar sek\xfandur":"nokkrum sek\xfandum";case"ss":return fe(e)?d+(a||s?"sek\xfandur":"sek\xfandum"):d+"sek\xfanda";case"m":return a?"m\xedn\xfata":"m\xedn\xfatu";case"mm":return fe(e)?d+(a||s?"m\xedn\xfatur":"m\xedn\xfatum"):a?d+"m\xedn\xfata":d+"m\xedn\xfatu";case"hh":return fe(e)?d+(a||s?"klukkustundir":"klukkustundum"):d+"klukkustund";case"d":return a?"dagur":s?"dag":"degi";case"dd":return fe(e)?a?d+"dagar":d+(s?"daga":"d\xf6gum"):a?d+"dagur":d+(s?"dag":"degi");case"M":return a?"m\xe1nu\xf0ur":s?"m\xe1nu\xf0":"m\xe1nu\xf0i";case"MM":return fe(e)?a?d+"m\xe1nu\xf0ir":d+(s?"m\xe1nu\xf0i":"m\xe1nu\xf0um"):a?d+"m\xe1nu\xf0ur":d+(s?"m\xe1nu\xf0":"m\xe1nu\xf0i");case"y":return a||s?"\xe1r":"\xe1ri";case"yy":return fe(e)?d+(a||s?"\xe1r":"\xe1rum"):d+(a||s?"\xe1r":"\xe1ri")}}e.defineLocale("hu",{months:"janu\xe1r_febru\xe1r_m\xe1rcius_\xe1prilis_m\xe1jus_j\xfanius_j\xfalius_augusztus_szeptember_okt\xf3ber_november_december".split("_"),monthsShort:"jan._feb._m\xe1rc._\xe1pr._m\xe1j._j\xfan._j\xfal._aug._szept._okt._nov._dec.".split("_"),monthsParseExact:!0,weekdays:"vas\xe1rnap_h\xe9tf\u0151_kedd_szerda_cs\xfct\xf6rt\xf6k_p\xe9ntek_szombat".split("_"),weekdaysShort:"vas_h\xe9t_kedd_sze_cs\xfct_p\xe9n_szo".split("_"),weekdaysMin:"v_h_k_sze_cs_p_szo".split("_"),longDateFormat:{LT:"H:mm",LTS:"H:mm:ss",L:"YYYY.MM.DD.",LL:"YYYY. MMMM D.",LLL:"YYYY. MMMM D. H:mm",LLLL:"YYYY. MMMM D., dddd H:mm"},meridiemParse:/de|du/i,isPM:function(e){return"u"===e.charAt(1).toLowerCase()},meridiem:function(e,a,_){return e<12?!0===_?"de":"DE":!0===_?"du":"DU"},calendar:{sameDay:"[ma] LT[-kor]",nextDay:"[holnap] LT[-kor]",nextWeek:function(){return Te.call(this,!0)},lastDay:"[tegnap] LT[-kor]",lastWeek:function(){return Te.call(this,!1)},sameElse:"L"},relativeTime:{future:"%s m\xfalva",past:"%s",s:D,ss:D,m:D,mm:D,h:D,hh:D,d:D,dd:D,M:D,MM:D,y:D,yy:D},dayOfMonthOrdinalParse:/\d{1,2}\./,ordinal:"%d.",week:{dow:1,doy:4}}),e.defineLocale("hy-am",{months:{format:"\u0570\u0578\u0582\u0576\u057e\u0561\u0580\u056b_\u0583\u0565\u057f\u0580\u057e\u0561\u0580\u056b_\u0574\u0561\u0580\u057f\u056b_\u0561\u057a\u0580\u056b\u056c\u056b_\u0574\u0561\u0575\u056b\u057d\u056b_\u0570\u0578\u0582\u0576\u056b\u057d\u056b_\u0570\u0578\u0582\u056c\u056b\u057d\u056b_\u0585\u0563\u0578\u057d\u057f\u0578\u057d\u056b_\u057d\u0565\u057a\u057f\u0565\u0574\u0562\u0565\u0580\u056b_\u0570\u0578\u056f\u057f\u0565\u0574\u0562\u0565\u0580\u056b_\u0576\u0578\u0575\u0565\u0574\u0562\u0565\u0580\u056b_\u0564\u0565\u056f\u057f\u0565\u0574\u0562\u0565\u0580\u056b".split("_"),standalone:"\u0570\u0578\u0582\u0576\u057e\u0561\u0580_\u0583\u0565\u057f\u0580\u057e\u0561\u0580_\u0574\u0561\u0580\u057f_\u0561\u057a\u0580\u056b\u056c_\u0574\u0561\u0575\u056b\u057d_\u0570\u0578\u0582\u0576\u056b\u057d_\u0570\u0578\u0582\u056c\u056b\u057d_\u0585\u0563\u0578\u057d\u057f\u0578\u057d_\u057d\u0565\u057a\u057f\u0565\u0574\u0562\u0565\u0580_\u0570\u0578\u056f\u057f\u0565\u0574\u0562\u0565\u0580_\u0576\u0578\u0575\u0565\u0574\u0562\u0565\u0580_\u0564\u0565\u056f\u057f\u0565\u0574\u0562\u0565\u0580".split("_")},monthsShort:"\u0570\u0576\u057e_\u0583\u057f\u0580_\u0574\u0580\u057f_\u0561\u057a\u0580_\u0574\u0575\u057d_\u0570\u0576\u057d_\u0570\u056c\u057d_\u0585\u0563\u057d_\u057d\u057a\u057f_\u0570\u056f\u057f_\u0576\u0574\u0562_\u0564\u056f\u057f".split("_"),weekdays:"\u056f\u056b\u0580\u0561\u056f\u056b_\u0565\u0580\u056f\u0578\u0582\u0577\u0561\u0562\u0569\u056b_\u0565\u0580\u0565\u0584\u0577\u0561\u0562\u0569\u056b_\u0579\u0578\u0580\u0565\u0584\u0577\u0561\u0562\u0569\u056b_\u0570\u056b\u0576\u0563\u0577\u0561\u0562\u0569\u056b_\u0578\u0582\u0580\u0562\u0561\u0569_\u0577\u0561\u0562\u0561\u0569".split("_"),weekdaysShort:"\u056f\u0580\u056f_\u0565\u0580\u056f_\u0565\u0580\u0584_\u0579\u0580\u0584_\u0570\u0576\u0563_\u0578\u0582\u0580\u0562_\u0577\u0562\u0569".split("_"),weekdaysMin:"\u056f\u0580\u056f_\u0565\u0580\u056f_\u0565\u0580\u0584_\u0579\u0580\u0584_\u0570\u0576\u0563_\u0578\u0582\u0580\u0562_\u0577\u0562\u0569".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD.MM.YYYY",LL:"D MMMM YYYY \u0569.",LLL:"D MMMM YYYY \u0569., HH:mm",LLLL:"dddd, D MMMM YYYY \u0569., HH:mm"},calendar:{sameDay:"[\u0561\u0575\u057d\u0585\u0580] LT",nextDay:"[\u057e\u0561\u0572\u0568] LT",lastDay:"[\u0565\u0580\u0565\u056f] LT",nextWeek:function(){return"dddd [\u0585\u0580\u0568 \u056a\u0561\u0574\u0568] LT"},lastWeek:function(){return"[\u0561\u0576\u0581\u0561\u056e] dddd [\u0585\u0580\u0568 \u056a\u0561\u0574\u0568] LT"},sameElse:"L"},relativeTime:{future:"%s \u0570\u0565\u057f\u0578",past:"%s \u0561\u057c\u0561\u057b",s:"\u0574\u056b \u0584\u0561\u0576\u056b \u057e\u0561\u0575\u0580\u056f\u0575\u0561\u0576",ss:"%d \u057e\u0561\u0575\u0580\u056f\u0575\u0561\u0576",m:"\u0580\u0578\u057a\u0565",mm:"%d \u0580\u0578\u057a\u0565",h:"\u056a\u0561\u0574",hh:"%d \u056a\u0561\u0574",d:"\u0585\u0580",dd:"%d \u0585\u0580",M:"\u0561\u0574\u056b\u057d",MM:"%d \u0561\u0574\u056b\u057d",y:"\u057f\u0561\u0580\u056b",yy:"%d \u057f\u0561\u0580\u056b"},meridiemParse:/\u0563\u056b\u0577\u0565\u0580\u057e\u0561|\u0561\u057c\u0561\u057e\u0578\u057f\u057e\u0561|\u0581\u0565\u0580\u0565\u056f\u057e\u0561|\u0565\u0580\u0565\u056f\u0578\u0575\u0561\u0576/,isPM:function(e){return/^(\u0581\u0565\u0580\u0565\u056f\u057e\u0561|\u0565\u0580\u0565\u056f\u0578\u0575\u0561\u0576)$/.test(e)},meridiem:function(e){return e<4?"\u0563\u056b\u0577\u0565\u0580\u057e\u0561":e<12?"\u0561\u057c\u0561\u057e\u0578\u057f\u057e\u0561":e<17?"\u0581\u0565\u0580\u0565\u056f\u057e\u0561":"\u0565\u0580\u0565\u056f\u0578\u0575\u0561\u0576"},dayOfMonthOrdinalParse:/\d{1,2}|\d{1,2}-(\u056b\u0576|\u0580\u0564)/,ordinal:function(e,a){switch(a){case"DDD":case"w":case"W":case"DDDo":return 1===e?e+"-\u056b\u0576":e+"-\u0580\u0564";default:return e}},week:{dow:1,doy:7}}),e.defineLocale("id",{months:"Januari_Februari_Maret_April_Mei_Juni_Juli_Agustus_September_Oktober_November_Desember".split("_"),monthsShort:"Jan_Feb_Mar_Apr_Mei_Jun_Jul_Agt_Sep_Okt_Nov_Des".split("_"),weekdays:"Minggu_Senin_Selasa_Rabu_Kamis_Jumat_Sabtu".split("_"),weekdaysShort:"Min_Sen_Sel_Rab_Kam_Jum_Sab".split("_"),weekdaysMin:"Mg_Sn_Sl_Rb_Km_Jm_Sb".split("_"),longDateFormat:{LT:"HH.mm",LTS:"HH.mm.ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY [pukul] HH.mm",LLLL:"dddd, D MMMM YYYY [pukul] HH.mm"},meridiemParse:/pagi|siang|sore|malam/,meridiemHour:function(e,a){return 12===e&&(e=0),"pagi"===a?e:"siang"===a?11<=e?e:e+12:"sore"===a||"malam"===a?e+12:void 0},meridiem:function(e,a,_){return e<11?"pagi":e<15?"siang":e<19?"sore":"malam"},calendar:{sameDay:"[Hari ini pukul] LT",nextDay:"[Besok pukul] LT",nextWeek:"dddd [pukul] LT",lastDay:"[Kemarin pukul] LT",lastWeek:"dddd [lalu pukul] LT",sameElse:"L"},relativeTime:{future:"dalam %s",past:"%s yang lalu",s:"beberapa detik",ss:"%d detik",m:"semenit",mm:"%d menit",h:"sejam",hh:"%d jam",d:"sehari",dd:"%d hari",M:"sebulan",MM:"%d bulan",y:"setahun",yy:"%d tahun"},week:{dow:0,doy:6}}),e.defineLocale("is",{months:"jan\xfaar_febr\xfaar_mars_apr\xedl_ma\xed_j\xfan\xed_j\xfal\xed_\xe1g\xfast_september_okt\xf3ber_n\xf3vember_desember".split("_"),monthsShort:"jan_feb_mar_apr_ma\xed_j\xfan_j\xfal_\xe1g\xfa_sep_okt_n\xf3v_des".split("_"),weekdays:"sunnudagur_m\xe1nudagur_\xferi\xf0judagur_mi\xf0vikudagur_fimmtudagur_f\xf6studagur_laugardagur".split("_"),weekdaysShort:"sun_m\xe1n_\xferi_mi\xf0_fim_f\xf6s_lau".split("_"),weekdaysMin:"Su_M\xe1_\xder_Mi_Fi_F\xf6_La".split("_"),longDateFormat:{LT:"H:mm",LTS:"H:mm:ss",L:"DD.MM.YYYY",LL:"D. MMMM YYYY",LLL:"D. MMMM YYYY [kl.] H:mm",LLLL:"dddd, D. MMMM YYYY [kl.] H:mm"},calendar:{sameDay:"[\xed dag kl.] LT",nextDay:"[\xe1 morgun kl.] LT",nextWeek:"dddd [kl.] LT",lastDay:"[\xed g\xe6r kl.] LT",lastWeek:"[s\xed\xf0asta] dddd [kl.] LT",sameElse:"L"},relativeTime:{future:"eftir %s",past:"fyrir %s s\xed\xf0an",s:p,ss:p,m:p,mm:p,h:"klukkustund",hh:p,d:p,dd:p,M:p,MM:p,y:p,yy:p},dayOfMonthOrdinalParse:/\d{1,2}\./,ordinal:"%d.",week:{dow:1,doy:4}}),e.defineLocale("it-ch",{months:"gennaio_febbraio_marzo_aprile_maggio_giugno_luglio_agosto_settembre_ottobre_novembre_dicembre".split("_"),monthsShort:"gen_feb_mar_apr_mag_giu_lug_ago_set_ott_nov_dic".split("_"),weekdays:"domenica_luned\xec_marted\xec_mercoled\xec_gioved\xec_venerd\xec_sabato".split("_"),weekdaysShort:"dom_lun_mar_mer_gio_ven_sab".split("_"),weekdaysMin:"do_lu_ma_me_gi_ve_sa".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD.MM.YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd D MMMM YYYY HH:mm"},calendar:{sameDay:"[Oggi alle] LT",nextDay:"[Domani alle] LT",nextWeek:"dddd [alle] LT",lastDay:"[Ieri alle] LT",lastWeek:function(){switch(this.day()){case 0:return"[la scorsa] dddd [alle] LT";default:return"[lo scorso] dddd [alle] LT"}},sameElse:"L"},relativeTime:{future:function(e){return(/^[0-9].+$/.test(e)?"tra":"in")+" "+e},past:"%s fa",s:"alcuni secondi",ss:"%d secondi",m:"un minuto",mm:"%d minuti",h:"un'ora",hh:"%d ore",d:"un giorno",dd:"%d giorni",M:"un mese",MM:"%d mesi",y:"un anno",yy:"%d anni"},dayOfMonthOrdinalParse:/\d{1,2}\xba/,ordinal:"%d\xba",week:{dow:1,doy:4}}),e.defineLocale("it",{months:"gennaio_febbraio_marzo_aprile_maggio_giugno_luglio_agosto_settembre_ottobre_novembre_dicembre".split("_"),monthsShort:"gen_feb_mar_apr_mag_giu_lug_ago_set_ott_nov_dic".split("_"),weekdays:"domenica_luned\xec_marted\xec_mercoled\xec_gioved\xec_venerd\xec_sabato".split("_"),weekdaysShort:"dom_lun_mar_mer_gio_ven_sab".split("_"),weekdaysMin:"do_lu_ma_me_gi_ve_sa".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd D MMMM YYYY HH:mm"},calendar:{sameDay:function(){return"[Oggi a"+(1<this.hours()?"lle ":0===this.hours()?" ":"ll'")+"]LT"},nextDay:function(){return"[Domani a"+(1<this.hours()?"lle ":0===this.hours()?" ":"ll'")+"]LT"},nextWeek:function(){return"dddd [a"+(1<this.hours()?"lle ":0===this.hours()?" ":"ll'")+"]LT"},lastDay:function(){return"[Ieri a"+(1<this.hours()?"lle ":0===this.hours()?" ":"ll'")+"]LT"},lastWeek:function(){switch(this.day()){case 0:return"[La scorsa] dddd [a"+(1<this.hours()?"lle ":0===this.hours()?" ":"ll'")+"]LT";default:return"[Lo scorso] dddd [a"+(1<this.hours()?"lle ":0===this.hours()?" ":"ll'")+"]LT"}},sameElse:"L"},relativeTime:{future:"tra %s",past:"%s fa",s:"alcuni secondi",ss:"%d secondi",m:"un minuto",mm:"%d minuti",h:"un'ora",hh:"%d ore",d:"un giorno",dd:"%d giorni",w:"una settimana",ww:"%d settimane",M:"un mese",MM:"%d mesi",y:"un anno",yy:"%d anni"},dayOfMonthOrdinalParse:/\d{1,2}\xba/,ordinal:"%d\xba",week:{dow:1,doy:4}}),e.defineLocale("ja",{eras:[{since:"2019-05-01",offset:1,name:"\u4ee4\u548c",narrow:"\u32ff",abbr:"R"},{since:"1989-01-08",until:"2019-04-30",offset:1,name:"\u5e73\u6210",narrow:"\u337b",abbr:"H"},{since:"1926-12-25",until:"1989-01-07",offset:1,name:"\u662d\u548c",narrow:"\u337c",abbr:"S"},{since:"1912-07-30",until:"1926-12-24",offset:1,name:"\u5927\u6b63",narrow:"\u337d",abbr:"T"},{since:"1873-01-01",until:"1912-07-29",offset:6,name:"\u660e\u6cbb",narrow:"\u337e",abbr:"M"},{since:"0001-01-01",until:"1873-12-31",offset:1,name:"\u897f\u66a6",narrow:"AD",abbr:"AD"},{since:"0000-12-31",until:-1/0,offset:1,name:"\u7d00\u5143\u524d",narrow:"BC",abbr:"BC"}],eraYearOrdinalRegex:/(\u5143|\d+)\u5e74/,eraYearOrdinalParse:function(e,a){return"\u5143"===a[1]?1:parseInt(a[1]||e,10)},months:"1\u6708_2\u6708_3\u6708_4\u6708_5\u6708_6\u6708_7\u6708_8\u6708_9\u6708_10\u6708_11\u6708_12\u6708".split("_"),monthsShort:"1\u6708_2\u6708_3\u6708_4\u6708_5\u6708_6\u6708_7\u6708_8\u6708_9\u6708_10\u6708_11\u6708_12\u6708".split("_"),weekdays:"\u65e5\u66dc\u65e5_\u6708\u66dc\u65e5_\u706b\u66dc\u65e5_\u6c34\u66dc\u65e5_\u6728\u66dc\u65e5_\u91d1\u66dc\u65e5_\u571f\u66dc\u65e5".split("_"),weekdaysShort:"\u65e5_\u6708_\u706b_\u6c34_\u6728_\u91d1_\u571f".split("_"),weekdaysMin:"\u65e5_\u6708_\u706b_\u6c34_\u6728_\u91d1_\u571f".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"YYYY/MM/DD",LL:"YYYY\u5e74M\u6708D\u65e5",LLL:"YYYY\u5e74M\u6708D\u65e5 HH:mm",LLLL:"YYYY\u5e74M\u6708D\u65e5 dddd HH:mm",l:"YYYY/MM/DD",ll:"YYYY\u5e74M\u6708D\u65e5",lll:"YYYY\u5e74M\u6708D\u65e5 HH:mm",llll:"YYYY\u5e74M\u6708D\u65e5(ddd) HH:mm"},meridiemParse:/\u5348\u524d|\u5348\u5f8c/i,isPM:function(e){return"\u5348\u5f8c"===e},meridiem:function(e,a,_){return e<12?"\u5348\u524d":"\u5348\u5f8c"},calendar:{sameDay:"[\u4eca\u65e5] LT",nextDay:"[\u660e\u65e5] LT",nextWeek:function(e){return e.week()!==this.week()?"[\u6765\u9031]dddd LT":"dddd LT"},lastDay:"[\u6628\u65e5] LT",lastWeek:function(e){return this.week()!==e.week()?"[\u5148\u9031]dddd LT":"dddd LT"},sameElse:"L"},dayOfMonthOrdinalParse:/\d{1,2}\u65e5/,ordinal:function(e,a){switch(a){case"y":return 1===e?"\u5143\u5e74":e+"\u5e74";case"d":case"D":case"DDD":return e+"\u65e5";default:return e}},relativeTime:{future:"%s\u5f8c",past:"%s\u524d",s:"\u6570\u79d2",ss:"%d\u79d2",m:"1\u5206",mm:"%d\u5206",h:"1\u6642\u9593",hh:"%d\u6642\u9593",d:"1\u65e5",dd:"%d\u65e5",M:"1\u30f6\u6708",MM:"%d\u30f6\u6708",y:"1\u5e74",yy:"%d\u5e74"}}),e.defineLocale("jv",{months:"Januari_Februari_Maret_April_Mei_Juni_Juli_Agustus_September_Oktober_Nopember_Desember".split("_"),monthsShort:"Jan_Feb_Mar_Apr_Mei_Jun_Jul_Ags_Sep_Okt_Nop_Des".split("_"),weekdays:"Minggu_Senen_Seloso_Rebu_Kemis_Jemuwah_Septu".split("_"),weekdaysShort:"Min_Sen_Sel_Reb_Kem_Jem_Sep".split("_"),weekdaysMin:"Mg_Sn_Sl_Rb_Km_Jm_Sp".split("_"),longDateFormat:{LT:"HH.mm",LTS:"HH.mm.ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY [pukul] HH.mm",LLLL:"dddd, D MMMM YYYY [pukul] HH.mm"},meridiemParse:/enjing|siyang|sonten|ndalu/,meridiemHour:function(e,a){return 12===e&&(e=0),"enjing"===a?e:"siyang"===a?11<=e?e:e+12:"sonten"===a||"ndalu"===a?e+12:void 0},meridiem:function(e,a,_){return e<11?"enjing":e<15?"siyang":e<19?"sonten":"ndalu"},calendar:{sameDay:"[Dinten puniko pukul] LT",nextDay:"[Mbenjang pukul] LT",nextWeek:"dddd [pukul] LT",lastDay:"[Kala wingi pukul] LT",lastWeek:"dddd [kepengker pukul] LT",sameElse:"L"},relativeTime:{future:"wonten ing %s",past:"%s ingkang kepengker",s:"sawetawis detik",ss:"%d detik",m:"setunggal menit",mm:"%d menit",h:"setunggal jam",hh:"%d jam",d:"sedinten",dd:"%d dinten",M:"sewulan",MM:"%d wulan",y:"setaun",yy:"%d taun"},week:{dow:1,doy:7}}),e.defineLocale("ka",{months:"\u10d8\u10d0\u10dc\u10d5\u10d0\u10e0\u10d8_\u10d7\u10d4\u10d1\u10d4\u10e0\u10d5\u10d0\u10da\u10d8_\u10db\u10d0\u10e0\u10e2\u10d8_\u10d0\u10de\u10e0\u10d8\u10da\u10d8_\u10db\u10d0\u10d8\u10e1\u10d8_\u10d8\u10d5\u10dc\u10d8\u10e1\u10d8_\u10d8\u10d5\u10da\u10d8\u10e1\u10d8_\u10d0\u10d2\u10d5\u10d8\u10e1\u10e2\u10dd_\u10e1\u10d4\u10e5\u10e2\u10d4\u10db\u10d1\u10d4\u10e0\u10d8_\u10dd\u10e5\u10e2\u10dd\u10db\u10d1\u10d4\u10e0\u10d8_\u10dc\u10dd\u10d4\u10db\u10d1\u10d4\u10e0\u10d8_\u10d3\u10d4\u10d9\u10d4\u10db\u10d1\u10d4\u10e0\u10d8".split("_"),monthsShort:"\u10d8\u10d0\u10dc_\u10d7\u10d4\u10d1_\u10db\u10d0\u10e0_\u10d0\u10de\u10e0_\u10db\u10d0\u10d8_\u10d8\u10d5\u10dc_\u10d8\u10d5\u10da_\u10d0\u10d2\u10d5_\u10e1\u10d4\u10e5_\u10dd\u10e5\u10e2_\u10dc\u10dd\u10d4_\u10d3\u10d4\u10d9".split("_"),weekdays:{standalone:"\u10d9\u10d5\u10d8\u10e0\u10d0_\u10dd\u10e0\u10e8\u10d0\u10d1\u10d0\u10d7\u10d8_\u10e1\u10d0\u10db\u10e8\u10d0\u10d1\u10d0\u10d7\u10d8_\u10dd\u10d7\u10ee\u10e8\u10d0\u10d1\u10d0\u10d7\u10d8_\u10ee\u10e3\u10d7\u10e8\u10d0\u10d1\u10d0\u10d7\u10d8_\u10de\u10d0\u10e0\u10d0\u10e1\u10d9\u10d4\u10d5\u10d8_\u10e8\u10d0\u10d1\u10d0\u10d7\u10d8".split("_"),format:"\u10d9\u10d5\u10d8\u10e0\u10d0\u10e1_\u10dd\u10e0\u10e8\u10d0\u10d1\u10d0\u10d7\u10e1_\u10e1\u10d0\u10db\u10e8\u10d0\u10d1\u10d0\u10d7\u10e1_\u10dd\u10d7\u10ee\u10e8\u10d0\u10d1\u10d0\u10d7\u10e1_\u10ee\u10e3\u10d7\u10e8\u10d0\u10d1\u10d0\u10d7\u10e1_\u10de\u10d0\u10e0\u10d0\u10e1\u10d9\u10d4\u10d5\u10e1_\u10e8\u10d0\u10d1\u10d0\u10d7\u10e1".split("_"),isFormat:/(\u10ec\u10d8\u10dc\u10d0|\u10e8\u10d4\u10db\u10d3\u10d4\u10d2)/},weekdaysShort:"\u10d9\u10d5\u10d8_\u10dd\u10e0\u10e8_\u10e1\u10d0\u10db_\u10dd\u10d7\u10ee_\u10ee\u10e3\u10d7_\u10de\u10d0\u10e0_\u10e8\u10d0\u10d1".split("_"),weekdaysMin:"\u10d9\u10d5_\u10dd\u10e0_\u10e1\u10d0_\u10dd\u10d7_\u10ee\u10e3_\u10de\u10d0_\u10e8\u10d0".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd, D MMMM YYYY HH:mm"},calendar:{sameDay:"[\u10d3\u10e6\u10d4\u10e1] LT[-\u10d6\u10d4]",nextDay:"[\u10ee\u10d5\u10d0\u10da] LT[-\u10d6\u10d4]",lastDay:"[\u10d2\u10e3\u10e8\u10d8\u10dc] LT[-\u10d6\u10d4]",nextWeek:"[\u10e8\u10d4\u10db\u10d3\u10d4\u10d2] dddd LT[-\u10d6\u10d4]",lastWeek:"[\u10ec\u10d8\u10dc\u10d0] dddd LT-\u10d6\u10d4",sameElse:"L"},relativeTime:{future:function(e){return e.replace(/(\u10ec\u10d0\u10db|\u10ec\u10e3\u10d7|\u10e1\u10d0\u10d0\u10d7|\u10ec\u10d4\u10da|\u10d3\u10e6|\u10d7\u10d5)(\u10d8|\u10d4)/,function(e,a,_){return"\u10d8"===_?a+"\u10e8\u10d8":a+_+"\u10e8\u10d8"})},past:function(e){return/(\u10ec\u10d0\u10db\u10d8|\u10ec\u10e3\u10d7\u10d8|\u10e1\u10d0\u10d0\u10d7\u10d8|\u10d3\u10e6\u10d4|\u10d7\u10d5\u10d4)/.test(e)?e.replace(/(\u10d8|\u10d4)$/,"\u10d8\u10e1 \u10ec\u10d8\u10dc"):/\u10ec\u10d4\u10da\u10d8/.test(e)?e.replace(/\u10ec\u10d4\u10da\u10d8$/,"\u10ec\u10da\u10d8\u10e1 \u10ec\u10d8\u10dc"):e},s:"\u10e0\u10d0\u10db\u10d3\u10d4\u10dc\u10d8\u10db\u10d4 \u10ec\u10d0\u10db\u10d8",ss:"%d \u10ec\u10d0\u10db\u10d8",m:"\u10ec\u10e3\u10d7\u10d8",mm:"%d \u10ec\u10e3\u10d7\u10d8",h:"\u10e1\u10d0\u10d0\u10d7\u10d8",hh:"%d \u10e1\u10d0\u10d0\u10d7\u10d8",d:"\u10d3\u10e6\u10d4",dd:"%d \u10d3\u10e6\u10d4",M:"\u10d7\u10d5\u10d4",MM:"%d \u10d7\u10d5\u10d4",y:"\u10ec\u10d4\u10da\u10d8",yy:"%d \u10ec\u10d4\u10da\u10d8"},dayOfMonthOrdinalParse:/0|1-\u10da\u10d8|\u10db\u10d4-\d{1,2}|\d{1,2}-\u10d4/,ordinal:function(e){return 0===e?e:1===e?e+"-\u10da\u10d8":e<20||e<=100&&e%20==0||e%100==0?"\u10db\u10d4-"+e:e+"-\u10d4"},week:{dow:1,doy:7}});var we={0:"-\u0448\u0456",1:"-\u0448\u0456",2:"-\u0448\u0456",3:"-\u0448\u0456",4:"-\u0448\u0456",5:"-\u0448\u0456",6:"-\u0448\u044b",7:"-\u0448\u0456",8:"-\u0448\u0456",9:"-\u0448\u044b",10:"-\u0448\u044b",20:"-\u0448\u044b",30:"-\u0448\u044b",40:"-\u0448\u044b",50:"-\u0448\u0456",60:"-\u0448\u044b",70:"-\u0448\u0456",80:"-\u0448\u0456",90:"-\u0448\u044b",100:"-\u0448\u0456"},ge=(e.defineLocale("kk",{months:"\u049b\u0430\u04a3\u0442\u0430\u0440_\u0430\u049b\u043f\u0430\u043d_\u043d\u0430\u0443\u0440\u044b\u0437_\u0441\u04d9\u0443\u0456\u0440_\u043c\u0430\u043c\u044b\u0440_\u043c\u0430\u0443\u0441\u044b\u043c_\u0448\u0456\u043b\u0434\u0435_\u0442\u0430\u043c\u044b\u0437_\u049b\u044b\u0440\u043a\u04af\u0439\u0435\u043a_\u049b\u0430\u0437\u0430\u043d_\u049b\u0430\u0440\u0430\u0448\u0430_\u0436\u0435\u043b\u0442\u043e\u049b\u0441\u0430\u043d".split("_"),monthsShort:"\u049b\u0430\u04a3_\u0430\u049b\u043f_\u043d\u0430\u0443_\u0441\u04d9\u0443_\u043c\u0430\u043c_\u043c\u0430\u0443_\u0448\u0456\u043b_\u0442\u0430\u043c_\u049b\u044b\u0440_\u049b\u0430\u0437_\u049b\u0430\u0440_\u0436\u0435\u043b".split("_"),weekdays:"\u0436\u0435\u043a\u0441\u0435\u043d\u0431\u0456_\u0434\u04af\u0439\u0441\u0435\u043d\u0431\u0456_\u0441\u0435\u0439\u0441\u0435\u043d\u0431\u0456_\u0441\u04d9\u0440\u0441\u0435\u043d\u0431\u0456_\u0431\u0435\u0439\u0441\u0435\u043d\u0431\u0456_\u0436\u04b1\u043c\u0430_\u0441\u0435\u043d\u0431\u0456".split("_"),weekdaysShort:"\u0436\u0435\u043a_\u0434\u04af\u0439_\u0441\u0435\u0439_\u0441\u04d9\u0440_\u0431\u0435\u0439_\u0436\u04b1\u043c_\u0441\u0435\u043d".split("_"),weekdaysMin:"\u0436\u043a_\u0434\u0439_\u0441\u0439_\u0441\u0440_\u0431\u0439_\u0436\u043c_\u0441\u043d".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD.MM.YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd, D MMMM YYYY HH:mm"},calendar:{sameDay:"[\u0411\u04af\u0433\u0456\u043d \u0441\u0430\u0493\u0430\u0442] LT",nextDay:"[\u0415\u0440\u0442\u0435\u04a3 \u0441\u0430\u0493\u0430\u0442] LT",nextWeek:"dddd [\u0441\u0430\u0493\u0430\u0442] LT",lastDay:"[\u041a\u0435\u0448\u0435 \u0441\u0430\u0493\u0430\u0442] LT",lastWeek:"[\u04e8\u0442\u043a\u0435\u043d \u0430\u043f\u0442\u0430\u043d\u044b\u04a3] dddd [\u0441\u0430\u0493\u0430\u0442] LT",sameElse:"L"},relativeTime:{future:"%s \u0456\u0448\u0456\u043d\u0434\u0435",past:"%s \u0431\u04b1\u0440\u044b\u043d",s:"\u0431\u0456\u0440\u043d\u0435\u0448\u0435 \u0441\u0435\u043a\u0443\u043d\u0434",ss:"%d \u0441\u0435\u043a\u0443\u043d\u0434",m:"\u0431\u0456\u0440 \u043c\u0438\u043d\u0443\u0442",mm:"%d \u043c\u0438\u043d\u0443\u0442",h:"\u0431\u0456\u0440 \u0441\u0430\u0493\u0430\u0442",hh:"%d \u0441\u0430\u0493\u0430\u0442",d:"\u0431\u0456\u0440 \u043a\u04af\u043d",dd:"%d \u043a\u04af\u043d",M:"\u0431\u0456\u0440 \u0430\u0439",MM:"%d \u0430\u0439",y:"\u0431\u0456\u0440 \u0436\u044b\u043b",yy:"%d \u0436\u044b\u043b"},dayOfMonthOrdinalParse:/\d{1,2}-(\u0448\u0456|\u0448\u044b)/,ordinal:function(e){return e+(we[e]||we[e%10]||we[100<=e?100:null])},week:{dow:1,doy:7}}),{1:"\u17e1",2:"\u17e2",3:"\u17e3",4:"\u17e4",5:"\u17e5",6:"\u17e6",7:"\u17e7",8:"\u17e8",9:"\u17e9",0:"\u17e0"}),He={"\u17e1":"1","\u17e2":"2","\u17e3":"3","\u17e4":"4","\u17e5":"5","\u17e6":"6","\u17e7":"7","\u17e8":"8","\u17e9":"9","\u17e0":"0"},be=(e.defineLocale("km",{months:"\u1798\u1780\u179a\u17b6_\u1780\u17bb\u1798\u17d2\u1797\u17c8_\u1798\u17b8\u1793\u17b6_\u1798\u17c1\u179f\u17b6_\u17a7\u179f\u1797\u17b6_\u1798\u17b7\u1790\u17bb\u1793\u17b6_\u1780\u1780\u17d2\u1780\u178a\u17b6_\u179f\u17b8\u17a0\u17b6_\u1780\u1789\u17d2\u1789\u17b6_\u178f\u17bb\u179b\u17b6_\u179c\u17b7\u1785\u17d2\u1786\u17b7\u1780\u17b6_\u1792\u17d2\u1793\u17bc".split("_"),monthsShort:"\u1798\u1780\u179a\u17b6_\u1780\u17bb\u1798\u17d2\u1797\u17c8_\u1798\u17b8\u1793\u17b6_\u1798\u17c1\u179f\u17b6_\u17a7\u179f\u1797\u17b6_\u1798\u17b7\u1790\u17bb\u1793\u17b6_\u1780\u1780\u17d2\u1780\u178a\u17b6_\u179f\u17b8\u17a0\u17b6_\u1780\u1789\u17d2\u1789\u17b6_\u178f\u17bb\u179b\u17b6_\u179c\u17b7\u1785\u17d2\u1786\u17b7\u1780\u17b6_\u1792\u17d2\u1793\u17bc".split("_"),weekdays:"\u17a2\u17b6\u1791\u17b7\u178f\u17d2\u1799_\u1785\u17d0\u1793\u17d2\u1791_\u17a2\u1784\u17d2\u1782\u17b6\u179a_\u1796\u17bb\u1792_\u1796\u17d2\u179a\u17a0\u179f\u17d2\u1794\u178f\u17b7\u17cd_\u179f\u17bb\u1780\u17d2\u179a_\u179f\u17c5\u179a\u17cd".split("_"),weekdaysShort:"\u17a2\u17b6_\u1785_\u17a2_\u1796_\u1796\u17d2\u179a_\u179f\u17bb_\u179f".split("_"),weekdaysMin:"\u17a2\u17b6_\u1785_\u17a2_\u1796_\u1796\u17d2\u179a_\u179f\u17bb_\u179f".split("_"),weekdaysParseExact:!0,longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd, D MMMM YYYY HH:mm"},meridiemParse:/\u1796\u17d2\u179a\u17b9\u1780|\u179b\u17d2\u1784\u17b6\u1785/,isPM:function(e){return"\u179b\u17d2\u1784\u17b6\u1785"===e},meridiem:function(e,a,_){return e<12?"\u1796\u17d2\u179a\u17b9\u1780":"\u179b\u17d2\u1784\u17b6\u1785"},calendar:{sameDay:"[\u1790\u17d2\u1784\u17c3\u1793\u17c1\u17c7 \u1798\u17c9\u17c4\u1784] LT",nextDay:"[\u179f\u17d2\u17a2\u17c2\u1780 \u1798\u17c9\u17c4\u1784] LT",nextWeek:"dddd [\u1798\u17c9\u17c4\u1784] LT",lastDay:"[\u1798\u17d2\u179f\u17b7\u179b\u1798\u17b7\u1789 \u1798\u17c9\u17c4\u1784] LT",lastWeek:"dddd [\u179f\u1794\u17d2\u178f\u17b6\u17a0\u17cd\u1798\u17bb\u1793] [\u1798\u17c9\u17c4\u1784] LT",sameElse:"L"},relativeTime:{future:"%s\u1791\u17c0\u178f",past:"%s\u1798\u17bb\u1793",s:"\u1794\u17c9\u17bb\u1793\u17d2\u1798\u17b6\u1793\u179c\u17b7\u1793\u17b6\u1791\u17b8",ss:"%d \u179c\u17b7\u1793\u17b6\u1791\u17b8",m:"\u1798\u17bd\u1799\u1793\u17b6\u1791\u17b8",mm:"%d 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san\xeeyeyan"],m:["deq\xeeqeyek","deq\xeeqeyek\xea"],mm:[e+" deq\xeeqe",e+" deq\xeeqeyan"],h:["saetek","saetek\xea"],hh:[e+" saet",e+" saetan"],d:["rojek","rojek\xea"],dd:[e+" roj",e+" rojan"],w:["hefteyek","hefteyek\xea"],ww:[e+" hefte",e+" hefteyan"],M:["mehek","mehek\xea"],MM:[e+" meh",e+" mehan"],y:["salek","salek\xea"],yy:[e+" sal",e+" salan"]};return 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e<4?"\u0cb0\u0cbe\u0ca4\u0ccd\u0cb0\u0cbf":e<10?"\u0cac\u0cc6\u0cb3\u0cbf\u0c97\u0ccd\u0c97\u0cc6":e<17?"\u0cae\u0ca7\u0ccd\u0caf\u0cbe\u0cb9\u0ccd\u0ca8":e<20?"\u0cb8\u0c82\u0c9c\u0cc6":"\u0cb0\u0cbe\u0ca4\u0ccd\u0cb0\u0cbf"},dayOfMonthOrdinalParse:/\d{1,2}(\u0ca8\u0cc6\u0cd5)/,ordinal:function(e){return e+"\u0ca8\u0cc6\u0cd5"},week:{dow:0,doy:6}}),e.defineLocale("ko",{months:"1\uc6d4_2\uc6d4_3\uc6d4_4\uc6d4_5\uc6d4_6\uc6d4_7\uc6d4_8\uc6d4_9\uc6d4_10\uc6d4_11\uc6d4_12\uc6d4".split("_"),monthsShort:"1\uc6d4_2\uc6d4_3\uc6d4_4\uc6d4_5\uc6d4_6\uc6d4_7\uc6d4_8\uc6d4_9\uc6d4_10\uc6d4_11\uc6d4_12\uc6d4".split("_"),weekdays:"\uc77c\uc694\uc77c_\uc6d4\uc694\uc77c_\ud654\uc694\uc77c_\uc218\uc694\uc77c_\ubaa9\uc694\uc77c_\uae08\uc694\uc77c_\ud1a0\uc694\uc77c".split("_"),weekdaysShort:"\uc77c_\uc6d4_\ud654_\uc218_\ubaa9_\uae08_\ud1a0".split("_"),weekdaysMin:"\uc77c_\uc6d4_\ud654_\uc218_\ubaa9_\uae08_\ud1a0".split("_"),longDateFormat:{LT:"A h:mm",LTS:"A h:mm:ss",L:"YYYY.MM.DD.",LL:"YYYY\ub144 MMMM 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e<12?"\uc624\uc804":"\uc624\ud6c4"}}),e.defineLocale("ku-kmr",{months:"R\xeabendan_Sibat_Adar_N\xeesan_Gulan_Hez\xeeran_T\xeermeh_Tebax_\xcelon_Cotmeh_Mijdar_Berfanbar".split("_"),monthsShort:"R\xeab_Sib_Ada_N\xees_Gul_Hez_T\xeer_Teb_\xcelo_Cot_Mij_Ber".split("_"),monthsParseExact:!0,weekdays:"Yek\u015fem_Du\u015fem_S\xea\u015fem_\xc7ar\u015fem_P\xeanc\u015fem_\xcen_\u015eem\xee".split("_"),weekdaysShort:"Yek_Du_S\xea_\xc7ar_P\xean_\xcen_\u015eem".split("_"),weekdaysMin:"Ye_Du_S\xea_\xc7a_P\xea_\xcen_\u015ee".split("_"),meridiem:function(e,a,_){return e<12?_?"bn":"BN":_?"pn":"PN"},meridiemParse:/bn|BN|pn|PN/,longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD.MM.YYYY",LL:"Do MMMM[a] YYYY[an]",LLL:"Do MMMM[a] YYYY[an] HH:mm",LLLL:"dddd, Do MMMM[a] YYYY[an] HH:mm",ll:"Do MMM[.] YYYY[an]",lll:"Do MMM[.] YYYY[an] HH:mm",llll:"ddd[.], Do MMM[.] YYYY[an] HH:mm"},calendar:{sameDay:"[\xcero di saet] LT [de]",nextDay:"[Sib\xea di saet] LT [de]",nextWeek:"dddd [di saet] LT [de]",lastDay:"[Duh di saet] LT [de]",lastWeek:"dddd[a bor\xee di saet] LT [de]",sameElse:"L"},relativeTime:{future:"di %s de",past:"ber\xee %s",s:T,ss:T,m:T,mm:T,h:T,hh:T,d:T,dd:T,w:T,ww:T,M:T,MM:T,y:T,yy:T},dayOfMonthOrdinalParse:/\d{1,2}(?:y\xea|\xea|\.)/,ordinal:function(e,a){var a=a.toLowerCase();return a.includes("w")||a.includes("m")?e+".":e+(e=(a=""+(a=e)).substring(a.length-1),12==(a=1<a.length?a.substring(a.length-2):"")||13==a||"2"!=e&&"3"!=e&&"50"!=a&&"70"!=e&&"80"!=e?"\xea":"y\xea")},week:{dow:1,doy:4}});var ve={1:"\u0661",2:"\u0662",3:"\u0663",4:"\u0664",5:"\u0665",6:"\u0666",7:"\u0667",8:"\u0668",9:"\u0669",0:"\u0660"},je={"\u0661":"1","\u0662":"2","\u0663":"3","\u0664":"4","\u0665":"5","\u0666":"6","\u0667":"7","\u0668":"8","\u0669":"9","\u0660":"0"},n=["\u06a9\u0627\u0646\u0648\u0646\u06cc 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MMMM, dddd, HH:mm"},calendar:{sameDay:"[\u0160odien pulksten] LT",nextDay:"[R\u012bt pulksten] LT",nextWeek:"dddd [pulksten] LT",lastDay:"[Vakar pulksten] LT",lastWeek:"[Pag\u0101ju\u0161\u0101] dddd [pulksten] LT",sameElse:"L"},relativeTime:{future:"p\u0113c %s",past:"pirms %s",s:function(e,a){return a?"da\u017eas sekundes":"da\u017e\u0101m sekund\u0113m"},ss:Ne,m:Ie,mm:Ne,h:Ie,hh:Ne,d:Ie,dd:Ne,M:Ie,MM:Ne,y:Ie,yy:Ne},dayOfMonthOrdinalParse:/\d{1,2}\./,ordinal:"%d.",week:{dow:1,doy:4}});var w={words:{ss:["sekund","sekunda","sekundi"],m:["jedan minut","jednog minuta"],mm:["minut","minuta","minuta"],h:["jedan sat","jednog sata"],hh:["sat","sata","sati"],dd:["dan","dana","dana"],MM:["mjesec","mjeseca","mjeseci"],yy:["godina","godine","godina"]},correctGrammaticalCase:function(e,a){return 1===e?a[0]:2<=e&&e<=4?a[1]:a[2]},translate:function(e,a,_){var s=w.words[_];return 1===_.length?a?s[0]:s[1]:e+" "+w.correctGrammaticalCase(e,s)}};function g(e,a,_,s){switch(_){case"s":return a?"\u0445\u044d\u0434\u0445\u044d\u043d \u0441\u0435\u043a\u0443\u043d\u0434":"\u0445\u044d\u0434\u0445\u044d\u043d \u0441\u0435\u043a\u0443\u043d\u0434\u044b\u043d";case"ss":return e+(a?" \u0441\u0435\u043a\u0443\u043d\u0434":" \u0441\u0435\u043a\u0443\u043d\u0434\u044b\u043d");case"m":case"mm":return e+(a?" \u043c\u0438\u043d\u0443\u0442":" \u043c\u0438\u043d\u0443\u0442\u044b\u043d");case"h":case"hh":return e+(a?" \u0446\u0430\u0433":" \u0446\u0430\u0433\u0438\u0439\u043d");case"d":case"dd":return e+(a?" \u04e9\u0434\u04e9\u0440":" \u04e9\u0434\u0440\u0438\u0439\u043d");case"M":case"MM":return e+(a?" \u0441\u0430\u0440":" \u0441\u0430\u0440\u044b\u043d");case"y":case"yy":return e+(a?" \u0436\u0438\u043b":" \u0436\u0438\u043b\u0438\u0439\u043d");default:return e}}e.defineLocale("me",{months:"januar_februar_mart_april_maj_jun_jul_avgust_septembar_oktobar_novembar_decembar".split("_"),monthsShort:"jan._feb._mar._apr._maj_jun_jul_avg._sep._okt._nov._dec.".split("_"),monthsParseExact:!0,weekdays:"nedjelja_ponedjeljak_utorak_srijeda_\u010detvrtak_petak_subota".split("_"),weekdaysShort:"ned._pon._uto._sri._\u010det._pet._sub.".split("_"),weekdaysMin:"ne_po_ut_sr_\u010de_pe_su".split("_"),weekdaysParseExact:!0,longDateFormat:{LT:"H:mm",LTS:"H:mm:ss",L:"DD.MM.YYYY",LL:"D. MMMM YYYY",LLL:"D. MMMM YYYY H:mm",LLLL:"dddd, D. MMMM YYYY H:mm"},calendar:{sameDay:"[danas u] LT",nextDay:"[sjutra u] LT",nextWeek:function(){switch(this.day()){case 0:return"[u] [nedjelju] [u] LT";case 3:return"[u] [srijedu] [u] LT";case 6:return"[u] [subotu] [u] LT";case 1:case 2:case 4:case 5:return"[u] dddd [u] LT"}},lastDay:"[ju\u010de u] LT",lastWeek:function(){return["[pro\u0161le] [nedjelje] [u] LT","[pro\u0161log] [ponedjeljka] [u] LT","[pro\u0161log] [utorka] [u] LT","[pro\u0161le] [srijede] [u] LT","[pro\u0161log] [\u010detvrtka] [u] LT","[pro\u0161log] [petka] [u] LT","[pro\u0161le] [subote] [u] LT"][this.day()]},sameElse:"L"},relativeTime:{future:"za %s",past:"prije %s",s:"nekoliko sekundi",ss:w.translate,m:w.translate,mm:w.translate,h:w.translate,hh:w.translate,d:"dan",dd:w.translate,M:"mjesec",MM:w.translate,y:"godinu",yy:w.translate},dayOfMonthOrdinalParse:/\d{1,2}\./,ordinal:"%d.",week:{dow:1,doy:7}}),e.defineLocale("mi",{months:"Kohi-t\u0101te_Hui-tanguru_Pout\u016b-te-rangi_Paenga-wh\u0101wh\u0101_Haratua_Pipiri_H\u014dngoingoi_Here-turi-k\u014dk\u0101_Mahuru_Whiringa-\u0101-nuku_Whiringa-\u0101-rangi_Hakihea".split("_"),monthsShort:"Kohi_Hui_Pou_Pae_Hara_Pipi_H\u014dngoi_Here_Mahu_Whi-nu_Whi-ra_Haki".split("_"),monthsRegex:/(?:['a-z\u0101\u014D\u016B]+\-?){1,3}/i,monthsStrictRegex:/(?:['a-z\u0101\u014D\u016B]+\-?){1,3}/i,monthsShortRegex:/(?:['a-z\u0101\u014D\u016B]+\-?){1,3}/i,monthsShortStrictRegex:/(?:['a-z\u0101\u014D\u016B]+\-?){1,2}/i,weekdays:"R\u0101tapu_Mane_T\u016brei_Wenerei_T\u0101ite_Paraire_H\u0101tarei".split("_"),weekdaysShort:"Ta_Ma_T\u016b_We_T\u0101i_Pa_H\u0101".split("_"),weekdaysMin:"Ta_Ma_T\u016b_We_T\u0101i_Pa_H\u0101".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY [i] HH:mm",LLLL:"dddd, D MMMM YYYY [i] HH:mm"},calendar:{sameDay:"[i teie mahana, i] LT",nextDay:"[apopo i] LT",nextWeek:"dddd [i] LT",lastDay:"[inanahi i] LT",lastWeek:"dddd [whakamutunga i] LT",sameElse:"L"},relativeTime:{future:"i roto i %s",past:"%s i mua",s:"te h\u0113kona ruarua",ss:"%d h\u0113kona",m:"he meneti",mm:"%d meneti",h:"te haora",hh:"%d haora",d:"he ra",dd:"%d ra",M:"he marama",MM:"%d marama",y:"he tau",yy:"%d tau"},dayOfMonthOrdinalParse:/\d{1,2}\xba/,ordinal:"%d\xba",week:{dow:1,doy:4}}),e.defineLocale("mk",{months:"\u0458\u0430\u043d\u0443\u0430\u0440\u0438_\u0444\u0435\u0432\u0440\u0443\u0430\u0440\u0438_\u043c\u0430\u0440\u0442_\u0430\u043f\u0440\u0438\u043b_\u043c\u0430\u0458_\u0458\u0443\u043d\u0438_\u0458\u0443\u043b\u0438_\u0430\u0432\u0433\u0443\u0441\u0442_\u0441\u0435\u043f\u0442\u0435\u043c\u0432\u0440\u0438_\u043e\u043a\u0442\u043e\u043c\u0432\u0440\u0438_\u043d\u043e\u0435\u043c\u0432\u0440\u0438_\u0434\u0435\u043a\u0435\u043c\u0432\u0440\u0438".split("_"),monthsShort:"\u0458\u0430\u043d_\u0444\u0435\u0432_\u043c\u0430\u0440_\u0430\u043f\u0440_\u043c\u0430\u0458_\u0458\u0443\u043d_\u0458\u0443\u043b_\u0430\u0432\u0433_\u0441\u0435\u043f_\u043e\u043a\u0442_\u043d\u043e\u0435_\u0434\u0435\u043a".split("_"),weekdays:"\u043d\u0435\u0434\u0435\u043b\u0430_\u043f\u043e\u043d\u0435\u0434\u0435\u043b\u043d\u0438\u043a_\u0432\u0442\u043e\u0440\u043d\u0438\u043a_\u0441\u0440\u0435\u0434\u0430_\u0447\u0435\u0442\u0432\u0440\u0442\u043e\u043a_\u043f\u0435\u0442\u043e\u043a_\u0441\u0430\u0431\u043e\u0442\u0430".split("_"),weekdaysShort:"\u043d\u0435\u0434_\u043f\u043e\u043d_\u0432\u0442\u043e_\u0441\u0440\u0435_\u0447\u0435\u0442_\u043f\u0435\u0442_\u0441\u0430\u0431".split("_"),weekdaysMin:"\u043de_\u043fo_\u0432\u0442_\u0441\u0440_\u0447\u0435_\u043f\u0435_\u0441a".split("_"),longDateFormat:{LT:"H:mm",LTS:"H:mm:ss",L:"D.MM.YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY H:mm",LLLL:"dddd, D MMMM YYYY H:mm"},calendar:{sameDay:"[\u0414\u0435\u043d\u0435\u0441 \u0432\u043e] LT",nextDay:"[\u0423\u0442\u0440\u0435 \u0432\u043e] LT",nextWeek:"[\u0412\u043e] dddd [\u0432\u043e] LT",lastDay:"[\u0412\u0447\u0435\u0440\u0430 \u0432\u043e] LT",lastWeek:function(){switch(this.day()){case 0:case 3:case 6:return"[\u0418\u0437\u043c\u0438\u043d\u0430\u0442\u0430\u0442\u0430] dddd [\u0432\u043e] LT";case 1:case 2:case 4:case 5:return"[\u0418\u0437\u043c\u0438\u043d\u0430\u0442\u0438\u043e\u0442] dddd [\u0432\u043e] LT"}},sameElse:"L"},relativeTime:{future:"\u0437\u0430 %s",past:"\u043f\u0440\u0435\u0434 %s",s:"\u043d\u0435\u043a\u043e\u043b\u043a\u0443 \u0441\u0435\u043a\u0443\u043d\u0434\u0438",ss:"%d \u0441\u0435\u043a\u0443\u043d\u0434\u0438",m:"\u0435\u0434\u043d\u0430 \u043c\u0438\u043d\u0443\u0442\u0430",mm:"%d \u043c\u0438\u043d\u0443\u0442\u0438",h:"\u0435\u0434\u0435\u043d \u0447\u0430\u0441",hh:"%d \u0447\u0430\u0441\u0430",d:"\u0435\u0434\u0435\u043d \u0434\u0435\u043d",dd:"%d \u0434\u0435\u043d\u0430",M:"\u0435\u0434\u0435\u043d \u043c\u0435\u0441\u0435\u0446",MM:"%d \u043c\u0435\u0441\u0435\u0446\u0438",y:"\u0435\u0434\u043d\u0430 \u0433\u043e\u0434\u0438\u043d\u0430",yy:"%d \u0433\u043e\u0434\u0438\u043d\u0438"},dayOfMonthOrdinalParse:/\d{1,2}-(\u0435\u0432|\u0435\u043d|\u0442\u0438|\u0432\u0438|\u0440\u0438|\u043c\u0438)/,ordinal:function(e){var a=e%10,_=e%100;return 0===e?e+"-\u0435\u0432":0==_?e+"-\u0435\u043d":10<_&&_<20?e+"-\u0442\u0438":1==a?e+"-\u0432\u0438":2==a?e+"-\u0440\u0438":7==a||8==a?e+"-\u043c\u0438":e+"-\u0442\u0438"},week:{dow:1,doy:7}}),e.defineLocale("ml",{months:"\u0d1c\u0d28\u0d41\u0d35\u0d30\u0d3f_\u0d2b\u0d46\u0d2c\u0d4d\u0d30\u0d41\u0d35\u0d30\u0d3f_\u0d2e\u0d3e\u0d7c\u0d1a\u0d4d\u0d1a\u0d4d_\u0d0f\u0d2a\u0d4d\u0d30\u0d3f\u0d7d_\u0d2e\u0d47\u0d2f\u0d4d_\u0d1c\u0d42\u0d7a_\u0d1c\u0d42\u0d32\u0d48_\u0d13\u0d17\u0d38\u0d4d\u0d31\u0d4d\u0d31\u0d4d_\u0d38\u0d46\u0d2a\u0d4d\u0d31\u0d4d\u0d31\u0d02\u0d2c\u0d7c_\u0d12\u0d15\u0d4d\u0d1f\u0d4b\u0d2c\u0d7c_\u0d28\u0d35\u0d02\u0d2c\u0d7c_\u0d21\u0d3f\u0d38\u0d02\u0d2c\u0d7c".split("_"),monthsShort:"\u0d1c\u0d28\u0d41._\u0d2b\u0d46\u0d2c\u0d4d\u0d30\u0d41._\u0d2e\u0d3e\u0d7c._\u0d0f\u0d2a\u0d4d\u0d30\u0d3f._\u0d2e\u0d47\u0d2f\u0d4d_\u0d1c\u0d42\u0d7a_\u0d1c\u0d42\u0d32\u0d48._\u0d13\u0d17._\u0d38\u0d46\u0d2a\u0d4d\u0d31\u0d4d\u0d31._\u0d12\u0d15\u0d4d\u0d1f\u0d4b._\u0d28\u0d35\u0d02._\u0d21\u0d3f\u0d38\u0d02.".split("_"),monthsParseExact:!0,weekdays:"\u0d1e\u0d3e\u0d2f\u0d31\u0d3e\u0d34\u0d4d\u0d1a_\u0d24\u0d3f\u0d19\u0d4d\u0d15\u0d33\u0d3e\u0d34\u0d4d\u0d1a_\u0d1a\u0d4a\u0d35\u0d4d\u0d35\u0d3e\u0d34\u0d4d\u0d1a_\u0d2c\u0d41\u0d27\u0d28\u0d3e\u0d34\u0d4d\u0d1a_\u0d35\u0d4d\u0d2f\u0d3e\u0d34\u0d3e\u0d34\u0d4d\u0d1a_\u0d35\u0d46\u0d33\u0d4d\u0d33\u0d3f\u0d2f\u0d3e\u0d34\u0d4d\u0d1a_\u0d36\u0d28\u0d3f\u0d2f\u0d3e\u0d34\u0d4d\u0d1a".split("_"),weekdaysShort:"\u0d1e\u0d3e\u0d2f\u0d7c_\u0d24\u0d3f\u0d19\u0d4d\u0d15\u0d7e_\u0d1a\u0d4a\u0d35\u0d4d\u0d35_\u0d2c\u0d41\u0d27\u0d7b_\u0d35\u0d4d\u0d2f\u0d3e\u0d34\u0d02_\u0d35\u0d46\u0d33\u0d4d\u0d33\u0d3f_\u0d36\u0d28\u0d3f".split("_"),weekdaysMin:"\u0d1e\u0d3e_\u0d24\u0d3f_\u0d1a\u0d4a_\u0d2c\u0d41_\u0d35\u0d4d\u0d2f\u0d3e_\u0d35\u0d46_\u0d36".split("_"),longDateFormat:{LT:"A h:mm -\u0d28\u0d41",LTS:"A h:mm:ss -\u0d28\u0d41",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY, A h:mm -\u0d28\u0d41",LLLL:"dddd, D MMMM YYYY, A h:mm -\u0d28\u0d41"},calendar:{sameDay:"[\u0d07\u0d28\u0d4d\u0d28\u0d4d] LT",nextDay:"[\u0d28\u0d3e\u0d33\u0d46] LT",nextWeek:"dddd, LT",lastDay:"[\u0d07\u0d28\u0d4d\u0d28\u0d32\u0d46] LT",lastWeek:"[\u0d15\u0d34\u0d3f\u0d1e\u0d4d\u0d1e] dddd, LT",sameElse:"L"},relativeTime:{future:"%s \u0d15\u0d34\u0d3f\u0d1e\u0d4d\u0d1e\u0d4d",past:"%s \u0d2e\u0d41\u0d7b\u0d2a\u0d4d",s:"\u0d05\u0d7d\u0d2a \u0d28\u0d3f\u0d2e\u0d3f\u0d37\u0d19\u0d4d\u0d19\u0d7e",ss:"%d \u0d38\u0d46\u0d15\u0d4d\u0d15\u0d7b\u0d21\u0d4d",m:"\u0d12\u0d30\u0d41 \u0d2e\u0d3f\u0d28\u0d3f\u0d31\u0d4d\u0d31\u0d4d",mm:"%d \u0d2e\u0d3f\u0d28\u0d3f\u0d31\u0d4d\u0d31\u0d4d",h:"\u0d12\u0d30\u0d41 \u0d2e\u0d23\u0d3f\u0d15\u0d4d\u0d15\u0d42\u0d7c",hh:"%d \u0d2e\u0d23\u0d3f\u0d15\u0d4d\u0d15\u0d42\u0d7c",d:"\u0d12\u0d30\u0d41 \u0d26\u0d3f\u0d35\u0d38\u0d02",dd:"%d \u0d26\u0d3f\u0d35\u0d38\u0d02",M:"\u0d12\u0d30\u0d41 \u0d2e\u0d3e\u0d38\u0d02",MM:"%d \u0d2e\u0d3e\u0d38\u0d02",y:"\u0d12\u0d30\u0d41 \u0d35\u0d7c\u0d37\u0d02",yy:"%d \u0d35\u0d7c\u0d37\u0d02"},meridiemParse:/\u0d30\u0d3e\u0d24\u0d4d\u0d30\u0d3f|\u0d30\u0d3e\u0d35\u0d3f\u0d32\u0d46|\u0d09\u0d1a\u0d4d\u0d1a \u0d15\u0d34\u0d3f\u0d1e\u0d4d\u0d1e\u0d4d|\u0d35\u0d48\u0d15\u0d41\u0d28\u0d4d\u0d28\u0d47\u0d30\u0d02|\u0d30\u0d3e\u0d24\u0d4d\u0d30\u0d3f/i,meridiemHour:function(e,a){return 12===e&&(e=0),"\u0d30\u0d3e\u0d24\u0d4d\u0d30\u0d3f"===a&&4<=e||"\u0d09\u0d1a\u0d4d\u0d1a \u0d15\u0d34\u0d3f\u0d1e\u0d4d\u0d1e\u0d4d"===a||"\u0d35\u0d48\u0d15\u0d41\u0d28\u0d4d\u0d28\u0d47\u0d30\u0d02"===a?e+12:e},meridiem:function(e,a,_){return e<4?"\u0d30\u0d3e\u0d24\u0d4d\u0d30\u0d3f":e<12?"\u0d30\u0d3e\u0d35\u0d3f\u0d32\u0d46":e<17?"\u0d09\u0d1a\u0d4d\u0d1a \u0d15\u0d34\u0d3f\u0d1e\u0d4d\u0d1e\u0d4d":e<20?"\u0d35\u0d48\u0d15\u0d41\u0d28\u0d4d\u0d28\u0d47\u0d30\u0d02":"\u0d30\u0d3e\u0d24\u0d4d\u0d30\u0d3f"}}),e.defineLocale("mn",{months:"\u041d\u044d\u0433\u0434\u04af\u0433\u044d\u044d\u0440 \u0441\u0430\u0440_\u0425\u043e\u0451\u0440\u0434\u0443\u0433\u0430\u0430\u0440 \u0441\u0430\u0440_\u0413\u0443\u0440\u0430\u0432\u0434\u0443\u0433\u0430\u0430\u0440 \u0441\u0430\u0440_\u0414\u04e9\u0440\u04e9\u0432\u0434\u04af\u0433\u044d\u044d\u0440 \u0441\u0430\u0440_\u0422\u0430\u0432\u0434\u0443\u0433\u0430\u0430\u0440 \u0441\u0430\u0440_\u0417\u0443\u0440\u0433\u0430\u0434\u0443\u0433\u0430\u0430\u0440 \u0441\u0430\u0440_\u0414\u043e\u043b\u0434\u0443\u0433\u0430\u0430\u0440 \u0441\u0430\u0440_\u041d\u0430\u0439\u043c\u0434\u0443\u0433\u0430\u0430\u0440 \u0441\u0430\u0440_\u0415\u0441\u0434\u04af\u0433\u044d\u044d\u0440 \u0441\u0430\u0440_\u0410\u0440\u0430\u0432\u0434\u0443\u0433\u0430\u0430\u0440 \u0441\u0430\u0440_\u0410\u0440\u0432\u0430\u043d \u043d\u044d\u0433\u0434\u04af\u0433\u044d\u044d\u0440 \u0441\u0430\u0440_\u0410\u0440\u0432\u0430\u043d \u0445\u043e\u0451\u0440\u0434\u0443\u0433\u0430\u0430\u0440 \u0441\u0430\u0440".split("_"),monthsShort:"1 \u0441\u0430\u0440_2 \u0441\u0430\u0440_3 \u0441\u0430\u0440_4 \u0441\u0430\u0440_5 \u0441\u0430\u0440_6 \u0441\u0430\u0440_7 \u0441\u0430\u0440_8 \u0441\u0430\u0440_9 \u0441\u0430\u0440_10 \u0441\u0430\u0440_11 \u0441\u0430\u0440_12 \u0441\u0430\u0440".split("_"),monthsParseExact:!0,weekdays:"\u041d\u044f\u043c_\u0414\u0430\u0432\u0430\u0430_\u041c\u044f\u0433\u043c\u0430\u0440_\u041b\u0445\u0430\u0433\u0432\u0430_\u041f\u04af\u0440\u044d\u0432_\u0411\u0430\u0430\u0441\u0430\u043d_\u0411\u044f\u043c\u0431\u0430".split("_"),weekdaysShort:"\u041d\u044f\u043c_\u0414\u0430\u0432_\u041c\u044f\u0433_\u041b\u0445\u0430_\u041f\u04af\u0440_\u0411\u0430\u0430_\u0411\u044f\u043c".split("_"),weekdaysMin:"\u041d\u044f_\u0414\u0430_\u041c\u044f_\u041b\u0445_\u041f\u04af_\u0411\u0430_\u0411\u044f".split("_"),weekdaysParseExact:!0,longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"YYYY-MM-DD",LL:"YYYY \u043e\u043d\u044b MMMM\u044b\u043d D",LLL:"YYYY \u043e\u043d\u044b MMMM\u044b\u043d D HH:mm",LLLL:"dddd, YYYY \u043e\u043d\u044b MMMM\u044b\u043d D HH:mm"},meridiemParse:/\u04ae\u04e8|\u04ae\u0425/i,isPM:function(e){return"\u04ae\u0425"===e},meridiem:function(e,a,_){return e<12?"\u04ae\u04e8":"\u04ae\u0425"},calendar:{sameDay:"[\u04e8\u043d\u04e9\u04e9\u0434\u04e9\u0440] LT",nextDay:"[\u041c\u0430\u0440\u0433\u0430\u0430\u0448] LT",nextWeek:"[\u0418\u0440\u044d\u0445] dddd LT",lastDay:"[\u04e8\u0447\u0438\u0433\u0434\u04e9\u0440] LT",lastWeek:"[\u04e8\u043d\u0433\u04e9\u0440\u0441\u04e9\u043d] dddd LT",sameElse:"L"},relativeTime:{future:"%s \u0434\u0430\u0440\u0430\u0430",past:"%s \u04e9\u043c\u043d\u04e9",s:g,ss:g,m:g,mm:g,h:g,hh:g,d:g,dd:g,M:g,MM:g,y:g,yy:g},dayOfMonthOrdinalParse:/\d{1,2} \u04e9\u0434\u04e9\u0440/,ordinal:function(e,a){switch(a){case"d":case"D":case"DDD":return e+" \u04e9\u0434\u04e9\u0440";default:return e}}});var Re={1:"\u0967",2:"\u0968",3:"\u0969",4:"\u096a",5:"\u096b",6:"\u096c",7:"\u096d",8:"\u096e",9:"\u096f",0:"\u0966"},Ce={"\u0967":"1","\u0968":"2","\u0969":"3","\u096a":"4","\u096b":"5","\u096c":"6","\u096d":"7","\u096e":"8","\u096f":"9","\u0966":"0"};function H(e,a,_,s){var d="";if(a)switch(_){case"s":d="\u0915\u093e\u0939\u0940 \u0938\u0947\u0915\u0902\u0926";break;case"ss":d="%d \u0938\u0947\u0915\u0902\u0926";break;case"m":d="\u090f\u0915 \u092e\u093f\u0928\u093f\u091f";break;case"mm":d="%d \u092e\u093f\u0928\u093f\u091f\u0947";break;case"h":d="\u090f\u0915 \u0924\u093e\u0938";break;case"hh":d="%d \u0924\u093e\u0938";break;case"d":d="\u090f\u0915 \u0926\u093f\u0935\u0938";break;case"dd":d="%d \u0926\u093f\u0935\u0938";break;case"M":d="\u090f\u0915 \u092e\u0939\u093f\u0928\u093e";break;case"MM":d="%d \u092e\u0939\u093f\u0928\u0947";break;case"y":d="\u090f\u0915 \u0935\u0930\u094d\u0937";break;case"yy":d="%d \u0935\u0930\u094d\u0937\u0947";break}else switch(_){case"s":d="\u0915\u093e\u0939\u0940 \u0938\u0947\u0915\u0902\u0926\u093e\u0902";break;case"ss":d="%d \u0938\u0947\u0915\u0902\u0926\u093e\u0902";break;case"m":d="\u090f\u0915\u093e \u092e\u093f\u0928\u093f\u091f\u093e";break;case"mm":d="%d \u092e\u093f\u0928\u093f\u091f\u093e\u0902";break;case"h":d="\u090f\u0915\u093e \u0924\u093e\u0938\u093e";break;case"hh":d="%d \u0924\u093e\u0938\u093e\u0902";break;case"d":d="\u090f\u0915\u093e \u0926\u093f\u0935\u0938\u093e";break;case"dd":d="%d \u0926\u093f\u0935\u0938\u093e\u0902";break;case"M":d="\u090f\u0915\u093e \u092e\u0939\u093f\u0928\u094d\u092f\u093e";break;case"MM":d="%d \u092e\u0939\u093f\u0928\u094d\u092f\u093e\u0902";break;case"y":d="\u090f\u0915\u093e \u0935\u0930\u094d\u0937\u093e";break;case"yy":d="%d \u0935\u0930\u094d\u0937\u093e\u0902";break}return d.replace(/%d/i,e)}e.defineLocale("mr",{months:"\u091c\u093e\u0928\u0947\u0935\u093e\u0930\u0940_\u092b\u0947\u092c\u094d\u0930\u0941\u0935\u093e\u0930\u0940_\u092e\u093e\u0930\u094d\u091a_\u090f\u092a\u094d\u0930\u093f\u0932_\u092e\u0947_\u091c\u0942\u0928_\u091c\u0941\u0932\u0948_\u0911\u0917\u0938\u094d\u091f_\u0938\u092a\u094d\u091f\u0947\u0902\u092c\u0930_\u0911\u0915\u094d\u091f\u094b\u092c\u0930_\u0928\u094b\u0935\u094d\u0939\u0947\u0902\u092c\u0930_\u0921\u093f\u0938\u0947\u0902\u092c\u0930".split("_"),monthsShort:"\u091c\u093e\u0928\u0947._\u092b\u0947\u092c\u094d\u0930\u0941._\u092e\u093e\u0930\u094d\u091a._\u090f\u092a\u094d\u0930\u093f._\u092e\u0947._\u091c\u0942\u0928._\u091c\u0941\u0932\u0948._\u0911\u0917._\u0938\u092a\u094d\u091f\u0947\u0902._\u0911\u0915\u094d\u091f\u094b._\u0928\u094b\u0935\u094d\u0939\u0947\u0902._\u0921\u093f\u0938\u0947\u0902.".split("_"),monthsParseExact:!0,weekdays:"\u0930\u0935\u093f\u0935\u093e\u0930_\u0938\u094b\u092e\u0935\u093e\u0930_\u092e\u0902\u0917\u0933\u0935\u093e\u0930_\u092c\u0941\u0927\u0935\u093e\u0930_\u0917\u0941\u0930\u0942\u0935\u093e\u0930_\u0936\u0941\u0915\u094d\u0930\u0935\u093e\u0930_\u0936\u0928\u093f\u0935\u093e\u0930".split("_"),weekdaysShort:"\u0930\u0935\u093f_\u0938\u094b\u092e_\u092e\u0902\u0917\u0933_\u092c\u0941\u0927_\u0917\u0941\u0930\u0942_\u0936\u0941\u0915\u094d\u0930_\u0936\u0928\u093f".split("_"),weekdaysMin:"\u0930_\u0938\u094b_\u092e\u0902_\u092c\u0941_\u0917\u0941_\u0936\u0941_\u0936".split("_"),longDateFormat:{LT:"A h:mm \u0935\u093e\u091c\u0924\u093e",LTS:"A h:mm:ss \u0935\u093e\u091c\u0924\u093e",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY, A h:mm \u0935\u093e\u091c\u0924\u093e",LLLL:"dddd, D MMMM YYYY, A h:mm \u0935\u093e\u091c\u0924\u093e"},calendar:{sameDay:"[\u0906\u091c] LT",nextDay:"[\u0909\u0926\u094d\u092f\u093e] LT",nextWeek:"dddd, LT",lastDay:"[\u0915\u093e\u0932] LT",lastWeek:"[\u092e\u093e\u0917\u0940\u0932] dddd, LT",sameElse:"L"},relativeTime:{future:"%s\u092e\u0927\u094d\u092f\u0947",past:"%s\u092a\u0942\u0930\u094d\u0935\u0940",s:H,ss:H,m:H,mm:H,h:H,hh:H,d:H,dd:H,M:H,MM:H,y:H,yy:H},preparse:function(e){return e.replace(/[\u0967\u0968\u0969\u096a\u096b\u096c\u096d\u096e\u096f\u0966]/g,function(e){return Ce[e]})},postformat:function(e){return e.replace(/\d/g,function(e){return Re[e]})},meridiemParse:/\u092a\u0939\u093e\u091f\u0947|\u0938\u0915\u093e\u0933\u0940|\u0926\u0941\u092a\u093e\u0930\u0940|\u0938\u093e\u092f\u0902\u0915\u093e\u0933\u0940|\u0930\u093e\u0924\u094d\u0930\u0940/,meridiemHour:function(e,a){return 12===e&&(e=0),"\u092a\u0939\u093e\u091f\u0947"===a||"\u0938\u0915\u093e\u0933\u0940"===a?e:"\u0926\u0941\u092a\u093e\u0930\u0940"===a||"\u0938\u093e\u092f\u0902\u0915\u093e\u0933\u0940"===a||"\u0930\u093e\u0924\u094d\u0930\u0940"===a?12<=e?e:e+12:void 0},meridiem:function(e,a,_){return 0<=e&&e<6?"\u092a\u0939\u093e\u091f\u0947":e<12?"\u0938\u0915\u093e\u0933\u0940":e<17?"\u0926\u0941\u092a\u093e\u0930\u0940":e<20?"\u0938\u093e\u092f\u0902\u0915\u093e\u0933\u0940":"\u0930\u093e\u0924\u094d\u0930\u0940"},week:{dow:0,doy:6}}),e.defineLocale("ms-my",{months:"Januari_Februari_Mac_April_Mei_Jun_Julai_Ogos_September_Oktober_November_Disember".split("_"),monthsShort:"Jan_Feb_Mac_Apr_Mei_Jun_Jul_Ogs_Sep_Okt_Nov_Dis".split("_"),weekdays:"Ahad_Isnin_Selasa_Rabu_Khamis_Jumaat_Sabtu".split("_"),weekdaysShort:"Ahd_Isn_Sel_Rab_Kha_Jum_Sab".split("_"),weekdaysMin:"Ah_Is_Sl_Rb_Km_Jm_Sb".split("_"),longDateFormat:{LT:"HH.mm",LTS:"HH.mm.ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY [pukul] HH.mm",LLLL:"dddd, D MMMM YYYY [pukul] HH.mm"},meridiemParse:/pagi|tengahari|petang|malam/,meridiemHour:function(e,a){return 12===e&&(e=0),"pagi"===a?e:"tengahari"===a?11<=e?e:e+12:"petang"===a||"malam"===a?e+12:void 0},meridiem:function(e,a,_){return e<11?"pagi":e<15?"tengahari":e<19?"petang":"malam"},calendar:{sameDay:"[Hari ini pukul] LT",nextDay:"[Esok pukul] LT",nextWeek:"dddd [pukul] LT",lastDay:"[Kelmarin pukul] LT",lastWeek:"dddd [lepas pukul] LT",sameElse:"L"},relativeTime:{future:"dalam %s",past:"%s yang lepas",s:"beberapa saat",ss:"%d saat",m:"seminit",mm:"%d minit",h:"sejam",hh:"%d jam",d:"sehari",dd:"%d hari",M:"sebulan",MM:"%d bulan",y:"setahun",yy:"%d tahun"},week:{dow:1,doy:7}}),e.defineLocale("ms",{months:"Januari_Februari_Mac_April_Mei_Jun_Julai_Ogos_September_Oktober_November_Disember".split("_"),monthsShort:"Jan_Feb_Mac_Apr_Mei_Jun_Jul_Ogs_Sep_Okt_Nov_Dis".split("_"),weekdays:"Ahad_Isnin_Selasa_Rabu_Khamis_Jumaat_Sabtu".split("_"),weekdaysShort:"Ahd_Isn_Sel_Rab_Kha_Jum_Sab".split("_"),weekdaysMin:"Ah_Is_Sl_Rb_Km_Jm_Sb".split("_"),longDateFormat:{LT:"HH.mm",LTS:"HH.mm.ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY [pukul] HH.mm",LLLL:"dddd, D MMMM YYYY [pukul] HH.mm"},meridiemParse:/pagi|tengahari|petang|malam/,meridiemHour:function(e,a){return 12===e&&(e=0),"pagi"===a?e:"tengahari"===a?11<=e?e:e+12:"petang"===a||"malam"===a?e+12:void 0},meridiem:function(e,a,_){return e<11?"pagi":e<15?"tengahari":e<19?"petang":"malam"},calendar:{sameDay:"[Hari ini pukul] LT",nextDay:"[Esok pukul] LT",nextWeek:"dddd [pukul] LT",lastDay:"[Kelmarin pukul] LT",lastWeek:"dddd [lepas pukul] LT",sameElse:"L"},relativeTime:{future:"dalam %s",past:"%s yang lepas",s:"beberapa saat",ss:"%d saat",m:"seminit",mm:"%d minit",h:"sejam",hh:"%d jam",d:"sehari",dd:"%d hari",M:"sebulan",MM:"%d bulan",y:"setahun",yy:"%d tahun"},week:{dow:1,doy:7}}),e.defineLocale("mt",{months:"Jannar_Frar_Marzu_April_Mejju_\u0120unju_Lulju_Awwissu_Settembru_Ottubru_Novembru_Di\u010bembru".split("_"),monthsShort:"Jan_Fra_Mar_Apr_Mej_\u0120un_Lul_Aww_Set_Ott_Nov_Di\u010b".split("_"),weekdays:"Il-\u0126add_It-Tnejn_It-Tlieta_L-Erbg\u0127a_Il-\u0126amis_Il-\u0120img\u0127a_Is-Sibt".split("_"),weekdaysShort:"\u0126ad_Tne_Tli_Erb_\u0126am_\u0120im_Sib".split("_"),weekdaysMin:"\u0126a_Tn_Tl_Er_\u0126a_\u0120i_Si".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd, D MMMM YYYY HH:mm"},calendar:{sameDay:"[Illum fil-]LT",nextDay:"[G\u0127ada fil-]LT",nextWeek:"dddd [fil-]LT",lastDay:"[Il-biera\u0127 fil-]LT",lastWeek:"dddd [li g\u0127adda] [fil-]LT",sameElse:"L"},relativeTime:{future:"f\u2019 %s",past:"%s ilu",s:"ftit sekondi",ss:"%d sekondi",m:"minuta",mm:"%d minuti",h:"sieg\u0127a",hh:"%d sieg\u0127at",d:"\u0121urnata",dd:"%d \u0121ranet",M:"xahar",MM:"%d xhur",y:"sena",yy:"%d sni"},dayOfMonthOrdinalParse:/\d{1,2}\xba/,ordinal:"%d\xba",week:{dow:1,doy:4}});var Ke={1:"\u1041",2:"\u1042",3:"\u1043",4:"\u1044",5:"\u1045",6:"\u1046",7:"\u1047",8:"\u1048",9:"\u1049",0:"\u1040"},Be={"\u1041":"1","\u1042":"2","\u1043":"3","\u1044":"4","\u1045":"5","\u1046":"6","\u1047":"7","\u1048":"8","\u1049":"9","\u1040":"0"},qe=(e.defineLocale("my",{months:"\u1007\u1014\u103a\u1014\u101d\u102b\u101b\u102e_\u1016\u1031\u1016\u1031\u102c\u103a\u101d\u102b\u101b\u102e_\u1019\u1010\u103a_\u1027\u1015\u103c\u102e_\u1019\u1031_\u1007\u103d\u1014\u103a_\u1007\u1030\u101c\u102d\u102f\u1004\u103a_\u101e\u103c\u1002\u102f\u1010\u103a_\u1005\u1000\u103a\u1010\u1004\u103a\u1018\u102c_\u1021\u1031\u102c\u1000\u103a\u1010\u102d\u102f\u1018\u102c_\u1014\u102d\u102f\u101d\u1004\u103a\u1018\u102c_\u1012\u102e\u1007\u1004\u103a\u1018\u102c".split("_"),monthsShort:"\u1007\u1014\u103a_\u1016\u1031_\u1019\u1010\u103a_\u1015\u103c\u102e_\u1019\u1031_\u1007\u103d\u1014\u103a_\u101c\u102d\u102f\u1004\u103a_\u101e\u103c_\u1005\u1000\u103a_\u1021\u1031\u102c\u1000\u103a_\u1014\u102d\u102f_\u1012\u102e".split("_"),weekdays:"\u1010\u1014\u1004\u103a\u1039\u1002\u1014\u103d\u1031_\u1010\u1014\u1004\u103a\u1039\u101c\u102c_\u1021\u1004\u103a\u1039\u1002\u102b_\u1017\u102f\u1012\u1039\u1013\u101f\u1030\u1038_\u1000\u103c\u102c\u101e\u1015\u1010\u1031\u1038_\u101e\u1031\u102c\u1000\u103c\u102c_\u1005\u1014\u1031".split("_"),weekdaysShort:"\u1014\u103d\u1031_\u101c\u102c_\u1002\u102b_\u101f\u1030\u1038_\u1000\u103c\u102c_\u101e\u1031\u102c_\u1014\u1031".split("_"),weekdaysMin:"\u1014\u103d\u1031_\u101c\u102c_\u1002\u102b_\u101f\u1030\u1038_\u1000\u103c\u102c_\u101e\u1031\u102c_\u1014\u1031".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D 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an",yy:S},week:{dow:1,doy:7}});m=[/^\u044f\u043d\u0432/i,/^\u0444\u0435\u0432/i,/^\u043c\u0430\u0440/i,/^\u0430\u043f\u0440/i,/^\u043c\u0430[\u0439\u044f]/i,/^\u0438\u044e\u043d/i,/^\u0438\u044e\u043b/i,/^\u0430\u0432\u0433/i,/^\u0441\u0435\u043d/i,/^\u043e\u043a\u0442/i,/^\u043d\u043e\u044f/i,/^\u0434\u0435\u043a/i],e.defineLocale("ru",{months:{format:"\u044f\u043d\u0432\u0430\u0440\u044f_\u0444\u0435\u0432\u0440\u0430\u043b\u044f_\u043c\u0430\u0440\u0442\u0430_\u0430\u043f\u0440\u0435\u043b\u044f_\u043c\u0430\u044f_\u0438\u044e\u043d\u044f_\u0438\u044e\u043b\u044f_\u0430\u0432\u0433\u0443\u0441\u0442\u0430_\u0441\u0435\u043d\u0442\u044f\u0431\u0440\u044f_\u043e\u043a\u0442\u044f\u0431\u0440\u044f_\u043d\u043e\u044f\u0431\u0440\u044f_\u0434\u0435\u043a\u0430\u0431\u0440\u044f".split("_"),standalone:"\u044f\u043d\u0432\u0430\u0440\u044c_\u0444\u0435\u0432\u0440\u0430\u043b\u044c_\u043c\u0430\u0440\u0442_\u0430\u043f\u0440\u0435\u043b\u044c_\u043c\u0430\u0439_\u0438\u044e\u043d\u044c_\u0438\u044e\u043b\u044c_\u0430\u0432\u0433\u0443\u0441\u0442_\u0441\u0435\u043d\u0442\u044f\u0431\u0440\u044c_\u043e\u043a\u0442\u044f\u0431\u0440\u044c_\u043d\u043e\u044f\u0431\u0440\u044c_\u0434\u0435\u043a\u0430\u0431\u0440\u044c".split("_")},monthsShort:{format:"\u044f\u043d\u0432._\u0444\u0435\u0432\u0440._\u043c\u0430\u0440._\u0430\u043f\u0440._\u043c\u0430\u044f_\u0438\u044e\u043d\u044f_\u0438\u044e\u043b\u044f_\u0430\u0432\u0433._\u0441\u0435\u043d\u0442._\u043e\u043a\u0442._\u043d\u043e\u044f\u0431._\u0434\u0435\u043a.".split("_"),standalone:"\u044f\u043d\u0432._\u0444\u0435\u0432\u0440._\u043c\u0430\u0440\u0442_\u0430\u043f\u0440._\u043c\u0430\u0439_\u0438\u044e\u043d\u044c_\u0438\u044e\u043b\u044c_\u0430\u0432\u0433._\u0441\u0435\u043d\u0442._\u043e\u043a\u0442._\u043d\u043e\u044f\u0431._\u0434\u0435\u043a.".split("_")},weekdays:{standalone:"\u0432\u043e\u0441\u043a\u0440\u0435\u0441\u0435\u043d\u044c\u0435_\u043f\u043e\u043d\u0435\u0434\u0435\u043b\u044c\u043d\u0438\u043a_\u0432\u0442\u043e\u0440\u043d\u0438\u043a_\u0441\u0440\u0435\u0434\u0430_\u0447\u0435\u0442\u0432\u0435\u0440\u0433_\u043f\u044f\u0442\u043d\u0438\u0446\u0430_\u0441\u0443\u0431\u0431\u043e\u0442\u0430".split("_"),format:"\u0432\u043e\u0441\u043a\u0440\u0435\u0441\u0435\u043d\u044c\u0435_\u043f\u043e\u043d\u0435\u0434\u0435\u043b\u044c\u043d\u0438\u043a_\u0432\u0442\u043e\u0440\u043d\u0438\u043a_\u0441\u0440\u0435\u0434\u0443_\u0447\u0435\u0442\u0432\u0435\u0440\u0433_\u043f\u044f\u0442\u043d\u0438\u0446\u0443_\u0441\u0443\u0431\u0431\u043e\u0442\u0443".split("_"),isFormat:/\[ ?[\u0412\u0432] ?(?:\u043f\u0440\u043e\u0448\u043b\u0443\u044e|\u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0443\u044e|\u044d\u0442\u0443)? ?] ?dddd/},weekdaysShort:"\u0432\u0441_\u043f\u043d_\u0432\u0442_\u0441\u0440_\u0447\u0442_\u043f\u0442_\u0441\u0431".split("_"),weekdaysMin:"\u0432\u0441_\u043f\u043d_\u0432\u0442_\u0441\u0440_\u0447\u0442_\u043f\u0442_\u0441\u0431".split("_"),monthsParse:m,longMonthsParse:m,shortMonthsParse:m,monthsRegex:/^(\u044f\u043d\u0432\u0430\u0440[\u044c\u044f]|\u044f\u043d\u0432\.?|\u0444\u0435\u0432\u0440\u0430\u043b[\u044c\u044f]|\u0444\u0435\u0432\u0440?\.?|\u043c\u0430\u0440\u0442\u0430?|\u043c\u0430\u0440\.?|\u0430\u043f\u0440\u0435\u043b[\u044c\u044f]|\u0430\u043f\u0440\.?|\u043c\u0430[\u0439\u044f]|\u0438\u044e\u043d[\u044c\u044f]|\u0438\u044e\u043d\.?|\u0438\u044e\u043b[\u044c\u044f]|\u0438\u044e\u043b\.?|\u0430\u0432\u0433\u0443\u0441\u0442\u0430?|\u0430\u0432\u0433\.?|\u0441\u0435\u043d\u0442\u044f\u0431\u0440[\u044c\u044f]|\u0441\u0435\u043d\u0442?\.?|\u043e\u043a\u0442\u044f\u0431\u0440[\u044c\u044f]|\u043e\u043a\u0442\.?|\u043d\u043e\u044f\u0431\u0440[\u044c\u044f]|\u043d\u043e\u044f\u0431?\.?|\u0434\u0435\u043a\u0430\u0431\u0440[\u044c\u044f]|\u0434\u0435\u043a\.?)/i,monthsShortRegex:/^(\u044f\u043d\u0432\u0430\u0440[\u044c\u044f]|\u044f\u043d\u0432\.?|\u0444\u0435\u0432\u0440\u0430\u043b[\u044c\u044f]|\u0444\u0435\u0432\u0440?\.?|\u043c\u0430\u0440\u0442\u0430?|\u043c\u0430\u0440\.?|\u0430\u043f\u0440\u0435\u043b[\u044c\u044f]|\u0430\u043f\u0440\.?|\u043c\u0430[\u0439\u044f]|\u0438\u044e\u043d[\u044c\u044f]|\u0438\u044e\u043d\.?|\u0438\u044e\u043b[\u044c\u044f]|\u0438\u044e\u043b\.?|\u0430\u0432\u0433\u0443\u0441\u0442\u0430?|\u0430\u0432\u0433\.?|\u0441\u0435\u043d\u0442\u044f\u0431\u0440[\u044c\u044f]|\u0441\u0435\u043d\u0442?\.?|\u043e\u043a\u0442\u044f\u0431\u0440[\u044c\u044f]|\u043e\u043a\u0442\.?|\u043d\u043e\u044f\u0431\u0440[\u044c\u044f]|\u043d\u043e\u044f\u0431?\.?|\u0434\u0435\u043a\u0430\u0431\u0440[\u044c\u044f]|\u0434\u0435\u043a\.?)/i,monthsStrictRegex:/^(\u044f\u043d\u0432\u0430\u0440[\u044f\u044c]|\u0444\u0435\u0432\u0440\u0430\u043b[\u044f\u044c]|\u043c\u0430\u0440\u0442\u0430?|\u0430\u043f\u0440\u0435\u043b[\u044f\u044c]|\u043c\u0430[\u044f\u0439]|\u0438\u044e\u043d[\u044f\u044c]|\u0438\u044e\u043b[\u044f\u044c]|\u0430\u0432\u0433\u0443\u0441\u0442\u0430?|\u0441\u0435\u043d\u0442\u044f\u0431\u0440[\u044f\u044c]|\u043e\u043a\u0442\u044f\u0431\u0440[\u044f\u044c]|\u043d\u043e\u044f\u0431\u0440[\u044f\u044c]|\u0434\u0435\u043a\u0430\u0431\u0440[\u044f\u044c])/i,monthsShortStrictRegex:/^(\u044f\u043d\u0432\.|\u0444\u0435\u0432\u0440?\.|\u043c\u0430\u0440[\u0442.]|\u0430\u043f\u0440\.|\u043c\u0430[\u044f\u0439]|\u0438\u044e\u043d[\u044c\u044f.]|\u0438\u044e\u043b[\u044c\u044f.]|\u0430\u0432\u0433\.|\u0441\u0435\u043d\u0442?\.|\u043e\u043a\u0442\.|\u043d\u043e\u044f\u0431?\.|\u0434\u0435\u043a\.)/i,longDateFormat:{LT:"H:mm",LTS:"H:mm:ss",L:"DD.MM.YYYY",LL:"D MMMM YYYY \u0433.",LLL:"D MMMM YYYY \u0433., H:mm",LLLL:"dddd, D MMMM YYYY \u0433., H:mm"},calendar:{sameDay:"[\u0421\u0435\u0433\u043e\u0434\u043d\u044f, \u0432] LT",nextDay:"[\u0417\u0430\u0432\u0442\u0440\u0430, \u0432] LT",lastDay:"[\u0412\u0447\u0435\u0440\u0430, \u0432] LT",nextWeek:function(e){if(e.week()===this.week())return 2===this.day()?"[\u0412\u043e] dddd, [\u0432] LT":"[\u0412] dddd, [\u0432] LT";switch(this.day()){case 0:return"[\u0412 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0435\u0435] dddd, [\u0432] LT";case 1:case 2:case 4:return"[\u0412 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0439] dddd, [\u0432] LT";case 3:case 5:case 6:return"[\u0412 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0443\u044e] dddd, [\u0432] LT"}},lastWeek:function(e){if(e.week()===this.week())return 2===this.day()?"[\u0412\u043e] dddd, [\u0432] LT":"[\u0412] dddd, [\u0432] LT";switch(this.day()){case 0:return"[\u0412 \u043f\u0440\u043e\u0448\u043b\u043e\u0435] dddd, [\u0432] LT";case 1:case 2:case 4:return"[\u0412 \u043f\u0440\u043e\u0448\u043b\u044b\u0439] dddd, [\u0432] LT";case 3:case 5:case 6:return"[\u0412 \u043f\u0440\u043e\u0448\u043b\u0443\u044e] dddd, [\u0432] LT"}},sameElse:"L"},relativeTime:{future:"\u0447\u0435\u0440\u0435\u0437 %s",past:"%s \u043d\u0430\u0437\u0430\u0434",s:"\u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u0441\u0435\u043a\u0443\u043d\u0434",ss:v,m:v,mm:v,h:"\u0447\u0430\u0441",hh:v,d:"\u0434\u0435\u043d\u044c",dd:v,w:"\u043d\u0435\u0434\u0435\u043b\u044f",ww:v,M:"\u043c\u0435\u0441\u044f\u0446",MM:v,y:"\u0433\u043e\u0434",yy:v},meridiemParse:/\u043d\u043e\u0447\u0438|\u0443\u0442\u0440\u0430|\u0434\u043d\u044f|\u0432\u0435\u0447\u0435\u0440\u0430/i,isPM:function(e){return/^(\u0434\u043d\u044f|\u0432\u0435\u0447\u0435\u0440\u0430)$/.test(e)},meridiem:function(e,a,_){return e<4?"\u043d\u043e\u0447\u0438":e<12?"\u0443\u0442\u0440\u0430":e<17?"\u0434\u043d\u044f":"\u0432\u0435\u0447\u0435\u0440\u0430"},dayOfMonthOrdinalParse:/\d{1,2}-(\u0439|\u0433\u043e|\u044f)/,ordinal:function(e,a){switch(a){case"M":case"d":case"DDD":return e+"-\u0439";case"D":return e+"-\u0433\u043e";case"w":case"W":return e+"-\u044f";default:return e}},week:{dow:1,doy:4}}),n=["\u062c\u0646\u0648\u0631\u064a","\u0641\u064a\u0628\u0631\u0648\u0631\u064a","\u0645\u0627\u0631\u0686","\u0627\u067e\u0631\u064a\u0644","\u0645\u0626\u064a","\u062c\u0648\u0646","\u062c\u0648\u0644\u0627\u0621\u0650","\u0622\u06af\u0633\u067d","\u0633\u064a\u067e\u067d\u0645\u0628\u0631","\u0622\u06aa\u067d\u0648\u0628\u0631","\u0646\u0648\u0645\u0628\u0631","\u068a\u0633\u0645\u0628\u0631"],r=["\u0622\u0686\u0631","\u0633\u0648\u0645\u0631","\u0627\u06b1\u0627\u0631\u0648","\u0627\u0631\u0628\u0639","\u062e\u0645\u064a\u0633","\u062c\u0645\u0639","\u0687\u0646\u0687\u0631"],e.defineLocale("sd",{months:n,monthsShort:n,weekdays:r,weekdaysShort:r,weekdaysMin:r,longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd\u060c D MMMM YYYY HH:mm"},meridiemParse:/\u0635\u0628\u062d|\u0634\u0627\u0645/,isPM:function(e){return"\u0634\u0627\u0645"===e},meridiem:function(e,a,_){return e<12?"\u0635\u0628\u062d":"\u0634\u0627\u0645"},calendar:{sameDay:"[\u0627\u0684] LT",nextDay:"[\u0633\u0680\u0627\u06bb\u064a] LT",nextWeek:"dddd [\u0627\u06b3\u064a\u0646 \u0647\u0641\u062a\u064a \u062a\u064a] LT",lastDay:"[\u06aa\u0627\u0644\u0647\u0647] LT",lastWeek:"[\u06af\u0632\u0631\u064a\u0644 \u0647\u0641\u062a\u064a] dddd [\u062a\u064a] LT",sameElse:"L"},relativeTime:{future:"%s \u067e\u0648\u0621",past:"%s \u0627\u06b3",s:"\u0686\u0646\u062f \u0633\u064a\u06aa\u0646\u068a",ss:"%d \u0633\u064a\u06aa\u0646\u068a",m:"\u0647\u06aa \u0645\u0646\u067d",mm:"%d \u0645\u0646\u067d",h:"\u0647\u06aa \u06aa\u0644\u0627\u06aa",hh:"%d \u06aa\u0644\u0627\u06aa",d:"\u0647\u06aa \u068f\u064a\u0646\u0647\u0646",dd:"%d \u068f\u064a\u0646\u0647\u0646",M:"\u0647\u06aa \u0645\u0647\u064a\u0646\u0648",MM:"%d \u0645\u0647\u064a\u0646\u0627",y:"\u0647\u06aa \u0633\u0627\u0644",yy:"%d \u0633\u0627\u0644"},preparse:function(e){return e.replace(/\u060c/g,",")},postformat:function(e){return e.replace(/,/g,"\u060c")},week:{dow:1,doy:4}}),e.defineLocale("se",{months:"o\u0111\u0111ajagem\xe1nnu_guovvam\xe1nnu_njuk\u010dam\xe1nnu_cuo\u014bom\xe1nnu_miessem\xe1nnu_geassem\xe1nnu_suoidnem\xe1nnu_borgem\xe1nnu_\u010dak\u010dam\xe1nnu_golggotm\xe1nnu_sk\xe1bmam\xe1nnu_juovlam\xe1nnu".split("_"),monthsShort:"o\u0111\u0111j_guov_njuk_cuo_mies_geas_suoi_borg_\u010dak\u010d_golg_sk\xe1b_juov".split("_"),weekdays:"sotnabeaivi_vuoss\xe1rga_ma\u014b\u014beb\xe1rga_gaskavahkku_duorastat_bearjadat_l\xe1vvardat".split("_"),weekdaysShort:"sotn_vuos_ma\u014b_gask_duor_bear_l\xe1v".split("_"),weekdaysMin:"s_v_m_g_d_b_L".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD.MM.YYYY",LL:"MMMM D. [b.] YYYY",LLL:"MMMM D. [b.] YYYY [ti.] HH:mm",LLLL:"dddd, MMMM D. [b.] YYYY [ti.] HH:mm"},calendar:{sameDay:"[otne ti] LT",nextDay:"[ihttin ti] LT",nextWeek:"dddd [ti] LT",lastDay:"[ikte ti] LT",lastWeek:"[ovddit] dddd [ti] LT",sameElse:"L"},relativeTime:{future:"%s gea\u017ees",past:"ma\u014bit %s",s:"moadde sekunddat",ss:"%d sekunddat",m:"okta minuhta",mm:"%d minuhtat",h:"okta diimmu",hh:"%d diimmut",d:"okta beaivi",dd:"%d beaivvit",M:"okta m\xe1nnu",MM:"%d m\xe1nut",y:"okta jahki",yy:"%d 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h:mm",LTS:"a h:mm:ss",L:"YYYY/MM/DD",LL:"YYYY MMMM D",LLL:"YYYY MMMM D, a h:mm",LLLL:"YYYY MMMM D [\u0dc0\u0dd0\u0db1\u0dd2] dddd, a h:mm:ss"},calendar:{sameDay:"[\u0d85\u0daf] LT[\u0da7]",nextDay:"[\u0dc4\u0dd9\u0da7] LT[\u0da7]",nextWeek:"dddd LT[\u0da7]",lastDay:"[\u0d8a\u0dba\u0dda] LT[\u0da7]",lastWeek:"[\u0db4\u0dc3\u0dd4\u0d9c\u0dd2\u0dba] dddd LT[\u0da7]",sameElse:"L"},relativeTime:{future:"%s\u0d9a\u0dd2\u0db1\u0dca",past:"%s\u0d9a\u0da7 \u0db4\u0dd9\u0dbb",s:"\u0dad\u0dad\u0dca\u0db4\u0dbb \u0d9a\u0dd2\u0dc4\u0dd2\u0db4\u0dba",ss:"\u0dad\u0dad\u0dca\u0db4\u0dbb %d",m:"\u0db8\u0dd2\u0db1\u0dd2\u0dad\u0dca\u0dad\u0dd4\u0dc0",mm:"\u0db8\u0dd2\u0db1\u0dd2\u0dad\u0dca\u0dad\u0dd4 %d",h:"\u0db4\u0dd0\u0dba",hh:"\u0db4\u0dd0\u0dba %d",d:"\u0daf\u0dd2\u0db1\u0dba",dd:"\u0daf\u0dd2\u0db1 %d",M:"\u0db8\u0dcf\u0dc3\u0dba",MM:"\u0db8\u0dcf\u0dc3 %d",y:"\u0dc0\u0dc3\u0dbb",yy:"\u0dc0\u0dc3\u0dbb %d"},dayOfMonthOrdinalParse:/\d{1,2} \u0dc0\u0dd0\u0db1\u0dd2/,ordinal:function(e){return e+" 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12===e&&(e=0),"\u0baf\u0bbe\u0bae\u0bae\u0bcd"===a?e<2?e:e+12:"\u0bb5\u0bc8\u0b95\u0bb1\u0bc8"===a||"\u0b95\u0bbe\u0bb2\u0bc8"===a||"\u0ba8\u0ba3\u0bcd\u0baa\u0b95\u0bb2\u0bcd"===a&&10<=e?e:e+12},week:{dow:0,doy:6}}),e.defineLocale("te",{months:"\u0c1c\u0c28\u0c35\u0c30\u0c3f_\u0c2b\u0c3f\u0c2c\u0c4d\u0c30\u0c35\u0c30\u0c3f_\u0c2e\u0c3e\u0c30\u0c4d\u0c1a\u0c3f_\u0c0f\u0c2a\u0c4d\u0c30\u0c3f\u0c32\u0c4d_\u0c2e\u0c47_\u0c1c\u0c42\u0c28\u0c4d_\u0c1c\u0c41\u0c32\u0c48_\u0c06\u0c17\u0c38\u0c4d\u0c1f\u0c41_\u0c38\u0c46\u0c2a\u0c4d\u0c1f\u0c46\u0c02\u0c2c\u0c30\u0c4d_\u0c05\u0c15\u0c4d\u0c1f\u0c4b\u0c2c\u0c30\u0c4d_\u0c28\u0c35\u0c02\u0c2c\u0c30\u0c4d_\u0c21\u0c3f\u0c38\u0c46\u0c02\u0c2c\u0c30\u0c4d".split("_"),monthsShort:"\u0c1c\u0c28._\u0c2b\u0c3f\u0c2c\u0c4d\u0c30._\u0c2e\u0c3e\u0c30\u0c4d\u0c1a\u0c3f_\u0c0f\u0c2a\u0c4d\u0c30\u0c3f._\u0c2e\u0c47_\u0c1c\u0c42\u0c28\u0c4d_\u0c1c\u0c41\u0c32\u0c48_\u0c06\u0c17._\u0c38\u0c46\u0c2a\u0c4d._\u0c05\u0c15\u0c4d\u0c1f\u0c4b._\u0c28\u0c35._\u0c21\u0c3f\u0c38\u0c46.".split("_"),monthsParseExact:!0,weekdays:"\u0c06\u0c26\u0c3f\u0c35\u0c3e\u0c30\u0c02_\u0c38\u0c4b\u0c2e\u0c35\u0c3e\u0c30\u0c02_\u0c2e\u0c02\u0c17\u0c33\u0c35\u0c3e\u0c30\u0c02_\u0c2c\u0c41\u0c27\u0c35\u0c3e\u0c30\u0c02_\u0c17\u0c41\u0c30\u0c41\u0c35\u0c3e\u0c30\u0c02_\u0c36\u0c41\u0c15\u0c4d\u0c30\u0c35\u0c3e\u0c30\u0c02_\u0c36\u0c28\u0c3f\u0c35\u0c3e\u0c30\u0c02".split("_"),weekdaysShort:"\u0c06\u0c26\u0c3f_\u0c38\u0c4b\u0c2e_\u0c2e\u0c02\u0c17\u0c33_\u0c2c\u0c41\u0c27_\u0c17\u0c41\u0c30\u0c41_\u0c36\u0c41\u0c15\u0c4d\u0c30_\u0c36\u0c28\u0c3f".split("_"),weekdaysMin:"\u0c06_\u0c38\u0c4b_\u0c2e\u0c02_\u0c2c\u0c41_\u0c17\u0c41_\u0c36\u0c41_\u0c36".split("_"),longDateFormat:{LT:"A h:mm",LTS:"A h:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY, A h:mm",LLLL:"dddd, D MMMM YYYY, A h:mm"},calendar:{sameDay:"[\u0c28\u0c47\u0c21\u0c41] LT",nextDay:"[\u0c30\u0c47\u0c2a\u0c41] LT",nextWeek:"dddd, LT",lastDay:"[\u0c28\u0c3f\u0c28\u0c4d\u0c28] LT",lastWeek:"[\u0c17\u0c24] dddd, LT",sameElse:"L"},relativeTime:{future:"%s \u0c32\u0c4b",past:"%s \u0c15\u0c4d\u0c30\u0c3f\u0c24\u0c02",s:"\u0c15\u0c4a\u0c28\u0c4d\u0c28\u0c3f \u0c15\u0c4d\u0c37\u0c23\u0c3e\u0c32\u0c41",ss:"%d \u0c38\u0c46\u0c15\u0c28\u0c4d\u0c32\u0c41",m:"\u0c12\u0c15 \u0c28\u0c3f\u0c2e\u0c3f\u0c37\u0c02",mm:"%d \u0c28\u0c3f\u0c2e\u0c3f\u0c37\u0c3e\u0c32\u0c41",h:"\u0c12\u0c15 \u0c17\u0c02\u0c1f",hh:"%d \u0c17\u0c02\u0c1f\u0c32\u0c41",d:"\u0c12\u0c15 \u0c30\u0c4b\u0c1c\u0c41",dd:"%d \u0c30\u0c4b\u0c1c\u0c41\u0c32\u0c41",M:"\u0c12\u0c15 \u0c28\u0c46\u0c32",MM:"%d \u0c28\u0c46\u0c32\u0c32\u0c41",y:"\u0c12\u0c15 \u0c38\u0c02\u0c35\u0c24\u0c4d\u0c38\u0c30\u0c02",yy:"%d \u0c38\u0c02\u0c35\u0c24\u0c4d\u0c38\u0c30\u0c3e\u0c32\u0c41"},dayOfMonthOrdinalParse:/\d{1,2}\u0c35/,ordinal:"%d\u0c35",meridiemParse:/\u0c30\u0c3e\u0c24\u0c4d\u0c30\u0c3f|\u0c09\u0c26\u0c2f\u0c02|\u0c2e\u0c27\u0c4d\u0c2f\u0c3e\u0c39\u0c4d\u0c28\u0c02|\u0c38\u0c3e\u0c2f\u0c02\u0c24\u0c4d\u0c30\u0c02/,meridiemHour:function(e,a){return 12===e&&(e=0),"\u0c30\u0c3e\u0c24\u0c4d\u0c30\u0c3f"===a?e<4?e:e+12:"\u0c09\u0c26\u0c2f\u0c02"===a?e:"\u0c2e\u0c27\u0c4d\u0c2f\u0c3e\u0c39\u0c4d\u0c28\u0c02"===a?10<=e?e:e+12:"\u0c38\u0c3e\u0c2f\u0c02\u0c24\u0c4d\u0c30\u0c02"===a?e+12:void 0},meridiem:function(e,a,_){return e<4?"\u0c30\u0c3e\u0c24\u0c4d\u0c30\u0c3f":e<10?"\u0c09\u0c26\u0c2f\u0c02":e<17?"\u0c2e\u0c27\u0c4d\u0c2f\u0c3e\u0c39\u0c4d\u0c28\u0c02":e<20?"\u0c38\u0c3e\u0c2f\u0c02\u0c24\u0c4d\u0c30\u0c02":"\u0c30\u0c3e\u0c24\u0c4d\u0c30\u0c3f"},week:{dow:0,doy:6}}),e.defineLocale("tet",{months:"Janeiru_Fevereiru_Marsu_Abril_Maiu_Ju\xf1u_Jullu_Agustu_Setembru_Outubru_Novembru_Dezembru".split("_"),monthsShort:"Jan_Fev_Mar_Abr_Mai_Jun_Jul_Ago_Set_Out_Nov_Dez".split("_"),weekdays:"Domingu_Segunda_Tersa_Kuarta_Kinta_Sesta_Sabadu".split("_"),weekdaysShort:"Dom_Seg_Ters_Kua_Kint_Sest_Sab".split("_"),weekdaysMin:"Do_Seg_Te_Ku_Ki_Ses_Sa".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd, D MMMM YYYY HH:mm"},calendar:{sameDay:"[Ohin iha] LT",nextDay:"[Aban iha] LT",nextWeek:"dddd [iha] LT",lastDay:"[Horiseik iha] LT",lastWeek:"dddd [semana kotuk] [iha] LT",sameElse:"L"},relativeTime:{future:"iha %s",past:"%s liuba",s:"segundu balun",ss:"segundu %d",m:"minutu ida",mm:"minutu %d",h:"oras ida",hh:"oras %d",d:"loron ida",dd:"loron %d",M:"fulan ida",MM:"fulan %d",y:"tinan ida",yy:"tinan %d"},dayOfMonthOrdinalParse:/\d{1,2}(st|nd|rd|th)/,ordinal:function(e){var a=e%10;return e+(1==~~(e%100/10)?"th":1==a?"st":2==a?"nd":3==a?"rd":"th")},week:{dow:1,doy:4}}),{0:"-\u0443\u043c",1:"-\u0443\u043c",2:"-\u044e\u043c",3:"-\u044e\u043c",4:"-\u0443\u043c",5:"-\u0443\u043c",6:"-\u0443\u043c",7:"-\u0443\u043c",8:"-\u0443\u043c",9:"-\u0443\u043c",10:"-\u0443\u043c",12:"-\u0443\u043c",13:"-\u0443\u043c",20:"-\u0443\u043c",30:"-\u044e\u043c",40:"-\u0443\u043c",50:"-\u0443\u043c",60:"-\u0443\u043c",70:"-\u0443\u043c",80:"-\u0443\u043c",90:"-\u0443\u043c",100:"-\u0443\u043c"}),ra=(e.defineLocale("tg",{months:{format:"\u044f\u043d\u0432\u0430\u0440\u0438_\u0444\u0435\u0432\u0440\u0430\u043b\u0438_\u043c\u0430\u0440\u0442\u0438_\u0430\u043f\u0440\u0435\u043b\u0438_\u043c\u0430\u0439\u0438_\u0438\u044e\u043d\u0438_\u0438\u044e\u043b\u0438_\u0430\u0432\u0433\u0443\u0441\u0442\u0438_\u0441\u0435\u043d\u0442\u044f\u0431\u0440\u0438_\u043e\u043a\u0442\u044f\u0431\u0440\u0438_\u043d\u043e\u044f\u0431\u0440\u0438_\u0434\u0435\u043a\u0430\u0431\u0440\u0438".split("_"),standalone:"\u044f\u043d\u0432\u0430\u0440_\u0444\u0435\u0432\u0440\u0430\u043b_\u043c\u0430\u0440\u0442_\u0430\u043f\u0440\u0435\u043b_\u043c\u0430\u0439_\u0438\u044e\u043d_\u0438\u044e\u043b_\u0430\u0432\u0433\u0443\u0441\u0442_\u0441\u0435\u043d\u0442\u044f\u0431\u0440_\u043e\u043a\u0442\u044f\u0431\u0440_\u043d\u043e\u044f\u0431\u0440_\u0434\u0435\u043a\u0430\u0431\u0440".split("_")},monthsShort:"\u044f\u043d\u0432_\u0444\u0435\u0432_\u043c\u0430\u0440_\u0430\u043f\u0440_\u043c\u0430\u0439_\u0438\u044e\u043d_\u0438\u044e\u043b_\u0430\u0432\u0433_\u0441\u0435\u043d_\u043e\u043a\u0442_\u043d\u043e\u044f_\u0434\u0435\u043a".split("_"),weekdays:"\u044f\u043a\u0448\u0430\u043d\u0431\u0435_\u0434\u0443\u0448\u0430\u043d\u0431\u0435_\u0441\u0435\u0448\u0430\u043d\u0431\u0435_\u0447\u043e\u0440\u0448\u0430\u043d\u0431\u0435_\u043f\u0430\u043d\u04b7\u0448\u0430\u043d\u0431\u0435_\u04b7\u0443\u043c\u044a\u0430_\u0448\u0430\u043d\u0431\u0435".split("_"),weekdaysShort:"\u044f\u0448\u0431_\u0434\u0448\u0431_\u0441\u0448\u0431_\u0447\u0448\u0431_\u043f\u0448\u0431_\u04b7\u0443\u043c_\u0448\u043d\u0431".split("_"),weekdaysMin:"\u044f\u0448_\u0434\u0448_\u0441\u0448_\u0447\u0448_\u043f\u0448_\u04b7\u043c_\u0448\u0431".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD.MM.YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd, D MMMM YYYY HH:mm"},calendar:{sameDay:"[\u0418\u043c\u0440\u04ef\u0437 \u0441\u043e\u0430\u0442\u0438] LT",nextDay:"[\u0424\u0430\u0440\u0434\u043e \u0441\u043e\u0430\u0442\u0438] LT",lastDay:"[\u0414\u0438\u0440\u04ef\u0437 \u0441\u043e\u0430\u0442\u0438] LT",nextWeek:"dddd[\u0438] [\u04b3\u0430\u0444\u0442\u0430\u0438 \u043e\u044f\u043d\u0434\u0430 \u0441\u043e\u0430\u0442\u0438] LT",lastWeek:"dddd[\u0438] [\u04b3\u0430\u0444\u0442\u0430\u0438 \u0433\u0443\u0437\u0430\u0448\u0442\u0430 \u0441\u043e\u0430\u0442\u0438] LT",sameElse:"L"},relativeTime:{future:"\u0431\u0430\u044a\u0434\u0438 %s",past:"%s \u043f\u0435\u0448",s:"\u044f\u043a\u0447\u0430\u043d\u0434 \u0441\u043e\u043d\u0438\u044f",m:"\u044f\u043a \u0434\u0430\u049b\u0438\u049b\u0430",mm:"%d \u0434\u0430\u049b\u0438\u049b\u0430",h:"\u044f\u043a \u0441\u043e\u0430\u0442",hh:"%d \u0441\u043e\u0430\u0442",d:"\u044f\u043a \u0440\u04ef\u0437",dd:"%d \u0440\u04ef\u0437",M:"\u044f\u043a 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e+(na[e]||na[e%10]||na[100<=e?100:null])},week:{dow:1,doy:7}}),e.defineLocale("th",{months:"\u0e21\u0e01\u0e23\u0e32\u0e04\u0e21_\u0e01\u0e38\u0e21\u0e20\u0e32\u0e1e\u0e31\u0e19\u0e18\u0e4c_\u0e21\u0e35\u0e19\u0e32\u0e04\u0e21_\u0e40\u0e21\u0e29\u0e32\u0e22\u0e19_\u0e1e\u0e24\u0e29\u0e20\u0e32\u0e04\u0e21_\u0e21\u0e34\u0e16\u0e38\u0e19\u0e32\u0e22\u0e19_\u0e01\u0e23\u0e01\u0e0e\u0e32\u0e04\u0e21_\u0e2a\u0e34\u0e07\u0e2b\u0e32\u0e04\u0e21_\u0e01\u0e31\u0e19\u0e22\u0e32\u0e22\u0e19_\u0e15\u0e38\u0e25\u0e32\u0e04\u0e21_\u0e1e\u0e24\u0e28\u0e08\u0e34\u0e01\u0e32\u0e22\u0e19_\u0e18\u0e31\u0e19\u0e27\u0e32\u0e04\u0e21".split("_"),monthsShort:"\u0e21.\u0e04._\u0e01.\u0e1e._\u0e21\u0e35.\u0e04._\u0e40\u0e21.\u0e22._\u0e1e.\u0e04._\u0e21\u0e34.\u0e22._\u0e01.\u0e04._\u0e2a.\u0e04._\u0e01.\u0e22._\u0e15.\u0e04._\u0e1e.\u0e22._\u0e18.\u0e04.".split("_"),monthsParseExact:!0,weekdays:"\u0e2d\u0e32\u0e17\u0e34\u0e15\u0e22\u0e4c_\u0e08\u0e31\u0e19\u0e17\u0e23\u0e4c_\u0e2d\u0e31\u0e07\u0e04\u0e32\u0e23_\u0e1e\u0e38\u0e18_\u0e1e\u0e24\u0e2b\u0e31\u0e2a\u0e1a\u0e14\u0e35_\u0e28\u0e38\u0e01\u0e23\u0e4c_\u0e40\u0e2a\u0e32\u0e23\u0e4c".split("_"),weekdaysShort:"\u0e2d\u0e32\u0e17\u0e34\u0e15\u0e22\u0e4c_\u0e08\u0e31\u0e19\u0e17\u0e23\u0e4c_\u0e2d\u0e31\u0e07\u0e04\u0e32\u0e23_\u0e1e\u0e38\u0e18_\u0e1e\u0e24\u0e2b\u0e31\u0e2a_\u0e28\u0e38\u0e01\u0e23\u0e4c_\u0e40\u0e2a\u0e32\u0e23\u0e4c".split("_"),weekdaysMin:"\u0e2d\u0e32._\u0e08._\u0e2d._\u0e1e._\u0e1e\u0e24._\u0e28._\u0e2a.".split("_"),weekdaysParseExact:!0,longDateFormat:{LT:"H:mm",LTS:"H:mm:ss",L:"DD/MM/YYYY",LL:"D 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LT",sameElse:"L"},relativeTime:{future:"dadkh s yan %s",past:"yan %s",s:"imik",ss:"%d imik",m:"minu\u1e0d",mm:"%d minu\u1e0d",h:"sa\u025ba",hh:"%d tassa\u025bin",d:"ass",dd:"%d ossan",M:"ayowr",MM:"%d iyyirn",y:"asgas",yy:"%d isgasn"},week:{dow:6,doy:12}}),e.defineLocale("tzm",{months:"\u2d49\u2d4f\u2d4f\u2d30\u2d62\u2d54_\u2d31\u2d55\u2d30\u2d62\u2d55_\u2d4e\u2d30\u2d55\u2d5a_\u2d49\u2d31\u2d54\u2d49\u2d54_\u2d4e\u2d30\u2d62\u2d62\u2d53_\u2d62\u2d53\u2d4f\u2d62\u2d53_\u2d62\u2d53\u2d4d\u2d62\u2d53\u2d63_\u2d56\u2d53\u2d5b\u2d5c_\u2d5b\u2d53\u2d5c\u2d30\u2d4f\u2d31\u2d49\u2d54_\u2d3d\u2d5f\u2d53\u2d31\u2d55_\u2d4f\u2d53\u2d61\u2d30\u2d4f\u2d31\u2d49\u2d54_\u2d37\u2d53\u2d4a\u2d4f\u2d31\u2d49\u2d54".split("_"),monthsShort:"\u2d49\u2d4f\u2d4f\u2d30\u2d62\u2d54_\u2d31\u2d55\u2d30\u2d62\u2d55_\u2d4e\u2d30\u2d55\u2d5a_\u2d49\u2d31\u2d54\u2d49\u2d54_\u2d4e\u2d30\u2d62\u2d62\u2d53_\u2d62\u2d53\u2d4f\u2d62\u2d53_\u2d62\u2d53\u2d4d\u2d62\u2d53\u2d63_\u2d56\u2d53\u2d5b\u2d5c_\u2d5b\u2d53\u2d5c\u2d30\u2d4f\u2d31\u2d49\u2d54_\u2d3d\u2d5f\u2d53\u2d31\u2d55_\u2d4f\u2d53\u2d61\u2d30\u2d4f\u2d31\u2d49\u2d54_\u2d37\u2d53\u2d4a\u2d4f\u2d31\u2d49\u2d54".split("_"),weekdays:"\u2d30\u2d59\u2d30\u2d4e\u2d30\u2d59_\u2d30\u2d62\u2d4f\u2d30\u2d59_\u2d30\u2d59\u2d49\u2d4f\u2d30\u2d59_\u2d30\u2d3d\u2d54\u2d30\u2d59_\u2d30\u2d3d\u2d61\u2d30\u2d59_\u2d30\u2d59\u2d49\u2d4e\u2d61\u2d30\u2d59_\u2d30\u2d59\u2d49\u2d39\u2d62\u2d30\u2d59".split("_"),weekdaysShort:"\u2d30\u2d59\u2d30\u2d4e\u2d30\u2d59_\u2d30\u2d62\u2d4f\u2d30\u2d59_\u2d30\u2d59\u2d49\u2d4f\u2d30\u2d59_\u2d30\u2d3d\u2d54\u2d30\u2d59_\u2d30\u2d3d\u2d61\u2d30\u2d59_\u2d30\u2d59\u2d49\u2d4e\u2d61\u2d30\u2d59_\u2d30\u2d59\u2d49\u2d39\u2d62\u2d30\u2d59".split("_"),weekdaysMin:"\u2d30\u2d59\u2d30\u2d4e\u2d30\u2d59_\u2d30\u2d62\u2d4f\u2d30\u2d59_\u2d30\u2d59\u2d49\u2d4f\u2d30\u2d59_\u2d30\u2d3d\u2d54\u2d30\u2d59_\u2d30\u2d3d\u2d61\u2d30\u2d59_\u2d30\u2d59\u2d49\u2d4e\u2d61\u2d30\u2d59_\u2d30\u2d59\u2d49\u2d39\u2d62\u2d30\u2d59".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd D MMMM YYYY HH:mm"},calendar:{sameDay:"[\u2d30\u2d59\u2d37\u2d45 \u2d34] LT",nextDay:"[\u2d30\u2d59\u2d3d\u2d30 \u2d34] LT",nextWeek:"dddd [\u2d34] LT",lastDay:"[\u2d30\u2d5a\u2d30\u2d4f\u2d5c \u2d34] LT",lastWeek:"dddd [\u2d34] LT",sameElse:"L"},relativeTime:{future:"\u2d37\u2d30\u2d37\u2d45 \u2d59 \u2d62\u2d30\u2d4f %s",past:"\u2d62\u2d30\u2d4f %s",s:"\u2d49\u2d4e\u2d49\u2d3d",ss:"%d \u2d49\u2d4e\u2d49\u2d3d",m:"\u2d4e\u2d49\u2d4f\u2d53\u2d3a",mm:"%d \u2d4e\u2d49\u2d4f\u2d53\u2d3a",h:"\u2d59\u2d30\u2d44\u2d30",hh:"%d \u2d5c\u2d30\u2d59\u2d59\u2d30\u2d44\u2d49\u2d4f",d:"\u2d30\u2d59\u2d59",dd:"%d o\u2d59\u2d59\u2d30\u2d4f",M:"\u2d30\u2d62o\u2d53\u2d54",MM:"%d \u2d49\u2d62\u2d62\u2d49\u2d54\u2d4f",y:"\u2d30\u2d59\u2d33\u2d30\u2d59",yy:"%d \u2d49\u2d59\u2d33\u2d30\u2d59\u2d4f"},week:{dow:6,doy:12}}),e.defineLocale("ug-cn",{months:"\u064a\u0627\u0646\u06cb\u0627\u0631_\u0641\u06d0\u06cb\u0631\u0627\u0644_\u0645\u0627\u0631\u062a_\u0626\u0627\u067e\u0631\u06d0\u0644_\u0645\u0627\u064a_\u0626\u0649\u064a\u06c7\u0646_\u0626\u0649\u064a\u06c7\u0644_\u0626\u0627\u06cb\u063a\u06c7\u0633\u062a_\u0633\u06d0\u0646\u062a\u06d5\u0628\u0649\u0631_\u0626\u06c6\u0643\u062a\u06d5\u0628\u0649\u0631_\u0646\u0648\u064a\u0627\u0628\u0649\u0631_\u062f\u06d0\u0643\u0627\u0628\u0649\u0631".split("_"),monthsShort:"\u064a\u0627\u0646\u06cb\u0627\u0631_\u0641\u06d0\u06cb\u0631\u0627\u0644_\u0645\u0627\u0631\u062a_\u0626\u0627\u067e\u0631\u06d0\u0644_\u0645\u0627\u064a_\u0626\u0649\u064a\u06c7\u0646_\u0626\u0649\u064a\u06c7\u0644_\u0626\u0627\u06cb\u063a\u06c7\u0633\u062a_\u0633\u06d0\u0646\u062a\u06d5\u0628\u0649\u0631_\u0626\u06c6\u0643\u062a\u06d5\u0628\u0649\u0631_\u0646\u0648\u064a\u0627\u0628\u0649\u0631_\u062f\u06d0\u0643\u0627\u0628\u0649\u0631".split("_"),weekdays:"\u064a\u06d5\u0643\u0634\u06d5\u0646\u0628\u06d5_\u062f\u06c8\u0634\u06d5\u0646\u0628\u06d5_\u0633\u06d5\u064a\u0634\u06d5\u0646\u0628\u06d5_\u0686\u0627\u0631\u0634\u06d5\u0646\u0628\u06d5_\u067e\u06d5\u064a\u0634\u06d5\u0646\u0628\u06d5_\u062c\u06c8\u0645\u06d5_\u0634\u06d5\u0646\u0628\u06d5".split("_"),weekdaysShort:"\u064a\u06d5_\u062f\u06c8_\u0633\u06d5_\u0686\u0627_\u067e\u06d5_\u062c\u06c8_\u0634\u06d5".split("_"),weekdaysMin:"\u064a\u06d5_\u062f\u06c8_\u0633\u06d5_\u0686\u0627_\u067e\u06d5_\u062c\u06c8_\u0634\u06d5".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"YYYY-MM-DD",LL:"YYYY-\u064a\u0649\u0644\u0649M-\u0626\u0627\u064a\u0646\u0649\u06adD-\u0643\u06c8\u0646\u0649",LLL:"YYYY-\u064a\u0649\u0644\u0649M-\u0626\u0627\u064a\u0646\u0649\u06adD-\u0643\u06c8\u0646\u0649\u060c HH:mm",LLLL:"dddd\u060c YYYY-\u064a\u0649\u0644\u0649M-\u0626\u0627\u064a\u0646\u0649\u06adD-\u0643\u06c8\u0646\u0649\u060c HH:mm"},meridiemParse:/\u064a\u06d0\u0631\u0649\u0645 \u0643\u06d0\u0686\u06d5|\u0633\u06d5\u06be\u06d5\u0631|\u0686\u06c8\u0634\u062a\u0649\u0646 \u0628\u06c7\u0631\u06c7\u0646|\u0686\u06c8\u0634|\u0686\u06c8\u0634\u062a\u0649\u0646 \u0643\u06d0\u064a\u0649\u0646|\u0643\u06d5\u0686/,meridiemHour:function(e,a){return 12===e&&(e=0),"\u064a\u06d0\u0631\u0649\u0645 \u0643\u06d0\u0686\u06d5"===a||"\u0633\u06d5\u06be\u06d5\u0631"===a||"\u0686\u06c8\u0634\u062a\u0649\u0646 \u0628\u06c7\u0631\u06c7\u0646"===a||"\u0686\u06c8\u0634\u062a\u0649\u0646 \u0643\u06d0\u064a\u0649\u0646"!==a&&"\u0643\u06d5\u0686"!==a&&11<=e?e:e+12},meridiem:function(e,a,_){e=100*e+a;return e<600?"\u064a\u06d0\u0631\u0649\u0645 \u0643\u06d0\u0686\u06d5":e<900?"\u0633\u06d5\u06be\u06d5\u0631":e<1130?"\u0686\u06c8\u0634\u062a\u0649\u0646 \u0628\u06c7\u0631\u06c7\u0646":e<1230?"\u0686\u06c8\u0634":e<1800?"\u0686\u06c8\u0634\u062a\u0649\u0646 \u0643\u06d0\u064a\u0649\u0646":"\u0643\u06d5\u0686"},calendar:{sameDay:"[\u0628\u06c8\u06af\u06c8\u0646 \u0633\u0627\u0626\u06d5\u062a] LT",nextDay:"[\u0626\u06d5\u062a\u06d5 \u0633\u0627\u0626\u06d5\u062a] LT",nextWeek:"[\u0643\u06d0\u0644\u06d5\u0631\u0643\u0649] dddd [\u0633\u0627\u0626\u06d5\u062a] LT",lastDay:"[\u062a\u06c6\u0646\u06c8\u06af\u06c8\u0646] LT",lastWeek:"[\u0626\u0627\u0644\u062f\u0649\u0646\u0642\u0649] dddd [\u0633\u0627\u0626\u06d5\u062a] LT",sameElse:"L"},relativeTime:{future:"%s \u0643\u06d0\u064a\u0649\u0646",past:"%s \u0628\u06c7\u0631\u06c7\u0646",s:"\u0646\u06d5\u0686\u0686\u06d5 \u0633\u06d0\u0643\u0648\u0646\u062a",ss:"%d \u0633\u06d0\u0643\u0648\u0646\u062a",m:"\u0628\u0649\u0631 \u0645\u0649\u0646\u06c7\u062a",mm:"%d \u0645\u0649\u0646\u06c7\u062a",h:"\u0628\u0649\u0631 \u0633\u0627\u0626\u06d5\u062a",hh:"%d \u0633\u0627\u0626\u06d5\u062a",d:"\u0628\u0649\u0631 \u0643\u06c8\u0646",dd:"%d \u0643\u06c8\u0646",M:"\u0628\u0649\u0631 \u0626\u0627\u064a",MM:"%d \u0626\u0627\u064a",y:"\u0628\u0649\u0631 \u064a\u0649\u0644",yy:"%d \u064a\u0649\u0644"},dayOfMonthOrdinalParse:/\d{1,2}(-\u0643\u06c8\u0646\u0649|-\u0626\u0627\u064a|-\u06be\u06d5\u067e\u062a\u06d5)/,ordinal:function(e,a){switch(a){case"d":case"D":case"DDD":return e+"-\u0643\u06c8\u0646\u0649";case"w":case"W":return e+"-\u06be\u06d5\u067e\u062a\u06d5";default:return e}},preparse:function(e){return e.replace(/\u060c/g,",")},postformat:function(e){return e.replace(/,/g,"\u060c")},week:{dow:1,doy:7}}),e.defineLocale("uk",{months:{format:"\u0441\u0456\u0447\u043d\u044f_\u043b\u044e\u0442\u043e\u0433\u043e_\u0431\u0435\u0440\u0435\u0437\u043d\u044f_\u043a\u0432\u0456\u0442\u043d\u044f_\u0442\u0440\u0430\u0432\u043d\u044f_\u0447\u0435\u0440\u0432\u043d\u044f_\u043b\u0438\u043f\u043d\u044f_\u0441\u0435\u0440\u043f\u043d\u044f_\u0432\u0435\u0440\u0435\u0441\u043d\u044f_\u0436\u043e\u0432\u0442\u043d\u044f_\u043b\u0438\u0441\u0442\u043e\u043f\u0430\u0434\u0430_\u0433\u0440\u0443\u0434\u043d\u044f".split("_"),standalone:"\u0441\u0456\u0447\u0435\u043d\u044c_\u043b\u044e\u0442\u0438\u0439_\u0431\u0435\u0440\u0435\u0437\u0435\u043d\u044c_\u043a\u0432\u0456\u0442\u0435\u043d\u044c_\u0442\u0440\u0430\u0432\u0435\u043d\u044c_\u0447\u0435\u0440\u0432\u0435\u043d\u044c_\u043b\u0438\u043f\u0435\u043d\u044c_\u0441\u0435\u0440\u043f\u0435\u043d\u044c_\u0432\u0435\u0440\u0435\u0441\u0435\u043d\u044c_\u0436\u043e\u0432\u0442\u0435\u043d\u044c_\u043b\u0438\u0441\u0442\u043e\u043f\u0430\u0434_\u0433\u0440\u0443\u0434\u0435\u043d\u044c".split("_")},monthsShort:"\u0441\u0456\u0447_\u043b\u044e\u0442_\u0431\u0435\u0440_\u043a\u0432\u0456\u0442_\u0442\u0440\u0430\u0432_\u0447\u0435\u0440\u0432_\u043b\u0438\u043f_\u0441\u0435\u0440\u043f_\u0432\u0435\u0440_\u0436\u043e\u0432\u0442_\u043b\u0438\u0441\u0442_\u0433\u0440\u0443\u0434".split("_"),weekdays:function(e,a){var _={nominative:"\u043d\u0435\u0434\u0456\u043b\u044f_\u043f\u043e\u043d\u0435\u0434\u0456\u043b\u043e\u043a_\u0432\u0456\u0432\u0442\u043e\u0440\u043e\u043a_\u0441\u0435\u0440\u0435\u0434\u0430_\u0447\u0435\u0442\u0432\u0435\u0440_\u043f\u2019\u044f\u0442\u043d\u0438\u0446\u044f_\u0441\u0443\u0431\u043e\u0442\u0430".split("_"),accusative:"\u043d\u0435\u0434\u0456\u043b\u044e_\u043f\u043e\u043d\u0435\u0434\u0456\u043b\u043e\u043a_\u0432\u0456\u0432\u0442\u043e\u0440\u043e\u043a_\u0441\u0435\u0440\u0435\u0434\u0443_\u0447\u0435\u0442\u0432\u0435\u0440_\u043f\u2019\u044f\u0442\u043d\u0438\u0446\u044e_\u0441\u0443\u0431\u043e\u0442\u0443".split("_"),genitive:"\u043d\u0435\u0434\u0456\u043b\u0456_\u043f\u043e\u043d\u0435\u0434\u0456\u043b\u043a\u0430_\u0432\u0456\u0432\u0442\u043e\u0440\u043a\u0430_\u0441\u0435\u0440\u0435\u0434\u0438_\u0447\u0435\u0442\u0432\u0435\u0440\u0433\u0430_\u043f\u2019\u044f\u0442\u043d\u0438\u0446\u0456_\u0441\u0443\u0431\u043e\u0442\u0438".split("_")};return!0===e?_.nominative.slice(1,7).concat(_.nominative.slice(0,1)):e?_[/(\[[\u0412\u0432\u0423\u0443]\]) ?dddd/.test(a)?"accusative":/\[?(?:\u043c\u0438\u043d\u0443\u043b\u043e\u0457|\u043d\u0430\u0441\u0442\u0443\u043f\u043d\u043e\u0457)? ?\] ?dddd/.test(a)?"genitive":"nominative"][e.day()]:_.nominative},weekdaysShort:"\u043d\u0434_\u043f\u043d_\u0432\u0442_\u0441\u0440_\u0447\u0442_\u043f\u0442_\u0441\u0431".split("_"),weekdaysMin:"\u043d\u0434_\u043f\u043d_\u0432\u0442_\u0441\u0440_\u0447\u0442_\u043f\u0442_\u0441\u0431".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD.MM.YYYY",LL:"D MMMM YYYY \u0440.",LLL:"D MMMM YYYY \u0440., HH:mm",LLLL:"dddd, D MMMM YYYY \u0440., HH:mm"},calendar:{sameDay:ua("[\u0421\u044c\u043e\u0433\u043e\u0434\u043d\u0456 "),nextDay:ua("[\u0417\u0430\u0432\u0442\u0440\u0430 "),lastDay:ua("[\u0412\u0447\u043e\u0440\u0430 "),nextWeek:ua("[\u0423] dddd ["),lastWeek:function(){switch(this.day()){case 0:case 3:case 5:case 6:return ua("[\u041c\u0438\u043d\u0443\u043b\u043e\u0457] dddd [").call(this);case 1:case 2:case 4:return ua("[\u041c\u0438\u043d\u0443\u043b\u043e\u0433\u043e] dddd [").call(this)}},sameElse:"L"},relativeTime:{future:"\u0437\u0430 %s",past:"%s \u0442\u043e\u043c\u0443",s:"\u0434\u0435\u043a\u0456\u043b\u044c\u043a\u0430 \u0441\u0435\u043a\u0443\u043d\u0434",ss:O,m:O,mm:O,h:"\u0433\u043e\u0434\u0438\u043d\u0443",hh:O,d:"\u0434\u0435\u043d\u044c",dd:O,M:"\u043c\u0456\u0441\u044f\u0446\u044c",MM:O,y:"\u0440\u0456\u043a",yy:O},meridiemParse:/\u043d\u043e\u0447\u0456|\u0440\u0430\u043d\u043a\u0443|\u0434\u043d\u044f|\u0432\u0435\u0447\u043e\u0440\u0430/,isPM:function(e){return/^(\u0434\u043d\u044f|\u0432\u0435\u0447\u043e\u0440\u0430)$/.test(e)},meridiem:function(e,a,_){return e<4?"\u043d\u043e\u0447\u0456":e<12?"\u0440\u0430\u043d\u043a\u0443":e<17?"\u0434\u043d\u044f":"\u0432\u0435\u0447\u043e\u0440\u0430"},dayOfMonthOrdinalParse:/\d{1,2}-(\u0439|\u0433\u043e)/,ordinal:function(e,a){switch(a){case"M":case"d":case"DDD":case"w":case"W":return e+"-\u0439";case"D":return e+"-\u0433\u043e";default:return e}},week:{dow:1,doy:7}});n=["\u062c\u0646\u0648\u0631\u06cc","\u0641\u0631\u0648\u0631\u06cc","\u0645\u0627\u0631\u0686","\u0627\u067e\u0631\u06cc\u0644","\u0645\u0626\u06cc","\u062c\u0648\u0646","\u062c\u0648\u0644\u0627\u0626\u06cc","\u0627\u06af\u0633\u062a","\u0633\u062a\u0645\u0628\u0631","\u0627\u06a9\u062a\u0648\u0628\u0631","\u0646\u0648\u0645\u0628\u0631","\u062f\u0633\u0645\u0628\u0631"],r=["\u0627\u062a\u0648\u0627\u0631","\u067e\u06cc\u0631","\u0645\u0646\u06af\u0644","\u0628\u062f\u06be","\u062c\u0645\u0639\u0631\u0627\u062a","\u062c\u0645\u0639\u06c1","\u06c1\u0641\u062a\u06c1"];return e.defineLocale("ur",{months:n,monthsShort:n,weekdays:r,weekdaysShort:r,weekdaysMin:r,longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd\u060c D MMMM YYYY HH:mm"},meridiemParse:/\u0635\u0628\u062d|\u0634\u0627\u0645/,isPM:function(e){return"\u0634\u0627\u0645"===e},meridiem:function(e,a,_){return e<12?"\u0635\u0628\u062d":"\u0634\u0627\u0645"},calendar:{sameDay:"[\u0622\u062c \u0628\u0648\u0642\u062a] LT",nextDay:"[\u06a9\u0644 \u0628\u0648\u0642\u062a] LT",nextWeek:"dddd [\u0628\u0648\u0642\u062a] LT",lastDay:"[\u06af\u0630\u0634\u062a\u06c1 \u0631\u0648\u0632 \u0628\u0648\u0642\u062a] LT",lastWeek:"[\u06af\u0630\u0634\u062a\u06c1] dddd [\u0628\u0648\u0642\u062a] LT",sameElse:"L"},relativeTime:{future:"%s \u0628\u0639\u062f",past:"%s \u0642\u0628\u0644",s:"\u0686\u0646\u062f \u0633\u06cc\u06a9\u0646\u0688",ss:"%d \u0633\u06cc\u06a9\u0646\u0688",m:"\u0627\u06cc\u06a9 \u0645\u0646\u0679",mm:"%d \u0645\u0646\u0679",h:"\u0627\u06cc\u06a9 \u06af\u06be\u0646\u0679\u06c1",hh:"%d \u06af\u06be\u0646\u0679\u06d2",d:"\u0627\u06cc\u06a9 \u062f\u0646",dd:"%d \u062f\u0646",M:"\u0627\u06cc\u06a9 \u0645\u0627\u06c1",MM:"%d \u0645\u0627\u06c1",y:"\u0627\u06cc\u06a9 \u0633\u0627\u0644",yy:"%d \u0633\u0627\u0644"},preparse:function(e){return e.replace(/\u060c/g,",")},postformat:function(e){return e.replace(/,/g,"\u060c")},week:{dow:1,doy:4}}),e.defineLocale("uz-latn",{months:"Yanvar_Fevral_Mart_Aprel_May_Iyun_Iyul_Avgust_Sentabr_Oktabr_Noyabr_Dekabr".split("_"),monthsShort:"Yan_Fev_Mar_Apr_May_Iyun_Iyul_Avg_Sen_Okt_Noy_Dek".split("_"),weekdays:"Yakshanba_Dushanba_Seshanba_Chorshanba_Payshanba_Juma_Shanba".split("_"),weekdaysShort:"Yak_Dush_Sesh_Chor_Pay_Jum_Shan".split("_"),weekdaysMin:"Ya_Du_Se_Cho_Pa_Ju_Sha".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"D MMMM YYYY, dddd HH:mm"},calendar:{sameDay:"[Bugun soat] LT [da]",nextDay:"[Ertaga] LT [da]",nextWeek:"dddd [kuni soat] LT [da]",lastDay:"[Kecha soat] LT [da]",lastWeek:"[O'tgan] dddd [kuni soat] LT [da]",sameElse:"L"},relativeTime:{future:"Yaqin %s ichida",past:"Bir necha %s oldin",s:"soniya",ss:"%d soniya",m:"bir daqiqa",mm:"%d daqiqa",h:"bir soat",hh:"%d soat",d:"bir kun",dd:"%d kun",M:"bir oy",MM:"%d oy",y:"bir yil",yy:"%d yil"},week:{dow:1,doy:7}}),e.defineLocale("uz",{months:"\u044f\u043d\u0432\u0430\u0440_\u0444\u0435\u0432\u0440\u0430\u043b_\u043c\u0430\u0440\u0442_\u0430\u043f\u0440\u0435\u043b_\u043c\u0430\u0439_\u0438\u044e\u043d_\u0438\u044e\u043b_\u0430\u0432\u0433\u0443\u0441\u0442_\u0441\u0435\u043d\u0442\u044f\u0431\u0440_\u043e\u043a\u0442\u044f\u0431\u0440_\u043d\u043e\u044f\u0431\u0440_\u0434\u0435\u043a\u0430\u0431\u0440".split("_"),monthsShort:"\u044f\u043d\u0432_\u0444\u0435\u0432_\u043c\u0430\u0440_\u0430\u043f\u0440_\u043c\u0430\u0439_\u0438\u044e\u043d_\u0438\u044e\u043b_\u0430\u0432\u0433_\u0441\u0435\u043d_\u043e\u043a\u0442_\u043d\u043e\u044f_\u0434\u0435\u043a".split("_"),weekdays:"\u042f\u043a\u0448\u0430\u043d\u0431\u0430_\u0414\u0443\u0448\u0430\u043d\u0431\u0430_\u0421\u0435\u0448\u0430\u043d\u0431\u0430_\u0427\u043e\u0440\u0448\u0430\u043d\u0431\u0430_\u041f\u0430\u0439\u0448\u0430\u043d\u0431\u0430_\u0416\u0443\u043c\u0430_\u0428\u0430\u043d\u0431\u0430".split("_"),weekdaysShort:"\u042f\u043a\u0448_\u0414\u0443\u0448_\u0421\u0435\u0448_\u0427\u043e\u0440_\u041f\u0430\u0439_\u0416\u0443\u043c_\u0428\u0430\u043d".split("_"),weekdaysMin:"\u042f\u043a_\u0414\u0443_\u0421\u0435_\u0427\u043e_\u041f\u0430_\u0416\u0443_\u0428\u0430".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"D MMMM YYYY, dddd HH:mm"},calendar:{sameDay:"[\u0411\u0443\u0433\u0443\u043d \u0441\u043e\u0430\u0442] LT [\u0434\u0430]",nextDay:"[\u042d\u0440\u0442\u0430\u0433\u0430] LT [\u0434\u0430]",nextWeek:"dddd [\u043a\u0443\u043d\u0438 \u0441\u043e\u0430\u0442] LT [\u0434\u0430]",lastDay:"[\u041a\u0435\u0447\u0430 \u0441\u043e\u0430\u0442] LT [\u0434\u0430]",lastWeek:"[\u0423\u0442\u0433\u0430\u043d] dddd [\u043a\u0443\u043d\u0438 \u0441\u043e\u0430\u0442] LT [\u0434\u0430]",sameElse:"L"},relativeTime:{future:"\u042f\u043a\u0438\u043d %s \u0438\u0447\u0438\u0434\u0430",past:"\u0411\u0438\u0440 \u043d\u0435\u0447\u0430 %s \u043e\u043b\u0434\u0438\u043d",s:"\u0444\u0443\u0440\u0441\u0430\u0442",ss:"%d \u0444\u0443\u0440\u0441\u0430\u0442",m:"\u0431\u0438\u0440 \u0434\u0430\u043a\u0438\u043a\u0430",mm:"%d \u0434\u0430\u043a\u0438\u043a\u0430",h:"\u0431\u0438\u0440 \u0441\u043e\u0430\u0442",hh:"%d \u0441\u043e\u0430\u0442",d:"\u0431\u0438\u0440 \u043a\u0443\u043d",dd:"%d \u043a\u0443\u043d",M:"\u0431\u0438\u0440 \u043e\u0439",MM:"%d \u043e\u0439",y:"\u0431\u0438\u0440 \u0439\u0438\u043b",yy:"%d \u0439\u0438\u043b"},week:{dow:1,doy:7}}),e.defineLocale("vi",{months:"th\xe1ng 1_th\xe1ng 2_th\xe1ng 3_th\xe1ng 4_th\xe1ng 5_th\xe1ng 6_th\xe1ng 7_th\xe1ng 8_th\xe1ng 9_th\xe1ng 10_th\xe1ng 11_th\xe1ng 12".split("_"),monthsShort:"Thg 01_Thg 02_Thg 03_Thg 04_Thg 05_Thg 06_Thg 07_Thg 08_Thg 09_Thg 10_Thg 11_Thg 12".split("_"),monthsParseExact:!0,weekdays:"ch\u1ee7 nh\u1eadt_th\u1ee9 hai_th\u1ee9 ba_th\u1ee9 t\u01b0_th\u1ee9 n\u0103m_th\u1ee9 s\xe1u_th\u1ee9 b\u1ea3y".split("_"),weekdaysShort:"CN_T2_T3_T4_T5_T6_T7".split("_"),weekdaysMin:"CN_T2_T3_T4_T5_T6_T7".split("_"),weekdaysParseExact:!0,meridiemParse:/sa|ch/i,isPM:function(e){return/^ch$/i.test(e)},meridiem:function(e,a,_){return e<12?_?"sa":"SA":_?"ch":"CH"},longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM [n\u0103m] YYYY",LLL:"D MMMM [n\u0103m] YYYY HH:mm",LLLL:"dddd, D MMMM [n\u0103m] YYYY HH:mm",l:"DD/M/YYYY",ll:"D MMM YYYY",lll:"D MMM YYYY HH:mm",llll:"ddd, D MMM YYYY HH:mm"},calendar:{sameDay:"[H\xf4m nay l\xfac] LT",nextDay:"[Ng\xe0y mai l\xfac] LT",nextWeek:"dddd [tu\u1ea7n t\u1edbi l\xfac] LT",lastDay:"[H\xf4m qua l\xfac] LT",lastWeek:"dddd [tu\u1ea7n tr\u01b0\u1edbc l\xfac] LT",sameElse:"L"},relativeTime:{future:"%s t\u1edbi",past:"%s tr\u01b0\u1edbc",s:"v\xe0i gi\xe2y",ss:"%d gi\xe2y",m:"m\u1ed9t ph\xfat",mm:"%d ph\xfat",h:"m\u1ed9t gi\u1edd",hh:"%d gi\u1edd",d:"m\u1ed9t ng\xe0y",dd:"%d ng\xe0y",w:"m\u1ed9t tu\u1ea7n",ww:"%d tu\u1ea7n",M:"m\u1ed9t th\xe1ng",MM:"%d th\xe1ng",y:"m\u1ed9t n\u0103m",yy:"%d n\u0103m"},dayOfMonthOrdinalParse:/\d{1,2}/,ordinal:function(e){return e},week:{dow:1,doy:4}}),e.defineLocale("x-pseudo",{months:"J~\xe1\xf1\xfa\xe1~r\xfd_F~\xe9br\xfa~\xe1r\xfd_~M\xe1rc~h_\xc1p~r\xedl_~M\xe1\xfd_~J\xfa\xf1\xe9~_J\xfal~\xfd_\xc1\xfa~g\xfast~_S\xe9p~t\xe9mb~\xe9r_\xd3~ct\xf3b~\xe9r_\xd1~\xf3v\xe9m~b\xe9r_~D\xe9c\xe9~mb\xe9r".split("_"),monthsShort:"J~\xe1\xf1_~F\xe9b_~M\xe1r_~\xc1pr_~M\xe1\xfd_~J\xfa\xf1_~J\xfal_~\xc1\xfag_~S\xe9p_~\xd3ct_~\xd1\xf3v_~D\xe9c".split("_"),monthsParseExact:!0,weekdays:"S~\xfa\xf1d\xe1~\xfd_M\xf3~\xf1d\xe1\xfd~_T\xfa\xe9~sd\xe1\xfd~_W\xe9d~\xf1\xe9sd~\xe1\xfd_T~h\xfars~d\xe1\xfd_~Fr\xedd~\xe1\xfd_S~\xe1t\xfar~d\xe1\xfd".split("_"),weekdaysShort:"S~\xfa\xf1_~M\xf3\xf1_~T\xfa\xe9_~W\xe9d_~Th\xfa_~Fr\xed_~S\xe1t".split("_"),weekdaysMin:"S~\xfa_M\xf3~_T\xfa_~W\xe9_T~h_Fr~_S\xe1".split("_"),weekdaysParseExact:!0,longDateFormat:{LT:"HH:mm",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd, D MMMM YYYY HH:mm"},calendar:{sameDay:"[T~\xf3d\xe1~\xfd \xe1t] LT",nextDay:"[T~\xf3m\xf3~rr\xf3~w \xe1t] LT",nextWeek:"dddd [\xe1t] LT",lastDay:"[\xdd~\xe9st~\xe9rd\xe1~\xfd \xe1t] LT",lastWeek:"[L~\xe1st] dddd [\xe1t] LT",sameElse:"L"},relativeTime:{future:"\xed~\xf1 %s",past:"%s \xe1~g\xf3",s:"\xe1 ~f\xe9w ~s\xe9c\xf3~\xf1ds",ss:"%d s~\xe9c\xf3\xf1~ds",m:"\xe1 ~m\xed\xf1~\xfat\xe9",mm:"%d m~\xed\xf1\xfa~t\xe9s",h:"\xe1~\xf1 h\xf3~\xfar",hh:"%d h~\xf3\xfars",d:"\xe1 ~d\xe1\xfd",dd:"%d d~\xe1\xfds",M:"\xe1 ~m\xf3\xf1~th",MM:"%d m~\xf3\xf1t~hs",y:"\xe1 ~\xfd\xe9\xe1r",yy:"%d \xfd~\xe9\xe1rs"},dayOfMonthOrdinalParse:/\d{1,2}(th|st|nd|rd)/,ordinal:function(e){var a=e%10;return e+(1==~~(e%100/10)?"th":1==a?"st":2==a?"nd":3==a?"rd":"th")},week:{dow:1,doy:4}}),e.defineLocale("yo",{months:"S\u1eb9\u0301r\u1eb9\u0301_E\u0300re\u0300le\u0300_\u1eb8r\u1eb9\u0300na\u0300_I\u0300gbe\u0301_E\u0300bibi_O\u0300ku\u0300du_Ag\u1eb9mo_O\u0300gu\u0301n_Owewe_\u1ecc\u0300wa\u0300ra\u0300_Be\u0301lu\u0301_\u1ecc\u0300p\u1eb9\u0300\u0300".split("_"),monthsShort:"S\u1eb9\u0301r_E\u0300rl_\u1eb8rn_I\u0300gb_E\u0300bi_O\u0300ku\u0300_Ag\u1eb9_O\u0300gu\u0301_Owe_\u1ecc\u0300wa\u0300_Be\u0301l_\u1ecc\u0300p\u1eb9\u0300\u0300".split("_"),weekdays:"A\u0300i\u0300ku\u0301_Aje\u0301_I\u0300s\u1eb9\u0301gun_\u1eccj\u1ecd\u0301ru\u0301_\u1eccj\u1ecd\u0301b\u1ecd_\u1eb8ti\u0300_A\u0300ba\u0301m\u1eb9\u0301ta".split("_"),weekdaysShort:"A\u0300i\u0300k_Aje\u0301_I\u0300s\u1eb9\u0301_\u1eccjr_\u1eccjb_\u1eb8ti\u0300_A\u0300ba\u0301".split("_"),weekdaysMin:"A\u0300i\u0300_Aj_I\u0300s_\u1eccr_\u1eccb_\u1eb8t_A\u0300b".split("_"),longDateFormat:{LT:"h:mm A",LTS:"h:mm:ss A",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY h:mm A",LLLL:"dddd, D MMMM YYYY h:mm A"},calendar:{sameDay:"[O\u0300ni\u0300 ni] LT",nextDay:"[\u1ecc\u0300la ni] LT",nextWeek:"dddd [\u1eccs\u1eb9\u0300 to\u0301n'b\u1ecd] [ni] LT",lastDay:"[A\u0300na ni] LT",lastWeek:"dddd [\u1eccs\u1eb9\u0300 to\u0301l\u1ecd\u0301] [ni] LT",sameElse:"L"},relativeTime:{future:"ni\u0301 %s",past:"%s k\u1ecdja\u0301",s:"i\u0300s\u1eb9ju\u0301 aaya\u0301 die",ss:"aaya\u0301 %d",m:"i\u0300s\u1eb9ju\u0301 kan",mm:"i\u0300s\u1eb9ju\u0301 %d",h:"wa\u0301kati kan",hh:"wa\u0301kati %d",d:"\u1ecdj\u1ecd\u0301 kan",dd:"\u1ecdj\u1ecd\u0301 %d",M:"osu\u0300 kan",MM:"osu\u0300 %d",y:"\u1ecddu\u0301n kan",yy:"\u1ecddu\u0301n %d"},dayOfMonthOrdinalParse:/\u1ecdj\u1ecd\u0301\s\d{1,2}/,ordinal:"\u1ecdj\u1ecd\u0301 %d",week:{dow:1,doy:4}}),e.defineLocale("zh-cn",{months:"\u4e00\u6708_\u4e8c\u6708_\u4e09\u6708_\u56db\u6708_\u4e94\u6708_\u516d\u6708_\u4e03\u6708_\u516b\u6708_\u4e5d\u6708_\u5341\u6708_\u5341\u4e00\u6708_\u5341\u4e8c\u6708".split("_"),monthsShort:"1\u6708_2\u6708_3\u6708_4\u6708_5\u6708_6\u6708_7\u6708_8\u6708_9\u6708_10\u6708_11\u6708_12\u6708".split("_"),weekdays:"\u661f\u671f\u65e5_\u661f\u671f\u4e00_\u661f\u671f\u4e8c_\u661f\u671f\u4e09_\u661f\u671f\u56db_\u661f\u671f\u4e94_\u661f\u671f\u516d".split("_"),weekdaysShort:"\u5468\u65e5_\u5468\u4e00_\u5468\u4e8c_\u5468\u4e09_\u5468\u56db_\u5468\u4e94_\u5468\u516d".split("_"),weekdaysMin:"\u65e5_\u4e00_\u4e8c_\u4e09_\u56db_\u4e94_\u516d".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"YYYY/MM/DD",LL:"YYYY\u5e74M\u6708D\u65e5",LLL:"YYYY\u5e74M\u6708D\u65e5Ah\u70b9mm\u5206",LLLL:"YYYY\u5e74M\u6708D\u65e5ddddAh\u70b9mm\u5206",l:"YYYY/M/D",ll:"YYYY\u5e74M\u6708D\u65e5",lll:"YYYY\u5e74M\u6708D\u65e5 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\ No newline at end of file
diff --git a/backend/node_modules/moment/min/locales.min.js.map b/backend/node_modules/moment/min/locales.min.js.map
new file mode 100644
index 0000000..9f506f7
--- /dev/null
+++ b/backend/node_modules/moment/min/locales.min.js.map
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\ No newline at end of file
diff --git a/backend/node_modules/moment/min/moment-with-locales.js b/backend/node_modules/moment/min/moment-with-locales.js
new file mode 100644
index 0000000..b2af46d
--- /dev/null
+++ b/backend/node_modules/moment/min/moment-with-locales.js
@@ -0,0 +1,18472 @@
+;(function (global, factory) {
+    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+    typeof define === 'function' && define.amd ? define(factory) :
+    global.moment = factory()
+}(this, (function () { 'use strict';
+
+    var hookCallback;
+
+    function hooks() {
+        return hookCallback.apply(null, arguments);
+    }
+
+    // This is done to register the method called with moment()
+    // without creating circular dependencies.
+    function setHookCallback(callback) {
+        hookCallback = callback;
+    }
+
+    function isArray(input) {
+        return (
+            input instanceof Array ||
+            Object.prototype.toString.call(input) === '[object Array]'
+        );
+    }
+
+    function isObject(input) {
+        // IE8 will treat undefined and null as object if it wasn't for
+        // input != null
+        return (
+            input != null &&
+            Object.prototype.toString.call(input) === '[object Object]'
+        );
+    }
+
+    function hasOwnProp(a, b) {
+        return Object.prototype.hasOwnProperty.call(a, b);
+    }
+
+    function isObjectEmpty(obj) {
+        if (Object.getOwnPropertyNames) {
+            return Object.getOwnPropertyNames(obj).length === 0;
+        } else {
+            var k;
+            for (k in obj) {
+                if (hasOwnProp(obj, k)) {
+                    return false;
+                }
+            }
+            return true;
+        }
+    }
+
+    function isUndefined(input) {
+        return input === void 0;
+    }
+
+    function isNumber(input) {
+        return (
+            typeof input === 'number' ||
+            Object.prototype.toString.call(input) === '[object Number]'
+        );
+    }
+
+    function isDate(input) {
+        return (
+            input instanceof Date ||
+            Object.prototype.toString.call(input) === '[object Date]'
+        );
+    }
+
+    function map(arr, fn) {
+        var res = [],
+            i,
+            arrLen = arr.length;
+        for (i = 0; i < arrLen; ++i) {
+            res.push(fn(arr[i], i));
+        }
+        return res;
+    }
+
+    function extend(a, b) {
+        for (var i in b) {
+            if (hasOwnProp(b, i)) {
+                a[i] = b[i];
+            }
+        }
+
+        if (hasOwnProp(b, 'toString')) {
+            a.toString = b.toString;
+        }
+
+        if (hasOwnProp(b, 'valueOf')) {
+            a.valueOf = b.valueOf;
+        }
+
+        return a;
+    }
+
+    function createUTC(input, format, locale, strict) {
+        return createLocalOrUTC(input, format, locale, strict, true).utc();
+    }
+
+    function defaultParsingFlags() {
+        // We need to deep clone this object.
+        return {
+            empty: false,
+            unusedTokens: [],
+            unusedInput: [],
+            overflow: -2,
+            charsLeftOver: 0,
+            nullInput: false,
+            invalidEra: null,
+            invalidMonth: null,
+            invalidFormat: false,
+            userInvalidated: false,
+            iso: false,
+            parsedDateParts: [],
+            era: null,
+            meridiem: null,
+            rfc2822: false,
+            weekdayMismatch: false,
+        };
+    }
+
+    function getParsingFlags(m) {
+        if (m._pf == null) {
+            m._pf = defaultParsingFlags();
+        }
+        return m._pf;
+    }
+
+    var some;
+    if (Array.prototype.some) {
+        some = Array.prototype.some;
+    } else {
+        some = function (fun) {
+            var t = Object(this),
+                len = t.length >>> 0,
+                i;
+
+            for (i = 0; i < len; i++) {
+                if (i in t && fun.call(this, t[i], i, t)) {
+                    return true;
+                }
+            }
+
+            return false;
+        };
+    }
+
+    function isValid(m) {
+        var flags = null,
+            parsedParts = false,
+            isNowValid = m._d && !isNaN(m._d.getTime());
+        if (isNowValid) {
+            flags = getParsingFlags(m);
+            parsedParts = some.call(flags.parsedDateParts, function (i) {
+                return i != null;
+            });
+            isNowValid =
+                flags.overflow < 0 &&
+                !flags.empty &&
+                !flags.invalidEra &&
+                !flags.invalidMonth &&
+                !flags.invalidWeekday &&
+                !flags.weekdayMismatch &&
+                !flags.nullInput &&
+                !flags.invalidFormat &&
+                !flags.userInvalidated &&
+                (!flags.meridiem || (flags.meridiem && parsedParts));
+            if (m._strict) {
+                isNowValid =
+                    isNowValid &&
+                    flags.charsLeftOver === 0 &&
+                    flags.unusedTokens.length === 0 &&
+                    flags.bigHour === undefined;
+            }
+        }
+        if (Object.isFrozen == null || !Object.isFrozen(m)) {
+            m._isValid = isNowValid;
+        } else {
+            return isNowValid;
+        }
+        return m._isValid;
+    }
+
+    function createInvalid(flags) {
+        var m = createUTC(NaN);
+        if (flags != null) {
+            extend(getParsingFlags(m), flags);
+        } else {
+            getParsingFlags(m).userInvalidated = true;
+        }
+
+        return m;
+    }
+
+    // Plugins that add properties should also add the key here (null value),
+    // so we can properly clone ourselves.
+    var momentProperties = (hooks.momentProperties = []),
+        updateInProgress = false;
+
+    function copyConfig(to, from) {
+        var i,
+            prop,
+            val,
+            momentPropertiesLen = momentProperties.length;
+
+        if (!isUndefined(from._isAMomentObject)) {
+            to._isAMomentObject = from._isAMomentObject;
+        }
+        if (!isUndefined(from._i)) {
+            to._i = from._i;
+        }
+        if (!isUndefined(from._f)) {
+            to._f = from._f;
+        }
+        if (!isUndefined(from._l)) {
+            to._l = from._l;
+        }
+        if (!isUndefined(from._strict)) {
+            to._strict = from._strict;
+        }
+        if (!isUndefined(from._tzm)) {
+            to._tzm = from._tzm;
+        }
+        if (!isUndefined(from._isUTC)) {
+            to._isUTC = from._isUTC;
+        }
+        if (!isUndefined(from._offset)) {
+            to._offset = from._offset;
+        }
+        if (!isUndefined(from._pf)) {
+            to._pf = getParsingFlags(from);
+        }
+        if (!isUndefined(from._locale)) {
+            to._locale = from._locale;
+        }
+
+        if (momentPropertiesLen > 0) {
+            for (i = 0; i < momentPropertiesLen; i++) {
+                prop = momentProperties[i];
+                val = from[prop];
+                if (!isUndefined(val)) {
+                    to[prop] = val;
+                }
+            }
+        }
+
+        return to;
+    }
+
+    // Moment prototype object
+    function Moment(config) {
+        copyConfig(this, config);
+        this._d = new Date(config._d != null ? config._d.getTime() : NaN);
+        if (!this.isValid()) {
+            this._d = new Date(NaN);
+        }
+        // Prevent infinite loop in case updateOffset creates new moment
+        // objects.
+        if (updateInProgress === false) {
+            updateInProgress = true;
+            hooks.updateOffset(this);
+            updateInProgress = false;
+        }
+    }
+
+    function isMoment(obj) {
+        return (
+            obj instanceof Moment || (obj != null && obj._isAMomentObject != null)
+        );
+    }
+
+    function warn(msg) {
+        if (
+            hooks.suppressDeprecationWarnings === false &&
+            typeof console !== 'undefined' &&
+            console.warn
+        ) {
+            console.warn('Deprecation warning: ' + msg);
+        }
+    }
+
+    function deprecate(msg, fn) {
+        var firstTime = true;
+
+        return extend(function () {
+            if (hooks.deprecationHandler != null) {
+                hooks.deprecationHandler(null, msg);
+            }
+            if (firstTime) {
+                var args = [],
+                    arg,
+                    i,
+                    key,
+                    argLen = arguments.length;
+                for (i = 0; i < argLen; i++) {
+                    arg = '';
+                    if (typeof arguments[i] === 'object') {
+                        arg += '\n[' + i + '] ';
+                        for (key in arguments[0]) {
+                            if (hasOwnProp(arguments[0], key)) {
+                                arg += key + ': ' + arguments[0][key] + ', ';
+                            }
+                        }
+                        arg = arg.slice(0, -2); // Remove trailing comma and space
+                    } else {
+                        arg = arguments[i];
+                    }
+                    args.push(arg);
+                }
+                warn(
+                    msg +
+                        '\nArguments: ' +
+                        Array.prototype.slice.call(args).join('') +
+                        '\n' +
+                        new Error().stack
+                );
+                firstTime = false;
+            }
+            return fn.apply(this, arguments);
+        }, fn);
+    }
+
+    var deprecations = {};
+
+    function deprecateSimple(name, msg) {
+        if (hooks.deprecationHandler != null) {
+            hooks.deprecationHandler(name, msg);
+        }
+        if (!deprecations[name]) {
+            warn(msg);
+            deprecations[name] = true;
+        }
+    }
+
+    hooks.suppressDeprecationWarnings = false;
+    hooks.deprecationHandler = null;
+
+    function isFunction(input) {
+        return (
+            (typeof Function !== 'undefined' && input instanceof Function) ||
+            Object.prototype.toString.call(input) === '[object Function]'
+        );
+    }
+
+    function set(config) {
+        var prop, i;
+        for (i in config) {
+            if (hasOwnProp(config, i)) {
+                prop = config[i];
+                if (isFunction(prop)) {
+                    this[i] = prop;
+                } else {
+                    this['_' + i] = prop;
+                }
+            }
+        }
+        this._config = config;
+        // Lenient ordinal parsing accepts just a number in addition to
+        // number + (possibly) stuff coming from _dayOfMonthOrdinalParse.
+        // TODO: Remove "ordinalParse" fallback in next major release.
+        this._dayOfMonthOrdinalParseLenient = new RegExp(
+            (this._dayOfMonthOrdinalParse.source || this._ordinalParse.source) +
+                '|' +
+                /\d{1,2}/.source
+        );
+    }
+
+    function mergeConfigs(parentConfig, childConfig) {
+        var res = extend({}, parentConfig),
+            prop;
+        for (prop in childConfig) {
+            if (hasOwnProp(childConfig, prop)) {
+                if (isObject(parentConfig[prop]) && isObject(childConfig[prop])) {
+                    res[prop] = {};
+                    extend(res[prop], parentConfig[prop]);
+                    extend(res[prop], childConfig[prop]);
+                } else if (childConfig[prop] != null) {
+                    res[prop] = childConfig[prop];
+                } else {
+                    delete res[prop];
+                }
+            }
+        }
+        for (prop in parentConfig) {
+            if (
+                hasOwnProp(parentConfig, prop) &&
+                !hasOwnProp(childConfig, prop) &&
+                isObject(parentConfig[prop])
+            ) {
+                // make sure changes to properties don't modify parent config
+                res[prop] = extend({}, res[prop]);
+            }
+        }
+        return res;
+    }
+
+    function Locale(config) {
+        if (config != null) {
+            this.set(config);
+        }
+    }
+
+    var keys;
+
+    if (Object.keys) {
+        keys = Object.keys;
+    } else {
+        keys = function (obj) {
+            var i,
+                res = [];
+            for (i in obj) {
+                if (hasOwnProp(obj, i)) {
+                    res.push(i);
+                }
+            }
+            return res;
+        };
+    }
+
+    var defaultCalendar = {
+        sameDay: '[Today at] LT',
+        nextDay: '[Tomorrow at] LT',
+        nextWeek: 'dddd [at] LT',
+        lastDay: '[Yesterday at] LT',
+        lastWeek: '[Last] dddd [at] LT',
+        sameElse: 'L',
+    };
+
+    function calendar(key, mom, now) {
+        var output = this._calendar[key] || this._calendar['sameElse'];
+        return isFunction(output) ? output.call(mom, now) : output;
+    }
+
+    function zeroFill(number, targetLength, forceSign) {
+        var absNumber = '' + Math.abs(number),
+            zerosToFill = targetLength - absNumber.length,
+            sign = number >= 0;
+        return (
+            (sign ? (forceSign ? '+' : '') : '-') +
+            Math.pow(10, Math.max(0, zerosToFill)).toString().substr(1) +
+            absNumber
+        );
+    }
+
+    var formattingTokens =
+            /(\[[^\[]*\])|(\\)?([Hh]mm(ss)?|Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Qo?|N{1,5}|YYYYYY|YYYYY|YYYY|YY|y{2,4}|yo?|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|kk?|mm?|ss?|S{1,9}|x|X|zz?|ZZ?|.)/g,
+        localFormattingTokens = /(\[[^\[]*\])|(\\)?(LTS|LT|LL?L?L?|l{1,4})/g,
+        formatFunctions = {},
+        formatTokenFunctions = {};
+
+    // token:    'M'
+    // padded:   ['MM', 2]
+    // ordinal:  'Mo'
+    // callback: function () { this.month() + 1 }
+    function addFormatToken(token, padded, ordinal, callback) {
+        var func = callback;
+        if (typeof callback === 'string') {
+            func = function () {
+                return this[callback]();
+            };
+        }
+        if (token) {
+            formatTokenFunctions[token] = func;
+        }
+        if (padded) {
+            formatTokenFunctions[padded[0]] = function () {
+                return zeroFill(func.apply(this, arguments), padded[1], padded[2]);
+            };
+        }
+        if (ordinal) {
+            formatTokenFunctions[ordinal] = function () {
+                return this.localeData().ordinal(
+                    func.apply(this, arguments),
+                    token
+                );
+            };
+        }
+    }
+
+    function removeFormattingTokens(input) {
+        if (input.match(/\[[\s\S]/)) {
+            return input.replace(/^\[|\]$/g, '');
+        }
+        return input.replace(/\\/g, '');
+    }
+
+    function makeFormatFunction(format) {
+        var array = format.match(formattingTokens),
+            i,
+            length;
+
+        for (i = 0, length = array.length; i < length; i++) {
+            if (formatTokenFunctions[array[i]]) {
+                array[i] = formatTokenFunctions[array[i]];
+            } else {
+                array[i] = removeFormattingTokens(array[i]);
+            }
+        }
+
+        return function (mom) {
+            var output = '',
+                i;
+            for (i = 0; i < length; i++) {
+                output += isFunction(array[i])
+                    ? array[i].call(mom, format)
+                    : array[i];
+            }
+            return output;
+        };
+    }
+
+    // format date using native date object
+    function formatMoment(m, format) {
+        if (!m.isValid()) {
+            return m.localeData().invalidDate();
+        }
+
+        format = expandFormat(format, m.localeData());
+        formatFunctions[format] =
+            formatFunctions[format] || makeFormatFunction(format);
+
+        return formatFunctions[format](m);
+    }
+
+    function expandFormat(format, locale) {
+        var i = 5;
+
+        function replaceLongDateFormatTokens(input) {
+            return locale.longDateFormat(input) || input;
+        }
+
+        localFormattingTokens.lastIndex = 0;
+        while (i >= 0 && localFormattingTokens.test(format)) {
+            format = format.replace(
+                localFormattingTokens,
+                replaceLongDateFormatTokens
+            );
+            localFormattingTokens.lastIndex = 0;
+            i -= 1;
+        }
+
+        return format;
+    }
+
+    var defaultLongDateFormat = {
+        LTS: 'h:mm:ss A',
+        LT: 'h:mm A',
+        L: 'MM/DD/YYYY',
+        LL: 'MMMM D, YYYY',
+        LLL: 'MMMM D, YYYY h:mm A',
+        LLLL: 'dddd, MMMM D, YYYY h:mm A',
+    };
+
+    function longDateFormat(key) {
+        var format = this._longDateFormat[key],
+            formatUpper = this._longDateFormat[key.toUpperCase()];
+
+        if (format || !formatUpper) {
+            return format;
+        }
+
+        this._longDateFormat[key] = formatUpper
+            .match(formattingTokens)
+            .map(function (tok) {
+                if (
+                    tok === 'MMMM' ||
+                    tok === 'MM' ||
+                    tok === 'DD' ||
+                    tok === 'dddd'
+                ) {
+                    return tok.slice(1);
+                }
+                return tok;
+            })
+            .join('');
+
+        return this._longDateFormat[key];
+    }
+
+    var defaultInvalidDate = 'Invalid date';
+
+    function invalidDate() {
+        return this._invalidDate;
+    }
+
+    var defaultOrdinal = '%d',
+        defaultDayOfMonthOrdinalParse = /\d{1,2}/;
+
+    function ordinal(number) {
+        return this._ordinal.replace('%d', number);
+    }
+
+    var defaultRelativeTime = {
+        future: 'in %s',
+        past: '%s ago',
+        s: 'a few seconds',
+        ss: '%d seconds',
+        m: 'a minute',
+        mm: '%d minutes',
+        h: 'an hour',
+        hh: '%d hours',
+        d: 'a day',
+        dd: '%d days',
+        w: 'a week',
+        ww: '%d weeks',
+        M: 'a month',
+        MM: '%d months',
+        y: 'a year',
+        yy: '%d years',
+    };
+
+    function relativeTime(number, withoutSuffix, string, isFuture) {
+        var output = this._relativeTime[string];
+        return isFunction(output)
+            ? output(number, withoutSuffix, string, isFuture)
+            : output.replace(/%d/i, number);
+    }
+
+    function pastFuture(diff, output) {
+        var format = this._relativeTime[diff > 0 ? 'future' : 'past'];
+        return isFunction(format) ? format(output) : format.replace(/%s/i, output);
+    }
+
+    var aliases = {
+        D: 'date',
+        dates: 'date',
+        date: 'date',
+        d: 'day',
+        days: 'day',
+        day: 'day',
+        e: 'weekday',
+        weekdays: 'weekday',
+        weekday: 'weekday',
+        E: 'isoWeekday',
+        isoweekdays: 'isoWeekday',
+        isoweekday: 'isoWeekday',
+        DDD: 'dayOfYear',
+        dayofyears: 'dayOfYear',
+        dayofyear: 'dayOfYear',
+        h: 'hour',
+        hours: 'hour',
+        hour: 'hour',
+        ms: 'millisecond',
+        milliseconds: 'millisecond',
+        millisecond: 'millisecond',
+        m: 'minute',
+        minutes: 'minute',
+        minute: 'minute',
+        M: 'month',
+        months: 'month',
+        month: 'month',
+        Q: 'quarter',
+        quarters: 'quarter',
+        quarter: 'quarter',
+        s: 'second',
+        seconds: 'second',
+        second: 'second',
+        gg: 'weekYear',
+        weekyears: 'weekYear',
+        weekyear: 'weekYear',
+        GG: 'isoWeekYear',
+        isoweekyears: 'isoWeekYear',
+        isoweekyear: 'isoWeekYear',
+        w: 'week',
+        weeks: 'week',
+        week: 'week',
+        W: 'isoWeek',
+        isoweeks: 'isoWeek',
+        isoweek: 'isoWeek',
+        y: 'year',
+        years: 'year',
+        year: 'year',
+    };
+
+    function normalizeUnits(units) {
+        return typeof units === 'string'
+            ? aliases[units] || aliases[units.toLowerCase()]
+            : undefined;
+    }
+
+    function normalizeObjectUnits(inputObject) {
+        var normalizedInput = {},
+            normalizedProp,
+            prop;
+
+        for (prop in inputObject) {
+            if (hasOwnProp(inputObject, prop)) {
+                normalizedProp = normalizeUnits(prop);
+                if (normalizedProp) {
+                    normalizedInput[normalizedProp] = inputObject[prop];
+                }
+            }
+        }
+
+        return normalizedInput;
+    }
+
+    var priorities = {
+        date: 9,
+        day: 11,
+        weekday: 11,
+        isoWeekday: 11,
+        dayOfYear: 4,
+        hour: 13,
+        millisecond: 16,
+        minute: 14,
+        month: 8,
+        quarter: 7,
+        second: 15,
+        weekYear: 1,
+        isoWeekYear: 1,
+        week: 5,
+        isoWeek: 5,
+        year: 1,
+    };
+
+    function getPrioritizedUnits(unitsObj) {
+        var units = [],
+            u;
+        for (u in unitsObj) {
+            if (hasOwnProp(unitsObj, u)) {
+                units.push({ unit: u, priority: priorities[u] });
+            }
+        }
+        units.sort(function (a, b) {
+            return a.priority - b.priority;
+        });
+        return units;
+    }
+
+    var match1 = /\d/, //       0 - 9
+        match2 = /\d\d/, //      00 - 99
+        match3 = /\d{3}/, //     000 - 999
+        match4 = /\d{4}/, //    0000 - 9999
+        match6 = /[+-]?\d{6}/, // -999999 - 999999
+        match1to2 = /\d\d?/, //       0 - 99
+        match3to4 = /\d\d\d\d?/, //     999 - 9999
+        match5to6 = /\d\d\d\d\d\d?/, //   99999 - 999999
+        match1to3 = /\d{1,3}/, //       0 - 999
+        match1to4 = /\d{1,4}/, //       0 - 9999
+        match1to6 = /[+-]?\d{1,6}/, // -999999 - 999999
+        matchUnsigned = /\d+/, //       0 - inf
+        matchSigned = /[+-]?\d+/, //    -inf - inf
+        matchOffset = /Z|[+-]\d\d:?\d\d/gi, // +00:00 -00:00 +0000 -0000 or Z
+        matchShortOffset = /Z|[+-]\d\d(?::?\d\d)?/gi, // +00 -00 +00:00 -00:00 +0000 -0000 or Z
+        matchTimestamp = /[+-]?\d+(\.\d{1,3})?/, // 123456789 123456789.123
+        // any word (or two) characters or numbers including two/three word month in arabic.
+        // includes scottish gaelic two word and hyphenated months
+        matchWord =
+            /[0-9]{0,256}['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFF07\uFF10-\uFFEF]{1,256}|[\u0600-\u06FF\/]{1,256}(\s*?[\u0600-\u06FF]{1,256}){1,2}/i,
+        match1to2NoLeadingZero = /^[1-9]\d?/, //         1-99
+        match1to2HasZero = /^([1-9]\d|\d)/, //           0-99
+        regexes;
+
+    regexes = {};
+
+    function addRegexToken(token, regex, strictRegex) {
+        regexes[token] = isFunction(regex)
+            ? regex
+            : function (isStrict, localeData) {
+                  return isStrict && strictRegex ? strictRegex : regex;
+              };
+    }
+
+    function getParseRegexForToken(token, config) {
+        if (!hasOwnProp(regexes, token)) {
+            return new RegExp(unescapeFormat(token));
+        }
+
+        return regexes[token](config._strict, config._locale);
+    }
+
+    // Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript
+    function unescapeFormat(s) {
+        return regexEscape(
+            s
+                .replace('\\', '')
+                .replace(
+                    /\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g,
+                    function (matched, p1, p2, p3, p4) {
+                        return p1 || p2 || p3 || p4;
+                    }
+                )
+        );
+    }
+
+    function regexEscape(s) {
+        return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
+    }
+
+    function absFloor(number) {
+        if (number < 0) {
+            // -0 -> 0
+            return Math.ceil(number) || 0;
+        } else {
+            return Math.floor(number);
+        }
+    }
+
+    function toInt(argumentForCoercion) {
+        var coercedNumber = +argumentForCoercion,
+            value = 0;
+
+        if (coercedNumber !== 0 && isFinite(coercedNumber)) {
+            value = absFloor(coercedNumber);
+        }
+
+        return value;
+    }
+
+    var tokens = {};
+
+    function addParseToken(token, callback) {
+        var i,
+            func = callback,
+            tokenLen;
+        if (typeof token === 'string') {
+            token = [token];
+        }
+        if (isNumber(callback)) {
+            func = function (input, array) {
+                array[callback] = toInt(input);
+            };
+        }
+        tokenLen = token.length;
+        for (i = 0; i < tokenLen; i++) {
+            tokens[token[i]] = func;
+        }
+    }
+
+    function addWeekParseToken(token, callback) {
+        addParseToken(token, function (input, array, config, token) {
+            config._w = config._w || {};
+            callback(input, config._w, config, token);
+        });
+    }
+
+    function addTimeToArrayFromToken(token, input, config) {
+        if (input != null && hasOwnProp(tokens, token)) {
+            tokens[token](input, config._a, config, token);
+        }
+    }
+
+    function isLeapYear(year) {
+        return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
+    }
+
+    var YEAR = 0,
+        MONTH = 1,
+        DATE = 2,
+        HOUR = 3,
+        MINUTE = 4,
+        SECOND = 5,
+        MILLISECOND = 6,
+        WEEK = 7,
+        WEEKDAY = 8;
+
+    // FORMATTING
+
+    addFormatToken('Y', 0, 0, function () {
+        var y = this.year();
+        return y <= 9999 ? zeroFill(y, 4) : '+' + y;
+    });
+
+    addFormatToken(0, ['YY', 2], 0, function () {
+        return this.year() % 100;
+    });
+
+    addFormatToken(0, ['YYYY', 4], 0, 'year');
+    addFormatToken(0, ['YYYYY', 5], 0, 'year');
+    addFormatToken(0, ['YYYYYY', 6, true], 0, 'year');
+
+    // PARSING
+
+    addRegexToken('Y', matchSigned);
+    addRegexToken('YY', match1to2, match2);
+    addRegexToken('YYYY', match1to4, match4);
+    addRegexToken('YYYYY', match1to6, match6);
+    addRegexToken('YYYYYY', match1to6, match6);
+
+    addParseToken(['YYYYY', 'YYYYYY'], YEAR);
+    addParseToken('YYYY', function (input, array) {
+        array[YEAR] =
+            input.length === 2 ? hooks.parseTwoDigitYear(input) : toInt(input);
+    });
+    addParseToken('YY', function (input, array) {
+        array[YEAR] = hooks.parseTwoDigitYear(input);
+    });
+    addParseToken('Y', function (input, array) {
+        array[YEAR] = parseInt(input, 10);
+    });
+
+    // HELPERS
+
+    function daysInYear(year) {
+        return isLeapYear(year) ? 366 : 365;
+    }
+
+    // HOOKS
+
+    hooks.parseTwoDigitYear = function (input) {
+        return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
+    };
+
+    // MOMENTS
+
+    var getSetYear = makeGetSet('FullYear', true);
+
+    function getIsLeapYear() {
+        return isLeapYear(this.year());
+    }
+
+    function makeGetSet(unit, keepTime) {
+        return function (value) {
+            if (value != null) {
+                set$1(this, unit, value);
+                hooks.updateOffset(this, keepTime);
+                return this;
+            } else {
+                return get(this, unit);
+            }
+        };
+    }
+
+    function get(mom, unit) {
+        if (!mom.isValid()) {
+            return NaN;
+        }
+
+        var d = mom._d,
+            isUTC = mom._isUTC;
+
+        switch (unit) {
+            case 'Milliseconds':
+                return isUTC ? d.getUTCMilliseconds() : d.getMilliseconds();
+            case 'Seconds':
+                return isUTC ? d.getUTCSeconds() : d.getSeconds();
+            case 'Minutes':
+                return isUTC ? d.getUTCMinutes() : d.getMinutes();
+            case 'Hours':
+                return isUTC ? d.getUTCHours() : d.getHours();
+            case 'Date':
+                return isUTC ? d.getUTCDate() : d.getDate();
+            case 'Day':
+                return isUTC ? d.getUTCDay() : d.getDay();
+            case 'Month':
+                return isUTC ? d.getUTCMonth() : d.getMonth();
+            case 'FullYear':
+                return isUTC ? d.getUTCFullYear() : d.getFullYear();
+            default:
+                return NaN; // Just in case
+        }
+    }
+
+    function set$1(mom, unit, value) {
+        var d, isUTC, year, month, date;
+
+        if (!mom.isValid() || isNaN(value)) {
+            return;
+        }
+
+        d = mom._d;
+        isUTC = mom._isUTC;
+
+        switch (unit) {
+            case 'Milliseconds':
+                return void (isUTC
+                    ? d.setUTCMilliseconds(value)
+                    : d.setMilliseconds(value));
+            case 'Seconds':
+                return void (isUTC ? d.setUTCSeconds(value) : d.setSeconds(value));
+            case 'Minutes':
+                return void (isUTC ? d.setUTCMinutes(value) : d.setMinutes(value));
+            case 'Hours':
+                return void (isUTC ? d.setUTCHours(value) : d.setHours(value));
+            case 'Date':
+                return void (isUTC ? d.setUTCDate(value) : d.setDate(value));
+            // case 'Day': // Not real
+            //    return void (isUTC ? d.setUTCDay(value) : d.setDay(value));
+            // case 'Month': // Not used because we need to pass two variables
+            //     return void (isUTC ? d.setUTCMonth(value) : d.setMonth(value));
+            case 'FullYear':
+                break; // See below ...
+            default:
+                return; // Just in case
+        }
+
+        year = value;
+        month = mom.month();
+        date = mom.date();
+        date = date === 29 && month === 1 && !isLeapYear(year) ? 28 : date;
+        void (isUTC
+            ? d.setUTCFullYear(year, month, date)
+            : d.setFullYear(year, month, date));
+    }
+
+    // MOMENTS
+
+    function stringGet(units) {
+        units = normalizeUnits(units);
+        if (isFunction(this[units])) {
+            return this[units]();
+        }
+        return this;
+    }
+
+    function stringSet(units, value) {
+        if (typeof units === 'object') {
+            units = normalizeObjectUnits(units);
+            var prioritized = getPrioritizedUnits(units),
+                i,
+                prioritizedLen = prioritized.length;
+            for (i = 0; i < prioritizedLen; i++) {
+                this[prioritized[i].unit](units[prioritized[i].unit]);
+            }
+        } else {
+            units = normalizeUnits(units);
+            if (isFunction(this[units])) {
+                return this[units](value);
+            }
+        }
+        return this;
+    }
+
+    function mod(n, x) {
+        return ((n % x) + x) % x;
+    }
+
+    var indexOf;
+
+    if (Array.prototype.indexOf) {
+        indexOf = Array.prototype.indexOf;
+    } else {
+        indexOf = function (o) {
+            // I know
+            var i;
+            for (i = 0; i < this.length; ++i) {
+                if (this[i] === o) {
+                    return i;
+                }
+            }
+            return -1;
+        };
+    }
+
+    function daysInMonth(year, month) {
+        if (isNaN(year) || isNaN(month)) {
+            return NaN;
+        }
+        var modMonth = mod(month, 12);
+        year += (month - modMonth) / 12;
+        return modMonth === 1
+            ? isLeapYear(year)
+                ? 29
+                : 28
+            : 31 - ((modMonth % 7) % 2);
+    }
+
+    // FORMATTING
+
+    addFormatToken('M', ['MM', 2], 'Mo', function () {
+        return this.month() + 1;
+    });
+
+    addFormatToken('MMM', 0, 0, function (format) {
+        return this.localeData().monthsShort(this, format);
+    });
+
+    addFormatToken('MMMM', 0, 0, function (format) {
+        return this.localeData().months(this, format);
+    });
+
+    // PARSING
+
+    addRegexToken('M', match1to2, match1to2NoLeadingZero);
+    addRegexToken('MM', match1to2, match2);
+    addRegexToken('MMM', function (isStrict, locale) {
+        return locale.monthsShortRegex(isStrict);
+    });
+    addRegexToken('MMMM', function (isStrict, locale) {
+        return locale.monthsRegex(isStrict);
+    });
+
+    addParseToken(['M', 'MM'], function (input, array) {
+        array[MONTH] = toInt(input) - 1;
+    });
+
+    addParseToken(['MMM', 'MMMM'], function (input, array, config, token) {
+        var month = config._locale.monthsParse(input, token, config._strict);
+        // if we didn't find a month name, mark the date as invalid.
+        if (month != null) {
+            array[MONTH] = month;
+        } else {
+            getParsingFlags(config).invalidMonth = input;
+        }
+    });
+
+    // LOCALES
+
+    var defaultLocaleMonths =
+            'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+                '_'
+            ),
+        defaultLocaleMonthsShort =
+            'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        MONTHS_IN_FORMAT = /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?/,
+        defaultMonthsShortRegex = matchWord,
+        defaultMonthsRegex = matchWord;
+
+    function localeMonths(m, format) {
+        if (!m) {
+            return isArray(this._months)
+                ? this._months
+                : this._months['standalone'];
+        }
+        return isArray(this._months)
+            ? this._months[m.month()]
+            : this._months[
+                  (this._months.isFormat || MONTHS_IN_FORMAT).test(format)
+                      ? 'format'
+                      : 'standalone'
+              ][m.month()];
+    }
+
+    function localeMonthsShort(m, format) {
+        if (!m) {
+            return isArray(this._monthsShort)
+                ? this._monthsShort
+                : this._monthsShort['standalone'];
+        }
+        return isArray(this._monthsShort)
+            ? this._monthsShort[m.month()]
+            : this._monthsShort[
+                  MONTHS_IN_FORMAT.test(format) ? 'format' : 'standalone'
+              ][m.month()];
+    }
+
+    function handleStrictParse(monthName, format, strict) {
+        var i,
+            ii,
+            mom,
+            llc = monthName.toLocaleLowerCase();
+        if (!this._monthsParse) {
+            // this is not used
+            this._monthsParse = [];
+            this._longMonthsParse = [];
+            this._shortMonthsParse = [];
+            for (i = 0; i < 12; ++i) {
+                mom = createUTC([2000, i]);
+                this._shortMonthsParse[i] = this.monthsShort(
+                    mom,
+                    ''
+                ).toLocaleLowerCase();
+                this._longMonthsParse[i] = this.months(mom, '').toLocaleLowerCase();
+            }
+        }
+
+        if (strict) {
+            if (format === 'MMM') {
+                ii = indexOf.call(this._shortMonthsParse, llc);
+                return ii !== -1 ? ii : null;
+            } else {
+                ii = indexOf.call(this._longMonthsParse, llc);
+                return ii !== -1 ? ii : null;
+            }
+        } else {
+            if (format === 'MMM') {
+                ii = indexOf.call(this._shortMonthsParse, llc);
+                if (ii !== -1) {
+                    return ii;
+                }
+                ii = indexOf.call(this._longMonthsParse, llc);
+                return ii !== -1 ? ii : null;
+            } else {
+                ii = indexOf.call(this._longMonthsParse, llc);
+                if (ii !== -1) {
+                    return ii;
+                }
+                ii = indexOf.call(this._shortMonthsParse, llc);
+                return ii !== -1 ? ii : null;
+            }
+        }
+    }
+
+    function localeMonthsParse(monthName, format, strict) {
+        var i, mom, regex;
+
+        if (this._monthsParseExact) {
+            return handleStrictParse.call(this, monthName, format, strict);
+        }
+
+        if (!this._monthsParse) {
+            this._monthsParse = [];
+            this._longMonthsParse = [];
+            this._shortMonthsParse = [];
+        }
+
+        // TODO: add sorting
+        // Sorting makes sure if one month (or abbr) is a prefix of another
+        // see sorting in computeMonthsParse
+        for (i = 0; i < 12; i++) {
+            // make the regex if we don't have it already
+            mom = createUTC([2000, i]);
+            if (strict && !this._longMonthsParse[i]) {
+                this._longMonthsParse[i] = new RegExp(
+                    '^' + this.months(mom, '').replace('.', '') + '$',
+                    'i'
+                );
+                this._shortMonthsParse[i] = new RegExp(
+                    '^' + this.monthsShort(mom, '').replace('.', '') + '$',
+                    'i'
+                );
+            }
+            if (!strict && !this._monthsParse[i]) {
+                regex =
+                    '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');
+                this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');
+            }
+            // test the regex
+            if (
+                strict &&
+                format === 'MMMM' &&
+                this._longMonthsParse[i].test(monthName)
+            ) {
+                return i;
+            } else if (
+                strict &&
+                format === 'MMM' &&
+                this._shortMonthsParse[i].test(monthName)
+            ) {
+                return i;
+            } else if (!strict && this._monthsParse[i].test(monthName)) {
+                return i;
+            }
+        }
+    }
+
+    // MOMENTS
+
+    function setMonth(mom, value) {
+        if (!mom.isValid()) {
+            // No op
+            return mom;
+        }
+
+        if (typeof value === 'string') {
+            if (/^\d+$/.test(value)) {
+                value = toInt(value);
+            } else {
+                value = mom.localeData().monthsParse(value);
+                // TODO: Another silent failure?
+                if (!isNumber(value)) {
+                    return mom;
+                }
+            }
+        }
+
+        var month = value,
+            date = mom.date();
+
+        date = date < 29 ? date : Math.min(date, daysInMonth(mom.year(), month));
+        void (mom._isUTC
+            ? mom._d.setUTCMonth(month, date)
+            : mom._d.setMonth(month, date));
+        return mom;
+    }
+
+    function getSetMonth(value) {
+        if (value != null) {
+            setMonth(this, value);
+            hooks.updateOffset(this, true);
+            return this;
+        } else {
+            return get(this, 'Month');
+        }
+    }
+
+    function getDaysInMonth() {
+        return daysInMonth(this.year(), this.month());
+    }
+
+    function monthsShortRegex(isStrict) {
+        if (this._monthsParseExact) {
+            if (!hasOwnProp(this, '_monthsRegex')) {
+                computeMonthsParse.call(this);
+            }
+            if (isStrict) {
+                return this._monthsShortStrictRegex;
+            } else {
+                return this._monthsShortRegex;
+            }
+        } else {
+            if (!hasOwnProp(this, '_monthsShortRegex')) {
+                this._monthsShortRegex = defaultMonthsShortRegex;
+            }
+            return this._monthsShortStrictRegex && isStrict
+                ? this._monthsShortStrictRegex
+                : this._monthsShortRegex;
+        }
+    }
+
+    function monthsRegex(isStrict) {
+        if (this._monthsParseExact) {
+            if (!hasOwnProp(this, '_monthsRegex')) {
+                computeMonthsParse.call(this);
+            }
+            if (isStrict) {
+                return this._monthsStrictRegex;
+            } else {
+                return this._monthsRegex;
+            }
+        } else {
+            if (!hasOwnProp(this, '_monthsRegex')) {
+                this._monthsRegex = defaultMonthsRegex;
+            }
+            return this._monthsStrictRegex && isStrict
+                ? this._monthsStrictRegex
+                : this._monthsRegex;
+        }
+    }
+
+    function computeMonthsParse() {
+        function cmpLenRev(a, b) {
+            return b.length - a.length;
+        }
+
+        var shortPieces = [],
+            longPieces = [],
+            mixedPieces = [],
+            i,
+            mom,
+            shortP,
+            longP;
+        for (i = 0; i < 12; i++) {
+            // make the regex if we don't have it already
+            mom = createUTC([2000, i]);
+            shortP = regexEscape(this.monthsShort(mom, ''));
+            longP = regexEscape(this.months(mom, ''));
+            shortPieces.push(shortP);
+            longPieces.push(longP);
+            mixedPieces.push(longP);
+            mixedPieces.push(shortP);
+        }
+        // Sorting makes sure if one month (or abbr) is a prefix of another it
+        // will match the longer piece.
+        shortPieces.sort(cmpLenRev);
+        longPieces.sort(cmpLenRev);
+        mixedPieces.sort(cmpLenRev);
+
+        this._monthsRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
+        this._monthsShortRegex = this._monthsRegex;
+        this._monthsStrictRegex = new RegExp(
+            '^(' + longPieces.join('|') + ')',
+            'i'
+        );
+        this._monthsShortStrictRegex = new RegExp(
+            '^(' + shortPieces.join('|') + ')',
+            'i'
+        );
+    }
+
+    function createDate(y, m, d, h, M, s, ms) {
+        // can't just apply() to create a date:
+        // https://stackoverflow.com/q/181348
+        var date;
+        // the date constructor remaps years 0-99 to 1900-1999
+        if (y < 100 && y >= 0) {
+            // preserve leap years using a full 400 year cycle, then reset
+            date = new Date(y + 400, m, d, h, M, s, ms);
+            if (isFinite(date.getFullYear())) {
+                date.setFullYear(y);
+            }
+        } else {
+            date = new Date(y, m, d, h, M, s, ms);
+        }
+
+        return date;
+    }
+
+    function createUTCDate(y) {
+        var date, args;
+        // the Date.UTC function remaps years 0-99 to 1900-1999
+        if (y < 100 && y >= 0) {
+            args = Array.prototype.slice.call(arguments);
+            // preserve leap years using a full 400 year cycle, then reset
+            args[0] = y + 400;
+            date = new Date(Date.UTC.apply(null, args));
+            if (isFinite(date.getUTCFullYear())) {
+                date.setUTCFullYear(y);
+            }
+        } else {
+            date = new Date(Date.UTC.apply(null, arguments));
+        }
+
+        return date;
+    }
+
+    // start-of-first-week - start-of-year
+    function firstWeekOffset(year, dow, doy) {
+        var // first-week day -- which january is always in the first week (4 for iso, 1 for other)
+            fwd = 7 + dow - doy,
+            // first-week day local weekday -- which local weekday is fwd
+            fwdlw = (7 + createUTCDate(year, 0, fwd).getUTCDay() - dow) % 7;
+
+        return -fwdlw + fwd - 1;
+    }
+
+    // https://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday
+    function dayOfYearFromWeeks(year, week, weekday, dow, doy) {
+        var localWeekday = (7 + weekday - dow) % 7,
+            weekOffset = firstWeekOffset(year, dow, doy),
+            dayOfYear = 1 + 7 * (week - 1) + localWeekday + weekOffset,
+            resYear,
+            resDayOfYear;
+
+        if (dayOfYear <= 0) {
+            resYear = year - 1;
+            resDayOfYear = daysInYear(resYear) + dayOfYear;
+        } else if (dayOfYear > daysInYear(year)) {
+            resYear = year + 1;
+            resDayOfYear = dayOfYear - daysInYear(year);
+        } else {
+            resYear = year;
+            resDayOfYear = dayOfYear;
+        }
+
+        return {
+            year: resYear,
+            dayOfYear: resDayOfYear,
+        };
+    }
+
+    function weekOfYear(mom, dow, doy) {
+        var weekOffset = firstWeekOffset(mom.year(), dow, doy),
+            week = Math.floor((mom.dayOfYear() - weekOffset - 1) / 7) + 1,
+            resWeek,
+            resYear;
+
+        if (week < 1) {
+            resYear = mom.year() - 1;
+            resWeek = week + weeksInYear(resYear, dow, doy);
+        } else if (week > weeksInYear(mom.year(), dow, doy)) {
+            resWeek = week - weeksInYear(mom.year(), dow, doy);
+            resYear = mom.year() + 1;
+        } else {
+            resYear = mom.year();
+            resWeek = week;
+        }
+
+        return {
+            week: resWeek,
+            year: resYear,
+        };
+    }
+
+    function weeksInYear(year, dow, doy) {
+        var weekOffset = firstWeekOffset(year, dow, doy),
+            weekOffsetNext = firstWeekOffset(year + 1, dow, doy);
+        return (daysInYear(year) - weekOffset + weekOffsetNext) / 7;
+    }
+
+    // FORMATTING
+
+    addFormatToken('w', ['ww', 2], 'wo', 'week');
+    addFormatToken('W', ['WW', 2], 'Wo', 'isoWeek');
+
+    // PARSING
+
+    addRegexToken('w', match1to2, match1to2NoLeadingZero);
+    addRegexToken('ww', match1to2, match2);
+    addRegexToken('W', match1to2, match1to2NoLeadingZero);
+    addRegexToken('WW', match1to2, match2);
+
+    addWeekParseToken(
+        ['w', 'ww', 'W', 'WW'],
+        function (input, week, config, token) {
+            week[token.substr(0, 1)] = toInt(input);
+        }
+    );
+
+    // HELPERS
+
+    // LOCALES
+
+    function localeWeek(mom) {
+        return weekOfYear(mom, this._week.dow, this._week.doy).week;
+    }
+
+    var defaultLocaleWeek = {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    };
+
+    function localeFirstDayOfWeek() {
+        return this._week.dow;
+    }
+
+    function localeFirstDayOfYear() {
+        return this._week.doy;
+    }
+
+    // MOMENTS
+
+    function getSetWeek(input) {
+        var week = this.localeData().week(this);
+        return input == null ? week : this.add((input - week) * 7, 'd');
+    }
+
+    function getSetISOWeek(input) {
+        var week = weekOfYear(this, 1, 4).week;
+        return input == null ? week : this.add((input - week) * 7, 'd');
+    }
+
+    // FORMATTING
+
+    addFormatToken('d', 0, 'do', 'day');
+
+    addFormatToken('dd', 0, 0, function (format) {
+        return this.localeData().weekdaysMin(this, format);
+    });
+
+    addFormatToken('ddd', 0, 0, function (format) {
+        return this.localeData().weekdaysShort(this, format);
+    });
+
+    addFormatToken('dddd', 0, 0, function (format) {
+        return this.localeData().weekdays(this, format);
+    });
+
+    addFormatToken('e', 0, 0, 'weekday');
+    addFormatToken('E', 0, 0, 'isoWeekday');
+
+    // PARSING
+
+    addRegexToken('d', match1to2);
+    addRegexToken('e', match1to2);
+    addRegexToken('E', match1to2);
+    addRegexToken('dd', function (isStrict, locale) {
+        return locale.weekdaysMinRegex(isStrict);
+    });
+    addRegexToken('ddd', function (isStrict, locale) {
+        return locale.weekdaysShortRegex(isStrict);
+    });
+    addRegexToken('dddd', function (isStrict, locale) {
+        return locale.weekdaysRegex(isStrict);
+    });
+
+    addWeekParseToken(['dd', 'ddd', 'dddd'], function (input, week, config, token) {
+        var weekday = config._locale.weekdaysParse(input, token, config._strict);
+        // if we didn't get a weekday name, mark the date as invalid
+        if (weekday != null) {
+            week.d = weekday;
+        } else {
+            getParsingFlags(config).invalidWeekday = input;
+        }
+    });
+
+    addWeekParseToken(['d', 'e', 'E'], function (input, week, config, token) {
+        week[token] = toInt(input);
+    });
+
+    // HELPERS
+
+    function parseWeekday(input, locale) {
+        if (typeof input !== 'string') {
+            return input;
+        }
+
+        if (!isNaN(input)) {
+            return parseInt(input, 10);
+        }
+
+        input = locale.weekdaysParse(input);
+        if (typeof input === 'number') {
+            return input;
+        }
+
+        return null;
+    }
+
+    function parseIsoWeekday(input, locale) {
+        if (typeof input === 'string') {
+            return locale.weekdaysParse(input) % 7 || 7;
+        }
+        return isNaN(input) ? null : input;
+    }
+
+    // LOCALES
+    function shiftWeekdays(ws, n) {
+        return ws.slice(n, 7).concat(ws.slice(0, n));
+    }
+
+    var defaultLocaleWeekdays =
+            'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_'),
+        defaultLocaleWeekdaysShort = 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        defaultLocaleWeekdaysMin = 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        defaultWeekdaysRegex = matchWord,
+        defaultWeekdaysShortRegex = matchWord,
+        defaultWeekdaysMinRegex = matchWord;
+
+    function localeWeekdays(m, format) {
+        var weekdays = isArray(this._weekdays)
+            ? this._weekdays
+            : this._weekdays[
+                  m && m !== true && this._weekdays.isFormat.test(format)
+                      ? 'format'
+                      : 'standalone'
+              ];
+        return m === true
+            ? shiftWeekdays(weekdays, this._week.dow)
+            : m
+              ? weekdays[m.day()]
+              : weekdays;
+    }
+
+    function localeWeekdaysShort(m) {
+        return m === true
+            ? shiftWeekdays(this._weekdaysShort, this._week.dow)
+            : m
+              ? this._weekdaysShort[m.day()]
+              : this._weekdaysShort;
+    }
+
+    function localeWeekdaysMin(m) {
+        return m === true
+            ? shiftWeekdays(this._weekdaysMin, this._week.dow)
+            : m
+              ? this._weekdaysMin[m.day()]
+              : this._weekdaysMin;
+    }
+
+    function handleStrictParse$1(weekdayName, format, strict) {
+        var i,
+            ii,
+            mom,
+            llc = weekdayName.toLocaleLowerCase();
+        if (!this._weekdaysParse) {
+            this._weekdaysParse = [];
+            this._shortWeekdaysParse = [];
+            this._minWeekdaysParse = [];
+
+            for (i = 0; i < 7; ++i) {
+                mom = createUTC([2000, 1]).day(i);
+                this._minWeekdaysParse[i] = this.weekdaysMin(
+                    mom,
+                    ''
+                ).toLocaleLowerCase();
+                this._shortWeekdaysParse[i] = this.weekdaysShort(
+                    mom,
+                    ''
+                ).toLocaleLowerCase();
+                this._weekdaysParse[i] = this.weekdays(mom, '').toLocaleLowerCase();
+            }
+        }
+
+        if (strict) {
+            if (format === 'dddd') {
+                ii = indexOf.call(this._weekdaysParse, llc);
+                return ii !== -1 ? ii : null;
+            } else if (format === 'ddd') {
+                ii = indexOf.call(this._shortWeekdaysParse, llc);
+                return ii !== -1 ? ii : null;
+            } else {
+                ii = indexOf.call(this._minWeekdaysParse, llc);
+                return ii !== -1 ? ii : null;
+            }
+        } else {
+            if (format === 'dddd') {
+                ii = indexOf.call(this._weekdaysParse, llc);
+                if (ii !== -1) {
+                    return ii;
+                }
+                ii = indexOf.call(this._shortWeekdaysParse, llc);
+                if (ii !== -1) {
+                    return ii;
+                }
+                ii = indexOf.call(this._minWeekdaysParse, llc);
+                return ii !== -1 ? ii : null;
+            } else if (format === 'ddd') {
+                ii = indexOf.call(this._shortWeekdaysParse, llc);
+                if (ii !== -1) {
+                    return ii;
+                }
+                ii = indexOf.call(this._weekdaysParse, llc);
+                if (ii !== -1) {
+                    return ii;
+                }
+                ii = indexOf.call(this._minWeekdaysParse, llc);
+                return ii !== -1 ? ii : null;
+            } else {
+                ii = indexOf.call(this._minWeekdaysParse, llc);
+                if (ii !== -1) {
+                    return ii;
+                }
+                ii = indexOf.call(this._weekdaysParse, llc);
+                if (ii !== -1) {
+                    return ii;
+                }
+                ii = indexOf.call(this._shortWeekdaysParse, llc);
+                return ii !== -1 ? ii : null;
+            }
+        }
+    }
+
+    function localeWeekdaysParse(weekdayName, format, strict) {
+        var i, mom, regex;
+
+        if (this._weekdaysParseExact) {
+            return handleStrictParse$1.call(this, weekdayName, format, strict);
+        }
+
+        if (!this._weekdaysParse) {
+            this._weekdaysParse = [];
+            this._minWeekdaysParse = [];
+            this._shortWeekdaysParse = [];
+            this._fullWeekdaysParse = [];
+        }
+
+        for (i = 0; i < 7; i++) {
+            // make the regex if we don't have it already
+
+            mom = createUTC([2000, 1]).day(i);
+            if (strict && !this._fullWeekdaysParse[i]) {
+                this._fullWeekdaysParse[i] = new RegExp(
+                    '^' + this.weekdays(mom, '').replace('.', '\\.?') + '$',
+                    'i'
+                );
+                this._shortWeekdaysParse[i] = new RegExp(
+                    '^' + this.weekdaysShort(mom, '').replace('.', '\\.?') + '$',
+                    'i'
+                );
+                this._minWeekdaysParse[i] = new RegExp(
+                    '^' + this.weekdaysMin(mom, '').replace('.', '\\.?') + '$',
+                    'i'
+                );
+            }
+            if (!this._weekdaysParse[i]) {
+                regex =
+                    '^' +
+                    this.weekdays(mom, '') +
+                    '|^' +
+                    this.weekdaysShort(mom, '') +
+                    '|^' +
+                    this.weekdaysMin(mom, '');
+                this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');
+            }
+            // test the regex
+            if (
+                strict &&
+                format === 'dddd' &&
+                this._fullWeekdaysParse[i].test(weekdayName)
+            ) {
+                return i;
+            } else if (
+                strict &&
+                format === 'ddd' &&
+                this._shortWeekdaysParse[i].test(weekdayName)
+            ) {
+                return i;
+            } else if (
+                strict &&
+                format === 'dd' &&
+                this._minWeekdaysParse[i].test(weekdayName)
+            ) {
+                return i;
+            } else if (!strict && this._weekdaysParse[i].test(weekdayName)) {
+                return i;
+            }
+        }
+    }
+
+    // MOMENTS
+
+    function getSetDayOfWeek(input) {
+        if (!this.isValid()) {
+            return input != null ? this : NaN;
+        }
+
+        var day = get(this, 'Day');
+        if (input != null) {
+            input = parseWeekday(input, this.localeData());
+            return this.add(input - day, 'd');
+        } else {
+            return day;
+        }
+    }
+
+    function getSetLocaleDayOfWeek(input) {
+        if (!this.isValid()) {
+            return input != null ? this : NaN;
+        }
+        var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7;
+        return input == null ? weekday : this.add(input - weekday, 'd');
+    }
+
+    function getSetISODayOfWeek(input) {
+        if (!this.isValid()) {
+            return input != null ? this : NaN;
+        }
+
+        // behaves the same as moment#day except
+        // as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)
+        // as a setter, sunday should belong to the previous week.
+
+        if (input != null) {
+            var weekday = parseIsoWeekday(input, this.localeData());
+            return this.day(this.day() % 7 ? weekday : weekday - 7);
+        } else {
+            return this.day() || 7;
+        }
+    }
+
+    function weekdaysRegex(isStrict) {
+        if (this._weekdaysParseExact) {
+            if (!hasOwnProp(this, '_weekdaysRegex')) {
+                computeWeekdaysParse.call(this);
+            }
+            if (isStrict) {
+                return this._weekdaysStrictRegex;
+            } else {
+                return this._weekdaysRegex;
+            }
+        } else {
+            if (!hasOwnProp(this, '_weekdaysRegex')) {
+                this._weekdaysRegex = defaultWeekdaysRegex;
+            }
+            return this._weekdaysStrictRegex && isStrict
+                ? this._weekdaysStrictRegex
+                : this._weekdaysRegex;
+        }
+    }
+
+    function weekdaysShortRegex(isStrict) {
+        if (this._weekdaysParseExact) {
+            if (!hasOwnProp(this, '_weekdaysRegex')) {
+                computeWeekdaysParse.call(this);
+            }
+            if (isStrict) {
+                return this._weekdaysShortStrictRegex;
+            } else {
+                return this._weekdaysShortRegex;
+            }
+        } else {
+            if (!hasOwnProp(this, '_weekdaysShortRegex')) {
+                this._weekdaysShortRegex = defaultWeekdaysShortRegex;
+            }
+            return this._weekdaysShortStrictRegex && isStrict
+                ? this._weekdaysShortStrictRegex
+                : this._weekdaysShortRegex;
+        }
+    }
+
+    function weekdaysMinRegex(isStrict) {
+        if (this._weekdaysParseExact) {
+            if (!hasOwnProp(this, '_weekdaysRegex')) {
+                computeWeekdaysParse.call(this);
+            }
+            if (isStrict) {
+                return this._weekdaysMinStrictRegex;
+            } else {
+                return this._weekdaysMinRegex;
+            }
+        } else {
+            if (!hasOwnProp(this, '_weekdaysMinRegex')) {
+                this._weekdaysMinRegex = defaultWeekdaysMinRegex;
+            }
+            return this._weekdaysMinStrictRegex && isStrict
+                ? this._weekdaysMinStrictRegex
+                : this._weekdaysMinRegex;
+        }
+    }
+
+    function computeWeekdaysParse() {
+        function cmpLenRev(a, b) {
+            return b.length - a.length;
+        }
+
+        var minPieces = [],
+            shortPieces = [],
+            longPieces = [],
+            mixedPieces = [],
+            i,
+            mom,
+            minp,
+            shortp,
+            longp;
+        for (i = 0; i < 7; i++) {
+            // make the regex if we don't have it already
+            mom = createUTC([2000, 1]).day(i);
+            minp = regexEscape(this.weekdaysMin(mom, ''));
+            shortp = regexEscape(this.weekdaysShort(mom, ''));
+            longp = regexEscape(this.weekdays(mom, ''));
+            minPieces.push(minp);
+            shortPieces.push(shortp);
+            longPieces.push(longp);
+            mixedPieces.push(minp);
+            mixedPieces.push(shortp);
+            mixedPieces.push(longp);
+        }
+        // Sorting makes sure if one weekday (or abbr) is a prefix of another it
+        // will match the longer piece.
+        minPieces.sort(cmpLenRev);
+        shortPieces.sort(cmpLenRev);
+        longPieces.sort(cmpLenRev);
+        mixedPieces.sort(cmpLenRev);
+
+        this._weekdaysRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
+        this._weekdaysShortRegex = this._weekdaysRegex;
+        this._weekdaysMinRegex = this._weekdaysRegex;
+
+        this._weekdaysStrictRegex = new RegExp(
+            '^(' + longPieces.join('|') + ')',
+            'i'
+        );
+        this._weekdaysShortStrictRegex = new RegExp(
+            '^(' + shortPieces.join('|') + ')',
+            'i'
+        );
+        this._weekdaysMinStrictRegex = new RegExp(
+            '^(' + minPieces.join('|') + ')',
+            'i'
+        );
+    }
+
+    // FORMATTING
+
+    function hFormat() {
+        return this.hours() % 12 || 12;
+    }
+
+    function kFormat() {
+        return this.hours() || 24;
+    }
+
+    addFormatToken('H', ['HH', 2], 0, 'hour');
+    addFormatToken('h', ['hh', 2], 0, hFormat);
+    addFormatToken('k', ['kk', 2], 0, kFormat);
+
+    addFormatToken('hmm', 0, 0, function () {
+        return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2);
+    });
+
+    addFormatToken('hmmss', 0, 0, function () {
+        return (
+            '' +
+            hFormat.apply(this) +
+            zeroFill(this.minutes(), 2) +
+            zeroFill(this.seconds(), 2)
+        );
+    });
+
+    addFormatToken('Hmm', 0, 0, function () {
+        return '' + this.hours() + zeroFill(this.minutes(), 2);
+    });
+
+    addFormatToken('Hmmss', 0, 0, function () {
+        return (
+            '' +
+            this.hours() +
+            zeroFill(this.minutes(), 2) +
+            zeroFill(this.seconds(), 2)
+        );
+    });
+
+    function meridiem(token, lowercase) {
+        addFormatToken(token, 0, 0, function () {
+            return this.localeData().meridiem(
+                this.hours(),
+                this.minutes(),
+                lowercase
+            );
+        });
+    }
+
+    meridiem('a', true);
+    meridiem('A', false);
+
+    // PARSING
+
+    function matchMeridiem(isStrict, locale) {
+        return locale._meridiemParse;
+    }
+
+    addRegexToken('a', matchMeridiem);
+    addRegexToken('A', matchMeridiem);
+    addRegexToken('H', match1to2, match1to2HasZero);
+    addRegexToken('h', match1to2, match1to2NoLeadingZero);
+    addRegexToken('k', match1to2, match1to2NoLeadingZero);
+    addRegexToken('HH', match1to2, match2);
+    addRegexToken('hh', match1to2, match2);
+    addRegexToken('kk', match1to2, match2);
+
+    addRegexToken('hmm', match3to4);
+    addRegexToken('hmmss', match5to6);
+    addRegexToken('Hmm', match3to4);
+    addRegexToken('Hmmss', match5to6);
+
+    addParseToken(['H', 'HH'], HOUR);
+    addParseToken(['k', 'kk'], function (input, array, config) {
+        var kInput = toInt(input);
+        array[HOUR] = kInput === 24 ? 0 : kInput;
+    });
+    addParseToken(['a', 'A'], function (input, array, config) {
+        config._isPm = config._locale.isPM(input);
+        config._meridiem = input;
+    });
+    addParseToken(['h', 'hh'], function (input, array, config) {
+        array[HOUR] = toInt(input);
+        getParsingFlags(config).bigHour = true;
+    });
+    addParseToken('hmm', function (input, array, config) {
+        var pos = input.length - 2;
+        array[HOUR] = toInt(input.substr(0, pos));
+        array[MINUTE] = toInt(input.substr(pos));
+        getParsingFlags(config).bigHour = true;
+    });
+    addParseToken('hmmss', function (input, array, config) {
+        var pos1 = input.length - 4,
+            pos2 = input.length - 2;
+        array[HOUR] = toInt(input.substr(0, pos1));
+        array[MINUTE] = toInt(input.substr(pos1, 2));
+        array[SECOND] = toInt(input.substr(pos2));
+        getParsingFlags(config).bigHour = true;
+    });
+    addParseToken('Hmm', function (input, array, config) {
+        var pos = input.length - 2;
+        array[HOUR] = toInt(input.substr(0, pos));
+        array[MINUTE] = toInt(input.substr(pos));
+    });
+    addParseToken('Hmmss', function (input, array, config) {
+        var pos1 = input.length - 4,
+            pos2 = input.length - 2;
+        array[HOUR] = toInt(input.substr(0, pos1));
+        array[MINUTE] = toInt(input.substr(pos1, 2));
+        array[SECOND] = toInt(input.substr(pos2));
+    });
+
+    // LOCALES
+
+    function localeIsPM(input) {
+        // IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays
+        // Using charAt should be more compatible.
+        return (input + '').toLowerCase().charAt(0) === 'p';
+    }
+
+    var defaultLocaleMeridiemParse = /[ap]\.?m?\.?/i,
+        // Setting the hour should keep the time, because the user explicitly
+        // specified which hour they want. So trying to maintain the same hour (in
+        // a new timezone) makes sense. Adding/subtracting hours does not follow
+        // this rule.
+        getSetHour = makeGetSet('Hours', true);
+
+    function localeMeridiem(hours, minutes, isLower) {
+        if (hours > 11) {
+            return isLower ? 'pm' : 'PM';
+        } else {
+            return isLower ? 'am' : 'AM';
+        }
+    }
+
+    var baseConfig = {
+        calendar: defaultCalendar,
+        longDateFormat: defaultLongDateFormat,
+        invalidDate: defaultInvalidDate,
+        ordinal: defaultOrdinal,
+        dayOfMonthOrdinalParse: defaultDayOfMonthOrdinalParse,
+        relativeTime: defaultRelativeTime,
+
+        months: defaultLocaleMonths,
+        monthsShort: defaultLocaleMonthsShort,
+
+        week: defaultLocaleWeek,
+
+        weekdays: defaultLocaleWeekdays,
+        weekdaysMin: defaultLocaleWeekdaysMin,
+        weekdaysShort: defaultLocaleWeekdaysShort,
+
+        meridiemParse: defaultLocaleMeridiemParse,
+    };
+
+    // internal storage for locale config files
+    var locales = {},
+        localeFamilies = {},
+        globalLocale;
+
+    function commonPrefix(arr1, arr2) {
+        var i,
+            minl = Math.min(arr1.length, arr2.length);
+        for (i = 0; i < minl; i += 1) {
+            if (arr1[i] !== arr2[i]) {
+                return i;
+            }
+        }
+        return minl;
+    }
+
+    function normalizeLocale(key) {
+        return key ? key.toLowerCase().replace('_', '-') : key;
+    }
+
+    // pick the locale from the array
+    // try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each
+    // substring from most specific to least, but move to the next array item if it's a more specific variant than the current root
+    function chooseLocale(names) {
+        var i = 0,
+            j,
+            next,
+            locale,
+            split;
+
+        while (i < names.length) {
+            split = normalizeLocale(names[i]).split('-');
+            j = split.length;
+            next = normalizeLocale(names[i + 1]);
+            next = next ? next.split('-') : null;
+            while (j > 0) {
+                locale = loadLocale(split.slice(0, j).join('-'));
+                if (locale) {
+                    return locale;
+                }
+                if (
+                    next &&
+                    next.length >= j &&
+                    commonPrefix(split, next) >= j - 1
+                ) {
+                    //the next array item is better than a shallower substring of this one
+                    break;
+                }
+                j--;
+            }
+            i++;
+        }
+        return globalLocale;
+    }
+
+    function isLocaleNameSane(name) {
+        // Prevent names that look like filesystem paths, i.e contain '/' or '\'
+        // Ensure name is available and function returns boolean
+        return !!(name && name.match('^[^/\\\\]*$'));
+    }
+
+    function loadLocale(name) {
+        var oldLocale = null,
+            aliasedRequire;
+        // TODO: Find a better way to register and load all the locales in Node
+        if (
+            locales[name] === undefined &&
+            typeof module !== 'undefined' &&
+            module &&
+            module.exports &&
+            isLocaleNameSane(name)
+        ) {
+            try {
+                oldLocale = globalLocale._abbr;
+                aliasedRequire = require;
+                aliasedRequire('./locale/' + name);
+                getSetGlobalLocale(oldLocale);
+            } catch (e) {
+                // mark as not found to avoid repeating expensive file require call causing high CPU
+                // when trying to find en-US, en_US, en-us for every format call
+                locales[name] = null; // null means not found
+            }
+        }
+        return locales[name];
+    }
+
+    // This function will load locale and then set the global locale.  If
+    // no arguments are passed in, it will simply return the current global
+    // locale key.
+    function getSetGlobalLocale(key, values) {
+        var data;
+        if (key) {
+            if (isUndefined(values)) {
+                data = getLocale(key);
+            } else {
+                data = defineLocale(key, values);
+            }
+
+            if (data) {
+                // moment.duration._locale = moment._locale = data;
+                globalLocale = data;
+            } else {
+                if (typeof console !== 'undefined' && console.warn) {
+                    //warn user if arguments are passed but the locale could not be set
+                    console.warn(
+                        'Locale ' + key + ' not found. Did you forget to load it?'
+                    );
+                }
+            }
+        }
+
+        return globalLocale._abbr;
+    }
+
+    function defineLocale(name, config) {
+        if (config !== null) {
+            var locale,
+                parentConfig = baseConfig;
+            config.abbr = name;
+            if (locales[name] != null) {
+                deprecateSimple(
+                    'defineLocaleOverride',
+                    'use moment.updateLocale(localeName, config) to change ' +
+                        'an existing locale. moment.defineLocale(localeName, ' +
+                        'config) should only be used for creating a new locale ' +
+                        'See http://momentjs.com/guides/#/warnings/define-locale/ for more info.'
+                );
+                parentConfig = locales[name]._config;
+            } else if (config.parentLocale != null) {
+                if (locales[config.parentLocale] != null) {
+                    parentConfig = locales[config.parentLocale]._config;
+                } else {
+                    locale = loadLocale(config.parentLocale);
+                    if (locale != null) {
+                        parentConfig = locale._config;
+                    } else {
+                        if (!localeFamilies[config.parentLocale]) {
+                            localeFamilies[config.parentLocale] = [];
+                        }
+                        localeFamilies[config.parentLocale].push({
+                            name: name,
+                            config: config,
+                        });
+                        return null;
+                    }
+                }
+            }
+            locales[name] = new Locale(mergeConfigs(parentConfig, config));
+
+            if (localeFamilies[name]) {
+                localeFamilies[name].forEach(function (x) {
+                    defineLocale(x.name, x.config);
+                });
+            }
+
+            // backwards compat for now: also set the locale
+            // make sure we set the locale AFTER all child locales have been
+            // created, so we won't end up with the child locale set.
+            getSetGlobalLocale(name);
+
+            return locales[name];
+        } else {
+            // useful for testing
+            delete locales[name];
+            return null;
+        }
+    }
+
+    function updateLocale(name, config) {
+        if (config != null) {
+            var locale,
+                tmpLocale,
+                parentConfig = baseConfig;
+
+            if (locales[name] != null && locales[name].parentLocale != null) {
+                // Update existing child locale in-place to avoid memory-leaks
+                locales[name].set(mergeConfigs(locales[name]._config, config));
+            } else {
+                // MERGE
+                tmpLocale = loadLocale(name);
+                if (tmpLocale != null) {
+                    parentConfig = tmpLocale._config;
+                }
+                config = mergeConfigs(parentConfig, config);
+                if (tmpLocale == null) {
+                    // updateLocale is called for creating a new locale
+                    // Set abbr so it will have a name (getters return
+                    // undefined otherwise).
+                    config.abbr = name;
+                }
+                locale = new Locale(config);
+                locale.parentLocale = locales[name];
+                locales[name] = locale;
+            }
+
+            // backwards compat for now: also set the locale
+            getSetGlobalLocale(name);
+        } else {
+            // pass null for config to unupdate, useful for tests
+            if (locales[name] != null) {
+                if (locales[name].parentLocale != null) {
+                    locales[name] = locales[name].parentLocale;
+                    if (name === getSetGlobalLocale()) {
+                        getSetGlobalLocale(name);
+                    }
+                } else if (locales[name] != null) {
+                    delete locales[name];
+                }
+            }
+        }
+        return locales[name];
+    }
+
+    // returns locale data
+    function getLocale(key) {
+        var locale;
+
+        if (key && key._locale && key._locale._abbr) {
+            key = key._locale._abbr;
+        }
+
+        if (!key) {
+            return globalLocale;
+        }
+
+        if (!isArray(key)) {
+            //short-circuit everything else
+            locale = loadLocale(key);
+            if (locale) {
+                return locale;
+            }
+            key = [key];
+        }
+
+        return chooseLocale(key);
+    }
+
+    function listLocales() {
+        return keys(locales);
+    }
+
+    function checkOverflow(m) {
+        var overflow,
+            a = m._a;
+
+        if (a && getParsingFlags(m).overflow === -2) {
+            overflow =
+                a[MONTH] < 0 || a[MONTH] > 11
+                    ? MONTH
+                    : a[DATE] < 1 || a[DATE] > daysInMonth(a[YEAR], a[MONTH])
+                      ? DATE
+                      : a[HOUR] < 0 ||
+                          a[HOUR] > 24 ||
+                          (a[HOUR] === 24 &&
+                              (a[MINUTE] !== 0 ||
+                                  a[SECOND] !== 0 ||
+                                  a[MILLISECOND] !== 0))
+                        ? HOUR
+                        : a[MINUTE] < 0 || a[MINUTE] > 59
+                          ? MINUTE
+                          : a[SECOND] < 0 || a[SECOND] > 59
+                            ? SECOND
+                            : a[MILLISECOND] < 0 || a[MILLISECOND] > 999
+                              ? MILLISECOND
+                              : -1;
+
+            if (
+                getParsingFlags(m)._overflowDayOfYear &&
+                (overflow < YEAR || overflow > DATE)
+            ) {
+                overflow = DATE;
+            }
+            if (getParsingFlags(m)._overflowWeeks && overflow === -1) {
+                overflow = WEEK;
+            }
+            if (getParsingFlags(m)._overflowWeekday && overflow === -1) {
+                overflow = WEEKDAY;
+            }
+
+            getParsingFlags(m).overflow = overflow;
+        }
+
+        return m;
+    }
+
+    // iso 8601 regex
+    // 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
+    var extendedIsoRegex =
+            /^\s*((?:[+-]\d{6}|\d{4})-(?:\d\d-\d\d|W\d\d-\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?::\d\d(?::\d\d(?:[.,]\d+)?)?)?)([+-]\d\d(?::?\d\d)?|\s*Z)?)?$/,
+        basicIsoRegex =
+            /^\s*((?:[+-]\d{6}|\d{4})(?:\d\d\d\d|W\d\d\d|W\d\d|\d\d\d|\d\d|))(?:(T| )(\d\d(?:\d\d(?:\d\d(?:[.,]\d+)?)?)?)([+-]\d\d(?::?\d\d)?|\s*Z)?)?$/,
+        tzRegex = /Z|[+-]\d\d(?::?\d\d)?/,
+        isoDates = [
+            ['YYYYYY-MM-DD', /[+-]\d{6}-\d\d-\d\d/],
+            ['YYYY-MM-DD', /\d{4}-\d\d-\d\d/],
+            ['GGGG-[W]WW-E', /\d{4}-W\d\d-\d/],
+            ['GGGG-[W]WW', /\d{4}-W\d\d/, false],
+            ['YYYY-DDD', /\d{4}-\d{3}/],
+            ['YYYY-MM', /\d{4}-\d\d/, false],
+            ['YYYYYYMMDD', /[+-]\d{10}/],
+            ['YYYYMMDD', /\d{8}/],
+            ['GGGG[W]WWE', /\d{4}W\d{3}/],
+            ['GGGG[W]WW', /\d{4}W\d{2}/, false],
+            ['YYYYDDD', /\d{7}/],
+            ['YYYYMM', /\d{6}/, false],
+            ['YYYY', /\d{4}/, false],
+        ],
+        // iso time formats and regexes
+        isoTimes = [
+            ['HH:mm:ss.SSSS', /\d\d:\d\d:\d\d\.\d+/],
+            ['HH:mm:ss,SSSS', /\d\d:\d\d:\d\d,\d+/],
+            ['HH:mm:ss', /\d\d:\d\d:\d\d/],
+            ['HH:mm', /\d\d:\d\d/],
+            ['HHmmss.SSSS', /\d\d\d\d\d\d\.\d+/],
+            ['HHmmss,SSSS', /\d\d\d\d\d\d,\d+/],
+            ['HHmmss', /\d\d\d\d\d\d/],
+            ['HHmm', /\d\d\d\d/],
+            ['HH', /\d\d/],
+        ],
+        aspNetJsonRegex = /^\/?Date\((-?\d+)/i,
+        // RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3
+        rfc2822 =
+            /^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\s)?(\d{1,2})\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s(\d{2,4})\s(\d\d):(\d\d)(?::(\d\d))?\s(?:(UT|GMT|[ECMP][SD]T)|([Zz])|([+-]\d{4}))$/,
+        obsOffsets = {
+            UT: 0,
+            GMT: 0,
+            EDT: -4 * 60,
+            EST: -5 * 60,
+            CDT: -5 * 60,
+            CST: -6 * 60,
+            MDT: -6 * 60,
+            MST: -7 * 60,
+            PDT: -7 * 60,
+            PST: -8 * 60,
+        };
+
+    // date from iso format
+    function configFromISO(config) {
+        var i,
+            l,
+            string = config._i,
+            match = extendedIsoRegex.exec(string) || basicIsoRegex.exec(string),
+            allowTime,
+            dateFormat,
+            timeFormat,
+            tzFormat,
+            isoDatesLen = isoDates.length,
+            isoTimesLen = isoTimes.length;
+
+        if (match) {
+            getParsingFlags(config).iso = true;
+            for (i = 0, l = isoDatesLen; i < l; i++) {
+                if (isoDates[i][1].exec(match[1])) {
+                    dateFormat = isoDates[i][0];
+                    allowTime = isoDates[i][2] !== false;
+                    break;
+                }
+            }
+            if (dateFormat == null) {
+                config._isValid = false;
+                return;
+            }
+            if (match[3]) {
+                for (i = 0, l = isoTimesLen; i < l; i++) {
+                    if (isoTimes[i][1].exec(match[3])) {
+                        // match[2] should be 'T' or space
+                        timeFormat = (match[2] || ' ') + isoTimes[i][0];
+                        break;
+                    }
+                }
+                if (timeFormat == null) {
+                    config._isValid = false;
+                    return;
+                }
+            }
+            if (!allowTime && timeFormat != null) {
+                config._isValid = false;
+                return;
+            }
+            if (match[4]) {
+                if (tzRegex.exec(match[4])) {
+                    tzFormat = 'Z';
+                } else {
+                    config._isValid = false;
+                    return;
+                }
+            }
+            config._f = dateFormat + (timeFormat || '') + (tzFormat || '');
+            configFromStringAndFormat(config);
+        } else {
+            config._isValid = false;
+        }
+    }
+
+    function extractFromRFC2822Strings(
+        yearStr,
+        monthStr,
+        dayStr,
+        hourStr,
+        minuteStr,
+        secondStr
+    ) {
+        var result = [
+            untruncateYear(yearStr),
+            defaultLocaleMonthsShort.indexOf(monthStr),
+            parseInt(dayStr, 10),
+            parseInt(hourStr, 10),
+            parseInt(minuteStr, 10),
+        ];
+
+        if (secondStr) {
+            result.push(parseInt(secondStr, 10));
+        }
+
+        return result;
+    }
+
+    function untruncateYear(yearStr) {
+        var year = parseInt(yearStr, 10);
+        if (year <= 49) {
+            return 2000 + year;
+        } else if (year <= 999) {
+            return 1900 + year;
+        }
+        return year;
+    }
+
+    function preprocessRFC2822(s) {
+        // Remove comments and folding whitespace and replace multiple-spaces with a single space
+        return s
+            .replace(/\([^()]*\)|[\n\t]/g, ' ')
+            .replace(/(\s\s+)/g, ' ')
+            .replace(/^\s\s*/, '')
+            .replace(/\s\s*$/, '');
+    }
+
+    function checkWeekday(weekdayStr, parsedInput, config) {
+        if (weekdayStr) {
+            // TODO: Replace the vanilla JS Date object with an independent day-of-week check.
+            var weekdayProvided = defaultLocaleWeekdaysShort.indexOf(weekdayStr),
+                weekdayActual = new Date(
+                    parsedInput[0],
+                    parsedInput[1],
+                    parsedInput[2]
+                ).getDay();
+            if (weekdayProvided !== weekdayActual) {
+                getParsingFlags(config).weekdayMismatch = true;
+                config._isValid = false;
+                return false;
+            }
+        }
+        return true;
+    }
+
+    function calculateOffset(obsOffset, militaryOffset, numOffset) {
+        if (obsOffset) {
+            return obsOffsets[obsOffset];
+        } else if (militaryOffset) {
+            // the only allowed military tz is Z
+            return 0;
+        } else {
+            var hm = parseInt(numOffset, 10),
+                m = hm % 100,
+                h = (hm - m) / 100;
+            return h * 60 + m;
+        }
+    }
+
+    // date and time from ref 2822 format
+    function configFromRFC2822(config) {
+        var match = rfc2822.exec(preprocessRFC2822(config._i)),
+            parsedArray;
+        if (match) {
+            parsedArray = extractFromRFC2822Strings(
+                match[4],
+                match[3],
+                match[2],
+                match[5],
+                match[6],
+                match[7]
+            );
+            if (!checkWeekday(match[1], parsedArray, config)) {
+                return;
+            }
+
+            config._a = parsedArray;
+            config._tzm = calculateOffset(match[8], match[9], match[10]);
+
+            config._d = createUTCDate.apply(null, config._a);
+            config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
+
+            getParsingFlags(config).rfc2822 = true;
+        } else {
+            config._isValid = false;
+        }
+    }
+
+    // date from 1) ASP.NET, 2) ISO, 3) RFC 2822 formats, or 4) optional fallback if parsing isn't strict
+    function configFromString(config) {
+        var matched = aspNetJsonRegex.exec(config._i);
+        if (matched !== null) {
+            config._d = new Date(+matched[1]);
+            return;
+        }
+
+        configFromISO(config);
+        if (config._isValid === false) {
+            delete config._isValid;
+        } else {
+            return;
+        }
+
+        configFromRFC2822(config);
+        if (config._isValid === false) {
+            delete config._isValid;
+        } else {
+            return;
+        }
+
+        if (config._strict) {
+            config._isValid = false;
+        } else {
+            // Final attempt, use Input Fallback
+            hooks.createFromInputFallback(config);
+        }
+    }
+
+    hooks.createFromInputFallback = deprecate(
+        'value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' +
+            'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' +
+            'discouraged. Please refer to http://momentjs.com/guides/#/warnings/js-date/ for more info.',
+        function (config) {
+            config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));
+        }
+    );
+
+    // Pick the first defined of two or three arguments.
+    function defaults(a, b, c) {
+        if (a != null) {
+            return a;
+        }
+        if (b != null) {
+            return b;
+        }
+        return c;
+    }
+
+    function currentDateArray(config) {
+        // hooks is actually the exported moment object
+        var nowValue = new Date(hooks.now());
+        if (config._useUTC) {
+            return [
+                nowValue.getUTCFullYear(),
+                nowValue.getUTCMonth(),
+                nowValue.getUTCDate(),
+            ];
+        }
+        return [nowValue.getFullYear(), nowValue.getMonth(), nowValue.getDate()];
+    }
+
+    // convert an array to a date.
+    // the array should mirror the parameters below
+    // note: all values past the year are optional and will default to the lowest possible value.
+    // [year, month, day , hour, minute, second, millisecond]
+    function configFromArray(config) {
+        var i,
+            date,
+            input = [],
+            currentDate,
+            expectedWeekday,
+            yearToUse;
+
+        if (config._d) {
+            return;
+        }
+
+        currentDate = currentDateArray(config);
+
+        //compute day of the year from weeks and weekdays
+        if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {
+            dayOfYearFromWeekInfo(config);
+        }
+
+        //if the day of the year is set, figure out what it is
+        if (config._dayOfYear != null) {
+            yearToUse = defaults(config._a[YEAR], currentDate[YEAR]);
+
+            if (
+                config._dayOfYear > daysInYear(yearToUse) ||
+                config._dayOfYear === 0
+            ) {
+                getParsingFlags(config)._overflowDayOfYear = true;
+            }
+
+            date = createUTCDate(yearToUse, 0, config._dayOfYear);
+            config._a[MONTH] = date.getUTCMonth();
+            config._a[DATE] = date.getUTCDate();
+        }
+
+        // Default to current date.
+        // * if no year, month, day of month are given, default to today
+        // * if day of month is given, default month and year
+        // * if month is given, default only year
+        // * if year is given, don't default anything
+        for (i = 0; i < 3 && config._a[i] == null; ++i) {
+            config._a[i] = input[i] = currentDate[i];
+        }
+
+        // Zero out whatever was not defaulted, including time
+        for (; i < 7; i++) {
+            config._a[i] = input[i] =
+                config._a[i] == null ? (i === 2 ? 1 : 0) : config._a[i];
+        }
+
+        // Check for 24:00:00.000
+        if (
+            config._a[HOUR] === 24 &&
+            config._a[MINUTE] === 0 &&
+            config._a[SECOND] === 0 &&
+            config._a[MILLISECOND] === 0
+        ) {
+            config._nextDay = true;
+            config._a[HOUR] = 0;
+        }
+
+        config._d = (config._useUTC ? createUTCDate : createDate).apply(
+            null,
+            input
+        );
+        expectedWeekday = config._useUTC
+            ? config._d.getUTCDay()
+            : config._d.getDay();
+
+        // Apply timezone offset from input. The actual utcOffset can be changed
+        // with parseZone.
+        if (config._tzm != null) {
+            config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
+        }
+
+        if (config._nextDay) {
+            config._a[HOUR] = 24;
+        }
+
+        // check for mismatching day of week
+        if (
+            config._w &&
+            typeof config._w.d !== 'undefined' &&
+            config._w.d !== expectedWeekday
+        ) {
+            getParsingFlags(config).weekdayMismatch = true;
+        }
+    }
+
+    function dayOfYearFromWeekInfo(config) {
+        var w, weekYear, week, weekday, dow, doy, temp, weekdayOverflow, curWeek;
+
+        w = config._w;
+        if (w.GG != null || w.W != null || w.E != null) {
+            dow = 1;
+            doy = 4;
+
+            // TODO: We need to take the current isoWeekYear, but that depends on
+            // how we interpret now (local, utc, fixed offset). So create
+            // a now version of current config (take local/utc/offset flags, and
+            // create now).
+            weekYear = defaults(
+                w.GG,
+                config._a[YEAR],
+                weekOfYear(createLocal(), 1, 4).year
+            );
+            week = defaults(w.W, 1);
+            weekday = defaults(w.E, 1);
+            if (weekday < 1 || weekday > 7) {
+                weekdayOverflow = true;
+            }
+        } else {
+            dow = config._locale._week.dow;
+            doy = config._locale._week.doy;
+
+            curWeek = weekOfYear(createLocal(), dow, doy);
+
+            weekYear = defaults(w.gg, config._a[YEAR], curWeek.year);
+
+            // Default to current week.
+            week = defaults(w.w, curWeek.week);
+
+            if (w.d != null) {
+                // weekday -- low day numbers are considered next week
+                weekday = w.d;
+                if (weekday < 0 || weekday > 6) {
+                    weekdayOverflow = true;
+                }
+            } else if (w.e != null) {
+                // local weekday -- counting starts from beginning of week
+                weekday = w.e + dow;
+                if (w.e < 0 || w.e > 6) {
+                    weekdayOverflow = true;
+                }
+            } else {
+                // default to beginning of week
+                weekday = dow;
+            }
+        }
+        if (week < 1 || week > weeksInYear(weekYear, dow, doy)) {
+            getParsingFlags(config)._overflowWeeks = true;
+        } else if (weekdayOverflow != null) {
+            getParsingFlags(config)._overflowWeekday = true;
+        } else {
+            temp = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy);
+            config._a[YEAR] = temp.year;
+            config._dayOfYear = temp.dayOfYear;
+        }
+    }
+
+    // constant that refers to the ISO standard
+    hooks.ISO_8601 = function () {};
+
+    // constant that refers to the RFC 2822 form
+    hooks.RFC_2822 = function () {};
+
+    // date from string and format string
+    function configFromStringAndFormat(config) {
+        // TODO: Move this to another part of the creation flow to prevent circular deps
+        if (config._f === hooks.ISO_8601) {
+            configFromISO(config);
+            return;
+        }
+        if (config._f === hooks.RFC_2822) {
+            configFromRFC2822(config);
+            return;
+        }
+        config._a = [];
+        getParsingFlags(config).empty = true;
+
+        // This array is used to make a Date, either with `new Date` or `Date.UTC`
+        var string = '' + config._i,
+            i,
+            parsedInput,
+            tokens,
+            token,
+            skipped,
+            stringLength = string.length,
+            totalParsedInputLength = 0,
+            era,
+            tokenLen;
+
+        tokens =
+            expandFormat(config._f, config._locale).match(formattingTokens) || [];
+        tokenLen = tokens.length;
+        for (i = 0; i < tokenLen; i++) {
+            token = tokens[i];
+            parsedInput = (string.match(getParseRegexForToken(token, config)) ||
+                [])[0];
+            if (parsedInput) {
+                skipped = string.substr(0, string.indexOf(parsedInput));
+                if (skipped.length > 0) {
+                    getParsingFlags(config).unusedInput.push(skipped);
+                }
+                string = string.slice(
+                    string.indexOf(parsedInput) + parsedInput.length
+                );
+                totalParsedInputLength += parsedInput.length;
+            }
+            // don't parse if it's not a known token
+            if (formatTokenFunctions[token]) {
+                if (parsedInput) {
+                    getParsingFlags(config).empty = false;
+                } else {
+                    getParsingFlags(config).unusedTokens.push(token);
+                }
+                addTimeToArrayFromToken(token, parsedInput, config);
+            } else if (config._strict && !parsedInput) {
+                getParsingFlags(config).unusedTokens.push(token);
+            }
+        }
+
+        // add remaining unparsed input length to the string
+        getParsingFlags(config).charsLeftOver =
+            stringLength - totalParsedInputLength;
+        if (string.length > 0) {
+            getParsingFlags(config).unusedInput.push(string);
+        }
+
+        // clear _12h flag if hour is <= 12
+        if (
+            config._a[HOUR] <= 12 &&
+            getParsingFlags(config).bigHour === true &&
+            config._a[HOUR] > 0
+        ) {
+            getParsingFlags(config).bigHour = undefined;
+        }
+
+        getParsingFlags(config).parsedDateParts = config._a.slice(0);
+        getParsingFlags(config).meridiem = config._meridiem;
+        // handle meridiem
+        config._a[HOUR] = meridiemFixWrap(
+            config._locale,
+            config._a[HOUR],
+            config._meridiem
+        );
+
+        // handle era
+        era = getParsingFlags(config).era;
+        if (era !== null) {
+            config._a[YEAR] = config._locale.erasConvertYear(era, config._a[YEAR]);
+        }
+
+        configFromArray(config);
+        checkOverflow(config);
+    }
+
+    function meridiemFixWrap(locale, hour, meridiem) {
+        var isPm;
+
+        if (meridiem == null) {
+            // nothing to do
+            return hour;
+        }
+        if (locale.meridiemHour != null) {
+            return locale.meridiemHour(hour, meridiem);
+        } else if (locale.isPM != null) {
+            // Fallback
+            isPm = locale.isPM(meridiem);
+            if (isPm && hour < 12) {
+                hour += 12;
+            }
+            if (!isPm && hour === 12) {
+                hour = 0;
+            }
+            return hour;
+        } else {
+            // this is not supposed to happen
+            return hour;
+        }
+    }
+
+    // date from string and array of format strings
+    function configFromStringAndArray(config) {
+        var tempConfig,
+            bestMoment,
+            scoreToBeat,
+            i,
+            currentScore,
+            validFormatFound,
+            bestFormatIsValid = false,
+            configfLen = config._f.length;
+
+        if (configfLen === 0) {
+            getParsingFlags(config).invalidFormat = true;
+            config._d = new Date(NaN);
+            return;
+        }
+
+        for (i = 0; i < configfLen; i++) {
+            currentScore = 0;
+            validFormatFound = false;
+            tempConfig = copyConfig({}, config);
+            if (config._useUTC != null) {
+                tempConfig._useUTC = config._useUTC;
+            }
+            tempConfig._f = config._f[i];
+            configFromStringAndFormat(tempConfig);
+
+            if (isValid(tempConfig)) {
+                validFormatFound = true;
+            }
+
+            // if there is any input that was not parsed add a penalty for that format
+            currentScore += getParsingFlags(tempConfig).charsLeftOver;
+
+            //or tokens
+            currentScore += getParsingFlags(tempConfig).unusedTokens.length * 10;
+
+            getParsingFlags(tempConfig).score = currentScore;
+
+            if (!bestFormatIsValid) {
+                if (
+                    scoreToBeat == null ||
+                    currentScore < scoreToBeat ||
+                    validFormatFound
+                ) {
+                    scoreToBeat = currentScore;
+                    bestMoment = tempConfig;
+                    if (validFormatFound) {
+                        bestFormatIsValid = true;
+                    }
+                }
+            } else {
+                if (currentScore < scoreToBeat) {
+                    scoreToBeat = currentScore;
+                    bestMoment = tempConfig;
+                }
+            }
+        }
+
+        extend(config, bestMoment || tempConfig);
+    }
+
+    function configFromObject(config) {
+        if (config._d) {
+            return;
+        }
+
+        var i = normalizeObjectUnits(config._i),
+            dayOrDate = i.day === undefined ? i.date : i.day;
+        config._a = map(
+            [i.year, i.month, dayOrDate, i.hour, i.minute, i.second, i.millisecond],
+            function (obj) {
+                return obj && parseInt(obj, 10);
+            }
+        );
+
+        configFromArray(config);
+    }
+
+    function createFromConfig(config) {
+        var res = new Moment(checkOverflow(prepareConfig(config)));
+        if (res._nextDay) {
+            // Adding is smart enough around DST
+            res.add(1, 'd');
+            res._nextDay = undefined;
+        }
+
+        return res;
+    }
+
+    function prepareConfig(config) {
+        var input = config._i,
+            format = config._f;
+
+        config._locale = config._locale || getLocale(config._l);
+
+        if (input === null || (format === undefined && input === '')) {
+            return createInvalid({ nullInput: true });
+        }
+
+        if (typeof input === 'string') {
+            config._i = input = config._locale.preparse(input);
+        }
+
+        if (isMoment(input)) {
+            return new Moment(checkOverflow(input));
+        } else if (isDate(input)) {
+            config._d = input;
+        } else if (isArray(format)) {
+            configFromStringAndArray(config);
+        } else if (format) {
+            configFromStringAndFormat(config);
+        } else {
+            configFromInput(config);
+        }
+
+        if (!isValid(config)) {
+            config._d = null;
+        }
+
+        return config;
+    }
+
+    function configFromInput(config) {
+        var input = config._i;
+        if (isUndefined(input)) {
+            config._d = new Date(hooks.now());
+        } else if (isDate(input)) {
+            config._d = new Date(input.valueOf());
+        } else if (typeof input === 'string') {
+            configFromString(config);
+        } else if (isArray(input)) {
+            config._a = map(input.slice(0), function (obj) {
+                return parseInt(obj, 10);
+            });
+            configFromArray(config);
+        } else if (isObject(input)) {
+            configFromObject(config);
+        } else if (isNumber(input)) {
+            // from milliseconds
+            config._d = new Date(input);
+        } else {
+            hooks.createFromInputFallback(config);
+        }
+    }
+
+    function createLocalOrUTC(input, format, locale, strict, isUTC) {
+        var c = {};
+
+        if (format === true || format === false) {
+            strict = format;
+            format = undefined;
+        }
+
+        if (locale === true || locale === false) {
+            strict = locale;
+            locale = undefined;
+        }
+
+        if (
+            (isObject(input) && isObjectEmpty(input)) ||
+            (isArray(input) && input.length === 0)
+        ) {
+            input = undefined;
+        }
+        // object construction must be done this way.
+        // https://github.com/moment/moment/issues/1423
+        c._isAMomentObject = true;
+        c._useUTC = c._isUTC = isUTC;
+        c._l = locale;
+        c._i = input;
+        c._f = format;
+        c._strict = strict;
+
+        return createFromConfig(c);
+    }
+
+    function createLocal(input, format, locale, strict) {
+        return createLocalOrUTC(input, format, locale, strict, false);
+    }
+
+    var prototypeMin = deprecate(
+            'moment().min is deprecated, use moment.max instead. http://momentjs.com/guides/#/warnings/min-max/',
+            function () {
+                var other = createLocal.apply(null, arguments);
+                if (this.isValid() && other.isValid()) {
+                    return other < this ? this : other;
+                } else {
+                    return createInvalid();
+                }
+            }
+        ),
+        prototypeMax = deprecate(
+            'moment().max is deprecated, use moment.min instead. http://momentjs.com/guides/#/warnings/min-max/',
+            function () {
+                var other = createLocal.apply(null, arguments);
+                if (this.isValid() && other.isValid()) {
+                    return other > this ? this : other;
+                } else {
+                    return createInvalid();
+                }
+            }
+        );
+
+    // Pick a moment m from moments so that m[fn](other) is true for all
+    // other. This relies on the function fn to be transitive.
+    //
+    // moments should either be an array of moment objects or an array, whose
+    // first element is an array of moment objects.
+    function pickBy(fn, moments) {
+        var res, i;
+        if (moments.length === 1 && isArray(moments[0])) {
+            moments = moments[0];
+        }
+        if (!moments.length) {
+            return createLocal();
+        }
+        res = moments[0];
+        for (i = 1; i < moments.length; ++i) {
+            if (!moments[i].isValid() || moments[i][fn](res)) {
+                res = moments[i];
+            }
+        }
+        return res;
+    }
+
+    // TODO: Use [].sort instead?
+    function min() {
+        var args = [].slice.call(arguments, 0);
+
+        return pickBy('isBefore', args);
+    }
+
+    function max() {
+        var args = [].slice.call(arguments, 0);
+
+        return pickBy('isAfter', args);
+    }
+
+    var now = function () {
+        return Date.now ? Date.now() : +new Date();
+    };
+
+    var ordering = [
+        'year',
+        'quarter',
+        'month',
+        'week',
+        'day',
+        'hour',
+        'minute',
+        'second',
+        'millisecond',
+    ];
+
+    function isDurationValid(m) {
+        var key,
+            unitHasDecimal = false,
+            i,
+            orderLen = ordering.length;
+        for (key in m) {
+            if (
+                hasOwnProp(m, key) &&
+                !(
+                    indexOf.call(ordering, key) !== -1 &&
+                    (m[key] == null || !isNaN(m[key]))
+                )
+            ) {
+                return false;
+            }
+        }
+
+        for (i = 0; i < orderLen; ++i) {
+            if (m[ordering[i]]) {
+                if (unitHasDecimal) {
+                    return false; // only allow non-integers for smallest unit
+                }
+                if (parseFloat(m[ordering[i]]) !== toInt(m[ordering[i]])) {
+                    unitHasDecimal = true;
+                }
+            }
+        }
+
+        return true;
+    }
+
+    function isValid$1() {
+        return this._isValid;
+    }
+
+    function createInvalid$1() {
+        return createDuration(NaN);
+    }
+
+    function Duration(duration) {
+        var normalizedInput = normalizeObjectUnits(duration),
+            years = normalizedInput.year || 0,
+            quarters = normalizedInput.quarter || 0,
+            months = normalizedInput.month || 0,
+            weeks = normalizedInput.week || normalizedInput.isoWeek || 0,
+            days = normalizedInput.day || 0,
+            hours = normalizedInput.hour || 0,
+            minutes = normalizedInput.minute || 0,
+            seconds = normalizedInput.second || 0,
+            milliseconds = normalizedInput.millisecond || 0;
+
+        this._isValid = isDurationValid(normalizedInput);
+
+        // representation for dateAddRemove
+        this._milliseconds =
+            +milliseconds +
+            seconds * 1e3 + // 1000
+            minutes * 6e4 + // 1000 * 60
+            hours * 1000 * 60 * 60; //using 1000 * 60 * 60 instead of 36e5 to avoid floating point rounding errors https://github.com/moment/moment/issues/2978
+        // Because of dateAddRemove treats 24 hours as different from a
+        // day when working around DST, we need to store them separately
+        this._days = +days + weeks * 7;
+        // It is impossible to translate months into days without knowing
+        // which months you are are talking about, so we have to store
+        // it separately.
+        this._months = +months + quarters * 3 + years * 12;
+
+        this._data = {};
+
+        this._locale = getLocale();
+
+        this._bubble();
+    }
+
+    function isDuration(obj) {
+        return obj instanceof Duration;
+    }
+
+    function absRound(number) {
+        if (number < 0) {
+            return Math.round(-1 * number) * -1;
+        } else {
+            return Math.round(number);
+        }
+    }
+
+    // compare two arrays, return the number of differences
+    function compareArrays(array1, array2, dontConvert) {
+        var len = Math.min(array1.length, array2.length),
+            lengthDiff = Math.abs(array1.length - array2.length),
+            diffs = 0,
+            i;
+        for (i = 0; i < len; i++) {
+            if (
+                (dontConvert && array1[i] !== array2[i]) ||
+                (!dontConvert && toInt(array1[i]) !== toInt(array2[i]))
+            ) {
+                diffs++;
+            }
+        }
+        return diffs + lengthDiff;
+    }
+
+    // FORMATTING
+
+    function offset(token, separator) {
+        addFormatToken(token, 0, 0, function () {
+            var offset = this.utcOffset(),
+                sign = '+';
+            if (offset < 0) {
+                offset = -offset;
+                sign = '-';
+            }
+            return (
+                sign +
+                zeroFill(~~(offset / 60), 2) +
+                separator +
+                zeroFill(~~offset % 60, 2)
+            );
+        });
+    }
+
+    offset('Z', ':');
+    offset('ZZ', '');
+
+    // PARSING
+
+    addRegexToken('Z', matchShortOffset);
+    addRegexToken('ZZ', matchShortOffset);
+    addParseToken(['Z', 'ZZ'], function (input, array, config) {
+        config._useUTC = true;
+        config._tzm = offsetFromString(matchShortOffset, input);
+    });
+
+    // HELPERS
+
+    // timezone chunker
+    // '+10:00' > ['10',  '00']
+    // '-1530'  > ['-15', '30']
+    var chunkOffset = /([\+\-]|\d\d)/gi;
+
+    function offsetFromString(matcher, string) {
+        var matches = (string || '').match(matcher),
+            chunk,
+            parts,
+            minutes;
+
+        if (matches === null) {
+            return null;
+        }
+
+        chunk = matches[matches.length - 1] || [];
+        parts = (chunk + '').match(chunkOffset) || ['-', 0, 0];
+        minutes = +(parts[1] * 60) + toInt(parts[2]);
+
+        return minutes === 0 ? 0 : parts[0] === '+' ? minutes : -minutes;
+    }
+
+    // Return a moment from input, that is local/utc/zone equivalent to model.
+    function cloneWithOffset(input, model) {
+        var res, diff;
+        if (model._isUTC) {
+            res = model.clone();
+            diff =
+                (isMoment(input) || isDate(input)
+                    ? input.valueOf()
+                    : createLocal(input).valueOf()) - res.valueOf();
+            // Use low-level api, because this fn is low-level api.
+            res._d.setTime(res._d.valueOf() + diff);
+            hooks.updateOffset(res, false);
+            return res;
+        } else {
+            return createLocal(input).local();
+        }
+    }
+
+    function getDateOffset(m) {
+        // On Firefox.24 Date#getTimezoneOffset returns a floating point.
+        // https://github.com/moment/moment/pull/1871
+        return -Math.round(m._d.getTimezoneOffset());
+    }
+
+    // HOOKS
+
+    // This function will be called whenever a moment is mutated.
+    // It is intended to keep the offset in sync with the timezone.
+    hooks.updateOffset = function () {};
+
+    // MOMENTS
+
+    // keepLocalTime = true means only change the timezone, without
+    // affecting the local hour. So 5:31:26 +0300 --[utcOffset(2, true)]-->
+    // 5:31:26 +0200 It is possible that 5:31:26 doesn't exist with offset
+    // +0200, so we adjust the time as needed, to be valid.
+    //
+    // Keeping the time actually adds/subtracts (one hour)
+    // from the actual represented time. That is why we call updateOffset
+    // a second time. In case it wants us to change the offset again
+    // _changeInProgress == true case, then we have to adjust, because
+    // there is no such time in the given timezone.
+    function getSetOffset(input, keepLocalTime, keepMinutes) {
+        var offset = this._offset || 0,
+            localAdjust;
+        if (!this.isValid()) {
+            return input != null ? this : NaN;
+        }
+        if (input != null) {
+            if (typeof input === 'string') {
+                input = offsetFromString(matchShortOffset, input);
+                if (input === null) {
+                    return this;
+                }
+            } else if (Math.abs(input) < 16 && !keepMinutes) {
+                input = input * 60;
+            }
+            if (!this._isUTC && keepLocalTime) {
+                localAdjust = getDateOffset(this);
+            }
+            this._offset = input;
+            this._isUTC = true;
+            if (localAdjust != null) {
+                this.add(localAdjust, 'm');
+            }
+            if (offset !== input) {
+                if (!keepLocalTime || this._changeInProgress) {
+                    addSubtract(
+                        this,
+                        createDuration(input - offset, 'm'),
+                        1,
+                        false
+                    );
+                } else if (!this._changeInProgress) {
+                    this._changeInProgress = true;
+                    hooks.updateOffset(this, true);
+                    this._changeInProgress = null;
+                }
+            }
+            return this;
+        } else {
+            return this._isUTC ? offset : getDateOffset(this);
+        }
+    }
+
+    function getSetZone(input, keepLocalTime) {
+        if (input != null) {
+            if (typeof input !== 'string') {
+                input = -input;
+            }
+
+            this.utcOffset(input, keepLocalTime);
+
+            return this;
+        } else {
+            return -this.utcOffset();
+        }
+    }
+
+    function setOffsetToUTC(keepLocalTime) {
+        return this.utcOffset(0, keepLocalTime);
+    }
+
+    function setOffsetToLocal(keepLocalTime) {
+        if (this._isUTC) {
+            this.utcOffset(0, keepLocalTime);
+            this._isUTC = false;
+
+            if (keepLocalTime) {
+                this.subtract(getDateOffset(this), 'm');
+            }
+        }
+        return this;
+    }
+
+    function setOffsetToParsedOffset() {
+        if (this._tzm != null) {
+            this.utcOffset(this._tzm, false, true);
+        } else if (typeof this._i === 'string') {
+            var tZone = offsetFromString(matchOffset, this._i);
+            if (tZone != null) {
+                this.utcOffset(tZone);
+            } else {
+                this.utcOffset(0, true);
+            }
+        }
+        return this;
+    }
+
+    function hasAlignedHourOffset(input) {
+        if (!this.isValid()) {
+            return false;
+        }
+        input = input ? createLocal(input).utcOffset() : 0;
+
+        return (this.utcOffset() - input) % 60 === 0;
+    }
+
+    function isDaylightSavingTime() {
+        return (
+            this.utcOffset() > this.clone().month(0).utcOffset() ||
+            this.utcOffset() > this.clone().month(5).utcOffset()
+        );
+    }
+
+    function isDaylightSavingTimeShifted() {
+        if (!isUndefined(this._isDSTShifted)) {
+            return this._isDSTShifted;
+        }
+
+        var c = {},
+            other;
+
+        copyConfig(c, this);
+        c = prepareConfig(c);
+
+        if (c._a) {
+            other = c._isUTC ? createUTC(c._a) : createLocal(c._a);
+            this._isDSTShifted =
+                this.isValid() && compareArrays(c._a, other.toArray()) > 0;
+        } else {
+            this._isDSTShifted = false;
+        }
+
+        return this._isDSTShifted;
+    }
+
+    function isLocal() {
+        return this.isValid() ? !this._isUTC : false;
+    }
+
+    function isUtcOffset() {
+        return this.isValid() ? this._isUTC : false;
+    }
+
+    function isUtc() {
+        return this.isValid() ? this._isUTC && this._offset === 0 : false;
+    }
+
+    // ASP.NET json date format regex
+    var aspNetRegex = /^(-|\+)?(?:(\d*)[. ])?(\d+):(\d+)(?::(\d+)(\.\d*)?)?$/,
+        // from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html
+        // somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere
+        // and further modified to allow for strings containing both week and day
+        isoRegex =
+            /^(-|\+)?P(?:([-+]?[0-9,.]*)Y)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)W)?(?:([-+]?[0-9,.]*)D)?(?:T(?:([-+]?[0-9,.]*)H)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)S)?)?$/;
+
+    function createDuration(input, key) {
+        var duration = input,
+            // matching against regexp is expensive, do it on demand
+            match = null,
+            sign,
+            ret,
+            diffRes;
+
+        if (isDuration(input)) {
+            duration = {
+                ms: input._milliseconds,
+                d: input._days,
+                M: input._months,
+            };
+        } else if (isNumber(input) || !isNaN(+input)) {
+            duration = {};
+            if (key) {
+                duration[key] = +input;
+            } else {
+                duration.milliseconds = +input;
+            }
+        } else if ((match = aspNetRegex.exec(input))) {
+            sign = match[1] === '-' ? -1 : 1;
+            duration = {
+                y: 0,
+                d: toInt(match[DATE]) * sign,
+                h: toInt(match[HOUR]) * sign,
+                m: toInt(match[MINUTE]) * sign,
+                s: toInt(match[SECOND]) * sign,
+                ms: toInt(absRound(match[MILLISECOND] * 1000)) * sign, // the millisecond decimal point is included in the match
+            };
+        } else if ((match = isoRegex.exec(input))) {
+            sign = match[1] === '-' ? -1 : 1;
+            duration = {
+                y: parseIso(match[2], sign),
+                M: parseIso(match[3], sign),
+                w: parseIso(match[4], sign),
+                d: parseIso(match[5], sign),
+                h: parseIso(match[6], sign),
+                m: parseIso(match[7], sign),
+                s: parseIso(match[8], sign),
+            };
+        } else if (duration == null) {
+            // checks for null or undefined
+            duration = {};
+        } else if (
+            typeof duration === 'object' &&
+            ('from' in duration || 'to' in duration)
+        ) {
+            diffRes = momentsDifference(
+                createLocal(duration.from),
+                createLocal(duration.to)
+            );
+
+            duration = {};
+            duration.ms = diffRes.milliseconds;
+            duration.M = diffRes.months;
+        }
+
+        ret = new Duration(duration);
+
+        if (isDuration(input) && hasOwnProp(input, '_locale')) {
+            ret._locale = input._locale;
+        }
+
+        if (isDuration(input) && hasOwnProp(input, '_isValid')) {
+            ret._isValid = input._isValid;
+        }
+
+        return ret;
+    }
+
+    createDuration.fn = Duration.prototype;
+    createDuration.invalid = createInvalid$1;
+
+    function parseIso(inp, sign) {
+        // We'd normally use ~~inp for this, but unfortunately it also
+        // converts floats to ints.
+        // inp may be undefined, so careful calling replace on it.
+        var res = inp && parseFloat(inp.replace(',', '.'));
+        // apply sign while we're at it
+        return (isNaN(res) ? 0 : res) * sign;
+    }
+
+    function positiveMomentsDifference(base, other) {
+        var res = {};
+
+        res.months =
+            other.month() - base.month() + (other.year() - base.year()) * 12;
+        if (base.clone().add(res.months, 'M').isAfter(other)) {
+            --res.months;
+        }
+
+        res.milliseconds = +other - +base.clone().add(res.months, 'M');
+
+        return res;
+    }
+
+    function momentsDifference(base, other) {
+        var res;
+        if (!(base.isValid() && other.isValid())) {
+            return { milliseconds: 0, months: 0 };
+        }
+
+        other = cloneWithOffset(other, base);
+        if (base.isBefore(other)) {
+            res = positiveMomentsDifference(base, other);
+        } else {
+            res = positiveMomentsDifference(other, base);
+            res.milliseconds = -res.milliseconds;
+            res.months = -res.months;
+        }
+
+        return res;
+    }
+
+    // TODO: remove 'name' arg after deprecation is removed
+    function createAdder(direction, name) {
+        return function (val, period) {
+            var dur, tmp;
+            //invert the arguments, but complain about it
+            if (period !== null && !isNaN(+period)) {
+                deprecateSimple(
+                    name,
+                    'moment().' +
+                        name +
+                        '(period, number) is deprecated. Please use moment().' +
+                        name +
+                        '(number, period). ' +
+                        'See http://momentjs.com/guides/#/warnings/add-inverted-param/ for more info.'
+                );
+                tmp = val;
+                val = period;
+                period = tmp;
+            }
+
+            dur = createDuration(val, period);
+            addSubtract(this, dur, direction);
+            return this;
+        };
+    }
+
+    function addSubtract(mom, duration, isAdding, updateOffset) {
+        var milliseconds = duration._milliseconds,
+            days = absRound(duration._days),
+            months = absRound(duration._months);
+
+        if (!mom.isValid()) {
+            // No op
+            return;
+        }
+
+        updateOffset = updateOffset == null ? true : updateOffset;
+
+        if (months) {
+            setMonth(mom, get(mom, 'Month') + months * isAdding);
+        }
+        if (days) {
+            set$1(mom, 'Date', get(mom, 'Date') + days * isAdding);
+        }
+        if (milliseconds) {
+            mom._d.setTime(mom._d.valueOf() + milliseconds * isAdding);
+        }
+        if (updateOffset) {
+            hooks.updateOffset(mom, days || months);
+        }
+    }
+
+    var add = createAdder(1, 'add'),
+        subtract = createAdder(-1, 'subtract');
+
+    function isString(input) {
+        return typeof input === 'string' || input instanceof String;
+    }
+
+    // type MomentInput = Moment | Date | string | number | (number | string)[] | MomentInputObject | void; // null | undefined
+    function isMomentInput(input) {
+        return (
+            isMoment(input) ||
+            isDate(input) ||
+            isString(input) ||
+            isNumber(input) ||
+            isNumberOrStringArray(input) ||
+            isMomentInputObject(input) ||
+            input === null ||
+            input === undefined
+        );
+    }
+
+    function isMomentInputObject(input) {
+        var objectTest = isObject(input) && !isObjectEmpty(input),
+            propertyTest = false,
+            properties = [
+                'years',
+                'year',
+                'y',
+                'months',
+                'month',
+                'M',
+                'days',
+                'day',
+                'd',
+                'dates',
+                'date',
+                'D',
+                'hours',
+                'hour',
+                'h',
+                'minutes',
+                'minute',
+                'm',
+                'seconds',
+                'second',
+                's',
+                'milliseconds',
+                'millisecond',
+                'ms',
+            ],
+            i,
+            property,
+            propertyLen = properties.length;
+
+        for (i = 0; i < propertyLen; i += 1) {
+            property = properties[i];
+            propertyTest = propertyTest || hasOwnProp(input, property);
+        }
+
+        return objectTest && propertyTest;
+    }
+
+    function isNumberOrStringArray(input) {
+        var arrayTest = isArray(input),
+            dataTypeTest = false;
+        if (arrayTest) {
+            dataTypeTest =
+                input.filter(function (item) {
+                    return !isNumber(item) && isString(input);
+                }).length === 0;
+        }
+        return arrayTest && dataTypeTest;
+    }
+
+    function isCalendarSpec(input) {
+        var objectTest = isObject(input) && !isObjectEmpty(input),
+            propertyTest = false,
+            properties = [
+                'sameDay',
+                'nextDay',
+                'lastDay',
+                'nextWeek',
+                'lastWeek',
+                'sameElse',
+            ],
+            i,
+            property;
+
+        for (i = 0; i < properties.length; i += 1) {
+            property = properties[i];
+            propertyTest = propertyTest || hasOwnProp(input, property);
+        }
+
+        return objectTest && propertyTest;
+    }
+
+    function getCalendarFormat(myMoment, now) {
+        var diff = myMoment.diff(now, 'days', true);
+        return diff < -6
+            ? 'sameElse'
+            : diff < -1
+              ? 'lastWeek'
+              : diff < 0
+                ? 'lastDay'
+                : diff < 1
+                  ? 'sameDay'
+                  : diff < 2
+                    ? 'nextDay'
+                    : diff < 7
+                      ? 'nextWeek'
+                      : 'sameElse';
+    }
+
+    function calendar$1(time, formats) {
+        // Support for single parameter, formats only overload to the calendar function
+        if (arguments.length === 1) {
+            if (!arguments[0]) {
+                time = undefined;
+                formats = undefined;
+            } else if (isMomentInput(arguments[0])) {
+                time = arguments[0];
+                formats = undefined;
+            } else if (isCalendarSpec(arguments[0])) {
+                formats = arguments[0];
+                time = undefined;
+            }
+        }
+        // We want to compare the start of today, vs this.
+        // Getting start-of-today depends on whether we're local/utc/offset or not.
+        var now = time || createLocal(),
+            sod = cloneWithOffset(now, this).startOf('day'),
+            format = hooks.calendarFormat(this, sod) || 'sameElse',
+            output =
+                formats &&
+                (isFunction(formats[format])
+                    ? formats[format].call(this, now)
+                    : formats[format]);
+
+        return this.format(
+            output || this.localeData().calendar(format, this, createLocal(now))
+        );
+    }
+
+    function clone() {
+        return new Moment(this);
+    }
+
+    function isAfter(input, units) {
+        var localInput = isMoment(input) ? input : createLocal(input);
+        if (!(this.isValid() && localInput.isValid())) {
+            return false;
+        }
+        units = normalizeUnits(units) || 'millisecond';
+        if (units === 'millisecond') {
+            return this.valueOf() > localInput.valueOf();
+        } else {
+            return localInput.valueOf() < this.clone().startOf(units).valueOf();
+        }
+    }
+
+    function isBefore(input, units) {
+        var localInput = isMoment(input) ? input : createLocal(input);
+        if (!(this.isValid() && localInput.isValid())) {
+            return false;
+        }
+        units = normalizeUnits(units) || 'millisecond';
+        if (units === 'millisecond') {
+            return this.valueOf() < localInput.valueOf();
+        } else {
+            return this.clone().endOf(units).valueOf() < localInput.valueOf();
+        }
+    }
+
+    function isBetween(from, to, units, inclusivity) {
+        var localFrom = isMoment(from) ? from : createLocal(from),
+            localTo = isMoment(to) ? to : createLocal(to);
+        if (!(this.isValid() && localFrom.isValid() && localTo.isValid())) {
+            return false;
+        }
+        inclusivity = inclusivity || '()';
+        return (
+            (inclusivity[0] === '('
+                ? this.isAfter(localFrom, units)
+                : !this.isBefore(localFrom, units)) &&
+            (inclusivity[1] === ')'
+                ? this.isBefore(localTo, units)
+                : !this.isAfter(localTo, units))
+        );
+    }
+
+    function isSame(input, units) {
+        var localInput = isMoment(input) ? input : createLocal(input),
+            inputMs;
+        if (!(this.isValid() && localInput.isValid())) {
+            return false;
+        }
+        units = normalizeUnits(units) || 'millisecond';
+        if (units === 'millisecond') {
+            return this.valueOf() === localInput.valueOf();
+        } else {
+            inputMs = localInput.valueOf();
+            return (
+                this.clone().startOf(units).valueOf() <= inputMs &&
+                inputMs <= this.clone().endOf(units).valueOf()
+            );
+        }
+    }
+
+    function isSameOrAfter(input, units) {
+        return this.isSame(input, units) || this.isAfter(input, units);
+    }
+
+    function isSameOrBefore(input, units) {
+        return this.isSame(input, units) || this.isBefore(input, units);
+    }
+
+    function diff(input, units, asFloat) {
+        var that, zoneDelta, output;
+
+        if (!this.isValid()) {
+            return NaN;
+        }
+
+        that = cloneWithOffset(input, this);
+
+        if (!that.isValid()) {
+            return NaN;
+        }
+
+        zoneDelta = (that.utcOffset() - this.utcOffset()) * 6e4;
+
+        units = normalizeUnits(units);
+
+        switch (units) {
+            case 'year':
+                output = monthDiff(this, that) / 12;
+                break;
+            case 'month':
+                output = monthDiff(this, that);
+                break;
+            case 'quarter':
+                output = monthDiff(this, that) / 3;
+                break;
+            case 'second':
+                output = (this - that) / 1e3;
+                break; // 1000
+            case 'minute':
+                output = (this - that) / 6e4;
+                break; // 1000 * 60
+            case 'hour':
+                output = (this - that) / 36e5;
+                break; // 1000 * 60 * 60
+            case 'day':
+                output = (this - that - zoneDelta) / 864e5;
+                break; // 1000 * 60 * 60 * 24, negate dst
+            case 'week':
+                output = (this - that - zoneDelta) / 6048e5;
+                break; // 1000 * 60 * 60 * 24 * 7, negate dst
+            default:
+                output = this - that;
+        }
+
+        return asFloat ? output : absFloor(output);
+    }
+
+    function monthDiff(a, b) {
+        if (a.date() < b.date()) {
+            // end-of-month calculations work correct when the start month has more
+            // days than the end month.
+            return -monthDiff(b, a);
+        }
+        // difference in months
+        var wholeMonthDiff = (b.year() - a.year()) * 12 + (b.month() - a.month()),
+            // b is in (anchor - 1 month, anchor + 1 month)
+            anchor = a.clone().add(wholeMonthDiff, 'months'),
+            anchor2,
+            adjust;
+
+        if (b - anchor < 0) {
+            anchor2 = a.clone().add(wholeMonthDiff - 1, 'months');
+            // linear across the month
+            adjust = (b - anchor) / (anchor - anchor2);
+        } else {
+            anchor2 = a.clone().add(wholeMonthDiff + 1, 'months');
+            // linear across the month
+            adjust = (b - anchor) / (anchor2 - anchor);
+        }
+
+        //check for negative zero, return zero if negative zero
+        return -(wholeMonthDiff + adjust) || 0;
+    }
+
+    hooks.defaultFormat = 'YYYY-MM-DDTHH:mm:ssZ';
+    hooks.defaultFormatUtc = 'YYYY-MM-DDTHH:mm:ss[Z]';
+
+    function toString() {
+        return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ');
+    }
+
+    function toISOString(keepOffset) {
+        if (!this.isValid()) {
+            return null;
+        }
+        var utc = keepOffset !== true,
+            m = utc ? this.clone().utc() : this;
+        if (m.year() < 0 || m.year() > 9999) {
+            return formatMoment(
+                m,
+                utc
+                    ? 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]'
+                    : 'YYYYYY-MM-DD[T]HH:mm:ss.SSSZ'
+            );
+        }
+        if (isFunction(Date.prototype.toISOString)) {
+            // native implementation is ~50x faster, use it when we can
+            if (utc) {
+                return this.toDate().toISOString();
+            } else {
+                return new Date(this.valueOf() + this.utcOffset() * 60 * 1000)
+                    .toISOString()
+                    .replace('Z', formatMoment(m, 'Z'));
+            }
+        }
+        return formatMoment(
+            m,
+            utc ? 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYY-MM-DD[T]HH:mm:ss.SSSZ'
+        );
+    }
+
+    /**
+     * Return a human readable representation of a moment that can
+     * also be evaluated to get a new moment which is the same
+     *
+     * @link https://nodejs.org/dist/latest/docs/api/util.html#util_custom_inspect_function_on_objects
+     */
+    function inspect() {
+        if (!this.isValid()) {
+            return 'moment.invalid(/* ' + this._i + ' */)';
+        }
+        var func = 'moment',
+            zone = '',
+            prefix,
+            year,
+            datetime,
+            suffix;
+        if (!this.isLocal()) {
+            func = this.utcOffset() === 0 ? 'moment.utc' : 'moment.parseZone';
+            zone = 'Z';
+        }
+        prefix = '[' + func + '("]';
+        year = 0 <= this.year() && this.year() <= 9999 ? 'YYYY' : 'YYYYYY';
+        datetime = '-MM-DD[T]HH:mm:ss.SSS';
+        suffix = zone + '[")]';
+
+        return this.format(prefix + year + datetime + suffix);
+    }
+
+    function format(inputString) {
+        if (!inputString) {
+            inputString = this.isUtc()
+                ? hooks.defaultFormatUtc
+                : hooks.defaultFormat;
+        }
+        var output = formatMoment(this, inputString);
+        return this.localeData().postformat(output);
+    }
+
+    function from(time, withoutSuffix) {
+        if (
+            this.isValid() &&
+            ((isMoment(time) && time.isValid()) || createLocal(time).isValid())
+        ) {
+            return createDuration({ to: this, from: time })
+                .locale(this.locale())
+                .humanize(!withoutSuffix);
+        } else {
+            return this.localeData().invalidDate();
+        }
+    }
+
+    function fromNow(withoutSuffix) {
+        return this.from(createLocal(), withoutSuffix);
+    }
+
+    function to(time, withoutSuffix) {
+        if (
+            this.isValid() &&
+            ((isMoment(time) && time.isValid()) || createLocal(time).isValid())
+        ) {
+            return createDuration({ from: this, to: time })
+                .locale(this.locale())
+                .humanize(!withoutSuffix);
+        } else {
+            return this.localeData().invalidDate();
+        }
+    }
+
+    function toNow(withoutSuffix) {
+        return this.to(createLocal(), withoutSuffix);
+    }
+
+    // If passed a locale key, it will set the locale for this
+    // instance.  Otherwise, it will return the locale configuration
+    // variables for this instance.
+    function locale(key) {
+        var newLocaleData;
+
+        if (key === undefined) {
+            return this._locale._abbr;
+        } else {
+            newLocaleData = getLocale(key);
+            if (newLocaleData != null) {
+                this._locale = newLocaleData;
+            }
+            return this;
+        }
+    }
+
+    var lang = deprecate(
+        'moment().lang() is deprecated. Instead, use moment().localeData() to get the language configuration. Use moment().locale() to change languages.',
+        function (key) {
+            if (key === undefined) {
+                return this.localeData();
+            } else {
+                return this.locale(key);
+            }
+        }
+    );
+
+    function localeData() {
+        return this._locale;
+    }
+
+    var MS_PER_SECOND = 1000,
+        MS_PER_MINUTE = 60 * MS_PER_SECOND,
+        MS_PER_HOUR = 60 * MS_PER_MINUTE,
+        MS_PER_400_YEARS = (365 * 400 + 97) * 24 * MS_PER_HOUR;
+
+    // actual modulo - handles negative numbers (for dates before 1970):
+    function mod$1(dividend, divisor) {
+        return ((dividend % divisor) + divisor) % divisor;
+    }
+
+    function localStartOfDate(y, m, d) {
+        // the date constructor remaps years 0-99 to 1900-1999
+        if (y < 100 && y >= 0) {
+            // preserve leap years using a full 400 year cycle, then reset
+            return new Date(y + 400, m, d) - MS_PER_400_YEARS;
+        } else {
+            return new Date(y, m, d).valueOf();
+        }
+    }
+
+    function utcStartOfDate(y, m, d) {
+        // Date.UTC remaps years 0-99 to 1900-1999
+        if (y < 100 && y >= 0) {
+            // preserve leap years using a full 400 year cycle, then reset
+            return Date.UTC(y + 400, m, d) - MS_PER_400_YEARS;
+        } else {
+            return Date.UTC(y, m, d);
+        }
+    }
+
+    function startOf(units) {
+        var time, startOfDate;
+        units = normalizeUnits(units);
+        if (units === undefined || units === 'millisecond' || !this.isValid()) {
+            return this;
+        }
+
+        startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;
+
+        switch (units) {
+            case 'year':
+                time = startOfDate(this.year(), 0, 1);
+                break;
+            case 'quarter':
+                time = startOfDate(
+                    this.year(),
+                    this.month() - (this.month() % 3),
+                    1
+                );
+                break;
+            case 'month':
+                time = startOfDate(this.year(), this.month(), 1);
+                break;
+            case 'week':
+                time = startOfDate(
+                    this.year(),
+                    this.month(),
+                    this.date() - this.weekday()
+                );
+                break;
+            case 'isoWeek':
+                time = startOfDate(
+                    this.year(),
+                    this.month(),
+                    this.date() - (this.isoWeekday() - 1)
+                );
+                break;
+            case 'day':
+            case 'date':
+                time = startOfDate(this.year(), this.month(), this.date());
+                break;
+            case 'hour':
+                time = this._d.valueOf();
+                time -= mod$1(
+                    time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE),
+                    MS_PER_HOUR
+                );
+                break;
+            case 'minute':
+                time = this._d.valueOf();
+                time -= mod$1(time, MS_PER_MINUTE);
+                break;
+            case 'second':
+                time = this._d.valueOf();
+                time -= mod$1(time, MS_PER_SECOND);
+                break;
+        }
+
+        this._d.setTime(time);
+        hooks.updateOffset(this, true);
+        return this;
+    }
+
+    function endOf(units) {
+        var time, startOfDate;
+        units = normalizeUnits(units);
+        if (units === undefined || units === 'millisecond' || !this.isValid()) {
+            return this;
+        }
+
+        startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;
+
+        switch (units) {
+            case 'year':
+                time = startOfDate(this.year() + 1, 0, 1) - 1;
+                break;
+            case 'quarter':
+                time =
+                    startOfDate(
+                        this.year(),
+                        this.month() - (this.month() % 3) + 3,
+                        1
+                    ) - 1;
+                break;
+            case 'month':
+                time = startOfDate(this.year(), this.month() + 1, 1) - 1;
+                break;
+            case 'week':
+                time =
+                    startOfDate(
+                        this.year(),
+                        this.month(),
+                        this.date() - this.weekday() + 7
+                    ) - 1;
+                break;
+            case 'isoWeek':
+                time =
+                    startOfDate(
+                        this.year(),
+                        this.month(),
+                        this.date() - (this.isoWeekday() - 1) + 7
+                    ) - 1;
+                break;
+            case 'day':
+            case 'date':
+                time = startOfDate(this.year(), this.month(), this.date() + 1) - 1;
+                break;
+            case 'hour':
+                time = this._d.valueOf();
+                time +=
+                    MS_PER_HOUR -
+                    mod$1(
+                        time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE),
+                        MS_PER_HOUR
+                    ) -
+                    1;
+                break;
+            case 'minute':
+                time = this._d.valueOf();
+                time += MS_PER_MINUTE - mod$1(time, MS_PER_MINUTE) - 1;
+                break;
+            case 'second':
+                time = this._d.valueOf();
+                time += MS_PER_SECOND - mod$1(time, MS_PER_SECOND) - 1;
+                break;
+        }
+
+        this._d.setTime(time);
+        hooks.updateOffset(this, true);
+        return this;
+    }
+
+    function valueOf() {
+        return this._d.valueOf() - (this._offset || 0) * 60000;
+    }
+
+    function unix() {
+        return Math.floor(this.valueOf() / 1000);
+    }
+
+    function toDate() {
+        return new Date(this.valueOf());
+    }
+
+    function toArray() {
+        var m = this;
+        return [
+            m.year(),
+            m.month(),
+            m.date(),
+            m.hour(),
+            m.minute(),
+            m.second(),
+            m.millisecond(),
+        ];
+    }
+
+    function toObject() {
+        var m = this;
+        return {
+            years: m.year(),
+            months: m.month(),
+            date: m.date(),
+            hours: m.hours(),
+            minutes: m.minutes(),
+            seconds: m.seconds(),
+            milliseconds: m.milliseconds(),
+        };
+    }
+
+    function toJSON() {
+        // new Date(NaN).toJSON() === null
+        return this.isValid() ? this.toISOString() : null;
+    }
+
+    function isValid$2() {
+        return isValid(this);
+    }
+
+    function parsingFlags() {
+        return extend({}, getParsingFlags(this));
+    }
+
+    function invalidAt() {
+        return getParsingFlags(this).overflow;
+    }
+
+    function creationData() {
+        return {
+            input: this._i,
+            format: this._f,
+            locale: this._locale,
+            isUTC: this._isUTC,
+            strict: this._strict,
+        };
+    }
+
+    addFormatToken('N', 0, 0, 'eraAbbr');
+    addFormatToken('NN', 0, 0, 'eraAbbr');
+    addFormatToken('NNN', 0, 0, 'eraAbbr');
+    addFormatToken('NNNN', 0, 0, 'eraName');
+    addFormatToken('NNNNN', 0, 0, 'eraNarrow');
+
+    addFormatToken('y', ['y', 1], 'yo', 'eraYear');
+    addFormatToken('y', ['yy', 2], 0, 'eraYear');
+    addFormatToken('y', ['yyy', 3], 0, 'eraYear');
+    addFormatToken('y', ['yyyy', 4], 0, 'eraYear');
+
+    addRegexToken('N', matchEraAbbr);
+    addRegexToken('NN', matchEraAbbr);
+    addRegexToken('NNN', matchEraAbbr);
+    addRegexToken('NNNN', matchEraName);
+    addRegexToken('NNNNN', matchEraNarrow);
+
+    addParseToken(
+        ['N', 'NN', 'NNN', 'NNNN', 'NNNNN'],
+        function (input, array, config, token) {
+            var era = config._locale.erasParse(input, token, config._strict);
+            if (era) {
+                getParsingFlags(config).era = era;
+            } else {
+                getParsingFlags(config).invalidEra = input;
+            }
+        }
+    );
+
+    addRegexToken('y', matchUnsigned);
+    addRegexToken('yy', matchUnsigned);
+    addRegexToken('yyy', matchUnsigned);
+    addRegexToken('yyyy', matchUnsigned);
+    addRegexToken('yo', matchEraYearOrdinal);
+
+    addParseToken(['y', 'yy', 'yyy', 'yyyy'], YEAR);
+    addParseToken(['yo'], function (input, array, config, token) {
+        var match;
+        if (config._locale._eraYearOrdinalRegex) {
+            match = input.match(config._locale._eraYearOrdinalRegex);
+        }
+
+        if (config._locale.eraYearOrdinalParse) {
+            array[YEAR] = config._locale.eraYearOrdinalParse(input, match);
+        } else {
+            array[YEAR] = parseInt(input, 10);
+        }
+    });
+
+    function localeEras(m, format) {
+        var i,
+            l,
+            date,
+            eras = this._eras || getLocale('en')._eras;
+        for (i = 0, l = eras.length; i < l; ++i) {
+            switch (typeof eras[i].since) {
+                case 'string':
+                    // truncate time
+                    date = hooks(eras[i].since).startOf('day');
+                    eras[i].since = date.valueOf();
+                    break;
+            }
+
+            switch (typeof eras[i].until) {
+                case 'undefined':
+                    eras[i].until = +Infinity;
+                    break;
+                case 'string':
+                    // truncate time
+                    date = hooks(eras[i].until).startOf('day').valueOf();
+                    eras[i].until = date.valueOf();
+                    break;
+            }
+        }
+        return eras;
+    }
+
+    function localeErasParse(eraName, format, strict) {
+        var i,
+            l,
+            eras = this.eras(),
+            name,
+            abbr,
+            narrow;
+        eraName = eraName.toUpperCase();
+
+        for (i = 0, l = eras.length; i < l; ++i) {
+            name = eras[i].name.toUpperCase();
+            abbr = eras[i].abbr.toUpperCase();
+            narrow = eras[i].narrow.toUpperCase();
+
+            if (strict) {
+                switch (format) {
+                    case 'N':
+                    case 'NN':
+                    case 'NNN':
+                        if (abbr === eraName) {
+                            return eras[i];
+                        }
+                        break;
+
+                    case 'NNNN':
+                        if (name === eraName) {
+                            return eras[i];
+                        }
+                        break;
+
+                    case 'NNNNN':
+                        if (narrow === eraName) {
+                            return eras[i];
+                        }
+                        break;
+                }
+            } else if ([name, abbr, narrow].indexOf(eraName) >= 0) {
+                return eras[i];
+            }
+        }
+    }
+
+    function localeErasConvertYear(era, year) {
+        var dir = era.since <= era.until ? +1 : -1;
+        if (year === undefined) {
+            return hooks(era.since).year();
+        } else {
+            return hooks(era.since).year() + (year - era.offset) * dir;
+        }
+    }
+
+    function getEraName() {
+        var i,
+            l,
+            val,
+            eras = this.localeData().eras();
+        for (i = 0, l = eras.length; i < l; ++i) {
+            // truncate time
+            val = this.clone().startOf('day').valueOf();
+
+            if (eras[i].since <= val && val <= eras[i].until) {
+                return eras[i].name;
+            }
+            if (eras[i].until <= val && val <= eras[i].since) {
+                return eras[i].name;
+            }
+        }
+
+        return '';
+    }
+
+    function getEraNarrow() {
+        var i,
+            l,
+            val,
+            eras = this.localeData().eras();
+        for (i = 0, l = eras.length; i < l; ++i) {
+            // truncate time
+            val = this.clone().startOf('day').valueOf();
+
+            if (eras[i].since <= val && val <= eras[i].until) {
+                return eras[i].narrow;
+            }
+            if (eras[i].until <= val && val <= eras[i].since) {
+                return eras[i].narrow;
+            }
+        }
+
+        return '';
+    }
+
+    function getEraAbbr() {
+        var i,
+            l,
+            val,
+            eras = this.localeData().eras();
+        for (i = 0, l = eras.length; i < l; ++i) {
+            // truncate time
+            val = this.clone().startOf('day').valueOf();
+
+            if (eras[i].since <= val && val <= eras[i].until) {
+                return eras[i].abbr;
+            }
+            if (eras[i].until <= val && val <= eras[i].since) {
+                return eras[i].abbr;
+            }
+        }
+
+        return '';
+    }
+
+    function getEraYear() {
+        var i,
+            l,
+            dir,
+            val,
+            eras = this.localeData().eras();
+        for (i = 0, l = eras.length; i < l; ++i) {
+            dir = eras[i].since <= eras[i].until ? +1 : -1;
+
+            // truncate time
+            val = this.clone().startOf('day').valueOf();
+
+            if (
+                (eras[i].since <= val && val <= eras[i].until) ||
+                (eras[i].until <= val && val <= eras[i].since)
+            ) {
+                return (
+                    (this.year() - hooks(eras[i].since).year()) * dir +
+                    eras[i].offset
+                );
+            }
+        }
+
+        return this.year();
+    }
+
+    function erasNameRegex(isStrict) {
+        if (!hasOwnProp(this, '_erasNameRegex')) {
+            computeErasParse.call(this);
+        }
+        return isStrict ? this._erasNameRegex : this._erasRegex;
+    }
+
+    function erasAbbrRegex(isStrict) {
+        if (!hasOwnProp(this, '_erasAbbrRegex')) {
+            computeErasParse.call(this);
+        }
+        return isStrict ? this._erasAbbrRegex : this._erasRegex;
+    }
+
+    function erasNarrowRegex(isStrict) {
+        if (!hasOwnProp(this, '_erasNarrowRegex')) {
+            computeErasParse.call(this);
+        }
+        return isStrict ? this._erasNarrowRegex : this._erasRegex;
+    }
+
+    function matchEraAbbr(isStrict, locale) {
+        return locale.erasAbbrRegex(isStrict);
+    }
+
+    function matchEraName(isStrict, locale) {
+        return locale.erasNameRegex(isStrict);
+    }
+
+    function matchEraNarrow(isStrict, locale) {
+        return locale.erasNarrowRegex(isStrict);
+    }
+
+    function matchEraYearOrdinal(isStrict, locale) {
+        return locale._eraYearOrdinalRegex || matchUnsigned;
+    }
+
+    function computeErasParse() {
+        var abbrPieces = [],
+            namePieces = [],
+            narrowPieces = [],
+            mixedPieces = [],
+            i,
+            l,
+            erasName,
+            erasAbbr,
+            erasNarrow,
+            eras = this.eras();
+
+        for (i = 0, l = eras.length; i < l; ++i) {
+            erasName = regexEscape(eras[i].name);
+            erasAbbr = regexEscape(eras[i].abbr);
+            erasNarrow = regexEscape(eras[i].narrow);
+
+            namePieces.push(erasName);
+            abbrPieces.push(erasAbbr);
+            narrowPieces.push(erasNarrow);
+            mixedPieces.push(erasName);
+            mixedPieces.push(erasAbbr);
+            mixedPieces.push(erasNarrow);
+        }
+
+        this._erasRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
+        this._erasNameRegex = new RegExp('^(' + namePieces.join('|') + ')', 'i');
+        this._erasAbbrRegex = new RegExp('^(' + abbrPieces.join('|') + ')', 'i');
+        this._erasNarrowRegex = new RegExp(
+            '^(' + narrowPieces.join('|') + ')',
+            'i'
+        );
+    }
+
+    // FORMATTING
+
+    addFormatToken(0, ['gg', 2], 0, function () {
+        return this.weekYear() % 100;
+    });
+
+    addFormatToken(0, ['GG', 2], 0, function () {
+        return this.isoWeekYear() % 100;
+    });
+
+    function addWeekYearFormatToken(token, getter) {
+        addFormatToken(0, [token, token.length], 0, getter);
+    }
+
+    addWeekYearFormatToken('gggg', 'weekYear');
+    addWeekYearFormatToken('ggggg', 'weekYear');
+    addWeekYearFormatToken('GGGG', 'isoWeekYear');
+    addWeekYearFormatToken('GGGGG', 'isoWeekYear');
+
+    // ALIASES
+
+    // PARSING
+
+    addRegexToken('G', matchSigned);
+    addRegexToken('g', matchSigned);
+    addRegexToken('GG', match1to2, match2);
+    addRegexToken('gg', match1to2, match2);
+    addRegexToken('GGGG', match1to4, match4);
+    addRegexToken('gggg', match1to4, match4);
+    addRegexToken('GGGGG', match1to6, match6);
+    addRegexToken('ggggg', match1to6, match6);
+
+    addWeekParseToken(
+        ['gggg', 'ggggg', 'GGGG', 'GGGGG'],
+        function (input, week, config, token) {
+            week[token.substr(0, 2)] = toInt(input);
+        }
+    );
+
+    addWeekParseToken(['gg', 'GG'], function (input, week, config, token) {
+        week[token] = hooks.parseTwoDigitYear(input);
+    });
+
+    // MOMENTS
+
+    function getSetWeekYear(input) {
+        return getSetWeekYearHelper.call(
+            this,
+            input,
+            this.week(),
+            this.weekday() + this.localeData()._week.dow,
+            this.localeData()._week.dow,
+            this.localeData()._week.doy
+        );
+    }
+
+    function getSetISOWeekYear(input) {
+        return getSetWeekYearHelper.call(
+            this,
+            input,
+            this.isoWeek(),
+            this.isoWeekday(),
+            1,
+            4
+        );
+    }
+
+    function getISOWeeksInYear() {
+        return weeksInYear(this.year(), 1, 4);
+    }
+
+    function getISOWeeksInISOWeekYear() {
+        return weeksInYear(this.isoWeekYear(), 1, 4);
+    }
+
+    function getWeeksInYear() {
+        var weekInfo = this.localeData()._week;
+        return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy);
+    }
+
+    function getWeeksInWeekYear() {
+        var weekInfo = this.localeData()._week;
+        return weeksInYear(this.weekYear(), weekInfo.dow, weekInfo.doy);
+    }
+
+    function getSetWeekYearHelper(input, week, weekday, dow, doy) {
+        var weeksTarget;
+        if (input == null) {
+            return weekOfYear(this, dow, doy).year;
+        } else {
+            weeksTarget = weeksInYear(input, dow, doy);
+            if (week > weeksTarget) {
+                week = weeksTarget;
+            }
+            return setWeekAll.call(this, input, week, weekday, dow, doy);
+        }
+    }
+
+    function setWeekAll(weekYear, week, weekday, dow, doy) {
+        var dayOfYearData = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy),
+            date = createUTCDate(dayOfYearData.year, 0, dayOfYearData.dayOfYear);
+
+        this.year(date.getUTCFullYear());
+        this.month(date.getUTCMonth());
+        this.date(date.getUTCDate());
+        return this;
+    }
+
+    // FORMATTING
+
+    addFormatToken('Q', 0, 'Qo', 'quarter');
+
+    // PARSING
+
+    addRegexToken('Q', match1);
+    addParseToken('Q', function (input, array) {
+        array[MONTH] = (toInt(input) - 1) * 3;
+    });
+
+    // MOMENTS
+
+    function getSetQuarter(input) {
+        return input == null
+            ? Math.ceil((this.month() + 1) / 3)
+            : this.month((input - 1) * 3 + (this.month() % 3));
+    }
+
+    // FORMATTING
+
+    addFormatToken('D', ['DD', 2], 'Do', 'date');
+
+    // PARSING
+
+    addRegexToken('D', match1to2, match1to2NoLeadingZero);
+    addRegexToken('DD', match1to2, match2);
+    addRegexToken('Do', function (isStrict, locale) {
+        // TODO: Remove "ordinalParse" fallback in next major release.
+        return isStrict
+            ? locale._dayOfMonthOrdinalParse || locale._ordinalParse
+            : locale._dayOfMonthOrdinalParseLenient;
+    });
+
+    addParseToken(['D', 'DD'], DATE);
+    addParseToken('Do', function (input, array) {
+        array[DATE] = toInt(input.match(match1to2)[0]);
+    });
+
+    // MOMENTS
+
+    var getSetDayOfMonth = makeGetSet('Date', true);
+
+    // FORMATTING
+
+    addFormatToken('DDD', ['DDDD', 3], 'DDDo', 'dayOfYear');
+
+    // PARSING
+
+    addRegexToken('DDD', match1to3);
+    addRegexToken('DDDD', match3);
+    addParseToken(['DDD', 'DDDD'], function (input, array, config) {
+        config._dayOfYear = toInt(input);
+    });
+
+    // HELPERS
+
+    // MOMENTS
+
+    function getSetDayOfYear(input) {
+        var dayOfYear =
+            Math.round(
+                (this.clone().startOf('day') - this.clone().startOf('year')) / 864e5
+            ) + 1;
+        return input == null ? dayOfYear : this.add(input - dayOfYear, 'd');
+    }
+
+    // FORMATTING
+
+    addFormatToken('m', ['mm', 2], 0, 'minute');
+
+    // PARSING
+
+    addRegexToken('m', match1to2, match1to2HasZero);
+    addRegexToken('mm', match1to2, match2);
+    addParseToken(['m', 'mm'], MINUTE);
+
+    // MOMENTS
+
+    var getSetMinute = makeGetSet('Minutes', false);
+
+    // FORMATTING
+
+    addFormatToken('s', ['ss', 2], 0, 'second');
+
+    // PARSING
+
+    addRegexToken('s', match1to2, match1to2HasZero);
+    addRegexToken('ss', match1to2, match2);
+    addParseToken(['s', 'ss'], SECOND);
+
+    // MOMENTS
+
+    var getSetSecond = makeGetSet('Seconds', false);
+
+    // FORMATTING
+
+    addFormatToken('S', 0, 0, function () {
+        return ~~(this.millisecond() / 100);
+    });
+
+    addFormatToken(0, ['SS', 2], 0, function () {
+        return ~~(this.millisecond() / 10);
+    });
+
+    addFormatToken(0, ['SSS', 3], 0, 'millisecond');
+    addFormatToken(0, ['SSSS', 4], 0, function () {
+        return this.millisecond() * 10;
+    });
+    addFormatToken(0, ['SSSSS', 5], 0, function () {
+        return this.millisecond() * 100;
+    });
+    addFormatToken(0, ['SSSSSS', 6], 0, function () {
+        return this.millisecond() * 1000;
+    });
+    addFormatToken(0, ['SSSSSSS', 7], 0, function () {
+        return this.millisecond() * 10000;
+    });
+    addFormatToken(0, ['SSSSSSSS', 8], 0, function () {
+        return this.millisecond() * 100000;
+    });
+    addFormatToken(0, ['SSSSSSSSS', 9], 0, function () {
+        return this.millisecond() * 1000000;
+    });
+
+    // PARSING
+
+    addRegexToken('S', match1to3, match1);
+    addRegexToken('SS', match1to3, match2);
+    addRegexToken('SSS', match1to3, match3);
+
+    var token, getSetMillisecond;
+    for (token = 'SSSS'; token.length <= 9; token += 'S') {
+        addRegexToken(token, matchUnsigned);
+    }
+
+    function parseMs(input, array) {
+        array[MILLISECOND] = toInt(('0.' + input) * 1000);
+    }
+
+    for (token = 'S'; token.length <= 9; token += 'S') {
+        addParseToken(token, parseMs);
+    }
+
+    getSetMillisecond = makeGetSet('Milliseconds', false);
+
+    // FORMATTING
+
+    addFormatToken('z', 0, 0, 'zoneAbbr');
+    addFormatToken('zz', 0, 0, 'zoneName');
+
+    // MOMENTS
+
+    function getZoneAbbr() {
+        return this._isUTC ? 'UTC' : '';
+    }
+
+    function getZoneName() {
+        return this._isUTC ? 'Coordinated Universal Time' : '';
+    }
+
+    var proto = Moment.prototype;
+
+    proto.add = add;
+    proto.calendar = calendar$1;
+    proto.clone = clone;
+    proto.diff = diff;
+    proto.endOf = endOf;
+    proto.format = format;
+    proto.from = from;
+    proto.fromNow = fromNow;
+    proto.to = to;
+    proto.toNow = toNow;
+    proto.get = stringGet;
+    proto.invalidAt = invalidAt;
+    proto.isAfter = isAfter;
+    proto.isBefore = isBefore;
+    proto.isBetween = isBetween;
+    proto.isSame = isSame;
+    proto.isSameOrAfter = isSameOrAfter;
+    proto.isSameOrBefore = isSameOrBefore;
+    proto.isValid = isValid$2;
+    proto.lang = lang;
+    proto.locale = locale;
+    proto.localeData = localeData;
+    proto.max = prototypeMax;
+    proto.min = prototypeMin;
+    proto.parsingFlags = parsingFlags;
+    proto.set = stringSet;
+    proto.startOf = startOf;
+    proto.subtract = subtract;
+    proto.toArray = toArray;
+    proto.toObject = toObject;
+    proto.toDate = toDate;
+    proto.toISOString = toISOString;
+    proto.inspect = inspect;
+    if (typeof Symbol !== 'undefined' && Symbol.for != null) {
+        proto[Symbol.for('nodejs.util.inspect.custom')] = function () {
+            return 'Moment<' + this.format() + '>';
+        };
+    }
+    proto.toJSON = toJSON;
+    proto.toString = toString;
+    proto.unix = unix;
+    proto.valueOf = valueOf;
+    proto.creationData = creationData;
+    proto.eraName = getEraName;
+    proto.eraNarrow = getEraNarrow;
+    proto.eraAbbr = getEraAbbr;
+    proto.eraYear = getEraYear;
+    proto.year = getSetYear;
+    proto.isLeapYear = getIsLeapYear;
+    proto.weekYear = getSetWeekYear;
+    proto.isoWeekYear = getSetISOWeekYear;
+    proto.quarter = proto.quarters = getSetQuarter;
+    proto.month = getSetMonth;
+    proto.daysInMonth = getDaysInMonth;
+    proto.week = proto.weeks = getSetWeek;
+    proto.isoWeek = proto.isoWeeks = getSetISOWeek;
+    proto.weeksInYear = getWeeksInYear;
+    proto.weeksInWeekYear = getWeeksInWeekYear;
+    proto.isoWeeksInYear = getISOWeeksInYear;
+    proto.isoWeeksInISOWeekYear = getISOWeeksInISOWeekYear;
+    proto.date = getSetDayOfMonth;
+    proto.day = proto.days = getSetDayOfWeek;
+    proto.weekday = getSetLocaleDayOfWeek;
+    proto.isoWeekday = getSetISODayOfWeek;
+    proto.dayOfYear = getSetDayOfYear;
+    proto.hour = proto.hours = getSetHour;
+    proto.minute = proto.minutes = getSetMinute;
+    proto.second = proto.seconds = getSetSecond;
+    proto.millisecond = proto.milliseconds = getSetMillisecond;
+    proto.utcOffset = getSetOffset;
+    proto.utc = setOffsetToUTC;
+    proto.local = setOffsetToLocal;
+    proto.parseZone = setOffsetToParsedOffset;
+    proto.hasAlignedHourOffset = hasAlignedHourOffset;
+    proto.isDST = isDaylightSavingTime;
+    proto.isLocal = isLocal;
+    proto.isUtcOffset = isUtcOffset;
+    proto.isUtc = isUtc;
+    proto.isUTC = isUtc;
+    proto.zoneAbbr = getZoneAbbr;
+    proto.zoneName = getZoneName;
+    proto.dates = deprecate(
+        'dates accessor is deprecated. Use date instead.',
+        getSetDayOfMonth
+    );
+    proto.months = deprecate(
+        'months accessor is deprecated. Use month instead',
+        getSetMonth
+    );
+    proto.years = deprecate(
+        'years accessor is deprecated. Use year instead',
+        getSetYear
+    );
+    proto.zone = deprecate(
+        'moment().zone is deprecated, use moment().utcOffset instead. http://momentjs.com/guides/#/warnings/zone/',
+        getSetZone
+    );
+    proto.isDSTShifted = deprecate(
+        'isDSTShifted is deprecated. See http://momentjs.com/guides/#/warnings/dst-shifted/ for more information',
+        isDaylightSavingTimeShifted
+    );
+
+    function createUnix(input) {
+        return createLocal(input * 1000);
+    }
+
+    function createInZone() {
+        return createLocal.apply(null, arguments).parseZone();
+    }
+
+    function preParsePostFormat(string) {
+        return string;
+    }
+
+    var proto$1 = Locale.prototype;
+
+    proto$1.calendar = calendar;
+    proto$1.longDateFormat = longDateFormat;
+    proto$1.invalidDate = invalidDate;
+    proto$1.ordinal = ordinal;
+    proto$1.preparse = preParsePostFormat;
+    proto$1.postformat = preParsePostFormat;
+    proto$1.relativeTime = relativeTime;
+    proto$1.pastFuture = pastFuture;
+    proto$1.set = set;
+    proto$1.eras = localeEras;
+    proto$1.erasParse = localeErasParse;
+    proto$1.erasConvertYear = localeErasConvertYear;
+    proto$1.erasAbbrRegex = erasAbbrRegex;
+    proto$1.erasNameRegex = erasNameRegex;
+    proto$1.erasNarrowRegex = erasNarrowRegex;
+
+    proto$1.months = localeMonths;
+    proto$1.monthsShort = localeMonthsShort;
+    proto$1.monthsParse = localeMonthsParse;
+    proto$1.monthsRegex = monthsRegex;
+    proto$1.monthsShortRegex = monthsShortRegex;
+    proto$1.week = localeWeek;
+    proto$1.firstDayOfYear = localeFirstDayOfYear;
+    proto$1.firstDayOfWeek = localeFirstDayOfWeek;
+
+    proto$1.weekdays = localeWeekdays;
+    proto$1.weekdaysMin = localeWeekdaysMin;
+    proto$1.weekdaysShort = localeWeekdaysShort;
+    proto$1.weekdaysParse = localeWeekdaysParse;
+
+    proto$1.weekdaysRegex = weekdaysRegex;
+    proto$1.weekdaysShortRegex = weekdaysShortRegex;
+    proto$1.weekdaysMinRegex = weekdaysMinRegex;
+
+    proto$1.isPM = localeIsPM;
+    proto$1.meridiem = localeMeridiem;
+
+    function get$1(format, index, field, setter) {
+        var locale = getLocale(),
+            utc = createUTC().set(setter, index);
+        return locale[field](utc, format);
+    }
+
+    function listMonthsImpl(format, index, field) {
+        if (isNumber(format)) {
+            index = format;
+            format = undefined;
+        }
+
+        format = format || '';
+
+        if (index != null) {
+            return get$1(format, index, field, 'month');
+        }
+
+        var i,
+            out = [];
+        for (i = 0; i < 12; i++) {
+            out[i] = get$1(format, i, field, 'month');
+        }
+        return out;
+    }
+
+    // ()
+    // (5)
+    // (fmt, 5)
+    // (fmt)
+    // (true)
+    // (true, 5)
+    // (true, fmt, 5)
+    // (true, fmt)
+    function listWeekdaysImpl(localeSorted, format, index, field) {
+        if (typeof localeSorted === 'boolean') {
+            if (isNumber(format)) {
+                index = format;
+                format = undefined;
+            }
+
+            format = format || '';
+        } else {
+            format = localeSorted;
+            index = format;
+            localeSorted = false;
+
+            if (isNumber(format)) {
+                index = format;
+                format = undefined;
+            }
+
+            format = format || '';
+        }
+
+        var locale = getLocale(),
+            shift = localeSorted ? locale._week.dow : 0,
+            i,
+            out = [];
+
+        if (index != null) {
+            return get$1(format, (index + shift) % 7, field, 'day');
+        }
+
+        for (i = 0; i < 7; i++) {
+            out[i] = get$1(format, (i + shift) % 7, field, 'day');
+        }
+        return out;
+    }
+
+    function listMonths(format, index) {
+        return listMonthsImpl(format, index, 'months');
+    }
+
+    function listMonthsShort(format, index) {
+        return listMonthsImpl(format, index, 'monthsShort');
+    }
+
+    function listWeekdays(localeSorted, format, index) {
+        return listWeekdaysImpl(localeSorted, format, index, 'weekdays');
+    }
+
+    function listWeekdaysShort(localeSorted, format, index) {
+        return listWeekdaysImpl(localeSorted, format, index, 'weekdaysShort');
+    }
+
+    function listWeekdaysMin(localeSorted, format, index) {
+        return listWeekdaysImpl(localeSorted, format, index, 'weekdaysMin');
+    }
+
+    getSetGlobalLocale('en', {
+        eras: [
+            {
+                since: '0001-01-01',
+                until: +Infinity,
+                offset: 1,
+                name: 'Anno Domini',
+                narrow: 'AD',
+                abbr: 'AD',
+            },
+            {
+                since: '0000-12-31',
+                until: -Infinity,
+                offset: 1,
+                name: 'Before Christ',
+                narrow: 'BC',
+                abbr: 'BC',
+            },
+        ],
+        dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    toInt((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+    });
+
+    // Side effect imports
+
+    hooks.lang = deprecate(
+        'moment.lang is deprecated. Use moment.locale instead.',
+        getSetGlobalLocale
+    );
+    hooks.langData = deprecate(
+        'moment.langData is deprecated. Use moment.localeData instead.',
+        getLocale
+    );
+
+    var mathAbs = Math.abs;
+
+    function abs() {
+        var data = this._data;
+
+        this._milliseconds = mathAbs(this._milliseconds);
+        this._days = mathAbs(this._days);
+        this._months = mathAbs(this._months);
+
+        data.milliseconds = mathAbs(data.milliseconds);
+        data.seconds = mathAbs(data.seconds);
+        data.minutes = mathAbs(data.minutes);
+        data.hours = mathAbs(data.hours);
+        data.months = mathAbs(data.months);
+        data.years = mathAbs(data.years);
+
+        return this;
+    }
+
+    function addSubtract$1(duration, input, value, direction) {
+        var other = createDuration(input, value);
+
+        duration._milliseconds += direction * other._milliseconds;
+        duration._days += direction * other._days;
+        duration._months += direction * other._months;
+
+        return duration._bubble();
+    }
+
+    // supports only 2.0-style add(1, 's') or add(duration)
+    function add$1(input, value) {
+        return addSubtract$1(this, input, value, 1);
+    }
+
+    // supports only 2.0-style subtract(1, 's') or subtract(duration)
+    function subtract$1(input, value) {
+        return addSubtract$1(this, input, value, -1);
+    }
+
+    function absCeil(number) {
+        if (number < 0) {
+            return Math.floor(number);
+        } else {
+            return Math.ceil(number);
+        }
+    }
+
+    function bubble() {
+        var milliseconds = this._milliseconds,
+            days = this._days,
+            months = this._months,
+            data = this._data,
+            seconds,
+            minutes,
+            hours,
+            years,
+            monthsFromDays;
+
+        // if we have a mix of positive and negative values, bubble down first
+        // check: https://github.com/moment/moment/issues/2166
+        if (
+            !(
+                (milliseconds >= 0 && days >= 0 && months >= 0) ||
+                (milliseconds <= 0 && days <= 0 && months <= 0)
+            )
+        ) {
+            milliseconds += absCeil(monthsToDays(months) + days) * 864e5;
+            days = 0;
+            months = 0;
+        }
+
+        // The following code bubbles up values, see the tests for
+        // examples of what that means.
+        data.milliseconds = milliseconds % 1000;
+
+        seconds = absFloor(milliseconds / 1000);
+        data.seconds = seconds % 60;
+
+        minutes = absFloor(seconds / 60);
+        data.minutes = minutes % 60;
+
+        hours = absFloor(minutes / 60);
+        data.hours = hours % 24;
+
+        days += absFloor(hours / 24);
+
+        // convert days to months
+        monthsFromDays = absFloor(daysToMonths(days));
+        months += monthsFromDays;
+        days -= absCeil(monthsToDays(monthsFromDays));
+
+        // 12 months -> 1 year
+        years = absFloor(months / 12);
+        months %= 12;
+
+        data.days = days;
+        data.months = months;
+        data.years = years;
+
+        return this;
+    }
+
+    function daysToMonths(days) {
+        // 400 years have 146097 days (taking into account leap year rules)
+        // 400 years have 12 months === 4800
+        return (days * 4800) / 146097;
+    }
+
+    function monthsToDays(months) {
+        // the reverse of daysToMonths
+        return (months * 146097) / 4800;
+    }
+
+    function as(units) {
+        if (!this.isValid()) {
+            return NaN;
+        }
+        var days,
+            months,
+            milliseconds = this._milliseconds;
+
+        units = normalizeUnits(units);
+
+        if (units === 'month' || units === 'quarter' || units === 'year') {
+            days = this._days + milliseconds / 864e5;
+            months = this._months + daysToMonths(days);
+            switch (units) {
+                case 'month':
+                    return months;
+                case 'quarter':
+                    return months / 3;
+                case 'year':
+                    return months / 12;
+            }
+        } else {
+            // handle milliseconds separately because of floating point math errors (issue #1867)
+            days = this._days + Math.round(monthsToDays(this._months));
+            switch (units) {
+                case 'week':
+                    return days / 7 + milliseconds / 6048e5;
+                case 'day':
+                    return days + milliseconds / 864e5;
+                case 'hour':
+                    return days * 24 + milliseconds / 36e5;
+                case 'minute':
+                    return days * 1440 + milliseconds / 6e4;
+                case 'second':
+                    return days * 86400 + milliseconds / 1000;
+                // Math.floor prevents floating point math errors here
+                case 'millisecond':
+                    return Math.floor(days * 864e5) + milliseconds;
+                default:
+                    throw new Error('Unknown unit ' + units);
+            }
+        }
+    }
+
+    function makeAs(alias) {
+        return function () {
+            return this.as(alias);
+        };
+    }
+
+    var asMilliseconds = makeAs('ms'),
+        asSeconds = makeAs('s'),
+        asMinutes = makeAs('m'),
+        asHours = makeAs('h'),
+        asDays = makeAs('d'),
+        asWeeks = makeAs('w'),
+        asMonths = makeAs('M'),
+        asQuarters = makeAs('Q'),
+        asYears = makeAs('y'),
+        valueOf$1 = asMilliseconds;
+
+    function clone$1() {
+        return createDuration(this);
+    }
+
+    function get$2(units) {
+        units = normalizeUnits(units);
+        return this.isValid() ? this[units + 's']() : NaN;
+    }
+
+    function makeGetter(name) {
+        return function () {
+            return this.isValid() ? this._data[name] : NaN;
+        };
+    }
+
+    var milliseconds = makeGetter('milliseconds'),
+        seconds = makeGetter('seconds'),
+        minutes = makeGetter('minutes'),
+        hours = makeGetter('hours'),
+        days = makeGetter('days'),
+        months = makeGetter('months'),
+        years = makeGetter('years');
+
+    function weeks() {
+        return absFloor(this.days() / 7);
+    }
+
+    var round = Math.round,
+        thresholds = {
+            ss: 44, // a few seconds to seconds
+            s: 45, // seconds to minute
+            m: 45, // minutes to hour
+            h: 22, // hours to day
+            d: 26, // days to month/week
+            w: null, // weeks to month
+            M: 11, // months to year
+        };
+
+    // helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize
+    function substituteTimeAgo(string, number, withoutSuffix, isFuture, locale) {
+        return locale.relativeTime(number || 1, !!withoutSuffix, string, isFuture);
+    }
+
+    function relativeTime$1(posNegDuration, withoutSuffix, thresholds, locale) {
+        var duration = createDuration(posNegDuration).abs(),
+            seconds = round(duration.as('s')),
+            minutes = round(duration.as('m')),
+            hours = round(duration.as('h')),
+            days = round(duration.as('d')),
+            months = round(duration.as('M')),
+            weeks = round(duration.as('w')),
+            years = round(duration.as('y')),
+            a =
+                (seconds <= thresholds.ss && ['s', seconds]) ||
+                (seconds < thresholds.s && ['ss', seconds]) ||
+                (minutes <= 1 && ['m']) ||
+                (minutes < thresholds.m && ['mm', minutes]) ||
+                (hours <= 1 && ['h']) ||
+                (hours < thresholds.h && ['hh', hours]) ||
+                (days <= 1 && ['d']) ||
+                (days < thresholds.d && ['dd', days]);
+
+        if (thresholds.w != null) {
+            a =
+                a ||
+                (weeks <= 1 && ['w']) ||
+                (weeks < thresholds.w && ['ww', weeks]);
+        }
+        a = a ||
+            (months <= 1 && ['M']) ||
+            (months < thresholds.M && ['MM', months]) ||
+            (years <= 1 && ['y']) || ['yy', years];
+
+        a[2] = withoutSuffix;
+        a[3] = +posNegDuration > 0;
+        a[4] = locale;
+        return substituteTimeAgo.apply(null, a);
+    }
+
+    // This function allows you to set the rounding function for relative time strings
+    function getSetRelativeTimeRounding(roundingFunction) {
+        if (roundingFunction === undefined) {
+            return round;
+        }
+        if (typeof roundingFunction === 'function') {
+            round = roundingFunction;
+            return true;
+        }
+        return false;
+    }
+
+    // This function allows you to set a threshold for relative time strings
+    function getSetRelativeTimeThreshold(threshold, limit) {
+        if (thresholds[threshold] === undefined) {
+            return false;
+        }
+        if (limit === undefined) {
+            return thresholds[threshold];
+        }
+        thresholds[threshold] = limit;
+        if (threshold === 's') {
+            thresholds.ss = limit - 1;
+        }
+        return true;
+    }
+
+    function humanize(argWithSuffix, argThresholds) {
+        if (!this.isValid()) {
+            return this.localeData().invalidDate();
+        }
+
+        var withSuffix = false,
+            th = thresholds,
+            locale,
+            output;
+
+        if (typeof argWithSuffix === 'object') {
+            argThresholds = argWithSuffix;
+            argWithSuffix = false;
+        }
+        if (typeof argWithSuffix === 'boolean') {
+            withSuffix = argWithSuffix;
+        }
+        if (typeof argThresholds === 'object') {
+            th = Object.assign({}, thresholds, argThresholds);
+            if (argThresholds.s != null && argThresholds.ss == null) {
+                th.ss = argThresholds.s - 1;
+            }
+        }
+
+        locale = this.localeData();
+        output = relativeTime$1(this, !withSuffix, th, locale);
+
+        if (withSuffix) {
+            output = locale.pastFuture(+this, output);
+        }
+
+        return locale.postformat(output);
+    }
+
+    var abs$1 = Math.abs;
+
+    function sign(x) {
+        return (x > 0) - (x < 0) || +x;
+    }
+
+    function toISOString$1() {
+        // for ISO strings we do not use the normal bubbling rules:
+        //  * milliseconds bubble up until they become hours
+        //  * days do not bubble at all
+        //  * months bubble up until they become years
+        // This is because there is no context-free conversion between hours and days
+        // (think of clock changes)
+        // and also not between days and months (28-31 days per month)
+        if (!this.isValid()) {
+            return this.localeData().invalidDate();
+        }
+
+        var seconds = abs$1(this._milliseconds) / 1000,
+            days = abs$1(this._days),
+            months = abs$1(this._months),
+            minutes,
+            hours,
+            years,
+            s,
+            total = this.asSeconds(),
+            totalSign,
+            ymSign,
+            daysSign,
+            hmsSign;
+
+        if (!total) {
+            // this is the same as C#'s (Noda) and python (isodate)...
+            // but not other JS (goog.date)
+            return 'P0D';
+        }
+
+        // 3600 seconds -> 60 minutes -> 1 hour
+        minutes = absFloor(seconds / 60);
+        hours = absFloor(minutes / 60);
+        seconds %= 60;
+        minutes %= 60;
+
+        // 12 months -> 1 year
+        years = absFloor(months / 12);
+        months %= 12;
+
+        // inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js
+        s = seconds ? seconds.toFixed(3).replace(/\.?0+$/, '') : '';
+
+        totalSign = total < 0 ? '-' : '';
+        ymSign = sign(this._months) !== sign(total) ? '-' : '';
+        daysSign = sign(this._days) !== sign(total) ? '-' : '';
+        hmsSign = sign(this._milliseconds) !== sign(total) ? '-' : '';
+
+        return (
+            totalSign +
+            'P' +
+            (years ? ymSign + years + 'Y' : '') +
+            (months ? ymSign + months + 'M' : '') +
+            (days ? daysSign + days + 'D' : '') +
+            (hours || minutes || seconds ? 'T' : '') +
+            (hours ? hmsSign + hours + 'H' : '') +
+            (minutes ? hmsSign + minutes + 'M' : '') +
+            (seconds ? hmsSign + s + 'S' : '')
+        );
+    }
+
+    var proto$2 = Duration.prototype;
+
+    proto$2.isValid = isValid$1;
+    proto$2.abs = abs;
+    proto$2.add = add$1;
+    proto$2.subtract = subtract$1;
+    proto$2.as = as;
+    proto$2.asMilliseconds = asMilliseconds;
+    proto$2.asSeconds = asSeconds;
+    proto$2.asMinutes = asMinutes;
+    proto$2.asHours = asHours;
+    proto$2.asDays = asDays;
+    proto$2.asWeeks = asWeeks;
+    proto$2.asMonths = asMonths;
+    proto$2.asQuarters = asQuarters;
+    proto$2.asYears = asYears;
+    proto$2.valueOf = valueOf$1;
+    proto$2._bubble = bubble;
+    proto$2.clone = clone$1;
+    proto$2.get = get$2;
+    proto$2.milliseconds = milliseconds;
+    proto$2.seconds = seconds;
+    proto$2.minutes = minutes;
+    proto$2.hours = hours;
+    proto$2.days = days;
+    proto$2.weeks = weeks;
+    proto$2.months = months;
+    proto$2.years = years;
+    proto$2.humanize = humanize;
+    proto$2.toISOString = toISOString$1;
+    proto$2.toString = toISOString$1;
+    proto$2.toJSON = toISOString$1;
+    proto$2.locale = locale;
+    proto$2.localeData = localeData;
+
+    proto$2.toIsoString = deprecate(
+        'toIsoString() is deprecated. Please use toISOString() instead (notice the capitals)',
+        toISOString$1
+    );
+    proto$2.lang = lang;
+
+    // FORMATTING
+
+    addFormatToken('X', 0, 0, 'unix');
+    addFormatToken('x', 0, 0, 'valueOf');
+
+    // PARSING
+
+    addRegexToken('x', matchSigned);
+    addRegexToken('X', matchTimestamp);
+    addParseToken('X', function (input, array, config) {
+        config._d = new Date(parseFloat(input) * 1000);
+    });
+    addParseToken('x', function (input, array, config) {
+        config._d = new Date(toInt(input));
+    });
+
+    //! moment.js
+
+    hooks.version = '2.30.1';
+
+    setHookCallback(createLocal);
+
+    hooks.fn = proto;
+    hooks.min = min;
+    hooks.max = max;
+    hooks.now = now;
+    hooks.utc = createUTC;
+    hooks.unix = createUnix;
+    hooks.months = listMonths;
+    hooks.isDate = isDate;
+    hooks.locale = getSetGlobalLocale;
+    hooks.invalid = createInvalid;
+    hooks.duration = createDuration;
+    hooks.isMoment = isMoment;
+    hooks.weekdays = listWeekdays;
+    hooks.parseZone = createInZone;
+    hooks.localeData = getLocale;
+    hooks.isDuration = isDuration;
+    hooks.monthsShort = listMonthsShort;
+    hooks.weekdaysMin = listWeekdaysMin;
+    hooks.defineLocale = defineLocale;
+    hooks.updateLocale = updateLocale;
+    hooks.locales = listLocales;
+    hooks.weekdaysShort = listWeekdaysShort;
+    hooks.normalizeUnits = normalizeUnits;
+    hooks.relativeTimeRounding = getSetRelativeTimeRounding;
+    hooks.relativeTimeThreshold = getSetRelativeTimeThreshold;
+    hooks.calendarFormat = getCalendarFormat;
+    hooks.prototype = proto;
+
+    // currently HTML5 input type only supports 24-hour formats
+    hooks.HTML5_FMT = {
+        DATETIME_LOCAL: 'YYYY-MM-DDTHH:mm', // <input type="datetime-local" />
+        DATETIME_LOCAL_SECONDS: 'YYYY-MM-DDTHH:mm:ss', // <input type="datetime-local" step="1" />
+        DATETIME_LOCAL_MS: 'YYYY-MM-DDTHH:mm:ss.SSS', // <input type="datetime-local" step="0.001" />
+        DATE: 'YYYY-MM-DD', // <input type="date" />
+        TIME: 'HH:mm', // <input type="time" />
+        TIME_SECONDS: 'HH:mm:ss', // <input type="time" step="1" />
+        TIME_MS: 'HH:mm:ss.SSS', // <input type="time" step="0.001" />
+        WEEK: 'GGGG-[W]WW', // <input type="week" />
+        MONTH: 'YYYY-MM', // <input type="month" />
+    };
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('af', {
+        months: 'Januarie_Februarie_Maart_April_Mei_Junie_Julie_Augustus_September_Oktober_November_Desember'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mrt_Apr_Mei_Jun_Jul_Aug_Sep_Okt_Nov_Des'.split('_'),
+        weekdays: 'Sondag_Maandag_Dinsdag_Woensdag_Donderdag_Vrydag_Saterdag'.split(
+            '_'
+        ),
+        weekdaysShort: 'Son_Maa_Din_Woe_Don_Vry_Sat'.split('_'),
+        weekdaysMin: 'So_Ma_Di_Wo_Do_Vr_Sa'.split('_'),
+        meridiemParse: /vm|nm/i,
+        isPM: function (input) {
+            return /^nm$/i.test(input);
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 12) {
+                return isLower ? 'vm' : 'VM';
+            } else {
+                return isLower ? 'nm' : 'NM';
+            }
+        },
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Vandag om] LT',
+            nextDay: '[Môre om] LT',
+            nextWeek: 'dddd [om] LT',
+            lastDay: '[Gister om] LT',
+            lastWeek: '[Laas] dddd [om] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'oor %s',
+            past: '%s gelede',
+            s: "'n paar sekondes",
+            ss: '%d sekondes',
+            m: "'n minuut",
+            mm: '%d minute',
+            h: "'n uur",
+            hh: '%d ure',
+            d: "'n dag",
+            dd: '%d dae',
+            M: "'n maand",
+            MM: '%d maande',
+            y: "'n jaar",
+            yy: '%d jaar',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
+        ordinal: function (number) {
+            return (
+                number +
+                (number === 1 || number === 8 || number >= 20 ? 'ste' : 'de')
+            ); // Thanks to Joris Röling : https://github.com/jjupiter
+        },
+        week: {
+            dow: 1, // Maandag is die eerste dag van die week.
+            doy: 4, // Die week wat die 4de Januarie bevat is die eerste week van die jaar.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var pluralForm = function (n) {
+            return n === 0
+                ? 0
+                : n === 1
+                  ? 1
+                  : n === 2
+                    ? 2
+                    : n % 100 >= 3 && n % 100 <= 10
+                      ? 3
+                      : n % 100 >= 11
+                        ? 4
+                        : 5;
+        },
+        plurals = {
+            s: [
+                'أقل من ثانية',
+                'ثانية واحدة',
+                ['ثانيتان', 'ثانيتين'],
+                '%d ثوان',
+                '%d ثانية',
+                '%d ثانية',
+            ],
+            m: [
+                'أقل من دقيقة',
+                'دقيقة واحدة',
+                ['دقيقتان', 'دقيقتين'],
+                '%d دقائق',
+                '%d دقيقة',
+                '%d دقيقة',
+            ],
+            h: [
+                'أقل من ساعة',
+                'ساعة واحدة',
+                ['ساعتان', 'ساعتين'],
+                '%d ساعات',
+                '%d ساعة',
+                '%d ساعة',
+            ],
+            d: [
+                'أقل من يوم',
+                'يوم واحد',
+                ['يومان', 'يومين'],
+                '%d أيام',
+                '%d يومًا',
+                '%d يوم',
+            ],
+            M: [
+                'أقل من شهر',
+                'شهر واحد',
+                ['شهران', 'شهرين'],
+                '%d أشهر',
+                '%d شهرا',
+                '%d شهر',
+            ],
+            y: [
+                'أقل من عام',
+                'عام واحد',
+                ['عامان', 'عامين'],
+                '%d أعوام',
+                '%d عامًا',
+                '%d عام',
+            ],
+        },
+        pluralize = function (u) {
+            return function (number, withoutSuffix, string, isFuture) {
+                var f = pluralForm(number),
+                    str = plurals[u][pluralForm(number)];
+                if (f === 2) {
+                    str = str[withoutSuffix ? 0 : 1];
+                }
+                return str.replace(/%d/i, number);
+            };
+        },
+        months$1 = [
+            'جانفي',
+            'فيفري',
+            'مارس',
+            'أفريل',
+            'ماي',
+            'جوان',
+            'جويلية',
+            'أوت',
+            'سبتمبر',
+            'أكتوبر',
+            'نوفمبر',
+            'ديسمبر',
+        ];
+
+    hooks.defineLocale('ar-dz', {
+        months: months$1,
+        monthsShort: months$1,
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'D/\u200FM/\u200FYYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ص|م/,
+        isPM: function (input) {
+            return 'م' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ص';
+            } else {
+                return 'م';
+            }
+        },
+        calendar: {
+            sameDay: '[اليوم عند الساعة] LT',
+            nextDay: '[غدًا عند الساعة] LT',
+            nextWeek: 'dddd [عند الساعة] LT',
+            lastDay: '[أمس عند الساعة] LT',
+            lastWeek: 'dddd [عند الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'بعد %s',
+            past: 'منذ %s',
+            s: pluralize('s'),
+            ss: pluralize('s'),
+            m: pluralize('m'),
+            mm: pluralize('m'),
+            h: pluralize('h'),
+            hh: pluralize('h'),
+            d: pluralize('d'),
+            dd: pluralize('d'),
+            M: pluralize('M'),
+            MM: pluralize('M'),
+            y: pluralize('y'),
+            yy: pluralize('y'),
+        },
+        postformat: function (string) {
+            return string.replace(/,/g, '،');
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('ar-kw', {
+        months: 'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split(
+            '_'
+        ),
+        monthsShort:
+            'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split(
+                '_'
+            ),
+        weekdays: 'الأحد_الإتنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'احد_اتنين_ثلاثاء_اربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[اليوم على الساعة] LT',
+            nextDay: '[غدا على الساعة] LT',
+            nextWeek: 'dddd [على الساعة] LT',
+            lastDay: '[أمس على الساعة] LT',
+            lastWeek: 'dddd [على الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'في %s',
+            past: 'منذ %s',
+            s: 'ثوان',
+            ss: '%d ثانية',
+            m: 'دقيقة',
+            mm: '%d دقائق',
+            h: 'ساعة',
+            hh: '%d ساعات',
+            d: 'يوم',
+            dd: '%d أيام',
+            M: 'شهر',
+            MM: '%d أشهر',
+            y: 'سنة',
+            yy: '%d سنوات',
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap = {
+            1: '1',
+            2: '2',
+            3: '3',
+            4: '4',
+            5: '5',
+            6: '6',
+            7: '7',
+            8: '8',
+            9: '9',
+            0: '0',
+        },
+        pluralForm$1 = function (n) {
+            return n === 0
+                ? 0
+                : n === 1
+                  ? 1
+                  : n === 2
+                    ? 2
+                    : n % 100 >= 3 && n % 100 <= 10
+                      ? 3
+                      : n % 100 >= 11
+                        ? 4
+                        : 5;
+        },
+        plurals$1 = {
+            s: [
+                'أقل من ثانية',
+                'ثانية واحدة',
+                ['ثانيتان', 'ثانيتين'],
+                '%d ثوان',
+                '%d ثانية',
+                '%d ثانية',
+            ],
+            m: [
+                'أقل من دقيقة',
+                'دقيقة واحدة',
+                ['دقيقتان', 'دقيقتين'],
+                '%d دقائق',
+                '%d دقيقة',
+                '%d دقيقة',
+            ],
+            h: [
+                'أقل من ساعة',
+                'ساعة واحدة',
+                ['ساعتان', 'ساعتين'],
+                '%d ساعات',
+                '%d ساعة',
+                '%d ساعة',
+            ],
+            d: [
+                'أقل من يوم',
+                'يوم واحد',
+                ['يومان', 'يومين'],
+                '%d أيام',
+                '%d يومًا',
+                '%d يوم',
+            ],
+            M: [
+                'أقل من شهر',
+                'شهر واحد',
+                ['شهران', 'شهرين'],
+                '%d أشهر',
+                '%d شهرا',
+                '%d شهر',
+            ],
+            y: [
+                'أقل من عام',
+                'عام واحد',
+                ['عامان', 'عامين'],
+                '%d أعوام',
+                '%d عامًا',
+                '%d عام',
+            ],
+        },
+        pluralize$1 = function (u) {
+            return function (number, withoutSuffix, string, isFuture) {
+                var f = pluralForm$1(number),
+                    str = plurals$1[u][pluralForm$1(number)];
+                if (f === 2) {
+                    str = str[withoutSuffix ? 0 : 1];
+                }
+                return str.replace(/%d/i, number);
+            };
+        },
+        months$2 = [
+            'يناير',
+            'فبراير',
+            'مارس',
+            'أبريل',
+            'مايو',
+            'يونيو',
+            'يوليو',
+            'أغسطس',
+            'سبتمبر',
+            'أكتوبر',
+            'نوفمبر',
+            'ديسمبر',
+        ];
+
+    hooks.defineLocale('ar-ly', {
+        months: months$2,
+        monthsShort: months$2,
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'D/\u200FM/\u200FYYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ص|م/,
+        isPM: function (input) {
+            return 'م' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ص';
+            } else {
+                return 'م';
+            }
+        },
+        calendar: {
+            sameDay: '[اليوم عند الساعة] LT',
+            nextDay: '[غدًا عند الساعة] LT',
+            nextWeek: 'dddd [عند الساعة] LT',
+            lastDay: '[أمس عند الساعة] LT',
+            lastWeek: 'dddd [عند الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'بعد %s',
+            past: 'منذ %s',
+            s: pluralize$1('s'),
+            ss: pluralize$1('s'),
+            m: pluralize$1('m'),
+            mm: pluralize$1('m'),
+            h: pluralize$1('h'),
+            hh: pluralize$1('h'),
+            d: pluralize$1('d'),
+            dd: pluralize$1('d'),
+            M: pluralize$1('M'),
+            MM: pluralize$1('M'),
+            y: pluralize$1('y'),
+            yy: pluralize$1('y'),
+        },
+        preparse: function (string) {
+            return string.replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string
+                .replace(/\d/g, function (match) {
+                    return symbolMap[match];
+                })
+                .replace(/,/g, '،');
+        },
+        week: {
+            dow: 6, // Saturday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('ar-ma', {
+        months: 'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split(
+            '_'
+        ),
+        monthsShort:
+            'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split(
+                '_'
+            ),
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'احد_اثنين_ثلاثاء_اربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[اليوم على الساعة] LT',
+            nextDay: '[غدا على الساعة] LT',
+            nextWeek: 'dddd [على الساعة] LT',
+            lastDay: '[أمس على الساعة] LT',
+            lastWeek: 'dddd [على الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'في %s',
+            past: 'منذ %s',
+            s: 'ثوان',
+            ss: '%d ثانية',
+            m: 'دقيقة',
+            mm: '%d دقائق',
+            h: 'ساعة',
+            hh: '%d ساعات',
+            d: 'يوم',
+            dd: '%d أيام',
+            M: 'شهر',
+            MM: '%d أشهر',
+            y: 'سنة',
+            yy: '%d سنوات',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$1 = {
+            1: '١',
+            2: '٢',
+            3: '٣',
+            4: '٤',
+            5: '٥',
+            6: '٦',
+            7: '٧',
+            8: '٨',
+            9: '٩',
+            0: '٠',
+        },
+        numberMap = {
+            '١': '1',
+            '٢': '2',
+            '٣': '3',
+            '٤': '4',
+            '٥': '5',
+            '٦': '6',
+            '٧': '7',
+            '٨': '8',
+            '٩': '9',
+            '٠': '0',
+        };
+
+    hooks.defineLocale('ar-ps', {
+        months: 'كانون الثاني_شباط_آذار_نيسان_أيّار_حزيران_تمّوز_آب_أيلول_تشري الأوّل_تشرين الثاني_كانون الأوّل'.split(
+            '_'
+        ),
+        monthsShort:
+            'ك٢_شباط_آذار_نيسان_أيّار_حزيران_تمّوز_آب_أيلول_ت١_ت٢_ك١'.split('_'),
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ص|م/,
+        isPM: function (input) {
+            return 'م' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ص';
+            } else {
+                return 'م';
+            }
+        },
+        calendar: {
+            sameDay: '[اليوم على الساعة] LT',
+            nextDay: '[غدا على الساعة] LT',
+            nextWeek: 'dddd [على الساعة] LT',
+            lastDay: '[أمس على الساعة] LT',
+            lastWeek: 'dddd [على الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'في %s',
+            past: 'منذ %s',
+            s: 'ثوان',
+            ss: '%d ثانية',
+            m: 'دقيقة',
+            mm: '%d دقائق',
+            h: 'ساعة',
+            hh: '%d ساعات',
+            d: 'يوم',
+            dd: '%d أيام',
+            M: 'شهر',
+            MM: '%d أشهر',
+            y: 'سنة',
+            yy: '%d سنوات',
+        },
+        preparse: function (string) {
+            return string
+                .replace(/[٣٤٥٦٧٨٩٠]/g, function (match) {
+                    return numberMap[match];
+                })
+                .split('') // reversed since negative lookbehind not supported everywhere
+                .reverse()
+                .join('')
+                .replace(/[١٢](?![\u062a\u0643])/g, function (match) {
+                    return numberMap[match];
+                })
+                .split('')
+                .reverse()
+                .join('')
+                .replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string
+                .replace(/\d/g, function (match) {
+                    return symbolMap$1[match];
+                })
+                .replace(/,/g, '،');
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$2 = {
+            1: '١',
+            2: '٢',
+            3: '٣',
+            4: '٤',
+            5: '٥',
+            6: '٦',
+            7: '٧',
+            8: '٨',
+            9: '٩',
+            0: '٠',
+        },
+        numberMap$1 = {
+            '١': '1',
+            '٢': '2',
+            '٣': '3',
+            '٤': '4',
+            '٥': '5',
+            '٦': '6',
+            '٧': '7',
+            '٨': '8',
+            '٩': '9',
+            '٠': '0',
+        };
+
+    hooks.defineLocale('ar-sa', {
+        months: 'يناير_فبراير_مارس_أبريل_مايو_يونيو_يوليو_أغسطس_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split(
+            '_'
+        ),
+        monthsShort:
+            'يناير_فبراير_مارس_أبريل_مايو_يونيو_يوليو_أغسطس_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split(
+                '_'
+            ),
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ص|م/,
+        isPM: function (input) {
+            return 'م' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ص';
+            } else {
+                return 'م';
+            }
+        },
+        calendar: {
+            sameDay: '[اليوم على الساعة] LT',
+            nextDay: '[غدا على الساعة] LT',
+            nextWeek: 'dddd [على الساعة] LT',
+            lastDay: '[أمس على الساعة] LT',
+            lastWeek: 'dddd [على الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'في %s',
+            past: 'منذ %s',
+            s: 'ثوان',
+            ss: '%d ثانية',
+            m: 'دقيقة',
+            mm: '%d دقائق',
+            h: 'ساعة',
+            hh: '%d ساعات',
+            d: 'يوم',
+            dd: '%d أيام',
+            M: 'شهر',
+            MM: '%d أشهر',
+            y: 'سنة',
+            yy: '%d سنوات',
+        },
+        preparse: function (string) {
+            return string
+                .replace(/[١٢٣٤٥٦٧٨٩٠]/g, function (match) {
+                    return numberMap$1[match];
+                })
+                .replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string
+                .replace(/\d/g, function (match) {
+                    return symbolMap$2[match];
+                })
+                .replace(/,/g, '،');
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('ar-tn', {
+        months: 'جانفي_فيفري_مارس_أفريل_ماي_جوان_جويلية_أوت_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split(
+            '_'
+        ),
+        monthsShort:
+            'جانفي_فيفري_مارس_أفريل_ماي_جوان_جويلية_أوت_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split(
+                '_'
+            ),
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[اليوم على الساعة] LT',
+            nextDay: '[غدا على الساعة] LT',
+            nextWeek: 'dddd [على الساعة] LT',
+            lastDay: '[أمس على الساعة] LT',
+            lastWeek: 'dddd [على الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'في %s',
+            past: 'منذ %s',
+            s: 'ثوان',
+            ss: '%d ثانية',
+            m: 'دقيقة',
+            mm: '%d دقائق',
+            h: 'ساعة',
+            hh: '%d ساعات',
+            d: 'يوم',
+            dd: '%d أيام',
+            M: 'شهر',
+            MM: '%d أشهر',
+            y: 'سنة',
+            yy: '%d سنوات',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$3 = {
+            1: '١',
+            2: '٢',
+            3: '٣',
+            4: '٤',
+            5: '٥',
+            6: '٦',
+            7: '٧',
+            8: '٨',
+            9: '٩',
+            0: '٠',
+        },
+        numberMap$2 = {
+            '١': '1',
+            '٢': '2',
+            '٣': '3',
+            '٤': '4',
+            '٥': '5',
+            '٦': '6',
+            '٧': '7',
+            '٨': '8',
+            '٩': '9',
+            '٠': '0',
+        },
+        pluralForm$2 = function (n) {
+            return n === 0
+                ? 0
+                : n === 1
+                  ? 1
+                  : n === 2
+                    ? 2
+                    : n % 100 >= 3 && n % 100 <= 10
+                      ? 3
+                      : n % 100 >= 11
+                        ? 4
+                        : 5;
+        },
+        plurals$2 = {
+            s: [
+                'أقل من ثانية',
+                'ثانية واحدة',
+                ['ثانيتان', 'ثانيتين'],
+                '%d ثوان',
+                '%d ثانية',
+                '%d ثانية',
+            ],
+            m: [
+                'أقل من دقيقة',
+                'دقيقة واحدة',
+                ['دقيقتان', 'دقيقتين'],
+                '%d دقائق',
+                '%d دقيقة',
+                '%d دقيقة',
+            ],
+            h: [
+                'أقل من ساعة',
+                'ساعة واحدة',
+                ['ساعتان', 'ساعتين'],
+                '%d ساعات',
+                '%d ساعة',
+                '%d ساعة',
+            ],
+            d: [
+                'أقل من يوم',
+                'يوم واحد',
+                ['يومان', 'يومين'],
+                '%d أيام',
+                '%d يومًا',
+                '%d يوم',
+            ],
+            M: [
+                'أقل من شهر',
+                'شهر واحد',
+                ['شهران', 'شهرين'],
+                '%d أشهر',
+                '%d شهرا',
+                '%d شهر',
+            ],
+            y: [
+                'أقل من عام',
+                'عام واحد',
+                ['عامان', 'عامين'],
+                '%d أعوام',
+                '%d عامًا',
+                '%d عام',
+            ],
+        },
+        pluralize$2 = function (u) {
+            return function (number, withoutSuffix, string, isFuture) {
+                var f = pluralForm$2(number),
+                    str = plurals$2[u][pluralForm$2(number)];
+                if (f === 2) {
+                    str = str[withoutSuffix ? 0 : 1];
+                }
+                return str.replace(/%d/i, number);
+            };
+        },
+        months$3 = [
+            'يناير',
+            'فبراير',
+            'مارس',
+            'أبريل',
+            'مايو',
+            'يونيو',
+            'يوليو',
+            'أغسطس',
+            'سبتمبر',
+            'أكتوبر',
+            'نوفمبر',
+            'ديسمبر',
+        ];
+
+    hooks.defineLocale('ar', {
+        months: months$3,
+        monthsShort: months$3,
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'D/\u200FM/\u200FYYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ص|م/,
+        isPM: function (input) {
+            return 'م' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ص';
+            } else {
+                return 'م';
+            }
+        },
+        calendar: {
+            sameDay: '[اليوم عند الساعة] LT',
+            nextDay: '[غدًا عند الساعة] LT',
+            nextWeek: 'dddd [عند الساعة] LT',
+            lastDay: '[أمس عند الساعة] LT',
+            lastWeek: 'dddd [عند الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'بعد %s',
+            past: 'منذ %s',
+            s: pluralize$2('s'),
+            ss: pluralize$2('s'),
+            m: pluralize$2('m'),
+            mm: pluralize$2('m'),
+            h: pluralize$2('h'),
+            hh: pluralize$2('h'),
+            d: pluralize$2('d'),
+            dd: pluralize$2('d'),
+            M: pluralize$2('M'),
+            MM: pluralize$2('M'),
+            y: pluralize$2('y'),
+            yy: pluralize$2('y'),
+        },
+        preparse: function (string) {
+            return string
+                .replace(/[١٢٣٤٥٦٧٨٩٠]/g, function (match) {
+                    return numberMap$2[match];
+                })
+                .replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string
+                .replace(/\d/g, function (match) {
+                    return symbolMap$3[match];
+                })
+                .replace(/,/g, '،');
+        },
+        week: {
+            dow: 6, // Saturday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var suffixes = {
+        1: '-inci',
+        5: '-inci',
+        8: '-inci',
+        70: '-inci',
+        80: '-inci',
+        2: '-nci',
+        7: '-nci',
+        20: '-nci',
+        50: '-nci',
+        3: '-üncü',
+        4: '-üncü',
+        100: '-üncü',
+        6: '-ncı',
+        9: '-uncu',
+        10: '-uncu',
+        30: '-uncu',
+        60: '-ıncı',
+        90: '-ıncı',
+    };
+
+    hooks.defineLocale('az', {
+        months: 'yanvar_fevral_mart_aprel_may_iyun_iyul_avqust_sentyabr_oktyabr_noyabr_dekabr'.split(
+            '_'
+        ),
+        monthsShort: 'yan_fev_mar_apr_may_iyn_iyl_avq_sen_okt_noy_dek'.split('_'),
+        weekdays:
+            'Bazar_Bazar ertəsi_Çərşənbə axşamı_Çərşənbə_Cümə axşamı_Cümə_Şənbə'.split(
+                '_'
+            ),
+        weekdaysShort: 'Baz_BzE_ÇAx_Çər_CAx_Cüm_Şən'.split('_'),
+        weekdaysMin: 'Bz_BE_ÇA_Çə_CA_Cü_Şə'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[bugün saat] LT',
+            nextDay: '[sabah saat] LT',
+            nextWeek: '[gələn həftə] dddd [saat] LT',
+            lastDay: '[dünən] LT',
+            lastWeek: '[keçən həftə] dddd [saat] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s sonra',
+            past: '%s əvvəl',
+            s: 'bir neçə saniyə',
+            ss: '%d saniyə',
+            m: 'bir dəqiqə',
+            mm: '%d dəqiqə',
+            h: 'bir saat',
+            hh: '%d saat',
+            d: 'bir gün',
+            dd: '%d gün',
+            M: 'bir ay',
+            MM: '%d ay',
+            y: 'bir il',
+            yy: '%d il',
+        },
+        meridiemParse: /gecə|səhər|gündüz|axşam/,
+        isPM: function (input) {
+            return /^(gündüz|axşam)$/.test(input);
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'gecə';
+            } else if (hour < 12) {
+                return 'səhər';
+            } else if (hour < 17) {
+                return 'gündüz';
+            } else {
+                return 'axşam';
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(ıncı|inci|nci|üncü|ncı|uncu)/,
+        ordinal: function (number) {
+            if (number === 0) {
+                // special case for zero
+                return number + '-ıncı';
+            }
+            var a = number % 10,
+                b = (number % 100) - a,
+                c = number >= 100 ? 100 : null;
+            return number + (suffixes[a] || suffixes[b] || suffixes[c]);
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function plural(word, num) {
+        var forms = word.split('_');
+        return num % 10 === 1 && num % 100 !== 11
+            ? forms[0]
+            : num % 10 >= 2 && num % 10 <= 4 && (num % 100 < 10 || num % 100 >= 20)
+              ? forms[1]
+              : forms[2];
+    }
+    function relativeTimeWithPlural(number, withoutSuffix, key) {
+        var format = {
+            ss: withoutSuffix ? 'секунда_секунды_секунд' : 'секунду_секунды_секунд',
+            mm: withoutSuffix ? 'хвіліна_хвіліны_хвілін' : 'хвіліну_хвіліны_хвілін',
+            hh: withoutSuffix ? 'гадзіна_гадзіны_гадзін' : 'гадзіну_гадзіны_гадзін',
+            dd: 'дзень_дні_дзён',
+            MM: 'месяц_месяцы_месяцаў',
+            yy: 'год_гады_гадоў',
+        };
+        if (key === 'm') {
+            return withoutSuffix ? 'хвіліна' : 'хвіліну';
+        } else if (key === 'h') {
+            return withoutSuffix ? 'гадзіна' : 'гадзіну';
+        } else {
+            return number + ' ' + plural(format[key], +number);
+        }
+    }
+
+    hooks.defineLocale('be', {
+        months: {
+            format: 'студзеня_лютага_сакавіка_красавіка_траўня_чэрвеня_ліпеня_жніўня_верасня_кастрычніка_лістапада_снежня'.split(
+                '_'
+            ),
+            standalone:
+                'студзень_люты_сакавік_красавік_травень_чэрвень_ліпень_жнівень_верасень_кастрычнік_лістапад_снежань'.split(
+                    '_'
+                ),
+        },
+        monthsShort:
+            'студ_лют_сак_крас_трав_чэрв_ліп_жнів_вер_каст_ліст_снеж'.split('_'),
+        weekdays: {
+            format: 'нядзелю_панядзелак_аўторак_сераду_чацвер_пятніцу_суботу'.split(
+                '_'
+            ),
+            standalone:
+                'нядзеля_панядзелак_аўторак_серада_чацвер_пятніца_субота'.split(
+                    '_'
+                ),
+            isFormat: /\[ ?[Ууў] ?(?:мінулую|наступную)? ?\] ?dddd/,
+        },
+        weekdaysShort: 'нд_пн_ат_ср_чц_пт_сб'.split('_'),
+        weekdaysMin: 'нд_пн_ат_ср_чц_пт_сб'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY г.',
+            LLL: 'D MMMM YYYY г., HH:mm',
+            LLLL: 'dddd, D MMMM YYYY г., HH:mm',
+        },
+        calendar: {
+            sameDay: '[Сёння ў] LT',
+            nextDay: '[Заўтра ў] LT',
+            lastDay: '[Учора ў] LT',
+            nextWeek: function () {
+                return '[У] dddd [ў] LT';
+            },
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                    case 3:
+                    case 5:
+                    case 6:
+                        return '[У мінулую] dddd [ў] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                        return '[У мінулы] dddd [ў] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'праз %s',
+            past: '%s таму',
+            s: 'некалькі секунд',
+            m: relativeTimeWithPlural,
+            mm: relativeTimeWithPlural,
+            h: relativeTimeWithPlural,
+            hh: relativeTimeWithPlural,
+            d: 'дзень',
+            dd: relativeTimeWithPlural,
+            M: 'месяц',
+            MM: relativeTimeWithPlural,
+            y: 'год',
+            yy: relativeTimeWithPlural,
+        },
+        meridiemParse: /ночы|раніцы|дня|вечара/,
+        isPM: function (input) {
+            return /^(дня|вечара)$/.test(input);
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'ночы';
+            } else if (hour < 12) {
+                return 'раніцы';
+            } else if (hour < 17) {
+                return 'дня';
+            } else {
+                return 'вечара';
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(і|ы|га)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'M':
+                case 'd':
+                case 'DDD':
+                case 'w':
+                case 'W':
+                    return (number % 10 === 2 || number % 10 === 3) &&
+                        number % 100 !== 12 &&
+                        number % 100 !== 13
+                        ? number + '-і'
+                        : number + '-ы';
+                case 'D':
+                    return number + '-га';
+                default:
+                    return number;
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('bg', {
+        months: 'януари_февруари_март_април_май_юни_юли_август_септември_октомври_ноември_декември'.split(
+            '_'
+        ),
+        monthsShort: 'яну_фев_мар_апр_май_юни_юли_авг_сеп_окт_ное_дек'.split('_'),
+        weekdays: 'неделя_понеделник_вторник_сряда_четвъртък_петък_събота'.split(
+            '_'
+        ),
+        weekdaysShort: 'нед_пон_вто_сря_чет_пет_съб'.split('_'),
+        weekdaysMin: 'нд_пн_вт_ср_чт_пт_сб'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'D.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY H:mm',
+            LLLL: 'dddd, D MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[Днес в] LT',
+            nextDay: '[Утре в] LT',
+            nextWeek: 'dddd [в] LT',
+            lastDay: '[Вчера в] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                    case 3:
+                    case 6:
+                        return '[Миналата] dddd [в] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[Миналия] dddd [в] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'след %s',
+            past: 'преди %s',
+            s: 'няколко секунди',
+            ss: '%d секунди',
+            m: 'минута',
+            mm: '%d минути',
+            h: 'час',
+            hh: '%d часа',
+            d: 'ден',
+            dd: '%d дена',
+            w: 'седмица',
+            ww: '%d седмици',
+            M: 'месец',
+            MM: '%d месеца',
+            y: 'година',
+            yy: '%d години',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(ев|ен|ти|ви|ри|ми)/,
+        ordinal: function (number) {
+            var lastDigit = number % 10,
+                last2Digits = number % 100;
+            if (number === 0) {
+                return number + '-ев';
+            } else if (last2Digits === 0) {
+                return number + '-ен';
+            } else if (last2Digits > 10 && last2Digits < 20) {
+                return number + '-ти';
+            } else if (lastDigit === 1) {
+                return number + '-ви';
+            } else if (lastDigit === 2) {
+                return number + '-ри';
+            } else if (lastDigit === 7 || lastDigit === 8) {
+                return number + '-ми';
+            } else {
+                return number + '-ти';
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('bm', {
+        months: 'Zanwuyekalo_Fewuruyekalo_Marisikalo_Awirilikalo_Mɛkalo_Zuwɛnkalo_Zuluyekalo_Utikalo_Sɛtanburukalo_ɔkutɔburukalo_Nowanburukalo_Desanburukalo'.split(
+            '_'
+        ),
+        monthsShort: 'Zan_Few_Mar_Awi_Mɛ_Zuw_Zul_Uti_Sɛt_ɔku_Now_Des'.split('_'),
+        weekdays: 'Kari_Ntɛnɛn_Tarata_Araba_Alamisa_Juma_Sibiri'.split('_'),
+        weekdaysShort: 'Kar_Ntɛ_Tar_Ara_Ala_Jum_Sib'.split('_'),
+        weekdaysMin: 'Ka_Nt_Ta_Ar_Al_Ju_Si'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'MMMM [tile] D [san] YYYY',
+            LLL: 'MMMM [tile] D [san] YYYY [lɛrɛ] HH:mm',
+            LLLL: 'dddd MMMM [tile] D [san] YYYY [lɛrɛ] HH:mm',
+        },
+        calendar: {
+            sameDay: '[Bi lɛrɛ] LT',
+            nextDay: '[Sini lɛrɛ] LT',
+            nextWeek: 'dddd [don lɛrɛ] LT',
+            lastDay: '[Kunu lɛrɛ] LT',
+            lastWeek: 'dddd [tɛmɛnen lɛrɛ] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s kɔnɔ',
+            past: 'a bɛ %s bɔ',
+            s: 'sanga dama dama',
+            ss: 'sekondi %d',
+            m: 'miniti kelen',
+            mm: 'miniti %d',
+            h: 'lɛrɛ kelen',
+            hh: 'lɛrɛ %d',
+            d: 'tile kelen',
+            dd: 'tile %d',
+            M: 'kalo kelen',
+            MM: 'kalo %d',
+            y: 'san kelen',
+            yy: 'san %d',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$4 = {
+            1: '১',
+            2: '২',
+            3: '৩',
+            4: '৪',
+            5: '৫',
+            6: '৬',
+            7: '৭',
+            8: '৮',
+            9: '৯',
+            0: '০',
+        },
+        numberMap$3 = {
+            '১': '1',
+            '২': '2',
+            '৩': '3',
+            '৪': '4',
+            '৫': '5',
+            '৬': '6',
+            '৭': '7',
+            '৮': '8',
+            '৯': '9',
+            '০': '0',
+        };
+
+    hooks.defineLocale('bn-bd', {
+        months: 'জানুয়ারি_ফেব্রুয়ারি_মার্চ_এপ্রিল_মে_জুন_জুলাই_আগস্ট_সেপ্টেম্বর_অক্টোবর_নভেম্বর_ডিসেম্বর'.split(
+            '_'
+        ),
+        monthsShort:
+            'জানু_ফেব্রু_মার্চ_এপ্রিল_মে_জুন_জুলাই_আগস্ট_সেপ্ট_অক্টো_নভে_ডিসে'.split(
+                '_'
+            ),
+        weekdays: 'রবিবার_সোমবার_মঙ্গলবার_বুধবার_বৃহস্পতিবার_শুক্রবার_শনিবার'.split(
+            '_'
+        ),
+        weekdaysShort: 'রবি_সোম_মঙ্গল_বুধ_বৃহস্পতি_শুক্র_শনি'.split('_'),
+        weekdaysMin: 'রবি_সোম_মঙ্গল_বুধ_বৃহ_শুক্র_শনি'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm সময়',
+            LTS: 'A h:mm:ss সময়',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm সময়',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm সময়',
+        },
+        calendar: {
+            sameDay: '[আজ] LT',
+            nextDay: '[আগামীকাল] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[গতকাল] LT',
+            lastWeek: '[গত] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s পরে',
+            past: '%s আগে',
+            s: 'কয়েক সেকেন্ড',
+            ss: '%d সেকেন্ড',
+            m: 'এক মিনিট',
+            mm: '%d মিনিট',
+            h: 'এক ঘন্টা',
+            hh: '%d ঘন্টা',
+            d: 'এক দিন',
+            dd: '%d দিন',
+            M: 'এক মাস',
+            MM: '%d মাস',
+            y: 'এক বছর',
+            yy: '%d বছর',
+        },
+        preparse: function (string) {
+            return string.replace(/[১২৩৪৫৬৭৮৯০]/g, function (match) {
+                return numberMap$3[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap$4[match];
+            });
+        },
+
+        meridiemParse: /রাত|ভোর|সকাল|দুপুর|বিকাল|সন্ধ্যা|রাত/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'রাত') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'ভোর') {
+                return hour;
+            } else if (meridiem === 'সকাল') {
+                return hour;
+            } else if (meridiem === 'দুপুর') {
+                return hour >= 3 ? hour : hour + 12;
+            } else if (meridiem === 'বিকাল') {
+                return hour + 12;
+            } else if (meridiem === 'সন্ধ্যা') {
+                return hour + 12;
+            }
+        },
+
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'রাত';
+            } else if (hour < 6) {
+                return 'ভোর';
+            } else if (hour < 12) {
+                return 'সকাল';
+            } else if (hour < 15) {
+                return 'দুপুর';
+            } else if (hour < 18) {
+                return 'বিকাল';
+            } else if (hour < 20) {
+                return 'সন্ধ্যা';
+            } else {
+                return 'রাত';
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$5 = {
+            1: '১',
+            2: '২',
+            3: '৩',
+            4: '৪',
+            5: '৫',
+            6: '৬',
+            7: '৭',
+            8: '৮',
+            9: '৯',
+            0: '০',
+        },
+        numberMap$4 = {
+            '১': '1',
+            '২': '2',
+            '৩': '3',
+            '৪': '4',
+            '৫': '5',
+            '৬': '6',
+            '৭': '7',
+            '৮': '8',
+            '৯': '9',
+            '০': '0',
+        };
+
+    hooks.defineLocale('bn', {
+        months: 'জানুয়ারি_ফেব্রুয়ারি_মার্চ_এপ্রিল_মে_জুন_জুলাই_আগস্ট_সেপ্টেম্বর_অক্টোবর_নভেম্বর_ডিসেম্বর'.split(
+            '_'
+        ),
+        monthsShort:
+            'জানু_ফেব্রু_মার্চ_এপ্রিল_মে_জুন_জুলাই_আগস্ট_সেপ্ট_অক্টো_নভে_ডিসে'.split(
+                '_'
+            ),
+        weekdays: 'রবিবার_সোমবার_মঙ্গলবার_বুধবার_বৃহস্পতিবার_শুক্রবার_শনিবার'.split(
+            '_'
+        ),
+        weekdaysShort: 'রবি_সোম_মঙ্গল_বুধ_বৃহস্পতি_শুক্র_শনি'.split('_'),
+        weekdaysMin: 'রবি_সোম_মঙ্গল_বুধ_বৃহ_শুক্র_শনি'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm সময়',
+            LTS: 'A h:mm:ss সময়',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm সময়',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm সময়',
+        },
+        calendar: {
+            sameDay: '[আজ] LT',
+            nextDay: '[আগামীকাল] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[গতকাল] LT',
+            lastWeek: '[গত] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s পরে',
+            past: '%s আগে',
+            s: 'কয়েক সেকেন্ড',
+            ss: '%d সেকেন্ড',
+            m: 'এক মিনিট',
+            mm: '%d মিনিট',
+            h: 'এক ঘন্টা',
+            hh: '%d ঘন্টা',
+            d: 'এক দিন',
+            dd: '%d দিন',
+            M: 'এক মাস',
+            MM: '%d মাস',
+            y: 'এক বছর',
+            yy: '%d বছর',
+        },
+        preparse: function (string) {
+            return string.replace(/[১২৩৪৫৬৭৮৯০]/g, function (match) {
+                return numberMap$4[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap$5[match];
+            });
+        },
+        meridiemParse: /রাত|সকাল|দুপুর|বিকাল|রাত/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (
+                (meridiem === 'রাত' && hour >= 4) ||
+                (meridiem === 'দুপুর' && hour < 5) ||
+                meridiem === 'বিকাল'
+            ) {
+                return hour + 12;
+            } else {
+                return hour;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'রাত';
+            } else if (hour < 10) {
+                return 'সকাল';
+            } else if (hour < 17) {
+                return 'দুপুর';
+            } else if (hour < 20) {
+                return 'বিকাল';
+            } else {
+                return 'রাত';
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$6 = {
+            1: '༡',
+            2: '༢',
+            3: '༣',
+            4: '༤',
+            5: '༥',
+            6: '༦',
+            7: '༧',
+            8: '༨',
+            9: '༩',
+            0: '༠',
+        },
+        numberMap$5 = {
+            '༡': '1',
+            '༢': '2',
+            '༣': '3',
+            '༤': '4',
+            '༥': '5',
+            '༦': '6',
+            '༧': '7',
+            '༨': '8',
+            '༩': '9',
+            '༠': '0',
+        };
+
+    hooks.defineLocale('bo', {
+        months: 'ཟླ་བ་དང་པོ_ཟླ་བ་གཉིས་པ_ཟླ་བ་གསུམ་པ_ཟླ་བ་བཞི་པ_ཟླ་བ་ལྔ་པ_ཟླ་བ་དྲུག་པ_ཟླ་བ་བདུན་པ_ཟླ་བ་བརྒྱད་པ_ཟླ་བ་དགུ་པ_ཟླ་བ་བཅུ་པ_ཟླ་བ་བཅུ་གཅིག་པ_ཟླ་བ་བཅུ་གཉིས་པ'.split(
+            '_'
+        ),
+        monthsShort:
+            'ཟླ་1_ཟླ་2_ཟླ་3_ཟླ་4_ཟླ་5_ཟླ་6_ཟླ་7_ཟླ་8_ཟླ་9_ཟླ་10_ཟླ་11_ཟླ་12'.split(
+                '_'
+            ),
+        monthsShortRegex: /^(ཟླ་\d{1,2})/,
+        monthsParseExact: true,
+        weekdays:
+            'གཟའ་ཉི་མ་_གཟའ་ཟླ་བ་_གཟའ་མིག་དམར་_གཟའ་ལྷག་པ་_གཟའ་ཕུར་བུ_གཟའ་པ་སངས་_གཟའ་སྤེན་པ་'.split(
+                '_'
+            ),
+        weekdaysShort: 'ཉི་མ་_ཟླ་བ་_མིག་དམར་_ལྷག་པ་_ཕུར་བུ_པ་སངས་_སྤེན་པ་'.split(
+            '_'
+        ),
+        weekdaysMin: 'ཉི_ཟླ_མིག_ལྷག_ཕུར_སངས_སྤེན'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm',
+            LTS: 'A h:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm',
+        },
+        calendar: {
+            sameDay: '[དི་རིང] LT',
+            nextDay: '[སང་ཉིན] LT',
+            nextWeek: '[བདུན་ཕྲག་རྗེས་མ], LT',
+            lastDay: '[ཁ་སང] LT',
+            lastWeek: '[བདུན་ཕྲག་མཐའ་མ] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s ལ་',
+            past: '%s སྔན་ལ',
+            s: 'ལམ་སང',
+            ss: '%d སྐར་ཆ།',
+            m: 'སྐར་མ་གཅིག',
+            mm: '%d སྐར་མ',
+            h: 'ཆུ་ཚོད་གཅིག',
+            hh: '%d ཆུ་ཚོད',
+            d: 'ཉིན་གཅིག',
+            dd: '%d ཉིན་',
+            M: 'ཟླ་བ་གཅིག',
+            MM: '%d ཟླ་བ',
+            y: 'ལོ་གཅིག',
+            yy: '%d ལོ',
+        },
+        preparse: function (string) {
+            return string.replace(/[༡༢༣༤༥༦༧༨༩༠]/g, function (match) {
+                return numberMap$5[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap$6[match];
+            });
+        },
+        meridiemParse: /མཚན་མོ|ཞོགས་ཀས|ཉིན་གུང|དགོང་དག|མཚན་མོ/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (
+                (meridiem === 'མཚན་མོ' && hour >= 4) ||
+                (meridiem === 'ཉིན་གུང' && hour < 5) ||
+                meridiem === 'དགོང་དག'
+            ) {
+                return hour + 12;
+            } else {
+                return hour;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'མཚན་མོ';
+            } else if (hour < 10) {
+                return 'ཞོགས་ཀས';
+            } else if (hour < 17) {
+                return 'ཉིན་གུང';
+            } else if (hour < 20) {
+                return 'དགོང་དག';
+            } else {
+                return 'མཚན་མོ';
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function relativeTimeWithMutation(number, withoutSuffix, key) {
+        var format = {
+            mm: 'munutenn',
+            MM: 'miz',
+            dd: 'devezh',
+        };
+        return number + ' ' + mutation(format[key], number);
+    }
+    function specialMutationForYears(number) {
+        switch (lastNumber(number)) {
+            case 1:
+            case 3:
+            case 4:
+            case 5:
+            case 9:
+                return number + ' bloaz';
+            default:
+                return number + ' vloaz';
+        }
+    }
+    function lastNumber(number) {
+        if (number > 9) {
+            return lastNumber(number % 10);
+        }
+        return number;
+    }
+    function mutation(text, number) {
+        if (number === 2) {
+            return softMutation(text);
+        }
+        return text;
+    }
+    function softMutation(text) {
+        var mutationTable = {
+            m: 'v',
+            b: 'v',
+            d: 'z',
+        };
+        if (mutationTable[text.charAt(0)] === undefined) {
+            return text;
+        }
+        return mutationTable[text.charAt(0)] + text.substring(1);
+    }
+
+    var monthsParse = [
+            /^gen/i,
+            /^c[ʼ\']hwe/i,
+            /^meu/i,
+            /^ebr/i,
+            /^mae/i,
+            /^(mez|eve)/i,
+            /^gou/i,
+            /^eos/i,
+            /^gwe/i,
+            /^her/i,
+            /^du/i,
+            /^ker/i,
+        ],
+        monthsRegex$1 =
+            /^(genver|c[ʼ\']hwevrer|meurzh|ebrel|mae|mezheven|gouere|eost|gwengolo|here|du|kerzu|gen|c[ʼ\']hwe|meu|ebr|mae|eve|gou|eos|gwe|her|du|ker)/i,
+        monthsStrictRegex =
+            /^(genver|c[ʼ\']hwevrer|meurzh|ebrel|mae|mezheven|gouere|eost|gwengolo|here|du|kerzu)/i,
+        monthsShortStrictRegex =
+            /^(gen|c[ʼ\']hwe|meu|ebr|mae|eve|gou|eos|gwe|her|du|ker)/i,
+        fullWeekdaysParse = [
+            /^sul/i,
+            /^lun/i,
+            /^meurzh/i,
+            /^merc[ʼ\']her/i,
+            /^yaou/i,
+            /^gwener/i,
+            /^sadorn/i,
+        ],
+        shortWeekdaysParse = [
+            /^Sul/i,
+            /^Lun/i,
+            /^Meu/i,
+            /^Mer/i,
+            /^Yao/i,
+            /^Gwe/i,
+            /^Sad/i,
+        ],
+        minWeekdaysParse = [
+            /^Su/i,
+            /^Lu/i,
+            /^Me([^r]|$)/i,
+            /^Mer/i,
+            /^Ya/i,
+            /^Gw/i,
+            /^Sa/i,
+        ];
+
+    hooks.defineLocale('br', {
+        months: 'Genver_Cʼhwevrer_Meurzh_Ebrel_Mae_Mezheven_Gouere_Eost_Gwengolo_Here_Du_Kerzu'.split(
+            '_'
+        ),
+        monthsShort: 'Gen_Cʼhwe_Meu_Ebr_Mae_Eve_Gou_Eos_Gwe_Her_Du_Ker'.split('_'),
+        weekdays: 'Sul_Lun_Meurzh_Mercʼher_Yaou_Gwener_Sadorn'.split('_'),
+        weekdaysShort: 'Sul_Lun_Meu_Mer_Yao_Gwe_Sad'.split('_'),
+        weekdaysMin: 'Su_Lu_Me_Mer_Ya_Gw_Sa'.split('_'),
+        weekdaysParse: minWeekdaysParse,
+        fullWeekdaysParse: fullWeekdaysParse,
+        shortWeekdaysParse: shortWeekdaysParse,
+        minWeekdaysParse: minWeekdaysParse,
+
+        monthsRegex: monthsRegex$1,
+        monthsShortRegex: monthsRegex$1,
+        monthsStrictRegex: monthsStrictRegex,
+        monthsShortStrictRegex: monthsShortStrictRegex,
+        monthsParse: monthsParse,
+        longMonthsParse: monthsParse,
+        shortMonthsParse: monthsParse,
+
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D [a viz] MMMM YYYY',
+            LLL: 'D [a viz] MMMM YYYY HH:mm',
+            LLLL: 'dddd, D [a viz] MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Hiziv da] LT',
+            nextDay: '[Warcʼhoazh da] LT',
+            nextWeek: 'dddd [da] LT',
+            lastDay: '[Decʼh da] LT',
+            lastWeek: 'dddd [paset da] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'a-benn %s',
+            past: '%s ʼzo',
+            s: 'un nebeud segondennoù',
+            ss: '%d eilenn',
+            m: 'ur vunutenn',
+            mm: relativeTimeWithMutation,
+            h: 'un eur',
+            hh: '%d eur',
+            d: 'un devezh',
+            dd: relativeTimeWithMutation,
+            M: 'ur miz',
+            MM: relativeTimeWithMutation,
+            y: 'ur bloaz',
+            yy: specialMutationForYears,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(añ|vet)/,
+        ordinal: function (number) {
+            var output = number === 1 ? 'añ' : 'vet';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+        meridiemParse: /a.m.|g.m./, // goude merenn | a-raok merenn
+        isPM: function (token) {
+            return token === 'g.m.';
+        },
+        meridiem: function (hour, minute, isLower) {
+            return hour < 12 ? 'a.m.' : 'g.m.';
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function processRelativeTime(number, withoutSuffix, key, isFuture) {
+        switch (key) {
+            case 'm':
+                return withoutSuffix
+                    ? 'jedna minuta'
+                    : isFuture
+                      ? 'jednu minutu'
+                      : 'jedne minute';
+        }
+    }
+
+    function translate(number, withoutSuffix, key) {
+        var result = number + ' ';
+        switch (key) {
+            case 'ss':
+                if (number === 1) {
+                    result += 'sekunda';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'sekunde';
+                } else {
+                    result += 'sekundi';
+                }
+                return result;
+            case 'mm':
+                if (number === 1) {
+                    result += 'minuta';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'minute';
+                } else {
+                    result += 'minuta';
+                }
+                return result;
+            case 'h':
+                return withoutSuffix ? 'jedan sat' : 'jedan sat';
+            case 'hh':
+                if (number === 1) {
+                    result += 'sat';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'sata';
+                } else {
+                    result += 'sati';
+                }
+                return result;
+            case 'dd':
+                if (number === 1) {
+                    result += 'dan';
+                } else {
+                    result += 'dana';
+                }
+                return result;
+            case 'MM':
+                if (number === 1) {
+                    result += 'mjesec';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'mjeseca';
+                } else {
+                    result += 'mjeseci';
+                }
+                return result;
+            case 'yy':
+                if (number === 1) {
+                    result += 'godina';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'godine';
+                } else {
+                    result += 'godina';
+                }
+                return result;
+        }
+    }
+
+    hooks.defineLocale('bs', {
+        months: 'januar_februar_mart_april_maj_juni_juli_august_septembar_oktobar_novembar_decembar'.split(
+            '_'
+        ),
+        monthsShort:
+            'jan._feb._mar._apr._maj._jun._jul._aug._sep._okt._nov._dec.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'nedjelja_ponedjeljak_utorak_srijeda_četvrtak_petak_subota'.split(
+            '_'
+        ),
+        weekdaysShort: 'ned._pon._uto._sri._čet._pet._sub.'.split('_'),
+        weekdaysMin: 'ne_po_ut_sr_če_pe_su'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY H:mm',
+            LLLL: 'dddd, D. MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[danas u] LT',
+            nextDay: '[sutra u] LT',
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[u] [nedjelju] [u] LT';
+                    case 3:
+                        return '[u] [srijedu] [u] LT';
+                    case 6:
+                        return '[u] [subotu] [u] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[u] dddd [u] LT';
+                }
+            },
+            lastDay: '[jučer u] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                    case 3:
+                        return '[prošlu] dddd [u] LT';
+                    case 6:
+                        return '[prošle] [subote] [u] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[prošli] dddd [u] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'za %s',
+            past: 'prije %s',
+            s: 'par sekundi',
+            ss: translate,
+            m: processRelativeTime,
+            mm: translate,
+            h: translate,
+            hh: translate,
+            d: 'dan',
+            dd: translate,
+            M: 'mjesec',
+            MM: translate,
+            y: 'godinu',
+            yy: translate,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('ca', {
+        months: {
+            standalone:
+                'gener_febrer_març_abril_maig_juny_juliol_agost_setembre_octubre_novembre_desembre'.split(
+                    '_'
+                ),
+            format: "de gener_de febrer_de març_d'abril_de maig_de juny_de juliol_d'agost_de setembre_d'octubre_de novembre_de desembre".split(
+                '_'
+            ),
+            isFormat: /D[oD]?(\s)+MMMM/,
+        },
+        monthsShort:
+            'gen._febr._març_abr._maig_juny_jul._ag._set._oct._nov._des.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays:
+            'diumenge_dilluns_dimarts_dimecres_dijous_divendres_dissabte'.split(
+                '_'
+            ),
+        weekdaysShort: 'dg._dl._dt._dc._dj._dv._ds.'.split('_'),
+        weekdaysMin: 'dg_dl_dt_dc_dj_dv_ds'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM [de] YYYY',
+            ll: 'D MMM YYYY',
+            LLL: 'D MMMM [de] YYYY [a les] H:mm',
+            lll: 'D MMM YYYY, H:mm',
+            LLLL: 'dddd D MMMM [de] YYYY [a les] H:mm',
+            llll: 'ddd D MMM YYYY, H:mm',
+        },
+        calendar: {
+            sameDay: function () {
+                return '[avui a ' + (this.hours() !== 1 ? 'les' : 'la') + '] LT';
+            },
+            nextDay: function () {
+                return '[demà a ' + (this.hours() !== 1 ? 'les' : 'la') + '] LT';
+            },
+            nextWeek: function () {
+                return 'dddd [a ' + (this.hours() !== 1 ? 'les' : 'la') + '] LT';
+            },
+            lastDay: function () {
+                return '[ahir a ' + (this.hours() !== 1 ? 'les' : 'la') + '] LT';
+            },
+            lastWeek: function () {
+                return (
+                    '[el] dddd [passat a ' +
+                    (this.hours() !== 1 ? 'les' : 'la') +
+                    '] LT'
+                );
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: "d'aquí %s",
+            past: 'fa %s',
+            s: 'uns segons',
+            ss: '%d segons',
+            m: 'un minut',
+            mm: '%d minuts',
+            h: 'una hora',
+            hh: '%d hores',
+            d: 'un dia',
+            dd: '%d dies',
+            M: 'un mes',
+            MM: '%d mesos',
+            y: 'un any',
+            yy: '%d anys',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(r|n|t|è|a)/,
+        ordinal: function (number, period) {
+            var output =
+                number === 1
+                    ? 'r'
+                    : number === 2
+                      ? 'n'
+                      : number === 3
+                        ? 'r'
+                        : number === 4
+                          ? 't'
+                          : 'è';
+            if (period === 'w' || period === 'W') {
+                output = 'a';
+            }
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var months$4 = {
+            standalone:
+                'leden_únor_březen_duben_květen_červen_červenec_srpen_září_říjen_listopad_prosinec'.split(
+                    '_'
+                ),
+            format: 'ledna_února_března_dubna_května_června_července_srpna_září_října_listopadu_prosince'.split(
+                '_'
+            ),
+            isFormat: /DD?[o.]?(\[[^\[\]]*\]|\s)+MMMM/,
+        },
+        monthsShort = 'led_úno_bře_dub_kvě_čvn_čvc_srp_zář_říj_lis_pro'.split('_'),
+        monthsParse$1 = [
+            /^led/i,
+            /^úno/i,
+            /^bře/i,
+            /^dub/i,
+            /^kvě/i,
+            /^(čvn|červen$|června)/i,
+            /^(čvc|červenec|července)/i,
+            /^srp/i,
+            /^zář/i,
+            /^říj/i,
+            /^lis/i,
+            /^pro/i,
+        ],
+        // NOTE: 'červen' is substring of 'červenec'; therefore 'červenec' must precede 'červen' in the regex to be fully matched.
+        // Otherwise parser matches '1. červenec' as '1. červen' + 'ec'.
+        monthsRegex$2 =
+            /^(leden|únor|březen|duben|květen|červenec|července|červen|června|srpen|září|říjen|listopad|prosinec|led|úno|bře|dub|kvě|čvn|čvc|srp|zář|říj|lis|pro)/i;
+
+    function plural$1(n) {
+        return n > 1 && n < 5 && ~~(n / 10) !== 1;
+    }
+    function translate$1(number, withoutSuffix, key, isFuture) {
+        var result = number + ' ';
+        switch (key) {
+            case 's': // a few seconds / in a few seconds / a few seconds ago
+                return withoutSuffix || isFuture ? 'pár sekund' : 'pár sekundami';
+            case 'ss': // 9 seconds / in 9 seconds / 9 seconds ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural$1(number) ? 'sekundy' : 'sekund');
+                } else {
+                    return result + 'sekundami';
+                }
+            case 'm': // a minute / in a minute / a minute ago
+                return withoutSuffix ? 'minuta' : isFuture ? 'minutu' : 'minutou';
+            case 'mm': // 9 minutes / in 9 minutes / 9 minutes ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural$1(number) ? 'minuty' : 'minut');
+                } else {
+                    return result + 'minutami';
+                }
+            case 'h': // an hour / in an hour / an hour ago
+                return withoutSuffix ? 'hodina' : isFuture ? 'hodinu' : 'hodinou';
+            case 'hh': // 9 hours / in 9 hours / 9 hours ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural$1(number) ? 'hodiny' : 'hodin');
+                } else {
+                    return result + 'hodinami';
+                }
+            case 'd': // a day / in a day / a day ago
+                return withoutSuffix || isFuture ? 'den' : 'dnem';
+            case 'dd': // 9 days / in 9 days / 9 days ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural$1(number) ? 'dny' : 'dní');
+                } else {
+                    return result + 'dny';
+                }
+            case 'M': // a month / in a month / a month ago
+                return withoutSuffix || isFuture ? 'měsíc' : 'měsícem';
+            case 'MM': // 9 months / in 9 months / 9 months ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural$1(number) ? 'měsíce' : 'měsíců');
+                } else {
+                    return result + 'měsíci';
+                }
+            case 'y': // a year / in a year / a year ago
+                return withoutSuffix || isFuture ? 'rok' : 'rokem';
+            case 'yy': // 9 years / in 9 years / 9 years ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural$1(number) ? 'roky' : 'let');
+                } else {
+                    return result + 'lety';
+                }
+        }
+    }
+
+    hooks.defineLocale('cs', {
+        months: months$4,
+        monthsShort: monthsShort,
+        monthsRegex: monthsRegex$2,
+        monthsShortRegex: monthsRegex$2,
+        // NOTE: 'červen' is substring of 'červenec'; therefore 'červenec' must precede 'červen' in the regex to be fully matched.
+        // Otherwise parser matches '1. červenec' as '1. červen' + 'ec'.
+        monthsStrictRegex:
+            /^(leden|ledna|února|únor|březen|března|duben|dubna|květen|května|červenec|července|červen|června|srpen|srpna|září|říjen|října|listopadu|listopad|prosinec|prosince)/i,
+        monthsShortStrictRegex:
+            /^(led|úno|bře|dub|kvě|čvn|čvc|srp|zář|říj|lis|pro)/i,
+        monthsParse: monthsParse$1,
+        longMonthsParse: monthsParse$1,
+        shortMonthsParse: monthsParse$1,
+        weekdays: 'neděle_pondělí_úterý_středa_čtvrtek_pátek_sobota'.split('_'),
+        weekdaysShort: 'ne_po_út_st_čt_pá_so'.split('_'),
+        weekdaysMin: 'ne_po_út_st_čt_pá_so'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY H:mm',
+            LLLL: 'dddd D. MMMM YYYY H:mm',
+            l: 'D. M. YYYY',
+        },
+        calendar: {
+            sameDay: '[dnes v] LT',
+            nextDay: '[zítra v] LT',
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[v neděli v] LT';
+                    case 1:
+                    case 2:
+                        return '[v] dddd [v] LT';
+                    case 3:
+                        return '[ve středu v] LT';
+                    case 4:
+                        return '[ve čtvrtek v] LT';
+                    case 5:
+                        return '[v pátek v] LT';
+                    case 6:
+                        return '[v sobotu v] LT';
+                }
+            },
+            lastDay: '[včera v] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[minulou neděli v] LT';
+                    case 1:
+                    case 2:
+                        return '[minulé] dddd [v] LT';
+                    case 3:
+                        return '[minulou středu v] LT';
+                    case 4:
+                    case 5:
+                        return '[minulý] dddd [v] LT';
+                    case 6:
+                        return '[minulou sobotu v] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'za %s',
+            past: 'před %s',
+            s: translate$1,
+            ss: translate$1,
+            m: translate$1,
+            mm: translate$1,
+            h: translate$1,
+            hh: translate$1,
+            d: translate$1,
+            dd: translate$1,
+            M: translate$1,
+            MM: translate$1,
+            y: translate$1,
+            yy: translate$1,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('cv', {
+        months: 'кӑрлач_нарӑс_пуш_ака_май_ҫӗртме_утӑ_ҫурла_авӑн_юпа_чӳк_раштав'.split(
+            '_'
+        ),
+        monthsShort: 'кӑр_нар_пуш_ака_май_ҫӗр_утӑ_ҫур_авн_юпа_чӳк_раш'.split('_'),
+        weekdays:
+            'вырсарникун_тунтикун_ытларикун_юнкун_кӗҫнерникун_эрнекун_шӑматкун'.split(
+                '_'
+            ),
+        weekdaysShort: 'выр_тун_ытл_юн_кӗҫ_эрн_шӑм'.split('_'),
+        weekdaysMin: 'вр_тн_ыт_юн_кҫ_эр_шм'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD-MM-YYYY',
+            LL: 'YYYY [ҫулхи] MMMM [уйӑхӗн] D[-мӗшӗ]',
+            LLL: 'YYYY [ҫулхи] MMMM [уйӑхӗн] D[-мӗшӗ], HH:mm',
+            LLLL: 'dddd, YYYY [ҫулхи] MMMM [уйӑхӗн] D[-мӗшӗ], HH:mm',
+        },
+        calendar: {
+            sameDay: '[Паян] LT [сехетре]',
+            nextDay: '[Ыран] LT [сехетре]',
+            lastDay: '[Ӗнер] LT [сехетре]',
+            nextWeek: '[Ҫитес] dddd LT [сехетре]',
+            lastWeek: '[Иртнӗ] dddd LT [сехетре]',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: function (output) {
+                var affix = /сехет$/i.exec(output)
+                    ? 'рен'
+                    : /ҫул$/i.exec(output)
+                      ? 'тан'
+                      : 'ран';
+                return output + affix;
+            },
+            past: '%s каялла',
+            s: 'пӗр-ик ҫеккунт',
+            ss: '%d ҫеккунт',
+            m: 'пӗр минут',
+            mm: '%d минут',
+            h: 'пӗр сехет',
+            hh: '%d сехет',
+            d: 'пӗр кун',
+            dd: '%d кун',
+            M: 'пӗр уйӑх',
+            MM: '%d уйӑх',
+            y: 'пӗр ҫул',
+            yy: '%d ҫул',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-мӗш/,
+        ordinal: '%d-мӗш',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('cy', {
+        months: 'Ionawr_Chwefror_Mawrth_Ebrill_Mai_Mehefin_Gorffennaf_Awst_Medi_Hydref_Tachwedd_Rhagfyr'.split(
+            '_'
+        ),
+        monthsShort: 'Ion_Chwe_Maw_Ebr_Mai_Meh_Gor_Aws_Med_Hyd_Tach_Rhag'.split(
+            '_'
+        ),
+        weekdays:
+            'Dydd Sul_Dydd Llun_Dydd Mawrth_Dydd Mercher_Dydd Iau_Dydd Gwener_Dydd Sadwrn'.split(
+                '_'
+            ),
+        weekdaysShort: 'Sul_Llun_Maw_Mer_Iau_Gwe_Sad'.split('_'),
+        weekdaysMin: 'Su_Ll_Ma_Me_Ia_Gw_Sa'.split('_'),
+        weekdaysParseExact: true,
+        // time formats are the same as en-gb
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Heddiw am] LT',
+            nextDay: '[Yfory am] LT',
+            nextWeek: 'dddd [am] LT',
+            lastDay: '[Ddoe am] LT',
+            lastWeek: 'dddd [diwethaf am] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'mewn %s',
+            past: '%s yn ôl',
+            s: 'ychydig eiliadau',
+            ss: '%d eiliad',
+            m: 'munud',
+            mm: '%d munud',
+            h: 'awr',
+            hh: '%d awr',
+            d: 'diwrnod',
+            dd: '%d diwrnod',
+            M: 'mis',
+            MM: '%d mis',
+            y: 'blwyddyn',
+            yy: '%d flynedd',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(fed|ain|af|il|ydd|ed|eg)/,
+        // traditional ordinal numbers above 31 are not commonly used in colloquial Welsh
+        ordinal: function (number) {
+            var b = number,
+                output = '',
+                lookup = [
+                    '',
+                    'af',
+                    'il',
+                    'ydd',
+                    'ydd',
+                    'ed',
+                    'ed',
+                    'ed',
+                    'fed',
+                    'fed',
+                    'fed', // 1af to 10fed
+                    'eg',
+                    'fed',
+                    'eg',
+                    'eg',
+                    'fed',
+                    'eg',
+                    'eg',
+                    'fed',
+                    'eg',
+                    'fed', // 11eg to 20fed
+                ];
+            if (b > 20) {
+                if (b === 40 || b === 50 || b === 60 || b === 80 || b === 100) {
+                    output = 'fed'; // not 30ain, 70ain or 90ain
+                } else {
+                    output = 'ain';
+                }
+            } else if (b > 0) {
+                output = lookup[b];
+            }
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('da', {
+        months: 'januar_februar_marts_april_maj_juni_juli_august_september_oktober_november_december'.split(
+            '_'
+        ),
+        monthsShort: 'jan_feb_mar_apr_maj_jun_jul_aug_sep_okt_nov_dec'.split('_'),
+        weekdays: 'søndag_mandag_tirsdag_onsdag_torsdag_fredag_lørdag'.split('_'),
+        weekdaysShort: 'søn_man_tir_ons_tor_fre_lør'.split('_'),
+        weekdaysMin: 'sø_ma_ti_on_to_fr_lø'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY HH:mm',
+            LLLL: 'dddd [d.] D. MMMM YYYY [kl.] HH:mm',
+        },
+        calendar: {
+            sameDay: '[i dag kl.] LT',
+            nextDay: '[i morgen kl.] LT',
+            nextWeek: 'på dddd [kl.] LT',
+            lastDay: '[i går kl.] LT',
+            lastWeek: '[i] dddd[s kl.] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'om %s',
+            past: '%s siden',
+            s: 'få sekunder',
+            ss: '%d sekunder',
+            m: 'et minut',
+            mm: '%d minutter',
+            h: 'en time',
+            hh: '%d timer',
+            d: 'en dag',
+            dd: '%d dage',
+            M: 'en måned',
+            MM: '%d måneder',
+            y: 'et år',
+            yy: '%d år',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function processRelativeTime$1(number, withoutSuffix, key, isFuture) {
+        var format = {
+            m: ['eine Minute', 'einer Minute'],
+            h: ['eine Stunde', 'einer Stunde'],
+            d: ['ein Tag', 'einem Tag'],
+            dd: [number + ' Tage', number + ' Tagen'],
+            w: ['eine Woche', 'einer Woche'],
+            M: ['ein Monat', 'einem Monat'],
+            MM: [number + ' Monate', number + ' Monaten'],
+            y: ['ein Jahr', 'einem Jahr'],
+            yy: [number + ' Jahre', number + ' Jahren'],
+        };
+        return withoutSuffix ? format[key][0] : format[key][1];
+    }
+
+    hooks.defineLocale('de-at', {
+        months: 'Jänner_Februar_März_April_Mai_Juni_Juli_August_September_Oktober_November_Dezember'.split(
+            '_'
+        ),
+        monthsShort:
+            'Jän._Feb._März_Apr._Mai_Juni_Juli_Aug._Sep._Okt._Nov._Dez.'.split('_'),
+        monthsParseExact: true,
+        weekdays:
+            'Sonntag_Montag_Dienstag_Mittwoch_Donnerstag_Freitag_Samstag'.split(
+                '_'
+            ),
+        weekdaysShort: 'So._Mo._Di._Mi._Do._Fr._Sa.'.split('_'),
+        weekdaysMin: 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY HH:mm',
+            LLLL: 'dddd, D. MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[heute um] LT [Uhr]',
+            sameElse: 'L',
+            nextDay: '[morgen um] LT [Uhr]',
+            nextWeek: 'dddd [um] LT [Uhr]',
+            lastDay: '[gestern um] LT [Uhr]',
+            lastWeek: '[letzten] dddd [um] LT [Uhr]',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: 'vor %s',
+            s: 'ein paar Sekunden',
+            ss: '%d Sekunden',
+            m: processRelativeTime$1,
+            mm: '%d Minuten',
+            h: processRelativeTime$1,
+            hh: '%d Stunden',
+            d: processRelativeTime$1,
+            dd: processRelativeTime$1,
+            w: processRelativeTime$1,
+            ww: '%d Wochen',
+            M: processRelativeTime$1,
+            MM: processRelativeTime$1,
+            y: processRelativeTime$1,
+            yy: processRelativeTime$1,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function processRelativeTime$2(number, withoutSuffix, key, isFuture) {
+        var format = {
+            m: ['eine Minute', 'einer Minute'],
+            h: ['eine Stunde', 'einer Stunde'],
+            d: ['ein Tag', 'einem Tag'],
+            dd: [number + ' Tage', number + ' Tagen'],
+            w: ['eine Woche', 'einer Woche'],
+            M: ['ein Monat', 'einem Monat'],
+            MM: [number + ' Monate', number + ' Monaten'],
+            y: ['ein Jahr', 'einem Jahr'],
+            yy: [number + ' Jahre', number + ' Jahren'],
+        };
+        return withoutSuffix ? format[key][0] : format[key][1];
+    }
+
+    hooks.defineLocale('de-ch', {
+        months: 'Januar_Februar_März_April_Mai_Juni_Juli_August_September_Oktober_November_Dezember'.split(
+            '_'
+        ),
+        monthsShort:
+            'Jan._Feb._März_Apr._Mai_Juni_Juli_Aug._Sep._Okt._Nov._Dez.'.split('_'),
+        monthsParseExact: true,
+        weekdays:
+            'Sonntag_Montag_Dienstag_Mittwoch_Donnerstag_Freitag_Samstag'.split(
+                '_'
+            ),
+        weekdaysShort: 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
+        weekdaysMin: 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY HH:mm',
+            LLLL: 'dddd, D. MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[heute um] LT [Uhr]',
+            sameElse: 'L',
+            nextDay: '[morgen um] LT [Uhr]',
+            nextWeek: 'dddd [um] LT [Uhr]',
+            lastDay: '[gestern um] LT [Uhr]',
+            lastWeek: '[letzten] dddd [um] LT [Uhr]',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: 'vor %s',
+            s: 'ein paar Sekunden',
+            ss: '%d Sekunden',
+            m: processRelativeTime$2,
+            mm: '%d Minuten',
+            h: processRelativeTime$2,
+            hh: '%d Stunden',
+            d: processRelativeTime$2,
+            dd: processRelativeTime$2,
+            w: processRelativeTime$2,
+            ww: '%d Wochen',
+            M: processRelativeTime$2,
+            MM: processRelativeTime$2,
+            y: processRelativeTime$2,
+            yy: processRelativeTime$2,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function processRelativeTime$3(number, withoutSuffix, key, isFuture) {
+        var format = {
+            m: ['eine Minute', 'einer Minute'],
+            h: ['eine Stunde', 'einer Stunde'],
+            d: ['ein Tag', 'einem Tag'],
+            dd: [number + ' Tage', number + ' Tagen'],
+            w: ['eine Woche', 'einer Woche'],
+            M: ['ein Monat', 'einem Monat'],
+            MM: [number + ' Monate', number + ' Monaten'],
+            y: ['ein Jahr', 'einem Jahr'],
+            yy: [number + ' Jahre', number + ' Jahren'],
+        };
+        return withoutSuffix ? format[key][0] : format[key][1];
+    }
+
+    hooks.defineLocale('de', {
+        months: 'Januar_Februar_März_April_Mai_Juni_Juli_August_September_Oktober_November_Dezember'.split(
+            '_'
+        ),
+        monthsShort:
+            'Jan._Feb._März_Apr._Mai_Juni_Juli_Aug._Sep._Okt._Nov._Dez.'.split('_'),
+        monthsParseExact: true,
+        weekdays:
+            'Sonntag_Montag_Dienstag_Mittwoch_Donnerstag_Freitag_Samstag'.split(
+                '_'
+            ),
+        weekdaysShort: 'So._Mo._Di._Mi._Do._Fr._Sa.'.split('_'),
+        weekdaysMin: 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY HH:mm',
+            LLLL: 'dddd, D. MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[heute um] LT [Uhr]',
+            sameElse: 'L',
+            nextDay: '[morgen um] LT [Uhr]',
+            nextWeek: 'dddd [um] LT [Uhr]',
+            lastDay: '[gestern um] LT [Uhr]',
+            lastWeek: '[letzten] dddd [um] LT [Uhr]',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: 'vor %s',
+            s: 'ein paar Sekunden',
+            ss: '%d Sekunden',
+            m: processRelativeTime$3,
+            mm: '%d Minuten',
+            h: processRelativeTime$3,
+            hh: '%d Stunden',
+            d: processRelativeTime$3,
+            dd: processRelativeTime$3,
+            w: processRelativeTime$3,
+            ww: '%d Wochen',
+            M: processRelativeTime$3,
+            MM: processRelativeTime$3,
+            y: processRelativeTime$3,
+            yy: processRelativeTime$3,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var months$5 = [
+            'ޖެނުއަރީ',
+            'ފެބްރުއަރީ',
+            'މާރިޗު',
+            'އޭޕްރީލު',
+            'މޭ',
+            'ޖޫން',
+            'ޖުލައި',
+            'އޯގަސްޓު',
+            'ސެޕްޓެމްބަރު',
+            'އޮކްޓޯބަރު',
+            'ނޮވެމްބަރު',
+            'ޑިސެމްބަރު',
+        ],
+        weekdays = [
+            'އާދިއްތަ',
+            'ހޯމަ',
+            'އަންގާރަ',
+            'ބުދަ',
+            'ބުރާސްފަތި',
+            'ހުކުރު',
+            'ހޮނިހިރު',
+        ];
+
+    hooks.defineLocale('dv', {
+        months: months$5,
+        monthsShort: months$5,
+        weekdays: weekdays,
+        weekdaysShort: weekdays,
+        weekdaysMin: 'އާދި_ހޯމަ_އަން_ބުދަ_ބުރާ_ހުކު_ހޮނި'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'D/M/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /މކ|މފ/,
+        isPM: function (input) {
+            return 'މފ' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'މކ';
+            } else {
+                return 'މފ';
+            }
+        },
+        calendar: {
+            sameDay: '[މިއަދު] LT',
+            nextDay: '[މާދަމާ] LT',
+            nextWeek: 'dddd LT',
+            lastDay: '[އިއްޔެ] LT',
+            lastWeek: '[ފާއިތުވި] dddd LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'ތެރޭގައި %s',
+            past: 'ކުރިން %s',
+            s: 'ސިކުންތުކޮޅެއް',
+            ss: 'd% ސިކުންތު',
+            m: 'މިނިޓެއް',
+            mm: 'މިނިޓު %d',
+            h: 'ގަޑިއިރެއް',
+            hh: 'ގަޑިއިރު %d',
+            d: 'ދުވަހެއް',
+            dd: 'ދުވަސް %d',
+            M: 'މަހެއް',
+            MM: 'މަސް %d',
+            y: 'އަހަރެއް',
+            yy: 'އަހަރު %d',
+        },
+        preparse: function (string) {
+            return string.replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string.replace(/,/g, '،');
+        },
+        week: {
+            dow: 7, // Sunday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function isFunction$1(input) {
+        return (
+            (typeof Function !== 'undefined' && input instanceof Function) ||
+            Object.prototype.toString.call(input) === '[object Function]'
+        );
+    }
+
+    hooks.defineLocale('el', {
+        monthsNominativeEl:
+            'Ιανουάριος_Φεβρουάριος_Μάρτιος_Απρίλιος_Μάιος_Ιούνιος_Ιούλιος_Αύγουστος_Σεπτέμβριος_Οκτώβριος_Νοέμβριος_Δεκέμβριος'.split(
+                '_'
+            ),
+        monthsGenitiveEl:
+            'Ιανουαρίου_Φεβρουαρίου_Μαρτίου_Απριλίου_Μαΐου_Ιουνίου_Ιουλίου_Αυγούστου_Σεπτεμβρίου_Οκτωβρίου_Νοεμβρίου_Δεκεμβρίου'.split(
+                '_'
+            ),
+        months: function (momentToFormat, format) {
+            if (!momentToFormat) {
+                return this._monthsNominativeEl;
+            } else if (
+                typeof format === 'string' &&
+                /D/.test(format.substring(0, format.indexOf('MMMM')))
+            ) {
+                // if there is a day number before 'MMMM'
+                return this._monthsGenitiveEl[momentToFormat.month()];
+            } else {
+                return this._monthsNominativeEl[momentToFormat.month()];
+            }
+        },
+        monthsShort: 'Ιαν_Φεβ_Μαρ_Απρ_Μαϊ_Ιουν_Ιουλ_Αυγ_Σεπ_Οκτ_Νοε_Δεκ'.split('_'),
+        weekdays: 'Κυριακή_Δευτέρα_Τρίτη_Τετάρτη_Πέμπτη_Παρασκευή_Σάββατο'.split(
+            '_'
+        ),
+        weekdaysShort: 'Κυρ_Δευ_Τρι_Τετ_Πεμ_Παρ_Σαβ'.split('_'),
+        weekdaysMin: 'Κυ_Δε_Τρ_Τε_Πε_Πα_Σα'.split('_'),
+        meridiem: function (hours, minutes, isLower) {
+            if (hours > 11) {
+                return isLower ? 'μμ' : 'ΜΜ';
+            } else {
+                return isLower ? 'πμ' : 'ΠΜ';
+            }
+        },
+        isPM: function (input) {
+            return (input + '').toLowerCase()[0] === 'μ';
+        },
+        meridiemParse: /[ΠΜ]\.?Μ?\.?/i,
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY h:mm A',
+            LLLL: 'dddd, D MMMM YYYY h:mm A',
+        },
+        calendarEl: {
+            sameDay: '[Σήμερα {}] LT',
+            nextDay: '[Αύριο {}] LT',
+            nextWeek: 'dddd [{}] LT',
+            lastDay: '[Χθες {}] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 6:
+                        return '[το προηγούμενο] dddd [{}] LT';
+                    default:
+                        return '[την προηγούμενη] dddd [{}] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        calendar: function (key, mom) {
+            var output = this._calendarEl[key],
+                hours = mom && mom.hours();
+            if (isFunction$1(output)) {
+                output = output.apply(mom);
+            }
+            return output.replace('{}', hours % 12 === 1 ? 'στη' : 'στις');
+        },
+        relativeTime: {
+            future: 'σε %s',
+            past: '%s πριν',
+            s: 'λίγα δευτερόλεπτα',
+            ss: '%d δευτερόλεπτα',
+            m: 'ένα λεπτό',
+            mm: '%d λεπτά',
+            h: 'μία ώρα',
+            hh: '%d ώρες',
+            d: 'μία μέρα',
+            dd: '%d μέρες',
+            M: 'ένας μήνας',
+            MM: '%d μήνες',
+            y: 'ένας χρόνος',
+            yy: '%d χρόνια',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}η/,
+        ordinal: '%dη',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4st is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('en-au', {
+        months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY h:mm A',
+            LLLL: 'dddd, D MMMM YYYY h:mm A',
+        },
+        calendar: {
+            sameDay: '[Today at] LT',
+            nextDay: '[Tomorrow at] LT',
+            nextWeek: 'dddd [at] LT',
+            lastDay: '[Yesterday at] LT',
+            lastWeek: '[Last] dddd [at] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: '%s ago',
+            s: 'a few seconds',
+            ss: '%d seconds',
+            m: 'a minute',
+            mm: '%d minutes',
+            h: 'an hour',
+            hh: '%d hours',
+            d: 'a day',
+            dd: '%d days',
+            M: 'a month',
+            MM: '%d months',
+            y: 'a year',
+            yy: '%d years',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('en-ca', {
+        months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'YYYY-MM-DD',
+            LL: 'MMMM D, YYYY',
+            LLL: 'MMMM D, YYYY h:mm A',
+            LLLL: 'dddd, MMMM D, YYYY h:mm A',
+        },
+        calendar: {
+            sameDay: '[Today at] LT',
+            nextDay: '[Tomorrow at] LT',
+            nextWeek: 'dddd [at] LT',
+            lastDay: '[Yesterday at] LT',
+            lastWeek: '[Last] dddd [at] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: '%s ago',
+            s: 'a few seconds',
+            ss: '%d seconds',
+            m: 'a minute',
+            mm: '%d minutes',
+            h: 'an hour',
+            hh: '%d hours',
+            d: 'a day',
+            dd: '%d days',
+            M: 'a month',
+            MM: '%d months',
+            y: 'a year',
+            yy: '%d years',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('en-gb', {
+        months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Today at] LT',
+            nextDay: '[Tomorrow at] LT',
+            nextWeek: 'dddd [at] LT',
+            lastDay: '[Yesterday at] LT',
+            lastWeek: '[Last] dddd [at] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: '%s ago',
+            s: 'a few seconds',
+            ss: '%d seconds',
+            m: 'a minute',
+            mm: '%d minutes',
+            h: 'an hour',
+            hh: '%d hours',
+            d: 'a day',
+            dd: '%d days',
+            M: 'a month',
+            MM: '%d months',
+            y: 'a year',
+            yy: '%d years',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('en-ie', {
+        months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Today at] LT',
+            nextDay: '[Tomorrow at] LT',
+            nextWeek: 'dddd [at] LT',
+            lastDay: '[Yesterday at] LT',
+            lastWeek: '[Last] dddd [at] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: '%s ago',
+            s: 'a few seconds',
+            ss: '%d seconds',
+            m: 'a minute',
+            mm: '%d minutes',
+            h: 'an hour',
+            hh: '%d hours',
+            d: 'a day',
+            dd: '%d days',
+            M: 'a month',
+            MM: '%d months',
+            y: 'a year',
+            yy: '%d years',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('en-il', {
+        months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Today at] LT',
+            nextDay: '[Tomorrow at] LT',
+            nextWeek: 'dddd [at] LT',
+            lastDay: '[Yesterday at] LT',
+            lastWeek: '[Last] dddd [at] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: '%s ago',
+            s: 'a few seconds',
+            ss: '%d seconds',
+            m: 'a minute',
+            mm: '%d minutes',
+            h: 'an hour',
+            hh: '%d hours',
+            d: 'a day',
+            dd: '%d days',
+            M: 'a month',
+            MM: '%d months',
+            y: 'a year',
+            yy: '%d years',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('en-in', {
+        months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY h:mm A',
+            LLLL: 'dddd, D MMMM YYYY h:mm A',
+        },
+        calendar: {
+            sameDay: '[Today at] LT',
+            nextDay: '[Tomorrow at] LT',
+            nextWeek: 'dddd [at] LT',
+            lastDay: '[Yesterday at] LT',
+            lastWeek: '[Last] dddd [at] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: '%s ago',
+            s: 'a few seconds',
+            ss: '%d seconds',
+            m: 'a minute',
+            mm: '%d minutes',
+            h: 'an hour',
+            hh: '%d hours',
+            d: 'a day',
+            dd: '%d days',
+            M: 'a month',
+            MM: '%d months',
+            y: 'a year',
+            yy: '%d years',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 1st is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('en-nz', {
+        months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY h:mm A',
+            LLLL: 'dddd, D MMMM YYYY h:mm A',
+        },
+        calendar: {
+            sameDay: '[Today at] LT',
+            nextDay: '[Tomorrow at] LT',
+            nextWeek: 'dddd [at] LT',
+            lastDay: '[Yesterday at] LT',
+            lastWeek: '[Last] dddd [at] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: '%s ago',
+            s: 'a few seconds',
+            ss: '%d seconds',
+            m: 'a minute',
+            mm: '%d minutes',
+            h: 'an hour',
+            hh: '%d hours',
+            d: 'a day',
+            dd: '%d days',
+            M: 'a month',
+            MM: '%d months',
+            y: 'a year',
+            yy: '%d years',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('en-sg', {
+        months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Today at] LT',
+            nextDay: '[Tomorrow at] LT',
+            nextWeek: 'dddd [at] LT',
+            lastDay: '[Yesterday at] LT',
+            lastWeek: '[Last] dddd [at] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'in %s',
+            past: '%s ago',
+            s: 'a few seconds',
+            ss: '%d seconds',
+            m: 'a minute',
+            mm: '%d minutes',
+            h: 'an hour',
+            hh: '%d hours',
+            d: 'a day',
+            dd: '%d days',
+            M: 'a month',
+            MM: '%d months',
+            y: 'a year',
+            yy: '%d years',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('eo', {
+        months: 'januaro_februaro_marto_aprilo_majo_junio_julio_aŭgusto_septembro_oktobro_novembro_decembro'.split(
+            '_'
+        ),
+        monthsShort: 'jan_feb_mart_apr_maj_jun_jul_aŭg_sept_okt_nov_dec'.split('_'),
+        weekdays: 'dimanĉo_lundo_mardo_merkredo_ĵaŭdo_vendredo_sabato'.split('_'),
+        weekdaysShort: 'dim_lun_mard_merk_ĵaŭ_ven_sab'.split('_'),
+        weekdaysMin: 'di_lu_ma_me_ĵa_ve_sa'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY-MM-DD',
+            LL: '[la] D[-an de] MMMM, YYYY',
+            LLL: '[la] D[-an de] MMMM, YYYY HH:mm',
+            LLLL: 'dddd[n], [la] D[-an de] MMMM, YYYY HH:mm',
+            llll: 'ddd, [la] D[-an de] MMM, YYYY HH:mm',
+        },
+        meridiemParse: /[ap]\.t\.m/i,
+        isPM: function (input) {
+            return input.charAt(0).toLowerCase() === 'p';
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours > 11) {
+                return isLower ? 'p.t.m.' : 'P.T.M.';
+            } else {
+                return isLower ? 'a.t.m.' : 'A.T.M.';
+            }
+        },
+        calendar: {
+            sameDay: '[Hodiaŭ je] LT',
+            nextDay: '[Morgaŭ je] LT',
+            nextWeek: 'dddd[n je] LT',
+            lastDay: '[Hieraŭ je] LT',
+            lastWeek: '[pasintan] dddd[n je] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'post %s',
+            past: 'antaŭ %s',
+            s: 'kelkaj sekundoj',
+            ss: '%d sekundoj',
+            m: 'unu minuto',
+            mm: '%d minutoj',
+            h: 'unu horo',
+            hh: '%d horoj',
+            d: 'unu tago', //ne 'diurno', ĉar estas uzita por proksimumo
+            dd: '%d tagoj',
+            M: 'unu monato',
+            MM: '%d monatoj',
+            y: 'unu jaro',
+            yy: '%d jaroj',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}a/,
+        ordinal: '%da',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var monthsShortDot =
+            'ene._feb._mar._abr._may._jun._jul._ago._sep._oct._nov._dic.'.split(
+                '_'
+            ),
+        monthsShort$1 = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_'),
+        monthsParse$2 = [
+            /^ene/i,
+            /^feb/i,
+            /^mar/i,
+            /^abr/i,
+            /^may/i,
+            /^jun/i,
+            /^jul/i,
+            /^ago/i,
+            /^sep/i,
+            /^oct/i,
+            /^nov/i,
+            /^dic/i,
+        ],
+        monthsRegex$3 =
+            /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre|ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i;
+
+    hooks.defineLocale('es-do', {
+        months: 'enero_febrero_marzo_abril_mayo_junio_julio_agosto_septiembre_octubre_noviembre_diciembre'.split(
+            '_'
+        ),
+        monthsShort: function (m, format) {
+            if (!m) {
+                return monthsShortDot;
+            } else if (/-MMM-/.test(format)) {
+                return monthsShort$1[m.month()];
+            } else {
+                return monthsShortDot[m.month()];
+            }
+        },
+        monthsRegex: monthsRegex$3,
+        monthsShortRegex: monthsRegex$3,
+        monthsStrictRegex:
+            /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre)/i,
+        monthsShortStrictRegex:
+            /^(ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i,
+        monthsParse: monthsParse$2,
+        longMonthsParse: monthsParse$2,
+        shortMonthsParse: monthsParse$2,
+        weekdays: 'domingo_lunes_martes_miércoles_jueves_viernes_sábado'.split('_'),
+        weekdaysShort: 'dom._lun._mar._mié._jue._vie._sáb.'.split('_'),
+        weekdaysMin: 'do_lu_ma_mi_ju_vi_sá'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'DD/MM/YYYY',
+            LL: 'D [de] MMMM [de] YYYY',
+            LLL: 'D [de] MMMM [de] YYYY h:mm A',
+            LLLL: 'dddd, D [de] MMMM [de] YYYY h:mm A',
+        },
+        calendar: {
+            sameDay: function () {
+                return '[hoy a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            nextDay: function () {
+                return '[mañana a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            nextWeek: function () {
+                return 'dddd [a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            lastDay: function () {
+                return '[ayer a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            lastWeek: function () {
+                return (
+                    '[el] dddd [pasado a la' +
+                    (this.hours() !== 1 ? 's' : '') +
+                    '] LT'
+                );
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'en %s',
+            past: 'hace %s',
+            s: 'unos segundos',
+            ss: '%d segundos',
+            m: 'un minuto',
+            mm: '%d minutos',
+            h: 'una hora',
+            hh: '%d horas',
+            d: 'un día',
+            dd: '%d días',
+            w: 'una semana',
+            ww: '%d semanas',
+            M: 'un mes',
+            MM: '%d meses',
+            y: 'un año',
+            yy: '%d años',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var monthsShortDot$1 =
+            'ene._feb._mar._abr._may._jun._jul._ago._sep._oct._nov._dic.'.split(
+                '_'
+            ),
+        monthsShort$2 = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_'),
+        monthsParse$3 = [
+            /^ene/i,
+            /^feb/i,
+            /^mar/i,
+            /^abr/i,
+            /^may/i,
+            /^jun/i,
+            /^jul/i,
+            /^ago/i,
+            /^sep/i,
+            /^oct/i,
+            /^nov/i,
+            /^dic/i,
+        ],
+        monthsRegex$4 =
+            /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre|ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i;
+
+    hooks.defineLocale('es-mx', {
+        months: 'enero_febrero_marzo_abril_mayo_junio_julio_agosto_septiembre_octubre_noviembre_diciembre'.split(
+            '_'
+        ),
+        monthsShort: function (m, format) {
+            if (!m) {
+                return monthsShortDot$1;
+            } else if (/-MMM-/.test(format)) {
+                return monthsShort$2[m.month()];
+            } else {
+                return monthsShortDot$1[m.month()];
+            }
+        },
+        monthsRegex: monthsRegex$4,
+        monthsShortRegex: monthsRegex$4,
+        monthsStrictRegex:
+            /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre)/i,
+        monthsShortStrictRegex:
+            /^(ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i,
+        monthsParse: monthsParse$3,
+        longMonthsParse: monthsParse$3,
+        shortMonthsParse: monthsParse$3,
+        weekdays: 'domingo_lunes_martes_miércoles_jueves_viernes_sábado'.split('_'),
+        weekdaysShort: 'dom._lun._mar._mié._jue._vie._sáb.'.split('_'),
+        weekdaysMin: 'do_lu_ma_mi_ju_vi_sá'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D [de] MMMM [de] YYYY',
+            LLL: 'D [de] MMMM [de] YYYY H:mm',
+            LLLL: 'dddd, D [de] MMMM [de] YYYY H:mm',
+        },
+        calendar: {
+            sameDay: function () {
+                return '[hoy a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            nextDay: function () {
+                return '[mañana a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            nextWeek: function () {
+                return 'dddd [a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            lastDay: function () {
+                return '[ayer a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            lastWeek: function () {
+                return (
+                    '[el] dddd [pasado a la' +
+                    (this.hours() !== 1 ? 's' : '') +
+                    '] LT'
+                );
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'en %s',
+            past: 'hace %s',
+            s: 'unos segundos',
+            ss: '%d segundos',
+            m: 'un minuto',
+            mm: '%d minutos',
+            h: 'una hora',
+            hh: '%d horas',
+            d: 'un día',
+            dd: '%d días',
+            w: 'una semana',
+            ww: '%d semanas',
+            M: 'un mes',
+            MM: '%d meses',
+            y: 'un año',
+            yy: '%d años',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+        invalidDate: 'Fecha inválida',
+    });
+
+    //! moment.js locale configuration
+
+    var monthsShortDot$2 =
+            'ene._feb._mar._abr._may._jun._jul._ago._sep._oct._nov._dic.'.split(
+                '_'
+            ),
+        monthsShort$3 = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_'),
+        monthsParse$4 = [
+            /^ene/i,
+            /^feb/i,
+            /^mar/i,
+            /^abr/i,
+            /^may/i,
+            /^jun/i,
+            /^jul/i,
+            /^ago/i,
+            /^sep/i,
+            /^oct/i,
+            /^nov/i,
+            /^dic/i,
+        ],
+        monthsRegex$5 =
+            /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre|ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i;
+
+    hooks.defineLocale('es-us', {
+        months: 'enero_febrero_marzo_abril_mayo_junio_julio_agosto_septiembre_octubre_noviembre_diciembre'.split(
+            '_'
+        ),
+        monthsShort: function (m, format) {
+            if (!m) {
+                return monthsShortDot$2;
+            } else if (/-MMM-/.test(format)) {
+                return monthsShort$3[m.month()];
+            } else {
+                return monthsShortDot$2[m.month()];
+            }
+        },
+        monthsRegex: monthsRegex$5,
+        monthsShortRegex: monthsRegex$5,
+        monthsStrictRegex:
+            /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre)/i,
+        monthsShortStrictRegex:
+            /^(ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i,
+        monthsParse: monthsParse$4,
+        longMonthsParse: monthsParse$4,
+        shortMonthsParse: monthsParse$4,
+        weekdays: 'domingo_lunes_martes_miércoles_jueves_viernes_sábado'.split('_'),
+        weekdaysShort: 'dom._lun._mar._mié._jue._vie._sáb.'.split('_'),
+        weekdaysMin: 'do_lu_ma_mi_ju_vi_sá'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'MM/DD/YYYY',
+            LL: 'D [de] MMMM [de] YYYY',
+            LLL: 'D [de] MMMM [de] YYYY h:mm A',
+            LLLL: 'dddd, D [de] MMMM [de] YYYY h:mm A',
+        },
+        calendar: {
+            sameDay: function () {
+                return '[hoy a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            nextDay: function () {
+                return '[mañana a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            nextWeek: function () {
+                return 'dddd [a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            lastDay: function () {
+                return '[ayer a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            lastWeek: function () {
+                return (
+                    '[el] dddd [pasado a la' +
+                    (this.hours() !== 1 ? 's' : '') +
+                    '] LT'
+                );
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'en %s',
+            past: 'hace %s',
+            s: 'unos segundos',
+            ss: '%d segundos',
+            m: 'un minuto',
+            mm: '%d minutos',
+            h: 'una hora',
+            hh: '%d horas',
+            d: 'un día',
+            dd: '%d días',
+            w: 'una semana',
+            ww: '%d semanas',
+            M: 'un mes',
+            MM: '%d meses',
+            y: 'un año',
+            yy: '%d años',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var monthsShortDot$3 =
+            'ene._feb._mar._abr._may._jun._jul._ago._sep._oct._nov._dic.'.split(
+                '_'
+            ),
+        monthsShort$4 = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_'),
+        monthsParse$5 = [
+            /^ene/i,
+            /^feb/i,
+            /^mar/i,
+            /^abr/i,
+            /^may/i,
+            /^jun/i,
+            /^jul/i,
+            /^ago/i,
+            /^sep/i,
+            /^oct/i,
+            /^nov/i,
+            /^dic/i,
+        ],
+        monthsRegex$6 =
+            /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre|ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i;
+
+    hooks.defineLocale('es', {
+        months: 'enero_febrero_marzo_abril_mayo_junio_julio_agosto_septiembre_octubre_noviembre_diciembre'.split(
+            '_'
+        ),
+        monthsShort: function (m, format) {
+            if (!m) {
+                return monthsShortDot$3;
+            } else if (/-MMM-/.test(format)) {
+                return monthsShort$4[m.month()];
+            } else {
+                return monthsShortDot$3[m.month()];
+            }
+        },
+        monthsRegex: monthsRegex$6,
+        monthsShortRegex: monthsRegex$6,
+        monthsStrictRegex:
+            /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre)/i,
+        monthsShortStrictRegex:
+            /^(ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i,
+        monthsParse: monthsParse$5,
+        longMonthsParse: monthsParse$5,
+        shortMonthsParse: monthsParse$5,
+        weekdays: 'domingo_lunes_martes_miércoles_jueves_viernes_sábado'.split('_'),
+        weekdaysShort: 'dom._lun._mar._mié._jue._vie._sáb.'.split('_'),
+        weekdaysMin: 'do_lu_ma_mi_ju_vi_sá'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D [de] MMMM [de] YYYY',
+            LLL: 'D [de] MMMM [de] YYYY H:mm',
+            LLLL: 'dddd, D [de] MMMM [de] YYYY H:mm',
+        },
+        calendar: {
+            sameDay: function () {
+                return '[hoy a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            nextDay: function () {
+                return '[mañana a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            nextWeek: function () {
+                return 'dddd [a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            lastDay: function () {
+                return '[ayer a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+            },
+            lastWeek: function () {
+                return (
+                    '[el] dddd [pasado a la' +
+                    (this.hours() !== 1 ? 's' : '') +
+                    '] LT'
+                );
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'en %s',
+            past: 'hace %s',
+            s: 'unos segundos',
+            ss: '%d segundos',
+            m: 'un minuto',
+            mm: '%d minutos',
+            h: 'una hora',
+            hh: '%d horas',
+            d: 'un día',
+            dd: '%d días',
+            w: 'una semana',
+            ww: '%d semanas',
+            M: 'un mes',
+            MM: '%d meses',
+            y: 'un año',
+            yy: '%d años',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+        invalidDate: 'Fecha inválida',
+    });
+
+    //! moment.js locale configuration
+
+    function processRelativeTime$4(number, withoutSuffix, key, isFuture) {
+        var format = {
+            s: ['mõne sekundi', 'mõni sekund', 'paar sekundit'],
+            ss: [number + 'sekundi', number + 'sekundit'],
+            m: ['ühe minuti', 'üks minut'],
+            mm: [number + ' minuti', number + ' minutit'],
+            h: ['ühe tunni', 'tund aega', 'üks tund'],
+            hh: [number + ' tunni', number + ' tundi'],
+            d: ['ühe päeva', 'üks päev'],
+            M: ['kuu aja', 'kuu aega', 'üks kuu'],
+            MM: [number + ' kuu', number + ' kuud'],
+            y: ['ühe aasta', 'aasta', 'üks aasta'],
+            yy: [number + ' aasta', number + ' aastat'],
+        };
+        if (withoutSuffix) {
+            return format[key][2] ? format[key][2] : format[key][1];
+        }
+        return isFuture ? format[key][0] : format[key][1];
+    }
+
+    hooks.defineLocale('et', {
+        months: 'jaanuar_veebruar_märts_aprill_mai_juuni_juuli_august_september_oktoober_november_detsember'.split(
+            '_'
+        ),
+        monthsShort:
+            'jaan_veebr_märts_apr_mai_juuni_juuli_aug_sept_okt_nov_dets'.split('_'),
+        weekdays:
+            'pühapäev_esmaspäev_teisipäev_kolmapäev_neljapäev_reede_laupäev'.split(
+                '_'
+            ),
+        weekdaysShort: 'P_E_T_K_N_R_L'.split('_'),
+        weekdaysMin: 'P_E_T_K_N_R_L'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY H:mm',
+            LLLL: 'dddd, D. MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[Täna,] LT',
+            nextDay: '[Homme,] LT',
+            nextWeek: '[Järgmine] dddd LT',
+            lastDay: '[Eile,] LT',
+            lastWeek: '[Eelmine] dddd LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s pärast',
+            past: '%s tagasi',
+            s: processRelativeTime$4,
+            ss: processRelativeTime$4,
+            m: processRelativeTime$4,
+            mm: processRelativeTime$4,
+            h: processRelativeTime$4,
+            hh: processRelativeTime$4,
+            d: processRelativeTime$4,
+            dd: '%d päeva',
+            M: processRelativeTime$4,
+            MM: processRelativeTime$4,
+            y: processRelativeTime$4,
+            yy: processRelativeTime$4,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('eu', {
+        months: 'urtarrila_otsaila_martxoa_apirila_maiatza_ekaina_uztaila_abuztua_iraila_urria_azaroa_abendua'.split(
+            '_'
+        ),
+        monthsShort:
+            'urt._ots._mar._api._mai._eka._uzt._abu._ira._urr._aza._abe.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays:
+            'igandea_astelehena_asteartea_asteazkena_osteguna_ostirala_larunbata'.split(
+                '_'
+            ),
+        weekdaysShort: 'ig._al._ar._az._og._ol._lr.'.split('_'),
+        weekdaysMin: 'ig_al_ar_az_og_ol_lr'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY-MM-DD',
+            LL: 'YYYY[ko] MMMM[ren] D[a]',
+            LLL: 'YYYY[ko] MMMM[ren] D[a] HH:mm',
+            LLLL: 'dddd, YYYY[ko] MMMM[ren] D[a] HH:mm',
+            l: 'YYYY-M-D',
+            ll: 'YYYY[ko] MMM D[a]',
+            lll: 'YYYY[ko] MMM D[a] HH:mm',
+            llll: 'ddd, YYYY[ko] MMM D[a] HH:mm',
+        },
+        calendar: {
+            sameDay: '[gaur] LT[etan]',
+            nextDay: '[bihar] LT[etan]',
+            nextWeek: 'dddd LT[etan]',
+            lastDay: '[atzo] LT[etan]',
+            lastWeek: '[aurreko] dddd LT[etan]',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s barru',
+            past: 'duela %s',
+            s: 'segundo batzuk',
+            ss: '%d segundo',
+            m: 'minutu bat',
+            mm: '%d minutu',
+            h: 'ordu bat',
+            hh: '%d ordu',
+            d: 'egun bat',
+            dd: '%d egun',
+            M: 'hilabete bat',
+            MM: '%d hilabete',
+            y: 'urte bat',
+            yy: '%d urte',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$7 = {
+            1: '۱',
+            2: '۲',
+            3: '۳',
+            4: '۴',
+            5: '۵',
+            6: '۶',
+            7: '۷',
+            8: '۸',
+            9: '۹',
+            0: '۰',
+        },
+        numberMap$6 = {
+            '۱': '1',
+            '۲': '2',
+            '۳': '3',
+            '۴': '4',
+            '۵': '5',
+            '۶': '6',
+            '۷': '7',
+            '۸': '8',
+            '۹': '9',
+            '۰': '0',
+        };
+
+    hooks.defineLocale('fa', {
+        months: 'ژانویه_فوریه_مارس_آوریل_مه_ژوئن_ژوئیه_اوت_سپتامبر_اکتبر_نوامبر_دسامبر'.split(
+            '_'
+        ),
+        monthsShort:
+            'ژانویه_فوریه_مارس_آوریل_مه_ژوئن_ژوئیه_اوت_سپتامبر_اکتبر_نوامبر_دسامبر'.split(
+                '_'
+            ),
+        weekdays:
+            'یک\u200cشنبه_دوشنبه_سه\u200cشنبه_چهارشنبه_پنج\u200cشنبه_جمعه_شنبه'.split(
+                '_'
+            ),
+        weekdaysShort:
+            'یک\u200cشنبه_دوشنبه_سه\u200cشنبه_چهارشنبه_پنج\u200cشنبه_جمعه_شنبه'.split(
+                '_'
+            ),
+        weekdaysMin: 'ی_د_س_چ_پ_ج_ش'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /قبل از ظهر|بعد از ظهر/,
+        isPM: function (input) {
+            return /بعد از ظهر/.test(input);
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'قبل از ظهر';
+            } else {
+                return 'بعد از ظهر';
+            }
+        },
+        calendar: {
+            sameDay: '[امروز ساعت] LT',
+            nextDay: '[فردا ساعت] LT',
+            nextWeek: 'dddd [ساعت] LT',
+            lastDay: '[دیروز ساعت] LT',
+            lastWeek: 'dddd [پیش] [ساعت] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'در %s',
+            past: '%s پیش',
+            s: 'چند ثانیه',
+            ss: '%d ثانیه',
+            m: 'یک دقیقه',
+            mm: '%d دقیقه',
+            h: 'یک ساعت',
+            hh: '%d ساعت',
+            d: 'یک روز',
+            dd: '%d روز',
+            M: 'یک ماه',
+            MM: '%d ماه',
+            y: 'یک سال',
+            yy: '%d سال',
+        },
+        preparse: function (string) {
+            return string
+                .replace(/[۰-۹]/g, function (match) {
+                    return numberMap$6[match];
+                })
+                .replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string
+                .replace(/\d/g, function (match) {
+                    return symbolMap$7[match];
+                })
+                .replace(/,/g, '،');
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}م/,
+        ordinal: '%dم',
+        week: {
+            dow: 6, // Saturday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var numbersPast =
+            'nolla yksi kaksi kolme neljä viisi kuusi seitsemän kahdeksan yhdeksän'.split(
+                ' '
+            ),
+        numbersFuture = [
+            'nolla',
+            'yhden',
+            'kahden',
+            'kolmen',
+            'neljän',
+            'viiden',
+            'kuuden',
+            numbersPast[7],
+            numbersPast[8],
+            numbersPast[9],
+        ];
+    function translate$2(number, withoutSuffix, key, isFuture) {
+        var result = '';
+        switch (key) {
+            case 's':
+                return isFuture ? 'muutaman sekunnin' : 'muutama sekunti';
+            case 'ss':
+                result = isFuture ? 'sekunnin' : 'sekuntia';
+                break;
+            case 'm':
+                return isFuture ? 'minuutin' : 'minuutti';
+            case 'mm':
+                result = isFuture ? 'minuutin' : 'minuuttia';
+                break;
+            case 'h':
+                return isFuture ? 'tunnin' : 'tunti';
+            case 'hh':
+                result = isFuture ? 'tunnin' : 'tuntia';
+                break;
+            case 'd':
+                return isFuture ? 'päivän' : 'päivä';
+            case 'dd':
+                result = isFuture ? 'päivän' : 'päivää';
+                break;
+            case 'M':
+                return isFuture ? 'kuukauden' : 'kuukausi';
+            case 'MM':
+                result = isFuture ? 'kuukauden' : 'kuukautta';
+                break;
+            case 'y':
+                return isFuture ? 'vuoden' : 'vuosi';
+            case 'yy':
+                result = isFuture ? 'vuoden' : 'vuotta';
+                break;
+        }
+        result = verbalNumber(number, isFuture) + ' ' + result;
+        return result;
+    }
+    function verbalNumber(number, isFuture) {
+        return number < 10
+            ? isFuture
+                ? numbersFuture[number]
+                : numbersPast[number]
+            : number;
+    }
+
+    hooks.defineLocale('fi', {
+        months: 'tammikuu_helmikuu_maaliskuu_huhtikuu_toukokuu_kesäkuu_heinäkuu_elokuu_syyskuu_lokakuu_marraskuu_joulukuu'.split(
+            '_'
+        ),
+        monthsShort:
+            'tammi_helmi_maalis_huhti_touko_kesä_heinä_elo_syys_loka_marras_joulu'.split(
+                '_'
+            ),
+        weekdays:
+            'sunnuntai_maanantai_tiistai_keskiviikko_torstai_perjantai_lauantai'.split(
+                '_'
+            ),
+        weekdaysShort: 'su_ma_ti_ke_to_pe_la'.split('_'),
+        weekdaysMin: 'su_ma_ti_ke_to_pe_la'.split('_'),
+        longDateFormat: {
+            LT: 'HH.mm',
+            LTS: 'HH.mm.ss',
+            L: 'DD.MM.YYYY',
+            LL: 'Do MMMM[ta] YYYY',
+            LLL: 'Do MMMM[ta] YYYY, [klo] HH.mm',
+            LLLL: 'dddd, Do MMMM[ta] YYYY, [klo] HH.mm',
+            l: 'D.M.YYYY',
+            ll: 'Do MMM YYYY',
+            lll: 'Do MMM YYYY, [klo] HH.mm',
+            llll: 'ddd, Do MMM YYYY, [klo] HH.mm',
+        },
+        calendar: {
+            sameDay: '[tänään] [klo] LT',
+            nextDay: '[huomenna] [klo] LT',
+            nextWeek: 'dddd [klo] LT',
+            lastDay: '[eilen] [klo] LT',
+            lastWeek: '[viime] dddd[na] [klo] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s päästä',
+            past: '%s sitten',
+            s: translate$2,
+            ss: translate$2,
+            m: translate$2,
+            mm: translate$2,
+            h: translate$2,
+            hh: translate$2,
+            d: translate$2,
+            dd: translate$2,
+            M: translate$2,
+            MM: translate$2,
+            y: translate$2,
+            yy: translate$2,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('fil', {
+        months: 'Enero_Pebrero_Marso_Abril_Mayo_Hunyo_Hulyo_Agosto_Setyembre_Oktubre_Nobyembre_Disyembre'.split(
+            '_'
+        ),
+        monthsShort: 'Ene_Peb_Mar_Abr_May_Hun_Hul_Ago_Set_Okt_Nob_Dis'.split('_'),
+        weekdays: 'Linggo_Lunes_Martes_Miyerkules_Huwebes_Biyernes_Sabado'.split(
+            '_'
+        ),
+        weekdaysShort: 'Lin_Lun_Mar_Miy_Huw_Biy_Sab'.split('_'),
+        weekdaysMin: 'Li_Lu_Ma_Mi_Hu_Bi_Sab'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'MM/D/YYYY',
+            LL: 'MMMM D, YYYY',
+            LLL: 'MMMM D, YYYY HH:mm',
+            LLLL: 'dddd, MMMM DD, YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: 'LT [ngayong araw]',
+            nextDay: '[Bukas ng] LT',
+            nextWeek: 'LT [sa susunod na] dddd',
+            lastDay: 'LT [kahapon]',
+            lastWeek: 'LT [noong nakaraang] dddd',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'sa loob ng %s',
+            past: '%s ang nakalipas',
+            s: 'ilang segundo',
+            ss: '%d segundo',
+            m: 'isang minuto',
+            mm: '%d minuto',
+            h: 'isang oras',
+            hh: '%d oras',
+            d: 'isang araw',
+            dd: '%d araw',
+            M: 'isang buwan',
+            MM: '%d buwan',
+            y: 'isang taon',
+            yy: '%d taon',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}/,
+        ordinal: function (number) {
+            return number;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('fo', {
+        months: 'januar_februar_mars_apríl_mai_juni_juli_august_september_oktober_november_desember'.split(
+            '_'
+        ),
+        monthsShort: 'jan_feb_mar_apr_mai_jun_jul_aug_sep_okt_nov_des'.split('_'),
+        weekdays:
+            'sunnudagur_mánadagur_týsdagur_mikudagur_hósdagur_fríggjadagur_leygardagur'.split(
+                '_'
+            ),
+        weekdaysShort: 'sun_mán_týs_mik_hós_frí_ley'.split('_'),
+        weekdaysMin: 'su_má_tý_mi_hó_fr_le'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D. MMMM, YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Í dag kl.] LT',
+            nextDay: '[Í morgin kl.] LT',
+            nextWeek: 'dddd [kl.] LT',
+            lastDay: '[Í gjár kl.] LT',
+            lastWeek: '[síðstu] dddd [kl] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'um %s',
+            past: '%s síðani',
+            s: 'fá sekund',
+            ss: '%d sekundir',
+            m: 'ein minuttur',
+            mm: '%d minuttir',
+            h: 'ein tími',
+            hh: '%d tímar',
+            d: 'ein dagur',
+            dd: '%d dagar',
+            M: 'ein mánaður',
+            MM: '%d mánaðir',
+            y: 'eitt ár',
+            yy: '%d ár',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('fr-ca', {
+        months: 'janvier_février_mars_avril_mai_juin_juillet_août_septembre_octobre_novembre_décembre'.split(
+            '_'
+        ),
+        monthsShort:
+            'janv._févr._mars_avr._mai_juin_juil._août_sept._oct._nov._déc.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'dimanche_lundi_mardi_mercredi_jeudi_vendredi_samedi'.split('_'),
+        weekdaysShort: 'dim._lun._mar._mer._jeu._ven._sam.'.split('_'),
+        weekdaysMin: 'di_lu_ma_me_je_ve_sa'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY-MM-DD',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Aujourd’hui à] LT',
+            nextDay: '[Demain à] LT',
+            nextWeek: 'dddd [à] LT',
+            lastDay: '[Hier à] LT',
+            lastWeek: 'dddd [dernier à] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'dans %s',
+            past: 'il y a %s',
+            s: 'quelques secondes',
+            ss: '%d secondes',
+            m: 'une minute',
+            mm: '%d minutes',
+            h: 'une heure',
+            hh: '%d heures',
+            d: 'un jour',
+            dd: '%d jours',
+            M: 'un mois',
+            MM: '%d mois',
+            y: 'un an',
+            yy: '%d ans',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(er|e)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                // Words with masculine grammatical gender: mois, trimestre, jour
+                default:
+                case 'M':
+                case 'Q':
+                case 'D':
+                case 'DDD':
+                case 'd':
+                    return number + (number === 1 ? 'er' : 'e');
+
+                // Words with feminine grammatical gender: semaine
+                case 'w':
+                case 'W':
+                    return number + (number === 1 ? 're' : 'e');
+            }
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('fr-ch', {
+        months: 'janvier_février_mars_avril_mai_juin_juillet_août_septembre_octobre_novembre_décembre'.split(
+            '_'
+        ),
+        monthsShort:
+            'janv._févr._mars_avr._mai_juin_juil._août_sept._oct._nov._déc.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'dimanche_lundi_mardi_mercredi_jeudi_vendredi_samedi'.split('_'),
+        weekdaysShort: 'dim._lun._mar._mer._jeu._ven._sam.'.split('_'),
+        weekdaysMin: 'di_lu_ma_me_je_ve_sa'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Aujourd’hui à] LT',
+            nextDay: '[Demain à] LT',
+            nextWeek: 'dddd [à] LT',
+            lastDay: '[Hier à] LT',
+            lastWeek: 'dddd [dernier à] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'dans %s',
+            past: 'il y a %s',
+            s: 'quelques secondes',
+            ss: '%d secondes',
+            m: 'une minute',
+            mm: '%d minutes',
+            h: 'une heure',
+            hh: '%d heures',
+            d: 'un jour',
+            dd: '%d jours',
+            M: 'un mois',
+            MM: '%d mois',
+            y: 'un an',
+            yy: '%d ans',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(er|e)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                // Words with masculine grammatical gender: mois, trimestre, jour
+                default:
+                case 'M':
+                case 'Q':
+                case 'D':
+                case 'DDD':
+                case 'd':
+                    return number + (number === 1 ? 'er' : 'e');
+
+                // Words with feminine grammatical gender: semaine
+                case 'w':
+                case 'W':
+                    return number + (number === 1 ? 're' : 'e');
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var monthsStrictRegex$1 =
+            /^(janvier|février|mars|avril|mai|juin|juillet|août|septembre|octobre|novembre|décembre)/i,
+        monthsShortStrictRegex$1 =
+            /(janv\.?|févr\.?|mars|avr\.?|mai|juin|juil\.?|août|sept\.?|oct\.?|nov\.?|déc\.?)/i,
+        monthsRegex$7 =
+            /(janv\.?|févr\.?|mars|avr\.?|mai|juin|juil\.?|août|sept\.?|oct\.?|nov\.?|déc\.?|janvier|février|mars|avril|mai|juin|juillet|août|septembre|octobre|novembre|décembre)/i,
+        monthsParse$6 = [
+            /^janv/i,
+            /^févr/i,
+            /^mars/i,
+            /^avr/i,
+            /^mai/i,
+            /^juin/i,
+            /^juil/i,
+            /^août/i,
+            /^sept/i,
+            /^oct/i,
+            /^nov/i,
+            /^déc/i,
+        ];
+
+    hooks.defineLocale('fr', {
+        months: 'janvier_février_mars_avril_mai_juin_juillet_août_septembre_octobre_novembre_décembre'.split(
+            '_'
+        ),
+        monthsShort:
+            'janv._févr._mars_avr._mai_juin_juil._août_sept._oct._nov._déc.'.split(
+                '_'
+            ),
+        monthsRegex: monthsRegex$7,
+        monthsShortRegex: monthsRegex$7,
+        monthsStrictRegex: monthsStrictRegex$1,
+        monthsShortStrictRegex: monthsShortStrictRegex$1,
+        monthsParse: monthsParse$6,
+        longMonthsParse: monthsParse$6,
+        shortMonthsParse: monthsParse$6,
+        weekdays: 'dimanche_lundi_mardi_mercredi_jeudi_vendredi_samedi'.split('_'),
+        weekdaysShort: 'dim._lun._mar._mer._jeu._ven._sam.'.split('_'),
+        weekdaysMin: 'di_lu_ma_me_je_ve_sa'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Aujourd’hui à] LT',
+            nextDay: '[Demain à] LT',
+            nextWeek: 'dddd [à] LT',
+            lastDay: '[Hier à] LT',
+            lastWeek: 'dddd [dernier à] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'dans %s',
+            past: 'il y a %s',
+            s: 'quelques secondes',
+            ss: '%d secondes',
+            m: 'une minute',
+            mm: '%d minutes',
+            h: 'une heure',
+            hh: '%d heures',
+            d: 'un jour',
+            dd: '%d jours',
+            w: 'une semaine',
+            ww: '%d semaines',
+            M: 'un mois',
+            MM: '%d mois',
+            y: 'un an',
+            yy: '%d ans',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(er|)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                // TODO: Return 'e' when day of month > 1. Move this case inside
+                // block for masculine words below.
+                // See https://github.com/moment/moment/issues/3375
+                case 'D':
+                    return number + (number === 1 ? 'er' : '');
+
+                // Words with masculine grammatical gender: mois, trimestre, jour
+                default:
+                case 'M':
+                case 'Q':
+                case 'DDD':
+                case 'd':
+                    return number + (number === 1 ? 'er' : 'e');
+
+                // Words with feminine grammatical gender: semaine
+                case 'w':
+                case 'W':
+                    return number + (number === 1 ? 're' : 'e');
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var monthsShortWithDots =
+            'jan._feb._mrt._apr._mai_jun._jul._aug._sep._okt._nov._des.'.split('_'),
+        monthsShortWithoutDots =
+            'jan_feb_mrt_apr_mai_jun_jul_aug_sep_okt_nov_des'.split('_');
+
+    hooks.defineLocale('fy', {
+        months: 'jannewaris_febrewaris_maart_april_maaie_juny_july_augustus_septimber_oktober_novimber_desimber'.split(
+            '_'
+        ),
+        monthsShort: function (m, format) {
+            if (!m) {
+                return monthsShortWithDots;
+            } else if (/-MMM-/.test(format)) {
+                return monthsShortWithoutDots[m.month()];
+            } else {
+                return monthsShortWithDots[m.month()];
+            }
+        },
+        monthsParseExact: true,
+        weekdays: 'snein_moandei_tiisdei_woansdei_tongersdei_freed_sneon'.split(
+            '_'
+        ),
+        weekdaysShort: 'si._mo._ti._wo._to._fr._so.'.split('_'),
+        weekdaysMin: 'Si_Mo_Ti_Wo_To_Fr_So'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD-MM-YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[hjoed om] LT',
+            nextDay: '[moarn om] LT',
+            nextWeek: 'dddd [om] LT',
+            lastDay: '[juster om] LT',
+            lastWeek: '[ôfrûne] dddd [om] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'oer %s',
+            past: '%s lyn',
+            s: 'in pear sekonden',
+            ss: '%d sekonden',
+            m: 'ien minút',
+            mm: '%d minuten',
+            h: 'ien oere',
+            hh: '%d oeren',
+            d: 'ien dei',
+            dd: '%d dagen',
+            M: 'ien moanne',
+            MM: '%d moannen',
+            y: 'ien jier',
+            yy: '%d jierren',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
+        ordinal: function (number) {
+            return (
+                number +
+                (number === 1 || number === 8 || number >= 20 ? 'ste' : 'de')
+            );
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var months$6 = [
+            'Eanáir',
+            'Feabhra',
+            'Márta',
+            'Aibreán',
+            'Bealtaine',
+            'Meitheamh',
+            'Iúil',
+            'Lúnasa',
+            'Meán Fómhair',
+            'Deireadh Fómhair',
+            'Samhain',
+            'Nollaig',
+        ],
+        monthsShort$5 = [
+            'Ean',
+            'Feabh',
+            'Márt',
+            'Aib',
+            'Beal',
+            'Meith',
+            'Iúil',
+            'Lún',
+            'M.F.',
+            'D.F.',
+            'Samh',
+            'Noll',
+        ],
+        weekdays$1 = [
+            'Dé Domhnaigh',
+            'Dé Luain',
+            'Dé Máirt',
+            'Dé Céadaoin',
+            'Déardaoin',
+            'Dé hAoine',
+            'Dé Sathairn',
+        ],
+        weekdaysShort = ['Domh', 'Luan', 'Máirt', 'Céad', 'Déar', 'Aoine', 'Sath'],
+        weekdaysMin = ['Do', 'Lu', 'Má', 'Cé', 'Dé', 'A', 'Sa'];
+
+    hooks.defineLocale('ga', {
+        months: months$6,
+        monthsShort: monthsShort$5,
+        monthsParseExact: true,
+        weekdays: weekdays$1,
+        weekdaysShort: weekdaysShort,
+        weekdaysMin: weekdaysMin,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Inniu ag] LT',
+            nextDay: '[Amárach ag] LT',
+            nextWeek: 'dddd [ag] LT',
+            lastDay: '[Inné ag] LT',
+            lastWeek: 'dddd [seo caite] [ag] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'i %s',
+            past: '%s ó shin',
+            s: 'cúpla soicind',
+            ss: '%d soicind',
+            m: 'nóiméad',
+            mm: '%d nóiméad',
+            h: 'uair an chloig',
+            hh: '%d uair an chloig',
+            d: 'lá',
+            dd: '%d lá',
+            M: 'mí',
+            MM: '%d míonna',
+            y: 'bliain',
+            yy: '%d bliain',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(d|na|mh)/,
+        ordinal: function (number) {
+            var output = number === 1 ? 'd' : number % 10 === 2 ? 'na' : 'mh';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var months$7 = [
+            'Am Faoilleach',
+            'An Gearran',
+            'Am Màrt',
+            'An Giblean',
+            'An Cèitean',
+            'An t-Ògmhios',
+            'An t-Iuchar',
+            'An Lùnastal',
+            'An t-Sultain',
+            'An Dàmhair',
+            'An t-Samhain',
+            'An Dùbhlachd',
+        ],
+        monthsShort$6 = [
+            'Faoi',
+            'Gear',
+            'Màrt',
+            'Gibl',
+            'Cèit',
+            'Ògmh',
+            'Iuch',
+            'Lùn',
+            'Sult',
+            'Dàmh',
+            'Samh',
+            'Dùbh',
+        ],
+        weekdays$2 = [
+            'Didòmhnaich',
+            'Diluain',
+            'Dimàirt',
+            'Diciadain',
+            'Diardaoin',
+            'Dihaoine',
+            'Disathairne',
+        ],
+        weekdaysShort$1 = ['Did', 'Dil', 'Dim', 'Dic', 'Dia', 'Dih', 'Dis'],
+        weekdaysMin$1 = ['Dò', 'Lu', 'Mà', 'Ci', 'Ar', 'Ha', 'Sa'];
+
+    hooks.defineLocale('gd', {
+        months: months$7,
+        monthsShort: monthsShort$6,
+        monthsParseExact: true,
+        weekdays: weekdays$2,
+        weekdaysShort: weekdaysShort$1,
+        weekdaysMin: weekdaysMin$1,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[An-diugh aig] LT',
+            nextDay: '[A-màireach aig] LT',
+            nextWeek: 'dddd [aig] LT',
+            lastDay: '[An-dè aig] LT',
+            lastWeek: 'dddd [seo chaidh] [aig] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'ann an %s',
+            past: 'bho chionn %s',
+            s: 'beagan diogan',
+            ss: '%d diogan',
+            m: 'mionaid',
+            mm: '%d mionaidean',
+            h: 'uair',
+            hh: '%d uairean',
+            d: 'latha',
+            dd: '%d latha',
+            M: 'mìos',
+            MM: '%d mìosan',
+            y: 'bliadhna',
+            yy: '%d bliadhna',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(d|na|mh)/,
+        ordinal: function (number) {
+            var output = number === 1 ? 'd' : number % 10 === 2 ? 'na' : 'mh';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('gl', {
+        months: 'xaneiro_febreiro_marzo_abril_maio_xuño_xullo_agosto_setembro_outubro_novembro_decembro'.split(
+            '_'
+        ),
+        monthsShort:
+            'xan._feb._mar._abr._mai._xuñ._xul._ago._set._out._nov._dec.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'domingo_luns_martes_mércores_xoves_venres_sábado'.split('_'),
+        weekdaysShort: 'dom._lun._mar._mér._xov._ven._sáb.'.split('_'),
+        weekdaysMin: 'do_lu_ma_mé_xo_ve_sá'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D [de] MMMM [de] YYYY',
+            LLL: 'D [de] MMMM [de] YYYY H:mm',
+            LLLL: 'dddd, D [de] MMMM [de] YYYY H:mm',
+        },
+        calendar: {
+            sameDay: function () {
+                return '[hoxe ' + (this.hours() !== 1 ? 'ás' : 'á') + '] LT';
+            },
+            nextDay: function () {
+                return '[mañá ' + (this.hours() !== 1 ? 'ás' : 'á') + '] LT';
+            },
+            nextWeek: function () {
+                return 'dddd [' + (this.hours() !== 1 ? 'ás' : 'a') + '] LT';
+            },
+            lastDay: function () {
+                return '[onte ' + (this.hours() !== 1 ? 'á' : 'a') + '] LT';
+            },
+            lastWeek: function () {
+                return (
+                    '[o] dddd [pasado ' + (this.hours() !== 1 ? 'ás' : 'a') + '] LT'
+                );
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: function (str) {
+                if (str.indexOf('un') === 0) {
+                    return 'n' + str;
+                }
+                return 'en ' + str;
+            },
+            past: 'hai %s',
+            s: 'uns segundos',
+            ss: '%d segundos',
+            m: 'un minuto',
+            mm: '%d minutos',
+            h: 'unha hora',
+            hh: '%d horas',
+            d: 'un día',
+            dd: '%d días',
+            M: 'un mes',
+            MM: '%d meses',
+            y: 'un ano',
+            yy: '%d anos',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function processRelativeTime$5(number, withoutSuffix, key, isFuture) {
+        var format = {
+            s: ['थोडया सॅकंडांनी', 'थोडे सॅकंड'],
+            ss: [number + ' सॅकंडांनी', number + ' सॅकंड'],
+            m: ['एका मिणटान', 'एक मिनूट'],
+            mm: [number + ' मिणटांनी', number + ' मिणटां'],
+            h: ['एका वरान', 'एक वर'],
+            hh: [number + ' वरांनी', number + ' वरां'],
+            d: ['एका दिसान', 'एक दीस'],
+            dd: [number + ' दिसांनी', number + ' दीस'],
+            M: ['एका म्हयन्यान', 'एक म्हयनो'],
+            MM: [number + ' म्हयन्यानी', number + ' म्हयने'],
+            y: ['एका वर्सान', 'एक वर्स'],
+            yy: [number + ' वर्सांनी', number + ' वर्सां'],
+        };
+        return isFuture ? format[key][0] : format[key][1];
+    }
+
+    hooks.defineLocale('gom-deva', {
+        months: {
+            standalone:
+                'जानेवारी_फेब्रुवारी_मार्च_एप्रील_मे_जून_जुलय_ऑगस्ट_सप्टेंबर_ऑक्टोबर_नोव्हेंबर_डिसेंबर'.split(
+                    '_'
+                ),
+            format: 'जानेवारीच्या_फेब्रुवारीच्या_मार्चाच्या_एप्रीलाच्या_मेयाच्या_जूनाच्या_जुलयाच्या_ऑगस्टाच्या_सप्टेंबराच्या_ऑक्टोबराच्या_नोव्हेंबराच्या_डिसेंबराच्या'.split(
+                '_'
+            ),
+            isFormat: /MMMM(\s)+D[oD]?/,
+        },
+        monthsShort:
+            'जाने._फेब्रु._मार्च_एप्री._मे_जून_जुल._ऑग._सप्टें._ऑक्टो._नोव्हें._डिसें.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'आयतार_सोमार_मंगळार_बुधवार_बिरेस्तार_सुक्रार_शेनवार'.split('_'),
+        weekdaysShort: 'आयत._सोम._मंगळ._बुध._ब्रेस्त._सुक्र._शेन.'.split('_'),
+        weekdaysMin: 'आ_सो_मं_बु_ब्रे_सु_शे'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'A h:mm [वाजतां]',
+            LTS: 'A h:mm:ss [वाजतां]',
+            L: 'DD-MM-YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY A h:mm [वाजतां]',
+            LLLL: 'dddd, MMMM Do, YYYY, A h:mm [वाजतां]',
+            llll: 'ddd, D MMM YYYY, A h:mm [वाजतां]',
+        },
+        calendar: {
+            sameDay: '[आयज] LT',
+            nextDay: '[फाल्यां] LT',
+            nextWeek: '[फुडलो] dddd[,] LT',
+            lastDay: '[काल] LT',
+            lastWeek: '[फाटलो] dddd[,] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s',
+            past: '%s आदीं',
+            s: processRelativeTime$5,
+            ss: processRelativeTime$5,
+            m: processRelativeTime$5,
+            mm: processRelativeTime$5,
+            h: processRelativeTime$5,
+            hh: processRelativeTime$5,
+            d: processRelativeTime$5,
+            dd: processRelativeTime$5,
+            M: processRelativeTime$5,
+            MM: processRelativeTime$5,
+            y: processRelativeTime$5,
+            yy: processRelativeTime$5,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(वेर)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                // the ordinal 'वेर' only applies to day of the month
+                case 'D':
+                    return number + 'वेर';
+                default:
+                case 'M':
+                case 'Q':
+                case 'DDD':
+                case 'd':
+                case 'w':
+                case 'W':
+                    return number;
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week
+            doy: 3, // The week that contains Jan 4th is the first week of the year (7 + 0 - 4)
+        },
+        meridiemParse: /राती|सकाळीं|दनपारां|सांजे/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'राती') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'सकाळीं') {
+                return hour;
+            } else if (meridiem === 'दनपारां') {
+                return hour > 12 ? hour : hour + 12;
+            } else if (meridiem === 'सांजे') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'राती';
+            } else if (hour < 12) {
+                return 'सकाळीं';
+            } else if (hour < 16) {
+                return 'दनपारां';
+            } else if (hour < 20) {
+                return 'सांजे';
+            } else {
+                return 'राती';
+            }
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function processRelativeTime$6(number, withoutSuffix, key, isFuture) {
+        var format = {
+            s: ['thoddea sekondamni', 'thodde sekond'],
+            ss: [number + ' sekondamni', number + ' sekond'],
+            m: ['eka mintan', 'ek minut'],
+            mm: [number + ' mintamni', number + ' mintam'],
+            h: ['eka voran', 'ek vor'],
+            hh: [number + ' voramni', number + ' voram'],
+            d: ['eka disan', 'ek dis'],
+            dd: [number + ' disamni', number + ' dis'],
+            M: ['eka mhoinean', 'ek mhoino'],
+            MM: [number + ' mhoineamni', number + ' mhoine'],
+            y: ['eka vorsan', 'ek voros'],
+            yy: [number + ' vorsamni', number + ' vorsam'],
+        };
+        return isFuture ? format[key][0] : format[key][1];
+    }
+
+    hooks.defineLocale('gom-latn', {
+        months: {
+            standalone:
+                'Janer_Febrer_Mars_Abril_Mai_Jun_Julai_Agost_Setembr_Otubr_Novembr_Dezembr'.split(
+                    '_'
+                ),
+            format: 'Janerachea_Febrerachea_Marsachea_Abrilachea_Maiachea_Junachea_Julaiachea_Agostachea_Setembrachea_Otubrachea_Novembrachea_Dezembrachea'.split(
+                '_'
+            ),
+            isFormat: /MMMM(\s)+D[oD]?/,
+        },
+        monthsShort:
+            'Jan._Feb._Mars_Abr._Mai_Jun_Jul._Ago._Set._Otu._Nov._Dez.'.split('_'),
+        monthsParseExact: true,
+        weekdays: "Aitar_Somar_Mongllar_Budhvar_Birestar_Sukrar_Son'var".split('_'),
+        weekdaysShort: 'Ait._Som._Mon._Bud._Bre._Suk._Son.'.split('_'),
+        weekdaysMin: 'Ai_Sm_Mo_Bu_Br_Su_Sn'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'A h:mm [vazta]',
+            LTS: 'A h:mm:ss [vazta]',
+            L: 'DD-MM-YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY A h:mm [vazta]',
+            LLLL: 'dddd, MMMM Do, YYYY, A h:mm [vazta]',
+            llll: 'ddd, D MMM YYYY, A h:mm [vazta]',
+        },
+        calendar: {
+            sameDay: '[Aiz] LT',
+            nextDay: '[Faleam] LT',
+            nextWeek: '[Fuddlo] dddd[,] LT',
+            lastDay: '[Kal] LT',
+            lastWeek: '[Fattlo] dddd[,] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s',
+            past: '%s adim',
+            s: processRelativeTime$6,
+            ss: processRelativeTime$6,
+            m: processRelativeTime$6,
+            mm: processRelativeTime$6,
+            h: processRelativeTime$6,
+            hh: processRelativeTime$6,
+            d: processRelativeTime$6,
+            dd: processRelativeTime$6,
+            M: processRelativeTime$6,
+            MM: processRelativeTime$6,
+            y: processRelativeTime$6,
+            yy: processRelativeTime$6,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(er)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                // the ordinal 'er' only applies to day of the month
+                case 'D':
+                    return number + 'er';
+                default:
+                case 'M':
+                case 'Q':
+                case 'DDD':
+                case 'd':
+                case 'w':
+                case 'W':
+                    return number;
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week
+            doy: 3, // The week that contains Jan 4th is the first week of the year (7 + 0 - 4)
+        },
+        meridiemParse: /rati|sokallim|donparam|sanje/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'rati') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'sokallim') {
+                return hour;
+            } else if (meridiem === 'donparam') {
+                return hour > 12 ? hour : hour + 12;
+            } else if (meridiem === 'sanje') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'rati';
+            } else if (hour < 12) {
+                return 'sokallim';
+            } else if (hour < 16) {
+                return 'donparam';
+            } else if (hour < 20) {
+                return 'sanje';
+            } else {
+                return 'rati';
+            }
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$8 = {
+            1: '૧',
+            2: '૨',
+            3: '૩',
+            4: '૪',
+            5: '૫',
+            6: '૬',
+            7: '૭',
+            8: '૮',
+            9: '૯',
+            0: '૦',
+        },
+        numberMap$7 = {
+            '૧': '1',
+            '૨': '2',
+            '૩': '3',
+            '૪': '4',
+            '૫': '5',
+            '૬': '6',
+            '૭': '7',
+            '૮': '8',
+            '૯': '9',
+            '૦': '0',
+        };
+
+    hooks.defineLocale('gu', {
+        months: 'જાન્યુઆરી_ફેબ્રુઆરી_માર્ચ_એપ્રિલ_મે_જૂન_જુલાઈ_ઑગસ્ટ_સપ્ટેમ્બર_ઑક્ટ્બર_નવેમ્બર_ડિસેમ્બર'.split(
+            '_'
+        ),
+        monthsShort:
+            'જાન્યુ._ફેબ્રુ._માર્ચ_એપ્રિ._મે_જૂન_જુલા._ઑગ._સપ્ટે._ઑક્ટ્._નવે._ડિસે.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'રવિવાર_સોમવાર_મંગળવાર_બુધ્વાર_ગુરુવાર_શુક્રવાર_શનિવાર'.split(
+            '_'
+        ),
+        weekdaysShort: 'રવિ_સોમ_મંગળ_બુધ્_ગુરુ_શુક્ર_શનિ'.split('_'),
+        weekdaysMin: 'ર_સો_મં_બુ_ગુ_શુ_શ'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm વાગ્યે',
+            LTS: 'A h:mm:ss વાગ્યે',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm વાગ્યે',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm વાગ્યે',
+        },
+        calendar: {
+            sameDay: '[આજ] LT',
+            nextDay: '[કાલે] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[ગઇકાલે] LT',
+            lastWeek: '[પાછલા] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s મા',
+            past: '%s પહેલા',
+            s: 'અમુક પળો',
+            ss: '%d સેકંડ',
+            m: 'એક મિનિટ',
+            mm: '%d મિનિટ',
+            h: 'એક કલાક',
+            hh: '%d કલાક',
+            d: 'એક દિવસ',
+            dd: '%d દિવસ',
+            M: 'એક મહિનો',
+            MM: '%d મહિનો',
+            y: 'એક વર્ષ',
+            yy: '%d વર્ષ',
+        },
+        preparse: function (string) {
+            return string.replace(/[૧૨૩૪૫૬૭૮૯૦]/g, function (match) {
+                return numberMap$7[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap$8[match];
+            });
+        },
+        // Gujarati notation for meridiems are quite fuzzy in practice. While there exists
+        // a rigid notion of a 'Pahar' it is not used as rigidly in modern Gujarati.
+        meridiemParse: /રાત|બપોર|સવાર|સાંજ/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'રાત') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'સવાર') {
+                return hour;
+            } else if (meridiem === 'બપોર') {
+                return hour >= 10 ? hour : hour + 12;
+            } else if (meridiem === 'સાંજ') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'રાત';
+            } else if (hour < 10) {
+                return 'સવાર';
+            } else if (hour < 17) {
+                return 'બપોર';
+            } else if (hour < 20) {
+                return 'સાંજ';
+            } else {
+                return 'રાત';
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('he', {
+        months: 'ינואר_פברואר_מרץ_אפריל_מאי_יוני_יולי_אוגוסט_ספטמבר_אוקטובר_נובמבר_דצמבר'.split(
+            '_'
+        ),
+        monthsShort:
+            'ינו׳_פבר׳_מרץ_אפר׳_מאי_יוני_יולי_אוג׳_ספט׳_אוק׳_נוב׳_דצמ׳'.split('_'),
+        weekdays: 'ראשון_שני_שלישי_רביעי_חמישי_שישי_שבת'.split('_'),
+        weekdaysShort: 'א׳_ב׳_ג׳_ד׳_ה׳_ו׳_ש׳'.split('_'),
+        weekdaysMin: 'א_ב_ג_ד_ה_ו_ש'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D [ב]MMMM YYYY',
+            LLL: 'D [ב]MMMM YYYY HH:mm',
+            LLLL: 'dddd, D [ב]MMMM YYYY HH:mm',
+            l: 'D/M/YYYY',
+            ll: 'D MMM YYYY',
+            lll: 'D MMM YYYY HH:mm',
+            llll: 'ddd, D MMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[היום ב־]LT',
+            nextDay: '[מחר ב־]LT',
+            nextWeek: 'dddd [בשעה] LT',
+            lastDay: '[אתמול ב־]LT',
+            lastWeek: '[ביום] dddd [האחרון בשעה] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'בעוד %s',
+            past: 'לפני %s',
+            s: 'מספר שניות',
+            ss: '%d שניות',
+            m: 'דקה',
+            mm: '%d דקות',
+            h: 'שעה',
+            hh: function (number) {
+                if (number === 2) {
+                    return 'שעתיים';
+                }
+                return number + ' שעות';
+            },
+            d: 'יום',
+            dd: function (number) {
+                if (number === 2) {
+                    return 'יומיים';
+                }
+                return number + ' ימים';
+            },
+            M: 'חודש',
+            MM: function (number) {
+                if (number === 2) {
+                    return 'חודשיים';
+                }
+                return number + ' חודשים';
+            },
+            y: 'שנה',
+            yy: function (number) {
+                if (number === 2) {
+                    return 'שנתיים';
+                } else if (number % 10 === 0 && number !== 10) {
+                    return number + ' שנה';
+                }
+                return number + ' שנים';
+            },
+        },
+        meridiemParse:
+            /אחה"צ|לפנה"צ|אחרי הצהריים|לפני הצהריים|לפנות בוקר|בבוקר|בערב/i,
+        isPM: function (input) {
+            return /^(אחה"צ|אחרי הצהריים|בערב)$/.test(input);
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 5) {
+                return 'לפנות בוקר';
+            } else if (hour < 10) {
+                return 'בבוקר';
+            } else if (hour < 12) {
+                return isLower ? 'לפנה"צ' : 'לפני הצהריים';
+            } else if (hour < 18) {
+                return isLower ? 'אחה"צ' : 'אחרי הצהריים';
+            } else {
+                return 'בערב';
+            }
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$9 = {
+            1: '१',
+            2: '२',
+            3: '३',
+            4: '४',
+            5: '५',
+            6: '६',
+            7: '७',
+            8: '८',
+            9: '९',
+            0: '०',
+        },
+        numberMap$8 = {
+            '१': '1',
+            '२': '2',
+            '३': '3',
+            '४': '4',
+            '५': '5',
+            '६': '6',
+            '७': '7',
+            '८': '8',
+            '९': '9',
+            '०': '0',
+        },
+        monthsParse$7 = [
+            /^जन/i,
+            /^फ़र|फर/i,
+            /^मार्च/i,
+            /^अप्रै/i,
+            /^मई/i,
+            /^जून/i,
+            /^जुल/i,
+            /^अग/i,
+            /^सितं|सित/i,
+            /^अक्टू/i,
+            /^नव|नवं/i,
+            /^दिसं|दिस/i,
+        ],
+        shortMonthsParse = [
+            /^जन/i,
+            /^फ़र/i,
+            /^मार्च/i,
+            /^अप्रै/i,
+            /^मई/i,
+            /^जून/i,
+            /^जुल/i,
+            /^अग/i,
+            /^सित/i,
+            /^अक्टू/i,
+            /^नव/i,
+            /^दिस/i,
+        ];
+
+    hooks.defineLocale('hi', {
+        months: {
+            format: 'जनवरी_फ़रवरी_मार्च_अप्रैल_मई_जून_जुलाई_अगस्त_सितम्बर_अक्टूबर_नवम्बर_दिसम्बर'.split(
+                '_'
+            ),
+            standalone:
+                'जनवरी_फरवरी_मार्च_अप्रैल_मई_जून_जुलाई_अगस्त_सितंबर_अक्टूबर_नवंबर_दिसंबर'.split(
+                    '_'
+                ),
+        },
+        monthsShort:
+            'जन._फ़र._मार्च_अप्रै._मई_जून_जुल._अग._सित._अक्टू._नव._दिस.'.split('_'),
+        weekdays: 'रविवार_सोमवार_मंगलवार_बुधवार_गुरूवार_शुक्रवार_शनिवार'.split('_'),
+        weekdaysShort: 'रवि_सोम_मंगल_बुध_गुरू_शुक्र_शनि'.split('_'),
+        weekdaysMin: 'र_सो_मं_बु_गु_शु_श'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm बजे',
+            LTS: 'A h:mm:ss बजे',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm बजे',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm बजे',
+        },
+
+        monthsParse: monthsParse$7,
+        longMonthsParse: monthsParse$7,
+        shortMonthsParse: shortMonthsParse,
+
+        monthsRegex:
+            /^(जनवरी|जन\.?|फ़रवरी|फरवरी|फ़र\.?|मार्च?|अप्रैल|अप्रै\.?|मई?|जून?|जुलाई|जुल\.?|अगस्त|अग\.?|सितम्बर|सितंबर|सित\.?|अक्टूबर|अक्टू\.?|नवम्बर|नवंबर|नव\.?|दिसम्बर|दिसंबर|दिस\.?)/i,
+
+        monthsShortRegex:
+            /^(जनवरी|जन\.?|फ़रवरी|फरवरी|फ़र\.?|मार्च?|अप्रैल|अप्रै\.?|मई?|जून?|जुलाई|जुल\.?|अगस्त|अग\.?|सितम्बर|सितंबर|सित\.?|अक्टूबर|अक्टू\.?|नवम्बर|नवंबर|नव\.?|दिसम्बर|दिसंबर|दिस\.?)/i,
+
+        monthsStrictRegex:
+            /^(जनवरी?|फ़रवरी|फरवरी?|मार्च?|अप्रैल?|मई?|जून?|जुलाई?|अगस्त?|सितम्बर|सितंबर|सित?\.?|अक्टूबर|अक्टू\.?|नवम्बर|नवंबर?|दिसम्बर|दिसंबर?)/i,
+
+        monthsShortStrictRegex:
+            /^(जन\.?|फ़र\.?|मार्च?|अप्रै\.?|मई?|जून?|जुल\.?|अग\.?|सित\.?|अक्टू\.?|नव\.?|दिस\.?)/i,
+
+        calendar: {
+            sameDay: '[आज] LT',
+            nextDay: '[कल] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[कल] LT',
+            lastWeek: '[पिछले] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s में',
+            past: '%s पहले',
+            s: 'कुछ ही क्षण',
+            ss: '%d सेकंड',
+            m: 'एक मिनट',
+            mm: '%d मिनट',
+            h: 'एक घंटा',
+            hh: '%d घंटे',
+            d: 'एक दिन',
+            dd: '%d दिन',
+            M: 'एक महीने',
+            MM: '%d महीने',
+            y: 'एक वर्ष',
+            yy: '%d वर्ष',
+        },
+        preparse: function (string) {
+            return string.replace(/[१२३४५६७८९०]/g, function (match) {
+                return numberMap$8[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap$9[match];
+            });
+        },
+        // Hindi notation for meridiems are quite fuzzy in practice. While there exists
+        // a rigid notion of a 'Pahar' it is not used as rigidly in modern Hindi.
+        meridiemParse: /रात|सुबह|दोपहर|शाम/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'रात') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'सुबह') {
+                return hour;
+            } else if (meridiem === 'दोपहर') {
+                return hour >= 10 ? hour : hour + 12;
+            } else if (meridiem === 'शाम') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'रात';
+            } else if (hour < 10) {
+                return 'सुबह';
+            } else if (hour < 17) {
+                return 'दोपहर';
+            } else if (hour < 20) {
+                return 'शाम';
+            } else {
+                return 'रात';
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function translate$3(number, withoutSuffix, key) {
+        var result = number + ' ';
+        switch (key) {
+            case 'ss':
+                if (number === 1) {
+                    result += 'sekunda';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'sekunde';
+                } else {
+                    result += 'sekundi';
+                }
+                return result;
+            case 'm':
+                return withoutSuffix ? 'jedna minuta' : 'jedne minute';
+            case 'mm':
+                if (number === 1) {
+                    result += 'minuta';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'minute';
+                } else {
+                    result += 'minuta';
+                }
+                return result;
+            case 'h':
+                return withoutSuffix ? 'jedan sat' : 'jednog sata';
+            case 'hh':
+                if (number === 1) {
+                    result += 'sat';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'sata';
+                } else {
+                    result += 'sati';
+                }
+                return result;
+            case 'dd':
+                if (number === 1) {
+                    result += 'dan';
+                } else {
+                    result += 'dana';
+                }
+                return result;
+            case 'MM':
+                if (number === 1) {
+                    result += 'mjesec';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'mjeseca';
+                } else {
+                    result += 'mjeseci';
+                }
+                return result;
+            case 'yy':
+                if (number === 1) {
+                    result += 'godina';
+                } else if (number === 2 || number === 3 || number === 4) {
+                    result += 'godine';
+                } else {
+                    result += 'godina';
+                }
+                return result;
+        }
+    }
+
+    hooks.defineLocale('hr', {
+        months: {
+            format: 'siječnja_veljače_ožujka_travnja_svibnja_lipnja_srpnja_kolovoza_rujna_listopada_studenoga_prosinca'.split(
+                '_'
+            ),
+            standalone:
+                'siječanj_veljača_ožujak_travanj_svibanj_lipanj_srpanj_kolovoz_rujan_listopad_studeni_prosinac'.split(
+                    '_'
+                ),
+        },
+        monthsShort:
+            'sij._velj._ožu._tra._svi._lip._srp._kol._ruj._lis._stu._pro.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'nedjelja_ponedjeljak_utorak_srijeda_četvrtak_petak_subota'.split(
+            '_'
+        ),
+        weekdaysShort: 'ned._pon._uto._sri._čet._pet._sub.'.split('_'),
+        weekdaysMin: 'ne_po_ut_sr_če_pe_su'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'Do MMMM YYYY',
+            LLL: 'Do MMMM YYYY H:mm',
+            LLLL: 'dddd, Do MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[danas u] LT',
+            nextDay: '[sutra u] LT',
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[u] [nedjelju] [u] LT';
+                    case 3:
+                        return '[u] [srijedu] [u] LT';
+                    case 6:
+                        return '[u] [subotu] [u] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[u] dddd [u] LT';
+                }
+            },
+            lastDay: '[jučer u] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[prošlu] [nedjelju] [u] LT';
+                    case 3:
+                        return '[prošlu] [srijedu] [u] LT';
+                    case 6:
+                        return '[prošle] [subote] [u] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[prošli] dddd [u] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'za %s',
+            past: 'prije %s',
+            s: 'par sekundi',
+            ss: translate$3,
+            m: translate$3,
+            mm: translate$3,
+            h: translate$3,
+            hh: translate$3,
+            d: 'dan',
+            dd: translate$3,
+            M: 'mjesec',
+            MM: translate$3,
+            y: 'godinu',
+            yy: translate$3,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var weekEndings =
+        'vasárnap hétfőn kedden szerdán csütörtökön pénteken szombaton'.split(' ');
+    function translate$4(number, withoutSuffix, key, isFuture) {
+        var num = number;
+        switch (key) {
+            case 's':
+                return isFuture || withoutSuffix
+                    ? 'néhány másodperc'
+                    : 'néhány másodperce';
+            case 'ss':
+                return num + (isFuture || withoutSuffix)
+                    ? ' másodperc'
+                    : ' másodperce';
+            case 'm':
+                return 'egy' + (isFuture || withoutSuffix ? ' perc' : ' perce');
+            case 'mm':
+                return num + (isFuture || withoutSuffix ? ' perc' : ' perce');
+            case 'h':
+                return 'egy' + (isFuture || withoutSuffix ? ' óra' : ' órája');
+            case 'hh':
+                return num + (isFuture || withoutSuffix ? ' óra' : ' órája');
+            case 'd':
+                return 'egy' + (isFuture || withoutSuffix ? ' nap' : ' napja');
+            case 'dd':
+                return num + (isFuture || withoutSuffix ? ' nap' : ' napja');
+            case 'M':
+                return 'egy' + (isFuture || withoutSuffix ? ' hónap' : ' hónapja');
+            case 'MM':
+                return num + (isFuture || withoutSuffix ? ' hónap' : ' hónapja');
+            case 'y':
+                return 'egy' + (isFuture || withoutSuffix ? ' év' : ' éve');
+            case 'yy':
+                return num + (isFuture || withoutSuffix ? ' év' : ' éve');
+        }
+        return '';
+    }
+    function week(isFuture) {
+        return (
+            (isFuture ? '' : '[múlt] ') +
+            '[' +
+            weekEndings[this.day()] +
+            '] LT[-kor]'
+        );
+    }
+
+    hooks.defineLocale('hu', {
+        months: 'január_február_március_április_május_június_július_augusztus_szeptember_október_november_december'.split(
+            '_'
+        ),
+        monthsShort:
+            'jan._feb._márc._ápr._máj._jún._júl._aug._szept._okt._nov._dec.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'vasárnap_hétfő_kedd_szerda_csütörtök_péntek_szombat'.split('_'),
+        weekdaysShort: 'vas_hét_kedd_sze_csüt_pén_szo'.split('_'),
+        weekdaysMin: 'v_h_k_sze_cs_p_szo'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'YYYY.MM.DD.',
+            LL: 'YYYY. MMMM D.',
+            LLL: 'YYYY. MMMM D. H:mm',
+            LLLL: 'YYYY. MMMM D., dddd H:mm',
+        },
+        meridiemParse: /de|du/i,
+        isPM: function (input) {
+            return input.charAt(1).toLowerCase() === 'u';
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 12) {
+                return isLower === true ? 'de' : 'DE';
+            } else {
+                return isLower === true ? 'du' : 'DU';
+            }
+        },
+        calendar: {
+            sameDay: '[ma] LT[-kor]',
+            nextDay: '[holnap] LT[-kor]',
+            nextWeek: function () {
+                return week.call(this, true);
+            },
+            lastDay: '[tegnap] LT[-kor]',
+            lastWeek: function () {
+                return week.call(this, false);
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s múlva',
+            past: '%s',
+            s: translate$4,
+            ss: translate$4,
+            m: translate$4,
+            mm: translate$4,
+            h: translate$4,
+            hh: translate$4,
+            d: translate$4,
+            dd: translate$4,
+            M: translate$4,
+            MM: translate$4,
+            y: translate$4,
+            yy: translate$4,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('hy-am', {
+        months: {
+            format: 'հունվարի_փետրվարի_մարտի_ապրիլի_մայիսի_հունիսի_հուլիսի_օգոստոսի_սեպտեմբերի_հոկտեմբերի_նոյեմբերի_դեկտեմբերի'.split(
+                '_'
+            ),
+            standalone:
+                'հունվար_փետրվար_մարտ_ապրիլ_մայիս_հունիս_հուլիս_օգոստոս_սեպտեմբեր_հոկտեմբեր_նոյեմբեր_դեկտեմբեր'.split(
+                    '_'
+                ),
+        },
+        monthsShort: 'հնվ_փտր_մրտ_ապր_մյս_հնս_հլս_օգս_սպտ_հկտ_նմբ_դկտ'.split('_'),
+        weekdays:
+            'կիրակի_երկուշաբթի_երեքշաբթի_չորեքշաբթի_հինգշաբթի_ուրբաթ_շաբաթ'.split(
+                '_'
+            ),
+        weekdaysShort: 'կրկ_երկ_երք_չրք_հնգ_ուրբ_շբթ'.split('_'),
+        weekdaysMin: 'կրկ_երկ_երք_չրք_հնգ_ուրբ_շբթ'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY թ.',
+            LLL: 'D MMMM YYYY թ., HH:mm',
+            LLLL: 'dddd, D MMMM YYYY թ., HH:mm',
+        },
+        calendar: {
+            sameDay: '[այսօր] LT',
+            nextDay: '[վաղը] LT',
+            lastDay: '[երեկ] LT',
+            nextWeek: function () {
+                return 'dddd [օրը ժամը] LT';
+            },
+            lastWeek: function () {
+                return '[անցած] dddd [օրը ժամը] LT';
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s հետո',
+            past: '%s առաջ',
+            s: 'մի քանի վայրկյան',
+            ss: '%d վայրկյան',
+            m: 'րոպե',
+            mm: '%d րոպե',
+            h: 'ժամ',
+            hh: '%d ժամ',
+            d: 'օր',
+            dd: '%d օր',
+            M: 'ամիս',
+            MM: '%d ամիս',
+            y: 'տարի',
+            yy: '%d տարի',
+        },
+        meridiemParse: /գիշերվա|առավոտվա|ցերեկվա|երեկոյան/,
+        isPM: function (input) {
+            return /^(ցերեկվա|երեկոյան)$/.test(input);
+        },
+        meridiem: function (hour) {
+            if (hour < 4) {
+                return 'գիշերվա';
+            } else if (hour < 12) {
+                return 'առավոտվա';
+            } else if (hour < 17) {
+                return 'ցերեկվա';
+            } else {
+                return 'երեկոյան';
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}|\d{1,2}-(ին|րդ)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'DDD':
+                case 'w':
+                case 'W':
+                case 'DDDo':
+                    if (number === 1) {
+                        return number + '-ին';
+                    }
+                    return number + '-րդ';
+                default:
+                    return number;
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('id', {
+        months: 'Januari_Februari_Maret_April_Mei_Juni_Juli_Agustus_September_Oktober_November_Desember'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_Mei_Jun_Jul_Agt_Sep_Okt_Nov_Des'.split('_'),
+        weekdays: 'Minggu_Senin_Selasa_Rabu_Kamis_Jumat_Sabtu'.split('_'),
+        weekdaysShort: 'Min_Sen_Sel_Rab_Kam_Jum_Sab'.split('_'),
+        weekdaysMin: 'Mg_Sn_Sl_Rb_Km_Jm_Sb'.split('_'),
+        longDateFormat: {
+            LT: 'HH.mm',
+            LTS: 'HH.mm.ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY [pukul] HH.mm',
+            LLLL: 'dddd, D MMMM YYYY [pukul] HH.mm',
+        },
+        meridiemParse: /pagi|siang|sore|malam/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'pagi') {
+                return hour;
+            } else if (meridiem === 'siang') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === 'sore' || meridiem === 'malam') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 11) {
+                return 'pagi';
+            } else if (hours < 15) {
+                return 'siang';
+            } else if (hours < 19) {
+                return 'sore';
+            } else {
+                return 'malam';
+            }
+        },
+        calendar: {
+            sameDay: '[Hari ini pukul] LT',
+            nextDay: '[Besok pukul] LT',
+            nextWeek: 'dddd [pukul] LT',
+            lastDay: '[Kemarin pukul] LT',
+            lastWeek: 'dddd [lalu pukul] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'dalam %s',
+            past: '%s yang lalu',
+            s: 'beberapa detik',
+            ss: '%d detik',
+            m: 'semenit',
+            mm: '%d menit',
+            h: 'sejam',
+            hh: '%d jam',
+            d: 'sehari',
+            dd: '%d hari',
+            M: 'sebulan',
+            MM: '%d bulan',
+            y: 'setahun',
+            yy: '%d tahun',
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function plural$2(n) {
+        if (n % 100 === 11) {
+            return true;
+        } else if (n % 10 === 1) {
+            return false;
+        }
+        return true;
+    }
+    function translate$5(number, withoutSuffix, key, isFuture) {
+        var result = number + ' ';
+        switch (key) {
+            case 's':
+                return withoutSuffix || isFuture
+                    ? 'nokkrar sekúndur'
+                    : 'nokkrum sekúndum';
+            case 'ss':
+                if (plural$2(number)) {
+                    return (
+                        result +
+                        (withoutSuffix || isFuture ? 'sekúndur' : 'sekúndum')
+                    );
+                }
+                return result + 'sekúnda';
+            case 'm':
+                return withoutSuffix ? 'mínúta' : 'mínútu';
+            case 'mm':
+                if (plural$2(number)) {
+                    return (
+                        result + (withoutSuffix || isFuture ? 'mínútur' : 'mínútum')
+                    );
+                } else if (withoutSuffix) {
+                    return result + 'mínúta';
+                }
+                return result + 'mínútu';
+            case 'hh':
+                if (plural$2(number)) {
+                    return (
+                        result +
+                        (withoutSuffix || isFuture
+                            ? 'klukkustundir'
+                            : 'klukkustundum')
+                    );
+                }
+                return result + 'klukkustund';
+            case 'd':
+                if (withoutSuffix) {
+                    return 'dagur';
+                }
+                return isFuture ? 'dag' : 'degi';
+            case 'dd':
+                if (plural$2(number)) {
+                    if (withoutSuffix) {
+                        return result + 'dagar';
+                    }
+                    return result + (isFuture ? 'daga' : 'dögum');
+                } else if (withoutSuffix) {
+                    return result + 'dagur';
+                }
+                return result + (isFuture ? 'dag' : 'degi');
+            case 'M':
+                if (withoutSuffix) {
+                    return 'mánuður';
+                }
+                return isFuture ? 'mánuð' : 'mánuði';
+            case 'MM':
+                if (plural$2(number)) {
+                    if (withoutSuffix) {
+                        return result + 'mánuðir';
+                    }
+                    return result + (isFuture ? 'mánuði' : 'mánuðum');
+                } else if (withoutSuffix) {
+                    return result + 'mánuður';
+                }
+                return result + (isFuture ? 'mánuð' : 'mánuði');
+            case 'y':
+                return withoutSuffix || isFuture ? 'ár' : 'ári';
+            case 'yy':
+                if (plural$2(number)) {
+                    return result + (withoutSuffix || isFuture ? 'ár' : 'árum');
+                }
+                return result + (withoutSuffix || isFuture ? 'ár' : 'ári');
+        }
+    }
+
+    hooks.defineLocale('is', {
+        months: 'janúar_febrúar_mars_apríl_maí_júní_júlí_ágúst_september_október_nóvember_desember'.split(
+            '_'
+        ),
+        monthsShort: 'jan_feb_mar_apr_maí_jún_júl_ágú_sep_okt_nóv_des'.split('_'),
+        weekdays:
+            'sunnudagur_mánudagur_þriðjudagur_miðvikudagur_fimmtudagur_föstudagur_laugardagur'.split(
+                '_'
+            ),
+        weekdaysShort: 'sun_mán_þri_mið_fim_fös_lau'.split('_'),
+        weekdaysMin: 'Su_Má_Þr_Mi_Fi_Fö_La'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY [kl.] H:mm',
+            LLLL: 'dddd, D. MMMM YYYY [kl.] H:mm',
+        },
+        calendar: {
+            sameDay: '[í dag kl.] LT',
+            nextDay: '[á morgun kl.] LT',
+            nextWeek: 'dddd [kl.] LT',
+            lastDay: '[í gær kl.] LT',
+            lastWeek: '[síðasta] dddd [kl.] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'eftir %s',
+            past: 'fyrir %s síðan',
+            s: translate$5,
+            ss: translate$5,
+            m: translate$5,
+            mm: translate$5,
+            h: 'klukkustund',
+            hh: translate$5,
+            d: translate$5,
+            dd: translate$5,
+            M: translate$5,
+            MM: translate$5,
+            y: translate$5,
+            yy: translate$5,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('it-ch', {
+        months: 'gennaio_febbraio_marzo_aprile_maggio_giugno_luglio_agosto_settembre_ottobre_novembre_dicembre'.split(
+            '_'
+        ),
+        monthsShort: 'gen_feb_mar_apr_mag_giu_lug_ago_set_ott_nov_dic'.split('_'),
+        weekdays: 'domenica_lunedì_martedì_mercoledì_giovedì_venerdì_sabato'.split(
+            '_'
+        ),
+        weekdaysShort: 'dom_lun_mar_mer_gio_ven_sab'.split('_'),
+        weekdaysMin: 'do_lu_ma_me_gi_ve_sa'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Oggi alle] LT',
+            nextDay: '[Domani alle] LT',
+            nextWeek: 'dddd [alle] LT',
+            lastDay: '[Ieri alle] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[la scorsa] dddd [alle] LT';
+                    default:
+                        return '[lo scorso] dddd [alle] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: function (s) {
+                return (/^[0-9].+$/.test(s) ? 'tra' : 'in') + ' ' + s;
+            },
+            past: '%s fa',
+            s: 'alcuni secondi',
+            ss: '%d secondi',
+            m: 'un minuto',
+            mm: '%d minuti',
+            h: "un'ora",
+            hh: '%d ore',
+            d: 'un giorno',
+            dd: '%d giorni',
+            M: 'un mese',
+            MM: '%d mesi',
+            y: 'un anno',
+            yy: '%d anni',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('it', {
+        months: 'gennaio_febbraio_marzo_aprile_maggio_giugno_luglio_agosto_settembre_ottobre_novembre_dicembre'.split(
+            '_'
+        ),
+        monthsShort: 'gen_feb_mar_apr_mag_giu_lug_ago_set_ott_nov_dic'.split('_'),
+        weekdays: 'domenica_lunedì_martedì_mercoledì_giovedì_venerdì_sabato'.split(
+            '_'
+        ),
+        weekdaysShort: 'dom_lun_mar_mer_gio_ven_sab'.split('_'),
+        weekdaysMin: 'do_lu_ma_me_gi_ve_sa'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: function () {
+                return (
+                    '[Oggi a' +
+                    (this.hours() > 1 ? 'lle ' : this.hours() === 0 ? ' ' : "ll'") +
+                    ']LT'
+                );
+            },
+            nextDay: function () {
+                return (
+                    '[Domani a' +
+                    (this.hours() > 1 ? 'lle ' : this.hours() === 0 ? ' ' : "ll'") +
+                    ']LT'
+                );
+            },
+            nextWeek: function () {
+                return (
+                    'dddd [a' +
+                    (this.hours() > 1 ? 'lle ' : this.hours() === 0 ? ' ' : "ll'") +
+                    ']LT'
+                );
+            },
+            lastDay: function () {
+                return (
+                    '[Ieri a' +
+                    (this.hours() > 1 ? 'lle ' : this.hours() === 0 ? ' ' : "ll'") +
+                    ']LT'
+                );
+            },
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return (
+                            '[La scorsa] dddd [a' +
+                            (this.hours() > 1
+                                ? 'lle '
+                                : this.hours() === 0
+                                  ? ' '
+                                  : "ll'") +
+                            ']LT'
+                        );
+                    default:
+                        return (
+                            '[Lo scorso] dddd [a' +
+                            (this.hours() > 1
+                                ? 'lle '
+                                : this.hours() === 0
+                                  ? ' '
+                                  : "ll'") +
+                            ']LT'
+                        );
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'tra %s',
+            past: '%s fa',
+            s: 'alcuni secondi',
+            ss: '%d secondi',
+            m: 'un minuto',
+            mm: '%d minuti',
+            h: "un'ora",
+            hh: '%d ore',
+            d: 'un giorno',
+            dd: '%d giorni',
+            w: 'una settimana',
+            ww: '%d settimane',
+            M: 'un mese',
+            MM: '%d mesi',
+            y: 'un anno',
+            yy: '%d anni',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('ja', {
+        eras: [
+            {
+                since: '2019-05-01',
+                offset: 1,
+                name: '令和',
+                narrow: '㋿',
+                abbr: 'R',
+            },
+            {
+                since: '1989-01-08',
+                until: '2019-04-30',
+                offset: 1,
+                name: '平成',
+                narrow: '㍻',
+                abbr: 'H',
+            },
+            {
+                since: '1926-12-25',
+                until: '1989-01-07',
+                offset: 1,
+                name: '昭和',
+                narrow: '㍼',
+                abbr: 'S',
+            },
+            {
+                since: '1912-07-30',
+                until: '1926-12-24',
+                offset: 1,
+                name: '大正',
+                narrow: '㍽',
+                abbr: 'T',
+            },
+            {
+                since: '1873-01-01',
+                until: '1912-07-29',
+                offset: 6,
+                name: '明治',
+                narrow: '㍾',
+                abbr: 'M',
+            },
+            {
+                since: '0001-01-01',
+                until: '1873-12-31',
+                offset: 1,
+                name: '西暦',
+                narrow: 'AD',
+                abbr: 'AD',
+            },
+            {
+                since: '0000-12-31',
+                until: -Infinity,
+                offset: 1,
+                name: '紀元前',
+                narrow: 'BC',
+                abbr: 'BC',
+            },
+        ],
+        eraYearOrdinalRegex: /(元|\d+)年/,
+        eraYearOrdinalParse: function (input, match) {
+            return match[1] === '元' ? 1 : parseInt(match[1] || input, 10);
+        },
+        months: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split('_'),
+        monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+            '_'
+        ),
+        weekdays: '日曜日_月曜日_火曜日_水曜日_木曜日_金曜日_土曜日'.split('_'),
+        weekdaysShort: '日_月_火_水_木_金_土'.split('_'),
+        weekdaysMin: '日_月_火_水_木_金_土'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY/MM/DD',
+            LL: 'YYYY年M月D日',
+            LLL: 'YYYY年M月D日 HH:mm',
+            LLLL: 'YYYY年M月D日 dddd HH:mm',
+            l: 'YYYY/MM/DD',
+            ll: 'YYYY年M月D日',
+            lll: 'YYYY年M月D日 HH:mm',
+            llll: 'YYYY年M月D日(ddd) HH:mm',
+        },
+        meridiemParse: /午前|午後/i,
+        isPM: function (input) {
+            return input === '午後';
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return '午前';
+            } else {
+                return '午後';
+            }
+        },
+        calendar: {
+            sameDay: '[今日] LT',
+            nextDay: '[明日] LT',
+            nextWeek: function (now) {
+                if (now.week() !== this.week()) {
+                    return '[来週]dddd LT';
+                } else {
+                    return 'dddd LT';
+                }
+            },
+            lastDay: '[昨日] LT',
+            lastWeek: function (now) {
+                if (this.week() !== now.week()) {
+                    return '[先週]dddd LT';
+                } else {
+                    return 'dddd LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}日/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'y':
+                    return number === 1 ? '元年' : number + '年';
+                case 'd':
+                case 'D':
+                case 'DDD':
+                    return number + '日';
+                default:
+                    return number;
+            }
+        },
+        relativeTime: {
+            future: '%s後',
+            past: '%s前',
+            s: '数秒',
+            ss: '%d秒',
+            m: '1分',
+            mm: '%d分',
+            h: '1時間',
+            hh: '%d時間',
+            d: '1日',
+            dd: '%d日',
+            M: '1ヶ月',
+            MM: '%dヶ月',
+            y: '1年',
+            yy: '%d年',
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('jv', {
+        months: 'Januari_Februari_Maret_April_Mei_Juni_Juli_Agustus_September_Oktober_Nopember_Desember'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mar_Apr_Mei_Jun_Jul_Ags_Sep_Okt_Nop_Des'.split('_'),
+        weekdays: 'Minggu_Senen_Seloso_Rebu_Kemis_Jemuwah_Septu'.split('_'),
+        weekdaysShort: 'Min_Sen_Sel_Reb_Kem_Jem_Sep'.split('_'),
+        weekdaysMin: 'Mg_Sn_Sl_Rb_Km_Jm_Sp'.split('_'),
+        longDateFormat: {
+            LT: 'HH.mm',
+            LTS: 'HH.mm.ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY [pukul] HH.mm',
+            LLLL: 'dddd, D MMMM YYYY [pukul] HH.mm',
+        },
+        meridiemParse: /enjing|siyang|sonten|ndalu/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'enjing') {
+                return hour;
+            } else if (meridiem === 'siyang') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === 'sonten' || meridiem === 'ndalu') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 11) {
+                return 'enjing';
+            } else if (hours < 15) {
+                return 'siyang';
+            } else if (hours < 19) {
+                return 'sonten';
+            } else {
+                return 'ndalu';
+            }
+        },
+        calendar: {
+            sameDay: '[Dinten puniko pukul] LT',
+            nextDay: '[Mbenjang pukul] LT',
+            nextWeek: 'dddd [pukul] LT',
+            lastDay: '[Kala wingi pukul] LT',
+            lastWeek: 'dddd [kepengker pukul] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'wonten ing %s',
+            past: '%s ingkang kepengker',
+            s: 'sawetawis detik',
+            ss: '%d detik',
+            m: 'setunggal menit',
+            mm: '%d menit',
+            h: 'setunggal jam',
+            hh: '%d jam',
+            d: 'sedinten',
+            dd: '%d dinten',
+            M: 'sewulan',
+            MM: '%d wulan',
+            y: 'setaun',
+            yy: '%d taun',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('ka', {
+        months: 'იანვარი_თებერვალი_მარტი_აპრილი_მაისი_ივნისი_ივლისი_აგვისტო_სექტემბერი_ოქტომბერი_ნოემბერი_დეკემბერი'.split(
+            '_'
+        ),
+        monthsShort: 'იან_თებ_მარ_აპრ_მაი_ივნ_ივლ_აგვ_სექ_ოქტ_ნოე_დეკ'.split('_'),
+        weekdays: {
+            standalone:
+                'კვირა_ორშაბათი_სამშაბათი_ოთხშაბათი_ხუთშაბათი_პარასკევი_შაბათი'.split(
+                    '_'
+                ),
+            format: 'კვირას_ორშაბათს_სამშაბათს_ოთხშაბათს_ხუთშაბათს_პარასკევს_შაბათს'.split(
+                '_'
+            ),
+            isFormat: /(წინა|შემდეგ)/,
+        },
+        weekdaysShort: 'კვი_ორშ_სამ_ოთხ_ხუთ_პარ_შაბ'.split('_'),
+        weekdaysMin: 'კვ_ორ_სა_ოთ_ხუ_პა_შა'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[დღეს] LT[-ზე]',
+            nextDay: '[ხვალ] LT[-ზე]',
+            lastDay: '[გუშინ] LT[-ზე]',
+            nextWeek: '[შემდეგ] dddd LT[-ზე]',
+            lastWeek: '[წინა] dddd LT-ზე',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: function (s) {
+                return s.replace(
+                    /(წამ|წუთ|საათ|წელ|დღ|თვ)(ი|ე)/,
+                    function ($0, $1, $2) {
+                        return $2 === 'ი' ? $1 + 'ში' : $1 + $2 + 'ში';
+                    }
+                );
+            },
+            past: function (s) {
+                if (/(წამი|წუთი|საათი|დღე|თვე)/.test(s)) {
+                    return s.replace(/(ი|ე)$/, 'ის წინ');
+                }
+                if (/წელი/.test(s)) {
+                    return s.replace(/წელი$/, 'წლის წინ');
+                }
+                return s;
+            },
+            s: 'რამდენიმე წამი',
+            ss: '%d წამი',
+            m: 'წუთი',
+            mm: '%d წუთი',
+            h: 'საათი',
+            hh: '%d საათი',
+            d: 'დღე',
+            dd: '%d დღე',
+            M: 'თვე',
+            MM: '%d თვე',
+            y: 'წელი',
+            yy: '%d წელი',
+        },
+        dayOfMonthOrdinalParse: /0|1-ლი|მე-\d{1,2}|\d{1,2}-ე/,
+        ordinal: function (number) {
+            if (number === 0) {
+                return number;
+            }
+            if (number === 1) {
+                return number + '-ლი';
+            }
+            if (
+                number < 20 ||
+                (number <= 100 && number % 20 === 0) ||
+                number % 100 === 0
+            ) {
+                return 'მე-' + number;
+            }
+            return number + '-ე';
+        },
+        week: {
+            dow: 1,
+            doy: 7,
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var suffixes$1 = {
+        0: '-ші',
+        1: '-ші',
+        2: '-ші',
+        3: '-ші',
+        4: '-ші',
+        5: '-ші',
+        6: '-шы',
+        7: '-ші',
+        8: '-ші',
+        9: '-шы',
+        10: '-шы',
+        20: '-шы',
+        30: '-шы',
+        40: '-шы',
+        50: '-ші',
+        60: '-шы',
+        70: '-ші',
+        80: '-ші',
+        90: '-шы',
+        100: '-ші',
+    };
+
+    hooks.defineLocale('kk', {
+        months: 'қаңтар_ақпан_наурыз_сәуір_мамыр_маусым_шілде_тамыз_қыркүйек_қазан_қараша_желтоқсан'.split(
+            '_'
+        ),
+        monthsShort: 'қаң_ақп_нау_сәу_мам_мау_шіл_там_қыр_қаз_қар_жел'.split('_'),
+        weekdays: 'жексенбі_дүйсенбі_сейсенбі_сәрсенбі_бейсенбі_жұма_сенбі'.split(
+            '_'
+        ),
+        weekdaysShort: 'жек_дүй_сей_сәр_бей_жұм_сен'.split('_'),
+        weekdaysMin: 'жк_дй_сй_ср_бй_жм_сн'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Бүгін сағат] LT',
+            nextDay: '[Ертең сағат] LT',
+            nextWeek: 'dddd [сағат] LT',
+            lastDay: '[Кеше сағат] LT',
+            lastWeek: '[Өткен аптаның] dddd [сағат] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s ішінде',
+            past: '%s бұрын',
+            s: 'бірнеше секунд',
+            ss: '%d секунд',
+            m: 'бір минут',
+            mm: '%d минут',
+            h: 'бір сағат',
+            hh: '%d сағат',
+            d: 'бір күн',
+            dd: '%d күн',
+            M: 'бір ай',
+            MM: '%d ай',
+            y: 'бір жыл',
+            yy: '%d жыл',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(ші|шы)/,
+        ordinal: function (number) {
+            var a = number % 10,
+                b = number >= 100 ? 100 : null;
+            return number + (suffixes$1[number] || suffixes$1[a] || suffixes$1[b]);
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$a = {
+            1: '១',
+            2: '២',
+            3: '៣',
+            4: '៤',
+            5: '៥',
+            6: '៦',
+            7: '៧',
+            8: '៨',
+            9: '៩',
+            0: '០',
+        },
+        numberMap$9 = {
+            '១': '1',
+            '២': '2',
+            '៣': '3',
+            '៤': '4',
+            '៥': '5',
+            '៦': '6',
+            '៧': '7',
+            '៨': '8',
+            '៩': '9',
+            '០': '0',
+        };
+
+    hooks.defineLocale('km', {
+        months: 'មករា_កុម្ភៈ_មីនា_មេសា_ឧសភា_មិថុនា_កក្កដា_សីហា_កញ្ញា_តុលា_វិច្ឆិកា_ធ្នូ'.split(
+            '_'
+        ),
+        monthsShort:
+            'មករា_កុម្ភៈ_មីនា_មេសា_ឧសភា_មិថុនា_កក្កដា_សីហា_កញ្ញា_តុលា_វិច្ឆិកា_ធ្នូ'.split(
+                '_'
+            ),
+        weekdays: 'អាទិត្យ_ច័ន្ទ_អង្គារ_ពុធ_ព្រហស្បតិ៍_សុក្រ_សៅរ៍'.split('_'),
+        weekdaysShort: 'អា_ច_អ_ព_ព្រ_សុ_ស'.split('_'),
+        weekdaysMin: 'អា_ច_អ_ព_ព្រ_សុ_ស'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ព្រឹក|ល្ងាច/,
+        isPM: function (input) {
+            return input === 'ល្ងាច';
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ព្រឹក';
+            } else {
+                return 'ល្ងាច';
+            }
+        },
+        calendar: {
+            sameDay: '[ថ្ងៃនេះ ម៉ោង] LT',
+            nextDay: '[ស្អែក ម៉ោង] LT',
+            nextWeek: 'dddd [ម៉ោង] LT',
+            lastDay: '[ម្សិលមិញ ម៉ោង] LT',
+            lastWeek: 'dddd [សប្តាហ៍មុន] [ម៉ោង] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%sទៀត',
+            past: '%sមុន',
+            s: 'ប៉ុន្មានវិនាទី',
+            ss: '%d វិនាទី',
+            m: 'មួយនាទី',
+            mm: '%d នាទី',
+            h: 'មួយម៉ោង',
+            hh: '%d ម៉ោង',
+            d: 'មួយថ្ងៃ',
+            dd: '%d ថ្ងៃ',
+            M: 'មួយខែ',
+            MM: '%d ខែ',
+            y: 'មួយឆ្នាំ',
+            yy: '%d ឆ្នាំ',
+        },
+        dayOfMonthOrdinalParse: /ទី\d{1,2}/,
+        ordinal: 'ទី%d',
+        preparse: function (string) {
+            return string.replace(/[១២៣៤៥៦៧៨៩០]/g, function (match) {
+                return numberMap$9[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap$a[match];
+            });
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$b = {
+            1: '೧',
+            2: '೨',
+            3: '೩',
+            4: '೪',
+            5: '೫',
+            6: '೬',
+            7: '೭',
+            8: '೮',
+            9: '೯',
+            0: '೦',
+        },
+        numberMap$a = {
+            '೧': '1',
+            '೨': '2',
+            '೩': '3',
+            '೪': '4',
+            '೫': '5',
+            '೬': '6',
+            '೭': '7',
+            '೮': '8',
+            '೯': '9',
+            '೦': '0',
+        };
+
+    hooks.defineLocale('kn', {
+        months: 'ಜನವರಿ_ಫೆಬ್ರವರಿ_ಮಾರ್ಚ್_ಏಪ್ರಿಲ್_ಮೇ_ಜೂನ್_ಜುಲೈ_ಆಗಸ್ಟ್_ಸೆಪ್ಟೆಂಬರ್_ಅಕ್ಟೋಬರ್_ನವೆಂಬರ್_ಡಿಸೆಂಬರ್'.split(
+            '_'
+        ),
+        monthsShort:
+            'ಜನ_ಫೆಬ್ರ_ಮಾರ್ಚ್_ಏಪ್ರಿಲ್_ಮೇ_ಜೂನ್_ಜುಲೈ_ಆಗಸ್ಟ್_ಸೆಪ್ಟೆಂ_ಅಕ್ಟೋ_ನವೆಂ_ಡಿಸೆಂ'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'ಭಾನುವಾರ_ಸೋಮವಾರ_ಮಂಗಳವಾರ_ಬುಧವಾರ_ಗುರುವಾರ_ಶುಕ್ರವಾರ_ಶನಿವಾರ'.split(
+            '_'
+        ),
+        weekdaysShort: 'ಭಾನು_ಸೋಮ_ಮಂಗಳ_ಬುಧ_ಗುರು_ಶುಕ್ರ_ಶನಿ'.split('_'),
+        weekdaysMin: 'ಭಾ_ಸೋ_ಮಂ_ಬು_ಗು_ಶು_ಶ'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm',
+            LTS: 'A h:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm',
+        },
+        calendar: {
+            sameDay: '[ಇಂದು] LT',
+            nextDay: '[ನಾಳೆ] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[ನಿನ್ನೆ] LT',
+            lastWeek: '[ಕೊನೆಯ] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s ನಂತರ',
+            past: '%s ಹಿಂದೆ',
+            s: 'ಕೆಲವು ಕ್ಷಣಗಳು',
+            ss: '%d ಸೆಕೆಂಡುಗಳು',
+            m: 'ಒಂದು ನಿಮಿಷ',
+            mm: '%d ನಿಮಿಷ',
+            h: 'ಒಂದು ಗಂಟೆ',
+            hh: '%d ಗಂಟೆ',
+            d: 'ಒಂದು ದಿನ',
+            dd: '%d ದಿನ',
+            M: 'ಒಂದು ತಿಂಗಳು',
+            MM: '%d ತಿಂಗಳು',
+            y: 'ಒಂದು ವರ್ಷ',
+            yy: '%d ವರ್ಷ',
+        },
+        preparse: function (string) {
+            return string.replace(/[೧೨೩೪೫೬೭೮೯೦]/g, function (match) {
+                return numberMap$a[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap$b[match];
+            });
+        },
+        meridiemParse: /ರಾತ್ರಿ|ಬೆಳಿಗ್ಗೆ|ಮಧ್ಯಾಹ್ನ|ಸಂಜೆ/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'ರಾತ್ರಿ') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'ಬೆಳಿಗ್ಗೆ') {
+                return hour;
+            } else if (meridiem === 'ಮಧ್ಯಾಹ್ನ') {
+                return hour >= 10 ? hour : hour + 12;
+            } else if (meridiem === 'ಸಂಜೆ') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'ರಾತ್ರಿ';
+            } else if (hour < 10) {
+                return 'ಬೆಳಿಗ್ಗೆ';
+            } else if (hour < 17) {
+                return 'ಮಧ್ಯಾಹ್ನ';
+            } else if (hour < 20) {
+                return 'ಸಂಜೆ';
+            } else {
+                return 'ರಾತ್ರಿ';
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(ನೇ)/,
+        ordinal: function (number) {
+            return number + 'ನೇ';
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('ko', {
+        months: '1월_2월_3월_4월_5월_6월_7월_8월_9월_10월_11월_12월'.split('_'),
+        monthsShort: '1월_2월_3월_4월_5월_6월_7월_8월_9월_10월_11월_12월'.split(
+            '_'
+        ),
+        weekdays: '일요일_월요일_화요일_수요일_목요일_금요일_토요일'.split('_'),
+        weekdaysShort: '일_월_화_수_목_금_토'.split('_'),
+        weekdaysMin: '일_월_화_수_목_금_토'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm',
+            LTS: 'A h:mm:ss',
+            L: 'YYYY.MM.DD.',
+            LL: 'YYYY년 MMMM D일',
+            LLL: 'YYYY년 MMMM D일 A h:mm',
+            LLLL: 'YYYY년 MMMM D일 dddd A h:mm',
+            l: 'YYYY.MM.DD.',
+            ll: 'YYYY년 MMMM D일',
+            lll: 'YYYY년 MMMM D일 A h:mm',
+            llll: 'YYYY년 MMMM D일 dddd A h:mm',
+        },
+        calendar: {
+            sameDay: '오늘 LT',
+            nextDay: '내일 LT',
+            nextWeek: 'dddd LT',
+            lastDay: '어제 LT',
+            lastWeek: '지난주 dddd LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s 후',
+            past: '%s 전',
+            s: '몇 초',
+            ss: '%d초',
+            m: '1분',
+            mm: '%d분',
+            h: '한 시간',
+            hh: '%d시간',
+            d: '하루',
+            dd: '%d일',
+            M: '한 달',
+            MM: '%d달',
+            y: '일 년',
+            yy: '%d년',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(일|월|주)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'DDD':
+                    return number + '일';
+                case 'M':
+                    return number + '월';
+                case 'w':
+                case 'W':
+                    return number + '주';
+                default:
+                    return number;
+            }
+        },
+        meridiemParse: /오전|오후/,
+        isPM: function (token) {
+            return token === '오후';
+        },
+        meridiem: function (hour, minute, isUpper) {
+            return hour < 12 ? '오전' : '오후';
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function processRelativeTime$7(num, withoutSuffix, key, isFuture) {
+        var format = {
+            s: ['çend sanîye', 'çend sanîyeyan'],
+            ss: [num + ' sanîye', num + ' sanîyeyan'],
+            m: ['deqîqeyek', 'deqîqeyekê'],
+            mm: [num + ' deqîqe', num + ' deqîqeyan'],
+            h: ['saetek', 'saetekê'],
+            hh: [num + ' saet', num + ' saetan'],
+            d: ['rojek', 'rojekê'],
+            dd: [num + ' roj', num + ' rojan'],
+            w: ['hefteyek', 'hefteyekê'],
+            ww: [num + ' hefte', num + ' hefteyan'],
+            M: ['mehek', 'mehekê'],
+            MM: [num + ' meh', num + ' mehan'],
+            y: ['salek', 'salekê'],
+            yy: [num + ' sal', num + ' salan'],
+        };
+        return withoutSuffix ? format[key][0] : format[key][1];
+    }
+    // function obliqueNumSuffix(num) {
+    //     if(num.includes(':'))
+    //         num = parseInt(num.split(':')[0]);
+    //     else
+    //         num = parseInt(num);
+    //     return num == 0 || num % 10 == 1 ? 'ê'
+    //                         : (num > 10 && num % 10 == 0 ? 'î' : 'an');
+    // }
+    function ezafeNumSuffix(num) {
+        num = '' + num;
+        var l = num.substring(num.length - 1),
+            ll = num.length > 1 ? num.substring(num.length - 2) : '';
+        if (
+            !(ll == 12 || ll == 13) &&
+            (l == '2' || l == '3' || ll == '50' || l == '70' || l == '80')
+        )
+            return 'yê';
+        return 'ê';
+    }
+
+    hooks.defineLocale('ku-kmr', {
+        // According to the spelling rules defined by the work group of Weqfa Mezopotamyayê (Mesopotamia Foundation)
+        // this should be: 'Kanûna Paşîn_Sibat_Adar_Nîsan_Gulan_Hezîran_Tîrmeh_Tebax_Îlon_Çirîya Pêşîn_Çirîya Paşîn_Kanûna Pêşîn'
+        // But the names below are more well known and handy
+        months: 'Rêbendan_Sibat_Adar_Nîsan_Gulan_Hezîran_Tîrmeh_Tebax_Îlon_Cotmeh_Mijdar_Berfanbar'.split(
+            '_'
+        ),
+        monthsShort: 'Rêb_Sib_Ada_Nîs_Gul_Hez_Tîr_Teb_Îlo_Cot_Mij_Ber'.split('_'),
+        monthsParseExact: true,
+        weekdays: 'Yekşem_Duşem_Sêşem_Çarşem_Pêncşem_În_Şemî'.split('_'),
+        weekdaysShort: 'Yek_Du_Sê_Çar_Pên_În_Şem'.split('_'),
+        weekdaysMin: 'Ye_Du_Sê_Ça_Pê_În_Şe'.split('_'),
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 12) {
+                return isLower ? 'bn' : 'BN';
+            } else {
+                return isLower ? 'pn' : 'PN';
+            }
+        },
+        meridiemParse: /bn|BN|pn|PN/,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'Do MMMM[a] YYYY[an]',
+            LLL: 'Do MMMM[a] YYYY[an] HH:mm',
+            LLLL: 'dddd, Do MMMM[a] YYYY[an] HH:mm',
+            ll: 'Do MMM[.] YYYY[an]',
+            lll: 'Do MMM[.] YYYY[an] HH:mm',
+            llll: 'ddd[.], Do MMM[.] YYYY[an] HH:mm',
+        },
+        calendar: {
+            sameDay: '[Îro di saet] LT [de]',
+            nextDay: '[Sibê di saet] LT [de]',
+            nextWeek: 'dddd [di saet] LT [de]',
+            lastDay: '[Duh di saet] LT [de]',
+            lastWeek: 'dddd[a borî di saet] LT [de]',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'di %s de',
+            past: 'berî %s',
+            s: processRelativeTime$7,
+            ss: processRelativeTime$7,
+            m: processRelativeTime$7,
+            mm: processRelativeTime$7,
+            h: processRelativeTime$7,
+            hh: processRelativeTime$7,
+            d: processRelativeTime$7,
+            dd: processRelativeTime$7,
+            w: processRelativeTime$7,
+            ww: processRelativeTime$7,
+            M: processRelativeTime$7,
+            MM: processRelativeTime$7,
+            y: processRelativeTime$7,
+            yy: processRelativeTime$7,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(?:yê|ê|\.)/,
+        ordinal: function (num, period) {
+            var p = period.toLowerCase();
+            if (p.includes('w') || p.includes('m')) return num + '.';
+
+            return num + ezafeNumSuffix(num);
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$c = {
+            1: '١',
+            2: '٢',
+            3: '٣',
+            4: '٤',
+            5: '٥',
+            6: '٦',
+            7: '٧',
+            8: '٨',
+            9: '٩',
+            0: '٠',
+        },
+        numberMap$b = {
+            '١': '1',
+            '٢': '2',
+            '٣': '3',
+            '٤': '4',
+            '٥': '5',
+            '٦': '6',
+            '٧': '7',
+            '٨': '8',
+            '٩': '9',
+            '٠': '0',
+        },
+        months$8 = [
+            'کانونی دووەم',
+            'شوبات',
+            'ئازار',
+            'نیسان',
+            'ئایار',
+            'حوزەیران',
+            'تەمموز',
+            'ئاب',
+            'ئەیلوول',
+            'تشرینی یەكەم',
+            'تشرینی دووەم',
+            'كانونی یەکەم',
+        ];
+
+    hooks.defineLocale('ku', {
+        months: months$8,
+        monthsShort: months$8,
+        weekdays:
+            'یه‌كشه‌ممه‌_دووشه‌ممه‌_سێشه‌ممه‌_چوارشه‌ممه‌_پێنجشه‌ممه‌_هه‌ینی_شه‌ممه‌'.split(
+                '_'
+            ),
+        weekdaysShort:
+            'یه‌كشه‌م_دووشه‌م_سێشه‌م_چوارشه‌م_پێنجشه‌م_هه‌ینی_شه‌ممه‌'.split('_'),
+        weekdaysMin: 'ی_د_س_چ_پ_ه_ش'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ئێواره‌|به‌یانی/,
+        isPM: function (input) {
+            return /ئێواره‌/.test(input);
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'به‌یانی';
+            } else {
+                return 'ئێواره‌';
+            }
+        },
+        calendar: {
+            sameDay: '[ئه‌مرۆ كاتژمێر] LT',
+            nextDay: '[به‌یانی كاتژمێر] LT',
+            nextWeek: 'dddd [كاتژمێر] LT',
+            lastDay: '[دوێنێ كاتژمێر] LT',
+            lastWeek: 'dddd [كاتژمێر] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'له‌ %s',
+            past: '%s',
+            s: 'چه‌ند چركه‌یه‌ك',
+            ss: 'چركه‌ %d',
+            m: 'یه‌ك خوله‌ك',
+            mm: '%d خوله‌ك',
+            h: 'یه‌ك كاتژمێر',
+            hh: '%d كاتژمێر',
+            d: 'یه‌ك ڕۆژ',
+            dd: '%d ڕۆژ',
+            M: 'یه‌ك مانگ',
+            MM: '%d مانگ',
+            y: 'یه‌ك ساڵ',
+            yy: '%d ساڵ',
+        },
+        preparse: function (string) {
+            return string
+                .replace(/[١٢٣٤٥٦٧٨٩٠]/g, function (match) {
+                    return numberMap$b[match];
+                })
+                .replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string
+                .replace(/\d/g, function (match) {
+                    return symbolMap$c[match];
+                })
+                .replace(/,/g, '،');
+        },
+        week: {
+            dow: 6, // Saturday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var suffixes$2 = {
+        0: '-чү',
+        1: '-чи',
+        2: '-чи',
+        3: '-чү',
+        4: '-чү',
+        5: '-чи',
+        6: '-чы',
+        7: '-чи',
+        8: '-чи',
+        9: '-чу',
+        10: '-чу',
+        20: '-чы',
+        30: '-чу',
+        40: '-чы',
+        50: '-чү',
+        60: '-чы',
+        70: '-чи',
+        80: '-чи',
+        90: '-чу',
+        100: '-чү',
+    };
+
+    hooks.defineLocale('ky', {
+        months: 'январь_февраль_март_апрель_май_июнь_июль_август_сентябрь_октябрь_ноябрь_декабрь'.split(
+            '_'
+        ),
+        monthsShort: 'янв_фев_март_апр_май_июнь_июль_авг_сен_окт_ноя_дек'.split(
+            '_'
+        ),
+        weekdays: 'Жекшемби_Дүйшөмбү_Шейшемби_Шаршемби_Бейшемби_Жума_Ишемби'.split(
+            '_'
+        ),
+        weekdaysShort: 'Жек_Дүй_Шей_Шар_Бей_Жум_Ише'.split('_'),
+        weekdaysMin: 'Жк_Дй_Шй_Шр_Бй_Жм_Иш'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Бүгүн саат] LT',
+            nextDay: '[Эртең саат] LT',
+            nextWeek: 'dddd [саат] LT',
+            lastDay: '[Кечээ саат] LT',
+            lastWeek: '[Өткөн аптанын] dddd [күнү] [саат] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s ичинде',
+            past: '%s мурун',
+            s: 'бирнече секунд',
+            ss: '%d секунд',
+            m: 'бир мүнөт',
+            mm: '%d мүнөт',
+            h: 'бир саат',
+            hh: '%d саат',
+            d: 'бир күн',
+            dd: '%d күн',
+            M: 'бир ай',
+            MM: '%d ай',
+            y: 'бир жыл',
+            yy: '%d жыл',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(чи|чы|чү|чу)/,
+        ordinal: function (number) {
+            var a = number % 10,
+                b = number >= 100 ? 100 : null;
+            return number + (suffixes$2[number] || suffixes$2[a] || suffixes$2[b]);
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function processRelativeTime$8(number, withoutSuffix, key, isFuture) {
+        var format = {
+            m: ['eng Minutt', 'enger Minutt'],
+            h: ['eng Stonn', 'enger Stonn'],
+            d: ['een Dag', 'engem Dag'],
+            M: ['ee Mount', 'engem Mount'],
+            y: ['ee Joer', 'engem Joer'],
+        };
+        return withoutSuffix ? format[key][0] : format[key][1];
+    }
+    function processFutureTime(string) {
+        var number = string.substr(0, string.indexOf(' '));
+        if (eifelerRegelAppliesToNumber(number)) {
+            return 'a ' + string;
+        }
+        return 'an ' + string;
+    }
+    function processPastTime(string) {
+        var number = string.substr(0, string.indexOf(' '));
+        if (eifelerRegelAppliesToNumber(number)) {
+            return 'viru ' + string;
+        }
+        return 'virun ' + string;
+    }
+    /**
+     * Returns true if the word before the given number loses the '-n' ending.
+     * e.g. 'an 10 Deeg' but 'a 5 Deeg'
+     *
+     * @param number {integer}
+     * @returns {boolean}
+     */
+    function eifelerRegelAppliesToNumber(number) {
+        number = parseInt(number, 10);
+        if (isNaN(number)) {
+            return false;
+        }
+        if (number < 0) {
+            // Negative Number --> always true
+            return true;
+        } else if (number < 10) {
+            // Only 1 digit
+            if (4 <= number && number <= 7) {
+                return true;
+            }
+            return false;
+        } else if (number < 100) {
+            // 2 digits
+            var lastDigit = number % 10,
+                firstDigit = number / 10;
+            if (lastDigit === 0) {
+                return eifelerRegelAppliesToNumber(firstDigit);
+            }
+            return eifelerRegelAppliesToNumber(lastDigit);
+        } else if (number < 10000) {
+            // 3 or 4 digits --> recursively check first digit
+            while (number >= 10) {
+                number = number / 10;
+            }
+            return eifelerRegelAppliesToNumber(number);
+        } else {
+            // Anything larger than 4 digits: recursively check first n-3 digits
+            number = number / 1000;
+            return eifelerRegelAppliesToNumber(number);
+        }
+    }
+
+    hooks.defineLocale('lb', {
+        months: 'Januar_Februar_Mäerz_Abrëll_Mee_Juni_Juli_August_September_Oktober_November_Dezember'.split(
+            '_'
+        ),
+        monthsShort:
+            'Jan._Febr._Mrz._Abr._Mee_Jun._Jul._Aug._Sept._Okt._Nov._Dez.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays:
+            'Sonndeg_Méindeg_Dënschdeg_Mëttwoch_Donneschdeg_Freideg_Samschdeg'.split(
+                '_'
+            ),
+        weekdaysShort: 'So._Mé._Dë._Më._Do._Fr._Sa.'.split('_'),
+        weekdaysMin: 'So_Mé_Dë_Më_Do_Fr_Sa'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm [Auer]',
+            LTS: 'H:mm:ss [Auer]',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY H:mm [Auer]',
+            LLLL: 'dddd, D. MMMM YYYY H:mm [Auer]',
+        },
+        calendar: {
+            sameDay: '[Haut um] LT',
+            sameElse: 'L',
+            nextDay: '[Muer um] LT',
+            nextWeek: 'dddd [um] LT',
+            lastDay: '[Gëschter um] LT',
+            lastWeek: function () {
+                // Different date string for 'Dënschdeg' (Tuesday) and 'Donneschdeg' (Thursday) due to phonological rule
+                switch (this.day()) {
+                    case 2:
+                    case 4:
+                        return '[Leschten] dddd [um] LT';
+                    default:
+                        return '[Leschte] dddd [um] LT';
+                }
+            },
+        },
+        relativeTime: {
+            future: processFutureTime,
+            past: processPastTime,
+            s: 'e puer Sekonnen',
+            ss: '%d Sekonnen',
+            m: processRelativeTime$8,
+            mm: '%d Minutten',
+            h: processRelativeTime$8,
+            hh: '%d Stonnen',
+            d: processRelativeTime$8,
+            dd: '%d Deeg',
+            M: processRelativeTime$8,
+            MM: '%d Méint',
+            y: processRelativeTime$8,
+            yy: '%d Joer',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('lo', {
+        months: 'ມັງກອນ_ກຸມພາ_ມີນາ_ເມສາ_ພຶດສະພາ_ມິຖຸນາ_ກໍລະກົດ_ສິງຫາ_ກັນຍາ_ຕຸລາ_ພະຈິກ_ທັນວາ'.split(
+            '_'
+        ),
+        monthsShort:
+            'ມັງກອນ_ກຸມພາ_ມີນາ_ເມສາ_ພຶດສະພາ_ມິຖຸນາ_ກໍລະກົດ_ສິງຫາ_ກັນຍາ_ຕຸລາ_ພະຈິກ_ທັນວາ'.split(
+                '_'
+            ),
+        weekdays: 'ອາທິດ_ຈັນ_ອັງຄານ_ພຸດ_ພະຫັດ_ສຸກ_ເສົາ'.split('_'),
+        weekdaysShort: 'ທິດ_ຈັນ_ອັງຄານ_ພຸດ_ພະຫັດ_ສຸກ_ເສົາ'.split('_'),
+        weekdaysMin: 'ທ_ຈ_ອຄ_ພ_ພຫ_ສກ_ສ'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'ວັນdddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ຕອນເຊົ້າ|ຕອນແລງ/,
+        isPM: function (input) {
+            return input === 'ຕອນແລງ';
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ຕອນເຊົ້າ';
+            } else {
+                return 'ຕອນແລງ';
+            }
+        },
+        calendar: {
+            sameDay: '[ມື້ນີ້ເວລາ] LT',
+            nextDay: '[ມື້ອື່ນເວລາ] LT',
+            nextWeek: '[ວັນ]dddd[ໜ້າເວລາ] LT',
+            lastDay: '[ມື້ວານນີ້ເວລາ] LT',
+            lastWeek: '[ວັນ]dddd[ແລ້ວນີ້ເວລາ] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'ອີກ %s',
+            past: '%sຜ່ານມາ',
+            s: 'ບໍ່ເທົ່າໃດວິນາທີ',
+            ss: '%d ວິນາທີ',
+            m: '1 ນາທີ',
+            mm: '%d ນາທີ',
+            h: '1 ຊົ່ວໂມງ',
+            hh: '%d ຊົ່ວໂມງ',
+            d: '1 ມື້',
+            dd: '%d ມື້',
+            M: '1 ເດືອນ',
+            MM: '%d ເດືອນ',
+            y: '1 ປີ',
+            yy: '%d ປີ',
+        },
+        dayOfMonthOrdinalParse: /(ທີ່)\d{1,2}/,
+        ordinal: function (number) {
+            return 'ທີ່' + number;
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var units = {
+        ss: 'sekundė_sekundžių_sekundes',
+        m: 'minutė_minutės_minutę',
+        mm: 'minutės_minučių_minutes',
+        h: 'valanda_valandos_valandą',
+        hh: 'valandos_valandų_valandas',
+        d: 'diena_dienos_dieną',
+        dd: 'dienos_dienų_dienas',
+        M: 'mėnuo_mėnesio_mėnesį',
+        MM: 'mėnesiai_mėnesių_mėnesius',
+        y: 'metai_metų_metus',
+        yy: 'metai_metų_metus',
+    };
+    function translateSeconds(number, withoutSuffix, key, isFuture) {
+        if (withoutSuffix) {
+            return 'kelios sekundės';
+        } else {
+            return isFuture ? 'kelių sekundžių' : 'kelias sekundes';
+        }
+    }
+    function translateSingular(number, withoutSuffix, key, isFuture) {
+        return withoutSuffix
+            ? forms(key)[0]
+            : isFuture
+              ? forms(key)[1]
+              : forms(key)[2];
+    }
+    function special(number) {
+        return number % 10 === 0 || (number > 10 && number < 20);
+    }
+    function forms(key) {
+        return units[key].split('_');
+    }
+    function translate$6(number, withoutSuffix, key, isFuture) {
+        var result = number + ' ';
+        if (number === 1) {
+            return (
+                result + translateSingular(number, withoutSuffix, key[0], isFuture)
+            );
+        } else if (withoutSuffix) {
+            return result + (special(number) ? forms(key)[1] : forms(key)[0]);
+        } else {
+            if (isFuture) {
+                return result + forms(key)[1];
+            } else {
+                return result + (special(number) ? forms(key)[1] : forms(key)[2]);
+            }
+        }
+    }
+    hooks.defineLocale('lt', {
+        months: {
+            format: 'sausio_vasario_kovo_balandžio_gegužės_birželio_liepos_rugpjūčio_rugsėjo_spalio_lapkričio_gruodžio'.split(
+                '_'
+            ),
+            standalone:
+                'sausis_vasaris_kovas_balandis_gegužė_birželis_liepa_rugpjūtis_rugsėjis_spalis_lapkritis_gruodis'.split(
+                    '_'
+                ),
+            isFormat: /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?|MMMM?(\[[^\[\]]*\]|\s)+D[oD]?/,
+        },
+        monthsShort: 'sau_vas_kov_bal_geg_bir_lie_rgp_rgs_spa_lap_grd'.split('_'),
+        weekdays: {
+            format: 'sekmadienį_pirmadienį_antradienį_trečiadienį_ketvirtadienį_penktadienį_šeštadienį'.split(
+                '_'
+            ),
+            standalone:
+                'sekmadienis_pirmadienis_antradienis_trečiadienis_ketvirtadienis_penktadienis_šeštadienis'.split(
+                    '_'
+                ),
+            isFormat: /dddd HH:mm/,
+        },
+        weekdaysShort: 'Sek_Pir_Ant_Tre_Ket_Pen_Šeš'.split('_'),
+        weekdaysMin: 'S_P_A_T_K_Pn_Š'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY-MM-DD',
+            LL: 'YYYY [m.] MMMM D [d.]',
+            LLL: 'YYYY [m.] MMMM D [d.], HH:mm [val.]',
+            LLLL: 'YYYY [m.] MMMM D [d.], dddd, HH:mm [val.]',
+            l: 'YYYY-MM-DD',
+            ll: 'YYYY [m.] MMMM D [d.]',
+            lll: 'YYYY [m.] MMMM D [d.], HH:mm [val.]',
+            llll: 'YYYY [m.] MMMM D [d.], ddd, HH:mm [val.]',
+        },
+        calendar: {
+            sameDay: '[Šiandien] LT',
+            nextDay: '[Rytoj] LT',
+            nextWeek: 'dddd LT',
+            lastDay: '[Vakar] LT',
+            lastWeek: '[Praėjusį] dddd LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'po %s',
+            past: 'prieš %s',
+            s: translateSeconds,
+            ss: translate$6,
+            m: translateSingular,
+            mm: translate$6,
+            h: translateSingular,
+            hh: translate$6,
+            d: translateSingular,
+            dd: translate$6,
+            M: translateSingular,
+            MM: translate$6,
+            y: translateSingular,
+            yy: translate$6,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-oji/,
+        ordinal: function (number) {
+            return number + '-oji';
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var units$1 = {
+        ss: 'sekundes_sekundēm_sekunde_sekundes'.split('_'),
+        m: 'minūtes_minūtēm_minūte_minūtes'.split('_'),
+        mm: 'minūtes_minūtēm_minūte_minūtes'.split('_'),
+        h: 'stundas_stundām_stunda_stundas'.split('_'),
+        hh: 'stundas_stundām_stunda_stundas'.split('_'),
+        d: 'dienas_dienām_diena_dienas'.split('_'),
+        dd: 'dienas_dienām_diena_dienas'.split('_'),
+        M: 'mēneša_mēnešiem_mēnesis_mēneši'.split('_'),
+        MM: 'mēneša_mēnešiem_mēnesis_mēneši'.split('_'),
+        y: 'gada_gadiem_gads_gadi'.split('_'),
+        yy: 'gada_gadiem_gads_gadi'.split('_'),
+    };
+    /**
+     * @param withoutSuffix boolean true = a length of time; false = before/after a period of time.
+     */
+    function format$1(forms, number, withoutSuffix) {
+        if (withoutSuffix) {
+            // E.g. "21 minūte", "3 minūtes".
+            return number % 10 === 1 && number % 100 !== 11 ? forms[2] : forms[3];
+        } else {
+            // E.g. "21 minūtes" as in "pēc 21 minūtes".
+            // E.g. "3 minūtēm" as in "pēc 3 minūtēm".
+            return number % 10 === 1 && number % 100 !== 11 ? forms[0] : forms[1];
+        }
+    }
+    function relativeTimeWithPlural$1(number, withoutSuffix, key) {
+        return number + ' ' + format$1(units$1[key], number, withoutSuffix);
+    }
+    function relativeTimeWithSingular(number, withoutSuffix, key) {
+        return format$1(units$1[key], number, withoutSuffix);
+    }
+    function relativeSeconds(number, withoutSuffix) {
+        return withoutSuffix ? 'dažas sekundes' : 'dažām sekundēm';
+    }
+
+    hooks.defineLocale('lv', {
+        months: 'janvāris_februāris_marts_aprīlis_maijs_jūnijs_jūlijs_augusts_septembris_oktobris_novembris_decembris'.split(
+            '_'
+        ),
+        monthsShort: 'jan_feb_mar_apr_mai_jūn_jūl_aug_sep_okt_nov_dec'.split('_'),
+        weekdays:
+            'svētdiena_pirmdiena_otrdiena_trešdiena_ceturtdiena_piektdiena_sestdiena'.split(
+                '_'
+            ),
+        weekdaysShort: 'Sv_P_O_T_C_Pk_S'.split('_'),
+        weekdaysMin: 'Sv_P_O_T_C_Pk_S'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY.',
+            LL: 'YYYY. [gada] D. MMMM',
+            LLL: 'YYYY. [gada] D. MMMM, HH:mm',
+            LLLL: 'YYYY. [gada] D. MMMM, dddd, HH:mm',
+        },
+        calendar: {
+            sameDay: '[Šodien pulksten] LT',
+            nextDay: '[Rīt pulksten] LT',
+            nextWeek: 'dddd [pulksten] LT',
+            lastDay: '[Vakar pulksten] LT',
+            lastWeek: '[Pagājušā] dddd [pulksten] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'pēc %s',
+            past: 'pirms %s',
+            s: relativeSeconds,
+            ss: relativeTimeWithPlural$1,
+            m: relativeTimeWithSingular,
+            mm: relativeTimeWithPlural$1,
+            h: relativeTimeWithSingular,
+            hh: relativeTimeWithPlural$1,
+            d: relativeTimeWithSingular,
+            dd: relativeTimeWithPlural$1,
+            M: relativeTimeWithSingular,
+            MM: relativeTimeWithPlural$1,
+            y: relativeTimeWithSingular,
+            yy: relativeTimeWithPlural$1,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var translator = {
+        words: {
+            //Different grammatical cases
+            ss: ['sekund', 'sekunda', 'sekundi'],
+            m: ['jedan minut', 'jednog minuta'],
+            mm: ['minut', 'minuta', 'minuta'],
+            h: ['jedan sat', 'jednog sata'],
+            hh: ['sat', 'sata', 'sati'],
+            dd: ['dan', 'dana', 'dana'],
+            MM: ['mjesec', 'mjeseca', 'mjeseci'],
+            yy: ['godina', 'godine', 'godina'],
+        },
+        correctGrammaticalCase: function (number, wordKey) {
+            return number === 1
+                ? wordKey[0]
+                : number >= 2 && number <= 4
+                  ? wordKey[1]
+                  : wordKey[2];
+        },
+        translate: function (number, withoutSuffix, key) {
+            var wordKey = translator.words[key];
+            if (key.length === 1) {
+                return withoutSuffix ? wordKey[0] : wordKey[1];
+            } else {
+                return (
+                    number +
+                    ' ' +
+                    translator.correctGrammaticalCase(number, wordKey)
+                );
+            }
+        },
+    };
+
+    hooks.defineLocale('me', {
+        months: 'januar_februar_mart_april_maj_jun_jul_avgust_septembar_oktobar_novembar_decembar'.split(
+            '_'
+        ),
+        monthsShort:
+            'jan._feb._mar._apr._maj_jun_jul_avg._sep._okt._nov._dec.'.split('_'),
+        monthsParseExact: true,
+        weekdays: 'nedjelja_ponedjeljak_utorak_srijeda_četvrtak_petak_subota'.split(
+            '_'
+        ),
+        weekdaysShort: 'ned._pon._uto._sri._čet._pet._sub.'.split('_'),
+        weekdaysMin: 'ne_po_ut_sr_če_pe_su'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY H:mm',
+            LLLL: 'dddd, D. MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[danas u] LT',
+            nextDay: '[sjutra u] LT',
+
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[u] [nedjelju] [u] LT';
+                    case 3:
+                        return '[u] [srijedu] [u] LT';
+                    case 6:
+                        return '[u] [subotu] [u] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[u] dddd [u] LT';
+                }
+            },
+            lastDay: '[juče u] LT',
+            lastWeek: function () {
+                var lastWeekDays = [
+                    '[prošle] [nedjelje] [u] LT',
+                    '[prošlog] [ponedjeljka] [u] LT',
+                    '[prošlog] [utorka] [u] LT',
+                    '[prošle] [srijede] [u] LT',
+                    '[prošlog] [četvrtka] [u] LT',
+                    '[prošlog] [petka] [u] LT',
+                    '[prošle] [subote] [u] LT',
+                ];
+                return lastWeekDays[this.day()];
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'za %s',
+            past: 'prije %s',
+            s: 'nekoliko sekundi',
+            ss: translator.translate,
+            m: translator.translate,
+            mm: translator.translate,
+            h: translator.translate,
+            hh: translator.translate,
+            d: 'dan',
+            dd: translator.translate,
+            M: 'mjesec',
+            MM: translator.translate,
+            y: 'godinu',
+            yy: translator.translate,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('mi', {
+        months: 'Kohi-tāte_Hui-tanguru_Poutū-te-rangi_Paenga-whāwhā_Haratua_Pipiri_Hōngoingoi_Here-turi-kōkā_Mahuru_Whiringa-ā-nuku_Whiringa-ā-rangi_Hakihea'.split(
+            '_'
+        ),
+        monthsShort:
+            'Kohi_Hui_Pou_Pae_Hara_Pipi_Hōngoi_Here_Mahu_Whi-nu_Whi-ra_Haki'.split(
+                '_'
+            ),
+        monthsRegex: /(?:['a-z\u0101\u014D\u016B]+\-?){1,3}/i,
+        monthsStrictRegex: /(?:['a-z\u0101\u014D\u016B]+\-?){1,3}/i,
+        monthsShortRegex: /(?:['a-z\u0101\u014D\u016B]+\-?){1,3}/i,
+        monthsShortStrictRegex: /(?:['a-z\u0101\u014D\u016B]+\-?){1,2}/i,
+        weekdays: 'Rātapu_Mane_Tūrei_Wenerei_Tāite_Paraire_Hātarei'.split('_'),
+        weekdaysShort: 'Ta_Ma_Tū_We_Tāi_Pa_Hā'.split('_'),
+        weekdaysMin: 'Ta_Ma_Tū_We_Tāi_Pa_Hā'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY [i] HH:mm',
+            LLLL: 'dddd, D MMMM YYYY [i] HH:mm',
+        },
+        calendar: {
+            sameDay: '[i teie mahana, i] LT',
+            nextDay: '[apopo i] LT',
+            nextWeek: 'dddd [i] LT',
+            lastDay: '[inanahi i] LT',
+            lastWeek: 'dddd [whakamutunga i] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'i roto i %s',
+            past: '%s i mua',
+            s: 'te hēkona ruarua',
+            ss: '%d hēkona',
+            m: 'he meneti',
+            mm: '%d meneti',
+            h: 'te haora',
+            hh: '%d haora',
+            d: 'he ra',
+            dd: '%d ra',
+            M: 'he marama',
+            MM: '%d marama',
+            y: 'he tau',
+            yy: '%d tau',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('mk', {
+        months: 'јануари_февруари_март_април_мај_јуни_јули_август_септември_октомври_ноември_декември'.split(
+            '_'
+        ),
+        monthsShort: 'јан_фев_мар_апр_мај_јун_јул_авг_сеп_окт_ное_дек'.split('_'),
+        weekdays: 'недела_понеделник_вторник_среда_четврток_петок_сабота'.split(
+            '_'
+        ),
+        weekdaysShort: 'нед_пон_вто_сре_чет_пет_саб'.split('_'),
+        weekdaysMin: 'нe_пo_вт_ср_че_пе_сa'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'D.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY H:mm',
+            LLLL: 'dddd, D MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[Денес во] LT',
+            nextDay: '[Утре во] LT',
+            nextWeek: '[Во] dddd [во] LT',
+            lastDay: '[Вчера во] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                    case 3:
+                    case 6:
+                        return '[Изминатата] dddd [во] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[Изминатиот] dddd [во] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'за %s',
+            past: 'пред %s',
+            s: 'неколку секунди',
+            ss: '%d секунди',
+            m: 'една минута',
+            mm: '%d минути',
+            h: 'еден час',
+            hh: '%d часа',
+            d: 'еден ден',
+            dd: '%d дена',
+            M: 'еден месец',
+            MM: '%d месеци',
+            y: 'една година',
+            yy: '%d години',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(ев|ен|ти|ви|ри|ми)/,
+        ordinal: function (number) {
+            var lastDigit = number % 10,
+                last2Digits = number % 100;
+            if (number === 0) {
+                return number + '-ев';
+            } else if (last2Digits === 0) {
+                return number + '-ен';
+            } else if (last2Digits > 10 && last2Digits < 20) {
+                return number + '-ти';
+            } else if (lastDigit === 1) {
+                return number + '-ви';
+            } else if (lastDigit === 2) {
+                return number + '-ри';
+            } else if (lastDigit === 7 || lastDigit === 8) {
+                return number + '-ми';
+            } else {
+                return number + '-ти';
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('ml', {
+        months: 'ജനുവരി_ഫെബ്രുവരി_മാർച്ച്_ഏപ്രിൽ_മേയ്_ജൂൺ_ജൂലൈ_ഓഗസ്റ്റ്_സെപ്റ്റംബർ_ഒക്ടോബർ_നവംബർ_ഡിസംബർ'.split(
+            '_'
+        ),
+        monthsShort:
+            'ജനു._ഫെബ്രു._മാർ._ഏപ്രി._മേയ്_ജൂൺ_ജൂലൈ._ഓഗ._സെപ്റ്റ._ഒക്ടോ._നവം._ഡിസം.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays:
+            'ഞായറാഴ്ച_തിങ്കളാഴ്ച_ചൊവ്വാഴ്ച_ബുധനാഴ്ച_വ്യാഴാഴ്ച_വെള്ളിയാഴ്ച_ശനിയാഴ്ച'.split(
+                '_'
+            ),
+        weekdaysShort: 'ഞായർ_തിങ്കൾ_ചൊവ്വ_ബുധൻ_വ്യാഴം_വെള്ളി_ശനി'.split('_'),
+        weekdaysMin: 'ഞാ_തി_ചൊ_ബു_വ്യാ_വെ_ശ'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm -നു',
+            LTS: 'A h:mm:ss -നു',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm -നു',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm -നു',
+        },
+        calendar: {
+            sameDay: '[ഇന്ന്] LT',
+            nextDay: '[നാളെ] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[ഇന്നലെ] LT',
+            lastWeek: '[കഴിഞ്ഞ] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s കഴിഞ്ഞ്',
+            past: '%s മുൻപ്',
+            s: 'അൽപ നിമിഷങ്ങൾ',
+            ss: '%d സെക്കൻഡ്',
+            m: 'ഒരു മിനിറ്റ്',
+            mm: '%d മിനിറ്റ്',
+            h: 'ഒരു മണിക്കൂർ',
+            hh: '%d മണിക്കൂർ',
+            d: 'ഒരു ദിവസം',
+            dd: '%d ദിവസം',
+            M: 'ഒരു മാസം',
+            MM: '%d മാസം',
+            y: 'ഒരു വർഷം',
+            yy: '%d വർഷം',
+        },
+        meridiemParse: /രാത്രി|രാവിലെ|ഉച്ച കഴിഞ്ഞ്|വൈകുന്നേരം|രാത്രി/i,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (
+                (meridiem === 'രാത്രി' && hour >= 4) ||
+                meridiem === 'ഉച്ച കഴിഞ്ഞ്' ||
+                meridiem === 'വൈകുന്നേരം'
+            ) {
+                return hour + 12;
+            } else {
+                return hour;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'രാത്രി';
+            } else if (hour < 12) {
+                return 'രാവിലെ';
+            } else if (hour < 17) {
+                return 'ഉച്ച കഴിഞ്ഞ്';
+            } else if (hour < 20) {
+                return 'വൈകുന്നേരം';
+            } else {
+                return 'രാത്രി';
+            }
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function translate$7(number, withoutSuffix, key, isFuture) {
+        switch (key) {
+            case 's':
+                return withoutSuffix ? 'хэдхэн секунд' : 'хэдхэн секундын';
+            case 'ss':
+                return number + (withoutSuffix ? ' секунд' : ' секундын');
+            case 'm':
+            case 'mm':
+                return number + (withoutSuffix ? ' минут' : ' минутын');
+            case 'h':
+            case 'hh':
+                return number + (withoutSuffix ? ' цаг' : ' цагийн');
+            case 'd':
+            case 'dd':
+                return number + (withoutSuffix ? ' өдөр' : ' өдрийн');
+            case 'M':
+            case 'MM':
+                return number + (withoutSuffix ? ' сар' : ' сарын');
+            case 'y':
+            case 'yy':
+                return number + (withoutSuffix ? ' жил' : ' жилийн');
+            default:
+                return number;
+        }
+    }
+
+    hooks.defineLocale('mn', {
+        months: 'Нэгдүгээр сар_Хоёрдугаар сар_Гуравдугаар сар_Дөрөвдүгээр сар_Тавдугаар сар_Зургадугаар сар_Долдугаар сар_Наймдугаар сар_Есдүгээр сар_Аравдугаар сар_Арван нэгдүгээр сар_Арван хоёрдугаар сар'.split(
+            '_'
+        ),
+        monthsShort:
+            '1 сар_2 сар_3 сар_4 сар_5 сар_6 сар_7 сар_8 сар_9 сар_10 сар_11 сар_12 сар'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'Ням_Даваа_Мягмар_Лхагва_Пүрэв_Баасан_Бямба'.split('_'),
+        weekdaysShort: 'Ням_Дав_Мяг_Лха_Пүр_Баа_Бям'.split('_'),
+        weekdaysMin: 'Ня_Да_Мя_Лх_Пү_Ба_Бя'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY-MM-DD',
+            LL: 'YYYY оны MMMMын D',
+            LLL: 'YYYY оны MMMMын D HH:mm',
+            LLLL: 'dddd, YYYY оны MMMMын D HH:mm',
+        },
+        meridiemParse: /ҮӨ|ҮХ/i,
+        isPM: function (input) {
+            return input === 'ҮХ';
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ҮӨ';
+            } else {
+                return 'ҮХ';
+            }
+        },
+        calendar: {
+            sameDay: '[Өнөөдөр] LT',
+            nextDay: '[Маргааш] LT',
+            nextWeek: '[Ирэх] dddd LT',
+            lastDay: '[Өчигдөр] LT',
+            lastWeek: '[Өнгөрсөн] dddd LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s дараа',
+            past: '%s өмнө',
+            s: translate$7,
+            ss: translate$7,
+            m: translate$7,
+            mm: translate$7,
+            h: translate$7,
+            hh: translate$7,
+            d: translate$7,
+            dd: translate$7,
+            M: translate$7,
+            MM: translate$7,
+            y: translate$7,
+            yy: translate$7,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2} өдөр/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'DDD':
+                    return number + ' өдөр';
+                default:
+                    return number;
+            }
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$d = {
+            1: '१',
+            2: '२',
+            3: '३',
+            4: '४',
+            5: '५',
+            6: '६',
+            7: '७',
+            8: '८',
+            9: '९',
+            0: '०',
+        },
+        numberMap$c = {
+            '१': '1',
+            '२': '2',
+            '३': '3',
+            '४': '4',
+            '५': '5',
+            '६': '6',
+            '७': '7',
+            '८': '8',
+            '९': '9',
+            '०': '0',
+        };
+
+    function relativeTimeMr(number, withoutSuffix, string, isFuture) {
+        var output = '';
+        if (withoutSuffix) {
+            switch (string) {
+                case 's':
+                    output = 'काही सेकंद';
+                    break;
+                case 'ss':
+                    output = '%d सेकंद';
+                    break;
+                case 'm':
+                    output = 'एक मिनिट';
+                    break;
+                case 'mm':
+                    output = '%d मिनिटे';
+                    break;
+                case 'h':
+                    output = 'एक तास';
+                    break;
+                case 'hh':
+                    output = '%d तास';
+                    break;
+                case 'd':
+                    output = 'एक दिवस';
+                    break;
+                case 'dd':
+                    output = '%d दिवस';
+                    break;
+                case 'M':
+                    output = 'एक महिना';
+                    break;
+                case 'MM':
+                    output = '%d महिने';
+                    break;
+                case 'y':
+                    output = 'एक वर्ष';
+                    break;
+                case 'yy':
+                    output = '%d वर्षे';
+                    break;
+            }
+        } else {
+            switch (string) {
+                case 's':
+                    output = 'काही सेकंदां';
+                    break;
+                case 'ss':
+                    output = '%d सेकंदां';
+                    break;
+                case 'm':
+                    output = 'एका मिनिटा';
+                    break;
+                case 'mm':
+                    output = '%d मिनिटां';
+                    break;
+                case 'h':
+                    output = 'एका तासा';
+                    break;
+                case 'hh':
+                    output = '%d तासां';
+                    break;
+                case 'd':
+                    output = 'एका दिवसा';
+                    break;
+                case 'dd':
+                    output = '%d दिवसां';
+                    break;
+                case 'M':
+                    output = 'एका महिन्या';
+                    break;
+                case 'MM':
+                    output = '%d महिन्यां';
+                    break;
+                case 'y':
+                    output = 'एका वर्षा';
+                    break;
+                case 'yy':
+                    output = '%d वर्षां';
+                    break;
+            }
+        }
+        return output.replace(/%d/i, number);
+    }
+
+    hooks.defineLocale('mr', {
+        months: 'जानेवारी_फेब्रुवारी_मार्च_एप्रिल_मे_जून_जुलै_ऑगस्ट_सप्टेंबर_ऑक्टोबर_नोव्हेंबर_डिसेंबर'.split(
+            '_'
+        ),
+        monthsShort:
+            'जाने._फेब्रु._मार्च._एप्रि._मे._जून._जुलै._ऑग._सप्टें._ऑक्टो._नोव्हें._डिसें.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'रविवार_सोमवार_मंगळवार_बुधवार_गुरूवार_शुक्रवार_शनिवार'.split('_'),
+        weekdaysShort: 'रवि_सोम_मंगळ_बुध_गुरू_शुक्र_शनि'.split('_'),
+        weekdaysMin: 'र_सो_मं_बु_गु_शु_श'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm वाजता',
+            LTS: 'A h:mm:ss वाजता',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm वाजता',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm वाजता',
+        },
+        calendar: {
+            sameDay: '[आज] LT',
+            nextDay: '[उद्या] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[काल] LT',
+            lastWeek: '[मागील] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%sमध्ये',
+            past: '%sपूर्वी',
+            s: relativeTimeMr,
+            ss: relativeTimeMr,
+            m: relativeTimeMr,
+            mm: relativeTimeMr,
+            h: relativeTimeMr,
+            hh: relativeTimeMr,
+            d: relativeTimeMr,
+            dd: relativeTimeMr,
+            M: relativeTimeMr,
+            MM: relativeTimeMr,
+            y: relativeTimeMr,
+            yy: relativeTimeMr,
+        },
+        preparse: function (string) {
+            return string.replace(/[१२३४५६७८९०]/g, function (match) {
+                return numberMap$c[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap$d[match];
+            });
+        },
+        meridiemParse: /पहाटे|सकाळी|दुपारी|सायंकाळी|रात्री/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'पहाटे' || meridiem === 'सकाळी') {
+                return hour;
+            } else if (
+                meridiem === 'दुपारी' ||
+                meridiem === 'सायंकाळी' ||
+                meridiem === 'रात्री'
+            ) {
+                return hour >= 12 ? hour : hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour >= 0 && hour < 6) {
+                return 'पहाटे';
+            } else if (hour < 12) {
+                return 'सकाळी';
+            } else if (hour < 17) {
+                return 'दुपारी';
+            } else if (hour < 20) {
+                return 'सायंकाळी';
+            } else {
+                return 'रात्री';
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('ms-my', {
+        months: 'Januari_Februari_Mac_April_Mei_Jun_Julai_Ogos_September_Oktober_November_Disember'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mac_Apr_Mei_Jun_Jul_Ogs_Sep_Okt_Nov_Dis'.split('_'),
+        weekdays: 'Ahad_Isnin_Selasa_Rabu_Khamis_Jumaat_Sabtu'.split('_'),
+        weekdaysShort: 'Ahd_Isn_Sel_Rab_Kha_Jum_Sab'.split('_'),
+        weekdaysMin: 'Ah_Is_Sl_Rb_Km_Jm_Sb'.split('_'),
+        longDateFormat: {
+            LT: 'HH.mm',
+            LTS: 'HH.mm.ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY [pukul] HH.mm',
+            LLLL: 'dddd, D MMMM YYYY [pukul] HH.mm',
+        },
+        meridiemParse: /pagi|tengahari|petang|malam/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'pagi') {
+                return hour;
+            } else if (meridiem === 'tengahari') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === 'petang' || meridiem === 'malam') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 11) {
+                return 'pagi';
+            } else if (hours < 15) {
+                return 'tengahari';
+            } else if (hours < 19) {
+                return 'petang';
+            } else {
+                return 'malam';
+            }
+        },
+        calendar: {
+            sameDay: '[Hari ini pukul] LT',
+            nextDay: '[Esok pukul] LT',
+            nextWeek: 'dddd [pukul] LT',
+            lastDay: '[Kelmarin pukul] LT',
+            lastWeek: 'dddd [lepas pukul] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'dalam %s',
+            past: '%s yang lepas',
+            s: 'beberapa saat',
+            ss: '%d saat',
+            m: 'seminit',
+            mm: '%d minit',
+            h: 'sejam',
+            hh: '%d jam',
+            d: 'sehari',
+            dd: '%d hari',
+            M: 'sebulan',
+            MM: '%d bulan',
+            y: 'setahun',
+            yy: '%d tahun',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('ms', {
+        months: 'Januari_Februari_Mac_April_Mei_Jun_Julai_Ogos_September_Oktober_November_Disember'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mac_Apr_Mei_Jun_Jul_Ogs_Sep_Okt_Nov_Dis'.split('_'),
+        weekdays: 'Ahad_Isnin_Selasa_Rabu_Khamis_Jumaat_Sabtu'.split('_'),
+        weekdaysShort: 'Ahd_Isn_Sel_Rab_Kha_Jum_Sab'.split('_'),
+        weekdaysMin: 'Ah_Is_Sl_Rb_Km_Jm_Sb'.split('_'),
+        longDateFormat: {
+            LT: 'HH.mm',
+            LTS: 'HH.mm.ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY [pukul] HH.mm',
+            LLLL: 'dddd, D MMMM YYYY [pukul] HH.mm',
+        },
+        meridiemParse: /pagi|tengahari|petang|malam/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'pagi') {
+                return hour;
+            } else if (meridiem === 'tengahari') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === 'petang' || meridiem === 'malam') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 11) {
+                return 'pagi';
+            } else if (hours < 15) {
+                return 'tengahari';
+            } else if (hours < 19) {
+                return 'petang';
+            } else {
+                return 'malam';
+            }
+        },
+        calendar: {
+            sameDay: '[Hari ini pukul] LT',
+            nextDay: '[Esok pukul] LT',
+            nextWeek: 'dddd [pukul] LT',
+            lastDay: '[Kelmarin pukul] LT',
+            lastWeek: 'dddd [lepas pukul] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'dalam %s',
+            past: '%s yang lepas',
+            s: 'beberapa saat',
+            ss: '%d saat',
+            m: 'seminit',
+            mm: '%d minit',
+            h: 'sejam',
+            hh: '%d jam',
+            d: 'sehari',
+            dd: '%d hari',
+            M: 'sebulan',
+            MM: '%d bulan',
+            y: 'setahun',
+            yy: '%d tahun',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('mt', {
+        months: 'Jannar_Frar_Marzu_April_Mejju_Ġunju_Lulju_Awwissu_Settembru_Ottubru_Novembru_Diċembru'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Fra_Mar_Apr_Mej_Ġun_Lul_Aww_Set_Ott_Nov_Diċ'.split('_'),
+        weekdays:
+            'Il-Ħadd_It-Tnejn_It-Tlieta_L-Erbgħa_Il-Ħamis_Il-Ġimgħa_Is-Sibt'.split(
+                '_'
+            ),
+        weekdaysShort: 'Ħad_Tne_Tli_Erb_Ħam_Ġim_Sib'.split('_'),
+        weekdaysMin: 'Ħa_Tn_Tl_Er_Ħa_Ġi_Si'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Illum fil-]LT',
+            nextDay: '[Għada fil-]LT',
+            nextWeek: 'dddd [fil-]LT',
+            lastDay: '[Il-bieraħ fil-]LT',
+            lastWeek: 'dddd [li għadda] [fil-]LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'f’ %s',
+            past: '%s ilu',
+            s: 'ftit sekondi',
+            ss: '%d sekondi',
+            m: 'minuta',
+            mm: '%d minuti',
+            h: 'siegħa',
+            hh: '%d siegħat',
+            d: 'ġurnata',
+            dd: '%d ġranet',
+            M: 'xahar',
+            MM: '%d xhur',
+            y: 'sena',
+            yy: '%d sni',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$e = {
+            1: '၁',
+            2: '၂',
+            3: '၃',
+            4: '၄',
+            5: '၅',
+            6: '၆',
+            7: '၇',
+            8: '၈',
+            9: '၉',
+            0: '၀',
+        },
+        numberMap$d = {
+            '၁': '1',
+            '၂': '2',
+            '၃': '3',
+            '၄': '4',
+            '၅': '5',
+            '၆': '6',
+            '၇': '7',
+            '၈': '8',
+            '၉': '9',
+            '၀': '0',
+        };
+
+    hooks.defineLocale('my', {
+        months: 'ဇန်နဝါရီ_ဖေဖော်ဝါရီ_မတ်_ဧပြီ_မေ_ဇွန်_ဇူလိုင်_သြဂုတ်_စက်တင်ဘာ_အောက်တိုဘာ_နိုဝင်ဘာ_ဒီဇင်ဘာ'.split(
+            '_'
+        ),
+        monthsShort: 'ဇန်_ဖေ_မတ်_ပြီ_မေ_ဇွန်_လိုင်_သြ_စက်_အောက်_နို_ဒီ'.split('_'),
+        weekdays: 'တနင်္ဂနွေ_တနင်္လာ_အင်္ဂါ_ဗုဒ္ဓဟူး_ကြာသပတေး_သောကြာ_စနေ'.split(
+            '_'
+        ),
+        weekdaysShort: 'နွေ_လာ_ဂါ_ဟူး_ကြာ_သော_နေ'.split('_'),
+        weekdaysMin: 'နွေ_လာ_ဂါ_ဟူး_ကြာ_သော_နေ'.split('_'),
+
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[ယနေ.] LT [မှာ]',
+            nextDay: '[မနက်ဖြန်] LT [မှာ]',
+            nextWeek: 'dddd LT [မှာ]',
+            lastDay: '[မနေ.က] LT [မှာ]',
+            lastWeek: '[ပြီးခဲ့သော] dddd LT [မှာ]',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'လာမည့် %s မှာ',
+            past: 'လွန်ခဲ့သော %s က',
+            s: 'စက္ကန်.အနည်းငယ်',
+            ss: '%d စက္ကန့်',
+            m: 'တစ်မိနစ်',
+            mm: '%d မိနစ်',
+            h: 'တစ်နာရီ',
+            hh: '%d နာရီ',
+            d: 'တစ်ရက်',
+            dd: '%d ရက်',
+            M: 'တစ်လ',
+            MM: '%d လ',
+            y: 'တစ်နှစ်',
+            yy: '%d နှစ်',
+        },
+        preparse: function (string) {
+            return string.replace(/[၁၂၃၄၅၆၇၈၉၀]/g, function (match) {
+                return numberMap$d[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap$e[match];
+            });
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('nb', {
+        months: 'januar_februar_mars_april_mai_juni_juli_august_september_oktober_november_desember'.split(
+            '_'
+        ),
+        monthsShort:
+            'jan._feb._mars_apr._mai_juni_juli_aug._sep._okt._nov._des.'.split('_'),
+        monthsParseExact: true,
+        weekdays: 'søndag_mandag_tirsdag_onsdag_torsdag_fredag_lørdag'.split('_'),
+        weekdaysShort: 'sø._ma._ti._on._to._fr._lø.'.split('_'),
+        weekdaysMin: 'sø_ma_ti_on_to_fr_lø'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY [kl.] HH:mm',
+            LLLL: 'dddd D. MMMM YYYY [kl.] HH:mm',
+        },
+        calendar: {
+            sameDay: '[i dag kl.] LT',
+            nextDay: '[i morgen kl.] LT',
+            nextWeek: 'dddd [kl.] LT',
+            lastDay: '[i går kl.] LT',
+            lastWeek: '[forrige] dddd [kl.] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'om %s',
+            past: '%s siden',
+            s: 'noen sekunder',
+            ss: '%d sekunder',
+            m: 'ett minutt',
+            mm: '%d minutter',
+            h: 'én time',
+            hh: '%d timer',
+            d: 'én dag',
+            dd: '%d dager',
+            w: 'én uke',
+            ww: '%d uker',
+            M: 'én måned',
+            MM: '%d måneder',
+            y: 'ett år',
+            yy: '%d år',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$f = {
+            1: '१',
+            2: '२',
+            3: '३',
+            4: '४',
+            5: '५',
+            6: '६',
+            7: '७',
+            8: '८',
+            9: '९',
+            0: '०',
+        },
+        numberMap$e = {
+            '१': '1',
+            '२': '2',
+            '३': '3',
+            '४': '4',
+            '५': '5',
+            '६': '6',
+            '७': '7',
+            '८': '8',
+            '९': '9',
+            '०': '0',
+        };
+
+    hooks.defineLocale('ne', {
+        months: 'जनवरी_फेब्रुवरी_मार्च_अप्रिल_मई_जुन_जुलाई_अगष्ट_सेप्टेम्बर_अक्टोबर_नोभेम्बर_डिसेम्बर'.split(
+            '_'
+        ),
+        monthsShort:
+            'जन._फेब्रु._मार्च_अप्रि._मई_जुन_जुलाई._अग._सेप्ट._अक्टो._नोभे._डिसे.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'आइतबार_सोमबार_मङ्गलबार_बुधबार_बिहिबार_शुक्रबार_शनिबार'.split(
+            '_'
+        ),
+        weekdaysShort: 'आइत._सोम._मङ्गल._बुध._बिहि._शुक्र._शनि.'.split('_'),
+        weekdaysMin: 'आ._सो._मं._बु._बि._शु._श.'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'Aको h:mm बजे',
+            LTS: 'Aको h:mm:ss बजे',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, Aको h:mm बजे',
+            LLLL: 'dddd, D MMMM YYYY, Aको h:mm बजे',
+        },
+        preparse: function (string) {
+            return string.replace(/[१२३४५६७८९०]/g, function (match) {
+                return numberMap$e[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap$f[match];
+            });
+        },
+        meridiemParse: /राति|बिहान|दिउँसो|साँझ/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'राति') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'बिहान') {
+                return hour;
+            } else if (meridiem === 'दिउँसो') {
+                return hour >= 10 ? hour : hour + 12;
+            } else if (meridiem === 'साँझ') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 3) {
+                return 'राति';
+            } else if (hour < 12) {
+                return 'बिहान';
+            } else if (hour < 16) {
+                return 'दिउँसो';
+            } else if (hour < 20) {
+                return 'साँझ';
+            } else {
+                return 'राति';
+            }
+        },
+        calendar: {
+            sameDay: '[आज] LT',
+            nextDay: '[भोलि] LT',
+            nextWeek: '[आउँदो] dddd[,] LT',
+            lastDay: '[हिजो] LT',
+            lastWeek: '[गएको] dddd[,] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%sमा',
+            past: '%s अगाडि',
+            s: 'केही क्षण',
+            ss: '%d सेकेण्ड',
+            m: 'एक मिनेट',
+            mm: '%d मिनेट',
+            h: 'एक घण्टा',
+            hh: '%d घण्टा',
+            d: 'एक दिन',
+            dd: '%d दिन',
+            M: 'एक महिना',
+            MM: '%d महिना',
+            y: 'एक बर्ष',
+            yy: '%d बर्ष',
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var monthsShortWithDots$1 =
+            'jan._feb._mrt._apr._mei_jun._jul._aug._sep._okt._nov._dec.'.split('_'),
+        monthsShortWithoutDots$1 =
+            'jan_feb_mrt_apr_mei_jun_jul_aug_sep_okt_nov_dec'.split('_'),
+        monthsParse$8 = [
+            /^jan/i,
+            /^feb/i,
+            /^(maart|mrt\.?)$/i,
+            /^apr/i,
+            /^mei$/i,
+            /^jun[i.]?$/i,
+            /^jul[i.]?$/i,
+            /^aug/i,
+            /^sep/i,
+            /^okt/i,
+            /^nov/i,
+            /^dec/i,
+        ],
+        monthsRegex$8 =
+            /^(januari|februari|maart|april|mei|ju[nl]i|augustus|september|oktober|november|december|jan\.?|feb\.?|mrt\.?|apr\.?|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i;
+
+    hooks.defineLocale('nl-be', {
+        months: 'januari_februari_maart_april_mei_juni_juli_augustus_september_oktober_november_december'.split(
+            '_'
+        ),
+        monthsShort: function (m, format) {
+            if (!m) {
+                return monthsShortWithDots$1;
+            } else if (/-MMM-/.test(format)) {
+                return monthsShortWithoutDots$1[m.month()];
+            } else {
+                return monthsShortWithDots$1[m.month()];
+            }
+        },
+
+        monthsRegex: monthsRegex$8,
+        monthsShortRegex: monthsRegex$8,
+        monthsStrictRegex:
+            /^(januari|februari|maart|april|mei|ju[nl]i|augustus|september|oktober|november|december)/i,
+        monthsShortStrictRegex:
+            /^(jan\.?|feb\.?|mrt\.?|apr\.?|mei|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i,
+
+        monthsParse: monthsParse$8,
+        longMonthsParse: monthsParse$8,
+        shortMonthsParse: monthsParse$8,
+
+        weekdays:
+            'zondag_maandag_dinsdag_woensdag_donderdag_vrijdag_zaterdag'.split('_'),
+        weekdaysShort: 'zo._ma._di._wo._do._vr._za.'.split('_'),
+        weekdaysMin: 'zo_ma_di_wo_do_vr_za'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[vandaag om] LT',
+            nextDay: '[morgen om] LT',
+            nextWeek: 'dddd [om] LT',
+            lastDay: '[gisteren om] LT',
+            lastWeek: '[afgelopen] dddd [om] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'over %s',
+            past: '%s geleden',
+            s: 'een paar seconden',
+            ss: '%d seconden',
+            m: 'één minuut',
+            mm: '%d minuten',
+            h: 'één uur',
+            hh: '%d uur',
+            d: 'één dag',
+            dd: '%d dagen',
+            M: 'één maand',
+            MM: '%d maanden',
+            y: 'één jaar',
+            yy: '%d jaar',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
+        ordinal: function (number) {
+            return (
+                number +
+                (number === 1 || number === 8 || number >= 20 ? 'ste' : 'de')
+            );
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var monthsShortWithDots$2 =
+            'jan._feb._mrt._apr._mei_jun._jul._aug._sep._okt._nov._dec.'.split('_'),
+        monthsShortWithoutDots$2 =
+            'jan_feb_mrt_apr_mei_jun_jul_aug_sep_okt_nov_dec'.split('_'),
+        monthsParse$9 = [
+            /^jan/i,
+            /^feb/i,
+            /^(maart|mrt\.?)$/i,
+            /^apr/i,
+            /^mei$/i,
+            /^jun[i.]?$/i,
+            /^jul[i.]?$/i,
+            /^aug/i,
+            /^sep/i,
+            /^okt/i,
+            /^nov/i,
+            /^dec/i,
+        ],
+        monthsRegex$9 =
+            /^(januari|februari|maart|april|mei|ju[nl]i|augustus|september|oktober|november|december|jan\.?|feb\.?|mrt\.?|apr\.?|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i;
+
+    hooks.defineLocale('nl', {
+        months: 'januari_februari_maart_april_mei_juni_juli_augustus_september_oktober_november_december'.split(
+            '_'
+        ),
+        monthsShort: function (m, format) {
+            if (!m) {
+                return monthsShortWithDots$2;
+            } else if (/-MMM-/.test(format)) {
+                return monthsShortWithoutDots$2[m.month()];
+            } else {
+                return monthsShortWithDots$2[m.month()];
+            }
+        },
+
+        monthsRegex: monthsRegex$9,
+        monthsShortRegex: monthsRegex$9,
+        monthsStrictRegex:
+            /^(januari|februari|maart|april|mei|ju[nl]i|augustus|september|oktober|november|december)/i,
+        monthsShortStrictRegex:
+            /^(jan\.?|feb\.?|mrt\.?|apr\.?|mei|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i,
+
+        monthsParse: monthsParse$9,
+        longMonthsParse: monthsParse$9,
+        shortMonthsParse: monthsParse$9,
+
+        weekdays:
+            'zondag_maandag_dinsdag_woensdag_donderdag_vrijdag_zaterdag'.split('_'),
+        weekdaysShort: 'zo._ma._di._wo._do._vr._za.'.split('_'),
+        weekdaysMin: 'zo_ma_di_wo_do_vr_za'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD-MM-YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[vandaag om] LT',
+            nextDay: '[morgen om] LT',
+            nextWeek: 'dddd [om] LT',
+            lastDay: '[gisteren om] LT',
+            lastWeek: '[afgelopen] dddd [om] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'over %s',
+            past: '%s geleden',
+            s: 'een paar seconden',
+            ss: '%d seconden',
+            m: 'één minuut',
+            mm: '%d minuten',
+            h: 'één uur',
+            hh: '%d uur',
+            d: 'één dag',
+            dd: '%d dagen',
+            w: 'één week',
+            ww: '%d weken',
+            M: 'één maand',
+            MM: '%d maanden',
+            y: 'één jaar',
+            yy: '%d jaar',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
+        ordinal: function (number) {
+            return (
+                number +
+                (number === 1 || number === 8 || number >= 20 ? 'ste' : 'de')
+            );
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('nn', {
+        months: 'januar_februar_mars_april_mai_juni_juli_august_september_oktober_november_desember'.split(
+            '_'
+        ),
+        monthsShort:
+            'jan._feb._mars_apr._mai_juni_juli_aug._sep._okt._nov._des.'.split('_'),
+        monthsParseExact: true,
+        weekdays: 'sundag_måndag_tysdag_onsdag_torsdag_fredag_laurdag'.split('_'),
+        weekdaysShort: 'su._må._ty._on._to._fr._lau.'.split('_'),
+        weekdaysMin: 'su_må_ty_on_to_fr_la'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY [kl.] H:mm',
+            LLLL: 'dddd D. MMMM YYYY [kl.] HH:mm',
+        },
+        calendar: {
+            sameDay: '[I dag klokka] LT',
+            nextDay: '[I morgon klokka] LT',
+            nextWeek: 'dddd [klokka] LT',
+            lastDay: '[I går klokka] LT',
+            lastWeek: '[Føregåande] dddd [klokka] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'om %s',
+            past: '%s sidan',
+            s: 'nokre sekund',
+            ss: '%d sekund',
+            m: 'eit minutt',
+            mm: '%d minutt',
+            h: 'ein time',
+            hh: '%d timar',
+            d: 'ein dag',
+            dd: '%d dagar',
+            w: 'ei veke',
+            ww: '%d veker',
+            M: 'ein månad',
+            MM: '%d månader',
+            y: 'eit år',
+            yy: '%d år',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('oc-lnc', {
+        months: {
+            standalone:
+                'genièr_febrièr_març_abril_mai_junh_julhet_agost_setembre_octòbre_novembre_decembre'.split(
+                    '_'
+                ),
+            format: "de genièr_de febrièr_de març_d'abril_de mai_de junh_de julhet_d'agost_de setembre_d'octòbre_de novembre_de decembre".split(
+                '_'
+            ),
+            isFormat: /D[oD]?(\s)+MMMM/,
+        },
+        monthsShort:
+            'gen._febr._març_abr._mai_junh_julh._ago._set._oct._nov._dec.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'dimenge_diluns_dimars_dimècres_dijòus_divendres_dissabte'.split(
+            '_'
+        ),
+        weekdaysShort: 'dg._dl._dm._dc._dj._dv._ds.'.split('_'),
+        weekdaysMin: 'dg_dl_dm_dc_dj_dv_ds'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM [de] YYYY',
+            ll: 'D MMM YYYY',
+            LLL: 'D MMMM [de] YYYY [a] H:mm',
+            lll: 'D MMM YYYY, H:mm',
+            LLLL: 'dddd D MMMM [de] YYYY [a] H:mm',
+            llll: 'ddd D MMM YYYY, H:mm',
+        },
+        calendar: {
+            sameDay: '[uèi a] LT',
+            nextDay: '[deman a] LT',
+            nextWeek: 'dddd [a] LT',
+            lastDay: '[ièr a] LT',
+            lastWeek: 'dddd [passat a] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: "d'aquí %s",
+            past: 'fa %s',
+            s: 'unas segondas',
+            ss: '%d segondas',
+            m: 'una minuta',
+            mm: '%d minutas',
+            h: 'una ora',
+            hh: '%d oras',
+            d: 'un jorn',
+            dd: '%d jorns',
+            M: 'un mes',
+            MM: '%d meses',
+            y: 'un an',
+            yy: '%d ans',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(r|n|t|è|a)/,
+        ordinal: function (number, period) {
+            var output =
+                number === 1
+                    ? 'r'
+                    : number === 2
+                      ? 'n'
+                      : number === 3
+                        ? 'r'
+                        : number === 4
+                          ? 't'
+                          : 'è';
+            if (period === 'w' || period === 'W') {
+                output = 'a';
+            }
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4,
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$g = {
+            1: '੧',
+            2: '੨',
+            3: '੩',
+            4: '੪',
+            5: '੫',
+            6: '੬',
+            7: '੭',
+            8: '੮',
+            9: '੯',
+            0: '੦',
+        },
+        numberMap$f = {
+            '੧': '1',
+            '੨': '2',
+            '੩': '3',
+            '੪': '4',
+            '੫': '5',
+            '੬': '6',
+            '੭': '7',
+            '੮': '8',
+            '੯': '9',
+            '੦': '0',
+        };
+
+    hooks.defineLocale('pa-in', {
+        // There are months name as per Nanakshahi Calendar but they are not used as rigidly in modern Punjabi.
+        months: 'ਜਨਵਰੀ_ਫ਼ਰਵਰੀ_ਮਾਰਚ_ਅਪ੍ਰੈਲ_ਮਈ_ਜੂਨ_ਜੁਲਾਈ_ਅਗਸਤ_ਸਤੰਬਰ_ਅਕਤੂਬਰ_ਨਵੰਬਰ_ਦਸੰਬਰ'.split(
+            '_'
+        ),
+        monthsShort:
+            'ਜਨਵਰੀ_ਫ਼ਰਵਰੀ_ਮਾਰਚ_ਅਪ੍ਰੈਲ_ਮਈ_ਜੂਨ_ਜੁਲਾਈ_ਅਗਸਤ_ਸਤੰਬਰ_ਅਕਤੂਬਰ_ਨਵੰਬਰ_ਦਸੰਬਰ'.split(
+                '_'
+            ),
+        weekdays: 'ਐਤਵਾਰ_ਸੋਮਵਾਰ_ਮੰਗਲਵਾਰ_ਬੁਧਵਾਰ_ਵੀਰਵਾਰ_ਸ਼ੁੱਕਰਵਾਰ_ਸ਼ਨੀਚਰਵਾਰ'.split(
+            '_'
+        ),
+        weekdaysShort: 'ਐਤ_ਸੋਮ_ਮੰਗਲ_ਬੁਧ_ਵੀਰ_ਸ਼ੁਕਰ_ਸ਼ਨੀ'.split('_'),
+        weekdaysMin: 'ਐਤ_ਸੋਮ_ਮੰਗਲ_ਬੁਧ_ਵੀਰ_ਸ਼ੁਕਰ_ਸ਼ਨੀ'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm ਵਜੇ',
+            LTS: 'A h:mm:ss ਵਜੇ',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm ਵਜੇ',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm ਵਜੇ',
+        },
+        calendar: {
+            sameDay: '[ਅਜ] LT',
+            nextDay: '[ਕਲ] LT',
+            nextWeek: '[ਅਗਲਾ] dddd, LT',
+            lastDay: '[ਕਲ] LT',
+            lastWeek: '[ਪਿਛਲੇ] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s ਵਿੱਚ',
+            past: '%s ਪਿਛਲੇ',
+            s: 'ਕੁਝ ਸਕਿੰਟ',
+            ss: '%d ਸਕਿੰਟ',
+            m: 'ਇਕ ਮਿੰਟ',
+            mm: '%d ਮਿੰਟ',
+            h: 'ਇੱਕ ਘੰਟਾ',
+            hh: '%d ਘੰਟੇ',
+            d: 'ਇੱਕ ਦਿਨ',
+            dd: '%d ਦਿਨ',
+            M: 'ਇੱਕ ਮਹੀਨਾ',
+            MM: '%d ਮਹੀਨੇ',
+            y: 'ਇੱਕ ਸਾਲ',
+            yy: '%d ਸਾਲ',
+        },
+        preparse: function (string) {
+            return string.replace(/[੧੨੩੪੫੬੭੮੯੦]/g, function (match) {
+                return numberMap$f[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap$g[match];
+            });
+        },
+        // Punjabi notation for meridiems are quite fuzzy in practice. While there exists
+        // a rigid notion of a 'Pahar' it is not used as rigidly in modern Punjabi.
+        meridiemParse: /ਰਾਤ|ਸਵੇਰ|ਦੁਪਹਿਰ|ਸ਼ਾਮ/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'ਰਾਤ') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'ਸਵੇਰ') {
+                return hour;
+            } else if (meridiem === 'ਦੁਪਹਿਰ') {
+                return hour >= 10 ? hour : hour + 12;
+            } else if (meridiem === 'ਸ਼ਾਮ') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'ਰਾਤ';
+            } else if (hour < 10) {
+                return 'ਸਵੇਰ';
+            } else if (hour < 17) {
+                return 'ਦੁਪਹਿਰ';
+            } else if (hour < 20) {
+                return 'ਸ਼ਾਮ';
+            } else {
+                return 'ਰਾਤ';
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var monthsNominative =
+            'styczeń_luty_marzec_kwiecień_maj_czerwiec_lipiec_sierpień_wrzesień_październik_listopad_grudzień'.split(
+                '_'
+            ),
+        monthsSubjective =
+            'stycznia_lutego_marca_kwietnia_maja_czerwca_lipca_sierpnia_września_października_listopada_grudnia'.split(
+                '_'
+            ),
+        monthsParse$a = [
+            /^sty/i,
+            /^lut/i,
+            /^mar/i,
+            /^kwi/i,
+            /^maj/i,
+            /^cze/i,
+            /^lip/i,
+            /^sie/i,
+            /^wrz/i,
+            /^paź/i,
+            /^lis/i,
+            /^gru/i,
+        ];
+    function plural$3(n) {
+        return n % 10 < 5 && n % 10 > 1 && ~~(n / 10) % 10 !== 1;
+    }
+    function translate$8(number, withoutSuffix, key) {
+        var result = number + ' ';
+        switch (key) {
+            case 'ss':
+                return result + (plural$3(number) ? 'sekundy' : 'sekund');
+            case 'm':
+                return withoutSuffix ? 'minuta' : 'minutę';
+            case 'mm':
+                return result + (plural$3(number) ? 'minuty' : 'minut');
+            case 'h':
+                return withoutSuffix ? 'godzina' : 'godzinę';
+            case 'hh':
+                return result + (plural$3(number) ? 'godziny' : 'godzin');
+            case 'ww':
+                return result + (plural$3(number) ? 'tygodnie' : 'tygodni');
+            case 'MM':
+                return result + (plural$3(number) ? 'miesiące' : 'miesięcy');
+            case 'yy':
+                return result + (plural$3(number) ? 'lata' : 'lat');
+        }
+    }
+
+    hooks.defineLocale('pl', {
+        months: function (momentToFormat, format) {
+            if (!momentToFormat) {
+                return monthsNominative;
+            } else if (/D MMMM/.test(format)) {
+                return monthsSubjective[momentToFormat.month()];
+            } else {
+                return monthsNominative[momentToFormat.month()];
+            }
+        },
+        monthsShort: 'sty_lut_mar_kwi_maj_cze_lip_sie_wrz_paź_lis_gru'.split('_'),
+        monthsParse: monthsParse$a,
+        longMonthsParse: monthsParse$a,
+        shortMonthsParse: monthsParse$a,
+        weekdays:
+            'niedziela_poniedziałek_wtorek_środa_czwartek_piątek_sobota'.split('_'),
+        weekdaysShort: 'ndz_pon_wt_śr_czw_pt_sob'.split('_'),
+        weekdaysMin: 'Nd_Pn_Wt_Śr_Cz_Pt_So'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Dziś o] LT',
+            nextDay: '[Jutro o] LT',
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[W niedzielę o] LT';
+
+                    case 2:
+                        return '[We wtorek o] LT';
+
+                    case 3:
+                        return '[W środę o] LT';
+
+                    case 6:
+                        return '[W sobotę o] LT';
+
+                    default:
+                        return '[W] dddd [o] LT';
+                }
+            },
+            lastDay: '[Wczoraj o] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[W zeszłą niedzielę o] LT';
+                    case 3:
+                        return '[W zeszłą środę o] LT';
+                    case 6:
+                        return '[W zeszłą sobotę o] LT';
+                    default:
+                        return '[W zeszły] dddd [o] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'za %s',
+            past: '%s temu',
+            s: 'kilka sekund',
+            ss: translate$8,
+            m: translate$8,
+            mm: translate$8,
+            h: translate$8,
+            hh: translate$8,
+            d: '1 dzień',
+            dd: '%d dni',
+            w: 'tydzień',
+            ww: translate$8,
+            M: 'miesiąc',
+            MM: translate$8,
+            y: 'rok',
+            yy: translate$8,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('pt-br', {
+        months: 'janeiro_fevereiro_março_abril_maio_junho_julho_agosto_setembro_outubro_novembro_dezembro'.split(
+            '_'
+        ),
+        monthsShort: 'jan_fev_mar_abr_mai_jun_jul_ago_set_out_nov_dez'.split('_'),
+        weekdays:
+            'domingo_segunda-feira_terça-feira_quarta-feira_quinta-feira_sexta-feira_sábado'.split(
+                '_'
+            ),
+        weekdaysShort: 'dom_seg_ter_qua_qui_sex_sáb'.split('_'),
+        weekdaysMin: 'do_2ª_3ª_4ª_5ª_6ª_sá'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D [de] MMMM [de] YYYY',
+            LLL: 'D [de] MMMM [de] YYYY [às] HH:mm',
+            LLLL: 'dddd, D [de] MMMM [de] YYYY [às] HH:mm',
+        },
+        calendar: {
+            sameDay: '[Hoje às] LT',
+            nextDay: '[Amanhã às] LT',
+            nextWeek: 'dddd [às] LT',
+            lastDay: '[Ontem às] LT',
+            lastWeek: function () {
+                return this.day() === 0 || this.day() === 6
+                    ? '[Último] dddd [às] LT' // Saturday + Sunday
+                    : '[Última] dddd [às] LT'; // Monday - Friday
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'em %s',
+            past: 'há %s',
+            s: 'poucos segundos',
+            ss: '%d segundos',
+            m: 'um minuto',
+            mm: '%d minutos',
+            h: 'uma hora',
+            hh: '%d horas',
+            d: 'um dia',
+            dd: '%d dias',
+            M: 'um mês',
+            MM: '%d meses',
+            y: 'um ano',
+            yy: '%d anos',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        invalidDate: 'Data inválida',
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('pt', {
+        months: 'janeiro_fevereiro_março_abril_maio_junho_julho_agosto_setembro_outubro_novembro_dezembro'.split(
+            '_'
+        ),
+        monthsShort: 'jan_fev_mar_abr_mai_jun_jul_ago_set_out_nov_dez'.split('_'),
+        weekdays:
+            'Domingo_Segunda-feira_Terça-feira_Quarta-feira_Quinta-feira_Sexta-feira_Sábado'.split(
+                '_'
+            ),
+        weekdaysShort: 'Dom_Seg_Ter_Qua_Qui_Sex_Sáb'.split('_'),
+        weekdaysMin: 'Do_2ª_3ª_4ª_5ª_6ª_Sá'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D [de] MMMM [de] YYYY',
+            LLL: 'D [de] MMMM [de] YYYY HH:mm',
+            LLLL: 'dddd, D [de] MMMM [de] YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Hoje às] LT',
+            nextDay: '[Amanhã às] LT',
+            nextWeek: 'dddd [às] LT',
+            lastDay: '[Ontem às] LT',
+            lastWeek: function () {
+                return this.day() === 0 || this.day() === 6
+                    ? '[Último] dddd [às] LT' // Saturday + Sunday
+                    : '[Última] dddd [às] LT'; // Monday - Friday
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'em %s',
+            past: 'há %s',
+            s: 'segundos',
+            ss: '%d segundos',
+            m: 'um minuto',
+            mm: '%d minutos',
+            h: 'uma hora',
+            hh: '%d horas',
+            d: 'um dia',
+            dd: '%d dias',
+            w: 'uma semana',
+            ww: '%d semanas',
+            M: 'um mês',
+            MM: '%d meses',
+            y: 'um ano',
+            yy: '%d anos',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}º/,
+        ordinal: '%dº',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function relativeTimeWithPlural$2(number, withoutSuffix, key) {
+        var format = {
+                ss: 'secunde',
+                mm: 'minute',
+                hh: 'ore',
+                dd: 'zile',
+                ww: 'săptămâni',
+                MM: 'luni',
+                yy: 'ani',
+            },
+            separator = ' ';
+        if (number % 100 >= 20 || (number >= 100 && number % 100 === 0)) {
+            separator = ' de ';
+        }
+        return number + separator + format[key];
+    }
+
+    hooks.defineLocale('ro', {
+        months: 'ianuarie_februarie_martie_aprilie_mai_iunie_iulie_august_septembrie_octombrie_noiembrie_decembrie'.split(
+            '_'
+        ),
+        monthsShort:
+            'ian._feb._mart._apr._mai_iun._iul._aug._sept._oct._nov._dec.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'duminică_luni_marți_miercuri_joi_vineri_sâmbătă'.split('_'),
+        weekdaysShort: 'Dum_Lun_Mar_Mie_Joi_Vin_Sâm'.split('_'),
+        weekdaysMin: 'Du_Lu_Ma_Mi_Jo_Vi_Sâ'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY H:mm',
+            LLLL: 'dddd, D MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[azi la] LT',
+            nextDay: '[mâine la] LT',
+            nextWeek: 'dddd [la] LT',
+            lastDay: '[ieri la] LT',
+            lastWeek: '[fosta] dddd [la] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'peste %s',
+            past: '%s în urmă',
+            s: 'câteva secunde',
+            ss: relativeTimeWithPlural$2,
+            m: 'un minut',
+            mm: relativeTimeWithPlural$2,
+            h: 'o oră',
+            hh: relativeTimeWithPlural$2,
+            d: 'o zi',
+            dd: relativeTimeWithPlural$2,
+            w: 'o săptămână',
+            ww: relativeTimeWithPlural$2,
+            M: 'o lună',
+            MM: relativeTimeWithPlural$2,
+            y: 'un an',
+            yy: relativeTimeWithPlural$2,
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function plural$4(word, num) {
+        var forms = word.split('_');
+        return num % 10 === 1 && num % 100 !== 11
+            ? forms[0]
+            : num % 10 >= 2 && num % 10 <= 4 && (num % 100 < 10 || num % 100 >= 20)
+              ? forms[1]
+              : forms[2];
+    }
+    function relativeTimeWithPlural$3(number, withoutSuffix, key) {
+        var format = {
+            ss: withoutSuffix ? 'секунда_секунды_секунд' : 'секунду_секунды_секунд',
+            mm: withoutSuffix ? 'минута_минуты_минут' : 'минуту_минуты_минут',
+            hh: 'час_часа_часов',
+            dd: 'день_дня_дней',
+            ww: 'неделя_недели_недель',
+            MM: 'месяц_месяца_месяцев',
+            yy: 'год_года_лет',
+        };
+        if (key === 'm') {
+            return withoutSuffix ? 'минута' : 'минуту';
+        } else {
+            return number + ' ' + plural$4(format[key], +number);
+        }
+    }
+    var monthsParse$b = [
+        /^янв/i,
+        /^фев/i,
+        /^мар/i,
+        /^апр/i,
+        /^ма[йя]/i,
+        /^июн/i,
+        /^июл/i,
+        /^авг/i,
+        /^сен/i,
+        /^окт/i,
+        /^ноя/i,
+        /^дек/i,
+    ];
+
+    // http://new.gramota.ru/spravka/rules/139-prop : § 103
+    // Сокращения месяцев: http://new.gramota.ru/spravka/buro/search-answer?s=242637
+    // CLDR data:          http://www.unicode.org/cldr/charts/28/summary/ru.html#1753
+    hooks.defineLocale('ru', {
+        months: {
+            format: 'января_февраля_марта_апреля_мая_июня_июля_августа_сентября_октября_ноября_декабря'.split(
+                '_'
+            ),
+            standalone:
+                'январь_февраль_март_апрель_май_июнь_июль_август_сентябрь_октябрь_ноябрь_декабрь'.split(
+                    '_'
+                ),
+        },
+        monthsShort: {
+            // по CLDR именно "июл." и "июн.", но какой смысл менять букву на точку?
+            format: 'янв._февр._мар._апр._мая_июня_июля_авг._сент._окт._нояб._дек.'.split(
+                '_'
+            ),
+            standalone:
+                'янв._февр._март_апр._май_июнь_июль_авг._сент._окт._нояб._дек.'.split(
+                    '_'
+                ),
+        },
+        weekdays: {
+            standalone:
+                'воскресенье_понедельник_вторник_среда_четверг_пятница_суббота'.split(
+                    '_'
+                ),
+            format: 'воскресенье_понедельник_вторник_среду_четверг_пятницу_субботу'.split(
+                '_'
+            ),
+            isFormat: /\[ ?[Вв] ?(?:прошлую|следующую|эту)? ?] ?dddd/,
+        },
+        weekdaysShort: 'вс_пн_вт_ср_чт_пт_сб'.split('_'),
+        weekdaysMin: 'вс_пн_вт_ср_чт_пт_сб'.split('_'),
+        monthsParse: monthsParse$b,
+        longMonthsParse: monthsParse$b,
+        shortMonthsParse: monthsParse$b,
+
+        // полные названия с падежами, по три буквы, для некоторых, по 4 буквы, сокращения с точкой и без точки
+        monthsRegex:
+            /^(январ[ья]|янв\.?|феврал[ья]|февр?\.?|марта?|мар\.?|апрел[ья]|апр\.?|ма[йя]|июн[ья]|июн\.?|июл[ья]|июл\.?|августа?|авг\.?|сентябр[ья]|сент?\.?|октябр[ья]|окт\.?|ноябр[ья]|нояб?\.?|декабр[ья]|дек\.?)/i,
+
+        // копия предыдущего
+        monthsShortRegex:
+            /^(январ[ья]|янв\.?|феврал[ья]|февр?\.?|марта?|мар\.?|апрел[ья]|апр\.?|ма[йя]|июн[ья]|июн\.?|июл[ья]|июл\.?|августа?|авг\.?|сентябр[ья]|сент?\.?|октябр[ья]|окт\.?|ноябр[ья]|нояб?\.?|декабр[ья]|дек\.?)/i,
+
+        // полные названия с падежами
+        monthsStrictRegex:
+            /^(январ[яь]|феврал[яь]|марта?|апрел[яь]|ма[яй]|июн[яь]|июл[яь]|августа?|сентябр[яь]|октябр[яь]|ноябр[яь]|декабр[яь])/i,
+
+        // Выражение, которое соответствует только сокращённым формам
+        monthsShortStrictRegex:
+            /^(янв\.|февр?\.|мар[т.]|апр\.|ма[яй]|июн[ья.]|июл[ья.]|авг\.|сент?\.|окт\.|нояб?\.|дек\.)/i,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY г.',
+            LLL: 'D MMMM YYYY г., H:mm',
+            LLLL: 'dddd, D MMMM YYYY г., H:mm',
+        },
+        calendar: {
+            sameDay: '[Сегодня, в] LT',
+            nextDay: '[Завтра, в] LT',
+            lastDay: '[Вчера, в] LT',
+            nextWeek: function (now) {
+                if (now.week() !== this.week()) {
+                    switch (this.day()) {
+                        case 0:
+                            return '[В следующее] dddd, [в] LT';
+                        case 1:
+                        case 2:
+                        case 4:
+                            return '[В следующий] dddd, [в] LT';
+                        case 3:
+                        case 5:
+                        case 6:
+                            return '[В следующую] dddd, [в] LT';
+                    }
+                } else {
+                    if (this.day() === 2) {
+                        return '[Во] dddd, [в] LT';
+                    } else {
+                        return '[В] dddd, [в] LT';
+                    }
+                }
+            },
+            lastWeek: function (now) {
+                if (now.week() !== this.week()) {
+                    switch (this.day()) {
+                        case 0:
+                            return '[В прошлое] dddd, [в] LT';
+                        case 1:
+                        case 2:
+                        case 4:
+                            return '[В прошлый] dddd, [в] LT';
+                        case 3:
+                        case 5:
+                        case 6:
+                            return '[В прошлую] dddd, [в] LT';
+                    }
+                } else {
+                    if (this.day() === 2) {
+                        return '[Во] dddd, [в] LT';
+                    } else {
+                        return '[В] dddd, [в] LT';
+                    }
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'через %s',
+            past: '%s назад',
+            s: 'несколько секунд',
+            ss: relativeTimeWithPlural$3,
+            m: relativeTimeWithPlural$3,
+            mm: relativeTimeWithPlural$3,
+            h: 'час',
+            hh: relativeTimeWithPlural$3,
+            d: 'день',
+            dd: relativeTimeWithPlural$3,
+            w: 'неделя',
+            ww: relativeTimeWithPlural$3,
+            M: 'месяц',
+            MM: relativeTimeWithPlural$3,
+            y: 'год',
+            yy: relativeTimeWithPlural$3,
+        },
+        meridiemParse: /ночи|утра|дня|вечера/i,
+        isPM: function (input) {
+            return /^(дня|вечера)$/.test(input);
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'ночи';
+            } else if (hour < 12) {
+                return 'утра';
+            } else if (hour < 17) {
+                return 'дня';
+            } else {
+                return 'вечера';
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(й|го|я)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'M':
+                case 'd':
+                case 'DDD':
+                    return number + '-й';
+                case 'D':
+                    return number + '-го';
+                case 'w':
+                case 'W':
+                    return number + '-я';
+                default:
+                    return number;
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var months$9 = [
+            'جنوري',
+            'فيبروري',
+            'مارچ',
+            'اپريل',
+            'مئي',
+            'جون',
+            'جولاءِ',
+            'آگسٽ',
+            'سيپٽمبر',
+            'آڪٽوبر',
+            'نومبر',
+            'ڊسمبر',
+        ],
+        days$1 = ['آچر', 'سومر', 'اڱارو', 'اربع', 'خميس', 'جمع', 'ڇنڇر'];
+
+    hooks.defineLocale('sd', {
+        months: months$9,
+        monthsShort: months$9,
+        weekdays: days$1,
+        weekdaysShort: days$1,
+        weekdaysMin: days$1,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd، D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /صبح|شام/,
+        isPM: function (input) {
+            return 'شام' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'صبح';
+            }
+            return 'شام';
+        },
+        calendar: {
+            sameDay: '[اڄ] LT',
+            nextDay: '[سڀاڻي] LT',
+            nextWeek: 'dddd [اڳين هفتي تي] LT',
+            lastDay: '[ڪالهه] LT',
+            lastWeek: '[گزريل هفتي] dddd [تي] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s پوء',
+            past: '%s اڳ',
+            s: 'چند سيڪنڊ',
+            ss: '%d سيڪنڊ',
+            m: 'هڪ منٽ',
+            mm: '%d منٽ',
+            h: 'هڪ ڪلاڪ',
+            hh: '%d ڪلاڪ',
+            d: 'هڪ ڏينهن',
+            dd: '%d ڏينهن',
+            M: 'هڪ مهينو',
+            MM: '%d مهينا',
+            y: 'هڪ سال',
+            yy: '%d سال',
+        },
+        preparse: function (string) {
+            return string.replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string.replace(/,/g, '،');
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('se', {
+        months: 'ođđajagemánnu_guovvamánnu_njukčamánnu_cuoŋománnu_miessemánnu_geassemánnu_suoidnemánnu_borgemánnu_čakčamánnu_golggotmánnu_skábmamánnu_juovlamánnu'.split(
+            '_'
+        ),
+        monthsShort:
+            'ođđj_guov_njuk_cuo_mies_geas_suoi_borg_čakč_golg_skáb_juov'.split('_'),
+        weekdays:
+            'sotnabeaivi_vuossárga_maŋŋebárga_gaskavahkku_duorastat_bearjadat_lávvardat'.split(
+                '_'
+            ),
+        weekdaysShort: 'sotn_vuos_maŋ_gask_duor_bear_láv'.split('_'),
+        weekdaysMin: 's_v_m_g_d_b_L'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'MMMM D. [b.] YYYY',
+            LLL: 'MMMM D. [b.] YYYY [ti.] HH:mm',
+            LLLL: 'dddd, MMMM D. [b.] YYYY [ti.] HH:mm',
+        },
+        calendar: {
+            sameDay: '[otne ti] LT',
+            nextDay: '[ihttin ti] LT',
+            nextWeek: 'dddd [ti] LT',
+            lastDay: '[ikte ti] LT',
+            lastWeek: '[ovddit] dddd [ti] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s geažes',
+            past: 'maŋit %s',
+            s: 'moadde sekunddat',
+            ss: '%d sekunddat',
+            m: 'okta minuhta',
+            mm: '%d minuhtat',
+            h: 'okta diimmu',
+            hh: '%d diimmut',
+            d: 'okta beaivi',
+            dd: '%d beaivvit',
+            M: 'okta mánnu',
+            MM: '%d mánut',
+            y: 'okta jahki',
+            yy: '%d jagit',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    /*jshint -W100*/
+    hooks.defineLocale('si', {
+        months: 'ජනවාරි_පෙබරවාරි_මාර්තු_අප්‍රේල්_මැයි_ජූනි_ජූලි_අගෝස්තු_සැප්තැම්බර්_ඔක්තෝබර්_නොවැම්බර්_දෙසැම්බර්'.split(
+            '_'
+        ),
+        monthsShort: 'ජන_පෙබ_මාර්_අප්_මැයි_ජූනි_ජූලි_අගෝ_සැප්_ඔක්_නොවැ_දෙසැ'.split(
+            '_'
+        ),
+        weekdays:
+            'ඉරිදා_සඳුදා_අඟහරුවාදා_බදාදා_බ්‍රහස්පතින්දා_සිකුරාදා_සෙනසුරාදා'.split(
+                '_'
+            ),
+        weekdaysShort: 'ඉරි_සඳු_අඟ_බදා_බ්‍රහ_සිකු_සෙන'.split('_'),
+        weekdaysMin: 'ඉ_ස_අ_බ_බ්‍ර_සි_සෙ'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'a h:mm',
+            LTS: 'a h:mm:ss',
+            L: 'YYYY/MM/DD',
+            LL: 'YYYY MMMM D',
+            LLL: 'YYYY MMMM D, a h:mm',
+            LLLL: 'YYYY MMMM D [වැනි] dddd, a h:mm:ss',
+        },
+        calendar: {
+            sameDay: '[අද] LT[ට]',
+            nextDay: '[හෙට] LT[ට]',
+            nextWeek: 'dddd LT[ට]',
+            lastDay: '[ඊයේ] LT[ට]',
+            lastWeek: '[පසුගිය] dddd LT[ට]',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%sකින්',
+            past: '%sකට පෙර',
+            s: 'තත්පර කිහිපය',
+            ss: 'තත්පර %d',
+            m: 'මිනිත්තුව',
+            mm: 'මිනිත්තු %d',
+            h: 'පැය',
+            hh: 'පැය %d',
+            d: 'දිනය',
+            dd: 'දින %d',
+            M: 'මාසය',
+            MM: 'මාස %d',
+            y: 'වසර',
+            yy: 'වසර %d',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2} වැනි/,
+        ordinal: function (number) {
+            return number + ' වැනි';
+        },
+        meridiemParse: /පෙර වරු|පස් වරු|පෙ.ව|ප.ව./,
+        isPM: function (input) {
+            return input === 'ප.ව.' || input === 'පස් වරු';
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours > 11) {
+                return isLower ? 'ප.ව.' : 'පස් වරු';
+            } else {
+                return isLower ? 'පෙ.ව.' : 'පෙර වරු';
+            }
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var months$a =
+            'január_február_marec_apríl_máj_jún_júl_august_september_október_november_december'.split(
+                '_'
+            ),
+        monthsShort$7 = 'jan_feb_mar_apr_máj_jún_júl_aug_sep_okt_nov_dec'.split('_');
+    function plural$5(n) {
+        return n > 1 && n < 5;
+    }
+    function translate$9(number, withoutSuffix, key, isFuture) {
+        var result = number + ' ';
+        switch (key) {
+            case 's': // a few seconds / in a few seconds / a few seconds ago
+                return withoutSuffix || isFuture ? 'pár sekúnd' : 'pár sekundami';
+            case 'ss': // 9 seconds / in 9 seconds / 9 seconds ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural$5(number) ? 'sekundy' : 'sekúnd');
+                } else {
+                    return result + 'sekundami';
+                }
+            case 'm': // a minute / in a minute / a minute ago
+                return withoutSuffix ? 'minúta' : isFuture ? 'minútu' : 'minútou';
+            case 'mm': // 9 minutes / in 9 minutes / 9 minutes ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural$5(number) ? 'minúty' : 'minút');
+                } else {
+                    return result + 'minútami';
+                }
+            case 'h': // an hour / in an hour / an hour ago
+                return withoutSuffix ? 'hodina' : isFuture ? 'hodinu' : 'hodinou';
+            case 'hh': // 9 hours / in 9 hours / 9 hours ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural$5(number) ? 'hodiny' : 'hodín');
+                } else {
+                    return result + 'hodinami';
+                }
+            case 'd': // a day / in a day / a day ago
+                return withoutSuffix || isFuture ? 'deň' : 'dňom';
+            case 'dd': // 9 days / in 9 days / 9 days ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural$5(number) ? 'dni' : 'dní');
+                } else {
+                    return result + 'dňami';
+                }
+            case 'M': // a month / in a month / a month ago
+                return withoutSuffix || isFuture ? 'mesiac' : 'mesiacom';
+            case 'MM': // 9 months / in 9 months / 9 months ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural$5(number) ? 'mesiace' : 'mesiacov');
+                } else {
+                    return result + 'mesiacmi';
+                }
+            case 'y': // a year / in a year / a year ago
+                return withoutSuffix || isFuture ? 'rok' : 'rokom';
+            case 'yy': // 9 years / in 9 years / 9 years ago
+                if (withoutSuffix || isFuture) {
+                    return result + (plural$5(number) ? 'roky' : 'rokov');
+                } else {
+                    return result + 'rokmi';
+                }
+        }
+    }
+
+    hooks.defineLocale('sk', {
+        months: months$a,
+        monthsShort: monthsShort$7,
+        weekdays: 'nedeľa_pondelok_utorok_streda_štvrtok_piatok_sobota'.split('_'),
+        weekdaysShort: 'ne_po_ut_st_št_pi_so'.split('_'),
+        weekdaysMin: 'ne_po_ut_st_št_pi_so'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY H:mm',
+            LLLL: 'dddd D. MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[dnes o] LT',
+            nextDay: '[zajtra o] LT',
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[v nedeľu o] LT';
+                    case 1:
+                    case 2:
+                        return '[v] dddd [o] LT';
+                    case 3:
+                        return '[v stredu o] LT';
+                    case 4:
+                        return '[vo štvrtok o] LT';
+                    case 5:
+                        return '[v piatok o] LT';
+                    case 6:
+                        return '[v sobotu o] LT';
+                }
+            },
+            lastDay: '[včera o] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[minulú nedeľu o] LT';
+                    case 1:
+                    case 2:
+                        return '[minulý] dddd [o] LT';
+                    case 3:
+                        return '[minulú stredu o] LT';
+                    case 4:
+                    case 5:
+                        return '[minulý] dddd [o] LT';
+                    case 6:
+                        return '[minulú sobotu o] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'za %s',
+            past: 'pred %s',
+            s: translate$9,
+            ss: translate$9,
+            m: translate$9,
+            mm: translate$9,
+            h: translate$9,
+            hh: translate$9,
+            d: translate$9,
+            dd: translate$9,
+            M: translate$9,
+            MM: translate$9,
+            y: translate$9,
+            yy: translate$9,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function processRelativeTime$9(number, withoutSuffix, key, isFuture) {
+        var result = number + ' ';
+        switch (key) {
+            case 's':
+                return withoutSuffix || isFuture
+                    ? 'nekaj sekund'
+                    : 'nekaj sekundami';
+            case 'ss':
+                if (number === 1) {
+                    result += withoutSuffix ? 'sekundo' : 'sekundi';
+                } else if (number === 2) {
+                    result += withoutSuffix || isFuture ? 'sekundi' : 'sekundah';
+                } else if (number < 5) {
+                    result += withoutSuffix || isFuture ? 'sekunde' : 'sekundah';
+                } else {
+                    result += 'sekund';
+                }
+                return result;
+            case 'm':
+                return withoutSuffix ? 'ena minuta' : 'eno minuto';
+            case 'mm':
+                if (number === 1) {
+                    result += withoutSuffix ? 'minuta' : 'minuto';
+                } else if (number === 2) {
+                    result += withoutSuffix || isFuture ? 'minuti' : 'minutama';
+                } else if (number < 5) {
+                    result += withoutSuffix || isFuture ? 'minute' : 'minutami';
+                } else {
+                    result += withoutSuffix || isFuture ? 'minut' : 'minutami';
+                }
+                return result;
+            case 'h':
+                return withoutSuffix ? 'ena ura' : 'eno uro';
+            case 'hh':
+                if (number === 1) {
+                    result += withoutSuffix ? 'ura' : 'uro';
+                } else if (number === 2) {
+                    result += withoutSuffix || isFuture ? 'uri' : 'urama';
+                } else if (number < 5) {
+                    result += withoutSuffix || isFuture ? 'ure' : 'urami';
+                } else {
+                    result += withoutSuffix || isFuture ? 'ur' : 'urami';
+                }
+                return result;
+            case 'd':
+                return withoutSuffix || isFuture ? 'en dan' : 'enim dnem';
+            case 'dd':
+                if (number === 1) {
+                    result += withoutSuffix || isFuture ? 'dan' : 'dnem';
+                } else if (number === 2) {
+                    result += withoutSuffix || isFuture ? 'dni' : 'dnevoma';
+                } else {
+                    result += withoutSuffix || isFuture ? 'dni' : 'dnevi';
+                }
+                return result;
+            case 'M':
+                return withoutSuffix || isFuture ? 'en mesec' : 'enim mesecem';
+            case 'MM':
+                if (number === 1) {
+                    result += withoutSuffix || isFuture ? 'mesec' : 'mesecem';
+                } else if (number === 2) {
+                    result += withoutSuffix || isFuture ? 'meseca' : 'mesecema';
+                } else if (number < 5) {
+                    result += withoutSuffix || isFuture ? 'mesece' : 'meseci';
+                } else {
+                    result += withoutSuffix || isFuture ? 'mesecev' : 'meseci';
+                }
+                return result;
+            case 'y':
+                return withoutSuffix || isFuture ? 'eno leto' : 'enim letom';
+            case 'yy':
+                if (number === 1) {
+                    result += withoutSuffix || isFuture ? 'leto' : 'letom';
+                } else if (number === 2) {
+                    result += withoutSuffix || isFuture ? 'leti' : 'letoma';
+                } else if (number < 5) {
+                    result += withoutSuffix || isFuture ? 'leta' : 'leti';
+                } else {
+                    result += withoutSuffix || isFuture ? 'let' : 'leti';
+                }
+                return result;
+        }
+    }
+
+    hooks.defineLocale('sl', {
+        months: 'januar_februar_marec_april_maj_junij_julij_avgust_september_oktober_november_december'.split(
+            '_'
+        ),
+        monthsShort:
+            'jan._feb._mar._apr._maj._jun._jul._avg._sep._okt._nov._dec.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'nedelja_ponedeljek_torek_sreda_četrtek_petek_sobota'.split('_'),
+        weekdaysShort: 'ned._pon._tor._sre._čet._pet._sob.'.split('_'),
+        weekdaysMin: 'ne_po_to_sr_če_pe_so'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD. MM. YYYY',
+            LL: 'D. MMMM YYYY',
+            LLL: 'D. MMMM YYYY H:mm',
+            LLLL: 'dddd, D. MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[danes ob] LT',
+            nextDay: '[jutri ob] LT',
+
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[v] [nedeljo] [ob] LT';
+                    case 3:
+                        return '[v] [sredo] [ob] LT';
+                    case 6:
+                        return '[v] [soboto] [ob] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[v] dddd [ob] LT';
+                }
+            },
+            lastDay: '[včeraj ob] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[prejšnjo] [nedeljo] [ob] LT';
+                    case 3:
+                        return '[prejšnjo] [sredo] [ob] LT';
+                    case 6:
+                        return '[prejšnjo] [soboto] [ob] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[prejšnji] dddd [ob] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'čez %s',
+            past: 'pred %s',
+            s: processRelativeTime$9,
+            ss: processRelativeTime$9,
+            m: processRelativeTime$9,
+            mm: processRelativeTime$9,
+            h: processRelativeTime$9,
+            hh: processRelativeTime$9,
+            d: processRelativeTime$9,
+            dd: processRelativeTime$9,
+            M: processRelativeTime$9,
+            MM: processRelativeTime$9,
+            y: processRelativeTime$9,
+            yy: processRelativeTime$9,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('sq', {
+        months: 'Janar_Shkurt_Mars_Prill_Maj_Qershor_Korrik_Gusht_Shtator_Tetor_Nëntor_Dhjetor'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Shk_Mar_Pri_Maj_Qer_Kor_Gus_Sht_Tet_Nën_Dhj'.split('_'),
+        weekdays: 'E Diel_E Hënë_E Martë_E Mërkurë_E Enjte_E Premte_E Shtunë'.split(
+            '_'
+        ),
+        weekdaysShort: 'Die_Hën_Mar_Mër_Enj_Pre_Sht'.split('_'),
+        weekdaysMin: 'D_H_Ma_Më_E_P_Sh'.split('_'),
+        weekdaysParseExact: true,
+        meridiemParse: /PD|MD/,
+        isPM: function (input) {
+            return input.charAt(0) === 'M';
+        },
+        meridiem: function (hours, minutes, isLower) {
+            return hours < 12 ? 'PD' : 'MD';
+        },
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Sot në] LT',
+            nextDay: '[Nesër në] LT',
+            nextWeek: 'dddd [në] LT',
+            lastDay: '[Dje në] LT',
+            lastWeek: 'dddd [e kaluar në] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'në %s',
+            past: '%s më parë',
+            s: 'disa sekonda',
+            ss: '%d sekonda',
+            m: 'një minutë',
+            mm: '%d minuta',
+            h: 'një orë',
+            hh: '%d orë',
+            d: 'një ditë',
+            dd: '%d ditë',
+            M: 'një muaj',
+            MM: '%d muaj',
+            y: 'një vit',
+            yy: '%d vite',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var translator$1 = {
+        words: {
+            //Different grammatical cases
+            ss: ['секунда', 'секунде', 'секунди'],
+            m: ['један минут', 'једног минута'],
+            mm: ['минут', 'минута', 'минута'],
+            h: ['један сат', 'једног сата'],
+            hh: ['сат', 'сата', 'сати'],
+            d: ['један дан', 'једног дана'],
+            dd: ['дан', 'дана', 'дана'],
+            M: ['један месец', 'једног месеца'],
+            MM: ['месец', 'месеца', 'месеци'],
+            y: ['једну годину', 'једне године'],
+            yy: ['годину', 'године', 'година'],
+        },
+        correctGrammaticalCase: function (number, wordKey) {
+            if (
+                number % 10 >= 1 &&
+                number % 10 <= 4 &&
+                (number % 100 < 10 || number % 100 >= 20)
+            ) {
+                return number % 10 === 1 ? wordKey[0] : wordKey[1];
+            }
+            return wordKey[2];
+        },
+        translate: function (number, withoutSuffix, key, isFuture) {
+            var wordKey = translator$1.words[key],
+                word;
+
+            if (key.length === 1) {
+                // Nominativ
+                if (key === 'y' && withoutSuffix) return 'једна година';
+                return isFuture || withoutSuffix ? wordKey[0] : wordKey[1];
+            }
+
+            word = translator$1.correctGrammaticalCase(number, wordKey);
+            // Nominativ
+            if (key === 'yy' && withoutSuffix && word === 'годину') {
+                return number + ' година';
+            }
+
+            return number + ' ' + word;
+        },
+    };
+
+    hooks.defineLocale('sr-cyrl', {
+        months: 'јануар_фебруар_март_април_мај_јун_јул_август_септембар_октобар_новембар_децембар'.split(
+            '_'
+        ),
+        monthsShort:
+            'јан._феб._мар._апр._мај_јун_јул_авг._сеп._окт._нов._дец.'.split('_'),
+        monthsParseExact: true,
+        weekdays: 'недеља_понедељак_уторак_среда_четвртак_петак_субота'.split('_'),
+        weekdaysShort: 'нед._пон._уто._сре._чет._пет._суб.'.split('_'),
+        weekdaysMin: 'не_по_ут_ср_че_пе_су'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'D. M. YYYY.',
+            LL: 'D. MMMM YYYY.',
+            LLL: 'D. MMMM YYYY. H:mm',
+            LLLL: 'dddd, D. MMMM YYYY. H:mm',
+        },
+        calendar: {
+            sameDay: '[данас у] LT',
+            nextDay: '[сутра у] LT',
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[у] [недељу] [у] LT';
+                    case 3:
+                        return '[у] [среду] [у] LT';
+                    case 6:
+                        return '[у] [суботу] [у] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[у] dddd [у] LT';
+                }
+            },
+            lastDay: '[јуче у] LT',
+            lastWeek: function () {
+                var lastWeekDays = [
+                    '[прошле] [недеље] [у] LT',
+                    '[прошлог] [понедељка] [у] LT',
+                    '[прошлог] [уторка] [у] LT',
+                    '[прошле] [среде] [у] LT',
+                    '[прошлог] [четвртка] [у] LT',
+                    '[прошлог] [петка] [у] LT',
+                    '[прошле] [суботе] [у] LT',
+                ];
+                return lastWeekDays[this.day()];
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'за %s',
+            past: 'пре %s',
+            s: 'неколико секунди',
+            ss: translator$1.translate,
+            m: translator$1.translate,
+            mm: translator$1.translate,
+            h: translator$1.translate,
+            hh: translator$1.translate,
+            d: translator$1.translate,
+            dd: translator$1.translate,
+            M: translator$1.translate,
+            MM: translator$1.translate,
+            y: translator$1.translate,
+            yy: translator$1.translate,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 1st is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var translator$2 = {
+        words: {
+            //Different grammatical cases
+            ss: ['sekunda', 'sekunde', 'sekundi'],
+            m: ['jedan minut', 'jednog minuta'],
+            mm: ['minut', 'minuta', 'minuta'],
+            h: ['jedan sat', 'jednog sata'],
+            hh: ['sat', 'sata', 'sati'],
+            d: ['jedan dan', 'jednog dana'],
+            dd: ['dan', 'dana', 'dana'],
+            M: ['jedan mesec', 'jednog meseca'],
+            MM: ['mesec', 'meseca', 'meseci'],
+            y: ['jednu godinu', 'jedne godine'],
+            yy: ['godinu', 'godine', 'godina'],
+        },
+        correctGrammaticalCase: function (number, wordKey) {
+            if (
+                number % 10 >= 1 &&
+                number % 10 <= 4 &&
+                (number % 100 < 10 || number % 100 >= 20)
+            ) {
+                return number % 10 === 1 ? wordKey[0] : wordKey[1];
+            }
+            return wordKey[2];
+        },
+        translate: function (number, withoutSuffix, key, isFuture) {
+            var wordKey = translator$2.words[key],
+                word;
+
+            if (key.length === 1) {
+                // Nominativ
+                if (key === 'y' && withoutSuffix) return 'jedna godina';
+                return isFuture || withoutSuffix ? wordKey[0] : wordKey[1];
+            }
+
+            word = translator$2.correctGrammaticalCase(number, wordKey);
+            // Nominativ
+            if (key === 'yy' && withoutSuffix && word === 'godinu') {
+                return number + ' godina';
+            }
+
+            return number + ' ' + word;
+        },
+    };
+
+    hooks.defineLocale('sr', {
+        months: 'januar_februar_mart_april_maj_jun_jul_avgust_septembar_oktobar_novembar_decembar'.split(
+            '_'
+        ),
+        monthsShort:
+            'jan._feb._mar._apr._maj_jun_jul_avg._sep._okt._nov._dec.'.split('_'),
+        monthsParseExact: true,
+        weekdays: 'nedelja_ponedeljak_utorak_sreda_četvrtak_petak_subota'.split(
+            '_'
+        ),
+        weekdaysShort: 'ned._pon._uto._sre._čet._pet._sub.'.split('_'),
+        weekdaysMin: 'ne_po_ut_sr_če_pe_su'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'D. M. YYYY.',
+            LL: 'D. MMMM YYYY.',
+            LLL: 'D. MMMM YYYY. H:mm',
+            LLLL: 'dddd, D. MMMM YYYY. H:mm',
+        },
+        calendar: {
+            sameDay: '[danas u] LT',
+            nextDay: '[sutra u] LT',
+            nextWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                        return '[u] [nedelju] [u] LT';
+                    case 3:
+                        return '[u] [sredu] [u] LT';
+                    case 6:
+                        return '[u] [subotu] [u] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[u] dddd [u] LT';
+                }
+            },
+            lastDay: '[juče u] LT',
+            lastWeek: function () {
+                var lastWeekDays = [
+                    '[prošle] [nedelje] [u] LT',
+                    '[prošlog] [ponedeljka] [u] LT',
+                    '[prošlog] [utorka] [u] LT',
+                    '[prošle] [srede] [u] LT',
+                    '[prošlog] [četvrtka] [u] LT',
+                    '[prošlog] [petka] [u] LT',
+                    '[prošle] [subote] [u] LT',
+                ];
+                return lastWeekDays[this.day()];
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'za %s',
+            past: 'pre %s',
+            s: 'nekoliko sekundi',
+            ss: translator$2.translate,
+            m: translator$2.translate,
+            mm: translator$2.translate,
+            h: translator$2.translate,
+            hh: translator$2.translate,
+            d: translator$2.translate,
+            dd: translator$2.translate,
+            M: translator$2.translate,
+            MM: translator$2.translate,
+            y: translator$2.translate,
+            yy: translator$2.translate,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('ss', {
+        months: "Bhimbidvwane_Indlovana_Indlov'lenkhulu_Mabasa_Inkhwekhweti_Inhlaba_Kholwane_Ingci_Inyoni_Imphala_Lweti_Ingongoni".split(
+            '_'
+        ),
+        monthsShort: 'Bhi_Ina_Inu_Mab_Ink_Inh_Kho_Igc_Iny_Imp_Lwe_Igo'.split('_'),
+        weekdays:
+            'Lisontfo_Umsombuluko_Lesibili_Lesitsatfu_Lesine_Lesihlanu_Umgcibelo'.split(
+                '_'
+            ),
+        weekdaysShort: 'Lis_Umb_Lsb_Les_Lsi_Lsh_Umg'.split('_'),
+        weekdaysMin: 'Li_Us_Lb_Lt_Ls_Lh_Ug'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY h:mm A',
+            LLLL: 'dddd, D MMMM YYYY h:mm A',
+        },
+        calendar: {
+            sameDay: '[Namuhla nga] LT',
+            nextDay: '[Kusasa nga] LT',
+            nextWeek: 'dddd [nga] LT',
+            lastDay: '[Itolo nga] LT',
+            lastWeek: 'dddd [leliphelile] [nga] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'nga %s',
+            past: 'wenteka nga %s',
+            s: 'emizuzwana lomcane',
+            ss: '%d mzuzwana',
+            m: 'umzuzu',
+            mm: '%d emizuzu',
+            h: 'lihora',
+            hh: '%d emahora',
+            d: 'lilanga',
+            dd: '%d emalanga',
+            M: 'inyanga',
+            MM: '%d tinyanga',
+            y: 'umnyaka',
+            yy: '%d iminyaka',
+        },
+        meridiemParse: /ekuseni|emini|entsambama|ebusuku/,
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 11) {
+                return 'ekuseni';
+            } else if (hours < 15) {
+                return 'emini';
+            } else if (hours < 19) {
+                return 'entsambama';
+            } else {
+                return 'ebusuku';
+            }
+        },
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'ekuseni') {
+                return hour;
+            } else if (meridiem === 'emini') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === 'entsambama' || meridiem === 'ebusuku') {
+                if (hour === 0) {
+                    return 0;
+                }
+                return hour + 12;
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}/,
+        ordinal: '%d',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('sv', {
+        months: 'januari_februari_mars_april_maj_juni_juli_augusti_september_oktober_november_december'.split(
+            '_'
+        ),
+        monthsShort: 'jan_feb_mar_apr_maj_jun_jul_aug_sep_okt_nov_dec'.split('_'),
+        weekdays: 'söndag_måndag_tisdag_onsdag_torsdag_fredag_lördag'.split('_'),
+        weekdaysShort: 'sön_mån_tis_ons_tor_fre_lör'.split('_'),
+        weekdaysMin: 'sö_må_ti_on_to_fr_lö'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY-MM-DD',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY [kl.] HH:mm',
+            LLLL: 'dddd D MMMM YYYY [kl.] HH:mm',
+            lll: 'D MMM YYYY HH:mm',
+            llll: 'ddd D MMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Idag] LT',
+            nextDay: '[Imorgon] LT',
+            lastDay: '[Igår] LT',
+            nextWeek: '[På] dddd LT',
+            lastWeek: '[I] dddd[s] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'om %s',
+            past: 'för %s sedan',
+            s: 'några sekunder',
+            ss: '%d sekunder',
+            m: 'en minut',
+            mm: '%d minuter',
+            h: 'en timme',
+            hh: '%d timmar',
+            d: 'en dag',
+            dd: '%d dagar',
+            M: 'en månad',
+            MM: '%d månader',
+            y: 'ett år',
+            yy: '%d år',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(\:e|\:a)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? ':e'
+                        : b === 1
+                          ? ':a'
+                          : b === 2
+                            ? ':a'
+                            : b === 3
+                              ? ':e'
+                              : ':e';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('sw', {
+        months: 'Januari_Februari_Machi_Aprili_Mei_Juni_Julai_Agosti_Septemba_Oktoba_Novemba_Desemba'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mac_Apr_Mei_Jun_Jul_Ago_Sep_Okt_Nov_Des'.split('_'),
+        weekdays:
+            'Jumapili_Jumatatu_Jumanne_Jumatano_Alhamisi_Ijumaa_Jumamosi'.split(
+                '_'
+            ),
+        weekdaysShort: 'Jpl_Jtat_Jnne_Jtan_Alh_Ijm_Jmos'.split('_'),
+        weekdaysMin: 'J2_J3_J4_J5_Al_Ij_J1'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'hh:mm A',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[leo saa] LT',
+            nextDay: '[kesho saa] LT',
+            nextWeek: '[wiki ijayo] dddd [saat] LT',
+            lastDay: '[jana] LT',
+            lastWeek: '[wiki iliyopita] dddd [saat] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s baadaye',
+            past: 'tokea %s',
+            s: 'hivi punde',
+            ss: 'sekunde %d',
+            m: 'dakika moja',
+            mm: 'dakika %d',
+            h: 'saa limoja',
+            hh: 'masaa %d',
+            d: 'siku moja',
+            dd: 'siku %d',
+            M: 'mwezi mmoja',
+            MM: 'miezi %d',
+            y: 'mwaka mmoja',
+            yy: 'miaka %d',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$h = {
+            1: '௧',
+            2: '௨',
+            3: '௩',
+            4: '௪',
+            5: '௫',
+            6: '௬',
+            7: '௭',
+            8: '௮',
+            9: '௯',
+            0: '௦',
+        },
+        numberMap$g = {
+            '௧': '1',
+            '௨': '2',
+            '௩': '3',
+            '௪': '4',
+            '௫': '5',
+            '௬': '6',
+            '௭': '7',
+            '௮': '8',
+            '௯': '9',
+            '௦': '0',
+        };
+
+    hooks.defineLocale('ta', {
+        months: 'ஜனவரி_பிப்ரவரி_மார்ச்_ஏப்ரல்_மே_ஜூன்_ஜூலை_ஆகஸ்ட்_செப்டெம்பர்_அக்டோபர்_நவம்பர்_டிசம்பர்'.split(
+            '_'
+        ),
+        monthsShort:
+            'ஜனவரி_பிப்ரவரி_மார்ச்_ஏப்ரல்_மே_ஜூன்_ஜூலை_ஆகஸ்ட்_செப்டெம்பர்_அக்டோபர்_நவம்பர்_டிசம்பர்'.split(
+                '_'
+            ),
+        weekdays:
+            'ஞாயிற்றுக்கிழமை_திங்கட்கிழமை_செவ்வாய்கிழமை_புதன்கிழமை_வியாழக்கிழமை_வெள்ளிக்கிழமை_சனிக்கிழமை'.split(
+                '_'
+            ),
+        weekdaysShort: 'ஞாயிறு_திங்கள்_செவ்வாய்_புதன்_வியாழன்_வெள்ளி_சனி'.split(
+            '_'
+        ),
+        weekdaysMin: 'ஞா_தி_செ_பு_வி_வெ_ச'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, HH:mm',
+            LLLL: 'dddd, D MMMM YYYY, HH:mm',
+        },
+        calendar: {
+            sameDay: '[இன்று] LT',
+            nextDay: '[நாளை] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[நேற்று] LT',
+            lastWeek: '[கடந்த வாரம்] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s இல்',
+            past: '%s முன்',
+            s: 'ஒரு சில விநாடிகள்',
+            ss: '%d விநாடிகள்',
+            m: 'ஒரு நிமிடம்',
+            mm: '%d நிமிடங்கள்',
+            h: 'ஒரு மணி நேரம்',
+            hh: '%d மணி நேரம்',
+            d: 'ஒரு நாள்',
+            dd: '%d நாட்கள்',
+            M: 'ஒரு மாதம்',
+            MM: '%d மாதங்கள்',
+            y: 'ஒரு வருடம்',
+            yy: '%d ஆண்டுகள்',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}வது/,
+        ordinal: function (number) {
+            return number + 'வது';
+        },
+        preparse: function (string) {
+            return string.replace(/[௧௨௩௪௫௬௭௮௯௦]/g, function (match) {
+                return numberMap$g[match];
+            });
+        },
+        postformat: function (string) {
+            return string.replace(/\d/g, function (match) {
+                return symbolMap$h[match];
+            });
+        },
+        // refer http://ta.wikipedia.org/s/1er1
+        meridiemParse: /யாமம்|வைகறை|காலை|நண்பகல்|எற்பாடு|மாலை/,
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 2) {
+                return ' யாமம்';
+            } else if (hour < 6) {
+                return ' வைகறை'; // வைகறை
+            } else if (hour < 10) {
+                return ' காலை'; // காலை
+            } else if (hour < 14) {
+                return ' நண்பகல்'; // நண்பகல்
+            } else if (hour < 18) {
+                return ' எற்பாடு'; // எற்பாடு
+            } else if (hour < 22) {
+                return ' மாலை'; // மாலை
+            } else {
+                return ' யாமம்';
+            }
+        },
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'யாமம்') {
+                return hour < 2 ? hour : hour + 12;
+            } else if (meridiem === 'வைகறை' || meridiem === 'காலை') {
+                return hour;
+            } else if (meridiem === 'நண்பகல்') {
+                return hour >= 10 ? hour : hour + 12;
+            } else {
+                return hour + 12;
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('te', {
+        months: 'జనవరి_ఫిబ్రవరి_మార్చి_ఏప్రిల్_మే_జూన్_జులై_ఆగస్టు_సెప్టెంబర్_అక్టోబర్_నవంబర్_డిసెంబర్'.split(
+            '_'
+        ),
+        monthsShort:
+            'జన._ఫిబ్ర._మార్చి_ఏప్రి._మే_జూన్_జులై_ఆగ._సెప్._అక్టో._నవ._డిసె.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays:
+            'ఆదివారం_సోమవారం_మంగళవారం_బుధవారం_గురువారం_శుక్రవారం_శనివారం'.split(
+                '_'
+            ),
+        weekdaysShort: 'ఆది_సోమ_మంగళ_బుధ_గురు_శుక్ర_శని'.split('_'),
+        weekdaysMin: 'ఆ_సో_మం_బు_గు_శు_శ'.split('_'),
+        longDateFormat: {
+            LT: 'A h:mm',
+            LTS: 'A h:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY, A h:mm',
+            LLLL: 'dddd, D MMMM YYYY, A h:mm',
+        },
+        calendar: {
+            sameDay: '[నేడు] LT',
+            nextDay: '[రేపు] LT',
+            nextWeek: 'dddd, LT',
+            lastDay: '[నిన్న] LT',
+            lastWeek: '[గత] dddd, LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s లో',
+            past: '%s క్రితం',
+            s: 'కొన్ని క్షణాలు',
+            ss: '%d సెకన్లు',
+            m: 'ఒక నిమిషం',
+            mm: '%d నిమిషాలు',
+            h: 'ఒక గంట',
+            hh: '%d గంటలు',
+            d: 'ఒక రోజు',
+            dd: '%d రోజులు',
+            M: 'ఒక నెల',
+            MM: '%d నెలలు',
+            y: 'ఒక సంవత్సరం',
+            yy: '%d సంవత్సరాలు',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}వ/,
+        ordinal: '%dవ',
+        meridiemParse: /రాత్రి|ఉదయం|మధ్యాహ్నం|సాయంత్రం/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'రాత్రి') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'ఉదయం') {
+                return hour;
+            } else if (meridiem === 'మధ్యాహ్నం') {
+                return hour >= 10 ? hour : hour + 12;
+            } else if (meridiem === 'సాయంత్రం') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'రాత్రి';
+            } else if (hour < 10) {
+                return 'ఉదయం';
+            } else if (hour < 17) {
+                return 'మధ్యాహ్నం';
+            } else if (hour < 20) {
+                return 'సాయంత్రం';
+            } else {
+                return 'రాత్రి';
+            }
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('tet', {
+        months: 'Janeiru_Fevereiru_Marsu_Abril_Maiu_Juñu_Jullu_Agustu_Setembru_Outubru_Novembru_Dezembru'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Fev_Mar_Abr_Mai_Jun_Jul_Ago_Set_Out_Nov_Dez'.split('_'),
+        weekdays: 'Domingu_Segunda_Tersa_Kuarta_Kinta_Sesta_Sabadu'.split('_'),
+        weekdaysShort: 'Dom_Seg_Ters_Kua_Kint_Sest_Sab'.split('_'),
+        weekdaysMin: 'Do_Seg_Te_Ku_Ki_Ses_Sa'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Ohin iha] LT',
+            nextDay: '[Aban iha] LT',
+            nextWeek: 'dddd [iha] LT',
+            lastDay: '[Horiseik iha] LT',
+            lastWeek: 'dddd [semana kotuk] [iha] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'iha %s',
+            past: '%s liuba',
+            s: 'segundu balun',
+            ss: 'segundu %d',
+            m: 'minutu ida',
+            mm: 'minutu %d',
+            h: 'oras ida',
+            hh: 'oras %d',
+            d: 'loron ida',
+            dd: 'loron %d',
+            M: 'fulan ida',
+            MM: 'fulan %d',
+            y: 'tinan ida',
+            yy: 'tinan %d',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var suffixes$3 = {
+        0: '-ум',
+        1: '-ум',
+        2: '-юм',
+        3: '-юм',
+        4: '-ум',
+        5: '-ум',
+        6: '-ум',
+        7: '-ум',
+        8: '-ум',
+        9: '-ум',
+        10: '-ум',
+        12: '-ум',
+        13: '-ум',
+        20: '-ум',
+        30: '-юм',
+        40: '-ум',
+        50: '-ум',
+        60: '-ум',
+        70: '-ум',
+        80: '-ум',
+        90: '-ум',
+        100: '-ум',
+    };
+
+    hooks.defineLocale('tg', {
+        months: {
+            format: 'январи_феврали_марти_апрели_майи_июни_июли_августи_сентябри_октябри_ноябри_декабри'.split(
+                '_'
+            ),
+            standalone:
+                'январ_феврал_март_апрел_май_июн_июл_август_сентябр_октябр_ноябр_декабр'.split(
+                    '_'
+                ),
+        },
+        monthsShort: 'янв_фев_мар_апр_май_июн_июл_авг_сен_окт_ноя_дек'.split('_'),
+        weekdays: 'якшанбе_душанбе_сешанбе_чоршанбе_панҷшанбе_ҷумъа_шанбе'.split(
+            '_'
+        ),
+        weekdaysShort: 'яшб_дшб_сшб_чшб_пшб_ҷум_шнб'.split('_'),
+        weekdaysMin: 'яш_дш_сш_чш_пш_ҷм_шб'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Имрӯз соати] LT',
+            nextDay: '[Фардо соати] LT',
+            lastDay: '[Дирӯз соати] LT',
+            nextWeek: 'dddd[и] [ҳафтаи оянда соати] LT',
+            lastWeek: 'dddd[и] [ҳафтаи гузашта соати] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'баъди %s',
+            past: '%s пеш',
+            s: 'якчанд сония',
+            m: 'як дақиқа',
+            mm: '%d дақиқа',
+            h: 'як соат',
+            hh: '%d соат',
+            d: 'як рӯз',
+            dd: '%d рӯз',
+            M: 'як моҳ',
+            MM: '%d моҳ',
+            y: 'як сол',
+            yy: '%d сол',
+        },
+        meridiemParse: /шаб|субҳ|рӯз|бегоҳ/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === 'шаб') {
+                return hour < 4 ? hour : hour + 12;
+            } else if (meridiem === 'субҳ') {
+                return hour;
+            } else if (meridiem === 'рӯз') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === 'бегоҳ') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'шаб';
+            } else if (hour < 11) {
+                return 'субҳ';
+            } else if (hour < 16) {
+                return 'рӯз';
+            } else if (hour < 19) {
+                return 'бегоҳ';
+            } else {
+                return 'шаб';
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(ум|юм)/,
+        ordinal: function (number) {
+            var a = number % 10,
+                b = number >= 100 ? 100 : null;
+            return number + (suffixes$3[number] || suffixes$3[a] || suffixes$3[b]);
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 1th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('th', {
+        months: 'มกราคม_กุมภาพันธ์_มีนาคม_เมษายน_พฤษภาคม_มิถุนายน_กรกฎาคม_สิงหาคม_กันยายน_ตุลาคม_พฤศจิกายน_ธันวาคม'.split(
+            '_'
+        ),
+        monthsShort:
+            'ม.ค._ก.พ._มี.ค._เม.ย._พ.ค._มิ.ย._ก.ค._ส.ค._ก.ย._ต.ค._พ.ย._ธ.ค.'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'อาทิตย์_จันทร์_อังคาร_พุธ_พฤหัสบดี_ศุกร์_เสาร์'.split('_'),
+        weekdaysShort: 'อาทิตย์_จันทร์_อังคาร_พุธ_พฤหัส_ศุกร์_เสาร์'.split('_'), // yes, three characters difference
+        weekdaysMin: 'อา._จ._อ._พ._พฤ._ศ._ส.'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY เวลา H:mm',
+            LLLL: 'วันddddที่ D MMMM YYYY เวลา H:mm',
+        },
+        meridiemParse: /ก่อนเที่ยง|หลังเที่ยง/,
+        isPM: function (input) {
+            return input === 'หลังเที่ยง';
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ก่อนเที่ยง';
+            } else {
+                return 'หลังเที่ยง';
+            }
+        },
+        calendar: {
+            sameDay: '[วันนี้ เวลา] LT',
+            nextDay: '[พรุ่งนี้ เวลา] LT',
+            nextWeek: 'dddd[หน้า เวลา] LT',
+            lastDay: '[เมื่อวานนี้ เวลา] LT',
+            lastWeek: '[วัน]dddd[ที่แล้ว เวลา] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'อีก %s',
+            past: '%sที่แล้ว',
+            s: 'ไม่กี่วินาที',
+            ss: '%d วินาที',
+            m: '1 นาที',
+            mm: '%d นาที',
+            h: '1 ชั่วโมง',
+            hh: '%d ชั่วโมง',
+            d: '1 วัน',
+            dd: '%d วัน',
+            w: '1 สัปดาห์',
+            ww: '%d สัปดาห์',
+            M: '1 เดือน',
+            MM: '%d เดือน',
+            y: '1 ปี',
+            yy: '%d ปี',
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var suffixes$4 = {
+        1: "'inji",
+        5: "'inji",
+        8: "'inji",
+        70: "'inji",
+        80: "'inji",
+        2: "'nji",
+        7: "'nji",
+        20: "'nji",
+        50: "'nji",
+        3: "'ünji",
+        4: "'ünji",
+        100: "'ünji",
+        6: "'njy",
+        9: "'unjy",
+        10: "'unjy",
+        30: "'unjy",
+        60: "'ynjy",
+        90: "'ynjy",
+    };
+
+    hooks.defineLocale('tk', {
+        months: 'Ýanwar_Fewral_Mart_Aprel_Maý_Iýun_Iýul_Awgust_Sentýabr_Oktýabr_Noýabr_Dekabr'.split(
+            '_'
+        ),
+        monthsShort: 'Ýan_Few_Mar_Apr_Maý_Iýn_Iýl_Awg_Sen_Okt_Noý_Dek'.split('_'),
+        weekdays: 'Ýekşenbe_Duşenbe_Sişenbe_Çarşenbe_Penşenbe_Anna_Şenbe'.split(
+            '_'
+        ),
+        weekdaysShort: 'Ýek_Duş_Siş_Çar_Pen_Ann_Şen'.split('_'),
+        weekdaysMin: 'Ýk_Dş_Sş_Çr_Pn_An_Şn'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[bugün sagat] LT',
+            nextDay: '[ertir sagat] LT',
+            nextWeek: '[indiki] dddd [sagat] LT',
+            lastDay: '[düýn] LT',
+            lastWeek: '[geçen] dddd [sagat] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s soň',
+            past: '%s öň',
+            s: 'birnäçe sekunt',
+            m: 'bir minut',
+            mm: '%d minut',
+            h: 'bir sagat',
+            hh: '%d sagat',
+            d: 'bir gün',
+            dd: '%d gün',
+            M: 'bir aý',
+            MM: '%d aý',
+            y: 'bir ýyl',
+            yy: '%d ýyl',
+        },
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'Do':
+                case 'DD':
+                    return number;
+                default:
+                    if (number === 0) {
+                        // special case for zero
+                        return number + "'unjy";
+                    }
+                    var a = number % 10,
+                        b = (number % 100) - a,
+                        c = number >= 100 ? 100 : null;
+                    return number + (suffixes$4[a] || suffixes$4[b] || suffixes$4[c]);
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('tl-ph', {
+        months: 'Enero_Pebrero_Marso_Abril_Mayo_Hunyo_Hulyo_Agosto_Setyembre_Oktubre_Nobyembre_Disyembre'.split(
+            '_'
+        ),
+        monthsShort: 'Ene_Peb_Mar_Abr_May_Hun_Hul_Ago_Set_Okt_Nob_Dis'.split('_'),
+        weekdays: 'Linggo_Lunes_Martes_Miyerkules_Huwebes_Biyernes_Sabado'.split(
+            '_'
+        ),
+        weekdaysShort: 'Lin_Lun_Mar_Miy_Huw_Biy_Sab'.split('_'),
+        weekdaysMin: 'Li_Lu_Ma_Mi_Hu_Bi_Sab'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'MM/D/YYYY',
+            LL: 'MMMM D, YYYY',
+            LLL: 'MMMM D, YYYY HH:mm',
+            LLLL: 'dddd, MMMM DD, YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: 'LT [ngayong araw]',
+            nextDay: '[Bukas ng] LT',
+            nextWeek: 'LT [sa susunod na] dddd',
+            lastDay: 'LT [kahapon]',
+            lastWeek: 'LT [noong nakaraang] dddd',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'sa loob ng %s',
+            past: '%s ang nakalipas',
+            s: 'ilang segundo',
+            ss: '%d segundo',
+            m: 'isang minuto',
+            mm: '%d minuto',
+            h: 'isang oras',
+            hh: '%d oras',
+            d: 'isang araw',
+            dd: '%d araw',
+            M: 'isang buwan',
+            MM: '%d buwan',
+            y: 'isang taon',
+            yy: '%d taon',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}/,
+        ordinal: function (number) {
+            return number;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var numbersNouns = 'pagh_wa’_cha’_wej_loS_vagh_jav_Soch_chorgh_Hut'.split('_');
+
+    function translateFuture(output) {
+        var time = output;
+        time =
+            output.indexOf('jaj') !== -1
+                ? time.slice(0, -3) + 'leS'
+                : output.indexOf('jar') !== -1
+                  ? time.slice(0, -3) + 'waQ'
+                  : output.indexOf('DIS') !== -1
+                    ? time.slice(0, -3) + 'nem'
+                    : time + ' pIq';
+        return time;
+    }
+
+    function translatePast(output) {
+        var time = output;
+        time =
+            output.indexOf('jaj') !== -1
+                ? time.slice(0, -3) + 'Hu’'
+                : output.indexOf('jar') !== -1
+                  ? time.slice(0, -3) + 'wen'
+                  : output.indexOf('DIS') !== -1
+                    ? time.slice(0, -3) + 'ben'
+                    : time + ' ret';
+        return time;
+    }
+
+    function translate$a(number, withoutSuffix, string, isFuture) {
+        var numberNoun = numberAsNoun(number);
+        switch (string) {
+            case 'ss':
+                return numberNoun + ' lup';
+            case 'mm':
+                return numberNoun + ' tup';
+            case 'hh':
+                return numberNoun + ' rep';
+            case 'dd':
+                return numberNoun + ' jaj';
+            case 'MM':
+                return numberNoun + ' jar';
+            case 'yy':
+                return numberNoun + ' DIS';
+        }
+    }
+
+    function numberAsNoun(number) {
+        var hundred = Math.floor((number % 1000) / 100),
+            ten = Math.floor((number % 100) / 10),
+            one = number % 10,
+            word = '';
+        if (hundred > 0) {
+            word += numbersNouns[hundred] + 'vatlh';
+        }
+        if (ten > 0) {
+            word += (word !== '' ? ' ' : '') + numbersNouns[ten] + 'maH';
+        }
+        if (one > 0) {
+            word += (word !== '' ? ' ' : '') + numbersNouns[one];
+        }
+        return word === '' ? 'pagh' : word;
+    }
+
+    hooks.defineLocale('tlh', {
+        months: 'tera’ jar wa’_tera’ jar cha’_tera’ jar wej_tera’ jar loS_tera’ jar vagh_tera’ jar jav_tera’ jar Soch_tera’ jar chorgh_tera’ jar Hut_tera’ jar wa’maH_tera’ jar wa’maH wa’_tera’ jar wa’maH cha’'.split(
+            '_'
+        ),
+        monthsShort:
+            'jar wa’_jar cha’_jar wej_jar loS_jar vagh_jar jav_jar Soch_jar chorgh_jar Hut_jar wa’maH_jar wa’maH wa’_jar wa’maH cha’'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'lojmItjaj_DaSjaj_povjaj_ghItlhjaj_loghjaj_buqjaj_ghInjaj'.split(
+            '_'
+        ),
+        weekdaysShort:
+            'lojmItjaj_DaSjaj_povjaj_ghItlhjaj_loghjaj_buqjaj_ghInjaj'.split('_'),
+        weekdaysMin:
+            'lojmItjaj_DaSjaj_povjaj_ghItlhjaj_loghjaj_buqjaj_ghInjaj'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[DaHjaj] LT',
+            nextDay: '[wa’leS] LT',
+            nextWeek: 'LLL',
+            lastDay: '[wa’Hu’] LT',
+            lastWeek: 'LLL',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: translateFuture,
+            past: translatePast,
+            s: 'puS lup',
+            ss: translate$a,
+            m: 'wa’ tup',
+            mm: translate$a,
+            h: 'wa’ rep',
+            hh: translate$a,
+            d: 'wa’ jaj',
+            dd: translate$a,
+            M: 'wa’ jar',
+            MM: translate$a,
+            y: 'wa’ DIS',
+            yy: translate$a,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var suffixes$5 = {
+        1: "'inci",
+        5: "'inci",
+        8: "'inci",
+        70: "'inci",
+        80: "'inci",
+        2: "'nci",
+        7: "'nci",
+        20: "'nci",
+        50: "'nci",
+        3: "'üncü",
+        4: "'üncü",
+        100: "'üncü",
+        6: "'ncı",
+        9: "'uncu",
+        10: "'uncu",
+        30: "'uncu",
+        60: "'ıncı",
+        90: "'ıncı",
+    };
+
+    hooks.defineLocale('tr', {
+        months: 'Ocak_Şubat_Mart_Nisan_Mayıs_Haziran_Temmuz_Ağustos_Eylül_Ekim_Kasım_Aralık'.split(
+            '_'
+        ),
+        monthsShort: 'Oca_Şub_Mar_Nis_May_Haz_Tem_Ağu_Eyl_Eki_Kas_Ara'.split('_'),
+        weekdays: 'Pazar_Pazartesi_Salı_Çarşamba_Perşembe_Cuma_Cumartesi'.split(
+            '_'
+        ),
+        weekdaysShort: 'Paz_Pzt_Sal_Çar_Per_Cum_Cmt'.split('_'),
+        weekdaysMin: 'Pz_Pt_Sa_Ça_Pe_Cu_Ct'.split('_'),
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 12) {
+                return isLower ? 'öö' : 'ÖÖ';
+            } else {
+                return isLower ? 'ös' : 'ÖS';
+            }
+        },
+        meridiemParse: /öö|ÖÖ|ös|ÖS/,
+        isPM: function (input) {
+            return input === 'ös' || input === 'ÖS';
+        },
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[bugün saat] LT',
+            nextDay: '[yarın saat] LT',
+            nextWeek: '[gelecek] dddd [saat] LT',
+            lastDay: '[dün] LT',
+            lastWeek: '[geçen] dddd [saat] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s sonra',
+            past: '%s önce',
+            s: 'birkaç saniye',
+            ss: '%d saniye',
+            m: 'bir dakika',
+            mm: '%d dakika',
+            h: 'bir saat',
+            hh: '%d saat',
+            d: 'bir gün',
+            dd: '%d gün',
+            w: 'bir hafta',
+            ww: '%d hafta',
+            M: 'bir ay',
+            MM: '%d ay',
+            y: 'bir yıl',
+            yy: '%d yıl',
+        },
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'Do':
+                case 'DD':
+                    return number;
+                default:
+                    if (number === 0) {
+                        // special case for zero
+                        return number + "'ıncı";
+                    }
+                    var a = number % 10,
+                        b = (number % 100) - a,
+                        c = number >= 100 ? 100 : null;
+                    return number + (suffixes$5[a] || suffixes$5[b] || suffixes$5[c]);
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    // After the year there should be a slash and the amount of years since December 26, 1979 in Roman numerals.
+    // This is currently too difficult (maybe even impossible) to add.
+    hooks.defineLocale('tzl', {
+        months: 'Januar_Fevraglh_Març_Avrïu_Mai_Gün_Julia_Guscht_Setemvar_Listopäts_Noemvar_Zecemvar'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Fev_Mar_Avr_Mai_Gün_Jul_Gus_Set_Lis_Noe_Zec'.split('_'),
+        weekdays: 'Súladi_Lúneçi_Maitzi_Márcuri_Xhúadi_Viénerçi_Sáturi'.split('_'),
+        weekdaysShort: 'Súl_Lún_Mai_Már_Xhú_Vié_Sát'.split('_'),
+        weekdaysMin: 'Sú_Lú_Ma_Má_Xh_Vi_Sá'.split('_'),
+        longDateFormat: {
+            LT: 'HH.mm',
+            LTS: 'HH.mm.ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D. MMMM [dallas] YYYY',
+            LLL: 'D. MMMM [dallas] YYYY HH.mm',
+            LLLL: 'dddd, [li] D. MMMM [dallas] YYYY HH.mm',
+        },
+        meridiemParse: /d\'o|d\'a/i,
+        isPM: function (input) {
+            return "d'o" === input.toLowerCase();
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours > 11) {
+                return isLower ? "d'o" : "D'O";
+            } else {
+                return isLower ? "d'a" : "D'A";
+            }
+        },
+        calendar: {
+            sameDay: '[oxhi à] LT',
+            nextDay: '[demà à] LT',
+            nextWeek: 'dddd [à] LT',
+            lastDay: '[ieiri à] LT',
+            lastWeek: '[sür el] dddd [lasteu à] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'osprei %s',
+            past: 'ja%s',
+            s: processRelativeTime$a,
+            ss: processRelativeTime$a,
+            m: processRelativeTime$a,
+            mm: processRelativeTime$a,
+            h: processRelativeTime$a,
+            hh: processRelativeTime$a,
+            d: processRelativeTime$a,
+            dd: processRelativeTime$a,
+            M: processRelativeTime$a,
+            MM: processRelativeTime$a,
+            y: processRelativeTime$a,
+            yy: processRelativeTime$a,
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}\./,
+        ordinal: '%d.',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    function processRelativeTime$a(number, withoutSuffix, key, isFuture) {
+        var format = {
+            s: ['viensas secunds', "'iensas secunds"],
+            ss: [number + ' secunds', '' + number + ' secunds'],
+            m: ["'n míut", "'iens míut"],
+            mm: [number + ' míuts', '' + number + ' míuts'],
+            h: ["'n þora", "'iensa þora"],
+            hh: [number + ' þoras', '' + number + ' þoras'],
+            d: ["'n ziua", "'iensa ziua"],
+            dd: [number + ' ziuas', '' + number + ' ziuas'],
+            M: ["'n mes", "'iens mes"],
+            MM: [number + ' mesen', '' + number + ' mesen'],
+            y: ["'n ar", "'iens ar"],
+            yy: [number + ' ars', '' + number + ' ars'],
+        };
+        return isFuture
+            ? format[key][0]
+            : withoutSuffix
+              ? format[key][0]
+              : format[key][1];
+    }
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('tzm-latn', {
+        months: 'innayr_brˤayrˤ_marˤsˤ_ibrir_mayyw_ywnyw_ywlywz_ɣwšt_šwtanbir_ktˤwbrˤ_nwwanbir_dwjnbir'.split(
+            '_'
+        ),
+        monthsShort:
+            'innayr_brˤayrˤ_marˤsˤ_ibrir_mayyw_ywnyw_ywlywz_ɣwšt_šwtanbir_ktˤwbrˤ_nwwanbir_dwjnbir'.split(
+                '_'
+            ),
+        weekdays: 'asamas_aynas_asinas_akras_akwas_asimwas_asiḍyas'.split('_'),
+        weekdaysShort: 'asamas_aynas_asinas_akras_akwas_asimwas_asiḍyas'.split('_'),
+        weekdaysMin: 'asamas_aynas_asinas_akras_akwas_asimwas_asiḍyas'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[asdkh g] LT',
+            nextDay: '[aska g] LT',
+            nextWeek: 'dddd [g] LT',
+            lastDay: '[assant g] LT',
+            lastWeek: 'dddd [g] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'dadkh s yan %s',
+            past: 'yan %s',
+            s: 'imik',
+            ss: '%d imik',
+            m: 'minuḍ',
+            mm: '%d minuḍ',
+            h: 'saɛa',
+            hh: '%d tassaɛin',
+            d: 'ass',
+            dd: '%d ossan',
+            M: 'ayowr',
+            MM: '%d iyyirn',
+            y: 'asgas',
+            yy: '%d isgasn',
+        },
+        week: {
+            dow: 6, // Saturday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('tzm', {
+        months: 'ⵉⵏⵏⴰⵢⵔ_ⴱⵕⴰⵢⵕ_ⵎⴰⵕⵚ_ⵉⴱⵔⵉⵔ_ⵎⴰⵢⵢⵓ_ⵢⵓⵏⵢⵓ_ⵢⵓⵍⵢⵓⵣ_ⵖⵓⵛⵜ_ⵛⵓⵜⴰⵏⴱⵉⵔ_ⴽⵟⵓⴱⵕ_ⵏⵓⵡⴰⵏⴱⵉⵔ_ⴷⵓⵊⵏⴱⵉⵔ'.split(
+            '_'
+        ),
+        monthsShort:
+            'ⵉⵏⵏⴰⵢⵔ_ⴱⵕⴰⵢⵕ_ⵎⴰⵕⵚ_ⵉⴱⵔⵉⵔ_ⵎⴰⵢⵢⵓ_ⵢⵓⵏⵢⵓ_ⵢⵓⵍⵢⵓⵣ_ⵖⵓⵛⵜ_ⵛⵓⵜⴰⵏⴱⵉⵔ_ⴽⵟⵓⴱⵕ_ⵏⵓⵡⴰⵏⴱⵉⵔ_ⴷⵓⵊⵏⴱⵉⵔ'.split(
+                '_'
+            ),
+        weekdays: 'ⴰⵙⴰⵎⴰⵙ_ⴰⵢⵏⴰⵙ_ⴰⵙⵉⵏⴰⵙ_ⴰⴽⵔⴰⵙ_ⴰⴽⵡⴰⵙ_ⴰⵙⵉⵎⵡⴰⵙ_ⴰⵙⵉⴹⵢⴰⵙ'.split('_'),
+        weekdaysShort: 'ⴰⵙⴰⵎⴰⵙ_ⴰⵢⵏⴰⵙ_ⴰⵙⵉⵏⴰⵙ_ⴰⴽⵔⴰⵙ_ⴰⴽⵡⴰⵙ_ⴰⵙⵉⵎⵡⴰⵙ_ⴰⵙⵉⴹⵢⴰⵙ'.split('_'),
+        weekdaysMin: 'ⴰⵙⴰⵎⴰⵙ_ⴰⵢⵏⴰⵙ_ⴰⵙⵉⵏⴰⵙ_ⴰⴽⵔⴰⵙ_ⴰⴽⵡⴰⵙ_ⴰⵙⵉⵎⵡⴰⵙ_ⴰⵙⵉⴹⵢⴰⵙ'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[ⴰⵙⴷⵅ ⴴ] LT',
+            nextDay: '[ⴰⵙⴽⴰ ⴴ] LT',
+            nextWeek: 'dddd [ⴴ] LT',
+            lastDay: '[ⴰⵚⴰⵏⵜ ⴴ] LT',
+            lastWeek: 'dddd [ⴴ] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'ⴷⴰⴷⵅ ⵙ ⵢⴰⵏ %s',
+            past: 'ⵢⴰⵏ %s',
+            s: 'ⵉⵎⵉⴽ',
+            ss: '%d ⵉⵎⵉⴽ',
+            m: 'ⵎⵉⵏⵓⴺ',
+            mm: '%d ⵎⵉⵏⵓⴺ',
+            h: 'ⵙⴰⵄⴰ',
+            hh: '%d ⵜⴰⵙⵙⴰⵄⵉⵏ',
+            d: 'ⴰⵙⵙ',
+            dd: '%d oⵙⵙⴰⵏ',
+            M: 'ⴰⵢoⵓⵔ',
+            MM: '%d ⵉⵢⵢⵉⵔⵏ',
+            y: 'ⴰⵙⴳⴰⵙ',
+            yy: '%d ⵉⵙⴳⴰⵙⵏ',
+        },
+        week: {
+            dow: 6, // Saturday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('ug-cn', {
+        months: 'يانۋار_فېۋرال_مارت_ئاپرېل_ماي_ئىيۇن_ئىيۇل_ئاۋغۇست_سېنتەبىر_ئۆكتەبىر_نويابىر_دېكابىر'.split(
+            '_'
+        ),
+        monthsShort:
+            'يانۋار_فېۋرال_مارت_ئاپرېل_ماي_ئىيۇن_ئىيۇل_ئاۋغۇست_سېنتەبىر_ئۆكتەبىر_نويابىر_دېكابىر'.split(
+                '_'
+            ),
+        weekdays: 'يەكشەنبە_دۈشەنبە_سەيشەنبە_چارشەنبە_پەيشەنبە_جۈمە_شەنبە'.split(
+            '_'
+        ),
+        weekdaysShort: 'يە_دۈ_سە_چا_پە_جۈ_شە'.split('_'),
+        weekdaysMin: 'يە_دۈ_سە_چا_پە_جۈ_شە'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY-MM-DD',
+            LL: 'YYYY-يىلىM-ئاينىڭD-كۈنى',
+            LLL: 'YYYY-يىلىM-ئاينىڭD-كۈنى، HH:mm',
+            LLLL: 'dddd، YYYY-يىلىM-ئاينىڭD-كۈنى، HH:mm',
+        },
+        meridiemParse: /يېرىم كېچە|سەھەر|چۈشتىن بۇرۇن|چۈش|چۈشتىن كېيىن|كەچ/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (
+                meridiem === 'يېرىم كېچە' ||
+                meridiem === 'سەھەر' ||
+                meridiem === 'چۈشتىن بۇرۇن'
+            ) {
+                return hour;
+            } else if (meridiem === 'چۈشتىن كېيىن' || meridiem === 'كەچ') {
+                return hour + 12;
+            } else {
+                return hour >= 11 ? hour : hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            var hm = hour * 100 + minute;
+            if (hm < 600) {
+                return 'يېرىم كېچە';
+            } else if (hm < 900) {
+                return 'سەھەر';
+            } else if (hm < 1130) {
+                return 'چۈشتىن بۇرۇن';
+            } else if (hm < 1230) {
+                return 'چۈش';
+            } else if (hm < 1800) {
+                return 'چۈشتىن كېيىن';
+            } else {
+                return 'كەچ';
+            }
+        },
+        calendar: {
+            sameDay: '[بۈگۈن سائەت] LT',
+            nextDay: '[ئەتە سائەت] LT',
+            nextWeek: '[كېلەركى] dddd [سائەت] LT',
+            lastDay: '[تۆنۈگۈن] LT',
+            lastWeek: '[ئالدىنقى] dddd [سائەت] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s كېيىن',
+            past: '%s بۇرۇن',
+            s: 'نەچچە سېكونت',
+            ss: '%d سېكونت',
+            m: 'بىر مىنۇت',
+            mm: '%d مىنۇت',
+            h: 'بىر سائەت',
+            hh: '%d سائەت',
+            d: 'بىر كۈن',
+            dd: '%d كۈن',
+            M: 'بىر ئاي',
+            MM: '%d ئاي',
+            y: 'بىر يىل',
+            yy: '%d يىل',
+        },
+
+        dayOfMonthOrdinalParse: /\d{1,2}(-كۈنى|-ئاي|-ھەپتە)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'DDD':
+                    return number + '-كۈنى';
+                case 'w':
+                case 'W':
+                    return number + '-ھەپتە';
+                default:
+                    return number;
+            }
+        },
+        preparse: function (string) {
+            return string.replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string.replace(/,/g, '،');
+        },
+        week: {
+            // GB/T 7408-1994《数据元和交换格式·信息交换·日期和时间表示法》与ISO 8601:1988等效
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 1st is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function plural$6(word, num) {
+        var forms = word.split('_');
+        return num % 10 === 1 && num % 100 !== 11
+            ? forms[0]
+            : num % 10 >= 2 && num % 10 <= 4 && (num % 100 < 10 || num % 100 >= 20)
+              ? forms[1]
+              : forms[2];
+    }
+    function relativeTimeWithPlural$4(number, withoutSuffix, key) {
+        var format = {
+            ss: withoutSuffix ? 'секунда_секунди_секунд' : 'секунду_секунди_секунд',
+            mm: withoutSuffix ? 'хвилина_хвилини_хвилин' : 'хвилину_хвилини_хвилин',
+            hh: withoutSuffix ? 'година_години_годин' : 'годину_години_годин',
+            dd: 'день_дні_днів',
+            MM: 'місяць_місяці_місяців',
+            yy: 'рік_роки_років',
+        };
+        if (key === 'm') {
+            return withoutSuffix ? 'хвилина' : 'хвилину';
+        } else if (key === 'h') {
+            return withoutSuffix ? 'година' : 'годину';
+        } else {
+            return number + ' ' + plural$6(format[key], +number);
+        }
+    }
+    function weekdaysCaseReplace(m, format) {
+        var weekdays = {
+                nominative:
+                    'неділя_понеділок_вівторок_середа_четвер_п’ятниця_субота'.split(
+                        '_'
+                    ),
+                accusative:
+                    'неділю_понеділок_вівторок_середу_четвер_п’ятницю_суботу'.split(
+                        '_'
+                    ),
+                genitive:
+                    'неділі_понеділка_вівторка_середи_четверга_п’ятниці_суботи'.split(
+                        '_'
+                    ),
+            },
+            nounCase;
+
+        if (m === true) {
+            return weekdays['nominative']
+                .slice(1, 7)
+                .concat(weekdays['nominative'].slice(0, 1));
+        }
+        if (!m) {
+            return weekdays['nominative'];
+        }
+
+        nounCase = /(\[[ВвУу]\]) ?dddd/.test(format)
+            ? 'accusative'
+            : /\[?(?:минулої|наступної)? ?\] ?dddd/.test(format)
+              ? 'genitive'
+              : 'nominative';
+        return weekdays[nounCase][m.day()];
+    }
+    function processHoursFunction(str) {
+        return function () {
+            return str + 'о' + (this.hours() === 11 ? 'б' : '') + '] LT';
+        };
+    }
+
+    hooks.defineLocale('uk', {
+        months: {
+            format: 'січня_лютого_березня_квітня_травня_червня_липня_серпня_вересня_жовтня_листопада_грудня'.split(
+                '_'
+            ),
+            standalone:
+                'січень_лютий_березень_квітень_травень_червень_липень_серпень_вересень_жовтень_листопад_грудень'.split(
+                    '_'
+                ),
+        },
+        monthsShort: 'січ_лют_бер_квіт_трав_черв_лип_серп_вер_жовт_лист_груд'.split(
+            '_'
+        ),
+        weekdays: weekdaysCaseReplace,
+        weekdaysShort: 'нд_пн_вт_ср_чт_пт_сб'.split('_'),
+        weekdaysMin: 'нд_пн_вт_ср_чт_пт_сб'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY р.',
+            LLL: 'D MMMM YYYY р., HH:mm',
+            LLLL: 'dddd, D MMMM YYYY р., HH:mm',
+        },
+        calendar: {
+            sameDay: processHoursFunction('[Сьогодні '),
+            nextDay: processHoursFunction('[Завтра '),
+            lastDay: processHoursFunction('[Вчора '),
+            nextWeek: processHoursFunction('[У] dddd ['),
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                    case 3:
+                    case 5:
+                    case 6:
+                        return processHoursFunction('[Минулої] dddd [').call(this);
+                    case 1:
+                    case 2:
+                    case 4:
+                        return processHoursFunction('[Минулого] dddd [').call(this);
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'за %s',
+            past: '%s тому',
+            s: 'декілька секунд',
+            ss: relativeTimeWithPlural$4,
+            m: relativeTimeWithPlural$4,
+            mm: relativeTimeWithPlural$4,
+            h: 'годину',
+            hh: relativeTimeWithPlural$4,
+            d: 'день',
+            dd: relativeTimeWithPlural$4,
+            M: 'місяць',
+            MM: relativeTimeWithPlural$4,
+            y: 'рік',
+            yy: relativeTimeWithPlural$4,
+        },
+        // M. E.: those two are virtually unused but a user might want to implement them for his/her website for some reason
+        meridiemParse: /ночі|ранку|дня|вечора/,
+        isPM: function (input) {
+            return /^(дня|вечора)$/.test(input);
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'ночі';
+            } else if (hour < 12) {
+                return 'ранку';
+            } else if (hour < 17) {
+                return 'дня';
+            } else {
+                return 'вечора';
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(й|го)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'M':
+                case 'd':
+                case 'DDD':
+                case 'w':
+                case 'W':
+                    return number + '-й';
+                case 'D':
+                    return number + '-го';
+                default:
+                    return number;
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var months$b = [
+            'جنوری',
+            'فروری',
+            'مارچ',
+            'اپریل',
+            'مئی',
+            'جون',
+            'جولائی',
+            'اگست',
+            'ستمبر',
+            'اکتوبر',
+            'نومبر',
+            'دسمبر',
+        ],
+        days$2 = ['اتوار', 'پیر', 'منگل', 'بدھ', 'جمعرات', 'جمعہ', 'ہفتہ'];
+
+    hooks.defineLocale('ur', {
+        months: months$b,
+        monthsShort: months$b,
+        weekdays: days$2,
+        weekdaysShort: days$2,
+        weekdaysMin: days$2,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd، D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /صبح|شام/,
+        isPM: function (input) {
+            return 'شام' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'صبح';
+            }
+            return 'شام';
+        },
+        calendar: {
+            sameDay: '[آج بوقت] LT',
+            nextDay: '[کل بوقت] LT',
+            nextWeek: 'dddd [بوقت] LT',
+            lastDay: '[گذشتہ روز بوقت] LT',
+            lastWeek: '[گذشتہ] dddd [بوقت] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s بعد',
+            past: '%s قبل',
+            s: 'چند سیکنڈ',
+            ss: '%d سیکنڈ',
+            m: 'ایک منٹ',
+            mm: '%d منٹ',
+            h: 'ایک گھنٹہ',
+            hh: '%d گھنٹے',
+            d: 'ایک دن',
+            dd: '%d دن',
+            M: 'ایک ماہ',
+            MM: '%d ماہ',
+            y: 'ایک سال',
+            yy: '%d سال',
+        },
+        preparse: function (string) {
+            return string.replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string.replace(/,/g, '،');
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('uz-latn', {
+        months: 'Yanvar_Fevral_Mart_Aprel_May_Iyun_Iyul_Avgust_Sentabr_Oktabr_Noyabr_Dekabr'.split(
+            '_'
+        ),
+        monthsShort: 'Yan_Fev_Mar_Apr_May_Iyun_Iyul_Avg_Sen_Okt_Noy_Dek'.split('_'),
+        weekdays:
+            'Yakshanba_Dushanba_Seshanba_Chorshanba_Payshanba_Juma_Shanba'.split(
+                '_'
+            ),
+        weekdaysShort: 'Yak_Dush_Sesh_Chor_Pay_Jum_Shan'.split('_'),
+        weekdaysMin: 'Ya_Du_Se_Cho_Pa_Ju_Sha'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'D MMMM YYYY, dddd HH:mm',
+        },
+        calendar: {
+            sameDay: '[Bugun soat] LT [da]',
+            nextDay: '[Ertaga] LT [da]',
+            nextWeek: 'dddd [kuni soat] LT [da]',
+            lastDay: '[Kecha soat] LT [da]',
+            lastWeek: "[O'tgan] dddd [kuni soat] LT [da]",
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'Yaqin %s ichida',
+            past: 'Bir necha %s oldin',
+            s: 'soniya',
+            ss: '%d soniya',
+            m: 'bir daqiqa',
+            mm: '%d daqiqa',
+            h: 'bir soat',
+            hh: '%d soat',
+            d: 'bir kun',
+            dd: '%d kun',
+            M: 'bir oy',
+            MM: '%d oy',
+            y: 'bir yil',
+            yy: '%d yil',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('uz', {
+        months: 'январ_феврал_март_апрел_май_июн_июл_август_сентябр_октябр_ноябр_декабр'.split(
+            '_'
+        ),
+        monthsShort: 'янв_фев_мар_апр_май_июн_июл_авг_сен_окт_ноя_дек'.split('_'),
+        weekdays: 'Якшанба_Душанба_Сешанба_Чоршанба_Пайшанба_Жума_Шанба'.split('_'),
+        weekdaysShort: 'Якш_Душ_Сеш_Чор_Пай_Жум_Шан'.split('_'),
+        weekdaysMin: 'Як_Ду_Се_Чо_Па_Жу_Ша'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'D MMMM YYYY, dddd HH:mm',
+        },
+        calendar: {
+            sameDay: '[Бугун соат] LT [да]',
+            nextDay: '[Эртага] LT [да]',
+            nextWeek: 'dddd [куни соат] LT [да]',
+            lastDay: '[Кеча соат] LT [да]',
+            lastWeek: '[Утган] dddd [куни соат] LT [да]',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'Якин %s ичида',
+            past: 'Бир неча %s олдин',
+            s: 'фурсат',
+            ss: '%d фурсат',
+            m: 'бир дакика',
+            mm: '%d дакика',
+            h: 'бир соат',
+            hh: '%d соат',
+            d: 'бир кун',
+            dd: '%d кун',
+            M: 'бир ой',
+            MM: '%d ой',
+            y: 'бир йил',
+            yy: '%d йил',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('vi', {
+        months: 'tháng 1_tháng 2_tháng 3_tháng 4_tháng 5_tháng 6_tháng 7_tháng 8_tháng 9_tháng 10_tháng 11_tháng 12'.split(
+            '_'
+        ),
+        monthsShort:
+            'Thg 01_Thg 02_Thg 03_Thg 04_Thg 05_Thg 06_Thg 07_Thg 08_Thg 09_Thg 10_Thg 11_Thg 12'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays: 'chủ nhật_thứ hai_thứ ba_thứ tư_thứ năm_thứ sáu_thứ bảy'.split(
+            '_'
+        ),
+        weekdaysShort: 'CN_T2_T3_T4_T5_T6_T7'.split('_'),
+        weekdaysMin: 'CN_T2_T3_T4_T5_T6_T7'.split('_'),
+        weekdaysParseExact: true,
+        meridiemParse: /sa|ch/i,
+        isPM: function (input) {
+            return /^ch$/i.test(input);
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 12) {
+                return isLower ? 'sa' : 'SA';
+            } else {
+                return isLower ? 'ch' : 'CH';
+            }
+        },
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM [năm] YYYY',
+            LLL: 'D MMMM [năm] YYYY HH:mm',
+            LLLL: 'dddd, D MMMM [năm] YYYY HH:mm',
+            l: 'DD/M/YYYY',
+            ll: 'D MMM YYYY',
+            lll: 'D MMM YYYY HH:mm',
+            llll: 'ddd, D MMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Hôm nay lúc] LT',
+            nextDay: '[Ngày mai lúc] LT',
+            nextWeek: 'dddd [tuần tới lúc] LT',
+            lastDay: '[Hôm qua lúc] LT',
+            lastWeek: 'dddd [tuần trước lúc] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s tới',
+            past: '%s trước',
+            s: 'vài giây',
+            ss: '%d giây',
+            m: 'một phút',
+            mm: '%d phút',
+            h: 'một giờ',
+            hh: '%d giờ',
+            d: 'một ngày',
+            dd: '%d ngày',
+            w: 'một tuần',
+            ww: '%d tuần',
+            M: 'một tháng',
+            MM: '%d tháng',
+            y: 'một năm',
+            yy: '%d năm',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}/,
+        ordinal: function (number) {
+            return number;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('x-pseudo', {
+        months: 'J~áñúá~rý_F~ébrú~árý_~Márc~h_Áp~ríl_~Máý_~Júñé~_Júl~ý_Áú~gúst~_Sép~témb~ér_Ó~ctób~ér_Ñ~óvém~bér_~Décé~mbér'.split(
+            '_'
+        ),
+        monthsShort:
+            'J~áñ_~Féb_~Már_~Ápr_~Máý_~Júñ_~Júl_~Áúg_~Sép_~Óct_~Ñóv_~Déc'.split(
+                '_'
+            ),
+        monthsParseExact: true,
+        weekdays:
+            'S~úñdá~ý_Mó~ñdáý~_Túé~sdáý~_Wéd~ñésd~áý_T~húrs~dáý_~Fríd~áý_S~átúr~dáý'.split(
+                '_'
+            ),
+        weekdaysShort: 'S~úñ_~Móñ_~Túé_~Wéd_~Thú_~Frí_~Sát'.split('_'),
+        weekdaysMin: 'S~ú_Mó~_Tú_~Wé_T~h_Fr~_Sá'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[T~ódá~ý át] LT',
+            nextDay: '[T~ómó~rró~w át] LT',
+            nextWeek: 'dddd [át] LT',
+            lastDay: '[Ý~ést~érdá~ý át] LT',
+            lastWeek: '[L~ást] dddd [át] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'í~ñ %s',
+            past: '%s á~gó',
+            s: 'á ~féw ~sécó~ñds',
+            ss: '%d s~écóñ~ds',
+            m: 'á ~míñ~úté',
+            mm: '%d m~íñú~tés',
+            h: 'á~ñ hó~úr',
+            hh: '%d h~óúrs',
+            d: 'á ~dáý',
+            dd: '%d d~áýs',
+            M: 'á ~móñ~th',
+            MM: '%d m~óñt~hs',
+            y: 'á ~ýéár',
+            yy: '%d ý~éárs',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    ~~((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('yo', {
+        months: 'Sẹ́rẹ́_Èrèlè_Ẹrẹ̀nà_Ìgbé_Èbibi_Òkùdu_Agẹmo_Ògún_Owewe_Ọ̀wàrà_Bélú_Ọ̀pẹ̀̀'.split(
+            '_'
+        ),
+        monthsShort: 'Sẹ́r_Èrl_Ẹrn_Ìgb_Èbi_Òkù_Agẹ_Ògú_Owe_Ọ̀wà_Bél_Ọ̀pẹ̀̀'.split('_'),
+        weekdays: 'Àìkú_Ajé_Ìsẹ́gun_Ọjọ́rú_Ọjọ́bọ_Ẹtì_Àbámẹ́ta'.split('_'),
+        weekdaysShort: 'Àìk_Ajé_Ìsẹ́_Ọjr_Ọjb_Ẹtì_Àbá'.split('_'),
+        weekdaysMin: 'Àì_Aj_Ìs_Ọr_Ọb_Ẹt_Àb'.split('_'),
+        longDateFormat: {
+            LT: 'h:mm A',
+            LTS: 'h:mm:ss A',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY h:mm A',
+            LLLL: 'dddd, D MMMM YYYY h:mm A',
+        },
+        calendar: {
+            sameDay: '[Ònì ni] LT',
+            nextDay: '[Ọ̀la ni] LT',
+            nextWeek: "dddd [Ọsẹ̀ tón'bọ] [ni] LT",
+            lastDay: '[Àna ni] LT',
+            lastWeek: 'dddd [Ọsẹ̀ tólọ́] [ni] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'ní %s',
+            past: '%s kọjá',
+            s: 'ìsẹjú aayá die',
+            ss: 'aayá %d',
+            m: 'ìsẹjú kan',
+            mm: 'ìsẹjú %d',
+            h: 'wákati kan',
+            hh: 'wákati %d',
+            d: 'ọjọ́ kan',
+            dd: 'ọjọ́ %d',
+            M: 'osù kan',
+            MM: 'osù %d',
+            y: 'ọdún kan',
+            yy: 'ọdún %d',
+        },
+        dayOfMonthOrdinalParse: /ọjọ́\s\d{1,2}/,
+        ordinal: 'ọjọ́ %d',
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('zh-cn', {
+        months: '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.split(
+            '_'
+        ),
+        monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+            '_'
+        ),
+        weekdays: '星期日_星期一_星期二_星期三_星期四_星期五_星期六'.split('_'),
+        weekdaysShort: '周日_周一_周二_周三_周四_周五_周六'.split('_'),
+        weekdaysMin: '日_一_二_三_四_五_六'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY/MM/DD',
+            LL: 'YYYY年M月D日',
+            LLL: 'YYYY年M月D日Ah点mm分',
+            LLLL: 'YYYY年M月D日ddddAh点mm分',
+            l: 'YYYY/M/D',
+            ll: 'YYYY年M月D日',
+            lll: 'YYYY年M月D日 HH:mm',
+            llll: 'YYYY年M月D日dddd HH:mm',
+        },
+        meridiemParse: /凌晨|早上|上午|中午|下午|晚上/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === '凌晨' || meridiem === '早上' || meridiem === '上午') {
+                return hour;
+            } else if (meridiem === '下午' || meridiem === '晚上') {
+                return hour + 12;
+            } else {
+                // '中午'
+                return hour >= 11 ? hour : hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            var hm = hour * 100 + minute;
+            if (hm < 600) {
+                return '凌晨';
+            } else if (hm < 900) {
+                return '早上';
+            } else if (hm < 1130) {
+                return '上午';
+            } else if (hm < 1230) {
+                return '中午';
+            } else if (hm < 1800) {
+                return '下午';
+            } else {
+                return '晚上';
+            }
+        },
+        calendar: {
+            sameDay: '[今天]LT',
+            nextDay: '[明天]LT',
+            nextWeek: function (now) {
+                if (now.week() !== this.week()) {
+                    return '[下]dddLT';
+                } else {
+                    return '[本]dddLT';
+                }
+            },
+            lastDay: '[昨天]LT',
+            lastWeek: function (now) {
+                if (this.week() !== now.week()) {
+                    return '[上]dddLT';
+                } else {
+                    return '[本]dddLT';
+                }
+            },
+            sameElse: 'L',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(日|月|周)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'DDD':
+                    return number + '日';
+                case 'M':
+                    return number + '月';
+                case 'w':
+                case 'W':
+                    return number + '周';
+                default:
+                    return number;
+            }
+        },
+        relativeTime: {
+            future: '%s后',
+            past: '%s前',
+            s: '几秒',
+            ss: '%d 秒',
+            m: '1 分钟',
+            mm: '%d 分钟',
+            h: '1 小时',
+            hh: '%d 小时',
+            d: '1 天',
+            dd: '%d 天',
+            w: '1 周',
+            ww: '%d 周',
+            M: '1 个月',
+            MM: '%d 个月',
+            y: '1 年',
+            yy: '%d 年',
+        },
+        week: {
+            // GB/T 7408-1994《数据元和交换格式·信息交换·日期和时间表示法》与ISO 8601:1988等效
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('zh-hk', {
+        months: '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.split(
+            '_'
+        ),
+        monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+            '_'
+        ),
+        weekdays: '星期日_星期一_星期二_星期三_星期四_星期五_星期六'.split('_'),
+        weekdaysShort: '週日_週一_週二_週三_週四_週五_週六'.split('_'),
+        weekdaysMin: '日_一_二_三_四_五_六'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY/MM/DD',
+            LL: 'YYYY年M月D日',
+            LLL: 'YYYY年M月D日 HH:mm',
+            LLLL: 'YYYY年M月D日dddd HH:mm',
+            l: 'YYYY/M/D',
+            ll: 'YYYY年M月D日',
+            lll: 'YYYY年M月D日 HH:mm',
+            llll: 'YYYY年M月D日dddd HH:mm',
+        },
+        meridiemParse: /凌晨|早上|上午|中午|下午|晚上/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === '凌晨' || meridiem === '早上' || meridiem === '上午') {
+                return hour;
+            } else if (meridiem === '中午') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === '下午' || meridiem === '晚上') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            var hm = hour * 100 + minute;
+            if (hm < 600) {
+                return '凌晨';
+            } else if (hm < 900) {
+                return '早上';
+            } else if (hm < 1200) {
+                return '上午';
+            } else if (hm === 1200) {
+                return '中午';
+            } else if (hm < 1800) {
+                return '下午';
+            } else {
+                return '晚上';
+            }
+        },
+        calendar: {
+            sameDay: '[今天]LT',
+            nextDay: '[明天]LT',
+            nextWeek: '[下]ddddLT',
+            lastDay: '[昨天]LT',
+            lastWeek: '[上]ddddLT',
+            sameElse: 'L',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(日|月|週)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'DDD':
+                    return number + '日';
+                case 'M':
+                    return number + '月';
+                case 'w':
+                case 'W':
+                    return number + '週';
+                default:
+                    return number;
+            }
+        },
+        relativeTime: {
+            future: '%s後',
+            past: '%s前',
+            s: '幾秒',
+            ss: '%d 秒',
+            m: '1 分鐘',
+            mm: '%d 分鐘',
+            h: '1 小時',
+            hh: '%d 小時',
+            d: '1 天',
+            dd: '%d 天',
+            M: '1 個月',
+            MM: '%d 個月',
+            y: '1 年',
+            yy: '%d 年',
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('zh-mo', {
+        months: '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.split(
+            '_'
+        ),
+        monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+            '_'
+        ),
+        weekdays: '星期日_星期一_星期二_星期三_星期四_星期五_星期六'.split('_'),
+        weekdaysShort: '週日_週一_週二_週三_週四_週五_週六'.split('_'),
+        weekdaysMin: '日_一_二_三_四_五_六'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'YYYY年M月D日',
+            LLL: 'YYYY年M月D日 HH:mm',
+            LLLL: 'YYYY年M月D日dddd HH:mm',
+            l: 'D/M/YYYY',
+            ll: 'YYYY年M月D日',
+            lll: 'YYYY年M月D日 HH:mm',
+            llll: 'YYYY年M月D日dddd HH:mm',
+        },
+        meridiemParse: /凌晨|早上|上午|中午|下午|晚上/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === '凌晨' || meridiem === '早上' || meridiem === '上午') {
+                return hour;
+            } else if (meridiem === '中午') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === '下午' || meridiem === '晚上') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            var hm = hour * 100 + minute;
+            if (hm < 600) {
+                return '凌晨';
+            } else if (hm < 900) {
+                return '早上';
+            } else if (hm < 1130) {
+                return '上午';
+            } else if (hm < 1230) {
+                return '中午';
+            } else if (hm < 1800) {
+                return '下午';
+            } else {
+                return '晚上';
+            }
+        },
+        calendar: {
+            sameDay: '[今天] LT',
+            nextDay: '[明天] LT',
+            nextWeek: '[下]dddd LT',
+            lastDay: '[昨天] LT',
+            lastWeek: '[上]dddd LT',
+            sameElse: 'L',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(日|月|週)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'DDD':
+                    return number + '日';
+                case 'M':
+                    return number + '月';
+                case 'w':
+                case 'W':
+                    return number + '週';
+                default:
+                    return number;
+            }
+        },
+        relativeTime: {
+            future: '%s內',
+            past: '%s前',
+            s: '幾秒',
+            ss: '%d 秒',
+            m: '1 分鐘',
+            mm: '%d 分鐘',
+            h: '1 小時',
+            hh: '%d 小時',
+            d: '1 天',
+            dd: '%d 天',
+            M: '1 個月',
+            MM: '%d 個月',
+            y: '1 年',
+            yy: '%d 年',
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('zh-tw', {
+        months: '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.split(
+            '_'
+        ),
+        monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+            '_'
+        ),
+        weekdays: '星期日_星期一_星期二_星期三_星期四_星期五_星期六'.split('_'),
+        weekdaysShort: '週日_週一_週二_週三_週四_週五_週六'.split('_'),
+        weekdaysMin: '日_一_二_三_四_五_六'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'YYYY/MM/DD',
+            LL: 'YYYY年M月D日',
+            LLL: 'YYYY年M月D日 HH:mm',
+            LLLL: 'YYYY年M月D日dddd HH:mm',
+            l: 'YYYY/M/D',
+            ll: 'YYYY年M月D日',
+            lll: 'YYYY年M月D日 HH:mm',
+            llll: 'YYYY年M月D日dddd HH:mm',
+        },
+        meridiemParse: /凌晨|早上|上午|中午|下午|晚上/,
+        meridiemHour: function (hour, meridiem) {
+            if (hour === 12) {
+                hour = 0;
+            }
+            if (meridiem === '凌晨' || meridiem === '早上' || meridiem === '上午') {
+                return hour;
+            } else if (meridiem === '中午') {
+                return hour >= 11 ? hour : hour + 12;
+            } else if (meridiem === '下午' || meridiem === '晚上') {
+                return hour + 12;
+            }
+        },
+        meridiem: function (hour, minute, isLower) {
+            var hm = hour * 100 + minute;
+            if (hm < 600) {
+                return '凌晨';
+            } else if (hm < 900) {
+                return '早上';
+            } else if (hm < 1130) {
+                return '上午';
+            } else if (hm < 1230) {
+                return '中午';
+            } else if (hm < 1800) {
+                return '下午';
+            } else {
+                return '晚上';
+            }
+        },
+        calendar: {
+            sameDay: '[今天] LT',
+            nextDay: '[明天] LT',
+            nextWeek: '[下]dddd LT',
+            lastDay: '[昨天] LT',
+            lastWeek: '[上]dddd LT',
+            sameElse: 'L',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(日|月|週)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'd':
+                case 'D':
+                case 'DDD':
+                    return number + '日';
+                case 'M':
+                    return number + '月';
+                case 'w':
+                case 'W':
+                    return number + '週';
+                default:
+                    return number;
+            }
+        },
+        relativeTime: {
+            future: '%s後',
+            past: '%s前',
+            s: '幾秒',
+            ss: '%d 秒',
+            m: '1 分鐘',
+            mm: '%d 分鐘',
+            h: '1 小時',
+            hh: '%d 小時',
+            d: '1 天',
+            dd: '%d 天',
+            M: '1 個月',
+            MM: '%d 個月',
+            y: '1 年',
+            yy: '%d 年',
+        },
+    });
+
+    hooks.locale('en');
+
+    return hooks;
+
+})));
diff --git a/backend/node_modules/moment/min/moment-with-locales.min.js b/backend/node_modules/moment/min/moment-with-locales.min.js
new file mode 100644
index 0000000..8a6c9b4
--- /dev/null
+++ b/backend/node_modules/moment/min/moment-with-locales.min.js
@@ -0,0 +1,2 @@
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e.replace(/,/g,"\u060c")},week:{dow:0,doy:4}}),c.defineLocale("ar-kw",{months:"\u064a\u0646\u0627\u064a\u0631_\u0641\u0628\u0631\u0627\u064a\u0631_\u0645\u0627\u0631\u0633_\u0623\u0628\u0631\u064a\u0644_\u0645\u0627\u064a_\u064a\u0648\u0646\u064a\u0648_\u064a\u0648\u0644\u064a\u0648\u0632_\u063a\u0634\u062a_\u0634\u062a\u0646\u0628\u0631_\u0623\u0643\u062a\u0648\u0628\u0631_\u0646\u0648\u0646\u0628\u0631_\u062f\u062c\u0646\u0628\u0631".split("_"),monthsShort:"\u064a\u0646\u0627\u064a\u0631_\u0641\u0628\u0631\u0627\u064a\u0631_\u0645\u0627\u0631\u0633_\u0623\u0628\u0631\u064a\u0644_\u0645\u0627\u064a_\u064a\u0648\u0646\u064a\u0648_\u064a\u0648\u0644\u064a\u0648\u0632_\u063a\u0634\u062a_\u0634\u062a\u0646\u0628\u0631_\u0623\u0643\u062a\u0648\u0628\u0631_\u0646\u0648\u0646\u0628\u0631_\u062f\u062c\u0646\u0628\u0631".split("_"),weekdays:"\u0627\u0644\u0623\u062d\u062f_\u0627\u0644\u0625\u062a\u0646\u064a\u0646_\u0627\u0644\u062b\u0644\u0627\u062b\u0627\u0621_\u0627\u0644\u0623\u0631\u0628\u0639\u0627\u0621_\u0627\u0644\u062e\u0645\u064a\u0633_\u0627\u0644\u062c\u0645\u0639\u0629_\u0627\u0644\u0633\u0628\u062a".split("_"),weekdaysShort:"\u0627\u062d\u062f_\u0627\u062a\u0646\u064a\u0646_\u062b\u0644\u0627\u062b\u0627\u0621_\u0627\u0631\u0628\u0639\u0627\u0621_\u062e\u0645\u064a\u0633_\u062c\u0645\u0639\u0629_\u0633\u0628\u062a".split("_"),weekdaysMin:"\u062d_\u0646_\u062b_\u0631_\u062e_\u062c_\u0633".split("_"),weekdaysParseExact:!0,longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D 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MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd D MMMM YYYY HH:mm"},calendar:{sameDay:"[\u0627\u0644\u064a\u0648\u0645 \u0639\u0644\u0649 \u0627\u0644\u0633\u0627\u0639\u0629] LT",nextDay:"[\u063a\u062f\u0627 \u0639\u0644\u0649 \u0627\u0644\u0633\u0627\u0639\u0629] LT",nextWeek:"dddd [\u0639\u0644\u0649 \u0627\u0644\u0633\u0627\u0639\u0629] LT",lastDay:"[\u0623\u0645\u0633 \u0639\u0644\u0649 \u0627\u0644\u0633\u0627\u0639\u0629] LT",lastWeek:"dddd [\u0639\u0644\u0649 \u0627\u0644\u0633\u0627\u0639\u0629] LT",sameElse:"L"},relativeTime:{future:"\u0641\u064a %s",past:"\u0645\u0646\u0630 %s",s:"\u062b\u0648\u0627\u0646",ss:"%d \u062b\u0627\u0646\u064a\u0629",m:"\u062f\u0642\u064a\u0642\u0629",mm:"%d \u062f\u0642\u0627\u0626\u0642",h:"\u0633\u0627\u0639\u0629",hh:"%d \u0633\u0627\u0639\u0627\u062a",d:"\u064a\u0648\u0645",dd:"%d \u0623\u064a\u0627\u0645",M:"\u0634\u0647\u0631",MM:"%d \u0623\u0634\u0647\u0631",y:"\u0633\u0646\u0629",yy:"%d 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MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd D MMMM YYYY HH:mm"},meridiemParse:/\u0635|\u0645/,isPM:function(e){return"\u0645"===e},meridiem:function(e,a,t){return e<12?"\u0635":"\u0645"},calendar:{sameDay:"[\u0627\u0644\u064a\u0648\u0645 \u0639\u0644\u0649 \u0627\u0644\u0633\u0627\u0639\u0629] LT",nextDay:"[\u063a\u062f\u0627 \u0639\u0644\u0649 \u0627\u0644\u0633\u0627\u0639\u0629] LT",nextWeek:"dddd [\u0639\u0644\u0649 \u0627\u0644\u0633\u0627\u0639\u0629] LT",lastDay:"[\u0623\u0645\u0633 \u0639\u0644\u0649 \u0627\u0644\u0633\u0627\u0639\u0629] LT",lastWeek:"dddd [\u0639\u0644\u0649 \u0627\u0644\u0633\u0627\u0639\u0629] LT",sameElse:"L"},relativeTime:{future:"\u0641\u064a %s",past:"\u0645\u0646\u0630 %s",s:"\u062b\u0648\u0627\u0646",ss:"%d \u062b\u0627\u0646\u064a\u0629",m:"\u062f\u0642\u064a\u0642\u0629",mm:"%d \u062f\u0642\u0627\u0626\u0642",h:"\u0633\u0627\u0639\u0629",hh:"%d \u0633\u0627\u0639\u0627\u062a",d:"\u064a\u0648\u0645",dd:"%d 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MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd D MMMM YYYY HH:mm"},meridiemParse:/\u0635|\u0645/,isPM:function(e){return"\u0645"===e},meridiem:function(e,a,t){return e<12?"\u0635":"\u0645"},calendar:{sameDay:"[\u0627\u0644\u064a\u0648\u0645 \u0639\u0644\u0649 \u0627\u0644\u0633\u0627\u0639\u0629] LT",nextDay:"[\u063a\u062f\u0627 \u0639\u0644\u0649 \u0627\u0644\u0633\u0627\u0639\u0629] LT",nextWeek:"dddd [\u0639\u0644\u0649 \u0627\u0644\u0633\u0627\u0639\u0629] LT",lastDay:"[\u0623\u0645\u0633 \u0639\u0644\u0649 \u0627\u0644\u0633\u0627\u0639\u0629] LT",lastWeek:"dddd [\u0639\u0644\u0649 \u0627\u0644\u0633\u0627\u0639\u0629] LT",sameElse:"L"},relativeTime:{future:"\u0641\u064a %s",past:"\u0645\u0646\u0630 %s",s:"\u062b\u0648\u0627\u0646",ss:"%d \u062b\u0627\u0646\u064a\u0629",m:"\u062f\u0642\u064a\u0642\u0629",mm:"%d \u062f\u0642\u0627\u0626\u0642",h:"\u0633\u0627\u0639\u0629",hh:"%d \u0633\u0627\u0639\u0627\u062a",d:"\u064a\u0648\u0645",dd:"%d 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Vt[e]}).replace(/,/g,"\u060c")},week:{dow:0,doy:6}}),c.defineLocale("ar-tn",{months:"\u062c\u0627\u0646\u0641\u064a_\u0641\u064a\u0641\u0631\u064a_\u0645\u0627\u0631\u0633_\u0623\u0641\u0631\u064a\u0644_\u0645\u0627\u064a_\u062c\u0648\u0627\u0646_\u062c\u0648\u064a\u0644\u064a\u0629_\u0623\u0648\u062a_\u0633\u0628\u062a\u0645\u0628\u0631_\u0623\u0643\u062a\u0648\u0628\u0631_\u0646\u0648\u0641\u0645\u0628\u0631_\u062f\u064a\u0633\u0645\u0628\u0631".split("_"),monthsShort:"\u062c\u0627\u0646\u0641\u064a_\u0641\u064a\u0641\u0631\u064a_\u0645\u0627\u0631\u0633_\u0623\u0641\u0631\u064a\u0644_\u0645\u0627\u064a_\u062c\u0648\u0627\u0646_\u062c\u0648\u064a\u0644\u064a\u0629_\u0623\u0648\u062a_\u0633\u0628\u062a\u0645\u0628\u0631_\u0623\u0643\u062a\u0648\u0628\u0631_\u0646\u0648\u0641\u0645\u0628\u0631_\u062f\u064a\u0633\u0645\u0628\u0631".split("_"),weekdays:"\u0627\u0644\u0623\u062d\u062f_\u0627\u0644\u0625\u062b\u0646\u064a\u0646_\u0627\u0644\u062b\u0644\u0627\u062b\u0627\u0621_\u0627\u0644\u0623\u0631\u0628\u0639\u0627\u0621_\u0627\u0644\u062e\u0645\u064a\u0633_\u0627\u0644\u062c\u0645\u0639\u0629_\u0627\u0644\u0633\u0628\u062a".split("_"),weekdaysShort:"\u0623\u062d\u062f_\u0625\u062b\u0646\u064a\u0646_\u062b\u0644\u0627\u062b\u0627\u0621_\u0623\u0631\u0628\u0639\u0627\u0621_\u062e\u0645\u064a\u0633_\u062c\u0645\u0639\u0629_\u0633\u0628\u062a".split("_"),weekdaysMin:"\u062d_\u0646_\u062b_\u0631_\u062e_\u062c_\u0633".split("_"),weekdaysParseExact:!0,longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd D MMMM YYYY HH:mm"},calendar:{sameDay:"[\u0627\u0644\u064a\u0648\u0645 \u0639\u0644\u0649 \u0627\u0644\u0633\u0627\u0639\u0629] LT",nextDay:"[\u063a\u062f\u0627 \u0639\u0644\u0649 \u0627\u0644\u0633\u0627\u0639\u0629] LT",nextWeek:"dddd [\u0639\u0644\u0649 \u0627\u0644\u0633\u0627\u0639\u0629] LT",lastDay:"[\u0623\u0645\u0633 \u0639\u0644\u0649 \u0627\u0644\u0633\u0627\u0639\u0629] LT",lastWeek:"dddd [\u0639\u0644\u0649 \u0627\u0644\u0633\u0627\u0639\u0629] LT",sameElse:"L"},relativeTime:{future:"\u0641\u064a %s",past:"\u0645\u0646\u0630 %s",s:"\u062b\u0648\u0627\u0646",ss:"%d \u062b\u0627\u0646\u064a\u0629",m:"\u062f\u0642\u064a\u0642\u0629",mm:"%d \u062f\u0642\u0627\u0626\u0642",h:"\u0633\u0627\u0639\u0629",hh:"%d \u0633\u0627\u0639\u0627\u062a",d:"\u064a\u0648\u0645",dd:"%d \u0623\u064a\u0627\u0645",M:"\u0634\u0647\u0631",MM:"%d \u0623\u0634\u0647\u0631",y:"\u0633\u0646\u0629",yy:"%d 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MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd D MMMM YYYY HH:mm"},meridiemParse:/\u0635|\u0645/,isPM:function(e){return"\u0645"===e},meridiem:function(e,a,t){return e<12?"\u0635":"\u0645"},calendar:{sameDay:"[\u0627\u0644\u064a\u0648\u0645 \u0639\u0646\u062f \u0627\u0644\u0633\u0627\u0639\u0629] LT",nextDay:"[\u063a\u062f\u064b\u0627 \u0639\u0646\u062f \u0627\u0644\u0633\u0627\u0639\u0629] LT",nextWeek:"dddd [\u0639\u0646\u062f \u0627\u0644\u0633\u0627\u0639\u0629] LT",lastDay:"[\u0623\u0645\u0633 \u0639\u0646\u062f \u0627\u0644\u0633\u0627\u0639\u0629] LT",lastWeek:"dddd [\u0639\u0646\u062f \u0627\u0644\u0633\u0627\u0639\u0629] LT",sameElse:"L"},relativeTime:{future:"\u0628\u0639\u062f %s",past:"\u0645\u0646\u0630 %s",s:S("s"),ss:S("s"),m:S("m"),mm:S("m"),h:S("h"),hh:S("h"),d:S("d"),dd:S("d"),M:S("M"),MM:S("M"),y:S("y"),yy:S("y")},preparse:function(e){return e.replace(/[\u0661\u0662\u0663\u0664\u0665\u0666\u0667\u0668\u0669\u0660]/g,function(e){return Kt[e]}).replace(/\u060c/g,",")},postformat:function(e){return e.replace(/\d/g,function(e){return Bt[e]}).replace(/,/g,"\u060c")},week:{dow:6,doy:12}}),{1:"-inci",5:"-inci",8:"-inci",70:"-inci",80:"-inci",2:"-nci",7:"-nci",20:"-nci",50:"-nci",3:"-\xfcnc\xfc",4:"-\xfcnc\xfc",100:"-\xfcnc\xfc",6:"-nc\u0131",9:"-uncu",10:"-uncu",30:"-uncu",60:"-\u0131nc\u0131",90:"-\u0131nc\u0131"});function Qt(e,a,t){return"m"===t?a?"\u0445\u0432\u0456\u043b\u0456\u043d\u0430":"\u0445\u0432\u0456\u043b\u0456\u043d\u0443":"h"===t?a?"\u0433\u0430\u0434\u0437\u0456\u043d\u0430":"\u0433\u0430\u0434\u0437\u0456\u043d\u0443":e+" 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il"},meridiemParse:/gec\u0259|s\u0259h\u0259r|g\xfcnd\xfcz|ax\u015fam/,isPM:function(e){return/^(g\xfcnd\xfcz|ax\u015fam)$/.test(e)},meridiem:function(e,a,t){return e<4?"gec\u0259":e<12?"s\u0259h\u0259r":e<17?"g\xfcnd\xfcz":"ax\u015fam"},dayOfMonthOrdinalParse:/\d{1,2}-(\u0131nc\u0131|inci|nci|\xfcnc\xfc|nc\u0131|uncu)/,ordinal:function(e){var a;return 0===e?e+"-\u0131nc\u0131":e+($t[a=e%10]||$t[e%100-a]||$t[100<=e?100:null])},week:{dow:1,doy:7}}),c.defineLocale("be",{months:{format:"\u0441\u0442\u0443\u0434\u0437\u0435\u043d\u044f_\u043b\u044e\u0442\u0430\u0433\u0430_\u0441\u0430\u043a\u0430\u0432\u0456\u043a\u0430_\u043a\u0440\u0430\u0441\u0430\u0432\u0456\u043a\u0430_\u0442\u0440\u0430\u045e\u043d\u044f_\u0447\u044d\u0440\u0432\u0435\u043d\u044f_\u043b\u0456\u043f\u0435\u043d\u044f_\u0436\u043d\u0456\u045e\u043d\u044f_\u0432\u0435\u0440\u0430\u0441\u043d\u044f_\u043a\u0430\u0441\u0442\u0440\u044b\u0447\u043d\u0456\u043a\u0430_\u043b\u0456\u0441\u0442\u0430\u043f\u0430\u0434\u0430_\u0441\u043d\u0435\u0436\u043d\u044f".split("_"),standalone:"\u0441\u0442\u0443\u0434\u0437\u0435\u043d\u044c_\u043b\u044e\u0442\u044b_\u0441\u0430\u043a\u0430\u0432\u0456\u043a_\u043a\u0440\u0430\u0441\u0430\u0432\u0456\u043a_\u0442\u0440\u0430\u0432\u0435\u043d\u044c_\u0447\u044d\u0440\u0432\u0435\u043d\u044c_\u043b\u0456\u043f\u0435\u043d\u044c_\u0436\u043d\u0456\u0432\u0435\u043d\u044c_\u0432\u0435\u0440\u0430\u0441\u0435\u043d\u044c_\u043a\u0430\u0441\u0442\u0440\u044b\u0447\u043d\u0456\u043a_\u043b\u0456\u0441\u0442\u0430\u043f\u0430\u0434_\u0441\u043d\u0435\u0436\u0430\u043d\u044c".split("_")},monthsShort:"\u0441\u0442\u0443\u0434_\u043b\u044e\u0442_\u0441\u0430\u043a_\u043a\u0440\u0430\u0441_\u0442\u0440\u0430\u0432_\u0447\u044d\u0440\u0432_\u043b\u0456\u043f_\u0436\u043d\u0456\u0432_\u0432\u0435\u0440_\u043a\u0430\u0441\u0442_\u043b\u0456\u0441\u0442_\u0441\u043d\u0435\u0436".split("_"),weekdays:{format:"\u043d\u044f\u0434\u0437\u0435\u043b\u044e_\u043f\u0430\u043d\u044f\u0434\u0437\u0435\u043b\u0430\u043a_\u0430\u045e\u0442\u043e\u0440\u0430\u043a_\u0441\u0435\u0440\u0430\u0434\u0443_\u0447\u0430\u0446\u0432\u0435\u0440_\u043f\u044f\u0442\u043d\u0456\u0446\u0443_\u0441\u0443\u0431\u043e\u0442\u0443".split("_"),standalone:"\u043d\u044f\u0434\u0437\u0435\u043b\u044f_\u043f\u0430\u043d\u044f\u0434\u0437\u0435\u043b\u0430\u043a_\u0430\u045e\u0442\u043e\u0440\u0430\u043a_\u0441\u0435\u0440\u0430\u0434\u0430_\u0447\u0430\u0446\u0432\u0435\u0440_\u043f\u044f\u0442\u043d\u0456\u0446\u0430_\u0441\u0443\u0431\u043e\u0442\u0430".split("_"),isFormat:/\[ ?[\u0423\u0443\u045e] ?(?:\u043c\u0456\u043d\u0443\u043b\u0443\u044e|\u043d\u0430\u0441\u0442\u0443\u043f\u043d\u0443\u044e)? ?\] ?dddd/},weekdaysShort:"\u043d\u0434_\u043f\u043d_\u0430\u0442_\u0441\u0440_\u0447\u0446_\u043f\u0442_\u0441\u0431".split("_"),weekdaysMin:"\u043d\u0434_\u043f\u043d_\u0430\u0442_\u0441\u0440_\u0447\u0446_\u043f\u0442_\u0441\u0431".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD.MM.YYYY",LL:"D MMMM YYYY \u0433.",LLL:"D MMMM YYYY \u0433., HH:mm",LLLL:"dddd, D MMMM YYYY \u0433., HH:mm"},calendar:{sameDay:"[\u0421\u0451\u043d\u043d\u044f \u045e] LT",nextDay:"[\u0417\u0430\u045e\u0442\u0440\u0430 \u045e] LT",lastDay:"[\u0423\u0447\u043e\u0440\u0430 \u045e] LT",nextWeek:function(){return"[\u0423] dddd [\u045e] LT"},lastWeek:function(){switch(this.day()){case 0:case 3:case 5:case 6:return"[\u0423 \u043c\u0456\u043d\u0443\u043b\u0443\u044e] dddd [\u045e] LT";case 1:case 2:case 4:return"[\u0423 \u043c\u0456\u043d\u0443\u043b\u044b] dddd [\u045e] LT"}},sameElse:"L"},relativeTime:{future:"\u043f\u0440\u0430\u0437 %s",past:"%s \u0442\u0430\u043c\u0443",s:"\u043d\u0435\u043a\u0430\u043b\u044c\u043a\u0456 \u0441\u0435\u043a\u0443\u043d\u0434",m:Qt,mm:Qt,h:Qt,hh:Qt,d:"\u0434\u0437\u0435\u043d\u044c",dd:Qt,M:"\u043c\u0435\u0441\u044f\u0446",MM:Qt,y:"\u0433\u043e\u0434",yy:Qt},meridiemParse:/\u043d\u043e\u0447\u044b|\u0440\u0430\u043d\u0456\u0446\u044b|\u0434\u043d\u044f|\u0432\u0435\u0447\u0430\u0440\u0430/,isPM:function(e){return/^(\u0434\u043d\u044f|\u0432\u0435\u0447\u0430\u0440\u0430)$/.test(e)},meridiem:function(e,a,t){return e<4?"\u043d\u043e\u0447\u044b":e<12?"\u0440\u0430\u043d\u0456\u0446\u044b":e<17?"\u0434\u043d\u044f":"\u0432\u0435\u0447\u0430\u0440\u0430"},dayOfMonthOrdinalParse:/\d{1,2}-(\u0456|\u044b|\u0433\u0430)/,ordinal:function(e,a){switch(a){case"M":case"d":case"DDD":case"w":case"W":return e%10!=2&&e%10!=3||e%100==12||e%100==13?e+"-\u044b":e+"-\u0456";case"D":return e+"-\u0433\u0430";default:return e}},week:{dow:1,doy:7}}),c.defineLocale("bg",{months:"\u044f\u043d\u0443\u0430\u0440\u0438_\u0444\u0435\u0432\u0440\u0443\u0430\u0440\u0438_\u043c\u0430\u0440\u0442_\u0430\u043f\u0440\u0438\u043b_\u043c\u0430\u0439_\u044e\u043d\u0438_\u044e\u043b\u0438_\u0430\u0432\u0433\u0443\u0441\u0442_\u0441\u0435\u043f\u0442\u0435\u043c\u0432\u0440\u0438_\u043e\u043a\u0442\u043e\u043c\u0432\u0440\u0438_\u043d\u043e\u0435\u043c\u0432\u0440\u0438_\u0434\u0435\u043a\u0435\u043c\u0432\u0440\u0438".split("_"),monthsShort:"\u044f\u043d\u0443_\u0444\u0435\u0432_\u043c\u0430\u0440_\u0430\u043f\u0440_\u043c\u0430\u0439_\u044e\u043d\u0438_\u044e\u043b\u0438_\u0430\u0432\u0433_\u0441\u0435\u043f_\u043e\u043a\u0442_\u043d\u043e\u0435_\u0434\u0435\u043a".split("_"),weekdays:"\u043d\u0435\u0434\u0435\u043b\u044f_\u043f\u043e\u043d\u0435\u0434\u0435\u043b\u043d\u0438\u043a_\u0432\u0442\u043e\u0440\u043d\u0438\u043a_\u0441\u0440\u044f\u0434\u0430_\u0447\u0435\u0442\u0432\u044a\u0440\u0442\u044a\u043a_\u043f\u0435\u0442\u044a\u043a_\u0441\u044a\u0431\u043e\u0442\u0430".split("_"),weekdaysShort:"\u043d\u0435\u0434_\u043f\u043e\u043d_\u0432\u0442\u043e_\u0441\u0440\u044f_\u0447\u0435\u0442_\u043f\u0435\u0442_\u0441\u044a\u0431".split("_"),weekdaysMin:"\u043d\u0434_\u043f\u043d_\u0432\u0442_\u0441\u0440_\u0447\u0442_\u043f\u0442_\u0441\u0431".split("_"),longDateFormat:{LT:"H:mm",LTS:"H:mm:ss",L:"D.MM.YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY H:mm",LLLL:"dddd, D MMMM YYYY H:mm"},calendar:{sameDay:"[\u0414\u043d\u0435\u0441 \u0432] LT",nextDay:"[\u0423\u0442\u0440\u0435 \u0432] LT",nextWeek:"dddd [\u0432] LT",lastDay:"[\u0412\u0447\u0435\u0440\u0430 \u0432] LT",lastWeek:function(){switch(this.day()){case 0:case 3:case 6:return"[\u041c\u0438\u043d\u0430\u043b\u0430\u0442\u0430] dddd [\u0432] LT";case 1:case 2:case 4:case 5:return"[\u041c\u0438\u043d\u0430\u043b\u0438\u044f] dddd [\u0432] LT"}},sameElse:"L"},relativeTime:{future:"\u0441\u043b\u0435\u0434 %s",past:"\u043f\u0440\u0435\u0434\u0438 %s",s:"\u043d\u044f\u043a\u043e\u043b\u043a\u043e \u0441\u0435\u043a\u0443\u043d\u0434\u0438",ss:"%d \u0441\u0435\u043a\u0443\u043d\u0434\u0438",m:"\u043c\u0438\u043d\u0443\u0442\u0430",mm:"%d \u043c\u0438\u043d\u0443\u0442\u0438",h:"\u0447\u0430\u0441",hh:"%d \u0447\u0430\u0441\u0430",d:"\u0434\u0435\u043d",dd:"%d \u0434\u0435\u043d\u0430",w:"\u0441\u0435\u0434\u043c\u0438\u0446\u0430",ww:"%d 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Jahren"]};return a?e[t][0]:e[t][1]}function os(e,a,t,s){e={m:["eine Minute","einer Minute"],h:["eine Stunde","einer Stunde"],d:["ein Tag","einem Tag"],dd:[e+" Tage",e+" Tagen"],w:["eine Woche","einer Woche"],M:["ein Monat","einem Monat"],MM:[e+" Monate",e+" Monaten"],y:["ein Jahr","einem Jahr"],yy:[e+" Jahre",e+" Jahren"]};return a?e[t][0]:e[t][1]}function ms(e,a,t,s){e={m:["eine Minute","einer Minute"],h:["eine Stunde","einer Stunde"],d:["ein Tag","einem Tag"],dd:[e+" Tage",e+" Tagen"],w:["eine Woche","einer Woche"],M:["ein Monat","einem Monat"],MM:[e+" Monate",e+" Monaten"],y:["ein Jahr","einem Jahr"],yy:[e+" Jahre",e+" Jahren"]};return a?e[t][0]:e[t][1]}c.defineLocale("cs",{months:ye,monthsShort:na,monthsRegex:t,monthsShortRegex:t,monthsStrictRegex:/^(leden|ledna|\xfanora|\xfanor|b\u0159ezen|b\u0159ezna|duben|dubna|kv\u011bten|kv\u011btna|\u010dervenec|\u010dervence|\u010derven|\u010dervna|srpen|srpna|z\xe1\u0159\xed|\u0159\xedjen|\u0159\xedjna|listopadu|listopad|prosinec|prosince)/i,monthsShortStrictRegex:/^(led|\xfano|b\u0159e|dub|kv\u011b|\u010dvn|\u010dvc|srp|z\xe1\u0159|\u0159\xedj|lis|pro)/i,monthsParse:m,longMonthsParse:m,shortMonthsParse:m,weekdays:"ned\u011ble_pond\u011bl\xed_\xfater\xfd_st\u0159eda_\u010dtvrtek_p\xe1tek_sobota".split("_"),weekdaysShort:"ne_po_\xfat_st_\u010dt_p\xe1_so".split("_"),weekdaysMin:"ne_po_\xfat_st_\u010dt_p\xe1_so".split("_"),longDateFormat:{LT:"H:mm",LTS:"H:mm:ss",L:"DD.MM.YYYY",LL:"D. MMMM YYYY",LLL:"D. MMMM YYYY H:mm",LLLL:"dddd D. MMMM YYYY H:mm",l:"D. M. YYYY"},calendar:{sameDay:"[dnes v] LT",nextDay:"[z\xedtra v] LT",nextWeek:function(){switch(this.day()){case 0:return"[v ned\u011bli v] LT";case 1:case 2:return"[v] dddd [v] LT";case 3:return"[ve st\u0159edu v] LT";case 4:return"[ve \u010dtvrtek v] LT";case 5:return"[v p\xe1tek v] LT";case 6:return"[v sobotu v] LT"}},lastDay:"[v\u010dera v] LT",lastWeek:function(){switch(this.day()){case 0:return"[minulou ned\u011bli v] LT";case 1:case 2:return"[minul\xe9] dddd [v] LT";case 3:return"[minulou st\u0159edu v] LT";case 4:case 5:return"[minul\xfd] dddd [v] LT";case 6:return"[minulou sobotu v] LT"}},sameElse:"L"},relativeTime:{future:"za %s",past:"p\u0159ed %s",s:j,ss:j,m:j,mm:j,h:j,hh:j,d:j,dd:j,M:j,MM:j,y:j,yy:j},dayOfMonthOrdinalParse:/\d{1,2}\./,ordinal:"%d.",week:{dow:1,doy:4}}),c.defineLocale("cv",{months:"\u043a\u04d1\u0440\u043b\u0430\u0447_\u043d\u0430\u0440\u04d1\u0441_\u043f\u0443\u0448_\u0430\u043a\u0430_\u043c\u0430\u0439_\u04ab\u04d7\u0440\u0442\u043c\u0435_\u0443\u0442\u04d1_\u04ab\u0443\u0440\u043b\u0430_\u0430\u0432\u04d1\u043d_\u044e\u043f\u0430_\u0447\u04f3\u043a_\u0440\u0430\u0448\u0442\u0430\u0432".split("_"),monthsShort:"\u043a\u04d1\u0440_\u043d\u0430\u0440_\u043f\u0443\u0448_\u0430\u043a\u0430_\u043c\u0430\u0439_\u04ab\u04d7\u0440_\u0443\u0442\u04d1_\u04ab\u0443\u0440_\u0430\u0432\u043d_\u044e\u043f\u0430_\u0447\u04f3\u043a_\u0440\u0430\u0448".split("_"),weekdays:"\u0432\u044b\u0440\u0441\u0430\u0440\u043d\u0438\u043a\u0443\u043d_\u0442\u0443\u043d\u0442\u0438\u043a\u0443\u043d_\u044b\u0442\u043b\u0430\u0440\u0438\u043a\u0443\u043d_\u044e\u043d\u043a\u0443\u043d_\u043a\u04d7\u04ab\u043d\u0435\u0440\u043d\u0438\u043a\u0443\u043d_\u044d\u0440\u043d\u0435\u043a\u0443\u043d_\u0448\u04d1\u043c\u0430\u0442\u043a\u0443\u043d".split("_"),weekdaysShort:"\u0432\u044b\u0440_\u0442\u0443\u043d_\u044b\u0442\u043b_\u044e\u043d_\u043a\u04d7\u04ab_\u044d\u0440\u043d_\u0448\u04d1\u043c".split("_"),weekdaysMin:"\u0432\u0440_\u0442\u043d_\u044b\u0442_\u044e\u043d_\u043a\u04ab_\u044d\u0440_\u0448\u043c".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD-MM-YYYY",LL:"YYYY [\u04ab\u0443\u043b\u0445\u0438] MMMM [\u0443\u0439\u04d1\u0445\u04d7\u043d] D[-\u043c\u04d7\u0448\u04d7]",LLL:"YYYY [\u04ab\u0443\u043b\u0445\u0438] MMMM [\u0443\u0439\u04d1\u0445\u04d7\u043d] D[-\u043c\u04d7\u0448\u04d7], HH:mm",LLLL:"dddd, YYYY [\u04ab\u0443\u043b\u0445\u0438] MMMM [\u0443\u0439\u04d1\u0445\u04d7\u043d] D[-\u043c\u04d7\u0448\u04d7], HH:mm"},calendar:{sameDay:"[\u041f\u0430\u044f\u043d] LT [\u0441\u0435\u0445\u0435\u0442\u0440\u0435]",nextDay:"[\u042b\u0440\u0430\u043d] LT [\u0441\u0435\u0445\u0435\u0442\u0440\u0435]",lastDay:"[\u04d6\u043d\u0435\u0440] LT [\u0441\u0435\u0445\u0435\u0442\u0440\u0435]",nextWeek:"[\u04aa\u0438\u0442\u0435\u0441] dddd LT [\u0441\u0435\u0445\u0435\u0442\u0440\u0435]",lastWeek:"[\u0418\u0440\u0442\u043d\u04d7] dddd LT [\u0441\u0435\u0445\u0435\u0442\u0440\u0435]",sameElse:"L"},relativeTime:{future:function(e){return e+(/\u0441\u0435\u0445\u0435\u0442$/i.exec(e)?"\u0440\u0435\u043d":/\u04ab\u0443\u043b$/i.exec(e)?"\u0442\u0430\u043d":"\u0440\u0430\u043d")},past:"%s \u043a\u0430\u044f\u043b\u043b\u0430",s:"\u043f\u04d7\u0440-\u0438\u043a \u04ab\u0435\u043a\u043a\u0443\u043d\u0442",ss:"%d \u04ab\u0435\u043a\u043a\u0443\u043d\u0442",m:"\u043f\u04d7\u0440 \u043c\u0438\u043d\u0443\u0442",mm:"%d \u043c\u0438\u043d\u0443\u0442",h:"\u043f\u04d7\u0440 \u0441\u0435\u0445\u0435\u0442",hh:"%d \u0441\u0435\u0445\u0435\u0442",d:"\u043f\u04d7\u0440 \u043a\u0443\u043d",dd:"%d \u043a\u0443\u043d",M:"\u043f\u04d7\u0440 \u0443\u0439\u04d1\u0445",MM:"%d \u0443\u0439\u04d1\u0445",y:"\u043f\u04d7\u0440 \u04ab\u0443\u043b",yy:"%d \u04ab\u0443\u043b"},dayOfMonthOrdinalParse:/\d{1,2}-\u043c\u04d7\u0448/,ordinal:"%d-\u043c\u04d7\u0448",week:{dow:1,doy:7}}),c.defineLocale("cy",{months:"Ionawr_Chwefror_Mawrth_Ebrill_Mai_Mehefin_Gorffennaf_Awst_Medi_Hydref_Tachwedd_Rhagfyr".split("_"),monthsShort:"Ion_Chwe_Maw_Ebr_Mai_Meh_Gor_Aws_Med_Hyd_Tach_Rhag".split("_"),weekdays:"Dydd Sul_Dydd Llun_Dydd Mawrth_Dydd Mercher_Dydd Iau_Dydd Gwener_Dydd Sadwrn".split("_"),weekdaysShort:"Sul_Llun_Maw_Mer_Iau_Gwe_Sad".split("_"),weekdaysMin:"Su_Ll_Ma_Me_Ia_Gw_Sa".split("_"),weekdaysParseExact:!0,longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd, D MMMM YYYY HH:mm"},calendar:{sameDay:"[Heddiw am] LT",nextDay:"[Yfory am] LT",nextWeek:"dddd [am] LT",lastDay:"[Ddoe am] LT",lastWeek:"dddd [diwethaf am] LT",sameElse:"L"},relativeTime:{future:"mewn %s",past:"%s yn \xf4l",s:"ychydig eiliadau",ss:"%d eiliad",m:"munud",mm:"%d munud",h:"awr",hh:"%d awr",d:"diwrnod",dd:"%d diwrnod",M:"mis",MM:"%d mis",y:"blwyddyn",yy:"%d flynedd"},dayOfMonthOrdinalParse:/\d{1,2}(fed|ain|af|il|ydd|ed|eg)/,ordinal:function(e){var a="";return 20<e?a=40===e||50===e||60===e||80===e||100===e?"fed":"ain":0<e&&(a=["","af","il","ydd","ydd","ed","ed","ed","fed","fed","fed","eg","fed","eg","eg","fed","eg","eg","fed","eg","fed"][e]),e+a},week:{dow:1,doy:4}}),c.defineLocale("da",{months:"januar_februar_marts_april_maj_juni_juli_august_september_oktober_november_december".split("_"),monthsShort:"jan_feb_mar_apr_maj_jun_jul_aug_sep_okt_nov_dec".split("_"),weekdays:"s\xf8ndag_mandag_tirsdag_onsdag_torsdag_fredag_l\xf8rdag".split("_"),weekdaysShort:"s\xf8n_man_tir_ons_tor_fre_l\xf8r".split("_"),weekdaysMin:"s\xf8_ma_ti_on_to_fr_l\xf8".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD.MM.YYYY",LL:"D. MMMM YYYY",LLL:"D. MMMM YYYY HH:mm",LLLL:"dddd [d.] D. MMMM YYYY [kl.] HH:mm"},calendar:{sameDay:"[i dag kl.] LT",nextDay:"[i morgen kl.] LT",nextWeek:"p\xe5 dddd [kl.] LT",lastDay:"[i g\xe5r kl.] LT",lastWeek:"[i] dddd[s kl.] LT",sameElse:"L"},relativeTime:{future:"om %s",past:"%s siden",s:"f\xe5 sekunder",ss:"%d sekunder",m:"et minut",mm:"%d minutter",h:"en time",hh:"%d timer",d:"en dag",dd:"%d dage",M:"en m\xe5ned",MM:"%d m\xe5neder",y:"et \xe5r",yy:"%d \xe5r"},dayOfMonthOrdinalParse:/\d{1,2}\./,ordinal:"%d.",week:{dow:1,doy:4}}),c.defineLocale("de-at",{months:"J\xe4nner_Februar_M\xe4rz_April_Mai_Juni_Juli_August_September_Oktober_November_Dezember".split("_"),monthsShort:"J\xe4n._Feb._M\xe4rz_Apr._Mai_Juni_Juli_Aug._Sep._Okt._Nov._Dez.".split("_"),monthsParseExact:!0,weekdays:"Sonntag_Montag_Dienstag_Mittwoch_Donnerstag_Freitag_Samstag".split("_"),weekdaysShort:"So._Mo._Di._Mi._Do._Fr._Sa.".split("_"),weekdaysMin:"So_Mo_Di_Mi_Do_Fr_Sa".split("_"),weekdaysParseExact:!0,longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD.MM.YYYY",LL:"D. MMMM YYYY",LLL:"D. MMMM YYYY HH:mm",LLLL:"dddd, D. MMMM YYYY HH:mm"},calendar:{sameDay:"[heute um] LT [Uhr]",sameElse:"L",nextDay:"[morgen um] LT [Uhr]",nextWeek:"dddd [um] LT [Uhr]",lastDay:"[gestern um] LT [Uhr]",lastWeek:"[letzten] dddd [um] LT [Uhr]"},relativeTime:{future:"in %s",past:"vor %s",s:"ein paar Sekunden",ss:"%d Sekunden",m:is,mm:"%d Minuten",h:is,hh:"%d Stunden",d:is,dd:is,w:is,ww:"%d Wochen",M:is,MM:is,y:is,yy:is},dayOfMonthOrdinalParse:/\d{1,2}\./,ordinal:"%d.",week:{dow:1,doy:4}}),c.defineLocale("de-ch",{months:"Januar_Februar_M\xe4rz_April_Mai_Juni_Juli_August_September_Oktober_November_Dezember".split("_"),monthsShort:"Jan._Feb._M\xe4rz_Apr._Mai_Juni_Juli_Aug._Sep._Okt._Nov._Dez.".split("_"),monthsParseExact:!0,weekdays:"Sonntag_Montag_Dienstag_Mittwoch_Donnerstag_Freitag_Samstag".split("_"),weekdaysShort:"So_Mo_Di_Mi_Do_Fr_Sa".split("_"),weekdaysMin:"So_Mo_Di_Mi_Do_Fr_Sa".split("_"),weekdaysParseExact:!0,longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD.MM.YYYY",LL:"D. MMMM YYYY",LLL:"D. MMMM YYYY HH:mm",LLLL:"dddd, D. MMMM YYYY HH:mm"},calendar:{sameDay:"[heute um] LT [Uhr]",sameElse:"L",nextDay:"[morgen um] LT [Uhr]",nextWeek:"dddd [um] LT [Uhr]",lastDay:"[gestern um] LT [Uhr]",lastWeek:"[letzten] dddd [um] LT [Uhr]"},relativeTime:{future:"in %s",past:"vor %s",s:"ein paar Sekunden",ss:"%d Sekunden",m:os,mm:"%d Minuten",h:os,hh:"%d Stunden",d:os,dd:os,w:os,ww:"%d Wochen",M:os,MM:os,y:os,yy:os},dayOfMonthOrdinalParse:/\d{1,2}\./,ordinal:"%d.",week:{dow:1,doy:4}}),c.defineLocale("de",{months:"Januar_Februar_M\xe4rz_April_Mai_Juni_Juli_August_September_Oktober_November_Dezember".split("_"),monthsShort:"Jan._Feb._M\xe4rz_Apr._Mai_Juni_Juli_Aug._Sep._Okt._Nov._Dez.".split("_"),monthsParseExact:!0,weekdays:"Sonntag_Montag_Dienstag_Mittwoch_Donnerstag_Freitag_Samstag".split("_"),weekdaysShort:"So._Mo._Di._Mi._Do._Fr._Sa.".split("_"),weekdaysMin:"So_Mo_Di_Mi_Do_Fr_Sa".split("_"),weekdaysParseExact:!0,longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD.MM.YYYY",LL:"D. MMMM YYYY",LLL:"D. MMMM YYYY HH:mm",LLLL:"dddd, D. 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anos"},dayOfMonthOrdinalParse:/\d{1,2}\xba/,ordinal:"%d\xba",week:{dow:1,doy:4}}),c.defineLocale("gom-deva",{months:{standalone:"\u091c\u093e\u0928\u0947\u0935\u093e\u0930\u0940_\u092b\u0947\u092c\u094d\u0930\u0941\u0935\u093e\u0930\u0940_\u092e\u093e\u0930\u094d\u091a_\u090f\u092a\u094d\u0930\u0940\u0932_\u092e\u0947_\u091c\u0942\u0928_\u091c\u0941\u0932\u092f_\u0911\u0917\u0938\u094d\u091f_\u0938\u092a\u094d\u091f\u0947\u0902\u092c\u0930_\u0911\u0915\u094d\u091f\u094b\u092c\u0930_\u0928\u094b\u0935\u094d\u0939\u0947\u0902\u092c\u0930_\u0921\u093f\u0938\u0947\u0902\u092c\u0930".split("_"),format:"\u091c\u093e\u0928\u0947\u0935\u093e\u0930\u0940\u091a\u094d\u092f\u093e_\u092b\u0947\u092c\u094d\u0930\u0941\u0935\u093e\u0930\u0940\u091a\u094d\u092f\u093e_\u092e\u093e\u0930\u094d\u091a\u093e\u091a\u094d\u092f\u093e_\u090f\u092a\u094d\u0930\u0940\u0932\u093e\u091a\u094d\u092f\u093e_\u092e\u0947\u092f\u093e\u091a\u094d\u092f\u093e_\u091c\u0942\u0928\u093e\u091a\u094d\u092f\u093e_\u091c\u0941\u0932\u092f\u093e\u091a\u094d\u092f\u093e_\u0911\u0917\u0938\u094d\u091f\u093e\u091a\u094d\u092f\u093e_\u0938\u092a\u094d\u091f\u0947\u0902\u092c\u0930\u093e\u091a\u094d\u092f\u093e_\u0911\u0915\u094d\u091f\u094b\u092c\u0930\u093e\u091a\u094d\u092f\u093e_\u0928\u094b\u0935\u094d\u0939\u0947\u0902\u092c\u0930\u093e\u091a\u094d\u092f\u093e_\u0921\u093f\u0938\u0947\u0902\u092c\u0930\u093e\u091a\u094d\u092f\u093e".split("_"),isFormat:/MMMM(\s)+D[oD]?/},monthsShort:"\u091c\u093e\u0928\u0947._\u092b\u0947\u092c\u094d\u0930\u0941._\u092e\u093e\u0930\u094d\u091a_\u090f\u092a\u094d\u0930\u0940._\u092e\u0947_\u091c\u0942\u0928_\u091c\u0941\u0932._\u0911\u0917._\u0938\u092a\u094d\u091f\u0947\u0902._\u0911\u0915\u094d\u091f\u094b._\u0928\u094b\u0935\u094d\u0939\u0947\u0902._\u0921\u093f\u0938\u0947\u0902.".split("_"),monthsParseExact:!0,weekdays:"\u0906\u092f\u0924\u093e\u0930_\u0938\u094b\u092e\u093e\u0930_\u092e\u0902\u0917\u0933\u093e\u0930_\u092c\u0941\u0927\u0935\u093e\u0930_\u092c\u093f\u0930\u0947\u0938\u094d\u0924\u093e\u0930_\u0938\u0941\u0915\u094d\u0930\u093e\u0930_\u0936\u0947\u0928\u0935\u093e\u0930".split("_"),weekdaysShort:"\u0906\u092f\u0924._\u0938\u094b\u092e._\u092e\u0902\u0917\u0933._\u092c\u0941\u0927._\u092c\u094d\u0930\u0947\u0938\u094d\u0924._\u0938\u0941\u0915\u094d\u0930._\u0936\u0947\u0928.".split("_"),weekdaysMin:"\u0906_\u0938\u094b_\u092e\u0902_\u092c\u0941_\u092c\u094d\u0930\u0947_\u0938\u0941_\u0936\u0947".split("_"),weekdaysParseExact:!0,longDateFormat:{LT:"A h:mm [\u0935\u093e\u091c\u0924\u093e\u0902]",LTS:"A h:mm:ss [\u0935\u093e\u091c\u0924\u093e\u0902]",L:"DD-MM-YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY A h:mm [\u0935\u093e\u091c\u0924\u093e\u0902]",LLLL:"dddd, MMMM Do, YYYY, A h:mm [\u0935\u093e\u091c\u0924\u093e\u0902]",llll:"ddd, D MMM YYYY, A h:mm [\u0935\u093e\u091c\u0924\u093e\u0902]"},calendar:{sameDay:"[\u0906\u092f\u091c] LT",nextDay:"[\u092b\u093e\u0932\u094d\u092f\u093e\u0902] LT",nextWeek:"[\u092b\u0941\u0921\u0932\u094b] dddd[,] LT",lastDay:"[\u0915\u093e\u0932] LT",lastWeek:"[\u092b\u093e\u091f\u0932\u094b] dddd[,] LT",sameElse:"L"},relativeTime:{future:"%s",past:"%s \u0906\u0926\u0940\u0902",s:P,ss:P,m:P,mm:P,h:P,hh:P,d:P,dd:P,M:P,MM:P,y:P,yy:P},dayOfMonthOrdinalParse:/\d{1,2}(\u0935\u0947\u0930)/,ordinal:function(e,a){switch(a){case"D":return e+"\u0935\u0947\u0930";default:case"M":case"Q":case"DDD":case"d":case"w":case"W":return e}},week:{dow:0,doy:3},meridiemParse:/\u0930\u093e\u0924\u0940|\u0938\u0915\u093e\u0933\u0940\u0902|\u0926\u0928\u092a\u093e\u0930\u093e\u0902|\u0938\u093e\u0902\u091c\u0947/,meridiemHour:function(e,a){return 12===e&&(e=0),"\u0930\u093e\u0924\u0940"===a?e<4?e:e+12:"\u0938\u0915\u093e\u0933\u0940\u0902"===a?e:"\u0926\u0928\u092a\u093e\u0930\u093e\u0902"===a?12<e?e:e+12:"\u0938\u093e\u0902\u091c\u0947"===a?e+12:void 0},meridiem:function(e,a,t){return e<4?"\u0930\u093e\u0924\u0940":e<12?"\u0938\u0915\u093e\u0933\u0940\u0902":e<16?"\u0926\u0928\u092a\u093e\u0930\u093e\u0902":e<20?"\u0938\u093e\u0902\u091c\u0947":"\u0930\u093e\u0924\u0940"}}),c.defineLocale("gom-latn",{months:{standalone:"Janer_Febrer_Mars_Abril_Mai_Jun_Julai_Agost_Setembr_Otubr_Novembr_Dezembr".split("_"),format:"Janerachea_Febrerachea_Marsachea_Abrilachea_Maiachea_Junachea_Julaiachea_Agostachea_Setembrachea_Otubrachea_Novembrachea_Dezembrachea".split("_"),isFormat:/MMMM(\s)+D[oD]?/},monthsShort:"Jan._Feb._Mars_Abr._Mai_Jun_Jul._Ago._Set._Otu._Nov._Dez.".split("_"),monthsParseExact:!0,weekdays:"Aitar_Somar_Mongllar_Budhvar_Birestar_Sukrar_Son'var".split("_"),weekdaysShort:"Ait._Som._Mon._Bud._Bre._Suk._Son.".split("_"),weekdaysMin:"Ai_Sm_Mo_Bu_Br_Su_Sn".split("_"),weekdaysParseExact:!0,longDateFormat:{LT:"A h:mm [vazta]",LTS:"A h:mm:ss [vazta]",L:"DD-MM-YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY A h:mm [vazta]",LLLL:"dddd, MMMM Do, YYYY, A h:mm [vazta]",llll:"ddd, D MMM YYYY, A h:mm [vazta]"},calendar:{sameDay:"[Aiz] LT",nextDay:"[Faleam] LT",nextWeek:"[Fuddlo] dddd[,] LT",lastDay:"[Kal] LT",lastWeek:"[Fattlo] dddd[,] LT",sameElse:"L"},relativeTime:{future:"%s",past:"%s adim",s:bs,ss:bs,m:bs,mm:bs,h:bs,hh:bs,d:bs,dd:bs,M:bs,MM:bs,y:bs,yy:bs},dayOfMonthOrdinalParse:/\d{1,2}(er)/,ordinal:function(e,a){switch(a){case"D":return e+"er";default:case"M":case"Q":case"DDD":case"d":case"w":case"W":return e}},week:{dow:0,doy:3},meridiemParse:/rati|sokallim|donparam|sanje/,meridiemHour:function(e,a){return 12===e&&(e=0),"rati"===a?e<4?e:e+12:"sokallim"===a?e:"donparam"===a?12<e?e:e+12:"sanje"===a?e+12:void 0},meridiem:function(e,a,t){return e<4?"rati":e<12?"sokallim":e<16?"donparam":e<20?"sanje":"rati"}});var 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[\u05d1]MMMM YYYY",LLL:"D [\u05d1]MMMM YYYY HH:mm",LLLL:"dddd, D [\u05d1]MMMM YYYY HH:mm",l:"D/M/YYYY",ll:"D MMM YYYY",lll:"D MMM YYYY HH:mm",llll:"ddd, D MMM YYYY HH:mm"},calendar:{sameDay:"[\u05d4\u05d9\u05d5\u05dd \u05d1\u05be]LT",nextDay:"[\u05de\u05d7\u05e8 \u05d1\u05be]LT",nextWeek:"dddd [\u05d1\u05e9\u05e2\u05d4] LT",lastDay:"[\u05d0\u05ea\u05de\u05d5\u05dc \u05d1\u05be]LT",lastWeek:"[\u05d1\u05d9\u05d5\u05dd] dddd [\u05d4\u05d0\u05d7\u05e8\u05d5\u05df \u05d1\u05e9\u05e2\u05d4] LT",sameElse:"L"},relativeTime:{future:"\u05d1\u05e2\u05d5\u05d3 %s",past:"\u05dc\u05e4\u05e0\u05d9 %s",s:"\u05de\u05e1\u05e4\u05e8 \u05e9\u05e0\u05d9\u05d5\u05ea",ss:"%d \u05e9\u05e0\u05d9\u05d5\u05ea",m:"\u05d3\u05e7\u05d4",mm:"%d \u05d3\u05e7\u05d5\u05ea",h:"\u05e9\u05e2\u05d4",hh:function(e){return 2===e?"\u05e9\u05e2\u05ea\u05d9\u05d9\u05dd":e+" \u05e9\u05e2\u05d5\u05ea"},d:"\u05d9\u05d5\u05dd",dd:function(e){return 2===e?"\u05d9\u05d5\u05de\u05d9\u05d9\u05dd":e+" 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s+=1===e?"sekunda":2===e||3===e||4===e?"sekunde":"sekundi";case"m":return a?"jedna minuta":"jedne minute";case"mm":return s+=1!==e&&(2===e||3===e||4===e)?"minute":"minuta";case"h":return a?"jedan sat":"jednog sata";case"hh":return s+=1===e?"sat":2===e||3===e||4===e?"sata":"sati";case"dd":return s+=1===e?"dan":"dana";case"MM":return s+=1===e?"mjesec":2===e||3===e||4===e?"mjeseca":"mjeseci";case"yy":return s+=1!==e&&(2===e||3===e||4===e)?"godine":"godina"}}c.defineLocale("hi",{months:{format:"\u091c\u0928\u0935\u0930\u0940_\u092b\u093c\u0930\u0935\u0930\u0940_\u092e\u093e\u0930\u094d\u091a_\u0905\u092a\u094d\u0930\u0948\u0932_\u092e\u0908_\u091c\u0942\u0928_\u091c\u0941\u0932\u093e\u0908_\u0905\u0917\u0938\u094d\u0924_\u0938\u093f\u0924\u092e\u094d\u092c\u0930_\u0905\u0915\u094d\u091f\u0942\u092c\u0930_\u0928\u0935\u092e\u094d\u092c\u0930_\u0926\u093f\u0938\u092e\u094d\u092c\u0930".split("_"),standalone:"\u091c\u0928\u0935\u0930\u0940_\u092b\u0930\u0935\u0930\u0940_\u092e\u093e\u0930\u094d\u091a_\u0905\u092a\u094d\u0930\u0948\u0932_\u092e\u0908_\u091c\u0942\u0928_\u091c\u0941\u0932\u093e\u0908_\u0905\u0917\u0938\u094d\u0924_\u0938\u093f\u0924\u0902\u092c\u0930_\u0905\u0915\u094d\u091f\u0942\u092c\u0930_\u0928\u0935\u0902\u092c\u0930_\u0926\u093f\u0938\u0902\u092c\u0930".split("_")},monthsShort:"\u091c\u0928._\u092b\u093c\u0930._\u092e\u093e\u0930\u094d\u091a_\u0905\u092a\u094d\u0930\u0948._\u092e\u0908_\u091c\u0942\u0928_\u091c\u0941\u0932._\u0905\u0917._\u0938\u093f\u0924._\u0905\u0915\u094d\u091f\u0942._\u0928\u0935._\u0926\u093f\u0938.".split("_"),weekdays:"\u0930\u0935\u093f\u0935\u093e\u0930_\u0938\u094b\u092e\u0935\u093e\u0930_\u092e\u0902\u0917\u0932\u0935\u093e\u0930_\u092c\u0941\u0927\u0935\u093e\u0930_\u0917\u0941\u0930\u0942\u0935\u093e\u0930_\u0936\u0941\u0915\u094d\u0930\u0935\u093e\u0930_\u0936\u0928\u093f\u0935\u093e\u0930".split("_"),weekdaysShort:"\u0930\u0935\u093f_\u0938\u094b\u092e_\u092e\u0902\u0917\u0932_\u092c\u0941\u0927_\u0917\u0941\u0930\u0942_\u0936\u0941\u0915\u094d\u0930_\u0936\u0928\u093f".split("_"),weekdaysMin:"\u0930_\u0938\u094b_\u092e\u0902_\u092c\u0941_\u0917\u0941_\u0936\u0941_\u0936".split("_"),longDateFormat:{LT:"A h:mm \u092c\u091c\u0947",LTS:"A h:mm:ss \u092c\u091c\u0947",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY, A h:mm \u092c\u091c\u0947",LLLL:"dddd, D MMMM YYYY, A h:mm \u092c\u091c\u0947"},monthsParse:a,longMonthsParse:a,shortMonthsParse:[/^\u091c\u0928/i,/^\u092b\u093c\u0930/i,/^\u092e\u093e\u0930\u094d\u091a/i,/^\u0905\u092a\u094d\u0930\u0948/i,/^\u092e\u0908/i,/^\u091c\u0942\u0928/i,/^\u091c\u0941\u0932/i,/^\u0905\u0917/i,/^\u0938\u093f\u0924/i,/^\u0905\u0915\u094d\u091f\u0942/i,/^\u0928\u0935/i,/^\u0926\u093f\u0938/i],monthsRegex:/^(\u091c\u0928\u0935\u0930\u0940|\u091c\u0928\.?|\u092b\u093c\u0930\u0935\u0930\u0940|\u092b\u0930\u0935\u0930\u0940|\u092b\u093c\u0930\.?|\u092e\u093e\u0930\u094d\u091a?|\u0905\u092a\u094d\u0930\u0948\u0932|\u0905\u092a\u094d\u0930\u0948\.?|\u092e\u0908?|\u091c\u0942\u0928?|\u091c\u0941\u0932\u093e\u0908|\u091c\u0941\u0932\.?|\u0905\u0917\u0938\u094d\u0924|\u0905\u0917\.?|\u0938\u093f\u0924\u092e\u094d\u092c\u0930|\u0938\u093f\u0924\u0902\u092c\u0930|\u0938\u093f\u0924\.?|\u0905\u0915\u094d\u091f\u0942\u092c\u0930|\u0905\u0915\u094d\u091f\u0942\.?|\u0928\u0935\u092e\u094d\u092c\u0930|\u0928\u0935\u0902\u092c\u0930|\u0928\u0935\.?|\u0926\u093f\u0938\u092e\u094d\u092c\u0930|\u0926\u093f\u0938\u0902\u092c\u0930|\u0926\u093f\u0938\.?)/i,monthsShortRegex:/^(\u091c\u0928\u0935\u0930\u0940|\u091c\u0928\.?|\u092b\u093c\u0930\u0935\u0930\u0940|\u092b\u0930\u0935\u0930\u0940|\u092b\u093c\u0930\.?|\u092e\u093e\u0930\u094d\u091a?|\u0905\u092a\u094d\u0930\u0948\u0932|\u0905\u092a\u094d\u0930\u0948\.?|\u092e\u0908?|\u091c\u0942\u0928?|\u091c\u0941\u0932\u093e\u0908|\u091c\u0941\u0932\.?|\u0905\u0917\u0938\u094d\u0924|\u0905\u0917\.?|\u0938\u093f\u0924\u092e\u094d\u092c\u0930|\u0938\u093f\u0924\u0902\u092c\u0930|\u0938\u093f\u0924\.?|\u0905\u0915\u094d\u091f\u0942\u092c\u0930|\u0905\u0915\u094d\u091f\u0942\.?|\u0928\u0935\u092e\u094d\u092c\u0930|\u0928\u0935\u0902\u092c\u0930|\u0928\u0935\.?|\u0926\u093f\u0938\u092e\u094d\u092c\u0930|\u0926\u093f\u0938\u0902\u092c\u0930|\u0926\u093f\u0938\.?)/i,monthsStrictRegex:/^(\u091c\u0928\u0935\u0930\u0940?|\u092b\u093c\u0930\u0935\u0930\u0940|\u092b\u0930\u0935\u0930\u0940?|\u092e\u093e\u0930\u094d\u091a?|\u0905\u092a\u094d\u0930\u0948\u0932?|\u092e\u0908?|\u091c\u0942\u0928?|\u091c\u0941\u0932\u093e\u0908?|\u0905\u0917\u0938\u094d\u0924?|\u0938\u093f\u0924\u092e\u094d\u092c\u0930|\u0938\u093f\u0924\u0902\u092c\u0930|\u0938\u093f\u0924?\.?|\u0905\u0915\u094d\u091f\u0942\u092c\u0930|\u0905\u0915\u094d\u091f\u0942\.?|\u0928\u0935\u092e\u094d\u092c\u0930|\u0928\u0935\u0902\u092c\u0930?|\u0926\u093f\u0938\u092e\u094d\u092c\u0930|\u0926\u093f\u0938\u0902\u092c\u0930?)/i,monthsShortStrictRegex:/^(\u091c\u0928\.?|\u092b\u093c\u0930\.?|\u092e\u093e\u0930\u094d\u091a?|\u0905\u092a\u094d\u0930\u0948\.?|\u092e\u0908?|\u091c\u0942\u0928?|\u091c\u0941\u0932\.?|\u0905\u0917\.?|\u0938\u093f\u0924\.?|\u0905\u0915\u094d\u091f\u0942\.?|\u0928\u0935\.?|\u0926\u093f\u0938\.?)/i,calendar:{sameDay:"[\u0906\u091c] LT",nextDay:"[\u0915\u0932] LT",nextWeek:"dddd, LT",lastDay:"[\u0915\u0932] LT",lastWeek:"[\u092a\u093f\u091b\u0932\u0947] dddd, LT",sameElse:"L"},relativeTime:{future:"%s \u092e\u0947\u0902",past:"%s \u092a\u0939\u0932\u0947",s:"\u0915\u0941\u091b \u0939\u0940 \u0915\u094d\u0937\u0923",ss:"%d \u0938\u0947\u0915\u0902\u0921",m:"\u090f\u0915 \u092e\u093f\u0928\u091f",mm:"%d \u092e\u093f\u0928\u091f",h:"\u090f\u0915 \u0918\u0902\u091f\u093e",hh:"%d \u0918\u0902\u091f\u0947",d:"\u090f\u0915 \u0926\u093f\u0928",dd:"%d \u0926\u093f\u0928",M:"\u090f\u0915 \u092e\u0939\u0940\u0928\u0947",MM:"%d \u092e\u0939\u0940\u0928\u0947",y:"\u090f\u0915 \u0935\u0930\u094d\u0937",yy:"%d \u0935\u0930\u094d\u0937"},preparse:function(e){return e.replace(/[\u0967\u0968\u0969\u096a\u096b\u096c\u096d\u096e\u096f\u0966]/g,function(e){return js[e]})},postformat:function(e){return e.replace(/\d/g,function(e){return vs[e]})},meridiemParse:/\u0930\u093e\u0924|\u0938\u0941\u092c\u0939|\u0926\u094b\u092a\u0939\u0930|\u0936\u093e\u092e/,meridiemHour:function(e,a){return 12===e&&(e=0),"\u0930\u093e\u0924"===a?e<4?e:e+12:"\u0938\u0941\u092c\u0939"===a?e:"\u0926\u094b\u092a\u0939\u0930"===a?10<=e?e:e+12:"\u0936\u093e\u092e"===a?e+12:void 0},meridiem:function(e,a,t){return 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anni"},dayOfMonthOrdinalParse:/\d{1,2}\xba/,ordinal:"%d\xba",week:{dow:1,doy:4}}),c.defineLocale("ja",{eras:[{since:"2019-05-01",offset:1,name:"\u4ee4\u548c",narrow:"\u32ff",abbr:"R"},{since:"1989-01-08",until:"2019-04-30",offset:1,name:"\u5e73\u6210",narrow:"\u337b",abbr:"H"},{since:"1926-12-25",until:"1989-01-07",offset:1,name:"\u662d\u548c",narrow:"\u337c",abbr:"S"},{since:"1912-07-30",until:"1926-12-24",offset:1,name:"\u5927\u6b63",narrow:"\u337d",abbr:"T"},{since:"1873-01-01",until:"1912-07-29",offset:6,name:"\u660e\u6cbb",narrow:"\u337e",abbr:"M"},{since:"0001-01-01",until:"1873-12-31",offset:1,name:"\u897f\u66a6",narrow:"AD",abbr:"AD"},{since:"0000-12-31",until:-1/0,offset:1,name:"\u7d00\u5143\u524d",narrow:"BC",abbr:"BC"}],eraYearOrdinalRegex:/(\u5143|\d+)\u5e74/,eraYearOrdinalParse:function(e,a){return"\u5143"===a[1]?1:parseInt(a[1]||e,10)},months:"1\u6708_2\u6708_3\u6708_4\u6708_5\u6708_6\u6708_7\u6708_8\u6708_9\u6708_10\u6708_11\u6708_12\u6708".split("_"),monthsShort:"1\u6708_2\u6708_3\u6708_4\u6708_5\u6708_6\u6708_7\u6708_8\u6708_9\u6708_10\u6708_11\u6708_12\u6708".split("_"),weekdays:"\u65e5\u66dc\u65e5_\u6708\u66dc\u65e5_\u706b\u66dc\u65e5_\u6c34\u66dc\u65e5_\u6728\u66dc\u65e5_\u91d1\u66dc\u65e5_\u571f\u66dc\u65e5".split("_"),weekdaysShort:"\u65e5_\u6708_\u706b_\u6c34_\u6728_\u91d1_\u571f".split("_"),weekdaysMin:"\u65e5_\u6708_\u706b_\u6c34_\u6728_\u91d1_\u571f".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"YYYY/MM/DD",LL:"YYYY\u5e74M\u6708D\u65e5",LLL:"YYYY\u5e74M\u6708D\u65e5 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e}},relativeTime:{future:"%s\u5f8c",past:"%s\u524d",s:"\u6570\u79d2",ss:"%d\u79d2",m:"1\u5206",mm:"%d\u5206",h:"1\u6642\u9593",hh:"%d\u6642\u9593",d:"1\u65e5",dd:"%d\u65e5",M:"1\u30f6\u6708",MM:"%d\u30f6\u6708",y:"1\u5e74",yy:"%d\u5e74"}}),c.defineLocale("jv",{months:"Januari_Februari_Maret_April_Mei_Juni_Juli_Agustus_September_Oktober_Nopember_Desember".split("_"),monthsShort:"Jan_Feb_Mar_Apr_Mei_Jun_Jul_Ags_Sep_Okt_Nop_Des".split("_"),weekdays:"Minggu_Senen_Seloso_Rebu_Kemis_Jemuwah_Septu".split("_"),weekdaysShort:"Min_Sen_Sel_Reb_Kem_Jem_Sep".split("_"),weekdaysMin:"Mg_Sn_Sl_Rb_Km_Jm_Sp".split("_"),longDateFormat:{LT:"HH.mm",LTS:"HH.mm.ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY [pukul] HH.mm",LLLL:"dddd, D MMMM YYYY [pukul] HH.mm"},meridiemParse:/enjing|siyang|sonten|ndalu/,meridiemHour:function(e,a){return 12===e&&(e=0),"enjing"===a?e:"siyang"===a?11<=e?e:e+12:"sonten"===a||"ndalu"===a?e+12:void 0},meridiem:function(e,a,t){return e<11?"enjing":e<15?"siyang":e<19?"sonten":"ndalu"},calendar:{sameDay:"[Dinten puniko pukul] LT",nextDay:"[Mbenjang pukul] LT",nextWeek:"dddd [pukul] LT",lastDay:"[Kala wingi pukul] LT",lastWeek:"dddd [kepengker pukul] LT",sameElse:"L"},relativeTime:{future:"wonten ing %s",past:"%s ingkang kepengker",s:"sawetawis detik",ss:"%d detik",m:"setunggal menit",mm:"%d menit",h:"setunggal jam",hh:"%d jam",d:"sedinten",dd:"%d dinten",M:"sewulan",MM:"%d wulan",y:"setaun",yy:"%d taun"},week:{dow:1,doy:7}}),c.defineLocale("ka",{months:"\u10d8\u10d0\u10dc\u10d5\u10d0\u10e0\u10d8_\u10d7\u10d4\u10d1\u10d4\u10e0\u10d5\u10d0\u10da\u10d8_\u10db\u10d0\u10e0\u10e2\u10d8_\u10d0\u10de\u10e0\u10d8\u10da\u10d8_\u10db\u10d0\u10d8\u10e1\u10d8_\u10d8\u10d5\u10dc\u10d8\u10e1\u10d8_\u10d8\u10d5\u10da\u10d8\u10e1\u10d8_\u10d0\u10d2\u10d5\u10d8\u10e1\u10e2\u10dd_\u10e1\u10d4\u10e5\u10e2\u10d4\u10db\u10d1\u10d4\u10e0\u10d8_\u10dd\u10e5\u10e2\u10dd\u10db\u10d1\u10d4\u10e0\u10d8_\u10dc\u10dd\u10d4\u10db\u10d1\u10d4\u10e0\u10d8_\u10d3\u10d4\u10d9\u10d4\u10db\u10d1\u10d4\u10e0\u10d8".split("_"),monthsShort:"\u10d8\u10d0\u10dc_\u10d7\u10d4\u10d1_\u10db\u10d0\u10e0_\u10d0\u10de\u10e0_\u10db\u10d0\u10d8_\u10d8\u10d5\u10dc_\u10d8\u10d5\u10da_\u10d0\u10d2\u10d5_\u10e1\u10d4\u10e5_\u10dd\u10e5\u10e2_\u10dc\u10dd\u10d4_\u10d3\u10d4\u10d9".split("_"),weekdays:{standalone:"\u10d9\u10d5\u10d8\u10e0\u10d0_\u10dd\u10e0\u10e8\u10d0\u10d1\u10d0\u10d7\u10d8_\u10e1\u10d0\u10db\u10e8\u10d0\u10d1\u10d0\u10d7\u10d8_\u10dd\u10d7\u10ee\u10e8\u10d0\u10d1\u10d0\u10d7\u10d8_\u10ee\u10e3\u10d7\u10e8\u10d0\u10d1\u10d0\u10d7\u10d8_\u10de\u10d0\u10e0\u10d0\u10e1\u10d9\u10d4\u10d5\u10d8_\u10e8\u10d0\u10d1\u10d0\u10d7\u10d8".split("_"),format:"\u10d9\u10d5\u10d8\u10e0\u10d0\u10e1_\u10dd\u10e0\u10e8\u10d0\u10d1\u10d0\u10d7\u10e1_\u10e1\u10d0\u10db\u10e8\u10d0\u10d1\u10d0\u10d7\u10e1_\u10dd\u10d7\u10ee\u10e8\u10d0\u10d1\u10d0\u10d7\u10e1_\u10ee\u10e3\u10d7\u10e8\u10d0\u10d1\u10d0\u10d7\u10e1_\u10de\u10d0\u10e0\u10d0\u10e1\u10d9\u10d4\u10d5\u10e1_\u10e8\u10d0\u10d1\u10d0\u10d7\u10e1".split("_"),isFormat:/(\u10ec\u10d8\u10dc\u10d0|\u10e8\u10d4\u10db\u10d3\u10d4\u10d2)/},weekdaysShort:"\u10d9\u10d5\u10d8_\u10dd\u10e0\u10e8_\u10e1\u10d0\u10db_\u10dd\u10d7\u10ee_\u10ee\u10e3\u10d7_\u10de\u10d0\u10e0_\u10e8\u10d0\u10d1".split("_"),weekdaysMin:"\u10d9\u10d5_\u10dd\u10e0_\u10e1\u10d0_\u10dd\u10d7_\u10ee\u10e3_\u10de\u10d0_\u10e8\u10d0".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd, D MMMM YYYY HH:mm"},calendar:{sameDay:"[\u10d3\u10e6\u10d4\u10e1] LT[-\u10d6\u10d4]",nextDay:"[\u10ee\u10d5\u10d0\u10da] LT[-\u10d6\u10d4]",lastDay:"[\u10d2\u10e3\u10e8\u10d8\u10dc] LT[-\u10d6\u10d4]",nextWeek:"[\u10e8\u10d4\u10db\u10d3\u10d4\u10d2] dddd LT[-\u10d6\u10d4]",lastWeek:"[\u10ec\u10d8\u10dc\u10d0] dddd LT-\u10d6\u10d4",sameElse:"L"},relativeTime:{future:function(e){return e.replace(/(\u10ec\u10d0\u10db|\u10ec\u10e3\u10d7|\u10e1\u10d0\u10d0\u10d7|\u10ec\u10d4\u10da|\u10d3\u10e6|\u10d7\u10d5)(\u10d8|\u10d4)/,function(e,a,t){return"\u10d8"===t?a+"\u10e8\u10d8":a+t+"\u10e8\u10d8"})},past:function(e){return/(\u10ec\u10d0\u10db\u10d8|\u10ec\u10e3\u10d7\u10d8|\u10e1\u10d0\u10d0\u10d7\u10d8|\u10d3\u10e6\u10d4|\u10d7\u10d5\u10d4)/.test(e)?e.replace(/(\u10d8|\u10d4)$/,"\u10d8\u10e1 \u10ec\u10d8\u10dc"):/\u10ec\u10d4\u10da\u10d8/.test(e)?e.replace(/\u10ec\u10d4\u10da\u10d8$/,"\u10ec\u10da\u10d8\u10e1 \u10ec\u10d8\u10dc"):e},s:"\u10e0\u10d0\u10db\u10d3\u10d4\u10dc\u10d8\u10db\u10d4 \u10ec\u10d0\u10db\u10d8",ss:"%d \u10ec\u10d0\u10db\u10d8",m:"\u10ec\u10e3\u10d7\u10d8",mm:"%d \u10ec\u10e3\u10d7\u10d8",h:"\u10e1\u10d0\u10d0\u10d7\u10d8",hh:"%d \u10e1\u10d0\u10d0\u10d7\u10d8",d:"\u10d3\u10e6\u10d4",dd:"%d \u10d3\u10e6\u10d4",M:"\u10d7\u10d5\u10d4",MM:"%d \u10d7\u10d5\u10d4",y:"\u10ec\u10d4\u10da\u10d8",yy:"%d \u10ec\u10d4\u10da\u10d8"},dayOfMonthOrdinalParse:/0|1-\u10da\u10d8|\u10db\u10d4-\d{1,2}|\d{1,2}-\u10d4/,ordinal:function(e){return 0===e?e:1===e?e+"-\u10da\u10d8":e<20||e<=100&&e%20==0||e%100==0?"\u10db\u10d4-"+e:e+"-\u10d4"},week:{dow:1,doy:7}});var Fs={0:"-\u0448\u0456",1:"-\u0448\u0456",2:"-\u0448\u0456",3:"-\u0448\u0456",4:"-\u0448\u0456",5:"-\u0448\u0456",6:"-\u0448\u044b",7:"-\u0448\u0456",8:"-\u0448\u0456",9:"-\u0448\u044b",10:"-\u0448\u044b",20:"-\u0448\u044b",30:"-\u0448\u044b",40:"-\u0448\u044b",50:"-\u0448\u0456",60:"-\u0448\u044b",70:"-\u0448\u0456",80:"-\u0448\u0456",90:"-\u0448\u044b",100:"-\u0448\u0456"},zs=(c.defineLocale("kk",{months:"\u049b\u0430\u04a3\u0442\u0430\u0440_\u0430\u049b\u043f\u0430\u043d_\u043d\u0430\u0443\u0440\u044b\u0437_\u0441\u04d9\u0443\u0456\u0440_\u043c\u0430\u043c\u044b\u0440_\u043c\u0430\u0443\u0441\u044b\u043c_\u0448\u0456\u043b\u0434\u0435_\u0442\u0430\u043c\u044b\u0437_\u049b\u044b\u0440\u043a\u04af\u0439\u0435\u043a_\u049b\u0430\u0437\u0430\u043d_\u049b\u0430\u0440\u0430\u0448\u0430_\u0436\u0435\u043b\u0442\u043e\u049b\u0441\u0430\u043d".split("_"),monthsShort:"\u049b\u0430\u04a3_\u0430\u049b\u043f_\u043d\u0430\u0443_\u0441\u04d9\u0443_\u043c\u0430\u043c_\u043c\u0430\u0443_\u0448\u0456\u043b_\u0442\u0430\u043c_\u049b\u044b\u0440_\u049b\u0430\u0437_\u049b\u0430\u0440_\u0436\u0435\u043b".split("_"),weekdays:"\u0436\u0435\u043a\u0441\u0435\u043d\u0431\u0456_\u0434\u04af\u0439\u0441\u0435\u043d\u0431\u0456_\u0441\u0435\u0439\u0441\u0435\u043d\u0431\u0456_\u0441\u04d9\u0440\u0441\u0435\u043d\u0431\u0456_\u0431\u0435\u0439\u0441\u0435\u043d\u0431\u0456_\u0436\u04b1\u043c\u0430_\u0441\u0435\u043d\u0431\u0456".split("_"),weekdaysShort:"\u0436\u0435\u043a_\u0434\u04af\u0439_\u0441\u0435\u0439_\u0441\u04d9\u0440_\u0431\u0435\u0439_\u0436\u04b1\u043c_\u0441\u0435\u043d".split("_"),weekdaysMin:"\u0436\u043a_\u0434\u0439_\u0441\u0439_\u0441\u0440_\u0431\u0439_\u0436\u043c_\u0441\u043d".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD.MM.YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd, D MMMM YYYY HH:mm"},calendar:{sameDay:"[\u0411\u04af\u0433\u0456\u043d \u0441\u0430\u0493\u0430\u0442] LT",nextDay:"[\u0415\u0440\u0442\u0435\u04a3 \u0441\u0430\u0493\u0430\u0442] LT",nextWeek:"dddd [\u0441\u0430\u0493\u0430\u0442] LT",lastDay:"[\u041a\u0435\u0448\u0435 \u0441\u0430\u0493\u0430\u0442] LT",lastWeek:"[\u04e8\u0442\u043a\u0435\u043d \u0430\u043f\u0442\u0430\u043d\u044b\u04a3] dddd [\u0441\u0430\u0493\u0430\u0442] LT",sameElse:"L"},relativeTime:{future:"%s \u0456\u0448\u0456\u043d\u0434\u0435",past:"%s \u0431\u04b1\u0440\u044b\u043d",s:"\u0431\u0456\u0440\u043d\u0435\u0448\u0435 \u0441\u0435\u043a\u0443\u043d\u0434",ss:"%d \u0441\u0435\u043a\u0443\u043d\u0434",m:"\u0431\u0456\u0440 \u043c\u0438\u043d\u0443\u0442",mm:"%d \u043c\u0438\u043d\u0443\u0442",h:"\u0431\u0456\u0440 \u0441\u0430\u0493\u0430\u0442",hh:"%d \u0441\u0430\u0493\u0430\u0442",d:"\u0431\u0456\u0440 \u043a\u04af\u043d",dd:"%d \u043a\u04af\u043d",M:"\u0431\u0456\u0440 \u0430\u0439",MM:"%d \u0430\u0439",y:"\u0431\u0456\u0440 \u0436\u044b\u043b",yy:"%d \u0436\u044b\u043b"},dayOfMonthOrdinalParse:/\d{1,2}-(\u0448\u0456|\u0448\u044b)/,ordinal:function(e){return e+(Fs[e]||Fs[e%10]||Fs[100<=e?100:null])},week:{dow:1,doy:7}}),{1:"\u17e1",2:"\u17e2",3:"\u17e3",4:"\u17e4",5:"\u17e5",6:"\u17e6",7:"\u17e7",8:"\u17e8",9:"\u17e9",0:"\u17e0"}),Ns={"\u17e1":"1","\u17e2":"2","\u17e3":"3","\u17e4":"4","\u17e5":"5","\u17e6":"6","\u17e7":"7","\u17e8":"8","\u17e9":"9","\u17e0":"0"},Js=(c.defineLocale("km",{months:"\u1798\u1780\u179a\u17b6_\u1780\u17bb\u1798\u17d2\u1797\u17c8_\u1798\u17b8\u1793\u17b6_\u1798\u17c1\u179f\u17b6_\u17a7\u179f\u1797\u17b6_\u1798\u17b7\u1790\u17bb\u1793\u17b6_\u1780\u1780\u17d2\u1780\u178a\u17b6_\u179f\u17b8\u17a0\u17b6_\u1780\u1789\u17d2\u1789\u17b6_\u178f\u17bb\u179b\u17b6_\u179c\u17b7\u1785\u17d2\u1786\u17b7\u1780\u17b6_\u1792\u17d2\u1793\u17bc".split("_"),monthsShort:"\u1798\u1780\u179a\u17b6_\u1780\u17bb\u1798\u17d2\u1797\u17c8_\u1798\u17b8\u1793\u17b6_\u1798\u17c1\u179f\u17b6_\u17a7\u179f\u1797\u17b6_\u1798\u17b7\u1790\u17bb\u1793\u17b6_\u1780\u1780\u17d2\u1780\u178a\u17b6_\u179f\u17b8\u17a0\u17b6_\u1780\u1789\u17d2\u1789\u17b6_\u178f\u17bb\u179b\u17b6_\u179c\u17b7\u1785\u17d2\u1786\u17b7\u1780\u17b6_\u1792\u17d2\u1793\u17bc".split("_"),weekdays:"\u17a2\u17b6\u1791\u17b7\u178f\u17d2\u1799_\u1785\u17d0\u1793\u17d2\u1791_\u17a2\u1784\u17d2\u1782\u17b6\u179a_\u1796\u17bb\u1792_\u1796\u17d2\u179a\u17a0\u179f\u17d2\u1794\u178f\u17b7\u17cd_\u179f\u17bb\u1780\u17d2\u179a_\u179f\u17c5\u179a\u17cd".split("_"),weekdaysShort:"\u17a2\u17b6_\u1785_\u17a2_\u1796_\u1796\u17d2\u179a_\u179f\u17bb_\u179f".split("_"),weekdaysMin:"\u17a2\u17b6_\u1785_\u17a2_\u1796_\u1796\u17d2\u179a_\u179f\u17bb_\u179f".split("_"),weekdaysParseExact:!0,longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd, D MMMM YYYY HH:mm"},meridiemParse:/\u1796\u17d2\u179a\u17b9\u1780|\u179b\u17d2\u1784\u17b6\u1785/,isPM:function(e){return"\u179b\u17d2\u1784\u17b6\u1785"===e},meridiem:function(e,a,t){return e<12?"\u1796\u17d2\u179a\u17b9\u1780":"\u179b\u17d2\u1784\u17b6\u1785"},calendar:{sameDay:"[\u1790\u17d2\u1784\u17c3\u1793\u17c1\u17c7 \u1798\u17c9\u17c4\u1784] LT",nextDay:"[\u179f\u17d2\u17a2\u17c2\u1780 \u1798\u17c9\u17c4\u1784] LT",nextWeek:"dddd [\u1798\u17c9\u17c4\u1784] LT",lastDay:"[\u1798\u17d2\u179f\u17b7\u179b\u1798\u17b7\u1789 \u1798\u17c9\u17c4\u1784] LT",lastWeek:"dddd [\u179f\u1794\u17d2\u178f\u17b6\u17a0\u17cd\u1798\u17bb\u1793] [\u1798\u17c9\u17c4\u1784] LT",sameElse:"L"},relativeTime:{future:"%s\u1791\u17c0\u178f",past:"%s\u1798\u17bb\u1793",s:"\u1794\u17c9\u17bb\u1793\u17d2\u1798\u17b6\u1793\u179c\u17b7\u1793\u17b6\u1791\u17b8",ss:"%d \u179c\u17b7\u1793\u17b6\u1791\u17b8",m:"\u1798\u17bd\u1799\u1793\u17b6\u1791\u17b8",mm:"%d \u1793\u17b6\u1791\u17b8",h:"\u1798\u17bd\u1799\u1798\u17c9\u17c4\u1784",hh:"%d \u1798\u17c9\u17c4\u1784",d:"\u1798\u17bd\u1799\u1790\u17d2\u1784\u17c3",dd:"%d \u1790\u17d2\u1784\u17c3",M:"\u1798\u17bd\u1799\u1781\u17c2",MM:"%d \u1781\u17c2",y:"\u1798\u17bd\u1799\u1786\u17d2\u1793\u17b6\u17c6",yy:"%d \u1786\u17d2\u1793\u17b6\u17c6"},dayOfMonthOrdinalParse:/\u1791\u17b8\d{1,2}/,ordinal:"\u1791\u17b8%d",preparse:function(e){return e.replace(/[\u17e1\u17e2\u17e3\u17e4\u17e5\u17e6\u17e7\u17e8\u17e9\u17e0]/g,function(e){return Ns[e]})},postformat:function(e){return e.replace(/\d/g,function(e){return zs[e]})},week:{dow:1,doy:4}}),{1:"\u0ce7",2:"\u0ce8",3:"\u0ce9",4:"\u0cea",5:"\u0ceb",6:"\u0cec",7:"\u0ced",8:"\u0cee",9:"\u0cef",0:"\u0ce6"}),Rs={"\u0ce7":"1","\u0ce8":"2","\u0ce9":"3","\u0cea":"4","\u0ceb":"5","\u0cec":"6","\u0ced":"7","\u0cee":"8","\u0cef":"9","\u0ce6":"0"};function O(e,a,t,s){e={s:["\xe7end san\xeeye","\xe7end san\xeeyeyan"],ss:[e+" san\xeeye",e+" san\xeeyeyan"],m:["deq\xeeqeyek","deq\xeeqeyek\xea"],mm:[e+" deq\xeeqe",e+" deq\xeeqeyan"],h:["saetek","saetek\xea"],hh:[e+" saet",e+" saetan"],d:["rojek","rojek\xea"],dd:[e+" roj",e+" rojan"],w:["hefteyek","hefteyek\xea"],ww:[e+" hefte",e+" hefteyan"],M:["mehek","mehek\xea"],MM:[e+" meh",e+" mehan"],y:["salek","salek\xea"],yy:[e+" sal",e+" salan"]};return a?e[t][0]:e[t][1]}c.defineLocale("kn",{months:"\u0c9c\u0ca8\u0cb5\u0cb0\u0cbf_\u0cab\u0cc6\u0cac\u0ccd\u0cb0\u0cb5\u0cb0\u0cbf_\u0cae\u0cbe\u0cb0\u0ccd\u0c9a\u0ccd_\u0c8f\u0caa\u0ccd\u0cb0\u0cbf\u0cb2\u0ccd_\u0cae\u0cc6\u0cd5_\u0c9c\u0cc2\u0ca8\u0ccd_\u0c9c\u0cc1\u0cb2\u0cc6\u0cd6_\u0c86\u0c97\u0cb8\u0ccd\u0c9f\u0ccd_\u0cb8\u0cc6\u0caa\u0ccd\u0c9f\u0cc6\u0c82\u0cac\u0cb0\u0ccd_\u0c85\u0c95\u0ccd\u0c9f\u0cc6\u0cc2\u0cd5\u0cac\u0cb0\u0ccd_\u0ca8\u0cb5\u0cc6\u0c82\u0cac\u0cb0\u0ccd_\u0ca1\u0cbf\u0cb8\u0cc6\u0c82\u0cac\u0cb0\u0ccd".split("_"),monthsShort:"\u0c9c\u0ca8_\u0cab\u0cc6\u0cac\u0ccd\u0cb0_\u0cae\u0cbe\u0cb0\u0ccd\u0c9a\u0ccd_\u0c8f\u0caa\u0ccd\u0cb0\u0cbf\u0cb2\u0ccd_\u0cae\u0cc6\u0cd5_\u0c9c\u0cc2\u0ca8\u0ccd_\u0c9c\u0cc1\u0cb2\u0cc6\u0cd6_\u0c86\u0c97\u0cb8\u0ccd\u0c9f\u0ccd_\u0cb8\u0cc6\u0caa\u0ccd\u0c9f\u0cc6\u0c82_\u0c85\u0c95\u0ccd\u0c9f\u0cc6\u0cc2\u0cd5_\u0ca8\u0cb5\u0cc6\u0c82_\u0ca1\u0cbf\u0cb8\u0cc6\u0c82".split("_"),monthsParseExact:!0,weekdays:"\u0cad\u0cbe\u0ca8\u0cc1\u0cb5\u0cbe\u0cb0_\u0cb8\u0cc6\u0cc2\u0cd5\u0cae\u0cb5\u0cbe\u0cb0_\u0cae\u0c82\u0c97\u0cb3\u0cb5\u0cbe\u0cb0_\u0cac\u0cc1\u0ca7\u0cb5\u0cbe\u0cb0_\u0c97\u0cc1\u0cb0\u0cc1\u0cb5\u0cbe\u0cb0_\u0cb6\u0cc1\u0c95\u0ccd\u0cb0\u0cb5\u0cbe\u0cb0_\u0cb6\u0ca8\u0cbf\u0cb5\u0cbe\u0cb0".split("_"),weekdaysShort:"\u0cad\u0cbe\u0ca8\u0cc1_\u0cb8\u0cc6\u0cc2\u0cd5\u0cae_\u0cae\u0c82\u0c97\u0cb3_\u0cac\u0cc1\u0ca7_\u0c97\u0cc1\u0cb0\u0cc1_\u0cb6\u0cc1\u0c95\u0ccd\u0cb0_\u0cb6\u0ca8\u0cbf".split("_"),weekdaysMin:"\u0cad\u0cbe_\u0cb8\u0cc6\u0cc2\u0cd5_\u0cae\u0c82_\u0cac\u0cc1_\u0c97\u0cc1_\u0cb6\u0cc1_\u0cb6".split("_"),longDateFormat:{LT:"A h:mm",LTS:"A h:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY, A h:mm",LLLL:"dddd, D MMMM YYYY, A h:mm"},calendar:{sameDay:"[\u0c87\u0c82\u0ca6\u0cc1] LT",nextDay:"[\u0ca8\u0cbe\u0cb3\u0cc6] LT",nextWeek:"dddd, LT",lastDay:"[\u0ca8\u0cbf\u0ca8\u0ccd\u0ca8\u0cc6] LT",lastWeek:"[\u0c95\u0cc6\u0cc2\u0ca8\u0cc6\u0caf] dddd, LT",sameElse:"L"},relativeTime:{future:"%s \u0ca8\u0c82\u0ca4\u0cb0",past:"%s \u0cb9\u0cbf\u0c82\u0ca6\u0cc6",s:"\u0c95\u0cc6\u0cb2\u0cb5\u0cc1 \u0c95\u0ccd\u0cb7\u0ca3\u0c97\u0cb3\u0cc1",ss:"%d \u0cb8\u0cc6\u0c95\u0cc6\u0c82\u0ca1\u0cc1\u0c97\u0cb3\u0cc1",m:"\u0c92\u0c82\u0ca6\u0cc1 \u0ca8\u0cbf\u0cae\u0cbf\u0cb7",mm:"%d \u0ca8\u0cbf\u0cae\u0cbf\u0cb7",h:"\u0c92\u0c82\u0ca6\u0cc1 \u0c97\u0c82\u0c9f\u0cc6",hh:"%d \u0c97\u0c82\u0c9f\u0cc6",d:"\u0c92\u0c82\u0ca6\u0cc1 \u0ca6\u0cbf\u0ca8",dd:"%d \u0ca6\u0cbf\u0ca8",M:"\u0c92\u0c82\u0ca6\u0cc1 \u0ca4\u0cbf\u0c82\u0c97\u0cb3\u0cc1",MM:"%d \u0ca4\u0cbf\u0c82\u0c97\u0cb3\u0cc1",y:"\u0c92\u0c82\u0ca6\u0cc1 \u0cb5\u0cb0\u0ccd\u0cb7",yy:"%d \u0cb5\u0cb0\u0ccd\u0cb7"},preparse:function(e){return e.replace(/[\u0ce7\u0ce8\u0ce9\u0cea\u0ceb\u0cec\u0ced\u0cee\u0cef\u0ce6]/g,function(e){return Rs[e]})},postformat:function(e){return e.replace(/\d/g,function(e){return Js[e]})},meridiemParse:/\u0cb0\u0cbe\u0ca4\u0ccd\u0cb0\u0cbf|\u0cac\u0cc6\u0cb3\u0cbf\u0c97\u0ccd\u0c97\u0cc6|\u0cae\u0ca7\u0ccd\u0caf\u0cbe\u0cb9\u0ccd\u0ca8|\u0cb8\u0c82\u0c9c\u0cc6/,meridiemHour:function(e,a){return 12===e&&(e=0),"\u0cb0\u0cbe\u0ca4\u0ccd\u0cb0\u0cbf"===a?e<4?e:e+12:"\u0cac\u0cc6\u0cb3\u0cbf\u0c97\u0ccd\u0c97\u0cc6"===a?e:"\u0cae\u0ca7\u0ccd\u0caf\u0cbe\u0cb9\u0ccd\u0ca8"===a?10<=e?e:e+12:"\u0cb8\u0c82\u0c9c\u0cc6"===a?e+12:void 0},meridiem:function(e,a,t){return e<4?"\u0cb0\u0cbe\u0ca4\u0ccd\u0cb0\u0cbf":e<10?"\u0cac\u0cc6\u0cb3\u0cbf\u0c97\u0ccd\u0c97\u0cc6":e<17?"\u0cae\u0ca7\u0ccd\u0caf\u0cbe\u0cb9\u0ccd\u0ca8":e<20?"\u0cb8\u0c82\u0c9c\u0cc6":"\u0cb0\u0cbe\u0ca4\u0ccd\u0cb0\u0cbf"},dayOfMonthOrdinalParse:/\d{1,2}(\u0ca8\u0cc6\u0cd5)/,ordinal:function(e){return e+"\u0ca8\u0cc6\u0cd5"},week:{dow:0,doy:6}}),c.defineLocale("ko",{months:"1\uc6d4_2\uc6d4_3\uc6d4_4\uc6d4_5\uc6d4_6\uc6d4_7\uc6d4_8\uc6d4_9\uc6d4_10\uc6d4_11\uc6d4_12\uc6d4".split("_"),monthsShort:"1\uc6d4_2\uc6d4_3\uc6d4_4\uc6d4_5\uc6d4_6\uc6d4_7\uc6d4_8\uc6d4_9\uc6d4_10\uc6d4_11\uc6d4_12\uc6d4".split("_"),weekdays:"\uc77c\uc694\uc77c_\uc6d4\uc694\uc77c_\ud654\uc694\uc77c_\uc218\uc694\uc77c_\ubaa9\uc694\uc77c_\uae08\uc694\uc77c_\ud1a0\uc694\uc77c".split("_"),weekdaysShort:"\uc77c_\uc6d4_\ud654_\uc218_\ubaa9_\uae08_\ud1a0".split("_"),weekdaysMin:"\uc77c_\uc6d4_\ud654_\uc218_\ubaa9_\uae08_\ud1a0".split("_"),longDateFormat:{LT:"A h:mm",LTS:"A h:mm:ss",L:"YYYY.MM.DD.",LL:"YYYY\ub144 MMMM D\uc77c",LLL:"YYYY\ub144 MMMM D\uc77c A h:mm",LLLL:"YYYY\ub144 MMMM D\uc77c dddd A h:mm",l:"YYYY.MM.DD.",ll:"YYYY\ub144 MMMM D\uc77c",lll:"YYYY\ub144 MMMM D\uc77c A h:mm",llll:"YYYY\ub144 MMMM D\uc77c dddd A h:mm"},calendar:{sameDay:"\uc624\ub298 LT",nextDay:"\ub0b4\uc77c LT",nextWeek:"dddd LT",lastDay:"\uc5b4\uc81c LT",lastWeek:"\uc9c0\ub09c\uc8fc dddd LT",sameElse:"L"},relativeTime:{future:"%s \ud6c4",past:"%s \uc804",s:"\uba87 \ucd08",ss:"%d\ucd08",m:"1\ubd84",mm:"%d\ubd84",h:"\ud55c \uc2dc\uac04",hh:"%d\uc2dc\uac04",d:"\ud558\ub8e8",dd:"%d\uc77c",M:"\ud55c \ub2ec",MM:"%d\ub2ec",y:"\uc77c \ub144",yy:"%d\ub144"},dayOfMonthOrdinalParse:/\d{1,2}(\uc77c|\uc6d4|\uc8fc)/,ordinal:function(e,a){switch(a){case"d":case"D":case"DDD":return e+"\uc77c";case"M":return e+"\uc6d4";case"w":case"W":return e+"\uc8fc";default:return e}},meridiemParse:/\uc624\uc804|\uc624\ud6c4/,isPM:function(e){return"\uc624\ud6c4"===e},meridiem:function(e,a,t){return e<12?"\uc624\uc804":"\uc624\ud6c4"}}),c.defineLocale("ku-kmr",{months:"R\xeabendan_Sibat_Adar_N\xeesan_Gulan_Hez\xeeran_T\xeermeh_Tebax_\xcelon_Cotmeh_Mijdar_Berfanbar".split("_"),monthsShort:"R\xeab_Sib_Ada_N\xees_Gul_Hez_T\xeer_Teb_\xcelo_Cot_Mij_Ber".split("_"),monthsParseExact:!0,weekdays:"Yek\u015fem_Du\u015fem_S\xea\u015fem_\xc7ar\u015fem_P\xeanc\u015fem_\xcen_\u015eem\xee".split("_"),weekdaysShort:"Yek_Du_S\xea_\xc7ar_P\xean_\xcen_\u015eem".split("_"),weekdaysMin:"Ye_Du_S\xea_\xc7a_P\xea_\xcen_\u015ee".split("_"),meridiem:function(e,a,t){return e<12?t?"bn":"BN":t?"pn":"PN"},meridiemParse:/bn|BN|pn|PN/,longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD.MM.YYYY",LL:"Do MMMM[a] YYYY[an]",LLL:"Do MMMM[a] YYYY[an] HH:mm",LLLL:"dddd, Do MMMM[a] YYYY[an] HH:mm",ll:"Do MMM[.] YYYY[an]",lll:"Do MMM[.] YYYY[an] HH:mm",llll:"ddd[.], Do MMM[.] YYYY[an] HH:mm"},calendar:{sameDay:"[\xcero di saet] LT [de]",nextDay:"[Sib\xea di saet] LT [de]",nextWeek:"dddd [di saet] LT [de]",lastDay:"[Duh di saet] LT [de]",lastWeek:"dddd[a bor\xee di saet] LT [de]",sameElse:"L"},relativeTime:{future:"di %s de",past:"ber\xee %s",s:O,ss:O,m:O,mm:O,h:O,hh:O,d:O,dd:O,w:O,ww:O,M:O,MM:O,y:O,yy:O},dayOfMonthOrdinalParse:/\d{1,2}(?:y\xea|\xea|\.)/,ordinal:function(e,a){var a=a.toLowerCase();return a.includes("w")||a.includes("m")?e+".":e+(e=(a=""+(a=e)).substring(a.length-1),12==(a=1<a.length?a.substring(a.length-2):"")||13==a||"2"!=e&&"3"!=e&&"50"!=a&&"70"!=e&&"80"!=e?"\xea":"y\xea")},week:{dow:1,doy:4}});var Cs={1:"\u0661",2:"\u0662",3:"\u0663",4:"\u0664",5:"\u0665",6:"\u0666",7:"\u0667",8:"\u0668",9:"\u0669",0:"\u0660"},Is={"\u0661":"1","\u0662":"2","\u0663":"3","\u0664":"4","\u0665":"5","\u0666":"6","\u0667":"7","\u0668":"8","\u0669":"9","\u0660":"0"},fe=["\u06a9\u0627\u0646\u0648\u0646\u06cc 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Qs={ss:"sekundes_sekund\u0113m_sekunde_sekundes".split("_"),m:"min\u016btes_min\u016bt\u0113m_min\u016bte_min\u016btes".split("_"),mm:"min\u016btes_min\u016bt\u0113m_min\u016bte_min\u016btes".split("_"),h:"stundas_stund\u0101m_stunda_stundas".split("_"),hh:"stundas_stund\u0101m_stunda_stundas".split("_"),d:"dienas_dien\u0101m_diena_dienas".split("_"),dd:"dienas_dien\u0101m_diena_dienas".split("_"),M:"m\u0113ne\u0161a_m\u0113ne\u0161iem_m\u0113nesis_m\u0113ne\u0161i".split("_"),MM:"m\u0113ne\u0161a_m\u0113ne\u0161iem_m\u0113nesis_m\u0113ne\u0161i".split("_"),y:"gada_gadiem_gads_gadi".split("_"),yy:"gada_gadiem_gads_gadi".split("_")};function Xs(e,a,t){return t?a%10==1&&a%100!=11?e[2]:e[3]:a%10==1&&a%100!=11?e[0]:e[1]}function en(e,a,t){return e+" "+Xs(Qs[t],e,a)}function an(e,a,t){return 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MMMM YYYY",LLL:"D. MMMM YYYY H:mm",LLLL:"dddd, D. MMMM YYYY H:mm"},calendar:{sameDay:"[danas u] LT",nextDay:"[sjutra u] LT",nextWeek:function(){switch(this.day()){case 0:return"[u] [nedjelju] [u] LT";case 3:return"[u] [srijedu] [u] LT";case 6:return"[u] [subotu] [u] LT";case 1:case 2:case 4:case 5:return"[u] dddd [u] LT"}},lastDay:"[ju\u010de u] LT",lastWeek:function(){return["[pro\u0161le] [nedjelje] [u] LT","[pro\u0161log] [ponedjeljka] [u] LT","[pro\u0161log] [utorka] [u] LT","[pro\u0161le] [srijede] [u] LT","[pro\u0161log] [\u010detvrtka] [u] LT","[pro\u0161log] [petka] [u] LT","[pro\u0161le] [subote] [u] LT"][this.day()]},sameElse:"L"},relativeTime:{future:"za %s",past:"prije %s",s:"nekoliko sekundi",ss:tn.translate,m:tn.translate,mm:tn.translate,h:tn.translate,hh:tn.translate,d:"dan",dd:tn.translate,M:"mjesec",MM:tn.translate,y:"godinu",yy:tn.translate},dayOfMonthOrdinalParse:/\d{1,2}\./,ordinal:"%d.",week:{dow:1,doy:7}}),c.defineLocale("mi",{months:"Kohi-t\u0101te_Hui-tanguru_Pout\u016b-te-rangi_Paenga-wh\u0101wh\u0101_Haratua_Pipiri_H\u014dngoingoi_Here-turi-k\u014dk\u0101_Mahuru_Whiringa-\u0101-nuku_Whiringa-\u0101-rangi_Hakihea".split("_"),monthsShort:"Kohi_Hui_Pou_Pae_Hara_Pipi_H\u014dngoi_Here_Mahu_Whi-nu_Whi-ra_Haki".split("_"),monthsRegex:/(?:['a-z\u0101\u014D\u016B]+\-?){1,3}/i,monthsStrictRegex:/(?:['a-z\u0101\u014D\u016B]+\-?){1,3}/i,monthsShortRegex:/(?:['a-z\u0101\u014D\u016B]+\-?){1,3}/i,monthsShortStrictRegex:/(?:['a-z\u0101\u014D\u016B]+\-?){1,2}/i,weekdays:"R\u0101tapu_Mane_T\u016brei_Wenerei_T\u0101ite_Paraire_H\u0101tarei".split("_"),weekdaysShort:"Ta_Ma_T\u016b_We_T\u0101i_Pa_H\u0101".split("_"),weekdaysMin:"Ta_Ma_T\u016b_We_T\u0101i_Pa_H\u0101".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D 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tau"},dayOfMonthOrdinalParse:/\d{1,2}\xba/,ordinal:"%d\xba",week:{dow:1,doy:4}}),c.defineLocale("mk",{months:"\u0458\u0430\u043d\u0443\u0430\u0440\u0438_\u0444\u0435\u0432\u0440\u0443\u0430\u0440\u0438_\u043c\u0430\u0440\u0442_\u0430\u043f\u0440\u0438\u043b_\u043c\u0430\u0458_\u0458\u0443\u043d\u0438_\u0458\u0443\u043b\u0438_\u0430\u0432\u0433\u0443\u0441\u0442_\u0441\u0435\u043f\u0442\u0435\u043c\u0432\u0440\u0438_\u043e\u043a\u0442\u043e\u043c\u0432\u0440\u0438_\u043d\u043e\u0435\u043c\u0432\u0440\u0438_\u0434\u0435\u043a\u0435\u043c\u0432\u0440\u0438".split("_"),monthsShort:"\u0458\u0430\u043d_\u0444\u0435\u0432_\u043c\u0430\u0440_\u0430\u043f\u0440_\u043c\u0430\u0458_\u0458\u0443\u043d_\u0458\u0443\u043b_\u0430\u0432\u0433_\u0441\u0435\u043f_\u043e\u043a\u0442_\u043d\u043e\u0435_\u0434\u0435\u043a".split("_"),weekdays:"\u043d\u0435\u0434\u0435\u043b\u0430_\u043f\u043e\u043d\u0435\u0434\u0435\u043b\u043d\u0438\u043a_\u0432\u0442\u043e\u0440\u043d\u0438\u043a_\u0441\u0440\u0435\u0434\u0430_\u0447\u0435\u0442\u0432\u0440\u0442\u043e\u043a_\u043f\u0435\u0442\u043e\u043a_\u0441\u0430\u0431\u043e\u0442\u0430".split("_"),weekdaysShort:"\u043d\u0435\u0434_\u043f\u043e\u043d_\u0432\u0442\u043e_\u0441\u0440\u0435_\u0447\u0435\u0442_\u043f\u0435\u0442_\u0441\u0430\u0431".split("_"),weekdaysMin:"\u043de_\u043fo_\u0432\u0442_\u0441\u0440_\u0447\u0435_\u043f\u0435_\u0441a".split("_"),longDateFormat:{LT:"H:mm",LTS:"H:mm:ss",L:"D.MM.YYYY",LL:"D 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0===e?e+"-\u0435\u0432":0==t?e+"-\u0435\u043d":10<t&&t<20?e+"-\u0442\u0438":1==a?e+"-\u0432\u0438":2==a?e+"-\u0440\u0438":7==a||8==a?e+"-\u043c\u0438":e+"-\u0442\u0438"},week:{dow:1,doy:7}}),c.defineLocale("ml",{months:"\u0d1c\u0d28\u0d41\u0d35\u0d30\u0d3f_\u0d2b\u0d46\u0d2c\u0d4d\u0d30\u0d41\u0d35\u0d30\u0d3f_\u0d2e\u0d3e\u0d7c\u0d1a\u0d4d\u0d1a\u0d4d_\u0d0f\u0d2a\u0d4d\u0d30\u0d3f\u0d7d_\u0d2e\u0d47\u0d2f\u0d4d_\u0d1c\u0d42\u0d7a_\u0d1c\u0d42\u0d32\u0d48_\u0d13\u0d17\u0d38\u0d4d\u0d31\u0d4d\u0d31\u0d4d_\u0d38\u0d46\u0d2a\u0d4d\u0d31\u0d4d\u0d31\u0d02\u0d2c\u0d7c_\u0d12\u0d15\u0d4d\u0d1f\u0d4b\u0d2c\u0d7c_\u0d28\u0d35\u0d02\u0d2c\u0d7c_\u0d21\u0d3f\u0d38\u0d02\u0d2c\u0d7c".split("_"),monthsShort:"\u0d1c\u0d28\u0d41._\u0d2b\u0d46\u0d2c\u0d4d\u0d30\u0d41._\u0d2e\u0d3e\u0d7c._\u0d0f\u0d2a\u0d4d\u0d30\u0d3f._\u0d2e\u0d47\u0d2f\u0d4d_\u0d1c\u0d42\u0d7a_\u0d1c\u0d42\u0d32\u0d48._\u0d13\u0d17._\u0d38\u0d46\u0d2a\u0d4d\u0d31\u0d4d\u0d31._\u0d12\u0d15\u0d4d\u0d1f\u0d4b._\u0d28\u0d35\u0d02._\u0d21\u0d3f\u0d38\u0d02.".split("_"),monthsParseExact:!0,weekdays:"\u0d1e\u0d3e\u0d2f\u0d31\u0d3e\u0d34\u0d4d\u0d1a_\u0d24\u0d3f\u0d19\u0d4d\u0d15\u0d33\u0d3e\u0d34\u0d4d\u0d1a_\u0d1a\u0d4a\u0d35\u0d4d\u0d35\u0d3e\u0d34\u0d4d\u0d1a_\u0d2c\u0d41\u0d27\u0d28\u0d3e\u0d34\u0d4d\u0d1a_\u0d35\u0d4d\u0d2f\u0d3e\u0d34\u0d3e\u0d34\u0d4d\u0d1a_\u0d35\u0d46\u0d33\u0d4d\u0d33\u0d3f\u0d2f\u0d3e\u0d34\u0d4d\u0d1a_\u0d36\u0d28\u0d3f\u0d2f\u0d3e\u0d34\u0d4d\u0d1a".split("_"),weekdaysShort:"\u0d1e\u0d3e\u0d2f\u0d7c_\u0d24\u0d3f\u0d19\u0d4d\u0d15\u0d7e_\u0d1a\u0d4a\u0d35\u0d4d\u0d35_\u0d2c\u0d41\u0d27\u0d7b_\u0d35\u0d4d\u0d2f\u0d3e\u0d34\u0d02_\u0d35\u0d46\u0d33\u0d4d\u0d33\u0d3f_\u0d36\u0d28\u0d3f".split("_"),weekdaysMin:"\u0d1e\u0d3e_\u0d24\u0d3f_\u0d1a\u0d4a_\u0d2c\u0d41_\u0d35\u0d4d\u0d2f\u0d3e_\u0d35\u0d46_\u0d36".split("_"),longDateFormat:{LT:"A h:mm -\u0d28\u0d41",LTS:"A h:mm:ss -\u0d28\u0d41",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY, A h:mm -\u0d28\u0d41",LLLL:"dddd, D MMMM YYYY, A h:mm -\u0d28\u0d41"},calendar:{sameDay:"[\u0d07\u0d28\u0d4d\u0d28\u0d4d] LT",nextDay:"[\u0d28\u0d3e\u0d33\u0d46] LT",nextWeek:"dddd, LT",lastDay:"[\u0d07\u0d28\u0d4d\u0d28\u0d32\u0d46] LT",lastWeek:"[\u0d15\u0d34\u0d3f\u0d1e\u0d4d\u0d1e] dddd, LT",sameElse:"L"},relativeTime:{future:"%s \u0d15\u0d34\u0d3f\u0d1e\u0d4d\u0d1e\u0d4d",past:"%s \u0d2e\u0d41\u0d7b\u0d2a\u0d4d",s:"\u0d05\u0d7d\u0d2a \u0d28\u0d3f\u0d2e\u0d3f\u0d37\u0d19\u0d4d\u0d19\u0d7e",ss:"%d \u0d38\u0d46\u0d15\u0d4d\u0d15\u0d7b\u0d21\u0d4d",m:"\u0d12\u0d30\u0d41 \u0d2e\u0d3f\u0d28\u0d3f\u0d31\u0d4d\u0d31\u0d4d",mm:"%d \u0d2e\u0d3f\u0d28\u0d3f\u0d31\u0d4d\u0d31\u0d4d",h:"\u0d12\u0d30\u0d41 \u0d2e\u0d23\u0d3f\u0d15\u0d4d\u0d15\u0d42\u0d7c",hh:"%d \u0d2e\u0d23\u0d3f\u0d15\u0d4d\u0d15\u0d42\u0d7c",d:"\u0d12\u0d30\u0d41 \u0d26\u0d3f\u0d35\u0d38\u0d02",dd:"%d \u0d26\u0d3f\u0d35\u0d38\u0d02",M:"\u0d12\u0d30\u0d41 \u0d2e\u0d3e\u0d38\u0d02",MM:"%d \u0d2e\u0d3e\u0d38\u0d02",y:"\u0d12\u0d30\u0d41 \u0d35\u0d7c\u0d37\u0d02",yy:"%d \u0d35\u0d7c\u0d37\u0d02"},meridiemParse:/\u0d30\u0d3e\u0d24\u0d4d\u0d30\u0d3f|\u0d30\u0d3e\u0d35\u0d3f\u0d32\u0d46|\u0d09\u0d1a\u0d4d\u0d1a \u0d15\u0d34\u0d3f\u0d1e\u0d4d\u0d1e\u0d4d|\u0d35\u0d48\u0d15\u0d41\u0d28\u0d4d\u0d28\u0d47\u0d30\u0d02|\u0d30\u0d3e\u0d24\u0d4d\u0d30\u0d3f/i,meridiemHour:function(e,a){return 12===e&&(e=0),"\u0d30\u0d3e\u0d24\u0d4d\u0d30\u0d3f"===a&&4<=e||"\u0d09\u0d1a\u0d4d\u0d1a \u0d15\u0d34\u0d3f\u0d1e\u0d4d\u0d1e\u0d4d"===a||"\u0d35\u0d48\u0d15\u0d41\u0d28\u0d4d\u0d28\u0d47\u0d30\u0d02"===a?e+12:e},meridiem:function(e,a,t){return e<4?"\u0d30\u0d3e\u0d24\u0d4d\u0d30\u0d3f":e<12?"\u0d30\u0d3e\u0d35\u0d3f\u0d32\u0d46":e<17?"\u0d09\u0d1a\u0d4d\u0d1a \u0d15\u0d34\u0d3f\u0d1e\u0d4d\u0d1e\u0d4d":e<20?"\u0d35\u0d48\u0d15\u0d41\u0d28\u0d4d\u0d28\u0d47\u0d30\u0d02":"\u0d30\u0d3e\u0d24\u0d4d\u0d30\u0d3f"}}),c.defineLocale("mn",{months:"\u041d\u044d\u0433\u0434\u04af\u0433\u044d\u044d\u0440 \u0441\u0430\u0440_\u0425\u043e\u0451\u0440\u0434\u0443\u0433\u0430\u0430\u0440 \u0441\u0430\u0440_\u0413\u0443\u0440\u0430\u0432\u0434\u0443\u0433\u0430\u0430\u0440 \u0441\u0430\u0440_\u0414\u04e9\u0440\u04e9\u0432\u0434\u04af\u0433\u044d\u044d\u0440 \u0441\u0430\u0440_\u0422\u0430\u0432\u0434\u0443\u0433\u0430\u0430\u0440 \u0441\u0430\u0440_\u0417\u0443\u0440\u0433\u0430\u0434\u0443\u0433\u0430\u0430\u0440 \u0441\u0430\u0440_\u0414\u043e\u043b\u0434\u0443\u0433\u0430\u0430\u0440 \u0441\u0430\u0440_\u041d\u0430\u0439\u043c\u0434\u0443\u0433\u0430\u0430\u0440 \u0441\u0430\u0440_\u0415\u0441\u0434\u04af\u0433\u044d\u044d\u0440 \u0441\u0430\u0440_\u0410\u0440\u0430\u0432\u0434\u0443\u0433\u0430\u0430\u0440 \u0441\u0430\u0440_\u0410\u0440\u0432\u0430\u043d \u043d\u044d\u0433\u0434\u04af\u0433\u044d\u044d\u0440 \u0441\u0430\u0440_\u0410\u0440\u0432\u0430\u043d \u0445\u043e\u0451\u0440\u0434\u0443\u0433\u0430\u0430\u0440 \u0441\u0430\u0440".split("_"),monthsShort:"1 \u0441\u0430\u0440_2 \u0441\u0430\u0440_3 \u0441\u0430\u0440_4 \u0441\u0430\u0440_5 \u0441\u0430\u0440_6 \u0441\u0430\u0440_7 \u0441\u0430\u0440_8 \u0441\u0430\u0440_9 \u0441\u0430\u0440_10 \u0441\u0430\u0440_11 \u0441\u0430\u0440_12 \u0441\u0430\u0440".split("_"),monthsParseExact:!0,weekdays:"\u041d\u044f\u043c_\u0414\u0430\u0432\u0430\u0430_\u041c\u044f\u0433\u043c\u0430\u0440_\u041b\u0445\u0430\u0433\u0432\u0430_\u041f\u04af\u0440\u044d\u0432_\u0411\u0430\u0430\u0441\u0430\u043d_\u0411\u044f\u043c\u0431\u0430".split("_"),weekdaysShort:"\u041d\u044f\u043c_\u0414\u0430\u0432_\u041c\u044f\u0433_\u041b\u0445\u0430_\u041f\u04af\u0440_\u0411\u0430\u0430_\u0411\u044f\u043c".split("_"),weekdaysMin:"\u041d\u044f_\u0414\u0430_\u041c\u044f_\u041b\u0445_\u041f\u04af_\u0411\u0430_\u0411\u044f".split("_"),weekdaysParseExact:!0,longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"YYYY-MM-DD",LL:"YYYY \u043e\u043d\u044b MMMM\u044b\u043d D",LLL:"YYYY \u043e\u043d\u044b MMMM\u044b\u043d D HH:mm",LLLL:"dddd, YYYY \u043e\u043d\u044b MMMM\u044b\u043d D HH:mm"},meridiemParse:/\u04ae\u04e8|\u04ae\u0425/i,isPM:function(e){return"\u04ae\u0425"===e},meridiem:function(e,a,t){return e<12?"\u04ae\u04e8":"\u04ae\u0425"},calendar:{sameDay:"[\u04e8\u043d\u04e9\u04e9\u0434\u04e9\u0440] LT",nextDay:"[\u041c\u0430\u0440\u0433\u0430\u0430\u0448] LT",nextWeek:"[\u0418\u0440\u044d\u0445] dddd LT",lastDay:"[\u04e8\u0447\u0438\u0433\u0434\u04e9\u0440] LT",lastWeek:"[\u04e8\u043d\u0433\u04e9\u0440\u0441\u04e9\u043d] dddd LT",sameElse:"L"},relativeTime:{future:"%s \u0434\u0430\u0440\u0430\u0430",past:"%s \u04e9\u043c\u043d\u04e9",s:sn,ss:sn,m:sn,mm:sn,h:sn,hh:sn,d:sn,dd:sn,M:sn,MM:sn,y:sn,yy:sn},dayOfMonthOrdinalParse:/\d{1,2} \u04e9\u0434\u04e9\u0440/,ordinal:function(e,a){switch(a){case"d":case"D":case"DDD":return e+" \u04e9\u0434\u04e9\u0440";default:return e}}});var nn={1:"\u0967",2:"\u0968",3:"\u0969",4:"\u096a",5:"\u096b",6:"\u096c",7:"\u096d",8:"\u096e",9:"\u096f",0:"\u0966"},rn={"\u0967":"1","\u0968":"2","\u0969":"3","\u096a":"4","\u096b":"5","\u096c":"6","\u096d":"7","\u096e":"8","\u096f":"9","\u0966":"0"};function dn(e,a,t,s){var n="";if(a)switch(t){case"s":n="\u0915\u093e\u0939\u0940 \u0938\u0947\u0915\u0902\u0926";break;case"ss":n="%d \u0938\u0947\u0915\u0902\u0926";break;case"m":n="\u090f\u0915 \u092e\u093f\u0928\u093f\u091f";break;case"mm":n="%d \u092e\u093f\u0928\u093f\u091f\u0947";break;case"h":n="\u090f\u0915 \u0924\u093e\u0938";break;case"hh":n="%d \u0924\u093e\u0938";break;case"d":n="\u090f\u0915 \u0926\u093f\u0935\u0938";break;case"dd":n="%d \u0926\u093f\u0935\u0938";break;case"M":n="\u090f\u0915 \u092e\u0939\u093f\u0928\u093e";break;case"MM":n="%d \u092e\u0939\u093f\u0928\u0947";break;case"y":n="\u090f\u0915 \u0935\u0930\u094d\u0937";break;case"yy":n="%d \u0935\u0930\u094d\u0937\u0947";break}else switch(t){case"s":n="\u0915\u093e\u0939\u0940 \u0938\u0947\u0915\u0902\u0926\u093e\u0902";break;case"ss":n="%d \u0938\u0947\u0915\u0902\u0926\u093e\u0902";break;case"m":n="\u090f\u0915\u093e \u092e\u093f\u0928\u093f\u091f\u093e";break;case"mm":n="%d \u092e\u093f\u0928\u093f\u091f\u093e\u0902";break;case"h":n="\u090f\u0915\u093e \u0924\u093e\u0938\u093e";break;case"hh":n="%d \u0924\u093e\u0938\u093e\u0902";break;case"d":n="\u090f\u0915\u093e \u0926\u093f\u0935\u0938\u093e";break;case"dd":n="%d \u0926\u093f\u0935\u0938\u093e\u0902";break;case"M":n="\u090f\u0915\u093e \u092e\u0939\u093f\u0928\u094d\u092f\u093e";break;case"MM":n="%d \u092e\u0939\u093f\u0928\u094d\u092f\u093e\u0902";break;case"y":n="\u090f\u0915\u093e \u0935\u0930\u094d\u0937\u093e";break;case"yy":n="%d \u0935\u0930\u094d\u0937\u093e\u0902";break}return n.replace(/%d/i,e)}c.defineLocale("mr",{months:"\u091c\u093e\u0928\u0947\u0935\u093e\u0930\u0940_\u092b\u0947\u092c\u094d\u0930\u0941\u0935\u093e\u0930\u0940_\u092e\u093e\u0930\u094d\u091a_\u090f\u092a\u094d\u0930\u093f\u0932_\u092e\u0947_\u091c\u0942\u0928_\u091c\u0941\u0932\u0948_\u0911\u0917\u0938\u094d\u091f_\u0938\u092a\u094d\u091f\u0947\u0902\u092c\u0930_\u0911\u0915\u094d\u091f\u094b\u092c\u0930_\u0928\u094b\u0935\u094d\u0939\u0947\u0902\u092c\u0930_\u0921\u093f\u0938\u0947\u0902\u092c\u0930".split("_"),monthsShort:"\u091c\u093e\u0928\u0947._\u092b\u0947\u092c\u094d\u0930\u0941._\u092e\u093e\u0930\u094d\u091a._\u090f\u092a\u094d\u0930\u093f._\u092e\u0947._\u091c\u0942\u0928._\u091c\u0941\u0932\u0948._\u0911\u0917._\u0938\u092a\u094d\u091f\u0947\u0902._\u0911\u0915\u094d\u091f\u094b._\u0928\u094b\u0935\u094d\u0939\u0947\u0902._\u0921\u093f\u0938\u0947\u0902.".split("_"),monthsParseExact:!0,weekdays:"\u0930\u0935\u093f\u0935\u093e\u0930_\u0938\u094b\u092e\u0935\u093e\u0930_\u092e\u0902\u0917\u0933\u0935\u093e\u0930_\u092c\u0941\u0927\u0935\u093e\u0930_\u0917\u0941\u0930\u0942\u0935\u093e\u0930_\u0936\u0941\u0915\u094d\u0930\u0935\u093e\u0930_\u0936\u0928\u093f\u0935\u093e\u0930".split("_"),weekdaysShort:"\u0930\u0935\u093f_\u0938\u094b\u092e_\u092e\u0902\u0917\u0933_\u092c\u0941\u0927_\u0917\u0941\u0930\u0942_\u0936\u0941\u0915\u094d\u0930_\u0936\u0928\u093f".split("_"),weekdaysMin:"\u0930_\u0938\u094b_\u092e\u0902_\u092c\u0941_\u0917\u0941_\u0936\u0941_\u0936".split("_"),longDateFormat:{LT:"A h:mm \u0935\u093e\u091c\u0924\u093e",LTS:"A h:mm:ss \u0935\u093e\u091c\u0924\u093e",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY, A h:mm \u0935\u093e\u091c\u0924\u093e",LLLL:"dddd, D MMMM YYYY, A h:mm \u0935\u093e\u091c\u0924\u093e"},calendar:{sameDay:"[\u0906\u091c] LT",nextDay:"[\u0909\u0926\u094d\u092f\u093e] LT",nextWeek:"dddd, LT",lastDay:"[\u0915\u093e\u0932] LT",lastWeek:"[\u092e\u093e\u0917\u0940\u0932] dddd, LT",sameElse:"L"},relativeTime:{future:"%s\u092e\u0927\u094d\u092f\u0947",past:"%s\u092a\u0942\u0930\u094d\u0935\u0940",s:dn,ss:dn,m:dn,mm:dn,h:dn,hh:dn,d:dn,dd:dn,M:dn,MM:dn,y:dn,yy:dn},preparse:function(e){return e.replace(/[\u0967\u0968\u0969\u096a\u096b\u096c\u096d\u096e\u096f\u0966]/g,function(e){return rn[e]})},postformat:function(e){return e.replace(/\d/g,function(e){return nn[e]})},meridiemParse:/\u092a\u0939\u093e\u091f\u0947|\u0938\u0915\u093e\u0933\u0940|\u0926\u0941\u092a\u093e\u0930\u0940|\u0938\u093e\u092f\u0902\u0915\u093e\u0933\u0940|\u0930\u093e\u0924\u094d\u0930\u0940/,meridiemHour:function(e,a){return 12===e&&(e=0),"\u092a\u0939\u093e\u091f\u0947"===a||"\u0938\u0915\u093e\u0933\u0940"===a?e:"\u0926\u0941\u092a\u093e\u0930\u0940"===a||"\u0938\u093e\u092f\u0902\u0915\u093e\u0933\u0940"===a||"\u0930\u093e\u0924\u094d\u0930\u0940"===a?12<=e?e:e+12:void 0},meridiem:function(e,a,t){return 0<=e&&e<6?"\u092a\u0939\u093e\u091f\u0947":e<12?"\u0938\u0915\u093e\u0933\u0940":e<17?"\u0926\u0941\u092a\u093e\u0930\u0940":e<20?"\u0938\u093e\u092f\u0902\u0915\u093e\u0933\u0940":"\u0930\u093e\u0924\u094d\u0930\u0940"},week:{dow:0,doy:6}}),c.defineLocale("ms-my",{months:"Januari_Februari_Mac_April_Mei_Jun_Julai_Ogos_September_Oktober_November_Disember".split("_"),monthsShort:"Jan_Feb_Mac_Apr_Mei_Jun_Jul_Ogs_Sep_Okt_Nov_Dis".split("_"),weekdays:"Ahad_Isnin_Selasa_Rabu_Khamis_Jumaat_Sabtu".split("_"),weekdaysShort:"Ahd_Isn_Sel_Rab_Kha_Jum_Sab".split("_"),weekdaysMin:"Ah_Is_Sl_Rb_Km_Jm_Sb".split("_"),longDateFormat:{LT:"HH.mm",LTS:"HH.mm.ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY [pukul] HH.mm",LLLL:"dddd, D MMMM YYYY [pukul] HH.mm"},meridiemParse:/pagi|tengahari|petang|malam/,meridiemHour:function(e,a){return 12===e&&(e=0),"pagi"===a?e:"tengahari"===a?11<=e?e:e+12:"petang"===a||"malam"===a?e+12:void 0},meridiem:function(e,a,t){return 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MMMM YYYY",LLL:"D. MMMM YYYY [kl.] HH:mm",LLLL:"dddd D. MMMM YYYY [kl.] HH:mm"},calendar:{sameDay:"[i dag kl.] LT",nextDay:"[i morgen kl.] LT",nextWeek:"dddd [kl.] LT",lastDay:"[i g\xe5r kl.] LT",lastWeek:"[forrige] dddd [kl.] LT",sameElse:"L"},relativeTime:{future:"om %s",past:"%s siden",s:"noen sekunder",ss:"%d sekunder",m:"ett minutt",mm:"%d minutter",h:"\xe9n time",hh:"%d timer",d:"\xe9n dag",dd:"%d dager",w:"\xe9n uke",ww:"%d uker",M:"\xe9n m\xe5ned",MM:"%d m\xe5neder",y:"ett \xe5r",yy:"%d 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h:mm \u092c\u091c\u0947",LTS:"A\u0915\u094b h:mm:ss \u092c\u091c\u0947",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY, A\u0915\u094b h:mm \u092c\u091c\u0947",LLLL:"dddd, D MMMM YYYY, A\u0915\u094b h:mm \u092c\u091c\u0947"},preparse:function(e){return e.replace(/[\u0967\u0968\u0969\u096a\u096b\u096c\u096d\u096e\u096f\u0966]/g,function(e){return un[e]})},postformat:function(e){return e.replace(/\d/g,function(e){return mn[e]})},meridiemParse:/\u0930\u093e\u0924\u093f|\u092c\u093f\u0939\u093e\u0928|\u0926\u093f\u0909\u0901\u0938\u094b|\u0938\u093e\u0901\u091d/,meridiemHour:function(e,a){return 12===e&&(e=0),"\u0930\u093e\u0924\u093f"===a?e<4?e:e+12:"\u092c\u093f\u0939\u093e\u0928"===a?e:"\u0926\u093f\u0909\u0901\u0938\u094b"===a?10<=e?e:e+12:"\u0938\u093e\u0901\u091d"===a?e+12:void 0},meridiem:function(e,a,t){return e<3?"\u0930\u093e\u0924\u093f":e<12?"\u092c\u093f\u0939\u093e\u0928":e<16?"\u0926\u093f\u0909\u0901\u0938\u094b":e<20?"\u0938\u093e\u0901\u091d":"\u0930\u093e\u0924\u093f"},calendar:{sameDay:"[\u0906\u091c] LT",nextDay:"[\u092d\u094b\u0932\u093f] LT",nextWeek:"[\u0906\u0909\u0901\u0926\u094b] dddd[,] LT",lastDay:"[\u0939\u093f\u091c\u094b] LT",lastWeek:"[\u0917\u090f\u0915\u094b] dddd[,] LT",sameElse:"L"},relativeTime:{future:"%s\u092e\u093e",past:"%s \u0905\u0917\u093e\u0921\u093f",s:"\u0915\u0947\u0939\u0940 \u0915\u094d\u0937\u0923",ss:"%d \u0938\u0947\u0915\u0947\u0923\u094d\u0921",m:"\u090f\u0915 \u092e\u093f\u0928\u0947\u091f",mm:"%d \u092e\u093f\u0928\u0947\u091f",h:"\u090f\u0915 \u0918\u0923\u094d\u091f\u093e",hh:"%d \u0918\u0923\u094d\u091f\u093e",d:"\u090f\u0915 \u0926\u093f\u0928",dd:"%d \u0926\u093f\u0928",M:"\u090f\u0915 \u092e\u0939\u093f\u0928\u093e",MM:"%d \u092e\u0939\u093f\u0928\u093e",y:"\u090f\u0915 \u092c\u0930\u094d\u0937",yy:"%d \u092c\u0930\u094d\u0937"},week:{dow:0,doy:6}}),"jan._feb._mrt._apr._mei_jun._jul._aug._sep._okt._nov._dec.".split("_")),Mn="jan_feb_mrt_apr_mei_jun_jul_aug_sep_okt_nov_dec".split("_"),_=[/^jan/i,/^feb/i,/^(maart|mrt\.?)$/i,/^apr/i,/^mei$/i,/^jun[i.]?$/i,/^jul[i.]?$/i,/^aug/i,/^sep/i,/^okt/i,/^nov/i,/^dec/i],Ie=/^(januari|februari|maart|april|mei|ju[nl]i|augustus|september|oktober|november|december|jan\.?|feb\.?|mrt\.?|apr\.?|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i,hn=(c.defineLocale("nl-be",{months:"januari_februari_maart_april_mei_juni_juli_augustus_september_oktober_november_december".split("_"),monthsShort:function(e,a){return e?(/-MMM-/.test(a)?Mn:ln)[e.month()]:ln},monthsRegex:Ie,monthsShortRegex:Ie,monthsStrictRegex:/^(januari|februari|maart|april|mei|ju[nl]i|augustus|september|oktober|november|december)/i,monthsShortStrictRegex:/^(jan\.?|feb\.?|mrt\.?|apr\.?|mei|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i,monthsParse:_,longMonthsParse:_,shortMonthsParse:_,weekdays:"zondag_maandag_dinsdag_woensdag_donderdag_vrijdag_zaterdag".split("_"),weekdaysShort:"zo._ma._di._wo._do._vr._za.".split("_"),weekdaysMin:"zo_ma_di_wo_do_vr_za".split("_"),weekdaysParseExact:!0,longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd D MMMM YYYY HH:mm"},calendar:{sameDay:"[vandaag om] LT",nextDay:"[morgen om] LT",nextWeek:"dddd [om] LT",lastDay:"[gisteren om] LT",lastWeek:"[afgelopen] dddd [om] LT",sameElse:"L"},relativeTime:{future:"over %s",past:"%s geleden",s:"een paar seconden",ss:"%d seconden",m:"\xe9\xe9n minuut",mm:"%d minuten",h:"\xe9\xe9n uur",hh:"%d 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sobot\u0119 o] LT";default:return"[W zesz\u0142y] dddd [o] LT"}},sameElse:"L"},relativeTime:{future:"za %s",past:"%s temu",s:"kilka sekund",ss:pn,m:pn,mm:pn,h:pn,hh:pn,d:"1 dzie\u0144",dd:"%d dni",w:"tydzie\u0144",ww:pn,M:"miesi\u0105c",MM:pn,y:"rok",yy:pn},dayOfMonthOrdinalParse:/\d{1,2}\./,ordinal:"%d.",week:{dow:1,doy:4}}),c.defineLocale("pt-br",{months:"janeiro_fevereiro_mar\xe7o_abril_maio_junho_julho_agosto_setembro_outubro_novembro_dezembro".split("_"),monthsShort:"jan_fev_mar_abr_mai_jun_jul_ago_set_out_nov_dez".split("_"),weekdays:"domingo_segunda-feira_ter\xe7a-feira_quarta-feira_quinta-feira_sexta-feira_s\xe1bado".split("_"),weekdaysShort:"dom_seg_ter_qua_qui_sex_s\xe1b".split("_"),weekdaysMin:"do_2\xaa_3\xaa_4\xaa_5\xaa_6\xaa_s\xe1".split("_"),weekdaysParseExact:!0,longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D [de] MMMM [de] YYYY",LLL:"D [de] MMMM [de] YYYY [\xe0s] HH:mm",LLLL:"dddd, D [de] MMMM [de] YYYY [\xe0s] HH:mm"},calendar:{sameDay:"[Hoje \xe0s] LT",nextDay:"[Amanh\xe3 \xe0s] LT",nextWeek:"dddd [\xe0s] LT",lastDay:"[Ontem \xe0s] LT",lastWeek:function(){return 0===this.day()||6===this.day()?"[\xdaltimo] dddd [\xe0s] LT":"[\xdaltima] dddd [\xe0s] LT"},sameElse:"L"},relativeTime:{future:"em %s",past:"h\xe1 %s",s:"poucos segundos",ss:"%d segundos",m:"um minuto",mm:"%d minutos",h:"uma hora",hh:"%d horas",d:"um dia",dd:"%d dias",M:"um m\xeas",MM:"%d meses",y:"um ano",yy:"%d anos"},dayOfMonthOrdinalParse:/\d{1,2}\xba/,ordinal:"%d\xba",invalidDate:"Data inv\xe1lida"}),c.defineLocale("pt",{months:"janeiro_fevereiro_mar\xe7o_abril_maio_junho_julho_agosto_setembro_outubro_novembro_dezembro".split("_"),monthsShort:"jan_fev_mar_abr_mai_jun_jul_ago_set_out_nov_dez".split("_"),weekdays:"Domingo_Segunda-feira_Ter\xe7a-feira_Quarta-feira_Quinta-feira_Sexta-feira_S\xe1bado".split("_"),weekdaysShort:"Dom_Seg_Ter_Qua_Qui_Sex_S\xe1b".split("_"),weekdaysMin:"Do_2\xaa_3\xaa_4\xaa_5\xaa_6\xaa_S\xe1".split("_"),weekdaysParseExact:!0,longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D [de] MMMM [de] YYYY",LLL:"D [de] MMMM [de] YYYY HH:mm",LLLL:"dddd, D [de] MMMM [de] YYYY HH:mm"},calendar:{sameDay:"[Hoje \xe0s] LT",nextDay:"[Amanh\xe3 \xe0s] LT",nextWeek:"dddd [\xe0s] LT",lastDay:"[Ontem \xe0s] LT",lastWeek:function(){return 0===this.day()||6===this.day()?"[\xdaltimo] dddd [\xe0s] LT":"[\xdaltima] dddd [\xe0s] LT"},sameElse:"L"},relativeTime:{future:"em %s",past:"h\xe1 %s",s:"segundos",ss:"%d segundos",m:"um minuto",mm:"%d minutos",h:"uma hora",hh:"%d horas",d:"um dia",dd:"%d dias",w:"uma semana",ww:"%d semanas",M:"um m\xeas",MM:"%d meses",y:"um ano",yy:"%d anos"},dayOfMonthOrdinalParse:/\d{1,2}\xba/,ordinal:"%d\xba",week:{dow:1,doy:4}}),c.defineLocale("ro",{months:"ianuarie_februarie_martie_aprilie_mai_iunie_iulie_august_septembrie_octombrie_noiembrie_decembrie".split("_"),monthsShort:"ian._feb._mart._apr._mai_iun._iul._aug._sept._oct._nov._dec.".split("_"),monthsParseExact:!0,weekdays:"duminic\u0103_luni_mar\u021bi_miercuri_joi_vineri_s\xe2mb\u0103t\u0103".split("_"),weekdaysShort:"Dum_Lun_Mar_Mie_Joi_Vin_S\xe2m".split("_"),weekdaysMin:"Du_Lu_Ma_Mi_Jo_Vi_S\xe2".split("_"),longDateFormat:{LT:"H:mm",LTS:"H:mm:ss",L:"DD.MM.YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY H:mm",LLLL:"dddd, D MMMM YYYY H:mm"},calendar:{sameDay:"[azi la] LT",nextDay:"[m\xe2ine la] LT",nextWeek:"dddd [la] LT",lastDay:"[ieri la] LT",lastWeek:"[fosta] dddd [la] LT",sameElse:"L"},relativeTime:{future:"peste %s",past:"%s \xeen urm\u0103",s:"c\xe2teva secunde",ss:Dn,m:"un minut",mm:Dn,h:"o or\u0103",hh:Dn,d:"o zi",dd:Dn,w:"o s\u0103pt\u0103m\xe2n\u0103",ww:Dn,M:"o lun\u0103",MM:Dn,y:"un an",yy:Dn},week:{dow:1,doy:7}});t=[/^\u044f\u043d\u0432/i,/^\u0444\u0435\u0432/i,/^\u043c\u0430\u0440/i,/^\u0430\u043f\u0440/i,/^\u043c\u0430[\u0439\u044f]/i,/^\u0438\u044e\u043d/i,/^\u0438\u044e\u043b/i,/^\u0430\u0432\u0433/i,/^\u0441\u0435\u043d/i,/^\u043e\u043a\u0442/i,/^\u043d\u043e\u044f/i,/^\u0434\u0435\u043a/i],c.defineLocale("ru",{months:{format:"\u044f\u043d\u0432\u0430\u0440\u044f_\u0444\u0435\u0432\u0440\u0430\u043b\u044f_\u043c\u0430\u0440\u0442\u0430_\u0430\u043f\u0440\u0435\u043b\u044f_\u043c\u0430\u044f_\u0438\u044e\u043d\u044f_\u0438\u044e\u043b\u044f_\u0430\u0432\u0433\u0443\u0441\u0442\u0430_\u0441\u0435\u043d\u0442\u044f\u0431\u0440\u044f_\u043e\u043a\u0442\u044f\u0431\u0440\u044f_\u043d\u043e\u044f\u0431\u0440\u044f_\u0434\u0435\u043a\u0430\u0431\u0440\u044f".split("_"),standalone:"\u044f\u043d\u0432\u0430\u0440\u044c_\u0444\u0435\u0432\u0440\u0430\u043b\u044c_\u043c\u0430\u0440\u0442_\u0430\u043f\u0440\u0435\u043b\u044c_\u043c\u0430\u0439_\u0438\u044e\u043d\u044c_\u0438\u044e\u043b\u044c_\u0430\u0432\u0433\u0443\u0441\u0442_\u0441\u0435\u043d\u0442\u044f\u0431\u0440\u044c_\u043e\u043a\u0442\u044f\u0431\u0440\u044c_\u043d\u043e\u044f\u0431\u0440\u044c_\u0434\u0435\u043a\u0430\u0431\u0440\u044c".split("_")},monthsShort:{format:"\u044f\u043d\u0432._\u0444\u0435\u0432\u0440._\u043c\u0430\u0440._\u0430\u043f\u0440._\u043c\u0430\u044f_\u0438\u044e\u043d\u044f_\u0438\u044e\u043b\u044f_\u0430\u0432\u0433._\u0441\u0435\u043d\u0442._\u043e\u043a\u0442._\u043d\u043e\u044f\u0431._\u0434\u0435\u043a.".split("_"),standalone:"\u044f\u043d\u0432._\u0444\u0435\u0432\u0440._\u043c\u0430\u0440\u0442_\u0430\u043f\u0440._\u043c\u0430\u0439_\u0438\u044e\u043d\u044c_\u0438\u044e\u043b\u044c_\u0430\u0432\u0433._\u0441\u0435\u043d\u0442._\u043e\u043a\u0442._\u043d\u043e\u044f\u0431._\u0434\u0435\u043a.".split("_")},weekdays:{standalone:"\u0432\u043e\u0441\u043a\u0440\u0435\u0441\u0435\u043d\u044c\u0435_\u043f\u043e\u043d\u0435\u0434\u0435\u043b\u044c\u043d\u0438\u043a_\u0432\u0442\u043e\u0440\u043d\u0438\u043a_\u0441\u0440\u0435\u0434\u0430_\u0447\u0435\u0442\u0432\u0435\u0440\u0433_\u043f\u044f\u0442\u043d\u0438\u0446\u0430_\u0441\u0443\u0431\u0431\u043e\u0442\u0430".split("_"),format:"\u0432\u043e\u0441\u043a\u0440\u0435\u0441\u0435\u043d\u044c\u0435_\u043f\u043e\u043d\u0435\u0434\u0435\u043b\u044c\u043d\u0438\u043a_\u0432\u0442\u043e\u0440\u043d\u0438\u043a_\u0441\u0440\u0435\u0434\u0443_\u0447\u0435\u0442\u0432\u0435\u0440\u0433_\u043f\u044f\u0442\u043d\u0438\u0446\u0443_\u0441\u0443\u0431\u0431\u043e\u0442\u0443".split("_"),isFormat:/\[ ?[\u0412\u0432] ?(?:\u043f\u0440\u043e\u0448\u043b\u0443\u044e|\u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0443\u044e|\u044d\u0442\u0443)? ?] ?dddd/},weekdaysShort:"\u0432\u0441_\u043f\u043d_\u0432\u0442_\u0441\u0440_\u0447\u0442_\u043f\u0442_\u0441\u0431".split("_"),weekdaysMin:"\u0432\u0441_\u043f\u043d_\u0432\u0442_\u0441\u0440_\u0447\u0442_\u043f\u0442_\u0441\u0431".split("_"),monthsParse:t,longMonthsParse:t,shortMonthsParse:t,monthsRegex:/^(\u044f\u043d\u0432\u0430\u0440[\u044c\u044f]|\u044f\u043d\u0432\.?|\u0444\u0435\u0432\u0440\u0430\u043b[\u044c\u044f]|\u0444\u0435\u0432\u0440?\.?|\u043c\u0430\u0440\u0442\u0430?|\u043c\u0430\u0440\.?|\u0430\u043f\u0440\u0435\u043b[\u044c\u044f]|\u0430\u043f\u0440\.?|\u043c\u0430[\u0439\u044f]|\u0438\u044e\u043d[\u044c\u044f]|\u0438\u044e\u043d\.?|\u0438\u044e\u043b[\u044c\u044f]|\u0438\u044e\u043b\.?|\u0430\u0432\u0433\u0443\u0441\u0442\u0430?|\u0430\u0432\u0433\.?|\u0441\u0435\u043d\u0442\u044f\u0431\u0440[\u044c\u044f]|\u0441\u0435\u043d\u0442?\.?|\u043e\u043a\u0442\u044f\u0431\u0440[\u044c\u044f]|\u043e\u043a\u0442\.?|\u043d\u043e\u044f\u0431\u0440[\u044c\u044f]|\u043d\u043e\u044f\u0431?\.?|\u0434\u0435\u043a\u0430\u0431\u0440[\u044c\u044f]|\u0434\u0435\u043a\.?)/i,monthsShortRegex:/^(\u044f\u043d\u0432\u0430\u0440[\u044c\u044f]|\u044f\u043d\u0432\.?|\u0444\u0435\u0432\u0440\u0430\u043b[\u044c\u044f]|\u0444\u0435\u0432\u0440?\.?|\u043c\u0430\u0440\u0442\u0430?|\u043c\u0430\u0440\.?|\u0430\u043f\u0440\u0435\u043b[\u044c\u044f]|\u0430\u043f\u0440\.?|\u043c\u0430[\u0439\u044f]|\u0438\u044e\u043d[\u044c\u044f]|\u0438\u044e\u043d\.?|\u0438\u044e\u043b[\u044c\u044f]|\u0438\u044e\u043b\.?|\u0430\u0432\u0433\u0443\u0441\u0442\u0430?|\u0430\u0432\u0433\.?|\u0441\u0435\u043d\u0442\u044f\u0431\u0440[\u044c\u044f]|\u0441\u0435\u043d\u0442?\.?|\u043e\u043a\u0442\u044f\u0431\u0440[\u044c\u044f]|\u043e\u043a\u0442\.?|\u043d\u043e\u044f\u0431\u0440[\u044c\u044f]|\u043d\u043e\u044f\u0431?\.?|\u0434\u0435\u043a\u0430\u0431\u0440[\u044c\u044f]|\u0434\u0435\u043a\.?)/i,monthsStrictRegex:/^(\u044f\u043d\u0432\u0430\u0440[\u044f\u044c]|\u0444\u0435\u0432\u0440\u0430\u043b[\u044f\u044c]|\u043c\u0430\u0440\u0442\u0430?|\u0430\u043f\u0440\u0435\u043b[\u044f\u044c]|\u043c\u0430[\u044f\u0439]|\u0438\u044e\u043d[\u044f\u044c]|\u0438\u044e\u043b[\u044f\u044c]|\u0430\u0432\u0433\u0443\u0441\u0442\u0430?|\u0441\u0435\u043d\u0442\u044f\u0431\u0440[\u044f\u044c]|\u043e\u043a\u0442\u044f\u0431\u0440[\u044f\u044c]|\u043d\u043e\u044f\u0431\u0440[\u044f\u044c]|\u0434\u0435\u043a\u0430\u0431\u0440[\u044f\u044c])/i,monthsShortStrictRegex:/^(\u044f\u043d\u0432\.|\u0444\u0435\u0432\u0440?\.|\u043c\u0430\u0440[\u0442.]|\u0430\u043f\u0440\.|\u043c\u0430[\u044f\u0439]|\u0438\u044e\u043d[\u044c\u044f.]|\u0438\u044e\u043b[\u044c\u044f.]|\u0430\u0432\u0433\.|\u0441\u0435\u043d\u0442?\.|\u043e\u043a\u0442\.|\u043d\u043e\u044f\u0431?\.|\u0434\u0435\u043a\.)/i,longDateFormat:{LT:"H:mm",LTS:"H:mm:ss",L:"DD.MM.YYYY",LL:"D MMMM YYYY \u0433.",LLL:"D MMMM YYYY \u0433., H:mm",LLLL:"dddd, D MMMM YYYY \u0433., H:mm"},calendar:{sameDay:"[\u0421\u0435\u0433\u043e\u0434\u043d\u044f, \u0432] LT",nextDay:"[\u0417\u0430\u0432\u0442\u0440\u0430, \u0432] LT",lastDay:"[\u0412\u0447\u0435\u0440\u0430, \u0432] LT",nextWeek:function(e){if(e.week()===this.week())return 2===this.day()?"[\u0412\u043e] dddd, [\u0432] LT":"[\u0412] dddd, [\u0432] LT";switch(this.day()){case 0:return"[\u0412 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0435\u0435] dddd, [\u0432] LT";case 1:case 2:case 4:return"[\u0412 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0439] dddd, [\u0432] LT";case 3:case 5:case 6:return"[\u0412 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0443\u044e] dddd, [\u0432] LT"}},lastWeek:function(e){if(e.week()===this.week())return 2===this.day()?"[\u0412\u043e] dddd, [\u0432] LT":"[\u0412] dddd, [\u0432] LT";switch(this.day()){case 0:return"[\u0412 \u043f\u0440\u043e\u0448\u043b\u043e\u0435] dddd, [\u0432] LT";case 1:case 2:case 4:return"[\u0412 \u043f\u0440\u043e\u0448\u043b\u044b\u0439] dddd, [\u0432] LT";case 3:case 5:case 6:return"[\u0412 \u043f\u0440\u043e\u0448\u043b\u0443\u044e] dddd, [\u0432] LT"}},sameElse:"L"},relativeTime:{future:"\u0447\u0435\u0440\u0435\u0437 %s",past:"%s \u043d\u0430\u0437\u0430\u0434",s:"\u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u0441\u0435\u043a\u0443\u043d\u0434",ss:Tn,m:Tn,mm:Tn,h:"\u0447\u0430\u0441",hh:Tn,d:"\u0434\u0435\u043d\u044c",dd:Tn,w:"\u043d\u0435\u0434\u0435\u043b\u044f",ww:Tn,M:"\u043c\u0435\u0441\u044f\u0446",MM:Tn,y:"\u0433\u043e\u0434",yy:Tn},meridiemParse:/\u043d\u043e\u0447\u0438|\u0443\u0442\u0440\u0430|\u0434\u043d\u044f|\u0432\u0435\u0447\u0435\u0440\u0430/i,isPM:function(e){return/^(\u0434\u043d\u044f|\u0432\u0435\u0447\u0435\u0440\u0430)$/.test(e)},meridiem:function(e,a,t){return e<4?"\u043d\u043e\u0447\u0438":e<12?"\u0443\u0442\u0440\u0430":e<17?"\u0434\u043d\u044f":"\u0432\u0435\u0447\u0435\u0440\u0430"},dayOfMonthOrdinalParse:/\d{1,2}-(\u0439|\u0433\u043e|\u044f)/,ordinal:function(e,a){switch(a){case"M":case"d":case"DDD":return e+"-\u0439";case"D":return e+"-\u0433\u043e";case"w":case"W":return e+"-\u044f";default:return e}},week:{dow:1,doy:4}}),m=["\u062c\u0646\u0648\u0631\u064a","\u0641\u064a\u0628\u0631\u0648\u0631\u064a","\u0645\u0627\u0631\u0686","\u0627\u067e\u0631\u064a\u0644","\u0645\u0626\u064a","\u062c\u0648\u0646","\u062c\u0648\u0644\u0627\u0621\u0650","\u0622\u06af\u0633\u067d","\u0633\u064a\u067e\u067d\u0645\u0628\u0631","\u0622\u06aa\u067d\u0648\u0628\u0631","\u0646\u0648\u0645\u0628\u0631","\u068a\u0633\u0645\u0628\u0631"],o=["\u0622\u0686\u0631","\u0633\u0648\u0645\u0631","\u0627\u06b1\u0627\u0631\u0648","\u0627\u0631\u0628\u0639","\u062e\u0645\u064a\u0633","\u062c\u0645\u0639","\u0687\u0646\u0687\u0631"],c.defineLocale("sd",{months:m,monthsShort:m,weekdays:o,weekdaysShort:o,weekdaysMin:o,longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd\u060c D MMMM YYYY HH:mm"},meridiemParse:/\u0635\u0628\u062d|\u0634\u0627\u0645/,isPM:function(e){return"\u0634\u0627\u0645"===e},meridiem:function(e,a,t){return e<12?"\u0635\u0628\u062d":"\u0634\u0627\u0645"},calendar:{sameDay:"[\u0627\u0684] LT",nextDay:"[\u0633\u0680\u0627\u06bb\u064a] LT",nextWeek:"dddd [\u0627\u06b3\u064a\u0646 \u0647\u0641\u062a\u064a \u062a\u064a] LT",lastDay:"[\u06aa\u0627\u0644\u0647\u0647] LT",lastWeek:"[\u06af\u0632\u0631\u064a\u0644 \u0647\u0641\u062a\u064a] dddd [\u062a\u064a] LT",sameElse:"L"},relativeTime:{future:"%s \u067e\u0648\u0621",past:"%s \u0627\u06b3",s:"\u0686\u0646\u062f \u0633\u064a\u06aa\u0646\u068a",ss:"%d \u0633\u064a\u06aa\u0646\u068a",m:"\u0647\u06aa \u0645\u0646\u067d",mm:"%d \u0645\u0646\u067d",h:"\u0647\u06aa \u06aa\u0644\u0627\u06aa",hh:"%d \u06aa\u0644\u0627\u06aa",d:"\u0647\u06aa \u068f\u064a\u0646\u0647\u0646",dd:"%d \u068f\u064a\u0646\u0647\u0646",M:"\u0647\u06aa \u0645\u0647\u064a\u0646\u0648",MM:"%d \u0645\u0647\u064a\u0646\u0627",y:"\u0647\u06aa \u0633\u0627\u0644",yy:"%d \u0633\u0627\u0644"},preparse:function(e){return e.replace(/\u060c/g,",")},postformat:function(e){return e.replace(/,/g,"\u060c")},week:{dow:1,doy:4}}),c.defineLocale("se",{months:"o\u0111\u0111ajagem\xe1nnu_guovvam\xe1nnu_njuk\u010dam\xe1nnu_cuo\u014bom\xe1nnu_miessem\xe1nnu_geassem\xe1nnu_suoidnem\xe1nnu_borgem\xe1nnu_\u010dak\u010dam\xe1nnu_golggotm\xe1nnu_sk\xe1bmam\xe1nnu_juovlam\xe1nnu".split("_"),monthsShort:"o\u0111\u0111j_guov_njuk_cuo_mies_geas_suoi_borg_\u010dak\u010d_golg_sk\xe1b_juov".split("_"),weekdays:"sotnabeaivi_vuoss\xe1rga_ma\u014b\u014beb\xe1rga_gaskavahkku_duorastat_bearjadat_l\xe1vvardat".split("_"),weekdaysShort:"sotn_vuos_ma\u014b_gask_duor_bear_l\xe1v".split("_"),weekdaysMin:"s_v_m_g_d_b_L".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD.MM.YYYY",LL:"MMMM D. [b.] YYYY",LLL:"MMMM D. [b.] YYYY [ti.] HH:mm",LLLL:"dddd, MMMM D. 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12===e&&(e=0),"\u0baf\u0bbe\u0bae\u0bae\u0bcd"===a?e<2?e:e+12:"\u0bb5\u0bc8\u0b95\u0bb1\u0bc8"===a||"\u0b95\u0bbe\u0bb2\u0bc8"===a||"\u0ba8\u0ba3\u0bcd\u0baa\u0b95\u0bb2\u0bcd"===a&&10<=e?e:e+12},week:{dow:0,doy:6}}),c.defineLocale("te",{months:"\u0c1c\u0c28\u0c35\u0c30\u0c3f_\u0c2b\u0c3f\u0c2c\u0c4d\u0c30\u0c35\u0c30\u0c3f_\u0c2e\u0c3e\u0c30\u0c4d\u0c1a\u0c3f_\u0c0f\u0c2a\u0c4d\u0c30\u0c3f\u0c32\u0c4d_\u0c2e\u0c47_\u0c1c\u0c42\u0c28\u0c4d_\u0c1c\u0c41\u0c32\u0c48_\u0c06\u0c17\u0c38\u0c4d\u0c1f\u0c41_\u0c38\u0c46\u0c2a\u0c4d\u0c1f\u0c46\u0c02\u0c2c\u0c30\u0c4d_\u0c05\u0c15\u0c4d\u0c1f\u0c4b\u0c2c\u0c30\u0c4d_\u0c28\u0c35\u0c02\u0c2c\u0c30\u0c4d_\u0c21\u0c3f\u0c38\u0c46\u0c02\u0c2c\u0c30\u0c4d".split("_"),monthsShort:"\u0c1c\u0c28._\u0c2b\u0c3f\u0c2c\u0c4d\u0c30._\u0c2e\u0c3e\u0c30\u0c4d\u0c1a\u0c3f_\u0c0f\u0c2a\u0c4d\u0c30\u0c3f._\u0c2e\u0c47_\u0c1c\u0c42\u0c28\u0c4d_\u0c1c\u0c41\u0c32\u0c48_\u0c06\u0c17._\u0c38\u0c46\u0c2a\u0c4d._\u0c05\u0c15\u0c4d\u0c1f\u0c4b._\u0c28\u0c35._\u0c21\u0c3f\u0c38\u0c46.".split("_"),monthsParseExact:!0,weekdays:"\u0c06\u0c26\u0c3f\u0c35\u0c3e\u0c30\u0c02_\u0c38\u0c4b\u0c2e\u0c35\u0c3e\u0c30\u0c02_\u0c2e\u0c02\u0c17\u0c33\u0c35\u0c3e\u0c30\u0c02_\u0c2c\u0c41\u0c27\u0c35\u0c3e\u0c30\u0c02_\u0c17\u0c41\u0c30\u0c41\u0c35\u0c3e\u0c30\u0c02_\u0c36\u0c41\u0c15\u0c4d\u0c30\u0c35\u0c3e\u0c30\u0c02_\u0c36\u0c28\u0c3f\u0c35\u0c3e\u0c30\u0c02".split("_"),weekdaysShort:"\u0c06\u0c26\u0c3f_\u0c38\u0c4b\u0c2e_\u0c2e\u0c02\u0c17\u0c33_\u0c2c\u0c41\u0c27_\u0c17\u0c41\u0c30\u0c41_\u0c36\u0c41\u0c15\u0c4d\u0c30_\u0c36\u0c28\u0c3f".split("_"),weekdaysMin:"\u0c06_\u0c38\u0c4b_\u0c2e\u0c02_\u0c2c\u0c41_\u0c17\u0c41_\u0c36\u0c41_\u0c36".split("_"),longDateFormat:{LT:"A h:mm",LTS:"A h:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY, A h:mm",LLLL:"dddd, D MMMM YYYY, A h:mm"},calendar:{sameDay:"[\u0c28\u0c47\u0c21\u0c41] LT",nextDay:"[\u0c30\u0c47\u0c2a\u0c41] LT",nextWeek:"dddd, LT",lastDay:"[\u0c28\u0c3f\u0c28\u0c4d\u0c28] LT",lastWeek:"[\u0c17\u0c24] dddd, LT",sameElse:"L"},relativeTime:{future:"%s \u0c32\u0c4b",past:"%s \u0c15\u0c4d\u0c30\u0c3f\u0c24\u0c02",s:"\u0c15\u0c4a\u0c28\u0c4d\u0c28\u0c3f \u0c15\u0c4d\u0c37\u0c23\u0c3e\u0c32\u0c41",ss:"%d \u0c38\u0c46\u0c15\u0c28\u0c4d\u0c32\u0c41",m:"\u0c12\u0c15 \u0c28\u0c3f\u0c2e\u0c3f\u0c37\u0c02",mm:"%d \u0c28\u0c3f\u0c2e\u0c3f\u0c37\u0c3e\u0c32\u0c41",h:"\u0c12\u0c15 \u0c17\u0c02\u0c1f",hh:"%d \u0c17\u0c02\u0c1f\u0c32\u0c41",d:"\u0c12\u0c15 \u0c30\u0c4b\u0c1c\u0c41",dd:"%d \u0c30\u0c4b\u0c1c\u0c41\u0c32\u0c41",M:"\u0c12\u0c15 \u0c28\u0c46\u0c32",MM:"%d \u0c28\u0c46\u0c32\u0c32\u0c41",y:"\u0c12\u0c15 \u0c38\u0c02\u0c35\u0c24\u0c4d\u0c38\u0c30\u0c02",yy:"%d \u0c38\u0c02\u0c35\u0c24\u0c4d\u0c38\u0c30\u0c3e\u0c32\u0c41"},dayOfMonthOrdinalParse:/\d{1,2}\u0c35/,ordinal:"%d\u0c35",meridiemParse:/\u0c30\u0c3e\u0c24\u0c4d\u0c30\u0c3f|\u0c09\u0c26\u0c2f\u0c02|\u0c2e\u0c27\u0c4d\u0c2f\u0c3e\u0c39\u0c4d\u0c28\u0c02|\u0c38\u0c3e\u0c2f\u0c02\u0c24\u0c4d\u0c30\u0c02/,meridiemHour:function(e,a){return 12===e&&(e=0),"\u0c30\u0c3e\u0c24\u0c4d\u0c30\u0c3f"===a?e<4?e:e+12:"\u0c09\u0c26\u0c2f\u0c02"===a?e:"\u0c2e\u0c27\u0c4d\u0c2f\u0c3e\u0c39\u0c4d\u0c28\u0c02"===a?10<=e?e:e+12:"\u0c38\u0c3e\u0c2f\u0c02\u0c24\u0c4d\u0c30\u0c02"===a?e+12:void 0},meridiem:function(e,a,t){return e<4?"\u0c30\u0c3e\u0c24\u0c4d\u0c30\u0c3f":e<10?"\u0c09\u0c26\u0c2f\u0c02":e<17?"\u0c2e\u0c27\u0c4d\u0c2f\u0c3e\u0c39\u0c4d\u0c28\u0c02":e<20?"\u0c38\u0c3e\u0c2f\u0c02\u0c24\u0c4d\u0c30\u0c02":"\u0c30\u0c3e\u0c24\u0c4d\u0c30\u0c3f"},week:{dow:0,doy:6}}),c.defineLocale("tet",{months:"Janeiru_Fevereiru_Marsu_Abril_Maiu_Ju\xf1u_Jullu_Agustu_Setembru_Outubru_Novembru_Dezembru".split("_"),monthsShort:"Jan_Fev_Mar_Abr_Mai_Jun_Jul_Ago_Set_Out_Nov_Dez".split("_"),weekdays:"Domingu_Segunda_Tersa_Kuarta_Kinta_Sesta_Sabadu".split("_"),weekdaysShort:"Dom_Seg_Ters_Kua_Kint_Sest_Sab".split("_"),weekdaysMin:"Do_Seg_Te_Ku_Ki_Ses_Sa".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd, D MMMM YYYY HH:mm"},calendar:{sameDay:"[Ohin iha] LT",nextDay:"[Aban iha] LT",nextWeek:"dddd [iha] LT",lastDay:"[Horiseik iha] LT",lastWeek:"dddd [semana kotuk] [iha] LT",sameElse:"L"},relativeTime:{future:"iha %s",past:"%s liuba",s:"segundu balun",ss:"segundu %d",m:"minutu ida",mm:"minutu %d",h:"oras ida",hh:"oras %d",d:"loron ida",dd:"loron %d",M:"fulan ida",MM:"fulan %d",y:"tinan ida",yy:"tinan %d"},dayOfMonthOrdinalParse:/\d{1,2}(st|nd|rd|th)/,ordinal:function(e){var a=e%10;return e+(1==~~(e%100/10)?"th":1==a?"st":2==a?"nd":3==a?"rd":"th")},week:{dow:1,doy:4}}),{0:"-\u0443\u043c",1:"-\u0443\u043c",2:"-\u044e\u043c",3:"-\u044e\u043c",4:"-\u0443\u043c",5:"-\u0443\u043c",6:"-\u0443\u043c",7:"-\u0443\u043c",8:"-\u0443\u043c",9:"-\u0443\u043c",10:"-\u0443\u043c",12:"-\u0443\u043c",13:"-\u0443\u043c",20:"-\u0443\u043c",30:"-\u044e\u043c",40:"-\u0443\u043c",50:"-\u0443\u043c",60:"-\u0443\u043c",70:"-\u0443\u043c",80:"-\u0443\u043c",90:"-\u0443\u043c",100:"-\u0443\u043c"}),jn=(c.defineLocale("tg",{months:{format:"\u044f\u043d\u0432\u0430\u0440\u0438_\u0444\u0435\u0432\u0440\u0430\u043b\u0438_\u043c\u0430\u0440\u0442\u0438_\u0430\u043f\u0440\u0435\u043b\u0438_\u043c\u0430\u0439\u0438_\u0438\u044e\u043d\u0438_\u0438\u044e\u043b\u0438_\u0430\u0432\u0433\u0443\u0441\u0442\u0438_\u0441\u0435\u043d\u0442\u044f\u0431\u0440\u0438_\u043e\u043a\u0442\u044f\u0431\u0440\u0438_\u043d\u043e\u044f\u0431\u0440\u0438_\u0434\u0435\u043a\u0430\u0431\u0440\u0438".split("_"),standalone:"\u044f\u043d\u0432\u0430\u0440_\u0444\u0435\u0432\u0440\u0430\u043b_\u043c\u0430\u0440\u0442_\u0430\u043f\u0440\u0435\u043b_\u043c\u0430\u0439_\u0438\u044e\u043d_\u0438\u044e\u043b_\u0430\u0432\u0433\u0443\u0441\u0442_\u0441\u0435\u043d\u0442\u044f\u0431\u0440_\u043e\u043a\u0442\u044f\u0431\u0440_\u043d\u043e\u044f\u0431\u0440_\u0434\u0435\u043a\u0430\u0431\u0440".split("_")},monthsShort:"\u044f\u043d\u0432_\u0444\u0435\u0432_\u043c\u0430\u0440_\u0430\u043f\u0440_\u043c\u0430\u0439_\u0438\u044e\u043d_\u0438\u044e\u043b_\u0430\u0432\u0433_\u0441\u0435\u043d_\u043e\u043a\u0442_\u043d\u043e\u044f_\u0434\u0435\u043a".split("_"),weekdays:"\u044f\u043a\u0448\u0430\u043d\u0431\u0435_\u0434\u0443\u0448\u0430\u043d\u0431\u0435_\u0441\u0435\u0448\u0430\u043d\u0431\u0435_\u0447\u043e\u0440\u0448\u0430\u043d\u0431\u0435_\u043f\u0430\u043d\u04b7\u0448\u0430\u043d\u0431\u0435_\u04b7\u0443\u043c\u044a\u0430_\u0448\u0430\u043d\u0431\u0435".split("_"),weekdaysShort:"\u044f\u0448\u0431_\u0434\u0448\u0431_\u0441\u0448\u0431_\u0447\u0448\u0431_\u043f\u0448\u0431_\u04b7\u0443\u043c_\u0448\u043d\u0431".split("_"),weekdaysMin:"\u044f\u0448_\u0434\u0448_\u0441\u0448_\u0447\u0448_\u043f\u0448_\u04b7\u043c_\u0448\u0431".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD.MM.YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd, D MMMM YYYY HH:mm"},calendar:{sameDay:"[\u0418\u043c\u0440\u04ef\u0437 \u0441\u043e\u0430\u0442\u0438] LT",nextDay:"[\u0424\u0430\u0440\u0434\u043e \u0441\u043e\u0430\u0442\u0438] LT",lastDay:"[\u0414\u0438\u0440\u04ef\u0437 \u0441\u043e\u0430\u0442\u0438] LT",nextWeek:"dddd[\u0438] [\u04b3\u0430\u0444\u0442\u0430\u0438 \u043e\u044f\u043d\u0434\u0430 \u0441\u043e\u0430\u0442\u0438] LT",lastWeek:"dddd[\u0438] [\u04b3\u0430\u0444\u0442\u0430\u0438 \u0433\u0443\u0437\u0430\u0448\u0442\u0430 \u0441\u043e\u0430\u0442\u0438] LT",sameElse:"L"},relativeTime:{future:"\u0431\u0430\u044a\u0434\u0438 %s",past:"%s \u043f\u0435\u0448",s:"\u044f\u043a\u0447\u0430\u043d\u0434 \u0441\u043e\u043d\u0438\u044f",m:"\u044f\u043a \u0434\u0430\u049b\u0438\u049b\u0430",mm:"%d \u0434\u0430\u049b\u0438\u049b\u0430",h:"\u044f\u043a \u0441\u043e\u0430\u0442",hh:"%d \u0441\u043e\u0430\u0442",d:"\u044f\u043a \u0440\u04ef\u0437",dd:"%d \u0440\u04ef\u0437",M:"\u044f\u043a \u043c\u043e\u04b3",MM:"%d \u043c\u043e\u04b3",y:"\u044f\u043a \u0441\u043e\u043b",yy:"%d \u0441\u043e\u043b"},meridiemParse:/\u0448\u0430\u0431|\u0441\u0443\u0431\u04b3|\u0440\u04ef\u0437|\u0431\u0435\u0433\u043e\u04b3/,meridiemHour:function(e,a){return 12===e&&(e=0),"\u0448\u0430\u0431"===a?e<4?e:e+12:"\u0441\u0443\u0431\u04b3"===a?e:"\u0440\u04ef\u0437"===a?11<=e?e:e+12:"\u0431\u0435\u0433\u043e\u04b3"===a?e+12:void 0},meridiem:function(e,a,t){return e<4?"\u0448\u0430\u0431":e<11?"\u0441\u0443\u0431\u04b3":e<16?"\u0440\u04ef\u0437":e<19?"\u0431\u0435\u0433\u043e\u04b3":"\u0448\u0430\u0431"},dayOfMonthOrdinalParse:/\d{1,2}-(\u0443\u043c|\u044e\u043c)/,ordinal:function(e){return e+(vn[e]||vn[e%10]||vn[100<=e?100:null])},week:{dow:1,doy:7}}),c.defineLocale("th",{months:"\u0e21\u0e01\u0e23\u0e32\u0e04\u0e21_\u0e01\u0e38\u0e21\u0e20\u0e32\u0e1e\u0e31\u0e19\u0e18\u0e4c_\u0e21\u0e35\u0e19\u0e32\u0e04\u0e21_\u0e40\u0e21\u0e29\u0e32\u0e22\u0e19_\u0e1e\u0e24\u0e29\u0e20\u0e32\u0e04\u0e21_\u0e21\u0e34\u0e16\u0e38\u0e19\u0e32\u0e22\u0e19_\u0e01\u0e23\u0e01\u0e0e\u0e32\u0e04\u0e21_\u0e2a\u0e34\u0e07\u0e2b\u0e32\u0e04\u0e21_\u0e01\u0e31\u0e19\u0e22\u0e32\u0e22\u0e19_\u0e15\u0e38\u0e25\u0e32\u0e04\u0e21_\u0e1e\u0e24\u0e28\u0e08\u0e34\u0e01\u0e32\u0e22\u0e19_\u0e18\u0e31\u0e19\u0e27\u0e32\u0e04\u0e21".split("_"),monthsShort:"\u0e21.\u0e04._\u0e01.\u0e1e._\u0e21\u0e35.\u0e04._\u0e40\u0e21.\u0e22._\u0e1e.\u0e04._\u0e21\u0e34.\u0e22._\u0e01.\u0e04._\u0e2a.\u0e04._\u0e01.\u0e22._\u0e15.\u0e04._\u0e1e.\u0e22._\u0e18.\u0e04.".split("_"),monthsParseExact:!0,weekdays:"\u0e2d\u0e32\u0e17\u0e34\u0e15\u0e22\u0e4c_\u0e08\u0e31\u0e19\u0e17\u0e23\u0e4c_\u0e2d\u0e31\u0e07\u0e04\u0e32\u0e23_\u0e1e\u0e38\u0e18_\u0e1e\u0e24\u0e2b\u0e31\u0e2a\u0e1a\u0e14\u0e35_\u0e28\u0e38\u0e01\u0e23\u0e4c_\u0e40\u0e2a\u0e32\u0e23\u0e4c".split("_"),weekdaysShort:"\u0e2d\u0e32\u0e17\u0e34\u0e15\u0e22\u0e4c_\u0e08\u0e31\u0e19\u0e17\u0e23\u0e4c_\u0e2d\u0e31\u0e07\u0e04\u0e32\u0e23_\u0e1e\u0e38\u0e18_\u0e1e\u0e24\u0e2b\u0e31\u0e2a_\u0e28\u0e38\u0e01\u0e23\u0e4c_\u0e40\u0e2a\u0e32\u0e23\u0e4c".split("_"),weekdaysMin:"\u0e2d\u0e32._\u0e08._\u0e2d._\u0e1e._\u0e1e\u0e24._\u0e28._\u0e2a.".split("_"),weekdaysParseExact:!0,longDateFormat:{LT:"H:mm",LTS:"H:mm:ss",L:"DD/MM/YYYY",LL:"D 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MMMM [dallas] YYYY HH.mm"},meridiemParse:/d\'o|d\'a/i,isPM:function(e){return"d'o"===e.toLowerCase()},meridiem:function(e,a,t){return 11<e?t?"d'o":"D'O":t?"d'a":"D'A"},calendar:{sameDay:"[oxhi \xe0] LT",nextDay:"[dem\xe0 \xe0] LT",nextWeek:"dddd [\xe0] LT",lastDay:"[ieiri \xe0] LT",lastWeek:"[s\xfcr el] dddd [lasteu \xe0] LT",sameElse:"L"},relativeTime:{future:"osprei %s",past:"ja%s",s:Wn,ss:Wn,m:Wn,mm:Wn,h:Wn,hh:Wn,d:Wn,dd:Wn,M:Wn,MM:Wn,y:Wn,yy:Wn},dayOfMonthOrdinalParse:/\d{1,2}\./,ordinal:"%d.",week:{dow:1,doy:4}}),c.defineLocale("tzm-latn",{months:"innayr_br\u02e4ayr\u02e4_mar\u02e4s\u02e4_ibrir_mayyw_ywnyw_ywlywz_\u0263w\u0161t_\u0161wtanbir_kt\u02e4wbr\u02e4_nwwanbir_dwjnbir".split("_"),monthsShort:"innayr_br\u02e4ayr\u02e4_mar\u02e4s\u02e4_ibrir_mayyw_ywnyw_ywlywz_\u0263w\u0161t_\u0161wtanbir_kt\u02e4wbr\u02e4_nwwanbir_dwjnbir".split("_"),weekdays:"asamas_aynas_asinas_akras_akwas_asimwas_asi\u1e0dyas".split("_"),weekdaysShort:"asamas_aynas_asinas_akras_akwas_asimwas_asi\u1e0dyas".split("_"),weekdaysMin:"asamas_aynas_asinas_akras_akwas_asimwas_asi\u1e0dyas".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd D MMMM YYYY HH:mm"},calendar:{sameDay:"[asdkh g] LT",nextDay:"[aska g] LT",nextWeek:"dddd [g] LT",lastDay:"[assant g] LT",lastWeek:"dddd [g] LT",sameElse:"L"},relativeTime:{future:"dadkh s yan %s",past:"yan %s",s:"imik",ss:"%d imik",m:"minu\u1e0d",mm:"%d minu\u1e0d",h:"sa\u025ba",hh:"%d tassa\u025bin",d:"ass",dd:"%d ossan",M:"ayowr",MM:"%d iyyirn",y:"asgas",yy:"%d isgasn"},week:{dow:6,doy:12}}),c.defineLocale("tzm",{months:"\u2d49\u2d4f\u2d4f\u2d30\u2d62\u2d54_\u2d31\u2d55\u2d30\u2d62\u2d55_\u2d4e\u2d30\u2d55\u2d5a_\u2d49\u2d31\u2d54\u2d49\u2d54_\u2d4e\u2d30\u2d62\u2d62\u2d53_\u2d62\u2d53\u2d4f\u2d62\u2d53_\u2d62\u2d53\u2d4d\u2d62\u2d53\u2d63_\u2d56\u2d53\u2d5b\u2d5c_\u2d5b\u2d53\u2d5c\u2d30\u2d4f\u2d31\u2d49\u2d54_\u2d3d\u2d5f\u2d53\u2d31\u2d55_\u2d4f\u2d53\u2d61\u2d30\u2d4f\u2d31\u2d49\u2d54_\u2d37\u2d53\u2d4a\u2d4f\u2d31\u2d49\u2d54".split("_"),monthsShort:"\u2d49\u2d4f\u2d4f\u2d30\u2d62\u2d54_\u2d31\u2d55\u2d30\u2d62\u2d55_\u2d4e\u2d30\u2d55\u2d5a_\u2d49\u2d31\u2d54\u2d49\u2d54_\u2d4e\u2d30\u2d62\u2d62\u2d53_\u2d62\u2d53\u2d4f\u2d62\u2d53_\u2d62\u2d53\u2d4d\u2d62\u2d53\u2d63_\u2d56\u2d53\u2d5b\u2d5c_\u2d5b\u2d53\u2d5c\u2d30\u2d4f\u2d31\u2d49\u2d54_\u2d3d\u2d5f\u2d53\u2d31\u2d55_\u2d4f\u2d53\u2d61\u2d30\u2d4f\u2d31\u2d49\u2d54_\u2d37\u2d53\u2d4a\u2d4f\u2d31\u2d49\u2d54".split("_"),weekdays:"\u2d30\u2d59\u2d30\u2d4e\u2d30\u2d59_\u2d30\u2d62\u2d4f\u2d30\u2d59_\u2d30\u2d59\u2d49\u2d4f\u2d30\u2d59_\u2d30\u2d3d\u2d54\u2d30\u2d59_\u2d30\u2d3d\u2d61\u2d30\u2d59_\u2d30\u2d59\u2d49\u2d4e\u2d61\u2d30\u2d59_\u2d30\u2d59\u2d49\u2d39\u2d62\u2d30\u2d59".split("_"),weekdaysShort:"\u2d30\u2d59\u2d30\u2d4e\u2d30\u2d59_\u2d30\u2d62\u2d4f\u2d30\u2d59_\u2d30\u2d59\u2d49\u2d4f\u2d30\u2d59_\u2d30\u2d3d\u2d54\u2d30\u2d59_\u2d30\u2d3d\u2d61\u2d30\u2d59_\u2d30\u2d59\u2d49\u2d4e\u2d61\u2d30\u2d59_\u2d30\u2d59\u2d49\u2d39\u2d62\u2d30\u2d59".split("_"),weekdaysMin:"\u2d30\u2d59\u2d30\u2d4e\u2d30\u2d59_\u2d30\u2d62\u2d4f\u2d30\u2d59_\u2d30\u2d59\u2d49\u2d4f\u2d30\u2d59_\u2d30\u2d3d\u2d54\u2d30\u2d59_\u2d30\u2d3d\u2d61\u2d30\u2d59_\u2d30\u2d59\u2d49\u2d4e\u2d61\u2d30\u2d59_\u2d30\u2d59\u2d49\u2d39\u2d62\u2d30\u2d59".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd D MMMM YYYY HH:mm"},calendar:{sameDay:"[\u2d30\u2d59\u2d37\u2d45 \u2d34] LT",nextDay:"[\u2d30\u2d59\u2d3d\u2d30 \u2d34] LT",nextWeek:"dddd [\u2d34] LT",lastDay:"[\u2d30\u2d5a\u2d30\u2d4f\u2d5c \u2d34] LT",lastWeek:"dddd [\u2d34] LT",sameElse:"L"},relativeTime:{future:"\u2d37\u2d30\u2d37\u2d45 \u2d59 \u2d62\u2d30\u2d4f %s",past:"\u2d62\u2d30\u2d4f %s",s:"\u2d49\u2d4e\u2d49\u2d3d",ss:"%d \u2d49\u2d4e\u2d49\u2d3d",m:"\u2d4e\u2d49\u2d4f\u2d53\u2d3a",mm:"%d \u2d4e\u2d49\u2d4f\u2d53\u2d3a",h:"\u2d59\u2d30\u2d44\u2d30",hh:"%d \u2d5c\u2d30\u2d59\u2d59\u2d30\u2d44\u2d49\u2d4f",d:"\u2d30\u2d59\u2d59",dd:"%d o\u2d59\u2d59\u2d30\u2d4f",M:"\u2d30\u2d62o\u2d53\u2d54",MM:"%d \u2d49\u2d62\u2d62\u2d49\u2d54\u2d4f",y:"\u2d30\u2d59\u2d33\u2d30\u2d59",yy:"%d \u2d49\u2d59\u2d33\u2d30\u2d59\u2d4f"},week:{dow:6,doy:12}}),c.defineLocale("ug-cn",{months:"\u064a\u0627\u0646\u06cb\u0627\u0631_\u0641\u06d0\u06cb\u0631\u0627\u0644_\u0645\u0627\u0631\u062a_\u0626\u0627\u067e\u0631\u06d0\u0644_\u0645\u0627\u064a_\u0626\u0649\u064a\u06c7\u0646_\u0626\u0649\u064a\u06c7\u0644_\u0626\u0627\u06cb\u063a\u06c7\u0633\u062a_\u0633\u06d0\u0646\u062a\u06d5\u0628\u0649\u0631_\u0626\u06c6\u0643\u062a\u06d5\u0628\u0649\u0631_\u0646\u0648\u064a\u0627\u0628\u0649\u0631_\u062f\u06d0\u0643\u0627\u0628\u0649\u0631".split("_"),monthsShort:"\u064a\u0627\u0646\u06cb\u0627\u0631_\u0641\u06d0\u06cb\u0631\u0627\u0644_\u0645\u0627\u0631\u062a_\u0626\u0627\u067e\u0631\u06d0\u0644_\u0645\u0627\u064a_\u0626\u0649\u064a\u06c7\u0646_\u0626\u0649\u064a\u06c7\u0644_\u0626\u0627\u06cb\u063a\u06c7\u0633\u062a_\u0633\u06d0\u0646\u062a\u06d5\u0628\u0649\u0631_\u0626\u06c6\u0643\u062a\u06d5\u0628\u0649\u0631_\u0646\u0648\u064a\u0627\u0628\u0649\u0631_\u062f\u06d0\u0643\u0627\u0628\u0649\u0631".split("_"),weekdays:"\u064a\u06d5\u0643\u0634\u06d5\u0646\u0628\u06d5_\u062f\u06c8\u0634\u06d5\u0646\u0628\u06d5_\u0633\u06d5\u064a\u0634\u06d5\u0646\u0628\u06d5_\u0686\u0627\u0631\u0634\u06d5\u0646\u0628\u06d5_\u067e\u06d5\u064a\u0634\u06d5\u0646\u0628\u06d5_\u062c\u06c8\u0645\u06d5_\u0634\u06d5\u0646\u0628\u06d5".split("_"),weekdaysShort:"\u064a\u06d5_\u062f\u06c8_\u0633\u06d5_\u0686\u0627_\u067e\u06d5_\u062c\u06c8_\u0634\u06d5".split("_"),weekdaysMin:"\u064a\u06d5_\u062f\u06c8_\u0633\u06d5_\u0686\u0627_\u067e\u06d5_\u062c\u06c8_\u0634\u06d5".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"YYYY-MM-DD",LL:"YYYY-\u064a\u0649\u0644\u0649M-\u0626\u0627\u064a\u0646\u0649\u06adD-\u0643\u06c8\u0646\u0649",LLL:"YYYY-\u064a\u0649\u0644\u0649M-\u0626\u0627\u064a\u0646\u0649\u06adD-\u0643\u06c8\u0646\u0649\u060c HH:mm",LLLL:"dddd\u060c YYYY-\u064a\u0649\u0644\u0649M-\u0626\u0627\u064a\u0646\u0649\u06adD-\u0643\u06c8\u0646\u0649\u060c HH:mm"},meridiemParse:/\u064a\u06d0\u0631\u0649\u0645 \u0643\u06d0\u0686\u06d5|\u0633\u06d5\u06be\u06d5\u0631|\u0686\u06c8\u0634\u062a\u0649\u0646 \u0628\u06c7\u0631\u06c7\u0646|\u0686\u06c8\u0634|\u0686\u06c8\u0634\u062a\u0649\u0646 \u0643\u06d0\u064a\u0649\u0646|\u0643\u06d5\u0686/,meridiemHour:function(e,a){return 12===e&&(e=0),"\u064a\u06d0\u0631\u0649\u0645 \u0643\u06d0\u0686\u06d5"===a||"\u0633\u06d5\u06be\u06d5\u0631"===a||"\u0686\u06c8\u0634\u062a\u0649\u0646 \u0628\u06c7\u0631\u06c7\u0646"===a||"\u0686\u06c8\u0634\u062a\u0649\u0646 \u0643\u06d0\u064a\u0649\u0646"!==a&&"\u0643\u06d5\u0686"!==a&&11<=e?e:e+12},meridiem:function(e,a,t){e=100*e+a;return e<600?"\u064a\u06d0\u0631\u0649\u0645 \u0643\u06d0\u0686\u06d5":e<900?"\u0633\u06d5\u06be\u06d5\u0631":e<1130?"\u0686\u06c8\u0634\u062a\u0649\u0646 \u0628\u06c7\u0631\u06c7\u0646":e<1230?"\u0686\u06c8\u0634":e<1800?"\u0686\u06c8\u0634\u062a\u0649\u0646 \u0643\u06d0\u064a\u0649\u0646":"\u0643\u06d5\u0686"},calendar:{sameDay:"[\u0628\u06c8\u06af\u06c8\u0646 \u0633\u0627\u0626\u06d5\u062a] LT",nextDay:"[\u0626\u06d5\u062a\u06d5 \u0633\u0627\u0626\u06d5\u062a] LT",nextWeek:"[\u0643\u06d0\u0644\u06d5\u0631\u0643\u0649] dddd [\u0633\u0627\u0626\u06d5\u062a] LT",lastDay:"[\u062a\u06c6\u0646\u06c8\u06af\u06c8\u0646] LT",lastWeek:"[\u0626\u0627\u0644\u062f\u0649\u0646\u0642\u0649] dddd [\u0633\u0627\u0626\u06d5\u062a] LT",sameElse:"L"},relativeTime:{future:"%s \u0643\u06d0\u064a\u0649\u0646",past:"%s \u0628\u06c7\u0631\u06c7\u0646",s:"\u0646\u06d5\u0686\u0686\u06d5 \u0633\u06d0\u0643\u0648\u0646\u062a",ss:"%d \u0633\u06d0\u0643\u0648\u0646\u062a",m:"\u0628\u0649\u0631 \u0645\u0649\u0646\u06c7\u062a",mm:"%d \u0645\u0649\u0646\u06c7\u062a",h:"\u0628\u0649\u0631 \u0633\u0627\u0626\u06d5\u062a",hh:"%d \u0633\u0627\u0626\u06d5\u062a",d:"\u0628\u0649\u0631 \u0643\u06c8\u0646",dd:"%d \u0643\u06c8\u0646",M:"\u0628\u0649\u0631 \u0626\u0627\u064a",MM:"%d \u0626\u0627\u064a",y:"\u0628\u0649\u0631 \u064a\u0649\u0644",yy:"%d \u064a\u0649\u0644"},dayOfMonthOrdinalParse:/\d{1,2}(-\u0643\u06c8\u0646\u0649|-\u0626\u0627\u064a|-\u06be\u06d5\u067e\u062a\u06d5)/,ordinal:function(e,a){switch(a){case"d":case"D":case"DDD":return e+"-\u0643\u06c8\u0646\u0649";case"w":case"W":return e+"-\u06be\u06d5\u067e\u062a\u06d5";default:return e}},preparse:function(e){return e.replace(/\u060c/g,",")},postformat:function(e){return e.replace(/,/g,"\u060c")},week:{dow:1,doy:7}}),c.defineLocale("uk",{months:{format:"\u0441\u0456\u0447\u043d\u044f_\u043b\u044e\u0442\u043e\u0433\u043e_\u0431\u0435\u0440\u0435\u0437\u043d\u044f_\u043a\u0432\u0456\u0442\u043d\u044f_\u0442\u0440\u0430\u0432\u043d\u044f_\u0447\u0435\u0440\u0432\u043d\u044f_\u043b\u0438\u043f\u043d\u044f_\u0441\u0435\u0440\u043f\u043d\u044f_\u0432\u0435\u0440\u0435\u0441\u043d\u044f_\u0436\u043e\u0432\u0442\u043d\u044f_\u043b\u0438\u0441\u0442\u043e\u043f\u0430\u0434\u0430_\u0433\u0440\u0443\u0434\u043d\u044f".split("_"),standalone:"\u0441\u0456\u0447\u0435\u043d\u044c_\u043b\u044e\u0442\u0438\u0439_\u0431\u0435\u0440\u0435\u0437\u0435\u043d\u044c_\u043a\u0432\u0456\u0442\u0435\u043d\u044c_\u0442\u0440\u0430\u0432\u0435\u043d\u044c_\u0447\u0435\u0440\u0432\u0435\u043d\u044c_\u043b\u0438\u043f\u0435\u043d\u044c_\u0441\u0435\u0440\u043f\u0435\u043d\u044c_\u0432\u0435\u0440\u0435\u0441\u0435\u043d\u044c_\u0436\u043e\u0432\u0442\u0435\u043d\u044c_\u043b\u0438\u0441\u0442\u043e\u043f\u0430\u0434_\u0433\u0440\u0443\u0434\u0435\u043d\u044c".split("_")},monthsShort:"\u0441\u0456\u0447_\u043b\u044e\u0442_\u0431\u0435\u0440_\u043a\u0432\u0456\u0442_\u0442\u0440\u0430\u0432_\u0447\u0435\u0440\u0432_\u043b\u0438\u043f_\u0441\u0435\u0440\u043f_\u0432\u0435\u0440_\u0436\u043e\u0432\u0442_\u043b\u0438\u0441\u0442_\u0433\u0440\u0443\u0434".split("_"),weekdays:function(e,a){var t={nominative:"\u043d\u0435\u0434\u0456\u043b\u044f_\u043f\u043e\u043d\u0435\u0434\u0456\u043b\u043e\u043a_\u0432\u0456\u0432\u0442\u043e\u0440\u043e\u043a_\u0441\u0435\u0440\u0435\u0434\u0430_\u0447\u0435\u0442\u0432\u0435\u0440_\u043f\u2019\u044f\u0442\u043d\u0438\u0446\u044f_\u0441\u0443\u0431\u043e\u0442\u0430".split("_"),accusative:"\u043d\u0435\u0434\u0456\u043b\u044e_\u043f\u043e\u043d\u0435\u0434\u0456\u043b\u043e\u043a_\u0432\u0456\u0432\u0442\u043e\u0440\u043e\u043a_\u0441\u0435\u0440\u0435\u0434\u0443_\u0447\u0435\u0442\u0432\u0435\u0440_\u043f\u2019\u044f\u0442\u043d\u0438\u0446\u044e_\u0441\u0443\u0431\u043e\u0442\u0443".split("_"),genitive:"\u043d\u0435\u0434\u0456\u043b\u0456_\u043f\u043e\u043d\u0435\u0434\u0456\u043b\u043a\u0430_\u0432\u0456\u0432\u0442\u043e\u0440\u043a\u0430_\u0441\u0435\u0440\u0435\u0434\u0438_\u0447\u0435\u0442\u0432\u0435\u0440\u0433\u0430_\u043f\u2019\u044f\u0442\u043d\u0438\u0446\u0456_\u0441\u0443\u0431\u043e\u0442\u0438".split("_")};return!0===e?t.nominative.slice(1,7).concat(t.nominative.slice(0,1)):e?t[/(\[[\u0412\u0432\u0423\u0443]\]) ?dddd/.test(a)?"accusative":/\[?(?:\u043c\u0438\u043d\u0443\u043b\u043e\u0457|\u043d\u0430\u0441\u0442\u0443\u043f\u043d\u043e\u0457)? ?\] ?dddd/.test(a)?"genitive":"nominative"][e.day()]:t.nominative},weekdaysShort:"\u043d\u0434_\u043f\u043d_\u0432\u0442_\u0441\u0440_\u0447\u0442_\u043f\u0442_\u0441\u0431".split("_"),weekdaysMin:"\u043d\u0434_\u043f\u043d_\u0432\u0442_\u0441\u0440_\u0447\u0442_\u043f\u0442_\u0441\u0431".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD.MM.YYYY",LL:"D MMMM YYYY \u0440.",LLL:"D MMMM YYYY \u0440., HH:mm",LLLL:"dddd, D MMMM YYYY \u0440., HH:mm"},calendar:{sameDay:En("[\u0421\u044c\u043e\u0433\u043e\u0434\u043d\u0456 "),nextDay:En("[\u0417\u0430\u0432\u0442\u0440\u0430 "),lastDay:En("[\u0412\u0447\u043e\u0440\u0430 "),nextWeek:En("[\u0423] dddd ["),lastWeek:function(){switch(this.day()){case 0:case 3:case 5:case 6:return En("[\u041c\u0438\u043d\u0443\u043b\u043e\u0457] dddd [").call(this);case 1:case 2:case 4:return En("[\u041c\u0438\u043d\u0443\u043b\u043e\u0433\u043e] dddd [").call(this)}},sameElse:"L"},relativeTime:{future:"\u0437\u0430 %s",past:"%s \u0442\u043e\u043c\u0443",s:"\u0434\u0435\u043a\u0456\u043b\u044c\u043a\u0430 \u0441\u0435\u043a\u0443\u043d\u0434",ss:An,m:An,mm:An,h:"\u0433\u043e\u0434\u0438\u043d\u0443",hh:An,d:"\u0434\u0435\u043d\u044c",dd:An,M:"\u043c\u0456\u0441\u044f\u0446\u044c",MM:An,y:"\u0440\u0456\u043a",yy:An},meridiemParse:/\u043d\u043e\u0447\u0456|\u0440\u0430\u043d\u043a\u0443|\u0434\u043d\u044f|\u0432\u0435\u0447\u043e\u0440\u0430/,isPM:function(e){return/^(\u0434\u043d\u044f|\u0432\u0435\u0447\u043e\u0440\u0430)$/.test(e)},meridiem:function(e,a,t){return e<4?"\u043d\u043e\u0447\u0456":e<12?"\u0440\u0430\u043d\u043a\u0443":e<17?"\u0434\u043d\u044f":"\u0432\u0435\u0447\u043e\u0440\u0430"},dayOfMonthOrdinalParse:/\d{1,2}-(\u0439|\u0433\u043e)/,ordinal:function(e,a){switch(a){case"M":case"d":case"DDD":case"w":case"W":return e+"-\u0439";case"D":return e+"-\u0433\u043e";default:return e}},week:{dow:1,doy:7}});i=["\u062c\u0646\u0648\u0631\u06cc","\u0641\u0631\u0648\u0631\u06cc","\u0645\u0627\u0631\u0686","\u0627\u067e\u0631\u06cc\u0644","\u0645\u0626\u06cc","\u062c\u0648\u0646","\u062c\u0648\u0644\u0627\u0626\u06cc","\u0627\u06af\u0633\u062a","\u0633\u062a\u0645\u0628\u0631","\u0627\u06a9\u062a\u0648\u0628\u0631","\u0646\u0648\u0645\u0628\u0631","\u062f\u0633\u0645\u0628\u0631"],jt=["\u0627\u062a\u0648\u0627\u0631","\u067e\u06cc\u0631","\u0645\u0646\u06af\u0644","\u0628\u062f\u06be","\u062c\u0645\u0639\u0631\u0627\u062a","\u062c\u0645\u0639\u06c1","\u06c1\u0641\u062a\u06c1"];return c.defineLocale("ur",{months:i,monthsShort:i,weekdays:jt,weekdaysShort:jt,weekdaysMin:jt,longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd\u060c D MMMM YYYY HH:mm"},meridiemParse:/\u0635\u0628\u062d|\u0634\u0627\u0645/,isPM:function(e){return"\u0634\u0627\u0645"===e},meridiem:function(e,a,t){return e<12?"\u0635\u0628\u062d":"\u0634\u0627\u0645"},calendar:{sameDay:"[\u0622\u062c \u0628\u0648\u0642\u062a] LT",nextDay:"[\u06a9\u0644 \u0628\u0648\u0642\u062a] LT",nextWeek:"dddd [\u0628\u0648\u0642\u062a] LT",lastDay:"[\u06af\u0630\u0634\u062a\u06c1 \u0631\u0648\u0632 \u0628\u0648\u0642\u062a] LT",lastWeek:"[\u06af\u0630\u0634\u062a\u06c1] dddd [\u0628\u0648\u0642\u062a] LT",sameElse:"L"},relativeTime:{future:"%s \u0628\u0639\u062f",past:"%s \u0642\u0628\u0644",s:"\u0686\u0646\u062f \u0633\u06cc\u06a9\u0646\u0688",ss:"%d \u0633\u06cc\u06a9\u0646\u0688",m:"\u0627\u06cc\u06a9 \u0645\u0646\u0679",mm:"%d \u0645\u0646\u0679",h:"\u0627\u06cc\u06a9 \u06af\u06be\u0646\u0679\u06c1",hh:"%d \u06af\u06be\u0646\u0679\u06d2",d:"\u0627\u06cc\u06a9 \u062f\u0646",dd:"%d \u062f\u0646",M:"\u0627\u06cc\u06a9 \u0645\u0627\u06c1",MM:"%d \u0645\u0627\u06c1",y:"\u0627\u06cc\u06a9 \u0633\u0627\u0644",yy:"%d \u0633\u0627\u0644"},preparse:function(e){return e.replace(/\u060c/g,",")},postformat:function(e){return e.replace(/,/g,"\u060c")},week:{dow:1,doy:4}}),c.defineLocale("uz-latn",{months:"Yanvar_Fevral_Mart_Aprel_May_Iyun_Iyul_Avgust_Sentabr_Oktabr_Noyabr_Dekabr".split("_"),monthsShort:"Yan_Fev_Mar_Apr_May_Iyun_Iyul_Avg_Sen_Okt_Noy_Dek".split("_"),weekdays:"Yakshanba_Dushanba_Seshanba_Chorshanba_Payshanba_Juma_Shanba".split("_"),weekdaysShort:"Yak_Dush_Sesh_Chor_Pay_Jum_Shan".split("_"),weekdaysMin:"Ya_Du_Se_Cho_Pa_Ju_Sha".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"D MMMM YYYY, dddd HH:mm"},calendar:{sameDay:"[Bugun soat] LT [da]",nextDay:"[Ertaga] LT [da]",nextWeek:"dddd [kuni soat] LT [da]",lastDay:"[Kecha soat] LT [da]",lastWeek:"[O'tgan] dddd [kuni soat] LT [da]",sameElse:"L"},relativeTime:{future:"Yaqin %s ichida",past:"Bir necha %s oldin",s:"soniya",ss:"%d soniya",m:"bir daqiqa",mm:"%d daqiqa",h:"bir soat",hh:"%d soat",d:"bir kun",dd:"%d kun",M:"bir oy",MM:"%d oy",y:"bir yil",yy:"%d yil"},week:{dow:1,doy:7}}),c.defineLocale("uz",{months:"\u044f\u043d\u0432\u0430\u0440_\u0444\u0435\u0432\u0440\u0430\u043b_\u043c\u0430\u0440\u0442_\u0430\u043f\u0440\u0435\u043b_\u043c\u0430\u0439_\u0438\u044e\u043d_\u0438\u044e\u043b_\u0430\u0432\u0433\u0443\u0441\u0442_\u0441\u0435\u043d\u0442\u044f\u0431\u0440_\u043e\u043a\u0442\u044f\u0431\u0440_\u043d\u043e\u044f\u0431\u0440_\u0434\u0435\u043a\u0430\u0431\u0440".split("_"),monthsShort:"\u044f\u043d\u0432_\u0444\u0435\u0432_\u043c\u0430\u0440_\u0430\u043f\u0440_\u043c\u0430\u0439_\u0438\u044e\u043d_\u0438\u044e\u043b_\u0430\u0432\u0433_\u0441\u0435\u043d_\u043e\u043a\u0442_\u043d\u043e\u044f_\u0434\u0435\u043a".split("_"),weekdays:"\u042f\u043a\u0448\u0430\u043d\u0431\u0430_\u0414\u0443\u0448\u0430\u043d\u0431\u0430_\u0421\u0435\u0448\u0430\u043d\u0431\u0430_\u0427\u043e\u0440\u0448\u0430\u043d\u0431\u0430_\u041f\u0430\u0439\u0448\u0430\u043d\u0431\u0430_\u0416\u0443\u043c\u0430_\u0428\u0430\u043d\u0431\u0430".split("_"),weekdaysShort:"\u042f\u043a\u0448_\u0414\u0443\u0448_\u0421\u0435\u0448_\u0427\u043e\u0440_\u041f\u0430\u0439_\u0416\u0443\u043c_\u0428\u0430\u043d".split("_"),weekdaysMin:"\u042f\u043a_\u0414\u0443_\u0421\u0435_\u0427\u043e_\u041f\u0430_\u0416\u0443_\u0428\u0430".split("_"),longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"D MMMM YYYY, dddd HH:mm"},calendar:{sameDay:"[\u0411\u0443\u0433\u0443\u043d \u0441\u043e\u0430\u0442] LT [\u0434\u0430]",nextDay:"[\u042d\u0440\u0442\u0430\u0433\u0430] LT [\u0434\u0430]",nextWeek:"dddd [\u043a\u0443\u043d\u0438 \u0441\u043e\u0430\u0442] LT [\u0434\u0430]",lastDay:"[\u041a\u0435\u0447\u0430 \u0441\u043e\u0430\u0442] LT [\u0434\u0430]",lastWeek:"[\u0423\u0442\u0433\u0430\u043d] dddd [\u043a\u0443\u043d\u0438 \u0441\u043e\u0430\u0442] LT [\u0434\u0430]",sameElse:"L"},relativeTime:{future:"\u042f\u043a\u0438\u043d %s \u0438\u0447\u0438\u0434\u0430",past:"\u0411\u0438\u0440 \u043d\u0435\u0447\u0430 %s \u043e\u043b\u0434\u0438\u043d",s:"\u0444\u0443\u0440\u0441\u0430\u0442",ss:"%d \u0444\u0443\u0440\u0441\u0430\u0442",m:"\u0431\u0438\u0440 \u0434\u0430\u043a\u0438\u043a\u0430",mm:"%d \u0434\u0430\u043a\u0438\u043a\u0430",h:"\u0431\u0438\u0440 \u0441\u043e\u0430\u0442",hh:"%d \u0441\u043e\u0430\u0442",d:"\u0431\u0438\u0440 \u043a\u0443\u043d",dd:"%d \u043a\u0443\u043d",M:"\u0431\u0438\u0440 \u043e\u0439",MM:"%d \u043e\u0439",y:"\u0431\u0438\u0440 \u0439\u0438\u043b",yy:"%d \u0439\u0438\u043b"},week:{dow:1,doy:7}}),c.defineLocale("vi",{months:"th\xe1ng 1_th\xe1ng 2_th\xe1ng 3_th\xe1ng 4_th\xe1ng 5_th\xe1ng 6_th\xe1ng 7_th\xe1ng 8_th\xe1ng 9_th\xe1ng 10_th\xe1ng 11_th\xe1ng 12".split("_"),monthsShort:"Thg 01_Thg 02_Thg 03_Thg 04_Thg 05_Thg 06_Thg 07_Thg 08_Thg 09_Thg 10_Thg 11_Thg 12".split("_"),monthsParseExact:!0,weekdays:"ch\u1ee7 nh\u1eadt_th\u1ee9 hai_th\u1ee9 ba_th\u1ee9 t\u01b0_th\u1ee9 n\u0103m_th\u1ee9 s\xe1u_th\u1ee9 b\u1ea3y".split("_"),weekdaysShort:"CN_T2_T3_T4_T5_T6_T7".split("_"),weekdaysMin:"CN_T2_T3_T4_T5_T6_T7".split("_"),weekdaysParseExact:!0,meridiemParse:/sa|ch/i,isPM:function(e){return/^ch$/i.test(e)},meridiem:function(e,a,t){return e<12?t?"sa":"SA":t?"ch":"CH"},longDateFormat:{LT:"HH:mm",LTS:"HH:mm:ss",L:"DD/MM/YYYY",LL:"D MMMM [n\u0103m] YYYY",LLL:"D MMMM [n\u0103m] YYYY HH:mm",LLLL:"dddd, D MMMM [n\u0103m] YYYY HH:mm",l:"DD/M/YYYY",ll:"D MMM YYYY",lll:"D MMM YYYY HH:mm",llll:"ddd, D MMM YYYY HH:mm"},calendar:{sameDay:"[H\xf4m nay l\xfac] LT",nextDay:"[Ng\xe0y mai l\xfac] LT",nextWeek:"dddd [tu\u1ea7n t\u1edbi l\xfac] LT",lastDay:"[H\xf4m qua l\xfac] LT",lastWeek:"dddd [tu\u1ea7n tr\u01b0\u1edbc l\xfac] LT",sameElse:"L"},relativeTime:{future:"%s t\u1edbi",past:"%s tr\u01b0\u1edbc",s:"v\xe0i gi\xe2y",ss:"%d gi\xe2y",m:"m\u1ed9t ph\xfat",mm:"%d ph\xfat",h:"m\u1ed9t gi\u1edd",hh:"%d gi\u1edd",d:"m\u1ed9t ng\xe0y",dd:"%d ng\xe0y",w:"m\u1ed9t tu\u1ea7n",ww:"%d tu\u1ea7n",M:"m\u1ed9t th\xe1ng",MM:"%d th\xe1ng",y:"m\u1ed9t n\u0103m",yy:"%d n\u0103m"},dayOfMonthOrdinalParse:/\d{1,2}/,ordinal:function(e){return e},week:{dow:1,doy:4}}),c.defineLocale("x-pseudo",{months:"J~\xe1\xf1\xfa\xe1~r\xfd_F~\xe9br\xfa~\xe1r\xfd_~M\xe1rc~h_\xc1p~r\xedl_~M\xe1\xfd_~J\xfa\xf1\xe9~_J\xfal~\xfd_\xc1\xfa~g\xfast~_S\xe9p~t\xe9mb~\xe9r_\xd3~ct\xf3b~\xe9r_\xd1~\xf3v\xe9m~b\xe9r_~D\xe9c\xe9~mb\xe9r".split("_"),monthsShort:"J~\xe1\xf1_~F\xe9b_~M\xe1r_~\xc1pr_~M\xe1\xfd_~J\xfa\xf1_~J\xfal_~\xc1\xfag_~S\xe9p_~\xd3ct_~\xd1\xf3v_~D\xe9c".split("_"),monthsParseExact:!0,weekdays:"S~\xfa\xf1d\xe1~\xfd_M\xf3~\xf1d\xe1\xfd~_T\xfa\xe9~sd\xe1\xfd~_W\xe9d~\xf1\xe9sd~\xe1\xfd_T~h\xfars~d\xe1\xfd_~Fr\xedd~\xe1\xfd_S~\xe1t\xfar~d\xe1\xfd".split("_"),weekdaysShort:"S~\xfa\xf1_~M\xf3\xf1_~T\xfa\xe9_~W\xe9d_~Th\xfa_~Fr\xed_~S\xe1t".split("_"),weekdaysMin:"S~\xfa_M\xf3~_T\xfa_~W\xe9_T~h_Fr~_S\xe1".split("_"),weekdaysParseExact:!0,longDateFormat:{LT:"HH:mm",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY HH:mm",LLLL:"dddd, D MMMM YYYY HH:mm"},calendar:{sameDay:"[T~\xf3d\xe1~\xfd \xe1t] LT",nextDay:"[T~\xf3m\xf3~rr\xf3~w \xe1t] LT",nextWeek:"dddd [\xe1t] LT",lastDay:"[\xdd~\xe9st~\xe9rd\xe1~\xfd \xe1t] LT",lastWeek:"[L~\xe1st] dddd [\xe1t] LT",sameElse:"L"},relativeTime:{future:"\xed~\xf1 %s",past:"%s \xe1~g\xf3",s:"\xe1 ~f\xe9w ~s\xe9c\xf3~\xf1ds",ss:"%d s~\xe9c\xf3\xf1~ds",m:"\xe1 ~m\xed\xf1~\xfat\xe9",mm:"%d m~\xed\xf1\xfa~t\xe9s",h:"\xe1~\xf1 h\xf3~\xfar",hh:"%d h~\xf3\xfars",d:"\xe1 ~d\xe1\xfd",dd:"%d d~\xe1\xfds",M:"\xe1 ~m\xf3\xf1~th",MM:"%d m~\xf3\xf1t~hs",y:"\xe1 ~\xfd\xe9\xe1r",yy:"%d \xfd~\xe9\xe1rs"},dayOfMonthOrdinalParse:/\d{1,2}(th|st|nd|rd)/,ordinal:function(e){var a=e%10;return e+(1==~~(e%100/10)?"th":1==a?"st":2==a?"nd":3==a?"rd":"th")},week:{dow:1,doy:4}}),c.defineLocale("yo",{months:"S\u1eb9\u0301r\u1eb9\u0301_E\u0300re\u0300le\u0300_\u1eb8r\u1eb9\u0300na\u0300_I\u0300gbe\u0301_E\u0300bibi_O\u0300ku\u0300du_Ag\u1eb9mo_O\u0300gu\u0301n_Owewe_\u1ecc\u0300wa\u0300ra\u0300_Be\u0301lu\u0301_\u1ecc\u0300p\u1eb9\u0300\u0300".split("_"),monthsShort:"S\u1eb9\u0301r_E\u0300rl_\u1eb8rn_I\u0300gb_E\u0300bi_O\u0300ku\u0300_Ag\u1eb9_O\u0300gu\u0301_Owe_\u1ecc\u0300wa\u0300_Be\u0301l_\u1ecc\u0300p\u1eb9\u0300\u0300".split("_"),weekdays:"A\u0300i\u0300ku\u0301_Aje\u0301_I\u0300s\u1eb9\u0301gun_\u1eccj\u1ecd\u0301ru\u0301_\u1eccj\u1ecd\u0301b\u1ecd_\u1eb8ti\u0300_A\u0300ba\u0301m\u1eb9\u0301ta".split("_"),weekdaysShort:"A\u0300i\u0300k_Aje\u0301_I\u0300s\u1eb9\u0301_\u1eccjr_\u1eccjb_\u1eb8ti\u0300_A\u0300ba\u0301".split("_"),weekdaysMin:"A\u0300i\u0300_Aj_I\u0300s_\u1eccr_\u1eccb_\u1eb8t_A\u0300b".split("_"),longDateFormat:{LT:"h:mm A",LTS:"h:mm:ss A",L:"DD/MM/YYYY",LL:"D MMMM YYYY",LLL:"D MMMM YYYY h:mm A",LLLL:"dddd, D MMMM YYYY h:mm A"},calendar:{sameDay:"[O\u0300ni\u0300 ni] LT",nextDay:"[\u1ecc\u0300la ni] LT",nextWeek:"dddd [\u1eccs\u1eb9\u0300 to\u0301n'b\u1ecd] [ni] LT",lastDay:"[A\u0300na ni] LT",lastWeek:"dddd [\u1eccs\u1eb9\u0300 to\u0301l\u1ecd\u0301] [ni] LT",sameElse:"L"},relativeTime:{future:"ni\u0301 %s",past:"%s k\u1ecdja\u0301",s:"i\u0300s\u1eb9ju\u0301 aaya\u0301 die",ss:"aaya\u0301 %d",m:"i\u0300s\u1eb9ju\u0301 kan",mm:"i\u0300s\u1eb9ju\u0301 %d",h:"wa\u0301kati kan",hh:"wa\u0301kati %d",d:"\u1ecdj\u1ecd\u0301 kan",dd:"\u1ecdj\u1ecd\u0301 %d",M:"osu\u0300 kan",MM:"osu\u0300 %d",y:"\u1ecddu\u0301n kan",yy:"\u1ecddu\u0301n %d"},dayOfMonthOrdinalParse:/\u1ecdj\u1ecd\u0301\s\d{1,2}/,ordinal:"\u1ecdj\u1ecd\u0301 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+//# sourceMappingURL=moment-with-locales.min.js.map
\ No newline at end of file
diff --git a/backend/node_modules/moment/min/moment-with-locales.min.js.map b/backend/node_modules/moment/min/moment-with-locales.min.js.map
new file mode 100644
index 0000000..9319147
--- /dev/null
+++ b/backend/node_modules/moment/min/moment-with-locales.min.js.map
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index 0000000..8b80f20
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diff --git a/backend/node_modules/moment/min/moment.min.js.map b/backend/node_modules/moment/min/moment.min.js.map
new file mode 100644
index 0000000..4973b06
--- /dev/null
+++ b/backend/node_modules/moment/min/moment.min.js.map
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\ No newline at end of file
diff --git a/backend/node_modules/moment/moment.d.ts b/backend/node_modules/moment/moment.d.ts
new file mode 100644
index 0000000..2c5b3cf
--- /dev/null
+++ b/backend/node_modules/moment/moment.d.ts
@@ -0,0 +1,796 @@
+/**
+ * @param strict Strict parsing disables the deprecated fallback to the native Date constructor when
+ * parsing a string.
+ */
+declare function moment(inp?: moment.MomentInput, strict?: boolean): moment.Moment;
+/**
+ * @param strict Strict parsing requires that the format and input match exactly, including delimiters.
+ * Strict parsing is frequently the best parsing option. For more information about choosing strict vs
+ * forgiving parsing, see the [parsing guide](https://momentjs.com/guides/#/parsing/).
+ */
+declare function moment(inp?: moment.MomentInput, format?: moment.MomentFormatSpecification, strict?: boolean): moment.Moment;
+/**
+ * @param strict Strict parsing requires that the format and input match exactly, including delimiters.
+ * Strict parsing is frequently the best parsing option. For more information about choosing strict vs
+ * forgiving parsing, see the [parsing guide](https://momentjs.com/guides/#/parsing/).
+ */
+declare function moment(inp?: moment.MomentInput, format?: moment.MomentFormatSpecification, language?: string, strict?: boolean): moment.Moment;
+
+declare namespace moment {
+  type RelativeTimeKey = 's' | 'ss' | 'm' | 'mm' | 'h' | 'hh' | 'd' | 'dd' | 'w' | 'ww' | 'M' | 'MM' | 'y' | 'yy';
+  type CalendarKey = 'sameDay' | 'nextDay' | 'lastDay' | 'nextWeek' | 'lastWeek' | 'sameElse' | string;
+  type LongDateFormatKey = 'LTS' | 'LT' | 'L' | 'LL' | 'LLL' | 'LLLL' | 'lts' | 'lt' | 'l' | 'll' | 'lll' | 'llll';
+
+  interface Locale {
+    calendar(key?: CalendarKey, m?: Moment, now?: Moment): string;
+
+    longDateFormat(key: LongDateFormatKey): string;
+    invalidDate(): string;
+    ordinal(n: number): string;
+
+    preparse(inp: string): string;
+    postformat(inp: string): string;
+    relativeTime(n: number, withoutSuffix: boolean,
+                 key: RelativeTimeKey, isFuture: boolean): string;
+    pastFuture(diff: number, absRelTime: string): string;
+    set(config: Object): void;
+
+    months(): string[];
+    months(m: Moment, format?: string): string;
+    monthsShort(): string[];
+    monthsShort(m: Moment, format?: string): string;
+    monthsParse(monthName: string, format: string, strict: boolean): number;
+    monthsRegex(strict: boolean): RegExp;
+    monthsShortRegex(strict: boolean): RegExp;
+
+    week(m: Moment): number;
+    firstDayOfYear(): number;
+    firstDayOfWeek(): number;
+
+    weekdays(): string[];
+    weekdays(m: Moment, format?: string): string;
+    weekdaysMin(): string[];
+    weekdaysMin(m: Moment): string;
+    weekdaysShort(): string[];
+    weekdaysShort(m: Moment): string;
+    weekdaysParse(weekdayName: string, format: string, strict: boolean): number;
+    weekdaysRegex(strict: boolean): RegExp;
+    weekdaysShortRegex(strict: boolean): RegExp;
+    weekdaysMinRegex(strict: boolean): RegExp;
+
+    isPM(input: string): boolean;
+    meridiem(hour: number, minute: number, isLower: boolean): string;
+  }
+
+  interface StandaloneFormatSpec {
+    format: string[];
+    standalone: string[];
+    isFormat?: RegExp;
+  }
+
+  interface WeekSpec {
+    dow: number;
+    doy?: number;
+  }
+
+  type CalendarSpecVal = string | ((m?: MomentInput, now?: Moment) => string);
+  interface CalendarSpec {
+    sameDay?: CalendarSpecVal;
+    nextDay?: CalendarSpecVal;
+    lastDay?: CalendarSpecVal;
+    nextWeek?: CalendarSpecVal;
+    lastWeek?: CalendarSpecVal;
+    sameElse?: CalendarSpecVal;
+
+    // any additional properties might be used with moment.calendarFormat
+    [x: string]: CalendarSpecVal | void; // undefined
+  }
+
+  type RelativeTimeSpecVal = (
+    string |
+    ((n: number, withoutSuffix: boolean,
+      key: RelativeTimeKey, isFuture: boolean) => string)
+  );
+  type RelativeTimeFuturePastVal = string | ((relTime: string) => string);
+
+  interface RelativeTimeSpec {
+    future?: RelativeTimeFuturePastVal;
+    past?: RelativeTimeFuturePastVal;
+    s?: RelativeTimeSpecVal;
+    ss?: RelativeTimeSpecVal;
+    m?: RelativeTimeSpecVal;
+    mm?: RelativeTimeSpecVal;
+    h?: RelativeTimeSpecVal;
+    hh?: RelativeTimeSpecVal;
+    d?: RelativeTimeSpecVal;
+    dd?: RelativeTimeSpecVal;
+    w?: RelativeTimeSpecVal
+    ww?: RelativeTimeSpecVal;
+    M?: RelativeTimeSpecVal;
+    MM?: RelativeTimeSpecVal;
+    y?: RelativeTimeSpecVal;
+    yy?: RelativeTimeSpecVal;
+  }
+
+  interface LongDateFormatSpec {
+    LTS: string;
+    LT: string;
+    L: string;
+    LL: string;
+    LLL: string;
+    LLLL: string;
+
+    // lets forget for a sec that any upper/lower permutation will also work
+    lts?: string;
+    lt?: string;
+    l?: string;
+    ll?: string;
+    lll?: string;
+    llll?: string;
+  }
+
+  type MonthWeekdayFn = (momentToFormat: Moment, format?: string) => string;
+  type WeekdaySimpleFn = (momentToFormat: Moment) => string;
+  interface EraSpec {
+    since: string | number;
+    until: string | number;
+    offset: number;
+    name: string;
+    narrow: string;
+    abbr: string;
+  }
+
+  interface LocaleSpecification {
+    months?: string[] | StandaloneFormatSpec | MonthWeekdayFn;
+    monthsShort?: string[] | StandaloneFormatSpec | MonthWeekdayFn;
+
+    weekdays?: string[] | StandaloneFormatSpec | MonthWeekdayFn;
+    weekdaysShort?: string[] | StandaloneFormatSpec | WeekdaySimpleFn;
+    weekdaysMin?: string[] | StandaloneFormatSpec | WeekdaySimpleFn;
+
+    meridiemParse?: RegExp;
+    meridiem?: (hour: number, minute:number, isLower: boolean) => string;
+
+    isPM?: (input: string) => boolean;
+
+    longDateFormat?: LongDateFormatSpec;
+    calendar?: CalendarSpec;
+    relativeTime?: RelativeTimeSpec;
+    invalidDate?: string;
+    ordinal?: (n: number) => string;
+    ordinalParse?: RegExp;
+
+    week?: WeekSpec;
+    eras?: EraSpec[];
+
+    // Allow anything: in general any property that is passed as locale spec is
+    // put in the locale object so it can be used by locale functions
+    [x: string]: any;
+  }
+
+  interface MomentObjectOutput {
+    years: number;
+    /* One digit */
+    months: number;
+    /* Day of the month */
+    date: number;
+    hours: number;
+    minutes: number;
+    seconds: number;
+    milliseconds: number;
+  }
+
+  interface argThresholdOpts {
+    ss?: number;
+    s?: number;
+    m?: number;
+    h?: number;
+    d?: number;
+    w?: number | void;
+    M?: number;
+  }
+
+  interface Duration {
+    clone(): Duration;
+
+    humanize(argWithSuffix?: boolean, argThresholds?: argThresholdOpts): string;
+    
+    humanize(argThresholds?: argThresholdOpts): string;
+
+    abs(): Duration;
+
+    as(units: unitOfTime.Base): number;
+    get(units: unitOfTime.Base): number;
+
+    milliseconds(): number;
+    asMilliseconds(): number;
+
+    seconds(): number;
+    asSeconds(): number;
+
+    minutes(): number;
+    asMinutes(): number;
+
+    hours(): number;
+    asHours(): number;
+
+    days(): number;
+    asDays(): number;
+
+    weeks(): number;
+    asWeeks(): number;
+
+    months(): number;
+    asMonths(): number;
+
+    years(): number;
+    asYears(): number;
+
+    add(inp?: DurationInputArg1, unit?: DurationInputArg2): Duration;
+    subtract(inp?: DurationInputArg1, unit?: DurationInputArg2): Duration;
+
+    locale(): string;
+    locale(locale: LocaleSpecifier): Duration;
+    localeData(): Locale;
+
+    toISOString(): string;
+    toJSON(): string;
+
+    isValid(): boolean;
+
+    /**
+     * @deprecated since version 2.8.0
+     */
+    lang(locale: LocaleSpecifier): Moment;
+    /**
+     * @deprecated since version 2.8.0
+     */
+    lang(): Locale;
+    /**
+     * @deprecated
+     */
+    toIsoString(): string;
+  }
+
+  interface MomentRelativeTime {
+    future: any;
+    past: any;
+    s: any;
+    ss: any;
+    m: any;
+    mm: any;
+    h: any;
+    hh: any;
+    d: any;
+    dd: any;
+    M: any;
+    MM: any;
+    y: any;
+    yy: any;
+  }
+
+  interface MomentLongDateFormat {
+    L: string;
+    LL: string;
+    LLL: string;
+    LLLL: string;
+    LT: string;
+    LTS: string;
+
+    l?: string;
+    ll?: string;
+    lll?: string;
+    llll?: string;
+    lt?: string;
+    lts?: string;
+  }
+
+  interface MomentParsingFlags {
+    empty: boolean;
+    unusedTokens: string[];
+    unusedInput: string[];
+    overflow: number;
+    charsLeftOver: number;
+    nullInput: boolean;
+    invalidMonth: string | void; // null
+    invalidFormat: boolean;
+    userInvalidated: boolean;
+    iso: boolean;
+    parsedDateParts: any[];
+    meridiem: string | void; // null
+  }
+
+  interface MomentParsingFlagsOpt {
+    empty?: boolean;
+    unusedTokens?: string[];
+    unusedInput?: string[];
+    overflow?: number;
+    charsLeftOver?: number;
+    nullInput?: boolean;
+    invalidMonth?: string;
+    invalidFormat?: boolean;
+    userInvalidated?: boolean;
+    iso?: boolean;
+    parsedDateParts?: any[];
+    meridiem?: string;
+  }
+
+  interface MomentBuiltinFormat {
+    __momentBuiltinFormatBrand: any;
+  }
+
+  type MomentFormatSpecification = string | MomentBuiltinFormat | (string | MomentBuiltinFormat)[];
+
+  export namespace unitOfTime {
+    type Base = (
+      "year" | "years" | "y" |
+      "month" | "months" | "M" |
+      "week" | "weeks" | "w" |
+      "day" | "days" | "d" |
+      "hour" | "hours" | "h" |
+      "minute" | "minutes" | "m" |
+      "second" | "seconds" | "s" |
+      "millisecond" | "milliseconds" | "ms"
+    );
+
+    type _quarter = "quarter" | "quarters" | "Q";
+    type _isoWeek = "isoWeek" | "isoWeeks" | "W";
+    type _date = "date" | "dates" | "D";
+    type DurationConstructor = Base | _quarter | _isoWeek;
+
+    export type DurationAs = Base;
+
+    export type StartOf = Base | _quarter | _isoWeek | _date | void; // null
+
+    export type Diff = Base | _quarter;
+
+    export type MomentConstructor = Base | _date;
+
+    export type All = Base | _quarter | _isoWeek | _date |
+      "weekYear" | "weekYears" | "gg" |
+      "isoWeekYear" | "isoWeekYears" | "GG" |
+      "dayOfYear" | "dayOfYears" | "DDD" |
+      "weekday" | "weekdays" | "e" |
+      "isoWeekday" | "isoWeekdays" | "E";
+  }
+
+  type numberlike = number | string;
+  interface MomentInputObject {
+    years?: numberlike;
+    year?: numberlike;
+    y?: numberlike;
+
+    months?: numberlike;
+    month?: numberlike;
+    M?: numberlike;
+
+    days?: numberlike;
+    day?: numberlike;
+    d?: numberlike;
+
+    dates?: numberlike;
+    date?: numberlike;
+    D?: numberlike;
+
+    hours?: numberlike;
+    hour?: numberlike;
+    h?: numberlike;
+
+    minutes?: numberlike;
+    minute?: numberlike;
+    m?: numberlike;
+
+    seconds?: numberlike;
+    second?: numberlike;
+    s?: numberlike;
+
+    milliseconds?: numberlike;
+    millisecond?: numberlike;
+    ms?: numberlike;
+  }
+
+  interface DurationInputObject extends MomentInputObject {
+    quarters?: numberlike;
+    quarter?: numberlike;
+    Q?: numberlike;
+
+    weeks?: numberlike;
+    week?: numberlike;
+    w?: numberlike;
+  }
+
+  interface MomentSetObject extends MomentInputObject {
+    weekYears?: numberlike;
+    weekYear?: numberlike;
+    gg?: numberlike;
+
+    isoWeekYears?: numberlike;
+    isoWeekYear?: numberlike;
+    GG?: numberlike;
+
+    quarters?: numberlike;
+    quarter?: numberlike;
+    Q?: numberlike;
+
+    weeks?: numberlike;
+    week?: numberlike;
+    w?: numberlike;
+
+    isoWeeks?: numberlike;
+    isoWeek?: numberlike;
+    W?: numberlike;
+
+    dayOfYears?: numberlike;
+    dayOfYear?: numberlike;
+    DDD?: numberlike;
+
+    weekdays?: numberlike;
+    weekday?: numberlike;
+    e?: numberlike;
+
+    isoWeekdays?: numberlike;
+    isoWeekday?: numberlike;
+    E?: numberlike;
+  }
+
+  interface FromTo {
+    from: MomentInput;
+    to: MomentInput;
+  }
+
+  type MomentInput = Moment | Date | string | number | (number | string)[] | MomentInputObject | void; // null | undefined
+  type DurationInputArg1 = Duration | number | string | FromTo | DurationInputObject | void; // null | undefined
+  type DurationInputArg2 = unitOfTime.DurationConstructor;
+  type LocaleSpecifier = string | Moment | Duration | string[] | boolean;
+
+  interface MomentCreationData {
+    input: MomentInput;
+    format?: MomentFormatSpecification;
+    locale: Locale;
+    isUTC: boolean;
+    strict?: boolean;
+  }
+
+  interface Moment extends Object {
+    format(format?: string): string;
+
+    startOf(unitOfTime: unitOfTime.StartOf): Moment;
+    endOf(unitOfTime: unitOfTime.StartOf): Moment;
+
+    add(amount?: DurationInputArg1, unit?: DurationInputArg2): Moment;
+    /**
+     * @deprecated reverse syntax
+     */
+    add(unit: unitOfTime.DurationConstructor, amount: number|string): Moment;
+
+    subtract(amount?: DurationInputArg1, unit?: DurationInputArg2): Moment;
+    /**
+     * @deprecated reverse syntax
+     */
+    subtract(unit: unitOfTime.DurationConstructor, amount: number|string): Moment;
+
+    calendar(): string;
+    calendar(formats: CalendarSpec): string;
+    calendar(time: MomentInput, formats?: CalendarSpec): string;
+
+    clone(): Moment;
+
+    /**
+     * @return Unix timestamp in milliseconds
+     */
+    valueOf(): number;
+
+    // current date/time in local mode
+    local(keepLocalTime?: boolean): Moment;
+    isLocal(): boolean;
+
+    // current date/time in UTC mode
+    utc(keepLocalTime?: boolean): Moment;
+    isUTC(): boolean;
+    /**
+     * @deprecated use isUTC
+     */
+    isUtc(): boolean;
+
+    parseZone(): Moment;
+    isValid(): boolean;
+    invalidAt(): number;
+
+    hasAlignedHourOffset(other?: MomentInput): boolean;
+
+    creationData(): MomentCreationData;
+    parsingFlags(): MomentParsingFlags;
+
+    year(y: number): Moment;
+    year(): number;
+    /**
+     * @deprecated use year(y)
+     */
+    years(y: number): Moment;
+    /**
+     * @deprecated use year()
+     */
+    years(): number;
+    quarter(): number;
+    quarter(q: number): Moment;
+    quarters(): number;
+    quarters(q: number): Moment;
+    month(M: number|string): Moment;
+    month(): number;
+    /**
+     * @deprecated use month(M)
+     */
+    months(M: number|string): Moment;
+    /**
+     * @deprecated use month()
+     */
+    months(): number;
+    day(d: number|string): Moment;
+    day(): number;
+    days(d: number|string): Moment;
+    days(): number;
+    date(d: number): Moment;
+    date(): number;
+    /**
+     * @deprecated use date(d)
+     */
+    dates(d: number): Moment;
+    /**
+     * @deprecated use date()
+     */
+    dates(): number;
+    hour(h: number): Moment;
+    hour(): number;
+    hours(h: number): Moment;
+    hours(): number;
+    minute(m: number): Moment;
+    minute(): number;
+    minutes(m: number): Moment;
+    minutes(): number;
+    second(s: number): Moment;
+    second(): number;
+    seconds(s: number): Moment;
+    seconds(): number;
+    millisecond(ms: number): Moment;
+    millisecond(): number;
+    milliseconds(ms: number): Moment;
+    milliseconds(): number;
+    weekday(): number;
+    weekday(d: number): Moment;
+    isoWeekday(): number;
+    isoWeekday(d: number|string): Moment;
+    weekYear(): number;
+    weekYear(d: number): Moment;
+    isoWeekYear(): number;
+    isoWeekYear(d: number): Moment;
+    week(): number;
+    week(d: number): Moment;
+    weeks(): number;
+    weeks(d: number): Moment;
+    isoWeek(): number;
+    isoWeek(d: number): Moment;
+    isoWeeks(): number;
+    isoWeeks(d: number): Moment;
+    weeksInYear(): number;
+    weeksInWeekYear(): number;
+    isoWeeksInYear(): number;
+    isoWeeksInISOWeekYear(): number;
+    dayOfYear(): number;
+    dayOfYear(d: number): Moment;
+
+    from(inp: MomentInput, suffix?: boolean): string;
+    to(inp: MomentInput, suffix?: boolean): string;
+    fromNow(withoutSuffix?: boolean): string;
+    toNow(withoutPrefix?: boolean): string;
+
+    diff(b: MomentInput, unitOfTime?: unitOfTime.Diff, precise?: boolean): number;
+
+    toArray(): number[];
+    toDate(): Date;
+    toISOString(keepOffset?: boolean): string;
+    inspect(): string;
+    toJSON(): string;
+    unix(): number;
+
+    isLeapYear(): boolean;
+    /**
+     * @deprecated in favor of utcOffset
+     */
+    zone(): number;
+    zone(b: number|string): Moment;
+    utcOffset(): number;
+    utcOffset(b: number|string, keepLocalTime?: boolean): Moment;
+    isUtcOffset(): boolean;
+    daysInMonth(): number;
+    isDST(): boolean;
+
+    zoneAbbr(): string;
+    zoneName(): string;
+
+    isBefore(inp?: MomentInput, granularity?: unitOfTime.StartOf): boolean;
+    isAfter(inp?: MomentInput, granularity?: unitOfTime.StartOf): boolean;
+    isSame(inp?: MomentInput, granularity?: unitOfTime.StartOf): boolean;
+    isSameOrAfter(inp?: MomentInput, granularity?: unitOfTime.StartOf): boolean;
+    isSameOrBefore(inp?: MomentInput, granularity?: unitOfTime.StartOf): boolean;
+    isBetween(a: MomentInput, b: MomentInput, granularity?: unitOfTime.StartOf, inclusivity?: "()" | "[)" | "(]" | "[]"): boolean;
+
+    /**
+     * @deprecated as of 2.8.0, use locale
+     */
+    lang(language: LocaleSpecifier): Moment;
+    /**
+     * @deprecated as of 2.8.0, use locale
+     */
+    lang(): Locale;
+
+    locale(): string;
+    locale(locale: LocaleSpecifier): Moment;
+
+    localeData(): Locale;
+
+    /**
+     * @deprecated no reliable implementation
+     */
+    isDSTShifted(): boolean;
+
+    // NOTE(constructor): Same as moment constructor
+    /**
+     * @deprecated as of 2.7.0, use moment.min/max
+     */
+    max(inp?: MomentInput, format?: MomentFormatSpecification, strict?: boolean): Moment;
+    /**
+     * @deprecated as of 2.7.0, use moment.min/max
+     */
+    max(inp?: MomentInput, format?: MomentFormatSpecification, language?: string, strict?: boolean): Moment;
+
+    // NOTE(constructor): Same as moment constructor
+    /**
+     * @deprecated as of 2.7.0, use moment.min/max
+     */
+    min(inp?: MomentInput, format?: MomentFormatSpecification, strict?: boolean): Moment;
+    /**
+     * @deprecated as of 2.7.0, use moment.min/max
+     */
+    min(inp?: MomentInput, format?: MomentFormatSpecification, language?: string, strict?: boolean): Moment;
+
+    get(unit: unitOfTime.All): number;
+    set(unit: unitOfTime.All, value: number): Moment;
+    set(objectLiteral: MomentSetObject): Moment;
+
+    toObject(): MomentObjectOutput;
+  }
+
+  export var version: string;
+  export var fn: Moment;
+
+  // NOTE(constructor): Same as moment constructor
+  /**
+   * @param strict Strict parsing disables the deprecated fallback to the native Date constructor when
+   * parsing a string.
+   */
+  export function utc(inp?: MomentInput, strict?: boolean): Moment;
+  /**
+   * @param strict Strict parsing requires that the format and input match exactly, including delimiters.
+   * Strict parsing is frequently the best parsing option. For more information about choosing strict vs
+   * forgiving parsing, see the [parsing guide](https://momentjs.com/guides/#/parsing/).
+   */
+  export function utc(inp?: MomentInput, format?: MomentFormatSpecification, strict?: boolean): Moment;
+  /**
+   * @param strict Strict parsing requires that the format and input match exactly, including delimiters.
+   * Strict parsing is frequently the best parsing option. For more information about choosing strict vs
+   * forgiving parsing, see the [parsing guide](https://momentjs.com/guides/#/parsing/).
+   */
+  export function utc(inp?: MomentInput, format?: MomentFormatSpecification, language?: string, strict?: boolean): Moment;
+
+  export function unix(timestamp: number): Moment;
+
+  export function invalid(flags?: MomentParsingFlagsOpt): Moment;
+  export function isMoment(m: any): m is Moment;
+  export function isDate(m: any): m is Date;
+  export function isDuration(d: any): d is Duration;
+
+  /**
+   * @deprecated in 2.8.0
+   */
+  export function lang(language?: string): string;
+  /**
+   * @deprecated in 2.8.0
+   */
+  export function lang(language?: string, definition?: Locale): string;
+
+  export function locale(language?: string): string;
+  export function locale(language?: string[]): string;
+  export function locale(language?: string, definition?: LocaleSpecification | void): string; // null | undefined
+
+  export function localeData(key?: string | string[]): Locale;
+
+  export function duration(inp?: DurationInputArg1, unit?: DurationInputArg2): Duration;
+
+  // NOTE(constructor): Same as moment constructor
+  export function parseZone(inp?: MomentInput, format?: MomentFormatSpecification, strict?: boolean): Moment;
+  export function parseZone(inp?: MomentInput, format?: MomentFormatSpecification, language?: string, strict?: boolean): Moment;
+
+  export function months(): string[];
+  export function months(index: number): string;
+  export function months(format: string): string[];
+  export function months(format: string, index: number): string;
+  export function monthsShort(): string[];
+  export function monthsShort(index: number): string;
+  export function monthsShort(format: string): string[];
+  export function monthsShort(format: string, index: number): string;
+
+  export function weekdays(): string[];
+  export function weekdays(index: number): string;
+  export function weekdays(format: string): string[];
+  export function weekdays(format: string, index: number): string;
+  export function weekdays(localeSorted: boolean): string[];
+  export function weekdays(localeSorted: boolean, index: number): string;
+  export function weekdays(localeSorted: boolean, format: string): string[];
+  export function weekdays(localeSorted: boolean, format: string, index: number): string;
+  export function weekdaysShort(): string[];
+  export function weekdaysShort(index: number): string;
+  export function weekdaysShort(format: string): string[];
+  export function weekdaysShort(format: string, index: number): string;
+  export function weekdaysShort(localeSorted: boolean): string[];
+  export function weekdaysShort(localeSorted: boolean, index: number): string;
+  export function weekdaysShort(localeSorted: boolean, format: string): string[];
+  export function weekdaysShort(localeSorted: boolean, format: string, index: number): string;
+  export function weekdaysMin(): string[];
+  export function weekdaysMin(index: number): string;
+  export function weekdaysMin(format: string): string[];
+  export function weekdaysMin(format: string, index: number): string;
+  export function weekdaysMin(localeSorted: boolean): string[];
+  export function weekdaysMin(localeSorted: boolean, index: number): string;
+  export function weekdaysMin(localeSorted: boolean, format: string): string[];
+  export function weekdaysMin(localeSorted: boolean, format: string, index: number): string;
+
+  export function min(moments: Moment[]): Moment;
+  export function min(...moments: Moment[]): Moment;
+  export function max(moments: Moment[]): Moment;
+  export function max(...moments: Moment[]): Moment;
+
+  /**
+   * Returns unix time in milliseconds. Overwrite for profit.
+   */
+  export function now(): number;
+
+  export function defineLocale(language: string, localeSpec: LocaleSpecification | void): Locale; // null
+  export function updateLocale(language: string, localeSpec: LocaleSpecification | void): Locale; // null
+
+  export function locales(): string[];
+
+  export function normalizeUnits(unit: unitOfTime.All): string;
+  export function relativeTimeThreshold(threshold: string): number | boolean;
+  export function relativeTimeThreshold(threshold: string, limit: number): boolean;
+  export function relativeTimeRounding(fn: (num: number) => number): boolean;
+  export function relativeTimeRounding(): (num: number) => number;
+  export function calendarFormat(m: Moment, now: Moment): string;
+
+  export function parseTwoDigitYear(input: string): number;
+
+  /**
+   * Constant used to enable explicit ISO_8601 format parsing.
+   */
+  export var ISO_8601: MomentBuiltinFormat;
+  export var RFC_2822: MomentBuiltinFormat;
+
+  export var defaultFormat: string;
+  export var defaultFormatUtc: string;
+  export var suppressDeprecationWarnings: boolean;
+  export var deprecationHandler: ((name: string | void, msg: string) => void) | void;
+
+  export var HTML5_FMT: {
+    DATETIME_LOCAL: string,
+    DATETIME_LOCAL_SECONDS: string,
+    DATETIME_LOCAL_MS: string,
+    DATE: string,
+    TIME: string,
+    TIME_SECONDS: string,
+    TIME_MS: string,
+    WEEK: string,
+    MONTH: string
+  };
+
+}
+
+export = moment;
diff --git a/backend/node_modules/moment/moment.js b/backend/node_modules/moment/moment.js
new file mode 100644
index 0000000..480b9fb
--- /dev/null
+++ b/backend/node_modules/moment/moment.js
@@ -0,0 +1,5688 @@
+//! moment.js
+//! version : 2.30.1
+//! authors : Tim Wood, Iskren Chernev, Moment.js contributors
+//! license : MIT
+//! momentjs.com
+
+;(function (global, factory) {
+    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+    typeof define === 'function' && define.amd ? define(factory) :
+    global.moment = factory()
+}(this, (function () { 'use strict';
+
+    var hookCallback;
+
+    function hooks() {
+        return hookCallback.apply(null, arguments);
+    }
+
+    // This is done to register the method called with moment()
+    // without creating circular dependencies.
+    function setHookCallback(callback) {
+        hookCallback = callback;
+    }
+
+    function isArray(input) {
+        return (
+            input instanceof Array ||
+            Object.prototype.toString.call(input) === '[object Array]'
+        );
+    }
+
+    function isObject(input) {
+        // IE8 will treat undefined and null as object if it wasn't for
+        // input != null
+        return (
+            input != null &&
+            Object.prototype.toString.call(input) === '[object Object]'
+        );
+    }
+
+    function hasOwnProp(a, b) {
+        return Object.prototype.hasOwnProperty.call(a, b);
+    }
+
+    function isObjectEmpty(obj) {
+        if (Object.getOwnPropertyNames) {
+            return Object.getOwnPropertyNames(obj).length === 0;
+        } else {
+            var k;
+            for (k in obj) {
+                if (hasOwnProp(obj, k)) {
+                    return false;
+                }
+            }
+            return true;
+        }
+    }
+
+    function isUndefined(input) {
+        return input === void 0;
+    }
+
+    function isNumber(input) {
+        return (
+            typeof input === 'number' ||
+            Object.prototype.toString.call(input) === '[object Number]'
+        );
+    }
+
+    function isDate(input) {
+        return (
+            input instanceof Date ||
+            Object.prototype.toString.call(input) === '[object Date]'
+        );
+    }
+
+    function map(arr, fn) {
+        var res = [],
+            i,
+            arrLen = arr.length;
+        for (i = 0; i < arrLen; ++i) {
+            res.push(fn(arr[i], i));
+        }
+        return res;
+    }
+
+    function extend(a, b) {
+        for (var i in b) {
+            if (hasOwnProp(b, i)) {
+                a[i] = b[i];
+            }
+        }
+
+        if (hasOwnProp(b, 'toString')) {
+            a.toString = b.toString;
+        }
+
+        if (hasOwnProp(b, 'valueOf')) {
+            a.valueOf = b.valueOf;
+        }
+
+        return a;
+    }
+
+    function createUTC(input, format, locale, strict) {
+        return createLocalOrUTC(input, format, locale, strict, true).utc();
+    }
+
+    function defaultParsingFlags() {
+        // We need to deep clone this object.
+        return {
+            empty: false,
+            unusedTokens: [],
+            unusedInput: [],
+            overflow: -2,
+            charsLeftOver: 0,
+            nullInput: false,
+            invalidEra: null,
+            invalidMonth: null,
+            invalidFormat: false,
+            userInvalidated: false,
+            iso: false,
+            parsedDateParts: [],
+            era: null,
+            meridiem: null,
+            rfc2822: false,
+            weekdayMismatch: false,
+        };
+    }
+
+    function getParsingFlags(m) {
+        if (m._pf == null) {
+            m._pf = defaultParsingFlags();
+        }
+        return m._pf;
+    }
+
+    var some;
+    if (Array.prototype.some) {
+        some = Array.prototype.some;
+    } else {
+        some = function (fun) {
+            var t = Object(this),
+                len = t.length >>> 0,
+                i;
+
+            for (i = 0; i < len; i++) {
+                if (i in t && fun.call(this, t[i], i, t)) {
+                    return true;
+                }
+            }
+
+            return false;
+        };
+    }
+
+    function isValid(m) {
+        var flags = null,
+            parsedParts = false,
+            isNowValid = m._d && !isNaN(m._d.getTime());
+        if (isNowValid) {
+            flags = getParsingFlags(m);
+            parsedParts = some.call(flags.parsedDateParts, function (i) {
+                return i != null;
+            });
+            isNowValid =
+                flags.overflow < 0 &&
+                !flags.empty &&
+                !flags.invalidEra &&
+                !flags.invalidMonth &&
+                !flags.invalidWeekday &&
+                !flags.weekdayMismatch &&
+                !flags.nullInput &&
+                !flags.invalidFormat &&
+                !flags.userInvalidated &&
+                (!flags.meridiem || (flags.meridiem && parsedParts));
+            if (m._strict) {
+                isNowValid =
+                    isNowValid &&
+                    flags.charsLeftOver === 0 &&
+                    flags.unusedTokens.length === 0 &&
+                    flags.bigHour === undefined;
+            }
+        }
+        if (Object.isFrozen == null || !Object.isFrozen(m)) {
+            m._isValid = isNowValid;
+        } else {
+            return isNowValid;
+        }
+        return m._isValid;
+    }
+
+    function createInvalid(flags) {
+        var m = createUTC(NaN);
+        if (flags != null) {
+            extend(getParsingFlags(m), flags);
+        } else {
+            getParsingFlags(m).userInvalidated = true;
+        }
+
+        return m;
+    }
+
+    // Plugins that add properties should also add the key here (null value),
+    // so we can properly clone ourselves.
+    var momentProperties = (hooks.momentProperties = []),
+        updateInProgress = false;
+
+    function copyConfig(to, from) {
+        var i,
+            prop,
+            val,
+            momentPropertiesLen = momentProperties.length;
+
+        if (!isUndefined(from._isAMomentObject)) {
+            to._isAMomentObject = from._isAMomentObject;
+        }
+        if (!isUndefined(from._i)) {
+            to._i = from._i;
+        }
+        if (!isUndefined(from._f)) {
+            to._f = from._f;
+        }
+        if (!isUndefined(from._l)) {
+            to._l = from._l;
+        }
+        if (!isUndefined(from._strict)) {
+            to._strict = from._strict;
+        }
+        if (!isUndefined(from._tzm)) {
+            to._tzm = from._tzm;
+        }
+        if (!isUndefined(from._isUTC)) {
+            to._isUTC = from._isUTC;
+        }
+        if (!isUndefined(from._offset)) {
+            to._offset = from._offset;
+        }
+        if (!isUndefined(from._pf)) {
+            to._pf = getParsingFlags(from);
+        }
+        if (!isUndefined(from._locale)) {
+            to._locale = from._locale;
+        }
+
+        if (momentPropertiesLen > 0) {
+            for (i = 0; i < momentPropertiesLen; i++) {
+                prop = momentProperties[i];
+                val = from[prop];
+                if (!isUndefined(val)) {
+                    to[prop] = val;
+                }
+            }
+        }
+
+        return to;
+    }
+
+    // Moment prototype object
+    function Moment(config) {
+        copyConfig(this, config);
+        this._d = new Date(config._d != null ? config._d.getTime() : NaN);
+        if (!this.isValid()) {
+            this._d = new Date(NaN);
+        }
+        // Prevent infinite loop in case updateOffset creates new moment
+        // objects.
+        if (updateInProgress === false) {
+            updateInProgress = true;
+            hooks.updateOffset(this);
+            updateInProgress = false;
+        }
+    }
+
+    function isMoment(obj) {
+        return (
+            obj instanceof Moment || (obj != null && obj._isAMomentObject != null)
+        );
+    }
+
+    function warn(msg) {
+        if (
+            hooks.suppressDeprecationWarnings === false &&
+            typeof console !== 'undefined' &&
+            console.warn
+        ) {
+            console.warn('Deprecation warning: ' + msg);
+        }
+    }
+
+    function deprecate(msg, fn) {
+        var firstTime = true;
+
+        return extend(function () {
+            if (hooks.deprecationHandler != null) {
+                hooks.deprecationHandler(null, msg);
+            }
+            if (firstTime) {
+                var args = [],
+                    arg,
+                    i,
+                    key,
+                    argLen = arguments.length;
+                for (i = 0; i < argLen; i++) {
+                    arg = '';
+                    if (typeof arguments[i] === 'object') {
+                        arg += '\n[' + i + '] ';
+                        for (key in arguments[0]) {
+                            if (hasOwnProp(arguments[0], key)) {
+                                arg += key + ': ' + arguments[0][key] + ', ';
+                            }
+                        }
+                        arg = arg.slice(0, -2); // Remove trailing comma and space
+                    } else {
+                        arg = arguments[i];
+                    }
+                    args.push(arg);
+                }
+                warn(
+                    msg +
+                        '\nArguments: ' +
+                        Array.prototype.slice.call(args).join('') +
+                        '\n' +
+                        new Error().stack
+                );
+                firstTime = false;
+            }
+            return fn.apply(this, arguments);
+        }, fn);
+    }
+
+    var deprecations = {};
+
+    function deprecateSimple(name, msg) {
+        if (hooks.deprecationHandler != null) {
+            hooks.deprecationHandler(name, msg);
+        }
+        if (!deprecations[name]) {
+            warn(msg);
+            deprecations[name] = true;
+        }
+    }
+
+    hooks.suppressDeprecationWarnings = false;
+    hooks.deprecationHandler = null;
+
+    function isFunction(input) {
+        return (
+            (typeof Function !== 'undefined' && input instanceof Function) ||
+            Object.prototype.toString.call(input) === '[object Function]'
+        );
+    }
+
+    function set(config) {
+        var prop, i;
+        for (i in config) {
+            if (hasOwnProp(config, i)) {
+                prop = config[i];
+                if (isFunction(prop)) {
+                    this[i] = prop;
+                } else {
+                    this['_' + i] = prop;
+                }
+            }
+        }
+        this._config = config;
+        // Lenient ordinal parsing accepts just a number in addition to
+        // number + (possibly) stuff coming from _dayOfMonthOrdinalParse.
+        // TODO: Remove "ordinalParse" fallback in next major release.
+        this._dayOfMonthOrdinalParseLenient = new RegExp(
+            (this._dayOfMonthOrdinalParse.source || this._ordinalParse.source) +
+                '|' +
+                /\d{1,2}/.source
+        );
+    }
+
+    function mergeConfigs(parentConfig, childConfig) {
+        var res = extend({}, parentConfig),
+            prop;
+        for (prop in childConfig) {
+            if (hasOwnProp(childConfig, prop)) {
+                if (isObject(parentConfig[prop]) && isObject(childConfig[prop])) {
+                    res[prop] = {};
+                    extend(res[prop], parentConfig[prop]);
+                    extend(res[prop], childConfig[prop]);
+                } else if (childConfig[prop] != null) {
+                    res[prop] = childConfig[prop];
+                } else {
+                    delete res[prop];
+                }
+            }
+        }
+        for (prop in parentConfig) {
+            if (
+                hasOwnProp(parentConfig, prop) &&
+                !hasOwnProp(childConfig, prop) &&
+                isObject(parentConfig[prop])
+            ) {
+                // make sure changes to properties don't modify parent config
+                res[prop] = extend({}, res[prop]);
+            }
+        }
+        return res;
+    }
+
+    function Locale(config) {
+        if (config != null) {
+            this.set(config);
+        }
+    }
+
+    var keys;
+
+    if (Object.keys) {
+        keys = Object.keys;
+    } else {
+        keys = function (obj) {
+            var i,
+                res = [];
+            for (i in obj) {
+                if (hasOwnProp(obj, i)) {
+                    res.push(i);
+                }
+            }
+            return res;
+        };
+    }
+
+    var defaultCalendar = {
+        sameDay: '[Today at] LT',
+        nextDay: '[Tomorrow at] LT',
+        nextWeek: 'dddd [at] LT',
+        lastDay: '[Yesterday at] LT',
+        lastWeek: '[Last] dddd [at] LT',
+        sameElse: 'L',
+    };
+
+    function calendar(key, mom, now) {
+        var output = this._calendar[key] || this._calendar['sameElse'];
+        return isFunction(output) ? output.call(mom, now) : output;
+    }
+
+    function zeroFill(number, targetLength, forceSign) {
+        var absNumber = '' + Math.abs(number),
+            zerosToFill = targetLength - absNumber.length,
+            sign = number >= 0;
+        return (
+            (sign ? (forceSign ? '+' : '') : '-') +
+            Math.pow(10, Math.max(0, zerosToFill)).toString().substr(1) +
+            absNumber
+        );
+    }
+
+    var formattingTokens =
+            /(\[[^\[]*\])|(\\)?([Hh]mm(ss)?|Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Qo?|N{1,5}|YYYYYY|YYYYY|YYYY|YY|y{2,4}|yo?|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|kk?|mm?|ss?|S{1,9}|x|X|zz?|ZZ?|.)/g,
+        localFormattingTokens = /(\[[^\[]*\])|(\\)?(LTS|LT|LL?L?L?|l{1,4})/g,
+        formatFunctions = {},
+        formatTokenFunctions = {};
+
+    // token:    'M'
+    // padded:   ['MM', 2]
+    // ordinal:  'Mo'
+    // callback: function () { this.month() + 1 }
+    function addFormatToken(token, padded, ordinal, callback) {
+        var func = callback;
+        if (typeof callback === 'string') {
+            func = function () {
+                return this[callback]();
+            };
+        }
+        if (token) {
+            formatTokenFunctions[token] = func;
+        }
+        if (padded) {
+            formatTokenFunctions[padded[0]] = function () {
+                return zeroFill(func.apply(this, arguments), padded[1], padded[2]);
+            };
+        }
+        if (ordinal) {
+            formatTokenFunctions[ordinal] = function () {
+                return this.localeData().ordinal(
+                    func.apply(this, arguments),
+                    token
+                );
+            };
+        }
+    }
+
+    function removeFormattingTokens(input) {
+        if (input.match(/\[[\s\S]/)) {
+            return input.replace(/^\[|\]$/g, '');
+        }
+        return input.replace(/\\/g, '');
+    }
+
+    function makeFormatFunction(format) {
+        var array = format.match(formattingTokens),
+            i,
+            length;
+
+        for (i = 0, length = array.length; i < length; i++) {
+            if (formatTokenFunctions[array[i]]) {
+                array[i] = formatTokenFunctions[array[i]];
+            } else {
+                array[i] = removeFormattingTokens(array[i]);
+            }
+        }
+
+        return function (mom) {
+            var output = '',
+                i;
+            for (i = 0; i < length; i++) {
+                output += isFunction(array[i])
+                    ? array[i].call(mom, format)
+                    : array[i];
+            }
+            return output;
+        };
+    }
+
+    // format date using native date object
+    function formatMoment(m, format) {
+        if (!m.isValid()) {
+            return m.localeData().invalidDate();
+        }
+
+        format = expandFormat(format, m.localeData());
+        formatFunctions[format] =
+            formatFunctions[format] || makeFormatFunction(format);
+
+        return formatFunctions[format](m);
+    }
+
+    function expandFormat(format, locale) {
+        var i = 5;
+
+        function replaceLongDateFormatTokens(input) {
+            return locale.longDateFormat(input) || input;
+        }
+
+        localFormattingTokens.lastIndex = 0;
+        while (i >= 0 && localFormattingTokens.test(format)) {
+            format = format.replace(
+                localFormattingTokens,
+                replaceLongDateFormatTokens
+            );
+            localFormattingTokens.lastIndex = 0;
+            i -= 1;
+        }
+
+        return format;
+    }
+
+    var defaultLongDateFormat = {
+        LTS: 'h:mm:ss A',
+        LT: 'h:mm A',
+        L: 'MM/DD/YYYY',
+        LL: 'MMMM D, YYYY',
+        LLL: 'MMMM D, YYYY h:mm A',
+        LLLL: 'dddd, MMMM D, YYYY h:mm A',
+    };
+
+    function longDateFormat(key) {
+        var format = this._longDateFormat[key],
+            formatUpper = this._longDateFormat[key.toUpperCase()];
+
+        if (format || !formatUpper) {
+            return format;
+        }
+
+        this._longDateFormat[key] = formatUpper
+            .match(formattingTokens)
+            .map(function (tok) {
+                if (
+                    tok === 'MMMM' ||
+                    tok === 'MM' ||
+                    tok === 'DD' ||
+                    tok === 'dddd'
+                ) {
+                    return tok.slice(1);
+                }
+                return tok;
+            })
+            .join('');
+
+        return this._longDateFormat[key];
+    }
+
+    var defaultInvalidDate = 'Invalid date';
+
+    function invalidDate() {
+        return this._invalidDate;
+    }
+
+    var defaultOrdinal = '%d',
+        defaultDayOfMonthOrdinalParse = /\d{1,2}/;
+
+    function ordinal(number) {
+        return this._ordinal.replace('%d', number);
+    }
+
+    var defaultRelativeTime = {
+        future: 'in %s',
+        past: '%s ago',
+        s: 'a few seconds',
+        ss: '%d seconds',
+        m: 'a minute',
+        mm: '%d minutes',
+        h: 'an hour',
+        hh: '%d hours',
+        d: 'a day',
+        dd: '%d days',
+        w: 'a week',
+        ww: '%d weeks',
+        M: 'a month',
+        MM: '%d months',
+        y: 'a year',
+        yy: '%d years',
+    };
+
+    function relativeTime(number, withoutSuffix, string, isFuture) {
+        var output = this._relativeTime[string];
+        return isFunction(output)
+            ? output(number, withoutSuffix, string, isFuture)
+            : output.replace(/%d/i, number);
+    }
+
+    function pastFuture(diff, output) {
+        var format = this._relativeTime[diff > 0 ? 'future' : 'past'];
+        return isFunction(format) ? format(output) : format.replace(/%s/i, output);
+    }
+
+    var aliases = {
+        D: 'date',
+        dates: 'date',
+        date: 'date',
+        d: 'day',
+        days: 'day',
+        day: 'day',
+        e: 'weekday',
+        weekdays: 'weekday',
+        weekday: 'weekday',
+        E: 'isoWeekday',
+        isoweekdays: 'isoWeekday',
+        isoweekday: 'isoWeekday',
+        DDD: 'dayOfYear',
+        dayofyears: 'dayOfYear',
+        dayofyear: 'dayOfYear',
+        h: 'hour',
+        hours: 'hour',
+        hour: 'hour',
+        ms: 'millisecond',
+        milliseconds: 'millisecond',
+        millisecond: 'millisecond',
+        m: 'minute',
+        minutes: 'minute',
+        minute: 'minute',
+        M: 'month',
+        months: 'month',
+        month: 'month',
+        Q: 'quarter',
+        quarters: 'quarter',
+        quarter: 'quarter',
+        s: 'second',
+        seconds: 'second',
+        second: 'second',
+        gg: 'weekYear',
+        weekyears: 'weekYear',
+        weekyear: 'weekYear',
+        GG: 'isoWeekYear',
+        isoweekyears: 'isoWeekYear',
+        isoweekyear: 'isoWeekYear',
+        w: 'week',
+        weeks: 'week',
+        week: 'week',
+        W: 'isoWeek',
+        isoweeks: 'isoWeek',
+        isoweek: 'isoWeek',
+        y: 'year',
+        years: 'year',
+        year: 'year',
+    };
+
+    function normalizeUnits(units) {
+        return typeof units === 'string'
+            ? aliases[units] || aliases[units.toLowerCase()]
+            : undefined;
+    }
+
+    function normalizeObjectUnits(inputObject) {
+        var normalizedInput = {},
+            normalizedProp,
+            prop;
+
+        for (prop in inputObject) {
+            if (hasOwnProp(inputObject, prop)) {
+                normalizedProp = normalizeUnits(prop);
+                if (normalizedProp) {
+                    normalizedInput[normalizedProp] = inputObject[prop];
+                }
+            }
+        }
+
+        return normalizedInput;
+    }
+
+    var priorities = {
+        date: 9,
+        day: 11,
+        weekday: 11,
+        isoWeekday: 11,
+        dayOfYear: 4,
+        hour: 13,
+        millisecond: 16,
+        minute: 14,
+        month: 8,
+        quarter: 7,
+        second: 15,
+        weekYear: 1,
+        isoWeekYear: 1,
+        week: 5,
+        isoWeek: 5,
+        year: 1,
+    };
+
+    function getPrioritizedUnits(unitsObj) {
+        var units = [],
+            u;
+        for (u in unitsObj) {
+            if (hasOwnProp(unitsObj, u)) {
+                units.push({ unit: u, priority: priorities[u] });
+            }
+        }
+        units.sort(function (a, b) {
+            return a.priority - b.priority;
+        });
+        return units;
+    }
+
+    var match1 = /\d/, //       0 - 9
+        match2 = /\d\d/, //      00 - 99
+        match3 = /\d{3}/, //     000 - 999
+        match4 = /\d{4}/, //    0000 - 9999
+        match6 = /[+-]?\d{6}/, // -999999 - 999999
+        match1to2 = /\d\d?/, //       0 - 99
+        match3to4 = /\d\d\d\d?/, //     999 - 9999
+        match5to6 = /\d\d\d\d\d\d?/, //   99999 - 999999
+        match1to3 = /\d{1,3}/, //       0 - 999
+        match1to4 = /\d{1,4}/, //       0 - 9999
+        match1to6 = /[+-]?\d{1,6}/, // -999999 - 999999
+        matchUnsigned = /\d+/, //       0 - inf
+        matchSigned = /[+-]?\d+/, //    -inf - inf
+        matchOffset = /Z|[+-]\d\d:?\d\d/gi, // +00:00 -00:00 +0000 -0000 or Z
+        matchShortOffset = /Z|[+-]\d\d(?::?\d\d)?/gi, // +00 -00 +00:00 -00:00 +0000 -0000 or Z
+        matchTimestamp = /[+-]?\d+(\.\d{1,3})?/, // 123456789 123456789.123
+        // any word (or two) characters or numbers including two/three word month in arabic.
+        // includes scottish gaelic two word and hyphenated months
+        matchWord =
+            /[0-9]{0,256}['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFF07\uFF10-\uFFEF]{1,256}|[\u0600-\u06FF\/]{1,256}(\s*?[\u0600-\u06FF]{1,256}){1,2}/i,
+        match1to2NoLeadingZero = /^[1-9]\d?/, //         1-99
+        match1to2HasZero = /^([1-9]\d|\d)/, //           0-99
+        regexes;
+
+    regexes = {};
+
+    function addRegexToken(token, regex, strictRegex) {
+        regexes[token] = isFunction(regex)
+            ? regex
+            : function (isStrict, localeData) {
+                  return isStrict && strictRegex ? strictRegex : regex;
+              };
+    }
+
+    function getParseRegexForToken(token, config) {
+        if (!hasOwnProp(regexes, token)) {
+            return new RegExp(unescapeFormat(token));
+        }
+
+        return regexes[token](config._strict, config._locale);
+    }
+
+    // Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript
+    function unescapeFormat(s) {
+        return regexEscape(
+            s
+                .replace('\\', '')
+                .replace(
+                    /\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g,
+                    function (matched, p1, p2, p3, p4) {
+                        return p1 || p2 || p3 || p4;
+                    }
+                )
+        );
+    }
+
+    function regexEscape(s) {
+        return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
+    }
+
+    function absFloor(number) {
+        if (number < 0) {
+            // -0 -> 0
+            return Math.ceil(number) || 0;
+        } else {
+            return Math.floor(number);
+        }
+    }
+
+    function toInt(argumentForCoercion) {
+        var coercedNumber = +argumentForCoercion,
+            value = 0;
+
+        if (coercedNumber !== 0 && isFinite(coercedNumber)) {
+            value = absFloor(coercedNumber);
+        }
+
+        return value;
+    }
+
+    var tokens = {};
+
+    function addParseToken(token, callback) {
+        var i,
+            func = callback,
+            tokenLen;
+        if (typeof token === 'string') {
+            token = [token];
+        }
+        if (isNumber(callback)) {
+            func = function (input, array) {
+                array[callback] = toInt(input);
+            };
+        }
+        tokenLen = token.length;
+        for (i = 0; i < tokenLen; i++) {
+            tokens[token[i]] = func;
+        }
+    }
+
+    function addWeekParseToken(token, callback) {
+        addParseToken(token, function (input, array, config, token) {
+            config._w = config._w || {};
+            callback(input, config._w, config, token);
+        });
+    }
+
+    function addTimeToArrayFromToken(token, input, config) {
+        if (input != null && hasOwnProp(tokens, token)) {
+            tokens[token](input, config._a, config, token);
+        }
+    }
+
+    function isLeapYear(year) {
+        return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
+    }
+
+    var YEAR = 0,
+        MONTH = 1,
+        DATE = 2,
+        HOUR = 3,
+        MINUTE = 4,
+        SECOND = 5,
+        MILLISECOND = 6,
+        WEEK = 7,
+        WEEKDAY = 8;
+
+    // FORMATTING
+
+    addFormatToken('Y', 0, 0, function () {
+        var y = this.year();
+        return y <= 9999 ? zeroFill(y, 4) : '+' + y;
+    });
+
+    addFormatToken(0, ['YY', 2], 0, function () {
+        return this.year() % 100;
+    });
+
+    addFormatToken(0, ['YYYY', 4], 0, 'year');
+    addFormatToken(0, ['YYYYY', 5], 0, 'year');
+    addFormatToken(0, ['YYYYYY', 6, true], 0, 'year');
+
+    // PARSING
+
+    addRegexToken('Y', matchSigned);
+    addRegexToken('YY', match1to2, match2);
+    addRegexToken('YYYY', match1to4, match4);
+    addRegexToken('YYYYY', match1to6, match6);
+    addRegexToken('YYYYYY', match1to6, match6);
+
+    addParseToken(['YYYYY', 'YYYYYY'], YEAR);
+    addParseToken('YYYY', function (input, array) {
+        array[YEAR] =
+            input.length === 2 ? hooks.parseTwoDigitYear(input) : toInt(input);
+    });
+    addParseToken('YY', function (input, array) {
+        array[YEAR] = hooks.parseTwoDigitYear(input);
+    });
+    addParseToken('Y', function (input, array) {
+        array[YEAR] = parseInt(input, 10);
+    });
+
+    // HELPERS
+
+    function daysInYear(year) {
+        return isLeapYear(year) ? 366 : 365;
+    }
+
+    // HOOKS
+
+    hooks.parseTwoDigitYear = function (input) {
+        return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
+    };
+
+    // MOMENTS
+
+    var getSetYear = makeGetSet('FullYear', true);
+
+    function getIsLeapYear() {
+        return isLeapYear(this.year());
+    }
+
+    function makeGetSet(unit, keepTime) {
+        return function (value) {
+            if (value != null) {
+                set$1(this, unit, value);
+                hooks.updateOffset(this, keepTime);
+                return this;
+            } else {
+                return get(this, unit);
+            }
+        };
+    }
+
+    function get(mom, unit) {
+        if (!mom.isValid()) {
+            return NaN;
+        }
+
+        var d = mom._d,
+            isUTC = mom._isUTC;
+
+        switch (unit) {
+            case 'Milliseconds':
+                return isUTC ? d.getUTCMilliseconds() : d.getMilliseconds();
+            case 'Seconds':
+                return isUTC ? d.getUTCSeconds() : d.getSeconds();
+            case 'Minutes':
+                return isUTC ? d.getUTCMinutes() : d.getMinutes();
+            case 'Hours':
+                return isUTC ? d.getUTCHours() : d.getHours();
+            case 'Date':
+                return isUTC ? d.getUTCDate() : d.getDate();
+            case 'Day':
+                return isUTC ? d.getUTCDay() : d.getDay();
+            case 'Month':
+                return isUTC ? d.getUTCMonth() : d.getMonth();
+            case 'FullYear':
+                return isUTC ? d.getUTCFullYear() : d.getFullYear();
+            default:
+                return NaN; // Just in case
+        }
+    }
+
+    function set$1(mom, unit, value) {
+        var d, isUTC, year, month, date;
+
+        if (!mom.isValid() || isNaN(value)) {
+            return;
+        }
+
+        d = mom._d;
+        isUTC = mom._isUTC;
+
+        switch (unit) {
+            case 'Milliseconds':
+                return void (isUTC
+                    ? d.setUTCMilliseconds(value)
+                    : d.setMilliseconds(value));
+            case 'Seconds':
+                return void (isUTC ? d.setUTCSeconds(value) : d.setSeconds(value));
+            case 'Minutes':
+                return void (isUTC ? d.setUTCMinutes(value) : d.setMinutes(value));
+            case 'Hours':
+                return void (isUTC ? d.setUTCHours(value) : d.setHours(value));
+            case 'Date':
+                return void (isUTC ? d.setUTCDate(value) : d.setDate(value));
+            // case 'Day': // Not real
+            //    return void (isUTC ? d.setUTCDay(value) : d.setDay(value));
+            // case 'Month': // Not used because we need to pass two variables
+            //     return void (isUTC ? d.setUTCMonth(value) : d.setMonth(value));
+            case 'FullYear':
+                break; // See below ...
+            default:
+                return; // Just in case
+        }
+
+        year = value;
+        month = mom.month();
+        date = mom.date();
+        date = date === 29 && month === 1 && !isLeapYear(year) ? 28 : date;
+        void (isUTC
+            ? d.setUTCFullYear(year, month, date)
+            : d.setFullYear(year, month, date));
+    }
+
+    // MOMENTS
+
+    function stringGet(units) {
+        units = normalizeUnits(units);
+        if (isFunction(this[units])) {
+            return this[units]();
+        }
+        return this;
+    }
+
+    function stringSet(units, value) {
+        if (typeof units === 'object') {
+            units = normalizeObjectUnits(units);
+            var prioritized = getPrioritizedUnits(units),
+                i,
+                prioritizedLen = prioritized.length;
+            for (i = 0; i < prioritizedLen; i++) {
+                this[prioritized[i].unit](units[prioritized[i].unit]);
+            }
+        } else {
+            units = normalizeUnits(units);
+            if (isFunction(this[units])) {
+                return this[units](value);
+            }
+        }
+        return this;
+    }
+
+    function mod(n, x) {
+        return ((n % x) + x) % x;
+    }
+
+    var indexOf;
+
+    if (Array.prototype.indexOf) {
+        indexOf = Array.prototype.indexOf;
+    } else {
+        indexOf = function (o) {
+            // I know
+            var i;
+            for (i = 0; i < this.length; ++i) {
+                if (this[i] === o) {
+                    return i;
+                }
+            }
+            return -1;
+        };
+    }
+
+    function daysInMonth(year, month) {
+        if (isNaN(year) || isNaN(month)) {
+            return NaN;
+        }
+        var modMonth = mod(month, 12);
+        year += (month - modMonth) / 12;
+        return modMonth === 1
+            ? isLeapYear(year)
+                ? 29
+                : 28
+            : 31 - ((modMonth % 7) % 2);
+    }
+
+    // FORMATTING
+
+    addFormatToken('M', ['MM', 2], 'Mo', function () {
+        return this.month() + 1;
+    });
+
+    addFormatToken('MMM', 0, 0, function (format) {
+        return this.localeData().monthsShort(this, format);
+    });
+
+    addFormatToken('MMMM', 0, 0, function (format) {
+        return this.localeData().months(this, format);
+    });
+
+    // PARSING
+
+    addRegexToken('M', match1to2, match1to2NoLeadingZero);
+    addRegexToken('MM', match1to2, match2);
+    addRegexToken('MMM', function (isStrict, locale) {
+        return locale.monthsShortRegex(isStrict);
+    });
+    addRegexToken('MMMM', function (isStrict, locale) {
+        return locale.monthsRegex(isStrict);
+    });
+
+    addParseToken(['M', 'MM'], function (input, array) {
+        array[MONTH] = toInt(input) - 1;
+    });
+
+    addParseToken(['MMM', 'MMMM'], function (input, array, config, token) {
+        var month = config._locale.monthsParse(input, token, config._strict);
+        // if we didn't find a month name, mark the date as invalid.
+        if (month != null) {
+            array[MONTH] = month;
+        } else {
+            getParsingFlags(config).invalidMonth = input;
+        }
+    });
+
+    // LOCALES
+
+    var defaultLocaleMonths =
+            'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+                '_'
+            ),
+        defaultLocaleMonthsShort =
+            'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+        MONTHS_IN_FORMAT = /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?/,
+        defaultMonthsShortRegex = matchWord,
+        defaultMonthsRegex = matchWord;
+
+    function localeMonths(m, format) {
+        if (!m) {
+            return isArray(this._months)
+                ? this._months
+                : this._months['standalone'];
+        }
+        return isArray(this._months)
+            ? this._months[m.month()]
+            : this._months[
+                  (this._months.isFormat || MONTHS_IN_FORMAT).test(format)
+                      ? 'format'
+                      : 'standalone'
+              ][m.month()];
+    }
+
+    function localeMonthsShort(m, format) {
+        if (!m) {
+            return isArray(this._monthsShort)
+                ? this._monthsShort
+                : this._monthsShort['standalone'];
+        }
+        return isArray(this._monthsShort)
+            ? this._monthsShort[m.month()]
+            : this._monthsShort[
+                  MONTHS_IN_FORMAT.test(format) ? 'format' : 'standalone'
+              ][m.month()];
+    }
+
+    function handleStrictParse(monthName, format, strict) {
+        var i,
+            ii,
+            mom,
+            llc = monthName.toLocaleLowerCase();
+        if (!this._monthsParse) {
+            // this is not used
+            this._monthsParse = [];
+            this._longMonthsParse = [];
+            this._shortMonthsParse = [];
+            for (i = 0; i < 12; ++i) {
+                mom = createUTC([2000, i]);
+                this._shortMonthsParse[i] = this.monthsShort(
+                    mom,
+                    ''
+                ).toLocaleLowerCase();
+                this._longMonthsParse[i] = this.months(mom, '').toLocaleLowerCase();
+            }
+        }
+
+        if (strict) {
+            if (format === 'MMM') {
+                ii = indexOf.call(this._shortMonthsParse, llc);
+                return ii !== -1 ? ii : null;
+            } else {
+                ii = indexOf.call(this._longMonthsParse, llc);
+                return ii !== -1 ? ii : null;
+            }
+        } else {
+            if (format === 'MMM') {
+                ii = indexOf.call(this._shortMonthsParse, llc);
+                if (ii !== -1) {
+                    return ii;
+                }
+                ii = indexOf.call(this._longMonthsParse, llc);
+                return ii !== -1 ? ii : null;
+            } else {
+                ii = indexOf.call(this._longMonthsParse, llc);
+                if (ii !== -1) {
+                    return ii;
+                }
+                ii = indexOf.call(this._shortMonthsParse, llc);
+                return ii !== -1 ? ii : null;
+            }
+        }
+    }
+
+    function localeMonthsParse(monthName, format, strict) {
+        var i, mom, regex;
+
+        if (this._monthsParseExact) {
+            return handleStrictParse.call(this, monthName, format, strict);
+        }
+
+        if (!this._monthsParse) {
+            this._monthsParse = [];
+            this._longMonthsParse = [];
+            this._shortMonthsParse = [];
+        }
+
+        // TODO: add sorting
+        // Sorting makes sure if one month (or abbr) is a prefix of another
+        // see sorting in computeMonthsParse
+        for (i = 0; i < 12; i++) {
+            // make the regex if we don't have it already
+            mom = createUTC([2000, i]);
+            if (strict && !this._longMonthsParse[i]) {
+                this._longMonthsParse[i] = new RegExp(
+                    '^' + this.months(mom, '').replace('.', '') + '$',
+                    'i'
+                );
+                this._shortMonthsParse[i] = new RegExp(
+                    '^' + this.monthsShort(mom, '').replace('.', '') + '$',
+                    'i'
+                );
+            }
+            if (!strict && !this._monthsParse[i]) {
+                regex =
+                    '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');
+                this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');
+            }
+            // test the regex
+            if (
+                strict &&
+                format === 'MMMM' &&
+                this._longMonthsParse[i].test(monthName)
+            ) {
+                return i;
+            } else if (
+                strict &&
+                format === 'MMM' &&
+                this._shortMonthsParse[i].test(monthName)
+            ) {
+                return i;
+            } else if (!strict && this._monthsParse[i].test(monthName)) {
+                return i;
+            }
+        }
+    }
+
+    // MOMENTS
+
+    function setMonth(mom, value) {
+        if (!mom.isValid()) {
+            // No op
+            return mom;
+        }
+
+        if (typeof value === 'string') {
+            if (/^\d+$/.test(value)) {
+                value = toInt(value);
+            } else {
+                value = mom.localeData().monthsParse(value);
+                // TODO: Another silent failure?
+                if (!isNumber(value)) {
+                    return mom;
+                }
+            }
+        }
+
+        var month = value,
+            date = mom.date();
+
+        date = date < 29 ? date : Math.min(date, daysInMonth(mom.year(), month));
+        void (mom._isUTC
+            ? mom._d.setUTCMonth(month, date)
+            : mom._d.setMonth(month, date));
+        return mom;
+    }
+
+    function getSetMonth(value) {
+        if (value != null) {
+            setMonth(this, value);
+            hooks.updateOffset(this, true);
+            return this;
+        } else {
+            return get(this, 'Month');
+        }
+    }
+
+    function getDaysInMonth() {
+        return daysInMonth(this.year(), this.month());
+    }
+
+    function monthsShortRegex(isStrict) {
+        if (this._monthsParseExact) {
+            if (!hasOwnProp(this, '_monthsRegex')) {
+                computeMonthsParse.call(this);
+            }
+            if (isStrict) {
+                return this._monthsShortStrictRegex;
+            } else {
+                return this._monthsShortRegex;
+            }
+        } else {
+            if (!hasOwnProp(this, '_monthsShortRegex')) {
+                this._monthsShortRegex = defaultMonthsShortRegex;
+            }
+            return this._monthsShortStrictRegex && isStrict
+                ? this._monthsShortStrictRegex
+                : this._monthsShortRegex;
+        }
+    }
+
+    function monthsRegex(isStrict) {
+        if (this._monthsParseExact) {
+            if (!hasOwnProp(this, '_monthsRegex')) {
+                computeMonthsParse.call(this);
+            }
+            if (isStrict) {
+                return this._monthsStrictRegex;
+            } else {
+                return this._monthsRegex;
+            }
+        } else {
+            if (!hasOwnProp(this, '_monthsRegex')) {
+                this._monthsRegex = defaultMonthsRegex;
+            }
+            return this._monthsStrictRegex && isStrict
+                ? this._monthsStrictRegex
+                : this._monthsRegex;
+        }
+    }
+
+    function computeMonthsParse() {
+        function cmpLenRev(a, b) {
+            return b.length - a.length;
+        }
+
+        var shortPieces = [],
+            longPieces = [],
+            mixedPieces = [],
+            i,
+            mom,
+            shortP,
+            longP;
+        for (i = 0; i < 12; i++) {
+            // make the regex if we don't have it already
+            mom = createUTC([2000, i]);
+            shortP = regexEscape(this.monthsShort(mom, ''));
+            longP = regexEscape(this.months(mom, ''));
+            shortPieces.push(shortP);
+            longPieces.push(longP);
+            mixedPieces.push(longP);
+            mixedPieces.push(shortP);
+        }
+        // Sorting makes sure if one month (or abbr) is a prefix of another it
+        // will match the longer piece.
+        shortPieces.sort(cmpLenRev);
+        longPieces.sort(cmpLenRev);
+        mixedPieces.sort(cmpLenRev);
+
+        this._monthsRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
+        this._monthsShortRegex = this._monthsRegex;
+        this._monthsStrictRegex = new RegExp(
+            '^(' + longPieces.join('|') + ')',
+            'i'
+        );
+        this._monthsShortStrictRegex = new RegExp(
+            '^(' + shortPieces.join('|') + ')',
+            'i'
+        );
+    }
+
+    function createDate(y, m, d, h, M, s, ms) {
+        // can't just apply() to create a date:
+        // https://stackoverflow.com/q/181348
+        var date;
+        // the date constructor remaps years 0-99 to 1900-1999
+        if (y < 100 && y >= 0) {
+            // preserve leap years using a full 400 year cycle, then reset
+            date = new Date(y + 400, m, d, h, M, s, ms);
+            if (isFinite(date.getFullYear())) {
+                date.setFullYear(y);
+            }
+        } else {
+            date = new Date(y, m, d, h, M, s, ms);
+        }
+
+        return date;
+    }
+
+    function createUTCDate(y) {
+        var date, args;
+        // the Date.UTC function remaps years 0-99 to 1900-1999
+        if (y < 100 && y >= 0) {
+            args = Array.prototype.slice.call(arguments);
+            // preserve leap years using a full 400 year cycle, then reset
+            args[0] = y + 400;
+            date = new Date(Date.UTC.apply(null, args));
+            if (isFinite(date.getUTCFullYear())) {
+                date.setUTCFullYear(y);
+            }
+        } else {
+            date = new Date(Date.UTC.apply(null, arguments));
+        }
+
+        return date;
+    }
+
+    // start-of-first-week - start-of-year
+    function firstWeekOffset(year, dow, doy) {
+        var // first-week day -- which january is always in the first week (4 for iso, 1 for other)
+            fwd = 7 + dow - doy,
+            // first-week day local weekday -- which local weekday is fwd
+            fwdlw = (7 + createUTCDate(year, 0, fwd).getUTCDay() - dow) % 7;
+
+        return -fwdlw + fwd - 1;
+    }
+
+    // https://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday
+    function dayOfYearFromWeeks(year, week, weekday, dow, doy) {
+        var localWeekday = (7 + weekday - dow) % 7,
+            weekOffset = firstWeekOffset(year, dow, doy),
+            dayOfYear = 1 + 7 * (week - 1) + localWeekday + weekOffset,
+            resYear,
+            resDayOfYear;
+
+        if (dayOfYear <= 0) {
+            resYear = year - 1;
+            resDayOfYear = daysInYear(resYear) + dayOfYear;
+        } else if (dayOfYear > daysInYear(year)) {
+            resYear = year + 1;
+            resDayOfYear = dayOfYear - daysInYear(year);
+        } else {
+            resYear = year;
+            resDayOfYear = dayOfYear;
+        }
+
+        return {
+            year: resYear,
+            dayOfYear: resDayOfYear,
+        };
+    }
+
+    function weekOfYear(mom, dow, doy) {
+        var weekOffset = firstWeekOffset(mom.year(), dow, doy),
+            week = Math.floor((mom.dayOfYear() - weekOffset - 1) / 7) + 1,
+            resWeek,
+            resYear;
+
+        if (week < 1) {
+            resYear = mom.year() - 1;
+            resWeek = week + weeksInYear(resYear, dow, doy);
+        } else if (week > weeksInYear(mom.year(), dow, doy)) {
+            resWeek = week - weeksInYear(mom.year(), dow, doy);
+            resYear = mom.year() + 1;
+        } else {
+            resYear = mom.year();
+            resWeek = week;
+        }
+
+        return {
+            week: resWeek,
+            year: resYear,
+        };
+    }
+
+    function weeksInYear(year, dow, doy) {
+        var weekOffset = firstWeekOffset(year, dow, doy),
+            weekOffsetNext = firstWeekOffset(year + 1, dow, doy);
+        return (daysInYear(year) - weekOffset + weekOffsetNext) / 7;
+    }
+
+    // FORMATTING
+
+    addFormatToken('w', ['ww', 2], 'wo', 'week');
+    addFormatToken('W', ['WW', 2], 'Wo', 'isoWeek');
+
+    // PARSING
+
+    addRegexToken('w', match1to2, match1to2NoLeadingZero);
+    addRegexToken('ww', match1to2, match2);
+    addRegexToken('W', match1to2, match1to2NoLeadingZero);
+    addRegexToken('WW', match1to2, match2);
+
+    addWeekParseToken(
+        ['w', 'ww', 'W', 'WW'],
+        function (input, week, config, token) {
+            week[token.substr(0, 1)] = toInt(input);
+        }
+    );
+
+    // HELPERS
+
+    // LOCALES
+
+    function localeWeek(mom) {
+        return weekOfYear(mom, this._week.dow, this._week.doy).week;
+    }
+
+    var defaultLocaleWeek = {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    };
+
+    function localeFirstDayOfWeek() {
+        return this._week.dow;
+    }
+
+    function localeFirstDayOfYear() {
+        return this._week.doy;
+    }
+
+    // MOMENTS
+
+    function getSetWeek(input) {
+        var week = this.localeData().week(this);
+        return input == null ? week : this.add((input - week) * 7, 'd');
+    }
+
+    function getSetISOWeek(input) {
+        var week = weekOfYear(this, 1, 4).week;
+        return input == null ? week : this.add((input - week) * 7, 'd');
+    }
+
+    // FORMATTING
+
+    addFormatToken('d', 0, 'do', 'day');
+
+    addFormatToken('dd', 0, 0, function (format) {
+        return this.localeData().weekdaysMin(this, format);
+    });
+
+    addFormatToken('ddd', 0, 0, function (format) {
+        return this.localeData().weekdaysShort(this, format);
+    });
+
+    addFormatToken('dddd', 0, 0, function (format) {
+        return this.localeData().weekdays(this, format);
+    });
+
+    addFormatToken('e', 0, 0, 'weekday');
+    addFormatToken('E', 0, 0, 'isoWeekday');
+
+    // PARSING
+
+    addRegexToken('d', match1to2);
+    addRegexToken('e', match1to2);
+    addRegexToken('E', match1to2);
+    addRegexToken('dd', function (isStrict, locale) {
+        return locale.weekdaysMinRegex(isStrict);
+    });
+    addRegexToken('ddd', function (isStrict, locale) {
+        return locale.weekdaysShortRegex(isStrict);
+    });
+    addRegexToken('dddd', function (isStrict, locale) {
+        return locale.weekdaysRegex(isStrict);
+    });
+
+    addWeekParseToken(['dd', 'ddd', 'dddd'], function (input, week, config, token) {
+        var weekday = config._locale.weekdaysParse(input, token, config._strict);
+        // if we didn't get a weekday name, mark the date as invalid
+        if (weekday != null) {
+            week.d = weekday;
+        } else {
+            getParsingFlags(config).invalidWeekday = input;
+        }
+    });
+
+    addWeekParseToken(['d', 'e', 'E'], function (input, week, config, token) {
+        week[token] = toInt(input);
+    });
+
+    // HELPERS
+
+    function parseWeekday(input, locale) {
+        if (typeof input !== 'string') {
+            return input;
+        }
+
+        if (!isNaN(input)) {
+            return parseInt(input, 10);
+        }
+
+        input = locale.weekdaysParse(input);
+        if (typeof input === 'number') {
+            return input;
+        }
+
+        return null;
+    }
+
+    function parseIsoWeekday(input, locale) {
+        if (typeof input === 'string') {
+            return locale.weekdaysParse(input) % 7 || 7;
+        }
+        return isNaN(input) ? null : input;
+    }
+
+    // LOCALES
+    function shiftWeekdays(ws, n) {
+        return ws.slice(n, 7).concat(ws.slice(0, n));
+    }
+
+    var defaultLocaleWeekdays =
+            'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_'),
+        defaultLocaleWeekdaysShort = 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        defaultLocaleWeekdaysMin = 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        defaultWeekdaysRegex = matchWord,
+        defaultWeekdaysShortRegex = matchWord,
+        defaultWeekdaysMinRegex = matchWord;
+
+    function localeWeekdays(m, format) {
+        var weekdays = isArray(this._weekdays)
+            ? this._weekdays
+            : this._weekdays[
+                  m && m !== true && this._weekdays.isFormat.test(format)
+                      ? 'format'
+                      : 'standalone'
+              ];
+        return m === true
+            ? shiftWeekdays(weekdays, this._week.dow)
+            : m
+              ? weekdays[m.day()]
+              : weekdays;
+    }
+
+    function localeWeekdaysShort(m) {
+        return m === true
+            ? shiftWeekdays(this._weekdaysShort, this._week.dow)
+            : m
+              ? this._weekdaysShort[m.day()]
+              : this._weekdaysShort;
+    }
+
+    function localeWeekdaysMin(m) {
+        return m === true
+            ? shiftWeekdays(this._weekdaysMin, this._week.dow)
+            : m
+              ? this._weekdaysMin[m.day()]
+              : this._weekdaysMin;
+    }
+
+    function handleStrictParse$1(weekdayName, format, strict) {
+        var i,
+            ii,
+            mom,
+            llc = weekdayName.toLocaleLowerCase();
+        if (!this._weekdaysParse) {
+            this._weekdaysParse = [];
+            this._shortWeekdaysParse = [];
+            this._minWeekdaysParse = [];
+
+            for (i = 0; i < 7; ++i) {
+                mom = createUTC([2000, 1]).day(i);
+                this._minWeekdaysParse[i] = this.weekdaysMin(
+                    mom,
+                    ''
+                ).toLocaleLowerCase();
+                this._shortWeekdaysParse[i] = this.weekdaysShort(
+                    mom,
+                    ''
+                ).toLocaleLowerCase();
+                this._weekdaysParse[i] = this.weekdays(mom, '').toLocaleLowerCase();
+            }
+        }
+
+        if (strict) {
+            if (format === 'dddd') {
+                ii = indexOf.call(this._weekdaysParse, llc);
+                return ii !== -1 ? ii : null;
+            } else if (format === 'ddd') {
+                ii = indexOf.call(this._shortWeekdaysParse, llc);
+                return ii !== -1 ? ii : null;
+            } else {
+                ii = indexOf.call(this._minWeekdaysParse, llc);
+                return ii !== -1 ? ii : null;
+            }
+        } else {
+            if (format === 'dddd') {
+                ii = indexOf.call(this._weekdaysParse, llc);
+                if (ii !== -1) {
+                    return ii;
+                }
+                ii = indexOf.call(this._shortWeekdaysParse, llc);
+                if (ii !== -1) {
+                    return ii;
+                }
+                ii = indexOf.call(this._minWeekdaysParse, llc);
+                return ii !== -1 ? ii : null;
+            } else if (format === 'ddd') {
+                ii = indexOf.call(this._shortWeekdaysParse, llc);
+                if (ii !== -1) {
+                    return ii;
+                }
+                ii = indexOf.call(this._weekdaysParse, llc);
+                if (ii !== -1) {
+                    return ii;
+                }
+                ii = indexOf.call(this._minWeekdaysParse, llc);
+                return ii !== -1 ? ii : null;
+            } else {
+                ii = indexOf.call(this._minWeekdaysParse, llc);
+                if (ii !== -1) {
+                    return ii;
+                }
+                ii = indexOf.call(this._weekdaysParse, llc);
+                if (ii !== -1) {
+                    return ii;
+                }
+                ii = indexOf.call(this._shortWeekdaysParse, llc);
+                return ii !== -1 ? ii : null;
+            }
+        }
+    }
+
+    function localeWeekdaysParse(weekdayName, format, strict) {
+        var i, mom, regex;
+
+        if (this._weekdaysParseExact) {
+            return handleStrictParse$1.call(this, weekdayName, format, strict);
+        }
+
+        if (!this._weekdaysParse) {
+            this._weekdaysParse = [];
+            this._minWeekdaysParse = [];
+            this._shortWeekdaysParse = [];
+            this._fullWeekdaysParse = [];
+        }
+
+        for (i = 0; i < 7; i++) {
+            // make the regex if we don't have it already
+
+            mom = createUTC([2000, 1]).day(i);
+            if (strict && !this._fullWeekdaysParse[i]) {
+                this._fullWeekdaysParse[i] = new RegExp(
+                    '^' + this.weekdays(mom, '').replace('.', '\\.?') + '$',
+                    'i'
+                );
+                this._shortWeekdaysParse[i] = new RegExp(
+                    '^' + this.weekdaysShort(mom, '').replace('.', '\\.?') + '$',
+                    'i'
+                );
+                this._minWeekdaysParse[i] = new RegExp(
+                    '^' + this.weekdaysMin(mom, '').replace('.', '\\.?') + '$',
+                    'i'
+                );
+            }
+            if (!this._weekdaysParse[i]) {
+                regex =
+                    '^' +
+                    this.weekdays(mom, '') +
+                    '|^' +
+                    this.weekdaysShort(mom, '') +
+                    '|^' +
+                    this.weekdaysMin(mom, '');
+                this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');
+            }
+            // test the regex
+            if (
+                strict &&
+                format === 'dddd' &&
+                this._fullWeekdaysParse[i].test(weekdayName)
+            ) {
+                return i;
+            } else if (
+                strict &&
+                format === 'ddd' &&
+                this._shortWeekdaysParse[i].test(weekdayName)
+            ) {
+                return i;
+            } else if (
+                strict &&
+                format === 'dd' &&
+                this._minWeekdaysParse[i].test(weekdayName)
+            ) {
+                return i;
+            } else if (!strict && this._weekdaysParse[i].test(weekdayName)) {
+                return i;
+            }
+        }
+    }
+
+    // MOMENTS
+
+    function getSetDayOfWeek(input) {
+        if (!this.isValid()) {
+            return input != null ? this : NaN;
+        }
+
+        var day = get(this, 'Day');
+        if (input != null) {
+            input = parseWeekday(input, this.localeData());
+            return this.add(input - day, 'd');
+        } else {
+            return day;
+        }
+    }
+
+    function getSetLocaleDayOfWeek(input) {
+        if (!this.isValid()) {
+            return input != null ? this : NaN;
+        }
+        var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7;
+        return input == null ? weekday : this.add(input - weekday, 'd');
+    }
+
+    function getSetISODayOfWeek(input) {
+        if (!this.isValid()) {
+            return input != null ? this : NaN;
+        }
+
+        // behaves the same as moment#day except
+        // as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)
+        // as a setter, sunday should belong to the previous week.
+
+        if (input != null) {
+            var weekday = parseIsoWeekday(input, this.localeData());
+            return this.day(this.day() % 7 ? weekday : weekday - 7);
+        } else {
+            return this.day() || 7;
+        }
+    }
+
+    function weekdaysRegex(isStrict) {
+        if (this._weekdaysParseExact) {
+            if (!hasOwnProp(this, '_weekdaysRegex')) {
+                computeWeekdaysParse.call(this);
+            }
+            if (isStrict) {
+                return this._weekdaysStrictRegex;
+            } else {
+                return this._weekdaysRegex;
+            }
+        } else {
+            if (!hasOwnProp(this, '_weekdaysRegex')) {
+                this._weekdaysRegex = defaultWeekdaysRegex;
+            }
+            return this._weekdaysStrictRegex && isStrict
+                ? this._weekdaysStrictRegex
+                : this._weekdaysRegex;
+        }
+    }
+
+    function weekdaysShortRegex(isStrict) {
+        if (this._weekdaysParseExact) {
+            if (!hasOwnProp(this, '_weekdaysRegex')) {
+                computeWeekdaysParse.call(this);
+            }
+            if (isStrict) {
+                return this._weekdaysShortStrictRegex;
+            } else {
+                return this._weekdaysShortRegex;
+            }
+        } else {
+            if (!hasOwnProp(this, '_weekdaysShortRegex')) {
+                this._weekdaysShortRegex = defaultWeekdaysShortRegex;
+            }
+            return this._weekdaysShortStrictRegex && isStrict
+                ? this._weekdaysShortStrictRegex
+                : this._weekdaysShortRegex;
+        }
+    }
+
+    function weekdaysMinRegex(isStrict) {
+        if (this._weekdaysParseExact) {
+            if (!hasOwnProp(this, '_weekdaysRegex')) {
+                computeWeekdaysParse.call(this);
+            }
+            if (isStrict) {
+                return this._weekdaysMinStrictRegex;
+            } else {
+                return this._weekdaysMinRegex;
+            }
+        } else {
+            if (!hasOwnProp(this, '_weekdaysMinRegex')) {
+                this._weekdaysMinRegex = defaultWeekdaysMinRegex;
+            }
+            return this._weekdaysMinStrictRegex && isStrict
+                ? this._weekdaysMinStrictRegex
+                : this._weekdaysMinRegex;
+        }
+    }
+
+    function computeWeekdaysParse() {
+        function cmpLenRev(a, b) {
+            return b.length - a.length;
+        }
+
+        var minPieces = [],
+            shortPieces = [],
+            longPieces = [],
+            mixedPieces = [],
+            i,
+            mom,
+            minp,
+            shortp,
+            longp;
+        for (i = 0; i < 7; i++) {
+            // make the regex if we don't have it already
+            mom = createUTC([2000, 1]).day(i);
+            minp = regexEscape(this.weekdaysMin(mom, ''));
+            shortp = regexEscape(this.weekdaysShort(mom, ''));
+            longp = regexEscape(this.weekdays(mom, ''));
+            minPieces.push(minp);
+            shortPieces.push(shortp);
+            longPieces.push(longp);
+            mixedPieces.push(minp);
+            mixedPieces.push(shortp);
+            mixedPieces.push(longp);
+        }
+        // Sorting makes sure if one weekday (or abbr) is a prefix of another it
+        // will match the longer piece.
+        minPieces.sort(cmpLenRev);
+        shortPieces.sort(cmpLenRev);
+        longPieces.sort(cmpLenRev);
+        mixedPieces.sort(cmpLenRev);
+
+        this._weekdaysRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
+        this._weekdaysShortRegex = this._weekdaysRegex;
+        this._weekdaysMinRegex = this._weekdaysRegex;
+
+        this._weekdaysStrictRegex = new RegExp(
+            '^(' + longPieces.join('|') + ')',
+            'i'
+        );
+        this._weekdaysShortStrictRegex = new RegExp(
+            '^(' + shortPieces.join('|') + ')',
+            'i'
+        );
+        this._weekdaysMinStrictRegex = new RegExp(
+            '^(' + minPieces.join('|') + ')',
+            'i'
+        );
+    }
+
+    // FORMATTING
+
+    function hFormat() {
+        return this.hours() % 12 || 12;
+    }
+
+    function kFormat() {
+        return this.hours() || 24;
+    }
+
+    addFormatToken('H', ['HH', 2], 0, 'hour');
+    addFormatToken('h', ['hh', 2], 0, hFormat);
+    addFormatToken('k', ['kk', 2], 0, kFormat);
+
+    addFormatToken('hmm', 0, 0, function () {
+        return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2);
+    });
+
+    addFormatToken('hmmss', 0, 0, function () {
+        return (
+            '' +
+            hFormat.apply(this) +
+            zeroFill(this.minutes(), 2) +
+            zeroFill(this.seconds(), 2)
+        );
+    });
+
+    addFormatToken('Hmm', 0, 0, function () {
+        return '' + this.hours() + zeroFill(this.minutes(), 2);
+    });
+
+    addFormatToken('Hmmss', 0, 0, function () {
+        return (
+            '' +
+            this.hours() +
+            zeroFill(this.minutes(), 2) +
+            zeroFill(this.seconds(), 2)
+        );
+    });
+
+    function meridiem(token, lowercase) {
+        addFormatToken(token, 0, 0, function () {
+            return this.localeData().meridiem(
+                this.hours(),
+                this.minutes(),
+                lowercase
+            );
+        });
+    }
+
+    meridiem('a', true);
+    meridiem('A', false);
+
+    // PARSING
+
+    function matchMeridiem(isStrict, locale) {
+        return locale._meridiemParse;
+    }
+
+    addRegexToken('a', matchMeridiem);
+    addRegexToken('A', matchMeridiem);
+    addRegexToken('H', match1to2, match1to2HasZero);
+    addRegexToken('h', match1to2, match1to2NoLeadingZero);
+    addRegexToken('k', match1to2, match1to2NoLeadingZero);
+    addRegexToken('HH', match1to2, match2);
+    addRegexToken('hh', match1to2, match2);
+    addRegexToken('kk', match1to2, match2);
+
+    addRegexToken('hmm', match3to4);
+    addRegexToken('hmmss', match5to6);
+    addRegexToken('Hmm', match3to4);
+    addRegexToken('Hmmss', match5to6);
+
+    addParseToken(['H', 'HH'], HOUR);
+    addParseToken(['k', 'kk'], function (input, array, config) {
+        var kInput = toInt(input);
+        array[HOUR] = kInput === 24 ? 0 : kInput;
+    });
+    addParseToken(['a', 'A'], function (input, array, config) {
+        config._isPm = config._locale.isPM(input);
+        config._meridiem = input;
+    });
+    addParseToken(['h', 'hh'], function (input, array, config) {
+        array[HOUR] = toInt(input);
+        getParsingFlags(config).bigHour = true;
+    });
+    addParseToken('hmm', function (input, array, config) {
+        var pos = input.length - 2;
+        array[HOUR] = toInt(input.substr(0, pos));
+        array[MINUTE] = toInt(input.substr(pos));
+        getParsingFlags(config).bigHour = true;
+    });
+    addParseToken('hmmss', function (input, array, config) {
+        var pos1 = input.length - 4,
+            pos2 = input.length - 2;
+        array[HOUR] = toInt(input.substr(0, pos1));
+        array[MINUTE] = toInt(input.substr(pos1, 2));
+        array[SECOND] = toInt(input.substr(pos2));
+        getParsingFlags(config).bigHour = true;
+    });
+    addParseToken('Hmm', function (input, array, config) {
+        var pos = input.length - 2;
+        array[HOUR] = toInt(input.substr(0, pos));
+        array[MINUTE] = toInt(input.substr(pos));
+    });
+    addParseToken('Hmmss', function (input, array, config) {
+        var pos1 = input.length - 4,
+            pos2 = input.length - 2;
+        array[HOUR] = toInt(input.substr(0, pos1));
+        array[MINUTE] = toInt(input.substr(pos1, 2));
+        array[SECOND] = toInt(input.substr(pos2));
+    });
+
+    // LOCALES
+
+    function localeIsPM(input) {
+        // IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays
+        // Using charAt should be more compatible.
+        return (input + '').toLowerCase().charAt(0) === 'p';
+    }
+
+    var defaultLocaleMeridiemParse = /[ap]\.?m?\.?/i,
+        // Setting the hour should keep the time, because the user explicitly
+        // specified which hour they want. So trying to maintain the same hour (in
+        // a new timezone) makes sense. Adding/subtracting hours does not follow
+        // this rule.
+        getSetHour = makeGetSet('Hours', true);
+
+    function localeMeridiem(hours, minutes, isLower) {
+        if (hours > 11) {
+            return isLower ? 'pm' : 'PM';
+        } else {
+            return isLower ? 'am' : 'AM';
+        }
+    }
+
+    var baseConfig = {
+        calendar: defaultCalendar,
+        longDateFormat: defaultLongDateFormat,
+        invalidDate: defaultInvalidDate,
+        ordinal: defaultOrdinal,
+        dayOfMonthOrdinalParse: defaultDayOfMonthOrdinalParse,
+        relativeTime: defaultRelativeTime,
+
+        months: defaultLocaleMonths,
+        monthsShort: defaultLocaleMonthsShort,
+
+        week: defaultLocaleWeek,
+
+        weekdays: defaultLocaleWeekdays,
+        weekdaysMin: defaultLocaleWeekdaysMin,
+        weekdaysShort: defaultLocaleWeekdaysShort,
+
+        meridiemParse: defaultLocaleMeridiemParse,
+    };
+
+    // internal storage for locale config files
+    var locales = {},
+        localeFamilies = {},
+        globalLocale;
+
+    function commonPrefix(arr1, arr2) {
+        var i,
+            minl = Math.min(arr1.length, arr2.length);
+        for (i = 0; i < minl; i += 1) {
+            if (arr1[i] !== arr2[i]) {
+                return i;
+            }
+        }
+        return minl;
+    }
+
+    function normalizeLocale(key) {
+        return key ? key.toLowerCase().replace('_', '-') : key;
+    }
+
+    // pick the locale from the array
+    // try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each
+    // substring from most specific to least, but move to the next array item if it's a more specific variant than the current root
+    function chooseLocale(names) {
+        var i = 0,
+            j,
+            next,
+            locale,
+            split;
+
+        while (i < names.length) {
+            split = normalizeLocale(names[i]).split('-');
+            j = split.length;
+            next = normalizeLocale(names[i + 1]);
+            next = next ? next.split('-') : null;
+            while (j > 0) {
+                locale = loadLocale(split.slice(0, j).join('-'));
+                if (locale) {
+                    return locale;
+                }
+                if (
+                    next &&
+                    next.length >= j &&
+                    commonPrefix(split, next) >= j - 1
+                ) {
+                    //the next array item is better than a shallower substring of this one
+                    break;
+                }
+                j--;
+            }
+            i++;
+        }
+        return globalLocale;
+    }
+
+    function isLocaleNameSane(name) {
+        // Prevent names that look like filesystem paths, i.e contain '/' or '\'
+        // Ensure name is available and function returns boolean
+        return !!(name && name.match('^[^/\\\\]*$'));
+    }
+
+    function loadLocale(name) {
+        var oldLocale = null,
+            aliasedRequire;
+        // TODO: Find a better way to register and load all the locales in Node
+        if (
+            locales[name] === undefined &&
+            typeof module !== 'undefined' &&
+            module &&
+            module.exports &&
+            isLocaleNameSane(name)
+        ) {
+            try {
+                oldLocale = globalLocale._abbr;
+                aliasedRequire = require;
+                aliasedRequire('./locale/' + name);
+                getSetGlobalLocale(oldLocale);
+            } catch (e) {
+                // mark as not found to avoid repeating expensive file require call causing high CPU
+                // when trying to find en-US, en_US, en-us for every format call
+                locales[name] = null; // null means not found
+            }
+        }
+        return locales[name];
+    }
+
+    // This function will load locale and then set the global locale.  If
+    // no arguments are passed in, it will simply return the current global
+    // locale key.
+    function getSetGlobalLocale(key, values) {
+        var data;
+        if (key) {
+            if (isUndefined(values)) {
+                data = getLocale(key);
+            } else {
+                data = defineLocale(key, values);
+            }
+
+            if (data) {
+                // moment.duration._locale = moment._locale = data;
+                globalLocale = data;
+            } else {
+                if (typeof console !== 'undefined' && console.warn) {
+                    //warn user if arguments are passed but the locale could not be set
+                    console.warn(
+                        'Locale ' + key + ' not found. Did you forget to load it?'
+                    );
+                }
+            }
+        }
+
+        return globalLocale._abbr;
+    }
+
+    function defineLocale(name, config) {
+        if (config !== null) {
+            var locale,
+                parentConfig = baseConfig;
+            config.abbr = name;
+            if (locales[name] != null) {
+                deprecateSimple(
+                    'defineLocaleOverride',
+                    'use moment.updateLocale(localeName, config) to change ' +
+                        'an existing locale. moment.defineLocale(localeName, ' +
+                        'config) should only be used for creating a new locale ' +
+                        'See http://momentjs.com/guides/#/warnings/define-locale/ for more info.'
+                );
+                parentConfig = locales[name]._config;
+            } else if (config.parentLocale != null) {
+                if (locales[config.parentLocale] != null) {
+                    parentConfig = locales[config.parentLocale]._config;
+                } else {
+                    locale = loadLocale(config.parentLocale);
+                    if (locale != null) {
+                        parentConfig = locale._config;
+                    } else {
+                        if (!localeFamilies[config.parentLocale]) {
+                            localeFamilies[config.parentLocale] = [];
+                        }
+                        localeFamilies[config.parentLocale].push({
+                            name: name,
+                            config: config,
+                        });
+                        return null;
+                    }
+                }
+            }
+            locales[name] = new Locale(mergeConfigs(parentConfig, config));
+
+            if (localeFamilies[name]) {
+                localeFamilies[name].forEach(function (x) {
+                    defineLocale(x.name, x.config);
+                });
+            }
+
+            // backwards compat for now: also set the locale
+            // make sure we set the locale AFTER all child locales have been
+            // created, so we won't end up with the child locale set.
+            getSetGlobalLocale(name);
+
+            return locales[name];
+        } else {
+            // useful for testing
+            delete locales[name];
+            return null;
+        }
+    }
+
+    function updateLocale(name, config) {
+        if (config != null) {
+            var locale,
+                tmpLocale,
+                parentConfig = baseConfig;
+
+            if (locales[name] != null && locales[name].parentLocale != null) {
+                // Update existing child locale in-place to avoid memory-leaks
+                locales[name].set(mergeConfigs(locales[name]._config, config));
+            } else {
+                // MERGE
+                tmpLocale = loadLocale(name);
+                if (tmpLocale != null) {
+                    parentConfig = tmpLocale._config;
+                }
+                config = mergeConfigs(parentConfig, config);
+                if (tmpLocale == null) {
+                    // updateLocale is called for creating a new locale
+                    // Set abbr so it will have a name (getters return
+                    // undefined otherwise).
+                    config.abbr = name;
+                }
+                locale = new Locale(config);
+                locale.parentLocale = locales[name];
+                locales[name] = locale;
+            }
+
+            // backwards compat for now: also set the locale
+            getSetGlobalLocale(name);
+        } else {
+            // pass null for config to unupdate, useful for tests
+            if (locales[name] != null) {
+                if (locales[name].parentLocale != null) {
+                    locales[name] = locales[name].parentLocale;
+                    if (name === getSetGlobalLocale()) {
+                        getSetGlobalLocale(name);
+                    }
+                } else if (locales[name] != null) {
+                    delete locales[name];
+                }
+            }
+        }
+        return locales[name];
+    }
+
+    // returns locale data
+    function getLocale(key) {
+        var locale;
+
+        if (key && key._locale && key._locale._abbr) {
+            key = key._locale._abbr;
+        }
+
+        if (!key) {
+            return globalLocale;
+        }
+
+        if (!isArray(key)) {
+            //short-circuit everything else
+            locale = loadLocale(key);
+            if (locale) {
+                return locale;
+            }
+            key = [key];
+        }
+
+        return chooseLocale(key);
+    }
+
+    function listLocales() {
+        return keys(locales);
+    }
+
+    function checkOverflow(m) {
+        var overflow,
+            a = m._a;
+
+        if (a && getParsingFlags(m).overflow === -2) {
+            overflow =
+                a[MONTH] < 0 || a[MONTH] > 11
+                    ? MONTH
+                    : a[DATE] < 1 || a[DATE] > daysInMonth(a[YEAR], a[MONTH])
+                      ? DATE
+                      : a[HOUR] < 0 ||
+                          a[HOUR] > 24 ||
+                          (a[HOUR] === 24 &&
+                              (a[MINUTE] !== 0 ||
+                                  a[SECOND] !== 0 ||
+                                  a[MILLISECOND] !== 0))
+                        ? HOUR
+                        : a[MINUTE] < 0 || a[MINUTE] > 59
+                          ? MINUTE
+                          : a[SECOND] < 0 || a[SECOND] > 59
+                            ? SECOND
+                            : a[MILLISECOND] < 0 || a[MILLISECOND] > 999
+                              ? MILLISECOND
+                              : -1;
+
+            if (
+                getParsingFlags(m)._overflowDayOfYear &&
+                (overflow < YEAR || overflow > DATE)
+            ) {
+                overflow = DATE;
+            }
+            if (getParsingFlags(m)._overflowWeeks && overflow === -1) {
+                overflow = WEEK;
+            }
+            if (getParsingFlags(m)._overflowWeekday && overflow === -1) {
+                overflow = WEEKDAY;
+            }
+
+            getParsingFlags(m).overflow = overflow;
+        }
+
+        return m;
+    }
+
+    // iso 8601 regex
+    // 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
+    var extendedIsoRegex =
+            /^\s*((?:[+-]\d{6}|\d{4})-(?:\d\d-\d\d|W\d\d-\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?::\d\d(?::\d\d(?:[.,]\d+)?)?)?)([+-]\d\d(?::?\d\d)?|\s*Z)?)?$/,
+        basicIsoRegex =
+            /^\s*((?:[+-]\d{6}|\d{4})(?:\d\d\d\d|W\d\d\d|W\d\d|\d\d\d|\d\d|))(?:(T| )(\d\d(?:\d\d(?:\d\d(?:[.,]\d+)?)?)?)([+-]\d\d(?::?\d\d)?|\s*Z)?)?$/,
+        tzRegex = /Z|[+-]\d\d(?::?\d\d)?/,
+        isoDates = [
+            ['YYYYYY-MM-DD', /[+-]\d{6}-\d\d-\d\d/],
+            ['YYYY-MM-DD', /\d{4}-\d\d-\d\d/],
+            ['GGGG-[W]WW-E', /\d{4}-W\d\d-\d/],
+            ['GGGG-[W]WW', /\d{4}-W\d\d/, false],
+            ['YYYY-DDD', /\d{4}-\d{3}/],
+            ['YYYY-MM', /\d{4}-\d\d/, false],
+            ['YYYYYYMMDD', /[+-]\d{10}/],
+            ['YYYYMMDD', /\d{8}/],
+            ['GGGG[W]WWE', /\d{4}W\d{3}/],
+            ['GGGG[W]WW', /\d{4}W\d{2}/, false],
+            ['YYYYDDD', /\d{7}/],
+            ['YYYYMM', /\d{6}/, false],
+            ['YYYY', /\d{4}/, false],
+        ],
+        // iso time formats and regexes
+        isoTimes = [
+            ['HH:mm:ss.SSSS', /\d\d:\d\d:\d\d\.\d+/],
+            ['HH:mm:ss,SSSS', /\d\d:\d\d:\d\d,\d+/],
+            ['HH:mm:ss', /\d\d:\d\d:\d\d/],
+            ['HH:mm', /\d\d:\d\d/],
+            ['HHmmss.SSSS', /\d\d\d\d\d\d\.\d+/],
+            ['HHmmss,SSSS', /\d\d\d\d\d\d,\d+/],
+            ['HHmmss', /\d\d\d\d\d\d/],
+            ['HHmm', /\d\d\d\d/],
+            ['HH', /\d\d/],
+        ],
+        aspNetJsonRegex = /^\/?Date\((-?\d+)/i,
+        // RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3
+        rfc2822 =
+            /^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\s)?(\d{1,2})\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s(\d{2,4})\s(\d\d):(\d\d)(?::(\d\d))?\s(?:(UT|GMT|[ECMP][SD]T)|([Zz])|([+-]\d{4}))$/,
+        obsOffsets = {
+            UT: 0,
+            GMT: 0,
+            EDT: -4 * 60,
+            EST: -5 * 60,
+            CDT: -5 * 60,
+            CST: -6 * 60,
+            MDT: -6 * 60,
+            MST: -7 * 60,
+            PDT: -7 * 60,
+            PST: -8 * 60,
+        };
+
+    // date from iso format
+    function configFromISO(config) {
+        var i,
+            l,
+            string = config._i,
+            match = extendedIsoRegex.exec(string) || basicIsoRegex.exec(string),
+            allowTime,
+            dateFormat,
+            timeFormat,
+            tzFormat,
+            isoDatesLen = isoDates.length,
+            isoTimesLen = isoTimes.length;
+
+        if (match) {
+            getParsingFlags(config).iso = true;
+            for (i = 0, l = isoDatesLen; i < l; i++) {
+                if (isoDates[i][1].exec(match[1])) {
+                    dateFormat = isoDates[i][0];
+                    allowTime = isoDates[i][2] !== false;
+                    break;
+                }
+            }
+            if (dateFormat == null) {
+                config._isValid = false;
+                return;
+            }
+            if (match[3]) {
+                for (i = 0, l = isoTimesLen; i < l; i++) {
+                    if (isoTimes[i][1].exec(match[3])) {
+                        // match[2] should be 'T' or space
+                        timeFormat = (match[2] || ' ') + isoTimes[i][0];
+                        break;
+                    }
+                }
+                if (timeFormat == null) {
+                    config._isValid = false;
+                    return;
+                }
+            }
+            if (!allowTime && timeFormat != null) {
+                config._isValid = false;
+                return;
+            }
+            if (match[4]) {
+                if (tzRegex.exec(match[4])) {
+                    tzFormat = 'Z';
+                } else {
+                    config._isValid = false;
+                    return;
+                }
+            }
+            config._f = dateFormat + (timeFormat || '') + (tzFormat || '');
+            configFromStringAndFormat(config);
+        } else {
+            config._isValid = false;
+        }
+    }
+
+    function extractFromRFC2822Strings(
+        yearStr,
+        monthStr,
+        dayStr,
+        hourStr,
+        minuteStr,
+        secondStr
+    ) {
+        var result = [
+            untruncateYear(yearStr),
+            defaultLocaleMonthsShort.indexOf(monthStr),
+            parseInt(dayStr, 10),
+            parseInt(hourStr, 10),
+            parseInt(minuteStr, 10),
+        ];
+
+        if (secondStr) {
+            result.push(parseInt(secondStr, 10));
+        }
+
+        return result;
+    }
+
+    function untruncateYear(yearStr) {
+        var year = parseInt(yearStr, 10);
+        if (year <= 49) {
+            return 2000 + year;
+        } else if (year <= 999) {
+            return 1900 + year;
+        }
+        return year;
+    }
+
+    function preprocessRFC2822(s) {
+        // Remove comments and folding whitespace and replace multiple-spaces with a single space
+        return s
+            .replace(/\([^()]*\)|[\n\t]/g, ' ')
+            .replace(/(\s\s+)/g, ' ')
+            .replace(/^\s\s*/, '')
+            .replace(/\s\s*$/, '');
+    }
+
+    function checkWeekday(weekdayStr, parsedInput, config) {
+        if (weekdayStr) {
+            // TODO: Replace the vanilla JS Date object with an independent day-of-week check.
+            var weekdayProvided = defaultLocaleWeekdaysShort.indexOf(weekdayStr),
+                weekdayActual = new Date(
+                    parsedInput[0],
+                    parsedInput[1],
+                    parsedInput[2]
+                ).getDay();
+            if (weekdayProvided !== weekdayActual) {
+                getParsingFlags(config).weekdayMismatch = true;
+                config._isValid = false;
+                return false;
+            }
+        }
+        return true;
+    }
+
+    function calculateOffset(obsOffset, militaryOffset, numOffset) {
+        if (obsOffset) {
+            return obsOffsets[obsOffset];
+        } else if (militaryOffset) {
+            // the only allowed military tz is Z
+            return 0;
+        } else {
+            var hm = parseInt(numOffset, 10),
+                m = hm % 100,
+                h = (hm - m) / 100;
+            return h * 60 + m;
+        }
+    }
+
+    // date and time from ref 2822 format
+    function configFromRFC2822(config) {
+        var match = rfc2822.exec(preprocessRFC2822(config._i)),
+            parsedArray;
+        if (match) {
+            parsedArray = extractFromRFC2822Strings(
+                match[4],
+                match[3],
+                match[2],
+                match[5],
+                match[6],
+                match[7]
+            );
+            if (!checkWeekday(match[1], parsedArray, config)) {
+                return;
+            }
+
+            config._a = parsedArray;
+            config._tzm = calculateOffset(match[8], match[9], match[10]);
+
+            config._d = createUTCDate.apply(null, config._a);
+            config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
+
+            getParsingFlags(config).rfc2822 = true;
+        } else {
+            config._isValid = false;
+        }
+    }
+
+    // date from 1) ASP.NET, 2) ISO, 3) RFC 2822 formats, or 4) optional fallback if parsing isn't strict
+    function configFromString(config) {
+        var matched = aspNetJsonRegex.exec(config._i);
+        if (matched !== null) {
+            config._d = new Date(+matched[1]);
+            return;
+        }
+
+        configFromISO(config);
+        if (config._isValid === false) {
+            delete config._isValid;
+        } else {
+            return;
+        }
+
+        configFromRFC2822(config);
+        if (config._isValid === false) {
+            delete config._isValid;
+        } else {
+            return;
+        }
+
+        if (config._strict) {
+            config._isValid = false;
+        } else {
+            // Final attempt, use Input Fallback
+            hooks.createFromInputFallback(config);
+        }
+    }
+
+    hooks.createFromInputFallback = deprecate(
+        'value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' +
+            'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' +
+            'discouraged. Please refer to http://momentjs.com/guides/#/warnings/js-date/ for more info.',
+        function (config) {
+            config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));
+        }
+    );
+
+    // Pick the first defined of two or three arguments.
+    function defaults(a, b, c) {
+        if (a != null) {
+            return a;
+        }
+        if (b != null) {
+            return b;
+        }
+        return c;
+    }
+
+    function currentDateArray(config) {
+        // hooks is actually the exported moment object
+        var nowValue = new Date(hooks.now());
+        if (config._useUTC) {
+            return [
+                nowValue.getUTCFullYear(),
+                nowValue.getUTCMonth(),
+                nowValue.getUTCDate(),
+            ];
+        }
+        return [nowValue.getFullYear(), nowValue.getMonth(), nowValue.getDate()];
+    }
+
+    // convert an array to a date.
+    // the array should mirror the parameters below
+    // note: all values past the year are optional and will default to the lowest possible value.
+    // [year, month, day , hour, minute, second, millisecond]
+    function configFromArray(config) {
+        var i,
+            date,
+            input = [],
+            currentDate,
+            expectedWeekday,
+            yearToUse;
+
+        if (config._d) {
+            return;
+        }
+
+        currentDate = currentDateArray(config);
+
+        //compute day of the year from weeks and weekdays
+        if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {
+            dayOfYearFromWeekInfo(config);
+        }
+
+        //if the day of the year is set, figure out what it is
+        if (config._dayOfYear != null) {
+            yearToUse = defaults(config._a[YEAR], currentDate[YEAR]);
+
+            if (
+                config._dayOfYear > daysInYear(yearToUse) ||
+                config._dayOfYear === 0
+            ) {
+                getParsingFlags(config)._overflowDayOfYear = true;
+            }
+
+            date = createUTCDate(yearToUse, 0, config._dayOfYear);
+            config._a[MONTH] = date.getUTCMonth();
+            config._a[DATE] = date.getUTCDate();
+        }
+
+        // Default to current date.
+        // * if no year, month, day of month are given, default to today
+        // * if day of month is given, default month and year
+        // * if month is given, default only year
+        // * if year is given, don't default anything
+        for (i = 0; i < 3 && config._a[i] == null; ++i) {
+            config._a[i] = input[i] = currentDate[i];
+        }
+
+        // Zero out whatever was not defaulted, including time
+        for (; i < 7; i++) {
+            config._a[i] = input[i] =
+                config._a[i] == null ? (i === 2 ? 1 : 0) : config._a[i];
+        }
+
+        // Check for 24:00:00.000
+        if (
+            config._a[HOUR] === 24 &&
+            config._a[MINUTE] === 0 &&
+            config._a[SECOND] === 0 &&
+            config._a[MILLISECOND] === 0
+        ) {
+            config._nextDay = true;
+            config._a[HOUR] = 0;
+        }
+
+        config._d = (config._useUTC ? createUTCDate : createDate).apply(
+            null,
+            input
+        );
+        expectedWeekday = config._useUTC
+            ? config._d.getUTCDay()
+            : config._d.getDay();
+
+        // Apply timezone offset from input. The actual utcOffset can be changed
+        // with parseZone.
+        if (config._tzm != null) {
+            config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
+        }
+
+        if (config._nextDay) {
+            config._a[HOUR] = 24;
+        }
+
+        // check for mismatching day of week
+        if (
+            config._w &&
+            typeof config._w.d !== 'undefined' &&
+            config._w.d !== expectedWeekday
+        ) {
+            getParsingFlags(config).weekdayMismatch = true;
+        }
+    }
+
+    function dayOfYearFromWeekInfo(config) {
+        var w, weekYear, week, weekday, dow, doy, temp, weekdayOverflow, curWeek;
+
+        w = config._w;
+        if (w.GG != null || w.W != null || w.E != null) {
+            dow = 1;
+            doy = 4;
+
+            // TODO: We need to take the current isoWeekYear, but that depends on
+            // how we interpret now (local, utc, fixed offset). So create
+            // a now version of current config (take local/utc/offset flags, and
+            // create now).
+            weekYear = defaults(
+                w.GG,
+                config._a[YEAR],
+                weekOfYear(createLocal(), 1, 4).year
+            );
+            week = defaults(w.W, 1);
+            weekday = defaults(w.E, 1);
+            if (weekday < 1 || weekday > 7) {
+                weekdayOverflow = true;
+            }
+        } else {
+            dow = config._locale._week.dow;
+            doy = config._locale._week.doy;
+
+            curWeek = weekOfYear(createLocal(), dow, doy);
+
+            weekYear = defaults(w.gg, config._a[YEAR], curWeek.year);
+
+            // Default to current week.
+            week = defaults(w.w, curWeek.week);
+
+            if (w.d != null) {
+                // weekday -- low day numbers are considered next week
+                weekday = w.d;
+                if (weekday < 0 || weekday > 6) {
+                    weekdayOverflow = true;
+                }
+            } else if (w.e != null) {
+                // local weekday -- counting starts from beginning of week
+                weekday = w.e + dow;
+                if (w.e < 0 || w.e > 6) {
+                    weekdayOverflow = true;
+                }
+            } else {
+                // default to beginning of week
+                weekday = dow;
+            }
+        }
+        if (week < 1 || week > weeksInYear(weekYear, dow, doy)) {
+            getParsingFlags(config)._overflowWeeks = true;
+        } else if (weekdayOverflow != null) {
+            getParsingFlags(config)._overflowWeekday = true;
+        } else {
+            temp = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy);
+            config._a[YEAR] = temp.year;
+            config._dayOfYear = temp.dayOfYear;
+        }
+    }
+
+    // constant that refers to the ISO standard
+    hooks.ISO_8601 = function () {};
+
+    // constant that refers to the RFC 2822 form
+    hooks.RFC_2822 = function () {};
+
+    // date from string and format string
+    function configFromStringAndFormat(config) {
+        // TODO: Move this to another part of the creation flow to prevent circular deps
+        if (config._f === hooks.ISO_8601) {
+            configFromISO(config);
+            return;
+        }
+        if (config._f === hooks.RFC_2822) {
+            configFromRFC2822(config);
+            return;
+        }
+        config._a = [];
+        getParsingFlags(config).empty = true;
+
+        // This array is used to make a Date, either with `new Date` or `Date.UTC`
+        var string = '' + config._i,
+            i,
+            parsedInput,
+            tokens,
+            token,
+            skipped,
+            stringLength = string.length,
+            totalParsedInputLength = 0,
+            era,
+            tokenLen;
+
+        tokens =
+            expandFormat(config._f, config._locale).match(formattingTokens) || [];
+        tokenLen = tokens.length;
+        for (i = 0; i < tokenLen; i++) {
+            token = tokens[i];
+            parsedInput = (string.match(getParseRegexForToken(token, config)) ||
+                [])[0];
+            if (parsedInput) {
+                skipped = string.substr(0, string.indexOf(parsedInput));
+                if (skipped.length > 0) {
+                    getParsingFlags(config).unusedInput.push(skipped);
+                }
+                string = string.slice(
+                    string.indexOf(parsedInput) + parsedInput.length
+                );
+                totalParsedInputLength += parsedInput.length;
+            }
+            // don't parse if it's not a known token
+            if (formatTokenFunctions[token]) {
+                if (parsedInput) {
+                    getParsingFlags(config).empty = false;
+                } else {
+                    getParsingFlags(config).unusedTokens.push(token);
+                }
+                addTimeToArrayFromToken(token, parsedInput, config);
+            } else if (config._strict && !parsedInput) {
+                getParsingFlags(config).unusedTokens.push(token);
+            }
+        }
+
+        // add remaining unparsed input length to the string
+        getParsingFlags(config).charsLeftOver =
+            stringLength - totalParsedInputLength;
+        if (string.length > 0) {
+            getParsingFlags(config).unusedInput.push(string);
+        }
+
+        // clear _12h flag if hour is <= 12
+        if (
+            config._a[HOUR] <= 12 &&
+            getParsingFlags(config).bigHour === true &&
+            config._a[HOUR] > 0
+        ) {
+            getParsingFlags(config).bigHour = undefined;
+        }
+
+        getParsingFlags(config).parsedDateParts = config._a.slice(0);
+        getParsingFlags(config).meridiem = config._meridiem;
+        // handle meridiem
+        config._a[HOUR] = meridiemFixWrap(
+            config._locale,
+            config._a[HOUR],
+            config._meridiem
+        );
+
+        // handle era
+        era = getParsingFlags(config).era;
+        if (era !== null) {
+            config._a[YEAR] = config._locale.erasConvertYear(era, config._a[YEAR]);
+        }
+
+        configFromArray(config);
+        checkOverflow(config);
+    }
+
+    function meridiemFixWrap(locale, hour, meridiem) {
+        var isPm;
+
+        if (meridiem == null) {
+            // nothing to do
+            return hour;
+        }
+        if (locale.meridiemHour != null) {
+            return locale.meridiemHour(hour, meridiem);
+        } else if (locale.isPM != null) {
+            // Fallback
+            isPm = locale.isPM(meridiem);
+            if (isPm && hour < 12) {
+                hour += 12;
+            }
+            if (!isPm && hour === 12) {
+                hour = 0;
+            }
+            return hour;
+        } else {
+            // this is not supposed to happen
+            return hour;
+        }
+    }
+
+    // date from string and array of format strings
+    function configFromStringAndArray(config) {
+        var tempConfig,
+            bestMoment,
+            scoreToBeat,
+            i,
+            currentScore,
+            validFormatFound,
+            bestFormatIsValid = false,
+            configfLen = config._f.length;
+
+        if (configfLen === 0) {
+            getParsingFlags(config).invalidFormat = true;
+            config._d = new Date(NaN);
+            return;
+        }
+
+        for (i = 0; i < configfLen; i++) {
+            currentScore = 0;
+            validFormatFound = false;
+            tempConfig = copyConfig({}, config);
+            if (config._useUTC != null) {
+                tempConfig._useUTC = config._useUTC;
+            }
+            tempConfig._f = config._f[i];
+            configFromStringAndFormat(tempConfig);
+
+            if (isValid(tempConfig)) {
+                validFormatFound = true;
+            }
+
+            // if there is any input that was not parsed add a penalty for that format
+            currentScore += getParsingFlags(tempConfig).charsLeftOver;
+
+            //or tokens
+            currentScore += getParsingFlags(tempConfig).unusedTokens.length * 10;
+
+            getParsingFlags(tempConfig).score = currentScore;
+
+            if (!bestFormatIsValid) {
+                if (
+                    scoreToBeat == null ||
+                    currentScore < scoreToBeat ||
+                    validFormatFound
+                ) {
+                    scoreToBeat = currentScore;
+                    bestMoment = tempConfig;
+                    if (validFormatFound) {
+                        bestFormatIsValid = true;
+                    }
+                }
+            } else {
+                if (currentScore < scoreToBeat) {
+                    scoreToBeat = currentScore;
+                    bestMoment = tempConfig;
+                }
+            }
+        }
+
+        extend(config, bestMoment || tempConfig);
+    }
+
+    function configFromObject(config) {
+        if (config._d) {
+            return;
+        }
+
+        var i = normalizeObjectUnits(config._i),
+            dayOrDate = i.day === undefined ? i.date : i.day;
+        config._a = map(
+            [i.year, i.month, dayOrDate, i.hour, i.minute, i.second, i.millisecond],
+            function (obj) {
+                return obj && parseInt(obj, 10);
+            }
+        );
+
+        configFromArray(config);
+    }
+
+    function createFromConfig(config) {
+        var res = new Moment(checkOverflow(prepareConfig(config)));
+        if (res._nextDay) {
+            // Adding is smart enough around DST
+            res.add(1, 'd');
+            res._nextDay = undefined;
+        }
+
+        return res;
+    }
+
+    function prepareConfig(config) {
+        var input = config._i,
+            format = config._f;
+
+        config._locale = config._locale || getLocale(config._l);
+
+        if (input === null || (format === undefined && input === '')) {
+            return createInvalid({ nullInput: true });
+        }
+
+        if (typeof input === 'string') {
+            config._i = input = config._locale.preparse(input);
+        }
+
+        if (isMoment(input)) {
+            return new Moment(checkOverflow(input));
+        } else if (isDate(input)) {
+            config._d = input;
+        } else if (isArray(format)) {
+            configFromStringAndArray(config);
+        } else if (format) {
+            configFromStringAndFormat(config);
+        } else {
+            configFromInput(config);
+        }
+
+        if (!isValid(config)) {
+            config._d = null;
+        }
+
+        return config;
+    }
+
+    function configFromInput(config) {
+        var input = config._i;
+        if (isUndefined(input)) {
+            config._d = new Date(hooks.now());
+        } else if (isDate(input)) {
+            config._d = new Date(input.valueOf());
+        } else if (typeof input === 'string') {
+            configFromString(config);
+        } else if (isArray(input)) {
+            config._a = map(input.slice(0), function (obj) {
+                return parseInt(obj, 10);
+            });
+            configFromArray(config);
+        } else if (isObject(input)) {
+            configFromObject(config);
+        } else if (isNumber(input)) {
+            // from milliseconds
+            config._d = new Date(input);
+        } else {
+            hooks.createFromInputFallback(config);
+        }
+    }
+
+    function createLocalOrUTC(input, format, locale, strict, isUTC) {
+        var c = {};
+
+        if (format === true || format === false) {
+            strict = format;
+            format = undefined;
+        }
+
+        if (locale === true || locale === false) {
+            strict = locale;
+            locale = undefined;
+        }
+
+        if (
+            (isObject(input) && isObjectEmpty(input)) ||
+            (isArray(input) && input.length === 0)
+        ) {
+            input = undefined;
+        }
+        // object construction must be done this way.
+        // https://github.com/moment/moment/issues/1423
+        c._isAMomentObject = true;
+        c._useUTC = c._isUTC = isUTC;
+        c._l = locale;
+        c._i = input;
+        c._f = format;
+        c._strict = strict;
+
+        return createFromConfig(c);
+    }
+
+    function createLocal(input, format, locale, strict) {
+        return createLocalOrUTC(input, format, locale, strict, false);
+    }
+
+    var prototypeMin = deprecate(
+            'moment().min is deprecated, use moment.max instead. http://momentjs.com/guides/#/warnings/min-max/',
+            function () {
+                var other = createLocal.apply(null, arguments);
+                if (this.isValid() && other.isValid()) {
+                    return other < this ? this : other;
+                } else {
+                    return createInvalid();
+                }
+            }
+        ),
+        prototypeMax = deprecate(
+            'moment().max is deprecated, use moment.min instead. http://momentjs.com/guides/#/warnings/min-max/',
+            function () {
+                var other = createLocal.apply(null, arguments);
+                if (this.isValid() && other.isValid()) {
+                    return other > this ? this : other;
+                } else {
+                    return createInvalid();
+                }
+            }
+        );
+
+    // Pick a moment m from moments so that m[fn](other) is true for all
+    // other. This relies on the function fn to be transitive.
+    //
+    // moments should either be an array of moment objects or an array, whose
+    // first element is an array of moment objects.
+    function pickBy(fn, moments) {
+        var res, i;
+        if (moments.length === 1 && isArray(moments[0])) {
+            moments = moments[0];
+        }
+        if (!moments.length) {
+            return createLocal();
+        }
+        res = moments[0];
+        for (i = 1; i < moments.length; ++i) {
+            if (!moments[i].isValid() || moments[i][fn](res)) {
+                res = moments[i];
+            }
+        }
+        return res;
+    }
+
+    // TODO: Use [].sort instead?
+    function min() {
+        var args = [].slice.call(arguments, 0);
+
+        return pickBy('isBefore', args);
+    }
+
+    function max() {
+        var args = [].slice.call(arguments, 0);
+
+        return pickBy('isAfter', args);
+    }
+
+    var now = function () {
+        return Date.now ? Date.now() : +new Date();
+    };
+
+    var ordering = [
+        'year',
+        'quarter',
+        'month',
+        'week',
+        'day',
+        'hour',
+        'minute',
+        'second',
+        'millisecond',
+    ];
+
+    function isDurationValid(m) {
+        var key,
+            unitHasDecimal = false,
+            i,
+            orderLen = ordering.length;
+        for (key in m) {
+            if (
+                hasOwnProp(m, key) &&
+                !(
+                    indexOf.call(ordering, key) !== -1 &&
+                    (m[key] == null || !isNaN(m[key]))
+                )
+            ) {
+                return false;
+            }
+        }
+
+        for (i = 0; i < orderLen; ++i) {
+            if (m[ordering[i]]) {
+                if (unitHasDecimal) {
+                    return false; // only allow non-integers for smallest unit
+                }
+                if (parseFloat(m[ordering[i]]) !== toInt(m[ordering[i]])) {
+                    unitHasDecimal = true;
+                }
+            }
+        }
+
+        return true;
+    }
+
+    function isValid$1() {
+        return this._isValid;
+    }
+
+    function createInvalid$1() {
+        return createDuration(NaN);
+    }
+
+    function Duration(duration) {
+        var normalizedInput = normalizeObjectUnits(duration),
+            years = normalizedInput.year || 0,
+            quarters = normalizedInput.quarter || 0,
+            months = normalizedInput.month || 0,
+            weeks = normalizedInput.week || normalizedInput.isoWeek || 0,
+            days = normalizedInput.day || 0,
+            hours = normalizedInput.hour || 0,
+            minutes = normalizedInput.minute || 0,
+            seconds = normalizedInput.second || 0,
+            milliseconds = normalizedInput.millisecond || 0;
+
+        this._isValid = isDurationValid(normalizedInput);
+
+        // representation for dateAddRemove
+        this._milliseconds =
+            +milliseconds +
+            seconds * 1e3 + // 1000
+            minutes * 6e4 + // 1000 * 60
+            hours * 1000 * 60 * 60; //using 1000 * 60 * 60 instead of 36e5 to avoid floating point rounding errors https://github.com/moment/moment/issues/2978
+        // Because of dateAddRemove treats 24 hours as different from a
+        // day when working around DST, we need to store them separately
+        this._days = +days + weeks * 7;
+        // It is impossible to translate months into days without knowing
+        // which months you are are talking about, so we have to store
+        // it separately.
+        this._months = +months + quarters * 3 + years * 12;
+
+        this._data = {};
+
+        this._locale = getLocale();
+
+        this._bubble();
+    }
+
+    function isDuration(obj) {
+        return obj instanceof Duration;
+    }
+
+    function absRound(number) {
+        if (number < 0) {
+            return Math.round(-1 * number) * -1;
+        } else {
+            return Math.round(number);
+        }
+    }
+
+    // compare two arrays, return the number of differences
+    function compareArrays(array1, array2, dontConvert) {
+        var len = Math.min(array1.length, array2.length),
+            lengthDiff = Math.abs(array1.length - array2.length),
+            diffs = 0,
+            i;
+        for (i = 0; i < len; i++) {
+            if (
+                (dontConvert && array1[i] !== array2[i]) ||
+                (!dontConvert && toInt(array1[i]) !== toInt(array2[i]))
+            ) {
+                diffs++;
+            }
+        }
+        return diffs + lengthDiff;
+    }
+
+    // FORMATTING
+
+    function offset(token, separator) {
+        addFormatToken(token, 0, 0, function () {
+            var offset = this.utcOffset(),
+                sign = '+';
+            if (offset < 0) {
+                offset = -offset;
+                sign = '-';
+            }
+            return (
+                sign +
+                zeroFill(~~(offset / 60), 2) +
+                separator +
+                zeroFill(~~offset % 60, 2)
+            );
+        });
+    }
+
+    offset('Z', ':');
+    offset('ZZ', '');
+
+    // PARSING
+
+    addRegexToken('Z', matchShortOffset);
+    addRegexToken('ZZ', matchShortOffset);
+    addParseToken(['Z', 'ZZ'], function (input, array, config) {
+        config._useUTC = true;
+        config._tzm = offsetFromString(matchShortOffset, input);
+    });
+
+    // HELPERS
+
+    // timezone chunker
+    // '+10:00' > ['10',  '00']
+    // '-1530'  > ['-15', '30']
+    var chunkOffset = /([\+\-]|\d\d)/gi;
+
+    function offsetFromString(matcher, string) {
+        var matches = (string || '').match(matcher),
+            chunk,
+            parts,
+            minutes;
+
+        if (matches === null) {
+            return null;
+        }
+
+        chunk = matches[matches.length - 1] || [];
+        parts = (chunk + '').match(chunkOffset) || ['-', 0, 0];
+        minutes = +(parts[1] * 60) + toInt(parts[2]);
+
+        return minutes === 0 ? 0 : parts[0] === '+' ? minutes : -minutes;
+    }
+
+    // Return a moment from input, that is local/utc/zone equivalent to model.
+    function cloneWithOffset(input, model) {
+        var res, diff;
+        if (model._isUTC) {
+            res = model.clone();
+            diff =
+                (isMoment(input) || isDate(input)
+                    ? input.valueOf()
+                    : createLocal(input).valueOf()) - res.valueOf();
+            // Use low-level api, because this fn is low-level api.
+            res._d.setTime(res._d.valueOf() + diff);
+            hooks.updateOffset(res, false);
+            return res;
+        } else {
+            return createLocal(input).local();
+        }
+    }
+
+    function getDateOffset(m) {
+        // On Firefox.24 Date#getTimezoneOffset returns a floating point.
+        // https://github.com/moment/moment/pull/1871
+        return -Math.round(m._d.getTimezoneOffset());
+    }
+
+    // HOOKS
+
+    // This function will be called whenever a moment is mutated.
+    // It is intended to keep the offset in sync with the timezone.
+    hooks.updateOffset = function () {};
+
+    // MOMENTS
+
+    // keepLocalTime = true means only change the timezone, without
+    // affecting the local hour. So 5:31:26 +0300 --[utcOffset(2, true)]-->
+    // 5:31:26 +0200 It is possible that 5:31:26 doesn't exist with offset
+    // +0200, so we adjust the time as needed, to be valid.
+    //
+    // Keeping the time actually adds/subtracts (one hour)
+    // from the actual represented time. That is why we call updateOffset
+    // a second time. In case it wants us to change the offset again
+    // _changeInProgress == true case, then we have to adjust, because
+    // there is no such time in the given timezone.
+    function getSetOffset(input, keepLocalTime, keepMinutes) {
+        var offset = this._offset || 0,
+            localAdjust;
+        if (!this.isValid()) {
+            return input != null ? this : NaN;
+        }
+        if (input != null) {
+            if (typeof input === 'string') {
+                input = offsetFromString(matchShortOffset, input);
+                if (input === null) {
+                    return this;
+                }
+            } else if (Math.abs(input) < 16 && !keepMinutes) {
+                input = input * 60;
+            }
+            if (!this._isUTC && keepLocalTime) {
+                localAdjust = getDateOffset(this);
+            }
+            this._offset = input;
+            this._isUTC = true;
+            if (localAdjust != null) {
+                this.add(localAdjust, 'm');
+            }
+            if (offset !== input) {
+                if (!keepLocalTime || this._changeInProgress) {
+                    addSubtract(
+                        this,
+                        createDuration(input - offset, 'm'),
+                        1,
+                        false
+                    );
+                } else if (!this._changeInProgress) {
+                    this._changeInProgress = true;
+                    hooks.updateOffset(this, true);
+                    this._changeInProgress = null;
+                }
+            }
+            return this;
+        } else {
+            return this._isUTC ? offset : getDateOffset(this);
+        }
+    }
+
+    function getSetZone(input, keepLocalTime) {
+        if (input != null) {
+            if (typeof input !== 'string') {
+                input = -input;
+            }
+
+            this.utcOffset(input, keepLocalTime);
+
+            return this;
+        } else {
+            return -this.utcOffset();
+        }
+    }
+
+    function setOffsetToUTC(keepLocalTime) {
+        return this.utcOffset(0, keepLocalTime);
+    }
+
+    function setOffsetToLocal(keepLocalTime) {
+        if (this._isUTC) {
+            this.utcOffset(0, keepLocalTime);
+            this._isUTC = false;
+
+            if (keepLocalTime) {
+                this.subtract(getDateOffset(this), 'm');
+            }
+        }
+        return this;
+    }
+
+    function setOffsetToParsedOffset() {
+        if (this._tzm != null) {
+            this.utcOffset(this._tzm, false, true);
+        } else if (typeof this._i === 'string') {
+            var tZone = offsetFromString(matchOffset, this._i);
+            if (tZone != null) {
+                this.utcOffset(tZone);
+            } else {
+                this.utcOffset(0, true);
+            }
+        }
+        return this;
+    }
+
+    function hasAlignedHourOffset(input) {
+        if (!this.isValid()) {
+            return false;
+        }
+        input = input ? createLocal(input).utcOffset() : 0;
+
+        return (this.utcOffset() - input) % 60 === 0;
+    }
+
+    function isDaylightSavingTime() {
+        return (
+            this.utcOffset() > this.clone().month(0).utcOffset() ||
+            this.utcOffset() > this.clone().month(5).utcOffset()
+        );
+    }
+
+    function isDaylightSavingTimeShifted() {
+        if (!isUndefined(this._isDSTShifted)) {
+            return this._isDSTShifted;
+        }
+
+        var c = {},
+            other;
+
+        copyConfig(c, this);
+        c = prepareConfig(c);
+
+        if (c._a) {
+            other = c._isUTC ? createUTC(c._a) : createLocal(c._a);
+            this._isDSTShifted =
+                this.isValid() && compareArrays(c._a, other.toArray()) > 0;
+        } else {
+            this._isDSTShifted = false;
+        }
+
+        return this._isDSTShifted;
+    }
+
+    function isLocal() {
+        return this.isValid() ? !this._isUTC : false;
+    }
+
+    function isUtcOffset() {
+        return this.isValid() ? this._isUTC : false;
+    }
+
+    function isUtc() {
+        return this.isValid() ? this._isUTC && this._offset === 0 : false;
+    }
+
+    // ASP.NET json date format regex
+    var aspNetRegex = /^(-|\+)?(?:(\d*)[. ])?(\d+):(\d+)(?::(\d+)(\.\d*)?)?$/,
+        // from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html
+        // somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere
+        // and further modified to allow for strings containing both week and day
+        isoRegex =
+            /^(-|\+)?P(?:([-+]?[0-9,.]*)Y)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)W)?(?:([-+]?[0-9,.]*)D)?(?:T(?:([-+]?[0-9,.]*)H)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)S)?)?$/;
+
+    function createDuration(input, key) {
+        var duration = input,
+            // matching against regexp is expensive, do it on demand
+            match = null,
+            sign,
+            ret,
+            diffRes;
+
+        if (isDuration(input)) {
+            duration = {
+                ms: input._milliseconds,
+                d: input._days,
+                M: input._months,
+            };
+        } else if (isNumber(input) || !isNaN(+input)) {
+            duration = {};
+            if (key) {
+                duration[key] = +input;
+            } else {
+                duration.milliseconds = +input;
+            }
+        } else if ((match = aspNetRegex.exec(input))) {
+            sign = match[1] === '-' ? -1 : 1;
+            duration = {
+                y: 0,
+                d: toInt(match[DATE]) * sign,
+                h: toInt(match[HOUR]) * sign,
+                m: toInt(match[MINUTE]) * sign,
+                s: toInt(match[SECOND]) * sign,
+                ms: toInt(absRound(match[MILLISECOND] * 1000)) * sign, // the millisecond decimal point is included in the match
+            };
+        } else if ((match = isoRegex.exec(input))) {
+            sign = match[1] === '-' ? -1 : 1;
+            duration = {
+                y: parseIso(match[2], sign),
+                M: parseIso(match[3], sign),
+                w: parseIso(match[4], sign),
+                d: parseIso(match[5], sign),
+                h: parseIso(match[6], sign),
+                m: parseIso(match[7], sign),
+                s: parseIso(match[8], sign),
+            };
+        } else if (duration == null) {
+            // checks for null or undefined
+            duration = {};
+        } else if (
+            typeof duration === 'object' &&
+            ('from' in duration || 'to' in duration)
+        ) {
+            diffRes = momentsDifference(
+                createLocal(duration.from),
+                createLocal(duration.to)
+            );
+
+            duration = {};
+            duration.ms = diffRes.milliseconds;
+            duration.M = diffRes.months;
+        }
+
+        ret = new Duration(duration);
+
+        if (isDuration(input) && hasOwnProp(input, '_locale')) {
+            ret._locale = input._locale;
+        }
+
+        if (isDuration(input) && hasOwnProp(input, '_isValid')) {
+            ret._isValid = input._isValid;
+        }
+
+        return ret;
+    }
+
+    createDuration.fn = Duration.prototype;
+    createDuration.invalid = createInvalid$1;
+
+    function parseIso(inp, sign) {
+        // We'd normally use ~~inp for this, but unfortunately it also
+        // converts floats to ints.
+        // inp may be undefined, so careful calling replace on it.
+        var res = inp && parseFloat(inp.replace(',', '.'));
+        // apply sign while we're at it
+        return (isNaN(res) ? 0 : res) * sign;
+    }
+
+    function positiveMomentsDifference(base, other) {
+        var res = {};
+
+        res.months =
+            other.month() - base.month() + (other.year() - base.year()) * 12;
+        if (base.clone().add(res.months, 'M').isAfter(other)) {
+            --res.months;
+        }
+
+        res.milliseconds = +other - +base.clone().add(res.months, 'M');
+
+        return res;
+    }
+
+    function momentsDifference(base, other) {
+        var res;
+        if (!(base.isValid() && other.isValid())) {
+            return { milliseconds: 0, months: 0 };
+        }
+
+        other = cloneWithOffset(other, base);
+        if (base.isBefore(other)) {
+            res = positiveMomentsDifference(base, other);
+        } else {
+            res = positiveMomentsDifference(other, base);
+            res.milliseconds = -res.milliseconds;
+            res.months = -res.months;
+        }
+
+        return res;
+    }
+
+    // TODO: remove 'name' arg after deprecation is removed
+    function createAdder(direction, name) {
+        return function (val, period) {
+            var dur, tmp;
+            //invert the arguments, but complain about it
+            if (period !== null && !isNaN(+period)) {
+                deprecateSimple(
+                    name,
+                    'moment().' +
+                        name +
+                        '(period, number) is deprecated. Please use moment().' +
+                        name +
+                        '(number, period). ' +
+                        'See http://momentjs.com/guides/#/warnings/add-inverted-param/ for more info.'
+                );
+                tmp = val;
+                val = period;
+                period = tmp;
+            }
+
+            dur = createDuration(val, period);
+            addSubtract(this, dur, direction);
+            return this;
+        };
+    }
+
+    function addSubtract(mom, duration, isAdding, updateOffset) {
+        var milliseconds = duration._milliseconds,
+            days = absRound(duration._days),
+            months = absRound(duration._months);
+
+        if (!mom.isValid()) {
+            // No op
+            return;
+        }
+
+        updateOffset = updateOffset == null ? true : updateOffset;
+
+        if (months) {
+            setMonth(mom, get(mom, 'Month') + months * isAdding);
+        }
+        if (days) {
+            set$1(mom, 'Date', get(mom, 'Date') + days * isAdding);
+        }
+        if (milliseconds) {
+            mom._d.setTime(mom._d.valueOf() + milliseconds * isAdding);
+        }
+        if (updateOffset) {
+            hooks.updateOffset(mom, days || months);
+        }
+    }
+
+    var add = createAdder(1, 'add'),
+        subtract = createAdder(-1, 'subtract');
+
+    function isString(input) {
+        return typeof input === 'string' || input instanceof String;
+    }
+
+    // type MomentInput = Moment | Date | string | number | (number | string)[] | MomentInputObject | void; // null | undefined
+    function isMomentInput(input) {
+        return (
+            isMoment(input) ||
+            isDate(input) ||
+            isString(input) ||
+            isNumber(input) ||
+            isNumberOrStringArray(input) ||
+            isMomentInputObject(input) ||
+            input === null ||
+            input === undefined
+        );
+    }
+
+    function isMomentInputObject(input) {
+        var objectTest = isObject(input) && !isObjectEmpty(input),
+            propertyTest = false,
+            properties = [
+                'years',
+                'year',
+                'y',
+                'months',
+                'month',
+                'M',
+                'days',
+                'day',
+                'd',
+                'dates',
+                'date',
+                'D',
+                'hours',
+                'hour',
+                'h',
+                'minutes',
+                'minute',
+                'm',
+                'seconds',
+                'second',
+                's',
+                'milliseconds',
+                'millisecond',
+                'ms',
+            ],
+            i,
+            property,
+            propertyLen = properties.length;
+
+        for (i = 0; i < propertyLen; i += 1) {
+            property = properties[i];
+            propertyTest = propertyTest || hasOwnProp(input, property);
+        }
+
+        return objectTest && propertyTest;
+    }
+
+    function isNumberOrStringArray(input) {
+        var arrayTest = isArray(input),
+            dataTypeTest = false;
+        if (arrayTest) {
+            dataTypeTest =
+                input.filter(function (item) {
+                    return !isNumber(item) && isString(input);
+                }).length === 0;
+        }
+        return arrayTest && dataTypeTest;
+    }
+
+    function isCalendarSpec(input) {
+        var objectTest = isObject(input) && !isObjectEmpty(input),
+            propertyTest = false,
+            properties = [
+                'sameDay',
+                'nextDay',
+                'lastDay',
+                'nextWeek',
+                'lastWeek',
+                'sameElse',
+            ],
+            i,
+            property;
+
+        for (i = 0; i < properties.length; i += 1) {
+            property = properties[i];
+            propertyTest = propertyTest || hasOwnProp(input, property);
+        }
+
+        return objectTest && propertyTest;
+    }
+
+    function getCalendarFormat(myMoment, now) {
+        var diff = myMoment.diff(now, 'days', true);
+        return diff < -6
+            ? 'sameElse'
+            : diff < -1
+              ? 'lastWeek'
+              : diff < 0
+                ? 'lastDay'
+                : diff < 1
+                  ? 'sameDay'
+                  : diff < 2
+                    ? 'nextDay'
+                    : diff < 7
+                      ? 'nextWeek'
+                      : 'sameElse';
+    }
+
+    function calendar$1(time, formats) {
+        // Support for single parameter, formats only overload to the calendar function
+        if (arguments.length === 1) {
+            if (!arguments[0]) {
+                time = undefined;
+                formats = undefined;
+            } else if (isMomentInput(arguments[0])) {
+                time = arguments[0];
+                formats = undefined;
+            } else if (isCalendarSpec(arguments[0])) {
+                formats = arguments[0];
+                time = undefined;
+            }
+        }
+        // We want to compare the start of today, vs this.
+        // Getting start-of-today depends on whether we're local/utc/offset or not.
+        var now = time || createLocal(),
+            sod = cloneWithOffset(now, this).startOf('day'),
+            format = hooks.calendarFormat(this, sod) || 'sameElse',
+            output =
+                formats &&
+                (isFunction(formats[format])
+                    ? formats[format].call(this, now)
+                    : formats[format]);
+
+        return this.format(
+            output || this.localeData().calendar(format, this, createLocal(now))
+        );
+    }
+
+    function clone() {
+        return new Moment(this);
+    }
+
+    function isAfter(input, units) {
+        var localInput = isMoment(input) ? input : createLocal(input);
+        if (!(this.isValid() && localInput.isValid())) {
+            return false;
+        }
+        units = normalizeUnits(units) || 'millisecond';
+        if (units === 'millisecond') {
+            return this.valueOf() > localInput.valueOf();
+        } else {
+            return localInput.valueOf() < this.clone().startOf(units).valueOf();
+        }
+    }
+
+    function isBefore(input, units) {
+        var localInput = isMoment(input) ? input : createLocal(input);
+        if (!(this.isValid() && localInput.isValid())) {
+            return false;
+        }
+        units = normalizeUnits(units) || 'millisecond';
+        if (units === 'millisecond') {
+            return this.valueOf() < localInput.valueOf();
+        } else {
+            return this.clone().endOf(units).valueOf() < localInput.valueOf();
+        }
+    }
+
+    function isBetween(from, to, units, inclusivity) {
+        var localFrom = isMoment(from) ? from : createLocal(from),
+            localTo = isMoment(to) ? to : createLocal(to);
+        if (!(this.isValid() && localFrom.isValid() && localTo.isValid())) {
+            return false;
+        }
+        inclusivity = inclusivity || '()';
+        return (
+            (inclusivity[0] === '('
+                ? this.isAfter(localFrom, units)
+                : !this.isBefore(localFrom, units)) &&
+            (inclusivity[1] === ')'
+                ? this.isBefore(localTo, units)
+                : !this.isAfter(localTo, units))
+        );
+    }
+
+    function isSame(input, units) {
+        var localInput = isMoment(input) ? input : createLocal(input),
+            inputMs;
+        if (!(this.isValid() && localInput.isValid())) {
+            return false;
+        }
+        units = normalizeUnits(units) || 'millisecond';
+        if (units === 'millisecond') {
+            return this.valueOf() === localInput.valueOf();
+        } else {
+            inputMs = localInput.valueOf();
+            return (
+                this.clone().startOf(units).valueOf() <= inputMs &&
+                inputMs <= this.clone().endOf(units).valueOf()
+            );
+        }
+    }
+
+    function isSameOrAfter(input, units) {
+        return this.isSame(input, units) || this.isAfter(input, units);
+    }
+
+    function isSameOrBefore(input, units) {
+        return this.isSame(input, units) || this.isBefore(input, units);
+    }
+
+    function diff(input, units, asFloat) {
+        var that, zoneDelta, output;
+
+        if (!this.isValid()) {
+            return NaN;
+        }
+
+        that = cloneWithOffset(input, this);
+
+        if (!that.isValid()) {
+            return NaN;
+        }
+
+        zoneDelta = (that.utcOffset() - this.utcOffset()) * 6e4;
+
+        units = normalizeUnits(units);
+
+        switch (units) {
+            case 'year':
+                output = monthDiff(this, that) / 12;
+                break;
+            case 'month':
+                output = monthDiff(this, that);
+                break;
+            case 'quarter':
+                output = monthDiff(this, that) / 3;
+                break;
+            case 'second':
+                output = (this - that) / 1e3;
+                break; // 1000
+            case 'minute':
+                output = (this - that) / 6e4;
+                break; // 1000 * 60
+            case 'hour':
+                output = (this - that) / 36e5;
+                break; // 1000 * 60 * 60
+            case 'day':
+                output = (this - that - zoneDelta) / 864e5;
+                break; // 1000 * 60 * 60 * 24, negate dst
+            case 'week':
+                output = (this - that - zoneDelta) / 6048e5;
+                break; // 1000 * 60 * 60 * 24 * 7, negate dst
+            default:
+                output = this - that;
+        }
+
+        return asFloat ? output : absFloor(output);
+    }
+
+    function monthDiff(a, b) {
+        if (a.date() < b.date()) {
+            // end-of-month calculations work correct when the start month has more
+            // days than the end month.
+            return -monthDiff(b, a);
+        }
+        // difference in months
+        var wholeMonthDiff = (b.year() - a.year()) * 12 + (b.month() - a.month()),
+            // b is in (anchor - 1 month, anchor + 1 month)
+            anchor = a.clone().add(wholeMonthDiff, 'months'),
+            anchor2,
+            adjust;
+
+        if (b - anchor < 0) {
+            anchor2 = a.clone().add(wholeMonthDiff - 1, 'months');
+            // linear across the month
+            adjust = (b - anchor) / (anchor - anchor2);
+        } else {
+            anchor2 = a.clone().add(wholeMonthDiff + 1, 'months');
+            // linear across the month
+            adjust = (b - anchor) / (anchor2 - anchor);
+        }
+
+        //check for negative zero, return zero if negative zero
+        return -(wholeMonthDiff + adjust) || 0;
+    }
+
+    hooks.defaultFormat = 'YYYY-MM-DDTHH:mm:ssZ';
+    hooks.defaultFormatUtc = 'YYYY-MM-DDTHH:mm:ss[Z]';
+
+    function toString() {
+        return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ');
+    }
+
+    function toISOString(keepOffset) {
+        if (!this.isValid()) {
+            return null;
+        }
+        var utc = keepOffset !== true,
+            m = utc ? this.clone().utc() : this;
+        if (m.year() < 0 || m.year() > 9999) {
+            return formatMoment(
+                m,
+                utc
+                    ? 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]'
+                    : 'YYYYYY-MM-DD[T]HH:mm:ss.SSSZ'
+            );
+        }
+        if (isFunction(Date.prototype.toISOString)) {
+            // native implementation is ~50x faster, use it when we can
+            if (utc) {
+                return this.toDate().toISOString();
+            } else {
+                return new Date(this.valueOf() + this.utcOffset() * 60 * 1000)
+                    .toISOString()
+                    .replace('Z', formatMoment(m, 'Z'));
+            }
+        }
+        return formatMoment(
+            m,
+            utc ? 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYY-MM-DD[T]HH:mm:ss.SSSZ'
+        );
+    }
+
+    /**
+     * Return a human readable representation of a moment that can
+     * also be evaluated to get a new moment which is the same
+     *
+     * @link https://nodejs.org/dist/latest/docs/api/util.html#util_custom_inspect_function_on_objects
+     */
+    function inspect() {
+        if (!this.isValid()) {
+            return 'moment.invalid(/* ' + this._i + ' */)';
+        }
+        var func = 'moment',
+            zone = '',
+            prefix,
+            year,
+            datetime,
+            suffix;
+        if (!this.isLocal()) {
+            func = this.utcOffset() === 0 ? 'moment.utc' : 'moment.parseZone';
+            zone = 'Z';
+        }
+        prefix = '[' + func + '("]';
+        year = 0 <= this.year() && this.year() <= 9999 ? 'YYYY' : 'YYYYYY';
+        datetime = '-MM-DD[T]HH:mm:ss.SSS';
+        suffix = zone + '[")]';
+
+        return this.format(prefix + year + datetime + suffix);
+    }
+
+    function format(inputString) {
+        if (!inputString) {
+            inputString = this.isUtc()
+                ? hooks.defaultFormatUtc
+                : hooks.defaultFormat;
+        }
+        var output = formatMoment(this, inputString);
+        return this.localeData().postformat(output);
+    }
+
+    function from(time, withoutSuffix) {
+        if (
+            this.isValid() &&
+            ((isMoment(time) && time.isValid()) || createLocal(time).isValid())
+        ) {
+            return createDuration({ to: this, from: time })
+                .locale(this.locale())
+                .humanize(!withoutSuffix);
+        } else {
+            return this.localeData().invalidDate();
+        }
+    }
+
+    function fromNow(withoutSuffix) {
+        return this.from(createLocal(), withoutSuffix);
+    }
+
+    function to(time, withoutSuffix) {
+        if (
+            this.isValid() &&
+            ((isMoment(time) && time.isValid()) || createLocal(time).isValid())
+        ) {
+            return createDuration({ from: this, to: time })
+                .locale(this.locale())
+                .humanize(!withoutSuffix);
+        } else {
+            return this.localeData().invalidDate();
+        }
+    }
+
+    function toNow(withoutSuffix) {
+        return this.to(createLocal(), withoutSuffix);
+    }
+
+    // If passed a locale key, it will set the locale for this
+    // instance.  Otherwise, it will return the locale configuration
+    // variables for this instance.
+    function locale(key) {
+        var newLocaleData;
+
+        if (key === undefined) {
+            return this._locale._abbr;
+        } else {
+            newLocaleData = getLocale(key);
+            if (newLocaleData != null) {
+                this._locale = newLocaleData;
+            }
+            return this;
+        }
+    }
+
+    var lang = deprecate(
+        'moment().lang() is deprecated. Instead, use moment().localeData() to get the language configuration. Use moment().locale() to change languages.',
+        function (key) {
+            if (key === undefined) {
+                return this.localeData();
+            } else {
+                return this.locale(key);
+            }
+        }
+    );
+
+    function localeData() {
+        return this._locale;
+    }
+
+    var MS_PER_SECOND = 1000,
+        MS_PER_MINUTE = 60 * MS_PER_SECOND,
+        MS_PER_HOUR = 60 * MS_PER_MINUTE,
+        MS_PER_400_YEARS = (365 * 400 + 97) * 24 * MS_PER_HOUR;
+
+    // actual modulo - handles negative numbers (for dates before 1970):
+    function mod$1(dividend, divisor) {
+        return ((dividend % divisor) + divisor) % divisor;
+    }
+
+    function localStartOfDate(y, m, d) {
+        // the date constructor remaps years 0-99 to 1900-1999
+        if (y < 100 && y >= 0) {
+            // preserve leap years using a full 400 year cycle, then reset
+            return new Date(y + 400, m, d) - MS_PER_400_YEARS;
+        } else {
+            return new Date(y, m, d).valueOf();
+        }
+    }
+
+    function utcStartOfDate(y, m, d) {
+        // Date.UTC remaps years 0-99 to 1900-1999
+        if (y < 100 && y >= 0) {
+            // preserve leap years using a full 400 year cycle, then reset
+            return Date.UTC(y + 400, m, d) - MS_PER_400_YEARS;
+        } else {
+            return Date.UTC(y, m, d);
+        }
+    }
+
+    function startOf(units) {
+        var time, startOfDate;
+        units = normalizeUnits(units);
+        if (units === undefined || units === 'millisecond' || !this.isValid()) {
+            return this;
+        }
+
+        startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;
+
+        switch (units) {
+            case 'year':
+                time = startOfDate(this.year(), 0, 1);
+                break;
+            case 'quarter':
+                time = startOfDate(
+                    this.year(),
+                    this.month() - (this.month() % 3),
+                    1
+                );
+                break;
+            case 'month':
+                time = startOfDate(this.year(), this.month(), 1);
+                break;
+            case 'week':
+                time = startOfDate(
+                    this.year(),
+                    this.month(),
+                    this.date() - this.weekday()
+                );
+                break;
+            case 'isoWeek':
+                time = startOfDate(
+                    this.year(),
+                    this.month(),
+                    this.date() - (this.isoWeekday() - 1)
+                );
+                break;
+            case 'day':
+            case 'date':
+                time = startOfDate(this.year(), this.month(), this.date());
+                break;
+            case 'hour':
+                time = this._d.valueOf();
+                time -= mod$1(
+                    time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE),
+                    MS_PER_HOUR
+                );
+                break;
+            case 'minute':
+                time = this._d.valueOf();
+                time -= mod$1(time, MS_PER_MINUTE);
+                break;
+            case 'second':
+                time = this._d.valueOf();
+                time -= mod$1(time, MS_PER_SECOND);
+                break;
+        }
+
+        this._d.setTime(time);
+        hooks.updateOffset(this, true);
+        return this;
+    }
+
+    function endOf(units) {
+        var time, startOfDate;
+        units = normalizeUnits(units);
+        if (units === undefined || units === 'millisecond' || !this.isValid()) {
+            return this;
+        }
+
+        startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;
+
+        switch (units) {
+            case 'year':
+                time = startOfDate(this.year() + 1, 0, 1) - 1;
+                break;
+            case 'quarter':
+                time =
+                    startOfDate(
+                        this.year(),
+                        this.month() - (this.month() % 3) + 3,
+                        1
+                    ) - 1;
+                break;
+            case 'month':
+                time = startOfDate(this.year(), this.month() + 1, 1) - 1;
+                break;
+            case 'week':
+                time =
+                    startOfDate(
+                        this.year(),
+                        this.month(),
+                        this.date() - this.weekday() + 7
+                    ) - 1;
+                break;
+            case 'isoWeek':
+                time =
+                    startOfDate(
+                        this.year(),
+                        this.month(),
+                        this.date() - (this.isoWeekday() - 1) + 7
+                    ) - 1;
+                break;
+            case 'day':
+            case 'date':
+                time = startOfDate(this.year(), this.month(), this.date() + 1) - 1;
+                break;
+            case 'hour':
+                time = this._d.valueOf();
+                time +=
+                    MS_PER_HOUR -
+                    mod$1(
+                        time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE),
+                        MS_PER_HOUR
+                    ) -
+                    1;
+                break;
+            case 'minute':
+                time = this._d.valueOf();
+                time += MS_PER_MINUTE - mod$1(time, MS_PER_MINUTE) - 1;
+                break;
+            case 'second':
+                time = this._d.valueOf();
+                time += MS_PER_SECOND - mod$1(time, MS_PER_SECOND) - 1;
+                break;
+        }
+
+        this._d.setTime(time);
+        hooks.updateOffset(this, true);
+        return this;
+    }
+
+    function valueOf() {
+        return this._d.valueOf() - (this._offset || 0) * 60000;
+    }
+
+    function unix() {
+        return Math.floor(this.valueOf() / 1000);
+    }
+
+    function toDate() {
+        return new Date(this.valueOf());
+    }
+
+    function toArray() {
+        var m = this;
+        return [
+            m.year(),
+            m.month(),
+            m.date(),
+            m.hour(),
+            m.minute(),
+            m.second(),
+            m.millisecond(),
+        ];
+    }
+
+    function toObject() {
+        var m = this;
+        return {
+            years: m.year(),
+            months: m.month(),
+            date: m.date(),
+            hours: m.hours(),
+            minutes: m.minutes(),
+            seconds: m.seconds(),
+            milliseconds: m.milliseconds(),
+        };
+    }
+
+    function toJSON() {
+        // new Date(NaN).toJSON() === null
+        return this.isValid() ? this.toISOString() : null;
+    }
+
+    function isValid$2() {
+        return isValid(this);
+    }
+
+    function parsingFlags() {
+        return extend({}, getParsingFlags(this));
+    }
+
+    function invalidAt() {
+        return getParsingFlags(this).overflow;
+    }
+
+    function creationData() {
+        return {
+            input: this._i,
+            format: this._f,
+            locale: this._locale,
+            isUTC: this._isUTC,
+            strict: this._strict,
+        };
+    }
+
+    addFormatToken('N', 0, 0, 'eraAbbr');
+    addFormatToken('NN', 0, 0, 'eraAbbr');
+    addFormatToken('NNN', 0, 0, 'eraAbbr');
+    addFormatToken('NNNN', 0, 0, 'eraName');
+    addFormatToken('NNNNN', 0, 0, 'eraNarrow');
+
+    addFormatToken('y', ['y', 1], 'yo', 'eraYear');
+    addFormatToken('y', ['yy', 2], 0, 'eraYear');
+    addFormatToken('y', ['yyy', 3], 0, 'eraYear');
+    addFormatToken('y', ['yyyy', 4], 0, 'eraYear');
+
+    addRegexToken('N', matchEraAbbr);
+    addRegexToken('NN', matchEraAbbr);
+    addRegexToken('NNN', matchEraAbbr);
+    addRegexToken('NNNN', matchEraName);
+    addRegexToken('NNNNN', matchEraNarrow);
+
+    addParseToken(
+        ['N', 'NN', 'NNN', 'NNNN', 'NNNNN'],
+        function (input, array, config, token) {
+            var era = config._locale.erasParse(input, token, config._strict);
+            if (era) {
+                getParsingFlags(config).era = era;
+            } else {
+                getParsingFlags(config).invalidEra = input;
+            }
+        }
+    );
+
+    addRegexToken('y', matchUnsigned);
+    addRegexToken('yy', matchUnsigned);
+    addRegexToken('yyy', matchUnsigned);
+    addRegexToken('yyyy', matchUnsigned);
+    addRegexToken('yo', matchEraYearOrdinal);
+
+    addParseToken(['y', 'yy', 'yyy', 'yyyy'], YEAR);
+    addParseToken(['yo'], function (input, array, config, token) {
+        var match;
+        if (config._locale._eraYearOrdinalRegex) {
+            match = input.match(config._locale._eraYearOrdinalRegex);
+        }
+
+        if (config._locale.eraYearOrdinalParse) {
+            array[YEAR] = config._locale.eraYearOrdinalParse(input, match);
+        } else {
+            array[YEAR] = parseInt(input, 10);
+        }
+    });
+
+    function localeEras(m, format) {
+        var i,
+            l,
+            date,
+            eras = this._eras || getLocale('en')._eras;
+        for (i = 0, l = eras.length; i < l; ++i) {
+            switch (typeof eras[i].since) {
+                case 'string':
+                    // truncate time
+                    date = hooks(eras[i].since).startOf('day');
+                    eras[i].since = date.valueOf();
+                    break;
+            }
+
+            switch (typeof eras[i].until) {
+                case 'undefined':
+                    eras[i].until = +Infinity;
+                    break;
+                case 'string':
+                    // truncate time
+                    date = hooks(eras[i].until).startOf('day').valueOf();
+                    eras[i].until = date.valueOf();
+                    break;
+            }
+        }
+        return eras;
+    }
+
+    function localeErasParse(eraName, format, strict) {
+        var i,
+            l,
+            eras = this.eras(),
+            name,
+            abbr,
+            narrow;
+        eraName = eraName.toUpperCase();
+
+        for (i = 0, l = eras.length; i < l; ++i) {
+            name = eras[i].name.toUpperCase();
+            abbr = eras[i].abbr.toUpperCase();
+            narrow = eras[i].narrow.toUpperCase();
+
+            if (strict) {
+                switch (format) {
+                    case 'N':
+                    case 'NN':
+                    case 'NNN':
+                        if (abbr === eraName) {
+                            return eras[i];
+                        }
+                        break;
+
+                    case 'NNNN':
+                        if (name === eraName) {
+                            return eras[i];
+                        }
+                        break;
+
+                    case 'NNNNN':
+                        if (narrow === eraName) {
+                            return eras[i];
+                        }
+                        break;
+                }
+            } else if ([name, abbr, narrow].indexOf(eraName) >= 0) {
+                return eras[i];
+            }
+        }
+    }
+
+    function localeErasConvertYear(era, year) {
+        var dir = era.since <= era.until ? +1 : -1;
+        if (year === undefined) {
+            return hooks(era.since).year();
+        } else {
+            return hooks(era.since).year() + (year - era.offset) * dir;
+        }
+    }
+
+    function getEraName() {
+        var i,
+            l,
+            val,
+            eras = this.localeData().eras();
+        for (i = 0, l = eras.length; i < l; ++i) {
+            // truncate time
+            val = this.clone().startOf('day').valueOf();
+
+            if (eras[i].since <= val && val <= eras[i].until) {
+                return eras[i].name;
+            }
+            if (eras[i].until <= val && val <= eras[i].since) {
+                return eras[i].name;
+            }
+        }
+
+        return '';
+    }
+
+    function getEraNarrow() {
+        var i,
+            l,
+            val,
+            eras = this.localeData().eras();
+        for (i = 0, l = eras.length; i < l; ++i) {
+            // truncate time
+            val = this.clone().startOf('day').valueOf();
+
+            if (eras[i].since <= val && val <= eras[i].until) {
+                return eras[i].narrow;
+            }
+            if (eras[i].until <= val && val <= eras[i].since) {
+                return eras[i].narrow;
+            }
+        }
+
+        return '';
+    }
+
+    function getEraAbbr() {
+        var i,
+            l,
+            val,
+            eras = this.localeData().eras();
+        for (i = 0, l = eras.length; i < l; ++i) {
+            // truncate time
+            val = this.clone().startOf('day').valueOf();
+
+            if (eras[i].since <= val && val <= eras[i].until) {
+                return eras[i].abbr;
+            }
+            if (eras[i].until <= val && val <= eras[i].since) {
+                return eras[i].abbr;
+            }
+        }
+
+        return '';
+    }
+
+    function getEraYear() {
+        var i,
+            l,
+            dir,
+            val,
+            eras = this.localeData().eras();
+        for (i = 0, l = eras.length; i < l; ++i) {
+            dir = eras[i].since <= eras[i].until ? +1 : -1;
+
+            // truncate time
+            val = this.clone().startOf('day').valueOf();
+
+            if (
+                (eras[i].since <= val && val <= eras[i].until) ||
+                (eras[i].until <= val && val <= eras[i].since)
+            ) {
+                return (
+                    (this.year() - hooks(eras[i].since).year()) * dir +
+                    eras[i].offset
+                );
+            }
+        }
+
+        return this.year();
+    }
+
+    function erasNameRegex(isStrict) {
+        if (!hasOwnProp(this, '_erasNameRegex')) {
+            computeErasParse.call(this);
+        }
+        return isStrict ? this._erasNameRegex : this._erasRegex;
+    }
+
+    function erasAbbrRegex(isStrict) {
+        if (!hasOwnProp(this, '_erasAbbrRegex')) {
+            computeErasParse.call(this);
+        }
+        return isStrict ? this._erasAbbrRegex : this._erasRegex;
+    }
+
+    function erasNarrowRegex(isStrict) {
+        if (!hasOwnProp(this, '_erasNarrowRegex')) {
+            computeErasParse.call(this);
+        }
+        return isStrict ? this._erasNarrowRegex : this._erasRegex;
+    }
+
+    function matchEraAbbr(isStrict, locale) {
+        return locale.erasAbbrRegex(isStrict);
+    }
+
+    function matchEraName(isStrict, locale) {
+        return locale.erasNameRegex(isStrict);
+    }
+
+    function matchEraNarrow(isStrict, locale) {
+        return locale.erasNarrowRegex(isStrict);
+    }
+
+    function matchEraYearOrdinal(isStrict, locale) {
+        return locale._eraYearOrdinalRegex || matchUnsigned;
+    }
+
+    function computeErasParse() {
+        var abbrPieces = [],
+            namePieces = [],
+            narrowPieces = [],
+            mixedPieces = [],
+            i,
+            l,
+            erasName,
+            erasAbbr,
+            erasNarrow,
+            eras = this.eras();
+
+        for (i = 0, l = eras.length; i < l; ++i) {
+            erasName = regexEscape(eras[i].name);
+            erasAbbr = regexEscape(eras[i].abbr);
+            erasNarrow = regexEscape(eras[i].narrow);
+
+            namePieces.push(erasName);
+            abbrPieces.push(erasAbbr);
+            narrowPieces.push(erasNarrow);
+            mixedPieces.push(erasName);
+            mixedPieces.push(erasAbbr);
+            mixedPieces.push(erasNarrow);
+        }
+
+        this._erasRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
+        this._erasNameRegex = new RegExp('^(' + namePieces.join('|') + ')', 'i');
+        this._erasAbbrRegex = new RegExp('^(' + abbrPieces.join('|') + ')', 'i');
+        this._erasNarrowRegex = new RegExp(
+            '^(' + narrowPieces.join('|') + ')',
+            'i'
+        );
+    }
+
+    // FORMATTING
+
+    addFormatToken(0, ['gg', 2], 0, function () {
+        return this.weekYear() % 100;
+    });
+
+    addFormatToken(0, ['GG', 2], 0, function () {
+        return this.isoWeekYear() % 100;
+    });
+
+    function addWeekYearFormatToken(token, getter) {
+        addFormatToken(0, [token, token.length], 0, getter);
+    }
+
+    addWeekYearFormatToken('gggg', 'weekYear');
+    addWeekYearFormatToken('ggggg', 'weekYear');
+    addWeekYearFormatToken('GGGG', 'isoWeekYear');
+    addWeekYearFormatToken('GGGGG', 'isoWeekYear');
+
+    // ALIASES
+
+    // PARSING
+
+    addRegexToken('G', matchSigned);
+    addRegexToken('g', matchSigned);
+    addRegexToken('GG', match1to2, match2);
+    addRegexToken('gg', match1to2, match2);
+    addRegexToken('GGGG', match1to4, match4);
+    addRegexToken('gggg', match1to4, match4);
+    addRegexToken('GGGGG', match1to6, match6);
+    addRegexToken('ggggg', match1to6, match6);
+
+    addWeekParseToken(
+        ['gggg', 'ggggg', 'GGGG', 'GGGGG'],
+        function (input, week, config, token) {
+            week[token.substr(0, 2)] = toInt(input);
+        }
+    );
+
+    addWeekParseToken(['gg', 'GG'], function (input, week, config, token) {
+        week[token] = hooks.parseTwoDigitYear(input);
+    });
+
+    // MOMENTS
+
+    function getSetWeekYear(input) {
+        return getSetWeekYearHelper.call(
+            this,
+            input,
+            this.week(),
+            this.weekday() + this.localeData()._week.dow,
+            this.localeData()._week.dow,
+            this.localeData()._week.doy
+        );
+    }
+
+    function getSetISOWeekYear(input) {
+        return getSetWeekYearHelper.call(
+            this,
+            input,
+            this.isoWeek(),
+            this.isoWeekday(),
+            1,
+            4
+        );
+    }
+
+    function getISOWeeksInYear() {
+        return weeksInYear(this.year(), 1, 4);
+    }
+
+    function getISOWeeksInISOWeekYear() {
+        return weeksInYear(this.isoWeekYear(), 1, 4);
+    }
+
+    function getWeeksInYear() {
+        var weekInfo = this.localeData()._week;
+        return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy);
+    }
+
+    function getWeeksInWeekYear() {
+        var weekInfo = this.localeData()._week;
+        return weeksInYear(this.weekYear(), weekInfo.dow, weekInfo.doy);
+    }
+
+    function getSetWeekYearHelper(input, week, weekday, dow, doy) {
+        var weeksTarget;
+        if (input == null) {
+            return weekOfYear(this, dow, doy).year;
+        } else {
+            weeksTarget = weeksInYear(input, dow, doy);
+            if (week > weeksTarget) {
+                week = weeksTarget;
+            }
+            return setWeekAll.call(this, input, week, weekday, dow, doy);
+        }
+    }
+
+    function setWeekAll(weekYear, week, weekday, dow, doy) {
+        var dayOfYearData = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy),
+            date = createUTCDate(dayOfYearData.year, 0, dayOfYearData.dayOfYear);
+
+        this.year(date.getUTCFullYear());
+        this.month(date.getUTCMonth());
+        this.date(date.getUTCDate());
+        return this;
+    }
+
+    // FORMATTING
+
+    addFormatToken('Q', 0, 'Qo', 'quarter');
+
+    // PARSING
+
+    addRegexToken('Q', match1);
+    addParseToken('Q', function (input, array) {
+        array[MONTH] = (toInt(input) - 1) * 3;
+    });
+
+    // MOMENTS
+
+    function getSetQuarter(input) {
+        return input == null
+            ? Math.ceil((this.month() + 1) / 3)
+            : this.month((input - 1) * 3 + (this.month() % 3));
+    }
+
+    // FORMATTING
+
+    addFormatToken('D', ['DD', 2], 'Do', 'date');
+
+    // PARSING
+
+    addRegexToken('D', match1to2, match1to2NoLeadingZero);
+    addRegexToken('DD', match1to2, match2);
+    addRegexToken('Do', function (isStrict, locale) {
+        // TODO: Remove "ordinalParse" fallback in next major release.
+        return isStrict
+            ? locale._dayOfMonthOrdinalParse || locale._ordinalParse
+            : locale._dayOfMonthOrdinalParseLenient;
+    });
+
+    addParseToken(['D', 'DD'], DATE);
+    addParseToken('Do', function (input, array) {
+        array[DATE] = toInt(input.match(match1to2)[0]);
+    });
+
+    // MOMENTS
+
+    var getSetDayOfMonth = makeGetSet('Date', true);
+
+    // FORMATTING
+
+    addFormatToken('DDD', ['DDDD', 3], 'DDDo', 'dayOfYear');
+
+    // PARSING
+
+    addRegexToken('DDD', match1to3);
+    addRegexToken('DDDD', match3);
+    addParseToken(['DDD', 'DDDD'], function (input, array, config) {
+        config._dayOfYear = toInt(input);
+    });
+
+    // HELPERS
+
+    // MOMENTS
+
+    function getSetDayOfYear(input) {
+        var dayOfYear =
+            Math.round(
+                (this.clone().startOf('day') - this.clone().startOf('year')) / 864e5
+            ) + 1;
+        return input == null ? dayOfYear : this.add(input - dayOfYear, 'd');
+    }
+
+    // FORMATTING
+
+    addFormatToken('m', ['mm', 2], 0, 'minute');
+
+    // PARSING
+
+    addRegexToken('m', match1to2, match1to2HasZero);
+    addRegexToken('mm', match1to2, match2);
+    addParseToken(['m', 'mm'], MINUTE);
+
+    // MOMENTS
+
+    var getSetMinute = makeGetSet('Minutes', false);
+
+    // FORMATTING
+
+    addFormatToken('s', ['ss', 2], 0, 'second');
+
+    // PARSING
+
+    addRegexToken('s', match1to2, match1to2HasZero);
+    addRegexToken('ss', match1to2, match2);
+    addParseToken(['s', 'ss'], SECOND);
+
+    // MOMENTS
+
+    var getSetSecond = makeGetSet('Seconds', false);
+
+    // FORMATTING
+
+    addFormatToken('S', 0, 0, function () {
+        return ~~(this.millisecond() / 100);
+    });
+
+    addFormatToken(0, ['SS', 2], 0, function () {
+        return ~~(this.millisecond() / 10);
+    });
+
+    addFormatToken(0, ['SSS', 3], 0, 'millisecond');
+    addFormatToken(0, ['SSSS', 4], 0, function () {
+        return this.millisecond() * 10;
+    });
+    addFormatToken(0, ['SSSSS', 5], 0, function () {
+        return this.millisecond() * 100;
+    });
+    addFormatToken(0, ['SSSSSS', 6], 0, function () {
+        return this.millisecond() * 1000;
+    });
+    addFormatToken(0, ['SSSSSSS', 7], 0, function () {
+        return this.millisecond() * 10000;
+    });
+    addFormatToken(0, ['SSSSSSSS', 8], 0, function () {
+        return this.millisecond() * 100000;
+    });
+    addFormatToken(0, ['SSSSSSSSS', 9], 0, function () {
+        return this.millisecond() * 1000000;
+    });
+
+    // PARSING
+
+    addRegexToken('S', match1to3, match1);
+    addRegexToken('SS', match1to3, match2);
+    addRegexToken('SSS', match1to3, match3);
+
+    var token, getSetMillisecond;
+    for (token = 'SSSS'; token.length <= 9; token += 'S') {
+        addRegexToken(token, matchUnsigned);
+    }
+
+    function parseMs(input, array) {
+        array[MILLISECOND] = toInt(('0.' + input) * 1000);
+    }
+
+    for (token = 'S'; token.length <= 9; token += 'S') {
+        addParseToken(token, parseMs);
+    }
+
+    getSetMillisecond = makeGetSet('Milliseconds', false);
+
+    // FORMATTING
+
+    addFormatToken('z', 0, 0, 'zoneAbbr');
+    addFormatToken('zz', 0, 0, 'zoneName');
+
+    // MOMENTS
+
+    function getZoneAbbr() {
+        return this._isUTC ? 'UTC' : '';
+    }
+
+    function getZoneName() {
+        return this._isUTC ? 'Coordinated Universal Time' : '';
+    }
+
+    var proto = Moment.prototype;
+
+    proto.add = add;
+    proto.calendar = calendar$1;
+    proto.clone = clone;
+    proto.diff = diff;
+    proto.endOf = endOf;
+    proto.format = format;
+    proto.from = from;
+    proto.fromNow = fromNow;
+    proto.to = to;
+    proto.toNow = toNow;
+    proto.get = stringGet;
+    proto.invalidAt = invalidAt;
+    proto.isAfter = isAfter;
+    proto.isBefore = isBefore;
+    proto.isBetween = isBetween;
+    proto.isSame = isSame;
+    proto.isSameOrAfter = isSameOrAfter;
+    proto.isSameOrBefore = isSameOrBefore;
+    proto.isValid = isValid$2;
+    proto.lang = lang;
+    proto.locale = locale;
+    proto.localeData = localeData;
+    proto.max = prototypeMax;
+    proto.min = prototypeMin;
+    proto.parsingFlags = parsingFlags;
+    proto.set = stringSet;
+    proto.startOf = startOf;
+    proto.subtract = subtract;
+    proto.toArray = toArray;
+    proto.toObject = toObject;
+    proto.toDate = toDate;
+    proto.toISOString = toISOString;
+    proto.inspect = inspect;
+    if (typeof Symbol !== 'undefined' && Symbol.for != null) {
+        proto[Symbol.for('nodejs.util.inspect.custom')] = function () {
+            return 'Moment<' + this.format() + '>';
+        };
+    }
+    proto.toJSON = toJSON;
+    proto.toString = toString;
+    proto.unix = unix;
+    proto.valueOf = valueOf;
+    proto.creationData = creationData;
+    proto.eraName = getEraName;
+    proto.eraNarrow = getEraNarrow;
+    proto.eraAbbr = getEraAbbr;
+    proto.eraYear = getEraYear;
+    proto.year = getSetYear;
+    proto.isLeapYear = getIsLeapYear;
+    proto.weekYear = getSetWeekYear;
+    proto.isoWeekYear = getSetISOWeekYear;
+    proto.quarter = proto.quarters = getSetQuarter;
+    proto.month = getSetMonth;
+    proto.daysInMonth = getDaysInMonth;
+    proto.week = proto.weeks = getSetWeek;
+    proto.isoWeek = proto.isoWeeks = getSetISOWeek;
+    proto.weeksInYear = getWeeksInYear;
+    proto.weeksInWeekYear = getWeeksInWeekYear;
+    proto.isoWeeksInYear = getISOWeeksInYear;
+    proto.isoWeeksInISOWeekYear = getISOWeeksInISOWeekYear;
+    proto.date = getSetDayOfMonth;
+    proto.day = proto.days = getSetDayOfWeek;
+    proto.weekday = getSetLocaleDayOfWeek;
+    proto.isoWeekday = getSetISODayOfWeek;
+    proto.dayOfYear = getSetDayOfYear;
+    proto.hour = proto.hours = getSetHour;
+    proto.minute = proto.minutes = getSetMinute;
+    proto.second = proto.seconds = getSetSecond;
+    proto.millisecond = proto.milliseconds = getSetMillisecond;
+    proto.utcOffset = getSetOffset;
+    proto.utc = setOffsetToUTC;
+    proto.local = setOffsetToLocal;
+    proto.parseZone = setOffsetToParsedOffset;
+    proto.hasAlignedHourOffset = hasAlignedHourOffset;
+    proto.isDST = isDaylightSavingTime;
+    proto.isLocal = isLocal;
+    proto.isUtcOffset = isUtcOffset;
+    proto.isUtc = isUtc;
+    proto.isUTC = isUtc;
+    proto.zoneAbbr = getZoneAbbr;
+    proto.zoneName = getZoneName;
+    proto.dates = deprecate(
+        'dates accessor is deprecated. Use date instead.',
+        getSetDayOfMonth
+    );
+    proto.months = deprecate(
+        'months accessor is deprecated. Use month instead',
+        getSetMonth
+    );
+    proto.years = deprecate(
+        'years accessor is deprecated. Use year instead',
+        getSetYear
+    );
+    proto.zone = deprecate(
+        'moment().zone is deprecated, use moment().utcOffset instead. http://momentjs.com/guides/#/warnings/zone/',
+        getSetZone
+    );
+    proto.isDSTShifted = deprecate(
+        'isDSTShifted is deprecated. See http://momentjs.com/guides/#/warnings/dst-shifted/ for more information',
+        isDaylightSavingTimeShifted
+    );
+
+    function createUnix(input) {
+        return createLocal(input * 1000);
+    }
+
+    function createInZone() {
+        return createLocal.apply(null, arguments).parseZone();
+    }
+
+    function preParsePostFormat(string) {
+        return string;
+    }
+
+    var proto$1 = Locale.prototype;
+
+    proto$1.calendar = calendar;
+    proto$1.longDateFormat = longDateFormat;
+    proto$1.invalidDate = invalidDate;
+    proto$1.ordinal = ordinal;
+    proto$1.preparse = preParsePostFormat;
+    proto$1.postformat = preParsePostFormat;
+    proto$1.relativeTime = relativeTime;
+    proto$1.pastFuture = pastFuture;
+    proto$1.set = set;
+    proto$1.eras = localeEras;
+    proto$1.erasParse = localeErasParse;
+    proto$1.erasConvertYear = localeErasConvertYear;
+    proto$1.erasAbbrRegex = erasAbbrRegex;
+    proto$1.erasNameRegex = erasNameRegex;
+    proto$1.erasNarrowRegex = erasNarrowRegex;
+
+    proto$1.months = localeMonths;
+    proto$1.monthsShort = localeMonthsShort;
+    proto$1.monthsParse = localeMonthsParse;
+    proto$1.monthsRegex = monthsRegex;
+    proto$1.monthsShortRegex = monthsShortRegex;
+    proto$1.week = localeWeek;
+    proto$1.firstDayOfYear = localeFirstDayOfYear;
+    proto$1.firstDayOfWeek = localeFirstDayOfWeek;
+
+    proto$1.weekdays = localeWeekdays;
+    proto$1.weekdaysMin = localeWeekdaysMin;
+    proto$1.weekdaysShort = localeWeekdaysShort;
+    proto$1.weekdaysParse = localeWeekdaysParse;
+
+    proto$1.weekdaysRegex = weekdaysRegex;
+    proto$1.weekdaysShortRegex = weekdaysShortRegex;
+    proto$1.weekdaysMinRegex = weekdaysMinRegex;
+
+    proto$1.isPM = localeIsPM;
+    proto$1.meridiem = localeMeridiem;
+
+    function get$1(format, index, field, setter) {
+        var locale = getLocale(),
+            utc = createUTC().set(setter, index);
+        return locale[field](utc, format);
+    }
+
+    function listMonthsImpl(format, index, field) {
+        if (isNumber(format)) {
+            index = format;
+            format = undefined;
+        }
+
+        format = format || '';
+
+        if (index != null) {
+            return get$1(format, index, field, 'month');
+        }
+
+        var i,
+            out = [];
+        for (i = 0; i < 12; i++) {
+            out[i] = get$1(format, i, field, 'month');
+        }
+        return out;
+    }
+
+    // ()
+    // (5)
+    // (fmt, 5)
+    // (fmt)
+    // (true)
+    // (true, 5)
+    // (true, fmt, 5)
+    // (true, fmt)
+    function listWeekdaysImpl(localeSorted, format, index, field) {
+        if (typeof localeSorted === 'boolean') {
+            if (isNumber(format)) {
+                index = format;
+                format = undefined;
+            }
+
+            format = format || '';
+        } else {
+            format = localeSorted;
+            index = format;
+            localeSorted = false;
+
+            if (isNumber(format)) {
+                index = format;
+                format = undefined;
+            }
+
+            format = format || '';
+        }
+
+        var locale = getLocale(),
+            shift = localeSorted ? locale._week.dow : 0,
+            i,
+            out = [];
+
+        if (index != null) {
+            return get$1(format, (index + shift) % 7, field, 'day');
+        }
+
+        for (i = 0; i < 7; i++) {
+            out[i] = get$1(format, (i + shift) % 7, field, 'day');
+        }
+        return out;
+    }
+
+    function listMonths(format, index) {
+        return listMonthsImpl(format, index, 'months');
+    }
+
+    function listMonthsShort(format, index) {
+        return listMonthsImpl(format, index, 'monthsShort');
+    }
+
+    function listWeekdays(localeSorted, format, index) {
+        return listWeekdaysImpl(localeSorted, format, index, 'weekdays');
+    }
+
+    function listWeekdaysShort(localeSorted, format, index) {
+        return listWeekdaysImpl(localeSorted, format, index, 'weekdaysShort');
+    }
+
+    function listWeekdaysMin(localeSorted, format, index) {
+        return listWeekdaysImpl(localeSorted, format, index, 'weekdaysMin');
+    }
+
+    getSetGlobalLocale('en', {
+        eras: [
+            {
+                since: '0001-01-01',
+                until: +Infinity,
+                offset: 1,
+                name: 'Anno Domini',
+                narrow: 'AD',
+                abbr: 'AD',
+            },
+            {
+                since: '0000-12-31',
+                until: -Infinity,
+                offset: 1,
+                name: 'Before Christ',
+                narrow: 'BC',
+                abbr: 'BC',
+            },
+        ],
+        dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    toInt((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                          ? 'st'
+                          : b === 2
+                            ? 'nd'
+                            : b === 3
+                              ? 'rd'
+                              : 'th';
+            return number + output;
+        },
+    });
+
+    // Side effect imports
+
+    hooks.lang = deprecate(
+        'moment.lang is deprecated. Use moment.locale instead.',
+        getSetGlobalLocale
+    );
+    hooks.langData = deprecate(
+        'moment.langData is deprecated. Use moment.localeData instead.',
+        getLocale
+    );
+
+    var mathAbs = Math.abs;
+
+    function abs() {
+        var data = this._data;
+
+        this._milliseconds = mathAbs(this._milliseconds);
+        this._days = mathAbs(this._days);
+        this._months = mathAbs(this._months);
+
+        data.milliseconds = mathAbs(data.milliseconds);
+        data.seconds = mathAbs(data.seconds);
+        data.minutes = mathAbs(data.minutes);
+        data.hours = mathAbs(data.hours);
+        data.months = mathAbs(data.months);
+        data.years = mathAbs(data.years);
+
+        return this;
+    }
+
+    function addSubtract$1(duration, input, value, direction) {
+        var other = createDuration(input, value);
+
+        duration._milliseconds += direction * other._milliseconds;
+        duration._days += direction * other._days;
+        duration._months += direction * other._months;
+
+        return duration._bubble();
+    }
+
+    // supports only 2.0-style add(1, 's') or add(duration)
+    function add$1(input, value) {
+        return addSubtract$1(this, input, value, 1);
+    }
+
+    // supports only 2.0-style subtract(1, 's') or subtract(duration)
+    function subtract$1(input, value) {
+        return addSubtract$1(this, input, value, -1);
+    }
+
+    function absCeil(number) {
+        if (number < 0) {
+            return Math.floor(number);
+        } else {
+            return Math.ceil(number);
+        }
+    }
+
+    function bubble() {
+        var milliseconds = this._milliseconds,
+            days = this._days,
+            months = this._months,
+            data = this._data,
+            seconds,
+            minutes,
+            hours,
+            years,
+            monthsFromDays;
+
+        // if we have a mix of positive and negative values, bubble down first
+        // check: https://github.com/moment/moment/issues/2166
+        if (
+            !(
+                (milliseconds >= 0 && days >= 0 && months >= 0) ||
+                (milliseconds <= 0 && days <= 0 && months <= 0)
+            )
+        ) {
+            milliseconds += absCeil(monthsToDays(months) + days) * 864e5;
+            days = 0;
+            months = 0;
+        }
+
+        // The following code bubbles up values, see the tests for
+        // examples of what that means.
+        data.milliseconds = milliseconds % 1000;
+
+        seconds = absFloor(milliseconds / 1000);
+        data.seconds = seconds % 60;
+
+        minutes = absFloor(seconds / 60);
+        data.minutes = minutes % 60;
+
+        hours = absFloor(minutes / 60);
+        data.hours = hours % 24;
+
+        days += absFloor(hours / 24);
+
+        // convert days to months
+        monthsFromDays = absFloor(daysToMonths(days));
+        months += monthsFromDays;
+        days -= absCeil(monthsToDays(monthsFromDays));
+
+        // 12 months -> 1 year
+        years = absFloor(months / 12);
+        months %= 12;
+
+        data.days = days;
+        data.months = months;
+        data.years = years;
+
+        return this;
+    }
+
+    function daysToMonths(days) {
+        // 400 years have 146097 days (taking into account leap year rules)
+        // 400 years have 12 months === 4800
+        return (days * 4800) / 146097;
+    }
+
+    function monthsToDays(months) {
+        // the reverse of daysToMonths
+        return (months * 146097) / 4800;
+    }
+
+    function as(units) {
+        if (!this.isValid()) {
+            return NaN;
+        }
+        var days,
+            months,
+            milliseconds = this._milliseconds;
+
+        units = normalizeUnits(units);
+
+        if (units === 'month' || units === 'quarter' || units === 'year') {
+            days = this._days + milliseconds / 864e5;
+            months = this._months + daysToMonths(days);
+            switch (units) {
+                case 'month':
+                    return months;
+                case 'quarter':
+                    return months / 3;
+                case 'year':
+                    return months / 12;
+            }
+        } else {
+            // handle milliseconds separately because of floating point math errors (issue #1867)
+            days = this._days + Math.round(monthsToDays(this._months));
+            switch (units) {
+                case 'week':
+                    return days / 7 + milliseconds / 6048e5;
+                case 'day':
+                    return days + milliseconds / 864e5;
+                case 'hour':
+                    return days * 24 + milliseconds / 36e5;
+                case 'minute':
+                    return days * 1440 + milliseconds / 6e4;
+                case 'second':
+                    return days * 86400 + milliseconds / 1000;
+                // Math.floor prevents floating point math errors here
+                case 'millisecond':
+                    return Math.floor(days * 864e5) + milliseconds;
+                default:
+                    throw new Error('Unknown unit ' + units);
+            }
+        }
+    }
+
+    function makeAs(alias) {
+        return function () {
+            return this.as(alias);
+        };
+    }
+
+    var asMilliseconds = makeAs('ms'),
+        asSeconds = makeAs('s'),
+        asMinutes = makeAs('m'),
+        asHours = makeAs('h'),
+        asDays = makeAs('d'),
+        asWeeks = makeAs('w'),
+        asMonths = makeAs('M'),
+        asQuarters = makeAs('Q'),
+        asYears = makeAs('y'),
+        valueOf$1 = asMilliseconds;
+
+    function clone$1() {
+        return createDuration(this);
+    }
+
+    function get$2(units) {
+        units = normalizeUnits(units);
+        return this.isValid() ? this[units + 's']() : NaN;
+    }
+
+    function makeGetter(name) {
+        return function () {
+            return this.isValid() ? this._data[name] : NaN;
+        };
+    }
+
+    var milliseconds = makeGetter('milliseconds'),
+        seconds = makeGetter('seconds'),
+        minutes = makeGetter('minutes'),
+        hours = makeGetter('hours'),
+        days = makeGetter('days'),
+        months = makeGetter('months'),
+        years = makeGetter('years');
+
+    function weeks() {
+        return absFloor(this.days() / 7);
+    }
+
+    var round = Math.round,
+        thresholds = {
+            ss: 44, // a few seconds to seconds
+            s: 45, // seconds to minute
+            m: 45, // minutes to hour
+            h: 22, // hours to day
+            d: 26, // days to month/week
+            w: null, // weeks to month
+            M: 11, // months to year
+        };
+
+    // helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize
+    function substituteTimeAgo(string, number, withoutSuffix, isFuture, locale) {
+        return locale.relativeTime(number || 1, !!withoutSuffix, string, isFuture);
+    }
+
+    function relativeTime$1(posNegDuration, withoutSuffix, thresholds, locale) {
+        var duration = createDuration(posNegDuration).abs(),
+            seconds = round(duration.as('s')),
+            minutes = round(duration.as('m')),
+            hours = round(duration.as('h')),
+            days = round(duration.as('d')),
+            months = round(duration.as('M')),
+            weeks = round(duration.as('w')),
+            years = round(duration.as('y')),
+            a =
+                (seconds <= thresholds.ss && ['s', seconds]) ||
+                (seconds < thresholds.s && ['ss', seconds]) ||
+                (minutes <= 1 && ['m']) ||
+                (minutes < thresholds.m && ['mm', minutes]) ||
+                (hours <= 1 && ['h']) ||
+                (hours < thresholds.h && ['hh', hours]) ||
+                (days <= 1 && ['d']) ||
+                (days < thresholds.d && ['dd', days]);
+
+        if (thresholds.w != null) {
+            a =
+                a ||
+                (weeks <= 1 && ['w']) ||
+                (weeks < thresholds.w && ['ww', weeks]);
+        }
+        a = a ||
+            (months <= 1 && ['M']) ||
+            (months < thresholds.M && ['MM', months]) ||
+            (years <= 1 && ['y']) || ['yy', years];
+
+        a[2] = withoutSuffix;
+        a[3] = +posNegDuration > 0;
+        a[4] = locale;
+        return substituteTimeAgo.apply(null, a);
+    }
+
+    // This function allows you to set the rounding function for relative time strings
+    function getSetRelativeTimeRounding(roundingFunction) {
+        if (roundingFunction === undefined) {
+            return round;
+        }
+        if (typeof roundingFunction === 'function') {
+            round = roundingFunction;
+            return true;
+        }
+        return false;
+    }
+
+    // This function allows you to set a threshold for relative time strings
+    function getSetRelativeTimeThreshold(threshold, limit) {
+        if (thresholds[threshold] === undefined) {
+            return false;
+        }
+        if (limit === undefined) {
+            return thresholds[threshold];
+        }
+        thresholds[threshold] = limit;
+        if (threshold === 's') {
+            thresholds.ss = limit - 1;
+        }
+        return true;
+    }
+
+    function humanize(argWithSuffix, argThresholds) {
+        if (!this.isValid()) {
+            return this.localeData().invalidDate();
+        }
+
+        var withSuffix = false,
+            th = thresholds,
+            locale,
+            output;
+
+        if (typeof argWithSuffix === 'object') {
+            argThresholds = argWithSuffix;
+            argWithSuffix = false;
+        }
+        if (typeof argWithSuffix === 'boolean') {
+            withSuffix = argWithSuffix;
+        }
+        if (typeof argThresholds === 'object') {
+            th = Object.assign({}, thresholds, argThresholds);
+            if (argThresholds.s != null && argThresholds.ss == null) {
+                th.ss = argThresholds.s - 1;
+            }
+        }
+
+        locale = this.localeData();
+        output = relativeTime$1(this, !withSuffix, th, locale);
+
+        if (withSuffix) {
+            output = locale.pastFuture(+this, output);
+        }
+
+        return locale.postformat(output);
+    }
+
+    var abs$1 = Math.abs;
+
+    function sign(x) {
+        return (x > 0) - (x < 0) || +x;
+    }
+
+    function toISOString$1() {
+        // for ISO strings we do not use the normal bubbling rules:
+        //  * milliseconds bubble up until they become hours
+        //  * days do not bubble at all
+        //  * months bubble up until they become years
+        // This is because there is no context-free conversion between hours and days
+        // (think of clock changes)
+        // and also not between days and months (28-31 days per month)
+        if (!this.isValid()) {
+            return this.localeData().invalidDate();
+        }
+
+        var seconds = abs$1(this._milliseconds) / 1000,
+            days = abs$1(this._days),
+            months = abs$1(this._months),
+            minutes,
+            hours,
+            years,
+            s,
+            total = this.asSeconds(),
+            totalSign,
+            ymSign,
+            daysSign,
+            hmsSign;
+
+        if (!total) {
+            // this is the same as C#'s (Noda) and python (isodate)...
+            // but not other JS (goog.date)
+            return 'P0D';
+        }
+
+        // 3600 seconds -> 60 minutes -> 1 hour
+        minutes = absFloor(seconds / 60);
+        hours = absFloor(minutes / 60);
+        seconds %= 60;
+        minutes %= 60;
+
+        // 12 months -> 1 year
+        years = absFloor(months / 12);
+        months %= 12;
+
+        // inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js
+        s = seconds ? seconds.toFixed(3).replace(/\.?0+$/, '') : '';
+
+        totalSign = total < 0 ? '-' : '';
+        ymSign = sign(this._months) !== sign(total) ? '-' : '';
+        daysSign = sign(this._days) !== sign(total) ? '-' : '';
+        hmsSign = sign(this._milliseconds) !== sign(total) ? '-' : '';
+
+        return (
+            totalSign +
+            'P' +
+            (years ? ymSign + years + 'Y' : '') +
+            (months ? ymSign + months + 'M' : '') +
+            (days ? daysSign + days + 'D' : '') +
+            (hours || minutes || seconds ? 'T' : '') +
+            (hours ? hmsSign + hours + 'H' : '') +
+            (minutes ? hmsSign + minutes + 'M' : '') +
+            (seconds ? hmsSign + s + 'S' : '')
+        );
+    }
+
+    var proto$2 = Duration.prototype;
+
+    proto$2.isValid = isValid$1;
+    proto$2.abs = abs;
+    proto$2.add = add$1;
+    proto$2.subtract = subtract$1;
+    proto$2.as = as;
+    proto$2.asMilliseconds = asMilliseconds;
+    proto$2.asSeconds = asSeconds;
+    proto$2.asMinutes = asMinutes;
+    proto$2.asHours = asHours;
+    proto$2.asDays = asDays;
+    proto$2.asWeeks = asWeeks;
+    proto$2.asMonths = asMonths;
+    proto$2.asQuarters = asQuarters;
+    proto$2.asYears = asYears;
+    proto$2.valueOf = valueOf$1;
+    proto$2._bubble = bubble;
+    proto$2.clone = clone$1;
+    proto$2.get = get$2;
+    proto$2.milliseconds = milliseconds;
+    proto$2.seconds = seconds;
+    proto$2.minutes = minutes;
+    proto$2.hours = hours;
+    proto$2.days = days;
+    proto$2.weeks = weeks;
+    proto$2.months = months;
+    proto$2.years = years;
+    proto$2.humanize = humanize;
+    proto$2.toISOString = toISOString$1;
+    proto$2.toString = toISOString$1;
+    proto$2.toJSON = toISOString$1;
+    proto$2.locale = locale;
+    proto$2.localeData = localeData;
+
+    proto$2.toIsoString = deprecate(
+        'toIsoString() is deprecated. Please use toISOString() instead (notice the capitals)',
+        toISOString$1
+    );
+    proto$2.lang = lang;
+
+    // FORMATTING
+
+    addFormatToken('X', 0, 0, 'unix');
+    addFormatToken('x', 0, 0, 'valueOf');
+
+    // PARSING
+
+    addRegexToken('x', matchSigned);
+    addRegexToken('X', matchTimestamp);
+    addParseToken('X', function (input, array, config) {
+        config._d = new Date(parseFloat(input) * 1000);
+    });
+    addParseToken('x', function (input, array, config) {
+        config._d = new Date(toInt(input));
+    });
+
+    //! moment.js
+
+    hooks.version = '2.30.1';
+
+    setHookCallback(createLocal);
+
+    hooks.fn = proto;
+    hooks.min = min;
+    hooks.max = max;
+    hooks.now = now;
+    hooks.utc = createUTC;
+    hooks.unix = createUnix;
+    hooks.months = listMonths;
+    hooks.isDate = isDate;
+    hooks.locale = getSetGlobalLocale;
+    hooks.invalid = createInvalid;
+    hooks.duration = createDuration;
+    hooks.isMoment = isMoment;
+    hooks.weekdays = listWeekdays;
+    hooks.parseZone = createInZone;
+    hooks.localeData = getLocale;
+    hooks.isDuration = isDuration;
+    hooks.monthsShort = listMonthsShort;
+    hooks.weekdaysMin = listWeekdaysMin;
+    hooks.defineLocale = defineLocale;
+    hooks.updateLocale = updateLocale;
+    hooks.locales = listLocales;
+    hooks.weekdaysShort = listWeekdaysShort;
+    hooks.normalizeUnits = normalizeUnits;
+    hooks.relativeTimeRounding = getSetRelativeTimeRounding;
+    hooks.relativeTimeThreshold = getSetRelativeTimeThreshold;
+    hooks.calendarFormat = getCalendarFormat;
+    hooks.prototype = proto;
+
+    // currently HTML5 input type only supports 24-hour formats
+    hooks.HTML5_FMT = {
+        DATETIME_LOCAL: 'YYYY-MM-DDTHH:mm', // <input type="datetime-local" />
+        DATETIME_LOCAL_SECONDS: 'YYYY-MM-DDTHH:mm:ss', // <input type="datetime-local" step="1" />
+        DATETIME_LOCAL_MS: 'YYYY-MM-DDTHH:mm:ss.SSS', // <input type="datetime-local" step="0.001" />
+        DATE: 'YYYY-MM-DD', // <input type="date" />
+        TIME: 'HH:mm', // <input type="time" />
+        TIME_SECONDS: 'HH:mm:ss', // <input type="time" step="1" />
+        TIME_MS: 'HH:mm:ss.SSS', // <input type="time" step="0.001" />
+        WEEK: 'GGGG-[W]WW', // <input type="week" />
+        MONTH: 'YYYY-MM', // <input type="month" />
+    };
+
+    return hooks;
+
+})));
diff --git a/backend/node_modules/moment/package.js b/backend/node_modules/moment/package.js
new file mode 100644
index 0000000..aba8d50
--- /dev/null
+++ b/backend/node_modules/moment/package.js
@@ -0,0 +1,11 @@
+var profile = {
+    resourceTags: {
+        ignore: function(filename, mid){
+            // only include moment/moment
+            return mid != "moment/moment";
+        },
+        amd: function(filename, mid){
+            return /\.js$/.test(filename);
+        }
+    }
+};
diff --git a/backend/node_modules/moment/package.json b/backend/node_modules/moment/package.json
new file mode 100644
index 0000000..77a48e6
--- /dev/null
+++ b/backend/node_modules/moment/package.json
@@ -0,0 +1,116 @@
+{
+    "name": "moment",
+    "version": "2.30.1",
+    "description": "Parse, validate, manipulate, and display dates",
+    "homepage": "https://momentjs.com",
+    "author": "Iskren Ivov Chernev <iskren.chernev@gmail.com> (https://github.com/ichernev)",
+    "contributors": [
+        "Tim Wood <washwithcare@gmail.com> (http://timwoodcreates.com/)",
+        "Rocky Meza (http://rockymeza.com)",
+        "Matt Johnson <mj1856@hotmail.com> (http://codeofmatt.com)",
+        "Isaac Cambron <isaac@isaaccambron.com> (http://isaaccambron.com)",
+        "Andre Polykanine <andre@oire.org> (https://github.com/oire)"
+    ],
+    "keywords": [
+        "moment",
+        "date",
+        "time",
+        "parse",
+        "format",
+        "validate",
+        "i18n",
+        "l10n",
+        "ender"
+    ],
+    "main": "./moment.js",
+    "jsnext:main": "./dist/moment.js",
+    "typings": "./moment.d.ts",
+    "typesVersions": {
+        ">=3.1": {
+            "*": [
+                "ts3.1-typings/*"
+            ],
+            "min/moment-with-locales": [
+                "ts3.1-typings/moment.d.ts"
+            ]
+        }
+    },
+    "engines": {
+        "node": "*"
+    },
+    "repository": {
+        "type": "git",
+        "url": "https://github.com/moment/moment.git"
+    },
+    "bugs": {
+        "url": "https://github.com/moment/moment/issues"
+    },
+    "license": "MIT",
+    "devDependencies": {
+        "benchmark": "latest",
+        "coveralls": "latest",
+        "cross-env": "^6.0.3",
+        "es6-promise": "latest",
+        "eslint": "latest",
+        "grunt": "latest",
+        "grunt-benchmark": "latest",
+        "grunt-cli": "latest",
+        "grunt-contrib-clean": "latest",
+        "grunt-contrib-concat": "latest",
+        "grunt-contrib-copy": "latest",
+        "grunt-contrib-uglify": "latest",
+        "grunt-contrib-watch": "latest",
+        "grunt-env": "latest",
+        "grunt-exec": "latest",
+        "grunt-karma": "latest",
+        "grunt-nuget": "latest",
+        "grunt-string-replace": "latest",
+        "karma": "latest",
+        "karma-chrome-launcher": "latest",
+        "karma-firefox-launcher": "latest",
+        "karma-qunit": "latest",
+        "karma-sauce-launcher": "4.1.4",
+        "load-grunt-tasks": "latest",
+        "lodash": ">=4.17.19",
+        "node-qunit": "latest",
+        "nyc": "latest",
+        "prettier": "latest",
+        "qunit": "^2.10.0",
+        "rollup": "2.17.1",
+        "typescript": "^1.8.10",
+        "typescript3": "npm:typescript@^3.1.6",
+        "uglify-js": "latest",
+        "@types/node": "17.0.21"
+    },
+    "ender": "./ender.js",
+    "dojoBuild": "package.js",
+    "jspm": {
+        "files": [
+            "moment.js",
+            "moment.d.ts",
+            "locale"
+        ],
+        "map": {
+            "moment": "./moment"
+        },
+        "buildConfig": {
+            "uglify": true
+        }
+    },
+    "scripts": {
+        "ts3.1-typescript-test": "cross-env node_modules/typescript3/bin/tsc --project ts3.1-typing-tests",
+        "typescript-test": "cross-env node_modules/typescript/bin/tsc --project typing-tests",
+        "test": "grunt test",
+        "eslint": "eslint Gruntfile.js tasks src",
+        "prettier-check": "prettier --check Gruntfile.js tasks src",
+        "prettier-fmt": "prettier --write Gruntfile.js tasks src",
+        "coverage": "nyc npm test && nyc report",
+        "coveralls": "nyc npm test && nyc report --reporter=text-lcov | coveralls"
+    },
+    "spm": {
+        "main": "moment.js",
+        "output": [
+            "locale/*.js"
+        ]
+    }
+}
diff --git a/backend/node_modules/moment/src/lib/create/check-overflow.js b/backend/node_modules/moment/src/lib/create/check-overflow.js
new file mode 100644
index 0000000..ee08812
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/create/check-overflow.js
@@ -0,0 +1,57 @@
+import { daysInMonth } from '../units/month';
+import {
+    YEAR,
+    MONTH,
+    DATE,
+    HOUR,
+    MINUTE,
+    SECOND,
+    MILLISECOND,
+    WEEK,
+    WEEKDAY,
+} from '../units/constants';
+import getParsingFlags from '../create/parsing-flags';
+
+export default function checkOverflow(m) {
+    var overflow,
+        a = m._a;
+
+    if (a && getParsingFlags(m).overflow === -2) {
+        overflow =
+            a[MONTH] < 0 || a[MONTH] > 11
+                ? MONTH
+                : a[DATE] < 1 || a[DATE] > daysInMonth(a[YEAR], a[MONTH])
+                  ? DATE
+                  : a[HOUR] < 0 ||
+                      a[HOUR] > 24 ||
+                      (a[HOUR] === 24 &&
+                          (a[MINUTE] !== 0 ||
+                              a[SECOND] !== 0 ||
+                              a[MILLISECOND] !== 0))
+                    ? HOUR
+                    : a[MINUTE] < 0 || a[MINUTE] > 59
+                      ? MINUTE
+                      : a[SECOND] < 0 || a[SECOND] > 59
+                        ? SECOND
+                        : a[MILLISECOND] < 0 || a[MILLISECOND] > 999
+                          ? MILLISECOND
+                          : -1;
+
+        if (
+            getParsingFlags(m)._overflowDayOfYear &&
+            (overflow < YEAR || overflow > DATE)
+        ) {
+            overflow = DATE;
+        }
+        if (getParsingFlags(m)._overflowWeeks && overflow === -1) {
+            overflow = WEEK;
+        }
+        if (getParsingFlags(m)._overflowWeekday && overflow === -1) {
+            overflow = WEEKDAY;
+        }
+
+        getParsingFlags(m).overflow = overflow;
+    }
+
+    return m;
+}
diff --git a/backend/node_modules/moment/src/lib/create/date-from-array.js b/backend/node_modules/moment/src/lib/create/date-from-array.js
new file mode 100644
index 0000000..3d3498d
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/create/date-from-array.js
@@ -0,0 +1,35 @@
+export function createDate(y, m, d, h, M, s, ms) {
+    // can't just apply() to create a date:
+    // https://stackoverflow.com/q/181348
+    var date;
+    // the date constructor remaps years 0-99 to 1900-1999
+    if (y < 100 && y >= 0) {
+        // preserve leap years using a full 400 year cycle, then reset
+        date = new Date(y + 400, m, d, h, M, s, ms);
+        if (isFinite(date.getFullYear())) {
+            date.setFullYear(y);
+        }
+    } else {
+        date = new Date(y, m, d, h, M, s, ms);
+    }
+
+    return date;
+}
+
+export function createUTCDate(y) {
+    var date, args;
+    // the Date.UTC function remaps years 0-99 to 1900-1999
+    if (y < 100 && y >= 0) {
+        args = Array.prototype.slice.call(arguments);
+        // preserve leap years using a full 400 year cycle, then reset
+        args[0] = y + 400;
+        date = new Date(Date.UTC.apply(null, args));
+        if (isFinite(date.getUTCFullYear())) {
+            date.setUTCFullYear(y);
+        }
+    } else {
+        date = new Date(Date.UTC.apply(null, arguments));
+    }
+
+    return date;
+}
diff --git a/backend/node_modules/moment/src/lib/create/from-anything.js b/backend/node_modules/moment/src/lib/create/from-anything.js
new file mode 100644
index 0000000..0c5d772
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/create/from-anything.js
@@ -0,0 +1,117 @@
+import isArray from '../utils/is-array';
+import isObject from '../utils/is-object';
+import isObjectEmpty from '../utils/is-object-empty';
+import isUndefined from '../utils/is-undefined';
+import isNumber from '../utils/is-number';
+import isDate from '../utils/is-date';
+import map from '../utils/map';
+import { createInvalid } from './valid';
+import { Moment, isMoment } from '../moment/constructor';
+import { getLocale } from '../locale/locales';
+import { hooks } from '../utils/hooks';
+import checkOverflow from './check-overflow';
+import { isValid } from './valid';
+
+import { configFromStringAndArray } from './from-string-and-array';
+import { configFromStringAndFormat } from './from-string-and-format';
+import { configFromString } from './from-string';
+import { configFromArray } from './from-array';
+import { configFromObject } from './from-object';
+
+function createFromConfig(config) {
+    var res = new Moment(checkOverflow(prepareConfig(config)));
+    if (res._nextDay) {
+        // Adding is smart enough around DST
+        res.add(1, 'd');
+        res._nextDay = undefined;
+    }
+
+    return res;
+}
+
+export function prepareConfig(config) {
+    var input = config._i,
+        format = config._f;
+
+    config._locale = config._locale || getLocale(config._l);
+
+    if (input === null || (format === undefined && input === '')) {
+        return createInvalid({ nullInput: true });
+    }
+
+    if (typeof input === 'string') {
+        config._i = input = config._locale.preparse(input);
+    }
+
+    if (isMoment(input)) {
+        return new Moment(checkOverflow(input));
+    } else if (isDate(input)) {
+        config._d = input;
+    } else if (isArray(format)) {
+        configFromStringAndArray(config);
+    } else if (format) {
+        configFromStringAndFormat(config);
+    } else {
+        configFromInput(config);
+    }
+
+    if (!isValid(config)) {
+        config._d = null;
+    }
+
+    return config;
+}
+
+function configFromInput(config) {
+    var input = config._i;
+    if (isUndefined(input)) {
+        config._d = new Date(hooks.now());
+    } else if (isDate(input)) {
+        config._d = new Date(input.valueOf());
+    } else if (typeof input === 'string') {
+        configFromString(config);
+    } else if (isArray(input)) {
+        config._a = map(input.slice(0), function (obj) {
+            return parseInt(obj, 10);
+        });
+        configFromArray(config);
+    } else if (isObject(input)) {
+        configFromObject(config);
+    } else if (isNumber(input)) {
+        // from milliseconds
+        config._d = new Date(input);
+    } else {
+        hooks.createFromInputFallback(config);
+    }
+}
+
+export function createLocalOrUTC(input, format, locale, strict, isUTC) {
+    var c = {};
+
+    if (format === true || format === false) {
+        strict = format;
+        format = undefined;
+    }
+
+    if (locale === true || locale === false) {
+        strict = locale;
+        locale = undefined;
+    }
+
+    if (
+        (isObject(input) && isObjectEmpty(input)) ||
+        (isArray(input) && input.length === 0)
+    ) {
+        input = undefined;
+    }
+    // object construction must be done this way.
+    // https://github.com/moment/moment/issues/1423
+    c._isAMomentObject = true;
+    c._useUTC = c._isUTC = isUTC;
+    c._l = locale;
+    c._i = input;
+    c._f = format;
+    c._strict = strict;
+
+    return createFromConfig(c);
+}
diff --git a/backend/node_modules/moment/src/lib/create/from-array.js b/backend/node_modules/moment/src/lib/create/from-array.js
new file mode 100644
index 0000000..610d802
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/create/from-array.js
@@ -0,0 +1,187 @@
+import { hooks } from '../utils/hooks';
+import { createDate, createUTCDate } from './date-from-array';
+import { daysInYear } from '../units/year';
+import {
+    weekOfYear,
+    weeksInYear,
+    dayOfYearFromWeeks,
+} from '../units/week-calendar-utils';
+import {
+    YEAR,
+    MONTH,
+    DATE,
+    HOUR,
+    MINUTE,
+    SECOND,
+    MILLISECOND,
+} from '../units/constants';
+import { createLocal } from './local';
+import defaults from '../utils/defaults';
+import getParsingFlags from './parsing-flags';
+
+function currentDateArray(config) {
+    // hooks is actually the exported moment object
+    var nowValue = new Date(hooks.now());
+    if (config._useUTC) {
+        return [
+            nowValue.getUTCFullYear(),
+            nowValue.getUTCMonth(),
+            nowValue.getUTCDate(),
+        ];
+    }
+    return [nowValue.getFullYear(), nowValue.getMonth(), nowValue.getDate()];
+}
+
+// convert an array to a date.
+// the array should mirror the parameters below
+// note: all values past the year are optional and will default to the lowest possible value.
+// [year, month, day , hour, minute, second, millisecond]
+export function configFromArray(config) {
+    var i,
+        date,
+        input = [],
+        currentDate,
+        expectedWeekday,
+        yearToUse;
+
+    if (config._d) {
+        return;
+    }
+
+    currentDate = currentDateArray(config);
+
+    //compute day of the year from weeks and weekdays
+    if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {
+        dayOfYearFromWeekInfo(config);
+    }
+
+    //if the day of the year is set, figure out what it is
+    if (config._dayOfYear != null) {
+        yearToUse = defaults(config._a[YEAR], currentDate[YEAR]);
+
+        if (
+            config._dayOfYear > daysInYear(yearToUse) ||
+            config._dayOfYear === 0
+        ) {
+            getParsingFlags(config)._overflowDayOfYear = true;
+        }
+
+        date = createUTCDate(yearToUse, 0, config._dayOfYear);
+        config._a[MONTH] = date.getUTCMonth();
+        config._a[DATE] = date.getUTCDate();
+    }
+
+    // Default to current date.
+    // * if no year, month, day of month are given, default to today
+    // * if day of month is given, default month and year
+    // * if month is given, default only year
+    // * if year is given, don't default anything
+    for (i = 0; i < 3 && config._a[i] == null; ++i) {
+        config._a[i] = input[i] = currentDate[i];
+    }
+
+    // Zero out whatever was not defaulted, including time
+    for (; i < 7; i++) {
+        config._a[i] = input[i] =
+            config._a[i] == null ? (i === 2 ? 1 : 0) : config._a[i];
+    }
+
+    // Check for 24:00:00.000
+    if (
+        config._a[HOUR] === 24 &&
+        config._a[MINUTE] === 0 &&
+        config._a[SECOND] === 0 &&
+        config._a[MILLISECOND] === 0
+    ) {
+        config._nextDay = true;
+        config._a[HOUR] = 0;
+    }
+
+    config._d = (config._useUTC ? createUTCDate : createDate).apply(
+        null,
+        input
+    );
+    expectedWeekday = config._useUTC
+        ? config._d.getUTCDay()
+        : config._d.getDay();
+
+    // Apply timezone offset from input. The actual utcOffset can be changed
+    // with parseZone.
+    if (config._tzm != null) {
+        config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
+    }
+
+    if (config._nextDay) {
+        config._a[HOUR] = 24;
+    }
+
+    // check for mismatching day of week
+    if (
+        config._w &&
+        typeof config._w.d !== 'undefined' &&
+        config._w.d !== expectedWeekday
+    ) {
+        getParsingFlags(config).weekdayMismatch = true;
+    }
+}
+
+function dayOfYearFromWeekInfo(config) {
+    var w, weekYear, week, weekday, dow, doy, temp, weekdayOverflow, curWeek;
+
+    w = config._w;
+    if (w.GG != null || w.W != null || w.E != null) {
+        dow = 1;
+        doy = 4;
+
+        // TODO: We need to take the current isoWeekYear, but that depends on
+        // how we interpret now (local, utc, fixed offset). So create
+        // a now version of current config (take local/utc/offset flags, and
+        // create now).
+        weekYear = defaults(
+            w.GG,
+            config._a[YEAR],
+            weekOfYear(createLocal(), 1, 4).year
+        );
+        week = defaults(w.W, 1);
+        weekday = defaults(w.E, 1);
+        if (weekday < 1 || weekday > 7) {
+            weekdayOverflow = true;
+        }
+    } else {
+        dow = config._locale._week.dow;
+        doy = config._locale._week.doy;
+
+        curWeek = weekOfYear(createLocal(), dow, doy);
+
+        weekYear = defaults(w.gg, config._a[YEAR], curWeek.year);
+
+        // Default to current week.
+        week = defaults(w.w, curWeek.week);
+
+        if (w.d != null) {
+            // weekday -- low day numbers are considered next week
+            weekday = w.d;
+            if (weekday < 0 || weekday > 6) {
+                weekdayOverflow = true;
+            }
+        } else if (w.e != null) {
+            // local weekday -- counting starts from beginning of week
+            weekday = w.e + dow;
+            if (w.e < 0 || w.e > 6) {
+                weekdayOverflow = true;
+            }
+        } else {
+            // default to beginning of week
+            weekday = dow;
+        }
+    }
+    if (week < 1 || week > weeksInYear(weekYear, dow, doy)) {
+        getParsingFlags(config)._overflowWeeks = true;
+    } else if (weekdayOverflow != null) {
+        getParsingFlags(config)._overflowWeekday = true;
+    } else {
+        temp = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy);
+        config._a[YEAR] = temp.year;
+        config._dayOfYear = temp.dayOfYear;
+    }
+}
diff --git a/backend/node_modules/moment/src/lib/create/from-object.js b/backend/node_modules/moment/src/lib/create/from-object.js
new file mode 100644
index 0000000..55d15c7
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/create/from-object.js
@@ -0,0 +1,20 @@
+import { normalizeObjectUnits } from '../units/aliases';
+import { configFromArray } from './from-array';
+import map from '../utils/map';
+
+export function configFromObject(config) {
+    if (config._d) {
+        return;
+    }
+
+    var i = normalizeObjectUnits(config._i),
+        dayOrDate = i.day === undefined ? i.date : i.day;
+    config._a = map(
+        [i.year, i.month, dayOrDate, i.hour, i.minute, i.second, i.millisecond],
+        function (obj) {
+            return obj && parseInt(obj, 10);
+        }
+    );
+
+    configFromArray(config);
+}
diff --git a/backend/node_modules/moment/src/lib/create/from-string-and-array.js b/backend/node_modules/moment/src/lib/create/from-string-and-array.js
new file mode 100644
index 0000000..4e64167
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/create/from-string-and-array.js
@@ -0,0 +1,67 @@
+import { copyConfig } from '../moment/constructor';
+import { configFromStringAndFormat } from './from-string-and-format';
+import getParsingFlags from './parsing-flags';
+import { isValid } from './valid';
+import extend from '../utils/extend';
+
+// date from string and array of format strings
+export function configFromStringAndArray(config) {
+    var tempConfig,
+        bestMoment,
+        scoreToBeat,
+        i,
+        currentScore,
+        validFormatFound,
+        bestFormatIsValid = false,
+        configfLen = config._f.length;
+
+    if (configfLen === 0) {
+        getParsingFlags(config).invalidFormat = true;
+        config._d = new Date(NaN);
+        return;
+    }
+
+    for (i = 0; i < configfLen; i++) {
+        currentScore = 0;
+        validFormatFound = false;
+        tempConfig = copyConfig({}, config);
+        if (config._useUTC != null) {
+            tempConfig._useUTC = config._useUTC;
+        }
+        tempConfig._f = config._f[i];
+        configFromStringAndFormat(tempConfig);
+
+        if (isValid(tempConfig)) {
+            validFormatFound = true;
+        }
+
+        // if there is any input that was not parsed add a penalty for that format
+        currentScore += getParsingFlags(tempConfig).charsLeftOver;
+
+        //or tokens
+        currentScore += getParsingFlags(tempConfig).unusedTokens.length * 10;
+
+        getParsingFlags(tempConfig).score = currentScore;
+
+        if (!bestFormatIsValid) {
+            if (
+                scoreToBeat == null ||
+                currentScore < scoreToBeat ||
+                validFormatFound
+            ) {
+                scoreToBeat = currentScore;
+                bestMoment = tempConfig;
+                if (validFormatFound) {
+                    bestFormatIsValid = true;
+                }
+            }
+        } else {
+            if (currentScore < scoreToBeat) {
+                scoreToBeat = currentScore;
+                bestMoment = tempConfig;
+            }
+        }
+    }
+
+    extend(config, bestMoment || tempConfig);
+}
diff --git a/backend/node_modules/moment/src/lib/create/from-string-and-format.js b/backend/node_modules/moment/src/lib/create/from-string-and-format.js
new file mode 100644
index 0000000..82d60d5
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/create/from-string-and-format.js
@@ -0,0 +1,135 @@
+import { configFromISO, configFromRFC2822 } from './from-string';
+import { configFromArray } from './from-array';
+import { getParseRegexForToken } from '../parse/regex';
+import { addTimeToArrayFromToken } from '../parse/token';
+import {
+    expandFormat,
+    formatTokenFunctions,
+    formattingTokens,
+} from '../format/format';
+import checkOverflow from './check-overflow';
+import { YEAR, HOUR } from '../units/constants';
+import { hooks } from '../utils/hooks';
+import getParsingFlags from './parsing-flags';
+
+// constant that refers to the ISO standard
+hooks.ISO_8601 = function () {};
+
+// constant that refers to the RFC 2822 form
+hooks.RFC_2822 = function () {};
+
+// date from string and format string
+export function configFromStringAndFormat(config) {
+    // TODO: Move this to another part of the creation flow to prevent circular deps
+    if (config._f === hooks.ISO_8601) {
+        configFromISO(config);
+        return;
+    }
+    if (config._f === hooks.RFC_2822) {
+        configFromRFC2822(config);
+        return;
+    }
+    config._a = [];
+    getParsingFlags(config).empty = true;
+
+    // This array is used to make a Date, either with `new Date` or `Date.UTC`
+    var string = '' + config._i,
+        i,
+        parsedInput,
+        tokens,
+        token,
+        skipped,
+        stringLength = string.length,
+        totalParsedInputLength = 0,
+        era,
+        tokenLen;
+
+    tokens =
+        expandFormat(config._f, config._locale).match(formattingTokens) || [];
+    tokenLen = tokens.length;
+    for (i = 0; i < tokenLen; i++) {
+        token = tokens[i];
+        parsedInput = (string.match(getParseRegexForToken(token, config)) ||
+            [])[0];
+        if (parsedInput) {
+            skipped = string.substr(0, string.indexOf(parsedInput));
+            if (skipped.length > 0) {
+                getParsingFlags(config).unusedInput.push(skipped);
+            }
+            string = string.slice(
+                string.indexOf(parsedInput) + parsedInput.length
+            );
+            totalParsedInputLength += parsedInput.length;
+        }
+        // don't parse if it's not a known token
+        if (formatTokenFunctions[token]) {
+            if (parsedInput) {
+                getParsingFlags(config).empty = false;
+            } else {
+                getParsingFlags(config).unusedTokens.push(token);
+            }
+            addTimeToArrayFromToken(token, parsedInput, config);
+        } else if (config._strict && !parsedInput) {
+            getParsingFlags(config).unusedTokens.push(token);
+        }
+    }
+
+    // add remaining unparsed input length to the string
+    getParsingFlags(config).charsLeftOver =
+        stringLength - totalParsedInputLength;
+    if (string.length > 0) {
+        getParsingFlags(config).unusedInput.push(string);
+    }
+
+    // clear _12h flag if hour is <= 12
+    if (
+        config._a[HOUR] <= 12 &&
+        getParsingFlags(config).bigHour === true &&
+        config._a[HOUR] > 0
+    ) {
+        getParsingFlags(config).bigHour = undefined;
+    }
+
+    getParsingFlags(config).parsedDateParts = config._a.slice(0);
+    getParsingFlags(config).meridiem = config._meridiem;
+    // handle meridiem
+    config._a[HOUR] = meridiemFixWrap(
+        config._locale,
+        config._a[HOUR],
+        config._meridiem
+    );
+
+    // handle era
+    era = getParsingFlags(config).era;
+    if (era !== null) {
+        config._a[YEAR] = config._locale.erasConvertYear(era, config._a[YEAR]);
+    }
+
+    configFromArray(config);
+    checkOverflow(config);
+}
+
+function meridiemFixWrap(locale, hour, meridiem) {
+    var isPm;
+
+    if (meridiem == null) {
+        // nothing to do
+        return hour;
+    }
+    if (locale.meridiemHour != null) {
+        return locale.meridiemHour(hour, meridiem);
+    } else if (locale.isPM != null) {
+        // Fallback
+        isPm = locale.isPM(meridiem);
+        if (isPm && hour < 12) {
+            hour += 12;
+        }
+        if (!isPm && hour === 12) {
+            hour = 0;
+        }
+        return hour;
+    } else {
+        // this is not supposed to happen
+        return hour;
+    }
+}
diff --git a/backend/node_modules/moment/src/lib/create/from-string.js b/backend/node_modules/moment/src/lib/create/from-string.js
new file mode 100644
index 0000000..58739b9
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/create/from-string.js
@@ -0,0 +1,258 @@
+import { configFromStringAndFormat } from './from-string-and-format';
+import { createUTCDate } from './date-from-array';
+import { hooks } from '../utils/hooks';
+import { deprecate } from '../utils/deprecate';
+import getParsingFlags from './parsing-flags';
+import { defaultLocaleMonthsShort } from '../units/month';
+import { defaultLocaleWeekdaysShort } from '../units/day-of-week';
+
+// iso 8601 regex
+// 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
+var extendedIsoRegex =
+        /^\s*((?:[+-]\d{6}|\d{4})-(?:\d\d-\d\d|W\d\d-\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?::\d\d(?::\d\d(?:[.,]\d+)?)?)?)([+-]\d\d(?::?\d\d)?|\s*Z)?)?$/,
+    basicIsoRegex =
+        /^\s*((?:[+-]\d{6}|\d{4})(?:\d\d\d\d|W\d\d\d|W\d\d|\d\d\d|\d\d|))(?:(T| )(\d\d(?:\d\d(?:\d\d(?:[.,]\d+)?)?)?)([+-]\d\d(?::?\d\d)?|\s*Z)?)?$/,
+    tzRegex = /Z|[+-]\d\d(?::?\d\d)?/,
+    isoDates = [
+        ['YYYYYY-MM-DD', /[+-]\d{6}-\d\d-\d\d/],
+        ['YYYY-MM-DD', /\d{4}-\d\d-\d\d/],
+        ['GGGG-[W]WW-E', /\d{4}-W\d\d-\d/],
+        ['GGGG-[W]WW', /\d{4}-W\d\d/, false],
+        ['YYYY-DDD', /\d{4}-\d{3}/],
+        ['YYYY-MM', /\d{4}-\d\d/, false],
+        ['YYYYYYMMDD', /[+-]\d{10}/],
+        ['YYYYMMDD', /\d{8}/],
+        ['GGGG[W]WWE', /\d{4}W\d{3}/],
+        ['GGGG[W]WW', /\d{4}W\d{2}/, false],
+        ['YYYYDDD', /\d{7}/],
+        ['YYYYMM', /\d{6}/, false],
+        ['YYYY', /\d{4}/, false],
+    ],
+    // iso time formats and regexes
+    isoTimes = [
+        ['HH:mm:ss.SSSS', /\d\d:\d\d:\d\d\.\d+/],
+        ['HH:mm:ss,SSSS', /\d\d:\d\d:\d\d,\d+/],
+        ['HH:mm:ss', /\d\d:\d\d:\d\d/],
+        ['HH:mm', /\d\d:\d\d/],
+        ['HHmmss.SSSS', /\d\d\d\d\d\d\.\d+/],
+        ['HHmmss,SSSS', /\d\d\d\d\d\d,\d+/],
+        ['HHmmss', /\d\d\d\d\d\d/],
+        ['HHmm', /\d\d\d\d/],
+        ['HH', /\d\d/],
+    ],
+    aspNetJsonRegex = /^\/?Date\((-?\d+)/i,
+    // RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3
+    rfc2822 =
+        /^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\s)?(\d{1,2})\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s(\d{2,4})\s(\d\d):(\d\d)(?::(\d\d))?\s(?:(UT|GMT|[ECMP][SD]T)|([Zz])|([+-]\d{4}))$/,
+    obsOffsets = {
+        UT: 0,
+        GMT: 0,
+        EDT: -4 * 60,
+        EST: -5 * 60,
+        CDT: -5 * 60,
+        CST: -6 * 60,
+        MDT: -6 * 60,
+        MST: -7 * 60,
+        PDT: -7 * 60,
+        PST: -8 * 60,
+    };
+
+// date from iso format
+export function configFromISO(config) {
+    var i,
+        l,
+        string = config._i,
+        match = extendedIsoRegex.exec(string) || basicIsoRegex.exec(string),
+        allowTime,
+        dateFormat,
+        timeFormat,
+        tzFormat,
+        isoDatesLen = isoDates.length,
+        isoTimesLen = isoTimes.length;
+
+    if (match) {
+        getParsingFlags(config).iso = true;
+        for (i = 0, l = isoDatesLen; i < l; i++) {
+            if (isoDates[i][1].exec(match[1])) {
+                dateFormat = isoDates[i][0];
+                allowTime = isoDates[i][2] !== false;
+                break;
+            }
+        }
+        if (dateFormat == null) {
+            config._isValid = false;
+            return;
+        }
+        if (match[3]) {
+            for (i = 0, l = isoTimesLen; i < l; i++) {
+                if (isoTimes[i][1].exec(match[3])) {
+                    // match[2] should be 'T' or space
+                    timeFormat = (match[2] || ' ') + isoTimes[i][0];
+                    break;
+                }
+            }
+            if (timeFormat == null) {
+                config._isValid = false;
+                return;
+            }
+        }
+        if (!allowTime && timeFormat != null) {
+            config._isValid = false;
+            return;
+        }
+        if (match[4]) {
+            if (tzRegex.exec(match[4])) {
+                tzFormat = 'Z';
+            } else {
+                config._isValid = false;
+                return;
+            }
+        }
+        config._f = dateFormat + (timeFormat || '') + (tzFormat || '');
+        configFromStringAndFormat(config);
+    } else {
+        config._isValid = false;
+    }
+}
+
+function extractFromRFC2822Strings(
+    yearStr,
+    monthStr,
+    dayStr,
+    hourStr,
+    minuteStr,
+    secondStr
+) {
+    var result = [
+        untruncateYear(yearStr),
+        defaultLocaleMonthsShort.indexOf(monthStr),
+        parseInt(dayStr, 10),
+        parseInt(hourStr, 10),
+        parseInt(minuteStr, 10),
+    ];
+
+    if (secondStr) {
+        result.push(parseInt(secondStr, 10));
+    }
+
+    return result;
+}
+
+function untruncateYear(yearStr) {
+    var year = parseInt(yearStr, 10);
+    if (year <= 49) {
+        return 2000 + year;
+    } else if (year <= 999) {
+        return 1900 + year;
+    }
+    return year;
+}
+
+function preprocessRFC2822(s) {
+    // Remove comments and folding whitespace and replace multiple-spaces with a single space
+    return s
+        .replace(/\([^()]*\)|[\n\t]/g, ' ')
+        .replace(/(\s\s+)/g, ' ')
+        .replace(/^\s\s*/, '')
+        .replace(/\s\s*$/, '');
+}
+
+function checkWeekday(weekdayStr, parsedInput, config) {
+    if (weekdayStr) {
+        // TODO: Replace the vanilla JS Date object with an independent day-of-week check.
+        var weekdayProvided = defaultLocaleWeekdaysShort.indexOf(weekdayStr),
+            weekdayActual = new Date(
+                parsedInput[0],
+                parsedInput[1],
+                parsedInput[2]
+            ).getDay();
+        if (weekdayProvided !== weekdayActual) {
+            getParsingFlags(config).weekdayMismatch = true;
+            config._isValid = false;
+            return false;
+        }
+    }
+    return true;
+}
+
+function calculateOffset(obsOffset, militaryOffset, numOffset) {
+    if (obsOffset) {
+        return obsOffsets[obsOffset];
+    } else if (militaryOffset) {
+        // the only allowed military tz is Z
+        return 0;
+    } else {
+        var hm = parseInt(numOffset, 10),
+            m = hm % 100,
+            h = (hm - m) / 100;
+        return h * 60 + m;
+    }
+}
+
+// date and time from ref 2822 format
+export function configFromRFC2822(config) {
+    var match = rfc2822.exec(preprocessRFC2822(config._i)),
+        parsedArray;
+    if (match) {
+        parsedArray = extractFromRFC2822Strings(
+            match[4],
+            match[3],
+            match[2],
+            match[5],
+            match[6],
+            match[7]
+        );
+        if (!checkWeekday(match[1], parsedArray, config)) {
+            return;
+        }
+
+        config._a = parsedArray;
+        config._tzm = calculateOffset(match[8], match[9], match[10]);
+
+        config._d = createUTCDate.apply(null, config._a);
+        config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
+
+        getParsingFlags(config).rfc2822 = true;
+    } else {
+        config._isValid = false;
+    }
+}
+
+// date from 1) ASP.NET, 2) ISO, 3) RFC 2822 formats, or 4) optional fallback if parsing isn't strict
+export function configFromString(config) {
+    var matched = aspNetJsonRegex.exec(config._i);
+    if (matched !== null) {
+        config._d = new Date(+matched[1]);
+        return;
+    }
+
+    configFromISO(config);
+    if (config._isValid === false) {
+        delete config._isValid;
+    } else {
+        return;
+    }
+
+    configFromRFC2822(config);
+    if (config._isValid === false) {
+        delete config._isValid;
+    } else {
+        return;
+    }
+
+    if (config._strict) {
+        config._isValid = false;
+    } else {
+        // Final attempt, use Input Fallback
+        hooks.createFromInputFallback(config);
+    }
+}
+
+hooks.createFromInputFallback = deprecate(
+    'value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' +
+        'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' +
+        'discouraged. Please refer to http://momentjs.com/guides/#/warnings/js-date/ for more info.',
+    function (config) {
+        config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));
+    }
+);
diff --git a/backend/node_modules/moment/src/lib/create/local.js b/backend/node_modules/moment/src/lib/create/local.js
new file mode 100644
index 0000000..732ea39
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/create/local.js
@@ -0,0 +1,5 @@
+import { createLocalOrUTC } from './from-anything';
+
+export function createLocal(input, format, locale, strict) {
+    return createLocalOrUTC(input, format, locale, strict, false);
+}
diff --git a/backend/node_modules/moment/src/lib/create/parsing-flags.js b/backend/node_modules/moment/src/lib/create/parsing-flags.js
new file mode 100644
index 0000000..65a377d
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/create/parsing-flags.js
@@ -0,0 +1,28 @@
+function defaultParsingFlags() {
+    // We need to deep clone this object.
+    return {
+        empty: false,
+        unusedTokens: [],
+        unusedInput: [],
+        overflow: -2,
+        charsLeftOver: 0,
+        nullInput: false,
+        invalidEra: null,
+        invalidMonth: null,
+        invalidFormat: false,
+        userInvalidated: false,
+        iso: false,
+        parsedDateParts: [],
+        era: null,
+        meridiem: null,
+        rfc2822: false,
+        weekdayMismatch: false,
+    };
+}
+
+export default function getParsingFlags(m) {
+    if (m._pf == null) {
+        m._pf = defaultParsingFlags();
+    }
+    return m._pf;
+}
diff --git a/backend/node_modules/moment/src/lib/create/utc.js b/backend/node_modules/moment/src/lib/create/utc.js
new file mode 100644
index 0000000..6081f07
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/create/utc.js
@@ -0,0 +1,5 @@
+import { createLocalOrUTC } from './from-anything';
+
+export function createUTC(input, format, locale, strict) {
+    return createLocalOrUTC(input, format, locale, strict, true).utc();
+}
diff --git a/backend/node_modules/moment/src/lib/create/valid.js b/backend/node_modules/moment/src/lib/create/valid.js
new file mode 100644
index 0000000..e4813c6
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/create/valid.js
@@ -0,0 +1,51 @@
+import extend from '../utils/extend';
+import { createUTC } from './utc';
+import getParsingFlags from '../create/parsing-flags';
+import some from '../utils/some';
+
+export function isValid(m) {
+    var flags = null,
+        parsedParts = false,
+        isNowValid = m._d && !isNaN(m._d.getTime());
+    if (isNowValid) {
+        flags = getParsingFlags(m);
+        parsedParts = some.call(flags.parsedDateParts, function (i) {
+            return i != null;
+        });
+        isNowValid =
+            flags.overflow < 0 &&
+            !flags.empty &&
+            !flags.invalidEra &&
+            !flags.invalidMonth &&
+            !flags.invalidWeekday &&
+            !flags.weekdayMismatch &&
+            !flags.nullInput &&
+            !flags.invalidFormat &&
+            !flags.userInvalidated &&
+            (!flags.meridiem || (flags.meridiem && parsedParts));
+        if (m._strict) {
+            isNowValid =
+                isNowValid &&
+                flags.charsLeftOver === 0 &&
+                flags.unusedTokens.length === 0 &&
+                flags.bigHour === undefined;
+        }
+    }
+    if (Object.isFrozen == null || !Object.isFrozen(m)) {
+        m._isValid = isNowValid;
+    } else {
+        return isNowValid;
+    }
+    return m._isValid;
+}
+
+export function createInvalid(flags) {
+    var m = createUTC(NaN);
+    if (flags != null) {
+        extend(getParsingFlags(m), flags);
+    } else {
+        getParsingFlags(m).userInvalidated = true;
+    }
+
+    return m;
+}
diff --git a/backend/node_modules/moment/src/lib/duration/abs.js b/backend/node_modules/moment/src/lib/duration/abs.js
new file mode 100644
index 0000000..d61ebe6
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/duration/abs.js
@@ -0,0 +1,18 @@
+var mathAbs = Math.abs;
+
+export function abs() {
+    var data = this._data;
+
+    this._milliseconds = mathAbs(this._milliseconds);
+    this._days = mathAbs(this._days);
+    this._months = mathAbs(this._months);
+
+    data.milliseconds = mathAbs(data.milliseconds);
+    data.seconds = mathAbs(data.seconds);
+    data.minutes = mathAbs(data.minutes);
+    data.hours = mathAbs(data.hours);
+    data.months = mathAbs(data.months);
+    data.years = mathAbs(data.years);
+
+    return this;
+}
diff --git a/backend/node_modules/moment/src/lib/duration/add-subtract.js b/backend/node_modules/moment/src/lib/duration/add-subtract.js
new file mode 100644
index 0000000..3755a7d
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/duration/add-subtract.js
@@ -0,0 +1,21 @@
+import { createDuration } from './create';
+
+function addSubtract(duration, input, value, direction) {
+    var other = createDuration(input, value);
+
+    duration._milliseconds += direction * other._milliseconds;
+    duration._days += direction * other._days;
+    duration._months += direction * other._months;
+
+    return duration._bubble();
+}
+
+// supports only 2.0-style add(1, 's') or add(duration)
+export function add(input, value) {
+    return addSubtract(this, input, value, 1);
+}
+
+// supports only 2.0-style subtract(1, 's') or subtract(duration)
+export function subtract(input, value) {
+    return addSubtract(this, input, value, -1);
+}
diff --git a/backend/node_modules/moment/src/lib/duration/as.js b/backend/node_modules/moment/src/lib/duration/as.js
new file mode 100644
index 0000000..a620d5b
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/duration/as.js
@@ -0,0 +1,76 @@
+import { daysToMonths, monthsToDays } from './bubble';
+import { normalizeUnits } from '../units/aliases';
+
+export function as(units) {
+    if (!this.isValid()) {
+        return NaN;
+    }
+    var days,
+        months,
+        milliseconds = this._milliseconds;
+
+    units = normalizeUnits(units);
+
+    if (units === 'month' || units === 'quarter' || units === 'year') {
+        days = this._days + milliseconds / 864e5;
+        months = this._months + daysToMonths(days);
+        switch (units) {
+            case 'month':
+                return months;
+            case 'quarter':
+                return months / 3;
+            case 'year':
+                return months / 12;
+        }
+    } else {
+        // handle milliseconds separately because of floating point math errors (issue #1867)
+        days = this._days + Math.round(monthsToDays(this._months));
+        switch (units) {
+            case 'week':
+                return days / 7 + milliseconds / 6048e5;
+            case 'day':
+                return days + milliseconds / 864e5;
+            case 'hour':
+                return days * 24 + milliseconds / 36e5;
+            case 'minute':
+                return days * 1440 + milliseconds / 6e4;
+            case 'second':
+                return days * 86400 + milliseconds / 1000;
+            // Math.floor prevents floating point math errors here
+            case 'millisecond':
+                return Math.floor(days * 864e5) + milliseconds;
+            default:
+                throw new Error('Unknown unit ' + units);
+        }
+    }
+}
+
+function makeAs(alias) {
+    return function () {
+        return this.as(alias);
+    };
+}
+
+var asMilliseconds = makeAs('ms'),
+    asSeconds = makeAs('s'),
+    asMinutes = makeAs('m'),
+    asHours = makeAs('h'),
+    asDays = makeAs('d'),
+    asWeeks = makeAs('w'),
+    asMonths = makeAs('M'),
+    asQuarters = makeAs('Q'),
+    asYears = makeAs('y'),
+    valueOf = asMilliseconds;
+
+export {
+    asMilliseconds,
+    asSeconds,
+    asMinutes,
+    asHours,
+    asDays,
+    asWeeks,
+    asMonths,
+    asQuarters,
+    asYears,
+    valueOf,
+};
diff --git a/backend/node_modules/moment/src/lib/duration/bubble.js b/backend/node_modules/moment/src/lib/duration/bubble.js
new file mode 100644
index 0000000..c7822e3
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/duration/bubble.js
@@ -0,0 +1,68 @@
+import absFloor from '../utils/abs-floor';
+import absCeil from '../utils/abs-ceil';
+
+export function bubble() {
+    var milliseconds = this._milliseconds,
+        days = this._days,
+        months = this._months,
+        data = this._data,
+        seconds,
+        minutes,
+        hours,
+        years,
+        monthsFromDays;
+
+    // if we have a mix of positive and negative values, bubble down first
+    // check: https://github.com/moment/moment/issues/2166
+    if (
+        !(
+            (milliseconds >= 0 && days >= 0 && months >= 0) ||
+            (milliseconds <= 0 && days <= 0 && months <= 0)
+        )
+    ) {
+        milliseconds += absCeil(monthsToDays(months) + days) * 864e5;
+        days = 0;
+        months = 0;
+    }
+
+    // The following code bubbles up values, see the tests for
+    // examples of what that means.
+    data.milliseconds = milliseconds % 1000;
+
+    seconds = absFloor(milliseconds / 1000);
+    data.seconds = seconds % 60;
+
+    minutes = absFloor(seconds / 60);
+    data.minutes = minutes % 60;
+
+    hours = absFloor(minutes / 60);
+    data.hours = hours % 24;
+
+    days += absFloor(hours / 24);
+
+    // convert days to months
+    monthsFromDays = absFloor(daysToMonths(days));
+    months += monthsFromDays;
+    days -= absCeil(monthsToDays(monthsFromDays));
+
+    // 12 months -> 1 year
+    years = absFloor(months / 12);
+    months %= 12;
+
+    data.days = days;
+    data.months = months;
+    data.years = years;
+
+    return this;
+}
+
+export function daysToMonths(days) {
+    // 400 years have 146097 days (taking into account leap year rules)
+    // 400 years have 12 months === 4800
+    return (days * 4800) / 146097;
+}
+
+export function monthsToDays(months) {
+    // the reverse of daysToMonths
+    return (months * 146097) / 4800;
+}
diff --git a/backend/node_modules/moment/src/lib/duration/clone.js b/backend/node_modules/moment/src/lib/duration/clone.js
new file mode 100644
index 0000000..8978dfe
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/duration/clone.js
@@ -0,0 +1,5 @@
+import { createDuration } from './create';
+
+export function clone() {
+    return createDuration(this);
+}
diff --git a/backend/node_modules/moment/src/lib/duration/constructor.js b/backend/node_modules/moment/src/lib/duration/constructor.js
new file mode 100644
index 0000000..6033769
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/duration/constructor.js
@@ -0,0 +1,42 @@
+import { normalizeObjectUnits } from '../units/aliases';
+import { getLocale } from '../locale/locales';
+import isDurationValid from './valid.js';
+
+export function Duration(duration) {
+    var normalizedInput = normalizeObjectUnits(duration),
+        years = normalizedInput.year || 0,
+        quarters = normalizedInput.quarter || 0,
+        months = normalizedInput.month || 0,
+        weeks = normalizedInput.week || normalizedInput.isoWeek || 0,
+        days = normalizedInput.day || 0,
+        hours = normalizedInput.hour || 0,
+        minutes = normalizedInput.minute || 0,
+        seconds = normalizedInput.second || 0,
+        milliseconds = normalizedInput.millisecond || 0;
+
+    this._isValid = isDurationValid(normalizedInput);
+
+    // representation for dateAddRemove
+    this._milliseconds =
+        +milliseconds +
+        seconds * 1e3 + // 1000
+        minutes * 6e4 + // 1000 * 60
+        hours * 1000 * 60 * 60; //using 1000 * 60 * 60 instead of 36e5 to avoid floating point rounding errors https://github.com/moment/moment/issues/2978
+    // Because of dateAddRemove treats 24 hours as different from a
+    // day when working around DST, we need to store them separately
+    this._days = +days + weeks * 7;
+    // It is impossible to translate months into days without knowing
+    // which months you are are talking about, so we have to store
+    // it separately.
+    this._months = +months + quarters * 3 + years * 12;
+
+    this._data = {};
+
+    this._locale = getLocale();
+
+    this._bubble();
+}
+
+export function isDuration(obj) {
+    return obj instanceof Duration;
+}
diff --git a/backend/node_modules/moment/src/lib/duration/create.js b/backend/node_modules/moment/src/lib/duration/create.js
new file mode 100644
index 0000000..a82c376
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/duration/create.js
@@ -0,0 +1,133 @@
+import { Duration, isDuration } from './constructor';
+import isNumber from '../utils/is-number';
+import toInt from '../utils/to-int';
+import absRound from '../utils/abs-round';
+import hasOwnProp from '../utils/has-own-prop';
+import { DATE, HOUR, MINUTE, SECOND, MILLISECOND } from '../units/constants';
+import { cloneWithOffset } from '../units/offset';
+import { createLocal } from '../create/local';
+import { createInvalid as invalid } from './valid';
+
+// ASP.NET json date format regex
+var aspNetRegex = /^(-|\+)?(?:(\d*)[. ])?(\d+):(\d+)(?::(\d+)(\.\d*)?)?$/,
+    // from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html
+    // somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere
+    // and further modified to allow for strings containing both week and day
+    isoRegex =
+        /^(-|\+)?P(?:([-+]?[0-9,.]*)Y)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)W)?(?:([-+]?[0-9,.]*)D)?(?:T(?:([-+]?[0-9,.]*)H)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)S)?)?$/;
+
+export function createDuration(input, key) {
+    var duration = input,
+        // matching against regexp is expensive, do it on demand
+        match = null,
+        sign,
+        ret,
+        diffRes;
+
+    if (isDuration(input)) {
+        duration = {
+            ms: input._milliseconds,
+            d: input._days,
+            M: input._months,
+        };
+    } else if (isNumber(input) || !isNaN(+input)) {
+        duration = {};
+        if (key) {
+            duration[key] = +input;
+        } else {
+            duration.milliseconds = +input;
+        }
+    } else if ((match = aspNetRegex.exec(input))) {
+        sign = match[1] === '-' ? -1 : 1;
+        duration = {
+            y: 0,
+            d: toInt(match[DATE]) * sign,
+            h: toInt(match[HOUR]) * sign,
+            m: toInt(match[MINUTE]) * sign,
+            s: toInt(match[SECOND]) * sign,
+            ms: toInt(absRound(match[MILLISECOND] * 1000)) * sign, // the millisecond decimal point is included in the match
+        };
+    } else if ((match = isoRegex.exec(input))) {
+        sign = match[1] === '-' ? -1 : 1;
+        duration = {
+            y: parseIso(match[2], sign),
+            M: parseIso(match[3], sign),
+            w: parseIso(match[4], sign),
+            d: parseIso(match[5], sign),
+            h: parseIso(match[6], sign),
+            m: parseIso(match[7], sign),
+            s: parseIso(match[8], sign),
+        };
+    } else if (duration == null) {
+        // checks for null or undefined
+        duration = {};
+    } else if (
+        typeof duration === 'object' &&
+        ('from' in duration || 'to' in duration)
+    ) {
+        diffRes = momentsDifference(
+            createLocal(duration.from),
+            createLocal(duration.to)
+        );
+
+        duration = {};
+        duration.ms = diffRes.milliseconds;
+        duration.M = diffRes.months;
+    }
+
+    ret = new Duration(duration);
+
+    if (isDuration(input) && hasOwnProp(input, '_locale')) {
+        ret._locale = input._locale;
+    }
+
+    if (isDuration(input) && hasOwnProp(input, '_isValid')) {
+        ret._isValid = input._isValid;
+    }
+
+    return ret;
+}
+
+createDuration.fn = Duration.prototype;
+createDuration.invalid = invalid;
+
+function parseIso(inp, sign) {
+    // We'd normally use ~~inp for this, but unfortunately it also
+    // converts floats to ints.
+    // inp may be undefined, so careful calling replace on it.
+    var res = inp && parseFloat(inp.replace(',', '.'));
+    // apply sign while we're at it
+    return (isNaN(res) ? 0 : res) * sign;
+}
+
+function positiveMomentsDifference(base, other) {
+    var res = {};
+
+    res.months =
+        other.month() - base.month() + (other.year() - base.year()) * 12;
+    if (base.clone().add(res.months, 'M').isAfter(other)) {
+        --res.months;
+    }
+
+    res.milliseconds = +other - +base.clone().add(res.months, 'M');
+
+    return res;
+}
+
+function momentsDifference(base, other) {
+    var res;
+    if (!(base.isValid() && other.isValid())) {
+        return { milliseconds: 0, months: 0 };
+    }
+
+    other = cloneWithOffset(other, base);
+    if (base.isBefore(other)) {
+        res = positiveMomentsDifference(base, other);
+    } else {
+        res = positiveMomentsDifference(other, base);
+        res.milliseconds = -res.milliseconds;
+        res.months = -res.months;
+    }
+
+    return res;
+}
diff --git a/backend/node_modules/moment/src/lib/duration/duration.js b/backend/node_modules/moment/src/lib/duration/duration.js
new file mode 100644
index 0000000..10f03a7
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/duration/duration.js
@@ -0,0 +1,16 @@
+// Side effect imports
+import './prototype';
+
+import { createDuration } from './create';
+import { isDuration } from './constructor';
+import {
+    getSetRelativeTimeRounding,
+    getSetRelativeTimeThreshold,
+} from './humanize';
+
+export {
+    createDuration,
+    isDuration,
+    getSetRelativeTimeRounding,
+    getSetRelativeTimeThreshold,
+};
diff --git a/backend/node_modules/moment/src/lib/duration/get.js b/backend/node_modules/moment/src/lib/duration/get.js
new file mode 100644
index 0000000..99533d7
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/duration/get.js
@@ -0,0 +1,27 @@
+import { normalizeUnits } from '../units/aliases';
+import absFloor from '../utils/abs-floor';
+
+export function get(units) {
+    units = normalizeUnits(units);
+    return this.isValid() ? this[units + 's']() : NaN;
+}
+
+function makeGetter(name) {
+    return function () {
+        return this.isValid() ? this._data[name] : NaN;
+    };
+}
+
+var milliseconds = makeGetter('milliseconds'),
+    seconds = makeGetter('seconds'),
+    minutes = makeGetter('minutes'),
+    hours = makeGetter('hours'),
+    days = makeGetter('days'),
+    months = makeGetter('months'),
+    years = makeGetter('years');
+
+export { milliseconds, seconds, minutes, hours, days, months, years };
+
+export function weeks() {
+    return absFloor(this.days() / 7);
+}
diff --git a/backend/node_modules/moment/src/lib/duration/humanize.js b/backend/node_modules/moment/src/lib/duration/humanize.js
new file mode 100644
index 0000000..74079cd
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/duration/humanize.js
@@ -0,0 +1,114 @@
+import { createDuration } from './create';
+
+var round = Math.round,
+    thresholds = {
+        ss: 44, // a few seconds to seconds
+        s: 45, // seconds to minute
+        m: 45, // minutes to hour
+        h: 22, // hours to day
+        d: 26, // days to month/week
+        w: null, // weeks to month
+        M: 11, // months to year
+    };
+
+// helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize
+function substituteTimeAgo(string, number, withoutSuffix, isFuture, locale) {
+    return locale.relativeTime(number || 1, !!withoutSuffix, string, isFuture);
+}
+
+function relativeTime(posNegDuration, withoutSuffix, thresholds, locale) {
+    var duration = createDuration(posNegDuration).abs(),
+        seconds = round(duration.as('s')),
+        minutes = round(duration.as('m')),
+        hours = round(duration.as('h')),
+        days = round(duration.as('d')),
+        months = round(duration.as('M')),
+        weeks = round(duration.as('w')),
+        years = round(duration.as('y')),
+        a =
+            (seconds <= thresholds.ss && ['s', seconds]) ||
+            (seconds < thresholds.s && ['ss', seconds]) ||
+            (minutes <= 1 && ['m']) ||
+            (minutes < thresholds.m && ['mm', minutes]) ||
+            (hours <= 1 && ['h']) ||
+            (hours < thresholds.h && ['hh', hours]) ||
+            (days <= 1 && ['d']) ||
+            (days < thresholds.d && ['dd', days]);
+
+    if (thresholds.w != null) {
+        a =
+            a ||
+            (weeks <= 1 && ['w']) ||
+            (weeks < thresholds.w && ['ww', weeks]);
+    }
+    a = a ||
+        (months <= 1 && ['M']) ||
+        (months < thresholds.M && ['MM', months]) ||
+        (years <= 1 && ['y']) || ['yy', years];
+
+    a[2] = withoutSuffix;
+    a[3] = +posNegDuration > 0;
+    a[4] = locale;
+    return substituteTimeAgo.apply(null, a);
+}
+
+// This function allows you to set the rounding function for relative time strings
+export function getSetRelativeTimeRounding(roundingFunction) {
+    if (roundingFunction === undefined) {
+        return round;
+    }
+    if (typeof roundingFunction === 'function') {
+        round = roundingFunction;
+        return true;
+    }
+    return false;
+}
+
+// This function allows you to set a threshold for relative time strings
+export function getSetRelativeTimeThreshold(threshold, limit) {
+    if (thresholds[threshold] === undefined) {
+        return false;
+    }
+    if (limit === undefined) {
+        return thresholds[threshold];
+    }
+    thresholds[threshold] = limit;
+    if (threshold === 's') {
+        thresholds.ss = limit - 1;
+    }
+    return true;
+}
+
+export function humanize(argWithSuffix, argThresholds) {
+    if (!this.isValid()) {
+        return this.localeData().invalidDate();
+    }
+
+    var withSuffix = false,
+        th = thresholds,
+        locale,
+        output;
+
+    if (typeof argWithSuffix === 'object') {
+        argThresholds = argWithSuffix;
+        argWithSuffix = false;
+    }
+    if (typeof argWithSuffix === 'boolean') {
+        withSuffix = argWithSuffix;
+    }
+    if (typeof argThresholds === 'object') {
+        th = Object.assign({}, thresholds, argThresholds);
+        if (argThresholds.s != null && argThresholds.ss == null) {
+            th.ss = argThresholds.s - 1;
+        }
+    }
+
+    locale = this.localeData();
+    output = relativeTime(this, !withSuffix, th, locale);
+
+    if (withSuffix) {
+        output = locale.pastFuture(+this, output);
+    }
+
+    return locale.postformat(output);
+}
diff --git a/backend/node_modules/moment/src/lib/duration/iso-string.js b/backend/node_modules/moment/src/lib/duration/iso-string.js
new file mode 100644
index 0000000..5fd2166
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/duration/iso-string.js
@@ -0,0 +1,68 @@
+import absFloor from '../utils/abs-floor';
+var abs = Math.abs;
+
+function sign(x) {
+    return (x > 0) - (x < 0) || +x;
+}
+
+export function toISOString() {
+    // for ISO strings we do not use the normal bubbling rules:
+    //  * milliseconds bubble up until they become hours
+    //  * days do not bubble at all
+    //  * months bubble up until they become years
+    // This is because there is no context-free conversion between hours and days
+    // (think of clock changes)
+    // and also not between days and months (28-31 days per month)
+    if (!this.isValid()) {
+        return this.localeData().invalidDate();
+    }
+
+    var seconds = abs(this._milliseconds) / 1000,
+        days = abs(this._days),
+        months = abs(this._months),
+        minutes,
+        hours,
+        years,
+        s,
+        total = this.asSeconds(),
+        totalSign,
+        ymSign,
+        daysSign,
+        hmsSign;
+
+    if (!total) {
+        // this is the same as C#'s (Noda) and python (isodate)...
+        // but not other JS (goog.date)
+        return 'P0D';
+    }
+
+    // 3600 seconds -> 60 minutes -> 1 hour
+    minutes = absFloor(seconds / 60);
+    hours = absFloor(minutes / 60);
+    seconds %= 60;
+    minutes %= 60;
+
+    // 12 months -> 1 year
+    years = absFloor(months / 12);
+    months %= 12;
+
+    // inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js
+    s = seconds ? seconds.toFixed(3).replace(/\.?0+$/, '') : '';
+
+    totalSign = total < 0 ? '-' : '';
+    ymSign = sign(this._months) !== sign(total) ? '-' : '';
+    daysSign = sign(this._days) !== sign(total) ? '-' : '';
+    hmsSign = sign(this._milliseconds) !== sign(total) ? '-' : '';
+
+    return (
+        totalSign +
+        'P' +
+        (years ? ymSign + years + 'Y' : '') +
+        (months ? ymSign + months + 'M' : '') +
+        (days ? daysSign + days + 'D' : '') +
+        (hours || minutes || seconds ? 'T' : '') +
+        (hours ? hmsSign + hours + 'H' : '') +
+        (minutes ? hmsSign + minutes + 'M' : '') +
+        (seconds ? hmsSign + s + 'S' : '')
+    );
+}
diff --git a/backend/node_modules/moment/src/lib/duration/prototype.js b/backend/node_modules/moment/src/lib/duration/prototype.js
new file mode 100644
index 0000000..3f24b4a
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/duration/prototype.js
@@ -0,0 +1,78 @@
+import { Duration } from './constructor';
+
+var proto = Duration.prototype;
+
+import { abs } from './abs';
+import { add, subtract } from './add-subtract';
+import {
+    as,
+    asMilliseconds,
+    asSeconds,
+    asMinutes,
+    asHours,
+    asDays,
+    asWeeks,
+    asMonths,
+    asQuarters,
+    asYears,
+    valueOf,
+} from './as';
+import { bubble } from './bubble';
+import { clone } from './clone';
+import {
+    get,
+    milliseconds,
+    seconds,
+    minutes,
+    hours,
+    days,
+    months,
+    years,
+    weeks,
+} from './get';
+import { humanize } from './humanize';
+import { toISOString } from './iso-string';
+import { lang, locale, localeData } from '../moment/locale';
+import { isValid } from './valid';
+
+proto.isValid = isValid;
+proto.abs = abs;
+proto.add = add;
+proto.subtract = subtract;
+proto.as = as;
+proto.asMilliseconds = asMilliseconds;
+proto.asSeconds = asSeconds;
+proto.asMinutes = asMinutes;
+proto.asHours = asHours;
+proto.asDays = asDays;
+proto.asWeeks = asWeeks;
+proto.asMonths = asMonths;
+proto.asQuarters = asQuarters;
+proto.asYears = asYears;
+proto.valueOf = valueOf;
+proto._bubble = bubble;
+proto.clone = clone;
+proto.get = get;
+proto.milliseconds = milliseconds;
+proto.seconds = seconds;
+proto.minutes = minutes;
+proto.hours = hours;
+proto.days = days;
+proto.weeks = weeks;
+proto.months = months;
+proto.years = years;
+proto.humanize = humanize;
+proto.toISOString = toISOString;
+proto.toString = toISOString;
+proto.toJSON = toISOString;
+proto.locale = locale;
+proto.localeData = localeData;
+
+// Deprecations
+import { deprecate } from '../utils/deprecate';
+
+proto.toIsoString = deprecate(
+    'toIsoString() is deprecated. Please use toISOString() instead (notice the capitals)',
+    toISOString
+);
+proto.lang = lang;
diff --git a/backend/node_modules/moment/src/lib/duration/valid.js b/backend/node_modules/moment/src/lib/duration/valid.js
new file mode 100644
index 0000000..88ef7a9
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/duration/valid.js
@@ -0,0 +1,55 @@
+import hasOwnProp from '../utils/has-own-prop';
+import toInt from '../utils/to-int';
+import indexOf from '../utils/index-of';
+import { createDuration } from './create';
+
+var ordering = [
+    'year',
+    'quarter',
+    'month',
+    'week',
+    'day',
+    'hour',
+    'minute',
+    'second',
+    'millisecond',
+];
+
+export default function isDurationValid(m) {
+    var key,
+        unitHasDecimal = false,
+        i,
+        orderLen = ordering.length;
+    for (key in m) {
+        if (
+            hasOwnProp(m, key) &&
+            !(
+                indexOf.call(ordering, key) !== -1 &&
+                (m[key] == null || !isNaN(m[key]))
+            )
+        ) {
+            return false;
+        }
+    }
+
+    for (i = 0; i < orderLen; ++i) {
+        if (m[ordering[i]]) {
+            if (unitHasDecimal) {
+                return false; // only allow non-integers for smallest unit
+            }
+            if (parseFloat(m[ordering[i]]) !== toInt(m[ordering[i]])) {
+                unitHasDecimal = true;
+            }
+        }
+    }
+
+    return true;
+}
+
+export function isValid() {
+    return this._isValid;
+}
+
+export function createInvalid() {
+    return createDuration(NaN);
+}
diff --git a/backend/node_modules/moment/src/lib/format/format.js b/backend/node_modules/moment/src/lib/format/format.js
new file mode 100644
index 0000000..7abe260
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/format/format.js
@@ -0,0 +1,104 @@
+import zeroFill from '../utils/zero-fill';
+import isFunction from '../utils/is-function';
+
+var formattingTokens =
+        /(\[[^\[]*\])|(\\)?([Hh]mm(ss)?|Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Qo?|N{1,5}|YYYYYY|YYYYY|YYYY|YY|y{2,4}|yo?|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|kk?|mm?|ss?|S{1,9}|x|X|zz?|ZZ?|.)/g,
+    localFormattingTokens = /(\[[^\[]*\])|(\\)?(LTS|LT|LL?L?L?|l{1,4})/g,
+    formatFunctions = {},
+    formatTokenFunctions = {};
+
+export { formattingTokens, formatTokenFunctions };
+
+// token:    'M'
+// padded:   ['MM', 2]
+// ordinal:  'Mo'
+// callback: function () { this.month() + 1 }
+export function addFormatToken(token, padded, ordinal, callback) {
+    var func = callback;
+    if (typeof callback === 'string') {
+        func = function () {
+            return this[callback]();
+        };
+    }
+    if (token) {
+        formatTokenFunctions[token] = func;
+    }
+    if (padded) {
+        formatTokenFunctions[padded[0]] = function () {
+            return zeroFill(func.apply(this, arguments), padded[1], padded[2]);
+        };
+    }
+    if (ordinal) {
+        formatTokenFunctions[ordinal] = function () {
+            return this.localeData().ordinal(
+                func.apply(this, arguments),
+                token
+            );
+        };
+    }
+}
+
+function removeFormattingTokens(input) {
+    if (input.match(/\[[\s\S]/)) {
+        return input.replace(/^\[|\]$/g, '');
+    }
+    return input.replace(/\\/g, '');
+}
+
+function makeFormatFunction(format) {
+    var array = format.match(formattingTokens),
+        i,
+        length;
+
+    for (i = 0, length = array.length; i < length; i++) {
+        if (formatTokenFunctions[array[i]]) {
+            array[i] = formatTokenFunctions[array[i]];
+        } else {
+            array[i] = removeFormattingTokens(array[i]);
+        }
+    }
+
+    return function (mom) {
+        var output = '',
+            i;
+        for (i = 0; i < length; i++) {
+            output += isFunction(array[i])
+                ? array[i].call(mom, format)
+                : array[i];
+        }
+        return output;
+    };
+}
+
+// format date using native date object
+export function formatMoment(m, format) {
+    if (!m.isValid()) {
+        return m.localeData().invalidDate();
+    }
+
+    format = expandFormat(format, m.localeData());
+    formatFunctions[format] =
+        formatFunctions[format] || makeFormatFunction(format);
+
+    return formatFunctions[format](m);
+}
+
+export function expandFormat(format, locale) {
+    var i = 5;
+
+    function replaceLongDateFormatTokens(input) {
+        return locale.longDateFormat(input) || input;
+    }
+
+    localFormattingTokens.lastIndex = 0;
+    while (i >= 0 && localFormattingTokens.test(format)) {
+        format = format.replace(
+            localFormattingTokens,
+            replaceLongDateFormatTokens
+        );
+        localFormattingTokens.lastIndex = 0;
+        i -= 1;
+    }
+
+    return format;
+}
diff --git a/backend/node_modules/moment/src/lib/locale/base-config.js b/backend/node_modules/moment/src/lib/locale/base-config.js
new file mode 100644
index 0000000..5f8c403
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/locale/base-config.js
@@ -0,0 +1,41 @@
+import { defaultCalendar } from './calendar';
+import { defaultLongDateFormat } from './formats';
+import { defaultInvalidDate } from './invalid';
+import { defaultOrdinal, defaultDayOfMonthOrdinalParse } from './ordinal';
+import { defaultRelativeTime } from './relative';
+
+// months
+import { defaultLocaleMonths, defaultLocaleMonthsShort } from '../units/month';
+
+// week
+import { defaultLocaleWeek } from '../units/week';
+
+// weekdays
+import {
+    defaultLocaleWeekdays,
+    defaultLocaleWeekdaysMin,
+    defaultLocaleWeekdaysShort,
+} from '../units/day-of-week';
+
+// meridiem
+import { defaultLocaleMeridiemParse } from '../units/hour';
+
+export var baseConfig = {
+    calendar: defaultCalendar,
+    longDateFormat: defaultLongDateFormat,
+    invalidDate: defaultInvalidDate,
+    ordinal: defaultOrdinal,
+    dayOfMonthOrdinalParse: defaultDayOfMonthOrdinalParse,
+    relativeTime: defaultRelativeTime,
+
+    months: defaultLocaleMonths,
+    monthsShort: defaultLocaleMonthsShort,
+
+    week: defaultLocaleWeek,
+
+    weekdays: defaultLocaleWeekdays,
+    weekdaysMin: defaultLocaleWeekdaysMin,
+    weekdaysShort: defaultLocaleWeekdaysShort,
+
+    meridiemParse: defaultLocaleMeridiemParse,
+};
diff --git a/backend/node_modules/moment/src/lib/locale/calendar.js b/backend/node_modules/moment/src/lib/locale/calendar.js
new file mode 100644
index 0000000..52c6ba5
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/locale/calendar.js
@@ -0,0 +1,15 @@
+export var defaultCalendar = {
+    sameDay: '[Today at] LT',
+    nextDay: '[Tomorrow at] LT',
+    nextWeek: 'dddd [at] LT',
+    lastDay: '[Yesterday at] LT',
+    lastWeek: '[Last] dddd [at] LT',
+    sameElse: 'L',
+};
+
+import isFunction from '../utils/is-function';
+
+export function calendar(key, mom, now) {
+    var output = this._calendar[key] || this._calendar['sameElse'];
+    return isFunction(output) ? output.call(mom, now) : output;
+}
diff --git a/backend/node_modules/moment/src/lib/locale/constructor.js b/backend/node_modules/moment/src/lib/locale/constructor.js
new file mode 100644
index 0000000..c32b73e
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/locale/constructor.js
@@ -0,0 +1,5 @@
+export function Locale(config) {
+    if (config != null) {
+        this.set(config);
+    }
+}
diff --git a/backend/node_modules/moment/src/lib/locale/en.js b/backend/node_modules/moment/src/lib/locale/en.js
new file mode 100644
index 0000000..22578a8
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/locale/en.js
@@ -0,0 +1,39 @@
+import './prototype';
+import { getSetGlobalLocale } from './locales';
+import toInt from '../utils/to-int';
+
+getSetGlobalLocale('en', {
+    eras: [
+        {
+            since: '0001-01-01',
+            until: +Infinity,
+            offset: 1,
+            name: 'Anno Domini',
+            narrow: 'AD',
+            abbr: 'AD',
+        },
+        {
+            since: '0000-12-31',
+            until: -Infinity,
+            offset: 1,
+            name: 'Before Christ',
+            narrow: 'BC',
+            abbr: 'BC',
+        },
+    ],
+    dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
+    ordinal: function (number) {
+        var b = number % 10,
+            output =
+                toInt((number % 100) / 10) === 1
+                    ? 'th'
+                    : b === 1
+                      ? 'st'
+                      : b === 2
+                        ? 'nd'
+                        : b === 3
+                          ? 'rd'
+                          : 'th';
+        return number + output;
+    },
+});
diff --git a/backend/node_modules/moment/src/lib/locale/formats.js b/backend/node_modules/moment/src/lib/locale/formats.js
new file mode 100644
index 0000000..ea74837
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/locale/formats.js
@@ -0,0 +1,36 @@
+import { formattingTokens } from '../format/format';
+
+export var defaultLongDateFormat = {
+    LTS: 'h:mm:ss A',
+    LT: 'h:mm A',
+    L: 'MM/DD/YYYY',
+    LL: 'MMMM D, YYYY',
+    LLL: 'MMMM D, YYYY h:mm A',
+    LLLL: 'dddd, MMMM D, YYYY h:mm A',
+};
+
+export function longDateFormat(key) {
+    var format = this._longDateFormat[key],
+        formatUpper = this._longDateFormat[key.toUpperCase()];
+
+    if (format || !formatUpper) {
+        return format;
+    }
+
+    this._longDateFormat[key] = formatUpper
+        .match(formattingTokens)
+        .map(function (tok) {
+            if (
+                tok === 'MMMM' ||
+                tok === 'MM' ||
+                tok === 'DD' ||
+                tok === 'dddd'
+            ) {
+                return tok.slice(1);
+            }
+            return tok;
+        })
+        .join('');
+
+    return this._longDateFormat[key];
+}
diff --git a/backend/node_modules/moment/src/lib/locale/invalid.js b/backend/node_modules/moment/src/lib/locale/invalid.js
new file mode 100644
index 0000000..baf1a86
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/locale/invalid.js
@@ -0,0 +1,5 @@
+export var defaultInvalidDate = 'Invalid date';
+
+export function invalidDate() {
+    return this._invalidDate;
+}
diff --git a/backend/node_modules/moment/src/lib/locale/lists.js b/backend/node_modules/moment/src/lib/locale/lists.js
new file mode 100644
index 0000000..9470d07
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/locale/lists.js
@@ -0,0 +1,93 @@
+import isNumber from '../utils/is-number';
+import { getLocale } from './locales';
+import { createUTC } from '../create/utc';
+
+function get(format, index, field, setter) {
+    var locale = getLocale(),
+        utc = createUTC().set(setter, index);
+    return locale[field](utc, format);
+}
+
+function listMonthsImpl(format, index, field) {
+    if (isNumber(format)) {
+        index = format;
+        format = undefined;
+    }
+
+    format = format || '';
+
+    if (index != null) {
+        return get(format, index, field, 'month');
+    }
+
+    var i,
+        out = [];
+    for (i = 0; i < 12; i++) {
+        out[i] = get(format, i, field, 'month');
+    }
+    return out;
+}
+
+// ()
+// (5)
+// (fmt, 5)
+// (fmt)
+// (true)
+// (true, 5)
+// (true, fmt, 5)
+// (true, fmt)
+function listWeekdaysImpl(localeSorted, format, index, field) {
+    if (typeof localeSorted === 'boolean') {
+        if (isNumber(format)) {
+            index = format;
+            format = undefined;
+        }
+
+        format = format || '';
+    } else {
+        format = localeSorted;
+        index = format;
+        localeSorted = false;
+
+        if (isNumber(format)) {
+            index = format;
+            format = undefined;
+        }
+
+        format = format || '';
+    }
+
+    var locale = getLocale(),
+        shift = localeSorted ? locale._week.dow : 0,
+        i,
+        out = [];
+
+    if (index != null) {
+        return get(format, (index + shift) % 7, field, 'day');
+    }
+
+    for (i = 0; i < 7; i++) {
+        out[i] = get(format, (i + shift) % 7, field, 'day');
+    }
+    return out;
+}
+
+export function listMonths(format, index) {
+    return listMonthsImpl(format, index, 'months');
+}
+
+export function listMonthsShort(format, index) {
+    return listMonthsImpl(format, index, 'monthsShort');
+}
+
+export function listWeekdays(localeSorted, format, index) {
+    return listWeekdaysImpl(localeSorted, format, index, 'weekdays');
+}
+
+export function listWeekdaysShort(localeSorted, format, index) {
+    return listWeekdaysImpl(localeSorted, format, index, 'weekdaysShort');
+}
+
+export function listWeekdaysMin(localeSorted, format, index) {
+    return listWeekdaysImpl(localeSorted, format, index, 'weekdaysMin');
+}
diff --git a/backend/node_modules/moment/src/lib/locale/locale.js b/backend/node_modules/moment/src/lib/locale/locale.js
new file mode 100644
index 0000000..522e36d
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/locale/locale.js
@@ -0,0 +1,45 @@
+// Side effect imports
+import './prototype';
+
+import {
+    getSetGlobalLocale,
+    defineLocale,
+    updateLocale,
+    getLocale,
+    listLocales,
+} from './locales';
+
+import {
+    listMonths,
+    listMonthsShort,
+    listWeekdays,
+    listWeekdaysShort,
+    listWeekdaysMin,
+} from './lists';
+
+export {
+    getSetGlobalLocale,
+    defineLocale,
+    updateLocale,
+    getLocale,
+    listLocales,
+    listMonths,
+    listMonthsShort,
+    listWeekdays,
+    listWeekdaysShort,
+    listWeekdaysMin,
+};
+
+import { deprecate } from '../utils/deprecate';
+import { hooks } from '../utils/hooks';
+
+hooks.lang = deprecate(
+    'moment.lang is deprecated. Use moment.locale instead.',
+    getSetGlobalLocale
+);
+hooks.langData = deprecate(
+    'moment.langData is deprecated. Use moment.localeData instead.',
+    getLocale
+);
+
+import './en';
diff --git a/backend/node_modules/moment/src/lib/locale/locales.js b/backend/node_modules/moment/src/lib/locale/locales.js
new file mode 100644
index 0000000..721594a
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/locale/locales.js
@@ -0,0 +1,249 @@
+import isArray from '../utils/is-array';
+import isUndefined from '../utils/is-undefined';
+import { deprecateSimple } from '../utils/deprecate';
+import { mergeConfigs } from './set';
+import { Locale } from './constructor';
+import keys from '../utils/keys';
+
+import { baseConfig } from './base-config';
+
+// internal storage for locale config files
+var locales = {},
+    localeFamilies = {},
+    globalLocale;
+
+function commonPrefix(arr1, arr2) {
+    var i,
+        minl = Math.min(arr1.length, arr2.length);
+    for (i = 0; i < minl; i += 1) {
+        if (arr1[i] !== arr2[i]) {
+            return i;
+        }
+    }
+    return minl;
+}
+
+function normalizeLocale(key) {
+    return key ? key.toLowerCase().replace('_', '-') : key;
+}
+
+// pick the locale from the array
+// try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each
+// substring from most specific to least, but move to the next array item if it's a more specific variant than the current root
+function chooseLocale(names) {
+    var i = 0,
+        j,
+        next,
+        locale,
+        split;
+
+    while (i < names.length) {
+        split = normalizeLocale(names[i]).split('-');
+        j = split.length;
+        next = normalizeLocale(names[i + 1]);
+        next = next ? next.split('-') : null;
+        while (j > 0) {
+            locale = loadLocale(split.slice(0, j).join('-'));
+            if (locale) {
+                return locale;
+            }
+            if (
+                next &&
+                next.length >= j &&
+                commonPrefix(split, next) >= j - 1
+            ) {
+                //the next array item is better than a shallower substring of this one
+                break;
+            }
+            j--;
+        }
+        i++;
+    }
+    return globalLocale;
+}
+
+function isLocaleNameSane(name) {
+    // Prevent names that look like filesystem paths, i.e contain '/' or '\'
+    // Ensure name is available and function returns boolean
+    return !!(name && name.match('^[^/\\\\]*$'));
+}
+
+function loadLocale(name) {
+    var oldLocale = null,
+        aliasedRequire;
+    // TODO: Find a better way to register and load all the locales in Node
+    if (
+        locales[name] === undefined &&
+        typeof module !== 'undefined' &&
+        module &&
+        module.exports &&
+        isLocaleNameSane(name)
+    ) {
+        try {
+            oldLocale = globalLocale._abbr;
+            aliasedRequire = require;
+            aliasedRequire('./locale/' + name);
+            getSetGlobalLocale(oldLocale);
+        } catch (e) {
+            // mark as not found to avoid repeating expensive file require call causing high CPU
+            // when trying to find en-US, en_US, en-us for every format call
+            locales[name] = null; // null means not found
+        }
+    }
+    return locales[name];
+}
+
+// This function will load locale and then set the global locale.  If
+// no arguments are passed in, it will simply return the current global
+// locale key.
+export function getSetGlobalLocale(key, values) {
+    var data;
+    if (key) {
+        if (isUndefined(values)) {
+            data = getLocale(key);
+        } else {
+            data = defineLocale(key, values);
+        }
+
+        if (data) {
+            // moment.duration._locale = moment._locale = data;
+            globalLocale = data;
+        } else {
+            if (typeof console !== 'undefined' && console.warn) {
+                //warn user if arguments are passed but the locale could not be set
+                console.warn(
+                    'Locale ' + key + ' not found. Did you forget to load it?'
+                );
+            }
+        }
+    }
+
+    return globalLocale._abbr;
+}
+
+export function defineLocale(name, config) {
+    if (config !== null) {
+        var locale,
+            parentConfig = baseConfig;
+        config.abbr = name;
+        if (locales[name] != null) {
+            deprecateSimple(
+                'defineLocaleOverride',
+                'use moment.updateLocale(localeName, config) to change ' +
+                    'an existing locale. moment.defineLocale(localeName, ' +
+                    'config) should only be used for creating a new locale ' +
+                    'See http://momentjs.com/guides/#/warnings/define-locale/ for more info.'
+            );
+            parentConfig = locales[name]._config;
+        } else if (config.parentLocale != null) {
+            if (locales[config.parentLocale] != null) {
+                parentConfig = locales[config.parentLocale]._config;
+            } else {
+                locale = loadLocale(config.parentLocale);
+                if (locale != null) {
+                    parentConfig = locale._config;
+                } else {
+                    if (!localeFamilies[config.parentLocale]) {
+                        localeFamilies[config.parentLocale] = [];
+                    }
+                    localeFamilies[config.parentLocale].push({
+                        name: name,
+                        config: config,
+                    });
+                    return null;
+                }
+            }
+        }
+        locales[name] = new Locale(mergeConfigs(parentConfig, config));
+
+        if (localeFamilies[name]) {
+            localeFamilies[name].forEach(function (x) {
+                defineLocale(x.name, x.config);
+            });
+        }
+
+        // backwards compat for now: also set the locale
+        // make sure we set the locale AFTER all child locales have been
+        // created, so we won't end up with the child locale set.
+        getSetGlobalLocale(name);
+
+        return locales[name];
+    } else {
+        // useful for testing
+        delete locales[name];
+        return null;
+    }
+}
+
+export function updateLocale(name, config) {
+    if (config != null) {
+        var locale,
+            tmpLocale,
+            parentConfig = baseConfig;
+
+        if (locales[name] != null && locales[name].parentLocale != null) {
+            // Update existing child locale in-place to avoid memory-leaks
+            locales[name].set(mergeConfigs(locales[name]._config, config));
+        } else {
+            // MERGE
+            tmpLocale = loadLocale(name);
+            if (tmpLocale != null) {
+                parentConfig = tmpLocale._config;
+            }
+            config = mergeConfigs(parentConfig, config);
+            if (tmpLocale == null) {
+                // updateLocale is called for creating a new locale
+                // Set abbr so it will have a name (getters return
+                // undefined otherwise).
+                config.abbr = name;
+            }
+            locale = new Locale(config);
+            locale.parentLocale = locales[name];
+            locales[name] = locale;
+        }
+
+        // backwards compat for now: also set the locale
+        getSetGlobalLocale(name);
+    } else {
+        // pass null for config to unupdate, useful for tests
+        if (locales[name] != null) {
+            if (locales[name].parentLocale != null) {
+                locales[name] = locales[name].parentLocale;
+                if (name === getSetGlobalLocale()) {
+                    getSetGlobalLocale(name);
+                }
+            } else if (locales[name] != null) {
+                delete locales[name];
+            }
+        }
+    }
+    return locales[name];
+}
+
+// returns locale data
+export function getLocale(key) {
+    var locale;
+
+    if (key && key._locale && key._locale._abbr) {
+        key = key._locale._abbr;
+    }
+
+    if (!key) {
+        return globalLocale;
+    }
+
+    if (!isArray(key)) {
+        //short-circuit everything else
+        locale = loadLocale(key);
+        if (locale) {
+            return locale;
+        }
+        key = [key];
+    }
+
+    return chooseLocale(key);
+}
+
+export function listLocales() {
+    return keys(locales);
+}
diff --git a/backend/node_modules/moment/src/lib/locale/ordinal.js b/backend/node_modules/moment/src/lib/locale/ordinal.js
new file mode 100644
index 0000000..db44f33
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/locale/ordinal.js
@@ -0,0 +1,8 @@
+var defaultOrdinal = '%d',
+    defaultDayOfMonthOrdinalParse = /\d{1,2}/;
+
+export { defaultOrdinal, defaultDayOfMonthOrdinalParse };
+
+export function ordinal(number) {
+    return this._ordinal.replace('%d', number);
+}
diff --git a/backend/node_modules/moment/src/lib/locale/pre-post-format.js b/backend/node_modules/moment/src/lib/locale/pre-post-format.js
new file mode 100644
index 0000000..3551dba
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/locale/pre-post-format.js
@@ -0,0 +1,3 @@
+export function preParsePostFormat(string) {
+    return string;
+}
diff --git a/backend/node_modules/moment/src/lib/locale/prototype.js b/backend/node_modules/moment/src/lib/locale/prototype.js
new file mode 100644
index 0000000..2057f69
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/locale/prototype.js
@@ -0,0 +1,88 @@
+import { Locale } from './constructor';
+
+var proto = Locale.prototype;
+
+import { calendar } from './calendar';
+import { longDateFormat } from './formats';
+import { invalidDate } from './invalid';
+import { ordinal } from './ordinal';
+import { preParsePostFormat } from './pre-post-format';
+import { relativeTime, pastFuture } from './relative';
+import { set } from './set';
+
+proto.calendar = calendar;
+proto.longDateFormat = longDateFormat;
+proto.invalidDate = invalidDate;
+proto.ordinal = ordinal;
+proto.preparse = preParsePostFormat;
+proto.postformat = preParsePostFormat;
+proto.relativeTime = relativeTime;
+proto.pastFuture = pastFuture;
+proto.set = set;
+
+// Eras
+import {
+    localeEras,
+    localeErasParse,
+    localeErasConvertYear,
+    erasAbbrRegex,
+    erasNameRegex,
+    erasNarrowRegex,
+} from '../units/era';
+proto.eras = localeEras;
+proto.erasParse = localeErasParse;
+proto.erasConvertYear = localeErasConvertYear;
+proto.erasAbbrRegex = erasAbbrRegex;
+proto.erasNameRegex = erasNameRegex;
+proto.erasNarrowRegex = erasNarrowRegex;
+
+// Month
+import {
+    localeMonthsParse,
+    localeMonths,
+    localeMonthsShort,
+    monthsRegex,
+    monthsShortRegex,
+} from '../units/month';
+
+proto.months = localeMonths;
+proto.monthsShort = localeMonthsShort;
+proto.monthsParse = localeMonthsParse;
+proto.monthsRegex = monthsRegex;
+proto.monthsShortRegex = monthsShortRegex;
+
+// Week
+import {
+    localeWeek,
+    localeFirstDayOfYear,
+    localeFirstDayOfWeek,
+} from '../units/week';
+proto.week = localeWeek;
+proto.firstDayOfYear = localeFirstDayOfYear;
+proto.firstDayOfWeek = localeFirstDayOfWeek;
+
+// Day of Week
+import {
+    localeWeekdaysParse,
+    localeWeekdays,
+    localeWeekdaysMin,
+    localeWeekdaysShort,
+    weekdaysRegex,
+    weekdaysShortRegex,
+    weekdaysMinRegex,
+} from '../units/day-of-week';
+
+proto.weekdays = localeWeekdays;
+proto.weekdaysMin = localeWeekdaysMin;
+proto.weekdaysShort = localeWeekdaysShort;
+proto.weekdaysParse = localeWeekdaysParse;
+
+proto.weekdaysRegex = weekdaysRegex;
+proto.weekdaysShortRegex = weekdaysShortRegex;
+proto.weekdaysMinRegex = weekdaysMinRegex;
+
+// Hours
+import { localeIsPM, localeMeridiem } from '../units/hour';
+
+proto.isPM = localeIsPM;
+proto.meridiem = localeMeridiem;
diff --git a/backend/node_modules/moment/src/lib/locale/relative.js b/backend/node_modules/moment/src/lib/locale/relative.js
new file mode 100644
index 0000000..8194045
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/locale/relative.js
@@ -0,0 +1,32 @@
+export var defaultRelativeTime = {
+    future: 'in %s',
+    past: '%s ago',
+    s: 'a few seconds',
+    ss: '%d seconds',
+    m: 'a minute',
+    mm: '%d minutes',
+    h: 'an hour',
+    hh: '%d hours',
+    d: 'a day',
+    dd: '%d days',
+    w: 'a week',
+    ww: '%d weeks',
+    M: 'a month',
+    MM: '%d months',
+    y: 'a year',
+    yy: '%d years',
+};
+
+import isFunction from '../utils/is-function';
+
+export function relativeTime(number, withoutSuffix, string, isFuture) {
+    var output = this._relativeTime[string];
+    return isFunction(output)
+        ? output(number, withoutSuffix, string, isFuture)
+        : output.replace(/%d/i, number);
+}
+
+export function pastFuture(diff, output) {
+    var format = this._relativeTime[diff > 0 ? 'future' : 'past'];
+    return isFunction(format) ? format(output) : format.replace(/%s/i, output);
+}
diff --git a/backend/node_modules/moment/src/lib/locale/set.js b/backend/node_modules/moment/src/lib/locale/set.js
new file mode 100644
index 0000000..3b069de
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/locale/set.js
@@ -0,0 +1,56 @@
+import isFunction from '../utils/is-function';
+import extend from '../utils/extend';
+import isObject from '../utils/is-object';
+import hasOwnProp from '../utils/has-own-prop';
+
+export function set(config) {
+    var prop, i;
+    for (i in config) {
+        if (hasOwnProp(config, i)) {
+            prop = config[i];
+            if (isFunction(prop)) {
+                this[i] = prop;
+            } else {
+                this['_' + i] = prop;
+            }
+        }
+    }
+    this._config = config;
+    // Lenient ordinal parsing accepts just a number in addition to
+    // number + (possibly) stuff coming from _dayOfMonthOrdinalParse.
+    // TODO: Remove "ordinalParse" fallback in next major release.
+    this._dayOfMonthOrdinalParseLenient = new RegExp(
+        (this._dayOfMonthOrdinalParse.source || this._ordinalParse.source) +
+            '|' +
+            /\d{1,2}/.source
+    );
+}
+
+export function mergeConfigs(parentConfig, childConfig) {
+    var res = extend({}, parentConfig),
+        prop;
+    for (prop in childConfig) {
+        if (hasOwnProp(childConfig, prop)) {
+            if (isObject(parentConfig[prop]) && isObject(childConfig[prop])) {
+                res[prop] = {};
+                extend(res[prop], parentConfig[prop]);
+                extend(res[prop], childConfig[prop]);
+            } else if (childConfig[prop] != null) {
+                res[prop] = childConfig[prop];
+            } else {
+                delete res[prop];
+            }
+        }
+    }
+    for (prop in parentConfig) {
+        if (
+            hasOwnProp(parentConfig, prop) &&
+            !hasOwnProp(childConfig, prop) &&
+            isObject(parentConfig[prop])
+        ) {
+            // make sure changes to properties don't modify parent config
+            res[prop] = extend({}, res[prop]);
+        }
+    }
+    return res;
+}
diff --git a/backend/node_modules/moment/src/lib/moment/add-subtract.js b/backend/node_modules/moment/src/lib/moment/add-subtract.js
new file mode 100644
index 0000000..6e7cf22
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/moment/add-subtract.js
@@ -0,0 +1,61 @@
+import { get, set } from './get-set';
+import { setMonth } from '../units/month';
+import { createDuration } from '../duration/create';
+import { deprecateSimple } from '../utils/deprecate';
+import { hooks } from '../utils/hooks';
+import absRound from '../utils/abs-round';
+
+// TODO: remove 'name' arg after deprecation is removed
+function createAdder(direction, name) {
+    return function (val, period) {
+        var dur, tmp;
+        //invert the arguments, but complain about it
+        if (period !== null && !isNaN(+period)) {
+            deprecateSimple(
+                name,
+                'moment().' +
+                    name +
+                    '(period, number) is deprecated. Please use moment().' +
+                    name +
+                    '(number, period). ' +
+                    'See http://momentjs.com/guides/#/warnings/add-inverted-param/ for more info.'
+            );
+            tmp = val;
+            val = period;
+            period = tmp;
+        }
+
+        dur = createDuration(val, period);
+        addSubtract(this, dur, direction);
+        return this;
+    };
+}
+
+export function addSubtract(mom, duration, isAdding, updateOffset) {
+    var milliseconds = duration._milliseconds,
+        days = absRound(duration._days),
+        months = absRound(duration._months);
+
+    if (!mom.isValid()) {
+        // No op
+        return;
+    }
+
+    updateOffset = updateOffset == null ? true : updateOffset;
+
+    if (months) {
+        setMonth(mom, get(mom, 'Month') + months * isAdding);
+    }
+    if (days) {
+        set(mom, 'Date', get(mom, 'Date') + days * isAdding);
+    }
+    if (milliseconds) {
+        mom._d.setTime(mom._d.valueOf() + milliseconds * isAdding);
+    }
+    if (updateOffset) {
+        hooks.updateOffset(mom, days || months);
+    }
+}
+
+export var add = createAdder(1, 'add'),
+    subtract = createAdder(-1, 'subtract');
diff --git a/backend/node_modules/moment/src/lib/moment/calendar.js b/backend/node_modules/moment/src/lib/moment/calendar.js
new file mode 100644
index 0000000..7b45d4e
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/moment/calendar.js
@@ -0,0 +1,53 @@
+import { createLocal } from '../create/local';
+import { cloneWithOffset } from '../units/offset';
+import isFunction from '../utils/is-function';
+import { hooks } from '../utils/hooks';
+import { isMomentInput } from '../utils/is-moment-input';
+import isCalendarSpec from '../utils/is-calendar-spec';
+
+export function getCalendarFormat(myMoment, now) {
+    var diff = myMoment.diff(now, 'days', true);
+    return diff < -6
+        ? 'sameElse'
+        : diff < -1
+          ? 'lastWeek'
+          : diff < 0
+            ? 'lastDay'
+            : diff < 1
+              ? 'sameDay'
+              : diff < 2
+                ? 'nextDay'
+                : diff < 7
+                  ? 'nextWeek'
+                  : 'sameElse';
+}
+
+export function calendar(time, formats) {
+    // Support for single parameter, formats only overload to the calendar function
+    if (arguments.length === 1) {
+        if (!arguments[0]) {
+            time = undefined;
+            formats = undefined;
+        } else if (isMomentInput(arguments[0])) {
+            time = arguments[0];
+            formats = undefined;
+        } else if (isCalendarSpec(arguments[0])) {
+            formats = arguments[0];
+            time = undefined;
+        }
+    }
+    // We want to compare the start of today, vs this.
+    // Getting start-of-today depends on whether we're local/utc/offset or not.
+    var now = time || createLocal(),
+        sod = cloneWithOffset(now, this).startOf('day'),
+        format = hooks.calendarFormat(this, sod) || 'sameElse',
+        output =
+            formats &&
+            (isFunction(formats[format])
+                ? formats[format].call(this, now)
+                : formats[format]);
+
+    return this.format(
+        output || this.localeData().calendar(format, this, createLocal(now))
+    );
+}
diff --git a/backend/node_modules/moment/src/lib/moment/clone.js b/backend/node_modules/moment/src/lib/moment/clone.js
new file mode 100644
index 0000000..de77c12
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/moment/clone.js
@@ -0,0 +1,5 @@
+import { Moment } from './constructor';
+
+export function clone() {
+    return new Moment(this);
+}
diff --git a/backend/node_modules/moment/src/lib/moment/compare.js b/backend/node_modules/moment/src/lib/moment/compare.js
new file mode 100644
index 0000000..3f66d77
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/moment/compare.js
@@ -0,0 +1,72 @@
+import { isMoment } from './constructor';
+import { normalizeUnits } from '../units/aliases';
+import { createLocal } from '../create/local';
+
+export function isAfter(input, units) {
+    var localInput = isMoment(input) ? input : createLocal(input);
+    if (!(this.isValid() && localInput.isValid())) {
+        return false;
+    }
+    units = normalizeUnits(units) || 'millisecond';
+    if (units === 'millisecond') {
+        return this.valueOf() > localInput.valueOf();
+    } else {
+        return localInput.valueOf() < this.clone().startOf(units).valueOf();
+    }
+}
+
+export function isBefore(input, units) {
+    var localInput = isMoment(input) ? input : createLocal(input);
+    if (!(this.isValid() && localInput.isValid())) {
+        return false;
+    }
+    units = normalizeUnits(units) || 'millisecond';
+    if (units === 'millisecond') {
+        return this.valueOf() < localInput.valueOf();
+    } else {
+        return this.clone().endOf(units).valueOf() < localInput.valueOf();
+    }
+}
+
+export function isBetween(from, to, units, inclusivity) {
+    var localFrom = isMoment(from) ? from : createLocal(from),
+        localTo = isMoment(to) ? to : createLocal(to);
+    if (!(this.isValid() && localFrom.isValid() && localTo.isValid())) {
+        return false;
+    }
+    inclusivity = inclusivity || '()';
+    return (
+        (inclusivity[0] === '('
+            ? this.isAfter(localFrom, units)
+            : !this.isBefore(localFrom, units)) &&
+        (inclusivity[1] === ')'
+            ? this.isBefore(localTo, units)
+            : !this.isAfter(localTo, units))
+    );
+}
+
+export function isSame(input, units) {
+    var localInput = isMoment(input) ? input : createLocal(input),
+        inputMs;
+    if (!(this.isValid() && localInput.isValid())) {
+        return false;
+    }
+    units = normalizeUnits(units) || 'millisecond';
+    if (units === 'millisecond') {
+        return this.valueOf() === localInput.valueOf();
+    } else {
+        inputMs = localInput.valueOf();
+        return (
+            this.clone().startOf(units).valueOf() <= inputMs &&
+            inputMs <= this.clone().endOf(units).valueOf()
+        );
+    }
+}
+
+export function isSameOrAfter(input, units) {
+    return this.isSame(input, units) || this.isAfter(input, units);
+}
+
+export function isSameOrBefore(input, units) {
+    return this.isSame(input, units) || this.isBefore(input, units);
+}
diff --git a/backend/node_modules/moment/src/lib/moment/constructor.js b/backend/node_modules/moment/src/lib/moment/constructor.js
new file mode 100644
index 0000000..b86de8b
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/moment/constructor.js
@@ -0,0 +1,80 @@
+import { hooks } from '../utils/hooks';
+import isUndefined from '../utils/is-undefined';
+import getParsingFlags from '../create/parsing-flags';
+
+// Plugins that add properties should also add the key here (null value),
+// so we can properly clone ourselves.
+var momentProperties = (hooks.momentProperties = []),
+    updateInProgress = false;
+
+export function copyConfig(to, from) {
+    var i,
+        prop,
+        val,
+        momentPropertiesLen = momentProperties.length;
+
+    if (!isUndefined(from._isAMomentObject)) {
+        to._isAMomentObject = from._isAMomentObject;
+    }
+    if (!isUndefined(from._i)) {
+        to._i = from._i;
+    }
+    if (!isUndefined(from._f)) {
+        to._f = from._f;
+    }
+    if (!isUndefined(from._l)) {
+        to._l = from._l;
+    }
+    if (!isUndefined(from._strict)) {
+        to._strict = from._strict;
+    }
+    if (!isUndefined(from._tzm)) {
+        to._tzm = from._tzm;
+    }
+    if (!isUndefined(from._isUTC)) {
+        to._isUTC = from._isUTC;
+    }
+    if (!isUndefined(from._offset)) {
+        to._offset = from._offset;
+    }
+    if (!isUndefined(from._pf)) {
+        to._pf = getParsingFlags(from);
+    }
+    if (!isUndefined(from._locale)) {
+        to._locale = from._locale;
+    }
+
+    if (momentPropertiesLen > 0) {
+        for (i = 0; i < momentPropertiesLen; i++) {
+            prop = momentProperties[i];
+            val = from[prop];
+            if (!isUndefined(val)) {
+                to[prop] = val;
+            }
+        }
+    }
+
+    return to;
+}
+
+// Moment prototype object
+export function Moment(config) {
+    copyConfig(this, config);
+    this._d = new Date(config._d != null ? config._d.getTime() : NaN);
+    if (!this.isValid()) {
+        this._d = new Date(NaN);
+    }
+    // Prevent infinite loop in case updateOffset creates new moment
+    // objects.
+    if (updateInProgress === false) {
+        updateInProgress = true;
+        hooks.updateOffset(this);
+        updateInProgress = false;
+    }
+}
+
+export function isMoment(obj) {
+    return (
+        obj instanceof Moment || (obj != null && obj._isAMomentObject != null)
+    );
+}
diff --git a/backend/node_modules/moment/src/lib/moment/creation-data.js b/backend/node_modules/moment/src/lib/moment/creation-data.js
new file mode 100644
index 0000000..6643c44
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/moment/creation-data.js
@@ -0,0 +1,9 @@
+export function creationData() {
+    return {
+        input: this._i,
+        format: this._f,
+        locale: this._locale,
+        isUTC: this._isUTC,
+        strict: this._strict,
+    };
+}
diff --git a/backend/node_modules/moment/src/lib/moment/diff.js b/backend/node_modules/moment/src/lib/moment/diff.js
new file mode 100644
index 0000000..5157318
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/moment/diff.js
@@ -0,0 +1,79 @@
+import absFloor from '../utils/abs-floor';
+import { cloneWithOffset } from '../units/offset';
+import { normalizeUnits } from '../units/aliases';
+
+export function diff(input, units, asFloat) {
+    var that, zoneDelta, output;
+
+    if (!this.isValid()) {
+        return NaN;
+    }
+
+    that = cloneWithOffset(input, this);
+
+    if (!that.isValid()) {
+        return NaN;
+    }
+
+    zoneDelta = (that.utcOffset() - this.utcOffset()) * 6e4;
+
+    units = normalizeUnits(units);
+
+    switch (units) {
+        case 'year':
+            output = monthDiff(this, that) / 12;
+            break;
+        case 'month':
+            output = monthDiff(this, that);
+            break;
+        case 'quarter':
+            output = monthDiff(this, that) / 3;
+            break;
+        case 'second':
+            output = (this - that) / 1e3;
+            break; // 1000
+        case 'minute':
+            output = (this - that) / 6e4;
+            break; // 1000 * 60
+        case 'hour':
+            output = (this - that) / 36e5;
+            break; // 1000 * 60 * 60
+        case 'day':
+            output = (this - that - zoneDelta) / 864e5;
+            break; // 1000 * 60 * 60 * 24, negate dst
+        case 'week':
+            output = (this - that - zoneDelta) / 6048e5;
+            break; // 1000 * 60 * 60 * 24 * 7, negate dst
+        default:
+            output = this - that;
+    }
+
+    return asFloat ? output : absFloor(output);
+}
+
+function monthDiff(a, b) {
+    if (a.date() < b.date()) {
+        // end-of-month calculations work correct when the start month has more
+        // days than the end month.
+        return -monthDiff(b, a);
+    }
+    // difference in months
+    var wholeMonthDiff = (b.year() - a.year()) * 12 + (b.month() - a.month()),
+        // b is in (anchor - 1 month, anchor + 1 month)
+        anchor = a.clone().add(wholeMonthDiff, 'months'),
+        anchor2,
+        adjust;
+
+    if (b - anchor < 0) {
+        anchor2 = a.clone().add(wholeMonthDiff - 1, 'months');
+        // linear across the month
+        adjust = (b - anchor) / (anchor - anchor2);
+    } else {
+        anchor2 = a.clone().add(wholeMonthDiff + 1, 'months');
+        // linear across the month
+        adjust = (b - anchor) / (anchor2 - anchor);
+    }
+
+    //check for negative zero, return zero if negative zero
+    return -(wholeMonthDiff + adjust) || 0;
+}
diff --git a/backend/node_modules/moment/src/lib/moment/format.js b/backend/node_modules/moment/src/lib/moment/format.js
new file mode 100644
index 0000000..9a3592a
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/moment/format.js
@@ -0,0 +1,78 @@
+import { formatMoment } from '../format/format';
+import { hooks } from '../utils/hooks';
+import isFunction from '../utils/is-function';
+
+hooks.defaultFormat = 'YYYY-MM-DDTHH:mm:ssZ';
+hooks.defaultFormatUtc = 'YYYY-MM-DDTHH:mm:ss[Z]';
+
+export function toString() {
+    return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ');
+}
+
+export function toISOString(keepOffset) {
+    if (!this.isValid()) {
+        return null;
+    }
+    var utc = keepOffset !== true,
+        m = utc ? this.clone().utc() : this;
+    if (m.year() < 0 || m.year() > 9999) {
+        return formatMoment(
+            m,
+            utc
+                ? 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]'
+                : 'YYYYYY-MM-DD[T]HH:mm:ss.SSSZ'
+        );
+    }
+    if (isFunction(Date.prototype.toISOString)) {
+        // native implementation is ~50x faster, use it when we can
+        if (utc) {
+            return this.toDate().toISOString();
+        } else {
+            return new Date(this.valueOf() + this.utcOffset() * 60 * 1000)
+                .toISOString()
+                .replace('Z', formatMoment(m, 'Z'));
+        }
+    }
+    return formatMoment(
+        m,
+        utc ? 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYY-MM-DD[T]HH:mm:ss.SSSZ'
+    );
+}
+
+/**
+ * Return a human readable representation of a moment that can
+ * also be evaluated to get a new moment which is the same
+ *
+ * @link https://nodejs.org/dist/latest/docs/api/util.html#util_custom_inspect_function_on_objects
+ */
+export function inspect() {
+    if (!this.isValid()) {
+        return 'moment.invalid(/* ' + this._i + ' */)';
+    }
+    var func = 'moment',
+        zone = '',
+        prefix,
+        year,
+        datetime,
+        suffix;
+    if (!this.isLocal()) {
+        func = this.utcOffset() === 0 ? 'moment.utc' : 'moment.parseZone';
+        zone = 'Z';
+    }
+    prefix = '[' + func + '("]';
+    year = 0 <= this.year() && this.year() <= 9999 ? 'YYYY' : 'YYYYYY';
+    datetime = '-MM-DD[T]HH:mm:ss.SSS';
+    suffix = zone + '[")]';
+
+    return this.format(prefix + year + datetime + suffix);
+}
+
+export function format(inputString) {
+    if (!inputString) {
+        inputString = this.isUtc()
+            ? hooks.defaultFormatUtc
+            : hooks.defaultFormat;
+    }
+    var output = formatMoment(this, inputString);
+    return this.localeData().postformat(output);
+}
diff --git a/backend/node_modules/moment/src/lib/moment/from.js b/backend/node_modules/moment/src/lib/moment/from.js
new file mode 100644
index 0000000..5db72aa
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/moment/from.js
@@ -0,0 +1,20 @@
+import { createDuration } from '../duration/create';
+import { createLocal } from '../create/local';
+import { isMoment } from '../moment/constructor';
+
+export function from(time, withoutSuffix) {
+    if (
+        this.isValid() &&
+        ((isMoment(time) && time.isValid()) || createLocal(time).isValid())
+    ) {
+        return createDuration({ to: this, from: time })
+            .locale(this.locale())
+            .humanize(!withoutSuffix);
+    } else {
+        return this.localeData().invalidDate();
+    }
+}
+
+export function fromNow(withoutSuffix) {
+    return this.from(createLocal(), withoutSuffix);
+}
diff --git a/backend/node_modules/moment/src/lib/moment/get-set.js b/backend/node_modules/moment/src/lib/moment/get-set.js
new file mode 100644
index 0000000..526740f
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/moment/get-set.js
@@ -0,0 +1,117 @@
+import { normalizeUnits, normalizeObjectUnits } from '../units/aliases';
+import { getPrioritizedUnits } from '../units/priorities';
+import { hooks } from '../utils/hooks';
+import isFunction from '../utils/is-function';
+import { isLeapYear } from '../units/year';
+
+export function makeGetSet(unit, keepTime) {
+    return function (value) {
+        if (value != null) {
+            set(this, unit, value);
+            hooks.updateOffset(this, keepTime);
+            return this;
+        } else {
+            return get(this, unit);
+        }
+    };
+}
+
+export function get(mom, unit) {
+    if (!mom.isValid()) {
+        return NaN;
+    }
+
+    var d = mom._d,
+        isUTC = mom._isUTC;
+
+    switch (unit) {
+        case 'Milliseconds':
+            return isUTC ? d.getUTCMilliseconds() : d.getMilliseconds();
+        case 'Seconds':
+            return isUTC ? d.getUTCSeconds() : d.getSeconds();
+        case 'Minutes':
+            return isUTC ? d.getUTCMinutes() : d.getMinutes();
+        case 'Hours':
+            return isUTC ? d.getUTCHours() : d.getHours();
+        case 'Date':
+            return isUTC ? d.getUTCDate() : d.getDate();
+        case 'Day':
+            return isUTC ? d.getUTCDay() : d.getDay();
+        case 'Month':
+            return isUTC ? d.getUTCMonth() : d.getMonth();
+        case 'FullYear':
+            return isUTC ? d.getUTCFullYear() : d.getFullYear();
+        default:
+            return NaN; // Just in case
+    }
+}
+
+export function set(mom, unit, value) {
+    var d, isUTC, year, month, date;
+
+    if (!mom.isValid() || isNaN(value)) {
+        return;
+    }
+
+    d = mom._d;
+    isUTC = mom._isUTC;
+
+    switch (unit) {
+        case 'Milliseconds':
+            return void (isUTC
+                ? d.setUTCMilliseconds(value)
+                : d.setMilliseconds(value));
+        case 'Seconds':
+            return void (isUTC ? d.setUTCSeconds(value) : d.setSeconds(value));
+        case 'Minutes':
+            return void (isUTC ? d.setUTCMinutes(value) : d.setMinutes(value));
+        case 'Hours':
+            return void (isUTC ? d.setUTCHours(value) : d.setHours(value));
+        case 'Date':
+            return void (isUTC ? d.setUTCDate(value) : d.setDate(value));
+        // case 'Day': // Not real
+        //    return void (isUTC ? d.setUTCDay(value) : d.setDay(value));
+        // case 'Month': // Not used because we need to pass two variables
+        //     return void (isUTC ? d.setUTCMonth(value) : d.setMonth(value));
+        case 'FullYear':
+            break; // See below ...
+        default:
+            return; // Just in case
+    }
+
+    year = value;
+    month = mom.month();
+    date = mom.date();
+    date = date === 29 && month === 1 && !isLeapYear(year) ? 28 : date;
+    void (isUTC
+        ? d.setUTCFullYear(year, month, date)
+        : d.setFullYear(year, month, date));
+}
+
+// MOMENTS
+
+export function stringGet(units) {
+    units = normalizeUnits(units);
+    if (isFunction(this[units])) {
+        return this[units]();
+    }
+    return this;
+}
+
+export function stringSet(units, value) {
+    if (typeof units === 'object') {
+        units = normalizeObjectUnits(units);
+        var prioritized = getPrioritizedUnits(units),
+            i,
+            prioritizedLen = prioritized.length;
+        for (i = 0; i < prioritizedLen; i++) {
+            this[prioritized[i].unit](units[prioritized[i].unit]);
+        }
+    } else {
+        units = normalizeUnits(units);
+        if (isFunction(this[units])) {
+            return this[units](value);
+        }
+    }
+    return this;
+}
diff --git a/backend/node_modules/moment/src/lib/moment/locale.js b/backend/node_modules/moment/src/lib/moment/locale.js
new file mode 100644
index 0000000..3c62113
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/moment/locale.js
@@ -0,0 +1,34 @@
+import { getLocale } from '../locale/locales';
+import { deprecate } from '../utils/deprecate';
+
+// If passed a locale key, it will set the locale for this
+// instance.  Otherwise, it will return the locale configuration
+// variables for this instance.
+export function locale(key) {
+    var newLocaleData;
+
+    if (key === undefined) {
+        return this._locale._abbr;
+    } else {
+        newLocaleData = getLocale(key);
+        if (newLocaleData != null) {
+            this._locale = newLocaleData;
+        }
+        return this;
+    }
+}
+
+export var lang = deprecate(
+    'moment().lang() is deprecated. Instead, use moment().localeData() to get the language configuration. Use moment().locale() to change languages.',
+    function (key) {
+        if (key === undefined) {
+            return this.localeData();
+        } else {
+            return this.locale(key);
+        }
+    }
+);
+
+export function localeData() {
+    return this._locale;
+}
diff --git a/backend/node_modules/moment/src/lib/moment/min-max.js b/backend/node_modules/moment/src/lib/moment/min-max.js
new file mode 100644
index 0000000..2ea8955
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/moment/min-max.js
@@ -0,0 +1,62 @@
+import { deprecate } from '../utils/deprecate';
+import isArray from '../utils/is-array';
+import { createLocal } from '../create/local';
+import { createInvalid } from '../create/valid';
+
+export var prototypeMin = deprecate(
+        'moment().min is deprecated, use moment.max instead. http://momentjs.com/guides/#/warnings/min-max/',
+        function () {
+            var other = createLocal.apply(null, arguments);
+            if (this.isValid() && other.isValid()) {
+                return other < this ? this : other;
+            } else {
+                return createInvalid();
+            }
+        }
+    ),
+    prototypeMax = deprecate(
+        'moment().max is deprecated, use moment.min instead. http://momentjs.com/guides/#/warnings/min-max/',
+        function () {
+            var other = createLocal.apply(null, arguments);
+            if (this.isValid() && other.isValid()) {
+                return other > this ? this : other;
+            } else {
+                return createInvalid();
+            }
+        }
+    );
+
+// Pick a moment m from moments so that m[fn](other) is true for all
+// other. This relies on the function fn to be transitive.
+//
+// moments should either be an array of moment objects or an array, whose
+// first element is an array of moment objects.
+function pickBy(fn, moments) {
+    var res, i;
+    if (moments.length === 1 && isArray(moments[0])) {
+        moments = moments[0];
+    }
+    if (!moments.length) {
+        return createLocal();
+    }
+    res = moments[0];
+    for (i = 1; i < moments.length; ++i) {
+        if (!moments[i].isValid() || moments[i][fn](res)) {
+            res = moments[i];
+        }
+    }
+    return res;
+}
+
+// TODO: Use [].sort instead?
+export function min() {
+    var args = [].slice.call(arguments, 0);
+
+    return pickBy('isBefore', args);
+}
+
+export function max() {
+    var args = [].slice.call(arguments, 0);
+
+    return pickBy('isAfter', args);
+}
diff --git a/backend/node_modules/moment/src/lib/moment/moment.js b/backend/node_modules/moment/src/lib/moment/moment.js
new file mode 100644
index 0000000..f369d08
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/moment/moment.js
@@ -0,0 +1,28 @@
+import { createLocal } from '../create/local';
+import { createUTC } from '../create/utc';
+import { createInvalid } from '../create/valid';
+import { isMoment } from './constructor';
+import { min, max } from './min-max';
+import { now } from './now';
+import momentPrototype from './prototype';
+
+function createUnix(input) {
+    return createLocal(input * 1000);
+}
+
+function createInZone() {
+    return createLocal.apply(null, arguments).parseZone();
+}
+
+export {
+    now,
+    min,
+    max,
+    isMoment,
+    createUTC,
+    createUnix,
+    createLocal,
+    createInZone,
+    createInvalid,
+    momentPrototype,
+};
diff --git a/backend/node_modules/moment/src/lib/moment/now.js b/backend/node_modules/moment/src/lib/moment/now.js
new file mode 100644
index 0000000..9bef276
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/moment/now.js
@@ -0,0 +1,3 @@
+export var now = function () {
+    return Date.now ? Date.now() : +new Date();
+};
diff --git a/backend/node_modules/moment/src/lib/moment/prototype.js b/backend/node_modules/moment/src/lib/moment/prototype.js
new file mode 100644
index 0000000..b4565ab
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/moment/prototype.js
@@ -0,0 +1,197 @@
+import { Moment } from './constructor';
+
+var proto = Moment.prototype;
+
+import { add, subtract } from './add-subtract';
+import { calendar } from './calendar';
+import { clone } from './clone';
+import {
+    isBefore,
+    isBetween,
+    isSame,
+    isAfter,
+    isSameOrAfter,
+    isSameOrBefore,
+} from './compare';
+import { diff } from './diff';
+import { format, toString, toISOString, inspect } from './format';
+import { from, fromNow } from './from';
+import { to, toNow } from './to';
+import { stringGet, stringSet } from './get-set';
+import { locale, localeData, lang } from './locale';
+import { prototypeMin, prototypeMax } from './min-max';
+import { startOf, endOf } from './start-end-of';
+import { valueOf, toDate, toArray, toObject, toJSON, unix } from './to-type';
+import { isValid, parsingFlags, invalidAt } from './valid';
+import { creationData } from './creation-data';
+
+proto.add = add;
+proto.calendar = calendar;
+proto.clone = clone;
+proto.diff = diff;
+proto.endOf = endOf;
+proto.format = format;
+proto.from = from;
+proto.fromNow = fromNow;
+proto.to = to;
+proto.toNow = toNow;
+proto.get = stringGet;
+proto.invalidAt = invalidAt;
+proto.isAfter = isAfter;
+proto.isBefore = isBefore;
+proto.isBetween = isBetween;
+proto.isSame = isSame;
+proto.isSameOrAfter = isSameOrAfter;
+proto.isSameOrBefore = isSameOrBefore;
+proto.isValid = isValid;
+proto.lang = lang;
+proto.locale = locale;
+proto.localeData = localeData;
+proto.max = prototypeMax;
+proto.min = prototypeMin;
+proto.parsingFlags = parsingFlags;
+proto.set = stringSet;
+proto.startOf = startOf;
+proto.subtract = subtract;
+proto.toArray = toArray;
+proto.toObject = toObject;
+proto.toDate = toDate;
+proto.toISOString = toISOString;
+proto.inspect = inspect;
+if (typeof Symbol !== 'undefined' && Symbol.for != null) {
+    proto[Symbol.for('nodejs.util.inspect.custom')] = function () {
+        return 'Moment<' + this.format() + '>';
+    };
+}
+proto.toJSON = toJSON;
+proto.toString = toString;
+proto.unix = unix;
+proto.valueOf = valueOf;
+proto.creationData = creationData;
+
+// Era
+import { getEraName, getEraNarrow, getEraAbbr, getEraYear } from '../units/era';
+proto.eraName = getEraName;
+proto.eraNarrow = getEraNarrow;
+proto.eraAbbr = getEraAbbr;
+proto.eraYear = getEraYear;
+
+// Year
+import { getSetYear, getIsLeapYear } from '../units/year';
+proto.year = getSetYear;
+proto.isLeapYear = getIsLeapYear;
+
+// Week Year
+import {
+    getSetWeekYear,
+    getSetISOWeekYear,
+    getWeeksInYear,
+    getWeeksInWeekYear,
+    getISOWeeksInYear,
+    getISOWeeksInISOWeekYear,
+} from '../units/week-year';
+proto.weekYear = getSetWeekYear;
+proto.isoWeekYear = getSetISOWeekYear;
+
+// Quarter
+import { getSetQuarter } from '../units/quarter';
+proto.quarter = proto.quarters = getSetQuarter;
+
+// Month
+import { getSetMonth, getDaysInMonth } from '../units/month';
+proto.month = getSetMonth;
+proto.daysInMonth = getDaysInMonth;
+
+// Week
+import { getSetWeek, getSetISOWeek } from '../units/week';
+proto.week = proto.weeks = getSetWeek;
+proto.isoWeek = proto.isoWeeks = getSetISOWeek;
+proto.weeksInYear = getWeeksInYear;
+proto.weeksInWeekYear = getWeeksInWeekYear;
+proto.isoWeeksInYear = getISOWeeksInYear;
+proto.isoWeeksInISOWeekYear = getISOWeeksInISOWeekYear;
+
+// Day
+import { getSetDayOfMonth } from '../units/day-of-month';
+import {
+    getSetDayOfWeek,
+    getSetISODayOfWeek,
+    getSetLocaleDayOfWeek,
+} from '../units/day-of-week';
+import { getSetDayOfYear } from '../units/day-of-year';
+proto.date = getSetDayOfMonth;
+proto.day = proto.days = getSetDayOfWeek;
+proto.weekday = getSetLocaleDayOfWeek;
+proto.isoWeekday = getSetISODayOfWeek;
+proto.dayOfYear = getSetDayOfYear;
+
+// Hour
+import { getSetHour } from '../units/hour';
+proto.hour = proto.hours = getSetHour;
+
+// Minute
+import { getSetMinute } from '../units/minute';
+proto.minute = proto.minutes = getSetMinute;
+
+// Second
+import { getSetSecond } from '../units/second';
+proto.second = proto.seconds = getSetSecond;
+
+// Millisecond
+import { getSetMillisecond } from '../units/millisecond';
+proto.millisecond = proto.milliseconds = getSetMillisecond;
+
+// Offset
+import {
+    getSetOffset,
+    setOffsetToUTC,
+    setOffsetToLocal,
+    setOffsetToParsedOffset,
+    hasAlignedHourOffset,
+    isDaylightSavingTime,
+    isDaylightSavingTimeShifted,
+    getSetZone,
+    isLocal,
+    isUtcOffset,
+    isUtc,
+} from '../units/offset';
+proto.utcOffset = getSetOffset;
+proto.utc = setOffsetToUTC;
+proto.local = setOffsetToLocal;
+proto.parseZone = setOffsetToParsedOffset;
+proto.hasAlignedHourOffset = hasAlignedHourOffset;
+proto.isDST = isDaylightSavingTime;
+proto.isLocal = isLocal;
+proto.isUtcOffset = isUtcOffset;
+proto.isUtc = isUtc;
+proto.isUTC = isUtc;
+
+// Timezone
+import { getZoneAbbr, getZoneName } from '../units/timezone';
+proto.zoneAbbr = getZoneAbbr;
+proto.zoneName = getZoneName;
+
+// Deprecations
+import { deprecate } from '../utils/deprecate';
+proto.dates = deprecate(
+    'dates accessor is deprecated. Use date instead.',
+    getSetDayOfMonth
+);
+proto.months = deprecate(
+    'months accessor is deprecated. Use month instead',
+    getSetMonth
+);
+proto.years = deprecate(
+    'years accessor is deprecated. Use year instead',
+    getSetYear
+);
+proto.zone = deprecate(
+    'moment().zone is deprecated, use moment().utcOffset instead. http://momentjs.com/guides/#/warnings/zone/',
+    getSetZone
+);
+proto.isDSTShifted = deprecate(
+    'isDSTShifted is deprecated. See http://momentjs.com/guides/#/warnings/dst-shifted/ for more information',
+    isDaylightSavingTimeShifted
+);
+
+export default proto;
diff --git a/backend/node_modules/moment/src/lib/moment/start-end-of.js b/backend/node_modules/moment/src/lib/moment/start-end-of.js
new file mode 100644
index 0000000..cbb301f
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/moment/start-end-of.js
@@ -0,0 +1,164 @@
+import { normalizeUnits } from '../units/aliases';
+import { hooks } from '../utils/hooks';
+
+var MS_PER_SECOND = 1000,
+    MS_PER_MINUTE = 60 * MS_PER_SECOND,
+    MS_PER_HOUR = 60 * MS_PER_MINUTE,
+    MS_PER_400_YEARS = (365 * 400 + 97) * 24 * MS_PER_HOUR;
+
+// actual modulo - handles negative numbers (for dates before 1970):
+function mod(dividend, divisor) {
+    return ((dividend % divisor) + divisor) % divisor;
+}
+
+function localStartOfDate(y, m, d) {
+    // the date constructor remaps years 0-99 to 1900-1999
+    if (y < 100 && y >= 0) {
+        // preserve leap years using a full 400 year cycle, then reset
+        return new Date(y + 400, m, d) - MS_PER_400_YEARS;
+    } else {
+        return new Date(y, m, d).valueOf();
+    }
+}
+
+function utcStartOfDate(y, m, d) {
+    // Date.UTC remaps years 0-99 to 1900-1999
+    if (y < 100 && y >= 0) {
+        // preserve leap years using a full 400 year cycle, then reset
+        return Date.UTC(y + 400, m, d) - MS_PER_400_YEARS;
+    } else {
+        return Date.UTC(y, m, d);
+    }
+}
+
+export function startOf(units) {
+    var time, startOfDate;
+    units = normalizeUnits(units);
+    if (units === undefined || units === 'millisecond' || !this.isValid()) {
+        return this;
+    }
+
+    startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;
+
+    switch (units) {
+        case 'year':
+            time = startOfDate(this.year(), 0, 1);
+            break;
+        case 'quarter':
+            time = startOfDate(
+                this.year(),
+                this.month() - (this.month() % 3),
+                1
+            );
+            break;
+        case 'month':
+            time = startOfDate(this.year(), this.month(), 1);
+            break;
+        case 'week':
+            time = startOfDate(
+                this.year(),
+                this.month(),
+                this.date() - this.weekday()
+            );
+            break;
+        case 'isoWeek':
+            time = startOfDate(
+                this.year(),
+                this.month(),
+                this.date() - (this.isoWeekday() - 1)
+            );
+            break;
+        case 'day':
+        case 'date':
+            time = startOfDate(this.year(), this.month(), this.date());
+            break;
+        case 'hour':
+            time = this._d.valueOf();
+            time -= mod(
+                time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE),
+                MS_PER_HOUR
+            );
+            break;
+        case 'minute':
+            time = this._d.valueOf();
+            time -= mod(time, MS_PER_MINUTE);
+            break;
+        case 'second':
+            time = this._d.valueOf();
+            time -= mod(time, MS_PER_SECOND);
+            break;
+    }
+
+    this._d.setTime(time);
+    hooks.updateOffset(this, true);
+    return this;
+}
+
+export function endOf(units) {
+    var time, startOfDate;
+    units = normalizeUnits(units);
+    if (units === undefined || units === 'millisecond' || !this.isValid()) {
+        return this;
+    }
+
+    startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;
+
+    switch (units) {
+        case 'year':
+            time = startOfDate(this.year() + 1, 0, 1) - 1;
+            break;
+        case 'quarter':
+            time =
+                startOfDate(
+                    this.year(),
+                    this.month() - (this.month() % 3) + 3,
+                    1
+                ) - 1;
+            break;
+        case 'month':
+            time = startOfDate(this.year(), this.month() + 1, 1) - 1;
+            break;
+        case 'week':
+            time =
+                startOfDate(
+                    this.year(),
+                    this.month(),
+                    this.date() - this.weekday() + 7
+                ) - 1;
+            break;
+        case 'isoWeek':
+            time =
+                startOfDate(
+                    this.year(),
+                    this.month(),
+                    this.date() - (this.isoWeekday() - 1) + 7
+                ) - 1;
+            break;
+        case 'day':
+        case 'date':
+            time = startOfDate(this.year(), this.month(), this.date() + 1) - 1;
+            break;
+        case 'hour':
+            time = this._d.valueOf();
+            time +=
+                MS_PER_HOUR -
+                mod(
+                    time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE),
+                    MS_PER_HOUR
+                ) -
+                1;
+            break;
+        case 'minute':
+            time = this._d.valueOf();
+            time += MS_PER_MINUTE - mod(time, MS_PER_MINUTE) - 1;
+            break;
+        case 'second':
+            time = this._d.valueOf();
+            time += MS_PER_SECOND - mod(time, MS_PER_SECOND) - 1;
+            break;
+    }
+
+    this._d.setTime(time);
+    hooks.updateOffset(this, true);
+    return this;
+}
diff --git a/backend/node_modules/moment/src/lib/moment/to-type.js b/backend/node_modules/moment/src/lib/moment/to-type.js
new file mode 100644
index 0000000..1eef5c8
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/moment/to-type.js
@@ -0,0 +1,42 @@
+export function valueOf() {
+    return this._d.valueOf() - (this._offset || 0) * 60000;
+}
+
+export function unix() {
+    return Math.floor(this.valueOf() / 1000);
+}
+
+export function toDate() {
+    return new Date(this.valueOf());
+}
+
+export function toArray() {
+    var m = this;
+    return [
+        m.year(),
+        m.month(),
+        m.date(),
+        m.hour(),
+        m.minute(),
+        m.second(),
+        m.millisecond(),
+    ];
+}
+
+export function toObject() {
+    var m = this;
+    return {
+        years: m.year(),
+        months: m.month(),
+        date: m.date(),
+        hours: m.hours(),
+        minutes: m.minutes(),
+        seconds: m.seconds(),
+        milliseconds: m.milliseconds(),
+    };
+}
+
+export function toJSON() {
+    // new Date(NaN).toJSON() === null
+    return this.isValid() ? this.toISOString() : null;
+}
diff --git a/backend/node_modules/moment/src/lib/moment/to.js b/backend/node_modules/moment/src/lib/moment/to.js
new file mode 100644
index 0000000..073a3d1
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/moment/to.js
@@ -0,0 +1,20 @@
+import { createDuration } from '../duration/create';
+import { createLocal } from '../create/local';
+import { isMoment } from '../moment/constructor';
+
+export function to(time, withoutSuffix) {
+    if (
+        this.isValid() &&
+        ((isMoment(time) && time.isValid()) || createLocal(time).isValid())
+    ) {
+        return createDuration({ from: this, to: time })
+            .locale(this.locale())
+            .humanize(!withoutSuffix);
+    } else {
+        return this.localeData().invalidDate();
+    }
+}
+
+export function toNow(withoutSuffix) {
+    return this.to(createLocal(), withoutSuffix);
+}
diff --git a/backend/node_modules/moment/src/lib/moment/valid.js b/backend/node_modules/moment/src/lib/moment/valid.js
new file mode 100644
index 0000000..7a7e1b9
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/moment/valid.js
@@ -0,0 +1,15 @@
+import { isValid as _isValid } from '../create/valid';
+import extend from '../utils/extend';
+import getParsingFlags from '../create/parsing-flags';
+
+export function isValid() {
+    return _isValid(this);
+}
+
+export function parsingFlags() {
+    return extend({}, getParsingFlags(this));
+}
+
+export function invalidAt() {
+    return getParsingFlags(this).overflow;
+}
diff --git a/backend/node_modules/moment/src/lib/parse/regex.js b/backend/node_modules/moment/src/lib/parse/regex.js
new file mode 100644
index 0000000..c2cf4e5
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/parse/regex.js
@@ -0,0 +1,84 @@
+var match1 = /\d/, //       0 - 9
+    match2 = /\d\d/, //      00 - 99
+    match3 = /\d{3}/, //     000 - 999
+    match4 = /\d{4}/, //    0000 - 9999
+    match6 = /[+-]?\d{6}/, // -999999 - 999999
+    match1to2 = /\d\d?/, //       0 - 99
+    match3to4 = /\d\d\d\d?/, //     999 - 9999
+    match5to6 = /\d\d\d\d\d\d?/, //   99999 - 999999
+    match1to3 = /\d{1,3}/, //       0 - 999
+    match1to4 = /\d{1,4}/, //       0 - 9999
+    match1to6 = /[+-]?\d{1,6}/, // -999999 - 999999
+    matchUnsigned = /\d+/, //       0 - inf
+    matchSigned = /[+-]?\d+/, //    -inf - inf
+    matchOffset = /Z|[+-]\d\d:?\d\d/gi, // +00:00 -00:00 +0000 -0000 or Z
+    matchShortOffset = /Z|[+-]\d\d(?::?\d\d)?/gi, // +00 -00 +00:00 -00:00 +0000 -0000 or Z
+    matchTimestamp = /[+-]?\d+(\.\d{1,3})?/, // 123456789 123456789.123
+    // any word (or two) characters or numbers including two/three word month in arabic.
+    // includes scottish gaelic two word and hyphenated months
+    matchWord =
+        /[0-9]{0,256}['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFF07\uFF10-\uFFEF]{1,256}|[\u0600-\u06FF\/]{1,256}(\s*?[\u0600-\u06FF]{1,256}){1,2}/i,
+    match1to2NoLeadingZero = /^[1-9]\d?/, //         1-99
+    match1to2HasZero = /^([1-9]\d|\d)/, //           0-99
+    regexes;
+
+export {
+    match1,
+    match2,
+    match3,
+    match4,
+    match6,
+    match1to2,
+    match3to4,
+    match5to6,
+    match1to3,
+    match1to4,
+    match1to6,
+    matchUnsigned,
+    matchSigned,
+    matchOffset,
+    matchShortOffset,
+    matchTimestamp,
+    matchWord,
+    match1to2NoLeadingZero,
+    match1to2HasZero,
+};
+
+import hasOwnProp from '../utils/has-own-prop';
+import isFunction from '../utils/is-function';
+
+regexes = {};
+
+export function addRegexToken(token, regex, strictRegex) {
+    regexes[token] = isFunction(regex)
+        ? regex
+        : function (isStrict, localeData) {
+              return isStrict && strictRegex ? strictRegex : regex;
+          };
+}
+
+export function getParseRegexForToken(token, config) {
+    if (!hasOwnProp(regexes, token)) {
+        return new RegExp(unescapeFormat(token));
+    }
+
+    return regexes[token](config._strict, config._locale);
+}
+
+// Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript
+function unescapeFormat(s) {
+    return regexEscape(
+        s
+            .replace('\\', '')
+            .replace(
+                /\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g,
+                function (matched, p1, p2, p3, p4) {
+                    return p1 || p2 || p3 || p4;
+                }
+            )
+    );
+}
+
+export function regexEscape(s) {
+    return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
+}
diff --git a/backend/node_modules/moment/src/lib/parse/token.js b/backend/node_modules/moment/src/lib/parse/token.js
new file mode 100644
index 0000000..ede3578
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/parse/token.js
@@ -0,0 +1,36 @@
+import hasOwnProp from '../utils/has-own-prop';
+import isNumber from '../utils/is-number';
+import toInt from '../utils/to-int';
+
+var tokens = {};
+
+export function addParseToken(token, callback) {
+    var i,
+        func = callback,
+        tokenLen;
+    if (typeof token === 'string') {
+        token = [token];
+    }
+    if (isNumber(callback)) {
+        func = function (input, array) {
+            array[callback] = toInt(input);
+        };
+    }
+    tokenLen = token.length;
+    for (i = 0; i < tokenLen; i++) {
+        tokens[token[i]] = func;
+    }
+}
+
+export function addWeekParseToken(token, callback) {
+    addParseToken(token, function (input, array, config, token) {
+        config._w = config._w || {};
+        callback(input, config._w, config, token);
+    });
+}
+
+export function addTimeToArrayFromToken(token, input, config) {
+    if (input != null && hasOwnProp(tokens, token)) {
+        tokens[token](input, config._a, config, token);
+    }
+}
diff --git a/backend/node_modules/moment/src/lib/units/aliases.js b/backend/node_modules/moment/src/lib/units/aliases.js
new file mode 100644
index 0000000..469a4de
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/units/aliases.js
@@ -0,0 +1,75 @@
+import hasOwnProp from '../utils/has-own-prop';
+
+var aliases = {
+    D: 'date',
+    dates: 'date',
+    date: 'date',
+    d: 'day',
+    days: 'day',
+    day: 'day',
+    e: 'weekday',
+    weekdays: 'weekday',
+    weekday: 'weekday',
+    E: 'isoWeekday',
+    isoweekdays: 'isoWeekday',
+    isoweekday: 'isoWeekday',
+    DDD: 'dayOfYear',
+    dayofyears: 'dayOfYear',
+    dayofyear: 'dayOfYear',
+    h: 'hour',
+    hours: 'hour',
+    hour: 'hour',
+    ms: 'millisecond',
+    milliseconds: 'millisecond',
+    millisecond: 'millisecond',
+    m: 'minute',
+    minutes: 'minute',
+    minute: 'minute',
+    M: 'month',
+    months: 'month',
+    month: 'month',
+    Q: 'quarter',
+    quarters: 'quarter',
+    quarter: 'quarter',
+    s: 'second',
+    seconds: 'second',
+    second: 'second',
+    gg: 'weekYear',
+    weekyears: 'weekYear',
+    weekyear: 'weekYear',
+    GG: 'isoWeekYear',
+    isoweekyears: 'isoWeekYear',
+    isoweekyear: 'isoWeekYear',
+    w: 'week',
+    weeks: 'week',
+    week: 'week',
+    W: 'isoWeek',
+    isoweeks: 'isoWeek',
+    isoweek: 'isoWeek',
+    y: 'year',
+    years: 'year',
+    year: 'year',
+};
+
+export function normalizeUnits(units) {
+    return typeof units === 'string'
+        ? aliases[units] || aliases[units.toLowerCase()]
+        : undefined;
+}
+
+export function normalizeObjectUnits(inputObject) {
+    var normalizedInput = {},
+        normalizedProp,
+        prop;
+
+    for (prop in inputObject) {
+        if (hasOwnProp(inputObject, prop)) {
+            normalizedProp = normalizeUnits(prop);
+            if (normalizedProp) {
+                normalizedInput[normalizedProp] = inputObject[prop];
+            }
+        }
+    }
+
+    return normalizedInput;
+}
diff --git a/backend/node_modules/moment/src/lib/units/constants.js b/backend/node_modules/moment/src/lib/units/constants.js
new file mode 100644
index 0000000..da36dbd
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/units/constants.js
@@ -0,0 +1,9 @@
+export var YEAR = 0,
+    MONTH = 1,
+    DATE = 2,
+    HOUR = 3,
+    MINUTE = 4,
+    SECOND = 5,
+    MILLISECOND = 6,
+    WEEK = 7,
+    WEEKDAY = 8;
diff --git a/backend/node_modules/moment/src/lib/units/day-of-month.js b/backend/node_modules/moment/src/lib/units/day-of-month.js
new file mode 100644
index 0000000..41b3193
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/units/day-of-month.js
@@ -0,0 +1,35 @@
+import { makeGetSet } from '../moment/get-set';
+import { addFormatToken } from '../format/format';
+import {
+    addRegexToken,
+    match1to2,
+    match2,
+    match1to2NoLeadingZero,
+} from '../parse/regex';
+import { addParseToken } from '../parse/token';
+import { DATE } from './constants';
+import toInt from '../utils/to-int';
+
+// FORMATTING
+
+addFormatToken('D', ['DD', 2], 'Do', 'date');
+
+// PARSING
+
+addRegexToken('D', match1to2, match1to2NoLeadingZero);
+addRegexToken('DD', match1to2, match2);
+addRegexToken('Do', function (isStrict, locale) {
+    // TODO: Remove "ordinalParse" fallback in next major release.
+    return isStrict
+        ? locale._dayOfMonthOrdinalParse || locale._ordinalParse
+        : locale._dayOfMonthOrdinalParseLenient;
+});
+
+addParseToken(['D', 'DD'], DATE);
+addParseToken('Do', function (input, array) {
+    array[DATE] = toInt(input.match(match1to2)[0]);
+});
+
+// MOMENTS
+
+export var getSetDayOfMonth = makeGetSet('Date', true);
diff --git a/backend/node_modules/moment/src/lib/units/day-of-week.js b/backend/node_modules/moment/src/lib/units/day-of-week.js
new file mode 100644
index 0000000..4cdc4d4
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/units/day-of-week.js
@@ -0,0 +1,432 @@
+import { get } from '../moment/get-set';
+import { addFormatToken } from '../format/format';
+import {
+    addRegexToken,
+    match1to2,
+    matchWord,
+    regexEscape,
+} from '../parse/regex';
+import { addWeekParseToken } from '../parse/token';
+import toInt from '../utils/to-int';
+import isArray from '../utils/is-array';
+import indexOf from '../utils/index-of';
+import hasOwnProp from '../utils/has-own-prop';
+import { createUTC } from '../create/utc';
+import getParsingFlags from '../create/parsing-flags';
+
+// FORMATTING
+
+addFormatToken('d', 0, 'do', 'day');
+
+addFormatToken('dd', 0, 0, function (format) {
+    return this.localeData().weekdaysMin(this, format);
+});
+
+addFormatToken('ddd', 0, 0, function (format) {
+    return this.localeData().weekdaysShort(this, format);
+});
+
+addFormatToken('dddd', 0, 0, function (format) {
+    return this.localeData().weekdays(this, format);
+});
+
+addFormatToken('e', 0, 0, 'weekday');
+addFormatToken('E', 0, 0, 'isoWeekday');
+
+// PARSING
+
+addRegexToken('d', match1to2);
+addRegexToken('e', match1to2);
+addRegexToken('E', match1to2);
+addRegexToken('dd', function (isStrict, locale) {
+    return locale.weekdaysMinRegex(isStrict);
+});
+addRegexToken('ddd', function (isStrict, locale) {
+    return locale.weekdaysShortRegex(isStrict);
+});
+addRegexToken('dddd', function (isStrict, locale) {
+    return locale.weekdaysRegex(isStrict);
+});
+
+addWeekParseToken(['dd', 'ddd', 'dddd'], function (input, week, config, token) {
+    var weekday = config._locale.weekdaysParse(input, token, config._strict);
+    // if we didn't get a weekday name, mark the date as invalid
+    if (weekday != null) {
+        week.d = weekday;
+    } else {
+        getParsingFlags(config).invalidWeekday = input;
+    }
+});
+
+addWeekParseToken(['d', 'e', 'E'], function (input, week, config, token) {
+    week[token] = toInt(input);
+});
+
+// HELPERS
+
+function parseWeekday(input, locale) {
+    if (typeof input !== 'string') {
+        return input;
+    }
+
+    if (!isNaN(input)) {
+        return parseInt(input, 10);
+    }
+
+    input = locale.weekdaysParse(input);
+    if (typeof input === 'number') {
+        return input;
+    }
+
+    return null;
+}
+
+function parseIsoWeekday(input, locale) {
+    if (typeof input === 'string') {
+        return locale.weekdaysParse(input) % 7 || 7;
+    }
+    return isNaN(input) ? null : input;
+}
+
+// LOCALES
+function shiftWeekdays(ws, n) {
+    return ws.slice(n, 7).concat(ws.slice(0, n));
+}
+
+var defaultLocaleWeekdays =
+        'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_'),
+    defaultLocaleWeekdaysShort = 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+    defaultLocaleWeekdaysMin = 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+    defaultWeekdaysRegex = matchWord,
+    defaultWeekdaysShortRegex = matchWord,
+    defaultWeekdaysMinRegex = matchWord;
+
+export {
+    defaultLocaleWeekdays,
+    defaultLocaleWeekdaysShort,
+    defaultLocaleWeekdaysMin,
+};
+
+export function localeWeekdays(m, format) {
+    var weekdays = isArray(this._weekdays)
+        ? this._weekdays
+        : this._weekdays[
+              m && m !== true && this._weekdays.isFormat.test(format)
+                  ? 'format'
+                  : 'standalone'
+          ];
+    return m === true
+        ? shiftWeekdays(weekdays, this._week.dow)
+        : m
+          ? weekdays[m.day()]
+          : weekdays;
+}
+
+export function localeWeekdaysShort(m) {
+    return m === true
+        ? shiftWeekdays(this._weekdaysShort, this._week.dow)
+        : m
+          ? this._weekdaysShort[m.day()]
+          : this._weekdaysShort;
+}
+
+export function localeWeekdaysMin(m) {
+    return m === true
+        ? shiftWeekdays(this._weekdaysMin, this._week.dow)
+        : m
+          ? this._weekdaysMin[m.day()]
+          : this._weekdaysMin;
+}
+
+function handleStrictParse(weekdayName, format, strict) {
+    var i,
+        ii,
+        mom,
+        llc = weekdayName.toLocaleLowerCase();
+    if (!this._weekdaysParse) {
+        this._weekdaysParse = [];
+        this._shortWeekdaysParse = [];
+        this._minWeekdaysParse = [];
+
+        for (i = 0; i < 7; ++i) {
+            mom = createUTC([2000, 1]).day(i);
+            this._minWeekdaysParse[i] = this.weekdaysMin(
+                mom,
+                ''
+            ).toLocaleLowerCase();
+            this._shortWeekdaysParse[i] = this.weekdaysShort(
+                mom,
+                ''
+            ).toLocaleLowerCase();
+            this._weekdaysParse[i] = this.weekdays(mom, '').toLocaleLowerCase();
+        }
+    }
+
+    if (strict) {
+        if (format === 'dddd') {
+            ii = indexOf.call(this._weekdaysParse, llc);
+            return ii !== -1 ? ii : null;
+        } else if (format === 'ddd') {
+            ii = indexOf.call(this._shortWeekdaysParse, llc);
+            return ii !== -1 ? ii : null;
+        } else {
+            ii = indexOf.call(this._minWeekdaysParse, llc);
+            return ii !== -1 ? ii : null;
+        }
+    } else {
+        if (format === 'dddd') {
+            ii = indexOf.call(this._weekdaysParse, llc);
+            if (ii !== -1) {
+                return ii;
+            }
+            ii = indexOf.call(this._shortWeekdaysParse, llc);
+            if (ii !== -1) {
+                return ii;
+            }
+            ii = indexOf.call(this._minWeekdaysParse, llc);
+            return ii !== -1 ? ii : null;
+        } else if (format === 'ddd') {
+            ii = indexOf.call(this._shortWeekdaysParse, llc);
+            if (ii !== -1) {
+                return ii;
+            }
+            ii = indexOf.call(this._weekdaysParse, llc);
+            if (ii !== -1) {
+                return ii;
+            }
+            ii = indexOf.call(this._minWeekdaysParse, llc);
+            return ii !== -1 ? ii : null;
+        } else {
+            ii = indexOf.call(this._minWeekdaysParse, llc);
+            if (ii !== -1) {
+                return ii;
+            }
+            ii = indexOf.call(this._weekdaysParse, llc);
+            if (ii !== -1) {
+                return ii;
+            }
+            ii = indexOf.call(this._shortWeekdaysParse, llc);
+            return ii !== -1 ? ii : null;
+        }
+    }
+}
+
+export function localeWeekdaysParse(weekdayName, format, strict) {
+    var i, mom, regex;
+
+    if (this._weekdaysParseExact) {
+        return handleStrictParse.call(this, weekdayName, format, strict);
+    }
+
+    if (!this._weekdaysParse) {
+        this._weekdaysParse = [];
+        this._minWeekdaysParse = [];
+        this._shortWeekdaysParse = [];
+        this._fullWeekdaysParse = [];
+    }
+
+    for (i = 0; i < 7; i++) {
+        // make the regex if we don't have it already
+
+        mom = createUTC([2000, 1]).day(i);
+        if (strict && !this._fullWeekdaysParse[i]) {
+            this._fullWeekdaysParse[i] = new RegExp(
+                '^' + this.weekdays(mom, '').replace('.', '\\.?') + '$',
+                'i'
+            );
+            this._shortWeekdaysParse[i] = new RegExp(
+                '^' + this.weekdaysShort(mom, '').replace('.', '\\.?') + '$',
+                'i'
+            );
+            this._minWeekdaysParse[i] = new RegExp(
+                '^' + this.weekdaysMin(mom, '').replace('.', '\\.?') + '$',
+                'i'
+            );
+        }
+        if (!this._weekdaysParse[i]) {
+            regex =
+                '^' +
+                this.weekdays(mom, '') +
+                '|^' +
+                this.weekdaysShort(mom, '') +
+                '|^' +
+                this.weekdaysMin(mom, '');
+            this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');
+        }
+        // test the regex
+        if (
+            strict &&
+            format === 'dddd' &&
+            this._fullWeekdaysParse[i].test(weekdayName)
+        ) {
+            return i;
+        } else if (
+            strict &&
+            format === 'ddd' &&
+            this._shortWeekdaysParse[i].test(weekdayName)
+        ) {
+            return i;
+        } else if (
+            strict &&
+            format === 'dd' &&
+            this._minWeekdaysParse[i].test(weekdayName)
+        ) {
+            return i;
+        } else if (!strict && this._weekdaysParse[i].test(weekdayName)) {
+            return i;
+        }
+    }
+}
+
+// MOMENTS
+
+export function getSetDayOfWeek(input) {
+    if (!this.isValid()) {
+        return input != null ? this : NaN;
+    }
+
+    var day = get(this, 'Day');
+    if (input != null) {
+        input = parseWeekday(input, this.localeData());
+        return this.add(input - day, 'd');
+    } else {
+        return day;
+    }
+}
+
+export function getSetLocaleDayOfWeek(input) {
+    if (!this.isValid()) {
+        return input != null ? this : NaN;
+    }
+    var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7;
+    return input == null ? weekday : this.add(input - weekday, 'd');
+}
+
+export function getSetISODayOfWeek(input) {
+    if (!this.isValid()) {
+        return input != null ? this : NaN;
+    }
+
+    // behaves the same as moment#day except
+    // as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)
+    // as a setter, sunday should belong to the previous week.
+
+    if (input != null) {
+        var weekday = parseIsoWeekday(input, this.localeData());
+        return this.day(this.day() % 7 ? weekday : weekday - 7);
+    } else {
+        return this.day() || 7;
+    }
+}
+
+export function weekdaysRegex(isStrict) {
+    if (this._weekdaysParseExact) {
+        if (!hasOwnProp(this, '_weekdaysRegex')) {
+            computeWeekdaysParse.call(this);
+        }
+        if (isStrict) {
+            return this._weekdaysStrictRegex;
+        } else {
+            return this._weekdaysRegex;
+        }
+    } else {
+        if (!hasOwnProp(this, '_weekdaysRegex')) {
+            this._weekdaysRegex = defaultWeekdaysRegex;
+        }
+        return this._weekdaysStrictRegex && isStrict
+            ? this._weekdaysStrictRegex
+            : this._weekdaysRegex;
+    }
+}
+
+export function weekdaysShortRegex(isStrict) {
+    if (this._weekdaysParseExact) {
+        if (!hasOwnProp(this, '_weekdaysRegex')) {
+            computeWeekdaysParse.call(this);
+        }
+        if (isStrict) {
+            return this._weekdaysShortStrictRegex;
+        } else {
+            return this._weekdaysShortRegex;
+        }
+    } else {
+        if (!hasOwnProp(this, '_weekdaysShortRegex')) {
+            this._weekdaysShortRegex = defaultWeekdaysShortRegex;
+        }
+        return this._weekdaysShortStrictRegex && isStrict
+            ? this._weekdaysShortStrictRegex
+            : this._weekdaysShortRegex;
+    }
+}
+
+export function weekdaysMinRegex(isStrict) {
+    if (this._weekdaysParseExact) {
+        if (!hasOwnProp(this, '_weekdaysRegex')) {
+            computeWeekdaysParse.call(this);
+        }
+        if (isStrict) {
+            return this._weekdaysMinStrictRegex;
+        } else {
+            return this._weekdaysMinRegex;
+        }
+    } else {
+        if (!hasOwnProp(this, '_weekdaysMinRegex')) {
+            this._weekdaysMinRegex = defaultWeekdaysMinRegex;
+        }
+        return this._weekdaysMinStrictRegex && isStrict
+            ? this._weekdaysMinStrictRegex
+            : this._weekdaysMinRegex;
+    }
+}
+
+function computeWeekdaysParse() {
+    function cmpLenRev(a, b) {
+        return b.length - a.length;
+    }
+
+    var minPieces = [],
+        shortPieces = [],
+        longPieces = [],
+        mixedPieces = [],
+        i,
+        mom,
+        minp,
+        shortp,
+        longp;
+    for (i = 0; i < 7; i++) {
+        // make the regex if we don't have it already
+        mom = createUTC([2000, 1]).day(i);
+        minp = regexEscape(this.weekdaysMin(mom, ''));
+        shortp = regexEscape(this.weekdaysShort(mom, ''));
+        longp = regexEscape(this.weekdays(mom, ''));
+        minPieces.push(minp);
+        shortPieces.push(shortp);
+        longPieces.push(longp);
+        mixedPieces.push(minp);
+        mixedPieces.push(shortp);
+        mixedPieces.push(longp);
+    }
+    // Sorting makes sure if one weekday (or abbr) is a prefix of another it
+    // will match the longer piece.
+    minPieces.sort(cmpLenRev);
+    shortPieces.sort(cmpLenRev);
+    longPieces.sort(cmpLenRev);
+    mixedPieces.sort(cmpLenRev);
+
+    this._weekdaysRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
+    this._weekdaysShortRegex = this._weekdaysRegex;
+    this._weekdaysMinRegex = this._weekdaysRegex;
+
+    this._weekdaysStrictRegex = new RegExp(
+        '^(' + longPieces.join('|') + ')',
+        'i'
+    );
+    this._weekdaysShortStrictRegex = new RegExp(
+        '^(' + shortPieces.join('|') + ')',
+        'i'
+    );
+    this._weekdaysMinStrictRegex = new RegExp(
+        '^(' + minPieces.join('|') + ')',
+        'i'
+    );
+}
diff --git a/backend/node_modules/moment/src/lib/units/day-of-year.js b/backend/node_modules/moment/src/lib/units/day-of-year.js
new file mode 100644
index 0000000..4fae6f4
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/units/day-of-year.js
@@ -0,0 +1,28 @@
+import { addFormatToken } from '../format/format';
+import { addRegexToken, match3, match1to3 } from '../parse/regex';
+import { addParseToken } from '../parse/token';
+import toInt from '../utils/to-int';
+
+// FORMATTING
+
+addFormatToken('DDD', ['DDDD', 3], 'DDDo', 'dayOfYear');
+
+// PARSING
+
+addRegexToken('DDD', match1to3);
+addRegexToken('DDDD', match3);
+addParseToken(['DDD', 'DDDD'], function (input, array, config) {
+    config._dayOfYear = toInt(input);
+});
+
+// HELPERS
+
+// MOMENTS
+
+export function getSetDayOfYear(input) {
+    var dayOfYear =
+        Math.round(
+            (this.clone().startOf('day') - this.clone().startOf('year')) / 864e5
+        ) + 1;
+    return input == null ? dayOfYear : this.add(input - dayOfYear, 'd');
+}
diff --git a/backend/node_modules/moment/src/lib/units/era.js b/backend/node_modules/moment/src/lib/units/era.js
new file mode 100644
index 0000000..bc05622
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/units/era.js
@@ -0,0 +1,293 @@
+import { addFormatToken } from '../format/format';
+import { addRegexToken, matchUnsigned, regexEscape } from '../parse/regex';
+import { addParseToken } from '../parse/token';
+import { YEAR } from './constants';
+import { hooks as moment } from '../utils/hooks';
+import { getLocale } from '../locale/locales';
+import getParsingFlags from '../create/parsing-flags';
+import hasOwnProp from '../utils/has-own-prop';
+
+addFormatToken('N', 0, 0, 'eraAbbr');
+addFormatToken('NN', 0, 0, 'eraAbbr');
+addFormatToken('NNN', 0, 0, 'eraAbbr');
+addFormatToken('NNNN', 0, 0, 'eraName');
+addFormatToken('NNNNN', 0, 0, 'eraNarrow');
+
+addFormatToken('y', ['y', 1], 'yo', 'eraYear');
+addFormatToken('y', ['yy', 2], 0, 'eraYear');
+addFormatToken('y', ['yyy', 3], 0, 'eraYear');
+addFormatToken('y', ['yyyy', 4], 0, 'eraYear');
+
+addRegexToken('N', matchEraAbbr);
+addRegexToken('NN', matchEraAbbr);
+addRegexToken('NNN', matchEraAbbr);
+addRegexToken('NNNN', matchEraName);
+addRegexToken('NNNNN', matchEraNarrow);
+
+addParseToken(
+    ['N', 'NN', 'NNN', 'NNNN', 'NNNNN'],
+    function (input, array, config, token) {
+        var era = config._locale.erasParse(input, token, config._strict);
+        if (era) {
+            getParsingFlags(config).era = era;
+        } else {
+            getParsingFlags(config).invalidEra = input;
+        }
+    }
+);
+
+addRegexToken('y', matchUnsigned);
+addRegexToken('yy', matchUnsigned);
+addRegexToken('yyy', matchUnsigned);
+addRegexToken('yyyy', matchUnsigned);
+addRegexToken('yo', matchEraYearOrdinal);
+
+addParseToken(['y', 'yy', 'yyy', 'yyyy'], YEAR);
+addParseToken(['yo'], function (input, array, config, token) {
+    var match;
+    if (config._locale._eraYearOrdinalRegex) {
+        match = input.match(config._locale._eraYearOrdinalRegex);
+    }
+
+    if (config._locale.eraYearOrdinalParse) {
+        array[YEAR] = config._locale.eraYearOrdinalParse(input, match);
+    } else {
+        array[YEAR] = parseInt(input, 10);
+    }
+});
+
+export function localeEras(m, format) {
+    var i,
+        l,
+        date,
+        eras = this._eras || getLocale('en')._eras;
+    for (i = 0, l = eras.length; i < l; ++i) {
+        switch (typeof eras[i].since) {
+            case 'string':
+                // truncate time
+                date = moment(eras[i].since).startOf('day');
+                eras[i].since = date.valueOf();
+                break;
+        }
+
+        switch (typeof eras[i].until) {
+            case 'undefined':
+                eras[i].until = +Infinity;
+                break;
+            case 'string':
+                // truncate time
+                date = moment(eras[i].until).startOf('day').valueOf();
+                eras[i].until = date.valueOf();
+                break;
+        }
+    }
+    return eras;
+}
+
+export function localeErasParse(eraName, format, strict) {
+    var i,
+        l,
+        eras = this.eras(),
+        name,
+        abbr,
+        narrow;
+    eraName = eraName.toUpperCase();
+
+    for (i = 0, l = eras.length; i < l; ++i) {
+        name = eras[i].name.toUpperCase();
+        abbr = eras[i].abbr.toUpperCase();
+        narrow = eras[i].narrow.toUpperCase();
+
+        if (strict) {
+            switch (format) {
+                case 'N':
+                case 'NN':
+                case 'NNN':
+                    if (abbr === eraName) {
+                        return eras[i];
+                    }
+                    break;
+
+                case 'NNNN':
+                    if (name === eraName) {
+                        return eras[i];
+                    }
+                    break;
+
+                case 'NNNNN':
+                    if (narrow === eraName) {
+                        return eras[i];
+                    }
+                    break;
+            }
+        } else if ([name, abbr, narrow].indexOf(eraName) >= 0) {
+            return eras[i];
+        }
+    }
+}
+
+export function localeErasConvertYear(era, year) {
+    var dir = era.since <= era.until ? +1 : -1;
+    if (year === undefined) {
+        return moment(era.since).year();
+    } else {
+        return moment(era.since).year() + (year - era.offset) * dir;
+    }
+}
+
+export function getEraName() {
+    var i,
+        l,
+        val,
+        eras = this.localeData().eras();
+    for (i = 0, l = eras.length; i < l; ++i) {
+        // truncate time
+        val = this.clone().startOf('day').valueOf();
+
+        if (eras[i].since <= val && val <= eras[i].until) {
+            return eras[i].name;
+        }
+        if (eras[i].until <= val && val <= eras[i].since) {
+            return eras[i].name;
+        }
+    }
+
+    return '';
+}
+
+export function getEraNarrow() {
+    var i,
+        l,
+        val,
+        eras = this.localeData().eras();
+    for (i = 0, l = eras.length; i < l; ++i) {
+        // truncate time
+        val = this.clone().startOf('day').valueOf();
+
+        if (eras[i].since <= val && val <= eras[i].until) {
+            return eras[i].narrow;
+        }
+        if (eras[i].until <= val && val <= eras[i].since) {
+            return eras[i].narrow;
+        }
+    }
+
+    return '';
+}
+
+export function getEraAbbr() {
+    var i,
+        l,
+        val,
+        eras = this.localeData().eras();
+    for (i = 0, l = eras.length; i < l; ++i) {
+        // truncate time
+        val = this.clone().startOf('day').valueOf();
+
+        if (eras[i].since <= val && val <= eras[i].until) {
+            return eras[i].abbr;
+        }
+        if (eras[i].until <= val && val <= eras[i].since) {
+            return eras[i].abbr;
+        }
+    }
+
+    return '';
+}
+
+export function getEraYear() {
+    var i,
+        l,
+        dir,
+        val,
+        eras = this.localeData().eras();
+    for (i = 0, l = eras.length; i < l; ++i) {
+        dir = eras[i].since <= eras[i].until ? +1 : -1;
+
+        // truncate time
+        val = this.clone().startOf('day').valueOf();
+
+        if (
+            (eras[i].since <= val && val <= eras[i].until) ||
+            (eras[i].until <= val && val <= eras[i].since)
+        ) {
+            return (
+                (this.year() - moment(eras[i].since).year()) * dir +
+                eras[i].offset
+            );
+        }
+    }
+
+    return this.year();
+}
+
+export function erasNameRegex(isStrict) {
+    if (!hasOwnProp(this, '_erasNameRegex')) {
+        computeErasParse.call(this);
+    }
+    return isStrict ? this._erasNameRegex : this._erasRegex;
+}
+
+export function erasAbbrRegex(isStrict) {
+    if (!hasOwnProp(this, '_erasAbbrRegex')) {
+        computeErasParse.call(this);
+    }
+    return isStrict ? this._erasAbbrRegex : this._erasRegex;
+}
+
+export function erasNarrowRegex(isStrict) {
+    if (!hasOwnProp(this, '_erasNarrowRegex')) {
+        computeErasParse.call(this);
+    }
+    return isStrict ? this._erasNarrowRegex : this._erasRegex;
+}
+
+function matchEraAbbr(isStrict, locale) {
+    return locale.erasAbbrRegex(isStrict);
+}
+
+function matchEraName(isStrict, locale) {
+    return locale.erasNameRegex(isStrict);
+}
+
+function matchEraNarrow(isStrict, locale) {
+    return locale.erasNarrowRegex(isStrict);
+}
+
+function matchEraYearOrdinal(isStrict, locale) {
+    return locale._eraYearOrdinalRegex || matchUnsigned;
+}
+
+function computeErasParse() {
+    var abbrPieces = [],
+        namePieces = [],
+        narrowPieces = [],
+        mixedPieces = [],
+        i,
+        l,
+        erasName,
+        erasAbbr,
+        erasNarrow,
+        eras = this.eras();
+
+    for (i = 0, l = eras.length; i < l; ++i) {
+        erasName = regexEscape(eras[i].name);
+        erasAbbr = regexEscape(eras[i].abbr);
+        erasNarrow = regexEscape(eras[i].narrow);
+
+        namePieces.push(erasName);
+        abbrPieces.push(erasAbbr);
+        narrowPieces.push(erasNarrow);
+        mixedPieces.push(erasName);
+        mixedPieces.push(erasAbbr);
+        mixedPieces.push(erasNarrow);
+    }
+
+    this._erasRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
+    this._erasNameRegex = new RegExp('^(' + namePieces.join('|') + ')', 'i');
+    this._erasAbbrRegex = new RegExp('^(' + abbrPieces.join('|') + ')', 'i');
+    this._erasNarrowRegex = new RegExp(
+        '^(' + narrowPieces.join('|') + ')',
+        'i'
+    );
+}
diff --git a/backend/node_modules/moment/src/lib/units/hour.js b/backend/node_modules/moment/src/lib/units/hour.js
new file mode 100644
index 0000000..f24815f
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/units/hour.js
@@ -0,0 +1,152 @@
+import { makeGetSet } from '../moment/get-set';
+import { addFormatToken } from '../format/format';
+import {
+    addRegexToken,
+    match1to2,
+    match2,
+    match3to4,
+    match5to6,
+    match1to2NoLeadingZero,
+    match1to2HasZero,
+} from '../parse/regex';
+import { addParseToken } from '../parse/token';
+import { HOUR, MINUTE, SECOND } from './constants';
+import toInt from '../utils/to-int';
+import zeroFill from '../utils/zero-fill';
+import getParsingFlags from '../create/parsing-flags';
+
+// FORMATTING
+
+function hFormat() {
+    return this.hours() % 12 || 12;
+}
+
+function kFormat() {
+    return this.hours() || 24;
+}
+
+addFormatToken('H', ['HH', 2], 0, 'hour');
+addFormatToken('h', ['hh', 2], 0, hFormat);
+addFormatToken('k', ['kk', 2], 0, kFormat);
+
+addFormatToken('hmm', 0, 0, function () {
+    return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2);
+});
+
+addFormatToken('hmmss', 0, 0, function () {
+    return (
+        '' +
+        hFormat.apply(this) +
+        zeroFill(this.minutes(), 2) +
+        zeroFill(this.seconds(), 2)
+    );
+});
+
+addFormatToken('Hmm', 0, 0, function () {
+    return '' + this.hours() + zeroFill(this.minutes(), 2);
+});
+
+addFormatToken('Hmmss', 0, 0, function () {
+    return (
+        '' +
+        this.hours() +
+        zeroFill(this.minutes(), 2) +
+        zeroFill(this.seconds(), 2)
+    );
+});
+
+function meridiem(token, lowercase) {
+    addFormatToken(token, 0, 0, function () {
+        return this.localeData().meridiem(
+            this.hours(),
+            this.minutes(),
+            lowercase
+        );
+    });
+}
+
+meridiem('a', true);
+meridiem('A', false);
+
+// PARSING
+
+function matchMeridiem(isStrict, locale) {
+    return locale._meridiemParse;
+}
+
+addRegexToken('a', matchMeridiem);
+addRegexToken('A', matchMeridiem);
+addRegexToken('H', match1to2, match1to2HasZero);
+addRegexToken('h', match1to2, match1to2NoLeadingZero);
+addRegexToken('k', match1to2, match1to2NoLeadingZero);
+addRegexToken('HH', match1to2, match2);
+addRegexToken('hh', match1to2, match2);
+addRegexToken('kk', match1to2, match2);
+
+addRegexToken('hmm', match3to4);
+addRegexToken('hmmss', match5to6);
+addRegexToken('Hmm', match3to4);
+addRegexToken('Hmmss', match5to6);
+
+addParseToken(['H', 'HH'], HOUR);
+addParseToken(['k', 'kk'], function (input, array, config) {
+    var kInput = toInt(input);
+    array[HOUR] = kInput === 24 ? 0 : kInput;
+});
+addParseToken(['a', 'A'], function (input, array, config) {
+    config._isPm = config._locale.isPM(input);
+    config._meridiem = input;
+});
+addParseToken(['h', 'hh'], function (input, array, config) {
+    array[HOUR] = toInt(input);
+    getParsingFlags(config).bigHour = true;
+});
+addParseToken('hmm', function (input, array, config) {
+    var pos = input.length - 2;
+    array[HOUR] = toInt(input.substr(0, pos));
+    array[MINUTE] = toInt(input.substr(pos));
+    getParsingFlags(config).bigHour = true;
+});
+addParseToken('hmmss', function (input, array, config) {
+    var pos1 = input.length - 4,
+        pos2 = input.length - 2;
+    array[HOUR] = toInt(input.substr(0, pos1));
+    array[MINUTE] = toInt(input.substr(pos1, 2));
+    array[SECOND] = toInt(input.substr(pos2));
+    getParsingFlags(config).bigHour = true;
+});
+addParseToken('Hmm', function (input, array, config) {
+    var pos = input.length - 2;
+    array[HOUR] = toInt(input.substr(0, pos));
+    array[MINUTE] = toInt(input.substr(pos));
+});
+addParseToken('Hmmss', function (input, array, config) {
+    var pos1 = input.length - 4,
+        pos2 = input.length - 2;
+    array[HOUR] = toInt(input.substr(0, pos1));
+    array[MINUTE] = toInt(input.substr(pos1, 2));
+    array[SECOND] = toInt(input.substr(pos2));
+});
+
+// LOCALES
+
+export function localeIsPM(input) {
+    // IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays
+    // Using charAt should be more compatible.
+    return (input + '').toLowerCase().charAt(0) === 'p';
+}
+
+export var defaultLocaleMeridiemParse = /[ap]\.?m?\.?/i,
+    // Setting the hour should keep the time, because the user explicitly
+    // specified which hour they want. So trying to maintain the same hour (in
+    // a new timezone) makes sense. Adding/subtracting hours does not follow
+    // this rule.
+    getSetHour = makeGetSet('Hours', true);
+
+export function localeMeridiem(hours, minutes, isLower) {
+    if (hours > 11) {
+        return isLower ? 'pm' : 'PM';
+    } else {
+        return isLower ? 'am' : 'AM';
+    }
+}
diff --git a/backend/node_modules/moment/src/lib/units/millisecond.js b/backend/node_modules/moment/src/lib/units/millisecond.js
new file mode 100644
index 0000000..4008c9b
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/units/millisecond.js
@@ -0,0 +1,66 @@
+import { makeGetSet } from '../moment/get-set';
+import { addFormatToken } from '../format/format';
+import {
+    addRegexToken,
+    match1,
+    match2,
+    match3,
+    match1to3,
+    matchUnsigned,
+} from '../parse/regex';
+import { addParseToken } from '../parse/token';
+import { MILLISECOND } from './constants';
+import toInt from '../utils/to-int';
+
+// FORMATTING
+
+addFormatToken('S', 0, 0, function () {
+    return ~~(this.millisecond() / 100);
+});
+
+addFormatToken(0, ['SS', 2], 0, function () {
+    return ~~(this.millisecond() / 10);
+});
+
+addFormatToken(0, ['SSS', 3], 0, 'millisecond');
+addFormatToken(0, ['SSSS', 4], 0, function () {
+    return this.millisecond() * 10;
+});
+addFormatToken(0, ['SSSSS', 5], 0, function () {
+    return this.millisecond() * 100;
+});
+addFormatToken(0, ['SSSSSS', 6], 0, function () {
+    return this.millisecond() * 1000;
+});
+addFormatToken(0, ['SSSSSSS', 7], 0, function () {
+    return this.millisecond() * 10000;
+});
+addFormatToken(0, ['SSSSSSSS', 8], 0, function () {
+    return this.millisecond() * 100000;
+});
+addFormatToken(0, ['SSSSSSSSS', 9], 0, function () {
+    return this.millisecond() * 1000000;
+});
+
+// PARSING
+
+addRegexToken('S', match1to3, match1);
+addRegexToken('SS', match1to3, match2);
+addRegexToken('SSS', match1to3, match3);
+
+var token, getSetMillisecond;
+for (token = 'SSSS'; token.length <= 9; token += 'S') {
+    addRegexToken(token, matchUnsigned);
+}
+
+function parseMs(input, array) {
+    array[MILLISECOND] = toInt(('0.' + input) * 1000);
+}
+
+for (token = 'S'; token.length <= 9; token += 'S') {
+    addParseToken(token, parseMs);
+}
+
+getSetMillisecond = makeGetSet('Milliseconds', false);
+
+export { getSetMillisecond };
diff --git a/backend/node_modules/moment/src/lib/units/minute.js b/backend/node_modules/moment/src/lib/units/minute.js
new file mode 100644
index 0000000..72f163f
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/units/minute.js
@@ -0,0 +1,24 @@
+import { makeGetSet } from '../moment/get-set';
+import { addFormatToken } from '../format/format';
+import {
+    addRegexToken,
+    match1to2,
+    match2,
+    match1to2HasZero,
+} from '../parse/regex';
+import { addParseToken } from '../parse/token';
+import { MINUTE } from './constants';
+
+// FORMATTING
+
+addFormatToken('m', ['mm', 2], 0, 'minute');
+
+// PARSING
+
+addRegexToken('m', match1to2, match1to2HasZero);
+addRegexToken('mm', match1to2, match2);
+addParseToken(['m', 'mm'], MINUTE);
+
+// MOMENTS
+
+export var getSetMinute = makeGetSet('Minutes', false);
diff --git a/backend/node_modules/moment/src/lib/units/month.js b/backend/node_modules/moment/src/lib/units/month.js
new file mode 100644
index 0000000..9a326aa
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/units/month.js
@@ -0,0 +1,340 @@
+import { get } from '../moment/get-set';
+import hasOwnProp from '../utils/has-own-prop';
+import { addFormatToken } from '../format/format';
+import {
+    addRegexToken,
+    match1to2,
+    match2,
+    matchWord,
+    regexEscape,
+    match1to2NoLeadingZero,
+} from '../parse/regex';
+import { addParseToken } from '../parse/token';
+import { hooks } from '../utils/hooks';
+import { MONTH } from './constants';
+import toInt from '../utils/to-int';
+import isArray from '../utils/is-array';
+import isNumber from '../utils/is-number';
+import mod from '../utils/mod';
+import indexOf from '../utils/index-of';
+import { createUTC } from '../create/utc';
+import getParsingFlags from '../create/parsing-flags';
+import { isLeapYear } from '../utils/is-leap-year';
+
+export function daysInMonth(year, month) {
+    if (isNaN(year) || isNaN(month)) {
+        return NaN;
+    }
+    var modMonth = mod(month, 12);
+    year += (month - modMonth) / 12;
+    return modMonth === 1
+        ? isLeapYear(year)
+            ? 29
+            : 28
+        : 31 - ((modMonth % 7) % 2);
+}
+
+// FORMATTING
+
+addFormatToken('M', ['MM', 2], 'Mo', function () {
+    return this.month() + 1;
+});
+
+addFormatToken('MMM', 0, 0, function (format) {
+    return this.localeData().monthsShort(this, format);
+});
+
+addFormatToken('MMMM', 0, 0, function (format) {
+    return this.localeData().months(this, format);
+});
+
+// PARSING
+
+addRegexToken('M', match1to2, match1to2NoLeadingZero);
+addRegexToken('MM', match1to2, match2);
+addRegexToken('MMM', function (isStrict, locale) {
+    return locale.monthsShortRegex(isStrict);
+});
+addRegexToken('MMMM', function (isStrict, locale) {
+    return locale.monthsRegex(isStrict);
+});
+
+addParseToken(['M', 'MM'], function (input, array) {
+    array[MONTH] = toInt(input) - 1;
+});
+
+addParseToken(['MMM', 'MMMM'], function (input, array, config, token) {
+    var month = config._locale.monthsParse(input, token, config._strict);
+    // if we didn't find a month name, mark the date as invalid.
+    if (month != null) {
+        array[MONTH] = month;
+    } else {
+        getParsingFlags(config).invalidMonth = input;
+    }
+});
+
+// LOCALES
+
+var defaultLocaleMonths =
+        'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+    defaultLocaleMonthsShort =
+        'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+    MONTHS_IN_FORMAT = /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?/,
+    defaultMonthsShortRegex = matchWord,
+    defaultMonthsRegex = matchWord;
+
+export { defaultLocaleMonths, defaultLocaleMonthsShort };
+
+export function localeMonths(m, format) {
+    if (!m) {
+        return isArray(this._months)
+            ? this._months
+            : this._months['standalone'];
+    }
+    return isArray(this._months)
+        ? this._months[m.month()]
+        : this._months[
+              (this._months.isFormat || MONTHS_IN_FORMAT).test(format)
+                  ? 'format'
+                  : 'standalone'
+          ][m.month()];
+}
+
+export function localeMonthsShort(m, format) {
+    if (!m) {
+        return isArray(this._monthsShort)
+            ? this._monthsShort
+            : this._monthsShort['standalone'];
+    }
+    return isArray(this._monthsShort)
+        ? this._monthsShort[m.month()]
+        : this._monthsShort[
+              MONTHS_IN_FORMAT.test(format) ? 'format' : 'standalone'
+          ][m.month()];
+}
+
+function handleStrictParse(monthName, format, strict) {
+    var i,
+        ii,
+        mom,
+        llc = monthName.toLocaleLowerCase();
+    if (!this._monthsParse) {
+        // this is not used
+        this._monthsParse = [];
+        this._longMonthsParse = [];
+        this._shortMonthsParse = [];
+        for (i = 0; i < 12; ++i) {
+            mom = createUTC([2000, i]);
+            this._shortMonthsParse[i] = this.monthsShort(
+                mom,
+                ''
+            ).toLocaleLowerCase();
+            this._longMonthsParse[i] = this.months(mom, '').toLocaleLowerCase();
+        }
+    }
+
+    if (strict) {
+        if (format === 'MMM') {
+            ii = indexOf.call(this._shortMonthsParse, llc);
+            return ii !== -1 ? ii : null;
+        } else {
+            ii = indexOf.call(this._longMonthsParse, llc);
+            return ii !== -1 ? ii : null;
+        }
+    } else {
+        if (format === 'MMM') {
+            ii = indexOf.call(this._shortMonthsParse, llc);
+            if (ii !== -1) {
+                return ii;
+            }
+            ii = indexOf.call(this._longMonthsParse, llc);
+            return ii !== -1 ? ii : null;
+        } else {
+            ii = indexOf.call(this._longMonthsParse, llc);
+            if (ii !== -1) {
+                return ii;
+            }
+            ii = indexOf.call(this._shortMonthsParse, llc);
+            return ii !== -1 ? ii : null;
+        }
+    }
+}
+
+export function localeMonthsParse(monthName, format, strict) {
+    var i, mom, regex;
+
+    if (this._monthsParseExact) {
+        return handleStrictParse.call(this, monthName, format, strict);
+    }
+
+    if (!this._monthsParse) {
+        this._monthsParse = [];
+        this._longMonthsParse = [];
+        this._shortMonthsParse = [];
+    }
+
+    // TODO: add sorting
+    // Sorting makes sure if one month (or abbr) is a prefix of another
+    // see sorting in computeMonthsParse
+    for (i = 0; i < 12; i++) {
+        // make the regex if we don't have it already
+        mom = createUTC([2000, i]);
+        if (strict && !this._longMonthsParse[i]) {
+            this._longMonthsParse[i] = new RegExp(
+                '^' + this.months(mom, '').replace('.', '') + '$',
+                'i'
+            );
+            this._shortMonthsParse[i] = new RegExp(
+                '^' + this.monthsShort(mom, '').replace('.', '') + '$',
+                'i'
+            );
+        }
+        if (!strict && !this._monthsParse[i]) {
+            regex =
+                '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');
+            this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');
+        }
+        // test the regex
+        if (
+            strict &&
+            format === 'MMMM' &&
+            this._longMonthsParse[i].test(monthName)
+        ) {
+            return i;
+        } else if (
+            strict &&
+            format === 'MMM' &&
+            this._shortMonthsParse[i].test(monthName)
+        ) {
+            return i;
+        } else if (!strict && this._monthsParse[i].test(monthName)) {
+            return i;
+        }
+    }
+}
+
+// MOMENTS
+
+export function setMonth(mom, value) {
+    if (!mom.isValid()) {
+        // No op
+        return mom;
+    }
+
+    if (typeof value === 'string') {
+        if (/^\d+$/.test(value)) {
+            value = toInt(value);
+        } else {
+            value = mom.localeData().monthsParse(value);
+            // TODO: Another silent failure?
+            if (!isNumber(value)) {
+                return mom;
+            }
+        }
+    }
+
+    var month = value,
+        date = mom.date();
+
+    date = date < 29 ? date : Math.min(date, daysInMonth(mom.year(), month));
+    void (mom._isUTC
+        ? mom._d.setUTCMonth(month, date)
+        : mom._d.setMonth(month, date));
+    return mom;
+}
+
+export function getSetMonth(value) {
+    if (value != null) {
+        setMonth(this, value);
+        hooks.updateOffset(this, true);
+        return this;
+    } else {
+        return get(this, 'Month');
+    }
+}
+
+export function getDaysInMonth() {
+    return daysInMonth(this.year(), this.month());
+}
+
+export function monthsShortRegex(isStrict) {
+    if (this._monthsParseExact) {
+        if (!hasOwnProp(this, '_monthsRegex')) {
+            computeMonthsParse.call(this);
+        }
+        if (isStrict) {
+            return this._monthsShortStrictRegex;
+        } else {
+            return this._monthsShortRegex;
+        }
+    } else {
+        if (!hasOwnProp(this, '_monthsShortRegex')) {
+            this._monthsShortRegex = defaultMonthsShortRegex;
+        }
+        return this._monthsShortStrictRegex && isStrict
+            ? this._monthsShortStrictRegex
+            : this._monthsShortRegex;
+    }
+}
+
+export function monthsRegex(isStrict) {
+    if (this._monthsParseExact) {
+        if (!hasOwnProp(this, '_monthsRegex')) {
+            computeMonthsParse.call(this);
+        }
+        if (isStrict) {
+            return this._monthsStrictRegex;
+        } else {
+            return this._monthsRegex;
+        }
+    } else {
+        if (!hasOwnProp(this, '_monthsRegex')) {
+            this._monthsRegex = defaultMonthsRegex;
+        }
+        return this._monthsStrictRegex && isStrict
+            ? this._monthsStrictRegex
+            : this._monthsRegex;
+    }
+}
+
+function computeMonthsParse() {
+    function cmpLenRev(a, b) {
+        return b.length - a.length;
+    }
+
+    var shortPieces = [],
+        longPieces = [],
+        mixedPieces = [],
+        i,
+        mom,
+        shortP,
+        longP;
+    for (i = 0; i < 12; i++) {
+        // make the regex if we don't have it already
+        mom = createUTC([2000, i]);
+        shortP = regexEscape(this.monthsShort(mom, ''));
+        longP = regexEscape(this.months(mom, ''));
+        shortPieces.push(shortP);
+        longPieces.push(longP);
+        mixedPieces.push(longP);
+        mixedPieces.push(shortP);
+    }
+    // Sorting makes sure if one month (or abbr) is a prefix of another it
+    // will match the longer piece.
+    shortPieces.sort(cmpLenRev);
+    longPieces.sort(cmpLenRev);
+    mixedPieces.sort(cmpLenRev);
+
+    this._monthsRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
+    this._monthsShortRegex = this._monthsRegex;
+    this._monthsStrictRegex = new RegExp(
+        '^(' + longPieces.join('|') + ')',
+        'i'
+    );
+    this._monthsShortStrictRegex = new RegExp(
+        '^(' + shortPieces.join('|') + ')',
+        'i'
+    );
+}
diff --git a/backend/node_modules/moment/src/lib/units/offset.js b/backend/node_modules/moment/src/lib/units/offset.js
new file mode 100644
index 0000000..668ebb9
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/units/offset.js
@@ -0,0 +1,249 @@
+import zeroFill from '../utils/zero-fill';
+import { createDuration } from '../duration/create';
+import { addSubtract } from '../moment/add-subtract';
+import { isMoment, copyConfig } from '../moment/constructor';
+import { addFormatToken } from '../format/format';
+import { addRegexToken, matchOffset, matchShortOffset } from '../parse/regex';
+import { addParseToken } from '../parse/token';
+import { createLocal } from '../create/local';
+import { prepareConfig } from '../create/from-anything';
+import { createUTC } from '../create/utc';
+import isDate from '../utils/is-date';
+import toInt from '../utils/to-int';
+import isUndefined from '../utils/is-undefined';
+import compareArrays from '../utils/compare-arrays';
+import { hooks } from '../utils/hooks';
+
+// FORMATTING
+
+function offset(token, separator) {
+    addFormatToken(token, 0, 0, function () {
+        var offset = this.utcOffset(),
+            sign = '+';
+        if (offset < 0) {
+            offset = -offset;
+            sign = '-';
+        }
+        return (
+            sign +
+            zeroFill(~~(offset / 60), 2) +
+            separator +
+            zeroFill(~~offset % 60, 2)
+        );
+    });
+}
+
+offset('Z', ':');
+offset('ZZ', '');
+
+// PARSING
+
+addRegexToken('Z', matchShortOffset);
+addRegexToken('ZZ', matchShortOffset);
+addParseToken(['Z', 'ZZ'], function (input, array, config) {
+    config._useUTC = true;
+    config._tzm = offsetFromString(matchShortOffset, input);
+});
+
+// HELPERS
+
+// timezone chunker
+// '+10:00' > ['10',  '00']
+// '-1530'  > ['-15', '30']
+var chunkOffset = /([\+\-]|\d\d)/gi;
+
+function offsetFromString(matcher, string) {
+    var matches = (string || '').match(matcher),
+        chunk,
+        parts,
+        minutes;
+
+    if (matches === null) {
+        return null;
+    }
+
+    chunk = matches[matches.length - 1] || [];
+    parts = (chunk + '').match(chunkOffset) || ['-', 0, 0];
+    minutes = +(parts[1] * 60) + toInt(parts[2]);
+
+    return minutes === 0 ? 0 : parts[0] === '+' ? minutes : -minutes;
+}
+
+// Return a moment from input, that is local/utc/zone equivalent to model.
+export function cloneWithOffset(input, model) {
+    var res, diff;
+    if (model._isUTC) {
+        res = model.clone();
+        diff =
+            (isMoment(input) || isDate(input)
+                ? input.valueOf()
+                : createLocal(input).valueOf()) - res.valueOf();
+        // Use low-level api, because this fn is low-level api.
+        res._d.setTime(res._d.valueOf() + diff);
+        hooks.updateOffset(res, false);
+        return res;
+    } else {
+        return createLocal(input).local();
+    }
+}
+
+function getDateOffset(m) {
+    // On Firefox.24 Date#getTimezoneOffset returns a floating point.
+    // https://github.com/moment/moment/pull/1871
+    return -Math.round(m._d.getTimezoneOffset());
+}
+
+// HOOKS
+
+// This function will be called whenever a moment is mutated.
+// It is intended to keep the offset in sync with the timezone.
+hooks.updateOffset = function () {};
+
+// MOMENTS
+
+// keepLocalTime = true means only change the timezone, without
+// affecting the local hour. So 5:31:26 +0300 --[utcOffset(2, true)]-->
+// 5:31:26 +0200 It is possible that 5:31:26 doesn't exist with offset
+// +0200, so we adjust the time as needed, to be valid.
+//
+// Keeping the time actually adds/subtracts (one hour)
+// from the actual represented time. That is why we call updateOffset
+// a second time. In case it wants us to change the offset again
+// _changeInProgress == true case, then we have to adjust, because
+// there is no such time in the given timezone.
+export function getSetOffset(input, keepLocalTime, keepMinutes) {
+    var offset = this._offset || 0,
+        localAdjust;
+    if (!this.isValid()) {
+        return input != null ? this : NaN;
+    }
+    if (input != null) {
+        if (typeof input === 'string') {
+            input = offsetFromString(matchShortOffset, input);
+            if (input === null) {
+                return this;
+            }
+        } else if (Math.abs(input) < 16 && !keepMinutes) {
+            input = input * 60;
+        }
+        if (!this._isUTC && keepLocalTime) {
+            localAdjust = getDateOffset(this);
+        }
+        this._offset = input;
+        this._isUTC = true;
+        if (localAdjust != null) {
+            this.add(localAdjust, 'm');
+        }
+        if (offset !== input) {
+            if (!keepLocalTime || this._changeInProgress) {
+                addSubtract(
+                    this,
+                    createDuration(input - offset, 'm'),
+                    1,
+                    false
+                );
+            } else if (!this._changeInProgress) {
+                this._changeInProgress = true;
+                hooks.updateOffset(this, true);
+                this._changeInProgress = null;
+            }
+        }
+        return this;
+    } else {
+        return this._isUTC ? offset : getDateOffset(this);
+    }
+}
+
+export function getSetZone(input, keepLocalTime) {
+    if (input != null) {
+        if (typeof input !== 'string') {
+            input = -input;
+        }
+
+        this.utcOffset(input, keepLocalTime);
+
+        return this;
+    } else {
+        return -this.utcOffset();
+    }
+}
+
+export function setOffsetToUTC(keepLocalTime) {
+    return this.utcOffset(0, keepLocalTime);
+}
+
+export function setOffsetToLocal(keepLocalTime) {
+    if (this._isUTC) {
+        this.utcOffset(0, keepLocalTime);
+        this._isUTC = false;
+
+        if (keepLocalTime) {
+            this.subtract(getDateOffset(this), 'm');
+        }
+    }
+    return this;
+}
+
+export function setOffsetToParsedOffset() {
+    if (this._tzm != null) {
+        this.utcOffset(this._tzm, false, true);
+    } else if (typeof this._i === 'string') {
+        var tZone = offsetFromString(matchOffset, this._i);
+        if (tZone != null) {
+            this.utcOffset(tZone);
+        } else {
+            this.utcOffset(0, true);
+        }
+    }
+    return this;
+}
+
+export function hasAlignedHourOffset(input) {
+    if (!this.isValid()) {
+        return false;
+    }
+    input = input ? createLocal(input).utcOffset() : 0;
+
+    return (this.utcOffset() - input) % 60 === 0;
+}
+
+export function isDaylightSavingTime() {
+    return (
+        this.utcOffset() > this.clone().month(0).utcOffset() ||
+        this.utcOffset() > this.clone().month(5).utcOffset()
+    );
+}
+
+export function isDaylightSavingTimeShifted() {
+    if (!isUndefined(this._isDSTShifted)) {
+        return this._isDSTShifted;
+    }
+
+    var c = {},
+        other;
+
+    copyConfig(c, this);
+    c = prepareConfig(c);
+
+    if (c._a) {
+        other = c._isUTC ? createUTC(c._a) : createLocal(c._a);
+        this._isDSTShifted =
+            this.isValid() && compareArrays(c._a, other.toArray()) > 0;
+    } else {
+        this._isDSTShifted = false;
+    }
+
+    return this._isDSTShifted;
+}
+
+export function isLocal() {
+    return this.isValid() ? !this._isUTC : false;
+}
+
+export function isUtcOffset() {
+    return this.isValid() ? this._isUTC : false;
+}
+
+export function isUtc() {
+    return this.isValid() ? this._isUTC && this._offset === 0 : false;
+}
diff --git a/backend/node_modules/moment/src/lib/units/priorities.js b/backend/node_modules/moment/src/lib/units/priorities.js
new file mode 100644
index 0000000..b42d2fc
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/units/priorities.js
@@ -0,0 +1,34 @@
+import hasOwnProp from '../utils/has-own-prop';
+
+var priorities = {
+    date: 9,
+    day: 11,
+    weekday: 11,
+    isoWeekday: 11,
+    dayOfYear: 4,
+    hour: 13,
+    millisecond: 16,
+    minute: 14,
+    month: 8,
+    quarter: 7,
+    second: 15,
+    weekYear: 1,
+    isoWeekYear: 1,
+    week: 5,
+    isoWeek: 5,
+    year: 1,
+};
+
+export function getPrioritizedUnits(unitsObj) {
+    var units = [],
+        u;
+    for (u in unitsObj) {
+        if (hasOwnProp(unitsObj, u)) {
+            units.push({ unit: u, priority: priorities[u] });
+        }
+    }
+    units.sort(function (a, b) {
+        return a.priority - b.priority;
+    });
+    return units;
+}
diff --git a/backend/node_modules/moment/src/lib/units/quarter.js b/backend/node_modules/moment/src/lib/units/quarter.js
new file mode 100644
index 0000000..4638609
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/units/quarter.js
@@ -0,0 +1,24 @@
+import { addFormatToken } from '../format/format';
+import { addRegexToken, match1 } from '../parse/regex';
+import { addParseToken } from '../parse/token';
+import { MONTH } from './constants';
+import toInt from '../utils/to-int';
+
+// FORMATTING
+
+addFormatToken('Q', 0, 'Qo', 'quarter');
+
+// PARSING
+
+addRegexToken('Q', match1);
+addParseToken('Q', function (input, array) {
+    array[MONTH] = (toInt(input) - 1) * 3;
+});
+
+// MOMENTS
+
+export function getSetQuarter(input) {
+    return input == null
+        ? Math.ceil((this.month() + 1) / 3)
+        : this.month((input - 1) * 3 + (this.month() % 3));
+}
diff --git a/backend/node_modules/moment/src/lib/units/second.js b/backend/node_modules/moment/src/lib/units/second.js
new file mode 100644
index 0000000..8142317
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/units/second.js
@@ -0,0 +1,24 @@
+import { makeGetSet } from '../moment/get-set';
+import { addFormatToken } from '../format/format';
+import {
+    addRegexToken,
+    match1to2,
+    match2,
+    match1to2HasZero,
+} from '../parse/regex';
+import { addParseToken } from '../parse/token';
+import { SECOND } from './constants';
+
+// FORMATTING
+
+addFormatToken('s', ['ss', 2], 0, 'second');
+
+// PARSING
+
+addRegexToken('s', match1to2, match1to2HasZero);
+addRegexToken('ss', match1to2, match2);
+addParseToken(['s', 'ss'], SECOND);
+
+// MOMENTS
+
+export var getSetSecond = makeGetSet('Seconds', false);
diff --git a/backend/node_modules/moment/src/lib/units/timestamp.js b/backend/node_modules/moment/src/lib/units/timestamp.js
new file mode 100644
index 0000000..50c6b87
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/units/timestamp.js
@@ -0,0 +1,20 @@
+import { addFormatToken } from '../format/format';
+import { addRegexToken, matchTimestamp, matchSigned } from '../parse/regex';
+import { addParseToken } from '../parse/token';
+import toInt from '../utils/to-int';
+
+// FORMATTING
+
+addFormatToken('X', 0, 0, 'unix');
+addFormatToken('x', 0, 0, 'valueOf');
+
+// PARSING
+
+addRegexToken('x', matchSigned);
+addRegexToken('X', matchTimestamp);
+addParseToken('X', function (input, array, config) {
+    config._d = new Date(parseFloat(input) * 1000);
+});
+addParseToken('x', function (input, array, config) {
+    config._d = new Date(toInt(input));
+});
diff --git a/backend/node_modules/moment/src/lib/units/timezone.js b/backend/node_modules/moment/src/lib/units/timezone.js
new file mode 100644
index 0000000..3831fd3
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/units/timezone.js
@@ -0,0 +1,16 @@
+import { addFormatToken } from '../format/format';
+
+// FORMATTING
+
+addFormatToken('z', 0, 0, 'zoneAbbr');
+addFormatToken('zz', 0, 0, 'zoneName');
+
+// MOMENTS
+
+export function getZoneAbbr() {
+    return this._isUTC ? 'UTC' : '';
+}
+
+export function getZoneName() {
+    return this._isUTC ? 'Coordinated Universal Time' : '';
+}
diff --git a/backend/node_modules/moment/src/lib/units/units.js b/backend/node_modules/moment/src/lib/units/units.js
new file mode 100644
index 0000000..6f45f1c
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/units/units.js
@@ -0,0 +1,20 @@
+// Side effect imports
+import './day-of-month';
+import './day-of-week';
+import './day-of-year';
+import './hour';
+import './millisecond';
+import './minute';
+import './month';
+import './offset';
+import './quarter';
+import './second';
+import './timestamp';
+import './timezone';
+import './week-year';
+import './week';
+import './year';
+
+import { normalizeUnits } from './aliases';
+
+export { normalizeUnits };
diff --git a/backend/node_modules/moment/src/lib/units/week-calendar-utils.js b/backend/node_modules/moment/src/lib/units/week-calendar-utils.js
new file mode 100644
index 0000000..be67184
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/units/week-calendar-utils.js
@@ -0,0 +1,66 @@
+import { daysInYear } from './year';
+import { createUTCDate } from '../create/date-from-array';
+
+// start-of-first-week - start-of-year
+function firstWeekOffset(year, dow, doy) {
+    var // first-week day -- which january is always in the first week (4 for iso, 1 for other)
+        fwd = 7 + dow - doy,
+        // first-week day local weekday -- which local weekday is fwd
+        fwdlw = (7 + createUTCDate(year, 0, fwd).getUTCDay() - dow) % 7;
+
+    return -fwdlw + fwd - 1;
+}
+
+// https://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday
+export function dayOfYearFromWeeks(year, week, weekday, dow, doy) {
+    var localWeekday = (7 + weekday - dow) % 7,
+        weekOffset = firstWeekOffset(year, dow, doy),
+        dayOfYear = 1 + 7 * (week - 1) + localWeekday + weekOffset,
+        resYear,
+        resDayOfYear;
+
+    if (dayOfYear <= 0) {
+        resYear = year - 1;
+        resDayOfYear = daysInYear(resYear) + dayOfYear;
+    } else if (dayOfYear > daysInYear(year)) {
+        resYear = year + 1;
+        resDayOfYear = dayOfYear - daysInYear(year);
+    } else {
+        resYear = year;
+        resDayOfYear = dayOfYear;
+    }
+
+    return {
+        year: resYear,
+        dayOfYear: resDayOfYear,
+    };
+}
+
+export function weekOfYear(mom, dow, doy) {
+    var weekOffset = firstWeekOffset(mom.year(), dow, doy),
+        week = Math.floor((mom.dayOfYear() - weekOffset - 1) / 7) + 1,
+        resWeek,
+        resYear;
+
+    if (week < 1) {
+        resYear = mom.year() - 1;
+        resWeek = week + weeksInYear(resYear, dow, doy);
+    } else if (week > weeksInYear(mom.year(), dow, doy)) {
+        resWeek = week - weeksInYear(mom.year(), dow, doy);
+        resYear = mom.year() + 1;
+    } else {
+        resYear = mom.year();
+        resWeek = week;
+    }
+
+    return {
+        week: resWeek,
+        year: resYear,
+    };
+}
+
+export function weeksInYear(year, dow, doy) {
+    var weekOffset = firstWeekOffset(year, dow, doy),
+        weekOffsetNext = firstWeekOffset(year + 1, dow, doy);
+    return (daysInYear(year) - weekOffset + weekOffsetNext) / 7;
+}
diff --git a/backend/node_modules/moment/src/lib/units/week-year.js b/backend/node_modules/moment/src/lib/units/week-year.js
new file mode 100644
index 0000000..585362c
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/units/week-year.js
@@ -0,0 +1,128 @@
+import { addFormatToken } from '../format/format';
+import {
+    addRegexToken,
+    match1to2,
+    match1to4,
+    match1to6,
+    match2,
+    match4,
+    match6,
+    matchSigned,
+} from '../parse/regex';
+import { addWeekParseToken } from '../parse/token';
+import {
+    weekOfYear,
+    weeksInYear,
+    dayOfYearFromWeeks,
+} from './week-calendar-utils';
+import toInt from '../utils/to-int';
+import { hooks } from '../utils/hooks';
+import { createUTCDate } from '../create/date-from-array';
+
+// FORMATTING
+
+addFormatToken(0, ['gg', 2], 0, function () {
+    return this.weekYear() % 100;
+});
+
+addFormatToken(0, ['GG', 2], 0, function () {
+    return this.isoWeekYear() % 100;
+});
+
+function addWeekYearFormatToken(token, getter) {
+    addFormatToken(0, [token, token.length], 0, getter);
+}
+
+addWeekYearFormatToken('gggg', 'weekYear');
+addWeekYearFormatToken('ggggg', 'weekYear');
+addWeekYearFormatToken('GGGG', 'isoWeekYear');
+addWeekYearFormatToken('GGGGG', 'isoWeekYear');
+
+// ALIASES
+
+// PARSING
+
+addRegexToken('G', matchSigned);
+addRegexToken('g', matchSigned);
+addRegexToken('GG', match1to2, match2);
+addRegexToken('gg', match1to2, match2);
+addRegexToken('GGGG', match1to4, match4);
+addRegexToken('gggg', match1to4, match4);
+addRegexToken('GGGGG', match1to6, match6);
+addRegexToken('ggggg', match1to6, match6);
+
+addWeekParseToken(
+    ['gggg', 'ggggg', 'GGGG', 'GGGGG'],
+    function (input, week, config, token) {
+        week[token.substr(0, 2)] = toInt(input);
+    }
+);
+
+addWeekParseToken(['gg', 'GG'], function (input, week, config, token) {
+    week[token] = hooks.parseTwoDigitYear(input);
+});
+
+// MOMENTS
+
+export function getSetWeekYear(input) {
+    return getSetWeekYearHelper.call(
+        this,
+        input,
+        this.week(),
+        this.weekday() + this.localeData()._week.dow,
+        this.localeData()._week.dow,
+        this.localeData()._week.doy
+    );
+}
+
+export function getSetISOWeekYear(input) {
+    return getSetWeekYearHelper.call(
+        this,
+        input,
+        this.isoWeek(),
+        this.isoWeekday(),
+        1,
+        4
+    );
+}
+
+export function getISOWeeksInYear() {
+    return weeksInYear(this.year(), 1, 4);
+}
+
+export function getISOWeeksInISOWeekYear() {
+    return weeksInYear(this.isoWeekYear(), 1, 4);
+}
+
+export function getWeeksInYear() {
+    var weekInfo = this.localeData()._week;
+    return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy);
+}
+
+export function getWeeksInWeekYear() {
+    var weekInfo = this.localeData()._week;
+    return weeksInYear(this.weekYear(), weekInfo.dow, weekInfo.doy);
+}
+
+function getSetWeekYearHelper(input, week, weekday, dow, doy) {
+    var weeksTarget;
+    if (input == null) {
+        return weekOfYear(this, dow, doy).year;
+    } else {
+        weeksTarget = weeksInYear(input, dow, doy);
+        if (week > weeksTarget) {
+            week = weeksTarget;
+        }
+        return setWeekAll.call(this, input, week, weekday, dow, doy);
+    }
+}
+
+function setWeekAll(weekYear, week, weekday, dow, doy) {
+    var dayOfYearData = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy),
+        date = createUTCDate(dayOfYearData.year, 0, dayOfYearData.dayOfYear);
+
+    this.year(date.getUTCFullYear());
+    this.month(date.getUTCMonth());
+    this.date(date.getUTCDate());
+    return this;
+}
diff --git a/backend/node_modules/moment/src/lib/units/week.js b/backend/node_modules/moment/src/lib/units/week.js
new file mode 100644
index 0000000..2675e56
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/units/week.js
@@ -0,0 +1,62 @@
+import { addFormatToken } from '../format/format';
+import {
+    addRegexToken,
+    match1to2,
+    match2,
+    match1to2NoLeadingZero,
+} from '../parse/regex';
+import { addWeekParseToken } from '../parse/token';
+import toInt from '../utils/to-int';
+import { weekOfYear } from './week-calendar-utils';
+
+// FORMATTING
+
+addFormatToken('w', ['ww', 2], 'wo', 'week');
+addFormatToken('W', ['WW', 2], 'Wo', 'isoWeek');
+
+// PARSING
+
+addRegexToken('w', match1to2, match1to2NoLeadingZero);
+addRegexToken('ww', match1to2, match2);
+addRegexToken('W', match1to2, match1to2NoLeadingZero);
+addRegexToken('WW', match1to2, match2);
+
+addWeekParseToken(
+    ['w', 'ww', 'W', 'WW'],
+    function (input, week, config, token) {
+        week[token.substr(0, 1)] = toInt(input);
+    }
+);
+
+// HELPERS
+
+// LOCALES
+
+export function localeWeek(mom) {
+    return weekOfYear(mom, this._week.dow, this._week.doy).week;
+}
+
+export var defaultLocaleWeek = {
+    dow: 0, // Sunday is the first day of the week.
+    doy: 6, // The week that contains Jan 6th is the first week of the year.
+};
+
+export function localeFirstDayOfWeek() {
+    return this._week.dow;
+}
+
+export function localeFirstDayOfYear() {
+    return this._week.doy;
+}
+
+// MOMENTS
+
+export function getSetWeek(input) {
+    var week = this.localeData().week(this);
+    return input == null ? week : this.add((input - week) * 7, 'd');
+}
+
+export function getSetISOWeek(input) {
+    var week = weekOfYear(this, 1, 4).week;
+    return input == null ? week : this.add((input - week) * 7, 'd');
+}
diff --git a/backend/node_modules/moment/src/lib/units/year.js b/backend/node_modules/moment/src/lib/units/year.js
new file mode 100644
index 0000000..60c38bf
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/units/year.js
@@ -0,0 +1,75 @@
+import { makeGetSet } from '../moment/get-set';
+import { addFormatToken } from '../format/format';
+import {
+    addRegexToken,
+    match1to2,
+    match1to4,
+    match1to6,
+    match2,
+    match4,
+    match6,
+    matchSigned,
+} from '../parse/regex';
+import { addParseToken } from '../parse/token';
+import { isLeapYear } from '../utils/is-leap-year';
+import { hooks } from '../utils/hooks';
+import { YEAR } from './constants';
+import toInt from '../utils/to-int';
+import zeroFill from '../utils/zero-fill';
+
+// FORMATTING
+
+addFormatToken('Y', 0, 0, function () {
+    var y = this.year();
+    return y <= 9999 ? zeroFill(y, 4) : '+' + y;
+});
+
+addFormatToken(0, ['YY', 2], 0, function () {
+    return this.year() % 100;
+});
+
+addFormatToken(0, ['YYYY', 4], 0, 'year');
+addFormatToken(0, ['YYYYY', 5], 0, 'year');
+addFormatToken(0, ['YYYYYY', 6, true], 0, 'year');
+
+// PARSING
+
+addRegexToken('Y', matchSigned);
+addRegexToken('YY', match1to2, match2);
+addRegexToken('YYYY', match1to4, match4);
+addRegexToken('YYYYY', match1to6, match6);
+addRegexToken('YYYYYY', match1to6, match6);
+
+addParseToken(['YYYYY', 'YYYYYY'], YEAR);
+addParseToken('YYYY', function (input, array) {
+    array[YEAR] =
+        input.length === 2 ? hooks.parseTwoDigitYear(input) : toInt(input);
+});
+addParseToken('YY', function (input, array) {
+    array[YEAR] = hooks.parseTwoDigitYear(input);
+});
+addParseToken('Y', function (input, array) {
+    array[YEAR] = parseInt(input, 10);
+});
+
+// HELPERS
+
+export function daysInYear(year) {
+    return isLeapYear(year) ? 366 : 365;
+}
+
+export { isLeapYear };
+
+// HOOKS
+
+hooks.parseTwoDigitYear = function (input) {
+    return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
+};
+
+// MOMENTS
+
+export var getSetYear = makeGetSet('FullYear', true);
+
+export function getIsLeapYear() {
+    return isLeapYear(this.year());
+}
diff --git a/backend/node_modules/moment/src/lib/utils/abs-ceil.js b/backend/node_modules/moment/src/lib/utils/abs-ceil.js
new file mode 100644
index 0000000..e4c7bc2
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/abs-ceil.js
@@ -0,0 +1,7 @@
+export default function absCeil(number) {
+    if (number < 0) {
+        return Math.floor(number);
+    } else {
+        return Math.ceil(number);
+    }
+}
diff --git a/backend/node_modules/moment/src/lib/utils/abs-floor.js b/backend/node_modules/moment/src/lib/utils/abs-floor.js
new file mode 100644
index 0000000..7c2ed24
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/abs-floor.js
@@ -0,0 +1,8 @@
+export default function absFloor(number) {
+    if (number < 0) {
+        // -0 -> 0
+        return Math.ceil(number) || 0;
+    } else {
+        return Math.floor(number);
+    }
+}
diff --git a/backend/node_modules/moment/src/lib/utils/abs-round.js b/backend/node_modules/moment/src/lib/utils/abs-round.js
new file mode 100644
index 0000000..175fea2
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/abs-round.js
@@ -0,0 +1,7 @@
+export default function absRound(number) {
+    if (number < 0) {
+        return Math.round(-1 * number) * -1;
+    } else {
+        return Math.round(number);
+    }
+}
diff --git a/backend/node_modules/moment/src/lib/utils/compare-arrays.js b/backend/node_modules/moment/src/lib/utils/compare-arrays.js
new file mode 100644
index 0000000..3e37b53
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/compare-arrays.js
@@ -0,0 +1,18 @@
+import toInt from './to-int';
+
+// compare two arrays, return the number of differences
+export default function compareArrays(array1, array2, dontConvert) {
+    var len = Math.min(array1.length, array2.length),
+        lengthDiff = Math.abs(array1.length - array2.length),
+        diffs = 0,
+        i;
+    for (i = 0; i < len; i++) {
+        if (
+            (dontConvert && array1[i] !== array2[i]) ||
+            (!dontConvert && toInt(array1[i]) !== toInt(array2[i]))
+        ) {
+            diffs++;
+        }
+    }
+    return diffs + lengthDiff;
+}
diff --git a/backend/node_modules/moment/src/lib/utils/defaults.js b/backend/node_modules/moment/src/lib/utils/defaults.js
new file mode 100644
index 0000000..45c5e87
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/defaults.js
@@ -0,0 +1,10 @@
+// Pick the first defined of two or three arguments.
+export default function defaults(a, b, c) {
+    if (a != null) {
+        return a;
+    }
+    if (b != null) {
+        return b;
+    }
+    return c;
+}
diff --git a/backend/node_modules/moment/src/lib/utils/deprecate.js b/backend/node_modules/moment/src/lib/utils/deprecate.js
new file mode 100644
index 0000000..6f28236
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/deprecate.js
@@ -0,0 +1,69 @@
+import extend from './extend';
+import { hooks } from './hooks';
+import hasOwnProp from './has-own-prop';
+
+function warn(msg) {
+    if (
+        hooks.suppressDeprecationWarnings === false &&
+        typeof console !== 'undefined' &&
+        console.warn
+    ) {
+        console.warn('Deprecation warning: ' + msg);
+    }
+}
+
+export function deprecate(msg, fn) {
+    var firstTime = true;
+
+    return extend(function () {
+        if (hooks.deprecationHandler != null) {
+            hooks.deprecationHandler(null, msg);
+        }
+        if (firstTime) {
+            var args = [],
+                arg,
+                i,
+                key,
+                argLen = arguments.length;
+            for (i = 0; i < argLen; i++) {
+                arg = '';
+                if (typeof arguments[i] === 'object') {
+                    arg += '\n[' + i + '] ';
+                    for (key in arguments[0]) {
+                        if (hasOwnProp(arguments[0], key)) {
+                            arg += key + ': ' + arguments[0][key] + ', ';
+                        }
+                    }
+                    arg = arg.slice(0, -2); // Remove trailing comma and space
+                } else {
+                    arg = arguments[i];
+                }
+                args.push(arg);
+            }
+            warn(
+                msg +
+                    '\nArguments: ' +
+                    Array.prototype.slice.call(args).join('') +
+                    '\n' +
+                    new Error().stack
+            );
+            firstTime = false;
+        }
+        return fn.apply(this, arguments);
+    }, fn);
+}
+
+var deprecations = {};
+
+export function deprecateSimple(name, msg) {
+    if (hooks.deprecationHandler != null) {
+        hooks.deprecationHandler(name, msg);
+    }
+    if (!deprecations[name]) {
+        warn(msg);
+        deprecations[name] = true;
+    }
+}
+
+hooks.suppressDeprecationWarnings = false;
+hooks.deprecationHandler = null;
diff --git a/backend/node_modules/moment/src/lib/utils/extend.js b/backend/node_modules/moment/src/lib/utils/extend.js
new file mode 100644
index 0000000..ba74a0b
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/extend.js
@@ -0,0 +1,19 @@
+import hasOwnProp from './has-own-prop';
+
+export default function extend(a, b) {
+    for (var i in b) {
+        if (hasOwnProp(b, i)) {
+            a[i] = b[i];
+        }
+    }
+
+    if (hasOwnProp(b, 'toString')) {
+        a.toString = b.toString;
+    }
+
+    if (hasOwnProp(b, 'valueOf')) {
+        a.valueOf = b.valueOf;
+    }
+
+    return a;
+}
diff --git a/backend/node_modules/moment/src/lib/utils/has-own-prop.js b/backend/node_modules/moment/src/lib/utils/has-own-prop.js
new file mode 100644
index 0000000..4d2403c
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/has-own-prop.js
@@ -0,0 +1,3 @@
+export default function hasOwnProp(a, b) {
+    return Object.prototype.hasOwnProperty.call(a, b);
+}
diff --git a/backend/node_modules/moment/src/lib/utils/hooks.js b/backend/node_modules/moment/src/lib/utils/hooks.js
new file mode 100644
index 0000000..2e86836
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/hooks.js
@@ -0,0 +1,13 @@
+export { hooks, setHookCallback };
+
+var hookCallback;
+
+function hooks() {
+    return hookCallback.apply(null, arguments);
+}
+
+// This is done to register the method called with moment()
+// without creating circular dependencies.
+function setHookCallback(callback) {
+    hookCallback = callback;
+}
diff --git a/backend/node_modules/moment/src/lib/utils/index-of.js b/backend/node_modules/moment/src/lib/utils/index-of.js
new file mode 100644
index 0000000..92298cf
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/index-of.js
@@ -0,0 +1,18 @@
+var indexOf;
+
+if (Array.prototype.indexOf) {
+    indexOf = Array.prototype.indexOf;
+} else {
+    indexOf = function (o) {
+        // I know
+        var i;
+        for (i = 0; i < this.length; ++i) {
+            if (this[i] === o) {
+                return i;
+            }
+        }
+        return -1;
+    };
+}
+
+export { indexOf as default };
diff --git a/backend/node_modules/moment/src/lib/utils/is-array.js b/backend/node_modules/moment/src/lib/utils/is-array.js
new file mode 100644
index 0000000..d57c875
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/is-array.js
@@ -0,0 +1,6 @@
+export default function isArray(input) {
+    return (
+        input instanceof Array ||
+        Object.prototype.toString.call(input) === '[object Array]'
+    );
+}
diff --git a/backend/node_modules/moment/src/lib/utils/is-calendar-spec.js b/backend/node_modules/moment/src/lib/utils/is-calendar-spec.js
new file mode 100644
index 0000000..e8b6d38
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/is-calendar-spec.js
@@ -0,0 +1,25 @@
+import isObjectEmpty from './is-object-empty';
+import hasOwnProp from './has-own-prop';
+import isObject from './is-object';
+
+export default function isCalendarSpec(input) {
+    var objectTest = isObject(input) && !isObjectEmpty(input),
+        propertyTest = false,
+        properties = [
+            'sameDay',
+            'nextDay',
+            'lastDay',
+            'nextWeek',
+            'lastWeek',
+            'sameElse',
+        ],
+        i,
+        property;
+
+    for (i = 0; i < properties.length; i += 1) {
+        property = properties[i];
+        propertyTest = propertyTest || hasOwnProp(input, property);
+    }
+
+    return objectTest && propertyTest;
+}
diff --git a/backend/node_modules/moment/src/lib/utils/is-date.js b/backend/node_modules/moment/src/lib/utils/is-date.js
new file mode 100644
index 0000000..378924b
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/is-date.js
@@ -0,0 +1,6 @@
+export default function isDate(input) {
+    return (
+        input instanceof Date ||
+        Object.prototype.toString.call(input) === '[object Date]'
+    );
+}
diff --git a/backend/node_modules/moment/src/lib/utils/is-function.js b/backend/node_modules/moment/src/lib/utils/is-function.js
new file mode 100644
index 0000000..4549686
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/is-function.js
@@ -0,0 +1,6 @@
+export default function isFunction(input) {
+    return (
+        (typeof Function !== 'undefined' && input instanceof Function) ||
+        Object.prototype.toString.call(input) === '[object Function]'
+    );
+}
diff --git a/backend/node_modules/moment/src/lib/utils/is-leap-year.js b/backend/node_modules/moment/src/lib/utils/is-leap-year.js
new file mode 100644
index 0000000..e399d93
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/is-leap-year.js
@@ -0,0 +1,3 @@
+export function isLeapYear(year) {
+    return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
+}
diff --git a/backend/node_modules/moment/src/lib/utils/is-moment-input.js b/backend/node_modules/moment/src/lib/utils/is-moment-input.js
new file mode 100644
index 0000000..7543bde
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/is-moment-input.js
@@ -0,0 +1,75 @@
+import isObjectEmpty from './is-object-empty';
+import hasOwnProp from './has-own-prop';
+import isObject from './is-object';
+import isDate from './is-date';
+import isNumber from './is-number';
+import isString from './is-string';
+import { isMoment } from '../moment/constructor';
+import isArray from './is-array';
+
+// type MomentInput = Moment | Date | string | number | (number | string)[] | MomentInputObject | void; // null | undefined
+export function isMomentInput(input) {
+    return (
+        isMoment(input) ||
+        isDate(input) ||
+        isString(input) ||
+        isNumber(input) ||
+        isNumberOrStringArray(input) ||
+        isMomentInputObject(input) ||
+        input === null ||
+        input === undefined
+    );
+}
+
+export function isMomentInputObject(input) {
+    var objectTest = isObject(input) && !isObjectEmpty(input),
+        propertyTest = false,
+        properties = [
+            'years',
+            'year',
+            'y',
+            'months',
+            'month',
+            'M',
+            'days',
+            'day',
+            'd',
+            'dates',
+            'date',
+            'D',
+            'hours',
+            'hour',
+            'h',
+            'minutes',
+            'minute',
+            'm',
+            'seconds',
+            'second',
+            's',
+            'milliseconds',
+            'millisecond',
+            'ms',
+        ],
+        i,
+        property,
+        propertyLen = properties.length;
+
+    for (i = 0; i < propertyLen; i += 1) {
+        property = properties[i];
+        propertyTest = propertyTest || hasOwnProp(input, property);
+    }
+
+    return objectTest && propertyTest;
+}
+
+function isNumberOrStringArray(input) {
+    var arrayTest = isArray(input),
+        dataTypeTest = false;
+    if (arrayTest) {
+        dataTypeTest =
+            input.filter(function (item) {
+                return !isNumber(item) && isString(input);
+            }).length === 0;
+    }
+    return arrayTest && dataTypeTest;
+}
diff --git a/backend/node_modules/moment/src/lib/utils/is-number.js b/backend/node_modules/moment/src/lib/utils/is-number.js
new file mode 100644
index 0000000..4a73753
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/is-number.js
@@ -0,0 +1,6 @@
+export default function isNumber(input) {
+    return (
+        typeof input === 'number' ||
+        Object.prototype.toString.call(input) === '[object Number]'
+    );
+}
diff --git a/backend/node_modules/moment/src/lib/utils/is-object-empty.js b/backend/node_modules/moment/src/lib/utils/is-object-empty.js
new file mode 100644
index 0000000..62f4e69
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/is-object-empty.js
@@ -0,0 +1,15 @@
+import hasOwnProp from './has-own-prop';
+
+export default function isObjectEmpty(obj) {
+    if (Object.getOwnPropertyNames) {
+        return Object.getOwnPropertyNames(obj).length === 0;
+    } else {
+        var k;
+        for (k in obj) {
+            if (hasOwnProp(obj, k)) {
+                return false;
+            }
+        }
+        return true;
+    }
+}
diff --git a/backend/node_modules/moment/src/lib/utils/is-object.js b/backend/node_modules/moment/src/lib/utils/is-object.js
new file mode 100644
index 0000000..a1b2d42
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/is-object.js
@@ -0,0 +1,8 @@
+export default function isObject(input) {
+    // IE8 will treat undefined and null as object if it wasn't for
+    // input != null
+    return (
+        input != null &&
+        Object.prototype.toString.call(input) === '[object Object]'
+    );
+}
diff --git a/backend/node_modules/moment/src/lib/utils/is-string.js b/backend/node_modules/moment/src/lib/utils/is-string.js
new file mode 100644
index 0000000..34b8dcc
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/is-string.js
@@ -0,0 +1,3 @@
+export default function isString(input) {
+    return typeof input === 'string' || input instanceof String;
+}
diff --git a/backend/node_modules/moment/src/lib/utils/is-undefined.js b/backend/node_modules/moment/src/lib/utils/is-undefined.js
new file mode 100644
index 0000000..de57a8b
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/is-undefined.js
@@ -0,0 +1,3 @@
+export default function isUndefined(input) {
+    return input === void 0;
+}
diff --git a/backend/node_modules/moment/src/lib/utils/keys.js b/backend/node_modules/moment/src/lib/utils/keys.js
new file mode 100644
index 0000000..1996e64
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/keys.js
@@ -0,0 +1,20 @@
+import hasOwnProp from './has-own-prop';
+
+var keys;
+
+if (Object.keys) {
+    keys = Object.keys;
+} else {
+    keys = function (obj) {
+        var i,
+            res = [];
+        for (i in obj) {
+            if (hasOwnProp(obj, i)) {
+                res.push(i);
+            }
+        }
+        return res;
+    };
+}
+
+export { keys as default };
diff --git a/backend/node_modules/moment/src/lib/utils/map.js b/backend/node_modules/moment/src/lib/utils/map.js
new file mode 100644
index 0000000..14245fe
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/map.js
@@ -0,0 +1,9 @@
+export default function map(arr, fn) {
+    var res = [],
+        i,
+        arrLen = arr.length;
+    for (i = 0; i < arrLen; ++i) {
+        res.push(fn(arr[i], i));
+    }
+    return res;
+}
diff --git a/backend/node_modules/moment/src/lib/utils/mod.js b/backend/node_modules/moment/src/lib/utils/mod.js
new file mode 100644
index 0000000..8046cda
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/mod.js
@@ -0,0 +1,3 @@
+export default function mod(n, x) {
+    return ((n % x) + x) % x;
+}
diff --git a/backend/node_modules/moment/src/lib/utils/some.js b/backend/node_modules/moment/src/lib/utils/some.js
new file mode 100644
index 0000000..7c0dd39
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/some.js
@@ -0,0 +1,20 @@
+var some;
+if (Array.prototype.some) {
+    some = Array.prototype.some;
+} else {
+    some = function (fun) {
+        var t = Object(this),
+            len = t.length >>> 0,
+            i;
+
+        for (i = 0; i < len; i++) {
+            if (i in t && fun.call(this, t[i], i, t)) {
+                return true;
+            }
+        }
+
+        return false;
+    };
+}
+
+export { some as default };
diff --git a/backend/node_modules/moment/src/lib/utils/to-int.js b/backend/node_modules/moment/src/lib/utils/to-int.js
new file mode 100644
index 0000000..fb48941
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/to-int.js
@@ -0,0 +1,12 @@
+import absFloor from './abs-floor';
+
+export default function toInt(argumentForCoercion) {
+    var coercedNumber = +argumentForCoercion,
+        value = 0;
+
+    if (coercedNumber !== 0 && isFinite(coercedNumber)) {
+        value = absFloor(coercedNumber);
+    }
+
+    return value;
+}
diff --git a/backend/node_modules/moment/src/lib/utils/zero-fill.js b/backend/node_modules/moment/src/lib/utils/zero-fill.js
new file mode 100644
index 0000000..e2d2f6e
--- /dev/null
+++ b/backend/node_modules/moment/src/lib/utils/zero-fill.js
@@ -0,0 +1,10 @@
+export default function zeroFill(number, targetLength, forceSign) {
+    var absNumber = '' + Math.abs(number),
+        zerosToFill = targetLength - absNumber.length,
+        sign = number >= 0;
+    return (
+        (sign ? (forceSign ? '+' : '') : '-') +
+        Math.pow(10, Math.max(0, zerosToFill)).toString().substr(1) +
+        absNumber
+    );
+}
diff --git a/backend/node_modules/moment/src/locale/af.js b/backend/node_modules/moment/src/locale/af.js
new file mode 100644
index 0000000..374d853
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/af.js
@@ -0,0 +1,71 @@
+//! moment.js locale configuration
+//! locale : Afrikaans [af]
+//! author : Werner Mollentze : https://github.com/wernerm
+
+import moment from '../moment';
+
+export default moment.defineLocale('af', {
+    months: 'Januarie_Februarie_Maart_April_Mei_Junie_Julie_Augustus_September_Oktober_November_Desember'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mrt_Apr_Mei_Jun_Jul_Aug_Sep_Okt_Nov_Des'.split('_'),
+    weekdays: 'Sondag_Maandag_Dinsdag_Woensdag_Donderdag_Vrydag_Saterdag'.split(
+        '_'
+    ),
+    weekdaysShort: 'Son_Maa_Din_Woe_Don_Vry_Sat'.split('_'),
+    weekdaysMin: 'So_Ma_Di_Wo_Do_Vr_Sa'.split('_'),
+    meridiemParse: /vm|nm/i,
+    isPM: function (input) {
+        return /^nm$/i.test(input);
+    },
+    meridiem: function (hours, minutes, isLower) {
+        if (hours < 12) {
+            return isLower ? 'vm' : 'VM';
+        } else {
+            return isLower ? 'nm' : 'NM';
+        }
+    },
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Vandag om] LT',
+        nextDay: '[Môre om] LT',
+        nextWeek: 'dddd [om] LT',
+        lastDay: '[Gister om] LT',
+        lastWeek: '[Laas] dddd [om] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'oor %s',
+        past: '%s gelede',
+        s: "'n paar sekondes",
+        ss: '%d sekondes',
+        m: "'n minuut",
+        mm: '%d minute',
+        h: "'n uur",
+        hh: '%d ure',
+        d: "'n dag",
+        dd: '%d dae',
+        M: "'n maand",
+        MM: '%d maande',
+        y: "'n jaar",
+        yy: '%d jaar',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
+    ordinal: function (number) {
+        return (
+            number +
+            (number === 1 || number === 8 || number >= 20 ? 'ste' : 'de')
+        ); // Thanks to Joris Röling : https://github.com/jjupiter
+    },
+    week: {
+        dow: 1, // Maandag is die eerste dag van die week.
+        doy: 4, // Die week wat die 4de Januarie bevat is die eerste week van die jaar.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ar-dz.js b/backend/node_modules/moment/src/locale/ar-dz.js
new file mode 100644
index 0000000..61a41e7
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ar-dz.js
@@ -0,0 +1,156 @@
+//! moment.js locale configuration
+//! locale : Arabic (Algeria) [ar-dz]
+//! author : Amine Roukh: https://github.com/Amine27
+//! author : Abdel Said: https://github.com/abdelsaid
+//! author : Ahmed Elkhatib
+//! author : forabi https://github.com/forabi
+//! author : Noureddine LOUAHEDJ : https://github.com/noureddinem
+
+import moment from '../moment';
+
+var pluralForm = function (n) {
+        return n === 0
+            ? 0
+            : n === 1
+              ? 1
+              : n === 2
+                ? 2
+                : n % 100 >= 3 && n % 100 <= 10
+                  ? 3
+                  : n % 100 >= 11
+                    ? 4
+                    : 5;
+    },
+    plurals = {
+        s: [
+            'أقل من ثانية',
+            'ثانية واحدة',
+            ['ثانيتان', 'ثانيتين'],
+            '%d ثوان',
+            '%d ثانية',
+            '%d ثانية',
+        ],
+        m: [
+            'أقل من دقيقة',
+            'دقيقة واحدة',
+            ['دقيقتان', 'دقيقتين'],
+            '%d دقائق',
+            '%d دقيقة',
+            '%d دقيقة',
+        ],
+        h: [
+            'أقل من ساعة',
+            'ساعة واحدة',
+            ['ساعتان', 'ساعتين'],
+            '%d ساعات',
+            '%d ساعة',
+            '%d ساعة',
+        ],
+        d: [
+            'أقل من يوم',
+            'يوم واحد',
+            ['يومان', 'يومين'],
+            '%d أيام',
+            '%d يومًا',
+            '%d يوم',
+        ],
+        M: [
+            'أقل من شهر',
+            'شهر واحد',
+            ['شهران', 'شهرين'],
+            '%d أشهر',
+            '%d شهرا',
+            '%d شهر',
+        ],
+        y: [
+            'أقل من عام',
+            'عام واحد',
+            ['عامان', 'عامين'],
+            '%d أعوام',
+            '%d عامًا',
+            '%d عام',
+        ],
+    },
+    pluralize = function (u) {
+        return function (number, withoutSuffix, string, isFuture) {
+            var f = pluralForm(number),
+                str = plurals[u][pluralForm(number)];
+            if (f === 2) {
+                str = str[withoutSuffix ? 0 : 1];
+            }
+            return str.replace(/%d/i, number);
+        };
+    },
+    months = [
+        'جانفي',
+        'فيفري',
+        'مارس',
+        'أفريل',
+        'ماي',
+        'جوان',
+        'جويلية',
+        'أوت',
+        'سبتمبر',
+        'أكتوبر',
+        'نوفمبر',
+        'ديسمبر',
+    ];
+
+export default moment.defineLocale('ar-dz', {
+    months: months,
+    monthsShort: months,
+    weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+    weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+    weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'D/\u200FM/\u200FYYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    meridiemParse: /ص|م/,
+    isPM: function (input) {
+        return 'م' === input;
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'ص';
+        } else {
+            return 'م';
+        }
+    },
+    calendar: {
+        sameDay: '[اليوم عند الساعة] LT',
+        nextDay: '[غدًا عند الساعة] LT',
+        nextWeek: 'dddd [عند الساعة] LT',
+        lastDay: '[أمس عند الساعة] LT',
+        lastWeek: 'dddd [عند الساعة] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'بعد %s',
+        past: 'منذ %s',
+        s: pluralize('s'),
+        ss: pluralize('s'),
+        m: pluralize('m'),
+        mm: pluralize('m'),
+        h: pluralize('h'),
+        hh: pluralize('h'),
+        d: pluralize('d'),
+        dd: pluralize('d'),
+        M: pluralize('M'),
+        MM: pluralize('M'),
+        y: pluralize('y'),
+        yy: pluralize('y'),
+    },
+    postformat: function (string) {
+        return string.replace(/,/g, '،');
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ar-kw.js b/backend/node_modules/moment/src/locale/ar-kw.js
new file mode 100644
index 0000000..c2b0f87
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ar-kw.js
@@ -0,0 +1,55 @@
+//! moment.js locale configuration
+//! locale : Arabic (Kuwait) [ar-kw]
+//! author : Nusret Parlak: https://github.com/nusretparlak
+
+import moment from '../moment';
+
+export default moment.defineLocale('ar-kw', {
+    months: 'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split(
+        '_'
+    ),
+    monthsShort:
+        'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split(
+            '_'
+        ),
+    weekdays: 'الأحد_الإتنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+    weekdaysShort: 'احد_اتنين_ثلاثاء_اربعاء_خميس_جمعة_سبت'.split('_'),
+    weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[اليوم على الساعة] LT',
+        nextDay: '[غدا على الساعة] LT',
+        nextWeek: 'dddd [على الساعة] LT',
+        lastDay: '[أمس على الساعة] LT',
+        lastWeek: 'dddd [على الساعة] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'في %s',
+        past: 'منذ %s',
+        s: 'ثوان',
+        ss: '%d ثانية',
+        m: 'دقيقة',
+        mm: '%d دقائق',
+        h: 'ساعة',
+        hh: '%d ساعات',
+        d: 'يوم',
+        dd: '%d أيام',
+        M: 'شهر',
+        MM: '%d أشهر',
+        y: 'سنة',
+        yy: '%d سنوات',
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 12, // The week that contains Jan 12th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ar-ly.js b/backend/node_modules/moment/src/locale/ar-ly.js
new file mode 100644
index 0000000..88d5ef5
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ar-ly.js
@@ -0,0 +1,171 @@
+//! moment.js locale configuration
+//! locale : Arabic (Libya) [ar-ly]
+//! author : Ali Hmer: https://github.com/kikoanis
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '1',
+        2: '2',
+        3: '3',
+        4: '4',
+        5: '5',
+        6: '6',
+        7: '7',
+        8: '8',
+        9: '9',
+        0: '0',
+    },
+    pluralForm = function (n) {
+        return n === 0
+            ? 0
+            : n === 1
+              ? 1
+              : n === 2
+                ? 2
+                : n % 100 >= 3 && n % 100 <= 10
+                  ? 3
+                  : n % 100 >= 11
+                    ? 4
+                    : 5;
+    },
+    plurals = {
+        s: [
+            'أقل من ثانية',
+            'ثانية واحدة',
+            ['ثانيتان', 'ثانيتين'],
+            '%d ثوان',
+            '%d ثانية',
+            '%d ثانية',
+        ],
+        m: [
+            'أقل من دقيقة',
+            'دقيقة واحدة',
+            ['دقيقتان', 'دقيقتين'],
+            '%d دقائق',
+            '%d دقيقة',
+            '%d دقيقة',
+        ],
+        h: [
+            'أقل من ساعة',
+            'ساعة واحدة',
+            ['ساعتان', 'ساعتين'],
+            '%d ساعات',
+            '%d ساعة',
+            '%d ساعة',
+        ],
+        d: [
+            'أقل من يوم',
+            'يوم واحد',
+            ['يومان', 'يومين'],
+            '%d أيام',
+            '%d يومًا',
+            '%d يوم',
+        ],
+        M: [
+            'أقل من شهر',
+            'شهر واحد',
+            ['شهران', 'شهرين'],
+            '%d أشهر',
+            '%d شهرا',
+            '%d شهر',
+        ],
+        y: [
+            'أقل من عام',
+            'عام واحد',
+            ['عامان', 'عامين'],
+            '%d أعوام',
+            '%d عامًا',
+            '%d عام',
+        ],
+    },
+    pluralize = function (u) {
+        return function (number, withoutSuffix, string, isFuture) {
+            var f = pluralForm(number),
+                str = plurals[u][pluralForm(number)];
+            if (f === 2) {
+                str = str[withoutSuffix ? 0 : 1];
+            }
+            return str.replace(/%d/i, number);
+        };
+    },
+    months = [
+        'يناير',
+        'فبراير',
+        'مارس',
+        'أبريل',
+        'مايو',
+        'يونيو',
+        'يوليو',
+        'أغسطس',
+        'سبتمبر',
+        'أكتوبر',
+        'نوفمبر',
+        'ديسمبر',
+    ];
+
+export default moment.defineLocale('ar-ly', {
+    months: months,
+    monthsShort: months,
+    weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+    weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+    weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'D/\u200FM/\u200FYYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    meridiemParse: /ص|م/,
+    isPM: function (input) {
+        return 'م' === input;
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'ص';
+        } else {
+            return 'م';
+        }
+    },
+    calendar: {
+        sameDay: '[اليوم عند الساعة] LT',
+        nextDay: '[غدًا عند الساعة] LT',
+        nextWeek: 'dddd [عند الساعة] LT',
+        lastDay: '[أمس عند الساعة] LT',
+        lastWeek: 'dddd [عند الساعة] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'بعد %s',
+        past: 'منذ %s',
+        s: pluralize('s'),
+        ss: pluralize('s'),
+        m: pluralize('m'),
+        mm: pluralize('m'),
+        h: pluralize('h'),
+        hh: pluralize('h'),
+        d: pluralize('d'),
+        dd: pluralize('d'),
+        M: pluralize('M'),
+        MM: pluralize('M'),
+        y: pluralize('y'),
+        yy: pluralize('y'),
+    },
+    preparse: function (string) {
+        return string.replace(/،/g, ',');
+    },
+    postformat: function (string) {
+        return string
+            .replace(/\d/g, function (match) {
+                return symbolMap[match];
+            })
+            .replace(/,/g, '،');
+    },
+    week: {
+        dow: 6, // Saturday is the first day of the week.
+        doy: 12, // The week that contains Jan 12th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ar-ma.js b/backend/node_modules/moment/src/locale/ar-ma.js
new file mode 100644
index 0000000..4010aa0
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ar-ma.js
@@ -0,0 +1,56 @@
+//! moment.js locale configuration
+//! locale : Arabic (Morocco) [ar-ma]
+//! author : ElFadili Yassine : https://github.com/ElFadiliY
+//! author : Abdel Said : https://github.com/abdelsaid
+
+import moment from '../moment';
+
+export default moment.defineLocale('ar-ma', {
+    months: 'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split(
+        '_'
+    ),
+    monthsShort:
+        'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split(
+            '_'
+        ),
+    weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+    weekdaysShort: 'احد_اثنين_ثلاثاء_اربعاء_خميس_جمعة_سبت'.split('_'),
+    weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[اليوم على الساعة] LT',
+        nextDay: '[غدا على الساعة] LT',
+        nextWeek: 'dddd [على الساعة] LT',
+        lastDay: '[أمس على الساعة] LT',
+        lastWeek: 'dddd [على الساعة] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'في %s',
+        past: 'منذ %s',
+        s: 'ثوان',
+        ss: '%d ثانية',
+        m: 'دقيقة',
+        mm: '%d دقائق',
+        h: 'ساعة',
+        hh: '%d ساعات',
+        d: 'يوم',
+        dd: '%d أيام',
+        M: 'شهر',
+        MM: '%d أشهر',
+        y: 'سنة',
+        yy: '%d سنوات',
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ar-ps.js b/backend/node_modules/moment/src/locale/ar-ps.js
new file mode 100644
index 0000000..143da7d
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ar-ps.js
@@ -0,0 +1,112 @@
+//! moment.js locale configuration
+//! locale : Arabic (Palestine) [ar-ps]
+//! author : Majd Al-Shihabi : https://github.com/majdal
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '١',
+        2: '٢',
+        3: '٣',
+        4: '٤',
+        5: '٥',
+        6: '٦',
+        7: '٧',
+        8: '٨',
+        9: '٩',
+        0: '٠',
+    },
+    numberMap = {
+        '١': '1',
+        '٢': '2',
+        '٣': '3',
+        '٤': '4',
+        '٥': '5',
+        '٦': '6',
+        '٧': '7',
+        '٨': '8',
+        '٩': '9',
+        '٠': '0',
+    };
+
+export default moment.defineLocale('ar-ps', {
+    months: 'كانون الثاني_شباط_آذار_نيسان_أيّار_حزيران_تمّوز_آب_أيلول_تشري الأوّل_تشرين الثاني_كانون الأوّل'.split(
+        '_'
+    ),
+    monthsShort:
+        'ك٢_شباط_آذار_نيسان_أيّار_حزيران_تمّوز_آب_أيلول_ت١_ت٢_ك١'.split('_'),
+    weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+    weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+    weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    meridiemParse: /ص|م/,
+    isPM: function (input) {
+        return 'م' === input;
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'ص';
+        } else {
+            return 'م';
+        }
+    },
+    calendar: {
+        sameDay: '[اليوم على الساعة] LT',
+        nextDay: '[غدا على الساعة] LT',
+        nextWeek: 'dddd [على الساعة] LT',
+        lastDay: '[أمس على الساعة] LT',
+        lastWeek: 'dddd [على الساعة] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'في %s',
+        past: 'منذ %s',
+        s: 'ثوان',
+        ss: '%d ثانية',
+        m: 'دقيقة',
+        mm: '%d دقائق',
+        h: 'ساعة',
+        hh: '%d ساعات',
+        d: 'يوم',
+        dd: '%d أيام',
+        M: 'شهر',
+        MM: '%d أشهر',
+        y: 'سنة',
+        yy: '%d سنوات',
+    },
+    preparse: function (string) {
+        return string
+            .replace(/[٣٤٥٦٧٨٩٠]/g, function (match) {
+                return numberMap[match];
+            })
+            .split('') // reversed since negative lookbehind not supported everywhere
+            .reverse()
+            .join('')
+            .replace(/[١٢](?![\u062a\u0643])/g, function (match) {
+                return numberMap[match];
+            })
+            .split('')
+            .reverse()
+            .join('')
+            .replace(/،/g, ',');
+    },
+    postformat: function (string) {
+        return string
+            .replace(/\d/g, function (match) {
+                return symbolMap[match];
+            })
+            .replace(/,/g, '،');
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ar-sa.js b/backend/node_modules/moment/src/locale/ar-sa.js
new file mode 100644
index 0000000..4505ea1
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ar-sa.js
@@ -0,0 +1,105 @@
+//! moment.js locale configuration
+//! locale : Arabic (Saudi Arabia) [ar-sa]
+//! author : Suhail Alkowaileet : https://github.com/xsoh
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '١',
+        2: '٢',
+        3: '٣',
+        4: '٤',
+        5: '٥',
+        6: '٦',
+        7: '٧',
+        8: '٨',
+        9: '٩',
+        0: '٠',
+    },
+    numberMap = {
+        '١': '1',
+        '٢': '2',
+        '٣': '3',
+        '٤': '4',
+        '٥': '5',
+        '٦': '6',
+        '٧': '7',
+        '٨': '8',
+        '٩': '9',
+        '٠': '0',
+    };
+
+export default moment.defineLocale('ar-sa', {
+    months: 'يناير_فبراير_مارس_أبريل_مايو_يونيو_يوليو_أغسطس_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split(
+        '_'
+    ),
+    monthsShort:
+        'يناير_فبراير_مارس_أبريل_مايو_يونيو_يوليو_أغسطس_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split(
+            '_'
+        ),
+    weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+    weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+    weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    meridiemParse: /ص|م/,
+    isPM: function (input) {
+        return 'م' === input;
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'ص';
+        } else {
+            return 'م';
+        }
+    },
+    calendar: {
+        sameDay: '[اليوم على الساعة] LT',
+        nextDay: '[غدا على الساعة] LT',
+        nextWeek: 'dddd [على الساعة] LT',
+        lastDay: '[أمس على الساعة] LT',
+        lastWeek: 'dddd [على الساعة] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'في %s',
+        past: 'منذ %s',
+        s: 'ثوان',
+        ss: '%d ثانية',
+        m: 'دقيقة',
+        mm: '%d دقائق',
+        h: 'ساعة',
+        hh: '%d ساعات',
+        d: 'يوم',
+        dd: '%d أيام',
+        M: 'شهر',
+        MM: '%d أشهر',
+        y: 'سنة',
+        yy: '%d سنوات',
+    },
+    preparse: function (string) {
+        return string
+            .replace(/[١٢٣٤٥٦٧٨٩٠]/g, function (match) {
+                return numberMap[match];
+            })
+            .replace(/،/g, ',');
+    },
+    postformat: function (string) {
+        return string
+            .replace(/\d/g, function (match) {
+                return symbolMap[match];
+            })
+            .replace(/,/g, '،');
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ar-tn.js b/backend/node_modules/moment/src/locale/ar-tn.js
new file mode 100644
index 0000000..0f416ae
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ar-tn.js
@@ -0,0 +1,55 @@
+//! moment.js locale configuration
+//! locale  :  Arabic (Tunisia) [ar-tn]
+//! author : Nader Toukabri : https://github.com/naderio
+
+import moment from '../moment';
+
+export default moment.defineLocale('ar-tn', {
+    months: 'جانفي_فيفري_مارس_أفريل_ماي_جوان_جويلية_أوت_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split(
+        '_'
+    ),
+    monthsShort:
+        'جانفي_فيفري_مارس_أفريل_ماي_جوان_جويلية_أوت_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split(
+            '_'
+        ),
+    weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+    weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+    weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[اليوم على الساعة] LT',
+        nextDay: '[غدا على الساعة] LT',
+        nextWeek: 'dddd [على الساعة] LT',
+        lastDay: '[أمس على الساعة] LT',
+        lastWeek: 'dddd [على الساعة] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'في %s',
+        past: 'منذ %s',
+        s: 'ثوان',
+        ss: '%d ثانية',
+        m: 'دقيقة',
+        mm: '%d دقائق',
+        h: 'ساعة',
+        hh: '%d ساعات',
+        d: 'يوم',
+        dd: '%d أيام',
+        M: 'شهر',
+        MM: '%d أشهر',
+        y: 'سنة',
+        yy: '%d سنوات',
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ar.js b/backend/node_modules/moment/src/locale/ar.js
new file mode 100644
index 0000000..846e491
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ar.js
@@ -0,0 +1,189 @@
+//! moment.js locale configuration
+//! locale : Arabic [ar]
+//! author : Abdel Said: https://github.com/abdelsaid
+//! author : Ahmed Elkhatib
+//! author : forabi https://github.com/forabi
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '١',
+        2: '٢',
+        3: '٣',
+        4: '٤',
+        5: '٥',
+        6: '٦',
+        7: '٧',
+        8: '٨',
+        9: '٩',
+        0: '٠',
+    },
+    numberMap = {
+        '١': '1',
+        '٢': '2',
+        '٣': '3',
+        '٤': '4',
+        '٥': '5',
+        '٦': '6',
+        '٧': '7',
+        '٨': '8',
+        '٩': '9',
+        '٠': '0',
+    },
+    pluralForm = function (n) {
+        return n === 0
+            ? 0
+            : n === 1
+              ? 1
+              : n === 2
+                ? 2
+                : n % 100 >= 3 && n % 100 <= 10
+                  ? 3
+                  : n % 100 >= 11
+                    ? 4
+                    : 5;
+    },
+    plurals = {
+        s: [
+            'أقل من ثانية',
+            'ثانية واحدة',
+            ['ثانيتان', 'ثانيتين'],
+            '%d ثوان',
+            '%d ثانية',
+            '%d ثانية',
+        ],
+        m: [
+            'أقل من دقيقة',
+            'دقيقة واحدة',
+            ['دقيقتان', 'دقيقتين'],
+            '%d دقائق',
+            '%d دقيقة',
+            '%d دقيقة',
+        ],
+        h: [
+            'أقل من ساعة',
+            'ساعة واحدة',
+            ['ساعتان', 'ساعتين'],
+            '%d ساعات',
+            '%d ساعة',
+            '%d ساعة',
+        ],
+        d: [
+            'أقل من يوم',
+            'يوم واحد',
+            ['يومان', 'يومين'],
+            '%d أيام',
+            '%d يومًا',
+            '%d يوم',
+        ],
+        M: [
+            'أقل من شهر',
+            'شهر واحد',
+            ['شهران', 'شهرين'],
+            '%d أشهر',
+            '%d شهرا',
+            '%d شهر',
+        ],
+        y: [
+            'أقل من عام',
+            'عام واحد',
+            ['عامان', 'عامين'],
+            '%d أعوام',
+            '%d عامًا',
+            '%d عام',
+        ],
+    },
+    pluralize = function (u) {
+        return function (number, withoutSuffix, string, isFuture) {
+            var f = pluralForm(number),
+                str = plurals[u][pluralForm(number)];
+            if (f === 2) {
+                str = str[withoutSuffix ? 0 : 1];
+            }
+            return str.replace(/%d/i, number);
+        };
+    },
+    months = [
+        'يناير',
+        'فبراير',
+        'مارس',
+        'أبريل',
+        'مايو',
+        'يونيو',
+        'يوليو',
+        'أغسطس',
+        'سبتمبر',
+        'أكتوبر',
+        'نوفمبر',
+        'ديسمبر',
+    ];
+
+export default moment.defineLocale('ar', {
+    months: months,
+    monthsShort: months,
+    weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+    weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+    weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'D/\u200FM/\u200FYYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    meridiemParse: /ص|م/,
+    isPM: function (input) {
+        return 'م' === input;
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'ص';
+        } else {
+            return 'م';
+        }
+    },
+    calendar: {
+        sameDay: '[اليوم عند الساعة] LT',
+        nextDay: '[غدًا عند الساعة] LT',
+        nextWeek: 'dddd [عند الساعة] LT',
+        lastDay: '[أمس عند الساعة] LT',
+        lastWeek: 'dddd [عند الساعة] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'بعد %s',
+        past: 'منذ %s',
+        s: pluralize('s'),
+        ss: pluralize('s'),
+        m: pluralize('m'),
+        mm: pluralize('m'),
+        h: pluralize('h'),
+        hh: pluralize('h'),
+        d: pluralize('d'),
+        dd: pluralize('d'),
+        M: pluralize('M'),
+        MM: pluralize('M'),
+        y: pluralize('y'),
+        yy: pluralize('y'),
+    },
+    preparse: function (string) {
+        return string
+            .replace(/[١٢٣٤٥٦٧٨٩٠]/g, function (match) {
+                return numberMap[match];
+            })
+            .replace(/،/g, ',');
+    },
+    postformat: function (string) {
+        return string
+            .replace(/\d/g, function (match) {
+                return symbolMap[match];
+            })
+            .replace(/,/g, '،');
+    },
+    week: {
+        dow: 6, // Saturday is the first day of the week.
+        doy: 12, // The week that contains Jan 12th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/az.js b/backend/node_modules/moment/src/locale/az.js
new file mode 100644
index 0000000..2e06aa1
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/az.js
@@ -0,0 +1,102 @@
+//! moment.js locale configuration
+//! locale : Azerbaijani [az]
+//! author : topchiyev : https://github.com/topchiyev
+
+import moment from '../moment';
+
+var suffixes = {
+    1: '-inci',
+    5: '-inci',
+    8: '-inci',
+    70: '-inci',
+    80: '-inci',
+    2: '-nci',
+    7: '-nci',
+    20: '-nci',
+    50: '-nci',
+    3: '-üncü',
+    4: '-üncü',
+    100: '-üncü',
+    6: '-ncı',
+    9: '-uncu',
+    10: '-uncu',
+    30: '-uncu',
+    60: '-ıncı',
+    90: '-ıncı',
+};
+
+export default moment.defineLocale('az', {
+    months: 'yanvar_fevral_mart_aprel_may_iyun_iyul_avqust_sentyabr_oktyabr_noyabr_dekabr'.split(
+        '_'
+    ),
+    monthsShort: 'yan_fev_mar_apr_may_iyn_iyl_avq_sen_okt_noy_dek'.split('_'),
+    weekdays:
+        'Bazar_Bazar ertəsi_Çərşənbə axşamı_Çərşənbə_Cümə axşamı_Cümə_Şənbə'.split(
+            '_'
+        ),
+    weekdaysShort: 'Baz_BzE_ÇAx_Çər_CAx_Cüm_Şən'.split('_'),
+    weekdaysMin: 'Bz_BE_ÇA_Çə_CA_Cü_Şə'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[bugün saat] LT',
+        nextDay: '[sabah saat] LT',
+        nextWeek: '[gələn həftə] dddd [saat] LT',
+        lastDay: '[dünən] LT',
+        lastWeek: '[keçən həftə] dddd [saat] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s sonra',
+        past: '%s əvvəl',
+        s: 'bir neçə saniyə',
+        ss: '%d saniyə',
+        m: 'bir dəqiqə',
+        mm: '%d dəqiqə',
+        h: 'bir saat',
+        hh: '%d saat',
+        d: 'bir gün',
+        dd: '%d gün',
+        M: 'bir ay',
+        MM: '%d ay',
+        y: 'bir il',
+        yy: '%d il',
+    },
+    meridiemParse: /gecə|səhər|gündüz|axşam/,
+    isPM: function (input) {
+        return /^(gündüz|axşam)$/.test(input);
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'gecə';
+        } else if (hour < 12) {
+            return 'səhər';
+        } else if (hour < 17) {
+            return 'gündüz';
+        } else {
+            return 'axşam';
+        }
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}-(ıncı|inci|nci|üncü|ncı|uncu)/,
+    ordinal: function (number) {
+        if (number === 0) {
+            // special case for zero
+            return number + '-ıncı';
+        }
+        var a = number % 10,
+            b = (number % 100) - a,
+            c = number >= 100 ? 100 : null;
+        return number + (suffixes[a] || suffixes[b] || suffixes[c]);
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/be.js b/backend/node_modules/moment/src/locale/be.js
new file mode 100644
index 0000000..39e97a2
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/be.js
@@ -0,0 +1,142 @@
+//! moment.js locale configuration
+//! locale : Belarusian [be]
+//! author : Dmitry Demidov : https://github.com/demidov91
+//! author: Praleska: http://praleska.pro/
+//! Author : Menelion Elensúle : https://github.com/Oire
+
+import moment from '../moment';
+
+function plural(word, num) {
+    var forms = word.split('_');
+    return num % 10 === 1 && num % 100 !== 11
+        ? forms[0]
+        : num % 10 >= 2 && num % 10 <= 4 && (num % 100 < 10 || num % 100 >= 20)
+          ? forms[1]
+          : forms[2];
+}
+function relativeTimeWithPlural(number, withoutSuffix, key) {
+    var format = {
+        ss: withoutSuffix ? 'секунда_секунды_секунд' : 'секунду_секунды_секунд',
+        mm: withoutSuffix ? 'хвіліна_хвіліны_хвілін' : 'хвіліну_хвіліны_хвілін',
+        hh: withoutSuffix ? 'гадзіна_гадзіны_гадзін' : 'гадзіну_гадзіны_гадзін',
+        dd: 'дзень_дні_дзён',
+        MM: 'месяц_месяцы_месяцаў',
+        yy: 'год_гады_гадоў',
+    };
+    if (key === 'm') {
+        return withoutSuffix ? 'хвіліна' : 'хвіліну';
+    } else if (key === 'h') {
+        return withoutSuffix ? 'гадзіна' : 'гадзіну';
+    } else {
+        return number + ' ' + plural(format[key], +number);
+    }
+}
+
+export default moment.defineLocale('be', {
+    months: {
+        format: 'студзеня_лютага_сакавіка_красавіка_траўня_чэрвеня_ліпеня_жніўня_верасня_кастрычніка_лістапада_снежня'.split(
+            '_'
+        ),
+        standalone:
+            'студзень_люты_сакавік_красавік_травень_чэрвень_ліпень_жнівень_верасень_кастрычнік_лістапад_снежань'.split(
+                '_'
+            ),
+    },
+    monthsShort:
+        'студ_лют_сак_крас_трав_чэрв_ліп_жнів_вер_каст_ліст_снеж'.split('_'),
+    weekdays: {
+        format: 'нядзелю_панядзелак_аўторак_сераду_чацвер_пятніцу_суботу'.split(
+            '_'
+        ),
+        standalone:
+            'нядзеля_панядзелак_аўторак_серада_чацвер_пятніца_субота'.split(
+                '_'
+            ),
+        isFormat: /\[ ?[Ууў] ?(?:мінулую|наступную)? ?\] ?dddd/,
+    },
+    weekdaysShort: 'нд_пн_ат_ср_чц_пт_сб'.split('_'),
+    weekdaysMin: 'нд_пн_ат_ср_чц_пт_сб'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY г.',
+        LLL: 'D MMMM YYYY г., HH:mm',
+        LLLL: 'dddd, D MMMM YYYY г., HH:mm',
+    },
+    calendar: {
+        sameDay: '[Сёння ў] LT',
+        nextDay: '[Заўтра ў] LT',
+        lastDay: '[Учора ў] LT',
+        nextWeek: function () {
+            return '[У] dddd [ў] LT';
+        },
+        lastWeek: function () {
+            switch (this.day()) {
+                case 0:
+                case 3:
+                case 5:
+                case 6:
+                    return '[У мінулую] dddd [ў] LT';
+                case 1:
+                case 2:
+                case 4:
+                    return '[У мінулы] dddd [ў] LT';
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'праз %s',
+        past: '%s таму',
+        s: 'некалькі секунд',
+        m: relativeTimeWithPlural,
+        mm: relativeTimeWithPlural,
+        h: relativeTimeWithPlural,
+        hh: relativeTimeWithPlural,
+        d: 'дзень',
+        dd: relativeTimeWithPlural,
+        M: 'месяц',
+        MM: relativeTimeWithPlural,
+        y: 'год',
+        yy: relativeTimeWithPlural,
+    },
+    meridiemParse: /ночы|раніцы|дня|вечара/,
+    isPM: function (input) {
+        return /^(дня|вечара)$/.test(input);
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'ночы';
+        } else if (hour < 12) {
+            return 'раніцы';
+        } else if (hour < 17) {
+            return 'дня';
+        } else {
+            return 'вечара';
+        }
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}-(і|ы|га)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'M':
+            case 'd':
+            case 'DDD':
+            case 'w':
+            case 'W':
+                return (number % 10 === 2 || number % 10 === 3) &&
+                    number % 100 !== 12 &&
+                    number % 100 !== 13
+                    ? number + '-і'
+                    : number + '-ы';
+            case 'D':
+                return number + '-га';
+            default:
+                return number;
+        }
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/bg.js b/backend/node_modules/moment/src/locale/bg.js
new file mode 100644
index 0000000..e8b060f
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/bg.js
@@ -0,0 +1,87 @@
+//! moment.js locale configuration
+//! locale : Bulgarian [bg]
+//! author : Krasen Borisov : https://github.com/kraz
+
+import moment from '../moment';
+
+export default moment.defineLocale('bg', {
+    months: 'януари_февруари_март_април_май_юни_юли_август_септември_октомври_ноември_декември'.split(
+        '_'
+    ),
+    monthsShort: 'яну_фев_мар_апр_май_юни_юли_авг_сеп_окт_ное_дек'.split('_'),
+    weekdays: 'неделя_понеделник_вторник_сряда_четвъртък_петък_събота'.split(
+        '_'
+    ),
+    weekdaysShort: 'нед_пон_вто_сря_чет_пет_съб'.split('_'),
+    weekdaysMin: 'нд_пн_вт_ср_чт_пт_сб'.split('_'),
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'D.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY H:mm',
+        LLLL: 'dddd, D MMMM YYYY H:mm',
+    },
+    calendar: {
+        sameDay: '[Днес в] LT',
+        nextDay: '[Утре в] LT',
+        nextWeek: 'dddd [в] LT',
+        lastDay: '[Вчера в] LT',
+        lastWeek: function () {
+            switch (this.day()) {
+                case 0:
+                case 3:
+                case 6:
+                    return '[Миналата] dddd [в] LT';
+                case 1:
+                case 2:
+                case 4:
+                case 5:
+                    return '[Миналия] dddd [в] LT';
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'след %s',
+        past: 'преди %s',
+        s: 'няколко секунди',
+        ss: '%d секунди',
+        m: 'минута',
+        mm: '%d минути',
+        h: 'час',
+        hh: '%d часа',
+        d: 'ден',
+        dd: '%d дена',
+        w: 'седмица',
+        ww: '%d седмици',
+        M: 'месец',
+        MM: '%d месеца',
+        y: 'година',
+        yy: '%d години',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}-(ев|ен|ти|ви|ри|ми)/,
+    ordinal: function (number) {
+        var lastDigit = number % 10,
+            last2Digits = number % 100;
+        if (number === 0) {
+            return number + '-ев';
+        } else if (last2Digits === 0) {
+            return number + '-ен';
+        } else if (last2Digits > 10 && last2Digits < 20) {
+            return number + '-ти';
+        } else if (lastDigit === 1) {
+            return number + '-ви';
+        } else if (lastDigit === 2) {
+            return number + '-ри';
+        } else if (lastDigit === 7 || lastDigit === 8) {
+            return number + '-ми';
+        } else {
+            return number + '-ти';
+        }
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/bm.js b/backend/node_modules/moment/src/locale/bm.js
new file mode 100644
index 0000000..037d018
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/bm.js
@@ -0,0 +1,52 @@
+//! moment.js locale configuration
+//! locale : Bambara [bm]
+//! author : Estelle Comment : https://github.com/estellecomment
+// Language contact person : Abdoufata Kane : https://github.com/abdoufata
+
+import moment from '../moment';
+
+export default moment.defineLocale('bm', {
+    months: 'Zanwuyekalo_Fewuruyekalo_Marisikalo_Awirilikalo_Mɛkalo_Zuwɛnkalo_Zuluyekalo_Utikalo_Sɛtanburukalo_ɔkutɔburukalo_Nowanburukalo_Desanburukalo'.split(
+        '_'
+    ),
+    monthsShort: 'Zan_Few_Mar_Awi_Mɛ_Zuw_Zul_Uti_Sɛt_ɔku_Now_Des'.split('_'),
+    weekdays: 'Kari_Ntɛnɛn_Tarata_Araba_Alamisa_Juma_Sibiri'.split('_'),
+    weekdaysShort: 'Kar_Ntɛ_Tar_Ara_Ala_Jum_Sib'.split('_'),
+    weekdaysMin: 'Ka_Nt_Ta_Ar_Al_Ju_Si'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'MMMM [tile] D [san] YYYY',
+        LLL: 'MMMM [tile] D [san] YYYY [lɛrɛ] HH:mm',
+        LLLL: 'dddd MMMM [tile] D [san] YYYY [lɛrɛ] HH:mm',
+    },
+    calendar: {
+        sameDay: '[Bi lɛrɛ] LT',
+        nextDay: '[Sini lɛrɛ] LT',
+        nextWeek: 'dddd [don lɛrɛ] LT',
+        lastDay: '[Kunu lɛrɛ] LT',
+        lastWeek: 'dddd [tɛmɛnen lɛrɛ] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s kɔnɔ',
+        past: 'a bɛ %s bɔ',
+        s: 'sanga dama dama',
+        ss: 'sekondi %d',
+        m: 'miniti kelen',
+        mm: 'miniti %d',
+        h: 'lɛrɛ kelen',
+        hh: 'lɛrɛ %d',
+        d: 'tile kelen',
+        dd: 'tile %d',
+        M: 'kalo kelen',
+        MM: 'kalo %d',
+        y: 'san kelen',
+        yy: 'san %d',
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/bn-bd.js b/backend/node_modules/moment/src/locale/bn-bd.js
new file mode 100644
index 0000000..054f44f
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/bn-bd.js
@@ -0,0 +1,129 @@
+//! moment.js locale configuration
+//! locale : Bengali (Bangladesh) [bn-bd]
+//! author : Asraf Hossain Patoary : https://github.com/ashwoolford
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '১',
+        2: '২',
+        3: '৩',
+        4: '৪',
+        5: '৫',
+        6: '৬',
+        7: '৭',
+        8: '৮',
+        9: '৯',
+        0: '০',
+    },
+    numberMap = {
+        '১': '1',
+        '২': '2',
+        '৩': '3',
+        '৪': '4',
+        '৫': '5',
+        '৬': '6',
+        '৭': '7',
+        '৮': '8',
+        '৯': '9',
+        '০': '0',
+    };
+
+export default moment.defineLocale('bn-bd', {
+    months: 'জানুয়ারি_ফেব্রুয়ারি_মার্চ_এপ্রিল_মে_জুন_জুলাই_আগস্ট_সেপ্টেম্বর_অক্টোবর_নভেম্বর_ডিসেম্বর'.split(
+        '_'
+    ),
+    monthsShort:
+        'জানু_ফেব্রু_মার্চ_এপ্রিল_মে_জুন_জুলাই_আগস্ট_সেপ্ট_অক্টো_নভে_ডিসে'.split(
+            '_'
+        ),
+    weekdays: 'রবিবার_সোমবার_মঙ্গলবার_বুধবার_বৃহস্পতিবার_শুক্রবার_শনিবার'.split(
+        '_'
+    ),
+    weekdaysShort: 'রবি_সোম_মঙ্গল_বুধ_বৃহস্পতি_শুক্র_শনি'.split('_'),
+    weekdaysMin: 'রবি_সোম_মঙ্গল_বুধ_বৃহ_শুক্র_শনি'.split('_'),
+    longDateFormat: {
+        LT: 'A h:mm সময়',
+        LTS: 'A h:mm:ss সময়',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY, A h:mm সময়',
+        LLLL: 'dddd, D MMMM YYYY, A h:mm সময়',
+    },
+    calendar: {
+        sameDay: '[আজ] LT',
+        nextDay: '[আগামীকাল] LT',
+        nextWeek: 'dddd, LT',
+        lastDay: '[গতকাল] LT',
+        lastWeek: '[গত] dddd, LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s পরে',
+        past: '%s আগে',
+        s: 'কয়েক সেকেন্ড',
+        ss: '%d সেকেন্ড',
+        m: 'এক মিনিট',
+        mm: '%d মিনিট',
+        h: 'এক ঘন্টা',
+        hh: '%d ঘন্টা',
+        d: 'এক দিন',
+        dd: '%d দিন',
+        M: 'এক মাস',
+        MM: '%d মাস',
+        y: 'এক বছর',
+        yy: '%d বছর',
+    },
+    preparse: function (string) {
+        return string.replace(/[১২৩৪৫৬৭৮৯০]/g, function (match) {
+            return numberMap[match];
+        });
+    },
+    postformat: function (string) {
+        return string.replace(/\d/g, function (match) {
+            return symbolMap[match];
+        });
+    },
+
+    meridiemParse: /রাত|ভোর|সকাল|দুপুর|বিকাল|সন্ধ্যা|রাত/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'রাত') {
+            return hour < 4 ? hour : hour + 12;
+        } else if (meridiem === 'ভোর') {
+            return hour;
+        } else if (meridiem === 'সকাল') {
+            return hour;
+        } else if (meridiem === 'দুপুর') {
+            return hour >= 3 ? hour : hour + 12;
+        } else if (meridiem === 'বিকাল') {
+            return hour + 12;
+        } else if (meridiem === 'সন্ধ্যা') {
+            return hour + 12;
+        }
+    },
+
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'রাত';
+        } else if (hour < 6) {
+            return 'ভোর';
+        } else if (hour < 12) {
+            return 'সকাল';
+        } else if (hour < 15) {
+            return 'দুপুর';
+        } else if (hour < 18) {
+            return 'বিকাল';
+        } else if (hour < 20) {
+            return 'সন্ধ্যা';
+        } else {
+            return 'রাত';
+        }
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/bn.js b/backend/node_modules/moment/src/locale/bn.js
new file mode 100644
index 0000000..14ba050
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/bn.js
@@ -0,0 +1,119 @@
+//! moment.js locale configuration
+//! locale : Bengali [bn]
+//! author : Kaushik Gandhi : https://github.com/kaushikgandhi
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '১',
+        2: '২',
+        3: '৩',
+        4: '৪',
+        5: '৫',
+        6: '৬',
+        7: '৭',
+        8: '৮',
+        9: '৯',
+        0: '০',
+    },
+    numberMap = {
+        '১': '1',
+        '২': '2',
+        '৩': '3',
+        '৪': '4',
+        '৫': '5',
+        '৬': '6',
+        '৭': '7',
+        '৮': '8',
+        '৯': '9',
+        '০': '0',
+    };
+
+export default moment.defineLocale('bn', {
+    months: 'জানুয়ারি_ফেব্রুয়ারি_মার্চ_এপ্রিল_মে_জুন_জুলাই_আগস্ট_সেপ্টেম্বর_অক্টোবর_নভেম্বর_ডিসেম্বর'.split(
+        '_'
+    ),
+    monthsShort:
+        'জানু_ফেব্রু_মার্চ_এপ্রিল_মে_জুন_জুলাই_আগস্ট_সেপ্ট_অক্টো_নভে_ডিসে'.split(
+            '_'
+        ),
+    weekdays: 'রবিবার_সোমবার_মঙ্গলবার_বুধবার_বৃহস্পতিবার_শুক্রবার_শনিবার'.split(
+        '_'
+    ),
+    weekdaysShort: 'রবি_সোম_মঙ্গল_বুধ_বৃহস্পতি_শুক্র_শনি'.split('_'),
+    weekdaysMin: 'রবি_সোম_মঙ্গল_বুধ_বৃহ_শুক্র_শনি'.split('_'),
+    longDateFormat: {
+        LT: 'A h:mm সময়',
+        LTS: 'A h:mm:ss সময়',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY, A h:mm সময়',
+        LLLL: 'dddd, D MMMM YYYY, A h:mm সময়',
+    },
+    calendar: {
+        sameDay: '[আজ] LT',
+        nextDay: '[আগামীকাল] LT',
+        nextWeek: 'dddd, LT',
+        lastDay: '[গতকাল] LT',
+        lastWeek: '[গত] dddd, LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s পরে',
+        past: '%s আগে',
+        s: 'কয়েক সেকেন্ড',
+        ss: '%d সেকেন্ড',
+        m: 'এক মিনিট',
+        mm: '%d মিনিট',
+        h: 'এক ঘন্টা',
+        hh: '%d ঘন্টা',
+        d: 'এক দিন',
+        dd: '%d দিন',
+        M: 'এক মাস',
+        MM: '%d মাস',
+        y: 'এক বছর',
+        yy: '%d বছর',
+    },
+    preparse: function (string) {
+        return string.replace(/[১২৩৪৫৬৭৮৯০]/g, function (match) {
+            return numberMap[match];
+        });
+    },
+    postformat: function (string) {
+        return string.replace(/\d/g, function (match) {
+            return symbolMap[match];
+        });
+    },
+    meridiemParse: /রাত|সকাল|দুপুর|বিকাল|রাত/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (
+            (meridiem === 'রাত' && hour >= 4) ||
+            (meridiem === 'দুপুর' && hour < 5) ||
+            meridiem === 'বিকাল'
+        ) {
+            return hour + 12;
+        } else {
+            return hour;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'রাত';
+        } else if (hour < 10) {
+            return 'সকাল';
+        } else if (hour < 17) {
+            return 'দুপুর';
+        } else if (hour < 20) {
+            return 'বিকাল';
+        } else {
+            return 'রাত';
+        }
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/bo.js b/backend/node_modules/moment/src/locale/bo.js
new file mode 100644
index 0000000..4fbca2e
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/bo.js
@@ -0,0 +1,124 @@
+//! moment.js locale configuration
+//! locale : Tibetan [bo]
+//! author : Thupten N. Chakrishar : https://github.com/vajradog
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '༡',
+        2: '༢',
+        3: '༣',
+        4: '༤',
+        5: '༥',
+        6: '༦',
+        7: '༧',
+        8: '༨',
+        9: '༩',
+        0: '༠',
+    },
+    numberMap = {
+        '༡': '1',
+        '༢': '2',
+        '༣': '3',
+        '༤': '4',
+        '༥': '5',
+        '༦': '6',
+        '༧': '7',
+        '༨': '8',
+        '༩': '9',
+        '༠': '0',
+    };
+
+export default moment.defineLocale('bo', {
+    months: 'ཟླ་བ་དང་པོ_ཟླ་བ་གཉིས་པ_ཟླ་བ་གསུམ་པ_ཟླ་བ་བཞི་པ_ཟླ་བ་ལྔ་པ_ཟླ་བ་དྲུག་པ_ཟླ་བ་བདུན་པ_ཟླ་བ་བརྒྱད་པ_ཟླ་བ་དགུ་པ_ཟླ་བ་བཅུ་པ_ཟླ་བ་བཅུ་གཅིག་པ_ཟླ་བ་བཅུ་གཉིས་པ'.split(
+        '_'
+    ),
+    monthsShort:
+        'ཟླ་1_ཟླ་2_ཟླ་3_ཟླ་4_ཟླ་5_ཟླ་6_ཟླ་7_ཟླ་8_ཟླ་9_ཟླ་10_ཟླ་11_ཟླ་12'.split(
+            '_'
+        ),
+    monthsShortRegex: /^(ཟླ་\d{1,2})/,
+    monthsParseExact: true,
+    weekdays:
+        'གཟའ་ཉི་མ་_གཟའ་ཟླ་བ་_གཟའ་མིག་དམར་_གཟའ་ལྷག་པ་_གཟའ་ཕུར་བུ_གཟའ་པ་སངས་_གཟའ་སྤེན་པ་'.split(
+            '_'
+        ),
+    weekdaysShort: 'ཉི་མ་_ཟླ་བ་_མིག་དམར་_ལྷག་པ་_ཕུར་བུ_པ་སངས་_སྤེན་པ་'.split(
+        '_'
+    ),
+    weekdaysMin: 'ཉི_ཟླ_མིག_ལྷག_ཕུར_སངས_སྤེན'.split('_'),
+    longDateFormat: {
+        LT: 'A h:mm',
+        LTS: 'A h:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY, A h:mm',
+        LLLL: 'dddd, D MMMM YYYY, A h:mm',
+    },
+    calendar: {
+        sameDay: '[དི་རིང] LT',
+        nextDay: '[སང་ཉིན] LT',
+        nextWeek: '[བདུན་ཕྲག་རྗེས་མ], LT',
+        lastDay: '[ཁ་སང] LT',
+        lastWeek: '[བདུན་ཕྲག་མཐའ་མ] dddd, LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s ལ་',
+        past: '%s སྔན་ལ',
+        s: 'ལམ་སང',
+        ss: '%d སྐར་ཆ།',
+        m: 'སྐར་མ་གཅིག',
+        mm: '%d སྐར་མ',
+        h: 'ཆུ་ཚོད་གཅིག',
+        hh: '%d ཆུ་ཚོད',
+        d: 'ཉིན་གཅིག',
+        dd: '%d ཉིན་',
+        M: 'ཟླ་བ་གཅིག',
+        MM: '%d ཟླ་བ',
+        y: 'ལོ་གཅིག',
+        yy: '%d ལོ',
+    },
+    preparse: function (string) {
+        return string.replace(/[༡༢༣༤༥༦༧༨༩༠]/g, function (match) {
+            return numberMap[match];
+        });
+    },
+    postformat: function (string) {
+        return string.replace(/\d/g, function (match) {
+            return symbolMap[match];
+        });
+    },
+    meridiemParse: /མཚན་མོ|ཞོགས་ཀས|ཉིན་གུང|དགོང་དག|མཚན་མོ/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (
+            (meridiem === 'མཚན་མོ' && hour >= 4) ||
+            (meridiem === 'ཉིན་གུང' && hour < 5) ||
+            meridiem === 'དགོང་དག'
+        ) {
+            return hour + 12;
+        } else {
+            return hour;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'མཚན་མོ';
+        } else if (hour < 10) {
+            return 'ཞོགས་ཀས';
+        } else if (hour < 17) {
+            return 'ཉིན་གུང';
+        } else if (hour < 20) {
+            return 'དགོང་དག';
+        } else {
+            return 'མཚན་མོ';
+        }
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/br.js b/backend/node_modules/moment/src/locale/br.js
new file mode 100644
index 0000000..a7dda49
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/br.js
@@ -0,0 +1,168 @@
+//! moment.js locale configuration
+//! locale : Breton [br]
+//! author : Jean-Baptiste Le Duigou : https://github.com/jbleduigou
+
+import moment from '../moment';
+
+function relativeTimeWithMutation(number, withoutSuffix, key) {
+    var format = {
+        mm: 'munutenn',
+        MM: 'miz',
+        dd: 'devezh',
+    };
+    return number + ' ' + mutation(format[key], number);
+}
+function specialMutationForYears(number) {
+    switch (lastNumber(number)) {
+        case 1:
+        case 3:
+        case 4:
+        case 5:
+        case 9:
+            return number + ' bloaz';
+        default:
+            return number + ' vloaz';
+    }
+}
+function lastNumber(number) {
+    if (number > 9) {
+        return lastNumber(number % 10);
+    }
+    return number;
+}
+function mutation(text, number) {
+    if (number === 2) {
+        return softMutation(text);
+    }
+    return text;
+}
+function softMutation(text) {
+    var mutationTable = {
+        m: 'v',
+        b: 'v',
+        d: 'z',
+    };
+    if (mutationTable[text.charAt(0)] === undefined) {
+        return text;
+    }
+    return mutationTable[text.charAt(0)] + text.substring(1);
+}
+
+var monthsParse = [
+        /^gen/i,
+        /^c[ʼ\']hwe/i,
+        /^meu/i,
+        /^ebr/i,
+        /^mae/i,
+        /^(mez|eve)/i,
+        /^gou/i,
+        /^eos/i,
+        /^gwe/i,
+        /^her/i,
+        /^du/i,
+        /^ker/i,
+    ],
+    monthsRegex =
+        /^(genver|c[ʼ\']hwevrer|meurzh|ebrel|mae|mezheven|gouere|eost|gwengolo|here|du|kerzu|gen|c[ʼ\']hwe|meu|ebr|mae|eve|gou|eos|gwe|her|du|ker)/i,
+    monthsStrictRegex =
+        /^(genver|c[ʼ\']hwevrer|meurzh|ebrel|mae|mezheven|gouere|eost|gwengolo|here|du|kerzu)/i,
+    monthsShortStrictRegex =
+        /^(gen|c[ʼ\']hwe|meu|ebr|mae|eve|gou|eos|gwe|her|du|ker)/i,
+    fullWeekdaysParse = [
+        /^sul/i,
+        /^lun/i,
+        /^meurzh/i,
+        /^merc[ʼ\']her/i,
+        /^yaou/i,
+        /^gwener/i,
+        /^sadorn/i,
+    ],
+    shortWeekdaysParse = [
+        /^Sul/i,
+        /^Lun/i,
+        /^Meu/i,
+        /^Mer/i,
+        /^Yao/i,
+        /^Gwe/i,
+        /^Sad/i,
+    ],
+    minWeekdaysParse = [
+        /^Su/i,
+        /^Lu/i,
+        /^Me([^r]|$)/i,
+        /^Mer/i,
+        /^Ya/i,
+        /^Gw/i,
+        /^Sa/i,
+    ];
+
+export default moment.defineLocale('br', {
+    months: 'Genver_Cʼhwevrer_Meurzh_Ebrel_Mae_Mezheven_Gouere_Eost_Gwengolo_Here_Du_Kerzu'.split(
+        '_'
+    ),
+    monthsShort: 'Gen_Cʼhwe_Meu_Ebr_Mae_Eve_Gou_Eos_Gwe_Her_Du_Ker'.split('_'),
+    weekdays: 'Sul_Lun_Meurzh_Mercʼher_Yaou_Gwener_Sadorn'.split('_'),
+    weekdaysShort: 'Sul_Lun_Meu_Mer_Yao_Gwe_Sad'.split('_'),
+    weekdaysMin: 'Su_Lu_Me_Mer_Ya_Gw_Sa'.split('_'),
+    weekdaysParse: minWeekdaysParse,
+    fullWeekdaysParse: fullWeekdaysParse,
+    shortWeekdaysParse: shortWeekdaysParse,
+    minWeekdaysParse: minWeekdaysParse,
+
+    monthsRegex: monthsRegex,
+    monthsShortRegex: monthsRegex,
+    monthsStrictRegex: monthsStrictRegex,
+    monthsShortStrictRegex: monthsShortStrictRegex,
+    monthsParse: monthsParse,
+    longMonthsParse: monthsParse,
+    shortMonthsParse: monthsParse,
+
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D [a viz] MMMM YYYY',
+        LLL: 'D [a viz] MMMM YYYY HH:mm',
+        LLLL: 'dddd, D [a viz] MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Hiziv da] LT',
+        nextDay: '[Warcʼhoazh da] LT',
+        nextWeek: 'dddd [da] LT',
+        lastDay: '[Decʼh da] LT',
+        lastWeek: 'dddd [paset da] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'a-benn %s',
+        past: '%s ʼzo',
+        s: 'un nebeud segondennoù',
+        ss: '%d eilenn',
+        m: 'ur vunutenn',
+        mm: relativeTimeWithMutation,
+        h: 'un eur',
+        hh: '%d eur',
+        d: 'un devezh',
+        dd: relativeTimeWithMutation,
+        M: 'ur miz',
+        MM: relativeTimeWithMutation,
+        y: 'ur bloaz',
+        yy: specialMutationForYears,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(añ|vet)/,
+    ordinal: function (number) {
+        var output = number === 1 ? 'añ' : 'vet';
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+    meridiemParse: /a.m.|g.m./, // goude merenn | a-raok merenn
+    isPM: function (token) {
+        return token === 'g.m.';
+    },
+    meridiem: function (hour, minute, isLower) {
+        return hour < 12 ? 'a.m.' : 'g.m.';
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/bs.js b/backend/node_modules/moment/src/locale/bs.js
new file mode 100644
index 0000000..5235fe9
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/bs.js
@@ -0,0 +1,160 @@
+//! moment.js locale configuration
+//! locale : Bosnian [bs]
+//! author : Nedim Cholich : https://github.com/frontyard
+//! author : Rasid Redzic : https://github.com/rasidre
+//! based on (hr) translation by Bojan Marković
+
+import moment from '../moment';
+
+function processRelativeTime(number, withoutSuffix, key, isFuture) {
+    switch (key) {
+        case 'm':
+            return withoutSuffix
+                ? 'jedna minuta'
+                : isFuture
+                  ? 'jednu minutu'
+                  : 'jedne minute';
+    }
+}
+
+function translate(number, withoutSuffix, key) {
+    var result = number + ' ';
+    switch (key) {
+        case 'ss':
+            if (number === 1) {
+                result += 'sekunda';
+            } else if (number === 2 || number === 3 || number === 4) {
+                result += 'sekunde';
+            } else {
+                result += 'sekundi';
+            }
+            return result;
+        case 'mm':
+            if (number === 1) {
+                result += 'minuta';
+            } else if (number === 2 || number === 3 || number === 4) {
+                result += 'minute';
+            } else {
+                result += 'minuta';
+            }
+            return result;
+        case 'h':
+            return withoutSuffix ? 'jedan sat' : 'jedan sat';
+        case 'hh':
+            if (number === 1) {
+                result += 'sat';
+            } else if (number === 2 || number === 3 || number === 4) {
+                result += 'sata';
+            } else {
+                result += 'sati';
+            }
+            return result;
+        case 'dd':
+            if (number === 1) {
+                result += 'dan';
+            } else {
+                result += 'dana';
+            }
+            return result;
+        case 'MM':
+            if (number === 1) {
+                result += 'mjesec';
+            } else if (number === 2 || number === 3 || number === 4) {
+                result += 'mjeseca';
+            } else {
+                result += 'mjeseci';
+            }
+            return result;
+        case 'yy':
+            if (number === 1) {
+                result += 'godina';
+            } else if (number === 2 || number === 3 || number === 4) {
+                result += 'godine';
+            } else {
+                result += 'godina';
+            }
+            return result;
+    }
+}
+
+export default moment.defineLocale('bs', {
+    months: 'januar_februar_mart_april_maj_juni_juli_august_septembar_oktobar_novembar_decembar'.split(
+        '_'
+    ),
+    monthsShort:
+        'jan._feb._mar._apr._maj._jun._jul._aug._sep._okt._nov._dec.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'nedjelja_ponedjeljak_utorak_srijeda_četvrtak_petak_subota'.split(
+        '_'
+    ),
+    weekdaysShort: 'ned._pon._uto._sri._čet._pet._sub.'.split('_'),
+    weekdaysMin: 'ne_po_ut_sr_če_pe_su'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY H:mm',
+        LLLL: 'dddd, D. MMMM YYYY H:mm',
+    },
+    calendar: {
+        sameDay: '[danas u] LT',
+        nextDay: '[sutra u] LT',
+        nextWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[u] [nedjelju] [u] LT';
+                case 3:
+                    return '[u] [srijedu] [u] LT';
+                case 6:
+                    return '[u] [subotu] [u] LT';
+                case 1:
+                case 2:
+                case 4:
+                case 5:
+                    return '[u] dddd [u] LT';
+            }
+        },
+        lastDay: '[jučer u] LT',
+        lastWeek: function () {
+            switch (this.day()) {
+                case 0:
+                case 3:
+                    return '[prošlu] dddd [u] LT';
+                case 6:
+                    return '[prošle] [subote] [u] LT';
+                case 1:
+                case 2:
+                case 4:
+                case 5:
+                    return '[prošli] dddd [u] LT';
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'za %s',
+        past: 'prije %s',
+        s: 'par sekundi',
+        ss: translate,
+        m: processRelativeTime,
+        mm: translate,
+        h: translate,
+        hh: translate,
+        d: 'dan',
+        dd: translate,
+        M: 'mjesec',
+        MM: translate,
+        y: 'godinu',
+        yy: translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ca.js b/backend/node_modules/moment/src/locale/ca.js
new file mode 100644
index 0000000..c356211
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ca.js
@@ -0,0 +1,100 @@
+//! moment.js locale configuration
+//! locale : Catalan [ca]
+//! author : Juan G. Hurtado : https://github.com/juanghurtado
+
+import moment from '../moment';
+
+export default moment.defineLocale('ca', {
+    months: {
+        standalone:
+            'gener_febrer_març_abril_maig_juny_juliol_agost_setembre_octubre_novembre_desembre'.split(
+                '_'
+            ),
+        format: "de gener_de febrer_de març_d'abril_de maig_de juny_de juliol_d'agost_de setembre_d'octubre_de novembre_de desembre".split(
+            '_'
+        ),
+        isFormat: /D[oD]?(\s)+MMMM/,
+    },
+    monthsShort:
+        'gen._febr._març_abr._maig_juny_jul._ag._set._oct._nov._des.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays:
+        'diumenge_dilluns_dimarts_dimecres_dijous_divendres_dissabte'.split(
+            '_'
+        ),
+    weekdaysShort: 'dg._dl._dt._dc._dj._dv._ds.'.split('_'),
+    weekdaysMin: 'dg_dl_dt_dc_dj_dv_ds'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM [de] YYYY',
+        ll: 'D MMM YYYY',
+        LLL: 'D MMMM [de] YYYY [a les] H:mm',
+        lll: 'D MMM YYYY, H:mm',
+        LLLL: 'dddd D MMMM [de] YYYY [a les] H:mm',
+        llll: 'ddd D MMM YYYY, H:mm',
+    },
+    calendar: {
+        sameDay: function () {
+            return '[avui a ' + (this.hours() !== 1 ? 'les' : 'la') + '] LT';
+        },
+        nextDay: function () {
+            return '[demà a ' + (this.hours() !== 1 ? 'les' : 'la') + '] LT';
+        },
+        nextWeek: function () {
+            return 'dddd [a ' + (this.hours() !== 1 ? 'les' : 'la') + '] LT';
+        },
+        lastDay: function () {
+            return '[ahir a ' + (this.hours() !== 1 ? 'les' : 'la') + '] LT';
+        },
+        lastWeek: function () {
+            return (
+                '[el] dddd [passat a ' +
+                (this.hours() !== 1 ? 'les' : 'la') +
+                '] LT'
+            );
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: "d'aquí %s",
+        past: 'fa %s',
+        s: 'uns segons',
+        ss: '%d segons',
+        m: 'un minut',
+        mm: '%d minuts',
+        h: 'una hora',
+        hh: '%d hores',
+        d: 'un dia',
+        dd: '%d dies',
+        M: 'un mes',
+        MM: '%d mesos',
+        y: 'un any',
+        yy: '%d anys',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(r|n|t|è|a)/,
+    ordinal: function (number, period) {
+        var output =
+            number === 1
+                ? 'r'
+                : number === 2
+                  ? 'n'
+                  : number === 3
+                    ? 'r'
+                    : number === 4
+                      ? 't'
+                      : 'è';
+        if (period === 'w' || period === 'W') {
+            output = 'a';
+        }
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/cs.js b/backend/node_modules/moment/src/locale/cs.js
new file mode 100644
index 0000000..bf5dd09
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/cs.js
@@ -0,0 +1,181 @@
+//! moment.js locale configuration
+//! locale : Czech [cs]
+//! author : petrbela : https://github.com/petrbela
+
+import moment from '../moment';
+
+var months = {
+        standalone:
+            'leden_únor_březen_duben_květen_červen_červenec_srpen_září_říjen_listopad_prosinec'.split(
+                '_'
+            ),
+        format: 'ledna_února_března_dubna_května_června_července_srpna_září_října_listopadu_prosince'.split(
+            '_'
+        ),
+        isFormat: /DD?[o.]?(\[[^\[\]]*\]|\s)+MMMM/,
+    },
+    monthsShort = 'led_úno_bře_dub_kvě_čvn_čvc_srp_zář_říj_lis_pro'.split('_'),
+    monthsParse = [
+        /^led/i,
+        /^úno/i,
+        /^bře/i,
+        /^dub/i,
+        /^kvě/i,
+        /^(čvn|červen$|června)/i,
+        /^(čvc|červenec|července)/i,
+        /^srp/i,
+        /^zář/i,
+        /^říj/i,
+        /^lis/i,
+        /^pro/i,
+    ],
+    // NOTE: 'červen' is substring of 'červenec'; therefore 'červenec' must precede 'červen' in the regex to be fully matched.
+    // Otherwise parser matches '1. červenec' as '1. červen' + 'ec'.
+    monthsRegex =
+        /^(leden|únor|březen|duben|květen|červenec|července|červen|června|srpen|září|říjen|listopad|prosinec|led|úno|bře|dub|kvě|čvn|čvc|srp|zář|říj|lis|pro)/i;
+
+function plural(n) {
+    return n > 1 && n < 5 && ~~(n / 10) !== 1;
+}
+function translate(number, withoutSuffix, key, isFuture) {
+    var result = number + ' ';
+    switch (key) {
+        case 's': // a few seconds / in a few seconds / a few seconds ago
+            return withoutSuffix || isFuture ? 'pár sekund' : 'pár sekundami';
+        case 'ss': // 9 seconds / in 9 seconds / 9 seconds ago
+            if (withoutSuffix || isFuture) {
+                return result + (plural(number) ? 'sekundy' : 'sekund');
+            } else {
+                return result + 'sekundami';
+            }
+        case 'm': // a minute / in a minute / a minute ago
+            return withoutSuffix ? 'minuta' : isFuture ? 'minutu' : 'minutou';
+        case 'mm': // 9 minutes / in 9 minutes / 9 minutes ago
+            if (withoutSuffix || isFuture) {
+                return result + (plural(number) ? 'minuty' : 'minut');
+            } else {
+                return result + 'minutami';
+            }
+        case 'h': // an hour / in an hour / an hour ago
+            return withoutSuffix ? 'hodina' : isFuture ? 'hodinu' : 'hodinou';
+        case 'hh': // 9 hours / in 9 hours / 9 hours ago
+            if (withoutSuffix || isFuture) {
+                return result + (plural(number) ? 'hodiny' : 'hodin');
+            } else {
+                return result + 'hodinami';
+            }
+        case 'd': // a day / in a day / a day ago
+            return withoutSuffix || isFuture ? 'den' : 'dnem';
+        case 'dd': // 9 days / in 9 days / 9 days ago
+            if (withoutSuffix || isFuture) {
+                return result + (plural(number) ? 'dny' : 'dní');
+            } else {
+                return result + 'dny';
+            }
+        case 'M': // a month / in a month / a month ago
+            return withoutSuffix || isFuture ? 'měsíc' : 'měsícem';
+        case 'MM': // 9 months / in 9 months / 9 months ago
+            if (withoutSuffix || isFuture) {
+                return result + (plural(number) ? 'měsíce' : 'měsíců');
+            } else {
+                return result + 'měsíci';
+            }
+        case 'y': // a year / in a year / a year ago
+            return withoutSuffix || isFuture ? 'rok' : 'rokem';
+        case 'yy': // 9 years / in 9 years / 9 years ago
+            if (withoutSuffix || isFuture) {
+                return result + (plural(number) ? 'roky' : 'let');
+            } else {
+                return result + 'lety';
+            }
+    }
+}
+
+export default moment.defineLocale('cs', {
+    months: months,
+    monthsShort: monthsShort,
+    monthsRegex: monthsRegex,
+    monthsShortRegex: monthsRegex,
+    // NOTE: 'červen' is substring of 'červenec'; therefore 'červenec' must precede 'červen' in the regex to be fully matched.
+    // Otherwise parser matches '1. červenec' as '1. červen' + 'ec'.
+    monthsStrictRegex:
+        /^(leden|ledna|února|únor|březen|března|duben|dubna|květen|května|červenec|července|červen|června|srpen|srpna|září|říjen|října|listopadu|listopad|prosinec|prosince)/i,
+    monthsShortStrictRegex:
+        /^(led|úno|bře|dub|kvě|čvn|čvc|srp|zář|říj|lis|pro)/i,
+    monthsParse: monthsParse,
+    longMonthsParse: monthsParse,
+    shortMonthsParse: monthsParse,
+    weekdays: 'neděle_pondělí_úterý_středa_čtvrtek_pátek_sobota'.split('_'),
+    weekdaysShort: 'ne_po_út_st_čt_pá_so'.split('_'),
+    weekdaysMin: 'ne_po_út_st_čt_pá_so'.split('_'),
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY H:mm',
+        LLLL: 'dddd D. MMMM YYYY H:mm',
+        l: 'D. M. YYYY',
+    },
+    calendar: {
+        sameDay: '[dnes v] LT',
+        nextDay: '[zítra v] LT',
+        nextWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[v neděli v] LT';
+                case 1:
+                case 2:
+                    return '[v] dddd [v] LT';
+                case 3:
+                    return '[ve středu v] LT';
+                case 4:
+                    return '[ve čtvrtek v] LT';
+                case 5:
+                    return '[v pátek v] LT';
+                case 6:
+                    return '[v sobotu v] LT';
+            }
+        },
+        lastDay: '[včera v] LT',
+        lastWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[minulou neděli v] LT';
+                case 1:
+                case 2:
+                    return '[minulé] dddd [v] LT';
+                case 3:
+                    return '[minulou středu v] LT';
+                case 4:
+                case 5:
+                    return '[minulý] dddd [v] LT';
+                case 6:
+                    return '[minulou sobotu v] LT';
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'za %s',
+        past: 'před %s',
+        s: translate,
+        ss: translate,
+        m: translate,
+        mm: translate,
+        h: translate,
+        hh: translate,
+        d: translate,
+        dd: translate,
+        M: translate,
+        MM: translate,
+        y: translate,
+        yy: translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/cv.js b/backend/node_modules/moment/src/locale/cv.js
new file mode 100644
index 0000000..06c196a
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/cv.js
@@ -0,0 +1,63 @@
+//! moment.js locale configuration
+//! locale : Chuvash [cv]
+//! author : Anatoly Mironov : https://github.com/mirontoli
+
+import moment from '../moment';
+
+export default moment.defineLocale('cv', {
+    months: 'кӑрлач_нарӑс_пуш_ака_май_ҫӗртме_утӑ_ҫурла_авӑн_юпа_чӳк_раштав'.split(
+        '_'
+    ),
+    monthsShort: 'кӑр_нар_пуш_ака_май_ҫӗр_утӑ_ҫур_авн_юпа_чӳк_раш'.split('_'),
+    weekdays:
+        'вырсарникун_тунтикун_ытларикун_юнкун_кӗҫнерникун_эрнекун_шӑматкун'.split(
+            '_'
+        ),
+    weekdaysShort: 'выр_тун_ытл_юн_кӗҫ_эрн_шӑм'.split('_'),
+    weekdaysMin: 'вр_тн_ыт_юн_кҫ_эр_шм'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD-MM-YYYY',
+        LL: 'YYYY [ҫулхи] MMMM [уйӑхӗн] D[-мӗшӗ]',
+        LLL: 'YYYY [ҫулхи] MMMM [уйӑхӗн] D[-мӗшӗ], HH:mm',
+        LLLL: 'dddd, YYYY [ҫулхи] MMMM [уйӑхӗн] D[-мӗшӗ], HH:mm',
+    },
+    calendar: {
+        sameDay: '[Паян] LT [сехетре]',
+        nextDay: '[Ыран] LT [сехетре]',
+        lastDay: '[Ӗнер] LT [сехетре]',
+        nextWeek: '[Ҫитес] dddd LT [сехетре]',
+        lastWeek: '[Иртнӗ] dddd LT [сехетре]',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: function (output) {
+            var affix = /сехет$/i.exec(output)
+                ? 'рен'
+                : /ҫул$/i.exec(output)
+                  ? 'тан'
+                  : 'ран';
+            return output + affix;
+        },
+        past: '%s каялла',
+        s: 'пӗр-ик ҫеккунт',
+        ss: '%d ҫеккунт',
+        m: 'пӗр минут',
+        mm: '%d минут',
+        h: 'пӗр сехет',
+        hh: '%d сехет',
+        d: 'пӗр кун',
+        dd: '%d кун',
+        M: 'пӗр уйӑх',
+        MM: '%d уйӑх',
+        y: 'пӗр ҫул',
+        yy: '%d ҫул',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}-мӗш/,
+    ordinal: '%d-мӗш',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/cy.js b/backend/node_modules/moment/src/locale/cy.js
new file mode 100644
index 0000000..e12344a
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/cy.js
@@ -0,0 +1,98 @@
+//! moment.js locale configuration
+//! locale : Welsh [cy]
+//! author : Robert Allen : https://github.com/robgallen
+//! author : https://github.com/ryangreaves
+
+import moment from '../moment';
+
+export default moment.defineLocale('cy', {
+    months: 'Ionawr_Chwefror_Mawrth_Ebrill_Mai_Mehefin_Gorffennaf_Awst_Medi_Hydref_Tachwedd_Rhagfyr'.split(
+        '_'
+    ),
+    monthsShort: 'Ion_Chwe_Maw_Ebr_Mai_Meh_Gor_Aws_Med_Hyd_Tach_Rhag'.split(
+        '_'
+    ),
+    weekdays:
+        'Dydd Sul_Dydd Llun_Dydd Mawrth_Dydd Mercher_Dydd Iau_Dydd Gwener_Dydd Sadwrn'.split(
+            '_'
+        ),
+    weekdaysShort: 'Sul_Llun_Maw_Mer_Iau_Gwe_Sad'.split('_'),
+    weekdaysMin: 'Su_Ll_Ma_Me_Ia_Gw_Sa'.split('_'),
+    weekdaysParseExact: true,
+    // time formats are the same as en-gb
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Heddiw am] LT',
+        nextDay: '[Yfory am] LT',
+        nextWeek: 'dddd [am] LT',
+        lastDay: '[Ddoe am] LT',
+        lastWeek: 'dddd [diwethaf am] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'mewn %s',
+        past: '%s yn ôl',
+        s: 'ychydig eiliadau',
+        ss: '%d eiliad',
+        m: 'munud',
+        mm: '%d munud',
+        h: 'awr',
+        hh: '%d awr',
+        d: 'diwrnod',
+        dd: '%d diwrnod',
+        M: 'mis',
+        MM: '%d mis',
+        y: 'blwyddyn',
+        yy: '%d flynedd',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(fed|ain|af|il|ydd|ed|eg)/,
+    // traditional ordinal numbers above 31 are not commonly used in colloquial Welsh
+    ordinal: function (number) {
+        var b = number,
+            output = '',
+            lookup = [
+                '',
+                'af',
+                'il',
+                'ydd',
+                'ydd',
+                'ed',
+                'ed',
+                'ed',
+                'fed',
+                'fed',
+                'fed', // 1af to 10fed
+                'eg',
+                'fed',
+                'eg',
+                'eg',
+                'fed',
+                'eg',
+                'eg',
+                'fed',
+                'eg',
+                'fed', // 11eg to 20fed
+            ];
+        if (b > 20) {
+            if (b === 40 || b === 50 || b === 60 || b === 80 || b === 100) {
+                output = 'fed'; // not 30ain, 70ain or 90ain
+            } else {
+                output = 'ain';
+            }
+        } else if (b > 0) {
+            output = lookup[b];
+        }
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/da.js b/backend/node_modules/moment/src/locale/da.js
new file mode 100644
index 0000000..d1fc181
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/da.js
@@ -0,0 +1,53 @@
+//! moment.js locale configuration
+//! locale : Danish [da]
+//! author : Ulrik Nielsen : https://github.com/mrbase
+
+import moment from '../moment';
+
+export default moment.defineLocale('da', {
+    months: 'januar_februar_marts_april_maj_juni_juli_august_september_oktober_november_december'.split(
+        '_'
+    ),
+    monthsShort: 'jan_feb_mar_apr_maj_jun_jul_aug_sep_okt_nov_dec'.split('_'),
+    weekdays: 'søndag_mandag_tirsdag_onsdag_torsdag_fredag_lørdag'.split('_'),
+    weekdaysShort: 'søn_man_tir_ons_tor_fre_lør'.split('_'),
+    weekdaysMin: 'sø_ma_ti_on_to_fr_lø'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY HH:mm',
+        LLLL: 'dddd [d.] D. MMMM YYYY [kl.] HH:mm',
+    },
+    calendar: {
+        sameDay: '[i dag kl.] LT',
+        nextDay: '[i morgen kl.] LT',
+        nextWeek: 'på dddd [kl.] LT',
+        lastDay: '[i går kl.] LT',
+        lastWeek: '[i] dddd[s kl.] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'om %s',
+        past: '%s siden',
+        s: 'få sekunder',
+        ss: '%d sekunder',
+        m: 'et minut',
+        mm: '%d minutter',
+        h: 'en time',
+        hh: '%d timer',
+        d: 'en dag',
+        dd: '%d dage',
+        M: 'en måned',
+        MM: '%d måneder',
+        y: 'et år',
+        yy: '%d år',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/de-at.js b/backend/node_modules/moment/src/locale/de-at.js
new file mode 100644
index 0000000..8318fec
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/de-at.js
@@ -0,0 +1,79 @@
+//! moment.js locale configuration
+//! locale : German (Austria) [de-at]
+//! author : lluchs : https://github.com/lluchs
+//! author: Menelion Elensúle: https://github.com/Oire
+//! author : Martin Groller : https://github.com/MadMG
+//! author : Mikolaj Dadela : https://github.com/mik01aj
+
+import moment from '../moment';
+
+function processRelativeTime(number, withoutSuffix, key, isFuture) {
+    var format = {
+        m: ['eine Minute', 'einer Minute'],
+        h: ['eine Stunde', 'einer Stunde'],
+        d: ['ein Tag', 'einem Tag'],
+        dd: [number + ' Tage', number + ' Tagen'],
+        w: ['eine Woche', 'einer Woche'],
+        M: ['ein Monat', 'einem Monat'],
+        MM: [number + ' Monate', number + ' Monaten'],
+        y: ['ein Jahr', 'einem Jahr'],
+        yy: [number + ' Jahre', number + ' Jahren'],
+    };
+    return withoutSuffix ? format[key][0] : format[key][1];
+}
+
+export default moment.defineLocale('de-at', {
+    months: 'Jänner_Februar_März_April_Mai_Juni_Juli_August_September_Oktober_November_Dezember'.split(
+        '_'
+    ),
+    monthsShort:
+        'Jän._Feb._März_Apr._Mai_Juni_Juli_Aug._Sep._Okt._Nov._Dez.'.split('_'),
+    monthsParseExact: true,
+    weekdays:
+        'Sonntag_Montag_Dienstag_Mittwoch_Donnerstag_Freitag_Samstag'.split(
+            '_'
+        ),
+    weekdaysShort: 'So._Mo._Di._Mi._Do._Fr._Sa.'.split('_'),
+    weekdaysMin: 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY HH:mm',
+        LLLL: 'dddd, D. MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[heute um] LT [Uhr]',
+        sameElse: 'L',
+        nextDay: '[morgen um] LT [Uhr]',
+        nextWeek: 'dddd [um] LT [Uhr]',
+        lastDay: '[gestern um] LT [Uhr]',
+        lastWeek: '[letzten] dddd [um] LT [Uhr]',
+    },
+    relativeTime: {
+        future: 'in %s',
+        past: 'vor %s',
+        s: 'ein paar Sekunden',
+        ss: '%d Sekunden',
+        m: processRelativeTime,
+        mm: '%d Minuten',
+        h: processRelativeTime,
+        hh: '%d Stunden',
+        d: processRelativeTime,
+        dd: processRelativeTime,
+        w: processRelativeTime,
+        ww: '%d Wochen',
+        M: processRelativeTime,
+        MM: processRelativeTime,
+        y: processRelativeTime,
+        yy: processRelativeTime,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/de-ch.js b/backend/node_modules/moment/src/locale/de-ch.js
new file mode 100644
index 0000000..4e67507
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/de-ch.js
@@ -0,0 +1,78 @@
+//! moment.js locale configuration
+//! locale : German (Switzerland) [de-ch]
+//! author : sschueller : https://github.com/sschueller
+
+// based on: https://www.bk.admin.ch/dokumentation/sprachen/04915/05016/index.html?lang=de#
+
+import moment from '../moment';
+
+function processRelativeTime(number, withoutSuffix, key, isFuture) {
+    var format = {
+        m: ['eine Minute', 'einer Minute'],
+        h: ['eine Stunde', 'einer Stunde'],
+        d: ['ein Tag', 'einem Tag'],
+        dd: [number + ' Tage', number + ' Tagen'],
+        w: ['eine Woche', 'einer Woche'],
+        M: ['ein Monat', 'einem Monat'],
+        MM: [number + ' Monate', number + ' Monaten'],
+        y: ['ein Jahr', 'einem Jahr'],
+        yy: [number + ' Jahre', number + ' Jahren'],
+    };
+    return withoutSuffix ? format[key][0] : format[key][1];
+}
+
+export default moment.defineLocale('de-ch', {
+    months: 'Januar_Februar_März_April_Mai_Juni_Juli_August_September_Oktober_November_Dezember'.split(
+        '_'
+    ),
+    monthsShort:
+        'Jan._Feb._März_Apr._Mai_Juni_Juli_Aug._Sep._Okt._Nov._Dez.'.split('_'),
+    monthsParseExact: true,
+    weekdays:
+        'Sonntag_Montag_Dienstag_Mittwoch_Donnerstag_Freitag_Samstag'.split(
+            '_'
+        ),
+    weekdaysShort: 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
+    weekdaysMin: 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY HH:mm',
+        LLLL: 'dddd, D. MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[heute um] LT [Uhr]',
+        sameElse: 'L',
+        nextDay: '[morgen um] LT [Uhr]',
+        nextWeek: 'dddd [um] LT [Uhr]',
+        lastDay: '[gestern um] LT [Uhr]',
+        lastWeek: '[letzten] dddd [um] LT [Uhr]',
+    },
+    relativeTime: {
+        future: 'in %s',
+        past: 'vor %s',
+        s: 'ein paar Sekunden',
+        ss: '%d Sekunden',
+        m: processRelativeTime,
+        mm: '%d Minuten',
+        h: processRelativeTime,
+        hh: '%d Stunden',
+        d: processRelativeTime,
+        dd: processRelativeTime,
+        w: processRelativeTime,
+        ww: '%d Wochen',
+        M: processRelativeTime,
+        MM: processRelativeTime,
+        y: processRelativeTime,
+        yy: processRelativeTime,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/de.js b/backend/node_modules/moment/src/locale/de.js
new file mode 100644
index 0000000..cb9c8d5
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/de.js
@@ -0,0 +1,78 @@
+//! moment.js locale configuration
+//! locale : German [de]
+//! author : lluchs : https://github.com/lluchs
+//! author: Menelion Elensúle: https://github.com/Oire
+//! author : Mikolaj Dadela : https://github.com/mik01aj
+
+import moment from '../moment';
+
+function processRelativeTime(number, withoutSuffix, key, isFuture) {
+    var format = {
+        m: ['eine Minute', 'einer Minute'],
+        h: ['eine Stunde', 'einer Stunde'],
+        d: ['ein Tag', 'einem Tag'],
+        dd: [number + ' Tage', number + ' Tagen'],
+        w: ['eine Woche', 'einer Woche'],
+        M: ['ein Monat', 'einem Monat'],
+        MM: [number + ' Monate', number + ' Monaten'],
+        y: ['ein Jahr', 'einem Jahr'],
+        yy: [number + ' Jahre', number + ' Jahren'],
+    };
+    return withoutSuffix ? format[key][0] : format[key][1];
+}
+
+export default moment.defineLocale('de', {
+    months: 'Januar_Februar_März_April_Mai_Juni_Juli_August_September_Oktober_November_Dezember'.split(
+        '_'
+    ),
+    monthsShort:
+        'Jan._Feb._März_Apr._Mai_Juni_Juli_Aug._Sep._Okt._Nov._Dez.'.split('_'),
+    monthsParseExact: true,
+    weekdays:
+        'Sonntag_Montag_Dienstag_Mittwoch_Donnerstag_Freitag_Samstag'.split(
+            '_'
+        ),
+    weekdaysShort: 'So._Mo._Di._Mi._Do._Fr._Sa.'.split('_'),
+    weekdaysMin: 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY HH:mm',
+        LLLL: 'dddd, D. MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[heute um] LT [Uhr]',
+        sameElse: 'L',
+        nextDay: '[morgen um] LT [Uhr]',
+        nextWeek: 'dddd [um] LT [Uhr]',
+        lastDay: '[gestern um] LT [Uhr]',
+        lastWeek: '[letzten] dddd [um] LT [Uhr]',
+    },
+    relativeTime: {
+        future: 'in %s',
+        past: 'vor %s',
+        s: 'ein paar Sekunden',
+        ss: '%d Sekunden',
+        m: processRelativeTime,
+        mm: '%d Minuten',
+        h: processRelativeTime,
+        hh: '%d Stunden',
+        d: processRelativeTime,
+        dd: processRelativeTime,
+        w: processRelativeTime,
+        ww: '%d Wochen',
+        M: processRelativeTime,
+        MM: processRelativeTime,
+        y: processRelativeTime,
+        yy: processRelativeTime,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/dv.js b/backend/node_modules/moment/src/locale/dv.js
new file mode 100644
index 0000000..26520d4
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/dv.js
@@ -0,0 +1,90 @@
+//! moment.js locale configuration
+//! locale : Maldivian [dv]
+//! author : Jawish Hameed : https://github.com/jawish
+
+import moment from '../moment';
+
+var months = [
+        'ޖެނުއަރީ',
+        'ފެބްރުއަރީ',
+        'މާރިޗު',
+        'އޭޕްރީލު',
+        'މޭ',
+        'ޖޫން',
+        'ޖުލައި',
+        'އޯގަސްޓު',
+        'ސެޕްޓެމްބަރު',
+        'އޮކްޓޯބަރު',
+        'ނޮވެމްބަރު',
+        'ޑިސެމްބަރު',
+    ],
+    weekdays = [
+        'އާދިއްތަ',
+        'ހޯމަ',
+        'އަންގާރަ',
+        'ބުދަ',
+        'ބުރާސްފަތި',
+        'ހުކުރު',
+        'ހޮނިހިރު',
+    ];
+
+export default moment.defineLocale('dv', {
+    months: months,
+    monthsShort: months,
+    weekdays: weekdays,
+    weekdaysShort: weekdays,
+    weekdaysMin: 'އާދި_ހޯމަ_އަން_ބުދަ_ބުރާ_ހުކު_ހޮނި'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'D/M/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    meridiemParse: /މކ|މފ/,
+    isPM: function (input) {
+        return 'މފ' === input;
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'މކ';
+        } else {
+            return 'މފ';
+        }
+    },
+    calendar: {
+        sameDay: '[މިއަދު] LT',
+        nextDay: '[މާދަމާ] LT',
+        nextWeek: 'dddd LT',
+        lastDay: '[އިއްޔެ] LT',
+        lastWeek: '[ފާއިތުވި] dddd LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'ތެރޭގައި %s',
+        past: 'ކުރިން %s',
+        s: 'ސިކުންތުކޮޅެއް',
+        ss: 'd% ސިކުންތު',
+        m: 'މިނިޓެއް',
+        mm: 'މިނިޓު %d',
+        h: 'ގަޑިއިރެއް',
+        hh: 'ގަޑިއިރު %d',
+        d: 'ދުވަހެއް',
+        dd: 'ދުވަސް %d',
+        M: 'މަހެއް',
+        MM: 'މަސް %d',
+        y: 'އަހަރެއް',
+        yy: 'އަހަރު %d',
+    },
+    preparse: function (string) {
+        return string.replace(/،/g, ',');
+    },
+    postformat: function (string) {
+        return string.replace(/,/g, '،');
+    },
+    week: {
+        dow: 7, // Sunday is the first day of the week.
+        doy: 12, // The week that contains Jan 12th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/el.js b/backend/node_modules/moment/src/locale/el.js
new file mode 100644
index 0000000..8a596f1
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/el.js
@@ -0,0 +1,106 @@
+//! moment.js locale configuration
+//! locale : Greek [el]
+//! author : Aggelos Karalias : https://github.com/mehiel
+
+import moment from '../moment';
+
+function isFunction(input) {
+    return (
+        (typeof Function !== 'undefined' && input instanceof Function) ||
+        Object.prototype.toString.call(input) === '[object Function]'
+    );
+}
+
+export default moment.defineLocale('el', {
+    monthsNominativeEl:
+        'Ιανουάριος_Φεβρουάριος_Μάρτιος_Απρίλιος_Μάιος_Ιούνιος_Ιούλιος_Αύγουστος_Σεπτέμβριος_Οκτώβριος_Νοέμβριος_Δεκέμβριος'.split(
+            '_'
+        ),
+    monthsGenitiveEl:
+        'Ιανουαρίου_Φεβρουαρίου_Μαρτίου_Απριλίου_Μαΐου_Ιουνίου_Ιουλίου_Αυγούστου_Σεπτεμβρίου_Οκτωβρίου_Νοεμβρίου_Δεκεμβρίου'.split(
+            '_'
+        ),
+    months: function (momentToFormat, format) {
+        if (!momentToFormat) {
+            return this._monthsNominativeEl;
+        } else if (
+            typeof format === 'string' &&
+            /D/.test(format.substring(0, format.indexOf('MMMM')))
+        ) {
+            // if there is a day number before 'MMMM'
+            return this._monthsGenitiveEl[momentToFormat.month()];
+        } else {
+            return this._monthsNominativeEl[momentToFormat.month()];
+        }
+    },
+    monthsShort: 'Ιαν_Φεβ_Μαρ_Απρ_Μαϊ_Ιουν_Ιουλ_Αυγ_Σεπ_Οκτ_Νοε_Δεκ'.split('_'),
+    weekdays: 'Κυριακή_Δευτέρα_Τρίτη_Τετάρτη_Πέμπτη_Παρασκευή_Σάββατο'.split(
+        '_'
+    ),
+    weekdaysShort: 'Κυρ_Δευ_Τρι_Τετ_Πεμ_Παρ_Σαβ'.split('_'),
+    weekdaysMin: 'Κυ_Δε_Τρ_Τε_Πε_Πα_Σα'.split('_'),
+    meridiem: function (hours, minutes, isLower) {
+        if (hours > 11) {
+            return isLower ? 'μμ' : 'ΜΜ';
+        } else {
+            return isLower ? 'πμ' : 'ΠΜ';
+        }
+    },
+    isPM: function (input) {
+        return (input + '').toLowerCase()[0] === 'μ';
+    },
+    meridiemParse: /[ΠΜ]\.?Μ?\.?/i,
+    longDateFormat: {
+        LT: 'h:mm A',
+        LTS: 'h:mm:ss A',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY h:mm A',
+        LLLL: 'dddd, D MMMM YYYY h:mm A',
+    },
+    calendarEl: {
+        sameDay: '[Σήμερα {}] LT',
+        nextDay: '[Αύριο {}] LT',
+        nextWeek: 'dddd [{}] LT',
+        lastDay: '[Χθες {}] LT',
+        lastWeek: function () {
+            switch (this.day()) {
+                case 6:
+                    return '[το προηγούμενο] dddd [{}] LT';
+                default:
+                    return '[την προηγούμενη] dddd [{}] LT';
+            }
+        },
+        sameElse: 'L',
+    },
+    calendar: function (key, mom) {
+        var output = this._calendarEl[key],
+            hours = mom && mom.hours();
+        if (isFunction(output)) {
+            output = output.apply(mom);
+        }
+        return output.replace('{}', hours % 12 === 1 ? 'στη' : 'στις');
+    },
+    relativeTime: {
+        future: 'σε %s',
+        past: '%s πριν',
+        s: 'λίγα δευτερόλεπτα',
+        ss: '%d δευτερόλεπτα',
+        m: 'ένα λεπτό',
+        mm: '%d λεπτά',
+        h: 'μία ώρα',
+        hh: '%d ώρες',
+        d: 'μία μέρα',
+        dd: '%d μέρες',
+        M: 'ένας μήνας',
+        MM: '%d μήνες',
+        y: 'ένας χρόνος',
+        yy: '%d χρόνια',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}η/,
+    ordinal: '%dη',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4st is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/en-au.js b/backend/node_modules/moment/src/locale/en-au.js
new file mode 100644
index 0000000..301e9db
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/en-au.js
@@ -0,0 +1,68 @@
+//! moment.js locale configuration
+//! locale : English (Australia) [en-au]
+//! author : Jared Morse : https://github.com/jarcoal
+
+import moment from '../moment';
+
+export default moment.defineLocale('en-au', {
+    months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+    weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+        '_'
+    ),
+    weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+    weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+    longDateFormat: {
+        LT: 'h:mm A',
+        LTS: 'h:mm:ss A',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY h:mm A',
+        LLLL: 'dddd, D MMMM YYYY h:mm A',
+    },
+    calendar: {
+        sameDay: '[Today at] LT',
+        nextDay: '[Tomorrow at] LT',
+        nextWeek: 'dddd [at] LT',
+        lastDay: '[Yesterday at] LT',
+        lastWeek: '[Last] dddd [at] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'in %s',
+        past: '%s ago',
+        s: 'a few seconds',
+        ss: '%d seconds',
+        m: 'a minute',
+        mm: '%d minutes',
+        h: 'an hour',
+        hh: '%d hours',
+        d: 'a day',
+        dd: '%d days',
+        M: 'a month',
+        MM: '%d months',
+        y: 'a year',
+        yy: '%d years',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+    ordinal: function (number) {
+        var b = number % 10,
+            output =
+                ~~((number % 100) / 10) === 1
+                    ? 'th'
+                    : b === 1
+                      ? 'st'
+                      : b === 2
+                        ? 'nd'
+                        : b === 3
+                          ? 'rd'
+                          : 'th';
+        return number + output;
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/en-ca.js b/backend/node_modules/moment/src/locale/en-ca.js
new file mode 100644
index 0000000..8099e04
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/en-ca.js
@@ -0,0 +1,64 @@
+//! moment.js locale configuration
+//! locale : English (Canada) [en-ca]
+//! author : Jonathan Abourbih : https://github.com/jonbca
+
+import moment from '../moment';
+
+export default moment.defineLocale('en-ca', {
+    months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+    weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+        '_'
+    ),
+    weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+    weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+    longDateFormat: {
+        LT: 'h:mm A',
+        LTS: 'h:mm:ss A',
+        L: 'YYYY-MM-DD',
+        LL: 'MMMM D, YYYY',
+        LLL: 'MMMM D, YYYY h:mm A',
+        LLLL: 'dddd, MMMM D, YYYY h:mm A',
+    },
+    calendar: {
+        sameDay: '[Today at] LT',
+        nextDay: '[Tomorrow at] LT',
+        nextWeek: 'dddd [at] LT',
+        lastDay: '[Yesterday at] LT',
+        lastWeek: '[Last] dddd [at] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'in %s',
+        past: '%s ago',
+        s: 'a few seconds',
+        ss: '%d seconds',
+        m: 'a minute',
+        mm: '%d minutes',
+        h: 'an hour',
+        hh: '%d hours',
+        d: 'a day',
+        dd: '%d days',
+        M: 'a month',
+        MM: '%d months',
+        y: 'a year',
+        yy: '%d years',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+    ordinal: function (number) {
+        var b = number % 10,
+            output =
+                ~~((number % 100) / 10) === 1
+                    ? 'th'
+                    : b === 1
+                      ? 'st'
+                      : b === 2
+                        ? 'nd'
+                        : b === 3
+                          ? 'rd'
+                          : 'th';
+        return number + output;
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/en-gb.js b/backend/node_modules/moment/src/locale/en-gb.js
new file mode 100644
index 0000000..acd544a
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/en-gb.js
@@ -0,0 +1,68 @@
+//! moment.js locale configuration
+//! locale : English (United Kingdom) [en-gb]
+//! author : Chris Gedrim : https://github.com/chrisgedrim
+
+import moment from '../moment';
+
+export default moment.defineLocale('en-gb', {
+    months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+    weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+        '_'
+    ),
+    weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+    weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Today at] LT',
+        nextDay: '[Tomorrow at] LT',
+        nextWeek: 'dddd [at] LT',
+        lastDay: '[Yesterday at] LT',
+        lastWeek: '[Last] dddd [at] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'in %s',
+        past: '%s ago',
+        s: 'a few seconds',
+        ss: '%d seconds',
+        m: 'a minute',
+        mm: '%d minutes',
+        h: 'an hour',
+        hh: '%d hours',
+        d: 'a day',
+        dd: '%d days',
+        M: 'a month',
+        MM: '%d months',
+        y: 'a year',
+        yy: '%d years',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+    ordinal: function (number) {
+        var b = number % 10,
+            output =
+                ~~((number % 100) / 10) === 1
+                    ? 'th'
+                    : b === 1
+                      ? 'st'
+                      : b === 2
+                        ? 'nd'
+                        : b === 3
+                          ? 'rd'
+                          : 'th';
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/en-ie.js b/backend/node_modules/moment/src/locale/en-ie.js
new file mode 100644
index 0000000..8e79f63
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/en-ie.js
@@ -0,0 +1,68 @@
+//! moment.js locale configuration
+//! locale : English (Ireland) [en-ie]
+//! author : Chris Cartlidge : https://github.com/chriscartlidge
+
+import moment from '../moment';
+
+export default moment.defineLocale('en-ie', {
+    months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+    weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+        '_'
+    ),
+    weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+    weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Today at] LT',
+        nextDay: '[Tomorrow at] LT',
+        nextWeek: 'dddd [at] LT',
+        lastDay: '[Yesterday at] LT',
+        lastWeek: '[Last] dddd [at] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'in %s',
+        past: '%s ago',
+        s: 'a few seconds',
+        ss: '%d seconds',
+        m: 'a minute',
+        mm: '%d minutes',
+        h: 'an hour',
+        hh: '%d hours',
+        d: 'a day',
+        dd: '%d days',
+        M: 'a month',
+        MM: '%d months',
+        y: 'a year',
+        yy: '%d years',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+    ordinal: function (number) {
+        var b = number % 10,
+            output =
+                ~~((number % 100) / 10) === 1
+                    ? 'th'
+                    : b === 1
+                      ? 'st'
+                      : b === 2
+                        ? 'nd'
+                        : b === 3
+                          ? 'rd'
+                          : 'th';
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/en-il.js b/backend/node_modules/moment/src/locale/en-il.js
new file mode 100644
index 0000000..94908df
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/en-il.js
@@ -0,0 +1,64 @@
+//! moment.js locale configuration
+//! locale : English (Israel) [en-il]
+//! author : Chris Gedrim : https://github.com/chrisgedrim
+
+import moment from '../moment';
+
+export default moment.defineLocale('en-il', {
+    months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+    weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+        '_'
+    ),
+    weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+    weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Today at] LT',
+        nextDay: '[Tomorrow at] LT',
+        nextWeek: 'dddd [at] LT',
+        lastDay: '[Yesterday at] LT',
+        lastWeek: '[Last] dddd [at] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'in %s',
+        past: '%s ago',
+        s: 'a few seconds',
+        ss: '%d seconds',
+        m: 'a minute',
+        mm: '%d minutes',
+        h: 'an hour',
+        hh: '%d hours',
+        d: 'a day',
+        dd: '%d days',
+        M: 'a month',
+        MM: '%d months',
+        y: 'a year',
+        yy: '%d years',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+    ordinal: function (number) {
+        var b = number % 10,
+            output =
+                ~~((number % 100) / 10) === 1
+                    ? 'th'
+                    : b === 1
+                      ? 'st'
+                      : b === 2
+                        ? 'nd'
+                        : b === 3
+                          ? 'rd'
+                          : 'th';
+        return number + output;
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/en-in.js b/backend/node_modules/moment/src/locale/en-in.js
new file mode 100644
index 0000000..f685176
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/en-in.js
@@ -0,0 +1,68 @@
+//! moment.js locale configuration
+//! locale : English (India) [en-in]
+//! author : Jatin Agrawal : https://github.com/jatinag22
+
+import moment from '../moment';
+
+export default moment.defineLocale('en-in', {
+    months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+    weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+        '_'
+    ),
+    weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+    weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+    longDateFormat: {
+        LT: 'h:mm A',
+        LTS: 'h:mm:ss A',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY h:mm A',
+        LLLL: 'dddd, D MMMM YYYY h:mm A',
+    },
+    calendar: {
+        sameDay: '[Today at] LT',
+        nextDay: '[Tomorrow at] LT',
+        nextWeek: 'dddd [at] LT',
+        lastDay: '[Yesterday at] LT',
+        lastWeek: '[Last] dddd [at] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'in %s',
+        past: '%s ago',
+        s: 'a few seconds',
+        ss: '%d seconds',
+        m: 'a minute',
+        mm: '%d minutes',
+        h: 'an hour',
+        hh: '%d hours',
+        d: 'a day',
+        dd: '%d days',
+        M: 'a month',
+        MM: '%d months',
+        y: 'a year',
+        yy: '%d years',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+    ordinal: function (number) {
+        var b = number % 10,
+            output =
+                ~~((number % 100) / 10) === 1
+                    ? 'th'
+                    : b === 1
+                      ? 'st'
+                      : b === 2
+                        ? 'nd'
+                        : b === 3
+                          ? 'rd'
+                          : 'th';
+        return number + output;
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 1st is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/en-nz.js b/backend/node_modules/moment/src/locale/en-nz.js
new file mode 100644
index 0000000..66c9bfc
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/en-nz.js
@@ -0,0 +1,68 @@
+//! moment.js locale configuration
+//! locale : English (New Zealand) [en-nz]
+//! author : Luke McGregor : https://github.com/lukemcgregor
+
+import moment from '../moment';
+
+export default moment.defineLocale('en-nz', {
+    months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+    weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+        '_'
+    ),
+    weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+    weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+    longDateFormat: {
+        LT: 'h:mm A',
+        LTS: 'h:mm:ss A',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY h:mm A',
+        LLLL: 'dddd, D MMMM YYYY h:mm A',
+    },
+    calendar: {
+        sameDay: '[Today at] LT',
+        nextDay: '[Tomorrow at] LT',
+        nextWeek: 'dddd [at] LT',
+        lastDay: '[Yesterday at] LT',
+        lastWeek: '[Last] dddd [at] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'in %s',
+        past: '%s ago',
+        s: 'a few seconds',
+        ss: '%d seconds',
+        m: 'a minute',
+        mm: '%d minutes',
+        h: 'an hour',
+        hh: '%d hours',
+        d: 'a day',
+        dd: '%d days',
+        M: 'a month',
+        MM: '%d months',
+        y: 'a year',
+        yy: '%d years',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+    ordinal: function (number) {
+        var b = number % 10,
+            output =
+                ~~((number % 100) / 10) === 1
+                    ? 'th'
+                    : b === 1
+                      ? 'st'
+                      : b === 2
+                        ? 'nd'
+                        : b === 3
+                          ? 'rd'
+                          : 'th';
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/en-sg.js b/backend/node_modules/moment/src/locale/en-sg.js
new file mode 100644
index 0000000..b36bda4
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/en-sg.js
@@ -0,0 +1,68 @@
+//! moment.js locale configuration
+//! locale : English (Singapore) [en-sg]
+//! author : Matthew Castrillon-Madrigal : https://github.com/techdimension
+
+import moment from '../moment';
+
+export default moment.defineLocale('en-sg', {
+    months: 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
+    weekdays: 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+        '_'
+    ),
+    weekdaysShort: 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+    weekdaysMin: 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Today at] LT',
+        nextDay: '[Tomorrow at] LT',
+        nextWeek: 'dddd [at] LT',
+        lastDay: '[Yesterday at] LT',
+        lastWeek: '[Last] dddd [at] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'in %s',
+        past: '%s ago',
+        s: 'a few seconds',
+        ss: '%d seconds',
+        m: 'a minute',
+        mm: '%d minutes',
+        h: 'an hour',
+        hh: '%d hours',
+        d: 'a day',
+        dd: '%d days',
+        M: 'a month',
+        MM: '%d months',
+        y: 'a year',
+        yy: '%d years',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+    ordinal: function (number) {
+        var b = number % 10,
+            output =
+                ~~((number % 100) / 10) === 1
+                    ? 'th'
+                    : b === 1
+                      ? 'st'
+                      : b === 2
+                        ? 'nd'
+                        : b === 3
+                          ? 'rd'
+                          : 'th';
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/eo.js b/backend/node_modules/moment/src/locale/eo.js
new file mode 100644
index 0000000..38d494a
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/eo.js
@@ -0,0 +1,68 @@
+//! moment.js locale configuration
+//! locale : Esperanto [eo]
+//! author : Colin Dean : https://github.com/colindean
+//! author : Mia Nordentoft Imperatori : https://github.com/miestasmia
+//! comment : miestasmia corrected the translation by colindean
+//! comment : Vivakvo corrected the translation by colindean and miestasmia
+
+import moment from '../moment';
+
+export default moment.defineLocale('eo', {
+    months: 'januaro_februaro_marto_aprilo_majo_junio_julio_aŭgusto_septembro_oktobro_novembro_decembro'.split(
+        '_'
+    ),
+    monthsShort: 'jan_feb_mart_apr_maj_jun_jul_aŭg_sept_okt_nov_dec'.split('_'),
+    weekdays: 'dimanĉo_lundo_mardo_merkredo_ĵaŭdo_vendredo_sabato'.split('_'),
+    weekdaysShort: 'dim_lun_mard_merk_ĵaŭ_ven_sab'.split('_'),
+    weekdaysMin: 'di_lu_ma_me_ĵa_ve_sa'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'YYYY-MM-DD',
+        LL: '[la] D[-an de] MMMM, YYYY',
+        LLL: '[la] D[-an de] MMMM, YYYY HH:mm',
+        LLLL: 'dddd[n], [la] D[-an de] MMMM, YYYY HH:mm',
+        llll: 'ddd, [la] D[-an de] MMM, YYYY HH:mm',
+    },
+    meridiemParse: /[ap]\.t\.m/i,
+    isPM: function (input) {
+        return input.charAt(0).toLowerCase() === 'p';
+    },
+    meridiem: function (hours, minutes, isLower) {
+        if (hours > 11) {
+            return isLower ? 'p.t.m.' : 'P.T.M.';
+        } else {
+            return isLower ? 'a.t.m.' : 'A.T.M.';
+        }
+    },
+    calendar: {
+        sameDay: '[Hodiaŭ je] LT',
+        nextDay: '[Morgaŭ je] LT',
+        nextWeek: 'dddd[n je] LT',
+        lastDay: '[Hieraŭ je] LT',
+        lastWeek: '[pasintan] dddd[n je] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'post %s',
+        past: 'antaŭ %s',
+        s: 'kelkaj sekundoj',
+        ss: '%d sekundoj',
+        m: 'unu minuto',
+        mm: '%d minutoj',
+        h: 'unu horo',
+        hh: '%d horoj',
+        d: 'unu tago', //ne 'diurno', ĉar estas uzita por proksimumo
+        dd: '%d tagoj',
+        M: 'unu monato',
+        MM: '%d monatoj',
+        y: 'unu jaro',
+        yy: '%d jaroj',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}a/,
+    ordinal: '%da',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/es-do.js b/backend/node_modules/moment/src/locale/es-do.js
new file mode 100644
index 0000000..8c3ccfd
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/es-do.js
@@ -0,0 +1,108 @@
+//! moment.js locale configuration
+//! locale : Spanish (Dominican Republic) [es-do]
+
+import moment from '../moment';
+
+var monthsShortDot =
+        'ene._feb._mar._abr._may._jun._jul._ago._sep._oct._nov._dic.'.split(
+            '_'
+        ),
+    monthsShort = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_'),
+    monthsParse = [
+        /^ene/i,
+        /^feb/i,
+        /^mar/i,
+        /^abr/i,
+        /^may/i,
+        /^jun/i,
+        /^jul/i,
+        /^ago/i,
+        /^sep/i,
+        /^oct/i,
+        /^nov/i,
+        /^dic/i,
+    ],
+    monthsRegex =
+        /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre|ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i;
+
+export default moment.defineLocale('es-do', {
+    months: 'enero_febrero_marzo_abril_mayo_junio_julio_agosto_septiembre_octubre_noviembre_diciembre'.split(
+        '_'
+    ),
+    monthsShort: function (m, format) {
+        if (!m) {
+            return monthsShortDot;
+        } else if (/-MMM-/.test(format)) {
+            return monthsShort[m.month()];
+        } else {
+            return monthsShortDot[m.month()];
+        }
+    },
+    monthsRegex: monthsRegex,
+    monthsShortRegex: monthsRegex,
+    monthsStrictRegex:
+        /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre)/i,
+    monthsShortStrictRegex:
+        /^(ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i,
+    monthsParse: monthsParse,
+    longMonthsParse: monthsParse,
+    shortMonthsParse: monthsParse,
+    weekdays: 'domingo_lunes_martes_miércoles_jueves_viernes_sábado'.split('_'),
+    weekdaysShort: 'dom._lun._mar._mié._jue._vie._sáb.'.split('_'),
+    weekdaysMin: 'do_lu_ma_mi_ju_vi_sá'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'h:mm A',
+        LTS: 'h:mm:ss A',
+        L: 'DD/MM/YYYY',
+        LL: 'D [de] MMMM [de] YYYY',
+        LLL: 'D [de] MMMM [de] YYYY h:mm A',
+        LLLL: 'dddd, D [de] MMMM [de] YYYY h:mm A',
+    },
+    calendar: {
+        sameDay: function () {
+            return '[hoy a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        nextDay: function () {
+            return '[mañana a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        nextWeek: function () {
+            return 'dddd [a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        lastDay: function () {
+            return '[ayer a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        lastWeek: function () {
+            return (
+                '[el] dddd [pasado a la' +
+                (this.hours() !== 1 ? 's' : '') +
+                '] LT'
+            );
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'en %s',
+        past: 'hace %s',
+        s: 'unos segundos',
+        ss: '%d segundos',
+        m: 'un minuto',
+        mm: '%d minutos',
+        h: 'una hora',
+        hh: '%d horas',
+        d: 'un día',
+        dd: '%d días',
+        w: 'una semana',
+        ww: '%d semanas',
+        M: 'un mes',
+        MM: '%d meses',
+        y: 'un año',
+        yy: '%d años',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}º/,
+    ordinal: '%dº',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/es-mx.js b/backend/node_modules/moment/src/locale/es-mx.js
new file mode 100644
index 0000000..43dd7cc
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/es-mx.js
@@ -0,0 +1,110 @@
+//! moment.js locale configuration
+//! locale : Spanish (Mexico) [es-mx]
+//! author : JC Franco : https://github.com/jcfranco
+
+import moment from '../moment';
+
+var monthsShortDot =
+        'ene._feb._mar._abr._may._jun._jul._ago._sep._oct._nov._dic.'.split(
+            '_'
+        ),
+    monthsShort = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_'),
+    monthsParse = [
+        /^ene/i,
+        /^feb/i,
+        /^mar/i,
+        /^abr/i,
+        /^may/i,
+        /^jun/i,
+        /^jul/i,
+        /^ago/i,
+        /^sep/i,
+        /^oct/i,
+        /^nov/i,
+        /^dic/i,
+    ],
+    monthsRegex =
+        /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre|ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i;
+
+export default moment.defineLocale('es-mx', {
+    months: 'enero_febrero_marzo_abril_mayo_junio_julio_agosto_septiembre_octubre_noviembre_diciembre'.split(
+        '_'
+    ),
+    monthsShort: function (m, format) {
+        if (!m) {
+            return monthsShortDot;
+        } else if (/-MMM-/.test(format)) {
+            return monthsShort[m.month()];
+        } else {
+            return monthsShortDot[m.month()];
+        }
+    },
+    monthsRegex: monthsRegex,
+    monthsShortRegex: monthsRegex,
+    monthsStrictRegex:
+        /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre)/i,
+    monthsShortStrictRegex:
+        /^(ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i,
+    monthsParse: monthsParse,
+    longMonthsParse: monthsParse,
+    shortMonthsParse: monthsParse,
+    weekdays: 'domingo_lunes_martes_miércoles_jueves_viernes_sábado'.split('_'),
+    weekdaysShort: 'dom._lun._mar._mié._jue._vie._sáb.'.split('_'),
+    weekdaysMin: 'do_lu_ma_mi_ju_vi_sá'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D [de] MMMM [de] YYYY',
+        LLL: 'D [de] MMMM [de] YYYY H:mm',
+        LLLL: 'dddd, D [de] MMMM [de] YYYY H:mm',
+    },
+    calendar: {
+        sameDay: function () {
+            return '[hoy a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        nextDay: function () {
+            return '[mañana a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        nextWeek: function () {
+            return 'dddd [a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        lastDay: function () {
+            return '[ayer a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        lastWeek: function () {
+            return (
+                '[el] dddd [pasado a la' +
+                (this.hours() !== 1 ? 's' : '') +
+                '] LT'
+            );
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'en %s',
+        past: 'hace %s',
+        s: 'unos segundos',
+        ss: '%d segundos',
+        m: 'un minuto',
+        mm: '%d minutos',
+        h: 'una hora',
+        hh: '%d horas',
+        d: 'un día',
+        dd: '%d días',
+        w: 'una semana',
+        ww: '%d semanas',
+        M: 'un mes',
+        MM: '%d meses',
+        y: 'un año',
+        yy: '%d años',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}º/,
+    ordinal: '%dº',
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+    invalidDate: 'Fecha inválida',
+});
diff --git a/backend/node_modules/moment/src/locale/es-us.js b/backend/node_modules/moment/src/locale/es-us.js
new file mode 100644
index 0000000..bac8cd8
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/es-us.js
@@ -0,0 +1,110 @@
+//! moment.js locale configuration
+//! locale : Spanish (United States) [es-us]
+//! author : bustta : https://github.com/bustta
+//! author : chrisrodz : https://github.com/chrisrodz
+
+import moment from '../moment';
+
+var monthsShortDot =
+        'ene._feb._mar._abr._may._jun._jul._ago._sep._oct._nov._dic.'.split(
+            '_'
+        ),
+    monthsShort = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_'),
+    monthsParse = [
+        /^ene/i,
+        /^feb/i,
+        /^mar/i,
+        /^abr/i,
+        /^may/i,
+        /^jun/i,
+        /^jul/i,
+        /^ago/i,
+        /^sep/i,
+        /^oct/i,
+        /^nov/i,
+        /^dic/i,
+    ],
+    monthsRegex =
+        /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre|ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i;
+
+export default moment.defineLocale('es-us', {
+    months: 'enero_febrero_marzo_abril_mayo_junio_julio_agosto_septiembre_octubre_noviembre_diciembre'.split(
+        '_'
+    ),
+    monthsShort: function (m, format) {
+        if (!m) {
+            return monthsShortDot;
+        } else if (/-MMM-/.test(format)) {
+            return monthsShort[m.month()];
+        } else {
+            return monthsShortDot[m.month()];
+        }
+    },
+    monthsRegex: monthsRegex,
+    monthsShortRegex: monthsRegex,
+    monthsStrictRegex:
+        /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre)/i,
+    monthsShortStrictRegex:
+        /^(ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i,
+    monthsParse: monthsParse,
+    longMonthsParse: monthsParse,
+    shortMonthsParse: monthsParse,
+    weekdays: 'domingo_lunes_martes_miércoles_jueves_viernes_sábado'.split('_'),
+    weekdaysShort: 'dom._lun._mar._mié._jue._vie._sáb.'.split('_'),
+    weekdaysMin: 'do_lu_ma_mi_ju_vi_sá'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'h:mm A',
+        LTS: 'h:mm:ss A',
+        L: 'MM/DD/YYYY',
+        LL: 'D [de] MMMM [de] YYYY',
+        LLL: 'D [de] MMMM [de] YYYY h:mm A',
+        LLLL: 'dddd, D [de] MMMM [de] YYYY h:mm A',
+    },
+    calendar: {
+        sameDay: function () {
+            return '[hoy a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        nextDay: function () {
+            return '[mañana a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        nextWeek: function () {
+            return 'dddd [a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        lastDay: function () {
+            return '[ayer a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        lastWeek: function () {
+            return (
+                '[el] dddd [pasado a la' +
+                (this.hours() !== 1 ? 's' : '') +
+                '] LT'
+            );
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'en %s',
+        past: 'hace %s',
+        s: 'unos segundos',
+        ss: '%d segundos',
+        m: 'un minuto',
+        mm: '%d minutos',
+        h: 'una hora',
+        hh: '%d horas',
+        d: 'un día',
+        dd: '%d días',
+        w: 'una semana',
+        ww: '%d semanas',
+        M: 'un mes',
+        MM: '%d meses',
+        y: 'un año',
+        yy: '%d años',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}º/,
+    ordinal: '%dº',
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/es.js b/backend/node_modules/moment/src/locale/es.js
new file mode 100644
index 0000000..a3428ad
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/es.js
@@ -0,0 +1,110 @@
+//! moment.js locale configuration
+//! locale : Spanish [es]
+//! author : Julio Napurí : https://github.com/julionc
+
+import moment from '../moment';
+
+var monthsShortDot =
+        'ene._feb._mar._abr._may._jun._jul._ago._sep._oct._nov._dic.'.split(
+            '_'
+        ),
+    monthsShort = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_'),
+    monthsParse = [
+        /^ene/i,
+        /^feb/i,
+        /^mar/i,
+        /^abr/i,
+        /^may/i,
+        /^jun/i,
+        /^jul/i,
+        /^ago/i,
+        /^sep/i,
+        /^oct/i,
+        /^nov/i,
+        /^dic/i,
+    ],
+    monthsRegex =
+        /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre|ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i;
+
+export default moment.defineLocale('es', {
+    months: 'enero_febrero_marzo_abril_mayo_junio_julio_agosto_septiembre_octubre_noviembre_diciembre'.split(
+        '_'
+    ),
+    monthsShort: function (m, format) {
+        if (!m) {
+            return monthsShortDot;
+        } else if (/-MMM-/.test(format)) {
+            return monthsShort[m.month()];
+        } else {
+            return monthsShortDot[m.month()];
+        }
+    },
+    monthsRegex: monthsRegex,
+    monthsShortRegex: monthsRegex,
+    monthsStrictRegex:
+        /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre)/i,
+    monthsShortStrictRegex:
+        /^(ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i,
+    monthsParse: monthsParse,
+    longMonthsParse: monthsParse,
+    shortMonthsParse: monthsParse,
+    weekdays: 'domingo_lunes_martes_miércoles_jueves_viernes_sábado'.split('_'),
+    weekdaysShort: 'dom._lun._mar._mié._jue._vie._sáb.'.split('_'),
+    weekdaysMin: 'do_lu_ma_mi_ju_vi_sá'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D [de] MMMM [de] YYYY',
+        LLL: 'D [de] MMMM [de] YYYY H:mm',
+        LLLL: 'dddd, D [de] MMMM [de] YYYY H:mm',
+    },
+    calendar: {
+        sameDay: function () {
+            return '[hoy a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        nextDay: function () {
+            return '[mañana a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        nextWeek: function () {
+            return 'dddd [a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        lastDay: function () {
+            return '[ayer a la' + (this.hours() !== 1 ? 's' : '') + '] LT';
+        },
+        lastWeek: function () {
+            return (
+                '[el] dddd [pasado a la' +
+                (this.hours() !== 1 ? 's' : '') +
+                '] LT'
+            );
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'en %s',
+        past: 'hace %s',
+        s: 'unos segundos',
+        ss: '%d segundos',
+        m: 'un minuto',
+        mm: '%d minutos',
+        h: 'una hora',
+        hh: '%d horas',
+        d: 'un día',
+        dd: '%d días',
+        w: 'una semana',
+        ww: '%d semanas',
+        M: 'un mes',
+        MM: '%d meses',
+        y: 'un año',
+        yy: '%d años',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}º/,
+    ordinal: '%dº',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+    invalidDate: 'Fecha inválida',
+});
diff --git a/backend/node_modules/moment/src/locale/et.js b/backend/node_modules/moment/src/locale/et.js
new file mode 100644
index 0000000..5da4ec4
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/et.js
@@ -0,0 +1,78 @@
+//! moment.js locale configuration
+//! locale : Estonian [et]
+//! author : Henry Kehlmann : https://github.com/madhenry
+//! improvements : Illimar Tambek : https://github.com/ragulka
+
+import moment from '../moment';
+
+function processRelativeTime(number, withoutSuffix, key, isFuture) {
+    var format = {
+        s: ['mõne sekundi', 'mõni sekund', 'paar sekundit'],
+        ss: [number + 'sekundi', number + 'sekundit'],
+        m: ['ühe minuti', 'üks minut'],
+        mm: [number + ' minuti', number + ' minutit'],
+        h: ['ühe tunni', 'tund aega', 'üks tund'],
+        hh: [number + ' tunni', number + ' tundi'],
+        d: ['ühe päeva', 'üks päev'],
+        M: ['kuu aja', 'kuu aega', 'üks kuu'],
+        MM: [number + ' kuu', number + ' kuud'],
+        y: ['ühe aasta', 'aasta', 'üks aasta'],
+        yy: [number + ' aasta', number + ' aastat'],
+    };
+    if (withoutSuffix) {
+        return format[key][2] ? format[key][2] : format[key][1];
+    }
+    return isFuture ? format[key][0] : format[key][1];
+}
+
+export default moment.defineLocale('et', {
+    months: 'jaanuar_veebruar_märts_aprill_mai_juuni_juuli_august_september_oktoober_november_detsember'.split(
+        '_'
+    ),
+    monthsShort:
+        'jaan_veebr_märts_apr_mai_juuni_juuli_aug_sept_okt_nov_dets'.split('_'),
+    weekdays:
+        'pühapäev_esmaspäev_teisipäev_kolmapäev_neljapäev_reede_laupäev'.split(
+            '_'
+        ),
+    weekdaysShort: 'P_E_T_K_N_R_L'.split('_'),
+    weekdaysMin: 'P_E_T_K_N_R_L'.split('_'),
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY H:mm',
+        LLLL: 'dddd, D. MMMM YYYY H:mm',
+    },
+    calendar: {
+        sameDay: '[Täna,] LT',
+        nextDay: '[Homme,] LT',
+        nextWeek: '[Järgmine] dddd LT',
+        lastDay: '[Eile,] LT',
+        lastWeek: '[Eelmine] dddd LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s pärast',
+        past: '%s tagasi',
+        s: processRelativeTime,
+        ss: processRelativeTime,
+        m: processRelativeTime,
+        mm: processRelativeTime,
+        h: processRelativeTime,
+        hh: processRelativeTime,
+        d: processRelativeTime,
+        dd: '%d päeva',
+        M: processRelativeTime,
+        MM: processRelativeTime,
+        y: processRelativeTime,
+        yy: processRelativeTime,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/eu.js b/backend/node_modules/moment/src/locale/eu.js
new file mode 100644
index 0000000..261a17b
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/eu.js
@@ -0,0 +1,65 @@
+//! moment.js locale configuration
+//! locale : Basque [eu]
+//! author : Eneko Illarramendi : https://github.com/eillarra
+
+import moment from '../moment';
+
+export default moment.defineLocale('eu', {
+    months: 'urtarrila_otsaila_martxoa_apirila_maiatza_ekaina_uztaila_abuztua_iraila_urria_azaroa_abendua'.split(
+        '_'
+    ),
+    monthsShort:
+        'urt._ots._mar._api._mai._eka._uzt._abu._ira._urr._aza._abe.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays:
+        'igandea_astelehena_asteartea_asteazkena_osteguna_ostirala_larunbata'.split(
+            '_'
+        ),
+    weekdaysShort: 'ig._al._ar._az._og._ol._lr.'.split('_'),
+    weekdaysMin: 'ig_al_ar_az_og_ol_lr'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'YYYY-MM-DD',
+        LL: 'YYYY[ko] MMMM[ren] D[a]',
+        LLL: 'YYYY[ko] MMMM[ren] D[a] HH:mm',
+        LLLL: 'dddd, YYYY[ko] MMMM[ren] D[a] HH:mm',
+        l: 'YYYY-M-D',
+        ll: 'YYYY[ko] MMM D[a]',
+        lll: 'YYYY[ko] MMM D[a] HH:mm',
+        llll: 'ddd, YYYY[ko] MMM D[a] HH:mm',
+    },
+    calendar: {
+        sameDay: '[gaur] LT[etan]',
+        nextDay: '[bihar] LT[etan]',
+        nextWeek: 'dddd LT[etan]',
+        lastDay: '[atzo] LT[etan]',
+        lastWeek: '[aurreko] dddd LT[etan]',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s barru',
+        past: 'duela %s',
+        s: 'segundo batzuk',
+        ss: '%d segundo',
+        m: 'minutu bat',
+        mm: '%d minutu',
+        h: 'ordu bat',
+        hh: '%d ordu',
+        d: 'egun bat',
+        dd: '%d egun',
+        M: 'hilabete bat',
+        MM: '%d hilabete',
+        y: 'urte bat',
+        yy: '%d urte',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/fa.js b/backend/node_modules/moment/src/locale/fa.js
new file mode 100644
index 0000000..52ffb72
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/fa.js
@@ -0,0 +1,113 @@
+//! moment.js locale configuration
+//! locale : Persian [fa]
+//! author : Ebrahim Byagowi : https://github.com/ebraminio
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '۱',
+        2: '۲',
+        3: '۳',
+        4: '۴',
+        5: '۵',
+        6: '۶',
+        7: '۷',
+        8: '۸',
+        9: '۹',
+        0: '۰',
+    },
+    numberMap = {
+        '۱': '1',
+        '۲': '2',
+        '۳': '3',
+        '۴': '4',
+        '۵': '5',
+        '۶': '6',
+        '۷': '7',
+        '۸': '8',
+        '۹': '9',
+        '۰': '0',
+    };
+
+export default moment.defineLocale('fa', {
+    months: 'ژانویه_فوریه_مارس_آوریل_مه_ژوئن_ژوئیه_اوت_سپتامبر_اکتبر_نوامبر_دسامبر'.split(
+        '_'
+    ),
+    monthsShort:
+        'ژانویه_فوریه_مارس_آوریل_مه_ژوئن_ژوئیه_اوت_سپتامبر_اکتبر_نوامبر_دسامبر'.split(
+            '_'
+        ),
+    weekdays:
+        'یک\u200cشنبه_دوشنبه_سه\u200cشنبه_چهارشنبه_پنج\u200cشنبه_جمعه_شنبه'.split(
+            '_'
+        ),
+    weekdaysShort:
+        'یک\u200cشنبه_دوشنبه_سه\u200cشنبه_چهارشنبه_پنج\u200cشنبه_جمعه_شنبه'.split(
+            '_'
+        ),
+    weekdaysMin: 'ی_د_س_چ_پ_ج_ش'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    meridiemParse: /قبل از ظهر|بعد از ظهر/,
+    isPM: function (input) {
+        return /بعد از ظهر/.test(input);
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'قبل از ظهر';
+        } else {
+            return 'بعد از ظهر';
+        }
+    },
+    calendar: {
+        sameDay: '[امروز ساعت] LT',
+        nextDay: '[فردا ساعت] LT',
+        nextWeek: 'dddd [ساعت] LT',
+        lastDay: '[دیروز ساعت] LT',
+        lastWeek: 'dddd [پیش] [ساعت] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'در %s',
+        past: '%s پیش',
+        s: 'چند ثانیه',
+        ss: '%d ثانیه',
+        m: 'یک دقیقه',
+        mm: '%d دقیقه',
+        h: 'یک ساعت',
+        hh: '%d ساعت',
+        d: 'یک روز',
+        dd: '%d روز',
+        M: 'یک ماه',
+        MM: '%d ماه',
+        y: 'یک سال',
+        yy: '%d سال',
+    },
+    preparse: function (string) {
+        return string
+            .replace(/[۰-۹]/g, function (match) {
+                return numberMap[match];
+            })
+            .replace(/،/g, ',');
+    },
+    postformat: function (string) {
+        return string
+            .replace(/\d/g, function (match) {
+                return symbolMap[match];
+            })
+            .replace(/,/g, '،');
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}م/,
+    ordinal: '%dم',
+    week: {
+        dow: 6, // Saturday is the first day of the week.
+        doy: 12, // The week that contains Jan 12th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/fi.js b/backend/node_modules/moment/src/locale/fi.js
new file mode 100644
index 0000000..2e20bff
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/fi.js
@@ -0,0 +1,124 @@
+//! moment.js locale configuration
+//! locale : Finnish [fi]
+//! author : Tarmo Aidantausta : https://github.com/bleadof
+
+import moment from '../moment';
+
+var numbersPast =
+        'nolla yksi kaksi kolme neljä viisi kuusi seitsemän kahdeksan yhdeksän'.split(
+            ' '
+        ),
+    numbersFuture = [
+        'nolla',
+        'yhden',
+        'kahden',
+        'kolmen',
+        'neljän',
+        'viiden',
+        'kuuden',
+        numbersPast[7],
+        numbersPast[8],
+        numbersPast[9],
+    ];
+function translate(number, withoutSuffix, key, isFuture) {
+    var result = '';
+    switch (key) {
+        case 's':
+            return isFuture ? 'muutaman sekunnin' : 'muutama sekunti';
+        case 'ss':
+            result = isFuture ? 'sekunnin' : 'sekuntia';
+            break;
+        case 'm':
+            return isFuture ? 'minuutin' : 'minuutti';
+        case 'mm':
+            result = isFuture ? 'minuutin' : 'minuuttia';
+            break;
+        case 'h':
+            return isFuture ? 'tunnin' : 'tunti';
+        case 'hh':
+            result = isFuture ? 'tunnin' : 'tuntia';
+            break;
+        case 'd':
+            return isFuture ? 'päivän' : 'päivä';
+        case 'dd':
+            result = isFuture ? 'päivän' : 'päivää';
+            break;
+        case 'M':
+            return isFuture ? 'kuukauden' : 'kuukausi';
+        case 'MM':
+            result = isFuture ? 'kuukauden' : 'kuukautta';
+            break;
+        case 'y':
+            return isFuture ? 'vuoden' : 'vuosi';
+        case 'yy':
+            result = isFuture ? 'vuoden' : 'vuotta';
+            break;
+    }
+    result = verbalNumber(number, isFuture) + ' ' + result;
+    return result;
+}
+function verbalNumber(number, isFuture) {
+    return number < 10
+        ? isFuture
+            ? numbersFuture[number]
+            : numbersPast[number]
+        : number;
+}
+
+export default moment.defineLocale('fi', {
+    months: 'tammikuu_helmikuu_maaliskuu_huhtikuu_toukokuu_kesäkuu_heinäkuu_elokuu_syyskuu_lokakuu_marraskuu_joulukuu'.split(
+        '_'
+    ),
+    monthsShort:
+        'tammi_helmi_maalis_huhti_touko_kesä_heinä_elo_syys_loka_marras_joulu'.split(
+            '_'
+        ),
+    weekdays:
+        'sunnuntai_maanantai_tiistai_keskiviikko_torstai_perjantai_lauantai'.split(
+            '_'
+        ),
+    weekdaysShort: 'su_ma_ti_ke_to_pe_la'.split('_'),
+    weekdaysMin: 'su_ma_ti_ke_to_pe_la'.split('_'),
+    longDateFormat: {
+        LT: 'HH.mm',
+        LTS: 'HH.mm.ss',
+        L: 'DD.MM.YYYY',
+        LL: 'Do MMMM[ta] YYYY',
+        LLL: 'Do MMMM[ta] YYYY, [klo] HH.mm',
+        LLLL: 'dddd, Do MMMM[ta] YYYY, [klo] HH.mm',
+        l: 'D.M.YYYY',
+        ll: 'Do MMM YYYY',
+        lll: 'Do MMM YYYY, [klo] HH.mm',
+        llll: 'ddd, Do MMM YYYY, [klo] HH.mm',
+    },
+    calendar: {
+        sameDay: '[tänään] [klo] LT',
+        nextDay: '[huomenna] [klo] LT',
+        nextWeek: 'dddd [klo] LT',
+        lastDay: '[eilen] [klo] LT',
+        lastWeek: '[viime] dddd[na] [klo] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s päästä',
+        past: '%s sitten',
+        s: translate,
+        ss: translate,
+        m: translate,
+        mm: translate,
+        h: translate,
+        hh: translate,
+        d: translate,
+        dd: translate,
+        M: translate,
+        MM: translate,
+        y: translate,
+        yy: translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/fil.js b/backend/node_modules/moment/src/locale/fil.js
new file mode 100644
index 0000000..e0447aa
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/fil.js
@@ -0,0 +1,58 @@
+//! moment.js locale configuration
+//! locale : Filipino [fil]
+//! author : Dan Hagman : https://github.com/hagmandan
+//! author : Matthew Co : https://github.com/matthewdeeco
+
+import moment from '../moment';
+
+export default moment.defineLocale('fil', {
+    months: 'Enero_Pebrero_Marso_Abril_Mayo_Hunyo_Hulyo_Agosto_Setyembre_Oktubre_Nobyembre_Disyembre'.split(
+        '_'
+    ),
+    monthsShort: 'Ene_Peb_Mar_Abr_May_Hun_Hul_Ago_Set_Okt_Nob_Dis'.split('_'),
+    weekdays: 'Linggo_Lunes_Martes_Miyerkules_Huwebes_Biyernes_Sabado'.split(
+        '_'
+    ),
+    weekdaysShort: 'Lin_Lun_Mar_Miy_Huw_Biy_Sab'.split('_'),
+    weekdaysMin: 'Li_Lu_Ma_Mi_Hu_Bi_Sab'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'MM/D/YYYY',
+        LL: 'MMMM D, YYYY',
+        LLL: 'MMMM D, YYYY HH:mm',
+        LLLL: 'dddd, MMMM DD, YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: 'LT [ngayong araw]',
+        nextDay: '[Bukas ng] LT',
+        nextWeek: 'LT [sa susunod na] dddd',
+        lastDay: 'LT [kahapon]',
+        lastWeek: 'LT [noong nakaraang] dddd',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'sa loob ng %s',
+        past: '%s ang nakalipas',
+        s: 'ilang segundo',
+        ss: '%d segundo',
+        m: 'isang minuto',
+        mm: '%d minuto',
+        h: 'isang oras',
+        hh: '%d oras',
+        d: 'isang araw',
+        dd: '%d araw',
+        M: 'isang buwan',
+        MM: '%d buwan',
+        y: 'isang taon',
+        yy: '%d taon',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}/,
+    ordinal: function (number) {
+        return number;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/fo.js b/backend/node_modules/moment/src/locale/fo.js
new file mode 100644
index 0000000..c8fd0bc
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/fo.js
@@ -0,0 +1,57 @@
+//! moment.js locale configuration
+//! locale : Faroese [fo]
+//! author : Ragnar Johannesen : https://github.com/ragnar123
+//! author : Kristian Sakarisson : https://github.com/sakarisson
+
+import moment from '../moment';
+
+export default moment.defineLocale('fo', {
+    months: 'januar_februar_mars_apríl_mai_juni_juli_august_september_oktober_november_desember'.split(
+        '_'
+    ),
+    monthsShort: 'jan_feb_mar_apr_mai_jun_jul_aug_sep_okt_nov_des'.split('_'),
+    weekdays:
+        'sunnudagur_mánadagur_týsdagur_mikudagur_hósdagur_fríggjadagur_leygardagur'.split(
+            '_'
+        ),
+    weekdaysShort: 'sun_mán_týs_mik_hós_frí_ley'.split('_'),
+    weekdaysMin: 'su_má_tý_mi_hó_fr_le'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D. MMMM, YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Í dag kl.] LT',
+        nextDay: '[Í morgin kl.] LT',
+        nextWeek: 'dddd [kl.] LT',
+        lastDay: '[Í gjár kl.] LT',
+        lastWeek: '[síðstu] dddd [kl] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'um %s',
+        past: '%s síðani',
+        s: 'fá sekund',
+        ss: '%d sekundir',
+        m: 'ein minuttur',
+        mm: '%d minuttir',
+        h: 'ein tími',
+        hh: '%d tímar',
+        d: 'ein dagur',
+        dd: '%d dagar',
+        M: 'ein mánaður',
+        MM: '%d mánaðir',
+        y: 'eitt ár',
+        yy: '%d ár',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/fr-ca.js b/backend/node_modules/moment/src/locale/fr-ca.js
new file mode 100644
index 0000000..6187291
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/fr-ca.js
@@ -0,0 +1,70 @@
+//! moment.js locale configuration
+//! locale : French (Canada) [fr-ca]
+//! author : Jonathan Abourbih : https://github.com/jonbca
+
+import moment from '../moment';
+
+export default moment.defineLocale('fr-ca', {
+    months: 'janvier_février_mars_avril_mai_juin_juillet_août_septembre_octobre_novembre_décembre'.split(
+        '_'
+    ),
+    monthsShort:
+        'janv._févr._mars_avr._mai_juin_juil._août_sept._oct._nov._déc.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'dimanche_lundi_mardi_mercredi_jeudi_vendredi_samedi'.split('_'),
+    weekdaysShort: 'dim._lun._mar._mer._jeu._ven._sam.'.split('_'),
+    weekdaysMin: 'di_lu_ma_me_je_ve_sa'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'YYYY-MM-DD',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Aujourd’hui à] LT',
+        nextDay: '[Demain à] LT',
+        nextWeek: 'dddd [à] LT',
+        lastDay: '[Hier à] LT',
+        lastWeek: 'dddd [dernier à] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'dans %s',
+        past: 'il y a %s',
+        s: 'quelques secondes',
+        ss: '%d secondes',
+        m: 'une minute',
+        mm: '%d minutes',
+        h: 'une heure',
+        hh: '%d heures',
+        d: 'un jour',
+        dd: '%d jours',
+        M: 'un mois',
+        MM: '%d mois',
+        y: 'un an',
+        yy: '%d ans',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(er|e)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            // Words with masculine grammatical gender: mois, trimestre, jour
+            default:
+            case 'M':
+            case 'Q':
+            case 'D':
+            case 'DDD':
+            case 'd':
+                return number + (number === 1 ? 'er' : 'e');
+
+            // Words with feminine grammatical gender: semaine
+            case 'w':
+            case 'W':
+                return number + (number === 1 ? 're' : 'e');
+        }
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/fr-ch.js b/backend/node_modules/moment/src/locale/fr-ch.js
new file mode 100644
index 0000000..2cc90d8
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/fr-ch.js
@@ -0,0 +1,74 @@
+//! moment.js locale configuration
+//! locale : French (Switzerland) [fr-ch]
+//! author : Gaspard Bucher : https://github.com/gaspard
+
+import moment from '../moment';
+
+export default moment.defineLocale('fr-ch', {
+    months: 'janvier_février_mars_avril_mai_juin_juillet_août_septembre_octobre_novembre_décembre'.split(
+        '_'
+    ),
+    monthsShort:
+        'janv._févr._mars_avr._mai_juin_juil._août_sept._oct._nov._déc.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'dimanche_lundi_mardi_mercredi_jeudi_vendredi_samedi'.split('_'),
+    weekdaysShort: 'dim._lun._mar._mer._jeu._ven._sam.'.split('_'),
+    weekdaysMin: 'di_lu_ma_me_je_ve_sa'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Aujourd’hui à] LT',
+        nextDay: '[Demain à] LT',
+        nextWeek: 'dddd [à] LT',
+        lastDay: '[Hier à] LT',
+        lastWeek: 'dddd [dernier à] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'dans %s',
+        past: 'il y a %s',
+        s: 'quelques secondes',
+        ss: '%d secondes',
+        m: 'une minute',
+        mm: '%d minutes',
+        h: 'une heure',
+        hh: '%d heures',
+        d: 'un jour',
+        dd: '%d jours',
+        M: 'un mois',
+        MM: '%d mois',
+        y: 'un an',
+        yy: '%d ans',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(er|e)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            // Words with masculine grammatical gender: mois, trimestre, jour
+            default:
+            case 'M':
+            case 'Q':
+            case 'D':
+            case 'DDD':
+            case 'd':
+                return number + (number === 1 ? 'er' : 'e');
+
+            // Words with feminine grammatical gender: semaine
+            case 'w':
+            case 'W':
+                return number + (number === 1 ? 're' : 'e');
+        }
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/fr.js b/backend/node_modules/moment/src/locale/fr.js
new file mode 100644
index 0000000..a3afb4b
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/fr.js
@@ -0,0 +1,108 @@
+//! moment.js locale configuration
+//! locale : French [fr]
+//! author : John Fischer : https://github.com/jfroffice
+
+import moment from '../moment';
+
+var monthsStrictRegex =
+        /^(janvier|février|mars|avril|mai|juin|juillet|août|septembre|octobre|novembre|décembre)/i,
+    monthsShortStrictRegex =
+        /(janv\.?|févr\.?|mars|avr\.?|mai|juin|juil\.?|août|sept\.?|oct\.?|nov\.?|déc\.?)/i,
+    monthsRegex =
+        /(janv\.?|févr\.?|mars|avr\.?|mai|juin|juil\.?|août|sept\.?|oct\.?|nov\.?|déc\.?|janvier|février|mars|avril|mai|juin|juillet|août|septembre|octobre|novembre|décembre)/i,
+    monthsParse = [
+        /^janv/i,
+        /^févr/i,
+        /^mars/i,
+        /^avr/i,
+        /^mai/i,
+        /^juin/i,
+        /^juil/i,
+        /^août/i,
+        /^sept/i,
+        /^oct/i,
+        /^nov/i,
+        /^déc/i,
+    ];
+
+export default moment.defineLocale('fr', {
+    months: 'janvier_février_mars_avril_mai_juin_juillet_août_septembre_octobre_novembre_décembre'.split(
+        '_'
+    ),
+    monthsShort:
+        'janv._févr._mars_avr._mai_juin_juil._août_sept._oct._nov._déc.'.split(
+            '_'
+        ),
+    monthsRegex: monthsRegex,
+    monthsShortRegex: monthsRegex,
+    monthsStrictRegex: monthsStrictRegex,
+    monthsShortStrictRegex: monthsShortStrictRegex,
+    monthsParse: monthsParse,
+    longMonthsParse: monthsParse,
+    shortMonthsParse: monthsParse,
+    weekdays: 'dimanche_lundi_mardi_mercredi_jeudi_vendredi_samedi'.split('_'),
+    weekdaysShort: 'dim._lun._mar._mer._jeu._ven._sam.'.split('_'),
+    weekdaysMin: 'di_lu_ma_me_je_ve_sa'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Aujourd’hui à] LT',
+        nextDay: '[Demain à] LT',
+        nextWeek: 'dddd [à] LT',
+        lastDay: '[Hier à] LT',
+        lastWeek: 'dddd [dernier à] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'dans %s',
+        past: 'il y a %s',
+        s: 'quelques secondes',
+        ss: '%d secondes',
+        m: 'une minute',
+        mm: '%d minutes',
+        h: 'une heure',
+        hh: '%d heures',
+        d: 'un jour',
+        dd: '%d jours',
+        w: 'une semaine',
+        ww: '%d semaines',
+        M: 'un mois',
+        MM: '%d mois',
+        y: 'un an',
+        yy: '%d ans',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(er|)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            // TODO: Return 'e' when day of month > 1. Move this case inside
+            // block for masculine words below.
+            // See https://github.com/moment/moment/issues/3375
+            case 'D':
+                return number + (number === 1 ? 'er' : '');
+
+            // Words with masculine grammatical gender: mois, trimestre, jour
+            default:
+            case 'M':
+            case 'Q':
+            case 'DDD':
+            case 'd':
+                return number + (number === 1 ? 'er' : 'e');
+
+            // Words with feminine grammatical gender: semaine
+            case 'w':
+            case 'W':
+                return number + (number === 1 ? 're' : 'e');
+        }
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/fy.js b/backend/node_modules/moment/src/locale/fy.js
new file mode 100644
index 0000000..4844587
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/fy.js
@@ -0,0 +1,75 @@
+//! moment.js locale configuration
+//! locale : Frisian [fy]
+//! author : Robin van der Vliet : https://github.com/robin0van0der0v
+
+import moment from '../moment';
+
+var monthsShortWithDots =
+        'jan._feb._mrt._apr._mai_jun._jul._aug._sep._okt._nov._des.'.split('_'),
+    monthsShortWithoutDots =
+        'jan_feb_mrt_apr_mai_jun_jul_aug_sep_okt_nov_des'.split('_');
+
+export default moment.defineLocale('fy', {
+    months: 'jannewaris_febrewaris_maart_april_maaie_juny_july_augustus_septimber_oktober_novimber_desimber'.split(
+        '_'
+    ),
+    monthsShort: function (m, format) {
+        if (!m) {
+            return monthsShortWithDots;
+        } else if (/-MMM-/.test(format)) {
+            return monthsShortWithoutDots[m.month()];
+        } else {
+            return monthsShortWithDots[m.month()];
+        }
+    },
+    monthsParseExact: true,
+    weekdays: 'snein_moandei_tiisdei_woansdei_tongersdei_freed_sneon'.split(
+        '_'
+    ),
+    weekdaysShort: 'si._mo._ti._wo._to._fr._so.'.split('_'),
+    weekdaysMin: 'Si_Mo_Ti_Wo_To_Fr_So'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD-MM-YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[hjoed om] LT',
+        nextDay: '[moarn om] LT',
+        nextWeek: 'dddd [om] LT',
+        lastDay: '[juster om] LT',
+        lastWeek: '[ôfrûne] dddd [om] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'oer %s',
+        past: '%s lyn',
+        s: 'in pear sekonden',
+        ss: '%d sekonden',
+        m: 'ien minút',
+        mm: '%d minuten',
+        h: 'ien oere',
+        hh: '%d oeren',
+        d: 'ien dei',
+        dd: '%d dagen',
+        M: 'ien moanne',
+        MM: '%d moannen',
+        y: 'ien jier',
+        yy: '%d jierren',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
+    ordinal: function (number) {
+        return (
+            number +
+            (number === 1 || number === 8 || number >= 20 ? 'ste' : 'de')
+        );
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ga.js b/backend/node_modules/moment/src/locale/ga.js
new file mode 100644
index 0000000..7f36fb6
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ga.js
@@ -0,0 +1,95 @@
+//! moment.js locale configuration
+//! locale : Irish or Irish Gaelic [ga]
+//! author : André Silva : https://github.com/askpt
+
+import moment from '../moment';
+
+var months = [
+        'Eanáir',
+        'Feabhra',
+        'Márta',
+        'Aibreán',
+        'Bealtaine',
+        'Meitheamh',
+        'Iúil',
+        'Lúnasa',
+        'Meán Fómhair',
+        'Deireadh Fómhair',
+        'Samhain',
+        'Nollaig',
+    ],
+    monthsShort = [
+        'Ean',
+        'Feabh',
+        'Márt',
+        'Aib',
+        'Beal',
+        'Meith',
+        'Iúil',
+        'Lún',
+        'M.F.',
+        'D.F.',
+        'Samh',
+        'Noll',
+    ],
+    weekdays = [
+        'Dé Domhnaigh',
+        'Dé Luain',
+        'Dé Máirt',
+        'Dé Céadaoin',
+        'Déardaoin',
+        'Dé hAoine',
+        'Dé Sathairn',
+    ],
+    weekdaysShort = ['Domh', 'Luan', 'Máirt', 'Céad', 'Déar', 'Aoine', 'Sath'],
+    weekdaysMin = ['Do', 'Lu', 'Má', 'Cé', 'Dé', 'A', 'Sa'];
+
+export default moment.defineLocale('ga', {
+    months: months,
+    monthsShort: monthsShort,
+    monthsParseExact: true,
+    weekdays: weekdays,
+    weekdaysShort: weekdaysShort,
+    weekdaysMin: weekdaysMin,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Inniu ag] LT',
+        nextDay: '[Amárach ag] LT',
+        nextWeek: 'dddd [ag] LT',
+        lastDay: '[Inné ag] LT',
+        lastWeek: 'dddd [seo caite] [ag] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'i %s',
+        past: '%s ó shin',
+        s: 'cúpla soicind',
+        ss: '%d soicind',
+        m: 'nóiméad',
+        mm: '%d nóiméad',
+        h: 'uair an chloig',
+        hh: '%d uair an chloig',
+        d: 'lá',
+        dd: '%d lá',
+        M: 'mí',
+        MM: '%d míonna',
+        y: 'bliain',
+        yy: '%d bliain',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(d|na|mh)/,
+    ordinal: function (number) {
+        var output = number === 1 ? 'd' : number % 10 === 2 ? 'na' : 'mh';
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/gd.js b/backend/node_modules/moment/src/locale/gd.js
new file mode 100644
index 0000000..81f735b
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/gd.js
@@ -0,0 +1,95 @@
+//! moment.js locale configuration
+//! locale : Scottish Gaelic [gd]
+//! author : Jon Ashdown : https://github.com/jonashdown
+
+import moment from '../moment';
+
+var months = [
+        'Am Faoilleach',
+        'An Gearran',
+        'Am Màrt',
+        'An Giblean',
+        'An Cèitean',
+        'An t-Ògmhios',
+        'An t-Iuchar',
+        'An Lùnastal',
+        'An t-Sultain',
+        'An Dàmhair',
+        'An t-Samhain',
+        'An Dùbhlachd',
+    ],
+    monthsShort = [
+        'Faoi',
+        'Gear',
+        'Màrt',
+        'Gibl',
+        'Cèit',
+        'Ògmh',
+        'Iuch',
+        'Lùn',
+        'Sult',
+        'Dàmh',
+        'Samh',
+        'Dùbh',
+    ],
+    weekdays = [
+        'Didòmhnaich',
+        'Diluain',
+        'Dimàirt',
+        'Diciadain',
+        'Diardaoin',
+        'Dihaoine',
+        'Disathairne',
+    ],
+    weekdaysShort = ['Did', 'Dil', 'Dim', 'Dic', 'Dia', 'Dih', 'Dis'],
+    weekdaysMin = ['Dò', 'Lu', 'Mà', 'Ci', 'Ar', 'Ha', 'Sa'];
+
+export default moment.defineLocale('gd', {
+    months: months,
+    monthsShort: monthsShort,
+    monthsParseExact: true,
+    weekdays: weekdays,
+    weekdaysShort: weekdaysShort,
+    weekdaysMin: weekdaysMin,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[An-diugh aig] LT',
+        nextDay: '[A-màireach aig] LT',
+        nextWeek: 'dddd [aig] LT',
+        lastDay: '[An-dè aig] LT',
+        lastWeek: 'dddd [seo chaidh] [aig] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'ann an %s',
+        past: 'bho chionn %s',
+        s: 'beagan diogan',
+        ss: '%d diogan',
+        m: 'mionaid',
+        mm: '%d mionaidean',
+        h: 'uair',
+        hh: '%d uairean',
+        d: 'latha',
+        dd: '%d latha',
+        M: 'mìos',
+        MM: '%d mìosan',
+        y: 'bliadhna',
+        yy: '%d bliadhna',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(d|na|mh)/,
+    ordinal: function (number) {
+        var output = number === 1 ? 'd' : number % 10 === 2 ? 'na' : 'mh';
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/gl.js b/backend/node_modules/moment/src/locale/gl.js
new file mode 100644
index 0000000..980591c
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/gl.js
@@ -0,0 +1,75 @@
+//! moment.js locale configuration
+//! locale : Galician [gl]
+//! author : Juan G. Hurtado : https://github.com/juanghurtado
+
+import moment from '../moment';
+
+export default moment.defineLocale('gl', {
+    months: 'xaneiro_febreiro_marzo_abril_maio_xuño_xullo_agosto_setembro_outubro_novembro_decembro'.split(
+        '_'
+    ),
+    monthsShort:
+        'xan._feb._mar._abr._mai._xuñ._xul._ago._set._out._nov._dec.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'domingo_luns_martes_mércores_xoves_venres_sábado'.split('_'),
+    weekdaysShort: 'dom._lun._mar._mér._xov._ven._sáb.'.split('_'),
+    weekdaysMin: 'do_lu_ma_mé_xo_ve_sá'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D [de] MMMM [de] YYYY',
+        LLL: 'D [de] MMMM [de] YYYY H:mm',
+        LLLL: 'dddd, D [de] MMMM [de] YYYY H:mm',
+    },
+    calendar: {
+        sameDay: function () {
+            return '[hoxe ' + (this.hours() !== 1 ? 'ás' : 'á') + '] LT';
+        },
+        nextDay: function () {
+            return '[mañá ' + (this.hours() !== 1 ? 'ás' : 'á') + '] LT';
+        },
+        nextWeek: function () {
+            return 'dddd [' + (this.hours() !== 1 ? 'ás' : 'a') + '] LT';
+        },
+        lastDay: function () {
+            return '[onte ' + (this.hours() !== 1 ? 'á' : 'a') + '] LT';
+        },
+        lastWeek: function () {
+            return (
+                '[o] dddd [pasado ' + (this.hours() !== 1 ? 'ás' : 'a') + '] LT'
+            );
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: function (str) {
+            if (str.indexOf('un') === 0) {
+                return 'n' + str;
+            }
+            return 'en ' + str;
+        },
+        past: 'hai %s',
+        s: 'uns segundos',
+        ss: '%d segundos',
+        m: 'un minuto',
+        mm: '%d minutos',
+        h: 'unha hora',
+        hh: '%d horas',
+        d: 'un día',
+        dd: '%d días',
+        M: 'un mes',
+        MM: '%d meses',
+        y: 'un ano',
+        yy: '%d anos',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}º/,
+    ordinal: '%dº',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/gom-deva.js b/backend/node_modules/moment/src/locale/gom-deva.js
new file mode 100644
index 0000000..294e358
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/gom-deva.js
@@ -0,0 +1,126 @@
+//! moment.js locale configuration
+//! locale : Konkani Devanagari script [gom-deva]
+//! author : The Discoverer : https://github.com/WikiDiscoverer
+
+import moment from '../moment';
+
+function processRelativeTime(number, withoutSuffix, key, isFuture) {
+    var format = {
+        s: ['थोडया सॅकंडांनी', 'थोडे सॅकंड'],
+        ss: [number + ' सॅकंडांनी', number + ' सॅकंड'],
+        m: ['एका मिणटान', 'एक मिनूट'],
+        mm: [number + ' मिणटांनी', number + ' मिणटां'],
+        h: ['एका वरान', 'एक वर'],
+        hh: [number + ' वरांनी', number + ' वरां'],
+        d: ['एका दिसान', 'एक दीस'],
+        dd: [number + ' दिसांनी', number + ' दीस'],
+        M: ['एका म्हयन्यान', 'एक म्हयनो'],
+        MM: [number + ' म्हयन्यानी', number + ' म्हयने'],
+        y: ['एका वर्सान', 'एक वर्स'],
+        yy: [number + ' वर्सांनी', number + ' वर्सां'],
+    };
+    return isFuture ? format[key][0] : format[key][1];
+}
+
+export default moment.defineLocale('gom-deva', {
+    months: {
+        standalone:
+            'जानेवारी_फेब्रुवारी_मार्च_एप्रील_मे_जून_जुलय_ऑगस्ट_सप्टेंबर_ऑक्टोबर_नोव्हेंबर_डिसेंबर'.split(
+                '_'
+            ),
+        format: 'जानेवारीच्या_फेब्रुवारीच्या_मार्चाच्या_एप्रीलाच्या_मेयाच्या_जूनाच्या_जुलयाच्या_ऑगस्टाच्या_सप्टेंबराच्या_ऑक्टोबराच्या_नोव्हेंबराच्या_डिसेंबराच्या'.split(
+            '_'
+        ),
+        isFormat: /MMMM(\s)+D[oD]?/,
+    },
+    monthsShort:
+        'जाने._फेब्रु._मार्च_एप्री._मे_जून_जुल._ऑग._सप्टें._ऑक्टो._नोव्हें._डिसें.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'आयतार_सोमार_मंगळार_बुधवार_बिरेस्तार_सुक्रार_शेनवार'.split('_'),
+    weekdaysShort: 'आयत._सोम._मंगळ._बुध._ब्रेस्त._सुक्र._शेन.'.split('_'),
+    weekdaysMin: 'आ_सो_मं_बु_ब्रे_सु_शे'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'A h:mm [वाजतां]',
+        LTS: 'A h:mm:ss [वाजतां]',
+        L: 'DD-MM-YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY A h:mm [वाजतां]',
+        LLLL: 'dddd, MMMM Do, YYYY, A h:mm [वाजतां]',
+        llll: 'ddd, D MMM YYYY, A h:mm [वाजतां]',
+    },
+    calendar: {
+        sameDay: '[आयज] LT',
+        nextDay: '[फाल्यां] LT',
+        nextWeek: '[फुडलो] dddd[,] LT',
+        lastDay: '[काल] LT',
+        lastWeek: '[फाटलो] dddd[,] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s',
+        past: '%s आदीं',
+        s: processRelativeTime,
+        ss: processRelativeTime,
+        m: processRelativeTime,
+        mm: processRelativeTime,
+        h: processRelativeTime,
+        hh: processRelativeTime,
+        d: processRelativeTime,
+        dd: processRelativeTime,
+        M: processRelativeTime,
+        MM: processRelativeTime,
+        y: processRelativeTime,
+        yy: processRelativeTime,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(वेर)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            // the ordinal 'वेर' only applies to day of the month
+            case 'D':
+                return number + 'वेर';
+            default:
+            case 'M':
+            case 'Q':
+            case 'DDD':
+            case 'd':
+            case 'w':
+            case 'W':
+                return number;
+        }
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week
+        doy: 3, // The week that contains Jan 4th is the first week of the year (7 + 0 - 4)
+    },
+    meridiemParse: /राती|सकाळीं|दनपारां|सांजे/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'राती') {
+            return hour < 4 ? hour : hour + 12;
+        } else if (meridiem === 'सकाळीं') {
+            return hour;
+        } else if (meridiem === 'दनपारां') {
+            return hour > 12 ? hour : hour + 12;
+        } else if (meridiem === 'सांजे') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'राती';
+        } else if (hour < 12) {
+            return 'सकाळीं';
+        } else if (hour < 16) {
+            return 'दनपारां';
+        } else if (hour < 20) {
+            return 'सांजे';
+        } else {
+            return 'राती';
+        }
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/gom-latn.js b/backend/node_modules/moment/src/locale/gom-latn.js
new file mode 100644
index 0000000..d237161
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/gom-latn.js
@@ -0,0 +1,124 @@
+//! moment.js locale configuration
+//! locale : Konkani Latin script [gom-latn]
+//! author : The Discoverer : https://github.com/WikiDiscoverer
+
+import moment from '../moment';
+
+function processRelativeTime(number, withoutSuffix, key, isFuture) {
+    var format = {
+        s: ['thoddea sekondamni', 'thodde sekond'],
+        ss: [number + ' sekondamni', number + ' sekond'],
+        m: ['eka mintan', 'ek minut'],
+        mm: [number + ' mintamni', number + ' mintam'],
+        h: ['eka voran', 'ek vor'],
+        hh: [number + ' voramni', number + ' voram'],
+        d: ['eka disan', 'ek dis'],
+        dd: [number + ' disamni', number + ' dis'],
+        M: ['eka mhoinean', 'ek mhoino'],
+        MM: [number + ' mhoineamni', number + ' mhoine'],
+        y: ['eka vorsan', 'ek voros'],
+        yy: [number + ' vorsamni', number + ' vorsam'],
+    };
+    return isFuture ? format[key][0] : format[key][1];
+}
+
+export default moment.defineLocale('gom-latn', {
+    months: {
+        standalone:
+            'Janer_Febrer_Mars_Abril_Mai_Jun_Julai_Agost_Setembr_Otubr_Novembr_Dezembr'.split(
+                '_'
+            ),
+        format: 'Janerachea_Febrerachea_Marsachea_Abrilachea_Maiachea_Junachea_Julaiachea_Agostachea_Setembrachea_Otubrachea_Novembrachea_Dezembrachea'.split(
+            '_'
+        ),
+        isFormat: /MMMM(\s)+D[oD]?/,
+    },
+    monthsShort:
+        'Jan._Feb._Mars_Abr._Mai_Jun_Jul._Ago._Set._Otu._Nov._Dez.'.split('_'),
+    monthsParseExact: true,
+    weekdays: "Aitar_Somar_Mongllar_Budhvar_Birestar_Sukrar_Son'var".split('_'),
+    weekdaysShort: 'Ait._Som._Mon._Bud._Bre._Suk._Son.'.split('_'),
+    weekdaysMin: 'Ai_Sm_Mo_Bu_Br_Su_Sn'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'A h:mm [vazta]',
+        LTS: 'A h:mm:ss [vazta]',
+        L: 'DD-MM-YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY A h:mm [vazta]',
+        LLLL: 'dddd, MMMM Do, YYYY, A h:mm [vazta]',
+        llll: 'ddd, D MMM YYYY, A h:mm [vazta]',
+    },
+    calendar: {
+        sameDay: '[Aiz] LT',
+        nextDay: '[Faleam] LT',
+        nextWeek: '[Fuddlo] dddd[,] LT',
+        lastDay: '[Kal] LT',
+        lastWeek: '[Fattlo] dddd[,] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s',
+        past: '%s adim',
+        s: processRelativeTime,
+        ss: processRelativeTime,
+        m: processRelativeTime,
+        mm: processRelativeTime,
+        h: processRelativeTime,
+        hh: processRelativeTime,
+        d: processRelativeTime,
+        dd: processRelativeTime,
+        M: processRelativeTime,
+        MM: processRelativeTime,
+        y: processRelativeTime,
+        yy: processRelativeTime,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(er)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            // the ordinal 'er' only applies to day of the month
+            case 'D':
+                return number + 'er';
+            default:
+            case 'M':
+            case 'Q':
+            case 'DDD':
+            case 'd':
+            case 'w':
+            case 'W':
+                return number;
+        }
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week
+        doy: 3, // The week that contains Jan 4th is the first week of the year (7 + 0 - 4)
+    },
+    meridiemParse: /rati|sokallim|donparam|sanje/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'rati') {
+            return hour < 4 ? hour : hour + 12;
+        } else if (meridiem === 'sokallim') {
+            return hour;
+        } else if (meridiem === 'donparam') {
+            return hour > 12 ? hour : hour + 12;
+        } else if (meridiem === 'sanje') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'rati';
+        } else if (hour < 12) {
+            return 'sokallim';
+        } else if (hour < 16) {
+            return 'donparam';
+        } else if (hour < 20) {
+            return 'sanje';
+        } else {
+            return 'rati';
+        }
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/gu.js b/backend/node_modules/moment/src/locale/gu.js
new file mode 100644
index 0000000..d432d2c
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/gu.js
@@ -0,0 +1,122 @@
+//! moment.js locale configuration
+//! locale : Gujarati [gu]
+//! author : Kaushik Thanki : https://github.com/Kaushik1987
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '૧',
+        2: '૨',
+        3: '૩',
+        4: '૪',
+        5: '૫',
+        6: '૬',
+        7: '૭',
+        8: '૮',
+        9: '૯',
+        0: '૦',
+    },
+    numberMap = {
+        '૧': '1',
+        '૨': '2',
+        '૩': '3',
+        '૪': '4',
+        '૫': '5',
+        '૬': '6',
+        '૭': '7',
+        '૮': '8',
+        '૯': '9',
+        '૦': '0',
+    };
+
+export default moment.defineLocale('gu', {
+    months: 'જાન્યુઆરી_ફેબ્રુઆરી_માર્ચ_એપ્રિલ_મે_જૂન_જુલાઈ_ઑગસ્ટ_સપ્ટેમ્બર_ઑક્ટ્બર_નવેમ્બર_ડિસેમ્બર'.split(
+        '_'
+    ),
+    monthsShort:
+        'જાન્યુ._ફેબ્રુ._માર્ચ_એપ્રિ._મે_જૂન_જુલા._ઑગ._સપ્ટે._ઑક્ટ્._નવે._ડિસે.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'રવિવાર_સોમવાર_મંગળવાર_બુધ્વાર_ગુરુવાર_શુક્રવાર_શનિવાર'.split(
+        '_'
+    ),
+    weekdaysShort: 'રવિ_સોમ_મંગળ_બુધ્_ગુરુ_શુક્ર_શનિ'.split('_'),
+    weekdaysMin: 'ર_સો_મં_બુ_ગુ_શુ_શ'.split('_'),
+    longDateFormat: {
+        LT: 'A h:mm વાગ્યે',
+        LTS: 'A h:mm:ss વાગ્યે',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY, A h:mm વાગ્યે',
+        LLLL: 'dddd, D MMMM YYYY, A h:mm વાગ્યે',
+    },
+    calendar: {
+        sameDay: '[આજ] LT',
+        nextDay: '[કાલે] LT',
+        nextWeek: 'dddd, LT',
+        lastDay: '[ગઇકાલે] LT',
+        lastWeek: '[પાછલા] dddd, LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s મા',
+        past: '%s પહેલા',
+        s: 'અમુક પળો',
+        ss: '%d સેકંડ',
+        m: 'એક મિનિટ',
+        mm: '%d મિનિટ',
+        h: 'એક કલાક',
+        hh: '%d કલાક',
+        d: 'એક દિવસ',
+        dd: '%d દિવસ',
+        M: 'એક મહિનો',
+        MM: '%d મહિનો',
+        y: 'એક વર્ષ',
+        yy: '%d વર્ષ',
+    },
+    preparse: function (string) {
+        return string.replace(/[૧૨૩૪૫૬૭૮૯૦]/g, function (match) {
+            return numberMap[match];
+        });
+    },
+    postformat: function (string) {
+        return string.replace(/\d/g, function (match) {
+            return symbolMap[match];
+        });
+    },
+    // Gujarati notation for meridiems are quite fuzzy in practice. While there exists
+    // a rigid notion of a 'Pahar' it is not used as rigidly in modern Gujarati.
+    meridiemParse: /રાત|બપોર|સવાર|સાંજ/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'રાત') {
+            return hour < 4 ? hour : hour + 12;
+        } else if (meridiem === 'સવાર') {
+            return hour;
+        } else if (meridiem === 'બપોર') {
+            return hour >= 10 ? hour : hour + 12;
+        } else if (meridiem === 'સાંજ') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'રાત';
+        } else if (hour < 10) {
+            return 'સવાર';
+        } else if (hour < 17) {
+            return 'બપોર';
+        } else if (hour < 20) {
+            return 'સાંજ';
+        } else {
+            return 'રાત';
+        }
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/he.js b/backend/node_modules/moment/src/locale/he.js
new file mode 100644
index 0000000..08add2c
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/he.js
@@ -0,0 +1,94 @@
+//! moment.js locale configuration
+//! locale : Hebrew [he]
+//! author : Tomer Cohen : https://github.com/tomer
+//! author : Moshe Simantov : https://github.com/DevelopmentIL
+//! author : Tal Ater : https://github.com/TalAter
+
+import moment from '../moment';
+
+export default moment.defineLocale('he', {
+    months: 'ינואר_פברואר_מרץ_אפריל_מאי_יוני_יולי_אוגוסט_ספטמבר_אוקטובר_נובמבר_דצמבר'.split(
+        '_'
+    ),
+    monthsShort:
+        'ינו׳_פבר׳_מרץ_אפר׳_מאי_יוני_יולי_אוג׳_ספט׳_אוק׳_נוב׳_דצמ׳'.split('_'),
+    weekdays: 'ראשון_שני_שלישי_רביעי_חמישי_שישי_שבת'.split('_'),
+    weekdaysShort: 'א׳_ב׳_ג׳_ד׳_ה׳_ו׳_ש׳'.split('_'),
+    weekdaysMin: 'א_ב_ג_ד_ה_ו_ש'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D [ב]MMMM YYYY',
+        LLL: 'D [ב]MMMM YYYY HH:mm',
+        LLLL: 'dddd, D [ב]MMMM YYYY HH:mm',
+        l: 'D/M/YYYY',
+        ll: 'D MMM YYYY',
+        lll: 'D MMM YYYY HH:mm',
+        llll: 'ddd, D MMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[היום ב־]LT',
+        nextDay: '[מחר ב־]LT',
+        nextWeek: 'dddd [בשעה] LT',
+        lastDay: '[אתמול ב־]LT',
+        lastWeek: '[ביום] dddd [האחרון בשעה] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'בעוד %s',
+        past: 'לפני %s',
+        s: 'מספר שניות',
+        ss: '%d שניות',
+        m: 'דקה',
+        mm: '%d דקות',
+        h: 'שעה',
+        hh: function (number) {
+            if (number === 2) {
+                return 'שעתיים';
+            }
+            return number + ' שעות';
+        },
+        d: 'יום',
+        dd: function (number) {
+            if (number === 2) {
+                return 'יומיים';
+            }
+            return number + ' ימים';
+        },
+        M: 'חודש',
+        MM: function (number) {
+            if (number === 2) {
+                return 'חודשיים';
+            }
+            return number + ' חודשים';
+        },
+        y: 'שנה',
+        yy: function (number) {
+            if (number === 2) {
+                return 'שנתיים';
+            } else if (number % 10 === 0 && number !== 10) {
+                return number + ' שנה';
+            }
+            return number + ' שנים';
+        },
+    },
+    meridiemParse:
+        /אחה"צ|לפנה"צ|אחרי הצהריים|לפני הצהריים|לפנות בוקר|בבוקר|בערב/i,
+    isPM: function (input) {
+        return /^(אחה"צ|אחרי הצהריים|בערב)$/.test(input);
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 5) {
+            return 'לפנות בוקר';
+        } else if (hour < 10) {
+            return 'בבוקר';
+        } else if (hour < 12) {
+            return isLower ? 'לפנה"צ' : 'לפני הצהריים';
+        } else if (hour < 18) {
+            return isLower ? 'אחה"צ' : 'אחרי הצהריים';
+        } else {
+            return 'בערב';
+        }
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/hi.js b/backend/node_modules/moment/src/locale/hi.js
new file mode 100644
index 0000000..2e3a973
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/hi.js
@@ -0,0 +1,168 @@
+//! moment.js locale configuration
+//! locale : Hindi [hi]
+//! author : Mayank Singhal : https://github.com/mayanksinghal
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '१',
+        2: '२',
+        3: '३',
+        4: '४',
+        5: '५',
+        6: '६',
+        7: '७',
+        8: '८',
+        9: '९',
+        0: '०',
+    },
+    numberMap = {
+        '१': '1',
+        '२': '2',
+        '३': '3',
+        '४': '4',
+        '५': '5',
+        '६': '6',
+        '७': '7',
+        '८': '8',
+        '९': '9',
+        '०': '0',
+    },
+    monthsParse = [
+        /^जन/i,
+        /^फ़र|फर/i,
+        /^मार्च/i,
+        /^अप्रै/i,
+        /^मई/i,
+        /^जून/i,
+        /^जुल/i,
+        /^अग/i,
+        /^सितं|सित/i,
+        /^अक्टू/i,
+        /^नव|नवं/i,
+        /^दिसं|दिस/i,
+    ],
+    shortMonthsParse = [
+        /^जन/i,
+        /^फ़र/i,
+        /^मार्च/i,
+        /^अप्रै/i,
+        /^मई/i,
+        /^जून/i,
+        /^जुल/i,
+        /^अग/i,
+        /^सित/i,
+        /^अक्टू/i,
+        /^नव/i,
+        /^दिस/i,
+    ];
+
+export default moment.defineLocale('hi', {
+    months: {
+        format: 'जनवरी_फ़रवरी_मार्च_अप्रैल_मई_जून_जुलाई_अगस्त_सितम्बर_अक्टूबर_नवम्बर_दिसम्बर'.split(
+            '_'
+        ),
+        standalone:
+            'जनवरी_फरवरी_मार्च_अप्रैल_मई_जून_जुलाई_अगस्त_सितंबर_अक्टूबर_नवंबर_दिसंबर'.split(
+                '_'
+            ),
+    },
+    monthsShort:
+        'जन._फ़र._मार्च_अप्रै._मई_जून_जुल._अग._सित._अक्टू._नव._दिस.'.split('_'),
+    weekdays: 'रविवार_सोमवार_मंगलवार_बुधवार_गुरूवार_शुक्रवार_शनिवार'.split('_'),
+    weekdaysShort: 'रवि_सोम_मंगल_बुध_गुरू_शुक्र_शनि'.split('_'),
+    weekdaysMin: 'र_सो_मं_बु_गु_शु_श'.split('_'),
+    longDateFormat: {
+        LT: 'A h:mm बजे',
+        LTS: 'A h:mm:ss बजे',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY, A h:mm बजे',
+        LLLL: 'dddd, D MMMM YYYY, A h:mm बजे',
+    },
+
+    monthsParse: monthsParse,
+    longMonthsParse: monthsParse,
+    shortMonthsParse: shortMonthsParse,
+
+    monthsRegex:
+        /^(जनवरी|जन\.?|फ़रवरी|फरवरी|फ़र\.?|मार्च?|अप्रैल|अप्रै\.?|मई?|जून?|जुलाई|जुल\.?|अगस्त|अग\.?|सितम्बर|सितंबर|सित\.?|अक्टूबर|अक्टू\.?|नवम्बर|नवंबर|नव\.?|दिसम्बर|दिसंबर|दिस\.?)/i,
+
+    monthsShortRegex:
+        /^(जनवरी|जन\.?|फ़रवरी|फरवरी|फ़र\.?|मार्च?|अप्रैल|अप्रै\.?|मई?|जून?|जुलाई|जुल\.?|अगस्त|अग\.?|सितम्बर|सितंबर|सित\.?|अक्टूबर|अक्टू\.?|नवम्बर|नवंबर|नव\.?|दिसम्बर|दिसंबर|दिस\.?)/i,
+
+    monthsStrictRegex:
+        /^(जनवरी?|फ़रवरी|फरवरी?|मार्च?|अप्रैल?|मई?|जून?|जुलाई?|अगस्त?|सितम्बर|सितंबर|सित?\.?|अक्टूबर|अक्टू\.?|नवम्बर|नवंबर?|दिसम्बर|दिसंबर?)/i,
+
+    monthsShortStrictRegex:
+        /^(जन\.?|फ़र\.?|मार्च?|अप्रै\.?|मई?|जून?|जुल\.?|अग\.?|सित\.?|अक्टू\.?|नव\.?|दिस\.?)/i,
+
+    calendar: {
+        sameDay: '[आज] LT',
+        nextDay: '[कल] LT',
+        nextWeek: 'dddd, LT',
+        lastDay: '[कल] LT',
+        lastWeek: '[पिछले] dddd, LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s में',
+        past: '%s पहले',
+        s: 'कुछ ही क्षण',
+        ss: '%d सेकंड',
+        m: 'एक मिनट',
+        mm: '%d मिनट',
+        h: 'एक घंटा',
+        hh: '%d घंटे',
+        d: 'एक दिन',
+        dd: '%d दिन',
+        M: 'एक महीने',
+        MM: '%d महीने',
+        y: 'एक वर्ष',
+        yy: '%d वर्ष',
+    },
+    preparse: function (string) {
+        return string.replace(/[१२३४५६७८९०]/g, function (match) {
+            return numberMap[match];
+        });
+    },
+    postformat: function (string) {
+        return string.replace(/\d/g, function (match) {
+            return symbolMap[match];
+        });
+    },
+    // Hindi notation for meridiems are quite fuzzy in practice. While there exists
+    // a rigid notion of a 'Pahar' it is not used as rigidly in modern Hindi.
+    meridiemParse: /रात|सुबह|दोपहर|शाम/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'रात') {
+            return hour < 4 ? hour : hour + 12;
+        } else if (meridiem === 'सुबह') {
+            return hour;
+        } else if (meridiem === 'दोपहर') {
+            return hour >= 10 ? hour : hour + 12;
+        } else if (meridiem === 'शाम') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'रात';
+        } else if (hour < 10) {
+            return 'सुबह';
+        } else if (hour < 17) {
+            return 'दोपहर';
+        } else if (hour < 20) {
+            return 'शाम';
+        } else {
+            return 'रात';
+        }
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/hr.js b/backend/node_modules/moment/src/locale/hr.js
new file mode 100644
index 0000000..48c1e9e
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/hr.js
@@ -0,0 +1,156 @@
+//! moment.js locale configuration
+//! locale : Croatian [hr]
+//! author : Bojan Marković : https://github.com/bmarkovic
+
+import moment from '../moment';
+
+function translate(number, withoutSuffix, key) {
+    var result = number + ' ';
+    switch (key) {
+        case 'ss':
+            if (number === 1) {
+                result += 'sekunda';
+            } else if (number === 2 || number === 3 || number === 4) {
+                result += 'sekunde';
+            } else {
+                result += 'sekundi';
+            }
+            return result;
+        case 'm':
+            return withoutSuffix ? 'jedna minuta' : 'jedne minute';
+        case 'mm':
+            if (number === 1) {
+                result += 'minuta';
+            } else if (number === 2 || number === 3 || number === 4) {
+                result += 'minute';
+            } else {
+                result += 'minuta';
+            }
+            return result;
+        case 'h':
+            return withoutSuffix ? 'jedan sat' : 'jednog sata';
+        case 'hh':
+            if (number === 1) {
+                result += 'sat';
+            } else if (number === 2 || number === 3 || number === 4) {
+                result += 'sata';
+            } else {
+                result += 'sati';
+            }
+            return result;
+        case 'dd':
+            if (number === 1) {
+                result += 'dan';
+            } else {
+                result += 'dana';
+            }
+            return result;
+        case 'MM':
+            if (number === 1) {
+                result += 'mjesec';
+            } else if (number === 2 || number === 3 || number === 4) {
+                result += 'mjeseca';
+            } else {
+                result += 'mjeseci';
+            }
+            return result;
+        case 'yy':
+            if (number === 1) {
+                result += 'godina';
+            } else if (number === 2 || number === 3 || number === 4) {
+                result += 'godine';
+            } else {
+                result += 'godina';
+            }
+            return result;
+    }
+}
+
+export default moment.defineLocale('hr', {
+    months: {
+        format: 'siječnja_veljače_ožujka_travnja_svibnja_lipnja_srpnja_kolovoza_rujna_listopada_studenoga_prosinca'.split(
+            '_'
+        ),
+        standalone:
+            'siječanj_veljača_ožujak_travanj_svibanj_lipanj_srpanj_kolovoz_rujan_listopad_studeni_prosinac'.split(
+                '_'
+            ),
+    },
+    monthsShort:
+        'sij._velj._ožu._tra._svi._lip._srp._kol._ruj._lis._stu._pro.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'nedjelja_ponedjeljak_utorak_srijeda_četvrtak_petak_subota'.split(
+        '_'
+    ),
+    weekdaysShort: 'ned._pon._uto._sri._čet._pet._sub.'.split('_'),
+    weekdaysMin: 'ne_po_ut_sr_če_pe_su'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'Do MMMM YYYY',
+        LLL: 'Do MMMM YYYY H:mm',
+        LLLL: 'dddd, Do MMMM YYYY H:mm',
+    },
+    calendar: {
+        sameDay: '[danas u] LT',
+        nextDay: '[sutra u] LT',
+        nextWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[u] [nedjelju] [u] LT';
+                case 3:
+                    return '[u] [srijedu] [u] LT';
+                case 6:
+                    return '[u] [subotu] [u] LT';
+                case 1:
+                case 2:
+                case 4:
+                case 5:
+                    return '[u] dddd [u] LT';
+            }
+        },
+        lastDay: '[jučer u] LT',
+        lastWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[prošlu] [nedjelju] [u] LT';
+                case 3:
+                    return '[prošlu] [srijedu] [u] LT';
+                case 6:
+                    return '[prošle] [subote] [u] LT';
+                case 1:
+                case 2:
+                case 4:
+                case 5:
+                    return '[prošli] dddd [u] LT';
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'za %s',
+        past: 'prije %s',
+        s: 'par sekundi',
+        ss: translate,
+        m: translate,
+        mm: translate,
+        h: translate,
+        hh: translate,
+        d: 'dan',
+        dd: translate,
+        M: 'mjesec',
+        MM: translate,
+        y: 'godinu',
+        yy: translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/hu.js b/backend/node_modules/moment/src/locale/hu.js
new file mode 100644
index 0000000..f2f5981
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/hu.js
@@ -0,0 +1,118 @@
+//! moment.js locale configuration
+//! locale : Hungarian [hu]
+//! author : Adam Brunner : https://github.com/adambrunner
+//! author : Peter Viszt  : https://github.com/passatgt
+
+import moment from '../moment';
+
+var weekEndings =
+    'vasárnap hétfőn kedden szerdán csütörtökön pénteken szombaton'.split(' ');
+function translate(number, withoutSuffix, key, isFuture) {
+    var num = number;
+    switch (key) {
+        case 's':
+            return isFuture || withoutSuffix
+                ? 'néhány másodperc'
+                : 'néhány másodperce';
+        case 'ss':
+            return num + (isFuture || withoutSuffix)
+                ? ' másodperc'
+                : ' másodperce';
+        case 'm':
+            return 'egy' + (isFuture || withoutSuffix ? ' perc' : ' perce');
+        case 'mm':
+            return num + (isFuture || withoutSuffix ? ' perc' : ' perce');
+        case 'h':
+            return 'egy' + (isFuture || withoutSuffix ? ' óra' : ' órája');
+        case 'hh':
+            return num + (isFuture || withoutSuffix ? ' óra' : ' órája');
+        case 'd':
+            return 'egy' + (isFuture || withoutSuffix ? ' nap' : ' napja');
+        case 'dd':
+            return num + (isFuture || withoutSuffix ? ' nap' : ' napja');
+        case 'M':
+            return 'egy' + (isFuture || withoutSuffix ? ' hónap' : ' hónapja');
+        case 'MM':
+            return num + (isFuture || withoutSuffix ? ' hónap' : ' hónapja');
+        case 'y':
+            return 'egy' + (isFuture || withoutSuffix ? ' év' : ' éve');
+        case 'yy':
+            return num + (isFuture || withoutSuffix ? ' év' : ' éve');
+    }
+    return '';
+}
+function week(isFuture) {
+    return (
+        (isFuture ? '' : '[múlt] ') +
+        '[' +
+        weekEndings[this.day()] +
+        '] LT[-kor]'
+    );
+}
+
+export default moment.defineLocale('hu', {
+    months: 'január_február_március_április_május_június_július_augusztus_szeptember_október_november_december'.split(
+        '_'
+    ),
+    monthsShort:
+        'jan._feb._márc._ápr._máj._jún._júl._aug._szept._okt._nov._dec.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'vasárnap_hétfő_kedd_szerda_csütörtök_péntek_szombat'.split('_'),
+    weekdaysShort: 'vas_hét_kedd_sze_csüt_pén_szo'.split('_'),
+    weekdaysMin: 'v_h_k_sze_cs_p_szo'.split('_'),
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'YYYY.MM.DD.',
+        LL: 'YYYY. MMMM D.',
+        LLL: 'YYYY. MMMM D. H:mm',
+        LLLL: 'YYYY. MMMM D., dddd H:mm',
+    },
+    meridiemParse: /de|du/i,
+    isPM: function (input) {
+        return input.charAt(1).toLowerCase() === 'u';
+    },
+    meridiem: function (hours, minutes, isLower) {
+        if (hours < 12) {
+            return isLower === true ? 'de' : 'DE';
+        } else {
+            return isLower === true ? 'du' : 'DU';
+        }
+    },
+    calendar: {
+        sameDay: '[ma] LT[-kor]',
+        nextDay: '[holnap] LT[-kor]',
+        nextWeek: function () {
+            return week.call(this, true);
+        },
+        lastDay: '[tegnap] LT[-kor]',
+        lastWeek: function () {
+            return week.call(this, false);
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s múlva',
+        past: '%s',
+        s: translate,
+        ss: translate,
+        m: translate,
+        mm: translate,
+        h: translate,
+        hh: translate,
+        d: translate,
+        dd: translate,
+        M: translate,
+        MM: translate,
+        y: translate,
+        yy: translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/hy-am.js b/backend/node_modules/moment/src/locale/hy-am.js
new file mode 100644
index 0000000..283cfbd
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/hy-am.js
@@ -0,0 +1,94 @@
+//! moment.js locale configuration
+//! locale : Armenian [hy-am]
+//! author : Armendarabyan : https://github.com/armendarabyan
+
+import moment from '../moment';
+
+export default moment.defineLocale('hy-am', {
+    months: {
+        format: 'հունվարի_փետրվարի_մարտի_ապրիլի_մայիսի_հունիսի_հուլիսի_օգոստոսի_սեպտեմբերի_հոկտեմբերի_նոյեմբերի_դեկտեմբերի'.split(
+            '_'
+        ),
+        standalone:
+            'հունվար_փետրվար_մարտ_ապրիլ_մայիս_հունիս_հուլիս_օգոստոս_սեպտեմբեր_հոկտեմբեր_նոյեմբեր_դեկտեմբեր'.split(
+                '_'
+            ),
+    },
+    monthsShort: 'հնվ_փտր_մրտ_ապր_մյս_հնս_հլս_օգս_սպտ_հկտ_նմբ_դկտ'.split('_'),
+    weekdays:
+        'կիրակի_երկուշաբթի_երեքշաբթի_չորեքշաբթի_հինգշաբթի_ուրբաթ_շաբաթ'.split(
+            '_'
+        ),
+    weekdaysShort: 'կրկ_երկ_երք_չրք_հնգ_ուրբ_շբթ'.split('_'),
+    weekdaysMin: 'կրկ_երկ_երք_չրք_հնգ_ուրբ_շբթ'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY թ.',
+        LLL: 'D MMMM YYYY թ., HH:mm',
+        LLLL: 'dddd, D MMMM YYYY թ., HH:mm',
+    },
+    calendar: {
+        sameDay: '[այսօր] LT',
+        nextDay: '[վաղը] LT',
+        lastDay: '[երեկ] LT',
+        nextWeek: function () {
+            return 'dddd [օրը ժամը] LT';
+        },
+        lastWeek: function () {
+            return '[անցած] dddd [օրը ժամը] LT';
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s հետո',
+        past: '%s առաջ',
+        s: 'մի քանի վայրկյան',
+        ss: '%d վայրկյան',
+        m: 'րոպե',
+        mm: '%d րոպե',
+        h: 'ժամ',
+        hh: '%d ժամ',
+        d: 'օր',
+        dd: '%d օր',
+        M: 'ամիս',
+        MM: '%d ամիս',
+        y: 'տարի',
+        yy: '%d տարի',
+    },
+    meridiemParse: /գիշերվա|առավոտվա|ցերեկվա|երեկոյան/,
+    isPM: function (input) {
+        return /^(ցերեկվա|երեկոյան)$/.test(input);
+    },
+    meridiem: function (hour) {
+        if (hour < 4) {
+            return 'գիշերվա';
+        } else if (hour < 12) {
+            return 'առավոտվա';
+        } else if (hour < 17) {
+            return 'ցերեկվա';
+        } else {
+            return 'երեկոյան';
+        }
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}|\d{1,2}-(ին|րդ)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'DDD':
+            case 'w':
+            case 'W':
+            case 'DDDo':
+                if (number === 1) {
+                    return number + '-ին';
+                }
+                return number + '-րդ';
+            default:
+                return number;
+        }
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/id.js b/backend/node_modules/moment/src/locale/id.js
new file mode 100644
index 0000000..3260e1c
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/id.js
@@ -0,0 +1,76 @@
+//! moment.js locale configuration
+//! locale : Indonesian [id]
+//! author : Mohammad Satrio Utomo : https://github.com/tyok
+//! reference: http://id.wikisource.org/wiki/Pedoman_Umum_Ejaan_Bahasa_Indonesia_yang_Disempurnakan
+
+import moment from '../moment';
+
+export default moment.defineLocale('id', {
+    months: 'Januari_Februari_Maret_April_Mei_Juni_Juli_Agustus_September_Oktober_November_Desember'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mar_Apr_Mei_Jun_Jul_Agt_Sep_Okt_Nov_Des'.split('_'),
+    weekdays: 'Minggu_Senin_Selasa_Rabu_Kamis_Jumat_Sabtu'.split('_'),
+    weekdaysShort: 'Min_Sen_Sel_Rab_Kam_Jum_Sab'.split('_'),
+    weekdaysMin: 'Mg_Sn_Sl_Rb_Km_Jm_Sb'.split('_'),
+    longDateFormat: {
+        LT: 'HH.mm',
+        LTS: 'HH.mm.ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY [pukul] HH.mm',
+        LLLL: 'dddd, D MMMM YYYY [pukul] HH.mm',
+    },
+    meridiemParse: /pagi|siang|sore|malam/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'pagi') {
+            return hour;
+        } else if (meridiem === 'siang') {
+            return hour >= 11 ? hour : hour + 12;
+        } else if (meridiem === 'sore' || meridiem === 'malam') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hours, minutes, isLower) {
+        if (hours < 11) {
+            return 'pagi';
+        } else if (hours < 15) {
+            return 'siang';
+        } else if (hours < 19) {
+            return 'sore';
+        } else {
+            return 'malam';
+        }
+    },
+    calendar: {
+        sameDay: '[Hari ini pukul] LT',
+        nextDay: '[Besok pukul] LT',
+        nextWeek: 'dddd [pukul] LT',
+        lastDay: '[Kemarin pukul] LT',
+        lastWeek: 'dddd [lalu pukul] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'dalam %s',
+        past: '%s yang lalu',
+        s: 'beberapa detik',
+        ss: '%d detik',
+        m: 'semenit',
+        mm: '%d menit',
+        h: 'sejam',
+        hh: '%d jam',
+        d: 'sehari',
+        dd: '%d hari',
+        M: 'sebulan',
+        MM: '%d bulan',
+        y: 'setahun',
+        yy: '%d tahun',
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/is.js b/backend/node_modules/moment/src/locale/is.js
new file mode 100644
index 0000000..d2c6f47
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/is.js
@@ -0,0 +1,140 @@
+//! moment.js locale configuration
+//! locale : Icelandic [is]
+//! author : Hinrik Örn Sigurðsson : https://github.com/hinrik
+
+import moment from '../moment';
+
+function plural(n) {
+    if (n % 100 === 11) {
+        return true;
+    } else if (n % 10 === 1) {
+        return false;
+    }
+    return true;
+}
+function translate(number, withoutSuffix, key, isFuture) {
+    var result = number + ' ';
+    switch (key) {
+        case 's':
+            return withoutSuffix || isFuture
+                ? 'nokkrar sekúndur'
+                : 'nokkrum sekúndum';
+        case 'ss':
+            if (plural(number)) {
+                return (
+                    result +
+                    (withoutSuffix || isFuture ? 'sekúndur' : 'sekúndum')
+                );
+            }
+            return result + 'sekúnda';
+        case 'm':
+            return withoutSuffix ? 'mínúta' : 'mínútu';
+        case 'mm':
+            if (plural(number)) {
+                return (
+                    result + (withoutSuffix || isFuture ? 'mínútur' : 'mínútum')
+                );
+            } else if (withoutSuffix) {
+                return result + 'mínúta';
+            }
+            return result + 'mínútu';
+        case 'hh':
+            if (plural(number)) {
+                return (
+                    result +
+                    (withoutSuffix || isFuture
+                        ? 'klukkustundir'
+                        : 'klukkustundum')
+                );
+            }
+            return result + 'klukkustund';
+        case 'd':
+            if (withoutSuffix) {
+                return 'dagur';
+            }
+            return isFuture ? 'dag' : 'degi';
+        case 'dd':
+            if (plural(number)) {
+                if (withoutSuffix) {
+                    return result + 'dagar';
+                }
+                return result + (isFuture ? 'daga' : 'dögum');
+            } else if (withoutSuffix) {
+                return result + 'dagur';
+            }
+            return result + (isFuture ? 'dag' : 'degi');
+        case 'M':
+            if (withoutSuffix) {
+                return 'mánuður';
+            }
+            return isFuture ? 'mánuð' : 'mánuði';
+        case 'MM':
+            if (plural(number)) {
+                if (withoutSuffix) {
+                    return result + 'mánuðir';
+                }
+                return result + (isFuture ? 'mánuði' : 'mánuðum');
+            } else if (withoutSuffix) {
+                return result + 'mánuður';
+            }
+            return result + (isFuture ? 'mánuð' : 'mánuði');
+        case 'y':
+            return withoutSuffix || isFuture ? 'ár' : 'ári';
+        case 'yy':
+            if (plural(number)) {
+                return result + (withoutSuffix || isFuture ? 'ár' : 'árum');
+            }
+            return result + (withoutSuffix || isFuture ? 'ár' : 'ári');
+    }
+}
+
+export default moment.defineLocale('is', {
+    months: 'janúar_febrúar_mars_apríl_maí_júní_júlí_ágúst_september_október_nóvember_desember'.split(
+        '_'
+    ),
+    monthsShort: 'jan_feb_mar_apr_maí_jún_júl_ágú_sep_okt_nóv_des'.split('_'),
+    weekdays:
+        'sunnudagur_mánudagur_þriðjudagur_miðvikudagur_fimmtudagur_föstudagur_laugardagur'.split(
+            '_'
+        ),
+    weekdaysShort: 'sun_mán_þri_mið_fim_fös_lau'.split('_'),
+    weekdaysMin: 'Su_Má_Þr_Mi_Fi_Fö_La'.split('_'),
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY [kl.] H:mm',
+        LLLL: 'dddd, D. MMMM YYYY [kl.] H:mm',
+    },
+    calendar: {
+        sameDay: '[í dag kl.] LT',
+        nextDay: '[á morgun kl.] LT',
+        nextWeek: 'dddd [kl.] LT',
+        lastDay: '[í gær kl.] LT',
+        lastWeek: '[síðasta] dddd [kl.] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'eftir %s',
+        past: 'fyrir %s síðan',
+        s: translate,
+        ss: translate,
+        m: translate,
+        mm: translate,
+        h: 'klukkustund',
+        hh: translate,
+        d: translate,
+        dd: translate,
+        M: translate,
+        MM: translate,
+        y: translate,
+        yy: translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/it-ch.js b/backend/node_modules/moment/src/locale/it-ch.js
new file mode 100644
index 0000000..3437453
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/it-ch.js
@@ -0,0 +1,64 @@
+//! moment.js locale configuration
+//! locale : Italian (Switzerland) [it-ch]
+//! author : xfh : https://github.com/xfh
+
+import moment from '../moment';
+
+export default moment.defineLocale('it-ch', {
+    months: 'gennaio_febbraio_marzo_aprile_maggio_giugno_luglio_agosto_settembre_ottobre_novembre_dicembre'.split(
+        '_'
+    ),
+    monthsShort: 'gen_feb_mar_apr_mag_giu_lug_ago_set_ott_nov_dic'.split('_'),
+    weekdays: 'domenica_lunedì_martedì_mercoledì_giovedì_venerdì_sabato'.split(
+        '_'
+    ),
+    weekdaysShort: 'dom_lun_mar_mer_gio_ven_sab'.split('_'),
+    weekdaysMin: 'do_lu_ma_me_gi_ve_sa'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Oggi alle] LT',
+        nextDay: '[Domani alle] LT',
+        nextWeek: 'dddd [alle] LT',
+        lastDay: '[Ieri alle] LT',
+        lastWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[la scorsa] dddd [alle] LT';
+                default:
+                    return '[lo scorso] dddd [alle] LT';
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: function (s) {
+            return (/^[0-9].+$/.test(s) ? 'tra' : 'in') + ' ' + s;
+        },
+        past: '%s fa',
+        s: 'alcuni secondi',
+        ss: '%d secondi',
+        m: 'un minuto',
+        mm: '%d minuti',
+        h: "un'ora",
+        hh: '%d ore',
+        d: 'un giorno',
+        dd: '%d giorni',
+        M: 'un mese',
+        MM: '%d mesi',
+        y: 'un anno',
+        yy: '%d anni',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}º/,
+    ordinal: '%dº',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/it.js b/backend/node_modules/moment/src/locale/it.js
new file mode 100644
index 0000000..0aa5721
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/it.js
@@ -0,0 +1,106 @@
+//! moment.js locale configuration
+//! locale : Italian [it]
+//! author : Lorenzo : https://github.com/aliem
+//! author: Mattia Larentis: https://github.com/nostalgiaz
+//! author: Marco : https://github.com/Manfre98
+
+import moment from '../moment';
+
+export default moment.defineLocale('it', {
+    months: 'gennaio_febbraio_marzo_aprile_maggio_giugno_luglio_agosto_settembre_ottobre_novembre_dicembre'.split(
+        '_'
+    ),
+    monthsShort: 'gen_feb_mar_apr_mag_giu_lug_ago_set_ott_nov_dic'.split('_'),
+    weekdays: 'domenica_lunedì_martedì_mercoledì_giovedì_venerdì_sabato'.split(
+        '_'
+    ),
+    weekdaysShort: 'dom_lun_mar_mer_gio_ven_sab'.split('_'),
+    weekdaysMin: 'do_lu_ma_me_gi_ve_sa'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: function () {
+            return (
+                '[Oggi a' +
+                (this.hours() > 1 ? 'lle ' : this.hours() === 0 ? ' ' : "ll'") +
+                ']LT'
+            );
+        },
+        nextDay: function () {
+            return (
+                '[Domani a' +
+                (this.hours() > 1 ? 'lle ' : this.hours() === 0 ? ' ' : "ll'") +
+                ']LT'
+            );
+        },
+        nextWeek: function () {
+            return (
+                'dddd [a' +
+                (this.hours() > 1 ? 'lle ' : this.hours() === 0 ? ' ' : "ll'") +
+                ']LT'
+            );
+        },
+        lastDay: function () {
+            return (
+                '[Ieri a' +
+                (this.hours() > 1 ? 'lle ' : this.hours() === 0 ? ' ' : "ll'") +
+                ']LT'
+            );
+        },
+        lastWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return (
+                        '[La scorsa] dddd [a' +
+                        (this.hours() > 1
+                            ? 'lle '
+                            : this.hours() === 0
+                              ? ' '
+                              : "ll'") +
+                        ']LT'
+                    );
+                default:
+                    return (
+                        '[Lo scorso] dddd [a' +
+                        (this.hours() > 1
+                            ? 'lle '
+                            : this.hours() === 0
+                              ? ' '
+                              : "ll'") +
+                        ']LT'
+                    );
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'tra %s',
+        past: '%s fa',
+        s: 'alcuni secondi',
+        ss: '%d secondi',
+        m: 'un minuto',
+        mm: '%d minuti',
+        h: "un'ora",
+        hh: '%d ore',
+        d: 'un giorno',
+        dd: '%d giorni',
+        w: 'una settimana',
+        ww: '%d settimane',
+        M: 'un mese',
+        MM: '%d mesi',
+        y: 'un anno',
+        yy: '%d anni',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}º/,
+    ordinal: '%dº',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ja.js b/backend/node_modules/moment/src/locale/ja.js
new file mode 100644
index 0000000..abe921a
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ja.js
@@ -0,0 +1,148 @@
+//! moment.js locale configuration
+//! locale : Japanese [ja]
+//! author : LI Long : https://github.com/baryon
+
+import moment from '../moment';
+
+export default moment.defineLocale('ja', {
+    eras: [
+        {
+            since: '2019-05-01',
+            offset: 1,
+            name: '令和',
+            narrow: '㋿',
+            abbr: 'R',
+        },
+        {
+            since: '1989-01-08',
+            until: '2019-04-30',
+            offset: 1,
+            name: '平成',
+            narrow: '㍻',
+            abbr: 'H',
+        },
+        {
+            since: '1926-12-25',
+            until: '1989-01-07',
+            offset: 1,
+            name: '昭和',
+            narrow: '㍼',
+            abbr: 'S',
+        },
+        {
+            since: '1912-07-30',
+            until: '1926-12-24',
+            offset: 1,
+            name: '大正',
+            narrow: '㍽',
+            abbr: 'T',
+        },
+        {
+            since: '1873-01-01',
+            until: '1912-07-29',
+            offset: 6,
+            name: '明治',
+            narrow: '㍾',
+            abbr: 'M',
+        },
+        {
+            since: '0001-01-01',
+            until: '1873-12-31',
+            offset: 1,
+            name: '西暦',
+            narrow: 'AD',
+            abbr: 'AD',
+        },
+        {
+            since: '0000-12-31',
+            until: -Infinity,
+            offset: 1,
+            name: '紀元前',
+            narrow: 'BC',
+            abbr: 'BC',
+        },
+    ],
+    eraYearOrdinalRegex: /(元|\d+)年/,
+    eraYearOrdinalParse: function (input, match) {
+        return match[1] === '元' ? 1 : parseInt(match[1] || input, 10);
+    },
+    months: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split('_'),
+    monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+        '_'
+    ),
+    weekdays: '日曜日_月曜日_火曜日_水曜日_木曜日_金曜日_土曜日'.split('_'),
+    weekdaysShort: '日_月_火_水_木_金_土'.split('_'),
+    weekdaysMin: '日_月_火_水_木_金_土'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'YYYY/MM/DD',
+        LL: 'YYYY年M月D日',
+        LLL: 'YYYY年M月D日 HH:mm',
+        LLLL: 'YYYY年M月D日 dddd HH:mm',
+        l: 'YYYY/MM/DD',
+        ll: 'YYYY年M月D日',
+        lll: 'YYYY年M月D日 HH:mm',
+        llll: 'YYYY年M月D日(ddd) HH:mm',
+    },
+    meridiemParse: /午前|午後/i,
+    isPM: function (input) {
+        return input === '午後';
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return '午前';
+        } else {
+            return '午後';
+        }
+    },
+    calendar: {
+        sameDay: '[今日] LT',
+        nextDay: '[明日] LT',
+        nextWeek: function (now) {
+            if (now.week() !== this.week()) {
+                return '[来週]dddd LT';
+            } else {
+                return 'dddd LT';
+            }
+        },
+        lastDay: '[昨日] LT',
+        lastWeek: function (now) {
+            if (this.week() !== now.week()) {
+                return '[先週]dddd LT';
+            } else {
+                return 'dddd LT';
+            }
+        },
+        sameElse: 'L',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}日/,
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'y':
+                return number === 1 ? '元年' : number + '年';
+            case 'd':
+            case 'D':
+            case 'DDD':
+                return number + '日';
+            default:
+                return number;
+        }
+    },
+    relativeTime: {
+        future: '%s後',
+        past: '%s前',
+        s: '数秒',
+        ss: '%d秒',
+        m: '1分',
+        mm: '%d分',
+        h: '1時間',
+        hh: '%d時間',
+        d: '1日',
+        dd: '%d日',
+        M: '1ヶ月',
+        MM: '%dヶ月',
+        y: '1年',
+        yy: '%d年',
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/jv.js b/backend/node_modules/moment/src/locale/jv.js
new file mode 100644
index 0000000..b52f48d
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/jv.js
@@ -0,0 +1,76 @@
+//! moment.js locale configuration
+//! locale : Javanese [jv]
+//! author : Rony Lantip : https://github.com/lantip
+//! reference: http://jv.wikipedia.org/wiki/Basa_Jawa
+
+import moment from '../moment';
+
+export default moment.defineLocale('jv', {
+    months: 'Januari_Februari_Maret_April_Mei_Juni_Juli_Agustus_September_Oktober_Nopember_Desember'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mar_Apr_Mei_Jun_Jul_Ags_Sep_Okt_Nop_Des'.split('_'),
+    weekdays: 'Minggu_Senen_Seloso_Rebu_Kemis_Jemuwah_Septu'.split('_'),
+    weekdaysShort: 'Min_Sen_Sel_Reb_Kem_Jem_Sep'.split('_'),
+    weekdaysMin: 'Mg_Sn_Sl_Rb_Km_Jm_Sp'.split('_'),
+    longDateFormat: {
+        LT: 'HH.mm',
+        LTS: 'HH.mm.ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY [pukul] HH.mm',
+        LLLL: 'dddd, D MMMM YYYY [pukul] HH.mm',
+    },
+    meridiemParse: /enjing|siyang|sonten|ndalu/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'enjing') {
+            return hour;
+        } else if (meridiem === 'siyang') {
+            return hour >= 11 ? hour : hour + 12;
+        } else if (meridiem === 'sonten' || meridiem === 'ndalu') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hours, minutes, isLower) {
+        if (hours < 11) {
+            return 'enjing';
+        } else if (hours < 15) {
+            return 'siyang';
+        } else if (hours < 19) {
+            return 'sonten';
+        } else {
+            return 'ndalu';
+        }
+    },
+    calendar: {
+        sameDay: '[Dinten puniko pukul] LT',
+        nextDay: '[Mbenjang pukul] LT',
+        nextWeek: 'dddd [pukul] LT',
+        lastDay: '[Kala wingi pukul] LT',
+        lastWeek: 'dddd [kepengker pukul] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'wonten ing %s',
+        past: '%s ingkang kepengker',
+        s: 'sawetawis detik',
+        ss: '%d detik',
+        m: 'setunggal menit',
+        mm: '%d menit',
+        h: 'setunggal jam',
+        hh: '%d jam',
+        d: 'sedinten',
+        dd: '%d dinten',
+        M: 'sewulan',
+        MM: '%d wulan',
+        y: 'setaun',
+        yy: '%d taun',
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ka.js b/backend/node_modules/moment/src/locale/ka.js
new file mode 100644
index 0000000..15b6ead
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ka.js
@@ -0,0 +1,92 @@
+//! moment.js locale configuration
+//! locale : Georgian [ka]
+//! author : Irakli Janiashvili : https://github.com/IrakliJani
+
+import moment from '../moment';
+
+export default moment.defineLocale('ka', {
+    months: 'იანვარი_თებერვალი_მარტი_აპრილი_მაისი_ივნისი_ივლისი_აგვისტო_სექტემბერი_ოქტომბერი_ნოემბერი_დეკემბერი'.split(
+        '_'
+    ),
+    monthsShort: 'იან_თებ_მარ_აპრ_მაი_ივნ_ივლ_აგვ_სექ_ოქტ_ნოე_დეკ'.split('_'),
+    weekdays: {
+        standalone:
+            'კვირა_ორშაბათი_სამშაბათი_ოთხშაბათი_ხუთშაბათი_პარასკევი_შაბათი'.split(
+                '_'
+            ),
+        format: 'კვირას_ორშაბათს_სამშაბათს_ოთხშაბათს_ხუთშაბათს_პარასკევს_შაბათს'.split(
+            '_'
+        ),
+        isFormat: /(წინა|შემდეგ)/,
+    },
+    weekdaysShort: 'კვი_ორშ_სამ_ოთხ_ხუთ_პარ_შაბ'.split('_'),
+    weekdaysMin: 'კვ_ორ_სა_ოთ_ხუ_პა_შა'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[დღეს] LT[-ზე]',
+        nextDay: '[ხვალ] LT[-ზე]',
+        lastDay: '[გუშინ] LT[-ზე]',
+        nextWeek: '[შემდეგ] dddd LT[-ზე]',
+        lastWeek: '[წინა] dddd LT-ზე',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: function (s) {
+            return s.replace(
+                /(წამ|წუთ|საათ|წელ|დღ|თვ)(ი|ე)/,
+                function ($0, $1, $2) {
+                    return $2 === 'ი' ? $1 + 'ში' : $1 + $2 + 'ში';
+                }
+            );
+        },
+        past: function (s) {
+            if (/(წამი|წუთი|საათი|დღე|თვე)/.test(s)) {
+                return s.replace(/(ი|ე)$/, 'ის წინ');
+            }
+            if (/წელი/.test(s)) {
+                return s.replace(/წელი$/, 'წლის წინ');
+            }
+            return s;
+        },
+        s: 'რამდენიმე წამი',
+        ss: '%d წამი',
+        m: 'წუთი',
+        mm: '%d წუთი',
+        h: 'საათი',
+        hh: '%d საათი',
+        d: 'დღე',
+        dd: '%d დღე',
+        M: 'თვე',
+        MM: '%d თვე',
+        y: 'წელი',
+        yy: '%d წელი',
+    },
+    dayOfMonthOrdinalParse: /0|1-ლი|მე-\d{1,2}|\d{1,2}-ე/,
+    ordinal: function (number) {
+        if (number === 0) {
+            return number;
+        }
+        if (number === 1) {
+            return number + '-ლი';
+        }
+        if (
+            number < 20 ||
+            (number <= 100 && number % 20 === 0) ||
+            number % 100 === 0
+        ) {
+            return 'მე-' + number;
+        }
+        return number + '-ე';
+    },
+    week: {
+        dow: 1,
+        doy: 7,
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/kk.js b/backend/node_modules/moment/src/locale/kk.js
new file mode 100644
index 0000000..9cab152
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/kk.js
@@ -0,0 +1,82 @@
+//! moment.js locale configuration
+//! locale : Kazakh [kk]
+//! authors : Nurlan Rakhimzhanov : https://github.com/nurlan
+
+import moment from '../moment';
+
+var suffixes = {
+    0: '-ші',
+    1: '-ші',
+    2: '-ші',
+    3: '-ші',
+    4: '-ші',
+    5: '-ші',
+    6: '-шы',
+    7: '-ші',
+    8: '-ші',
+    9: '-шы',
+    10: '-шы',
+    20: '-шы',
+    30: '-шы',
+    40: '-шы',
+    50: '-ші',
+    60: '-шы',
+    70: '-ші',
+    80: '-ші',
+    90: '-шы',
+    100: '-ші',
+};
+
+export default moment.defineLocale('kk', {
+    months: 'қаңтар_ақпан_наурыз_сәуір_мамыр_маусым_шілде_тамыз_қыркүйек_қазан_қараша_желтоқсан'.split(
+        '_'
+    ),
+    monthsShort: 'қаң_ақп_нау_сәу_мам_мау_шіл_там_қыр_қаз_қар_жел'.split('_'),
+    weekdays: 'жексенбі_дүйсенбі_сейсенбі_сәрсенбі_бейсенбі_жұма_сенбі'.split(
+        '_'
+    ),
+    weekdaysShort: 'жек_дүй_сей_сәр_бей_жұм_сен'.split('_'),
+    weekdaysMin: 'жк_дй_сй_ср_бй_жм_сн'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Бүгін сағат] LT',
+        nextDay: '[Ертең сағат] LT',
+        nextWeek: 'dddd [сағат] LT',
+        lastDay: '[Кеше сағат] LT',
+        lastWeek: '[Өткен аптаның] dddd [сағат] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s ішінде',
+        past: '%s бұрын',
+        s: 'бірнеше секунд',
+        ss: '%d секунд',
+        m: 'бір минут',
+        mm: '%d минут',
+        h: 'бір сағат',
+        hh: '%d сағат',
+        d: 'бір күн',
+        dd: '%d күн',
+        M: 'бір ай',
+        MM: '%d ай',
+        y: 'бір жыл',
+        yy: '%d жыл',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}-(ші|шы)/,
+    ordinal: function (number) {
+        var a = number % 10,
+            b = number >= 100 ? 100 : null;
+        return number + (suffixes[number] || suffixes[a] || suffixes[b]);
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/km.js b/backend/node_modules/moment/src/locale/km.js
new file mode 100644
index 0000000..984c4dc
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/km.js
@@ -0,0 +1,103 @@
+//! moment.js locale configuration
+//! locale : Cambodian [km]
+//! author : Kruy Vanna : https://github.com/kruyvanna
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '១',
+        2: '២',
+        3: '៣',
+        4: '៤',
+        5: '៥',
+        6: '៦',
+        7: '៧',
+        8: '៨',
+        9: '៩',
+        0: '០',
+    },
+    numberMap = {
+        '១': '1',
+        '២': '2',
+        '៣': '3',
+        '៤': '4',
+        '៥': '5',
+        '៦': '6',
+        '៧': '7',
+        '៨': '8',
+        '៩': '9',
+        '០': '0',
+    };
+
+export default moment.defineLocale('km', {
+    months: 'មករា_កុម្ភៈ_មីនា_មេសា_ឧសភា_មិថុនា_កក្កដា_សីហា_កញ្ញា_តុលា_វិច្ឆិកា_ធ្នូ'.split(
+        '_'
+    ),
+    monthsShort:
+        'មករា_កុម្ភៈ_មីនា_មេសា_ឧសភា_មិថុនា_កក្កដា_សីហា_កញ្ញា_តុលា_វិច្ឆិកា_ធ្នូ'.split(
+            '_'
+        ),
+    weekdays: 'អាទិត្យ_ច័ន្ទ_អង្គារ_ពុធ_ព្រហស្បតិ៍_សុក្រ_សៅរ៍'.split('_'),
+    weekdaysShort: 'អា_ច_អ_ព_ព្រ_សុ_ស'.split('_'),
+    weekdaysMin: 'អា_ច_អ_ព_ព្រ_សុ_ស'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    meridiemParse: /ព្រឹក|ល្ងាច/,
+    isPM: function (input) {
+        return input === 'ល្ងាច';
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'ព្រឹក';
+        } else {
+            return 'ល្ងាច';
+        }
+    },
+    calendar: {
+        sameDay: '[ថ្ងៃនេះ ម៉ោង] LT',
+        nextDay: '[ស្អែក ម៉ោង] LT',
+        nextWeek: 'dddd [ម៉ោង] LT',
+        lastDay: '[ម្សិលមិញ ម៉ោង] LT',
+        lastWeek: 'dddd [សប្តាហ៍មុន] [ម៉ោង] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%sទៀត',
+        past: '%sមុន',
+        s: 'ប៉ុន្មានវិនាទី',
+        ss: '%d វិនាទី',
+        m: 'មួយនាទី',
+        mm: '%d នាទី',
+        h: 'មួយម៉ោង',
+        hh: '%d ម៉ោង',
+        d: 'មួយថ្ងៃ',
+        dd: '%d ថ្ងៃ',
+        M: 'មួយខែ',
+        MM: '%d ខែ',
+        y: 'មួយឆ្នាំ',
+        yy: '%d ឆ្នាំ',
+    },
+    dayOfMonthOrdinalParse: /ទី\d{1,2}/,
+    ordinal: 'ទី%d',
+    preparse: function (string) {
+        return string.replace(/[១២៣៤៥៦៧៨៩០]/g, function (match) {
+            return numberMap[match];
+        });
+    },
+    postformat: function (string) {
+        return string.replace(/\d/g, function (match) {
+            return symbolMap[match];
+        });
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/kn.js b/backend/node_modules/moment/src/locale/kn.js
new file mode 100644
index 0000000..e7cb354
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/kn.js
@@ -0,0 +1,124 @@
+//! moment.js locale configuration
+//! locale : Kannada [kn]
+//! author : Rajeev Naik : https://github.com/rajeevnaikte
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '೧',
+        2: '೨',
+        3: '೩',
+        4: '೪',
+        5: '೫',
+        6: '೬',
+        7: '೭',
+        8: '೮',
+        9: '೯',
+        0: '೦',
+    },
+    numberMap = {
+        '೧': '1',
+        '೨': '2',
+        '೩': '3',
+        '೪': '4',
+        '೫': '5',
+        '೬': '6',
+        '೭': '7',
+        '೮': '8',
+        '೯': '9',
+        '೦': '0',
+    };
+
+export default moment.defineLocale('kn', {
+    months: 'ಜನವರಿ_ಫೆಬ್ರವರಿ_ಮಾರ್ಚ್_ಏಪ್ರಿಲ್_ಮೇ_ಜೂನ್_ಜುಲೈ_ಆಗಸ್ಟ್_ಸೆಪ್ಟೆಂಬರ್_ಅಕ್ಟೋಬರ್_ನವೆಂಬರ್_ಡಿಸೆಂಬರ್'.split(
+        '_'
+    ),
+    monthsShort:
+        'ಜನ_ಫೆಬ್ರ_ಮಾರ್ಚ್_ಏಪ್ರಿಲ್_ಮೇ_ಜೂನ್_ಜುಲೈ_ಆಗಸ್ಟ್_ಸೆಪ್ಟೆಂ_ಅಕ್ಟೋ_ನವೆಂ_ಡಿಸೆಂ'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'ಭಾನುವಾರ_ಸೋಮವಾರ_ಮಂಗಳವಾರ_ಬುಧವಾರ_ಗುರುವಾರ_ಶುಕ್ರವಾರ_ಶನಿವಾರ'.split(
+        '_'
+    ),
+    weekdaysShort: 'ಭಾನು_ಸೋಮ_ಮಂಗಳ_ಬುಧ_ಗುರು_ಶುಕ್ರ_ಶನಿ'.split('_'),
+    weekdaysMin: 'ಭಾ_ಸೋ_ಮಂ_ಬು_ಗು_ಶು_ಶ'.split('_'),
+    longDateFormat: {
+        LT: 'A h:mm',
+        LTS: 'A h:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY, A h:mm',
+        LLLL: 'dddd, D MMMM YYYY, A h:mm',
+    },
+    calendar: {
+        sameDay: '[ಇಂದು] LT',
+        nextDay: '[ನಾಳೆ] LT',
+        nextWeek: 'dddd, LT',
+        lastDay: '[ನಿನ್ನೆ] LT',
+        lastWeek: '[ಕೊನೆಯ] dddd, LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s ನಂತರ',
+        past: '%s ಹಿಂದೆ',
+        s: 'ಕೆಲವು ಕ್ಷಣಗಳು',
+        ss: '%d ಸೆಕೆಂಡುಗಳು',
+        m: 'ಒಂದು ನಿಮಿಷ',
+        mm: '%d ನಿಮಿಷ',
+        h: 'ಒಂದು ಗಂಟೆ',
+        hh: '%d ಗಂಟೆ',
+        d: 'ಒಂದು ದಿನ',
+        dd: '%d ದಿನ',
+        M: 'ಒಂದು ತಿಂಗಳು',
+        MM: '%d ತಿಂಗಳು',
+        y: 'ಒಂದು ವರ್ಷ',
+        yy: '%d ವರ್ಷ',
+    },
+    preparse: function (string) {
+        return string.replace(/[೧೨೩೪೫೬೭೮೯೦]/g, function (match) {
+            return numberMap[match];
+        });
+    },
+    postformat: function (string) {
+        return string.replace(/\d/g, function (match) {
+            return symbolMap[match];
+        });
+    },
+    meridiemParse: /ರಾತ್ರಿ|ಬೆಳಿಗ್ಗೆ|ಮಧ್ಯಾಹ್ನ|ಸಂಜೆ/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'ರಾತ್ರಿ') {
+            return hour < 4 ? hour : hour + 12;
+        } else if (meridiem === 'ಬೆಳಿಗ್ಗೆ') {
+            return hour;
+        } else if (meridiem === 'ಮಧ್ಯಾಹ್ನ') {
+            return hour >= 10 ? hour : hour + 12;
+        } else if (meridiem === 'ಸಂಜೆ') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'ರಾತ್ರಿ';
+        } else if (hour < 10) {
+            return 'ಬೆಳಿಗ್ಗೆ';
+        } else if (hour < 17) {
+            return 'ಮಧ್ಯಾಹ್ನ';
+        } else if (hour < 20) {
+            return 'ಸಂಜೆ';
+        } else {
+            return 'ರಾತ್ರಿ';
+        }
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(ನೇ)/,
+    ordinal: function (number) {
+        return number + 'ನೇ';
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ko.js b/backend/node_modules/moment/src/locale/ko.js
new file mode 100644
index 0000000..c45f3e3
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ko.js
@@ -0,0 +1,75 @@
+//! moment.js locale configuration
+//! locale : Korean [ko]
+//! author : Kyungwook, Park : https://github.com/kyungw00k
+//! author : Jeeeyul Lee <jeeeyul@gmail.com>
+
+import moment from '../moment';
+
+export default moment.defineLocale('ko', {
+    months: '1월_2월_3월_4월_5월_6월_7월_8월_9월_10월_11월_12월'.split('_'),
+    monthsShort: '1월_2월_3월_4월_5월_6월_7월_8월_9월_10월_11월_12월'.split(
+        '_'
+    ),
+    weekdays: '일요일_월요일_화요일_수요일_목요일_금요일_토요일'.split('_'),
+    weekdaysShort: '일_월_화_수_목_금_토'.split('_'),
+    weekdaysMin: '일_월_화_수_목_금_토'.split('_'),
+    longDateFormat: {
+        LT: 'A h:mm',
+        LTS: 'A h:mm:ss',
+        L: 'YYYY.MM.DD.',
+        LL: 'YYYY년 MMMM D일',
+        LLL: 'YYYY년 MMMM D일 A h:mm',
+        LLLL: 'YYYY년 MMMM D일 dddd A h:mm',
+        l: 'YYYY.MM.DD.',
+        ll: 'YYYY년 MMMM D일',
+        lll: 'YYYY년 MMMM D일 A h:mm',
+        llll: 'YYYY년 MMMM D일 dddd A h:mm',
+    },
+    calendar: {
+        sameDay: '오늘 LT',
+        nextDay: '내일 LT',
+        nextWeek: 'dddd LT',
+        lastDay: '어제 LT',
+        lastWeek: '지난주 dddd LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s 후',
+        past: '%s 전',
+        s: '몇 초',
+        ss: '%d초',
+        m: '1분',
+        mm: '%d분',
+        h: '한 시간',
+        hh: '%d시간',
+        d: '하루',
+        dd: '%d일',
+        M: '한 달',
+        MM: '%d달',
+        y: '일 년',
+        yy: '%d년',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(일|월|주)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'd':
+            case 'D':
+            case 'DDD':
+                return number + '일';
+            case 'M':
+                return number + '월';
+            case 'w':
+            case 'W':
+                return number + '주';
+            default:
+                return number;
+        }
+    },
+    meridiemParse: /오전|오후/,
+    isPM: function (token) {
+        return token === '오후';
+    },
+    meridiem: function (hour, minute, isUpper) {
+        return hour < 12 ? '오전' : '오후';
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ku-kmr.js b/backend/node_modules/moment/src/locale/ku-kmr.js
new file mode 100644
index 0000000..87ad603
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ku-kmr.js
@@ -0,0 +1,121 @@
+//! moment.js locale configuration
+//! locale : Northern Kurdish [ku-kmr]
+//! authors : Mazlum Özdogan : https://github.com/mergehez
+
+// All rules except for month names are according to
+// the spelling rules which are defined in the book 'Rêbera Rastnivîsînê' from Komxebata Kurmancîyê.
+// Komxebata Kurmancîyê is a work group that studied different uses in Kurdish language (Kurmanji/Northern Kurdish),
+// chose one of alternatives as standard and publish them via their book.
+// There are 18 Kurdish linguists in the group.
+// The group was formed by Mesopotamia Foundation
+
+import moment from '../moment';
+
+function processRelativeTime(num, withoutSuffix, key, isFuture) {
+    var format = {
+        s: ['çend sanîye', 'çend sanîyeyan'],
+        ss: [num + ' sanîye', num + ' sanîyeyan'],
+        m: ['deqîqeyek', 'deqîqeyekê'],
+        mm: [num + ' deqîqe', num + ' deqîqeyan'],
+        h: ['saetek', 'saetekê'],
+        hh: [num + ' saet', num + ' saetan'],
+        d: ['rojek', 'rojekê'],
+        dd: [num + ' roj', num + ' rojan'],
+        w: ['hefteyek', 'hefteyekê'],
+        ww: [num + ' hefte', num + ' hefteyan'],
+        M: ['mehek', 'mehekê'],
+        MM: [num + ' meh', num + ' mehan'],
+        y: ['salek', 'salekê'],
+        yy: [num + ' sal', num + ' salan'],
+    };
+    return withoutSuffix ? format[key][0] : format[key][1];
+}
+// function obliqueNumSuffix(num) {
+//     if(num.includes(':'))
+//         num = parseInt(num.split(':')[0]);
+//     else
+//         num = parseInt(num);
+//     return num == 0 || num % 10 == 1 ? 'ê'
+//                         : (num > 10 && num % 10 == 0 ? 'î' : 'an');
+// }
+function ezafeNumSuffix(num) {
+    num = '' + num;
+    var l = num.substring(num.length - 1),
+        ll = num.length > 1 ? num.substring(num.length - 2) : '';
+    if (
+        !(ll == 12 || ll == 13) &&
+        (l == '2' || l == '3' || ll == '50' || l == '70' || l == '80')
+    )
+        return 'yê';
+    return 'ê';
+}
+
+export default moment.defineLocale('ku-kmr', {
+    // According to the spelling rules defined by the work group of Weqfa Mezopotamyayê (Mesopotamia Foundation)
+    // this should be: 'Kanûna Paşîn_Sibat_Adar_Nîsan_Gulan_Hezîran_Tîrmeh_Tebax_Îlon_Çirîya Pêşîn_Çirîya Paşîn_Kanûna Pêşîn'
+    // But the names below are more well known and handy
+    months: 'Rêbendan_Sibat_Adar_Nîsan_Gulan_Hezîran_Tîrmeh_Tebax_Îlon_Cotmeh_Mijdar_Berfanbar'.split(
+        '_'
+    ),
+    monthsShort: 'Rêb_Sib_Ada_Nîs_Gul_Hez_Tîr_Teb_Îlo_Cot_Mij_Ber'.split('_'),
+    monthsParseExact: true,
+    weekdays: 'Yekşem_Duşem_Sêşem_Çarşem_Pêncşem_În_Şemî'.split('_'),
+    weekdaysShort: 'Yek_Du_Sê_Çar_Pên_În_Şem'.split('_'),
+    weekdaysMin: 'Ye_Du_Sê_Ça_Pê_În_Şe'.split('_'),
+    meridiem: function (hours, minutes, isLower) {
+        if (hours < 12) {
+            return isLower ? 'bn' : 'BN';
+        } else {
+            return isLower ? 'pn' : 'PN';
+        }
+    },
+    meridiemParse: /bn|BN|pn|PN/,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'Do MMMM[a] YYYY[an]',
+        LLL: 'Do MMMM[a] YYYY[an] HH:mm',
+        LLLL: 'dddd, Do MMMM[a] YYYY[an] HH:mm',
+        ll: 'Do MMM[.] YYYY[an]',
+        lll: 'Do MMM[.] YYYY[an] HH:mm',
+        llll: 'ddd[.], Do MMM[.] YYYY[an] HH:mm',
+    },
+    calendar: {
+        sameDay: '[Îro di saet] LT [de]',
+        nextDay: '[Sibê di saet] LT [de]',
+        nextWeek: 'dddd [di saet] LT [de]',
+        lastDay: '[Duh di saet] LT [de]',
+        lastWeek: 'dddd[a borî di saet] LT [de]',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'di %s de',
+        past: 'berî %s',
+        s: processRelativeTime,
+        ss: processRelativeTime,
+        m: processRelativeTime,
+        mm: processRelativeTime,
+        h: processRelativeTime,
+        hh: processRelativeTime,
+        d: processRelativeTime,
+        dd: processRelativeTime,
+        w: processRelativeTime,
+        ww: processRelativeTime,
+        M: processRelativeTime,
+        MM: processRelativeTime,
+        y: processRelativeTime,
+        yy: processRelativeTime,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(?:yê|ê|\.)/,
+    ordinal: function (num, period) {
+        var p = period.toLowerCase();
+        if (p.includes('w') || p.includes('m')) return num + '.';
+
+        return num + ezafeNumSuffix(num);
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ku.js b/backend/node_modules/moment/src/locale/ku.js
new file mode 100644
index 0000000..e705f01
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ku.js
@@ -0,0 +1,118 @@
+//! moment.js locale configuration
+//! locale : Kurdish [ku]
+//! author : Shahram Mebashar : https://github.com/ShahramMebashar
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '١',
+        2: '٢',
+        3: '٣',
+        4: '٤',
+        5: '٥',
+        6: '٦',
+        7: '٧',
+        8: '٨',
+        9: '٩',
+        0: '٠',
+    },
+    numberMap = {
+        '١': '1',
+        '٢': '2',
+        '٣': '3',
+        '٤': '4',
+        '٥': '5',
+        '٦': '6',
+        '٧': '7',
+        '٨': '8',
+        '٩': '9',
+        '٠': '0',
+    },
+    months = [
+        'کانونی دووەم',
+        'شوبات',
+        'ئازار',
+        'نیسان',
+        'ئایار',
+        'حوزەیران',
+        'تەمموز',
+        'ئاب',
+        'ئەیلوول',
+        'تشرینی یەكەم',
+        'تشرینی دووەم',
+        'كانونی یەکەم',
+    ];
+
+export default moment.defineLocale('ku', {
+    months: months,
+    monthsShort: months,
+    weekdays:
+        'یه‌كشه‌ممه‌_دووشه‌ممه‌_سێشه‌ممه‌_چوارشه‌ممه‌_پێنجشه‌ممه‌_هه‌ینی_شه‌ممه‌'.split(
+            '_'
+        ),
+    weekdaysShort:
+        'یه‌كشه‌م_دووشه‌م_سێشه‌م_چوارشه‌م_پێنجشه‌م_هه‌ینی_شه‌ممه‌'.split('_'),
+    weekdaysMin: 'ی_د_س_چ_پ_ه_ش'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    meridiemParse: /ئێواره‌|به‌یانی/,
+    isPM: function (input) {
+        return /ئێواره‌/.test(input);
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'به‌یانی';
+        } else {
+            return 'ئێواره‌';
+        }
+    },
+    calendar: {
+        sameDay: '[ئه‌مرۆ كاتژمێر] LT',
+        nextDay: '[به‌یانی كاتژمێر] LT',
+        nextWeek: 'dddd [كاتژمێر] LT',
+        lastDay: '[دوێنێ كاتژمێر] LT',
+        lastWeek: 'dddd [كاتژمێر] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'له‌ %s',
+        past: '%s',
+        s: 'چه‌ند چركه‌یه‌ك',
+        ss: 'چركه‌ %d',
+        m: 'یه‌ك خوله‌ك',
+        mm: '%d خوله‌ك',
+        h: 'یه‌ك كاتژمێر',
+        hh: '%d كاتژمێر',
+        d: 'یه‌ك ڕۆژ',
+        dd: '%d ڕۆژ',
+        M: 'یه‌ك مانگ',
+        MM: '%d مانگ',
+        y: 'یه‌ك ساڵ',
+        yy: '%d ساڵ',
+    },
+    preparse: function (string) {
+        return string
+            .replace(/[١٢٣٤٥٦٧٨٩٠]/g, function (match) {
+                return numberMap[match];
+            })
+            .replace(/،/g, ',');
+    },
+    postformat: function (string) {
+        return string
+            .replace(/\d/g, function (match) {
+                return symbolMap[match];
+            })
+            .replace(/,/g, '،');
+    },
+    week: {
+        dow: 6, // Saturday is the first day of the week.
+        doy: 12, // The week that contains Jan 12th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ky.js b/backend/node_modules/moment/src/locale/ky.js
new file mode 100644
index 0000000..2108d09
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ky.js
@@ -0,0 +1,84 @@
+//! moment.js locale configuration
+//! locale : Kyrgyz [ky]
+//! author : Chyngyz Arystan uulu : https://github.com/chyngyz
+
+import moment from '../moment';
+
+var suffixes = {
+    0: '-чү',
+    1: '-чи',
+    2: '-чи',
+    3: '-чү',
+    4: '-чү',
+    5: '-чи',
+    6: '-чы',
+    7: '-чи',
+    8: '-чи',
+    9: '-чу',
+    10: '-чу',
+    20: '-чы',
+    30: '-чу',
+    40: '-чы',
+    50: '-чү',
+    60: '-чы',
+    70: '-чи',
+    80: '-чи',
+    90: '-чу',
+    100: '-чү',
+};
+
+export default moment.defineLocale('ky', {
+    months: 'январь_февраль_март_апрель_май_июнь_июль_август_сентябрь_октябрь_ноябрь_декабрь'.split(
+        '_'
+    ),
+    monthsShort: 'янв_фев_март_апр_май_июнь_июль_авг_сен_окт_ноя_дек'.split(
+        '_'
+    ),
+    weekdays: 'Жекшемби_Дүйшөмбү_Шейшемби_Шаршемби_Бейшемби_Жума_Ишемби'.split(
+        '_'
+    ),
+    weekdaysShort: 'Жек_Дүй_Шей_Шар_Бей_Жум_Ише'.split('_'),
+    weekdaysMin: 'Жк_Дй_Шй_Шр_Бй_Жм_Иш'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Бүгүн саат] LT',
+        nextDay: '[Эртең саат] LT',
+        nextWeek: 'dddd [саат] LT',
+        lastDay: '[Кечээ саат] LT',
+        lastWeek: '[Өткөн аптанын] dddd [күнү] [саат] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s ичинде',
+        past: '%s мурун',
+        s: 'бирнече секунд',
+        ss: '%d секунд',
+        m: 'бир мүнөт',
+        mm: '%d мүнөт',
+        h: 'бир саат',
+        hh: '%d саат',
+        d: 'бир күн',
+        dd: '%d күн',
+        M: 'бир ай',
+        MM: '%d ай',
+        y: 'бир жыл',
+        yy: '%d жыл',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}-(чи|чы|чү|чу)/,
+    ordinal: function (number) {
+        var a = number % 10,
+            b = number >= 100 ? 100 : null;
+        return number + (suffixes[number] || suffixes[a] || suffixes[b]);
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/lb.js b/backend/node_modules/moment/src/locale/lb.js
new file mode 100644
index 0000000..f01e662
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/lb.js
@@ -0,0 +1,137 @@
+//! moment.js locale configuration
+//! locale : Luxembourgish [lb]
+//! author : mweimerskirch : https://github.com/mweimerskirch
+//! author : David Raison : https://github.com/kwisatz
+
+import moment from '../moment';
+
+function processRelativeTime(number, withoutSuffix, key, isFuture) {
+    var format = {
+        m: ['eng Minutt', 'enger Minutt'],
+        h: ['eng Stonn', 'enger Stonn'],
+        d: ['een Dag', 'engem Dag'],
+        M: ['ee Mount', 'engem Mount'],
+        y: ['ee Joer', 'engem Joer'],
+    };
+    return withoutSuffix ? format[key][0] : format[key][1];
+}
+function processFutureTime(string) {
+    var number = string.substr(0, string.indexOf(' '));
+    if (eifelerRegelAppliesToNumber(number)) {
+        return 'a ' + string;
+    }
+    return 'an ' + string;
+}
+function processPastTime(string) {
+    var number = string.substr(0, string.indexOf(' '));
+    if (eifelerRegelAppliesToNumber(number)) {
+        return 'viru ' + string;
+    }
+    return 'virun ' + string;
+}
+/**
+ * Returns true if the word before the given number loses the '-n' ending.
+ * e.g. 'an 10 Deeg' but 'a 5 Deeg'
+ *
+ * @param number {integer}
+ * @returns {boolean}
+ */
+function eifelerRegelAppliesToNumber(number) {
+    number = parseInt(number, 10);
+    if (isNaN(number)) {
+        return false;
+    }
+    if (number < 0) {
+        // Negative Number --> always true
+        return true;
+    } else if (number < 10) {
+        // Only 1 digit
+        if (4 <= number && number <= 7) {
+            return true;
+        }
+        return false;
+    } else if (number < 100) {
+        // 2 digits
+        var lastDigit = number % 10,
+            firstDigit = number / 10;
+        if (lastDigit === 0) {
+            return eifelerRegelAppliesToNumber(firstDigit);
+        }
+        return eifelerRegelAppliesToNumber(lastDigit);
+    } else if (number < 10000) {
+        // 3 or 4 digits --> recursively check first digit
+        while (number >= 10) {
+            number = number / 10;
+        }
+        return eifelerRegelAppliesToNumber(number);
+    } else {
+        // Anything larger than 4 digits: recursively check first n-3 digits
+        number = number / 1000;
+        return eifelerRegelAppliesToNumber(number);
+    }
+}
+
+export default moment.defineLocale('lb', {
+    months: 'Januar_Februar_Mäerz_Abrëll_Mee_Juni_Juli_August_September_Oktober_November_Dezember'.split(
+        '_'
+    ),
+    monthsShort:
+        'Jan._Febr._Mrz._Abr._Mee_Jun._Jul._Aug._Sept._Okt._Nov._Dez.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays:
+        'Sonndeg_Méindeg_Dënschdeg_Mëttwoch_Donneschdeg_Freideg_Samschdeg'.split(
+            '_'
+        ),
+    weekdaysShort: 'So._Mé._Dë._Më._Do._Fr._Sa.'.split('_'),
+    weekdaysMin: 'So_Mé_Dë_Më_Do_Fr_Sa'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm [Auer]',
+        LTS: 'H:mm:ss [Auer]',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY H:mm [Auer]',
+        LLLL: 'dddd, D. MMMM YYYY H:mm [Auer]',
+    },
+    calendar: {
+        sameDay: '[Haut um] LT',
+        sameElse: 'L',
+        nextDay: '[Muer um] LT',
+        nextWeek: 'dddd [um] LT',
+        lastDay: '[Gëschter um] LT',
+        lastWeek: function () {
+            // Different date string for 'Dënschdeg' (Tuesday) and 'Donneschdeg' (Thursday) due to phonological rule
+            switch (this.day()) {
+                case 2:
+                case 4:
+                    return '[Leschten] dddd [um] LT';
+                default:
+                    return '[Leschte] dddd [um] LT';
+            }
+        },
+    },
+    relativeTime: {
+        future: processFutureTime,
+        past: processPastTime,
+        s: 'e puer Sekonnen',
+        ss: '%d Sekonnen',
+        m: processRelativeTime,
+        mm: '%d Minutten',
+        h: processRelativeTime,
+        hh: '%d Stonnen',
+        d: processRelativeTime,
+        dd: '%d Deeg',
+        M: processRelativeTime,
+        MM: '%d Méint',
+        y: processRelativeTime,
+        yy: '%d Joer',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/lo.js b/backend/node_modules/moment/src/locale/lo.js
new file mode 100644
index 0000000..cd6cc20
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/lo.js
@@ -0,0 +1,66 @@
+//! moment.js locale configuration
+//! locale : Lao [lo]
+//! author : Ryan Hart : https://github.com/ryanhart2
+
+import moment from '../moment';
+
+export default moment.defineLocale('lo', {
+    months: 'ມັງກອນ_ກຸມພາ_ມີນາ_ເມສາ_ພຶດສະພາ_ມິຖຸນາ_ກໍລະກົດ_ສິງຫາ_ກັນຍາ_ຕຸລາ_ພະຈິກ_ທັນວາ'.split(
+        '_'
+    ),
+    monthsShort:
+        'ມັງກອນ_ກຸມພາ_ມີນາ_ເມສາ_ພຶດສະພາ_ມິຖຸນາ_ກໍລະກົດ_ສິງຫາ_ກັນຍາ_ຕຸລາ_ພະຈິກ_ທັນວາ'.split(
+            '_'
+        ),
+    weekdays: 'ອາທິດ_ຈັນ_ອັງຄານ_ພຸດ_ພະຫັດ_ສຸກ_ເສົາ'.split('_'),
+    weekdaysShort: 'ທິດ_ຈັນ_ອັງຄານ_ພຸດ_ພະຫັດ_ສຸກ_ເສົາ'.split('_'),
+    weekdaysMin: 'ທ_ຈ_ອຄ_ພ_ພຫ_ສກ_ສ'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'ວັນdddd D MMMM YYYY HH:mm',
+    },
+    meridiemParse: /ຕອນເຊົ້າ|ຕອນແລງ/,
+    isPM: function (input) {
+        return input === 'ຕອນແລງ';
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'ຕອນເຊົ້າ';
+        } else {
+            return 'ຕອນແລງ';
+        }
+    },
+    calendar: {
+        sameDay: '[ມື້ນີ້ເວລາ] LT',
+        nextDay: '[ມື້ອື່ນເວລາ] LT',
+        nextWeek: '[ວັນ]dddd[ໜ້າເວລາ] LT',
+        lastDay: '[ມື້ວານນີ້ເວລາ] LT',
+        lastWeek: '[ວັນ]dddd[ແລ້ວນີ້ເວລາ] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'ອີກ %s',
+        past: '%sຜ່ານມາ',
+        s: 'ບໍ່ເທົ່າໃດວິນາທີ',
+        ss: '%d ວິນາທີ',
+        m: '1 ນາທີ',
+        mm: '%d ນາທີ',
+        h: '1 ຊົ່ວໂມງ',
+        hh: '%d ຊົ່ວໂມງ',
+        d: '1 ມື້',
+        dd: '%d ມື້',
+        M: '1 ເດືອນ',
+        MM: '%d ເດືອນ',
+        y: '1 ປີ',
+        yy: '%d ປີ',
+    },
+    dayOfMonthOrdinalParse: /(ທີ່)\d{1,2}/,
+    ordinal: function (number) {
+        return 'ທີ່' + number;
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/lt.js b/backend/node_modules/moment/src/locale/lt.js
new file mode 100644
index 0000000..83c1595
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/lt.js
@@ -0,0 +1,125 @@
+//! moment.js locale configuration
+//! locale : Lithuanian [lt]
+//! author : Mindaugas Mozūras : https://github.com/mmozuras
+
+import moment from '../moment';
+
+var units = {
+    ss: 'sekundė_sekundžių_sekundes',
+    m: 'minutė_minutės_minutę',
+    mm: 'minutės_minučių_minutes',
+    h: 'valanda_valandos_valandą',
+    hh: 'valandos_valandų_valandas',
+    d: 'diena_dienos_dieną',
+    dd: 'dienos_dienų_dienas',
+    M: 'mėnuo_mėnesio_mėnesį',
+    MM: 'mėnesiai_mėnesių_mėnesius',
+    y: 'metai_metų_metus',
+    yy: 'metai_metų_metus',
+};
+function translateSeconds(number, withoutSuffix, key, isFuture) {
+    if (withoutSuffix) {
+        return 'kelios sekundės';
+    } else {
+        return isFuture ? 'kelių sekundžių' : 'kelias sekundes';
+    }
+}
+function translateSingular(number, withoutSuffix, key, isFuture) {
+    return withoutSuffix
+        ? forms(key)[0]
+        : isFuture
+          ? forms(key)[1]
+          : forms(key)[2];
+}
+function special(number) {
+    return number % 10 === 0 || (number > 10 && number < 20);
+}
+function forms(key) {
+    return units[key].split('_');
+}
+function translate(number, withoutSuffix, key, isFuture) {
+    var result = number + ' ';
+    if (number === 1) {
+        return (
+            result + translateSingular(number, withoutSuffix, key[0], isFuture)
+        );
+    } else if (withoutSuffix) {
+        return result + (special(number) ? forms(key)[1] : forms(key)[0]);
+    } else {
+        if (isFuture) {
+            return result + forms(key)[1];
+        } else {
+            return result + (special(number) ? forms(key)[1] : forms(key)[2]);
+        }
+    }
+}
+export default moment.defineLocale('lt', {
+    months: {
+        format: 'sausio_vasario_kovo_balandžio_gegužės_birželio_liepos_rugpjūčio_rugsėjo_spalio_lapkričio_gruodžio'.split(
+            '_'
+        ),
+        standalone:
+            'sausis_vasaris_kovas_balandis_gegužė_birželis_liepa_rugpjūtis_rugsėjis_spalis_lapkritis_gruodis'.split(
+                '_'
+            ),
+        isFormat: /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?|MMMM?(\[[^\[\]]*\]|\s)+D[oD]?/,
+    },
+    monthsShort: 'sau_vas_kov_bal_geg_bir_lie_rgp_rgs_spa_lap_grd'.split('_'),
+    weekdays: {
+        format: 'sekmadienį_pirmadienį_antradienį_trečiadienį_ketvirtadienį_penktadienį_šeštadienį'.split(
+            '_'
+        ),
+        standalone:
+            'sekmadienis_pirmadienis_antradienis_trečiadienis_ketvirtadienis_penktadienis_šeštadienis'.split(
+                '_'
+            ),
+        isFormat: /dddd HH:mm/,
+    },
+    weekdaysShort: 'Sek_Pir_Ant_Tre_Ket_Pen_Šeš'.split('_'),
+    weekdaysMin: 'S_P_A_T_K_Pn_Š'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'YYYY-MM-DD',
+        LL: 'YYYY [m.] MMMM D [d.]',
+        LLL: 'YYYY [m.] MMMM D [d.], HH:mm [val.]',
+        LLLL: 'YYYY [m.] MMMM D [d.], dddd, HH:mm [val.]',
+        l: 'YYYY-MM-DD',
+        ll: 'YYYY [m.] MMMM D [d.]',
+        lll: 'YYYY [m.] MMMM D [d.], HH:mm [val.]',
+        llll: 'YYYY [m.] MMMM D [d.], ddd, HH:mm [val.]',
+    },
+    calendar: {
+        sameDay: '[Šiandien] LT',
+        nextDay: '[Rytoj] LT',
+        nextWeek: 'dddd LT',
+        lastDay: '[Vakar] LT',
+        lastWeek: '[Praėjusį] dddd LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'po %s',
+        past: 'prieš %s',
+        s: translateSeconds,
+        ss: translate,
+        m: translateSingular,
+        mm: translate,
+        h: translateSingular,
+        hh: translate,
+        d: translateSingular,
+        dd: translate,
+        M: translateSingular,
+        MM: translate,
+        y: translateSingular,
+        yy: translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}-oji/,
+    ordinal: function (number) {
+        return number + '-oji';
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/lv.js b/backend/node_modules/moment/src/locale/lv.js
new file mode 100644
index 0000000..3a89653
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/lv.js
@@ -0,0 +1,94 @@
+//! moment.js locale configuration
+//! locale : Latvian [lv]
+//! author : Kristaps Karlsons : https://github.com/skakri
+//! author : Jānis Elmeris : https://github.com/JanisE
+
+import moment from '../moment';
+
+var units = {
+    ss: 'sekundes_sekundēm_sekunde_sekundes'.split('_'),
+    m: 'minūtes_minūtēm_minūte_minūtes'.split('_'),
+    mm: 'minūtes_minūtēm_minūte_minūtes'.split('_'),
+    h: 'stundas_stundām_stunda_stundas'.split('_'),
+    hh: 'stundas_stundām_stunda_stundas'.split('_'),
+    d: 'dienas_dienām_diena_dienas'.split('_'),
+    dd: 'dienas_dienām_diena_dienas'.split('_'),
+    M: 'mēneša_mēnešiem_mēnesis_mēneši'.split('_'),
+    MM: 'mēneša_mēnešiem_mēnesis_mēneši'.split('_'),
+    y: 'gada_gadiem_gads_gadi'.split('_'),
+    yy: 'gada_gadiem_gads_gadi'.split('_'),
+};
+/**
+ * @param withoutSuffix boolean true = a length of time; false = before/after a period of time.
+ */
+function format(forms, number, withoutSuffix) {
+    if (withoutSuffix) {
+        // E.g. "21 minūte", "3 minūtes".
+        return number % 10 === 1 && number % 100 !== 11 ? forms[2] : forms[3];
+    } else {
+        // E.g. "21 minūtes" as in "pēc 21 minūtes".
+        // E.g. "3 minūtēm" as in "pēc 3 minūtēm".
+        return number % 10 === 1 && number % 100 !== 11 ? forms[0] : forms[1];
+    }
+}
+function relativeTimeWithPlural(number, withoutSuffix, key) {
+    return number + ' ' + format(units[key], number, withoutSuffix);
+}
+function relativeTimeWithSingular(number, withoutSuffix, key) {
+    return format(units[key], number, withoutSuffix);
+}
+function relativeSeconds(number, withoutSuffix) {
+    return withoutSuffix ? 'dažas sekundes' : 'dažām sekundēm';
+}
+
+export default moment.defineLocale('lv', {
+    months: 'janvāris_februāris_marts_aprīlis_maijs_jūnijs_jūlijs_augusts_septembris_oktobris_novembris_decembris'.split(
+        '_'
+    ),
+    monthsShort: 'jan_feb_mar_apr_mai_jūn_jūl_aug_sep_okt_nov_dec'.split('_'),
+    weekdays:
+        'svētdiena_pirmdiena_otrdiena_trešdiena_ceturtdiena_piektdiena_sestdiena'.split(
+            '_'
+        ),
+    weekdaysShort: 'Sv_P_O_T_C_Pk_S'.split('_'),
+    weekdaysMin: 'Sv_P_O_T_C_Pk_S'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY.',
+        LL: 'YYYY. [gada] D. MMMM',
+        LLL: 'YYYY. [gada] D. MMMM, HH:mm',
+        LLLL: 'YYYY. [gada] D. MMMM, dddd, HH:mm',
+    },
+    calendar: {
+        sameDay: '[Šodien pulksten] LT',
+        nextDay: '[Rīt pulksten] LT',
+        nextWeek: 'dddd [pulksten] LT',
+        lastDay: '[Vakar pulksten] LT',
+        lastWeek: '[Pagājušā] dddd [pulksten] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'pēc %s',
+        past: 'pirms %s',
+        s: relativeSeconds,
+        ss: relativeTimeWithPlural,
+        m: relativeTimeWithSingular,
+        mm: relativeTimeWithPlural,
+        h: relativeTimeWithSingular,
+        hh: relativeTimeWithPlural,
+        d: relativeTimeWithSingular,
+        dd: relativeTimeWithPlural,
+        M: relativeTimeWithSingular,
+        MM: relativeTimeWithPlural,
+        y: relativeTimeWithSingular,
+        yy: relativeTimeWithPlural,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/me.js b/backend/node_modules/moment/src/locale/me.js
new file mode 100644
index 0000000..e22c8d9
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/me.js
@@ -0,0 +1,117 @@
+//! moment.js locale configuration
+//! locale : Montenegrin [me]
+//! author : Miodrag Nikač <miodrag@restartit.me> : https://github.com/miodragnikac
+
+import moment from '../moment';
+
+var translator = {
+    words: {
+        //Different grammatical cases
+        ss: ['sekund', 'sekunda', 'sekundi'],
+        m: ['jedan minut', 'jednog minuta'],
+        mm: ['minut', 'minuta', 'minuta'],
+        h: ['jedan sat', 'jednog sata'],
+        hh: ['sat', 'sata', 'sati'],
+        dd: ['dan', 'dana', 'dana'],
+        MM: ['mjesec', 'mjeseca', 'mjeseci'],
+        yy: ['godina', 'godine', 'godina'],
+    },
+    correctGrammaticalCase: function (number, wordKey) {
+        return number === 1
+            ? wordKey[0]
+            : number >= 2 && number <= 4
+              ? wordKey[1]
+              : wordKey[2];
+    },
+    translate: function (number, withoutSuffix, key) {
+        var wordKey = translator.words[key];
+        if (key.length === 1) {
+            return withoutSuffix ? wordKey[0] : wordKey[1];
+        } else {
+            return (
+                number +
+                ' ' +
+                translator.correctGrammaticalCase(number, wordKey)
+            );
+        }
+    },
+};
+
+export default moment.defineLocale('me', {
+    months: 'januar_februar_mart_april_maj_jun_jul_avgust_septembar_oktobar_novembar_decembar'.split(
+        '_'
+    ),
+    monthsShort:
+        'jan._feb._mar._apr._maj_jun_jul_avg._sep._okt._nov._dec.'.split('_'),
+    monthsParseExact: true,
+    weekdays: 'nedjelja_ponedjeljak_utorak_srijeda_četvrtak_petak_subota'.split(
+        '_'
+    ),
+    weekdaysShort: 'ned._pon._uto._sri._čet._pet._sub.'.split('_'),
+    weekdaysMin: 'ne_po_ut_sr_če_pe_su'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY H:mm',
+        LLLL: 'dddd, D. MMMM YYYY H:mm',
+    },
+    calendar: {
+        sameDay: '[danas u] LT',
+        nextDay: '[sjutra u] LT',
+
+        nextWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[u] [nedjelju] [u] LT';
+                case 3:
+                    return '[u] [srijedu] [u] LT';
+                case 6:
+                    return '[u] [subotu] [u] LT';
+                case 1:
+                case 2:
+                case 4:
+                case 5:
+                    return '[u] dddd [u] LT';
+            }
+        },
+        lastDay: '[juče u] LT',
+        lastWeek: function () {
+            var lastWeekDays = [
+                '[prošle] [nedjelje] [u] LT',
+                '[prošlog] [ponedjeljka] [u] LT',
+                '[prošlog] [utorka] [u] LT',
+                '[prošle] [srijede] [u] LT',
+                '[prošlog] [četvrtka] [u] LT',
+                '[prošlog] [petka] [u] LT',
+                '[prošle] [subote] [u] LT',
+            ];
+            return lastWeekDays[this.day()];
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'za %s',
+        past: 'prije %s',
+        s: 'nekoliko sekundi',
+        ss: translator.translate,
+        m: translator.translate,
+        mm: translator.translate,
+        h: translator.translate,
+        hh: translator.translate,
+        d: 'dan',
+        dd: translator.translate,
+        M: 'mjesec',
+        MM: translator.translate,
+        y: 'godinu',
+        yy: translator.translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/mi.js b/backend/node_modules/moment/src/locale/mi.js
new file mode 100644
index 0000000..635a56a
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/mi.js
@@ -0,0 +1,60 @@
+//! moment.js locale configuration
+//! locale : Maori [mi]
+//! author : John Corrigan <robbiecloset@gmail.com> : https://github.com/johnideal
+
+import moment from '../moment';
+
+export default moment.defineLocale('mi', {
+    months: 'Kohi-tāte_Hui-tanguru_Poutū-te-rangi_Paenga-whāwhā_Haratua_Pipiri_Hōngoingoi_Here-turi-kōkā_Mahuru_Whiringa-ā-nuku_Whiringa-ā-rangi_Hakihea'.split(
+        '_'
+    ),
+    monthsShort:
+        'Kohi_Hui_Pou_Pae_Hara_Pipi_Hōngoi_Here_Mahu_Whi-nu_Whi-ra_Haki'.split(
+            '_'
+        ),
+    monthsRegex: /(?:['a-z\u0101\u014D\u016B]+\-?){1,3}/i,
+    monthsStrictRegex: /(?:['a-z\u0101\u014D\u016B]+\-?){1,3}/i,
+    monthsShortRegex: /(?:['a-z\u0101\u014D\u016B]+\-?){1,3}/i,
+    monthsShortStrictRegex: /(?:['a-z\u0101\u014D\u016B]+\-?){1,2}/i,
+    weekdays: 'Rātapu_Mane_Tūrei_Wenerei_Tāite_Paraire_Hātarei'.split('_'),
+    weekdaysShort: 'Ta_Ma_Tū_We_Tāi_Pa_Hā'.split('_'),
+    weekdaysMin: 'Ta_Ma_Tū_We_Tāi_Pa_Hā'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY [i] HH:mm',
+        LLLL: 'dddd, D MMMM YYYY [i] HH:mm',
+    },
+    calendar: {
+        sameDay: '[i teie mahana, i] LT',
+        nextDay: '[apopo i] LT',
+        nextWeek: 'dddd [i] LT',
+        lastDay: '[inanahi i] LT',
+        lastWeek: 'dddd [whakamutunga i] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'i roto i %s',
+        past: '%s i mua',
+        s: 'te hēkona ruarua',
+        ss: '%d hēkona',
+        m: 'he meneti',
+        mm: '%d meneti',
+        h: 'te haora',
+        hh: '%d haora',
+        d: 'he ra',
+        dd: '%d ra',
+        M: 'he marama',
+        MM: '%d marama',
+        y: 'he tau',
+        yy: '%d tau',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}º/,
+    ordinal: '%dº',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/mk.js b/backend/node_modules/moment/src/locale/mk.js
new file mode 100644
index 0000000..f3ecad7
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/mk.js
@@ -0,0 +1,85 @@
+//! moment.js locale configuration
+//! locale : Macedonian [mk]
+//! author : Borislav Mickov : https://github.com/B0k0
+//! author : Sashko Todorov : https://github.com/bkyceh
+import moment from '../moment';
+
+export default moment.defineLocale('mk', {
+    months: 'јануари_февруари_март_април_мај_јуни_јули_август_септември_октомври_ноември_декември'.split(
+        '_'
+    ),
+    monthsShort: 'јан_фев_мар_апр_мај_јун_јул_авг_сеп_окт_ное_дек'.split('_'),
+    weekdays: 'недела_понеделник_вторник_среда_четврток_петок_сабота'.split(
+        '_'
+    ),
+    weekdaysShort: 'нед_пон_вто_сре_чет_пет_саб'.split('_'),
+    weekdaysMin: 'нe_пo_вт_ср_че_пе_сa'.split('_'),
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'D.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY H:mm',
+        LLLL: 'dddd, D MMMM YYYY H:mm',
+    },
+    calendar: {
+        sameDay: '[Денес во] LT',
+        nextDay: '[Утре во] LT',
+        nextWeek: '[Во] dddd [во] LT',
+        lastDay: '[Вчера во] LT',
+        lastWeek: function () {
+            switch (this.day()) {
+                case 0:
+                case 3:
+                case 6:
+                    return '[Изминатата] dddd [во] LT';
+                case 1:
+                case 2:
+                case 4:
+                case 5:
+                    return '[Изминатиот] dddd [во] LT';
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'за %s',
+        past: 'пред %s',
+        s: 'неколку секунди',
+        ss: '%d секунди',
+        m: 'една минута',
+        mm: '%d минути',
+        h: 'еден час',
+        hh: '%d часа',
+        d: 'еден ден',
+        dd: '%d дена',
+        M: 'еден месец',
+        MM: '%d месеци',
+        y: 'една година',
+        yy: '%d години',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}-(ев|ен|ти|ви|ри|ми)/,
+    ordinal: function (number) {
+        var lastDigit = number % 10,
+            last2Digits = number % 100;
+        if (number === 0) {
+            return number + '-ев';
+        } else if (last2Digits === 0) {
+            return number + '-ен';
+        } else if (last2Digits > 10 && last2Digits < 20) {
+            return number + '-ти';
+        } else if (lastDigit === 1) {
+            return number + '-ви';
+        } else if (lastDigit === 2) {
+            return number + '-ри';
+        } else if (lastDigit === 7 || lastDigit === 8) {
+            return number + '-ми';
+        } else {
+            return number + '-ти';
+        }
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ml.js b/backend/node_modules/moment/src/locale/ml.js
new file mode 100644
index 0000000..5df6ae4
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ml.js
@@ -0,0 +1,82 @@
+//! moment.js locale configuration
+//! locale : Malayalam [ml]
+//! author : Floyd Pink : https://github.com/floydpink
+
+import moment from '../moment';
+
+export default moment.defineLocale('ml', {
+    months: 'ജനുവരി_ഫെബ്രുവരി_മാർച്ച്_ഏപ്രിൽ_മേയ്_ജൂൺ_ജൂലൈ_ഓഗസ്റ്റ്_സെപ്റ്റംബർ_ഒക്ടോബർ_നവംബർ_ഡിസംബർ'.split(
+        '_'
+    ),
+    monthsShort:
+        'ജനു._ഫെബ്രു._മാർ._ഏപ്രി._മേയ്_ജൂൺ_ജൂലൈ._ഓഗ._സെപ്റ്റ._ഒക്ടോ._നവം._ഡിസം.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays:
+        'ഞായറാഴ്ച_തിങ്കളാഴ്ച_ചൊവ്വാഴ്ച_ബുധനാഴ്ച_വ്യാഴാഴ്ച_വെള്ളിയാഴ്ച_ശനിയാഴ്ച'.split(
+            '_'
+        ),
+    weekdaysShort: 'ഞായർ_തിങ്കൾ_ചൊവ്വ_ബുധൻ_വ്യാഴം_വെള്ളി_ശനി'.split('_'),
+    weekdaysMin: 'ഞാ_തി_ചൊ_ബു_വ്യാ_വെ_ശ'.split('_'),
+    longDateFormat: {
+        LT: 'A h:mm -നു',
+        LTS: 'A h:mm:ss -നു',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY, A h:mm -നു',
+        LLLL: 'dddd, D MMMM YYYY, A h:mm -നു',
+    },
+    calendar: {
+        sameDay: '[ഇന്ന്] LT',
+        nextDay: '[നാളെ] LT',
+        nextWeek: 'dddd, LT',
+        lastDay: '[ഇന്നലെ] LT',
+        lastWeek: '[കഴിഞ്ഞ] dddd, LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s കഴിഞ്ഞ്',
+        past: '%s മുൻപ്',
+        s: 'അൽപ നിമിഷങ്ങൾ',
+        ss: '%d സെക്കൻഡ്',
+        m: 'ഒരു മിനിറ്റ്',
+        mm: '%d മിനിറ്റ്',
+        h: 'ഒരു മണിക്കൂർ',
+        hh: '%d മണിക്കൂർ',
+        d: 'ഒരു ദിവസം',
+        dd: '%d ദിവസം',
+        M: 'ഒരു മാസം',
+        MM: '%d മാസം',
+        y: 'ഒരു വർഷം',
+        yy: '%d വർഷം',
+    },
+    meridiemParse: /രാത്രി|രാവിലെ|ഉച്ച കഴിഞ്ഞ്|വൈകുന്നേരം|രാത്രി/i,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (
+            (meridiem === 'രാത്രി' && hour >= 4) ||
+            meridiem === 'ഉച്ച കഴിഞ്ഞ്' ||
+            meridiem === 'വൈകുന്നേരം'
+        ) {
+            return hour + 12;
+        } else {
+            return hour;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'രാത്രി';
+        } else if (hour < 12) {
+            return 'രാവിലെ';
+        } else if (hour < 17) {
+            return 'ഉച്ച കഴിഞ്ഞ്';
+        } else if (hour < 20) {
+            return 'വൈകുന്നേരം';
+        } else {
+            return 'രാത്രി';
+        }
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/mn.js b/backend/node_modules/moment/src/locale/mn.js
new file mode 100644
index 0000000..36cf69f
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/mn.js
@@ -0,0 +1,100 @@
+//! moment.js locale configuration
+//! locale : Mongolian [mn]
+//! author : Javkhlantugs Nyamdorj : https://github.com/javkhaanj7
+
+import moment from '../moment';
+
+function translate(number, withoutSuffix, key, isFuture) {
+    switch (key) {
+        case 's':
+            return withoutSuffix ? 'хэдхэн секунд' : 'хэдхэн секундын';
+        case 'ss':
+            return number + (withoutSuffix ? ' секунд' : ' секундын');
+        case 'm':
+        case 'mm':
+            return number + (withoutSuffix ? ' минут' : ' минутын');
+        case 'h':
+        case 'hh':
+            return number + (withoutSuffix ? ' цаг' : ' цагийн');
+        case 'd':
+        case 'dd':
+            return number + (withoutSuffix ? ' өдөр' : ' өдрийн');
+        case 'M':
+        case 'MM':
+            return number + (withoutSuffix ? ' сар' : ' сарын');
+        case 'y':
+        case 'yy':
+            return number + (withoutSuffix ? ' жил' : ' жилийн');
+        default:
+            return number;
+    }
+}
+
+export default moment.defineLocale('mn', {
+    months: 'Нэгдүгээр сар_Хоёрдугаар сар_Гуравдугаар сар_Дөрөвдүгээр сар_Тавдугаар сар_Зургадугаар сар_Долдугаар сар_Наймдугаар сар_Есдүгээр сар_Аравдугаар сар_Арван нэгдүгээр сар_Арван хоёрдугаар сар'.split(
+        '_'
+    ),
+    monthsShort:
+        '1 сар_2 сар_3 сар_4 сар_5 сар_6 сар_7 сар_8 сар_9 сар_10 сар_11 сар_12 сар'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'Ням_Даваа_Мягмар_Лхагва_Пүрэв_Баасан_Бямба'.split('_'),
+    weekdaysShort: 'Ням_Дав_Мяг_Лха_Пүр_Баа_Бям'.split('_'),
+    weekdaysMin: 'Ня_Да_Мя_Лх_Пү_Ба_Бя'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'YYYY-MM-DD',
+        LL: 'YYYY оны MMMMын D',
+        LLL: 'YYYY оны MMMMын D HH:mm',
+        LLLL: 'dddd, YYYY оны MMMMын D HH:mm',
+    },
+    meridiemParse: /ҮӨ|ҮХ/i,
+    isPM: function (input) {
+        return input === 'ҮХ';
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'ҮӨ';
+        } else {
+            return 'ҮХ';
+        }
+    },
+    calendar: {
+        sameDay: '[Өнөөдөр] LT',
+        nextDay: '[Маргааш] LT',
+        nextWeek: '[Ирэх] dddd LT',
+        lastDay: '[Өчигдөр] LT',
+        lastWeek: '[Өнгөрсөн] dddd LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s дараа',
+        past: '%s өмнө',
+        s: translate,
+        ss: translate,
+        m: translate,
+        mm: translate,
+        h: translate,
+        hh: translate,
+        d: translate,
+        dd: translate,
+        M: translate,
+        MM: translate,
+        y: translate,
+        yy: translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2} өдөр/,
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'd':
+            case 'D':
+            case 'DDD':
+                return number + ' өдөр';
+            default:
+                return number;
+        }
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/mr.js b/backend/node_modules/moment/src/locale/mr.js
new file mode 100644
index 0000000..d174909
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/mr.js
@@ -0,0 +1,203 @@
+//! moment.js locale configuration
+//! locale : Marathi [mr]
+//! author : Harshad Kale : https://github.com/kalehv
+//! author : Vivek Athalye : https://github.com/vnathalye
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '१',
+        2: '२',
+        3: '३',
+        4: '४',
+        5: '५',
+        6: '६',
+        7: '७',
+        8: '८',
+        9: '९',
+        0: '०',
+    },
+    numberMap = {
+        '१': '1',
+        '२': '2',
+        '३': '3',
+        '४': '4',
+        '५': '5',
+        '६': '6',
+        '७': '7',
+        '८': '8',
+        '९': '9',
+        '०': '0',
+    };
+
+function relativeTimeMr(number, withoutSuffix, string, isFuture) {
+    var output = '';
+    if (withoutSuffix) {
+        switch (string) {
+            case 's':
+                output = 'काही सेकंद';
+                break;
+            case 'ss':
+                output = '%d सेकंद';
+                break;
+            case 'm':
+                output = 'एक मिनिट';
+                break;
+            case 'mm':
+                output = '%d मिनिटे';
+                break;
+            case 'h':
+                output = 'एक तास';
+                break;
+            case 'hh':
+                output = '%d तास';
+                break;
+            case 'd':
+                output = 'एक दिवस';
+                break;
+            case 'dd':
+                output = '%d दिवस';
+                break;
+            case 'M':
+                output = 'एक महिना';
+                break;
+            case 'MM':
+                output = '%d महिने';
+                break;
+            case 'y':
+                output = 'एक वर्ष';
+                break;
+            case 'yy':
+                output = '%d वर्षे';
+                break;
+        }
+    } else {
+        switch (string) {
+            case 's':
+                output = 'काही सेकंदां';
+                break;
+            case 'ss':
+                output = '%d सेकंदां';
+                break;
+            case 'm':
+                output = 'एका मिनिटा';
+                break;
+            case 'mm':
+                output = '%d मिनिटां';
+                break;
+            case 'h':
+                output = 'एका तासा';
+                break;
+            case 'hh':
+                output = '%d तासां';
+                break;
+            case 'd':
+                output = 'एका दिवसा';
+                break;
+            case 'dd':
+                output = '%d दिवसां';
+                break;
+            case 'M':
+                output = 'एका महिन्या';
+                break;
+            case 'MM':
+                output = '%d महिन्यां';
+                break;
+            case 'y':
+                output = 'एका वर्षा';
+                break;
+            case 'yy':
+                output = '%d वर्षां';
+                break;
+        }
+    }
+    return output.replace(/%d/i, number);
+}
+
+export default moment.defineLocale('mr', {
+    months: 'जानेवारी_फेब्रुवारी_मार्च_एप्रिल_मे_जून_जुलै_ऑगस्ट_सप्टेंबर_ऑक्टोबर_नोव्हेंबर_डिसेंबर'.split(
+        '_'
+    ),
+    monthsShort:
+        'जाने._फेब्रु._मार्च._एप्रि._मे._जून._जुलै._ऑग._सप्टें._ऑक्टो._नोव्हें._डिसें.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'रविवार_सोमवार_मंगळवार_बुधवार_गुरूवार_शुक्रवार_शनिवार'.split('_'),
+    weekdaysShort: 'रवि_सोम_मंगळ_बुध_गुरू_शुक्र_शनि'.split('_'),
+    weekdaysMin: 'र_सो_मं_बु_गु_शु_श'.split('_'),
+    longDateFormat: {
+        LT: 'A h:mm वाजता',
+        LTS: 'A h:mm:ss वाजता',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY, A h:mm वाजता',
+        LLLL: 'dddd, D MMMM YYYY, A h:mm वाजता',
+    },
+    calendar: {
+        sameDay: '[आज] LT',
+        nextDay: '[उद्या] LT',
+        nextWeek: 'dddd, LT',
+        lastDay: '[काल] LT',
+        lastWeek: '[मागील] dddd, LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%sमध्ये',
+        past: '%sपूर्वी',
+        s: relativeTimeMr,
+        ss: relativeTimeMr,
+        m: relativeTimeMr,
+        mm: relativeTimeMr,
+        h: relativeTimeMr,
+        hh: relativeTimeMr,
+        d: relativeTimeMr,
+        dd: relativeTimeMr,
+        M: relativeTimeMr,
+        MM: relativeTimeMr,
+        y: relativeTimeMr,
+        yy: relativeTimeMr,
+    },
+    preparse: function (string) {
+        return string.replace(/[१२३४५६७८९०]/g, function (match) {
+            return numberMap[match];
+        });
+    },
+    postformat: function (string) {
+        return string.replace(/\d/g, function (match) {
+            return symbolMap[match];
+        });
+    },
+    meridiemParse: /पहाटे|सकाळी|दुपारी|सायंकाळी|रात्री/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'पहाटे' || meridiem === 'सकाळी') {
+            return hour;
+        } else if (
+            meridiem === 'दुपारी' ||
+            meridiem === 'सायंकाळी' ||
+            meridiem === 'रात्री'
+        ) {
+            return hour >= 12 ? hour : hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour >= 0 && hour < 6) {
+            return 'पहाटे';
+        } else if (hour < 12) {
+            return 'सकाळी';
+        } else if (hour < 17) {
+            return 'दुपारी';
+        } else if (hour < 20) {
+            return 'सायंकाळी';
+        } else {
+            return 'रात्री';
+        }
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ms-my.js b/backend/node_modules/moment/src/locale/ms-my.js
new file mode 100644
index 0000000..f8adf98
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ms-my.js
@@ -0,0 +1,76 @@
+//! moment.js locale configuration
+//! locale : Malay [ms-my]
+//! note : DEPRECATED, the correct one is [ms]
+//! author : Weldan Jamili : https://github.com/weldan
+
+import moment from '../moment';
+
+export default moment.defineLocale('ms-my', {
+    months: 'Januari_Februari_Mac_April_Mei_Jun_Julai_Ogos_September_Oktober_November_Disember'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mac_Apr_Mei_Jun_Jul_Ogs_Sep_Okt_Nov_Dis'.split('_'),
+    weekdays: 'Ahad_Isnin_Selasa_Rabu_Khamis_Jumaat_Sabtu'.split('_'),
+    weekdaysShort: 'Ahd_Isn_Sel_Rab_Kha_Jum_Sab'.split('_'),
+    weekdaysMin: 'Ah_Is_Sl_Rb_Km_Jm_Sb'.split('_'),
+    longDateFormat: {
+        LT: 'HH.mm',
+        LTS: 'HH.mm.ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY [pukul] HH.mm',
+        LLLL: 'dddd, D MMMM YYYY [pukul] HH.mm',
+    },
+    meridiemParse: /pagi|tengahari|petang|malam/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'pagi') {
+            return hour;
+        } else if (meridiem === 'tengahari') {
+            return hour >= 11 ? hour : hour + 12;
+        } else if (meridiem === 'petang' || meridiem === 'malam') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hours, minutes, isLower) {
+        if (hours < 11) {
+            return 'pagi';
+        } else if (hours < 15) {
+            return 'tengahari';
+        } else if (hours < 19) {
+            return 'petang';
+        } else {
+            return 'malam';
+        }
+    },
+    calendar: {
+        sameDay: '[Hari ini pukul] LT',
+        nextDay: '[Esok pukul] LT',
+        nextWeek: 'dddd [pukul] LT',
+        lastDay: '[Kelmarin pukul] LT',
+        lastWeek: 'dddd [lepas pukul] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'dalam %s',
+        past: '%s yang lepas',
+        s: 'beberapa saat',
+        ss: '%d saat',
+        m: 'seminit',
+        mm: '%d minit',
+        h: 'sejam',
+        hh: '%d jam',
+        d: 'sehari',
+        dd: '%d hari',
+        M: 'sebulan',
+        MM: '%d bulan',
+        y: 'setahun',
+        yy: '%d tahun',
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ms.js b/backend/node_modules/moment/src/locale/ms.js
new file mode 100644
index 0000000..335cc90
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ms.js
@@ -0,0 +1,75 @@
+//! moment.js locale configuration
+//! locale : Malay [ms]
+//! author : Weldan Jamili : https://github.com/weldan
+
+import moment from '../moment';
+
+export default moment.defineLocale('ms', {
+    months: 'Januari_Februari_Mac_April_Mei_Jun_Julai_Ogos_September_Oktober_November_Disember'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mac_Apr_Mei_Jun_Jul_Ogs_Sep_Okt_Nov_Dis'.split('_'),
+    weekdays: 'Ahad_Isnin_Selasa_Rabu_Khamis_Jumaat_Sabtu'.split('_'),
+    weekdaysShort: 'Ahd_Isn_Sel_Rab_Kha_Jum_Sab'.split('_'),
+    weekdaysMin: 'Ah_Is_Sl_Rb_Km_Jm_Sb'.split('_'),
+    longDateFormat: {
+        LT: 'HH.mm',
+        LTS: 'HH.mm.ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY [pukul] HH.mm',
+        LLLL: 'dddd, D MMMM YYYY [pukul] HH.mm',
+    },
+    meridiemParse: /pagi|tengahari|petang|malam/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'pagi') {
+            return hour;
+        } else if (meridiem === 'tengahari') {
+            return hour >= 11 ? hour : hour + 12;
+        } else if (meridiem === 'petang' || meridiem === 'malam') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hours, minutes, isLower) {
+        if (hours < 11) {
+            return 'pagi';
+        } else if (hours < 15) {
+            return 'tengahari';
+        } else if (hours < 19) {
+            return 'petang';
+        } else {
+            return 'malam';
+        }
+    },
+    calendar: {
+        sameDay: '[Hari ini pukul] LT',
+        nextDay: '[Esok pukul] LT',
+        nextWeek: 'dddd [pukul] LT',
+        lastDay: '[Kelmarin pukul] LT',
+        lastWeek: 'dddd [lepas pukul] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'dalam %s',
+        past: '%s yang lepas',
+        s: 'beberapa saat',
+        ss: '%d saat',
+        m: 'seminit',
+        mm: '%d minit',
+        h: 'sejam',
+        hh: '%d jam',
+        d: 'sehari',
+        dd: '%d hari',
+        M: 'sebulan',
+        MM: '%d bulan',
+        y: 'setahun',
+        yy: '%d tahun',
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/mt.js b/backend/node_modules/moment/src/locale/mt.js
new file mode 100644
index 0000000..850cf6a
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/mt.js
@@ -0,0 +1,56 @@
+//! moment.js locale configuration
+//! locale : Maltese (Malta) [mt]
+//! author : Alessandro Maruccia : https://github.com/alesma
+
+import moment from '../moment';
+
+export default moment.defineLocale('mt', {
+    months: 'Jannar_Frar_Marzu_April_Mejju_Ġunju_Lulju_Awwissu_Settembru_Ottubru_Novembru_Diċembru'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Fra_Mar_Apr_Mej_Ġun_Lul_Aww_Set_Ott_Nov_Diċ'.split('_'),
+    weekdays:
+        'Il-Ħadd_It-Tnejn_It-Tlieta_L-Erbgħa_Il-Ħamis_Il-Ġimgħa_Is-Sibt'.split(
+            '_'
+        ),
+    weekdaysShort: 'Ħad_Tne_Tli_Erb_Ħam_Ġim_Sib'.split('_'),
+    weekdaysMin: 'Ħa_Tn_Tl_Er_Ħa_Ġi_Si'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Illum fil-]LT',
+        nextDay: '[Għada fil-]LT',
+        nextWeek: 'dddd [fil-]LT',
+        lastDay: '[Il-bieraħ fil-]LT',
+        lastWeek: 'dddd [li għadda] [fil-]LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'f’ %s',
+        past: '%s ilu',
+        s: 'ftit sekondi',
+        ss: '%d sekondi',
+        m: 'minuta',
+        mm: '%d minuti',
+        h: 'siegħa',
+        hh: '%d siegħat',
+        d: 'ġurnata',
+        dd: '%d ġranet',
+        M: 'xahar',
+        MM: '%d xhur',
+        y: 'sena',
+        yy: '%d sni',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}º/,
+    ordinal: '%dº',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/my.js b/backend/node_modules/moment/src/locale/my.js
new file mode 100644
index 0000000..034b221
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/my.js
@@ -0,0 +1,91 @@
+//! moment.js locale configuration
+//! locale : Burmese [my]
+//! author : Squar team, mysquar.com
+//! author : David Rossellat : https://github.com/gholadr
+//! author : Tin Aung Lin : https://github.com/thanyawzinmin
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '၁',
+        2: '၂',
+        3: '၃',
+        4: '၄',
+        5: '၅',
+        6: '၆',
+        7: '၇',
+        8: '၈',
+        9: '၉',
+        0: '၀',
+    },
+    numberMap = {
+        '၁': '1',
+        '၂': '2',
+        '၃': '3',
+        '၄': '4',
+        '၅': '5',
+        '၆': '6',
+        '၇': '7',
+        '၈': '8',
+        '၉': '9',
+        '၀': '0',
+    };
+
+export default moment.defineLocale('my', {
+    months: 'ဇန်နဝါရီ_ဖေဖော်ဝါရီ_မတ်_ဧပြီ_မေ_ဇွန်_ဇူလိုင်_သြဂုတ်_စက်တင်ဘာ_အောက်တိုဘာ_နိုဝင်ဘာ_ဒီဇင်ဘာ'.split(
+        '_'
+    ),
+    monthsShort: 'ဇန်_ဖေ_မတ်_ပြီ_မေ_ဇွန်_လိုင်_သြ_စက်_အောက်_နို_ဒီ'.split('_'),
+    weekdays: 'တနင်္ဂနွေ_တနင်္လာ_အင်္ဂါ_ဗုဒ္ဓဟူး_ကြာသပတေး_သောကြာ_စနေ'.split(
+        '_'
+    ),
+    weekdaysShort: 'နွေ_လာ_ဂါ_ဟူး_ကြာ_သော_နေ'.split('_'),
+    weekdaysMin: 'နွေ_လာ_ဂါ_ဟူး_ကြာ_သော_နေ'.split('_'),
+
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[ယနေ.] LT [မှာ]',
+        nextDay: '[မနက်ဖြန်] LT [မှာ]',
+        nextWeek: 'dddd LT [မှာ]',
+        lastDay: '[မနေ.က] LT [မှာ]',
+        lastWeek: '[ပြီးခဲ့သော] dddd LT [မှာ]',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'လာမည့် %s မှာ',
+        past: 'လွန်ခဲ့သော %s က',
+        s: 'စက္ကန်.အနည်းငယ်',
+        ss: '%d စက္ကန့်',
+        m: 'တစ်မိနစ်',
+        mm: '%d မိနစ်',
+        h: 'တစ်နာရီ',
+        hh: '%d နာရီ',
+        d: 'တစ်ရက်',
+        dd: '%d ရက်',
+        M: 'တစ်လ',
+        MM: '%d လ',
+        y: 'တစ်နှစ်',
+        yy: '%d နှစ်',
+    },
+    preparse: function (string) {
+        return string.replace(/[၁၂၃၄၅၆၇၈၉၀]/g, function (match) {
+            return numberMap[match];
+        });
+    },
+    postformat: function (string) {
+        return string.replace(/\d/g, function (match) {
+            return symbolMap[match];
+        });
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/nb.js b/backend/node_modules/moment/src/locale/nb.js
new file mode 100644
index 0000000..cce3aaa
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/nb.js
@@ -0,0 +1,60 @@
+//! moment.js locale configuration
+//! locale : Norwegian Bokmål [nb]
+//! authors : Espen Hovlandsdal : https://github.com/rexxars
+//!           Sigurd Gartmann : https://github.com/sigurdga
+//!           Stephen Ramthun : https://github.com/stephenramthun
+
+import moment from '../moment';
+
+export default moment.defineLocale('nb', {
+    months: 'januar_februar_mars_april_mai_juni_juli_august_september_oktober_november_desember'.split(
+        '_'
+    ),
+    monthsShort:
+        'jan._feb._mars_apr._mai_juni_juli_aug._sep._okt._nov._des.'.split('_'),
+    monthsParseExact: true,
+    weekdays: 'søndag_mandag_tirsdag_onsdag_torsdag_fredag_lørdag'.split('_'),
+    weekdaysShort: 'sø._ma._ti._on._to._fr._lø.'.split('_'),
+    weekdaysMin: 'sø_ma_ti_on_to_fr_lø'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY [kl.] HH:mm',
+        LLLL: 'dddd D. MMMM YYYY [kl.] HH:mm',
+    },
+    calendar: {
+        sameDay: '[i dag kl.] LT',
+        nextDay: '[i morgen kl.] LT',
+        nextWeek: 'dddd [kl.] LT',
+        lastDay: '[i går kl.] LT',
+        lastWeek: '[forrige] dddd [kl.] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'om %s',
+        past: '%s siden',
+        s: 'noen sekunder',
+        ss: '%d sekunder',
+        m: 'ett minutt',
+        mm: '%d minutter',
+        h: 'én time',
+        hh: '%d timer',
+        d: 'én dag',
+        dd: '%d dager',
+        w: 'én uke',
+        ww: '%d uker',
+        M: 'én måned',
+        MM: '%d måneder',
+        y: 'ett år',
+        yy: '%d år',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ne.js b/backend/node_modules/moment/src/locale/ne.js
new file mode 100644
index 0000000..1f0a0ed
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ne.js
@@ -0,0 +1,121 @@
+//! moment.js locale configuration
+//! locale : Nepalese [ne]
+//! author : suvash : https://github.com/suvash
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '१',
+        2: '२',
+        3: '३',
+        4: '४',
+        5: '५',
+        6: '६',
+        7: '७',
+        8: '८',
+        9: '९',
+        0: '०',
+    },
+    numberMap = {
+        '१': '1',
+        '२': '2',
+        '३': '3',
+        '४': '4',
+        '५': '5',
+        '६': '6',
+        '७': '7',
+        '८': '8',
+        '९': '9',
+        '०': '0',
+    };
+
+export default moment.defineLocale('ne', {
+    months: 'जनवरी_फेब्रुवरी_मार्च_अप्रिल_मई_जुन_जुलाई_अगष्ट_सेप्टेम्बर_अक्टोबर_नोभेम्बर_डिसेम्बर'.split(
+        '_'
+    ),
+    monthsShort:
+        'जन._फेब्रु._मार्च_अप्रि._मई_जुन_जुलाई._अग._सेप्ट._अक्टो._नोभे._डिसे.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'आइतबार_सोमबार_मङ्गलबार_बुधबार_बिहिबार_शुक्रबार_शनिबार'.split(
+        '_'
+    ),
+    weekdaysShort: 'आइत._सोम._मङ्गल._बुध._बिहि._शुक्र._शनि.'.split('_'),
+    weekdaysMin: 'आ._सो._मं._बु._बि._शु._श.'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'Aको h:mm बजे',
+        LTS: 'Aको h:mm:ss बजे',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY, Aको h:mm बजे',
+        LLLL: 'dddd, D MMMM YYYY, Aको h:mm बजे',
+    },
+    preparse: function (string) {
+        return string.replace(/[१२३४५६७८९०]/g, function (match) {
+            return numberMap[match];
+        });
+    },
+    postformat: function (string) {
+        return string.replace(/\d/g, function (match) {
+            return symbolMap[match];
+        });
+    },
+    meridiemParse: /राति|बिहान|दिउँसो|साँझ/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'राति') {
+            return hour < 4 ? hour : hour + 12;
+        } else if (meridiem === 'बिहान') {
+            return hour;
+        } else if (meridiem === 'दिउँसो') {
+            return hour >= 10 ? hour : hour + 12;
+        } else if (meridiem === 'साँझ') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 3) {
+            return 'राति';
+        } else if (hour < 12) {
+            return 'बिहान';
+        } else if (hour < 16) {
+            return 'दिउँसो';
+        } else if (hour < 20) {
+            return 'साँझ';
+        } else {
+            return 'राति';
+        }
+    },
+    calendar: {
+        sameDay: '[आज] LT',
+        nextDay: '[भोलि] LT',
+        nextWeek: '[आउँदो] dddd[,] LT',
+        lastDay: '[हिजो] LT',
+        lastWeek: '[गएको] dddd[,] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%sमा',
+        past: '%s अगाडि',
+        s: 'केही क्षण',
+        ss: '%d सेकेण्ड',
+        m: 'एक मिनेट',
+        mm: '%d मिनेट',
+        h: 'एक घण्टा',
+        hh: '%d घण्टा',
+        d: 'एक दिन',
+        dd: '%d दिन',
+        M: 'एक महिना',
+        MM: '%d महिना',
+        y: 'एक बर्ष',
+        yy: '%d बर्ष',
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/nl-be.js b/backend/node_modules/moment/src/locale/nl-be.js
new file mode 100644
index 0000000..e495ff1
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/nl-be.js
@@ -0,0 +1,102 @@
+//! moment.js locale configuration
+//! locale : Dutch (Belgium) [nl-be]
+//! author : Joris Röling : https://github.com/jorisroling
+//! author : Jacob Middag : https://github.com/middagj
+
+import moment from '../moment';
+
+var monthsShortWithDots =
+        'jan._feb._mrt._apr._mei_jun._jul._aug._sep._okt._nov._dec.'.split('_'),
+    monthsShortWithoutDots =
+        'jan_feb_mrt_apr_mei_jun_jul_aug_sep_okt_nov_dec'.split('_'),
+    monthsParse = [
+        /^jan/i,
+        /^feb/i,
+        /^(maart|mrt\.?)$/i,
+        /^apr/i,
+        /^mei$/i,
+        /^jun[i.]?$/i,
+        /^jul[i.]?$/i,
+        /^aug/i,
+        /^sep/i,
+        /^okt/i,
+        /^nov/i,
+        /^dec/i,
+    ],
+    monthsRegex =
+        /^(januari|februari|maart|april|mei|ju[nl]i|augustus|september|oktober|november|december|jan\.?|feb\.?|mrt\.?|apr\.?|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i;
+
+export default moment.defineLocale('nl-be', {
+    months: 'januari_februari_maart_april_mei_juni_juli_augustus_september_oktober_november_december'.split(
+        '_'
+    ),
+    monthsShort: function (m, format) {
+        if (!m) {
+            return monthsShortWithDots;
+        } else if (/-MMM-/.test(format)) {
+            return monthsShortWithoutDots[m.month()];
+        } else {
+            return monthsShortWithDots[m.month()];
+        }
+    },
+
+    monthsRegex: monthsRegex,
+    monthsShortRegex: monthsRegex,
+    monthsStrictRegex:
+        /^(januari|februari|maart|april|mei|ju[nl]i|augustus|september|oktober|november|december)/i,
+    monthsShortStrictRegex:
+        /^(jan\.?|feb\.?|mrt\.?|apr\.?|mei|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i,
+
+    monthsParse: monthsParse,
+    longMonthsParse: monthsParse,
+    shortMonthsParse: monthsParse,
+
+    weekdays:
+        'zondag_maandag_dinsdag_woensdag_donderdag_vrijdag_zaterdag'.split('_'),
+    weekdaysShort: 'zo._ma._di._wo._do._vr._za.'.split('_'),
+    weekdaysMin: 'zo_ma_di_wo_do_vr_za'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[vandaag om] LT',
+        nextDay: '[morgen om] LT',
+        nextWeek: 'dddd [om] LT',
+        lastDay: '[gisteren om] LT',
+        lastWeek: '[afgelopen] dddd [om] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'over %s',
+        past: '%s geleden',
+        s: 'een paar seconden',
+        ss: '%d seconden',
+        m: 'één minuut',
+        mm: '%d minuten',
+        h: 'één uur',
+        hh: '%d uur',
+        d: 'één dag',
+        dd: '%d dagen',
+        M: 'één maand',
+        MM: '%d maanden',
+        y: 'één jaar',
+        yy: '%d jaar',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
+    ordinal: function (number) {
+        return (
+            number +
+            (number === 1 || number === 8 || number >= 20 ? 'ste' : 'de')
+        );
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/nl.js b/backend/node_modules/moment/src/locale/nl.js
new file mode 100644
index 0000000..b6d83c3
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/nl.js
@@ -0,0 +1,104 @@
+//! moment.js locale configuration
+//! locale : Dutch [nl]
+//! author : Joris Röling : https://github.com/jorisroling
+//! author : Jacob Middag : https://github.com/middagj
+
+import moment from '../moment';
+
+var monthsShortWithDots =
+        'jan._feb._mrt._apr._mei_jun._jul._aug._sep._okt._nov._dec.'.split('_'),
+    monthsShortWithoutDots =
+        'jan_feb_mrt_apr_mei_jun_jul_aug_sep_okt_nov_dec'.split('_'),
+    monthsParse = [
+        /^jan/i,
+        /^feb/i,
+        /^(maart|mrt\.?)$/i,
+        /^apr/i,
+        /^mei$/i,
+        /^jun[i.]?$/i,
+        /^jul[i.]?$/i,
+        /^aug/i,
+        /^sep/i,
+        /^okt/i,
+        /^nov/i,
+        /^dec/i,
+    ],
+    monthsRegex =
+        /^(januari|februari|maart|april|mei|ju[nl]i|augustus|september|oktober|november|december|jan\.?|feb\.?|mrt\.?|apr\.?|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i;
+
+export default moment.defineLocale('nl', {
+    months: 'januari_februari_maart_april_mei_juni_juli_augustus_september_oktober_november_december'.split(
+        '_'
+    ),
+    monthsShort: function (m, format) {
+        if (!m) {
+            return monthsShortWithDots;
+        } else if (/-MMM-/.test(format)) {
+            return monthsShortWithoutDots[m.month()];
+        } else {
+            return monthsShortWithDots[m.month()];
+        }
+    },
+
+    monthsRegex: monthsRegex,
+    monthsShortRegex: monthsRegex,
+    monthsStrictRegex:
+        /^(januari|februari|maart|april|mei|ju[nl]i|augustus|september|oktober|november|december)/i,
+    monthsShortStrictRegex:
+        /^(jan\.?|feb\.?|mrt\.?|apr\.?|mei|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i,
+
+    monthsParse: monthsParse,
+    longMonthsParse: monthsParse,
+    shortMonthsParse: monthsParse,
+
+    weekdays:
+        'zondag_maandag_dinsdag_woensdag_donderdag_vrijdag_zaterdag'.split('_'),
+    weekdaysShort: 'zo._ma._di._wo._do._vr._za.'.split('_'),
+    weekdaysMin: 'zo_ma_di_wo_do_vr_za'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD-MM-YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[vandaag om] LT',
+        nextDay: '[morgen om] LT',
+        nextWeek: 'dddd [om] LT',
+        lastDay: '[gisteren om] LT',
+        lastWeek: '[afgelopen] dddd [om] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'over %s',
+        past: '%s geleden',
+        s: 'een paar seconden',
+        ss: '%d seconden',
+        m: 'één minuut',
+        mm: '%d minuten',
+        h: 'één uur',
+        hh: '%d uur',
+        d: 'één dag',
+        dd: '%d dagen',
+        w: 'één week',
+        ww: '%d weken',
+        M: 'één maand',
+        MM: '%d maanden',
+        y: 'één jaar',
+        yy: '%d jaar',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
+    ordinal: function (number) {
+        return (
+            number +
+            (number === 1 || number === 8 || number >= 20 ? 'ste' : 'de')
+        );
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/nn.js b/backend/node_modules/moment/src/locale/nn.js
new file mode 100644
index 0000000..0da1150
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/nn.js
@@ -0,0 +1,59 @@
+//! moment.js locale configuration
+//! locale : Nynorsk [nn]
+//! authors : https://github.com/mechuwind
+//!           Stephen Ramthun : https://github.com/stephenramthun
+
+import moment from '../moment';
+
+export default moment.defineLocale('nn', {
+    months: 'januar_februar_mars_april_mai_juni_juli_august_september_oktober_november_desember'.split(
+        '_'
+    ),
+    monthsShort:
+        'jan._feb._mars_apr._mai_juni_juli_aug._sep._okt._nov._des.'.split('_'),
+    monthsParseExact: true,
+    weekdays: 'sundag_måndag_tysdag_onsdag_torsdag_fredag_laurdag'.split('_'),
+    weekdaysShort: 'su._må._ty._on._to._fr._lau.'.split('_'),
+    weekdaysMin: 'su_må_ty_on_to_fr_la'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY [kl.] H:mm',
+        LLLL: 'dddd D. MMMM YYYY [kl.] HH:mm',
+    },
+    calendar: {
+        sameDay: '[I dag klokka] LT',
+        nextDay: '[I morgon klokka] LT',
+        nextWeek: 'dddd [klokka] LT',
+        lastDay: '[I går klokka] LT',
+        lastWeek: '[Føregåande] dddd [klokka] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'om %s',
+        past: '%s sidan',
+        s: 'nokre sekund',
+        ss: '%d sekund',
+        m: 'eit minutt',
+        mm: '%d minutt',
+        h: 'ein time',
+        hh: '%d timar',
+        d: 'ein dag',
+        dd: '%d dagar',
+        w: 'ei veke',
+        ww: '%d veker',
+        M: 'ein månad',
+        MM: '%d månader',
+        y: 'eit år',
+        yy: '%d år',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/oc-lnc.js b/backend/node_modules/moment/src/locale/oc-lnc.js
new file mode 100644
index 0000000..2e67d73
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/oc-lnc.js
@@ -0,0 +1,85 @@
+//! moment.js locale configuration
+//! locale : Occitan, lengadocian dialecte [oc-lnc]
+//! author : Quentin PAGÈS : https://github.com/Quenty31
+
+import moment from '../moment';
+
+export default moment.defineLocale('oc-lnc', {
+    months: {
+        standalone:
+            'genièr_febrièr_març_abril_mai_junh_julhet_agost_setembre_octòbre_novembre_decembre'.split(
+                '_'
+            ),
+        format: "de genièr_de febrièr_de març_d'abril_de mai_de junh_de julhet_d'agost_de setembre_d'octòbre_de novembre_de decembre".split(
+            '_'
+        ),
+        isFormat: /D[oD]?(\s)+MMMM/,
+    },
+    monthsShort:
+        'gen._febr._març_abr._mai_junh_julh._ago._set._oct._nov._dec.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'dimenge_diluns_dimars_dimècres_dijòus_divendres_dissabte'.split(
+        '_'
+    ),
+    weekdaysShort: 'dg._dl._dm._dc._dj._dv._ds.'.split('_'),
+    weekdaysMin: 'dg_dl_dm_dc_dj_dv_ds'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM [de] YYYY',
+        ll: 'D MMM YYYY',
+        LLL: 'D MMMM [de] YYYY [a] H:mm',
+        lll: 'D MMM YYYY, H:mm',
+        LLLL: 'dddd D MMMM [de] YYYY [a] H:mm',
+        llll: 'ddd D MMM YYYY, H:mm',
+    },
+    calendar: {
+        sameDay: '[uèi a] LT',
+        nextDay: '[deman a] LT',
+        nextWeek: 'dddd [a] LT',
+        lastDay: '[ièr a] LT',
+        lastWeek: 'dddd [passat a] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: "d'aquí %s",
+        past: 'fa %s',
+        s: 'unas segondas',
+        ss: '%d segondas',
+        m: 'una minuta',
+        mm: '%d minutas',
+        h: 'una ora',
+        hh: '%d oras',
+        d: 'un jorn',
+        dd: '%d jorns',
+        M: 'un mes',
+        MM: '%d meses',
+        y: 'un an',
+        yy: '%d ans',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(r|n|t|è|a)/,
+    ordinal: function (number, period) {
+        var output =
+            number === 1
+                ? 'r'
+                : number === 2
+                  ? 'n'
+                  : number === 3
+                    ? 'r'
+                    : number === 4
+                      ? 't'
+                      : 'è';
+        if (period === 'w' || period === 'W') {
+            output = 'a';
+        }
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4,
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/pa-in.js b/backend/node_modules/moment/src/locale/pa-in.js
new file mode 100644
index 0000000..e39dbd5
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/pa-in.js
@@ -0,0 +1,122 @@
+//! moment.js locale configuration
+//! locale : Punjabi (India) [pa-in]
+//! author : Harpreet Singh : https://github.com/harpreetkhalsagtbit
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '੧',
+        2: '੨',
+        3: '੩',
+        4: '੪',
+        5: '੫',
+        6: '੬',
+        7: '੭',
+        8: '੮',
+        9: '੯',
+        0: '੦',
+    },
+    numberMap = {
+        '੧': '1',
+        '੨': '2',
+        '੩': '3',
+        '੪': '4',
+        '੫': '5',
+        '੬': '6',
+        '੭': '7',
+        '੮': '8',
+        '੯': '9',
+        '੦': '0',
+    };
+
+export default moment.defineLocale('pa-in', {
+    // There are months name as per Nanakshahi Calendar but they are not used as rigidly in modern Punjabi.
+    months: 'ਜਨਵਰੀ_ਫ਼ਰਵਰੀ_ਮਾਰਚ_ਅਪ੍ਰੈਲ_ਮਈ_ਜੂਨ_ਜੁਲਾਈ_ਅਗਸਤ_ਸਤੰਬਰ_ਅਕਤੂਬਰ_ਨਵੰਬਰ_ਦਸੰਬਰ'.split(
+        '_'
+    ),
+    monthsShort:
+        'ਜਨਵਰੀ_ਫ਼ਰਵਰੀ_ਮਾਰਚ_ਅਪ੍ਰੈਲ_ਮਈ_ਜੂਨ_ਜੁਲਾਈ_ਅਗਸਤ_ਸਤੰਬਰ_ਅਕਤੂਬਰ_ਨਵੰਬਰ_ਦਸੰਬਰ'.split(
+            '_'
+        ),
+    weekdays: 'ਐਤਵਾਰ_ਸੋਮਵਾਰ_ਮੰਗਲਵਾਰ_ਬੁਧਵਾਰ_ਵੀਰਵਾਰ_ਸ਼ੁੱਕਰਵਾਰ_ਸ਼ਨੀਚਰਵਾਰ'.split(
+        '_'
+    ),
+    weekdaysShort: 'ਐਤ_ਸੋਮ_ਮੰਗਲ_ਬੁਧ_ਵੀਰ_ਸ਼ੁਕਰ_ਸ਼ਨੀ'.split('_'),
+    weekdaysMin: 'ਐਤ_ਸੋਮ_ਮੰਗਲ_ਬੁਧ_ਵੀਰ_ਸ਼ੁਕਰ_ਸ਼ਨੀ'.split('_'),
+    longDateFormat: {
+        LT: 'A h:mm ਵਜੇ',
+        LTS: 'A h:mm:ss ਵਜੇ',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY, A h:mm ਵਜੇ',
+        LLLL: 'dddd, D MMMM YYYY, A h:mm ਵਜੇ',
+    },
+    calendar: {
+        sameDay: '[ਅਜ] LT',
+        nextDay: '[ਕਲ] LT',
+        nextWeek: '[ਅਗਲਾ] dddd, LT',
+        lastDay: '[ਕਲ] LT',
+        lastWeek: '[ਪਿਛਲੇ] dddd, LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s ਵਿੱਚ',
+        past: '%s ਪਿਛਲੇ',
+        s: 'ਕੁਝ ਸਕਿੰਟ',
+        ss: '%d ਸਕਿੰਟ',
+        m: 'ਇਕ ਮਿੰਟ',
+        mm: '%d ਮਿੰਟ',
+        h: 'ਇੱਕ ਘੰਟਾ',
+        hh: '%d ਘੰਟੇ',
+        d: 'ਇੱਕ ਦਿਨ',
+        dd: '%d ਦਿਨ',
+        M: 'ਇੱਕ ਮਹੀਨਾ',
+        MM: '%d ਮਹੀਨੇ',
+        y: 'ਇੱਕ ਸਾਲ',
+        yy: '%d ਸਾਲ',
+    },
+    preparse: function (string) {
+        return string.replace(/[੧੨੩੪੫੬੭੮੯੦]/g, function (match) {
+            return numberMap[match];
+        });
+    },
+    postformat: function (string) {
+        return string.replace(/\d/g, function (match) {
+            return symbolMap[match];
+        });
+    },
+    // Punjabi notation for meridiems are quite fuzzy in practice. While there exists
+    // a rigid notion of a 'Pahar' it is not used as rigidly in modern Punjabi.
+    meridiemParse: /ਰਾਤ|ਸਵੇਰ|ਦੁਪਹਿਰ|ਸ਼ਾਮ/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'ਰਾਤ') {
+            return hour < 4 ? hour : hour + 12;
+        } else if (meridiem === 'ਸਵੇਰ') {
+            return hour;
+        } else if (meridiem === 'ਦੁਪਹਿਰ') {
+            return hour >= 10 ? hour : hour + 12;
+        } else if (meridiem === 'ਸ਼ਾਮ') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'ਰਾਤ';
+        } else if (hour < 10) {
+            return 'ਸਵੇਰ';
+        } else if (hour < 17) {
+            return 'ਦੁਪਹਿਰ';
+        } else if (hour < 20) {
+            return 'ਸ਼ਾਮ';
+        } else {
+            return 'ਰਾਤ';
+        }
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/pl.js b/backend/node_modules/moment/src/locale/pl.js
new file mode 100644
index 0000000..0608c0d
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/pl.js
@@ -0,0 +1,140 @@
+//! moment.js locale configuration
+//! locale : Polish [pl]
+//! author : Rafal Hirsz : https://github.com/evoL
+
+import moment from '../moment';
+
+var monthsNominative =
+        'styczeń_luty_marzec_kwiecień_maj_czerwiec_lipiec_sierpień_wrzesień_październik_listopad_grudzień'.split(
+            '_'
+        ),
+    monthsSubjective =
+        'stycznia_lutego_marca_kwietnia_maja_czerwca_lipca_sierpnia_września_października_listopada_grudnia'.split(
+            '_'
+        ),
+    monthsParse = [
+        /^sty/i,
+        /^lut/i,
+        /^mar/i,
+        /^kwi/i,
+        /^maj/i,
+        /^cze/i,
+        /^lip/i,
+        /^sie/i,
+        /^wrz/i,
+        /^paź/i,
+        /^lis/i,
+        /^gru/i,
+    ];
+function plural(n) {
+    return n % 10 < 5 && n % 10 > 1 && ~~(n / 10) % 10 !== 1;
+}
+function translate(number, withoutSuffix, key) {
+    var result = number + ' ';
+    switch (key) {
+        case 'ss':
+            return result + (plural(number) ? 'sekundy' : 'sekund');
+        case 'm':
+            return withoutSuffix ? 'minuta' : 'minutę';
+        case 'mm':
+            return result + (plural(number) ? 'minuty' : 'minut');
+        case 'h':
+            return withoutSuffix ? 'godzina' : 'godzinę';
+        case 'hh':
+            return result + (plural(number) ? 'godziny' : 'godzin');
+        case 'ww':
+            return result + (plural(number) ? 'tygodnie' : 'tygodni');
+        case 'MM':
+            return result + (plural(number) ? 'miesiące' : 'miesięcy');
+        case 'yy':
+            return result + (plural(number) ? 'lata' : 'lat');
+    }
+}
+
+export default moment.defineLocale('pl', {
+    months: function (momentToFormat, format) {
+        if (!momentToFormat) {
+            return monthsNominative;
+        } else if (/D MMMM/.test(format)) {
+            return monthsSubjective[momentToFormat.month()];
+        } else {
+            return monthsNominative[momentToFormat.month()];
+        }
+    },
+    monthsShort: 'sty_lut_mar_kwi_maj_cze_lip_sie_wrz_paź_lis_gru'.split('_'),
+    monthsParse: monthsParse,
+    longMonthsParse: monthsParse,
+    shortMonthsParse: monthsParse,
+    weekdays:
+        'niedziela_poniedziałek_wtorek_środa_czwartek_piątek_sobota'.split('_'),
+    weekdaysShort: 'ndz_pon_wt_śr_czw_pt_sob'.split('_'),
+    weekdaysMin: 'Nd_Pn_Wt_Śr_Cz_Pt_So'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Dziś o] LT',
+        nextDay: '[Jutro o] LT',
+        nextWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[W niedzielę o] LT';
+
+                case 2:
+                    return '[We wtorek o] LT';
+
+                case 3:
+                    return '[W środę o] LT';
+
+                case 6:
+                    return '[W sobotę o] LT';
+
+                default:
+                    return '[W] dddd [o] LT';
+            }
+        },
+        lastDay: '[Wczoraj o] LT',
+        lastWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[W zeszłą niedzielę o] LT';
+                case 3:
+                    return '[W zeszłą środę o] LT';
+                case 6:
+                    return '[W zeszłą sobotę o] LT';
+                default:
+                    return '[W zeszły] dddd [o] LT';
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'za %s',
+        past: '%s temu',
+        s: 'kilka sekund',
+        ss: translate,
+        m: translate,
+        mm: translate,
+        h: translate,
+        hh: translate,
+        d: '1 dzień',
+        dd: '%d dni',
+        w: 'tydzień',
+        ww: translate,
+        M: 'miesiąc',
+        MM: translate,
+        y: 'rok',
+        yy: translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/pt-br.js b/backend/node_modules/moment/src/locale/pt-br.js
new file mode 100644
index 0000000..eb9aa64
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/pt-br.js
@@ -0,0 +1,58 @@
+//! moment.js locale configuration
+//! locale : Portuguese (Brazil) [pt-br]
+//! author : Caio Ribeiro Pereira : https://github.com/caio-ribeiro-pereira
+
+import moment from '../moment';
+
+export default moment.defineLocale('pt-br', {
+    months: 'janeiro_fevereiro_março_abril_maio_junho_julho_agosto_setembro_outubro_novembro_dezembro'.split(
+        '_'
+    ),
+    monthsShort: 'jan_fev_mar_abr_mai_jun_jul_ago_set_out_nov_dez'.split('_'),
+    weekdays:
+        'domingo_segunda-feira_terça-feira_quarta-feira_quinta-feira_sexta-feira_sábado'.split(
+            '_'
+        ),
+    weekdaysShort: 'dom_seg_ter_qua_qui_sex_sáb'.split('_'),
+    weekdaysMin: 'do_2ª_3ª_4ª_5ª_6ª_sá'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D [de] MMMM [de] YYYY',
+        LLL: 'D [de] MMMM [de] YYYY [às] HH:mm',
+        LLLL: 'dddd, D [de] MMMM [de] YYYY [às] HH:mm',
+    },
+    calendar: {
+        sameDay: '[Hoje às] LT',
+        nextDay: '[Amanhã às] LT',
+        nextWeek: 'dddd [às] LT',
+        lastDay: '[Ontem às] LT',
+        lastWeek: function () {
+            return this.day() === 0 || this.day() === 6
+                ? '[Último] dddd [às] LT' // Saturday + Sunday
+                : '[Última] dddd [às] LT'; // Monday - Friday
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'em %s',
+        past: 'há %s',
+        s: 'poucos segundos',
+        ss: '%d segundos',
+        m: 'um minuto',
+        mm: '%d minutos',
+        h: 'uma hora',
+        hh: '%d horas',
+        d: 'um dia',
+        dd: '%d dias',
+        M: 'um mês',
+        MM: '%d meses',
+        y: 'um ano',
+        yy: '%d anos',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}º/,
+    ordinal: '%dº',
+    invalidDate: 'Data inválida',
+});
diff --git a/backend/node_modules/moment/src/locale/pt.js b/backend/node_modules/moment/src/locale/pt.js
new file mode 100644
index 0000000..d9b6055
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/pt.js
@@ -0,0 +1,63 @@
+//! moment.js locale configuration
+//! locale : Portuguese [pt]
+//! author : Jefferson : https://github.com/jalex79
+
+import moment from '../moment';
+
+export default moment.defineLocale('pt', {
+    months: 'janeiro_fevereiro_março_abril_maio_junho_julho_agosto_setembro_outubro_novembro_dezembro'.split(
+        '_'
+    ),
+    monthsShort: 'jan_fev_mar_abr_mai_jun_jul_ago_set_out_nov_dez'.split('_'),
+    weekdays:
+        'Domingo_Segunda-feira_Terça-feira_Quarta-feira_Quinta-feira_Sexta-feira_Sábado'.split(
+            '_'
+        ),
+    weekdaysShort: 'Dom_Seg_Ter_Qua_Qui_Sex_Sáb'.split('_'),
+    weekdaysMin: 'Do_2ª_3ª_4ª_5ª_6ª_Sá'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D [de] MMMM [de] YYYY',
+        LLL: 'D [de] MMMM [de] YYYY HH:mm',
+        LLLL: 'dddd, D [de] MMMM [de] YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Hoje às] LT',
+        nextDay: '[Amanhã às] LT',
+        nextWeek: 'dddd [às] LT',
+        lastDay: '[Ontem às] LT',
+        lastWeek: function () {
+            return this.day() === 0 || this.day() === 6
+                ? '[Último] dddd [às] LT' // Saturday + Sunday
+                : '[Última] dddd [às] LT'; // Monday - Friday
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'em %s',
+        past: 'há %s',
+        s: 'segundos',
+        ss: '%d segundos',
+        m: 'um minuto',
+        mm: '%d minutos',
+        h: 'uma hora',
+        hh: '%d horas',
+        d: 'um dia',
+        dd: '%d dias',
+        w: 'uma semana',
+        ww: '%d semanas',
+        M: 'um mês',
+        MM: '%d meses',
+        y: 'um ano',
+        yy: '%d anos',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}º/,
+    ordinal: '%dº',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ro.js b/backend/node_modules/moment/src/locale/ro.js
new file mode 100644
index 0000000..d5bc5ea
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ro.js
@@ -0,0 +1,76 @@
+//! moment.js locale configuration
+//! locale : Romanian [ro]
+//! author : Vlad Gurdiga : https://github.com/gurdiga
+//! author : Valentin Agachi : https://github.com/avaly
+//! author : Emanuel Cepoi : https://github.com/cepem
+
+import moment from '../moment';
+
+function relativeTimeWithPlural(number, withoutSuffix, key) {
+    var format = {
+            ss: 'secunde',
+            mm: 'minute',
+            hh: 'ore',
+            dd: 'zile',
+            ww: 'săptămâni',
+            MM: 'luni',
+            yy: 'ani',
+        },
+        separator = ' ';
+    if (number % 100 >= 20 || (number >= 100 && number % 100 === 0)) {
+        separator = ' de ';
+    }
+    return number + separator + format[key];
+}
+
+export default moment.defineLocale('ro', {
+    months: 'ianuarie_februarie_martie_aprilie_mai_iunie_iulie_august_septembrie_octombrie_noiembrie_decembrie'.split(
+        '_'
+    ),
+    monthsShort:
+        'ian._feb._mart._apr._mai_iun._iul._aug._sept._oct._nov._dec.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'duminică_luni_marți_miercuri_joi_vineri_sâmbătă'.split('_'),
+    weekdaysShort: 'Dum_Lun_Mar_Mie_Joi_Vin_Sâm'.split('_'),
+    weekdaysMin: 'Du_Lu_Ma_Mi_Jo_Vi_Sâ'.split('_'),
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY H:mm',
+        LLLL: 'dddd, D MMMM YYYY H:mm',
+    },
+    calendar: {
+        sameDay: '[azi la] LT',
+        nextDay: '[mâine la] LT',
+        nextWeek: 'dddd [la] LT',
+        lastDay: '[ieri la] LT',
+        lastWeek: '[fosta] dddd [la] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'peste %s',
+        past: '%s în urmă',
+        s: 'câteva secunde',
+        ss: relativeTimeWithPlural,
+        m: 'un minut',
+        mm: relativeTimeWithPlural,
+        h: 'o oră',
+        hh: relativeTimeWithPlural,
+        d: 'o zi',
+        dd: relativeTimeWithPlural,
+        w: 'o săptămână',
+        ww: relativeTimeWithPlural,
+        M: 'o lună',
+        MM: relativeTimeWithPlural,
+        y: 'un an',
+        yy: relativeTimeWithPlural,
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ru.js b/backend/node_modules/moment/src/locale/ru.js
new file mode 100644
index 0000000..d214850
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ru.js
@@ -0,0 +1,213 @@
+//! moment.js locale configuration
+//! locale : Russian [ru]
+//! author : Viktorminator : https://github.com/Viktorminator
+//! author : Menelion Elensúle : https://github.com/Oire
+//! author : Коренберг Марк : https://github.com/socketpair
+
+import moment from '../moment';
+
+function plural(word, num) {
+    var forms = word.split('_');
+    return num % 10 === 1 && num % 100 !== 11
+        ? forms[0]
+        : num % 10 >= 2 && num % 10 <= 4 && (num % 100 < 10 || num % 100 >= 20)
+          ? forms[1]
+          : forms[2];
+}
+function relativeTimeWithPlural(number, withoutSuffix, key) {
+    var format = {
+        ss: withoutSuffix ? 'секунда_секунды_секунд' : 'секунду_секунды_секунд',
+        mm: withoutSuffix ? 'минута_минуты_минут' : 'минуту_минуты_минут',
+        hh: 'час_часа_часов',
+        dd: 'день_дня_дней',
+        ww: 'неделя_недели_недель',
+        MM: 'месяц_месяца_месяцев',
+        yy: 'год_года_лет',
+    };
+    if (key === 'm') {
+        return withoutSuffix ? 'минута' : 'минуту';
+    } else {
+        return number + ' ' + plural(format[key], +number);
+    }
+}
+var monthsParse = [
+    /^янв/i,
+    /^фев/i,
+    /^мар/i,
+    /^апр/i,
+    /^ма[йя]/i,
+    /^июн/i,
+    /^июл/i,
+    /^авг/i,
+    /^сен/i,
+    /^окт/i,
+    /^ноя/i,
+    /^дек/i,
+];
+
+// http://new.gramota.ru/spravka/rules/139-prop : § 103
+// Сокращения месяцев: http://new.gramota.ru/spravka/buro/search-answer?s=242637
+// CLDR data:          http://www.unicode.org/cldr/charts/28/summary/ru.html#1753
+export default moment.defineLocale('ru', {
+    months: {
+        format: 'января_февраля_марта_апреля_мая_июня_июля_августа_сентября_октября_ноября_декабря'.split(
+            '_'
+        ),
+        standalone:
+            'январь_февраль_март_апрель_май_июнь_июль_август_сентябрь_октябрь_ноябрь_декабрь'.split(
+                '_'
+            ),
+    },
+    monthsShort: {
+        // по CLDR именно "июл." и "июн.", но какой смысл менять букву на точку?
+        format: 'янв._февр._мар._апр._мая_июня_июля_авг._сент._окт._нояб._дек.'.split(
+            '_'
+        ),
+        standalone:
+            'янв._февр._март_апр._май_июнь_июль_авг._сент._окт._нояб._дек.'.split(
+                '_'
+            ),
+    },
+    weekdays: {
+        standalone:
+            'воскресенье_понедельник_вторник_среда_четверг_пятница_суббота'.split(
+                '_'
+            ),
+        format: 'воскресенье_понедельник_вторник_среду_четверг_пятницу_субботу'.split(
+            '_'
+        ),
+        isFormat: /\[ ?[Вв] ?(?:прошлую|следующую|эту)? ?] ?dddd/,
+    },
+    weekdaysShort: 'вс_пн_вт_ср_чт_пт_сб'.split('_'),
+    weekdaysMin: 'вс_пн_вт_ср_чт_пт_сб'.split('_'),
+    monthsParse: monthsParse,
+    longMonthsParse: monthsParse,
+    shortMonthsParse: monthsParse,
+
+    // полные названия с падежами, по три буквы, для некоторых, по 4 буквы, сокращения с точкой и без точки
+    monthsRegex:
+        /^(январ[ья]|янв\.?|феврал[ья]|февр?\.?|марта?|мар\.?|апрел[ья]|апр\.?|ма[йя]|июн[ья]|июн\.?|июл[ья]|июл\.?|августа?|авг\.?|сентябр[ья]|сент?\.?|октябр[ья]|окт\.?|ноябр[ья]|нояб?\.?|декабр[ья]|дек\.?)/i,
+
+    // копия предыдущего
+    monthsShortRegex:
+        /^(январ[ья]|янв\.?|феврал[ья]|февр?\.?|марта?|мар\.?|апрел[ья]|апр\.?|ма[йя]|июн[ья]|июн\.?|июл[ья]|июл\.?|августа?|авг\.?|сентябр[ья]|сент?\.?|октябр[ья]|окт\.?|ноябр[ья]|нояб?\.?|декабр[ья]|дек\.?)/i,
+
+    // полные названия с падежами
+    monthsStrictRegex:
+        /^(январ[яь]|феврал[яь]|марта?|апрел[яь]|ма[яй]|июн[яь]|июл[яь]|августа?|сентябр[яь]|октябр[яь]|ноябр[яь]|декабр[яь])/i,
+
+    // Выражение, которое соответствует только сокращённым формам
+    monthsShortStrictRegex:
+        /^(янв\.|февр?\.|мар[т.]|апр\.|ма[яй]|июн[ья.]|июл[ья.]|авг\.|сент?\.|окт\.|нояб?\.|дек\.)/i,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY г.',
+        LLL: 'D MMMM YYYY г., H:mm',
+        LLLL: 'dddd, D MMMM YYYY г., H:mm',
+    },
+    calendar: {
+        sameDay: '[Сегодня, в] LT',
+        nextDay: '[Завтра, в] LT',
+        lastDay: '[Вчера, в] LT',
+        nextWeek: function (now) {
+            if (now.week() !== this.week()) {
+                switch (this.day()) {
+                    case 0:
+                        return '[В следующее] dddd, [в] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                        return '[В следующий] dddd, [в] LT';
+                    case 3:
+                    case 5:
+                    case 6:
+                        return '[В следующую] dddd, [в] LT';
+                }
+            } else {
+                if (this.day() === 2) {
+                    return '[Во] dddd, [в] LT';
+                } else {
+                    return '[В] dddd, [в] LT';
+                }
+            }
+        },
+        lastWeek: function (now) {
+            if (now.week() !== this.week()) {
+                switch (this.day()) {
+                    case 0:
+                        return '[В прошлое] dddd, [в] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                        return '[В прошлый] dddd, [в] LT';
+                    case 3:
+                    case 5:
+                    case 6:
+                        return '[В прошлую] dddd, [в] LT';
+                }
+            } else {
+                if (this.day() === 2) {
+                    return '[Во] dddd, [в] LT';
+                } else {
+                    return '[В] dddd, [в] LT';
+                }
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'через %s',
+        past: '%s назад',
+        s: 'несколько секунд',
+        ss: relativeTimeWithPlural,
+        m: relativeTimeWithPlural,
+        mm: relativeTimeWithPlural,
+        h: 'час',
+        hh: relativeTimeWithPlural,
+        d: 'день',
+        dd: relativeTimeWithPlural,
+        w: 'неделя',
+        ww: relativeTimeWithPlural,
+        M: 'месяц',
+        MM: relativeTimeWithPlural,
+        y: 'год',
+        yy: relativeTimeWithPlural,
+    },
+    meridiemParse: /ночи|утра|дня|вечера/i,
+    isPM: function (input) {
+        return /^(дня|вечера)$/.test(input);
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'ночи';
+        } else if (hour < 12) {
+            return 'утра';
+        } else if (hour < 17) {
+            return 'дня';
+        } else {
+            return 'вечера';
+        }
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}-(й|го|я)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'M':
+            case 'd':
+            case 'DDD':
+                return number + '-й';
+            case 'D':
+                return number + '-го';
+            case 'w':
+            case 'W':
+                return number + '-я';
+            default:
+                return number;
+        }
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/sd.js b/backend/node_modules/moment/src/locale/sd.js
new file mode 100644
index 0000000..20f1059
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/sd.js
@@ -0,0 +1,81 @@
+//! moment.js locale configuration
+//! locale : Sindhi [sd]
+//! author : Narain Sagar : https://github.com/narainsagar
+
+import moment from '../moment';
+
+var months = [
+        'جنوري',
+        'فيبروري',
+        'مارچ',
+        'اپريل',
+        'مئي',
+        'جون',
+        'جولاءِ',
+        'آگسٽ',
+        'سيپٽمبر',
+        'آڪٽوبر',
+        'نومبر',
+        'ڊسمبر',
+    ],
+    days = ['آچر', 'سومر', 'اڱارو', 'اربع', 'خميس', 'جمع', 'ڇنڇر'];
+
+export default moment.defineLocale('sd', {
+    months: months,
+    monthsShort: months,
+    weekdays: days,
+    weekdaysShort: days,
+    weekdaysMin: days,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd، D MMMM YYYY HH:mm',
+    },
+    meridiemParse: /صبح|شام/,
+    isPM: function (input) {
+        return 'شام' === input;
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'صبح';
+        }
+        return 'شام';
+    },
+    calendar: {
+        sameDay: '[اڄ] LT',
+        nextDay: '[سڀاڻي] LT',
+        nextWeek: 'dddd [اڳين هفتي تي] LT',
+        lastDay: '[ڪالهه] LT',
+        lastWeek: '[گزريل هفتي] dddd [تي] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s پوء',
+        past: '%s اڳ',
+        s: 'چند سيڪنڊ',
+        ss: '%d سيڪنڊ',
+        m: 'هڪ منٽ',
+        mm: '%d منٽ',
+        h: 'هڪ ڪلاڪ',
+        hh: '%d ڪلاڪ',
+        d: 'هڪ ڏينهن',
+        dd: '%d ڏينهن',
+        M: 'هڪ مهينو',
+        MM: '%d مهينا',
+        y: 'هڪ سال',
+        yy: '%d سال',
+    },
+    preparse: function (string) {
+        return string.replace(/،/g, ',');
+    },
+    postformat: function (string) {
+        return string.replace(/,/g, '،');
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/se.js b/backend/node_modules/moment/src/locale/se.js
new file mode 100644
index 0000000..e8eec58
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/se.js
@@ -0,0 +1,57 @@
+//! moment.js locale configuration
+//! locale : Northern Sami [se]
+//! authors : Bård Rolstad Henriksen : https://github.com/karamell
+
+import moment from '../moment';
+
+export default moment.defineLocale('se', {
+    months: 'ođđajagemánnu_guovvamánnu_njukčamánnu_cuoŋománnu_miessemánnu_geassemánnu_suoidnemánnu_borgemánnu_čakčamánnu_golggotmánnu_skábmamánnu_juovlamánnu'.split(
+        '_'
+    ),
+    monthsShort:
+        'ođđj_guov_njuk_cuo_mies_geas_suoi_borg_čakč_golg_skáb_juov'.split('_'),
+    weekdays:
+        'sotnabeaivi_vuossárga_maŋŋebárga_gaskavahkku_duorastat_bearjadat_lávvardat'.split(
+            '_'
+        ),
+    weekdaysShort: 'sotn_vuos_maŋ_gask_duor_bear_láv'.split('_'),
+    weekdaysMin: 's_v_m_g_d_b_L'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'MMMM D. [b.] YYYY',
+        LLL: 'MMMM D. [b.] YYYY [ti.] HH:mm',
+        LLLL: 'dddd, MMMM D. [b.] YYYY [ti.] HH:mm',
+    },
+    calendar: {
+        sameDay: '[otne ti] LT',
+        nextDay: '[ihttin ti] LT',
+        nextWeek: 'dddd [ti] LT',
+        lastDay: '[ikte ti] LT',
+        lastWeek: '[ovddit] dddd [ti] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s geažes',
+        past: 'maŋit %s',
+        s: 'moadde sekunddat',
+        ss: '%d sekunddat',
+        m: 'okta minuhta',
+        mm: '%d minuhtat',
+        h: 'okta diimmu',
+        hh: '%d diimmut',
+        d: 'okta beaivi',
+        dd: '%d beaivvit',
+        M: 'okta mánnu',
+        MM: '%d mánut',
+        y: 'okta jahki',
+        yy: '%d jagit',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/si.js b/backend/node_modules/moment/src/locale/si.js
new file mode 100644
index 0000000..0f2498c
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/si.js
@@ -0,0 +1,69 @@
+//! moment.js locale configuration
+//! locale : Sinhalese [si]
+//! author : Sampath Sitinamaluwa : https://github.com/sampathsris
+
+import moment from '../moment';
+
+/*jshint -W100*/
+export default moment.defineLocale('si', {
+    months: 'ජනවාරි_පෙබරවාරි_මාර්තු_අප්‍රේල්_මැයි_ජූනි_ජූලි_අගෝස්තු_සැප්තැම්බර්_ඔක්තෝබර්_නොවැම්බර්_දෙසැම්බර්'.split(
+        '_'
+    ),
+    monthsShort: 'ජන_පෙබ_මාර්_අප්_මැයි_ජූනි_ජූලි_අගෝ_සැප්_ඔක්_නොවැ_දෙසැ'.split(
+        '_'
+    ),
+    weekdays:
+        'ඉරිදා_සඳුදා_අඟහරුවාදා_බදාදා_බ්‍රහස්පතින්දා_සිකුරාදා_සෙනසුරාදා'.split(
+            '_'
+        ),
+    weekdaysShort: 'ඉරි_සඳු_අඟ_බදා_බ්‍රහ_සිකු_සෙන'.split('_'),
+    weekdaysMin: 'ඉ_ස_අ_බ_බ්‍ර_සි_සෙ'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'a h:mm',
+        LTS: 'a h:mm:ss',
+        L: 'YYYY/MM/DD',
+        LL: 'YYYY MMMM D',
+        LLL: 'YYYY MMMM D, a h:mm',
+        LLLL: 'YYYY MMMM D [වැනි] dddd, a h:mm:ss',
+    },
+    calendar: {
+        sameDay: '[අද] LT[ට]',
+        nextDay: '[හෙට] LT[ට]',
+        nextWeek: 'dddd LT[ට]',
+        lastDay: '[ඊයේ] LT[ට]',
+        lastWeek: '[පසුගිය] dddd LT[ට]',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%sකින්',
+        past: '%sකට පෙර',
+        s: 'තත්පර කිහිපය',
+        ss: 'තත්පර %d',
+        m: 'මිනිත්තුව',
+        mm: 'මිනිත්තු %d',
+        h: 'පැය',
+        hh: 'පැය %d',
+        d: 'දිනය',
+        dd: 'දින %d',
+        M: 'මාසය',
+        MM: 'මාස %d',
+        y: 'වසර',
+        yy: 'වසර %d',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2} වැනි/,
+    ordinal: function (number) {
+        return number + ' වැනි';
+    },
+    meridiemParse: /පෙර වරු|පස් වරු|පෙ.ව|ප.ව./,
+    isPM: function (input) {
+        return input === 'ප.ව.' || input === 'පස් වරු';
+    },
+    meridiem: function (hours, minutes, isLower) {
+        if (hours > 11) {
+            return isLower ? 'ප.ව.' : 'පස් වරු';
+        } else {
+            return isLower ? 'පෙ.ව.' : 'පෙර වරු';
+        }
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/sk.js b/backend/node_modules/moment/src/locale/sk.js
new file mode 100644
index 0000000..7162ed6
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/sk.js
@@ -0,0 +1,145 @@
+//! moment.js locale configuration
+//! locale : Slovak [sk]
+//! author : Martin Minka : https://github.com/k2s
+//! based on work of petrbela : https://github.com/petrbela
+
+import moment from '../moment';
+
+var months =
+        'január_február_marec_apríl_máj_jún_júl_august_september_október_november_december'.split(
+            '_'
+        ),
+    monthsShort = 'jan_feb_mar_apr_máj_jún_júl_aug_sep_okt_nov_dec'.split('_');
+function plural(n) {
+    return n > 1 && n < 5;
+}
+function translate(number, withoutSuffix, key, isFuture) {
+    var result = number + ' ';
+    switch (key) {
+        case 's': // a few seconds / in a few seconds / a few seconds ago
+            return withoutSuffix || isFuture ? 'pár sekúnd' : 'pár sekundami';
+        case 'ss': // 9 seconds / in 9 seconds / 9 seconds ago
+            if (withoutSuffix || isFuture) {
+                return result + (plural(number) ? 'sekundy' : 'sekúnd');
+            } else {
+                return result + 'sekundami';
+            }
+        case 'm': // a minute / in a minute / a minute ago
+            return withoutSuffix ? 'minúta' : isFuture ? 'minútu' : 'minútou';
+        case 'mm': // 9 minutes / in 9 minutes / 9 minutes ago
+            if (withoutSuffix || isFuture) {
+                return result + (plural(number) ? 'minúty' : 'minút');
+            } else {
+                return result + 'minútami';
+            }
+        case 'h': // an hour / in an hour / an hour ago
+            return withoutSuffix ? 'hodina' : isFuture ? 'hodinu' : 'hodinou';
+        case 'hh': // 9 hours / in 9 hours / 9 hours ago
+            if (withoutSuffix || isFuture) {
+                return result + (plural(number) ? 'hodiny' : 'hodín');
+            } else {
+                return result + 'hodinami';
+            }
+        case 'd': // a day / in a day / a day ago
+            return withoutSuffix || isFuture ? 'deň' : 'dňom';
+        case 'dd': // 9 days / in 9 days / 9 days ago
+            if (withoutSuffix || isFuture) {
+                return result + (plural(number) ? 'dni' : 'dní');
+            } else {
+                return result + 'dňami';
+            }
+        case 'M': // a month / in a month / a month ago
+            return withoutSuffix || isFuture ? 'mesiac' : 'mesiacom';
+        case 'MM': // 9 months / in 9 months / 9 months ago
+            if (withoutSuffix || isFuture) {
+                return result + (plural(number) ? 'mesiace' : 'mesiacov');
+            } else {
+                return result + 'mesiacmi';
+            }
+        case 'y': // a year / in a year / a year ago
+            return withoutSuffix || isFuture ? 'rok' : 'rokom';
+        case 'yy': // 9 years / in 9 years / 9 years ago
+            if (withoutSuffix || isFuture) {
+                return result + (plural(number) ? 'roky' : 'rokov');
+            } else {
+                return result + 'rokmi';
+            }
+    }
+}
+
+export default moment.defineLocale('sk', {
+    months: months,
+    monthsShort: monthsShort,
+    weekdays: 'nedeľa_pondelok_utorok_streda_štvrtok_piatok_sobota'.split('_'),
+    weekdaysShort: 'ne_po_ut_st_št_pi_so'.split('_'),
+    weekdaysMin: 'ne_po_ut_st_št_pi_so'.split('_'),
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY H:mm',
+        LLLL: 'dddd D. MMMM YYYY H:mm',
+    },
+    calendar: {
+        sameDay: '[dnes o] LT',
+        nextDay: '[zajtra o] LT',
+        nextWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[v nedeľu o] LT';
+                case 1:
+                case 2:
+                    return '[v] dddd [o] LT';
+                case 3:
+                    return '[v stredu o] LT';
+                case 4:
+                    return '[vo štvrtok o] LT';
+                case 5:
+                    return '[v piatok o] LT';
+                case 6:
+                    return '[v sobotu o] LT';
+            }
+        },
+        lastDay: '[včera o] LT',
+        lastWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[minulú nedeľu o] LT';
+                case 1:
+                case 2:
+                    return '[minulý] dddd [o] LT';
+                case 3:
+                    return '[minulú stredu o] LT';
+                case 4:
+                case 5:
+                    return '[minulý] dddd [o] LT';
+                case 6:
+                    return '[minulú sobotu o] LT';
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'za %s',
+        past: 'pred %s',
+        s: translate,
+        ss: translate,
+        m: translate,
+        mm: translate,
+        h: translate,
+        hh: translate,
+        d: translate,
+        dd: translate,
+        M: translate,
+        MM: translate,
+        y: translate,
+        yy: translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/sl.js b/backend/node_modules/moment/src/locale/sl.js
new file mode 100644
index 0000000..0290a8e
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/sl.js
@@ -0,0 +1,171 @@
+//! moment.js locale configuration
+//! locale : Slovenian [sl]
+//! author : Robert Sedovšek : https://github.com/sedovsek
+
+import moment from '../moment';
+
+function processRelativeTime(number, withoutSuffix, key, isFuture) {
+    var result = number + ' ';
+    switch (key) {
+        case 's':
+            return withoutSuffix || isFuture
+                ? 'nekaj sekund'
+                : 'nekaj sekundami';
+        case 'ss':
+            if (number === 1) {
+                result += withoutSuffix ? 'sekundo' : 'sekundi';
+            } else if (number === 2) {
+                result += withoutSuffix || isFuture ? 'sekundi' : 'sekundah';
+            } else if (number < 5) {
+                result += withoutSuffix || isFuture ? 'sekunde' : 'sekundah';
+            } else {
+                result += 'sekund';
+            }
+            return result;
+        case 'm':
+            return withoutSuffix ? 'ena minuta' : 'eno minuto';
+        case 'mm':
+            if (number === 1) {
+                result += withoutSuffix ? 'minuta' : 'minuto';
+            } else if (number === 2) {
+                result += withoutSuffix || isFuture ? 'minuti' : 'minutama';
+            } else if (number < 5) {
+                result += withoutSuffix || isFuture ? 'minute' : 'minutami';
+            } else {
+                result += withoutSuffix || isFuture ? 'minut' : 'minutami';
+            }
+            return result;
+        case 'h':
+            return withoutSuffix ? 'ena ura' : 'eno uro';
+        case 'hh':
+            if (number === 1) {
+                result += withoutSuffix ? 'ura' : 'uro';
+            } else if (number === 2) {
+                result += withoutSuffix || isFuture ? 'uri' : 'urama';
+            } else if (number < 5) {
+                result += withoutSuffix || isFuture ? 'ure' : 'urami';
+            } else {
+                result += withoutSuffix || isFuture ? 'ur' : 'urami';
+            }
+            return result;
+        case 'd':
+            return withoutSuffix || isFuture ? 'en dan' : 'enim dnem';
+        case 'dd':
+            if (number === 1) {
+                result += withoutSuffix || isFuture ? 'dan' : 'dnem';
+            } else if (number === 2) {
+                result += withoutSuffix || isFuture ? 'dni' : 'dnevoma';
+            } else {
+                result += withoutSuffix || isFuture ? 'dni' : 'dnevi';
+            }
+            return result;
+        case 'M':
+            return withoutSuffix || isFuture ? 'en mesec' : 'enim mesecem';
+        case 'MM':
+            if (number === 1) {
+                result += withoutSuffix || isFuture ? 'mesec' : 'mesecem';
+            } else if (number === 2) {
+                result += withoutSuffix || isFuture ? 'meseca' : 'mesecema';
+            } else if (number < 5) {
+                result += withoutSuffix || isFuture ? 'mesece' : 'meseci';
+            } else {
+                result += withoutSuffix || isFuture ? 'mesecev' : 'meseci';
+            }
+            return result;
+        case 'y':
+            return withoutSuffix || isFuture ? 'eno leto' : 'enim letom';
+        case 'yy':
+            if (number === 1) {
+                result += withoutSuffix || isFuture ? 'leto' : 'letom';
+            } else if (number === 2) {
+                result += withoutSuffix || isFuture ? 'leti' : 'letoma';
+            } else if (number < 5) {
+                result += withoutSuffix || isFuture ? 'leta' : 'leti';
+            } else {
+                result += withoutSuffix || isFuture ? 'let' : 'leti';
+            }
+            return result;
+    }
+}
+
+export default moment.defineLocale('sl', {
+    months: 'januar_februar_marec_april_maj_junij_julij_avgust_september_oktober_november_december'.split(
+        '_'
+    ),
+    monthsShort:
+        'jan._feb._mar._apr._maj._jun._jul._avg._sep._okt._nov._dec.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'nedelja_ponedeljek_torek_sreda_četrtek_petek_sobota'.split('_'),
+    weekdaysShort: 'ned._pon._tor._sre._čet._pet._sob.'.split('_'),
+    weekdaysMin: 'ne_po_to_sr_če_pe_so'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD. MM. YYYY',
+        LL: 'D. MMMM YYYY',
+        LLL: 'D. MMMM YYYY H:mm',
+        LLLL: 'dddd, D. MMMM YYYY H:mm',
+    },
+    calendar: {
+        sameDay: '[danes ob] LT',
+        nextDay: '[jutri ob] LT',
+
+        nextWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[v] [nedeljo] [ob] LT';
+                case 3:
+                    return '[v] [sredo] [ob] LT';
+                case 6:
+                    return '[v] [soboto] [ob] LT';
+                case 1:
+                case 2:
+                case 4:
+                case 5:
+                    return '[v] dddd [ob] LT';
+            }
+        },
+        lastDay: '[včeraj ob] LT',
+        lastWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[prejšnjo] [nedeljo] [ob] LT';
+                case 3:
+                    return '[prejšnjo] [sredo] [ob] LT';
+                case 6:
+                    return '[prejšnjo] [soboto] [ob] LT';
+                case 1:
+                case 2:
+                case 4:
+                case 5:
+                    return '[prejšnji] dddd [ob] LT';
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'čez %s',
+        past: 'pred %s',
+        s: processRelativeTime,
+        ss: processRelativeTime,
+        m: processRelativeTime,
+        mm: processRelativeTime,
+        h: processRelativeTime,
+        hh: processRelativeTime,
+        d: processRelativeTime,
+        dd: processRelativeTime,
+        M: processRelativeTime,
+        MM: processRelativeTime,
+        y: processRelativeTime,
+        yy: processRelativeTime,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/sq.js b/backend/node_modules/moment/src/locale/sq.js
new file mode 100644
index 0000000..3b3bcfa
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/sq.js
@@ -0,0 +1,65 @@
+//! moment.js locale configuration
+//! locale : Albanian [sq]
+//! author : Flakërim Ismani : https://github.com/flakerimi
+//! author : Menelion Elensúle : https://github.com/Oire
+//! author : Oerd Cukalla : https://github.com/oerd
+
+import moment from '../moment';
+
+export default moment.defineLocale('sq', {
+    months: 'Janar_Shkurt_Mars_Prill_Maj_Qershor_Korrik_Gusht_Shtator_Tetor_Nëntor_Dhjetor'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Shk_Mar_Pri_Maj_Qer_Kor_Gus_Sht_Tet_Nën_Dhj'.split('_'),
+    weekdays: 'E Diel_E Hënë_E Martë_E Mërkurë_E Enjte_E Premte_E Shtunë'.split(
+        '_'
+    ),
+    weekdaysShort: 'Die_Hën_Mar_Mër_Enj_Pre_Sht'.split('_'),
+    weekdaysMin: 'D_H_Ma_Më_E_P_Sh'.split('_'),
+    weekdaysParseExact: true,
+    meridiemParse: /PD|MD/,
+    isPM: function (input) {
+        return input.charAt(0) === 'M';
+    },
+    meridiem: function (hours, minutes, isLower) {
+        return hours < 12 ? 'PD' : 'MD';
+    },
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Sot në] LT',
+        nextDay: '[Nesër në] LT',
+        nextWeek: 'dddd [në] LT',
+        lastDay: '[Dje në] LT',
+        lastWeek: 'dddd [e kaluar në] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'në %s',
+        past: '%s më parë',
+        s: 'disa sekonda',
+        ss: '%d sekonda',
+        m: 'një minutë',
+        mm: '%d minuta',
+        h: 'një orë',
+        hh: '%d orë',
+        d: 'një ditë',
+        dd: '%d ditë',
+        M: 'një muaj',
+        MM: '%d muaj',
+        y: 'një vit',
+        yy: '%d vite',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/sr-cyrl.js b/backend/node_modules/moment/src/locale/sr-cyrl.js
new file mode 100644
index 0000000..5e05810
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/sr-cyrl.js
@@ -0,0 +1,127 @@
+//! moment.js locale configuration
+//! locale : Serbian Cyrillic [sr-cyrl]
+//! author : Milan Janačković<milanjanackovic@gmail.com> : https://github.com/milan-j
+//! author : Stefan Crnjaković <stefan@hotmail.rs> : https://github.com/crnjakovic
+
+import moment from '../moment';
+
+var translator = {
+    words: {
+        //Different grammatical cases
+        ss: ['секунда', 'секунде', 'секунди'],
+        m: ['један минут', 'једног минута'],
+        mm: ['минут', 'минута', 'минута'],
+        h: ['један сат', 'једног сата'],
+        hh: ['сат', 'сата', 'сати'],
+        d: ['један дан', 'једног дана'],
+        dd: ['дан', 'дана', 'дана'],
+        M: ['један месец', 'једног месеца'],
+        MM: ['месец', 'месеца', 'месеци'],
+        y: ['једну годину', 'једне године'],
+        yy: ['годину', 'године', 'година'],
+    },
+    correctGrammaticalCase: function (number, wordKey) {
+        if (
+            number % 10 >= 1 &&
+            number % 10 <= 4 &&
+            (number % 100 < 10 || number % 100 >= 20)
+        ) {
+            return number % 10 === 1 ? wordKey[0] : wordKey[1];
+        }
+        return wordKey[2];
+    },
+    translate: function (number, withoutSuffix, key, isFuture) {
+        var wordKey = translator.words[key],
+            word;
+
+        if (key.length === 1) {
+            // Nominativ
+            if (key === 'y' && withoutSuffix) return 'једна година';
+            return isFuture || withoutSuffix ? wordKey[0] : wordKey[1];
+        }
+
+        word = translator.correctGrammaticalCase(number, wordKey);
+        // Nominativ
+        if (key === 'yy' && withoutSuffix && word === 'годину') {
+            return number + ' година';
+        }
+
+        return number + ' ' + word;
+    },
+};
+
+export default moment.defineLocale('sr-cyrl', {
+    months: 'јануар_фебруар_март_април_мај_јун_јул_август_септембар_октобар_новембар_децембар'.split(
+        '_'
+    ),
+    monthsShort:
+        'јан._феб._мар._апр._мај_јун_јул_авг._сеп._окт._нов._дец.'.split('_'),
+    monthsParseExact: true,
+    weekdays: 'недеља_понедељак_уторак_среда_четвртак_петак_субота'.split('_'),
+    weekdaysShort: 'нед._пон._уто._сре._чет._пет._суб.'.split('_'),
+    weekdaysMin: 'не_по_ут_ср_че_пе_су'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'D. M. YYYY.',
+        LL: 'D. MMMM YYYY.',
+        LLL: 'D. MMMM YYYY. H:mm',
+        LLLL: 'dddd, D. MMMM YYYY. H:mm',
+    },
+    calendar: {
+        sameDay: '[данас у] LT',
+        nextDay: '[сутра у] LT',
+        nextWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[у] [недељу] [у] LT';
+                case 3:
+                    return '[у] [среду] [у] LT';
+                case 6:
+                    return '[у] [суботу] [у] LT';
+                case 1:
+                case 2:
+                case 4:
+                case 5:
+                    return '[у] dddd [у] LT';
+            }
+        },
+        lastDay: '[јуче у] LT',
+        lastWeek: function () {
+            var lastWeekDays = [
+                '[прошле] [недеље] [у] LT',
+                '[прошлог] [понедељка] [у] LT',
+                '[прошлог] [уторка] [у] LT',
+                '[прошле] [среде] [у] LT',
+                '[прошлог] [четвртка] [у] LT',
+                '[прошлог] [петка] [у] LT',
+                '[прошле] [суботе] [у] LT',
+            ];
+            return lastWeekDays[this.day()];
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'за %s',
+        past: 'пре %s',
+        s: 'неколико секунди',
+        ss: translator.translate,
+        m: translator.translate,
+        mm: translator.translate,
+        h: translator.translate,
+        hh: translator.translate,
+        d: translator.translate,
+        dd: translator.translate,
+        M: translator.translate,
+        MM: translator.translate,
+        y: translator.translate,
+        yy: translator.translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 1st is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/sr.js b/backend/node_modules/moment/src/locale/sr.js
new file mode 100644
index 0000000..a407ec7
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/sr.js
@@ -0,0 +1,129 @@
+//! moment.js locale configuration
+//! locale : Serbian [sr]
+//! author : Milan Janačković<milanjanackovic@gmail.com> : https://github.com/milan-j
+//! author : Stefan Crnjaković <stefan@hotmail.rs> : https://github.com/crnjakovic
+
+import moment from '../moment';
+
+var translator = {
+    words: {
+        //Different grammatical cases
+        ss: ['sekunda', 'sekunde', 'sekundi'],
+        m: ['jedan minut', 'jednog minuta'],
+        mm: ['minut', 'minuta', 'minuta'],
+        h: ['jedan sat', 'jednog sata'],
+        hh: ['sat', 'sata', 'sati'],
+        d: ['jedan dan', 'jednog dana'],
+        dd: ['dan', 'dana', 'dana'],
+        M: ['jedan mesec', 'jednog meseca'],
+        MM: ['mesec', 'meseca', 'meseci'],
+        y: ['jednu godinu', 'jedne godine'],
+        yy: ['godinu', 'godine', 'godina'],
+    },
+    correctGrammaticalCase: function (number, wordKey) {
+        if (
+            number % 10 >= 1 &&
+            number % 10 <= 4 &&
+            (number % 100 < 10 || number % 100 >= 20)
+        ) {
+            return number % 10 === 1 ? wordKey[0] : wordKey[1];
+        }
+        return wordKey[2];
+    },
+    translate: function (number, withoutSuffix, key, isFuture) {
+        var wordKey = translator.words[key],
+            word;
+
+        if (key.length === 1) {
+            // Nominativ
+            if (key === 'y' && withoutSuffix) return 'jedna godina';
+            return isFuture || withoutSuffix ? wordKey[0] : wordKey[1];
+        }
+
+        word = translator.correctGrammaticalCase(number, wordKey);
+        // Nominativ
+        if (key === 'yy' && withoutSuffix && word === 'godinu') {
+            return number + ' godina';
+        }
+
+        return number + ' ' + word;
+    },
+};
+
+export default moment.defineLocale('sr', {
+    months: 'januar_februar_mart_april_maj_jun_jul_avgust_septembar_oktobar_novembar_decembar'.split(
+        '_'
+    ),
+    monthsShort:
+        'jan._feb._mar._apr._maj_jun_jul_avg._sep._okt._nov._dec.'.split('_'),
+    monthsParseExact: true,
+    weekdays: 'nedelja_ponedeljak_utorak_sreda_četvrtak_petak_subota'.split(
+        '_'
+    ),
+    weekdaysShort: 'ned._pon._uto._sre._čet._pet._sub.'.split('_'),
+    weekdaysMin: 'ne_po_ut_sr_če_pe_su'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'D. M. YYYY.',
+        LL: 'D. MMMM YYYY.',
+        LLL: 'D. MMMM YYYY. H:mm',
+        LLLL: 'dddd, D. MMMM YYYY. H:mm',
+    },
+    calendar: {
+        sameDay: '[danas u] LT',
+        nextDay: '[sutra u] LT',
+        nextWeek: function () {
+            switch (this.day()) {
+                case 0:
+                    return '[u] [nedelju] [u] LT';
+                case 3:
+                    return '[u] [sredu] [u] LT';
+                case 6:
+                    return '[u] [subotu] [u] LT';
+                case 1:
+                case 2:
+                case 4:
+                case 5:
+                    return '[u] dddd [u] LT';
+            }
+        },
+        lastDay: '[juče u] LT',
+        lastWeek: function () {
+            var lastWeekDays = [
+                '[prošle] [nedelje] [u] LT',
+                '[prošlog] [ponedeljka] [u] LT',
+                '[prošlog] [utorka] [u] LT',
+                '[prošle] [srede] [u] LT',
+                '[prošlog] [četvrtka] [u] LT',
+                '[prošlog] [petka] [u] LT',
+                '[prošle] [subote] [u] LT',
+            ];
+            return lastWeekDays[this.day()];
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'za %s',
+        past: 'pre %s',
+        s: 'nekoliko sekundi',
+        ss: translator.translate,
+        m: translator.translate,
+        mm: translator.translate,
+        h: translator.translate,
+        hh: translator.translate,
+        d: translator.translate,
+        dd: translator.translate,
+        M: translator.translate,
+        MM: translator.translate,
+        y: translator.translate,
+        yy: translator.translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ss.js b/backend/node_modules/moment/src/locale/ss.js
new file mode 100644
index 0000000..60db499
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ss.js
@@ -0,0 +1,84 @@
+//! moment.js locale configuration
+//! locale : siSwati [ss]
+//! author : Nicolai Davies<mail@nicolai.io> : https://github.com/nicolaidavies
+
+import moment from '../moment';
+
+export default moment.defineLocale('ss', {
+    months: "Bhimbidvwane_Indlovana_Indlov'lenkhulu_Mabasa_Inkhwekhweti_Inhlaba_Kholwane_Ingci_Inyoni_Imphala_Lweti_Ingongoni".split(
+        '_'
+    ),
+    monthsShort: 'Bhi_Ina_Inu_Mab_Ink_Inh_Kho_Igc_Iny_Imp_Lwe_Igo'.split('_'),
+    weekdays:
+        'Lisontfo_Umsombuluko_Lesibili_Lesitsatfu_Lesine_Lesihlanu_Umgcibelo'.split(
+            '_'
+        ),
+    weekdaysShort: 'Lis_Umb_Lsb_Les_Lsi_Lsh_Umg'.split('_'),
+    weekdaysMin: 'Li_Us_Lb_Lt_Ls_Lh_Ug'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'h:mm A',
+        LTS: 'h:mm:ss A',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY h:mm A',
+        LLLL: 'dddd, D MMMM YYYY h:mm A',
+    },
+    calendar: {
+        sameDay: '[Namuhla nga] LT',
+        nextDay: '[Kusasa nga] LT',
+        nextWeek: 'dddd [nga] LT',
+        lastDay: '[Itolo nga] LT',
+        lastWeek: 'dddd [leliphelile] [nga] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'nga %s',
+        past: 'wenteka nga %s',
+        s: 'emizuzwana lomcane',
+        ss: '%d mzuzwana',
+        m: 'umzuzu',
+        mm: '%d emizuzu',
+        h: 'lihora',
+        hh: '%d emahora',
+        d: 'lilanga',
+        dd: '%d emalanga',
+        M: 'inyanga',
+        MM: '%d tinyanga',
+        y: 'umnyaka',
+        yy: '%d iminyaka',
+    },
+    meridiemParse: /ekuseni|emini|entsambama|ebusuku/,
+    meridiem: function (hours, minutes, isLower) {
+        if (hours < 11) {
+            return 'ekuseni';
+        } else if (hours < 15) {
+            return 'emini';
+        } else if (hours < 19) {
+            return 'entsambama';
+        } else {
+            return 'ebusuku';
+        }
+    },
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'ekuseni') {
+            return hour;
+        } else if (meridiem === 'emini') {
+            return hour >= 11 ? hour : hour + 12;
+        } else if (meridiem === 'entsambama' || meridiem === 'ebusuku') {
+            if (hour === 0) {
+                return 0;
+            }
+            return hour + 12;
+        }
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}/,
+    ordinal: '%d',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/sv.js b/backend/node_modules/moment/src/locale/sv.js
new file mode 100644
index 0000000..4a37cdb
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/sv.js
@@ -0,0 +1,68 @@
+//! moment.js locale configuration
+//! locale : Swedish [sv]
+//! author : Jens Alm : https://github.com/ulmus
+
+import moment from '../moment';
+
+export default moment.defineLocale('sv', {
+    months: 'januari_februari_mars_april_maj_juni_juli_augusti_september_oktober_november_december'.split(
+        '_'
+    ),
+    monthsShort: 'jan_feb_mar_apr_maj_jun_jul_aug_sep_okt_nov_dec'.split('_'),
+    weekdays: 'söndag_måndag_tisdag_onsdag_torsdag_fredag_lördag'.split('_'),
+    weekdaysShort: 'sön_mån_tis_ons_tor_fre_lör'.split('_'),
+    weekdaysMin: 'sö_må_ti_on_to_fr_lö'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'YYYY-MM-DD',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY [kl.] HH:mm',
+        LLLL: 'dddd D MMMM YYYY [kl.] HH:mm',
+        lll: 'D MMM YYYY HH:mm',
+        llll: 'ddd D MMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Idag] LT',
+        nextDay: '[Imorgon] LT',
+        lastDay: '[Igår] LT',
+        nextWeek: '[På] dddd LT',
+        lastWeek: '[I] dddd[s] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'om %s',
+        past: 'för %s sedan',
+        s: 'några sekunder',
+        ss: '%d sekunder',
+        m: 'en minut',
+        mm: '%d minuter',
+        h: 'en timme',
+        hh: '%d timmar',
+        d: 'en dag',
+        dd: '%d dagar',
+        M: 'en månad',
+        MM: '%d månader',
+        y: 'ett år',
+        yy: '%d år',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(\:e|\:a)/,
+    ordinal: function (number) {
+        var b = number % 10,
+            output =
+                ~~((number % 100) / 10) === 1
+                    ? ':e'
+                    : b === 1
+                      ? ':a'
+                      : b === 2
+                        ? ':a'
+                        : b === 3
+                          ? ':e'
+                          : ':e';
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/sw.js b/backend/node_modules/moment/src/locale/sw.js
new file mode 100644
index 0000000..35a2668
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/sw.js
@@ -0,0 +1,55 @@
+//! moment.js locale configuration
+//! locale : Swahili [sw]
+//! author : Fahad Kassim : https://github.com/fadsel
+
+import moment from '../moment';
+
+export default moment.defineLocale('sw', {
+    months: 'Januari_Februari_Machi_Aprili_Mei_Juni_Julai_Agosti_Septemba_Oktoba_Novemba_Desemba'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Feb_Mac_Apr_Mei_Jun_Jul_Ago_Sep_Okt_Nov_Des'.split('_'),
+    weekdays:
+        'Jumapili_Jumatatu_Jumanne_Jumatano_Alhamisi_Ijumaa_Jumamosi'.split(
+            '_'
+        ),
+    weekdaysShort: 'Jpl_Jtat_Jnne_Jtan_Alh_Ijm_Jmos'.split('_'),
+    weekdaysMin: 'J2_J3_J4_J5_Al_Ij_J1'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'hh:mm A',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[leo saa] LT',
+        nextDay: '[kesho saa] LT',
+        nextWeek: '[wiki ijayo] dddd [saat] LT',
+        lastDay: '[jana] LT',
+        lastWeek: '[wiki iliyopita] dddd [saat] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s baadaye',
+        past: 'tokea %s',
+        s: 'hivi punde',
+        ss: 'sekunde %d',
+        m: 'dakika moja',
+        mm: 'dakika %d',
+        h: 'saa limoja',
+        hh: 'masaa %d',
+        d: 'siku moja',
+        dd: 'siku %d',
+        M: 'mwezi mmoja',
+        MM: 'miezi %d',
+        y: 'mwaka mmoja',
+        yy: 'miaka %d',
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ta.js b/backend/node_modules/moment/src/locale/ta.js
new file mode 100644
index 0000000..fdfa1ba
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ta.js
@@ -0,0 +1,131 @@
+//! moment.js locale configuration
+//! locale : Tamil [ta]
+//! author : Arjunkumar Krishnamoorthy : https://github.com/tk120404
+
+import moment from '../moment';
+
+var symbolMap = {
+        1: '௧',
+        2: '௨',
+        3: '௩',
+        4: '௪',
+        5: '௫',
+        6: '௬',
+        7: '௭',
+        8: '௮',
+        9: '௯',
+        0: '௦',
+    },
+    numberMap = {
+        '௧': '1',
+        '௨': '2',
+        '௩': '3',
+        '௪': '4',
+        '௫': '5',
+        '௬': '6',
+        '௭': '7',
+        '௮': '8',
+        '௯': '9',
+        '௦': '0',
+    };
+
+export default moment.defineLocale('ta', {
+    months: 'ஜனவரி_பிப்ரவரி_மார்ச்_ஏப்ரல்_மே_ஜூன்_ஜூலை_ஆகஸ்ட்_செப்டெம்பர்_அக்டோபர்_நவம்பர்_டிசம்பர்'.split(
+        '_'
+    ),
+    monthsShort:
+        'ஜனவரி_பிப்ரவரி_மார்ச்_ஏப்ரல்_மே_ஜூன்_ஜூலை_ஆகஸ்ட்_செப்டெம்பர்_அக்டோபர்_நவம்பர்_டிசம்பர்'.split(
+            '_'
+        ),
+    weekdays:
+        'ஞாயிற்றுக்கிழமை_திங்கட்கிழமை_செவ்வாய்கிழமை_புதன்கிழமை_வியாழக்கிழமை_வெள்ளிக்கிழமை_சனிக்கிழமை'.split(
+            '_'
+        ),
+    weekdaysShort: 'ஞாயிறு_திங்கள்_செவ்வாய்_புதன்_வியாழன்_வெள்ளி_சனி'.split(
+        '_'
+    ),
+    weekdaysMin: 'ஞா_தி_செ_பு_வி_வெ_ச'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY, HH:mm',
+        LLLL: 'dddd, D MMMM YYYY, HH:mm',
+    },
+    calendar: {
+        sameDay: '[இன்று] LT',
+        nextDay: '[நாளை] LT',
+        nextWeek: 'dddd, LT',
+        lastDay: '[நேற்று] LT',
+        lastWeek: '[கடந்த வாரம்] dddd, LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s இல்',
+        past: '%s முன்',
+        s: 'ஒரு சில விநாடிகள்',
+        ss: '%d விநாடிகள்',
+        m: 'ஒரு நிமிடம்',
+        mm: '%d நிமிடங்கள்',
+        h: 'ஒரு மணி நேரம்',
+        hh: '%d மணி நேரம்',
+        d: 'ஒரு நாள்',
+        dd: '%d நாட்கள்',
+        M: 'ஒரு மாதம்',
+        MM: '%d மாதங்கள்',
+        y: 'ஒரு வருடம்',
+        yy: '%d ஆண்டுகள்',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}வது/,
+    ordinal: function (number) {
+        return number + 'வது';
+    },
+    preparse: function (string) {
+        return string.replace(/[௧௨௩௪௫௬௭௮௯௦]/g, function (match) {
+            return numberMap[match];
+        });
+    },
+    postformat: function (string) {
+        return string.replace(/\d/g, function (match) {
+            return symbolMap[match];
+        });
+    },
+    // refer http://ta.wikipedia.org/s/1er1
+    meridiemParse: /யாமம்|வைகறை|காலை|நண்பகல்|எற்பாடு|மாலை/,
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 2) {
+            return ' யாமம்';
+        } else if (hour < 6) {
+            return ' வைகறை'; // வைகறை
+        } else if (hour < 10) {
+            return ' காலை'; // காலை
+        } else if (hour < 14) {
+            return ' நண்பகல்'; // நண்பகல்
+        } else if (hour < 18) {
+            return ' எற்பாடு'; // எற்பாடு
+        } else if (hour < 22) {
+            return ' மாலை'; // மாலை
+        } else {
+            return ' யாமம்';
+        }
+    },
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'யாமம்') {
+            return hour < 2 ? hour : hour + 12;
+        } else if (meridiem === 'வைகறை' || meridiem === 'காலை') {
+            return hour;
+        } else if (meridiem === 'நண்பகல்') {
+            return hour >= 10 ? hour : hour + 12;
+        } else {
+            return hour + 12;
+        }
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/te.js b/backend/node_modules/moment/src/locale/te.js
new file mode 100644
index 0000000..56f9f16
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/te.js
@@ -0,0 +1,88 @@
+//! moment.js locale configuration
+//! locale : Telugu [te]
+//! author : Krishna Chaitanya Thota : https://github.com/kcthota
+
+import moment from '../moment';
+
+export default moment.defineLocale('te', {
+    months: 'జనవరి_ఫిబ్రవరి_మార్చి_ఏప్రిల్_మే_జూన్_జులై_ఆగస్టు_సెప్టెంబర్_అక్టోబర్_నవంబర్_డిసెంబర్'.split(
+        '_'
+    ),
+    monthsShort:
+        'జన._ఫిబ్ర._మార్చి_ఏప్రి._మే_జూన్_జులై_ఆగ._సెప్._అక్టో._నవ._డిసె.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays:
+        'ఆదివారం_సోమవారం_మంగళవారం_బుధవారం_గురువారం_శుక్రవారం_శనివారం'.split(
+            '_'
+        ),
+    weekdaysShort: 'ఆది_సోమ_మంగళ_బుధ_గురు_శుక్ర_శని'.split('_'),
+    weekdaysMin: 'ఆ_సో_మం_బు_గు_శు_శ'.split('_'),
+    longDateFormat: {
+        LT: 'A h:mm',
+        LTS: 'A h:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY, A h:mm',
+        LLLL: 'dddd, D MMMM YYYY, A h:mm',
+    },
+    calendar: {
+        sameDay: '[నేడు] LT',
+        nextDay: '[రేపు] LT',
+        nextWeek: 'dddd, LT',
+        lastDay: '[నిన్న] LT',
+        lastWeek: '[గత] dddd, LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s లో',
+        past: '%s క్రితం',
+        s: 'కొన్ని క్షణాలు',
+        ss: '%d సెకన్లు',
+        m: 'ఒక నిమిషం',
+        mm: '%d నిమిషాలు',
+        h: 'ఒక గంట',
+        hh: '%d గంటలు',
+        d: 'ఒక రోజు',
+        dd: '%d రోజులు',
+        M: 'ఒక నెల',
+        MM: '%d నెలలు',
+        y: 'ఒక సంవత్సరం',
+        yy: '%d సంవత్సరాలు',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}వ/,
+    ordinal: '%dవ',
+    meridiemParse: /రాత్రి|ఉదయం|మధ్యాహ్నం|సాయంత్రం/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'రాత్రి') {
+            return hour < 4 ? hour : hour + 12;
+        } else if (meridiem === 'ఉదయం') {
+            return hour;
+        } else if (meridiem === 'మధ్యాహ్నం') {
+            return hour >= 10 ? hour : hour + 12;
+        } else if (meridiem === 'సాయంత్రం') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'రాత్రి';
+        } else if (hour < 10) {
+            return 'ఉదయం';
+        } else if (hour < 17) {
+            return 'మధ్యాహ్నం';
+        } else if (hour < 20) {
+            return 'సాయంత్రం';
+        } else {
+            return 'రాత్రి';
+        }
+    },
+    week: {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/tet.js b/backend/node_modules/moment/src/locale/tet.js
new file mode 100644
index 0000000..5f7d95c
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/tet.js
@@ -0,0 +1,68 @@
+//! moment.js locale configuration
+//! locale : Tetun Dili (East Timor) [tet]
+//! author : Joshua Brooks : https://github.com/joshbrooks
+//! author : Onorio De J. Afonso : https://github.com/marobo
+//! author : Sonia Simoes : https://github.com/soniasimoes
+
+import moment from '../moment';
+
+export default moment.defineLocale('tet', {
+    months: 'Janeiru_Fevereiru_Marsu_Abril_Maiu_Juñu_Jullu_Agustu_Setembru_Outubru_Novembru_Dezembru'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Fev_Mar_Abr_Mai_Jun_Jul_Ago_Set_Out_Nov_Dez'.split('_'),
+    weekdays: 'Domingu_Segunda_Tersa_Kuarta_Kinta_Sesta_Sabadu'.split('_'),
+    weekdaysShort: 'Dom_Seg_Ters_Kua_Kint_Sest_Sab'.split('_'),
+    weekdaysMin: 'Do_Seg_Te_Ku_Ki_Ses_Sa'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Ohin iha] LT',
+        nextDay: '[Aban iha] LT',
+        nextWeek: 'dddd [iha] LT',
+        lastDay: '[Horiseik iha] LT',
+        lastWeek: 'dddd [semana kotuk] [iha] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'iha %s',
+        past: '%s liuba',
+        s: 'segundu balun',
+        ss: 'segundu %d',
+        m: 'minutu ida',
+        mm: 'minutu %d',
+        h: 'oras ida',
+        hh: 'oras %d',
+        d: 'loron ida',
+        dd: 'loron %d',
+        M: 'fulan ida',
+        MM: 'fulan %d',
+        y: 'tinan ida',
+        yy: 'tinan %d',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
+    ordinal: function (number) {
+        var b = number % 10,
+            output =
+                ~~((number % 100) / 10) === 1
+                    ? 'th'
+                    : b === 1
+                      ? 'st'
+                      : b === 2
+                        ? 'nd'
+                        : b === 3
+                          ? 'rd'
+                          : 'th';
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/tg.js b/backend/node_modules/moment/src/locale/tg.js
new file mode 100644
index 0000000..60d33c7
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/tg.js
@@ -0,0 +1,117 @@
+//! moment.js locale configuration
+//! locale : Tajik [tg]
+//! author : Orif N. Jr. : https://github.com/orif-jr
+
+import moment from '../moment';
+
+var suffixes = {
+    0: '-ум',
+    1: '-ум',
+    2: '-юм',
+    3: '-юм',
+    4: '-ум',
+    5: '-ум',
+    6: '-ум',
+    7: '-ум',
+    8: '-ум',
+    9: '-ум',
+    10: '-ум',
+    12: '-ум',
+    13: '-ум',
+    20: '-ум',
+    30: '-юм',
+    40: '-ум',
+    50: '-ум',
+    60: '-ум',
+    70: '-ум',
+    80: '-ум',
+    90: '-ум',
+    100: '-ум',
+};
+
+export default moment.defineLocale('tg', {
+    months: {
+        format: 'январи_феврали_марти_апрели_майи_июни_июли_августи_сентябри_октябри_ноябри_декабри'.split(
+            '_'
+        ),
+        standalone:
+            'январ_феврал_март_апрел_май_июн_июл_август_сентябр_октябр_ноябр_декабр'.split(
+                '_'
+            ),
+    },
+    monthsShort: 'янв_фев_мар_апр_май_июн_июл_авг_сен_окт_ноя_дек'.split('_'),
+    weekdays: 'якшанбе_душанбе_сешанбе_чоршанбе_панҷшанбе_ҷумъа_шанбе'.split(
+        '_'
+    ),
+    weekdaysShort: 'яшб_дшб_сшб_чшб_пшб_ҷум_шнб'.split('_'),
+    weekdaysMin: 'яш_дш_сш_чш_пш_ҷм_шб'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Имрӯз соати] LT',
+        nextDay: '[Фардо соати] LT',
+        lastDay: '[Дирӯз соати] LT',
+        nextWeek: 'dddd[и] [ҳафтаи оянда соати] LT',
+        lastWeek: 'dddd[и] [ҳафтаи гузашта соати] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'баъди %s',
+        past: '%s пеш',
+        s: 'якчанд сония',
+        m: 'як дақиқа',
+        mm: '%d дақиқа',
+        h: 'як соат',
+        hh: '%d соат',
+        d: 'як рӯз',
+        dd: '%d рӯз',
+        M: 'як моҳ',
+        MM: '%d моҳ',
+        y: 'як сол',
+        yy: '%d сол',
+    },
+    meridiemParse: /шаб|субҳ|рӯз|бегоҳ/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === 'шаб') {
+            return hour < 4 ? hour : hour + 12;
+        } else if (meridiem === 'субҳ') {
+            return hour;
+        } else if (meridiem === 'рӯз') {
+            return hour >= 11 ? hour : hour + 12;
+        } else if (meridiem === 'бегоҳ') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'шаб';
+        } else if (hour < 11) {
+            return 'субҳ';
+        } else if (hour < 16) {
+            return 'рӯз';
+        } else if (hour < 19) {
+            return 'бегоҳ';
+        } else {
+            return 'шаб';
+        }
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}-(ум|юм)/,
+    ordinal: function (number) {
+        var a = number % 10,
+            b = number >= 100 ? 100 : null;
+        return number + (suffixes[number] || suffixes[a] || suffixes[b]);
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 1th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/th.js b/backend/node_modules/moment/src/locale/th.js
new file mode 100644
index 0000000..b3a5560
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/th.js
@@ -0,0 +1,65 @@
+//! moment.js locale configuration
+//! locale : Thai [th]
+//! author : Kridsada Thanabulpong : https://github.com/sirn
+
+import moment from '../moment';
+
+export default moment.defineLocale('th', {
+    months: 'มกราคม_กุมภาพันธ์_มีนาคม_เมษายน_พฤษภาคม_มิถุนายน_กรกฎาคม_สิงหาคม_กันยายน_ตุลาคม_พฤศจิกายน_ธันวาคม'.split(
+        '_'
+    ),
+    monthsShort:
+        'ม.ค._ก.พ._มี.ค._เม.ย._พ.ค._มิ.ย._ก.ค._ส.ค._ก.ย._ต.ค._พ.ย._ธ.ค.'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'อาทิตย์_จันทร์_อังคาร_พุธ_พฤหัสบดี_ศุกร์_เสาร์'.split('_'),
+    weekdaysShort: 'อาทิตย์_จันทร์_อังคาร_พุธ_พฤหัส_ศุกร์_เสาร์'.split('_'), // yes, three characters difference
+    weekdaysMin: 'อา._จ._อ._พ._พฤ._ศ._ส.'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'H:mm',
+        LTS: 'H:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY เวลา H:mm',
+        LLLL: 'วันddddที่ D MMMM YYYY เวลา H:mm',
+    },
+    meridiemParse: /ก่อนเที่ยง|หลังเที่ยง/,
+    isPM: function (input) {
+        return input === 'หลังเที่ยง';
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'ก่อนเที่ยง';
+        } else {
+            return 'หลังเที่ยง';
+        }
+    },
+    calendar: {
+        sameDay: '[วันนี้ เวลา] LT',
+        nextDay: '[พรุ่งนี้ เวลา] LT',
+        nextWeek: 'dddd[หน้า เวลา] LT',
+        lastDay: '[เมื่อวานนี้ เวลา] LT',
+        lastWeek: '[วัน]dddd[ที่แล้ว เวลา] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'อีก %s',
+        past: '%sที่แล้ว',
+        s: 'ไม่กี่วินาที',
+        ss: '%d วินาที',
+        m: '1 นาที',
+        mm: '%d นาที',
+        h: '1 ชั่วโมง',
+        hh: '%d ชั่วโมง',
+        d: '1 วัน',
+        dd: '%d วัน',
+        w: '1 สัปดาห์',
+        ww: '%d สัปดาห์',
+        M: '1 เดือน',
+        MM: '%d เดือน',
+        y: '1 ปี',
+        yy: '%d ปี',
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/tk.js b/backend/node_modules/moment/src/locale/tk.js
new file mode 100644
index 0000000..b26f99e
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/tk.js
@@ -0,0 +1,91 @@
+//! moment.js locale configuration
+//! locale : Turkmen [tk]
+//! author : Atamyrat Abdyrahmanov : https://github.com/atamyratabdy
+
+import moment from '../moment';
+
+var suffixes = {
+    1: "'inji",
+    5: "'inji",
+    8: "'inji",
+    70: "'inji",
+    80: "'inji",
+    2: "'nji",
+    7: "'nji",
+    20: "'nji",
+    50: "'nji",
+    3: "'ünji",
+    4: "'ünji",
+    100: "'ünji",
+    6: "'njy",
+    9: "'unjy",
+    10: "'unjy",
+    30: "'unjy",
+    60: "'ynjy",
+    90: "'ynjy",
+};
+
+export default moment.defineLocale('tk', {
+    months: 'Ýanwar_Fewral_Mart_Aprel_Maý_Iýun_Iýul_Awgust_Sentýabr_Oktýabr_Noýabr_Dekabr'.split(
+        '_'
+    ),
+    monthsShort: 'Ýan_Few_Mar_Apr_Maý_Iýn_Iýl_Awg_Sen_Okt_Noý_Dek'.split('_'),
+    weekdays: 'Ýekşenbe_Duşenbe_Sişenbe_Çarşenbe_Penşenbe_Anna_Şenbe'.split(
+        '_'
+    ),
+    weekdaysShort: 'Ýek_Duş_Siş_Çar_Pen_Ann_Şen'.split('_'),
+    weekdaysMin: 'Ýk_Dş_Sş_Çr_Pn_An_Şn'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[bugün sagat] LT',
+        nextDay: '[ertir sagat] LT',
+        nextWeek: '[indiki] dddd [sagat] LT',
+        lastDay: '[düýn] LT',
+        lastWeek: '[geçen] dddd [sagat] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s soň',
+        past: '%s öň',
+        s: 'birnäçe sekunt',
+        m: 'bir minut',
+        mm: '%d minut',
+        h: 'bir sagat',
+        hh: '%d sagat',
+        d: 'bir gün',
+        dd: '%d gün',
+        M: 'bir aý',
+        MM: '%d aý',
+        y: 'bir ýyl',
+        yy: '%d ýyl',
+    },
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'd':
+            case 'D':
+            case 'Do':
+            case 'DD':
+                return number;
+            default:
+                if (number === 0) {
+                    // special case for zero
+                    return number + "'unjy";
+                }
+                var a = number % 10,
+                    b = (number % 100) - a,
+                    c = number >= 100 ? 100 : null;
+                return number + (suffixes[a] || suffixes[b] || suffixes[c]);
+        }
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/tl-ph.js b/backend/node_modules/moment/src/locale/tl-ph.js
new file mode 100644
index 0000000..581d74a
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/tl-ph.js
@@ -0,0 +1,57 @@
+//! moment.js locale configuration
+//! locale : Tagalog (Philippines) [tl-ph]
+//! author : Dan Hagman : https://github.com/hagmandan
+
+import moment from '../moment';
+
+export default moment.defineLocale('tl-ph', {
+    months: 'Enero_Pebrero_Marso_Abril_Mayo_Hunyo_Hulyo_Agosto_Setyembre_Oktubre_Nobyembre_Disyembre'.split(
+        '_'
+    ),
+    monthsShort: 'Ene_Peb_Mar_Abr_May_Hun_Hul_Ago_Set_Okt_Nob_Dis'.split('_'),
+    weekdays: 'Linggo_Lunes_Martes_Miyerkules_Huwebes_Biyernes_Sabado'.split(
+        '_'
+    ),
+    weekdaysShort: 'Lin_Lun_Mar_Miy_Huw_Biy_Sab'.split('_'),
+    weekdaysMin: 'Li_Lu_Ma_Mi_Hu_Bi_Sab'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'MM/D/YYYY',
+        LL: 'MMMM D, YYYY',
+        LLL: 'MMMM D, YYYY HH:mm',
+        LLLL: 'dddd, MMMM DD, YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: 'LT [ngayong araw]',
+        nextDay: '[Bukas ng] LT',
+        nextWeek: 'LT [sa susunod na] dddd',
+        lastDay: 'LT [kahapon]',
+        lastWeek: 'LT [noong nakaraang] dddd',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'sa loob ng %s',
+        past: '%s ang nakalipas',
+        s: 'ilang segundo',
+        ss: '%d segundo',
+        m: 'isang minuto',
+        mm: '%d minuto',
+        h: 'isang oras',
+        hh: '%d oras',
+        d: 'isang araw',
+        dd: '%d araw',
+        M: 'isang buwan',
+        MM: '%d buwan',
+        y: 'isang taon',
+        yy: '%d taon',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}/,
+    ordinal: function (number) {
+        return number;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/tlh.js b/backend/node_modules/moment/src/locale/tlh.js
new file mode 100644
index 0000000..ccc5d29
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/tlh.js
@@ -0,0 +1,124 @@
+//! moment.js locale configuration
+//! locale : Klingon [tlh]
+//! author : Dominika Kruk : https://github.com/amaranthrose
+
+import moment from '../moment';
+
+var numbersNouns = 'pagh_wa’_cha’_wej_loS_vagh_jav_Soch_chorgh_Hut'.split('_');
+
+function translateFuture(output) {
+    var time = output;
+    time =
+        output.indexOf('jaj') !== -1
+            ? time.slice(0, -3) + 'leS'
+            : output.indexOf('jar') !== -1
+              ? time.slice(0, -3) + 'waQ'
+              : output.indexOf('DIS') !== -1
+                ? time.slice(0, -3) + 'nem'
+                : time + ' pIq';
+    return time;
+}
+
+function translatePast(output) {
+    var time = output;
+    time =
+        output.indexOf('jaj') !== -1
+            ? time.slice(0, -3) + 'Hu’'
+            : output.indexOf('jar') !== -1
+              ? time.slice(0, -3) + 'wen'
+              : output.indexOf('DIS') !== -1
+                ? time.slice(0, -3) + 'ben'
+                : time + ' ret';
+    return time;
+}
+
+function translate(number, withoutSuffix, string, isFuture) {
+    var numberNoun = numberAsNoun(number);
+    switch (string) {
+        case 'ss':
+            return numberNoun + ' lup';
+        case 'mm':
+            return numberNoun + ' tup';
+        case 'hh':
+            return numberNoun + ' rep';
+        case 'dd':
+            return numberNoun + ' jaj';
+        case 'MM':
+            return numberNoun + ' jar';
+        case 'yy':
+            return numberNoun + ' DIS';
+    }
+}
+
+function numberAsNoun(number) {
+    var hundred = Math.floor((number % 1000) / 100),
+        ten = Math.floor((number % 100) / 10),
+        one = number % 10,
+        word = '';
+    if (hundred > 0) {
+        word += numbersNouns[hundred] + 'vatlh';
+    }
+    if (ten > 0) {
+        word += (word !== '' ? ' ' : '') + numbersNouns[ten] + 'maH';
+    }
+    if (one > 0) {
+        word += (word !== '' ? ' ' : '') + numbersNouns[one];
+    }
+    return word === '' ? 'pagh' : word;
+}
+
+export default moment.defineLocale('tlh', {
+    months: 'tera’ jar wa’_tera’ jar cha’_tera’ jar wej_tera’ jar loS_tera’ jar vagh_tera’ jar jav_tera’ jar Soch_tera’ jar chorgh_tera’ jar Hut_tera’ jar wa’maH_tera’ jar wa’maH wa’_tera’ jar wa’maH cha’'.split(
+        '_'
+    ),
+    monthsShort:
+        'jar wa’_jar cha’_jar wej_jar loS_jar vagh_jar jav_jar Soch_jar chorgh_jar Hut_jar wa’maH_jar wa’maH wa’_jar wa’maH cha’'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'lojmItjaj_DaSjaj_povjaj_ghItlhjaj_loghjaj_buqjaj_ghInjaj'.split(
+        '_'
+    ),
+    weekdaysShort:
+        'lojmItjaj_DaSjaj_povjaj_ghItlhjaj_loghjaj_buqjaj_ghInjaj'.split('_'),
+    weekdaysMin:
+        'lojmItjaj_DaSjaj_povjaj_ghItlhjaj_loghjaj_buqjaj_ghInjaj'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[DaHjaj] LT',
+        nextDay: '[wa’leS] LT',
+        nextWeek: 'LLL',
+        lastDay: '[wa’Hu’] LT',
+        lastWeek: 'LLL',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: translateFuture,
+        past: translatePast,
+        s: 'puS lup',
+        ss: translate,
+        m: 'wa’ tup',
+        mm: translate,
+        h: 'wa’ rep',
+        hh: translate,
+        d: 'wa’ jaj',
+        dd: translate,
+        M: 'wa’ jar',
+        MM: translate,
+        y: 'wa’ DIS',
+        yy: translate,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/tr.js b/backend/node_modules/moment/src/locale/tr.js
new file mode 100644
index 0000000..c5abbdc
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/tr.js
@@ -0,0 +1,106 @@
+//! moment.js locale configuration
+//! locale : Turkish [tr]
+//! authors : Erhan Gundogan : https://github.com/erhangundogan,
+//!           Burak Yiğit Kaya: https://github.com/BYK
+
+import moment from '../moment';
+
+var suffixes = {
+    1: "'inci",
+    5: "'inci",
+    8: "'inci",
+    70: "'inci",
+    80: "'inci",
+    2: "'nci",
+    7: "'nci",
+    20: "'nci",
+    50: "'nci",
+    3: "'üncü",
+    4: "'üncü",
+    100: "'üncü",
+    6: "'ncı",
+    9: "'uncu",
+    10: "'uncu",
+    30: "'uncu",
+    60: "'ıncı",
+    90: "'ıncı",
+};
+
+export default moment.defineLocale('tr', {
+    months: 'Ocak_Şubat_Mart_Nisan_Mayıs_Haziran_Temmuz_Ağustos_Eylül_Ekim_Kasım_Aralık'.split(
+        '_'
+    ),
+    monthsShort: 'Oca_Şub_Mar_Nis_May_Haz_Tem_Ağu_Eyl_Eki_Kas_Ara'.split('_'),
+    weekdays: 'Pazar_Pazartesi_Salı_Çarşamba_Perşembe_Cuma_Cumartesi'.split(
+        '_'
+    ),
+    weekdaysShort: 'Paz_Pzt_Sal_Çar_Per_Cum_Cmt'.split('_'),
+    weekdaysMin: 'Pz_Pt_Sa_Ça_Pe_Cu_Ct'.split('_'),
+    meridiem: function (hours, minutes, isLower) {
+        if (hours < 12) {
+            return isLower ? 'öö' : 'ÖÖ';
+        } else {
+            return isLower ? 'ös' : 'ÖS';
+        }
+    },
+    meridiemParse: /öö|ÖÖ|ös|ÖS/,
+    isPM: function (input) {
+        return input === 'ös' || input === 'ÖS';
+    },
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[bugün saat] LT',
+        nextDay: '[yarın saat] LT',
+        nextWeek: '[gelecek] dddd [saat] LT',
+        lastDay: '[dün] LT',
+        lastWeek: '[geçen] dddd [saat] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s sonra',
+        past: '%s önce',
+        s: 'birkaç saniye',
+        ss: '%d saniye',
+        m: 'bir dakika',
+        mm: '%d dakika',
+        h: 'bir saat',
+        hh: '%d saat',
+        d: 'bir gün',
+        dd: '%d gün',
+        w: 'bir hafta',
+        ww: '%d hafta',
+        M: 'bir ay',
+        MM: '%d ay',
+        y: 'bir yıl',
+        yy: '%d yıl',
+    },
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'd':
+            case 'D':
+            case 'Do':
+            case 'DD':
+                return number;
+            default:
+                if (number === 0) {
+                    // special case for zero
+                    return number + "'ıncı";
+                }
+                var a = number % 10,
+                    b = (number % 100) - a,
+                    c = number >= 100 ? 100 : null;
+                return number + (suffixes[a] || suffixes[b] || suffixes[c]);
+        }
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/tzl.js b/backend/node_modules/moment/src/locale/tzl.js
new file mode 100644
index 0000000..5447082
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/tzl.js
@@ -0,0 +1,89 @@
+//! moment.js locale configuration
+//! locale : Talossan [tzl]
+//! author : Robin van der Vliet : https://github.com/robin0van0der0v
+//! author : Iustì Canun
+
+import moment from '../moment';
+
+// After the year there should be a slash and the amount of years since December 26, 1979 in Roman numerals.
+// This is currently too difficult (maybe even impossible) to add.
+export default moment.defineLocale('tzl', {
+    months: 'Januar_Fevraglh_Març_Avrïu_Mai_Gün_Julia_Guscht_Setemvar_Listopäts_Noemvar_Zecemvar'.split(
+        '_'
+    ),
+    monthsShort: 'Jan_Fev_Mar_Avr_Mai_Gün_Jul_Gus_Set_Lis_Noe_Zec'.split('_'),
+    weekdays: 'Súladi_Lúneçi_Maitzi_Márcuri_Xhúadi_Viénerçi_Sáturi'.split('_'),
+    weekdaysShort: 'Súl_Lún_Mai_Már_Xhú_Vié_Sát'.split('_'),
+    weekdaysMin: 'Sú_Lú_Ma_Má_Xh_Vi_Sá'.split('_'),
+    longDateFormat: {
+        LT: 'HH.mm',
+        LTS: 'HH.mm.ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D. MMMM [dallas] YYYY',
+        LLL: 'D. MMMM [dallas] YYYY HH.mm',
+        LLLL: 'dddd, [li] D. MMMM [dallas] YYYY HH.mm',
+    },
+    meridiemParse: /d\'o|d\'a/i,
+    isPM: function (input) {
+        return "d'o" === input.toLowerCase();
+    },
+    meridiem: function (hours, minutes, isLower) {
+        if (hours > 11) {
+            return isLower ? "d'o" : "D'O";
+        } else {
+            return isLower ? "d'a" : "D'A";
+        }
+    },
+    calendar: {
+        sameDay: '[oxhi à] LT',
+        nextDay: '[demà à] LT',
+        nextWeek: 'dddd [à] LT',
+        lastDay: '[ieiri à] LT',
+        lastWeek: '[sür el] dddd [lasteu à] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'osprei %s',
+        past: 'ja%s',
+        s: processRelativeTime,
+        ss: processRelativeTime,
+        m: processRelativeTime,
+        mm: processRelativeTime,
+        h: processRelativeTime,
+        hh: processRelativeTime,
+        d: processRelativeTime,
+        dd: processRelativeTime,
+        M: processRelativeTime,
+        MM: processRelativeTime,
+        y: processRelativeTime,
+        yy: processRelativeTime,
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}\./,
+    ordinal: '%d.',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
+
+function processRelativeTime(number, withoutSuffix, key, isFuture) {
+    var format = {
+        s: ['viensas secunds', "'iensas secunds"],
+        ss: [number + ' secunds', '' + number + ' secunds'],
+        m: ["'n míut", "'iens míut"],
+        mm: [number + ' míuts', '' + number + ' míuts'],
+        h: ["'n þora", "'iensa þora"],
+        hh: [number + ' þoras', '' + number + ' þoras'],
+        d: ["'n ziua", "'iensa ziua"],
+        dd: [number + ' ziuas', '' + number + ' ziuas'],
+        M: ["'n mes", "'iens mes"],
+        MM: [number + ' mesen', '' + number + ' mesen'],
+        y: ["'n ar", "'iens ar"],
+        yy: [number + ' ars', '' + number + ' ars'],
+    };
+    return isFuture
+        ? format[key][0]
+        : withoutSuffix
+          ? format[key][0]
+          : format[key][1];
+}
diff --git a/backend/node_modules/moment/src/locale/tzm-latn.js b/backend/node_modules/moment/src/locale/tzm-latn.js
new file mode 100644
index 0000000..6a427d8
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/tzm-latn.js
@@ -0,0 +1,54 @@
+//! moment.js locale configuration
+//! locale : Central Atlas Tamazight Latin [tzm-latn]
+//! author : Abdel Said : https://github.com/abdelsaid
+
+import moment from '../moment';
+
+export default moment.defineLocale('tzm-latn', {
+    months: 'innayr_brˤayrˤ_marˤsˤ_ibrir_mayyw_ywnyw_ywlywz_ɣwšt_šwtanbir_ktˤwbrˤ_nwwanbir_dwjnbir'.split(
+        '_'
+    ),
+    monthsShort:
+        'innayr_brˤayrˤ_marˤsˤ_ibrir_mayyw_ywnyw_ywlywz_ɣwšt_šwtanbir_ktˤwbrˤ_nwwanbir_dwjnbir'.split(
+            '_'
+        ),
+    weekdays: 'asamas_aynas_asinas_akras_akwas_asimwas_asiḍyas'.split('_'),
+    weekdaysShort: 'asamas_aynas_asinas_akras_akwas_asimwas_asiḍyas'.split('_'),
+    weekdaysMin: 'asamas_aynas_asinas_akras_akwas_asimwas_asiḍyas'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[asdkh g] LT',
+        nextDay: '[aska g] LT',
+        nextWeek: 'dddd [g] LT',
+        lastDay: '[assant g] LT',
+        lastWeek: 'dddd [g] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'dadkh s yan %s',
+        past: 'yan %s',
+        s: 'imik',
+        ss: '%d imik',
+        m: 'minuḍ',
+        mm: '%d minuḍ',
+        h: 'saɛa',
+        hh: '%d tassaɛin',
+        d: 'ass',
+        dd: '%d ossan',
+        M: 'ayowr',
+        MM: '%d iyyirn',
+        y: 'asgas',
+        yy: '%d isgasn',
+    },
+    week: {
+        dow: 6, // Saturday is the first day of the week.
+        doy: 12, // The week that contains Jan 12th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/tzm.js b/backend/node_modules/moment/src/locale/tzm.js
new file mode 100644
index 0000000..1e5d597
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/tzm.js
@@ -0,0 +1,54 @@
+//! moment.js locale configuration
+//! locale : Central Atlas Tamazight [tzm]
+//! author : Abdel Said : https://github.com/abdelsaid
+
+import moment from '../moment';
+
+export default moment.defineLocale('tzm', {
+    months: 'ⵉⵏⵏⴰⵢⵔ_ⴱⵕⴰⵢⵕ_ⵎⴰⵕⵚ_ⵉⴱⵔⵉⵔ_ⵎⴰⵢⵢⵓ_ⵢⵓⵏⵢⵓ_ⵢⵓⵍⵢⵓⵣ_ⵖⵓⵛⵜ_ⵛⵓⵜⴰⵏⴱⵉⵔ_ⴽⵟⵓⴱⵕ_ⵏⵓⵡⴰⵏⴱⵉⵔ_ⴷⵓⵊⵏⴱⵉⵔ'.split(
+        '_'
+    ),
+    monthsShort:
+        'ⵉⵏⵏⴰⵢⵔ_ⴱⵕⴰⵢⵕ_ⵎⴰⵕⵚ_ⵉⴱⵔⵉⵔ_ⵎⴰⵢⵢⵓ_ⵢⵓⵏⵢⵓ_ⵢⵓⵍⵢⵓⵣ_ⵖⵓⵛⵜ_ⵛⵓⵜⴰⵏⴱⵉⵔ_ⴽⵟⵓⴱⵕ_ⵏⵓⵡⴰⵏⴱⵉⵔ_ⴷⵓⵊⵏⴱⵉⵔ'.split(
+            '_'
+        ),
+    weekdays: 'ⴰⵙⴰⵎⴰⵙ_ⴰⵢⵏⴰⵙ_ⴰⵙⵉⵏⴰⵙ_ⴰⴽⵔⴰⵙ_ⴰⴽⵡⴰⵙ_ⴰⵙⵉⵎⵡⴰⵙ_ⴰⵙⵉⴹⵢⴰⵙ'.split('_'),
+    weekdaysShort: 'ⴰⵙⴰⵎⴰⵙ_ⴰⵢⵏⴰⵙ_ⴰⵙⵉⵏⴰⵙ_ⴰⴽⵔⴰⵙ_ⴰⴽⵡⴰⵙ_ⴰⵙⵉⵎⵡⴰⵙ_ⴰⵙⵉⴹⵢⴰⵙ'.split('_'),
+    weekdaysMin: 'ⴰⵙⴰⵎⴰⵙ_ⴰⵢⵏⴰⵙ_ⴰⵙⵉⵏⴰⵙ_ⴰⴽⵔⴰⵙ_ⴰⴽⵡⴰⵙ_ⴰⵙⵉⵎⵡⴰⵙ_ⴰⵙⵉⴹⵢⴰⵙ'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[ⴰⵙⴷⵅ ⴴ] LT',
+        nextDay: '[ⴰⵙⴽⴰ ⴴ] LT',
+        nextWeek: 'dddd [ⴴ] LT',
+        lastDay: '[ⴰⵚⴰⵏⵜ ⴴ] LT',
+        lastWeek: 'dddd [ⴴ] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'ⴷⴰⴷⵅ ⵙ ⵢⴰⵏ %s',
+        past: 'ⵢⴰⵏ %s',
+        s: 'ⵉⵎⵉⴽ',
+        ss: '%d ⵉⵎⵉⴽ',
+        m: 'ⵎⵉⵏⵓⴺ',
+        mm: '%d ⵎⵉⵏⵓⴺ',
+        h: 'ⵙⴰⵄⴰ',
+        hh: '%d ⵜⴰⵙⵙⴰⵄⵉⵏ',
+        d: 'ⴰⵙⵙ',
+        dd: '%d oⵙⵙⴰⵏ',
+        M: 'ⴰⵢoⵓⵔ',
+        MM: '%d ⵉⵢⵢⵉⵔⵏ',
+        y: 'ⴰⵙⴳⴰⵙ',
+        yy: '%d ⵉⵙⴳⴰⵙⵏ',
+    },
+    week: {
+        dow: 6, // Saturday is the first day of the week.
+        doy: 12, // The week that contains Jan 12th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ug-cn.js b/backend/node_modules/moment/src/locale/ug-cn.js
new file mode 100644
index 0000000..ad6fa94
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ug-cn.js
@@ -0,0 +1,111 @@
+//! moment.js locale configuration
+//! locale : Uyghur (China) [ug-cn]
+//! author: boyaq : https://github.com/boyaq
+
+import moment from '../moment';
+
+export default moment.defineLocale('ug-cn', {
+    months: 'يانۋار_فېۋرال_مارت_ئاپرېل_ماي_ئىيۇن_ئىيۇل_ئاۋغۇست_سېنتەبىر_ئۆكتەبىر_نويابىر_دېكابىر'.split(
+        '_'
+    ),
+    monthsShort:
+        'يانۋار_فېۋرال_مارت_ئاپرېل_ماي_ئىيۇن_ئىيۇل_ئاۋغۇست_سېنتەبىر_ئۆكتەبىر_نويابىر_دېكابىر'.split(
+            '_'
+        ),
+    weekdays: 'يەكشەنبە_دۈشەنبە_سەيشەنبە_چارشەنبە_پەيشەنبە_جۈمە_شەنبە'.split(
+        '_'
+    ),
+    weekdaysShort: 'يە_دۈ_سە_چا_پە_جۈ_شە'.split('_'),
+    weekdaysMin: 'يە_دۈ_سە_چا_پە_جۈ_شە'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'YYYY-MM-DD',
+        LL: 'YYYY-يىلىM-ئاينىڭD-كۈنى',
+        LLL: 'YYYY-يىلىM-ئاينىڭD-كۈنى، HH:mm',
+        LLLL: 'dddd، YYYY-يىلىM-ئاينىڭD-كۈنى، HH:mm',
+    },
+    meridiemParse: /يېرىم كېچە|سەھەر|چۈشتىن بۇرۇن|چۈش|چۈشتىن كېيىن|كەچ/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (
+            meridiem === 'يېرىم كېچە' ||
+            meridiem === 'سەھەر' ||
+            meridiem === 'چۈشتىن بۇرۇن'
+        ) {
+            return hour;
+        } else if (meridiem === 'چۈشتىن كېيىن' || meridiem === 'كەچ') {
+            return hour + 12;
+        } else {
+            return hour >= 11 ? hour : hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        var hm = hour * 100 + minute;
+        if (hm < 600) {
+            return 'يېرىم كېچە';
+        } else if (hm < 900) {
+            return 'سەھەر';
+        } else if (hm < 1130) {
+            return 'چۈشتىن بۇرۇن';
+        } else if (hm < 1230) {
+            return 'چۈش';
+        } else if (hm < 1800) {
+            return 'چۈشتىن كېيىن';
+        } else {
+            return 'كەچ';
+        }
+    },
+    calendar: {
+        sameDay: '[بۈگۈن سائەت] LT',
+        nextDay: '[ئەتە سائەت] LT',
+        nextWeek: '[كېلەركى] dddd [سائەت] LT',
+        lastDay: '[تۆنۈگۈن] LT',
+        lastWeek: '[ئالدىنقى] dddd [سائەت] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s كېيىن',
+        past: '%s بۇرۇن',
+        s: 'نەچچە سېكونت',
+        ss: '%d سېكونت',
+        m: 'بىر مىنۇت',
+        mm: '%d مىنۇت',
+        h: 'بىر سائەت',
+        hh: '%d سائەت',
+        d: 'بىر كۈن',
+        dd: '%d كۈن',
+        M: 'بىر ئاي',
+        MM: '%d ئاي',
+        y: 'بىر يىل',
+        yy: '%d يىل',
+    },
+
+    dayOfMonthOrdinalParse: /\d{1,2}(-كۈنى|-ئاي|-ھەپتە)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'd':
+            case 'D':
+            case 'DDD':
+                return number + '-كۈنى';
+            case 'w':
+            case 'W':
+                return number + '-ھەپتە';
+            default:
+                return number;
+        }
+    },
+    preparse: function (string) {
+        return string.replace(/،/g, ',');
+    },
+    postformat: function (string) {
+        return string.replace(/,/g, '،');
+    },
+    week: {
+        // GB/T 7408-1994《数据元和交换格式·信息交换·日期和时间表示法》与ISO 8601:1988等效
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 1st is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/uk.js b/backend/node_modules/moment/src/locale/uk.js
new file mode 100644
index 0000000..670ffcc
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/uk.js
@@ -0,0 +1,167 @@
+//! moment.js locale configuration
+//! locale : Ukrainian [uk]
+//! author : zemlanin : https://github.com/zemlanin
+//! Author : Menelion Elensúle : https://github.com/Oire
+
+import moment from '../moment';
+
+function plural(word, num) {
+    var forms = word.split('_');
+    return num % 10 === 1 && num % 100 !== 11
+        ? forms[0]
+        : num % 10 >= 2 && num % 10 <= 4 && (num % 100 < 10 || num % 100 >= 20)
+          ? forms[1]
+          : forms[2];
+}
+function relativeTimeWithPlural(number, withoutSuffix, key) {
+    var format = {
+        ss: withoutSuffix ? 'секунда_секунди_секунд' : 'секунду_секунди_секунд',
+        mm: withoutSuffix ? 'хвилина_хвилини_хвилин' : 'хвилину_хвилини_хвилин',
+        hh: withoutSuffix ? 'година_години_годин' : 'годину_години_годин',
+        dd: 'день_дні_днів',
+        MM: 'місяць_місяці_місяців',
+        yy: 'рік_роки_років',
+    };
+    if (key === 'm') {
+        return withoutSuffix ? 'хвилина' : 'хвилину';
+    } else if (key === 'h') {
+        return withoutSuffix ? 'година' : 'годину';
+    } else {
+        return number + ' ' + plural(format[key], +number);
+    }
+}
+function weekdaysCaseReplace(m, format) {
+    var weekdays = {
+            nominative:
+                'неділя_понеділок_вівторок_середа_четвер_п’ятниця_субота'.split(
+                    '_'
+                ),
+            accusative:
+                'неділю_понеділок_вівторок_середу_четвер_п’ятницю_суботу'.split(
+                    '_'
+                ),
+            genitive:
+                'неділі_понеділка_вівторка_середи_четверга_п’ятниці_суботи'.split(
+                    '_'
+                ),
+        },
+        nounCase;
+
+    if (m === true) {
+        return weekdays['nominative']
+            .slice(1, 7)
+            .concat(weekdays['nominative'].slice(0, 1));
+    }
+    if (!m) {
+        return weekdays['nominative'];
+    }
+
+    nounCase = /(\[[ВвУу]\]) ?dddd/.test(format)
+        ? 'accusative'
+        : /\[?(?:минулої|наступної)? ?\] ?dddd/.test(format)
+          ? 'genitive'
+          : 'nominative';
+    return weekdays[nounCase][m.day()];
+}
+function processHoursFunction(str) {
+    return function () {
+        return str + 'о' + (this.hours() === 11 ? 'б' : '') + '] LT';
+    };
+}
+
+export default moment.defineLocale('uk', {
+    months: {
+        format: 'січня_лютого_березня_квітня_травня_червня_липня_серпня_вересня_жовтня_листопада_грудня'.split(
+            '_'
+        ),
+        standalone:
+            'січень_лютий_березень_квітень_травень_червень_липень_серпень_вересень_жовтень_листопад_грудень'.split(
+                '_'
+            ),
+    },
+    monthsShort: 'січ_лют_бер_квіт_трав_черв_лип_серп_вер_жовт_лист_груд'.split(
+        '_'
+    ),
+    weekdays: weekdaysCaseReplace,
+    weekdaysShort: 'нд_пн_вт_ср_чт_пт_сб'.split('_'),
+    weekdaysMin: 'нд_пн_вт_ср_чт_пт_сб'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD.MM.YYYY',
+        LL: 'D MMMM YYYY р.',
+        LLL: 'D MMMM YYYY р., HH:mm',
+        LLLL: 'dddd, D MMMM YYYY р., HH:mm',
+    },
+    calendar: {
+        sameDay: processHoursFunction('[Сьогодні '),
+        nextDay: processHoursFunction('[Завтра '),
+        lastDay: processHoursFunction('[Вчора '),
+        nextWeek: processHoursFunction('[У] dddd ['),
+        lastWeek: function () {
+            switch (this.day()) {
+                case 0:
+                case 3:
+                case 5:
+                case 6:
+                    return processHoursFunction('[Минулої] dddd [').call(this);
+                case 1:
+                case 2:
+                case 4:
+                    return processHoursFunction('[Минулого] dddd [').call(this);
+            }
+        },
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'за %s',
+        past: '%s тому',
+        s: 'декілька секунд',
+        ss: relativeTimeWithPlural,
+        m: relativeTimeWithPlural,
+        mm: relativeTimeWithPlural,
+        h: 'годину',
+        hh: relativeTimeWithPlural,
+        d: 'день',
+        dd: relativeTimeWithPlural,
+        M: 'місяць',
+        MM: relativeTimeWithPlural,
+        y: 'рік',
+        yy: relativeTimeWithPlural,
+    },
+    // M. E.: those two are virtually unused but a user might want to implement them for his/her website for some reason
+    meridiemParse: /ночі|ранку|дня|вечора/,
+    isPM: function (input) {
+        return /^(дня|вечора)$/.test(input);
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 4) {
+            return 'ночі';
+        } else if (hour < 12) {
+            return 'ранку';
+        } else if (hour < 17) {
+            return 'дня';
+        } else {
+            return 'вечора';
+        }
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}-(й|го)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'M':
+            case 'd':
+            case 'DDD':
+            case 'w':
+            case 'W':
+                return number + '-й';
+            case 'D':
+                return number + '-го';
+            default:
+                return number;
+        }
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/ur.js b/backend/node_modules/moment/src/locale/ur.js
new file mode 100644
index 0000000..ca5e252
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/ur.js
@@ -0,0 +1,82 @@
+//! moment.js locale configuration
+//! locale : Urdu [ur]
+//! author : Sawood Alam : https://github.com/ibnesayeed
+//! author : Zack : https://github.com/ZackVision
+
+import moment from '../moment';
+
+var months = [
+        'جنوری',
+        'فروری',
+        'مارچ',
+        'اپریل',
+        'مئی',
+        'جون',
+        'جولائی',
+        'اگست',
+        'ستمبر',
+        'اکتوبر',
+        'نومبر',
+        'دسمبر',
+    ],
+    days = ['اتوار', 'پیر', 'منگل', 'بدھ', 'جمعرات', 'جمعہ', 'ہفتہ'];
+
+export default moment.defineLocale('ur', {
+    months: months,
+    monthsShort: months,
+    weekdays: days,
+    weekdaysShort: days,
+    weekdaysMin: days,
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd، D MMMM YYYY HH:mm',
+    },
+    meridiemParse: /صبح|شام/,
+    isPM: function (input) {
+        return 'شام' === input;
+    },
+    meridiem: function (hour, minute, isLower) {
+        if (hour < 12) {
+            return 'صبح';
+        }
+        return 'شام';
+    },
+    calendar: {
+        sameDay: '[آج بوقت] LT',
+        nextDay: '[کل بوقت] LT',
+        nextWeek: 'dddd [بوقت] LT',
+        lastDay: '[گذشتہ روز بوقت] LT',
+        lastWeek: '[گذشتہ] dddd [بوقت] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s بعد',
+        past: '%s قبل',
+        s: 'چند سیکنڈ',
+        ss: '%d سیکنڈ',
+        m: 'ایک منٹ',
+        mm: '%d منٹ',
+        h: 'ایک گھنٹہ',
+        hh: '%d گھنٹے',
+        d: 'ایک دن',
+        dd: '%d دن',
+        M: 'ایک ماہ',
+        MM: '%d ماہ',
+        y: 'ایک سال',
+        yy: '%d سال',
+    },
+    preparse: function (string) {
+        return string.replace(/،/g, ',');
+    },
+    postformat: function (string) {
+        return string.replace(/,/g, '،');
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/uz-latn.js b/backend/node_modules/moment/src/locale/uz-latn.js
new file mode 100644
index 0000000..a2d577e
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/uz-latn.js
@@ -0,0 +1,54 @@
+//! moment.js locale configuration
+//! locale : Uzbek Latin [uz-latn]
+//! author : Rasulbek Mirzayev : github.com/Rasulbeeek
+
+import moment from '../moment';
+
+export default moment.defineLocale('uz-latn', {
+    months: 'Yanvar_Fevral_Mart_Aprel_May_Iyun_Iyul_Avgust_Sentabr_Oktabr_Noyabr_Dekabr'.split(
+        '_'
+    ),
+    monthsShort: 'Yan_Fev_Mar_Apr_May_Iyun_Iyul_Avg_Sen_Okt_Noy_Dek'.split('_'),
+    weekdays:
+        'Yakshanba_Dushanba_Seshanba_Chorshanba_Payshanba_Juma_Shanba'.split(
+            '_'
+        ),
+    weekdaysShort: 'Yak_Dush_Sesh_Chor_Pay_Jum_Shan'.split('_'),
+    weekdaysMin: 'Ya_Du_Se_Cho_Pa_Ju_Sha'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'D MMMM YYYY, dddd HH:mm',
+    },
+    calendar: {
+        sameDay: '[Bugun soat] LT [da]',
+        nextDay: '[Ertaga] LT [da]',
+        nextWeek: 'dddd [kuni soat] LT [da]',
+        lastDay: '[Kecha soat] LT [da]',
+        lastWeek: "[O'tgan] dddd [kuni soat] LT [da]",
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'Yaqin %s ichida',
+        past: 'Bir necha %s oldin',
+        s: 'soniya',
+        ss: '%d soniya',
+        m: 'bir daqiqa',
+        mm: '%d daqiqa',
+        h: 'bir soat',
+        hh: '%d soat',
+        d: 'bir kun',
+        dd: '%d kun',
+        M: 'bir oy',
+        MM: '%d oy',
+        y: 'bir yil',
+        yy: '%d yil',
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 7th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/uz.js b/backend/node_modules/moment/src/locale/uz.js
new file mode 100644
index 0000000..03914dd
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/uz.js
@@ -0,0 +1,51 @@
+//! moment.js locale configuration
+//! locale : Uzbek [uz]
+//! author : Sardor Muminov : https://github.com/muminoff
+
+import moment from '../moment';
+
+export default moment.defineLocale('uz', {
+    months: 'январ_феврал_март_апрел_май_июн_июл_август_сентябр_октябр_ноябр_декабр'.split(
+        '_'
+    ),
+    monthsShort: 'янв_фев_мар_апр_май_июн_июл_авг_сен_окт_ноя_дек'.split('_'),
+    weekdays: 'Якшанба_Душанба_Сешанба_Чоршанба_Пайшанба_Жума_Шанба'.split('_'),
+    weekdaysShort: 'Якш_Душ_Сеш_Чор_Пай_Жум_Шан'.split('_'),
+    weekdaysMin: 'Як_Ду_Се_Чо_Па_Жу_Ша'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'D MMMM YYYY, dddd HH:mm',
+    },
+    calendar: {
+        sameDay: '[Бугун соат] LT [да]',
+        nextDay: '[Эртага] LT [да]',
+        nextWeek: 'dddd [куни соат] LT [да]',
+        lastDay: '[Кеча соат] LT [да]',
+        lastWeek: '[Утган] dddd [куни соат] LT [да]',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'Якин %s ичида',
+        past: 'Бир неча %s олдин',
+        s: 'фурсат',
+        ss: '%d фурсат',
+        m: 'бир дакика',
+        mm: '%d дакика',
+        h: 'бир соат',
+        hh: '%d соат',
+        d: 'бир кун',
+        dd: '%d кун',
+        M: 'бир ой',
+        MM: '%d ой',
+        y: 'бир йил',
+        yy: '%d йил',
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 7, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/vi.js b/backend/node_modules/moment/src/locale/vi.js
new file mode 100644
index 0000000..2b11cf6
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/vi.js
@@ -0,0 +1,80 @@
+//! moment.js locale configuration
+//! locale : Vietnamese [vi]
+//! author : Bang Nguyen : https://github.com/bangnk
+//! author : Chien Kira : https://github.com/chienkira
+
+import moment from '../moment';
+
+export default moment.defineLocale('vi', {
+    months: 'tháng 1_tháng 2_tháng 3_tháng 4_tháng 5_tháng 6_tháng 7_tháng 8_tháng 9_tháng 10_tháng 11_tháng 12'.split(
+        '_'
+    ),
+    monthsShort:
+        'Thg 01_Thg 02_Thg 03_Thg 04_Thg 05_Thg 06_Thg 07_Thg 08_Thg 09_Thg 10_Thg 11_Thg 12'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays: 'chủ nhật_thứ hai_thứ ba_thứ tư_thứ năm_thứ sáu_thứ bảy'.split(
+        '_'
+    ),
+    weekdaysShort: 'CN_T2_T3_T4_T5_T6_T7'.split('_'),
+    weekdaysMin: 'CN_T2_T3_T4_T5_T6_T7'.split('_'),
+    weekdaysParseExact: true,
+    meridiemParse: /sa|ch/i,
+    isPM: function (input) {
+        return /^ch$/i.test(input);
+    },
+    meridiem: function (hours, minutes, isLower) {
+        if (hours < 12) {
+            return isLower ? 'sa' : 'SA';
+        } else {
+            return isLower ? 'ch' : 'CH';
+        }
+    },
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM [năm] YYYY',
+        LLL: 'D MMMM [năm] YYYY HH:mm',
+        LLLL: 'dddd, D MMMM [năm] YYYY HH:mm',
+        l: 'DD/M/YYYY',
+        ll: 'D MMM YYYY',
+        lll: 'D MMM YYYY HH:mm',
+        llll: 'ddd, D MMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[Hôm nay lúc] LT',
+        nextDay: '[Ngày mai lúc] LT',
+        nextWeek: 'dddd [tuần tới lúc] LT',
+        lastDay: '[Hôm qua lúc] LT',
+        lastWeek: 'dddd [tuần trước lúc] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: '%s tới',
+        past: '%s trước',
+        s: 'vài giây',
+        ss: '%d giây',
+        m: 'một phút',
+        mm: '%d phút',
+        h: 'một giờ',
+        hh: '%d giờ',
+        d: 'một ngày',
+        dd: '%d ngày',
+        w: 'một tuần',
+        ww: '%d tuần',
+        M: 'một tháng',
+        MM: '%d tháng',
+        y: 'một năm',
+        yy: '%d năm',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}/,
+    ordinal: function (number) {
+        return number;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/x-pseudo.js b/backend/node_modules/moment/src/locale/x-pseudo.js
new file mode 100644
index 0000000..90df555
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/x-pseudo.js
@@ -0,0 +1,73 @@
+//! moment.js locale configuration
+//! locale : Pseudo [x-pseudo]
+//! author : Andrew Hood : https://github.com/andrewhood125
+
+import moment from '../moment';
+
+export default moment.defineLocale('x-pseudo', {
+    months: 'J~áñúá~rý_F~ébrú~árý_~Márc~h_Áp~ríl_~Máý_~Júñé~_Júl~ý_Áú~gúst~_Sép~témb~ér_Ó~ctób~ér_Ñ~óvém~bér_~Décé~mbér'.split(
+        '_'
+    ),
+    monthsShort:
+        'J~áñ_~Féb_~Már_~Ápr_~Máý_~Júñ_~Júl_~Áúg_~Sép_~Óct_~Ñóv_~Déc'.split(
+            '_'
+        ),
+    monthsParseExact: true,
+    weekdays:
+        'S~úñdá~ý_Mó~ñdáý~_Túé~sdáý~_Wéd~ñésd~áý_T~húrs~dáý_~Fríd~áý_S~átúr~dáý'.split(
+            '_'
+        ),
+    weekdaysShort: 'S~úñ_~Móñ_~Túé_~Wéd_~Thú_~Frí_~Sát'.split('_'),
+    weekdaysMin: 'S~ú_Mó~_Tú_~Wé_T~h_Fr~_Sá'.split('_'),
+    weekdaysParseExact: true,
+    longDateFormat: {
+        LT: 'HH:mm',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY HH:mm',
+        LLLL: 'dddd, D MMMM YYYY HH:mm',
+    },
+    calendar: {
+        sameDay: '[T~ódá~ý át] LT',
+        nextDay: '[T~ómó~rró~w át] LT',
+        nextWeek: 'dddd [át] LT',
+        lastDay: '[Ý~ést~érdá~ý át] LT',
+        lastWeek: '[L~ást] dddd [át] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'í~ñ %s',
+        past: '%s á~gó',
+        s: 'á ~féw ~sécó~ñds',
+        ss: '%d s~écóñ~ds',
+        m: 'á ~míñ~úté',
+        mm: '%d m~íñú~tés',
+        h: 'á~ñ hó~úr',
+        hh: '%d h~óúrs',
+        d: 'á ~dáý',
+        dd: '%d d~áýs',
+        M: 'á ~móñ~th',
+        MM: '%d m~óñt~hs',
+        y: 'á ~ýéár',
+        yy: '%d ý~éárs',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
+    ordinal: function (number) {
+        var b = number % 10,
+            output =
+                ~~((number % 100) / 10) === 1
+                    ? 'th'
+                    : b === 1
+                      ? 'st'
+                      : b === 2
+                        ? 'nd'
+                        : b === 3
+                          ? 'rd'
+                          : 'th';
+        return number + output;
+    },
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/yo.js b/backend/node_modules/moment/src/locale/yo.js
new file mode 100644
index 0000000..2fcb6e4
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/yo.js
@@ -0,0 +1,53 @@
+//! moment.js locale configuration
+//! locale : Yoruba Nigeria [yo]
+//! author : Atolagbe Abisoye : https://github.com/andela-batolagbe
+
+import moment from '../moment';
+
+export default moment.defineLocale('yo', {
+    months: 'Sẹ́rẹ́_Èrèlè_Ẹrẹ̀nà_Ìgbé_Èbibi_Òkùdu_Agẹmo_Ògún_Owewe_Ọ̀wàrà_Bélú_Ọ̀pẹ̀̀'.split(
+        '_'
+    ),
+    monthsShort: 'Sẹ́r_Èrl_Ẹrn_Ìgb_Èbi_Òkù_Agẹ_Ògú_Owe_Ọ̀wà_Bél_Ọ̀pẹ̀̀'.split('_'),
+    weekdays: 'Àìkú_Ajé_Ìsẹ́gun_Ọjọ́rú_Ọjọ́bọ_Ẹtì_Àbámẹ́ta'.split('_'),
+    weekdaysShort: 'Àìk_Ajé_Ìsẹ́_Ọjr_Ọjb_Ẹtì_Àbá'.split('_'),
+    weekdaysMin: 'Àì_Aj_Ìs_Ọr_Ọb_Ẹt_Àb'.split('_'),
+    longDateFormat: {
+        LT: 'h:mm A',
+        LTS: 'h:mm:ss A',
+        L: 'DD/MM/YYYY',
+        LL: 'D MMMM YYYY',
+        LLL: 'D MMMM YYYY h:mm A',
+        LLLL: 'dddd, D MMMM YYYY h:mm A',
+    },
+    calendar: {
+        sameDay: '[Ònì ni] LT',
+        nextDay: '[Ọ̀la ni] LT',
+        nextWeek: "dddd [Ọsẹ̀ tón'bọ] [ni] LT",
+        lastDay: '[Àna ni] LT',
+        lastWeek: 'dddd [Ọsẹ̀ tólọ́] [ni] LT',
+        sameElse: 'L',
+    },
+    relativeTime: {
+        future: 'ní %s',
+        past: '%s kọjá',
+        s: 'ìsẹjú aayá die',
+        ss: 'aayá %d',
+        m: 'ìsẹjú kan',
+        mm: 'ìsẹjú %d',
+        h: 'wákati kan',
+        hh: 'wákati %d',
+        d: 'ọjọ́ kan',
+        dd: 'ọjọ́ %d',
+        M: 'osù kan',
+        MM: 'osù %d',
+        y: 'ọdún kan',
+        yy: 'ọdún %d',
+    },
+    dayOfMonthOrdinalParse: /ọjọ́\s\d{1,2}/,
+    ordinal: 'ọjọ́ %d',
+    week: {
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/zh-cn.js b/backend/node_modules/moment/src/locale/zh-cn.js
new file mode 100644
index 0000000..2345ee6
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/zh-cn.js
@@ -0,0 +1,120 @@
+//! moment.js locale configuration
+//! locale : Chinese (China) [zh-cn]
+//! author : suupic : https://github.com/suupic
+//! author : Zeno Zeng : https://github.com/zenozeng
+//! author : uu109 : https://github.com/uu109
+
+import moment from '../moment';
+
+export default moment.defineLocale('zh-cn', {
+    months: '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.split(
+        '_'
+    ),
+    monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+        '_'
+    ),
+    weekdays: '星期日_星期一_星期二_星期三_星期四_星期五_星期六'.split('_'),
+    weekdaysShort: '周日_周一_周二_周三_周四_周五_周六'.split('_'),
+    weekdaysMin: '日_一_二_三_四_五_六'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'YYYY/MM/DD',
+        LL: 'YYYY年M月D日',
+        LLL: 'YYYY年M月D日Ah点mm分',
+        LLLL: 'YYYY年M月D日ddddAh点mm分',
+        l: 'YYYY/M/D',
+        ll: 'YYYY年M月D日',
+        lll: 'YYYY年M月D日 HH:mm',
+        llll: 'YYYY年M月D日dddd HH:mm',
+    },
+    meridiemParse: /凌晨|早上|上午|中午|下午|晚上/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === '凌晨' || meridiem === '早上' || meridiem === '上午') {
+            return hour;
+        } else if (meridiem === '下午' || meridiem === '晚上') {
+            return hour + 12;
+        } else {
+            // '中午'
+            return hour >= 11 ? hour : hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        var hm = hour * 100 + minute;
+        if (hm < 600) {
+            return '凌晨';
+        } else if (hm < 900) {
+            return '早上';
+        } else if (hm < 1130) {
+            return '上午';
+        } else if (hm < 1230) {
+            return '中午';
+        } else if (hm < 1800) {
+            return '下午';
+        } else {
+            return '晚上';
+        }
+    },
+    calendar: {
+        sameDay: '[今天]LT',
+        nextDay: '[明天]LT',
+        nextWeek: function (now) {
+            if (now.week() !== this.week()) {
+                return '[下]dddLT';
+            } else {
+                return '[本]dddLT';
+            }
+        },
+        lastDay: '[昨天]LT',
+        lastWeek: function (now) {
+            if (this.week() !== now.week()) {
+                return '[上]dddLT';
+            } else {
+                return '[本]dddLT';
+            }
+        },
+        sameElse: 'L',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(日|月|周)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'd':
+            case 'D':
+            case 'DDD':
+                return number + '日';
+            case 'M':
+                return number + '月';
+            case 'w':
+            case 'W':
+                return number + '周';
+            default:
+                return number;
+        }
+    },
+    relativeTime: {
+        future: '%s后',
+        past: '%s前',
+        s: '几秒',
+        ss: '%d 秒',
+        m: '1 分钟',
+        mm: '%d 分钟',
+        h: '1 小时',
+        hh: '%d 小时',
+        d: '1 天',
+        dd: '%d 天',
+        w: '1 周',
+        ww: '%d 周',
+        M: '1 个月',
+        MM: '%d 个月',
+        y: '1 年',
+        yy: '%d 年',
+    },
+    week: {
+        // GB/T 7408-1994《数据元和交换格式·信息交换·日期和时间表示法》与ISO 8601:1988等效
+        dow: 1, // Monday is the first day of the week.
+        doy: 4, // The week that contains Jan 4th is the first week of the year.
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/zh-hk.js b/backend/node_modules/moment/src/locale/zh-hk.js
new file mode 100644
index 0000000..78a1019
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/zh-hk.js
@@ -0,0 +1,101 @@
+//! moment.js locale configuration
+//! locale : Chinese (Hong Kong) [zh-hk]
+//! author : Ben : https://github.com/ben-lin
+//! author : Chris Lam : https://github.com/hehachris
+//! author : Konstantin : https://github.com/skfd
+//! author : Anthony : https://github.com/anthonylau
+
+import moment from '../moment';
+
+export default moment.defineLocale('zh-hk', {
+    months: '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.split(
+        '_'
+    ),
+    monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+        '_'
+    ),
+    weekdays: '星期日_星期一_星期二_星期三_星期四_星期五_星期六'.split('_'),
+    weekdaysShort: '週日_週一_週二_週三_週四_週五_週六'.split('_'),
+    weekdaysMin: '日_一_二_三_四_五_六'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'YYYY/MM/DD',
+        LL: 'YYYY年M月D日',
+        LLL: 'YYYY年M月D日 HH:mm',
+        LLLL: 'YYYY年M月D日dddd HH:mm',
+        l: 'YYYY/M/D',
+        ll: 'YYYY年M月D日',
+        lll: 'YYYY年M月D日 HH:mm',
+        llll: 'YYYY年M月D日dddd HH:mm',
+    },
+    meridiemParse: /凌晨|早上|上午|中午|下午|晚上/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === '凌晨' || meridiem === '早上' || meridiem === '上午') {
+            return hour;
+        } else if (meridiem === '中午') {
+            return hour >= 11 ? hour : hour + 12;
+        } else if (meridiem === '下午' || meridiem === '晚上') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        var hm = hour * 100 + minute;
+        if (hm < 600) {
+            return '凌晨';
+        } else if (hm < 900) {
+            return '早上';
+        } else if (hm < 1200) {
+            return '上午';
+        } else if (hm === 1200) {
+            return '中午';
+        } else if (hm < 1800) {
+            return '下午';
+        } else {
+            return '晚上';
+        }
+    },
+    calendar: {
+        sameDay: '[今天]LT',
+        nextDay: '[明天]LT',
+        nextWeek: '[下]ddddLT',
+        lastDay: '[昨天]LT',
+        lastWeek: '[上]ddddLT',
+        sameElse: 'L',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(日|月|週)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'd':
+            case 'D':
+            case 'DDD':
+                return number + '日';
+            case 'M':
+                return number + '月';
+            case 'w':
+            case 'W':
+                return number + '週';
+            default:
+                return number;
+        }
+    },
+    relativeTime: {
+        future: '%s後',
+        past: '%s前',
+        s: '幾秒',
+        ss: '%d 秒',
+        m: '1 分鐘',
+        mm: '%d 分鐘',
+        h: '1 小時',
+        hh: '%d 小時',
+        d: '1 天',
+        dd: '%d 天',
+        M: '1 個月',
+        MM: '%d 個月',
+        y: '1 年',
+        yy: '%d 年',
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/zh-mo.js b/backend/node_modules/moment/src/locale/zh-mo.js
new file mode 100644
index 0000000..9ed795d
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/zh-mo.js
@@ -0,0 +1,100 @@
+//! moment.js locale configuration
+//! locale : Chinese (Macau) [zh-mo]
+//! author : Ben : https://github.com/ben-lin
+//! author : Chris Lam : https://github.com/hehachris
+//! author : Tan Yuanhong : https://github.com/le0tan
+
+import moment from '../moment';
+
+export default moment.defineLocale('zh-mo', {
+    months: '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.split(
+        '_'
+    ),
+    monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+        '_'
+    ),
+    weekdays: '星期日_星期一_星期二_星期三_星期四_星期五_星期六'.split('_'),
+    weekdaysShort: '週日_週一_週二_週三_週四_週五_週六'.split('_'),
+    weekdaysMin: '日_一_二_三_四_五_六'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'DD/MM/YYYY',
+        LL: 'YYYY年M月D日',
+        LLL: 'YYYY年M月D日 HH:mm',
+        LLLL: 'YYYY年M月D日dddd HH:mm',
+        l: 'D/M/YYYY',
+        ll: 'YYYY年M月D日',
+        lll: 'YYYY年M月D日 HH:mm',
+        llll: 'YYYY年M月D日dddd HH:mm',
+    },
+    meridiemParse: /凌晨|早上|上午|中午|下午|晚上/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === '凌晨' || meridiem === '早上' || meridiem === '上午') {
+            return hour;
+        } else if (meridiem === '中午') {
+            return hour >= 11 ? hour : hour + 12;
+        } else if (meridiem === '下午' || meridiem === '晚上') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        var hm = hour * 100 + minute;
+        if (hm < 600) {
+            return '凌晨';
+        } else if (hm < 900) {
+            return '早上';
+        } else if (hm < 1130) {
+            return '上午';
+        } else if (hm < 1230) {
+            return '中午';
+        } else if (hm < 1800) {
+            return '下午';
+        } else {
+            return '晚上';
+        }
+    },
+    calendar: {
+        sameDay: '[今天] LT',
+        nextDay: '[明天] LT',
+        nextWeek: '[下]dddd LT',
+        lastDay: '[昨天] LT',
+        lastWeek: '[上]dddd LT',
+        sameElse: 'L',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(日|月|週)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'd':
+            case 'D':
+            case 'DDD':
+                return number + '日';
+            case 'M':
+                return number + '月';
+            case 'w':
+            case 'W':
+                return number + '週';
+            default:
+                return number;
+        }
+    },
+    relativeTime: {
+        future: '%s內',
+        past: '%s前',
+        s: '幾秒',
+        ss: '%d 秒',
+        m: '1 分鐘',
+        mm: '%d 分鐘',
+        h: '1 小時',
+        hh: '%d 小時',
+        d: '1 天',
+        dd: '%d 天',
+        M: '1 個月',
+        MM: '%d 個月',
+        y: '1 年',
+        yy: '%d 年',
+    },
+});
diff --git a/backend/node_modules/moment/src/locale/zh-tw.js b/backend/node_modules/moment/src/locale/zh-tw.js
new file mode 100644
index 0000000..aa98ab1
--- /dev/null
+++ b/backend/node_modules/moment/src/locale/zh-tw.js
@@ -0,0 +1,99 @@
+//! moment.js locale configuration
+//! locale : Chinese (Taiwan) [zh-tw]
+//! author : Ben : https://github.com/ben-lin
+//! author : Chris Lam : https://github.com/hehachris
+
+import moment from '../moment';
+
+export default moment.defineLocale('zh-tw', {
+    months: '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.split(
+        '_'
+    ),
+    monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
+        '_'
+    ),
+    weekdays: '星期日_星期一_星期二_星期三_星期四_星期五_星期六'.split('_'),
+    weekdaysShort: '週日_週一_週二_週三_週四_週五_週六'.split('_'),
+    weekdaysMin: '日_一_二_三_四_五_六'.split('_'),
+    longDateFormat: {
+        LT: 'HH:mm',
+        LTS: 'HH:mm:ss',
+        L: 'YYYY/MM/DD',
+        LL: 'YYYY年M月D日',
+        LLL: 'YYYY年M月D日 HH:mm',
+        LLLL: 'YYYY年M月D日dddd HH:mm',
+        l: 'YYYY/M/D',
+        ll: 'YYYY年M月D日',
+        lll: 'YYYY年M月D日 HH:mm',
+        llll: 'YYYY年M月D日dddd HH:mm',
+    },
+    meridiemParse: /凌晨|早上|上午|中午|下午|晚上/,
+    meridiemHour: function (hour, meridiem) {
+        if (hour === 12) {
+            hour = 0;
+        }
+        if (meridiem === '凌晨' || meridiem === '早上' || meridiem === '上午') {
+            return hour;
+        } else if (meridiem === '中午') {
+            return hour >= 11 ? hour : hour + 12;
+        } else if (meridiem === '下午' || meridiem === '晚上') {
+            return hour + 12;
+        }
+    },
+    meridiem: function (hour, minute, isLower) {
+        var hm = hour * 100 + minute;
+        if (hm < 600) {
+            return '凌晨';
+        } else if (hm < 900) {
+            return '早上';
+        } else if (hm < 1130) {
+            return '上午';
+        } else if (hm < 1230) {
+            return '中午';
+        } else if (hm < 1800) {
+            return '下午';
+        } else {
+            return '晚上';
+        }
+    },
+    calendar: {
+        sameDay: '[今天] LT',
+        nextDay: '[明天] LT',
+        nextWeek: '[下]dddd LT',
+        lastDay: '[昨天] LT',
+        lastWeek: '[上]dddd LT',
+        sameElse: 'L',
+    },
+    dayOfMonthOrdinalParse: /\d{1,2}(日|月|週)/,
+    ordinal: function (number, period) {
+        switch (period) {
+            case 'd':
+            case 'D':
+            case 'DDD':
+                return number + '日';
+            case 'M':
+                return number + '月';
+            case 'w':
+            case 'W':
+                return number + '週';
+            default:
+                return number;
+        }
+    },
+    relativeTime: {
+        future: '%s後',
+        past: '%s前',
+        s: '幾秒',
+        ss: '%d 秒',
+        m: '1 分鐘',
+        mm: '%d 分鐘',
+        h: '1 小時',
+        hh: '%d 小時',
+        d: '1 天',
+        dd: '%d 天',
+        M: '1 個月',
+        MM: '%d 個月',
+        y: '1 年',
+        yy: '%d 年',
+    },
+});
diff --git a/backend/node_modules/moment/src/moment.js b/backend/node_modules/moment/src/moment.js
new file mode 100644
index 0000000..f2ec350
--- /dev/null
+++ b/backend/node_modules/moment/src/moment.js
@@ -0,0 +1,93 @@
+//! moment.js
+//! version : 2.30.1
+//! authors : Tim Wood, Iskren Chernev, Moment.js contributors
+//! license : MIT
+//! momentjs.com
+
+import { hooks as moment, setHookCallback } from './lib/utils/hooks';
+
+moment.version = '2.30.1';
+
+import {
+    min,
+    max,
+    now,
+    isMoment,
+    momentPrototype as fn,
+    createUTC as utc,
+    createUnix as unix,
+    createLocal as local,
+    createInvalid as invalid,
+    createInZone as parseZone,
+} from './lib/moment/moment';
+
+import { getCalendarFormat } from './lib/moment/calendar';
+
+import {
+    defineLocale,
+    updateLocale,
+    getSetGlobalLocale as locale,
+    getLocale as localeData,
+    listLocales as locales,
+    listMonths as months,
+    listMonthsShort as monthsShort,
+    listWeekdays as weekdays,
+    listWeekdaysMin as weekdaysMin,
+    listWeekdaysShort as weekdaysShort,
+} from './lib/locale/locale';
+
+import {
+    isDuration,
+    createDuration as duration,
+    getSetRelativeTimeRounding as relativeTimeRounding,
+    getSetRelativeTimeThreshold as relativeTimeThreshold,
+} from './lib/duration/duration';
+
+import { normalizeUnits } from './lib/units/units';
+
+import isDate from './lib/utils/is-date';
+
+setHookCallback(local);
+
+moment.fn = fn;
+moment.min = min;
+moment.max = max;
+moment.now = now;
+moment.utc = utc;
+moment.unix = unix;
+moment.months = months;
+moment.isDate = isDate;
+moment.locale = locale;
+moment.invalid = invalid;
+moment.duration = duration;
+moment.isMoment = isMoment;
+moment.weekdays = weekdays;
+moment.parseZone = parseZone;
+moment.localeData = localeData;
+moment.isDuration = isDuration;
+moment.monthsShort = monthsShort;
+moment.weekdaysMin = weekdaysMin;
+moment.defineLocale = defineLocale;
+moment.updateLocale = updateLocale;
+moment.locales = locales;
+moment.weekdaysShort = weekdaysShort;
+moment.normalizeUnits = normalizeUnits;
+moment.relativeTimeRounding = relativeTimeRounding;
+moment.relativeTimeThreshold = relativeTimeThreshold;
+moment.calendarFormat = getCalendarFormat;
+moment.prototype = fn;
+
+// currently HTML5 input type only supports 24-hour formats
+moment.HTML5_FMT = {
+    DATETIME_LOCAL: 'YYYY-MM-DDTHH:mm', // <input type="datetime-local" />
+    DATETIME_LOCAL_SECONDS: 'YYYY-MM-DDTHH:mm:ss', // <input type="datetime-local" step="1" />
+    DATETIME_LOCAL_MS: 'YYYY-MM-DDTHH:mm:ss.SSS', // <input type="datetime-local" step="0.001" />
+    DATE: 'YYYY-MM-DD', // <input type="date" />
+    TIME: 'HH:mm', // <input type="time" />
+    TIME_SECONDS: 'HH:mm:ss', // <input type="time" step="1" />
+    TIME_MS: 'HH:mm:ss.SSS', // <input type="time" step="0.001" />
+    WEEK: 'GGGG-[W]WW', // <input type="week" />
+    MONTH: 'YYYY-MM', // <input type="month" />
+};
+
+export default moment;
diff --git a/backend/node_modules/moment/ts3.1-typings/moment.d.ts b/backend/node_modules/moment/ts3.1-typings/moment.d.ts
new file mode 100644
index 0000000..51fe8c2
--- /dev/null
+++ b/backend/node_modules/moment/ts3.1-typings/moment.d.ts
@@ -0,0 +1,785 @@
+/**
+ * @param strict Strict parsing disables the deprecated fallback to the native Date constructor when
+ * parsing a string.
+ */
+declare function moment(inp?: moment.MomentInput, strict?: boolean): moment.Moment;
+/**
+ * @param strict Strict parsing requires that the format and input match exactly, including delimiters.
+ * Strict parsing is frequently the best parsing option. For more information about choosing strict vs
+ * forgiving parsing, see the [parsing guide](https://momentjs.com/guides/#/parsing/).
+ */
+declare function moment(inp?: moment.MomentInput, format?: moment.MomentFormatSpecification, strict?: boolean): moment.Moment;
+/**
+ * @param strict Strict parsing requires that the format and input match exactly, including delimiters.
+ * Strict parsing is frequently the best parsing option. For more information about choosing strict vs
+ * forgiving parsing, see the [parsing guide](https://momentjs.com/guides/#/parsing/).
+ */
+declare function moment(inp?: moment.MomentInput, format?: moment.MomentFormatSpecification, language?: string, strict?: boolean): moment.Moment;
+
+declare namespace moment {
+  type RelativeTimeKey = 's' | 'ss' | 'm' | 'mm' | 'h' | 'hh' | 'd' | 'dd' | 'w' | 'ww' | 'M' | 'MM' | 'y' | 'yy';
+  type CalendarKey = 'sameDay' | 'nextDay' | 'lastDay' | 'nextWeek' | 'lastWeek' | 'sameElse' | string;
+  type LongDateFormatKey = 'LTS' | 'LT' | 'L' | 'LL' | 'LLL' | 'LLLL' | 'lts' | 'lt' | 'l' | 'll' | 'lll' | 'llll';
+
+  interface Locale {
+    calendar(key?: CalendarKey, m?: Moment, now?: Moment): string;
+
+    longDateFormat(key: LongDateFormatKey): string;
+    invalidDate(): string;
+    ordinal(n: number): string;
+
+    preparse(inp: string): string;
+    postformat(inp: string): string;
+    relativeTime(n: number, withoutSuffix: boolean,
+                 key: RelativeTimeKey, isFuture: boolean): string;
+    pastFuture(diff: number, absRelTime: string): string;
+    set(config: Object): void;
+
+    months(): string[];
+    months(m: Moment, format?: string): string;
+    monthsShort(): string[];
+    monthsShort(m: Moment, format?: string): string;
+    monthsParse(monthName: string, format: string, strict: boolean): number;
+    monthsRegex(strict: boolean): RegExp;
+    monthsShortRegex(strict: boolean): RegExp;
+
+    week(m: Moment): number;
+    firstDayOfYear(): number;
+    firstDayOfWeek(): number;
+
+    weekdays(): string[];
+    weekdays(m: Moment, format?: string): string;
+    weekdaysMin(): string[];
+    weekdaysMin(m: Moment): string;
+    weekdaysShort(): string[];
+    weekdaysShort(m: Moment): string;
+    weekdaysParse(weekdayName: string, format: string, strict: boolean): number;
+    weekdaysRegex(strict: boolean): RegExp;
+    weekdaysShortRegex(strict: boolean): RegExp;
+    weekdaysMinRegex(strict: boolean): RegExp;
+
+    isPM(input: string): boolean;
+    meridiem(hour: number, minute: number, isLower: boolean): string;
+  }
+
+  interface StandaloneFormatSpec {
+    format: string[];
+    standalone: string[];
+    isFormat?: RegExp;
+  }
+
+  interface WeekSpec {
+    dow: number;
+    doy?: number;
+  }
+
+  type CalendarSpecVal = string | ((m?: MomentInput, now?: Moment) => string);
+  interface CalendarSpec {
+    sameDay?: CalendarSpecVal;
+    nextDay?: CalendarSpecVal;
+    lastDay?: CalendarSpecVal;
+    nextWeek?: CalendarSpecVal;
+    lastWeek?: CalendarSpecVal;
+    sameElse?: CalendarSpecVal;
+
+    // any additional properties might be used with moment.calendarFormat
+    [x: string]: CalendarSpecVal | undefined;
+  }
+
+  type RelativeTimeSpecVal = (
+    string |
+    ((n: number, withoutSuffix: boolean,
+      key: RelativeTimeKey, isFuture: boolean) => string)
+  );
+  type RelativeTimeFuturePastVal = string | ((relTime: string) => string);
+
+  interface RelativeTimeSpec {
+    future?: RelativeTimeFuturePastVal;
+    past?: RelativeTimeFuturePastVal;
+    s?: RelativeTimeSpecVal;
+    ss?: RelativeTimeSpecVal;
+    m?: RelativeTimeSpecVal;
+    mm?: RelativeTimeSpecVal;
+    h?: RelativeTimeSpecVal;
+    hh?: RelativeTimeSpecVal;
+    d?: RelativeTimeSpecVal;
+    dd?: RelativeTimeSpecVal;
+    w?: RelativeTimeSpecVal;
+    ww?: RelativeTimeSpecVal;
+    M?: RelativeTimeSpecVal;
+    MM?: RelativeTimeSpecVal;
+    y?: RelativeTimeSpecVal;
+    yy?: RelativeTimeSpecVal;
+  }
+
+  interface LongDateFormatSpec {
+    LTS: string;
+    LT: string;
+    L: string;
+    LL: string;
+    LLL: string;
+    LLLL: string;
+
+    // lets forget for a sec that any upper/lower permutation will also work
+    lts?: string;
+    lt?: string;
+    l?: string;
+    ll?: string;
+    lll?: string;
+    llll?: string;
+  }
+
+  type MonthWeekdayFn = (momentToFormat: Moment, format?: string) => string;
+  type WeekdaySimpleFn = (momentToFormat: Moment) => string;
+
+  interface LocaleSpecification {
+    months?: string[] | StandaloneFormatSpec | MonthWeekdayFn;
+    monthsShort?: string[] | StandaloneFormatSpec | MonthWeekdayFn;
+
+    weekdays?: string[] | StandaloneFormatSpec | MonthWeekdayFn;
+    weekdaysShort?: string[] | StandaloneFormatSpec | WeekdaySimpleFn;
+    weekdaysMin?: string[] | StandaloneFormatSpec | WeekdaySimpleFn;
+
+    meridiemParse?: RegExp;
+    meridiem?: (hour: number, minute:number, isLower: boolean) => string;
+
+    isPM?: (input: string) => boolean;
+
+    longDateFormat?: LongDateFormatSpec;
+    calendar?: CalendarSpec;
+    relativeTime?: RelativeTimeSpec;
+    invalidDate?: string;
+    ordinal?: (n: number) => string;
+    ordinalParse?: RegExp;
+
+    week?: WeekSpec;
+
+    // Allow anything: in general any property that is passed as locale spec is
+    // put in the locale object so it can be used by locale functions
+    [x: string]: any;
+  }
+
+  interface MomentObjectOutput {
+    years: number;
+    /* One digit */
+    months: number;
+    /* Day of the month */
+    date: number;
+    hours: number;
+    minutes: number;
+    seconds: number;
+    milliseconds: number;
+  }
+  interface argThresholdOpts {
+    ss?: number;
+    s?: number;
+    m?: number;
+    h?: number;
+    d?: number;
+    w?: number | null;
+    M?: number;
+  }
+
+  interface Duration {
+    clone(): Duration;
+
+    humanize(argWithSuffix?: boolean, argThresholds?: argThresholdOpts): string;
+    
+    humanize(argThresholds?: argThresholdOpts): string;
+
+    abs(): Duration;
+
+    as(units: unitOfTime.Base): number;
+    get(units: unitOfTime.Base): number;
+
+    milliseconds(): number;
+    asMilliseconds(): number;
+
+    seconds(): number;
+    asSeconds(): number;
+
+    minutes(): number;
+    asMinutes(): number;
+
+    hours(): number;
+    asHours(): number;
+
+    days(): number;
+    asDays(): number;
+
+    weeks(): number;
+    asWeeks(): number;
+
+    months(): number;
+    asMonths(): number;
+
+    years(): number;
+    asYears(): number;
+
+    add(inp?: DurationInputArg1, unit?: DurationInputArg2): Duration;
+    subtract(inp?: DurationInputArg1, unit?: DurationInputArg2): Duration;
+
+    locale(): string;
+    locale(locale: LocaleSpecifier): Duration;
+    localeData(): Locale;
+
+    toISOString(): string;
+    toJSON(): string;
+
+    isValid(): boolean;
+
+    /**
+     * @deprecated since version 2.8.0
+     */
+    lang(locale: LocaleSpecifier): Moment;
+    /**
+     * @deprecated since version 2.8.0
+     */
+    lang(): Locale;
+    /**
+     * @deprecated
+     */
+    toIsoString(): string;
+  }
+
+  interface MomentRelativeTime {
+    future: any;
+    past: any;
+    s: any;
+    ss: any;
+    m: any;
+    mm: any;
+    h: any;
+    hh: any;
+    d: any;
+    dd: any;
+    M: any;
+    MM: any;
+    y: any;
+    yy: any;
+  }
+
+  interface MomentLongDateFormat {
+    L: string;
+    LL: string;
+    LLL: string;
+    LLLL: string;
+    LT: string;
+    LTS: string;
+
+    l?: string;
+    ll?: string;
+    lll?: string;
+    llll?: string;
+    lt?: string;
+    lts?: string;
+  }
+
+  interface MomentParsingFlags {
+    empty: boolean;
+    unusedTokens: string[];
+    unusedInput: string[];
+    overflow: number;
+    charsLeftOver: number;
+    nullInput: boolean;
+    invalidMonth: string | null;
+    invalidFormat: boolean;
+    userInvalidated: boolean;
+    iso: boolean;
+    parsedDateParts: any[];
+    meridiem: string | null;
+  }
+
+  interface MomentParsingFlagsOpt {
+    empty?: boolean;
+    unusedTokens?: string[];
+    unusedInput?: string[];
+    overflow?: number;
+    charsLeftOver?: number;
+    nullInput?: boolean;
+    invalidMonth?: string;
+    invalidFormat?: boolean;
+    userInvalidated?: boolean;
+    iso?: boolean;
+    parsedDateParts?: any[];
+    meridiem?: string | null;
+  }
+
+  interface MomentBuiltinFormat {
+    __momentBuiltinFormatBrand: any;
+  }
+
+  type MomentFormatSpecification = string | MomentBuiltinFormat | (string | MomentBuiltinFormat)[];
+
+  namespace unitOfTime {
+    type Base = (
+      "year" | "years" | "y" |
+      "month" | "months" | "M" |
+      "week" | "weeks" | "w" |
+      "day" | "days" | "d" |
+      "hour" | "hours" | "h" |
+      "minute" | "minutes" | "m" |
+      "second" | "seconds" | "s" |
+      "millisecond" | "milliseconds" | "ms"
+    );
+
+    type _quarter = "quarter" | "quarters" | "Q";
+    type _isoWeek = "isoWeek" | "isoWeeks" | "W";
+    type _date = "date" | "dates" | "D";
+    type DurationConstructor = Base | _quarter;
+
+    type DurationAs = Base;
+
+    type StartOf = Base | _quarter | _isoWeek | _date | null;
+
+    type Diff = Base | _quarter;
+
+    type MomentConstructor = Base | _date;
+
+    type All = Base | _quarter | _isoWeek | _date |
+      "weekYear" | "weekYears" | "gg" |
+      "isoWeekYear" | "isoWeekYears" | "GG" |
+      "dayOfYear" | "dayOfYears" | "DDD" |
+      "weekday" | "weekdays" | "e" |
+      "isoWeekday" | "isoWeekdays" | "E";
+  }
+
+  interface MomentInputObject {
+    years?: number;
+    year?: number;
+    y?: number;
+
+    months?: number;
+    month?: number;
+    M?: number;
+
+    days?: number;
+    day?: number;
+    d?: number;
+
+    dates?: number;
+    date?: number;
+    D?: number;
+
+    hours?: number;
+    hour?: number;
+    h?: number;
+
+    minutes?: number;
+    minute?: number;
+    m?: number;
+
+    seconds?: number;
+    second?: number;
+    s?: number;
+
+    milliseconds?: number;
+    millisecond?: number;
+    ms?: number;
+  }
+
+  interface DurationInputObject extends MomentInputObject {
+    quarters?: number;
+    quarter?: number;
+    Q?: number;
+
+    weeks?: number;
+    week?: number;
+    w?: number;
+  }
+
+  interface MomentSetObject extends MomentInputObject {
+    weekYears?: number;
+    weekYear?: number;
+    gg?: number;
+
+    isoWeekYears?: number;
+    isoWeekYear?: number;
+    GG?: number;
+
+    quarters?: number;
+    quarter?: number;
+    Q?: number;
+
+    weeks?: number;
+    week?: number;
+    w?: number;
+
+    isoWeeks?: number;
+    isoWeek?: number;
+    W?: number;
+
+    dayOfYears?: number;
+    dayOfYear?: number;
+    DDD?: number;
+
+    weekdays?: number;
+    weekday?: number;
+    e?: number;
+
+    isoWeekdays?: number;
+    isoWeekday?: number;
+    E?: number;
+  }
+
+  interface FromTo {
+    from: MomentInput;
+    to: MomentInput;
+  }
+
+  type MomentInput = Moment | Date | string | number | (number | string)[] | MomentInputObject | null | undefined;
+  type DurationInputArg1 = Duration | number | string | FromTo | DurationInputObject | null | undefined;
+  type DurationInputArg2 = unitOfTime.DurationConstructor;
+  type LocaleSpecifier = string | Moment | Duration | string[] | boolean;
+
+  interface MomentCreationData {
+    input: MomentInput;
+    format?: MomentFormatSpecification;
+    locale: Locale;
+    isUTC: boolean;
+    strict?: boolean;
+  }
+
+  interface Moment extends Object {
+    format(format?: string): string;
+
+    startOf(unitOfTime: unitOfTime.StartOf): Moment;
+    endOf(unitOfTime: unitOfTime.StartOf): Moment;
+
+    add(amount?: DurationInputArg1, unit?: DurationInputArg2): Moment;
+    /**
+     * @deprecated reverse syntax
+     */
+    add(unit: unitOfTime.DurationConstructor, amount: number|string): Moment;
+
+    subtract(amount?: DurationInputArg1, unit?: DurationInputArg2): Moment;
+    /**
+     * @deprecated reverse syntax
+     */
+    subtract(unit: unitOfTime.DurationConstructor, amount: number|string): Moment;
+
+    calendar(): string;
+    calendar(formats: CalendarSpec): string;
+    calendar(time?: MomentInput, formats?: CalendarSpec): string;
+
+    clone(): Moment;
+
+    /**
+     * @return Unix timestamp in milliseconds
+     */
+    valueOf(): number;
+
+    // current date/time in local mode
+    local(keepLocalTime?: boolean): Moment;
+    isLocal(): boolean;
+
+    // current date/time in UTC mode
+    utc(keepLocalTime?: boolean): Moment;
+    isUTC(): boolean;
+    /**
+     * @deprecated use isUTC
+     */
+    isUtc(): boolean;
+
+    parseZone(): Moment;
+    isValid(): boolean;
+    invalidAt(): number;
+
+    hasAlignedHourOffset(other?: MomentInput): boolean;
+
+    creationData(): MomentCreationData;
+    parsingFlags(): MomentParsingFlags;
+
+    year(y: number): Moment;
+    year(): number;
+    /**
+     * @deprecated use year(y)
+     */
+    years(y: number): Moment;
+    /**
+     * @deprecated use year()
+     */
+    years(): number;
+    quarter(): number;
+    quarter(q: number): Moment;
+    quarters(): number;
+    quarters(q: number): Moment;
+    month(M: number|string): Moment;
+    month(): number;
+    /**
+     * @deprecated use month(M)
+     */
+    months(M: number|string): Moment;
+    /**
+     * @deprecated use month()
+     */
+    months(): number;
+    day(d: number|string): Moment;
+    day(): number;
+    days(d: number|string): Moment;
+    days(): number;
+    date(d: number): Moment;
+    date(): number;
+    /**
+     * @deprecated use date(d)
+     */
+    dates(d: number): Moment;
+    /**
+     * @deprecated use date()
+     */
+    dates(): number;
+    hour(h: number): Moment;
+    hour(): number;
+    hours(h: number): Moment;
+    hours(): number;
+    minute(m: number): Moment;
+    minute(): number;
+    minutes(m: number): Moment;
+    minutes(): number;
+    second(s: number): Moment;
+    second(): number;
+    seconds(s: number): Moment;
+    seconds(): number;
+    millisecond(ms: number): Moment;
+    millisecond(): number;
+    milliseconds(ms: number): Moment;
+    milliseconds(): number;
+    weekday(): number;
+    weekday(d: number): Moment;
+    isoWeekday(): number;
+    isoWeekday(d: number|string): Moment;
+    weekYear(): number;
+    weekYear(d: number): Moment;
+    isoWeekYear(): number;
+    isoWeekYear(d: number): Moment;
+    week(): number;
+    week(d: number): Moment;
+    weeks(): number;
+    weeks(d: number): Moment;
+    isoWeek(): number;
+    isoWeek(d: number): Moment;
+    isoWeeks(): number;
+    isoWeeks(d: number): Moment;
+    weeksInYear(): number;
+    isoWeeksInYear(): number;
+    isoWeeksInISOWeekYear(): number;
+    dayOfYear(): number;
+    dayOfYear(d: number): Moment;
+
+    from(inp: MomentInput, suffix?: boolean): string;
+    to(inp: MomentInput, suffix?: boolean): string;
+    fromNow(withoutSuffix?: boolean): string;
+    toNow(withoutPrefix?: boolean): string;
+
+    diff(b: MomentInput, unitOfTime?: unitOfTime.Diff, precise?: boolean): number;
+
+    toArray(): [number, number, number, number, number, number, number];
+    toDate(): Date;
+    toISOString(keepOffset?: boolean): string;
+    inspect(): string;
+    toJSON(): string;
+    unix(): number;
+
+    isLeapYear(): boolean;
+    /**
+     * @deprecated in favor of utcOffset
+     */
+    zone(): number;
+    zone(b: number|string): Moment;
+    utcOffset(): number;
+    utcOffset(b: number|string, keepLocalTime?: boolean): Moment;
+    isUtcOffset(): boolean;
+    daysInMonth(): number;
+    isDST(): boolean;
+
+    zoneAbbr(): string;
+    zoneName(): string;
+
+    isBefore(inp?: MomentInput, granularity?: unitOfTime.StartOf): boolean;
+    isAfter(inp?: MomentInput, granularity?: unitOfTime.StartOf): boolean;
+    isSame(inp?: MomentInput, granularity?: unitOfTime.StartOf): boolean;
+    isSameOrAfter(inp?: MomentInput, granularity?: unitOfTime.StartOf): boolean;
+    isSameOrBefore(inp?: MomentInput, granularity?: unitOfTime.StartOf): boolean;
+    isBetween(a: MomentInput, b: MomentInput, granularity?: unitOfTime.StartOf, inclusivity?: "()" | "[)" | "(]" | "[]"): boolean;
+
+    /**
+     * @deprecated as of 2.8.0, use locale
+     */
+    lang(language: LocaleSpecifier): Moment;
+    /**
+     * @deprecated as of 2.8.0, use locale
+     */
+    lang(): Locale;
+
+    locale(): string;
+    locale(locale: LocaleSpecifier): Moment;
+
+    localeData(): Locale;
+
+    /**
+     * @deprecated no reliable implementation
+     */
+    isDSTShifted(): boolean;
+
+    // NOTE(constructor): Same as moment constructor
+    /**
+     * @deprecated as of 2.7.0, use moment.min/max
+     */
+    max(inp?: MomentInput, format?: MomentFormatSpecification, strict?: boolean): Moment;
+    /**
+     * @deprecated as of 2.7.0, use moment.min/max
+     */
+    max(inp?: MomentInput, format?: MomentFormatSpecification, language?: string, strict?: boolean): Moment;
+
+    // NOTE(constructor): Same as moment constructor
+    /**
+     * @deprecated as of 2.7.0, use moment.min/max
+     */
+    min(inp?: MomentInput, format?: MomentFormatSpecification, strict?: boolean): Moment;
+    /**
+     * @deprecated as of 2.7.0, use moment.min/max
+     */
+    min(inp?: MomentInput, format?: MomentFormatSpecification, language?: string, strict?: boolean): Moment;
+
+    get(unit: unitOfTime.All): number;
+    set(unit: unitOfTime.All, value: number): Moment;
+    set(objectLiteral: MomentSetObject): Moment;
+
+    toObject(): MomentObjectOutput;
+  }
+
+  export var version: string;
+  export var fn: Moment;
+
+  // NOTE(constructor): Same as moment constructor
+  /**
+   * @param strict Strict parsing disables the deprecated fallback to the native Date constructor when
+   * parsing a string.
+   */
+  export function utc(inp?: MomentInput, strict?: boolean): Moment;
+  /**
+   * @param strict Strict parsing requires that the format and input match exactly, including delimiters.
+   * Strict parsing is frequently the best parsing option. For more information about choosing strict vs
+   * forgiving parsing, see the [parsing guide](https://momentjs.com/guides/#/parsing/).
+   */
+  export function utc(inp?: MomentInput, format?: MomentFormatSpecification, strict?: boolean): Moment;
+  /**
+   * @param strict Strict parsing requires that the format and input match exactly, including delimiters.
+   * Strict parsing is frequently the best parsing option. For more information about choosing strict vs
+   * forgiving parsing, see the [parsing guide](https://momentjs.com/guides/#/parsing/).
+   */
+  export function utc(inp?: MomentInput, format?: MomentFormatSpecification, language?: string, strict?: boolean): Moment;
+
+  export function unix(timestamp: number): Moment;
+
+  export function invalid(flags?: MomentParsingFlagsOpt): Moment;
+  export function isMoment(m: any): m is Moment;
+  export function isDate(m: any): m is Date;
+  export function isDuration(d: any): d is Duration;
+
+  /**
+   * @deprecated in 2.8.0
+   */
+  export function lang(language?: string): string;
+  /**
+   * @deprecated in 2.8.0
+   */
+  export function lang(language?: string, definition?: Locale): string;
+
+  export function locale(language?: string): string;
+  export function locale(language?: string[]): string;
+  export function locale(language?: string, definition?: LocaleSpecification | null | undefined): string;
+
+  export function localeData(key?: string | string[]): Locale;
+
+  export function duration(inp?: DurationInputArg1, unit?: DurationInputArg2): Duration;
+
+  // NOTE(constructor): Same as moment constructor
+  export function parseZone(inp?: MomentInput, format?: MomentFormatSpecification, strict?: boolean): Moment;
+  export function parseZone(inp?: MomentInput, format?: MomentFormatSpecification, language?: string, strict?: boolean): Moment;
+
+  export function months(): string[];
+  export function months(index: number): string;
+  export function months(format: string): string[];
+  export function months(format: string, index: number): string;
+  export function monthsShort(): string[];
+  export function monthsShort(index: number): string;
+  export function monthsShort(format: string): string[];
+  export function monthsShort(format: string, index: number): string;
+
+  export function weekdays(): string[];
+  export function weekdays(index: number): string;
+  export function weekdays(format: string): string[];
+  export function weekdays(format: string, index: number): string;
+  export function weekdays(localeSorted: boolean): string[];
+  export function weekdays(localeSorted: boolean, index: number): string;
+  export function weekdays(localeSorted: boolean, format: string): string[];
+  export function weekdays(localeSorted: boolean, format: string, index: number): string;
+  export function weekdaysShort(): string[];
+  export function weekdaysShort(index: number): string;
+  export function weekdaysShort(format: string): string[];
+  export function weekdaysShort(format: string, index: number): string;
+  export function weekdaysShort(localeSorted: boolean): string[];
+  export function weekdaysShort(localeSorted: boolean, index: number): string;
+  export function weekdaysShort(localeSorted: boolean, format: string): string[];
+  export function weekdaysShort(localeSorted: boolean, format: string, index: number): string;
+  export function weekdaysMin(): string[];
+  export function weekdaysMin(index: number): string;
+  export function weekdaysMin(format: string): string[];
+  export function weekdaysMin(format: string, index: number): string;
+  export function weekdaysMin(localeSorted: boolean): string[];
+  export function weekdaysMin(localeSorted: boolean, index: number): string;
+  export function weekdaysMin(localeSorted: boolean, format: string): string[];
+  export function weekdaysMin(localeSorted: boolean, format: string, index: number): string;
+
+  export function min(moments: Moment[]): Moment;
+  export function min(...moments: Moment[]): Moment;
+  export function max(moments: Moment[]): Moment;
+  export function max(...moments: Moment[]): Moment;
+
+  /**
+   * Returns unix time in milliseconds. Overwrite for profit.
+   */
+  export function now(): number;
+
+  export function defineLocale(language: string, localeSpec: LocaleSpecification | null): Locale;
+  export function updateLocale(language: string, localeSpec: LocaleSpecification | null): Locale;
+
+  export function locales(): string[];
+
+  export function normalizeUnits(unit: unitOfTime.All): string;
+  export function relativeTimeThreshold(threshold: string): number | boolean;
+  export function relativeTimeThreshold(threshold: string, limit: number): boolean;
+  export function relativeTimeRounding(fn: (num: number) => number): boolean;
+  export function relativeTimeRounding(): (num: number) => number;
+  export function calendarFormat(m: Moment, now: Moment): string;
+
+  export function parseTwoDigitYear(input: string): number;
+  /**
+   * Constant used to enable explicit ISO_8601 format parsing.
+   */
+  export var ISO_8601: MomentBuiltinFormat;
+  export var RFC_2822: MomentBuiltinFormat;
+
+  export var defaultFormat: string;
+  export var defaultFormatUtc: string;
+
+  export var suppressDeprecationWarnings: boolean;
+  export var deprecationHandler: ((name: string | null, msg: string) => void) | null | undefined;
+
+  export var HTML5_FMT: {
+    DATETIME_LOCAL: string,
+    DATETIME_LOCAL_SECONDS: string,
+    DATETIME_LOCAL_MS: string,
+    DATE: string,
+    TIME: string,
+    TIME_SECONDS: string,
+    TIME_MS: string,
+    WEEK: string,
+    MONTH: string
+  };
+
+}
+
+export = moment;
+export as namespace moment;
diff --git a/backend/node_modules/mongodb-connection-string-url/.esm-wrapper.mjs b/backend/node_modules/mongodb-connection-string-url/.esm-wrapper.mjs
new file mode 100644
index 0000000..a0f5be5
--- /dev/null
+++ b/backend/node_modules/mongodb-connection-string-url/.esm-wrapper.mjs
@@ -0,0 +1,6 @@
+import mod from "./lib/index.js";
+
+export default mod["default"];
+export const CommaAndColonSeparatedRecord = mod.CommaAndColonSeparatedRecord;
+export const ConnectionString = mod.ConnectionString;
+export const redactConnectionString = mod.redactConnectionString;
diff --git a/backend/node_modules/mongodb-connection-string-url/LICENSE b/backend/node_modules/mongodb-connection-string-url/LICENSE
new file mode 100644
index 0000000..d57f55f
--- /dev/null
+++ b/backend/node_modules/mongodb-connection-string-url/LICENSE
@@ -0,0 +1,192 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
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+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
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+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
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+
+      "Work" shall mean the work of authorship, whether in Source or
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+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
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+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
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+      communication on electronic mailing lists, source code control systems,
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+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
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+      Work and such Derivative Works in Source or Object form.
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+   3. Grant of Patent License. Subject to the terms and conditions of
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+      (except as stated in this section) patent license to make, have made,
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+      Contribution(s) alone or by combination of their Contribution(s)
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+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
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+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
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+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   Copyright 2020 MongoDB Inc.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+
diff --git a/backend/node_modules/mongodb-connection-string-url/README.md b/backend/node_modules/mongodb-connection-string-url/README.md
new file mode 100644
index 0000000..0eb65d0
--- /dev/null
+++ b/backend/node_modules/mongodb-connection-string-url/README.md
@@ -0,0 +1,25 @@
+# mongodb-connection-string-url
+
+MongoDB connection strings, based on the WhatWG URL API
+
+```js
+import ConnectionString from 'mongodb-connection-string-url';
+
+const cs = new ConnectionString('mongodb://localhost');
+cs.searchParams.set('readPreference', 'secondary');
+console.log(cs.href); // 'mongodb://localhost/?readPreference=secondary'
+```
+
+## Deviations from the WhatWG URL package
+
+- URL parameters are case-insensitive
+- The `.host`, `.hostname` and `.port` properties cannot be set, and reading
+  them does not return meaningful results (and are typed as `never`in TypeScript)
+- The `.hosts` property contains a list of all hosts in the connection string
+- The `.href` property cannot be set, only read
+- There is an additional `.isSRV` property, set to `true` for `mongodb+srv://`
+- There is an additional `.clone()` utility method on the prototype
+
+## LICENSE
+
+Apache-2.0
diff --git a/backend/node_modules/mongodb-connection-string-url/lib/index.d.ts b/backend/node_modules/mongodb-connection-string-url/lib/index.d.ts
new file mode 100644
index 0000000..49c18ea
--- /dev/null
+++ b/backend/node_modules/mongodb-connection-string-url/lib/index.d.ts
@@ -0,0 +1,62 @@
+import { URL } from 'whatwg-url';
+import { redactConnectionString, ConnectionStringRedactionOptions } from './redact';
+export { redactConnectionString, ConnectionStringRedactionOptions };
+declare class CaseInsensitiveMap<K extends string = string> extends Map<K, string> {
+    delete(name: K): boolean;
+    get(name: K): string | undefined;
+    has(name: K): boolean;
+    set(name: K, value: any): this;
+    _normalizeKey(name: any): K;
+}
+declare abstract class URLWithoutHost extends URL {
+    abstract get host(): never;
+    abstract set host(value: never);
+    abstract get hostname(): never;
+    abstract set hostname(value: never);
+    abstract get port(): never;
+    abstract set port(value: never);
+    abstract get href(): string;
+    abstract set href(value: string);
+}
+export interface ConnectionStringParsingOptions {
+    looseValidation?: boolean;
+}
+export declare class ConnectionString extends URLWithoutHost {
+    _hosts: string[];
+    constructor(uri: string, options?: ConnectionStringParsingOptions);
+    get host(): never;
+    set host(_ignored: never);
+    get hostname(): never;
+    set hostname(_ignored: never);
+    get port(): never;
+    set port(_ignored: never);
+    get href(): string;
+    set href(_ignored: string);
+    get isSRV(): boolean;
+    get hosts(): string[];
+    set hosts(list: string[]);
+    toString(): string;
+    clone(): ConnectionString;
+    redact(options?: ConnectionStringRedactionOptions): ConnectionString;
+    typedSearchParams<T extends {}>(): {
+        append(name: keyof T & string, value: any): void;
+        delete(name: keyof T & string): void;
+        get(name: keyof T & string): string | null;
+        getAll(name: keyof T & string): string[];
+        has(name: keyof T & string): boolean;
+        set(name: keyof T & string, value: any): void;
+        keys(): IterableIterator<keyof T & string>;
+        values(): IterableIterator<string>;
+        entries(): IterableIterator<[keyof T & string, string]>;
+        _normalizeKey(name: keyof T & string): string;
+        [Symbol.iterator](): IterableIterator<[keyof T & string, string]>;
+        sort(): void;
+        forEach<THIS_ARG = void>(callback: (this: THIS_ARG, value: string, name: string, searchParams: any) => void, thisArg?: THIS_ARG | undefined): void;
+        readonly [Symbol.toStringTag]: "URLSearchParams";
+    };
+}
+export declare class CommaAndColonSeparatedRecord<K extends {} = Record<string, unknown>> extends CaseInsensitiveMap<keyof K & string> {
+    constructor(from?: string | null);
+    toString(): string;
+}
+export default ConnectionString;
diff --git a/backend/node_modules/mongodb-connection-string-url/lib/index.js b/backend/node_modules/mongodb-connection-string-url/lib/index.js
new file mode 100644
index 0000000..8e4864d
--- /dev/null
+++ b/backend/node_modules/mongodb-connection-string-url/lib/index.js
@@ -0,0 +1,213 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.CommaAndColonSeparatedRecord = exports.ConnectionString = exports.redactConnectionString = void 0;
+const whatwg_url_1 = require("whatwg-url");
+const redact_1 = require("./redact");
+Object.defineProperty(exports, "redactConnectionString", { enumerable: true, get: function () { return redact_1.redactConnectionString; } });
+const DUMMY_HOSTNAME = '__this_is_a_placeholder__';
+function connectionStringHasValidScheme(connectionString) {
+    return (connectionString.startsWith('mongodb://') ||
+        connectionString.startsWith('mongodb+srv://'));
+}
+const HOSTS_REGEX = /^(?<protocol>[^/]+):\/\/(?:(?<username>[^:@]*)(?::(?<password>[^@]*))?@)?(?<hosts>(?!:)[^/?@]*)(?<rest>.*)/;
+class CaseInsensitiveMap extends Map {
+    delete(name) {
+        return super.delete(this._normalizeKey(name));
+    }
+    get(name) {
+        return super.get(this._normalizeKey(name));
+    }
+    has(name) {
+        return super.has(this._normalizeKey(name));
+    }
+    set(name, value) {
+        return super.set(this._normalizeKey(name), value);
+    }
+    _normalizeKey(name) {
+        name = `${name}`;
+        for (const key of this.keys()) {
+            if (key.toLowerCase() === name.toLowerCase()) {
+                name = key;
+                break;
+            }
+        }
+        return name;
+    }
+}
+function caseInsenstiveURLSearchParams(Ctor) {
+    return class CaseInsenstiveURLSearchParams extends Ctor {
+        append(name, value) {
+            return super.append(this._normalizeKey(name), value);
+        }
+        delete(name) {
+            return super.delete(this._normalizeKey(name));
+        }
+        get(name) {
+            return super.get(this._normalizeKey(name));
+        }
+        getAll(name) {
+            return super.getAll(this._normalizeKey(name));
+        }
+        has(name) {
+            return super.has(this._normalizeKey(name));
+        }
+        set(name, value) {
+            return super.set(this._normalizeKey(name), value);
+        }
+        keys() {
+            return super.keys();
+        }
+        values() {
+            return super.values();
+        }
+        entries() {
+            return super.entries();
+        }
+        [Symbol.iterator]() {
+            return super[Symbol.iterator]();
+        }
+        _normalizeKey(name) {
+            return CaseInsensitiveMap.prototype._normalizeKey.call(this, name);
+        }
+    };
+}
+class URLWithoutHost extends whatwg_url_1.URL {
+}
+class MongoParseError extends Error {
+    get name() {
+        return 'MongoParseError';
+    }
+}
+class ConnectionString extends URLWithoutHost {
+    constructor(uri, options = {}) {
+        var _a;
+        const { looseValidation } = options;
+        if (!looseValidation && !connectionStringHasValidScheme(uri)) {
+            throw new MongoParseError('Invalid scheme, expected connection string to start with "mongodb://" or "mongodb+srv://"');
+        }
+        const match = uri.match(HOSTS_REGEX);
+        if (!match) {
+            throw new MongoParseError(`Invalid connection string "${uri}"`);
+        }
+        const { protocol, username, password, hosts, rest } = (_a = match.groups) !== null && _a !== void 0 ? _a : {};
+        if (!looseValidation) {
+            if (!protocol || !hosts) {
+                throw new MongoParseError(`Protocol and host list are required in "${uri}"`);
+            }
+            try {
+                decodeURIComponent(username !== null && username !== void 0 ? username : '');
+                decodeURIComponent(password !== null && password !== void 0 ? password : '');
+            }
+            catch (err) {
+                throw new MongoParseError(err.message);
+            }
+            const illegalCharacters = /[:/?#[\]@]/gi;
+            if (username === null || username === void 0 ? void 0 : username.match(illegalCharacters)) {
+                throw new MongoParseError(`Username contains unescaped characters ${username}`);
+            }
+            if (!username || !password) {
+                const uriWithoutProtocol = uri.replace(`${protocol}://`, '');
+                if (uriWithoutProtocol.startsWith('@') || uriWithoutProtocol.startsWith(':')) {
+                    throw new MongoParseError('URI contained empty userinfo section');
+                }
+            }
+            if (password === null || password === void 0 ? void 0 : password.match(illegalCharacters)) {
+                throw new MongoParseError('Password contains unescaped characters');
+            }
+        }
+        let authString = '';
+        if (typeof username === 'string')
+            authString += username;
+        if (typeof password === 'string')
+            authString += `:${password}`;
+        if (authString)
+            authString += '@';
+        try {
+            super(`${protocol.toLowerCase()}://${authString}${DUMMY_HOSTNAME}${rest}`);
+        }
+        catch (err) {
+            if (looseValidation) {
+                new ConnectionString(uri, {
+                    ...options,
+                    looseValidation: false
+                });
+            }
+            if (typeof err.message === 'string') {
+                err.message = err.message.replace(DUMMY_HOSTNAME, hosts);
+            }
+            throw err;
+        }
+        this._hosts = hosts.split(',');
+        if (!looseValidation) {
+            if (this.isSRV && this.hosts.length !== 1) {
+                throw new MongoParseError('mongodb+srv URI cannot have multiple service names');
+            }
+            if (this.isSRV && this.hosts.some(host => host.includes(':'))) {
+                throw new MongoParseError('mongodb+srv URI cannot have port number');
+            }
+        }
+        if (!this.pathname) {
+            this.pathname = '/';
+        }
+        Object.setPrototypeOf(this.searchParams, caseInsenstiveURLSearchParams(this.searchParams.constructor).prototype);
+    }
+    get host() { return DUMMY_HOSTNAME; }
+    set host(_ignored) { throw new Error('No single host for connection string'); }
+    get hostname() { return DUMMY_HOSTNAME; }
+    set hostname(_ignored) { throw new Error('No single host for connection string'); }
+    get port() { return ''; }
+    set port(_ignored) { throw new Error('No single host for connection string'); }
+    get href() { return this.toString(); }
+    set href(_ignored) { throw new Error('Cannot set href for connection strings'); }
+    get isSRV() {
+        return this.protocol.includes('srv');
+    }
+    get hosts() {
+        return this._hosts;
+    }
+    set hosts(list) {
+        this._hosts = list;
+    }
+    toString() {
+        return super.toString().replace(DUMMY_HOSTNAME, this.hosts.join(','));
+    }
+    clone() {
+        return new ConnectionString(this.toString(), {
+            looseValidation: true
+        });
+    }
+    redact(options) {
+        return (0, redact_1.redactValidConnectionString)(this, options);
+    }
+    typedSearchParams() {
+        const sametype = false && new (caseInsenstiveURLSearchParams(whatwg_url_1.URLSearchParams))();
+        return this.searchParams;
+    }
+    [Symbol.for('nodejs.util.inspect.custom')]() {
+        const { href, origin, protocol, username, password, hosts, pathname, search, searchParams, hash } = this;
+        return { href, origin, protocol, username, password, hosts, pathname, search, searchParams, hash };
+    }
+}
+exports.ConnectionString = ConnectionString;
+class CommaAndColonSeparatedRecord extends CaseInsensitiveMap {
+    constructor(from) {
+        super();
+        for (const entry of (from !== null && from !== void 0 ? from : '').split(',')) {
+            if (!entry)
+                continue;
+            const colonIndex = entry.indexOf(':');
+            if (colonIndex === -1) {
+                this.set(entry, '');
+            }
+            else {
+                this.set(entry.slice(0, colonIndex), entry.slice(colonIndex + 1));
+            }
+        }
+    }
+    toString() {
+        return [...this].map(entry => entry.join(':')).join(',');
+    }
+}
+exports.CommaAndColonSeparatedRecord = CommaAndColonSeparatedRecord;
+exports.default = ConnectionString;
+//# sourceMappingURL=index.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb-connection-string-url/lib/index.js.map b/backend/node_modules/mongodb-connection-string-url/lib/index.js.map
new file mode 100644
index 0000000..d325062
--- /dev/null
+++ b/backend/node_modules/mongodb-connection-string-url/lib/index.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb-connection-string-url/lib/redact.d.ts b/backend/node_modules/mongodb-connection-string-url/lib/redact.d.ts
new file mode 100644
index 0000000..94a64de
--- /dev/null
+++ b/backend/node_modules/mongodb-connection-string-url/lib/redact.d.ts
@@ -0,0 +1,7 @@
+import ConnectionString from './index';
+export interface ConnectionStringRedactionOptions {
+    redactUsernames?: boolean;
+    replacementString?: string;
+}
+export declare function redactValidConnectionString(inputUrl: Readonly<ConnectionString>, options?: ConnectionStringRedactionOptions): ConnectionString;
+export declare function redactConnectionString(uri: string, options?: ConnectionStringRedactionOptions): string;
diff --git a/backend/node_modules/mongodb-connection-string-url/lib/redact.js b/backend/node_modules/mongodb-connection-string-url/lib/redact.js
new file mode 100644
index 0000000..62c7ba7
--- /dev/null
+++ b/backend/node_modules/mongodb-connection-string-url/lib/redact.js
@@ -0,0 +1,86 @@
+"use strict";
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    var desc = Object.getOwnPropertyDescriptor(m, k);
+    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
+      desc = { enumerable: true, get: function() { return m[k]; } };
+    }
+    Object.defineProperty(o, k2, desc);
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
+    Object.defineProperty(o, "default", { enumerable: true, value: v });
+}) : function(o, v) {
+    o["default"] = v;
+});
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    __setModuleDefault(result, mod);
+    return result;
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.redactConnectionString = exports.redactValidConnectionString = void 0;
+const index_1 = __importStar(require("./index"));
+function redactValidConnectionString(inputUrl, options) {
+    var _a, _b;
+    const url = inputUrl.clone();
+    const replacementString = (_a = options === null || options === void 0 ? void 0 : options.replacementString) !== null && _a !== void 0 ? _a : '_credentials_';
+    const redactUsernames = (_b = options === null || options === void 0 ? void 0 : options.redactUsernames) !== null && _b !== void 0 ? _b : true;
+    if ((url.username || url.password) && redactUsernames) {
+        url.username = replacementString;
+        url.password = '';
+    }
+    else if (url.password) {
+        url.password = replacementString;
+    }
+    if (url.searchParams.has('authMechanismProperties')) {
+        const props = new index_1.CommaAndColonSeparatedRecord(url.searchParams.get('authMechanismProperties'));
+        if (props.get('AWS_SESSION_TOKEN')) {
+            props.set('AWS_SESSION_TOKEN', replacementString);
+            url.searchParams.set('authMechanismProperties', props.toString());
+        }
+    }
+    if (url.searchParams.has('tlsCertificateKeyFilePassword')) {
+        url.searchParams.set('tlsCertificateKeyFilePassword', replacementString);
+    }
+    if (url.searchParams.has('proxyUsername') && redactUsernames) {
+        url.searchParams.set('proxyUsername', replacementString);
+    }
+    if (url.searchParams.has('proxyPassword')) {
+        url.searchParams.set('proxyPassword', replacementString);
+    }
+    return url;
+}
+exports.redactValidConnectionString = redactValidConnectionString;
+function redactConnectionString(uri, options) {
+    var _a, _b;
+    const replacementString = (_a = options === null || options === void 0 ? void 0 : options.replacementString) !== null && _a !== void 0 ? _a : '<credentials>';
+    const redactUsernames = (_b = options === null || options === void 0 ? void 0 : options.redactUsernames) !== null && _b !== void 0 ? _b : true;
+    let parsed;
+    try {
+        parsed = new index_1.default(uri);
+    }
+    catch (_c) { }
+    if (parsed) {
+        options = { ...options, replacementString: '___credentials___' };
+        return parsed.redact(options).toString().replace(/___credentials___/g, replacementString);
+    }
+    const R = replacementString;
+    const replacements = [
+        uri => uri.replace(redactUsernames ? /(\/\/)(.*)(@)/g : /(\/\/[^@]*:)(.*)(@)/g, `$1${R}$3`),
+        uri => uri.replace(/(AWS_SESSION_TOKEN(:|%3A))([^,&]+)/gi, `$1${R}`),
+        uri => uri.replace(/(tlsCertificateKeyFilePassword=)([^&]+)/gi, `$1${R}`),
+        uri => redactUsernames ? uri.replace(/(proxyUsername=)([^&]+)/gi, `$1${R}`) : uri,
+        uri => uri.replace(/(proxyPassword=)([^&]+)/gi, `$1${R}`)
+    ];
+    for (const replacer of replacements) {
+        uri = replacer(uri);
+    }
+    return uri;
+}
+exports.redactConnectionString = redactConnectionString;
+//# sourceMappingURL=redact.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb-connection-string-url/lib/redact.js.map b/backend/node_modules/mongodb-connection-string-url/lib/redact.js.map
new file mode 100644
index 0000000..24a282b
--- /dev/null
+++ b/backend/node_modules/mongodb-connection-string-url/lib/redact.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"redact.js","sourceRoot":"","sources":["../src/redact.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;;;;;;;;;AAAA,iDAAyE;AAOzE,SAAgB,2BAA2B,CACzC,QAAoC,EACpC,OAA0C;;IAC1C,MAAM,GAAG,GAAG,QAAQ,CAAC,KAAK,EAAE,CAAC;IAC7B,MAAM,iBAAiB,GAAG,MAAA,OAAO,aAAP,OAAO,uBAAP,OAAO,CAAE,iBAAiB,mCAAI,eAAe,CAAC;IACxE,MAAM,eAAe,GAAG,MAAA,OAAO,aAAP,OAAO,uBAAP,OAAO,CAAE,eAAe,mCAAI,IAAI,CAAC;IAEzD,IAAI,CAAC,GAAG,CAAC,QAAQ,IAAI,GAAG,CAAC,QAAQ,CAAC,IAAI,eAAe,EAAE;QACrD,GAAG,CAAC,QAAQ,GAAG,iBAAiB,CAAC;QACjC,GAAG,CAAC,QAAQ,GAAG,EAAE,CAAC;KACnB;SAAM,IAAI,GAAG,CAAC,QAAQ,EAAE;QACvB,GAAG,CAAC,QAAQ,GAAG,iBAAiB,CAAC;KAClC;IACD,IAAI,GAAG,CAAC,YAAY,CAAC,GAAG,CAAC,yBAAyB,CAAC,EAAE;QACnD,MAAM,KAAK,GAAG,IAAI,oCAA4B,CAAC,GAAG,CAAC,YAAY,CAAC,GAAG,CAAC,yBAAyB,CAAC,CAAC,CAAC;QAChG,IAAI,KAAK,CAAC,GAAG,CAAC,mBAAmB,CAAC,EAAE;YAClC,KAAK,CAAC,GAAG,CAAC,mBAAmB,EAAE,iBAAiB,CAAC,CAAC;YAClD,GAAG,CAAC,YAAY,CAAC,GAAG,CAAC,yBAAyB,EAAE,KAAK,CAAC,QAAQ,EAAE,CAAC,CAAC;SACnE;KACF;IACD,IAAI,GAAG,CAAC,YAAY,CAAC,GAAG,CAAC,+BAA+B,CAAC,EAAE;QACzD,GAAG,CAAC,YAAY,CAAC,GAAG,CAAC,+BAA+B,EAAE,iBAAiB,CAAC,CAAC;KAC1E;IACD,IAAI,GAAG,CAAC,YAAY,CAAC,GAAG,CAAC,eAAe,CAAC,IAAI,eAAe,EAAE;QAC5D,GAAG,CAAC,YAAY,CAAC,GAAG,CAAC,eAAe,EAAE,iBAAiB,CAAC,CAAC;KAC1D;IACD,IAAI,GAAG,CAAC,YAAY,CAAC,GAAG,CAAC,eAAe,CAAC,EAAE;QACzC,GAAG,CAAC,YAAY,CAAC,GAAG,CAAC,eAAe,EAAE,iBAAiB,CAAC,CAAC;KAC1D;IACD,OAAO,GAAG,CAAC;AACb,CAAC;AA9BD,kEA8BC;AAED,SAAgB,sBAAsB,CACpC,GAAW,EACX,OAA0C;;IAC1C,MAAM,iBAAiB,GAAG,MAAA,OAAO,aAAP,OAAO,uBAAP,OAAO,CAAE,iBAAiB,mCAAI,eAAe,CAAC;IACxE,MAAM,eAAe,GAAG,MAAA,OAAO,aAAP,OAAO,uBAAP,OAAO,CAAE,eAAe,mCAAI,IAAI,CAAC;IAEzD,IAAI,MAAoC,CAAC;IACzC,IAAI;QACF,MAAM,GAAG,IAAI,eAAgB,CAAC,GAAG,CAAC,CAAC;KACpC;IAAC,WAAM,GAAE;IACV,IAAI,MAAM,EAAE;QAGV,OAAO,GAAG,EAAE,GAAG,OAAO,EAAE,iBAAiB,EAAE,mBAAmB,EAAE,CAAC;QACjE,OAAO,MAAM,CAAC,MAAM,CAAC,OAAO,CAAC,CAAC,QAAQ,EAAE,CAAC,OAAO,CAAC,oBAAoB,EAAE,iBAAiB,CAAC,CAAC;KAC3F;IAID,MAAM,CAAC,GAAG,iBAAiB,CAAC;IAC5B,MAAM,YAAY,GAAgC;QAEhD,GAAG,CAAC,EAAE,CAAC,GAAG,CAAC,OAAO,CAAC,eAAe,CAAC,CAAC,CAAC,gBAAgB,CAAC,CAAC,CAAC,sBAAsB,EAAE,KAAK,CAAC,IAAI,CAAC;QAE3F,GAAG,CAAC,EAAE,CAAC,GAAG,CAAC,OAAO,CAAC,sCAAsC,EAAE,KAAK,CAAC,EAAE,CAAC;QAEpE,GAAG,CAAC,EAAE,CAAC,GAAG,CAAC,OAAO,CAAC,2CAA2C,EAAE,KAAK,CAAC,EAAE,CAAC;QAEzE,GAAG,CAAC,EAAE,CAAC,eAAe,CAAC,CAAC,CAAC,GAAG,CAAC,OAAO,CAAC,2BAA2B,EAAE,KAAK,CAAC,EAAE,CAAC,CAAC,CAAC,CAAC,GAAG;QAEjF,GAAG,CAAC,EAAE,CAAC,GAAG,CAAC,OAAO,CAAC,2BAA2B,EAAE,KAAK,CAAC,EAAE,CAAC;KAC1D,CAAC;IACF,KAAK,MAAM,QAAQ,IAAI,YAAY,EAAE;QACnC,GAAG,GAAG,QAAQ,CAAC,GAAG,CAAC,CAAC;KACrB;IACD,OAAO,GAAG,CAAC;AACb,CAAC;AApCD,wDAoCC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb-connection-string-url/package.json b/backend/node_modules/mongodb-connection-string-url/package.json
new file mode 100644
index 0000000..0158536
--- /dev/null
+++ b/backend/node_modules/mongodb-connection-string-url/package.json
@@ -0,0 +1,62 @@
+{
+  "name": "mongodb-connection-string-url",
+  "version": "3.0.2",
+  "description": "MongoDB connection strings, based on the WhatWG URL API",
+  "keywords": [
+    "password",
+    "prompt",
+    "tty"
+  ],
+  "homepage": "https://github.com/mongodb-js/mongodb-connection-string-url",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/mongodb-js/mongodb-connection-string-url.git"
+  },
+  "bugs": {
+    "url": "https://github.com/mongodb-js/mongodb-connection-string-url/issues"
+  },
+  "main": "lib/index.js",
+  "exports": {
+    "require": "./lib/index.js",
+    "import": "./.esm-wrapper.mjs"
+  },
+  "files": [
+    "LICENSE",
+    "lib",
+    "package.json",
+    "README.md",
+    ".esm-wrapper.mjs"
+  ],
+  "scripts": {
+    "lint": "eslint \"{src,test}/**/*.ts\"",
+    "test": "npm run lint && npm run build && nyc mocha --colors -r ts-node/register test/*.ts",
+    "build": "npm run compile-ts && gen-esm-wrapper . ./.esm-wrapper.mjs",
+    "prepack": "npm run build",
+    "compile-ts": "tsc -p tsconfig.json"
+  },
+  "license": "Apache-2.0",
+  "devDependencies": {
+    "@types/chai": "^5.0.1",
+    "@types/mocha": "^8.0.3",
+    "@types/node": "^22.9.0",
+    "@typescript-eslint/eslint-plugin": "^4.2.0",
+    "@typescript-eslint/parser": "^4.2.0",
+    "chai": "^4.2.0",
+    "eslint": "^7.9.0",
+    "eslint-config-semistandard": "^15.0.1",
+    "eslint-config-standard": "^14.1.1",
+    "eslint-plugin-import": "^2.22.0",
+    "eslint-plugin-node": "^11.1.0",
+    "eslint-plugin-promise": "^7.1.0",
+    "eslint-plugin-standard": "^5.0.0",
+    "gen-esm-wrapper": "^1.1.3",
+    "mocha": "^11.0.1",
+    "nyc": "^15.1.0",
+    "ts-node": "^10.9.1",
+    "typescript": "^4.7.4"
+  },
+  "dependencies": {
+    "@types/whatwg-url": "^11.0.2",
+    "whatwg-url": "^14.1.0 || ^13.0.0"
+  }
+}
diff --git a/backend/node_modules/mongodb/LICENSE.md b/backend/node_modules/mongodb/LICENSE.md
new file mode 100644
index 0000000..ad410e1
--- /dev/null
+++ b/backend/node_modules/mongodb/LICENSE.md
@@ -0,0 +1,201 @@
+Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
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+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
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+      the terms of any separate license agreement you may have executed
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+   6. Trademarks. This License does not grant permission to use the trade
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+
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+      whether in tort (including negligence), contract, or otherwise,
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+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "{}"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
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+      file or class name and description of purpose be included on the
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+   Copyright {yyyy} {name of copyright owner}
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+   Licensed under the Apache License, Version 2.0 (the "License");
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+       http://www.apache.org/licenses/LICENSE-2.0
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+   Unless required by applicable law or agreed to in writing, software
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/README.md b/backend/node_modules/mongodb/README.md
new file mode 100644
index 0000000..8520f24
--- /dev/null
+++ b/backend/node_modules/mongodb/README.md
@@ -0,0 +1,358 @@
+# MongoDB Node.js Driver
+
+The official [MongoDB](https://www.mongodb.com/) driver for Node.js.
+
+**Upgrading to version 6? Take a look at our [upgrade guide here](https://github.com/mongodb/node-mongodb-native/blob/HEAD/etc/notes/CHANGES_6.0.0.md)!**
+
+## Quick Links
+
+| Site                     | Link                                                                                                                                  |
+| ------------------------ | ------------------------------------------------------------------------------------------------------------------------------------- |
+| Documentation            | [www.mongodb.com/docs/drivers/node](https://www.mongodb.com/docs/drivers/node)                                                        |
+| API Docs                 | [mongodb.github.io/node-mongodb-native](https://mongodb.github.io/node-mongodb-native)                                                |
+| `npm` package            | [www.npmjs.com/package/mongodb](https://www.npmjs.com/package/mongodb)                                                                |
+| MongoDB                  | [www.mongodb.com](https://www.mongodb.com)                                                                                            |
+| MongoDB University       | [learn.mongodb.com](https://learn.mongodb.com/catalog?labels=%5B%22Language%22%5D&values=%5B%22Node.js%22%5D)                         |
+| MongoDB Developer Center | [www.mongodb.com/developer](https://www.mongodb.com/developer/languages/javascript/)                                                  |
+| Stack Overflow           | [stackoverflow.com](https://stackoverflow.com/search?q=%28%5Btypescript%5D+or+%5Bjavascript%5D+or+%5Bnode.js%5D%29+and+%5Bmongodb%5D) |
+| Source Code              | [github.com/mongodb/node-mongodb-native](https://github.com/mongodb/node-mongodb-native)                                              |
+| Upgrade to v6            | [etc/notes/CHANGES_6.0.0.md](https://github.com/mongodb/node-mongodb-native/blob/HEAD/etc/notes/CHANGES_6.0.0.md)                     |
+| Contributing             | [CONTRIBUTING.md](https://github.com/mongodb/node-mongodb-native/blob/HEAD/CONTRIBUTING.md)                                           |
+| Changelog                | [HISTORY.md](https://github.com/mongodb/node-mongodb-native/blob/HEAD/HISTORY.md)                                                     |
+
+
+
+### Release Integrity
+
+Releases are created automatically and signed using the [Node team's GPG key](https://pgp.mongodb.com/node-driver.asc). This applies to the git tag as well as all release packages provided as part of a GitHub release. To verify the provided packages, download the key and import it using gpg:
+
+```shell
+gpg --import node-driver.asc
+```
+
+The GitHub release contains a detached signature file for the NPM package (named
+`mongodb-X.Y.Z.tgz.sig`).
+
+The following command returns the link npm package.
+```shell
+npm view mongodb@vX.Y.Z dist.tarball
+```
+
+Using the result of the above command, a `curl` command can return the official npm package for the release.
+
+To verify the integrity of the downloaded package, run the following command:
+```shell
+gpg --verify mongodb-X.Y.Z.tgz.sig mongodb-X.Y.Z.tgz
+```
+
+>[!Note]
+No verification is done when using npm to install the package. The contents of the Github tarball and npm's tarball are identical.
+
+### Bugs / Feature Requests
+
+Think you’ve found a bug? Want to see a new feature in `node-mongodb-native`? Please open a
+case in our issue management tool, JIRA:
+
+- Create an account and login [jira.mongodb.org](https://jira.mongodb.org).
+- Navigate to the NODE project [jira.mongodb.org/browse/NODE](https://jira.mongodb.org/browse/NODE).
+- Click **Create Issue** - Please provide as much information as possible about the issue type and how to reproduce it.
+
+Bug reports in JIRA for all driver projects (i.e. NODE, PYTHON, CSHARP, JAVA) and the
+Core Server (i.e. SERVER) project are **public**.
+
+### Support / Feedback
+
+For issues with, questions about, or feedback for the Node.js driver, please look into our [support channels](https://www.mongodb.com/docs/manual/support). Please do not email any of the driver developers directly with issues or questions - you're more likely to get an answer on the [MongoDB Community Forums](https://community.mongodb.com/tags/c/drivers-odms-connectors/7/node-js-driver).
+
+### Change Log
+
+Change history can be found in [`HISTORY.md`](https://github.com/mongodb/node-mongodb-native/blob/HEAD/HISTORY.md).
+
+### Compatibility
+
+The driver currently supports 3.6+ servers.
+
+** 3.6 support is deprecated and support will be removed in a future version **
+
+For exhaustive server and runtime version compatibility matrices, please refer to the following links:
+
+- [MongoDB](https://www.mongodb.com/docs/drivers/node/current/compatibility/#mongodb-compatibility)
+- [NodeJS](https://www.mongodb.com/docs/drivers/node/current/compatibility/#language-compatibility)
+
+#### Component Support Matrix
+
+The following table describes add-on component version compatibility for the Node.js driver. Only packages with versions in these supported ranges are stable when used in combination.
+
+| Component                                                                            | `mongodb@3.x`      | `mongodb@4.x`      | `mongodb@5.x`      | `mongodb@<6.12` | `mongodb@>=6.12`|
+| ------------------------------------------------------------------------------------ | ------------------ | ------------------ | ------------------ | --------------- | --------------- |
+| [bson](https://www.npmjs.com/package/bson)                                           | ^1.0.0             | ^4.0.0             | ^5.0.0             | ^6.0.0          | ^6.0.0          |
+| [bson-ext](https://www.npmjs.com/package/bson-ext)                                   | ^1.0.0 \|\| ^2.0.0 | ^4.0.0             | N/A                | N/A             | N/A             |
+| [kerberos](https://www.npmjs.com/package/kerberos)                                   | ^1.0.0             | ^1.0.0 \|\| ^2.0.0 | ^1.0.0 \|\| ^2.0.0 | ^2.0.1          | ^2.0.1          |
+| [mongodb-client-encryption](https://www.npmjs.com/package/mongodb-client-encryption) | ^1.0.0             | ^1.0.0 \|\| ^2.0.0 | ^2.3.0             | ^6.0.0          | ^6.0.0          |
+| [mongodb-legacy](https://www.npmjs.com/package/mongodb-legacy)                       | N/A                | ^4.0.0             | ^5.0.0             | ^6.0.0          | ^6.0.0          |
+| [@mongodb-js/zstd](https://www.npmjs.com/package/@mongodb-js/zstd)                   | N/A                | ^1.0.0             | ^1.0.0             | ^1.1.0          | ^1.1.0 \|\| ^2.0.0 |
+
+
+#### Typescript Version
+
+We recommend using the latest version of typescript, however we currently ensure the driver's public types compile against `typescript@4.4.0`.
+This is the lowest typescript version guaranteed to work with our driver: older versions may or may not work - use at your own risk.
+Since typescript [does not restrict breaking changes to major versions](https://github.com/Microsoft/TypeScript/wiki/Breaking-Changes), we consider this support best effort.
+If you run into any unexpected compiler failures against our supported TypeScript versions, please let us know by filing an issue on our [JIRA](https://jira.mongodb.org/browse/NODE).
+
+Additionally, our Typescript types are compatible with the ECMAScript standard for our minimum supported Node version.  Currently, our Typescript targets es2021.
+
+## Installation
+
+The recommended way to get started using the Node.js 5.x driver is by using the `npm` (Node Package Manager) to install the dependency in your project.
+
+After you've created your own project using `npm init`, you can run:
+
+```bash
+npm install mongodb
+# or ...
+yarn add mongodb
+```
+
+This will download the MongoDB driver and add a dependency entry in your `package.json` file.
+
+If you are a Typescript user, you will need the Node.js type definitions to use the driver's definitions:
+
+```sh
+npm install -D @types/node
+```
+
+## Driver Extensions
+
+The MongoDB driver can optionally be enhanced by the following feature packages:
+
+Maintained by MongoDB:
+
+- Zstd network compression - [@mongodb-js/zstd](https://github.com/mongodb-js/zstd)
+- MongoDB field level and queryable encryption - [mongodb-client-encryption](https://github.com/mongodb/libmongocrypt#readme)
+- GSSAPI / SSPI / Kerberos authentication - [kerberos](https://github.com/mongodb-js/kerberos)
+
+Some of these packages include native C++ extensions.
+Consult the [trouble shooting guide here](https://github.com/mongodb/node-mongodb-native/blob/HEAD/etc/notes/native-extensions.md) if you run into compilation issues.
+
+Third party:
+
+- Snappy network compression - [snappy](https://github.com/Brooooooklyn/snappy)
+- AWS authentication - [@aws-sdk/credential-providers](https://github.com/aws/aws-sdk-js-v3/tree/main/packages/credential-providers)
+
+## Quick Start
+
+This guide will show you how to set up a simple application using Node.js and MongoDB. Its scope is only how to set up the driver and perform the simple CRUD operations. For more in-depth coverage, see the [official documentation](https://www.mongodb.com/docs/drivers/node/).
+
+### Create the `package.json` file
+
+First, create a directory where your application will live.
+
+```bash
+mkdir myProject
+cd myProject
+```
+
+Enter the following command and answer the questions to create the initial structure for your new project:
+
+```bash
+npm init -y
+```
+
+Next, install the driver as a dependency.
+
+```bash
+npm install mongodb
+```
+
+### Start a MongoDB Server
+
+For complete MongoDB installation instructions, see [the manual](https://www.mongodb.com/docs/manual/installation/).
+
+1. Download the right MongoDB version from [MongoDB](https://www.mongodb.org/downloads)
+2. Create a database directory (in this case under **/data**).
+3. Install and start a `mongod` process.
+
+```bash
+mongod --dbpath=/data
+```
+
+You should see the **mongod** process start up and print some status information.
+
+### Connect to MongoDB
+
+Create a new **app.js** file and add the following code to try out some basic CRUD
+operations using the MongoDB driver.
+
+Add code to connect to the server and the database **myProject**:
+
+> **NOTE:** Resolving DNS Connection issues
+>
+> Node.js 18 changed the default DNS resolution ordering from always prioritizing IPv4 to the ordering
+> returned by the DNS provider. In some environments, this can result in `localhost` resolving to
+> an IPv6 address instead of IPv4 and a consequent failure to connect to the server.
+>
+> This can be resolved by:
+>
+> - specifying the IP address family using the MongoClient `family` option (`MongoClient(<uri>, { family: 4 } )`)
+> - launching mongod or mongos with the ipv6 flag enabled ([--ipv6 mongod option documentation](https://www.mongodb.com/docs/manual/reference/program/mongod/#std-option-mongod.--ipv6))
+> - using a host of `127.0.0.1` in place of localhost
+> - specifying the DNS resolution ordering with the `--dns-resolution-order` Node.js command line argument (e.g. `node --dns-resolution-order=ipv4first`)
+
+```js
+const { MongoClient } = require('mongodb');
+// or as an es module:
+// import { MongoClient } from 'mongodb'
+
+// Connection URL
+const url = 'mongodb://localhost:27017';
+const client = new MongoClient(url);
+
+// Database Name
+const dbName = 'myProject';
+
+async function main() {
+  // Use connect method to connect to the server
+  await client.connect();
+  console.log('Connected successfully to server');
+  const db = client.db(dbName);
+  const collection = db.collection('documents');
+
+  // the following code examples can be pasted here...
+
+  return 'done.';
+}
+
+main()
+  .then(console.log)
+  .catch(console.error)
+  .finally(() => client.close());
+```
+
+Run your app from the command line with:
+
+```bash
+node app.js
+```
+
+The application should print **Connected successfully to server** to the console.
+
+### Insert a Document
+
+Add to **app.js** the following function which uses the **insertMany**
+method to add three documents to the **documents** collection.
+
+```js
+const insertResult = await collection.insertMany([{ a: 1 }, { a: 2 }, { a: 3 }]);
+console.log('Inserted documents =>', insertResult);
+```
+
+The **insertMany** command returns an object with information about the insert operations.
+
+### Find All Documents
+
+Add a query that returns all the documents.
+
+```js
+const findResult = await collection.find({}).toArray();
+console.log('Found documents =>', findResult);
+```
+
+This query returns all the documents in the **documents** collection.
+If you add this below the insertMany example, you'll see the documents you've inserted.
+
+### Find Documents with a Query Filter
+
+Add a query filter to find only documents which meet the query criteria.
+
+```js
+const filteredDocs = await collection.find({ a: 3 }).toArray();
+console.log('Found documents filtered by { a: 3 } =>', filteredDocs);
+```
+
+Only the documents which match `'a' : 3` should be returned.
+
+### Update a document
+
+The following operation updates a document in the **documents** collection.
+
+```js
+const updateResult = await collection.updateOne({ a: 3 }, { $set: { b: 1 } });
+console.log('Updated documents =>', updateResult);
+```
+
+The method updates the first document where the field **a** is equal to **3** by adding a new field **b** to the document set to **1**. `updateResult` contains information about whether there was a matching document to update or not.
+
+### Remove a document
+
+Remove the document where the field **a** is equal to **3**.
+
+```js
+const deleteResult = await collection.deleteMany({ a: 3 });
+console.log('Deleted documents =>', deleteResult);
+```
+
+### Index a Collection
+
+[Indexes](https://www.mongodb.com/docs/manual/indexes/) can improve your application's
+performance. The following function creates an index on the **a** field in the
+**documents** collection.
+
+```js
+const indexName = await collection.createIndex({ a: 1 });
+console.log('index name =', indexName);
+```
+
+For more detailed information, see the [indexing strategies page](https://www.mongodb.com/docs/manual/applications/indexes/).
+
+## Error Handling
+
+If you need to filter certain errors from our driver, we have a helpful tree of errors described in [etc/notes/errors.md](https://github.com/mongodb/node-mongodb-native/blob/HEAD/etc/notes/errors.md).
+
+It is our recommendation to use `instanceof` checks on errors and to avoid relying on parsing `error.message` and `error.name` strings in your code.
+We guarantee `instanceof` checks will pass according to semver guidelines, but errors may be sub-classed or their messages may change at any time, even patch releases, as we see fit to increase the helpfulness of the errors.
+
+Any new errors we add to the driver will directly extend an existing error class and no existing error will be moved to a different parent class outside of a major release.
+This means `instanceof` will always be able to accurately capture the errors that our driver throws.
+
+```typescript
+const client = new MongoClient(url);
+await client.connect();
+const collection = client.db().collection('collection');
+
+try {
+  await collection.insertOne({ _id: 1 });
+  await collection.insertOne({ _id: 1 }); // duplicate key error
+} catch (error) {
+  if (error instanceof MongoServerError) {
+    console.log(`Error worth logging: ${error}`); // special case for some reason
+  }
+  throw error; // still want to crash
+}
+```
+
+## Nightly releases
+
+If you need to test with a change from the latest `main` branch, our `mongodb` npm package has nightly versions released under the `nightly` tag.
+
+```sh
+npm install mongodb@nightly
+```
+
+Nightly versions are published regardless of testing outcome.
+This means there could be semantic breakages or partially implemented features.
+The nightly build is not suitable for production use.
+
+## Next Steps
+
+- [MongoDB Documentation](https://www.mongodb.com/docs/manual/)
+- [MongoDB Node Driver Documentation](https://www.mongodb.com/docs/drivers/node/)
+- [Read about Schemas](https://www.mongodb.com/docs/manual/core/data-modeling-introduction/)
+- [Star us on GitHub](https://github.com/mongodb/node-mongodb-native)
+
+## License
+
+[Apache 2.0](LICENSE.md)
+
+© 2012-present MongoDB [Contributors](https://github.com/mongodb/node-mongodb-native/blob/HEAD/CONTRIBUTORS.md) \
+© 2009-2012 Christian Amor Kvalheim
diff --git a/backend/node_modules/mongodb/etc/prepare.js b/backend/node_modules/mongodb/etc/prepare.js
new file mode 100644
index 0000000..2039d0b
--- /dev/null
+++ b/backend/node_modules/mongodb/etc/prepare.js
@@ -0,0 +1,12 @@
+#! /usr/bin/env node
+var cp = require('child_process');
+var fs = require('fs');
+var os = require('os');
+
+if (fs.existsSync('src')) {
+  cp.spawn('npm', ['run', 'build:dts'], { stdio: 'inherit', shell: os.platform() === 'win32' });
+} else {
+  if (!fs.existsSync('lib')) {
+    console.warn('MongoDB: No compiled javascript present, the driver is not installed correctly.');
+  }
+}
diff --git a/backend/node_modules/mongodb/lib/admin.js b/backend/node_modules/mongodb/lib/admin.js
new file mode 100644
index 0000000..69d9772
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/admin.js
@@ -0,0 +1,135 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Admin = void 0;
+const bson_1 = require("./bson");
+const execute_operation_1 = require("./operations/execute_operation");
+const list_databases_1 = require("./operations/list_databases");
+const remove_user_1 = require("./operations/remove_user");
+const run_command_1 = require("./operations/run_command");
+const validate_collection_1 = require("./operations/validate_collection");
+/**
+ * The **Admin** class is an internal class that allows convenient access to
+ * the admin functionality and commands for MongoDB.
+ *
+ * **ADMIN Cannot directly be instantiated**
+ * @public
+ *
+ * @example
+ * ```ts
+ * import { MongoClient } from 'mongodb';
+ *
+ * const client = new MongoClient('mongodb://localhost:27017');
+ * const admin = client.db().admin();
+ * const dbInfo = await admin.listDatabases();
+ * for (const db of dbInfo.databases) {
+ *   console.log(db.name);
+ * }
+ * ```
+ */
+class Admin {
+    /**
+     * Create a new Admin instance
+     * @internal
+     */
+    constructor(db) {
+        this.s = { db };
+    }
+    /**
+     * Execute a command
+     *
+     * The driver will ensure the following fields are attached to the command sent to the server:
+     * - `lsid` - sourced from an implicit session or options.session
+     * - `$readPreference` - defaults to primary or can be configured by options.readPreference
+     * - `$db` - sourced from the name of this database
+     *
+     * If the client has a serverApi setting:
+     * - `apiVersion`
+     * - `apiStrict`
+     * - `apiDeprecationErrors`
+     *
+     * When in a transaction:
+     * - `readConcern` - sourced from readConcern set on the TransactionOptions
+     * - `writeConcern` - sourced from writeConcern set on the TransactionOptions
+     *
+     * Attaching any of the above fields to the command will have no effect as the driver will overwrite the value.
+     *
+     * @param command - The command to execute
+     * @param options - Optional settings for the command
+     */
+    async command(command, options) {
+        return await (0, execute_operation_1.executeOperation)(this.s.db.client, new run_command_1.RunAdminCommandOperation(command, {
+            ...(0, bson_1.resolveBSONOptions)(options),
+            session: options?.session,
+            readPreference: options?.readPreference,
+            timeoutMS: options?.timeoutMS ?? this.s.db.timeoutMS
+        }));
+    }
+    /**
+     * Retrieve the server build information
+     *
+     * @param options - Optional settings for the command
+     */
+    async buildInfo(options) {
+        return await this.command({ buildinfo: 1 }, options);
+    }
+    /**
+     * Retrieve the server build information
+     *
+     * @param options - Optional settings for the command
+     */
+    async serverInfo(options) {
+        return await this.command({ buildinfo: 1 }, options);
+    }
+    /**
+     * Retrieve this db's server status.
+     *
+     * @param options - Optional settings for the command
+     */
+    async serverStatus(options) {
+        return await this.command({ serverStatus: 1 }, options);
+    }
+    /**
+     * Ping the MongoDB server and retrieve results
+     *
+     * @param options - Optional settings for the command
+     */
+    async ping(options) {
+        return await this.command({ ping: 1 }, options);
+    }
+    /**
+     * Remove a user from a database
+     *
+     * @param username - The username to remove
+     * @param options - Optional settings for the command
+     */
+    async removeUser(username, options) {
+        return await (0, execute_operation_1.executeOperation)(this.s.db.client, new remove_user_1.RemoveUserOperation(this.s.db, username, { dbName: 'admin', ...options }));
+    }
+    /**
+     * Validate an existing collection
+     *
+     * @param collectionName - The name of the collection to validate.
+     * @param options - Optional settings for the command
+     */
+    async validateCollection(collectionName, options = {}) {
+        return await (0, execute_operation_1.executeOperation)(this.s.db.client, new validate_collection_1.ValidateCollectionOperation(this, collectionName, options));
+    }
+    /**
+     * List the available databases
+     *
+     * @param options - Optional settings for the command
+     */
+    async listDatabases(options) {
+        return await (0, execute_operation_1.executeOperation)(this.s.db.client, new list_databases_1.ListDatabasesOperation(this.s.db, { timeoutMS: this.s.db.timeoutMS, ...options }));
+    }
+    /**
+     * Get ReplicaSet status
+     *
+     * @param options - Optional settings for the command
+     */
+    async replSetGetStatus(options) {
+        return await this.command({ replSetGetStatus: 1 }, options);
+    }
+}
+exports.Admin = Admin;
+//# sourceMappingURL=admin.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/admin.js.map b/backend/node_modules/mongodb/lib/admin.js.map
new file mode 100644
index 0000000..71bf108
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/admin.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/beta.d.ts b/backend/node_modules/mongodb/lib/beta.d.ts
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+import type { DeserializeOptions } from 'bson';
+import type { ObjectIdLike } from 'bson';
+import type { SerializeOptions } from 'bson';
+import { Binary } from 'bson';
+import { BSON } from 'bson';
+import { BSONRegExp } from 'bson';
+import { BSONSymbol } from 'bson';
+import { BSONType } from 'bson';
+import { Code } from 'bson';
+import { DBRef } from 'bson';
+import { Decimal128 } from 'bson';
+import { deserialize } from 'bson';
+import { Document } from 'bson';
+import { Double } from 'bson';
+import { Int32 } from 'bson';
+import { Long } from 'bson';
+import { MaxKey } from 'bson';
+import { MinKey } from 'bson';
+import { ObjectId } from 'bson';
+import { serialize } from 'bson';
+import { Timestamp } from 'bson';
+import { UUID } from 'bson';
+import type { SrvRecord } from 'dns';
+import { EventEmitter } from 'events';
+import type { Socket } from 'net';
+import type { TcpNetConnectOpts } from 'net';
+import { Readable } from 'stream';
+import { Writable } from 'stream';
+import type { ConnectionOptions as ConnectionOptions_2 } from 'tls';
+import type { TLSSocket } from 'tls';
+import type { TLSSocketOptions } from 'tls';
+
+/** @public */
+export declare abstract class AbstractCursor<TSchema = any, CursorEvents extends AbstractCursorEvents = AbstractCursorEvents> extends TypedEventEmitter<CursorEvents> implements AsyncDisposable_2 {
+    /* Excluded from this release type: cursorId */
+    /* Excluded from this release type: cursorSession */
+    /* Excluded from this release type: selectedServer */
+    /* Excluded from this release type: cursorNamespace */
+    /* Excluded from this release type: documents */
+    /* Excluded from this release type: cursorClient */
+    /* Excluded from this release type: transform */
+    /* Excluded from this release type: initialized */
+    /* Excluded from this release type: isClosed */
+    /* Excluded from this release type: isKilled */
+    /* Excluded from this release type: cursorOptions */
+    /* Excluded from this release type: timeoutContext */
+    /** @event */
+    static readonly CLOSE: "close";
+    /* Excluded from this release type: deserializationOptions */
+    /* Excluded from this release type: __constructor */
+    /**
+     * The cursor has no id until it receives a response from the initial cursor creating command.
+     *
+     * It is non-zero for as long as the database has an open cursor.
+     *
+     * The initiating command may receive a zero id if the entire result is in the `firstBatch`.
+     */
+    get id(): Long | undefined;
+    /* Excluded from this release type: isDead */
+    /* Excluded from this release type: client */
+    /* Excluded from this release type: server */
+    get namespace(): MongoDBNamespace;
+    get readPreference(): ReadPreference;
+    get readConcern(): ReadConcern | undefined;
+    /* Excluded from this release type: session */
+    /* Excluded from this release type: session */
+    /**
+     * The cursor is closed and all remaining locally buffered documents have been iterated.
+     */
+    get closed(): boolean;
+    /**
+     * A `killCursors` command was attempted on this cursor.
+     * This is performed if the cursor id is non zero.
+     */
+    get killed(): boolean;
+    get loadBalanced(): boolean;
+    /**
+     * @beta
+     * @experimental
+     * An alias for {@link AbstractCursor.close|AbstractCursor.close()}.
+     */
+    [Symbol.asyncDispose]: () => Promise<void>;
+    /* Excluded from this release type: asyncDispose */
+    /** Returns current buffered documents length */
+    bufferedCount(): number;
+    /** Returns current buffered documents */
+    readBufferedDocuments(number?: number): NonNullable<TSchema>[];
+    [Symbol.asyncIterator](): AsyncGenerator<TSchema, void, void>;
+    stream(options?: CursorStreamOptions): Readable & AsyncIterable<TSchema>;
+    hasNext(): Promise<boolean>;
+    /** Get the next available document from the cursor, returns null if no more documents are available. */
+    next(): Promise<TSchema | null>;
+    /**
+     * Try to get the next available document from the cursor or `null` if an empty batch is returned
+     */
+    tryNext(): Promise<TSchema | null>;
+    /**
+     * Iterates over all the documents for this cursor using the iterator, callback pattern.
+     *
+     * If the iterator returns `false`, iteration will stop.
+     *
+     * @param iterator - The iteration callback.
+     * @deprecated - Will be removed in a future release. Use for await...of instead.
+     */
+    forEach(iterator: (doc: TSchema) => boolean | void): Promise<void>;
+    /**
+     * Frees any client-side resources used by the cursor.
+     */
+    close(options?: {
+        timeoutMS?: number;
+    }): Promise<void>;
+    /**
+     * Returns an array of documents. The caller is responsible for making sure that there
+     * is enough memory to store the results. Note that the array only contains partial
+     * results when this cursor had been previously accessed. In that case,
+     * cursor.rewind() can be used to reset the cursor.
+     */
+    toArray(): Promise<TSchema[]>;
+    /**
+     * Add a cursor flag to the cursor
+     *
+     * @param flag - The flag to set, must be one of following ['tailable', 'oplogReplay', 'noCursorTimeout', 'awaitData', 'partial' -.
+     * @param value - The flag boolean value.
+     */
+    addCursorFlag(flag: CursorFlag, value: boolean): this;
+    /**
+     * Map all documents using the provided function
+     * If there is a transform set on the cursor, that will be called first and the result passed to
+     * this function's transform.
+     *
+     * @remarks
+     *
+     * **Note** Cursors use `null` internally to indicate that there are no more documents in the cursor. Providing a mapping
+     * function that maps values to `null` will result in the cursor closing itself before it has finished iterating
+     * all documents.  This will **not** result in a memory leak, just surprising behavior.  For example:
+     *
+     * ```typescript
+     * const cursor = collection.find({});
+     * cursor.map(() => null);
+     *
+     * const documents = await cursor.toArray();
+     * // documents is always [], regardless of how many documents are in the collection.
+     * ```
+     *
+     * Other falsey values are allowed:
+     *
+     * ```typescript
+     * const cursor = collection.find({});
+     * cursor.map(() => '');
+     *
+     * const documents = await cursor.toArray();
+     * // documents is now an array of empty strings
+     * ```
+     *
+     * **Note for Typescript Users:** adding a transform changes the return type of the iteration of this cursor,
+     * it **does not** return a new instance of a cursor. This means when calling map,
+     * you should always assign the result to a new variable in order to get a correctly typed cursor variable.
+     * Take note of the following example:
+     *
+     * @example
+     * ```typescript
+     * const cursor: FindCursor<Document> = coll.find();
+     * const mappedCursor: FindCursor<number> = cursor.map(doc => Object.keys(doc).length);
+     * const keyCounts: number[] = await mappedCursor.toArray(); // cursor.toArray() still returns Document[]
+     * ```
+     * @param transform - The mapping transformation method.
+     */
+    map<T = any>(transform: (doc: TSchema) => T): AbstractCursor<T>;
+    /**
+     * Set the ReadPreference for the cursor.
+     *
+     * @param readPreference - The new read preference for the cursor.
+     */
+    withReadPreference(readPreference: ReadPreferenceLike): this;
+    /**
+     * Set the ReadPreference for the cursor.
+     *
+     * @param readPreference - The new read preference for the cursor.
+     */
+    withReadConcern(readConcern: ReadConcernLike): this;
+    /**
+     * Set a maxTimeMS on the cursor query, allowing for hard timeout limits on queries (Only supported on MongoDB 2.6 or higher)
+     *
+     * @param value - Number of milliseconds to wait before aborting the query.
+     */
+    maxTimeMS(value: number): this;
+    /**
+     * Set the batch size for the cursor.
+     *
+     * @param value - The number of documents to return per batch. See {@link https://www.mongodb.com/docs/manual/reference/command/find/|find command documentation}.
+     */
+    batchSize(value: number): this;
+    /**
+     * Rewind this cursor to its uninitialized state. Any options that are present on the cursor will
+     * remain in effect. Iterating this cursor will cause new queries to be sent to the server, even
+     * if the resultant data has already been retrieved by this cursor.
+     */
+    rewind(): void;
+    /**
+     * Returns a new uninitialized copy of this cursor, with options matching those that have been set on the current instance
+     */
+    abstract clone(): AbstractCursor<TSchema>;
+    /* Excluded from this release type: _initialize */
+    /* Excluded from this release type: getMore */
+    /* Excluded from this release type: cursorInit */
+    /* Excluded from this release type: fetchBatch */
+    /* Excluded from this release type: cleanup */
+    /* Excluded from this release type: hasEmittedClose */
+    /* Excluded from this release type: emitClose */
+    /* Excluded from this release type: transformDocument */
+    /* Excluded from this release type: throwIfInitialized */
+}
+
+/** @public */
+export declare type AbstractCursorEvents = {
+    [AbstractCursor.CLOSE](): void;
+};
+
+/** @public */
+export declare interface AbstractCursorOptions extends BSONSerializeOptions {
+    session?: ClientSession;
+    readPreference?: ReadPreferenceLike;
+    readConcern?: ReadConcernLike;
+    /**
+     * Specifies the number of documents to return in each response from MongoDB
+     */
+    batchSize?: number;
+    /**
+     * When applicable `maxTimeMS` controls the amount of time the initial command
+     * that constructs a cursor should take. (ex. find, aggregate, listCollections)
+     */
+    maxTimeMS?: number;
+    /**
+     * When applicable `maxAwaitTimeMS` controls the amount of time subsequent getMores
+     * that a cursor uses to fetch more data should take. (ex. cursor.next())
+     */
+    maxAwaitTimeMS?: number;
+    /**
+     * Comment to apply to the operation.
+     *
+     * In server versions pre-4.4, 'comment' must be string.  A server
+     * error will be thrown if any other type is provided.
+     *
+     * In server versions 4.4 and above, 'comment' can be any valid BSON type.
+     */
+    comment?: unknown;
+    /**
+     * By default, MongoDB will automatically close a cursor when the
+     * client has exhausted all results in the cursor. However, for [capped collections](https://www.mongodb.com/docs/manual/core/capped-collections)
+     * you may use a Tailable Cursor that remains open after the client exhausts
+     * the results in the initial cursor.
+     */
+    tailable?: boolean;
+    /**
+     * If awaitData is set to true, when the cursor reaches the end of the capped collection,
+     * MongoDB blocks the query thread for a period of time waiting for new data to arrive.
+     * When new data is inserted into the capped collection, the blocked thread is signaled
+     * to wake up and return the next batch to the client.
+     */
+    awaitData?: boolean;
+    noCursorTimeout?: boolean;
+    /** Specifies the time an operation will run until it throws a timeout error. See {@link AbstractCursorOptions.timeoutMode} for more details on how this option applies to cursors. */
+    timeoutMS?: number;
+    /**
+     * @public
+     * @experimental
+     * Specifies how `timeoutMS` is applied to the cursor. Can be either `'cursorLifeTime'` or `'iteration'`
+     * When set to `'iteration'`, the deadline specified by `timeoutMS` applies to each call of
+     * `cursor.next()`.
+     * When set to `'cursorLifetime'`, the deadline applies to the life of the entire cursor.
+     *
+     * Depending on the type of cursor being used, this option has different default values.
+     * For non-tailable cursors, this value defaults to `'cursorLifetime'`
+     * For tailable cursors, this value defaults to `'iteration'` since tailable cursors, by
+     * definition can have an arbitrarily long lifetime.
+     *
+     * @example
+     * ```ts
+     * const cursor = collection.find({}, {timeoutMS: 100, timeoutMode: 'iteration'});
+     * for await (const doc of cursor) {
+     *  // process doc
+     *  // This will throw a timeout error if any of the iterator's `next()` calls takes more than 100ms, but
+     *  // will continue to iterate successfully otherwise, regardless of the number of batches.
+     * }
+     * ```
+     *
+     * @example
+     * ```ts
+     * const cursor = collection.find({}, { timeoutMS: 1000, timeoutMode: 'cursorLifetime' });
+     * const docs = await cursor.toArray(); // This entire line will throw a timeout error if all batches are not fetched and returned within 1000ms.
+     * ```
+     */
+    timeoutMode?: CursorTimeoutMode;
+    /* Excluded from this release type: timeoutContext */
+}
+
+/* Excluded from this release type: AbstractOperation */
+
+/** @public */
+export declare type AcceptedFields<TSchema, FieldType, AssignableType> = {
+    readonly [key in KeysOfAType<TSchema, FieldType>]?: AssignableType;
+};
+
+/** @public */
+export declare type AddToSetOperators<Type> = {
+    $each?: Array<Flatten<Type>>;
+};
+
+/**
+ * The **Admin** class is an internal class that allows convenient access to
+ * the admin functionality and commands for MongoDB.
+ *
+ * **ADMIN Cannot directly be instantiated**
+ * @public
+ *
+ * @example
+ * ```ts
+ * import { MongoClient } from 'mongodb';
+ *
+ * const client = new MongoClient('mongodb://localhost:27017');
+ * const admin = client.db().admin();
+ * const dbInfo = await admin.listDatabases();
+ * for (const db of dbInfo.databases) {
+ *   console.log(db.name);
+ * }
+ * ```
+ */
+export declare class Admin {
+    /* Excluded from this release type: s */
+    /* Excluded from this release type: __constructor */
+    /**
+     * Execute a command
+     *
+     * The driver will ensure the following fields are attached to the command sent to the server:
+     * - `lsid` - sourced from an implicit session or options.session
+     * - `$readPreference` - defaults to primary or can be configured by options.readPreference
+     * - `$db` - sourced from the name of this database
+     *
+     * If the client has a serverApi setting:
+     * - `apiVersion`
+     * - `apiStrict`
+     * - `apiDeprecationErrors`
+     *
+     * When in a transaction:
+     * - `readConcern` - sourced from readConcern set on the TransactionOptions
+     * - `writeConcern` - sourced from writeConcern set on the TransactionOptions
+     *
+     * Attaching any of the above fields to the command will have no effect as the driver will overwrite the value.
+     *
+     * @param command - The command to execute
+     * @param options - Optional settings for the command
+     */
+    command(command: Document, options?: RunCommandOptions): Promise<Document>;
+    /**
+     * Retrieve the server build information
+     *
+     * @param options - Optional settings for the command
+     */
+    buildInfo(options?: CommandOperationOptions): Promise<Document>;
+    /**
+     * Retrieve the server build information
+     *
+     * @param options - Optional settings for the command
+     */
+    serverInfo(options?: CommandOperationOptions): Promise<Document>;
+    /**
+     * Retrieve this db's server status.
+     *
+     * @param options - Optional settings for the command
+     */
+    serverStatus(options?: CommandOperationOptions): Promise<Document>;
+    /**
+     * Ping the MongoDB server and retrieve results
+     *
+     * @param options - Optional settings for the command
+     */
+    ping(options?: CommandOperationOptions): Promise<Document>;
+    /**
+     * Remove a user from a database
+     *
+     * @param username - The username to remove
+     * @param options - Optional settings for the command
+     */
+    removeUser(username: string, options?: RemoveUserOptions): Promise<boolean>;
+    /**
+     * Validate an existing collection
+     *
+     * @param collectionName - The name of the collection to validate.
+     * @param options - Optional settings for the command
+     */
+    validateCollection(collectionName: string, options?: ValidateCollectionOptions): Promise<Document>;
+    /**
+     * List the available databases
+     *
+     * @param options - Optional settings for the command
+     */
+    listDatabases(options?: ListDatabasesOptions): Promise<ListDatabasesResult>;
+    /**
+     * Get ReplicaSet status
+     *
+     * @param options - Optional settings for the command
+     */
+    replSetGetStatus(options?: CommandOperationOptions): Promise<Document>;
+}
+
+/* Excluded from this release type: AdminPrivate */
+
+/* Excluded from this release type: AggregateOperation */
+
+/** @public */
+export declare interface AggregateOptions extends Omit<CommandOperationOptions, 'explain'> {
+    /** allowDiskUse lets the server know if it can use disk to store temporary results for the aggregation (requires mongodb 2.6 \>). */
+    allowDiskUse?: boolean;
+    /** The number of documents to return per batch. See [aggregation documentation](https://www.mongodb.com/docs/manual/reference/command/aggregate). */
+    batchSize?: number;
+    /** Allow driver to bypass schema validation. */
+    bypassDocumentValidation?: boolean;
+    /** Return the query as cursor, on 2.6 \> it returns as a real cursor on pre 2.6 it returns as an emulated cursor. */
+    cursor?: Document;
+    /**
+     * Specifies a cumulative time limit in milliseconds for processing operations on the cursor. MongoDB interrupts the operation at the earliest following interrupt point.
+     */
+    maxTimeMS?: number;
+    /** The maximum amount of time for the server to wait on new documents to satisfy a tailable cursor query. */
+    maxAwaitTimeMS?: number;
+    /** Specify collation. */
+    collation?: CollationOptions;
+    /** Add an index selection hint to an aggregation command */
+    hint?: Hint;
+    /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+    let?: Document;
+    out?: string;
+    /**
+     * Specifies the verbosity mode for the explain output.
+     * @deprecated This API is deprecated in favor of `collection.aggregate().explain()`
+     * or `db.aggregate().explain()`.
+     */
+    explain?: ExplainOptions['explain'];
+    /* Excluded from this release type: timeoutMode */
+}
+
+/**
+ * The **AggregationCursor** class is an internal class that embodies an aggregation cursor on MongoDB
+ * allowing for iteration over the results returned from the underlying query. It supports
+ * one by one document iteration, conversion to an array or can be iterated as a Node 4.X
+ * or higher stream
+ * @public
+ */
+export declare class AggregationCursor<TSchema = any> extends ExplainableCursor<TSchema> {
+    readonly pipeline: Document[];
+    /* Excluded from this release type: aggregateOptions */
+    /* Excluded from this release type: __constructor */
+    clone(): AggregationCursor<TSchema>;
+    map<T>(transform: (doc: TSchema) => T): AggregationCursor<T>;
+    /* Excluded from this release type: _initialize */
+    /** Execute the explain for the cursor */
+    explain(): Promise<Document>;
+    explain(verbosity: ExplainVerbosityLike | ExplainCommandOptions): Promise<Document>;
+    explain(options: {
+        timeoutMS?: number;
+    }): Promise<Document>;
+    explain(verbosity: ExplainVerbosityLike | ExplainCommandOptions, options: {
+        timeoutMS?: number;
+    }): Promise<Document>;
+    /** Add a stage to the aggregation pipeline
+     * @example
+     * ```
+     * const documents = await users.aggregate().addStage({ $match: { name: /Mike/ } }).toArray();
+     * ```
+     * @example
+     * ```
+     * const documents = await users.aggregate()
+     *   .addStage<{ name: string }>({ $project: { name: true } })
+     *   .toArray(); // type of documents is { name: string }[]
+     * ```
+     */
+    addStage(stage: Document): this;
+    addStage<T = Document>(stage: Document): AggregationCursor<T>;
+    /** Add a group stage to the aggregation pipeline */
+    group<T = TSchema>($group: Document): AggregationCursor<T>;
+    /** Add a limit stage to the aggregation pipeline */
+    limit($limit: number): this;
+    /** Add a match stage to the aggregation pipeline */
+    match($match: Document): this;
+    /** Add an out stage to the aggregation pipeline */
+    out($out: {
+        db: string;
+        coll: string;
+    } | string): this;
+    /**
+     * Add a project stage to the aggregation pipeline
+     *
+     * @remarks
+     * In order to strictly type this function you must provide an interface
+     * that represents the effect of your projection on the result documents.
+     *
+     * By default chaining a projection to your cursor changes the returned type to the generic {@link Document} type.
+     * You should specify a parameterized type to have assertions on your final results.
+     *
+     * @example
+     * ```typescript
+     * // Best way
+     * const docs: AggregationCursor<{ a: number }> = cursor.project<{ a: number }>({ _id: 0, a: true });
+     * // Flexible way
+     * const docs: AggregationCursor<Document> = cursor.project({ _id: 0, a: true });
+     * ```
+     *
+     * @remarks
+     * In order to strictly type this function you must provide an interface
+     * that represents the effect of your projection on the result documents.
+     *
+     * **Note for Typescript Users:** adding a transform changes the return type of the iteration of this cursor,
+     * it **does not** return a new instance of a cursor. This means when calling project,
+     * you should always assign the result to a new variable in order to get a correctly typed cursor variable.
+     * Take note of the following example:
+     *
+     * @example
+     * ```typescript
+     * const cursor: AggregationCursor<{ a: number; b: string }> = coll.aggregate([]);
+     * const projectCursor = cursor.project<{ a: number }>({ _id: 0, a: true });
+     * const aPropOnlyArray: {a: number}[] = await projectCursor.toArray();
+     *
+     * // or always use chaining and save the final cursor
+     *
+     * const cursor = coll.aggregate().project<{ a: string }>({
+     *   _id: 0,
+     *   a: { $convert: { input: '$a', to: 'string' }
+     * }});
+     * ```
+     */
+    project<T extends Document = Document>($project: Document): AggregationCursor<T>;
+    /** Add a lookup stage to the aggregation pipeline */
+    lookup($lookup: Document): this;
+    /** Add a redact stage to the aggregation pipeline */
+    redact($redact: Document): this;
+    /** Add a skip stage to the aggregation pipeline */
+    skip($skip: number): this;
+    /** Add a sort stage to the aggregation pipeline */
+    sort($sort: Sort): this;
+    /** Add a unwind stage to the aggregation pipeline */
+    unwind($unwind: Document | string): this;
+    /** Add a geoNear stage to the aggregation pipeline */
+    geoNear($geoNear: Document): this;
+}
+
+/** @public */
+export declare interface AggregationCursorOptions extends AbstractCursorOptions, AggregateOptions {
+}
+
+/**
+ * It is possible to search using alternative types in mongodb e.g.
+ * string types can be searched using a regex in mongo
+ * array types can be searched using their element type
+ * @public
+ */
+export declare type AlternativeType<T> = T extends ReadonlyArray<infer U> ? T | RegExpOrString<U> : RegExpOrString<T>;
+
+/** @public */
+export declare type AnyBulkWriteOperation<TSchema extends Document = Document> = {
+    insertOne: InsertOneModel<TSchema>;
+} | {
+    replaceOne: ReplaceOneModel<TSchema>;
+} | {
+    updateOne: UpdateOneModel<TSchema>;
+} | {
+    updateMany: UpdateManyModel<TSchema>;
+} | {
+    deleteOne: DeleteOneModel<TSchema>;
+} | {
+    deleteMany: DeleteManyModel<TSchema>;
+};
+
+/**
+ * Used to represent any of the client bulk write models that can be passed as an array
+ * to MongoClient#bulkWrite.
+ * @public
+ */
+export declare type AnyClientBulkWriteModel<TSchema extends Document> = ClientInsertOneModel<TSchema> | ClientReplaceOneModel<TSchema> | ClientUpdateOneModel<TSchema> | ClientUpdateManyModel<TSchema> | ClientDeleteOneModel<TSchema> | ClientDeleteManyModel<TSchema>;
+
+/** @public */
+export declare type AnyError = MongoError | Error;
+
+/** @public */
+export declare type ArrayElement<Type> = Type extends ReadonlyArray<infer Item> ? Item : never;
+
+/** @public */
+export declare type ArrayOperator<Type> = {
+    $each?: Array<Flatten<Type>>;
+    $slice?: number;
+    $position?: number;
+    $sort?: Sort;
+};
+
+/**
+ * @public
+ */
+declare interface AsyncDisposable_2 {
+    /**
+     * @beta
+     * @experimental
+     */
+    [Symbol.asyncDispose](): Promise<void>;
+    /* Excluded from this release type: asyncDispose */
+}
+export { AsyncDisposable_2 as AsyncDisposable }
+
+/** @public */
+export declare interface Auth {
+    /** The username for auth */
+    username?: string;
+    /** The password for auth */
+    password?: string;
+}
+
+/* Excluded from this release type: AuthContext */
+
+/** @public */
+export declare const AuthMechanism: Readonly<{
+    readonly MONGODB_AWS: "MONGODB-AWS";
+    readonly MONGODB_CR: "MONGODB-CR";
+    readonly MONGODB_DEFAULT: "DEFAULT";
+    readonly MONGODB_GSSAPI: "GSSAPI";
+    readonly MONGODB_PLAIN: "PLAIN";
+    readonly MONGODB_SCRAM_SHA1: "SCRAM-SHA-1";
+    readonly MONGODB_SCRAM_SHA256: "SCRAM-SHA-256";
+    readonly MONGODB_X509: "MONGODB-X509";
+    readonly MONGODB_OIDC: "MONGODB-OIDC";
+}>;
+
+/** @public */
+export declare type AuthMechanism = (typeof AuthMechanism)[keyof typeof AuthMechanism];
+
+/** @public */
+export declare interface AuthMechanismProperties extends Document {
+    SERVICE_HOST?: string;
+    SERVICE_NAME?: string;
+    SERVICE_REALM?: string;
+    CANONICALIZE_HOST_NAME?: GSSAPICanonicalizationValue;
+    AWS_SESSION_TOKEN?: string;
+    /** A user provided OIDC machine callback function. */
+    OIDC_CALLBACK?: OIDCCallbackFunction;
+    /** A user provided OIDC human interacted callback function. */
+    OIDC_HUMAN_CALLBACK?: OIDCCallbackFunction;
+    /** The OIDC environment. Note that 'test' is for internal use only. */
+    ENVIRONMENT?: 'test' | 'azure' | 'gcp' | 'k8s';
+    /** Allowed hosts that OIDC auth can connect to. */
+    ALLOWED_HOSTS?: string[];
+    /** The resource token for OIDC auth in Azure and GCP. */
+    TOKEN_RESOURCE?: string;
+}
+
+/* Excluded from this release type: AuthProvider */
+
+/* Excluded from this release type: AutoEncrypter */
+
+/**
+ * @public
+ *
+ * Extra options related to the mongocryptd process
+ * \* _Available in MongoDB 6.0 or higher._
+ */
+export declare type AutoEncryptionExtraOptions = NonNullable<AutoEncryptionOptions['extraOptions']>;
+
+/** @public */
+export declare const AutoEncryptionLoggerLevel: Readonly<{
+    readonly FatalError: 0;
+    readonly Error: 1;
+    readonly Warning: 2;
+    readonly Info: 3;
+    readonly Trace: 4;
+}>;
+
+/**
+ * @public
+ * The level of severity of the log message
+ *
+ * | Value | Level |
+ * |-------|-------|
+ * | 0 | Fatal Error |
+ * | 1 | Error |
+ * | 2 | Warning |
+ * | 3 | Info |
+ * | 4 | Trace |
+ */
+export declare type AutoEncryptionLoggerLevel = (typeof AutoEncryptionLoggerLevel)[keyof typeof AutoEncryptionLoggerLevel];
+
+/** @public */
+export declare interface AutoEncryptionOptions {
+    /* Excluded from this release type: metadataClient */
+    /** A `MongoClient` used to fetch keys from a key vault */
+    keyVaultClient?: MongoClient;
+    /** The namespace where keys are stored in the key vault */
+    keyVaultNamespace?: string;
+    /** Configuration options that are used by specific KMS providers during key generation, encryption, and decryption. */
+    kmsProviders?: KMSProviders;
+    /**
+     * A map of namespaces to a local JSON schema for encryption
+     *
+     * **NOTE**: Supplying options.schemaMap provides more security than relying on JSON Schemas obtained from the server.
+     * It protects against a malicious server advertising a false JSON Schema, which could trick the client into sending decrypted data that should be encrypted.
+     * Schemas supplied in the schemaMap only apply to configuring automatic encryption for Client-Side Field Level Encryption.
+     * Other validation rules in the JSON schema will not be enforced by the driver and will result in an error.
+     */
+    schemaMap?: Document;
+    /** Supply a schema for the encrypted fields in the document  */
+    encryptedFieldsMap?: Document;
+    /** Allows the user to bypass auto encryption, maintaining implicit decryption */
+    bypassAutoEncryption?: boolean;
+    /** Allows users to bypass query analysis */
+    bypassQueryAnalysis?: boolean;
+    options?: {
+        /** An optional hook to catch logging messages from the underlying encryption engine */
+        logger?: (level: AutoEncryptionLoggerLevel, message: string) => void;
+    };
+    extraOptions?: {
+        /**
+         * A local process the driver communicates with to determine how to encrypt values in a command.
+         * Defaults to "mongodb://%2Fvar%2Fmongocryptd.sock" if domain sockets are available or "mongodb://localhost:27020" otherwise
+         */
+        mongocryptdURI?: string;
+        /** If true, autoEncryption will not attempt to spawn a mongocryptd before connecting  */
+        mongocryptdBypassSpawn?: boolean;
+        /** The path to the mongocryptd executable on the system */
+        mongocryptdSpawnPath?: string;
+        /** Command line arguments to use when auto-spawning a mongocryptd */
+        mongocryptdSpawnArgs?: string[];
+        /**
+         * Full path to a MongoDB Crypt shared library to be used (instead of mongocryptd).
+         *
+         * This needs to be the path to the file itself, not a directory.
+         * It can be an absolute or relative path. If the path is relative and
+         * its first component is `$ORIGIN`, it will be replaced by the directory
+         * containing the mongodb-client-encryption native addon file. Otherwise,
+         * the path will be interpreted relative to the current working directory.
+         *
+         * Currently, loading different MongoDB Crypt shared library files from different
+         * MongoClients in the same process is not supported.
+         *
+         * If this option is provided and no MongoDB Crypt shared library could be loaded
+         * from the specified location, creating the MongoClient will fail.
+         *
+         * If this option is not provided and `cryptSharedLibRequired` is not specified,
+         * the AutoEncrypter will attempt to spawn and/or use mongocryptd according
+         * to the mongocryptd-specific `extraOptions` options.
+         *
+         * Specifying a path prevents mongocryptd from being used as a fallback.
+         *
+         * Requires the MongoDB Crypt shared library, available in MongoDB 6.0 or higher.
+         */
+        cryptSharedLibPath?: string;
+        /**
+         * If specified, never use mongocryptd and instead fail when the MongoDB Crypt
+         * shared library could not be loaded.
+         *
+         * This is always true when `cryptSharedLibPath` is specified.
+         *
+         * Requires the MongoDB Crypt shared library, available in MongoDB 6.0 or higher.
+         */
+        cryptSharedLibRequired?: boolean;
+        /* Excluded from this release type: cryptSharedLibSearchPaths */
+    };
+    proxyOptions?: ProxyOptions;
+    /** The TLS options to use connecting to the KMS provider */
+    tlsOptions?: CSFLEKMSTlsOptions;
+}
+
+/**
+ * @public
+ * Configuration options for making an AWS encryption key
+ */
+export declare interface AWSEncryptionKeyOptions {
+    /**
+     * The AWS region of the KMS
+     */
+    region: string;
+    /**
+     * The Amazon Resource Name (ARN) to the AWS customer master key (CMK)
+     */
+    key: string;
+    /**
+     * An alternate host to send KMS requests to. May include port number.
+     */
+    endpoint?: string | undefined;
+}
+
+/** @public */
+export declare interface AWSKMSProviderConfiguration {
+    /**
+     * The access key used for the AWS KMS provider
+     */
+    accessKeyId: string;
+    /**
+     * The secret access key used for the AWS KMS provider
+     */
+    secretAccessKey: string;
+    /**
+     * An optional AWS session token that will be used as the
+     * X-Amz-Security-Token header for AWS requests.
+     */
+    sessionToken?: string;
+}
+
+/**
+ * @public
+ * Configuration options for making an Azure encryption key
+ */
+export declare interface AzureEncryptionKeyOptions {
+    /**
+     * Key name
+     */
+    keyName: string;
+    /**
+     * Key vault URL, typically `<name>.vault.azure.net`
+     */
+    keyVaultEndpoint: string;
+    /**
+     * Key version
+     */
+    keyVersion?: string | undefined;
+}
+
+/** @public */
+export declare type AzureKMSProviderConfiguration = {
+    /**
+     * The tenant ID identifies the organization for the account
+     */
+    tenantId: string;
+    /**
+     * The client ID to authenticate a registered application
+     */
+    clientId: string;
+    /**
+     * The client secret to authenticate a registered application
+     */
+    clientSecret: string;
+    /**
+     * If present, a host with optional port. E.g. "example.com" or "example.com:443".
+     * This is optional, and only needed if customer is using a non-commercial Azure instance
+     * (e.g. a government or China account, which use different URLs).
+     * Defaults to "login.microsoftonline.com"
+     */
+    identityPlatformEndpoint?: string | undefined;
+} | {
+    /**
+     * If present, an access token to authenticate with Azure.
+     */
+    accessToken: string;
+};
+
+/**
+ * Keeps the state of a unordered batch so we can rewrite the results
+ * correctly after command execution
+ *
+ * @public
+ */
+export declare class Batch<T = Document> {
+    originalZeroIndex: number;
+    currentIndex: number;
+    originalIndexes: number[];
+    batchType: BatchType;
+    operations: T[];
+    size: number;
+    sizeBytes: number;
+    constructor(batchType: BatchType, originalZeroIndex: number);
+}
+
+/** @public */
+export declare const BatchType: Readonly<{
+    readonly INSERT: 1;
+    readonly UPDATE: 2;
+    readonly DELETE: 3;
+}>;
+
+/** @public */
+export declare type BatchType = (typeof BatchType)[keyof typeof BatchType];
+
+export { Binary }
+
+/** @public */
+export declare type BitwiseFilter = number /** numeric bit mask */ | Binary /** BinData bit mask */ | ReadonlyArray<number>;
+
+export { BSON }
+
+/* Excluded from this release type: BSONElement */
+export { BSONRegExp }
+
+/**
+ * BSON Serialization options.
+ * @public
+ */
+export declare interface BSONSerializeOptions extends Omit<SerializeOptions, 'index'>, Omit<DeserializeOptions, 'evalFunctions' | 'cacheFunctions' | 'cacheFunctionsCrc32' | 'allowObjectSmallerThanBufferSize' | 'index' | 'validation'> {
+    /**
+     * Enabling the raw option will return a [Node.js Buffer](https://nodejs.org/api/buffer.html)
+     * which is allocated using [allocUnsafe API](https://nodejs.org/api/buffer.html#static-method-bufferallocunsafesize).
+     * See this section from the [Node.js Docs here](https://nodejs.org/api/buffer.html#what-makes-bufferallocunsafe-and-bufferallocunsafeslow-unsafe)
+     * for more detail about what "unsafe" refers to in this context.
+     * If you need to maintain your own editable clone of the bytes returned for an extended life time of the process, it is recommended you allocate
+     * your own buffer and clone the contents:
+     *
+     * @example
+     * ```ts
+     * const raw = await collection.findOne({}, { raw: true });
+     * const myBuffer = Buffer.alloc(raw.byteLength);
+     * myBuffer.set(raw, 0);
+     * // Only save and use `myBuffer` beyond this point
+     * ```
+     *
+     * @remarks
+     * Please note there is a known limitation where this option cannot be used at the MongoClient level (see [NODE-3946](https://jira.mongodb.org/browse/NODE-3946)).
+     * It does correctly work at `Db`, `Collection`, and per operation the same as other BSON options work.
+     */
+    raw?: boolean;
+    /** Enable utf8 validation when deserializing BSON documents.  Defaults to true. */
+    enableUtf8Validation?: boolean;
+}
+
+export { BSONSymbol }
+
+export { BSONType }
+
+/** @public */
+export declare type BSONTypeAlias = keyof typeof BSONType;
+
+/* Excluded from this release type: BufferPool */
+
+/** @public */
+export declare abstract class BulkOperationBase {
+    private collection;
+    isOrdered: boolean;
+    /* Excluded from this release type: s */
+    operationId?: number;
+    /* Excluded from this release type: __constructor */
+    /**
+     * Add a single insert document to the bulk operation
+     *
+     * @example
+     * ```ts
+     * const bulkOp = collection.initializeOrderedBulkOp();
+     *
+     * // Adds three inserts to the bulkOp.
+     * bulkOp
+     *   .insert({ a: 1 })
+     *   .insert({ b: 2 })
+     *   .insert({ c: 3 });
+     * await bulkOp.execute();
+     * ```
+     */
+    insert(document: Document): BulkOperationBase;
+    /**
+     * Builds a find operation for an update/updateOne/delete/deleteOne/replaceOne.
+     * Returns a builder object used to complete the definition of the operation.
+     *
+     * @example
+     * ```ts
+     * const bulkOp = collection.initializeOrderedBulkOp();
+     *
+     * // Add an updateOne to the bulkOp
+     * bulkOp.find({ a: 1 }).updateOne({ $set: { b: 2 } });
+     *
+     * // Add an updateMany to the bulkOp
+     * bulkOp.find({ c: 3 }).update({ $set: { d: 4 } });
+     *
+     * // Add an upsert
+     * bulkOp.find({ e: 5 }).upsert().updateOne({ $set: { f: 6 } });
+     *
+     * // Add a deletion
+     * bulkOp.find({ g: 7 }).deleteOne();
+     *
+     * // Add a multi deletion
+     * bulkOp.find({ h: 8 }).delete();
+     *
+     * // Add a replaceOne
+     * bulkOp.find({ i: 9 }).replaceOne({writeConcern: { j: 10 }});
+     *
+     * // Update using a pipeline (requires Mongodb 4.2 or higher)
+     * bulk.find({ k: 11, y: { $exists: true }, z: { $exists: true } }).updateOne([
+     *   { $set: { total: { $sum: [ '$y', '$z' ] } } }
+     * ]);
+     *
+     * // All of the ops will now be executed
+     * await bulkOp.execute();
+     * ```
+     */
+    find(selector: Document): FindOperators;
+    /** Specifies a raw operation to perform in the bulk write. */
+    raw(op: AnyBulkWriteOperation): this;
+    get length(): number;
+    get bsonOptions(): BSONSerializeOptions;
+    get writeConcern(): WriteConcern | undefined;
+    get batches(): Batch[];
+    execute(options?: BulkWriteOptions): Promise<BulkWriteResult>;
+    /* Excluded from this release type: handleWriteError */
+    abstract addToOperationsList(batchType: BatchType, document: Document | UpdateStatement | DeleteStatement): this;
+    private shouldForceServerObjectId;
+}
+
+/* Excluded from this release type: BulkOperationPrivate */
+
+/* Excluded from this release type: BulkResult */
+
+/** @public */
+export declare interface BulkWriteOperationError {
+    index: number;
+    code: number;
+    errmsg: string;
+    errInfo: Document;
+    op: Document | UpdateStatement | DeleteStatement;
+}
+
+/** @public */
+export declare interface BulkWriteOptions extends CommandOperationOptions {
+    /**
+     * Allow driver to bypass schema validation.
+     * @defaultValue `false` - documents will be validated by default
+     **/
+    bypassDocumentValidation?: boolean;
+    /**
+     * If true, when an insert fails, don't execute the remaining writes.
+     * If false, continue with remaining inserts when one fails.
+     * @defaultValue `true` - inserts are ordered by default
+     */
+    ordered?: boolean;
+    /**
+     * Force server to assign _id values instead of driver.
+     * @defaultValue `false` - the driver generates `_id` fields by default
+     **/
+    forceServerObjectId?: boolean;
+    /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+    let?: Document;
+    /* Excluded from this release type: timeoutContext */
+}
+
+/**
+ * @public
+ * The result of a bulk write.
+ */
+export declare class BulkWriteResult {
+    private readonly result;
+    /** Number of documents inserted. */
+    readonly insertedCount: number;
+    /** Number of documents matched for update. */
+    readonly matchedCount: number;
+    /** Number of documents modified. */
+    readonly modifiedCount: number;
+    /** Number of documents deleted. */
+    readonly deletedCount: number;
+    /** Number of documents upserted. */
+    readonly upsertedCount: number;
+    /** Upserted document generated Id's, hash key is the index of the originating operation */
+    readonly upsertedIds: {
+        [key: number]: any;
+    };
+    /** Inserted document generated Id's, hash key is the index of the originating operation */
+    readonly insertedIds: {
+        [key: number]: any;
+    };
+    private static generateIdMap;
+    /* Excluded from this release type: __constructor */
+    /** Evaluates to true if the bulk operation correctly executes */
+    get ok(): number;
+    /* Excluded from this release type: getSuccessfullyInsertedIds */
+    /** Returns the upserted id at the given index */
+    getUpsertedIdAt(index: number): Document | undefined;
+    /** Returns raw internal result */
+    getRawResponse(): Document;
+    /** Returns true if the bulk operation contains a write error */
+    hasWriteErrors(): boolean;
+    /** Returns the number of write errors off the bulk operation */
+    getWriteErrorCount(): number;
+    /** Returns a specific write error object */
+    getWriteErrorAt(index: number): WriteError | undefined;
+    /** Retrieve all write errors */
+    getWriteErrors(): WriteError[];
+    /** Retrieve the write concern error if one exists */
+    getWriteConcernError(): WriteConcernError | undefined;
+    toString(): string;
+    isOk(): boolean;
+}
+
+/**
+ * MongoDB Driver style callback
+ * @public
+ */
+export declare type Callback<T = any> = (error?: AnyError, result?: T) => void;
+
+/** @public */
+export declare class CancellationToken extends TypedEventEmitter<{
+    cancel(): void;
+}> {
+}
+
+/**
+ * Creates a new Change Stream instance. Normally created using {@link Collection#watch|Collection.watch()}.
+ * @public
+ */
+export declare class ChangeStream<TSchema extends Document = Document, TChange extends Document = ChangeStreamDocument<TSchema>> extends TypedEventEmitter<ChangeStreamEvents<TSchema, TChange>> implements AsyncDisposable_2 {
+    /**
+     * @beta
+     * @experimental
+     * An alias for {@link ChangeStream.close|ChangeStream.close()}.
+     */
+    [Symbol.asyncDispose]: () => Promise<void>;
+    /* Excluded from this release type: asyncDispose */
+    pipeline: Document[];
+    /**
+     * @remarks WriteConcern can still be present on the options because
+     * we inherit options from the client/db/collection.  The
+     * key must be present on the options in order to delete it.
+     * This allows typescript to delete the key but will
+     * not allow a writeConcern to be assigned as a property on options.
+     */
+    options: ChangeStreamOptions & {
+        writeConcern?: never;
+    };
+    parent: MongoClient | Db | Collection;
+    namespace: MongoDBNamespace;
+    type: symbol;
+    /* Excluded from this release type: cursor */
+    streamOptions?: CursorStreamOptions;
+    /* Excluded from this release type: [kCursorStream] */
+    /* Excluded from this release type: [kClosed] */
+    /* Excluded from this release type: [kMode] */
+    /** @event */
+    static readonly RESPONSE: "response";
+    /** @event */
+    static readonly MORE: "more";
+    /** @event */
+    static readonly INIT: "init";
+    /** @event */
+    static readonly CLOSE: "close";
+    /**
+     * Fired for each new matching change in the specified namespace. Attaching a `change`
+     * event listener to a Change Stream will switch the stream into flowing mode. Data will
+     * then be passed as soon as it is available.
+     * @event
+     */
+    static readonly CHANGE: "change";
+    /** @event */
+    static readonly END: "end";
+    /** @event */
+    static readonly ERROR: "error";
+    /**
+     * Emitted each time the change stream stores a new resume token.
+     * @event
+     */
+    static readonly RESUME_TOKEN_CHANGED: "resumeTokenChanged";
+    private timeoutContext?;
+    /**
+     * Note that this property is here to uniquely identify a ChangeStream instance as the owner of
+     * the {@link CursorTimeoutContext} instance (see {@link ChangeStream._createChangeStreamCursor}) to ensure
+     * that {@link AbstractCursor.close} does not mutate the timeoutContext.
+     */
+    private contextOwner;
+    /* Excluded from this release type: __constructor */
+    /* Excluded from this release type: cursorStream */
+    /** The cached resume token that is used to resume after the most recently returned change. */
+    get resumeToken(): ResumeToken;
+    /** Check if there is any document still available in the Change Stream */
+    hasNext(): Promise<boolean>;
+    /** Get the next available document from the Change Stream. */
+    next(): Promise<TChange>;
+    /**
+     * Try to get the next available document from the Change Stream's cursor or `null` if an empty batch is returned
+     */
+    tryNext(): Promise<TChange | null>;
+    [Symbol.asyncIterator](): AsyncGenerator<TChange, void, void>;
+    /** Is the cursor closed */
+    get closed(): boolean;
+    /**
+     * Frees the internal resources used by the change stream.
+     */
+    close(): Promise<void>;
+    /**
+     * Return a modified Readable stream including a possible transform method.
+     *
+     * NOTE: When using a Stream to process change stream events, the stream will
+     * NOT automatically resume in the case a resumable error is encountered.
+     *
+     * @throws MongoChangeStreamError if the underlying cursor or the change stream is closed
+     */
+    stream(options?: CursorStreamOptions): Readable & AsyncIterable<TChange>;
+    /* Excluded from this release type: _setIsEmitter */
+    /* Excluded from this release type: _setIsIterator */
+    /* Excluded from this release type: _createChangeStreamCursor */
+    /* Excluded from this release type: _closeEmitterModeWithError */
+    /* Excluded from this release type: _streamEvents */
+    /* Excluded from this release type: _endStream */
+    /* Excluded from this release type: _processChange */
+    /* Excluded from this release type: _processErrorStreamMode */
+    /* Excluded from this release type: _processErrorIteratorMode */
+    private _resume;
+}
+
+/**
+ * Only present when the `showExpandedEvents` flag is enabled.
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/modify/#mongodb-data-modify
+ */
+export declare interface ChangeStreamCollModDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'modify';
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/create/#mongodb-data-create
+ */
+export declare interface ChangeStreamCreateDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'create';
+}
+
+/**
+ * Only present when the `showExpandedEvents` flag is enabled.
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/createIndexes/#mongodb-data-createIndexes
+ */
+export declare interface ChangeStreamCreateIndexDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID, ChangeStreamDocumentOperationDescription {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'createIndexes';
+}
+
+/* Excluded from this release type: ChangeStreamCursor */
+
+/* Excluded from this release type: ChangeStreamCursorOptions */
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/#delete-event
+ */
+export declare interface ChangeStreamDeleteDocument<TSchema extends Document = Document> extends ChangeStreamDocumentCommon, ChangeStreamDocumentKey<TSchema>, ChangeStreamDocumentCollectionUUID {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'delete';
+    /** Namespace the delete event occurred on */
+    ns: ChangeStreamNameSpace;
+    /**
+     * Contains the pre-image of the modified or deleted document if the
+     * pre-image is available for the change event and either 'required' or
+     * 'whenAvailable' was specified for the 'fullDocumentBeforeChange' option
+     * when creating the change stream. If 'whenAvailable' was specified but the
+     * pre-image is unavailable, this will be explicitly set to null.
+     */
+    fullDocumentBeforeChange?: TSchema;
+}
+
+/** @public */
+export declare type ChangeStreamDocument<TSchema extends Document = Document> = ChangeStreamInsertDocument<TSchema> | ChangeStreamUpdateDocument<TSchema> | ChangeStreamReplaceDocument<TSchema> | ChangeStreamDeleteDocument<TSchema> | ChangeStreamDropDocument | ChangeStreamRenameDocument | ChangeStreamDropDatabaseDocument | ChangeStreamInvalidateDocument | ChangeStreamCreateIndexDocument | ChangeStreamCreateDocument | ChangeStreamCollModDocument | ChangeStreamDropIndexDocument | ChangeStreamShardCollectionDocument | ChangeStreamReshardCollectionDocument | ChangeStreamRefineCollectionShardKeyDocument;
+
+/** @public */
+export declare interface ChangeStreamDocumentCollectionUUID {
+    /**
+     * The UUID (Binary subtype 4) of the collection that the operation was performed on.
+     *
+     * Only present when the `showExpandedEvents` flag is enabled.
+     *
+     * **NOTE:** collectionUUID will be converted to a NodeJS Buffer if the promoteBuffers
+     *    flag is enabled.
+     *
+     * @sinceServerVersion 6.1.0
+     */
+    collectionUUID: Binary;
+}
+
+/** @public */
+export declare interface ChangeStreamDocumentCommon {
+    /**
+     * The id functions as an opaque token for use when resuming an interrupted
+     * change stream.
+     */
+    _id: ResumeToken;
+    /**
+     * The timestamp from the oplog entry associated with the event.
+     * For events that happened as part of a multi-document transaction, the associated change stream
+     * notifications will have the same clusterTime value, namely the time when the transaction was committed.
+     * On a sharded cluster, events that occur on different shards can have the same clusterTime but be
+     * associated with different transactions or even not be associated with any transaction.
+     * To identify events for a single transaction, you can use the combination of lsid and txnNumber in the change stream event document.
+     */
+    clusterTime?: Timestamp;
+    /**
+     * The transaction number.
+     * Only present if the operation is part of a multi-document transaction.
+     *
+     * **NOTE:** txnNumber can be a Long if promoteLongs is set to false
+     */
+    txnNumber?: number;
+    /**
+     * The identifier for the session associated with the transaction.
+     * Only present if the operation is part of a multi-document transaction.
+     */
+    lsid?: ServerSessionId;
+    /**
+     * When the change stream's backing aggregation pipeline contains the $changeStreamSplitLargeEvent
+     * stage, events larger than 16MB will be split into multiple events and contain the
+     * following information about which fragment the current event is.
+     */
+    splitEvent?: ChangeStreamSplitEvent;
+}
+
+/** @public */
+export declare interface ChangeStreamDocumentKey<TSchema extends Document = Document> {
+    /**
+     * For unsharded collections this contains a single field `_id`.
+     * For sharded collections, this will contain all the components of the shard key
+     */
+    documentKey: {
+        _id: InferIdType<TSchema>;
+        [shardKey: string]: any;
+    };
+}
+
+/** @public */
+export declare interface ChangeStreamDocumentOperationDescription {
+    /**
+     * An description of the operation.
+     *
+     * Only present when the `showExpandedEvents` flag is enabled.
+     *
+     * @sinceServerVersion 6.1.0
+     */
+    operationDescription?: Document;
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/#dropdatabase-event
+ */
+export declare interface ChangeStreamDropDatabaseDocument extends ChangeStreamDocumentCommon {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'dropDatabase';
+    /** The database dropped */
+    ns: {
+        db: string;
+    };
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/#drop-event
+ */
+export declare interface ChangeStreamDropDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'drop';
+    /** Namespace the drop event occurred on */
+    ns: ChangeStreamNameSpace;
+}
+
+/**
+ * Only present when the `showExpandedEvents` flag is enabled.
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/dropIndexes/#mongodb-data-dropIndexes
+ */
+export declare interface ChangeStreamDropIndexDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID, ChangeStreamDocumentOperationDescription {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'dropIndexes';
+}
+
+/** @public */
+export declare type ChangeStreamEvents<TSchema extends Document = Document, TChange extends Document = ChangeStreamDocument<TSchema>> = {
+    resumeTokenChanged(token: ResumeToken): void;
+    init(response: any): void;
+    more(response?: any): void;
+    response(): void;
+    end(): void;
+    error(error: Error): void;
+    change(change: TChange): void;
+    /**
+     * @remarks Note that the `close` event is currently emitted whenever the internal `ChangeStreamCursor`
+     * instance is closed, which can occur multiple times for a given `ChangeStream` instance.
+     *
+     * TODO(NODE-6434): address this issue in NODE-6434
+     */
+    close(): void;
+};
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/#insert-event
+ */
+export declare interface ChangeStreamInsertDocument<TSchema extends Document = Document> extends ChangeStreamDocumentCommon, ChangeStreamDocumentKey<TSchema>, ChangeStreamDocumentCollectionUUID {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'insert';
+    /** This key will contain the document being inserted */
+    fullDocument: TSchema;
+    /** Namespace the insert event occurred on */
+    ns: ChangeStreamNameSpace;
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/#invalidate-event
+ */
+export declare interface ChangeStreamInvalidateDocument extends ChangeStreamDocumentCommon {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'invalidate';
+}
+
+/** @public */
+export declare interface ChangeStreamNameSpace {
+    db: string;
+    coll: string;
+}
+
+/**
+ * Options that can be passed to a ChangeStream. Note that startAfter, resumeAfter, and startAtOperationTime are all mutually exclusive, and the server will error if more than one is specified.
+ * @public
+ */
+export declare interface ChangeStreamOptions extends Omit<AggregateOptions, 'writeConcern'> {
+    /**
+     * Allowed values: 'updateLookup', 'whenAvailable', 'required'.
+     *
+     * When set to 'updateLookup', the change notification for partial updates
+     * will include both a delta describing the changes to the document as well
+     * as a copy of the entire document that was changed from some time after
+     * the change occurred.
+     *
+     * When set to 'whenAvailable', configures the change stream to return the
+     * post-image of the modified document for replace and update change events
+     * if the post-image for this event is available.
+     *
+     * When set to 'required', the same behavior as 'whenAvailable' except that
+     * an error is raised if the post-image is not available.
+     */
+    fullDocument?: string;
+    /**
+     * Allowed values: 'whenAvailable', 'required', 'off'.
+     *
+     * The default is to not send a value, which is equivalent to 'off'.
+     *
+     * When set to 'whenAvailable', configures the change stream to return the
+     * pre-image of the modified document for replace, update, and delete change
+     * events if it is available.
+     *
+     * When set to 'required', the same behavior as 'whenAvailable' except that
+     * an error is raised if the pre-image is not available.
+     */
+    fullDocumentBeforeChange?: string;
+    /** The maximum amount of time for the server to wait on new documents to satisfy a change stream query. */
+    maxAwaitTimeMS?: number;
+    /**
+     * Allows you to start a changeStream after a specified event.
+     * @see https://www.mongodb.com/docs/manual/changeStreams/#resumeafter-for-change-streams
+     */
+    resumeAfter?: ResumeToken;
+    /**
+     * Similar to resumeAfter, but will allow you to start after an invalidated event.
+     * @see https://www.mongodb.com/docs/manual/changeStreams/#startafter-for-change-streams
+     */
+    startAfter?: ResumeToken;
+    /** Will start the changeStream after the specified operationTime. */
+    startAtOperationTime?: OperationTime;
+    /**
+     * The number of documents to return per batch.
+     * @see https://www.mongodb.com/docs/manual/reference/command/aggregate
+     */
+    batchSize?: number;
+    /**
+     * When enabled, configures the change stream to include extra change events.
+     *
+     * - createIndexes
+     * - dropIndexes
+     * - modify
+     * - create
+     * - shardCollection
+     * - reshardCollection
+     * - refineCollectionShardKey
+     */
+    showExpandedEvents?: boolean;
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/refineCollectionShardKey/#mongodb-data-refineCollectionShardKey
+ */
+export declare interface ChangeStreamRefineCollectionShardKeyDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID, ChangeStreamDocumentOperationDescription {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'refineCollectionShardKey';
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/#rename-event
+ */
+export declare interface ChangeStreamRenameDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'rename';
+    /** The new name for the `ns.coll` collection */
+    to: {
+        db: string;
+        coll: string;
+    };
+    /** The "from" namespace that the rename occurred on */
+    ns: ChangeStreamNameSpace;
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/#replace-event
+ */
+export declare interface ChangeStreamReplaceDocument<TSchema extends Document = Document> extends ChangeStreamDocumentCommon, ChangeStreamDocumentKey<TSchema> {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'replace';
+    /** The fullDocument of a replace event represents the document after the insert of the replacement document */
+    fullDocument: TSchema;
+    /** Namespace the replace event occurred on */
+    ns: ChangeStreamNameSpace;
+    /**
+     * Contains the pre-image of the modified or deleted document if the
+     * pre-image is available for the change event and either 'required' or
+     * 'whenAvailable' was specified for the 'fullDocumentBeforeChange' option
+     * when creating the change stream. If 'whenAvailable' was specified but the
+     * pre-image is unavailable, this will be explicitly set to null.
+     */
+    fullDocumentBeforeChange?: TSchema;
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/reshardCollection/#mongodb-data-reshardCollection
+ */
+export declare interface ChangeStreamReshardCollectionDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID, ChangeStreamDocumentOperationDescription {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'reshardCollection';
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/shardCollection/#mongodb-data-shardCollection
+ */
+export declare interface ChangeStreamShardCollectionDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID, ChangeStreamDocumentOperationDescription {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'shardCollection';
+}
+
+/** @public */
+export declare interface ChangeStreamSplitEvent {
+    /** Which fragment of the change this is. */
+    fragment: number;
+    /** The total number of fragments. */
+    of: number;
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/#update-event
+ */
+export declare interface ChangeStreamUpdateDocument<TSchema extends Document = Document> extends ChangeStreamDocumentCommon, ChangeStreamDocumentKey<TSchema>, ChangeStreamDocumentCollectionUUID {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'update';
+    /**
+     * This is only set if `fullDocument` is set to `'updateLookup'`
+     * Contains the point-in-time post-image of the modified document if the
+     * post-image is available and either 'required' or 'whenAvailable' was
+     * specified for the 'fullDocument' option when creating the change stream.
+     */
+    fullDocument?: TSchema;
+    /** Contains a description of updated and removed fields in this operation */
+    updateDescription: UpdateDescription<TSchema>;
+    /** Namespace the update event occurred on */
+    ns: ChangeStreamNameSpace;
+    /**
+     * Contains the pre-image of the modified or deleted document if the
+     * pre-image is available for the change event and either 'required' or
+     * 'whenAvailable' was specified for the 'fullDocumentBeforeChange' option
+     * when creating the change stream. If 'whenAvailable' was specified but the
+     * pre-image is unavailable, this will be explicitly set to null.
+     */
+    fullDocumentBeforeChange?: TSchema;
+}
+
+/** @public */
+export declare interface ClientBulkWriteError {
+    code: number;
+    message: string;
+}
+
+/**
+ * A mapping of namespace strings to collections schemas.
+ * @public
+ *
+ * @example
+ * ```ts
+ * type MongoDBSchemas = {
+ *   'db.books': Book;
+ *   'db.authors': Author;
+ * }
+ *
+ * const model: ClientBulkWriteModel<MongoDBSchemas> = {
+ *   namespace: 'db.books'
+ *   name: 'insertOne',
+ *   document: { title: 'Practical MongoDB Aggregations', authorName: 3 } // error `authorName` cannot be number
+ * };
+ * ```
+ *
+ * The type of the `namespace` field narrows other parts of the BulkWriteModel to use the correct schema for type assertions.
+ *
+ */
+export declare type ClientBulkWriteModel<SchemaMap extends Record<string, Document> = Record<string, Document>> = {
+    [Namespace in keyof SchemaMap]: AnyClientBulkWriteModel<SchemaMap[Namespace]> & {
+        namespace: Namespace;
+    };
+}[keyof SchemaMap];
+
+/** @public */
+export declare interface ClientBulkWriteOptions extends CommandOperationOptions {
+    /**
+     * If true, when an insert fails, don't execute the remaining writes.
+     * If false, continue with remaining inserts when one fails.
+     * @defaultValue `true` - inserts are ordered by default
+     */
+    ordered?: boolean;
+    /**
+     * Allow driver to bypass schema validation.
+     * @defaultValue `false` - documents will be validated by default
+     **/
+    bypassDocumentValidation?: boolean;
+    /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+    let?: Document;
+    /**
+     * Whether detailed results for each successful operation should be included in the returned
+     * BulkWriteResult.
+     */
+    verboseResults?: boolean;
+}
+
+/** @public */
+export declare interface ClientBulkWriteResult {
+    /**
+     * Whether the bulk write was acknowledged.
+     */
+    readonly acknowledged: boolean;
+    /**
+     * The total number of documents inserted across all insert operations.
+     */
+    readonly insertedCount: number;
+    /**
+     * The total number of documents upserted across all update operations.
+     */
+    readonly upsertedCount: number;
+    /**
+     * The total number of documents matched across all update operations.
+     */
+    readonly matchedCount: number;
+    /**
+     * The total number of documents modified across all update operations.
+     */
+    readonly modifiedCount: number;
+    /**
+     * The total number of documents deleted across all delete operations.
+     */
+    readonly deletedCount: number;
+    /**
+     * The results of each individual insert operation that was successfully performed.
+     */
+    readonly insertResults?: ReadonlyMap<number, ClientInsertOneResult>;
+    /**
+     * The results of each individual update operation that was successfully performed.
+     */
+    readonly updateResults?: ReadonlyMap<number, ClientUpdateResult>;
+    /**
+     * The results of each individual delete operation that was successfully performed.
+     */
+    readonly deleteResults?: ReadonlyMap<number, ClientDeleteResult>;
+}
+
+/** @public */
+export declare interface ClientDeleteManyModel<TSchema> extends ClientWriteModel {
+    name: 'deleteMany';
+    /**
+     * The filter used to determine if a document should be deleted.
+     * For a deleteMany operation, all matches are removed.
+     */
+    filter: Filter<TSchema>;
+    /** Specifies a collation. */
+    collation?: CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: Hint;
+}
+
+/** @public */
+export declare interface ClientDeleteOneModel<TSchema> extends ClientWriteModel {
+    name: 'deleteOne';
+    /**
+     * The filter used to determine if a document should be deleted.
+     * For a deleteOne operation, the first match is removed.
+     */
+    filter: Filter<TSchema>;
+    /** Specifies a collation. */
+    collation?: CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: Hint;
+}
+
+/** @public */
+export declare interface ClientDeleteResult {
+    /**
+     * The number of documents that were deleted.
+     */
+    deletedCount: number;
+}
+
+/**
+ * @public
+ * The public interface for explicit in-use encryption
+ */
+export declare class ClientEncryption {
+    /* Excluded from this release type: _client */
+    /* Excluded from this release type: _keyVaultNamespace */
+    /* Excluded from this release type: _keyVaultClient */
+    /* Excluded from this release type: _proxyOptions */
+    /* Excluded from this release type: _tlsOptions */
+    /* Excluded from this release type: _kmsProviders */
+    /* Excluded from this release type: _timeoutMS */
+    /* Excluded from this release type: _mongoCrypt */
+    /* Excluded from this release type: getMongoCrypt */
+    /**
+     * Create a new encryption instance
+     *
+     * @example
+     * ```ts
+     * new ClientEncryption(mongoClient, {
+     *   keyVaultNamespace: 'client.encryption',
+     *   kmsProviders: {
+     *     local: {
+     *       key: masterKey // The master key used for encryption/decryption. A 96-byte long Buffer
+     *     }
+     *   }
+     * });
+     * ```
+     *
+     * @example
+     * ```ts
+     * new ClientEncryption(mongoClient, {
+     *   keyVaultNamespace: 'client.encryption',
+     *   kmsProviders: {
+     *     aws: {
+     *       accessKeyId: AWS_ACCESS_KEY,
+     *       secretAccessKey: AWS_SECRET_KEY
+     *     }
+     *   }
+     * });
+     * ```
+     */
+    constructor(client: MongoClient, options: ClientEncryptionOptions);
+    /**
+     * Creates a data key used for explicit encryption and inserts it into the key vault namespace
+     *
+     * @example
+     * ```ts
+     * // Using async/await to create a local key
+     * const dataKeyId = await clientEncryption.createDataKey('local');
+     * ```
+     *
+     * @example
+     * ```ts
+     * // Using async/await to create an aws key
+     * const dataKeyId = await clientEncryption.createDataKey('aws', {
+     *   masterKey: {
+     *     region: 'us-east-1',
+     *     key: 'xxxxxxxxxxxxxx' // CMK ARN here
+     *   }
+     * });
+     * ```
+     *
+     * @example
+     * ```ts
+     * // Using async/await to create an aws key with a keyAltName
+     * const dataKeyId = await clientEncryption.createDataKey('aws', {
+     *   masterKey: {
+     *     region: 'us-east-1',
+     *     key: 'xxxxxxxxxxxxxx' // CMK ARN here
+     *   },
+     *   keyAltNames: [ 'mySpecialKey' ]
+     * });
+     * ```
+     */
+    createDataKey(provider: ClientEncryptionDataKeyProvider, options?: ClientEncryptionCreateDataKeyProviderOptions): Promise<UUID>;
+    /**
+     * Searches the keyvault for any data keys matching the provided filter.  If there are matches, rewrapManyDataKey then attempts to re-wrap the data keys using the provided options.
+     *
+     * If no matches are found, then no bulk write is performed.
+     *
+     * @example
+     * ```ts
+     * // rewrapping all data data keys (using a filter that matches all documents)
+     * const filter = {};
+     *
+     * const result = await clientEncryption.rewrapManyDataKey(filter);
+     * if (result.bulkWriteResult != null) {
+     *  // keys were re-wrapped, results will be available in the bulkWrite object.
+     * }
+     * ```
+     *
+     * @example
+     * ```ts
+     * // attempting to rewrap all data keys with no matches
+     * const filter = { _id: new Binary() } // assume _id matches no documents in the database
+     * const result = await clientEncryption.rewrapManyDataKey(filter);
+     *
+     * if (result.bulkWriteResult == null) {
+     *  // no keys matched, `bulkWriteResult` does not exist on the result object
+     * }
+     * ```
+     */
+    rewrapManyDataKey(filter: Filter<DataKey>, options: ClientEncryptionRewrapManyDataKeyProviderOptions): Promise<{
+        bulkWriteResult?: BulkWriteResult;
+    }>;
+    /**
+     * Deletes the key with the provided id from the keyvault, if it exists.
+     *
+     * @example
+     * ```ts
+     * // delete a key by _id
+     * const id = new Binary(); // id is a bson binary subtype 4 object
+     * const { deletedCount } = await clientEncryption.deleteKey(id);
+     *
+     * if (deletedCount != null && deletedCount > 0) {
+     *   // successful deletion
+     * }
+     * ```
+     *
+     */
+    deleteKey(_id: Binary): Promise<DeleteResult>;
+    /**
+     * Finds all the keys currently stored in the keyvault.
+     *
+     * This method will not throw.
+     *
+     * @returns a FindCursor over all keys in the keyvault.
+     * @example
+     * ```ts
+     * // fetching all keys
+     * const keys = await clientEncryption.getKeys().toArray();
+     * ```
+     */
+    getKeys(): FindCursor<DataKey>;
+    /**
+     * Finds a key in the keyvault with the specified _id.
+     *
+     * Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents
+     * match the id.  The promise rejects with an error if an error is thrown.
+     * @example
+     * ```ts
+     * // getting a key by id
+     * const id = new Binary(); // id is a bson binary subtype 4 object
+     * const key = await clientEncryption.getKey(id);
+     * if (!key) {
+     *  // key is null if there was no matching key
+     * }
+     * ```
+     */
+    getKey(_id: Binary): Promise<DataKey | null>;
+    /**
+     * Finds a key in the keyvault which has the specified keyAltName.
+     *
+     * @param keyAltName - a keyAltName to search for a key
+     * @returns Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents
+     * match the keyAltName.  The promise rejects with an error if an error is thrown.
+     * @example
+     * ```ts
+     * // get a key by alt name
+     * const keyAltName = 'keyAltName';
+     * const key = await clientEncryption.getKeyByAltName(keyAltName);
+     * if (!key) {
+     *  // key is null if there is no matching key
+     * }
+     * ```
+     */
+    getKeyByAltName(keyAltName: string): Promise<WithId<DataKey> | null>;
+    /**
+     * Adds a keyAltName to a key identified by the provided _id.
+     *
+     * This method resolves to/returns the *old* key value (prior to adding the new altKeyName).
+     *
+     * @param _id - The id of the document to update.
+     * @param keyAltName - a keyAltName to search for a key
+     * @returns Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents
+     * match the id.  The promise rejects with an error if an error is thrown.
+     * @example
+     * ```ts
+     * // adding an keyAltName to a data key
+     * const id = new Binary();  // id is a bson binary subtype 4 object
+     * const keyAltName = 'keyAltName';
+     * const oldKey = await clientEncryption.addKeyAltName(id, keyAltName);
+     * if (!oldKey) {
+     *  // null is returned if there is no matching document with an id matching the supplied id
+     * }
+     * ```
+     */
+    addKeyAltName(_id: Binary, keyAltName: string): Promise<WithId<DataKey> | null>;
+    /**
+     * Adds a keyAltName to a key identified by the provided _id.
+     *
+     * This method resolves to/returns the *old* key value (prior to removing the new altKeyName).
+     *
+     * If the removed keyAltName is the last keyAltName for that key, the `altKeyNames` property is unset from the document.
+     *
+     * @param _id - The id of the document to update.
+     * @param keyAltName - a keyAltName to search for a key
+     * @returns Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents
+     * match the id.  The promise rejects with an error if an error is thrown.
+     * @example
+     * ```ts
+     * // removing a key alt name from a data key
+     * const id = new Binary();  // id is a bson binary subtype 4 object
+     * const keyAltName = 'keyAltName';
+     * const oldKey = await clientEncryption.removeKeyAltName(id, keyAltName);
+     *
+     * if (!oldKey) {
+     *  // null is returned if there is no matching document with an id matching the supplied id
+     * }
+     * ```
+     */
+    removeKeyAltName(_id: Binary, keyAltName: string): Promise<WithId<DataKey> | null>;
+    /**
+     * A convenience method for creating an encrypted collection.
+     * This method will create data keys for any encryptedFields that do not have a `keyId` defined
+     * and then create a new collection with the full set of encryptedFields.
+     *
+     * @param db - A Node.js driver Db object with which to create the collection
+     * @param name - The name of the collection to be created
+     * @param options - Options for createDataKey and for createCollection
+     * @returns created collection and generated encryptedFields
+     * @throws MongoCryptCreateDataKeyError - If part way through the process a createDataKey invocation fails, an error will be rejected that has the partial `encryptedFields` that were created.
+     * @throws MongoCryptCreateEncryptedCollectionError - If creating the collection fails, an error will be rejected that has the entire `encryptedFields` that were created.
+     */
+    createEncryptedCollection<TSchema extends Document = Document>(db: Db, name: string, options: {
+        provider: ClientEncryptionDataKeyProvider;
+        createCollectionOptions: Omit<CreateCollectionOptions, 'encryptedFields'> & {
+            encryptedFields: Document;
+        };
+        masterKey?: AWSEncryptionKeyOptions | AzureEncryptionKeyOptions | GCPEncryptionKeyOptions;
+    }): Promise<{
+        collection: Collection<TSchema>;
+        encryptedFields: Document;
+    }>;
+    /**
+     * Explicitly encrypt a provided value. Note that either `options.keyId` or `options.keyAltName` must
+     * be specified. Specifying both `options.keyId` and `options.keyAltName` is considered an error.
+     *
+     * @param value - The value that you wish to serialize. Must be of a type that can be serialized into BSON
+     * @param options -
+     * @returns a Promise that either resolves with the encrypted value, or rejects with an error.
+     *
+     * @example
+     * ```ts
+     * // Encryption with async/await api
+     * async function encryptMyData(value) {
+     *   const keyId = await clientEncryption.createDataKey('local');
+     *   return clientEncryption.encrypt(value, { keyId, algorithm: 'AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic' });
+     * }
+     * ```
+     *
+     * @example
+     * ```ts
+     * // Encryption using a keyAltName
+     * async function encryptMyData(value) {
+     *   await clientEncryption.createDataKey('local', { keyAltNames: 'mySpecialKey' });
+     *   return clientEncryption.encrypt(value, { keyAltName: 'mySpecialKey', algorithm: 'AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic' });
+     * }
+     * ```
+     */
+    encrypt(value: unknown, options: ClientEncryptionEncryptOptions): Promise<Binary>;
+    /**
+     * Encrypts a Match Expression or Aggregate Expression to query a range index.
+     *
+     * Only supported when queryType is "range" and algorithm is "Range".
+     *
+     * @param expression - a BSON document of one of the following forms:
+     *  1. A Match Expression of this form:
+     *      `{$and: [{<field>: {$gt: <value1>}}, {<field>: {$lt: <value2> }}]}`
+     *  2. An Aggregate Expression of this form:
+     *      `{$and: [{$gt: [<fieldpath>, <value1>]}, {$lt: [<fieldpath>, <value2>]}]}`
+     *
+     *    `$gt` may also be `$gte`. `$lt` may also be `$lte`.
+     *
+     * @param options -
+     * @returns Returns a Promise that either resolves with the encrypted value or rejects with an error.
+     */
+    encryptExpression(expression: Document, options: ClientEncryptionEncryptOptions): Promise<Binary>;
+    /**
+     * Explicitly decrypt a provided encrypted value
+     *
+     * @param value - An encrypted value
+     * @returns a Promise that either resolves with the decrypted value, or rejects with an error
+     *
+     * @example
+     * ```ts
+     * // Decrypting value with async/await API
+     * async function decryptMyValue(value) {
+     *   return clientEncryption.decrypt(value);
+     * }
+     * ```
+     */
+    decrypt<T = any>(value: Binary): Promise<T>;
+    /* Excluded from this release type: askForKMSCredentials */
+    static get libmongocryptVersion(): string;
+    /* Excluded from this release type: _encrypt */
+}
+
+/**
+ * @public
+ * Options to provide when creating a new data key.
+ */
+export declare interface ClientEncryptionCreateDataKeyProviderOptions {
+    /**
+     * Identifies a new KMS-specific key used to encrypt the new data key
+     */
+    masterKey?: AWSEncryptionKeyOptions | AzureEncryptionKeyOptions | GCPEncryptionKeyOptions | KMIPEncryptionKeyOptions | undefined;
+    /**
+     * An optional list of string alternate names used to reference a key.
+     * If a key is created with alternate names, then encryption may refer to the key by the unique alternate name instead of by _id.
+     */
+    keyAltNames?: string[] | undefined;
+    /** @experimental */
+    keyMaterial?: Buffer | Binary;
+    /* Excluded from this release type: timeoutContext */
+}
+
+/**
+ * @public
+ *
+ * A data key provider.  Allowed values:
+ *
+ * - aws, gcp, local, kmip or azure
+ * - (`mongodb-client-encryption>=6.0.1` only) a named key, in the form of:
+ *    `aws:<name>`, `gcp:<name>`, `local:<name>`, `kmip:<name>`, `azure:<name>`
+ *  where `name` is an alphanumeric string, underscores allowed.
+ */
+export declare type ClientEncryptionDataKeyProvider = keyof KMSProviders;
+
+/**
+ * @public
+ * Options to provide when encrypting data.
+ */
+export declare interface ClientEncryptionEncryptOptions {
+    /**
+     * The algorithm to use for encryption.
+     */
+    algorithm: 'AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic' | 'AEAD_AES_256_CBC_HMAC_SHA_512-Random' | 'Indexed' | 'Unindexed' | 'Range';
+    /**
+     * The id of the Binary dataKey to use for encryption
+     */
+    keyId?: Binary;
+    /**
+     * A unique string name corresponding to an already existing dataKey.
+     */
+    keyAltName?: string;
+    /** The contention factor. */
+    contentionFactor?: bigint | number;
+    /**
+     * The query type.
+     */
+    queryType?: 'equality' | 'range';
+    /** The index options for a Queryable Encryption field supporting "range" queries.*/
+    rangeOptions?: RangeOptions;
+}
+
+/**
+ * @public
+ * Additional settings to provide when creating a new `ClientEncryption` instance.
+ */
+export declare interface ClientEncryptionOptions {
+    /**
+     * The namespace of the key vault, used to store encryption keys
+     */
+    keyVaultNamespace: string;
+    /**
+     * A MongoClient used to fetch keys from a key vault. Defaults to client.
+     */
+    keyVaultClient?: MongoClient | undefined;
+    /**
+     * Options for specific KMS providers to use
+     */
+    kmsProviders?: KMSProviders;
+    /**
+     * Options for specifying a Socks5 proxy to use for connecting to the KMS.
+     */
+    proxyOptions?: ProxyOptions;
+    /**
+     * TLS options for kms providers to use.
+     */
+    tlsOptions?: CSFLEKMSTlsOptions;
+    /**
+     * @experimental
+     *
+     * The timeout setting to be used for all the operations on ClientEncryption.
+     *
+     * When provided, `timeoutMS` is used as the timeout for each operation executed on
+     * the ClientEncryption object.  For example:
+     *
+     * ```typescript
+     * const clientEncryption = new ClientEncryption(client, {
+     *  timeoutMS: 1_000
+     *  kmsProviders: { local: { key: '<KEY>' } }
+     * });
+     *
+     * // `1_000` is used as the timeout for createDataKey call
+     * await clientEncryption.createDataKey('local');
+     * ```
+     *
+     * If `timeoutMS` is configured on the provided client, the client's `timeoutMS` value
+     * will be used unless `timeoutMS` is also provided as a client encryption option.
+     *
+     * ```typescript
+     * const client = new MongoClient('<uri>', { timeoutMS: 2_000 });
+     *
+     * // timeoutMS is set to 1_000 on clientEncryption
+     * const clientEncryption = new ClientEncryption(client, {
+     *  timeoutMS: 1_000
+     *  kmsProviders: { local: { key: '<KEY>' } }
+     * });
+     * ```
+     */
+    timeoutMS?: number;
+}
+
+/**
+ * @public
+ * @experimental
+ */
+export declare interface ClientEncryptionRewrapManyDataKeyProviderOptions {
+    provider: ClientEncryptionDataKeyProvider;
+    masterKey?: AWSEncryptionKeyOptions | AzureEncryptionKeyOptions | GCPEncryptionKeyOptions | KMIPEncryptionKeyOptions | undefined;
+}
+
+/**
+ * @public
+ * @experimental
+ */
+export declare interface ClientEncryptionRewrapManyDataKeyResult {
+    /** The result of rewrapping data keys. If unset, no keys matched the filter. */
+    bulkWriteResult?: BulkWriteResult;
+}
+
+/**
+ * @public
+ *
+ * Socket options to use for KMS requests.
+ */
+export declare type ClientEncryptionSocketOptions = Pick<MongoClientOptions, 'autoSelectFamily' | 'autoSelectFamilyAttemptTimeout'>;
+
+/**
+ * @public
+ *
+ * TLS options to use when connecting. The spec specifically calls out which insecure
+ * tls options are not allowed:
+ *
+ *  - tlsAllowInvalidCertificates
+ *  - tlsAllowInvalidHostnames
+ *  - tlsInsecure
+ *
+ * These options are not included in the type, and are ignored if provided.
+ */
+export declare type ClientEncryptionTlsOptions = Pick<MongoClientOptions, 'tlsCAFile' | 'tlsCertificateKeyFile' | 'tlsCertificateKeyFilePassword'>;
+
+/** @public */
+export declare interface ClientInsertOneModel<TSchema> extends ClientWriteModel {
+    name: 'insertOne';
+    /** The document to insert. */
+    document: OptionalId<TSchema>;
+}
+
+/** @public */
+export declare interface ClientInsertOneResult {
+    /**
+     * The _id of the inserted document.
+     */
+    insertedId: any;
+}
+
+/**
+ * @public
+ * @see https://github.com/mongodb/specifications/blob/master/source/mongodb-handshake/handshake.md#hello-command
+ */
+export declare interface ClientMetadata {
+    driver: {
+        name: string;
+        version: string;
+    };
+    os: {
+        type: string;
+        name?: NodeJS.Platform;
+        architecture?: string;
+        version?: string;
+    };
+    platform: string;
+    application?: {
+        name: string;
+    };
+    /** FaaS environment information */
+    env?: {
+        name: 'aws.lambda' | 'gcp.func' | 'azure.func' | 'vercel';
+        timeout_sec?: Int32;
+        memory_mb?: Int32;
+        region?: string;
+        url?: string;
+    };
+}
+
+/** @public */
+export declare interface ClientMetadataOptions {
+    driverInfo?: {
+        name?: string;
+        version?: string;
+        platform?: string;
+    };
+    appName?: string;
+}
+
+/** @public */
+export declare interface ClientReplaceOneModel<TSchema> extends ClientWriteModel {
+    name: 'replaceOne';
+    /**
+     * The filter used to determine if a document should be replaced.
+     * For a replaceOne operation, the first match is replaced.
+     */
+    filter: Filter<TSchema>;
+    /** The document with which to replace the matched document. */
+    replacement: WithoutId<TSchema>;
+    /** Specifies a collation. */
+    collation?: CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: Hint;
+    /** When true, creates a new document if no document matches the query. */
+    upsert?: boolean;
+}
+
+/**
+ * A class representing a client session on the server
+ *
+ * NOTE: not meant to be instantiated directly.
+ * @public
+ */
+export declare class ClientSession extends TypedEventEmitter<ClientSessionEvents> implements AsyncDisposable_2 {
+    /* Excluded from this release type: client */
+    /* Excluded from this release type: sessionPool */
+    hasEnded: boolean;
+    clientOptions: MongoOptions;
+    supports: {
+        causalConsistency: boolean;
+    };
+    clusterTime?: ClusterTime;
+    operationTime?: Timestamp;
+    explicit: boolean;
+    /* Excluded from this release type: owner */
+    defaultTransactionOptions: TransactionOptions;
+    transaction: Transaction;
+    /* Excluded from this release type: commitAttempted */
+    /* Excluded from this release type: [kServerSession] */
+    /* Excluded from this release type: [kSnapshotTime] */
+    /* Excluded from this release type: [kSnapshotEnabled] */
+    /* Excluded from this release type: [kPinnedConnection] */
+    /* Excluded from this release type: [kTxnNumberIncrement] */
+    /**
+     * @experimental
+     * Specifies the time an operation in a given `ClientSession` will run until it throws a timeout error
+     */
+    timeoutMS?: number;
+    /* Excluded from this release type: timeoutContext */
+    /* Excluded from this release type: __constructor */
+    /** The server id associated with this session */
+    get id(): ServerSessionId | undefined;
+    get serverSession(): ServerSession;
+    /** Whether or not this session is configured for snapshot reads */
+    get snapshotEnabled(): boolean;
+    get loadBalanced(): boolean;
+    /* Excluded from this release type: pinnedConnection */
+    /* Excluded from this release type: pin */
+    /* Excluded from this release type: unpin */
+    get isPinned(): boolean;
+    /**
+     * Frees any client-side resources held by the current session.  If a session is in a transaction,
+     * the transaction is aborted.
+     *
+     * Does not end the session on the server.
+     *
+     * @param options - Optional settings. Currently reserved for future use
+     */
+    endSession(options?: EndSessionOptions): Promise<void>;
+    /**
+     * @beta
+     * @experimental
+     * An alias for {@link ClientSession.endSession|ClientSession.endSession()}.
+     */
+    [Symbol.asyncDispose]: () => Promise<void>;
+    /* Excluded from this release type: asyncDispose */
+    /**
+     * Advances the operationTime for a ClientSession.
+     *
+     * @param operationTime - the `BSON.Timestamp` of the operation type it is desired to advance to
+     */
+    advanceOperationTime(operationTime: Timestamp): void;
+    /**
+     * Advances the clusterTime for a ClientSession to the provided clusterTime of another ClientSession
+     *
+     * @param clusterTime - the $clusterTime returned by the server from another session in the form of a document containing the `BSON.Timestamp` clusterTime and signature
+     */
+    advanceClusterTime(clusterTime: ClusterTime): void;
+    /**
+     * Used to determine if this session equals another
+     *
+     * @param session - The session to compare to
+     */
+    equals(session: ClientSession): boolean;
+    /**
+     * Increment the transaction number on the internal ServerSession
+     *
+     * @privateRemarks
+     * This helper increments a value stored on the client session that will be
+     * added to the serverSession's txnNumber upon applying it to a command.
+     * This is because the serverSession is lazily acquired after a connection is obtained
+     */
+    incrementTransactionNumber(): void;
+    /** @returns whether this session is currently in a transaction or not */
+    inTransaction(): boolean;
+    /**
+     * Starts a new transaction with the given options.
+     *
+     * @remarks
+     * **IMPORTANT**: Running operations in parallel is not supported during a transaction. The use of `Promise.all`,
+     * `Promise.allSettled`, `Promise.race`, etc to parallelize operations inside a transaction is
+     * undefined behaviour.
+     *
+     * @param options - Options for the transaction
+     */
+    startTransaction(options?: TransactionOptions): void;
+    /**
+     * Commits the currently active transaction in this session.
+     *
+     * @param options - Optional options, can be used to override `defaultTimeoutMS`.
+     */
+    commitTransaction(options?: {
+        timeoutMS?: number;
+    }): Promise<void>;
+    /**
+     * Aborts the currently active transaction in this session.
+     *
+     * @param options - Optional options, can be used to override `defaultTimeoutMS`.
+     */
+    abortTransaction(options?: {
+        timeoutMS?: number;
+    }): Promise<void>;
+    /* Excluded from this release type: abortTransaction */
+    /**
+     * This is here to ensure that ClientSession is never serialized to BSON.
+     */
+    toBSON(): never;
+    /**
+     * Starts a transaction and runs a provided function, ensuring the commitTransaction is always attempted when all operations run in the function have completed.
+     *
+     * **IMPORTANT:** This method requires the function passed in to return a Promise. That promise must be made by `await`-ing all operations in such a way that rejections are propagated to the returned promise.
+     *
+     * **IMPORTANT:** Running operations in parallel is not supported during a transaction. The use of `Promise.all`,
+     * `Promise.allSettled`, `Promise.race`, etc to parallelize operations inside a transaction is
+     * undefined behaviour.
+     *
+     * **IMPORTANT:** When running an operation inside a `withTransaction` callback, if it is not
+     * provided the explicit session in its options, it will not be part of the transaction and it will not respect timeoutMS.
+     *
+     *
+     * @remarks
+     * - If all operations successfully complete and the `commitTransaction` operation is successful, then the provided function will return the result of the provided function.
+     * - If the transaction is unable to complete or an error is thrown from within the provided function, then the provided function will throw an error.
+     *   - If the transaction is manually aborted within the provided function it will not throw.
+     * - If the driver needs to attempt to retry the operations, the provided function may be called multiple times.
+     *
+     * Checkout a descriptive example here:
+     * @see https://www.mongodb.com/blog/post/quick-start-nodejs--mongodb--how-to-implement-transactions
+     *
+     * If a command inside withTransaction fails:
+     * - It may cause the transaction on the server to be aborted.
+     * - This situation is normally handled transparently by the driver.
+     * - However, if the application catches such an error and does not rethrow it, the driver will not be able to determine whether the transaction was aborted or not.
+     * - The driver will then retry the transaction indefinitely.
+     *
+     * To avoid this situation, the application must not silently handle errors within the provided function.
+     * If the application needs to handle errors within, it must await all operations such that if an operation is rejected it becomes the rejection of the callback function passed into withTransaction.
+     *
+     * @param fn - callback to run within a transaction
+     * @param options - optional settings for the transaction
+     * @returns A raw command response or undefined
+     */
+    withTransaction<T = any>(fn: WithTransactionCallback<T>, options?: TransactionOptions & {
+        /**
+         * Configures a timeoutMS expiry for the entire withTransactionCallback.
+         *
+         * @remarks
+         * - The remaining timeout will not be applied to callback operations that do not use the ClientSession.
+         * - Overriding timeoutMS for operations executed using the explicit session inside the provided callback will result in a client-side error.
+         */
+        timeoutMS?: number;
+    }): Promise<T>;
+}
+
+/** @public */
+export declare type ClientSessionEvents = {
+    ended(session: ClientSession): void;
+};
+
+/** @public */
+export declare interface ClientSessionOptions {
+    /** Whether causal consistency should be enabled on this session */
+    causalConsistency?: boolean;
+    /** Whether all read operations should be read from the same snapshot for this session (NOTE: not compatible with `causalConsistency=true`) */
+    snapshot?: boolean;
+    /** The default TransactionOptions to use for transactions started on this session. */
+    defaultTransactionOptions?: TransactionOptions;
+    /**
+     * @public
+     * @experimental
+     * An overriding timeoutMS value to use for a client-side timeout.
+     * If not provided the session uses the timeoutMS specified on the MongoClient.
+     */
+    defaultTimeoutMS?: number;
+    /* Excluded from this release type: owner */
+    /* Excluded from this release type: explicit */
+    /* Excluded from this release type: initialClusterTime */
+}
+
+/** @public */
+export declare interface ClientUpdateManyModel<TSchema> extends ClientWriteModel {
+    name: 'updateMany';
+    /**
+     * The filter used to determine if a document should be updated.
+     * For an updateMany operation, all matches are updated.
+     */
+    filter: Filter<TSchema>;
+    /**
+     * The modifications to apply. The value can be either:
+     * UpdateFilter<Document> - A document that contains update operator expressions,
+     * Document[] - an aggregation pipeline.
+     */
+    update: UpdateFilter<TSchema> | Document[];
+    /** A set of filters specifying to which array elements an update should apply. */
+    arrayFilters?: Document[];
+    /** Specifies a collation. */
+    collation?: CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: Hint;
+    /** When true, creates a new document if no document matches the query. */
+    upsert?: boolean;
+}
+
+/** @public */
+export declare interface ClientUpdateOneModel<TSchema> extends ClientWriteModel {
+    name: 'updateOne';
+    /**
+     * The filter used to determine if a document should be updated.
+     * For an updateOne operation, the first match is updated.
+     */
+    filter: Filter<TSchema>;
+    /**
+     * The modifications to apply. The value can be either:
+     * UpdateFilter<Document> - A document that contains update operator expressions,
+     * Document[] - an aggregation pipeline.
+     */
+    update: UpdateFilter<TSchema> | Document[];
+    /** A set of filters specifying to which array elements an update should apply. */
+    arrayFilters?: Document[];
+    /** Specifies a collation. */
+    collation?: CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: Hint;
+    /** When true, creates a new document if no document matches the query. */
+    upsert?: boolean;
+}
+
+/** @public */
+export declare interface ClientUpdateResult {
+    /**
+     * The number of documents that matched the filter.
+     */
+    matchedCount: number;
+    /**
+     * The number of documents that were modified.
+     */
+    modifiedCount: number;
+    /**
+     * The _id field of the upserted document if an upsert occurred.
+     *
+     * It MUST be possible to discern between a BSON Null upserted ID value and this field being
+     * unset. If necessary, drivers MAY add a didUpsert boolean field to differentiate between
+     * these two cases.
+     */
+    upsertedId?: any;
+    /**
+     * Determines if the upsert did include an _id, which includes the case of the _id being null.
+     */
+    didUpsert: boolean;
+}
+
+/** @public */
+export declare interface ClientWriteModel {
+    /**
+     * The namespace for the write.
+     *
+     * A namespace is a combination of the database name and the name of the collection: `<database-name>.<collection>`.
+     * All documents belong to a namespace.
+     *
+     * @see https://www.mongodb.com/docs/manual/reference/limits/#std-label-faq-dev-namespace
+     */
+    namespace: string;
+}
+
+/**
+ * @public
+ * @deprecated This interface is deprecated and will be removed in a future release as it is not used
+ * in the driver
+ */
+export declare interface CloseOptions {
+    force?: boolean;
+}
+
+/** @public
+ * Configuration options for clustered collections
+ * @see https://www.mongodb.com/docs/manual/core/clustered-collections/
+ */
+export declare interface ClusteredCollectionOptions extends Document {
+    name?: string;
+    key: Document;
+    unique: boolean;
+}
+
+/**
+ * @public
+ * Gossiped in component for the cluster time tracking the state of user databases
+ * across the cluster. It may optionally include a signature identifying the process that
+ * generated such a value.
+ */
+export declare interface ClusterTime {
+    clusterTime: Timestamp;
+    /** Used to validate the identity of a request or response's ClusterTime. */
+    signature?: {
+        hash: Binary;
+        keyId: Long;
+    };
+}
+
+export { Code }
+
+/** @public */
+export declare interface CollationOptions {
+    locale: string;
+    caseLevel?: boolean;
+    caseFirst?: string;
+    strength?: number;
+    numericOrdering?: boolean;
+    alternate?: string;
+    maxVariable?: string;
+    backwards?: boolean;
+    normalization?: boolean;
+}
+
+/**
+ * The **Collection** class is an internal class that embodies a MongoDB collection
+ * allowing for insert/find/update/delete and other command operation on that MongoDB collection.
+ *
+ * **COLLECTION Cannot directly be instantiated**
+ * @public
+ *
+ * @example
+ * ```ts
+ * import { MongoClient } from 'mongodb';
+ *
+ * interface Pet {
+ *   name: string;
+ *   kind: 'dog' | 'cat' | 'fish';
+ * }
+ *
+ * const client = new MongoClient('mongodb://localhost:27017');
+ * const pets = client.db().collection<Pet>('pets');
+ *
+ * const petCursor = pets.find();
+ *
+ * for await (const pet of petCursor) {
+ *   console.log(`${pet.name} is a ${pet.kind}!`);
+ * }
+ * ```
+ */
+export declare class Collection<TSchema extends Document = Document> {
+    /* Excluded from this release type: s */
+    /* Excluded from this release type: client */
+    /* Excluded from this release type: __constructor */
+    /**
+     * The name of the database this collection belongs to
+     */
+    get dbName(): string;
+    /**
+     * The name of this collection
+     */
+    get collectionName(): string;
+    /**
+     * The namespace of this collection, in the format `${this.dbName}.${this.collectionName}`
+     */
+    get namespace(): string;
+    /* Excluded from this release type: fullNamespace */
+    /**
+     * The current readConcern of the collection. If not explicitly defined for
+     * this collection, will be inherited from the parent DB
+     */
+    get readConcern(): ReadConcern | undefined;
+    /**
+     * The current readPreference of the collection. If not explicitly defined for
+     * this collection, will be inherited from the parent DB
+     */
+    get readPreference(): ReadPreference | undefined;
+    get bsonOptions(): BSONSerializeOptions;
+    /**
+     * The current writeConcern of the collection. If not explicitly defined for
+     * this collection, will be inherited from the parent DB
+     */
+    get writeConcern(): WriteConcern | undefined;
+    /** The current index hint for the collection */
+    get hint(): Hint | undefined;
+    set hint(v: Hint | undefined);
+    get timeoutMS(): number | undefined;
+    /**
+     * Inserts a single document into MongoDB. If documents passed in do not contain the **_id** field,
+     * one will be added to each of the documents missing it by the driver, mutating the document. This behavior
+     * can be overridden by setting the **forceServerObjectId** flag.
+     *
+     * @param doc - The document to insert
+     * @param options - Optional settings for the command
+     */
+    insertOne(doc: OptionalUnlessRequiredId<TSchema>, options?: InsertOneOptions): Promise<InsertOneResult<TSchema>>;
+    /**
+     * Inserts an array of documents into MongoDB. If documents passed in do not contain the **_id** field,
+     * one will be added to each of the documents missing it by the driver, mutating the document. This behavior
+     * can be overridden by setting the **forceServerObjectId** flag.
+     *
+     * @param docs - The documents to insert
+     * @param options - Optional settings for the command
+     */
+    insertMany(docs: ReadonlyArray<OptionalUnlessRequiredId<TSchema>>, options?: BulkWriteOptions): Promise<InsertManyResult<TSchema>>;
+    /**
+     * Perform a bulkWrite operation without a fluent API
+     *
+     * Legal operation types are
+     * - `insertOne`
+     * - `replaceOne`
+     * - `updateOne`
+     * - `updateMany`
+     * - `deleteOne`
+     * - `deleteMany`
+     *
+     * If documents passed in do not contain the **_id** field,
+     * one will be added to each of the documents missing it by the driver, mutating the document. This behavior
+     * can be overridden by setting the **forceServerObjectId** flag.
+     *
+     * @param operations - Bulk operations to perform
+     * @param options - Optional settings for the command
+     * @throws MongoDriverError if operations is not an array
+     */
+    bulkWrite(operations: ReadonlyArray<AnyBulkWriteOperation<TSchema>>, options?: BulkWriteOptions): Promise<BulkWriteResult>;
+    /**
+     * Update a single document in a collection
+     *
+     * The value of `update` can be either:
+     * - UpdateFilter<TSchema> - A document that contains update operator expressions,
+     * - Document[] - an aggregation pipeline.
+     *
+     * @param filter - The filter used to select the document to update
+     * @param update - The modifications to apply
+     * @param options - Optional settings for the command
+     */
+    updateOne(filter: Filter<TSchema>, update: UpdateFilter<TSchema> | Document[], options?: UpdateOptions): Promise<UpdateResult<TSchema>>;
+    /**
+     * Replace a document in a collection with another document
+     *
+     * @param filter - The filter used to select the document to replace
+     * @param replacement - The Document that replaces the matching document
+     * @param options - Optional settings for the command
+     */
+    replaceOne(filter: Filter<TSchema>, replacement: WithoutId<TSchema>, options?: ReplaceOptions): Promise<UpdateResult<TSchema> | Document>;
+    /**
+     * Update multiple documents in a collection
+     *
+     * The value of `update` can be either:
+     * - UpdateFilter<TSchema> - A document that contains update operator expressions,
+     * - Document[] - an aggregation pipeline.
+     *
+     * @param filter - The filter used to select the document to update
+     * @param update - The modifications to apply
+     * @param options - Optional settings for the command
+     */
+    updateMany(filter: Filter<TSchema>, update: UpdateFilter<TSchema> | Document[], options?: UpdateOptions): Promise<UpdateResult<TSchema>>;
+    /**
+     * Delete a document from a collection
+     *
+     * @param filter - The filter used to select the document to remove
+     * @param options - Optional settings for the command
+     */
+    deleteOne(filter?: Filter<TSchema>, options?: DeleteOptions): Promise<DeleteResult>;
+    /**
+     * Delete multiple documents from a collection
+     *
+     * @param filter - The filter used to select the documents to remove
+     * @param options - Optional settings for the command
+     */
+    deleteMany(filter?: Filter<TSchema>, options?: DeleteOptions): Promise<DeleteResult>;
+    /**
+     * Rename the collection.
+     *
+     * @remarks
+     * This operation does not inherit options from the Db or MongoClient.
+     *
+     * @param newName - New name of of the collection.
+     * @param options - Optional settings for the command
+     */
+    rename(newName: string, options?: RenameOptions): Promise<Collection>;
+    /**
+     * Drop the collection from the database, removing it permanently. New accesses will create a new collection.
+     *
+     * @param options - Optional settings for the command
+     */
+    drop(options?: DropCollectionOptions): Promise<boolean>;
+    /**
+     * Fetches the first document that matches the filter
+     *
+     * @param filter - Query for find Operation
+     * @param options - Optional settings for the command
+     */
+    findOne(): Promise<WithId<TSchema> | null>;
+    findOne(filter: Filter<TSchema>): Promise<WithId<TSchema> | null>;
+    findOne(filter: Filter<TSchema>, options: Omit<FindOptions, 'timeoutMode'>): Promise<WithId<TSchema> | null>;
+    findOne<T = TSchema>(): Promise<T | null>;
+    findOne<T = TSchema>(filter: Filter<TSchema>): Promise<T | null>;
+    findOne<T = TSchema>(filter: Filter<TSchema>, options?: Omit<FindOptions, 'timeoutMode'>): Promise<T | null>;
+    /**
+     * Creates a cursor for a filter that can be used to iterate over results from MongoDB
+     *
+     * @param filter - The filter predicate. If unspecified, then all documents in the collection will match the predicate
+     */
+    find(): FindCursor<WithId<TSchema>>;
+    find(filter: Filter<TSchema>, options?: FindOptions): FindCursor<WithId<TSchema>>;
+    find<T extends Document>(filter: Filter<TSchema>, options?: FindOptions): FindCursor<T>;
+    /**
+     * Returns the options of the collection.
+     *
+     * @param options - Optional settings for the command
+     */
+    options(options?: OperationOptions): Promise<Document>;
+    /**
+     * Returns if the collection is a capped collection
+     *
+     * @param options - Optional settings for the command
+     */
+    isCapped(options?: OperationOptions): Promise<boolean>;
+    /**
+     * Creates an index on the db and collection collection.
+     *
+     * @param indexSpec - The field name or index specification to create an index for
+     * @param options - Optional settings for the command
+     *
+     * @example
+     * ```ts
+     * const collection = client.db('foo').collection('bar');
+     *
+     * await collection.createIndex({ a: 1, b: -1 });
+     *
+     * // Alternate syntax for { c: 1, d: -1 } that ensures order of indexes
+     * await collection.createIndex([ [c, 1], [d, -1] ]);
+     *
+     * // Equivalent to { e: 1 }
+     * await collection.createIndex('e');
+     *
+     * // Equivalent to { f: 1, g: 1 }
+     * await collection.createIndex(['f', 'g'])
+     *
+     * // Equivalent to { h: 1, i: -1 }
+     * await collection.createIndex([ { h: 1 }, { i: -1 } ]);
+     *
+     * // Equivalent to { j: 1, k: -1, l: 2d }
+     * await collection.createIndex(['j', ['k', -1], { l: '2d' }])
+     * ```
+     */
+    createIndex(indexSpec: IndexSpecification, options?: CreateIndexesOptions): Promise<string>;
+    /**
+     * Creates multiple indexes in the collection, this method is only supported for
+     * MongoDB 2.6 or higher. Earlier version of MongoDB will throw a command not supported
+     * error.
+     *
+     * **Note**: Unlike {@link Collection#createIndex| createIndex}, this function takes in raw index specifications.
+     * Index specifications are defined {@link https://www.mongodb.com/docs/manual/reference/command/createIndexes/| here}.
+     *
+     * @param indexSpecs - An array of index specifications to be created
+     * @param options - Optional settings for the command
+     *
+     * @example
+     * ```ts
+     * const collection = client.db('foo').collection('bar');
+     * await collection.createIndexes([
+     *   // Simple index on field fizz
+     *   {
+     *     key: { fizz: 1 },
+     *   }
+     *   // wildcard index
+     *   {
+     *     key: { '$**': 1 }
+     *   },
+     *   // named index on darmok and jalad
+     *   {
+     *     key: { darmok: 1, jalad: -1 }
+     *     name: 'tanagra'
+     *   }
+     * ]);
+     * ```
+     */
+    createIndexes(indexSpecs: IndexDescription[], options?: CreateIndexesOptions): Promise<string[]>;
+    /**
+     * Drops an index from this collection.
+     *
+     * @param indexName - Name of the index to drop.
+     * @param options - Optional settings for the command
+     */
+    dropIndex(indexName: string, options?: DropIndexesOptions): Promise<Document>;
+    /**
+     * Drops all indexes from this collection.
+     *
+     * @param options - Optional settings for the command
+     */
+    dropIndexes(options?: DropIndexesOptions): Promise<boolean>;
+    /**
+     * Get the list of all indexes information for the collection.
+     *
+     * @param options - Optional settings for the command
+     */
+    listIndexes(options?: ListIndexesOptions): ListIndexesCursor;
+    /**
+     * Checks if one or more indexes exist on the collection, fails on first non-existing index
+     *
+     * @param indexes - One or more index names to check.
+     * @param options - Optional settings for the command
+     */
+    indexExists(indexes: string | string[], options?: ListIndexesOptions): Promise<boolean>;
+    /**
+     * Retrieves this collections index info.
+     *
+     * @param options - Optional settings for the command
+     */
+    indexInformation(options: IndexInformationOptions & {
+        full: true;
+    }): Promise<IndexDescriptionInfo[]>;
+    indexInformation(options: IndexInformationOptions & {
+        full?: false;
+    }): Promise<IndexDescriptionCompact>;
+    indexInformation(options: IndexInformationOptions): Promise<IndexDescriptionCompact | IndexDescriptionInfo[]>;
+    indexInformation(): Promise<IndexDescriptionCompact>;
+    /**
+     * Gets an estimate of the count of documents in a collection using collection metadata.
+     * This will always run a count command on all server versions.
+     *
+     * due to an oversight in versions 5.0.0-5.0.8 of MongoDB, the count command,
+     * which estimatedDocumentCount uses in its implementation, was not included in v1 of
+     * the Stable API, and so users of the Stable API with estimatedDocumentCount are
+     * recommended to upgrade their server version to 5.0.9+ or set apiStrict: false to avoid
+     * encountering errors.
+     *
+     * @see {@link https://www.mongodb.com/docs/manual/reference/command/count/#behavior|Count: Behavior}
+     * @param options - Optional settings for the command
+     */
+    estimatedDocumentCount(options?: EstimatedDocumentCountOptions): Promise<number>;
+    /**
+     * Gets the number of documents matching the filter.
+     * For a fast count of the total documents in a collection see {@link Collection#estimatedDocumentCount| estimatedDocumentCount}.
+     *
+     * Due to countDocuments using the $match aggregation pipeline stage, certain query operators cannot be used in countDocuments. This includes the $where and $near query operators, among others. Details can be found in the documentation for the $match aggregation pipeline stage.
+     *
+     * **Note**: When migrating from {@link Collection#count| count} to {@link Collection#countDocuments| countDocuments}
+     * the following query operators must be replaced:
+     *
+     * | Operator | Replacement |
+     * | -------- | ----------- |
+     * | `$where`   | [`$expr`][1] |
+     * | `$near`    | [`$geoWithin`][2] with [`$center`][3] |
+     * | `$nearSphere` | [`$geoWithin`][2] with [`$centerSphere`][4] |
+     *
+     * [1]: https://www.mongodb.com/docs/manual/reference/operator/query/expr/
+     * [2]: https://www.mongodb.com/docs/manual/reference/operator/query/geoWithin/
+     * [3]: https://www.mongodb.com/docs/manual/reference/operator/query/center/#op._S_center
+     * [4]: https://www.mongodb.com/docs/manual/reference/operator/query/centerSphere/#op._S_centerSphere
+     *
+     * @param filter - The filter for the count
+     * @param options - Optional settings for the command
+     *
+     * @see https://www.mongodb.com/docs/manual/reference/operator/query/expr/
+     * @see https://www.mongodb.com/docs/manual/reference/operator/query/geoWithin/
+     * @see https://www.mongodb.com/docs/manual/reference/operator/query/center/#op._S_center
+     * @see https://www.mongodb.com/docs/manual/reference/operator/query/centerSphere/#op._S_centerSphere
+     */
+    countDocuments(filter?: Filter<TSchema>, options?: CountDocumentsOptions): Promise<number>;
+    /**
+     * The distinct command returns a list of distinct values for the given key across a collection.
+     *
+     * @param key - Field of the document to find distinct values for
+     * @param filter - The filter for filtering the set of documents to which we apply the distinct filter.
+     * @param options - Optional settings for the command
+     */
+    distinct<Key extends keyof WithId<TSchema>>(key: Key): Promise<Array<Flatten<WithId<TSchema>[Key]>>>;
+    distinct<Key extends keyof WithId<TSchema>>(key: Key, filter: Filter<TSchema>): Promise<Array<Flatten<WithId<TSchema>[Key]>>>;
+    distinct<Key extends keyof WithId<TSchema>>(key: Key, filter: Filter<TSchema>, options: DistinctOptions): Promise<Array<Flatten<WithId<TSchema>[Key]>>>;
+    distinct(key: string): Promise<any[]>;
+    distinct(key: string, filter: Filter<TSchema>): Promise<any[]>;
+    distinct(key: string, filter: Filter<TSchema>, options: DistinctOptions): Promise<any[]>;
+    /**
+     * Retrieve all the indexes on the collection.
+     *
+     * @param options - Optional settings for the command
+     */
+    indexes(options: IndexInformationOptions & {
+        full?: true;
+    }): Promise<IndexDescriptionInfo[]>;
+    indexes(options: IndexInformationOptions & {
+        full: false;
+    }): Promise<IndexDescriptionCompact>;
+    indexes(options: IndexInformationOptions): Promise<IndexDescriptionCompact | IndexDescriptionInfo[]>;
+    indexes(options?: ListIndexesOptions): Promise<IndexDescriptionInfo[]>;
+    /**
+     * Find a document and delete it in one atomic operation. Requires a write lock for the duration of the operation.
+     *
+     * @param filter - The filter used to select the document to remove
+     * @param options - Optional settings for the command
+     */
+    findOneAndDelete(filter: Filter<TSchema>, options: FindOneAndDeleteOptions & {
+        includeResultMetadata: true;
+    }): Promise<ModifyResult<TSchema>>;
+    findOneAndDelete(filter: Filter<TSchema>, options: FindOneAndDeleteOptions & {
+        includeResultMetadata: false;
+    }): Promise<WithId<TSchema> | null>;
+    findOneAndDelete(filter: Filter<TSchema>, options: FindOneAndDeleteOptions): Promise<WithId<TSchema> | null>;
+    findOneAndDelete(filter: Filter<TSchema>): Promise<WithId<TSchema> | null>;
+    /**
+     * Find a document and replace it in one atomic operation. Requires a write lock for the duration of the operation.
+     *
+     * @param filter - The filter used to select the document to replace
+     * @param replacement - The Document that replaces the matching document
+     * @param options - Optional settings for the command
+     */
+    findOneAndReplace(filter: Filter<TSchema>, replacement: WithoutId<TSchema>, options: FindOneAndReplaceOptions & {
+        includeResultMetadata: true;
+    }): Promise<ModifyResult<TSchema>>;
+    findOneAndReplace(filter: Filter<TSchema>, replacement: WithoutId<TSchema>, options: FindOneAndReplaceOptions & {
+        includeResultMetadata: false;
+    }): Promise<WithId<TSchema> | null>;
+    findOneAndReplace(filter: Filter<TSchema>, replacement: WithoutId<TSchema>, options: FindOneAndReplaceOptions): Promise<WithId<TSchema> | null>;
+    findOneAndReplace(filter: Filter<TSchema>, replacement: WithoutId<TSchema>): Promise<WithId<TSchema> | null>;
+    /**
+     * Find a document and update it in one atomic operation. Requires a write lock for the duration of the operation.
+     *
+     * @param filter - The filter used to select the document to update
+     * @param update - Update operations to be performed on the document
+     * @param options - Optional settings for the command
+     */
+    findOneAndUpdate(filter: Filter<TSchema>, update: UpdateFilter<TSchema>, options: FindOneAndUpdateOptions & {
+        includeResultMetadata: true;
+    }): Promise<ModifyResult<TSchema>>;
+    findOneAndUpdate(filter: Filter<TSchema>, update: UpdateFilter<TSchema>, options: FindOneAndUpdateOptions & {
+        includeResultMetadata: false;
+    }): Promise<WithId<TSchema> | null>;
+    findOneAndUpdate(filter: Filter<TSchema>, update: UpdateFilter<TSchema>, options: FindOneAndUpdateOptions): Promise<WithId<TSchema> | null>;
+    findOneAndUpdate(filter: Filter<TSchema>, update: UpdateFilter<TSchema>): Promise<WithId<TSchema> | null>;
+    /**
+     * Execute an aggregation framework pipeline against the collection, needs MongoDB \>= 2.2
+     *
+     * @param pipeline - An array of aggregation pipelines to execute
+     * @param options - Optional settings for the command
+     */
+    aggregate<T extends Document = Document>(pipeline?: Document[], options?: AggregateOptions): AggregationCursor<T>;
+    /**
+     * Create a new Change Stream, watching for new changes (insertions, updates, replacements, deletions, and invalidations) in this collection.
+     *
+     * @remarks
+     * watch() accepts two generic arguments for distinct use cases:
+     * - The first is to override the schema that may be defined for this specific collection
+     * - The second is to override the shape of the change stream document entirely, if it is not provided the type will default to ChangeStreamDocument of the first argument
+     * @example
+     * By just providing the first argument I can type the change to be `ChangeStreamDocument<{ _id: number }>`
+     * ```ts
+     * collection.watch<{ _id: number }>()
+     *   .on('change', change => console.log(change._id.toFixed(4)));
+     * ```
+     *
+     * @example
+     * Passing a second argument provides a way to reflect the type changes caused by an advanced pipeline.
+     * Here, we are using a pipeline to have MongoDB filter for insert changes only and add a comment.
+     * No need start from scratch on the ChangeStreamInsertDocument type!
+     * By using an intersection we can save time and ensure defaults remain the same type!
+     * ```ts
+     * collection
+     *   .watch<Schema, ChangeStreamInsertDocument<Schema> & { comment: string }>([
+     *     { $addFields: { comment: 'big changes' } },
+     *     { $match: { operationType: 'insert' } }
+     *   ])
+     *   .on('change', change => {
+     *     change.comment.startsWith('big');
+     *     change.operationType === 'insert';
+     *     // No need to narrow in code because the generics did that for us!
+     *     expectType<Schema>(change.fullDocument);
+     *   });
+     * ```
+     *
+     * @remarks
+     * When `timeoutMS` is configured for a change stream, it will have different behaviour depending
+     * on whether the change stream is in iterator mode or emitter mode. In both cases, a change
+     * stream will time out if it does not receive a change event within `timeoutMS` of the last change
+     * event.
+     *
+     * Note that if a change stream is consistently timing out when watching a collection, database or
+     * client that is being changed, then this may be due to the server timing out before it can finish
+     * processing the existing oplog. To address this, restart the change stream with a higher
+     * `timeoutMS`.
+     *
+     * If the change stream times out the initial aggregate operation to establish the change stream on
+     * the server, then the client will close the change stream. If the getMore calls to the server
+     * time out, then the change stream will be left open, but will throw a MongoOperationTimeoutError
+     * when in iterator mode and emit an error event that returns a MongoOperationTimeoutError in
+     * emitter mode.
+     *
+     * To determine whether or not the change stream is still open following a timeout, check the
+     * {@link ChangeStream.closed} getter.
+     *
+     * @example
+     * In iterator mode, if a next() call throws a timeout error, it will attempt to resume the change stream.
+     * The next call can just be retried after this succeeds.
+     * ```ts
+     * const changeStream = collection.watch([], { timeoutMS: 100 });
+     * try {
+     *     await changeStream.next();
+     * } catch (e) {
+     *     if (e instanceof MongoOperationTimeoutError && !changeStream.closed) {
+     *       await changeStream.next();
+     *     }
+     *     throw e;
+     * }
+     * ```
+     *
+     * @example
+     * In emitter mode, if the change stream goes `timeoutMS` without emitting a change event, it will
+     * emit an error event that returns a MongoOperationTimeoutError, but will not close the change
+     * stream unless the resume attempt fails. There is no need to re-establish change listeners as
+     * this will automatically continue emitting change events once the resume attempt completes.
+     *
+     * ```ts
+     * const changeStream = collection.watch([], { timeoutMS: 100 });
+     * changeStream.on('change', console.log);
+     * changeStream.on('error', e => {
+     *     if (e instanceof MongoOperationTimeoutError && !changeStream.closed) {
+     *         // do nothing
+     *     } else {
+     *         changeStream.close();
+     *     }
+     * });
+     * ```
+     *
+     * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents. This allows for filtering (using $match) and manipulating the change stream documents.
+     * @param options - Optional settings for the command
+     * @typeParam TLocal - Type of the data being detected by the change stream
+     * @typeParam TChange - Type of the whole change stream document emitted
+     */
+    watch<TLocal extends Document = TSchema, TChange extends Document = ChangeStreamDocument<TLocal>>(pipeline?: Document[], options?: ChangeStreamOptions): ChangeStream<TLocal, TChange>;
+    /**
+     * Initiate an Out of order batch write operation. All operations will be buffered into insert/update/remove commands executed out of order.
+     *
+     * @throws MongoNotConnectedError
+     * @remarks
+     * **NOTE:** MongoClient must be connected prior to calling this method due to a known limitation in this legacy implementation.
+     * However, `collection.bulkWrite()` provides an equivalent API that does not require prior connecting.
+     */
+    initializeUnorderedBulkOp(options?: BulkWriteOptions): UnorderedBulkOperation;
+    /**
+     * Initiate an In order bulk write operation. Operations will be serially executed in the order they are added, creating a new operation for each switch in types.
+     *
+     * @throws MongoNotConnectedError
+     * @remarks
+     * **NOTE:** MongoClient must be connected prior to calling this method due to a known limitation in this legacy implementation.
+     * However, `collection.bulkWrite()` provides an equivalent API that does not require prior connecting.
+     */
+    initializeOrderedBulkOp(options?: BulkWriteOptions): OrderedBulkOperation;
+    /**
+     * An estimated count of matching documents in the db to a filter.
+     *
+     * **NOTE:** This method has been deprecated, since it does not provide an accurate count of the documents
+     * in a collection. To obtain an accurate count of documents in the collection, use {@link Collection#countDocuments| countDocuments}.
+     * To obtain an estimated count of all documents in the collection, use {@link Collection#estimatedDocumentCount| estimatedDocumentCount}.
+     *
+     * @deprecated use {@link Collection#countDocuments| countDocuments} or {@link Collection#estimatedDocumentCount| estimatedDocumentCount} instead
+     *
+     * @param filter - The filter for the count.
+     * @param options - Optional settings for the command
+     */
+    count(filter?: Filter<TSchema>, options?: CountOptions): Promise<number>;
+    /**
+     * Returns all search indexes for the current collection.
+     *
+     * @param options - The options for the list indexes operation.
+     *
+     * @remarks Only available when used against a 7.0+ Atlas cluster.
+     */
+    listSearchIndexes(options?: ListSearchIndexesOptions): ListSearchIndexesCursor;
+    /**
+     * Returns all search indexes for the current collection.
+     *
+     * @param name - The name of the index to search for.  Only indexes with matching index names will be returned.
+     * @param options - The options for the list indexes operation.
+     *
+     * @remarks Only available when used against a 7.0+ Atlas cluster.
+     */
+    listSearchIndexes(name: string, options?: ListSearchIndexesOptions): ListSearchIndexesCursor;
+    /**
+     * Creates a single search index for the collection.
+     *
+     * @param description - The index description for the new search index.
+     * @returns A promise that resolves to the name of the new search index.
+     *
+     * @remarks Only available when used against a 7.0+ Atlas cluster.
+     */
+    createSearchIndex(description: SearchIndexDescription): Promise<string>;
+    /**
+     * Creates multiple search indexes for the current collection.
+     *
+     * @param descriptions - An array of `SearchIndexDescription`s for the new search indexes.
+     * @returns A promise that resolves to an array of the newly created search index names.
+     *
+     * @remarks Only available when used against a 7.0+ Atlas cluster.
+     * @returns
+     */
+    createSearchIndexes(descriptions: SearchIndexDescription[]): Promise<string[]>;
+    /**
+     * Deletes a search index by index name.
+     *
+     * @param name - The name of the search index to be deleted.
+     *
+     * @remarks Only available when used against a 7.0+ Atlas cluster.
+     */
+    dropSearchIndex(name: string): Promise<void>;
+    /**
+     * Updates a search index by replacing the existing index definition with the provided definition.
+     *
+     * @param name - The name of the search index to update.
+     * @param definition - The new search index definition.
+     *
+     * @remarks Only available when used against a 7.0+ Atlas cluster.
+     */
+    updateSearchIndex(name: string, definition: Document): Promise<void>;
+}
+
+/** @public */
+export declare interface CollectionInfo extends Document {
+    name: string;
+    type?: string;
+    options?: Document;
+    info?: {
+        readOnly?: false;
+        uuid?: Binary;
+    };
+    idIndex?: Document;
+}
+
+/** @public */
+export declare interface CollectionOptions extends BSONSerializeOptions, WriteConcernOptions {
+    /** Specify a read concern for the collection. (only MongoDB 3.2 or higher supported) */
+    readConcern?: ReadConcernLike;
+    /** The preferred read preference (ReadPreference.PRIMARY, ReadPreference.PRIMARY_PREFERRED, ReadPreference.SECONDARY, ReadPreference.SECONDARY_PREFERRED, ReadPreference.NEAREST). */
+    readPreference?: ReadPreferenceLike;
+    /**
+     * @experimental
+     * Specifies the time an operation will run until it throws a timeout error
+     */
+    timeoutMS?: number;
+}
+
+/* Excluded from this release type: CollectionPrivate */
+
+/* Excluded from this release type: COMMAND_FAILED */
+
+/* Excluded from this release type: COMMAND_STARTED */
+
+/* Excluded from this release type: COMMAND_SUCCEEDED */
+
+/**
+ * An event indicating the failure of a given command
+ * @public
+ * @category Event
+ */
+export declare class CommandFailedEvent {
+    address: string;
+    /** Driver generated connection id */
+    connectionId?: string | number;
+    /**
+     * Server generated connection id
+     * Distinct from the connection id and is returned by the hello or legacy hello response as "connectionId" from the server on 4.2+.
+     */
+    serverConnectionId: bigint | null;
+    requestId: number;
+    duration: number;
+    commandName: string;
+    failure: Error;
+    serviceId?: ObjectId;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+    get hasServiceId(): boolean;
+}
+
+/* Excluded from this release type: CommandOperation */
+
+/** @public */
+export declare interface CommandOperationOptions extends OperationOptions, WriteConcernOptions, ExplainOptions {
+    /** Specify a read concern and level for the collection. (only MongoDB 3.2 or higher supported) */
+    readConcern?: ReadConcernLike;
+    /** Collation */
+    collation?: CollationOptions;
+    /**
+     * maxTimeMS is a server-side time limit in milliseconds for processing an operation.
+     */
+    maxTimeMS?: number;
+    /**
+     * Comment to apply to the operation.
+     *
+     * In server versions pre-4.4, 'comment' must be string.  A server
+     * error will be thrown if any other type is provided.
+     *
+     * In server versions 4.4 and above, 'comment' can be any valid BSON type.
+     */
+    comment?: unknown;
+    /** Should retry failed writes */
+    retryWrites?: boolean;
+    dbName?: string;
+    authdb?: string;
+    noResponse?: boolean;
+}
+
+/* Excluded from this release type: CommandOptions */
+
+/**
+ * An event indicating the start of a given command
+ * @public
+ * @category Event
+ */
+export declare class CommandStartedEvent {
+    commandObj?: Document;
+    requestId: number;
+    databaseName: string;
+    commandName: string;
+    command: Document;
+    address: string;
+    /** Driver generated connection id */
+    connectionId?: string | number;
+    /**
+     * Server generated connection id
+     * Distinct from the connection id and is returned by the hello or legacy hello response as "connectionId"
+     * from the server on 4.2+.
+     */
+    serverConnectionId: bigint | null;
+    serviceId?: ObjectId;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+    get hasServiceId(): boolean;
+}
+
+/**
+ * An event indicating the success of a given command
+ * @public
+ * @category Event
+ */
+export declare class CommandSucceededEvent {
+    address: string;
+    /** Driver generated connection id */
+    connectionId?: string | number;
+    /**
+     * Server generated connection id
+     * Distinct from the connection id and is returned by the hello or legacy hello response as "connectionId" from the server on 4.2+.
+     */
+    serverConnectionId: bigint | null;
+    requestId: number;
+    duration: number;
+    commandName: string;
+    reply: unknown;
+    serviceId?: ObjectId;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+    get hasServiceId(): boolean;
+}
+
+/** @public */
+export declare type CommonEvents = 'newListener' | 'removeListener';
+
+/** @public */
+export declare const Compressor: Readonly<{
+    readonly none: 0;
+    readonly snappy: 1;
+    readonly zlib: 2;
+    readonly zstd: 3;
+}>;
+
+/** @public */
+export declare type Compressor = (typeof Compressor)[CompressorName];
+
+/** @public */
+export declare type CompressorName = keyof typeof Compressor;
+
+/** @public */
+export declare type Condition<T> = AlternativeType<T> | FilterOperators<AlternativeType<T>>;
+
+/**
+ * @beta
+ * @experimental
+ *
+ * Attaches `Symbol.asyncDispose` methods to the MongoClient, Cursors, sessions and change streams
+ * if Symbol.asyncDispose is defined.
+ *
+ * It's usually not necessary to call this method - the driver attempts to attach these methods
+ * itself when its loaded.  However, sometimes the driver may be loaded before `Symbol.asyncDispose`
+ * is defined, in which case it is necessary to call this method directly.  This can happen if the
+ * application is polyfilling `Symbol.asyncDispose`.
+ *
+ * Example:
+ *
+ * ```typescript
+ * import { configureExplicitResourceManagement, MongoClient } from 'mongodb/lib/beta';
+ *
+ * Symbol.asyncDispose ??= Symbol('dispose');
+ * load();
+ *
+ * await using client = new MongoClient(...);
+ * ```
+ */
+export declare function configureExplicitResourceManagement(): void;
+
+/* Excluded from this release type: Connection */
+
+/* Excluded from this release type: CONNECTION_CHECK_OUT_FAILED */
+
+/* Excluded from this release type: CONNECTION_CHECK_OUT_STARTED */
+
+/* Excluded from this release type: CONNECTION_CHECKED_IN */
+
+/* Excluded from this release type: CONNECTION_CHECKED_OUT */
+
+/* Excluded from this release type: CONNECTION_CLOSED */
+
+/* Excluded from this release type: CONNECTION_CREATED */
+
+/* Excluded from this release type: CONNECTION_POOL_CLEARED */
+
+/* Excluded from this release type: CONNECTION_POOL_CLOSED */
+
+/* Excluded from this release type: CONNECTION_POOL_CREATED */
+
+/* Excluded from this release type: CONNECTION_POOL_READY */
+
+/* Excluded from this release type: CONNECTION_READY */
+
+/**
+ * An event published when a connection is checked into the connection pool
+ * @public
+ * @category Event
+ */
+export declare class ConnectionCheckedInEvent extends ConnectionPoolMonitoringEvent {
+    /** The id of the connection */
+    connectionId: number | '<monitor>';
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/**
+ * An event published when a connection is checked out of the connection pool
+ * @public
+ * @category Event
+ */
+export declare class ConnectionCheckedOutEvent extends ConnectionPoolMonitoringEvent {
+    /** The id of the connection */
+    connectionId: number | '<monitor>';
+    /* Excluded from this release type: name */
+    /**
+     * The time it took to check out the connection.
+     * More specifically, the time elapsed between
+     * emitting a `ConnectionCheckOutStartedEvent`
+     * and emitting this event as part of the same checking out.
+     *
+     */
+    durationMS: number;
+    /* Excluded from this release type: __constructor */
+}
+
+/**
+ * An event published when a request to check a connection out fails
+ * @public
+ * @category Event
+ */
+export declare class ConnectionCheckOutFailedEvent extends ConnectionPoolMonitoringEvent {
+    /** The reason the attempt to check out failed */
+    reason: string;
+    /* Excluded from this release type: error */
+    /* Excluded from this release type: name */
+    /**
+     * The time it took to check out the connection.
+     * More specifically, the time elapsed between
+     * emitting a `ConnectionCheckOutStartedEvent`
+     * and emitting this event as part of the same check out.
+     */
+    durationMS: number;
+    /* Excluded from this release type: __constructor */
+}
+
+/**
+ * An event published when a request to check a connection out begins
+ * @public
+ * @category Event
+ */
+export declare class ConnectionCheckOutStartedEvent extends ConnectionPoolMonitoringEvent {
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/**
+ * An event published when a connection is closed
+ * @public
+ * @category Event
+ */
+export declare class ConnectionClosedEvent extends ConnectionPoolMonitoringEvent {
+    /** The id of the connection */
+    connectionId: number | '<monitor>';
+    /** The reason the connection was closed */
+    reason: string;
+    serviceId?: ObjectId;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: error */
+    /* Excluded from this release type: __constructor */
+}
+
+/**
+ * An event published when a connection pool creates a new connection
+ * @public
+ * @category Event
+ */
+export declare class ConnectionCreatedEvent extends ConnectionPoolMonitoringEvent {
+    /** A monotonically increasing, per-pool id for the newly created connection */
+    connectionId: number | '<monitor>';
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/** @public */
+export declare type ConnectionEvents = {
+    commandStarted(event: CommandStartedEvent): void;
+    commandSucceeded(event: CommandSucceededEvent): void;
+    commandFailed(event: CommandFailedEvent): void;
+    clusterTimeReceived(clusterTime: Document): void;
+    close(): void;
+    pinned(pinType: string): void;
+    unpinned(pinType: string): void;
+};
+
+/** @public */
+export declare interface ConnectionOptions extends SupportedNodeConnectionOptions, StreamDescriptionOptions, ProxyOptions {
+    id: number | '<monitor>';
+    generation: number;
+    hostAddress: HostAddress;
+    /* Excluded from this release type: autoEncrypter */
+    serverApi?: ServerApi;
+    monitorCommands: boolean;
+    /* Excluded from this release type: connectionType */
+    credentials?: MongoCredentials;
+    /* Excluded from this release type: authProviders */
+    connectTimeoutMS?: number;
+    tls: boolean;
+    noDelay?: boolean;
+    socketTimeoutMS?: number;
+    cancellationToken?: CancellationToken;
+    metadata: ClientMetadata;
+    /* Excluded from this release type: extendedMetadata */
+    /* Excluded from this release type: mongoLogger */
+}
+
+/* Excluded from this release type: ConnectionPool */
+
+/**
+ * An event published when a connection pool is cleared
+ * @public
+ * @category Event
+ */
+export declare class ConnectionPoolClearedEvent extends ConnectionPoolMonitoringEvent {
+    /* Excluded from this release type: serviceId */
+    interruptInUseConnections?: boolean;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/**
+ * An event published when a connection pool is closed
+ * @public
+ * @category Event
+ */
+export declare class ConnectionPoolClosedEvent extends ConnectionPoolMonitoringEvent {
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/**
+ * An event published when a connection pool is created
+ * @public
+ * @category Event
+ */
+export declare class ConnectionPoolCreatedEvent extends ConnectionPoolMonitoringEvent {
+    /** The options used to create this connection pool */
+    options: Pick<ConnectionPoolOptions, 'maxPoolSize' | 'minPoolSize' | 'maxConnecting' | 'maxIdleTimeMS' | 'waitQueueTimeoutMS'>;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/** @public */
+export declare type ConnectionPoolEvents = {
+    connectionPoolCreated(event: ConnectionPoolCreatedEvent): void;
+    connectionPoolReady(event: ConnectionPoolReadyEvent): void;
+    connectionPoolClosed(event: ConnectionPoolClosedEvent): void;
+    connectionPoolCleared(event: ConnectionPoolClearedEvent): void;
+    connectionCreated(event: ConnectionCreatedEvent): void;
+    connectionReady(event: ConnectionReadyEvent): void;
+    connectionClosed(event: ConnectionClosedEvent): void;
+    connectionCheckOutStarted(event: ConnectionCheckOutStartedEvent): void;
+    connectionCheckOutFailed(event: ConnectionCheckOutFailedEvent): void;
+    connectionCheckedOut(event: ConnectionCheckedOutEvent): void;
+    connectionCheckedIn(event: ConnectionCheckedInEvent): void;
+} & Omit<ConnectionEvents, 'close' | 'message'>;
+
+/* Excluded from this release type: ConnectionPoolMetrics */
+
+/**
+ * The base export class for all monitoring events published from the connection pool
+ * @public
+ * @category Event
+ */
+export declare abstract class ConnectionPoolMonitoringEvent {
+    /** A timestamp when the event was created  */
+    time: Date;
+    /** The address (host/port pair) of the pool */
+    address: string;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/** @public */
+export declare interface ConnectionPoolOptions extends Omit<ConnectionOptions, 'id' | 'generation'> {
+    /** The maximum number of connections that may be associated with a pool at a given time. This includes in use and available connections. */
+    maxPoolSize: number;
+    /** The minimum number of connections that MUST exist at any moment in a single connection pool. */
+    minPoolSize: number;
+    /** The maximum number of connections that may be in the process of being established concurrently by the connection pool. */
+    maxConnecting: number;
+    /** The maximum amount of time a connection should remain idle in the connection pool before being marked idle. */
+    maxIdleTimeMS: number;
+    /** The maximum amount of time operation execution should wait for a connection to become available. The default is 0 which means there is no limit. */
+    waitQueueTimeoutMS: number;
+    /** If we are in load balancer mode. */
+    loadBalanced: boolean;
+    /* Excluded from this release type: minPoolSizeCheckFrequencyMS */
+}
+
+/**
+ * An event published when a connection pool is ready
+ * @public
+ * @category Event
+ */
+export declare class ConnectionPoolReadyEvent extends ConnectionPoolMonitoringEvent {
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/**
+ * An event published when a connection is ready for use
+ * @public
+ * @category Event
+ */
+export declare class ConnectionReadyEvent extends ConnectionPoolMonitoringEvent {
+    /** The id of the connection */
+    connectionId: number | '<monitor>';
+    /**
+     * The time it took to establish the connection.
+     * In accordance with the definition of establishment of a connection
+     * specified by `ConnectionPoolOptions.maxConnecting`,
+     * it is the time elapsed between emitting a `ConnectionCreatedEvent`
+     * and emitting this event as part of the same checking out.
+     *
+     * Naturally, when establishing a connection is part of checking out,
+     * this duration is not greater than
+     * `ConnectionCheckedOutEvent.duration`.
+     */
+    durationMS: number;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/** @public */
+export declare interface ConnectOptions {
+    readPreference?: ReadPreference;
+}
+
+/** @public */
+export declare interface CountDocumentsOptions extends AggregateOptions {
+    /** The number of documents to skip. */
+    skip?: number;
+    /** The maximum amount of documents to consider. */
+    limit?: number;
+}
+
+/** @public */
+export declare interface CountOptions extends CommandOperationOptions {
+    /** The number of documents to skip. */
+    skip?: number;
+    /** The maximum amounts to count before aborting. */
+    limit?: number;
+    /**
+     * Number of milliseconds to wait before aborting the query.
+     */
+    maxTimeMS?: number;
+    /** An index name hint for the query. */
+    hint?: string | Document;
+}
+
+/** @public */
+export declare interface CreateCollectionOptions extends CommandOperationOptions {
+    /** Create a capped collection */
+    capped?: boolean;
+    /** @deprecated Create an index on the _id field of the document. This option is deprecated in MongoDB 3.2+ and will be removed once no longer supported by the server. */
+    autoIndexId?: boolean;
+    /** The size of the capped collection in bytes */
+    size?: number;
+    /** The maximum number of documents in the capped collection */
+    max?: number;
+    /** Available for the MMAPv1 storage engine only to set the usePowerOf2Sizes and the noPadding flag */
+    flags?: number;
+    /** Allows users to specify configuration to the storage engine on a per-collection basis when creating a collection */
+    storageEngine?: Document;
+    /** Allows users to specify validation rules or expressions for the collection. For more information, see Document Validation */
+    validator?: Document;
+    /** Determines how strictly MongoDB applies the validation rules to existing documents during an update */
+    validationLevel?: string;
+    /** Determines whether to error on invalid documents or just warn about the violations but allow invalid documents to be inserted */
+    validationAction?: string;
+    /** Allows users to specify a default configuration for indexes when creating a collection */
+    indexOptionDefaults?: Document;
+    /** The name of the source collection or view from which to create the view. The name is not the full namespace of the collection or view (i.e., does not include the database name and implies the same database as the view to create) */
+    viewOn?: string;
+    /** An array that consists of the aggregation pipeline stage. Creates the view by applying the specified pipeline to the viewOn collection or view */
+    pipeline?: Document[];
+    /** A primary key factory function for generation of custom _id keys. */
+    pkFactory?: PkFactory;
+    /** A document specifying configuration options for timeseries collections. */
+    timeseries?: TimeSeriesCollectionOptions;
+    /** A document specifying configuration options for clustered collections. For MongoDB 5.3 and above. */
+    clusteredIndex?: ClusteredCollectionOptions;
+    /** The number of seconds after which a document in a timeseries or clustered collection expires. */
+    expireAfterSeconds?: number;
+    /** @experimental */
+    encryptedFields?: Document;
+    /**
+     * If set, enables pre-update and post-update document events to be included for any
+     * change streams that listen on this collection.
+     */
+    changeStreamPreAndPostImages?: {
+        enabled: boolean;
+    };
+}
+
+/** @public */
+export declare interface CreateIndexesOptions extends Omit<CommandOperationOptions, 'writeConcern'> {
+    /** Creates the index in the background, yielding whenever possible. */
+    background?: boolean;
+    /** Creates an unique index. */
+    unique?: boolean;
+    /** Override the autogenerated index name (useful if the resulting name is larger than 128 bytes) */
+    name?: string;
+    /** Creates a partial index based on the given filter object (MongoDB 3.2 or higher) */
+    partialFilterExpression?: Document;
+    /** Creates a sparse index. */
+    sparse?: boolean;
+    /** Allows you to expire data on indexes applied to a data (MongoDB 2.2 or higher) */
+    expireAfterSeconds?: number;
+    /** Allows users to configure the storage engine on a per-index basis when creating an index. (MongoDB 3.0 or higher) */
+    storageEngine?: Document;
+    /** (MongoDB 4.4. or higher) Specifies how many data-bearing members of a replica set, including the primary, must complete the index builds successfully before the primary marks the indexes as ready. This option accepts the same values for the "w" field in a write concern plus "votingMembers", which indicates all voting data-bearing nodes. */
+    commitQuorum?: number | string;
+    /** Specifies the index version number, either 0 or 1. */
+    version?: number;
+    weights?: Document;
+    default_language?: string;
+    language_override?: string;
+    textIndexVersion?: number;
+    '2dsphereIndexVersion'?: number;
+    bits?: number;
+    /** For geospatial indexes set the lower bound for the co-ordinates. */
+    min?: number;
+    /** For geospatial indexes set the high bound for the co-ordinates. */
+    max?: number;
+    bucketSize?: number;
+    wildcardProjection?: Document;
+    /** Specifies that the index should exist on the target collection but should not be used by the query planner when executing operations. (MongoDB 4.4 or higher) */
+    hidden?: boolean;
+}
+
+/** @public */
+export declare type CSFLEKMSTlsOptions = {
+    aws?: ClientEncryptionTlsOptions;
+    gcp?: ClientEncryptionTlsOptions;
+    kmip?: ClientEncryptionTlsOptions;
+    local?: ClientEncryptionTlsOptions;
+    azure?: ClientEncryptionTlsOptions;
+    [key: string]: ClientEncryptionTlsOptions | undefined;
+};
+
+/* Excluded from this release type: CSOTTimeoutContext */
+
+/* Excluded from this release type: CSOTTimeoutContextOptions */
+
+/** @public */
+export declare const CURSOR_FLAGS: readonly ["tailable", "oplogReplay", "noCursorTimeout", "awaitData", "exhaust", "partial"];
+
+/** @public */
+export declare type CursorFlag = (typeof CURSOR_FLAGS)[number];
+
+/* Excluded from this release type: CursorResponse */
+
+/** @public */
+export declare interface CursorStreamOptions {
+    /** A transformation method applied to each document emitted by the stream */
+    transform?(this: void, doc: Document): Document;
+}
+
+/* Excluded from this release type: CursorTimeoutContext */
+
+/**
+ * @public
+ * @experimental
+ * Specifies how `timeoutMS` is applied to the cursor. Can be either `'cursorLifeTime'` or `'iteration'`
+ * When set to `'iteration'`, the deadline specified by `timeoutMS` applies to each call of
+ * `cursor.next()`.
+ * When set to `'cursorLifetime'`, the deadline applies to the life of the entire cursor.
+ *
+ * Depending on the type of cursor being used, this option has different default values.
+ * For non-tailable cursors, this value defaults to `'cursorLifetime'`
+ * For tailable cursors, this value defaults to `'iteration'` since tailable cursors, by
+ * definition can have an arbitrarily long lifetime.
+ *
+ * @example
+ * ```ts
+ * const cursor = collection.find({}, {timeoutMS: 100, timeoutMode: 'iteration'});
+ * for await (const doc of cursor) {
+ *  // process doc
+ *  // This will throw a timeout error if any of the iterator's `next()` calls takes more than 100ms, but
+ *  // will continue to iterate successfully otherwise, regardless of the number of batches.
+ * }
+ * ```
+ *
+ * @example
+ * ```ts
+ * const cursor = collection.find({}, { timeoutMS: 1000, timeoutMode: 'cursorLifetime' });
+ * const docs = await cursor.toArray(); // This entire line will throw a timeout error if all batches are not fetched and returned within 1000ms.
+ * ```
+ */
+export declare const CursorTimeoutMode: Readonly<{
+    readonly ITERATION: "iteration";
+    readonly LIFETIME: "cursorLifetime";
+}>;
+
+/**
+ * @public
+ * @experimental
+ */
+export declare type CursorTimeoutMode = (typeof CursorTimeoutMode)[keyof typeof CursorTimeoutMode];
+
+/**
+ * @public
+ * The schema for a DataKey in the key vault collection.
+ */
+export declare interface DataKey {
+    _id: UUID;
+    version?: number;
+    keyAltNames?: string[];
+    keyMaterial: Binary;
+    creationDate: Date;
+    updateDate: Date;
+    status: number;
+    masterKey: Document;
+}
+
+/**
+ * The **Db** class is a class that represents a MongoDB Database.
+ * @public
+ *
+ * @example
+ * ```ts
+ * import { MongoClient } from 'mongodb';
+ *
+ * interface Pet {
+ *   name: string;
+ *   kind: 'dog' | 'cat' | 'fish';
+ * }
+ *
+ * const client = new MongoClient('mongodb://localhost:27017');
+ * const db = client.db();
+ *
+ * // Create a collection that validates our union
+ * await db.createCollection<Pet>('pets', {
+ *   validator: { $expr: { $in: ['$kind', ['dog', 'cat', 'fish']] } }
+ * })
+ * ```
+ */
+export declare class Db {
+    /* Excluded from this release type: s */
+    /* Excluded from this release type: client */
+    static SYSTEM_NAMESPACE_COLLECTION: string;
+    static SYSTEM_INDEX_COLLECTION: string;
+    static SYSTEM_PROFILE_COLLECTION: string;
+    static SYSTEM_USER_COLLECTION: string;
+    static SYSTEM_COMMAND_COLLECTION: string;
+    static SYSTEM_JS_COLLECTION: string;
+    /**
+     * Creates a new Db instance.
+     *
+     * Db name cannot contain a dot, the server may apply more restrictions when an operation is run.
+     *
+     * @param client - The MongoClient for the database.
+     * @param databaseName - The name of the database this instance represents.
+     * @param options - Optional settings for Db construction.
+     */
+    constructor(client: MongoClient, databaseName: string, options?: DbOptions);
+    get databaseName(): string;
+    get options(): DbOptions | undefined;
+    /**
+     * Check if a secondary can be used (because the read preference is *not* set to primary)
+     */
+    get secondaryOk(): boolean;
+    get readConcern(): ReadConcern | undefined;
+    /**
+     * The current readPreference of the Db. If not explicitly defined for
+     * this Db, will be inherited from the parent MongoClient
+     */
+    get readPreference(): ReadPreference;
+    get bsonOptions(): BSONSerializeOptions;
+    get writeConcern(): WriteConcern | undefined;
+    get namespace(): string;
+    get timeoutMS(): number | undefined;
+    /**
+     * Create a new collection on a server with the specified options. Use this to create capped collections.
+     * More information about command options available at https://www.mongodb.com/docs/manual/reference/command/create/
+     *
+     * Collection namespace validation is performed server-side.
+     *
+     * @param name - The name of the collection to create
+     * @param options - Optional settings for the command
+     */
+    createCollection<TSchema extends Document = Document>(name: string, options?: CreateCollectionOptions): Promise<Collection<TSchema>>;
+    /**
+     * Execute a command
+     *
+     * @remarks
+     * This command does not inherit options from the MongoClient.
+     *
+     * The driver will ensure the following fields are attached to the command sent to the server:
+     * - `lsid` - sourced from an implicit session or options.session
+     * - `$readPreference` - defaults to primary or can be configured by options.readPreference
+     * - `$db` - sourced from the name of this database
+     *
+     * If the client has a serverApi setting:
+     * - `apiVersion`
+     * - `apiStrict`
+     * - `apiDeprecationErrors`
+     *
+     * When in a transaction:
+     * - `readConcern` - sourced from readConcern set on the TransactionOptions
+     * - `writeConcern` - sourced from writeConcern set on the TransactionOptions
+     *
+     * Attaching any of the above fields to the command will have no effect as the driver will overwrite the value.
+     *
+     * @param command - The command to run
+     * @param options - Optional settings for the command
+     */
+    command(command: Document, options?: RunCommandOptions): Promise<Document>;
+    /**
+     * Execute an aggregation framework pipeline against the database.
+     *
+     * @param pipeline - An array of aggregation stages to be executed
+     * @param options - Optional settings for the command
+     */
+    aggregate<T extends Document = Document>(pipeline?: Document[], options?: AggregateOptions): AggregationCursor<T>;
+    /** Return the Admin db instance */
+    admin(): Admin;
+    /**
+     * Returns a reference to a MongoDB Collection. If it does not exist it will be created implicitly.
+     *
+     * Collection namespace validation is performed server-side.
+     *
+     * @param name - the collection name we wish to access.
+     * @returns return the new Collection instance
+     */
+    collection<TSchema extends Document = Document>(name: string, options?: CollectionOptions): Collection<TSchema>;
+    /**
+     * Get all the db statistics.
+     *
+     * @param options - Optional settings for the command
+     */
+    stats(options?: DbStatsOptions): Promise<Document>;
+    /**
+     * List all collections of this database with optional filter
+     *
+     * @param filter - Query to filter collections by
+     * @param options - Optional settings for the command
+     */
+    listCollections(filter: Document, options: Exclude<ListCollectionsOptions, 'nameOnly'> & {
+        nameOnly: true;
+    }): ListCollectionsCursor<Pick<CollectionInfo, 'name' | 'type'>>;
+    listCollections(filter: Document, options: Exclude<ListCollectionsOptions, 'nameOnly'> & {
+        nameOnly: false;
+    }): ListCollectionsCursor<CollectionInfo>;
+    listCollections<T extends Pick<CollectionInfo, 'name' | 'type'> | CollectionInfo = Pick<CollectionInfo, 'name' | 'type'> | CollectionInfo>(filter?: Document, options?: ListCollectionsOptions): ListCollectionsCursor<T>;
+    /**
+     * Rename a collection.
+     *
+     * @remarks
+     * This operation does not inherit options from the MongoClient.
+     *
+     * @param fromCollection - Name of current collection to rename
+     * @param toCollection - New name of of the collection
+     * @param options - Optional settings for the command
+     */
+    renameCollection<TSchema extends Document = Document>(fromCollection: string, toCollection: string, options?: RenameOptions): Promise<Collection<TSchema>>;
+    /**
+     * Drop a collection from the database, removing it permanently. New accesses will create a new collection.
+     *
+     * @param name - Name of collection to drop
+     * @param options - Optional settings for the command
+     */
+    dropCollection(name: string, options?: DropCollectionOptions): Promise<boolean>;
+    /**
+     * Drop a database, removing it permanently from the server.
+     *
+     * @param options - Optional settings for the command
+     */
+    dropDatabase(options?: DropDatabaseOptions): Promise<boolean>;
+    /**
+     * Fetch all collections for the current db.
+     *
+     * @param options - Optional settings for the command
+     */
+    collections(options?: ListCollectionsOptions): Promise<Collection[]>;
+    /**
+     * Creates an index on the db and collection.
+     *
+     * @param name - Name of the collection to create the index on.
+     * @param indexSpec - Specify the field to index, or an index specification
+     * @param options - Optional settings for the command
+     */
+    createIndex(name: string, indexSpec: IndexSpecification, options?: CreateIndexesOptions): Promise<string>;
+    /**
+     * Remove a user from a database
+     *
+     * @param username - The username to remove
+     * @param options - Optional settings for the command
+     */
+    removeUser(username: string, options?: RemoveUserOptions): Promise<boolean>;
+    /**
+     * Set the current profiling level of MongoDB
+     *
+     * @param level - The new profiling level (off, slow_only, all).
+     * @param options - Optional settings for the command
+     */
+    setProfilingLevel(level: ProfilingLevel, options?: SetProfilingLevelOptions): Promise<ProfilingLevel>;
+    /**
+     * Retrieve the current profiling Level for MongoDB
+     *
+     * @param options - Optional settings for the command
+     */
+    profilingLevel(options?: ProfilingLevelOptions): Promise<string>;
+    /**
+     * Retrieves this collections index info.
+     *
+     * @param name - The name of the collection.
+     * @param options - Optional settings for the command
+     */
+    indexInformation(name: string, options: IndexInformationOptions & {
+        full: true;
+    }): Promise<IndexDescriptionInfo[]>;
+    indexInformation(name: string, options: IndexInformationOptions & {
+        full?: false;
+    }): Promise<IndexDescriptionCompact>;
+    indexInformation(name: string, options: IndexInformationOptions): Promise<IndexDescriptionCompact | IndexDescriptionInfo[]>;
+    indexInformation(name: string): Promise<IndexDescriptionCompact>;
+    /**
+     * Create a new Change Stream, watching for new changes (insertions, updates,
+     * replacements, deletions, and invalidations) in this database. Will ignore all
+     * changes to system collections.
+     *
+     * @remarks
+     * watch() accepts two generic arguments for distinct use cases:
+     * - The first is to provide the schema that may be defined for all the collections within this database
+     * - The second is to override the shape of the change stream document entirely, if it is not provided the type will default to ChangeStreamDocument of the first argument
+     *
+     * @remarks
+     * When `timeoutMS` is configured for a change stream, it will have different behaviour depending
+     * on whether the change stream is in iterator mode or emitter mode. In both cases, a change
+     * stream will time out if it does not receive a change event within `timeoutMS` of the last change
+     * event.
+     *
+     * Note that if a change stream is consistently timing out when watching a collection, database or
+     * client that is being changed, then this may be due to the server timing out before it can finish
+     * processing the existing oplog. To address this, restart the change stream with a higher
+     * `timeoutMS`.
+     *
+     * If the change stream times out the initial aggregate operation to establish the change stream on
+     * the server, then the client will close the change stream. If the getMore calls to the server
+     * time out, then the change stream will be left open, but will throw a MongoOperationTimeoutError
+     * when in iterator mode and emit an error event that returns a MongoOperationTimeoutError in
+     * emitter mode.
+     *
+     * To determine whether or not the change stream is still open following a timeout, check the
+     * {@link ChangeStream.closed} getter.
+     *
+     * @example
+     * In iterator mode, if a next() call throws a timeout error, it will attempt to resume the change stream.
+     * The next call can just be retried after this succeeds.
+     * ```ts
+     * const changeStream = collection.watch([], { timeoutMS: 100 });
+     * try {
+     *     await changeStream.next();
+     * } catch (e) {
+     *     if (e instanceof MongoOperationTimeoutError && !changeStream.closed) {
+     *       await changeStream.next();
+     *     }
+     *     throw e;
+     * }
+     * ```
+     *
+     * @example
+     * In emitter mode, if the change stream goes `timeoutMS` without emitting a change event, it will
+     * emit an error event that returns a MongoOperationTimeoutError, but will not close the change
+     * stream unless the resume attempt fails. There is no need to re-establish change listeners as
+     * this will automatically continue emitting change events once the resume attempt completes.
+     *
+     * ```ts
+     * const changeStream = collection.watch([], { timeoutMS: 100 });
+     * changeStream.on('change', console.log);
+     * changeStream.on('error', e => {
+     *     if (e instanceof MongoOperationTimeoutError && !changeStream.closed) {
+     *         // do nothing
+     *     } else {
+     *         changeStream.close();
+     *     }
+     * });
+     * ```
+     * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents. This allows for filtering (using $match) and manipulating the change stream documents.
+     * @param options - Optional settings for the command
+     * @typeParam TSchema - Type of the data being detected by the change stream
+     * @typeParam TChange - Type of the whole change stream document emitted
+     */
+    watch<TSchema extends Document = Document, TChange extends Document = ChangeStreamDocument<TSchema>>(pipeline?: Document[], options?: ChangeStreamOptions): ChangeStream<TSchema, TChange>;
+    /**
+     * A low level cursor API providing basic driver functionality:
+     * - ClientSession management
+     * - ReadPreference for server selection
+     * - Running getMores automatically when a local batch is exhausted
+     *
+     * @param command - The command that will start a cursor on the server.
+     * @param options - Configurations for running the command, bson options will apply to getMores
+     */
+    runCursorCommand(command: Document, options?: RunCursorCommandOptions): RunCommandCursor;
+}
+
+/* Excluded from this release type: DB_AGGREGATE_COLLECTION */
+
+/** @public */
+export declare interface DbOptions extends BSONSerializeOptions, WriteConcernOptions {
+    /** If the database authentication is dependent on another databaseName. */
+    authSource?: string;
+    /** Force server to assign _id values instead of driver. */
+    forceServerObjectId?: boolean;
+    /** The preferred read preference (ReadPreference.PRIMARY, ReadPreference.PRIMARY_PREFERRED, ReadPreference.SECONDARY, ReadPreference.SECONDARY_PREFERRED, ReadPreference.NEAREST). */
+    readPreference?: ReadPreferenceLike;
+    /** A primary key factory object for generation of custom _id keys. */
+    pkFactory?: PkFactory;
+    /** Specify a read concern for the collection. (only MongoDB 3.2 or higher supported) */
+    readConcern?: ReadConcern;
+    /** Should retry failed writes */
+    retryWrites?: boolean;
+    /**
+     * @experimental
+     * Specifies the time an operation will run until it throws a timeout error
+     */
+    timeoutMS?: number;
+}
+
+/* Excluded from this release type: DbPrivate */
+export { DBRef }
+
+/** @public */
+export declare interface DbStatsOptions extends CommandOperationOptions {
+    /** Divide the returned sizes by scale value. */
+    scale?: number;
+}
+
+export { Decimal128 }
+
+/** @public */
+export declare interface DeleteManyModel<TSchema extends Document = Document> {
+    /** The filter to limit the deleted documents. */
+    filter: Filter<TSchema>;
+    /** Specifies a collation. */
+    collation?: CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: Hint;
+}
+
+/** @public */
+export declare interface DeleteOneModel<TSchema extends Document = Document> {
+    /** The filter to limit the deleted documents. */
+    filter: Filter<TSchema>;
+    /** Specifies a collation. */
+    collation?: CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: Hint;
+}
+
+/** @public */
+export declare interface DeleteOptions extends CommandOperationOptions, WriteConcernOptions {
+    /** If true, when an insert fails, don't execute the remaining writes. If false, continue with remaining inserts when one fails. */
+    ordered?: boolean;
+    /** Specifies the collation to use for the operation */
+    collation?: CollationOptions;
+    /** Specify that the update query should only consider plans using the hinted index */
+    hint?: string | Document;
+    /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+    let?: Document;
+}
+
+/** @public */
+export declare interface DeleteResult {
+    /** Indicates whether this write result was acknowledged. If not, then all other members of this result will be undefined. */
+    acknowledged: boolean;
+    /** The number of documents that were deleted */
+    deletedCount: number;
+}
+
+/** @public */
+export declare interface DeleteStatement {
+    /** The query that matches documents to delete. */
+    q: Document;
+    /** The number of matching documents to delete. */
+    limit: number;
+    /** Specifies the collation to use for the operation. */
+    collation?: CollationOptions;
+    /** A document or string that specifies the index to use to support the query predicate. */
+    hint?: Hint;
+}
+
+export { deserialize }
+
+/** @public */
+export declare type DistinctOptions = CommandOperationOptions;
+
+export { Document }
+
+export { Double }
+
+/** @public */
+export declare interface DriverInfo {
+    name?: string;
+    version?: string;
+    platform?: string;
+}
+
+/** @public */
+export declare interface DropCollectionOptions extends CommandOperationOptions {
+    /** @experimental */
+    encryptedFields?: Document;
+}
+
+/** @public */
+export declare type DropDatabaseOptions = CommandOperationOptions;
+
+/** @public */
+export declare type DropIndexesOptions = CommandOperationOptions;
+
+/* Excluded from this release type: Encrypter */
+
+/* Excluded from this release type: EncrypterOptions */
+
+/** @public */
+export declare interface EndSessionOptions {
+    /* Excluded from this release type: error */
+    force?: boolean;
+    forceClear?: boolean;
+    /** Specifies the time an operation will run until it throws a timeout error */
+    timeoutMS?: number;
+}
+
+/** TypeScript Omit (Exclude to be specific) does not work for objects with an "any" indexed type, and breaks discriminated unions @public */
+export declare type EnhancedOmit<TRecordOrUnion, KeyUnion> = string extends keyof TRecordOrUnion ? TRecordOrUnion : TRecordOrUnion extends any ? Pick<TRecordOrUnion, Exclude<keyof TRecordOrUnion, KeyUnion>> : never;
+
+/** @public */
+export declare interface ErrorDescription extends Document {
+    message?: string;
+    errmsg?: string;
+    $err?: string;
+    errorLabels?: string[];
+    errInfo?: Document;
+}
+
+/** @public */
+export declare interface EstimatedDocumentCountOptions extends CommandOperationOptions {
+    /**
+     * The maximum amount of time to allow the operation to run.
+     *
+     * This option is sent only if the caller explicitly provides a value. The default is to not send a value.
+     */
+    maxTimeMS?: number;
+}
+
+/** @public */
+export declare type EventEmitterWithState = {
+    /* Excluded from this release type: stateChanged */
+};
+
+/**
+ * Event description type
+ * @public
+ */
+export declare type EventsDescription = Record<string, GenericListener>;
+
+/* Excluded from this release type: Explain */
+
+/**
+ * @public
+ *
+ * A base class for any cursors that have `explain()` methods.
+ */
+export declare abstract class ExplainableCursor<TSchema> extends AbstractCursor<TSchema> {
+    /** Execute the explain for the cursor */
+    abstract explain(): Promise<Document>;
+    abstract explain(verbosity: ExplainVerbosityLike | ExplainCommandOptions): Promise<Document>;
+    abstract explain(options: {
+        timeoutMS?: number;
+    }): Promise<Document>;
+    abstract explain(verbosity: ExplainVerbosityLike | ExplainCommandOptions, options: {
+        timeoutMS?: number;
+    }): Promise<Document>;
+    abstract explain(verbosity?: ExplainVerbosityLike | ExplainCommandOptions | {
+        timeoutMS?: number;
+    }, options?: {
+        timeoutMS?: number;
+    }): Promise<Document>;
+    protected resolveExplainTimeoutOptions(verbosity?: ExplainVerbosityLike | ExplainCommandOptions | {
+        timeoutMS?: number;
+    }, options?: {
+        timeoutMS?: number;
+    }): {
+        timeout?: {
+            timeoutMS?: number;
+        };
+        explain?: ExplainVerbosityLike | ExplainCommandOptions;
+    };
+}
+
+/** @public */
+export declare interface ExplainCommandOptions {
+    /** The explain verbosity for the command. */
+    verbosity: ExplainVerbosity;
+    /** The maxTimeMS setting for the command. */
+    maxTimeMS?: number;
+}
+
+/**
+ * @public
+ *
+ * When set, this configures an explain command.  Valid values are boolean (for legacy compatibility,
+ * see {@link ExplainVerbosityLike}), a string containing the explain verbosity, or an object containing the verbosity and
+ * an optional maxTimeMS.
+ *
+ * Examples of valid usage:
+ *
+ * ```typescript
+ * collection.find({ name: 'john doe' }, { explain: true });
+ * collection.find({ name: 'john doe' }, { explain: false });
+ * collection.find({ name: 'john doe' }, { explain: 'queryPlanner' });
+ * collection.find({ name: 'john doe' }, { explain: { verbosity: 'queryPlanner' } });
+ * ```
+ *
+ * maxTimeMS can be configured to limit the amount of time the server
+ * spends executing an explain by providing an object:
+ *
+ * ```typescript
+ * // limits the `explain` command to no more than 2 seconds
+ * collection.find({ name: 'john doe' }, {
+ *   explain:  {
+ *    verbosity: 'queryPlanner',
+ *    maxTimeMS: 2000
+ *  }
+ * });
+ * ```
+ */
+export declare interface ExplainOptions {
+    /** Specifies the verbosity mode for the explain output. */
+    explain?: ExplainVerbosityLike | ExplainCommandOptions;
+}
+
+/** @public */
+export declare const ExplainVerbosity: Readonly<{
+    readonly queryPlanner: "queryPlanner";
+    readonly queryPlannerExtended: "queryPlannerExtended";
+    readonly executionStats: "executionStats";
+    readonly allPlansExecution: "allPlansExecution";
+}>;
+
+/** @public */
+export declare type ExplainVerbosity = string;
+
+/**
+ * For backwards compatibility, true is interpreted as "allPlansExecution"
+ * and false as "queryPlanner".
+ * @public
+ */
+export declare type ExplainVerbosityLike = ExplainVerbosity | boolean;
+
+/** A MongoDB filter can be some portion of the schema or a set of operators @public */
+export declare type Filter<TSchema> = {
+    [P in keyof WithId<TSchema>]?: Condition<WithId<TSchema>[P]>;
+} & RootFilterOperators<WithId<TSchema>>;
+
+/** @public */
+export declare type FilterOperations<T> = T extends Record<string, any> ? {
+    [key in keyof T]?: FilterOperators<T[key]>;
+} : FilterOperators<T>;
+
+/** @public */
+export declare interface FilterOperators<TValue> extends NonObjectIdLikeDocument {
+    $eq?: TValue;
+    $gt?: TValue;
+    $gte?: TValue;
+    $in?: ReadonlyArray<TValue>;
+    $lt?: TValue;
+    $lte?: TValue;
+    $ne?: TValue;
+    $nin?: ReadonlyArray<TValue>;
+    $not?: TValue extends string ? FilterOperators<TValue> | RegExp : FilterOperators<TValue>;
+    /**
+     * When `true`, `$exists` matches the documents that contain the field,
+     * including documents where the field value is null.
+     */
+    $exists?: boolean;
+    $type?: BSONType | BSONTypeAlias;
+    $expr?: Record<string, any>;
+    $jsonSchema?: Record<string, any>;
+    $mod?: TValue extends number ? [number, number] : never;
+    $regex?: TValue extends string ? RegExp | BSONRegExp | string : never;
+    $options?: TValue extends string ? string : never;
+    $geoIntersects?: {
+        $geometry: Document;
+    };
+    $geoWithin?: Document;
+    $near?: Document;
+    $nearSphere?: Document;
+    $maxDistance?: number;
+    $all?: ReadonlyArray<any>;
+    $elemMatch?: Document;
+    $size?: TValue extends ReadonlyArray<any> ? number : never;
+    $bitsAllClear?: BitwiseFilter;
+    $bitsAllSet?: BitwiseFilter;
+    $bitsAnyClear?: BitwiseFilter;
+    $bitsAnySet?: BitwiseFilter;
+    $rand?: Record<string, never>;
+}
+
+/** @public */
+export declare class FindCursor<TSchema = any> extends ExplainableCursor<TSchema> {
+    /* Excluded from this release type: cursorFilter */
+    /* Excluded from this release type: numReturned */
+    /* Excluded from this release type: findOptions */
+    /* Excluded from this release type: __constructor */
+    clone(): FindCursor<TSchema>;
+    map<T>(transform: (doc: TSchema) => T): FindCursor<T>;
+    /* Excluded from this release type: _initialize */
+    /* Excluded from this release type: getMore */
+    /**
+     * Get the count of documents for this cursor
+     * @deprecated Use `collection.estimatedDocumentCount` or `collection.countDocuments` instead
+     */
+    count(options?: CountOptions): Promise<number>;
+    /** Execute the explain for the cursor */
+    explain(): Promise<Document>;
+    explain(verbosity: ExplainVerbosityLike | ExplainCommandOptions): Promise<Document>;
+    explain(options: {
+        timeoutMS?: number;
+    }): Promise<Document>;
+    explain(verbosity: ExplainVerbosityLike | ExplainCommandOptions, options: {
+        timeoutMS?: number;
+    }): Promise<Document>;
+    /** Set the cursor query */
+    filter(filter: Document): this;
+    /**
+     * Set the cursor hint
+     *
+     * @param hint - If specified, then the query system will only consider plans using the hinted index.
+     */
+    hint(hint: Hint): this;
+    /**
+     * Set the cursor min
+     *
+     * @param min - Specify a $min value to specify the inclusive lower bound for a specific index in order to constrain the results of find(). The $min specifies the lower bound for all keys of a specific index in order.
+     */
+    min(min: Document): this;
+    /**
+     * Set the cursor max
+     *
+     * @param max - Specify a $max value to specify the exclusive upper bound for a specific index in order to constrain the results of find(). The $max specifies the upper bound for all keys of a specific index in order.
+     */
+    max(max: Document): this;
+    /**
+     * Set the cursor returnKey.
+     * If set to true, modifies the cursor to only return the index field or fields for the results of the query, rather than documents.
+     * If set to true and the query does not use an index to perform the read operation, the returned documents will not contain any fields.
+     *
+     * @param value - the returnKey value.
+     */
+    returnKey(value: boolean): this;
+    /**
+     * Modifies the output of a query by adding a field $recordId to matching documents. $recordId is the internal key which uniquely identifies a document in a collection.
+     *
+     * @param value - The $showDiskLoc option has now been deprecated and replaced with the showRecordId field. $showDiskLoc will still be accepted for OP_QUERY stye find.
+     */
+    showRecordId(value: boolean): this;
+    /**
+     * Add a query modifier to the cursor query
+     *
+     * @param name - The query modifier (must start with $, such as $orderby etc)
+     * @param value - The modifier value.
+     */
+    addQueryModifier(name: string, value: string | boolean | number | Document): this;
+    /**
+     * Add a comment to the cursor query allowing for tracking the comment in the log.
+     *
+     * @param value - The comment attached to this query.
+     */
+    comment(value: string): this;
+    /**
+     * Set a maxAwaitTimeMS on a tailing cursor query to allow to customize the timeout value for the option awaitData (Only supported on MongoDB 3.2 or higher, ignored otherwise)
+     *
+     * @param value - Number of milliseconds to wait before aborting the tailed query.
+     */
+    maxAwaitTimeMS(value: number): this;
+    /**
+     * Set a maxTimeMS on the cursor query, allowing for hard timeout limits on queries (Only supported on MongoDB 2.6 or higher)
+     *
+     * @param value - Number of milliseconds to wait before aborting the query.
+     */
+    maxTimeMS(value: number): this;
+    /**
+     * Add a project stage to the aggregation pipeline
+     *
+     * @remarks
+     * In order to strictly type this function you must provide an interface
+     * that represents the effect of your projection on the result documents.
+     *
+     * By default chaining a projection to your cursor changes the returned type to the generic
+     * {@link Document} type.
+     * You should specify a parameterized type to have assertions on your final results.
+     *
+     * @example
+     * ```typescript
+     * // Best way
+     * const docs: FindCursor<{ a: number }> = cursor.project<{ a: number }>({ _id: 0, a: true });
+     * // Flexible way
+     * const docs: FindCursor<Document> = cursor.project({ _id: 0, a: true });
+     * ```
+     *
+     * @remarks
+     *
+     * **Note for Typescript Users:** adding a transform changes the return type of the iteration of this cursor,
+     * it **does not** return a new instance of a cursor. This means when calling project,
+     * you should always assign the result to a new variable in order to get a correctly typed cursor variable.
+     * Take note of the following example:
+     *
+     * @example
+     * ```typescript
+     * const cursor: FindCursor<{ a: number; b: string }> = coll.find();
+     * const projectCursor = cursor.project<{ a: number }>({ _id: 0, a: true });
+     * const aPropOnlyArray: {a: number}[] = await projectCursor.toArray();
+     *
+     * // or always use chaining and save the final cursor
+     *
+     * const cursor = coll.find().project<{ a: string }>({
+     *   _id: 0,
+     *   a: { $convert: { input: '$a', to: 'string' }
+     * }});
+     * ```
+     */
+    project<T extends Document = Document>(value: Document): FindCursor<T>;
+    /**
+     * Sets the sort order of the cursor query.
+     *
+     * @param sort - The key or keys set for the sort.
+     * @param direction - The direction of the sorting (1 or -1).
+     */
+    sort(sort: Sort | string, direction?: SortDirection): this;
+    /**
+     * Allows disk use for blocking sort operations exceeding 100MB memory. (MongoDB 3.2 or higher)
+     *
+     * @remarks
+     * {@link https://www.mongodb.com/docs/manual/reference/command/find/#find-cmd-allowdiskuse | find command allowDiskUse documentation}
+     */
+    allowDiskUse(allow?: boolean): this;
+    /**
+     * Set the collation options for the cursor.
+     *
+     * @param value - The cursor collation options (MongoDB 3.4 or higher) settings for update operation (see 3.4 documentation for available fields).
+     */
+    collation(value: CollationOptions): this;
+    /**
+     * Set the limit for the cursor.
+     *
+     * @param value - The limit for the cursor query.
+     */
+    limit(value: number): this;
+    /**
+     * Set the skip for the cursor.
+     *
+     * @param value - The skip for the cursor query.
+     */
+    skip(value: number): this;
+}
+
+/** @public */
+export declare interface FindOneAndDeleteOptions extends CommandOperationOptions {
+    /** An optional hint for query optimization. See the {@link https://www.mongodb.com/docs/manual/reference/command/update/#update-command-hint|update command} reference for more information.*/
+    hint?: Document;
+    /** Limits the fields to return for all matching documents. */
+    projection?: Document;
+    /** Determines which document the operation modifies if the query selects multiple documents. */
+    sort?: Sort;
+    /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+    let?: Document;
+    /**
+     * Return the ModifyResult instead of the modified document. Defaults to false
+     */
+    includeResultMetadata?: boolean;
+}
+
+/** @public */
+export declare interface FindOneAndReplaceOptions extends CommandOperationOptions {
+    /** Allow driver to bypass schema validation. */
+    bypassDocumentValidation?: boolean;
+    /** An optional hint for query optimization. See the {@link https://www.mongodb.com/docs/manual/reference/command/update/#update-command-hint|update command} reference for more information.*/
+    hint?: Document;
+    /** Limits the fields to return for all matching documents. */
+    projection?: Document;
+    /** When set to 'after', returns the updated document rather than the original. The default is 'before'.  */
+    returnDocument?: ReturnDocument;
+    /** Determines which document the operation modifies if the query selects multiple documents. */
+    sort?: Sort;
+    /** Upsert the document if it does not exist. */
+    upsert?: boolean;
+    /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+    let?: Document;
+    /**
+     * Return the ModifyResult instead of the modified document. Defaults to false
+     */
+    includeResultMetadata?: boolean;
+}
+
+/** @public */
+export declare interface FindOneAndUpdateOptions extends CommandOperationOptions {
+    /** Optional list of array filters referenced in filtered positional operators */
+    arrayFilters?: Document[];
+    /** Allow driver to bypass schema validation. */
+    bypassDocumentValidation?: boolean;
+    /** An optional hint for query optimization. See the {@link https://www.mongodb.com/docs/manual/reference/command/update/#update-command-hint|update command} reference for more information.*/
+    hint?: Document;
+    /** Limits the fields to return for all matching documents. */
+    projection?: Document;
+    /** When set to 'after', returns the updated document rather than the original. The default is 'before'.  */
+    returnDocument?: ReturnDocument;
+    /** Determines which document the operation modifies if the query selects multiple documents. */
+    sort?: Sort;
+    /** Upsert the document if it does not exist. */
+    upsert?: boolean;
+    /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+    let?: Document;
+    /**
+     * Return the ModifyResult instead of the modified document. Defaults to false
+     */
+    includeResultMetadata?: boolean;
+}
+
+/**
+ * A builder object that is returned from {@link BulkOperationBase#find}.
+ * Is used to build a write operation that involves a query filter.
+ *
+ * @public
+ */
+export declare class FindOperators {
+    bulkOperation: BulkOperationBase;
+    /* Excluded from this release type: __constructor */
+    /** Add a multiple update operation to the bulk operation */
+    update(updateDocument: Document | Document[]): BulkOperationBase;
+    /** Add a single update operation to the bulk operation */
+    updateOne(updateDocument: Document | Document[]): BulkOperationBase;
+    /** Add a replace one operation to the bulk operation */
+    replaceOne(replacement: Document): BulkOperationBase;
+    /** Add a delete one operation to the bulk operation */
+    deleteOne(): BulkOperationBase;
+    /** Add a delete many operation to the bulk operation */
+    delete(): BulkOperationBase;
+    /** Upsert modifier for update bulk operation, noting that this operation is an upsert. */
+    upsert(): this;
+    /** Specifies the collation for the query condition. */
+    collation(collation: CollationOptions): this;
+    /** Specifies arrayFilters for UpdateOne or UpdateMany bulk operations. */
+    arrayFilters(arrayFilters: Document[]): this;
+    /** Specifies hint for the bulk operation. */
+    hint(hint: Hint): this;
+}
+
+/**
+ * @public
+ * @typeParam TSchema - Unused schema definition, deprecated usage, only specify `FindOptions` with no generic
+ */
+export declare interface FindOptions<TSchema extends Document = Document> extends Omit<CommandOperationOptions, 'writeConcern' | 'explain'>, AbstractCursorOptions {
+    /** Sets the limit of documents returned in the query. */
+    limit?: number;
+    /** Set to sort the documents coming back from the query. Array of indexes, `[['a', 1]]` etc. */
+    sort?: Sort;
+    /** The fields to return in the query. Object of fields to either include or exclude (one of, not both), `{'a':1, 'b': 1}` **or** `{'a': 0, 'b': 0}` */
+    projection?: Document;
+    /** Set to skip N documents ahead in your query (useful for pagination). */
+    skip?: number;
+    /** Tell the query to use specific indexes in the query. Object of indexes to use, `{'_id':1}` */
+    hint?: Hint;
+    /** Specify if the cursor can timeout. */
+    timeout?: boolean;
+    /** Specify if the cursor is tailable. */
+    tailable?: boolean;
+    /** Specify if the cursor is a tailable-await cursor. Requires `tailable` to be true */
+    awaitData?: boolean;
+    /** Set the batchSize for the getMoreCommand when iterating over the query results. */
+    batchSize?: number;
+    /** If true, returns only the index keys in the resulting documents. */
+    returnKey?: boolean;
+    /** The inclusive lower bound for a specific index */
+    min?: Document;
+    /** The exclusive upper bound for a specific index */
+    max?: Document;
+    /** Number of milliseconds to wait before aborting the query. */
+    maxTimeMS?: number;
+    /** The maximum amount of time for the server to wait on new documents to satisfy a tailable cursor query. Requires `tailable` and `awaitData` to be true */
+    maxAwaitTimeMS?: number;
+    /** The server normally times out idle cursors after an inactivity period (10 minutes) to prevent excess memory use. Set this option to prevent that. */
+    noCursorTimeout?: boolean;
+    /** Specify collation (MongoDB 3.4 or higher) settings for update operation (see 3.4 documentation for available fields). */
+    collation?: CollationOptions;
+    /** Allows disk use for blocking sort operations exceeding 100MB memory. (MongoDB 3.2 or higher) */
+    allowDiskUse?: boolean;
+    /** Determines whether to close the cursor after the first batch. Defaults to false. */
+    singleBatch?: boolean;
+    /** For queries against a sharded collection, allows the command (or subsequent getMore commands) to return partial results, rather than an error, if one or more queried shards are unavailable. */
+    allowPartialResults?: boolean;
+    /** Determines whether to return the record identifier for each document. If true, adds a field $recordId to the returned documents. */
+    showRecordId?: boolean;
+    /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+    let?: Document;
+    /**
+     * Option to enable an optimized code path for queries looking for a particular range of `ts` values in the oplog. Requires `tailable` to be true.
+     * @deprecated Starting from MongoDB 4.4 this flag is not needed and will be ignored.
+     */
+    oplogReplay?: boolean;
+    /**
+     * Specifies the verbosity mode for the explain output.
+     * @deprecated This API is deprecated in favor of `collection.find().explain()`.
+     */
+    explain?: ExplainOptions['explain'];
+    /* Excluded from this release type: timeoutMode */
+}
+
+/** @public */
+export declare type Flatten<Type> = Type extends ReadonlyArray<infer Item> ? Item : Type;
+
+/**
+ * @public
+ * Configuration options for making an AWS encryption key
+ */
+export declare interface GCPEncryptionKeyOptions {
+    /**
+     * GCP project ID
+     */
+    projectId: string;
+    /**
+     * Location name (e.g. "global")
+     */
+    location: string;
+    /**
+     * Key ring name
+     */
+    keyRing: string;
+    /**
+     * Key name
+     */
+    keyName: string;
+    /**
+     * Key version
+     */
+    keyVersion?: string | undefined;
+    /**
+     * KMS URL, defaults to `https://www.googleapis.com/auth/cloudkms`
+     */
+    endpoint?: string | undefined;
+}
+
+/** @public */
+export declare type GCPKMSProviderConfiguration = {
+    /**
+     * The service account email to authenticate
+     */
+    email: string;
+    /**
+     * A PKCS#8 encrypted key. This can either be a base64 string or a binary representation
+     */
+    privateKey: string | Buffer;
+    /**
+     * If present, a host with optional port. E.g. "example.com" or "example.com:443".
+     * Defaults to "oauth2.googleapis.com"
+     */
+    endpoint?: string | undefined;
+} | {
+    /**
+     * If present, an access token to authenticate with GCP.
+     */
+    accessToken: string;
+};
+
+/** @public */
+export declare type GenericListener = (...args: any[]) => void;
+
+/**
+ * Constructor for a streaming GridFS interface
+ * @public
+ */
+export declare class GridFSBucket extends TypedEventEmitter<GridFSBucketEvents> {
+    /* Excluded from this release type: s */
+    /**
+     * When the first call to openUploadStream is made, the upload stream will
+     * check to see if it needs to create the proper indexes on the chunks and
+     * files collections. This event is fired either when 1) it determines that
+     * no index creation is necessary, 2) when it successfully creates the
+     * necessary indexes.
+     * @event
+     */
+    static readonly INDEX: "index";
+    constructor(db: Db, options?: GridFSBucketOptions);
+    /**
+     * Returns a writable stream (GridFSBucketWriteStream) for writing
+     * buffers to GridFS. The stream's 'id' property contains the resulting
+     * file's id.
+     *
+     * @param filename - The value of the 'filename' key in the files doc
+     * @param options - Optional settings.
+     */
+    openUploadStream(filename: string, options?: GridFSBucketWriteStreamOptions): GridFSBucketWriteStream;
+    /**
+     * Returns a writable stream (GridFSBucketWriteStream) for writing
+     * buffers to GridFS for a custom file id. The stream's 'id' property contains the resulting
+     * file's id.
+     */
+    openUploadStreamWithId(id: ObjectId, filename: string, options?: GridFSBucketWriteStreamOptions): GridFSBucketWriteStream;
+    /** Returns a readable stream (GridFSBucketReadStream) for streaming file data from GridFS. */
+    openDownloadStream(id: ObjectId, options?: GridFSBucketReadStreamOptions): GridFSBucketReadStream;
+    /**
+     * Deletes a file with the given id
+     *
+     * @param id - The id of the file doc
+     */
+    delete(id: ObjectId, options?: {
+        timeoutMS: number;
+    }): Promise<void>;
+    /** Convenience wrapper around find on the files collection */
+    find(filter?: Filter<GridFSFile>, options?: FindOptions): FindCursor<GridFSFile>;
+    /**
+     * Returns a readable stream (GridFSBucketReadStream) for streaming the
+     * file with the given name from GridFS. If there are multiple files with
+     * the same name, this will stream the most recent file with the given name
+     * (as determined by the `uploadDate` field). You can set the `revision`
+     * option to change this behavior.
+     */
+    openDownloadStreamByName(filename: string, options?: GridFSBucketReadStreamOptionsWithRevision): GridFSBucketReadStream;
+    /**
+     * Renames the file with the given _id to the given string
+     *
+     * @param id - the id of the file to rename
+     * @param filename - new name for the file
+     */
+    rename(id: ObjectId, filename: string, options?: {
+        timeoutMS: number;
+    }): Promise<void>;
+    /** Removes this bucket's files collection, followed by its chunks collection. */
+    drop(options?: {
+        timeoutMS: number;
+    }): Promise<void>;
+}
+
+/** @public */
+export declare type GridFSBucketEvents = {
+    index(): void;
+};
+
+/** @public */
+export declare interface GridFSBucketOptions extends WriteConcernOptions {
+    /** The 'files' and 'chunks' collections will be prefixed with the bucket name followed by a dot. */
+    bucketName?: string;
+    /** Number of bytes stored in each chunk. Defaults to 255KB */
+    chunkSizeBytes?: number;
+    /** Read preference to be passed to read operations */
+    readPreference?: ReadPreference;
+    /**
+     * @experimental
+     * Specifies the lifetime duration of a gridFS stream. If any async operations are in progress
+     * when this timeout expires, the stream will throw a timeout error.
+     */
+    timeoutMS?: number;
+}
+
+/* Excluded from this release type: GridFSBucketPrivate */
+
+/**
+ * A readable stream that enables you to read buffers from GridFS.
+ *
+ * Do not instantiate this class directly. Use `openDownloadStream()` instead.
+ * @public
+ */
+export declare class GridFSBucketReadStream extends Readable {
+    /* Excluded from this release type: s */
+    /**
+     * Fires when the stream loaded the file document corresponding to the provided id.
+     * @event
+     */
+    static readonly FILE: "file";
+    /* Excluded from this release type: __constructor */
+    /* Excluded from this release type: _read */
+    /**
+     * Sets the 0-based offset in bytes to start streaming from. Throws
+     * an error if this stream has entered flowing mode
+     * (e.g. if you've already called `on('data')`)
+     *
+     * @param start - 0-based offset in bytes to start streaming from
+     */
+    start(start?: number): this;
+    /**
+     * Sets the 0-based offset in bytes to start streaming from. Throws
+     * an error if this stream has entered flowing mode
+     * (e.g. if you've already called `on('data')`)
+     *
+     * @param end - Offset in bytes to stop reading at
+     */
+    end(end?: number): this;
+    /**
+     * Marks this stream as aborted (will never push another `data` event)
+     * and kills the underlying cursor. Will emit the 'end' event, and then
+     * the 'close' event once the cursor is successfully killed.
+     */
+    abort(): Promise<void>;
+}
+
+/** @public */
+export declare interface GridFSBucketReadStreamOptions {
+    sort?: Sort;
+    skip?: number;
+    /**
+     * 0-indexed non-negative byte offset from the beginning of the file
+     */
+    start?: number;
+    /**
+     * 0-indexed non-negative byte offset to the end of the file contents
+     * to be returned by the stream. `end` is non-inclusive
+     */
+    end?: number;
+    /**
+     * @experimental
+     * Specifies the time an operation will run until it throws a timeout error
+     */
+    timeoutMS?: number;
+}
+
+/** @public */
+export declare interface GridFSBucketReadStreamOptionsWithRevision extends GridFSBucketReadStreamOptions {
+    /** The revision number relative to the oldest file with the given filename. 0
+     * gets you the oldest file, 1 gets you the 2nd oldest, -1 gets you the
+     * newest. */
+    revision?: number;
+}
+
+/* Excluded from this release type: GridFSBucketReadStreamPrivate */
+
+/**
+ * A writable stream that enables you to write buffers to GridFS.
+ *
+ * Do not instantiate this class directly. Use `openUploadStream()` instead.
+ * @public
+ */
+export declare class GridFSBucketWriteStream extends Writable {
+    bucket: GridFSBucket;
+    /** A Collection instance where the file's chunks are stored */
+    chunks: Collection<GridFSChunk>;
+    /** A Collection instance where the file's GridFSFile document is stored */
+    files: Collection<GridFSFile>;
+    /** The name of the file */
+    filename: string;
+    /** Options controlling the metadata inserted along with the file */
+    options: GridFSBucketWriteStreamOptions;
+    /** Indicates the stream is finished uploading */
+    done: boolean;
+    /** The ObjectId used for the `_id` field on the GridFSFile document */
+    id: ObjectId;
+    /** The number of bytes that each chunk will be limited to */
+    chunkSizeBytes: number;
+    /** Space used to store a chunk currently being inserted */
+    bufToStore: Buffer;
+    /** Accumulates the number of bytes inserted as the stream uploads chunks */
+    length: number;
+    /** Accumulates the number of chunks inserted as the stream uploads file contents */
+    n: number;
+    /** Tracks the current offset into the buffered bytes being uploaded */
+    pos: number;
+    /** Contains a number of properties indicating the current state of the stream */
+    state: {
+        /** If set the stream has ended */
+        streamEnd: boolean;
+        /** Indicates the number of chunks that still need to be inserted to exhaust the current buffered data */
+        outstandingRequests: number;
+        /** If set an error occurred during insertion */
+        errored: boolean;
+        /** If set the stream was intentionally aborted */
+        aborted: boolean;
+    };
+    /** The write concern setting to be used with every insert operation */
+    writeConcern?: WriteConcern;
+    /**
+     * The document containing information about the inserted file.
+     * This property is defined _after_ the finish event has been emitted.
+     * It will remain `null` if an error occurs.
+     *
+     * @example
+     * ```ts
+     * fs.createReadStream('file.txt')
+     *   .pipe(bucket.openUploadStream('file.txt'))
+     *   .on('finish', function () {
+     *     console.log(this.gridFSFile)
+     *   })
+     * ```
+     */
+    gridFSFile: GridFSFile | null;
+    /* Excluded from this release type: timeoutContext */
+    /* Excluded from this release type: __constructor */
+    /* Excluded from this release type: _construct */
+    /* Excluded from this release type: _write */
+    /* Excluded from this release type: _final */
+    /**
+     * Places this write stream into an aborted state (all future writes fail)
+     * and deletes all chunks that have already been written.
+     */
+    abort(): Promise<void>;
+}
+
+/** @public */
+export declare interface GridFSBucketWriteStreamOptions extends WriteConcernOptions {
+    /** Overwrite this bucket's chunkSizeBytes for this file */
+    chunkSizeBytes?: number;
+    /** Custom file id for the GridFS file. */
+    id?: ObjectId;
+    /** Object to store in the file document's `metadata` field */
+    metadata?: Document;
+    /**
+     * String to store in the file document's `contentType` field.
+     * @deprecated Will be removed in the next major version. Add a contentType field to the metadata document instead.
+     */
+    contentType?: string;
+    /**
+     * Array of strings to store in the file document's `aliases` field.
+     * @deprecated Will be removed in the next major version. Add an aliases field to the metadata document instead.
+     */
+    aliases?: string[];
+    /**
+     * @experimental
+     * Specifies the time an operation will run until it throws a timeout error
+     */
+    timeoutMS?: number;
+}
+
+/** @public */
+export declare interface GridFSChunk {
+    _id: ObjectId;
+    files_id: ObjectId;
+    n: number;
+    data: Buffer | Uint8Array;
+}
+
+/** @public */
+export declare interface GridFSFile {
+    _id: ObjectId;
+    length: number;
+    chunkSize: number;
+    filename: string;
+    metadata?: Document;
+    uploadDate: Date;
+    /** @deprecated Will be removed in the next major version. */
+    contentType?: string;
+    /** @deprecated Will be removed in the next major version. */
+    aliases?: string[];
+}
+
+/** @public */
+export declare const GSSAPICanonicalizationValue: Readonly<{
+    readonly on: true;
+    readonly off: false;
+    readonly none: "none";
+    readonly forward: "forward";
+    readonly forwardAndReverse: "forwardAndReverse";
+}>;
+
+/** @public */
+export declare type GSSAPICanonicalizationValue = (typeof GSSAPICanonicalizationValue)[keyof typeof GSSAPICanonicalizationValue];
+
+/* Excluded from this release type: HandshakeDocument */
+
+/** @public */
+export declare interface HedgeOptions {
+    /** Explicitly enable or disable hedged reads. */
+    enabled?: boolean;
+}
+
+/** @public */
+export declare type Hint = string | Document;
+
+/** @public */
+export declare class HostAddress {
+    host: string | undefined;
+    port: number | undefined;
+    socketPath: string | undefined;
+    isIPv6: boolean;
+    constructor(hostString: string);
+    inspect(): string;
+    toString(): string;
+    static fromString(this: void, s: string): HostAddress;
+    static fromHostPort(host: string, port: number): HostAddress;
+    static fromSrvRecord({ name, port }: SrvRecord): HostAddress;
+    toHostPort(): {
+        host: string;
+        port: number;
+    };
+}
+
+/**
+ * The information returned by the server on the IDP server.
+ * @public
+ */
+export declare interface IdPInfo {
+    /**
+     * A URL which describes the Authentication Server. This identifier should
+     * be the iss of provided access tokens, and be viable for RFC8414 metadata
+     * discovery and RFC9207 identification.
+     */
+    issuer: string;
+    /** A unique client ID for this OIDC client. */
+    clientId: string;
+    /** A list of additional scopes to request from IdP. */
+    requestScopes?: string[];
+}
+
+/**
+ * The response from the IdP server with the access token and
+ * optional expiration time and refresh token.
+ * @public
+ */
+export declare interface IdPServerResponse {
+    /** The OIDC access token. */
+    accessToken: string;
+    /** The time when the access token expires. For future use. */
+    expiresInSeconds?: number;
+    /** The refresh token, if applicable, to be used by the callback to request a new token from the issuer. */
+    refreshToken?: string;
+}
+
+/** @public */
+export declare interface IndexDescription extends Pick<CreateIndexesOptions, 'background' | 'unique' | 'partialFilterExpression' | 'sparse' | 'hidden' | 'expireAfterSeconds' | 'storageEngine' | 'version' | 'weights' | 'default_language' | 'language_override' | 'textIndexVersion' | '2dsphereIndexVersion' | 'bits' | 'min' | 'max' | 'bucketSize' | 'wildcardProjection'> {
+    collation?: CollationOptions;
+    name?: string;
+    key: {
+        [key: string]: IndexDirection;
+    } | Map<string, IndexDirection>;
+}
+
+/** @public */
+export declare type IndexDescriptionCompact = Record<string, [name: string, direction: IndexDirection][]>;
+
+/**
+ * @public
+ * The index information returned by the listIndexes command. https://www.mongodb.com/docs/manual/reference/command/listIndexes/#mongodb-dbcommand-dbcmd.listIndexes
+ */
+export declare type IndexDescriptionInfo = Omit<IndexDescription, 'key' | 'version'> & {
+    key: {
+        [key: string]: IndexDirection;
+    };
+    v?: IndexDescription['version'];
+} & Document;
+
+/** @public */
+export declare type IndexDirection = -1 | 1 | '2d' | '2dsphere' | 'text' | 'geoHaystack' | 'hashed' | number;
+
+/** @public */
+export declare interface IndexInformationOptions extends ListIndexesOptions {
+    /**
+     * When `true`, an array of index descriptions is returned.
+     * When `false`, the driver returns an object that with keys corresponding to index names with values
+     * corresponding to the entries of the indexes' key.
+     *
+     * For example, the given the following indexes:
+     * ```
+     * [ { name: 'a_1', key: { a: 1 } }, { name: 'b_1_c_1' , key: { b: 1, c: 1 } }]
+     * ```
+     *
+     * When `full` is `true`, the above array is returned.  When `full` is `false`, the following is returned:
+     * ```
+     * {
+     *   'a_1': [['a', 1]],
+     *   'b_1_c_1': [['b', 1], ['c', 1]],
+     * }
+     * ```
+     */
+    full?: boolean;
+}
+
+/** @public */
+export declare type IndexSpecification = OneOrMore<string | [string, IndexDirection] | {
+    [key: string]: IndexDirection;
+} | Map<string, IndexDirection>>;
+
+/** Given an object shaped type, return the type of the _id field or default to ObjectId @public */
+export declare type InferIdType<TSchema> = TSchema extends {
+    _id: infer IdType;
+} ? Record<any, never> extends IdType ? never : IdType : TSchema extends {
+    _id?: infer IdType;
+} ? unknown extends IdType ? ObjectId : IdType : ObjectId;
+
+/* Excluded from this release type: InitialCursorResponse */
+
+/** @public */
+export declare interface InsertManyResult<TSchema = Document> {
+    /** Indicates whether this write result was acknowledged. If not, then all other members of this result will be undefined */
+    acknowledged: boolean;
+    /** The number of inserted documents for this operations */
+    insertedCount: number;
+    /** Map of the index of the inserted document to the id of the inserted document */
+    insertedIds: {
+        [key: number]: InferIdType<TSchema>;
+    };
+}
+
+/** @public */
+export declare interface InsertOneModel<TSchema extends Document = Document> {
+    /** The document to insert. */
+    document: OptionalId<TSchema>;
+}
+
+/** @public */
+export declare interface InsertOneOptions extends CommandOperationOptions {
+    /** Allow driver to bypass schema validation. */
+    bypassDocumentValidation?: boolean;
+    /** Force server to assign _id values instead of driver. */
+    forceServerObjectId?: boolean;
+}
+
+/** @public */
+export declare interface InsertOneResult<TSchema = Document> {
+    /** Indicates whether this write result was acknowledged. If not, then all other members of this result will be undefined */
+    acknowledged: boolean;
+    /** The identifier that was inserted. If the server generated the identifier, this value will be null as the driver does not have access to that data */
+    insertedId: InferIdType<TSchema>;
+}
+
+export { Int32 }
+
+/** @public */
+export declare type IntegerType = number | Int32 | Long | bigint;
+
+/* Excluded from this release type: InternalAbstractCursorOptions */
+
+/** @public */
+export declare type IsAny<Type, ResultIfAny, ResultIfNotAny> = true extends false & Type ? ResultIfAny : ResultIfNotAny;
+
+/**
+ * Helper types for dot-notation filter attributes
+ */
+/** @public */
+export declare type Join<T extends unknown[], D extends string> = T extends [] ? '' : T extends [string | number] ? `${T[0]}` : T extends [string | number, ...infer R] ? `${T[0]}${D}${Join<R, D>}` : string;
+
+/* Excluded from this release type: JSTypeOf */
+
+/* Excluded from this release type: kBeforeHandshake */
+
+/* Excluded from this release type: kCancellationToken */
+
+/* Excluded from this release type: kCancellationToken_2 */
+
+/* Excluded from this release type: kCancelled */
+
+/* Excluded from this release type: kCancelled_2 */
+
+/* Excluded from this release type: kCheckedOut */
+
+/* Excluded from this release type: kClosed */
+
+/* Excluded from this release type: kConnectionCounter */
+
+/* Excluded from this release type: kConnections */
+
+/* Excluded from this release type: kCursorStream */
+
+/* Excluded from this release type: kDecorateResult */
+
+/* Excluded from this release type: kErrorLabels */
+
+/** @public */
+export declare type KeysOfAType<TSchema, Type> = {
+    [key in keyof TSchema]: NonNullable<TSchema[key]> extends Type ? key : never;
+}[keyof TSchema];
+
+/** @public */
+export declare type KeysOfOtherType<TSchema, Type> = {
+    [key in keyof TSchema]: NonNullable<TSchema[key]> extends Type ? never : key;
+}[keyof TSchema];
+
+/* Excluded from this release type: kGeneration */
+
+/* Excluded from this release type: kInternalClient */
+
+/* Excluded from this release type: kMetrics */
+
+/* Excluded from this release type: kMinPoolSizeTimer */
+
+/**
+ * @public
+ * Configuration options for making a KMIP encryption key
+ */
+export declare interface KMIPEncryptionKeyOptions {
+    /**
+     * keyId is the KMIP Unique Identifier to a 96 byte KMIP Secret Data managed object.
+     *
+     * If keyId is omitted, a random 96 byte KMIP Secret Data managed object will be created.
+     */
+    keyId?: string;
+    /**
+     * Host with optional port.
+     */
+    endpoint?: string;
+    /**
+     * If true, this key should be decrypted by the KMIP server.
+     *
+     * Requires `mongodb-client-encryption>=6.0.1`.
+     */
+    delegated?: boolean;
+}
+
+/** @public */
+export declare interface KMIPKMSProviderConfiguration {
+    /**
+     * The output endpoint string.
+     * The endpoint consists of a hostname and port separated by a colon.
+     * E.g. "example.com:123". A port is always present.
+     */
+    endpoint?: string;
+}
+
+/* Excluded from this release type: kMode */
+
+/* Excluded from this release type: kMonitorId */
+
+/**
+ * @public
+ * Configuration options that are used by specific KMS providers during key generation, encryption, and decryption.
+ *
+ * Named KMS providers _are not supported_ for automatic KMS credential fetching.
+ */
+export declare interface KMSProviders {
+    /**
+     * Configuration options for using 'aws' as your KMS provider
+     */
+    aws?: AWSKMSProviderConfiguration | Record<string, never>;
+    [key: `aws:${string}`]: AWSKMSProviderConfiguration;
+    /**
+     * Configuration options for using 'local' as your KMS provider
+     */
+    local?: LocalKMSProviderConfiguration;
+    [key: `local:${string}`]: LocalKMSProviderConfiguration;
+    /**
+     * Configuration options for using 'kmip' as your KMS provider
+     */
+    kmip?: KMIPKMSProviderConfiguration;
+    [key: `kmip:${string}`]: KMIPKMSProviderConfiguration;
+    /**
+     * Configuration options for using 'azure' as your KMS provider
+     */
+    azure?: AzureKMSProviderConfiguration | Record<string, never>;
+    [key: `azure:${string}`]: AzureKMSProviderConfiguration;
+    /**
+     * Configuration options for using 'gcp' as your KMS provider
+     */
+    gcp?: GCPKMSProviderConfiguration | Record<string, never>;
+    [key: `gcp:${string}`]: GCPKMSProviderConfiguration;
+}
+
+/* Excluded from this release type: kOptions */
+
+/* Excluded from this release type: kPending */
+
+/* Excluded from this release type: kPinnedConnection */
+
+/* Excluded from this release type: kPoolState */
+
+/* Excluded from this release type: kProcessingWaitQueue */
+
+/* Excluded from this release type: kServer */
+
+/* Excluded from this release type: kServer_2 */
+
+/* Excluded from this release type: kServerError */
+
+/* Excluded from this release type: kServerSession */
+
+/* Excluded from this release type: kServiceGenerations */
+
+/* Excluded from this release type: kSession */
+
+/* Excluded from this release type: kSnapshotEnabled */
+
+/* Excluded from this release type: kSnapshotTime */
+
+/* Excluded from this release type: kTxnNumberIncrement */
+
+/* Excluded from this release type: kWaitQueue */
+
+/* Excluded from this release type: kWaitQueue_2 */
+
+/* Excluded from this release type: LegacyTimeoutContext */
+
+/* Excluded from this release type: LegacyTimeoutContextOptions */
+
+/** @public */
+export declare const LEGAL_TCP_SOCKET_OPTIONS: readonly ["autoSelectFamily", "autoSelectFamilyAttemptTimeout", "family", "hints", "localAddress", "localPort", "lookup"];
+
+/** @public */
+export declare const LEGAL_TLS_SOCKET_OPTIONS: readonly ["allowPartialTrustChain", "ALPNProtocols", "ca", "cert", "checkServerIdentity", "ciphers", "crl", "ecdhCurve", "key", "minDHSize", "passphrase", "pfx", "rejectUnauthorized", "secureContext", "secureProtocol", "servername", "session"];
+
+/* Excluded from this release type: List */
+
+/** @public */
+export declare class ListCollectionsCursor<T extends Pick<CollectionInfo, 'name' | 'type'> | CollectionInfo = Pick<CollectionInfo, 'name' | 'type'> | CollectionInfo> extends AbstractCursor<T> {
+    parent: Db;
+    filter: Document;
+    options?: ListCollectionsOptions;
+    constructor(db: Db, filter: Document, options?: ListCollectionsOptions);
+    clone(): ListCollectionsCursor<T>;
+    /* Excluded from this release type: _initialize */
+}
+
+/** @public */
+export declare interface ListCollectionsOptions extends Omit<CommandOperationOptions, 'writeConcern'> {
+    /** Since 4.0: If true, will only return the collection name in the response, and will omit additional info */
+    nameOnly?: boolean;
+    /** Since 4.0: If true and nameOnly is true, allows a user without the required privilege (i.e. listCollections action on the database) to run the command when access control is enforced. */
+    authorizedCollections?: boolean;
+    /** The batchSize for the returned command cursor or if pre 2.8 the systems batch collection */
+    batchSize?: number;
+    /* Excluded from this release type: timeoutMode */
+    /* Excluded from this release type: timeoutContext */
+}
+
+/** @public */
+export declare interface ListDatabasesOptions extends CommandOperationOptions {
+    /** A query predicate that determines which databases are listed */
+    filter?: Document;
+    /** A flag to indicate whether the command should return just the database names, or return both database names and size information */
+    nameOnly?: boolean;
+    /** A flag that determines which databases are returned based on the user privileges when access control is enabled */
+    authorizedDatabases?: boolean;
+}
+
+/** @public */
+export declare interface ListDatabasesResult {
+    databases: ({
+        name: string;
+        sizeOnDisk?: number;
+        empty?: boolean;
+    } & Document)[];
+    totalSize?: number;
+    totalSizeMb?: number;
+    ok: 1 | 0;
+}
+
+/** @public */
+export declare class ListIndexesCursor extends AbstractCursor {
+    parent: Collection;
+    options?: ListIndexesOptions;
+    constructor(collection: Collection, options?: ListIndexesOptions);
+    clone(): ListIndexesCursor;
+    /* Excluded from this release type: _initialize */
+}
+
+/** @public */
+export declare type ListIndexesOptions = AbstractCursorOptions & {
+    /* Excluded from this release type: omitMaxTimeMS */
+};
+
+/** @public */
+export declare class ListSearchIndexesCursor extends AggregationCursor<{
+    name: string;
+}> {
+    /* Excluded from this release type: __constructor */
+}
+
+/** @public */
+export declare type ListSearchIndexesOptions = Omit<AggregateOptions, 'readConcern' | 'writeConcern'>;
+
+/** @public */
+export declare interface LocalKMSProviderConfiguration {
+    /**
+     * The master key used to encrypt/decrypt data keys.
+     * A 96-byte long Buffer or base64 encoded string.
+     */
+    key: Binary | Uint8Array | string;
+}
+
+/* Excluded from this release type: Log */
+
+/* Excluded from this release type: LogComponentSeveritiesClientOptions */
+
+/* Excluded from this release type: LogConvertible */
+
+/* Excluded from this release type: Loggable */
+
+/* Excluded from this release type: LoggableCommandFailedEvent */
+
+/* Excluded from this release type: LoggableCommandSucceededEvent */
+
+/* Excluded from this release type: LoggableEvent */
+
+/* Excluded from this release type: LoggableServerHeartbeatFailedEvent */
+
+/* Excluded from this release type: LoggableServerHeartbeatStartedEvent */
+
+/* Excluded from this release type: LoggableServerHeartbeatSucceededEvent */
+export { Long }
+
+/** @public */
+export declare type MatchKeysAndValues<TSchema> = Readonly<Partial<TSchema>> & Record<string, any>;
+
+export { MaxKey }
+
+/* Excluded from this release type: MessageHeader */
+export { MinKey }
+
+/** @public */
+export declare interface ModifyResult<TSchema = Document> {
+    value: WithId<TSchema> | null;
+    lastErrorObject?: Document;
+    ok: 0 | 1;
+}
+
+/** @public */
+export declare const MONGO_CLIENT_EVENTS: readonly ["connectionPoolCreated", "connectionPoolReady", "connectionPoolCleared", "connectionPoolClosed", "connectionCreated", "connectionReady", "connectionClosed", "connectionCheckOutStarted", "connectionCheckOutFailed", "connectionCheckedOut", "connectionCheckedIn", "commandStarted", "commandSucceeded", "commandFailed", "serverOpening", "serverClosed", "serverDescriptionChanged", "topologyOpening", "topologyClosed", "topologyDescriptionChanged", "error", "timeout", "close", "serverHeartbeatStarted", "serverHeartbeatSucceeded", "serverHeartbeatFailed"];
+
+/**
+ * An error generated when the driver API is used incorrectly
+ *
+ * @privateRemarks
+ * Should **never** be directly instantiated
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoAPIError extends MongoDriverError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, options?: {
+        cause?: Error;
+    });
+    get name(): string;
+}
+
+/**
+ * A error generated when the user attempts to authenticate
+ * via AWS, but fails
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoAWSError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, options?: {
+        cause?: Error;
+    });
+    get name(): string;
+}
+
+/**
+ * A error generated when the user attempts to authenticate
+ * via Azure, but fails.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoAzureError extends MongoOIDCError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/**
+ * An error generated when a batch command is re-executed after one of the commands in the batch
+ * has failed
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoBatchReExecutionError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message?: string);
+    get name(): string;
+}
+
+/**
+ * An error indicating an unsuccessful Bulk Write
+ * @public
+ * @category Error
+ */
+export declare class MongoBulkWriteError extends MongoServerError {
+    result: BulkWriteResult;
+    writeErrors: OneOrMore<WriteError>;
+    err?: WriteConcernError;
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(error: {
+        message: string;
+        code: number;
+        writeErrors?: WriteError[];
+    } | WriteConcernError | AnyError, result: BulkWriteResult);
+    get name(): string;
+    /** Number of documents inserted. */
+    get insertedCount(): number;
+    /** Number of documents matched for update. */
+    get matchedCount(): number;
+    /** Number of documents modified. */
+    get modifiedCount(): number;
+    /** Number of documents deleted. */
+    get deletedCount(): number;
+    /** Number of documents upserted. */
+    get upsertedCount(): number;
+    /** Inserted document generated Id's, hash key is the index of the originating operation */
+    get insertedIds(): {
+        [key: number]: any;
+    };
+    /** Upserted document generated Id's, hash key is the index of the originating operation */
+    get upsertedIds(): {
+        [key: number]: any;
+    };
+}
+
+/**
+ * An error generated when a ChangeStream operation fails to execute.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoChangeStreamError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/**
+ * The **MongoClient** class is a class that allows for making Connections to MongoDB.
+ * @public
+ *
+ * @remarks
+ * The programmatically provided options take precedence over the URI options.
+ *
+ * @example
+ * ```ts
+ * import { MongoClient } from 'mongodb';
+ *
+ * // Enable command monitoring for debugging
+ * const client = new MongoClient('mongodb://localhost:27017', { monitorCommands: true });
+ *
+ * client.on('commandStarted', started => console.log(started));
+ * client.db().collection('pets');
+ * await client.insertOne({ name: 'spot', kind: 'dog' });
+ * ```
+ */
+export declare class MongoClient extends TypedEventEmitter<MongoClientEvents> implements AsyncDisposable_2 {
+    /* Excluded from this release type: s */
+    /* Excluded from this release type: topology */
+    /* Excluded from this release type: mongoLogger */
+    /* Excluded from this release type: connectionLock */
+    /* Excluded from this release type: [kOptions] */
+    constructor(url: string, options?: MongoClientOptions);
+    /**
+     * @beta
+     * @experimental
+     * An alias for {@link MongoClient.close|MongoClient.close()}.
+     */
+    [Symbol.asyncDispose]: () => Promise<void>;
+    /* Excluded from this release type: asyncDispose */
+    /* Excluded from this release type: checkForNonGenuineHosts */
+    /** @see MongoOptions */
+    get options(): Readonly<MongoOptions>;
+    get serverApi(): Readonly<ServerApi | undefined>;
+    /* Excluded from this release type: monitorCommands */
+    /* Excluded from this release type: monitorCommands */
+    /* Excluded from this release type: autoEncrypter */
+    get readConcern(): ReadConcern | undefined;
+    get writeConcern(): WriteConcern | undefined;
+    get readPreference(): ReadPreference;
+    get bsonOptions(): BSONSerializeOptions;
+    get timeoutMS(): number | undefined;
+    /**
+     * Executes a client bulk write operation, available on server 8.0+.
+     * @param models - The client bulk write models.
+     * @param options - The client bulk write options.
+     * @returns A ClientBulkWriteResult for acknowledged writes and ok: 1 for unacknowledged writes.
+     */
+    bulkWrite<SchemaMap extends Record<string, Document> = Record<string, Document>>(models: ReadonlyArray<ClientBulkWriteModel<SchemaMap>>, options?: ClientBulkWriteOptions): Promise<ClientBulkWriteResult>;
+    /**
+     * Connect to MongoDB using a url
+     *
+     * @remarks
+     * Calling `connect` is optional since the first operation you perform will call `connect` if it's needed.
+     * `timeoutMS` will bound the time any operation can take before throwing a timeout error.
+     * However, when the operation being run is automatically connecting your `MongoClient` the `timeoutMS` will not apply to the time taken to connect the MongoClient.
+     * This means the time to setup the `MongoClient` does not count against `timeoutMS`.
+     * If you are using `timeoutMS` we recommend connecting your client explicitly in advance of any operation to avoid this inconsistent execution time.
+     *
+     * @see docs.mongodb.org/manual/reference/connection-string/
+     */
+    connect(): Promise<this>;
+    /* Excluded from this release type: _connect */
+    /**
+     * Cleans up client-side resources used by the MongoCLient and .  This includes:
+     *
+     * - Closes all open, unused connections (see note).
+     * - Ends all in-use sessions with {@link ClientSession#endSession|ClientSession.endSession()}.
+     * - Ends all unused sessions server-side.
+     * - Cleans up any resources being used for auto encryption if auto encryption is enabled.
+     *
+     * @remarks Any in-progress operations are not killed and any connections used by in progress operations
+     * will be cleaned up lazily as operations finish.
+     *
+     * @param force - Force close, emitting no events
+     */
+    close(force?: boolean): Promise<void>;
+    /**
+     * Create a new Db instance sharing the current socket connections.
+     *
+     * @param dbName - The name of the database we want to use. If not provided, use database name from connection string.
+     * @param options - Optional settings for Db construction
+     */
+    db(dbName?: string, options?: DbOptions): Db;
+    /**
+     * Connect to MongoDB using a url
+     *
+     * @remarks
+     * Calling `connect` is optional since the first operation you perform will call `connect` if it's needed.
+     * `timeoutMS` will bound the time any operation can take before throwing a timeout error.
+     * However, when the operation being run is automatically connecting your `MongoClient` the `timeoutMS` will not apply to the time taken to connect the MongoClient.
+     * This means the time to setup the `MongoClient` does not count against `timeoutMS`.
+     * If you are using `timeoutMS` we recommend connecting your client explicitly in advance of any operation to avoid this inconsistent execution time.
+     *
+     * @remarks
+     * The programmatically provided options take precedence over the URI options.
+     *
+     * @see https://www.mongodb.com/docs/manual/reference/connection-string/
+     */
+    static connect(url: string, options?: MongoClientOptions): Promise<MongoClient>;
+    /**
+     * Creates a new ClientSession. When using the returned session in an operation
+     * a corresponding ServerSession will be created.
+     *
+     * @remarks
+     * A ClientSession instance may only be passed to operations being performed on the same
+     * MongoClient it was started from.
+     */
+    startSession(options?: ClientSessionOptions): ClientSession;
+    /**
+     * A convenience method for creating and handling the clean up of a ClientSession.
+     * The session will always be ended when the executor finishes.
+     *
+     * @param executor - An executor function that all operations using the provided session must be invoked in
+     * @param options - optional settings for the session
+     */
+    withSession<T = any>(executor: WithSessionCallback<T>): Promise<T>;
+    withSession<T = any>(options: ClientSessionOptions, executor: WithSessionCallback<T>): Promise<T>;
+    /**
+     * Create a new Change Stream, watching for new changes (insertions, updates,
+     * replacements, deletions, and invalidations) in this cluster. Will ignore all
+     * changes to system collections, as well as the local, admin, and config databases.
+     *
+     * @remarks
+     * watch() accepts two generic arguments for distinct use cases:
+     * - The first is to provide the schema that may be defined for all the data within the current cluster
+     * - The second is to override the shape of the change stream document entirely, if it is not provided the type will default to ChangeStreamDocument of the first argument
+     *
+     * @remarks
+     * When `timeoutMS` is configured for a change stream, it will have different behaviour depending
+     * on whether the change stream is in iterator mode or emitter mode. In both cases, a change
+     * stream will time out if it does not receive a change event within `timeoutMS` of the last change
+     * event.
+     *
+     * Note that if a change stream is consistently timing out when watching a collection, database or
+     * client that is being changed, then this may be due to the server timing out before it can finish
+     * processing the existing oplog. To address this, restart the change stream with a higher
+     * `timeoutMS`.
+     *
+     * If the change stream times out the initial aggregate operation to establish the change stream on
+     * the server, then the client will close the change stream. If the getMore calls to the server
+     * time out, then the change stream will be left open, but will throw a MongoOperationTimeoutError
+     * when in iterator mode and emit an error event that returns a MongoOperationTimeoutError in
+     * emitter mode.
+     *
+     * To determine whether or not the change stream is still open following a timeout, check the
+     * {@link ChangeStream.closed} getter.
+     *
+     * @example
+     * In iterator mode, if a next() call throws a timeout error, it will attempt to resume the change stream.
+     * The next call can just be retried after this succeeds.
+     * ```ts
+     * const changeStream = collection.watch([], { timeoutMS: 100 });
+     * try {
+     *     await changeStream.next();
+     * } catch (e) {
+     *     if (e instanceof MongoOperationTimeoutError && !changeStream.closed) {
+     *       await changeStream.next();
+     *     }
+     *     throw e;
+     * }
+     * ```
+     *
+     * @example
+     * In emitter mode, if the change stream goes `timeoutMS` without emitting a change event, it will
+     * emit an error event that returns a MongoOperationTimeoutError, but will not close the change
+     * stream unless the resume attempt fails. There is no need to re-establish change listeners as
+     * this will automatically continue emitting change events once the resume attempt completes.
+     *
+     * ```ts
+     * const changeStream = collection.watch([], { timeoutMS: 100 });
+     * changeStream.on('change', console.log);
+     * changeStream.on('error', e => {
+     *     if (e instanceof MongoOperationTimeoutError && !changeStream.closed) {
+     *         // do nothing
+     *     } else {
+     *         changeStream.close();
+     *     }
+     * });
+     * ```
+     * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents. This allows for filtering (using $match) and manipulating the change stream documents.
+     * @param options - Optional settings for the command
+     * @typeParam TSchema - Type of the data being detected by the change stream
+     * @typeParam TChange - Type of the whole change stream document emitted
+     */
+    watch<TSchema extends Document = Document, TChange extends Document = ChangeStreamDocument<TSchema>>(pipeline?: Document[], options?: ChangeStreamOptions): ChangeStream<TSchema, TChange>;
+}
+
+/* Excluded from this release type: MongoClientAuthProviders */
+
+/**
+ * An error indicating that an error occurred when processing bulk write results.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoClientBulkWriteCursorError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/**
+ * An error indicating that an error occurred when executing the bulk write.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoClientBulkWriteError extends MongoServerError {
+    /**
+     * Write concern errors that occurred while executing the bulk write. This list may have
+     * multiple items if more than one server command was required to execute the bulk write.
+     */
+    writeConcernErrors: Document[];
+    /**
+     * Errors that occurred during the execution of individual write operations. This map will
+     * contain at most one entry if the bulk write was ordered.
+     */
+    writeErrors: Map<number, ClientBulkWriteError>;
+    /**
+     * The results of any successful operations that were performed before the error was
+     * encountered.
+     */
+    partialResult?: ClientBulkWriteResult;
+    /**
+     * Initialize the client bulk write error.
+     * @param message - The error message.
+     */
+    constructor(message: ErrorDescription);
+    get name(): string;
+}
+
+/**
+ * An error indicating that an error occurred on the client when executing a client bulk write.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoClientBulkWriteExecutionError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/** @public */
+export declare type MongoClientEvents = Pick<TopologyEvents, (typeof MONGO_CLIENT_EVENTS)[number]> & {
+    open(mongoClient: MongoClient): void;
+};
+
+/**
+ * Describes all possible URI query options for the mongo client
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/connection-string
+ */
+export declare interface MongoClientOptions extends BSONSerializeOptions, SupportedNodeConnectionOptions {
+    /** Specifies the name of the replica set, if the mongod is a member of a replica set. */
+    replicaSet?: string;
+    /**
+     * @experimental
+     * Specifies the time an operation will run until it throws a timeout error
+     */
+    timeoutMS?: number;
+    /** Enables or disables TLS/SSL for the connection. */
+    tls?: boolean;
+    /** A boolean to enable or disables TLS/SSL for the connection. (The ssl option is equivalent to the tls option.) */
+    ssl?: boolean;
+    /** Specifies the location of a local .pem file that contains either the client's TLS/SSL certificate and key. */
+    tlsCertificateKeyFile?: string;
+    /** Specifies the password to de-crypt the tlsCertificateKeyFile. */
+    tlsCertificateKeyFilePassword?: string;
+    /** Specifies the location of a local .pem file that contains the root certificate chain from the Certificate Authority. This file is used to validate the certificate presented by the mongod/mongos instance. */
+    tlsCAFile?: string;
+    /** Specifies the location of a local CRL .pem file that contains the client revokation list. */
+    tlsCRLFile?: string;
+    /** Bypasses validation of the certificates presented by the mongod/mongos instance */
+    tlsAllowInvalidCertificates?: boolean;
+    /** Disables hostname validation of the certificate presented by the mongod/mongos instance. */
+    tlsAllowInvalidHostnames?: boolean;
+    /** Disables various certificate validations. */
+    tlsInsecure?: boolean;
+    /** The time in milliseconds to attempt a connection before timing out. */
+    connectTimeoutMS?: number;
+    /** The time in milliseconds to attempt a send or receive on a socket before the attempt times out. */
+    socketTimeoutMS?: number;
+    /** An array or comma-delimited string of compressors to enable network compression for communication between this client and a mongod/mongos instance. */
+    compressors?: CompressorName[] | string;
+    /** An integer that specifies the compression level if using zlib for network compression. */
+    zlibCompressionLevel?: 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | undefined;
+    /** The maximum number of hosts to connect to when using an srv connection string, a setting of `0` means unlimited hosts */
+    srvMaxHosts?: number;
+    /**
+     * Modifies the srv URI to look like:
+     *
+     * `_{srvServiceName}._tcp.{hostname}.{domainname}`
+     *
+     * Querying this DNS URI is expected to respond with SRV records
+     */
+    srvServiceName?: string;
+    /** The maximum number of connections in the connection pool. */
+    maxPoolSize?: number;
+    /** The minimum number of connections in the connection pool. */
+    minPoolSize?: number;
+    /** The maximum number of connections that may be in the process of being established concurrently by the connection pool. */
+    maxConnecting?: number;
+    /** The maximum number of milliseconds that a connection can remain idle in the pool before being removed and closed. */
+    maxIdleTimeMS?: number;
+    /** The maximum time in milliseconds that a thread can wait for a connection to become available. */
+    waitQueueTimeoutMS?: number;
+    /** Specify a read concern for the collection (only MongoDB 3.2 or higher supported) */
+    readConcern?: ReadConcernLike;
+    /** The level of isolation */
+    readConcernLevel?: ReadConcernLevel;
+    /** Specifies the read preferences for this connection */
+    readPreference?: ReadPreferenceMode | ReadPreference;
+    /** Specifies, in seconds, how stale a secondary can be before the client stops using it for read operations. */
+    maxStalenessSeconds?: number;
+    /** Specifies the tags document as a comma-separated list of colon-separated key-value pairs.  */
+    readPreferenceTags?: TagSet[];
+    /** The auth settings for when connection to server. */
+    auth?: Auth;
+    /** Specify the database name associated with the user’s credentials. */
+    authSource?: string;
+    /** Specify the authentication mechanism that MongoDB will use to authenticate the connection. */
+    authMechanism?: AuthMechanism;
+    /** Specify properties for the specified authMechanism as a comma-separated list of colon-separated key-value pairs. */
+    authMechanismProperties?: AuthMechanismProperties;
+    /** The size (in milliseconds) of the latency window for selecting among multiple suitable MongoDB instances. */
+    localThresholdMS?: number;
+    /** Specifies how long (in milliseconds) to block for server selection before throwing an exception.  */
+    serverSelectionTimeoutMS?: number;
+    /** heartbeatFrequencyMS controls when the driver checks the state of the MongoDB deployment. Specify the interval (in milliseconds) between checks, counted from the end of the previous check until the beginning of the next one. */
+    heartbeatFrequencyMS?: number;
+    /** Sets the minimum heartbeat frequency. In the event that the driver has to frequently re-check a server's availability, it will wait at least this long since the previous check to avoid wasted effort. */
+    minHeartbeatFrequencyMS?: number;
+    /** The name of the application that created this MongoClient instance. MongoDB 3.4 and newer will print this value in the server log upon establishing each connection. It is also recorded in the slow query log and profile collections */
+    appName?: string;
+    /** Enables retryable reads. */
+    retryReads?: boolean;
+    /** Enable retryable writes. */
+    retryWrites?: boolean;
+    /** Allow a driver to force a Single topology type with a connection string containing one host */
+    directConnection?: boolean;
+    /** Instruct the driver it is connecting to a load balancer fronting a mongos like service */
+    loadBalanced?: boolean;
+    /**
+     * The write concern w value
+     * @deprecated Please use the `writeConcern` option instead
+     */
+    w?: W;
+    /**
+     * The write concern timeout
+     * @deprecated Please use the `writeConcern` option instead
+     */
+    wtimeoutMS?: number;
+    /**
+     * The journal write concern
+     * @deprecated Please use the `writeConcern` option instead
+     */
+    journal?: boolean;
+    /**
+     * A MongoDB WriteConcern, which describes the level of acknowledgement
+     * requested from MongoDB for write operations.
+     *
+     * @see https://www.mongodb.com/docs/manual/reference/write-concern/
+     */
+    writeConcern?: WriteConcern | WriteConcernSettings;
+    /** TCP Connection no delay */
+    noDelay?: boolean;
+    /** Force server to assign `_id` values instead of driver */
+    forceServerObjectId?: boolean;
+    /** A primary key factory function for generation of custom `_id` keys */
+    pkFactory?: PkFactory;
+    /** Enable command monitoring for this client */
+    monitorCommands?: boolean;
+    /** Server API version */
+    serverApi?: ServerApi | ServerApiVersion;
+    /**
+     * Optionally enable in-use auto encryption
+     *
+     * @remarks
+     *  Automatic encryption is an enterprise only feature that only applies to operations on a collection. Automatic encryption is not supported for operations on a database or view, and operations that are not bypassed will result in error
+     *  (see [libmongocrypt: Auto Encryption Allow-List](https://github.com/mongodb/specifications/blob/master/source/client-side-encryption/client-side-encryption.md#libmongocrypt-auto-encryption-allow-list)). To bypass automatic encryption for all operations, set bypassAutoEncryption=true in AutoEncryptionOpts.
+     *
+     *  Automatic encryption requires the authenticated user to have the [listCollections privilege action](https://www.mongodb.com/docs/manual/reference/command/listCollections/#dbcmd.listCollections).
+     *
+     *  If a MongoClient with a limited connection pool size (i.e a non-zero maxPoolSize) is configured with AutoEncryptionOptions, a separate internal MongoClient is created if any of the following are true:
+     *  - AutoEncryptionOptions.keyVaultClient is not passed.
+     *  - AutoEncryptionOptions.bypassAutomaticEncryption is false.
+     *
+     * If an internal MongoClient is created, it is configured with the same options as the parent MongoClient except minPoolSize is set to 0 and AutoEncryptionOptions is omitted.
+     */
+    autoEncryption?: AutoEncryptionOptions;
+    /** Allows a wrapping driver to amend the client metadata generated by the driver to include information about the wrapping driver */
+    driverInfo?: DriverInfo;
+    /** Configures a Socks5 proxy host used for creating TCP connections. */
+    proxyHost?: string;
+    /** Configures a Socks5 proxy port used for creating TCP connections. */
+    proxyPort?: number;
+    /** Configures a Socks5 proxy username when the proxy in proxyHost requires username/password authentication. */
+    proxyUsername?: string;
+    /** Configures a Socks5 proxy password when the proxy in proxyHost requires username/password authentication. */
+    proxyPassword?: string;
+    /** Instructs the driver monitors to use a specific monitoring mode */
+    serverMonitoringMode?: ServerMonitoringMode;
+    /* Excluded from this release type: srvPoller */
+    /* Excluded from this release type: connectionType */
+    /* Excluded from this release type: mongodbLogPath */
+    /* Excluded from this release type: mongodbLogComponentSeverities */
+    /* Excluded from this release type: mongodbLogMaxDocumentLength */
+    /* Excluded from this release type: __index */
+}
+
+/* Excluded from this release type: MongoClientPrivate */
+
+/**
+ * An error generated when a feature that is not enabled or allowed for the current server
+ * configuration is used
+ *
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoCompatibilityError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/**
+ * A representation of the credentials used by MongoDB
+ * @public
+ */
+export declare class MongoCredentials {
+    /** The username used for authentication */
+    readonly username: string;
+    /** The password used for authentication */
+    readonly password: string;
+    /** The database that the user should authenticate against */
+    readonly source: string;
+    /** The method used to authenticate */
+    readonly mechanism: AuthMechanism;
+    /** Special properties used by some types of auth mechanisms */
+    readonly mechanismProperties: AuthMechanismProperties;
+    constructor(options: MongoCredentialsOptions);
+    /** Determines if two MongoCredentials objects are equivalent */
+    equals(other: MongoCredentials): boolean;
+    /**
+     * If the authentication mechanism is set to "default", resolves the authMechanism
+     * based on the server version and server supported sasl mechanisms.
+     *
+     * @param hello - A hello response from the server
+     */
+    resolveAuthMechanism(hello: Document | null): MongoCredentials;
+    validate(): void;
+    static merge(creds: MongoCredentials | undefined, options: Partial<MongoCredentialsOptions>): MongoCredentials;
+}
+
+/** @public */
+export declare interface MongoCredentialsOptions {
+    username?: string;
+    password: string;
+    source: string;
+    db?: string;
+    mechanism?: AuthMechanism;
+    mechanismProperties: AuthMechanismProperties;
+}
+
+/**
+ * @public
+ * An error indicating that mongodb-client-encryption failed to auto-refresh Azure KMS credentials.
+ */
+export declare class MongoCryptAzureKMSRequestError extends MongoCryptError {
+    /** The body of the http response that failed, if present. */
+    body?: Document;
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, body?: Document);
+    get name(): string;
+}
+
+/**
+ * @public
+ * An error indicating that `ClientEncryption.createEncryptedCollection()` failed to create data keys
+ */
+export declare class MongoCryptCreateDataKeyError extends MongoCryptError {
+    encryptedFields: Document;
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(encryptedFields: Document, { cause }: {
+        cause: Error;
+    });
+    get name(): string;
+}
+
+/**
+ * @public
+ * An error indicating that `ClientEncryption.createEncryptedCollection()` failed to create a collection
+ */
+export declare class MongoCryptCreateEncryptedCollectionError extends MongoCryptError {
+    encryptedFields: Document;
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(encryptedFields: Document, { cause }: {
+        cause: Error;
+    });
+    get name(): string;
+}
+
+/* Excluded from this release type: MongocryptdManager */
+
+/**
+ * @public
+ * An error indicating that something went wrong specifically with MongoDB Client Encryption
+ */
+export declare class MongoCryptError extends MongoError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, options?: {
+        cause?: Error;
+    });
+    get name(): string;
+}
+
+/**
+ * @public
+ *
+ * An error indicating an invalid argument was provided to an encryption API.
+ */
+export declare class MongoCryptInvalidArgumentError extends MongoCryptError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/** @public */
+export declare class MongoCryptKMSRequestNetworkTimeoutError extends MongoCryptError {
+    get name(): string;
+}
+
+/**
+ * An error thrown when an attempt is made to read from a cursor that has been exhausted
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoCursorExhaustedError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message?: string);
+    get name(): string;
+}
+
+/**
+ * An error thrown when the user attempts to add options to a cursor that has already been
+ * initialized
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoCursorInUseError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message?: string);
+    get name(): string;
+}
+
+/**
+ * @public
+ *
+ * A class representing a collection's namespace.  This class enforces (through Typescript) that
+ * the `collection` portion of the namespace is defined and should only be
+ * used in scenarios where this can be guaranteed.
+ */
+export declare class MongoDBCollectionNamespace extends MongoDBNamespace {
+    collection: string;
+    constructor(db: string, collection: string);
+    static fromString(namespace?: string): MongoDBCollectionNamespace;
+}
+
+/* Excluded from this release type: MongoDBLogWritable */
+
+/** @public */
+export declare class MongoDBNamespace {
+    db: string;
+    collection?: string | undefined;
+    /**
+     * Create a namespace object
+     *
+     * @param db - database name
+     * @param collection - collection name
+     */
+    constructor(db: string, collection?: string | undefined);
+    toString(): string;
+    withCollection(collection: string): MongoDBCollectionNamespace;
+    static fromString(namespace?: string): MongoDBNamespace;
+}
+
+/* Excluded from this release type: MongoDBResponse */
+
+/* Excluded from this release type: MongoDBResponseConstructor */
+
+/**
+ * An error generated when the driver fails to decompress
+ * data received from the server.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoDecompressionError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/**
+ * An error generated by the driver
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoDriverError extends MongoError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, options?: {
+        cause?: Error;
+    });
+    get name(): string;
+}
+
+/**
+ * @public
+ * @category Error
+ *
+ * @privateRemarks
+ * mongodb-client-encryption has a dependency on this error, it uses the constructor with a string argument
+ */
+export declare class MongoError extends Error {
+    /* Excluded from this release type: [kErrorLabels] */
+    /**
+     * This is a number in MongoServerError and a string in MongoDriverError
+     * @privateRemarks
+     * Define the type override on the subclasses when we can use the override keyword
+     */
+    code?: number | string;
+    topologyVersion?: TopologyVersion;
+    connectionGeneration?: number;
+    cause?: Error;
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, options?: {
+        cause?: Error;
+    });
+    /* Excluded from this release type: buildErrorMessage */
+    get name(): string;
+    /** Legacy name for server error responses */
+    get errmsg(): string;
+    /**
+     * Checks the error to see if it has an error label
+     *
+     * @param label - The error label to check for
+     * @returns returns true if the error has the provided error label
+     */
+    hasErrorLabel(label: string): boolean;
+    addErrorLabel(label: string): void;
+    get errorLabels(): string[];
+}
+
+/** @public */
+export declare const MongoErrorLabel: Readonly<{
+    readonly RetryableWriteError: "RetryableWriteError";
+    readonly TransientTransactionError: "TransientTransactionError";
+    readonly UnknownTransactionCommitResult: "UnknownTransactionCommitResult";
+    readonly ResumableChangeStreamError: "ResumableChangeStreamError";
+    readonly HandshakeError: "HandshakeError";
+    readonly ResetPool: "ResetPool";
+    readonly PoolRequstedRetry: "PoolRequstedRetry";
+    readonly InterruptInUseConnections: "InterruptInUseConnections";
+    readonly NoWritesPerformed: "NoWritesPerformed";
+}>;
+
+/** @public */
+export declare type MongoErrorLabel = (typeof MongoErrorLabel)[keyof typeof MongoErrorLabel];
+
+/**
+ * An error generated when the user attempts to operate
+ * on a session that has expired or has been closed.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoExpiredSessionError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message?: string);
+    get name(): string;
+}
+
+/**
+ * A error generated when the user attempts to authenticate
+ * via GCP, but fails.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoGCPError extends MongoOIDCError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/**
+ * An error generated when a malformed or invalid chunk is
+ * encountered when reading from a GridFSStream.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoGridFSChunkError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/** An error generated when a GridFSStream operation fails to execute.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoGridFSStreamError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/**
+ * An error generated when the user supplies malformed or unexpected arguments
+ * or when a required argument or field is not provided.
+ *
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoInvalidArgumentError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, options?: {
+        cause?: Error;
+    });
+    get name(): string;
+}
+
+/**
+ * A error generated when the user attempts to authenticate
+ * via Kerberos, but fails to connect to the Kerberos client.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoKerberosError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/* Excluded from this release type: MongoLoggableComponent */
+
+/* Excluded from this release type: MongoLogger */
+
+/* Excluded from this release type: MongoLoggerEnvOptions */
+
+/* Excluded from this release type: MongoLoggerMongoClientOptions */
+
+/* Excluded from this release type: MongoLoggerOptions */
+
+/**
+ * An error generated when the user fails to provide authentication credentials before attempting
+ * to connect to a mongo server instance.
+ *
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoMissingCredentialsError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/**
+ * An error generated when a required module or dependency is not present in the local environment
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoMissingDependencyError extends MongoAPIError {
+    dependencyName: string;
+    /** @remarks This property is assigned in the `Error` constructor. */
+    cause: Error;
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, options: {
+        cause: Error;
+        dependencyName: string;
+    });
+    get name(): string;
+}
+
+/**
+ * An error indicating an issue with the network, including TCP errors and timeouts.
+ * @public
+ * @category Error
+ */
+export declare class MongoNetworkError extends MongoError {
+    /* Excluded from this release type: [kBeforeHandshake] */
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, options?: MongoNetworkErrorOptions);
+    get name(): string;
+}
+
+/** @public */
+export declare interface MongoNetworkErrorOptions {
+    /** Indicates the timeout happened before a connection handshake completed */
+    beforeHandshake?: boolean;
+    cause?: Error;
+}
+
+/**
+ * An error indicating a network timeout occurred
+ * @public
+ * @category Error
+ *
+ * @privateRemarks
+ * mongodb-client-encryption has a dependency on this error with an instanceof check
+ */
+export declare class MongoNetworkTimeoutError extends MongoNetworkError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, options?: MongoNetworkErrorOptions);
+    get name(): string;
+}
+
+/**
+ * An error thrown when the user attempts to operate on a database or collection through a MongoClient
+ * that has not yet successfully called the "connect" method
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoNotConnectedError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/**
+ * A error generated when the user attempts to authenticate
+ * via OIDC callbacks, but fails.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoOIDCError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/**
+ * @public
+ * @category Error
+ *
+ * The `MongoOperationTimeoutError` class represents an error that occurs when an operation could not be completed within the specified `timeoutMS`.
+ * It is generated by the driver in support of the "client side operation timeout" feature so inherits from `MongoDriverError`.
+ * When `timeoutMS` is enabled `MongoServerError`s relating to `MaxTimeExpired` errors will be converted to `MongoOperationTimeoutError`
+ *
+ * @example
+ * ```ts
+ * try {
+ *   await blogs.insertOne(blogPost, { timeoutMS: 60_000 })
+ * } catch (error) {
+ *   if (error instanceof MongoOperationTimeoutError) {
+ *     console.log(`Oh no! writer's block!`, error);
+ *   }
+ * }
+ * ```
+ */
+export declare class MongoOperationTimeoutError extends MongoDriverError {
+    get name(): string;
+}
+
+/**
+ * Parsed Mongo Client Options.
+ *
+ * User supplied options are documented by `MongoClientOptions`.
+ *
+ * **NOTE:** The client's options parsing is subject to change to support new features.
+ * This type is provided to aid with inspection of options after parsing, it should not be relied upon programmatically.
+ *
+ * Options are sourced from:
+ * - connection string
+ * - options object passed to the MongoClient constructor
+ * - file system (ex. tls settings)
+ * - environment variables
+ * - DNS SRV records and TXT records
+ *
+ * Not all options may be present after client construction as some are obtained from asynchronous operations.
+ *
+ * @public
+ */
+export declare interface MongoOptions extends Required<Pick<MongoClientOptions, 'autoEncryption' | 'connectTimeoutMS' | 'directConnection' | 'driverInfo' | 'forceServerObjectId' | 'minHeartbeatFrequencyMS' | 'heartbeatFrequencyMS' | 'localThresholdMS' | 'maxConnecting' | 'maxIdleTimeMS' | 'maxPoolSize' | 'minPoolSize' | 'monitorCommands' | 'noDelay' | 'pkFactory' | 'raw' | 'replicaSet' | 'retryReads' | 'retryWrites' | 'serverSelectionTimeoutMS' | 'socketTimeoutMS' | 'srvMaxHosts' | 'srvServiceName' | 'tlsAllowInvalidCertificates' | 'tlsAllowInvalidHostnames' | 'tlsInsecure' | 'waitQueueTimeoutMS' | 'zlibCompressionLevel'>>, SupportedNodeConnectionOptions {
+    appName?: string;
+    hosts: HostAddress[];
+    srvHost?: string;
+    credentials?: MongoCredentials;
+    readPreference: ReadPreference;
+    readConcern: ReadConcern;
+    loadBalanced: boolean;
+    directConnection: boolean;
+    serverApi: ServerApi;
+    compressors: CompressorName[];
+    writeConcern: WriteConcern;
+    dbName: string;
+    metadata: ClientMetadata;
+    /* Excluded from this release type: extendedMetadata */
+    /* Excluded from this release type: autoEncrypter */
+    /* Excluded from this release type: tokenCache */
+    proxyHost?: string;
+    proxyPort?: number;
+    proxyUsername?: string;
+    proxyPassword?: string;
+    serverMonitoringMode: ServerMonitoringMode;
+    /* Excluded from this release type: connectionType */
+    /* Excluded from this release type: authProviders */
+    /* Excluded from this release type: encrypter */
+    /* Excluded from this release type: userSpecifiedAuthSource */
+    /* Excluded from this release type: userSpecifiedReplicaSet */
+    /**
+     * # NOTE ABOUT TLS Options
+     *
+     * If `tls` is provided as an option, it is equivalent to setting the `ssl` option.
+     *
+     * NodeJS native TLS options are passed through to the socket and retain their original types.
+     *
+     * ### Additional options:
+     *
+     * | nodejs native option  | driver spec equivalent option name            | driver option type |
+     * |:----------------------|:----------------------------------------------|:-------------------|
+     * | `ca`                  | `tlsCAFile`                                   | `string`           |
+     * | `crl`                 | `tlsCRLFile`                                  | `string`           |
+     * | `cert`                | `tlsCertificateKeyFile`                       | `string`           |
+     * | `key`                 | `tlsCertificateKeyFile`                       | `string`           |
+     * | `passphrase`          | `tlsCertificateKeyFilePassword`               | `string`           |
+     * | `rejectUnauthorized`  | `tlsAllowInvalidCertificates`                 | `boolean`          |
+     * | `checkServerIdentity` | `tlsAllowInvalidHostnames`                    | `boolean`          |
+     * | see note below        | `tlsInsecure`                                 | `boolean`          |
+     *
+     * If `tlsInsecure` is set to `true`, then it will set the node native options `checkServerIdentity`
+     * to a no-op and `rejectUnauthorized` to `false`.
+     *
+     * If `tlsInsecure` is set to `false`, then it will set the node native options `checkServerIdentity`
+     * to a no-op and `rejectUnauthorized` to the inverse value of `tlsAllowInvalidCertificates`. If
+     * `tlsAllowInvalidCertificates` is not set, then `rejectUnauthorized` will be set to `true`.
+     *
+     * ### Note on `tlsCAFile`, `tlsCertificateKeyFile` and `tlsCRLFile`
+     *
+     * The files specified by the paths passed in to the `tlsCAFile`, `tlsCertificateKeyFile` and `tlsCRLFile`
+     * fields are read lazily on the first call to `MongoClient.connect`. Once these files have been read and
+     * the `ca`, `cert`, `crl` and `key` fields are populated, they will not be read again on subsequent calls to
+     * `MongoClient.connect`. As a result, until the first call to `MongoClient.connect`, the `ca`,
+     * `cert`, `crl` and `key` fields will be undefined.
+     */
+    tls: boolean;
+    tlsCAFile?: string;
+    tlsCRLFile?: string;
+    tlsCertificateKeyFile?: string;
+    /* Excluded from this release type: __index */
+    /* Excluded from this release type: mongoLoggerOptions */
+    /* Excluded from this release type: mongodbLogPath */
+    timeoutMS?: number;
+}
+
+/**
+ * An error used when attempting to parse a value (like a connection string)
+ * @public
+ * @category Error
+ */
+export declare class MongoParseError extends MongoDriverError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/**
+ * An error generated when the driver encounters unexpected input
+ * or reaches an unexpected/invalid internal state.
+ *
+ * @privateRemarks
+ * Should **never** be directly instantiated.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoRuntimeError extends MongoDriverError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, options?: {
+        cause?: Error;
+    });
+    get name(): string;
+}
+
+/**
+ * An error generated when an attempt is made to operate
+ * on a closed/closing server.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoServerClosedError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message?: string);
+    get name(): string;
+}
+
+/**
+ * An error coming from the mongo server
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoServerError extends MongoError {
+    /** Raw error result document returned by server. */
+    errorResponse: ErrorDescription;
+    codeName?: string;
+    writeConcernError?: Document;
+    errInfo?: Document;
+    ok?: number;
+    [key: string]: any;
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: ErrorDescription);
+    get name(): string;
+}
+
+/**
+ * An error signifying a client-side server selection error
+ * @public
+ * @category Error
+ */
+export declare class MongoServerSelectionError extends MongoSystemError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, reason: TopologyDescription);
+    get name(): string;
+}
+
+/**
+ * An error generated when a primary server is marked stale, never directly thrown
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoStalePrimaryError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(serverDescription: ServerDescription, maxSetVersion: number | null, maxElectionId: ObjectId | null, options?: {
+        cause?: Error;
+    });
+    get name(): string;
+}
+
+/**
+ * An error signifying a general system issue
+ * @public
+ * @category Error
+ */
+export declare class MongoSystemError extends MongoError {
+    /** An optional reason context, such as an error saved during flow of monitoring and selecting servers */
+    reason?: TopologyDescription;
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, reason: TopologyDescription);
+    get name(): string;
+}
+
+/**
+ * An error thrown when the user calls a function or method not supported on a tailable cursor
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoTailableCursorError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message?: string);
+    get name(): string;
+}
+
+/**
+ * An error generated when an attempt is made to operate on a
+ * dropped, or otherwise unavailable, database.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoTopologyClosedError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message?: string);
+    get name(): string;
+}
+
+/**
+ * An error generated when the user makes a mistake in the usage of transactions.
+ * (e.g. attempting to commit a transaction with a readPreference other than primary)
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoTransactionError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/**
+ * An error generated when a **parsable** unexpected response comes from the server.
+ * This is generally an error where the driver in a state expecting a certain behavior to occur in
+ * the next message from MongoDB but it receives something else.
+ * This error **does not** represent an issue with wire message formatting.
+ *
+ * #### Example
+ * When an operation fails, it is the driver's job to retry it. It must perform serverSelection
+ * again to make sure that it attempts the operation against a server in a good state. If server
+ * selection returns a server that does not support retryable operations, this error is used.
+ * This scenario is unlikely as retryable support would also have been determined on the first attempt
+ * but it is possible the state change could report a selectable server that does not support retries.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoUnexpectedServerResponseError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, options?: {
+        cause?: Error;
+    });
+    get name(): string;
+}
+
+/**
+ * An error thrown when the server reports a writeConcernError
+ * @public
+ * @category Error
+ */
+export declare class MongoWriteConcernError extends MongoServerError {
+    /** The result document */
+    result: Document;
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(result: WriteConcernErrorResult);
+    get name(): string;
+}
+
+/* Excluded from this release type: Monitor */
+
+/** @public */
+export declare type MonitorEvents = {
+    serverHeartbeatStarted(event: ServerHeartbeatStartedEvent): void;
+    serverHeartbeatSucceeded(event: ServerHeartbeatSucceededEvent): void;
+    serverHeartbeatFailed(event: ServerHeartbeatFailedEvent): void;
+    resetServer(error?: MongoError): void;
+    resetConnectionPool(): void;
+    close(): void;
+} & EventEmitterWithState;
+
+/* Excluded from this release type: MonitorInterval */
+
+/* Excluded from this release type: MonitorIntervalOptions */
+
+/** @public */
+export declare interface MonitorOptions extends Omit<ConnectionOptions, 'id' | 'generation' | 'hostAddress'> {
+    connectTimeoutMS: number;
+    heartbeatFrequencyMS: number;
+    minHeartbeatFrequencyMS: number;
+    serverMonitoringMode: ServerMonitoringMode;
+}
+
+/* Excluded from this release type: MonitorPrivate */
+
+/**
+ * @public
+ * returns tuple of strings (keys to be joined on '.') that represent every path into a schema
+ * https://www.mongodb.com/docs/manual/tutorial/query-embedded-documents/
+ *
+ * @remarks
+ * Through testing we determined that a depth of 8 is safe for the typescript compiler
+ * and provides reasonable compilation times. This number is otherwise not special and
+ * should be changed if issues are found with this level of checking. Beyond this
+ * depth any helpers that make use of NestedPaths should devolve to not asserting any
+ * type safety on the input.
+ */
+export declare type NestedPaths<Type, Depth extends number[]> = Depth['length'] extends 8 ? [] : Type extends string | number | bigint | boolean | Date | RegExp | Buffer | Uint8Array | ((...args: any[]) => any) | {
+    _bsontype: string;
+} ? [] : Type extends ReadonlyArray<infer ArrayType> ? [] | [number, ...NestedPaths<ArrayType, [...Depth, 1]>] : Type extends Map<string, any> ? [string] : Type extends object ? {
+    [Key in Extract<keyof Type, string>]: Type[Key] extends Type ? [Key] : Type extends Type[Key] ? [Key] : Type[Key] extends ReadonlyArray<infer ArrayType> ? Type extends ArrayType ? [Key] : ArrayType extends Type ? [Key] : [
+    Key,
+    ...NestedPaths<Type[Key], [...Depth, 1]>
+    ] : // child is not structured the same as the parent
+    [
+    Key,
+    ...NestedPaths<Type[Key], [...Depth, 1]>
+    ] | [Key];
+}[Extract<keyof Type, string>] : [];
+
+/**
+ * @public
+ * returns keys (strings) for every path into a schema with a value of type
+ * https://www.mongodb.com/docs/manual/tutorial/query-embedded-documents/
+ */
+export declare type NestedPathsOfType<TSchema, Type> = KeysOfAType<{
+    [Property in Join<NestedPaths<TSchema, []>, '.'>]: PropertyType<TSchema, Property>;
+}, Type>;
+
+/**
+ * @public
+ * A type that extends Document but forbids anything that "looks like" an object id.
+ */
+export declare type NonObjectIdLikeDocument = {
+    [key in keyof ObjectIdLike]?: never;
+} & Document;
+
+/** It avoids using fields with not acceptable types @public */
+export declare type NotAcceptedFields<TSchema, FieldType> = {
+    readonly [key in KeysOfOtherType<TSchema, FieldType>]?: never;
+};
+
+/** @public */
+export declare type NumericType = IntegerType | Decimal128 | Double;
+
+export { ObjectId }
+
+/**
+ * The signature of the human or machine callback functions.
+ * @public
+ */
+export declare type OIDCCallbackFunction = (params: OIDCCallbackParams) => Promise<OIDCResponse>;
+
+/**
+ * The parameters that the driver provides to the user supplied
+ * human or machine callback.
+ *
+ * The version number is used to communicate callback API changes that are not breaking but that
+ * users may want to know about and review their implementation. Users may wish to check the version
+ * number and throw an error if their expected version number and the one provided do not match.
+ * @public
+ */
+export declare interface OIDCCallbackParams {
+    /** Optional username. */
+    username?: string;
+    /** The context in which to timeout the OIDC callback. */
+    timeoutContext: AbortSignal;
+    /** The current OIDC API version. */
+    version: 1;
+    /** The IdP information returned from the server. */
+    idpInfo?: IdPInfo;
+    /** The refresh token, if applicable, to be used by the callback to request a new token from the issuer. */
+    refreshToken?: string;
+}
+
+/**
+ * The response required to be returned from the machine or
+ * human callback workflows' callback.
+ * @public
+ */
+export declare interface OIDCResponse {
+    /** The OIDC access token. */
+    accessToken: string;
+    /** The time when the access token expires. For future use. */
+    expiresInSeconds?: number;
+    /** The refresh token, if applicable, to be used by the callback to request a new token from the issuer. */
+    refreshToken?: string;
+}
+
+/* Excluded from this release type: OnDemandDocument */
+
+/* Excluded from this release type: OnDemandDocumentDeserializeOptions */
+
+/** @public */
+export declare type OneOrMore<T> = T | ReadonlyArray<T>;
+
+/** @public */
+export declare type OnlyFieldsOfType<TSchema, FieldType = any, AssignableType = FieldType> = IsAny<TSchema[keyof TSchema], AssignableType extends FieldType ? Record<string, FieldType> : Record<string, AssignableType>, AcceptedFields<TSchema, FieldType, AssignableType> & NotAcceptedFields<TSchema, FieldType> & Record<string, AssignableType>>;
+
+/* Excluded from this release type: OpCompressedRequest */
+
+/** @public */
+export declare interface OperationOptions extends BSONSerializeOptions {
+    /** Specify ClientSession for this command */
+    session?: ClientSession;
+    willRetryWrite?: boolean;
+    /** The preferred read preference (ReadPreference.primary, ReadPreference.primary_preferred, ReadPreference.secondary, ReadPreference.secondary_preferred, ReadPreference.nearest). */
+    readPreference?: ReadPreferenceLike;
+    /* Excluded from this release type: bypassPinningCheck */
+    omitReadPreference?: boolean;
+    /* Excluded from this release type: omitMaxTimeMS */
+    /**
+     * @experimental
+     * Specifies the time an operation will run until it throws a timeout error
+     */
+    timeoutMS?: number;
+}
+
+/* Excluded from this release type: OperationParent */
+
+/**
+ * Represents a specific point in time on a server. Can be retrieved by using `db.command()`
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/method/db.runCommand/#response
+ */
+export declare type OperationTime = Timestamp;
+
+/* Excluded from this release type: OpMsgOptions */
+
+/* Excluded from this release type: OpMsgRequest */
+
+/* Excluded from this release type: OpMsgResponse */
+
+/* Excluded from this release type: OpQueryOptions */
+
+/* Excluded from this release type: OpQueryRequest */
+
+/* Excluded from this release type: OpReply */
+
+/**
+ * Add an optional _id field to an object shaped type
+ * @public
+ */
+export declare type OptionalId<TSchema> = EnhancedOmit<TSchema, '_id'> & {
+    _id?: InferIdType<TSchema>;
+};
+
+/**
+ * Adds an optional _id field to an object shaped type, unless the _id field is required on that type.
+ * In the case _id is required, this method continues to require_id.
+ *
+ * @public
+ *
+ * @privateRemarks
+ * `ObjectId extends TSchema['_id']` is a confusing ordering at first glance. Rather than ask
+ * `TSchema['_id'] extends ObjectId` which translated to "Is the _id property ObjectId?"
+ * we instead ask "Does ObjectId look like (have the same shape) as the _id?"
+ */
+export declare type OptionalUnlessRequiredId<TSchema> = TSchema extends {
+    _id: any;
+} ? TSchema : OptionalId<TSchema>;
+
+/** @public */
+export declare class OrderedBulkOperation extends BulkOperationBase {
+    /* Excluded from this release type: __constructor */
+    addToOperationsList(batchType: BatchType, document: Document | UpdateStatement | DeleteStatement): this;
+}
+
+/** @public */
+export declare interface PkFactory {
+    createPk(): any;
+}
+
+/* Excluded from this release type: PoolState */
+
+/** @public */
+export declare const ProfilingLevel: Readonly<{
+    readonly off: "off";
+    readonly slowOnly: "slow_only";
+    readonly all: "all";
+}>;
+
+/** @public */
+export declare type ProfilingLevel = (typeof ProfilingLevel)[keyof typeof ProfilingLevel];
+
+/** @public */
+export declare type ProfilingLevelOptions = CommandOperationOptions;
+
+/** @public */
+export declare type PropertyType<Type, Property extends string> = string extends Property ? unknown : Property extends keyof Type ? Type[Property] : Property extends `${number}` ? Type extends ReadonlyArray<infer ArrayType> ? ArrayType : unknown : Property extends `${infer Key}.${infer Rest}` ? Key extends `${number}` ? Type extends ReadonlyArray<infer ArrayType> ? PropertyType<ArrayType, Rest> : unknown : Key extends keyof Type ? Type[Key] extends Map<string, infer MapType> ? MapType : PropertyType<Type[Key], Rest> : unknown : unknown;
+
+/** @public */
+export declare interface ProxyOptions {
+    proxyHost?: string;
+    proxyPort?: number;
+    proxyUsername?: string;
+    proxyPassword?: string;
+}
+
+/** @public */
+export declare type PullAllOperator<TSchema> = ({
+    readonly [key in KeysOfAType<TSchema, ReadonlyArray<any>>]?: TSchema[key];
+} & NotAcceptedFields<TSchema, ReadonlyArray<any>>) & {
+    readonly [key: string]: ReadonlyArray<any>;
+};
+
+/** @public */
+export declare type PullOperator<TSchema> = ({
+    readonly [key in KeysOfAType<TSchema, ReadonlyArray<any>>]?: Partial<Flatten<TSchema[key]>> | FilterOperations<Flatten<TSchema[key]>>;
+} & NotAcceptedFields<TSchema, ReadonlyArray<any>>) & {
+    readonly [key: string]: FilterOperators<any> | any;
+};
+
+/** @public */
+export declare type PushOperator<TSchema> = ({
+    readonly [key in KeysOfAType<TSchema, ReadonlyArray<any>>]?: Flatten<TSchema[key]> | ArrayOperator<Array<Flatten<TSchema[key]>>>;
+} & NotAcceptedFields<TSchema, ReadonlyArray<any>>) & {
+    readonly [key: string]: ArrayOperator<any> | any;
+};
+
+/**
+ * @public
+ * RangeOptions specifies index options for a Queryable Encryption field supporting "range" queries.
+ * min, max, sparsity, trimFactor and range must match the values set in the encryptedFields of the destination collection.
+ * For double and decimal128, min/max/precision must all be set, or all be unset.
+ */
+export declare interface RangeOptions {
+    /** min is the minimum value for the encrypted index. Required if precision is set. */
+    min?: any;
+    /** max is the minimum value for the encrypted index. Required if precision is set. */
+    max?: any;
+    /** sparsity may be used to tune performance. must be non-negative. When omitted, a default value is used. */
+    sparsity?: Long | bigint;
+    /** trimFactor may be used to tune performance. must be non-negative. When omitted, a default value is used. */
+    trimFactor?: Int32 | number;
+    precision?: number;
+}
+
+/**
+ * The MongoDB ReadConcern, which allows for control of the consistency and isolation properties
+ * of the data read from replica sets and replica set shards.
+ * @public
+ *
+ * @see https://www.mongodb.com/docs/manual/reference/read-concern/index.html
+ */
+export declare class ReadConcern {
+    level: ReadConcernLevel | string;
+    /** Constructs a ReadConcern from the read concern level.*/
+    constructor(level: ReadConcernLevel);
+    /**
+     * Construct a ReadConcern given an options object.
+     *
+     * @param options - The options object from which to extract the write concern.
+     */
+    static fromOptions(options?: {
+        readConcern?: ReadConcernLike;
+        level?: ReadConcernLevel;
+    }): ReadConcern | undefined;
+    static get MAJORITY(): 'majority';
+    static get AVAILABLE(): 'available';
+    static get LINEARIZABLE(): 'linearizable';
+    static get SNAPSHOT(): 'snapshot';
+    toJSON(): Document;
+}
+
+/** @public */
+export declare const ReadConcernLevel: Readonly<{
+    readonly local: "local";
+    readonly majority: "majority";
+    readonly linearizable: "linearizable";
+    readonly available: "available";
+    readonly snapshot: "snapshot";
+}>;
+
+/** @public */
+export declare type ReadConcernLevel = (typeof ReadConcernLevel)[keyof typeof ReadConcernLevel];
+
+/** @public */
+export declare type ReadConcernLike = ReadConcern | {
+    level: ReadConcernLevel;
+} | ReadConcernLevel;
+
+/**
+ * The **ReadPreference** class is a class that represents a MongoDB ReadPreference and is
+ * used to construct connections.
+ * @public
+ *
+ * @see https://www.mongodb.com/docs/manual/core/read-preference/
+ */
+export declare class ReadPreference {
+    mode: ReadPreferenceMode;
+    tags?: TagSet[];
+    hedge?: HedgeOptions;
+    maxStalenessSeconds?: number;
+    minWireVersion?: number;
+    static PRIMARY: "primary";
+    static PRIMARY_PREFERRED: "primaryPreferred";
+    static SECONDARY: "secondary";
+    static SECONDARY_PREFERRED: "secondaryPreferred";
+    static NEAREST: "nearest";
+    static primary: ReadPreference;
+    static primaryPreferred: ReadPreference;
+    static secondary: ReadPreference;
+    static secondaryPreferred: ReadPreference;
+    static nearest: ReadPreference;
+    /**
+     * @param mode - A string describing the read preference mode (primary|primaryPreferred|secondary|secondaryPreferred|nearest)
+     * @param tags - A tag set used to target reads to members with the specified tag(s). tagSet is not available if using read preference mode primary.
+     * @param options - Additional read preference options
+     */
+    constructor(mode: ReadPreferenceMode, tags?: TagSet[], options?: ReadPreferenceOptions);
+    get preference(): ReadPreferenceMode;
+    static fromString(mode: string): ReadPreference;
+    /**
+     * Construct a ReadPreference given an options object.
+     *
+     * @param options - The options object from which to extract the read preference.
+     */
+    static fromOptions(options?: ReadPreferenceFromOptions): ReadPreference | undefined;
+    /**
+     * Replaces options.readPreference with a ReadPreference instance
+     */
+    static translate(options: ReadPreferenceLikeOptions): ReadPreferenceLikeOptions;
+    /**
+     * Validate if a mode is legal
+     *
+     * @param mode - The string representing the read preference mode.
+     */
+    static isValid(mode: string): boolean;
+    /**
+     * Validate if a mode is legal
+     *
+     * @param mode - The string representing the read preference mode.
+     */
+    isValid(mode?: string): boolean;
+    /**
+     * Indicates that this readPreference needs the "SecondaryOk" bit when sent over the wire
+     * @see https://www.mongodb.com/docs/manual/reference/mongodb-wire-protocol/#op-query
+     */
+    secondaryOk(): boolean;
+    /**
+     * Check if the two ReadPreferences are equivalent
+     *
+     * @param readPreference - The read preference with which to check equality
+     */
+    equals(readPreference: ReadPreference): boolean;
+    /** Return JSON representation */
+    toJSON(): Document;
+}
+
+/** @public */
+export declare interface ReadPreferenceFromOptions extends ReadPreferenceLikeOptions {
+    session?: ClientSession;
+    readPreferenceTags?: TagSet[];
+    hedge?: HedgeOptions;
+}
+
+/** @public */
+export declare type ReadPreferenceLike = ReadPreference | ReadPreferenceMode;
+
+/** @public */
+export declare interface ReadPreferenceLikeOptions extends ReadPreferenceOptions {
+    readPreference?: ReadPreferenceLike | {
+        mode?: ReadPreferenceMode;
+        preference?: ReadPreferenceMode;
+        tags?: TagSet[];
+        maxStalenessSeconds?: number;
+    };
+}
+
+/** @public */
+export declare const ReadPreferenceMode: Readonly<{
+    readonly primary: "primary";
+    readonly primaryPreferred: "primaryPreferred";
+    readonly secondary: "secondary";
+    readonly secondaryPreferred: "secondaryPreferred";
+    readonly nearest: "nearest";
+}>;
+
+/** @public */
+export declare type ReadPreferenceMode = (typeof ReadPreferenceMode)[keyof typeof ReadPreferenceMode];
+
+/** @public */
+export declare interface ReadPreferenceOptions {
+    /** Max secondary read staleness in seconds, Minimum value is 90 seconds.*/
+    maxStalenessSeconds?: number;
+    /** Server mode in which the same query is dispatched in parallel to multiple replica set members. */
+    hedge?: HedgeOptions;
+}
+
+/** @public */
+export declare type RegExpOrString<T> = T extends string ? BSONRegExp | RegExp | T : T;
+
+/** @public */
+export declare type RemoveUserOptions = CommandOperationOptions;
+
+/** @public */
+export declare interface RenameOptions extends CommandOperationOptions {
+    /** Drop the target name collection if it previously exists. */
+    dropTarget?: boolean;
+    /** Unclear */
+    new_collection?: boolean;
+}
+
+/** @public */
+export declare interface ReplaceOneModel<TSchema extends Document = Document> {
+    /** The filter to limit the replaced document. */
+    filter: Filter<TSchema>;
+    /** The document with which to replace the matched document. */
+    replacement: WithoutId<TSchema>;
+    /** Specifies a collation. */
+    collation?: CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: Hint;
+    /** When true, creates a new document if no document matches the query. */
+    upsert?: boolean;
+}
+
+/** @public */
+export declare interface ReplaceOptions extends CommandOperationOptions {
+    /** If true, allows the write to opt-out of document level validation */
+    bypassDocumentValidation?: boolean;
+    /** Specifies a collation */
+    collation?: CollationOptions;
+    /** Specify that the update query should only consider plans using the hinted index */
+    hint?: string | Document;
+    /** When true, creates a new document if no document matches the query */
+    upsert?: boolean;
+    /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+    let?: Document;
+}
+
+/**
+ * @public
+ * @deprecated Please use the ChangeStreamCursorOptions type instead.
+ */
+export declare interface ResumeOptions {
+    startAtOperationTime?: Timestamp;
+    batchSize?: number;
+    maxAwaitTimeMS?: number;
+    collation?: CollationOptions;
+    readPreference?: ReadPreference;
+    resumeAfter?: ResumeToken;
+    startAfter?: ResumeToken;
+    fullDocument?: string;
+}
+
+/**
+ * Represents the logical starting point for a new ChangeStream or resuming a ChangeStream on the server.
+ * @see https://www.mongodb.com/docs/manual/changeStreams/#std-label-change-stream-resume
+ * @public
+ */
+export declare type ResumeToken = unknown;
+
+/** @public */
+export declare const ReturnDocument: Readonly<{
+    readonly BEFORE: "before";
+    readonly AFTER: "after";
+}>;
+
+/** @public */
+export declare type ReturnDocument = (typeof ReturnDocument)[keyof typeof ReturnDocument];
+
+/** @public */
+export declare interface RootFilterOperators<TSchema> extends Document {
+    $and?: Filter<TSchema>[];
+    $nor?: Filter<TSchema>[];
+    $or?: Filter<TSchema>[];
+    $text?: {
+        $search: string;
+        $language?: string;
+        $caseSensitive?: boolean;
+        $diacriticSensitive?: boolean;
+    };
+    $where?: string | ((this: TSchema) => boolean);
+    $comment?: string | Document;
+}
+
+/* Excluded from this release type: RTTPinger */
+
+/* Excluded from this release type: RTTPingerOptions */
+
+/* Excluded from this release type: RTTSampler */
+
+/** @public */
+export declare class RunCommandCursor extends AbstractCursor {
+    readonly command: Readonly<Record<string, any>>;
+    readonly getMoreOptions: {
+        comment?: any;
+        maxAwaitTimeMS?: number;
+        batchSize?: number;
+    };
+    /**
+     * Controls the `getMore.comment` field
+     * @param comment - any BSON value
+     */
+    setComment(comment: any): this;
+    /**
+     * Controls the `getMore.maxTimeMS` field. Only valid when cursor is tailable await
+     * @param maxTimeMS - the number of milliseconds to wait for new data
+     */
+    setMaxTimeMS(maxTimeMS: number): this;
+    /**
+     * Controls the `getMore.batchSize` field
+     * @param batchSize - the number documents to return in the `nextBatch`
+     */
+    setBatchSize(batchSize: number): this;
+    /** Unsupported for RunCommandCursor */
+    clone(): never;
+    /** Unsupported for RunCommandCursor: readConcern must be configured directly on command document */
+    withReadConcern(_: ReadConcernLike): never;
+    /** Unsupported for RunCommandCursor: various cursor flags must be configured directly on command document */
+    addCursorFlag(_: string, __: boolean): never;
+    /**
+     * Unsupported for RunCommandCursor: maxTimeMS must be configured directly on command document
+     */
+    maxTimeMS(_: number): never;
+    /** Unsupported for RunCommandCursor: batchSize must be configured directly on command document */
+    batchSize(_: number): never;
+    /* Excluded from this release type: db */
+    /* Excluded from this release type: __constructor */
+    /* Excluded from this release type: _initialize */
+    /* Excluded from this release type: getMore */
+}
+
+/** @public */
+export declare type RunCommandOptions = {
+    /** Specify ClientSession for this command */
+    session?: ClientSession;
+    /** The read preference */
+    readPreference?: ReadPreferenceLike;
+    /**
+     * @experimental
+     * Specifies the time an operation will run until it throws a timeout error
+     */
+    timeoutMS?: number;
+    /* Excluded from this release type: omitMaxTimeMS */
+} & BSONSerializeOptions;
+
+/** @public */
+export declare type RunCursorCommandOptions = {
+    readPreference?: ReadPreferenceLike;
+    session?: ClientSession;
+    /**
+     * @experimental
+     * Specifies the time an operation will run until it throws a timeout error. Note that if
+     * `maxTimeMS` is provided in the command in addition to setting `timeoutMS` in the options, then
+     * the original value of `maxTimeMS` will be overwritten.
+     */
+    timeoutMS?: number;
+    /**
+     * @public
+     * @experimental
+     * Specifies how `timeoutMS` is applied to the cursor. Can be either `'cursorLifeTime'` or `'iteration'`
+     * When set to `'iteration'`, the deadline specified by `timeoutMS` applies to each call of
+     * `cursor.next()`.
+     * When set to `'cursorLifetime'`, the deadline applies to the life of the entire cursor.
+     *
+     * Depending on the type of cursor being used, this option has different default values.
+     * For non-tailable cursors, this value defaults to `'cursorLifetime'`
+     * For tailable cursors, this value defaults to `'iteration'` since tailable cursors, by
+     * definition can have an arbitrarily long lifetime.
+     *
+     * @example
+     * ```ts
+     * const cursor = collection.find({}, {timeoutMS: 100, timeoutMode: 'iteration'});
+     * for await (const doc of cursor) {
+     *  // process doc
+     *  // This will throw a timeout error if any of the iterator's `next()` calls takes more than 100ms, but
+     *  // will continue to iterate successfully otherwise, regardless of the number of batches.
+     * }
+     * ```
+     *
+     * @example
+     * ```ts
+     * const cursor = collection.find({}, { timeoutMS: 1000, timeoutMode: 'cursorLifetime' });
+     * const docs = await cursor.toArray(); // This entire line will throw a timeout error if all batches are not fetched and returned within 1000ms.
+     * ```
+     */
+    timeoutMode?: CursorTimeoutMode;
+    tailable?: boolean;
+    awaitData?: boolean;
+} & BSONSerializeOptions;
+
+/** @public */
+export declare type SchemaMember<T, V> = {
+    [P in keyof T]?: V;
+} | {
+    [key: string]: V;
+};
+
+/**
+ * @public
+ */
+export declare interface SearchIndexDescription extends Document {
+    /** The name of the index. */
+    name?: string;
+    /** The index definition. */
+    definition: Document;
+    /** The type of the index.  Currently `search` or `vectorSearch` are supported. */
+    type?: string;
+}
+
+/** @public */
+export declare interface SelectServerOptions {
+    readPreference?: ReadPreferenceLike;
+    /** How long to block for server selection before throwing an error */
+    serverSelectionTimeoutMS?: number;
+    session?: ClientSession;
+    operationName: string;
+    previousServer?: ServerDescription;
+    /* Excluded from this release type: timeoutContext */
+}
+
+export { serialize }
+
+/* Excluded from this release type: Server */
+
+/* Excluded from this release type: SERVER_CLOSED */
+
+/* Excluded from this release type: SERVER_DESCRIPTION_CHANGED */
+
+/* Excluded from this release type: SERVER_HEARTBEAT_FAILED */
+
+/* Excluded from this release type: SERVER_HEARTBEAT_STARTED */
+
+/* Excluded from this release type: SERVER_HEARTBEAT_SUCCEEDED */
+
+/* Excluded from this release type: SERVER_OPENING */
+
+/* Excluded from this release type: SERVER_SELECTION_FAILED */
+
+/* Excluded from this release type: SERVER_SELECTION_STARTED */
+
+/* Excluded from this release type: SERVER_SELECTION_SUCCEEDED */
+
+/** @public */
+export declare interface ServerApi {
+    version: ServerApiVersion;
+    strict?: boolean;
+    deprecationErrors?: boolean;
+}
+
+/** @public */
+export declare const ServerApiVersion: Readonly<{
+    readonly v1: "1";
+}>;
+
+/** @public */
+export declare type ServerApiVersion = (typeof ServerApiVersion)[keyof typeof ServerApiVersion];
+
+/** @public */
+export declare class ServerCapabilities {
+    maxWireVersion: number;
+    minWireVersion: number;
+    constructor(hello: Document);
+    get hasAggregationCursor(): boolean;
+    get hasWriteCommands(): boolean;
+    get hasTextSearch(): boolean;
+    get hasAuthCommands(): boolean;
+    get hasListCollectionsCommand(): boolean;
+    get hasListIndexesCommand(): boolean;
+    get supportsSnapshotReads(): boolean;
+    get commandsTakeWriteConcern(): boolean;
+    get commandsTakeCollation(): boolean;
+}
+
+/**
+ * Emitted when server is closed.
+ * @public
+ * @category Event
+ */
+export declare class ServerClosedEvent {
+    /** A unique identifier for the topology */
+    topologyId: number;
+    /** The address (host/port pair) of the server */
+    address: string;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/* Excluded from this release type: ServerCommandOptions */
+
+/**
+ * The client's view of a single server, based on the most recent hello outcome.
+ *
+ * Internal type, not meant to be directly instantiated
+ * @public
+ */
+export declare class ServerDescription {
+    address: string;
+    type: ServerType;
+    hosts: string[];
+    passives: string[];
+    arbiters: string[];
+    tags: TagSet;
+    error: MongoError | null;
+    topologyVersion: TopologyVersion | null;
+    minWireVersion: number;
+    maxWireVersion: number;
+    roundTripTime: number;
+    /** The minimum measurement of the last 10 measurements of roundTripTime that have been collected */
+    minRoundTripTime: number;
+    lastUpdateTime: number;
+    lastWriteDate: number;
+    me: string | null;
+    primary: string | null;
+    setName: string | null;
+    setVersion: number | null;
+    electionId: ObjectId | null;
+    logicalSessionTimeoutMinutes: number | null;
+    /** The max message size in bytes for the server. */
+    maxMessageSizeBytes: number | null;
+    /** The max number of writes in a bulk write command. */
+    maxWriteBatchSize: number | null;
+    /** The max bson object size. */
+    maxBsonObjectSize: number | null;
+    /** Indicates server is a mongocryptd instance. */
+    iscryptd: boolean;
+    $clusterTime?: ClusterTime;
+    /* Excluded from this release type: __constructor */
+    get hostAddress(): HostAddress;
+    get allHosts(): string[];
+    /** Is this server available for reads*/
+    get isReadable(): boolean;
+    /** Is this server data bearing */
+    get isDataBearing(): boolean;
+    /** Is this server available for writes */
+    get isWritable(): boolean;
+    get host(): string;
+    get port(): number;
+    /**
+     * Determines if another `ServerDescription` is equal to this one per the rules defined in the SDAM specification.
+     * @see https://github.com/mongodb/specifications/blob/master/source/server-discovery-and-monitoring/server-discovery-and-monitoring.md
+     */
+    equals(other?: ServerDescription | null): boolean;
+}
+
+/**
+ * Emitted when server description changes, but does NOT include changes to the RTT.
+ * @public
+ * @category Event
+ */
+export declare class ServerDescriptionChangedEvent {
+    /** A unique identifier for the topology */
+    topologyId: number;
+    /** The address (host/port pair) of the server */
+    address: string;
+    /** The previous server description */
+    previousDescription: ServerDescription;
+    /** The new server description */
+    newDescription: ServerDescription;
+    name: "serverDescriptionChanged";
+    /* Excluded from this release type: __constructor */
+}
+
+/* Excluded from this release type: ServerDescriptionOptions */
+
+/** @public */
+export declare type ServerEvents = {
+    serverHeartbeatStarted(event: ServerHeartbeatStartedEvent): void;
+    serverHeartbeatSucceeded(event: ServerHeartbeatSucceededEvent): void;
+    serverHeartbeatFailed(event: ServerHeartbeatFailedEvent): void;
+    /* Excluded from this release type: connect */
+    descriptionReceived(description: ServerDescription): void;
+    closed(): void;
+    ended(): void;
+} & ConnectionPoolEvents & EventEmitterWithState;
+
+/**
+ * Emitted when the server monitor’s hello fails, either with an “ok: 0” or a socket exception.
+ * @public
+ * @category Event
+ */
+export declare class ServerHeartbeatFailedEvent {
+    /** The connection id for the command */
+    connectionId: string;
+    /** The execution time of the event in ms */
+    duration: number;
+    /** The command failure */
+    failure: Error;
+    /** Is true when using the streaming protocol */
+    awaited: boolean;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/**
+ * Emitted when the server monitor’s hello command is started - immediately before
+ * the hello command is serialized into raw BSON and written to the socket.
+ *
+ * @public
+ * @category Event
+ */
+export declare class ServerHeartbeatStartedEvent {
+    /** The connection id for the command */
+    connectionId: string;
+    /** Is true when using the streaming protocol */
+    awaited: boolean;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/**
+ * Emitted when the server monitor’s hello succeeds.
+ * @public
+ * @category Event
+ */
+export declare class ServerHeartbeatSucceededEvent {
+    /** The connection id for the command */
+    connectionId: string;
+    /** The execution time of the event in ms */
+    duration: number;
+    /** The command reply */
+    reply: Document;
+    /** Is true when using the streaming protocol */
+    awaited: boolean;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/** @public */
+export declare const ServerMonitoringMode: Readonly<{
+    readonly auto: "auto";
+    readonly poll: "poll";
+    readonly stream: "stream";
+}>;
+
+/** @public */
+export declare type ServerMonitoringMode = (typeof ServerMonitoringMode)[keyof typeof ServerMonitoringMode];
+
+/**
+ * Emitted when server is initialized.
+ * @public
+ * @category Event
+ */
+export declare class ServerOpeningEvent {
+    /** A unique identifier for the topology */
+    topologyId: number;
+    /** The address (host/port pair) of the server */
+    address: string;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/* Excluded from this release type: ServerOptions */
+
+/* Excluded from this release type: ServerPrivate */
+
+/* Excluded from this release type: ServerSelectionCallback */
+
+/* Excluded from this release type: ServerSelectionEvent */
+
+/* Excluded from this release type: ServerSelectionFailedEvent */
+
+/* Excluded from this release type: ServerSelectionRequest */
+
+/* Excluded from this release type: ServerSelectionStartedEvent */
+
+/* Excluded from this release type: ServerSelectionSucceededEvent */
+
+/* Excluded from this release type: ServerSelector */
+
+/**
+ * Reflects the existence of a session on the server. Can be reused by the session pool.
+ * WARNING: not meant to be instantiated directly. For internal use only.
+ * @public
+ */
+export declare class ServerSession {
+    id: ServerSessionId;
+    lastUse: number;
+    txnNumber: number;
+    isDirty: boolean;
+    /* Excluded from this release type: __constructor */
+    /**
+     * Determines if the server session has timed out.
+     *
+     * @param sessionTimeoutMinutes - The server's "logicalSessionTimeoutMinutes"
+     */
+    hasTimedOut(sessionTimeoutMinutes: number): boolean;
+}
+
+/** @public */
+export declare type ServerSessionId = {
+    id: Binary;
+};
+
+/* Excluded from this release type: ServerSessionPool */
+
+/**
+ * An enumeration of server types we know about
+ * @public
+ */
+export declare const ServerType: Readonly<{
+    readonly Standalone: "Standalone";
+    readonly Mongos: "Mongos";
+    readonly PossiblePrimary: "PossiblePrimary";
+    readonly RSPrimary: "RSPrimary";
+    readonly RSSecondary: "RSSecondary";
+    readonly RSArbiter: "RSArbiter";
+    readonly RSOther: "RSOther";
+    readonly RSGhost: "RSGhost";
+    readonly Unknown: "Unknown";
+    readonly LoadBalancer: "LoadBalancer";
+}>;
+
+/** @public */
+export declare type ServerType = (typeof ServerType)[keyof typeof ServerType];
+
+/** @public */
+export declare type SetFields<TSchema> = ({
+    readonly [key in KeysOfAType<TSchema, ReadonlyArray<any> | undefined>]?: OptionalId<Flatten<TSchema[key]>> | AddToSetOperators<Array<OptionalId<Flatten<TSchema[key]>>>>;
+} & IsAny<TSchema[keyof TSchema], object, NotAcceptedFields<TSchema, ReadonlyArray<any> | undefined>>) & {
+    readonly [key: string]: AddToSetOperators<any> | any;
+};
+
+/** @public */
+export declare type SetProfilingLevelOptions = CommandOperationOptions;
+
+/* Excluded from this release type: SeverityLevel */
+
+/** @public */
+export declare type Sort = string | Exclude<SortDirection, {
+    $meta: string;
+}> | string[] | {
+    [key: string]: SortDirection;
+} | Map<string, SortDirection> | [string, SortDirection][] | [string, SortDirection];
+
+/** @public */
+export declare type SortDirection = 1 | -1 | 'asc' | 'desc' | 'ascending' | 'descending' | {
+    $meta: string;
+};
+
+/* Excluded from this release type: SortDirectionForCmd */
+
+/* Excluded from this release type: SortForCmd */
+
+/* Excluded from this release type: SrvPoller */
+
+/* Excluded from this release type: SrvPollerEvents */
+
+/* Excluded from this release type: SrvPollerOptions */
+
+/* Excluded from this release type: SrvPollingEvent */
+
+/* Excluded from this release type: StateMachineExecutable */
+
+/** @public */
+export declare type Stream = Socket | TLSSocket;
+
+/** @public */
+export declare class StreamDescription {
+    address: string;
+    type: ServerType;
+    minWireVersion?: number;
+    maxWireVersion?: number;
+    maxBsonObjectSize: number;
+    maxMessageSizeBytes: number;
+    maxWriteBatchSize: number;
+    compressors: CompressorName[];
+    compressor?: CompressorName;
+    logicalSessionTimeoutMinutes?: number;
+    loadBalanced: boolean;
+    __nodejs_mock_server__?: boolean;
+    zlibCompressionLevel?: number;
+    serverConnectionId: bigint | null;
+    hello: Document | null;
+    constructor(address: string, options?: StreamDescriptionOptions);
+    receiveResponse(response: Document | null): void;
+    parseServerConnectionID(serverConnectionId: number | Double | bigint | Long): bigint;
+}
+
+/** @public */
+export declare interface StreamDescriptionOptions {
+    compressors?: CompressorName[];
+    logicalSessionTimeoutMinutes?: number;
+    loadBalanced: boolean;
+}
+
+/**
+ * @public
+ * @experimental
+ */
+export declare type StrictFilter<TSchema> = Partial<TSchema> | ({
+    [Property in Join<NestedPaths<WithId<TSchema>, []>, '.'>]?: Condition<PropertyType<WithId<TSchema>, Property>>;
+} & RootFilterOperators<WithId<TSchema>>);
+
+/**
+ * @public
+ * @experimental
+ */
+export declare type StrictMatchKeysAndValues<TSchema> = Readonly<{
+    [Property in Join<NestedPaths<TSchema, []>, '.'>]?: PropertyType<TSchema, Property>;
+} & {
+    [Property in `${NestedPathsOfType<TSchema, any[]>}.$${`[${string}]` | ''}`]?: ArrayElement<PropertyType<TSchema, Property extends `${infer Key}.$${string}` ? Key : never>>;
+} & {
+    [Property in `${NestedPathsOfType<TSchema, Record<string, any>[]>}.$${`[${string}]` | ''}.${string}`]?: any;
+} & Document>;
+
+/**
+ * @public
+ * @experimental
+ */
+export declare type StrictUpdateFilter<TSchema> = {
+    $currentDate?: OnlyFieldsOfType<TSchema, Date | Timestamp, true | {
+        $type: 'date' | 'timestamp';
+    }>;
+    $inc?: OnlyFieldsOfType<TSchema, NumericType | undefined>;
+    $min?: StrictMatchKeysAndValues<TSchema>;
+    $max?: StrictMatchKeysAndValues<TSchema>;
+    $mul?: OnlyFieldsOfType<TSchema, NumericType | undefined>;
+    $rename?: Record<string, string>;
+    $set?: StrictMatchKeysAndValues<TSchema>;
+    $setOnInsert?: StrictMatchKeysAndValues<TSchema>;
+    $unset?: OnlyFieldsOfType<TSchema, any, '' | true | 1>;
+    $addToSet?: SetFields<TSchema>;
+    $pop?: OnlyFieldsOfType<TSchema, ReadonlyArray<any>, 1 | -1>;
+    $pull?: PullOperator<TSchema>;
+    $push?: PushOperator<TSchema>;
+    $pullAll?: PullAllOperator<TSchema>;
+    $bit?: OnlyFieldsOfType<TSchema, NumericType | undefined, {
+        and: IntegerType;
+    } | {
+        or: IntegerType;
+    } | {
+        xor: IntegerType;
+    }>;
+} & Document;
+
+/** @public */
+export declare type SupportedNodeConnectionOptions = SupportedTLSConnectionOptions & SupportedTLSSocketOptions & SupportedSocketOptions;
+
+/** @public */
+export declare type SupportedSocketOptions = Pick<TcpNetConnectOpts & {
+    autoSelectFamily?: boolean;
+    autoSelectFamilyAttemptTimeout?: number;
+}, (typeof LEGAL_TCP_SOCKET_OPTIONS)[number]>;
+
+/** @public */
+export declare type SupportedTLSConnectionOptions = Pick<ConnectionOptions_2 & {
+    allowPartialTrustChain?: boolean;
+}, (typeof LEGAL_TLS_SOCKET_OPTIONS)[number]>;
+
+/** @public */
+export declare type SupportedTLSSocketOptions = Pick<TLSSocketOptions, Extract<keyof TLSSocketOptions, (typeof LEGAL_TLS_SOCKET_OPTIONS)[number]>>;
+
+/** @public */
+export declare type TagSet = {
+    [key: string]: string;
+};
+
+/* Excluded from this release type: Timeout */
+
+/* Excluded from this release type: TimeoutContext */
+
+/* Excluded from this release type: TimeoutContextOptions */
+
+/** @public
+ * Configuration options for timeseries collections
+ * @see https://www.mongodb.com/docs/manual/core/timeseries-collections/
+ */
+export declare interface TimeSeriesCollectionOptions extends Document {
+    timeField: string;
+    metaField?: string;
+    granularity?: 'seconds' | 'minutes' | 'hours' | string;
+    bucketMaxSpanSeconds?: number;
+    bucketRoundingSeconds?: number;
+}
+
+export { Timestamp }
+
+/* Excluded from this release type: TokenCache */
+
+/* Excluded from this release type: Topology */
+
+/* Excluded from this release type: TOPOLOGY_CLOSED */
+
+/* Excluded from this release type: TOPOLOGY_DESCRIPTION_CHANGED */
+
+/* Excluded from this release type: TOPOLOGY_OPENING */
+
+/**
+ * Emitted when topology is closed.
+ * @public
+ * @category Event
+ */
+export declare class TopologyClosedEvent {
+    /** A unique identifier for the topology */
+    topologyId: number;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/**
+ * Representation of a deployment of servers
+ * @public
+ */
+export declare class TopologyDescription {
+    type: TopologyType;
+    setName: string | null;
+    maxSetVersion: number | null;
+    maxElectionId: ObjectId | null;
+    servers: Map<string, ServerDescription>;
+    stale: boolean;
+    compatible: boolean;
+    compatibilityError?: string;
+    logicalSessionTimeoutMinutes: number | null;
+    heartbeatFrequencyMS: number;
+    localThresholdMS: number;
+    commonWireVersion: number;
+    /**
+     * Create a TopologyDescription
+     */
+    constructor(topologyType: TopologyType, serverDescriptions?: Map<string, ServerDescription> | null, setName?: string | null, maxSetVersion?: number | null, maxElectionId?: ObjectId | null, commonWireVersion?: number | null, options?: TopologyDescriptionOptions | null);
+    /* Excluded from this release type: updateFromSrvPollingEvent */
+    /* Excluded from this release type: update */
+    get error(): MongoError | null;
+    /**
+     * Determines if the topology description has any known servers
+     */
+    get hasKnownServers(): boolean;
+    /**
+     * Determines if this topology description has a data-bearing server available.
+     */
+    get hasDataBearingServers(): boolean;
+    /* Excluded from this release type: hasServer */
+    /**
+     * Returns a JSON-serializable representation of the TopologyDescription.  This is primarily
+     * intended for use with JSON.stringify().
+     *
+     * This method will not throw.
+     */
+    toJSON(): Document;
+}
+
+/**
+ * Emitted when topology description changes.
+ * @public
+ * @category Event
+ */
+export declare class TopologyDescriptionChangedEvent {
+    /** A unique identifier for the topology */
+    topologyId: number;
+    /** The old topology description */
+    previousDescription: TopologyDescription;
+    /** The new topology description */
+    newDescription: TopologyDescription;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/** @public */
+export declare interface TopologyDescriptionOptions {
+    heartbeatFrequencyMS?: number;
+    localThresholdMS?: number;
+}
+
+/** @public */
+export declare type TopologyEvents = {
+    /* Excluded from this release type: connect */
+    serverOpening(event: ServerOpeningEvent): void;
+    serverClosed(event: ServerClosedEvent): void;
+    serverDescriptionChanged(event: ServerDescriptionChangedEvent): void;
+    topologyClosed(event: TopologyClosedEvent): void;
+    topologyOpening(event: TopologyOpeningEvent): void;
+    topologyDescriptionChanged(event: TopologyDescriptionChangedEvent): void;
+    error(error: Error): void;
+    /* Excluded from this release type: open */
+    close(): void;
+    timeout(): void;
+} & Omit<ServerEvents, 'connect'> & ConnectionPoolEvents & ConnectionEvents & EventEmitterWithState;
+
+/**
+ * Emitted when topology is initialized.
+ * @public
+ * @category Event
+ */
+export declare class TopologyOpeningEvent {
+    /** A unique identifier for the topology */
+    topologyId: number;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/* Excluded from this release type: TopologyOptions */
+
+/* Excluded from this release type: TopologyPrivate */
+
+/**
+ * An enumeration of topology types we know about
+ * @public
+ */
+export declare const TopologyType: Readonly<{
+    readonly Single: "Single";
+    readonly ReplicaSetNoPrimary: "ReplicaSetNoPrimary";
+    readonly ReplicaSetWithPrimary: "ReplicaSetWithPrimary";
+    readonly Sharded: "Sharded";
+    readonly Unknown: "Unknown";
+    readonly LoadBalanced: "LoadBalanced";
+}>;
+
+/** @public */
+export declare type TopologyType = (typeof TopologyType)[keyof typeof TopologyType];
+
+/** @public */
+export declare interface TopologyVersion {
+    processId: ObjectId;
+    counter: Long;
+}
+
+/**
+ * @public
+ * A class maintaining state related to a server transaction. Internal Only
+ */
+export declare class Transaction {
+    /* Excluded from this release type: state */
+    options: TransactionOptions;
+    /* Excluded from this release type: _pinnedServer */
+    /* Excluded from this release type: _recoveryToken */
+    /* Excluded from this release type: __constructor */
+    /* Excluded from this release type: server */
+    get recoveryToken(): Document | undefined;
+    get isPinned(): boolean;
+    /** @returns Whether the transaction has started */
+    get isStarting(): boolean;
+    /**
+     * @returns Whether this session is presently in a transaction
+     */
+    get isActive(): boolean;
+    get isCommitted(): boolean;
+    /* Excluded from this release type: transition */
+    /* Excluded from this release type: pinServer */
+    /* Excluded from this release type: unpinServer */
+}
+
+/**
+ * Configuration options for a transaction.
+ * @public
+ */
+export declare interface TransactionOptions extends Omit<CommandOperationOptions, 'timeoutMS'> {
+    /** A default read concern for commands in this transaction */
+    readConcern?: ReadConcernLike;
+    /** A default writeConcern for commands in this transaction */
+    writeConcern?: WriteConcern;
+    /** A default read preference for commands in this transaction */
+    readPreference?: ReadPreferenceLike;
+    /** Specifies the maximum amount of time to allow a commit action on a transaction to run in milliseconds */
+    maxCommitTimeMS?: number;
+}
+
+/* Excluded from this release type: TxnState */
+
+/**
+ * Typescript type safe event emitter
+ * @public
+ */
+export declare interface TypedEventEmitter<Events extends EventsDescription> extends EventEmitter {
+    addListener<EventKey extends keyof Events>(event: EventKey, listener: Events[EventKey]): this;
+    addListener(event: CommonEvents, listener: (eventName: string | symbol, listener: GenericListener) => void): this;
+    addListener(event: string | symbol, listener: GenericListener): this;
+    on<EventKey extends keyof Events>(event: EventKey, listener: Events[EventKey]): this;
+    on(event: CommonEvents, listener: (eventName: string | symbol, listener: GenericListener) => void): this;
+    on(event: string | symbol, listener: GenericListener): this;
+    once<EventKey extends keyof Events>(event: EventKey, listener: Events[EventKey]): this;
+    once(event: CommonEvents, listener: (eventName: string | symbol, listener: GenericListener) => void): this;
+    once(event: string | symbol, listener: GenericListener): this;
+    removeListener<EventKey extends keyof Events>(event: EventKey, listener: Events[EventKey]): this;
+    removeListener(event: CommonEvents, listener: (eventName: string | symbol, listener: GenericListener) => void): this;
+    removeListener(event: string | symbol, listener: GenericListener): this;
+    off<EventKey extends keyof Events>(event: EventKey, listener: Events[EventKey]): this;
+    off(event: CommonEvents, listener: (eventName: string | symbol, listener: GenericListener) => void): this;
+    off(event: string | symbol, listener: GenericListener): this;
+    removeAllListeners<EventKey extends keyof Events>(event?: EventKey | CommonEvents | symbol | string): this;
+    listeners<EventKey extends keyof Events>(event: EventKey | CommonEvents | symbol | string): Events[EventKey][];
+    rawListeners<EventKey extends keyof Events>(event: EventKey | CommonEvents | symbol | string): Events[EventKey][];
+    emit<EventKey extends keyof Events>(event: EventKey | symbol, ...args: Parameters<Events[EventKey]>): boolean;
+    listenerCount<EventKey extends keyof Events>(type: EventKey | CommonEvents | symbol | string): number;
+    prependListener<EventKey extends keyof Events>(event: EventKey, listener: Events[EventKey]): this;
+    prependListener(event: CommonEvents, listener: (eventName: string | symbol, listener: GenericListener) => void): this;
+    prependListener(event: string | symbol, listener: GenericListener): this;
+    prependOnceListener<EventKey extends keyof Events>(event: EventKey, listener: Events[EventKey]): this;
+    prependOnceListener(event: CommonEvents, listener: (eventName: string | symbol, listener: GenericListener) => void): this;
+    prependOnceListener(event: string | symbol, listener: GenericListener): this;
+    eventNames(): string[];
+    getMaxListeners(): number;
+    setMaxListeners(n: number): this;
+}
+
+/**
+ * Typescript type safe event emitter
+ * @public
+ */
+export declare class TypedEventEmitter<Events extends EventsDescription> extends EventEmitter {
+    /* Excluded from this release type: mongoLogger */
+    /* Excluded from this release type: component */
+    /* Excluded from this release type: emitAndLog */
+    /* Excluded from this release type: emitAndLogHeartbeat */
+    /* Excluded from this release type: emitAndLogCommand */
+}
+
+/** @public */
+export declare class UnorderedBulkOperation extends BulkOperationBase {
+    /* Excluded from this release type: __constructor */
+    handleWriteError(writeResult: BulkWriteResult): void;
+    addToOperationsList(batchType: BatchType, document: Document | UpdateStatement | DeleteStatement): this;
+}
+
+/** @public */
+export declare interface UpdateDescription<TSchema extends Document = Document> {
+    /**
+     * A document containing key:value pairs of names of the fields that were
+     * changed, and the new value for those fields.
+     */
+    updatedFields?: Partial<TSchema>;
+    /**
+     * An array of field names that were removed from the document.
+     */
+    removedFields?: string[];
+    /**
+     * An array of documents which record array truncations performed with pipeline-based updates using one or more of the following stages:
+     * - $addFields
+     * - $set
+     * - $replaceRoot
+     * - $replaceWith
+     */
+    truncatedArrays?: Array<{
+        /** The name of the truncated field. */
+        field: string;
+        /** The number of elements in the truncated array. */
+        newSize: number;
+    }>;
+    /**
+     * A document containing additional information about any ambiguous update paths from the update event.  The document
+     * maps the full ambiguous update path to an array containing the actual resolved components of the path.  For example,
+     * given a document shaped like `{ a: { '0': 0 } }`, and an update of `{ $inc: 'a.0' }`, disambiguated paths would look like
+     * the following:
+     *
+     * ```
+     *   {
+     *     'a.0': ['a', '0']
+     *   }
+     * ```
+     *
+     * This field is only present when there are ambiguous paths that are updated as a part of the update event and `showExpandedEvents`
+     * is enabled for the change stream.
+     * @sinceServerVersion 6.1.0
+     */
+    disambiguatedPaths?: Document;
+}
+
+/** @public */
+export declare type UpdateFilter<TSchema> = {
+    $currentDate?: OnlyFieldsOfType<TSchema, Date | Timestamp, true | {
+        $type: 'date' | 'timestamp';
+    }>;
+    $inc?: OnlyFieldsOfType<TSchema, NumericType | undefined>;
+    $min?: MatchKeysAndValues<TSchema>;
+    $max?: MatchKeysAndValues<TSchema>;
+    $mul?: OnlyFieldsOfType<TSchema, NumericType | undefined>;
+    $rename?: Record<string, string>;
+    $set?: MatchKeysAndValues<TSchema>;
+    $setOnInsert?: MatchKeysAndValues<TSchema>;
+    $unset?: OnlyFieldsOfType<TSchema, any, '' | true | 1>;
+    $addToSet?: SetFields<TSchema>;
+    $pop?: OnlyFieldsOfType<TSchema, ReadonlyArray<any>, 1 | -1>;
+    $pull?: PullOperator<TSchema>;
+    $push?: PushOperator<TSchema>;
+    $pullAll?: PullAllOperator<TSchema>;
+    $bit?: OnlyFieldsOfType<TSchema, NumericType | undefined, {
+        and: IntegerType;
+    } | {
+        or: IntegerType;
+    } | {
+        xor: IntegerType;
+    }>;
+} & Document;
+
+/** @public */
+export declare interface UpdateManyModel<TSchema extends Document = Document> {
+    /** The filter to limit the updated documents. */
+    filter: Filter<TSchema>;
+    /**
+     * The modifications to apply. The value can be either:
+     * UpdateFilter<TSchema> - A document that contains update operator expressions,
+     * Document[] - an aggregation pipeline.
+     */
+    update: UpdateFilter<TSchema> | Document[];
+    /** A set of filters specifying to which array elements an update should apply. */
+    arrayFilters?: Document[];
+    /** Specifies a collation. */
+    collation?: CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: Hint;
+    /** When true, creates a new document if no document matches the query. */
+    upsert?: boolean;
+}
+
+/** @public */
+export declare interface UpdateOneModel<TSchema extends Document = Document> {
+    /** The filter to limit the updated documents. */
+    filter: Filter<TSchema>;
+    /**
+     * The modifications to apply. The value can be either:
+     * UpdateFilter<TSchema> - A document that contains update operator expressions,
+     * Document[] - an aggregation pipeline.
+     */
+    update: UpdateFilter<TSchema> | Document[];
+    /** A set of filters specifying to which array elements an update should apply. */
+    arrayFilters?: Document[];
+    /** Specifies a collation. */
+    collation?: CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: Hint;
+    /** When true, creates a new document if no document matches the query. */
+    upsert?: boolean;
+}
+
+/** @public */
+export declare interface UpdateOptions extends CommandOperationOptions {
+    /** A set of filters specifying to which array elements an update should apply */
+    arrayFilters?: Document[];
+    /** If true, allows the write to opt-out of document level validation */
+    bypassDocumentValidation?: boolean;
+    /** Specifies a collation */
+    collation?: CollationOptions;
+    /** Specify that the update query should only consider plans using the hinted index */
+    hint?: Hint;
+    /** When true, creates a new document if no document matches the query */
+    upsert?: boolean;
+    /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+    let?: Document;
+}
+
+/**
+ * @public
+ * `TSchema` is the schema of the collection
+ */
+export declare interface UpdateResult<TSchema extends Document = Document> {
+    /** Indicates whether this write result was acknowledged. If not, then all other members of this result will be undefined */
+    acknowledged: boolean;
+    /** The number of documents that matched the filter */
+    matchedCount: number;
+    /** The number of documents that were modified */
+    modifiedCount: number;
+    /** The number of documents that were upserted */
+    upsertedCount: number;
+    /** The identifier of the inserted document if an upsert took place */
+    upsertedId: InferIdType<TSchema> | null;
+}
+
+/** @public */
+export declare interface UpdateStatement {
+    /** The query that matches documents to update. */
+    q: Document;
+    /** The modifications to apply. */
+    u: Document | Document[];
+    /**  If true, perform an insert if no documents match the query. */
+    upsert?: boolean;
+    /** If true, updates all documents that meet the query criteria. */
+    multi?: boolean;
+    /** Specifies the collation to use for the operation. */
+    collation?: CollationOptions;
+    /** An array of filter documents that determines which array elements to modify for an update operation on an array field. */
+    arrayFilters?: Document[];
+    /** A document or string that specifies the index to use to support the query predicate. */
+    hint?: Hint;
+}
+
+export { UUID }
+
+/** @public */
+export declare interface ValidateCollectionOptions extends CommandOperationOptions {
+    /** Validates a collection in the background, without interrupting read or write traffic (only in MongoDB 4.4+) */
+    background?: boolean;
+}
+
+/** @public */
+export declare type W = number | 'majority';
+
+/* Excluded from this release type: WAITING_FOR_SUITABLE_SERVER */
+
+/* Excluded from this release type: WaitingForSuitableServerEvent */
+
+/* Excluded from this release type: WaitQueueMember */
+
+/* Excluded from this release type: WithConnectionCallback */
+
+/** Add an _id field to an object shaped type @public */
+export declare type WithId<TSchema> = EnhancedOmit<TSchema, '_id'> & {
+    _id: InferIdType<TSchema>;
+};
+
+/** Remove the _id field from an object shaped type @public */
+export declare type WithoutId<TSchema> = Omit<TSchema, '_id'>;
+
+/** @public */
+export declare type WithSessionCallback<T = unknown> = (session: ClientSession) => Promise<T>;
+
+/** @public */
+export declare type WithTransactionCallback<T = any> = (session: ClientSession) => Promise<T>;
+
+/* Excluded from this release type: Workflow */
+
+/**
+ * A MongoDB WriteConcern, which describes the level of acknowledgement
+ * requested from MongoDB for write operations.
+ * @public
+ *
+ * @see https://www.mongodb.com/docs/manual/reference/write-concern/
+ */
+export declare class WriteConcern {
+    /**
+     * Request acknowledgment that the write operation has propagated to a specified number of mongod instances or to mongod instances with specified tags.
+     * If w is 0 and is set on a write operation, the server will not send a response.
+     */
+    readonly w?: W;
+    /** Request acknowledgment that the write operation has been written to the on-disk journal */
+    readonly journal?: boolean;
+    /**
+     * Specify a time limit to prevent write operations from blocking indefinitely.
+     */
+    readonly wtimeoutMS?: number;
+    /**
+     * Specify a time limit to prevent write operations from blocking indefinitely.
+     * @deprecated Will be removed in the next major version. Please use wtimeoutMS.
+     */
+    wtimeout?: number;
+    /**
+     * Request acknowledgment that the write operation has been written to the on-disk journal.
+     * @deprecated Will be removed in the next major version. Please use journal.
+     */
+    j?: boolean;
+    /**
+     * Equivalent to the j option.
+     * @deprecated Will be removed in the next major version. Please use journal.
+     */
+    fsync?: boolean | 1;
+    /**
+     * Constructs a WriteConcern from the write concern properties.
+     * @param w - request acknowledgment that the write operation has propagated to a specified number of mongod instances or to mongod instances with specified tags.
+     * @param wtimeoutMS - specify a time limit to prevent write operations from blocking indefinitely
+     * @param journal - request acknowledgment that the write operation has been written to the on-disk journal
+     * @param fsync - equivalent to the j option. Is deprecated and will be removed in the next major version.
+     */
+    constructor(w?: W, wtimeoutMS?: number, journal?: boolean, fsync?: boolean | 1);
+    /**
+     * Apply a write concern to a command document. Will modify and return the command.
+     */
+    static apply(command: Document, writeConcern: WriteConcern): Document;
+    /** Construct a WriteConcern given an options object. */
+    static fromOptions(options?: WriteConcernOptions | WriteConcern | W, inherit?: WriteConcernOptions | WriteConcern): WriteConcern | undefined;
+}
+
+/**
+ * An error representing a failure by the server to apply the requested write concern to the bulk operation.
+ * @public
+ * @category Error
+ */
+export declare class WriteConcernError {
+    /* Excluded from this release type: [kServerError] */
+    constructor(error: WriteConcernErrorData);
+    /** Write concern error code. */
+    get code(): number | undefined;
+    /** Write concern error message. */
+    get errmsg(): string | undefined;
+    /** Write concern error info. */
+    get errInfo(): Document | undefined;
+    toJSON(): WriteConcernErrorData;
+    toString(): string;
+}
+
+/** @public */
+export declare interface WriteConcernErrorData {
+    code: number;
+    errmsg: string;
+    errInfo?: Document;
+}
+
+/**
+ * The type of the result property of MongoWriteConcernError
+ * @public
+ */
+export declare interface WriteConcernErrorResult {
+    writeConcernError: {
+        code: number;
+        errmsg: string;
+        codeName?: string;
+        errInfo?: Document;
+    };
+    ok: number;
+    code?: number;
+    errorLabels?: string[];
+    [x: string | number]: unknown;
+}
+
+/** @public */
+export declare interface WriteConcernOptions {
+    /** Write Concern as an object */
+    writeConcern?: WriteConcern | WriteConcernSettings;
+}
+
+/** @public */
+export declare interface WriteConcernSettings {
+    /** The write concern */
+    w?: W;
+    /**
+     * The write concern timeout.
+     */
+    wtimeoutMS?: number;
+    /** The journal write concern */
+    journal?: boolean;
+    /**
+     * The journal write concern.
+     * @deprecated Will be removed in the next major version. Please use the journal option.
+     */
+    j?: boolean;
+    /**
+     * The write concern timeout.
+     */
+    wtimeout?: number;
+    /**
+     * The file sync write concern.
+     * @deprecated Will be removed in the next major version. Please use the journal option.
+     */
+    fsync?: boolean | 1;
+}
+
+/**
+ * An error that occurred during a BulkWrite on the server.
+ * @public
+ * @category Error
+ */
+export declare class WriteError {
+    err: BulkWriteOperationError;
+    constructor(err: BulkWriteOperationError);
+    /** WriteError code. */
+    get code(): number;
+    /** WriteError original bulk operation index. */
+    get index(): number;
+    /** WriteError message. */
+    get errmsg(): string | undefined;
+    /** WriteError details. */
+    get errInfo(): Document | undefined;
+    /** Returns the underlying operation that caused the error */
+    getOperation(): Document;
+    toJSON(): {
+        code: number;
+        index: number;
+        errmsg?: string;
+        op: Document;
+    };
+    toString(): string;
+}
+
+/* Excluded from this release type: WriteProtocolMessageType */
+
+export { }
diff --git a/backend/node_modules/mongodb/lib/beta.js b/backend/node_modules/mongodb/lib/beta.js
new file mode 100644
index 0000000..f9cc943
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/beta.js
@@ -0,0 +1,21 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+__exportStar(require("./index"), exports);
+/**
+ * @internal
+ *
+ * Since we don't bundle tslib helpers, we need to polyfill this method.
+ *
+ * This is used in the generated JS.  Adapted from https://github.com/microsoft/TypeScript/blob/aafdfe5b3f76f5c41abeec412ce73c86da94c75f/src/compiler/factory/emitHelpers.ts#L1202.
+ */
+function __exportStar(mod) {
+    for (const key of Object.keys(mod)) {
+        Object.defineProperty(exports, key, {
+            enumerable: true,
+            get: function () {
+                return mod[key];
+            }
+        });
+    }
+}
+//# sourceMappingURL=beta.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/beta.js.map b/backend/node_modules/mongodb/lib/beta.js.map
new file mode 100644
index 0000000..1d4cc54
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/beta.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"beta.js","sourceRoot":"","sources":["../src/beta.ts"],"names":[],"mappings":";;AAEA,0CAAwB;AAExB;;;;;;GAMG;AAEH,SAAS,YAAY,CAAC,GAAa;IACjC,KAAK,MAAM,GAAG,IAAI,MAAM,CAAC,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC;QACnC,MAAM,CAAC,cAAc,CAAC,OAAO,EAAE,GAAG,EAAE;YAClC,UAAU,EAAE,IAAI;YAChB,GAAG,EAAE;gBACH,OAAO,GAAG,CAAC,GAAG,CAAC,CAAC;YAClB,CAAC;SACF,CAAC,CAAC;IACL,CAAC;AACH,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/bson.js b/backend/node_modules/mongodb/lib/bson.js
new file mode 100644
index 0000000..b83d3cb
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/bson.js
@@ -0,0 +1,84 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.toUTF8 = exports.getBigInt64LE = exports.getFloat64LE = exports.getInt32LE = exports.UUID = exports.Timestamp = exports.serialize = exports.ObjectId = exports.MinKey = exports.MaxKey = exports.Long = exports.Int32 = exports.EJSON = exports.Double = exports.deserialize = exports.Decimal128 = exports.DBRef = exports.Code = exports.calculateObjectSize = exports.BSONType = exports.BSONSymbol = exports.BSONRegExp = exports.BSONError = exports.BSON = exports.Binary = void 0;
+exports.parseToElementsToArray = parseToElementsToArray;
+exports.pluckBSONSerializeOptions = pluckBSONSerializeOptions;
+exports.resolveBSONOptions = resolveBSONOptions;
+exports.parseUtf8ValidationOption = parseUtf8ValidationOption;
+/* eslint-disable no-restricted-imports */
+const bson_1 = require("bson");
+var bson_2 = require("bson");
+Object.defineProperty(exports, "Binary", { enumerable: true, get: function () { return bson_2.Binary; } });
+Object.defineProperty(exports, "BSON", { enumerable: true, get: function () { return bson_2.BSON; } });
+Object.defineProperty(exports, "BSONError", { enumerable: true, get: function () { return bson_2.BSONError; } });
+Object.defineProperty(exports, "BSONRegExp", { enumerable: true, get: function () { return bson_2.BSONRegExp; } });
+Object.defineProperty(exports, "BSONSymbol", { enumerable: true, get: function () { return bson_2.BSONSymbol; } });
+Object.defineProperty(exports, "BSONType", { enumerable: true, get: function () { return bson_2.BSONType; } });
+Object.defineProperty(exports, "calculateObjectSize", { enumerable: true, get: function () { return bson_2.calculateObjectSize; } });
+Object.defineProperty(exports, "Code", { enumerable: true, get: function () { return bson_2.Code; } });
+Object.defineProperty(exports, "DBRef", { enumerable: true, get: function () { return bson_2.DBRef; } });
+Object.defineProperty(exports, "Decimal128", { enumerable: true, get: function () { return bson_2.Decimal128; } });
+Object.defineProperty(exports, "deserialize", { enumerable: true, get: function () { return bson_2.deserialize; } });
+Object.defineProperty(exports, "Double", { enumerable: true, get: function () { return bson_2.Double; } });
+Object.defineProperty(exports, "EJSON", { enumerable: true, get: function () { return bson_2.EJSON; } });
+Object.defineProperty(exports, "Int32", { enumerable: true, get: function () { return bson_2.Int32; } });
+Object.defineProperty(exports, "Long", { enumerable: true, get: function () { return bson_2.Long; } });
+Object.defineProperty(exports, "MaxKey", { enumerable: true, get: function () { return bson_2.MaxKey; } });
+Object.defineProperty(exports, "MinKey", { enumerable: true, get: function () { return bson_2.MinKey; } });
+Object.defineProperty(exports, "ObjectId", { enumerable: true, get: function () { return bson_2.ObjectId; } });
+Object.defineProperty(exports, "serialize", { enumerable: true, get: function () { return bson_2.serialize; } });
+Object.defineProperty(exports, "Timestamp", { enumerable: true, get: function () { return bson_2.Timestamp; } });
+Object.defineProperty(exports, "UUID", { enumerable: true, get: function () { return bson_2.UUID; } });
+function parseToElementsToArray(bytes, offset) {
+    const res = bson_1.BSON.onDemand.parseToElements(bytes, offset);
+    return Array.isArray(res) ? res : [...res];
+}
+exports.getInt32LE = bson_1.BSON.onDemand.NumberUtils.getInt32LE;
+exports.getFloat64LE = bson_1.BSON.onDemand.NumberUtils.getFloat64LE;
+exports.getBigInt64LE = bson_1.BSON.onDemand.NumberUtils.getBigInt64LE;
+exports.toUTF8 = bson_1.BSON.onDemand.ByteUtils.toUTF8;
+function pluckBSONSerializeOptions(options) {
+    const { fieldsAsRaw, useBigInt64, promoteValues, promoteBuffers, promoteLongs, serializeFunctions, ignoreUndefined, bsonRegExp, raw, enableUtf8Validation } = options;
+    return {
+        fieldsAsRaw,
+        useBigInt64,
+        promoteValues,
+        promoteBuffers,
+        promoteLongs,
+        serializeFunctions,
+        ignoreUndefined,
+        bsonRegExp,
+        raw,
+        enableUtf8Validation
+    };
+}
+/**
+ * Merge the given BSONSerializeOptions, preferring options over the parent's options, and
+ * substituting defaults for values not set.
+ *
+ * @internal
+ */
+function resolveBSONOptions(options, parent) {
+    const parentOptions = parent?.bsonOptions;
+    return {
+        raw: options?.raw ?? parentOptions?.raw ?? false,
+        useBigInt64: options?.useBigInt64 ?? parentOptions?.useBigInt64 ?? false,
+        promoteLongs: options?.promoteLongs ?? parentOptions?.promoteLongs ?? true,
+        promoteValues: options?.promoteValues ?? parentOptions?.promoteValues ?? true,
+        promoteBuffers: options?.promoteBuffers ?? parentOptions?.promoteBuffers ?? false,
+        ignoreUndefined: options?.ignoreUndefined ?? parentOptions?.ignoreUndefined ?? false,
+        bsonRegExp: options?.bsonRegExp ?? parentOptions?.bsonRegExp ?? false,
+        serializeFunctions: options?.serializeFunctions ?? parentOptions?.serializeFunctions ?? false,
+        fieldsAsRaw: options?.fieldsAsRaw ?? parentOptions?.fieldsAsRaw ?? {},
+        enableUtf8Validation: options?.enableUtf8Validation ?? parentOptions?.enableUtf8Validation ?? true
+    };
+}
+/** @internal */
+function parseUtf8ValidationOption(options) {
+    const enableUtf8Validation = options?.enableUtf8Validation;
+    if (enableUtf8Validation === false) {
+        return { utf8: false };
+    }
+    return { utf8: { writeErrors: false } };
+}
+//# sourceMappingURL=bson.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/bson.js.map b/backend/node_modules/mongodb/lib/bson.js.map
new file mode 100644
index 0000000..83cd62e
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/bson.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"bson.js","sourceRoot":"","sources":["../src/bson.ts"],"names":[],"mappings":";;;AAkCA,wDAGC;AAgDD,8DAyBC;AAQD,gDAkBC;AAGD,8DAQC;AAnJD,0CAA0C;AAC1C,+BAA4E;AAE5E,6BA0Bc;AAzBZ,8FAAA,MAAM,OAAA;AACN,4FAAA,IAAI,OAAA;AACJ,iGAAA,SAAS,OAAA;AACT,kGAAA,UAAU,OAAA;AACV,kGAAA,UAAU,OAAA;AACV,gGAAA,QAAQ,OAAA;AACR,2GAAA,mBAAmB,OAAA;AACnB,4FAAA,IAAI,OAAA;AACJ,6FAAA,KAAK,OAAA;AACL,kGAAA,UAAU,OAAA;AACV,mGAAA,WAAW,OAAA;AAGX,8FAAA,MAAM,OAAA;AACN,6FAAA,KAAK,OAAA;AAEL,6FAAA,KAAK,OAAA;AACL,4FAAA,IAAI,OAAA;AACJ,8FAAA,MAAM,OAAA;AACN,8FAAA,MAAM,OAAA;AACN,gGAAA,QAAQ,OAAA;AAER,iGAAA,SAAS,OAAA;AACT,iGAAA,SAAS,OAAA;AACT,4FAAA,IAAI,OAAA;AAMN,SAAgB,sBAAsB,CAAC,KAAiB,EAAE,MAAe;IACvE,MAAM,GAAG,GAAG,WAAI,CAAC,QAAQ,CAAC,eAAe,CAAC,KAAK,EAAE,MAAM,CAAC,CAAC;IACzD,OAAO,KAAK,CAAC,OAAO,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC,GAAG,GAAG,CAAC,CAAC;AAC7C,CAAC;AAEY,QAAA,UAAU,GAAG,WAAI,CAAC,QAAQ,CAAC,WAAW,CAAC,UAAU,CAAC;AAClD,QAAA,YAAY,GAAG,WAAI,CAAC,QAAQ,CAAC,WAAW,CAAC,YAAY,CAAC;AACtD,QAAA,aAAa,GAAG,WAAI,CAAC,QAAQ,CAAC,WAAW,CAAC,aAAa,CAAC;AACxD,QAAA,MAAM,GAAG,WAAI,CAAC,QAAQ,CAAC,SAAS,CAAC,MAAM,CAAC;AA2CrD,SAAgB,yBAAyB,CAAC,OAA6B;IACrE,MAAM,EACJ,WAAW,EACX,WAAW,EACX,aAAa,EACb,cAAc,EACd,YAAY,EACZ,kBAAkB,EAClB,eAAe,EACf,UAAU,EACV,GAAG,EACH,oBAAoB,EACrB,GAAG,OAAO,CAAC;IACZ,OAAO;QACL,WAAW;QACX,WAAW;QACX,aAAa;QACb,cAAc;QACd,YAAY;QACZ,kBAAkB;QAClB,eAAe;QACf,UAAU;QACV,GAAG;QACH,oBAAoB;KACrB,CAAC;AACJ,CAAC;AAED;;;;;GAKG;AACH,SAAgB,kBAAkB,CAChC,OAA8B,EAC9B,MAA+C;IAE/C,MAAM,aAAa,GAAG,MAAM,EAAE,WAAW,CAAC;IAC1C,OAAO;QACL,GAAG,EAAE,OAAO,EAAE,GAAG,IAAI,aAAa,EAAE,GAAG,IAAI,KAAK;QAChD,WAAW,EAAE,OAAO,EAAE,WAAW,IAAI,aAAa,EAAE,WAAW,IAAI,KAAK;QACxE,YAAY,EAAE,OAAO,EAAE,YAAY,IAAI,aAAa,EAAE,YAAY,IAAI,IAAI;QAC1E,aAAa,EAAE,OAAO,EAAE,aAAa,IAAI,aAAa,EAAE,aAAa,IAAI,IAAI;QAC7E,cAAc,EAAE,OAAO,EAAE,cAAc,IAAI,aAAa,EAAE,cAAc,IAAI,KAAK;QACjF,eAAe,EAAE,OAAO,EAAE,eAAe,IAAI,aAAa,EAAE,eAAe,IAAI,KAAK;QACpF,UAAU,EAAE,OAAO,EAAE,UAAU,IAAI,aAAa,EAAE,UAAU,IAAI,KAAK;QACrE,kBAAkB,EAAE,OAAO,EAAE,kBAAkB,IAAI,aAAa,EAAE,kBAAkB,IAAI,KAAK;QAC7F,WAAW,EAAE,OAAO,EAAE,WAAW,IAAI,aAAa,EAAE,WAAW,IAAI,EAAE;QACrE,oBAAoB,EAClB,OAAO,EAAE,oBAAoB,IAAI,aAAa,EAAE,oBAAoB,IAAI,IAAI;KAC/E,CAAC;AACJ,CAAC;AAED,gBAAgB;AAChB,SAAgB,yBAAyB,CAAC,OAA4C;IAGpF,MAAM,oBAAoB,GAAG,OAAO,EAAE,oBAAoB,CAAC;IAC3D,IAAI,oBAAoB,KAAK,KAAK,EAAE,CAAC;QACnC,OAAO,EAAE,IAAI,EAAE,KAAK,EAAE,CAAC;IACzB,CAAC;IACD,OAAO,EAAE,IAAI,EAAE,EAAE,WAAW,EAAE,KAAK,EAAE,EAAE,CAAC;AAC1C,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/bulk/common.js b/backend/node_modules/mongodb/lib/bulk/common.js
new file mode 100644
index 0000000..1456373
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/bulk/common.js
@@ -0,0 +1,852 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.BulkOperationBase = exports.BulkWriteShimOperation = exports.FindOperators = exports.MongoBulkWriteError = exports.WriteError = exports.WriteConcernError = exports.BulkWriteResult = exports.Batch = exports.BatchType = void 0;
+exports.mergeBatchResults = mergeBatchResults;
+const bson_1 = require("../bson");
+const error_1 = require("../error");
+const delete_1 = require("../operations/delete");
+const execute_operation_1 = require("../operations/execute_operation");
+const insert_1 = require("../operations/insert");
+const operation_1 = require("../operations/operation");
+const update_1 = require("../operations/update");
+const utils_1 = require("../utils");
+const write_concern_1 = require("../write_concern");
+/** @internal */
+const kServerError = Symbol('serverError');
+/** @public */
+exports.BatchType = Object.freeze({
+    INSERT: 1,
+    UPDATE: 2,
+    DELETE: 3
+});
+/**
+ * Keeps the state of a unordered batch so we can rewrite the results
+ * correctly after command execution
+ *
+ * @public
+ */
+class Batch {
+    constructor(batchType, originalZeroIndex) {
+        this.originalZeroIndex = originalZeroIndex;
+        this.currentIndex = 0;
+        this.originalIndexes = [];
+        this.batchType = batchType;
+        this.operations = [];
+        this.size = 0;
+        this.sizeBytes = 0;
+    }
+}
+exports.Batch = Batch;
+/**
+ * @public
+ * The result of a bulk write.
+ */
+class BulkWriteResult {
+    static generateIdMap(ids) {
+        const idMap = {};
+        for (const doc of ids) {
+            idMap[doc.index] = doc._id;
+        }
+        return idMap;
+    }
+    /**
+     * Create a new BulkWriteResult instance
+     * @internal
+     */
+    constructor(bulkResult, isOrdered) {
+        this.result = bulkResult;
+        this.insertedCount = this.result.nInserted ?? 0;
+        this.matchedCount = this.result.nMatched ?? 0;
+        this.modifiedCount = this.result.nModified ?? 0;
+        this.deletedCount = this.result.nRemoved ?? 0;
+        this.upsertedCount = this.result.upserted.length ?? 0;
+        this.upsertedIds = BulkWriteResult.generateIdMap(this.result.upserted);
+        this.insertedIds = BulkWriteResult.generateIdMap(this.getSuccessfullyInsertedIds(bulkResult, isOrdered));
+        Object.defineProperty(this, 'result', { value: this.result, enumerable: false });
+    }
+    /** Evaluates to true if the bulk operation correctly executes */
+    get ok() {
+        return this.result.ok;
+    }
+    /**
+     * Returns document_ids that were actually inserted
+     * @internal
+     */
+    getSuccessfullyInsertedIds(bulkResult, isOrdered) {
+        if (bulkResult.writeErrors.length === 0)
+            return bulkResult.insertedIds;
+        if (isOrdered) {
+            return bulkResult.insertedIds.slice(0, bulkResult.writeErrors[0].index);
+        }
+        return bulkResult.insertedIds.filter(({ index }) => !bulkResult.writeErrors.some(writeError => index === writeError.index));
+    }
+    /** Returns the upserted id at the given index */
+    getUpsertedIdAt(index) {
+        return this.result.upserted[index];
+    }
+    /** Returns raw internal result */
+    getRawResponse() {
+        return this.result;
+    }
+    /** Returns true if the bulk operation contains a write error */
+    hasWriteErrors() {
+        return this.result.writeErrors.length > 0;
+    }
+    /** Returns the number of write errors off the bulk operation */
+    getWriteErrorCount() {
+        return this.result.writeErrors.length;
+    }
+    /** Returns a specific write error object */
+    getWriteErrorAt(index) {
+        return index < this.result.writeErrors.length ? this.result.writeErrors[index] : undefined;
+    }
+    /** Retrieve all write errors */
+    getWriteErrors() {
+        return this.result.writeErrors;
+    }
+    /** Retrieve the write concern error if one exists */
+    getWriteConcernError() {
+        if (this.result.writeConcernErrors.length === 0) {
+            return;
+        }
+        else if (this.result.writeConcernErrors.length === 1) {
+            // Return the error
+            return this.result.writeConcernErrors[0];
+        }
+        else {
+            // Combine the errors
+            let errmsg = '';
+            for (let i = 0; i < this.result.writeConcernErrors.length; i++) {
+                const err = this.result.writeConcernErrors[i];
+                errmsg = errmsg + err.errmsg;
+                // TODO: Something better
+                if (i === 0)
+                    errmsg = errmsg + ' and ';
+            }
+            return new WriteConcernError({ errmsg, code: error_1.MONGODB_ERROR_CODES.WriteConcernFailed });
+        }
+    }
+    toString() {
+        return `BulkWriteResult(${bson_1.EJSON.stringify(this.result)})`;
+    }
+    isOk() {
+        return this.result.ok === 1;
+    }
+}
+exports.BulkWriteResult = BulkWriteResult;
+/**
+ * An error representing a failure by the server to apply the requested write concern to the bulk operation.
+ * @public
+ * @category Error
+ */
+class WriteConcernError {
+    constructor(error) {
+        this[kServerError] = error;
+    }
+    /** Write concern error code. */
+    get code() {
+        return this[kServerError].code;
+    }
+    /** Write concern error message. */
+    get errmsg() {
+        return this[kServerError].errmsg;
+    }
+    /** Write concern error info. */
+    get errInfo() {
+        return this[kServerError].errInfo;
+    }
+    toJSON() {
+        return this[kServerError];
+    }
+    toString() {
+        return `WriteConcernError(${this.errmsg})`;
+    }
+}
+exports.WriteConcernError = WriteConcernError;
+/**
+ * An error that occurred during a BulkWrite on the server.
+ * @public
+ * @category Error
+ */
+class WriteError {
+    constructor(err) {
+        this.err = err;
+    }
+    /** WriteError code. */
+    get code() {
+        return this.err.code;
+    }
+    /** WriteError original bulk operation index. */
+    get index() {
+        return this.err.index;
+    }
+    /** WriteError message. */
+    get errmsg() {
+        return this.err.errmsg;
+    }
+    /** WriteError details. */
+    get errInfo() {
+        return this.err.errInfo;
+    }
+    /** Returns the underlying operation that caused the error */
+    getOperation() {
+        return this.err.op;
+    }
+    toJSON() {
+        return { code: this.err.code, index: this.err.index, errmsg: this.err.errmsg, op: this.err.op };
+    }
+    toString() {
+        return `WriteError(${JSON.stringify(this.toJSON())})`;
+    }
+}
+exports.WriteError = WriteError;
+/** Merges results into shared data structure */
+function mergeBatchResults(batch, bulkResult, err, result) {
+    // If we have an error set the result to be the err object
+    if (err) {
+        result = err;
+    }
+    else if (result && result.result) {
+        result = result.result;
+    }
+    if (result == null) {
+        return;
+    }
+    // Do we have a top level error stop processing and return
+    if (result.ok === 0 && bulkResult.ok === 1) {
+        bulkResult.ok = 0;
+        const writeError = {
+            index: 0,
+            code: result.code || 0,
+            errmsg: result.message,
+            errInfo: result.errInfo,
+            op: batch.operations[0]
+        };
+        bulkResult.writeErrors.push(new WriteError(writeError));
+        return;
+    }
+    else if (result.ok === 0 && bulkResult.ok === 0) {
+        return;
+    }
+    // If we have an insert Batch type
+    if (isInsertBatch(batch) && result.n) {
+        bulkResult.nInserted = bulkResult.nInserted + result.n;
+    }
+    // If we have an insert Batch type
+    if (isDeleteBatch(batch) && result.n) {
+        bulkResult.nRemoved = bulkResult.nRemoved + result.n;
+    }
+    let nUpserted = 0;
+    // We have an array of upserted values, we need to rewrite the indexes
+    if (Array.isArray(result.upserted)) {
+        nUpserted = result.upserted.length;
+        for (let i = 0; i < result.upserted.length; i++) {
+            bulkResult.upserted.push({
+                index: result.upserted[i].index + batch.originalZeroIndex,
+                _id: result.upserted[i]._id
+            });
+        }
+    }
+    else if (result.upserted) {
+        nUpserted = 1;
+        bulkResult.upserted.push({
+            index: batch.originalZeroIndex,
+            _id: result.upserted
+        });
+    }
+    // If we have an update Batch type
+    if (isUpdateBatch(batch) && result.n) {
+        const nModified = result.nModified;
+        bulkResult.nUpserted = bulkResult.nUpserted + nUpserted;
+        bulkResult.nMatched = bulkResult.nMatched + (result.n - nUpserted);
+        if (typeof nModified === 'number') {
+            bulkResult.nModified = bulkResult.nModified + nModified;
+        }
+        else {
+            bulkResult.nModified = 0;
+        }
+    }
+    if (Array.isArray(result.writeErrors)) {
+        for (let i = 0; i < result.writeErrors.length; i++) {
+            const writeError = {
+                index: batch.originalIndexes[result.writeErrors[i].index],
+                code: result.writeErrors[i].code,
+                errmsg: result.writeErrors[i].errmsg,
+                errInfo: result.writeErrors[i].errInfo,
+                op: batch.operations[result.writeErrors[i].index]
+            };
+            bulkResult.writeErrors.push(new WriteError(writeError));
+        }
+    }
+    if (result.writeConcernError) {
+        bulkResult.writeConcernErrors.push(new WriteConcernError(result.writeConcernError));
+    }
+}
+async function executeCommands(bulkOperation, options) {
+    if (bulkOperation.s.batches.length === 0) {
+        return new BulkWriteResult(bulkOperation.s.bulkResult, bulkOperation.isOrdered);
+    }
+    for (const batch of bulkOperation.s.batches) {
+        const finalOptions = (0, utils_1.resolveOptions)(bulkOperation, {
+            ...options,
+            ordered: bulkOperation.isOrdered
+        });
+        if (finalOptions.bypassDocumentValidation !== true) {
+            delete finalOptions.bypassDocumentValidation;
+        }
+        // Is the bypassDocumentValidation options specific
+        if (bulkOperation.s.bypassDocumentValidation === true) {
+            finalOptions.bypassDocumentValidation = true;
+        }
+        // Is the checkKeys option disabled
+        if (bulkOperation.s.checkKeys === false) {
+            finalOptions.checkKeys = false;
+        }
+        if (finalOptions.retryWrites) {
+            if (isUpdateBatch(batch)) {
+                finalOptions.retryWrites =
+                    finalOptions.retryWrites && !batch.operations.some(op => op.multi);
+            }
+            if (isDeleteBatch(batch)) {
+                finalOptions.retryWrites =
+                    finalOptions.retryWrites && !batch.operations.some(op => op.limit === 0);
+            }
+        }
+        const operation = isInsertBatch(batch)
+            ? new insert_1.InsertOperation(bulkOperation.s.namespace, batch.operations, finalOptions)
+            : isUpdateBatch(batch)
+                ? new update_1.UpdateOperation(bulkOperation.s.namespace, batch.operations, finalOptions)
+                : isDeleteBatch(batch)
+                    ? new delete_1.DeleteOperation(bulkOperation.s.namespace, batch.operations, finalOptions)
+                    : null;
+        if (operation == null)
+            throw new error_1.MongoRuntimeError(`Unknown batchType: ${batch.batchType}`);
+        let thrownError = null;
+        let result;
+        try {
+            result = await (0, execute_operation_1.executeOperation)(bulkOperation.s.collection.client, operation, finalOptions.timeoutContext);
+        }
+        catch (error) {
+            thrownError = error;
+        }
+        if (thrownError != null) {
+            if (thrownError instanceof error_1.MongoWriteConcernError) {
+                mergeBatchResults(batch, bulkOperation.s.bulkResult, thrownError, result);
+                const writeResult = new BulkWriteResult(bulkOperation.s.bulkResult, bulkOperation.isOrdered);
+                throw new MongoBulkWriteError({
+                    message: thrownError.result.writeConcernError.errmsg,
+                    code: thrownError.result.writeConcernError.code
+                }, writeResult);
+            }
+            else {
+                // Error is a driver related error not a bulk op error, return early
+                throw new MongoBulkWriteError(thrownError, new BulkWriteResult(bulkOperation.s.bulkResult, bulkOperation.isOrdered));
+            }
+        }
+        mergeBatchResults(batch, bulkOperation.s.bulkResult, thrownError, result);
+        const writeResult = new BulkWriteResult(bulkOperation.s.bulkResult, bulkOperation.isOrdered);
+        bulkOperation.handleWriteError(writeResult);
+    }
+    bulkOperation.s.batches.length = 0;
+    const writeResult = new BulkWriteResult(bulkOperation.s.bulkResult, bulkOperation.isOrdered);
+    bulkOperation.handleWriteError(writeResult);
+    return writeResult;
+}
+/**
+ * An error indicating an unsuccessful Bulk Write
+ * @public
+ * @category Error
+ */
+class MongoBulkWriteError extends error_1.MongoServerError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(error, result) {
+        super(error);
+        this.writeErrors = [];
+        if (error instanceof WriteConcernError)
+            this.err = error;
+        else if (!(error instanceof Error)) {
+            this.message = error.message;
+            this.code = error.code;
+            this.writeErrors = error.writeErrors ?? [];
+        }
+        this.result = result;
+        Object.assign(this, error);
+    }
+    get name() {
+        return 'MongoBulkWriteError';
+    }
+    /** Number of documents inserted. */
+    get insertedCount() {
+        return this.result.insertedCount;
+    }
+    /** Number of documents matched for update. */
+    get matchedCount() {
+        return this.result.matchedCount;
+    }
+    /** Number of documents modified. */
+    get modifiedCount() {
+        return this.result.modifiedCount;
+    }
+    /** Number of documents deleted. */
+    get deletedCount() {
+        return this.result.deletedCount;
+    }
+    /** Number of documents upserted. */
+    get upsertedCount() {
+        return this.result.upsertedCount;
+    }
+    /** Inserted document generated Id's, hash key is the index of the originating operation */
+    get insertedIds() {
+        return this.result.insertedIds;
+    }
+    /** Upserted document generated Id's, hash key is the index of the originating operation */
+    get upsertedIds() {
+        return this.result.upsertedIds;
+    }
+}
+exports.MongoBulkWriteError = MongoBulkWriteError;
+/**
+ * A builder object that is returned from {@link BulkOperationBase#find}.
+ * Is used to build a write operation that involves a query filter.
+ *
+ * @public
+ */
+class FindOperators {
+    /**
+     * Creates a new FindOperators object.
+     * @internal
+     */
+    constructor(bulkOperation) {
+        this.bulkOperation = bulkOperation;
+    }
+    /** Add a multiple update operation to the bulk operation */
+    update(updateDocument) {
+        const currentOp = buildCurrentOp(this.bulkOperation);
+        return this.bulkOperation.addToOperationsList(exports.BatchType.UPDATE, (0, update_1.makeUpdateStatement)(currentOp.selector, updateDocument, {
+            ...currentOp,
+            multi: true
+        }));
+    }
+    /** Add a single update operation to the bulk operation */
+    updateOne(updateDocument) {
+        if (!(0, utils_1.hasAtomicOperators)(updateDocument)) {
+            throw new error_1.MongoInvalidArgumentError('Update document requires atomic operators');
+        }
+        const currentOp = buildCurrentOp(this.bulkOperation);
+        return this.bulkOperation.addToOperationsList(exports.BatchType.UPDATE, (0, update_1.makeUpdateStatement)(currentOp.selector, updateDocument, { ...currentOp, multi: false }));
+    }
+    /** Add a replace one operation to the bulk operation */
+    replaceOne(replacement) {
+        if ((0, utils_1.hasAtomicOperators)(replacement)) {
+            throw new error_1.MongoInvalidArgumentError('Replacement document must not use atomic operators');
+        }
+        const currentOp = buildCurrentOp(this.bulkOperation);
+        return this.bulkOperation.addToOperationsList(exports.BatchType.UPDATE, (0, update_1.makeUpdateStatement)(currentOp.selector, replacement, { ...currentOp, multi: false }));
+    }
+    /** Add a delete one operation to the bulk operation */
+    deleteOne() {
+        const currentOp = buildCurrentOp(this.bulkOperation);
+        return this.bulkOperation.addToOperationsList(exports.BatchType.DELETE, (0, delete_1.makeDeleteStatement)(currentOp.selector, { ...currentOp, limit: 1 }));
+    }
+    /** Add a delete many operation to the bulk operation */
+    delete() {
+        const currentOp = buildCurrentOp(this.bulkOperation);
+        return this.bulkOperation.addToOperationsList(exports.BatchType.DELETE, (0, delete_1.makeDeleteStatement)(currentOp.selector, { ...currentOp, limit: 0 }));
+    }
+    /** Upsert modifier for update bulk operation, noting that this operation is an upsert. */
+    upsert() {
+        if (!this.bulkOperation.s.currentOp) {
+            this.bulkOperation.s.currentOp = {};
+        }
+        this.bulkOperation.s.currentOp.upsert = true;
+        return this;
+    }
+    /** Specifies the collation for the query condition. */
+    collation(collation) {
+        if (!this.bulkOperation.s.currentOp) {
+            this.bulkOperation.s.currentOp = {};
+        }
+        this.bulkOperation.s.currentOp.collation = collation;
+        return this;
+    }
+    /** Specifies arrayFilters for UpdateOne or UpdateMany bulk operations. */
+    arrayFilters(arrayFilters) {
+        if (!this.bulkOperation.s.currentOp) {
+            this.bulkOperation.s.currentOp = {};
+        }
+        this.bulkOperation.s.currentOp.arrayFilters = arrayFilters;
+        return this;
+    }
+    /** Specifies hint for the bulk operation. */
+    hint(hint) {
+        if (!this.bulkOperation.s.currentOp) {
+            this.bulkOperation.s.currentOp = {};
+        }
+        this.bulkOperation.s.currentOp.hint = hint;
+        return this;
+    }
+}
+exports.FindOperators = FindOperators;
+/**
+ * TODO(NODE-4063)
+ * BulkWrites merge complexity is implemented in executeCommands
+ * This provides a vehicle to treat bulkOperations like any other operation (hence "shim")
+ * We would like this logic to simply live inside the BulkWriteOperation class
+ * @internal
+ */
+class BulkWriteShimOperation extends operation_1.AbstractOperation {
+    constructor(bulkOperation, options) {
+        super(options);
+        this.bulkOperation = bulkOperation;
+    }
+    get commandName() {
+        return 'bulkWrite';
+    }
+    async execute(_server, session, timeoutContext) {
+        if (this.options.session == null) {
+            // An implicit session could have been created by 'executeOperation'
+            // So if we stick it on finalOptions here, each bulk operation
+            // will use this same session, it'll be passed in the same way
+            // an explicit session would be
+            this.options.session = session;
+        }
+        return await executeCommands(this.bulkOperation, { ...this.options, timeoutContext });
+    }
+}
+exports.BulkWriteShimOperation = BulkWriteShimOperation;
+/** @public */
+class BulkOperationBase {
+    /**
+     * Create a new OrderedBulkOperation or UnorderedBulkOperation instance
+     * @internal
+     */
+    constructor(collection, options, isOrdered) {
+        this.collection = collection;
+        // determine whether bulkOperation is ordered or unordered
+        this.isOrdered = isOrdered;
+        const topology = (0, utils_1.getTopology)(collection);
+        options = options == null ? {} : options;
+        // TODO Bring from driver information in hello
+        // Get the namespace for the write operations
+        const namespace = collection.s.namespace;
+        // Used to mark operation as executed
+        const executed = false;
+        // Current item
+        const currentOp = undefined;
+        // Set max byte size
+        const hello = topology.lastHello();
+        // If we have autoEncryption on, batch-splitting must be done on 2mb chunks, but single documents
+        // over 2mb are still allowed
+        const usingAutoEncryption = !!(topology.s.options && topology.s.options.autoEncrypter);
+        const maxBsonObjectSize = hello && hello.maxBsonObjectSize ? hello.maxBsonObjectSize : 1024 * 1024 * 16;
+        const maxBatchSizeBytes = usingAutoEncryption ? 1024 * 1024 * 2 : maxBsonObjectSize;
+        const maxWriteBatchSize = hello && hello.maxWriteBatchSize ? hello.maxWriteBatchSize : 1000;
+        // Calculates the largest possible size of an Array key, represented as a BSON string
+        // element. This calculation:
+        //     1 byte for BSON type
+        //     # of bytes = length of (string representation of (maxWriteBatchSize - 1))
+        //   + 1 bytes for null terminator
+        const maxKeySize = (maxWriteBatchSize - 1).toString(10).length + 2;
+        // Final options for retryable writes
+        let finalOptions = Object.assign({}, options);
+        finalOptions = (0, utils_1.applyRetryableWrites)(finalOptions, collection.s.db);
+        // Final results
+        const bulkResult = {
+            ok: 1,
+            writeErrors: [],
+            writeConcernErrors: [],
+            insertedIds: [],
+            nInserted: 0,
+            nUpserted: 0,
+            nMatched: 0,
+            nModified: 0,
+            nRemoved: 0,
+            upserted: []
+        };
+        // Internal state
+        this.s = {
+            // Final result
+            bulkResult,
+            // Current batch state
+            currentBatch: undefined,
+            currentIndex: 0,
+            // ordered specific
+            currentBatchSize: 0,
+            currentBatchSizeBytes: 0,
+            // unordered specific
+            currentInsertBatch: undefined,
+            currentUpdateBatch: undefined,
+            currentRemoveBatch: undefined,
+            batches: [],
+            // Write concern
+            writeConcern: write_concern_1.WriteConcern.fromOptions(options),
+            // Max batch size options
+            maxBsonObjectSize,
+            maxBatchSizeBytes,
+            maxWriteBatchSize,
+            maxKeySize,
+            // Namespace
+            namespace,
+            // Topology
+            topology,
+            // Options
+            options: finalOptions,
+            // BSON options
+            bsonOptions: (0, bson_1.resolveBSONOptions)(options),
+            // Current operation
+            currentOp,
+            // Executed
+            executed,
+            // Collection
+            collection,
+            // Fundamental error
+            err: undefined,
+            // check keys
+            checkKeys: typeof options.checkKeys === 'boolean' ? options.checkKeys : false
+        };
+        // bypass Validation
+        if (options.bypassDocumentValidation === true) {
+            this.s.bypassDocumentValidation = true;
+        }
+    }
+    /**
+     * Add a single insert document to the bulk operation
+     *
+     * @example
+     * ```ts
+     * const bulkOp = collection.initializeOrderedBulkOp();
+     *
+     * // Adds three inserts to the bulkOp.
+     * bulkOp
+     *   .insert({ a: 1 })
+     *   .insert({ b: 2 })
+     *   .insert({ c: 3 });
+     * await bulkOp.execute();
+     * ```
+     */
+    insert(document) {
+        (0, utils_1.maybeAddIdToDocuments)(this.collection, document, {
+            forceServerObjectId: this.shouldForceServerObjectId()
+        });
+        return this.addToOperationsList(exports.BatchType.INSERT, document);
+    }
+    /**
+     * Builds a find operation for an update/updateOne/delete/deleteOne/replaceOne.
+     * Returns a builder object used to complete the definition of the operation.
+     *
+     * @example
+     * ```ts
+     * const bulkOp = collection.initializeOrderedBulkOp();
+     *
+     * // Add an updateOne to the bulkOp
+     * bulkOp.find({ a: 1 }).updateOne({ $set: { b: 2 } });
+     *
+     * // Add an updateMany to the bulkOp
+     * bulkOp.find({ c: 3 }).update({ $set: { d: 4 } });
+     *
+     * // Add an upsert
+     * bulkOp.find({ e: 5 }).upsert().updateOne({ $set: { f: 6 } });
+     *
+     * // Add a deletion
+     * bulkOp.find({ g: 7 }).deleteOne();
+     *
+     * // Add a multi deletion
+     * bulkOp.find({ h: 8 }).delete();
+     *
+     * // Add a replaceOne
+     * bulkOp.find({ i: 9 }).replaceOne({writeConcern: { j: 10 }});
+     *
+     * // Update using a pipeline (requires Mongodb 4.2 or higher)
+     * bulk.find({ k: 11, y: { $exists: true }, z: { $exists: true } }).updateOne([
+     *   { $set: { total: { $sum: [ '$y', '$z' ] } } }
+     * ]);
+     *
+     * // All of the ops will now be executed
+     * await bulkOp.execute();
+     * ```
+     */
+    find(selector) {
+        if (!selector) {
+            throw new error_1.MongoInvalidArgumentError('Bulk find operation must specify a selector');
+        }
+        // Save a current selector
+        this.s.currentOp = {
+            selector: selector
+        };
+        return new FindOperators(this);
+    }
+    /** Specifies a raw operation to perform in the bulk write. */
+    raw(op) {
+        if (op == null || typeof op !== 'object') {
+            throw new error_1.MongoInvalidArgumentError('Operation must be an object with an operation key');
+        }
+        if ('insertOne' in op) {
+            const forceServerObjectId = this.shouldForceServerObjectId();
+            const document = op.insertOne && op.insertOne.document == null
+                ? // TODO(NODE-6003): remove support for omitting the `documents` subdocument in bulk inserts
+                    op.insertOne
+                : op.insertOne.document;
+            (0, utils_1.maybeAddIdToDocuments)(this.collection, document, { forceServerObjectId });
+            return this.addToOperationsList(exports.BatchType.INSERT, document);
+        }
+        if ('replaceOne' in op || 'updateOne' in op || 'updateMany' in op) {
+            if ('replaceOne' in op) {
+                if ('q' in op.replaceOne) {
+                    throw new error_1.MongoInvalidArgumentError('Raw operations are not allowed');
+                }
+                const updateStatement = (0, update_1.makeUpdateStatement)(op.replaceOne.filter, op.replaceOne.replacement, { ...op.replaceOne, multi: false });
+                if ((0, utils_1.hasAtomicOperators)(updateStatement.u)) {
+                    throw new error_1.MongoInvalidArgumentError('Replacement document must not use atomic operators');
+                }
+                return this.addToOperationsList(exports.BatchType.UPDATE, updateStatement);
+            }
+            if ('updateOne' in op) {
+                if ('q' in op.updateOne) {
+                    throw new error_1.MongoInvalidArgumentError('Raw operations are not allowed');
+                }
+                const updateStatement = (0, update_1.makeUpdateStatement)(op.updateOne.filter, op.updateOne.update, {
+                    ...op.updateOne,
+                    multi: false
+                });
+                if (!(0, utils_1.hasAtomicOperators)(updateStatement.u)) {
+                    throw new error_1.MongoInvalidArgumentError('Update document requires atomic operators');
+                }
+                return this.addToOperationsList(exports.BatchType.UPDATE, updateStatement);
+            }
+            if ('updateMany' in op) {
+                if ('q' in op.updateMany) {
+                    throw new error_1.MongoInvalidArgumentError('Raw operations are not allowed');
+                }
+                const updateStatement = (0, update_1.makeUpdateStatement)(op.updateMany.filter, op.updateMany.update, {
+                    ...op.updateMany,
+                    multi: true
+                });
+                if (!(0, utils_1.hasAtomicOperators)(updateStatement.u)) {
+                    throw new error_1.MongoInvalidArgumentError('Update document requires atomic operators');
+                }
+                return this.addToOperationsList(exports.BatchType.UPDATE, updateStatement);
+            }
+        }
+        if ('deleteOne' in op) {
+            if ('q' in op.deleteOne) {
+                throw new error_1.MongoInvalidArgumentError('Raw operations are not allowed');
+            }
+            return this.addToOperationsList(exports.BatchType.DELETE, (0, delete_1.makeDeleteStatement)(op.deleteOne.filter, { ...op.deleteOne, limit: 1 }));
+        }
+        if ('deleteMany' in op) {
+            if ('q' in op.deleteMany) {
+                throw new error_1.MongoInvalidArgumentError('Raw operations are not allowed');
+            }
+            return this.addToOperationsList(exports.BatchType.DELETE, (0, delete_1.makeDeleteStatement)(op.deleteMany.filter, { ...op.deleteMany, limit: 0 }));
+        }
+        // otherwise an unknown operation was provided
+        throw new error_1.MongoInvalidArgumentError('bulkWrite only supports insertOne, updateOne, updateMany, deleteOne, deleteMany');
+    }
+    get length() {
+        return this.s.currentIndex;
+    }
+    get bsonOptions() {
+        return this.s.bsonOptions;
+    }
+    get writeConcern() {
+        return this.s.writeConcern;
+    }
+    get batches() {
+        const batches = [...this.s.batches];
+        if (this.isOrdered) {
+            if (this.s.currentBatch)
+                batches.push(this.s.currentBatch);
+        }
+        else {
+            if (this.s.currentInsertBatch)
+                batches.push(this.s.currentInsertBatch);
+            if (this.s.currentUpdateBatch)
+                batches.push(this.s.currentUpdateBatch);
+            if (this.s.currentRemoveBatch)
+                batches.push(this.s.currentRemoveBatch);
+        }
+        return batches;
+    }
+    async execute(options = {}) {
+        if (this.s.executed) {
+            throw new error_1.MongoBatchReExecutionError();
+        }
+        const writeConcern = write_concern_1.WriteConcern.fromOptions(options);
+        if (writeConcern) {
+            this.s.writeConcern = writeConcern;
+        }
+        // If we have current batch
+        if (this.isOrdered) {
+            if (this.s.currentBatch)
+                this.s.batches.push(this.s.currentBatch);
+        }
+        else {
+            if (this.s.currentInsertBatch)
+                this.s.batches.push(this.s.currentInsertBatch);
+            if (this.s.currentUpdateBatch)
+                this.s.batches.push(this.s.currentUpdateBatch);
+            if (this.s.currentRemoveBatch)
+                this.s.batches.push(this.s.currentRemoveBatch);
+        }
+        // If we have no operations in the bulk raise an error
+        if (this.s.batches.length === 0) {
+            throw new error_1.MongoInvalidArgumentError('Invalid BulkOperation, Batch cannot be empty');
+        }
+        this.s.executed = true;
+        const finalOptions = { ...this.s.options, ...options };
+        const operation = new BulkWriteShimOperation(this, finalOptions);
+        return await (0, execute_operation_1.executeOperation)(this.s.collection.client, operation, finalOptions.timeoutContext);
+    }
+    /**
+     * Handles the write error before executing commands
+     * @internal
+     */
+    handleWriteError(writeResult) {
+        if (this.s.bulkResult.writeErrors.length > 0) {
+            const msg = this.s.bulkResult.writeErrors[0].errmsg
+                ? this.s.bulkResult.writeErrors[0].errmsg
+                : 'write operation failed';
+            throw new MongoBulkWriteError({
+                message: msg,
+                code: this.s.bulkResult.writeErrors[0].code,
+                writeErrors: this.s.bulkResult.writeErrors
+            }, writeResult);
+        }
+        const writeConcernError = writeResult.getWriteConcernError();
+        if (writeConcernError) {
+            throw new MongoBulkWriteError(writeConcernError, writeResult);
+        }
+    }
+    shouldForceServerObjectId() {
+        return (this.s.options.forceServerObjectId === true ||
+            this.s.collection.s.db.options?.forceServerObjectId === true);
+    }
+}
+exports.BulkOperationBase = BulkOperationBase;
+function isInsertBatch(batch) {
+    return batch.batchType === exports.BatchType.INSERT;
+}
+function isUpdateBatch(batch) {
+    return batch.batchType === exports.BatchType.UPDATE;
+}
+function isDeleteBatch(batch) {
+    return batch.batchType === exports.BatchType.DELETE;
+}
+function buildCurrentOp(bulkOp) {
+    let { currentOp } = bulkOp.s;
+    bulkOp.s.currentOp = undefined;
+    if (!currentOp)
+        currentOp = {};
+    return currentOp;
+}
+//# sourceMappingURL=common.js.map
\ No newline at end of file
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+++ b/backend/node_modules/mongodb/lib/bulk/common.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/bulk/ordered.js b/backend/node_modules/mongodb/lib/bulk/ordered.js
new file mode 100644
index 0000000..667f724
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/bulk/ordered.js
@@ -0,0 +1,67 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.OrderedBulkOperation = void 0;
+const BSON = require("../bson");
+const error_1 = require("../error");
+const common_1 = require("./common");
+/** @public */
+class OrderedBulkOperation extends common_1.BulkOperationBase {
+    /** @internal */
+    constructor(collection, options) {
+        super(collection, options, true);
+    }
+    addToOperationsList(batchType, document) {
+        // Get the bsonSize
+        const bsonSize = BSON.calculateObjectSize(document, {
+            checkKeys: false,
+            // Since we don't know what the user selected for BSON options here,
+            // err on the safe side, and check the size with ignoreUndefined: false.
+            ignoreUndefined: false
+        });
+        // Throw error if the doc is bigger than the max BSON size
+        if (bsonSize >= this.s.maxBsonObjectSize)
+            // TODO(NODE-3483): Change this to MongoBSONError
+            throw new error_1.MongoInvalidArgumentError(`Document is larger than the maximum size ${this.s.maxBsonObjectSize}`);
+        // Create a new batch object if we don't have a current one
+        if (this.s.currentBatch == null) {
+            this.s.currentBatch = new common_1.Batch(batchType, this.s.currentIndex);
+        }
+        const maxKeySize = this.s.maxKeySize;
+        // Check if we need to create a new batch
+        if (
+        // New batch if we exceed the max batch op size
+        this.s.currentBatchSize + 1 >= this.s.maxWriteBatchSize ||
+            // New batch if we exceed the maxBatchSizeBytes. Only matters if batch already has a doc,
+            // since we can't sent an empty batch
+            (this.s.currentBatchSize > 0 &&
+                this.s.currentBatchSizeBytes + maxKeySize + bsonSize >= this.s.maxBatchSizeBytes) ||
+            // New batch if the new op does not have the same op type as the current batch
+            this.s.currentBatch.batchType !== batchType) {
+            // Save the batch to the execution stack
+            this.s.batches.push(this.s.currentBatch);
+            // Create a new batch
+            this.s.currentBatch = new common_1.Batch(batchType, this.s.currentIndex);
+            // Reset the current size trackers
+            this.s.currentBatchSize = 0;
+            this.s.currentBatchSizeBytes = 0;
+        }
+        if (batchType === common_1.BatchType.INSERT) {
+            this.s.bulkResult.insertedIds.push({
+                index: this.s.currentIndex,
+                _id: document._id
+            });
+        }
+        // We have an array of documents
+        if (Array.isArray(document)) {
+            throw new error_1.MongoInvalidArgumentError('Operation passed in cannot be an Array');
+        }
+        this.s.currentBatch.originalIndexes.push(this.s.currentIndex);
+        this.s.currentBatch.operations.push(document);
+        this.s.currentBatchSize += 1;
+        this.s.currentBatchSizeBytes += maxKeySize + bsonSize;
+        this.s.currentIndex += 1;
+        return this;
+    }
+}
+exports.OrderedBulkOperation = OrderedBulkOperation;
+//# sourceMappingURL=ordered.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/bulk/ordered.js.map b/backend/node_modules/mongodb/lib/bulk/ordered.js.map
new file mode 100644
index 0000000..42791c8
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/bulk/ordered.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"ordered.js","sourceRoot":"","sources":["../../src/bulk/ordered.ts"],"names":[],"mappings":";;;AACA,gCAAgC;AAEhC,oCAAqD;AAGrD,qCAAsF;AAEtF,cAAc;AACd,MAAa,oBAAqB,SAAQ,0BAAiB;IACzD,gBAAgB;IAChB,YAAY,UAAsB,EAAE,OAAyB;QAC3D,KAAK,CAAC,UAAU,EAAE,OAAO,EAAE,IAAI,CAAC,CAAC;IACnC,CAAC;IAED,mBAAmB,CACjB,SAAoB,EACpB,QAAsD;QAEtD,mBAAmB;QACnB,MAAM,QAAQ,GAAG,IAAI,CAAC,mBAAmB,CAAC,QAAQ,EAAE;YAClD,SAAS,EAAE,KAAK;YAChB,oEAAoE;YACpE,wEAAwE;YACxE,eAAe,EAAE,KAAK;SAChB,CAAC,CAAC;QAEV,0DAA0D;QAC1D,IAAI,QAAQ,IAAI,IAAI,CAAC,CAAC,CAAC,iBAAiB;YACtC,iDAAiD;YACjD,MAAM,IAAI,iCAAyB,CACjC,4CAA4C,IAAI,CAAC,CAAC,CAAC,iBAAiB,EAAE,CACvE,CAAC;QAEJ,2DAA2D;QAC3D,IAAI,IAAI,CAAC,CAAC,CAAC,YAAY,IAAI,IAAI,EAAE,CAAC;YAChC,IAAI,CAAC,CAAC,CAAC,YAAY,GAAG,IAAI,cAAK,CAAC,SAAS,EAAE,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,CAAC;QAClE,CAAC;QAED,MAAM,UAAU,GAAG,IAAI,CAAC,CAAC,CAAC,UAAU,CAAC;QAErC,yCAAyC;QACzC;QACE,+CAA+C;QAC/C,IAAI,CAAC,CAAC,CAAC,gBAAgB,GAAG,CAAC,IAAI,IAAI,CAAC,CAAC,CAAC,iBAAiB;YACvD,yFAAyF;YACzF,qCAAqC;YACrC,CAAC,IAAI,CAAC,CAAC,CAAC,gBAAgB,GAAG,CAAC;gBAC1B,IAAI,CAAC,CAAC,CAAC,qBAAqB,GAAG,UAAU,GAAG,QAAQ,IAAI,IAAI,CAAC,CAAC,CAAC,iBAAiB,CAAC;YACnF,8EAA8E;YAC9E,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,SAAS,KAAK,SAAS,EAC3C,CAAC;YACD,wCAAwC;YACxC,IAAI,CAAC,CAAC,CAAC,OAAO,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,CAAC;YAEzC,qBAAqB;YACrB,IAAI,CAAC,CAAC,CAAC,YAAY,GAAG,IAAI,cAAK,CAAC,SAAS,EAAE,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,CAAC;YAEhE,kCAAkC;YAClC,IAAI,CAAC,CAAC,CAAC,gBAAgB,GAAG,CAAC,CAAC;YAC5B,IAAI,CAAC,CAAC,CAAC,qBAAqB,GAAG,CAAC,CAAC;QACnC,CAAC;QAED,IAAI,SAAS,KAAK,kBAAS,CAAC,MAAM,EAAE,CAAC;YACnC,IAAI,CAAC,CAAC,CAAC,UAAU,CAAC,WAAW,CAAC,IAAI,CAAC;gBACjC,KAAK,EAAE,IAAI,CAAC,CAAC,CAAC,YAAY;gBAC1B,GAAG,EAAG,QAAqB,CAAC,GAAG;aAChC,CAAC,CAAC;QACL,CAAC;QAED,gCAAgC;QAChC,IAAI,KAAK,CAAC,OAAO,CAAC,QAAQ,CAAC,EAAE,CAAC;YAC5B,MAAM,IAAI,iCAAyB,CAAC,wCAAwC,CAAC,CAAC;QAChF,CAAC;QAED,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,eAAe,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,CAAC;QAC9D,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,UAAU,CAAC,IAAI,CAAC,QAAQ,CAAC,CAAC;QAC9C,IAAI,CAAC,CAAC,CAAC,gBAAgB,IAAI,CAAC,CAAC;QAC7B,IAAI,CAAC,CAAC,CAAC,qBAAqB,IAAI,UAAU,GAAG,QAAQ,CAAC;QACtD,IAAI,CAAC,CAAC,CAAC,YAAY,IAAI,CAAC,CAAC;QACzB,OAAO,IAAI,CAAC;IACd,CAAC;CACF;AAzED,oDAyEC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/bulk/unordered.js b/backend/node_modules/mongodb/lib/bulk/unordered.js
new file mode 100644
index 0000000..2d964d2
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/bulk/unordered.js
@@ -0,0 +1,92 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.UnorderedBulkOperation = void 0;
+const BSON = require("../bson");
+const error_1 = require("../error");
+const common_1 = require("./common");
+/** @public */
+class UnorderedBulkOperation extends common_1.BulkOperationBase {
+    /** @internal */
+    constructor(collection, options) {
+        super(collection, options, false);
+    }
+    handleWriteError(writeResult) {
+        if (this.s.batches.length) {
+            return;
+        }
+        return super.handleWriteError(writeResult);
+    }
+    addToOperationsList(batchType, document) {
+        // Get the bsonSize
+        const bsonSize = BSON.calculateObjectSize(document, {
+            checkKeys: false,
+            // Since we don't know what the user selected for BSON options here,
+            // err on the safe side, and check the size with ignoreUndefined: false.
+            ignoreUndefined: false
+        });
+        // Throw error if the doc is bigger than the max BSON size
+        if (bsonSize >= this.s.maxBsonObjectSize) {
+            // TODO(NODE-3483): Change this to MongoBSONError
+            throw new error_1.MongoInvalidArgumentError(`Document is larger than the maximum size ${this.s.maxBsonObjectSize}`);
+        }
+        // Holds the current batch
+        this.s.currentBatch = undefined;
+        // Get the right type of batch
+        if (batchType === common_1.BatchType.INSERT) {
+            this.s.currentBatch = this.s.currentInsertBatch;
+        }
+        else if (batchType === common_1.BatchType.UPDATE) {
+            this.s.currentBatch = this.s.currentUpdateBatch;
+        }
+        else if (batchType === common_1.BatchType.DELETE) {
+            this.s.currentBatch = this.s.currentRemoveBatch;
+        }
+        const maxKeySize = this.s.maxKeySize;
+        // Create a new batch object if we don't have a current one
+        if (this.s.currentBatch == null) {
+            this.s.currentBatch = new common_1.Batch(batchType, this.s.currentIndex);
+        }
+        // Check if we need to create a new batch
+        if (
+        // New batch if we exceed the max batch op size
+        this.s.currentBatch.size + 1 >= this.s.maxWriteBatchSize ||
+            // New batch if we exceed the maxBatchSizeBytes. Only matters if batch already has a doc,
+            // since we can't sent an empty batch
+            (this.s.currentBatch.size > 0 &&
+                this.s.currentBatch.sizeBytes + maxKeySize + bsonSize >= this.s.maxBatchSizeBytes) ||
+            // New batch if the new op does not have the same op type as the current batch
+            this.s.currentBatch.batchType !== batchType) {
+            // Save the batch to the execution stack
+            this.s.batches.push(this.s.currentBatch);
+            // Create a new batch
+            this.s.currentBatch = new common_1.Batch(batchType, this.s.currentIndex);
+        }
+        // We have an array of documents
+        if (Array.isArray(document)) {
+            throw new error_1.MongoInvalidArgumentError('Operation passed in cannot be an Array');
+        }
+        this.s.currentBatch.operations.push(document);
+        this.s.currentBatch.originalIndexes.push(this.s.currentIndex);
+        this.s.currentIndex = this.s.currentIndex + 1;
+        // Save back the current Batch to the right type
+        if (batchType === common_1.BatchType.INSERT) {
+            this.s.currentInsertBatch = this.s.currentBatch;
+            this.s.bulkResult.insertedIds.push({
+                index: this.s.bulkResult.insertedIds.length,
+                _id: document._id
+            });
+        }
+        else if (batchType === common_1.BatchType.UPDATE) {
+            this.s.currentUpdateBatch = this.s.currentBatch;
+        }
+        else if (batchType === common_1.BatchType.DELETE) {
+            this.s.currentRemoveBatch = this.s.currentBatch;
+        }
+        // Update current batch size
+        this.s.currentBatch.size += 1;
+        this.s.currentBatch.sizeBytes += maxKeySize + bsonSize;
+        return this;
+    }
+}
+exports.UnorderedBulkOperation = UnorderedBulkOperation;
+//# sourceMappingURL=unordered.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/bulk/unordered.js.map b/backend/node_modules/mongodb/lib/bulk/unordered.js.map
new file mode 100644
index 0000000..f6b65a4
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/bulk/unordered.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"unordered.js","sourceRoot":"","sources":["../../src/bulk/unordered.ts"],"names":[],"mappings":";;;AACA,gCAAgC;AAEhC,oCAAqD;AAGrD,qCAMkB;AAElB,cAAc;AACd,MAAa,sBAAuB,SAAQ,0BAAiB;IAC3D,gBAAgB;IAChB,YAAY,UAAsB,EAAE,OAAyB;QAC3D,KAAK,CAAC,UAAU,EAAE,OAAO,EAAE,KAAK,CAAC,CAAC;IACpC,CAAC;IAEQ,gBAAgB,CAAC,WAA4B;QACpD,IAAI,IAAI,CAAC,CAAC,CAAC,OAAO,CAAC,MAAM,EAAE,CAAC;YAC1B,OAAO;QACT,CAAC;QAED,OAAO,KAAK,CAAC,gBAAgB,CAAC,WAAW,CAAC,CAAC;IAC7C,CAAC;IAED,mBAAmB,CACjB,SAAoB,EACpB,QAAsD;QAEtD,mBAAmB;QACnB,MAAM,QAAQ,GAAG,IAAI,CAAC,mBAAmB,CAAC,QAAQ,EAAE;YAClD,SAAS,EAAE,KAAK;YAEhB,oEAAoE;YACpE,wEAAwE;YACxE,eAAe,EAAE,KAAK;SAChB,CAAC,CAAC;QAEV,0DAA0D;QAC1D,IAAI,QAAQ,IAAI,IAAI,CAAC,CAAC,CAAC,iBAAiB,EAAE,CAAC;YACzC,iDAAiD;YACjD,MAAM,IAAI,iCAAyB,CACjC,4CAA4C,IAAI,CAAC,CAAC,CAAC,iBAAiB,EAAE,CACvE,CAAC;QACJ,CAAC;QAED,0BAA0B;QAC1B,IAAI,CAAC,CAAC,CAAC,YAAY,GAAG,SAAS,CAAC;QAChC,8BAA8B;QAC9B,IAAI,SAAS,KAAK,kBAAS,CAAC,MAAM,EAAE,CAAC;YACnC,IAAI,CAAC,CAAC,CAAC,YAAY,GAAG,IAAI,CAAC,CAAC,CAAC,kBAAkB,CAAC;QAClD,CAAC;aAAM,IAAI,SAAS,KAAK,kBAAS,CAAC,MAAM,EAAE,CAAC;YAC1C,IAAI,CAAC,CAAC,CAAC,YAAY,GAAG,IAAI,CAAC,CAAC,CAAC,kBAAkB,CAAC;QAClD,CAAC;aAAM,IAAI,SAAS,KAAK,kBAAS,CAAC,MAAM,EAAE,CAAC;YAC1C,IAAI,CAAC,CAAC,CAAC,YAAY,GAAG,IAAI,CAAC,CAAC,CAAC,kBAAkB,CAAC;QAClD,CAAC;QAED,MAAM,UAAU,GAAG,IAAI,CAAC,CAAC,CAAC,UAAU,CAAC;QAErC,2DAA2D;QAC3D,IAAI,IAAI,CAAC,CAAC,CAAC,YAAY,IAAI,IAAI,EAAE,CAAC;YAChC,IAAI,CAAC,CAAC,CAAC,YAAY,GAAG,IAAI,cAAK,CAAC,SAAS,EAAE,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,CAAC;QAClE,CAAC;QAED,yCAAyC;QACzC;QACE,+CAA+C;QAC/C,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,IAAI,GAAG,CAAC,IAAI,IAAI,CAAC,CAAC,CAAC,iBAAiB;YACxD,yFAAyF;YACzF,qCAAqC;YACrC,CAAC,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,IAAI,GAAG,CAAC;gBAC3B,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,SAAS,GAAG,UAAU,GAAG,QAAQ,IAAI,IAAI,CAAC,CAAC,CAAC,iBAAiB,CAAC;YACpF,8EAA8E;YAC9E,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,SAAS,KAAK,SAAS,EAC3C,CAAC;YACD,wCAAwC;YACxC,IAAI,CAAC,CAAC,CAAC,OAAO,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,CAAC;YAEzC,qBAAqB;YACrB,IAAI,CAAC,CAAC,CAAC,YAAY,GAAG,IAAI,cAAK,CAAC,SAAS,EAAE,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,CAAC;QAClE,CAAC;QAED,gCAAgC;QAChC,IAAI,KAAK,CAAC,OAAO,CAAC,QAAQ,CAAC,EAAE,CAAC;YAC5B,MAAM,IAAI,iCAAyB,CAAC,wCAAwC,CAAC,CAAC;QAChF,CAAC;QAED,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,UAAU,CAAC,IAAI,CAAC,QAAQ,CAAC,CAAC;QAC9C,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,eAAe,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,CAAC;QAC9D,IAAI,CAAC,CAAC,CAAC,YAAY,GAAG,IAAI,CAAC,CAAC,CAAC,YAAY,GAAG,CAAC,CAAC;QAE9C,gDAAgD;QAChD,IAAI,SAAS,KAAK,kBAAS,CAAC,MAAM,EAAE,CAAC;YACnC,IAAI,CAAC,CAAC,CAAC,kBAAkB,GAAG,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC;YAChD,IAAI,CAAC,CAAC,CAAC,UAAU,CAAC,WAAW,CAAC,IAAI,CAAC;gBACjC,KAAK,EAAE,IAAI,CAAC,CAAC,CAAC,UAAU,CAAC,WAAW,CAAC,MAAM;gBAC3C,GAAG,EAAG,QAAqB,CAAC,GAAG;aAChC,CAAC,CAAC;QACL,CAAC;aAAM,IAAI,SAAS,KAAK,kBAAS,CAAC,MAAM,EAAE,CAAC;YAC1C,IAAI,CAAC,CAAC,CAAC,kBAAkB,GAAG,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC;QAClD,CAAC;aAAM,IAAI,SAAS,KAAK,kBAAS,CAAC,MAAM,EAAE,CAAC;YAC1C,IAAI,CAAC,CAAC,CAAC,kBAAkB,GAAG,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC;QAClD,CAAC;QAED,4BAA4B;QAC5B,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,IAAI,IAAI,CAAC,CAAC;QAC9B,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,SAAS,IAAI,UAAU,GAAG,QAAQ,CAAC;QAEvD,OAAO,IAAI,CAAC;IACd,CAAC;CACF;AAnGD,wDAmGC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/change_stream.js b/backend/node_modules/mongodb/lib/change_stream.js
new file mode 100644
index 0000000..f2fdefb
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/change_stream.js
@@ -0,0 +1,472 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ChangeStream = void 0;
+const collection_1 = require("./collection");
+const constants_1 = require("./constants");
+const abstract_cursor_1 = require("./cursor/abstract_cursor");
+const change_stream_cursor_1 = require("./cursor/change_stream_cursor");
+const db_1 = require("./db");
+const error_1 = require("./error");
+const mongo_client_1 = require("./mongo_client");
+const mongo_types_1 = require("./mongo_types");
+const resource_management_1 = require("./resource_management");
+const timeout_1 = require("./timeout");
+const utils_1 = require("./utils");
+/** @internal */
+const kCursorStream = Symbol('cursorStream');
+/** @internal */
+const kClosed = Symbol('closed');
+/** @internal */
+const kMode = Symbol('mode');
+const CHANGE_STREAM_OPTIONS = [
+    'resumeAfter',
+    'startAfter',
+    'startAtOperationTime',
+    'fullDocument',
+    'fullDocumentBeforeChange',
+    'showExpandedEvents'
+];
+const CHANGE_DOMAIN_TYPES = {
+    COLLECTION: Symbol('Collection'),
+    DATABASE: Symbol('Database'),
+    CLUSTER: Symbol('Cluster')
+};
+const CHANGE_STREAM_EVENTS = [constants_1.RESUME_TOKEN_CHANGED, constants_1.END, constants_1.CLOSE];
+const NO_RESUME_TOKEN_ERROR = 'A change stream document has been received that lacks a resume token (_id).';
+const CHANGESTREAM_CLOSED_ERROR = 'ChangeStream is closed';
+/**
+ * Creates a new Change Stream instance. Normally created using {@link Collection#watch|Collection.watch()}.
+ * @public
+ */
+class ChangeStream extends mongo_types_1.TypedEventEmitter {
+    /** @internal */
+    async asyncDispose() {
+        await this.close();
+    }
+    /**
+     * @internal
+     *
+     * @param parent - The parent object that created this change stream
+     * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents
+     */
+    constructor(parent, pipeline = [], options = {}) {
+        super();
+        this.pipeline = pipeline;
+        this.options = { ...options };
+        let serverSelectionTimeoutMS;
+        delete this.options.writeConcern;
+        if (parent instanceof collection_1.Collection) {
+            this.type = CHANGE_DOMAIN_TYPES.COLLECTION;
+            serverSelectionTimeoutMS = parent.s.db.client.options.serverSelectionTimeoutMS;
+        }
+        else if (parent instanceof db_1.Db) {
+            this.type = CHANGE_DOMAIN_TYPES.DATABASE;
+            serverSelectionTimeoutMS = parent.client.options.serverSelectionTimeoutMS;
+        }
+        else if (parent instanceof mongo_client_1.MongoClient) {
+            this.type = CHANGE_DOMAIN_TYPES.CLUSTER;
+            serverSelectionTimeoutMS = parent.options.serverSelectionTimeoutMS;
+        }
+        else {
+            throw new error_1.MongoChangeStreamError('Parent provided to ChangeStream constructor must be an instance of Collection, Db, or MongoClient');
+        }
+        this.contextOwner = Symbol();
+        this.parent = parent;
+        this.namespace = parent.s.namespace;
+        if (!this.options.readPreference && parent.readPreference) {
+            this.options.readPreference = parent.readPreference;
+        }
+        // Create contained Change Stream cursor
+        this.cursor = this._createChangeStreamCursor(options);
+        this[kClosed] = false;
+        this[kMode] = false;
+        // Listen for any `change` listeners being added to ChangeStream
+        this.on('newListener', eventName => {
+            if (eventName === 'change' && this.cursor && this.listenerCount('change') === 0) {
+                this._streamEvents(this.cursor);
+            }
+        });
+        this.on('removeListener', eventName => {
+            if (eventName === 'change' && this.listenerCount('change') === 0 && this.cursor) {
+                this[kCursorStream]?.removeAllListeners('data');
+            }
+        });
+        if (this.options.timeoutMS != null) {
+            this.timeoutContext = new timeout_1.CSOTTimeoutContext({
+                timeoutMS: this.options.timeoutMS,
+                serverSelectionTimeoutMS
+            });
+        }
+    }
+    /** @internal */
+    get cursorStream() {
+        return this[kCursorStream];
+    }
+    /** The cached resume token that is used to resume after the most recently returned change. */
+    get resumeToken() {
+        return this.cursor?.resumeToken;
+    }
+    /** Check if there is any document still available in the Change Stream */
+    async hasNext() {
+        this._setIsIterator();
+        // Change streams must resume indefinitely while each resume event succeeds.
+        // This loop continues until either a change event is received or until a resume attempt
+        // fails.
+        this.timeoutContext?.refresh();
+        try {
+            while (true) {
+                try {
+                    const hasNext = await this.cursor.hasNext();
+                    return hasNext;
+                }
+                catch (error) {
+                    try {
+                        await this._processErrorIteratorMode(error, this.cursor.id != null);
+                    }
+                    catch (error) {
+                        if (error instanceof error_1.MongoOperationTimeoutError && this.cursor.id == null) {
+                            throw error;
+                        }
+                        try {
+                            await this.close();
+                        }
+                        catch (error) {
+                            (0, utils_1.squashError)(error);
+                        }
+                        throw error;
+                    }
+                }
+            }
+        }
+        finally {
+            this.timeoutContext?.clear();
+        }
+    }
+    /** Get the next available document from the Change Stream. */
+    async next() {
+        this._setIsIterator();
+        // Change streams must resume indefinitely while each resume event succeeds.
+        // This loop continues until either a change event is received or until a resume attempt
+        // fails.
+        this.timeoutContext?.refresh();
+        try {
+            while (true) {
+                try {
+                    const change = await this.cursor.next();
+                    const processedChange = this._processChange(change ?? null);
+                    return processedChange;
+                }
+                catch (error) {
+                    try {
+                        await this._processErrorIteratorMode(error, this.cursor.id != null);
+                    }
+                    catch (error) {
+                        if (error instanceof error_1.MongoOperationTimeoutError && this.cursor.id == null) {
+                            throw error;
+                        }
+                        try {
+                            await this.close();
+                        }
+                        catch (error) {
+                            (0, utils_1.squashError)(error);
+                        }
+                        throw error;
+                    }
+                }
+            }
+        }
+        finally {
+            this.timeoutContext?.clear();
+        }
+    }
+    /**
+     * Try to get the next available document from the Change Stream's cursor or `null` if an empty batch is returned
+     */
+    async tryNext() {
+        this._setIsIterator();
+        // Change streams must resume indefinitely while each resume event succeeds.
+        // This loop continues until either a change event is received or until a resume attempt
+        // fails.
+        this.timeoutContext?.refresh();
+        try {
+            while (true) {
+                try {
+                    const change = await this.cursor.tryNext();
+                    return change ?? null;
+                }
+                catch (error) {
+                    try {
+                        await this._processErrorIteratorMode(error, this.cursor.id != null);
+                    }
+                    catch (error) {
+                        if (error instanceof error_1.MongoOperationTimeoutError && this.cursor.id == null)
+                            throw error;
+                        try {
+                            await this.close();
+                        }
+                        catch (error) {
+                            (0, utils_1.squashError)(error);
+                        }
+                        throw error;
+                    }
+                }
+            }
+        }
+        finally {
+            this.timeoutContext?.clear();
+        }
+    }
+    async *[Symbol.asyncIterator]() {
+        if (this.closed) {
+            return;
+        }
+        try {
+            // Change streams run indefinitely as long as errors are resumable
+            // So the only loop breaking condition is if `next()` throws
+            while (true) {
+                yield await this.next();
+            }
+        }
+        finally {
+            try {
+                await this.close();
+            }
+            catch (error) {
+                (0, utils_1.squashError)(error);
+            }
+        }
+    }
+    /** Is the cursor closed */
+    get closed() {
+        return this[kClosed] || this.cursor.closed;
+    }
+    /**
+     * Frees the internal resources used by the change stream.
+     */
+    async close() {
+        this.timeoutContext?.clear();
+        this.timeoutContext = undefined;
+        this[kClosed] = true;
+        const cursor = this.cursor;
+        try {
+            await cursor.close();
+        }
+        finally {
+            this._endStream();
+        }
+    }
+    /**
+     * Return a modified Readable stream including a possible transform method.
+     *
+     * NOTE: When using a Stream to process change stream events, the stream will
+     * NOT automatically resume in the case a resumable error is encountered.
+     *
+     * @throws MongoChangeStreamError if the underlying cursor or the change stream is closed
+     */
+    stream(options) {
+        if (this.closed) {
+            throw new error_1.MongoChangeStreamError(CHANGESTREAM_CLOSED_ERROR);
+        }
+        this.streamOptions = options;
+        return this.cursor.stream(options);
+    }
+    /** @internal */
+    _setIsEmitter() {
+        if (this[kMode] === 'iterator') {
+            // TODO(NODE-3485): Replace with MongoChangeStreamModeError
+            throw new error_1.MongoAPIError('ChangeStream cannot be used as an EventEmitter after being used as an iterator');
+        }
+        this[kMode] = 'emitter';
+    }
+    /** @internal */
+    _setIsIterator() {
+        if (this[kMode] === 'emitter') {
+            // TODO(NODE-3485): Replace with MongoChangeStreamModeError
+            throw new error_1.MongoAPIError('ChangeStream cannot be used as an iterator after being used as an EventEmitter');
+        }
+        this[kMode] = 'iterator';
+    }
+    /**
+     * Create a new change stream cursor based on self's configuration
+     * @internal
+     */
+    _createChangeStreamCursor(options) {
+        const changeStreamStageOptions = (0, utils_1.filterOptions)(options, CHANGE_STREAM_OPTIONS);
+        if (this.type === CHANGE_DOMAIN_TYPES.CLUSTER) {
+            changeStreamStageOptions.allChangesForCluster = true;
+        }
+        const pipeline = [{ $changeStream: changeStreamStageOptions }, ...this.pipeline];
+        const client = this.type === CHANGE_DOMAIN_TYPES.CLUSTER
+            ? this.parent
+            : this.type === CHANGE_DOMAIN_TYPES.DATABASE
+                ? this.parent.client
+                : this.type === CHANGE_DOMAIN_TYPES.COLLECTION
+                    ? this.parent.client
+                    : null;
+        if (client == null) {
+            // This should never happen because of the assertion in the constructor
+            throw new error_1.MongoRuntimeError(`Changestream type should only be one of cluster, database, collection. Found ${this.type.toString()}`);
+        }
+        const changeStreamCursor = new change_stream_cursor_1.ChangeStreamCursor(client, this.namespace, pipeline, {
+            ...options,
+            timeoutContext: this.timeoutContext
+                ? new abstract_cursor_1.CursorTimeoutContext(this.timeoutContext, this.contextOwner)
+                : undefined
+        });
+        for (const event of CHANGE_STREAM_EVENTS) {
+            changeStreamCursor.on(event, e => this.emit(event, e));
+        }
+        if (this.listenerCount(ChangeStream.CHANGE) > 0) {
+            this._streamEvents(changeStreamCursor);
+        }
+        return changeStreamCursor;
+    }
+    /** @internal */
+    _closeEmitterModeWithError(error) {
+        this.emit(ChangeStream.ERROR, error);
+        this.close().then(undefined, utils_1.squashError);
+    }
+    /** @internal */
+    _streamEvents(cursor) {
+        this._setIsEmitter();
+        const stream = this[kCursorStream] ?? cursor.stream();
+        this[kCursorStream] = stream;
+        stream.on('data', change => {
+            try {
+                const processedChange = this._processChange(change);
+                this.emit(ChangeStream.CHANGE, processedChange);
+            }
+            catch (error) {
+                this.emit(ChangeStream.ERROR, error);
+            }
+            this.timeoutContext?.refresh();
+        });
+        stream.on('error', error => this._processErrorStreamMode(error, this.cursor.id != null));
+    }
+    /** @internal */
+    _endStream() {
+        const cursorStream = this[kCursorStream];
+        if (cursorStream) {
+            ['data', 'close', 'end', 'error'].forEach(event => cursorStream.removeAllListeners(event));
+            cursorStream.destroy();
+        }
+        this[kCursorStream] = undefined;
+    }
+    /** @internal */
+    _processChange(change) {
+        if (this[kClosed]) {
+            // TODO(NODE-3485): Replace with MongoChangeStreamClosedError
+            throw new error_1.MongoAPIError(CHANGESTREAM_CLOSED_ERROR);
+        }
+        // a null change means the cursor has been notified, implicitly closing the change stream
+        if (change == null) {
+            // TODO(NODE-3485): Replace with MongoChangeStreamClosedError
+            throw new error_1.MongoRuntimeError(CHANGESTREAM_CLOSED_ERROR);
+        }
+        if (change && !change._id) {
+            throw new error_1.MongoChangeStreamError(NO_RESUME_TOKEN_ERROR);
+        }
+        // cache the resume token
+        this.cursor.cacheResumeToken(change._id);
+        // wipe the startAtOperationTime if there was one so that there won't be a conflict
+        // between resumeToken and startAtOperationTime if we need to reconnect the cursor
+        this.options.startAtOperationTime = undefined;
+        return change;
+    }
+    /** @internal */
+    _processErrorStreamMode(changeStreamError, cursorInitialized) {
+        // If the change stream has been closed explicitly, do not process error.
+        if (this[kClosed])
+            return;
+        if (cursorInitialized &&
+            ((0, error_1.isResumableError)(changeStreamError, this.cursor.maxWireVersion) ||
+                changeStreamError instanceof error_1.MongoOperationTimeoutError)) {
+            this._endStream();
+            this.cursor
+                .close()
+                .then(() => this._resume(changeStreamError), e => {
+                (0, utils_1.squashError)(e);
+                return this._resume(changeStreamError);
+            })
+                .then(() => {
+                if (changeStreamError instanceof error_1.MongoOperationTimeoutError)
+                    this.emit(ChangeStream.ERROR, changeStreamError);
+            }, () => this._closeEmitterModeWithError(changeStreamError));
+        }
+        else {
+            this._closeEmitterModeWithError(changeStreamError);
+        }
+    }
+    /** @internal */
+    async _processErrorIteratorMode(changeStreamError, cursorInitialized) {
+        if (this[kClosed]) {
+            // TODO(NODE-3485): Replace with MongoChangeStreamClosedError
+            throw new error_1.MongoAPIError(CHANGESTREAM_CLOSED_ERROR);
+        }
+        if (cursorInitialized &&
+            ((0, error_1.isResumableError)(changeStreamError, this.cursor.maxWireVersion) ||
+                changeStreamError instanceof error_1.MongoOperationTimeoutError)) {
+            try {
+                await this.cursor.close();
+            }
+            catch (error) {
+                (0, utils_1.squashError)(error);
+            }
+            await this._resume(changeStreamError);
+            if (changeStreamError instanceof error_1.MongoOperationTimeoutError)
+                throw changeStreamError;
+        }
+        else {
+            try {
+                await this.close();
+            }
+            catch (error) {
+                (0, utils_1.squashError)(error);
+            }
+            throw changeStreamError;
+        }
+    }
+    async _resume(changeStreamError) {
+        this.timeoutContext?.refresh();
+        const topology = (0, utils_1.getTopology)(this.parent);
+        try {
+            await topology.selectServer(this.cursor.readPreference, {
+                operationName: 'reconnect topology in change stream',
+                timeoutContext: this.timeoutContext
+            });
+            this.cursor = this._createChangeStreamCursor(this.cursor.resumeOptions);
+        }
+        catch {
+            // if the topology can't reconnect, close the stream
+            await this.close();
+            throw changeStreamError;
+        }
+    }
+}
+exports.ChangeStream = ChangeStream;
+/** @event */
+ChangeStream.RESPONSE = constants_1.RESPONSE;
+/** @event */
+ChangeStream.MORE = constants_1.MORE;
+/** @event */
+ChangeStream.INIT = constants_1.INIT;
+/** @event */
+ChangeStream.CLOSE = constants_1.CLOSE;
+/**
+ * Fired for each new matching change in the specified namespace. Attaching a `change`
+ * event listener to a Change Stream will switch the stream into flowing mode. Data will
+ * then be passed as soon as it is available.
+ * @event
+ */
+ChangeStream.CHANGE = constants_1.CHANGE;
+/** @event */
+ChangeStream.END = constants_1.END;
+/** @event */
+ChangeStream.ERROR = constants_1.ERROR;
+/**
+ * Emitted each time the change stream stores a new resume token.
+ * @event
+ */
+ChangeStream.RESUME_TOKEN_CHANGED = constants_1.RESUME_TOKEN_CHANGED;
+(0, resource_management_1.configureResourceManagement)(ChangeStream.prototype);
+//# sourceMappingURL=change_stream.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/change_stream.js.map b/backend/node_modules/mongodb/lib/change_stream.js.map
new file mode 100644
index 0000000..4cb0035
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/change_stream.js.map
@@ -0,0 +1 @@
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diff --git a/backend/node_modules/mongodb/lib/client-side-encryption/auto_encrypter.js b/backend/node_modules/mongodb/lib/client-side-encryption/auto_encrypter.js
new file mode 100644
index 0000000..92bd10b
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/client-side-encryption/auto_encrypter.js
@@ -0,0 +1,268 @@
+"use strict";
+var _a;
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.AutoEncrypter = exports.AutoEncryptionLoggerLevel = void 0;
+const net = require("net");
+const bson_1 = require("../bson");
+const constants_1 = require("../constants");
+const deps_1 = require("../deps");
+const error_1 = require("../error");
+const mongo_client_1 = require("../mongo_client");
+const utils_1 = require("../utils");
+const client_encryption_1 = require("./client_encryption");
+const cryptoCallbacks = require("./crypto_callbacks");
+const errors_1 = require("./errors");
+const mongocryptd_manager_1 = require("./mongocryptd_manager");
+const providers_1 = require("./providers");
+const state_machine_1 = require("./state_machine");
+/** @public */
+exports.AutoEncryptionLoggerLevel = Object.freeze({
+    FatalError: 0,
+    Error: 1,
+    Warning: 2,
+    Info: 3,
+    Trace: 4
+});
+/**
+ * @internal An internal class to be used by the driver for auto encryption
+ * **NOTE**: Not meant to be instantiated directly, this is for internal use only.
+ */
+class AutoEncrypter {
+    /** @internal */
+    static getMongoCrypt() {
+        const encryption = (0, deps_1.getMongoDBClientEncryption)();
+        if ('kModuleError' in encryption) {
+            throw encryption.kModuleError;
+        }
+        return encryption.MongoCrypt;
+    }
+    /**
+     * Create an AutoEncrypter
+     *
+     * **Note**: Do not instantiate this class directly. Rather, supply the relevant options to a MongoClient
+     *
+     * **Note**: Supplying `options.schemaMap` provides more security than relying on JSON Schemas obtained from the server.
+     * It protects against a malicious server advertising a false JSON Schema, which could trick the client into sending unencrypted data that should be encrypted.
+     * Schemas supplied in the schemaMap only apply to configuring automatic encryption for Client-Side Field Level Encryption.
+     * Other validation rules in the JSON schema will not be enforced by the driver and will result in an error.
+     *
+     * @example <caption>Create an AutoEncrypter that makes use of mongocryptd</caption>
+     * ```ts
+     * // Enabling autoEncryption via a MongoClient using mongocryptd
+     * const { MongoClient } = require('mongodb');
+     * const client = new MongoClient(URL, {
+     *   autoEncryption: {
+     *     kmsProviders: {
+     *       aws: {
+     *         accessKeyId: AWS_ACCESS_KEY,
+     *         secretAccessKey: AWS_SECRET_KEY
+     *       }
+     *     }
+     *   }
+     * });
+     * ```
+     *
+     * await client.connect();
+     * // From here on, the client will be encrypting / decrypting automatically
+     * @example <caption>Create an AutoEncrypter that makes use of libmongocrypt's CSFLE shared library</caption>
+     * ```ts
+     * // Enabling autoEncryption via a MongoClient using CSFLE shared library
+     * const { MongoClient } = require('mongodb');
+     * const client = new MongoClient(URL, {
+     *   autoEncryption: {
+     *     kmsProviders: {
+     *       aws: {}
+     *     },
+     *     extraOptions: {
+     *       cryptSharedLibPath: '/path/to/local/crypt/shared/lib',
+     *       cryptSharedLibRequired: true
+     *     }
+     *   }
+     * });
+     * ```
+     *
+     * await client.connect();
+     * // From here on, the client will be encrypting / decrypting automatically
+     */
+    constructor(client, options) {
+        /**
+         * Used by devtools to enable decorating decryption results.
+         *
+         * When set and enabled, `decrypt` will automatically recursively
+         * traverse a decrypted document and if a field has been decrypted,
+         * it will mark it as decrypted.  Compass uses this to determine which
+         * fields were decrypted.
+         */
+        this[_a] = false;
+        this._client = client;
+        this._bypassEncryption = options.bypassAutoEncryption === true;
+        this._keyVaultNamespace = options.keyVaultNamespace || 'admin.datakeys';
+        this._keyVaultClient = options.keyVaultClient || client;
+        this._metaDataClient = options.metadataClient || client;
+        this._proxyOptions = options.proxyOptions || {};
+        this._tlsOptions = options.tlsOptions || {};
+        this._kmsProviders = options.kmsProviders || {};
+        const mongoCryptOptions = {
+            cryptoCallbacks
+        };
+        if (options.schemaMap) {
+            mongoCryptOptions.schemaMap = Buffer.isBuffer(options.schemaMap)
+                ? options.schemaMap
+                : (0, bson_1.serialize)(options.schemaMap);
+        }
+        if (options.encryptedFieldsMap) {
+            mongoCryptOptions.encryptedFieldsMap = Buffer.isBuffer(options.encryptedFieldsMap)
+                ? options.encryptedFieldsMap
+                : (0, bson_1.serialize)(options.encryptedFieldsMap);
+        }
+        mongoCryptOptions.kmsProviders = !Buffer.isBuffer(this._kmsProviders)
+            ? (0, bson_1.serialize)(this._kmsProviders)
+            : this._kmsProviders;
+        if (options.options?.logger) {
+            mongoCryptOptions.logger = options.options.logger;
+        }
+        if (options.extraOptions && options.extraOptions.cryptSharedLibPath) {
+            mongoCryptOptions.cryptSharedLibPath = options.extraOptions.cryptSharedLibPath;
+        }
+        if (options.bypassQueryAnalysis) {
+            mongoCryptOptions.bypassQueryAnalysis = options.bypassQueryAnalysis;
+        }
+        this._bypassMongocryptdAndCryptShared = this._bypassEncryption || !!options.bypassQueryAnalysis;
+        if (options.extraOptions && options.extraOptions.cryptSharedLibSearchPaths) {
+            // Only for driver testing
+            mongoCryptOptions.cryptSharedLibSearchPaths = options.extraOptions.cryptSharedLibSearchPaths;
+        }
+        else if (!this._bypassMongocryptdAndCryptShared) {
+            mongoCryptOptions.cryptSharedLibSearchPaths = ['$SYSTEM'];
+        }
+        const MongoCrypt = AutoEncrypter.getMongoCrypt();
+        this._mongocrypt = new MongoCrypt(mongoCryptOptions);
+        this._contextCounter = 0;
+        if (options.extraOptions &&
+            options.extraOptions.cryptSharedLibRequired &&
+            !this.cryptSharedLibVersionInfo) {
+            throw new errors_1.MongoCryptInvalidArgumentError('`cryptSharedLibRequired` set but no crypt_shared library loaded');
+        }
+        // Only instantiate mongocryptd manager/client once we know for sure
+        // that we are not using the CSFLE shared library.
+        if (!this._bypassMongocryptdAndCryptShared && !this.cryptSharedLibVersionInfo) {
+            this._mongocryptdManager = new mongocryptd_manager_1.MongocryptdManager(options.extraOptions);
+            const clientOptions = {
+                serverSelectionTimeoutMS: 10000
+            };
+            if ((options.extraOptions == null || typeof options.extraOptions.mongocryptdURI !== 'string') &&
+                !net.getDefaultAutoSelectFamily) {
+                // Only set family if autoSelectFamily options are not supported.
+                clientOptions.family = 4;
+            }
+            // eslint-disable-next-line @typescript-eslint/ban-ts-comment
+            // @ts-ignore: TS complains as this always returns true on versions where it is present.
+            if (net.getDefaultAutoSelectFamily) {
+                // AutoEncrypter is made inside of MongoClient constructor while options are being parsed,
+                // we do not have access to the options that are in progress.
+                // TODO(NODE-6449): AutoEncrypter does not use client options for autoSelectFamily
+                Object.assign(clientOptions, (0, client_encryption_1.autoSelectSocketOptions)(this._client.s?.options ?? {}));
+            }
+            this._mongocryptdClient = new mongo_client_1.MongoClient(this._mongocryptdManager.uri, clientOptions);
+        }
+    }
+    /**
+     * Initializes the auto encrypter by spawning a mongocryptd and connecting to it.
+     *
+     * This function is a no-op when bypassSpawn is set or the crypt shared library is used.
+     */
+    async init() {
+        if (this._bypassMongocryptdAndCryptShared || this.cryptSharedLibVersionInfo) {
+            return;
+        }
+        if (!this._mongocryptdManager) {
+            throw new error_1.MongoRuntimeError('Reached impossible state: mongocryptdManager is undefined when neither bypassSpawn nor the shared lib are specified.');
+        }
+        if (!this._mongocryptdClient) {
+            throw new error_1.MongoRuntimeError('Reached impossible state: mongocryptdClient is undefined when neither bypassSpawn nor the shared lib are specified.');
+        }
+        if (!this._mongocryptdManager.bypassSpawn) {
+            await this._mongocryptdManager.spawn();
+        }
+        try {
+            const client = await this._mongocryptdClient.connect();
+            return client;
+        }
+        catch (error) {
+            const { message } = error;
+            if (message && (message.match(/timed out after/) || message.match(/ENOTFOUND/))) {
+                throw new error_1.MongoRuntimeError('Unable to connect to `mongocryptd`, please make sure it is running or in your PATH for auto-spawn', { cause: error });
+            }
+            throw error;
+        }
+    }
+    /**
+     * Cleans up the `_mongocryptdClient`, if present.
+     */
+    async teardown(force) {
+        await this._mongocryptdClient?.close(force);
+    }
+    /**
+     * Encrypt a command for a given namespace.
+     */
+    async encrypt(ns, cmd, options = {}) {
+        if (this._bypassEncryption) {
+            // If `bypassAutoEncryption` has been specified, don't encrypt
+            return cmd;
+        }
+        const commandBuffer = Buffer.isBuffer(cmd) ? cmd : (0, bson_1.serialize)(cmd, options);
+        const context = this._mongocrypt.makeEncryptionContext(utils_1.MongoDBCollectionNamespace.fromString(ns).db, commandBuffer);
+        context.id = this._contextCounter++;
+        context.ns = ns;
+        context.document = cmd;
+        const stateMachine = new state_machine_1.StateMachine({
+            promoteValues: false,
+            promoteLongs: false,
+            proxyOptions: this._proxyOptions,
+            tlsOptions: this._tlsOptions,
+            socketOptions: (0, client_encryption_1.autoSelectSocketOptions)(this._client.s.options)
+        });
+        return (0, bson_1.deserialize)(await stateMachine.execute(this, context, options.timeoutContext), {
+            promoteValues: false,
+            promoteLongs: false
+        });
+    }
+    /**
+     * Decrypt a command response
+     */
+    async decrypt(response, options = {}) {
+        const context = this._mongocrypt.makeDecryptionContext(response);
+        context.id = this._contextCounter++;
+        const stateMachine = new state_machine_1.StateMachine({
+            ...options,
+            proxyOptions: this._proxyOptions,
+            tlsOptions: this._tlsOptions,
+            socketOptions: (0, client_encryption_1.autoSelectSocketOptions)(this._client.s.options)
+        });
+        return await stateMachine.execute(this, context, options.timeoutContext?.csotEnabled() ? options.timeoutContext : undefined);
+    }
+    /**
+     * Ask the user for KMS credentials.
+     *
+     * This returns anything that looks like the kmsProviders original input
+     * option. It can be empty, and any provider specified here will override
+     * the original ones.
+     */
+    async askForKMSCredentials() {
+        return await (0, providers_1.refreshKMSCredentials)(this._kmsProviders);
+    }
+    /**
+     * Return the current libmongocrypt's CSFLE shared library version
+     * as `{ version: bigint, versionStr: string }`, or `null` if no CSFLE
+     * shared library was loaded.
+     */
+    get cryptSharedLibVersionInfo() {
+        return this._mongocrypt.cryptSharedLibVersionInfo;
+    }
+    static get libmongocryptVersion() {
+        return AutoEncrypter.getMongoCrypt().libmongocryptVersion;
+    }
+}
+exports.AutoEncrypter = AutoEncrypter;
+_a = constants_1.kDecorateResult;
+//# sourceMappingURL=auto_encrypter.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/client-side-encryption/auto_encrypter.js.map b/backend/node_modules/mongodb/lib/client-side-encryption/auto_encrypter.js.map
new file mode 100644
index 0000000..4758320
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/client-side-encryption/auto_encrypter.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/client-side-encryption/client_encryption.js b/backend/node_modules/mongodb/lib/client-side-encryption/client_encryption.js
new file mode 100644
index 0000000..74e9ac4
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/client-side-encryption/client_encryption.js
@@ -0,0 +1,603 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ClientEncryption = void 0;
+exports.autoSelectSocketOptions = autoSelectSocketOptions;
+const bson_1 = require("../bson");
+const deps_1 = require("../deps");
+const timeout_1 = require("../timeout");
+const utils_1 = require("../utils");
+const cryptoCallbacks = require("./crypto_callbacks");
+const errors_1 = require("./errors");
+const index_1 = require("./providers/index");
+const state_machine_1 = require("./state_machine");
+/**
+ * @public
+ * The public interface for explicit in-use encryption
+ */
+class ClientEncryption {
+    /** @internal */
+    static getMongoCrypt() {
+        const encryption = (0, deps_1.getMongoDBClientEncryption)();
+        if ('kModuleError' in encryption) {
+            throw encryption.kModuleError;
+        }
+        return encryption.MongoCrypt;
+    }
+    /**
+     * Create a new encryption instance
+     *
+     * @example
+     * ```ts
+     * new ClientEncryption(mongoClient, {
+     *   keyVaultNamespace: 'client.encryption',
+     *   kmsProviders: {
+     *     local: {
+     *       key: masterKey // The master key used for encryption/decryption. A 96-byte long Buffer
+     *     }
+     *   }
+     * });
+     * ```
+     *
+     * @example
+     * ```ts
+     * new ClientEncryption(mongoClient, {
+     *   keyVaultNamespace: 'client.encryption',
+     *   kmsProviders: {
+     *     aws: {
+     *       accessKeyId: AWS_ACCESS_KEY,
+     *       secretAccessKey: AWS_SECRET_KEY
+     *     }
+     *   }
+     * });
+     * ```
+     */
+    constructor(client, options) {
+        this._client = client;
+        this._proxyOptions = options.proxyOptions ?? {};
+        this._tlsOptions = options.tlsOptions ?? {};
+        this._kmsProviders = options.kmsProviders || {};
+        const { timeoutMS } = (0, utils_1.resolveTimeoutOptions)(client, options);
+        this._timeoutMS = timeoutMS;
+        if (options.keyVaultNamespace == null) {
+            throw new errors_1.MongoCryptInvalidArgumentError('Missing required option `keyVaultNamespace`');
+        }
+        const mongoCryptOptions = {
+            ...options,
+            cryptoCallbacks,
+            kmsProviders: !Buffer.isBuffer(this._kmsProviders)
+                ? (0, bson_1.serialize)(this._kmsProviders)
+                : this._kmsProviders
+        };
+        this._keyVaultNamespace = options.keyVaultNamespace;
+        this._keyVaultClient = options.keyVaultClient || client;
+        const MongoCrypt = ClientEncryption.getMongoCrypt();
+        this._mongoCrypt = new MongoCrypt(mongoCryptOptions);
+    }
+    /**
+     * Creates a data key used for explicit encryption and inserts it into the key vault namespace
+     *
+     * @example
+     * ```ts
+     * // Using async/await to create a local key
+     * const dataKeyId = await clientEncryption.createDataKey('local');
+     * ```
+     *
+     * @example
+     * ```ts
+     * // Using async/await to create an aws key
+     * const dataKeyId = await clientEncryption.createDataKey('aws', {
+     *   masterKey: {
+     *     region: 'us-east-1',
+     *     key: 'xxxxxxxxxxxxxx' // CMK ARN here
+     *   }
+     * });
+     * ```
+     *
+     * @example
+     * ```ts
+     * // Using async/await to create an aws key with a keyAltName
+     * const dataKeyId = await clientEncryption.createDataKey('aws', {
+     *   masterKey: {
+     *     region: 'us-east-1',
+     *     key: 'xxxxxxxxxxxxxx' // CMK ARN here
+     *   },
+     *   keyAltNames: [ 'mySpecialKey' ]
+     * });
+     * ```
+     */
+    async createDataKey(provider, options = {}) {
+        if (options.keyAltNames && !Array.isArray(options.keyAltNames)) {
+            throw new errors_1.MongoCryptInvalidArgumentError(`Option "keyAltNames" must be an array of strings, but was of type ${typeof options.keyAltNames}.`);
+        }
+        let keyAltNames = undefined;
+        if (options.keyAltNames && options.keyAltNames.length > 0) {
+            keyAltNames = options.keyAltNames.map((keyAltName, i) => {
+                if (typeof keyAltName !== 'string') {
+                    throw new errors_1.MongoCryptInvalidArgumentError(`Option "keyAltNames" must be an array of strings, but item at index ${i} was of type ${typeof keyAltName}`);
+                }
+                return (0, bson_1.serialize)({ keyAltName });
+            });
+        }
+        let keyMaterial = undefined;
+        if (options.keyMaterial) {
+            keyMaterial = (0, bson_1.serialize)({ keyMaterial: options.keyMaterial });
+        }
+        const dataKeyBson = (0, bson_1.serialize)({
+            provider,
+            ...options.masterKey
+        });
+        const context = this._mongoCrypt.makeDataKeyContext(dataKeyBson, {
+            keyAltNames,
+            keyMaterial
+        });
+        const stateMachine = new state_machine_1.StateMachine({
+            proxyOptions: this._proxyOptions,
+            tlsOptions: this._tlsOptions,
+            socketOptions: autoSelectSocketOptions(this._client.s.options)
+        });
+        const timeoutContext = options?.timeoutContext ??
+            timeout_1.TimeoutContext.create((0, utils_1.resolveTimeoutOptions)(this._client, { timeoutMS: this._timeoutMS }));
+        const dataKey = (0, bson_1.deserialize)(await stateMachine.execute(this, context, timeoutContext));
+        const { db: dbName, collection: collectionName } = utils_1.MongoDBCollectionNamespace.fromString(this._keyVaultNamespace);
+        const { insertedId } = await this._keyVaultClient
+            .db(dbName)
+            .collection(collectionName)
+            .insertOne(dataKey, {
+            writeConcern: { w: 'majority' },
+            timeoutMS: timeoutContext?.csotEnabled()
+                ? timeoutContext?.getRemainingTimeMSOrThrow()
+                : undefined
+        });
+        return insertedId;
+    }
+    /**
+     * Searches the keyvault for any data keys matching the provided filter.  If there are matches, rewrapManyDataKey then attempts to re-wrap the data keys using the provided options.
+     *
+     * If no matches are found, then no bulk write is performed.
+     *
+     * @example
+     * ```ts
+     * // rewrapping all data data keys (using a filter that matches all documents)
+     * const filter = {};
+     *
+     * const result = await clientEncryption.rewrapManyDataKey(filter);
+     * if (result.bulkWriteResult != null) {
+     *  // keys were re-wrapped, results will be available in the bulkWrite object.
+     * }
+     * ```
+     *
+     * @example
+     * ```ts
+     * // attempting to rewrap all data keys with no matches
+     * const filter = { _id: new Binary() } // assume _id matches no documents in the database
+     * const result = await clientEncryption.rewrapManyDataKey(filter);
+     *
+     * if (result.bulkWriteResult == null) {
+     *  // no keys matched, `bulkWriteResult` does not exist on the result object
+     * }
+     * ```
+     */
+    async rewrapManyDataKey(filter, options) {
+        let keyEncryptionKeyBson = undefined;
+        if (options) {
+            const keyEncryptionKey = Object.assign({ provider: options.provider }, options.masterKey);
+            keyEncryptionKeyBson = (0, bson_1.serialize)(keyEncryptionKey);
+        }
+        const filterBson = (0, bson_1.serialize)(filter);
+        const context = this._mongoCrypt.makeRewrapManyDataKeyContext(filterBson, keyEncryptionKeyBson);
+        const stateMachine = new state_machine_1.StateMachine({
+            proxyOptions: this._proxyOptions,
+            tlsOptions: this._tlsOptions,
+            socketOptions: autoSelectSocketOptions(this._client.s.options)
+        });
+        const timeoutContext = timeout_1.TimeoutContext.create((0, utils_1.resolveTimeoutOptions)(this._client, { timeoutMS: this._timeoutMS }));
+        const { v: dataKeys } = (0, bson_1.deserialize)(await stateMachine.execute(this, context, timeoutContext));
+        if (dataKeys.length === 0) {
+            return {};
+        }
+        const { db: dbName, collection: collectionName } = utils_1.MongoDBCollectionNamespace.fromString(this._keyVaultNamespace);
+        const replacements = dataKeys.map((key) => ({
+            updateOne: {
+                filter: { _id: key._id },
+                update: {
+                    $set: {
+                        masterKey: key.masterKey,
+                        keyMaterial: key.keyMaterial
+                    },
+                    $currentDate: {
+                        updateDate: true
+                    }
+                }
+            }
+        }));
+        const result = await this._keyVaultClient
+            .db(dbName)
+            .collection(collectionName)
+            .bulkWrite(replacements, {
+            writeConcern: { w: 'majority' },
+            timeoutMS: timeoutContext.csotEnabled() ? timeoutContext?.remainingTimeMS : undefined
+        });
+        return { bulkWriteResult: result };
+    }
+    /**
+     * Deletes the key with the provided id from the keyvault, if it exists.
+     *
+     * @example
+     * ```ts
+     * // delete a key by _id
+     * const id = new Binary(); // id is a bson binary subtype 4 object
+     * const { deletedCount } = await clientEncryption.deleteKey(id);
+     *
+     * if (deletedCount != null && deletedCount > 0) {
+     *   // successful deletion
+     * }
+     * ```
+     *
+     */
+    async deleteKey(_id) {
+        const { db: dbName, collection: collectionName } = utils_1.MongoDBCollectionNamespace.fromString(this._keyVaultNamespace);
+        return await this._keyVaultClient
+            .db(dbName)
+            .collection(collectionName)
+            .deleteOne({ _id }, { writeConcern: { w: 'majority' }, timeoutMS: this._timeoutMS });
+    }
+    /**
+     * Finds all the keys currently stored in the keyvault.
+     *
+     * This method will not throw.
+     *
+     * @returns a FindCursor over all keys in the keyvault.
+     * @example
+     * ```ts
+     * // fetching all keys
+     * const keys = await clientEncryption.getKeys().toArray();
+     * ```
+     */
+    getKeys() {
+        const { db: dbName, collection: collectionName } = utils_1.MongoDBCollectionNamespace.fromString(this._keyVaultNamespace);
+        return this._keyVaultClient
+            .db(dbName)
+            .collection(collectionName)
+            .find({}, { readConcern: { level: 'majority' }, timeoutMS: this._timeoutMS });
+    }
+    /**
+     * Finds a key in the keyvault with the specified _id.
+     *
+     * Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents
+     * match the id.  The promise rejects with an error if an error is thrown.
+     * @example
+     * ```ts
+     * // getting a key by id
+     * const id = new Binary(); // id is a bson binary subtype 4 object
+     * const key = await clientEncryption.getKey(id);
+     * if (!key) {
+     *  // key is null if there was no matching key
+     * }
+     * ```
+     */
+    async getKey(_id) {
+        const { db: dbName, collection: collectionName } = utils_1.MongoDBCollectionNamespace.fromString(this._keyVaultNamespace);
+        return await this._keyVaultClient
+            .db(dbName)
+            .collection(collectionName)
+            .findOne({ _id }, { readConcern: { level: 'majority' }, timeoutMS: this._timeoutMS });
+    }
+    /**
+     * Finds a key in the keyvault which has the specified keyAltName.
+     *
+     * @param keyAltName - a keyAltName to search for a key
+     * @returns Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents
+     * match the keyAltName.  The promise rejects with an error if an error is thrown.
+     * @example
+     * ```ts
+     * // get a key by alt name
+     * const keyAltName = 'keyAltName';
+     * const key = await clientEncryption.getKeyByAltName(keyAltName);
+     * if (!key) {
+     *  // key is null if there is no matching key
+     * }
+     * ```
+     */
+    async getKeyByAltName(keyAltName) {
+        const { db: dbName, collection: collectionName } = utils_1.MongoDBCollectionNamespace.fromString(this._keyVaultNamespace);
+        return await this._keyVaultClient
+            .db(dbName)
+            .collection(collectionName)
+            .findOne({ keyAltNames: keyAltName }, { readConcern: { level: 'majority' }, timeoutMS: this._timeoutMS });
+    }
+    /**
+     * Adds a keyAltName to a key identified by the provided _id.
+     *
+     * This method resolves to/returns the *old* key value (prior to adding the new altKeyName).
+     *
+     * @param _id - The id of the document to update.
+     * @param keyAltName - a keyAltName to search for a key
+     * @returns Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents
+     * match the id.  The promise rejects with an error if an error is thrown.
+     * @example
+     * ```ts
+     * // adding an keyAltName to a data key
+     * const id = new Binary();  // id is a bson binary subtype 4 object
+     * const keyAltName = 'keyAltName';
+     * const oldKey = await clientEncryption.addKeyAltName(id, keyAltName);
+     * if (!oldKey) {
+     *  // null is returned if there is no matching document with an id matching the supplied id
+     * }
+     * ```
+     */
+    async addKeyAltName(_id, keyAltName) {
+        const { db: dbName, collection: collectionName } = utils_1.MongoDBCollectionNamespace.fromString(this._keyVaultNamespace);
+        const value = await this._keyVaultClient
+            .db(dbName)
+            .collection(collectionName)
+            .findOneAndUpdate({ _id }, { $addToSet: { keyAltNames: keyAltName } }, { writeConcern: { w: 'majority' }, returnDocument: 'before', timeoutMS: this._timeoutMS });
+        return value;
+    }
+    /**
+     * Adds a keyAltName to a key identified by the provided _id.
+     *
+     * This method resolves to/returns the *old* key value (prior to removing the new altKeyName).
+     *
+     * If the removed keyAltName is the last keyAltName for that key, the `altKeyNames` property is unset from the document.
+     *
+     * @param _id - The id of the document to update.
+     * @param keyAltName - a keyAltName to search for a key
+     * @returns Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents
+     * match the id.  The promise rejects with an error if an error is thrown.
+     * @example
+     * ```ts
+     * // removing a key alt name from a data key
+     * const id = new Binary();  // id is a bson binary subtype 4 object
+     * const keyAltName = 'keyAltName';
+     * const oldKey = await clientEncryption.removeKeyAltName(id, keyAltName);
+     *
+     * if (!oldKey) {
+     *  // null is returned if there is no matching document with an id matching the supplied id
+     * }
+     * ```
+     */
+    async removeKeyAltName(_id, keyAltName) {
+        const { db: dbName, collection: collectionName } = utils_1.MongoDBCollectionNamespace.fromString(this._keyVaultNamespace);
+        const pipeline = [
+            {
+                $set: {
+                    keyAltNames: {
+                        $cond: [
+                            {
+                                $eq: ['$keyAltNames', [keyAltName]]
+                            },
+                            '$$REMOVE',
+                            {
+                                $filter: {
+                                    input: '$keyAltNames',
+                                    cond: {
+                                        $ne: ['$$this', keyAltName]
+                                    }
+                                }
+                            }
+                        ]
+                    }
+                }
+            }
+        ];
+        const value = await this._keyVaultClient
+            .db(dbName)
+            .collection(collectionName)
+            .findOneAndUpdate({ _id }, pipeline, {
+            writeConcern: { w: 'majority' },
+            returnDocument: 'before',
+            timeoutMS: this._timeoutMS
+        });
+        return value;
+    }
+    /**
+     * A convenience method for creating an encrypted collection.
+     * This method will create data keys for any encryptedFields that do not have a `keyId` defined
+     * and then create a new collection with the full set of encryptedFields.
+     *
+     * @param db - A Node.js driver Db object with which to create the collection
+     * @param name - The name of the collection to be created
+     * @param options - Options for createDataKey and for createCollection
+     * @returns created collection and generated encryptedFields
+     * @throws MongoCryptCreateDataKeyError - If part way through the process a createDataKey invocation fails, an error will be rejected that has the partial `encryptedFields` that were created.
+     * @throws MongoCryptCreateEncryptedCollectionError - If creating the collection fails, an error will be rejected that has the entire `encryptedFields` that were created.
+     */
+    async createEncryptedCollection(db, name, options) {
+        const { provider, masterKey, createCollectionOptions: { encryptedFields: { ...encryptedFields }, ...createCollectionOptions } } = options;
+        const timeoutContext = this._timeoutMS != null
+            ? timeout_1.TimeoutContext.create((0, utils_1.resolveTimeoutOptions)(this._client, { timeoutMS: this._timeoutMS }))
+            : undefined;
+        if (Array.isArray(encryptedFields.fields)) {
+            const createDataKeyPromises = encryptedFields.fields.map(async (field) => field == null || typeof field !== 'object' || field.keyId != null
+                ? field
+                : {
+                    ...field,
+                    keyId: await this.createDataKey(provider, {
+                        masterKey,
+                        // clone the timeoutContext
+                        // in order to avoid sharing the same timeout for server selection and connection checkout across different concurrent operations
+                        timeoutContext: timeoutContext?.csotEnabled() ? timeoutContext?.clone() : undefined
+                    })
+                });
+            const createDataKeyResolutions = await Promise.allSettled(createDataKeyPromises);
+            encryptedFields.fields = createDataKeyResolutions.map((resolution, index) => resolution.status === 'fulfilled' ? resolution.value : encryptedFields.fields[index]);
+            const rejection = createDataKeyResolutions.find((result) => result.status === 'rejected');
+            if (rejection != null) {
+                throw new errors_1.MongoCryptCreateDataKeyError(encryptedFields, { cause: rejection.reason });
+            }
+        }
+        try {
+            const collection = await db.createCollection(name, {
+                ...createCollectionOptions,
+                encryptedFields,
+                timeoutMS: timeoutContext?.csotEnabled()
+                    ? timeoutContext?.getRemainingTimeMSOrThrow()
+                    : undefined
+            });
+            return { collection, encryptedFields };
+        }
+        catch (cause) {
+            throw new errors_1.MongoCryptCreateEncryptedCollectionError(encryptedFields, { cause });
+        }
+    }
+    /**
+     * Explicitly encrypt a provided value. Note that either `options.keyId` or `options.keyAltName` must
+     * be specified. Specifying both `options.keyId` and `options.keyAltName` is considered an error.
+     *
+     * @param value - The value that you wish to serialize. Must be of a type that can be serialized into BSON
+     * @param options -
+     * @returns a Promise that either resolves with the encrypted value, or rejects with an error.
+     *
+     * @example
+     * ```ts
+     * // Encryption with async/await api
+     * async function encryptMyData(value) {
+     *   const keyId = await clientEncryption.createDataKey('local');
+     *   return clientEncryption.encrypt(value, { keyId, algorithm: 'AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic' });
+     * }
+     * ```
+     *
+     * @example
+     * ```ts
+     * // Encryption using a keyAltName
+     * async function encryptMyData(value) {
+     *   await clientEncryption.createDataKey('local', { keyAltNames: 'mySpecialKey' });
+     *   return clientEncryption.encrypt(value, { keyAltName: 'mySpecialKey', algorithm: 'AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic' });
+     * }
+     * ```
+     */
+    async encrypt(value, options) {
+        return await this._encrypt(value, false, options);
+    }
+    /**
+     * Encrypts a Match Expression or Aggregate Expression to query a range index.
+     *
+     * Only supported when queryType is "range" and algorithm is "Range".
+     *
+     * @param expression - a BSON document of one of the following forms:
+     *  1. A Match Expression of this form:
+     *      `{$and: [{<field>: {$gt: <value1>}}, {<field>: {$lt: <value2> }}]}`
+     *  2. An Aggregate Expression of this form:
+     *      `{$and: [{$gt: [<fieldpath>, <value1>]}, {$lt: [<fieldpath>, <value2>]}]}`
+     *
+     *    `$gt` may also be `$gte`. `$lt` may also be `$lte`.
+     *
+     * @param options -
+     * @returns Returns a Promise that either resolves with the encrypted value or rejects with an error.
+     */
+    async encryptExpression(expression, options) {
+        return await this._encrypt(expression, true, options);
+    }
+    /**
+     * Explicitly decrypt a provided encrypted value
+     *
+     * @param value - An encrypted value
+     * @returns a Promise that either resolves with the decrypted value, or rejects with an error
+     *
+     * @example
+     * ```ts
+     * // Decrypting value with async/await API
+     * async function decryptMyValue(value) {
+     *   return clientEncryption.decrypt(value);
+     * }
+     * ```
+     */
+    async decrypt(value) {
+        const valueBuffer = (0, bson_1.serialize)({ v: value });
+        const context = this._mongoCrypt.makeExplicitDecryptionContext(valueBuffer);
+        const stateMachine = new state_machine_1.StateMachine({
+            proxyOptions: this._proxyOptions,
+            tlsOptions: this._tlsOptions,
+            socketOptions: autoSelectSocketOptions(this._client.s.options)
+        });
+        const timeoutContext = this._timeoutMS != null
+            ? timeout_1.TimeoutContext.create((0, utils_1.resolveTimeoutOptions)(this._client, { timeoutMS: this._timeoutMS }))
+            : undefined;
+        const { v } = (0, bson_1.deserialize)(await stateMachine.execute(this, context, timeoutContext));
+        return v;
+    }
+    /**
+     * @internal
+     * Ask the user for KMS credentials.
+     *
+     * This returns anything that looks like the kmsProviders original input
+     * option. It can be empty, and any provider specified here will override
+     * the original ones.
+     */
+    async askForKMSCredentials() {
+        return await (0, index_1.refreshKMSCredentials)(this._kmsProviders);
+    }
+    static get libmongocryptVersion() {
+        return ClientEncryption.getMongoCrypt().libmongocryptVersion;
+    }
+    /**
+     * @internal
+     * A helper that perform explicit encryption of values and expressions.
+     * Explicitly encrypt a provided value. Note that either `options.keyId` or `options.keyAltName` must
+     * be specified. Specifying both `options.keyId` and `options.keyAltName` is considered an error.
+     *
+     * @param value - The value that you wish to encrypt. Must be of a type that can be serialized into BSON
+     * @param expressionMode - a boolean that indicates whether or not to encrypt the value as an expression
+     * @param options - options to pass to encrypt
+     * @returns the raw result of the call to stateMachine.execute().  When expressionMode is set to true, the return
+     *          value will be a bson document.  When false, the value will be a BSON Binary.
+     *
+     */
+    async _encrypt(value, expressionMode, options) {
+        const { algorithm, keyId, keyAltName, contentionFactor, queryType, rangeOptions } = options;
+        const contextOptions = {
+            expressionMode,
+            algorithm
+        };
+        if (keyId) {
+            contextOptions.keyId = keyId.buffer;
+        }
+        if (keyAltName) {
+            if (keyId) {
+                throw new errors_1.MongoCryptInvalidArgumentError(`"options" cannot contain both "keyId" and "keyAltName"`);
+            }
+            if (typeof keyAltName !== 'string') {
+                throw new errors_1.MongoCryptInvalidArgumentError(`"options.keyAltName" must be of type string, but was of type ${typeof keyAltName}`);
+            }
+            contextOptions.keyAltName = (0, bson_1.serialize)({ keyAltName });
+        }
+        if (typeof contentionFactor === 'number' || typeof contentionFactor === 'bigint') {
+            contextOptions.contentionFactor = contentionFactor;
+        }
+        if (typeof queryType === 'string') {
+            contextOptions.queryType = queryType;
+        }
+        if (typeof rangeOptions === 'object') {
+            contextOptions.rangeOptions = (0, bson_1.serialize)(rangeOptions);
+        }
+        const valueBuffer = (0, bson_1.serialize)({ v: value });
+        const stateMachine = new state_machine_1.StateMachine({
+            proxyOptions: this._proxyOptions,
+            tlsOptions: this._tlsOptions,
+            socketOptions: autoSelectSocketOptions(this._client.s.options)
+        });
+        const context = this._mongoCrypt.makeExplicitEncryptionContext(valueBuffer, contextOptions);
+        const timeoutContext = this._timeoutMS != null
+            ? timeout_1.TimeoutContext.create((0, utils_1.resolveTimeoutOptions)(this._client, { timeoutMS: this._timeoutMS }))
+            : undefined;
+        const { v } = (0, bson_1.deserialize)(await stateMachine.execute(this, context, timeoutContext));
+        return v;
+    }
+}
+exports.ClientEncryption = ClientEncryption;
+/**
+ * Get the socket options from the client.
+ * @param baseOptions - The mongo client options.
+ * @returns ClientEncryptionSocketOptions
+ */
+function autoSelectSocketOptions(baseOptions) {
+    const options = { autoSelectFamily: true };
+    if ('autoSelectFamily' in baseOptions) {
+        options.autoSelectFamily = baseOptions.autoSelectFamily;
+    }
+    if ('autoSelectFamilyAttemptTimeout' in baseOptions) {
+        options.autoSelectFamilyAttemptTimeout = baseOptions.autoSelectFamilyAttemptTimeout;
+    }
+    return options;
+}
+//# sourceMappingURL=client_encryption.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/client-side-encryption/client_encryption.js.map b/backend/node_modules/mongodb/lib/client-side-encryption/client_encryption.js.map
new file mode 100644
index 0000000..88807e0
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/client-side-encryption/client_encryption.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/client-side-encryption/crypto_callbacks.js b/backend/node_modules/mongodb/lib/client-side-encryption/crypto_callbacks.js
new file mode 100644
index 0000000..d10dbc1
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/client-side-encryption/crypto_callbacks.js
@@ -0,0 +1,81 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.hmacSha256Hook = exports.hmacSha512Hook = exports.aes256CtrDecryptHook = exports.aes256CtrEncryptHook = exports.aes256CbcDecryptHook = exports.aes256CbcEncryptHook = void 0;
+exports.makeAES256Hook = makeAES256Hook;
+exports.randomHook = randomHook;
+exports.sha256Hook = sha256Hook;
+exports.makeHmacHook = makeHmacHook;
+exports.signRsaSha256Hook = signRsaSha256Hook;
+const crypto = require("crypto");
+function makeAES256Hook(method, mode) {
+    return function (key, iv, input, output) {
+        let result;
+        try {
+            const cipher = crypto[method](mode, key, iv);
+            cipher.setAutoPadding(false);
+            result = cipher.update(input);
+            const final = cipher.final();
+            if (final.length > 0) {
+                result = Buffer.concat([result, final]);
+            }
+        }
+        catch (e) {
+            return e;
+        }
+        result.copy(output);
+        return result.length;
+    };
+}
+function randomHook(buffer, count) {
+    try {
+        crypto.randomFillSync(buffer, 0, count);
+    }
+    catch (e) {
+        return e;
+    }
+    return count;
+}
+function sha256Hook(input, output) {
+    let result;
+    try {
+        result = crypto.createHash('sha256').update(input).digest();
+    }
+    catch (e) {
+        return e;
+    }
+    result.copy(output);
+    return result.length;
+}
+function makeHmacHook(algorithm) {
+    return (key, input, output) => {
+        let result;
+        try {
+            result = crypto.createHmac(algorithm, key).update(input).digest();
+        }
+        catch (e) {
+            return e;
+        }
+        result.copy(output);
+        return result.length;
+    };
+}
+function signRsaSha256Hook(key, input, output) {
+    let result;
+    try {
+        const signer = crypto.createSign('sha256WithRSAEncryption');
+        const privateKey = Buffer.from(`-----BEGIN PRIVATE KEY-----\n${key.toString('base64')}\n-----END PRIVATE KEY-----\n`);
+        result = signer.update(input).end().sign(privateKey);
+    }
+    catch (e) {
+        return e;
+    }
+    result.copy(output);
+    return result.length;
+}
+exports.aes256CbcEncryptHook = makeAES256Hook('createCipheriv', 'aes-256-cbc');
+exports.aes256CbcDecryptHook = makeAES256Hook('createDecipheriv', 'aes-256-cbc');
+exports.aes256CtrEncryptHook = makeAES256Hook('createCipheriv', 'aes-256-ctr');
+exports.aes256CtrDecryptHook = makeAES256Hook('createDecipheriv', 'aes-256-ctr');
+exports.hmacSha512Hook = makeHmacHook('sha512');
+exports.hmacSha256Hook = makeHmacHook('sha256');
+//# sourceMappingURL=crypto_callbacks.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/client-side-encryption/crypto_callbacks.js.map b/backend/node_modules/mongodb/lib/client-side-encryption/crypto_callbacks.js.map
new file mode 100644
index 0000000..cf2901a
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/client-side-encryption/crypto_callbacks.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"crypto_callbacks.js","sourceRoot":"","sources":["../../src/client-side-encryption/crypto_callbacks.ts"],"names":[],"mappings":";;;AAIA,wCAsBC;AAED,gCAOC;AAED,gCAUC;AAGD,oCAYC;AAED,8CAeC;AA/ED,iCAAiC;AAIjC,SAAgB,cAAc,CAC5B,MAA6C,EAC7C,IAAmC;IAEnC,OAAO,UAAU,GAAW,EAAE,EAAU,EAAE,KAAa,EAAE,MAAc;QACrE,IAAI,MAAM,CAAC;QAEX,IAAI,CAAC;YACH,MAAM,MAAM,GAAG,MAAM,CAAC,MAAM,CAAC,CAAC,IAAI,EAAE,GAAG,EAAE,EAAE,CAAC,CAAC;YAC7C,MAAM,CAAC,cAAc,CAAC,KAAK,CAAC,CAAC;YAC7B,MAAM,GAAG,MAAM,CAAC,MAAM,CAAC,KAAK,CAAC,CAAC;YAC9B,MAAM,KAAK,GAAG,MAAM,CAAC,KAAK,EAAE,CAAC;YAC7B,IAAI,KAAK,CAAC,MAAM,GAAG,CAAC,EAAE,CAAC;gBACrB,MAAM,GAAG,MAAM,CAAC,MAAM,CAAC,CAAC,MAAM,EAAE,KAAK,CAAC,CAAC,CAAC;YAC1C,CAAC;QACH,CAAC;QAAC,OAAO,CAAC,EAAE,CAAC;YACX,OAAO,CAAC,CAAC;QACX,CAAC;QAED,MAAM,CAAC,IAAI,CAAC,MAAM,CAAC,CAAC;QACpB,OAAO,MAAM,CAAC,MAAM,CAAC;IACvB,CAAC,CAAC;AACJ,CAAC;AAED,SAAgB,UAAU,CAAC,MAAc,EAAE,KAAa;IACtD,IAAI,CAAC;QACH,MAAM,CAAC,cAAc,CAAC,MAAM,EAAE,CAAC,EAAE,KAAK,CAAC,CAAC;IAC1C,CAAC;IAAC,OAAO,CAAC,EAAE,CAAC;QACX,OAAO,CAAC,CAAC;IACX,CAAC;IACD,OAAO,KAAK,CAAC;AACf,CAAC;AAED,SAAgB,UAAU,CAAC,KAAa,EAAE,MAAc;IACtD,IAAI,MAAM,CAAC;IACX,IAAI,CAAC;QACH,MAAM,GAAG,MAAM,CAAC,UAAU,CAAC,QAAQ,CAAC,CAAC,MAAM,CAAC,KAAK,CAAC,CAAC,MAAM,EAAE,CAAC;IAC9D,CAAC;IAAC,OAAO,CAAC,EAAE,CAAC;QACX,OAAO,CAAC,CAAC;IACX,CAAC;IAED,MAAM,CAAC,IAAI,CAAC,MAAM,CAAC,CAAC;IACpB,OAAO,MAAM,CAAC,MAAM,CAAC;AACvB,CAAC;AAGD,SAAgB,YAAY,CAAC,SAA8B;IACzD,OAAO,CAAC,GAAW,EAAE,KAAa,EAAE,MAAc,EAAkB,EAAE;QACpE,IAAI,MAAM,CAAC;QACX,IAAI,CAAC;YACH,MAAM,GAAG,MAAM,CAAC,UAAU,CAAC,SAAS,EAAE,GAAG,CAAC,CAAC,MAAM,CAAC,KAAK,CAAC,CAAC,MAAM,EAAE,CAAC;QACpE,CAAC;QAAC,OAAO,CAAC,EAAE,CAAC;YACX,OAAO,CAAC,CAAC;QACX,CAAC;QAED,MAAM,CAAC,IAAI,CAAC,MAAM,CAAC,CAAC;QACpB,OAAO,MAAM,CAAC,MAAM,CAAC;IACvB,CAAC,CAAC;AACJ,CAAC;AAED,SAAgB,iBAAiB,CAAC,GAAW,EAAE,KAAa,EAAE,MAAc;IAC1E,IAAI,MAAM,CAAC;IACX,IAAI,CAAC;QACH,MAAM,MAAM,GAAG,MAAM,CAAC,UAAU,CAAC,yBAAyB,CAAC,CAAC;QAC5D,MAAM,UAAU,GAAG,MAAM,CAAC,IAAI,CAC5B,gCAAgC,GAAG,CAAC,QAAQ,CAAC,QAAQ,CAAC,+BAA+B,CACtF,CAAC;QAEF,MAAM,GAAG,MAAM,CAAC,MAAM,CAAC,KAAK,CAAC,CAAC,GAAG,EAAE,CAAC,IAAI,CAAC,UAAU,CAAC,CAAC;IACvD,CAAC;IAAC,OAAO,CAAC,EAAE,CAAC;QACX,OAAO,CAAC,CAAC;IACX,CAAC;IAED,MAAM,CAAC,IAAI,CAAC,MAAM,CAAC,CAAC;IACpB,OAAO,MAAM,CAAC,MAAM,CAAC;AACvB,CAAC;AAEY,QAAA,oBAAoB,GAAG,cAAc,CAAC,gBAAgB,EAAE,aAAa,CAAC,CAAC;AACvE,QAAA,oBAAoB,GAAG,cAAc,CAAC,kBAAkB,EAAE,aAAa,CAAC,CAAC;AACzE,QAAA,oBAAoB,GAAG,cAAc,CAAC,gBAAgB,EAAE,aAAa,CAAC,CAAC;AACvE,QAAA,oBAAoB,GAAG,cAAc,CAAC,kBAAkB,EAAE,aAAa,CAAC,CAAC;AACzE,QAAA,cAAc,GAAG,YAAY,CAAC,QAAQ,CAAC,CAAC;AACxC,QAAA,cAAc,GAAG,YAAY,CAAC,QAAQ,CAAC,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/client-side-encryption/errors.js b/backend/node_modules/mongodb/lib/client-side-encryption/errors.js
new file mode 100644
index 0000000..5d91e11
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/client-side-encryption/errors.js
@@ -0,0 +1,136 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.MongoCryptKMSRequestNetworkTimeoutError = exports.MongoCryptAzureKMSRequestError = exports.MongoCryptCreateEncryptedCollectionError = exports.MongoCryptCreateDataKeyError = exports.MongoCryptInvalidArgumentError = exports.MongoCryptError = void 0;
+const error_1 = require("../error");
+/**
+ * @public
+ * An error indicating that something went wrong specifically with MongoDB Client Encryption
+ */
+class MongoCryptError extends error_1.MongoError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message, options = {}) {
+        super(message, options);
+    }
+    get name() {
+        return 'MongoCryptError';
+    }
+}
+exports.MongoCryptError = MongoCryptError;
+/**
+ * @public
+ *
+ * An error indicating an invalid argument was provided to an encryption API.
+ */
+class MongoCryptInvalidArgumentError extends MongoCryptError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message) {
+        super(message);
+    }
+    get name() {
+        return 'MongoCryptInvalidArgumentError';
+    }
+}
+exports.MongoCryptInvalidArgumentError = MongoCryptInvalidArgumentError;
+/**
+ * @public
+ * An error indicating that `ClientEncryption.createEncryptedCollection()` failed to create data keys
+ */
+class MongoCryptCreateDataKeyError extends MongoCryptError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(encryptedFields, { cause }) {
+        super(`Unable to complete creating data keys: ${cause.message}`, { cause });
+        this.encryptedFields = encryptedFields;
+    }
+    get name() {
+        return 'MongoCryptCreateDataKeyError';
+    }
+}
+exports.MongoCryptCreateDataKeyError = MongoCryptCreateDataKeyError;
+/**
+ * @public
+ * An error indicating that `ClientEncryption.createEncryptedCollection()` failed to create a collection
+ */
+class MongoCryptCreateEncryptedCollectionError extends MongoCryptError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(encryptedFields, { cause }) {
+        super(`Unable to create collection: ${cause.message}`, { cause });
+        this.encryptedFields = encryptedFields;
+    }
+    get name() {
+        return 'MongoCryptCreateEncryptedCollectionError';
+    }
+}
+exports.MongoCryptCreateEncryptedCollectionError = MongoCryptCreateEncryptedCollectionError;
+/**
+ * @public
+ * An error indicating that mongodb-client-encryption failed to auto-refresh Azure KMS credentials.
+ */
+class MongoCryptAzureKMSRequestError extends MongoCryptError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message, body) {
+        super(message);
+        this.body = body;
+    }
+    get name() {
+        return 'MongoCryptAzureKMSRequestError';
+    }
+}
+exports.MongoCryptAzureKMSRequestError = MongoCryptAzureKMSRequestError;
+/** @public */
+class MongoCryptKMSRequestNetworkTimeoutError extends MongoCryptError {
+    get name() {
+        return 'MongoCryptKMSRequestNetworkTimeoutError';
+    }
+}
+exports.MongoCryptKMSRequestNetworkTimeoutError = MongoCryptKMSRequestNetworkTimeoutError;
+//# sourceMappingURL=errors.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/client-side-encryption/errors.js.map b/backend/node_modules/mongodb/lib/client-side-encryption/errors.js.map
new file mode 100644
index 0000000..4576ba2
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/client-side-encryption/errors.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"errors.js","sourceRoot":"","sources":["../../src/client-side-encryption/errors.ts"],"names":[],"mappings":";;;AACA,oCAAsC;AAEtC;;;GAGG;AACH,MAAa,eAAgB,SAAQ,kBAAU;IAC7C;;;;;;;;;;QAUI;IACJ,YAAY,OAAe,EAAE,UAA6B,EAAE;QAC1D,KAAK,CAAC,OAAO,EAAE,OAAO,CAAC,CAAC;IAC1B,CAAC;IAED,IAAa,IAAI;QACf,OAAO,iBAAiB,CAAC;IAC3B,CAAC;CACF;AAnBD,0CAmBC;AAED;;;;GAIG;AACH,MAAa,8BAA+B,SAAQ,eAAe;IACjE;;;;;;;;;;QAUI;IACJ,YAAY,OAAe;QACzB,KAAK,CAAC,OAAO,CAAC,CAAC;IACjB,CAAC;IAED,IAAa,IAAI;QACf,OAAO,gCAAgC,CAAC;IAC1C,CAAC;CACF;AAnBD,wEAmBC;AACD;;;GAGG;AACH,MAAa,4BAA6B,SAAQ,eAAe;IAE/D;;;;;;;;;;QAUI;IACJ,YAAY,eAAyB,EAAE,EAAE,KAAK,EAAoB;QAChE,KAAK,CAAC,0CAA0C,KAAK,CAAC,OAAO,EAAE,EAAE,EAAE,KAAK,EAAE,CAAC,CAAC;QAC5E,IAAI,CAAC,eAAe,GAAG,eAAe,CAAC;IACzC,CAAC;IAED,IAAa,IAAI;QACf,OAAO,8BAA8B,CAAC;IACxC,CAAC;CACF;AArBD,oEAqBC;AAED;;;GAGG;AACH,MAAa,wCAAyC,SAAQ,eAAe;IAE3E;;;;;;;;;;QAUI;IACJ,YAAY,eAAyB,EAAE,EAAE,KAAK,EAAoB;QAChE,KAAK,CAAC,gCAAgC,KAAK,CAAC,OAAO,EAAE,EAAE,EAAE,KAAK,EAAE,CAAC,CAAC;QAClE,IAAI,CAAC,eAAe,GAAG,eAAe,CAAC;IACzC,CAAC;IAED,IAAa,IAAI;QACf,OAAO,0CAA0C,CAAC;IACpD,CAAC;CACF;AArBD,4FAqBC;AAED;;;GAGG;AACH,MAAa,8BAA+B,SAAQ,eAAe;IAGjE;;;;;;;;;;QAUI;IACJ,YAAY,OAAe,EAAE,IAAe;QAC1C,KAAK,CAAC,OAAO,CAAC,CAAC;QACf,IAAI,CAAC,IAAI,GAAG,IAAI,CAAC;IACnB,CAAC;IAED,IAAa,IAAI;QACf,OAAO,gCAAgC,CAAC;IAC1C,CAAC;CACF;AAtBD,wEAsBC;AAED,cAAc;AACd,MAAa,uCAAwC,SAAQ,eAAe;IAC1E,IAAa,IAAI;QACf,OAAO,yCAAyC,CAAC;IACnD,CAAC;CACF;AAJD,0FAIC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/client-side-encryption/mongocryptd_manager.js b/backend/node_modules/mongodb/lib/client-side-encryption/mongocryptd_manager.js
new file mode 100644
index 0000000..0a64c74
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/client-side-encryption/mongocryptd_manager.js
@@ -0,0 +1,85 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.MongocryptdManager = void 0;
+const error_1 = require("../error");
+/**
+ * @internal
+ * An internal class that handles spawning a mongocryptd.
+ */
+class MongocryptdManager {
+    constructor(extraOptions = {}) {
+        this.spawnPath = '';
+        this.spawnArgs = [];
+        this.uri =
+            typeof extraOptions.mongocryptdURI === 'string' && extraOptions.mongocryptdURI.length > 0
+                ? extraOptions.mongocryptdURI
+                : MongocryptdManager.DEFAULT_MONGOCRYPTD_URI;
+        this.bypassSpawn = !!extraOptions.mongocryptdBypassSpawn;
+        if (Object.hasOwn(extraOptions, 'mongocryptdSpawnPath') && extraOptions.mongocryptdSpawnPath) {
+            this.spawnPath = extraOptions.mongocryptdSpawnPath;
+        }
+        if (Object.hasOwn(extraOptions, 'mongocryptdSpawnArgs') &&
+            Array.isArray(extraOptions.mongocryptdSpawnArgs)) {
+            this.spawnArgs = this.spawnArgs.concat(extraOptions.mongocryptdSpawnArgs);
+        }
+        if (this.spawnArgs
+            .filter(arg => typeof arg === 'string')
+            .every(arg => arg.indexOf('--idleShutdownTimeoutSecs') < 0)) {
+            this.spawnArgs.push('--idleShutdownTimeoutSecs', '60');
+        }
+    }
+    /**
+     * Will check to see if a mongocryptd is up. If it is not up, it will attempt
+     * to spawn a mongocryptd in a detached process, and then wait for it to be up.
+     */
+    async spawn() {
+        const cmdName = this.spawnPath || 'mongocryptd';
+        // eslint-disable-next-line @typescript-eslint/no-require-imports
+        const { spawn } = require('child_process');
+        // Spawned with stdio: ignore and detached: true
+        // to ensure child can outlive parent.
+        this._child = spawn(cmdName, this.spawnArgs, {
+            stdio: 'ignore',
+            detached: true
+        });
+        this._child.on('error', () => {
+            // From the FLE spec:
+            // "The stdout and stderr of the spawned process MUST not be exposed in the driver
+            // (e.g. redirect to /dev/null). Users can pass the argument --logpath to
+            // extraOptions.mongocryptdSpawnArgs if they need to inspect mongocryptd logs.
+            // If spawning is necessary, the driver MUST spawn mongocryptd whenever server
+            // selection on the MongoClient to mongocryptd fails. If the MongoClient fails to
+            // connect after spawning, the server selection error is propagated to the user."
+            // The AutoEncrypter and MongoCryptdManager should work together to spawn
+            // mongocryptd whenever necessary.  Additionally, the `mongocryptd` intentionally
+            // shuts down after 60s and gets respawned when necessary.  We rely on server
+            // selection timeouts when connecting to the `mongocryptd` to inform users that something
+            // has been configured incorrectly.  For those reasons, we suppress stderr from
+            // the `mongocryptd` process and immediately unref the process.
+        });
+        // unref child to remove handle from event loop
+        this._child.unref();
+    }
+    /**
+     * @returns the result of `fn` or rejects with an error.
+     */
+    async withRespawn(fn) {
+        try {
+            const result = await fn();
+            return result;
+        }
+        catch (err) {
+            // If we are not bypassing spawning, then we should retry once on a MongoTimeoutError (server selection error)
+            const shouldSpawn = err instanceof error_1.MongoNetworkTimeoutError && !this.bypassSpawn;
+            if (!shouldSpawn) {
+                throw err;
+            }
+        }
+        await this.spawn();
+        const result = await fn();
+        return result;
+    }
+}
+exports.MongocryptdManager = MongocryptdManager;
+MongocryptdManager.DEFAULT_MONGOCRYPTD_URI = 'mongodb://localhost:27020';
+//# sourceMappingURL=mongocryptd_manager.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/client-side-encryption/mongocryptd_manager.js.map b/backend/node_modules/mongodb/lib/client-side-encryption/mongocryptd_manager.js.map
new file mode 100644
index 0000000..00b4339
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/client-side-encryption/mongocryptd_manager.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"mongocryptd_manager.js","sourceRoot":"","sources":["../../src/client-side-encryption/mongocryptd_manager.ts"],"names":[],"mappings":";;;AAEA,oCAAoD;AAGpD;;;GAGG;AACH,MAAa,kBAAkB;IAS7B,YAAY,eAA2C,EAAE;QAJzD,cAAS,GAAG,EAAE,CAAC;QACf,cAAS,GAAkB,EAAE,CAAC;QAI5B,IAAI,CAAC,GAAG;YACN,OAAO,YAAY,CAAC,cAAc,KAAK,QAAQ,IAAI,YAAY,CAAC,cAAc,CAAC,MAAM,GAAG,CAAC;gBACvF,CAAC,CAAC,YAAY,CAAC,cAAc;gBAC7B,CAAC,CAAC,kBAAkB,CAAC,uBAAuB,CAAC;QAEjD,IAAI,CAAC,WAAW,GAAG,CAAC,CAAC,YAAY,CAAC,sBAAsB,CAAC;QAEzD,IAAI,MAAM,CAAC,MAAM,CAAC,YAAY,EAAE,sBAAsB,CAAC,IAAI,YAAY,CAAC,oBAAoB,EAAE,CAAC;YAC7F,IAAI,CAAC,SAAS,GAAG,YAAY,CAAC,oBAAoB,CAAC;QACrD,CAAC;QACD,IACE,MAAM,CAAC,MAAM,CAAC,YAAY,EAAE,sBAAsB,CAAC;YACnD,KAAK,CAAC,OAAO,CAAC,YAAY,CAAC,oBAAoB,CAAC,EAChD,CAAC;YACD,IAAI,CAAC,SAAS,GAAG,IAAI,CAAC,SAAS,CAAC,MAAM,CAAC,YAAY,CAAC,oBAAoB,CAAC,CAAC;QAC5E,CAAC;QACD,IACE,IAAI,CAAC,SAAS;aACX,MAAM,CAAC,GAAG,CAAC,EAAE,CAAC,OAAO,GAAG,KAAK,QAAQ,CAAC;aACtC,KAAK,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,CAAC,OAAO,CAAC,2BAA2B,CAAC,GAAG,CAAC,CAAC,EAC7D,CAAC;YACD,IAAI,CAAC,SAAS,CAAC,IAAI,CAAC,2BAA2B,EAAE,IAAI,CAAC,CAAC;QACzD,CAAC;IACH,CAAC;IAED;;;OAGG;IACH,KAAK,CAAC,KAAK;QACT,MAAM,OAAO,GAAG,IAAI,CAAC,SAAS,IAAI,aAAa,CAAC;QAEhD,iEAAiE;QACjE,MAAM,EAAE,KAAK,EAAE,GAAG,OAAO,CAAC,eAAe,CAAmC,CAAC;QAE7E,gDAAgD;QAChD,sCAAsC;QACtC,IAAI,CAAC,MAAM,GAAG,KAAK,CAAC,OAAO,EAAE,IAAI,CAAC,SAAS,EAAE;YAC3C,KAAK,EAAE,QAAQ;YACf,QAAQ,EAAE,IAAI;SACf,CAAC,CAAC;QAEH,IAAI,CAAC,MAAM,CAAC,EAAE,CAAC,OAAO,EAAE,GAAG,EAAE;YAC3B,qBAAqB;YACrB,kFAAkF;YAClF,yEAAyE;YACzE,8EAA8E;YAC9E,8EAA8E;YAC9E,iFAAiF;YACjF,iFAAiF;YACjF,yEAAyE;YACzE,iFAAiF;YACjF,6EAA6E;YAC7E,yFAAyF;YACzF,+EAA+E;YAC/E,+DAA+D;QACjE,CAAC,CAAC,CAAC;QAEH,+CAA+C;QAC/C,IAAI,CAAC,MAAM,CAAC,KAAK,EAAE,CAAC;IACtB,CAAC;IAED;;OAEG;IACH,KAAK,CAAC,WAAW,CAAI,EAAoB;QACvC,IAAI,CAAC;YACH,MAAM,MAAM,GAAG,MAAM,EAAE,EAAE,CAAC;YAC1B,OAAO,MAAM,CAAC;QAChB,CAAC;QAAC,OAAO,GAAG,EAAE,CAAC;YACb,8GAA8G;YAC9G,MAAM,WAAW,GAAG,GAAG,YAAY,gCAAwB,IAAI,CAAC,IAAI,CAAC,WAAW,CAAC;YACjF,IAAI,CAAC,WAAW,EAAE,CAAC;gBACjB,MAAM,GAAG,CAAC;YACZ,CAAC;QACH,CAAC;QACD,MAAM,IAAI,CAAC,KAAK,EAAE,CAAC;QACnB,MAAM,MAAM,GAAG,MAAM,EAAE,EAAE,CAAC;QAC1B,OAAO,MAAM,CAAC;IAChB,CAAC;;AAzFH,gDA0FC;AAzFQ,0CAAuB,GAAG,2BAA2B,AAA9B,CAA+B"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/client-side-encryption/providers/aws.js b/backend/node_modules/mongodb/lib/client-side-encryption/providers/aws.js
new file mode 100644
index 0000000..4831703
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/client-side-encryption/providers/aws.js
@@ -0,0 +1,23 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.loadAWSCredentials = loadAWSCredentials;
+const aws_temporary_credentials_1 = require("../../cmap/auth/aws_temporary_credentials");
+/**
+ * @internal
+ */
+async function loadAWSCredentials(kmsProviders) {
+    const credentialProvider = new aws_temporary_credentials_1.AWSSDKCredentialProvider();
+    // We shouldn't ever receive a response from the AWS SDK that doesn't have a `SecretAccessKey`
+    // or `AccessKeyId`.  However, TS says these fields are optional.  We provide empty strings
+    // and let libmongocrypt error if we're unable to fetch the required keys.
+    const { SecretAccessKey = '', AccessKeyId = '', Token } = await credentialProvider.getCredentials();
+    const aws = {
+        secretAccessKey: SecretAccessKey,
+        accessKeyId: AccessKeyId
+    };
+    // the AWS session token is only required for temporary credentials so only attach it to the
+    // result if it's present in the response from the aws sdk
+    Token != null && (aws.sessionToken = Token);
+    return { ...kmsProviders, aws };
+}
+//# sourceMappingURL=aws.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/client-side-encryption/providers/aws.js.map b/backend/node_modules/mongodb/lib/client-side-encryption/providers/aws.js.map
new file mode 100644
index 0000000..46cedab
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/client-side-encryption/providers/aws.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"aws.js","sourceRoot":"","sources":["../../../src/client-side-encryption/providers/aws.ts"],"names":[],"mappings":";;AAMA,gDAoBC;AA1BD,yFAAqF;AAGrF;;GAEG;AACI,KAAK,UAAU,kBAAkB,CAAC,YAA0B;IACjE,MAAM,kBAAkB,GAAG,IAAI,oDAAwB,EAAE,CAAC;IAE1D,8FAA8F;IAC9F,2FAA2F;IAC3F,0EAA0E;IAC1E,MAAM,EACJ,eAAe,GAAG,EAAE,EACpB,WAAW,GAAG,EAAE,EAChB,KAAK,EACN,GAAG,MAAM,kBAAkB,CAAC,cAAc,EAAE,CAAC;IAC9C,MAAM,GAAG,GAAqC;QAC5C,eAAe,EAAE,eAAe;QAChC,WAAW,EAAE,WAAW;KACzB,CAAC;IACF,4FAA4F;IAC5F,0DAA0D;IAC1D,KAAK,IAAI,IAAI,IAAI,CAAC,GAAG,CAAC,YAAY,GAAG,KAAK,CAAC,CAAC;IAE5C,OAAO,EAAE,GAAG,YAAY,EAAE,GAAG,EAAE,CAAC;AAClC,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/client-side-encryption/providers/azure.js b/backend/node_modules/mongodb/lib/client-side-encryption/providers/azure.js
new file mode 100644
index 0000000..9829f15
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/client-side-encryption/providers/azure.js
@@ -0,0 +1,132 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.tokenCache = exports.AzureCredentialCache = exports.AZURE_BASE_URL = void 0;
+exports.addAzureParams = addAzureParams;
+exports.prepareRequest = prepareRequest;
+exports.fetchAzureKMSToken = fetchAzureKMSToken;
+exports.loadAzureCredentials = loadAzureCredentials;
+const error_1 = require("../../error");
+const utils_1 = require("../../utils");
+const errors_1 = require("../errors");
+const MINIMUM_TOKEN_REFRESH_IN_MILLISECONDS = 6000;
+/** Base URL for getting Azure tokens. */
+exports.AZURE_BASE_URL = 'http://169.254.169.254/metadata/identity/oauth2/token?';
+/**
+ * @internal
+ */
+class AzureCredentialCache {
+    constructor() {
+        this.cachedToken = null;
+    }
+    async getToken() {
+        if (this.cachedToken == null || this.needsRefresh(this.cachedToken)) {
+            this.cachedToken = await this._getToken();
+        }
+        return { accessToken: this.cachedToken.accessToken };
+    }
+    needsRefresh(token) {
+        const timeUntilExpirationMS = token.expiresOnTimestamp - Date.now();
+        return timeUntilExpirationMS <= MINIMUM_TOKEN_REFRESH_IN_MILLISECONDS;
+    }
+    /**
+     * exposed for testing
+     */
+    resetCache() {
+        this.cachedToken = null;
+    }
+    /**
+     * exposed for testing
+     */
+    _getToken() {
+        return fetchAzureKMSToken();
+    }
+}
+exports.AzureCredentialCache = AzureCredentialCache;
+/** @internal */
+exports.tokenCache = new AzureCredentialCache();
+/** @internal */
+async function parseResponse(response) {
+    const { status, body: rawBody } = response;
+    const body = (() => {
+        try {
+            return JSON.parse(rawBody);
+        }
+        catch {
+            throw new errors_1.MongoCryptAzureKMSRequestError('Malformed JSON body in GET request.');
+        }
+    })();
+    if (status !== 200) {
+        throw new errors_1.MongoCryptAzureKMSRequestError('Unable to complete request.', body);
+    }
+    if (!body.access_token) {
+        throw new errors_1.MongoCryptAzureKMSRequestError('Malformed response body - missing field `access_token`.');
+    }
+    if (!body.expires_in) {
+        throw new errors_1.MongoCryptAzureKMSRequestError('Malformed response body - missing field `expires_in`.');
+    }
+    const expiresInMS = Number(body.expires_in) * 1000;
+    if (Number.isNaN(expiresInMS)) {
+        throw new errors_1.MongoCryptAzureKMSRequestError('Malformed response body - unable to parse int from `expires_in` field.');
+    }
+    return {
+        accessToken: body.access_token,
+        expiresOnTimestamp: Date.now() + expiresInMS
+    };
+}
+/**
+ * @internal
+ * Get the Azure endpoint URL.
+ */
+function addAzureParams(url, resource, username) {
+    url.searchParams.append('api-version', '2018-02-01');
+    url.searchParams.append('resource', resource);
+    if (username) {
+        url.searchParams.append('client_id', username);
+    }
+    return url;
+}
+/**
+ * @internal
+ *
+ * parses any options provided by prose tests to `fetchAzureKMSToken` and merges them with
+ * the default values for headers and the request url.
+ */
+function prepareRequest(options) {
+    const url = new URL(options.url?.toString() ?? exports.AZURE_BASE_URL);
+    addAzureParams(url, 'https://vault.azure.net');
+    const headers = { ...options.headers, 'Content-Type': 'application/json', Metadata: true };
+    return { headers, url };
+}
+/**
+ * @internal
+ *
+ * `AzureKMSRequestOptions` allows prose tests to modify the http request sent to the idms
+ * servers.  This is required to simulate different server conditions.  No options are expected to
+ * be set outside of tests.
+ *
+ * exposed for CSFLE
+ * [prose test 18](https://github.com/mongodb/specifications/tree/master/source/client-side-encryption/tests#azure-imds-credentials)
+ */
+async function fetchAzureKMSToken(options = {}) {
+    const { headers, url } = prepareRequest(options);
+    try {
+        const response = await (0, utils_1.get)(url, { headers });
+        return await parseResponse(response);
+    }
+    catch (error) {
+        if (error instanceof error_1.MongoNetworkTimeoutError) {
+            throw new errors_1.MongoCryptAzureKMSRequestError(`[Azure KMS] ${error.message}`);
+        }
+        throw error;
+    }
+}
+/**
+ * @internal
+ *
+ * @throws Will reject with a `MongoCryptError` if the http request fails or the http response is malformed.
+ */
+async function loadAzureCredentials(kmsProviders) {
+    const azure = await exports.tokenCache.getToken();
+    return { ...kmsProviders, azure };
+}
+//# sourceMappingURL=azure.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/client-side-encryption/providers/azure.js.map b/backend/node_modules/mongodb/lib/client-side-encryption/providers/azure.js.map
new file mode 100644
index 0000000..1c55572
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/client-side-encryption/providers/azure.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"azure.js","sourceRoot":"","sources":["../../../src/client-side-encryption/providers/azure.ts"],"names":[],"mappings":";;;AA0HA,wCAOC;AAQD,wCAQC;AAYD,gDAaC;AAOD,oDAGC;AAnLD,uCAAuD;AACvD,uCAAkC;AAClC,sCAA2D;AAG3D,MAAM,qCAAqC,GAAG,IAAI,CAAC;AACnD,yCAAyC;AAC5B,QAAA,cAAc,GAAG,wDAAwD,CAAC;AAkBvF;;GAEG;AACH,MAAa,oBAAoB;IAAjC;QACE,gBAAW,GAAgC,IAAI,CAAC;IA4BlD,CAAC;IA1BC,KAAK,CAAC,QAAQ;QACZ,IAAI,IAAI,CAAC,WAAW,IAAI,IAAI,IAAI,IAAI,CAAC,YAAY,CAAC,IAAI,CAAC,WAAW,CAAC,EAAE,CAAC;YACpE,IAAI,CAAC,WAAW,GAAG,MAAM,IAAI,CAAC,SAAS,EAAE,CAAC;QAC5C,CAAC;QAED,OAAO,EAAE,WAAW,EAAE,IAAI,CAAC,WAAW,CAAC,WAAW,EAAE,CAAC;IACvD,CAAC;IAED,YAAY,CAAC,KAA2B;QACtC,MAAM,qBAAqB,GAAG,KAAK,CAAC,kBAAkB,GAAG,IAAI,CAAC,GAAG,EAAE,CAAC;QACpE,OAAO,qBAAqB,IAAI,qCAAqC,CAAC;IACxE,CAAC;IAED;;OAEG;IACH,UAAU;QACR,IAAI,CAAC,WAAW,GAAG,IAAI,CAAC;IAC1B,CAAC;IAED;;OAEG;IACH,SAAS;QACP,OAAO,kBAAkB,EAAE,CAAC;IAC9B,CAAC;CACF;AA7BD,oDA6BC;AAED,gBAAgB;AACH,QAAA,UAAU,GAAG,IAAI,oBAAoB,EAAE,CAAC;AAErD,gBAAgB;AAChB,KAAK,UAAU,aAAa,CAAC,QAG5B;IACC,MAAM,EAAE,MAAM,EAAE,IAAI,EAAE,OAAO,EAAE,GAAG,QAAQ,CAAC;IAE3C,MAAM,IAAI,GAAmD,CAAC,GAAG,EAAE;QACjE,IAAI,CAAC;YACH,OAAO,IAAI,CAAC,KAAK,CAAC,OAAO,CAAC,CAAC;QAC7B,CAAC;QAAC,MAAM,CAAC;YACP,MAAM,IAAI,uCAA8B,CAAC,qCAAqC,CAAC,CAAC;QAClF,CAAC;IACH,CAAC,CAAC,EAAE,CAAC;IAEL,IAAI,MAAM,KAAK,GAAG,EAAE,CAAC;QACnB,MAAM,IAAI,uCAA8B,CAAC,6BAA6B,EAAE,IAAI,CAAC,CAAC;IAChF,CAAC;IAED,IAAI,CAAC,IAAI,CAAC,YAAY,EAAE,CAAC;QACvB,MAAM,IAAI,uCAA8B,CACtC,yDAAyD,CAC1D,CAAC;IACJ,CAAC;IAED,IAAI,CAAC,IAAI,CAAC,UAAU,EAAE,CAAC;QACrB,MAAM,IAAI,uCAA8B,CACtC,uDAAuD,CACxD,CAAC;IACJ,CAAC;IAED,MAAM,WAAW,GAAG,MAAM,CAAC,IAAI,CAAC,UAAU,CAAC,GAAG,IAAI,CAAC;IACnD,IAAI,MAAM,CAAC,KAAK,CAAC,WAAW,CAAC,EAAE,CAAC;QAC9B,MAAM,IAAI,uCAA8B,CACtC,wEAAwE,CACzE,CAAC;IACJ,CAAC;IAED,OAAO;QACL,WAAW,EAAE,IAAI,CAAC,YAAY;QAC9B,kBAAkB,EAAE,IAAI,CAAC,GAAG,EAAE,GAAG,WAAW;KAC7C,CAAC;AACJ,CAAC;AAaD;;;GAGG;AACH,SAAgB,cAAc,CAAC,GAAQ,EAAE,QAAgB,EAAE,QAAiB;IAC1E,GAAG,CAAC,YAAY,CAAC,MAAM,CAAC,aAAa,EAAE,YAAY,CAAC,CAAC;IACrD,GAAG,CAAC,YAAY,CAAC,MAAM,CAAC,UAAU,EAAE,QAAQ,CAAC,CAAC;IAC9C,IAAI,QAAQ,EAAE,CAAC;QACb,GAAG,CAAC,YAAY,CAAC,MAAM,CAAC,WAAW,EAAE,QAAQ,CAAC,CAAC;IACjD,CAAC;IACD,OAAO,GAAG,CAAC;AACb,CAAC;AAED;;;;;GAKG;AACH,SAAgB,cAAc,CAAC,OAA+B;IAI5D,MAAM,GAAG,GAAG,IAAI,GAAG,CAAC,OAAO,CAAC,GAAG,EAAE,QAAQ,EAAE,IAAI,sBAAc,CAAC,CAAC;IAC/D,cAAc,CAAC,GAAG,EAAE,yBAAyB,CAAC,CAAC;IAC/C,MAAM,OAAO,GAAG,EAAE,GAAG,OAAO,CAAC,OAAO,EAAE,cAAc,EAAE,kBAAkB,EAAE,QAAQ,EAAE,IAAI,EAAE,CAAC;IAC3F,OAAO,EAAE,OAAO,EAAE,GAAG,EAAE,CAAC;AAC1B,CAAC;AAED;;;;;;;;;GASG;AACI,KAAK,UAAU,kBAAkB,CACtC,UAAkC,EAAE;IAEpC,MAAM,EAAE,OAAO,EAAE,GAAG,EAAE,GAAG,cAAc,CAAC,OAAO,CAAC,CAAC;IACjD,IAAI,CAAC;QACH,MAAM,QAAQ,GAAG,MAAM,IAAA,WAAG,EAAC,GAAG,EAAE,EAAE,OAAO,EAAE,CAAC,CAAC;QAC7C,OAAO,MAAM,aAAa,CAAC,QAAQ,CAAC,CAAC;IACvC,CAAC;IAAC,OAAO,KAAK,EAAE,CAAC;QACf,IAAI,KAAK,YAAY,gCAAwB,EAAE,CAAC;YAC9C,MAAM,IAAI,uCAA8B,CAAC,eAAe,KAAK,CAAC,OAAO,EAAE,CAAC,CAAC;QAC3E,CAAC;QACD,MAAM,KAAK,CAAC;IACd,CAAC;AACH,CAAC;AAED;;;;GAIG;AACI,KAAK,UAAU,oBAAoB,CAAC,YAA0B;IACnE,MAAM,KAAK,GAAG,MAAM,kBAAU,CAAC,QAAQ,EAAE,CAAC;IAC1C,OAAO,EAAE,GAAG,YAAY,EAAE,KAAK,EAAE,CAAC;AACpC,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/client-side-encryption/providers/gcp.js b/backend/node_modules/mongodb/lib/client-side-encryption/providers/gcp.js
new file mode 100644
index 0000000..7493adf
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/client-side-encryption/providers/gcp.js
@@ -0,0 +1,16 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.loadGCPCredentials = loadGCPCredentials;
+const deps_1 = require("../../deps");
+/** @internal */
+async function loadGCPCredentials(kmsProviders) {
+    const gcpMetadata = (0, deps_1.getGcpMetadata)();
+    if ('kModuleError' in gcpMetadata) {
+        return kmsProviders;
+    }
+    const { access_token: accessToken } = await gcpMetadata.instance({
+        property: 'service-accounts/default/token'
+    });
+    return { ...kmsProviders, gcp: { accessToken } };
+}
+//# sourceMappingURL=gcp.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/client-side-encryption/providers/gcp.js.map b/backend/node_modules/mongodb/lib/client-side-encryption/providers/gcp.js.map
new file mode 100644
index 0000000..a20cc7d
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/client-side-encryption/providers/gcp.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"gcp.js","sourceRoot":"","sources":["../../../src/client-side-encryption/providers/gcp.ts"],"names":[],"mappings":";;AAIA,gDAWC;AAfD,qCAA4C;AAG5C,gBAAgB;AACT,KAAK,UAAU,kBAAkB,CAAC,YAA0B;IACjE,MAAM,WAAW,GAAG,IAAA,qBAAc,GAAE,CAAC;IAErC,IAAI,cAAc,IAAI,WAAW,EAAE,CAAC;QAClC,OAAO,YAAY,CAAC;IACtB,CAAC;IAED,MAAM,EAAE,YAAY,EAAE,WAAW,EAAE,GAAG,MAAM,WAAW,CAAC,QAAQ,CAA2B;QACzF,QAAQ,EAAE,gCAAgC;KAC3C,CAAC,CAAC;IACH,OAAO,EAAE,GAAG,YAAY,EAAE,GAAG,EAAE,EAAE,WAAW,EAAE,EAAE,CAAC;AACnD,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/client-side-encryption/providers/index.js b/backend/node_modules/mongodb/lib/client-side-encryption/providers/index.js
new file mode 100644
index 0000000..d74d49f
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/client-side-encryption/providers/index.js
@@ -0,0 +1,43 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.isEmptyCredentials = isEmptyCredentials;
+exports.refreshKMSCredentials = refreshKMSCredentials;
+const aws_1 = require("./aws");
+const azure_1 = require("./azure");
+const gcp_1 = require("./gcp");
+/**
+ * Auto credential fetching should only occur when the provider is defined on the kmsProviders map
+ * and the settings are an empty object.
+ *
+ * This is distinct from a nullish provider key.
+ *
+ * @internal - exposed for testing purposes only
+ */
+function isEmptyCredentials(providerName, kmsProviders) {
+    const provider = kmsProviders[providerName];
+    if (provider == null) {
+        return false;
+    }
+    return typeof provider === 'object' && Object.keys(provider).length === 0;
+}
+/**
+ * Load cloud provider credentials for the user provided KMS providers.
+ * Credentials will only attempt to get loaded if they do not exist
+ * and no existing credentials will get overwritten.
+ *
+ * @internal
+ */
+async function refreshKMSCredentials(kmsProviders) {
+    let finalKMSProviders = kmsProviders;
+    if (isEmptyCredentials('aws', kmsProviders)) {
+        finalKMSProviders = await (0, aws_1.loadAWSCredentials)(finalKMSProviders);
+    }
+    if (isEmptyCredentials('gcp', kmsProviders)) {
+        finalKMSProviders = await (0, gcp_1.loadGCPCredentials)(finalKMSProviders);
+    }
+    if (isEmptyCredentials('azure', kmsProviders)) {
+        finalKMSProviders = await (0, azure_1.loadAzureCredentials)(finalKMSProviders);
+    }
+    return finalKMSProviders;
+}
+//# sourceMappingURL=index.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/client-side-encryption/providers/index.js.map b/backend/node_modules/mongodb/lib/client-side-encryption/providers/index.js.map
new file mode 100644
index 0000000..16e6139
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/client-side-encryption/providers/index.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../../src/client-side-encryption/providers/index.ts"],"names":[],"mappings":";;AAgKA,gDASC;AASD,sDAeC;AAhMD,+BAA2C;AAC3C,mCAA+C;AAC/C,+BAA2C;AAqJ3C;;;;;;;GAOG;AACH,SAAgB,kBAAkB,CAChC,YAA6C,EAC7C,YAA0B;IAE1B,MAAM,QAAQ,GAAG,YAAY,CAAC,YAAY,CAAC,CAAC;IAC5C,IAAI,QAAQ,IAAI,IAAI,EAAE,CAAC;QACrB,OAAO,KAAK,CAAC;IACf,CAAC;IACD,OAAO,OAAO,QAAQ,KAAK,QAAQ,IAAI,MAAM,CAAC,IAAI,CAAC,QAAQ,CAAC,CAAC,MAAM,KAAK,CAAC,CAAC;AAC5E,CAAC;AAED;;;;;;GAMG;AACI,KAAK,UAAU,qBAAqB,CAAC,YAA0B;IACpE,IAAI,iBAAiB,GAAG,YAAY,CAAC;IAErC,IAAI,kBAAkB,CAAC,KAAK,EAAE,YAAY,CAAC,EAAE,CAAC;QAC5C,iBAAiB,GAAG,MAAM,IAAA,wBAAkB,EAAC,iBAAiB,CAAC,CAAC;IAClE,CAAC;IAED,IAAI,kBAAkB,CAAC,KAAK,EAAE,YAAY,CAAC,EAAE,CAAC;QAC5C,iBAAiB,GAAG,MAAM,IAAA,wBAAkB,EAAC,iBAAiB,CAAC,CAAC;IAClE,CAAC;IAED,IAAI,kBAAkB,CAAC,OAAO,EAAE,YAAY,CAAC,EAAE,CAAC;QAC9C,iBAAiB,GAAG,MAAM,IAAA,4BAAoB,EAAC,iBAAiB,CAAC,CAAC;IACpE,CAAC;IACD,OAAO,iBAAiB,CAAC;AAC3B,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/client-side-encryption/state_machine.js b/backend/node_modules/mongodb/lib/client-side-encryption/state_machine.js
new file mode 100644
index 0000000..e59aa75
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/client-side-encryption/state_machine.js
@@ -0,0 +1,392 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.StateMachine = void 0;
+const fs = require("fs/promises");
+const net = require("net");
+const tls = require("tls");
+const bson_1 = require("../bson");
+const abstract_cursor_1 = require("../cursor/abstract_cursor");
+const deps_1 = require("../deps");
+const error_1 = require("../error");
+const timeout_1 = require("../timeout");
+const utils_1 = require("../utils");
+const client_encryption_1 = require("./client_encryption");
+const errors_1 = require("./errors");
+let socks = null;
+function loadSocks() {
+    if (socks == null) {
+        const socksImport = (0, deps_1.getSocks)();
+        if ('kModuleError' in socksImport) {
+            throw socksImport.kModuleError;
+        }
+        socks = socksImport;
+    }
+    return socks;
+}
+// libmongocrypt states
+const MONGOCRYPT_CTX_ERROR = 0;
+const MONGOCRYPT_CTX_NEED_MONGO_COLLINFO = 1;
+const MONGOCRYPT_CTX_NEED_MONGO_MARKINGS = 2;
+const MONGOCRYPT_CTX_NEED_MONGO_KEYS = 3;
+const MONGOCRYPT_CTX_NEED_KMS_CREDENTIALS = 7;
+const MONGOCRYPT_CTX_NEED_KMS = 4;
+const MONGOCRYPT_CTX_READY = 5;
+const MONGOCRYPT_CTX_DONE = 6;
+const HTTPS_PORT = 443;
+const stateToString = new Map([
+    [MONGOCRYPT_CTX_ERROR, 'MONGOCRYPT_CTX_ERROR'],
+    [MONGOCRYPT_CTX_NEED_MONGO_COLLINFO, 'MONGOCRYPT_CTX_NEED_MONGO_COLLINFO'],
+    [MONGOCRYPT_CTX_NEED_MONGO_MARKINGS, 'MONGOCRYPT_CTX_NEED_MONGO_MARKINGS'],
+    [MONGOCRYPT_CTX_NEED_MONGO_KEYS, 'MONGOCRYPT_CTX_NEED_MONGO_KEYS'],
+    [MONGOCRYPT_CTX_NEED_KMS_CREDENTIALS, 'MONGOCRYPT_CTX_NEED_KMS_CREDENTIALS'],
+    [MONGOCRYPT_CTX_NEED_KMS, 'MONGOCRYPT_CTX_NEED_KMS'],
+    [MONGOCRYPT_CTX_READY, 'MONGOCRYPT_CTX_READY'],
+    [MONGOCRYPT_CTX_DONE, 'MONGOCRYPT_CTX_DONE']
+]);
+const INSECURE_TLS_OPTIONS = [
+    'tlsInsecure',
+    'tlsAllowInvalidCertificates',
+    'tlsAllowInvalidHostnames',
+    // These options are disallowed by the spec, so we explicitly filter them out if provided, even
+    // though the StateMachine does not declare support for these options.
+    'tlsDisableOCSPEndpointCheck',
+    'tlsDisableCertificateRevocationCheck'
+];
+/**
+ * Helper function for logging. Enabled by setting the environment flag MONGODB_CRYPT_DEBUG.
+ * @param msg - Anything you want to be logged.
+ */
+function debug(msg) {
+    if (process.env.MONGODB_CRYPT_DEBUG) {
+        // eslint-disable-next-line no-console
+        console.error(msg);
+    }
+}
+/**
+ * This is kind of a hack.  For `rewrapManyDataKey`, we have tests that
+ * guarantee that when there are no matching keys, `rewrapManyDataKey` returns
+ * nothing.  We also have tests for auto encryption that guarantee for `encrypt`
+ * we return an error when there are no matching keys.  This error is generated in
+ * subsequent iterations of the state machine.
+ * Some apis (`encrypt`) throw if there are no filter matches and others (`rewrapManyDataKey`)
+ * do not.  We set the result manually here, and let the state machine continue.  `libmongocrypt`
+ * will inform us if we need to error by setting the state to `MONGOCRYPT_CTX_ERROR` but
+ * otherwise we'll return `{ v: [] }`.
+ */
+let EMPTY_V;
+/**
+ * @internal
+ * An internal class that executes across a MongoCryptContext until either
+ * a finishing state or an error is reached. Do not instantiate directly.
+ */
+// TODO(DRIVERS-2671): clarify CSOT behavior for FLE APIs
+class StateMachine {
+    constructor(options, bsonOptions = (0, bson_1.pluckBSONSerializeOptions)(options)) {
+        this.options = options;
+        this.bsonOptions = bsonOptions;
+    }
+    /**
+     * Executes the state machine according to the specification
+     */
+    async execute(executor, context, timeoutContext) {
+        const keyVaultNamespace = executor._keyVaultNamespace;
+        const keyVaultClient = executor._keyVaultClient;
+        const metaDataClient = executor._metaDataClient;
+        const mongocryptdClient = executor._mongocryptdClient;
+        const mongocryptdManager = executor._mongocryptdManager;
+        let result = null;
+        while (context.state !== MONGOCRYPT_CTX_DONE && context.state !== MONGOCRYPT_CTX_ERROR) {
+            debug(`[context#${context.id}] ${stateToString.get(context.state) || context.state}`);
+            switch (context.state) {
+                case MONGOCRYPT_CTX_NEED_MONGO_COLLINFO: {
+                    const filter = (0, bson_1.deserialize)(context.nextMongoOperation());
+                    if (!metaDataClient) {
+                        throw new errors_1.MongoCryptError('unreachable state machine state: entered MONGOCRYPT_CTX_NEED_MONGO_COLLINFO but metadata client is undefined');
+                    }
+                    const collInfo = await this.fetchCollectionInfo(metaDataClient, context.ns, filter, timeoutContext);
+                    if (collInfo) {
+                        context.addMongoOperationResponse(collInfo);
+                    }
+                    context.finishMongoOperation();
+                    break;
+                }
+                case MONGOCRYPT_CTX_NEED_MONGO_MARKINGS: {
+                    const command = context.nextMongoOperation();
+                    if (!mongocryptdClient) {
+                        throw new errors_1.MongoCryptError('unreachable state machine state: entered MONGOCRYPT_CTX_NEED_MONGO_MARKINGS but mongocryptdClient is undefined');
+                    }
+                    // When we are using the shared library, we don't have a mongocryptd manager.
+                    const markedCommand = mongocryptdManager
+                        ? await mongocryptdManager.withRespawn(this.markCommand.bind(this, mongocryptdClient, context.ns, command, timeoutContext))
+                        : await this.markCommand(mongocryptdClient, context.ns, command, timeoutContext);
+                    context.addMongoOperationResponse(markedCommand);
+                    context.finishMongoOperation();
+                    break;
+                }
+                case MONGOCRYPT_CTX_NEED_MONGO_KEYS: {
+                    const filter = context.nextMongoOperation();
+                    const keys = await this.fetchKeys(keyVaultClient, keyVaultNamespace, filter, timeoutContext);
+                    if (keys.length === 0) {
+                        // See docs on EMPTY_V
+                        result = EMPTY_V ??= (0, bson_1.serialize)({ v: [] });
+                    }
+                    for await (const key of keys) {
+                        context.addMongoOperationResponse((0, bson_1.serialize)(key));
+                    }
+                    context.finishMongoOperation();
+                    break;
+                }
+                case MONGOCRYPT_CTX_NEED_KMS_CREDENTIALS: {
+                    const kmsProviders = await executor.askForKMSCredentials();
+                    context.provideKMSProviders((0, bson_1.serialize)(kmsProviders));
+                    break;
+                }
+                case MONGOCRYPT_CTX_NEED_KMS: {
+                    await Promise.all(this.requests(context, timeoutContext));
+                    context.finishKMSRequests();
+                    break;
+                }
+                case MONGOCRYPT_CTX_READY: {
+                    const finalizedContext = context.finalize();
+                    // @ts-expect-error finalize can change the state, check for error
+                    if (context.state === MONGOCRYPT_CTX_ERROR) {
+                        const message = context.status.message || 'Finalization error';
+                        throw new errors_1.MongoCryptError(message);
+                    }
+                    result = finalizedContext;
+                    break;
+                }
+                default:
+                    throw new errors_1.MongoCryptError(`Unknown state: ${context.state}`);
+            }
+        }
+        if (context.state === MONGOCRYPT_CTX_ERROR || result == null) {
+            const message = context.status.message;
+            if (!message) {
+                debug(`unidentifiable error in MongoCrypt - received an error status from \`libmongocrypt\` but received no error message.`);
+            }
+            throw new errors_1.MongoCryptError(message ??
+                'unidentifiable error in MongoCrypt - received an error status from `libmongocrypt` but received no error message.');
+        }
+        return result;
+    }
+    /**
+     * Handles the request to the KMS service. Exposed for testing purposes. Do not directly invoke.
+     * @param kmsContext - A C++ KMS context returned from the bindings
+     * @returns A promise that resolves when the KMS reply has be fully parsed
+     */
+    async kmsRequest(request, timeoutContext) {
+        const parsedUrl = request.endpoint.split(':');
+        const port = parsedUrl[1] != null ? Number.parseInt(parsedUrl[1], 10) : HTTPS_PORT;
+        const socketOptions = (0, client_encryption_1.autoSelectSocketOptions)(this.options.socketOptions || {});
+        const options = {
+            host: parsedUrl[0],
+            servername: parsedUrl[0],
+            port,
+            ...socketOptions
+        };
+        const message = request.message;
+        const buffer = new utils_1.BufferPool();
+        const netSocket = new net.Socket();
+        let socket;
+        function destroySockets() {
+            for (const sock of [socket, netSocket]) {
+                if (sock) {
+                    sock.removeAllListeners();
+                    sock.destroy();
+                }
+            }
+        }
+        function onerror(cause) {
+            return new errors_1.MongoCryptError('KMS request failed', { cause });
+        }
+        function onclose() {
+            return new errors_1.MongoCryptError('KMS request closed');
+        }
+        const tlsOptions = this.options.tlsOptions;
+        if (tlsOptions) {
+            const kmsProvider = request.kmsProvider;
+            const providerTlsOptions = tlsOptions[kmsProvider];
+            if (providerTlsOptions) {
+                const error = this.validateTlsOptions(kmsProvider, providerTlsOptions);
+                if (error) {
+                    throw error;
+                }
+                try {
+                    await this.setTlsOptions(providerTlsOptions, options);
+                }
+                catch (err) {
+                    throw onerror(err);
+                }
+            }
+        }
+        const { promise: willConnect, reject: rejectOnNetSocketError, resolve: resolveOnNetSocketConnect } = (0, utils_1.promiseWithResolvers)();
+        netSocket
+            .once('error', err => rejectOnNetSocketError(onerror(err)))
+            .once('close', () => rejectOnNetSocketError(onclose()))
+            .once('connect', () => resolveOnNetSocketConnect());
+        try {
+            if (this.options.proxyOptions && this.options.proxyOptions.proxyHost) {
+                const netSocketOptions = {
+                    host: this.options.proxyOptions.proxyHost,
+                    port: this.options.proxyOptions.proxyPort || 1080,
+                    ...socketOptions
+                };
+                netSocket.connect(netSocketOptions);
+                await willConnect;
+                try {
+                    socks ??= loadSocks();
+                    options.socket = (await socks.SocksClient.createConnection({
+                        existing_socket: netSocket,
+                        command: 'connect',
+                        destination: { host: options.host, port: options.port },
+                        proxy: {
+                            // host and port are ignored because we pass existing_socket
+                            host: 'iLoveJavaScript',
+                            port: 0,
+                            type: 5,
+                            userId: this.options.proxyOptions.proxyUsername,
+                            password: this.options.proxyOptions.proxyPassword
+                        }
+                    })).socket;
+                }
+                catch (err) {
+                    throw onerror(err);
+                }
+            }
+            socket = tls.connect(options, () => {
+                socket.write(message);
+            });
+            const { promise: willResolveKmsRequest, reject: rejectOnTlsSocketError, resolve } = (0, utils_1.promiseWithResolvers)();
+            socket
+                .once('error', err => rejectOnTlsSocketError(onerror(err)))
+                .once('close', () => rejectOnTlsSocketError(onclose()))
+                .on('data', data => {
+                buffer.append(data);
+                while (request.bytesNeeded > 0 && buffer.length) {
+                    const bytesNeeded = Math.min(request.bytesNeeded, buffer.length);
+                    request.addResponse(buffer.read(bytesNeeded));
+                }
+                if (request.bytesNeeded <= 0) {
+                    resolve();
+                }
+            });
+            await (timeoutContext?.csotEnabled()
+                ? Promise.all([willResolveKmsRequest, timeout_1.Timeout.expires(timeoutContext?.remainingTimeMS)])
+                : willResolveKmsRequest);
+        }
+        catch (error) {
+            if (error instanceof timeout_1.TimeoutError)
+                throw new error_1.MongoOperationTimeoutError('KMS request timed out');
+            throw error;
+        }
+        finally {
+            // There's no need for any more activity on this socket at this point.
+            destroySockets();
+        }
+    }
+    *requests(context, timeoutContext) {
+        for (let request = context.nextKMSRequest(); request != null; request = context.nextKMSRequest()) {
+            yield this.kmsRequest(request, timeoutContext);
+        }
+    }
+    /**
+     * Validates the provided TLS options are secure.
+     *
+     * @param kmsProvider - The KMS provider name.
+     * @param tlsOptions - The client TLS options for the provider.
+     *
+     * @returns An error if any option is invalid.
+     */
+    validateTlsOptions(kmsProvider, tlsOptions) {
+        const tlsOptionNames = Object.keys(tlsOptions);
+        for (const option of INSECURE_TLS_OPTIONS) {
+            if (tlsOptionNames.includes(option)) {
+                return new errors_1.MongoCryptError(`Insecure TLS options prohibited for ${kmsProvider}: ${option}`);
+            }
+        }
+    }
+    /**
+     * Sets only the valid secure TLS options.
+     *
+     * @param tlsOptions - The client TLS options for the provider.
+     * @param options - The existing connection options.
+     */
+    async setTlsOptions(tlsOptions, options) {
+        if (tlsOptions.tlsCertificateKeyFile) {
+            const cert = await fs.readFile(tlsOptions.tlsCertificateKeyFile);
+            options.cert = options.key = cert;
+        }
+        if (tlsOptions.tlsCAFile) {
+            options.ca = await fs.readFile(tlsOptions.tlsCAFile);
+        }
+        if (tlsOptions.tlsCertificateKeyFilePassword) {
+            options.passphrase = tlsOptions.tlsCertificateKeyFilePassword;
+        }
+    }
+    /**
+     * Fetches collection info for a provided namespace, when libmongocrypt
+     * enters the `MONGOCRYPT_CTX_NEED_MONGO_COLLINFO` state. The result is
+     * used to inform libmongocrypt of the schema associated with this
+     * namespace. Exposed for testing purposes. Do not directly invoke.
+     *
+     * @param client - A MongoClient connected to the topology
+     * @param ns - The namespace to list collections from
+     * @param filter - A filter for the listCollections command
+     * @param callback - Invoked with the info of the requested collection, or with an error
+     */
+    async fetchCollectionInfo(client, ns, filter, timeoutContext) {
+        const { db } = utils_1.MongoDBCollectionNamespace.fromString(ns);
+        const cursor = client.db(db).listCollections(filter, {
+            promoteLongs: false,
+            promoteValues: false,
+            timeoutContext: timeoutContext && new abstract_cursor_1.CursorTimeoutContext(timeoutContext, Symbol())
+        });
+        // There is always exactly zero or one matching documents, so this should always exhaust the cursor
+        // in a single batch.  We call `toArray()` just to be safe and ensure that the cursor is always
+        // exhausted and closed.
+        const collections = await cursor.toArray();
+        const info = collections.length > 0 ? (0, bson_1.serialize)(collections[0]) : null;
+        return info;
+    }
+    /**
+     * Calls to the mongocryptd to provide markings for a command.
+     * Exposed for testing purposes. Do not directly invoke.
+     * @param client - A MongoClient connected to a mongocryptd
+     * @param ns - The namespace (database.collection) the command is being executed on
+     * @param command - The command to execute.
+     * @param callback - Invoked with the serialized and marked bson command, or with an error
+     */
+    async markCommand(client, ns, command, timeoutContext) {
+        const { db } = utils_1.MongoDBCollectionNamespace.fromString(ns);
+        const bsonOptions = { promoteLongs: false, promoteValues: false };
+        const rawCommand = (0, bson_1.deserialize)(command, bsonOptions);
+        const response = await client.db(db).command(rawCommand, {
+            ...bsonOptions,
+            ...(timeoutContext?.csotEnabled()
+                ? { timeoutMS: timeoutContext?.remainingTimeMS }
+                : undefined)
+        });
+        return (0, bson_1.serialize)(response, this.bsonOptions);
+    }
+    /**
+     * Requests keys from the keyVault collection on the topology.
+     * Exposed for testing purposes. Do not directly invoke.
+     * @param client - A MongoClient connected to the topology
+     * @param keyVaultNamespace - The namespace (database.collection) of the keyVault Collection
+     * @param filter - The filter for the find query against the keyVault Collection
+     * @param callback - Invoked with the found keys, or with an error
+     */
+    fetchKeys(client, keyVaultNamespace, filter, timeoutContext) {
+        const { db: dbName, collection: collectionName } = utils_1.MongoDBCollectionNamespace.fromString(keyVaultNamespace);
+        return client
+            .db(dbName)
+            .collection(collectionName, { readConcern: { level: 'majority' } })
+            .find((0, bson_1.deserialize)(filter), {
+            timeoutContext: timeoutContext && new abstract_cursor_1.CursorTimeoutContext(timeoutContext, Symbol())
+        })
+            .toArray();
+    }
+}
+exports.StateMachine = StateMachine;
+//# sourceMappingURL=state_machine.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/client-side-encryption/state_machine.js.map b/backend/node_modules/mongodb/lib/client-side-encryption/state_machine.js.map
new file mode 100644
index 0000000..8d8fb6a
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/client-side-encryption/state_machine.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/auth_provider.js b/backend/node_modules/mongodb/lib/cmap/auth/auth_provider.js
new file mode 100644
index 0000000..99cbf72
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/auth_provider.js
@@ -0,0 +1,51 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.AuthProvider = exports.AuthContext = void 0;
+const error_1 = require("../../error");
+/**
+ * Context used during authentication
+ * @internal
+ */
+class AuthContext {
+    constructor(connection, credentials, options) {
+        /** If the context is for reauthentication. */
+        this.reauthenticating = false;
+        this.connection = connection;
+        this.credentials = credentials;
+        this.options = options;
+    }
+}
+exports.AuthContext = AuthContext;
+/**
+ * Provider used during authentication.
+ * @internal
+ */
+class AuthProvider {
+    /**
+     * Prepare the handshake document before the initial handshake.
+     *
+     * @param handshakeDoc - The document used for the initial handshake on a connection
+     * @param authContext - Context for authentication flow
+     */
+    async prepare(handshakeDoc, _authContext) {
+        return handshakeDoc;
+    }
+    /**
+     * Reauthenticate.
+     * @param context - The shared auth context.
+     */
+    async reauth(context) {
+        if (context.reauthenticating) {
+            throw new error_1.MongoRuntimeError('Reauthentication already in progress.');
+        }
+        try {
+            context.reauthenticating = true;
+            await this.auth(context);
+        }
+        finally {
+            context.reauthenticating = false;
+        }
+    }
+}
+exports.AuthProvider = AuthProvider;
+//# sourceMappingURL=auth_provider.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/auth_provider.js.map b/backend/node_modules/mongodb/lib/cmap/auth/auth_provider.js.map
new file mode 100644
index 0000000..0542aed
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/auth_provider.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"auth_provider.js","sourceRoot":"","sources":["../../../src/cmap/auth/auth_provider.ts"],"names":[],"mappings":";;;AACA,uCAAgD;AAKhD;;;GAGG;AACH,MAAa,WAAW;IAetB,YACE,UAAsB,EACtB,WAAyC,EACzC,OAA0B;QAb5B,8CAA8C;QAC9C,qBAAgB,GAAG,KAAK,CAAC;QAcvB,IAAI,CAAC,UAAU,GAAG,UAAU,CAAC;QAC7B,IAAI,CAAC,WAAW,GAAG,WAAW,CAAC;QAC/B,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;IACzB,CAAC;CACF;AAxBD,kCAwBC;AAED;;;GAGG;AACH,MAAsB,YAAY;IAChC;;;;;OAKG;IACH,KAAK,CAAC,OAAO,CACX,YAA+B,EAC/B,YAAyB;QAEzB,OAAO,YAAY,CAAC;IACtB,CAAC;IASD;;;OAGG;IACH,KAAK,CAAC,MAAM,CAAC,OAAoB;QAC/B,IAAI,OAAO,CAAC,gBAAgB,EAAE,CAAC;YAC7B,MAAM,IAAI,yBAAiB,CAAC,uCAAuC,CAAC,CAAC;QACvE,CAAC;QACD,IAAI,CAAC;YACH,OAAO,CAAC,gBAAgB,GAAG,IAAI,CAAC;YAChC,MAAM,IAAI,CAAC,IAAI,CAAC,OAAO,CAAC,CAAC;QAC3B,CAAC;gBAAS,CAAC;YACT,OAAO,CAAC,gBAAgB,GAAG,KAAK,CAAC;QACnC,CAAC;IACH,CAAC;CACF;AApCD,oCAoCC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/aws_temporary_credentials.js b/backend/node_modules/mongodb/lib/cmap/auth/aws_temporary_credentials.js
new file mode 100644
index 0000000..bc839b5
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/aws_temporary_credentials.js
@@ -0,0 +1,140 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.LegacyAWSTemporaryCredentialProvider = exports.AWSSDKCredentialProvider = exports.AWSTemporaryCredentialProvider = void 0;
+const deps_1 = require("../../deps");
+const error_1 = require("../../error");
+const utils_1 = require("../../utils");
+const AWS_RELATIVE_URI = 'http://169.254.170.2';
+const AWS_EC2_URI = 'http://169.254.169.254';
+const AWS_EC2_PATH = '/latest/meta-data/iam/security-credentials';
+/**
+ * @internal
+ *
+ * Fetches temporary AWS credentials.
+ */
+class AWSTemporaryCredentialProvider {
+    static get awsSDK() {
+        AWSTemporaryCredentialProvider._awsSDK ??= (0, deps_1.getAwsCredentialProvider)();
+        return AWSTemporaryCredentialProvider._awsSDK;
+    }
+    static get isAWSSDKInstalled() {
+        return !('kModuleError' in AWSTemporaryCredentialProvider.awsSDK);
+    }
+}
+exports.AWSTemporaryCredentialProvider = AWSTemporaryCredentialProvider;
+/** @internal */
+class AWSSDKCredentialProvider extends AWSTemporaryCredentialProvider {
+    /**
+     * The AWS SDK caches credentials automatically and handles refresh when the credentials have expired.
+     * To ensure this occurs, we need to cache the `provider` returned by the AWS sdk and re-use it when fetching credentials.
+     */
+    get provider() {
+        if ('kModuleError' in AWSTemporaryCredentialProvider.awsSDK) {
+            throw AWSTemporaryCredentialProvider.awsSDK.kModuleError;
+        }
+        if (this._provider) {
+            return this._provider;
+        }
+        let { AWS_STS_REGIONAL_ENDPOINTS = '', AWS_REGION = '' } = process.env;
+        AWS_STS_REGIONAL_ENDPOINTS = AWS_STS_REGIONAL_ENDPOINTS.toLowerCase();
+        AWS_REGION = AWS_REGION.toLowerCase();
+        /** The option setting should work only for users who have explicit settings in their environment, the driver should not encode "defaults" */
+        const awsRegionSettingsExist = AWS_REGION.length !== 0 && AWS_STS_REGIONAL_ENDPOINTS.length !== 0;
+        /**
+         * The following regions use the global AWS STS endpoint, sts.amazonaws.com, by default
+         * https://docs.aws.amazon.com/sdkref/latest/guide/feature-sts-regionalized-endpoints.html
+         */
+        const LEGACY_REGIONS = new Set([
+            'ap-northeast-1',
+            'ap-south-1',
+            'ap-southeast-1',
+            'ap-southeast-2',
+            'aws-global',
+            'ca-central-1',
+            'eu-central-1',
+            'eu-north-1',
+            'eu-west-1',
+            'eu-west-2',
+            'eu-west-3',
+            'sa-east-1',
+            'us-east-1',
+            'us-east-2',
+            'us-west-1',
+            'us-west-2'
+        ]);
+        /**
+         * If AWS_STS_REGIONAL_ENDPOINTS is set to regional, users are opting into the new behavior of respecting the region settings
+         *
+         * If AWS_STS_REGIONAL_ENDPOINTS is set to legacy, then "old" regions need to keep using the global setting.
+         * Technically the SDK gets this wrong, it reaches out to 'sts.us-east-1.amazonaws.com' when it should be 'sts.amazonaws.com'.
+         * That is not our bug to fix here. We leave that up to the SDK.
+         */
+        const useRegionalSts = AWS_STS_REGIONAL_ENDPOINTS === 'regional' ||
+            (AWS_STS_REGIONAL_ENDPOINTS === 'legacy' && !LEGACY_REGIONS.has(AWS_REGION));
+        this._provider =
+            awsRegionSettingsExist && useRegionalSts
+                ? AWSTemporaryCredentialProvider.awsSDK.fromNodeProviderChain({
+                    clientConfig: { region: AWS_REGION }
+                })
+                : AWSTemporaryCredentialProvider.awsSDK.fromNodeProviderChain();
+        return this._provider;
+    }
+    async getCredentials() {
+        /*
+         * Creates a credential provider that will attempt to find credentials from the
+         * following sources (listed in order of precedence):
+         *
+         * - Environment variables exposed via process.env
+         * - SSO credentials from token cache
+         * - Web identity token credentials
+         * - Shared credentials and config ini files
+         * - The EC2/ECS Instance Metadata Service
+         */
+        try {
+            const creds = await this.provider();
+            return {
+                AccessKeyId: creds.accessKeyId,
+                SecretAccessKey: creds.secretAccessKey,
+                Token: creds.sessionToken,
+                Expiration: creds.expiration
+            };
+        }
+        catch (error) {
+            throw new error_1.MongoAWSError(error.message, { cause: error });
+        }
+    }
+}
+exports.AWSSDKCredentialProvider = AWSSDKCredentialProvider;
+/**
+ * @internal
+ * Fetches credentials manually (without the AWS SDK), as outlined in the [Obtaining Credentials](https://github.com/mongodb/specifications/blob/master/source/auth/auth.md#obtaining-credentials)
+ * section of the Auth spec.
+ */
+class LegacyAWSTemporaryCredentialProvider extends AWSTemporaryCredentialProvider {
+    async getCredentials() {
+        // If the environment variable AWS_CONTAINER_CREDENTIALS_RELATIVE_URI
+        // is set then drivers MUST assume that it was set by an AWS ECS agent
+        if (process.env.AWS_CONTAINER_CREDENTIALS_RELATIVE_URI) {
+            return await (0, utils_1.request)(`${AWS_RELATIVE_URI}${process.env.AWS_CONTAINER_CREDENTIALS_RELATIVE_URI}`);
+        }
+        // Otherwise assume we are on an EC2 instance
+        // get a token
+        const token = await (0, utils_1.request)(`${AWS_EC2_URI}/latest/api/token`, {
+            method: 'PUT',
+            json: false,
+            headers: { 'X-aws-ec2-metadata-token-ttl-seconds': 30 }
+        });
+        // get role name
+        const roleName = await (0, utils_1.request)(`${AWS_EC2_URI}/${AWS_EC2_PATH}`, {
+            json: false,
+            headers: { 'X-aws-ec2-metadata-token': token }
+        });
+        // get temp credentials
+        const creds = await (0, utils_1.request)(`${AWS_EC2_URI}/${AWS_EC2_PATH}/${roleName}`, {
+            headers: { 'X-aws-ec2-metadata-token': token }
+        });
+        return creds;
+    }
+}
+exports.LegacyAWSTemporaryCredentialProvider = LegacyAWSTemporaryCredentialProvider;
+//# sourceMappingURL=aws_temporary_credentials.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/aws_temporary_credentials.js.map b/backend/node_modules/mongodb/lib/cmap/auth/aws_temporary_credentials.js.map
new file mode 100644
index 0000000..1ae0463
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/aws_temporary_credentials.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"aws_temporary_credentials.js","sourceRoot":"","sources":["../../../src/cmap/auth/aws_temporary_credentials.ts"],"names":[],"mappings":";;;AAAA,qCAA2E;AAC3E,uCAA4C;AAC5C,uCAAsC;AAEtC,MAAM,gBAAgB,GAAG,sBAAsB,CAAC;AAChD,MAAM,WAAW,GAAG,wBAAwB,CAAC;AAC7C,MAAM,YAAY,GAAG,4CAA4C,CAAC;AAiBlE;;;;GAIG;AACH,MAAsB,8BAA8B;IAGxC,MAAM,KAAK,MAAM;QACzB,8BAA8B,CAAC,OAAO,KAAK,IAAA,+BAAwB,GAAE,CAAC;QACtE,OAAO,8BAA8B,CAAC,OAAO,CAAC;IAChD,CAAC;IAED,MAAM,KAAK,iBAAiB;QAC1B,OAAO,CAAC,CAAC,cAAc,IAAI,8BAA8B,CAAC,MAAM,CAAC,CAAC;IACpE,CAAC;CACF;AAXD,wEAWC;AAED,gBAAgB;AAChB,MAAa,wBAAyB,SAAQ,8BAA8B;IAE1E;;;OAGG;IACH,IAAY,QAAQ;QAClB,IAAI,cAAc,IAAI,8BAA8B,CAAC,MAAM,EAAE,CAAC;YAC5D,MAAM,8BAA8B,CAAC,MAAM,CAAC,YAAY,CAAC;QAC3D,CAAC;QACD,IAAI,IAAI,CAAC,SAAS,EAAE,CAAC;YACnB,OAAO,IAAI,CAAC,SAAS,CAAC;QACxB,CAAC;QACD,IAAI,EAAE,0BAA0B,GAAG,EAAE,EAAE,UAAU,GAAG,EAAE,EAAE,GAAG,OAAO,CAAC,GAAG,CAAC;QACvE,0BAA0B,GAAG,0BAA0B,CAAC,WAAW,EAAE,CAAC;QACtE,UAAU,GAAG,UAAU,CAAC,WAAW,EAAE,CAAC;QAEtC,6IAA6I;QAC7I,MAAM,sBAAsB,GAC1B,UAAU,CAAC,MAAM,KAAK,CAAC,IAAI,0BAA0B,CAAC,MAAM,KAAK,CAAC,CAAC;QAErE;;;WAGG;QACH,MAAM,cAAc,GAAG,IAAI,GAAG,CAAC;YAC7B,gBAAgB;YAChB,YAAY;YACZ,gBAAgB;YAChB,gBAAgB;YAChB,YAAY;YACZ,cAAc;YACd,cAAc;YACd,YAAY;YACZ,WAAW;YACX,WAAW;YACX,WAAW;YACX,WAAW;YACX,WAAW;YACX,WAAW;YACX,WAAW;YACX,WAAW;SACZ,CAAC,CAAC;QACH;;;;;;WAMG;QACH,MAAM,cAAc,GAClB,0BAA0B,KAAK,UAAU;YACzC,CAAC,0BAA0B,KAAK,QAAQ,IAAI,CAAC,cAAc,CAAC,GAAG,CAAC,UAAU,CAAC,CAAC,CAAC;QAE/E,IAAI,CAAC,SAAS;YACZ,sBAAsB,IAAI,cAAc;gBACtC,CAAC,CAAC,8BAA8B,CAAC,MAAM,CAAC,qBAAqB,CAAC;oBAC1D,YAAY,EAAE,EAAE,MAAM,EAAE,UAAU,EAAE;iBACrC,CAAC;gBACJ,CAAC,CAAC,8BAA8B,CAAC,MAAM,CAAC,qBAAqB,EAAE,CAAC;QAEpE,OAAO,IAAI,CAAC,SAAS,CAAC;IACxB,CAAC;IAEQ,KAAK,CAAC,cAAc;QAC3B;;;;;;;;;WASG;QACH,IAAI,CAAC;YACH,MAAM,KAAK,GAAG,MAAM,IAAI,CAAC,QAAQ,EAAE,CAAC;YACpC,OAAO;gBACL,WAAW,EAAE,KAAK,CAAC,WAAW;gBAC9B,eAAe,EAAE,KAAK,CAAC,eAAe;gBACtC,KAAK,EAAE,KAAK,CAAC,YAAY;gBACzB,UAAU,EAAE,KAAK,CAAC,UAAU;aAC7B,CAAC;QACJ,CAAC;QAAC,OAAO,KAAK,EAAE,CAAC;YACf,MAAM,IAAI,qBAAa,CAAC,KAAK,CAAC,OAAO,EAAE,EAAE,KAAK,EAAE,KAAK,EAAE,CAAC,CAAC;QAC3D,CAAC;IACH,CAAC;CACF;AAvFD,4DAuFC;AAED;;;;GAIG;AACH,MAAa,oCAAqC,SAAQ,8BAA8B;IAC7E,KAAK,CAAC,cAAc;QAC3B,qEAAqE;QACrE,sEAAsE;QACtE,IAAI,OAAO,CAAC,GAAG,CAAC,sCAAsC,EAAE,CAAC;YACvD,OAAO,MAAM,IAAA,eAAO,EAClB,GAAG,gBAAgB,GAAG,OAAO,CAAC,GAAG,CAAC,sCAAsC,EAAE,CAC3E,CAAC;QACJ,CAAC;QAED,6CAA6C;QAE7C,cAAc;QACd,MAAM,KAAK,GAAG,MAAM,IAAA,eAAO,EAAC,GAAG,WAAW,mBAAmB,EAAE;YAC7D,MAAM,EAAE,KAAK;YACb,IAAI,EAAE,KAAK;YACX,OAAO,EAAE,EAAE,sCAAsC,EAAE,EAAE,EAAE;SACxD,CAAC,CAAC;QAEH,gBAAgB;QAChB,MAAM,QAAQ,GAAG,MAAM,IAAA,eAAO,EAAC,GAAG,WAAW,IAAI,YAAY,EAAE,EAAE;YAC/D,IAAI,EAAE,KAAK;YACX,OAAO,EAAE,EAAE,0BAA0B,EAAE,KAAK,EAAE;SAC/C,CAAC,CAAC;QAEH,uBAAuB;QACvB,MAAM,KAAK,GAAG,MAAM,IAAA,eAAO,EAAC,GAAG,WAAW,IAAI,YAAY,IAAI,QAAQ,EAAE,EAAE;YACxE,OAAO,EAAE,EAAE,0BAA0B,EAAE,KAAK,EAAE;SAC/C,CAAC,CAAC;QAEH,OAAO,KAAK,CAAC;IACf,CAAC;CACF;AAhCD,oFAgCC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/gssapi.js b/backend/node_modules/mongodb/lib/cmap/auth/gssapi.js
new file mode 100644
index 0000000..dd4be28
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/gssapi.js
@@ -0,0 +1,154 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.GSSAPI = exports.GSSAPICanonicalizationValue = void 0;
+exports.performGSSAPICanonicalizeHostName = performGSSAPICanonicalizeHostName;
+exports.resolveCname = resolveCname;
+const dns = require("dns");
+const deps_1 = require("../../deps");
+const error_1 = require("../../error");
+const utils_1 = require("../../utils");
+const auth_provider_1 = require("./auth_provider");
+/** @public */
+exports.GSSAPICanonicalizationValue = Object.freeze({
+    on: true,
+    off: false,
+    none: 'none',
+    forward: 'forward',
+    forwardAndReverse: 'forwardAndReverse'
+});
+async function externalCommand(connection, command) {
+    const response = await connection.command((0, utils_1.ns)('$external.$cmd'), command);
+    return response;
+}
+let krb;
+class GSSAPI extends auth_provider_1.AuthProvider {
+    async auth(authContext) {
+        const { connection, credentials } = authContext;
+        if (credentials == null) {
+            throw new error_1.MongoMissingCredentialsError('Credentials required for GSSAPI authentication');
+        }
+        const { username } = credentials;
+        const client = await makeKerberosClient(authContext);
+        const payload = await client.step('');
+        const saslStartResponse = await externalCommand(connection, saslStart(payload));
+        const negotiatedPayload = await negotiate(client, 10, saslStartResponse.payload);
+        const saslContinueResponse = await externalCommand(connection, saslContinue(negotiatedPayload, saslStartResponse.conversationId));
+        const finalizePayload = await finalize(client, username, saslContinueResponse.payload);
+        await externalCommand(connection, {
+            saslContinue: 1,
+            conversationId: saslContinueResponse.conversationId,
+            payload: finalizePayload
+        });
+    }
+}
+exports.GSSAPI = GSSAPI;
+async function makeKerberosClient(authContext) {
+    const { hostAddress } = authContext.options;
+    const { credentials } = authContext;
+    if (!hostAddress || typeof hostAddress.host !== 'string' || !credentials) {
+        throw new error_1.MongoInvalidArgumentError('Connection must have host and port and credentials defined.');
+    }
+    loadKrb();
+    if ('kModuleError' in krb) {
+        throw krb['kModuleError'];
+    }
+    const { initializeClient } = krb;
+    const { username, password } = credentials;
+    const mechanismProperties = credentials.mechanismProperties;
+    const serviceName = mechanismProperties.SERVICE_NAME ?? 'mongodb';
+    const host = await performGSSAPICanonicalizeHostName(hostAddress.host, mechanismProperties);
+    const initOptions = {};
+    if (password != null) {
+        // TODO(NODE-5139): These do not match the typescript options in initializeClient
+        Object.assign(initOptions, { user: username, password: password });
+    }
+    const spnHost = mechanismProperties.SERVICE_HOST ?? host;
+    let spn = `${serviceName}${process.platform === 'win32' ? '/' : '@'}${spnHost}`;
+    if ('SERVICE_REALM' in mechanismProperties) {
+        spn = `${spn}@${mechanismProperties.SERVICE_REALM}`;
+    }
+    return await initializeClient(spn, initOptions);
+}
+function saslStart(payload) {
+    return {
+        saslStart: 1,
+        mechanism: 'GSSAPI',
+        payload,
+        autoAuthorize: 1
+    };
+}
+function saslContinue(payload, conversationId) {
+    return {
+        saslContinue: 1,
+        conversationId,
+        payload
+    };
+}
+async function negotiate(client, retries, payload) {
+    try {
+        const response = await client.step(payload);
+        return response || '';
+    }
+    catch (error) {
+        if (retries === 0) {
+            // Retries exhausted, raise error
+            throw error;
+        }
+        // Adjust number of retries and call step again
+        return await negotiate(client, retries - 1, payload);
+    }
+}
+async function finalize(client, user, payload) {
+    // GSS Client Unwrap
+    const response = await client.unwrap(payload);
+    return await client.wrap(response || '', { user });
+}
+async function performGSSAPICanonicalizeHostName(host, mechanismProperties) {
+    const mode = mechanismProperties.CANONICALIZE_HOST_NAME;
+    if (!mode || mode === exports.GSSAPICanonicalizationValue.none) {
+        return host;
+    }
+    // If forward and reverse or true
+    if (mode === exports.GSSAPICanonicalizationValue.on ||
+        mode === exports.GSSAPICanonicalizationValue.forwardAndReverse) {
+        // Perform the lookup of the ip address.
+        const { address } = await dns.promises.lookup(host);
+        try {
+            // Perform a reverse ptr lookup on the ip address.
+            const results = await dns.promises.resolvePtr(address);
+            // If the ptr did not error but had no results, return the host.
+            return results.length > 0 ? results[0] : host;
+        }
+        catch {
+            // This can error as ptr records may not exist for all ips. In this case
+            // fallback to a cname lookup as dns.lookup() does not return the
+            // cname.
+            return await resolveCname(host);
+        }
+    }
+    else {
+        // The case for forward is just to resolve the cname as dns.lookup()
+        // will not return it.
+        return await resolveCname(host);
+    }
+}
+async function resolveCname(host) {
+    // Attempt to resolve the host name
+    try {
+        const results = await dns.promises.resolveCname(host);
+        // Get the first resolved host id
+        return results.length > 0 ? results[0] : host;
+    }
+    catch {
+        return host;
+    }
+}
+/**
+ * Load the Kerberos library.
+ */
+function loadKrb() {
+    if (!krb) {
+        krb = (0, deps_1.getKerberos)();
+    }
+}
+//# sourceMappingURL=gssapi.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/gssapi.js.map b/backend/node_modules/mongodb/lib/cmap/auth/gssapi.js.map
new file mode 100644
index 0000000..0500daf
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/gssapi.js.map
@@ -0,0 +1 @@
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diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongo_credentials.js b/backend/node_modules/mongodb/lib/cmap/auth/mongo_credentials.js
new file mode 100644
index 0000000..7f3bbb0
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongo_credentials.js
@@ -0,0 +1,183 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.MongoCredentials = exports.DEFAULT_ALLOWED_HOSTS = void 0;
+const error_1 = require("../../error");
+const gssapi_1 = require("./gssapi");
+const providers_1 = require("./providers");
+/**
+ * @see https://github.com/mongodb/specifications/blob/master/source/auth/auth.md
+ */
+function getDefaultAuthMechanism(hello) {
+    if (hello) {
+        // If hello contains saslSupportedMechs, use scram-sha-256
+        // if it is available, else scram-sha-1
+        if (Array.isArray(hello.saslSupportedMechs)) {
+            return hello.saslSupportedMechs.includes(providers_1.AuthMechanism.MONGODB_SCRAM_SHA256)
+                ? providers_1.AuthMechanism.MONGODB_SCRAM_SHA256
+                : providers_1.AuthMechanism.MONGODB_SCRAM_SHA1;
+        }
+    }
+    // Default auth mechanism for 4.0 and higher.
+    return providers_1.AuthMechanism.MONGODB_SCRAM_SHA256;
+}
+const ALLOWED_ENVIRONMENT_NAMES = [
+    'test',
+    'azure',
+    'gcp',
+    'k8s'
+];
+const ALLOWED_HOSTS_ERROR = 'Auth mechanism property ALLOWED_HOSTS must be an array of strings.';
+/** @internal */
+exports.DEFAULT_ALLOWED_HOSTS = [
+    '*.mongodb.net',
+    '*.mongodb-qa.net',
+    '*.mongodb-dev.net',
+    '*.mongodbgov.net',
+    'localhost',
+    '127.0.0.1',
+    '::1'
+];
+/** Error for when the token audience is missing in the environment. */
+const TOKEN_RESOURCE_MISSING_ERROR = 'TOKEN_RESOURCE must be set in the auth mechanism properties when ENVIRONMENT is azure or gcp.';
+/**
+ * A representation of the credentials used by MongoDB
+ * @public
+ */
+class MongoCredentials {
+    constructor(options) {
+        this.username = options.username ?? '';
+        this.password = options.password;
+        this.source = options.source;
+        if (!this.source && options.db) {
+            this.source = options.db;
+        }
+        this.mechanism = options.mechanism || providers_1.AuthMechanism.MONGODB_DEFAULT;
+        this.mechanismProperties = options.mechanismProperties || {};
+        if (this.mechanism.match(/MONGODB-AWS/i)) {
+            if (!this.username && process.env.AWS_ACCESS_KEY_ID) {
+                this.username = process.env.AWS_ACCESS_KEY_ID;
+            }
+            if (!this.password && process.env.AWS_SECRET_ACCESS_KEY) {
+                this.password = process.env.AWS_SECRET_ACCESS_KEY;
+            }
+            if (this.mechanismProperties.AWS_SESSION_TOKEN == null &&
+                process.env.AWS_SESSION_TOKEN != null) {
+                this.mechanismProperties = {
+                    ...this.mechanismProperties,
+                    AWS_SESSION_TOKEN: process.env.AWS_SESSION_TOKEN
+                };
+            }
+        }
+        if (this.mechanism === providers_1.AuthMechanism.MONGODB_OIDC && !this.mechanismProperties.ALLOWED_HOSTS) {
+            this.mechanismProperties = {
+                ...this.mechanismProperties,
+                ALLOWED_HOSTS: exports.DEFAULT_ALLOWED_HOSTS
+            };
+        }
+        Object.freeze(this.mechanismProperties);
+        Object.freeze(this);
+    }
+    /** Determines if two MongoCredentials objects are equivalent */
+    equals(other) {
+        return (this.mechanism === other.mechanism &&
+            this.username === other.username &&
+            this.password === other.password &&
+            this.source === other.source);
+    }
+    /**
+     * If the authentication mechanism is set to "default", resolves the authMechanism
+     * based on the server version and server supported sasl mechanisms.
+     *
+     * @param hello - A hello response from the server
+     */
+    resolveAuthMechanism(hello) {
+        // If the mechanism is not "default", then it does not need to be resolved
+        if (this.mechanism.match(/DEFAULT/i)) {
+            return new MongoCredentials({
+                username: this.username,
+                password: this.password,
+                source: this.source,
+                mechanism: getDefaultAuthMechanism(hello),
+                mechanismProperties: this.mechanismProperties
+            });
+        }
+        return this;
+    }
+    validate() {
+        if ((this.mechanism === providers_1.AuthMechanism.MONGODB_GSSAPI ||
+            this.mechanism === providers_1.AuthMechanism.MONGODB_PLAIN ||
+            this.mechanism === providers_1.AuthMechanism.MONGODB_SCRAM_SHA1 ||
+            this.mechanism === providers_1.AuthMechanism.MONGODB_SCRAM_SHA256) &&
+            !this.username) {
+            throw new error_1.MongoMissingCredentialsError(`Username required for mechanism '${this.mechanism}'`);
+        }
+        if (this.mechanism === providers_1.AuthMechanism.MONGODB_OIDC) {
+            if (this.username &&
+                this.mechanismProperties.ENVIRONMENT &&
+                this.mechanismProperties.ENVIRONMENT !== 'azure') {
+                throw new error_1.MongoInvalidArgumentError(`username and ENVIRONMENT '${this.mechanismProperties.ENVIRONMENT}' may not be used together for mechanism '${this.mechanism}'.`);
+            }
+            if (this.username && this.password) {
+                throw new error_1.MongoInvalidArgumentError(`No password is allowed in ENVIRONMENT '${this.mechanismProperties.ENVIRONMENT}' for '${this.mechanism}'.`);
+            }
+            if ((this.mechanismProperties.ENVIRONMENT === 'azure' ||
+                this.mechanismProperties.ENVIRONMENT === 'gcp') &&
+                !this.mechanismProperties.TOKEN_RESOURCE) {
+                throw new error_1.MongoInvalidArgumentError(TOKEN_RESOURCE_MISSING_ERROR);
+            }
+            if (this.mechanismProperties.ENVIRONMENT &&
+                !ALLOWED_ENVIRONMENT_NAMES.includes(this.mechanismProperties.ENVIRONMENT)) {
+                throw new error_1.MongoInvalidArgumentError(`Currently only a ENVIRONMENT in ${ALLOWED_ENVIRONMENT_NAMES.join(',')} is supported for mechanism '${this.mechanism}'.`);
+            }
+            if (!this.mechanismProperties.ENVIRONMENT &&
+                !this.mechanismProperties.OIDC_CALLBACK &&
+                !this.mechanismProperties.OIDC_HUMAN_CALLBACK) {
+                throw new error_1.MongoInvalidArgumentError(`Either a ENVIRONMENT, OIDC_CALLBACK, or OIDC_HUMAN_CALLBACK must be specified for mechanism '${this.mechanism}'.`);
+            }
+            if (this.mechanismProperties.ALLOWED_HOSTS) {
+                const hosts = this.mechanismProperties.ALLOWED_HOSTS;
+                if (!Array.isArray(hosts)) {
+                    throw new error_1.MongoInvalidArgumentError(ALLOWED_HOSTS_ERROR);
+                }
+                for (const host of hosts) {
+                    if (typeof host !== 'string') {
+                        throw new error_1.MongoInvalidArgumentError(ALLOWED_HOSTS_ERROR);
+                    }
+                }
+            }
+        }
+        if (providers_1.AUTH_MECHS_AUTH_SRC_EXTERNAL.has(this.mechanism)) {
+            if (this.source != null && this.source !== '$external') {
+                // TODO(NODE-3485): Replace this with a MongoAuthValidationError
+                throw new error_1.MongoAPIError(`Invalid source '${this.source}' for mechanism '${this.mechanism}' specified.`);
+            }
+        }
+        if (this.mechanism === providers_1.AuthMechanism.MONGODB_PLAIN && this.source == null) {
+            // TODO(NODE-3485): Replace this with a MongoAuthValidationError
+            throw new error_1.MongoAPIError('PLAIN Authentication Mechanism needs an auth source');
+        }
+        if (this.mechanism === providers_1.AuthMechanism.MONGODB_X509 && this.password != null) {
+            if (this.password === '') {
+                Reflect.set(this, 'password', undefined);
+                return;
+            }
+            // TODO(NODE-3485): Replace this with a MongoAuthValidationError
+            throw new error_1.MongoAPIError(`Password not allowed for mechanism MONGODB-X509`);
+        }
+        const canonicalization = this.mechanismProperties.CANONICALIZE_HOST_NAME ?? false;
+        if (!Object.values(gssapi_1.GSSAPICanonicalizationValue).includes(canonicalization)) {
+            throw new error_1.MongoAPIError(`Invalid CANONICALIZE_HOST_NAME value: ${canonicalization}`);
+        }
+    }
+    static merge(creds, options) {
+        return new MongoCredentials({
+            username: options.username ?? creds?.username ?? '',
+            password: options.password ?? creds?.password ?? '',
+            mechanism: options.mechanism ?? creds?.mechanism ?? providers_1.AuthMechanism.MONGODB_DEFAULT,
+            mechanismProperties: options.mechanismProperties ?? creds?.mechanismProperties ?? {},
+            source: options.source ?? options.db ?? creds?.source ?? 'admin'
+        });
+    }
+}
+exports.MongoCredentials = MongoCredentials;
+//# sourceMappingURL=mongo_credentials.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongo_credentials.js.map b/backend/node_modules/mongodb/lib/cmap/auth/mongo_credentials.js.map
new file mode 100644
index 0000000..cb57f13
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongo_credentials.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongodb_aws.js b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_aws.js
new file mode 100644
index 0000000..7f60afe
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_aws.js
@@ -0,0 +1,137 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.MongoDBAWS = void 0;
+const BSON = require("../../bson");
+const deps_1 = require("../../deps");
+const error_1 = require("../../error");
+const utils_1 = require("../../utils");
+const auth_provider_1 = require("./auth_provider");
+const aws_temporary_credentials_1 = require("./aws_temporary_credentials");
+const mongo_credentials_1 = require("./mongo_credentials");
+const providers_1 = require("./providers");
+const ASCII_N = 110;
+const bsonOptions = {
+    useBigInt64: false,
+    promoteLongs: true,
+    promoteValues: true,
+    promoteBuffers: false,
+    bsonRegExp: false
+};
+class MongoDBAWS extends auth_provider_1.AuthProvider {
+    constructor() {
+        super();
+        this.credentialFetcher = aws_temporary_credentials_1.AWSTemporaryCredentialProvider.isAWSSDKInstalled
+            ? new aws_temporary_credentials_1.AWSSDKCredentialProvider()
+            : new aws_temporary_credentials_1.LegacyAWSTemporaryCredentialProvider();
+    }
+    async auth(authContext) {
+        const { connection } = authContext;
+        if (!authContext.credentials) {
+            throw new error_1.MongoMissingCredentialsError('AuthContext must provide credentials.');
+        }
+        if ('kModuleError' in deps_1.aws4) {
+            throw deps_1.aws4['kModuleError'];
+        }
+        const { sign } = deps_1.aws4;
+        if ((0, utils_1.maxWireVersion)(connection) < 9) {
+            throw new error_1.MongoCompatibilityError('MONGODB-AWS authentication requires MongoDB version 4.4 or later');
+        }
+        if (!authContext.credentials.username) {
+            authContext.credentials = await makeTempCredentials(authContext.credentials, this.credentialFetcher);
+        }
+        const { credentials } = authContext;
+        const accessKeyId = credentials.username;
+        const secretAccessKey = credentials.password;
+        // Allow the user to specify an AWS session token for authentication with temporary credentials.
+        const sessionToken = credentials.mechanismProperties.AWS_SESSION_TOKEN;
+        // If all three defined, include sessionToken, else include username and pass, else no credentials
+        const awsCredentials = accessKeyId && secretAccessKey && sessionToken
+            ? { accessKeyId, secretAccessKey, sessionToken }
+            : accessKeyId && secretAccessKey
+                ? { accessKeyId, secretAccessKey }
+                : undefined;
+        const db = credentials.source;
+        const nonce = await (0, utils_1.randomBytes)(32);
+        // All messages between MongoDB clients and servers are sent as BSON objects
+        // in the payload field of saslStart and saslContinue.
+        const saslStart = {
+            saslStart: 1,
+            mechanism: 'MONGODB-AWS',
+            payload: BSON.serialize({ r: nonce, p: ASCII_N }, bsonOptions)
+        };
+        const saslStartResponse = await connection.command((0, utils_1.ns)(`${db}.$cmd`), saslStart, undefined);
+        const serverResponse = BSON.deserialize(saslStartResponse.payload.buffer, bsonOptions);
+        const host = serverResponse.h;
+        const serverNonce = serverResponse.s.buffer;
+        if (serverNonce.length !== 64) {
+            // TODO(NODE-3483)
+            throw new error_1.MongoRuntimeError(`Invalid server nonce length ${serverNonce.length}, expected 64`);
+        }
+        if (!utils_1.ByteUtils.equals(serverNonce.subarray(0, nonce.byteLength), nonce)) {
+            // throw because the serverNonce's leading 32 bytes must equal the client nonce's 32 bytes
+            // https://github.com/mongodb/specifications/blob/master/source/auth/auth.md#conversation-5
+            // TODO(NODE-3483)
+            throw new error_1.MongoRuntimeError('Server nonce does not begin with client nonce');
+        }
+        if (host.length < 1 || host.length > 255 || host.indexOf('..') !== -1) {
+            // TODO(NODE-3483)
+            throw new error_1.MongoRuntimeError(`Server returned an invalid host: "${host}"`);
+        }
+        const body = 'Action=GetCallerIdentity&Version=2011-06-15';
+        const options = sign({
+            method: 'POST',
+            host,
+            region: deriveRegion(serverResponse.h),
+            service: 'sts',
+            headers: {
+                'Content-Type': 'application/x-www-form-urlencoded',
+                'Content-Length': body.length,
+                'X-MongoDB-Server-Nonce': utils_1.ByteUtils.toBase64(serverNonce),
+                'X-MongoDB-GS2-CB-Flag': 'n'
+            },
+            path: '/',
+            body
+        }, awsCredentials);
+        const payload = {
+            a: options.headers.Authorization,
+            d: options.headers['X-Amz-Date']
+        };
+        if (sessionToken) {
+            payload.t = sessionToken;
+        }
+        const saslContinue = {
+            saslContinue: 1,
+            conversationId: 1,
+            payload: BSON.serialize(payload, bsonOptions)
+        };
+        await connection.command((0, utils_1.ns)(`${db}.$cmd`), saslContinue, undefined);
+    }
+}
+exports.MongoDBAWS = MongoDBAWS;
+async function makeTempCredentials(credentials, awsCredentialFetcher) {
+    function makeMongoCredentialsFromAWSTemp(creds) {
+        // The AWS session token (creds.Token) may or may not be set.
+        if (!creds.AccessKeyId || !creds.SecretAccessKey) {
+            throw new error_1.MongoMissingCredentialsError('Could not obtain temporary MONGODB-AWS credentials');
+        }
+        return new mongo_credentials_1.MongoCredentials({
+            username: creds.AccessKeyId,
+            password: creds.SecretAccessKey,
+            source: credentials.source,
+            mechanism: providers_1.AuthMechanism.MONGODB_AWS,
+            mechanismProperties: {
+                AWS_SESSION_TOKEN: creds.Token
+            }
+        });
+    }
+    const temporaryCredentials = await awsCredentialFetcher.getCredentials();
+    return makeMongoCredentialsFromAWSTemp(temporaryCredentials);
+}
+function deriveRegion(host) {
+    const parts = host.split('.');
+    if (parts.length === 1 || parts[1] === 'amazonaws') {
+        return 'us-east-1';
+    }
+    return parts[1];
+}
+//# sourceMappingURL=mongodb_aws.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongodb_aws.js.map b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_aws.js.map
new file mode 100644
index 0000000..d5a98a1
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_aws.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc.js b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc.js
new file mode 100644
index 0000000..16b6de3
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc.js
@@ -0,0 +1,72 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.MongoDBOIDC = exports.OIDC_WORKFLOWS = exports.OIDC_VERSION = void 0;
+const error_1 = require("../../error");
+const auth_provider_1 = require("./auth_provider");
+const azure_machine_workflow_1 = require("./mongodb_oidc/azure_machine_workflow");
+const gcp_machine_workflow_1 = require("./mongodb_oidc/gcp_machine_workflow");
+const k8s_machine_workflow_1 = require("./mongodb_oidc/k8s_machine_workflow");
+const token_cache_1 = require("./mongodb_oidc/token_cache");
+const token_machine_workflow_1 = require("./mongodb_oidc/token_machine_workflow");
+/** Error when credentials are missing. */
+const MISSING_CREDENTIALS_ERROR = 'AuthContext must provide credentials.';
+/** The current version of OIDC implementation. */
+exports.OIDC_VERSION = 1;
+/** @internal */
+exports.OIDC_WORKFLOWS = new Map();
+exports.OIDC_WORKFLOWS.set('test', () => new token_machine_workflow_1.TokenMachineWorkflow(new token_cache_1.TokenCache()));
+exports.OIDC_WORKFLOWS.set('azure', () => new azure_machine_workflow_1.AzureMachineWorkflow(new token_cache_1.TokenCache()));
+exports.OIDC_WORKFLOWS.set('gcp', () => new gcp_machine_workflow_1.GCPMachineWorkflow(new token_cache_1.TokenCache()));
+exports.OIDC_WORKFLOWS.set('k8s', () => new k8s_machine_workflow_1.K8SMachineWorkflow(new token_cache_1.TokenCache()));
+/**
+ * OIDC auth provider.
+ */
+class MongoDBOIDC extends auth_provider_1.AuthProvider {
+    /**
+     * Instantiate the auth provider.
+     */
+    constructor(workflow) {
+        super();
+        if (!workflow) {
+            throw new error_1.MongoInvalidArgumentError('No workflow provided to the OIDC auth provider.');
+        }
+        this.workflow = workflow;
+    }
+    /**
+     * Authenticate using OIDC
+     */
+    async auth(authContext) {
+        const { connection, reauthenticating, response } = authContext;
+        if (response?.speculativeAuthenticate?.done) {
+            return;
+        }
+        const credentials = getCredentials(authContext);
+        if (reauthenticating) {
+            await this.workflow.reauthenticate(connection, credentials);
+        }
+        else {
+            await this.workflow.execute(connection, credentials, response);
+        }
+    }
+    /**
+     * Add the speculative auth for the initial handshake.
+     */
+    async prepare(handshakeDoc, authContext) {
+        const { connection } = authContext;
+        const credentials = getCredentials(authContext);
+        const result = await this.workflow.speculativeAuth(connection, credentials);
+        return { ...handshakeDoc, ...result };
+    }
+}
+exports.MongoDBOIDC = MongoDBOIDC;
+/**
+ * Get credentials from the auth context, throwing if they do not exist.
+ */
+function getCredentials(authContext) {
+    const { credentials } = authContext;
+    if (!credentials) {
+        throw new error_1.MongoMissingCredentialsError(MISSING_CREDENTIALS_ERROR);
+    }
+    return credentials;
+}
+//# sourceMappingURL=mongodb_oidc.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc.js.map b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc.js.map
new file mode 100644
index 0000000..d2f4beb
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"mongodb_oidc.js","sourceRoot":"","sources":["../../../src/cmap/auth/mongodb_oidc.ts"],"names":[],"mappings":";;;AACA,uCAAsF;AAGtF,mDAAiE;AAEjE,kFAA6E;AAC7E,8EAAyE;AACzE,8EAAyE;AACzE,4DAAwD;AACxD,kFAA6E;AAE7E,0CAA0C;AAC1C,MAAM,yBAAyB,GAAG,uCAAuC,CAAC;AA2E1E,kDAAkD;AACrC,QAAA,YAAY,GAAG,CAAC,CAAC;AA2B9B,gBAAgB;AACH,QAAA,cAAc,GAAyC,IAAI,GAAG,EAAE,CAAC;AAC9E,sBAAc,CAAC,GAAG,CAAC,MAAM,EAAE,GAAG,EAAE,CAAC,IAAI,6CAAoB,CAAC,IAAI,wBAAU,EAAE,CAAC,CAAC,CAAC;AAC7E,sBAAc,CAAC,GAAG,CAAC,OAAO,EAAE,GAAG,EAAE,CAAC,IAAI,6CAAoB,CAAC,IAAI,wBAAU,EAAE,CAAC,CAAC,CAAC;AAC9E,sBAAc,CAAC,GAAG,CAAC,KAAK,EAAE,GAAG,EAAE,CAAC,IAAI,yCAAkB,CAAC,IAAI,wBAAU,EAAE,CAAC,CAAC,CAAC;AAC1E,sBAAc,CAAC,GAAG,CAAC,KAAK,EAAE,GAAG,EAAE,CAAC,IAAI,yCAAkB,CAAC,IAAI,wBAAU,EAAE,CAAC,CAAC,CAAC;AAE1E;;GAEG;AACH,MAAa,WAAY,SAAQ,4BAAY;IAG3C;;OAEG;IACH,YAAY,QAAmB;QAC7B,KAAK,EAAE,CAAC;QACR,IAAI,CAAC,QAAQ,EAAE,CAAC;YACd,MAAM,IAAI,iCAAyB,CAAC,iDAAiD,CAAC,CAAC;QACzF,CAAC;QACD,IAAI,CAAC,QAAQ,GAAG,QAAQ,CAAC;IAC3B,CAAC;IAED;;OAEG;IACM,KAAK,CAAC,IAAI,CAAC,WAAwB;QAC1C,MAAM,EAAE,UAAU,EAAE,gBAAgB,EAAE,QAAQ,EAAE,GAAG,WAAW,CAAC;QAC/D,IAAI,QAAQ,EAAE,uBAAuB,EAAE,IAAI,EAAE,CAAC;YAC5C,OAAO;QACT,CAAC;QACD,MAAM,WAAW,GAAG,cAAc,CAAC,WAAW,CAAC,CAAC;QAChD,IAAI,gBAAgB,EAAE,CAAC;YACrB,MAAM,IAAI,CAAC,QAAQ,CAAC,cAAc,CAAC,UAAU,EAAE,WAAW,CAAC,CAAC;QAC9D,CAAC;aAAM,CAAC;YACN,MAAM,IAAI,CAAC,QAAQ,CAAC,OAAO,CAAC,UAAU,EAAE,WAAW,EAAE,QAAQ,CAAC,CAAC;QACjE,CAAC;IACH,CAAC;IAED;;OAEG;IACM,KAAK,CAAC,OAAO,CACpB,YAA+B,EAC/B,WAAwB;QAExB,MAAM,EAAE,UAAU,EAAE,GAAG,WAAW,CAAC;QACnC,MAAM,WAAW,GAAG,cAAc,CAAC,WAAW,CAAC,CAAC;QAChD,MAAM,MAAM,GAAG,MAAM,IAAI,CAAC,QAAQ,CAAC,eAAe,CAAC,UAAU,EAAE,WAAW,CAAC,CAAC;QAC5E,OAAO,EAAE,GAAG,YAAY,EAAE,GAAG,MAAM,EAAE,CAAC;IACxC,CAAC;CACF;AA1CD,kCA0CC;AAED;;GAEG;AACH,SAAS,cAAc,CAAC,WAAwB;IAC9C,MAAM,EAAE,WAAW,EAAE,GAAG,WAAW,CAAC;IACpC,IAAI,CAAC,WAAW,EAAE,CAAC;QACjB,MAAM,IAAI,oCAA4B,CAAC,yBAAyB,CAAC,CAAC;IACpE,CAAC;IACD,OAAO,WAAW,CAAC;AACrB,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/automated_callback_workflow.js b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/automated_callback_workflow.js
new file mode 100644
index 0000000..b93f8df
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/automated_callback_workflow.js
@@ -0,0 +1,78 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.AutomatedCallbackWorkflow = void 0;
+const error_1 = require("../../../error");
+const timeout_1 = require("../../../timeout");
+const mongodb_oidc_1 = require("../mongodb_oidc");
+const callback_workflow_1 = require("./callback_workflow");
+/**
+ * Class implementing behaviour for the non human callback workflow.
+ * @internal
+ */
+class AutomatedCallbackWorkflow extends callback_workflow_1.CallbackWorkflow {
+    /**
+     * Instantiate the human callback workflow.
+     */
+    constructor(cache, callback) {
+        super(cache, callback);
+    }
+    /**
+     * Execute the OIDC callback workflow.
+     */
+    async execute(connection, credentials) {
+        // If there is a cached access token, try to authenticate with it. If
+        // authentication fails with an Authentication error (18),
+        // invalidate the access token, fetch a new access token, and try
+        // to authenticate again.
+        // If the server fails for any other reason, do not clear the cache.
+        if (this.cache.hasAccessToken) {
+            const token = this.cache.getAccessToken();
+            try {
+                return await this.finishAuthentication(connection, credentials, token);
+            }
+            catch (error) {
+                if (error instanceof error_1.MongoError &&
+                    error.code === error_1.MONGODB_ERROR_CODES.AuthenticationFailed) {
+                    this.cache.removeAccessToken();
+                    return await this.execute(connection, credentials);
+                }
+                else {
+                    throw error;
+                }
+            }
+        }
+        const response = await this.fetchAccessToken(credentials);
+        this.cache.put(response);
+        connection.accessToken = response.accessToken;
+        await this.finishAuthentication(connection, credentials, response.accessToken);
+    }
+    /**
+     * Fetches the access token using the callback.
+     */
+    async fetchAccessToken(credentials) {
+        const controller = new AbortController();
+        const params = {
+            timeoutContext: controller.signal,
+            version: mongodb_oidc_1.OIDC_VERSION
+        };
+        if (credentials.username) {
+            params.username = credentials.username;
+        }
+        const timeout = timeout_1.Timeout.expires(callback_workflow_1.AUTOMATED_TIMEOUT_MS);
+        try {
+            return await Promise.race([this.executeAndValidateCallback(params), timeout]);
+        }
+        catch (error) {
+            if (timeout_1.TimeoutError.is(error)) {
+                controller.abort();
+                throw new error_1.MongoOIDCError(`OIDC callback timed out after ${callback_workflow_1.AUTOMATED_TIMEOUT_MS}ms.`);
+            }
+            throw error;
+        }
+        finally {
+            timeout.clear();
+        }
+    }
+}
+exports.AutomatedCallbackWorkflow = AutomatedCallbackWorkflow;
+//# sourceMappingURL=automated_callback_workflow.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/automated_callback_workflow.js.map b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/automated_callback_workflow.js.map
new file mode 100644
index 0000000..5ab64c4
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/automated_callback_workflow.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"automated_callback_workflow.js","sourceRoot":"","sources":["../../../../src/cmap/auth/mongodb_oidc/automated_callback_workflow.ts"],"names":[],"mappings":";;;AAAA,0CAAiF;AACjF,8CAAyD;AAGzD,kDAKyB;AACzB,2DAA6E;AAG7E;;;GAGG;AACH,MAAa,yBAA0B,SAAQ,oCAAgB;IAC7D;;OAEG;IACH,YAAY,KAAiB,EAAE,QAA8B;QAC3D,KAAK,CAAC,KAAK,EAAE,QAAQ,CAAC,CAAC;IACzB,CAAC;IAED;;OAEG;IACH,KAAK,CAAC,OAAO,CAAC,UAAsB,EAAE,WAA6B;QACjE,qEAAqE;QACrE,0DAA0D;QAC1D,iEAAiE;QACjE,yBAAyB;QACzB,oEAAoE;QACpE,IAAI,IAAI,CAAC,KAAK,CAAC,cAAc,EAAE,CAAC;YAC9B,MAAM,KAAK,GAAG,IAAI,CAAC,KAAK,CAAC,cAAc,EAAE,CAAC;YAC1C,IAAI,CAAC;gBACH,OAAO,MAAM,IAAI,CAAC,oBAAoB,CAAC,UAAU,EAAE,WAAW,EAAE,KAAK,CAAC,CAAC;YACzE,CAAC;YAAC,OAAO,KAAK,EAAE,CAAC;gBACf,IACE,KAAK,YAAY,kBAAU;oBAC3B,KAAK,CAAC,IAAI,KAAK,2BAAmB,CAAC,oBAAoB,EACvD,CAAC;oBACD,IAAI,CAAC,KAAK,CAAC,iBAAiB,EAAE,CAAC;oBAC/B,OAAO,MAAM,IAAI,CAAC,OAAO,CAAC,UAAU,EAAE,WAAW,CAAC,CAAC;gBACrD,CAAC;qBAAM,CAAC;oBACN,MAAM,KAAK,CAAC;gBACd,CAAC;YACH,CAAC;QACH,CAAC;QACD,MAAM,QAAQ,GAAG,MAAM,IAAI,CAAC,gBAAgB,CAAC,WAAW,CAAC,CAAC;QAC1D,IAAI,CAAC,KAAK,CAAC,GAAG,CAAC,QAAQ,CAAC,CAAC;QACzB,UAAU,CAAC,WAAW,GAAG,QAAQ,CAAC,WAAW,CAAC;QAC9C,MAAM,IAAI,CAAC,oBAAoB,CAAC,UAAU,EAAE,WAAW,EAAE,QAAQ,CAAC,WAAW,CAAC,CAAC;IACjF,CAAC;IAED;;OAEG;IACO,KAAK,CAAC,gBAAgB,CAAC,WAA6B;QAC5D,MAAM,UAAU,GAAG,IAAI,eAAe,EAAE,CAAC;QACzC,MAAM,MAAM,GAAuB;YACjC,cAAc,EAAE,UAAU,CAAC,MAAM;YACjC,OAAO,EAAE,2BAAY;SACtB,CAAC;QACF,IAAI,WAAW,CAAC,QAAQ,EAAE,CAAC;YACzB,MAAM,CAAC,QAAQ,GAAG,WAAW,CAAC,QAAQ,CAAC;QACzC,CAAC;QACD,MAAM,OAAO,GAAG,iBAAO,CAAC,OAAO,CAAC,wCAAoB,CAAC,CAAC;QACtD,IAAI,CAAC;YACH,OAAO,MAAM,OAAO,CAAC,IAAI,CAAC,CAAC,IAAI,CAAC,0BAA0B,CAAC,MAAM,CAAC,EAAE,OAAO,CAAC,CAAC,CAAC;QAChF,CAAC;QAAC,OAAO,KAAK,EAAE,CAAC;YACf,IAAI,sBAAY,CAAC,EAAE,CAAC,KAAK,CAAC,EAAE,CAAC;gBAC3B,UAAU,CAAC,KAAK,EAAE,CAAC;gBACnB,MAAM,IAAI,sBAAc,CAAC,iCAAiC,wCAAoB,KAAK,CAAC,CAAC;YACvF,CAAC;YACD,MAAM,KAAK,CAAC;QACd,CAAC;gBAAS,CAAC;YACT,OAAO,CAAC,KAAK,EAAE,CAAC;QAClB,CAAC;IACH,CAAC;CACF;AAhED,8DAgEC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/azure_machine_workflow.js b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/azure_machine_workflow.js
new file mode 100644
index 0000000..e820d41
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/azure_machine_workflow.js
@@ -0,0 +1,74 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.AzureMachineWorkflow = void 0;
+const azure_1 = require("../../../client-side-encryption/providers/azure");
+const error_1 = require("../../../error");
+const utils_1 = require("../../../utils");
+const machine_workflow_1 = require("./machine_workflow");
+/** Azure request headers. */
+const AZURE_HEADERS = Object.freeze({ Metadata: 'true', Accept: 'application/json' });
+/** Invalid endpoint result error. */
+const ENDPOINT_RESULT_ERROR = 'Azure endpoint did not return a value with only access_token and expires_in properties';
+/** Error for when the token audience is missing in the environment. */
+const TOKEN_RESOURCE_MISSING_ERROR = 'TOKEN_RESOURCE must be set in the auth mechanism properties when ENVIRONMENT is azure.';
+/**
+ * Device workflow implementation for Azure.
+ *
+ * @internal
+ */
+class AzureMachineWorkflow extends machine_workflow_1.MachineWorkflow {
+    /**
+     * Instantiate the machine workflow.
+     */
+    constructor(cache) {
+        super(cache);
+    }
+    /**
+     * Get the token from the environment.
+     */
+    async getToken(credentials) {
+        const tokenAudience = credentials?.mechanismProperties.TOKEN_RESOURCE;
+        const username = credentials?.username;
+        if (!tokenAudience) {
+            throw new error_1.MongoAzureError(TOKEN_RESOURCE_MISSING_ERROR);
+        }
+        const response = await getAzureTokenData(tokenAudience, username);
+        if (!isEndpointResultValid(response)) {
+            throw new error_1.MongoAzureError(ENDPOINT_RESULT_ERROR);
+        }
+        return response;
+    }
+}
+exports.AzureMachineWorkflow = AzureMachineWorkflow;
+/**
+ * Hit the Azure endpoint to get the token data.
+ */
+async function getAzureTokenData(tokenAudience, username) {
+    const url = new URL(azure_1.AZURE_BASE_URL);
+    (0, azure_1.addAzureParams)(url, tokenAudience, username);
+    const response = await (0, utils_1.get)(url, {
+        headers: AZURE_HEADERS
+    });
+    if (response.status !== 200) {
+        throw new error_1.MongoAzureError(`Status code ${response.status} returned from the Azure endpoint. Response body: ${response.body}`);
+    }
+    const result = JSON.parse(response.body);
+    return {
+        access_token: result.access_token,
+        expires_in: Number(result.expires_in)
+    };
+}
+/**
+ * Determines if a result returned from the endpoint is valid.
+ * This means the result is not nullish, contains the access_token required field
+ * and the expires_in required field.
+ */
+function isEndpointResultValid(token) {
+    if (token == null || typeof token !== 'object')
+        return false;
+    return ('access_token' in token &&
+        typeof token.access_token === 'string' &&
+        'expires_in' in token &&
+        typeof token.expires_in === 'number');
+}
+//# sourceMappingURL=azure_machine_workflow.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/azure_machine_workflow.js.map b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/azure_machine_workflow.js.map
new file mode 100644
index 0000000..16d66f6
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/azure_machine_workflow.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"azure_machine_workflow.js","sourceRoot":"","sources":["../../../../src/cmap/auth/mongodb_oidc/azure_machine_workflow.ts"],"names":[],"mappings":";;;AAAA,2EAAiG;AACjG,0CAAiD;AACjD,0CAAqC;AAErC,yDAAuE;AAGvE,6BAA6B;AAC7B,MAAM,aAAa,GAAG,MAAM,CAAC,MAAM,CAAC,EAAE,QAAQ,EAAE,MAAM,EAAE,MAAM,EAAE,kBAAkB,EAAE,CAAC,CAAC;AAEtF,qCAAqC;AACrC,MAAM,qBAAqB,GACzB,wFAAwF,CAAC;AAE3F,uEAAuE;AACvE,MAAM,4BAA4B,GAChC,wFAAwF,CAAC;AAE3F;;;;GAIG;AACH,MAAa,oBAAqB,SAAQ,kCAAe;IACvD;;OAEG;IACH,YAAY,KAAiB;QAC3B,KAAK,CAAC,KAAK,CAAC,CAAC;IACf,CAAC;IAED;;OAEG;IACH,KAAK,CAAC,QAAQ,CAAC,WAA8B;QAC3C,MAAM,aAAa,GAAG,WAAW,EAAE,mBAAmB,CAAC,cAAc,CAAC;QACtE,MAAM,QAAQ,GAAG,WAAW,EAAE,QAAQ,CAAC;QACvC,IAAI,CAAC,aAAa,EAAE,CAAC;YACnB,MAAM,IAAI,uBAAe,CAAC,4BAA4B,CAAC,CAAC;QAC1D,CAAC;QACD,MAAM,QAAQ,GAAG,MAAM,iBAAiB,CAAC,aAAa,EAAE,QAAQ,CAAC,CAAC;QAClE,IAAI,CAAC,qBAAqB,CAAC,QAAQ,CAAC,EAAE,CAAC;YACrC,MAAM,IAAI,uBAAe,CAAC,qBAAqB,CAAC,CAAC;QACnD,CAAC;QACD,OAAO,QAAQ,CAAC;IAClB,CAAC;CACF;AAvBD,oDAuBC;AAED;;GAEG;AACH,KAAK,UAAU,iBAAiB,CAAC,aAAqB,EAAE,QAAiB;IACvE,MAAM,GAAG,GAAG,IAAI,GAAG,CAAC,sBAAc,CAAC,CAAC;IACpC,IAAA,sBAAc,EAAC,GAAG,EAAE,aAAa,EAAE,QAAQ,CAAC,CAAC;IAC7C,MAAM,QAAQ,GAAG,MAAM,IAAA,WAAG,EAAC,GAAG,EAAE;QAC9B,OAAO,EAAE,aAAa;KACvB,CAAC,CAAC;IACH,IAAI,QAAQ,CAAC,MAAM,KAAK,GAAG,EAAE,CAAC;QAC5B,MAAM,IAAI,uBAAe,CACvB,eAAe,QAAQ,CAAC,MAAM,qDAAqD,QAAQ,CAAC,IAAI,EAAE,CACnG,CAAC;IACJ,CAAC;IACD,MAAM,MAAM,GAAG,IAAI,CAAC,KAAK,CAAC,QAAQ,CAAC,IAAI,CAAC,CAAC;IACzC,OAAO;QACL,YAAY,EAAE,MAAM,CAAC,YAAY;QACjC,UAAU,EAAE,MAAM,CAAC,MAAM,CAAC,UAAU,CAAC;KACtC,CAAC;AACJ,CAAC;AAED;;;;GAIG;AACH,SAAS,qBAAqB,CAC5B,KAAc;IAEd,IAAI,KAAK,IAAI,IAAI,IAAI,OAAO,KAAK,KAAK,QAAQ;QAAE,OAAO,KAAK,CAAC;IAC7D,OAAO,CACL,cAAc,IAAI,KAAK;QACvB,OAAO,KAAK,CAAC,YAAY,KAAK,QAAQ;QACtC,YAAY,IAAI,KAAK;QACrB,OAAO,KAAK,CAAC,UAAU,KAAK,QAAQ,CACrC,CAAC;AACJ,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/callback_workflow.js b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/callback_workflow.js
new file mode 100644
index 0000000..97c3eff
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/callback_workflow.js
@@ -0,0 +1,141 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.CallbackWorkflow = exports.AUTOMATED_TIMEOUT_MS = exports.HUMAN_TIMEOUT_MS = void 0;
+const promises_1 = require("timers/promises");
+const error_1 = require("../../../error");
+const utils_1 = require("../../../utils");
+const command_builders_1 = require("./command_builders");
+/** 5 minutes in milliseconds */
+exports.HUMAN_TIMEOUT_MS = 300000;
+/** 1 minute in milliseconds */
+exports.AUTOMATED_TIMEOUT_MS = 60000;
+/** Properties allowed on results of callbacks. */
+const RESULT_PROPERTIES = ['accessToken', 'expiresInSeconds', 'refreshToken'];
+/** Error message when the callback result is invalid. */
+const CALLBACK_RESULT_ERROR = 'User provided OIDC callbacks must return a valid object with an accessToken.';
+/** The time to throttle callback calls. */
+const THROTTLE_MS = 100;
+/**
+ * OIDC implementation of a callback based workflow.
+ * @internal
+ */
+class CallbackWorkflow {
+    /**
+     * Instantiate the callback workflow.
+     */
+    constructor(cache, callback) {
+        this.cache = cache;
+        this.callback = this.withLock(callback);
+        this.lastExecutionTime = Date.now() - THROTTLE_MS;
+    }
+    /**
+     * Get the document to add for speculative authentication. This also needs
+     * to add a db field from the credentials source.
+     */
+    async speculativeAuth(connection, credentials) {
+        // Check if the Client Cache has an access token.
+        // If it does, cache the access token in the Connection Cache and send a JwtStepRequest
+        // with the cached access token in the speculative authentication SASL payload.
+        if (this.cache.hasAccessToken) {
+            const accessToken = this.cache.getAccessToken();
+            connection.accessToken = accessToken;
+            const document = (0, command_builders_1.finishCommandDocument)(accessToken);
+            document.db = credentials.source;
+            return { speculativeAuthenticate: document };
+        }
+        return {};
+    }
+    /**
+     * Reauthenticate the callback workflow. For this we invalidated the access token
+     * in the cache and run the authentication steps again. No initial handshake needs
+     * to be sent.
+     */
+    async reauthenticate(connection, credentials) {
+        if (this.cache.hasAccessToken) {
+            // Reauthentication implies the token has expired.
+            if (connection.accessToken === this.cache.getAccessToken()) {
+                // If connection's access token is the same as the cache's, remove
+                // the token from the cache and connection.
+                this.cache.removeAccessToken();
+                delete connection.accessToken;
+            }
+            else {
+                // If the connection's access token is different from the cache's, set
+                // the cache's token on the connection and do not remove from the
+                // cache.
+                connection.accessToken = this.cache.getAccessToken();
+            }
+        }
+        await this.execute(connection, credentials);
+    }
+    /**
+     * Starts the callback authentication process. If there is a speculative
+     * authentication document from the initial handshake, then we will use that
+     * value to get the issuer, otherwise we will send the saslStart command.
+     */
+    async startAuthentication(connection, credentials, response) {
+        let result;
+        if (response?.speculativeAuthenticate) {
+            result = response.speculativeAuthenticate;
+        }
+        else {
+            result = await connection.command((0, utils_1.ns)(credentials.source), (0, command_builders_1.startCommandDocument)(credentials), undefined);
+        }
+        return result;
+    }
+    /**
+     * Finishes the callback authentication process.
+     */
+    async finishAuthentication(connection, credentials, token, conversationId) {
+        await connection.command((0, utils_1.ns)(credentials.source), (0, command_builders_1.finishCommandDocument)(token, conversationId), undefined);
+    }
+    /**
+     * Executes the callback and validates the output.
+     */
+    async executeAndValidateCallback(params) {
+        const result = await this.callback(params);
+        // Validate that the result returned by the callback is acceptable. If it is not
+        // we must clear the token result from the cache.
+        if (isCallbackResultInvalid(result)) {
+            throw new error_1.MongoMissingCredentialsError(CALLBACK_RESULT_ERROR);
+        }
+        return result;
+    }
+    /**
+     * Ensure the callback is only executed one at a time and throttles the calls
+     * to every 100ms.
+     */
+    withLock(callback) {
+        let lock = Promise.resolve();
+        return async (params) => {
+            // We do this to ensure that we would never return the result of the
+            // previous lock, only the current callback's value would get returned.
+            await lock;
+            lock = lock
+                .catch(() => null)
+                .then(async () => {
+                const difference = Date.now() - this.lastExecutionTime;
+                if (difference <= THROTTLE_MS) {
+                    await (0, promises_1.setTimeout)(THROTTLE_MS - difference, { signal: params.timeoutContext });
+                }
+                this.lastExecutionTime = Date.now();
+                return await callback(params);
+            });
+            return await lock;
+        };
+    }
+}
+exports.CallbackWorkflow = CallbackWorkflow;
+/**
+ * Determines if a result returned from a request or refresh callback
+ * function is invalid. This means the result is nullish, doesn't contain
+ * the accessToken required field, and does not contain extra fields.
+ */
+function isCallbackResultInvalid(tokenResult) {
+    if (tokenResult == null || typeof tokenResult !== 'object')
+        return true;
+    if (!('accessToken' in tokenResult))
+        return true;
+    return !Object.getOwnPropertyNames(tokenResult).every(prop => RESULT_PROPERTIES.includes(prop));
+}
+//# sourceMappingURL=callback_workflow.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/callback_workflow.js.map b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/callback_workflow.js.map
new file mode 100644
index 0000000..45013d1
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/callback_workflow.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"callback_workflow.js","sourceRoot":"","sources":["../../../../src/cmap/auth/mongodb_oidc/callback_workflow.ts"],"names":[],"mappings":";;;AAAA,8CAA6C;AAG7C,0CAA8D;AAC9D,0CAAoC;AASpC,yDAAiF;AAGjF,gCAAgC;AACnB,QAAA,gBAAgB,GAAG,MAAM,CAAC;AACvC,+BAA+B;AAClB,QAAA,oBAAoB,GAAG,KAAK,CAAC;AAE1C,kDAAkD;AAClD,MAAM,iBAAiB,GAAG,CAAC,aAAa,EAAE,kBAAkB,EAAE,cAAc,CAAC,CAAC;AAE9E,yDAAyD;AACzD,MAAM,qBAAqB,GACzB,8EAA8E,CAAC;AAEjF,2CAA2C;AAC3C,MAAM,WAAW,GAAG,GAAG,CAAC;AAExB;;;GAGG;AACH,MAAsB,gBAAgB;IAKpC;;OAEG;IACH,YAAY,KAAiB,EAAE,QAA8B;QAC3D,IAAI,CAAC,KAAK,GAAG,KAAK,CAAC;QACnB,IAAI,CAAC,QAAQ,GAAG,IAAI,CAAC,QAAQ,CAAC,QAAQ,CAAC,CAAC;QACxC,IAAI,CAAC,iBAAiB,GAAG,IAAI,CAAC,GAAG,EAAE,GAAG,WAAW,CAAC;IACpD,CAAC;IAED;;;OAGG;IACH,KAAK,CAAC,eAAe,CAAC,UAAsB,EAAE,WAA6B;QACzE,iDAAiD;QACjD,uFAAuF;QACvF,+EAA+E;QAC/E,IAAI,IAAI,CAAC,KAAK,CAAC,cAAc,EAAE,CAAC;YAC9B,MAAM,WAAW,GAAG,IAAI,CAAC,KAAK,CAAC,cAAc,EAAE,CAAC;YAChD,UAAU,CAAC,WAAW,GAAG,WAAW,CAAC;YACrC,MAAM,QAAQ,GAAG,IAAA,wCAAqB,EAAC,WAAW,CAAC,CAAC;YACpD,QAAQ,CAAC,EAAE,GAAG,WAAW,CAAC,MAAM,CAAC;YACjC,OAAO,EAAE,uBAAuB,EAAE,QAAQ,EAAE,CAAC;QAC/C,CAAC;QACD,OAAO,EAAE,CAAC;IACZ,CAAC;IAED;;;;OAIG;IACH,KAAK,CAAC,cAAc,CAAC,UAAsB,EAAE,WAA6B;QACxE,IAAI,IAAI,CAAC,KAAK,CAAC,cAAc,EAAE,CAAC;YAC9B,kDAAkD;YAClD,IAAI,UAAU,CAAC,WAAW,KAAK,IAAI,CAAC,KAAK,CAAC,cAAc,EAAE,EAAE,CAAC;gBAC3D,kEAAkE;gBAClE,2CAA2C;gBAC3C,IAAI,CAAC,KAAK,CAAC,iBAAiB,EAAE,CAAC;gBAC/B,OAAO,UAAU,CAAC,WAAW,CAAC;YAChC,CAAC;iBAAM,CAAC;gBACN,sEAAsE;gBACtE,iEAAiE;gBACjE,SAAS;gBACT,UAAU,CAAC,WAAW,GAAG,IAAI,CAAC,KAAK,CAAC,cAAc,EAAE,CAAC;YACvD,CAAC;QACH,CAAC;QACD,MAAM,IAAI,CAAC,OAAO,CAAC,UAAU,EAAE,WAAW,CAAC,CAAC;IAC9C,CAAC;IAWD;;;;OAIG;IACO,KAAK,CAAC,mBAAmB,CACjC,UAAsB,EACtB,WAA6B,EAC7B,QAAmB;QAEnB,IAAI,MAAM,CAAC;QACX,IAAI,QAAQ,EAAE,uBAAuB,EAAE,CAAC;YACtC,MAAM,GAAG,QAAQ,CAAC,uBAAuB,CAAC;QAC5C,CAAC;aAAM,CAAC;YACN,MAAM,GAAG,MAAM,UAAU,CAAC,OAAO,CAC/B,IAAA,UAAE,EAAC,WAAW,CAAC,MAAM,CAAC,EACtB,IAAA,uCAAoB,EAAC,WAAW,CAAC,EACjC,SAAS,CACV,CAAC;QACJ,CAAC;QACD,OAAO,MAAM,CAAC;IAChB,CAAC;IAED;;OAEG;IACO,KAAK,CAAC,oBAAoB,CAClC,UAAsB,EACtB,WAA6B,EAC7B,KAAa,EACb,cAAuB;QAEvB,MAAM,UAAU,CAAC,OAAO,CACtB,IAAA,UAAE,EAAC,WAAW,CAAC,MAAM,CAAC,EACtB,IAAA,wCAAqB,EAAC,KAAK,EAAE,cAAc,CAAC,EAC5C,SAAS,CACV,CAAC;IACJ,CAAC;IAED;;OAEG;IACO,KAAK,CAAC,0BAA0B,CAAC,MAA0B;QACnE,MAAM,MAAM,GAAG,MAAM,IAAI,CAAC,QAAQ,CAAC,MAAM,CAAC,CAAC;QAC3C,gFAAgF;QAChF,iDAAiD;QACjD,IAAI,uBAAuB,CAAC,MAAM,CAAC,EAAE,CAAC;YACpC,MAAM,IAAI,oCAA4B,CAAC,qBAAqB,CAAC,CAAC;QAChE,CAAC;QACD,OAAO,MAAM,CAAC;IAChB,CAAC;IAED;;;OAGG;IACO,QAAQ,CAAC,QAA8B;QAC/C,IAAI,IAAI,GAAiB,OAAO,CAAC,OAAO,EAAE,CAAC;QAC3C,OAAO,KAAK,EAAE,MAA0B,EAAyB,EAAE;YACjE,oEAAoE;YACpE,uEAAuE;YACvE,MAAM,IAAI,CAAC;YACX,IAAI,GAAG,IAAI;iBAER,KAAK,CAAC,GAAG,EAAE,CAAC,IAAI,CAAC;iBAEjB,IAAI,CAAC,KAAK,IAAI,EAAE;gBACf,MAAM,UAAU,GAAG,IAAI,CAAC,GAAG,EAAE,GAAG,IAAI,CAAC,iBAAiB,CAAC;gBACvD,IAAI,UAAU,IAAI,WAAW,EAAE,CAAC;oBAC9B,MAAM,IAAA,qBAAU,EAAC,WAAW,GAAG,UAAU,EAAE,EAAE,MAAM,EAAE,MAAM,CAAC,cAAc,EAAE,CAAC,CAAC;gBAChF,CAAC;gBACD,IAAI,CAAC,iBAAiB,GAAG,IAAI,CAAC,GAAG,EAAE,CAAC;gBACpC,OAAO,MAAM,QAAQ,CAAC,MAAM,CAAC,CAAC;YAChC,CAAC,CAAC,CAAC;YACL,OAAO,MAAM,IAAI,CAAC;QACpB,CAAC,CAAC;IACJ,CAAC;CACF;AA7ID,4CA6IC;AAED;;;;GAIG;AACH,SAAS,uBAAuB,CAAC,WAAoB;IACnD,IAAI,WAAW,IAAI,IAAI,IAAI,OAAO,WAAW,KAAK,QAAQ;QAAE,OAAO,IAAI,CAAC;IACxE,IAAI,CAAC,CAAC,aAAa,IAAI,WAAW,CAAC;QAAE,OAAO,IAAI,CAAC;IACjD,OAAO,CAAC,MAAM,CAAC,mBAAmB,CAAC,WAAW,CAAC,CAAC,KAAK,CAAC,IAAI,CAAC,EAAE,CAAC,iBAAiB,CAAC,QAAQ,CAAC,IAAI,CAAC,CAAC,CAAC;AAClG,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/command_builders.js b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/command_builders.js
new file mode 100644
index 0000000..2ea96d2
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/command_builders.js
@@ -0,0 +1,44 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.finishCommandDocument = finishCommandDocument;
+exports.startCommandDocument = startCommandDocument;
+const bson_1 = require("../../../bson");
+const providers_1 = require("../providers");
+/**
+ * Generate the finishing command document for authentication. Will be a
+ * saslStart or saslContinue depending on the presence of a conversation id.
+ */
+function finishCommandDocument(token, conversationId) {
+    if (conversationId != null) {
+        return {
+            saslContinue: 1,
+            conversationId: conversationId,
+            payload: new bson_1.Binary(bson_1.BSON.serialize({ jwt: token }))
+        };
+    }
+    // saslContinue requires a conversationId in the command to be valid so in this
+    // case the server allows "step two" to actually be a saslStart with the token
+    // as the jwt since the use of the cached value has no correlating conversating
+    // on the particular connection.
+    return {
+        saslStart: 1,
+        mechanism: providers_1.AuthMechanism.MONGODB_OIDC,
+        payload: new bson_1.Binary(bson_1.BSON.serialize({ jwt: token }))
+    };
+}
+/**
+ * Generate the saslStart command document.
+ */
+function startCommandDocument(credentials) {
+    const payload = {};
+    if (credentials.username) {
+        payload.n = credentials.username;
+    }
+    return {
+        saslStart: 1,
+        autoAuthorize: 1,
+        mechanism: providers_1.AuthMechanism.MONGODB_OIDC,
+        payload: new bson_1.Binary(bson_1.BSON.serialize(payload))
+    };
+}
+//# sourceMappingURL=command_builders.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/command_builders.js.map b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/command_builders.js.map
new file mode 100644
index 0000000..c2de30c
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/command_builders.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"command_builders.js","sourceRoot":"","sources":["../../../../src/cmap/auth/mongodb_oidc/command_builders.ts"],"names":[],"mappings":";;AAmBA,sDAiBC;AAKD,oDAWC;AApDD,wCAA4D;AAE5D,4CAA6C;AAa7C;;;GAGG;AACH,SAAgB,qBAAqB,CAAC,KAAa,EAAE,cAAuB;IAC1E,IAAI,cAAc,IAAI,IAAI,EAAE,CAAC;QAC3B,OAAO;YACL,YAAY,EAAE,CAAC;YACf,cAAc,EAAE,cAAc;YAC9B,OAAO,EAAE,IAAI,aAAM,CAAC,WAAI,CAAC,SAAS,CAAC,EAAE,GAAG,EAAE,KAAK,EAAE,CAAC,CAAC;SACpD,CAAC;IACJ,CAAC;IACD,+EAA+E;IAC/E,8EAA8E;IAC9E,+EAA+E;IAC/E,gCAAgC;IAChC,OAAO;QACL,SAAS,EAAE,CAAC;QACZ,SAAS,EAAE,yBAAa,CAAC,YAAY;QACrC,OAAO,EAAE,IAAI,aAAM,CAAC,WAAI,CAAC,SAAS,CAAC,EAAE,GAAG,EAAE,KAAK,EAAE,CAAC,CAAC;KACpD,CAAC;AACJ,CAAC;AAED;;GAEG;AACH,SAAgB,oBAAoB,CAAC,WAA6B;IAChE,MAAM,OAAO,GAAa,EAAE,CAAC;IAC7B,IAAI,WAAW,CAAC,QAAQ,EAAE,CAAC;QACzB,OAAO,CAAC,CAAC,GAAG,WAAW,CAAC,QAAQ,CAAC;IACnC,CAAC;IACD,OAAO;QACL,SAAS,EAAE,CAAC;QACZ,aAAa,EAAE,CAAC;QAChB,SAAS,EAAE,yBAAa,CAAC,YAAY;QACrC,OAAO,EAAE,IAAI,aAAM,CAAC,WAAI,CAAC,SAAS,CAAC,OAAO,CAAC,CAAC;KAC7C,CAAC;AACJ,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/gcp_machine_workflow.js b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/gcp_machine_workflow.js
new file mode 100644
index 0000000..3748675
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/gcp_machine_workflow.js
@@ -0,0 +1,46 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.GCPMachineWorkflow = void 0;
+const error_1 = require("../../../error");
+const utils_1 = require("../../../utils");
+const machine_workflow_1 = require("./machine_workflow");
+/** GCP base URL. */
+const GCP_BASE_URL = 'http://metadata/computeMetadata/v1/instance/service-accounts/default/identity';
+/** GCP request headers. */
+const GCP_HEADERS = Object.freeze({ 'Metadata-Flavor': 'Google' });
+/** Error for when the token audience is missing in the environment. */
+const TOKEN_RESOURCE_MISSING_ERROR = 'TOKEN_RESOURCE must be set in the auth mechanism properties when ENVIRONMENT is gcp.';
+class GCPMachineWorkflow extends machine_workflow_1.MachineWorkflow {
+    /**
+     * Instantiate the machine workflow.
+     */
+    constructor(cache) {
+        super(cache);
+    }
+    /**
+     * Get the token from the environment.
+     */
+    async getToken(credentials) {
+        const tokenAudience = credentials?.mechanismProperties.TOKEN_RESOURCE;
+        if (!tokenAudience) {
+            throw new error_1.MongoGCPError(TOKEN_RESOURCE_MISSING_ERROR);
+        }
+        return await getGcpTokenData(tokenAudience);
+    }
+}
+exports.GCPMachineWorkflow = GCPMachineWorkflow;
+/**
+ * Hit the GCP endpoint to get the token data.
+ */
+async function getGcpTokenData(tokenAudience) {
+    const url = new URL(GCP_BASE_URL);
+    url.searchParams.append('audience', tokenAudience);
+    const response = await (0, utils_1.get)(url, {
+        headers: GCP_HEADERS
+    });
+    if (response.status !== 200) {
+        throw new error_1.MongoGCPError(`Status code ${response.status} returned from the GCP endpoint. Response body: ${response.body}`);
+    }
+    return { access_token: response.body };
+}
+//# sourceMappingURL=gcp_machine_workflow.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/gcp_machine_workflow.js.map b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/gcp_machine_workflow.js.map
new file mode 100644
index 0000000..32a6295
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/gcp_machine_workflow.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"gcp_machine_workflow.js","sourceRoot":"","sources":["../../../../src/cmap/auth/mongodb_oidc/gcp_machine_workflow.ts"],"names":[],"mappings":";;;AAAA,0CAA+C;AAC/C,0CAAqC;AAErC,yDAAuE;AAGvE,oBAAoB;AACpB,MAAM,YAAY,GAChB,+EAA+E,CAAC;AAElF,2BAA2B;AAC3B,MAAM,WAAW,GAAG,MAAM,CAAC,MAAM,CAAC,EAAE,iBAAiB,EAAE,QAAQ,EAAE,CAAC,CAAC;AAEnE,uEAAuE;AACvE,MAAM,4BAA4B,GAChC,sFAAsF,CAAC;AAEzF,MAAa,kBAAmB,SAAQ,kCAAe;IACrD;;OAEG;IACH,YAAY,KAAiB;QAC3B,KAAK,CAAC,KAAK,CAAC,CAAC;IACf,CAAC;IAED;;OAEG;IACH,KAAK,CAAC,QAAQ,CAAC,WAA8B;QAC3C,MAAM,aAAa,GAAG,WAAW,EAAE,mBAAmB,CAAC,cAAc,CAAC;QACtE,IAAI,CAAC,aAAa,EAAE,CAAC;YACnB,MAAM,IAAI,qBAAa,CAAC,4BAA4B,CAAC,CAAC;QACxD,CAAC;QACD,OAAO,MAAM,eAAe,CAAC,aAAa,CAAC,CAAC;IAC9C,CAAC;CACF;AAlBD,gDAkBC;AAED;;GAEG;AACH,KAAK,UAAU,eAAe,CAAC,aAAqB;IAClD,MAAM,GAAG,GAAG,IAAI,GAAG,CAAC,YAAY,CAAC,CAAC;IAClC,GAAG,CAAC,YAAY,CAAC,MAAM,CAAC,UAAU,EAAE,aAAa,CAAC,CAAC;IACnD,MAAM,QAAQ,GAAG,MAAM,IAAA,WAAG,EAAC,GAAG,EAAE;QAC9B,OAAO,EAAE,WAAW;KACrB,CAAC,CAAC;IACH,IAAI,QAAQ,CAAC,MAAM,KAAK,GAAG,EAAE,CAAC;QAC5B,MAAM,IAAI,qBAAa,CACrB,eAAe,QAAQ,CAAC,MAAM,mDAAmD,QAAQ,CAAC,IAAI,EAAE,CACjG,CAAC;IACJ,CAAC;IACD,OAAO,EAAE,YAAY,EAAE,QAAQ,CAAC,IAAI,EAAE,CAAC;AACzC,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/human_callback_workflow.js b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/human_callback_workflow.js
new file mode 100644
index 0000000..dc0556e
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/human_callback_workflow.js
@@ -0,0 +1,122 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.HumanCallbackWorkflow = void 0;
+const bson_1 = require("../../../bson");
+const error_1 = require("../../../error");
+const timeout_1 = require("../../../timeout");
+const mongodb_oidc_1 = require("../mongodb_oidc");
+const callback_workflow_1 = require("./callback_workflow");
+/**
+ * Class implementing behaviour for the non human callback workflow.
+ * @internal
+ */
+class HumanCallbackWorkflow extends callback_workflow_1.CallbackWorkflow {
+    /**
+     * Instantiate the human callback workflow.
+     */
+    constructor(cache, callback) {
+        super(cache, callback);
+    }
+    /**
+     * Execute the OIDC human callback workflow.
+     */
+    async execute(connection, credentials) {
+        // Check if the Client Cache has an access token.
+        // If it does, cache the access token in the Connection Cache and perform a One-Step SASL conversation
+        // using the access token. If the server returns an Authentication error (18),
+        // invalidate the access token token from the Client Cache, clear the Connection Cache,
+        // and restart the authentication flow. Raise any other errors to the user. On success, exit the algorithm.
+        if (this.cache.hasAccessToken) {
+            const token = this.cache.getAccessToken();
+            connection.accessToken = token;
+            try {
+                return await this.finishAuthentication(connection, credentials, token);
+            }
+            catch (error) {
+                if (error instanceof error_1.MongoError &&
+                    error.code === error_1.MONGODB_ERROR_CODES.AuthenticationFailed) {
+                    this.cache.removeAccessToken();
+                    delete connection.accessToken;
+                    return await this.execute(connection, credentials);
+                }
+                else {
+                    throw error;
+                }
+            }
+        }
+        // Check if the Client Cache has a refresh token.
+        // If it does, call the OIDC Human Callback with the cached refresh token and IdpInfo to get a
+        // new access token. Cache the new access token in the Client Cache and Connection Cache.
+        // Perform a One-Step SASL conversation using the new access token. If the the server returns
+        // an Authentication error (18), clear the refresh token, invalidate the access token from the
+        // Client Cache, clear the Connection Cache, and restart the authentication flow. Raise any other
+        // errors to the user. On success, exit the algorithm.
+        if (this.cache.hasRefreshToken) {
+            const refreshToken = this.cache.getRefreshToken();
+            const result = await this.fetchAccessToken(this.cache.getIdpInfo(), credentials, refreshToken);
+            this.cache.put(result);
+            connection.accessToken = result.accessToken;
+            try {
+                return await this.finishAuthentication(connection, credentials, result.accessToken);
+            }
+            catch (error) {
+                if (error instanceof error_1.MongoError &&
+                    error.code === error_1.MONGODB_ERROR_CODES.AuthenticationFailed) {
+                    this.cache.removeRefreshToken();
+                    delete connection.accessToken;
+                    return await this.execute(connection, credentials);
+                }
+                else {
+                    throw error;
+                }
+            }
+        }
+        // Start a new Two-Step SASL conversation.
+        // Run a PrincipalStepRequest to get the IdpInfo.
+        // Call the OIDC Human Callback with the new IdpInfo to get a new access token and optional refresh
+        // token. Drivers MUST NOT pass a cached refresh token to the callback when performing
+        // a new Two-Step conversation. Cache the new IdpInfo and refresh token in the Client Cache and the
+        // new access token in the Client Cache and Connection Cache.
+        // Attempt to authenticate using a JwtStepRequest with the new access token. Raise any errors to the user.
+        const startResponse = await this.startAuthentication(connection, credentials);
+        const conversationId = startResponse.conversationId;
+        const idpInfo = bson_1.BSON.deserialize(startResponse.payload.buffer);
+        const callbackResponse = await this.fetchAccessToken(idpInfo, credentials);
+        this.cache.put(callbackResponse, idpInfo);
+        connection.accessToken = callbackResponse.accessToken;
+        return await this.finishAuthentication(connection, credentials, callbackResponse.accessToken, conversationId);
+    }
+    /**
+     * Fetches an access token using the callback.
+     */
+    async fetchAccessToken(idpInfo, credentials, refreshToken) {
+        const controller = new AbortController();
+        const params = {
+            timeoutContext: controller.signal,
+            version: mongodb_oidc_1.OIDC_VERSION,
+            idpInfo: idpInfo
+        };
+        if (credentials.username) {
+            params.username = credentials.username;
+        }
+        if (refreshToken) {
+            params.refreshToken = refreshToken;
+        }
+        const timeout = timeout_1.Timeout.expires(callback_workflow_1.HUMAN_TIMEOUT_MS);
+        try {
+            return await Promise.race([this.executeAndValidateCallback(params), timeout]);
+        }
+        catch (error) {
+            if (timeout_1.TimeoutError.is(error)) {
+                controller.abort();
+                throw new error_1.MongoOIDCError(`OIDC callback timed out after ${callback_workflow_1.HUMAN_TIMEOUT_MS}ms.`);
+            }
+            throw error;
+        }
+        finally {
+            timeout.clear();
+        }
+    }
+}
+exports.HumanCallbackWorkflow = HumanCallbackWorkflow;
+//# sourceMappingURL=human_callback_workflow.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/human_callback_workflow.js.map b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/human_callback_workflow.js.map
new file mode 100644
index 0000000..4e64bc6
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/human_callback_workflow.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"human_callback_workflow.js","sourceRoot":"","sources":["../../../../src/cmap/auth/mongodb_oidc/human_callback_workflow.ts"],"names":[],"mappings":";;;AAAA,wCAAqC;AACrC,0CAAiF;AACjF,8CAAyD;AAGzD,kDAMyB;AACzB,2DAAyE;AAGzE;;;GAGG;AACH,MAAa,qBAAsB,SAAQ,oCAAgB;IACzD;;OAEG;IACH,YAAY,KAAiB,EAAE,QAA8B;QAC3D,KAAK,CAAC,KAAK,EAAE,QAAQ,CAAC,CAAC;IACzB,CAAC;IAED;;OAEG;IACH,KAAK,CAAC,OAAO,CAAC,UAAsB,EAAE,WAA6B;QACjE,iDAAiD;QACjD,sGAAsG;QACtG,8EAA8E;QAC9E,uFAAuF;QACvF,2GAA2G;QAC3G,IAAI,IAAI,CAAC,KAAK,CAAC,cAAc,EAAE,CAAC;YAC9B,MAAM,KAAK,GAAG,IAAI,CAAC,KAAK,CAAC,cAAc,EAAE,CAAC;YAC1C,UAAU,CAAC,WAAW,GAAG,KAAK,CAAC;YAC/B,IAAI,CAAC;gBACH,OAAO,MAAM,IAAI,CAAC,oBAAoB,CAAC,UAAU,EAAE,WAAW,EAAE,KAAK,CAAC,CAAC;YACzE,CAAC;YAAC,OAAO,KAAK,EAAE,CAAC;gBACf,IACE,KAAK,YAAY,kBAAU;oBAC3B,KAAK,CAAC,IAAI,KAAK,2BAAmB,CAAC,oBAAoB,EACvD,CAAC;oBACD,IAAI,CAAC,KAAK,CAAC,iBAAiB,EAAE,CAAC;oBAC/B,OAAO,UAAU,CAAC,WAAW,CAAC;oBAC9B,OAAO,MAAM,IAAI,CAAC,OAAO,CAAC,UAAU,EAAE,WAAW,CAAC,CAAC;gBACrD,CAAC;qBAAM,CAAC;oBACN,MAAM,KAAK,CAAC;gBACd,CAAC;YACH,CAAC;QACH,CAAC;QACD,iDAAiD;QACjD,8FAA8F;QAC9F,yFAAyF;QACzF,6FAA6F;QAC7F,8FAA8F;QAC9F,iGAAiG;QACjG,sDAAsD;QACtD,IAAI,IAAI,CAAC,KAAK,CAAC,eAAe,EAAE,CAAC;YAC/B,MAAM,YAAY,GAAG,IAAI,CAAC,KAAK,CAAC,eAAe,EAAE,CAAC;YAClD,MAAM,MAAM,GAAG,MAAM,IAAI,CAAC,gBAAgB,CACxC,IAAI,CAAC,KAAK,CAAC,UAAU,EAAE,EACvB,WAAW,EACX,YAAY,CACb,CAAC;YACF,IAAI,CAAC,KAAK,CAAC,GAAG,CAAC,MAAM,CAAC,CAAC;YACvB,UAAU,CAAC,WAAW,GAAG,MAAM,CAAC,WAAW,CAAC;YAC5C,IAAI,CAAC;gBACH,OAAO,MAAM,IAAI,CAAC,oBAAoB,CAAC,UAAU,EAAE,WAAW,EAAE,MAAM,CAAC,WAAW,CAAC,CAAC;YACtF,CAAC;YAAC,OAAO,KAAK,EAAE,CAAC;gBACf,IACE,KAAK,YAAY,kBAAU;oBAC3B,KAAK,CAAC,IAAI,KAAK,2BAAmB,CAAC,oBAAoB,EACvD,CAAC;oBACD,IAAI,CAAC,KAAK,CAAC,kBAAkB,EAAE,CAAC;oBAChC,OAAO,UAAU,CAAC,WAAW,CAAC;oBAC9B,OAAO,MAAM,IAAI,CAAC,OAAO,CAAC,UAAU,EAAE,WAAW,CAAC,CAAC;gBACrD,CAAC;qBAAM,CAAC;oBACN,MAAM,KAAK,CAAC;gBACd,CAAC;YACH,CAAC;QACH,CAAC;QAED,0CAA0C;QAC1C,iDAAiD;QACjD,mGAAmG;QACnG,sFAAsF;QACtF,mGAAmG;QACnG,6DAA6D;QAC7D,0GAA0G;QAC1G,MAAM,aAAa,GAAG,MAAM,IAAI,CAAC,mBAAmB,CAAC,UAAU,EAAE,WAAW,CAAC,CAAC;QAC9E,MAAM,cAAc,GAAG,aAAa,CAAC,cAAc,CAAC;QACpD,MAAM,OAAO,GAAG,WAAI,CAAC,WAAW,CAAC,aAAa,CAAC,OAAO,CAAC,MAAM,CAAY,CAAC;QAC1E,MAAM,gBAAgB,GAAG,MAAM,IAAI,CAAC,gBAAgB,CAAC,OAAO,EAAE,WAAW,CAAC,CAAC;QAC3E,IAAI,CAAC,KAAK,CAAC,GAAG,CAAC,gBAAgB,EAAE,OAAO,CAAC,CAAC;QAC1C,UAAU,CAAC,WAAW,GAAG,gBAAgB,CAAC,WAAW,CAAC;QACtD,OAAO,MAAM,IAAI,CAAC,oBAAoB,CACpC,UAAU,EACV,WAAW,EACX,gBAAgB,CAAC,WAAW,EAC5B,cAAc,CACf,CAAC;IACJ,CAAC;IAED;;OAEG;IACK,KAAK,CAAC,gBAAgB,CAC5B,OAAgB,EAChB,WAA6B,EAC7B,YAAqB;QAErB,MAAM,UAAU,GAAG,IAAI,eAAe,EAAE,CAAC;QACzC,MAAM,MAAM,GAAuB;YACjC,cAAc,EAAE,UAAU,CAAC,MAAM;YACjC,OAAO,EAAE,2BAAY;YACrB,OAAO,EAAE,OAAO;SACjB,CAAC;QACF,IAAI,WAAW,CAAC,QAAQ,EAAE,CAAC;YACzB,MAAM,CAAC,QAAQ,GAAG,WAAW,CAAC,QAAQ,CAAC;QACzC,CAAC;QACD,IAAI,YAAY,EAAE,CAAC;YACjB,MAAM,CAAC,YAAY,GAAG,YAAY,CAAC;QACrC,CAAC;QACD,MAAM,OAAO,GAAG,iBAAO,CAAC,OAAO,CAAC,oCAAgB,CAAC,CAAC;QAClD,IAAI,CAAC;YACH,OAAO,MAAM,OAAO,CAAC,IAAI,CAAC,CAAC,IAAI,CAAC,0BAA0B,CAAC,MAAM,CAAC,EAAE,OAAO,CAAC,CAAC,CAAC;QAChF,CAAC;QAAC,OAAO,KAAK,EAAE,CAAC;YACf,IAAI,sBAAY,CAAC,EAAE,CAAC,KAAK,CAAC,EAAE,CAAC;gBAC3B,UAAU,CAAC,KAAK,EAAE,CAAC;gBACnB,MAAM,IAAI,sBAAc,CAAC,iCAAiC,oCAAgB,KAAK,CAAC,CAAC;YACnF,CAAC;YACD,MAAM,KAAK,CAAC;QACd,CAAC;gBAAS,CAAC;YACT,OAAO,CAAC,KAAK,EAAE,CAAC;QAClB,CAAC;IACH,CAAC;CACF;AAzHD,sDAyHC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/k8s_machine_workflow.js b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/k8s_machine_workflow.js
new file mode 100644
index 0000000..8158685
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/k8s_machine_workflow.js
@@ -0,0 +1,38 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.K8SMachineWorkflow = void 0;
+const promises_1 = require("fs/promises");
+const machine_workflow_1 = require("./machine_workflow");
+/** The fallback file name */
+const FALLBACK_FILENAME = '/var/run/secrets/kubernetes.io/serviceaccount/token';
+/** The azure environment variable for the file name. */
+const AZURE_FILENAME = 'AZURE_FEDERATED_TOKEN_FILE';
+/** The AWS environment variable for the file name. */
+const AWS_FILENAME = 'AWS_WEB_IDENTITY_TOKEN_FILE';
+class K8SMachineWorkflow extends machine_workflow_1.MachineWorkflow {
+    /**
+     * Instantiate the machine workflow.
+     */
+    constructor(cache) {
+        super(cache);
+    }
+    /**
+     * Get the token from the environment.
+     */
+    async getToken() {
+        let filename;
+        if (process.env[AZURE_FILENAME]) {
+            filename = process.env[AZURE_FILENAME];
+        }
+        else if (process.env[AWS_FILENAME]) {
+            filename = process.env[AWS_FILENAME];
+        }
+        else {
+            filename = FALLBACK_FILENAME;
+        }
+        const token = await (0, promises_1.readFile)(filename, 'utf8');
+        return { access_token: token };
+    }
+}
+exports.K8SMachineWorkflow = K8SMachineWorkflow;
+//# sourceMappingURL=k8s_machine_workflow.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/k8s_machine_workflow.js.map b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/k8s_machine_workflow.js.map
new file mode 100644
index 0000000..9df9837
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/k8s_machine_workflow.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"k8s_machine_workflow.js","sourceRoot":"","sources":["../../../../src/cmap/auth/mongodb_oidc/k8s_machine_workflow.ts"],"names":[],"mappings":";;;AAAA,0CAAuC;AAEvC,yDAAuE;AAGvE,6BAA6B;AAC7B,MAAM,iBAAiB,GAAG,qDAAqD,CAAC;AAEhF,wDAAwD;AACxD,MAAM,cAAc,GAAG,4BAA4B,CAAC;AAEpD,sDAAsD;AACtD,MAAM,YAAY,GAAG,6BAA6B,CAAC;AAEnD,MAAa,kBAAmB,SAAQ,kCAAe;IACrD;;OAEG;IACH,YAAY,KAAiB;QAC3B,KAAK,CAAC,KAAK,CAAC,CAAC;IACf,CAAC;IAED;;OAEG;IACH,KAAK,CAAC,QAAQ;QACZ,IAAI,QAAgB,CAAC;QACrB,IAAI,OAAO,CAAC,GAAG,CAAC,cAAc,CAAC,EAAE,CAAC;YAChC,QAAQ,GAAG,OAAO,CAAC,GAAG,CAAC,cAAc,CAAC,CAAC;QACzC,CAAC;aAAM,IAAI,OAAO,CAAC,GAAG,CAAC,YAAY,CAAC,EAAE,CAAC;YACrC,QAAQ,GAAG,OAAO,CAAC,GAAG,CAAC,YAAY,CAAC,CAAC;QACvC,CAAC;aAAM,CAAC;YACN,QAAQ,GAAG,iBAAiB,CAAC;QAC/B,CAAC;QACD,MAAM,KAAK,GAAG,MAAM,IAAA,mBAAQ,EAAC,QAAQ,EAAE,MAAM,CAAC,CAAC;QAC/C,OAAO,EAAE,YAAY,EAAE,KAAK,EAAE,CAAC;IACjC,CAAC;CACF;AAvBD,gDAuBC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/machine_workflow.js b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/machine_workflow.js
new file mode 100644
index 0000000..3d8e3a8
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/machine_workflow.js
@@ -0,0 +1,105 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.MachineWorkflow = void 0;
+const promises_1 = require("timers/promises");
+const utils_1 = require("../../../utils");
+const command_builders_1 = require("./command_builders");
+/** The time to throttle callback calls. */
+const THROTTLE_MS = 100;
+/**
+ * Common behaviour for OIDC machine workflows.
+ * @internal
+ */
+class MachineWorkflow {
+    /**
+     * Instantiate the machine workflow.
+     */
+    constructor(cache) {
+        this.cache = cache;
+        this.callback = this.withLock(this.getToken.bind(this));
+        this.lastExecutionTime = Date.now() - THROTTLE_MS;
+    }
+    /**
+     * Execute the workflow. Gets the token from the subclass implementation.
+     */
+    async execute(connection, credentials) {
+        const token = await this.getTokenFromCacheOrEnv(connection, credentials);
+        const command = (0, command_builders_1.finishCommandDocument)(token);
+        await connection.command((0, utils_1.ns)(credentials.source), command, undefined);
+    }
+    /**
+     * Reauthenticate on a machine workflow just grabs the token again since the server
+     * has said the current access token is invalid or expired.
+     */
+    async reauthenticate(connection, credentials) {
+        if (this.cache.hasAccessToken) {
+            // Reauthentication implies the token has expired.
+            if (connection.accessToken === this.cache.getAccessToken()) {
+                // If connection's access token is the same as the cache's, remove
+                // the token from the cache and connection.
+                this.cache.removeAccessToken();
+                delete connection.accessToken;
+            }
+            else {
+                // If the connection's access token is different from the cache's, set
+                // the cache's token on the connection and do not remove from the
+                // cache.
+                connection.accessToken = this.cache.getAccessToken();
+            }
+        }
+        await this.execute(connection, credentials);
+    }
+    /**
+     * Get the document to add for speculative authentication.
+     */
+    async speculativeAuth(connection, credentials) {
+        // The spec states only cached access tokens can use speculative auth.
+        if (!this.cache.hasAccessToken) {
+            return {};
+        }
+        const token = await this.getTokenFromCacheOrEnv(connection, credentials);
+        const document = (0, command_builders_1.finishCommandDocument)(token);
+        document.db = credentials.source;
+        return { speculativeAuthenticate: document };
+    }
+    /**
+     * Get the token from the cache or environment.
+     */
+    async getTokenFromCacheOrEnv(connection, credentials) {
+        if (this.cache.hasAccessToken) {
+            return this.cache.getAccessToken();
+        }
+        else {
+            const token = await this.callback(credentials);
+            this.cache.put({ accessToken: token.access_token, expiresInSeconds: token.expires_in });
+            // Put the access token on the connection as well.
+            connection.accessToken = token.access_token;
+            return token.access_token;
+        }
+    }
+    /**
+     * Ensure the callback is only executed one at a time, and throttled to
+     * only once per 100ms.
+     */
+    withLock(callback) {
+        let lock = Promise.resolve();
+        return async (credentials) => {
+            // We do this to ensure that we would never return the result of the
+            // previous lock, only the current callback's value would get returned.
+            await lock;
+            lock = lock
+                .catch(() => null)
+                .then(async () => {
+                const difference = Date.now() - this.lastExecutionTime;
+                if (difference <= THROTTLE_MS) {
+                    await (0, promises_1.setTimeout)(THROTTLE_MS - difference);
+                }
+                this.lastExecutionTime = Date.now();
+                return await callback(credentials);
+            });
+            return await lock;
+        };
+    }
+}
+exports.MachineWorkflow = MachineWorkflow;
+//# sourceMappingURL=machine_workflow.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/machine_workflow.js.map b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/machine_workflow.js.map
new file mode 100644
index 0000000..c3be5b5
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/machine_workflow.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"machine_workflow.js","sourceRoot":"","sources":["../../../../src/cmap/auth/mongodb_oidc/machine_workflow.ts"],"names":[],"mappings":";;;AAAA,8CAA6C;AAG7C,0CAAoC;AAIpC,yDAA2D;AAG3D,2CAA2C;AAC3C,MAAM,WAAW,GAAG,GAAG,CAAC;AAcxB;;;GAGG;AACH,MAAsB,eAAe;IAKnC;;OAEG;IACH,YAAY,KAAiB;QAC3B,IAAI,CAAC,KAAK,GAAG,KAAK,CAAC;QACnB,IAAI,CAAC,QAAQ,GAAG,IAAI,CAAC,QAAQ,CAAC,IAAI,CAAC,QAAQ,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC,CAAC;QACxD,IAAI,CAAC,iBAAiB,GAAG,IAAI,CAAC,GAAG,EAAE,GAAG,WAAW,CAAC;IACpD,CAAC;IAED;;OAEG;IACH,KAAK,CAAC,OAAO,CAAC,UAAsB,EAAE,WAA6B;QACjE,MAAM,KAAK,GAAG,MAAM,IAAI,CAAC,sBAAsB,CAAC,UAAU,EAAE,WAAW,CAAC,CAAC;QACzE,MAAM,OAAO,GAAG,IAAA,wCAAqB,EAAC,KAAK,CAAC,CAAC;QAC7C,MAAM,UAAU,CAAC,OAAO,CAAC,IAAA,UAAE,EAAC,WAAW,CAAC,MAAM,CAAC,EAAE,OAAO,EAAE,SAAS,CAAC,CAAC;IACvE,CAAC;IAED;;;OAGG;IACH,KAAK,CAAC,cAAc,CAAC,UAAsB,EAAE,WAA6B;QACxE,IAAI,IAAI,CAAC,KAAK,CAAC,cAAc,EAAE,CAAC;YAC9B,kDAAkD;YAClD,IAAI,UAAU,CAAC,WAAW,KAAK,IAAI,CAAC,KAAK,CAAC,cAAc,EAAE,EAAE,CAAC;gBAC3D,kEAAkE;gBAClE,2CAA2C;gBAC3C,IAAI,CAAC,KAAK,CAAC,iBAAiB,EAAE,CAAC;gBAC/B,OAAO,UAAU,CAAC,WAAW,CAAC;YAChC,CAAC;iBAAM,CAAC;gBACN,sEAAsE;gBACtE,iEAAiE;gBACjE,SAAS;gBACT,UAAU,CAAC,WAAW,GAAG,IAAI,CAAC,KAAK,CAAC,cAAc,EAAE,CAAC;YACvD,CAAC;QACH,CAAC;QACD,MAAM,IAAI,CAAC,OAAO,CAAC,UAAU,EAAE,WAAW,CAAC,CAAC;IAC9C,CAAC;IAED;;OAEG;IACH,KAAK,CAAC,eAAe,CAAC,UAAsB,EAAE,WAA6B;QACzE,sEAAsE;QACtE,IAAI,CAAC,IAAI,CAAC,KAAK,CAAC,cAAc,EAAE,CAAC;YAC/B,OAAO,EAAE,CAAC;QACZ,CAAC;QACD,MAAM,KAAK,GAAG,MAAM,IAAI,CAAC,sBAAsB,CAAC,UAAU,EAAE,WAAW,CAAC,CAAC;QACzE,MAAM,QAAQ,GAAG,IAAA,wCAAqB,EAAC,KAAK,CAAC,CAAC;QAC9C,QAAQ,CAAC,EAAE,GAAG,WAAW,CAAC,MAAM,CAAC;QACjC,OAAO,EAAE,uBAAuB,EAAE,QAAQ,EAAE,CAAC;IAC/C,CAAC;IAED;;OAEG;IACK,KAAK,CAAC,sBAAsB,CAClC,UAAsB,EACtB,WAA6B;QAE7B,IAAI,IAAI,CAAC,KAAK,CAAC,cAAc,EAAE,CAAC;YAC9B,OAAO,IAAI,CAAC,KAAK,CAAC,cAAc,EAAE,CAAC;QACrC,CAAC;aAAM,CAAC;YACN,MAAM,KAAK,GAAG,MAAM,IAAI,CAAC,QAAQ,CAAC,WAAW,CAAC,CAAC;YAC/C,IAAI,CAAC,KAAK,CAAC,GAAG,CAAC,EAAE,WAAW,EAAE,KAAK,CAAC,YAAY,EAAE,gBAAgB,EAAE,KAAK,CAAC,UAAU,EAAE,CAAC,CAAC;YACxF,kDAAkD;YAClD,UAAU,CAAC,WAAW,GAAG,KAAK,CAAC,YAAY,CAAC;YAC5C,OAAO,KAAK,CAAC,YAAY,CAAC;QAC5B,CAAC;IACH,CAAC;IAED;;;OAGG;IACK,QAAQ,CAAC,QAA2B;QAC1C,IAAI,IAAI,GAAiB,OAAO,CAAC,OAAO,EAAE,CAAC;QAC3C,OAAO,KAAK,EAAE,WAA6B,EAAwB,EAAE;YACnE,oEAAoE;YACpE,uEAAuE;YACvE,MAAM,IAAI,CAAC;YACX,IAAI,GAAG,IAAI;iBAER,KAAK,CAAC,GAAG,EAAE,CAAC,IAAI,CAAC;iBAEjB,IAAI,CAAC,KAAK,IAAI,EAAE;gBACf,MAAM,UAAU,GAAG,IAAI,CAAC,GAAG,EAAE,GAAG,IAAI,CAAC,iBAAiB,CAAC;gBACvD,IAAI,UAAU,IAAI,WAAW,EAAE,CAAC;oBAC9B,MAAM,IAAA,qBAAU,EAAC,WAAW,GAAG,UAAU,CAAC,CAAC;gBAC7C,CAAC;gBACD,IAAI,CAAC,iBAAiB,GAAG,IAAI,CAAC,GAAG,EAAE,CAAC;gBACpC,OAAO,MAAM,QAAQ,CAAC,WAAW,CAAC,CAAC;YACrC,CAAC,CAAC,CAAC;YACL,OAAO,MAAM,IAAI,CAAC;QACpB,CAAC,CAAC;IACJ,CAAC;CAMF;AA3GD,0CA2GC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/token_cache.js b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/token_cache.js
new file mode 100644
index 0000000..dcf061c
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/token_cache.js
@@ -0,0 +1,52 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.TokenCache = void 0;
+const error_1 = require("../../../error");
+class MongoOIDCError extends error_1.MongoDriverError {
+}
+/** @internal */
+class TokenCache {
+    get hasAccessToken() {
+        return !!this.accessToken;
+    }
+    get hasRefreshToken() {
+        return !!this.refreshToken;
+    }
+    get hasIdpInfo() {
+        return !!this.idpInfo;
+    }
+    getAccessToken() {
+        if (!this.accessToken) {
+            throw new MongoOIDCError('Attempted to get an access token when none exists.');
+        }
+        return this.accessToken;
+    }
+    getRefreshToken() {
+        if (!this.refreshToken) {
+            throw new MongoOIDCError('Attempted to get a refresh token when none exists.');
+        }
+        return this.refreshToken;
+    }
+    getIdpInfo() {
+        if (!this.idpInfo) {
+            throw new MongoOIDCError('Attempted to get IDP information when none exists.');
+        }
+        return this.idpInfo;
+    }
+    put(response, idpInfo) {
+        this.accessToken = response.accessToken;
+        this.refreshToken = response.refreshToken;
+        this.expiresInSeconds = response.expiresInSeconds;
+        if (idpInfo) {
+            this.idpInfo = idpInfo;
+        }
+    }
+    removeAccessToken() {
+        this.accessToken = undefined;
+    }
+    removeRefreshToken() {
+        this.refreshToken = undefined;
+    }
+}
+exports.TokenCache = TokenCache;
+//# sourceMappingURL=token_cache.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/token_cache.js.map b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/token_cache.js.map
new file mode 100644
index 0000000..cc6e98c
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/token_cache.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"token_cache.js","sourceRoot":"","sources":["../../../../src/cmap/auth/mongodb_oidc/token_cache.ts"],"names":[],"mappings":";;;AAAA,0CAAkD;AAGlD,MAAM,cAAe,SAAQ,wBAAgB;CAAG;AAEhD,gBAAgB;AAChB,MAAa,UAAU;IAMrB,IAAI,cAAc;QAChB,OAAO,CAAC,CAAC,IAAI,CAAC,WAAW,CAAC;IAC5B,CAAC;IAED,IAAI,eAAe;QACjB,OAAO,CAAC,CAAC,IAAI,CAAC,YAAY,CAAC;IAC7B,CAAC;IAED,IAAI,UAAU;QACZ,OAAO,CAAC,CAAC,IAAI,CAAC,OAAO,CAAC;IACxB,CAAC;IAED,cAAc;QACZ,IAAI,CAAC,IAAI,CAAC,WAAW,EAAE,CAAC;YACtB,MAAM,IAAI,cAAc,CAAC,oDAAoD,CAAC,CAAC;QACjF,CAAC;QACD,OAAO,IAAI,CAAC,WAAW,CAAC;IAC1B,CAAC;IAED,eAAe;QACb,IAAI,CAAC,IAAI,CAAC,YAAY,EAAE,CAAC;YACvB,MAAM,IAAI,cAAc,CAAC,oDAAoD,CAAC,CAAC;QACjF,CAAC;QACD,OAAO,IAAI,CAAC,YAAY,CAAC;IAC3B,CAAC;IAED,UAAU;QACR,IAAI,CAAC,IAAI,CAAC,OAAO,EAAE,CAAC;YAClB,MAAM,IAAI,cAAc,CAAC,oDAAoD,CAAC,CAAC;QACjF,CAAC;QACD,OAAO,IAAI,CAAC,OAAO,CAAC;IACtB,CAAC;IAED,GAAG,CAAC,QAAsB,EAAE,OAAiB;QAC3C,IAAI,CAAC,WAAW,GAAG,QAAQ,CAAC,WAAW,CAAC;QACxC,IAAI,CAAC,YAAY,GAAG,QAAQ,CAAC,YAAY,CAAC;QAC1C,IAAI,CAAC,gBAAgB,GAAG,QAAQ,CAAC,gBAAgB,CAAC;QAClD,IAAI,OAAO,EAAE,CAAC;YACZ,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACzB,CAAC;IACH,CAAC;IAED,iBAAiB;QACf,IAAI,CAAC,WAAW,GAAG,SAAS,CAAC;IAC/B,CAAC;IAED,kBAAkB;QAChB,IAAI,CAAC,YAAY,GAAG,SAAS,CAAC;IAChC,CAAC;CACF;AAvDD,gCAuDC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/token_machine_workflow.js b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/token_machine_workflow.js
new file mode 100644
index 0000000..f20ba0a
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/token_machine_workflow.js
@@ -0,0 +1,34 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.TokenMachineWorkflow = void 0;
+const fs = require("fs");
+const error_1 = require("../../../error");
+const machine_workflow_1 = require("./machine_workflow");
+/** Error for when the token is missing in the environment. */
+const TOKEN_MISSING_ERROR = 'OIDC_TOKEN_FILE must be set in the environment.';
+/**
+ * Device workflow implementation for AWS.
+ *
+ * @internal
+ */
+class TokenMachineWorkflow extends machine_workflow_1.MachineWorkflow {
+    /**
+     * Instantiate the machine workflow.
+     */
+    constructor(cache) {
+        super(cache);
+    }
+    /**
+     * Get the token from the environment.
+     */
+    async getToken() {
+        const tokenFile = process.env.OIDC_TOKEN_FILE;
+        if (!tokenFile) {
+            throw new error_1.MongoAWSError(TOKEN_MISSING_ERROR);
+        }
+        const token = await fs.promises.readFile(tokenFile, 'utf8');
+        return { access_token: token };
+    }
+}
+exports.TokenMachineWorkflow = TokenMachineWorkflow;
+//# sourceMappingURL=token_machine_workflow.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/token_machine_workflow.js.map b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/token_machine_workflow.js.map
new file mode 100644
index 0000000..2a25feb
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/token_machine_workflow.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"token_machine_workflow.js","sourceRoot":"","sources":["../../../../src/cmap/auth/mongodb_oidc/token_machine_workflow.ts"],"names":[],"mappings":";;;AAAA,yBAAyB;AAEzB,0CAA+C;AAC/C,yDAAuE;AAGvE,8DAA8D;AAC9D,MAAM,mBAAmB,GAAG,iDAAiD,CAAC;AAE9E;;;;GAIG;AACH,MAAa,oBAAqB,SAAQ,kCAAe;IACvD;;OAEG;IACH,YAAY,KAAiB;QAC3B,KAAK,CAAC,KAAK,CAAC,CAAC;IACf,CAAC;IAED;;OAEG;IACH,KAAK,CAAC,QAAQ;QACZ,MAAM,SAAS,GAAG,OAAO,CAAC,GAAG,CAAC,eAAe,CAAC;QAC9C,IAAI,CAAC,SAAS,EAAE,CAAC;YACf,MAAM,IAAI,qBAAa,CAAC,mBAAmB,CAAC,CAAC;QAC/C,CAAC;QACD,MAAM,KAAK,GAAG,MAAM,EAAE,CAAC,QAAQ,CAAC,QAAQ,CAAC,SAAS,EAAE,MAAM,CAAC,CAAC;QAC5D,OAAO,EAAE,YAAY,EAAE,KAAK,EAAE,CAAC;IACjC,CAAC;CACF;AAnBD,oDAmBC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/plain.js b/backend/node_modules/mongodb/lib/cmap/auth/plain.js
new file mode 100644
index 0000000..7d197ab
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/plain.js
@@ -0,0 +1,26 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Plain = void 0;
+const bson_1 = require("../../bson");
+const error_1 = require("../../error");
+const utils_1 = require("../../utils");
+const auth_provider_1 = require("./auth_provider");
+class Plain extends auth_provider_1.AuthProvider {
+    async auth(authContext) {
+        const { connection, credentials } = authContext;
+        if (!credentials) {
+            throw new error_1.MongoMissingCredentialsError('AuthContext must provide credentials.');
+        }
+        const { username, password } = credentials;
+        const payload = new bson_1.Binary(Buffer.from(`\x00${username}\x00${password}`));
+        const command = {
+            saslStart: 1,
+            mechanism: 'PLAIN',
+            payload: payload,
+            autoAuthorize: 1
+        };
+        await connection.command((0, utils_1.ns)('$external.$cmd'), command, undefined);
+    }
+}
+exports.Plain = Plain;
+//# sourceMappingURL=plain.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/plain.js.map b/backend/node_modules/mongodb/lib/cmap/auth/plain.js.map
new file mode 100644
index 0000000..efd3210
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/plain.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"plain.js","sourceRoot":"","sources":["../../../src/cmap/auth/plain.ts"],"names":[],"mappings":";;;AAAA,qCAAoC;AACpC,uCAA2D;AAC3D,uCAAiC;AACjC,mDAAiE;AAEjE,MAAa,KAAM,SAAQ,4BAAY;IAC5B,KAAK,CAAC,IAAI,CAAC,WAAwB;QAC1C,MAAM,EAAE,UAAU,EAAE,WAAW,EAAE,GAAG,WAAW,CAAC;QAChD,IAAI,CAAC,WAAW,EAAE,CAAC;YACjB,MAAM,IAAI,oCAA4B,CAAC,uCAAuC,CAAC,CAAC;QAClF,CAAC;QAED,MAAM,EAAE,QAAQ,EAAE,QAAQ,EAAE,GAAG,WAAW,CAAC;QAE3C,MAAM,OAAO,GAAG,IAAI,aAAM,CAAC,MAAM,CAAC,IAAI,CAAC,OAAO,QAAQ,OAAO,QAAQ,EAAE,CAAC,CAAC,CAAC;QAC1E,MAAM,OAAO,GAAG;YACd,SAAS,EAAE,CAAC;YACZ,SAAS,EAAE,OAAO;YAClB,OAAO,EAAE,OAAO;YAChB,aAAa,EAAE,CAAC;SACjB,CAAC;QAEF,MAAM,UAAU,CAAC,OAAO,CAAC,IAAA,UAAE,EAAC,gBAAgB,CAAC,EAAE,OAAO,EAAE,SAAS,CAAC,CAAC;IACrE,CAAC;CACF;AAnBD,sBAmBC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/providers.js b/backend/node_modules/mongodb/lib/cmap/auth/providers.js
new file mode 100644
index 0000000..3ad1c35
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/providers.js
@@ -0,0 +1,23 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.AUTH_MECHS_AUTH_SRC_EXTERNAL = exports.AuthMechanism = void 0;
+/** @public */
+exports.AuthMechanism = Object.freeze({
+    MONGODB_AWS: 'MONGODB-AWS',
+    MONGODB_CR: 'MONGODB-CR',
+    MONGODB_DEFAULT: 'DEFAULT',
+    MONGODB_GSSAPI: 'GSSAPI',
+    MONGODB_PLAIN: 'PLAIN',
+    MONGODB_SCRAM_SHA1: 'SCRAM-SHA-1',
+    MONGODB_SCRAM_SHA256: 'SCRAM-SHA-256',
+    MONGODB_X509: 'MONGODB-X509',
+    MONGODB_OIDC: 'MONGODB-OIDC'
+});
+/** @internal */
+exports.AUTH_MECHS_AUTH_SRC_EXTERNAL = new Set([
+    exports.AuthMechanism.MONGODB_GSSAPI,
+    exports.AuthMechanism.MONGODB_AWS,
+    exports.AuthMechanism.MONGODB_OIDC,
+    exports.AuthMechanism.MONGODB_X509
+]);
+//# sourceMappingURL=providers.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/providers.js.map b/backend/node_modules/mongodb/lib/cmap/auth/providers.js.map
new file mode 100644
index 0000000..bb55643
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/providers.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"providers.js","sourceRoot":"","sources":["../../../src/cmap/auth/providers.ts"],"names":[],"mappings":";;;AAAA,cAAc;AACD,QAAA,aAAa,GAAG,MAAM,CAAC,MAAM,CAAC;IACzC,WAAW,EAAE,aAAa;IAC1B,UAAU,EAAE,YAAY;IACxB,eAAe,EAAE,SAAS;IAC1B,cAAc,EAAE,QAAQ;IACxB,aAAa,EAAE,OAAO;IACtB,kBAAkB,EAAE,aAAa;IACjC,oBAAoB,EAAE,eAAe;IACrC,YAAY,EAAE,cAAc;IAC5B,YAAY,EAAE,cAAc;CACpB,CAAC,CAAC;AAKZ,gBAAgB;AACH,QAAA,4BAA4B,GAAG,IAAI,GAAG,CAAgB;IACjE,qBAAa,CAAC,cAAc;IAC5B,qBAAa,CAAC,WAAW;IACzB,qBAAa,CAAC,YAAY;IAC1B,qBAAa,CAAC,YAAY;CAC3B,CAAC,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/scram.js b/backend/node_modules/mongodb/lib/cmap/auth/scram.js
new file mode 100644
index 0000000..eb7fe59
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/scram.js
@@ -0,0 +1,254 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ScramSHA256 = exports.ScramSHA1 = void 0;
+const saslprep_1 = require("@mongodb-js/saslprep");
+const crypto = require("crypto");
+const bson_1 = require("../../bson");
+const error_1 = require("../../error");
+const utils_1 = require("../../utils");
+const auth_provider_1 = require("./auth_provider");
+const providers_1 = require("./providers");
+class ScramSHA extends auth_provider_1.AuthProvider {
+    constructor(cryptoMethod) {
+        super();
+        this.cryptoMethod = cryptoMethod || 'sha1';
+    }
+    async prepare(handshakeDoc, authContext) {
+        const cryptoMethod = this.cryptoMethod;
+        const credentials = authContext.credentials;
+        if (!credentials) {
+            throw new error_1.MongoMissingCredentialsError('AuthContext must provide credentials.');
+        }
+        const nonce = await (0, utils_1.randomBytes)(24);
+        // store the nonce for later use
+        authContext.nonce = nonce;
+        const request = {
+            ...handshakeDoc,
+            speculativeAuthenticate: {
+                ...makeFirstMessage(cryptoMethod, credentials, nonce),
+                db: credentials.source
+            }
+        };
+        return request;
+    }
+    async auth(authContext) {
+        const { reauthenticating, response } = authContext;
+        if (response?.speculativeAuthenticate && !reauthenticating) {
+            return await continueScramConversation(this.cryptoMethod, response.speculativeAuthenticate, authContext);
+        }
+        return await executeScram(this.cryptoMethod, authContext);
+    }
+}
+function cleanUsername(username) {
+    return username.replace('=', '=3D').replace(',', '=2C');
+}
+function clientFirstMessageBare(username, nonce) {
+    // NOTE: This is done b/c Javascript uses UTF-16, but the server is hashing in UTF-8.
+    // Since the username is not sasl-prep-d, we need to do this here.
+    return Buffer.concat([
+        Buffer.from('n=', 'utf8'),
+        Buffer.from(username, 'utf8'),
+        Buffer.from(',r=', 'utf8'),
+        Buffer.from(nonce.toString('base64'), 'utf8')
+    ]);
+}
+function makeFirstMessage(cryptoMethod, credentials, nonce) {
+    const username = cleanUsername(credentials.username);
+    const mechanism = cryptoMethod === 'sha1' ? providers_1.AuthMechanism.MONGODB_SCRAM_SHA1 : providers_1.AuthMechanism.MONGODB_SCRAM_SHA256;
+    // NOTE: This is done b/c Javascript uses UTF-16, but the server is hashing in UTF-8.
+    // Since the username is not sasl-prep-d, we need to do this here.
+    return {
+        saslStart: 1,
+        mechanism,
+        payload: new bson_1.Binary(Buffer.concat([Buffer.from('n,,', 'utf8'), clientFirstMessageBare(username, nonce)])),
+        autoAuthorize: 1,
+        options: { skipEmptyExchange: true }
+    };
+}
+async function executeScram(cryptoMethod, authContext) {
+    const { connection, credentials } = authContext;
+    if (!credentials) {
+        throw new error_1.MongoMissingCredentialsError('AuthContext must provide credentials.');
+    }
+    if (!authContext.nonce) {
+        throw new error_1.MongoInvalidArgumentError('AuthContext must contain a valid nonce property');
+    }
+    const nonce = authContext.nonce;
+    const db = credentials.source;
+    const saslStartCmd = makeFirstMessage(cryptoMethod, credentials, nonce);
+    const response = await connection.command((0, utils_1.ns)(`${db}.$cmd`), saslStartCmd, undefined);
+    await continueScramConversation(cryptoMethod, response, authContext);
+}
+async function continueScramConversation(cryptoMethod, response, authContext) {
+    const connection = authContext.connection;
+    const credentials = authContext.credentials;
+    if (!credentials) {
+        throw new error_1.MongoMissingCredentialsError('AuthContext must provide credentials.');
+    }
+    if (!authContext.nonce) {
+        throw new error_1.MongoInvalidArgumentError('Unable to continue SCRAM without valid nonce');
+    }
+    const nonce = authContext.nonce;
+    const db = credentials.source;
+    const username = cleanUsername(credentials.username);
+    const password = credentials.password;
+    const processedPassword = cryptoMethod === 'sha256' ? (0, saslprep_1.saslprep)(password) : passwordDigest(username, password);
+    const payload = Buffer.isBuffer(response.payload)
+        ? new bson_1.Binary(response.payload)
+        : response.payload;
+    const dict = parsePayload(payload);
+    const iterations = parseInt(dict.i, 10);
+    if (iterations && iterations < 4096) {
+        // TODO(NODE-3483)
+        throw new error_1.MongoRuntimeError(`Server returned an invalid iteration count ${iterations}`);
+    }
+    const salt = dict.s;
+    const rnonce = dict.r;
+    if (rnonce.startsWith('nonce')) {
+        // TODO(NODE-3483)
+        throw new error_1.MongoRuntimeError(`Server returned an invalid nonce: ${rnonce}`);
+    }
+    // Set up start of proof
+    const withoutProof = `c=biws,r=${rnonce}`;
+    const saltedPassword = HI(processedPassword, Buffer.from(salt, 'base64'), iterations, cryptoMethod);
+    const clientKey = HMAC(cryptoMethod, saltedPassword, 'Client Key');
+    const serverKey = HMAC(cryptoMethod, saltedPassword, 'Server Key');
+    const storedKey = H(cryptoMethod, clientKey);
+    const authMessage = [
+        clientFirstMessageBare(username, nonce),
+        payload.toString('utf8'),
+        withoutProof
+    ].join(',');
+    const clientSignature = HMAC(cryptoMethod, storedKey, authMessage);
+    const clientProof = `p=${xor(clientKey, clientSignature)}`;
+    const clientFinal = [withoutProof, clientProof].join(',');
+    const serverSignature = HMAC(cryptoMethod, serverKey, authMessage);
+    const saslContinueCmd = {
+        saslContinue: 1,
+        conversationId: response.conversationId,
+        payload: new bson_1.Binary(Buffer.from(clientFinal))
+    };
+    const r = await connection.command((0, utils_1.ns)(`${db}.$cmd`), saslContinueCmd, undefined);
+    const parsedResponse = parsePayload(r.payload);
+    if (!compareDigest(Buffer.from(parsedResponse.v, 'base64'), serverSignature)) {
+        throw new error_1.MongoRuntimeError('Server returned an invalid signature');
+    }
+    if (r.done !== false) {
+        // If the server sends r.done === true we can save one RTT
+        return;
+    }
+    const retrySaslContinueCmd = {
+        saslContinue: 1,
+        conversationId: r.conversationId,
+        payload: Buffer.alloc(0)
+    };
+    await connection.command((0, utils_1.ns)(`${db}.$cmd`), retrySaslContinueCmd, undefined);
+}
+function parsePayload(payload) {
+    const payloadStr = payload.toString('utf8');
+    const dict = {};
+    const parts = payloadStr.split(',');
+    for (let i = 0; i < parts.length; i++) {
+        const valueParts = (parts[i].match(/^([^=]*)=(.*)$/) ?? []).slice(1);
+        dict[valueParts[0]] = valueParts[1];
+    }
+    return dict;
+}
+function passwordDigest(username, password) {
+    if (typeof username !== 'string') {
+        throw new error_1.MongoInvalidArgumentError('Username must be a string');
+    }
+    if (typeof password !== 'string') {
+        throw new error_1.MongoInvalidArgumentError('Password must be a string');
+    }
+    if (password.length === 0) {
+        throw new error_1.MongoInvalidArgumentError('Password cannot be empty');
+    }
+    let md5;
+    try {
+        md5 = crypto.createHash('md5');
+    }
+    catch (err) {
+        if (crypto.getFips()) {
+            // This error is (slightly) more helpful than what comes from OpenSSL directly, e.g.
+            // 'Error: error:060800C8:digital envelope routines:EVP_DigestInit_ex:disabled for FIPS'
+            throw new Error('Auth mechanism SCRAM-SHA-1 is not supported in FIPS mode');
+        }
+        throw err;
+    }
+    md5.update(`${username}:mongo:${password}`, 'utf8');
+    return md5.digest('hex');
+}
+// XOR two buffers
+function xor(a, b) {
+    if (!Buffer.isBuffer(a)) {
+        a = Buffer.from(a);
+    }
+    if (!Buffer.isBuffer(b)) {
+        b = Buffer.from(b);
+    }
+    const length = Math.max(a.length, b.length);
+    const res = [];
+    for (let i = 0; i < length; i += 1) {
+        res.push(a[i] ^ b[i]);
+    }
+    return Buffer.from(res).toString('base64');
+}
+function H(method, text) {
+    return crypto.createHash(method).update(text).digest();
+}
+function HMAC(method, key, text) {
+    return crypto.createHmac(method, key).update(text).digest();
+}
+let _hiCache = {};
+let _hiCacheCount = 0;
+function _hiCachePurge() {
+    _hiCache = {};
+    _hiCacheCount = 0;
+}
+const hiLengthMap = {
+    sha256: 32,
+    sha1: 20
+};
+function HI(data, salt, iterations, cryptoMethod) {
+    // omit the work if already generated
+    const key = [data, salt.toString('base64'), iterations].join('_');
+    if (_hiCache[key] != null) {
+        return _hiCache[key];
+    }
+    // generate the salt
+    const saltedData = crypto.pbkdf2Sync(data, salt, iterations, hiLengthMap[cryptoMethod], cryptoMethod);
+    // cache a copy to speed up the next lookup, but prevent unbounded cache growth
+    if (_hiCacheCount >= 200) {
+        _hiCachePurge();
+    }
+    _hiCache[key] = saltedData;
+    _hiCacheCount += 1;
+    return saltedData;
+}
+function compareDigest(lhs, rhs) {
+    if (lhs.length !== rhs.length) {
+        return false;
+    }
+    if (typeof crypto.timingSafeEqual === 'function') {
+        return crypto.timingSafeEqual(lhs, rhs);
+    }
+    let result = 0;
+    for (let i = 0; i < lhs.length; i++) {
+        result |= lhs[i] ^ rhs[i];
+    }
+    return result === 0;
+}
+class ScramSHA1 extends ScramSHA {
+    constructor() {
+        super('sha1');
+    }
+}
+exports.ScramSHA1 = ScramSHA1;
+class ScramSHA256 extends ScramSHA {
+    constructor() {
+        super('sha256');
+    }
+}
+exports.ScramSHA256 = ScramSHA256;
+//# sourceMappingURL=scram.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/scram.js.map b/backend/node_modules/mongodb/lib/cmap/auth/scram.js.map
new file mode 100644
index 0000000..ffda42f
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/scram.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"scram.js","sourceRoot":"","sources":["../../../src/cmap/auth/scram.ts"],"names":[],"mappings":";;;AAAA,mDAAgD;AAChD,iCAAiC;AAEjC,qCAAmD;AACnD,uCAIqB;AACrB,uCAA8C;AAE9C,mDAAiE;AAEjE,2CAA4C;AAI5C,MAAM,QAAS,SAAQ,4BAAY;IAGjC,YAAY,YAA0B;QACpC,KAAK,EAAE,CAAC;QACR,IAAI,CAAC,YAAY,GAAG,YAAY,IAAI,MAAM,CAAC;IAC7C,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,YAA+B,EAC/B,WAAwB;QAExB,MAAM,YAAY,GAAG,IAAI,CAAC,YAAY,CAAC;QACvC,MAAM,WAAW,GAAG,WAAW,CAAC,WAAW,CAAC;QAC5C,IAAI,CAAC,WAAW,EAAE,CAAC;YACjB,MAAM,IAAI,oCAA4B,CAAC,uCAAuC,CAAC,CAAC;QAClF,CAAC;QAED,MAAM,KAAK,GAAG,MAAM,IAAA,mBAAW,EAAC,EAAE,CAAC,CAAC;QACpC,gCAAgC;QAChC,WAAW,CAAC,KAAK,GAAG,KAAK,CAAC;QAE1B,MAAM,OAAO,GAAG;YACd,GAAG,YAAY;YACf,uBAAuB,EAAE;gBACvB,GAAG,gBAAgB,CAAC,YAAY,EAAE,WAAW,EAAE,KAAK,CAAC;gBACrD,EAAE,EAAE,WAAW,CAAC,MAAM;aACvB;SACF,CAAC;QAEF,OAAO,OAAO,CAAC;IACjB,CAAC;IAEQ,KAAK,CAAC,IAAI,CAAC,WAAwB;QAC1C,MAAM,EAAE,gBAAgB,EAAE,QAAQ,EAAE,GAAG,WAAW,CAAC;QACnD,IAAI,QAAQ,EAAE,uBAAuB,IAAI,CAAC,gBAAgB,EAAE,CAAC;YAC3D,OAAO,MAAM,yBAAyB,CACpC,IAAI,CAAC,YAAY,EACjB,QAAQ,CAAC,uBAAuB,EAChC,WAAW,CACZ,CAAC;QACJ,CAAC;QACD,OAAO,MAAM,YAAY,CAAC,IAAI,CAAC,YAAY,EAAE,WAAW,CAAC,CAAC;IAC5D,CAAC;CACF;AAED,SAAS,aAAa,CAAC,QAAgB;IACrC,OAAO,QAAQ,CAAC,OAAO,CAAC,GAAG,EAAE,KAAK,CAAC,CAAC,OAAO,CAAC,GAAG,EAAE,KAAK,CAAC,CAAC;AAC1D,CAAC;AAED,SAAS,sBAAsB,CAAC,QAAgB,EAAE,KAAa;IAC7D,qFAAqF;IACrF,kEAAkE;IAClE,OAAO,MAAM,CAAC,MAAM,CAAC;QACnB,MAAM,CAAC,IAAI,CAAC,IAAI,EAAE,MAAM,CAAC;QACzB,MAAM,CAAC,IAAI,CAAC,QAAQ,EAAE,MAAM,CAAC;QAC7B,MAAM,CAAC,IAAI,CAAC,KAAK,EAAE,MAAM,CAAC;QAC1B,MAAM,CAAC,IAAI,CAAC,KAAK,CAAC,QAAQ,CAAC,QAAQ,CAAC,EAAE,MAAM,CAAC;KAC9C,CAAC,CAAC;AACL,CAAC;AAED,SAAS,gBAAgB,CACvB,YAA0B,EAC1B,WAA6B,EAC7B,KAAa;IAEb,MAAM,QAAQ,GAAG,aAAa,CAAC,WAAW,CAAC,QAAQ,CAAC,CAAC;IACrD,MAAM,SAAS,GACb,YAAY,KAAK,MAAM,CAAC,CAAC,CAAC,yBAAa,CAAC,kBAAkB,CAAC,CAAC,CAAC,yBAAa,CAAC,oBAAoB,CAAC;IAElG,qFAAqF;IACrF,kEAAkE;IAClE,OAAO;QACL,SAAS,EAAE,CAAC;QACZ,SAAS;QACT,OAAO,EAAE,IAAI,aAAM,CACjB,MAAM,CAAC,MAAM,CAAC,CAAC,MAAM,CAAC,IAAI,CAAC,KAAK,EAAE,MAAM,CAAC,EAAE,sBAAsB,CAAC,QAAQ,EAAE,KAAK,CAAC,CAAC,CAAC,CACrF;QACD,aAAa,EAAE,CAAC;QAChB,OAAO,EAAE,EAAE,iBAAiB,EAAE,IAAI,EAAE;KACrC,CAAC;AACJ,CAAC;AAED,KAAK,UAAU,YAAY,CAAC,YAA0B,EAAE,WAAwB;IAC9E,MAAM,EAAE,UAAU,EAAE,WAAW,EAAE,GAAG,WAAW,CAAC;IAChD,IAAI,CAAC,WAAW,EAAE,CAAC;QACjB,MAAM,IAAI,oCAA4B,CAAC,uCAAuC,CAAC,CAAC;IAClF,CAAC;IACD,IAAI,CAAC,WAAW,CAAC,KAAK,EAAE,CAAC;QACvB,MAAM,IAAI,iCAAyB,CAAC,iDAAiD,CAAC,CAAC;IACzF,CAAC;IACD,MAAM,KAAK,GAAG,WAAW,CAAC,KAAK,CAAC;IAChC,MAAM,EAAE,GAAG,WAAW,CAAC,MAAM,CAAC;IAE9B,MAAM,YAAY,GAAG,gBAAgB,CAAC,YAAY,EAAE,WAAW,EAAE,KAAK,CAAC,CAAC;IACxE,MAAM,QAAQ,GAAG,MAAM,UAAU,CAAC,OAAO,CAAC,IAAA,UAAE,EAAC,GAAG,EAAE,OAAO,CAAC,EAAE,YAAY,EAAE,SAAS,CAAC,CAAC;IACrF,MAAM,yBAAyB,CAAC,YAAY,EAAE,QAAQ,EAAE,WAAW,CAAC,CAAC;AACvE,CAAC;AAED,KAAK,UAAU,yBAAyB,CACtC,YAA0B,EAC1B,QAAkB,EAClB,WAAwB;IAExB,MAAM,UAAU,GAAG,WAAW,CAAC,UAAU,CAAC;IAC1C,MAAM,WAAW,GAAG,WAAW,CAAC,WAAW,CAAC;IAC5C,IAAI,CAAC,WAAW,EAAE,CAAC;QACjB,MAAM,IAAI,oCAA4B,CAAC,uCAAuC,CAAC,CAAC;IAClF,CAAC;IACD,IAAI,CAAC,WAAW,CAAC,KAAK,EAAE,CAAC;QACvB,MAAM,IAAI,iCAAyB,CAAC,8CAA8C,CAAC,CAAC;IACtF,CAAC;IACD,MAAM,KAAK,GAAG,WAAW,CAAC,KAAK,CAAC;IAEhC,MAAM,EAAE,GAAG,WAAW,CAAC,MAAM,CAAC;IAC9B,MAAM,QAAQ,GAAG,aAAa,CAAC,WAAW,CAAC,QAAQ,CAAC,CAAC;IACrD,MAAM,QAAQ,GAAG,WAAW,CAAC,QAAQ,CAAC;IAEtC,MAAM,iBAAiB,GACrB,YAAY,KAAK,QAAQ,CAAC,CAAC,CAAC,IAAA,mBAAQ,EAAC,QAAQ,CAAC,CAAC,CAAC,CAAC,cAAc,CAAC,QAAQ,EAAE,QAAQ,CAAC,CAAC;IAEtF,MAAM,OAAO,GAAW,MAAM,CAAC,QAAQ,CAAC,QAAQ,CAAC,OAAO,CAAC;QACvD,CAAC,CAAC,IAAI,aAAM,CAAC,QAAQ,CAAC,OAAO,CAAC;QAC9B,CAAC,CAAC,QAAQ,CAAC,OAAO,CAAC;IAErB,MAAM,IAAI,GAAG,YAAY,CAAC,OAAO,CAAC,CAAC;IAEnC,MAAM,UAAU,GAAG,QAAQ,CAAC,IAAI,CAAC,CAAC,EAAE,EAAE,CAAC,CAAC;IACxC,IAAI,UAAU,IAAI,UAAU,GAAG,IAAI,EAAE,CAAC;QACpC,kBAAkB;QAClB,MAAM,IAAI,yBAAiB,CAAC,8CAA8C,UAAU,EAAE,CAAC,CAAC;IAC1F,CAAC;IAED,MAAM,IAAI,GAAG,IAAI,CAAC,CAAC,CAAC;IACpB,MAAM,MAAM,GAAG,IAAI,CAAC,CAAC,CAAC;IACtB,IAAI,MAAM,CAAC,UAAU,CAAC,OAAO,CAAC,EAAE,CAAC;QAC/B,kBAAkB;QAClB,MAAM,IAAI,yBAAiB,CAAC,qCAAqC,MAAM,EAAE,CAAC,CAAC;IAC7E,CAAC;IAED,wBAAwB;IACxB,MAAM,YAAY,GAAG,YAAY,MAAM,EAAE,CAAC;IAC1C,MAAM,cAAc,GAAG,EAAE,CACvB,iBAAiB,EACjB,MAAM,CAAC,IAAI,CAAC,IAAI,EAAE,QAAQ,CAAC,EAC3B,UAAU,EACV,YAAY,CACb,CAAC;IAEF,MAAM,SAAS,GAAG,IAAI,CAAC,YAAY,EAAE,cAAc,EAAE,YAAY,CAAC,CAAC;IACnE,MAAM,SAAS,GAAG,IAAI,CAAC,YAAY,EAAE,cAAc,EAAE,YAAY,CAAC,CAAC;IACnE,MAAM,SAAS,GAAG,CAAC,CAAC,YAAY,EAAE,SAAS,CAAC,CAAC;IAC7C,MAAM,WAAW,GAAG;QAClB,sBAAsB,CAAC,QAAQ,EAAE,KAAK,CAAC;QACvC,OAAO,CAAC,QAAQ,CAAC,MAAM,CAAC;QACxB,YAAY;KACb,CAAC,IAAI,CAAC,GAAG,CAAC,CAAC;IAEZ,MAAM,eAAe,GAAG,IAAI,CAAC,YAAY,EAAE,SAAS,EAAE,WAAW,CAAC,CAAC;IACnE,MAAM,WAAW,GAAG,KAAK,GAAG,CAAC,SAAS,EAAE,eAAe,CAAC,EAAE,CAAC;IAC3D,MAAM,WAAW,GAAG,CAAC,YAAY,EAAE,WAAW,CAAC,CAAC,IAAI,CAAC,GAAG,CAAC,CAAC;IAE1D,MAAM,eAAe,GAAG,IAAI,CAAC,YAAY,EAAE,SAAS,EAAE,WAAW,CAAC,CAAC;IACnE,MAAM,eAAe,GAAG;QACtB,YAAY,EAAE,CAAC;QACf,cAAc,EAAE,QAAQ,CAAC,cAAc;QACvC,OAAO,EAAE,IAAI,aAAM,CAAC,MAAM,CAAC,IAAI,CAAC,WAAW,CAAC,CAAC;KAC9C,CAAC;IAEF,MAAM,CAAC,GAAG,MAAM,UAAU,CAAC,OAAO,CAAC,IAAA,UAAE,EAAC,GAAG,EAAE,OAAO,CAAC,EAAE,eAAe,EAAE,SAAS,CAAC,CAAC;IACjF,MAAM,cAAc,GAA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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/x509.js b/backend/node_modules/mongodb/lib/cmap/auth/x509.js
new file mode 100644
index 0000000..6f431c4
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/x509.js
@@ -0,0 +1,36 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.X509 = void 0;
+const error_1 = require("../../error");
+const utils_1 = require("../../utils");
+const auth_provider_1 = require("./auth_provider");
+class X509 extends auth_provider_1.AuthProvider {
+    async prepare(handshakeDoc, authContext) {
+        const { credentials } = authContext;
+        if (!credentials) {
+            throw new error_1.MongoMissingCredentialsError('AuthContext must provide credentials.');
+        }
+        return { ...handshakeDoc, speculativeAuthenticate: x509AuthenticateCommand(credentials) };
+    }
+    async auth(authContext) {
+        const connection = authContext.connection;
+        const credentials = authContext.credentials;
+        if (!credentials) {
+            throw new error_1.MongoMissingCredentialsError('AuthContext must provide credentials.');
+        }
+        const response = authContext.response;
+        if (response?.speculativeAuthenticate) {
+            return;
+        }
+        await connection.command((0, utils_1.ns)('$external.$cmd'), x509AuthenticateCommand(credentials), undefined);
+    }
+}
+exports.X509 = X509;
+function x509AuthenticateCommand(credentials) {
+    const command = { authenticate: 1, mechanism: 'MONGODB-X509' };
+    if (credentials.username) {
+        command.user = credentials.username;
+    }
+    return command;
+}
+//# sourceMappingURL=x509.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/auth/x509.js.map b/backend/node_modules/mongodb/lib/cmap/auth/x509.js.map
new file mode 100644
index 0000000..bdaf196
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/auth/x509.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"x509.js","sourceRoot":"","sources":["../../../src/cmap/auth/x509.ts"],"names":[],"mappings":";;;AACA,uCAA2D;AAC3D,uCAAiC;AAEjC,mDAAiE;AAGjE,MAAa,IAAK,SAAQ,4BAAY;IAC3B,KAAK,CAAC,OAAO,CACpB,YAA+B,EAC/B,WAAwB;QAExB,MAAM,EAAE,WAAW,EAAE,GAAG,WAAW,CAAC;QACpC,IAAI,CAAC,WAAW,EAAE,CAAC;YACjB,MAAM,IAAI,oCAA4B,CAAC,uCAAuC,CAAC,CAAC;QAClF,CAAC;QACD,OAAO,EAAE,GAAG,YAAY,EAAE,uBAAuB,EAAE,uBAAuB,CAAC,WAAW,CAAC,EAAE,CAAC;IAC5F,CAAC;IAEQ,KAAK,CAAC,IAAI,CAAC,WAAwB;QAC1C,MAAM,UAAU,GAAG,WAAW,CAAC,UAAU,CAAC;QAC1C,MAAM,WAAW,GAAG,WAAW,CAAC,WAAW,CAAC;QAC5C,IAAI,CAAC,WAAW,EAAE,CAAC;YACjB,MAAM,IAAI,oCAA4B,CAAC,uCAAuC,CAAC,CAAC;QAClF,CAAC;QACD,MAAM,QAAQ,GAAG,WAAW,CAAC,QAAQ,CAAC;QAEtC,IAAI,QAAQ,EAAE,uBAAuB,EAAE,CAAC;YACtC,OAAO;QACT,CAAC;QAED,MAAM,UAAU,CAAC,OAAO,CAAC,IAAA,UAAE,EAAC,gBAAgB,CAAC,EAAE,uBAAuB,CAAC,WAAW,CAAC,EAAE,SAAS,CAAC,CAAC;IAClG,CAAC;CACF;AA1BD,oBA0BC;AAED,SAAS,uBAAuB,CAAC,WAA6B;IAC5D,MAAM,OAAO,GAAa,EAAE,YAAY,EAAE,CAAC,EAAE,SAAS,EAAE,cAAc,EAAE,CAAC;IACzE,IAAI,WAAW,CAAC,QAAQ,EAAE,CAAC;QACzB,OAAO,CAAC,IAAI,GAAG,WAAW,CAAC,QAAQ,CAAC;IACtC,CAAC;IAED,OAAO,OAAO,CAAC;AACjB,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/command_monitoring_events.js b/backend/node_modules/mongodb/lib/cmap/command_monitoring_events.js
new file mode 100644
index 0000000..0aa32a5
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/command_monitoring_events.js
@@ -0,0 +1,262 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.SENSITIVE_COMMANDS = exports.CommandFailedEvent = exports.CommandSucceededEvent = exports.CommandStartedEvent = void 0;
+const constants_1 = require("../constants");
+const utils_1 = require("../utils");
+const commands_1 = require("./commands");
+/**
+ * An event indicating the start of a given command
+ * @public
+ * @category Event
+ */
+class CommandStartedEvent {
+    /**
+     * Create a started event
+     *
+     * @internal
+     * @param pool - the pool that originated the command
+     * @param command - the command
+     */
+    constructor(connection, command, serverConnectionId) {
+        /** @internal */
+        this.name = constants_1.COMMAND_STARTED;
+        const cmd = extractCommand(command);
+        const commandName = extractCommandName(cmd);
+        const { address, connectionId, serviceId } = extractConnectionDetails(connection);
+        // TODO: remove in major revision, this is not spec behavior
+        if (exports.SENSITIVE_COMMANDS.has(commandName)) {
+            this.commandObj = {};
+            this.commandObj[commandName] = true;
+        }
+        this.address = address;
+        this.connectionId = connectionId;
+        this.serviceId = serviceId;
+        this.requestId = command.requestId;
+        this.databaseName = command.databaseName;
+        this.commandName = commandName;
+        this.command = maybeRedact(commandName, cmd, cmd);
+        this.serverConnectionId = serverConnectionId;
+    }
+    /* @internal */
+    get hasServiceId() {
+        return !!this.serviceId;
+    }
+}
+exports.CommandStartedEvent = CommandStartedEvent;
+/**
+ * An event indicating the success of a given command
+ * @public
+ * @category Event
+ */
+class CommandSucceededEvent {
+    /**
+     * Create a succeeded event
+     *
+     * @internal
+     * @param pool - the pool that originated the command
+     * @param command - the command
+     * @param reply - the reply for this command from the server
+     * @param started - a high resolution tuple timestamp of when the command was first sent, to calculate duration
+     */
+    constructor(connection, command, reply, started, serverConnectionId) {
+        /** @internal */
+        this.name = constants_1.COMMAND_SUCCEEDED;
+        const cmd = extractCommand(command);
+        const commandName = extractCommandName(cmd);
+        const { address, connectionId, serviceId } = extractConnectionDetails(connection);
+        this.address = address;
+        this.connectionId = connectionId;
+        this.serviceId = serviceId;
+        this.requestId = command.requestId;
+        this.commandName = commandName;
+        this.duration = (0, utils_1.calculateDurationInMs)(started);
+        this.reply = maybeRedact(commandName, cmd, extractReply(command, reply));
+        this.serverConnectionId = serverConnectionId;
+    }
+    /* @internal */
+    get hasServiceId() {
+        return !!this.serviceId;
+    }
+}
+exports.CommandSucceededEvent = CommandSucceededEvent;
+/**
+ * An event indicating the failure of a given command
+ * @public
+ * @category Event
+ */
+class CommandFailedEvent {
+    /**
+     * Create a failure event
+     *
+     * @internal
+     * @param pool - the pool that originated the command
+     * @param command - the command
+     * @param error - the generated error or a server error response
+     * @param started - a high resolution tuple timestamp of when the command was first sent, to calculate duration
+     */
+    constructor(connection, command, error, started, serverConnectionId) {
+        /** @internal */
+        this.name = constants_1.COMMAND_FAILED;
+        const cmd = extractCommand(command);
+        const commandName = extractCommandName(cmd);
+        const { address, connectionId, serviceId } = extractConnectionDetails(connection);
+        this.address = address;
+        this.connectionId = connectionId;
+        this.serviceId = serviceId;
+        this.requestId = command.requestId;
+        this.commandName = commandName;
+        this.duration = (0, utils_1.calculateDurationInMs)(started);
+        this.failure = maybeRedact(commandName, cmd, error);
+        this.serverConnectionId = serverConnectionId;
+    }
+    /* @internal */
+    get hasServiceId() {
+        return !!this.serviceId;
+    }
+}
+exports.CommandFailedEvent = CommandFailedEvent;
+/**
+ * Commands that we want to redact because of the sensitive nature of their contents
+ * @internal
+ */
+exports.SENSITIVE_COMMANDS = new Set([
+    'authenticate',
+    'saslStart',
+    'saslContinue',
+    'getnonce',
+    'createUser',
+    'updateUser',
+    'copydbgetnonce',
+    'copydbsaslstart',
+    'copydb'
+]);
+const HELLO_COMMANDS = new Set(['hello', constants_1.LEGACY_HELLO_COMMAND, constants_1.LEGACY_HELLO_COMMAND_CAMEL_CASE]);
+// helper methods
+const extractCommandName = (commandDoc) => Object.keys(commandDoc)[0];
+const namespace = (command) => command.ns;
+const collectionName = (command) => command.ns.split('.')[1];
+const maybeRedact = (commandName, commandDoc, result) => exports.SENSITIVE_COMMANDS.has(commandName) ||
+    (HELLO_COMMANDS.has(commandName) && commandDoc.speculativeAuthenticate)
+    ? {}
+    : result;
+const LEGACY_FIND_QUERY_MAP = {
+    $query: 'filter',
+    $orderby: 'sort',
+    $hint: 'hint',
+    $comment: 'comment',
+    $maxScan: 'maxScan',
+    $max: 'max',
+    $min: 'min',
+    $returnKey: 'returnKey',
+    $showDiskLoc: 'showRecordId',
+    $maxTimeMS: 'maxTimeMS',
+    $snapshot: 'snapshot'
+};
+const LEGACY_FIND_OPTIONS_MAP = {
+    numberToSkip: 'skip',
+    numberToReturn: 'batchSize',
+    returnFieldSelector: 'projection'
+};
+const OP_QUERY_KEYS = [
+    'tailable',
+    'oplogReplay',
+    'noCursorTimeout',
+    'awaitData',
+    'partial',
+    'exhaust'
+];
+/** Extract the actual command from the query, possibly up-converting if it's a legacy format */
+function extractCommand(command) {
+    if (command instanceof commands_1.OpMsgRequest) {
+        const cmd = (0, utils_1.deepCopy)(command.command);
+        // For OP_MSG with payload type 1 we need to pull the documents
+        // array out of the document sequence for monitoring.
+        if (cmd.ops instanceof commands_1.DocumentSequence) {
+            cmd.ops = cmd.ops.documents;
+        }
+        if (cmd.nsInfo instanceof commands_1.DocumentSequence) {
+            cmd.nsInfo = cmd.nsInfo.documents;
+        }
+        return cmd;
+    }
+    if (command.query?.$query) {
+        let result;
+        if (command.ns === 'admin.$cmd') {
+            // up-convert legacy command
+            result = Object.assign({}, command.query.$query);
+        }
+        else {
+            // up-convert legacy find command
+            result = { find: collectionName(command) };
+            Object.keys(LEGACY_FIND_QUERY_MAP).forEach(key => {
+                if (command.query[key] != null) {
+                    result[LEGACY_FIND_QUERY_MAP[key]] = (0, utils_1.deepCopy)(command.query[key]);
+                }
+            });
+        }
+        Object.keys(LEGACY_FIND_OPTIONS_MAP).forEach(key => {
+            const legacyKey = key;
+            if (command[legacyKey] != null) {
+                result[LEGACY_FIND_OPTIONS_MAP[legacyKey]] = (0, utils_1.deepCopy)(command[legacyKey]);
+            }
+        });
+        OP_QUERY_KEYS.forEach(key => {
+            if (command[key]) {
+                result[key] = command[key];
+            }
+        });
+        if (command.pre32Limit != null) {
+            result.limit = command.pre32Limit;
+        }
+        if (command.query.$explain) {
+            return { explain: result };
+        }
+        return result;
+    }
+    const clonedQuery = {};
+    const clonedCommand = {};
+    if (command.query) {
+        for (const k in command.query) {
+            clonedQuery[k] = (0, utils_1.deepCopy)(command.query[k]);
+        }
+        clonedCommand.query = clonedQuery;
+    }
+    for (const k in command) {
+        if (k === 'query')
+            continue;
+        clonedCommand[k] = (0, utils_1.deepCopy)(command[k]);
+    }
+    return command.query ? clonedQuery : clonedCommand;
+}
+function extractReply(command, reply) {
+    if (!reply) {
+        return reply;
+    }
+    if (command instanceof commands_1.OpMsgRequest) {
+        return (0, utils_1.deepCopy)(reply.result ? reply.result : reply);
+    }
+    // is this a legacy find command?
+    if (command.query && command.query.$query != null) {
+        return {
+            ok: 1,
+            cursor: {
+                id: (0, utils_1.deepCopy)(reply.cursorId),
+                ns: namespace(command),
+                firstBatch: (0, utils_1.deepCopy)(reply.documents)
+            }
+        };
+    }
+    return (0, utils_1.deepCopy)(reply.result ? reply.result : reply);
+}
+function extractConnectionDetails(connection) {
+    let connectionId;
+    if ('id' in connection) {
+        connectionId = connection.id;
+    }
+    return {
+        address: connection.address,
+        serviceId: connection.serviceId,
+        connectionId
+    };
+}
+//# sourceMappingURL=command_monitoring_events.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/command_monitoring_events.js.map b/backend/node_modules/mongodb/lib/cmap/command_monitoring_events.js.map
new file mode 100644
index 0000000..c9ac589
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/command_monitoring_events.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/commands.js b/backend/node_modules/mongodb/lib/cmap/commands.js
new file mode 100644
index 0000000..788ff76
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/commands.js
@@ -0,0 +1,533 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.OpCompressedRequest = exports.OpMsgResponse = exports.OpMsgRequest = exports.DocumentSequence = exports.OpReply = exports.OpQueryRequest = void 0;
+const BSON = require("../bson");
+const error_1 = require("../error");
+const compression_1 = require("./wire_protocol/compression");
+const constants_1 = require("./wire_protocol/constants");
+// Incrementing request id
+let _requestId = 0;
+// Query flags
+const OPTS_TAILABLE_CURSOR = 2;
+const OPTS_SECONDARY = 4;
+const OPTS_OPLOG_REPLAY = 8;
+const OPTS_NO_CURSOR_TIMEOUT = 16;
+const OPTS_AWAIT_DATA = 32;
+const OPTS_EXHAUST = 64;
+const OPTS_PARTIAL = 128;
+// Response flags
+const CURSOR_NOT_FOUND = 1;
+const QUERY_FAILURE = 2;
+const SHARD_CONFIG_STALE = 4;
+const AWAIT_CAPABLE = 8;
+const encodeUTF8Into = BSON.BSON.onDemand.ByteUtils.encodeUTF8Into;
+/** @internal */
+class OpQueryRequest {
+    constructor(databaseName, query, options) {
+        this.databaseName = databaseName;
+        this.query = query;
+        /** moreToCome is an OP_MSG only concept */
+        this.moreToCome = false;
+        // Basic options needed to be passed in
+        // TODO(NODE-3483): Replace with MongoCommandError
+        const ns = `${databaseName}.$cmd`;
+        if (typeof databaseName !== 'string') {
+            throw new error_1.MongoRuntimeError('Database name must be a string for a query');
+        }
+        // TODO(NODE-3483): Replace with MongoCommandError
+        if (query == null)
+            throw new error_1.MongoRuntimeError('A query document must be specified for query');
+        // Validate that we are not passing 0x00 in the collection name
+        if (ns.indexOf('\x00') !== -1) {
+            // TODO(NODE-3483): Use MongoNamespace static method
+            throw new error_1.MongoRuntimeError('Namespace cannot contain a null character');
+        }
+        // Basic options
+        this.ns = ns;
+        // Additional options
+        this.numberToSkip = options.numberToSkip || 0;
+        this.numberToReturn = options.numberToReturn || 0;
+        this.returnFieldSelector = options.returnFieldSelector || undefined;
+        this.requestId = options.requestId ?? OpQueryRequest.getRequestId();
+        // special case for pre-3.2 find commands, delete ASAP
+        this.pre32Limit = options.pre32Limit;
+        // Serialization option
+        this.serializeFunctions =
+            typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false;
+        this.ignoreUndefined =
+            typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : false;
+        this.maxBsonSize = options.maxBsonSize || 1024 * 1024 * 16;
+        this.checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false;
+        this.batchSize = this.numberToReturn;
+        // Flags
+        this.tailable = false;
+        this.secondaryOk = typeof options.secondaryOk === 'boolean' ? options.secondaryOk : false;
+        this.oplogReplay = false;
+        this.noCursorTimeout = false;
+        this.awaitData = false;
+        this.exhaust = false;
+        this.partial = false;
+    }
+    /** Assign next request Id. */
+    incRequestId() {
+        this.requestId = _requestId++;
+    }
+    /** Peek next request Id. */
+    nextRequestId() {
+        return _requestId + 1;
+    }
+    /** Increment then return next request Id. */
+    static getRequestId() {
+        return ++_requestId;
+    }
+    // Uses a single allocated buffer for the process, avoiding multiple memory allocations
+    toBin() {
+        const buffers = [];
+        let projection = null;
+        // Set up the flags
+        let flags = 0;
+        if (this.tailable) {
+            flags |= OPTS_TAILABLE_CURSOR;
+        }
+        if (this.secondaryOk) {
+            flags |= OPTS_SECONDARY;
+        }
+        if (this.oplogReplay) {
+            flags |= OPTS_OPLOG_REPLAY;
+        }
+        if (this.noCursorTimeout) {
+            flags |= OPTS_NO_CURSOR_TIMEOUT;
+        }
+        if (this.awaitData) {
+            flags |= OPTS_AWAIT_DATA;
+        }
+        if (this.exhaust) {
+            flags |= OPTS_EXHAUST;
+        }
+        if (this.partial) {
+            flags |= OPTS_PARTIAL;
+        }
+        // If batchSize is different to this.numberToReturn
+        if (this.batchSize !== this.numberToReturn)
+            this.numberToReturn = this.batchSize;
+        // Allocate write protocol header buffer
+        const header = Buffer.alloc(4 * 4 + // Header
+            4 + // Flags
+            Buffer.byteLength(this.ns) +
+            1 + // namespace
+            4 + // numberToSkip
+            4 // numberToReturn
+        );
+        // Add header to buffers
+        buffers.push(header);
+        // Serialize the query
+        const query = BSON.serialize(this.query, {
+            checkKeys: this.checkKeys,
+            serializeFunctions: this.serializeFunctions,
+            ignoreUndefined: this.ignoreUndefined
+        });
+        // Add query document
+        buffers.push(query);
+        if (this.returnFieldSelector && Object.keys(this.returnFieldSelector).length > 0) {
+            // Serialize the projection document
+            projection = BSON.serialize(this.returnFieldSelector, {
+                checkKeys: this.checkKeys,
+                serializeFunctions: this.serializeFunctions,
+                ignoreUndefined: this.ignoreUndefined
+            });
+            // Add projection document
+            buffers.push(projection);
+        }
+        // Total message size
+        const totalLength = header.length + query.length + (projection ? projection.length : 0);
+        // Set up the index
+        let index = 4;
+        // Write total document length
+        header[3] = (totalLength >> 24) & 0xff;
+        header[2] = (totalLength >> 16) & 0xff;
+        header[1] = (totalLength >> 8) & 0xff;
+        header[0] = totalLength & 0xff;
+        // Write header information requestId
+        header[index + 3] = (this.requestId >> 24) & 0xff;
+        header[index + 2] = (this.requestId >> 16) & 0xff;
+        header[index + 1] = (this.requestId >> 8) & 0xff;
+        header[index] = this.requestId & 0xff;
+        index = index + 4;
+        // Write header information responseTo
+        header[index + 3] = (0 >> 24) & 0xff;
+        header[index + 2] = (0 >> 16) & 0xff;
+        header[index + 1] = (0 >> 8) & 0xff;
+        header[index] = 0 & 0xff;
+        index = index + 4;
+        // Write header information OP_QUERY
+        header[index + 3] = (constants_1.OP_QUERY >> 24) & 0xff;
+        header[index + 2] = (constants_1.OP_QUERY >> 16) & 0xff;
+        header[index + 1] = (constants_1.OP_QUERY >> 8) & 0xff;
+        header[index] = constants_1.OP_QUERY & 0xff;
+        index = index + 4;
+        // Write header information flags
+        header[index + 3] = (flags >> 24) & 0xff;
+        header[index + 2] = (flags >> 16) & 0xff;
+        header[index + 1] = (flags >> 8) & 0xff;
+        header[index] = flags & 0xff;
+        index = index + 4;
+        // Write collection name
+        index = index + header.write(this.ns, index, 'utf8') + 1;
+        header[index - 1] = 0;
+        // Write header information flags numberToSkip
+        header[index + 3] = (this.numberToSkip >> 24) & 0xff;
+        header[index + 2] = (this.numberToSkip >> 16) & 0xff;
+        header[index + 1] = (this.numberToSkip >> 8) & 0xff;
+        header[index] = this.numberToSkip & 0xff;
+        index = index + 4;
+        // Write header information flags numberToReturn
+        header[index + 3] = (this.numberToReturn >> 24) & 0xff;
+        header[index + 2] = (this.numberToReturn >> 16) & 0xff;
+        header[index + 1] = (this.numberToReturn >> 8) & 0xff;
+        header[index] = this.numberToReturn & 0xff;
+        index = index + 4;
+        // Return the buffers
+        return buffers;
+    }
+}
+exports.OpQueryRequest = OpQueryRequest;
+/** @internal */
+class OpReply {
+    constructor(message, msgHeader, msgBody, opts) {
+        this.index = 0;
+        this.sections = [];
+        /** moreToCome is an OP_MSG only concept */
+        this.moreToCome = false;
+        this.parsed = false;
+        this.raw = message;
+        this.data = msgBody;
+        this.opts = opts ?? {
+            useBigInt64: false,
+            promoteLongs: true,
+            promoteValues: true,
+            promoteBuffers: false,
+            bsonRegExp: false
+        };
+        // Read the message header
+        this.length = msgHeader.length;
+        this.requestId = msgHeader.requestId;
+        this.responseTo = msgHeader.responseTo;
+        this.opCode = msgHeader.opCode;
+        this.fromCompressed = msgHeader.fromCompressed;
+        // Flag values
+        this.useBigInt64 = typeof this.opts.useBigInt64 === 'boolean' ? this.opts.useBigInt64 : false;
+        this.promoteLongs = typeof this.opts.promoteLongs === 'boolean' ? this.opts.promoteLongs : true;
+        this.promoteValues =
+            typeof this.opts.promoteValues === 'boolean' ? this.opts.promoteValues : true;
+        this.promoteBuffers =
+            typeof this.opts.promoteBuffers === 'boolean' ? this.opts.promoteBuffers : false;
+        this.bsonRegExp = typeof this.opts.bsonRegExp === 'boolean' ? this.opts.bsonRegExp : false;
+    }
+    isParsed() {
+        return this.parsed;
+    }
+    parse() {
+        // Don't parse again if not needed
+        if (this.parsed)
+            return this.sections[0];
+        // Position within OP_REPLY at which documents start
+        // (See https://www.mongodb.com/docs/manual/reference/mongodb-wire-protocol/#wire-op-reply)
+        this.index = 20;
+        // Read the message body
+        this.responseFlags = this.data.readInt32LE(0);
+        this.cursorId = new BSON.Long(this.data.readInt32LE(4), this.data.readInt32LE(8));
+        this.startingFrom = this.data.readInt32LE(12);
+        this.numberReturned = this.data.readInt32LE(16);
+        if (this.numberReturned < 0 || this.numberReturned > 2 ** 32 - 1) {
+            throw new RangeError(`OP_REPLY numberReturned is an invalid array length ${this.numberReturned}`);
+        }
+        this.cursorNotFound = (this.responseFlags & CURSOR_NOT_FOUND) !== 0;
+        this.queryFailure = (this.responseFlags & QUERY_FAILURE) !== 0;
+        this.shardConfigStale = (this.responseFlags & SHARD_CONFIG_STALE) !== 0;
+        this.awaitCapable = (this.responseFlags & AWAIT_CAPABLE) !== 0;
+        // Parse Body
+        for (let i = 0; i < this.numberReturned; i++) {
+            const bsonSize = this.data[this.index] |
+                (this.data[this.index + 1] << 8) |
+                (this.data[this.index + 2] << 16) |
+                (this.data[this.index + 3] << 24);
+            const section = this.data.subarray(this.index, this.index + bsonSize);
+            this.sections.push(section);
+            // Adjust the index
+            this.index = this.index + bsonSize;
+        }
+        // Set parsed
+        this.parsed = true;
+        return this.sections[0];
+    }
+}
+exports.OpReply = OpReply;
+// Msg Flags
+const OPTS_CHECKSUM_PRESENT = 1;
+const OPTS_MORE_TO_COME = 2;
+const OPTS_EXHAUST_ALLOWED = 1 << 16;
+/** @internal */
+class DocumentSequence {
+    /**
+     * Create a new document sequence for the provided field.
+     * @param field - The field it will replace.
+     */
+    constructor(field, documents) {
+        this.field = field;
+        this.documents = [];
+        this.chunks = [];
+        this.serializedDocumentsLength = 0;
+        // Document sequences starts with type 1 at the first byte.
+        // Field strings must always be UTF-8.
+        const buffer = Buffer.allocUnsafe(1 + 4 + this.field.length + 1);
+        buffer[0] = 1;
+        // Third part is the field name at offset 5 with trailing null byte.
+        encodeUTF8Into(buffer, `${this.field}\0`, 5);
+        this.chunks.push(buffer);
+        this.header = buffer;
+        if (documents) {
+            for (const doc of documents) {
+                this.push(doc, BSON.serialize(doc));
+            }
+        }
+    }
+    /**
+     * Push a document to the document sequence. Will serialize the document
+     * as well and return the current serialized length of all documents.
+     * @param document - The document to add.
+     * @param buffer - The serialized document in raw BSON.
+     * @returns The new total document sequence length.
+     */
+    push(document, buffer) {
+        this.serializedDocumentsLength += buffer.length;
+        // Push the document.
+        this.documents.push(document);
+        // Push the document raw bson.
+        this.chunks.push(buffer);
+        // Write the new length.
+        this.header?.writeInt32LE(4 + this.field.length + 1 + this.serializedDocumentsLength, 1);
+        return this.serializedDocumentsLength + this.header.length;
+    }
+    /**
+     * Get the fully serialized bytes for the document sequence section.
+     * @returns The section bytes.
+     */
+    toBin() {
+        return Buffer.concat(this.chunks);
+    }
+}
+exports.DocumentSequence = DocumentSequence;
+/** @internal */
+class OpMsgRequest {
+    constructor(databaseName, command, options) {
+        this.databaseName = databaseName;
+        this.command = command;
+        this.options = options;
+        // Basic options needed to be passed in
+        if (command == null)
+            throw new error_1.MongoInvalidArgumentError('Query document must be specified for query');
+        // Basic options
+        this.command.$db = databaseName;
+        // Ensure empty options
+        this.options = options ?? {};
+        // Additional options
+        this.requestId = options.requestId ? options.requestId : OpMsgRequest.getRequestId();
+        // Serialization option
+        this.serializeFunctions =
+            typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false;
+        this.ignoreUndefined =
+            typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : false;
+        this.checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false;
+        this.maxBsonSize = options.maxBsonSize || 1024 * 1024 * 16;
+        // flags
+        this.checksumPresent = false;
+        this.moreToCome = options.moreToCome ?? command.writeConcern?.w === 0;
+        this.exhaustAllowed =
+            typeof options.exhaustAllowed === 'boolean' ? options.exhaustAllowed : false;
+    }
+    toBin() {
+        const buffers = [];
+        let flags = 0;
+        if (this.checksumPresent) {
+            flags |= OPTS_CHECKSUM_PRESENT;
+        }
+        if (this.moreToCome) {
+            flags |= OPTS_MORE_TO_COME;
+        }
+        if (this.exhaustAllowed) {
+            flags |= OPTS_EXHAUST_ALLOWED;
+        }
+        const header = Buffer.alloc(4 * 4 + // Header
+            4 // Flags
+        );
+        buffers.push(header);
+        let totalLength = header.length;
+        const command = this.command;
+        totalLength += this.makeSections(buffers, command);
+        header.writeInt32LE(totalLength, 0); // messageLength
+        header.writeInt32LE(this.requestId, 4); // requestID
+        header.writeInt32LE(0, 8); // responseTo
+        header.writeInt32LE(constants_1.OP_MSG, 12); // opCode
+        header.writeUInt32LE(flags, 16); // flags
+        return buffers;
+    }
+    /**
+     * Add the sections to the OP_MSG request's buffers and returns the length.
+     */
+    makeSections(buffers, document) {
+        const sequencesBuffer = this.extractDocumentSequences(document);
+        const payloadTypeBuffer = Buffer.allocUnsafe(1);
+        payloadTypeBuffer[0] = 0;
+        const documentBuffer = this.serializeBson(document);
+        // First section, type 0
+        buffers.push(payloadTypeBuffer);
+        buffers.push(documentBuffer);
+        // Subsequent sections, type 1
+        buffers.push(sequencesBuffer);
+        return payloadTypeBuffer.length + documentBuffer.length + sequencesBuffer.length;
+    }
+    /**
+     * Extracts the document sequences from the command document and returns
+     * a buffer to be added as multiple sections after the initial type 0
+     * section in the message.
+     */
+    extractDocumentSequences(document) {
+        // Pull out any field in the command document that's value is a document sequence.
+        const chunks = [];
+        for (const [key, value] of Object.entries(document)) {
+            if (value instanceof DocumentSequence) {
+                chunks.push(value.toBin());
+                // Why are we removing the field from the command? This is because it needs to be
+                // removed in the OP_MSG request first section, and DocumentSequence is not a
+                // BSON type and is specific to the MongoDB wire protocol so there's nothing
+                // our BSON serializer can do about this. Since DocumentSequence is not exposed
+                // in the public API and only used internally, we are never mutating an original
+                // command provided by the user, just our own, and it's cheaper to delete from
+                // our own command than copying it.
+                delete document[key];
+            }
+        }
+        if (chunks.length > 0) {
+            return Buffer.concat(chunks);
+        }
+        // If we have no document sequences we return an empty buffer for nothing to add
+        // to the payload.
+        return Buffer.alloc(0);
+    }
+    serializeBson(document) {
+        return BSON.serialize(document, {
+            checkKeys: this.checkKeys,
+            serializeFunctions: this.serializeFunctions,
+            ignoreUndefined: this.ignoreUndefined
+        });
+    }
+    static getRequestId() {
+        _requestId = (_requestId + 1) & 0x7fffffff;
+        return _requestId;
+    }
+}
+exports.OpMsgRequest = OpMsgRequest;
+/** @internal */
+class OpMsgResponse {
+    constructor(message, msgHeader, msgBody, opts) {
+        this.index = 0;
+        this.sections = [];
+        this.parsed = false;
+        this.raw = message;
+        this.data = msgBody;
+        this.opts = opts ?? {
+            useBigInt64: false,
+            promoteLongs: true,
+            promoteValues: true,
+            promoteBuffers: false,
+            bsonRegExp: false
+        };
+        // Read the message header
+        this.length = msgHeader.length;
+        this.requestId = msgHeader.requestId;
+        this.responseTo = msgHeader.responseTo;
+        this.opCode = msgHeader.opCode;
+        this.fromCompressed = msgHeader.fromCompressed;
+        // Read response flags
+        this.responseFlags = msgBody.readInt32LE(0);
+        this.checksumPresent = (this.responseFlags & OPTS_CHECKSUM_PRESENT) !== 0;
+        this.moreToCome = (this.responseFlags & OPTS_MORE_TO_COME) !== 0;
+        this.exhaustAllowed = (this.responseFlags & OPTS_EXHAUST_ALLOWED) !== 0;
+        this.useBigInt64 = typeof this.opts.useBigInt64 === 'boolean' ? this.opts.useBigInt64 : false;
+        this.promoteLongs = typeof this.opts.promoteLongs === 'boolean' ? this.opts.promoteLongs : true;
+        this.promoteValues =
+            typeof this.opts.promoteValues === 'boolean' ? this.opts.promoteValues : true;
+        this.promoteBuffers =
+            typeof this.opts.promoteBuffers === 'boolean' ? this.opts.promoteBuffers : false;
+        this.bsonRegExp = typeof this.opts.bsonRegExp === 'boolean' ? this.opts.bsonRegExp : false;
+    }
+    isParsed() {
+        return this.parsed;
+    }
+    parse() {
+        // Don't parse again if not needed
+        if (this.parsed)
+            return this.sections[0];
+        this.index = 4;
+        while (this.index < this.data.length) {
+            const payloadType = this.data.readUInt8(this.index++);
+            if (payloadType === 0) {
+                const bsonSize = this.data.readUInt32LE(this.index);
+                const bin = this.data.subarray(this.index, this.index + bsonSize);
+                this.sections.push(bin);
+                this.index += bsonSize;
+            }
+            else if (payloadType === 1) {
+                // It was decided that no driver makes use of payload type 1
+                // TODO(NODE-3483): Replace with MongoDeprecationError
+                throw new error_1.MongoRuntimeError('OP_MSG Payload Type 1 detected unsupported protocol');
+            }
+        }
+        this.parsed = true;
+        return this.sections[0];
+    }
+}
+exports.OpMsgResponse = OpMsgResponse;
+const MESSAGE_HEADER_SIZE = 16;
+const COMPRESSION_DETAILS_SIZE = 9; // originalOpcode + uncompressedSize, compressorID
+/**
+ * @internal
+ *
+ * An OP_COMPRESSED request wraps either an OP_QUERY or OP_MSG message.
+ */
+class OpCompressedRequest {
+    constructor(command, options) {
+        this.command = command;
+        this.options = options;
+    }
+    // Return whether a command contains an uncompressible command term
+    // Will return true if command contains no uncompressible command terms
+    static canCompress(command) {
+        const commandDoc = command instanceof OpMsgRequest ? command.command : command.query;
+        const commandName = Object.keys(commandDoc)[0];
+        return !compression_1.uncompressibleCommands.has(commandName);
+    }
+    async toBin() {
+        const concatenatedOriginalCommandBuffer = Buffer.concat(this.command.toBin());
+        // otherwise, compress the message
+        const messageToBeCompressed = concatenatedOriginalCommandBuffer.slice(MESSAGE_HEADER_SIZE);
+        // Extract information needed for OP_COMPRESSED from the uncompressed message
+        const originalCommandOpCode = concatenatedOriginalCommandBuffer.readInt32LE(12);
+        // Compress the message body
+        const compressedMessage = await (0, compression_1.compress)(this.options, messageToBeCompressed);
+        // Create the msgHeader of OP_COMPRESSED
+        const msgHeader = Buffer.alloc(MESSAGE_HEADER_SIZE);
+        msgHeader.writeInt32LE(MESSAGE_HEADER_SIZE + COMPRESSION_DETAILS_SIZE + compressedMessage.length, 0); // messageLength
+        msgHeader.writeInt32LE(this.command.requestId, 4); // requestID
+        msgHeader.writeInt32LE(0, 8); // responseTo (zero)
+        msgHeader.writeInt32LE(constants_1.OP_COMPRESSED, 12); // opCode
+        // Create the compression details of OP_COMPRESSED
+        const compressionDetails = Buffer.alloc(COMPRESSION_DETAILS_SIZE);
+        compressionDetails.writeInt32LE(originalCommandOpCode, 0); // originalOpcode
+        compressionDetails.writeInt32LE(messageToBeCompressed.length, 4); // Size of the uncompressed compressedMessage, excluding the MsgHeader
+        compressionDetails.writeUInt8(compression_1.Compressor[this.options.agreedCompressor], 8); // compressorID
+        return [msgHeader, compressionDetails, compressedMessage];
+    }
+}
+exports.OpCompressedRequest = OpCompressedRequest;
+//# sourceMappingURL=commands.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/commands.js.map b/backend/node_modules/mongodb/lib/cmap/commands.js.map
new file mode 100644
index 0000000..47dcbf1
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/commands.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/connect.js b/backend/node_modules/mongodb/lib/cmap/connect.js
new file mode 100644
index 0000000..5efde38
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/connect.js
@@ -0,0 +1,366 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.LEGAL_TCP_SOCKET_OPTIONS = exports.LEGAL_TLS_SOCKET_OPTIONS = void 0;
+exports.connect = connect;
+exports.makeConnection = makeConnection;
+exports.performInitialHandshake = performInitialHandshake;
+exports.prepareHandshakeDocument = prepareHandshakeDocument;
+exports.makeSocket = makeSocket;
+const net = require("net");
+const tls = require("tls");
+const constants_1 = require("../constants");
+const deps_1 = require("../deps");
+const error_1 = require("../error");
+const utils_1 = require("../utils");
+const auth_provider_1 = require("./auth/auth_provider");
+const providers_1 = require("./auth/providers");
+const connection_1 = require("./connection");
+const constants_2 = require("./wire_protocol/constants");
+async function connect(options) {
+    let connection = null;
+    try {
+        const socket = await makeSocket(options);
+        connection = makeConnection(options, socket);
+        await performInitialHandshake(connection, options);
+        return connection;
+    }
+    catch (error) {
+        connection?.destroy();
+        throw error;
+    }
+}
+function makeConnection(options, socket) {
+    let ConnectionType = options.connectionType ?? connection_1.Connection;
+    if (options.autoEncrypter) {
+        ConnectionType = connection_1.CryptoConnection;
+    }
+    return new ConnectionType(socket, options);
+}
+function checkSupportedServer(hello, options) {
+    const maxWireVersion = Number(hello.maxWireVersion);
+    const minWireVersion = Number(hello.minWireVersion);
+    const serverVersionHighEnough = !Number.isNaN(maxWireVersion) && maxWireVersion >= constants_2.MIN_SUPPORTED_WIRE_VERSION;
+    const serverVersionLowEnough = !Number.isNaN(minWireVersion) && minWireVersion <= constants_2.MAX_SUPPORTED_WIRE_VERSION;
+    if (serverVersionHighEnough) {
+        if (serverVersionLowEnough) {
+            return null;
+        }
+        const message = `Server at ${options.hostAddress} reports minimum wire version ${JSON.stringify(hello.minWireVersion)}, but this version of the Node.js Driver requires at most ${constants_2.MAX_SUPPORTED_WIRE_VERSION} (MongoDB ${constants_2.MAX_SUPPORTED_SERVER_VERSION})`;
+        return new error_1.MongoCompatibilityError(message);
+    }
+    const message = `Server at ${options.hostAddress} reports maximum wire version ${JSON.stringify(hello.maxWireVersion) ?? 0}, but this version of the Node.js Driver requires at least ${constants_2.MIN_SUPPORTED_WIRE_VERSION} (MongoDB ${constants_2.MIN_SUPPORTED_SERVER_VERSION})`;
+    return new error_1.MongoCompatibilityError(message);
+}
+async function performInitialHandshake(conn, options) {
+    const credentials = options.credentials;
+    if (credentials) {
+        if (!(credentials.mechanism === providers_1.AuthMechanism.MONGODB_DEFAULT) &&
+            !options.authProviders.getOrCreateProvider(credentials.mechanism, credentials.mechanismProperties)) {
+            throw new error_1.MongoInvalidArgumentError(`AuthMechanism '${credentials.mechanism}' not supported`);
+        }
+    }
+    const authContext = new auth_provider_1.AuthContext(conn, credentials, options);
+    conn.authContext = authContext;
+    const handshakeDoc = await prepareHandshakeDocument(authContext);
+    // @ts-expect-error: TODO(NODE-5141): The options need to be filtered properly, Connection options differ from Command options
+    const handshakeOptions = { ...options, raw: false };
+    if (typeof options.connectTimeoutMS === 'number') {
+        // The handshake technically is a monitoring check, so its socket timeout should be connectTimeoutMS
+        handshakeOptions.socketTimeoutMS = options.connectTimeoutMS;
+    }
+    const start = new Date().getTime();
+    const response = await executeHandshake(handshakeDoc, handshakeOptions);
+    if (!('isWritablePrimary' in response)) {
+        // Provide hello-style response document.
+        response.isWritablePrimary = response[constants_1.LEGACY_HELLO_COMMAND];
+    }
+    if (response.helloOk) {
+        conn.helloOk = true;
+    }
+    const supportedServerErr = checkSupportedServer(response, options);
+    if (supportedServerErr) {
+        throw supportedServerErr;
+    }
+    if (options.loadBalanced) {
+        if (!response.serviceId) {
+            throw new error_1.MongoCompatibilityError('Driver attempted to initialize in load balancing mode, ' +
+                'but the server does not support this mode.');
+        }
+    }
+    // NOTE: This is metadata attached to the connection while porting away from
+    //       handshake being done in the `Server` class. Likely, it should be
+    //       relocated, or at very least restructured.
+    conn.hello = response;
+    conn.lastHelloMS = new Date().getTime() - start;
+    if (!response.arbiterOnly && credentials) {
+        // store the response on auth context
+        authContext.response = response;
+        const resolvedCredentials = credentials.resolveAuthMechanism(response);
+        const provider = options.authProviders.getOrCreateProvider(resolvedCredentials.mechanism, resolvedCredentials.mechanismProperties);
+        if (!provider) {
+            throw new error_1.MongoInvalidArgumentError(`No AuthProvider for ${resolvedCredentials.mechanism} defined.`);
+        }
+        try {
+            await provider.auth(authContext);
+        }
+        catch (error) {
+            if (error instanceof error_1.MongoError) {
+                error.addErrorLabel(error_1.MongoErrorLabel.HandshakeError);
+                if ((0, error_1.needsRetryableWriteLabel)(error, response.maxWireVersion, conn.description.type)) {
+                    error.addErrorLabel(error_1.MongoErrorLabel.RetryableWriteError);
+                }
+            }
+            throw error;
+        }
+    }
+    // Connection establishment is socket creation (tcp handshake, tls handshake, MongoDB handshake (saslStart, saslContinue))
+    // Once connection is established, command logging can log events (if enabled)
+    conn.established = true;
+    async function executeHandshake(handshakeDoc, handshakeOptions) {
+        try {
+            const handshakeResponse = await conn.command((0, utils_1.ns)('admin.$cmd'), handshakeDoc, handshakeOptions);
+            return handshakeResponse;
+        }
+        catch (error) {
+            if (error instanceof error_1.MongoError) {
+                error.addErrorLabel(error_1.MongoErrorLabel.HandshakeError);
+            }
+            throw error;
+        }
+    }
+}
+/**
+ * @internal
+ *
+ * This function is only exposed for testing purposes.
+ */
+async function prepareHandshakeDocument(authContext) {
+    const options = authContext.options;
+    const compressors = options.compressors ? options.compressors : [];
+    const { serverApi } = authContext.connection;
+    const clientMetadata = await options.extendedMetadata;
+    const handshakeDoc = {
+        [serverApi?.version || options.loadBalanced === true ? 'hello' : constants_1.LEGACY_HELLO_COMMAND]: 1,
+        helloOk: true,
+        client: clientMetadata,
+        compression: compressors
+    };
+    if (options.loadBalanced === true) {
+        handshakeDoc.loadBalanced = true;
+    }
+    const credentials = authContext.credentials;
+    if (credentials) {
+        if (credentials.mechanism === providers_1.AuthMechanism.MONGODB_DEFAULT && credentials.username) {
+            handshakeDoc.saslSupportedMechs = `${credentials.source}.${credentials.username}`;
+            const provider = authContext.options.authProviders.getOrCreateProvider(providers_1.AuthMechanism.MONGODB_SCRAM_SHA256, credentials.mechanismProperties);
+            if (!provider) {
+                // This auth mechanism is always present.
+                throw new error_1.MongoInvalidArgumentError(`No AuthProvider for ${providers_1.AuthMechanism.MONGODB_SCRAM_SHA256} defined.`);
+            }
+            return await provider.prepare(handshakeDoc, authContext);
+        }
+        const provider = authContext.options.authProviders.getOrCreateProvider(credentials.mechanism, credentials.mechanismProperties);
+        if (!provider) {
+            throw new error_1.MongoInvalidArgumentError(`No AuthProvider for ${credentials.mechanism} defined.`);
+        }
+        return await provider.prepare(handshakeDoc, authContext);
+    }
+    return handshakeDoc;
+}
+/** @public */
+exports.LEGAL_TLS_SOCKET_OPTIONS = [
+    'allowPartialTrustChain',
+    'ALPNProtocols',
+    'ca',
+    'cert',
+    'checkServerIdentity',
+    'ciphers',
+    'crl',
+    'ecdhCurve',
+    'key',
+    'minDHSize',
+    'passphrase',
+    'pfx',
+    'rejectUnauthorized',
+    'secureContext',
+    'secureProtocol',
+    'servername',
+    'session'
+];
+/** @public */
+exports.LEGAL_TCP_SOCKET_OPTIONS = [
+    'autoSelectFamily',
+    'autoSelectFamilyAttemptTimeout',
+    'family',
+    'hints',
+    'localAddress',
+    'localPort',
+    'lookup'
+];
+function parseConnectOptions(options) {
+    const hostAddress = options.hostAddress;
+    if (!hostAddress)
+        throw new error_1.MongoInvalidArgumentError('Option "hostAddress" is required');
+    const result = {};
+    for (const name of exports.LEGAL_TCP_SOCKET_OPTIONS) {
+        if (options[name] != null) {
+            result[name] = options[name];
+        }
+    }
+    if (typeof hostAddress.socketPath === 'string') {
+        result.path = hostAddress.socketPath;
+        return result;
+    }
+    else if (typeof hostAddress.host === 'string') {
+        result.host = hostAddress.host;
+        result.port = hostAddress.port;
+        return result;
+    }
+    else {
+        // This should never happen since we set up HostAddresses
+        // But if we don't throw here the socket could hang until timeout
+        // TODO(NODE-3483)
+        throw new error_1.MongoRuntimeError(`Unexpected HostAddress ${JSON.stringify(hostAddress)}`);
+    }
+}
+function parseSslOptions(options) {
+    const result = parseConnectOptions(options);
+    // Merge in valid SSL options
+    for (const name of exports.LEGAL_TLS_SOCKET_OPTIONS) {
+        if (options[name] != null) {
+            result[name] = options[name];
+        }
+    }
+    if (options.existingSocket) {
+        result.socket = options.existingSocket;
+    }
+    // Set default sni servername to be the same as host
+    if (result.servername == null && result.host && !net.isIP(result.host)) {
+        result.servername = result.host;
+    }
+    return result;
+}
+async function makeSocket(options) {
+    const useTLS = options.tls ?? false;
+    const noDelay = options.noDelay ?? true;
+    const connectTimeoutMS = options.connectTimeoutMS ?? 30000;
+    const existingSocket = options.existingSocket;
+    let socket;
+    if (options.proxyHost != null) {
+        // Currently, only Socks5 is supported.
+        return await makeSocks5Connection({
+            ...options,
+            connectTimeoutMS // Should always be present for Socks5
+        });
+    }
+    if (useTLS) {
+        const tlsSocket = tls.connect(parseSslOptions(options));
+        if (typeof tlsSocket.disableRenegotiation === 'function') {
+            tlsSocket.disableRenegotiation();
+        }
+        socket = tlsSocket;
+    }
+    else if (existingSocket) {
+        // In the TLS case, parseSslOptions() sets options.socket to existingSocket,
+        // so we only need to handle the non-TLS case here (where existingSocket
+        // gives us all we need out of the box).
+        socket = existingSocket;
+    }
+    else {
+        socket = net.createConnection(parseConnectOptions(options));
+    }
+    socket.setKeepAlive(true, 300000);
+    socket.setTimeout(connectTimeoutMS);
+    socket.setNoDelay(noDelay);
+    let cancellationHandler = null;
+    const { promise: connectedSocket, resolve, reject } = (0, utils_1.promiseWithResolvers)();
+    if (existingSocket) {
+        resolve(socket);
+    }
+    else {
+        const start = performance.now();
+        const connectEvent = useTLS ? 'secureConnect' : 'connect';
+        socket
+            .once(connectEvent, () => resolve(socket))
+            .once('error', cause => reject(new error_1.MongoNetworkError(error_1.MongoError.buildErrorMessage(cause), { cause })))
+            .once('timeout', () => {
+            reject(new error_1.MongoNetworkTimeoutError(`Socket '${connectEvent}' timed out after ${(performance.now() - start) | 0}ms (connectTimeoutMS: ${connectTimeoutMS})`));
+        })
+            .once('close', () => reject(new error_1.MongoNetworkError(`Socket closed after ${(performance.now() - start) | 0} during connection establishment`)));
+        if (options.cancellationToken != null) {
+            cancellationHandler = () => reject(new error_1.MongoNetworkError(`Socket connection establishment was cancelled after ${(performance.now() - start) | 0}`));
+            options.cancellationToken.once('cancel', cancellationHandler);
+        }
+    }
+    try {
+        socket = await connectedSocket;
+        return socket;
+    }
+    catch (error) {
+        socket.destroy();
+        throw error;
+    }
+    finally {
+        socket.setTimeout(0);
+        socket.removeAllListeners();
+        if (cancellationHandler != null) {
+            options.cancellationToken?.removeListener('cancel', cancellationHandler);
+        }
+    }
+}
+let socks = null;
+function loadSocks() {
+    if (socks == null) {
+        const socksImport = (0, deps_1.getSocks)();
+        if ('kModuleError' in socksImport) {
+            throw socksImport.kModuleError;
+        }
+        socks = socksImport;
+    }
+    return socks;
+}
+async function makeSocks5Connection(options) {
+    const hostAddress = utils_1.HostAddress.fromHostPort(options.proxyHost ?? '', // proxyHost is guaranteed to set here
+    options.proxyPort ?? 1080);
+    // First, connect to the proxy server itself:
+    const rawSocket = await makeSocket({
+        ...options,
+        hostAddress,
+        tls: false,
+        proxyHost: undefined
+    });
+    const destination = parseConnectOptions(options);
+    if (typeof destination.host !== 'string' || typeof destination.port !== 'number') {
+        throw new error_1.MongoInvalidArgumentError('Can only make Socks5 connections to TCP hosts');
+    }
+    socks ??= loadSocks();
+    let existingSocket;
+    try {
+        // Then, establish the Socks5 proxy connection:
+        const connection = await socks.SocksClient.createConnection({
+            existing_socket: rawSocket,
+            timeout: options.connectTimeoutMS,
+            command: 'connect',
+            destination: {
+                host: destination.host,
+                port: destination.port
+            },
+            proxy: {
+                // host and port are ignored because we pass existing_socket
+                host: 'iLoveJavaScript',
+                port: 0,
+                type: 5,
+                userId: options.proxyUsername || undefined,
+                password: options.proxyPassword || undefined
+            }
+        });
+        existingSocket = connection.socket;
+    }
+    catch (cause) {
+        throw new error_1.MongoNetworkError(error_1.MongoError.buildErrorMessage(cause), { cause });
+    }
+    // Finally, now treat the resulting duplex stream as the
+    // socket over which we send and receive wire protocol messages:
+    return await makeSocket({ ...options, existingSocket, proxyHost: undefined });
+}
+//# sourceMappingURL=connect.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/connect.js.map b/backend/node_modules/mongodb/lib/cmap/connect.js.map
new file mode 100644
index 0000000..414b6e4
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/connect.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/connection.js b/backend/node_modules/mongodb/lib/cmap/connection.js
new file mode 100644
index 0000000..83a5463
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/connection.js
@@ -0,0 +1,547 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.CryptoConnection = exports.SizedMessageTransform = exports.Connection = void 0;
+exports.hasSessionSupport = hasSessionSupport;
+const stream_1 = require("stream");
+const timers_1 = require("timers");
+const bson_1 = require("../bson");
+const constants_1 = require("../constants");
+const error_1 = require("../error");
+const mongo_logger_1 = require("../mongo_logger");
+const mongo_types_1 = require("../mongo_types");
+const read_preference_1 = require("../read_preference");
+const common_1 = require("../sdam/common");
+const sessions_1 = require("../sessions");
+const timeout_1 = require("../timeout");
+const utils_1 = require("../utils");
+const command_monitoring_events_1 = require("./command_monitoring_events");
+const commands_1 = require("./commands");
+const stream_description_1 = require("./stream_description");
+const compression_1 = require("./wire_protocol/compression");
+const on_data_1 = require("./wire_protocol/on_data");
+const responses_1 = require("./wire_protocol/responses");
+const shared_1 = require("./wire_protocol/shared");
+/** @internal */
+function hasSessionSupport(conn) {
+    const description = conn.description;
+    return description.logicalSessionTimeoutMinutes != null;
+}
+function streamIdentifier(stream, options) {
+    if (options.proxyHost) {
+        // If proxy options are specified, the properties of `stream` itself
+        // will not accurately reflect what endpoint this is connected to.
+        return options.hostAddress.toString();
+    }
+    const { remoteAddress, remotePort } = stream;
+    if (typeof remoteAddress === 'string' && typeof remotePort === 'number') {
+        return utils_1.HostAddress.fromHostPort(remoteAddress, remotePort).toString();
+    }
+    return (0, utils_1.uuidV4)().toString('hex');
+}
+/** @internal */
+class Connection extends mongo_types_1.TypedEventEmitter {
+    constructor(stream, options) {
+        super();
+        this.lastHelloMS = -1;
+        this.helloOk = false;
+        this.delayedTimeoutId = null;
+        /** Indicates that the connection (including underlying TCP socket) has been closed. */
+        this.closed = false;
+        this.clusterTime = null;
+        this.error = null;
+        this.dataEvents = null;
+        this.socket = stream;
+        this.id = options.id;
+        this.address = streamIdentifier(stream, options);
+        this.socketTimeoutMS = options.socketTimeoutMS ?? 0;
+        this.monitorCommands = options.monitorCommands;
+        this.serverApi = options.serverApi;
+        this.mongoLogger = options.mongoLogger;
+        this.established = false;
+        this.description = new stream_description_1.StreamDescription(this.address, options);
+        this.generation = options.generation;
+        this.lastUseTime = (0, utils_1.now)();
+        this.messageStream = this.socket
+            .on('error', this.onError.bind(this))
+            .pipe(new SizedMessageTransform({ connection: this }))
+            .on('error', this.onError.bind(this));
+        this.socket.on('close', this.onClose.bind(this));
+        this.socket.on('timeout', this.onTimeout.bind(this));
+        this.messageStream.pause();
+    }
+    get hello() {
+        return this.description.hello;
+    }
+    // the `connect` method stores the result of the handshake hello on the connection
+    set hello(response) {
+        this.description.receiveResponse(response);
+        Object.freeze(this.description);
+    }
+    get serviceId() {
+        return this.hello?.serviceId;
+    }
+    get loadBalanced() {
+        return this.description.loadBalanced;
+    }
+    get idleTime() {
+        return (0, utils_1.calculateDurationInMs)(this.lastUseTime);
+    }
+    get hasSessionSupport() {
+        return this.description.logicalSessionTimeoutMinutes != null;
+    }
+    get supportsOpMsg() {
+        return (this.description != null &&
+            (0, utils_1.maxWireVersion)(this) >= 6 &&
+            !this.description.__nodejs_mock_server__);
+    }
+    get shouldEmitAndLogCommand() {
+        return ((this.monitorCommands ||
+            (this.established &&
+                !this.authContext?.reauthenticating &&
+                this.mongoLogger?.willLog(mongo_logger_1.MongoLoggableComponent.COMMAND, mongo_logger_1.SeverityLevel.DEBUG))) ??
+            false);
+    }
+    markAvailable() {
+        this.lastUseTime = (0, utils_1.now)();
+    }
+    onError(error) {
+        this.cleanup(error);
+    }
+    onClose() {
+        const message = `connection ${this.id} to ${this.address} closed`;
+        this.cleanup(new error_1.MongoNetworkError(message));
+    }
+    onTimeout() {
+        this.delayedTimeoutId = (0, timers_1.setTimeout)(() => {
+            const message = `connection ${this.id} to ${this.address} timed out`;
+            const beforeHandshake = this.hello == null;
+            this.cleanup(new error_1.MongoNetworkTimeoutError(message, { beforeHandshake }));
+        }, 1).unref(); // No need for this timer to hold the event loop open
+    }
+    destroy() {
+        if (this.closed) {
+            return;
+        }
+        // load balanced mode requires that these listeners remain on the connection
+        // after cleanup on timeouts, errors or close so we remove them before calling
+        // cleanup.
+        this.removeAllListeners(Connection.PINNED);
+        this.removeAllListeners(Connection.UNPINNED);
+        const message = `connection ${this.id} to ${this.address} closed`;
+        this.cleanup(new error_1.MongoNetworkError(message));
+    }
+    /**
+     * A method that cleans up the connection.  When `force` is true, this method
+     * forcibly destroys the socket.
+     *
+     * If an error is provided, any in-flight operations will be closed with the error.
+     *
+     * This method does nothing if the connection is already closed.
+     */
+    cleanup(error) {
+        if (this.closed) {
+            return;
+        }
+        this.socket.destroy();
+        this.error = error;
+        this.dataEvents?.throw(error).then(undefined, utils_1.squashError);
+        this.closed = true;
+        this.emit(Connection.CLOSE);
+    }
+    prepareCommand(db, command, options) {
+        let cmd = { ...command };
+        const readPreference = (0, shared_1.getReadPreference)(options);
+        const session = options?.session;
+        let clusterTime = this.clusterTime;
+        if (this.serverApi) {
+            const { version, strict, deprecationErrors } = this.serverApi;
+            cmd.apiVersion = version;
+            if (strict != null)
+                cmd.apiStrict = strict;
+            if (deprecationErrors != null)
+                cmd.apiDeprecationErrors = deprecationErrors;
+        }
+        if (this.hasSessionSupport && session) {
+            if (session.clusterTime &&
+                clusterTime &&
+                session.clusterTime.clusterTime.greaterThan(clusterTime.clusterTime)) {
+                clusterTime = session.clusterTime;
+            }
+            const sessionError = (0, sessions_1.applySession)(session, cmd, options);
+            if (sessionError)
+                throw sessionError;
+        }
+        else if (session?.explicit) {
+            throw new error_1.MongoCompatibilityError('Current topology does not support sessions');
+        }
+        // if we have a known cluster time, gossip it
+        if (clusterTime) {
+            cmd.$clusterTime = clusterTime;
+        }
+        // For standalone, drivers MUST NOT set $readPreference.
+        if (this.description.type !== common_1.ServerType.Standalone) {
+            if (!(0, shared_1.isSharded)(this) &&
+                !this.description.loadBalanced &&
+                this.supportsOpMsg &&
+                options.directConnection === true &&
+                readPreference?.mode === 'primary') {
+                // For mongos and load balancers with 'primary' mode, drivers MUST NOT set $readPreference.
+                // For all other types with a direct connection, if the read preference is 'primary'
+                // (driver sets 'primary' as default if no read preference is configured),
+                // the $readPreference MUST be set to 'primaryPreferred'
+                // to ensure that any server type can handle the request.
+                cmd.$readPreference = read_preference_1.ReadPreference.primaryPreferred.toJSON();
+            }
+            else if ((0, shared_1.isSharded)(this) && !this.supportsOpMsg && readPreference?.mode !== 'primary') {
+                // When sending a read operation via OP_QUERY and the $readPreference modifier,
+                // the query MUST be provided using the $query modifier.
+                cmd = {
+                    $query: cmd,
+                    $readPreference: readPreference.toJSON()
+                };
+            }
+            else if (readPreference?.mode !== 'primary') {
+                // For mode 'primary', drivers MUST NOT set $readPreference.
+                // For all other read preference modes (i.e. 'secondary', 'primaryPreferred', ...),
+                // drivers MUST set $readPreference
+                cmd.$readPreference = readPreference.toJSON();
+            }
+        }
+        const commandOptions = {
+            numberToSkip: 0,
+            numberToReturn: -1,
+            checkKeys: false,
+            // This value is not overridable
+            secondaryOk: readPreference.secondaryOk(),
+            ...options
+        };
+        options.timeoutContext?.addMaxTimeMSToCommand(cmd, options);
+        const message = this.supportsOpMsg
+            ? new commands_1.OpMsgRequest(db, cmd, commandOptions)
+            : new commands_1.OpQueryRequest(db, cmd, commandOptions);
+        return message;
+    }
+    async *sendWire(message, options, responseType) {
+        this.throwIfAborted();
+        const timeout = options.socketTimeoutMS ??
+            options?.timeoutContext?.getSocketTimeoutMS() ??
+            this.socketTimeoutMS;
+        this.socket.setTimeout(timeout);
+        try {
+            await this.writeCommand(message, {
+                agreedCompressor: this.description.compressor ?? 'none',
+                zlibCompressionLevel: this.description.zlibCompressionLevel,
+                timeoutContext: options.timeoutContext
+            });
+            if (options.noResponse || message.moreToCome) {
+                yield responses_1.MongoDBResponse.empty;
+                return;
+            }
+            this.throwIfAborted();
+            if (options.timeoutContext?.csotEnabled() &&
+                options.timeoutContext.minRoundTripTime != null &&
+                options.timeoutContext.remainingTimeMS < options.timeoutContext.minRoundTripTime) {
+                throw new error_1.MongoOperationTimeoutError('Server roundtrip time is greater than the time remaining');
+            }
+            for await (const response of this.readMany({ timeoutContext: options.timeoutContext })) {
+                this.socket.setTimeout(0);
+                const bson = response.parse();
+                const document = (responseType ?? responses_1.MongoDBResponse).make(bson);
+                yield document;
+                this.throwIfAborted();
+                this.socket.setTimeout(timeout);
+            }
+        }
+        finally {
+            this.socket.setTimeout(0);
+        }
+    }
+    async *sendCommand(ns, command, options, responseType) {
+        const message = this.prepareCommand(ns.db, command, options);
+        let started = 0;
+        if (this.shouldEmitAndLogCommand) {
+            started = (0, utils_1.now)();
+            this.emitAndLogCommand(this.monitorCommands, Connection.COMMAND_STARTED, message.databaseName, this.established, new command_monitoring_events_1.CommandStartedEvent(this, message, this.description.serverConnectionId));
+        }
+        // If `documentsReturnedIn` not set or raw is not enabled, use input bson options
+        // Otherwise, support raw flag. Raw only works for cursors that hardcode firstBatch/nextBatch fields
+        const bsonOptions = options.documentsReturnedIn == null || !options.raw
+            ? options
+            : {
+                ...options,
+                raw: false,
+                fieldsAsRaw: { [options.documentsReturnedIn]: true }
+            };
+        /** MongoDBResponse instance or subclass */
+        let document = undefined;
+        /** Cached result of a toObject call */
+        let object = undefined;
+        try {
+            this.throwIfAborted();
+            for await (document of this.sendWire(message, options, responseType)) {
+                object = undefined;
+                if (options.session != null) {
+                    (0, sessions_1.updateSessionFromResponse)(options.session, document);
+                }
+                if (document.$clusterTime) {
+                    this.clusterTime = document.$clusterTime;
+                    this.emit(Connection.CLUSTER_TIME_RECEIVED, document.$clusterTime);
+                }
+                if (document.ok === 0) {
+                    if (options.timeoutContext?.csotEnabled() && document.isMaxTimeExpiredError) {
+                        throw new error_1.MongoOperationTimeoutError('Server reported a timeout error', {
+                            cause: new error_1.MongoServerError((object ??= document.toObject(bsonOptions)))
+                        });
+                    }
+                    throw new error_1.MongoServerError((object ??= document.toObject(bsonOptions)));
+                }
+                if (this.shouldEmitAndLogCommand) {
+                    this.emitAndLogCommand(this.monitorCommands, Connection.COMMAND_SUCCEEDED, message.databaseName, this.established, new command_monitoring_events_1.CommandSucceededEvent(this, message, options.noResponse
+                        ? undefined
+                        : message.moreToCome
+                            ? { ok: 1 }
+                            : (object ??= document.toObject(bsonOptions)), started, this.description.serverConnectionId));
+                }
+                if (responseType == null) {
+                    yield (object ??= document.toObject(bsonOptions));
+                }
+                else {
+                    yield document;
+                }
+                this.throwIfAborted();
+            }
+        }
+        catch (error) {
+            if (this.shouldEmitAndLogCommand) {
+                this.emitAndLogCommand(this.monitorCommands, Connection.COMMAND_FAILED, message.databaseName, this.established, new command_monitoring_events_1.CommandFailedEvent(this, message, error, started, this.description.serverConnectionId));
+            }
+            throw error;
+        }
+    }
+    async command(ns, command, options = {}, responseType) {
+        this.throwIfAborted();
+        for await (const document of this.sendCommand(ns, command, options, responseType)) {
+            if (options.timeoutContext?.csotEnabled()) {
+                if (responses_1.MongoDBResponse.is(document)) {
+                    if (document.isMaxTimeExpiredError) {
+                        throw new error_1.MongoOperationTimeoutError('Server reported a timeout error', {
+                            cause: new error_1.MongoServerError(document.toObject())
+                        });
+                    }
+                }
+                else {
+                    if ((Array.isArray(document?.writeErrors) &&
+                        document.writeErrors.some(error => error?.code === error_1.MONGODB_ERROR_CODES.MaxTimeMSExpired)) ||
+                        document?.writeConcernError?.code === error_1.MONGODB_ERROR_CODES.MaxTimeMSExpired) {
+                        throw new error_1.MongoOperationTimeoutError('Server reported a timeout error', {
+                            cause: new error_1.MongoServerError(document)
+                        });
+                    }
+                }
+            }
+            return document;
+        }
+        throw new error_1.MongoUnexpectedServerResponseError('Unable to get response from server');
+    }
+    exhaustCommand(ns, command, options, replyListener) {
+        const exhaustLoop = async () => {
+            this.throwIfAborted();
+            for await (const reply of this.sendCommand(ns, command, options)) {
+                replyListener(undefined, reply);
+                this.throwIfAborted();
+            }
+            throw new error_1.MongoUnexpectedServerResponseError('Server ended moreToCome unexpectedly');
+        };
+        exhaustLoop().then(undefined, replyListener);
+    }
+    throwIfAborted() {
+        if (this.error)
+            throw this.error;
+    }
+    /**
+     * @internal
+     *
+     * Writes an OP_MSG or OP_QUERY request to the socket, optionally compressing the command. This method
+     * waits until the socket's buffer has emptied (the Nodejs socket `drain` event has fired).
+     */
+    async writeCommand(command, options) {
+        const finalCommand = options.agreedCompressor === 'none' || !commands_1.OpCompressedRequest.canCompress(command)
+            ? command
+            : new commands_1.OpCompressedRequest(command, {
+                agreedCompressor: options.agreedCompressor ?? 'none',
+                zlibCompressionLevel: options.zlibCompressionLevel ?? 0
+            });
+        const buffer = Buffer.concat(await finalCommand.toBin());
+        if (options.timeoutContext?.csotEnabled()) {
+            if (options.timeoutContext.minRoundTripTime != null &&
+                options.timeoutContext.remainingTimeMS < options.timeoutContext.minRoundTripTime) {
+                throw new error_1.MongoOperationTimeoutError('Server roundtrip time is greater than the time remaining');
+            }
+        }
+        if (this.socket.write(buffer))
+            return;
+        const drainEvent = (0, utils_1.once)(this.socket, 'drain');
+        const timeout = options?.timeoutContext?.timeoutForSocketWrite;
+        if (timeout) {
+            try {
+                return await Promise.race([drainEvent, timeout]);
+            }
+            catch (error) {
+                let err = error;
+                if (timeout_1.TimeoutError.is(error)) {
+                    err = new error_1.MongoOperationTimeoutError('Timed out at socket write');
+                    this.cleanup(err);
+                }
+                throw error;
+            }
+            finally {
+                timeout.clear();
+            }
+        }
+        return await drainEvent;
+    }
+    /**
+     * @internal
+     *
+     * Returns an async generator that yields full wire protocol messages from the underlying socket.  This function
+     * yields messages until `moreToCome` is false or not present in a response, or the caller cancels the request
+     * by calling `return` on the generator.
+     *
+     * Note that `for-await` loops call `return` automatically when the loop is exited.
+     */
+    async *readMany(options) {
+        try {
+            this.dataEvents = (0, on_data_1.onData)(this.messageStream, options);
+            this.messageStream.resume();
+            for await (const message of this.dataEvents) {
+                const response = await (0, compression_1.decompressResponse)(message);
+                yield response;
+                if (!response.moreToCome) {
+                    return;
+                }
+            }
+        }
+        catch (readError) {
+            const err = readError;
+            if (timeout_1.TimeoutError.is(readError)) {
+                const error = new error_1.MongoOperationTimeoutError(`Timed out during socket read (${readError.duration}ms)`);
+                this.dataEvents = null;
+                this.onError(error);
+                throw error;
+            }
+            throw err;
+        }
+        finally {
+            this.dataEvents = null;
+            this.messageStream.pause();
+            this.throwIfAborted();
+        }
+    }
+}
+exports.Connection = Connection;
+/** @event */
+Connection.COMMAND_STARTED = constants_1.COMMAND_STARTED;
+/** @event */
+Connection.COMMAND_SUCCEEDED = constants_1.COMMAND_SUCCEEDED;
+/** @event */
+Connection.COMMAND_FAILED = constants_1.COMMAND_FAILED;
+/** @event */
+Connection.CLUSTER_TIME_RECEIVED = constants_1.CLUSTER_TIME_RECEIVED;
+/** @event */
+Connection.CLOSE = constants_1.CLOSE;
+/** @event */
+Connection.PINNED = constants_1.PINNED;
+/** @event */
+Connection.UNPINNED = constants_1.UNPINNED;
+/** @internal */
+class SizedMessageTransform extends stream_1.Transform {
+    constructor({ connection }) {
+        super({ writableObjectMode: false, readableObjectMode: true });
+        this.bufferPool = new utils_1.BufferPool();
+        this.connection = connection;
+    }
+    _transform(chunk, encoding, callback) {
+        if (this.connection.delayedTimeoutId != null) {
+            (0, timers_1.clearTimeout)(this.connection.delayedTimeoutId);
+            this.connection.delayedTimeoutId = null;
+        }
+        this.bufferPool.append(chunk);
+        const sizeOfMessage = this.bufferPool.getInt32();
+        if (sizeOfMessage == null) {
+            return callback();
+        }
+        if (sizeOfMessage < 0) {
+            return callback(new error_1.MongoParseError(`Invalid message size: ${sizeOfMessage}, too small`));
+        }
+        if (sizeOfMessage > this.bufferPool.length) {
+            return callback();
+        }
+        const message = this.bufferPool.read(sizeOfMessage);
+        return callback(null, message);
+    }
+}
+exports.SizedMessageTransform = SizedMessageTransform;
+/** @internal */
+class CryptoConnection extends Connection {
+    constructor(stream, options) {
+        super(stream, options);
+        this.autoEncrypter = options.autoEncrypter;
+    }
+    async command(ns, cmd, options, responseType) {
+        const { autoEncrypter } = this;
+        if (!autoEncrypter) {
+            // TODO(NODE-6065): throw a MongoRuntimeError in Node V7
+            // @ts-expect-error No cause provided because there is no underlying error.
+            throw new error_1.MongoMissingDependencyError('No AutoEncrypter available for encryption', {
+                dependencyName: 'n/a'
+            });
+        }
+        const serverWireVersion = (0, utils_1.maxWireVersion)(this);
+        if (serverWireVersion === 0) {
+            // This means the initial handshake hasn't happened yet
+            return await super.command(ns, cmd, options, responseType);
+        }
+        if (serverWireVersion < 8) {
+            throw new error_1.MongoCompatibilityError('Auto-encryption requires a minimum MongoDB version of 4.2');
+        }
+        // Save sort or indexKeys based on the command being run
+        // the encrypt API serializes our JS objects to BSON to pass to the native code layer
+        // and then deserializes the encrypted result, the protocol level components
+        // of the command (ex. sort) are then converted to JS objects potentially losing
+        // import key order information. These fields are never encrypted so we can save the values
+        // from before the encryption and replace them after encryption has been performed
+        const sort = cmd.find || cmd.findAndModify ? cmd.sort : null;
+        const indexKeys = cmd.createIndexes
+            ? cmd.indexes.map((index) => index.key)
+            : null;
+        const encrypted = await autoEncrypter.encrypt(ns.toString(), cmd, options);
+        // Replace the saved values
+        if (sort != null && (cmd.find || cmd.findAndModify)) {
+            encrypted.sort = sort;
+        }
+        if (indexKeys != null && cmd.createIndexes) {
+            for (const [offset, index] of indexKeys.entries()) {
+                // @ts-expect-error `encrypted` is a generic "command", but we've narrowed for only `createIndexes` commands here
+                encrypted.indexes[offset].key = index;
+            }
+        }
+        const encryptedResponse = await super.command(ns, encrypted, options, 
+        // Eventually we want to require `responseType` which means we would satisfy `T` as the return type.
+        // In the meantime, we want encryptedResponse to always be _at least_ a MongoDBResponse if not a more specific subclass
+        // So that we can ensure we have access to the on-demand APIs for decorate response
+        responseType ?? responses_1.MongoDBResponse);
+        const result = await autoEncrypter.decrypt(encryptedResponse.toBytes(), options);
+        const decryptedResponse = responseType?.make(result) ?? (0, bson_1.deserialize)(result, options);
+        if (autoEncrypter[constants_1.kDecorateResult]) {
+            if (responseType == null) {
+                (0, utils_1.decorateDecryptionResult)(decryptedResponse, encryptedResponse.toObject(), true);
+            }
+            else if (decryptedResponse instanceof responses_1.CursorResponse) {
+                decryptedResponse.encryptedResponse = encryptedResponse;
+            }
+        }
+        return decryptedResponse;
+    }
+}
+exports.CryptoConnection = CryptoConnection;
+//# sourceMappingURL=connection.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/connection.js.map b/backend/node_modules/mongodb/lib/cmap/connection.js.map
new file mode 100644
index 0000000..be865ad
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/connection.js.map
@@ -0,0 +1 @@
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diff --git a/backend/node_modules/mongodb/lib/cmap/connection_pool.js b/backend/node_modules/mongodb/lib/cmap/connection_pool.js
new file mode 100644
index 0000000..94fe28c
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/connection_pool.js
@@ -0,0 +1,577 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ConnectionPool = exports.PoolState = void 0;
+const timers_1 = require("timers");
+const constants_1 = require("../constants");
+const error_1 = require("../error");
+const mongo_types_1 = require("../mongo_types");
+const timeout_1 = require("../timeout");
+const utils_1 = require("../utils");
+const connect_1 = require("./connect");
+const connection_1 = require("./connection");
+const connection_pool_events_1 = require("./connection_pool_events");
+const errors_1 = require("./errors");
+const metrics_1 = require("./metrics");
+/** @internal */
+const kServer = Symbol('server');
+/** @internal */
+const kConnections = Symbol('connections');
+/** @internal */
+const kPending = Symbol('pending');
+/** @internal */
+const kCheckedOut = Symbol('checkedOut');
+/** @internal */
+const kMinPoolSizeTimer = Symbol('minPoolSizeTimer');
+/** @internal */
+const kGeneration = Symbol('generation');
+/** @internal */
+const kServiceGenerations = Symbol('serviceGenerations');
+/** @internal */
+const kConnectionCounter = Symbol('connectionCounter');
+/** @internal */
+const kCancellationToken = Symbol('cancellationToken');
+/** @internal */
+const kWaitQueue = Symbol('waitQueue');
+/** @internal */
+const kCancelled = Symbol('cancelled');
+/** @internal */
+const kMetrics = Symbol('metrics');
+/** @internal */
+const kProcessingWaitQueue = Symbol('processingWaitQueue');
+/** @internal */
+const kPoolState = Symbol('poolState');
+/** @internal */
+exports.PoolState = Object.freeze({
+    paused: 'paused',
+    ready: 'ready',
+    closed: 'closed'
+});
+/**
+ * A pool of connections which dynamically resizes, and emit events related to pool activity
+ * @internal
+ */
+class ConnectionPool extends mongo_types_1.TypedEventEmitter {
+    constructor(server, options) {
+        super();
+        this.options = Object.freeze({
+            connectionType: connection_1.Connection,
+            ...options,
+            maxPoolSize: options.maxPoolSize ?? 100,
+            minPoolSize: options.minPoolSize ?? 0,
+            maxConnecting: options.maxConnecting ?? 2,
+            maxIdleTimeMS: options.maxIdleTimeMS ?? 0,
+            waitQueueTimeoutMS: options.waitQueueTimeoutMS ?? 0,
+            minPoolSizeCheckFrequencyMS: options.minPoolSizeCheckFrequencyMS ?? 100,
+            autoEncrypter: options.autoEncrypter
+        });
+        if (this.options.minPoolSize > this.options.maxPoolSize) {
+            throw new error_1.MongoInvalidArgumentError('Connection pool minimum size must not be greater than maximum pool size');
+        }
+        this[kPoolState] = exports.PoolState.paused;
+        this[kServer] = server;
+        this[kConnections] = new utils_1.List();
+        this[kPending] = 0;
+        this[kCheckedOut] = new Set();
+        this[kMinPoolSizeTimer] = undefined;
+        this[kGeneration] = 0;
+        this[kServiceGenerations] = new Map();
+        this[kConnectionCounter] = (0, utils_1.makeCounter)(1);
+        this[kCancellationToken] = new mongo_types_1.CancellationToken();
+        this[kCancellationToken].setMaxListeners(Infinity);
+        this[kWaitQueue] = new utils_1.List();
+        this[kMetrics] = new metrics_1.ConnectionPoolMetrics();
+        this[kProcessingWaitQueue] = false;
+        this.mongoLogger = this[kServer].topology.client?.mongoLogger;
+        this.component = 'connection';
+        process.nextTick(() => {
+            this.emitAndLog(ConnectionPool.CONNECTION_POOL_CREATED, new connection_pool_events_1.ConnectionPoolCreatedEvent(this));
+        });
+    }
+    /** The address of the endpoint the pool is connected to */
+    get address() {
+        return this.options.hostAddress.toString();
+    }
+    /**
+     * Check if the pool has been closed
+     *
+     * TODO(NODE-3263): We can remove this property once shell no longer needs it
+     */
+    get closed() {
+        return this[kPoolState] === exports.PoolState.closed;
+    }
+    /** An integer representing the SDAM generation of the pool */
+    get generation() {
+        return this[kGeneration];
+    }
+    /** An integer expressing how many total connections (available + pending + in use) the pool currently has */
+    get totalConnectionCount() {
+        return (this.availableConnectionCount + this.pendingConnectionCount + this.currentCheckedOutCount);
+    }
+    /** An integer expressing how many connections are currently available in the pool. */
+    get availableConnectionCount() {
+        return this[kConnections].length;
+    }
+    get pendingConnectionCount() {
+        return this[kPending];
+    }
+    get currentCheckedOutCount() {
+        return this[kCheckedOut].size;
+    }
+    get waitQueueSize() {
+        return this[kWaitQueue].length;
+    }
+    get loadBalanced() {
+        return this.options.loadBalanced;
+    }
+    get serviceGenerations() {
+        return this[kServiceGenerations];
+    }
+    get serverError() {
+        return this[kServer].description.error;
+    }
+    /**
+     * This is exposed ONLY for use in mongosh, to enable
+     * killing all connections if a user quits the shell with
+     * operations in progress.
+     *
+     * This property may be removed as a part of NODE-3263.
+     */
+    get checkedOutConnections() {
+        return this[kCheckedOut];
+    }
+    /**
+     * Get the metrics information for the pool when a wait queue timeout occurs.
+     */
+    waitQueueErrorMetrics() {
+        return this[kMetrics].info(this.options.maxPoolSize);
+    }
+    /**
+     * Set the pool state to "ready"
+     */
+    ready() {
+        if (this[kPoolState] !== exports.PoolState.paused) {
+            return;
+        }
+        this[kPoolState] = exports.PoolState.ready;
+        this.emitAndLog(ConnectionPool.CONNECTION_POOL_READY, new connection_pool_events_1.ConnectionPoolReadyEvent(this));
+        (0, timers_1.clearTimeout)(this[kMinPoolSizeTimer]);
+        this.ensureMinPoolSize();
+    }
+    /**
+     * Check a connection out of this pool. The connection will continue to be tracked, but no reference to it
+     * will be held by the pool. This means that if a connection is checked out it MUST be checked back in or
+     * explicitly destroyed by the new owner.
+     */
+    async checkOut(options) {
+        const checkoutTime = (0, utils_1.now)();
+        this.emitAndLog(ConnectionPool.CONNECTION_CHECK_OUT_STARTED, new connection_pool_events_1.ConnectionCheckOutStartedEvent(this));
+        const { promise, resolve, reject } = (0, utils_1.promiseWithResolvers)();
+        const timeout = options.timeoutContext.connectionCheckoutTimeout;
+        const waitQueueMember = {
+            resolve,
+            reject,
+            checkoutTime
+        };
+        this[kWaitQueue].push(waitQueueMember);
+        process.nextTick(() => this.processWaitQueue());
+        try {
+            timeout?.throwIfExpired();
+            return await (timeout ? Promise.race([promise, timeout]) : promise);
+        }
+        catch (error) {
+            if (timeout_1.TimeoutError.is(error)) {
+                timeout?.clear();
+                waitQueueMember[kCancelled] = true;
+                this.emitAndLog(ConnectionPool.CONNECTION_CHECK_OUT_FAILED, new connection_pool_events_1.ConnectionCheckOutFailedEvent(this, 'timeout', waitQueueMember.checkoutTime));
+                const timeoutError = new errors_1.WaitQueueTimeoutError(this.loadBalanced
+                    ? this.waitQueueErrorMetrics()
+                    : 'Timed out while checking out a connection from connection pool', this.address);
+                if (options.timeoutContext.csotEnabled()) {
+                    throw new error_1.MongoOperationTimeoutError('Timed out during connection checkout', {
+                        cause: timeoutError
+                    });
+                }
+                throw timeoutError;
+            }
+            throw error;
+        }
+        finally {
+            timeout?.clear();
+        }
+    }
+    /**
+     * Check a connection into the pool.
+     *
+     * @param connection - The connection to check in
+     */
+    checkIn(connection) {
+        if (!this[kCheckedOut].has(connection)) {
+            return;
+        }
+        const poolClosed = this.closed;
+        const stale = this.connectionIsStale(connection);
+        const willDestroy = !!(poolClosed || stale || connection.closed);
+        if (!willDestroy) {
+            connection.markAvailable();
+            this[kConnections].unshift(connection);
+        }
+        this[kCheckedOut].delete(connection);
+        this.emitAndLog(ConnectionPool.CONNECTION_CHECKED_IN, new connection_pool_events_1.ConnectionCheckedInEvent(this, connection));
+        if (willDestroy) {
+            const reason = connection.closed ? 'error' : poolClosed ? 'poolClosed' : 'stale';
+            this.destroyConnection(connection, reason);
+        }
+        process.nextTick(() => this.processWaitQueue());
+    }
+    /**
+     * Clear the pool
+     *
+     * Pool reset is handled by incrementing the pool's generation count. Any existing connection of a
+     * previous generation will eventually be pruned during subsequent checkouts.
+     */
+    clear(options = {}) {
+        if (this.closed) {
+            return;
+        }
+        // handle load balanced case
+        if (this.loadBalanced) {
+            const { serviceId } = options;
+            if (!serviceId) {
+                throw new error_1.MongoRuntimeError('ConnectionPool.clear() called in load balanced mode with no serviceId.');
+            }
+            const sid = serviceId.toHexString();
+            const generation = this.serviceGenerations.get(sid);
+            // Only need to worry if the generation exists, since it should
+            // always be there but typescript needs the check.
+            if (generation == null) {
+                throw new error_1.MongoRuntimeError('Service generations are required in load balancer mode.');
+            }
+            else {
+                // Increment the generation for the service id.
+                this.serviceGenerations.set(sid, generation + 1);
+            }
+            this.emitAndLog(ConnectionPool.CONNECTION_POOL_CLEARED, new connection_pool_events_1.ConnectionPoolClearedEvent(this, { serviceId }));
+            return;
+        }
+        // handle non load-balanced case
+        const interruptInUseConnections = options.interruptInUseConnections ?? false;
+        const oldGeneration = this[kGeneration];
+        this[kGeneration] += 1;
+        const alreadyPaused = this[kPoolState] === exports.PoolState.paused;
+        this[kPoolState] = exports.PoolState.paused;
+        this.clearMinPoolSizeTimer();
+        if (!alreadyPaused) {
+            this.emitAndLog(ConnectionPool.CONNECTION_POOL_CLEARED, new connection_pool_events_1.ConnectionPoolClearedEvent(this, {
+                interruptInUseConnections
+            }));
+        }
+        if (interruptInUseConnections) {
+            process.nextTick(() => this.interruptInUseConnections(oldGeneration));
+        }
+        this.processWaitQueue();
+    }
+    /**
+     * Closes all stale in-use connections in the pool with a resumable PoolClearedOnNetworkError.
+     *
+     * Only connections where `connection.generation <= minGeneration` are killed.
+     */
+    interruptInUseConnections(minGeneration) {
+        for (const connection of this[kCheckedOut]) {
+            if (connection.generation <= minGeneration) {
+                connection.onError(new errors_1.PoolClearedOnNetworkError(this));
+                this.checkIn(connection);
+            }
+        }
+    }
+    /** Close the pool */
+    close() {
+        if (this.closed) {
+            return;
+        }
+        // immediately cancel any in-flight connections
+        this[kCancellationToken].emit('cancel');
+        // end the connection counter
+        if (typeof this[kConnectionCounter].return === 'function') {
+            this[kConnectionCounter].return(undefined);
+        }
+        this[kPoolState] = exports.PoolState.closed;
+        this.clearMinPoolSizeTimer();
+        this.processWaitQueue();
+        for (const conn of this[kConnections]) {
+            this.emitAndLog(ConnectionPool.CONNECTION_CLOSED, new connection_pool_events_1.ConnectionClosedEvent(this, conn, 'poolClosed'));
+            conn.destroy();
+        }
+        this[kConnections].clear();
+        this.emitAndLog(ConnectionPool.CONNECTION_POOL_CLOSED, new connection_pool_events_1.ConnectionPoolClosedEvent(this));
+    }
+    /**
+     * @internal
+     * Reauthenticate a connection
+     */
+    async reauthenticate(connection) {
+        const authContext = connection.authContext;
+        if (!authContext) {
+            throw new error_1.MongoRuntimeError('No auth context found on connection.');
+        }
+        const credentials = authContext.credentials;
+        if (!credentials) {
+            throw new error_1.MongoMissingCredentialsError('Connection is missing credentials when asked to reauthenticate');
+        }
+        const resolvedCredentials = credentials.resolveAuthMechanism(connection.hello);
+        const provider = this[kServer].topology.client.s.authProviders.getOrCreateProvider(resolvedCredentials.mechanism, resolvedCredentials.mechanismProperties);
+        if (!provider) {
+            throw new error_1.MongoMissingCredentialsError(`Reauthenticate failed due to no auth provider for ${credentials.mechanism}`);
+        }
+        await provider.reauth(authContext);
+        return;
+    }
+    /** Clear the min pool size timer */
+    clearMinPoolSizeTimer() {
+        const minPoolSizeTimer = this[kMinPoolSizeTimer];
+        if (minPoolSizeTimer) {
+            (0, timers_1.clearTimeout)(minPoolSizeTimer);
+        }
+    }
+    destroyConnection(connection, reason) {
+        this.emitAndLog(ConnectionPool.CONNECTION_CLOSED, new connection_pool_events_1.ConnectionClosedEvent(this, connection, reason));
+        // destroy the connection
+        connection.destroy();
+    }
+    connectionIsStale(connection) {
+        const serviceId = connection.serviceId;
+        if (this.loadBalanced && serviceId) {
+            const sid = serviceId.toHexString();
+            const generation = this.serviceGenerations.get(sid);
+            return connection.generation !== generation;
+        }
+        return connection.generation !== this[kGeneration];
+    }
+    connectionIsIdle(connection) {
+        return !!(this.options.maxIdleTimeMS && connection.idleTime > this.options.maxIdleTimeMS);
+    }
+    /**
+     * Destroys a connection if the connection is perished.
+     *
+     * @returns `true` if the connection was destroyed, `false` otherwise.
+     */
+    destroyConnectionIfPerished(connection) {
+        const isStale = this.connectionIsStale(connection);
+        const isIdle = this.connectionIsIdle(connection);
+        if (!isStale && !isIdle && !connection.closed) {
+            return false;
+        }
+        const reason = connection.closed ? 'error' : isStale ? 'stale' : 'idle';
+        this.destroyConnection(connection, reason);
+        return true;
+    }
+    createConnection(callback) {
+        const connectOptions = {
+            ...this.options,
+            id: this[kConnectionCounter].next().value,
+            generation: this[kGeneration],
+            cancellationToken: this[kCancellationToken],
+            mongoLogger: this.mongoLogger,
+            authProviders: this[kServer].topology.client.s.authProviders
+        };
+        this[kPending]++;
+        // This is our version of a "virtual" no-I/O connection as the spec requires
+        const connectionCreatedTime = (0, utils_1.now)();
+        this.emitAndLog(ConnectionPool.CONNECTION_CREATED, new connection_pool_events_1.ConnectionCreatedEvent(this, { id: connectOptions.id }));
+        (0, connect_1.connect)(connectOptions).then(connection => {
+            // The pool might have closed since we started trying to create a connection
+            if (this[kPoolState] !== exports.PoolState.ready) {
+                this[kPending]--;
+                connection.destroy();
+                callback(this.closed ? new errors_1.PoolClosedError(this) : new errors_1.PoolClearedError(this));
+                return;
+            }
+            // forward all events from the connection to the pool
+            for (const event of [...constants_1.APM_EVENTS, connection_1.Connection.CLUSTER_TIME_RECEIVED]) {
+                connection.on(event, (e) => this.emit(event, e));
+            }
+            if (this.loadBalanced) {
+                connection.on(connection_1.Connection.PINNED, pinType => this[kMetrics].markPinned(pinType));
+                connection.on(connection_1.Connection.UNPINNED, pinType => this[kMetrics].markUnpinned(pinType));
+                const serviceId = connection.serviceId;
+                if (serviceId) {
+                    let generation;
+                    const sid = serviceId.toHexString();
+                    if ((generation = this.serviceGenerations.get(sid))) {
+                        connection.generation = generation;
+                    }
+                    else {
+                        this.serviceGenerations.set(sid, 0);
+                        connection.generation = 0;
+                    }
+                }
+            }
+            connection.markAvailable();
+            this.emitAndLog(ConnectionPool.CONNECTION_READY, new connection_pool_events_1.ConnectionReadyEvent(this, connection, connectionCreatedTime));
+            this[kPending]--;
+            callback(undefined, connection);
+        }, error => {
+            this[kPending]--;
+            this[kServer].handleError(error);
+            this.emitAndLog(ConnectionPool.CONNECTION_CLOSED, new connection_pool_events_1.ConnectionClosedEvent(this, { id: connectOptions.id, serviceId: undefined }, 'error', 
+            // TODO(NODE-5192): Remove this cast
+            error));
+            if (error instanceof error_1.MongoNetworkError || error instanceof error_1.MongoServerError) {
+                error.connectionGeneration = connectOptions.generation;
+            }
+            callback(error ?? new error_1.MongoRuntimeError('Connection creation failed without error'));
+        });
+    }
+    ensureMinPoolSize() {
+        const minPoolSize = this.options.minPoolSize;
+        if (this[kPoolState] !== exports.PoolState.ready || minPoolSize === 0) {
+            return;
+        }
+        this[kConnections].prune(connection => this.destroyConnectionIfPerished(connection));
+        if (this.totalConnectionCount < minPoolSize &&
+            this.pendingConnectionCount < this.options.maxConnecting) {
+            // NOTE: ensureMinPoolSize should not try to get all the pending
+            // connection permits because that potentially delays the availability of
+            // the connection to a checkout request
+            this.createConnection((err, connection) => {
+                if (!err && connection) {
+                    this[kConnections].push(connection);
+                    process.nextTick(() => this.processWaitQueue());
+                }
+                if (this[kPoolState] === exports.PoolState.ready) {
+                    (0, timers_1.clearTimeout)(this[kMinPoolSizeTimer]);
+                    this[kMinPoolSizeTimer] = (0, timers_1.setTimeout)(() => this.ensureMinPoolSize(), this.options.minPoolSizeCheckFrequencyMS);
+                }
+            });
+        }
+        else {
+            (0, timers_1.clearTimeout)(this[kMinPoolSizeTimer]);
+            this[kMinPoolSizeTimer] = (0, timers_1.setTimeout)(() => this.ensureMinPoolSize(), this.options.minPoolSizeCheckFrequencyMS);
+        }
+    }
+    processWaitQueue() {
+        if (this[kProcessingWaitQueue]) {
+            return;
+        }
+        this[kProcessingWaitQueue] = true;
+        while (this.waitQueueSize) {
+            const waitQueueMember = this[kWaitQueue].first();
+            if (!waitQueueMember) {
+                this[kWaitQueue].shift();
+                continue;
+            }
+            if (waitQueueMember[kCancelled]) {
+                this[kWaitQueue].shift();
+                continue;
+            }
+            if (this[kPoolState] !== exports.PoolState.ready) {
+                const reason = this.closed ? 'poolClosed' : 'connectionError';
+                const error = this.closed ? new errors_1.PoolClosedError(this) : new errors_1.PoolClearedError(this);
+                this.emitAndLog(ConnectionPool.CONNECTION_CHECK_OUT_FAILED, new connection_pool_events_1.ConnectionCheckOutFailedEvent(this, reason, waitQueueMember.checkoutTime, error));
+                this[kWaitQueue].shift();
+                waitQueueMember.reject(error);
+                continue;
+            }
+            if (!this.availableConnectionCount) {
+                break;
+            }
+            const connection = this[kConnections].shift();
+            if (!connection) {
+                break;
+            }
+            if (!this.destroyConnectionIfPerished(connection)) {
+                this[kCheckedOut].add(connection);
+                this.emitAndLog(ConnectionPool.CONNECTION_CHECKED_OUT, new connection_pool_events_1.ConnectionCheckedOutEvent(this, connection, waitQueueMember.checkoutTime));
+                this[kWaitQueue].shift();
+                waitQueueMember.resolve(connection);
+            }
+        }
+        const { maxPoolSize, maxConnecting } = this.options;
+        while (this.waitQueueSize > 0 &&
+            this.pendingConnectionCount < maxConnecting &&
+            (maxPoolSize === 0 || this.totalConnectionCount < maxPoolSize)) {
+            const waitQueueMember = this[kWaitQueue].shift();
+            if (!waitQueueMember || waitQueueMember[kCancelled]) {
+                continue;
+            }
+            this.createConnection((err, connection) => {
+                if (waitQueueMember[kCancelled]) {
+                    if (!err && connection) {
+                        this[kConnections].push(connection);
+                    }
+                }
+                else {
+                    if (err) {
+                        this.emitAndLog(ConnectionPool.CONNECTION_CHECK_OUT_FAILED, 
+                        // TODO(NODE-5192): Remove this cast
+                        new connection_pool_events_1.ConnectionCheckOutFailedEvent(this, 'connectionError', waitQueueMember.checkoutTime, err));
+                        waitQueueMember.reject(err);
+                    }
+                    else if (connection) {
+                        this[kCheckedOut].add(connection);
+                        this.emitAndLog(ConnectionPool.CONNECTION_CHECKED_OUT, new connection_pool_events_1.ConnectionCheckedOutEvent(this, connection, waitQueueMember.checkoutTime));
+                        waitQueueMember.resolve(connection);
+                    }
+                }
+                process.nextTick(() => this.processWaitQueue());
+            });
+        }
+        this[kProcessingWaitQueue] = false;
+    }
+}
+exports.ConnectionPool = ConnectionPool;
+/**
+ * Emitted when the connection pool is created.
+ * @event
+ */
+ConnectionPool.CONNECTION_POOL_CREATED = constants_1.CONNECTION_POOL_CREATED;
+/**
+ * Emitted once when the connection pool is closed
+ * @event
+ */
+ConnectionPool.CONNECTION_POOL_CLOSED = constants_1.CONNECTION_POOL_CLOSED;
+/**
+ * Emitted each time the connection pool is cleared and it's generation incremented
+ * @event
+ */
+ConnectionPool.CONNECTION_POOL_CLEARED = constants_1.CONNECTION_POOL_CLEARED;
+/**
+ * Emitted each time the connection pool is marked ready
+ * @event
+ */
+ConnectionPool.CONNECTION_POOL_READY = constants_1.CONNECTION_POOL_READY;
+/**
+ * Emitted when a connection is created.
+ * @event
+ */
+ConnectionPool.CONNECTION_CREATED = constants_1.CONNECTION_CREATED;
+/**
+ * Emitted when a connection becomes established, and is ready to use
+ * @event
+ */
+ConnectionPool.CONNECTION_READY = constants_1.CONNECTION_READY;
+/**
+ * Emitted when a connection is closed
+ * @event
+ */
+ConnectionPool.CONNECTION_CLOSED = constants_1.CONNECTION_CLOSED;
+/**
+ * Emitted when an attempt to check out a connection begins
+ * @event
+ */
+ConnectionPool.CONNECTION_CHECK_OUT_STARTED = constants_1.CONNECTION_CHECK_OUT_STARTED;
+/**
+ * Emitted when an attempt to check out a connection fails
+ * @event
+ */
+ConnectionPool.CONNECTION_CHECK_OUT_FAILED = constants_1.CONNECTION_CHECK_OUT_FAILED;
+/**
+ * Emitted each time a connection is successfully checked out of the connection pool
+ * @event
+ */
+ConnectionPool.CONNECTION_CHECKED_OUT = constants_1.CONNECTION_CHECKED_OUT;
+/**
+ * Emitted each time a connection is successfully checked into the connection pool
+ * @event
+ */
+ConnectionPool.CONNECTION_CHECKED_IN = constants_1.CONNECTION_CHECKED_IN;
+//# sourceMappingURL=connection_pool.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/connection_pool.js.map b/backend/node_modules/mongodb/lib/cmap/connection_pool.js.map
new file mode 100644
index 0000000..e74ac9a
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/connection_pool.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/connection_pool_events.js b/backend/node_modules/mongodb/lib/cmap/connection_pool_events.js
new file mode 100644
index 0000000..5a13b0f
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/connection_pool_events.js
@@ -0,0 +1,190 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ConnectionPoolClearedEvent = exports.ConnectionCheckedInEvent = exports.ConnectionCheckedOutEvent = exports.ConnectionCheckOutFailedEvent = exports.ConnectionCheckOutStartedEvent = exports.ConnectionClosedEvent = exports.ConnectionReadyEvent = exports.ConnectionCreatedEvent = exports.ConnectionPoolClosedEvent = exports.ConnectionPoolReadyEvent = exports.ConnectionPoolCreatedEvent = exports.ConnectionPoolMonitoringEvent = void 0;
+const constants_1 = require("../constants");
+const utils_1 = require("../utils");
+/**
+ * The base export class for all monitoring events published from the connection pool
+ * @public
+ * @category Event
+ */
+class ConnectionPoolMonitoringEvent {
+    /** @internal */
+    constructor(pool) {
+        this.time = new Date();
+        this.address = pool.address;
+    }
+}
+exports.ConnectionPoolMonitoringEvent = ConnectionPoolMonitoringEvent;
+/**
+ * An event published when a connection pool is created
+ * @public
+ * @category Event
+ */
+class ConnectionPoolCreatedEvent extends ConnectionPoolMonitoringEvent {
+    /** @internal */
+    constructor(pool) {
+        super(pool);
+        /** @internal */
+        this.name = constants_1.CONNECTION_POOL_CREATED;
+        const { maxConnecting, maxPoolSize, minPoolSize, maxIdleTimeMS, waitQueueTimeoutMS } = pool.options;
+        this.options = { maxConnecting, maxPoolSize, minPoolSize, maxIdleTimeMS, waitQueueTimeoutMS };
+    }
+}
+exports.ConnectionPoolCreatedEvent = ConnectionPoolCreatedEvent;
+/**
+ * An event published when a connection pool is ready
+ * @public
+ * @category Event
+ */
+class ConnectionPoolReadyEvent extends ConnectionPoolMonitoringEvent {
+    /** @internal */
+    constructor(pool) {
+        super(pool);
+        /** @internal */
+        this.name = constants_1.CONNECTION_POOL_READY;
+    }
+}
+exports.ConnectionPoolReadyEvent = ConnectionPoolReadyEvent;
+/**
+ * An event published when a connection pool is closed
+ * @public
+ * @category Event
+ */
+class ConnectionPoolClosedEvent extends ConnectionPoolMonitoringEvent {
+    /** @internal */
+    constructor(pool) {
+        super(pool);
+        /** @internal */
+        this.name = constants_1.CONNECTION_POOL_CLOSED;
+    }
+}
+exports.ConnectionPoolClosedEvent = ConnectionPoolClosedEvent;
+/**
+ * An event published when a connection pool creates a new connection
+ * @public
+ * @category Event
+ */
+class ConnectionCreatedEvent extends ConnectionPoolMonitoringEvent {
+    /** @internal */
+    constructor(pool, connection) {
+        super(pool);
+        /** @internal */
+        this.name = constants_1.CONNECTION_CREATED;
+        this.connectionId = connection.id;
+    }
+}
+exports.ConnectionCreatedEvent = ConnectionCreatedEvent;
+/**
+ * An event published when a connection is ready for use
+ * @public
+ * @category Event
+ */
+class ConnectionReadyEvent extends ConnectionPoolMonitoringEvent {
+    /** @internal */
+    constructor(pool, connection, connectionCreatedEventTime) {
+        super(pool);
+        /** @internal */
+        this.name = constants_1.CONNECTION_READY;
+        this.durationMS = (0, utils_1.now)() - connectionCreatedEventTime;
+        this.connectionId = connection.id;
+    }
+}
+exports.ConnectionReadyEvent = ConnectionReadyEvent;
+/**
+ * An event published when a connection is closed
+ * @public
+ * @category Event
+ */
+class ConnectionClosedEvent extends ConnectionPoolMonitoringEvent {
+    /** @internal */
+    constructor(pool, connection, reason, error) {
+        super(pool);
+        /** @internal */
+        this.name = constants_1.CONNECTION_CLOSED;
+        this.connectionId = connection.id;
+        this.reason = reason;
+        this.serviceId = connection.serviceId;
+        this.error = error ?? null;
+    }
+}
+exports.ConnectionClosedEvent = ConnectionClosedEvent;
+/**
+ * An event published when a request to check a connection out begins
+ * @public
+ * @category Event
+ */
+class ConnectionCheckOutStartedEvent extends ConnectionPoolMonitoringEvent {
+    /** @internal */
+    constructor(pool) {
+        super(pool);
+        /** @internal */
+        this.name = constants_1.CONNECTION_CHECK_OUT_STARTED;
+    }
+}
+exports.ConnectionCheckOutStartedEvent = ConnectionCheckOutStartedEvent;
+/**
+ * An event published when a request to check a connection out fails
+ * @public
+ * @category Event
+ */
+class ConnectionCheckOutFailedEvent extends ConnectionPoolMonitoringEvent {
+    /** @internal */
+    constructor(pool, reason, checkoutTime, error) {
+        super(pool);
+        /** @internal */
+        this.name = constants_1.CONNECTION_CHECK_OUT_FAILED;
+        this.durationMS = (0, utils_1.now)() - checkoutTime;
+        this.reason = reason;
+        this.error = error;
+    }
+}
+exports.ConnectionCheckOutFailedEvent = ConnectionCheckOutFailedEvent;
+/**
+ * An event published when a connection is checked out of the connection pool
+ * @public
+ * @category Event
+ */
+class ConnectionCheckedOutEvent extends ConnectionPoolMonitoringEvent {
+    /** @internal */
+    constructor(pool, connection, checkoutTime) {
+        super(pool);
+        /** @internal */
+        this.name = constants_1.CONNECTION_CHECKED_OUT;
+        this.durationMS = (0, utils_1.now)() - checkoutTime;
+        this.connectionId = connection.id;
+    }
+}
+exports.ConnectionCheckedOutEvent = ConnectionCheckedOutEvent;
+/**
+ * An event published when a connection is checked into the connection pool
+ * @public
+ * @category Event
+ */
+class ConnectionCheckedInEvent extends ConnectionPoolMonitoringEvent {
+    /** @internal */
+    constructor(pool, connection) {
+        super(pool);
+        /** @internal */
+        this.name = constants_1.CONNECTION_CHECKED_IN;
+        this.connectionId = connection.id;
+    }
+}
+exports.ConnectionCheckedInEvent = ConnectionCheckedInEvent;
+/**
+ * An event published when a connection pool is cleared
+ * @public
+ * @category Event
+ */
+class ConnectionPoolClearedEvent extends ConnectionPoolMonitoringEvent {
+    /** @internal */
+    constructor(pool, options = {}) {
+        super(pool);
+        /** @internal */
+        this.name = constants_1.CONNECTION_POOL_CLEARED;
+        this.serviceId = options.serviceId;
+        this.interruptInUseConnections = options.interruptInUseConnections;
+    }
+}
+exports.ConnectionPoolClearedEvent = ConnectionPoolClearedEvent;
+//# sourceMappingURL=connection_pool_events.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/connection_pool_events.js.map b/backend/node_modules/mongodb/lib/cmap/connection_pool_events.js.map
new file mode 100644
index 0000000..c36bab4
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/connection_pool_events.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"connection_pool_events.js","sourceRoot":"","sources":["../../src/cmap/connection_pool_events.ts"],"names":[],"mappings":";;;AACA,4CAYsB;AAEtB,oCAA+B;AAI/B;;;;GAIG;AACH,MAAsB,6BAA6B;IAmBjD,gBAAgB;IAChB,YAAY,IAAoB;QAC9B,IAAI,CAAC,IAAI,GAAG,IAAI,IAAI,EAAE,CAAC;QACvB,IAAI,CAAC,OAAO,GAAG,IAAI,CAAC,OAAO,CAAC;IAC9B,CAAC;CACF;AAxBD,sEAwBC;AAED;;;;GAIG;AACH,MAAa,0BAA2B,SAAQ,6BAA6B;IAS3E,gBAAgB;IAChB,YAAY,IAAoB;QAC9B,KAAK,CAAC,IAAI,CAAC,CAAC;QALd,gBAAgB;QAChB,SAAI,GAAG,mCAAuB,CAAC;QAK7B,MAAM,EAAE,aAAa,EAAE,WAAW,EAAE,WAAW,EAAE,aAAa,EAAE,kBAAkB,EAAE,GAClF,IAAI,CAAC,OAAO,CAAC;QACf,IAAI,CAAC,OAAO,GAAG,EAAE,aAAa,EAAE,WAAW,EAAE,WAAW,EAAE,aAAa,EAAE,kBAAkB,EAAE,CAAC;IAChG,CAAC;CACF;AAhBD,gEAgBC;AAED;;;;GAIG;AACH,MAAa,wBAAyB,SAAQ,6BAA6B;IAIzE,gBAAgB;IAChB,YAAY,IAAoB;QAC9B,KAAK,CAAC,IAAI,CAAC,CAAC;QALd,gBAAgB;QAChB,SAAI,GAAG,iCAAqB,CAAC;IAK7B,CAAC;CACF;AARD,4DAQC;AAED;;;;GAIG;AACH,MAAa,yBAA0B,SAAQ,6BAA6B;IAI1E,gBAAgB;IAChB,YAAY,IAAoB;QAC9B,KAAK,CAAC,IAAI,CAAC,CAAC;QALd,gBAAgB;QAChB,SAAI,GAAG,kCAAsB,CAAC;IAK9B,CAAC;CACF;AARD,8DAQC;AAED;;;;GAIG;AACH,MAAa,sBAAuB,SAAQ,6BAA6B;IAMvE,gBAAgB;IAChB,YAAY,IAAoB,EAAE,UAAwC;QACxE,KAAK,CAAC,IAAI,CAAC,CAAC;QALd,gBAAgB;QAChB,SAAI,GAAG,8BAAkB,CAAC;QAKxB,IAAI,CAAC,YAAY,GAAG,UAAU,CAAC,EAAE,CAAC;IACpC,CAAC;CACF;AAXD,wDAWC;AAED;;;;GAIG;AACH,MAAa,oBAAqB,SAAQ,6BAA6B;IAkBrE,gBAAgB;IAChB,YAAY,IAAoB,EAAE,UAAsB,EAAE,0BAAkC;QAC1F,KAAK,CAAC,IAAI,CAAC,CAAC;QALd,gBAAgB;QAChB,SAAI,GAAG,4BAAgB,CAAC;QAKtB,IAAI,CAAC,UAAU,GAAG,IAAA,WAAG,GAAE,GAAG,0BAA0B,CAAC;QACrD,IAAI,CAAC,YAAY,GAAG,UAAU,CAAC,EAAE,CAAC;IACpC,CAAC;CACF;AAxBD,oDAwBC;AAED;;;;GAIG;AACH,MAAa,qBAAsB,SAAQ,6BAA6B;IAWtE,gBAAgB;IAChB,YACE,IAAoB,EACpB,UAAgD,EAChD,MAAiD,EACjD,KAAkB;QAElB,KAAK,CAAC,IAAI,CAAC,CAAC;QAZd,gBAAgB;QAChB,SAAI,GAAG,6BAAiB,CAAC;QAYvB,IAAI,CAAC,YAAY,GAAG,UAAU,CAAC,EAAE,CAAC;QAClC,IAAI,CAAC,MAAM,GAAG,MAAM,CAAC;QACrB,IAAI,CAAC,SAAS,GAAG,UAAU,CAAC,SAAS,CAAC;QACtC,IAAI,CAAC,KAAK,GAAG,KAAK,IAAI,IAAI,CAAC;IAC7B,CAAC;CACF;AAxBD,sDAwBC;AAED;;;;GAIG;AACH,MAAa,8BAA+B,SAAQ,6BAA6B;IAI/E,gBAAgB;IAChB,YAAY,IAAoB;QAC9B,KAAK,CAAC,IAAI,CAAC,CAAC;QALd,gBAAgB;QAChB,SAAI,GAAG,wCAA4B,CAAC;IAKpC,CAAC;CACF;AARD,wEAQC;AAED;;;;GAIG;AACH,MAAa,6BAA8B,SAAQ,6BAA6B;IAe9E,gBAAgB;IAChB,YACE,IAAoB,EACpB,MAAoD,EACpD,YAAoB,EACpB,KAAkB;QAElB,KAAK,CAAC,IAAI,CAAC,CAAC;QAjBd,gBAAgB;QAChB,SAAI,GAAG,uCAA2B,CAAC;QAiBjC,IAAI,CAAC,UAAU,GAAG,IAAA,WAAG,GAAE,GAAG,YAAY,CAAC;QACvC,IAAI,CAAC,MAAM,GAAG,MAAM,CAAC;QACrB,IAAI,CAAC,KAAK,GAAG,KAAK,CAAC;IACrB,CAAC;CACF;AA3BD,sEA2BC;AAED;;;;GAIG;AACH,MAAa,yBAA0B,SAAQ,6BAA6B;IAc1E,gBAAgB;IAChB,YAAY,IAAoB,EAAE,UAAsB,EAAE,YAAoB;QAC5E,KAAK,CAAC,IAAI,CAAC,CAAC;QAbd,gBAAgB;QAChB,SAAI,GAAG,kCAAsB,CAAC;QAa5B,IAAI,CAAC,UAAU,GAAG,IAAA,WAAG,GAAE,GAAG,YAAY,CAAC;QACvC,IAAI,CAAC,YAAY,GAAG,UAAU,CAAC,EAAE,CAAC;IACpC,CAAC;CACF;AApBD,8DAoBC;AAED;;;;GAIG;AACH,MAAa,wBAAyB,SAAQ,6BAA6B;IAMzE,gBAAgB;IAChB,YAAY,IAAoB,EAAE,UAAsB;QACtD,KAAK,CAAC,IAAI,CAAC,CAAC;QALd,gBAAgB;QAChB,SAAI,GAAG,iCAAqB,CAAC;QAK3B,IAAI,CAAC,YAAY,GAAG,UAAU,CAAC,EAAE,CAAC;IACpC,CAAC;CACF;AAXD,4DAWC;AAED;;;;GAIG;AACH,MAAa,0BAA2B,SAAQ,6BAA6B;IAQ3E,gBAAgB;IAChB,YACE,IAAoB,EACpB,UAAyE,EAAE;QAE3E,KAAK,CAAC,IAAI,CAAC,CAAC;QARd,gBAAgB;QAChB,SAAI,GAAG,mCAAuB,CAAC;QAQ7B,IAAI,CAAC,SAAS,GAAG,OAAO,CAAC,SAAS,CAAC;QACnC,IAAI,CAAC,yBAAyB,GAAG,OAAO,CAAC,yBAAyB,CAAC;IACrE,CAAC;CACF;AAjBD,gEAiBC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/errors.js b/backend/node_modules/mongodb/lib/cmap/errors.js
new file mode 100644
index 0000000..b215a29
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/errors.js
@@ -0,0 +1,108 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.WaitQueueTimeoutError = exports.PoolClearedOnNetworkError = exports.PoolClearedError = exports.PoolClosedError = void 0;
+const error_1 = require("../error");
+/**
+ * An error indicating a connection pool is closed
+ * @category Error
+ */
+class PoolClosedError extends error_1.MongoDriverError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(pool) {
+        super('Attempted to check out a connection from closed connection pool');
+        this.address = pool.address;
+    }
+    get name() {
+        return 'MongoPoolClosedError';
+    }
+}
+exports.PoolClosedError = PoolClosedError;
+/**
+ * An error indicating a connection pool is currently paused
+ * @category Error
+ */
+class PoolClearedError extends error_1.MongoNetworkError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(pool, message) {
+        const errorMessage = message
+            ? message
+            : `Connection pool for ${pool.address} was cleared because another operation failed with: "${pool.serverError?.message}"`;
+        super(errorMessage, pool.serverError ? { cause: pool.serverError } : undefined);
+        this.address = pool.address;
+        this.addErrorLabel(error_1.MongoErrorLabel.PoolRequstedRetry);
+    }
+    get name() {
+        return 'MongoPoolClearedError';
+    }
+}
+exports.PoolClearedError = PoolClearedError;
+/**
+ * An error indicating that a connection pool has been cleared after the monitor for that server timed out.
+ * @category Error
+ */
+class PoolClearedOnNetworkError extends PoolClearedError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(pool) {
+        super(pool, `Connection to ${pool.address} interrupted due to server monitor timeout`);
+    }
+    get name() {
+        return 'PoolClearedOnNetworkError';
+    }
+}
+exports.PoolClearedOnNetworkError = PoolClearedOnNetworkError;
+/**
+ * An error thrown when a request to check out a connection times out
+ * @category Error
+ */
+class WaitQueueTimeoutError extends error_1.MongoDriverError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message, address) {
+        super(message);
+        this.address = address;
+    }
+    get name() {
+        return 'MongoWaitQueueTimeoutError';
+    }
+}
+exports.WaitQueueTimeoutError = WaitQueueTimeoutError;
+//# sourceMappingURL=errors.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/errors.js.map b/backend/node_modules/mongodb/lib/cmap/errors.js.map
new file mode 100644
index 0000000..fcdf5c6
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/errors.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"errors.js","sourceRoot":"","sources":["../../src/cmap/errors.ts"],"names":[],"mappings":";;;AAAA,oCAAgF;AAGhF;;;GAGG;AACH,MAAa,eAAgB,SAAQ,wBAAgB;IAInD;;;;;;;;;;QAUI;IACJ,YAAY,IAAoB;QAC9B,KAAK,CAAC,iEAAiE,CAAC,CAAC;QACzE,IAAI,CAAC,OAAO,GAAG,IAAI,CAAC,OAAO,CAAC;IAC9B,CAAC;IAED,IAAa,IAAI;QACf,OAAO,sBAAsB,CAAC;IAChC,CAAC;CACF;AAvBD,0CAuBC;AAED;;;GAGG;AACH,MAAa,gBAAiB,SAAQ,yBAAiB;IAIrD;;;;;;;;;;QAUI;IACJ,YAAY,IAAoB,EAAE,OAAgB;QAChD,MAAM,YAAY,GAAG,OAAO;YAC1B,CAAC,CAAC,OAAO;YACT,CAAC,CAAC,uBAAuB,IAAI,CAAC,OAAO,wDAAwD,IAAI,CAAC,WAAW,EAAE,OAAO,GAAG,CAAC;QAC5H,KAAK,CAAC,YAAY,EAAE,IAAI,CAAC,WAAW,CAAC,CAAC,CAAC,EAAE,KAAK,EAAE,IAAI,CAAC,WAAW,EAAE,CAAC,CAAC,CAAC,SAAS,CAAC,CAAC;QAChF,IAAI,CAAC,OAAO,GAAG,IAAI,CAAC,OAAO,CAAC;QAE5B,IAAI,CAAC,aAAa,CAAC,uBAAe,CAAC,iBAAiB,CAAC,CAAC;IACxD,CAAC;IAED,IAAa,IAAI;QACf,OAAO,uBAAuB,CAAC;IACjC,CAAC;CACF;AA5BD,4CA4BC;AAED;;;GAGG;AACH,MAAa,yBAA0B,SAAQ,gBAAgB;IAC7D;;;;;;;;;;QAUI;IACJ,YAAY,IAAoB;QAC9B,KAAK,CAAC,IAAI,EAAE,iBAAiB,IAAI,CAAC,OAAO,4CAA4C,CAAC,CAAC;IACzF,CAAC;IAED,IAAa,IAAI;QACf,OAAO,2BAA2B,CAAC;IACrC,CAAC;CACF;AAnBD,8DAmBC;AAED;;;GAGG;AACH,MAAa,qBAAsB,SAAQ,wBAAgB;IAIzD;;;;;;;;;;QAUI;IACJ,YAAY,OAAe,EAAE,OAAe;QAC1C,KAAK,CAAC,OAAO,CAAC,CAAC;QACf,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;IACzB,CAAC;IAED,IAAa,IAAI;QACf,OAAO,4BAA4B,CAAC;IACtC,CAAC;CACF;AAvBD,sDAuBC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/handshake/client_metadata.js b/backend/node_modules/mongodb/lib/cmap/handshake/client_metadata.js
new file mode 100644
index 0000000..8193a64
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/handshake/client_metadata.js
@@ -0,0 +1,216 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.LimitedSizeDocument = void 0;
+exports.makeClientMetadata = makeClientMetadata;
+exports.addContainerMetadata = addContainerMetadata;
+exports.getFAASEnv = getFAASEnv;
+const os = require("os");
+const process = require("process");
+const bson_1 = require("../../bson");
+const error_1 = require("../../error");
+const utils_1 = require("../../utils");
+// eslint-disable-next-line @typescript-eslint/no-require-imports
+const NODE_DRIVER_VERSION = require('../../../package.json').version;
+/** @internal */
+class LimitedSizeDocument {
+    constructor(maxSize) {
+        this.maxSize = maxSize;
+        this.document = new Map();
+        /** BSON overhead: Int32 + Null byte */
+        this.documentSize = 5;
+    }
+    /** Only adds key/value if the bsonByteLength is less than MAX_SIZE */
+    ifItFitsItSits(key, value) {
+        // The BSON byteLength of the new element is the same as serializing it to its own document
+        // subtracting the document size int32 and the null terminator.
+        const newElementSize = bson_1.BSON.serialize(new Map().set(key, value)).byteLength - 5;
+        if (newElementSize + this.documentSize > this.maxSize) {
+            return false;
+        }
+        this.documentSize += newElementSize;
+        this.document.set(key, value);
+        return true;
+    }
+    toObject() {
+        return bson_1.BSON.deserialize(bson_1.BSON.serialize(this.document), {
+            promoteLongs: false,
+            promoteBuffers: false,
+            promoteValues: false,
+            useBigInt64: false
+        });
+    }
+}
+exports.LimitedSizeDocument = LimitedSizeDocument;
+/**
+ * From the specs:
+ * Implementors SHOULD cumulatively update fields in the following order until the document is under the size limit:
+ * 1. Omit fields from `env` except `env.name`.
+ * 2. Omit fields from `os` except `os.type`.
+ * 3. Omit the `env` document entirely.
+ * 4. Truncate `platform`. -- special we do not truncate this field
+ */
+function makeClientMetadata(options) {
+    const metadataDocument = new LimitedSizeDocument(512);
+    const { appName = '' } = options;
+    // Add app name first, it must be sent
+    if (appName.length > 0) {
+        const name = Buffer.byteLength(appName, 'utf8') <= 128
+            ? options.appName
+            : Buffer.from(appName, 'utf8').subarray(0, 128).toString('utf8');
+        metadataDocument.ifItFitsItSits('application', { name });
+    }
+    const { name = '', version = '', platform = '' } = options.driverInfo;
+    const driverInfo = {
+        name: name.length > 0 ? `nodejs|${name}` : 'nodejs',
+        version: version.length > 0 ? `${NODE_DRIVER_VERSION}|${version}` : NODE_DRIVER_VERSION
+    };
+    if (!metadataDocument.ifItFitsItSits('driver', driverInfo)) {
+        throw new error_1.MongoInvalidArgumentError('Unable to include driverInfo name and version, metadata cannot exceed 512 bytes');
+    }
+    let runtimeInfo = getRuntimeInfo();
+    if (platform.length > 0) {
+        runtimeInfo = `${runtimeInfo}|${platform}`;
+    }
+    if (!metadataDocument.ifItFitsItSits('platform', runtimeInfo)) {
+        throw new error_1.MongoInvalidArgumentError('Unable to include driverInfo platform, metadata cannot exceed 512 bytes');
+    }
+    // Note: order matters, os.type is last so it will be removed last if we're at maxSize
+    const osInfo = new Map()
+        .set('name', process.platform)
+        .set('architecture', process.arch)
+        .set('version', os.release())
+        .set('type', os.type());
+    if (!metadataDocument.ifItFitsItSits('os', osInfo)) {
+        for (const key of osInfo.keys()) {
+            osInfo.delete(key);
+            if (osInfo.size === 0)
+                break;
+            if (metadataDocument.ifItFitsItSits('os', osInfo))
+                break;
+        }
+    }
+    const faasEnv = getFAASEnv();
+    if (faasEnv != null) {
+        if (!metadataDocument.ifItFitsItSits('env', faasEnv)) {
+            for (const key of faasEnv.keys()) {
+                faasEnv.delete(key);
+                if (faasEnv.size === 0)
+                    break;
+                if (metadataDocument.ifItFitsItSits('env', faasEnv))
+                    break;
+            }
+        }
+    }
+    return metadataDocument.toObject();
+}
+let dockerPromise;
+/** @internal */
+async function getContainerMetadata() {
+    const containerMetadata = {};
+    dockerPromise ??= (0, utils_1.fileIsAccessible)('/.dockerenv');
+    const isDocker = await dockerPromise;
+    const { KUBERNETES_SERVICE_HOST = '' } = process.env;
+    const isKubernetes = KUBERNETES_SERVICE_HOST.length > 0 ? true : false;
+    if (isDocker)
+        containerMetadata.runtime = 'docker';
+    if (isKubernetes)
+        containerMetadata.orchestrator = 'kubernetes';
+    return containerMetadata;
+}
+/**
+ * @internal
+ * Re-add each metadata value.
+ * Attempt to add new env container metadata, but keep old data if it does not fit.
+ */
+async function addContainerMetadata(originalMetadata) {
+    const containerMetadata = await getContainerMetadata();
+    if (Object.keys(containerMetadata).length === 0)
+        return originalMetadata;
+    const extendedMetadata = new LimitedSizeDocument(512);
+    const extendedEnvMetadata = { ...originalMetadata?.env, container: containerMetadata };
+    for (const [key, val] of Object.entries(originalMetadata)) {
+        if (key !== 'env') {
+            extendedMetadata.ifItFitsItSits(key, val);
+        }
+        else {
+            if (!extendedMetadata.ifItFitsItSits('env', extendedEnvMetadata)) {
+                // add in old data if newer / extended metadata does not fit
+                extendedMetadata.ifItFitsItSits('env', val);
+            }
+        }
+    }
+    if (!('env' in originalMetadata)) {
+        extendedMetadata.ifItFitsItSits('env', extendedEnvMetadata);
+    }
+    return extendedMetadata.toObject();
+}
+/**
+ * Collects FaaS metadata.
+ * - `name` MUST be the last key in the Map returned.
+ */
+function getFAASEnv() {
+    const { AWS_EXECUTION_ENV = '', AWS_LAMBDA_RUNTIME_API = '', FUNCTIONS_WORKER_RUNTIME = '', K_SERVICE = '', FUNCTION_NAME = '', VERCEL = '', AWS_LAMBDA_FUNCTION_MEMORY_SIZE = '', AWS_REGION = '', FUNCTION_MEMORY_MB = '', FUNCTION_REGION = '', FUNCTION_TIMEOUT_SEC = '', VERCEL_REGION = '' } = process.env;
+    const isAWSFaaS = AWS_EXECUTION_ENV.startsWith('AWS_Lambda_') || AWS_LAMBDA_RUNTIME_API.length > 0;
+    const isAzureFaaS = FUNCTIONS_WORKER_RUNTIME.length > 0;
+    const isGCPFaaS = K_SERVICE.length > 0 || FUNCTION_NAME.length > 0;
+    const isVercelFaaS = VERCEL.length > 0;
+    // Note: order matters, name must always be the last key
+    const faasEnv = new Map();
+    // When isVercelFaaS is true so is isAWSFaaS; Vercel inherits the AWS env
+    if (isVercelFaaS && !(isAzureFaaS || isGCPFaaS)) {
+        if (VERCEL_REGION.length > 0) {
+            faasEnv.set('region', VERCEL_REGION);
+        }
+        faasEnv.set('name', 'vercel');
+        return faasEnv;
+    }
+    if (isAWSFaaS && !(isAzureFaaS || isGCPFaaS || isVercelFaaS)) {
+        if (AWS_REGION.length > 0) {
+            faasEnv.set('region', AWS_REGION);
+        }
+        if (AWS_LAMBDA_FUNCTION_MEMORY_SIZE.length > 0 &&
+            Number.isInteger(+AWS_LAMBDA_FUNCTION_MEMORY_SIZE)) {
+            faasEnv.set('memory_mb', new bson_1.Int32(AWS_LAMBDA_FUNCTION_MEMORY_SIZE));
+        }
+        faasEnv.set('name', 'aws.lambda');
+        return faasEnv;
+    }
+    if (isAzureFaaS && !(isGCPFaaS || isAWSFaaS || isVercelFaaS)) {
+        faasEnv.set('name', 'azure.func');
+        return faasEnv;
+    }
+    if (isGCPFaaS && !(isAzureFaaS || isAWSFaaS || isVercelFaaS)) {
+        if (FUNCTION_REGION.length > 0) {
+            faasEnv.set('region', FUNCTION_REGION);
+        }
+        if (FUNCTION_MEMORY_MB.length > 0 && Number.isInteger(+FUNCTION_MEMORY_MB)) {
+            faasEnv.set('memory_mb', new bson_1.Int32(FUNCTION_MEMORY_MB));
+        }
+        if (FUNCTION_TIMEOUT_SEC.length > 0 && Number.isInteger(+FUNCTION_TIMEOUT_SEC)) {
+            faasEnv.set('timeout_sec', new bson_1.Int32(FUNCTION_TIMEOUT_SEC));
+        }
+        faasEnv.set('name', 'gcp.func');
+        return faasEnv;
+    }
+    return null;
+}
+/**
+ * @internal
+ * Get current JavaScript runtime platform
+ *
+ * NOTE: The version information fetching is intentionally written defensively
+ * to avoid having a released driver version that becomes incompatible
+ * with a future change to these global objects.
+ */
+function getRuntimeInfo() {
+    if ('Deno' in globalThis) {
+        const version = typeof Deno?.version?.deno === 'string' ? Deno?.version?.deno : '0.0.0-unknown';
+        return `Deno v${version}, ${os.endianness()}`;
+    }
+    if ('Bun' in globalThis) {
+        const version = typeof Bun?.version === 'string' ? Bun?.version : '0.0.0-unknown';
+        return `Bun v${version}, ${os.endianness()}`;
+    }
+    return `Node.js ${process.version}, ${os.endianness()}`;
+}
+//# sourceMappingURL=client_metadata.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/handshake/client_metadata.js.map b/backend/node_modules/mongodb/lib/cmap/handshake/client_metadata.js.map
new file mode 100644
index 0000000..6f27343
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/handshake/client_metadata.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"client_metadata.js","sourceRoot":"","sources":["../../../src/cmap/handshake/client_metadata.ts"],"names":[],"mappings":";;;AA6FA,gDA+DC;AAuBD,oDAwBC;AAMD,gCA0EC;AA3RD,yBAAyB;AACzB,mCAAmC;AAEnC,qCAAwD;AACxD,uCAAwD;AAExD,uCAA+C;AAE/C,iEAAiE;AACjE,MAAM,mBAAmB,GAAG,OAAO,CAAC,uBAAuB,CAAC,CAAC,OAAO,CAAC;AAyCrE,gBAAgB;AAChB,MAAa,mBAAmB;IAI9B,YAAoB,OAAe;QAAf,YAAO,GAAP,OAAO,CAAQ;QAH3B,aAAQ,GAAG,IAAI,GAAG,EAAE,CAAC;QAC7B,uCAAuC;QAC/B,iBAAY,GAAG,CAAC,CAAC;IACa,CAAC;IAEvC,sEAAsE;IAC/D,cAAc,CAAC,GAAW,EAAE,KAAmC;QACpE,2FAA2F;QAC3F,+DAA+D;QAC/D,MAAM,cAAc,GAAG,WAAI,CAAC,SAAS,CAAC,IAAI,GAAG,EAAE,CAAC,GAAG,CAAC,GAAG,EAAE,KAAK,CAAC,CAAC,CAAC,UAAU,GAAG,CAAC,CAAC;QAEhF,IAAI,cAAc,GAAG,IAAI,CAAC,YAAY,GAAG,IAAI,CAAC,OAAO,EAAE,CAAC;YACtD,OAAO,KAAK,CAAC;QACf,CAAC;QAED,IAAI,CAAC,YAAY,IAAI,cAAc,CAAC;QAEpC,IAAI,CAAC,QAAQ,CAAC,GAAG,CAAC,GAAG,EAAE,KAAK,CAAC,CAAC;QAE9B,OAAO,IAAI,CAAC;IACd,CAAC;IAED,QAAQ;QACN,OAAO,WAAI,CAAC,WAAW,CAAC,WAAI,CAAC,SAAS,CAAC,IAAI,CAAC,QAAQ,CAAC,EAAE;YACrD,YAAY,EAAE,KAAK;YACnB,cAAc,EAAE,KAAK;YACrB,aAAa,EAAE,KAAK;YACpB,WAAW,EAAE,KAAK;SACnB,CAAC,CAAC;IACL,CAAC;CACF;AA/BD,kDA+BC;AAGD;;;;;;;GAOG;AACH,SAAgB,kBAAkB,CAAC,OAAkC;IACnE,MAAM,gBAAgB,GAAG,IAAI,mBAAmB,CAAC,GAAG,CAAC,CAAC;IAEtD,MAAM,EAAE,OAAO,GAAG,EAAE,EAAE,GAAG,OAAO,CAAC;IACjC,sCAAsC;IACtC,IAAI,OAAO,CAAC,MAAM,GAAG,CAAC,EAAE,CAAC;QACvB,MAAM,IAAI,GACR,MAAM,CAAC,UAAU,CAAC,OAAO,EAAE,MAAM,CAAC,IAAI,GAAG;YACvC,CAAC,CAAC,OAAO,CAAC,OAAO;YACjB,CAAC,CAAC,MAAM,CAAC,IAAI,CAAC,OAAO,EAAE,MAAM,CAAC,CAAC,QAAQ,CAAC,CAAC,EAAE,GAAG,CAAC,CAAC,QAAQ,CAAC,MAAM,CAAC,CAAC;QACrE,gBAAgB,CAAC,cAAc,CAAC,aAAa,EAAE,EAAE,IAAI,EAAE,CAAC,CAAC;IAC3D,CAAC;IAED,MAAM,EAAE,IAAI,GAAG,EAAE,EAAE,OAAO,GAAG,EAAE,EAAE,QAAQ,GAAG,EAAE,EAAE,GAAG,OAAO,CAAC,UAAU,CAAC;IAEtE,MAAM,UAAU,GAAG;QACjB,IAAI,EAAE,IAAI,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC,CAAC,UAAU,IAAI,EAAE,CAAC,CAAC,CAAC,QAAQ;QACnD,OAAO,EAAE,OAAO,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC,CAAC,GAAG,mBAAmB,IAAI,OAAO,EAAE,CAAC,CAAC,CAAC,mBAAmB;KACxF,CAAC;IAEF,IAAI,CAAC,gBAAgB,CAAC,cAAc,CAAC,QAAQ,EAAE,UAAU,CAAC,EAAE,CAAC;QAC3D,MAAM,IAAI,iCAAyB,CACjC,iFAAiF,CAClF,CAAC;IACJ,CAAC;IAED,IAAI,WAAW,GAAG,cAAc,EAAE,CAAC;IACnC,IAAI,QAAQ,CAAC,MAAM,GAAG,CAAC,EAAE,CAAC;QACxB,WAAW,GAAG,GAAG,WAAW,IAAI,QAAQ,EAAE,CAAC;IAC7C,CAAC;IAED,IAAI,CAAC,gBAAgB,CAAC,cAAc,CAAC,UAAU,EAAE,WAAW,CAAC,EAAE,CAAC;QAC9D,MAAM,IAAI,iCAAyB,CACjC,yEAAyE,CAC1E,CAAC;IACJ,CAAC;IAED,sFAAsF;IACtF,MAAM,MAAM,GAAG,IAAI,GAAG,EAAE;SACrB,GAAG,CAAC,MAAM,EAAE,OAAO,CAAC,QAAQ,CAAC;SAC7B,GAAG,CAAC,cAAc,EAAE,OAAO,CAAC,IAAI,CAAC;SACjC,GAAG,CAAC,SAAS,EAAE,EAAE,CAAC,OAAO,EAAE,CAAC;SAC5B,GAAG,CAAC,MAAM,EAAE,EAAE,CAAC,IAAI,EAAE,CAAC,CAAC;IAE1B,IAAI,CAAC,gBAAgB,CAAC,cAAc,CAAC,IAAI,EAAE,MAAM,CAAC,EAAE,CAAC;QACnD,KAAK,MAAM,GAAG,IAAI,MAAM,CAAC,IAAI,EAAE,EAAE,CAAC;YAChC,MAAM,CAAC,MAAM,CAAC,GAAG,CAAC,CAAC;YACnB,IAAI,MAAM,CAAC,IAAI,KAAK,CAAC;gBAAE,MAAM;YAC7B,IAAI,gBAAgB,CAAC,cAAc,CAAC,IAAI,EAAE,MAAM,CAAC;gBAAE,MAAM;QAC3D,CAAC;IACH,CAAC;IAED,MAAM,OAAO,GAAG,UAAU,EAAE,CAAC;IAC7B,IAAI,OAAO,IAAI,IAAI,EAAE,CAAC;QACpB,IAAI,CAAC,gBAAgB,CAAC,cAAc,CAAC,KAAK,EAAE,OAAO,CAAC,EAAE,CAAC;YACrD,KAAK,MAAM,GAAG,IAAI,OAAO,CAAC,IAAI,EAAE,EAAE,CAAC;gBACjC,OAAO,CAAC,MAAM,CAAC,GAAG,CAAC,CAAC;gBACpB,IAAI,OAAO,CAAC,IAAI,KAAK,CAAC;oBAAE,MAAM;gBAC9B,IAAI,gBAAgB,CAAC,cAAc,CAAC,KAAK,EAAE,OAAO,CAAC;oBAAE,MAAM;YAC7D,CAAC;QACH,CAAC;IACH,CAAC;IACD,OAAO,gBAAgB,CAAC,QAAQ,EAAoB,CAAC;AACvD,CAAC;AAED,IAAI,aAA+B,CAAC;AACpC,gBAAgB;AAChB,KAAK,UAAU,oBAAoB;IACjC,MAAM,iBAAiB,GAAwB,EAAE,CAAC;IAClD,aAAa,KAAK,IAAA,wBAAgB,EAAC,aAAa,CAAC,CAAC;IAClD,MAAM,QAAQ,GAAG,MAAM,aAAa,CAAC;IAErC,MAAM,EAAE,uBAAuB,GAAG,EAAE,EAAE,GAAG,OAAO,CAAC,GAAG,CAAC;IACrD,MAAM,YAAY,GAAG,uBAAuB,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,KAAK,CAAC;IAEvE,IAAI,QAAQ;QAAE,iBAAiB,CAAC,OAAO,GAAG,QAAQ,CAAC;IACnD,IAAI,YAAY;QAAE,iBAAiB,CAAC,YAAY,GAAG,YAAY,CAAC;IAEhE,OAAO,iBAAiB,CAAC;AAC3B,CAAC;AAED;;;;GAIG;AACI,KAAK,UAAU,oBAAoB,CAAC,gBAAgC;IACzE,MAAM,iBAAiB,GAAG,MAAM,oBAAoB,EAAE,CAAC;IACvD,IAAI,MAAM,CAAC,IAAI,CAAC,iBAAiB,CAAC,CAAC,MAAM,KAAK,CAAC;QAAE,OAAO,gBAAgB,CAAC;IAEzE,MAAM,gBAAgB,GAAG,IAAI,mBAAmB,CAAC,GAAG,CAAC,CAAC;IAEtD,MAAM,mBAAmB,GAAG,EAAE,GAAG,gBAAgB,EAAE,GAAG,EAAE,SAAS,EAAE,iBAAiB,EAAE,CAAC;IAEvF,KAAK,MAAM,CAAC,GAAG,EAAE,GAAG,CAAC,IAAI,MAAM,CAAC,OAAO,CAAC,gBAAgB,CAAC,EAAE,CAAC;QAC1D,IAAI,GAAG,KAAK,KAAK,EAAE,CAAC;YAClB,gBAAgB,CAAC,cAAc,CAAC,GAAG,EAAE,GAAG,CAAC,CAAC;QAC5C,CAAC;aAAM,CAAC;YACN,IAAI,CAAC,gBAAgB,CAAC,cAAc,CAAC,KAAK,EAAE,mBAAmB,CAAC,EAAE,CAAC;gBACjE,4DAA4D;gBAC5D,gBAAgB,CAAC,cAAc,CAAC,KAAK,EAAE,GAAG,CAAC,CAAC;YAC9C,CAAC;QACH,CAAC;IACH,CAAC;IAED,IAAI,CAAC,CAAC,KAAK,IAAI,gBAAgB,CAAC,EAAE,CAAC;QACjC,gBAAgB,CAAC,cAAc,CAAC,KAAK,EAAE,mBAAmB,CAAC,CAAC;IAC9D,CAAC;IAED,OAAO,gBAAgB,CAAC,QAAQ,EAAE,CAAC;AACrC,CAAC;AAED;;;GAGG;AACH,SAAgB,UAAU;IACxB,MAAM,EACJ,iBAAiB,GAAG,EAAE,EACtB,sBAAsB,GAAG,EAAE,EAC3B,wBAAwB,GAAG,EAAE,EAC7B,SAAS,GAAG,EAAE,EACd,aAAa,GAAG,EAAE,EAClB,MAAM,GAAG,EAAE,EACX,+BAA+B,GAAG,EAAE,EACpC,UAAU,GAAG,EAAE,EACf,kBAAkB,GAAG,EAAE,EACvB,eAAe,GAAG,EAAE,EACpB,oBAAoB,GAAG,EAAE,EACzB,aAAa,GAAG,EAAE,EACnB,GAAG,OAAO,CAAC,GAAG,CAAC;IAEhB,MAAM,SAAS,GACb,iBAAiB,CAAC,UAAU,CAAC,aAAa,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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/metrics.js b/backend/node_modules/mongodb/lib/cmap/metrics.js
new file mode 100644
index 0000000..89c2210
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/metrics.js
@@ -0,0 +1,62 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ConnectionPoolMetrics = void 0;
+/** @internal */
+class ConnectionPoolMetrics {
+    constructor() {
+        this.txnConnections = 0;
+        this.cursorConnections = 0;
+        this.otherConnections = 0;
+    }
+    /**
+     * Mark a connection as pinned for a specific operation.
+     */
+    markPinned(pinType) {
+        if (pinType === ConnectionPoolMetrics.TXN) {
+            this.txnConnections += 1;
+        }
+        else if (pinType === ConnectionPoolMetrics.CURSOR) {
+            this.cursorConnections += 1;
+        }
+        else {
+            this.otherConnections += 1;
+        }
+    }
+    /**
+     * Unmark a connection as pinned for an operation.
+     */
+    markUnpinned(pinType) {
+        if (pinType === ConnectionPoolMetrics.TXN) {
+            this.txnConnections -= 1;
+        }
+        else if (pinType === ConnectionPoolMetrics.CURSOR) {
+            this.cursorConnections -= 1;
+        }
+        else {
+            this.otherConnections -= 1;
+        }
+    }
+    /**
+     * Return information about the cmap metrics as a string.
+     */
+    info(maxPoolSize) {
+        return ('Timed out while checking out a connection from connection pool: ' +
+            `maxPoolSize: ${maxPoolSize}, ` +
+            `connections in use by cursors: ${this.cursorConnections}, ` +
+            `connections in use by transactions: ${this.txnConnections}, ` +
+            `connections in use by other operations: ${this.otherConnections}`);
+    }
+    /**
+     * Reset the metrics to the initial values.
+     */
+    reset() {
+        this.txnConnections = 0;
+        this.cursorConnections = 0;
+        this.otherConnections = 0;
+    }
+}
+exports.ConnectionPoolMetrics = ConnectionPoolMetrics;
+ConnectionPoolMetrics.TXN = 'txn';
+ConnectionPoolMetrics.CURSOR = 'cursor';
+ConnectionPoolMetrics.OTHER = 'other';
+//# sourceMappingURL=metrics.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/metrics.js.map b/backend/node_modules/mongodb/lib/cmap/metrics.js.map
new file mode 100644
index 0000000..dadb2ae
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/metrics.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"metrics.js","sourceRoot":"","sources":["../../src/cmap/metrics.ts"],"names":[],"mappings":";;;AAAA,gBAAgB;AAChB,MAAa,qBAAqB;IAAlC;QAKE,mBAAc,GAAG,CAAC,CAAC;QACnB,sBAAiB,GAAG,CAAC,CAAC;QACtB,qBAAgB,GAAG,CAAC,CAAC;IAiDvB,CAAC;IA/CC;;OAEG;IACH,UAAU,CAAC,OAAe;QACxB,IAAI,OAAO,KAAK,qBAAqB,CAAC,GAAG,EAAE,CAAC;YAC1C,IAAI,CAAC,cAAc,IAAI,CAAC,CAAC;QAC3B,CAAC;aAAM,IAAI,OAAO,KAAK,qBAAqB,CAAC,MAAM,EAAE,CAAC;YACpD,IAAI,CAAC,iBAAiB,IAAI,CAAC,CAAC;QAC9B,CAAC;aAAM,CAAC;YACN,IAAI,CAAC,gBAAgB,IAAI,CAAC,CAAC;QAC7B,CAAC;IACH,CAAC;IAED;;OAEG;IACH,YAAY,CAAC,OAAe;QAC1B,IAAI,OAAO,KAAK,qBAAqB,CAAC,GAAG,EAAE,CAAC;YAC1C,IAAI,CAAC,cAAc,IAAI,CAAC,CAAC;QAC3B,CAAC;aAAM,IAAI,OAAO,KAAK,qBAAqB,CAAC,MAAM,EAAE,CAAC;YACpD,IAAI,CAAC,iBAAiB,IAAI,CAAC,CAAC;QAC9B,CAAC;aAAM,CAAC;YACN,IAAI,CAAC,gBAAgB,IAAI,CAAC,CAAC;QAC7B,CAAC;IACH,CAAC;IAED;;OAEG;IACH,IAAI,CAAC,WAAmB;QACtB,OAAO,CACL,kEAAkE;YAClE,gBAAgB,WAAW,IAAI;YAC/B,kCAAkC,IAAI,CAAC,iBAAiB,IAAI;YAC5D,uCAAuC,IAAI,CAAC,cAAc,IAAI;YAC9D,2CAA2C,IAAI,CAAC,gBAAgB,EAAE,CACnE,CAAC;IACJ,CAAC;IAED;;OAEG;IACH,KAAK;QACH,IAAI,CAAC,cAAc,GAAG,CAAC,CAAC;QACxB,IAAI,CAAC,iBAAiB,GAAG,CAAC,CAAC;QAC3B,IAAI,CAAC,gBAAgB,GAAG,CAAC,CAAC;IAC5B,CAAC;;AAvDH,sDAwDC;AAvDiB,yBAAG,GAAG,KAAc,AAAjB,CAAkB;AACrB,4BAAM,GAAG,QAAiB,AAApB,CAAqB;AAC3B,2BAAK,GAAG,OAAgB,AAAnB,CAAoB"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/stream_description.js b/backend/node_modules/mongodb/lib/cmap/stream_description.js
new file mode 100644
index 0000000..1665c6e
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/stream_description.js
@@ -0,0 +1,70 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.StreamDescription = void 0;
+const bson_1 = require("../bson");
+const common_1 = require("../sdam/common");
+const server_description_1 = require("../sdam/server_description");
+const RESPONSE_FIELDS = [
+    'minWireVersion',
+    'maxWireVersion',
+    'maxBsonObjectSize',
+    'maxMessageSizeBytes',
+    'maxWriteBatchSize',
+    'logicalSessionTimeoutMinutes'
+];
+/** @public */
+class StreamDescription {
+    constructor(address, options) {
+        this.hello = null;
+        this.address = address;
+        this.type = common_1.ServerType.Unknown;
+        this.minWireVersion = undefined;
+        this.maxWireVersion = undefined;
+        this.maxBsonObjectSize = 16777216;
+        this.maxMessageSizeBytes = 48000000;
+        this.maxWriteBatchSize = 100000;
+        this.logicalSessionTimeoutMinutes = options?.logicalSessionTimeoutMinutes;
+        this.loadBalanced = !!options?.loadBalanced;
+        this.compressors =
+            options && options.compressors && Array.isArray(options.compressors)
+                ? options.compressors
+                : [];
+        this.serverConnectionId = null;
+    }
+    receiveResponse(response) {
+        if (response == null) {
+            return;
+        }
+        this.hello = response;
+        this.type = (0, server_description_1.parseServerType)(response);
+        if ('connectionId' in response) {
+            this.serverConnectionId = this.parseServerConnectionID(response.connectionId);
+        }
+        else {
+            this.serverConnectionId = null;
+        }
+        for (const field of RESPONSE_FIELDS) {
+            if (response[field] != null) {
+                this[field] = response[field];
+            }
+            // testing case
+            if ('__nodejs_mock_server__' in response) {
+                this.__nodejs_mock_server__ = response['__nodejs_mock_server__'];
+            }
+        }
+        if (response.compression) {
+            this.compressor = this.compressors.filter(c => response.compression?.includes(c))[0];
+        }
+    }
+    /* @internal */
+    parseServerConnectionID(serverConnectionId) {
+        // Connection ids are always integral, so it's safe to coerce doubles as well as
+        // any integral type.
+        return bson_1.Long.isLong(serverConnectionId)
+            ? serverConnectionId.toBigInt()
+            : // @ts-expect-error: Doubles are coercible to number
+                BigInt(serverConnectionId);
+    }
+}
+exports.StreamDescription = StreamDescription;
+//# sourceMappingURL=stream_description.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/stream_description.js.map b/backend/node_modules/mongodb/lib/cmap/stream_description.js.map
new file mode 100644
index 0000000..09911db
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/stream_description.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"stream_description.js","sourceRoot":"","sources":["../../src/cmap/stream_description.ts"],"names":[],"mappings":";;;AAAA,kCAA2D;AAC3D,2CAA4C;AAC5C,mEAA6D;AAG7D,MAAM,eAAe,GAAG;IACtB,gBAAgB;IAChB,gBAAgB;IAChB,mBAAmB;IACnB,qBAAqB;IACrB,mBAAmB;IACnB,8BAA8B;CACtB,CAAC;AASX,cAAc;AACd,MAAa,iBAAiB;IAoB5B,YAAY,OAAe,EAAE,OAAkC;QAFxD,UAAK,GAAoB,IAAI,CAAC;QAGnC,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACvB,IAAI,CAAC,IAAI,GAAG,mBAAU,CAAC,OAAO,CAAC;QAC/B,IAAI,CAAC,cAAc,GAAG,SAAS,CAAC;QAChC,IAAI,CAAC,cAAc,GAAG,SAAS,CAAC;QAChC,IAAI,CAAC,iBAAiB,GAAG,QAAQ,CAAC;QAClC,IAAI,CAAC,mBAAmB,GAAG,QAAQ,CAAC;QACpC,IAAI,CAAC,iBAAiB,GAAG,MAAM,CAAC;QAChC,IAAI,CAAC,4BAA4B,GAAG,OAAO,EAAE,4BAA4B,CAAC;QAC1E,IAAI,CAAC,YAAY,GAAG,CAAC,CAAC,OAAO,EAAE,YAAY,CAAC;QAC5C,IAAI,CAAC,WAAW;YACd,OAAO,IAAI,OAAO,CAAC,WAAW,IAAI,KAAK,CAAC,OAAO,CAAC,OAAO,CAAC,WAAW,CAAC;gBAClE,CAAC,CAAC,OAAO,CAAC,WAAW;gBACrB,CAAC,CAAC,EAAE,CAAC;QACT,IAAI,CAAC,kBAAkB,GAAG,IAAI,CAAC;IACjC,CAAC;IAED,eAAe,CAAC,QAAyB;QACvC,IAAI,QAAQ,IAAI,IAAI,EAAE,CAAC;YACrB,OAAO;QACT,CAAC;QACD,IAAI,CAAC,KAAK,GAAG,QAAQ,CAAC;QACtB,IAAI,CAAC,IAAI,GAAG,IAAA,oCAAe,EAAC,QAAQ,CAAC,CAAC;QACtC,IAAI,cAAc,IAAI,QAAQ,EAAE,CAAC;YAC/B,IAAI,CAAC,kBAAkB,GAAG,IAAI,CAAC,uBAAuB,CAAC,QAAQ,CAAC,YAAY,CAAC,CAAC;QAChF,CAAC;aAAM,CAAC;YACN,IAAI,CAAC,kBAAkB,GAAG,IAAI,CAAC;QACjC,CAAC;QACD,KAAK,MAAM,KAAK,IAAI,eAAe,EAAE,CAAC;YACpC,IAAI,QAAQ,CAAC,KAAK,CAAC,IAAI,IAAI,EAAE,CAAC;gBAC5B,IAAI,CAAC,KAAK,CAAC,GAAG,QAAQ,CAAC,KAAK,CAAC,CAAC;YAChC,CAAC;YAED,eAAe;YACf,IAAI,wBAAwB,IAAI,QAAQ,EAAE,CAAC;gBACzC,IAAI,CAAC,sBAAsB,GAAG,QAAQ,CAAC,wBAAwB,CAAC,CAAC;YACnE,CAAC;QACH,CAAC;QAED,IAAI,QAAQ,CAAC,WAAW,EAAE,CAAC;YACzB,IAAI,CAAC,UAAU,GAAG,IAAI,CAAC,WAAW,CAAC,MAAM,CAAC,CAAC,CAAC,EAAE,CAAC,QAAQ,CAAC,WAAW,EAAE,QAAQ,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;QACvF,CAAC;IACH,CAAC;IAED,eAAe;IACf,uBAAuB,CAAC,kBAAmD;QACzE,gFAAgF;QAChF,qBAAqB;QACrB,OAAO,WAAI,CAAC,MAAM,CAAC,kBAAkB,CAAC;YACpC,CAAC,CAAC,kBAAkB,CAAC,QAAQ,EAAE;YAC/B,CAAC,CAAC,oDAAoD;gBACpD,MAAM,CAAC,kBAAkB,CAAC,CAAC;IACjC,CAAC;CACF;AAzED,8CAyEC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/wire_protocol/compression.js b/backend/node_modules/mongodb/lib/cmap/wire_protocol/compression.js
new file mode 100644
index 0000000..f955e36
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/wire_protocol/compression.js
@@ -0,0 +1,163 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.uncompressibleCommands = exports.Compressor = void 0;
+exports.compress = compress;
+exports.decompress = decompress;
+exports.compressCommand = compressCommand;
+exports.decompressResponse = decompressResponse;
+const util_1 = require("util");
+const zlib = require("zlib");
+const constants_1 = require("../../constants");
+const deps_1 = require("../../deps");
+const error_1 = require("../../error");
+const commands_1 = require("../commands");
+const constants_2 = require("./constants");
+/** @public */
+exports.Compressor = Object.freeze({
+    none: 0,
+    snappy: 1,
+    zlib: 2,
+    zstd: 3
+});
+exports.uncompressibleCommands = new Set([
+    constants_1.LEGACY_HELLO_COMMAND,
+    'saslStart',
+    'saslContinue',
+    'getnonce',
+    'authenticate',
+    'createUser',
+    'updateUser',
+    'copydbSaslStart',
+    'copydbgetnonce',
+    'copydb'
+]);
+const ZSTD_COMPRESSION_LEVEL = 3;
+const zlibInflate = (0, util_1.promisify)(zlib.inflate.bind(zlib));
+const zlibDeflate = (0, util_1.promisify)(zlib.deflate.bind(zlib));
+let zstd;
+let Snappy = null;
+function loadSnappy() {
+    if (Snappy == null) {
+        const snappyImport = (0, deps_1.getSnappy)();
+        if ('kModuleError' in snappyImport) {
+            throw snappyImport.kModuleError;
+        }
+        Snappy = snappyImport;
+    }
+    return Snappy;
+}
+// Facilitate compressing a message using an agreed compressor
+async function compress(options, dataToBeCompressed) {
+    const zlibOptions = {};
+    switch (options.agreedCompressor) {
+        case 'snappy': {
+            Snappy ??= loadSnappy();
+            return await Snappy.compress(dataToBeCompressed);
+        }
+        case 'zstd': {
+            loadZstd();
+            if ('kModuleError' in zstd) {
+                throw zstd['kModuleError'];
+            }
+            return await zstd.compress(dataToBeCompressed, ZSTD_COMPRESSION_LEVEL);
+        }
+        case 'zlib': {
+            if (options.zlibCompressionLevel) {
+                zlibOptions.level = options.zlibCompressionLevel;
+            }
+            return await zlibDeflate(dataToBeCompressed, zlibOptions);
+        }
+        default: {
+            throw new error_1.MongoInvalidArgumentError(`Unknown compressor ${options.agreedCompressor} failed to compress`);
+        }
+    }
+}
+// Decompress a message using the given compressor
+async function decompress(compressorID, compressedData) {
+    if (compressorID !== exports.Compressor.snappy &&
+        compressorID !== exports.Compressor.zstd &&
+        compressorID !== exports.Compressor.zlib &&
+        compressorID !== exports.Compressor.none) {
+        throw new error_1.MongoDecompressionError(`Server sent message compressed using an unsupported compressor. (Received compressor ID ${compressorID})`);
+    }
+    switch (compressorID) {
+        case exports.Compressor.snappy: {
+            Snappy ??= loadSnappy();
+            return await Snappy.uncompress(compressedData, { asBuffer: true });
+        }
+        case exports.Compressor.zstd: {
+            loadZstd();
+            if ('kModuleError' in zstd) {
+                throw zstd['kModuleError'];
+            }
+            return await zstd.decompress(compressedData);
+        }
+        case exports.Compressor.zlib: {
+            return await zlibInflate(compressedData);
+        }
+        default: {
+            return compressedData;
+        }
+    }
+}
+/**
+ * Load ZStandard if it is not already set.
+ */
+function loadZstd() {
+    if (!zstd) {
+        zstd = (0, deps_1.getZstdLibrary)();
+    }
+}
+const MESSAGE_HEADER_SIZE = 16;
+/**
+ * @internal
+ *
+ * Compresses an OP_MSG or OP_QUERY message, if compression is configured.  This method
+ * also serializes the command to BSON.
+ */
+async function compressCommand(command, description) {
+    const finalCommand = description.agreedCompressor === 'none' || !commands_1.OpCompressedRequest.canCompress(command)
+        ? command
+        : new commands_1.OpCompressedRequest(command, {
+            agreedCompressor: description.agreedCompressor ?? 'none',
+            zlibCompressionLevel: description.zlibCompressionLevel ?? 0
+        });
+    const data = await finalCommand.toBin();
+    return Buffer.concat(data);
+}
+/**
+ * @internal
+ *
+ * Decompresses an OP_MSG or OP_QUERY response from the server, if compression is configured.
+ *
+ * This method does not parse the response's BSON.
+ */
+async function decompressResponse(message) {
+    const messageHeader = {
+        length: message.readInt32LE(0),
+        requestId: message.readInt32LE(4),
+        responseTo: message.readInt32LE(8),
+        opCode: message.readInt32LE(12)
+    };
+    if (messageHeader.opCode !== constants_2.OP_COMPRESSED) {
+        const ResponseType = messageHeader.opCode === constants_2.OP_MSG ? commands_1.OpMsgResponse : commands_1.OpReply;
+        const messageBody = message.subarray(MESSAGE_HEADER_SIZE);
+        return new ResponseType(message, messageHeader, messageBody);
+    }
+    const header = {
+        ...messageHeader,
+        fromCompressed: true,
+        opCode: message.readInt32LE(MESSAGE_HEADER_SIZE),
+        length: message.readInt32LE(MESSAGE_HEADER_SIZE + 4)
+    };
+    const compressorID = message[MESSAGE_HEADER_SIZE + 8];
+    const compressedBuffer = message.slice(MESSAGE_HEADER_SIZE + 9);
+    // recalculate based on wrapped opcode
+    const ResponseType = header.opCode === constants_2.OP_MSG ? commands_1.OpMsgResponse : commands_1.OpReply;
+    const messageBody = await decompress(compressorID, compressedBuffer);
+    if (messageBody.length !== header.length) {
+        throw new error_1.MongoDecompressionError('Message body and message header must be the same length');
+    }
+    return new ResponseType(message, header, messageBody);
+}
+//# sourceMappingURL=compression.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/wire_protocol/compression.js.map b/backend/node_modules/mongodb/lib/cmap/wire_protocol/compression.js.map
new file mode 100644
index 0000000..1f133d9
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/wire_protocol/compression.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"compression.js","sourceRoot":"","sources":["../../../src/cmap/wire_protocol/compression.ts"],"names":[],"mappings":";;;AA6DA,4BA6BC;AAGD,gCA+BC;AAmBD,0CAaC;AASD,gDA8BC;AAnMD,+BAAiC;AACjC,6BAA6B;AAE7B,+CAAuD;AACvD,qCAAuF;AACvF,uCAAiF;AACjF,0CAMqB;AACrB,2CAAoD;AAEpD,cAAc;AACD,QAAA,UAAU,GAAG,MAAM,CAAC,MAAM,CAAC;IACtC,IAAI,EAAE,CAAC;IACP,MAAM,EAAE,CAAC;IACT,IAAI,EAAE,CAAC;IACP,IAAI,EAAE,CAAC;CACC,CAAC,CAAC;AAQC,QAAA,sBAAsB,GAAG,IAAI,GAAG,CAAC;IAC5C,gCAAoB;IACpB,WAAW;IACX,cAAc;IACd,UAAU;IACV,cAAc;IACd,YAAY;IACZ,YAAY;IACZ,iBAAiB;IACjB,gBAAgB;IAChB,QAAQ;CACT,CAAC,CAAC;AAEH,MAAM,sBAAsB,GAAG,CAAC,CAAC;AAEjC,MAAM,WAAW,GAAG,IAAA,gBAAS,EAAC,IAAI,CAAC,OAAO,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC,CAAC;AACvD,MAAM,WAAW,GAAG,IAAA,gBAAS,EAAC,IAAI,CAAC,OAAO,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC,CAAC;AAEvD,IAAI,IAAe,CAAC;AACpB,IAAI,MAAM,GAAqB,IAAI,CAAC;AACpC,SAAS,UAAU;IACjB,IAAI,MAAM,IAAI,IAAI,EAAE,CAAC;QACnB,MAAM,YAAY,GAAG,IAAA,gBAAS,GAAE,CAAC;QACjC,IAAI,cAAc,IAAI,YAAY,EAAE,CAAC;YACnC,MAAM,YAAY,CAAC,YAAY,CAAC;QAClC,CAAC;QACD,MAAM,GAAG,YAAY,CAAC;IACxB,CAAC;IACD,OAAO,MAAM,CAAC;AAChB,CAAC;AAED,8DAA8D;AACvD,KAAK,UAAU,QAAQ,CAC5B,OAA2E,EAC3E,kBAA0B;IAE1B,MAAM,WAAW,GAAG,EAAsB,CAAC;IAC3C,QAAQ,OAAO,CAAC,gBAAgB,EAAE,CAAC;QACjC,KAAK,QAAQ,CAAC,CAAC,CAAC;YACd,MAAM,KAAK,UAAU,EAAE,CAAC;YACxB,OAAO,MAAM,MAAM,CAAC,QAAQ,CAAC,kBAAkB,CAAC,CAAC;QACnD,CAAC;QACD,KAAK,MAAM,CAAC,CAAC,CAAC;YACZ,QAAQ,EAAE,CAAC;YACX,IAAI,cAAc,IAAI,IAAI,EAAE,CAAC;gBAC3B,MAAM,IAAI,CAAC,cAAc,CAAC,CAAC;YAC7B,CAAC;YACD,OAAO,MAAM,IAAI,CAAC,QAAQ,CAAC,kBAAkB,EAAE,sBAAsB,CAAC,CAAC;QACzE,CAAC;QACD,KAAK,MAAM,CAAC,CAAC,CAAC;YACZ,IAAI,OAAO,CAAC,oBAAoB,EAAE,CAAC;gBACjC,WAAW,CAAC,KAAK,GAAG,OAAO,CAAC,oBAAoB,CAAC;YACnD,CAAC;YACD,OAAO,MAAM,WAAW,CAAC,kBAAkB,EAAE,WAAW,CAAC,CAAC;QAC5D,CAAC;QACD,OAAO,CAAC,CAAC,CAAC;YACR,MAAM,IAAI,iCAAyB,CACjC,sBAAsB,OAAO,CAAC,gBAAgB,qBAAqB,CACpE,CAAC;QACJ,CAAC;IACH,CAAC;AACH,CAAC;AAED,kDAAkD;AAC3C,KAAK,UAAU,UAAU,CAAC,YAAoB,EAAE,cAAsB;IAC3E,IACE,YAAY,KAAK,kBAAU,CAAC,MAAM;QAClC,YAAY,KAAK,kBAAU,CAAC,IAAI;QAChC,YAAY,KAAK,kBAAU,CAAC,IAAI;QAChC,YAAY,KAAK,kBAAU,CAAC,IAAI,EAChC,CAAC;QACD,MAAM,IAAI,+BAAuB,CAC/B,2FAA2F,YAAY,GAAG,CAC3G,CAAC;IACJ,CAAC;IAED,QAAQ,YAAY,EAAE,CAAC;QACrB,KAAK,kBAAU,CAAC,MAAM,CAAC,CAAC,CAAC;YACvB,MAAM,KAAK,UAAU,EAAE,CAAC;YACxB,OAAO,MAAM,MAAM,CAAC,UAAU,CAAC,cAAc,EAAE,EAAE,QAAQ,EAAE,IAAI,EAAE,CAAC,CAAC;QACrE,CAAC;QACD,KAAK,kBAAU,CAAC,IAAI,CAAC,CAAC,CAAC;YACrB,QAAQ,EAAE,CAAC;YACX,IAAI,cAAc,IAAI,IAAI,EAAE,CAAC;gBAC3B,MAAM,IAAI,CAAC,cAAc,CAAC,CAAC;YAC7B,CAAC;YACD,OAAO,MAAM,IAAI,CAAC,UAAU,CAAC,cAAc,CAAC,CAAC;QAC/C,CAAC;QACD,KAAK,kBAAU,CAAC,IAAI,CAAC,CAAC,CAAC;YACrB,OAAO,MAAM,WAAW,CAAC,cAAc,CAAC,CAAC;QAC3C,CAAC;QACD,OAAO,CAAC,CAAC,CAAC;YACR,OAAO,cAAc,CAAC;QACxB,CAAC;IACH,CAAC;AACH,CAAC;AAED;;GAEG;AACH,SAAS,QAAQ;IACf,IAAI,CAAC,IAAI,EAAE,CAAC;QACV,IAAI,GAAG,IAAA,qBAAc,GAAE,CAAC;IAC1B,CAAC;AACH,CAAC;AAED,MAAM,mBAAmB,GAAG,EAAE,CAAC;AAE/B;;;;;GAKG;AACI,KAAK,UAAU,eAAe,CACnC,OAAiC,EACjC,WAAiF;IAEjF,MAAM,YAAY,GAChB,WAAW,CAAC,gBAAgB,KAAK,MAAM,IAAI,CAAC,8BAAmB,CAAC,WAAW,CAAC,OAAO,CAAC;QAClF,CAAC,CAAC,OAAO;QACT,CAAC,CAAC,IAAI,8BAAmB,CAAC,OAAO,EAAE;YAC/B,gBAAgB,EAAE,WAAW,CAAC,gBAAgB,IAAI,MAAM;YACxD,oBAAoB,EAAE,WAAW,CAAC,oBAAoB,IAAI,CAAC;SAC5D,CAAC,CAAC;IACT,MAAM,IAAI,GAAG,MAAM,YAAY,CAAC,KAAK,EAAE,CAAC;IACxC,OAAO,MAAM,CAAC,MAAM,CAAC,IAAI,CAAC,CAAC;AAC7B,CAAC;AAED;;;;;;GAMG;AACI,KAAK,UAAU,kBAAkB,CAAC,OAAe;IACtD,MAAM,aAAa,GAAkB;QACnC,MAAM,EAAE,OAAO,CAAC,WAAW,CAAC,CAAC,CAAC;QAC9B,SAAS,EAAE,OAAO,CAAC,WAAW,CAAC,CAAC,CAAC;QACjC,UAAU,EAAE,OAAO,CAAC,WAAW,CAAC,CAAC,CAAC;QAClC,MAAM,EAAE,OAAO,CAAC,WAAW,CAAC,EAAE,CAAC;KAChC,CAAC;IAEF,IAAI,aAAa,CAAC,MAAM,KAAK,yBAAa,EAAE,CAAC;QAC3C,MAAM,YAAY,GAAG,aAAa,CAAC,MAAM,KAAK,kBAAM,CAAC,CAAC,CAAC,wBAAa,CAAC,CAAC,CAAC,kBAAO,CAAC;QAC/E,MAAM,WAAW,GAAG,OAAO,CAAC,QAAQ,CAAC,mBAAmB,CAAC,CAAC;QAC1D,OAAO,IAAI,YAAY,CAAC,OAAO,EAAE,aAAa,EAAE,WAAW,CAAC,CAAC;IAC/D,CAAC;IAED,MAAM,MAAM,GAAkB;QAC5B,GAAG,aAAa;QAChB,cAAc,EAAE,IAAI;QACpB,MAAM,EAAE,OAAO,CAAC,WAAW,CAAC,mBAAmB,CAAC;QAChD,MAAM,EAAE,OAAO,CAAC,WAAW,CAAC,mBAAmB,GAAG,CAAC,CAAC;KACrD,CAAC;IACF,MAAM,YAAY,GAAG,OAAO,CAAC,mBAAmB,GAAG,CAAC,CAAC,CAAC;IACtD,MAAM,gBAAgB,GAAG,OAAO,CAAC,KAAK,CAAC,mBAAmB,GAAG,CAAC,CAAC,CAAC;IAEhE,sCAAsC;IACtC,MAAM,YAAY,GAAG,MAAM,CAAC,MAAM,KAAK,kBAAM,CAAC,CAAC,CAAC,wBAAa,CAAC,CAAC,CAAC,kBAAO,CAAC;IACxE,MAAM,WAAW,GAAG,MAAM,UAAU,CAAC,YAAY,EAAE,gBAAgB,CAAC,CAAC;IACrE,IAAI,WAAW,CAAC,MAAM,KAAK,MAAM,CAAC,MAAM,EAAE,CAAC;QACzC,MAAM,IAAI,+BAAuB,CAAC,yDAAyD,CAAC,CAAC;IAC/F,CAAC;IACD,OAAO,IAAI,YAAY,CAAC,OAAO,EAAE,MAAM,EAAE,WAAW,CAAC,CAAC;AACxD,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/wire_protocol/constants.js b/backend/node_modules/mongodb/lib/cmap/wire_protocol/constants.js
new file mode 100644
index 0000000..e2d78c0
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/wire_protocol/constants.js
@@ -0,0 +1,17 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.OP_MSG = exports.OP_COMPRESSED = exports.OP_DELETE = exports.OP_QUERY = exports.OP_INSERT = exports.OP_UPDATE = exports.OP_REPLY = exports.MIN_SUPPORTED_QE_SERVER_VERSION = exports.MIN_SUPPORTED_QE_WIRE_VERSION = exports.MAX_SUPPORTED_WIRE_VERSION = exports.MIN_SUPPORTED_WIRE_VERSION = exports.MAX_SUPPORTED_SERVER_VERSION = exports.MIN_SUPPORTED_SERVER_VERSION = void 0;
+exports.MIN_SUPPORTED_SERVER_VERSION = '4.0';
+exports.MAX_SUPPORTED_SERVER_VERSION = '8.0';
+exports.MIN_SUPPORTED_WIRE_VERSION = 7;
+exports.MAX_SUPPORTED_WIRE_VERSION = 25;
+exports.MIN_SUPPORTED_QE_WIRE_VERSION = 21;
+exports.MIN_SUPPORTED_QE_SERVER_VERSION = '7.0';
+exports.OP_REPLY = 1;
+exports.OP_UPDATE = 2001;
+exports.OP_INSERT = 2002;
+exports.OP_QUERY = 2004;
+exports.OP_DELETE = 2006;
+exports.OP_COMPRESSED = 2012;
+exports.OP_MSG = 2013;
+//# sourceMappingURL=constants.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/wire_protocol/constants.js.map b/backend/node_modules/mongodb/lib/cmap/wire_protocol/constants.js.map
new file mode 100644
index 0000000..6aa9450
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/wire_protocol/constants.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"constants.js","sourceRoot":"","sources":["../../../src/cmap/wire_protocol/constants.ts"],"names":[],"mappings":";;;AAAa,QAAA,4BAA4B,GAAG,KAAK,CAAC;AACrC,QAAA,4BAA4B,GAAG,KAAK,CAAC;AACrC,QAAA,0BAA0B,GAAG,CAAC,CAAC;AAC/B,QAAA,0BAA0B,GAAG,EAAE,CAAC;AAChC,QAAA,6BAA6B,GAAG,EAAE,CAAC;AACnC,QAAA,+BAA+B,GAAG,KAAK,CAAC;AACxC,QAAA,QAAQ,GAAG,CAAC,CAAC;AACb,QAAA,SAAS,GAAG,IAAI,CAAC;AACjB,QAAA,SAAS,GAAG,IAAI,CAAC;AACjB,QAAA,QAAQ,GAAG,IAAI,CAAC;AAChB,QAAA,SAAS,GAAG,IAAI,CAAC;AACjB,QAAA,aAAa,GAAG,IAAI,CAAC;AACrB,QAAA,MAAM,GAAG,IAAI,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/wire_protocol/on_data.js b/backend/node_modules/mongodb/lib/cmap/wire_protocol/on_data.js
new file mode 100644
index 0000000..d8d064d
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/wire_protocol/on_data.js
@@ -0,0 +1,103 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.onData = onData;
+const utils_1 = require("../../utils");
+/**
+ * onData is adapted from Node.js' events.on helper
+ * https://nodejs.org/api/events.html#eventsonemitter-eventname-options
+ *
+ * Returns an AsyncIterator that iterates each 'data' event emitted from emitter.
+ * It will reject upon an error event.
+ */
+function onData(emitter, { timeoutContext }) {
+    // Setup pending events and pending promise lists
+    /**
+     * When the caller has not yet called .next(), we store the
+     * value from the event in this list. Next time they call .next()
+     * we pull the first value out of this list and resolve a promise with it.
+     */
+    const unconsumedEvents = new utils_1.List();
+    /**
+     * When there has not yet been an event, a new promise will be created
+     * and implicitly stored in this list. When an event occurs we take the first
+     * promise in this list and resolve it.
+     */
+    const unconsumedPromises = new utils_1.List();
+    /**
+     * Stored an error created by an error event.
+     * This error will turn into a rejection for the subsequent .next() call
+     */
+    let error = null;
+    /** Set to true only after event listeners have been removed. */
+    let finished = false;
+    const iterator = {
+        next() {
+            // First, we consume all unread events
+            const value = unconsumedEvents.shift();
+            if (value != null) {
+                return Promise.resolve({ value, done: false });
+            }
+            // Then we error, if an error happened
+            // This happens one time if at all, because after 'error'
+            // we stop listening
+            if (error != null) {
+                const p = Promise.reject(error);
+                // Only the first element errors
+                error = null;
+                return p;
+            }
+            // If the iterator is finished, resolve to done
+            if (finished)
+                return closeHandler();
+            // Wait until an event happens
+            const { promise, resolve, reject } = (0, utils_1.promiseWithResolvers)();
+            unconsumedPromises.push({ resolve, reject });
+            return promise;
+        },
+        return() {
+            return closeHandler();
+        },
+        throw(err) {
+            errorHandler(err);
+            return Promise.resolve({ value: undefined, done: true });
+        },
+        [Symbol.asyncIterator]() {
+            return this;
+        }
+    };
+    // Adding event handlers
+    emitter.on('data', eventHandler);
+    emitter.on('error', errorHandler);
+    const timeoutForSocketRead = timeoutContext?.timeoutForSocketRead;
+    timeoutForSocketRead?.throwIfExpired();
+    timeoutForSocketRead?.then(undefined, errorHandler);
+    return iterator;
+    function eventHandler(value) {
+        const promise = unconsumedPromises.shift();
+        if (promise != null)
+            promise.resolve({ value, done: false });
+        else
+            unconsumedEvents.push(value);
+    }
+    function errorHandler(err) {
+        const promise = unconsumedPromises.shift();
+        if (promise != null)
+            promise.reject(err);
+        else
+            error = err;
+        void closeHandler();
+    }
+    function closeHandler() {
+        // Adding event handlers
+        emitter.off('data', eventHandler);
+        emitter.off('error', errorHandler);
+        finished = true;
+        timeoutForSocketRead?.clear();
+        const doneResult = { value: undefined, done: finished };
+        for (const promise of unconsumedPromises) {
+            promise.resolve(doneResult);
+        }
+        return Promise.resolve(doneResult);
+    }
+}
+//# sourceMappingURL=on_data.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/wire_protocol/on_data.js.map b/backend/node_modules/mongodb/lib/cmap/wire_protocol/on_data.js.map
new file mode 100644
index 0000000..f939f6c
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/wire_protocol/on_data.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"on_data.js","sourceRoot":"","sources":["../../../src/cmap/wire_protocol/on_data.ts"],"names":[],"mappings":";;AAqBA,wBA0GC;AA5HD,uCAAyD;AAWzD;;;;;;GAMG;AACH,SAAgB,MAAM,CACpB,OAAqB,EACrB,EAAE,cAAc,EAAuC;IAEvD,iDAAiD;IACjD;;;;OAIG;IACH,MAAM,gBAAgB,GAAG,IAAI,YAAI,EAAU,CAAC;IAC5C;;;;OAIG;IACH,MAAM,kBAAkB,GAAG,IAAI,YAAI,EAAmB,CAAC;IAEvD;;;OAGG;IACH,IAAI,KAAK,GAAiB,IAAI,CAAC;IAE/B,gEAAgE;IAChE,IAAI,QAAQ,GAAG,KAAK,CAAC;IAErB,MAAM,QAAQ,GAA2B;QACvC,IAAI;YACF,sCAAsC;YACtC,MAAM,KAAK,GAAG,gBAAgB,CAAC,KAAK,EAAE,CAAC;YACvC,IAAI,KAAK,IAAI,IAAI,EAAE,CAAC;gBAClB,OAAO,OAAO,CAAC,OAAO,CAAC,EAAE,KAAK,EAAE,IAAI,EAAE,KAAK,EAAE,CAAC,CAAC;YACjD,CAAC;YAED,sCAAsC;YACtC,yDAAyD;YACzD,oBAAoB;YACpB,IAAI,KAAK,IAAI,IAAI,EAAE,CAAC;gBAClB,MAAM,CAAC,GAAG,OAAO,CAAC,MAAM,CAAC,KAAK,CAAC,CAAC;gBAChC,gCAAgC;gBAChC,KAAK,GAAG,IAAI,CAAC;gBACb,OAAO,CAAC,CAAC;YACX,CAAC;YAED,+CAA+C;YAC/C,IAAI,QAAQ;gBAAE,OAAO,YAAY,EAAE,CAAC;YAEpC,8BAA8B;YAC9B,MAAM,EAAE,OAAO,EAAE,OAAO,EAAE,MAAM,EAAE,GAAG,IAAA,4BAAoB,GAA0B,CAAC;YACpF,kBAAkB,CAAC,IAAI,CAAC,EAAE,OAAO,EAAE,MAAM,EAAE,CAAC,CAAC;YAC7C,OAAO,OAAO,CAAC;QACjB,CAAC;QAED,MAAM;YACJ,OAAO,YAAY,EAAE,CAAC;QACxB,CAAC;QAED,KAAK,CAAC,GAAU;YACd,YAAY,CAAC,GAAG,CAAC,CAAC;YAClB,OAAO,OAAO,CAAC,OAAO,CAAC,EAAE,KAAK,EAAE,SAAS,EAAE,IAAI,EAAE,IAAI,EAAE,CAAC,CAAC;QAC3D,CAAC;QAED,CAAC,MAAM,CAAC,aAAa,CAAC;YACpB,OAAO,IAAI,CAAC;QACd,CAAC;KACF,CAAC;IAEF,wBAAwB;IACxB,OAAO,CAAC,EAAE,CAAC,MAAM,EAAE,YAAY,CAAC,CAAC;IACjC,OAAO,CAAC,EAAE,CAAC,OAAO,EAAE,YAAY,CAAC,CAAC;IAElC,MAAM,oBAAoB,GAAG,cAAc,EAAE,oBAAoB,CAAC;IAClE,oBAAoB,EAAE,cAAc,EAAE,CAAC;IACvC,oBAAoB,EAAE,IAAI,CAAC,SAAS,EAAE,YAAY,CAAC,CAAC;IAEpD,OAAO,QAAQ,CAAC;IAEhB,SAAS,YAAY,CAAC,KAAa;QACjC,MAAM,OAAO,GAAG,kBAAkB,CAAC,KAAK,EAAE,CAAC;QAC3C,IAAI,OAAO,IAAI,IAAI;YAAE,OAAO,CAAC,OAAO,CAAC,EAAE,KAAK,EAAE,IAAI,EAAE,KAAK,EAAE,CAAC,CAAC;;YACxD,gBAAgB,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC;IACpC,CAAC;IAED,SAAS,YAAY,CAAC,GAAU;QAC9B,MAAM,OAAO,GAAG,kBAAkB,CAAC,KAAK,EAAE,CAAC;QAE3C,IAAI,OAAO,IAAI,IAAI;YAAE,OAAO,CAAC,MAAM,CAAC,GAAG,CAAC,CAAC;;YACpC,KAAK,GAAG,GAAG,CAAC;QACjB,KAAK,YAAY,EAAE,CAAC;IACtB,CAAC;IAED,SAAS,YAAY;QACnB,wBAAwB;QACxB,OAAO,CAAC,GAAG,CAAC,MAAM,EAAE,YAAY,CAAC,CAAC;QAClC,OAAO,CAAC,GAAG,CAAC,OAAO,EAAE,YAAY,CAAC,CAAC;QACnC,QAAQ,GAAG,IAAI,CAAC;QAChB,oBAAoB,EAAE,KAAK,EAAE,CAAC;QAC9B,MAAM,UAAU,GAAG,EAAE,KAAK,EAAE,SAAS,EAAE,IAAI,EAAE,QAAQ,EAAW,CAAC;QAEjE,KAAK,MAAM,OAAO,IAAI,kBAAkB,EAAE,CAAC;YACzC,OAAO,CAAC,OAAO,CAAC,UAAU,CAAC,CAAC;QAC9B,CAAC;QAED,OAAO,OAAO,CAAC,OAAO,CAAC,UAAU,CAAC,CAAC;IACrC,CAAC;AACH,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/wire_protocol/on_demand/document.js b/backend/node_modules/mongodb/lib/cmap/wire_protocol/on_demand/document.js
new file mode 100644
index 0000000..12dc1bf
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/wire_protocol/on_demand/document.js
@@ -0,0 +1,221 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.OnDemandDocument = void 0;
+const bson_1 = require("../../../bson");
+/** @internal */
+class OnDemandDocument {
+    constructor(
+    /** BSON bytes, this document begins at offset */
+    bson, 
+    /** The start of the document */
+    offset = 0, 
+    /** If this is an embedded document, indicates if this was a BSON array */
+    isArray = false, 
+    /** If elements was already calculated */
+    elements) {
+        this.bson = bson;
+        this.offset = offset;
+        this.isArray = isArray;
+        /**
+         * Maps JS strings to elements and jsValues for speeding up subsequent lookups.
+         * - If `false` then name does not exist in the BSON document
+         * - If `CachedBSONElement` instance name exists
+         * - If `cache[name].value == null` jsValue has not yet been parsed
+         *   - Null/Undefined values do not get cached because they are zero-length values.
+         */
+        this.cache = Object.create(null);
+        /** Caches the index of elements that have been named */
+        this.indexFound = Object.create(null);
+        this.elements = elements ?? (0, bson_1.parseToElementsToArray)(this.bson, offset);
+    }
+    /** Only supports basic latin strings */
+    isElementName(name, element) {
+        const nameLength = element[2 /* BSONElementOffset.nameLength */];
+        const nameOffset = element[1 /* BSONElementOffset.nameOffset */];
+        if (name.length !== nameLength)
+            return false;
+        const nameEnd = nameOffset + nameLength;
+        for (let byteIndex = nameOffset, charIndex = 0; charIndex < name.length && byteIndex < nameEnd; charIndex++, byteIndex++) {
+            if (this.bson[byteIndex] !== name.charCodeAt(charIndex))
+                return false;
+        }
+        return true;
+    }
+    /**
+     * Seeks into the elements array for an element matching the given name.
+     *
+     * @remarks
+     * Caching:
+     * - Caches the existence of a property making subsequent look ups for non-existent properties return immediately
+     * - Caches names mapped to elements to avoid reiterating the array and comparing the name again
+     * - Caches the index at which an element has been found to prevent rechecking against elements already determined to belong to another name
+     *
+     * @param name - a basic latin string name of a BSON element
+     * @returns
+     */
+    getElement(name) {
+        const cachedElement = this.cache[name];
+        if (cachedElement === false)
+            return null;
+        if (cachedElement != null) {
+            return cachedElement;
+        }
+        if (typeof name === 'number') {
+            if (this.isArray) {
+                if (name < this.elements.length) {
+                    const element = this.elements[name];
+                    const cachedElement = { element, value: undefined };
+                    this.cache[name] = cachedElement;
+                    this.indexFound[name] = true;
+                    return cachedElement;
+                }
+                else {
+                    return null;
+                }
+            }
+            else {
+                return null;
+            }
+        }
+        for (let index = 0; index < this.elements.length; index++) {
+            const element = this.elements[index];
+            // skip this element if it has already been associated with a name
+            if (!(index in this.indexFound) && this.isElementName(name, element)) {
+                const cachedElement = { element, value: undefined };
+                this.cache[name] = cachedElement;
+                this.indexFound[index] = true;
+                return cachedElement;
+            }
+        }
+        this.cache[name] = false;
+        return null;
+    }
+    toJSValue(element, as) {
+        const type = element[0 /* BSONElementOffset.type */];
+        const offset = element[3 /* BSONElementOffset.offset */];
+        const length = element[4 /* BSONElementOffset.length */];
+        if (as !== type) {
+            return null;
+        }
+        switch (as) {
+            case bson_1.BSONType.null:
+            case bson_1.BSONType.undefined:
+                return null;
+            case bson_1.BSONType.double:
+                return (0, bson_1.getFloat64LE)(this.bson, offset);
+            case bson_1.BSONType.int:
+                return (0, bson_1.getInt32LE)(this.bson, offset);
+            case bson_1.BSONType.long:
+                return (0, bson_1.getBigInt64LE)(this.bson, offset);
+            case bson_1.BSONType.bool:
+                return Boolean(this.bson[offset]);
+            case bson_1.BSONType.objectId:
+                return new bson_1.ObjectId(this.bson.subarray(offset, offset + 12));
+            case bson_1.BSONType.timestamp:
+                return new bson_1.Timestamp((0, bson_1.getBigInt64LE)(this.bson, offset));
+            case bson_1.BSONType.string:
+                return (0, bson_1.toUTF8)(this.bson, offset + 4, offset + length - 1, false);
+            case bson_1.BSONType.binData: {
+                const totalBinarySize = (0, bson_1.getInt32LE)(this.bson, offset);
+                const subType = this.bson[offset + 4];
+                if (subType === 2) {
+                    const subType2BinarySize = (0, bson_1.getInt32LE)(this.bson, offset + 1 + 4);
+                    if (subType2BinarySize < 0)
+                        throw new bson_1.BSONError('Negative binary type element size found for subtype 0x02');
+                    if (subType2BinarySize > totalBinarySize - 4)
+                        throw new bson_1.BSONError('Binary type with subtype 0x02 contains too long binary size');
+                    if (subType2BinarySize < totalBinarySize - 4)
+                        throw new bson_1.BSONError('Binary type with subtype 0x02 contains too short binary size');
+                    return new bson_1.Binary(this.bson.subarray(offset + 1 + 4 + 4, offset + 1 + 4 + 4 + subType2BinarySize), 2);
+                }
+                return new bson_1.Binary(this.bson.subarray(offset + 1 + 4, offset + 1 + 4 + totalBinarySize), subType);
+            }
+            case bson_1.BSONType.date:
+                // Pretend this is correct.
+                return new Date(Number((0, bson_1.getBigInt64LE)(this.bson, offset)));
+            case bson_1.BSONType.object:
+                return new OnDemandDocument(this.bson, offset);
+            case bson_1.BSONType.array:
+                return new OnDemandDocument(this.bson, offset, true);
+            default:
+                throw new bson_1.BSONError(`Unsupported BSON type: ${as}`);
+        }
+    }
+    /**
+     * Returns the number of elements in this BSON document
+     */
+    size() {
+        return this.elements.length;
+    }
+    /**
+     * Checks for the existence of an element by name.
+     *
+     * @remarks
+     * Uses `getElement` with the expectation that will populate caches such that a `has` call
+     * followed by a `getElement` call will not repeat the cost paid by the first look up.
+     *
+     * @param name - element name
+     */
+    has(name) {
+        const cachedElement = this.cache[name];
+        if (cachedElement === false)
+            return false;
+        if (cachedElement != null)
+            return true;
+        return this.getElement(name) != null;
+    }
+    get(name, as, required) {
+        const element = this.getElement(name);
+        if (element == null) {
+            if (required === true) {
+                throw new bson_1.BSONError(`BSON element "${name}" is missing`);
+            }
+            else {
+                return null;
+            }
+        }
+        if (element.value == null) {
+            const value = this.toJSValue(element.element, as);
+            if (value == null) {
+                if (required === true) {
+                    throw new bson_1.BSONError(`BSON element "${name}" is missing`);
+                }
+                else {
+                    return null;
+                }
+            }
+            // It is important to never store null
+            element.value = value;
+        }
+        return element.value;
+    }
+    getNumber(name, required) {
+        const maybeBool = this.get(name, bson_1.BSONType.bool);
+        const bool = maybeBool == null ? null : maybeBool ? 1 : 0;
+        const maybeLong = this.get(name, bson_1.BSONType.long);
+        const long = maybeLong == null ? null : Number(maybeLong);
+        const result = bool ?? long ?? this.get(name, bson_1.BSONType.int) ?? this.get(name, bson_1.BSONType.double);
+        if (required === true && result == null) {
+            throw new bson_1.BSONError(`BSON element "${name}" is missing`);
+        }
+        return result;
+    }
+    /**
+     * Deserialize this object, DOES NOT cache result so avoid multiple invocations
+     * @param options - BSON deserialization options
+     */
+    toObject(options) {
+        return (0, bson_1.deserialize)(this.bson, {
+            ...options,
+            index: this.offset,
+            allowObjectSmallerThanBufferSize: true
+        });
+    }
+    /** Returns this document's bytes only */
+    toBytes() {
+        const size = (0, bson_1.getInt32LE)(this.bson, this.offset);
+        return this.bson.subarray(this.offset, this.offset + size);
+    }
+}
+exports.OnDemandDocument = OnDemandDocument;
+//# sourceMappingURL=document.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/wire_protocol/on_demand/document.js.map b/backend/node_modules/mongodb/lib/cmap/wire_protocol/on_demand/document.js.map
new file mode 100644
index 0000000..0f371a2
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/wire_protocol/on_demand/document.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/wire_protocol/responses.js b/backend/node_modules/mongodb/lib/cmap/wire_protocol/responses.js
new file mode 100644
index 0000000..24aeff9
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/wire_protocol/responses.js
@@ -0,0 +1,310 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ClientBulkWriteCursorResponse = exports.ExplainedCursorResponse = exports.CursorResponse = exports.MongoDBResponse = void 0;
+exports.isErrorResponse = isErrorResponse;
+const bson_1 = require("../../bson");
+const error_1 = require("../../error");
+const utils_1 = require("../../utils");
+const document_1 = require("./on_demand/document");
+/**
+ * Accepts a BSON payload and checks for na "ok: 0" element.
+ * This utility is intended to prevent calling response class constructors
+ * that expect the result to be a success and demand certain properties to exist.
+ *
+ * For example, a cursor response always expects a cursor embedded document.
+ * In order to write the class such that the properties reflect that assertion (non-null)
+ * we cannot invoke the subclass constructor if the BSON represents an error.
+ *
+ * @param bytes - BSON document returned from the server
+ */
+function isErrorResponse(bson, elements) {
+    for (let eIdx = 0; eIdx < elements.length; eIdx++) {
+        const element = elements[eIdx];
+        if (element[2 /* BSONElementOffset.nameLength */] === 2) {
+            const nameOffset = element[1 /* BSONElementOffset.nameOffset */];
+            // 111 == "o", 107 == "k"
+            if (bson[nameOffset] === 111 && bson[nameOffset + 1] === 107) {
+                const valueOffset = element[3 /* BSONElementOffset.offset */];
+                const valueLength = element[4 /* BSONElementOffset.length */];
+                // If any byte in the length of the ok number (works for any type) is non zero,
+                // then it is considered "ok: 1"
+                for (let i = valueOffset; i < valueOffset + valueLength; i++) {
+                    if (bson[i] !== 0x00)
+                        return false;
+                }
+                return true;
+            }
+        }
+    }
+    return true;
+}
+/** @internal */
+class MongoDBResponse extends document_1.OnDemandDocument {
+    get(name, as, required) {
+        try {
+            return super.get(name, as, required);
+        }
+        catch (cause) {
+            throw new error_1.MongoUnexpectedServerResponseError(cause.message, { cause });
+        }
+    }
+    static is(value) {
+        return value instanceof MongoDBResponse;
+    }
+    static make(bson) {
+        const elements = (0, bson_1.parseToElementsToArray)(bson, 0);
+        const isError = isErrorResponse(bson, elements);
+        return isError
+            ? new MongoDBResponse(bson, 0, false, elements)
+            : new this(bson, 0, false, elements);
+    }
+    /**
+     * Returns true iff:
+     * - ok is 0 and the top-level code === 50
+     * - ok is 1 and the writeErrors array contains a code === 50
+     * - ok is 1 and the writeConcern object contains a code === 50
+     */
+    get isMaxTimeExpiredError() {
+        // {ok: 0, code: 50 ... }
+        const isTopLevel = this.ok === 0 && this.code === error_1.MONGODB_ERROR_CODES.MaxTimeMSExpired;
+        if (isTopLevel)
+            return true;
+        if (this.ok === 0)
+            return false;
+        // {ok: 1, writeConcernError: {code: 50 ... }}
+        const isWriteConcern = this.get('writeConcernError', bson_1.BSONType.object)?.getNumber('code') ===
+            error_1.MONGODB_ERROR_CODES.MaxTimeMSExpired;
+        if (isWriteConcern)
+            return true;
+        const writeErrors = this.get('writeErrors', bson_1.BSONType.array);
+        if (writeErrors?.size()) {
+            for (let i = 0; i < writeErrors.size(); i++) {
+                const isWriteError = writeErrors.get(i, bson_1.BSONType.object)?.getNumber('code') ===
+                    error_1.MONGODB_ERROR_CODES.MaxTimeMSExpired;
+                // {ok: 1, writeErrors: [{code: 50 ... }]}
+                if (isWriteError)
+                    return true;
+            }
+        }
+        return false;
+    }
+    /**
+     * Drivers can safely assume that the `recoveryToken` field is always a BSON document but drivers MUST NOT modify the
+     * contents of the document.
+     */
+    get recoveryToken() {
+        return (this.get('recoveryToken', bson_1.BSONType.object)?.toObject({
+            promoteValues: false,
+            promoteLongs: false,
+            promoteBuffers: false,
+            validation: { utf8: true }
+        }) ?? null);
+    }
+    /**
+     * The server creates a cursor in response to a snapshot find/aggregate command and reports atClusterTime within the cursor field in the response.
+     * For the distinct command the server adds a top-level atClusterTime field to the response.
+     * The atClusterTime field represents the timestamp of the read and is guaranteed to be majority committed.
+     */
+    get atClusterTime() {
+        return (this.get('cursor', bson_1.BSONType.object)?.get('atClusterTime', bson_1.BSONType.timestamp) ??
+            this.get('atClusterTime', bson_1.BSONType.timestamp));
+    }
+    get operationTime() {
+        return this.get('operationTime', bson_1.BSONType.timestamp);
+    }
+    /** Normalizes whatever BSON value is "ok" to a JS number 1 or 0. */
+    get ok() {
+        return this.getNumber('ok') ? 1 : 0;
+    }
+    get $err() {
+        return this.get('$err', bson_1.BSONType.string);
+    }
+    get errmsg() {
+        return this.get('errmsg', bson_1.BSONType.string);
+    }
+    get code() {
+        return this.getNumber('code');
+    }
+    get $clusterTime() {
+        if (!('clusterTime' in this)) {
+            const clusterTimeDoc = this.get('$clusterTime', bson_1.BSONType.object);
+            if (clusterTimeDoc == null) {
+                this.clusterTime = null;
+                return null;
+            }
+            const clusterTime = clusterTimeDoc.get('clusterTime', bson_1.BSONType.timestamp, true);
+            const signature = clusterTimeDoc.get('signature', bson_1.BSONType.object)?.toObject();
+            // @ts-expect-error: `signature` is incorrectly typed. It is public API.
+            this.clusterTime = { clusterTime, signature };
+        }
+        return this.clusterTime ?? null;
+    }
+    toObject(options) {
+        const exactBSONOptions = {
+            ...(0, bson_1.pluckBSONSerializeOptions)(options ?? {}),
+            validation: (0, bson_1.parseUtf8ValidationOption)(options)
+        };
+        return super.toObject(exactBSONOptions);
+    }
+}
+exports.MongoDBResponse = MongoDBResponse;
+// {ok:1}
+MongoDBResponse.empty = new MongoDBResponse(new Uint8Array([13, 0, 0, 0, 16, 111, 107, 0, 1, 0, 0, 0, 0]));
+/** @internal */
+class CursorResponse extends MongoDBResponse {
+    constructor() {
+        super(...arguments);
+        this._batch = null;
+        this.iterated = 0;
+        this._encryptedBatch = null;
+    }
+    static is(value) {
+        return value instanceof CursorResponse || value === CursorResponse.emptyGetMore;
+    }
+    get cursor() {
+        return this.get('cursor', bson_1.BSONType.object, true);
+    }
+    get id() {
+        try {
+            return bson_1.Long.fromBigInt(this.cursor.get('id', bson_1.BSONType.long, true));
+        }
+        catch (cause) {
+            throw new error_1.MongoUnexpectedServerResponseError(cause.message, { cause });
+        }
+    }
+    get ns() {
+        const namespace = this.cursor.get('ns', bson_1.BSONType.string);
+        if (namespace != null)
+            return (0, utils_1.ns)(namespace);
+        return null;
+    }
+    get length() {
+        return Math.max(this.batchSize - this.iterated, 0);
+    }
+    get encryptedBatch() {
+        if (this.encryptedResponse == null)
+            return null;
+        if (this._encryptedBatch != null)
+            return this._encryptedBatch;
+        const cursor = this.encryptedResponse?.get('cursor', bson_1.BSONType.object);
+        if (cursor?.has('firstBatch'))
+            this._encryptedBatch = cursor.get('firstBatch', bson_1.BSONType.array, true);
+        else if (cursor?.has('nextBatch'))
+            this._encryptedBatch = cursor.get('nextBatch', bson_1.BSONType.array, true);
+        else
+            throw new error_1.MongoUnexpectedServerResponseError('Cursor document did not contain a batch');
+        return this._encryptedBatch;
+    }
+    get batch() {
+        if (this._batch != null)
+            return this._batch;
+        const cursor = this.cursor;
+        if (cursor.has('firstBatch'))
+            this._batch = cursor.get('firstBatch', bson_1.BSONType.array, true);
+        else if (cursor.has('nextBatch'))
+            this._batch = cursor.get('nextBatch', bson_1.BSONType.array, true);
+        else
+            throw new error_1.MongoUnexpectedServerResponseError('Cursor document did not contain a batch');
+        return this._batch;
+    }
+    get batchSize() {
+        return this.batch?.size();
+    }
+    get postBatchResumeToken() {
+        return (this.cursor.get('postBatchResumeToken', bson_1.BSONType.object)?.toObject({
+            promoteValues: false,
+            promoteLongs: false,
+            promoteBuffers: false,
+            validation: { utf8: true }
+        }) ?? null);
+    }
+    shift(options) {
+        if (this.iterated >= this.batchSize) {
+            return null;
+        }
+        const result = this.batch.get(this.iterated, bson_1.BSONType.object, true) ?? null;
+        const encryptedResult = this.encryptedBatch?.get(this.iterated, bson_1.BSONType.object, true) ?? null;
+        this.iterated += 1;
+        if (options?.raw) {
+            return result.toBytes();
+        }
+        else {
+            const object = result.toObject(options);
+            if (encryptedResult) {
+                (0, utils_1.decorateDecryptionResult)(object, encryptedResult.toObject(options), true);
+            }
+            return object;
+        }
+    }
+    clear() {
+        this.iterated = this.batchSize;
+    }
+}
+exports.CursorResponse = CursorResponse;
+/**
+ * This supports a feature of the FindCursor.
+ * It is an optimization to avoid an extra getMore when the limit has been reached
+ */
+CursorResponse.emptyGetMore = {
+    id: new bson_1.Long(0),
+    length: 0,
+    shift: () => null
+};
+/**
+ * Explain responses have nothing to do with cursor responses
+ * This class serves to temporarily avoid refactoring how cursors handle
+ * explain responses which is to detect that the response is not cursor-like and return the explain
+ * result as the "first and only" document in the "batch" and end the "cursor"
+ */
+class ExplainedCursorResponse extends CursorResponse {
+    constructor() {
+        super(...arguments);
+        this.isExplain = true;
+        this._length = 1;
+    }
+    get id() {
+        return bson_1.Long.fromBigInt(0n);
+    }
+    get batchSize() {
+        return 0;
+    }
+    get ns() {
+        return null;
+    }
+    get length() {
+        return this._length;
+    }
+    shift(options) {
+        if (this._length === 0)
+            return null;
+        this._length -= 1;
+        return this.toObject(options);
+    }
+}
+exports.ExplainedCursorResponse = ExplainedCursorResponse;
+/**
+ * Client bulk writes have some extra metadata at the top level that needs to be
+ * included in the result returned to the user.
+ */
+class ClientBulkWriteCursorResponse extends CursorResponse {
+    get insertedCount() {
+        return this.get('nInserted', bson_1.BSONType.int, true);
+    }
+    get upsertedCount() {
+        return this.get('nUpserted', bson_1.BSONType.int, true);
+    }
+    get matchedCount() {
+        return this.get('nMatched', bson_1.BSONType.int, true);
+    }
+    get modifiedCount() {
+        return this.get('nModified', bson_1.BSONType.int, true);
+    }
+    get deletedCount() {
+        return this.get('nDeleted', bson_1.BSONType.int, true);
+    }
+    get writeConcernError() {
+        return this.get('writeConcernError', bson_1.BSONType.object, false);
+    }
+}
+exports.ClientBulkWriteCursorResponse = ClientBulkWriteCursorResponse;
+//# sourceMappingURL=responses.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/wire_protocol/responses.js.map b/backend/node_modules/mongodb/lib/cmap/wire_protocol/responses.js.map
new file mode 100644
index 0000000..ebe0c28
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/wire_protocol/responses.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"responses.js","sourceRoot":"","sources":["../../../src/cmap/wire_protocol/responses.ts"],"names":[],"mappings":";;;AAwCA,0CAwBC;AAhED,qCAWoB;AACpB,uCAAsF;AAEtF,uCAA2D;AAC3D,mDAI8B;AAU9B;;;;;;;;;;GAUG;AACH,SAAgB,eAAe,CAAC,IAAgB,EAAE,QAAuB;IACvE,KAAK,IAAI,IAAI,GAAG,CAAC,EAAE,IAAI,GAAG,QAAQ,CAAC,MAAM,EAAE,IAAI,EAAE,EAAE,CAAC;QAClD,MAAM,OAAO,GAAG,QAAQ,CAAC,IAAI,CAAC,CAAC;QAE/B,IAAI,OAAO,sCAA8B,KAAK,CAAC,EAAE,CAAC;YAChD,MAAM,UAAU,GAAG,OAAO,sCAA8B,CAAC;YAEzD,yBAAyB;YACzB,IAAI,IAAI,CAAC,UAAU,CAAC,KAAK,GAAG,IAAI,IAAI,CAAC,UAAU,GAAG,CAAC,CAAC,KAAK,GAAG,EAAE,CAAC;gBAC7D,MAAM,WAAW,GAAG,OAAO,kCAA0B,CAAC;gBACtD,MAAM,WAAW,GAAG,OAAO,kCAA0B,CAAC;gBAEtD,+EAA+E;gBAC/E,gCAAgC;gBAChC,KAAK,IAAI,CAAC,GAAG,WAAW,EAAE,CAAC,GAAG,WAAW,GAAG,WAAW,EAAE,CAAC,EAAE,EAAE,CAAC;oBAC7D,IAAI,IAAI,CAAC,CAAC,CAAC,KAAK,IAAI;wBAAE,OAAO,KAAK,CAAC;gBACrC,CAAC;gBAED,OAAO,IAAI,CAAC;YACd,CAAC;QACH,CAAC;IACH,CAAC;IAED,OAAO,IAAI,CAAC;AACd,CAAC;AAQD,gBAAgB;AAChB,MAAa,eAAgB,SAAQ,2BAAgB;IAYnC,GAAG,CACjB,IAAqB,EACrB,EAAK,EACL,QAA8B;QAE9B,IAAI,CAAC;YACH,OAAO,KAAK,CAAC,GAAG,CAAC,IAAI,EAAE,EAAE,EAAE,QAAQ,CAAC,CAAC;QACvC,CAAC;QAAC,OAAO,KAAK,EAAE,CAAC;YACf,MAAM,IAAI,0CAAkC,CAAC,KAAK,CAAC,OAAO,EAAE,EAAE,KAAK,EAAE,CAAC,CAAC;QACzE,CAAC;IACH,CAAC;IAED,MAAM,CAAC,EAAE,CAAC,KAAc;QACtB,OAAO,KAAK,YAAY,eAAe,CAAC;IAC1C,CAAC;IAED,MAAM,CAAC,IAAI,CAAC,IAAgB;QAC1B,MAAM,QAAQ,GAAG,IAAA,6BAAsB,EAAC,IAAI,EAAE,CAAC,CAAC,CAAC;QACjD,MAAM,OAAO,GAAG,eAAe,CAAC,IAAI,EAAE,QAAQ,CAAC,CAAC;QAChD,OAAO,OAAO;YACZ,CAAC,CAAC,IAAI,eAAe,CAAC,IAAI,EAAE,CAAC,EAAE,KAAK,EAAE,QAAQ,CAAC;YAC/C,CAAC,CAAC,IAAI,IAAI,CAAC,IAAI,EAAE,CAAC,EAAE,KAAK,EAAE,QAAQ,CAAC,CAAC;IACzC,CAAC;IAKD;;;;;OAKG;IACH,IAAI,qBAAqB;QACvB,yBAAyB;QACzB,MAAM,UAAU,GAAG,IAAI,CAAC,EAAE,KAAK,CAAC,IAAI,IAAI,CAAC,IAAI,KAAK,2BAAmB,CAAC,gBAAgB,CAAC;QACvF,IAAI,UAAU;YAAE,OAAO,IAAI,CAAC;QAE5B,IAAI,IAAI,CAAC,EAAE,KAAK,CAAC;YAAE,OAAO,KAAK,CAAC;QAEhC,8CAA8C;QAC9C,MAAM,cAAc,GAClB,IAAI,CAAC,GAAG,CAAC,mBAAmB,EAAE,eAAQ,CAAC,MAAM,CAAC,EAAE,SAAS,CAAC,MAAM,CAAC;YACjE,2BAAmB,CAAC,gBAAgB,CAAC;QACvC,IAAI,cAAc;YAAE,OAAO,IAAI,CAAC;QAEhC,MAAM,WAAW,GAAG,IAAI,CAAC,GAAG,CAAC,aAAa,EAAE,eAAQ,CAAC,KAAK,CAAC,CAAC;QAC5D,IAAI,WAAW,EAAE,IAAI,EAAE,EAAE,CAAC;YACxB,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,WAAW,CAAC,IAAI,EAAE,EAAE,CAAC,EAAE,EAAE,CAAC;gBAC5C,MAAM,YAAY,GAChB,WAAW,CAAC,GAAG,CAAC,CAAC,EAAE,eAAQ,CAAC,MAAM,CAAC,EAAE,SAAS,CAAC,MAAM,CAAC;oBACtD,2BAAmB,CAAC,gBAAgB,CAAC;gBAEvC,0CAA0C;gBAC1C,IAAI,YAAY;oBAAE,OAAO,IAAI,CAAC;YAChC,CAAC;QACH,CAAC;QAED,OAAO,KAAK,CAAC;IACf,CAAC;IAED;;;OAGG;IACH,IAAI,aAAa;QACf,OAAO,CACL,IAAI,CAAC,GAAG,CAAC,eAAe,EAAE,eAAQ,CAAC,MAAM,CAAC,EAAE,QAAQ,CAAC;YACnD,aAAa,EAAE,KAAK;YACpB,YAAY,EAAE,KAAK;YACnB,cAAc,EAAE,KAAK;YACrB,UAAU,EAAE,EAAE,IAAI,EAAE,IAAI,EAAE;SAC3B,CAAC,IAAI,IAAI,CACX,CAAC;IACJ,CAAC;IAED;;;;OAIG;IACH,IAAW,aAAa;QACtB,OAAO,CACL,IAAI,CAAC,GAAG,CAAC,QAAQ,EAAE,eAAQ,CAAC,MAAM,CAAC,EAAE,GAAG,CAAC,eAAe,EAAE,eAAQ,CAAC,SAAS,CAAC;YAC7E,IAAI,CAAC,GAAG,CAAC,eAAe,EAAE,eAAQ,CAAC,SAAS,CAAC,CAC9C,CAAC;IACJ,CAAC;IAED,IAAW,aAAa;QACtB,OAAO,IAAI,CAAC,GAAG,CAAC,eAAe,EAAE,eAAQ,CAAC,SAAS,CAAC,CAAC;IACvD,CAAC;IAED,oEAAoE;IACpE,IAAW,EAAE;QACX,OAAO,IAAI,CAAC,SAAS,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;IACtC,CAAC;IAED,IAAW,IAAI;QACb,OAAO,IAAI,CAAC,GAAG,CAAC,MAAM,EAAE,eAAQ,CAAC,MAAM,CAAC,CAAC;IAC3C,CAAC;IAED,IAAW,MAAM;QACf,OAAO,IAAI,CAAC,GAAG,CAAC,QAAQ,EAAE,eAAQ,CAAC,MAAM,CAAC,CAAC;IAC7C,CAAC;IAED,IAAW,IAAI;QACb,OAAO,IAAI,CAAC,SAAS,CAAC,MAAM,CAAC,CAAC;IAChC,CAAC;IAGD,IAAW,YAAY;QACrB,IAAI,CAAC,CAAC,aAAa,IAAI,IAAI,CAAC,EAAE,CAAC;YAC7B,MAAM,cAAc,GAAG,IAAI,CAAC,GAAG,CAAC,cAAc,EAAE,eAAQ,CAAC,MAAM,CAAC,CAAC;YACjE,IAAI,cAAc,IAAI,IAAI,EAAE,CAAC;gBAC3B,IAAI,CAAC,WAAW,GAAG,IAAI,CAAC;gBACxB,OAAO,IAAI,CAAC;YACd,CAAC;YACD,MAAM,WAAW,GAAG,cAAc,CAAC,GAAG,CAAC,aAAa,EAAE,eAAQ,CAAC,SAAS,EAAE,IAAI,CAAC,CAAC;YAChF,MAAM,SAAS,GAAG,cAAc,CAAC,GAAG,CAAC,WAAW,EAAE,eAAQ,CAAC,MAAM,CAAC,EAAE,QAAQ,EAAE,CAAC;YAC/E,wEAAwE;YACxE,IAAI,CAAC,WAAW,GAAG,EAAE,WAAW,EAAE,SAAS,EAAE,CAAC;QAChD,CAAC;QACD,OAAO,IAAI,CAAC,WAAW,IAAI,IAAI,CAAC;IAClC,CAAC;IAEe,QAAQ,CAAC,OAA8B;QACrD,MAAM,gBAAgB,GAAG;YACvB,GAAG,IAAA,gCAAyB,EAAC,OAAO,IAAI,EAAE,CAAC;YAC3C,UAAU,EAAE,IAAA,gCAAyB,EAAC,OAAO,CAAC;SAC/C,CAAC;QACF,OAAO,KAAK,CAAC,QAAQ,CAAC,gBAAgB,CAAC,CAAC;IAC1C,CAAC;;AA/IH,0CAgJC;AA5GC,SAAS;AACF,qBAAK,GAAG,IAAI,eAAe,CAAC,IAAI,UAAU,CAAC,CAAC,EAAE,EAAE,CAAC,EAAE,CAAC,EAAE,CAAC,EAAE,EAAE,EAAE,GAAG,EAAE,GAAG,EAAE,CAAC,EAAE,CAAC,EAAE,CAAC,EAAE,CAAC,EAAE,CAAC,EAAE,CAAC,CAAC,CAAC,CAAC,CAAC;AA6GpG,gBAAgB;AAChB,MAAa,cAAe,SAAQ,eAAe;IAAnD;;QAsBU,WAAM,GAA4B,IAAI,CAAC;QACvC,aAAQ,GAAG,CAAC,CAAC;QAwBb,oBAAe,GAA4B,IAAI,CAAC;IA+D1D,CAAC;IA5FC,MAAM,CAAU,EAAE,CAAC,KAAc;QAC/B,OAAO,KAAK,YAAY,cAAc,IAAI,KAAK,KAAK,cAAc,CAAC,YAAY,CAAC;IAClF,CAAC;IAKD,IAAI,MAAM;QACR,OAAO,IAAI,CAAC,GAAG,CAAC,QAAQ,EAAE,eAAQ,CAAC,MAAM,EAAE,IAAI,CAAC,CAAC;IACnD,CAAC;IAED,IAAW,EAAE;QACX,IAAI,CAAC;YACH,OAAO,WAAI,CAAC,UAAU,CAAC,IAAI,CAAC,MAAM,CAAC,GAAG,CAAC,IAAI,EAAE,eAAQ,CAAC,IAAI,EAAE,IAAI,CAAC,CAAC,CAAC;QACrE,CAAC;QAAC,OAAO,KAAK,EAAE,CAAC;YACf,MAAM,IAAI,0CAAkC,CAAC,KAAK,CAAC,OAAO,EAAE,EAAE,KAAK,EAAE,CAAC,CAAC;QACzE,CAAC;IACH,CAAC;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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/wire_protocol/shared.js b/backend/node_modules/mongodb/lib/cmap/wire_protocol/shared.js
new file mode 100644
index 0000000..bbe66b5
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/wire_protocol/shared.js
@@ -0,0 +1,35 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.getReadPreference = getReadPreference;
+exports.isSharded = isSharded;
+const error_1 = require("../../error");
+const read_preference_1 = require("../../read_preference");
+const common_1 = require("../../sdam/common");
+const topology_description_1 = require("../../sdam/topology_description");
+function getReadPreference(options) {
+    // Default to command version of the readPreference.
+    let readPreference = options?.readPreference ?? read_preference_1.ReadPreference.primary;
+    if (typeof readPreference === 'string') {
+        readPreference = read_preference_1.ReadPreference.fromString(readPreference);
+    }
+    if (!(readPreference instanceof read_preference_1.ReadPreference)) {
+        throw new error_1.MongoInvalidArgumentError('Option "readPreference" must be a ReadPreference instance');
+    }
+    return readPreference;
+}
+function isSharded(topologyOrServer) {
+    if (topologyOrServer == null) {
+        return false;
+    }
+    if (topologyOrServer.description && topologyOrServer.description.type === common_1.ServerType.Mongos) {
+        return true;
+    }
+    // NOTE: This is incredibly inefficient, and should be removed once command construction
+    // happens based on `Server` not `Topology`.
+    if (topologyOrServer.description && topologyOrServer.description instanceof topology_description_1.TopologyDescription) {
+        const servers = Array.from(topologyOrServer.description.servers.values());
+        return servers.some((server) => server.type === common_1.ServerType.Mongos);
+    }
+    return false;
+}
+//# sourceMappingURL=shared.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cmap/wire_protocol/shared.js.map b/backend/node_modules/mongodb/lib/cmap/wire_protocol/shared.js.map
new file mode 100644
index 0000000..a0cce4d
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cmap/wire_protocol/shared.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/collection.js b/backend/node_modules/mongodb/lib/collection.js
new file mode 100644
index 0000000..f064b47
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/collection.js
@@ -0,0 +1,707 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Collection = void 0;
+const bson_1 = require("./bson");
+const ordered_1 = require("./bulk/ordered");
+const unordered_1 = require("./bulk/unordered");
+const change_stream_1 = require("./change_stream");
+const aggregation_cursor_1 = require("./cursor/aggregation_cursor");
+const find_cursor_1 = require("./cursor/find_cursor");
+const list_indexes_cursor_1 = require("./cursor/list_indexes_cursor");
+const list_search_indexes_cursor_1 = require("./cursor/list_search_indexes_cursor");
+const error_1 = require("./error");
+const bulk_write_1 = require("./operations/bulk_write");
+const count_1 = require("./operations/count");
+const delete_1 = require("./operations/delete");
+const distinct_1 = require("./operations/distinct");
+const drop_1 = require("./operations/drop");
+const estimated_document_count_1 = require("./operations/estimated_document_count");
+const execute_operation_1 = require("./operations/execute_operation");
+const find_and_modify_1 = require("./operations/find_and_modify");
+const indexes_1 = require("./operations/indexes");
+const insert_1 = require("./operations/insert");
+const is_capped_1 = require("./operations/is_capped");
+const options_operation_1 = require("./operations/options_operation");
+const rename_1 = require("./operations/rename");
+const create_1 = require("./operations/search_indexes/create");
+const drop_2 = require("./operations/search_indexes/drop");
+const update_1 = require("./operations/search_indexes/update");
+const update_2 = require("./operations/update");
+const read_concern_1 = require("./read_concern");
+const read_preference_1 = require("./read_preference");
+const utils_1 = require("./utils");
+const write_concern_1 = require("./write_concern");
+/**
+ * The **Collection** class is an internal class that embodies a MongoDB collection
+ * allowing for insert/find/update/delete and other command operation on that MongoDB collection.
+ *
+ * **COLLECTION Cannot directly be instantiated**
+ * @public
+ *
+ * @example
+ * ```ts
+ * import { MongoClient } from 'mongodb';
+ *
+ * interface Pet {
+ *   name: string;
+ *   kind: 'dog' | 'cat' | 'fish';
+ * }
+ *
+ * const client = new MongoClient('mongodb://localhost:27017');
+ * const pets = client.db().collection<Pet>('pets');
+ *
+ * const petCursor = pets.find();
+ *
+ * for await (const pet of petCursor) {
+ *   console.log(`${pet.name} is a ${pet.kind}!`);
+ * }
+ * ```
+ */
+class Collection {
+    /**
+     * Create a new Collection instance
+     * @internal
+     */
+    constructor(db, name, options) {
+        // Internal state
+        this.s = {
+            db,
+            options,
+            namespace: new utils_1.MongoDBCollectionNamespace(db.databaseName, name),
+            pkFactory: db.options?.pkFactory ?? utils_1.DEFAULT_PK_FACTORY,
+            readPreference: read_preference_1.ReadPreference.fromOptions(options),
+            bsonOptions: (0, bson_1.resolveBSONOptions)(options, db),
+            readConcern: read_concern_1.ReadConcern.fromOptions(options),
+            writeConcern: write_concern_1.WriteConcern.fromOptions(options)
+        };
+        this.client = db.client;
+    }
+    /**
+     * The name of the database this collection belongs to
+     */
+    get dbName() {
+        return this.s.namespace.db;
+    }
+    /**
+     * The name of this collection
+     */
+    get collectionName() {
+        return this.s.namespace.collection;
+    }
+    /**
+     * The namespace of this collection, in the format `${this.dbName}.${this.collectionName}`
+     */
+    get namespace() {
+        return this.fullNamespace.toString();
+    }
+    /**
+     *  @internal
+     *
+     * The `MongoDBNamespace` for the collection.
+     */
+    get fullNamespace() {
+        return this.s.namespace;
+    }
+    /**
+     * The current readConcern of the collection. If not explicitly defined for
+     * this collection, will be inherited from the parent DB
+     */
+    get readConcern() {
+        if (this.s.readConcern == null) {
+            return this.s.db.readConcern;
+        }
+        return this.s.readConcern;
+    }
+    /**
+     * The current readPreference of the collection. If not explicitly defined for
+     * this collection, will be inherited from the parent DB
+     */
+    get readPreference() {
+        if (this.s.readPreference == null) {
+            return this.s.db.readPreference;
+        }
+        return this.s.readPreference;
+    }
+    get bsonOptions() {
+        return this.s.bsonOptions;
+    }
+    /**
+     * The current writeConcern of the collection. If not explicitly defined for
+     * this collection, will be inherited from the parent DB
+     */
+    get writeConcern() {
+        if (this.s.writeConcern == null) {
+            return this.s.db.writeConcern;
+        }
+        return this.s.writeConcern;
+    }
+    /** The current index hint for the collection */
+    get hint() {
+        return this.s.collectionHint;
+    }
+    set hint(v) {
+        this.s.collectionHint = (0, utils_1.normalizeHintField)(v);
+    }
+    get timeoutMS() {
+        return this.s.options.timeoutMS;
+    }
+    /**
+     * Inserts a single document into MongoDB. If documents passed in do not contain the **_id** field,
+     * one will be added to each of the documents missing it by the driver, mutating the document. This behavior
+     * can be overridden by setting the **forceServerObjectId** flag.
+     *
+     * @param doc - The document to insert
+     * @param options - Optional settings for the command
+     */
+    async insertOne(doc, options) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new insert_1.InsertOneOperation(this, doc, (0, utils_1.resolveOptions)(this, options)));
+    }
+    /**
+     * Inserts an array of documents into MongoDB. If documents passed in do not contain the **_id** field,
+     * one will be added to each of the documents missing it by the driver, mutating the document. This behavior
+     * can be overridden by setting the **forceServerObjectId** flag.
+     *
+     * @param docs - The documents to insert
+     * @param options - Optional settings for the command
+     */
+    async insertMany(docs, options) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new insert_1.InsertManyOperation(this, docs, (0, utils_1.resolveOptions)(this, options ?? { ordered: true })));
+    }
+    /**
+     * Perform a bulkWrite operation without a fluent API
+     *
+     * Legal operation types are
+     * - `insertOne`
+     * - `replaceOne`
+     * - `updateOne`
+     * - `updateMany`
+     * - `deleteOne`
+     * - `deleteMany`
+     *
+     * If documents passed in do not contain the **_id** field,
+     * one will be added to each of the documents missing it by the driver, mutating the document. This behavior
+     * can be overridden by setting the **forceServerObjectId** flag.
+     *
+     * @param operations - Bulk operations to perform
+     * @param options - Optional settings for the command
+     * @throws MongoDriverError if operations is not an array
+     */
+    async bulkWrite(operations, options) {
+        if (!Array.isArray(operations)) {
+            throw new error_1.MongoInvalidArgumentError('Argument "operations" must be an array of documents');
+        }
+        return await (0, execute_operation_1.executeOperation)(this.client, new bulk_write_1.BulkWriteOperation(this, operations, (0, utils_1.resolveOptions)(this, options ?? { ordered: true })));
+    }
+    /**
+     * Update a single document in a collection
+     *
+     * The value of `update` can be either:
+     * - UpdateFilter<TSchema> - A document that contains update operator expressions,
+     * - Document[] - an aggregation pipeline.
+     *
+     * @param filter - The filter used to select the document to update
+     * @param update - The modifications to apply
+     * @param options - Optional settings for the command
+     */
+    async updateOne(filter, update, options) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new update_2.UpdateOneOperation(this, filter, update, (0, utils_1.resolveOptions)(this, options)));
+    }
+    /**
+     * Replace a document in a collection with another document
+     *
+     * @param filter - The filter used to select the document to replace
+     * @param replacement - The Document that replaces the matching document
+     * @param options - Optional settings for the command
+     */
+    async replaceOne(filter, replacement, options) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new update_2.ReplaceOneOperation(this, filter, replacement, (0, utils_1.resolveOptions)(this, options)));
+    }
+    /**
+     * Update multiple documents in a collection
+     *
+     * The value of `update` can be either:
+     * - UpdateFilter<TSchema> - A document that contains update operator expressions,
+     * - Document[] - an aggregation pipeline.
+     *
+     * @param filter - The filter used to select the document to update
+     * @param update - The modifications to apply
+     * @param options - Optional settings for the command
+     */
+    async updateMany(filter, update, options) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new update_2.UpdateManyOperation(this, filter, update, (0, utils_1.resolveOptions)(this, options)));
+    }
+    /**
+     * Delete a document from a collection
+     *
+     * @param filter - The filter used to select the document to remove
+     * @param options - Optional settings for the command
+     */
+    async deleteOne(filter = {}, options = {}) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new delete_1.DeleteOneOperation(this, filter, (0, utils_1.resolveOptions)(this, options)));
+    }
+    /**
+     * Delete multiple documents from a collection
+     *
+     * @param filter - The filter used to select the documents to remove
+     * @param options - Optional settings for the command
+     */
+    async deleteMany(filter = {}, options = {}) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new delete_1.DeleteManyOperation(this, filter, (0, utils_1.resolveOptions)(this, options)));
+    }
+    /**
+     * Rename the collection.
+     *
+     * @remarks
+     * This operation does not inherit options from the Db or MongoClient.
+     *
+     * @param newName - New name of of the collection.
+     * @param options - Optional settings for the command
+     */
+    async rename(newName, options) {
+        // Intentionally, we do not inherit options from parent for this operation.
+        return await (0, execute_operation_1.executeOperation)(this.client, new rename_1.RenameOperation(this, newName, (0, utils_1.resolveOptions)(undefined, {
+            ...options,
+            readPreference: read_preference_1.ReadPreference.PRIMARY
+        })));
+    }
+    /**
+     * Drop the collection from the database, removing it permanently. New accesses will create a new collection.
+     *
+     * @param options - Optional settings for the command
+     */
+    async drop(options) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new drop_1.DropCollectionOperation(this.s.db, this.collectionName, options));
+    }
+    async findOne(filter = {}, options = {}) {
+        const cursor = this.find(filter, options).limit(-1).batchSize(1);
+        const res = await cursor.next();
+        await cursor.close();
+        return res;
+    }
+    find(filter = {}, options = {}) {
+        return new find_cursor_1.FindCursor(this.client, this.s.namespace, filter, (0, utils_1.resolveOptions)(this, options));
+    }
+    /**
+     * Returns the options of the collection.
+     *
+     * @param options - Optional settings for the command
+     */
+    async options(options) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new options_operation_1.OptionsOperation(this, (0, utils_1.resolveOptions)(this, options)));
+    }
+    /**
+     * Returns if the collection is a capped collection
+     *
+     * @param options - Optional settings for the command
+     */
+    async isCapped(options) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new is_capped_1.IsCappedOperation(this, (0, utils_1.resolveOptions)(this, options)));
+    }
+    /**
+     * Creates an index on the db and collection collection.
+     *
+     * @param indexSpec - The field name or index specification to create an index for
+     * @param options - Optional settings for the command
+     *
+     * @example
+     * ```ts
+     * const collection = client.db('foo').collection('bar');
+     *
+     * await collection.createIndex({ a: 1, b: -1 });
+     *
+     * // Alternate syntax for { c: 1, d: -1 } that ensures order of indexes
+     * await collection.createIndex([ [c, 1], [d, -1] ]);
+     *
+     * // Equivalent to { e: 1 }
+     * await collection.createIndex('e');
+     *
+     * // Equivalent to { f: 1, g: 1 }
+     * await collection.createIndex(['f', 'g'])
+     *
+     * // Equivalent to { h: 1, i: -1 }
+     * await collection.createIndex([ { h: 1 }, { i: -1 } ]);
+     *
+     * // Equivalent to { j: 1, k: -1, l: 2d }
+     * await collection.createIndex(['j', ['k', -1], { l: '2d' }])
+     * ```
+     */
+    async createIndex(indexSpec, options) {
+        const indexes = await (0, execute_operation_1.executeOperation)(this.client, indexes_1.CreateIndexesOperation.fromIndexSpecification(this, this.collectionName, indexSpec, (0, utils_1.resolveOptions)(this, options)));
+        return indexes[0];
+    }
+    /**
+     * Creates multiple indexes in the collection, this method is only supported for
+     * MongoDB 2.6 or higher. Earlier version of MongoDB will throw a command not supported
+     * error.
+     *
+     * **Note**: Unlike {@link Collection#createIndex| createIndex}, this function takes in raw index specifications.
+     * Index specifications are defined {@link https://www.mongodb.com/docs/manual/reference/command/createIndexes/| here}.
+     *
+     * @param indexSpecs - An array of index specifications to be created
+     * @param options - Optional settings for the command
+     *
+     * @example
+     * ```ts
+     * const collection = client.db('foo').collection('bar');
+     * await collection.createIndexes([
+     *   // Simple index on field fizz
+     *   {
+     *     key: { fizz: 1 },
+     *   }
+     *   // wildcard index
+     *   {
+     *     key: { '$**': 1 }
+     *   },
+     *   // named index on darmok and jalad
+     *   {
+     *     key: { darmok: 1, jalad: -1 }
+     *     name: 'tanagra'
+     *   }
+     * ]);
+     * ```
+     */
+    async createIndexes(indexSpecs, options) {
+        return await (0, execute_operation_1.executeOperation)(this.client, indexes_1.CreateIndexesOperation.fromIndexDescriptionArray(this, this.collectionName, indexSpecs, (0, utils_1.resolveOptions)(this, { ...options, maxTimeMS: undefined })));
+    }
+    /**
+     * Drops an index from this collection.
+     *
+     * @param indexName - Name of the index to drop.
+     * @param options - Optional settings for the command
+     */
+    async dropIndex(indexName, options) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new indexes_1.DropIndexOperation(this, indexName, {
+            ...(0, utils_1.resolveOptions)(this, options),
+            readPreference: read_preference_1.ReadPreference.primary
+        }));
+    }
+    /**
+     * Drops all indexes from this collection.
+     *
+     * @param options - Optional settings for the command
+     */
+    async dropIndexes(options) {
+        try {
+            await (0, execute_operation_1.executeOperation)(this.client, new indexes_1.DropIndexOperation(this, '*', (0, utils_1.resolveOptions)(this, options)));
+            return true;
+        }
+        catch (error) {
+            // TODO(NODE-6517): Driver should only filter for namespace not found error. Other errors should be thrown.
+            if (error instanceof error_1.MongoOperationTimeoutError)
+                throw error;
+            return false;
+        }
+    }
+    /**
+     * Get the list of all indexes information for the collection.
+     *
+     * @param options - Optional settings for the command
+     */
+    listIndexes(options) {
+        return new list_indexes_cursor_1.ListIndexesCursor(this, (0, utils_1.resolveOptions)(this, options));
+    }
+    /**
+     * Checks if one or more indexes exist on the collection, fails on first non-existing index
+     *
+     * @param indexes - One or more index names to check.
+     * @param options - Optional settings for the command
+     */
+    async indexExists(indexes, options) {
+        const indexNames = Array.isArray(indexes) ? indexes : [indexes];
+        const allIndexes = new Set(await this.listIndexes(options)
+            .map(({ name }) => name)
+            .toArray());
+        return indexNames.every(name => allIndexes.has(name));
+    }
+    async indexInformation(options) {
+        return await this.indexes({
+            ...options,
+            full: options?.full ?? false
+        });
+    }
+    /**
+     * Gets an estimate of the count of documents in a collection using collection metadata.
+     * This will always run a count command on all server versions.
+     *
+     * due to an oversight in versions 5.0.0-5.0.8 of MongoDB, the count command,
+     * which estimatedDocumentCount uses in its implementation, was not included in v1 of
+     * the Stable API, and so users of the Stable API with estimatedDocumentCount are
+     * recommended to upgrade their server version to 5.0.9+ or set apiStrict: false to avoid
+     * encountering errors.
+     *
+     * @see {@link https://www.mongodb.com/docs/manual/reference/command/count/#behavior|Count: Behavior}
+     * @param options - Optional settings for the command
+     */
+    async estimatedDocumentCount(options) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new estimated_document_count_1.EstimatedDocumentCountOperation(this, (0, utils_1.resolveOptions)(this, options)));
+    }
+    /**
+     * Gets the number of documents matching the filter.
+     * For a fast count of the total documents in a collection see {@link Collection#estimatedDocumentCount| estimatedDocumentCount}.
+     *
+     * Due to countDocuments using the $match aggregation pipeline stage, certain query operators cannot be used in countDocuments. This includes the $where and $near query operators, among others. Details can be found in the documentation for the $match aggregation pipeline stage.
+     *
+     * **Note**: When migrating from {@link Collection#count| count} to {@link Collection#countDocuments| countDocuments}
+     * the following query operators must be replaced:
+     *
+     * | Operator | Replacement |
+     * | -------- | ----------- |
+     * | `$where`   | [`$expr`][1] |
+     * | `$near`    | [`$geoWithin`][2] with [`$center`][3] |
+     * | `$nearSphere` | [`$geoWithin`][2] with [`$centerSphere`][4] |
+     *
+     * [1]: https://www.mongodb.com/docs/manual/reference/operator/query/expr/
+     * [2]: https://www.mongodb.com/docs/manual/reference/operator/query/geoWithin/
+     * [3]: https://www.mongodb.com/docs/manual/reference/operator/query/center/#op._S_center
+     * [4]: https://www.mongodb.com/docs/manual/reference/operator/query/centerSphere/#op._S_centerSphere
+     *
+     * @param filter - The filter for the count
+     * @param options - Optional settings for the command
+     *
+     * @see https://www.mongodb.com/docs/manual/reference/operator/query/expr/
+     * @see https://www.mongodb.com/docs/manual/reference/operator/query/geoWithin/
+     * @see https://www.mongodb.com/docs/manual/reference/operator/query/center/#op._S_center
+     * @see https://www.mongodb.com/docs/manual/reference/operator/query/centerSphere/#op._S_centerSphere
+     */
+    async countDocuments(filter = {}, options = {}) {
+        const pipeline = [];
+        pipeline.push({ $match: filter });
+        if (typeof options.skip === 'number') {
+            pipeline.push({ $skip: options.skip });
+        }
+        if (typeof options.limit === 'number') {
+            pipeline.push({ $limit: options.limit });
+        }
+        pipeline.push({ $group: { _id: 1, n: { $sum: 1 } } });
+        const cursor = this.aggregate(pipeline, options);
+        const doc = await cursor.next();
+        await cursor.close();
+        return doc?.n ?? 0;
+    }
+    async distinct(key, filter = {}, options = {}) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new distinct_1.DistinctOperation(this, key, filter, (0, utils_1.resolveOptions)(this, options)));
+    }
+    async indexes(options) {
+        const indexes = await this.listIndexes(options).toArray();
+        const full = options?.full ?? true;
+        if (full) {
+            return indexes;
+        }
+        const object = Object.fromEntries(indexes.map(({ name, key }) => [name, Object.entries(key)]));
+        return object;
+    }
+    async findOneAndDelete(filter, options) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new find_and_modify_1.FindOneAndDeleteOperation(this, filter, (0, utils_1.resolveOptions)(this, options)));
+    }
+    async findOneAndReplace(filter, replacement, options) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new find_and_modify_1.FindOneAndReplaceOperation(this, filter, replacement, (0, utils_1.resolveOptions)(this, options)));
+    }
+    async findOneAndUpdate(filter, update, options) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new find_and_modify_1.FindOneAndUpdateOperation(this, filter, update, (0, utils_1.resolveOptions)(this, options)));
+    }
+    /**
+     * Execute an aggregation framework pipeline against the collection, needs MongoDB \>= 2.2
+     *
+     * @param pipeline - An array of aggregation pipelines to execute
+     * @param options - Optional settings for the command
+     */
+    aggregate(pipeline = [], options) {
+        if (!Array.isArray(pipeline)) {
+            throw new error_1.MongoInvalidArgumentError('Argument "pipeline" must be an array of aggregation stages');
+        }
+        return new aggregation_cursor_1.AggregationCursor(this.client, this.s.namespace, pipeline, (0, utils_1.resolveOptions)(this, options));
+    }
+    /**
+     * Create a new Change Stream, watching for new changes (insertions, updates, replacements, deletions, and invalidations) in this collection.
+     *
+     * @remarks
+     * watch() accepts two generic arguments for distinct use cases:
+     * - The first is to override the schema that may be defined for this specific collection
+     * - The second is to override the shape of the change stream document entirely, if it is not provided the type will default to ChangeStreamDocument of the first argument
+     * @example
+     * By just providing the first argument I can type the change to be `ChangeStreamDocument<{ _id: number }>`
+     * ```ts
+     * collection.watch<{ _id: number }>()
+     *   .on('change', change => console.log(change._id.toFixed(4)));
+     * ```
+     *
+     * @example
+     * Passing a second argument provides a way to reflect the type changes caused by an advanced pipeline.
+     * Here, we are using a pipeline to have MongoDB filter for insert changes only and add a comment.
+     * No need start from scratch on the ChangeStreamInsertDocument type!
+     * By using an intersection we can save time and ensure defaults remain the same type!
+     * ```ts
+     * collection
+     *   .watch<Schema, ChangeStreamInsertDocument<Schema> & { comment: string }>([
+     *     { $addFields: { comment: 'big changes' } },
+     *     { $match: { operationType: 'insert' } }
+     *   ])
+     *   .on('change', change => {
+     *     change.comment.startsWith('big');
+     *     change.operationType === 'insert';
+     *     // No need to narrow in code because the generics did that for us!
+     *     expectType<Schema>(change.fullDocument);
+     *   });
+     * ```
+     *
+     * @remarks
+     * When `timeoutMS` is configured for a change stream, it will have different behaviour depending
+     * on whether the change stream is in iterator mode or emitter mode. In both cases, a change
+     * stream will time out if it does not receive a change event within `timeoutMS` of the last change
+     * event.
+     *
+     * Note that if a change stream is consistently timing out when watching a collection, database or
+     * client that is being changed, then this may be due to the server timing out before it can finish
+     * processing the existing oplog. To address this, restart the change stream with a higher
+     * `timeoutMS`.
+     *
+     * If the change stream times out the initial aggregate operation to establish the change stream on
+     * the server, then the client will close the change stream. If the getMore calls to the server
+     * time out, then the change stream will be left open, but will throw a MongoOperationTimeoutError
+     * when in iterator mode and emit an error event that returns a MongoOperationTimeoutError in
+     * emitter mode.
+     *
+     * To determine whether or not the change stream is still open following a timeout, check the
+     * {@link ChangeStream.closed} getter.
+     *
+     * @example
+     * In iterator mode, if a next() call throws a timeout error, it will attempt to resume the change stream.
+     * The next call can just be retried after this succeeds.
+     * ```ts
+     * const changeStream = collection.watch([], { timeoutMS: 100 });
+     * try {
+     *     await changeStream.next();
+     * } catch (e) {
+     *     if (e instanceof MongoOperationTimeoutError && !changeStream.closed) {
+     *       await changeStream.next();
+     *     }
+     *     throw e;
+     * }
+     * ```
+     *
+     * @example
+     * In emitter mode, if the change stream goes `timeoutMS` without emitting a change event, it will
+     * emit an error event that returns a MongoOperationTimeoutError, but will not close the change
+     * stream unless the resume attempt fails. There is no need to re-establish change listeners as
+     * this will automatically continue emitting change events once the resume attempt completes.
+     *
+     * ```ts
+     * const changeStream = collection.watch([], { timeoutMS: 100 });
+     * changeStream.on('change', console.log);
+     * changeStream.on('error', e => {
+     *     if (e instanceof MongoOperationTimeoutError && !changeStream.closed) {
+     *         // do nothing
+     *     } else {
+     *         changeStream.close();
+     *     }
+     * });
+     * ```
+     *
+     * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents. This allows for filtering (using $match) and manipulating the change stream documents.
+     * @param options - Optional settings for the command
+     * @typeParam TLocal - Type of the data being detected by the change stream
+     * @typeParam TChange - Type of the whole change stream document emitted
+     */
+    watch(pipeline = [], options = {}) {
+        // Allow optionally not specifying a pipeline
+        if (!Array.isArray(pipeline)) {
+            options = pipeline;
+            pipeline = [];
+        }
+        return new change_stream_1.ChangeStream(this, pipeline, (0, utils_1.resolveOptions)(this, options));
+    }
+    /**
+     * Initiate an Out of order batch write operation. All operations will be buffered into insert/update/remove commands executed out of order.
+     *
+     * @throws MongoNotConnectedError
+     * @remarks
+     * **NOTE:** MongoClient must be connected prior to calling this method due to a known limitation in this legacy implementation.
+     * However, `collection.bulkWrite()` provides an equivalent API that does not require prior connecting.
+     */
+    initializeUnorderedBulkOp(options) {
+        return new unordered_1.UnorderedBulkOperation(this, (0, utils_1.resolveOptions)(this, options));
+    }
+    /**
+     * Initiate an In order bulk write operation. Operations will be serially executed in the order they are added, creating a new operation for each switch in types.
+     *
+     * @throws MongoNotConnectedError
+     * @remarks
+     * **NOTE:** MongoClient must be connected prior to calling this method due to a known limitation in this legacy implementation.
+     * However, `collection.bulkWrite()` provides an equivalent API that does not require prior connecting.
+     */
+    initializeOrderedBulkOp(options) {
+        return new ordered_1.OrderedBulkOperation(this, (0, utils_1.resolveOptions)(this, options));
+    }
+    /**
+     * An estimated count of matching documents in the db to a filter.
+     *
+     * **NOTE:** This method has been deprecated, since it does not provide an accurate count of the documents
+     * in a collection. To obtain an accurate count of documents in the collection, use {@link Collection#countDocuments| countDocuments}.
+     * To obtain an estimated count of all documents in the collection, use {@link Collection#estimatedDocumentCount| estimatedDocumentCount}.
+     *
+     * @deprecated use {@link Collection#countDocuments| countDocuments} or {@link Collection#estimatedDocumentCount| estimatedDocumentCount} instead
+     *
+     * @param filter - The filter for the count.
+     * @param options - Optional settings for the command
+     */
+    async count(filter = {}, options = {}) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new count_1.CountOperation(this.fullNamespace, filter, (0, utils_1.resolveOptions)(this, options)));
+    }
+    listSearchIndexes(indexNameOrOptions, options) {
+        options =
+            typeof indexNameOrOptions === 'object' ? indexNameOrOptions : options == null ? {} : options;
+        const indexName = indexNameOrOptions == null
+            ? null
+            : typeof indexNameOrOptions === 'object'
+                ? null
+                : indexNameOrOptions;
+        return new list_search_indexes_cursor_1.ListSearchIndexesCursor(this, indexName, options);
+    }
+    /**
+     * Creates a single search index for the collection.
+     *
+     * @param description - The index description for the new search index.
+     * @returns A promise that resolves to the name of the new search index.
+     *
+     * @remarks Only available when used against a 7.0+ Atlas cluster.
+     */
+    async createSearchIndex(description) {
+        const [index] = await this.createSearchIndexes([description]);
+        return index;
+    }
+    /**
+     * Creates multiple search indexes for the current collection.
+     *
+     * @param descriptions - An array of `SearchIndexDescription`s for the new search indexes.
+     * @returns A promise that resolves to an array of the newly created search index names.
+     *
+     * @remarks Only available when used against a 7.0+ Atlas cluster.
+     * @returns
+     */
+    async createSearchIndexes(descriptions) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new create_1.CreateSearchIndexesOperation(this, descriptions));
+    }
+    /**
+     * Deletes a search index by index name.
+     *
+     * @param name - The name of the search index to be deleted.
+     *
+     * @remarks Only available when used against a 7.0+ Atlas cluster.
+     */
+    async dropSearchIndex(name) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new drop_2.DropSearchIndexOperation(this, name));
+    }
+    /**
+     * Updates a search index by replacing the existing index definition with the provided definition.
+     *
+     * @param name - The name of the search index to update.
+     * @param definition - The new search index definition.
+     *
+     * @remarks Only available when used against a 7.0+ Atlas cluster.
+     */
+    async updateSearchIndex(name, definition) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new update_1.UpdateSearchIndexOperation(this, name, definition));
+    }
+}
+exports.Collection = Collection;
+//# sourceMappingURL=collection.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/collection.js.map b/backend/node_modules/mongodb/lib/collection.js.map
new file mode 100644
index 0000000..d58bd8c
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/collection.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/connection_string.js b/backend/node_modules/mongodb/lib/connection_string.js
new file mode 100644
index 0000000..b478162
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/connection_string.js
@@ -0,0 +1,1113 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.FEATURE_FLAGS = exports.DEFAULT_OPTIONS = exports.OPTIONS = void 0;
+exports.resolveSRVRecord = resolveSRVRecord;
+exports.parseOptions = parseOptions;
+const dns = require("dns");
+const mongodb_connection_string_url_1 = require("mongodb-connection-string-url");
+const url_1 = require("url");
+const mongo_credentials_1 = require("./cmap/auth/mongo_credentials");
+const providers_1 = require("./cmap/auth/providers");
+const client_metadata_1 = require("./cmap/handshake/client_metadata");
+const compression_1 = require("./cmap/wire_protocol/compression");
+const encrypter_1 = require("./encrypter");
+const error_1 = require("./error");
+const mongo_client_1 = require("./mongo_client");
+const mongo_logger_1 = require("./mongo_logger");
+const read_concern_1 = require("./read_concern");
+const read_preference_1 = require("./read_preference");
+const monitor_1 = require("./sdam/monitor");
+const utils_1 = require("./utils");
+const write_concern_1 = require("./write_concern");
+const VALID_TXT_RECORDS = ['authSource', 'replicaSet', 'loadBalanced'];
+const LB_SINGLE_HOST_ERROR = 'loadBalanced option only supported with a single host in the URI';
+const LB_REPLICA_SET_ERROR = 'loadBalanced option not supported with a replicaSet option';
+const LB_DIRECT_CONNECTION_ERROR = 'loadBalanced option not supported when directConnection is provided';
+/**
+ * Lookup a `mongodb+srv` connection string, combine the parts and reparse it as a normal
+ * connection string.
+ *
+ * @param uri - The connection string to parse
+ * @param options - Optional user provided connection string options
+ */
+async function resolveSRVRecord(options) {
+    if (typeof options.srvHost !== 'string') {
+        throw new error_1.MongoAPIError('Option "srvHost" must not be empty');
+    }
+    // Asynchronously start TXT resolution so that we do not have to wait until
+    // the SRV record is resolved before starting a second DNS query.
+    const lookupAddress = options.srvHost;
+    const txtResolutionPromise = dns.promises.resolveTxt(lookupAddress);
+    txtResolutionPromise.then(undefined, utils_1.squashError); // rejections will be handled later
+    // Resolve the SRV record and use the result as the list of hosts to connect to.
+    const addresses = await dns.promises.resolveSrv(`_${options.srvServiceName}._tcp.${lookupAddress}`);
+    if (addresses.length === 0) {
+        throw new error_1.MongoAPIError('No addresses found at host');
+    }
+    for (const { name } of addresses) {
+        (0, utils_1.checkParentDomainMatch)(name, lookupAddress);
+    }
+    const hostAddresses = addresses.map(r => utils_1.HostAddress.fromString(`${r.name}:${r.port ?? 27017}`));
+    validateLoadBalancedOptions(hostAddresses, options, true);
+    // Use the result of resolving the TXT record and add options from there if they exist.
+    let record;
+    try {
+        record = await txtResolutionPromise;
+    }
+    catch (error) {
+        if (error.code !== 'ENODATA' && error.code !== 'ENOTFOUND') {
+            throw error;
+        }
+        return hostAddresses;
+    }
+    if (record.length > 1) {
+        throw new error_1.MongoParseError('Multiple text records not allowed');
+    }
+    const txtRecordOptions = new url_1.URLSearchParams(record[0].join(''));
+    const txtRecordOptionKeys = [...txtRecordOptions.keys()];
+    if (txtRecordOptionKeys.some(key => !VALID_TXT_RECORDS.includes(key))) {
+        throw new error_1.MongoParseError(`Text record may only set any of: ${VALID_TXT_RECORDS.join(', ')}`);
+    }
+    if (VALID_TXT_RECORDS.some(option => txtRecordOptions.get(option) === '')) {
+        throw new error_1.MongoParseError('Cannot have empty URI params in DNS TXT Record');
+    }
+    const source = txtRecordOptions.get('authSource') ?? undefined;
+    const replicaSet = txtRecordOptions.get('replicaSet') ?? undefined;
+    const loadBalanced = txtRecordOptions.get('loadBalanced') ?? undefined;
+    if (!options.userSpecifiedAuthSource &&
+        source &&
+        options.credentials &&
+        !providers_1.AUTH_MECHS_AUTH_SRC_EXTERNAL.has(options.credentials.mechanism)) {
+        options.credentials = mongo_credentials_1.MongoCredentials.merge(options.credentials, { source });
+    }
+    if (!options.userSpecifiedReplicaSet && replicaSet) {
+        options.replicaSet = replicaSet;
+    }
+    if (loadBalanced === 'true') {
+        options.loadBalanced = true;
+    }
+    if (options.replicaSet && options.srvMaxHosts > 0) {
+        throw new error_1.MongoParseError('Cannot combine replicaSet option with srvMaxHosts');
+    }
+    validateLoadBalancedOptions(hostAddresses, options, true);
+    return hostAddresses;
+}
+/**
+ * Checks if TLS options are valid
+ *
+ * @param allOptions - All options provided by user or included in default options map
+ * @throws MongoAPIError if TLS options are invalid
+ */
+function checkTLSOptions(allOptions) {
+    if (!allOptions)
+        return;
+    const check = (a, b) => {
+        if (allOptions.has(a) && allOptions.has(b)) {
+            throw new error_1.MongoAPIError(`The '${a}' option cannot be used with the '${b}' option`);
+        }
+    };
+    check('tlsInsecure', 'tlsAllowInvalidCertificates');
+    check('tlsInsecure', 'tlsAllowInvalidHostnames');
+    check('tlsInsecure', 'tlsDisableCertificateRevocationCheck');
+    check('tlsInsecure', 'tlsDisableOCSPEndpointCheck');
+    check('tlsAllowInvalidCertificates', 'tlsDisableCertificateRevocationCheck');
+    check('tlsAllowInvalidCertificates', 'tlsDisableOCSPEndpointCheck');
+    check('tlsDisableCertificateRevocationCheck', 'tlsDisableOCSPEndpointCheck');
+}
+function getBoolean(name, value) {
+    if (typeof value === 'boolean')
+        return value;
+    switch (value) {
+        case 'true':
+            return true;
+        case 'false':
+            return false;
+        default:
+            throw new error_1.MongoParseError(`${name} must be either "true" or "false"`);
+    }
+}
+function getIntFromOptions(name, value) {
+    const parsedInt = (0, utils_1.parseInteger)(value);
+    if (parsedInt != null) {
+        return parsedInt;
+    }
+    throw new error_1.MongoParseError(`Expected ${name} to be stringified int value, got: ${value}`);
+}
+function getUIntFromOptions(name, value) {
+    const parsedValue = getIntFromOptions(name, value);
+    if (parsedValue < 0) {
+        throw new error_1.MongoParseError(`${name} can only be a positive int value, got: ${value}`);
+    }
+    return parsedValue;
+}
+function* entriesFromString(value) {
+    if (value === '') {
+        return;
+    }
+    const keyValuePairs = value.split(',');
+    for (const keyValue of keyValuePairs) {
+        const [key, value] = keyValue.split(/:(.*)/);
+        if (value == null) {
+            throw new error_1.MongoParseError('Cannot have undefined values in key value pairs');
+        }
+        yield [key, value];
+    }
+}
+class CaseInsensitiveMap extends Map {
+    constructor(entries = []) {
+        super(entries.map(([k, v]) => [k.toLowerCase(), v]));
+    }
+    has(k) {
+        return super.has(k.toLowerCase());
+    }
+    get(k) {
+        return super.get(k.toLowerCase());
+    }
+    set(k, v) {
+        return super.set(k.toLowerCase(), v);
+    }
+    delete(k) {
+        return super.delete(k.toLowerCase());
+    }
+}
+function parseOptions(uri, mongoClient = undefined, options = {}) {
+    if (mongoClient != null && !(mongoClient instanceof mongo_client_1.MongoClient)) {
+        options = mongoClient;
+        mongoClient = undefined;
+    }
+    // validate BSONOptions
+    if (options.useBigInt64 && typeof options.promoteLongs === 'boolean' && !options.promoteLongs) {
+        throw new error_1.MongoAPIError('Must request either bigint or Long for int64 deserialization');
+    }
+    if (options.useBigInt64 && typeof options.promoteValues === 'boolean' && !options.promoteValues) {
+        throw new error_1.MongoAPIError('Must request either bigint or Long for int64 deserialization');
+    }
+    const url = new mongodb_connection_string_url_1.default(uri);
+    const { hosts, isSRV } = url;
+    const mongoOptions = Object.create(null);
+    // Feature flags
+    for (const flag of Object.getOwnPropertySymbols(options)) {
+        if (exports.FEATURE_FLAGS.has(flag)) {
+            mongoOptions[flag] = options[flag];
+        }
+    }
+    mongoOptions.hosts = isSRV ? [] : hosts.map(utils_1.HostAddress.fromString);
+    const urlOptions = new CaseInsensitiveMap();
+    if (url.pathname !== '/' && url.pathname !== '') {
+        const dbName = decodeURIComponent(url.pathname[0] === '/' ? url.pathname.slice(1) : url.pathname);
+        if (dbName) {
+            urlOptions.set('dbName', [dbName]);
+        }
+    }
+    if (url.username !== '') {
+        const auth = {
+            username: decodeURIComponent(url.username)
+        };
+        if (typeof url.password === 'string') {
+            auth.password = decodeURIComponent(url.password);
+        }
+        urlOptions.set('auth', [auth]);
+    }
+    for (const key of url.searchParams.keys()) {
+        const values = url.searchParams.getAll(key);
+        const isReadPreferenceTags = /readPreferenceTags/i.test(key);
+        if (!isReadPreferenceTags && values.length > 1) {
+            throw new error_1.MongoInvalidArgumentError(`URI option "${key}" cannot appear more than once in the connection string`);
+        }
+        if (!isReadPreferenceTags && values.includes('')) {
+            throw new error_1.MongoAPIError(`URI option "${key}" cannot be specified with no value`);
+        }
+        if (!urlOptions.has(key)) {
+            urlOptions.set(key, values);
+        }
+    }
+    const objectOptions = new CaseInsensitiveMap(Object.entries(options).filter(([, v]) => v != null));
+    // Validate options that can only be provided by one of uri or object
+    if (urlOptions.has('serverApi')) {
+        throw new error_1.MongoParseError('URI cannot contain `serverApi`, it can only be passed to the client');
+    }
+    const uriMechanismProperties = urlOptions.get('authMechanismProperties');
+    if (uriMechanismProperties) {
+        for (const property of uriMechanismProperties) {
+            if (/(^|,)ALLOWED_HOSTS:/.test(property)) {
+                throw new error_1.MongoParseError('Auth mechanism property ALLOWED_HOSTS is not allowed in the connection string.');
+            }
+        }
+    }
+    if (objectOptions.has('loadBalanced')) {
+        throw new error_1.MongoParseError('loadBalanced is only a valid option in the URI');
+    }
+    // All option collection
+    const allProvidedOptions = new CaseInsensitiveMap();
+    const allProvidedKeys = new Set([...urlOptions.keys(), ...objectOptions.keys()]);
+    for (const key of allProvidedKeys) {
+        const values = [];
+        const objectOptionValue = objectOptions.get(key);
+        if (objectOptionValue != null) {
+            values.push(objectOptionValue);
+        }
+        const urlValues = urlOptions.get(key) ?? [];
+        values.push(...urlValues);
+        allProvidedOptions.set(key, values);
+    }
+    if (allProvidedOptions.has('tls') || allProvidedOptions.has('ssl')) {
+        const tlsAndSslOpts = (allProvidedOptions.get('tls') || [])
+            .concat(allProvidedOptions.get('ssl') || [])
+            .map(getBoolean.bind(null, 'tls/ssl'));
+        if (new Set(tlsAndSslOpts).size !== 1) {
+            throw new error_1.MongoParseError('All values of tls/ssl must be the same.');
+        }
+    }
+    checkTLSOptions(allProvidedOptions);
+    const unsupportedOptions = (0, utils_1.setDifference)(allProvidedKeys, Array.from(Object.keys(exports.OPTIONS)).map(s => s.toLowerCase()));
+    if (unsupportedOptions.size !== 0) {
+        const optionWord = unsupportedOptions.size > 1 ? 'options' : 'option';
+        const isOrAre = unsupportedOptions.size > 1 ? 'are' : 'is';
+        throw new error_1.MongoParseError(`${optionWord} ${Array.from(unsupportedOptions).join(', ')} ${isOrAre} not supported`);
+    }
+    // Option parsing and setting
+    for (const [key, descriptor] of Object.entries(exports.OPTIONS)) {
+        const values = allProvidedOptions.get(key);
+        if (!values || values.length === 0) {
+            if (exports.DEFAULT_OPTIONS.has(key)) {
+                setOption(mongoOptions, key, descriptor, [exports.DEFAULT_OPTIONS.get(key)]);
+            }
+        }
+        else {
+            const { deprecated } = descriptor;
+            if (deprecated) {
+                const deprecatedMsg = typeof deprecated === 'string' ? `: ${deprecated}` : '';
+                (0, utils_1.emitWarning)(`${key} is a deprecated option${deprecatedMsg}`);
+            }
+            setOption(mongoOptions, key, descriptor, values);
+        }
+    }
+    if (mongoOptions.credentials) {
+        const isGssapi = mongoOptions.credentials.mechanism === providers_1.AuthMechanism.MONGODB_GSSAPI;
+        const isX509 = mongoOptions.credentials.mechanism === providers_1.AuthMechanism.MONGODB_X509;
+        const isAws = mongoOptions.credentials.mechanism === providers_1.AuthMechanism.MONGODB_AWS;
+        const isOidc = mongoOptions.credentials.mechanism === providers_1.AuthMechanism.MONGODB_OIDC;
+        if ((isGssapi || isX509) &&
+            allProvidedOptions.has('authSource') &&
+            mongoOptions.credentials.source !== '$external') {
+            // If authSource was explicitly given and its incorrect, we error
+            throw new error_1.MongoParseError(`authMechanism ${mongoOptions.credentials.mechanism} requires an authSource of '$external'`);
+        }
+        if (!(isGssapi || isX509 || isAws || isOidc) &&
+            mongoOptions.dbName &&
+            !allProvidedOptions.has('authSource')) {
+            // inherit the dbName unless GSSAPI or X509, then silently ignore dbName
+            // and there was no specific authSource given
+            mongoOptions.credentials = mongo_credentials_1.MongoCredentials.merge(mongoOptions.credentials, {
+                source: mongoOptions.dbName
+            });
+        }
+        if (isAws && mongoOptions.credentials.username && !mongoOptions.credentials.password) {
+            throw new error_1.MongoMissingCredentialsError(`When using ${mongoOptions.credentials.mechanism} password must be set when a username is specified`);
+        }
+        mongoOptions.credentials.validate();
+        // Check if the only auth related option provided was authSource, if so we can remove credentials
+        if (mongoOptions.credentials.password === '' &&
+            mongoOptions.credentials.username === '' &&
+            mongoOptions.credentials.mechanism === providers_1.AuthMechanism.MONGODB_DEFAULT &&
+            Object.keys(mongoOptions.credentials.mechanismProperties).length === 0) {
+            delete mongoOptions.credentials;
+        }
+    }
+    if (!mongoOptions.dbName) {
+        // dbName default is applied here because of the credential validation above
+        mongoOptions.dbName = 'test';
+    }
+    validateLoadBalancedOptions(hosts, mongoOptions, isSRV);
+    if (mongoClient && mongoOptions.autoEncryption) {
+        encrypter_1.Encrypter.checkForMongoCrypt();
+        mongoOptions.encrypter = new encrypter_1.Encrypter(mongoClient, uri, options);
+        mongoOptions.autoEncrypter = mongoOptions.encrypter.autoEncrypter;
+    }
+    // Potential SRV Overrides and SRV connection string validations
+    mongoOptions.userSpecifiedAuthSource =
+        objectOptions.has('authSource') || urlOptions.has('authSource');
+    mongoOptions.userSpecifiedReplicaSet =
+        objectOptions.has('replicaSet') || urlOptions.has('replicaSet');
+    if (isSRV) {
+        // SRV Record is resolved upon connecting
+        mongoOptions.srvHost = hosts[0];
+        if (mongoOptions.directConnection) {
+            throw new error_1.MongoAPIError('SRV URI does not support directConnection');
+        }
+        if (mongoOptions.srvMaxHosts > 0 && typeof mongoOptions.replicaSet === 'string') {
+            throw new error_1.MongoParseError('Cannot use srvMaxHosts option with replicaSet');
+        }
+        // SRV turns on TLS by default, but users can override and turn it off
+        const noUserSpecifiedTLS = !objectOptions.has('tls') && !urlOptions.has('tls');
+        const noUserSpecifiedSSL = !objectOptions.has('ssl') && !urlOptions.has('ssl');
+        if (noUserSpecifiedTLS && noUserSpecifiedSSL) {
+            mongoOptions.tls = true;
+        }
+    }
+    else {
+        const userSpecifiedSrvOptions = urlOptions.has('srvMaxHosts') ||
+            objectOptions.has('srvMaxHosts') ||
+            urlOptions.has('srvServiceName') ||
+            objectOptions.has('srvServiceName');
+        if (userSpecifiedSrvOptions) {
+            throw new error_1.MongoParseError('Cannot use srvMaxHosts or srvServiceName with a non-srv connection string');
+        }
+    }
+    if (mongoOptions.directConnection && mongoOptions.hosts.length !== 1) {
+        throw new error_1.MongoParseError('directConnection option requires exactly one host');
+    }
+    if (!mongoOptions.proxyHost &&
+        (mongoOptions.proxyPort || mongoOptions.proxyUsername || mongoOptions.proxyPassword)) {
+        throw new error_1.MongoParseError('Must specify proxyHost if other proxy options are passed');
+    }
+    if ((mongoOptions.proxyUsername && !mongoOptions.proxyPassword) ||
+        (!mongoOptions.proxyUsername && mongoOptions.proxyPassword)) {
+        throw new error_1.MongoParseError('Can only specify both of proxy username/password or neither');
+    }
+    const proxyOptions = ['proxyHost', 'proxyPort', 'proxyUsername', 'proxyPassword'].map(key => urlOptions.get(key) ?? []);
+    if (proxyOptions.some(options => options.length > 1)) {
+        throw new error_1.MongoParseError('Proxy options cannot be specified multiple times in the connection string');
+    }
+    const loggerFeatureFlag = Symbol.for('@@mdb.enableMongoLogger');
+    mongoOptions[loggerFeatureFlag] = mongoOptions[loggerFeatureFlag] ?? false;
+    let loggerEnvOptions = {};
+    let loggerClientOptions = {};
+    if (mongoOptions[loggerFeatureFlag]) {
+        loggerEnvOptions = {
+            MONGODB_LOG_COMMAND: process.env.MONGODB_LOG_COMMAND,
+            MONGODB_LOG_TOPOLOGY: process.env.MONGODB_LOG_TOPOLOGY,
+            MONGODB_LOG_SERVER_SELECTION: process.env.MONGODB_LOG_SERVER_SELECTION,
+            MONGODB_LOG_CONNECTION: process.env.MONGODB_LOG_CONNECTION,
+            MONGODB_LOG_CLIENT: process.env.MONGODB_LOG_CLIENT,
+            MONGODB_LOG_ALL: process.env.MONGODB_LOG_ALL,
+            MONGODB_LOG_MAX_DOCUMENT_LENGTH: process.env.MONGODB_LOG_MAX_DOCUMENT_LENGTH,
+            MONGODB_LOG_PATH: process.env.MONGODB_LOG_PATH,
+            ...mongoOptions[Symbol.for('@@mdb.internalLoggerConfig')]
+        };
+        loggerClientOptions = {
+            mongodbLogPath: mongoOptions.mongodbLogPath,
+            mongodbLogComponentSeverities: mongoOptions.mongodbLogComponentSeverities,
+            mongodbLogMaxDocumentLength: mongoOptions.mongodbLogMaxDocumentLength
+        };
+    }
+    mongoOptions.mongoLoggerOptions = mongo_logger_1.MongoLogger.resolveOptions(loggerEnvOptions, loggerClientOptions);
+    mongoOptions.metadata = (0, client_metadata_1.makeClientMetadata)(mongoOptions);
+    mongoOptions.extendedMetadata = (0, client_metadata_1.addContainerMetadata)(mongoOptions.metadata).then(undefined, utils_1.squashError); // rejections will be handled later
+    return mongoOptions;
+}
+/**
+ * #### Throws if LB mode is true:
+ * - hosts contains more than one host
+ * - there is a replicaSet name set
+ * - directConnection is set
+ * - if srvMaxHosts is used when an srv connection string is passed in
+ *
+ * @throws MongoParseError
+ */
+function validateLoadBalancedOptions(hosts, mongoOptions, isSrv) {
+    if (mongoOptions.loadBalanced) {
+        if (hosts.length > 1) {
+            throw new error_1.MongoParseError(LB_SINGLE_HOST_ERROR);
+        }
+        if (mongoOptions.replicaSet) {
+            throw new error_1.MongoParseError(LB_REPLICA_SET_ERROR);
+        }
+        if (mongoOptions.directConnection) {
+            throw new error_1.MongoParseError(LB_DIRECT_CONNECTION_ERROR);
+        }
+        if (isSrv && mongoOptions.srvMaxHosts > 0) {
+            throw new error_1.MongoParseError('Cannot limit srv hosts with loadBalanced enabled');
+        }
+    }
+    return;
+}
+function setOption(mongoOptions, key, descriptor, values) {
+    const { target, type, transform } = descriptor;
+    const name = target ?? key;
+    switch (type) {
+        case 'boolean':
+            mongoOptions[name] = getBoolean(name, values[0]);
+            break;
+        case 'int':
+            mongoOptions[name] = getIntFromOptions(name, values[0]);
+            break;
+        case 'uint':
+            mongoOptions[name] = getUIntFromOptions(name, values[0]);
+            break;
+        case 'string':
+            if (values[0] == null) {
+                break;
+            }
+            mongoOptions[name] = String(values[0]);
+            break;
+        case 'record':
+            if (!(0, utils_1.isRecord)(values[0])) {
+                throw new error_1.MongoParseError(`${name} must be an object`);
+            }
+            mongoOptions[name] = values[0];
+            break;
+        case 'any':
+            mongoOptions[name] = values[0];
+            break;
+        default: {
+            if (!transform) {
+                throw new error_1.MongoParseError('Descriptors missing a type must define a transform');
+            }
+            const transformValue = transform({ name, options: mongoOptions, values });
+            mongoOptions[name] = transformValue;
+            break;
+        }
+    }
+}
+exports.OPTIONS = {
+    appName: {
+        type: 'string'
+    },
+    auth: {
+        target: 'credentials',
+        transform({ name, options, values: [value] }) {
+            if (!(0, utils_1.isRecord)(value, ['username', 'password'])) {
+                throw new error_1.MongoParseError(`${name} must be an object with 'username' and 'password' properties`);
+            }
+            return mongo_credentials_1.MongoCredentials.merge(options.credentials, {
+                username: value.username,
+                password: value.password
+            });
+        }
+    },
+    authMechanism: {
+        target: 'credentials',
+        transform({ options, values: [value] }) {
+            const mechanisms = Object.values(providers_1.AuthMechanism);
+            const [mechanism] = mechanisms.filter(m => m.match(RegExp(String.raw `\b${value}\b`, 'i')));
+            if (!mechanism) {
+                throw new error_1.MongoParseError(`authMechanism one of ${mechanisms}, got ${value}`);
+            }
+            let source = options.credentials?.source;
+            if (mechanism === providers_1.AuthMechanism.MONGODB_PLAIN ||
+                providers_1.AUTH_MECHS_AUTH_SRC_EXTERNAL.has(mechanism)) {
+                // some mechanisms have '$external' as the Auth Source
+                source = '$external';
+            }
+            let password = options.credentials?.password;
+            if (mechanism === providers_1.AuthMechanism.MONGODB_X509 && password === '') {
+                password = undefined;
+            }
+            return mongo_credentials_1.MongoCredentials.merge(options.credentials, {
+                mechanism,
+                source,
+                password
+            });
+        }
+    },
+    // Note that if the authMechanismProperties contain a TOKEN_RESOURCE that has a
+    // comma in it, it MUST be supplied as a MongoClient option instead of in the
+    // connection string.
+    authMechanismProperties: {
+        target: 'credentials',
+        transform({ options, values }) {
+            // We can have a combination of options passed in the URI and options passed
+            // as an object to the MongoClient. So we must transform the string options
+            // as well as merge them together with a potentially provided object.
+            let mechanismProperties = Object.create(null);
+            for (const optionValue of values) {
+                if (typeof optionValue === 'string') {
+                    for (const [key, value] of entriesFromString(optionValue)) {
+                        try {
+                            mechanismProperties[key] = getBoolean(key, value);
+                        }
+                        catch {
+                            mechanismProperties[key] = value;
+                        }
+                    }
+                }
+                else {
+                    if (!(0, utils_1.isRecord)(optionValue)) {
+                        throw new error_1.MongoParseError('AuthMechanismProperties must be an object');
+                    }
+                    mechanismProperties = { ...optionValue };
+                }
+            }
+            return mongo_credentials_1.MongoCredentials.merge(options.credentials, {
+                mechanismProperties
+            });
+        }
+    },
+    authSource: {
+        target: 'credentials',
+        transform({ options, values: [value] }) {
+            const source = String(value);
+            return mongo_credentials_1.MongoCredentials.merge(options.credentials, { source });
+        }
+    },
+    autoEncryption: {
+        type: 'record'
+    },
+    autoSelectFamily: {
+        type: 'boolean',
+        default: true
+    },
+    autoSelectFamilyAttemptTimeout: {
+        type: 'uint'
+    },
+    bsonRegExp: {
+        type: 'boolean'
+    },
+    serverApi: {
+        target: 'serverApi',
+        transform({ values: [version] }) {
+            const serverApiToValidate = typeof version === 'string' ? { version } : version;
+            const versionToValidate = serverApiToValidate && serverApiToValidate.version;
+            if (!versionToValidate) {
+                throw new error_1.MongoParseError(`Invalid \`serverApi\` property; must specify a version from the following enum: ["${Object.values(mongo_client_1.ServerApiVersion).join('", "')}"]`);
+            }
+            if (!Object.values(mongo_client_1.ServerApiVersion).some(v => v === versionToValidate)) {
+                throw new error_1.MongoParseError(`Invalid server API version=${versionToValidate}; must be in the following enum: ["${Object.values(mongo_client_1.ServerApiVersion).join('", "')}"]`);
+            }
+            return serverApiToValidate;
+        }
+    },
+    checkKeys: {
+        type: 'boolean'
+    },
+    compressors: {
+        default: 'none',
+        target: 'compressors',
+        transform({ values }) {
+            const compressionList = new Set();
+            for (const compVal of values) {
+                const compValArray = typeof compVal === 'string' ? compVal.split(',') : compVal;
+                if (!Array.isArray(compValArray)) {
+                    throw new error_1.MongoInvalidArgumentError('compressors must be an array or a comma-delimited list of strings');
+                }
+                for (const c of compValArray) {
+                    if (Object.keys(compression_1.Compressor).includes(String(c))) {
+                        compressionList.add(String(c));
+                    }
+                    else {
+                        throw new error_1.MongoInvalidArgumentError(`${c} is not a valid compression mechanism. Must be one of: ${Object.keys(compression_1.Compressor)}.`);
+                    }
+                }
+            }
+            return [...compressionList];
+        }
+    },
+    connectTimeoutMS: {
+        default: 30000,
+        type: 'uint'
+    },
+    dbName: {
+        type: 'string'
+    },
+    directConnection: {
+        default: false,
+        type: 'boolean'
+    },
+    driverInfo: {
+        default: {},
+        type: 'record'
+    },
+    enableUtf8Validation: { type: 'boolean', default: true },
+    family: {
+        transform({ name, values: [value] }) {
+            const transformValue = getIntFromOptions(name, value);
+            if (transformValue === 4 || transformValue === 6) {
+                return transformValue;
+            }
+            throw new error_1.MongoParseError(`Option 'family' must be 4 or 6 got ${transformValue}.`);
+        }
+    },
+    fieldsAsRaw: {
+        type: 'record'
+    },
+    forceServerObjectId: {
+        default: false,
+        type: 'boolean'
+    },
+    fsync: {
+        deprecated: 'Please use journal instead',
+        target: 'writeConcern',
+        transform({ name, options, values: [value] }) {
+            const wc = write_concern_1.WriteConcern.fromOptions({
+                writeConcern: {
+                    ...options.writeConcern,
+                    fsync: getBoolean(name, value)
+                }
+            });
+            if (!wc)
+                throw new error_1.MongoParseError(`Unable to make a writeConcern from fsync=${value}`);
+            return wc;
+        }
+    },
+    heartbeatFrequencyMS: {
+        default: 10000,
+        type: 'uint'
+    },
+    ignoreUndefined: {
+        type: 'boolean'
+    },
+    j: {
+        deprecated: 'Please use journal instead',
+        target: 'writeConcern',
+        transform({ name, options, values: [value] }) {
+            const wc = write_concern_1.WriteConcern.fromOptions({
+                writeConcern: {
+                    ...options.writeConcern,
+                    journal: getBoolean(name, value)
+                }
+            });
+            if (!wc)
+                throw new error_1.MongoParseError(`Unable to make a writeConcern from journal=${value}`);
+            return wc;
+        }
+    },
+    journal: {
+        target: 'writeConcern',
+        transform({ name, options, values: [value] }) {
+            const wc = write_concern_1.WriteConcern.fromOptions({
+                writeConcern: {
+                    ...options.writeConcern,
+                    journal: getBoolean(name, value)
+                }
+            });
+            if (!wc)
+                throw new error_1.MongoParseError(`Unable to make a writeConcern from journal=${value}`);
+            return wc;
+        }
+    },
+    loadBalanced: {
+        default: false,
+        type: 'boolean'
+    },
+    localThresholdMS: {
+        default: 15,
+        type: 'uint'
+    },
+    maxConnecting: {
+        default: 2,
+        transform({ name, values: [value] }) {
+            const maxConnecting = getUIntFromOptions(name, value);
+            if (maxConnecting === 0) {
+                throw new error_1.MongoInvalidArgumentError('maxConnecting must be > 0 if specified');
+            }
+            return maxConnecting;
+        }
+    },
+    maxIdleTimeMS: {
+        default: 0,
+        type: 'uint'
+    },
+    maxPoolSize: {
+        default: 100,
+        type: 'uint'
+    },
+    maxStalenessSeconds: {
+        target: 'readPreference',
+        transform({ name, options, values: [value] }) {
+            const maxStalenessSeconds = getUIntFromOptions(name, value);
+            if (options.readPreference) {
+                return read_preference_1.ReadPreference.fromOptions({
+                    readPreference: { ...options.readPreference, maxStalenessSeconds }
+                });
+            }
+            else {
+                return new read_preference_1.ReadPreference('secondary', undefined, { maxStalenessSeconds });
+            }
+        }
+    },
+    minInternalBufferSize: {
+        type: 'uint'
+    },
+    minPoolSize: {
+        default: 0,
+        type: 'uint'
+    },
+    minHeartbeatFrequencyMS: {
+        default: 500,
+        type: 'uint'
+    },
+    monitorCommands: {
+        default: false,
+        type: 'boolean'
+    },
+    name: {
+        target: 'driverInfo',
+        transform({ values: [value], options }) {
+            return { ...options.driverInfo, name: String(value) };
+        }
+    },
+    noDelay: {
+        default: true,
+        type: 'boolean'
+    },
+    pkFactory: {
+        default: utils_1.DEFAULT_PK_FACTORY,
+        transform({ values: [value] }) {
+            if ((0, utils_1.isRecord)(value, ['createPk']) && typeof value.createPk === 'function') {
+                return value;
+            }
+            throw new error_1.MongoParseError(`Option pkFactory must be an object with a createPk function, got ${value}`);
+        }
+    },
+    promoteBuffers: {
+        type: 'boolean'
+    },
+    promoteLongs: {
+        type: 'boolean'
+    },
+    promoteValues: {
+        type: 'boolean'
+    },
+    useBigInt64: {
+        type: 'boolean'
+    },
+    proxyHost: {
+        type: 'string'
+    },
+    proxyPassword: {
+        type: 'string'
+    },
+    proxyPort: {
+        type: 'uint'
+    },
+    proxyUsername: {
+        type: 'string'
+    },
+    raw: {
+        default: false,
+        type: 'boolean'
+    },
+    readConcern: {
+        transform({ values: [value], options }) {
+            if (value instanceof read_concern_1.ReadConcern || (0, utils_1.isRecord)(value, ['level'])) {
+                return read_concern_1.ReadConcern.fromOptions({ ...options.readConcern, ...value });
+            }
+            throw new error_1.MongoParseError(`ReadConcern must be an object, got ${JSON.stringify(value)}`);
+        }
+    },
+    readConcernLevel: {
+        target: 'readConcern',
+        transform({ values: [level], options }) {
+            return read_concern_1.ReadConcern.fromOptions({
+                ...options.readConcern,
+                level: level
+            });
+        }
+    },
+    readPreference: {
+        default: read_preference_1.ReadPreference.primary,
+        transform({ values: [value], options }) {
+            if (value instanceof read_preference_1.ReadPreference) {
+                return read_preference_1.ReadPreference.fromOptions({
+                    readPreference: { ...options.readPreference, ...value },
+                    ...value
+                });
+            }
+            if ((0, utils_1.isRecord)(value, ['mode'])) {
+                const rp = read_preference_1.ReadPreference.fromOptions({
+                    readPreference: { ...options.readPreference, ...value },
+                    ...value
+                });
+                if (rp)
+                    return rp;
+                else
+                    throw new error_1.MongoParseError(`Cannot make read preference from ${JSON.stringify(value)}`);
+            }
+            if (typeof value === 'string') {
+                const rpOpts = {
+                    hedge: options.readPreference?.hedge,
+                    maxStalenessSeconds: options.readPreference?.maxStalenessSeconds
+                };
+                return new read_preference_1.ReadPreference(value, options.readPreference?.tags, rpOpts);
+            }
+            throw new error_1.MongoParseError(`Unknown ReadPreference value: ${value}`);
+        }
+    },
+    readPreferenceTags: {
+        target: 'readPreference',
+        transform({ values, options }) {
+            const tags = Array.isArray(values[0])
+                ? values[0]
+                : values;
+            const readPreferenceTags = [];
+            for (const tag of tags) {
+                const readPreferenceTag = Object.create(null);
+                if (typeof tag === 'string') {
+                    for (const [k, v] of entriesFromString(tag)) {
+                        readPreferenceTag[k] = v;
+                    }
+                }
+                if ((0, utils_1.isRecord)(tag)) {
+                    for (const [k, v] of Object.entries(tag)) {
+                        readPreferenceTag[k] = v;
+                    }
+                }
+                readPreferenceTags.push(readPreferenceTag);
+            }
+            return read_preference_1.ReadPreference.fromOptions({
+                readPreference: options.readPreference,
+                readPreferenceTags
+            });
+        }
+    },
+    replicaSet: {
+        type: 'string'
+    },
+    retryReads: {
+        default: true,
+        type: 'boolean'
+    },
+    retryWrites: {
+        default: true,
+        type: 'boolean'
+    },
+    serializeFunctions: {
+        type: 'boolean'
+    },
+    serverMonitoringMode: {
+        default: 'auto',
+        transform({ values: [value] }) {
+            if (!Object.values(monitor_1.ServerMonitoringMode).includes(value)) {
+                throw new error_1.MongoParseError('serverMonitoringMode must be one of `auto`, `poll`, or `stream`');
+            }
+            return value;
+        }
+    },
+    serverSelectionTimeoutMS: {
+        default: 30000,
+        type: 'uint'
+    },
+    servername: {
+        type: 'string'
+    },
+    socketTimeoutMS: {
+        // TODO(NODE-6491): deprecated: 'Please use timeoutMS instead',
+        default: 0,
+        type: 'uint'
+    },
+    srvMaxHosts: {
+        type: 'uint',
+        default: 0
+    },
+    srvServiceName: {
+        type: 'string',
+        default: 'mongodb'
+    },
+    ssl: {
+        target: 'tls',
+        type: 'boolean'
+    },
+    timeoutMS: {
+        type: 'uint'
+    },
+    tls: {
+        type: 'boolean'
+    },
+    tlsAllowInvalidCertificates: {
+        target: 'rejectUnauthorized',
+        transform({ name, values: [value] }) {
+            // allowInvalidCertificates is the inverse of rejectUnauthorized
+            return !getBoolean(name, value);
+        }
+    },
+    tlsAllowInvalidHostnames: {
+        target: 'checkServerIdentity',
+        transform({ name, values: [value] }) {
+            // tlsAllowInvalidHostnames means setting the checkServerIdentity function to a noop
+            return getBoolean(name, value) ? () => undefined : undefined;
+        }
+    },
+    tlsCAFile: {
+        type: 'string'
+    },
+    tlsCRLFile: {
+        type: 'string'
+    },
+    tlsCertificateKeyFile: {
+        type: 'string'
+    },
+    tlsCertificateKeyFilePassword: {
+        target: 'passphrase',
+        type: 'any'
+    },
+    tlsInsecure: {
+        transform({ name, options, values: [value] }) {
+            const tlsInsecure = getBoolean(name, value);
+            if (tlsInsecure) {
+                options.checkServerIdentity = () => undefined;
+                options.rejectUnauthorized = false;
+            }
+            else {
+                options.checkServerIdentity = options.tlsAllowInvalidHostnames
+                    ? () => undefined
+                    : undefined;
+                options.rejectUnauthorized = options.tlsAllowInvalidCertificates ? false : true;
+            }
+            return tlsInsecure;
+        }
+    },
+    w: {
+        target: 'writeConcern',
+        transform({ values: [value], options }) {
+            return write_concern_1.WriteConcern.fromOptions({ writeConcern: { ...options.writeConcern, w: value } });
+        }
+    },
+    waitQueueTimeoutMS: {
+        // TODO(NODE-6491): deprecated: 'Please use timeoutMS instead',
+        default: 0,
+        type: 'uint'
+    },
+    writeConcern: {
+        target: 'writeConcern',
+        transform({ values: [value], options }) {
+            if ((0, utils_1.isRecord)(value) || value instanceof write_concern_1.WriteConcern) {
+                return write_concern_1.WriteConcern.fromOptions({
+                    writeConcern: {
+                        ...options.writeConcern,
+                        ...value
+                    }
+                });
+            }
+            else if (value === 'majority' || typeof value === 'number') {
+                return write_concern_1.WriteConcern.fromOptions({
+                    writeConcern: {
+                        ...options.writeConcern,
+                        w: value
+                    }
+                });
+            }
+            throw new error_1.MongoParseError(`Invalid WriteConcern cannot parse: ${JSON.stringify(value)}`);
+        }
+    },
+    wtimeout: {
+        deprecated: 'Please use wtimeoutMS instead',
+        target: 'writeConcern',
+        transform({ values: [value], options }) {
+            const wc = write_concern_1.WriteConcern.fromOptions({
+                writeConcern: {
+                    ...options.writeConcern,
+                    wtimeout: getUIntFromOptions('wtimeout', value)
+                }
+            });
+            if (wc)
+                return wc;
+            throw new error_1.MongoParseError(`Cannot make WriteConcern from wtimeout`);
+        }
+    },
+    wtimeoutMS: {
+        target: 'writeConcern',
+        transform({ values: [value], options }) {
+            const wc = write_concern_1.WriteConcern.fromOptions({
+                writeConcern: {
+                    ...options.writeConcern,
+                    wtimeoutMS: getUIntFromOptions('wtimeoutMS', value)
+                }
+            });
+            if (wc)
+                return wc;
+            throw new error_1.MongoParseError(`Cannot make WriteConcern from wtimeout`);
+        }
+    },
+    zlibCompressionLevel: {
+        default: 0,
+        type: 'int'
+    },
+    // Custom types for modifying core behavior
+    connectionType: { type: 'any' },
+    srvPoller: { type: 'any' },
+    // Accepted Node.js Options
+    allowPartialTrustChain: { type: 'any' },
+    minDHSize: { type: 'any' },
+    pskCallback: { type: 'any' },
+    secureContext: { type: 'any' },
+    enableTrace: { type: 'any' },
+    requestCert: { type: 'any' },
+    rejectUnauthorized: { type: 'any' },
+    checkServerIdentity: { type: 'any' },
+    ALPNProtocols: { type: 'any' },
+    SNICallback: { type: 'any' },
+    session: { type: 'any' },
+    requestOCSP: { type: 'any' },
+    localAddress: { type: 'any' },
+    localPort: { type: 'any' },
+    hints: { type: 'any' },
+    lookup: { type: 'any' },
+    ca: { type: 'any' },
+    cert: { type: 'any' },
+    ciphers: { type: 'any' },
+    crl: { type: 'any' },
+    ecdhCurve: { type: 'any' },
+    key: { type: 'any' },
+    passphrase: { type: 'any' },
+    pfx: { type: 'any' },
+    secureProtocol: { type: 'any' },
+    index: { type: 'any' },
+    // Legacy options from v3 era
+    useNewUrlParser: {
+        type: 'boolean',
+        deprecated: 'useNewUrlParser has no effect since Node.js Driver version 4.0.0 and will be removed in the next major version'
+    },
+    useUnifiedTopology: {
+        type: 'boolean',
+        deprecated: 'useUnifiedTopology has no effect since Node.js Driver version 4.0.0 and will be removed in the next major version'
+    },
+    // MongoLogger
+    /**
+     * @internal
+     * TODO: NODE-5671 - remove internal flag
+     */
+    mongodbLogPath: {
+        transform({ values: [value] }) {
+            if (!((typeof value === 'string' && ['stderr', 'stdout'].includes(value)) ||
+                (value &&
+                    typeof value === 'object' &&
+                    'write' in value &&
+                    typeof value.write === 'function'))) {
+                throw new error_1.MongoAPIError(`Option 'mongodbLogPath' must be of type 'stderr' | 'stdout' | MongoDBLogWritable`);
+            }
+            return value;
+        }
+    },
+    /**
+     * @internal
+     * TODO: NODE-5671 - remove internal flag
+     */
+    mongodbLogComponentSeverities: {
+        transform({ values: [value] }) {
+            if (typeof value !== 'object' || !value) {
+                throw new error_1.MongoAPIError(`Option 'mongodbLogComponentSeverities' must be a non-null object`);
+            }
+            for (const [k, v] of Object.entries(value)) {
+                if (typeof v !== 'string' || typeof k !== 'string') {
+                    throw new error_1.MongoAPIError(`User input for option 'mongodbLogComponentSeverities' object cannot include a non-string key or value`);
+                }
+                if (!Object.values(mongo_logger_1.MongoLoggableComponent).some(val => val === k) && k !== 'default') {
+                    throw new error_1.MongoAPIError(`User input for option 'mongodbLogComponentSeverities' contains invalid key: ${k}`);
+                }
+                if (!Object.values(mongo_logger_1.SeverityLevel).some(val => val === v)) {
+                    throw new error_1.MongoAPIError(`Option 'mongodbLogComponentSeverities' does not support ${v} as a value for ${k}`);
+                }
+            }
+            return value;
+        }
+    },
+    /**
+     * @internal
+     * TODO: NODE-5671 - remove internal flag
+     */
+    mongodbLogMaxDocumentLength: { type: 'uint' }
+};
+exports.DEFAULT_OPTIONS = new CaseInsensitiveMap(Object.entries(exports.OPTIONS)
+    .filter(([, descriptor]) => descriptor.default != null)
+    .map(([k, d]) => [k, d.default]));
+/**
+ * Set of permitted feature flags
+ * @internal
+ */
+exports.FEATURE_FLAGS = new Set([
+    Symbol.for('@@mdb.skipPingOnConnect'),
+    Symbol.for('@@mdb.enableMongoLogger'),
+    Symbol.for('@@mdb.internalLoggerConfig')
+]);
+//# sourceMappingURL=connection_string.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/connection_string.js.map b/backend/node_modules/mongodb/lib/connection_string.js.map
new file mode 100644
index 0000000..ecade1c
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/connection_string.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/constants.js b/backend/node_modules/mongodb/lib/constants.js
new file mode 100644
index 0000000..2f2151c
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/constants.js
@@ -0,0 +1,171 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.END = exports.CHANGE = exports.INIT = exports.MORE = exports.RESPONSE = exports.SERVER_HEARTBEAT_FAILED = exports.SERVER_HEARTBEAT_SUCCEEDED = exports.SERVER_HEARTBEAT_STARTED = exports.COMMAND_FAILED = exports.COMMAND_SUCCEEDED = exports.COMMAND_STARTED = exports.CLUSTER_TIME_RECEIVED = exports.CONNECTION_CHECKED_IN = exports.CONNECTION_CHECKED_OUT = exports.CONNECTION_CHECK_OUT_FAILED = exports.CONNECTION_CHECK_OUT_STARTED = exports.CONNECTION_CLOSED = exports.CONNECTION_READY = exports.CONNECTION_CREATED = exports.CONNECTION_POOL_READY = exports.CONNECTION_POOL_CLEARED = exports.CONNECTION_POOL_CLOSED = exports.CONNECTION_POOL_CREATED = exports.WAITING_FOR_SUITABLE_SERVER = exports.SERVER_SELECTION_SUCCEEDED = exports.SERVER_SELECTION_FAILED = exports.SERVER_SELECTION_STARTED = exports.TOPOLOGY_DESCRIPTION_CHANGED = exports.TOPOLOGY_CLOSED = exports.TOPOLOGY_OPENING = exports.SERVER_DESCRIPTION_CHANGED = exports.SERVER_CLOSED = exports.SERVER_OPENING = exports.DESCRIPTION_RECEIVED = exports.UNPINNED = exports.PINNED = exports.MESSAGE = exports.ENDED = exports.CLOSED = exports.CONNECT = exports.OPEN = exports.CLOSE = exports.TIMEOUT = exports.ERROR = exports.SYSTEM_JS_COLLECTION = exports.SYSTEM_COMMAND_COLLECTION = exports.SYSTEM_USER_COLLECTION = exports.SYSTEM_PROFILE_COLLECTION = exports.SYSTEM_INDEX_COLLECTION = exports.SYSTEM_NAMESPACE_COLLECTION = void 0;
+exports.kDecoratedKeys = exports.kDecorateResult = exports.LEGACY_HELLO_COMMAND_CAMEL_CASE = exports.LEGACY_HELLO_COMMAND = exports.MONGO_CLIENT_EVENTS = exports.LOCAL_SERVER_EVENTS = exports.SERVER_RELAY_EVENTS = exports.APM_EVENTS = exports.TOPOLOGY_EVENTS = exports.CMAP_EVENTS = exports.HEARTBEAT_EVENTS = exports.RESUME_TOKEN_CHANGED = void 0;
+/* eslint-disable @typescript-eslint/no-unnecessary-type-assertion */
+exports.SYSTEM_NAMESPACE_COLLECTION = 'system.namespaces';
+exports.SYSTEM_INDEX_COLLECTION = 'system.indexes';
+exports.SYSTEM_PROFILE_COLLECTION = 'system.profile';
+exports.SYSTEM_USER_COLLECTION = 'system.users';
+exports.SYSTEM_COMMAND_COLLECTION = '$cmd';
+exports.SYSTEM_JS_COLLECTION = 'system.js';
+// events
+exports.ERROR = 'error';
+exports.TIMEOUT = 'timeout';
+exports.CLOSE = 'close';
+exports.OPEN = 'open';
+exports.CONNECT = 'connect';
+exports.CLOSED = 'closed';
+exports.ENDED = 'ended';
+exports.MESSAGE = 'message';
+exports.PINNED = 'pinned';
+exports.UNPINNED = 'unpinned';
+exports.DESCRIPTION_RECEIVED = 'descriptionReceived';
+/** @internal */
+exports.SERVER_OPENING = 'serverOpening';
+/** @internal */
+exports.SERVER_CLOSED = 'serverClosed';
+/** @internal */
+exports.SERVER_DESCRIPTION_CHANGED = 'serverDescriptionChanged';
+/** @internal */
+exports.TOPOLOGY_OPENING = 'topologyOpening';
+/** @internal */
+exports.TOPOLOGY_CLOSED = 'topologyClosed';
+/** @internal */
+exports.TOPOLOGY_DESCRIPTION_CHANGED = 'topologyDescriptionChanged';
+/** @internal */
+exports.SERVER_SELECTION_STARTED = 'serverSelectionStarted';
+/** @internal */
+exports.SERVER_SELECTION_FAILED = 'serverSelectionFailed';
+/** @internal */
+exports.SERVER_SELECTION_SUCCEEDED = 'serverSelectionSucceeded';
+/** @internal */
+exports.WAITING_FOR_SUITABLE_SERVER = 'waitingForSuitableServer';
+/** @internal */
+exports.CONNECTION_POOL_CREATED = 'connectionPoolCreated';
+/** @internal */
+exports.CONNECTION_POOL_CLOSED = 'connectionPoolClosed';
+/** @internal */
+exports.CONNECTION_POOL_CLEARED = 'connectionPoolCleared';
+/** @internal */
+exports.CONNECTION_POOL_READY = 'connectionPoolReady';
+/** @internal */
+exports.CONNECTION_CREATED = 'connectionCreated';
+/** @internal */
+exports.CONNECTION_READY = 'connectionReady';
+/** @internal */
+exports.CONNECTION_CLOSED = 'connectionClosed';
+/** @internal */
+exports.CONNECTION_CHECK_OUT_STARTED = 'connectionCheckOutStarted';
+/** @internal */
+exports.CONNECTION_CHECK_OUT_FAILED = 'connectionCheckOutFailed';
+/** @internal */
+exports.CONNECTION_CHECKED_OUT = 'connectionCheckedOut';
+/** @internal */
+exports.CONNECTION_CHECKED_IN = 'connectionCheckedIn';
+exports.CLUSTER_TIME_RECEIVED = 'clusterTimeReceived';
+/** @internal */
+exports.COMMAND_STARTED = 'commandStarted';
+/** @internal */
+exports.COMMAND_SUCCEEDED = 'commandSucceeded';
+/** @internal */
+exports.COMMAND_FAILED = 'commandFailed';
+/** @internal */
+exports.SERVER_HEARTBEAT_STARTED = 'serverHeartbeatStarted';
+/** @internal */
+exports.SERVER_HEARTBEAT_SUCCEEDED = 'serverHeartbeatSucceeded';
+/** @internal */
+exports.SERVER_HEARTBEAT_FAILED = 'serverHeartbeatFailed';
+exports.RESPONSE = 'response';
+exports.MORE = 'more';
+exports.INIT = 'init';
+exports.CHANGE = 'change';
+exports.END = 'end';
+exports.RESUME_TOKEN_CHANGED = 'resumeTokenChanged';
+/** @public */
+exports.HEARTBEAT_EVENTS = Object.freeze([
+    exports.SERVER_HEARTBEAT_STARTED,
+    exports.SERVER_HEARTBEAT_SUCCEEDED,
+    exports.SERVER_HEARTBEAT_FAILED
+]);
+/** @public */
+exports.CMAP_EVENTS = Object.freeze([
+    exports.CONNECTION_POOL_CREATED,
+    exports.CONNECTION_POOL_READY,
+    exports.CONNECTION_POOL_CLEARED,
+    exports.CONNECTION_POOL_CLOSED,
+    exports.CONNECTION_CREATED,
+    exports.CONNECTION_READY,
+    exports.CONNECTION_CLOSED,
+    exports.CONNECTION_CHECK_OUT_STARTED,
+    exports.CONNECTION_CHECK_OUT_FAILED,
+    exports.CONNECTION_CHECKED_OUT,
+    exports.CONNECTION_CHECKED_IN
+]);
+/** @public */
+exports.TOPOLOGY_EVENTS = Object.freeze([
+    exports.SERVER_OPENING,
+    exports.SERVER_CLOSED,
+    exports.SERVER_DESCRIPTION_CHANGED,
+    exports.TOPOLOGY_OPENING,
+    exports.TOPOLOGY_CLOSED,
+    exports.TOPOLOGY_DESCRIPTION_CHANGED,
+    exports.ERROR,
+    exports.TIMEOUT,
+    exports.CLOSE
+]);
+/** @public */
+exports.APM_EVENTS = Object.freeze([
+    exports.COMMAND_STARTED,
+    exports.COMMAND_SUCCEEDED,
+    exports.COMMAND_FAILED
+]);
+/**
+ * All events that we relay to the `Topology`
+ * @internal
+ */
+exports.SERVER_RELAY_EVENTS = Object.freeze([
+    exports.SERVER_HEARTBEAT_STARTED,
+    exports.SERVER_HEARTBEAT_SUCCEEDED,
+    exports.SERVER_HEARTBEAT_FAILED,
+    exports.COMMAND_STARTED,
+    exports.COMMAND_SUCCEEDED,
+    exports.COMMAND_FAILED,
+    ...exports.CMAP_EVENTS
+]);
+/**
+ * All events we listen to from `Server` instances, but do not forward to the client
+ * @internal
+ */
+exports.LOCAL_SERVER_EVENTS = Object.freeze([
+    exports.CONNECT,
+    exports.DESCRIPTION_RECEIVED,
+    exports.CLOSED,
+    exports.ENDED
+]);
+/** @public */
+exports.MONGO_CLIENT_EVENTS = Object.freeze([
+    ...exports.CMAP_EVENTS,
+    ...exports.APM_EVENTS,
+    ...exports.TOPOLOGY_EVENTS,
+    ...exports.HEARTBEAT_EVENTS
+]);
+/**
+ * @internal
+ * The legacy hello command that was deprecated in MongoDB 5.0.
+ */
+exports.LEGACY_HELLO_COMMAND = 'ismaster';
+/**
+ * @internal
+ * The legacy hello command that was deprecated in MongoDB 5.0.
+ */
+exports.LEGACY_HELLO_COMMAND_CAMEL_CASE = 'isMaster';
+// Typescript errors if we index objects with `Symbol.for(...)`, so
+// to avoid TS errors we pull them out into variables.  Then we can type
+// the objects (and class) that we expect to see them on and prevent TS
+// errors.
+/** @internal */
+exports.kDecorateResult = Symbol.for('@@mdb.decorateDecryptionResult');
+/** @internal */
+exports.kDecoratedKeys = Symbol.for('@@mdb.decryptedKeys');
+//# sourceMappingURL=constants.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/constants.js.map b/backend/node_modules/mongodb/lib/constants.js.map
new file mode 100644
index 0000000..e8d07a5
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/constants.js.map
@@ -0,0 +1 @@
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diff --git a/backend/node_modules/mongodb/lib/cursor/abstract_cursor.js b/backend/node_modules/mongodb/lib/cursor/abstract_cursor.js
new file mode 100644
index 0000000..dd443e6
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cursor/abstract_cursor.js
@@ -0,0 +1,888 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.CursorTimeoutContext = exports.AbstractCursor = exports.CursorTimeoutMode = exports.CURSOR_FLAGS = void 0;
+const stream_1 = require("stream");
+const bson_1 = require("../bson");
+const error_1 = require("../error");
+const mongo_types_1 = require("../mongo_types");
+const execute_operation_1 = require("../operations/execute_operation");
+const get_more_1 = require("../operations/get_more");
+const kill_cursors_1 = require("../operations/kill_cursors");
+const read_concern_1 = require("../read_concern");
+const read_preference_1 = require("../read_preference");
+const resource_management_1 = require("../resource_management");
+const sessions_1 = require("../sessions");
+const timeout_1 = require("../timeout");
+const utils_1 = require("../utils");
+/** @public */
+exports.CURSOR_FLAGS = [
+    'tailable',
+    'oplogReplay',
+    'noCursorTimeout',
+    'awaitData',
+    'exhaust',
+    'partial'
+];
+/**
+ * @public
+ * @experimental
+ * Specifies how `timeoutMS` is applied to the cursor. Can be either `'cursorLifeTime'` or `'iteration'`
+ * When set to `'iteration'`, the deadline specified by `timeoutMS` applies to each call of
+ * `cursor.next()`.
+ * When set to `'cursorLifetime'`, the deadline applies to the life of the entire cursor.
+ *
+ * Depending on the type of cursor being used, this option has different default values.
+ * For non-tailable cursors, this value defaults to `'cursorLifetime'`
+ * For tailable cursors, this value defaults to `'iteration'` since tailable cursors, by
+ * definition can have an arbitrarily long lifetime.
+ *
+ * @example
+ * ```ts
+ * const cursor = collection.find({}, {timeoutMS: 100, timeoutMode: 'iteration'});
+ * for await (const doc of cursor) {
+ *  // process doc
+ *  // This will throw a timeout error if any of the iterator's `next()` calls takes more than 100ms, but
+ *  // will continue to iterate successfully otherwise, regardless of the number of batches.
+ * }
+ * ```
+ *
+ * @example
+ * ```ts
+ * const cursor = collection.find({}, { timeoutMS: 1000, timeoutMode: 'cursorLifetime' });
+ * const docs = await cursor.toArray(); // This entire line will throw a timeout error if all batches are not fetched and returned within 1000ms.
+ * ```
+ */
+exports.CursorTimeoutMode = Object.freeze({
+    ITERATION: 'iteration',
+    LIFETIME: 'cursorLifetime'
+});
+/** @public */
+class AbstractCursor extends mongo_types_1.TypedEventEmitter {
+    /** @internal */
+    constructor(client, namespace, options = {}) {
+        super();
+        /** @internal */
+        this.documents = null;
+        /** @internal */
+        this.hasEmittedClose = false;
+        if (!client.s.isMongoClient) {
+            throw new error_1.MongoRuntimeError('Cursor must be constructed with MongoClient');
+        }
+        this.cursorClient = client;
+        this.cursorNamespace = namespace;
+        this.cursorId = null;
+        this.initialized = false;
+        this.isClosed = false;
+        this.isKilled = false;
+        this.cursorOptions = {
+            readPreference: options.readPreference && options.readPreference instanceof read_preference_1.ReadPreference
+                ? options.readPreference
+                : read_preference_1.ReadPreference.primary,
+            ...(0, bson_1.pluckBSONSerializeOptions)(options),
+            timeoutMS: options?.timeoutContext?.csotEnabled()
+                ? options.timeoutContext.timeoutMS
+                : options.timeoutMS,
+            tailable: options.tailable,
+            awaitData: options.awaitData
+        };
+        if (this.cursorOptions.timeoutMS != null) {
+            if (options.timeoutMode == null) {
+                if (options.tailable) {
+                    if (options.awaitData) {
+                        if (options.maxAwaitTimeMS != null &&
+                            options.maxAwaitTimeMS >= this.cursorOptions.timeoutMS)
+                            throw new error_1.MongoInvalidArgumentError('Cannot specify maxAwaitTimeMS >= timeoutMS for a tailable awaitData cursor');
+                    }
+                    this.cursorOptions.timeoutMode = exports.CursorTimeoutMode.ITERATION;
+                }
+                else {
+                    this.cursorOptions.timeoutMode = exports.CursorTimeoutMode.LIFETIME;
+                }
+            }
+            else {
+                if (options.tailable && options.timeoutMode === exports.CursorTimeoutMode.LIFETIME) {
+                    throw new error_1.MongoInvalidArgumentError("Cannot set tailable cursor's timeoutMode to LIFETIME");
+                }
+                this.cursorOptions.timeoutMode = options.timeoutMode;
+            }
+        }
+        else {
+            if (options.timeoutMode != null)
+                throw new error_1.MongoInvalidArgumentError('Cannot set timeoutMode without setting timeoutMS');
+        }
+        // Set for initial command
+        this.cursorOptions.omitMaxTimeMS =
+            this.cursorOptions.timeoutMS != null &&
+                ((this.cursorOptions.timeoutMode === exports.CursorTimeoutMode.ITERATION &&
+                    !this.cursorOptions.tailable) ||
+                    (this.cursorOptions.tailable && !this.cursorOptions.awaitData));
+        const readConcern = read_concern_1.ReadConcern.fromOptions(options);
+        if (readConcern) {
+            this.cursorOptions.readConcern = readConcern;
+        }
+        if (typeof options.batchSize === 'number') {
+            this.cursorOptions.batchSize = options.batchSize;
+        }
+        // we check for undefined specifically here to allow falsy values
+        // eslint-disable-next-line no-restricted-syntax
+        if (options.comment !== undefined) {
+            this.cursorOptions.comment = options.comment;
+        }
+        if (typeof options.maxTimeMS === 'number') {
+            this.cursorOptions.maxTimeMS = options.maxTimeMS;
+        }
+        if (typeof options.maxAwaitTimeMS === 'number') {
+            this.cursorOptions.maxAwaitTimeMS = options.maxAwaitTimeMS;
+        }
+        if (options.session instanceof sessions_1.ClientSession) {
+            this.cursorSession = options.session;
+        }
+        else {
+            this.cursorSession = this.cursorClient.startSession({ owner: this, explicit: false });
+        }
+        this.deserializationOptions = {
+            ...this.cursorOptions,
+            validation: {
+                utf8: options?.enableUtf8Validation === false ? false : true
+            }
+        };
+        this.timeoutContext = options.timeoutContext;
+    }
+    /**
+     * The cursor has no id until it receives a response from the initial cursor creating command.
+     *
+     * It is non-zero for as long as the database has an open cursor.
+     *
+     * The initiating command may receive a zero id if the entire result is in the `firstBatch`.
+     */
+    get id() {
+        return this.cursorId ?? undefined;
+    }
+    /** @internal */
+    get isDead() {
+        return (this.cursorId?.isZero() ?? false) || this.isClosed || this.isKilled;
+    }
+    /** @internal */
+    get client() {
+        return this.cursorClient;
+    }
+    /** @internal */
+    get server() {
+        return this.selectedServer;
+    }
+    get namespace() {
+        return this.cursorNamespace;
+    }
+    get readPreference() {
+        return this.cursorOptions.readPreference;
+    }
+    get readConcern() {
+        return this.cursorOptions.readConcern;
+    }
+    /** @internal */
+    get session() {
+        return this.cursorSession;
+    }
+    set session(clientSession) {
+        this.cursorSession = clientSession;
+    }
+    /**
+     * The cursor is closed and all remaining locally buffered documents have been iterated.
+     */
+    get closed() {
+        return this.isClosed && (this.documents?.length ?? 0) === 0;
+    }
+    /**
+     * A `killCursors` command was attempted on this cursor.
+     * This is performed if the cursor id is non zero.
+     */
+    get killed() {
+        return this.isKilled;
+    }
+    get loadBalanced() {
+        return !!this.cursorClient.topology?.loadBalanced;
+    }
+    /** @internal */
+    async asyncDispose() {
+        await this.close();
+    }
+    /** Returns current buffered documents length */
+    bufferedCount() {
+        return this.documents?.length ?? 0;
+    }
+    /** Returns current buffered documents */
+    readBufferedDocuments(number) {
+        const bufferedDocs = [];
+        const documentsToRead = Math.min(number ?? this.documents?.length ?? 0, this.documents?.length ?? 0);
+        for (let count = 0; count < documentsToRead; count++) {
+            const document = this.documents?.shift(this.deserializationOptions);
+            if (document != null) {
+                bufferedDocs.push(document);
+            }
+        }
+        return bufferedDocs;
+    }
+    async *[Symbol.asyncIterator]() {
+        if (this.closed) {
+            return;
+        }
+        try {
+            while (true) {
+                if (this.isKilled) {
+                    return;
+                }
+                if (this.closed) {
+                    return;
+                }
+                if (this.cursorId != null && this.isDead && (this.documents?.length ?? 0) === 0) {
+                    return;
+                }
+                const document = await this.next();
+                // eslint-disable-next-line no-restricted-syntax
+                if (document === null) {
+                    return;
+                }
+                yield document;
+            }
+        }
+        finally {
+            // Only close the cursor if it has not already been closed. This finally clause handles
+            // the case when a user would break out of a for await of loop early.
+            if (!this.isClosed) {
+                try {
+                    await this.close();
+                }
+                catch (error) {
+                    (0, utils_1.squashError)(error);
+                }
+            }
+        }
+    }
+    stream(options) {
+        if (options?.transform) {
+            const transform = options.transform;
+            const readable = new ReadableCursorStream(this);
+            const transformedStream = readable.pipe(new stream_1.Transform({
+                objectMode: true,
+                highWaterMark: 1,
+                transform(chunk, _, callback) {
+                    try {
+                        const transformed = transform(chunk);
+                        callback(undefined, transformed);
+                    }
+                    catch (err) {
+                        callback(err);
+                    }
+                }
+            }));
+            // Bubble errors to transformed stream, because otherwise no way
+            // to handle this error.
+            readable.on('error', err => transformedStream.emit('error', err));
+            return transformedStream;
+        }
+        return new ReadableCursorStream(this);
+    }
+    async hasNext() {
+        if (this.cursorId === bson_1.Long.ZERO) {
+            return false;
+        }
+        if (this.cursorOptions.timeoutMode === exports.CursorTimeoutMode.ITERATION && this.cursorId != null) {
+            this.timeoutContext?.refresh();
+        }
+        try {
+            do {
+                if ((this.documents?.length ?? 0) !== 0) {
+                    return true;
+                }
+                await this.fetchBatch();
+            } while (!this.isDead || (this.documents?.length ?? 0) !== 0);
+        }
+        finally {
+            if (this.cursorOptions.timeoutMode === exports.CursorTimeoutMode.ITERATION) {
+                this.timeoutContext?.clear();
+            }
+        }
+        return false;
+    }
+    /** Get the next available document from the cursor, returns null if no more documents are available. */
+    async next() {
+        if (this.cursorId === bson_1.Long.ZERO) {
+            throw new error_1.MongoCursorExhaustedError();
+        }
+        if (this.cursorOptions.timeoutMode === exports.CursorTimeoutMode.ITERATION && this.cursorId != null) {
+            this.timeoutContext?.refresh();
+        }
+        try {
+            do {
+                const doc = this.documents?.shift(this.deserializationOptions);
+                if (doc != null) {
+                    if (this.transform != null)
+                        return await this.transformDocument(doc);
+                    return doc;
+                }
+                await this.fetchBatch();
+            } while (!this.isDead || (this.documents?.length ?? 0) !== 0);
+        }
+        finally {
+            if (this.cursorOptions.timeoutMode === exports.CursorTimeoutMode.ITERATION) {
+                this.timeoutContext?.clear();
+            }
+        }
+        return null;
+    }
+    /**
+     * Try to get the next available document from the cursor or `null` if an empty batch is returned
+     */
+    async tryNext() {
+        if (this.cursorId === bson_1.Long.ZERO) {
+            throw new error_1.MongoCursorExhaustedError();
+        }
+        if (this.cursorOptions.timeoutMode === exports.CursorTimeoutMode.ITERATION && this.cursorId != null) {
+            this.timeoutContext?.refresh();
+        }
+        try {
+            let doc = this.documents?.shift(this.deserializationOptions);
+            if (doc != null) {
+                if (this.transform != null)
+                    return await this.transformDocument(doc);
+                return doc;
+            }
+            await this.fetchBatch();
+            doc = this.documents?.shift(this.deserializationOptions);
+            if (doc != null) {
+                if (this.transform != null)
+                    return await this.transformDocument(doc);
+                return doc;
+            }
+        }
+        finally {
+            if (this.cursorOptions.timeoutMode === exports.CursorTimeoutMode.ITERATION) {
+                this.timeoutContext?.clear();
+            }
+        }
+        return null;
+    }
+    /**
+     * Iterates over all the documents for this cursor using the iterator, callback pattern.
+     *
+     * If the iterator returns `false`, iteration will stop.
+     *
+     * @param iterator - The iteration callback.
+     * @deprecated - Will be removed in a future release. Use for await...of instead.
+     */
+    async forEach(iterator) {
+        if (typeof iterator !== 'function') {
+            throw new error_1.MongoInvalidArgumentError('Argument "iterator" must be a function');
+        }
+        for await (const document of this) {
+            const result = iterator(document);
+            if (result === false) {
+                break;
+            }
+        }
+    }
+    /**
+     * Frees any client-side resources used by the cursor.
+     */
+    async close(options) {
+        await this.cleanup(options?.timeoutMS);
+    }
+    /**
+     * Returns an array of documents. The caller is responsible for making sure that there
+     * is enough memory to store the results. Note that the array only contains partial
+     * results when this cursor had been previously accessed. In that case,
+     * cursor.rewind() can be used to reset the cursor.
+     */
+    async toArray() {
+        const array = [];
+        // at the end of the loop (since readBufferedDocuments is called) the buffer will be empty
+        // then, the 'await of' syntax will run a getMore call
+        for await (const document of this) {
+            array.push(document);
+            const docs = this.readBufferedDocuments();
+            if (this.transform != null) {
+                for (const doc of docs) {
+                    array.push(await this.transformDocument(doc));
+                }
+            }
+            else {
+                array.push(...docs);
+            }
+        }
+        return array;
+    }
+    /**
+     * Add a cursor flag to the cursor
+     *
+     * @param flag - The flag to set, must be one of following ['tailable', 'oplogReplay', 'noCursorTimeout', 'awaitData', 'partial' -.
+     * @param value - The flag boolean value.
+     */
+    addCursorFlag(flag, value) {
+        this.throwIfInitialized();
+        if (!exports.CURSOR_FLAGS.includes(flag)) {
+            throw new error_1.MongoInvalidArgumentError(`Flag ${flag} is not one of ${exports.CURSOR_FLAGS}`);
+        }
+        if (typeof value !== 'boolean') {
+            throw new error_1.MongoInvalidArgumentError(`Flag ${flag} must be a boolean value`);
+        }
+        this.cursorOptions[flag] = value;
+        return this;
+    }
+    /**
+     * Map all documents using the provided function
+     * If there is a transform set on the cursor, that will be called first and the result passed to
+     * this function's transform.
+     *
+     * @remarks
+     *
+     * **Note** Cursors use `null` internally to indicate that there are no more documents in the cursor. Providing a mapping
+     * function that maps values to `null` will result in the cursor closing itself before it has finished iterating
+     * all documents.  This will **not** result in a memory leak, just surprising behavior.  For example:
+     *
+     * ```typescript
+     * const cursor = collection.find({});
+     * cursor.map(() => null);
+     *
+     * const documents = await cursor.toArray();
+     * // documents is always [], regardless of how many documents are in the collection.
+     * ```
+     *
+     * Other falsey values are allowed:
+     *
+     * ```typescript
+     * const cursor = collection.find({});
+     * cursor.map(() => '');
+     *
+     * const documents = await cursor.toArray();
+     * // documents is now an array of empty strings
+     * ```
+     *
+     * **Note for Typescript Users:** adding a transform changes the return type of the iteration of this cursor,
+     * it **does not** return a new instance of a cursor. This means when calling map,
+     * you should always assign the result to a new variable in order to get a correctly typed cursor variable.
+     * Take note of the following example:
+     *
+     * @example
+     * ```typescript
+     * const cursor: FindCursor<Document> = coll.find();
+     * const mappedCursor: FindCursor<number> = cursor.map(doc => Object.keys(doc).length);
+     * const keyCounts: number[] = await mappedCursor.toArray(); // cursor.toArray() still returns Document[]
+     * ```
+     * @param transform - The mapping transformation method.
+     */
+    map(transform) {
+        this.throwIfInitialized();
+        const oldTransform = this.transform;
+        if (oldTransform) {
+            this.transform = doc => {
+                return transform(oldTransform(doc));
+            };
+        }
+        else {
+            this.transform = transform;
+        }
+        return this;
+    }
+    /**
+     * Set the ReadPreference for the cursor.
+     *
+     * @param readPreference - The new read preference for the cursor.
+     */
+    withReadPreference(readPreference) {
+        this.throwIfInitialized();
+        if (readPreference instanceof read_preference_1.ReadPreference) {
+            this.cursorOptions.readPreference = readPreference;
+        }
+        else if (typeof readPreference === 'string') {
+            this.cursorOptions.readPreference = read_preference_1.ReadPreference.fromString(readPreference);
+        }
+        else {
+            throw new error_1.MongoInvalidArgumentError(`Invalid read preference: ${readPreference}`);
+        }
+        return this;
+    }
+    /**
+     * Set the ReadPreference for the cursor.
+     *
+     * @param readPreference - The new read preference for the cursor.
+     */
+    withReadConcern(readConcern) {
+        this.throwIfInitialized();
+        const resolvedReadConcern = read_concern_1.ReadConcern.fromOptions({ readConcern });
+        if (resolvedReadConcern) {
+            this.cursorOptions.readConcern = resolvedReadConcern;
+        }
+        return this;
+    }
+    /**
+     * Set a maxTimeMS on the cursor query, allowing for hard timeout limits on queries (Only supported on MongoDB 2.6 or higher)
+     *
+     * @param value - Number of milliseconds to wait before aborting the query.
+     */
+    maxTimeMS(value) {
+        this.throwIfInitialized();
+        if (typeof value !== 'number') {
+            throw new error_1.MongoInvalidArgumentError('Argument for maxTimeMS must be a number');
+        }
+        this.cursorOptions.maxTimeMS = value;
+        return this;
+    }
+    /**
+     * Set the batch size for the cursor.
+     *
+     * @param value - The number of documents to return per batch. See {@link https://www.mongodb.com/docs/manual/reference/command/find/|find command documentation}.
+     */
+    batchSize(value) {
+        this.throwIfInitialized();
+        if (this.cursorOptions.tailable) {
+            throw new error_1.MongoTailableCursorError('Tailable cursor does not support batchSize');
+        }
+        if (typeof value !== 'number') {
+            throw new error_1.MongoInvalidArgumentError('Operation "batchSize" requires an integer');
+        }
+        this.cursorOptions.batchSize = value;
+        return this;
+    }
+    /**
+     * Rewind this cursor to its uninitialized state. Any options that are present on the cursor will
+     * remain in effect. Iterating this cursor will cause new queries to be sent to the server, even
+     * if the resultant data has already been retrieved by this cursor.
+     */
+    rewind() {
+        if (this.timeoutContext && this.timeoutContext.owner !== this) {
+            throw new error_1.MongoAPIError(`Cannot rewind cursor that does not own its timeout context.`);
+        }
+        if (!this.initialized) {
+            return;
+        }
+        this.cursorId = null;
+        this.documents?.clear();
+        this.timeoutContext?.clear();
+        this.timeoutContext = undefined;
+        this.isClosed = false;
+        this.isKilled = false;
+        this.initialized = false;
+        const session = this.cursorSession;
+        if (session) {
+            // We only want to end this session if we created it, and it hasn't ended yet
+            if (session.explicit === false) {
+                if (!session.hasEnded) {
+                    session.endSession().then(undefined, utils_1.squashError);
+                }
+                this.cursorSession = this.cursorClient.startSession({ owner: this, explicit: false });
+            }
+        }
+    }
+    /** @internal */
+    async getMore(batchSize) {
+        if (this.cursorId == null) {
+            throw new error_1.MongoRuntimeError('Unexpected null cursor id. A cursor creating command should have set this');
+        }
+        if (this.selectedServer == null) {
+            throw new error_1.MongoRuntimeError('Unexpected null selectedServer. A cursor creating command should have set this');
+        }
+        const getMoreOptions = {
+            ...this.cursorOptions,
+            session: this.cursorSession,
+            batchSize
+        };
+        const getMoreOperation = new get_more_1.GetMoreOperation(this.cursorNamespace, this.cursorId, this.selectedServer, getMoreOptions);
+        return await (0, execute_operation_1.executeOperation)(this.cursorClient, getMoreOperation, this.timeoutContext);
+    }
+    /**
+     * @internal
+     *
+     * This function is exposed for the unified test runner's createChangeStream
+     * operation.  We cannot refactor to use the abstract _initialize method without
+     * a significant refactor.
+     */
+    async cursorInit() {
+        if (this.cursorOptions.timeoutMS != null) {
+            this.timeoutContext ??= new CursorTimeoutContext(timeout_1.TimeoutContext.create({
+                serverSelectionTimeoutMS: this.client.s.options.serverSelectionTimeoutMS,
+                timeoutMS: this.cursorOptions.timeoutMS
+            }), this);
+        }
+        try {
+            const state = await this._initialize(this.cursorSession);
+            // Set omitMaxTimeMS to the value needed for subsequent getMore calls
+            this.cursorOptions.omitMaxTimeMS = this.cursorOptions.timeoutMS != null;
+            const response = state.response;
+            this.selectedServer = state.server;
+            this.cursorId = response.id;
+            this.cursorNamespace = response.ns ?? this.namespace;
+            this.documents = response;
+            this.initialized = true; // the cursor is now initialized, even if it is dead
+        }
+        catch (error) {
+            // the cursor is now initialized, even if an error occurred
+            this.initialized = true;
+            await this.cleanup(undefined, error);
+            throw error;
+        }
+        if (this.isDead) {
+            await this.cleanup();
+        }
+        return;
+    }
+    /** @internal Attempt to obtain more documents */
+    async fetchBatch() {
+        if (this.isClosed) {
+            return;
+        }
+        if (this.isDead) {
+            // if the cursor is dead, we clean it up
+            // cleanupCursor should never throw, but if it does it indicates a bug in the driver
+            // and we should surface the error
+            await this.cleanup();
+            return;
+        }
+        if (this.cursorId == null) {
+            await this.cursorInit();
+            // If the cursor died or returned documents, return
+            if ((this.documents?.length ?? 0) !== 0 || this.isDead)
+                return;
+            // Otherwise, run a getMore
+        }
+        // otherwise need to call getMore
+        const batchSize = this.cursorOptions.batchSize || 1000;
+        try {
+            const response = await this.getMore(batchSize);
+            this.cursorId = response.id;
+            this.documents = response;
+        }
+        catch (error) {
+            try {
+                await this.cleanup(undefined, error);
+            }
+            catch (cleanupError) {
+                // `cleanupCursor` should never throw, squash and throw the original error
+                (0, utils_1.squashError)(cleanupError);
+            }
+            throw error;
+        }
+        if (this.isDead) {
+            // If we successfully received a response from a cursor BUT the cursor indicates that it is exhausted,
+            // we intentionally clean up the cursor to release its session back into the pool before the cursor
+            // is iterated.  This prevents a cursor that is exhausted on the server from holding
+            // onto a session indefinitely until the AbstractCursor is iterated.
+            //
+            // cleanupCursorAsync should never throw, but if it does it indicates a bug in the driver
+            // and we should surface the error
+            await this.cleanup();
+        }
+    }
+    /** @internal */
+    async cleanup(timeoutMS, error) {
+        this.isClosed = true;
+        const session = this.cursorSession;
+        const timeoutContextForKillCursors = () => {
+            if (timeoutMS != null) {
+                this.timeoutContext?.clear();
+                return new CursorTimeoutContext(timeout_1.TimeoutContext.create({
+                    serverSelectionTimeoutMS: this.client.s.options.serverSelectionTimeoutMS,
+                    timeoutMS
+                }), this);
+            }
+            else {
+                return this.timeoutContext?.refreshed();
+            }
+        };
+        try {
+            if (!this.isKilled &&
+                this.cursorId &&
+                !this.cursorId.isZero() &&
+                this.cursorNamespace &&
+                this.selectedServer &&
+                !session.hasEnded) {
+                this.isKilled = true;
+                const cursorId = this.cursorId;
+                this.cursorId = bson_1.Long.ZERO;
+                await (0, execute_operation_1.executeOperation)(this.cursorClient, new kill_cursors_1.KillCursorsOperation(cursorId, this.cursorNamespace, this.selectedServer, {
+                    session
+                }), timeoutContextForKillCursors());
+            }
+        }
+        catch (error) {
+            (0, utils_1.squashError)(error);
+        }
+        finally {
+            if (session?.owner === this) {
+                await session.endSession({ error });
+            }
+            if (!session?.inTransaction()) {
+                (0, sessions_1.maybeClearPinnedConnection)(session, { error });
+            }
+            this.emitClose();
+        }
+    }
+    /** @internal */
+    emitClose() {
+        try {
+            if (!this.hasEmittedClose && ((this.documents?.length ?? 0) === 0 || this.isClosed)) {
+                // @ts-expect-error: CursorEvents is generic so Parameters<CursorEvents["close"]> may not be assignable to `[]`. Not sure how to require extenders do not add parameters.
+                this.emit('close');
+            }
+        }
+        finally {
+            this.hasEmittedClose = true;
+        }
+    }
+    /** @internal */
+    async transformDocument(document) {
+        if (this.transform == null)
+            return document;
+        try {
+            const transformedDocument = this.transform(document);
+            // eslint-disable-next-line no-restricted-syntax
+            if (transformedDocument === null) {
+                const TRANSFORM_TO_NULL_ERROR = 'Cursor returned a `null` document, but the cursor is not exhausted.  Mapping documents to `null` is not supported in the cursor transform.';
+                throw new error_1.MongoAPIError(TRANSFORM_TO_NULL_ERROR);
+            }
+            return transformedDocument;
+        }
+        catch (transformError) {
+            try {
+                await this.close();
+            }
+            catch (closeError) {
+                (0, utils_1.squashError)(closeError);
+            }
+            throw transformError;
+        }
+    }
+    /** @internal */
+    throwIfInitialized() {
+        if (this.initialized)
+            throw new error_1.MongoCursorInUseError();
+    }
+}
+exports.AbstractCursor = AbstractCursor;
+/** @event */
+AbstractCursor.CLOSE = 'close';
+class ReadableCursorStream extends stream_1.Readable {
+    constructor(cursor) {
+        super({
+            objectMode: true,
+            autoDestroy: false,
+            highWaterMark: 1
+        });
+        this._readInProgress = false;
+        this._cursor = cursor;
+    }
+    // eslint-disable-next-line @typescript-eslint/no-unused-vars
+    _read(size) {
+        if (!this._readInProgress) {
+            this._readInProgress = true;
+            this._readNext();
+        }
+    }
+    _destroy(error, callback) {
+        this._cursor.close().then(() => callback(error), closeError => callback(closeError));
+    }
+    _readNext() {
+        if (this._cursor.id === bson_1.Long.ZERO) {
+            this.push(null);
+            return;
+        }
+        this._cursor.next().then(result => {
+            if (result == null) {
+                this.push(null);
+            }
+            else if (this.destroyed) {
+                this._cursor.close().then(undefined, utils_1.squashError);
+            }
+            else {
+                if (this.push(result)) {
+                    return this._readNext();
+                }
+                this._readInProgress = false;
+            }
+        }, err => {
+            // NOTE: This is questionable, but we have a test backing the behavior. It seems the
+            //       desired behavior is that a stream ends cleanly when a user explicitly closes
+            //       a client during iteration. Alternatively, we could do the "right" thing and
+            //       propagate the error message by removing this special case.
+            if (err.message.match(/server is closed/)) {
+                this._cursor.close().then(undefined, utils_1.squashError);
+                return this.push(null);
+            }
+            // NOTE: This is also perhaps questionable. The rationale here is that these errors tend
+            //       to be "operation was interrupted", where a cursor has been closed but there is an
+            //       active getMore in-flight. This used to check if the cursor was killed but once
+            //       that changed to happen in cleanup legitimate errors would not destroy the
+            //       stream. There are change streams test specifically test these cases.
+            if (err.message.match(/operation was interrupted/)) {
+                return this.push(null);
+            }
+            // NOTE: The two above checks on the message of the error will cause a null to be pushed
+            //       to the stream, thus closing the stream before the destroy call happens. This means
+            //       that either of those error messages on a change stream will not get a proper
+            //       'error' event to be emitted (the error passed to destroy). Change stream resumability
+            //       relies on that error event to be emitted to create its new cursor and thus was not
+            //       working on 4.4 servers because the error emitted on failover was "interrupted at
+            //       shutdown" while on 5.0+ it is "The server is in quiesce mode and will shut down".
+            //       See NODE-4475.
+            return this.destroy(err);
+        });
+    }
+}
+(0, resource_management_1.configureResourceManagement)(AbstractCursor.prototype);
+/**
+ * @internal
+ * The cursor timeout context is a wrapper around a timeout context
+ * that keeps track of the "owner" of the cursor.  For timeout contexts
+ * instantiated inside a cursor, the owner will be the cursor.
+ *
+ * All timeout behavior is exactly the same as the wrapped timeout context's.
+ */
+class CursorTimeoutContext extends timeout_1.TimeoutContext {
+    constructor(timeoutContext, owner) {
+        super();
+        this.timeoutContext = timeoutContext;
+        this.owner = owner;
+    }
+    get serverSelectionTimeout() {
+        return this.timeoutContext.serverSelectionTimeout;
+    }
+    get connectionCheckoutTimeout() {
+        return this.timeoutContext.connectionCheckoutTimeout;
+    }
+    get clearServerSelectionTimeout() {
+        return this.timeoutContext.clearServerSelectionTimeout;
+    }
+    get timeoutForSocketWrite() {
+        return this.timeoutContext.timeoutForSocketWrite;
+    }
+    get timeoutForSocketRead() {
+        return this.timeoutContext.timeoutForSocketRead;
+    }
+    csotEnabled() {
+        return this.timeoutContext.csotEnabled();
+    }
+    refresh() {
+        if (typeof this.owner !== 'symbol')
+            return this.timeoutContext.refresh();
+    }
+    clear() {
+        if (typeof this.owner !== 'symbol')
+            return this.timeoutContext.clear();
+    }
+    get maxTimeMS() {
+        return this.timeoutContext.maxTimeMS;
+    }
+    get timeoutMS() {
+        return this.timeoutContext.csotEnabled() ? this.timeoutContext.timeoutMS : null;
+    }
+    refreshed() {
+        return new CursorTimeoutContext(this.timeoutContext.refreshed(), this.owner);
+    }
+    addMaxTimeMSToCommand(command, options) {
+        this.timeoutContext.addMaxTimeMSToCommand(command, options);
+    }
+    getSocketTimeoutMS() {
+        return this.timeoutContext.getSocketTimeoutMS();
+    }
+}
+exports.CursorTimeoutContext = CursorTimeoutContext;
+//# sourceMappingURL=abstract_cursor.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cursor/abstract_cursor.js.map b/backend/node_modules/mongodb/lib/cursor/abstract_cursor.js.map
new file mode 100644
index 0000000..3d14869
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cursor/abstract_cursor.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cursor/aggregation_cursor.js b/backend/node_modules/mongodb/lib/cursor/aggregation_cursor.js
new file mode 100644
index 0000000..09baf31
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cursor/aggregation_cursor.js
@@ -0,0 +1,162 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.AggregationCursor = void 0;
+const error_1 = require("../error");
+const explain_1 = require("../explain");
+const aggregate_1 = require("../operations/aggregate");
+const execute_operation_1 = require("../operations/execute_operation");
+const utils_1 = require("../utils");
+const abstract_cursor_1 = require("./abstract_cursor");
+/**
+ * The **AggregationCursor** class is an internal class that embodies an aggregation cursor on MongoDB
+ * allowing for iteration over the results returned from the underlying query. It supports
+ * one by one document iteration, conversion to an array or can be iterated as a Node 4.X
+ * or higher stream
+ * @public
+ */
+class AggregationCursor extends explain_1.ExplainableCursor {
+    /** @internal */
+    constructor(client, namespace, pipeline = [], options = {}) {
+        super(client, namespace, options);
+        this.pipeline = pipeline;
+        this.aggregateOptions = options;
+        const lastStage = this.pipeline[this.pipeline.length - 1];
+        if (this.cursorOptions.timeoutMS != null &&
+            this.cursorOptions.timeoutMode === abstract_cursor_1.CursorTimeoutMode.ITERATION &&
+            (lastStage?.$merge != null || lastStage?.$out != null))
+            throw new error_1.MongoAPIError('Cannot use $out or $merge stage with ITERATION timeoutMode');
+    }
+    clone() {
+        const clonedOptions = (0, utils_1.mergeOptions)({}, this.aggregateOptions);
+        delete clonedOptions.session;
+        return new AggregationCursor(this.client, this.namespace, this.pipeline, {
+            ...clonedOptions
+        });
+    }
+    map(transform) {
+        return super.map(transform);
+    }
+    /** @internal */
+    async _initialize(session) {
+        const options = {
+            ...this.aggregateOptions,
+            ...this.cursorOptions,
+            session
+        };
+        if (options.explain) {
+            try {
+                (0, explain_1.validateExplainTimeoutOptions)(options, explain_1.Explain.fromOptions(options));
+            }
+            catch {
+                throw new error_1.MongoAPIError('timeoutMS cannot be used with explain when explain is specified in aggregateOptions');
+            }
+        }
+        const aggregateOperation = new aggregate_1.AggregateOperation(this.namespace, this.pipeline, options);
+        const response = await (0, execute_operation_1.executeOperation)(this.client, aggregateOperation, this.timeoutContext);
+        return { server: aggregateOperation.server, session, response };
+    }
+    async explain(verbosity, options) {
+        const { explain, timeout } = this.resolveExplainTimeoutOptions(verbosity, options);
+        return (await (0, execute_operation_1.executeOperation)(this.client, new aggregate_1.AggregateOperation(this.namespace, this.pipeline, {
+            ...this.aggregateOptions, // NOTE: order matters here, we may need to refine this
+            ...this.cursorOptions,
+            ...timeout,
+            explain: explain ?? true
+        }))).shift(this.deserializationOptions);
+    }
+    addStage(stage) {
+        this.throwIfInitialized();
+        if (this.cursorOptions.timeoutMS != null &&
+            this.cursorOptions.timeoutMode === abstract_cursor_1.CursorTimeoutMode.ITERATION &&
+            (stage.$out != null || stage.$merge != null)) {
+            throw new error_1.MongoAPIError('Cannot use $out or $merge stage with ITERATION timeoutMode');
+        }
+        this.pipeline.push(stage);
+        return this;
+    }
+    group($group) {
+        return this.addStage({ $group });
+    }
+    /** Add a limit stage to the aggregation pipeline */
+    limit($limit) {
+        return this.addStage({ $limit });
+    }
+    /** Add a match stage to the aggregation pipeline */
+    match($match) {
+        return this.addStage({ $match });
+    }
+    /** Add an out stage to the aggregation pipeline */
+    out($out) {
+        return this.addStage({ $out });
+    }
+    /**
+     * Add a project stage to the aggregation pipeline
+     *
+     * @remarks
+     * In order to strictly type this function you must provide an interface
+     * that represents the effect of your projection on the result documents.
+     *
+     * By default chaining a projection to your cursor changes the returned type to the generic {@link Document} type.
+     * You should specify a parameterized type to have assertions on your final results.
+     *
+     * @example
+     * ```typescript
+     * // Best way
+     * const docs: AggregationCursor<{ a: number }> = cursor.project<{ a: number }>({ _id: 0, a: true });
+     * // Flexible way
+     * const docs: AggregationCursor<Document> = cursor.project({ _id: 0, a: true });
+     * ```
+     *
+     * @remarks
+     * In order to strictly type this function you must provide an interface
+     * that represents the effect of your projection on the result documents.
+     *
+     * **Note for Typescript Users:** adding a transform changes the return type of the iteration of this cursor,
+     * it **does not** return a new instance of a cursor. This means when calling project,
+     * you should always assign the result to a new variable in order to get a correctly typed cursor variable.
+     * Take note of the following example:
+     *
+     * @example
+     * ```typescript
+     * const cursor: AggregationCursor<{ a: number; b: string }> = coll.aggregate([]);
+     * const projectCursor = cursor.project<{ a: number }>({ _id: 0, a: true });
+     * const aPropOnlyArray: {a: number}[] = await projectCursor.toArray();
+     *
+     * // or always use chaining and save the final cursor
+     *
+     * const cursor = coll.aggregate().project<{ a: string }>({
+     *   _id: 0,
+     *   a: { $convert: { input: '$a', to: 'string' }
+     * }});
+     * ```
+     */
+    project($project) {
+        return this.addStage({ $project });
+    }
+    /** Add a lookup stage to the aggregation pipeline */
+    lookup($lookup) {
+        return this.addStage({ $lookup });
+    }
+    /** Add a redact stage to the aggregation pipeline */
+    redact($redact) {
+        return this.addStage({ $redact });
+    }
+    /** Add a skip stage to the aggregation pipeline */
+    skip($skip) {
+        return this.addStage({ $skip });
+    }
+    /** Add a sort stage to the aggregation pipeline */
+    sort($sort) {
+        return this.addStage({ $sort });
+    }
+    /** Add a unwind stage to the aggregation pipeline */
+    unwind($unwind) {
+        return this.addStage({ $unwind });
+    }
+    /** Add a geoNear stage to the aggregation pipeline */
+    geoNear($geoNear) {
+        return this.addStage({ $geoNear });
+    }
+}
+exports.AggregationCursor = AggregationCursor;
+//# sourceMappingURL=aggregation_cursor.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cursor/aggregation_cursor.js.map b/backend/node_modules/mongodb/lib/cursor/aggregation_cursor.js.map
new file mode 100644
index 0000000..497b9c8
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cursor/aggregation_cursor.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"aggregation_cursor.js","sourceRoot":"","sources":["../../src/cursor/aggregation_cursor.ts"],"names":[],"mappings":";;;AACA,oCAAyC;AACzC,wCAMoB;AAEpB,uDAAoF;AACpF,uEAAmE;AAGnE,oCAA+D;AAC/D,uDAI2B;AAK3B;;;;;;GAMG;AACH,MAAa,iBAAiC,SAAQ,2BAA0B;IAK9E,gBAAgB;IAChB,YACE,MAAmB,EACnB,SAA2B,EAC3B,WAAuB,EAAE,EACzB,UAA4B,EAAE;QAE9B,KAAK,CAAC,MAAM,EAAE,SAAS,EAAE,OAAO,CAAC,CAAC;QAElC,IAAI,CAAC,QAAQ,GAAG,QAAQ,CAAC;QACzB,IAAI,CAAC,gBAAgB,GAAG,OAAO,CAAC;QAEhC,MAAM,SAAS,GAAyB,IAAI,CAAC,QAAQ,CAAC,IAAI,CAAC,QAAQ,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC;QAEhF,IACE,IAAI,CAAC,aAAa,CAAC,SAAS,IAAI,IAAI;YACpC,IAAI,CAAC,aAAa,CAAC,WAAW,KAAK,mCAAiB,CAAC,SAAS;YAC9D,CAAC,SAAS,EAAE,MAAM,IAAI,IAAI,IAAI,SAAS,EAAE,IAAI,IAAI,IAAI,CAAC;YAEtD,MAAM,IAAI,qBAAa,CAAC,4DAA4D,CAAC,CAAC;IAC1F,CAAC;IAED,KAAK;QACH,MAAM,aAAa,GAAG,IAAA,oBAAY,EAAC,EAAE,EAAE,IAAI,CAAC,gBAAgB,CAAC,CAAC;QAC9D,OAAO,aAAa,CAAC,OAAO,CAAC;QAC7B,OAAO,IAAI,iBAAiB,CAAC,IAAI,CAAC,MAAM,EAAE,IAAI,CAAC,SAAS,EAAE,IAAI,CAAC,QAAQ,EAAE;YACvE,GAAG,aAAa;SACjB,CAAC,CAAC;IACL,CAAC;IAEQ,GAAG,CAAI,SAA8B;QAC5C,OAAO,KAAK,CAAC,GAAG,CAAC,SAAS,CAAyB,CAAC;IACtD,CAAC;IAED,gBAAgB;IAChB,KAAK,CAAC,WAAW,CAAC,OAAsB;QACtC,MAAM,OAAO,GAAG;YACd,GAAG,IAAI,CAAC,gBAAgB;YACxB,GAAG,IAAI,CAAC,aAAa;YACrB,OAAO;SACR,CAAC;QACF,IAAI,OAAO,CAAC,OAAO,EAAE,CAAC;YACpB,IAAI,CAAC;gBACH,IAAA,uCAA6B,EAAC,OAAO,EAAE,iBAAO,CAAC,WAAW,CAAC,OAAO,CAAC,CAAC,CAAC;YACvE,CAAC;YAAC,MAAM,CAAC;gBACP,MAAM,IAAI,qBAAa,CACrB,qFAAqF,CACtF,CAAC;YACJ,CAAC;QACH,CAAC;QAED,MAAM,kBAAkB,GAAG,IAAI,8BAAkB,CAAC,IAAI,CAAC,SAAS,EAAE,IAAI,CAAC,QAAQ,EAAE,OAAO,CAAC,CAAC;QAE1F,MAAM,QAAQ,GAAG,MAAM,IAAA,oCAAgB,EAAC,IAAI,CAAC,MAAM,EAAE,kBAAkB,EAAE,IAAI,CAAC,cAAc,CAAC,CAAC;QAE9F,OAAO,EAAE,MAAM,EAAE,kBAAkB,CAAC,MAAM,EAAE,OAAO,EAAE,QAAQ,EAAE,CAAC;IAClE,CAAC;IAUD,KAAK,CAAC,OAAO,CACX,SAAiF,EACjF,OAAgC;QAEhC,MAAM,EAAE,OAAO,EAAE,OAAO,EAAE,GAAG,IAAI,CAAC,4BAA4B,CAAC,SAAS,EAAE,OAAO,CAAC,CAAC;QACnF,OAAO,CACL,MAAM,IAAA,oCAAgB,EACpB,IAAI,CAAC,MAAM,EACX,IAAI,8BAAkB,CAAC,IAAI,CAAC,SAAS,EAAE,IAAI,CAAC,QAAQ,EAAE;YACpD,GAAG,IAAI,CAAC,gBAAgB,EAAE,uDAAuD;YACjF,GAAG,IAAI,CAAC,aAAa;YACrB,GAAG,OAAO;YACV,OAAO,EAAE,OAAO,IAAI,IAAI;SACzB,CAAC,CACH,CACF,CAAC,KAAK,CAAC,IAAI,CAAC,sBAAsB,CAAC,CAAC;IACvC,CAAC;IAgBD,QAAQ,CAAe,KAAe;QACpC,IAAI,CAAC,kBAAkB,EAAE,CAAC;QAC1B,IACE,IAAI,CAAC,aAAa,CAAC,SAAS,IAAI,IAAI;YACpC,IAAI,CAAC,aAAa,CAAC,WAAW,KAAK,mCAAiB,CAAC,SAAS;YAC9D,CAAC,KAAK,CAAC,IAAI,IAAI,IAAI,IAAI,KAAK,CAAC,MAAM,IAAI,IAAI,CAAC,EAC5C,CAAC;YACD,MAAM,IAAI,qBAAa,CAAC,4DAA4D,CAAC,CAAC;QACxF,CAAC;QACD,IAAI,CAAC,QAAQ,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC;QAC1B,OAAO,IAAuC,CAAC;IACjD,CAAC;IAID,KAAK,CAAC,MAAgB;QACpB,OAAO,IAAI,CAAC,QAAQ,CAAC,EAAE,MAAM,EAAE,CAAC,CAAC;IACnC,CAAC;IAED,oDAAoD;IACpD,KAAK,CAAC,MAAc;QAClB,OAAO,IAAI,CAAC,QAAQ,CAAC,EAAE,MAAM,EAAE,CAAC,CAAC;IACnC,CAAC;IAED,oDAAoD;IACpD,KAAK,CAAC,MAAgB;QACpB,OAAO,IAAI,CAAC,QAAQ,CAAC,EAAE,MAAM,EAAE,CAAC,CAAC;IACnC,CAAC;IAED,mDAAmD;IACnD,GAAG,CAAC,IAA2C;QAC7C,OAAO,IAAI,CAAC,QAAQ,CAAC,EAAE,IAAI,EAAE,CAAC,CAAC;IACjC,CAAC;IAED;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;OAwCG;IACH,OAAO,CAAgC,QAAkB;QACvD,OAAO,IAAI,CAAC,QAAQ,CAAI,EAAE,QAAQ,EAAE,CAAC,CAAC;IACxC,CAAC;IAED,qDAAqD;IACrD,MAAM,CAAC,OAAiB;QACtB,OAAO,IAAI,CAAC,QAAQ,CAAC,EAAE,OAAO,EAAE,CAAC,CAAC;IACpC,CAAC;IAED,qDAAqD;IACrD,MAAM,CAAC,OAAiB;QACtB,OAAO,IAAI,CAAC,QAAQ,CAAC,EAAE,OAAO,EAAE,CAAC,CAAC;IACpC,CAAC;IAED,mDAAmD;IACnD,IAAI,CAAC,KAAa;QAChB,OAAO,IAAI,CAAC,QAAQ,CAAC,EAAE,KAAK,EAAE,CAAC,CAAC;IAClC,CAAC;IAED,mDAAmD;IACnD,IAAI,CAAC,KAAW;QACd,OAAO,IAAI,CAAC,QAAQ,CAAC,EAAE,KAAK,EAAE,CAAC,CAAC;IAClC,CAAC;IAED,qDAAqD;IACrD,MAAM,CAAC,OAA0B;QAC/B,OAAO,IAAI,CAAC,QAAQ,CAAC,EAAE,OAAO,EAAE,CAAC,CAAC;IACpC,CAAC;IAED,sDAAsD;IACtD,OAAO,CAAC,QAAkB;QACxB,OAAO,IAAI,CAAC,QAAQ,CAAC,EAAE,QAAQ,EAAE,CAAC,CAAC;IACrC,CAAC;CACF;AAnND,8CAmNC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cursor/change_stream_cursor.js b/backend/node_modules/mongodb/lib/cursor/change_stream_cursor.js
new file mode 100644
index 0000000..213692a
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cursor/change_stream_cursor.js
@@ -0,0 +1,105 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ChangeStreamCursor = void 0;
+const change_stream_1 = require("../change_stream");
+const constants_1 = require("../constants");
+const aggregate_1 = require("../operations/aggregate");
+const execute_operation_1 = require("../operations/execute_operation");
+const utils_1 = require("../utils");
+const abstract_cursor_1 = require("./abstract_cursor");
+/** @internal */
+class ChangeStreamCursor extends abstract_cursor_1.AbstractCursor {
+    constructor(client, namespace, pipeline = [], options = {}) {
+        super(client, namespace, { ...options, tailable: true, awaitData: true });
+        this.pipeline = pipeline;
+        this.changeStreamCursorOptions = options;
+        this._resumeToken = null;
+        this.startAtOperationTime = options.startAtOperationTime ?? null;
+        if (options.startAfter) {
+            this.resumeToken = options.startAfter;
+        }
+        else if (options.resumeAfter) {
+            this.resumeToken = options.resumeAfter;
+        }
+    }
+    set resumeToken(token) {
+        this._resumeToken = token;
+        this.emit(change_stream_1.ChangeStream.RESUME_TOKEN_CHANGED, token);
+    }
+    get resumeToken() {
+        return this._resumeToken;
+    }
+    get resumeOptions() {
+        const options = {
+            ...this.changeStreamCursorOptions
+        };
+        for (const key of ['resumeAfter', 'startAfter', 'startAtOperationTime']) {
+            delete options[key];
+        }
+        if (this.resumeToken != null) {
+            if (this.changeStreamCursorOptions.startAfter && !this.hasReceived) {
+                options.startAfter = this.resumeToken;
+            }
+            else {
+                options.resumeAfter = this.resumeToken;
+            }
+        }
+        else if (this.startAtOperationTime != null && (0, utils_1.maxWireVersion)(this.server) >= 7) {
+            options.startAtOperationTime = this.startAtOperationTime;
+        }
+        return options;
+    }
+    cacheResumeToken(resumeToken) {
+        if (this.bufferedCount() === 0 && this.postBatchResumeToken) {
+            this.resumeToken = this.postBatchResumeToken;
+        }
+        else {
+            this.resumeToken = resumeToken;
+        }
+        this.hasReceived = true;
+    }
+    _processBatch(response) {
+        const { postBatchResumeToken } = response;
+        if (postBatchResumeToken) {
+            this.postBatchResumeToken = postBatchResumeToken;
+            if (response.batchSize === 0) {
+                this.resumeToken = postBatchResumeToken;
+            }
+        }
+    }
+    clone() {
+        return new ChangeStreamCursor(this.client, this.namespace, this.pipeline, {
+            ...this.cursorOptions
+        });
+    }
+    async _initialize(session) {
+        const aggregateOperation = new aggregate_1.AggregateOperation(this.namespace, this.pipeline, {
+            ...this.cursorOptions,
+            ...this.changeStreamCursorOptions,
+            session
+        });
+        const response = await (0, execute_operation_1.executeOperation)(session.client, aggregateOperation, this.timeoutContext);
+        const server = aggregateOperation.server;
+        this.maxWireVersion = (0, utils_1.maxWireVersion)(server);
+        if (this.startAtOperationTime == null &&
+            this.changeStreamCursorOptions.resumeAfter == null &&
+            this.changeStreamCursorOptions.startAfter == null &&
+            this.maxWireVersion >= 7) {
+            this.startAtOperationTime = response.operationTime;
+        }
+        this._processBatch(response);
+        this.emit(constants_1.INIT, response);
+        this.emit(constants_1.RESPONSE);
+        return { server, session, response };
+    }
+    async getMore(batchSize) {
+        const response = await super.getMore(batchSize);
+        this.maxWireVersion = (0, utils_1.maxWireVersion)(this.server);
+        this._processBatch(response);
+        this.emit(change_stream_1.ChangeStream.MORE, response);
+        this.emit(change_stream_1.ChangeStream.RESPONSE);
+        return response;
+    }
+}
+exports.ChangeStreamCursor = ChangeStreamCursor;
+//# sourceMappingURL=change_stream_cursor.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cursor/change_stream_cursor.js.map b/backend/node_modules/mongodb/lib/cursor/change_stream_cursor.js.map
new file mode 100644
index 0000000..82e4a59
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cursor/change_stream_cursor.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"change_stream_cursor.js","sourceRoot":"","sources":["../../src/cursor/change_stream_cursor.ts"],"names":[],"mappings":";;;AACA,oDAM0B;AAE1B,4CAA8C;AAE9C,uDAA6D;AAE7D,uEAAmE;AAEnE,oCAAiE;AACjE,uDAI2B;AAY3B,gBAAgB;AAChB,MAAa,kBAGX,SAAQ,gCAA2C;IAenD,YACE,MAAmB,EACnB,SAA2B,EAC3B,WAAuB,EAAE,EACzB,UAAqC,EAAE;QAEvC,KAAK,CAAC,MAAM,EAAE,SAAS,EAAE,EAAE,GAAG,OAAO,EAAE,QAAQ,EAAE,IAAI,EAAE,SAAS,EAAE,IAAI,EAAE,CAAC,CAAC;QAE1E,IAAI,CAAC,QAAQ,GAAG,QAAQ,CAAC;QACzB,IAAI,CAAC,yBAAyB,GAAG,OAAO,CAAC;QACzC,IAAI,CAAC,YAAY,GAAG,IAAI,CAAC;QACzB,IAAI,CAAC,oBAAoB,GAAG,OAAO,CAAC,oBAAoB,IAAI,IAAI,CAAC;QAEjE,IAAI,OAAO,CAAC,UAAU,EAAE,CAAC;YACvB,IAAI,CAAC,WAAW,GAAG,OAAO,CAAC,UAAU,CAAC;QACxC,CAAC;aAAM,IAAI,OAAO,CAAC,WAAW,EAAE,CAAC;YAC/B,IAAI,CAAC,WAAW,GAAG,OAAO,CAAC,WAAW,CAAC;QACzC,CAAC;IACH,CAAC;IAED,IAAI,WAAW,CAAC,KAAkB;QAChC,IAAI,CAAC,YAAY,GAAG,KAAK,CAAC;QAC1B,IAAI,CAAC,IAAI,CAAC,4BAAY,CAAC,oBAAoB,EAAE,KAAK,CAAC,CAAC;IACtD,CAAC;IAED,IAAI,WAAW;QACb,OAAO,IAAI,CAAC,YAAY,CAAC;IAC3B,CAAC;IAED,IAAI,aAAa;QACf,MAAM,OAAO,GAA8B;YACzC,GAAG,IAAI,CAAC,yBAAyB;SAClC,CAAC;QAEF,KAAK,MAAM,GAAG,IAAI,CAAC,aAAa,EAAE,YAAY,EAAE,sBAAsB,CAAU,EAAE,CAAC;YACjF,OAAO,OAAO,CAAC,GAAG,CAAC,CAAC;QACtB,CAAC;QAED,IAAI,IAAI,CAAC,WAAW,IAAI,IAAI,EAAE,CAAC;YAC7B,IAAI,IAAI,CAAC,yBAAyB,CAAC,UAAU,IAAI,CAAC,IAAI,CAAC,WAAW,EAAE,CAAC;gBACnE,OAAO,CAAC,UAAU,GAAG,IAAI,CAAC,WAAW,CAAC;YACxC,CAAC;iBAAM,CAAC;gBACN,OAAO,CAAC,WAAW,GAAG,IAAI,CAAC,WAAW,CAAC;YACzC,CAAC;QACH,CAAC;aAAM,IAAI,IAAI,CAAC,oBAAoB,IAAI,IAAI,IAAI,IAAA,sBAAc,EAAC,IAAI,CAAC,MAAM,CAAC,IAAI,CAAC,EAAE,CAAC;YACjF,OAAO,CAAC,oBAAoB,GAAG,IAAI,CAAC,oBAAoB,CAAC;QAC3D,CAAC;QAED,OAAO,OAAO,CAAC;IACjB,CAAC;IAED,gBAAgB,CAAC,WAAwB;QACvC,IAAI,IAAI,CAAC,aAAa,EAAE,KAAK,CAAC,IAAI,IAAI,CAAC,oBAAoB,EAAE,CAAC;YAC5D,IAAI,CAAC,WAAW,GAAG,IAAI,CAAC,oBAAoB,CAAC;QAC/C,CAAC;aAAM,CAAC;YACN,IAAI,CAAC,WAAW,GAAG,WAAW,CAAC;QACjC,CAAC;QACD,IAAI,CAAC,WAAW,GAAG,IAAI,CAAC;IAC1B,CAAC;IAED,aAAa,CAAC,QAAwB;QACpC,MAAM,EAAE,oBAAoB,EAAE,GAAG,QAAQ,CAAC;QAC1C,IAAI,oBAAoB,EAAE,CAAC;YACzB,IAAI,CAAC,oBAAoB,GAAG,oBAAoB,CAAC;YAEjD,IAAI,QAAQ,CAAC,SAAS,KAAK,CAAC,EAAE,CAAC;gBAC7B,IAAI,CAAC,WAAW,GAAG,oBAAoB,CAAC;YAC1C,CAAC;QACH,CAAC;IACH,CAAC;IAED,KAAK;QACH,OAAO,IAAI,kBAAkB,CAAC,IAAI,CAAC,MAAM,EAAE,IAAI,CAAC,SAAS,EAAE,IAAI,CAAC,QAAQ,EAAE;YACxE,GAAG,IAAI,CAAC,aAAa;SACtB,CAAC,CAAC;IACL,CAAC;IAED,KAAK,CAAC,WAAW,CAAC,OAAsB;QACtC,MAAM,kBAAkB,GAAG,IAAI,8BAAkB,CAAC,IAAI,CAAC,SAAS,EAAE,IAAI,CAAC,QAAQ,EAAE;YAC/E,GAAG,IAAI,CAAC,aAAa;YACrB,GAAG,IAAI,CAAC,yBAAyB;YACjC,OAAO;SACR,CAAC,CAAC;QAEH,MAAM,QAAQ,GAAG,MAAM,IAAA,oCAAgB,EACrC,OAAO,CAAC,MAAM,EACd,kBAAkB,EAClB,IAAI,CAAC,cAAc,CACpB,CAAC;QAEF,MAAM,MAAM,GAAG,kBAAkB,CAAC,MAAM,CAAC;QACzC,IAAI,CAAC,cAAc,GAAG,IAAA,sBAAc,EAAC,MAAM,CAAC,CAAC;QAE7C,IACE,IAAI,CAAC,oBAAoB,IAAI,IAAI;YACjC,IAAI,CAAC,yBAAyB,CAAC,WAAW,IAAI,IAAI;YAClD,IAAI,CAAC,yBAAyB,CAAC,UAAU,IAAI,IAAI;YACjD,IAAI,CAAC,cAAc,IAAI,CAAC,EACxB,CAAC;YACD,IAAI,CAAC,oBAAoB,GAAG,QAAQ,CAAC,aAAa,CAAC;QACrD,CAAC;QAED,IAAI,CAAC,aAAa,CAAC,QAAQ,CAAC,CAAC;QAE7B,IAAI,CAAC,IAAI,CAAC,gBAAI,EAAE,QAAQ,CAAC,CAAC;QAC1B,IAAI,CAAC,IAAI,CAAC,oBAAQ,CAAC,CAAC;QAEpB,OAAO,EAAE,MAAM,EAAE,OAAO,EAAE,QAAQ,EAAE,CAAC;IACvC,CAAC;IAEQ,KAAK,CAAC,OAAO,CAAC,SAAiB;QACtC,MAAM,QAAQ,GAAG,MAAM,KAAK,CAAC,OAAO,CAAC,SAAS,CAAC,CAAC;QAEhD,IAAI,CAAC,cAAc,GAAG,IAAA,sBAAc,EAAC,IAAI,CAAC,MAAM,CAAC,CAAC;QAClD,IAAI,CAAC,aAAa,CAAC,QAAQ,CAAC,CAAC;QAE7B,IAAI,CAAC,IAAI,CAAC,4BAAY,CAAC,IAAI,EAAE,QAAQ,CAAC,CAAC;QACvC,IAAI,CAAC,IAAI,CAAC,4BAAY,CAAC,QAAQ,CAAC,CAAC;QACjC,OAAO,QAAQ,CAAC;IAClB,CAAC;CACF;AA1ID,gDA0IC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cursor/client_bulk_write_cursor.js b/backend/node_modules/mongodb/lib/cursor/client_bulk_write_cursor.js
new file mode 100644
index 0000000..6abd4ec
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cursor/client_bulk_write_cursor.js
@@ -0,0 +1,52 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ClientBulkWriteCursor = void 0;
+const client_bulk_write_1 = require("../operations/client_bulk_write/client_bulk_write");
+const execute_operation_1 = require("../operations/execute_operation");
+const utils_1 = require("../utils");
+const abstract_cursor_1 = require("./abstract_cursor");
+/**
+ * This is the cursor that handles client bulk write operations. Note this is never
+ * exposed directly to the user and is always immediately exhausted.
+ * @internal
+ */
+class ClientBulkWriteCursor extends abstract_cursor_1.AbstractCursor {
+    /** @internal */
+    constructor(client, commandBuilder, options = {}) {
+        super(client, new utils_1.MongoDBNamespace('admin', '$cmd'), options);
+        this.commandBuilder = commandBuilder;
+        this.clientBulkWriteOptions = options;
+    }
+    /**
+     * We need a way to get the top level cursor response fields for
+     * generating the bulk write result, so we expose this here.
+     */
+    get response() {
+        if (this.cursorResponse)
+            return this.cursorResponse;
+        return null;
+    }
+    get operations() {
+        return this.commandBuilder.lastOperations;
+    }
+    clone() {
+        const clonedOptions = (0, utils_1.mergeOptions)({}, this.clientBulkWriteOptions);
+        delete clonedOptions.session;
+        return new ClientBulkWriteCursor(this.client, this.commandBuilder, {
+            ...clonedOptions
+        });
+    }
+    /** @internal */
+    async _initialize(session) {
+        const clientBulkWriteOperation = new client_bulk_write_1.ClientBulkWriteOperation(this.commandBuilder, {
+            ...this.clientBulkWriteOptions,
+            ...this.cursorOptions,
+            session
+        });
+        const response = await (0, execute_operation_1.executeOperation)(this.client, clientBulkWriteOperation, this.timeoutContext);
+        this.cursorResponse = response;
+        return { server: clientBulkWriteOperation.server, session, response };
+    }
+}
+exports.ClientBulkWriteCursor = ClientBulkWriteCursor;
+//# sourceMappingURL=client_bulk_write_cursor.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cursor/client_bulk_write_cursor.js.map b/backend/node_modules/mongodb/lib/cursor/client_bulk_write_cursor.js.map
new file mode 100644
index 0000000..ad28ab4
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cursor/client_bulk_write_cursor.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cursor/find_cursor.js b/backend/node_modules/mongodb/lib/cursor/find_cursor.js
new file mode 100644
index 0000000..bccc7a9
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cursor/find_cursor.js
@@ -0,0 +1,386 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.FindCursor = exports.FLAGS = void 0;
+const responses_1 = require("../cmap/wire_protocol/responses");
+const error_1 = require("../error");
+const explain_1 = require("../explain");
+const count_1 = require("../operations/count");
+const execute_operation_1 = require("../operations/execute_operation");
+const find_1 = require("../operations/find");
+const sort_1 = require("../sort");
+const utils_1 = require("../utils");
+/** @public Flags allowed for cursor */
+exports.FLAGS = [
+    'tailable',
+    'oplogReplay',
+    'noCursorTimeout',
+    'awaitData',
+    'exhaust',
+    'partial'
+];
+/** @public */
+class FindCursor extends explain_1.ExplainableCursor {
+    /** @internal */
+    constructor(client, namespace, filter = {}, options = {}) {
+        super(client, namespace, options);
+        /** @internal */
+        this.numReturned = 0;
+        this.cursorFilter = filter;
+        this.findOptions = options;
+        if (options.sort != null) {
+            this.findOptions.sort = (0, sort_1.formatSort)(options.sort);
+        }
+    }
+    clone() {
+        const clonedOptions = (0, utils_1.mergeOptions)({}, this.findOptions);
+        delete clonedOptions.session;
+        return new FindCursor(this.client, this.namespace, this.cursorFilter, {
+            ...clonedOptions
+        });
+    }
+    map(transform) {
+        return super.map(transform);
+    }
+    /** @internal */
+    async _initialize(session) {
+        const options = {
+            ...this.findOptions, // NOTE: order matters here, we may need to refine this
+            ...this.cursorOptions,
+            session
+        };
+        if (options.explain) {
+            try {
+                (0, explain_1.validateExplainTimeoutOptions)(options, explain_1.Explain.fromOptions(options));
+            }
+            catch {
+                throw new error_1.MongoAPIError('timeoutMS cannot be used with explain when explain is specified in findOptions');
+            }
+        }
+        const findOperation = new find_1.FindOperation(this.namespace, this.cursorFilter, options);
+        const response = await (0, execute_operation_1.executeOperation)(this.client, findOperation, this.timeoutContext);
+        // the response is not a cursor when `explain` is enabled
+        this.numReturned = response.batchSize;
+        return { server: findOperation.server, session, response };
+    }
+    /** @internal */
+    async getMore(batchSize) {
+        const numReturned = this.numReturned;
+        if (numReturned) {
+            // TODO(DRIVERS-1448): Remove logic to enforce `limit` in the driver
+            const limit = this.findOptions.limit;
+            batchSize =
+                limit && limit > 0 && numReturned + batchSize > limit ? limit - numReturned : batchSize;
+            if (batchSize <= 0) {
+                try {
+                    await this.close();
+                }
+                catch (error) {
+                    (0, utils_1.squashError)(error);
+                    // this is an optimization for the special case of a limit for a find command to avoid an
+                    // extra getMore when the limit has been reached and the limit is a multiple of the batchSize.
+                    // This is a consequence of the new query engine in 5.0 having no knowledge of the limit as it
+                    // produces results for the find command.  Once a batch is filled up, it is returned and only
+                    // on the subsequent getMore will the query framework consider the limit, determine the cursor
+                    // is exhausted and return a cursorId of zero.
+                    // instead, if we determine there are no more documents to request from the server, we preemptively
+                    // close the cursor
+                }
+                return responses_1.CursorResponse.emptyGetMore;
+            }
+        }
+        const response = await super.getMore(batchSize);
+        // TODO: wrap this in some logic to prevent it from happening if we don't need this support
+        this.numReturned = this.numReturned + response.batchSize;
+        return response;
+    }
+    /**
+     * Get the count of documents for this cursor
+     * @deprecated Use `collection.estimatedDocumentCount` or `collection.countDocuments` instead
+     */
+    async count(options) {
+        (0, utils_1.emitWarningOnce)('cursor.count is deprecated and will be removed in the next major version, please use `collection.estimatedDocumentCount` or `collection.countDocuments` instead ');
+        if (typeof options === 'boolean') {
+            throw new error_1.MongoInvalidArgumentError('Invalid first parameter to count');
+        }
+        return await (0, execute_operation_1.executeOperation)(this.client, new count_1.CountOperation(this.namespace, this.cursorFilter, {
+            ...this.findOptions, // NOTE: order matters here, we may need to refine this
+            ...this.cursorOptions,
+            ...options
+        }));
+    }
+    async explain(verbosity, options) {
+        const { explain, timeout } = this.resolveExplainTimeoutOptions(verbosity, options);
+        return (await (0, execute_operation_1.executeOperation)(this.client, new find_1.FindOperation(this.namespace, this.cursorFilter, {
+            ...this.findOptions, // NOTE: order matters here, we may need to refine this
+            ...this.cursorOptions,
+            ...timeout,
+            explain: explain ?? true
+        }))).shift(this.deserializationOptions);
+    }
+    /** Set the cursor query */
+    filter(filter) {
+        this.throwIfInitialized();
+        this.cursorFilter = filter;
+        return this;
+    }
+    /**
+     * Set the cursor hint
+     *
+     * @param hint - If specified, then the query system will only consider plans using the hinted index.
+     */
+    hint(hint) {
+        this.throwIfInitialized();
+        this.findOptions.hint = hint;
+        return this;
+    }
+    /**
+     * Set the cursor min
+     *
+     * @param min - Specify a $min value to specify the inclusive lower bound for a specific index in order to constrain the results of find(). The $min specifies the lower bound for all keys of a specific index in order.
+     */
+    min(min) {
+        this.throwIfInitialized();
+        this.findOptions.min = min;
+        return this;
+    }
+    /**
+     * Set the cursor max
+     *
+     * @param max - Specify a $max value to specify the exclusive upper bound for a specific index in order to constrain the results of find(). The $max specifies the upper bound for all keys of a specific index in order.
+     */
+    max(max) {
+        this.throwIfInitialized();
+        this.findOptions.max = max;
+        return this;
+    }
+    /**
+     * Set the cursor returnKey.
+     * If set to true, modifies the cursor to only return the index field or fields for the results of the query, rather than documents.
+     * If set to true and the query does not use an index to perform the read operation, the returned documents will not contain any fields.
+     *
+     * @param value - the returnKey value.
+     */
+    returnKey(value) {
+        this.throwIfInitialized();
+        this.findOptions.returnKey = value;
+        return this;
+    }
+    /**
+     * Modifies the output of a query by adding a field $recordId to matching documents. $recordId is the internal key which uniquely identifies a document in a collection.
+     *
+     * @param value - The $showDiskLoc option has now been deprecated and replaced with the showRecordId field. $showDiskLoc will still be accepted for OP_QUERY stye find.
+     */
+    showRecordId(value) {
+        this.throwIfInitialized();
+        this.findOptions.showRecordId = value;
+        return this;
+    }
+    /**
+     * Add a query modifier to the cursor query
+     *
+     * @param name - The query modifier (must start with $, such as $orderby etc)
+     * @param value - The modifier value.
+     */
+    addQueryModifier(name, value) {
+        this.throwIfInitialized();
+        if (name[0] !== '$') {
+            throw new error_1.MongoInvalidArgumentError(`${name} is not a valid query modifier`);
+        }
+        // Strip of the $
+        const field = name.substr(1);
+        // NOTE: consider some TS magic for this
+        switch (field) {
+            case 'comment':
+                this.findOptions.comment = value;
+                break;
+            case 'explain':
+                this.findOptions.explain = value;
+                break;
+            case 'hint':
+                this.findOptions.hint = value;
+                break;
+            case 'max':
+                this.findOptions.max = value;
+                break;
+            case 'maxTimeMS':
+                this.findOptions.maxTimeMS = value;
+                break;
+            case 'min':
+                this.findOptions.min = value;
+                break;
+            case 'orderby':
+                this.findOptions.sort = (0, sort_1.formatSort)(value);
+                break;
+            case 'query':
+                this.cursorFilter = value;
+                break;
+            case 'returnKey':
+                this.findOptions.returnKey = value;
+                break;
+            case 'showDiskLoc':
+                this.findOptions.showRecordId = value;
+                break;
+            default:
+                throw new error_1.MongoInvalidArgumentError(`Invalid query modifier: ${name}`);
+        }
+        return this;
+    }
+    /**
+     * Add a comment to the cursor query allowing for tracking the comment in the log.
+     *
+     * @param value - The comment attached to this query.
+     */
+    comment(value) {
+        this.throwIfInitialized();
+        this.findOptions.comment = value;
+        return this;
+    }
+    /**
+     * Set a maxAwaitTimeMS on a tailing cursor query to allow to customize the timeout value for the option awaitData (Only supported on MongoDB 3.2 or higher, ignored otherwise)
+     *
+     * @param value - Number of milliseconds to wait before aborting the tailed query.
+     */
+    maxAwaitTimeMS(value) {
+        this.throwIfInitialized();
+        if (typeof value !== 'number') {
+            throw new error_1.MongoInvalidArgumentError('Argument for maxAwaitTimeMS must be a number');
+        }
+        this.findOptions.maxAwaitTimeMS = value;
+        return this;
+    }
+    /**
+     * Set a maxTimeMS on the cursor query, allowing for hard timeout limits on queries (Only supported on MongoDB 2.6 or higher)
+     *
+     * @param value - Number of milliseconds to wait before aborting the query.
+     */
+    maxTimeMS(value) {
+        this.throwIfInitialized();
+        if (typeof value !== 'number') {
+            throw new error_1.MongoInvalidArgumentError('Argument for maxTimeMS must be a number');
+        }
+        this.findOptions.maxTimeMS = value;
+        return this;
+    }
+    /**
+     * Add a project stage to the aggregation pipeline
+     *
+     * @remarks
+     * In order to strictly type this function you must provide an interface
+     * that represents the effect of your projection on the result documents.
+     *
+     * By default chaining a projection to your cursor changes the returned type to the generic
+     * {@link Document} type.
+     * You should specify a parameterized type to have assertions on your final results.
+     *
+     * @example
+     * ```typescript
+     * // Best way
+     * const docs: FindCursor<{ a: number }> = cursor.project<{ a: number }>({ _id: 0, a: true });
+     * // Flexible way
+     * const docs: FindCursor<Document> = cursor.project({ _id: 0, a: true });
+     * ```
+     *
+     * @remarks
+     *
+     * **Note for Typescript Users:** adding a transform changes the return type of the iteration of this cursor,
+     * it **does not** return a new instance of a cursor. This means when calling project,
+     * you should always assign the result to a new variable in order to get a correctly typed cursor variable.
+     * Take note of the following example:
+     *
+     * @example
+     * ```typescript
+     * const cursor: FindCursor<{ a: number; b: string }> = coll.find();
+     * const projectCursor = cursor.project<{ a: number }>({ _id: 0, a: true });
+     * const aPropOnlyArray: {a: number}[] = await projectCursor.toArray();
+     *
+     * // or always use chaining and save the final cursor
+     *
+     * const cursor = coll.find().project<{ a: string }>({
+     *   _id: 0,
+     *   a: { $convert: { input: '$a', to: 'string' }
+     * }});
+     * ```
+     */
+    project(value) {
+        this.throwIfInitialized();
+        this.findOptions.projection = value;
+        return this;
+    }
+    /**
+     * Sets the sort order of the cursor query.
+     *
+     * @param sort - The key or keys set for the sort.
+     * @param direction - The direction of the sorting (1 or -1).
+     */
+    sort(sort, direction) {
+        this.throwIfInitialized();
+        if (this.findOptions.tailable) {
+            throw new error_1.MongoTailableCursorError('Tailable cursor does not support sorting');
+        }
+        this.findOptions.sort = (0, sort_1.formatSort)(sort, direction);
+        return this;
+    }
+    /**
+     * Allows disk use for blocking sort operations exceeding 100MB memory. (MongoDB 3.2 or higher)
+     *
+     * @remarks
+     * {@link https://www.mongodb.com/docs/manual/reference/command/find/#find-cmd-allowdiskuse | find command allowDiskUse documentation}
+     */
+    allowDiskUse(allow = true) {
+        this.throwIfInitialized();
+        if (!this.findOptions.sort) {
+            throw new error_1.MongoInvalidArgumentError('Option "allowDiskUse" requires a sort specification');
+        }
+        // As of 6.0 the default is true. This allows users to get back to the old behavior.
+        if (!allow) {
+            this.findOptions.allowDiskUse = false;
+            return this;
+        }
+        this.findOptions.allowDiskUse = true;
+        return this;
+    }
+    /**
+     * Set the collation options for the cursor.
+     *
+     * @param value - The cursor collation options (MongoDB 3.4 or higher) settings for update operation (see 3.4 documentation for available fields).
+     */
+    collation(value) {
+        this.throwIfInitialized();
+        this.findOptions.collation = value;
+        return this;
+    }
+    /**
+     * Set the limit for the cursor.
+     *
+     * @param value - The limit for the cursor query.
+     */
+    limit(value) {
+        this.throwIfInitialized();
+        if (this.findOptions.tailable) {
+            throw new error_1.MongoTailableCursorError('Tailable cursor does not support limit');
+        }
+        if (typeof value !== 'number') {
+            throw new error_1.MongoInvalidArgumentError('Operation "limit" requires an integer');
+        }
+        this.findOptions.limit = value;
+        return this;
+    }
+    /**
+     * Set the skip for the cursor.
+     *
+     * @param value - The skip for the cursor query.
+     */
+    skip(value) {
+        this.throwIfInitialized();
+        if (this.findOptions.tailable) {
+            throw new error_1.MongoTailableCursorError('Tailable cursor does not support skip');
+        }
+        if (typeof value !== 'number') {
+            throw new error_1.MongoInvalidArgumentError('Operation "skip" requires an integer');
+        }
+        this.findOptions.skip = value;
+        return this;
+    }
+}
+exports.FindCursor = FindCursor;
+//# sourceMappingURL=find_cursor.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cursor/find_cursor.js.map b/backend/node_modules/mongodb/lib/cursor/find_cursor.js.map
new file mode 100644
index 0000000..dcbb5a1
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cursor/find_cursor.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cursor/list_collections_cursor.js b/backend/node_modules/mongodb/lib/cursor/list_collections_cursor.js
new file mode 100644
index 0000000..992e7d0
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cursor/list_collections_cursor.js
@@ -0,0 +1,33 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ListCollectionsCursor = void 0;
+const execute_operation_1 = require("../operations/execute_operation");
+const list_collections_1 = require("../operations/list_collections");
+const abstract_cursor_1 = require("./abstract_cursor");
+/** @public */
+class ListCollectionsCursor extends abstract_cursor_1.AbstractCursor {
+    constructor(db, filter, options) {
+        super(db.client, db.s.namespace, options);
+        this.parent = db;
+        this.filter = filter;
+        this.options = options;
+    }
+    clone() {
+        return new ListCollectionsCursor(this.parent, this.filter, {
+            ...this.options,
+            ...this.cursorOptions
+        });
+    }
+    /** @internal */
+    async _initialize(session) {
+        const operation = new list_collections_1.ListCollectionsOperation(this.parent, this.filter, {
+            ...this.cursorOptions,
+            ...this.options,
+            session
+        });
+        const response = await (0, execute_operation_1.executeOperation)(this.parent.client, operation, this.timeoutContext);
+        return { server: operation.server, session, response };
+    }
+}
+exports.ListCollectionsCursor = ListCollectionsCursor;
+//# sourceMappingURL=list_collections_cursor.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cursor/list_collections_cursor.js.map b/backend/node_modules/mongodb/lib/cursor/list_collections_cursor.js.map
new file mode 100644
index 0000000..7d578f6
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cursor/list_collections_cursor.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"list_collections_cursor.js","sourceRoot":"","sources":["../../src/cursor/list_collections_cursor.ts"],"names":[],"mappings":";;;AAEA,uEAAmE;AACnE,qEAIwC;AAExC,uDAA+E;AAE/E,cAAc;AACd,MAAa,qBAIX,SAAQ,gCAAiB;IAKzB,YAAY,EAAM,EAAE,MAAgB,EAAE,OAAgC;QACpE,KAAK,CAAC,EAAE,CAAC,MAAM,EAAE,EAAE,CAAC,CAAC,CAAC,SAAS,EAAE,OAAO,CAAC,CAAC;QAC1C,IAAI,CAAC,MAAM,GAAG,EAAE,CAAC;QACjB,IAAI,CAAC,MAAM,GAAG,MAAM,CAAC;QACrB,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;IACzB,CAAC;IAED,KAAK;QACH,OAAO,IAAI,qBAAqB,CAAC,IAAI,CAAC,MAAM,EAAE,IAAI,CAAC,MAAM,EAAE;YACzD,GAAG,IAAI,CAAC,OAAO;YACf,GAAG,IAAI,CAAC,aAAa;SACtB,CAAC,CAAC;IACL,CAAC;IAED,gBAAgB;IAChB,KAAK,CAAC,WAAW,CAAC,OAAkC;QAClD,MAAM,SAAS,GAAG,IAAI,2CAAwB,CAAC,IAAI,CAAC,MAAM,EAAE,IAAI,CAAC,MAAM,EAAE;YACvE,GAAG,IAAI,CAAC,aAAa;YACrB,GAAG,IAAI,CAAC,OAAO;YACf,OAAO;SACR,CAAC,CAAC;QAEH,MAAM,QAAQ,GAAG,MAAM,IAAA,oCAAgB,EAAC,IAAI,CAAC,MAAM,CAAC,MAAM,EAAE,SAAS,EAAE,IAAI,CAAC,cAAc,CAAC,CAAC;QAE5F,OAAO,EAAE,MAAM,EAAE,SAAS,CAAC,MAAM,EAAE,OAAO,EAAE,QAAQ,EAAE,CAAC;IACzD,CAAC;CACF;AAnCD,sDAmCC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cursor/list_indexes_cursor.js b/backend/node_modules/mongodb/lib/cursor/list_indexes_cursor.js
new file mode 100644
index 0000000..a78a7fd
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cursor/list_indexes_cursor.js
@@ -0,0 +1,32 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ListIndexesCursor = void 0;
+const execute_operation_1 = require("../operations/execute_operation");
+const indexes_1 = require("../operations/indexes");
+const abstract_cursor_1 = require("./abstract_cursor");
+/** @public */
+class ListIndexesCursor extends abstract_cursor_1.AbstractCursor {
+    constructor(collection, options) {
+        super(collection.client, collection.s.namespace, options);
+        this.parent = collection;
+        this.options = options;
+    }
+    clone() {
+        return new ListIndexesCursor(this.parent, {
+            ...this.options,
+            ...this.cursorOptions
+        });
+    }
+    /** @internal */
+    async _initialize(session) {
+        const operation = new indexes_1.ListIndexesOperation(this.parent, {
+            ...this.cursorOptions,
+            ...this.options,
+            session
+        });
+        const response = await (0, execute_operation_1.executeOperation)(this.parent.client, operation, this.timeoutContext);
+        return { server: operation.server, session, response };
+    }
+}
+exports.ListIndexesCursor = ListIndexesCursor;
+//# sourceMappingURL=list_indexes_cursor.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cursor/list_indexes_cursor.js.map b/backend/node_modules/mongodb/lib/cursor/list_indexes_cursor.js.map
new file mode 100644
index 0000000..3962b58
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cursor/list_indexes_cursor.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"list_indexes_cursor.js","sourceRoot":"","sources":["../../src/cursor/list_indexes_cursor.ts"],"names":[],"mappings":";;;AACA,uEAAmE;AACnE,mDAAsF;AAEtF,uDAA+E;AAE/E,cAAc;AACd,MAAa,iBAAkB,SAAQ,gCAAc;IAInD,YAAY,UAAsB,EAAE,OAA4B;QAC9D,KAAK,CAAC,UAAU,CAAC,MAAM,EAAE,UAAU,CAAC,CAAC,CAAC,SAAS,EAAE,OAAO,CAAC,CAAC;QAC1D,IAAI,CAAC,MAAM,GAAG,UAAU,CAAC;QACzB,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;IACzB,CAAC;IAED,KAAK;QACH,OAAO,IAAI,iBAAiB,CAAC,IAAI,CAAC,MAAM,EAAE;YACxC,GAAG,IAAI,CAAC,OAAO;YACf,GAAG,IAAI,CAAC,aAAa;SACtB,CAAC,CAAC;IACL,CAAC;IAED,gBAAgB;IAChB,KAAK,CAAC,WAAW,CAAC,OAAkC;QAClD,MAAM,SAAS,GAAG,IAAI,8BAAoB,CAAC,IAAI,CAAC,MAAM,EAAE;YACtD,GAAG,IAAI,CAAC,aAAa;YACrB,GAAG,IAAI,CAAC,OAAO;YACf,OAAO;SACR,CAAC,CAAC;QAEH,MAAM,QAAQ,GAAG,MAAM,IAAA,oCAAgB,EAAC,IAAI,CAAC,MAAM,CAAC,MAAM,EAAE,SAAS,EAAE,IAAI,CAAC,cAAc,CAAC,CAAC;QAE5F,OAAO,EAAE,MAAM,EAAE,SAAS,CAAC,MAAM,EAAE,OAAO,EAAE,QAAQ,EAAE,CAAC;IACzD,CAAC;CACF;AA7BD,8CA6BC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cursor/list_search_indexes_cursor.js b/backend/node_modules/mongodb/lib/cursor/list_search_indexes_cursor.js
new file mode 100644
index 0000000..d9c39c7
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cursor/list_search_indexes_cursor.js
@@ -0,0 +1,14 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ListSearchIndexesCursor = void 0;
+const aggregation_cursor_1 = require("./aggregation_cursor");
+/** @public */
+class ListSearchIndexesCursor extends aggregation_cursor_1.AggregationCursor {
+    /** @internal */
+    constructor({ fullNamespace: ns, client }, name, options = {}) {
+        const pipeline = name == null ? [{ $listSearchIndexes: {} }] : [{ $listSearchIndexes: { name } }];
+        super(client, ns, pipeline, options);
+    }
+}
+exports.ListSearchIndexesCursor = ListSearchIndexesCursor;
+//# sourceMappingURL=list_search_indexes_cursor.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cursor/list_search_indexes_cursor.js.map b/backend/node_modules/mongodb/lib/cursor/list_search_indexes_cursor.js.map
new file mode 100644
index 0000000..6353a21
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cursor/list_search_indexes_cursor.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"list_search_indexes_cursor.js","sourceRoot":"","sources":["../../src/cursor/list_search_indexes_cursor.ts"],"names":[],"mappings":";;;AAEA,6DAAyD;AAKzD,cAAc;AACd,MAAa,uBAAwB,SAAQ,sCAAmC;IAC9E,gBAAgB;IAChB,YACE,EAAE,aAAa,EAAE,EAAE,EAAE,MAAM,EAAc,EACzC,IAAmB,EACnB,UAAoC,EAAE;QAEtC,MAAM,QAAQ,GACZ,IAAI,IAAI,IAAI,CAAC,CAAC,CAAC,CAAC,EAAE,kBAAkB,EAAE,EAAE,EAAE,CAAC,CAAC,CAAC,CAAC,CAAC,EAAE,kBAAkB,EAAE,EAAE,IAAI,EAAE,EAAE,CAAC,CAAC;QACnF,KAAK,CAAC,MAAM,EAAE,EAAE,EAAE,QAAQ,EAAE,OAAO,CAAC,CAAC;IACvC,CAAC;CACF;AAXD,0DAWC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cursor/run_command_cursor.js b/backend/node_modules/mongodb/lib/cursor/run_command_cursor.js
new file mode 100644
index 0000000..83e2ccc
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cursor/run_command_cursor.js
@@ -0,0 +1,93 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.RunCommandCursor = void 0;
+const responses_1 = require("../cmap/wire_protocol/responses");
+const error_1 = require("../error");
+const execute_operation_1 = require("../operations/execute_operation");
+const get_more_1 = require("../operations/get_more");
+const run_command_1 = require("../operations/run_command");
+const utils_1 = require("../utils");
+const abstract_cursor_1 = require("./abstract_cursor");
+/** @public */
+class RunCommandCursor extends abstract_cursor_1.AbstractCursor {
+    /**
+     * Controls the `getMore.comment` field
+     * @param comment - any BSON value
+     */
+    setComment(comment) {
+        this.getMoreOptions.comment = comment;
+        return this;
+    }
+    /**
+     * Controls the `getMore.maxTimeMS` field. Only valid when cursor is tailable await
+     * @param maxTimeMS - the number of milliseconds to wait for new data
+     */
+    setMaxTimeMS(maxTimeMS) {
+        this.getMoreOptions.maxAwaitTimeMS = maxTimeMS;
+        return this;
+    }
+    /**
+     * Controls the `getMore.batchSize` field
+     * @param batchSize - the number documents to return in the `nextBatch`
+     */
+    setBatchSize(batchSize) {
+        this.getMoreOptions.batchSize = batchSize;
+        return this;
+    }
+    /** Unsupported for RunCommandCursor */
+    clone() {
+        throw new error_1.MongoAPIError('Clone not supported, create a new cursor with db.runCursorCommand');
+    }
+    /** Unsupported for RunCommandCursor: readConcern must be configured directly on command document */
+    withReadConcern(_) {
+        throw new error_1.MongoAPIError('RunCommandCursor does not support readConcern it must be attached to the command being run');
+    }
+    /** Unsupported for RunCommandCursor: various cursor flags must be configured directly on command document */
+    addCursorFlag(_, __) {
+        throw new error_1.MongoAPIError('RunCommandCursor does not support cursor flags, they must be attached to the command being run');
+    }
+    /**
+     * Unsupported for RunCommandCursor: maxTimeMS must be configured directly on command document
+     */
+    maxTimeMS(_) {
+        throw new error_1.MongoAPIError('maxTimeMS must be configured on the command document directly, to configure getMore.maxTimeMS use cursor.setMaxTimeMS()');
+    }
+    /** Unsupported for RunCommandCursor: batchSize must be configured directly on command document */
+    batchSize(_) {
+        throw new error_1.MongoAPIError('batchSize must be configured on the command document directly, to configure getMore.batchSize use cursor.setBatchSize()');
+    }
+    /** @internal */
+    constructor(db, command, options = {}) {
+        super(db.client, (0, utils_1.ns)(db.namespace), options);
+        this.getMoreOptions = {};
+        this.db = db;
+        this.command = Object.freeze({ ...command });
+    }
+    /** @internal */
+    async _initialize(session) {
+        const operation = new run_command_1.RunCommandOperation(this.db, this.command, {
+            ...this.cursorOptions,
+            session: session,
+            readPreference: this.cursorOptions.readPreference,
+            responseType: responses_1.CursorResponse
+        });
+        const response = await (0, execute_operation_1.executeOperation)(this.client, operation, this.timeoutContext);
+        return {
+            server: operation.server,
+            session,
+            response
+        };
+    }
+    /** @internal */
+    async getMore(_batchSize) {
+        // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+        const getMoreOperation = new get_more_1.GetMoreOperation(this.namespace, this.id, this.server, {
+            ...this.cursorOptions,
+            session: this.session,
+            ...this.getMoreOptions
+        });
+        return await (0, execute_operation_1.executeOperation)(this.client, getMoreOperation, this.timeoutContext);
+    }
+}
+exports.RunCommandCursor = RunCommandCursor;
+//# sourceMappingURL=run_command_cursor.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/cursor/run_command_cursor.js.map b/backend/node_modules/mongodb/lib/cursor/run_command_cursor.js.map
new file mode 100644
index 0000000..cd5d759
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/cursor/run_command_cursor.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"run_command_cursor.js","sourceRoot":"","sources":["../../src/cursor/run_command_cursor.ts"],"names":[],"mappings":";;;AACA,+DAAiE;AAEjE,oCAAyC;AACzC,uEAAmE;AACnE,qDAA0D;AAC1D,2DAAgE;AAIhE,oCAA8B;AAC9B,uDAI2B;AA+C3B,cAAc;AACd,MAAa,gBAAiB,SAAQ,gCAAc;IAQlD;;;OAGG;IACI,UAAU,CAAC,OAAY;QAC5B,IAAI,CAAC,cAAc,CAAC,OAAO,GAAG,OAAO,CAAC;QACtC,OAAO,IAAI,CAAC;IACd,CAAC;IAED;;;OAGG;IACI,YAAY,CAAC,SAAiB;QACnC,IAAI,CAAC,cAAc,CAAC,cAAc,GAAG,SAAS,CAAC;QAC/C,OAAO,IAAI,CAAC;IACd,CAAC;IAED;;;OAGG;IACI,YAAY,CAAC,SAAiB;QACnC,IAAI,CAAC,cAAc,CAAC,SAAS,GAAG,SAAS,CAAC;QAC1C,OAAO,IAAI,CAAC;IACd,CAAC;IAED,uCAAuC;IACvB,KAAK;QACnB,MAAM,IAAI,qBAAa,CAAC,mEAAmE,CAAC,CAAC;IAC/F,CAAC;IAED,oGAAoG;IACpF,eAAe,CAAC,CAAkB;QAChD,MAAM,IAAI,qBAAa,CACrB,4FAA4F,CAC7F,CAAC;IACJ,CAAC;IAED,6GAA6G;IAC7F,aAAa,CAAC,CAAS,EAAE,EAAW;QAClD,MAAM,IAAI,qBAAa,CACrB,gGAAgG,CACjG,CAAC;IACJ,CAAC;IAED;;OAEG;IACa,SAAS,CAAC,CAAS;QACjC,MAAM,IAAI,qBAAa,CACrB,yHAAyH,CAC1H,CAAC;IACJ,CAAC;IAED,kGAAkG;IAClF,SAAS,CAAC,CAAS;QACjC,MAAM,IAAI,qBAAa,CACrB,yHAAyH,CAC1H,CAAC;IACJ,CAAC;IAKD,gBAAgB;IAChB,YAAY,EAAM,EAAE,OAAiB,EAAE,UAAmC,EAAE;QAC1E,KAAK,CAAC,EAAE,CAAC,MAAM,EAAE,IAAA,UAAE,EAAC,EAAE,CAAC,SAAS,CAAC,EAAE,OAAO,CAAC,CAAC;QAzE9B,mBAAc,GAI1B,EAAE,CAAC;QAsEL,IAAI,CAAC,EAAE,GAAG,EAAE,CAAC;QACb,IAAI,CAAC,OAAO,GAAG,MAAM,CAAC,MAAM,CAAC,EAAE,GAAG,OAAO,EAAE,CAAC,CAAC;IAC/C,CAAC;IAED,gBAAgB;IACN,KAAK,CAAC,WAAW,CAAC,OAAsB;QAChD,MAAM,SAAS,GAAG,IAAI,iCAAmB,CAAiB,IAAI,CAAC,EAAE,EAAE,IAAI,CAAC,OAAO,EAAE;YAC/E,GAAG,IAAI,CAAC,aAAa;YACrB,OAAO,EAAE,OAAO;YAChB,cAAc,EAAE,IAAI,CAAC,aAAa,CAAC,cAAc;YACjD,YAAY,EAAE,0BAAc;SAC7B,CAAC,CAAC;QAEH,MAAM,QAAQ,GAAG,MAAM,IAAA,oCAAgB,EAAC,IAAI,CAAC,MAAM,EAAE,SAAS,EAAE,IAAI,CAAC,cAAc,CAAC,CAAC;QAErF,OAAO;YACL,MAAM,EAAE,SAAS,CAAC,MAAM;YACxB,OAAO;YACP,QAAQ;SACT,CAAC;IACJ,CAAC;IAED,gBAAgB;IACP,KAAK,CAAC,OAAO,CAAC,UAAkB;QACvC,oEAAoE;QACpE,MAAM,gBAAgB,GAAG,IAAI,2BAAgB,CAAC,IAAI,CAAC,SAAS,EAAE,IAAI,CAAC,EAAG,EAAE,IAAI,CAAC,MAAO,EAAE;YACpF,GAAG,IAAI,CAAC,aAAa;YACrB,OAAO,EAAE,IAAI,CAAC,OAAO;YACrB,GAAG,IAAI,CAAC,cAAc;SACvB,CAAC,CAAC;QAEH,OAAO,MAAM,IAAA,oCAAgB,EAAC,IAAI,CAAC,MAAM,EAAE,gBAAgB,EAAE,IAAI,CAAC,cAAc,CAAC,CAAC;IACpF,CAAC;CACF;AA7GD,4CA6GC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/db.js b/backend/node_modules/mongodb/lib/db.js
new file mode 100644
index 0000000..a0d9171
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/db.js
@@ -0,0 +1,412 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Db = void 0;
+const admin_1 = require("./admin");
+const bson_1 = require("./bson");
+const change_stream_1 = require("./change_stream");
+const collection_1 = require("./collection");
+const CONSTANTS = require("./constants");
+const aggregation_cursor_1 = require("./cursor/aggregation_cursor");
+const list_collections_cursor_1 = require("./cursor/list_collections_cursor");
+const run_command_cursor_1 = require("./cursor/run_command_cursor");
+const error_1 = require("./error");
+const collections_1 = require("./operations/collections");
+const create_collection_1 = require("./operations/create_collection");
+const drop_1 = require("./operations/drop");
+const execute_operation_1 = require("./operations/execute_operation");
+const indexes_1 = require("./operations/indexes");
+const profiling_level_1 = require("./operations/profiling_level");
+const remove_user_1 = require("./operations/remove_user");
+const rename_1 = require("./operations/rename");
+const run_command_1 = require("./operations/run_command");
+const set_profiling_level_1 = require("./operations/set_profiling_level");
+const stats_1 = require("./operations/stats");
+const read_concern_1 = require("./read_concern");
+const read_preference_1 = require("./read_preference");
+const utils_1 = require("./utils");
+const write_concern_1 = require("./write_concern");
+// Allowed parameters
+const DB_OPTIONS_ALLOW_LIST = [
+    'writeConcern',
+    'readPreference',
+    'readPreferenceTags',
+    'native_parser',
+    'forceServerObjectId',
+    'pkFactory',
+    'serializeFunctions',
+    'raw',
+    'authSource',
+    'ignoreUndefined',
+    'readConcern',
+    'retryMiliSeconds',
+    'numberOfRetries',
+    'useBigInt64',
+    'promoteBuffers',
+    'promoteLongs',
+    'bsonRegExp',
+    'enableUtf8Validation',
+    'promoteValues',
+    'compression',
+    'retryWrites',
+    'timeoutMS'
+];
+/**
+ * The **Db** class is a class that represents a MongoDB Database.
+ * @public
+ *
+ * @example
+ * ```ts
+ * import { MongoClient } from 'mongodb';
+ *
+ * interface Pet {
+ *   name: string;
+ *   kind: 'dog' | 'cat' | 'fish';
+ * }
+ *
+ * const client = new MongoClient('mongodb://localhost:27017');
+ * const db = client.db();
+ *
+ * // Create a collection that validates our union
+ * await db.createCollection<Pet>('pets', {
+ *   validator: { $expr: { $in: ['$kind', ['dog', 'cat', 'fish']] } }
+ * })
+ * ```
+ */
+class Db {
+    /**
+     * Creates a new Db instance.
+     *
+     * Db name cannot contain a dot, the server may apply more restrictions when an operation is run.
+     *
+     * @param client - The MongoClient for the database.
+     * @param databaseName - The name of the database this instance represents.
+     * @param options - Optional settings for Db construction.
+     */
+    constructor(client, databaseName, options) {
+        options = options ?? {};
+        // Filter the options
+        options = (0, utils_1.filterOptions)(options, DB_OPTIONS_ALLOW_LIST);
+        // Ensure there are no dots in database name
+        if (typeof databaseName === 'string' && databaseName.includes('.')) {
+            throw new error_1.MongoInvalidArgumentError(`Database names cannot contain the character '.'`);
+        }
+        // Internal state of the db object
+        this.s = {
+            // Options
+            options,
+            // Unpack read preference
+            readPreference: read_preference_1.ReadPreference.fromOptions(options),
+            // Merge bson options
+            bsonOptions: (0, bson_1.resolveBSONOptions)(options, client),
+            // Set up the primary key factory or fallback to ObjectId
+            pkFactory: options?.pkFactory ?? utils_1.DEFAULT_PK_FACTORY,
+            // ReadConcern
+            readConcern: read_concern_1.ReadConcern.fromOptions(options),
+            writeConcern: write_concern_1.WriteConcern.fromOptions(options),
+            // Namespace
+            namespace: new utils_1.MongoDBNamespace(databaseName)
+        };
+        this.client = client;
+    }
+    get databaseName() {
+        return this.s.namespace.db;
+    }
+    // Options
+    get options() {
+        return this.s.options;
+    }
+    /**
+     * Check if a secondary can be used (because the read preference is *not* set to primary)
+     */
+    get secondaryOk() {
+        return this.s.readPreference?.preference !== 'primary' || false;
+    }
+    get readConcern() {
+        return this.s.readConcern;
+    }
+    /**
+     * The current readPreference of the Db. If not explicitly defined for
+     * this Db, will be inherited from the parent MongoClient
+     */
+    get readPreference() {
+        if (this.s.readPreference == null) {
+            return this.client.readPreference;
+        }
+        return this.s.readPreference;
+    }
+    get bsonOptions() {
+        return this.s.bsonOptions;
+    }
+    // get the write Concern
+    get writeConcern() {
+        return this.s.writeConcern;
+    }
+    get namespace() {
+        return this.s.namespace.toString();
+    }
+    get timeoutMS() {
+        return this.s.options?.timeoutMS;
+    }
+    /**
+     * Create a new collection on a server with the specified options. Use this to create capped collections.
+     * More information about command options available at https://www.mongodb.com/docs/manual/reference/command/create/
+     *
+     * Collection namespace validation is performed server-side.
+     *
+     * @param name - The name of the collection to create
+     * @param options - Optional settings for the command
+     */
+    async createCollection(name, options) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new create_collection_1.CreateCollectionOperation(this, name, (0, utils_1.resolveOptions)(this, options)));
+    }
+    /**
+     * Execute a command
+     *
+     * @remarks
+     * This command does not inherit options from the MongoClient.
+     *
+     * The driver will ensure the following fields are attached to the command sent to the server:
+     * - `lsid` - sourced from an implicit session or options.session
+     * - `$readPreference` - defaults to primary or can be configured by options.readPreference
+     * - `$db` - sourced from the name of this database
+     *
+     * If the client has a serverApi setting:
+     * - `apiVersion`
+     * - `apiStrict`
+     * - `apiDeprecationErrors`
+     *
+     * When in a transaction:
+     * - `readConcern` - sourced from readConcern set on the TransactionOptions
+     * - `writeConcern` - sourced from writeConcern set on the TransactionOptions
+     *
+     * Attaching any of the above fields to the command will have no effect as the driver will overwrite the value.
+     *
+     * @param command - The command to run
+     * @param options - Optional settings for the command
+     */
+    async command(command, options) {
+        // Intentionally, we do not inherit options from parent for this operation.
+        return await (0, execute_operation_1.executeOperation)(this.client, new run_command_1.RunCommandOperation(this, command, (0, utils_1.resolveOptions)(undefined, {
+            ...(0, bson_1.resolveBSONOptions)(options),
+            timeoutMS: options?.timeoutMS ?? this.timeoutMS,
+            session: options?.session,
+            readPreference: options?.readPreference
+        })));
+    }
+    /**
+     * Execute an aggregation framework pipeline against the database.
+     *
+     * @param pipeline - An array of aggregation stages to be executed
+     * @param options - Optional settings for the command
+     */
+    aggregate(pipeline = [], options) {
+        return new aggregation_cursor_1.AggregationCursor(this.client, this.s.namespace, pipeline, (0, utils_1.resolveOptions)(this, options));
+    }
+    /** Return the Admin db instance */
+    admin() {
+        return new admin_1.Admin(this);
+    }
+    /**
+     * Returns a reference to a MongoDB Collection. If it does not exist it will be created implicitly.
+     *
+     * Collection namespace validation is performed server-side.
+     *
+     * @param name - the collection name we wish to access.
+     * @returns return the new Collection instance
+     */
+    collection(name, options = {}) {
+        if (typeof options === 'function') {
+            throw new error_1.MongoInvalidArgumentError('The callback form of this helper has been removed.');
+        }
+        return new collection_1.Collection(this, name, (0, utils_1.resolveOptions)(this, options));
+    }
+    /**
+     * Get all the db statistics.
+     *
+     * @param options - Optional settings for the command
+     */
+    async stats(options) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new stats_1.DbStatsOperation(this, (0, utils_1.resolveOptions)(this, options)));
+    }
+    listCollections(filter = {}, options = {}) {
+        return new list_collections_cursor_1.ListCollectionsCursor(this, filter, (0, utils_1.resolveOptions)(this, options));
+    }
+    /**
+     * Rename a collection.
+     *
+     * @remarks
+     * This operation does not inherit options from the MongoClient.
+     *
+     * @param fromCollection - Name of current collection to rename
+     * @param toCollection - New name of of the collection
+     * @param options - Optional settings for the command
+     */
+    async renameCollection(fromCollection, toCollection, options) {
+        // Intentionally, we do not inherit options from parent for this operation.
+        return await (0, execute_operation_1.executeOperation)(this.client, new rename_1.RenameOperation(this.collection(fromCollection), toCollection, (0, utils_1.resolveOptions)(undefined, {
+            ...options,
+            new_collection: true,
+            readPreference: read_preference_1.ReadPreference.primary
+        })));
+    }
+    /**
+     * Drop a collection from the database, removing it permanently. New accesses will create a new collection.
+     *
+     * @param name - Name of collection to drop
+     * @param options - Optional settings for the command
+     */
+    async dropCollection(name, options) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new drop_1.DropCollectionOperation(this, name, (0, utils_1.resolveOptions)(this, options)));
+    }
+    /**
+     * Drop a database, removing it permanently from the server.
+     *
+     * @param options - Optional settings for the command
+     */
+    async dropDatabase(options) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new drop_1.DropDatabaseOperation(this, (0, utils_1.resolveOptions)(this, options)));
+    }
+    /**
+     * Fetch all collections for the current db.
+     *
+     * @param options - Optional settings for the command
+     */
+    async collections(options) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new collections_1.CollectionsOperation(this, (0, utils_1.resolveOptions)(this, options)));
+    }
+    /**
+     * Creates an index on the db and collection.
+     *
+     * @param name - Name of the collection to create the index on.
+     * @param indexSpec - Specify the field to index, or an index specification
+     * @param options - Optional settings for the command
+     */
+    async createIndex(name, indexSpec, options) {
+        const indexes = await (0, execute_operation_1.executeOperation)(this.client, indexes_1.CreateIndexesOperation.fromIndexSpecification(this, name, indexSpec, options));
+        return indexes[0];
+    }
+    /**
+     * Remove a user from a database
+     *
+     * @param username - The username to remove
+     * @param options - Optional settings for the command
+     */
+    async removeUser(username, options) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new remove_user_1.RemoveUserOperation(this, username, (0, utils_1.resolveOptions)(this, options)));
+    }
+    /**
+     * Set the current profiling level of MongoDB
+     *
+     * @param level - The new profiling level (off, slow_only, all).
+     * @param options - Optional settings for the command
+     */
+    async setProfilingLevel(level, options) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new set_profiling_level_1.SetProfilingLevelOperation(this, level, (0, utils_1.resolveOptions)(this, options)));
+    }
+    /**
+     * Retrieve the current profiling Level for MongoDB
+     *
+     * @param options - Optional settings for the command
+     */
+    async profilingLevel(options) {
+        return await (0, execute_operation_1.executeOperation)(this.client, new profiling_level_1.ProfilingLevelOperation(this, (0, utils_1.resolveOptions)(this, options)));
+    }
+    async indexInformation(name, options) {
+        return await this.collection(name).indexInformation((0, utils_1.resolveOptions)(this, options));
+    }
+    /**
+     * Create a new Change Stream, watching for new changes (insertions, updates,
+     * replacements, deletions, and invalidations) in this database. Will ignore all
+     * changes to system collections.
+     *
+     * @remarks
+     * watch() accepts two generic arguments for distinct use cases:
+     * - The first is to provide the schema that may be defined for all the collections within this database
+     * - The second is to override the shape of the change stream document entirely, if it is not provided the type will default to ChangeStreamDocument of the first argument
+     *
+     * @remarks
+     * When `timeoutMS` is configured for a change stream, it will have different behaviour depending
+     * on whether the change stream is in iterator mode or emitter mode. In both cases, a change
+     * stream will time out if it does not receive a change event within `timeoutMS` of the last change
+     * event.
+     *
+     * Note that if a change stream is consistently timing out when watching a collection, database or
+     * client that is being changed, then this may be due to the server timing out before it can finish
+     * processing the existing oplog. To address this, restart the change stream with a higher
+     * `timeoutMS`.
+     *
+     * If the change stream times out the initial aggregate operation to establish the change stream on
+     * the server, then the client will close the change stream. If the getMore calls to the server
+     * time out, then the change stream will be left open, but will throw a MongoOperationTimeoutError
+     * when in iterator mode and emit an error event that returns a MongoOperationTimeoutError in
+     * emitter mode.
+     *
+     * To determine whether or not the change stream is still open following a timeout, check the
+     * {@link ChangeStream.closed} getter.
+     *
+     * @example
+     * In iterator mode, if a next() call throws a timeout error, it will attempt to resume the change stream.
+     * The next call can just be retried after this succeeds.
+     * ```ts
+     * const changeStream = collection.watch([], { timeoutMS: 100 });
+     * try {
+     *     await changeStream.next();
+     * } catch (e) {
+     *     if (e instanceof MongoOperationTimeoutError && !changeStream.closed) {
+     *       await changeStream.next();
+     *     }
+     *     throw e;
+     * }
+     * ```
+     *
+     * @example
+     * In emitter mode, if the change stream goes `timeoutMS` without emitting a change event, it will
+     * emit an error event that returns a MongoOperationTimeoutError, but will not close the change
+     * stream unless the resume attempt fails. There is no need to re-establish change listeners as
+     * this will automatically continue emitting change events once the resume attempt completes.
+     *
+     * ```ts
+     * const changeStream = collection.watch([], { timeoutMS: 100 });
+     * changeStream.on('change', console.log);
+     * changeStream.on('error', e => {
+     *     if (e instanceof MongoOperationTimeoutError && !changeStream.closed) {
+     *         // do nothing
+     *     } else {
+     *         changeStream.close();
+     *     }
+     * });
+     * ```
+     * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents. This allows for filtering (using $match) and manipulating the change stream documents.
+     * @param options - Optional settings for the command
+     * @typeParam TSchema - Type of the data being detected by the change stream
+     * @typeParam TChange - Type of the whole change stream document emitted
+     */
+    watch(pipeline = [], options = {}) {
+        // Allow optionally not specifying a pipeline
+        if (!Array.isArray(pipeline)) {
+            options = pipeline;
+            pipeline = [];
+        }
+        return new change_stream_1.ChangeStream(this, pipeline, (0, utils_1.resolveOptions)(this, options));
+    }
+    /**
+     * A low level cursor API providing basic driver functionality:
+     * - ClientSession management
+     * - ReadPreference for server selection
+     * - Running getMores automatically when a local batch is exhausted
+     *
+     * @param command - The command that will start a cursor on the server.
+     * @param options - Configurations for running the command, bson options will apply to getMores
+     */
+    runCursorCommand(command, options) {
+        return new run_command_cursor_1.RunCommandCursor(this, command, options);
+    }
+}
+exports.Db = Db;
+Db.SYSTEM_NAMESPACE_COLLECTION = CONSTANTS.SYSTEM_NAMESPACE_COLLECTION;
+Db.SYSTEM_INDEX_COLLECTION = CONSTANTS.SYSTEM_INDEX_COLLECTION;
+Db.SYSTEM_PROFILE_COLLECTION = CONSTANTS.SYSTEM_PROFILE_COLLECTION;
+Db.SYSTEM_USER_COLLECTION = CONSTANTS.SYSTEM_USER_COLLECTION;
+Db.SYSTEM_COMMAND_COLLECTION = CONSTANTS.SYSTEM_COMMAND_COLLECTION;
+Db.SYSTEM_JS_COLLECTION = CONSTANTS.SYSTEM_JS_COLLECTION;
+//# sourceMappingURL=db.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/db.js.map b/backend/node_modules/mongodb/lib/db.js.map
new file mode 100644
index 0000000..3135697
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/db.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/deps.js b/backend/node_modules/mongodb/lib/deps.js
new file mode 100644
index 0000000..4ee6554
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/deps.js
@@ -0,0 +1,125 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.aws4 = void 0;
+exports.getKerberos = getKerberos;
+exports.getZstdLibrary = getZstdLibrary;
+exports.getAwsCredentialProvider = getAwsCredentialProvider;
+exports.getGcpMetadata = getGcpMetadata;
+exports.getSnappy = getSnappy;
+exports.getSocks = getSocks;
+exports.getMongoDBClientEncryption = getMongoDBClientEncryption;
+const error_1 = require("./error");
+function makeErrorModule(error) {
+    const props = error ? { kModuleError: error } : {};
+    return new Proxy(props, {
+        get: (_, key) => {
+            if (key === 'kModuleError') {
+                return error;
+            }
+            throw error;
+        },
+        set: () => {
+            throw error;
+        }
+    });
+}
+function getKerberos() {
+    let kerberos;
+    try {
+        // Ensure you always wrap an optional require in the try block NODE-3199
+        // eslint-disable-next-line @typescript-eslint/no-require-imports
+        kerberos = require('kerberos');
+    }
+    catch (error) {
+        kerberos = makeErrorModule(new error_1.MongoMissingDependencyError('Optional module `kerberos` not found. Please install it to enable kerberos authentication', { cause: error, dependencyName: 'kerberos' }));
+    }
+    return kerberos;
+}
+function getZstdLibrary() {
+    let ZStandard;
+    try {
+        // eslint-disable-next-line @typescript-eslint/no-require-imports
+        ZStandard = require('@mongodb-js/zstd');
+    }
+    catch (error) {
+        ZStandard = makeErrorModule(new error_1.MongoMissingDependencyError('Optional module `@mongodb-js/zstd` not found. Please install it to enable zstd compression', { cause: error, dependencyName: 'zstd' }));
+    }
+    return ZStandard;
+}
+function getAwsCredentialProvider() {
+    try {
+        // Ensure you always wrap an optional require in the try block NODE-3199
+        // eslint-disable-next-line @typescript-eslint/no-require-imports
+        const credentialProvider = require('@aws-sdk/credential-providers');
+        return credentialProvider;
+    }
+    catch (error) {
+        return makeErrorModule(new error_1.MongoMissingDependencyError('Optional module `@aws-sdk/credential-providers` not found.' +
+            ' Please install it to enable getting aws credentials via the official sdk.', { cause: error, dependencyName: '@aws-sdk/credential-providers' }));
+    }
+}
+function getGcpMetadata() {
+    try {
+        // Ensure you always wrap an optional require in the try block NODE-3199
+        // eslint-disable-next-line @typescript-eslint/no-require-imports
+        const credentialProvider = require('gcp-metadata');
+        return credentialProvider;
+    }
+    catch (error) {
+        return makeErrorModule(new error_1.MongoMissingDependencyError('Optional module `gcp-metadata` not found.' +
+            ' Please install it to enable getting gcp credentials via the official sdk.', { cause: error, dependencyName: 'gcp-metadata' }));
+    }
+}
+function getSnappy() {
+    try {
+        // Ensure you always wrap an optional require in the try block NODE-3199
+        // eslint-disable-next-line @typescript-eslint/no-require-imports
+        const value = require('snappy');
+        return value;
+    }
+    catch (error) {
+        const kModuleError = new error_1.MongoMissingDependencyError('Optional module `snappy` not found. Please install it to enable snappy compression', { cause: error, dependencyName: 'snappy' });
+        return { kModuleError };
+    }
+}
+function getSocks() {
+    try {
+        // Ensure you always wrap an optional require in the try block NODE-3199
+        // eslint-disable-next-line @typescript-eslint/no-require-imports
+        const value = require('socks');
+        return value;
+    }
+    catch (error) {
+        const kModuleError = new error_1.MongoMissingDependencyError('Optional module `socks` not found. Please install it to connections over a SOCKS5 proxy', { cause: error, dependencyName: 'socks' });
+        return { kModuleError };
+    }
+}
+exports.aws4 = loadAws4();
+function loadAws4() {
+    let aws4;
+    try {
+        // eslint-disable-next-line @typescript-eslint/no-require-imports
+        aws4 = require('aws4');
+    }
+    catch (error) {
+        aws4 = makeErrorModule(new error_1.MongoMissingDependencyError('Optional module `aws4` not found. Please install it to enable AWS authentication', { cause: error, dependencyName: 'aws4' }));
+    }
+    return aws4;
+}
+/** A utility function to get the instance of mongodb-client-encryption, if it exists. */
+function getMongoDBClientEncryption() {
+    let mongodbClientEncryption = null;
+    try {
+        // NOTE(NODE-3199): Ensure you always wrap an optional require literally in the try block
+        // Cannot be moved to helper utility function, bundlers search and replace the actual require call
+        // in a way that makes this line throw at bundle time, not runtime, catching here will make bundling succeed
+        // eslint-disable-next-line @typescript-eslint/no-require-imports
+        mongodbClientEncryption = require('mongodb-client-encryption');
+    }
+    catch (error) {
+        const kModuleError = new error_1.MongoMissingDependencyError('Optional module `mongodb-client-encryption` not found. Please install it to use auto encryption or ClientEncryption.', { cause: error, dependencyName: 'mongodb-client-encryption' });
+        return { kModuleError };
+    }
+    return mongodbClientEncryption;
+}
+//# sourceMappingURL=deps.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/deps.js.map b/backend/node_modules/mongodb/lib/deps.js.map
new file mode 100644
index 0000000..75b41a5
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/deps.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"deps.js","sourceRoot":"","sources":["../src/deps.ts"],"names":[],"mappings":";;;AAqBA,kCAeC;AA0BD,wCAeC;AAsBD,4DAiBC;AAOD,wCAeC;AAiBD,8BAaC;AAsBD,4BAaC;AA+DD,gEAoBC;AA7RD,mCAAsD;AAGtD,SAAS,eAAe,CAAC,KAAU;IACjC,MAAM,KAAK,GAAG,KAAK,CAAC,CAAC,CAAC,EAAE,YAAY,EAAE,KAAK,EAAE,CAAC,CAAC,CAAC,EAAE,CAAC;IACnD,OAAO,IAAI,KAAK,CAAC,KAAK,EAAE;QACtB,GAAG,EAAE,CAAC,CAAM,EAAE,GAAQ,EAAE,EAAE;YACxB,IAAI,GAAG,KAAK,cAAc,EAAE,CAAC;gBAC3B,OAAO,KAAK,CAAC;YACf,CAAC;YACD,MAAM,KAAK,CAAC;QACd,CAAC;QACD,GAAG,EAAE,GAAG,EAAE;YACR,MAAM,KAAK,CAAC;QACd,CAAC;KACF,CAAC,CAAC;AACL,CAAC;AAID,SAAgB,WAAW;IACzB,IAAI,QAAkB,CAAC;IACvB,IAAI,CAAC;QACH,wEAAwE;QACxE,iEAAiE;QACjE,QAAQ,GAAG,OAAO,CAAC,UAAU,CAAC,CAAC;IACjC,CAAC;IAAC,OAAO,KAAK,EAAE,CAAC;QACf,QAAQ,GAAG,eAAe,CACxB,IAAI,mCAA2B,CAC7B,2FAA2F,EAC3F,EAAE,KAAK,EAAE,KAAK,EAAE,cAAc,EAAE,UAAU,EAAE,CAC7C,CACF,CAAC;IACJ,CAAC;IACD,OAAO,QAAQ,CAAC;AAClB,CAAC;AA0BD,SAAgB,cAAc;IAC5B,IAAI,SAAuE,CAAC;IAC5E,IAAI,CAAC;QACH,iEAAiE;QACjE,SAAS,GAAG,OAAO,CAAC,kBAAkB,CAAC,CAAC;IAC1C,CAAC;IAAC,OAAO,KAAK,EAAE,CAAC;QACf,SAAS,GAAG,eAAe,CACzB,IAAI,mCAA2B,CAC7B,4FAA4F,EAC5F,EAAE,KAAK,EAAE,KAAK,EAAE,cAAc,EAAE,MAAM,EAAE,CACzC,CACF,CAAC;IACJ,CAAC;IAED,OAAO,SAAS,CAAC;AACnB,CAAC;AAsBD,SAAgB,wBAAwB;IAGtC,IAAI,CAAC;QACH,wEAAwE;QACxE,iEAAiE;QACjE,MAAM,kBAAkB,GAAG,OAAO,CAAC,+BAA+B,CAAC,CAAC;QACpE,OAAO,kBAAkB,CAAC;IAC5B,CAAC;IAAC,OAAO,KAAK,EAAE,CAAC;QACf,OAAO,eAAe,CACpB,IAAI,mCAA2B,CAC7B,4DAA4D;YAC1D,4EAA4E,EAC9E,EAAE,KAAK,EAAE,KAAK,EAAE,cAAc,EAAE,+BAA+B,EAAE,CAClE,CACF,CAAC;IACJ,CAAC;AACH,CAAC;AAOD,SAAgB,cAAc;IAC5B,IAAI,CAAC;QACH,wEAAwE;QACxE,iEAAiE;QACjE,MAAM,kBAAkB,GAAG,OAAO,CAAC,cAAc,CAAC,CAAC;QACnD,OAAO,kBAAkB,CAAC;IAC5B,CAAC;IAAC,OAAO,KAAK,EAAE,CAAC;QACf,OAAO,eAAe,CACpB,IAAI,mCAA2B,CAC7B,2CAA2C;YACzC,4EAA4E,EAC9E,EAAE,KAAK,EAAE,KAAK,EAAE,cAAc,EAAE,cAAc,EAAE,CACjD,CACF,CAAC;IACJ,CAAC;AACH,CAAC;AAiBD,SAAgB,SAAS;IACvB,IAAI,CAAC;QACH,wEAAwE;QACxE,iEAAiE;QACjE,MAAM,KAAK,GAAG,OAAO,CAAC,QAAQ,CAAC,CAAC;QAChC,OAAO,KAAK,CAAC;IACf,CAAC;IAAC,OAAO,KAAK,EAAE,CAAC;QACf,MAAM,YAAY,GAAG,IAAI,mCAA2B,CAClD,oFAAoF,EACpF,EAAE,KAAK,EAAE,KAAK,EAAE,cAAc,EAAE,QAAQ,EAAE,CAC3C,CAAC;QACF,OAAO,EAAE,YAAY,EAAE,CAAC;IAC1B,CAAC;AACH,CAAC;AAsBD,SAAgB,QAAQ;IACtB,IAAI,CAAC;QACH,wEAAwE;QACxE,iEAAiE;QACjE,MAAM,KAAK,GAAG,OAAO,CAAC,OAAO,CAAC,CAAC;QAC/B,OAAO,KAAK,CAAC;IACf,CAAC;IAAC,OAAO,KAAK,EAAE,CAAC;QACf,MAAM,YAAY,GAAG,IAAI,mCAA2B,CAClD,yFAAyF,EACzF,EAAE,KAAK,EAAE,KAAK,EAAE,cAAc,EAAE,OAAO,EAAE,CAC1C,CAAC;QACF,OAAO,EAAE,YAAY,EAAE,CAAC;IAC1B,CAAC;AACH,CAAC;AA2CY,QAAA,IAAI,GAAyD,QAAQ,EAAE,CAAC;AAErF,SAAS,QAAQ;IACf,IAAI,IAA0D,CAAC;IAC/D,IAAI,CAAC;QACH,iEAAiE;QACjE,IAAI,GAAG,OAAO,CAAC,MAAM,CAAC,CAAC;IACzB,CAAC;IAAC,OAAO,KAAK,EAAE,CAAC;QACf,IAAI,GAAG,eAAe,CACpB,IAAI,mCAA2B,CAC7B,kFAAkF,EAClF,EAAE,KAAK,EAAE,KAAK,EAAE,cAAc,EAAE,MAAM,EAAE,CACzC,CACF,CAAC;IACJ,CAAC;IAED,OAAO,IAAI,CAAC;AACd,CAAC;AAED,yFAAyF;AACzF,SAAgB,0BAA0B;IAGxC,IAAI,uBAAuB,GAAG,IAAI,CAAC;IAEnC,IAAI,CAAC;QACH,yFAAyF;QACzF,kGAAkG;QAClG,4GAA4G;QAC5G,iEAAiE;QACjE,uBAAuB,GAAG,OAAO,CAAC,2BAA2B,CAAC,CAAC;IACjE,CAAC;IAAC,OAAO,KAAK,EAAE,CAAC;QACf,MAAM,YAAY,GAAG,IAAI,mCAA2B,CAClD,sHAAsH,EACtH,EAAE,KAAK,EAAE,KAAK,EAAE,cAAc,EAAE,2BAA2B,EAAE,CAC9D,CAAC;QACF,OAAO,EAAE,YAAY,EAAE,CAAC;IAC1B,CAAC;IAED,OAAO,uBAAuB,CAAC;AACjC,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/encrypter.js b/backend/node_modules/mongodb/lib/encrypter.js
new file mode 100644
index 0000000..a616379
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/encrypter.js
@@ -0,0 +1,114 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Encrypter = void 0;
+const util_1 = require("util");
+const auto_encrypter_1 = require("./client-side-encryption/auto_encrypter");
+const constants_1 = require("./constants");
+const deps_1 = require("./deps");
+const error_1 = require("./error");
+const mongo_client_1 = require("./mongo_client");
+/** @internal */
+const kInternalClient = Symbol('internalClient');
+/** @internal */
+class Encrypter {
+    constructor(client, uri, options) {
+        if (typeof options.autoEncryption !== 'object') {
+            throw new error_1.MongoInvalidArgumentError('Option "autoEncryption" must be specified');
+        }
+        // initialize to null, if we call getInternalClient, we may set this it is important to not overwrite those function calls.
+        this[kInternalClient] = null;
+        this.bypassAutoEncryption = !!options.autoEncryption.bypassAutoEncryption;
+        this.needsConnecting = false;
+        if (options.maxPoolSize === 0 && options.autoEncryption.keyVaultClient == null) {
+            options.autoEncryption.keyVaultClient = client;
+        }
+        else if (options.autoEncryption.keyVaultClient == null) {
+            options.autoEncryption.keyVaultClient = this.getInternalClient(client, uri, options);
+        }
+        if (this.bypassAutoEncryption) {
+            options.autoEncryption.metadataClient = undefined;
+        }
+        else if (options.maxPoolSize === 0) {
+            options.autoEncryption.metadataClient = client;
+        }
+        else {
+            options.autoEncryption.metadataClient = this.getInternalClient(client, uri, options);
+        }
+        if (options.proxyHost) {
+            options.autoEncryption.proxyOptions = {
+                proxyHost: options.proxyHost,
+                proxyPort: options.proxyPort,
+                proxyUsername: options.proxyUsername,
+                proxyPassword: options.proxyPassword
+            };
+        }
+        this.autoEncrypter = new auto_encrypter_1.AutoEncrypter(client, options.autoEncryption);
+    }
+    getInternalClient(client, uri, options) {
+        // TODO(NODE-4144): Remove new variable for type narrowing
+        let internalClient = this[kInternalClient];
+        if (internalClient == null) {
+            const clonedOptions = {};
+            for (const key of [
+                ...Object.getOwnPropertyNames(options),
+                ...Object.getOwnPropertySymbols(options)
+            ]) {
+                if (['autoEncryption', 'minPoolSize', 'servers', 'caseTranslate', 'dbName'].includes(key))
+                    continue;
+                Reflect.set(clonedOptions, key, Reflect.get(options, key));
+            }
+            clonedOptions.minPoolSize = 0;
+            internalClient = new mongo_client_1.MongoClient(uri, clonedOptions);
+            this[kInternalClient] = internalClient;
+            for (const eventName of constants_1.MONGO_CLIENT_EVENTS) {
+                for (const listener of client.listeners(eventName)) {
+                    internalClient.on(eventName, listener);
+                }
+            }
+            client.on('newListener', (eventName, listener) => {
+                internalClient?.on(eventName, listener);
+            });
+            this.needsConnecting = true;
+        }
+        return internalClient;
+    }
+    async connectInternalClient() {
+        // TODO(NODE-4144): Remove new variable for type narrowing
+        const internalClient = this[kInternalClient];
+        if (this.needsConnecting && internalClient != null) {
+            this.needsConnecting = false;
+            await internalClient.connect();
+        }
+    }
+    closeCallback(client, force, callback) {
+        (0, util_1.callbackify)(this.close.bind(this))(client, force, callback);
+    }
+    async close(client, force) {
+        let error;
+        try {
+            await this.autoEncrypter.teardown(force);
+        }
+        catch (autoEncrypterError) {
+            error = autoEncrypterError;
+        }
+        const internalClient = this[kInternalClient];
+        if (internalClient != null && client !== internalClient) {
+            return await internalClient.close(force);
+        }
+        if (error != null) {
+            throw error;
+        }
+    }
+    static checkForMongoCrypt() {
+        const mongodbClientEncryption = (0, deps_1.getMongoDBClientEncryption)();
+        if ('kModuleError' in mongodbClientEncryption) {
+            throw new error_1.MongoMissingDependencyError('Auto-encryption requested, but the module is not installed. ' +
+                'Please add `mongodb-client-encryption` as a dependency of your project', {
+                cause: mongodbClientEncryption['kModuleError'],
+                dependencyName: 'mongodb-client-encryption'
+            });
+        }
+    }
+}
+exports.Encrypter = Encrypter;
+//# sourceMappingURL=encrypter.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/encrypter.js.map b/backend/node_modules/mongodb/lib/encrypter.js.map
new file mode 100644
index 0000000..f1fc180
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/encrypter.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/error.js b/backend/node_modules/mongodb/lib/error.js
new file mode 100644
index 0000000..b2e16c1
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/error.js
@@ -0,0 +1,1360 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.MongoWriteConcernError = exports.MongoServerSelectionError = exports.MongoSystemError = exports.MongoMissingDependencyError = exports.MongoMissingCredentialsError = exports.MongoCompatibilityError = exports.MongoInvalidArgumentError = exports.MongoParseError = exports.MongoNetworkTimeoutError = exports.MongoNetworkError = exports.MongoTopologyClosedError = exports.MongoCursorExhaustedError = exports.MongoServerClosedError = exports.MongoCursorInUseError = exports.MongoOperationTimeoutError = exports.MongoUnexpectedServerResponseError = exports.MongoGridFSChunkError = exports.MongoGridFSStreamError = exports.MongoTailableCursorError = exports.MongoChangeStreamError = exports.MongoClientBulkWriteExecutionError = exports.MongoClientBulkWriteCursorError = exports.MongoClientBulkWriteError = exports.MongoGCPError = exports.MongoAzureError = exports.MongoOIDCError = exports.MongoAWSError = exports.MongoKerberosError = exports.MongoExpiredSessionError = exports.MongoTransactionError = exports.MongoNotConnectedError = exports.MongoDecompressionError = exports.MongoBatchReExecutionError = exports.MongoStalePrimaryError = exports.MongoRuntimeError = exports.MongoAPIError = exports.MongoDriverError = exports.MongoServerError = exports.MongoError = exports.MongoErrorLabel = exports.GET_MORE_RESUMABLE_CODES = exports.MONGODB_ERROR_CODES = exports.NODE_IS_RECOVERING_ERROR_MESSAGE = exports.LEGACY_NOT_PRIMARY_OR_SECONDARY_ERROR_MESSAGE = exports.LEGACY_NOT_WRITABLE_PRIMARY_ERROR_MESSAGE = void 0;
+exports.isNetworkErrorBeforeHandshake = isNetworkErrorBeforeHandshake;
+exports.needsRetryableWriteLabel = needsRetryableWriteLabel;
+exports.isRetryableWriteError = isRetryableWriteError;
+exports.isRetryableReadError = isRetryableReadError;
+exports.isNodeShuttingDownError = isNodeShuttingDownError;
+exports.isSDAMUnrecoverableError = isSDAMUnrecoverableError;
+exports.isNetworkTimeoutError = isNetworkTimeoutError;
+exports.isResumableError = isResumableError;
+/** @internal */
+const kErrorLabels = Symbol('errorLabels');
+/**
+ * @internal
+ * The legacy error message from the server that indicates the node is not a writable primary
+ * https://github.com/mongodb/specifications/blob/921232976f9913cf17415b5ef937ee772e45e6ae/source/server-discovery-and-monitoring/server-discovery-and-monitoring.md#not-writable-primary-and-node-is-recovering
+ */
+exports.LEGACY_NOT_WRITABLE_PRIMARY_ERROR_MESSAGE = new RegExp('not master', 'i');
+/**
+ * @internal
+ * The legacy error message from the server that indicates the node is not a primary or secondary
+ * https://github.com/mongodb/specifications/blob/921232976f9913cf17415b5ef937ee772e45e6ae/source/server-discovery-and-monitoring/server-discovery-and-monitoring.md#not-writable-primary-and-node-is-recovering
+ */
+exports.LEGACY_NOT_PRIMARY_OR_SECONDARY_ERROR_MESSAGE = new RegExp('not master or secondary', 'i');
+/**
+ * @internal
+ * The error message from the server that indicates the node is recovering
+ * https://github.com/mongodb/specifications/blob/921232976f9913cf17415b5ef937ee772e45e6ae/source/server-discovery-and-monitoring/server-discovery-and-monitoring.md#not-writable-primary-and-node-is-recovering
+ */
+exports.NODE_IS_RECOVERING_ERROR_MESSAGE = new RegExp('node is recovering', 'i');
+/** @internal MongoDB Error Codes */
+exports.MONGODB_ERROR_CODES = Object.freeze({
+    HostUnreachable: 6,
+    HostNotFound: 7,
+    AuthenticationFailed: 18,
+    NetworkTimeout: 89,
+    ShutdownInProgress: 91,
+    PrimarySteppedDown: 189,
+    ExceededTimeLimit: 262,
+    SocketException: 9001,
+    NotWritablePrimary: 10107,
+    InterruptedAtShutdown: 11600,
+    InterruptedDueToReplStateChange: 11602,
+    NotPrimaryNoSecondaryOk: 13435,
+    NotPrimaryOrSecondary: 13436,
+    StaleShardVersion: 63,
+    StaleEpoch: 150,
+    StaleConfig: 13388,
+    RetryChangeStream: 234,
+    FailedToSatisfyReadPreference: 133,
+    CursorNotFound: 43,
+    LegacyNotPrimary: 10058,
+    WriteConcernFailed: 64,
+    NamespaceNotFound: 26,
+    IllegalOperation: 20,
+    MaxTimeMSExpired: 50,
+    UnknownReplWriteConcern: 79,
+    UnsatisfiableWriteConcern: 100,
+    Reauthenticate: 391,
+    ReadConcernMajorityNotAvailableYet: 134
+});
+// From spec https://github.com/mongodb/specifications/blob/921232976f9913cf17415b5ef937ee772e45e6ae/source/change-streams/change-streams.md#resumable-error
+exports.GET_MORE_RESUMABLE_CODES = new Set([
+    exports.MONGODB_ERROR_CODES.HostUnreachable,
+    exports.MONGODB_ERROR_CODES.HostNotFound,
+    exports.MONGODB_ERROR_CODES.NetworkTimeout,
+    exports.MONGODB_ERROR_CODES.ShutdownInProgress,
+    exports.MONGODB_ERROR_CODES.PrimarySteppedDown,
+    exports.MONGODB_ERROR_CODES.ExceededTimeLimit,
+    exports.MONGODB_ERROR_CODES.SocketException,
+    exports.MONGODB_ERROR_CODES.NotWritablePrimary,
+    exports.MONGODB_ERROR_CODES.InterruptedAtShutdown,
+    exports.MONGODB_ERROR_CODES.InterruptedDueToReplStateChange,
+    exports.MONGODB_ERROR_CODES.NotPrimaryNoSecondaryOk,
+    exports.MONGODB_ERROR_CODES.NotPrimaryOrSecondary,
+    exports.MONGODB_ERROR_CODES.StaleShardVersion,
+    exports.MONGODB_ERROR_CODES.StaleEpoch,
+    exports.MONGODB_ERROR_CODES.StaleConfig,
+    exports.MONGODB_ERROR_CODES.RetryChangeStream,
+    exports.MONGODB_ERROR_CODES.FailedToSatisfyReadPreference,
+    exports.MONGODB_ERROR_CODES.CursorNotFound
+]);
+/** @public */
+exports.MongoErrorLabel = Object.freeze({
+    RetryableWriteError: 'RetryableWriteError',
+    TransientTransactionError: 'TransientTransactionError',
+    UnknownTransactionCommitResult: 'UnknownTransactionCommitResult',
+    ResumableChangeStreamError: 'ResumableChangeStreamError',
+    HandshakeError: 'HandshakeError',
+    ResetPool: 'ResetPool',
+    PoolRequstedRetry: 'PoolRequstedRetry',
+    InterruptInUseConnections: 'InterruptInUseConnections',
+    NoWritesPerformed: 'NoWritesPerformed'
+});
+function isAggregateError(e) {
+    return e != null && typeof e === 'object' && 'errors' in e && Array.isArray(e.errors);
+}
+/**
+ * @public
+ * @category Error
+ *
+ * @privateRemarks
+ * mongodb-client-encryption has a dependency on this error, it uses the constructor with a string argument
+ */
+class MongoError extends Error {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message, options) {
+        super(message, options);
+        this[kErrorLabels] = new Set();
+    }
+    /** @internal */
+    static buildErrorMessage(e) {
+        if (typeof e === 'string') {
+            return e;
+        }
+        if (isAggregateError(e) && e.message.length === 0) {
+            return e.errors.length === 0
+                ? 'AggregateError has an empty errors array. Please check the `cause` property for more information.'
+                : e.errors.map(({ message }) => message).join(', ');
+        }
+        return e != null && typeof e === 'object' && 'message' in e && typeof e.message === 'string'
+            ? e.message
+            : 'empty error message';
+    }
+    get name() {
+        return 'MongoError';
+    }
+    /** Legacy name for server error responses */
+    get errmsg() {
+        return this.message;
+    }
+    /**
+     * Checks the error to see if it has an error label
+     *
+     * @param label - The error label to check for
+     * @returns returns true if the error has the provided error label
+     */
+    hasErrorLabel(label) {
+        return this[kErrorLabels].has(label);
+    }
+    addErrorLabel(label) {
+        this[kErrorLabels].add(label);
+    }
+    get errorLabels() {
+        return Array.from(this[kErrorLabels]);
+    }
+}
+exports.MongoError = MongoError;
+/**
+ * An error coming from the mongo server
+ *
+ * @public
+ * @category Error
+ */
+class MongoServerError extends MongoError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message) {
+        super(message.message || message.errmsg || message.$err || 'n/a');
+        if (message.errorLabels) {
+            this[kErrorLabels] = new Set(message.errorLabels);
+        }
+        this.errorResponse = message;
+        for (const name in message) {
+            if (name !== 'errorLabels' &&
+                name !== 'errmsg' &&
+                name !== 'message' &&
+                name !== 'errorResponse') {
+                this[name] = message[name];
+            }
+        }
+    }
+    get name() {
+        return 'MongoServerError';
+    }
+}
+exports.MongoServerError = MongoServerError;
+/**
+ * An error generated by the driver
+ *
+ * @public
+ * @category Error
+ */
+class MongoDriverError extends MongoError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message, options) {
+        super(message, options);
+    }
+    get name() {
+        return 'MongoDriverError';
+    }
+}
+exports.MongoDriverError = MongoDriverError;
+/**
+ * An error generated when the driver API is used incorrectly
+ *
+ * @privateRemarks
+ * Should **never** be directly instantiated
+ *
+ * @public
+ * @category Error
+ */
+class MongoAPIError extends MongoDriverError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message, options) {
+        super(message, options);
+    }
+    get name() {
+        return 'MongoAPIError';
+    }
+}
+exports.MongoAPIError = MongoAPIError;
+/**
+ * An error generated when the driver encounters unexpected input
+ * or reaches an unexpected/invalid internal state.
+ *
+ * @privateRemarks
+ * Should **never** be directly instantiated.
+ *
+ * @public
+ * @category Error
+ */
+class MongoRuntimeError extends MongoDriverError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message, options) {
+        super(message, options);
+    }
+    get name() {
+        return 'MongoRuntimeError';
+    }
+}
+exports.MongoRuntimeError = MongoRuntimeError;
+/**
+ * An error generated when a primary server is marked stale, never directly thrown
+ *
+ * @public
+ * @category Error
+ */
+class MongoStalePrimaryError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(serverDescription, maxSetVersion, maxElectionId, options) {
+        super(`primary marked stale due to electionId/setVersion mismatch: server setVersion: ${serverDescription.setVersion}, server electionId: ${serverDescription.electionId}, topology setVersion: ${maxSetVersion}, topology electionId: ${maxElectionId}`, options);
+    }
+    get name() {
+        return 'MongoStalePrimaryError';
+    }
+}
+exports.MongoStalePrimaryError = MongoStalePrimaryError;
+/**
+ * An error generated when a batch command is re-executed after one of the commands in the batch
+ * has failed
+ *
+ * @public
+ * @category Error
+ */
+class MongoBatchReExecutionError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message = 'This batch has already been executed, create new batch to execute') {
+        super(message);
+    }
+    get name() {
+        return 'MongoBatchReExecutionError';
+    }
+}
+exports.MongoBatchReExecutionError = MongoBatchReExecutionError;
+/**
+ * An error generated when the driver fails to decompress
+ * data received from the server.
+ *
+ * @public
+ * @category Error
+ */
+class MongoDecompressionError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message) {
+        super(message);
+    }
+    get name() {
+        return 'MongoDecompressionError';
+    }
+}
+exports.MongoDecompressionError = MongoDecompressionError;
+/**
+ * An error thrown when the user attempts to operate on a database or collection through a MongoClient
+ * that has not yet successfully called the "connect" method
+ *
+ * @public
+ * @category Error
+ */
+class MongoNotConnectedError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message) {
+        super(message);
+    }
+    get name() {
+        return 'MongoNotConnectedError';
+    }
+}
+exports.MongoNotConnectedError = MongoNotConnectedError;
+/**
+ * An error generated when the user makes a mistake in the usage of transactions.
+ * (e.g. attempting to commit a transaction with a readPreference other than primary)
+ *
+ * @public
+ * @category Error
+ */
+class MongoTransactionError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message) {
+        super(message);
+    }
+    get name() {
+        return 'MongoTransactionError';
+    }
+}
+exports.MongoTransactionError = MongoTransactionError;
+/**
+ * An error generated when the user attempts to operate
+ * on a session that has expired or has been closed.
+ *
+ * @public
+ * @category Error
+ */
+class MongoExpiredSessionError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message = 'Cannot use a session that has ended') {
+        super(message);
+    }
+    get name() {
+        return 'MongoExpiredSessionError';
+    }
+}
+exports.MongoExpiredSessionError = MongoExpiredSessionError;
+/**
+ * A error generated when the user attempts to authenticate
+ * via Kerberos, but fails to connect to the Kerberos client.
+ *
+ * @public
+ * @category Error
+ */
+class MongoKerberosError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message) {
+        super(message);
+    }
+    get name() {
+        return 'MongoKerberosError';
+    }
+}
+exports.MongoKerberosError = MongoKerberosError;
+/**
+ * A error generated when the user attempts to authenticate
+ * via AWS, but fails
+ *
+ * @public
+ * @category Error
+ */
+class MongoAWSError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message, options) {
+        super(message, options);
+    }
+    get name() {
+        return 'MongoAWSError';
+    }
+}
+exports.MongoAWSError = MongoAWSError;
+/**
+ * A error generated when the user attempts to authenticate
+ * via OIDC callbacks, but fails.
+ *
+ * @public
+ * @category Error
+ */
+class MongoOIDCError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message) {
+        super(message);
+    }
+    get name() {
+        return 'MongoOIDCError';
+    }
+}
+exports.MongoOIDCError = MongoOIDCError;
+/**
+ * A error generated when the user attempts to authenticate
+ * via Azure, but fails.
+ *
+ * @public
+ * @category Error
+ */
+class MongoAzureError extends MongoOIDCError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message) {
+        super(message);
+    }
+    get name() {
+        return 'MongoAzureError';
+    }
+}
+exports.MongoAzureError = MongoAzureError;
+/**
+ * A error generated when the user attempts to authenticate
+ * via GCP, but fails.
+ *
+ * @public
+ * @category Error
+ */
+class MongoGCPError extends MongoOIDCError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message) {
+        super(message);
+    }
+    get name() {
+        return 'MongoGCPError';
+    }
+}
+exports.MongoGCPError = MongoGCPError;
+/**
+ * An error indicating that an error occurred when executing the bulk write.
+ *
+ * @public
+ * @category Error
+ */
+class MongoClientBulkWriteError extends MongoServerError {
+    /**
+     * Initialize the client bulk write error.
+     * @param message - The error message.
+     */
+    constructor(message) {
+        super(message);
+        this.writeConcernErrors = [];
+        this.writeErrors = new Map();
+    }
+    get name() {
+        return 'MongoClientBulkWriteError';
+    }
+}
+exports.MongoClientBulkWriteError = MongoClientBulkWriteError;
+/**
+ * An error indicating that an error occurred when processing bulk write results.
+ *
+ * @public
+ * @category Error
+ */
+class MongoClientBulkWriteCursorError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message) {
+        super(message);
+    }
+    get name() {
+        return 'MongoClientBulkWriteCursorError';
+    }
+}
+exports.MongoClientBulkWriteCursorError = MongoClientBulkWriteCursorError;
+/**
+ * An error indicating that an error occurred on the client when executing a client bulk write.
+ *
+ * @public
+ * @category Error
+ */
+class MongoClientBulkWriteExecutionError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message) {
+        super(message);
+    }
+    get name() {
+        return 'MongoClientBulkWriteExecutionError';
+    }
+}
+exports.MongoClientBulkWriteExecutionError = MongoClientBulkWriteExecutionError;
+/**
+ * An error generated when a ChangeStream operation fails to execute.
+ *
+ * @public
+ * @category Error
+ */
+class MongoChangeStreamError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message) {
+        super(message);
+    }
+    get name() {
+        return 'MongoChangeStreamError';
+    }
+}
+exports.MongoChangeStreamError = MongoChangeStreamError;
+/**
+ * An error thrown when the user calls a function or method not supported on a tailable cursor
+ *
+ * @public
+ * @category Error
+ */
+class MongoTailableCursorError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message = 'Tailable cursor does not support this operation') {
+        super(message);
+    }
+    get name() {
+        return 'MongoTailableCursorError';
+    }
+}
+exports.MongoTailableCursorError = MongoTailableCursorError;
+/** An error generated when a GridFSStream operation fails to execute.
+ *
+ * @public
+ * @category Error
+ */
+class MongoGridFSStreamError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message) {
+        super(message);
+    }
+    get name() {
+        return 'MongoGridFSStreamError';
+    }
+}
+exports.MongoGridFSStreamError = MongoGridFSStreamError;
+/**
+ * An error generated when a malformed or invalid chunk is
+ * encountered when reading from a GridFSStream.
+ *
+ * @public
+ * @category Error
+ */
+class MongoGridFSChunkError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message) {
+        super(message);
+    }
+    get name() {
+        return 'MongoGridFSChunkError';
+    }
+}
+exports.MongoGridFSChunkError = MongoGridFSChunkError;
+/**
+ * An error generated when a **parsable** unexpected response comes from the server.
+ * This is generally an error where the driver in a state expecting a certain behavior to occur in
+ * the next message from MongoDB but it receives something else.
+ * This error **does not** represent an issue with wire message formatting.
+ *
+ * #### Example
+ * When an operation fails, it is the driver's job to retry it. It must perform serverSelection
+ * again to make sure that it attempts the operation against a server in a good state. If server
+ * selection returns a server that does not support retryable operations, this error is used.
+ * This scenario is unlikely as retryable support would also have been determined on the first attempt
+ * but it is possible the state change could report a selectable server that does not support retries.
+ *
+ * @public
+ * @category Error
+ */
+class MongoUnexpectedServerResponseError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message, options) {
+        super(message, options);
+    }
+    get name() {
+        return 'MongoUnexpectedServerResponseError';
+    }
+}
+exports.MongoUnexpectedServerResponseError = MongoUnexpectedServerResponseError;
+/**
+ * @public
+ * @category Error
+ *
+ * The `MongoOperationTimeoutError` class represents an error that occurs when an operation could not be completed within the specified `timeoutMS`.
+ * It is generated by the driver in support of the "client side operation timeout" feature so inherits from `MongoDriverError`.
+ * When `timeoutMS` is enabled `MongoServerError`s relating to `MaxTimeExpired` errors will be converted to `MongoOperationTimeoutError`
+ *
+ * @example
+ * ```ts
+ * try {
+ *   await blogs.insertOne(blogPost, { timeoutMS: 60_000 })
+ * } catch (error) {
+ *   if (error instanceof MongoOperationTimeoutError) {
+ *     console.log(`Oh no! writer's block!`, error);
+ *   }
+ * }
+ * ```
+ */
+class MongoOperationTimeoutError extends MongoDriverError {
+    get name() {
+        return 'MongoOperationTimeoutError';
+    }
+}
+exports.MongoOperationTimeoutError = MongoOperationTimeoutError;
+/**
+ * An error thrown when the user attempts to add options to a cursor that has already been
+ * initialized
+ *
+ * @public
+ * @category Error
+ */
+class MongoCursorInUseError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message = 'Cursor is already initialized') {
+        super(message);
+    }
+    get name() {
+        return 'MongoCursorInUseError';
+    }
+}
+exports.MongoCursorInUseError = MongoCursorInUseError;
+/**
+ * An error generated when an attempt is made to operate
+ * on a closed/closing server.
+ *
+ * @public
+ * @category Error
+ */
+class MongoServerClosedError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message = 'Server is closed') {
+        super(message);
+    }
+    get name() {
+        return 'MongoServerClosedError';
+    }
+}
+exports.MongoServerClosedError = MongoServerClosedError;
+/**
+ * An error thrown when an attempt is made to read from a cursor that has been exhausted
+ *
+ * @public
+ * @category Error
+ */
+class MongoCursorExhaustedError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message) {
+        super(message || 'Cursor is exhausted');
+    }
+    get name() {
+        return 'MongoCursorExhaustedError';
+    }
+}
+exports.MongoCursorExhaustedError = MongoCursorExhaustedError;
+/**
+ * An error generated when an attempt is made to operate on a
+ * dropped, or otherwise unavailable, database.
+ *
+ * @public
+ * @category Error
+ */
+class MongoTopologyClosedError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message = 'Topology is closed') {
+        super(message);
+    }
+    get name() {
+        return 'MongoTopologyClosedError';
+    }
+}
+exports.MongoTopologyClosedError = MongoTopologyClosedError;
+/** @internal */
+const kBeforeHandshake = Symbol('beforeHandshake');
+function isNetworkErrorBeforeHandshake(err) {
+    return err[kBeforeHandshake] === true;
+}
+/**
+ * An error indicating an issue with the network, including TCP errors and timeouts.
+ * @public
+ * @category Error
+ */
+class MongoNetworkError extends MongoError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message, options) {
+        super(message, { cause: options?.cause });
+        if (options && typeof options.beforeHandshake === 'boolean') {
+            this[kBeforeHandshake] = options.beforeHandshake;
+        }
+    }
+    get name() {
+        return 'MongoNetworkError';
+    }
+}
+exports.MongoNetworkError = MongoNetworkError;
+/**
+ * An error indicating a network timeout occurred
+ * @public
+ * @category Error
+ *
+ * @privateRemarks
+ * mongodb-client-encryption has a dependency on this error with an instanceof check
+ */
+class MongoNetworkTimeoutError extends MongoNetworkError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message, options) {
+        super(message, options);
+    }
+    get name() {
+        return 'MongoNetworkTimeoutError';
+    }
+}
+exports.MongoNetworkTimeoutError = MongoNetworkTimeoutError;
+/**
+ * An error used when attempting to parse a value (like a connection string)
+ * @public
+ * @category Error
+ */
+class MongoParseError extends MongoDriverError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message) {
+        super(message);
+    }
+    get name() {
+        return 'MongoParseError';
+    }
+}
+exports.MongoParseError = MongoParseError;
+/**
+ * An error generated when the user supplies malformed or unexpected arguments
+ * or when a required argument or field is not provided.
+ *
+ *
+ * @public
+ * @category Error
+ */
+class MongoInvalidArgumentError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message, options) {
+        super(message, options);
+    }
+    get name() {
+        return 'MongoInvalidArgumentError';
+    }
+}
+exports.MongoInvalidArgumentError = MongoInvalidArgumentError;
+/**
+ * An error generated when a feature that is not enabled or allowed for the current server
+ * configuration is used
+ *
+ *
+ * @public
+ * @category Error
+ */
+class MongoCompatibilityError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message) {
+        super(message);
+    }
+    get name() {
+        return 'MongoCompatibilityError';
+    }
+}
+exports.MongoCompatibilityError = MongoCompatibilityError;
+/**
+ * An error generated when the user fails to provide authentication credentials before attempting
+ * to connect to a mongo server instance.
+ *
+ *
+ * @public
+ * @category Error
+ */
+class MongoMissingCredentialsError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message) {
+        super(message);
+    }
+    get name() {
+        return 'MongoMissingCredentialsError';
+    }
+}
+exports.MongoMissingCredentialsError = MongoMissingCredentialsError;
+/**
+ * An error generated when a required module or dependency is not present in the local environment
+ *
+ * @public
+ * @category Error
+ */
+class MongoMissingDependencyError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message, options) {
+        super(message, options);
+        this.dependencyName = options.dependencyName;
+    }
+    get name() {
+        return 'MongoMissingDependencyError';
+    }
+}
+exports.MongoMissingDependencyError = MongoMissingDependencyError;
+/**
+ * An error signifying a general system issue
+ * @public
+ * @category Error
+ */
+class MongoSystemError extends MongoError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message, reason) {
+        if (reason && reason.error) {
+            super(MongoError.buildErrorMessage(reason.error.message || reason.error), {
+                cause: reason.error
+            });
+        }
+        else {
+            super(message);
+        }
+        if (reason) {
+            this.reason = reason;
+        }
+        this.code = reason.error?.code;
+    }
+    get name() {
+        return 'MongoSystemError';
+    }
+}
+exports.MongoSystemError = MongoSystemError;
+/**
+ * An error signifying a client-side server selection error
+ * @public
+ * @category Error
+ */
+class MongoServerSelectionError extends MongoSystemError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message, reason) {
+        super(message, reason);
+    }
+    get name() {
+        return 'MongoServerSelectionError';
+    }
+}
+exports.MongoServerSelectionError = MongoServerSelectionError;
+/**
+ * An error thrown when the server reports a writeConcernError
+ * @public
+ * @category Error
+ */
+class MongoWriteConcernError extends MongoServerError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(result) {
+        super({ ...result.writeConcernError, ...result });
+        this.errInfo = result.writeConcernError.errInfo;
+        this.result = result;
+    }
+    get name() {
+        return 'MongoWriteConcernError';
+    }
+}
+exports.MongoWriteConcernError = MongoWriteConcernError;
+// https://github.com/mongodb/specifications/blob/master/source/retryable-reads/retryable-reads.md#retryable-error
+const RETRYABLE_READ_ERROR_CODES = new Set([
+    exports.MONGODB_ERROR_CODES.HostUnreachable,
+    exports.MONGODB_ERROR_CODES.HostNotFound,
+    exports.MONGODB_ERROR_CODES.NetworkTimeout,
+    exports.MONGODB_ERROR_CODES.ShutdownInProgress,
+    exports.MONGODB_ERROR_CODES.PrimarySteppedDown,
+    exports.MONGODB_ERROR_CODES.SocketException,
+    exports.MONGODB_ERROR_CODES.NotWritablePrimary,
+    exports.MONGODB_ERROR_CODES.InterruptedAtShutdown,
+    exports.MONGODB_ERROR_CODES.InterruptedDueToReplStateChange,
+    exports.MONGODB_ERROR_CODES.NotPrimaryNoSecondaryOk,
+    exports.MONGODB_ERROR_CODES.NotPrimaryOrSecondary,
+    exports.MONGODB_ERROR_CODES.ExceededTimeLimit,
+    exports.MONGODB_ERROR_CODES.ReadConcernMajorityNotAvailableYet
+]);
+// see: https://github.com/mongodb/specifications/blob/master/source/retryable-writes/retryable-writes.md#terms
+const RETRYABLE_WRITE_ERROR_CODES = RETRYABLE_READ_ERROR_CODES;
+function needsRetryableWriteLabel(error, maxWireVersion, serverType) {
+    // pre-4.4 server, then the driver adds an error label for every valid case
+    // execute operation will only inspect the label, code/message logic is handled here
+    if (error instanceof MongoNetworkError) {
+        return true;
+    }
+    if (error instanceof MongoError) {
+        if ((maxWireVersion >= 9 || isRetryableWriteError(error)) &&
+            !error.hasErrorLabel(exports.MongoErrorLabel.HandshakeError)) {
+            // If we already have the error label no need to add it again. 4.4+ servers add the label.
+            // In the case where we have a handshake error, need to fall down to the logic checking
+            // the codes.
+            return false;
+        }
+    }
+    if (error instanceof MongoWriteConcernError) {
+        if (serverType === 'Mongos' && maxWireVersion < 9) {
+            // use original top-level code from server response
+            return RETRYABLE_WRITE_ERROR_CODES.has(error.result.code ?? 0);
+        }
+        const code = error.result.writeConcernError.code ?? Number(error.code);
+        return RETRYABLE_WRITE_ERROR_CODES.has(Number.isNaN(code) ? 0 : code);
+    }
+    if (error instanceof MongoError) {
+        return RETRYABLE_WRITE_ERROR_CODES.has(Number(error.code));
+    }
+    const isNotWritablePrimaryError = exports.LEGACY_NOT_WRITABLE_PRIMARY_ERROR_MESSAGE.test(error.message);
+    if (isNotWritablePrimaryError) {
+        return true;
+    }
+    const isNodeIsRecoveringError = exports.NODE_IS_RECOVERING_ERROR_MESSAGE.test(error.message);
+    if (isNodeIsRecoveringError) {
+        return true;
+    }
+    return false;
+}
+function isRetryableWriteError(error) {
+    return (error.hasErrorLabel(exports.MongoErrorLabel.RetryableWriteError) ||
+        error.hasErrorLabel(exports.MongoErrorLabel.PoolRequstedRetry));
+}
+/** Determines whether an error is something the driver should attempt to retry */
+function isRetryableReadError(error) {
+    const hasRetryableErrorCode = typeof error.code === 'number' ? RETRYABLE_READ_ERROR_CODES.has(error.code) : false;
+    if (hasRetryableErrorCode) {
+        return true;
+    }
+    if (error instanceof MongoNetworkError) {
+        return true;
+    }
+    const isNotWritablePrimaryError = exports.LEGACY_NOT_WRITABLE_PRIMARY_ERROR_MESSAGE.test(error.message);
+    if (isNotWritablePrimaryError) {
+        return true;
+    }
+    const isNodeIsRecoveringError = exports.NODE_IS_RECOVERING_ERROR_MESSAGE.test(error.message);
+    if (isNodeIsRecoveringError) {
+        return true;
+    }
+    return false;
+}
+const SDAM_RECOVERING_CODES = new Set([
+    exports.MONGODB_ERROR_CODES.ShutdownInProgress,
+    exports.MONGODB_ERROR_CODES.PrimarySteppedDown,
+    exports.MONGODB_ERROR_CODES.InterruptedAtShutdown,
+    exports.MONGODB_ERROR_CODES.InterruptedDueToReplStateChange,
+    exports.MONGODB_ERROR_CODES.NotPrimaryOrSecondary
+]);
+const SDAM_NOT_PRIMARY_CODES = new Set([
+    exports.MONGODB_ERROR_CODES.NotWritablePrimary,
+    exports.MONGODB_ERROR_CODES.NotPrimaryNoSecondaryOk,
+    exports.MONGODB_ERROR_CODES.LegacyNotPrimary
+]);
+const SDAM_NODE_SHUTTING_DOWN_ERROR_CODES = new Set([
+    exports.MONGODB_ERROR_CODES.InterruptedAtShutdown,
+    exports.MONGODB_ERROR_CODES.ShutdownInProgress
+]);
+function isRecoveringError(err) {
+    if (typeof err.code === 'number') {
+        // If any error code exists, we ignore the error.message
+        return SDAM_RECOVERING_CODES.has(err.code);
+    }
+    return (exports.LEGACY_NOT_PRIMARY_OR_SECONDARY_ERROR_MESSAGE.test(err.message) ||
+        exports.NODE_IS_RECOVERING_ERROR_MESSAGE.test(err.message));
+}
+function isNotWritablePrimaryError(err) {
+    if (typeof err.code === 'number') {
+        // If any error code exists, we ignore the error.message
+        return SDAM_NOT_PRIMARY_CODES.has(err.code);
+    }
+    if (isRecoveringError(err)) {
+        return false;
+    }
+    return exports.LEGACY_NOT_WRITABLE_PRIMARY_ERROR_MESSAGE.test(err.message);
+}
+function isNodeShuttingDownError(err) {
+    return !!(typeof err.code === 'number' && SDAM_NODE_SHUTTING_DOWN_ERROR_CODES.has(err.code));
+}
+/**
+ * Determines whether SDAM can recover from a given error. If it cannot
+ * then the pool will be cleared, and server state will completely reset
+ * locally.
+ *
+ * @see https://github.com/mongodb/specifications/blob/master/source/server-discovery-and-monitoring/server-discovery-and-monitoring.md#not-writable-primary-and-node-is-recovering
+ */
+function isSDAMUnrecoverableError(error) {
+    // NOTE: null check is here for a strictly pre-CMAP world, a timeout or
+    //       close event are considered unrecoverable
+    if (error instanceof MongoParseError || error == null) {
+        return true;
+    }
+    return isRecoveringError(error) || isNotWritablePrimaryError(error);
+}
+function isNetworkTimeoutError(err) {
+    return !!(err instanceof MongoNetworkError && err.message.match(/timed out/));
+}
+function isResumableError(error, wireVersion) {
+    if (error == null || !(error instanceof MongoError)) {
+        return false;
+    }
+    if (error instanceof MongoNetworkError) {
+        return true;
+    }
+    if (wireVersion != null && wireVersion >= 9) {
+        // DRIVERS-1308: For 4.4 drivers running against 4.4 servers, drivers will add a special case to treat the CursorNotFound error code as resumable
+        if (error.code === exports.MONGODB_ERROR_CODES.CursorNotFound) {
+            return true;
+        }
+        return error.hasErrorLabel(exports.MongoErrorLabel.ResumableChangeStreamError);
+    }
+    if (typeof error.code === 'number') {
+        return exports.GET_MORE_RESUMABLE_CODES.has(error.code);
+    }
+    return false;
+}
+//# sourceMappingURL=error.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/error.js.map b/backend/node_modules/mongodb/lib/error.js.map
new file mode 100644
index 0000000..a9661d3
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/error.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/explain.js b/backend/node_modules/mongodb/lib/explain.js
new file mode 100644
index 0000000..43bcc1d
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/explain.js
@@ -0,0 +1,91 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ExplainableCursor = exports.Explain = exports.ExplainVerbosity = void 0;
+exports.validateExplainTimeoutOptions = validateExplainTimeoutOptions;
+exports.decorateWithExplain = decorateWithExplain;
+const abstract_cursor_1 = require("./cursor/abstract_cursor");
+const error_1 = require("./error");
+/** @public */
+exports.ExplainVerbosity = Object.freeze({
+    queryPlanner: 'queryPlanner',
+    queryPlannerExtended: 'queryPlannerExtended',
+    executionStats: 'executionStats',
+    allPlansExecution: 'allPlansExecution'
+});
+/** @internal */
+class Explain {
+    constructor(verbosity, maxTimeMS) {
+        if (typeof verbosity === 'boolean') {
+            this.verbosity = verbosity
+                ? exports.ExplainVerbosity.allPlansExecution
+                : exports.ExplainVerbosity.queryPlanner;
+        }
+        else {
+            this.verbosity = verbosity;
+        }
+        this.maxTimeMS = maxTimeMS;
+    }
+    static fromOptions({ explain } = {}) {
+        if (explain == null)
+            return;
+        if (typeof explain === 'boolean' || typeof explain === 'string') {
+            return new Explain(explain);
+        }
+        const { verbosity, maxTimeMS } = explain;
+        return new Explain(verbosity, maxTimeMS);
+    }
+}
+exports.Explain = Explain;
+function validateExplainTimeoutOptions(options, explain) {
+    const { maxTimeMS, timeoutMS } = options;
+    if (timeoutMS != null && (maxTimeMS != null || explain?.maxTimeMS != null)) {
+        throw new error_1.MongoAPIError('Cannot use maxTimeMS with timeoutMS for explain commands.');
+    }
+}
+/**
+ * Applies an explain to a given command.
+ * @internal
+ *
+ * @param command - the command on which to apply the explain
+ * @param options - the options containing the explain verbosity
+ */
+function decorateWithExplain(command, explain) {
+    const { verbosity, maxTimeMS } = explain;
+    const baseCommand = { explain: command, verbosity };
+    if (typeof maxTimeMS === 'number') {
+        baseCommand.maxTimeMS = maxTimeMS;
+    }
+    return baseCommand;
+}
+/**
+ * @public
+ *
+ * A base class for any cursors that have `explain()` methods.
+ */
+class ExplainableCursor extends abstract_cursor_1.AbstractCursor {
+    resolveExplainTimeoutOptions(verbosity, options) {
+        let explain;
+        let timeout;
+        if (verbosity == null && options == null) {
+            explain = undefined;
+            timeout = undefined;
+        }
+        else if (verbosity != null && options == null) {
+            explain =
+                typeof verbosity !== 'object'
+                    ? verbosity
+                    : 'verbosity' in verbosity
+                        ? verbosity
+                        : undefined;
+            timeout = typeof verbosity === 'object' && 'timeoutMS' in verbosity ? verbosity : undefined;
+        }
+        else {
+            // @ts-expect-error TS isn't smart enough to determine that if both options are provided, the first is explain options
+            explain = verbosity;
+            timeout = options;
+        }
+        return { timeout, explain };
+    }
+}
+exports.ExplainableCursor = ExplainableCursor;
+//# sourceMappingURL=explain.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/explain.js.map b/backend/node_modules/mongodb/lib/explain.js.map
new file mode 100644
index 0000000..c9c316b
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/explain.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"explain.js","sourceRoot":"","sources":["../src/explain.ts"],"names":[],"mappings":";;;AA6FA,sEAKC;AASD,kDAiBC;AA3HD,8DAA0D;AAC1D,mCAAwC;AAExC,cAAc;AACD,QAAA,gBAAgB,GAAG,MAAM,CAAC,MAAM,CAAC;IAC5C,YAAY,EAAE,cAAc;IAC5B,oBAAoB,EAAE,sBAAsB;IAC5C,cAAc,EAAE,gBAAgB;IAChC,iBAAiB,EAAE,mBAAmB;CAC9B,CAAC,CAAC;AAsDZ,gBAAgB;AAChB,MAAa,OAAO;IAIlB,YAAoB,SAA+B,EAAE,SAAkB;QACrE,IAAI,OAAO,SAAS,KAAK,SAAS,EAAE,CAAC;YACnC,IAAI,CAAC,SAAS,GAAG,SAAS;gBACxB,CAAC,CAAC,wBAAgB,CAAC,iBAAiB;gBACpC,CAAC,CAAC,wBAAgB,CAAC,YAAY,CAAC;QACpC,CAAC;aAAM,CAAC;YACN,IAAI,CAAC,SAAS,GAAG,SAAS,CAAC;QAC7B,CAAC;QAED,IAAI,CAAC,SAAS,GAAG,SAAS,CAAC;IAC7B,CAAC;IAED,MAAM,CAAC,WAAW,CAAC,EAAE,OAAO,KAAqB,EAAE;QACjD,IAAI,OAAO,IAAI,IAAI;YAAE,OAAO;QAE5B,IAAI,OAAO,OAAO,KAAK,SAAS,IAAI,OAAO,OAAO,KAAK,QAAQ,EAAE,CAAC;YAChE,OAAO,IAAI,OAAO,CAAC,OAAO,CAAC,CAAC;QAC9B,CAAC;QAED,MAAM,EAAE,SAAS,EAAE,SAAS,EAAE,GAAG,OAAO,CAAC;QACzC,OAAO,IAAI,OAAO,CAAC,SAAS,EAAE,SAAS,CAAC,CAAC;IAC3C,CAAC;CACF;AA1BD,0BA0BC;AAED,SAAgB,6BAA6B,CAAC,OAAiB,EAAE,OAAiB;IAChF,MAAM,EAAE,SAAS,EAAE,SAAS,EAAE,GAAG,OAAO,CAAC;IACzC,IAAI,SAAS,IAAI,IAAI,IAAI,CAAC,SAAS,IAAI,IAAI,IAAI,OAAO,EAAE,SAAS,IAAI,IAAI,CAAC,EAAE,CAAC;QAC3E,MAAM,IAAI,qBAAa,CAAC,2DAA2D,CAAC,CAAC;IACvF,CAAC;AACH,CAAC;AAED;;;;;;GAMG;AACH,SAAgB,mBAAmB,CACjC,OAAiB,EACjB,OAAgB;IAOhB,MAAM,EAAE,SAAS,EAAE,SAAS,EAAE,GAAG,OAAO,CAAC;IACzC,MAAM,WAAW,GAAmB,EAAE,OAAO,EAAE,OAAO,EAAE,SAAS,EAAE,CAAC;IAEpE,IAAI,OAAO,SAAS,KAAK,QAAQ,EAAE,CAAC;QAClC,WAAW,CAAC,SAAS,GAAG,SAAS,CAAC;IACpC,CAAC;IAED,OAAO,WAAW,CAAC;AACrB,CAAC;AAED;;;;GAIG;AACH,MAAsB,iBAA2B,SAAQ,gCAAuB;IAcpE,4BAA4B,CACpC,SAAiF,EACjF,OAAgC;QAEhC,IAAI,OAAiE,CAAC;QACtE,IAAI,OAA2C,CAAC;QAEhD,IAAI,SAAS,IAAI,IAAI,IAAI,OAAO,IAAI,IAAI,EAAE,CAAC;YACzC,OAAO,GAAG,SAAS,CAAC;YACpB,OAAO,GAAG,SAAS,CAAC;QACtB,CAAC;aAAM,IAAI,SAAS,IAAI,IAAI,IAAI,OAAO,IAAI,IAAI,EAAE,CAAC;YAChD,OAAO;gBACL,OAAO,SAAS,KAAK,QAAQ;oBAC3B,CAAC,CAAC,SAAS;oBACX,CAAC,CAAC,WAAW,IAAI,SAAS;wBACxB,CAAC,CAAC,SAAS;wBACX,CAAC,CAAC,SAAS,CAAC;YAElB,OAAO,GAAG,OAAO,SAAS,KAAK,QAAQ,IAAI,WAAW,IAAI,SAAS,CAAC,CAAC,CAAC,SAAS,CAAC,CAAC,CAAC,SAAS,CAAC;QAC9F,CAAC;aAAM,CAAC;YACN,sHAAsH;YACtH,OAAO,GAAG,SAAS,CAAC;YACpB,OAAO,GAAG,OAAO,CAAC;QACpB,CAAC;QAED,OAAO,EAAE,OAAO,EAAE,OAAO,EAAE,CAAC;IAC9B,CAAC;CACF;AAzCD,8CAyCC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/gridfs/download.js b/backend/node_modules/mongodb/lib/gridfs/download.js
new file mode 100644
index 0000000..0cb17fb
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/gridfs/download.js
@@ -0,0 +1,305 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.GridFSBucketReadStream = void 0;
+const stream_1 = require("stream");
+const abstract_cursor_1 = require("../cursor/abstract_cursor");
+const error_1 = require("../error");
+const timeout_1 = require("../timeout");
+/**
+ * A readable stream that enables you to read buffers from GridFS.
+ *
+ * Do not instantiate this class directly. Use `openDownloadStream()` instead.
+ * @public
+ */
+class GridFSBucketReadStream extends stream_1.Readable {
+    /**
+     * @param chunks - Handle for chunks collection
+     * @param files - Handle for files collection
+     * @param readPreference - The read preference to use
+     * @param filter - The filter to use to find the file document
+     * @internal
+     */
+    constructor(chunks, files, readPreference, filter, options) {
+        super({ emitClose: true });
+        this.s = {
+            bytesToTrim: 0,
+            bytesToSkip: 0,
+            bytesRead: 0,
+            chunks,
+            expected: 0,
+            files,
+            filter,
+            init: false,
+            expectedEnd: 0,
+            options: {
+                start: 0,
+                end: 0,
+                ...options
+            },
+            readPreference,
+            timeoutContext: options?.timeoutMS != null
+                ? new timeout_1.CSOTTimeoutContext({ timeoutMS: options.timeoutMS, serverSelectionTimeoutMS: 0 })
+                : undefined
+        };
+    }
+    /**
+     * Reads from the cursor and pushes to the stream.
+     * Private Impl, do not call directly
+     * @internal
+     */
+    _read() {
+        if (this.destroyed)
+            return;
+        waitForFile(this, () => doRead(this));
+    }
+    /**
+     * Sets the 0-based offset in bytes to start streaming from. Throws
+     * an error if this stream has entered flowing mode
+     * (e.g. if you've already called `on('data')`)
+     *
+     * @param start - 0-based offset in bytes to start streaming from
+     */
+    start(start = 0) {
+        throwIfInitialized(this);
+        this.s.options.start = start;
+        return this;
+    }
+    /**
+     * Sets the 0-based offset in bytes to start streaming from. Throws
+     * an error if this stream has entered flowing mode
+     * (e.g. if you've already called `on('data')`)
+     *
+     * @param end - Offset in bytes to stop reading at
+     */
+    end(end = 0) {
+        throwIfInitialized(this);
+        this.s.options.end = end;
+        return this;
+    }
+    /**
+     * Marks this stream as aborted (will never push another `data` event)
+     * and kills the underlying cursor. Will emit the 'end' event, and then
+     * the 'close' event once the cursor is successfully killed.
+     */
+    async abort() {
+        this.push(null);
+        this.destroy();
+        const remainingTimeMS = this.s.timeoutContext?.getRemainingTimeMSOrThrow();
+        await this.s.cursor?.close({ timeoutMS: remainingTimeMS });
+    }
+}
+exports.GridFSBucketReadStream = GridFSBucketReadStream;
+/**
+ * Fires when the stream loaded the file document corresponding to the provided id.
+ * @event
+ */
+GridFSBucketReadStream.FILE = 'file';
+function throwIfInitialized(stream) {
+    if (stream.s.init) {
+        throw new error_1.MongoGridFSStreamError('Options cannot be changed after the stream is initialized');
+    }
+}
+function doRead(stream) {
+    if (stream.destroyed)
+        return;
+    if (!stream.s.cursor)
+        return;
+    if (!stream.s.file)
+        return;
+    const handleReadResult = (doc) => {
+        if (stream.destroyed)
+            return;
+        if (!doc) {
+            stream.push(null);
+            stream.s.cursor?.close().then(undefined, error => stream.destroy(error));
+            return;
+        }
+        if (!stream.s.file)
+            return;
+        const bytesRemaining = stream.s.file.length - stream.s.bytesRead;
+        const expectedN = stream.s.expected++;
+        const expectedLength = Math.min(stream.s.file.chunkSize, bytesRemaining);
+        if (doc.n > expectedN) {
+            return stream.destroy(new error_1.MongoGridFSChunkError(`ChunkIsMissing: Got unexpected n: ${doc.n}, expected: ${expectedN}`));
+        }
+        if (doc.n < expectedN) {
+            return stream.destroy(new error_1.MongoGridFSChunkError(`ExtraChunk: Got unexpected n: ${doc.n}, expected: ${expectedN}`));
+        }
+        let buf = Buffer.isBuffer(doc.data) ? doc.data : doc.data.buffer;
+        if (buf.byteLength !== expectedLength) {
+            if (bytesRemaining <= 0) {
+                return stream.destroy(new error_1.MongoGridFSChunkError(`ExtraChunk: Got unexpected n: ${doc.n}, expected file length ${stream.s.file.length} bytes but already read ${stream.s.bytesRead} bytes`));
+            }
+            return stream.destroy(new error_1.MongoGridFSChunkError(`ChunkIsWrongSize: Got unexpected length: ${buf.byteLength}, expected: ${expectedLength}`));
+        }
+        stream.s.bytesRead += buf.byteLength;
+        if (buf.byteLength === 0) {
+            return stream.push(null);
+        }
+        let sliceStart = null;
+        let sliceEnd = null;
+        if (stream.s.bytesToSkip != null) {
+            sliceStart = stream.s.bytesToSkip;
+            stream.s.bytesToSkip = 0;
+        }
+        const atEndOfStream = expectedN === stream.s.expectedEnd - 1;
+        const bytesLeftToRead = stream.s.options.end - stream.s.bytesToSkip;
+        if (atEndOfStream && stream.s.bytesToTrim != null) {
+            sliceEnd = stream.s.file.chunkSize - stream.s.bytesToTrim;
+        }
+        else if (stream.s.options.end && bytesLeftToRead < doc.data.byteLength) {
+            sliceEnd = bytesLeftToRead;
+        }
+        if (sliceStart != null || sliceEnd != null) {
+            buf = buf.slice(sliceStart || 0, sliceEnd || buf.byteLength);
+        }
+        stream.push(buf);
+        return;
+    };
+    stream.s.cursor.next().then(handleReadResult, error => {
+        if (stream.destroyed)
+            return;
+        stream.destroy(error);
+    });
+}
+function init(stream) {
+    const findOneOptions = {};
+    if (stream.s.readPreference) {
+        findOneOptions.readPreference = stream.s.readPreference;
+    }
+    if (stream.s.options && stream.s.options.sort) {
+        findOneOptions.sort = stream.s.options.sort;
+    }
+    if (stream.s.options && stream.s.options.skip) {
+        findOneOptions.skip = stream.s.options.skip;
+    }
+    const handleReadResult = (doc) => {
+        if (stream.destroyed)
+            return;
+        if (!doc) {
+            const identifier = stream.s.filter._id
+                ? stream.s.filter._id.toString()
+                : stream.s.filter.filename;
+            const errmsg = `FileNotFound: file ${identifier} was not found`;
+            // TODO(NODE-3483)
+            const err = new error_1.MongoRuntimeError(errmsg);
+            err.code = 'ENOENT'; // TODO: NODE-3338 set property as part of constructor
+            return stream.destroy(err);
+        }
+        // If document is empty, kill the stream immediately and don't
+        // execute any reads
+        if (doc.length <= 0) {
+            stream.push(null);
+            return;
+        }
+        if (stream.destroyed) {
+            // If user destroys the stream before we have a cursor, wait
+            // until the query is done to say we're 'closed' because we can't
+            // cancel a query.
+            stream.destroy();
+            return;
+        }
+        try {
+            stream.s.bytesToSkip = handleStartOption(stream, doc, stream.s.options);
+        }
+        catch (error) {
+            return stream.destroy(error);
+        }
+        const filter = { files_id: doc._id };
+        // Currently (MongoDB 3.4.4) skip function does not support the index,
+        // it needs to retrieve all the documents first and then skip them. (CS-25811)
+        // As work around we use $gte on the "n" field.
+        if (stream.s.options && stream.s.options.start != null) {
+            const skip = Math.floor(stream.s.options.start / doc.chunkSize);
+            if (skip > 0) {
+                filter['n'] = { $gte: skip };
+            }
+        }
+        let remainingTimeMS;
+        try {
+            remainingTimeMS = stream.s.timeoutContext?.getRemainingTimeMSOrThrow(`Download timed out after ${stream.s.timeoutContext?.timeoutMS}ms`);
+        }
+        catch (error) {
+            return stream.destroy(error);
+        }
+        stream.s.cursor = stream.s.chunks
+            .find(filter, {
+            timeoutMode: stream.s.options.timeoutMS != null ? abstract_cursor_1.CursorTimeoutMode.LIFETIME : undefined,
+            timeoutMS: remainingTimeMS
+        })
+            .sort({ n: 1 });
+        if (stream.s.readPreference) {
+            stream.s.cursor.withReadPreference(stream.s.readPreference);
+        }
+        stream.s.expectedEnd = Math.ceil(doc.length / doc.chunkSize);
+        stream.s.file = doc;
+        try {
+            stream.s.bytesToTrim = handleEndOption(stream, doc, stream.s.cursor, stream.s.options);
+        }
+        catch (error) {
+            return stream.destroy(error);
+        }
+        stream.emit(GridFSBucketReadStream.FILE, doc);
+        return;
+    };
+    let remainingTimeMS;
+    try {
+        remainingTimeMS = stream.s.timeoutContext?.getRemainingTimeMSOrThrow(`Download timed out after ${stream.s.timeoutContext?.timeoutMS}ms`);
+    }
+    catch (error) {
+        if (!stream.destroyed)
+            stream.destroy(error);
+        return;
+    }
+    findOneOptions.timeoutMS = remainingTimeMS;
+    stream.s.files.findOne(stream.s.filter, findOneOptions).then(handleReadResult, error => {
+        if (stream.destroyed)
+            return;
+        stream.destroy(error);
+    });
+}
+function waitForFile(stream, callback) {
+    if (stream.s.file) {
+        return callback();
+    }
+    if (!stream.s.init) {
+        init(stream);
+        stream.s.init = true;
+    }
+    stream.once('file', () => {
+        callback();
+    });
+}
+function handleStartOption(stream, doc, options) {
+    if (options && options.start != null) {
+        if (options.start > doc.length) {
+            throw new error_1.MongoInvalidArgumentError(`Stream start (${options.start}) must not be more than the length of the file (${doc.length})`);
+        }
+        if (options.start < 0) {
+            throw new error_1.MongoInvalidArgumentError(`Stream start (${options.start}) must not be negative`);
+        }
+        if (options.end != null && options.end < options.start) {
+            throw new error_1.MongoInvalidArgumentError(`Stream start (${options.start}) must not be greater than stream end (${options.end})`);
+        }
+        stream.s.bytesRead = Math.floor(options.start / doc.chunkSize) * doc.chunkSize;
+        stream.s.expected = Math.floor(options.start / doc.chunkSize);
+        return options.start - stream.s.bytesRead;
+    }
+    throw new error_1.MongoInvalidArgumentError('Start option must be defined');
+}
+function handleEndOption(stream, doc, cursor, options) {
+    if (options && options.end != null) {
+        if (options.end > doc.length) {
+            throw new error_1.MongoInvalidArgumentError(`Stream end (${options.end}) must not be more than the length of the file (${doc.length})`);
+        }
+        if (options.start == null || options.start < 0) {
+            throw new error_1.MongoInvalidArgumentError(`Stream end (${options.end}) must not be negative`);
+        }
+        const start = options.start != null ? Math.floor(options.start / doc.chunkSize) : 0;
+        cursor.limit(Math.ceil(options.end / doc.chunkSize) - start);
+        stream.s.expectedEnd = Math.ceil(options.end / doc.chunkSize);
+        return Math.ceil(options.end / doc.chunkSize) * doc.chunkSize - options.end;
+    }
+    throw new error_1.MongoInvalidArgumentError('End option must be defined');
+}
+//# sourceMappingURL=download.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/gridfs/download.js.map b/backend/node_modules/mongodb/lib/gridfs/download.js.map
new file mode 100644
index 0000000..ebcfa2b
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/gridfs/download.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/gridfs/index.js b/backend/node_modules/mongodb/lib/gridfs/index.js
new file mode 100644
index 0000000..eceddfa
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/gridfs/index.js
@@ -0,0 +1,163 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.GridFSBucket = void 0;
+const error_1 = require("../error");
+const mongo_types_1 = require("../mongo_types");
+const timeout_1 = require("../timeout");
+const utils_1 = require("../utils");
+const write_concern_1 = require("../write_concern");
+const download_1 = require("./download");
+const upload_1 = require("./upload");
+const DEFAULT_GRIDFS_BUCKET_OPTIONS = {
+    bucketName: 'fs',
+    chunkSizeBytes: 255 * 1024
+};
+/**
+ * Constructor for a streaming GridFS interface
+ * @public
+ */
+class GridFSBucket extends mongo_types_1.TypedEventEmitter {
+    constructor(db, options) {
+        super();
+        this.setMaxListeners(0);
+        const privateOptions = (0, utils_1.resolveOptions)(db, {
+            ...DEFAULT_GRIDFS_BUCKET_OPTIONS,
+            ...options,
+            writeConcern: write_concern_1.WriteConcern.fromOptions(options)
+        });
+        this.s = {
+            db,
+            options: privateOptions,
+            _chunksCollection: db.collection(privateOptions.bucketName + '.chunks'),
+            _filesCollection: db.collection(privateOptions.bucketName + '.files'),
+            checkedIndexes: false,
+            calledOpenUploadStream: false
+        };
+    }
+    /**
+     * Returns a writable stream (GridFSBucketWriteStream) for writing
+     * buffers to GridFS. The stream's 'id' property contains the resulting
+     * file's id.
+     *
+     * @param filename - The value of the 'filename' key in the files doc
+     * @param options - Optional settings.
+     */
+    openUploadStream(filename, options) {
+        return new upload_1.GridFSBucketWriteStream(this, filename, {
+            timeoutMS: this.s.options.timeoutMS,
+            ...options
+        });
+    }
+    /**
+     * Returns a writable stream (GridFSBucketWriteStream) for writing
+     * buffers to GridFS for a custom file id. The stream's 'id' property contains the resulting
+     * file's id.
+     */
+    openUploadStreamWithId(id, filename, options) {
+        return new upload_1.GridFSBucketWriteStream(this, filename, {
+            timeoutMS: this.s.options.timeoutMS,
+            ...options,
+            id
+        });
+    }
+    /** Returns a readable stream (GridFSBucketReadStream) for streaming file data from GridFS. */
+    openDownloadStream(id, options) {
+        return new download_1.GridFSBucketReadStream(this.s._chunksCollection, this.s._filesCollection, this.s.options.readPreference, { _id: id }, { timeoutMS: this.s.options.timeoutMS, ...options });
+    }
+    /**
+     * Deletes a file with the given id
+     *
+     * @param id - The id of the file doc
+     */
+    async delete(id, options) {
+        const { timeoutMS } = (0, utils_1.resolveOptions)(this.s.db, options);
+        let timeoutContext = undefined;
+        if (timeoutMS) {
+            timeoutContext = new timeout_1.CSOTTimeoutContext({
+                timeoutMS,
+                serverSelectionTimeoutMS: this.s.db.client.s.options.serverSelectionTimeoutMS
+            });
+        }
+        const { deletedCount } = await this.s._filesCollection.deleteOne({ _id: id }, { timeoutMS: timeoutContext?.remainingTimeMS });
+        const remainingTimeMS = timeoutContext?.remainingTimeMS;
+        if (remainingTimeMS != null && remainingTimeMS <= 0)
+            throw new error_1.MongoOperationTimeoutError(`Timed out after ${timeoutMS}ms`);
+        // Delete orphaned chunks before returning FileNotFound
+        await this.s._chunksCollection.deleteMany({ files_id: id }, { timeoutMS: remainingTimeMS });
+        if (deletedCount === 0) {
+            // TODO(NODE-3483): Replace with more appropriate error
+            // Consider creating new error MongoGridFSFileNotFoundError
+            throw new error_1.MongoRuntimeError(`File not found for id ${id}`);
+        }
+    }
+    /** Convenience wrapper around find on the files collection */
+    find(filter = {}, options = {}) {
+        return this.s._filesCollection.find(filter, options);
+    }
+    /**
+     * Returns a readable stream (GridFSBucketReadStream) for streaming the
+     * file with the given name from GridFS. If there are multiple files with
+     * the same name, this will stream the most recent file with the given name
+     * (as determined by the `uploadDate` field). You can set the `revision`
+     * option to change this behavior.
+     */
+    openDownloadStreamByName(filename, options) {
+        let sort = { uploadDate: -1 };
+        let skip = undefined;
+        if (options && options.revision != null) {
+            if (options.revision >= 0) {
+                sort = { uploadDate: 1 };
+                skip = options.revision;
+            }
+            else {
+                skip = -options.revision - 1;
+            }
+        }
+        return new download_1.GridFSBucketReadStream(this.s._chunksCollection, this.s._filesCollection, this.s.options.readPreference, { filename }, { timeoutMS: this.s.options.timeoutMS, ...options, sort, skip });
+    }
+    /**
+     * Renames the file with the given _id to the given string
+     *
+     * @param id - the id of the file to rename
+     * @param filename - new name for the file
+     */
+    async rename(id, filename, options) {
+        const filter = { _id: id };
+        const update = { $set: { filename } };
+        const { matchedCount } = await this.s._filesCollection.updateOne(filter, update, options);
+        if (matchedCount === 0) {
+            throw new error_1.MongoRuntimeError(`File with id ${id} not found`);
+        }
+    }
+    /** Removes this bucket's files collection, followed by its chunks collection. */
+    async drop(options) {
+        const { timeoutMS } = (0, utils_1.resolveOptions)(this.s.db, options);
+        let timeoutContext = undefined;
+        if (timeoutMS) {
+            timeoutContext = new timeout_1.CSOTTimeoutContext({
+                timeoutMS,
+                serverSelectionTimeoutMS: this.s.db.client.s.options.serverSelectionTimeoutMS
+            });
+        }
+        if (timeoutContext) {
+            await this.s._filesCollection.drop({ timeoutMS: timeoutContext.remainingTimeMS });
+            const remainingTimeMS = timeoutContext.getRemainingTimeMSOrThrow(`Timed out after ${timeoutMS}ms`);
+            await this.s._chunksCollection.drop({ timeoutMS: remainingTimeMS });
+        }
+        else {
+            await this.s._filesCollection.drop();
+            await this.s._chunksCollection.drop();
+        }
+    }
+}
+exports.GridFSBucket = GridFSBucket;
+/**
+ * When the first call to openUploadStream is made, the upload stream will
+ * check to see if it needs to create the proper indexes on the chunks and
+ * files collections. This event is fired either when 1) it determines that
+ * no index creation is necessary, 2) when it successfully creates the
+ * necessary indexes.
+ * @event
+ */
+GridFSBucket.INDEX = 'index';
+//# sourceMappingURL=index.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/gridfs/index.js.map b/backend/node_modules/mongodb/lib/gridfs/index.js.map
new file mode 100644
index 0000000..c24c81a
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/gridfs/index.js.map
@@ -0,0 +1 @@
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diff --git a/backend/node_modules/mongodb/lib/gridfs/upload.js b/backend/node_modules/mongodb/lib/gridfs/upload.js
new file mode 100644
index 0000000..fe5a986
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/gridfs/upload.js
@@ -0,0 +1,364 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.GridFSBucketWriteStream = void 0;
+const stream_1 = require("stream");
+const bson_1 = require("../bson");
+const abstract_cursor_1 = require("../cursor/abstract_cursor");
+const error_1 = require("../error");
+const timeout_1 = require("../timeout");
+const utils_1 = require("../utils");
+const write_concern_1 = require("./../write_concern");
+/**
+ * A writable stream that enables you to write buffers to GridFS.
+ *
+ * Do not instantiate this class directly. Use `openUploadStream()` instead.
+ * @public
+ */
+class GridFSBucketWriteStream extends stream_1.Writable {
+    /**
+     * @param bucket - Handle for this stream's corresponding bucket
+     * @param filename - The value of the 'filename' key in the files doc
+     * @param options - Optional settings.
+     * @internal
+     */
+    constructor(bucket, filename, options) {
+        super();
+        /**
+         * The document containing information about the inserted file.
+         * This property is defined _after_ the finish event has been emitted.
+         * It will remain `null` if an error occurs.
+         *
+         * @example
+         * ```ts
+         * fs.createReadStream('file.txt')
+         *   .pipe(bucket.openUploadStream('file.txt'))
+         *   .on('finish', function () {
+         *     console.log(this.gridFSFile)
+         *   })
+         * ```
+         */
+        this.gridFSFile = null;
+        options = options ?? {};
+        this.bucket = bucket;
+        this.chunks = bucket.s._chunksCollection;
+        this.filename = filename;
+        this.files = bucket.s._filesCollection;
+        this.options = options;
+        this.writeConcern = write_concern_1.WriteConcern.fromOptions(options) || bucket.s.options.writeConcern;
+        // Signals the write is all done
+        this.done = false;
+        this.id = options.id ? options.id : new bson_1.ObjectId();
+        // properly inherit the default chunksize from parent
+        this.chunkSizeBytes = options.chunkSizeBytes || this.bucket.s.options.chunkSizeBytes;
+        this.bufToStore = Buffer.alloc(this.chunkSizeBytes);
+        this.length = 0;
+        this.n = 0;
+        this.pos = 0;
+        this.state = {
+            streamEnd: false,
+            outstandingRequests: 0,
+            errored: false,
+            aborted: false
+        };
+        if (options.timeoutMS != null)
+            this.timeoutContext = new timeout_1.CSOTTimeoutContext({
+                timeoutMS: options.timeoutMS,
+                serverSelectionTimeoutMS: (0, utils_1.resolveTimeoutOptions)(this.bucket.s.db.client, {})
+                    .serverSelectionTimeoutMS
+            });
+    }
+    /**
+     * @internal
+     *
+     * The stream is considered constructed when the indexes are done being created
+     */
+    _construct(callback) {
+        if (!this.bucket.s.calledOpenUploadStream) {
+            this.bucket.s.calledOpenUploadStream = true;
+            checkIndexes(this).then(() => {
+                this.bucket.s.checkedIndexes = true;
+                this.bucket.emit('index');
+                callback();
+            }, error => {
+                if (error instanceof error_1.MongoOperationTimeoutError) {
+                    return handleError(this, error, callback);
+                }
+                (0, utils_1.squashError)(error);
+                callback();
+            });
+        }
+        else {
+            return process.nextTick(callback);
+        }
+    }
+    /**
+     * @internal
+     * Write a buffer to the stream.
+     *
+     * @param chunk - Buffer to write
+     * @param encoding - Optional encoding for the buffer
+     * @param callback - Function to call when the chunk was added to the buffer, or if the entire chunk was persisted to MongoDB if this chunk caused a flush.
+     */
+    _write(chunk, encoding, callback) {
+        doWrite(this, chunk, encoding, callback);
+    }
+    /** @internal */
+    _final(callback) {
+        if (this.state.streamEnd) {
+            return process.nextTick(callback);
+        }
+        this.state.streamEnd = true;
+        writeRemnant(this, callback);
+    }
+    /**
+     * Places this write stream into an aborted state (all future writes fail)
+     * and deletes all chunks that have already been written.
+     */
+    async abort() {
+        if (this.state.streamEnd) {
+            // TODO(NODE-3485): Replace with MongoGridFSStreamClosed
+            throw new error_1.MongoAPIError('Cannot abort a stream that has already completed');
+        }
+        if (this.state.aborted) {
+            // TODO(NODE-3485): Replace with MongoGridFSStreamClosed
+            throw new error_1.MongoAPIError('Cannot call abort() on a stream twice');
+        }
+        this.state.aborted = true;
+        const remainingTimeMS = this.timeoutContext?.getRemainingTimeMSOrThrow(`Upload timed out after ${this.timeoutContext?.timeoutMS}ms`);
+        await this.chunks.deleteMany({ files_id: this.id }, { timeoutMS: remainingTimeMS });
+    }
+}
+exports.GridFSBucketWriteStream = GridFSBucketWriteStream;
+function handleError(stream, error, callback) {
+    if (stream.state.errored) {
+        process.nextTick(callback);
+        return;
+    }
+    stream.state.errored = true;
+    process.nextTick(callback, error);
+}
+function createChunkDoc(filesId, n, data) {
+    return {
+        _id: new bson_1.ObjectId(),
+        files_id: filesId,
+        n,
+        data
+    };
+}
+async function checkChunksIndex(stream) {
+    const index = { files_id: 1, n: 1 };
+    let remainingTimeMS;
+    remainingTimeMS = stream.timeoutContext?.getRemainingTimeMSOrThrow(`Upload timed out after ${stream.timeoutContext?.timeoutMS}ms`);
+    let indexes;
+    try {
+        indexes = await stream.chunks
+            .listIndexes({
+            timeoutMode: remainingTimeMS != null ? abstract_cursor_1.CursorTimeoutMode.LIFETIME : undefined,
+            timeoutMS: remainingTimeMS
+        })
+            .toArray();
+    }
+    catch (error) {
+        if (error instanceof error_1.MongoError && error.code === error_1.MONGODB_ERROR_CODES.NamespaceNotFound) {
+            indexes = [];
+        }
+        else {
+            throw error;
+        }
+    }
+    const hasChunksIndex = !!indexes.find(index => {
+        const keys = Object.keys(index.key);
+        if (keys.length === 2 && index.key.files_id === 1 && index.key.n === 1) {
+            return true;
+        }
+        return false;
+    });
+    if (!hasChunksIndex) {
+        remainingTimeMS = stream.timeoutContext?.getRemainingTimeMSOrThrow(`Upload timed out after ${stream.timeoutContext?.timeoutMS}ms`);
+        await stream.chunks.createIndex(index, {
+            ...stream.writeConcern,
+            background: true,
+            unique: true,
+            timeoutMS: remainingTimeMS
+        });
+    }
+}
+function checkDone(stream, callback) {
+    if (stream.done) {
+        return process.nextTick(callback);
+    }
+    if (stream.state.streamEnd && stream.state.outstandingRequests === 0 && !stream.state.errored) {
+        // Set done so we do not trigger duplicate createFilesDoc
+        stream.done = true;
+        // Create a new files doc
+        const gridFSFile = createFilesDoc(stream.id, stream.length, stream.chunkSizeBytes, stream.filename, stream.options.contentType, stream.options.aliases, stream.options.metadata);
+        if (isAborted(stream, callback)) {
+            return;
+        }
+        const remainingTimeMS = stream.timeoutContext?.remainingTimeMS;
+        if (remainingTimeMS != null && remainingTimeMS <= 0) {
+            return handleError(stream, new error_1.MongoOperationTimeoutError(`Upload timed out after ${stream.timeoutContext?.timeoutMS}ms`), callback);
+        }
+        stream.files
+            .insertOne(gridFSFile, { writeConcern: stream.writeConcern, timeoutMS: remainingTimeMS })
+            .then(() => {
+            stream.gridFSFile = gridFSFile;
+            callback();
+        }, error => {
+            return handleError(stream, error, callback);
+        });
+        return;
+    }
+    process.nextTick(callback);
+}
+async function checkIndexes(stream) {
+    let remainingTimeMS = stream.timeoutContext?.getRemainingTimeMSOrThrow(`Upload timed out after ${stream.timeoutContext?.timeoutMS}ms`);
+    const doc = await stream.files.findOne({}, {
+        projection: { _id: 1 },
+        timeoutMS: remainingTimeMS
+    });
+    if (doc != null) {
+        // If at least one document exists assume the collection has the required index
+        return;
+    }
+    const index = { filename: 1, uploadDate: 1 };
+    let indexes;
+    remainingTimeMS = stream.timeoutContext?.getRemainingTimeMSOrThrow(`Upload timed out after ${stream.timeoutContext?.timeoutMS}ms`);
+    const listIndexesOptions = {
+        timeoutMode: remainingTimeMS != null ? abstract_cursor_1.CursorTimeoutMode.LIFETIME : undefined,
+        timeoutMS: remainingTimeMS
+    };
+    try {
+        indexes = await stream.files.listIndexes(listIndexesOptions).toArray();
+    }
+    catch (error) {
+        if (error instanceof error_1.MongoError && error.code === error_1.MONGODB_ERROR_CODES.NamespaceNotFound) {
+            indexes = [];
+        }
+        else {
+            throw error;
+        }
+    }
+    const hasFileIndex = !!indexes.find(index => {
+        const keys = Object.keys(index.key);
+        if (keys.length === 2 && index.key.filename === 1 && index.key.uploadDate === 1) {
+            return true;
+        }
+        return false;
+    });
+    if (!hasFileIndex) {
+        remainingTimeMS = stream.timeoutContext?.getRemainingTimeMSOrThrow(`Upload timed out after ${stream.timeoutContext?.timeoutMS}ms`);
+        await stream.files.createIndex(index, { background: false, timeoutMS: remainingTimeMS });
+    }
+    await checkChunksIndex(stream);
+}
+function createFilesDoc(_id, length, chunkSize, filename, contentType, aliases, metadata) {
+    const ret = {
+        _id,
+        length,
+        chunkSize,
+        uploadDate: new Date(),
+        filename
+    };
+    if (contentType) {
+        ret.contentType = contentType;
+    }
+    if (aliases) {
+        ret.aliases = aliases;
+    }
+    if (metadata) {
+        ret.metadata = metadata;
+    }
+    return ret;
+}
+function doWrite(stream, chunk, encoding, callback) {
+    if (isAborted(stream, callback)) {
+        return;
+    }
+    const inputBuf = Buffer.isBuffer(chunk) ? chunk : Buffer.from(chunk, encoding);
+    stream.length += inputBuf.length;
+    // Input is small enough to fit in our buffer
+    if (stream.pos + inputBuf.length < stream.chunkSizeBytes) {
+        inputBuf.copy(stream.bufToStore, stream.pos);
+        stream.pos += inputBuf.length;
+        process.nextTick(callback);
+        return;
+    }
+    // Otherwise, buffer is too big for current chunk, so we need to flush
+    // to MongoDB.
+    let inputBufRemaining = inputBuf.length;
+    let spaceRemaining = stream.chunkSizeBytes - stream.pos;
+    let numToCopy = Math.min(spaceRemaining, inputBuf.length);
+    let outstandingRequests = 0;
+    while (inputBufRemaining > 0) {
+        const inputBufPos = inputBuf.length - inputBufRemaining;
+        inputBuf.copy(stream.bufToStore, stream.pos, inputBufPos, inputBufPos + numToCopy);
+        stream.pos += numToCopy;
+        spaceRemaining -= numToCopy;
+        let doc;
+        if (spaceRemaining === 0) {
+            doc = createChunkDoc(stream.id, stream.n, Buffer.from(stream.bufToStore));
+            const remainingTimeMS = stream.timeoutContext?.remainingTimeMS;
+            if (remainingTimeMS != null && remainingTimeMS <= 0) {
+                return handleError(stream, new error_1.MongoOperationTimeoutError(`Upload timed out after ${stream.timeoutContext?.timeoutMS}ms`), callback);
+            }
+            ++stream.state.outstandingRequests;
+            ++outstandingRequests;
+            if (isAborted(stream, callback)) {
+                return;
+            }
+            stream.chunks
+                .insertOne(doc, { writeConcern: stream.writeConcern, timeoutMS: remainingTimeMS })
+                .then(() => {
+                --stream.state.outstandingRequests;
+                --outstandingRequests;
+                if (!outstandingRequests) {
+                    checkDone(stream, callback);
+                }
+            }, error => {
+                return handleError(stream, error, callback);
+            });
+            spaceRemaining = stream.chunkSizeBytes;
+            stream.pos = 0;
+            ++stream.n;
+        }
+        inputBufRemaining -= numToCopy;
+        numToCopy = Math.min(spaceRemaining, inputBufRemaining);
+    }
+}
+function writeRemnant(stream, callback) {
+    // Buffer is empty, so don't bother to insert
+    if (stream.pos === 0) {
+        return checkDone(stream, callback);
+    }
+    // Create a new buffer to make sure the buffer isn't bigger than it needs
+    // to be.
+    const remnant = Buffer.alloc(stream.pos);
+    stream.bufToStore.copy(remnant, 0, 0, stream.pos);
+    const doc = createChunkDoc(stream.id, stream.n, remnant);
+    // If the stream was aborted, do not write remnant
+    if (isAborted(stream, callback)) {
+        return;
+    }
+    const remainingTimeMS = stream.timeoutContext?.remainingTimeMS;
+    if (remainingTimeMS != null && remainingTimeMS <= 0) {
+        return handleError(stream, new error_1.MongoOperationTimeoutError(`Upload timed out after ${stream.timeoutContext?.timeoutMS}ms`), callback);
+    }
+    ++stream.state.outstandingRequests;
+    stream.chunks
+        .insertOne(doc, { writeConcern: stream.writeConcern, timeoutMS: remainingTimeMS })
+        .then(() => {
+        --stream.state.outstandingRequests;
+        checkDone(stream, callback);
+    }, error => {
+        return handleError(stream, error, callback);
+    });
+}
+function isAborted(stream, callback) {
+    if (stream.state.aborted) {
+        process.nextTick(callback, new error_1.MongoAPIError('Stream has been aborted'));
+        return true;
+    }
+    return false;
+}
+//# sourceMappingURL=upload.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/gridfs/upload.js.map b/backend/node_modules/mongodb/lib/gridfs/upload.js.map
new file mode 100644
index 0000000..2a6c8ff
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/gridfs/upload.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/index.js b/backend/node_modules/mongodb/lib/index.js
new file mode 100644
index 0000000..a99c12d
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/index.js
@@ -0,0 +1,192 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.MongoServerError = exports.MongoServerClosedError = exports.MongoRuntimeError = exports.MongoParseError = exports.MongoOperationTimeoutError = exports.MongoOIDCError = exports.MongoNotConnectedError = exports.MongoNetworkTimeoutError = exports.MongoNetworkError = exports.MongoMissingDependencyError = exports.MongoMissingCredentialsError = exports.MongoKerberosError = exports.MongoInvalidArgumentError = exports.MongoGridFSStreamError = exports.MongoGridFSChunkError = exports.MongoGCPError = exports.MongoExpiredSessionError = exports.MongoError = exports.MongoDriverError = exports.MongoDecompressionError = exports.MongoCursorInUseError = exports.MongoCursorExhaustedError = exports.MongoCompatibilityError = exports.MongoClientBulkWriteExecutionError = exports.MongoClientBulkWriteError = exports.MongoClientBulkWriteCursorError = exports.MongoChangeStreamError = exports.MongoBatchReExecutionError = exports.MongoAzureError = exports.MongoAWSError = exports.MongoAPIError = exports.ChangeStreamCursor = exports.ClientEncryption = exports.MongoBulkWriteError = exports.UUID = exports.Timestamp = exports.ObjectId = exports.MinKey = exports.MaxKey = exports.Long = exports.Int32 = exports.Double = exports.Decimal128 = exports.DBRef = exports.Code = exports.BSONType = exports.BSONSymbol = exports.BSONRegExp = exports.Binary = exports.BSON = void 0;
+exports.ConnectionCheckedInEvent = exports.CommandSucceededEvent = exports.CommandStartedEvent = exports.CommandFailedEvent = exports.WriteConcern = exports.ReadPreference = exports.ReadConcern = exports.TopologyType = exports.ServerType = exports.ReadPreferenceMode = exports.ReadConcernLevel = exports.ProfilingLevel = exports.ReturnDocument = exports.ServerApiVersion = exports.ExplainVerbosity = exports.MongoErrorLabel = exports.CursorTimeoutMode = exports.CURSOR_FLAGS = exports.Compressor = exports.AuthMechanism = exports.GSSAPICanonicalizationValue = exports.AutoEncryptionLoggerLevel = exports.BatchType = exports.UnorderedBulkOperation = exports.OrderedBulkOperation = exports.MongoClient = exports.ListIndexesCursor = exports.ListCollectionsCursor = exports.GridFSBucketWriteStream = exports.GridFSBucketReadStream = exports.GridFSBucket = exports.FindCursor = exports.ExplainableCursor = exports.Db = exports.Collection = exports.ClientSession = exports.ChangeStream = exports.CancellationToken = exports.AggregationCursor = exports.Admin = exports.AbstractCursor = exports.configureExplicitResourceManagement = exports.MongoWriteConcernError = exports.MongoUnexpectedServerResponseError = exports.MongoTransactionError = exports.MongoTopologyClosedError = exports.MongoTailableCursorError = exports.MongoSystemError = exports.MongoStalePrimaryError = exports.MongoServerSelectionError = void 0;
+exports.MongoClientAuthProviders = exports.MongoCryptKMSRequestNetworkTimeoutError = exports.MongoCryptInvalidArgumentError = exports.MongoCryptError = exports.MongoCryptCreateEncryptedCollectionError = exports.MongoCryptCreateDataKeyError = exports.MongoCryptAzureKMSRequestError = exports.SrvPollingEvent = exports.WaitingForSuitableServerEvent = exports.ServerSelectionSucceededEvent = exports.ServerSelectionStartedEvent = exports.ServerSelectionFailedEvent = exports.ServerSelectionEvent = exports.TopologyOpeningEvent = exports.TopologyDescriptionChangedEvent = exports.TopologyClosedEvent = exports.ServerOpeningEvent = exports.ServerHeartbeatSucceededEvent = exports.ServerHeartbeatStartedEvent = exports.ServerHeartbeatFailedEvent = exports.ServerDescriptionChangedEvent = exports.ServerClosedEvent = exports.ConnectionReadyEvent = exports.ConnectionPoolReadyEvent = exports.ConnectionPoolMonitoringEvent = exports.ConnectionPoolCreatedEvent = exports.ConnectionPoolClosedEvent = exports.ConnectionPoolClearedEvent = exports.ConnectionCreatedEvent = exports.ConnectionClosedEvent = exports.ConnectionCheckOutStartedEvent = exports.ConnectionCheckOutFailedEvent = exports.ConnectionCheckedOutEvent = void 0;
+const admin_1 = require("./admin");
+Object.defineProperty(exports, "Admin", { enumerable: true, get: function () { return admin_1.Admin; } });
+const ordered_1 = require("./bulk/ordered");
+Object.defineProperty(exports, "OrderedBulkOperation", { enumerable: true, get: function () { return ordered_1.OrderedBulkOperation; } });
+const unordered_1 = require("./bulk/unordered");
+Object.defineProperty(exports, "UnorderedBulkOperation", { enumerable: true, get: function () { return unordered_1.UnorderedBulkOperation; } });
+const change_stream_1 = require("./change_stream");
+Object.defineProperty(exports, "ChangeStream", { enumerable: true, get: function () { return change_stream_1.ChangeStream; } });
+const collection_1 = require("./collection");
+Object.defineProperty(exports, "Collection", { enumerable: true, get: function () { return collection_1.Collection; } });
+const abstract_cursor_1 = require("./cursor/abstract_cursor");
+Object.defineProperty(exports, "AbstractCursor", { enumerable: true, get: function () { return abstract_cursor_1.AbstractCursor; } });
+const aggregation_cursor_1 = require("./cursor/aggregation_cursor");
+Object.defineProperty(exports, "AggregationCursor", { enumerable: true, get: function () { return aggregation_cursor_1.AggregationCursor; } });
+const find_cursor_1 = require("./cursor/find_cursor");
+Object.defineProperty(exports, "FindCursor", { enumerable: true, get: function () { return find_cursor_1.FindCursor; } });
+const list_collections_cursor_1 = require("./cursor/list_collections_cursor");
+Object.defineProperty(exports, "ListCollectionsCursor", { enumerable: true, get: function () { return list_collections_cursor_1.ListCollectionsCursor; } });
+const list_indexes_cursor_1 = require("./cursor/list_indexes_cursor");
+Object.defineProperty(exports, "ListIndexesCursor", { enumerable: true, get: function () { return list_indexes_cursor_1.ListIndexesCursor; } });
+const db_1 = require("./db");
+Object.defineProperty(exports, "Db", { enumerable: true, get: function () { return db_1.Db; } });
+const explain_1 = require("./explain");
+Object.defineProperty(exports, "ExplainableCursor", { enumerable: true, get: function () { return explain_1.ExplainableCursor; } });
+const gridfs_1 = require("./gridfs");
+Object.defineProperty(exports, "GridFSBucket", { enumerable: true, get: function () { return gridfs_1.GridFSBucket; } });
+const download_1 = require("./gridfs/download");
+Object.defineProperty(exports, "GridFSBucketReadStream", { enumerable: true, get: function () { return download_1.GridFSBucketReadStream; } });
+const upload_1 = require("./gridfs/upload");
+Object.defineProperty(exports, "GridFSBucketWriteStream", { enumerable: true, get: function () { return upload_1.GridFSBucketWriteStream; } });
+const mongo_client_1 = require("./mongo_client");
+Object.defineProperty(exports, "MongoClient", { enumerable: true, get: function () { return mongo_client_1.MongoClient; } });
+const mongo_types_1 = require("./mongo_types");
+Object.defineProperty(exports, "CancellationToken", { enumerable: true, get: function () { return mongo_types_1.CancellationToken; } });
+const sessions_1 = require("./sessions");
+Object.defineProperty(exports, "ClientSession", { enumerable: true, get: function () { return sessions_1.ClientSession; } });
+/** @public */
+var bson_1 = require("./bson");
+Object.defineProperty(exports, "BSON", { enumerable: true, get: function () { return bson_1.BSON; } });
+var bson_2 = require("./bson");
+Object.defineProperty(exports, "Binary", { enumerable: true, get: function () { return bson_2.Binary; } });
+Object.defineProperty(exports, "BSONRegExp", { enumerable: true, get: function () { return bson_2.BSONRegExp; } });
+Object.defineProperty(exports, "BSONSymbol", { enumerable: true, get: function () { return bson_2.BSONSymbol; } });
+Object.defineProperty(exports, "BSONType", { enumerable: true, get: function () { return bson_2.BSONType; } });
+Object.defineProperty(exports, "Code", { enumerable: true, get: function () { return bson_2.Code; } });
+Object.defineProperty(exports, "DBRef", { enumerable: true, get: function () { return bson_2.DBRef; } });
+Object.defineProperty(exports, "Decimal128", { enumerable: true, get: function () { return bson_2.Decimal128; } });
+Object.defineProperty(exports, "Double", { enumerable: true, get: function () { return bson_2.Double; } });
+Object.defineProperty(exports, "Int32", { enumerable: true, get: function () { return bson_2.Int32; } });
+Object.defineProperty(exports, "Long", { enumerable: true, get: function () { return bson_2.Long; } });
+Object.defineProperty(exports, "MaxKey", { enumerable: true, get: function () { return bson_2.MaxKey; } });
+Object.defineProperty(exports, "MinKey", { enumerable: true, get: function () { return bson_2.MinKey; } });
+Object.defineProperty(exports, "ObjectId", { enumerable: true, get: function () { return bson_2.ObjectId; } });
+Object.defineProperty(exports, "Timestamp", { enumerable: true, get: function () { return bson_2.Timestamp; } });
+Object.defineProperty(exports, "UUID", { enumerable: true, get: function () { return bson_2.UUID; } });
+var common_1 = require("./bulk/common");
+Object.defineProperty(exports, "MongoBulkWriteError", { enumerable: true, get: function () { return common_1.MongoBulkWriteError; } });
+var client_encryption_1 = require("./client-side-encryption/client_encryption");
+Object.defineProperty(exports, "ClientEncryption", { enumerable: true, get: function () { return client_encryption_1.ClientEncryption; } });
+var change_stream_cursor_1 = require("./cursor/change_stream_cursor");
+Object.defineProperty(exports, "ChangeStreamCursor", { enumerable: true, get: function () { return change_stream_cursor_1.ChangeStreamCursor; } });
+var error_1 = require("./error");
+Object.defineProperty(exports, "MongoAPIError", { enumerable: true, get: function () { return error_1.MongoAPIError; } });
+Object.defineProperty(exports, "MongoAWSError", { enumerable: true, get: function () { return error_1.MongoAWSError; } });
+Object.defineProperty(exports, "MongoAzureError", { enumerable: true, get: function () { return error_1.MongoAzureError; } });
+Object.defineProperty(exports, "MongoBatchReExecutionError", { enumerable: true, get: function () { return error_1.MongoBatchReExecutionError; } });
+Object.defineProperty(exports, "MongoChangeStreamError", { enumerable: true, get: function () { return error_1.MongoChangeStreamError; } });
+Object.defineProperty(exports, "MongoClientBulkWriteCursorError", { enumerable: true, get: function () { return error_1.MongoClientBulkWriteCursorError; } });
+Object.defineProperty(exports, "MongoClientBulkWriteError", { enumerable: true, get: function () { return error_1.MongoClientBulkWriteError; } });
+Object.defineProperty(exports, "MongoClientBulkWriteExecutionError", { enumerable: true, get: function () { return error_1.MongoClientBulkWriteExecutionError; } });
+Object.defineProperty(exports, "MongoCompatibilityError", { enumerable: true, get: function () { return error_1.MongoCompatibilityError; } });
+Object.defineProperty(exports, "MongoCursorExhaustedError", { enumerable: true, get: function () { return error_1.MongoCursorExhaustedError; } });
+Object.defineProperty(exports, "MongoCursorInUseError", { enumerable: true, get: function () { return error_1.MongoCursorInUseError; } });
+Object.defineProperty(exports, "MongoDecompressionError", { enumerable: true, get: function () { return error_1.MongoDecompressionError; } });
+Object.defineProperty(exports, "MongoDriverError", { enumerable: true, get: function () { return error_1.MongoDriverError; } });
+Object.defineProperty(exports, "MongoError", { enumerable: true, get: function () { return error_1.MongoError; } });
+Object.defineProperty(exports, "MongoExpiredSessionError", { enumerable: true, get: function () { return error_1.MongoExpiredSessionError; } });
+Object.defineProperty(exports, "MongoGCPError", { enumerable: true, get: function () { return error_1.MongoGCPError; } });
+Object.defineProperty(exports, "MongoGridFSChunkError", { enumerable: true, get: function () { return error_1.MongoGridFSChunkError; } });
+Object.defineProperty(exports, "MongoGridFSStreamError", { enumerable: true, get: function () { return error_1.MongoGridFSStreamError; } });
+Object.defineProperty(exports, "MongoInvalidArgumentError", { enumerable: true, get: function () { return error_1.MongoInvalidArgumentError; } });
+Object.defineProperty(exports, "MongoKerberosError", { enumerable: true, get: function () { return error_1.MongoKerberosError; } });
+Object.defineProperty(exports, "MongoMissingCredentialsError", { enumerable: true, get: function () { return error_1.MongoMissingCredentialsError; } });
+Object.defineProperty(exports, "MongoMissingDependencyError", { enumerable: true, get: function () { return error_1.MongoMissingDependencyError; } });
+Object.defineProperty(exports, "MongoNetworkError", { enumerable: true, get: function () { return error_1.MongoNetworkError; } });
+Object.defineProperty(exports, "MongoNetworkTimeoutError", { enumerable: true, get: function () { return error_1.MongoNetworkTimeoutError; } });
+Object.defineProperty(exports, "MongoNotConnectedError", { enumerable: true, get: function () { return error_1.MongoNotConnectedError; } });
+Object.defineProperty(exports, "MongoOIDCError", { enumerable: true, get: function () { return error_1.MongoOIDCError; } });
+Object.defineProperty(exports, "MongoOperationTimeoutError", { enumerable: true, get: function () { return error_1.MongoOperationTimeoutError; } });
+Object.defineProperty(exports, "MongoParseError", { enumerable: true, get: function () { return error_1.MongoParseError; } });
+Object.defineProperty(exports, "MongoRuntimeError", { enumerable: true, get: function () { return error_1.MongoRuntimeError; } });
+Object.defineProperty(exports, "MongoServerClosedError", { enumerable: true, get: function () { return error_1.MongoServerClosedError; } });
+Object.defineProperty(exports, "MongoServerError", { enumerable: true, get: function () { return error_1.MongoServerError; } });
+Object.defineProperty(exports, "MongoServerSelectionError", { enumerable: true, get: function () { return error_1.MongoServerSelectionError; } });
+Object.defineProperty(exports, "MongoStalePrimaryError", { enumerable: true, get: function () { return error_1.MongoStalePrimaryError; } });
+Object.defineProperty(exports, "MongoSystemError", { enumerable: true, get: function () { return error_1.MongoSystemError; } });
+Object.defineProperty(exports, "MongoTailableCursorError", { enumerable: true, get: function () { return error_1.MongoTailableCursorError; } });
+Object.defineProperty(exports, "MongoTopologyClosedError", { enumerable: true, get: function () { return error_1.MongoTopologyClosedError; } });
+Object.defineProperty(exports, "MongoTransactionError", { enumerable: true, get: function () { return error_1.MongoTransactionError; } });
+Object.defineProperty(exports, "MongoUnexpectedServerResponseError", { enumerable: true, get: function () { return error_1.MongoUnexpectedServerResponseError; } });
+Object.defineProperty(exports, "MongoWriteConcernError", { enumerable: true, get: function () { return error_1.MongoWriteConcernError; } });
+var resource_management_1 = require("./resource_management");
+Object.defineProperty(exports, "configureExplicitResourceManagement", { enumerable: true, get: function () { return resource_management_1.configureExplicitResourceManagement; } });
+// enums
+var common_2 = require("./bulk/common");
+Object.defineProperty(exports, "BatchType", { enumerable: true, get: function () { return common_2.BatchType; } });
+var auto_encrypter_1 = require("./client-side-encryption/auto_encrypter");
+Object.defineProperty(exports, "AutoEncryptionLoggerLevel", { enumerable: true, get: function () { return auto_encrypter_1.AutoEncryptionLoggerLevel; } });
+var gssapi_1 = require("./cmap/auth/gssapi");
+Object.defineProperty(exports, "GSSAPICanonicalizationValue", { enumerable: true, get: function () { return gssapi_1.GSSAPICanonicalizationValue; } });
+var providers_1 = require("./cmap/auth/providers");
+Object.defineProperty(exports, "AuthMechanism", { enumerable: true, get: function () { return providers_1.AuthMechanism; } });
+var compression_1 = require("./cmap/wire_protocol/compression");
+Object.defineProperty(exports, "Compressor", { enumerable: true, get: function () { return compression_1.Compressor; } });
+var abstract_cursor_2 = require("./cursor/abstract_cursor");
+Object.defineProperty(exports, "CURSOR_FLAGS", { enumerable: true, get: function () { return abstract_cursor_2.CURSOR_FLAGS; } });
+Object.defineProperty(exports, "CursorTimeoutMode", { enumerable: true, get: function () { return abstract_cursor_2.CursorTimeoutMode; } });
+var error_2 = require("./error");
+Object.defineProperty(exports, "MongoErrorLabel", { enumerable: true, get: function () { return error_2.MongoErrorLabel; } });
+var explain_2 = require("./explain");
+Object.defineProperty(exports, "ExplainVerbosity", { enumerable: true, get: function () { return explain_2.ExplainVerbosity; } });
+var mongo_client_2 = require("./mongo_client");
+Object.defineProperty(exports, "ServerApiVersion", { enumerable: true, get: function () { return mongo_client_2.ServerApiVersion; } });
+var find_and_modify_1 = require("./operations/find_and_modify");
+Object.defineProperty(exports, "ReturnDocument", { enumerable: true, get: function () { return find_and_modify_1.ReturnDocument; } });
+var set_profiling_level_1 = require("./operations/set_profiling_level");
+Object.defineProperty(exports, "ProfilingLevel", { enumerable: true, get: function () { return set_profiling_level_1.ProfilingLevel; } });
+var read_concern_1 = require("./read_concern");
+Object.defineProperty(exports, "ReadConcernLevel", { enumerable: true, get: function () { return read_concern_1.ReadConcernLevel; } });
+var read_preference_1 = require("./read_preference");
+Object.defineProperty(exports, "ReadPreferenceMode", { enumerable: true, get: function () { return read_preference_1.ReadPreferenceMode; } });
+var common_3 = require("./sdam/common");
+Object.defineProperty(exports, "ServerType", { enumerable: true, get: function () { return common_3.ServerType; } });
+Object.defineProperty(exports, "TopologyType", { enumerable: true, get: function () { return common_3.TopologyType; } });
+// Helper classes
+var read_concern_2 = require("./read_concern");
+Object.defineProperty(exports, "ReadConcern", { enumerable: true, get: function () { return read_concern_2.ReadConcern; } });
+var read_preference_2 = require("./read_preference");
+Object.defineProperty(exports, "ReadPreference", { enumerable: true, get: function () { return read_preference_2.ReadPreference; } });
+var write_concern_1 = require("./write_concern");
+Object.defineProperty(exports, "WriteConcern", { enumerable: true, get: function () { return write_concern_1.WriteConcern; } });
+// events
+var command_monitoring_events_1 = require("./cmap/command_monitoring_events");
+Object.defineProperty(exports, "CommandFailedEvent", { enumerable: true, get: function () { return command_monitoring_events_1.CommandFailedEvent; } });
+Object.defineProperty(exports, "CommandStartedEvent", { enumerable: true, get: function () { return command_monitoring_events_1.CommandStartedEvent; } });
+Object.defineProperty(exports, "CommandSucceededEvent", { enumerable: true, get: function () { return command_monitoring_events_1.CommandSucceededEvent; } });
+var connection_pool_events_1 = require("./cmap/connection_pool_events");
+Object.defineProperty(exports, "ConnectionCheckedInEvent", { enumerable: true, get: function () { return connection_pool_events_1.ConnectionCheckedInEvent; } });
+Object.defineProperty(exports, "ConnectionCheckedOutEvent", { enumerable: true, get: function () { return connection_pool_events_1.ConnectionCheckedOutEvent; } });
+Object.defineProperty(exports, "ConnectionCheckOutFailedEvent", { enumerable: true, get: function () { return connection_pool_events_1.ConnectionCheckOutFailedEvent; } });
+Object.defineProperty(exports, "ConnectionCheckOutStartedEvent", { enumerable: true, get: function () { return connection_pool_events_1.ConnectionCheckOutStartedEvent; } });
+Object.defineProperty(exports, "ConnectionClosedEvent", { enumerable: true, get: function () { return connection_pool_events_1.ConnectionClosedEvent; } });
+Object.defineProperty(exports, "ConnectionCreatedEvent", { enumerable: true, get: function () { return connection_pool_events_1.ConnectionCreatedEvent; } });
+Object.defineProperty(exports, "ConnectionPoolClearedEvent", { enumerable: true, get: function () { return connection_pool_events_1.ConnectionPoolClearedEvent; } });
+Object.defineProperty(exports, "ConnectionPoolClosedEvent", { enumerable: true, get: function () { return connection_pool_events_1.ConnectionPoolClosedEvent; } });
+Object.defineProperty(exports, "ConnectionPoolCreatedEvent", { enumerable: true, get: function () { return connection_pool_events_1.ConnectionPoolCreatedEvent; } });
+Object.defineProperty(exports, "ConnectionPoolMonitoringEvent", { enumerable: true, get: function () { return connection_pool_events_1.ConnectionPoolMonitoringEvent; } });
+Object.defineProperty(exports, "ConnectionPoolReadyEvent", { enumerable: true, get: function () { return connection_pool_events_1.ConnectionPoolReadyEvent; } });
+Object.defineProperty(exports, "ConnectionReadyEvent", { enumerable: true, get: function () { return connection_pool_events_1.ConnectionReadyEvent; } });
+var events_1 = require("./sdam/events");
+Object.defineProperty(exports, "ServerClosedEvent", { enumerable: true, get: function () { return events_1.ServerClosedEvent; } });
+Object.defineProperty(exports, "ServerDescriptionChangedEvent", { enumerable: true, get: function () { return events_1.ServerDescriptionChangedEvent; } });
+Object.defineProperty(exports, "ServerHeartbeatFailedEvent", { enumerable: true, get: function () { return events_1.ServerHeartbeatFailedEvent; } });
+Object.defineProperty(exports, "ServerHeartbeatStartedEvent", { enumerable: true, get: function () { return events_1.ServerHeartbeatStartedEvent; } });
+Object.defineProperty(exports, "ServerHeartbeatSucceededEvent", { enumerable: true, get: function () { return events_1.ServerHeartbeatSucceededEvent; } });
+Object.defineProperty(exports, "ServerOpeningEvent", { enumerable: true, get: function () { return events_1.ServerOpeningEvent; } });
+Object.defineProperty(exports, "TopologyClosedEvent", { enumerable: true, get: function () { return events_1.TopologyClosedEvent; } });
+Object.defineProperty(exports, "TopologyDescriptionChangedEvent", { enumerable: true, get: function () { return events_1.TopologyDescriptionChangedEvent; } });
+Object.defineProperty(exports, "TopologyOpeningEvent", { enumerable: true, get: function () { return events_1.TopologyOpeningEvent; } });
+var server_selection_events_1 = require("./sdam/server_selection_events");
+Object.defineProperty(exports, "ServerSelectionEvent", { enumerable: true, get: function () { return server_selection_events_1.ServerSelectionEvent; } });
+Object.defineProperty(exports, "ServerSelectionFailedEvent", { enumerable: true, get: function () { return server_selection_events_1.ServerSelectionFailedEvent; } });
+Object.defineProperty(exports, "ServerSelectionStartedEvent", { enumerable: true, get: function () { return server_selection_events_1.ServerSelectionStartedEvent; } });
+Object.defineProperty(exports, "ServerSelectionSucceededEvent", { enumerable: true, get: function () { return server_selection_events_1.ServerSelectionSucceededEvent; } });
+Object.defineProperty(exports, "WaitingForSuitableServerEvent", { enumerable: true, get: function () { return server_selection_events_1.WaitingForSuitableServerEvent; } });
+var srv_polling_1 = require("./sdam/srv_polling");
+Object.defineProperty(exports, "SrvPollingEvent", { enumerable: true, get: function () { return srv_polling_1.SrvPollingEvent; } });
+var errors_1 = require("./client-side-encryption/errors");
+Object.defineProperty(exports, "MongoCryptAzureKMSRequestError", { enumerable: true, get: function () { return errors_1.MongoCryptAzureKMSRequestError; } });
+Object.defineProperty(exports, "MongoCryptCreateDataKeyError", { enumerable: true, get: function () { return errors_1.MongoCryptCreateDataKeyError; } });
+Object.defineProperty(exports, "MongoCryptCreateEncryptedCollectionError", { enumerable: true, get: function () { return errors_1.MongoCryptCreateEncryptedCollectionError; } });
+Object.defineProperty(exports, "MongoCryptError", { enumerable: true, get: function () { return errors_1.MongoCryptError; } });
+Object.defineProperty(exports, "MongoCryptInvalidArgumentError", { enumerable: true, get: function () { return errors_1.MongoCryptInvalidArgumentError; } });
+Object.defineProperty(exports, "MongoCryptKMSRequestNetworkTimeoutError", { enumerable: true, get: function () { return errors_1.MongoCryptKMSRequestNetworkTimeoutError; } });
+var mongo_client_auth_providers_1 = require("./mongo_client_auth_providers");
+Object.defineProperty(exports, "MongoClientAuthProviders", { enumerable: true, get: function () { return mongo_client_auth_providers_1.MongoClientAuthProviders; } });
+//# sourceMappingURL=index.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/index.js.map b/backend/node_modules/mongodb/lib/index.js.map
new file mode 100644
index 0000000..ee3b5d1
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/index.js.map
@@ -0,0 +1 @@
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diff --git a/backend/node_modules/mongodb/lib/mongo_client.js b/backend/node_modules/mongodb/lib/mongo_client.js
new file mode 100644
index 0000000..3612e60
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/mongo_client.js
@@ -0,0 +1,459 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.MongoClient = exports.ServerApiVersion = void 0;
+const fs_1 = require("fs");
+const bson_1 = require("./bson");
+const change_stream_1 = require("./change_stream");
+const mongo_credentials_1 = require("./cmap/auth/mongo_credentials");
+const providers_1 = require("./cmap/auth/providers");
+const connection_string_1 = require("./connection_string");
+const constants_1 = require("./constants");
+const db_1 = require("./db");
+const error_1 = require("./error");
+const mongo_client_auth_providers_1 = require("./mongo_client_auth_providers");
+const mongo_logger_1 = require("./mongo_logger");
+const mongo_types_1 = require("./mongo_types");
+const executor_1 = require("./operations/client_bulk_write/executor");
+const execute_operation_1 = require("./operations/execute_operation");
+const run_command_1 = require("./operations/run_command");
+const read_preference_1 = require("./read_preference");
+const resource_management_1 = require("./resource_management");
+const server_selection_1 = require("./sdam/server_selection");
+const topology_1 = require("./sdam/topology");
+const sessions_1 = require("./sessions");
+const utils_1 = require("./utils");
+/** @public */
+exports.ServerApiVersion = Object.freeze({
+    v1: '1'
+});
+/** @internal */
+const kOptions = Symbol('options');
+/**
+ * The **MongoClient** class is a class that allows for making Connections to MongoDB.
+ * @public
+ *
+ * @remarks
+ * The programmatically provided options take precedence over the URI options.
+ *
+ * @example
+ * ```ts
+ * import { MongoClient } from 'mongodb';
+ *
+ * // Enable command monitoring for debugging
+ * const client = new MongoClient('mongodb://localhost:27017', { monitorCommands: true });
+ *
+ * client.on('commandStarted', started => console.log(started));
+ * client.db().collection('pets');
+ * await client.insertOne({ name: 'spot', kind: 'dog' });
+ * ```
+ */
+class MongoClient extends mongo_types_1.TypedEventEmitter {
+    constructor(url, options) {
+        super();
+        this[kOptions] = (0, connection_string_1.parseOptions)(url, this, options);
+        const shouldSetLogger = Object.values(this[kOptions].mongoLoggerOptions.componentSeverities).some(value => value !== mongo_logger_1.SeverityLevel.OFF);
+        this.mongoLogger = shouldSetLogger
+            ? new mongo_logger_1.MongoLogger(this[kOptions].mongoLoggerOptions)
+            : undefined;
+        // eslint-disable-next-line @typescript-eslint/no-this-alias
+        const client = this;
+        // The internal state
+        this.s = {
+            url,
+            bsonOptions: (0, bson_1.resolveBSONOptions)(this[kOptions]),
+            namespace: (0, utils_1.ns)('admin'),
+            hasBeenClosed: false,
+            sessionPool: new sessions_1.ServerSessionPool(this),
+            activeSessions: new Set(),
+            authProviders: new mongo_client_auth_providers_1.MongoClientAuthProviders(),
+            get options() {
+                return client[kOptions];
+            },
+            get readConcern() {
+                return client[kOptions].readConcern;
+            },
+            get writeConcern() {
+                return client[kOptions].writeConcern;
+            },
+            get readPreference() {
+                return client[kOptions].readPreference;
+            },
+            get isMongoClient() {
+                return true;
+            }
+        };
+        this.checkForNonGenuineHosts();
+    }
+    /** @internal */
+    async asyncDispose() {
+        await this.close();
+    }
+    /** @internal */
+    checkForNonGenuineHosts() {
+        const documentDBHostnames = this[kOptions].hosts.filter((hostAddress) => (0, utils_1.isHostMatch)(utils_1.DOCUMENT_DB_CHECK, hostAddress.host));
+        const srvHostIsDocumentDB = (0, utils_1.isHostMatch)(utils_1.DOCUMENT_DB_CHECK, this[kOptions].srvHost);
+        const cosmosDBHostnames = this[kOptions].hosts.filter((hostAddress) => (0, utils_1.isHostMatch)(utils_1.COSMOS_DB_CHECK, hostAddress.host));
+        const srvHostIsCosmosDB = (0, utils_1.isHostMatch)(utils_1.COSMOS_DB_CHECK, this[kOptions].srvHost);
+        if (documentDBHostnames.length !== 0 || srvHostIsDocumentDB) {
+            this.mongoLogger?.info('client', utils_1.DOCUMENT_DB_MSG);
+        }
+        else if (cosmosDBHostnames.length !== 0 || srvHostIsCosmosDB) {
+            this.mongoLogger?.info('client', utils_1.COSMOS_DB_MSG);
+        }
+    }
+    /** @see MongoOptions */
+    get options() {
+        return Object.freeze({ ...this[kOptions] });
+    }
+    get serverApi() {
+        return this[kOptions].serverApi && Object.freeze({ ...this[kOptions].serverApi });
+    }
+    /**
+     * Intended for APM use only
+     * @internal
+     */
+    get monitorCommands() {
+        return this[kOptions].monitorCommands;
+    }
+    set monitorCommands(value) {
+        this[kOptions].monitorCommands = value;
+    }
+    /** @internal */
+    get autoEncrypter() {
+        return this[kOptions].autoEncrypter;
+    }
+    get readConcern() {
+        return this.s.readConcern;
+    }
+    get writeConcern() {
+        return this.s.writeConcern;
+    }
+    get readPreference() {
+        return this.s.readPreference;
+    }
+    get bsonOptions() {
+        return this.s.bsonOptions;
+    }
+    get timeoutMS() {
+        return this.s.options.timeoutMS;
+    }
+    /**
+     * Executes a client bulk write operation, available on server 8.0+.
+     * @param models - The client bulk write models.
+     * @param options - The client bulk write options.
+     * @returns A ClientBulkWriteResult for acknowledged writes and ok: 1 for unacknowledged writes.
+     */
+    async bulkWrite(models, options) {
+        if (this.autoEncrypter) {
+            throw new error_1.MongoInvalidArgumentError('MongoClient bulkWrite does not currently support automatic encryption.');
+        }
+        // We do not need schema type information past this point ("as any" is fine)
+        return await new executor_1.ClientBulkWriteExecutor(this, models, (0, utils_1.resolveOptions)(this, options)).execute();
+    }
+    /**
+     * Connect to MongoDB using a url
+     *
+     * @remarks
+     * Calling `connect` is optional since the first operation you perform will call `connect` if it's needed.
+     * `timeoutMS` will bound the time any operation can take before throwing a timeout error.
+     * However, when the operation being run is automatically connecting your `MongoClient` the `timeoutMS` will not apply to the time taken to connect the MongoClient.
+     * This means the time to setup the `MongoClient` does not count against `timeoutMS`.
+     * If you are using `timeoutMS` we recommend connecting your client explicitly in advance of any operation to avoid this inconsistent execution time.
+     *
+     * @see docs.mongodb.org/manual/reference/connection-string/
+     */
+    async connect() {
+        if (this.connectionLock) {
+            return await this.connectionLock;
+        }
+        try {
+            this.connectionLock = this._connect();
+            await this.connectionLock;
+        }
+        finally {
+            // release
+            this.connectionLock = undefined;
+        }
+        return this;
+    }
+    /**
+     * Create a topology to open the connection, must be locked to avoid topology leaks in concurrency scenario.
+     * Locking is enforced by the connect method.
+     *
+     * @internal
+     */
+    async _connect() {
+        if (this.topology && this.topology.isConnected()) {
+            return this;
+        }
+        const options = this[kOptions];
+        if (options.tls) {
+            if (typeof options.tlsCAFile === 'string') {
+                options.ca ??= await fs_1.promises.readFile(options.tlsCAFile);
+            }
+            if (typeof options.tlsCRLFile === 'string') {
+                options.crl ??= await fs_1.promises.readFile(options.tlsCRLFile);
+            }
+            if (typeof options.tlsCertificateKeyFile === 'string') {
+                if (!options.key || !options.cert) {
+                    const contents = await fs_1.promises.readFile(options.tlsCertificateKeyFile);
+                    options.key ??= contents;
+                    options.cert ??= contents;
+                }
+            }
+        }
+        if (typeof options.srvHost === 'string') {
+            const hosts = await (0, connection_string_1.resolveSRVRecord)(options);
+            for (const [index, host] of hosts.entries()) {
+                options.hosts[index] = host;
+            }
+        }
+        // It is important to perform validation of hosts AFTER SRV resolution, to check the real hostname,
+        // but BEFORE we even attempt connecting with a potentially not allowed hostname
+        if (options.credentials?.mechanism === providers_1.AuthMechanism.MONGODB_OIDC) {
+            const allowedHosts = options.credentials?.mechanismProperties?.ALLOWED_HOSTS || mongo_credentials_1.DEFAULT_ALLOWED_HOSTS;
+            const isServiceAuth = !!options.credentials?.mechanismProperties?.ENVIRONMENT;
+            if (!isServiceAuth) {
+                for (const host of options.hosts) {
+                    if (!(0, utils_1.hostMatchesWildcards)(host.toHostPort().host, allowedHosts)) {
+                        throw new error_1.MongoInvalidArgumentError(`Host '${host}' is not valid for OIDC authentication with ALLOWED_HOSTS of '${allowedHosts.join(',')}'`);
+                    }
+                }
+            }
+        }
+        this.topology = new topology_1.Topology(this, options.hosts, options);
+        // Events can be emitted before initialization is complete so we have to
+        // save the reference to the topology on the client ASAP if the event handlers need to access it
+        this.topology.once(topology_1.Topology.OPEN, () => this.emit('open', this));
+        for (const event of constants_1.MONGO_CLIENT_EVENTS) {
+            this.topology.on(event, (...args) => this.emit(event, ...args));
+        }
+        const topologyConnect = async () => {
+            try {
+                await this.topology?.connect(options);
+            }
+            catch (error) {
+                this.topology?.close();
+                throw error;
+            }
+        };
+        if (this.autoEncrypter) {
+            await this.autoEncrypter?.init();
+            await topologyConnect();
+            await options.encrypter.connectInternalClient();
+        }
+        else {
+            await topologyConnect();
+        }
+        return this;
+    }
+    /**
+     * Cleans up client-side resources used by the MongoCLient and .  This includes:
+     *
+     * - Closes all open, unused connections (see note).
+     * - Ends all in-use sessions with {@link ClientSession#endSession|ClientSession.endSession()}.
+     * - Ends all unused sessions server-side.
+     * - Cleans up any resources being used for auto encryption if auto encryption is enabled.
+     *
+     * @remarks Any in-progress operations are not killed and any connections used by in progress operations
+     * will be cleaned up lazily as operations finish.
+     *
+     * @param force - Force close, emitting no events
+     */
+    async close(force = false) {
+        // There's no way to set hasBeenClosed back to false
+        Object.defineProperty(this.s, 'hasBeenClosed', {
+            value: true,
+            enumerable: true,
+            configurable: false,
+            writable: false
+        });
+        const activeSessionEnds = Array.from(this.s.activeSessions, session => session.endSession());
+        this.s.activeSessions.clear();
+        await Promise.all(activeSessionEnds);
+        if (this.topology == null) {
+            return;
+        }
+        // If we would attempt to select a server and get nothing back we short circuit
+        // to avoid the server selection timeout.
+        const selector = (0, server_selection_1.readPreferenceServerSelector)(read_preference_1.ReadPreference.primaryPreferred);
+        const topologyDescription = this.topology.description;
+        const serverDescriptions = Array.from(topologyDescription.servers.values());
+        const servers = selector(topologyDescription, serverDescriptions);
+        if (servers.length !== 0) {
+            const endSessions = Array.from(this.s.sessionPool.sessions, ({ id }) => id);
+            if (endSessions.length !== 0) {
+                try {
+                    await (0, execute_operation_1.executeOperation)(this, new run_command_1.RunAdminCommandOperation({ endSessions }, { readPreference: read_preference_1.ReadPreference.primaryPreferred, noResponse: true }));
+                }
+                catch (error) {
+                    (0, utils_1.squashError)(error);
+                }
+            }
+        }
+        // clear out references to old topology
+        const topology = this.topology;
+        this.topology = undefined;
+        topology.close();
+        const { encrypter } = this[kOptions];
+        if (encrypter) {
+            await encrypter.close(this, force);
+        }
+    }
+    /**
+     * Create a new Db instance sharing the current socket connections.
+     *
+     * @param dbName - The name of the database we want to use. If not provided, use database name from connection string.
+     * @param options - Optional settings for Db construction
+     */
+    db(dbName, options) {
+        options = options ?? {};
+        // Default to db from connection string if not provided
+        if (!dbName) {
+            dbName = this.s.options.dbName;
+        }
+        // Copy the options and add out internal override of the not shared flag
+        const finalOptions = Object.assign({}, this[kOptions], options);
+        // Return the db object
+        const db = new db_1.Db(this, dbName, finalOptions);
+        // Return the database
+        return db;
+    }
+    /**
+     * Connect to MongoDB using a url
+     *
+     * @remarks
+     * Calling `connect` is optional since the first operation you perform will call `connect` if it's needed.
+     * `timeoutMS` will bound the time any operation can take before throwing a timeout error.
+     * However, when the operation being run is automatically connecting your `MongoClient` the `timeoutMS` will not apply to the time taken to connect the MongoClient.
+     * This means the time to setup the `MongoClient` does not count against `timeoutMS`.
+     * If you are using `timeoutMS` we recommend connecting your client explicitly in advance of any operation to avoid this inconsistent execution time.
+     *
+     * @remarks
+     * The programmatically provided options take precedence over the URI options.
+     *
+     * @see https://www.mongodb.com/docs/manual/reference/connection-string/
+     */
+    static async connect(url, options) {
+        const client = new this(url, options);
+        return await client.connect();
+    }
+    /**
+     * Creates a new ClientSession. When using the returned session in an operation
+     * a corresponding ServerSession will be created.
+     *
+     * @remarks
+     * A ClientSession instance may only be passed to operations being performed on the same
+     * MongoClient it was started from.
+     */
+    startSession(options) {
+        const session = new sessions_1.ClientSession(this, this.s.sessionPool, { explicit: true, ...options }, this[kOptions]);
+        this.s.activeSessions.add(session);
+        session.once('ended', () => {
+            this.s.activeSessions.delete(session);
+        });
+        return session;
+    }
+    async withSession(optionsOrExecutor, executor) {
+        const options = {
+            // Always define an owner
+            owner: Symbol(),
+            // If it's an object inherit the options
+            ...(typeof optionsOrExecutor === 'object' ? optionsOrExecutor : {})
+        };
+        const withSessionCallback = typeof optionsOrExecutor === 'function' ? optionsOrExecutor : executor;
+        if (withSessionCallback == null) {
+            throw new error_1.MongoInvalidArgumentError('Missing required callback parameter');
+        }
+        const session = this.startSession(options);
+        try {
+            return await withSessionCallback(session);
+        }
+        finally {
+            try {
+                await session.endSession();
+            }
+            catch (error) {
+                (0, utils_1.squashError)(error);
+            }
+        }
+    }
+    /**
+     * Create a new Change Stream, watching for new changes (insertions, updates,
+     * replacements, deletions, and invalidations) in this cluster. Will ignore all
+     * changes to system collections, as well as the local, admin, and config databases.
+     *
+     * @remarks
+     * watch() accepts two generic arguments for distinct use cases:
+     * - The first is to provide the schema that may be defined for all the data within the current cluster
+     * - The second is to override the shape of the change stream document entirely, if it is not provided the type will default to ChangeStreamDocument of the first argument
+     *
+     * @remarks
+     * When `timeoutMS` is configured for a change stream, it will have different behaviour depending
+     * on whether the change stream is in iterator mode or emitter mode. In both cases, a change
+     * stream will time out if it does not receive a change event within `timeoutMS` of the last change
+     * event.
+     *
+     * Note that if a change stream is consistently timing out when watching a collection, database or
+     * client that is being changed, then this may be due to the server timing out before it can finish
+     * processing the existing oplog. To address this, restart the change stream with a higher
+     * `timeoutMS`.
+     *
+     * If the change stream times out the initial aggregate operation to establish the change stream on
+     * the server, then the client will close the change stream. If the getMore calls to the server
+     * time out, then the change stream will be left open, but will throw a MongoOperationTimeoutError
+     * when in iterator mode and emit an error event that returns a MongoOperationTimeoutError in
+     * emitter mode.
+     *
+     * To determine whether or not the change stream is still open following a timeout, check the
+     * {@link ChangeStream.closed} getter.
+     *
+     * @example
+     * In iterator mode, if a next() call throws a timeout error, it will attempt to resume the change stream.
+     * The next call can just be retried after this succeeds.
+     * ```ts
+     * const changeStream = collection.watch([], { timeoutMS: 100 });
+     * try {
+     *     await changeStream.next();
+     * } catch (e) {
+     *     if (e instanceof MongoOperationTimeoutError && !changeStream.closed) {
+     *       await changeStream.next();
+     *     }
+     *     throw e;
+     * }
+     * ```
+     *
+     * @example
+     * In emitter mode, if the change stream goes `timeoutMS` without emitting a change event, it will
+     * emit an error event that returns a MongoOperationTimeoutError, but will not close the change
+     * stream unless the resume attempt fails. There is no need to re-establish change listeners as
+     * this will automatically continue emitting change events once the resume attempt completes.
+     *
+     * ```ts
+     * const changeStream = collection.watch([], { timeoutMS: 100 });
+     * changeStream.on('change', console.log);
+     * changeStream.on('error', e => {
+     *     if (e instanceof MongoOperationTimeoutError && !changeStream.closed) {
+     *         // do nothing
+     *     } else {
+     *         changeStream.close();
+     *     }
+     * });
+     * ```
+     * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents. This allows for filtering (using $match) and manipulating the change stream documents.
+     * @param options - Optional settings for the command
+     * @typeParam TSchema - Type of the data being detected by the change stream
+     * @typeParam TChange - Type of the whole change stream document emitted
+     */
+    watch(pipeline = [], options = {}) {
+        // Allow optionally not specifying a pipeline
+        if (!Array.isArray(pipeline)) {
+            options = pipeline;
+            pipeline = [];
+        }
+        return new change_stream_1.ChangeStream(this, pipeline, (0, utils_1.resolveOptions)(this, options));
+    }
+}
+exports.MongoClient = MongoClient;
+(0, resource_management_1.configureResourceManagement)(MongoClient.prototype);
+//# sourceMappingURL=mongo_client.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/mongo_client.js.map b/backend/node_modules/mongodb/lib/mongo_client.js.map
new file mode 100644
index 0000000..563facc
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/mongo_client.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/mongo_client_auth_providers.js b/backend/node_modules/mongodb/lib/mongo_client_auth_providers.js
new file mode 100644
index 0000000..c90da77
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/mongo_client_auth_providers.js
@@ -0,0 +1,89 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.MongoClientAuthProviders = void 0;
+const gssapi_1 = require("./cmap/auth/gssapi");
+const mongodb_aws_1 = require("./cmap/auth/mongodb_aws");
+const mongodb_oidc_1 = require("./cmap/auth/mongodb_oidc");
+const automated_callback_workflow_1 = require("./cmap/auth/mongodb_oidc/automated_callback_workflow");
+const human_callback_workflow_1 = require("./cmap/auth/mongodb_oidc/human_callback_workflow");
+const token_cache_1 = require("./cmap/auth/mongodb_oidc/token_cache");
+const plain_1 = require("./cmap/auth/plain");
+const providers_1 = require("./cmap/auth/providers");
+const scram_1 = require("./cmap/auth/scram");
+const x509_1 = require("./cmap/auth/x509");
+const error_1 = require("./error");
+/** @internal */
+const AUTH_PROVIDERS = new Map([
+    [providers_1.AuthMechanism.MONGODB_AWS, () => new mongodb_aws_1.MongoDBAWS()],
+    [
+        providers_1.AuthMechanism.MONGODB_CR,
+        () => {
+            throw new error_1.MongoInvalidArgumentError('MONGODB-CR is no longer a supported auth mechanism in MongoDB 4.0+');
+        }
+    ],
+    [providers_1.AuthMechanism.MONGODB_GSSAPI, () => new gssapi_1.GSSAPI()],
+    [providers_1.AuthMechanism.MONGODB_OIDC, (workflow) => new mongodb_oidc_1.MongoDBOIDC(workflow)],
+    [providers_1.AuthMechanism.MONGODB_PLAIN, () => new plain_1.Plain()],
+    [providers_1.AuthMechanism.MONGODB_SCRAM_SHA1, () => new scram_1.ScramSHA1()],
+    [providers_1.AuthMechanism.MONGODB_SCRAM_SHA256, () => new scram_1.ScramSHA256()],
+    [providers_1.AuthMechanism.MONGODB_X509, () => new x509_1.X509()]
+]);
+/**
+ * Create a set of providers per client
+ * to avoid sharing the provider's cache between different clients.
+ * @internal
+ */
+class MongoClientAuthProviders {
+    constructor() {
+        this.existingProviders = new Map();
+    }
+    /**
+     * Get or create an authentication provider based on the provided mechanism.
+     * We don't want to create all providers at once, as some providers may not be used.
+     * @param name - The name of the provider to get or create.
+     * @param credentials - The credentials.
+     * @returns The provider.
+     * @throws MongoInvalidArgumentError if the mechanism is not supported.
+     * @internal
+     */
+    getOrCreateProvider(name, authMechanismProperties) {
+        const authProvider = this.existingProviders.get(name);
+        if (authProvider) {
+            return authProvider;
+        }
+        const providerFunction = AUTH_PROVIDERS.get(name);
+        if (!providerFunction) {
+            throw new error_1.MongoInvalidArgumentError(`authMechanism ${name} not supported`);
+        }
+        let provider;
+        if (name === providers_1.AuthMechanism.MONGODB_OIDC) {
+            provider = providerFunction(this.getWorkflow(authMechanismProperties));
+        }
+        else {
+            provider = providerFunction();
+        }
+        this.existingProviders.set(name, provider);
+        return provider;
+    }
+    /**
+     * Gets either a device workflow or callback workflow.
+     */
+    getWorkflow(authMechanismProperties) {
+        if (authMechanismProperties.OIDC_HUMAN_CALLBACK) {
+            return new human_callback_workflow_1.HumanCallbackWorkflow(new token_cache_1.TokenCache(), authMechanismProperties.OIDC_HUMAN_CALLBACK);
+        }
+        else if (authMechanismProperties.OIDC_CALLBACK) {
+            return new automated_callback_workflow_1.AutomatedCallbackWorkflow(new token_cache_1.TokenCache(), authMechanismProperties.OIDC_CALLBACK);
+        }
+        else {
+            const environment = authMechanismProperties.ENVIRONMENT;
+            const workflow = mongodb_oidc_1.OIDC_WORKFLOWS.get(environment)?.();
+            if (!workflow) {
+                throw new error_1.MongoInvalidArgumentError(`Could not load workflow for environment ${authMechanismProperties.ENVIRONMENT}`);
+            }
+            return workflow;
+        }
+    }
+}
+exports.MongoClientAuthProviders = MongoClientAuthProviders;
+//# sourceMappingURL=mongo_client_auth_providers.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/mongo_client_auth_providers.js.map b/backend/node_modules/mongodb/lib/mongo_client_auth_providers.js.map
new file mode 100644
index 0000000..ca1c6e4
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/mongo_client_auth_providers.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"mongo_client_auth_providers.js","sourceRoot":"","sources":["../src/mongo_client_auth_providers.ts"],"names":[],"mappings":";;;AACA,+CAA4C;AAE5C,yDAAqD;AACrD,2DAAsF;AACtF,sGAAiG;AACjG,8FAAyF;AACzF,sEAAkE;AAClE,6CAA0C;AAC1C,qDAAsD;AACtD,6CAA2D;AAC3D,2CAAwC;AACxC,mCAAoD;AAEpD,gBAAgB;AAChB,MAAM,cAAc,GAAG,IAAI,GAAG,CAAgE;IAC5F,CAAC,yBAAa,CAAC,WAAW,EAAE,GAAG,EAAE,CAAC,IAAI,wBAAU,EAAE,CAAC;IACnD;QACE,yBAAa,CAAC,UAAU;QACxB,GAAG,EAAE;YACH,MAAM,IAAI,iCAAyB,CACjC,oEAAoE,CACrE,CAAC;QACJ,CAAC;KACF;IACD,CAAC,yBAAa,CAAC,cAAc,EAAE,GAAG,EAAE,CAAC,IAAI,eAAM,EAAE,CAAC;IAClD,CAAC,yBAAa,CAAC,YAAY,EAAE,CAAC,QAAmB,EAAE,EAAE,CAAC,IAAI,0BAAW,CAAC,QAAQ,CAAC,CAAC;IAChF,CAAC,yBAAa,CAAC,aAAa,EAAE,GAAG,EAAE,CAAC,IAAI,aAAK,EAAE,CAAC;IAChD,CAAC,yBAAa,CAAC,kBAAkB,EAAE,GAAG,EAAE,CAAC,IAAI,iBAAS,EAAE,CAAC;IACzD,CAAC,yBAAa,CAAC,oBAAoB,EAAE,GAAG,EAAE,CAAC,IAAI,mBAAW,EAAE,CAAC;IAC7D,CAAC,yBAAa,CAAC,YAAY,EAAE,GAAG,EAAE,CAAC,IAAI,WAAI,EAAE,CAAC;CAC/C,CAAC,CAAC;AAEH;;;;GAIG;AACH,MAAa,wBAAwB;IAArC;QACU,sBAAiB,GAA8C,IAAI,GAAG,EAAE,CAAC;IA0DnF,CAAC;IAxDC;;;;;;;;OAQG;IACH,mBAAmB,CACjB,IAA4B,EAC5B,uBAAgD;QAEhD,MAAM,YAAY,GAAG,IAAI,CAAC,iBAAiB,CAAC,GAAG,CAAC,IAAI,CAAC,CAAC;QACtD,IAAI,YAAY,EAAE,CAAC;YACjB,OAAO,YAAY,CAAC;QACtB,CAAC;QAED,MAAM,gBAAgB,GAAG,cAAc,CAAC,GAAG,CAAC,IAAI,CAAC,CAAC;QAClD,IAAI,CAAC,gBAAgB,EAAE,CAAC;YACtB,MAAM,IAAI,iCAAyB,CAAC,iBAAiB,IAAI,gBAAgB,CAAC,CAAC;QAC7E,CAAC;QAED,IAAI,QAAQ,CAAC;QACb,IAAI,IAAI,KAAK,yBAAa,CAAC,YAAY,EAAE,CAAC;YACxC,QAAQ,GAAG,gBAAgB,CAAC,IAAI,CAAC,WAAW,CAAC,uBAAuB,CAAC,CAAC,CAAC;QACzE,CAAC;aAAM,CAAC;YACN,QAAQ,GAAG,gBAAgB,EAAE,CAAC;QAChC,CAAC;QAED,IAAI,CAAC,iBAAiB,CAAC,GAAG,CAAC,IAAI,EAAE,QAAQ,CAAC,CAAC;QAC3C,OAAO,QAAQ,CAAC;IAClB,CAAC;IAED;;OAEG;IACH,WAAW,CAAC,uBAAgD;QAC1D,IAAI,uBAAuB,CAAC,mBAAmB,EAAE,CAAC;YAChD,OAAO,IAAI,+CAAqB,CAC9B,IAAI,wBAAU,EAAE,EAChB,uBAAuB,CAAC,mBAAmB,CAC5C,CAAC;QACJ,CAAC;aAAM,IAAI,uBAAuB,CAAC,aAAa,EAAE,CAAC;YACjD,OAAO,IAAI,uDAAyB,CAAC,IAAI,wBAAU,EAAE,EAAE,uBAAuB,CAAC,aAAa,CAAC,CAAC;QAChG,CAAC;aAAM,CAAC;YACN,MAAM,WAAW,GAAG,uBAAuB,CAAC,WAAW,CAAC;YACxD,MAAM,QAAQ,GAAG,6BAAc,CAAC,GAAG,CAAC,WAAW,CAAC,EAAE,EAAE,CAAC;YACrD,IAAI,CAAC,QAAQ,EAAE,CAAC;gBACd,MAAM,IAAI,iCAAyB,CACjC,2CAA2C,uBAAuB,CAAC,WAAW,EAAE,CACjF,CAAC;YACJ,CAAC;YACD,OAAO,QAAQ,CAAC;QAClB,CAAC;IACH,CAAC;CACF;AA3DD,4DA2DC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/mongo_logger.js b/backend/node_modules/mongodb/lib/mongo_logger.js
new file mode 100644
index 0000000..be73651
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/mongo_logger.js
@@ -0,0 +1,551 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.MongoLogger = exports.MongoLoggableComponent = exports.SEVERITY_LEVEL_MAP = exports.DEFAULT_MAX_DOCUMENT_LENGTH = exports.SeverityLevel = void 0;
+exports.parseSeverityFromString = parseSeverityFromString;
+exports.createStdioLogger = createStdioLogger;
+exports.stringifyWithMaxLen = stringifyWithMaxLen;
+exports.defaultLogTransform = defaultLogTransform;
+const util_1 = require("util");
+const bson_1 = require("./bson");
+const constants_1 = require("./constants");
+const utils_1 = require("./utils");
+/** @internal */
+exports.SeverityLevel = Object.freeze({
+    EMERGENCY: 'emergency',
+    ALERT: 'alert',
+    CRITICAL: 'critical',
+    ERROR: 'error',
+    WARNING: 'warn',
+    NOTICE: 'notice',
+    INFORMATIONAL: 'info',
+    DEBUG: 'debug',
+    TRACE: 'trace',
+    OFF: 'off'
+});
+/** @internal */
+exports.DEFAULT_MAX_DOCUMENT_LENGTH = 1000;
+/** @internal */
+class SeverityLevelMap extends Map {
+    constructor(entries) {
+        const newEntries = [];
+        for (const [level, value] of entries) {
+            newEntries.push([value, level]);
+        }
+        newEntries.push(...entries);
+        super(newEntries);
+    }
+    getNumericSeverityLevel(severity) {
+        return this.get(severity);
+    }
+    getSeverityLevelName(level) {
+        return this.get(level);
+    }
+}
+/** @internal */
+exports.SEVERITY_LEVEL_MAP = new SeverityLevelMap([
+    [exports.SeverityLevel.OFF, -Infinity],
+    [exports.SeverityLevel.EMERGENCY, 0],
+    [exports.SeverityLevel.ALERT, 1],
+    [exports.SeverityLevel.CRITICAL, 2],
+    [exports.SeverityLevel.ERROR, 3],
+    [exports.SeverityLevel.WARNING, 4],
+    [exports.SeverityLevel.NOTICE, 5],
+    [exports.SeverityLevel.INFORMATIONAL, 6],
+    [exports.SeverityLevel.DEBUG, 7],
+    [exports.SeverityLevel.TRACE, 8]
+]);
+/** @internal */
+exports.MongoLoggableComponent = Object.freeze({
+    COMMAND: 'command',
+    TOPOLOGY: 'topology',
+    SERVER_SELECTION: 'serverSelection',
+    CONNECTION: 'connection',
+    CLIENT: 'client'
+});
+/**
+ * Parses a string as one of SeverityLevel
+ * @internal
+ *
+ * @param s - the value to be parsed
+ * @returns one of SeverityLevel if value can be parsed as such, otherwise null
+ */
+function parseSeverityFromString(s) {
+    const validSeverities = Object.values(exports.SeverityLevel);
+    const lowerSeverity = s?.toLowerCase();
+    if (lowerSeverity != null && validSeverities.includes(lowerSeverity)) {
+        return lowerSeverity;
+    }
+    return null;
+}
+/** @internal */
+function createStdioLogger(stream) {
+    return {
+        write: (0, util_1.promisify)((log, cb) => {
+            const logLine = (0, util_1.inspect)(log, { compact: true, breakLength: Infinity });
+            stream.write(`${logLine}\n`, 'utf-8', cb);
+            return;
+        })
+    };
+}
+/**
+ * resolves the MONGODB_LOG_PATH and mongodbLogPath options from the environment and the
+ * mongo client options respectively. The mongodbLogPath can be either 'stdout', 'stderr', a NodeJS
+ * Writable or an object which has a `write` method with the signature:
+ * ```ts
+ * write(log: Log): void
+ * ```
+ *
+ * @returns the MongoDBLogWritable object to write logs to
+ */
+function resolveLogPath({ MONGODB_LOG_PATH }, { mongodbLogPath }) {
+    if (typeof mongodbLogPath === 'string' && /^stderr$/i.test(mongodbLogPath)) {
+        return { mongodbLogPath: createStdioLogger(process.stderr), mongodbLogPathIsStdErr: true };
+    }
+    if (typeof mongodbLogPath === 'string' && /^stdout$/i.test(mongodbLogPath)) {
+        return { mongodbLogPath: createStdioLogger(process.stdout), mongodbLogPathIsStdErr: false };
+    }
+    if (typeof mongodbLogPath === 'object' && typeof mongodbLogPath?.write === 'function') {
+        return { mongodbLogPath: mongodbLogPath, mongodbLogPathIsStdErr: false };
+    }
+    if (MONGODB_LOG_PATH && /^stderr$/i.test(MONGODB_LOG_PATH)) {
+        return { mongodbLogPath: createStdioLogger(process.stderr), mongodbLogPathIsStdErr: true };
+    }
+    if (MONGODB_LOG_PATH && /^stdout$/i.test(MONGODB_LOG_PATH)) {
+        return { mongodbLogPath: createStdioLogger(process.stdout), mongodbLogPathIsStdErr: false };
+    }
+    return { mongodbLogPath: createStdioLogger(process.stderr), mongodbLogPathIsStdErr: true };
+}
+function resolveSeverityConfiguration(clientOption, environmentOption, defaultSeverity) {
+    return (parseSeverityFromString(clientOption) ??
+        parseSeverityFromString(environmentOption) ??
+        defaultSeverity);
+}
+function compareSeverity(s0, s1) {
+    const s0Num = exports.SEVERITY_LEVEL_MAP.getNumericSeverityLevel(s0);
+    const s1Num = exports.SEVERITY_LEVEL_MAP.getNumericSeverityLevel(s1);
+    return s0Num < s1Num ? -1 : s0Num > s1Num ? 1 : 0;
+}
+/** @internal */
+function stringifyWithMaxLen(value, maxDocumentLength, options = {}) {
+    let strToTruncate = '';
+    if (typeof value === 'string') {
+        strToTruncate = value;
+    }
+    else if (typeof value === 'function') {
+        strToTruncate = value.name;
+    }
+    else {
+        try {
+            strToTruncate = bson_1.EJSON.stringify(value, options);
+        }
+        catch (e) {
+            strToTruncate = `Extended JSON serialization failed with: ${e.message}`;
+        }
+    }
+    // handle truncation that occurs in the middle of multi-byte codepoints
+    if (maxDocumentLength !== 0 &&
+        strToTruncate.length > maxDocumentLength &&
+        strToTruncate.charCodeAt(maxDocumentLength - 1) !==
+            strToTruncate.codePointAt(maxDocumentLength - 1)) {
+        maxDocumentLength--;
+        if (maxDocumentLength === 0) {
+            return '';
+        }
+    }
+    return maxDocumentLength !== 0 && strToTruncate.length > maxDocumentLength
+        ? `${strToTruncate.slice(0, maxDocumentLength)}...`
+        : strToTruncate;
+}
+function isLogConvertible(obj) {
+    const objAsLogConvertible = obj;
+    // eslint-disable-next-line no-restricted-syntax
+    return objAsLogConvertible.toLog !== undefined && typeof objAsLogConvertible.toLog === 'function';
+}
+function attachServerSelectionFields(log, serverSelectionEvent, maxDocumentLength = exports.DEFAULT_MAX_DOCUMENT_LENGTH) {
+    const { selector, operation, topologyDescription, message } = serverSelectionEvent;
+    log.selector = stringifyWithMaxLen(selector, maxDocumentLength);
+    log.operation = operation;
+    log.topologyDescription = stringifyWithMaxLen(topologyDescription, maxDocumentLength);
+    log.message = message;
+    return log;
+}
+function attachCommandFields(log, commandEvent) {
+    log.commandName = commandEvent.commandName;
+    log.requestId = commandEvent.requestId;
+    log.driverConnectionId = commandEvent.connectionId;
+    const { host, port } = utils_1.HostAddress.fromString(commandEvent.address).toHostPort();
+    log.serverHost = host;
+    log.serverPort = port;
+    if (commandEvent?.serviceId) {
+        log.serviceId = commandEvent.serviceId.toHexString();
+    }
+    log.databaseName = commandEvent.databaseName;
+    log.serverConnectionId = commandEvent.serverConnectionId;
+    return log;
+}
+function attachConnectionFields(log, event) {
+    const { host, port } = utils_1.HostAddress.fromString(event.address).toHostPort();
+    log.serverHost = host;
+    log.serverPort = port;
+    return log;
+}
+function attachSDAMFields(log, sdamEvent) {
+    log.topologyId = sdamEvent.topologyId;
+    return log;
+}
+function attachServerHeartbeatFields(log, serverHeartbeatEvent) {
+    const { awaited, connectionId } = serverHeartbeatEvent;
+    log.awaited = awaited;
+    log.driverConnectionId = serverHeartbeatEvent.connectionId;
+    const { host, port } = utils_1.HostAddress.fromString(connectionId).toHostPort();
+    log.serverHost = host;
+    log.serverPort = port;
+    return log;
+}
+/** @internal */
+function defaultLogTransform(logObject, maxDocumentLength = exports.DEFAULT_MAX_DOCUMENT_LENGTH) {
+    let log = Object.create(null);
+    switch (logObject.name) {
+        case constants_1.SERVER_SELECTION_STARTED:
+            log = attachServerSelectionFields(log, logObject, maxDocumentLength);
+            return log;
+        case constants_1.SERVER_SELECTION_FAILED:
+            log = attachServerSelectionFields(log, logObject, maxDocumentLength);
+            log.failure = logObject.failure?.message;
+            return log;
+        case constants_1.SERVER_SELECTION_SUCCEEDED:
+            log = attachServerSelectionFields(log, logObject, maxDocumentLength);
+            log.serverHost = logObject.serverHost;
+            log.serverPort = logObject.serverPort;
+            return log;
+        case constants_1.WAITING_FOR_SUITABLE_SERVER:
+            log = attachServerSelectionFields(log, logObject, maxDocumentLength);
+            log.remainingTimeMS = logObject.remainingTimeMS;
+            return log;
+        case constants_1.COMMAND_STARTED:
+            log = attachCommandFields(log, logObject);
+            log.message = 'Command started';
+            log.command = stringifyWithMaxLen(logObject.command, maxDocumentLength, { relaxed: true });
+            log.databaseName = logObject.databaseName;
+            return log;
+        case constants_1.COMMAND_SUCCEEDED:
+            log = attachCommandFields(log, logObject);
+            log.message = 'Command succeeded';
+            log.durationMS = logObject.duration;
+            log.reply = stringifyWithMaxLen(logObject.reply, maxDocumentLength, { relaxed: true });
+            return log;
+        case constants_1.COMMAND_FAILED:
+            log = attachCommandFields(log, logObject);
+            log.message = 'Command failed';
+            log.durationMS = logObject.duration;
+            log.failure = logObject.failure?.message ?? '(redacted)';
+            return log;
+        case constants_1.CONNECTION_POOL_CREATED:
+            log = attachConnectionFields(log, logObject);
+            log.message = 'Connection pool created';
+            if (logObject.options) {
+                const { maxIdleTimeMS, minPoolSize, maxPoolSize, maxConnecting, waitQueueTimeoutMS } = logObject.options;
+                log = {
+                    ...log,
+                    maxIdleTimeMS,
+                    minPoolSize,
+                    maxPoolSize,
+                    maxConnecting,
+                    waitQueueTimeoutMS
+                };
+            }
+            return log;
+        case constants_1.CONNECTION_POOL_READY:
+            log = attachConnectionFields(log, logObject);
+            log.message = 'Connection pool ready';
+            return log;
+        case constants_1.CONNECTION_POOL_CLEARED:
+            log = attachConnectionFields(log, logObject);
+            log.message = 'Connection pool cleared';
+            if (logObject.serviceId?._bsontype === 'ObjectId') {
+                log.serviceId = logObject.serviceId?.toHexString();
+            }
+            return log;
+        case constants_1.CONNECTION_POOL_CLOSED:
+            log = attachConnectionFields(log, logObject);
+            log.message = 'Connection pool closed';
+            return log;
+        case constants_1.CONNECTION_CREATED:
+            log = attachConnectionFields(log, logObject);
+            log.message = 'Connection created';
+            log.driverConnectionId = logObject.connectionId;
+            return log;
+        case constants_1.CONNECTION_READY:
+            log = attachConnectionFields(log, logObject);
+            log.message = 'Connection ready';
+            log.driverConnectionId = logObject.connectionId;
+            log.durationMS = logObject.durationMS;
+            return log;
+        case constants_1.CONNECTION_CLOSED:
+            log = attachConnectionFields(log, logObject);
+            log.message = 'Connection closed';
+            log.driverConnectionId = logObject.connectionId;
+            switch (logObject.reason) {
+                case 'stale':
+                    log.reason = 'Connection became stale because the pool was cleared';
+                    break;
+                case 'idle':
+                    log.reason =
+                        'Connection has been available but unused for longer than the configured max idle time';
+                    break;
+                case 'error':
+                    log.reason = 'An error occurred while using the connection';
+                    if (logObject.error) {
+                        log.error = logObject.error;
+                    }
+                    break;
+                case 'poolClosed':
+                    log.reason = 'Connection pool was closed';
+                    break;
+                default:
+                    log.reason = `Unknown close reason: ${logObject.reason}`;
+            }
+            return log;
+        case constants_1.CONNECTION_CHECK_OUT_STARTED:
+            log = attachConnectionFields(log, logObject);
+            log.message = 'Connection checkout started';
+            return log;
+        case constants_1.CONNECTION_CHECK_OUT_FAILED:
+            log = attachConnectionFields(log, logObject);
+            log.message = 'Connection checkout failed';
+            switch (logObject.reason) {
+                case 'poolClosed':
+                    log.reason = 'Connection pool was closed';
+                    break;
+                case 'timeout':
+                    log.reason = 'Wait queue timeout elapsed without a connection becoming available';
+                    break;
+                case 'connectionError':
+                    log.reason = 'An error occurred while trying to establish a new connection';
+                    if (logObject.error) {
+                        log.error = logObject.error;
+                    }
+                    break;
+                default:
+                    log.reason = `Unknown close reason: ${logObject.reason}`;
+            }
+            log.durationMS = logObject.durationMS;
+            return log;
+        case constants_1.CONNECTION_CHECKED_OUT:
+            log = attachConnectionFields(log, logObject);
+            log.message = 'Connection checked out';
+            log.driverConnectionId = logObject.connectionId;
+            log.durationMS = logObject.durationMS;
+            return log;
+        case constants_1.CONNECTION_CHECKED_IN:
+            log = attachConnectionFields(log, logObject);
+            log.message = 'Connection checked in';
+            log.driverConnectionId = logObject.connectionId;
+            return log;
+        case constants_1.SERVER_OPENING:
+            log = attachSDAMFields(log, logObject);
+            log = attachConnectionFields(log, logObject);
+            log.message = 'Starting server monitoring';
+            return log;
+        case constants_1.SERVER_CLOSED:
+            log = attachSDAMFields(log, logObject);
+            log = attachConnectionFields(log, logObject);
+            log.message = 'Stopped server monitoring';
+            return log;
+        case constants_1.SERVER_HEARTBEAT_STARTED:
+            log = attachSDAMFields(log, logObject);
+            log = attachServerHeartbeatFields(log, logObject);
+            log.message = 'Server heartbeat started';
+            return log;
+        case constants_1.SERVER_HEARTBEAT_SUCCEEDED:
+            log = attachSDAMFields(log, logObject);
+            log = attachServerHeartbeatFields(log, logObject);
+            log.message = 'Server heartbeat succeeded';
+            log.durationMS = logObject.duration;
+            log.serverConnectionId = logObject.serverConnectionId;
+            log.reply = stringifyWithMaxLen(logObject.reply, maxDocumentLength, { relaxed: true });
+            return log;
+        case constants_1.SERVER_HEARTBEAT_FAILED:
+            log = attachSDAMFields(log, logObject);
+            log = attachServerHeartbeatFields(log, logObject);
+            log.message = 'Server heartbeat failed';
+            log.durationMS = logObject.duration;
+            log.failure = logObject.failure?.message;
+            return log;
+        case constants_1.TOPOLOGY_OPENING:
+            log = attachSDAMFields(log, logObject);
+            log.message = 'Starting topology monitoring';
+            return log;
+        case constants_1.TOPOLOGY_CLOSED:
+            log = attachSDAMFields(log, logObject);
+            log.message = 'Stopped topology monitoring';
+            return log;
+        case constants_1.TOPOLOGY_DESCRIPTION_CHANGED:
+            log = attachSDAMFields(log, logObject);
+            log.message = 'Topology description changed';
+            log.previousDescription = log.reply = stringifyWithMaxLen(logObject.previousDescription, maxDocumentLength);
+            log.newDescription = log.reply = stringifyWithMaxLen(logObject.newDescription, maxDocumentLength);
+            return log;
+        default:
+            for (const [key, value] of Object.entries(logObject)) {
+                if (value != null)
+                    log[key] = value;
+            }
+    }
+    return log;
+}
+/** @internal */
+class MongoLogger {
+    constructor(options) {
+        this.pendingLog = null;
+        /**
+         * This method should be used when logging errors that do not have a public driver API for
+         * reporting errors.
+         */
+        this.error = this.log.bind(this, 'error');
+        /**
+         * This method should be used to log situations where undesirable application behaviour might
+         * occur. For example, failing to end sessions on `MongoClient.close`.
+         */
+        this.warn = this.log.bind(this, 'warn');
+        /**
+         * This method should be used to report high-level information about normal driver behaviour.
+         * For example, the creation of a `MongoClient`.
+         */
+        this.info = this.log.bind(this, 'info');
+        /**
+         * This method should be used to report information that would be helpful when debugging an
+         * application. For example, a command starting, succeeding or failing.
+         */
+        this.debug = this.log.bind(this, 'debug');
+        /**
+         * This method should be used to report fine-grained details related to logic flow. For example,
+         * entering and exiting a function body.
+         */
+        this.trace = this.log.bind(this, 'trace');
+        this.componentSeverities = options.componentSeverities;
+        this.maxDocumentLength = options.maxDocumentLength;
+        this.logDestination = options.logDestination;
+        this.logDestinationIsStdErr = options.logDestinationIsStdErr;
+        this.severities = this.createLoggingSeverities();
+    }
+    createLoggingSeverities() {
+        const severities = Object();
+        for (const component of Object.values(exports.MongoLoggableComponent)) {
+            severities[component] = {};
+            for (const severityLevel of Object.values(exports.SeverityLevel)) {
+                severities[component][severityLevel] =
+                    compareSeverity(severityLevel, this.componentSeverities[component]) <= 0;
+            }
+        }
+        return severities;
+    }
+    turnOffSeverities() {
+        for (const component of Object.values(exports.MongoLoggableComponent)) {
+            this.componentSeverities[component] = exports.SeverityLevel.OFF;
+            for (const severityLevel of Object.values(exports.SeverityLevel)) {
+                this.severities[component][severityLevel] = false;
+            }
+        }
+    }
+    logWriteFailureHandler(error) {
+        if (this.logDestinationIsStdErr) {
+            this.turnOffSeverities();
+            this.clearPendingLog();
+            return;
+        }
+        this.logDestination = createStdioLogger(process.stderr);
+        this.logDestinationIsStdErr = true;
+        this.clearPendingLog();
+        this.error(exports.MongoLoggableComponent.CLIENT, {
+            toLog: function () {
+                return {
+                    message: 'User input for mongodbLogPath is now invalid. Logging is halted.',
+                    error: error.message
+                };
+            }
+        });
+        this.turnOffSeverities();
+        this.clearPendingLog();
+    }
+    clearPendingLog() {
+        this.pendingLog = null;
+    }
+    willLog(component, severity) {
+        if (severity === exports.SeverityLevel.OFF)
+            return false;
+        return this.severities[component][severity];
+    }
+    log(severity, component, message) {
+        if (!this.willLog(component, severity))
+            return;
+        let logMessage = { t: new Date(), c: component, s: severity };
+        if (typeof message === 'string') {
+            logMessage.message = message;
+        }
+        else if (typeof message === 'object') {
+            if (isLogConvertible(message)) {
+                logMessage = { ...logMessage, ...message.toLog() };
+            }
+            else {
+                logMessage = { ...logMessage, ...defaultLogTransform(message, this.maxDocumentLength) };
+            }
+        }
+        if ((0, utils_1.isPromiseLike)(this.pendingLog)) {
+            this.pendingLog = this.pendingLog
+                .then(() => this.logDestination.write(logMessage))
+                .then(this.clearPendingLog.bind(this), this.logWriteFailureHandler.bind(this));
+            return;
+        }
+        try {
+            const logResult = this.logDestination.write(logMessage);
+            if ((0, utils_1.isPromiseLike)(logResult)) {
+                this.pendingLog = logResult.then(this.clearPendingLog.bind(this), this.logWriteFailureHandler.bind(this));
+            }
+        }
+        catch (error) {
+            this.logWriteFailureHandler(error);
+        }
+    }
+    /**
+     * Merges options set through environment variables and the MongoClient, preferring environment
+     * variables when both are set, and substituting defaults for values not set. Options set in
+     * constructor take precedence over both environment variables and MongoClient options.
+     *
+     * @remarks
+     * When parsing component severity levels, invalid values are treated as unset and replaced with
+     * the default severity.
+     *
+     * @param envOptions - options set for the logger from the environment
+     * @param clientOptions - options set for the logger in the MongoClient options
+     * @returns a MongoLoggerOptions object to be used when instantiating a new MongoLogger
+     */
+    static resolveOptions(envOptions, clientOptions) {
+        // client options take precedence over env options
+        const resolvedLogPath = resolveLogPath(envOptions, clientOptions);
+        const combinedOptions = {
+            ...envOptions,
+            ...clientOptions,
+            mongodbLogPath: resolvedLogPath.mongodbLogPath,
+            mongodbLogPathIsStdErr: resolvedLogPath.mongodbLogPathIsStdErr
+        };
+        const defaultSeverity = resolveSeverityConfiguration(combinedOptions.mongodbLogComponentSeverities?.default, combinedOptions.MONGODB_LOG_ALL, exports.SeverityLevel.OFF);
+        return {
+            componentSeverities: {
+                command: resolveSeverityConfiguration(combinedOptions.mongodbLogComponentSeverities?.command, combinedOptions.MONGODB_LOG_COMMAND, defaultSeverity),
+                topology: resolveSeverityConfiguration(combinedOptions.mongodbLogComponentSeverities?.topology, combinedOptions.MONGODB_LOG_TOPOLOGY, defaultSeverity),
+                serverSelection: resolveSeverityConfiguration(combinedOptions.mongodbLogComponentSeverities?.serverSelection, combinedOptions.MONGODB_LOG_SERVER_SELECTION, defaultSeverity),
+                connection: resolveSeverityConfiguration(combinedOptions.mongodbLogComponentSeverities?.connection, combinedOptions.MONGODB_LOG_CONNECTION, defaultSeverity),
+                client: resolveSeverityConfiguration(combinedOptions.mongodbLogComponentSeverities?.client, combinedOptions.MONGODB_LOG_CLIENT, defaultSeverity),
+                default: defaultSeverity
+            },
+            maxDocumentLength: combinedOptions.mongodbLogMaxDocumentLength ??
+                (0, utils_1.parseUnsignedInteger)(combinedOptions.MONGODB_LOG_MAX_DOCUMENT_LENGTH) ??
+                1000,
+            logDestination: combinedOptions.mongodbLogPath,
+            logDestinationIsStdErr: combinedOptions.mongodbLogPathIsStdErr
+        };
+    }
+}
+exports.MongoLogger = MongoLogger;
+//# sourceMappingURL=mongo_logger.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/mongo_logger.js.map b/backend/node_modules/mongodb/lib/mongo_logger.js.map
new file mode 100644
index 0000000..11f64bd
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/mongo_logger.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/mongo_types.js b/backend/node_modules/mongodb/lib/mongo_types.js
new file mode 100644
index 0000000..76ecbe1
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/mongo_types.js
@@ -0,0 +1,49 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.CancellationToken = exports.TypedEventEmitter = void 0;
+const events_1 = require("events");
+const mongo_logger_1 = require("./mongo_logger");
+/**
+ * Typescript type safe event emitter
+ * @public
+ */
+// eslint-disable-next-line @typescript-eslint/no-unsafe-declaration-merging
+class TypedEventEmitter extends events_1.EventEmitter {
+    /** @internal */
+    emitAndLog(event, ...args) {
+        this.emit(event, ...args);
+        if (this.component)
+            this.mongoLogger?.debug(this.component, args[0]);
+    }
+    /** @internal */
+    emitAndLogHeartbeat(event, topologyId, serverConnectionId, ...args) {
+        this.emit(event, ...args);
+        if (this.component) {
+            const loggableHeartbeatEvent = {
+                topologyId: topologyId,
+                serverConnectionId: serverConnectionId ?? null,
+                ...args[0]
+            };
+            this.mongoLogger?.debug(this.component, loggableHeartbeatEvent);
+        }
+    }
+    /** @internal */
+    emitAndLogCommand(monitorCommands, event, databaseName, connectionEstablished, ...args) {
+        if (monitorCommands) {
+            this.emit(event, ...args);
+        }
+        if (connectionEstablished) {
+            const loggableCommandEvent = {
+                databaseName: databaseName,
+                ...args[0]
+            };
+            this.mongoLogger?.debug(mongo_logger_1.MongoLoggableComponent.COMMAND, loggableCommandEvent);
+        }
+    }
+}
+exports.TypedEventEmitter = TypedEventEmitter;
+/** @public */
+class CancellationToken extends TypedEventEmitter {
+}
+exports.CancellationToken = CancellationToken;
+//# sourceMappingURL=mongo_types.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/mongo_types.js.map b/backend/node_modules/mongodb/lib/mongo_types.js.map
new file mode 100644
index 0000000..d1ac6b3
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/mongo_types.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"mongo_types.js","sourceRoot":"","sources":["../src/mongo_types.ts"],"names":[],"mappings":";;;AAAA,mCAAsC;AAgBtC,iDAQwB;AAkYxB;;;GAGG;AAEH,4EAA4E;AAC5E,MAAa,iBAAoD,SAAQ,qBAAY;IAKnF,gBAAgB;IAChB,UAAU,CACR,KAAwB,EACxB,GAAG,IAAkC;QAErC,IAAI,CAAC,IAAI,CAAC,KAAK,EAAE,GAAG,IAAI,CAAC,CAAC;QAC1B,IAAI,IAAI,CAAC,SAAS;YAAE,IAAI,CAAC,WAAW,EAAE,KAAK,CAAC,IAAI,CAAC,SAAS,EAAE,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC;IACvE,CAAC;IACD,gBAAgB;IAChB,mBAAmB,CACjB,KAAwB,EACxB,UAAkB,EAClB,kBAAyC,EACzC,GAAG,IAAkC;QAErC,IAAI,CAAC,IAAI,CAAC,KAAK,EAAE,GAAG,IAAI,CAAC,CAAC;QAC1B,IAAI,IAAI,CAAC,SAAS,EAAE,CAAC;YACnB,MAAM,sBAAsB,GAGc;gBACxC,UAAU,EAAE,UAAU;gBACtB,kBAAkB,EAAE,kBAAkB,IAAI,IAAI;gBAC9C,GAAG,IAAI,CAAC,CAAC,CAAC;aACX,CAAC;YACF,IAAI,CAAC,WAAW,EAAE,KAAK,CAAC,IAAI,CAAC,SAAS,EAAE,sBAAsB,CAAC,CAAC;QAClE,CAAC;IACH,CAAC;IACD,gBAAgB;IAChB,iBAAiB,CACf,eAAwB,EACxB,KAAwB,EACxB,YAAoB,EACpB,qBAA8B,EAC9B,GAAG,IAAkC;QAErC,IAAI,eAAe,EAAE,CAAC;YACpB,IAAI,CAAC,IAAI,CAAC,KAAK,EAAE,GAAG,IAAI,CAAC,CAAC;QAC5B,CAAC;QACD,IAAI,qBAAqB,EAAE,CAAC;YAC1B,MAAM,oBAAoB,GAGU;gBAClC,YAAY,EAAE,YAAY;gBAC1B,GAAG,IAAI,CAAC,CAAC,CAAC;aACX,CAAC;YACF,IAAI,CAAC,WAAW,EAAE,KAAK,CAAC,qCAAsB,CAAC,OAAO,EAAE,oBAAoB,CAAC,CAAC;QAChF,CAAC;IACH,CAAC;CACF;AAvDD,8CAuDC;AAED,cAAc;AACd,MAAa,iBAAkB,SAAQ,iBAAqC;CAAG;AAA/E,8CAA+E"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/aggregate.js b/backend/node_modules/mongodb/lib/operations/aggregate.js
new file mode 100644
index 0000000..fc30c6b
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/aggregate.js
@@ -0,0 +1,97 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.AggregateOperation = exports.DB_AGGREGATE_COLLECTION = void 0;
+const responses_1 = require("../cmap/wire_protocol/responses");
+const error_1 = require("../error");
+const utils_1 = require("../utils");
+const write_concern_1 = require("../write_concern");
+const command_1 = require("./command");
+const operation_1 = require("./operation");
+/** @internal */
+// eslint-disable-next-line @typescript-eslint/no-unnecessary-type-assertion
+exports.DB_AGGREGATE_COLLECTION = 1;
+const MIN_WIRE_VERSION_$OUT_READ_CONCERN_SUPPORT = 8;
+/** @internal */
+class AggregateOperation extends command_1.CommandOperation {
+    constructor(ns, pipeline, options) {
+        super(undefined, { ...options, dbName: ns.db });
+        this.options = { ...options };
+        // Covers when ns.collection is null, undefined or the empty string, use DB_AGGREGATE_COLLECTION
+        this.target = ns.collection || exports.DB_AGGREGATE_COLLECTION;
+        this.pipeline = pipeline;
+        // determine if we have a write stage, override read preference if so
+        this.hasWriteStage = false;
+        if (typeof options?.out === 'string') {
+            this.pipeline = this.pipeline.concat({ $out: options.out });
+            this.hasWriteStage = true;
+        }
+        else if (pipeline.length > 0) {
+            const finalStage = pipeline[pipeline.length - 1];
+            if (finalStage.$out || finalStage.$merge) {
+                this.hasWriteStage = true;
+            }
+        }
+        if (this.hasWriteStage) {
+            this.trySecondaryWrite = true;
+        }
+        else {
+            delete this.options.writeConcern;
+        }
+        if (this.explain && this.writeConcern) {
+            throw new error_1.MongoInvalidArgumentError('Option "explain" cannot be used on an aggregate call with writeConcern');
+        }
+        if (options?.cursor != null && typeof options.cursor !== 'object') {
+            throw new error_1.MongoInvalidArgumentError('Cursor options must be an object');
+        }
+    }
+    get commandName() {
+        return 'aggregate';
+    }
+    get canRetryRead() {
+        return !this.hasWriteStage;
+    }
+    addToPipeline(stage) {
+        this.pipeline.push(stage);
+    }
+    async execute(server, session, timeoutContext) {
+        const options = this.options;
+        const serverWireVersion = (0, utils_1.maxWireVersion)(server);
+        const command = { aggregate: this.target, pipeline: this.pipeline };
+        if (this.hasWriteStage && serverWireVersion < MIN_WIRE_VERSION_$OUT_READ_CONCERN_SUPPORT) {
+            this.readConcern = undefined;
+        }
+        if (this.hasWriteStage && this.writeConcern) {
+            write_concern_1.WriteConcern.apply(command, this.writeConcern);
+        }
+        if (options.bypassDocumentValidation === true) {
+            command.bypassDocumentValidation = options.bypassDocumentValidation;
+        }
+        if (typeof options.allowDiskUse === 'boolean') {
+            command.allowDiskUse = options.allowDiskUse;
+        }
+        if (options.hint) {
+            command.hint = options.hint;
+        }
+        if (options.let) {
+            command.let = options.let;
+        }
+        // we check for undefined specifically here to allow falsy values
+        // eslint-disable-next-line no-restricted-syntax
+        if (options.comment !== undefined) {
+            command.comment = options.comment;
+        }
+        command.cursor = options.cursor || {};
+        if (options.batchSize && !this.hasWriteStage) {
+            command.cursor.batchSize = options.batchSize;
+        }
+        return await super.executeCommand(server, session, command, timeoutContext, this.explain ? responses_1.ExplainedCursorResponse : responses_1.CursorResponse);
+    }
+}
+exports.AggregateOperation = AggregateOperation;
+(0, operation_1.defineAspects)(AggregateOperation, [
+    operation_1.Aspect.READ_OPERATION,
+    operation_1.Aspect.RETRYABLE,
+    operation_1.Aspect.EXPLAINABLE,
+    operation_1.Aspect.CURSOR_CREATING
+]);
+//# sourceMappingURL=aggregate.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/aggregate.js.map b/backend/node_modules/mongodb/lib/operations/aggregate.js.map
new file mode 100644
index 0000000..b10c1db
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/aggregate.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"aggregate.js","sourceRoot":"","sources":["../../src/operations/aggregate.ts"],"names":[],"mappings":";;;AACA,+DAA0F;AAE1F,oCAAqD;AAKrD,oCAAiE;AACjE,oDAAgD;AAChD,uCAAkG;AAClG,2CAA+D;AAE/D,gBAAgB;AAChB,4EAA4E;AAC/D,QAAA,uBAAuB,GAAG,CAAU,CAAC;AAClD,MAAM,0CAA0C,GAAG,CAAC,CAAC;AAqCrD,gBAAgB;AAChB,MAAa,kBAAmB,SAAQ,0BAAgC;IAMtE,YAAY,EAAoB,EAAE,QAAoB,EAAE,OAA0B;QAChF,KAAK,CAAC,SAAS,EAAE,EAAE,GAAG,OAAO,EAAE,MAAM,EAAE,EAAE,CAAC,EAAE,EAAE,CAAC,CAAC;QAEhD,IAAI,CAAC,OAAO,GAAG,EAAE,GAAG,OAAO,EAAE,CAAC;QAE9B,gGAAgG;QAChG,IAAI,CAAC,MAAM,GAAG,EAAE,CAAC,UAAU,IAAI,+BAAuB,CAAC;QAEvD,IAAI,CAAC,QAAQ,GAAG,QAAQ,CAAC;QAEzB,qEAAqE;QACrE,IAAI,CAAC,aAAa,GAAG,KAAK,CAAC;QAC3B,IAAI,OAAO,OAAO,EAAE,GAAG,KAAK,QAAQ,EAAE,CAAC;YACrC,IAAI,CAAC,QAAQ,GAAG,IAAI,CAAC,QAAQ,CAAC,MAAM,CAAC,EAAE,IAAI,EAAE,OAAO,CAAC,GAAG,EAAE,CAAC,CAAC;YAC5D,IAAI,CAAC,aAAa,GAAG,IAAI,CAAC;QAC5B,CAAC;aAAM,IAAI,QAAQ,CAAC,MAAM,GAAG,CAAC,EAAE,CAAC;YAC/B,MAAM,UAAU,GAAG,QAAQ,CAAC,QAAQ,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC;YACjD,IAAI,UAAU,CAAC,IAAI,IAAI,UAAU,CAAC,MAAM,EAAE,CAAC;gBACzC,IAAI,CAAC,aAAa,GAAG,IAAI,CAAC;YAC5B,CAAC;QACH,CAAC;QAED,IAAI,IAAI,CAAC,aAAa,EAAE,CAAC;YACvB,IAAI,CAAC,iBAAiB,GAAG,IAAI,CAAC;QAChC,CAAC;aAAM,CAAC;YACN,OAAO,IAAI,CAAC,OAAO,CAAC,YAAY,CAAC;QACnC,CAAC;QAED,IAAI,IAAI,CAAC,OAAO,IAAI,IAAI,CAAC,YAAY,EAAE,CAAC;YACtC,MAAM,IAAI,iCAAyB,CACjC,wEAAwE,CACzE,CAAC;QACJ,CAAC;QAED,IAAI,OAAO,EAAE,MAAM,IAAI,IAAI,IAAI,OAAO,OAAO,CAAC,MAAM,KAAK,QAAQ,EAAE,CAAC;YAClE,MAAM,IAAI,iCAAyB,CAAC,kCAAkC,CAAC,CAAC;QAC1E,CAAC;IACH,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,WAAoB,CAAC;IAC9B,CAAC;IAED,IAAa,YAAY;QACvB,OAAO,CAAC,IAAI,CAAC,aAAa,CAAC;IAC7B,CAAC;IAED,aAAa,CAAC,KAAe;QAC3B,IAAI,CAAC,QAAQ,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC;IAC5B,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,OAAO,GAAqB,IAAI,CAAC,OAAO,CAAC;QAC/C,MAAM,iBAAiB,GAAG,IAAA,sBAAc,EAAC,MAAM,CAAC,CAAC;QACjD,MAAM,OAAO,GAAa,EAAE,SAAS,EAAE,IAAI,CAAC,MAAM,EAAE,QAAQ,EAAE,IAAI,CAAC,QAAQ,EAAE,CAAC;QAE9E,IAAI,IAAI,CAAC,aAAa,IAAI,iBAAiB,GAAG,0CAA0C,EAAE,CAAC;YACzF,IAAI,CAAC,WAAW,GAAG,SAAS,CAAC;QAC/B,CAAC;QAED,IAAI,IAAI,CAAC,aAAa,IAAI,IAAI,CAAC,YAAY,EAAE,CAAC;YAC5C,4BAAY,CAAC,KAAK,CAAC,OAAO,EAAE,IAAI,CAAC,YAAY,CAAC,CAAC;QACjD,CAAC;QAED,IAAI,OAAO,CAAC,wBAAwB,KAAK,IAAI,EAAE,CAAC;YAC9C,OAAO,CAAC,wBAAwB,GAAG,OAAO,CAAC,wBAAwB,CAAC;QACtE,CAAC;QAED,IAAI,OAAO,OAAO,CAAC,YAAY,KAAK,SAAS,EAAE,CAAC;YAC9C,OAAO,CAAC,YAAY,GAAG,OAAO,CAAC,YAAY,CAAC;QAC9C,CAAC;QAED,IAAI,OAAO,CAAC,IAAI,EAAE,CAAC;YACjB,OAAO,CAAC,IAAI,GAAG,OAAO,CAAC,IAAI,CAAC;QAC9B,CAAC;QAED,IAAI,OAAO,CAAC,GAAG,EAAE,CAAC;YAChB,OAAO,CAAC,GAAG,GAAG,OAAO,CAAC,GAAG,CAAC;QAC5B,CAAC;QAED,iEAAiE;QACjE,gDAAgD;QAChD,IAAI,OAAO,CAAC,OAAO,KAAK,SAAS,EAAE,CAAC;YAClC,OAAO,CAAC,OAAO,GAAG,OAAO,CAAC,OAAO,CAAC;QACpC,CAAC;QAED,OAAO,CAAC,MAAM,GAAG,OAAO,CAAC,MAAM,IAAI,EAAE,CAAC;QACtC,IAAI,OAAO,CAAC,SAAS,IAAI,CAAC,IAAI,CAAC,aAAa,EAAE,CAAC;YAC7C,OAAO,CAAC,MAAM,CAAC,SAAS,GAAG,OAAO,CAAC,SAAS,CAAC;QAC/C,CAAC;QAED,OAAO,MAAM,KAAK,CAAC,cAAc,CAC/B,MAAM,EACN,OAAO,EACP,OAAO,EACP,cAAc,EACd,IAAI,CAAC,OAAO,CAAC,CAAC,CAAC,mCAAuB,CAAC,CAAC,CAAC,0BAAc,CACxD,CAAC;IACJ,CAAC;CACF;AA7GD,gDA6GC;AAED,IAAA,yBAAa,EAAC,kBAAkB,EAAE;IAChC,kBAAM,CAAC,cAAc;IACrB,kBAAM,CAAC,SAAS;IAChB,kBAAM,CAAC,WAAW;IAClB,kBAAM,CAAC,eAAe;CACvB,CAAC,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/bulk_write.js b/backend/node_modules/mongodb/lib/operations/bulk_write.js
new file mode 100644
index 0000000..bd625b8
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/bulk_write.js
@@ -0,0 +1,39 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.BulkWriteOperation = void 0;
+const operation_1 = require("./operation");
+/** @internal */
+class BulkWriteOperation extends operation_1.AbstractOperation {
+    constructor(collection, operations, options) {
+        super(options);
+        this.options = options;
+        this.collection = collection;
+        this.operations = operations;
+    }
+    get commandName() {
+        return 'bulkWrite';
+    }
+    async execute(server, session, timeoutContext) {
+        const coll = this.collection;
+        const operations = this.operations;
+        const options = {
+            ...this.options,
+            ...this.bsonOptions,
+            readPreference: this.readPreference,
+            timeoutContext
+        };
+        // Create the bulk operation
+        const bulk = options.ordered === false
+            ? coll.initializeUnorderedBulkOp(options)
+            : coll.initializeOrderedBulkOp(options);
+        // for each op go through and add to the bulk
+        for (let i = 0; i < operations.length; i++) {
+            bulk.raw(operations[i]);
+        }
+        // Execute the bulk
+        return await bulk.execute({ ...options, session });
+    }
+}
+exports.BulkWriteOperation = BulkWriteOperation;
+(0, operation_1.defineAspects)(BulkWriteOperation, [operation_1.Aspect.WRITE_OPERATION]);
+//# sourceMappingURL=bulk_write.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/bulk_write.js.map b/backend/node_modules/mongodb/lib/operations/bulk_write.js.map
new file mode 100644
index 0000000..120a0a9
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/bulk_write.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"bulk_write.js","sourceRoot":"","sources":["../../src/operations/bulk_write.ts"],"names":[],"mappings":";;;AAUA,2CAAuE;AAEvE,gBAAgB;AAChB,MAAa,kBAAmB,SAAQ,6BAAkC;IAKxE,YACE,UAAsB,EACtB,UAAgD,EAChD,OAAyB;QAEzB,KAAK,CAAC,OAAO,CAAC,CAAC;QACf,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACvB,IAAI,CAAC,UAAU,GAAG,UAAU,CAAC;QAC7B,IAAI,CAAC,UAAU,GAAG,UAAU,CAAC;IAC/B,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,WAAoB,CAAC;IAC9B,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,IAAI,GAAG,IAAI,CAAC,UAAU,CAAC;QAC7B,MAAM,UAAU,GAAG,IAAI,CAAC,UAAU,CAAC;QACnC,MAAM,OAAO,GAAG;YACd,GAAG,IAAI,CAAC,OAAO;YACf,GAAG,IAAI,CAAC,WAAW;YACnB,cAAc,EAAE,IAAI,CAAC,cAAc;YACnC,cAAc;SACf,CAAC;QAEF,4BAA4B;QAC5B,MAAM,IAAI,GACR,OAAO,CAAC,OAAO,KAAK,KAAK;YACvB,CAAC,CAAC,IAAI,CAAC,yBAAyB,CAAC,OAAO,CAAC;YACzC,CAAC,CAAC,IAAI,CAAC,uBAAuB,CAAC,OAAO,CAAC,CAAC;QAE5C,6CAA6C;QAC7C,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,UAAU,CAAC,MAAM,EAAE,CAAC,EAAE,EAAE,CAAC;YAC3C,IAAI,CAAC,GAAG,CAAC,UAAU,CAAC,CAAC,CAAC,CAAC,CAAC;QAC1B,CAAC;QAED,mBAAmB;QACnB,OAAO,MAAM,IAAI,CAAC,OAAO,CAAC,EAAE,GAAG,OAAO,EAAE,OAAO,EAAE,CAAC,CAAC;IACrD,CAAC;CACF;AAhDD,gDAgDC;AAED,IAAA,yBAAa,EAAC,kBAAkB,EAAE,CAAC,kBAAM,CAAC,eAAe,CAAC,CAAC,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/client_bulk_write/client_bulk_write.js b/backend/node_modules/mongodb/lib/operations/client_bulk_write/client_bulk_write.js
new file mode 100644
index 0000000..d1dc323
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/client_bulk_write/client_bulk_write.js
@@ -0,0 +1,83 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ClientBulkWriteOperation = void 0;
+const beta_1 = require("../../beta");
+const responses_1 = require("../../cmap/wire_protocol/responses");
+const utils_1 = require("../../utils");
+const command_1 = require("../command");
+const operation_1 = require("../operation");
+/**
+ * Executes a single client bulk write operation within a potential batch.
+ * @internal
+ */
+class ClientBulkWriteOperation extends command_1.CommandOperation {
+    get commandName() {
+        return 'bulkWrite';
+    }
+    constructor(commandBuilder, options) {
+        super(undefined, options);
+        this.commandBuilder = commandBuilder;
+        this.options = options;
+        this.ns = new utils_1.MongoDBNamespace('admin', '$cmd');
+    }
+    resetBatch() {
+        return this.commandBuilder.resetBatch();
+    }
+    get canRetryWrite() {
+        return this.commandBuilder.isBatchRetryable;
+    }
+    /**
+     * Execute the command. Superclass will handle write concern, etc.
+     * @param server - The server.
+     * @param session - The session.
+     * @returns The response.
+     */
+    async execute(server, session, timeoutContext) {
+        let command;
+        if (server.description.type === beta_1.ServerType.LoadBalancer) {
+            if (session) {
+                let connection;
+                if (!session.pinnedConnection) {
+                    // Checkout a connection to build the command.
+                    connection = await server.pool.checkOut({ timeoutContext });
+                    // Pin the connection to the session so it get used to execute the command and we do not
+                    // perform a double check-in/check-out.
+                    session.pin(connection);
+                }
+                else {
+                    connection = session.pinnedConnection;
+                }
+                command = this.commandBuilder.buildBatch(connection.hello?.maxMessageSizeBytes, connection.hello?.maxWriteBatchSize, connection.hello?.maxBsonObjectSize);
+            }
+            else {
+                throw new beta_1.MongoClientBulkWriteExecutionError('Session provided to the client bulk write operation must be present.');
+            }
+        }
+        else {
+            // At this point we have a server and the auto connect code has already
+            // run in executeOperation, so the server description will be populated.
+            // We can use that to build the command.
+            if (!server.description.maxWriteBatchSize ||
+                !server.description.maxMessageSizeBytes ||
+                !server.description.maxBsonObjectSize) {
+                throw new beta_1.MongoClientBulkWriteExecutionError('In order to execute a client bulk write, both maxWriteBatchSize, maxMessageSizeBytes and maxBsonObjectSize must be provided by the servers hello response.');
+            }
+            command = this.commandBuilder.buildBatch(server.description.maxMessageSizeBytes, server.description.maxWriteBatchSize, server.description.maxBsonObjectSize);
+        }
+        // Check after the batch is built if we cannot retry it and override the option.
+        if (!this.canRetryWrite) {
+            this.options.willRetryWrite = false;
+        }
+        return await super.executeCommand(server, session, command, timeoutContext, responses_1.ClientBulkWriteCursorResponse);
+    }
+}
+exports.ClientBulkWriteOperation = ClientBulkWriteOperation;
+// Skipping the collation as it goes on the individual ops.
+(0, operation_1.defineAspects)(ClientBulkWriteOperation, [
+    operation_1.Aspect.WRITE_OPERATION,
+    operation_1.Aspect.SKIP_COLLATION,
+    operation_1.Aspect.CURSOR_CREATING,
+    operation_1.Aspect.RETRYABLE,
+    operation_1.Aspect.COMMAND_BATCHING
+]);
+//# sourceMappingURL=client_bulk_write.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/client_bulk_write/client_bulk_write.js.map b/backend/node_modules/mongodb/lib/operations/client_bulk_write/client_bulk_write.js.map
new file mode 100644
index 0000000..2d88b3f
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/client_bulk_write/client_bulk_write.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"client_bulk_write.js","sourceRoot":"","sources":["../../../src/operations/client_bulk_write/client_bulk_write.ts"],"names":[],"mappings":";;;AAAA,qCAA4E;AAC5E,kEAAmF;AAInF,uCAA+C;AAC/C,wCAA8C;AAC9C,4CAAqD;AAIrD;;;GAGG;AACH,MAAa,wBAAyB,SAAQ,0BAA+C;IAI3F,IAAa,WAAW;QACtB,OAAO,WAAoB,CAAC;IAC9B,CAAC;IAED,YAAY,cAA6C,EAAE,OAA+B;QACxF,KAAK,CAAC,SAAS,EAAE,OAAO,CAAC,CAAC;QAC1B,IAAI,CAAC,cAAc,GAAG,cAAc,CAAC;QACrC,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACvB,IAAI,CAAC,EAAE,GAAG,IAAI,wBAAgB,CAAC,OAAO,EAAE,MAAM,CAAC,CAAC;IAClD,CAAC;IAEQ,UAAU;QACjB,OAAO,IAAI,CAAC,cAAc,CAAC,UAAU,EAAE,CAAC;IAC1C,CAAC;IAED,IAAa,aAAa;QACxB,OAAO,IAAI,CAAC,cAAc,CAAC,gBAAgB,CAAC;IAC9C,CAAC;IAED;;;;;OAKG;IACM,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,IAAI,OAAO,CAAC;QAEZ,IAAI,MAAM,CAAC,WAAW,CAAC,IAAI,KAAK,iBAAU,CAAC,YAAY,EAAE,CAAC;YACxD,IAAI,OAAO,EAAE,CAAC;gBACZ,IAAI,UAAU,CAAC;gBACf,IAAI,CAAC,OAAO,CAAC,gBAAgB,EAAE,CAAC;oBAC9B,8CAA8C;oBAC9C,UAAU,GAAG,MAAM,MAAM,CAAC,IAAI,CAAC,QAAQ,CAAC,EAAE,cAAc,EAAE,CAAC,CAAC;oBAC5D,wFAAwF;oBACxF,uCAAuC;oBACvC,OAAO,CAAC,GAAG,CAAC,UAAU,CAAC,CAAC;gBAC1B,CAAC;qBAAM,CAAC;oBACN,UAAU,GAAG,OAAO,CAAC,gBAAgB,CAAC;gBACxC,CAAC;gBACD,OAAO,GAAG,IAAI,CAAC,cAAc,CAAC,UAAU,CACtC,UAAU,CAAC,KAAK,EAAE,mBAAmB,EACrC,UAAU,CAAC,KAAK,EAAE,iBAAiB,EACnC,UAAU,CAAC,KAAK,EAAE,iBAAiB,CACpC,CAAC;YACJ,CAAC;iBAAM,CAAC;gBACN,MAAM,IAAI,yCAAkC,CAC1C,sEAAsE,CACvE,CAAC;YACJ,CAAC;QACH,CAAC;aAAM,CAAC;YACN,uEAAuE;YACvE,wEAAwE;YACxE,wCAAwC;YACxC,IACE,CAAC,MAAM,CAAC,WAAW,CAAC,iBAAiB;gBACrC,CAAC,MAAM,CAAC,WAAW,CAAC,mBAAmB;gBACvC,CAAC,MAAM,CAAC,WAAW,CAAC,iBAAiB,EACrC,CAAC;gBACD,MAAM,IAAI,yCAAkC,CAC1C,4JAA4J,CAC7J,CAAC;YACJ,CAAC;YACD,OAAO,GAAG,IAAI,CAAC,cAAc,CAAC,UAAU,CACtC,MAAM,CAAC,WAAW,CAAC,mBAAmB,EACtC,MAAM,CAAC,WAAW,CAAC,iBAAiB,EACpC,MAAM,CAAC,WAAW,CAAC,iBAAiB,CACrC,CAAC;QACJ,CAAC;QAED,gFAAgF;QAChF,IAAI,CAAC,IAAI,CAAC,aAAa,EAAE,CAAC;YACxB,IAAI,CAAC,OAAO,CAAC,cAAc,GAAG,KAAK,CAAC;QACtC,CAAC;QACD,OAAO,MAAM,KAAK,CAAC,cAAc,CAC/B,MAAM,EACN,OAAO,EACP,OAAO,EACP,cAAc,EACd,yCAA6B,CAC9B,CAAC;IACJ,CAAC;CACF;AA1FD,4DA0FC;AAED,2DAA2D;AAC3D,IAAA,yBAAa,EAAC,wBAAwB,EAAE;IACtC,kBAAM,CAAC,eAAe;IACtB,kBAAM,CAAC,cAAc;IACrB,kBAAM,CAAC,eAAe;IACtB,kBAAM,CAAC,SAAS;IAChB,kBAAM,CAAC,gBAAgB;CACxB,CAAC,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/client_bulk_write/command_builder.js b/backend/node_modules/mongodb/lib/operations/client_bulk_write/command_builder.js
new file mode 100644
index 0000000..1db7a53
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/client_bulk_write/command_builder.js
@@ -0,0 +1,333 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.buildReplaceOneOperation = exports.buildUpdateManyOperation = exports.buildUpdateOneOperation = exports.buildDeleteManyOperation = exports.buildDeleteOneOperation = exports.buildInsertOneOperation = exports.ClientBulkWriteCommandBuilder = void 0;
+exports.buildOperation = buildOperation;
+const bson_1 = require("../../bson");
+const commands_1 = require("../../cmap/commands");
+const error_1 = require("../../error");
+const utils_1 = require("../../utils");
+/**
+ * The bytes overhead for the extra fields added post command generation.
+ */
+const MESSAGE_OVERHEAD_BYTES = 1000;
+/** @internal */
+class ClientBulkWriteCommandBuilder {
+    /**
+     * Create the command builder.
+     * @param models - The client write models.
+     */
+    constructor(models, options, pkFactory) {
+        this.models = models;
+        this.options = options;
+        this.pkFactory = pkFactory ?? utils_1.DEFAULT_PK_FACTORY;
+        this.currentModelIndex = 0;
+        this.previousModelIndex = 0;
+        this.lastOperations = [];
+        this.isBatchRetryable = true;
+    }
+    /**
+     * Gets the errorsOnly value for the command, which is the inverse of the
+     * user provided verboseResults option. Defaults to true.
+     */
+    get errorsOnly() {
+        if ('verboseResults' in this.options) {
+            return !this.options.verboseResults;
+        }
+        return true;
+    }
+    /**
+     * Determines if there is another batch to process.
+     * @returns True if not all batches have been built.
+     */
+    hasNextBatch() {
+        return this.currentModelIndex < this.models.length;
+    }
+    /**
+     * When we need to retry a command we need to set the current
+     * model index back to its previous value.
+     */
+    resetBatch() {
+        this.currentModelIndex = this.previousModelIndex;
+        return true;
+    }
+    /**
+     * Build a single batch of a client bulk write command.
+     * @param maxMessageSizeBytes - The max message size in bytes.
+     * @param maxWriteBatchSize - The max write batch size.
+     * @returns The client bulk write command.
+     */
+    buildBatch(maxMessageSizeBytes, maxWriteBatchSize, maxBsonObjectSize) {
+        // We start by assuming the batch has no multi-updates, so it is retryable
+        // until we find them.
+        this.isBatchRetryable = true;
+        let commandLength = 0;
+        let currentNamespaceIndex = 0;
+        const command = this.baseCommand();
+        const namespaces = new Map();
+        // In the case of retries we need to mark where we started this batch.
+        this.previousModelIndex = this.currentModelIndex;
+        while (this.currentModelIndex < this.models.length) {
+            const model = this.models[this.currentModelIndex];
+            const ns = model.namespace;
+            const nsIndex = namespaces.get(ns);
+            // Multi updates are not retryable.
+            if (model.name === 'deleteMany' || model.name === 'updateMany') {
+                this.isBatchRetryable = false;
+            }
+            if (nsIndex != null) {
+                // Build the operation and serialize it to get the bytes buffer.
+                const operation = buildOperation(model, nsIndex, this.pkFactory);
+                let operationBuffer;
+                try {
+                    operationBuffer = bson_1.BSON.serialize(operation);
+                }
+                catch (cause) {
+                    throw new error_1.MongoInvalidArgumentError(`Could not serialize operation to BSON`, { cause });
+                }
+                validateBufferSize('ops', operationBuffer, maxBsonObjectSize);
+                // Check if the operation buffer can fit in the command. If it can,
+                // then add the operation to the document sequence and increment the
+                // current length as long as the ops don't exceed the maxWriteBatchSize.
+                if (commandLength + operationBuffer.length < maxMessageSizeBytes &&
+                    command.ops.documents.length < maxWriteBatchSize) {
+                    // Pushing to the ops document sequence returns the total byte length of the document sequence.
+                    commandLength = MESSAGE_OVERHEAD_BYTES + command.ops.push(operation, operationBuffer);
+                    // Increment the builder's current model index.
+                    this.currentModelIndex++;
+                }
+                else {
+                    // The operation cannot fit in the current command and will need to
+                    // go in the next batch. Exit the loop.
+                    break;
+                }
+            }
+            else {
+                // The namespace is not already in the nsInfo so we will set it in the map, and
+                // construct our nsInfo and ops documents and buffers.
+                namespaces.set(ns, currentNamespaceIndex);
+                const nsInfo = { ns: ns };
+                const operation = buildOperation(model, currentNamespaceIndex, this.pkFactory);
+                let nsInfoBuffer;
+                let operationBuffer;
+                try {
+                    nsInfoBuffer = bson_1.BSON.serialize(nsInfo);
+                    operationBuffer = bson_1.BSON.serialize(operation);
+                }
+                catch (cause) {
+                    throw new error_1.MongoInvalidArgumentError(`Could not serialize ns info to BSON`, { cause });
+                }
+                validateBufferSize('nsInfo', nsInfoBuffer, maxBsonObjectSize);
+                validateBufferSize('ops', operationBuffer, maxBsonObjectSize);
+                // Check if the operation and nsInfo buffers can fit in the command. If they
+                // can, then add the operation and nsInfo to their respective document
+                // sequences and increment the current length as long as the ops don't exceed
+                // the maxWriteBatchSize.
+                if (commandLength + nsInfoBuffer.length + operationBuffer.length < maxMessageSizeBytes &&
+                    command.ops.documents.length < maxWriteBatchSize) {
+                    // Pushing to the ops document sequence returns the total byte length of the document sequence.
+                    commandLength =
+                        MESSAGE_OVERHEAD_BYTES +
+                            command.nsInfo.push(nsInfo, nsInfoBuffer) +
+                            command.ops.push(operation, operationBuffer);
+                    // We've added a new namespace, increment the namespace index.
+                    currentNamespaceIndex++;
+                    // Increment the builder's current model index.
+                    this.currentModelIndex++;
+                }
+                else {
+                    // The operation cannot fit in the current command and will need to
+                    // go in the next batch. Exit the loop.
+                    break;
+                }
+            }
+        }
+        // Set the last operations and return the command.
+        this.lastOperations = command.ops.documents;
+        return command;
+    }
+    baseCommand() {
+        const command = {
+            bulkWrite: 1,
+            errorsOnly: this.errorsOnly,
+            ordered: this.options.ordered ?? true,
+            ops: new commands_1.DocumentSequence('ops'),
+            nsInfo: new commands_1.DocumentSequence('nsInfo')
+        };
+        // Add bypassDocumentValidation if it was present in the options.
+        if (this.options.bypassDocumentValidation != null) {
+            command.bypassDocumentValidation = this.options.bypassDocumentValidation;
+        }
+        // Add let if it was present in the options.
+        if (this.options.let) {
+            command.let = this.options.let;
+        }
+        // we check for undefined specifically here to allow falsy values
+        // eslint-disable-next-line no-restricted-syntax
+        if (this.options.comment !== undefined) {
+            command.comment = this.options.comment;
+        }
+        return command;
+    }
+}
+exports.ClientBulkWriteCommandBuilder = ClientBulkWriteCommandBuilder;
+function validateBufferSize(name, buffer, maxBsonObjectSize) {
+    if (buffer.length > maxBsonObjectSize) {
+        throw new error_1.MongoInvalidArgumentError(`Client bulk write operation ${name} of length ${buffer.length} exceeds the max bson object size of ${maxBsonObjectSize}`);
+    }
+}
+/**
+ * Build the insert one operation.
+ * @param model - The insert one model.
+ * @param index - The namespace index.
+ * @returns the operation.
+ */
+const buildInsertOneOperation = (model, index, pkFactory) => {
+    const document = {
+        insert: index,
+        document: model.document
+    };
+    document.document._id = model.document._id ?? pkFactory.createPk();
+    return document;
+};
+exports.buildInsertOneOperation = buildInsertOneOperation;
+/**
+ * Build the delete one operation.
+ * @param model - The insert many model.
+ * @param index - The namespace index.
+ * @returns the operation.
+ */
+const buildDeleteOneOperation = (model, index) => {
+    return createDeleteOperation(model, index, false);
+};
+exports.buildDeleteOneOperation = buildDeleteOneOperation;
+/**
+ * Build the delete many operation.
+ * @param model - The delete many model.
+ * @param index - The namespace index.
+ * @returns the operation.
+ */
+const buildDeleteManyOperation = (model, index) => {
+    return createDeleteOperation(model, index, true);
+};
+exports.buildDeleteManyOperation = buildDeleteManyOperation;
+/**
+ * Creates a delete operation based on the parameters.
+ */
+function createDeleteOperation(model, index, multi) {
+    const document = {
+        delete: index,
+        multi: multi,
+        filter: model.filter
+    };
+    if (model.hint) {
+        document.hint = model.hint;
+    }
+    if (model.collation) {
+        document.collation = model.collation;
+    }
+    return document;
+}
+/**
+ * Build the update one operation.
+ * @param model - The update one model.
+ * @param index - The namespace index.
+ * @returns the operation.
+ */
+const buildUpdateOneOperation = (model, index) => {
+    return createUpdateOperation(model, index, false);
+};
+exports.buildUpdateOneOperation = buildUpdateOneOperation;
+/**
+ * Build the update many operation.
+ * @param model - The update many model.
+ * @param index - The namespace index.
+ * @returns the operation.
+ */
+const buildUpdateManyOperation = (model, index) => {
+    return createUpdateOperation(model, index, true);
+};
+exports.buildUpdateManyOperation = buildUpdateManyOperation;
+/**
+ * Validate the update document.
+ * @param update - The update document.
+ */
+function validateUpdate(update) {
+    if (!(0, utils_1.hasAtomicOperators)(update)) {
+        throw new error_1.MongoAPIError('Client bulk write update models must only contain atomic modifiers (start with $) and must not be empty.');
+    }
+}
+/**
+ * Creates a delete operation based on the parameters.
+ */
+function createUpdateOperation(model, index, multi) {
+    // Update documents provided in UpdateOne and UpdateMany write models are
+    // required only to contain atomic modifiers (i.e. keys that start with "$").
+    // Drivers MUST throw an error if an update document is empty or if the
+    // document's first key does not start with "$".
+    validateUpdate(model.update);
+    const document = {
+        update: index,
+        multi: multi,
+        filter: model.filter,
+        updateMods: model.update
+    };
+    if (model.hint) {
+        document.hint = model.hint;
+    }
+    if (model.upsert) {
+        document.upsert = model.upsert;
+    }
+    if (model.arrayFilters) {
+        document.arrayFilters = model.arrayFilters;
+    }
+    if (model.collation) {
+        document.collation = model.collation;
+    }
+    return document;
+}
+/**
+ * Build the replace one operation.
+ * @param model - The replace one model.
+ * @param index - The namespace index.
+ * @returns the operation.
+ */
+const buildReplaceOneOperation = (model, index) => {
+    if ((0, utils_1.hasAtomicOperators)(model.replacement)) {
+        throw new error_1.MongoAPIError('Client bulk write replace models must not contain atomic modifiers (start with $) and must not be empty.');
+    }
+    const document = {
+        update: index,
+        multi: false,
+        filter: model.filter,
+        updateMods: model.replacement
+    };
+    if (model.hint) {
+        document.hint = model.hint;
+    }
+    if (model.upsert) {
+        document.upsert = model.upsert;
+    }
+    if (model.collation) {
+        document.collation = model.collation;
+    }
+    return document;
+};
+exports.buildReplaceOneOperation = buildReplaceOneOperation;
+/** @internal */
+function buildOperation(model, index, pkFactory) {
+    switch (model.name) {
+        case 'insertOne':
+            return (0, exports.buildInsertOneOperation)(model, index, pkFactory);
+        case 'deleteOne':
+            return (0, exports.buildDeleteOneOperation)(model, index);
+        case 'deleteMany':
+            return (0, exports.buildDeleteManyOperation)(model, index);
+        case 'updateOne':
+            return (0, exports.buildUpdateOneOperation)(model, index);
+        case 'updateMany':
+            return (0, exports.buildUpdateManyOperation)(model, index);
+        case 'replaceOne':
+            return (0, exports.buildReplaceOneOperation)(model, index);
+    }
+}
+//# sourceMappingURL=command_builder.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/client_bulk_write/command_builder.js.map b/backend/node_modules/mongodb/lib/operations/client_bulk_write/command_builder.js.map
new file mode 100644
index 0000000..fd3840d
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/client_bulk_write/command_builder.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/client_bulk_write/common.js b/backend/node_modules/mongodb/lib/operations/client_bulk_write/common.js
new file mode 100644
index 0000000..023264f
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/client_bulk_write/common.js
@@ -0,0 +1,3 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+//# sourceMappingURL=common.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/client_bulk_write/common.js.map b/backend/node_modules/mongodb/lib/operations/client_bulk_write/common.js.map
new file mode 100644
index 0000000..cb32596
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/client_bulk_write/common.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"common.js","sourceRoot":"","sources":["../../../src/operations/client_bulk_write/common.ts"],"names":[],"mappings":""}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/client_bulk_write/executor.js b/backend/node_modules/mongodb/lib/operations/client_bulk_write/executor.js
new file mode 100644
index 0000000..cab6fe0
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/client_bulk_write/executor.js
@@ -0,0 +1,120 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ClientBulkWriteExecutor = void 0;
+const abstract_cursor_1 = require("../../cursor/abstract_cursor");
+const client_bulk_write_cursor_1 = require("../../cursor/client_bulk_write_cursor");
+const error_1 = require("../../error");
+const timeout_1 = require("../../timeout");
+const utils_1 = require("../../utils");
+const write_concern_1 = require("../../write_concern");
+const execute_operation_1 = require("../execute_operation");
+const client_bulk_write_1 = require("./client_bulk_write");
+const command_builder_1 = require("./command_builder");
+const results_merger_1 = require("./results_merger");
+/**
+ * Responsible for executing a client bulk write.
+ * @internal
+ */
+class ClientBulkWriteExecutor {
+    /**
+     * Instantiate the executor.
+     * @param client - The mongo client.
+     * @param operations - The user supplied bulk write models.
+     * @param options - The bulk write options.
+     */
+    constructor(client, operations, options) {
+        if (operations.length === 0) {
+            throw new error_1.MongoClientBulkWriteExecutionError('No client bulk write models were provided.');
+        }
+        this.client = client;
+        this.operations = operations;
+        this.options = {
+            ordered: true,
+            bypassDocumentValidation: false,
+            verboseResults: false,
+            ...options
+        };
+        // If no write concern was provided, we inherit one from the client.
+        if (!this.options.writeConcern) {
+            this.options.writeConcern = write_concern_1.WriteConcern.fromOptions(this.client.s.options);
+        }
+        if (this.options.writeConcern?.w === 0) {
+            if (this.options.verboseResults) {
+                throw new error_1.MongoInvalidArgumentError('Cannot request unacknowledged write concern and verbose results');
+            }
+            if (this.options.ordered) {
+                throw new error_1.MongoInvalidArgumentError('Cannot request unacknowledged write concern and ordered writes');
+            }
+        }
+    }
+    /**
+     * Execute the client bulk write. Will split commands into batches and exhaust the cursors
+     * for each, then merge the results into one.
+     * @returns The result.
+     */
+    async execute() {
+        // The command builder will take the user provided models and potential split the batch
+        // into multiple commands due to size.
+        const pkFactory = this.client.s.options.pkFactory;
+        const commandBuilder = new command_builder_1.ClientBulkWriteCommandBuilder(this.operations, this.options, pkFactory);
+        // Unacknowledged writes need to execute all batches and return { ok: 1}
+        const resolvedOptions = (0, utils_1.resolveTimeoutOptions)(this.client, this.options);
+        const context = timeout_1.TimeoutContext.create(resolvedOptions);
+        if (this.options.writeConcern?.w === 0) {
+            while (commandBuilder.hasNextBatch()) {
+                const operation = new client_bulk_write_1.ClientBulkWriteOperation(commandBuilder, this.options);
+                await (0, execute_operation_1.executeOperation)(this.client, operation, context);
+            }
+            return results_merger_1.ClientBulkWriteResultsMerger.unacknowledged();
+        }
+        else {
+            const resultsMerger = new results_merger_1.ClientBulkWriteResultsMerger(this.options);
+            // For each command will will create and exhaust a cursor for the results.
+            while (commandBuilder.hasNextBatch()) {
+                const cursorContext = new abstract_cursor_1.CursorTimeoutContext(context, Symbol());
+                const options = {
+                    ...this.options,
+                    timeoutContext: cursorContext,
+                    ...(resolvedOptions.timeoutMS != null && { timeoutMode: abstract_cursor_1.CursorTimeoutMode.LIFETIME })
+                };
+                const cursor = new client_bulk_write_cursor_1.ClientBulkWriteCursor(this.client, commandBuilder, options);
+                try {
+                    await resultsMerger.merge(cursor);
+                }
+                catch (error) {
+                    // Write concern errors are recorded in the writeConcernErrors field on MongoClientBulkWriteError.
+                    // When a write concern error is encountered, it should not terminate execution of the bulk write
+                    // for either ordered or unordered bulk writes. However, drivers MUST throw an exception at the end
+                    // of execution if any write concern errors were observed.
+                    if (error instanceof error_1.MongoServerError && !(error instanceof error_1.MongoClientBulkWriteError)) {
+                        // Server side errors need to be wrapped inside a MongoClientBulkWriteError, where the root
+                        // cause is the error property and a partial result is to be included.
+                        const bulkWriteError = new error_1.MongoClientBulkWriteError({
+                            message: 'Mongo client bulk write encountered an error during execution'
+                        });
+                        bulkWriteError.cause = error;
+                        bulkWriteError.partialResult = resultsMerger.bulkWriteResult;
+                        throw bulkWriteError;
+                    }
+                    else {
+                        // Client side errors are just thrown.
+                        throw error;
+                    }
+                }
+            }
+            // If we have write concern errors or unordered write errors at the end we throw.
+            if (resultsMerger.writeConcernErrors.length > 0 || resultsMerger.writeErrors.size > 0) {
+                const error = new error_1.MongoClientBulkWriteError({
+                    message: 'Mongo client bulk write encountered errors during execution.'
+                });
+                error.writeConcernErrors = resultsMerger.writeConcernErrors;
+                error.writeErrors = resultsMerger.writeErrors;
+                error.partialResult = resultsMerger.bulkWriteResult;
+                throw error;
+            }
+            return resultsMerger.bulkWriteResult;
+        }
+    }
+}
+exports.ClientBulkWriteExecutor = ClientBulkWriteExecutor;
+//# sourceMappingURL=executor.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/client_bulk_write/executor.js.map b/backend/node_modules/mongodb/lib/operations/client_bulk_write/executor.js.map
new file mode 100644
index 0000000..bce5db9
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/client_bulk_write/executor.js.map
@@ -0,0 +1 @@
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diff --git a/backend/node_modules/mongodb/lib/operations/client_bulk_write/results_merger.js b/backend/node_modules/mongodb/lib/operations/client_bulk_write/results_merger.js
new file mode 100644
index 0000000..3d3b5dc
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/client_bulk_write/results_merger.js
@@ -0,0 +1,204 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ClientBulkWriteResultsMerger = void 0;
+const __1 = require("../..");
+const error_1 = require("../../error");
+/**
+ * Unacknowledged bulk writes are always the same.
+ */
+const UNACKNOWLEDGED = {
+    acknowledged: false,
+    insertedCount: 0,
+    upsertedCount: 0,
+    matchedCount: 0,
+    modifiedCount: 0,
+    deletedCount: 0,
+    insertResults: undefined,
+    updateResults: undefined,
+    deleteResults: undefined
+};
+/**
+ * Merges client bulk write cursor responses together into a single result.
+ * @internal
+ */
+class ClientBulkWriteResultsMerger {
+    /**
+     * @returns The standard unacknowledged bulk write result.
+     */
+    static unacknowledged() {
+        return UNACKNOWLEDGED;
+    }
+    /**
+     * Instantiate the merger.
+     * @param options - The options.
+     */
+    constructor(options) {
+        this.options = options;
+        this.currentBatchOffset = 0;
+        this.writeConcernErrors = [];
+        this.writeErrors = new Map();
+        this.result = {
+            acknowledged: true,
+            insertedCount: 0,
+            upsertedCount: 0,
+            matchedCount: 0,
+            modifiedCount: 0,
+            deletedCount: 0,
+            insertResults: undefined,
+            updateResults: undefined,
+            deleteResults: undefined
+        };
+        if (options.verboseResults) {
+            this.result.insertResults = new Map();
+            this.result.updateResults = new Map();
+            this.result.deleteResults = new Map();
+        }
+    }
+    /**
+     * Get the bulk write result object.
+     */
+    get bulkWriteResult() {
+        return {
+            acknowledged: this.result.acknowledged,
+            insertedCount: this.result.insertedCount,
+            upsertedCount: this.result.upsertedCount,
+            matchedCount: this.result.matchedCount,
+            modifiedCount: this.result.modifiedCount,
+            deletedCount: this.result.deletedCount,
+            insertResults: this.result.insertResults,
+            updateResults: this.result.updateResults,
+            deleteResults: this.result.deleteResults
+        };
+    }
+    /**
+     * Merge the results in the cursor to the existing result.
+     * @param currentBatchOffset - The offset index to the original models.
+     * @param response - The cursor response.
+     * @param documents - The documents in the cursor.
+     * @returns The current result.
+     */
+    async merge(cursor) {
+        let writeConcernErrorResult;
+        try {
+            for await (const document of cursor) {
+                // Only add to maps if ok: 1
+                if (document.ok === 1) {
+                    if (this.options.verboseResults) {
+                        this.processDocument(cursor, document);
+                    }
+                }
+                else {
+                    // If an individual write error is encountered during an ordered bulk write, drivers MUST
+                    // record the error in writeErrors and immediately throw the exception. Otherwise, drivers
+                    // MUST continue to iterate the results cursor and execute any further bulkWrite batches.
+                    if (this.options.ordered) {
+                        const error = new error_1.MongoClientBulkWriteError({
+                            message: 'Mongo client ordered bulk write encountered a write error.'
+                        });
+                        error.writeErrors.set(document.idx + this.currentBatchOffset, {
+                            code: document.code,
+                            message: document.errmsg
+                        });
+                        error.partialResult = this.result;
+                        throw error;
+                    }
+                    else {
+                        this.writeErrors.set(document.idx + this.currentBatchOffset, {
+                            code: document.code,
+                            message: document.errmsg
+                        });
+                    }
+                }
+            }
+        }
+        catch (error) {
+            if (error instanceof __1.MongoWriteConcernError) {
+                const result = error.result;
+                writeConcernErrorResult = {
+                    insertedCount: result.nInserted,
+                    upsertedCount: result.nUpserted,
+                    matchedCount: result.nMatched,
+                    modifiedCount: result.nModified,
+                    deletedCount: result.nDeleted,
+                    writeConcernError: result.writeConcernError
+                };
+                if (this.options.verboseResults && result.cursor.firstBatch) {
+                    for (const document of result.cursor.firstBatch) {
+                        if (document.ok === 1) {
+                            this.processDocument(cursor, document);
+                        }
+                    }
+                }
+            }
+            else {
+                throw error;
+            }
+        }
+        finally {
+            // Update the counts from the cursor response.
+            if (cursor.response) {
+                const response = cursor.response;
+                this.incrementCounts(response);
+            }
+            // Increment the batch offset.
+            this.currentBatchOffset += cursor.operations.length;
+        }
+        // If we have write concern errors ensure they are added.
+        if (writeConcernErrorResult) {
+            const writeConcernError = writeConcernErrorResult.writeConcernError;
+            this.incrementCounts(writeConcernErrorResult);
+            this.writeConcernErrors.push({
+                code: writeConcernError.code,
+                message: writeConcernError.errmsg
+            });
+        }
+        return this.result;
+    }
+    /**
+     * Process an individual document in the results.
+     * @param cursor - The cursor.
+     * @param document - The document to process.
+     */
+    processDocument(cursor, document) {
+        // Get the corresponding operation from the command.
+        const operation = cursor.operations[document.idx];
+        // Handle insert results.
+        if ('insert' in operation) {
+            this.result.insertResults?.set(document.idx + this.currentBatchOffset, {
+                insertedId: operation.document._id
+            });
+        }
+        // Handle update results.
+        if ('update' in operation) {
+            const result = {
+                matchedCount: document.n,
+                modifiedCount: document.nModified ?? 0,
+                // Check if the bulk did actually upsert.
+                didUpsert: document.upserted != null
+            };
+            if (document.upserted) {
+                result.upsertedId = document.upserted._id;
+            }
+            this.result.updateResults?.set(document.idx + this.currentBatchOffset, result);
+        }
+        // Handle delete results.
+        if ('delete' in operation) {
+            this.result.deleteResults?.set(document.idx + this.currentBatchOffset, {
+                deletedCount: document.n
+            });
+        }
+    }
+    /**
+     * Increment the result counts.
+     * @param document - The document with the results.
+     */
+    incrementCounts(document) {
+        this.result.insertedCount += document.insertedCount;
+        this.result.upsertedCount += document.upsertedCount;
+        this.result.matchedCount += document.matchedCount;
+        this.result.modifiedCount += document.modifiedCount;
+        this.result.deletedCount += document.deletedCount;
+    }
+}
+exports.ClientBulkWriteResultsMerger = ClientBulkWriteResultsMerger;
+//# sourceMappingURL=results_merger.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/client_bulk_write/results_merger.js.map b/backend/node_modules/mongodb/lib/operations/client_bulk_write/results_merger.js.map
new file mode 100644
index 0000000..61ccda7
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/client_bulk_write/results_merger.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/collections.js b/backend/node_modules/mongodb/lib/operations/collections.js
new file mode 100644
index 0000000..bd627b9
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/collections.js
@@ -0,0 +1,33 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.CollectionsOperation = void 0;
+const collection_1 = require("../collection");
+const operation_1 = require("./operation");
+/** @internal */
+class CollectionsOperation extends operation_1.AbstractOperation {
+    constructor(db, options) {
+        super(options);
+        this.options = options;
+        this.db = db;
+    }
+    get commandName() {
+        return 'listCollections';
+    }
+    async execute(server, session) {
+        // Let's get the collection names
+        const documents = await this.db
+            .listCollections({}, { ...this.options, nameOnly: true, readPreference: this.readPreference, session })
+            .toArray();
+        const collections = [];
+        for (const { name } of documents) {
+            if (!name.includes('$')) {
+                // Filter collections removing any illegal ones
+                collections.push(new collection_1.Collection(this.db, name, this.db.s.options));
+            }
+        }
+        // Return the collection objects
+        return collections;
+    }
+}
+exports.CollectionsOperation = CollectionsOperation;
+//# sourceMappingURL=collections.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/collections.js.map b/backend/node_modules/mongodb/lib/operations/collections.js.map
new file mode 100644
index 0000000..9c991da
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/collections.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"collections.js","sourceRoot":"","sources":["../../src/operations/collections.ts"],"names":[],"mappings":";;;AAAA,8CAA2C;AAI3C,2CAAuE;AAMvE,gBAAgB;AAChB,MAAa,oBAAqB,SAAQ,6BAA+B;IAIvE,YAAY,EAAM,EAAE,OAA2B;QAC7C,KAAK,CAAC,OAAO,CAAC,CAAC;QACf,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACvB,IAAI,CAAC,EAAE,GAAG,EAAE,CAAC;IACf,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,iBAA0B,CAAC;IACpC,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC;QAElC,iCAAiC;QACjC,MAAM,SAAS,GAAG,MAAM,IAAI,CAAC,EAAE;aAC5B,eAAe,CACd,EAAE,EACF,EAAE,GAAG,IAAI,CAAC,OAAO,EAAE,QAAQ,EAAE,IAAI,EAAE,cAAc,EAAE,IAAI,CAAC,cAAc,EAAE,OAAO,EAAE,CAClF;aACA,OAAO,EAAE,CAAC;QACb,MAAM,WAAW,GAAiB,EAAE,CAAC;QACrC,KAAK,MAAM,EAAE,IAAI,EAAE,IAAI,SAAS,EAAE,CAAC;YACjC,IAAI,CAAC,IAAI,CAAC,QAAQ,CAAC,GAAG,CAAC,EAAE,CAAC;gBACxB,+CAA+C;gBAC/C,WAAW,CAAC,IAAI,CAAC,IAAI,uBAAU,CAAC,IAAI,CAAC,EAAE,EAAE,IAAI,EAAE,IAAI,CAAC,EAAE,CAAC,CAAC,CAAC,OAAO,CAAC,CAAC,CAAC;YACrE,CAAC;QACH,CAAC;QACD,gCAAgC;QAChC,OAAO,WAAW,CAAC;IACrB,CAAC;CACF;AAnCD,oDAmCC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/command.js b/backend/node_modules/mongodb/lib/operations/command.js
new file mode 100644
index 0000000..828c17e
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/command.js
@@ -0,0 +1,80 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.CommandOperation = void 0;
+const error_1 = require("../error");
+const explain_1 = require("../explain");
+const read_concern_1 = require("../read_concern");
+const server_selection_1 = require("../sdam/server_selection");
+const utils_1 = require("../utils");
+const write_concern_1 = require("../write_concern");
+const operation_1 = require("./operation");
+/** @internal */
+class CommandOperation extends operation_1.AbstractOperation {
+    constructor(parent, options) {
+        super(options);
+        this.options = options ?? {};
+        // NOTE: this was explicitly added for the add/remove user operations, it's likely
+        //       something we'd want to reconsider. Perhaps those commands can use `Admin`
+        //       as a parent?
+        const dbNameOverride = options?.dbName || options?.authdb;
+        if (dbNameOverride) {
+            this.ns = new utils_1.MongoDBNamespace(dbNameOverride, '$cmd');
+        }
+        else {
+            this.ns = parent
+                ? parent.s.namespace.withCollection('$cmd')
+                : new utils_1.MongoDBNamespace('admin', '$cmd');
+        }
+        this.readConcern = read_concern_1.ReadConcern.fromOptions(options);
+        this.writeConcern = write_concern_1.WriteConcern.fromOptions(options);
+        if (this.hasAspect(operation_1.Aspect.EXPLAINABLE)) {
+            this.explain = explain_1.Explain.fromOptions(options);
+            if (this.explain)
+                (0, explain_1.validateExplainTimeoutOptions)(this.options, this.explain);
+        }
+        else if (options?.explain != null) {
+            throw new error_1.MongoInvalidArgumentError(`Option "explain" is not supported on this command`);
+        }
+    }
+    get canRetryWrite() {
+        if (this.hasAspect(operation_1.Aspect.EXPLAINABLE)) {
+            return this.explain == null;
+        }
+        return super.canRetryWrite;
+    }
+    async executeCommand(server, session, cmd, timeoutContext, responseType) {
+        this.server = server;
+        const options = {
+            ...this.options,
+            ...this.bsonOptions,
+            timeoutContext,
+            readPreference: this.readPreference,
+            session
+        };
+        const serverWireVersion = (0, utils_1.maxWireVersion)(server);
+        const inTransaction = this.session && this.session.inTransaction();
+        if (this.readConcern && (0, utils_1.commandSupportsReadConcern)(cmd) && !inTransaction) {
+            Object.assign(cmd, { readConcern: this.readConcern });
+        }
+        if (this.trySecondaryWrite && serverWireVersion < server_selection_1.MIN_SECONDARY_WRITE_WIRE_VERSION) {
+            options.omitReadPreference = true;
+        }
+        if (this.writeConcern && this.hasAspect(operation_1.Aspect.WRITE_OPERATION) && !inTransaction) {
+            write_concern_1.WriteConcern.apply(cmd, this.writeConcern);
+        }
+        if (options.collation &&
+            typeof options.collation === 'object' &&
+            !this.hasAspect(operation_1.Aspect.SKIP_COLLATION)) {
+            Object.assign(cmd, { collation: options.collation });
+        }
+        if (typeof options.maxTimeMS === 'number') {
+            cmd.maxTimeMS = options.maxTimeMS;
+        }
+        if (this.hasAspect(operation_1.Aspect.EXPLAINABLE) && this.explain) {
+            cmd = (0, explain_1.decorateWithExplain)(cmd, this.explain);
+        }
+        return await server.command(this.ns, cmd, options, responseType);
+    }
+}
+exports.CommandOperation = CommandOperation;
+//# sourceMappingURL=command.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/command.js.map b/backend/node_modules/mongodb/lib/operations/command.js.map
new file mode 100644
index 0000000..e1d36c7
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/command.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"command.js","sourceRoot":"","sources":["../../src/operations/command.ts"],"names":[],"mappings":";;;AAEA,oCAAqD;AACrD,wCAKoB;AACpB,kDAA8C;AAG9C,+DAA4E;AAG5E,oCAAwF;AACxF,oDAA0E;AAE1E,2CAA+E;AAwD/E,gBAAgB;AAChB,MAAsB,gBAAoB,SAAQ,6BAAoB;IAMpE,YAAY,MAAwB,EAAE,OAAiC;QACrE,KAAK,CAAC,OAAO,CAAC,CAAC;QACf,IAAI,CAAC,OAAO,GAAG,OAAO,IAAI,EAAE,CAAC;QAE7B,kFAAkF;QAClF,kFAAkF;QAClF,qBAAqB;QACrB,MAAM,cAAc,GAAG,OAAO,EAAE,MAAM,IAAI,OAAO,EAAE,MAAM,CAAC;QAC1D,IAAI,cAAc,EAAE,CAAC;YACnB,IAAI,CAAC,EAAE,GAAG,IAAI,wBAAgB,CAAC,cAAc,EAAE,MAAM,CAAC,CAAC;QACzD,CAAC;aAAM,CAAC;YACN,IAAI,CAAC,EAAE,GAAG,MAAM;gBACd,CAAC,CAAC,MAAM,CAAC,CAAC,CAAC,SAAS,CAAC,cAAc,CAAC,MAAM,CAAC;gBAC3C,CAAC,CAAC,IAAI,wBAAgB,CAAC,OAAO,EAAE,MAAM,CAAC,CAAC;QAC5C,CAAC;QAED,IAAI,CAAC,WAAW,GAAG,0BAAW,CAAC,WAAW,CAAC,OAAO,CAAC,CAAC;QACpD,IAAI,CAAC,YAAY,GAAG,4BAAY,CAAC,WAAW,CAAC,OAAO,CAAC,CAAC;QAEtD,IAAI,IAAI,CAAC,SAAS,CAAC,kBAAM,CAAC,WAAW,CAAC,EAAE,CAAC;YACvC,IAAI,CAAC,OAAO,GAAG,iBAAO,CAAC,WAAW,CAAC,OAAO,CAAC,CAAC;YAC5C,IAAI,IAAI,CAAC,OAAO;gBAAE,IAAA,uCAA6B,EAAC,IAAI,CAAC,OAAO,EAAE,IAAI,CAAC,OAAO,CAAC,CAAC;QAC9E,CAAC;aAAM,IAAI,OAAO,EAAE,OAAO,IAAI,IAAI,EAAE,CAAC;YACpC,MAAM,IAAI,iCAAyB,CAAC,mDAAmD,CAAC,CAAC;QAC3F,CAAC;IACH,CAAC;IAED,IAAa,aAAa;QACxB,IAAI,IAAI,CAAC,SAAS,CAAC,kBAAM,CAAC,WAAW,CAAC,EAAE,CAAC;YACvC,OAAO,IAAI,CAAC,OAAO,IAAI,IAAI,CAAC;QAC9B,CAAC;QACD,OAAO,KAAK,CAAC,aAAa,CAAC;IAC7B,CAAC;IAiBD,KAAK,CAAC,cAAc,CAClB,MAAc,EACd,OAAkC,EAClC,GAAa,EACb,cAA8B,EAC9B,YAAyC;QAEzC,IAAI,CAAC,MAAM,GAAG,MAAM,CAAC;QAErB,MAAM,OAAO,GAAG;YACd,GAAG,IAAI,CAAC,OAAO;YACf,GAAG,IAAI,CAAC,WAAW;YACnB,cAAc;YACd,cAAc,EAAE,IAAI,CAAC,cAAc;YACnC,OAAO;SACR,CAAC;QAEF,MAAM,iBAAiB,GAAG,IAAA,sBAAc,EAAC,MAAM,CAAC,CAAC;QACjD,MAAM,aAAa,GAAG,IAAI,CAAC,OAAO,IAAI,IAAI,CAAC,OAAO,CAAC,aAAa,EAAE,CAAC;QAEnE,IAAI,IAAI,CAAC,WAAW,IAAI,IAAA,kCAA0B,EAAC,GAAG,CAAC,IAAI,CAAC,aAAa,EAAE,CAAC;YAC1E,MAAM,CAAC,MAAM,CAAC,GAAG,EAAE,EAAE,WAAW,EAAE,IAAI,CAAC,WAAW,EAAE,CAAC,CAAC;QACxD,CAAC;QAED,IAAI,IAAI,CAAC,iBAAiB,IAAI,iBAAiB,GAAG,mDAAgC,EAAE,CAAC;YACnF,OAAO,CAAC,kBAAkB,GAAG,IAAI,CAAC;QACpC,CAAC;QAED,IAAI,IAAI,CAAC,YAAY,IAAI,IAAI,CAAC,SAAS,CAAC,kBAAM,CAAC,eAAe,CAAC,IAAI,CAAC,aAAa,EAAE,CAAC;YAClF,4BAAY,CAAC,KAAK,CAAC,GAAG,EAAE,IAAI,CAAC,YAAY,CAAC,CAAC;QAC7C,CAAC;QAED,IACE,OAAO,CAAC,SAAS;YACjB,OAAO,OAAO,CAAC,SAAS,KAAK,QAAQ;YACrC,CAAC,IAAI,CAAC,SAAS,CAAC,kBAAM,CAAC,cAAc,CAAC,EACtC,CAAC;YACD,MAAM,CAAC,MAAM,CAAC,GAAG,EAAE,EAAE,SAAS,EAAE,OAAO,CAAC,SAAS,EAAE,CAAC,CAAC;QACvD,CAAC;QAED,IAAI,OAAO,OAAO,CAAC,SAAS,KAAK,QAAQ,EAAE,CAAC;YAC1C,GAAG,CAAC,SAAS,GAAG,OAAO,CAAC,SAAS,CAAC;QACpC,CAAC;QAED,IAAI,IAAI,CAAC,SAAS,CAAC,kBAAM,CAAC,WAAW,CAAC,IAAI,IAAI,CAAC,OAAO,EAAE,CAAC;YACvD,GAAG,GAAG,IAAA,6BAAmB,EAAC,GAAG,EAAE,IAAI,CAAC,OAAO,CAAC,CAAC;QAC/C,CAAC;QAED,OAAO,MAAM,MAAM,CAAC,OAAO,CAAC,IAAI,CAAC,EAAE,EAAE,GAAG,EAAE,OAAO,EAAE,YAAY,CAAC,CAAC;IACnE,CAAC;CACF;AAzGD,4CAyGC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/count.js b/backend/node_modules/mongodb/lib/operations/count.js
new file mode 100644
index 0000000..900c5c2
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/count.js
@@ -0,0 +1,41 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.CountOperation = void 0;
+const command_1 = require("./command");
+const operation_1 = require("./operation");
+/** @internal */
+class CountOperation extends command_1.CommandOperation {
+    constructor(namespace, filter, options) {
+        super({ s: { namespace: namespace } }, options);
+        this.options = options;
+        this.collectionName = namespace.collection;
+        this.query = filter;
+    }
+    get commandName() {
+        return 'count';
+    }
+    async execute(server, session, timeoutContext) {
+        const options = this.options;
+        const cmd = {
+            count: this.collectionName,
+            query: this.query
+        };
+        if (typeof options.limit === 'number') {
+            cmd.limit = options.limit;
+        }
+        if (typeof options.skip === 'number') {
+            cmd.skip = options.skip;
+        }
+        if (options.hint != null) {
+            cmd.hint = options.hint;
+        }
+        if (typeof options.maxTimeMS === 'number') {
+            cmd.maxTimeMS = options.maxTimeMS;
+        }
+        const result = await super.executeCommand(server, session, cmd, timeoutContext);
+        return result ? result.n : 0;
+    }
+}
+exports.CountOperation = CountOperation;
+(0, operation_1.defineAspects)(CountOperation, [operation_1.Aspect.READ_OPERATION, operation_1.Aspect.RETRYABLE]);
+//# sourceMappingURL=count.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/count.js.map b/backend/node_modules/mongodb/lib/operations/count.js.map
new file mode 100644
index 0000000..d14dc5a
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/count.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"count.js","sourceRoot":"","sources":["../../src/operations/count.ts"],"names":[],"mappings":";;;AAMA,uCAA2E;AAC3E,2CAAoD;AAgBpD,gBAAgB;AAChB,MAAa,cAAe,SAAQ,0BAAwB;IAK1D,YAAY,SAA2B,EAAE,MAAgB,EAAE,OAAqB;QAC9E,KAAK,CAAC,EAAE,CAAC,EAAE,EAAE,SAAS,EAAE,SAAS,EAAE,EAA2B,EAAE,OAAO,CAAC,CAAC;QAEzE,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACvB,IAAI,CAAC,cAAc,GAAG,SAAS,CAAC,UAAU,CAAC;QAC3C,IAAI,CAAC,KAAK,GAAG,MAAM,CAAC;IACtB,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,OAAgB,CAAC;IAC1B,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,OAAO,GAAG,IAAI,CAAC,OAAO,CAAC;QAC7B,MAAM,GAAG,GAAa;YACpB,KAAK,EAAE,IAAI,CAAC,cAAc;YAC1B,KAAK,EAAE,IAAI,CAAC,KAAK;SAClB,CAAC;QAEF,IAAI,OAAO,OAAO,CAAC,KAAK,KAAK,QAAQ,EAAE,CAAC;YACtC,GAAG,CAAC,KAAK,GAAG,OAAO,CAAC,KAAK,CAAC;QAC5B,CAAC;QAED,IAAI,OAAO,OAAO,CAAC,IAAI,KAAK,QAAQ,EAAE,CAAC;YACrC,GAAG,CAAC,IAAI,GAAG,OAAO,CAAC,IAAI,CAAC;QAC1B,CAAC;QAED,IAAI,OAAO,CAAC,IAAI,IAAI,IAAI,EAAE,CAAC;YACzB,GAAG,CAAC,IAAI,GAAG,OAAO,CAAC,IAAI,CAAC;QAC1B,CAAC;QAED,IAAI,OAAO,OAAO,CAAC,SAAS,KAAK,QAAQ,EAAE,CAAC;YAC1C,GAAG,CAAC,SAAS,GAAG,OAAO,CAAC,SAAS,CAAC;QACpC,CAAC;QAED,MAAM,MAAM,GAAG,MAAM,KAAK,CAAC,cAAc,CAAC,MAAM,EAAE,OAAO,EAAE,GAAG,EAAE,cAAc,CAAC,CAAC;QAChF,OAAO,MAAM,CAAC,CAAC,CAAC,MAAM,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;IAC/B,CAAC;CACF;AA/CD,wCA+CC;AAED,IAAA,yBAAa,EAAC,cAAc,EAAE,CAAC,kBAAM,CAAC,cAAc,EAAE,kBAAM,CAAC,SAAS,CAAC,CAAC,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/create_collection.js b/backend/node_modules/mongodb/lib/operations/create_collection.js
new file mode 100644
index 0000000..cc2aa64
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/create_collection.js
@@ -0,0 +1,103 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.CreateCollectionOperation = void 0;
+const constants_1 = require("../cmap/wire_protocol/constants");
+const collection_1 = require("../collection");
+const error_1 = require("../error");
+const command_1 = require("./command");
+const indexes_1 = require("./indexes");
+const operation_1 = require("./operation");
+const ILLEGAL_COMMAND_FIELDS = new Set([
+    'w',
+    'wtimeout',
+    'timeoutMS',
+    'j',
+    'fsync',
+    'autoIndexId',
+    'pkFactory',
+    'raw',
+    'readPreference',
+    'session',
+    'readConcern',
+    'writeConcern',
+    'raw',
+    'fieldsAsRaw',
+    'useBigInt64',
+    'promoteLongs',
+    'promoteValues',
+    'promoteBuffers',
+    'bsonRegExp',
+    'serializeFunctions',
+    'ignoreUndefined',
+    'enableUtf8Validation'
+]);
+/* @internal */
+const INVALID_QE_VERSION = 'Driver support of Queryable Encryption is incompatible with server. Upgrade server to use Queryable Encryption.';
+/** @internal */
+class CreateCollectionOperation extends command_1.CommandOperation {
+    constructor(db, name, options = {}) {
+        super(db, options);
+        this.options = options;
+        this.db = db;
+        this.name = name;
+    }
+    get commandName() {
+        return 'create';
+    }
+    async execute(server, session, timeoutContext) {
+        const db = this.db;
+        const name = this.name;
+        const options = this.options;
+        const encryptedFields = options.encryptedFields ??
+            db.client.s.options.autoEncryption?.encryptedFieldsMap?.[`${db.databaseName}.${name}`];
+        if (encryptedFields) {
+            // Creating a QE collection required min server of 7.0.0
+            // TODO(NODE-5353): Get wire version information from connection.
+            if (!server.loadBalanced &&
+                server.description.maxWireVersion < constants_1.MIN_SUPPORTED_QE_WIRE_VERSION) {
+                throw new error_1.MongoCompatibilityError(`${INVALID_QE_VERSION} The minimum server version required is ${constants_1.MIN_SUPPORTED_QE_SERVER_VERSION}`);
+            }
+            // Create auxilliary collections for queryable encryption support.
+            const escCollection = encryptedFields.escCollection ?? `enxcol_.${name}.esc`;
+            const ecocCollection = encryptedFields.ecocCollection ?? `enxcol_.${name}.ecoc`;
+            for (const collectionName of [escCollection, ecocCollection]) {
+                const createOp = new CreateCollectionOperation(db, collectionName, {
+                    clusteredIndex: {
+                        key: { _id: 1 },
+                        unique: true
+                    }
+                });
+                await createOp.executeWithoutEncryptedFieldsCheck(server, session, timeoutContext);
+            }
+            if (!options.encryptedFields) {
+                this.options = { ...this.options, encryptedFields };
+            }
+        }
+        const coll = await this.executeWithoutEncryptedFieldsCheck(server, session, timeoutContext);
+        if (encryptedFields) {
+            // Create the required index for queryable encryption support.
+            const createIndexOp = indexes_1.CreateIndexesOperation.fromIndexSpecification(db, name, { __safeContent__: 1 }, {});
+            await createIndexOp.execute(server, session, timeoutContext);
+        }
+        return coll;
+    }
+    async executeWithoutEncryptedFieldsCheck(server, session, timeoutContext) {
+        const db = this.db;
+        const name = this.name;
+        const options = this.options;
+        const cmd = { create: name };
+        for (const n in options) {
+            if (options[n] != null &&
+                typeof options[n] !== 'function' &&
+                !ILLEGAL_COMMAND_FIELDS.has(n)) {
+                cmd[n] = options[n];
+            }
+        }
+        // otherwise just execute the command
+        await super.executeCommand(server, session, cmd, timeoutContext);
+        return new collection_1.Collection(db, name, options);
+    }
+}
+exports.CreateCollectionOperation = CreateCollectionOperation;
+(0, operation_1.defineAspects)(CreateCollectionOperation, [operation_1.Aspect.WRITE_OPERATION]);
+//# sourceMappingURL=create_collection.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/create_collection.js.map b/backend/node_modules/mongodb/lib/operations/create_collection.js.map
new file mode 100644
index 0000000..4172abc
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/create_collection.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"create_collection.js","sourceRoot":"","sources":["../../src/operations/create_collection.ts"],"names":[],"mappings":";;;AACA,+DAGyC;AACzC,8CAA2C;AAE3C,oCAAmD;AAKnD,uCAA2E;AAC3E,uCAAmD;AACnD,2CAAoD;AAEpD,MAAM,sBAAsB,GAAG,IAAI,GAAG,CAAC;IACrC,GAAG;IACH,UAAU;IACV,WAAW;IACX,GAAG;IACH,OAAO;IACP,aAAa;IACb,WAAW;IACX,KAAK;IACL,gBAAgB;IAChB,SAAS;IACT,aAAa;IACb,cAAc;IACd,KAAK;IACL,aAAa;IACb,aAAa;IACb,cAAc;IACd,eAAe;IACf,gBAAgB;IAChB,YAAY;IACZ,oBAAoB;IACpB,iBAAiB;IACjB,sBAAsB;CACvB,CAAC,CAAC;AAmEH,eAAe;AACf,MAAM,kBAAkB,GACtB,iHAAiH,CAAC;AAEpH,gBAAgB;AAChB,MAAa,yBAA0B,SAAQ,0BAA4B;IAKzE,YAAY,EAAM,EAAE,IAAY,EAAE,UAAmC,EAAE;QACrE,KAAK,CAAC,EAAE,EAAE,OAAO,CAAC,CAAC;QAEnB,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACvB,IAAI,CAAC,EAAE,GAAG,EAAE,CAAC;QACb,IAAI,CAAC,IAAI,GAAG,IAAI,CAAC;IACnB,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,QAAiB,CAAC;IAC3B,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,EAAE,GAAG,IAAI,CAAC,EAAE,CAAC;QACnB,MAAM,IAAI,GAAG,IAAI,CAAC,IAAI,CAAC;QACvB,MAAM,OAAO,GAAG,IAAI,CAAC,OAAO,CAAC;QAE7B,MAAM,eAAe,GACnB,OAAO,CAAC,eAAe;YACvB,EAAE,CAAC,MAAM,CAAC,CAAC,CAAC,OAAO,CAAC,cAAc,EAAE,kBAAkB,EAAE,CAAC,GAAG,EAAE,CAAC,YAAY,IAAI,IAAI,EAAE,CAAC,CAAC;QAEzF,IAAI,eAAe,EAAE,CAAC;YACpB,wDAAwD;YACxD,iEAAiE;YACjE,IACE,CAAC,MAAM,CAAC,YAAY;gBACpB,MAAM,CAAC,WAAW,CAAC,cAAc,GAAG,yCAA6B,EACjE,CAAC;gBACD,MAAM,IAAI,+BAAuB,CAC/B,GAAG,kBAAkB,2CAA2C,2CAA+B,EAAE,CAClG,CAAC;YACJ,CAAC;YACD,kEAAkE;YAClE,MAAM,aAAa,GAAG,eAAe,CAAC,aAAa,IAAI,WAAW,IAAI,MAAM,CAAC;YAC7E,MAAM,cAAc,GAAG,eAAe,CAAC,cAAc,IAAI,WAAW,IAAI,OAAO,CAAC;YAEhF,KAAK,MAAM,cAAc,IAAI,CAAC,aAAa,EAAE,cAAc,CAAC,EAAE,CAAC;gBAC7D,MAAM,QAAQ,GAAG,IAAI,yBAAyB,CAAC,EAAE,EAAE,cAAc,EAAE;oBACjE,cAAc,EAAE;wBACd,GAAG,EAAE,EAAE,GAAG,EAAE,CAAC,EAAE;wBACf,MAAM,EAAE,IAAI;qBACb;iBACF,CAAC,CAAC;gBACH,MAAM,QAAQ,CAAC,kCAAkC,CAAC,MAAM,EAAE,OAAO,EAAE,cAAc,CAAC,CAAC;YACrF,CAAC;YAED,IAAI,CAAC,OAAO,CAAC,eAAe,EAAE,CAAC;gBAC7B,IAAI,CAAC,OAAO,GAAG,EAAE,GAAG,IAAI,CAAC,OAAO,EAAE,eAAe,EAAE,CAAC;YACtD,CAAC;QACH,CAAC;QAED,MAAM,IAAI,GAAG,MAAM,IAAI,CAAC,kCAAkC,CAAC,MAAM,EAAE,OAAO,EAAE,cAAc,CAAC,CAAC;QAE5F,IAAI,eAAe,EAAE,CAAC;YACpB,8DAA8D;YAC9D,MAAM,aAAa,GAAG,gCAAsB,CAAC,sBAAsB,CACjE,EAAE,EACF,IAAI,EACJ,EAAE,eAAe,EAAE,CAAC,EAAE,EACtB,EAAE,CACH,CAAC;YACF,MAAM,aAAa,CAAC,OAAO,CAAC,MAAM,EAAE,OAAO,EAAE,cAAc,CAAC,CAAC;QAC/D,CAAC;QAED,OAAO,IAAI,CAAC;IACd,CAAC;IAEO,KAAK,CAAC,kCAAkC,CAC9C,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,EAAE,GAAG,IAAI,CAAC,EAAE,CAAC;QACnB,MAAM,IAAI,GAAG,IAAI,CAAC,IAAI,CAAC;QACvB,MAAM,OAAO,GAAG,IAAI,CAAC,OAAO,CAAC;QAE7B,MAAM,GAAG,GAAa,EAAE,MAAM,EAAE,IAAI,EAAE,CAAC;QACvC,KAAK,MAAM,CAAC,IAAI,OAAO,EAAE,CAAC;YACxB,IACG,OAAe,CAAC,CAAC,CAAC,IAAI,IAAI;gBAC3B,OAAQ,OAAe,CAAC,CAAC,CAAC,KAAK,UAAU;gBACzC,CAAC,sBAAsB,CAAC,GAAG,CAAC,CAAC,CAAC,EAC9B,CAAC;gBACD,GAAG,CAAC,CAAC,CAAC,GAAI,OAAe,CAAC,CAAC,CAAC,CAAC;YAC/B,CAAC;QACH,CAAC;QACD,qCAAqC;QACrC,MAAM,KAAK,CAAC,cAAc,CAAC,MAAM,EAAE,OAAO,EAAE,GAAG,EAAE,cAAc,CAAC,CAAC;QACjE,OAAO,IAAI,uBAAU,CAAC,EAAE,EAAE,IAAI,EAAE,OAAO,CAAC,CAAC;IAC3C,CAAC;CACF;AAnGD,8DAmGC;AAED,IAAA,yBAAa,EAAC,yBAAyB,EAAE,CAAC,kBAAM,CAAC,eAAe,CAAC,CAAC,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/delete.js b/backend/node_modules/mongodb/lib/operations/delete.js
new file mode 100644
index 0000000..793eaae
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/delete.js
@@ -0,0 +1,116 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.DeleteManyOperation = exports.DeleteOneOperation = exports.DeleteOperation = void 0;
+exports.makeDeleteStatement = makeDeleteStatement;
+const error_1 = require("../error");
+const command_1 = require("./command");
+const operation_1 = require("./operation");
+/** @internal */
+class DeleteOperation extends command_1.CommandOperation {
+    constructor(ns, statements, options) {
+        super(undefined, options);
+        this.options = options;
+        this.ns = ns;
+        this.statements = statements;
+    }
+    get commandName() {
+        return 'delete';
+    }
+    get canRetryWrite() {
+        if (super.canRetryWrite === false) {
+            return false;
+        }
+        return this.statements.every(op => (op.limit != null ? op.limit > 0 : true));
+    }
+    async execute(server, session, timeoutContext) {
+        const options = this.options ?? {};
+        const ordered = typeof options.ordered === 'boolean' ? options.ordered : true;
+        const command = {
+            delete: this.ns.collection,
+            deletes: this.statements,
+            ordered
+        };
+        if (options.let) {
+            command.let = options.let;
+        }
+        // we check for undefined specifically here to allow falsy values
+        // eslint-disable-next-line no-restricted-syntax
+        if (options.comment !== undefined) {
+            command.comment = options.comment;
+        }
+        const unacknowledgedWrite = this.writeConcern && this.writeConcern.w === 0;
+        if (unacknowledgedWrite) {
+            if (this.statements.find((o) => o.hint)) {
+                // TODO(NODE-3541): fix error for hint with unacknowledged writes
+                throw new error_1.MongoCompatibilityError(`hint is not supported with unacknowledged writes`);
+            }
+        }
+        const res = await super.executeCommand(server, session, command, timeoutContext);
+        return res;
+    }
+}
+exports.DeleteOperation = DeleteOperation;
+class DeleteOneOperation extends DeleteOperation {
+    constructor(collection, filter, options) {
+        super(collection.s.namespace, [makeDeleteStatement(filter, { ...options, limit: 1 })], options);
+    }
+    async execute(server, session, timeoutContext) {
+        const res = await super.execute(server, session, timeoutContext);
+        if (this.explain)
+            return res;
+        if (res.code)
+            throw new error_1.MongoServerError(res);
+        if (res.writeErrors)
+            throw new error_1.MongoServerError(res.writeErrors[0]);
+        return {
+            acknowledged: this.writeConcern?.w !== 0,
+            deletedCount: res.n
+        };
+    }
+}
+exports.DeleteOneOperation = DeleteOneOperation;
+class DeleteManyOperation extends DeleteOperation {
+    constructor(collection, filter, options) {
+        super(collection.s.namespace, [makeDeleteStatement(filter, options)], options);
+    }
+    async execute(server, session, timeoutContext) {
+        const res = await super.execute(server, session, timeoutContext);
+        if (this.explain)
+            return res;
+        if (res.code)
+            throw new error_1.MongoServerError(res);
+        if (res.writeErrors)
+            throw new error_1.MongoServerError(res.writeErrors[0]);
+        return {
+            acknowledged: this.writeConcern?.w !== 0,
+            deletedCount: res.n
+        };
+    }
+}
+exports.DeleteManyOperation = DeleteManyOperation;
+function makeDeleteStatement(filter, options) {
+    const op = {
+        q: filter,
+        limit: typeof options.limit === 'number' ? options.limit : 0
+    };
+    if (options.collation) {
+        op.collation = options.collation;
+    }
+    if (options.hint) {
+        op.hint = options.hint;
+    }
+    return op;
+}
+(0, operation_1.defineAspects)(DeleteOperation, [operation_1.Aspect.RETRYABLE, operation_1.Aspect.WRITE_OPERATION]);
+(0, operation_1.defineAspects)(DeleteOneOperation, [
+    operation_1.Aspect.RETRYABLE,
+    operation_1.Aspect.WRITE_OPERATION,
+    operation_1.Aspect.EXPLAINABLE,
+    operation_1.Aspect.SKIP_COLLATION
+]);
+(0, operation_1.defineAspects)(DeleteManyOperation, [
+    operation_1.Aspect.WRITE_OPERATION,
+    operation_1.Aspect.EXPLAINABLE,
+    operation_1.Aspect.SKIP_COLLATION
+]);
+//# sourceMappingURL=delete.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/delete.js.map b/backend/node_modules/mongodb/lib/operations/delete.js.map
new file mode 100644
index 0000000..46894c1
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/delete.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"delete.js","sourceRoot":"","sources":["../../src/operations/delete.ts"],"names":[],"mappings":";;;AAwJA,kDAkBC;AAxKD,oCAAqE;AAOrE,uCAAkG;AAClG,2CAA+D;AAkC/D,gBAAgB;AAChB,MAAa,eAAgB,SAAQ,0BAA8B;IAIjE,YAAY,EAAoB,EAAE,UAA6B,EAAE,OAAsB;QACrF,KAAK,CAAC,SAAS,EAAE,OAAO,CAAC,CAAC;QAC1B,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACvB,IAAI,CAAC,EAAE,GAAG,EAAE,CAAC;QACb,IAAI,CAAC,UAAU,GAAG,UAAU,CAAC;IAC/B,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,QAAiB,CAAC;IAC3B,CAAC;IAED,IAAa,aAAa;QACxB,IAAI,KAAK,CAAC,aAAa,KAAK,KAAK,EAAE,CAAC;YAClC,OAAO,KAAK,CAAC;QACf,CAAC;QAED,OAAO,IAAI,CAAC,UAAU,CAAC,KAAK,CAAC,EAAE,CAAC,EAAE,CAAC,CAAC,EAAE,CAAC,KAAK,IAAI,IAAI,CAAC,CAAC,CAAC,EAAE,CAAC,KAAK,GAAG,CAAC,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC;IAC/E,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,OAAO,GAAG,IAAI,CAAC,OAAO,IAAI,EAAE,CAAC;QACnC,MAAM,OAAO,GAAG,OAAO,OAAO,CAAC,OAAO,KAAK,SAAS,CAAC,CAAC,CAAC,OAAO,CAAC,OAAO,CAAC,CAAC,CAAC,IAAI,CAAC;QAC9E,MAAM,OAAO,GAAa;YACxB,MAAM,EAAE,IAAI,CAAC,EAAE,CAAC,UAAU;YAC1B,OAAO,EAAE,IAAI,CAAC,UAAU;YACxB,OAAO;SACR,CAAC;QAEF,IAAI,OAAO,CAAC,GAAG,EAAE,CAAC;YAChB,OAAO,CAAC,GAAG,GAAG,OAAO,CAAC,GAAG,CAAC;QAC5B,CAAC;QAED,iEAAiE;QACjE,gDAAgD;QAChD,IAAI,OAAO,CAAC,OAAO,KAAK,SAAS,EAAE,CAAC;YAClC,OAAO,CAAC,OAAO,GAAG,OAAO,CAAC,OAAO,CAAC;QACpC,CAAC;QAED,MAAM,mBAAmB,GAAG,IAAI,CAAC,YAAY,IAAI,IAAI,CAAC,YAAY,CAAC,CAAC,KAAK,CAAC,CAAC;QAC3E,IAAI,mBAAmB,EAAE,CAAC;YACxB,IAAI,IAAI,CAAC,UAAU,CAAC,IAAI,CAAC,CAAC,CAAW,EAAE,EAAE,CAAC,CAAC,CAAC,IAAI,CAAC,EAAE,CAAC;gBAClD,iEAAiE;gBACjE,MAAM,IAAI,+BAAuB,CAAC,kDAAkD,CAAC,CAAC;YACxF,CAAC;QACH,CAAC;QAED,MAAM,GAAG,GAAmB,MAAM,KAAK,CAAC,cAAc,CACpD,MAAM,EACN,OAAO,EACP,OAAO,EACP,cAAc,CACf,CAAC;QACF,OAAO,GAAG,CAAC;IACb,CAAC;CACF;AA9DD,0CA8DC;AAED,MAAa,kBAAmB,SAAQ,eAAe;IACrD,YAAY,UAAsB,EAAE,MAAgB,EAAE,OAAsB;QAC1E,KAAK,CAAC,UAAU,CAAC,CAAC,CAAC,SAAS,EAAE,CAAC,mBAAmB,CAAC,MAAM,EAAE,EAAE,GAAG,OAAO,EAAE,KAAK,EAAE,CAAC,EAAE,CAAC,CAAC,EAAE,OAAO,CAAC,CAAC;IAClG,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,GAAG,GAAmB,MAAM,KAAK,CAAC,OAAO,CAAC,MAAM,EAAE,OAAO,EAAE,cAAc,CAAC,CAAC;QACjF,IAAI,IAAI,CAAC,OAAO;YAAE,OAAO,GAAG,CAAC;QAC7B,IAAI,GAAG,CAAC,IAAI;YAAE,MAAM,IAAI,wBAAgB,CAAC,GAAG,CAAC,CAAC;QAC9C,IAAI,GAAG,CAAC,WAAW;YAAE,MAAM,IAAI,wBAAgB,CAAC,GAAG,CAAC,WAAW,CAAC,CAAC,CAAC,CAAC,CAAC;QAEpE,OAAO;YACL,YAAY,EAAE,IAAI,CAAC,YAAY,EAAE,CAAC,KAAK,CAAC;YACxC,YAAY,EAAE,GAAG,CAAC,CAAC;SACpB,CAAC;IACJ,CAAC;CACF;AApBD,gDAoBC;AACD,MAAa,mBAAoB,SAAQ,eAAe;IACtD,YAAY,UAAsB,EAAE,MAAgB,EAAE,OAAsB;QAC1E,KAAK,CAAC,UAAU,CAAC,CAAC,CAAC,SAAS,EAAE,CAAC,mBAAmB,CAAC,MAAM,EAAE,OAAO,CAAC,CAAC,EAAE,OAAO,CAAC,CAAC;IACjF,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,GAAG,GAAmB,MAAM,KAAK,CAAC,OAAO,CAAC,MAAM,EAAE,OAAO,EAAE,cAAc,CAAC,CAAC;QACjF,IAAI,IAAI,CAAC,OAAO;YAAE,OAAO,GAAG,CAAC;QAC7B,IAAI,GAAG,CAAC,IAAI;YAAE,MAAM,IAAI,wBAAgB,CAAC,GAAG,CAAC,CAAC;QAC9C,IAAI,GAAG,CAAC,WAAW;YAAE,MAAM,IAAI,wBAAgB,CAAC,GAAG,CAAC,WAAW,CAAC,CAAC,CAAC,CAAC,CAAC;QAEpE,OAAO;YACL,YAAY,EAAE,IAAI,CAAC,YAAY,EAAE,CAAC,KAAK,CAAC;YACxC,YAAY,EAAE,GAAG,CAAC,CAAC;SACpB,CAAC;IACJ,CAAC;CACF;AApBD,kDAoBC;AAED,SAAgB,mBAAmB,CACjC,MAAgB,EAChB,OAA2C;IAE3C,MAAM,EAAE,GAAoB;QAC1B,CAAC,EAAE,MAAM;QACT,KAAK,EAAE,OAAO,OAAO,CAAC,KAAK,KAAK,QAAQ,CAAC,CAAC,CAAC,OAAO,CAAC,KAAK,CAAC,CAAC,CAAC,CAAC;KAC7D,CAAC;IAEF,IAAI,OAAO,CAAC,SAAS,EAAE,CAAC;QACtB,EAAE,CAAC,SAAS,GAAG,OAAO,CAAC,SAAS,CAAC;IACnC,CAAC;IAED,IAAI,OAAO,CAAC,IAAI,EAAE,CAAC;QACjB,EAAE,CAAC,IAAI,GAAG,OAAO,CAAC,IAAI,CAAC;IACzB,CAAC;IAED,OAAO,EAAE,CAAC;AACZ,CAAC;AAED,IAAA,yBAAa,EAAC,eAAe,EAAE,CAAC,kBAAM,CAAC,SAAS,EAAE,kBAAM,CAAC,eAAe,CAAC,CAAC,CAAC;AAC3E,IAAA,yBAAa,EAAC,kBAAkB,EAAE;IAChC,kBAAM,CAAC,SAAS;IAChB,kBAAM,CAAC,eAAe;IACtB,kBAAM,CAAC,WAAW;IAClB,kBAAM,CAAC,cAAc;CACtB,CAAC,CAAC;AACH,IAAA,yBAAa,EAAC,mBAAmB,EAAE;IACjC,kBAAM,CAAC,eAAe;IACtB,kBAAM,CAAC,WAAW;IAClB,kBAAM,CAAC,cAAc;CACtB,CAAC,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/distinct.js b/backend/node_modules/mongodb/lib/operations/distinct.js
new file mode 100644
index 0000000..a6732dd
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/distinct.js
@@ -0,0 +1,60 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.DistinctOperation = void 0;
+const utils_1 = require("../utils");
+const command_1 = require("./command");
+const operation_1 = require("./operation");
+/**
+ * Return a list of distinct values for the given key across a collection.
+ * @internal
+ */
+class DistinctOperation extends command_1.CommandOperation {
+    /**
+     * Construct a Distinct operation.
+     *
+     * @param collection - Collection instance.
+     * @param key - Field of the document to find distinct values for.
+     * @param query - The query for filtering the set of documents to which we apply the distinct filter.
+     * @param options - Optional settings. See Collection.prototype.distinct for a list of options.
+     */
+    constructor(collection, key, query, options) {
+        super(collection, options);
+        this.options = options ?? {};
+        this.collection = collection;
+        this.key = key;
+        this.query = query;
+    }
+    get commandName() {
+        return 'distinct';
+    }
+    async execute(server, session, timeoutContext) {
+        const coll = this.collection;
+        const key = this.key;
+        const query = this.query;
+        const options = this.options;
+        // Distinct command
+        const cmd = {
+            distinct: coll.collectionName,
+            key: key,
+            query: query
+        };
+        // Add maxTimeMS if defined
+        if (typeof options.maxTimeMS === 'number') {
+            cmd.maxTimeMS = options.maxTimeMS;
+        }
+        // we check for undefined specifically here to allow falsy values
+        // eslint-disable-next-line no-restricted-syntax
+        if (typeof options.comment !== 'undefined') {
+            cmd.comment = options.comment;
+        }
+        // Do we have a readConcern specified
+        (0, utils_1.decorateWithReadConcern)(cmd, coll, options);
+        // Have we specified collation
+        (0, utils_1.decorateWithCollation)(cmd, coll, options);
+        const result = await super.executeCommand(server, session, cmd, timeoutContext);
+        return this.explain ? result : result.values;
+    }
+}
+exports.DistinctOperation = DistinctOperation;
+(0, operation_1.defineAspects)(DistinctOperation, [operation_1.Aspect.READ_OPERATION, operation_1.Aspect.RETRYABLE, operation_1.Aspect.EXPLAINABLE]);
+//# sourceMappingURL=distinct.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/distinct.js.map b/backend/node_modules/mongodb/lib/operations/distinct.js.map
new file mode 100644
index 0000000..1b5f1e2
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/distinct.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"distinct.js","sourceRoot":"","sources":["../../src/operations/distinct.ts"],"names":[],"mappings":";;;AAKA,oCAA0E;AAC1E,uCAA2E;AAC3E,2CAAoD;AAKpD;;;GAGG;AACH,MAAa,iBAAkB,SAAQ,0BAAuB;IAQ5D;;;;;;;OAOG;IACH,YAAY,UAAsB,EAAE,GAAW,EAAE,KAAe,EAAE,OAAyB;QACzF,KAAK,CAAC,UAAU,EAAE,OAAO,CAAC,CAAC;QAE3B,IAAI,CAAC,OAAO,GAAG,OAAO,IAAI,EAAE,CAAC;QAC7B,IAAI,CAAC,UAAU,GAAG,UAAU,CAAC;QAC7B,IAAI,CAAC,GAAG,GAAG,GAAG,CAAC;QACf,IAAI,CAAC,KAAK,GAAG,KAAK,CAAC;IACrB,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,UAAmB,CAAC;IAC7B,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,IAAI,GAAG,IAAI,CAAC,UAAU,CAAC;QAC7B,MAAM,GAAG,GAAG,IAAI,CAAC,GAAG,CAAC;QACrB,MAAM,KAAK,GAAG,IAAI,CAAC,KAAK,CAAC;QACzB,MAAM,OAAO,GAAG,IAAI,CAAC,OAAO,CAAC;QAE7B,mBAAmB;QACnB,MAAM,GAAG,GAAa;YACpB,QAAQ,EAAE,IAAI,CAAC,cAAc;YAC7B,GAAG,EAAE,GAAG;YACR,KAAK,EAAE,KAAK;SACb,CAAC;QAEF,2BAA2B;QAC3B,IAAI,OAAO,OAAO,CAAC,SAAS,KAAK,QAAQ,EAAE,CAAC;YAC1C,GAAG,CAAC,SAAS,GAAG,OAAO,CAAC,SAAS,CAAC;QACpC,CAAC;QAED,iEAAiE;QACjE,gDAAgD;QAChD,IAAI,OAAO,OAAO,CAAC,OAAO,KAAK,WAAW,EAAE,CAAC;YAC3C,GAAG,CAAC,OAAO,GAAG,OAAO,CAAC,OAAO,CAAC;QAChC,CAAC;QAED,qCAAqC;QACrC,IAAA,+BAAuB,EAAC,GAAG,EAAE,IAAI,EAAE,OAAO,CAAC,CAAC;QAE5C,8BAA8B;QAC9B,IAAA,6BAAqB,EAAC,GAAG,EAAE,IAAI,EAAE,OAAO,CAAC,CAAC;QAE1C,MAAM,MAAM,GAAG,MAAM,KAAK,CAAC,cAAc,CAAC,MAAM,EAAE,OAAO,EAAE,GAAG,EAAE,cAAc,CAAC,CAAC;QAEhF,OAAO,IAAI,CAAC,OAAO,CAAC,CAAC,CAAC,MAAM,CAAC,CAAC,CAAC,MAAM,CAAC,MAAM,CAAC;IAC/C,CAAC;CACF;AAnED,8CAmEC;AAED,IAAA,yBAAa,EAAC,iBAAiB,EAAE,CAAC,kBAAM,CAAC,cAAc,EAAE,kBAAM,CAAC,SAAS,EAAE,kBAAM,CAAC,WAAW,CAAC,CAAC,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/drop.js b/backend/node_modules/mongodb/lib/operations/drop.js
new file mode 100644
index 0000000..5051980
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/drop.js
@@ -0,0 +1,76 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.DropDatabaseOperation = exports.DropCollectionOperation = void 0;
+const error_1 = require("../error");
+const command_1 = require("./command");
+const operation_1 = require("./operation");
+/** @internal */
+class DropCollectionOperation extends command_1.CommandOperation {
+    constructor(db, name, options = {}) {
+        super(db, options);
+        this.db = db;
+        this.options = options;
+        this.name = name;
+    }
+    get commandName() {
+        return 'drop';
+    }
+    async execute(server, session, timeoutContext) {
+        const db = this.db;
+        const options = this.options;
+        const name = this.name;
+        const encryptedFieldsMap = db.client.s.options.autoEncryption?.encryptedFieldsMap;
+        let encryptedFields = options.encryptedFields ?? encryptedFieldsMap?.[`${db.databaseName}.${name}`];
+        if (!encryptedFields && encryptedFieldsMap) {
+            // If the MongoClient was configured with an encryptedFieldsMap,
+            // and no encryptedFields config was available in it or explicitly
+            // passed as an argument, the spec tells us to look one up using
+            // listCollections().
+            const listCollectionsResult = await db
+                .listCollections({ name }, { nameOnly: false })
+                .toArray();
+            encryptedFields = listCollectionsResult?.[0]?.options?.encryptedFields;
+        }
+        if (encryptedFields) {
+            const escCollection = encryptedFields.escCollection || `enxcol_.${name}.esc`;
+            const ecocCollection = encryptedFields.ecocCollection || `enxcol_.${name}.ecoc`;
+            for (const collectionName of [escCollection, ecocCollection]) {
+                // Drop auxilliary collections, ignoring potential NamespaceNotFound errors.
+                const dropOp = new DropCollectionOperation(db, collectionName);
+                try {
+                    await dropOp.executeWithoutEncryptedFieldsCheck(server, session, timeoutContext);
+                }
+                catch (err) {
+                    if (!(err instanceof error_1.MongoServerError) ||
+                        err.code !== error_1.MONGODB_ERROR_CODES.NamespaceNotFound) {
+                        throw err;
+                    }
+                }
+            }
+        }
+        return await this.executeWithoutEncryptedFieldsCheck(server, session, timeoutContext);
+    }
+    async executeWithoutEncryptedFieldsCheck(server, session, timeoutContext) {
+        await super.executeCommand(server, session, { drop: this.name }, timeoutContext);
+        return true;
+    }
+}
+exports.DropCollectionOperation = DropCollectionOperation;
+/** @internal */
+class DropDatabaseOperation extends command_1.CommandOperation {
+    constructor(db, options) {
+        super(db, options);
+        this.options = options;
+    }
+    get commandName() {
+        return 'dropDatabase';
+    }
+    async execute(server, session, timeoutContext) {
+        await super.executeCommand(server, session, { dropDatabase: 1 }, timeoutContext);
+        return true;
+    }
+}
+exports.DropDatabaseOperation = DropDatabaseOperation;
+(0, operation_1.defineAspects)(DropCollectionOperation, [operation_1.Aspect.WRITE_OPERATION]);
+(0, operation_1.defineAspects)(DropDatabaseOperation, [operation_1.Aspect.WRITE_OPERATION]);
+//# sourceMappingURL=drop.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/drop.js.map b/backend/node_modules/mongodb/lib/operations/drop.js.map
new file mode 100644
index 0000000..f21dde7
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/drop.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/estimated_document_count.js b/backend/node_modules/mongodb/lib/operations/estimated_document_count.js
new file mode 100644
index 0000000..d0635b0
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/estimated_document_count.js
@@ -0,0 +1,36 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.EstimatedDocumentCountOperation = void 0;
+const command_1 = require("./command");
+const operation_1 = require("./operation");
+/** @internal */
+class EstimatedDocumentCountOperation extends command_1.CommandOperation {
+    constructor(collection, options = {}) {
+        super(collection, options);
+        this.options = options;
+        this.collectionName = collection.collectionName;
+    }
+    get commandName() {
+        return 'count';
+    }
+    async execute(server, session, timeoutContext) {
+        const cmd = { count: this.collectionName };
+        if (typeof this.options.maxTimeMS === 'number') {
+            cmd.maxTimeMS = this.options.maxTimeMS;
+        }
+        // we check for undefined specifically here to allow falsy values
+        // eslint-disable-next-line no-restricted-syntax
+        if (this.options.comment !== undefined) {
+            cmd.comment = this.options.comment;
+        }
+        const response = await super.executeCommand(server, session, cmd, timeoutContext);
+        return response?.n || 0;
+    }
+}
+exports.EstimatedDocumentCountOperation = EstimatedDocumentCountOperation;
+(0, operation_1.defineAspects)(EstimatedDocumentCountOperation, [
+    operation_1.Aspect.READ_OPERATION,
+    operation_1.Aspect.RETRYABLE,
+    operation_1.Aspect.CURSOR_CREATING
+]);
+//# sourceMappingURL=estimated_document_count.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/estimated_document_count.js.map b/backend/node_modules/mongodb/lib/operations/estimated_document_count.js.map
new file mode 100644
index 0000000..df36169
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/estimated_document_count.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"estimated_document_count.js","sourceRoot":"","sources":["../../src/operations/estimated_document_count.ts"],"names":[],"mappings":";;;AAKA,uCAA2E;AAC3E,2CAAoD;AAYpD,gBAAgB;AAChB,MAAa,+BAAgC,SAAQ,0BAAwB;IAI3E,YAAY,UAAsB,EAAE,UAAyC,EAAE;QAC7E,KAAK,CAAC,UAAU,EAAE,OAAO,CAAC,CAAC;QAC3B,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACvB,IAAI,CAAC,cAAc,GAAG,UAAU,CAAC,cAAc,CAAC;IAClD,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,OAAgB,CAAC;IAC1B,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,GAAG,GAAa,EAAE,KAAK,EAAE,IAAI,CAAC,cAAc,EAAE,CAAC;QAErD,IAAI,OAAO,IAAI,CAAC,OAAO,CAAC,SAAS,KAAK,QAAQ,EAAE,CAAC;YAC/C,GAAG,CAAC,SAAS,GAAG,IAAI,CAAC,OAAO,CAAC,SAAS,CAAC;QACzC,CAAC;QAED,iEAAiE;QACjE,gDAAgD;QAChD,IAAI,IAAI,CAAC,OAAO,CAAC,OAAO,KAAK,SAAS,EAAE,CAAC;YACvC,GAAG,CAAC,OAAO,GAAG,IAAI,CAAC,OAAO,CAAC,OAAO,CAAC;QACrC,CAAC;QAED,MAAM,QAAQ,GAAG,MAAM,KAAK,CAAC,cAAc,CAAC,MAAM,EAAE,OAAO,EAAE,GAAG,EAAE,cAAc,CAAC,CAAC;QAElF,OAAO,QAAQ,EAAE,CAAC,IAAI,CAAC,CAAC;IAC1B,CAAC;CACF;AAnCD,0EAmCC;AAED,IAAA,yBAAa,EAAC,+BAA+B,EAAE;IAC7C,kBAAM,CAAC,cAAc;IACrB,kBAAM,CAAC,SAAS;IAChB,kBAAM,CAAC,eAAe;CACvB,CAAC,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/execute_operation.js b/backend/node_modules/mongodb/lib/operations/execute_operation.js
new file mode 100644
index 0000000..231c540
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/execute_operation.js
@@ -0,0 +1,221 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.executeOperation = executeOperation;
+const error_1 = require("../error");
+const read_preference_1 = require("../read_preference");
+const server_selection_1 = require("../sdam/server_selection");
+const timeout_1 = require("../timeout");
+const utils_1 = require("../utils");
+const operation_1 = require("./operation");
+const MMAPv1_RETRY_WRITES_ERROR_CODE = error_1.MONGODB_ERROR_CODES.IllegalOperation;
+const MMAPv1_RETRY_WRITES_ERROR_MESSAGE = 'This MongoDB deployment does not support retryable writes. Please add retryWrites=false to your connection string.';
+/**
+ * Executes the given operation with provided arguments.
+ * @internal
+ *
+ * @remarks
+ * Allows for a single point of entry to provide features such as implicit sessions, which
+ * are required by the Driver Sessions specification in the event that a ClientSession is
+ * not provided.
+ *
+ * The expectation is that this function:
+ * - Connects the MongoClient if it has not already been connected, see {@link autoConnect}
+ * - Creates a session if none is provided and cleans up the session it creates
+ * - Tries an operation and retries under certain conditions, see {@link tryOperation}
+ *
+ * @typeParam T - The operation's type
+ * @typeParam TResult - The type of the operation's result, calculated from T
+ *
+ * @param client - The MongoClient to execute this operation with
+ * @param operation - The operation to execute
+ */
+async function executeOperation(client, operation, timeoutContext) {
+    if (!(operation instanceof operation_1.AbstractOperation)) {
+        // TODO(NODE-3483): Extend MongoRuntimeError
+        throw new error_1.MongoRuntimeError('This method requires a valid operation instance');
+    }
+    const topology = await autoConnect(client);
+    // The driver sessions spec mandates that we implicitly create sessions for operations
+    // that are not explicitly provided with a session.
+    let session = operation.session;
+    let owner;
+    if (session == null) {
+        owner = Symbol();
+        session = client.startSession({ owner, explicit: false });
+    }
+    else if (session.hasEnded) {
+        throw new error_1.MongoExpiredSessionError('Use of expired sessions is not permitted');
+    }
+    else if (session.snapshotEnabled && !topology.capabilities.supportsSnapshotReads) {
+        throw new error_1.MongoCompatibilityError('Snapshot reads require MongoDB 5.0 or later');
+    }
+    else if (session.client !== client) {
+        throw new error_1.MongoInvalidArgumentError('ClientSession must be from the same MongoClient');
+    }
+    const readPreference = operation.readPreference ?? read_preference_1.ReadPreference.primary;
+    const inTransaction = !!session?.inTransaction();
+    const hasReadAspect = operation.hasAspect(operation_1.Aspect.READ_OPERATION);
+    if (inTransaction &&
+        !readPreference.equals(read_preference_1.ReadPreference.primary) &&
+        (hasReadAspect || operation.commandName === 'runCommand')) {
+        throw new error_1.MongoTransactionError(`Read preference in a transaction must be primary, not: ${readPreference.mode}`);
+    }
+    if (session?.isPinned && session.transaction.isCommitted && !operation.bypassPinningCheck) {
+        session.unpin();
+    }
+    timeoutContext ??= timeout_1.TimeoutContext.create({
+        session,
+        serverSelectionTimeoutMS: client.s.options.serverSelectionTimeoutMS,
+        waitQueueTimeoutMS: client.s.options.waitQueueTimeoutMS,
+        timeoutMS: operation.options.timeoutMS
+    });
+    try {
+        return await tryOperation(operation, {
+            topology,
+            timeoutContext,
+            session,
+            readPreference
+        });
+    }
+    finally {
+        if (session?.owner != null && session.owner === owner) {
+            await session.endSession();
+        }
+    }
+}
+/**
+ * Connects a client if it has not yet been connected
+ * @internal
+ */
+async function autoConnect(client) {
+    if (client.topology == null) {
+        if (client.s.hasBeenClosed) {
+            throw new error_1.MongoNotConnectedError('Client must be connected before running operations');
+        }
+        client.s.options[Symbol.for('@@mdb.skipPingOnConnect')] = true;
+        try {
+            await client.connect();
+            if (client.topology == null) {
+                throw new error_1.MongoRuntimeError('client.connect did not create a topology but also did not throw');
+            }
+            return client.topology;
+        }
+        finally {
+            delete client.s.options[Symbol.for('@@mdb.skipPingOnConnect')];
+        }
+    }
+    return client.topology;
+}
+/**
+ * Executes an operation and retries as appropriate
+ * @internal
+ *
+ * @remarks
+ * Implements behaviour described in [Retryable Reads](https://github.com/mongodb/specifications/blob/master/source/retryable-reads/retryable-reads.md) and [Retryable
+ * Writes](https://github.com/mongodb/specifications/blob/master/source/retryable-writes/retryable-writes.md) specification
+ *
+ * This function:
+ * - performs initial server selection
+ * - attempts to execute an operation
+ * - retries the operation if it meets the criteria for a retryable read or a retryable write
+ *
+ * @typeParam T - The operation's type
+ * @typeParam TResult - The type of the operation's result, calculated from T
+ *
+ * @param operation - The operation to execute
+ * */
+async function tryOperation(operation, { topology, timeoutContext, session, readPreference }) {
+    let selector;
+    if (operation.hasAspect(operation_1.Aspect.MUST_SELECT_SAME_SERVER)) {
+        // GetMore and KillCursor operations must always select the same server, but run through
+        // server selection to potentially force monitor checks if the server is
+        // in an unknown state.
+        selector = (0, server_selection_1.sameServerSelector)(operation.server?.description);
+    }
+    else if (operation.trySecondaryWrite) {
+        // If operation should try to write to secondary use the custom server selector
+        // otherwise provide the read preference.
+        selector = (0, server_selection_1.secondaryWritableServerSelector)(topology.commonWireVersion, readPreference);
+    }
+    else {
+        selector = readPreference;
+    }
+    let server = await topology.selectServer(selector, {
+        session,
+        operationName: operation.commandName,
+        timeoutContext
+    });
+    const hasReadAspect = operation.hasAspect(operation_1.Aspect.READ_OPERATION);
+    const hasWriteAspect = operation.hasAspect(operation_1.Aspect.WRITE_OPERATION);
+    const inTransaction = session?.inTransaction() ?? false;
+    const willRetryRead = topology.s.options.retryReads && !inTransaction && operation.canRetryRead;
+    const willRetryWrite = topology.s.options.retryWrites &&
+        !inTransaction &&
+        (0, utils_1.supportsRetryableWrites)(server) &&
+        operation.canRetryWrite;
+    const willRetry = operation.hasAspect(operation_1.Aspect.RETRYABLE) &&
+        session != null &&
+        ((hasReadAspect && willRetryRead) || (hasWriteAspect && willRetryWrite));
+    if (hasWriteAspect && willRetryWrite && session != null) {
+        operation.options.willRetryWrite = true;
+        session.incrementTransactionNumber();
+    }
+    const maxTries = willRetry ? (timeoutContext.csotEnabled() ? Infinity : 2) : 1;
+    let previousOperationError;
+    let previousServer;
+    for (let tries = 0; tries < maxTries; tries++) {
+        if (previousOperationError) {
+            if (hasWriteAspect && previousOperationError.code === MMAPv1_RETRY_WRITES_ERROR_CODE) {
+                throw new error_1.MongoServerError({
+                    message: MMAPv1_RETRY_WRITES_ERROR_MESSAGE,
+                    errmsg: MMAPv1_RETRY_WRITES_ERROR_MESSAGE,
+                    originalError: previousOperationError
+                });
+            }
+            if (operation.hasAspect(operation_1.Aspect.COMMAND_BATCHING) && !operation.canRetryWrite) {
+                throw previousOperationError;
+            }
+            if (hasWriteAspect && !(0, error_1.isRetryableWriteError)(previousOperationError))
+                throw previousOperationError;
+            if (hasReadAspect && !(0, error_1.isRetryableReadError)(previousOperationError))
+                throw previousOperationError;
+            if (previousOperationError instanceof error_1.MongoNetworkError &&
+                operation.hasAspect(operation_1.Aspect.CURSOR_CREATING) &&
+                session != null &&
+                session.isPinned &&
+                !session.inTransaction()) {
+                session.unpin({ force: true, forceClear: true });
+            }
+            server = await topology.selectServer(selector, {
+                session,
+                operationName: operation.commandName,
+                previousServer
+            });
+            if (hasWriteAspect && !(0, utils_1.supportsRetryableWrites)(server)) {
+                throw new error_1.MongoUnexpectedServerResponseError('Selected server does not support retryable writes');
+            }
+        }
+        try {
+            // If tries > 0 and we are command batching we need to reset the batch.
+            if (tries > 0 && operation.hasAspect(operation_1.Aspect.COMMAND_BATCHING)) {
+                operation.resetBatch();
+            }
+            return await operation.execute(server, session, timeoutContext);
+        }
+        catch (operationError) {
+            if (!(operationError instanceof error_1.MongoError))
+                throw operationError;
+            if (previousOperationError != null &&
+                operationError.hasErrorLabel(error_1.MongoErrorLabel.NoWritesPerformed)) {
+                throw previousOperationError;
+            }
+            previousServer = server.description;
+            previousOperationError = operationError;
+            // Reset timeouts
+            timeoutContext.clear();
+        }
+    }
+    throw (previousOperationError ??
+        new error_1.MongoRuntimeError('Tried to propagate retryability error, but no error was found.'));
+}
+//# sourceMappingURL=execute_operation.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/execute_operation.js.map b/backend/node_modules/mongodb/lib/operations/execute_operation.js.map
new file mode 100644
index 0000000..872780d
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/execute_operation.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/find.js b/backend/node_modules/mongodb/lib/operations/find.js
new file mode 100644
index 0000000..5027471
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/find.js
@@ -0,0 +1,156 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.FindOperation = void 0;
+const responses_1 = require("../cmap/wire_protocol/responses");
+const error_1 = require("../error");
+const explain_1 = require("../explain");
+const read_concern_1 = require("../read_concern");
+const sort_1 = require("../sort");
+const utils_1 = require("../utils");
+const command_1 = require("./command");
+const operation_1 = require("./operation");
+/** @internal */
+class FindOperation extends command_1.CommandOperation {
+    constructor(ns, filter = {}, options = {}) {
+        super(undefined, options);
+        this.options = { ...options };
+        delete this.options.writeConcern;
+        this.ns = ns;
+        if (typeof filter !== 'object' || Array.isArray(filter)) {
+            throw new error_1.MongoInvalidArgumentError('Query filter must be a plain object or ObjectId');
+        }
+        // special case passing in an ObjectId as a filter
+        this.filter = filter != null && filter._bsontype === 'ObjectId' ? { _id: filter } : filter;
+    }
+    get commandName() {
+        return 'find';
+    }
+    async execute(server, session, timeoutContext) {
+        this.server = server;
+        const options = this.options;
+        let findCommand = makeFindCommand(this.ns, this.filter, options);
+        if (this.explain) {
+            (0, explain_1.validateExplainTimeoutOptions)(this.options, this.explain);
+            findCommand = (0, explain_1.decorateWithExplain)(findCommand, this.explain);
+        }
+        return await server.command(this.ns, findCommand, {
+            ...this.options,
+            ...this.bsonOptions,
+            documentsReturnedIn: 'firstBatch',
+            session,
+            timeoutContext
+        }, this.explain ? responses_1.ExplainedCursorResponse : responses_1.CursorResponse);
+    }
+}
+exports.FindOperation = FindOperation;
+function makeFindCommand(ns, filter, options) {
+    const findCommand = {
+        find: ns.collection,
+        filter
+    };
+    if (options.sort) {
+        findCommand.sort = (0, sort_1.formatSort)(options.sort);
+    }
+    if (options.projection) {
+        let projection = options.projection;
+        if (projection && Array.isArray(projection)) {
+            projection = projection.length
+                ? projection.reduce((result, field) => {
+                    result[field] = 1;
+                    return result;
+                }, {})
+                : { _id: 1 };
+        }
+        findCommand.projection = projection;
+    }
+    if (options.hint) {
+        findCommand.hint = (0, utils_1.normalizeHintField)(options.hint);
+    }
+    if (typeof options.skip === 'number') {
+        findCommand.skip = options.skip;
+    }
+    if (typeof options.limit === 'number') {
+        if (options.limit < 0) {
+            findCommand.limit = -options.limit;
+            findCommand.singleBatch = true;
+        }
+        else {
+            findCommand.limit = options.limit;
+        }
+    }
+    if (typeof options.batchSize === 'number') {
+        if (options.batchSize < 0) {
+            if (options.limit &&
+                options.limit !== 0 &&
+                Math.abs(options.batchSize) < Math.abs(options.limit)) {
+                findCommand.limit = -options.batchSize;
+            }
+            findCommand.singleBatch = true;
+        }
+        else {
+            findCommand.batchSize = options.batchSize;
+        }
+    }
+    if (typeof options.singleBatch === 'boolean') {
+        findCommand.singleBatch = options.singleBatch;
+    }
+    // we check for undefined specifically here to allow falsy values
+    // eslint-disable-next-line no-restricted-syntax
+    if (options.comment !== undefined) {
+        findCommand.comment = options.comment;
+    }
+    if (typeof options.maxTimeMS === 'number') {
+        findCommand.maxTimeMS = options.maxTimeMS;
+    }
+    const readConcern = read_concern_1.ReadConcern.fromOptions(options);
+    if (readConcern) {
+        findCommand.readConcern = readConcern.toJSON();
+    }
+    if (options.max) {
+        findCommand.max = options.max;
+    }
+    if (options.min) {
+        findCommand.min = options.min;
+    }
+    if (typeof options.returnKey === 'boolean') {
+        findCommand.returnKey = options.returnKey;
+    }
+    if (typeof options.showRecordId === 'boolean') {
+        findCommand.showRecordId = options.showRecordId;
+    }
+    if (typeof options.tailable === 'boolean') {
+        findCommand.tailable = options.tailable;
+    }
+    if (typeof options.oplogReplay === 'boolean') {
+        findCommand.oplogReplay = options.oplogReplay;
+    }
+    if (typeof options.timeout === 'boolean') {
+        findCommand.noCursorTimeout = !options.timeout;
+    }
+    else if (typeof options.noCursorTimeout === 'boolean') {
+        findCommand.noCursorTimeout = options.noCursorTimeout;
+    }
+    if (typeof options.awaitData === 'boolean') {
+        findCommand.awaitData = options.awaitData;
+    }
+    if (typeof options.allowPartialResults === 'boolean') {
+        findCommand.allowPartialResults = options.allowPartialResults;
+    }
+    if (options.collation) {
+        findCommand.collation = options.collation;
+    }
+    if (typeof options.allowDiskUse === 'boolean') {
+        findCommand.allowDiskUse = options.allowDiskUse;
+    }
+    if (options.let) {
+        findCommand.let = options.let;
+    }
+    return findCommand;
+}
+(0, operation_1.defineAspects)(FindOperation, [
+    operation_1.Aspect.READ_OPERATION,
+    operation_1.Aspect.RETRYABLE,
+    operation_1.Aspect.EXPLAINABLE,
+    operation_1.Aspect.CURSOR_CREATING
+]);
+//# sourceMappingURL=find.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/find.js.map b/backend/node_modules/mongodb/lib/operations/find.js.map
new file mode 100644
index 0000000..c8707df
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/find.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/find_and_modify.js b/backend/node_modules/mongodb/lib/operations/find_and_modify.js
new file mode 100644
index 0000000..f2ca8b1
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/find_and_modify.js
@@ -0,0 +1,146 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.FindOneAndUpdateOperation = exports.FindOneAndReplaceOperation = exports.FindOneAndDeleteOperation = exports.FindAndModifyOperation = exports.ReturnDocument = void 0;
+const error_1 = require("../error");
+const read_preference_1 = require("../read_preference");
+const sort_1 = require("../sort");
+const utils_1 = require("../utils");
+const command_1 = require("./command");
+const operation_1 = require("./operation");
+/** @public */
+exports.ReturnDocument = Object.freeze({
+    BEFORE: 'before',
+    AFTER: 'after'
+});
+function configureFindAndModifyCmdBaseUpdateOpts(cmdBase, options) {
+    cmdBase.new = options.returnDocument === exports.ReturnDocument.AFTER;
+    cmdBase.upsert = options.upsert === true;
+    if (options.bypassDocumentValidation === true) {
+        cmdBase.bypassDocumentValidation = options.bypassDocumentValidation;
+    }
+    return cmdBase;
+}
+/** @internal */
+class FindAndModifyOperation extends command_1.CommandOperation {
+    constructor(collection, query, options) {
+        super(collection, options);
+        this.options = options ?? {};
+        this.cmdBase = {
+            remove: false,
+            new: false,
+            upsert: false
+        };
+        options.includeResultMetadata ??= false;
+        const sort = (0, sort_1.formatSort)(options.sort);
+        if (sort) {
+            this.cmdBase.sort = sort;
+        }
+        if (options.projection) {
+            this.cmdBase.fields = options.projection;
+        }
+        if (options.maxTimeMS) {
+            this.cmdBase.maxTimeMS = options.maxTimeMS;
+        }
+        // Decorate the findAndModify command with the write Concern
+        if (options.writeConcern) {
+            this.cmdBase.writeConcern = options.writeConcern;
+        }
+        if (options.let) {
+            this.cmdBase.let = options.let;
+        }
+        // we check for undefined specifically here to allow falsy values
+        // eslint-disable-next-line no-restricted-syntax
+        if (options.comment !== undefined) {
+            this.cmdBase.comment = options.comment;
+        }
+        // force primary read preference
+        this.readPreference = read_preference_1.ReadPreference.primary;
+        this.collection = collection;
+        this.query = query;
+    }
+    get commandName() {
+        return 'findAndModify';
+    }
+    async execute(server, session, timeoutContext) {
+        const coll = this.collection;
+        const query = this.query;
+        const options = { ...this.options, ...this.bsonOptions };
+        // Create findAndModify command object
+        const cmd = {
+            findAndModify: coll.collectionName,
+            query: query,
+            ...this.cmdBase
+        };
+        (0, utils_1.decorateWithCollation)(cmd, coll, options);
+        if (options.hint) {
+            // TODO: once this method becomes a CommandOperation we will have the server
+            // in place to check.
+            const unacknowledgedWrite = this.writeConcern?.w === 0;
+            if (unacknowledgedWrite || (0, utils_1.maxWireVersion)(server) < 8) {
+                throw new error_1.MongoCompatibilityError('The current topology does not support a hint on findAndModify commands');
+            }
+            cmd.hint = options.hint;
+        }
+        // Execute the command
+        const result = await super.executeCommand(server, session, cmd, timeoutContext);
+        return options.includeResultMetadata ? result : (result.value ?? null);
+    }
+}
+exports.FindAndModifyOperation = FindAndModifyOperation;
+/** @internal */
+class FindOneAndDeleteOperation extends FindAndModifyOperation {
+    constructor(collection, filter, options) {
+        // Basic validation
+        if (filter == null || typeof filter !== 'object') {
+            throw new error_1.MongoInvalidArgumentError('Argument "filter" must be an object');
+        }
+        super(collection, filter, options);
+        this.cmdBase.remove = true;
+    }
+}
+exports.FindOneAndDeleteOperation = FindOneAndDeleteOperation;
+/** @internal */
+class FindOneAndReplaceOperation extends FindAndModifyOperation {
+    constructor(collection, filter, replacement, options) {
+        if (filter == null || typeof filter !== 'object') {
+            throw new error_1.MongoInvalidArgumentError('Argument "filter" must be an object');
+        }
+        if (replacement == null || typeof replacement !== 'object') {
+            throw new error_1.MongoInvalidArgumentError('Argument "replacement" must be an object');
+        }
+        if ((0, utils_1.hasAtomicOperators)(replacement)) {
+            throw new error_1.MongoInvalidArgumentError('Replacement document must not contain atomic operators');
+        }
+        super(collection, filter, options);
+        this.cmdBase.update = replacement;
+        configureFindAndModifyCmdBaseUpdateOpts(this.cmdBase, options);
+    }
+}
+exports.FindOneAndReplaceOperation = FindOneAndReplaceOperation;
+/** @internal */
+class FindOneAndUpdateOperation extends FindAndModifyOperation {
+    constructor(collection, filter, update, options) {
+        if (filter == null || typeof filter !== 'object') {
+            throw new error_1.MongoInvalidArgumentError('Argument "filter" must be an object');
+        }
+        if (update == null || typeof update !== 'object') {
+            throw new error_1.MongoInvalidArgumentError('Argument "update" must be an object');
+        }
+        if (!(0, utils_1.hasAtomicOperators)(update)) {
+            throw new error_1.MongoInvalidArgumentError('Update document requires atomic operators');
+        }
+        super(collection, filter, options);
+        this.cmdBase.update = update;
+        configureFindAndModifyCmdBaseUpdateOpts(this.cmdBase, options);
+        if (options.arrayFilters) {
+            this.cmdBase.arrayFilters = options.arrayFilters;
+        }
+    }
+}
+exports.FindOneAndUpdateOperation = FindOneAndUpdateOperation;
+(0, operation_1.defineAspects)(FindAndModifyOperation, [
+    operation_1.Aspect.WRITE_OPERATION,
+    operation_1.Aspect.RETRYABLE,
+    operation_1.Aspect.EXPLAINABLE
+]);
+//# sourceMappingURL=find_and_modify.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/find_and_modify.js.map b/backend/node_modules/mongodb/lib/operations/find_and_modify.js.map
new file mode 100644
index 0000000..515482f
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/find_and_modify.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/get_more.js b/backend/node_modules/mongodb/lib/operations/get_more.js
new file mode 100644
index 0000000..098dd1c
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/get_more.js
@@ -0,0 +1,63 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.GetMoreOperation = void 0;
+const responses_1 = require("../cmap/wire_protocol/responses");
+const error_1 = require("../error");
+const utils_1 = require("../utils");
+const operation_1 = require("./operation");
+/** @internal */
+class GetMoreOperation extends operation_1.AbstractOperation {
+    constructor(ns, cursorId, server, options) {
+        super(options);
+        this.options = options;
+        this.ns = ns;
+        this.cursorId = cursorId;
+        this.server = server;
+    }
+    get commandName() {
+        return 'getMore';
+    }
+    /**
+     * Although there is a server already associated with the get more operation, the signature
+     * for execute passes a server so we will just use that one.
+     */
+    async execute(server, _session, timeoutContext) {
+        if (server !== this.server) {
+            throw new error_1.MongoRuntimeError('Getmore must run on the same server operation began on');
+        }
+        if (this.cursorId == null || this.cursorId.isZero()) {
+            throw new error_1.MongoRuntimeError('Unable to iterate cursor with no id');
+        }
+        const collection = this.ns.collection;
+        if (collection == null) {
+            // Cursors should have adopted the namespace returned by MongoDB
+            // which should always defined a collection name (even a pseudo one, ex. db.aggregate())
+            throw new error_1.MongoRuntimeError('A collection name must be determined before getMore');
+        }
+        const getMoreCmd = {
+            getMore: this.cursorId,
+            collection
+        };
+        if (typeof this.options.batchSize === 'number') {
+            getMoreCmd.batchSize = Math.abs(this.options.batchSize);
+        }
+        if (typeof this.options.maxAwaitTimeMS === 'number') {
+            getMoreCmd.maxTimeMS = this.options.maxAwaitTimeMS;
+        }
+        // we check for undefined specifically here to allow falsy values
+        // eslint-disable-next-line no-restricted-syntax
+        if (this.options.comment !== undefined && (0, utils_1.maxWireVersion)(server) >= 9) {
+            getMoreCmd.comment = this.options.comment;
+        }
+        const commandOptions = {
+            returnFieldSelector: null,
+            documentsReturnedIn: 'nextBatch',
+            timeoutContext,
+            ...this.options
+        };
+        return await server.command(this.ns, getMoreCmd, commandOptions, responses_1.CursorResponse);
+    }
+}
+exports.GetMoreOperation = GetMoreOperation;
+(0, operation_1.defineAspects)(GetMoreOperation, [operation_1.Aspect.READ_OPERATION, operation_1.Aspect.MUST_SELECT_SAME_SERVER]);
+//# sourceMappingURL=get_more.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/get_more.js.map b/backend/node_modules/mongodb/lib/operations/get_more.js.map
new file mode 100644
index 0000000..8e1d61c
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/get_more.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"get_more.js","sourceRoot":"","sources":["../../src/operations/get_more.ts"],"names":[],"mappings":";;;AACA,+DAAiE;AACjE,oCAA6C;AAI7C,oCAAiE;AACjE,2CAA8F;AA+B9F,gBAAgB;AAChB,MAAa,gBAAiB,SAAQ,6BAAiB;IAIrD,YAAY,EAAoB,EAAE,QAAc,EAAE,MAAc,EAAE,OAAuB;QACvF,KAAK,CAAC,OAAO,CAAC,CAAC;QAEf,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACvB,IAAI,CAAC,EAAE,GAAG,EAAE,CAAC;QACb,IAAI,CAAC,QAAQ,GAAG,QAAQ,CAAC;QACzB,IAAI,CAAC,MAAM,GAAG,MAAM,CAAC;IACvB,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,SAAkB,CAAC;IAC5B,CAAC;IACD;;;OAGG;IACM,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,QAAmC,EACnC,cAA8B;QAE9B,IAAI,MAAM,KAAK,IAAI,CAAC,MAAM,EAAE,CAAC;YAC3B,MAAM,IAAI,yBAAiB,CAAC,wDAAwD,CAAC,CAAC;QACxF,CAAC;QAED,IAAI,IAAI,CAAC,QAAQ,IAAI,IAAI,IAAI,IAAI,CAAC,QAAQ,CAAC,MAAM,EAAE,EAAE,CAAC;YACpD,MAAM,IAAI,yBAAiB,CAAC,qCAAqC,CAAC,CAAC;QACrE,CAAC;QAED,MAAM,UAAU,GAAG,IAAI,CAAC,EAAE,CAAC,UAAU,CAAC;QACtC,IAAI,UAAU,IAAI,IAAI,EAAE,CAAC;YACvB,gEAAgE;YAChE,wFAAwF;YACxF,MAAM,IAAI,yBAAiB,CAAC,qDAAqD,CAAC,CAAC;QACrF,CAAC;QAED,MAAM,UAAU,GAAmB;YACjC,OAAO,EAAE,IAAI,CAAC,QAAQ;YACtB,UAAU;SACX,CAAC;QAEF,IAAI,OAAO,IAAI,CAAC,OAAO,CAAC,SAAS,KAAK,QAAQ,EAAE,CAAC;YAC/C,UAAU,CAAC,SAAS,GAAG,IAAI,CAAC,GAAG,CAAC,IAAI,CAAC,OAAO,CAAC,SAAS,CAAC,CAAC;QAC1D,CAAC;QAED,IAAI,OAAO,IAAI,CAAC,OAAO,CAAC,cAAc,KAAK,QAAQ,EAAE,CAAC;YACpD,UAAU,CAAC,SAAS,GAAG,IAAI,CAAC,OAAO,CAAC,cAAc,CAAC;QACrD,CAAC;QAED,iEAAiE;QACjE,gDAAgD;QAChD,IAAI,IAAI,CAAC,OAAO,CAAC,OAAO,KAAK,SAAS,IAAI,IAAA,sBAAc,EAAC,MAAM,CAAC,IAAI,CAAC,EAAE,CAAC;YACtE,UAAU,CAAC,OAAO,GAAG,IAAI,CAAC,OAAO,CAAC,OAAO,CAAC;QAC5C,CAAC;QAED,MAAM,cAAc,GAAG;YACrB,mBAAmB,EAAE,IAAI;YACzB,mBAAmB,EAAE,WAAW;YAChC,cAAc;YACd,GAAG,IAAI,CAAC,OAAO;SAChB,CAAC;QAEF,OAAO,MAAM,MAAM,CAAC,OAAO,CAAC,IAAI,CAAC,EAAE,EAAE,UAAU,EAAE,cAAc,EAAE,0BAAc,CAAC,CAAC;IACnF,CAAC;CACF;AApED,4CAoEC;AAED,IAAA,yBAAa,EAAC,gBAAgB,EAAE,CAAC,kBAAM,CAAC,cAAc,EAAE,kBAAM,CAAC,uBAAuB,CAAC,CAAC,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/indexes.js b/backend/node_modules/mongodb/lib/operations/indexes.js
new file mode 100644
index 0000000..9c169c7
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/indexes.js
@@ -0,0 +1,176 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ListIndexesOperation = exports.DropIndexOperation = exports.CreateIndexesOperation = void 0;
+const responses_1 = require("../cmap/wire_protocol/responses");
+const error_1 = require("../error");
+const utils_1 = require("../utils");
+const command_1 = require("./command");
+const operation_1 = require("./operation");
+const VALID_INDEX_OPTIONS = new Set([
+    'background',
+    'unique',
+    'name',
+    'partialFilterExpression',
+    'sparse',
+    'hidden',
+    'expireAfterSeconds',
+    'storageEngine',
+    'collation',
+    'version',
+    // text indexes
+    'weights',
+    'default_language',
+    'language_override',
+    'textIndexVersion',
+    // 2d-sphere indexes
+    '2dsphereIndexVersion',
+    // 2d indexes
+    'bits',
+    'min',
+    'max',
+    // geoHaystack Indexes
+    'bucketSize',
+    // wildcard indexes
+    'wildcardProjection'
+]);
+function isIndexDirection(x) {
+    return (typeof x === 'number' || x === '2d' || x === '2dsphere' || x === 'text' || x === 'geoHaystack');
+}
+function isSingleIndexTuple(t) {
+    return Array.isArray(t) && t.length === 2 && isIndexDirection(t[1]);
+}
+/**
+ * Converts an `IndexSpecification`, which can be specified in multiple formats, into a
+ * valid `key` for the createIndexes command.
+ */
+function constructIndexDescriptionMap(indexSpec) {
+    const key = new Map();
+    const indexSpecs = !Array.isArray(indexSpec) || isSingleIndexTuple(indexSpec) ? [indexSpec] : indexSpec;
+    // Iterate through array and handle different types
+    for (const spec of indexSpecs) {
+        if (typeof spec === 'string') {
+            key.set(spec, 1);
+        }
+        else if (Array.isArray(spec)) {
+            key.set(spec[0], spec[1] ?? 1);
+        }
+        else if (spec instanceof Map) {
+            for (const [property, value] of spec) {
+                key.set(property, value);
+            }
+        }
+        else if ((0, utils_1.isObject)(spec)) {
+            for (const [property, value] of Object.entries(spec)) {
+                key.set(property, value);
+            }
+        }
+    }
+    return key;
+}
+/**
+ * Receives an index description and returns a modified index description which has had invalid options removed
+ * from the description and has mapped the `version` option to the `v` option.
+ */
+function resolveIndexDescription(description) {
+    const validProvidedOptions = Object.entries(description).filter(([optionName]) => VALID_INDEX_OPTIONS.has(optionName));
+    return Object.fromEntries(
+    // we support the `version` option, but the `createIndexes` command expects it to be the `v`
+    validProvidedOptions.map(([name, value]) => (name === 'version' ? ['v', value] : [name, value])));
+}
+/** @internal */
+class CreateIndexesOperation extends command_1.CommandOperation {
+    constructor(parent, collectionName, indexes, options) {
+        super(parent, options);
+        this.options = options ?? {};
+        this.collectionName = collectionName;
+        this.indexes = indexes.map((userIndex) => {
+            // Ensure the key is a Map to preserve index key ordering
+            const key = userIndex.key instanceof Map ? userIndex.key : new Map(Object.entries(userIndex.key));
+            const name = userIndex.name ?? Array.from(key).flat().join('_');
+            const validIndexOptions = resolveIndexDescription(userIndex);
+            return {
+                ...validIndexOptions,
+                name,
+                key
+            };
+        });
+    }
+    static fromIndexDescriptionArray(parent, collectionName, indexes, options) {
+        return new CreateIndexesOperation(parent, collectionName, indexes, options);
+    }
+    static fromIndexSpecification(parent, collectionName, indexSpec, options = {}) {
+        const key = constructIndexDescriptionMap(indexSpec);
+        const description = { ...options, key };
+        return new CreateIndexesOperation(parent, collectionName, [description], options);
+    }
+    get commandName() {
+        return 'createIndexes';
+    }
+    async execute(server, session, timeoutContext) {
+        const options = this.options;
+        const indexes = this.indexes;
+        const serverWireVersion = (0, utils_1.maxWireVersion)(server);
+        const cmd = { createIndexes: this.collectionName, indexes };
+        if (options.commitQuorum != null) {
+            if (serverWireVersion < 9) {
+                throw new error_1.MongoCompatibilityError('Option `commitQuorum` for `createIndexes` not supported on servers < 4.4');
+            }
+            cmd.commitQuorum = options.commitQuorum;
+        }
+        // collation is set on each index, it should not be defined at the root
+        this.options.collation = undefined;
+        await super.executeCommand(server, session, cmd, timeoutContext);
+        const indexNames = indexes.map(index => index.name || '');
+        return indexNames;
+    }
+}
+exports.CreateIndexesOperation = CreateIndexesOperation;
+/** @internal */
+class DropIndexOperation extends command_1.CommandOperation {
+    constructor(collection, indexName, options) {
+        super(collection, options);
+        this.options = options ?? {};
+        this.collection = collection;
+        this.indexName = indexName;
+    }
+    get commandName() {
+        return 'dropIndexes';
+    }
+    async execute(server, session, timeoutContext) {
+        const cmd = { dropIndexes: this.collection.collectionName, index: this.indexName };
+        return await super.executeCommand(server, session, cmd, timeoutContext);
+    }
+}
+exports.DropIndexOperation = DropIndexOperation;
+/** @internal */
+class ListIndexesOperation extends command_1.CommandOperation {
+    constructor(collection, options) {
+        super(collection, options);
+        this.options = { ...options };
+        delete this.options.writeConcern;
+        this.collectionNamespace = collection.s.namespace;
+    }
+    get commandName() {
+        return 'listIndexes';
+    }
+    async execute(server, session, timeoutContext) {
+        const serverWireVersion = (0, utils_1.maxWireVersion)(server);
+        const cursor = this.options.batchSize ? { batchSize: this.options.batchSize } : {};
+        const command = { listIndexes: this.collectionNamespace.collection, cursor };
+        // we check for undefined specifically here to allow falsy values
+        // eslint-disable-next-line no-restricted-syntax
+        if (serverWireVersion >= 9 && this.options.comment !== undefined) {
+            command.comment = this.options.comment;
+        }
+        return await super.executeCommand(server, session, command, timeoutContext, responses_1.CursorResponse);
+    }
+}
+exports.ListIndexesOperation = ListIndexesOperation;
+(0, operation_1.defineAspects)(ListIndexesOperation, [
+    operation_1.Aspect.READ_OPERATION,
+    operation_1.Aspect.RETRYABLE,
+    operation_1.Aspect.CURSOR_CREATING
+]);
+(0, operation_1.defineAspects)(CreateIndexesOperation, [operation_1.Aspect.WRITE_OPERATION]);
+(0, operation_1.defineAspects)(DropIndexOperation, [operation_1.Aspect.WRITE_OPERATION]);
+//# sourceMappingURL=indexes.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/indexes.js.map b/backend/node_modules/mongodb/lib/operations/indexes.js.map
new file mode 100644
index 0000000..85a533b
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/indexes.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/insert.js b/backend/node_modules/mongodb/lib/operations/insert.js
new file mode 100644
index 0000000..20b7d56
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/insert.js
@@ -0,0 +1,101 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.InsertManyOperation = exports.InsertOneOperation = exports.InsertOperation = void 0;
+const error_1 = require("../error");
+const utils_1 = require("../utils");
+const write_concern_1 = require("../write_concern");
+const bulk_write_1 = require("./bulk_write");
+const command_1 = require("./command");
+const operation_1 = require("./operation");
+/** @internal */
+class InsertOperation extends command_1.CommandOperation {
+    constructor(ns, documents, options) {
+        super(undefined, options);
+        this.options = { ...options, checkKeys: options.checkKeys ?? false };
+        this.ns = ns;
+        this.documents = documents;
+    }
+    get commandName() {
+        return 'insert';
+    }
+    async execute(server, session, timeoutContext) {
+        const options = this.options ?? {};
+        const ordered = typeof options.ordered === 'boolean' ? options.ordered : true;
+        const command = {
+            insert: this.ns.collection,
+            documents: this.documents,
+            ordered
+        };
+        if (typeof options.bypassDocumentValidation === 'boolean') {
+            command.bypassDocumentValidation = options.bypassDocumentValidation;
+        }
+        // we check for undefined specifically here to allow falsy values
+        // eslint-disable-next-line no-restricted-syntax
+        if (options.comment !== undefined) {
+            command.comment = options.comment;
+        }
+        return await super.executeCommand(server, session, command, timeoutContext);
+    }
+}
+exports.InsertOperation = InsertOperation;
+class InsertOneOperation extends InsertOperation {
+    constructor(collection, doc, options) {
+        super(collection.s.namespace, (0, utils_1.maybeAddIdToDocuments)(collection, [doc], options), options);
+    }
+    async execute(server, session, timeoutContext) {
+        const res = await super.execute(server, session, timeoutContext);
+        if (res.code)
+            throw new error_1.MongoServerError(res);
+        if (res.writeErrors) {
+            // This should be a WriteError but we can't change it now because of error hierarchy
+            throw new error_1.MongoServerError(res.writeErrors[0]);
+        }
+        return {
+            acknowledged: this.writeConcern?.w !== 0,
+            insertedId: this.documents[0]._id
+        };
+    }
+}
+exports.InsertOneOperation = InsertOneOperation;
+/** @internal */
+class InsertManyOperation extends operation_1.AbstractOperation {
+    constructor(collection, docs, options) {
+        super(options);
+        if (!Array.isArray(docs)) {
+            throw new error_1.MongoInvalidArgumentError('Argument "docs" must be an array of documents');
+        }
+        this.options = options;
+        this.collection = collection;
+        this.docs = docs;
+    }
+    get commandName() {
+        return 'insert';
+    }
+    async execute(server, session, timeoutContext) {
+        const coll = this.collection;
+        const options = { ...this.options, ...this.bsonOptions, readPreference: this.readPreference };
+        const writeConcern = write_concern_1.WriteConcern.fromOptions(options);
+        const bulkWriteOperation = new bulk_write_1.BulkWriteOperation(coll, this.docs.map(document => ({
+            insertOne: { document }
+        })), options);
+        try {
+            const res = await bulkWriteOperation.execute(server, session, timeoutContext);
+            return {
+                acknowledged: writeConcern?.w !== 0,
+                insertedCount: res.insertedCount,
+                insertedIds: res.insertedIds
+            };
+        }
+        catch (err) {
+            if (err && err.message === 'Operation must be an object with an operation key') {
+                throw new error_1.MongoInvalidArgumentError('Collection.insertMany() cannot be called with an array that has null/undefined values');
+            }
+            throw err;
+        }
+    }
+}
+exports.InsertManyOperation = InsertManyOperation;
+(0, operation_1.defineAspects)(InsertOperation, [operation_1.Aspect.RETRYABLE, operation_1.Aspect.WRITE_OPERATION]);
+(0, operation_1.defineAspects)(InsertOneOperation, [operation_1.Aspect.RETRYABLE, operation_1.Aspect.WRITE_OPERATION]);
+(0, operation_1.defineAspects)(InsertManyOperation, [operation_1.Aspect.WRITE_OPERATION]);
+//# sourceMappingURL=insert.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/insert.js.map b/backend/node_modules/mongodb/lib/operations/insert.js.map
new file mode 100644
index 0000000..4dc9a83
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/insert.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"insert.js","sourceRoot":"","sources":["../../src/operations/insert.ts"],"names":[],"mappings":";;;AAGA,oCAAuE;AAKvE,oCAAwE;AACxE,oDAAgD;AAChD,6CAAkD;AAClD,uCAA2E;AAC3E,2CAAuE;AAEvE,gBAAgB;AAChB,MAAa,eAAgB,SAAQ,0BAA0B;IAI7D,YAAY,EAAoB,EAAE,SAAqB,EAAE,OAAyB;QAChF,KAAK,CAAC,SAAS,EAAE,OAAO,CAAC,CAAC;QAC1B,IAAI,CAAC,OAAO,GAAG,EAAE,GAAG,OAAO,EAAE,SAAS,EAAE,OAAO,CAAC,SAAS,IAAI,KAAK,EAAE,CAAC;QACrE,IAAI,CAAC,EAAE,GAAG,EAAE,CAAC;QACb,IAAI,CAAC,SAAS,GAAG,SAAS,CAAC;IAC7B,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,QAAiB,CAAC;IAC3B,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,OAAO,GAAG,IAAI,CAAC,OAAO,IAAI,EAAE,CAAC;QACnC,MAAM,OAAO,GAAG,OAAO,OAAO,CAAC,OAAO,KAAK,SAAS,CAAC,CAAC,CAAC,OAAO,CAAC,OAAO,CAAC,CAAC,CAAC,IAAI,CAAC;QAC9E,MAAM,OAAO,GAAa;YACxB,MAAM,EAAE,IAAI,CAAC,EAAE,CAAC,UAAU;YAC1B,SAAS,EAAE,IAAI,CAAC,SAAS;YACzB,OAAO;SACR,CAAC;QAEF,IAAI,OAAO,OAAO,CAAC,wBAAwB,KAAK,SAAS,EAAE,CAAC;YAC1D,OAAO,CAAC,wBAAwB,GAAG,OAAO,CAAC,wBAAwB,CAAC;QACtE,CAAC;QAED,iEAAiE;QACjE,gDAAgD;QAChD,IAAI,OAAO,CAAC,OAAO,KAAK,SAAS,EAAE,CAAC;YAClC,OAAO,CAAC,OAAO,GAAG,OAAO,CAAC,OAAO,CAAC;QACpC,CAAC;QAED,OAAO,MAAM,KAAK,CAAC,cAAc,CAAC,MAAM,EAAE,OAAO,EAAE,OAAO,EAAE,cAAc,CAAC,CAAC;IAC9E,CAAC;CACF;AAxCD,0CAwCC;AAkBD,MAAa,kBAAmB,SAAQ,eAAe;IACrD,YAAY,UAAsB,EAAE,GAAa,EAAE,OAAyB;QAC1E,KAAK,CAAC,UAAU,CAAC,CAAC,CAAC,SAAS,EAAE,IAAA,6BAAqB,EAAC,UAAU,EAAE,CAAC,GAAG,CAAC,EAAE,OAAO,CAAC,EAAE,OAAO,CAAC,CAAC;IAC5F,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,GAAG,GAAG,MAAM,KAAK,CAAC,OAAO,CAAC,MAAM,EAAE,OAAO,EAAE,cAAc,CAAC,CAAC;QACjE,IAAI,GAAG,CAAC,IAAI;YAAE,MAAM,IAAI,wBAAgB,CAAC,GAAG,CAAC,CAAC;QAC9C,IAAI,GAAG,CAAC,WAAW,EAAE,CAAC;YACpB,oFAAoF;YACpF,MAAM,IAAI,wBAAgB,CAAC,GAAG,CAAC,WAAW,CAAC,CAAC,CAAC,CAAC,CAAC;QACjD,CAAC;QAED,OAAO;YACL,YAAY,EAAE,IAAI,CAAC,YAAY,EAAE,CAAC,KAAK,CAAC;YACxC,UAAU,EAAE,IAAI,CAAC,SAAS,CAAC,CAAC,CAAC,CAAC,GAAG;SAClC,CAAC;IACJ,CAAC;CACF;AAtBD,gDAsBC;AAYD,gBAAgB;AAChB,MAAa,mBAAoB,SAAQ,6BAAmC;IAK1E,YAAY,UAAsB,EAAE,IAA6B,EAAE,OAAyB;QAC1F,KAAK,CAAC,OAAO,CAAC,CAAC;QAEf,IAAI,CAAC,KAAK,CAAC,OAAO,CAAC,IAAI,CAAC,EAAE,CAAC;YACzB,MAAM,IAAI,iCAAyB,CAAC,+CAA+C,CAAC,CAAC;QACvF,CAAC;QAED,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACvB,IAAI,CAAC,UAAU,GAAG,UAAU,CAAC;QAC7B,IAAI,CAAC,IAAI,GAAG,IAAI,CAAC;IACnB,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,QAAiB,CAAC;IAC3B,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,IAAI,GAAG,IAAI,CAAC,UAAU,CAAC;QAC7B,MAAM,OAAO,GAAG,EAAE,GAAG,IAAI,CAAC,OAAO,EAAE,GAAG,IAAI,CAAC,WAAW,EAAE,cAAc,EAAE,IAAI,CAAC,cAAc,EAAE,CAAC;QAC9F,MAAM,YAAY,GAAG,4BAAY,CAAC,WAAW,CAAC,OAAO,CAAC,CAAC;QACvD,MAAM,kBAAkB,GAAG,IAAI,+BAAkB,CAC/C,IAAI,EACJ,IAAI,CAAC,IAAI,CAAC,GAAG,CAAC,QAAQ,CAAC,EAAE,CAAC,CAAC;YACzB,SAAS,EAAE,EAAE,QAAQ,EAAE;SACxB,CAAC,CAAC,EACH,OAAO,CACR,CAAC;QAEF,IAAI,CAAC;YACH,MAAM,GAAG,GAAG,MAAM,kBAAkB,CAAC,OAAO,CAAC,MAAM,EAAE,OAAO,EAAE,cAAc,CAAC,CAAC;YAC9E,OAAO;gBACL,YAAY,EAAE,YAAY,EAAE,CAAC,KAAK,CAAC;gBACnC,aAAa,EAAE,GAAG,CAAC,aAAa;gBAChC,WAAW,EAAE,GAAG,CAAC,WAAW;aAC7B,CAAC;QACJ,CAAC;QAAC,OAAO,GAAG,EAAE,CAAC;YACb,IAAI,GAAG,IAAI,GAAG,CAAC,OAAO,KAAK,mDAAmD,EAAE,CAAC;gBAC/E,MAAM,IAAI,iCAAyB,CACjC,uFAAuF,CACxF,CAAC;YACJ,CAAC;YACD,MAAM,GAAG,CAAC;QACZ,CAAC;IACH,CAAC;CACF;AArDD,kDAqDC;AAED,IAAA,yBAAa,EAAC,eAAe,EAAE,CAAC,kBAAM,CAAC,SAAS,EAAE,kBAAM,CAAC,eAAe,CAAC,CAAC,CAAC;AAC3E,IAAA,yBAAa,EAAC,kBAAkB,EAAE,CAAC,kBAAM,CAAC,SAAS,EAAE,kBAAM,CAAC,eAAe,CAAC,CAAC,CAAC;AAC9E,IAAA,yBAAa,EAAC,mBAAmB,EAAE,CAAC,kBAAM,CAAC,eAAe,CAAC,CAAC,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/is_capped.js b/backend/node_modules/mongodb/lib/operations/is_capped.js
new file mode 100644
index 0000000..5ba90d0
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/is_capped.js
@@ -0,0 +1,28 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.IsCappedOperation = void 0;
+const error_1 = require("../error");
+const operation_1 = require("./operation");
+/** @internal */
+class IsCappedOperation extends operation_1.AbstractOperation {
+    constructor(collection, options) {
+        super(options);
+        this.options = options;
+        this.collection = collection;
+    }
+    get commandName() {
+        return 'listCollections';
+    }
+    async execute(server, session) {
+        const coll = this.collection;
+        const [collection] = await coll.s.db
+            .listCollections({ name: coll.collectionName }, { ...this.options, nameOnly: false, readPreference: this.readPreference, session })
+            .toArray();
+        if (collection == null || collection.options == null) {
+            throw new error_1.MongoAPIError(`collection ${coll.namespace} not found`);
+        }
+        return !!collection.options?.capped;
+    }
+}
+exports.IsCappedOperation = IsCappedOperation;
+//# sourceMappingURL=is_capped.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/is_capped.js.map b/backend/node_modules/mongodb/lib/operations/is_capped.js.map
new file mode 100644
index 0000000..8f3cf39
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/is_capped.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"is_capped.js","sourceRoot":"","sources":["../../src/operations/is_capped.ts"],"names":[],"mappings":";;;AACA,oCAAyC;AAGzC,2CAAuE;AAEvE,gBAAgB;AAChB,MAAa,iBAAkB,SAAQ,6BAA0B;IAI/D,YAAY,UAAsB,EAAE,OAAyB;QAC3D,KAAK,CAAC,OAAO,CAAC,CAAC;QACf,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACvB,IAAI,CAAC,UAAU,GAAG,UAAU,CAAC;IAC/B,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,iBAA0B,CAAC;IACpC,CAAC;IAEQ,KAAK,CAAC,OAAO,CAAC,MAAc,EAAE,OAAkC;QACvE,MAAM,IAAI,GAAG,IAAI,CAAC,UAAU,CAAC;QAC7B,MAAM,CAAC,UAAU,CAAC,GAAG,MAAM,IAAI,CAAC,CAAC,CAAC,EAAE;aACjC,eAAe,CACd,EAAE,IAAI,EAAE,IAAI,CAAC,cAAc,EAAE,EAC7B,EAAE,GAAG,IAAI,CAAC,OAAO,EAAE,QAAQ,EAAE,KAAK,EAAE,cAAc,EAAE,IAAI,CAAC,cAAc,EAAE,OAAO,EAAE,CACnF;aACA,OAAO,EAAE,CAAC;QACb,IAAI,UAAU,IAAI,IAAI,IAAI,UAAU,CAAC,OAAO,IAAI,IAAI,EAAE,CAAC;YACrD,MAAM,IAAI,qBAAa,CAAC,cAAc,IAAI,CAAC,SAAS,YAAY,CAAC,CAAC;QACpE,CAAC;QACD,OAAO,CAAC,CAAC,UAAU,CAAC,OAAO,EAAE,MAAM,CAAC;IACtC,CAAC;CACF;AA3BD,8CA2BC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/kill_cursors.js b/backend/node_modules/mongodb/lib/operations/kill_cursors.js
new file mode 100644
index 0000000..f727a50
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/kill_cursors.js
@@ -0,0 +1,45 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.KillCursorsOperation = void 0;
+const error_1 = require("../error");
+const utils_1 = require("../utils");
+const operation_1 = require("./operation");
+class KillCursorsOperation extends operation_1.AbstractOperation {
+    constructor(cursorId, ns, server, options) {
+        super(options);
+        this.ns = ns;
+        this.cursorId = cursorId;
+        this.server = server;
+    }
+    get commandName() {
+        return 'killCursors';
+    }
+    async execute(server, session, timeoutContext) {
+        if (server !== this.server) {
+            throw new error_1.MongoRuntimeError('Killcursor must run on the same server operation began on');
+        }
+        const killCursors = this.ns.collection;
+        if (killCursors == null) {
+            // Cursors should have adopted the namespace returned by MongoDB
+            // which should always defined a collection name (even a pseudo one, ex. db.aggregate())
+            throw new error_1.MongoRuntimeError('A collection name must be determined before killCursors');
+        }
+        const killCursorsCommand = {
+            killCursors,
+            cursors: [this.cursorId]
+        };
+        try {
+            await server.command(this.ns, killCursorsCommand, {
+                session,
+                timeoutContext
+            });
+        }
+        catch (error) {
+            // The driver should never emit errors from killCursors, this is spec-ed behavior
+            (0, utils_1.squashError)(error);
+        }
+    }
+}
+exports.KillCursorsOperation = KillCursorsOperation;
+(0, operation_1.defineAspects)(KillCursorsOperation, [operation_1.Aspect.MUST_SELECT_SAME_SERVER]);
+//# sourceMappingURL=kill_cursors.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/kill_cursors.js.map b/backend/node_modules/mongodb/lib/operations/kill_cursors.js.map
new file mode 100644
index 0000000..30142fe
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/kill_cursors.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"kill_cursors.js","sourceRoot":"","sources":["../../src/operations/kill_cursors.ts"],"names":[],"mappings":";;;AACA,oCAA6C;AAI7C,oCAA8D;AAC9D,2CAA8F;AAY9F,MAAa,oBAAqB,SAAQ,6BAAiB;IAGzD,YAAY,QAAc,EAAE,EAAoB,EAAE,MAAc,EAAE,OAAyB;QACzF,KAAK,CAAC,OAAO,CAAC,CAAC;QACf,IAAI,CAAC,EAAE,GAAG,EAAE,CAAC;QACb,IAAI,CAAC,QAAQ,GAAG,QAAQ,CAAC;QACzB,IAAI,CAAC,MAAM,GAAG,MAAM,CAAC;IACvB,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,aAAsB,CAAC;IAChC,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,IAAI,MAAM,KAAK,IAAI,CAAC,MAAM,EAAE,CAAC;YAC3B,MAAM,IAAI,yBAAiB,CAAC,2DAA2D,CAAC,CAAC;QAC3F,CAAC;QAED,MAAM,WAAW,GAAG,IAAI,CAAC,EAAE,CAAC,UAAU,CAAC;QACvC,IAAI,WAAW,IAAI,IAAI,EAAE,CAAC;YACxB,gEAAgE;YAChE,wFAAwF;YACxF,MAAM,IAAI,yBAAiB,CAAC,yDAAyD,CAAC,CAAC;QACzF,CAAC;QAED,MAAM,kBAAkB,GAAuB;YAC7C,WAAW;YACX,OAAO,EAAE,CAAC,IAAI,CAAC,QAAQ,CAAC;SACzB,CAAC;QACF,IAAI,CAAC;YACH,MAAM,MAAM,CAAC,OAAO,CAAC,IAAI,CAAC,EAAE,EAAE,kBAAkB,EAAE;gBAChD,OAAO;gBACP,cAAc;aACf,CAAC,CAAC;QACL,CAAC;QAAC,OAAO,KAAK,EAAE,CAAC;YACf,iFAAiF;YACjF,IAAA,mBAAW,EAAC,KAAK,CAAC,CAAC;QACrB,CAAC;IACH,CAAC;CACF;AA5CD,oDA4CC;AAED,IAAA,yBAAa,EAAC,oBAAoB,EAAE,CAAC,kBAAM,CAAC,uBAAuB,CAAC,CAAC,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/list_collections.js b/backend/node_modules/mongodb/lib/operations/list_collections.js
new file mode 100644
index 0000000..1cfcd1b
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/list_collections.js
@@ -0,0 +1,51 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ListCollectionsOperation = void 0;
+const responses_1 = require("../cmap/wire_protocol/responses");
+const utils_1 = require("../utils");
+const command_1 = require("./command");
+const operation_1 = require("./operation");
+/** @internal */
+class ListCollectionsOperation extends command_1.CommandOperation {
+    constructor(db, filter, options) {
+        super(db, options);
+        this.options = { ...options };
+        delete this.options.writeConcern;
+        this.db = db;
+        this.filter = filter;
+        this.nameOnly = !!this.options.nameOnly;
+        this.authorizedCollections = !!this.options.authorizedCollections;
+        if (typeof this.options.batchSize === 'number') {
+            this.batchSize = this.options.batchSize;
+        }
+    }
+    get commandName() {
+        return 'listCollections';
+    }
+    async execute(server, session, timeoutContext) {
+        return await super.executeCommand(server, session, this.generateCommand((0, utils_1.maxWireVersion)(server)), timeoutContext, responses_1.CursorResponse);
+    }
+    /* This is here for the purpose of unit testing the final command that gets sent. */
+    generateCommand(wireVersion) {
+        const command = {
+            listCollections: 1,
+            filter: this.filter,
+            cursor: this.batchSize ? { batchSize: this.batchSize } : {},
+            nameOnly: this.nameOnly,
+            authorizedCollections: this.authorizedCollections
+        };
+        // we check for undefined specifically here to allow falsy values
+        // eslint-disable-next-line no-restricted-syntax
+        if (wireVersion >= 9 && this.options.comment !== undefined) {
+            command.comment = this.options.comment;
+        }
+        return command;
+    }
+}
+exports.ListCollectionsOperation = ListCollectionsOperation;
+(0, operation_1.defineAspects)(ListCollectionsOperation, [
+    operation_1.Aspect.READ_OPERATION,
+    operation_1.Aspect.RETRYABLE,
+    operation_1.Aspect.CURSOR_CREATING
+]);
+//# sourceMappingURL=list_collections.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/list_collections.js.map b/backend/node_modules/mongodb/lib/operations/list_collections.js.map
new file mode 100644
index 0000000..fc75d07
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/list_collections.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"list_collections.js","sourceRoot":"","sources":["../../src/operations/list_collections.ts"],"names":[],"mappings":";;;AACA,+DAAiE;AAMjE,oCAA0C;AAC1C,uCAA2E;AAC3E,2CAAoD;AAiBpD,gBAAgB;AAChB,MAAa,wBAAyB,SAAQ,0BAAgC;IAe5E,YAAY,EAAM,EAAE,MAAgB,EAAE,OAAgC;QACpE,KAAK,CAAC,EAAE,EAAE,OAAO,CAAC,CAAC;QAEnB,IAAI,CAAC,OAAO,GAAG,EAAE,GAAG,OAAO,EAAE,CAAC;QAC9B,OAAO,IAAI,CAAC,OAAO,CAAC,YAAY,CAAC;QACjC,IAAI,CAAC,EAAE,GAAG,EAAE,CAAC;QACb,IAAI,CAAC,MAAM,GAAG,MAAM,CAAC;QACrB,IAAI,CAAC,QAAQ,GAAG,CAAC,CAAC,IAAI,CAAC,OAAO,CAAC,QAAQ,CAAC;QACxC,IAAI,CAAC,qBAAqB,GAAG,CAAC,CAAC,IAAI,CAAC,OAAO,CAAC,qBAAqB,CAAC;QAElE,IAAI,OAAO,IAAI,CAAC,OAAO,CAAC,SAAS,KAAK,QAAQ,EAAE,CAAC;YAC/C,IAAI,CAAC,SAAS,GAAG,IAAI,CAAC,OAAO,CAAC,SAAS,CAAC;QAC1C,CAAC;IACH,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,iBAA0B,CAAC;IACpC,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,OAAO,MAAM,KAAK,CAAC,cAAc,CAC/B,MAAM,EACN,OAAO,EACP,IAAI,CAAC,eAAe,CAAC,IAAA,sBAAc,EAAC,MAAM,CAAC,CAAC,EAC5C,cAAc,EACd,0BAAc,CACf,CAAC;IACJ,CAAC;IAED,oFAAoF;IACpF,eAAe,CAAC,WAAmB;QACjC,MAAM,OAAO,GAAa;YACxB,eAAe,EAAE,CAAC;YAClB,MAAM,EAAE,IAAI,CAAC,MAAM;YACnB,MAAM,EAAE,IAAI,CAAC,SAAS,CAAC,CAAC,CAAC,EAAE,SAAS,EAAE,IAAI,CAAC,SAAS,EAAE,CAAC,CAAC,CAAC,EAAE;YAC3D,QAAQ,EAAE,IAAI,CAAC,QAAQ;YACvB,qBAAqB,EAAE,IAAI,CAAC,qBAAqB;SAClD,CAAC;QAEF,iEAAiE;QACjE,gDAAgD;QAChD,IAAI,WAAW,IAAI,CAAC,IAAI,IAAI,CAAC,OAAO,CAAC,OAAO,KAAK,SAAS,EAAE,CAAC;YAC3D,OAAO,CAAC,OAAO,GAAG,IAAI,CAAC,OAAO,CAAC,OAAO,CAAC;QACzC,CAAC;QAED,OAAO,OAAO,CAAC;IACjB,CAAC;CACF;AAlED,4DAkEC;AAcD,IAAA,yBAAa,EAAC,wBAAwB,EAAE;IACtC,kBAAM,CAAC,cAAc;IACrB,kBAAM,CAAC,SAAS;IAChB,kBAAM,CAAC,eAAe;CACvB,CAAC,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/list_databases.js b/backend/node_modules/mongodb/lib/operations/list_databases.js
new file mode 100644
index 0000000..387a213
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/list_databases.js
@@ -0,0 +1,38 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ListDatabasesOperation = void 0;
+const utils_1 = require("../utils");
+const command_1 = require("./command");
+const operation_1 = require("./operation");
+/** @internal */
+class ListDatabasesOperation extends command_1.CommandOperation {
+    constructor(db, options) {
+        super(db, options);
+        this.options = options ?? {};
+        this.ns = new utils_1.MongoDBNamespace('admin', '$cmd');
+    }
+    get commandName() {
+        return 'listDatabases';
+    }
+    async execute(server, session, timeoutContext) {
+        const cmd = { listDatabases: 1 };
+        if (typeof this.options.nameOnly === 'boolean') {
+            cmd.nameOnly = this.options.nameOnly;
+        }
+        if (this.options.filter) {
+            cmd.filter = this.options.filter;
+        }
+        if (typeof this.options.authorizedDatabases === 'boolean') {
+            cmd.authorizedDatabases = this.options.authorizedDatabases;
+        }
+        // we check for undefined specifically here to allow falsy values
+        // eslint-disable-next-line no-restricted-syntax
+        if ((0, utils_1.maxWireVersion)(server) >= 9 && this.options.comment !== undefined) {
+            cmd.comment = this.options.comment;
+        }
+        return await super.executeCommand(server, session, cmd, timeoutContext);
+    }
+}
+exports.ListDatabasesOperation = ListDatabasesOperation;
+(0, operation_1.defineAspects)(ListDatabasesOperation, [operation_1.Aspect.READ_OPERATION, operation_1.Aspect.RETRYABLE]);
+//# sourceMappingURL=list_databases.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/list_databases.js.map b/backend/node_modules/mongodb/lib/operations/list_databases.js.map
new file mode 100644
index 0000000..0f43f35
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/list_databases.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"list_databases.js","sourceRoot":"","sources":["../../src/operations/list_databases.ts"],"names":[],"mappings":";;;AAMA,oCAA4D;AAC5D,uCAA2E;AAC3E,2CAAoD;AAoBpD,gBAAgB;AAChB,MAAa,sBAAuB,SAAQ,0BAAqC;IAG/E,YAAY,EAAM,EAAE,OAA8B;QAChD,KAAK,CAAC,EAAE,EAAE,OAAO,CAAC,CAAC;QACnB,IAAI,CAAC,OAAO,GAAG,OAAO,IAAI,EAAE,CAAC;QAC7B,IAAI,CAAC,EAAE,GAAG,IAAI,wBAAgB,CAAC,OAAO,EAAE,MAAM,CAAC,CAAC;IAClD,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,eAAwB,CAAC;IAClC,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,GAAG,GAAa,EAAE,aAAa,EAAE,CAAC,EAAE,CAAC;QAE3C,IAAI,OAAO,IAAI,CAAC,OAAO,CAAC,QAAQ,KAAK,SAAS,EAAE,CAAC;YAC/C,GAAG,CAAC,QAAQ,GAAG,IAAI,CAAC,OAAO,CAAC,QAAQ,CAAC;QACvC,CAAC;QAED,IAAI,IAAI,CAAC,OAAO,CAAC,MAAM,EAAE,CAAC;YACxB,GAAG,CAAC,MAAM,GAAG,IAAI,CAAC,OAAO,CAAC,MAAM,CAAC;QACnC,CAAC;QAED,IAAI,OAAO,IAAI,CAAC,OAAO,CAAC,mBAAmB,KAAK,SAAS,EAAE,CAAC;YAC1D,GAAG,CAAC,mBAAmB,GAAG,IAAI,CAAC,OAAO,CAAC,mBAAmB,CAAC;QAC7D,CAAC;QAED,iEAAiE;QACjE,gDAAgD;QAChD,IAAI,IAAA,sBAAc,EAAC,MAAM,CAAC,IAAI,CAAC,IAAI,IAAI,CAAC,OAAO,CAAC,OAAO,KAAK,SAAS,EAAE,CAAC;YACtE,GAAG,CAAC,OAAO,GAAG,IAAI,CAAC,OAAO,CAAC,OAAO,CAAC;QACrC,CAAC;QAED,OAAO,MAAO,KAAK,CAAC,cAAc,CAChC,MAAM,EACN,OAAO,EACP,GAAG,EACH,cAAc,CACa,CAAC;IAChC,CAAC;CACF;AA7CD,wDA6CC;AAED,IAAA,yBAAa,EAAC,sBAAsB,EAAE,CAAC,kBAAM,CAAC,cAAc,EAAE,kBAAM,CAAC,SAAS,CAAC,CAAC,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/operation.js b/backend/node_modules/mongodb/lib/operations/operation.js
new file mode 100644
index 0000000..9f0e31d
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/operation.js
@@ -0,0 +1,73 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.AbstractOperation = exports.Aspect = void 0;
+exports.defineAspects = defineAspects;
+const bson_1 = require("../bson");
+const read_preference_1 = require("../read_preference");
+exports.Aspect = {
+    READ_OPERATION: Symbol('READ_OPERATION'),
+    WRITE_OPERATION: Symbol('WRITE_OPERATION'),
+    RETRYABLE: Symbol('RETRYABLE'),
+    EXPLAINABLE: Symbol('EXPLAINABLE'),
+    SKIP_COLLATION: Symbol('SKIP_COLLATION'),
+    CURSOR_CREATING: Symbol('CURSOR_CREATING'),
+    MUST_SELECT_SAME_SERVER: Symbol('MUST_SELECT_SAME_SERVER'),
+    COMMAND_BATCHING: Symbol('COMMAND_BATCHING')
+};
+/** @internal */
+const kSession = Symbol('session');
+/**
+ * This class acts as a parent class for any operation and is responsible for setting this.options,
+ * as well as setting and getting a session.
+ * Additionally, this class implements `hasAspect`, which determines whether an operation has
+ * a specific aspect.
+ * @internal
+ */
+class AbstractOperation {
+    constructor(options = {}) {
+        this.readPreference = this.hasAspect(exports.Aspect.WRITE_OPERATION)
+            ? read_preference_1.ReadPreference.primary
+            : (read_preference_1.ReadPreference.fromOptions(options) ?? read_preference_1.ReadPreference.primary);
+        // Pull the BSON serialize options from the already-resolved options
+        this.bsonOptions = (0, bson_1.resolveBSONOptions)(options);
+        this[kSession] = options.session != null ? options.session : undefined;
+        this.options = options;
+        this.bypassPinningCheck = !!options.bypassPinningCheck;
+        this.trySecondaryWrite = false;
+    }
+    hasAspect(aspect) {
+        const ctor = this.constructor;
+        if (ctor.aspects == null) {
+            return false;
+        }
+        return ctor.aspects.has(aspect);
+    }
+    get session() {
+        return this[kSession];
+    }
+    clearSession() {
+        this[kSession] = undefined;
+    }
+    resetBatch() {
+        return true;
+    }
+    get canRetryRead() {
+        return this.hasAspect(exports.Aspect.RETRYABLE) && this.hasAspect(exports.Aspect.READ_OPERATION);
+    }
+    get canRetryWrite() {
+        return this.hasAspect(exports.Aspect.RETRYABLE) && this.hasAspect(exports.Aspect.WRITE_OPERATION);
+    }
+}
+exports.AbstractOperation = AbstractOperation;
+function defineAspects(operation, aspects) {
+    if (!Array.isArray(aspects) && !(aspects instanceof Set)) {
+        aspects = [aspects];
+    }
+    aspects = new Set(aspects);
+    Object.defineProperty(operation, 'aspects', {
+        value: aspects,
+        writable: false
+    });
+    return aspects;
+}
+//# sourceMappingURL=operation.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/operation.js.map b/backend/node_modules/mongodb/lib/operations/operation.js.map
new file mode 100644
index 0000000..b307039
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/operation.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"operation.js","sourceRoot":"","sources":["../../src/operations/operation.ts"],"names":[],"mappings":";;;AAgIA,sCAeC;AA/ID,kCAAuF;AACvF,wDAA6E;AAMhE,QAAA,MAAM,GAAG;IACpB,cAAc,EAAE,MAAM,CAAC,gBAAgB,CAAC;IACxC,eAAe,EAAE,MAAM,CAAC,iBAAiB,CAAC;IAC1C,SAAS,EAAE,MAAM,CAAC,WAAW,CAAC;IAC9B,WAAW,EAAE,MAAM,CAAC,aAAa,CAAC;IAClC,cAAc,EAAE,MAAM,CAAC,gBAAgB,CAAC;IACxC,eAAe,EAAE,MAAM,CAAC,iBAAiB,CAAC;IAC1C,uBAAuB,EAAE,MAAM,CAAC,yBAAyB,CAAC;IAC1D,gBAAgB,EAAE,MAAM,CAAC,kBAAkB,CAAC;CACpC,CAAC;AA4BX,gBAAgB;AAChB,MAAM,QAAQ,GAAG,MAAM,CAAC,SAAS,CAAC,CAAC;AAEnC;;;;;;GAMG;AACH,MAAsB,iBAAiB;IAmBrC,YAAY,UAA4B,EAAE;QACxC,IAAI,CAAC,cAAc,GAAG,IAAI,CAAC,SAAS,CAAC,cAAM,CAAC,eAAe,CAAC;YAC1D,CAAC,CAAC,gCAAc,CAAC,OAAO;YACxB,CAAC,CAAC,CAAC,gCAAc,CAAC,WAAW,CAAC,OAAO,CAAC,IAAI,gCAAc,CAAC,OAAO,CAAC,CAAC;QAEpE,oEAAoE;QACpE,IAAI,CAAC,WAAW,GAAG,IAAA,yBAAkB,EAAC,OAAO,CAAC,CAAC;QAE/C,IAAI,CAAC,QAAQ,CAAC,GAAG,OAAO,CAAC,OAAO,IAAI,IAAI,CAAC,CAAC,CAAC,OAAO,CAAC,OAAO,CAAC,CAAC,CAAC,SAAS,CAAC;QAEvE,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACvB,IAAI,CAAC,kBAAkB,GAAG,CAAC,CAAC,OAAO,CAAC,kBAAkB,CAAC;QACvD,IAAI,CAAC,iBAAiB,GAAG,KAAK,CAAC;IACjC,CAAC;IAYD,SAAS,CAAC,MAAc;QACtB,MAAM,IAAI,GAAG,IAAI,CAAC,WAAwC,CAAC;QAC3D,IAAI,IAAI,CAAC,OAAO,IAAI,IAAI,EAAE,CAAC;YACzB,OAAO,KAAK,CAAC;QACf,CAAC;QAED,OAAO,IAAI,CAAC,OAAO,CAAC,GAAG,CAAC,MAAM,CAAC,CAAC;IAClC,CAAC;IAED,IAAI,OAAO;QACT,OAAO,IAAI,CAAC,QAAQ,CAAC,CAAC;IACxB,CAAC;IAED,YAAY;QACV,IAAI,CAAC,QAAQ,CAAC,GAAG,SAAS,CAAC;IAC7B,CAAC;IAED,UAAU;QACR,OAAO,IAAI,CAAC;IACd,CAAC;IAED,IAAI,YAAY;QACd,OAAO,IAAI,CAAC,SAAS,CAAC,cAAM,CAAC,SAAS,CAAC,IAAI,IAAI,CAAC,SAAS,CAAC,cAAM,CAAC,cAAc,CAAC,CAAC;IACnF,CAAC;IAED,IAAI,aAAa;QACf,OAAO,IAAI,CAAC,SAAS,CAAC,cAAM,CAAC,SAAS,CAAC,IAAI,IAAI,CAAC,SAAS,CAAC,cAAM,CAAC,eAAe,CAAC,CAAC;IACpF,CAAC;CACF;AAxED,8CAwEC;AAED,SAAgB,aAAa,CAC3B,SAAoC,EACpC,OAAwC;IAExC,IAAI,CAAC,KAAK,CAAC,OAAO,CAAC,OAAO,CAAC,IAAI,CAAC,CAAC,OAAO,YAAY,GAAG,CAAC,EAAE,CAAC;QACzD,OAAO,GAAG,CAAC,OAAO,CAAC,CAAC;IACtB,CAAC;IAED,OAAO,GAAG,IAAI,GAAG,CAAC,OAAO,CAAC,CAAC;IAC3B,MAAM,CAAC,cAAc,CAAC,SAAS,EAAE,SAAS,EAAE;QAC1C,KAAK,EAAE,OAAO;QACd,QAAQ,EAAE,KAAK;KAChB,CAAC,CAAC;IAEH,OAAO,OAAO,CAAC;AACjB,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/options_operation.js b/backend/node_modules/mongodb/lib/operations/options_operation.js
new file mode 100644
index 0000000..6cc2492
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/options_operation.js
@@ -0,0 +1,28 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.OptionsOperation = void 0;
+const error_1 = require("../error");
+const operation_1 = require("./operation");
+/** @internal */
+class OptionsOperation extends operation_1.AbstractOperation {
+    constructor(collection, options) {
+        super(options);
+        this.options = options;
+        this.collection = collection;
+    }
+    get commandName() {
+        return 'listCollections';
+    }
+    async execute(server, session) {
+        const coll = this.collection;
+        const [collection] = await coll.s.db
+            .listCollections({ name: coll.collectionName }, { ...this.options, nameOnly: false, readPreference: this.readPreference, session })
+            .toArray();
+        if (collection == null || collection.options == null) {
+            throw new error_1.MongoAPIError(`collection ${coll.namespace} not found`);
+        }
+        return collection.options;
+    }
+}
+exports.OptionsOperation = OptionsOperation;
+//# sourceMappingURL=options_operation.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/options_operation.js.map b/backend/node_modules/mongodb/lib/operations/options_operation.js.map
new file mode 100644
index 0000000..ca4d148
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/options_operation.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"options_operation.js","sourceRoot":"","sources":["../../src/operations/options_operation.ts"],"names":[],"mappings":";;;AAEA,oCAAyC;AAGzC,2CAAuE;AAEvE,gBAAgB;AAChB,MAAa,gBAAiB,SAAQ,6BAA2B;IAI/D,YAAY,UAAsB,EAAE,OAAyB;QAC3D,KAAK,CAAC,OAAO,CAAC,CAAC;QACf,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACvB,IAAI,CAAC,UAAU,GAAG,UAAU,CAAC;IAC/B,CAAC;IACD,IAAa,WAAW;QACtB,OAAO,iBAA0B,CAAC;IACpC,CAAC;IAEQ,KAAK,CAAC,OAAO,CAAC,MAAc,EAAE,OAAkC;QACvE,MAAM,IAAI,GAAG,IAAI,CAAC,UAAU,CAAC;QAC7B,MAAM,CAAC,UAAU,CAAC,GAAG,MAAM,IAAI,CAAC,CAAC,CAAC,EAAE;aACjC,eAAe,CACd,EAAE,IAAI,EAAE,IAAI,CAAC,cAAc,EAAE,EAC7B,EAAE,GAAG,IAAI,CAAC,OAAO,EAAE,QAAQ,EAAE,KAAK,EAAE,cAAc,EAAE,IAAI,CAAC,cAAc,EAAE,OAAO,EAAE,CACnF;aACA,OAAO,EAAE,CAAC;QACb,IAAI,UAAU,IAAI,IAAI,IAAI,UAAU,CAAC,OAAO,IAAI,IAAI,EAAE,CAAC;YACrD,MAAM,IAAI,qBAAa,CAAC,cAAc,IAAI,CAAC,SAAS,YAAY,CAAC,CAAC;QACpE,CAAC;QACD,OAAO,UAAU,CAAC,OAAO,CAAC;IAC5B,CAAC;CACF;AA1BD,4CA0BC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/profiling_level.js b/backend/node_modules/mongodb/lib/operations/profiling_level.js
new file mode 100644
index 0000000..5566a09
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/profiling_level.js
@@ -0,0 +1,33 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ProfilingLevelOperation = void 0;
+const error_1 = require("../error");
+const command_1 = require("./command");
+/** @internal */
+class ProfilingLevelOperation extends command_1.CommandOperation {
+    constructor(db, options) {
+        super(db, options);
+        this.options = options;
+    }
+    get commandName() {
+        return 'profile';
+    }
+    async execute(server, session, timeoutContext) {
+        const doc = await super.executeCommand(server, session, { profile: -1 }, timeoutContext);
+        if (doc.ok === 1) {
+            const was = doc.was;
+            if (was === 0)
+                return 'off';
+            if (was === 1)
+                return 'slow_only';
+            if (was === 2)
+                return 'all';
+            throw new error_1.MongoUnexpectedServerResponseError(`Illegal profiling level value ${was}`);
+        }
+        else {
+            throw new error_1.MongoUnexpectedServerResponseError('Error with profile command');
+        }
+    }
+}
+exports.ProfilingLevelOperation = ProfilingLevelOperation;
+//# sourceMappingURL=profiling_level.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/profiling_level.js.map b/backend/node_modules/mongodb/lib/operations/profiling_level.js.map
new file mode 100644
index 0000000..71bc9d7
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/profiling_level.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"profiling_level.js","sourceRoot":"","sources":["../../src/operations/profiling_level.ts"],"names":[],"mappings":";;;AACA,oCAA8D;AAI9D,uCAA2E;AAK3E,gBAAgB;AAChB,MAAa,uBAAwB,SAAQ,0BAAwB;IAGnE,YAAY,EAAM,EAAE,OAA8B;QAChD,KAAK,CAAC,EAAE,EAAE,OAAO,CAAC,CAAC;QACnB,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;IACzB,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,SAAkB,CAAC;IAC5B,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,GAAG,GAAG,MAAM,KAAK,CAAC,cAAc,CAAC,MAAM,EAAE,OAAO,EAAE,EAAE,OAAO,EAAE,CAAC,CAAC,EAAE,EAAE,cAAc,CAAC,CAAC;QACzF,IAAI,GAAG,CAAC,EAAE,KAAK,CAAC,EAAE,CAAC;YACjB,MAAM,GAAG,GAAG,GAAG,CAAC,GAAG,CAAC;YACpB,IAAI,GAAG,KAAK,CAAC;gBAAE,OAAO,KAAK,CAAC;YAC5B,IAAI,GAAG,KAAK,CAAC;gBAAE,OAAO,WAAW,CAAC;YAClC,IAAI,GAAG,KAAK,CAAC;gBAAE,OAAO,KAAK,CAAC;YAC5B,MAAM,IAAI,0CAAkC,CAAC,iCAAiC,GAAG,EAAE,CAAC,CAAC;QACvF,CAAC;aAAM,CAAC;YACN,MAAM,IAAI,0CAAkC,CAAC,4BAA4B,CAAC,CAAC;QAC7E,CAAC;IACH,CAAC;CACF;AA5BD,0DA4BC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/remove_user.js b/backend/node_modules/mongodb/lib/operations/remove_user.js
new file mode 100644
index 0000000..abdacfe
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/remove_user.js
@@ -0,0 +1,23 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.RemoveUserOperation = void 0;
+const command_1 = require("./command");
+const operation_1 = require("./operation");
+/** @internal */
+class RemoveUserOperation extends command_1.CommandOperation {
+    constructor(db, username, options) {
+        super(db, options);
+        this.options = options;
+        this.username = username;
+    }
+    get commandName() {
+        return 'dropUser';
+    }
+    async execute(server, session, timeoutContext) {
+        await super.executeCommand(server, session, { dropUser: this.username }, timeoutContext);
+        return true;
+    }
+}
+exports.RemoveUserOperation = RemoveUserOperation;
+(0, operation_1.defineAspects)(RemoveUserOperation, [operation_1.Aspect.WRITE_OPERATION]);
+//# sourceMappingURL=remove_user.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/remove_user.js.map b/backend/node_modules/mongodb/lib/operations/remove_user.js.map
new file mode 100644
index 0000000..cd532c8
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/remove_user.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"remove_user.js","sourceRoot":"","sources":["../../src/operations/remove_user.ts"],"names":[],"mappings":";;;AAIA,uCAA2E;AAC3E,2CAAoD;AAKpD,gBAAgB;AAChB,MAAa,mBAAoB,SAAQ,0BAAyB;IAIhE,YAAY,EAAM,EAAE,QAAgB,EAAE,OAA0B;QAC9D,KAAK,CAAC,EAAE,EAAE,OAAO,CAAC,CAAC;QACnB,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACvB,IAAI,CAAC,QAAQ,GAAG,QAAQ,CAAC;IAC3B,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,UAAmB,CAAC;IAC7B,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,KAAK,CAAC,cAAc,CAAC,MAAM,EAAE,OAAO,EAAE,EAAE,QAAQ,EAAE,IAAI,CAAC,QAAQ,EAAE,EAAE,cAAc,CAAC,CAAC;QACzF,OAAO,IAAI,CAAC;IACd,CAAC;CACF;AAtBD,kDAsBC;AAED,IAAA,yBAAa,EAAC,mBAAmB,EAAE,CAAC,kBAAM,CAAC,eAAe,CAAC,CAAC,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/rename.js b/backend/node_modules/mongodb/lib/operations/rename.js
new file mode 100644
index 0000000..5bf864c
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/rename.js
@@ -0,0 +1,36 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.RenameOperation = void 0;
+const collection_1 = require("../collection");
+const utils_1 = require("../utils");
+const command_1 = require("./command");
+const operation_1 = require("./operation");
+/** @internal */
+class RenameOperation extends command_1.CommandOperation {
+    constructor(collection, newName, options) {
+        super(collection, options);
+        this.collection = collection;
+        this.newName = newName;
+        this.options = options;
+        this.ns = new utils_1.MongoDBNamespace('admin', '$cmd');
+    }
+    get commandName() {
+        return 'renameCollection';
+    }
+    async execute(server, session, timeoutContext) {
+        // Build the command
+        const renameCollection = this.collection.namespace;
+        const toCollection = this.collection.s.namespace.withCollection(this.newName).toString();
+        const dropTarget = typeof this.options.dropTarget === 'boolean' ? this.options.dropTarget : false;
+        const command = {
+            renameCollection: renameCollection,
+            to: toCollection,
+            dropTarget: dropTarget
+        };
+        await super.executeCommand(server, session, command, timeoutContext);
+        return new collection_1.Collection(this.collection.s.db, this.newName, this.collection.s.options);
+    }
+}
+exports.RenameOperation = RenameOperation;
+(0, operation_1.defineAspects)(RenameOperation, [operation_1.Aspect.WRITE_OPERATION]);
+//# sourceMappingURL=rename.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/rename.js.map b/backend/node_modules/mongodb/lib/operations/rename.js.map
new file mode 100644
index 0000000..8269b2a
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/rename.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"rename.js","sourceRoot":"","sources":["../../src/operations/rename.ts"],"names":[],"mappings":";;;AACA,8CAA2C;AAI3C,oCAA4C;AAC5C,uCAA2E;AAC3E,2CAAoD;AAUpD,gBAAgB;AAChB,MAAa,eAAgB,SAAQ,0BAA0B;IAC7D,YACS,UAAsB,EACtB,OAAe,EACN,OAAsB;QAEtC,KAAK,CAAC,UAAU,EAAE,OAAO,CAAC,CAAC;QAJpB,eAAU,GAAV,UAAU,CAAY;QACtB,YAAO,GAAP,OAAO,CAAQ;QACN,YAAO,GAAP,OAAO,CAAe;QAGtC,IAAI,CAAC,EAAE,GAAG,IAAI,wBAAgB,CAAC,OAAO,EAAE,MAAM,CAAC,CAAC;IAClD,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,kBAA2B,CAAC;IACrC,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,oBAAoB;QACpB,MAAM,gBAAgB,GAAG,IAAI,CAAC,UAAU,CAAC,SAAS,CAAC;QACnD,MAAM,YAAY,GAAG,IAAI,CAAC,UAAU,CAAC,CAAC,CAAC,SAAS,CAAC,cAAc,CAAC,IAAI,CAAC,OAAO,CAAC,CAAC,QAAQ,EAAE,CAAC;QACzF,MAAM,UAAU,GACd,OAAO,IAAI,CAAC,OAAO,CAAC,UAAU,KAAK,SAAS,CAAC,CAAC,CAAC,IAAI,CAAC,OAAO,CAAC,UAAU,CAAC,CAAC,CAAC,KAAK,CAAC;QAEjF,MAAM,OAAO,GAAG;YACd,gBAAgB,EAAE,gBAAgB;YAClC,EAAE,EAAE,YAAY;YAChB,UAAU,EAAE,UAAU;SACvB,CAAC;QAEF,MAAM,KAAK,CAAC,cAAc,CAAC,MAAM,EAAE,OAAO,EAAE,OAAO,EAAE,cAAc,CAAC,CAAC;QACrE,OAAO,IAAI,uBAAU,CAAC,IAAI,CAAC,UAAU,CAAC,CAAC,CAAC,EAAE,EAAE,IAAI,CAAC,OAAO,EAAE,IAAI,CAAC,UAAU,CAAC,CAAC,CAAC,OAAO,CAAC,CAAC;IACvF,CAAC;CACF;AAlCD,0CAkCC;AAED,IAAA,yBAAa,EAAC,eAAe,EAAE,CAAC,kBAAM,CAAC,eAAe,CAAC,CAAC,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/run_command.js b/backend/node_modules/mongodb/lib/operations/run_command.js
new file mode 100644
index 0000000..6ea41ec
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/run_command.js
@@ -0,0 +1,51 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.RunAdminCommandOperation = exports.RunCommandOperation = void 0;
+const utils_1 = require("../utils");
+const operation_1 = require("./operation");
+/** @internal */
+class RunCommandOperation extends operation_1.AbstractOperation {
+    constructor(parent, command, options) {
+        super(options);
+        this.command = command;
+        this.options = options;
+        this.ns = parent.s.namespace.withCollection('$cmd');
+    }
+    get commandName() {
+        return 'runCommand';
+    }
+    async execute(server, session, timeoutContext) {
+        this.server = server;
+        const res = await server.command(this.ns, this.command, {
+            ...this.options,
+            readPreference: this.readPreference,
+            session,
+            timeoutContext
+        }, this.options.responseType);
+        return res;
+    }
+}
+exports.RunCommandOperation = RunCommandOperation;
+class RunAdminCommandOperation extends operation_1.AbstractOperation {
+    constructor(command, options) {
+        super(options);
+        this.command = command;
+        this.options = options;
+        this.ns = new utils_1.MongoDBNamespace('admin', '$cmd');
+    }
+    get commandName() {
+        return 'runCommand';
+    }
+    async execute(server, session, timeoutContext) {
+        this.server = server;
+        const res = await server.command(this.ns, this.command, {
+            ...this.options,
+            readPreference: this.readPreference,
+            session,
+            timeoutContext
+        });
+        return res;
+    }
+}
+exports.RunAdminCommandOperation = RunAdminCommandOperation;
+//# sourceMappingURL=run_command.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/run_command.js.map b/backend/node_modules/mongodb/lib/operations/run_command.js.map
new file mode 100644
index 0000000..04b8a89
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/run_command.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"run_command.js","sourceRoot":"","sources":["../../src/operations/run_command.ts"],"names":[],"mappings":";;;AAQA,oCAA4C;AAC5C,2CAAgD;AAiBhD,gBAAgB;AAChB,MAAa,mBAAkC,SAAQ,6BAAoB;IACzE,YACE,MAAU,EACH,OAAiB,EACR,OAA0E;QAE1F,KAAK,CAAC,OAAO,CAAC,CAAC;QAHR,YAAO,GAAP,OAAO,CAAU;QACR,YAAO,GAAP,OAAO,CAAmE;QAG1F,IAAI,CAAC,EAAE,GAAG,MAAM,CAAC,CAAC,CAAC,SAAS,CAAC,cAAc,CAAC,MAAM,CAAC,CAAC;IACtD,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,YAAqB,CAAC;IAC/B,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,IAAI,CAAC,MAAM,GAAG,MAAM,CAAC;QACrB,MAAM,GAAG,GAAmB,MAAM,MAAM,CAAC,OAAO,CAC9C,IAAI,CAAC,EAAE,EACP,IAAI,CAAC,OAAO,EACZ;YACE,GAAG,IAAI,CAAC,OAAO;YACf,cAAc,EAAE,IAAI,CAAC,cAAc;YACnC,OAAO;YACP,cAAc;SACf,EACD,IAAI,CAAC,OAAO,CAAC,YAAY,CAC1B,CAAC;QAEF,OAAO,GAAG,CAAC;IACb,CAAC;CACF;AAlCD,kDAkCC;AAED,MAAa,wBAAuC,SAAQ,6BAAoB;IAC9E,YACS,OAAiB,EACR,OAGf;QAED,KAAK,CAAC,OAAO,CAAC,CAAC;QANR,YAAO,GAAP,OAAO,CAAU;QACR,YAAO,GAAP,OAAO,CAGtB;QAGD,IAAI,CAAC,EAAE,GAAG,IAAI,wBAAgB,CAAC,OAAO,EAAE,MAAM,CAAC,CAAC;IAClD,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,YAAqB,CAAC;IAC/B,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,IAAI,CAAC,MAAM,GAAG,MAAM,CAAC;QACrB,MAAM,GAAG,GAAmB,MAAM,MAAM,CAAC,OAAO,CAAC,IAAI,CAAC,EAAE,EAAE,IAAI,CAAC,OAAO,EAAE;YACtE,GAAG,IAAI,CAAC,OAAO;YACf,cAAc,EAAE,IAAI,CAAC,cAAc;YACnC,OAAO;YACP,cAAc;SACf,CAAC,CAAC;QACH,OAAO,GAAG,CAAC;IACb,CAAC;CACF;AA9BD,4DA8BC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/search_indexes/create.js b/backend/node_modules/mongodb/lib/operations/search_indexes/create.js
new file mode 100644
index 0000000..dff96bb
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/search_indexes/create.js
@@ -0,0 +1,30 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.CreateSearchIndexesOperation = void 0;
+const operation_1 = require("../operation");
+/** @internal */
+class CreateSearchIndexesOperation extends operation_1.AbstractOperation {
+    constructor(collection, descriptions) {
+        super();
+        this.collection = collection;
+        this.descriptions = descriptions;
+    }
+    get commandName() {
+        return 'createSearchIndexes';
+    }
+    async execute(server, session, timeoutContext) {
+        const namespace = this.collection.fullNamespace;
+        const command = {
+            createSearchIndexes: namespace.collection,
+            indexes: this.descriptions
+        };
+        const res = await server.command(namespace, command, {
+            session,
+            timeoutContext
+        });
+        const indexesCreated = res?.indexesCreated ?? [];
+        return indexesCreated.map(({ name }) => name);
+    }
+}
+exports.CreateSearchIndexesOperation = CreateSearchIndexesOperation;
+//# sourceMappingURL=create.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/search_indexes/create.js.map b/backend/node_modules/mongodb/lib/operations/search_indexes/create.js.map
new file mode 100644
index 0000000..9eaa8d7
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/search_indexes/create.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"create.js","sourceRoot":"","sources":["../../../src/operations/search_indexes/create.ts"],"names":[],"mappings":";;;AAKA,4CAAiD;AAgBjD,gBAAgB;AAChB,MAAa,4BAA6B,SAAQ,6BAA2B;IAC3E,YACmB,UAAsB,EACtB,YAAmD;QAEpE,KAAK,EAAE,CAAC;QAHS,eAAU,GAAV,UAAU,CAAY;QACtB,iBAAY,GAAZ,YAAY,CAAuC;IAGtE,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,qBAA8B,CAAC;IACxC,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,SAAS,GAAG,IAAI,CAAC,UAAU,CAAC,aAAa,CAAC;QAChD,MAAM,OAAO,GAAG;YACd,mBAAmB,EAAE,SAAS,CAAC,UAAU;YACzC,OAAO,EAAE,IAAI,CAAC,YAAY;SAC3B,CAAC;QAEF,MAAM,GAAG,GAAG,MAAM,MAAM,CAAC,OAAO,CAAC,SAAS,EAAE,OAAO,EAAE;YACnD,OAAO;YACP,cAAc;SACf,CAAC,CAAC;QAEH,MAAM,cAAc,GAA4B,GAAG,EAAE,cAAc,IAAI,EAAE,CAAC;QAC1E,OAAO,cAAc,CAAC,GAAG,CAAC,CAAC,EAAE,IAAI,EAAE,EAAE,EAAE,CAAC,IAAI,CAAC,CAAC;IAChD,CAAC;CACF;AA/BD,oEA+BC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/search_indexes/drop.js b/backend/node_modules/mongodb/lib/operations/search_indexes/drop.js
new file mode 100644
index 0000000..d849844
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/search_indexes/drop.js
@@ -0,0 +1,36 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.DropSearchIndexOperation = void 0;
+const error_1 = require("../../error");
+const operation_1 = require("../operation");
+/** @internal */
+class DropSearchIndexOperation extends operation_1.AbstractOperation {
+    constructor(collection, name) {
+        super();
+        this.collection = collection;
+        this.name = name;
+    }
+    get commandName() {
+        return 'dropSearchIndex';
+    }
+    async execute(server, session, timeoutContext) {
+        const namespace = this.collection.fullNamespace;
+        const command = {
+            dropSearchIndex: namespace.collection
+        };
+        if (typeof this.name === 'string') {
+            command.name = this.name;
+        }
+        try {
+            await server.command(namespace, command, { session, timeoutContext });
+        }
+        catch (error) {
+            const isNamespaceNotFoundError = error instanceof error_1.MongoServerError && error.code === error_1.MONGODB_ERROR_CODES.NamespaceNotFound;
+            if (!isNamespaceNotFoundError) {
+                throw error;
+            }
+        }
+    }
+}
+exports.DropSearchIndexOperation = DropSearchIndexOperation;
+//# sourceMappingURL=drop.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/search_indexes/drop.js.map b/backend/node_modules/mongodb/lib/operations/search_indexes/drop.js.map
new file mode 100644
index 0000000..c503e88
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/search_indexes/drop.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"drop.js","sourceRoot":"","sources":["../../../src/operations/search_indexes/drop.ts"],"names":[],"mappings":";;;AAEA,uCAAoE;AAIpE,4CAAiD;AAEjD,gBAAgB;AAChB,MAAa,wBAAyB,SAAQ,6BAAuB;IACnE,YACmB,UAAsB,EACtB,IAAY;QAE7B,KAAK,EAAE,CAAC;QAHS,eAAU,GAAV,UAAU,CAAY;QACtB,SAAI,GAAJ,IAAI,CAAQ;IAG/B,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,iBAA0B,CAAC;IACpC,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,SAAS,GAAG,IAAI,CAAC,UAAU,CAAC,aAAa,CAAC;QAEhD,MAAM,OAAO,GAAa;YACxB,eAAe,EAAE,SAAS,CAAC,UAAU;SACtC,CAAC;QAEF,IAAI,OAAO,IAAI,CAAC,IAAI,KAAK,QAAQ,EAAE,CAAC;YAClC,OAAO,CAAC,IAAI,GAAG,IAAI,CAAC,IAAI,CAAC;QAC3B,CAAC;QAED,IAAI,CAAC;YACH,MAAM,MAAM,CAAC,OAAO,CAAC,SAAS,EAAE,OAAO,EAAE,EAAE,OAAO,EAAE,cAAc,EAAE,CAAC,CAAC;QACxE,CAAC;QAAC,OAAO,KAAK,EAAE,CAAC;YACf,MAAM,wBAAwB,GAC5B,KAAK,YAAY,wBAAgB,IAAI,KAAK,CAAC,IAAI,KAAK,2BAAmB,CAAC,iBAAiB,CAAC;YAC5F,IAAI,CAAC,wBAAwB,EAAE,CAAC;gBAC9B,MAAM,KAAK,CAAC;YACd,CAAC;QACH,CAAC;IACH,CAAC;CACF;AArCD,4DAqCC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/search_indexes/update.js b/backend/node_modules/mongodb/lib/operations/search_indexes/update.js
new file mode 100644
index 0000000..cd81516
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/search_indexes/update.js
@@ -0,0 +1,28 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.UpdateSearchIndexOperation = void 0;
+const operation_1 = require("../operation");
+/** @internal */
+class UpdateSearchIndexOperation extends operation_1.AbstractOperation {
+    constructor(collection, name, definition) {
+        super();
+        this.collection = collection;
+        this.name = name;
+        this.definition = definition;
+    }
+    get commandName() {
+        return 'updateSearchIndex';
+    }
+    async execute(server, session, timeoutContext) {
+        const namespace = this.collection.fullNamespace;
+        const command = {
+            updateSearchIndex: namespace.collection,
+            name: this.name,
+            definition: this.definition
+        };
+        await server.command(namespace, command, { session, timeoutContext });
+        return;
+    }
+}
+exports.UpdateSearchIndexOperation = UpdateSearchIndexOperation;
+//# sourceMappingURL=update.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/search_indexes/update.js.map b/backend/node_modules/mongodb/lib/operations/search_indexes/update.js.map
new file mode 100644
index 0000000..a31cd62
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/search_indexes/update.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"update.js","sourceRoot":"","sources":["../../../src/operations/search_indexes/update.ts"],"names":[],"mappings":";;;AAKA,4CAAiD;AAEjD,gBAAgB;AAChB,MAAa,0BAA2B,SAAQ,6BAAuB;IACrE,YACmB,UAAsB,EACtB,IAAY,EACZ,UAAoB;QAErC,KAAK,EAAE,CAAC;QAJS,eAAU,GAAV,UAAU,CAAY;QACtB,SAAI,GAAJ,IAAI,CAAQ;QACZ,eAAU,GAAV,UAAU,CAAU;IAGvC,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,mBAA4B,CAAC;IACtC,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,SAAS,GAAG,IAAI,CAAC,UAAU,CAAC,aAAa,CAAC;QAChD,MAAM,OAAO,GAAG;YACd,iBAAiB,EAAE,SAAS,CAAC,UAAU;YACvC,IAAI,EAAE,IAAI,CAAC,IAAI;YACf,UAAU,EAAE,IAAI,CAAC,UAAU;SAC5B,CAAC;QAEF,MAAM,MAAM,CAAC,OAAO,CAAC,SAAS,EAAE,OAAO,EAAE,EAAE,OAAO,EAAE,cAAc,EAAE,CAAC,CAAC;QACtE,OAAO;IACT,CAAC;CACF;AA5BD,gEA4BC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/set_profiling_level.js b/backend/node_modules/mongodb/lib/operations/set_profiling_level.js
new file mode 100644
index 0000000..bbc07fa
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/set_profiling_level.js
@@ -0,0 +1,49 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.SetProfilingLevelOperation = exports.ProfilingLevel = void 0;
+const error_1 = require("../error");
+const utils_1 = require("../utils");
+const command_1 = require("./command");
+const levelValues = new Set(['off', 'slow_only', 'all']);
+/** @public */
+exports.ProfilingLevel = Object.freeze({
+    off: 'off',
+    slowOnly: 'slow_only',
+    all: 'all'
+});
+/** @internal */
+class SetProfilingLevelOperation extends command_1.CommandOperation {
+    constructor(db, level, options) {
+        super(db, options);
+        this.options = options;
+        switch (level) {
+            case exports.ProfilingLevel.off:
+                this.profile = 0;
+                break;
+            case exports.ProfilingLevel.slowOnly:
+                this.profile = 1;
+                break;
+            case exports.ProfilingLevel.all:
+                this.profile = 2;
+                break;
+            default:
+                this.profile = 0;
+                break;
+        }
+        this.level = level;
+    }
+    get commandName() {
+        return 'profile';
+    }
+    async execute(server, session, timeoutContext) {
+        const level = this.level;
+        if (!levelValues.has(level)) {
+            throw new error_1.MongoInvalidArgumentError(`Profiling level must be one of "${(0, utils_1.enumToString)(exports.ProfilingLevel)}"`);
+        }
+        // TODO(NODE-3483): Determine error to put here
+        await super.executeCommand(server, session, { profile: this.profile }, timeoutContext);
+        return level;
+    }
+}
+exports.SetProfilingLevelOperation = SetProfilingLevelOperation;
+//# sourceMappingURL=set_profiling_level.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/set_profiling_level.js.map b/backend/node_modules/mongodb/lib/operations/set_profiling_level.js.map
new file mode 100644
index 0000000..8201ab8
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/set_profiling_level.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"set_profiling_level.js","sourceRoot":"","sources":["../../src/operations/set_profiling_level.ts"],"names":[],"mappings":";;;AACA,oCAAqD;AAIrD,oCAAwC;AACxC,uCAA2E;AAE3E,MAAM,WAAW,GAAG,IAAI,GAAG,CAAC,CAAC,KAAK,EAAE,WAAW,EAAE,KAAK,CAAC,CAAC,CAAC;AAEzD,cAAc;AACD,QAAA,cAAc,GAAG,MAAM,CAAC,MAAM,CAAC;IAC1C,GAAG,EAAE,KAAK;IACV,QAAQ,EAAE,WAAW;IACrB,GAAG,EAAE,KAAK;CACF,CAAC,CAAC;AAQZ,gBAAgB;AAChB,MAAa,0BAA2B,SAAQ,0BAAgC;IAK9E,YAAY,EAAM,EAAE,KAAqB,EAAE,OAAiC;QAC1E,KAAK,CAAC,EAAE,EAAE,OAAO,CAAC,CAAC;QACnB,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACvB,QAAQ,KAAK,EAAE,CAAC;YACd,KAAK,sBAAc,CAAC,GAAG;gBACrB,IAAI,CAAC,OAAO,GAAG,CAAC,CAAC;gBACjB,MAAM;YACR,KAAK,sBAAc,CAAC,QAAQ;gBAC1B,IAAI,CAAC,OAAO,GAAG,CAAC,CAAC;gBACjB,MAAM;YACR,KAAK,sBAAc,CAAC,GAAG;gBACrB,IAAI,CAAC,OAAO,GAAG,CAAC,CAAC;gBACjB,MAAM;YACR;gBACE,IAAI,CAAC,OAAO,GAAG,CAAC,CAAC;gBACjB,MAAM;QACV,CAAC;QAED,IAAI,CAAC,KAAK,GAAG,KAAK,CAAC;IACrB,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,SAAkB,CAAC;IAC5B,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,KAAK,GAAG,IAAI,CAAC,KAAK,CAAC;QAEzB,IAAI,CAAC,WAAW,CAAC,GAAG,CAAC,KAAK,CAAC,EAAE,CAAC;YAC5B,MAAM,IAAI,iCAAyB,CACjC,mCAAmC,IAAA,oBAAY,EAAC,sBAAc,CAAC,GAAG,CACnE,CAAC;QACJ,CAAC;QAED,+CAA+C;QAC/C,MAAM,KAAK,CAAC,cAAc,CAAC,MAAM,EAAE,OAAO,EAAE,EAAE,OAAO,EAAE,IAAI,CAAC,OAAO,EAAE,EAAE,cAAc,CAAC,CAAC;QACvF,OAAO,KAAK,CAAC;IACf,CAAC;CACF;AA/CD,gEA+CC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/stats.js b/backend/node_modules/mongodb/lib/operations/stats.js
new file mode 100644
index 0000000..0f28d77
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/stats.js
@@ -0,0 +1,25 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.DbStatsOperation = void 0;
+const command_1 = require("./command");
+const operation_1 = require("./operation");
+/** @internal */
+class DbStatsOperation extends command_1.CommandOperation {
+    constructor(db, options) {
+        super(db, options);
+        this.options = options;
+    }
+    get commandName() {
+        return 'dbStats';
+    }
+    async execute(server, session, timeoutContext) {
+        const command = { dbStats: true };
+        if (this.options.scale != null) {
+            command.scale = this.options.scale;
+        }
+        return await super.executeCommand(server, session, command, timeoutContext);
+    }
+}
+exports.DbStatsOperation = DbStatsOperation;
+(0, operation_1.defineAspects)(DbStatsOperation, [operation_1.Aspect.READ_OPERATION]);
+//# sourceMappingURL=stats.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/stats.js.map b/backend/node_modules/mongodb/lib/operations/stats.js.map
new file mode 100644
index 0000000..dda491e
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/stats.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"stats.js","sourceRoot":"","sources":["../../src/operations/stats.ts"],"names":[],"mappings":";;;AAKA,uCAA2E;AAC3E,2CAAoD;AAQpD,gBAAgB;AAChB,MAAa,gBAAiB,SAAQ,0BAA0B;IAG9D,YAAY,EAAM,EAAE,OAAuB;QACzC,KAAK,CAAC,EAAE,EAAE,OAAO,CAAC,CAAC;QACnB,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;IACzB,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,SAAkB,CAAC;IAC5B,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,OAAO,GAAa,EAAE,OAAO,EAAE,IAAI,EAAE,CAAC;QAC5C,IAAI,IAAI,CAAC,OAAO,CAAC,KAAK,IAAI,IAAI,EAAE,CAAC;YAC/B,OAAO,CAAC,KAAK,GAAG,IAAI,CAAC,OAAO,CAAC,KAAK,CAAC;QACrC,CAAC;QAED,OAAO,MAAM,KAAK,CAAC,cAAc,CAAC,MAAM,EAAE,OAAO,EAAE,OAAO,EAAE,cAAc,CAAC,CAAC;IAC9E,CAAC;CACF;AAxBD,4CAwBC;AAED,IAAA,yBAAa,EAAC,gBAAgB,EAAE,CAAC,kBAAM,CAAC,cAAc,CAAC,CAAC,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/update.js b/backend/node_modules/mongodb/lib/operations/update.js
new file mode 100644
index 0000000..eab5249
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/update.js
@@ -0,0 +1,180 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ReplaceOneOperation = exports.UpdateManyOperation = exports.UpdateOneOperation = exports.UpdateOperation = void 0;
+exports.makeUpdateStatement = makeUpdateStatement;
+const error_1 = require("../error");
+const utils_1 = require("../utils");
+const command_1 = require("./command");
+const operation_1 = require("./operation");
+/**
+ * @internal
+ * UpdateOperation is used in bulk write, while UpdateOneOperation and UpdateManyOperation are only used in the collections API
+ */
+class UpdateOperation extends command_1.CommandOperation {
+    constructor(ns, statements, options) {
+        super(undefined, options);
+        this.options = options;
+        this.ns = ns;
+        this.statements = statements;
+    }
+    get commandName() {
+        return 'update';
+    }
+    get canRetryWrite() {
+        if (super.canRetryWrite === false) {
+            return false;
+        }
+        return this.statements.every(op => op.multi == null || op.multi === false);
+    }
+    async execute(server, session, timeoutContext) {
+        const options = this.options ?? {};
+        const ordered = typeof options.ordered === 'boolean' ? options.ordered : true;
+        const command = {
+            update: this.ns.collection,
+            updates: this.statements,
+            ordered
+        };
+        if (typeof options.bypassDocumentValidation === 'boolean') {
+            command.bypassDocumentValidation = options.bypassDocumentValidation;
+        }
+        if (options.let) {
+            command.let = options.let;
+        }
+        // we check for undefined specifically here to allow falsy values
+        // eslint-disable-next-line no-restricted-syntax
+        if (options.comment !== undefined) {
+            command.comment = options.comment;
+        }
+        const unacknowledgedWrite = this.writeConcern && this.writeConcern.w === 0;
+        if (unacknowledgedWrite) {
+            if (this.statements.find((o) => o.hint)) {
+                // TODO(NODE-3541): fix error for hint with unacknowledged writes
+                throw new error_1.MongoCompatibilityError(`hint is not supported with unacknowledged writes`);
+            }
+        }
+        const res = await super.executeCommand(server, session, command, timeoutContext);
+        return res;
+    }
+}
+exports.UpdateOperation = UpdateOperation;
+/** @internal */
+class UpdateOneOperation extends UpdateOperation {
+    constructor(collection, filter, update, options) {
+        super(collection.s.namespace, [makeUpdateStatement(filter, update, { ...options, multi: false })], options);
+        if (!(0, utils_1.hasAtomicOperators)(update)) {
+            throw new error_1.MongoInvalidArgumentError('Update document requires atomic operators');
+        }
+    }
+    async execute(server, session, timeoutContext) {
+        const res = await super.execute(server, session, timeoutContext);
+        if (this.explain != null)
+            return res;
+        if (res.code)
+            throw new error_1.MongoServerError(res);
+        if (res.writeErrors)
+            throw new error_1.MongoServerError(res.writeErrors[0]);
+        return {
+            acknowledged: this.writeConcern?.w !== 0,
+            modifiedCount: res.nModified ?? res.n,
+            upsertedId: Array.isArray(res.upserted) && res.upserted.length > 0 ? res.upserted[0]._id : null,
+            upsertedCount: Array.isArray(res.upserted) && res.upserted.length ? res.upserted.length : 0,
+            matchedCount: Array.isArray(res.upserted) && res.upserted.length > 0 ? 0 : res.n
+        };
+    }
+}
+exports.UpdateOneOperation = UpdateOneOperation;
+/** @internal */
+class UpdateManyOperation extends UpdateOperation {
+    constructor(collection, filter, update, options) {
+        super(collection.s.namespace, [makeUpdateStatement(filter, update, { ...options, multi: true })], options);
+        if (!(0, utils_1.hasAtomicOperators)(update)) {
+            throw new error_1.MongoInvalidArgumentError('Update document requires atomic operators');
+        }
+    }
+    async execute(server, session, timeoutContext) {
+        const res = await super.execute(server, session, timeoutContext);
+        if (this.explain != null)
+            return res;
+        if (res.code)
+            throw new error_1.MongoServerError(res);
+        if (res.writeErrors)
+            throw new error_1.MongoServerError(res.writeErrors[0]);
+        return {
+            acknowledged: this.writeConcern?.w !== 0,
+            modifiedCount: res.nModified ?? res.n,
+            upsertedId: Array.isArray(res.upserted) && res.upserted.length > 0 ? res.upserted[0]._id : null,
+            upsertedCount: Array.isArray(res.upserted) && res.upserted.length ? res.upserted.length : 0,
+            matchedCount: Array.isArray(res.upserted) && res.upserted.length > 0 ? 0 : res.n
+        };
+    }
+}
+exports.UpdateManyOperation = UpdateManyOperation;
+/** @internal */
+class ReplaceOneOperation extends UpdateOperation {
+    constructor(collection, filter, replacement, options) {
+        super(collection.s.namespace, [makeUpdateStatement(filter, replacement, { ...options, multi: false })], options);
+        if ((0, utils_1.hasAtomicOperators)(replacement)) {
+            throw new error_1.MongoInvalidArgumentError('Replacement document must not contain atomic operators');
+        }
+    }
+    async execute(server, session, timeoutContext) {
+        const res = await super.execute(server, session, timeoutContext);
+        if (this.explain != null)
+            return res;
+        if (res.code)
+            throw new error_1.MongoServerError(res);
+        if (res.writeErrors)
+            throw new error_1.MongoServerError(res.writeErrors[0]);
+        return {
+            acknowledged: this.writeConcern?.w !== 0,
+            modifiedCount: res.nModified ?? res.n,
+            upsertedId: Array.isArray(res.upserted) && res.upserted.length > 0 ? res.upserted[0]._id : null,
+            upsertedCount: Array.isArray(res.upserted) && res.upserted.length ? res.upserted.length : 0,
+            matchedCount: Array.isArray(res.upserted) && res.upserted.length > 0 ? 0 : res.n
+        };
+    }
+}
+exports.ReplaceOneOperation = ReplaceOneOperation;
+function makeUpdateStatement(filter, update, options) {
+    if (filter == null || typeof filter !== 'object') {
+        throw new error_1.MongoInvalidArgumentError('Selector must be a valid JavaScript object');
+    }
+    if (update == null || typeof update !== 'object') {
+        throw new error_1.MongoInvalidArgumentError('Document must be a valid JavaScript object');
+    }
+    const op = { q: filter, u: update };
+    if (typeof options.upsert === 'boolean') {
+        op.upsert = options.upsert;
+    }
+    if (options.multi) {
+        op.multi = options.multi;
+    }
+    if (options.hint) {
+        op.hint = options.hint;
+    }
+    if (options.arrayFilters) {
+        op.arrayFilters = options.arrayFilters;
+    }
+    if (options.collation) {
+        op.collation = options.collation;
+    }
+    return op;
+}
+(0, operation_1.defineAspects)(UpdateOperation, [operation_1.Aspect.RETRYABLE, operation_1.Aspect.WRITE_OPERATION, operation_1.Aspect.SKIP_COLLATION]);
+(0, operation_1.defineAspects)(UpdateOneOperation, [
+    operation_1.Aspect.RETRYABLE,
+    operation_1.Aspect.WRITE_OPERATION,
+    operation_1.Aspect.EXPLAINABLE,
+    operation_1.Aspect.SKIP_COLLATION
+]);
+(0, operation_1.defineAspects)(UpdateManyOperation, [
+    operation_1.Aspect.WRITE_OPERATION,
+    operation_1.Aspect.EXPLAINABLE,
+    operation_1.Aspect.SKIP_COLLATION
+]);
+(0, operation_1.defineAspects)(ReplaceOneOperation, [
+    operation_1.Aspect.RETRYABLE,
+    operation_1.Aspect.WRITE_OPERATION,
+    operation_1.Aspect.SKIP_COLLATION
+]);
+//# sourceMappingURL=update.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/update.js.map b/backend/node_modules/mongodb/lib/operations/update.js.map
new file mode 100644
index 0000000..092d858
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/update.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"update.js","sourceRoot":"","sources":["../../src/operations/update.ts"],"names":[],"mappings":";;;AAkQA,kDAmCC;AAnSD,oCAAgG;AAKhG,oCAAqE;AACrE,uCAAkG;AAClG,2CAA+D;AAqD/D;;;GAGG;AACH,MAAa,eAAgB,SAAQ,0BAA0B;IAI7D,YACE,EAAoB,EACpB,UAA6B,EAC7B,OAA8C;QAE9C,KAAK,CAAC,SAAS,EAAE,OAAO,CAAC,CAAC;QAC1B,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACvB,IAAI,CAAC,EAAE,GAAG,EAAE,CAAC;QAEb,IAAI,CAAC,UAAU,GAAG,UAAU,CAAC;IAC/B,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,QAAiB,CAAC;IAC3B,CAAC;IAED,IAAa,aAAa;QACxB,IAAI,KAAK,CAAC,aAAa,KAAK,KAAK,EAAE,CAAC;YAClC,OAAO,KAAK,CAAC;QACf,CAAC;QAED,OAAO,IAAI,CAAC,UAAU,CAAC,KAAK,CAAC,EAAE,CAAC,EAAE,CAAC,EAAE,CAAC,KAAK,IAAI,IAAI,IAAI,EAAE,CAAC,KAAK,KAAK,KAAK,CAAC,CAAC;IAC7E,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,OAAO,GAAG,IAAI,CAAC,OAAO,IAAI,EAAE,CAAC;QACnC,MAAM,OAAO,GAAG,OAAO,OAAO,CAAC,OAAO,KAAK,SAAS,CAAC,CAAC,CAAC,OAAO,CAAC,OAAO,CAAC,CAAC,CAAC,IAAI,CAAC;QAC9E,MAAM,OAAO,GAAa;YACxB,MAAM,EAAE,IAAI,CAAC,EAAE,CAAC,UAAU;YAC1B,OAAO,EAAE,IAAI,CAAC,UAAU;YACxB,OAAO;SACR,CAAC;QAEF,IAAI,OAAO,OAAO,CAAC,wBAAwB,KAAK,SAAS,EAAE,CAAC;YAC1D,OAAO,CAAC,wBAAwB,GAAG,OAAO,CAAC,wBAAwB,CAAC;QACtE,CAAC;QAED,IAAI,OAAO,CAAC,GAAG,EAAE,CAAC;YAChB,OAAO,CAAC,GAAG,GAAG,OAAO,CAAC,GAAG,CAAC;QAC5B,CAAC;QAED,iEAAiE;QACjE,gDAAgD;QAChD,IAAI,OAAO,CAAC,OAAO,KAAK,SAAS,EAAE,CAAC;YAClC,OAAO,CAAC,OAAO,GAAG,OAAO,CAAC,OAAO,CAAC;QACpC,CAAC;QAED,MAAM,mBAAmB,GAAG,IAAI,CAAC,YAAY,IAAI,IAAI,CAAC,YAAY,CAAC,CAAC,KAAK,CAAC,CAAC;QAC3E,IAAI,mBAAmB,EAAE,CAAC;YACxB,IAAI,IAAI,CAAC,UAAU,CAAC,IAAI,CAAC,CAAC,CAAW,EAAE,EAAE,CAAC,CAAC,CAAC,IAAI,CAAC,EAAE,CAAC;gBAClD,iEAAiE;gBACjE,MAAM,IAAI,+BAAuB,CAAC,kDAAkD,CAAC,CAAC;YACxF,CAAC;QACH,CAAC;QAED,MAAM,GAAG,GAAG,MAAM,KAAK,CAAC,cAAc,CAAC,MAAM,EAAE,OAAO,EAAE,OAAO,EAAE,cAAc,CAAC,CAAC;QACjF,OAAO,GAAG,CAAC;IACb,CAAC;CACF;AAlED,0CAkEC;AAED,gBAAgB;AAChB,MAAa,kBAAmB,SAAQ,eAAe;IACrD,YAAY,UAAsB,EAAE,MAAgB,EAAE,MAAgB,EAAE,OAAsB;QAC5F,KAAK,CACH,UAAU,CAAC,CAAC,CAAC,SAAS,EACtB,CAAC,mBAAmB,CAAC,MAAM,EAAE,MAAM,EAAE,EAAE,GAAG,OAAO,EAAE,KAAK,EAAE,KAAK,EAAE,CAAC,CAAC,EACnE,OAAO,CACR,CAAC;QAEF,IAAI,CAAC,IAAA,0BAAkB,EAAC,MAAM,CAAC,EAAE,CAAC;YAChC,MAAM,IAAI,iCAAyB,CAAC,2CAA2C,CAAC,CAAC;QACnF,CAAC;IACH,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,GAAG,GAAmB,MAAM,KAAK,CAAC,OAAO,CAAC,MAAM,EAAE,OAAO,EAAE,cAAc,CAAC,CAAC;QACjF,IAAI,IAAI,CAAC,OAAO,IAAI,IAAI;YAAE,OAAO,GAAG,CAAC;QACrC,IAAI,GAAG,CAAC,IAAI;YAAE,MAAM,IAAI,wBAAgB,CAAC,GAAG,CAAC,CAAC;QAC9C,IAAI,GAAG,CAAC,WAAW;YAAE,MAAM,IAAI,wBAAgB,CAAC,GAAG,CAAC,WAAW,CAAC,CAAC,CAAC,CAAC,CAAC;QAEpE,OAAO;YACL,YAAY,EAAE,IAAI,CAAC,YAAY,EAAE,CAAC,KAAK,CAAC;YACxC,aAAa,EAAE,GAAG,CAAC,SAAS,IAAI,GAAG,CAAC,CAAC;YACrC,UAAU,EACR,KAAK,CAAC,OAAO,CAAC,GAAG,CAAC,QAAQ,CAAC,IAAI,GAAG,CAAC,QAAQ,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC,CAAC,GAAG,CAAC,QAAQ,CAAC,CAAC,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC,IAAI;YACrF,aAAa,EAAE,KAAK,CAAC,OAAO,CAAC,GAAG,CAAC,QAAQ,CAAC,IAAI,GAAG,CAAC,QAAQ,CAAC,MAAM,CAAC,CAAC,CAAC,GAAG,CAAC,QAAQ,CAAC,MAAM,CAAC,CAAC,CAAC,CAAC;YAC3F,YAAY,EAAE,KAAK,CAAC,OAAO,CAAC,GAAG,CAAC,QAAQ,CAAC,IAAI,GAAG,CAAC,QAAQ,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,GAAG,CAAC,CAAC;SACjF,CAAC;IACJ,CAAC;CACF;AAhCD,gDAgCC;AAED,gBAAgB;AAChB,MAAa,mBAAoB,SAAQ,eAAe;IACtD,YAAY,UAAsB,EAAE,MAAgB,EAAE,MAAgB,EAAE,OAAsB;QAC5F,KAAK,CACH,UAAU,CAAC,CAAC,CAAC,SAAS,EACtB,CAAC,mBAAmB,CAAC,MAAM,EAAE,MAAM,EAAE,EAAE,GAAG,OAAO,EAAE,KAAK,EAAE,IAAI,EAAE,CAAC,CAAC,EAClE,OAAO,CACR,CAAC;QAEF,IAAI,CAAC,IAAA,0BAAkB,EAAC,MAAM,CAAC,EAAE,CAAC;YAChC,MAAM,IAAI,iCAAyB,CAAC,2CAA2C,CAAC,CAAC;QACnF,CAAC;IACH,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,GAAG,GAAmB,MAAM,KAAK,CAAC,OAAO,CAAC,MAAM,EAAE,OAAO,EAAE,cAAc,CAAC,CAAC;QACjF,IAAI,IAAI,CAAC,OAAO,IAAI,IAAI;YAAE,OAAO,GAAG,CAAC;QACrC,IAAI,GAAG,CAAC,IAAI;YAAE,MAAM,IAAI,wBAAgB,CAAC,GAAG,CAAC,CAAC;QAC9C,IAAI,GAAG,CAAC,WAAW;YAAE,MAAM,IAAI,wBAAgB,CAAC,GAAG,CAAC,WAAW,CAAC,CAAC,CAAC,CAAC,CAAC;QAEpE,OAAO;YACL,YAAY,EAAE,IAAI,CAAC,YAAY,EAAE,CAAC,KAAK,CAAC;YACxC,aAAa,EAAE,GAAG,CAAC,SAAS,IAAI,GAAG,CAAC,CAAC;YACrC,UAAU,EACR,KAAK,CAAC,OAAO,CAAC,GAAG,CAAC,QAAQ,CAAC,IAAI,GAAG,CAAC,QAAQ,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC,CAAC,GAAG,CAAC,QAAQ,CAAC,CAAC,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC,IAAI;YACrF,aAAa,EAAE,KAAK,CAAC,OAAO,CAAC,GAAG,CAAC,QAAQ,CAAC,IAAI,GAAG,CAAC,QAAQ,CAAC,MAAM,CAAC,CAAC,CAAC,GAAG,CAAC,QAAQ,CAAC,MAAM,CAAC,CAAC,CAAC,CAAC;YAC3F,YAAY,EAAE,KAAK,CAAC,OAAO,CAAC,GAAG,CAAC,QAAQ,CAAC,IAAI,GAAG,CAAC,QAAQ,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,GAAG,CAAC,CAAC;SACjF,CAAC;IACJ,CAAC;CACF;AAhCD,kDAgCC;AAgBD,gBAAgB;AAChB,MAAa,mBAAoB,SAAQ,eAAe;IACtD,YACE,UAAsB,EACtB,MAAgB,EAChB,WAAqB,EACrB,OAAuB;QAEvB,KAAK,CACH,UAAU,CAAC,CAAC,CAAC,SAAS,EACtB,CAAC,mBAAmB,CAAC,MAAM,EAAE,WAAW,EAAE,EAAE,GAAG,OAAO,EAAE,KAAK,EAAE,KAAK,EAAE,CAAC,CAAC,EACxE,OAAO,CACR,CAAC;QAEF,IAAI,IAAA,0BAAkB,EAAC,WAAW,CAAC,EAAE,CAAC;YACpC,MAAM,IAAI,iCAAyB,CAAC,wDAAwD,CAAC,CAAC;QAChG,CAAC;IACH,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,GAAG,GAAmB,MAAM,KAAK,CAAC,OAAO,CAAC,MAAM,EAAE,OAAO,EAAE,cAAc,CAAC,CAAC;QACjF,IAAI,IAAI,CAAC,OAAO,IAAI,IAAI;YAAE,OAAO,GAAG,CAAC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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/validate_collection.js b/backend/node_modules/mongodb/lib/operations/validate_collection.js
new file mode 100644
index 0000000..be5f657
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/validate_collection.js
@@ -0,0 +1,38 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ValidateCollectionOperation = void 0;
+const error_1 = require("../error");
+const command_1 = require("./command");
+/** @internal */
+class ValidateCollectionOperation extends command_1.CommandOperation {
+    constructor(admin, collectionName, options) {
+        // Decorate command with extra options
+        const command = { validate: collectionName };
+        const keys = Object.keys(options);
+        for (let i = 0; i < keys.length; i++) {
+            if (Object.prototype.hasOwnProperty.call(options, keys[i]) && keys[i] !== 'session') {
+                command[keys[i]] = options[keys[i]];
+            }
+        }
+        super(admin.s.db, options);
+        this.options = options;
+        this.command = command;
+        this.collectionName = collectionName;
+    }
+    get commandName() {
+        return 'validate';
+    }
+    async execute(server, session, timeoutContext) {
+        const collectionName = this.collectionName;
+        const doc = await super.executeCommand(server, session, this.command, timeoutContext);
+        if (doc.result != null && typeof doc.result !== 'string')
+            throw new error_1.MongoUnexpectedServerResponseError('Error with validation data');
+        if (doc.result != null && doc.result.match(/exception|corrupt/) != null)
+            throw new error_1.MongoUnexpectedServerResponseError(`Invalid collection ${collectionName}`);
+        if (doc.valid != null && !doc.valid)
+            throw new error_1.MongoUnexpectedServerResponseError(`Invalid collection ${collectionName}`);
+        return doc;
+    }
+}
+exports.ValidateCollectionOperation = ValidateCollectionOperation;
+//# sourceMappingURL=validate_collection.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/operations/validate_collection.js.map b/backend/node_modules/mongodb/lib/operations/validate_collection.js.map
new file mode 100644
index 0000000..a3b405d
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/operations/validate_collection.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"validate_collection.js","sourceRoot":"","sources":["../../src/operations/validate_collection.ts"],"names":[],"mappings":";;;AAEA,oCAA8D;AAI9D,uCAA2E;AAQ3E,gBAAgB;AAChB,MAAa,2BAA4B,SAAQ,0BAA0B;IAKzE,YAAY,KAAY,EAAE,cAAsB,EAAE,OAAkC;QAClF,sCAAsC;QACtC,MAAM,OAAO,GAAa,EAAE,QAAQ,EAAE,cAAc,EAAE,CAAC;QACvD,MAAM,IAAI,GAAG,MAAM,CAAC,IAAI,CAAC,OAAO,CAAC,CAAC;QAClC,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,IAAI,CAAC,MAAM,EAAE,CAAC,EAAE,EAAE,CAAC;YACrC,IAAI,MAAM,CAAC,SAAS,CAAC,cAAc,CAAC,IAAI,CAAC,OAAO,EAAE,IAAI,CAAC,CAAC,CAAC,CAAC,IAAI,IAAI,CAAC,CAAC,CAAC,KAAK,SAAS,EAAE,CAAC;gBACpF,OAAO,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC,GAAI,OAAoB,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC;YACpD,CAAC;QACH,CAAC;QAED,KAAK,CAAC,KAAK,CAAC,CAAC,CAAC,EAAE,EAAE,OAAO,CAAC,CAAC;QAC3B,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACvB,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACvB,IAAI,CAAC,cAAc,GAAG,cAAc,CAAC;IACvC,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,UAAmB,CAAC;IAC7B,CAAC;IAEQ,KAAK,CAAC,OAAO,CACpB,MAAc,EACd,OAAkC,EAClC,cAA8B;QAE9B,MAAM,cAAc,GAAG,IAAI,CAAC,cAAc,CAAC;QAE3C,MAAM,GAAG,GAAG,MAAM,KAAK,CAAC,cAAc,CAAC,MAAM,EAAE,OAAO,EAAE,IAAI,CAAC,OAAO,EAAE,cAAc,CAAC,CAAC;QACtF,IAAI,GAAG,CAAC,MAAM,IAAI,IAAI,IAAI,OAAO,GAAG,CAAC,MAAM,KAAK,QAAQ;YACtD,MAAM,IAAI,0CAAkC,CAAC,4BAA4B,CAAC,CAAC;QAC7E,IAAI,GAAG,CAAC,MAAM,IAAI,IAAI,IAAI,GAAG,CAAC,MAAM,CAAC,KAAK,CAAC,mBAAmB,CAAC,IAAI,IAAI;YACrE,MAAM,IAAI,0CAAkC,CAAC,sBAAsB,cAAc,EAAE,CAAC,CAAC;QACvF,IAAI,GAAG,CAAC,KAAK,IAAI,IAAI,IAAI,CAAC,GAAG,CAAC,KAAK;YACjC,MAAM,IAAI,0CAAkC,CAAC,sBAAsB,cAAc,EAAE,CAAC,CAAC;QAEvF,OAAO,GAAG,CAAC;IACb,CAAC;CACF;AA1CD,kEA0CC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/read_concern.js b/backend/node_modules/mongodb/lib/read_concern.js
new file mode 100644
index 0000000..a345e71
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/read_concern.js
@@ -0,0 +1,73 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ReadConcern = exports.ReadConcernLevel = void 0;
+/** @public */
+exports.ReadConcernLevel = Object.freeze({
+    local: 'local',
+    majority: 'majority',
+    linearizable: 'linearizable',
+    available: 'available',
+    snapshot: 'snapshot'
+});
+/**
+ * The MongoDB ReadConcern, which allows for control of the consistency and isolation properties
+ * of the data read from replica sets and replica set shards.
+ * @public
+ *
+ * @see https://www.mongodb.com/docs/manual/reference/read-concern/index.html
+ */
+class ReadConcern {
+    /** Constructs a ReadConcern from the read concern level.*/
+    constructor(level) {
+        /**
+         * A spec test exists that allows level to be any string.
+         * "invalid readConcern with out stage"
+         * @see ./test/spec/crud/v2/aggregate-out-readConcern.json
+         * @see https://github.com/mongodb/specifications/blob/master/source/read-write-concern/read-write-concern.md#unknown-levels-and-additional-options-for-string-based-readconcerns
+         */
+        this.level = exports.ReadConcernLevel[level] ?? level;
+    }
+    /**
+     * Construct a ReadConcern given an options object.
+     *
+     * @param options - The options object from which to extract the write concern.
+     */
+    static fromOptions(options) {
+        if (options == null) {
+            return;
+        }
+        if (options.readConcern) {
+            const { readConcern } = options;
+            if (readConcern instanceof ReadConcern) {
+                return readConcern;
+            }
+            else if (typeof readConcern === 'string') {
+                return new ReadConcern(readConcern);
+            }
+            else if ('level' in readConcern && readConcern.level) {
+                return new ReadConcern(readConcern.level);
+            }
+        }
+        if (options.level) {
+            return new ReadConcern(options.level);
+        }
+        return;
+    }
+    static get MAJORITY() {
+        return exports.ReadConcernLevel.majority;
+    }
+    static get AVAILABLE() {
+        return exports.ReadConcernLevel.available;
+    }
+    static get LINEARIZABLE() {
+        return exports.ReadConcernLevel.linearizable;
+    }
+    static get SNAPSHOT() {
+        return exports.ReadConcernLevel.snapshot;
+    }
+    toJSON() {
+        return { level: this.level };
+    }
+}
+exports.ReadConcern = ReadConcern;
+//# sourceMappingURL=read_concern.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/read_concern.js.map b/backend/node_modules/mongodb/lib/read_concern.js.map
new file mode 100644
index 0000000..8a31c55
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/read_concern.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"read_concern.js","sourceRoot":"","sources":["../src/read_concern.ts"],"names":[],"mappings":";;;AAEA,cAAc;AACD,QAAA,gBAAgB,GAAG,MAAM,CAAC,MAAM,CAAC;IAC5C,KAAK,EAAE,OAAO;IACd,QAAQ,EAAE,UAAU;IACpB,YAAY,EAAE,cAAc;IAC5B,SAAS,EAAE,WAAW;IACtB,QAAQ,EAAE,UAAU;CACZ,CAAC,CAAC;AAQZ;;;;;;GAMG;AACH,MAAa,WAAW;IAGtB,2DAA2D;IAC3D,YAAY,KAAuB;QACjC;;;;;WAKG;QACH,IAAI,CAAC,KAAK,GAAG,wBAAgB,CAAC,KAAK,CAAC,IAAI,KAAK,CAAC;IAChD,CAAC;IAED;;;;OAIG;IACH,MAAM,CAAC,WAAW,CAAC,OAGlB;QACC,IAAI,OAAO,IAAI,IAAI,EAAE,CAAC;YACpB,OAAO;QACT,CAAC;QAED,IAAI,OAAO,CAAC,WAAW,EAAE,CAAC;YACxB,MAAM,EAAE,WAAW,EAAE,GAAG,OAAO,CAAC;YAChC,IAAI,WAAW,YAAY,WAAW,EAAE,CAAC;gBACvC,OAAO,WAAW,CAAC;YACrB,CAAC;iBAAM,IAAI,OAAO,WAAW,KAAK,QAAQ,EAAE,CAAC;gBAC3C,OAAO,IAAI,WAAW,CAAC,WAAW,CAAC,CAAC;YACtC,CAAC;iBAAM,IAAI,OAAO,IAAI,WAAW,IAAI,WAAW,CAAC,KAAK,EAAE,CAAC;gBACvD,OAAO,IAAI,WAAW,CAAC,WAAW,CAAC,KAAK,CAAC,CAAC;YAC5C,CAAC;QACH,CAAC;QAED,IAAI,OAAO,CAAC,KAAK,EAAE,CAAC;YAClB,OAAO,IAAI,WAAW,CAAC,OAAO,CAAC,KAAK,CAAC,CAAC;QACxC,CAAC;QACD,OAAO;IACT,CAAC;IAED,MAAM,KAAK,QAAQ;QACjB,OAAO,wBAAgB,CAAC,QAAQ,CAAC;IACnC,CAAC;IAED,MAAM,KAAK,SAAS;QAClB,OAAO,wBAAgB,CAAC,SAAS,CAAC;IACpC,CAAC;IAED,MAAM,KAAK,YAAY;QACrB,OAAO,wBAAgB,CAAC,YAAY,CAAC;IACvC,CAAC;IAED,MAAM,KAAK,QAAQ;QACjB,OAAO,wBAAgB,CAAC,QAAQ,CAAC;IACnC,CAAC;IAED,MAAM;QACJ,OAAO,EAAE,KAAK,EAAE,IAAI,CAAC,KAAK,EAAE,CAAC;IAC/B,CAAC;CACF;AA/DD,kCA+DC"}
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diff --git a/backend/node_modules/mongodb/lib/read_preference.js b/backend/node_modules/mongodb/lib/read_preference.js
new file mode 100644
index 0000000..c6d094b
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/read_preference.js
@@ -0,0 +1,195 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ReadPreference = exports.ReadPreferenceMode = void 0;
+const error_1 = require("./error");
+/** @public */
+exports.ReadPreferenceMode = Object.freeze({
+    primary: 'primary',
+    primaryPreferred: 'primaryPreferred',
+    secondary: 'secondary',
+    secondaryPreferred: 'secondaryPreferred',
+    nearest: 'nearest'
+});
+/**
+ * The **ReadPreference** class is a class that represents a MongoDB ReadPreference and is
+ * used to construct connections.
+ * @public
+ *
+ * @see https://www.mongodb.com/docs/manual/core/read-preference/
+ */
+class ReadPreference {
+    /**
+     * @param mode - A string describing the read preference mode (primary|primaryPreferred|secondary|secondaryPreferred|nearest)
+     * @param tags - A tag set used to target reads to members with the specified tag(s). tagSet is not available if using read preference mode primary.
+     * @param options - Additional read preference options
+     */
+    constructor(mode, tags, options) {
+        if (!ReadPreference.isValid(mode)) {
+            throw new error_1.MongoInvalidArgumentError(`Invalid read preference mode ${JSON.stringify(mode)}`);
+        }
+        if (options == null && typeof tags === 'object' && !Array.isArray(tags)) {
+            options = tags;
+            tags = undefined;
+        }
+        else if (tags && !Array.isArray(tags)) {
+            throw new error_1.MongoInvalidArgumentError('ReadPreference tags must be an array');
+        }
+        this.mode = mode;
+        this.tags = tags;
+        this.hedge = options?.hedge;
+        this.maxStalenessSeconds = undefined;
+        this.minWireVersion = undefined;
+        options = options ?? {};
+        if (options.maxStalenessSeconds != null) {
+            if (options.maxStalenessSeconds <= 0) {
+                throw new error_1.MongoInvalidArgumentError('maxStalenessSeconds must be a positive integer');
+            }
+            this.maxStalenessSeconds = options.maxStalenessSeconds;
+            // NOTE: The minimum required wire version is 5 for this read preference. If the existing
+            //       topology has a lower value then a MongoError will be thrown during server selection.
+            this.minWireVersion = 5;
+        }
+        if (this.mode === ReadPreference.PRIMARY) {
+            if (this.tags && Array.isArray(this.tags) && this.tags.length > 0) {
+                throw new error_1.MongoInvalidArgumentError('Primary read preference cannot be combined with tags');
+            }
+            if (this.maxStalenessSeconds) {
+                throw new error_1.MongoInvalidArgumentError('Primary read preference cannot be combined with maxStalenessSeconds');
+            }
+            if (this.hedge) {
+                throw new error_1.MongoInvalidArgumentError('Primary read preference cannot be combined with hedge');
+            }
+        }
+    }
+    // Support the deprecated `preference` property introduced in the porcelain layer
+    get preference() {
+        return this.mode;
+    }
+    static fromString(mode) {
+        return new ReadPreference(mode);
+    }
+    /**
+     * Construct a ReadPreference given an options object.
+     *
+     * @param options - The options object from which to extract the read preference.
+     */
+    static fromOptions(options) {
+        if (!options)
+            return;
+        const readPreference = options.readPreference ?? options.session?.transaction.options.readPreference;
+        const readPreferenceTags = options.readPreferenceTags;
+        if (readPreference == null) {
+            return;
+        }
+        if (typeof readPreference === 'string') {
+            return new ReadPreference(readPreference, readPreferenceTags, {
+                maxStalenessSeconds: options.maxStalenessSeconds,
+                hedge: options.hedge
+            });
+        }
+        else if (!(readPreference instanceof ReadPreference) && typeof readPreference === 'object') {
+            const mode = readPreference.mode || readPreference.preference;
+            if (mode && typeof mode === 'string') {
+                return new ReadPreference(mode, readPreference.tags ?? readPreferenceTags, {
+                    maxStalenessSeconds: readPreference.maxStalenessSeconds,
+                    hedge: options.hedge
+                });
+            }
+        }
+        if (readPreferenceTags) {
+            readPreference.tags = readPreferenceTags;
+        }
+        return readPreference;
+    }
+    /**
+     * Replaces options.readPreference with a ReadPreference instance
+     */
+    static translate(options) {
+        if (options.readPreference == null)
+            return options;
+        const r = options.readPreference;
+        if (typeof r === 'string') {
+            options.readPreference = new ReadPreference(r);
+        }
+        else if (r && !(r instanceof ReadPreference) && typeof r === 'object') {
+            const mode = r.mode || r.preference;
+            if (mode && typeof mode === 'string') {
+                options.readPreference = new ReadPreference(mode, r.tags, {
+                    maxStalenessSeconds: r.maxStalenessSeconds
+                });
+            }
+        }
+        else if (!(r instanceof ReadPreference)) {
+            throw new error_1.MongoInvalidArgumentError(`Invalid read preference: ${r}`);
+        }
+        return options;
+    }
+    /**
+     * Validate if a mode is legal
+     *
+     * @param mode - The string representing the read preference mode.
+     */
+    static isValid(mode) {
+        const VALID_MODES = new Set([
+            ReadPreference.PRIMARY,
+            ReadPreference.PRIMARY_PREFERRED,
+            ReadPreference.SECONDARY,
+            ReadPreference.SECONDARY_PREFERRED,
+            ReadPreference.NEAREST,
+            null
+        ]);
+        return VALID_MODES.has(mode);
+    }
+    /**
+     * Validate if a mode is legal
+     *
+     * @param mode - The string representing the read preference mode.
+     */
+    isValid(mode) {
+        return ReadPreference.isValid(typeof mode === 'string' ? mode : this.mode);
+    }
+    /**
+     * Indicates that this readPreference needs the "SecondaryOk" bit when sent over the wire
+     * @see https://www.mongodb.com/docs/manual/reference/mongodb-wire-protocol/#op-query
+     */
+    secondaryOk() {
+        const NEEDS_SECONDARYOK = new Set([
+            ReadPreference.PRIMARY_PREFERRED,
+            ReadPreference.SECONDARY,
+            ReadPreference.SECONDARY_PREFERRED,
+            ReadPreference.NEAREST
+        ]);
+        return NEEDS_SECONDARYOK.has(this.mode);
+    }
+    /**
+     * Check if the two ReadPreferences are equivalent
+     *
+     * @param readPreference - The read preference with which to check equality
+     */
+    equals(readPreference) {
+        return readPreference.mode === this.mode;
+    }
+    /** Return JSON representation */
+    toJSON() {
+        const readPreference = { mode: this.mode };
+        if (Array.isArray(this.tags))
+            readPreference.tags = this.tags;
+        if (this.maxStalenessSeconds)
+            readPreference.maxStalenessSeconds = this.maxStalenessSeconds;
+        if (this.hedge)
+            readPreference.hedge = this.hedge;
+        return readPreference;
+    }
+}
+exports.ReadPreference = ReadPreference;
+ReadPreference.PRIMARY = exports.ReadPreferenceMode.primary;
+ReadPreference.PRIMARY_PREFERRED = exports.ReadPreferenceMode.primaryPreferred;
+ReadPreference.SECONDARY = exports.ReadPreferenceMode.secondary;
+ReadPreference.SECONDARY_PREFERRED = exports.ReadPreferenceMode.secondaryPreferred;
+ReadPreference.NEAREST = exports.ReadPreferenceMode.nearest;
+ReadPreference.primary = new ReadPreference(exports.ReadPreferenceMode.primary);
+ReadPreference.primaryPreferred = new ReadPreference(exports.ReadPreferenceMode.primaryPreferred);
+ReadPreference.secondary = new ReadPreference(exports.ReadPreferenceMode.secondary);
+ReadPreference.secondaryPreferred = new ReadPreference(exports.ReadPreferenceMode.secondaryPreferred);
+ReadPreference.nearest = new ReadPreference(exports.ReadPreferenceMode.nearest);
+//# sourceMappingURL=read_preference.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/read_preference.js.map b/backend/node_modules/mongodb/lib/read_preference.js.map
new file mode 100644
index 0000000..b67c5f4
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/read_preference.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/resource_management.js b/backend/node_modules/mongodb/lib/resource_management.js
new file mode 100644
index 0000000..ae4b395
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/resource_management.js
@@ -0,0 +1,58 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.configureResourceManagement = configureResourceManagement;
+exports.configureExplicitResourceManagement = configureExplicitResourceManagement;
+/** @internal */
+function configureResourceManagement(target) {
+    Symbol.asyncDispose &&
+        Object.defineProperty(target, Symbol.asyncDispose, {
+            value: async function asyncDispose() {
+                await this.asyncDispose();
+            },
+            enumerable: false,
+            configurable: true,
+            writable: true
+        });
+}
+/**
+ * @beta
+ * @experimental
+ *
+ * Attaches `Symbol.asyncDispose` methods to the MongoClient, Cursors, sessions and change streams
+ * if Symbol.asyncDispose is defined.
+ *
+ * It's usually not necessary to call this method - the driver attempts to attach these methods
+ * itself when its loaded.  However, sometimes the driver may be loaded before `Symbol.asyncDispose`
+ * is defined, in which case it is necessary to call this method directly.  This can happen if the
+ * application is polyfilling `Symbol.asyncDispose`.
+ *
+ * Example:
+ *
+ * ```typescript
+ * import { configureExplicitResourceManagement, MongoClient } from 'mongodb/lib/beta';
+ *
+ * Symbol.asyncDispose ??= Symbol('dispose');
+ * load();
+ *
+ * await using client = new MongoClient(...);
+ * ```
+ */
+function configureExplicitResourceManagement() {
+    // We must import lazily here, because there's a circular dependency between the resource management
+    // file and each resources' file.  We could move `configureResourceManagement` to a separate
+    // function, but keeping all resource-management related code together seemed preferable and I chose
+    // lazy requiring of resources instead.
+    // eslint-disable-next-line @typescript-eslint/no-require-imports
+    const { MongoClient } = require('./mongo_client');
+    // eslint-disable-next-line @typescript-eslint/no-require-imports
+    const { ClientSession } = require('./sessions');
+    // eslint-disable-next-line @typescript-eslint/no-require-imports
+    const { AbstractCursor } = require('./cursor/abstract_cursor');
+    // eslint-disable-next-line @typescript-eslint/no-require-imports
+    const { ChangeStream } = require('./change_stream');
+    configureResourceManagement(MongoClient.prototype);
+    configureResourceManagement(ClientSession.prototype);
+    configureResourceManagement(AbstractCursor.prototype);
+    configureResourceManagement(ChangeStream.prototype);
+}
+//# sourceMappingURL=resource_management.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/resource_management.js.map b/backend/node_modules/mongodb/lib/resource_management.js.map
new file mode 100644
index 0000000..202b5fc
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/resource_management.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"resource_management.js","sourceRoot":"","sources":["../src/resource_management.ts"],"names":[],"mappings":";;AAmBA,kEAUC;AAyBD,kFAmBC;AAvDD,gBAAgB;AAChB,SAAgB,2BAA2B,CAAC,MAAuB;IACjE,MAAM,CAAC,YAAY;QACjB,MAAM,CAAC,cAAc,CAAC,MAAM,EAAE,MAAM,CAAC,YAAY,EAAE;YACjD,KAAK,EAAE,KAAK,UAAU,YAAY;gBAChC,MAAM,IAAI,CAAC,YAAY,EAAE,CAAC;YAC5B,CAAC;YACD,UAAU,EAAE,KAAK;YACjB,YAAY,EAAE,IAAI;YAClB,QAAQ,EAAE,IAAI;SACf,CAAC,CAAC;AACP,CAAC;AAED;;;;;;;;;;;;;;;;;;;;;;GAsBG;AACH,SAAgB,mCAAmC;IACjD,oGAAoG;IACpG,4FAA4F;IAC5F,oGAAoG;IACpG,uCAAuC;IAEvC,iEAAiE;IACjE,MAAM,EAAE,WAAW,EAAE,GAAG,OAAO,CAAC,gBAAgB,CAAC,CAAC;IAClD,iEAAiE;IACjE,MAAM,EAAE,aAAa,EAAE,GAAG,OAAO,CAAC,YAAY,CAAC,CAAC;IAChD,iEAAiE;IACjE,MAAM,EAAE,cAAc,EAAE,GAAG,OAAO,CAAC,0BAA0B,CAAC,CAAC;IAC/D,iEAAiE;IACjE,MAAM,EAAE,YAAY,EAAE,GAAG,OAAO,CAAC,iBAAiB,CAAC,CAAC;IAEpD,2BAA2B,CAAC,WAAW,CAAC,SAAS,CAAC,CAAC;IACnD,2BAA2B,CAAC,aAAa,CAAC,SAAS,CAAC,CAAC;IACrD,2BAA2B,CAAC,cAAc,CAAC,SAAS,CAAC,CAAC;IACtD,2BAA2B,CAAC,YAAY,CAAC,SAAS,CAAC,CAAC;AACtD,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/sdam/common.js b/backend/node_modules/mongodb/lib/sdam/common.js
new file mode 100644
index 0000000..c378293
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/sdam/common.js
@@ -0,0 +1,49 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ServerType = exports.TopologyType = exports.STATE_CONNECTED = exports.STATE_CONNECTING = exports.STATE_CLOSED = exports.STATE_CLOSING = void 0;
+exports._advanceClusterTime = _advanceClusterTime;
+// shared state names
+exports.STATE_CLOSING = 'closing';
+exports.STATE_CLOSED = 'closed';
+exports.STATE_CONNECTING = 'connecting';
+exports.STATE_CONNECTED = 'connected';
+/**
+ * An enumeration of topology types we know about
+ * @public
+ */
+exports.TopologyType = Object.freeze({
+    Single: 'Single',
+    ReplicaSetNoPrimary: 'ReplicaSetNoPrimary',
+    ReplicaSetWithPrimary: 'ReplicaSetWithPrimary',
+    Sharded: 'Sharded',
+    Unknown: 'Unknown',
+    LoadBalanced: 'LoadBalanced'
+});
+/**
+ * An enumeration of server types we know about
+ * @public
+ */
+exports.ServerType = Object.freeze({
+    Standalone: 'Standalone',
+    Mongos: 'Mongos',
+    PossiblePrimary: 'PossiblePrimary',
+    RSPrimary: 'RSPrimary',
+    RSSecondary: 'RSSecondary',
+    RSArbiter: 'RSArbiter',
+    RSOther: 'RSOther',
+    RSGhost: 'RSGhost',
+    Unknown: 'Unknown',
+    LoadBalancer: 'LoadBalancer'
+});
+/** Shared function to determine clusterTime for a given topology or session */
+function _advanceClusterTime(entity, $clusterTime) {
+    if (entity.clusterTime == null) {
+        entity.clusterTime = $clusterTime;
+    }
+    else {
+        if ($clusterTime.clusterTime.greaterThan(entity.clusterTime.clusterTime)) {
+            entity.clusterTime = $clusterTime;
+        }
+    }
+}
+//# sourceMappingURL=common.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/sdam/common.js.map b/backend/node_modules/mongodb/lib/sdam/common.js.map
new file mode 100644
index 0000000..d9297ef
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/sdam/common.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"common.js","sourceRoot":"","sources":["../../src/sdam/common.ts"],"names":[],"mappings":";;;AA8DA,kDAWC;AArED,qBAAqB;AACR,QAAA,aAAa,GAAG,SAAS,CAAC;AAC1B,QAAA,YAAY,GAAG,QAAQ,CAAC;AACxB,QAAA,gBAAgB,GAAG,YAAY,CAAC;AAChC,QAAA,eAAe,GAAG,WAAW,CAAC;AAE3C;;;GAGG;AACU,QAAA,YAAY,GAAG,MAAM,CAAC,MAAM,CAAC;IACxC,MAAM,EAAE,QAAQ;IAChB,mBAAmB,EAAE,qBAAqB;IAC1C,qBAAqB,EAAE,uBAAuB;IAC9C,OAAO,EAAE,SAAS;IAClB,OAAO,EAAE,SAAS;IAClB,YAAY,EAAE,cAAc;CACpB,CAAC,CAAC;AAKZ;;;GAGG;AACU,QAAA,UAAU,GAAG,MAAM,CAAC,MAAM,CAAC;IACtC,UAAU,EAAE,YAAY;IACxB,MAAM,EAAE,QAAQ;IAChB,eAAe,EAAE,iBAAiB;IAClC,SAAS,EAAE,WAAW;IACtB,WAAW,EAAE,aAAa;IAC1B,SAAS,EAAE,WAAW;IACtB,OAAO,EAAE,SAAS;IAClB,OAAO,EAAE,SAAS;IAClB,OAAO,EAAE,SAAS;IAClB,YAAY,EAAE,cAAc;CACpB,CAAC,CAAC;AAoBZ,+EAA+E;AAC/E,SAAgB,mBAAmB,CACjC,MAAgC,EAChC,YAAyB;IAEzB,IAAI,MAAM,CAAC,WAAW,IAAI,IAAI,EAAE,CAAC;QAC/B,MAAM,CAAC,WAAW,GAAG,YAAY,CAAC;IACpC,CAAC;SAAM,CAAC;QACN,IAAI,YAAY,CAAC,WAAW,CAAC,WAAW,CAAC,MAAM,CAAC,WAAW,CAAC,WAAW,CAAC,EAAE,CAAC;YACzE,MAAM,CAAC,WAAW,GAAG,YAAY,CAAC;QACpC,CAAC;IACH,CAAC;AACH,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/sdam/events.js b/backend/node_modules/mongodb/lib/sdam/events.js
new file mode 100644
index 0000000..69dfe9f
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/sdam/events.js
@@ -0,0 +1,146 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ServerHeartbeatFailedEvent = exports.ServerHeartbeatSucceededEvent = exports.ServerHeartbeatStartedEvent = exports.TopologyClosedEvent = exports.TopologyOpeningEvent = exports.TopologyDescriptionChangedEvent = exports.ServerClosedEvent = exports.ServerOpeningEvent = exports.ServerDescriptionChangedEvent = void 0;
+const constants_1 = require("../constants");
+/**
+ * Emitted when server description changes, but does NOT include changes to the RTT.
+ * @public
+ * @category Event
+ */
+class ServerDescriptionChangedEvent {
+    /** @internal */
+    constructor(topologyId, address, previousDescription, newDescription) {
+        this.name = constants_1.SERVER_DESCRIPTION_CHANGED;
+        this.topologyId = topologyId;
+        this.address = address;
+        this.previousDescription = previousDescription;
+        this.newDescription = newDescription;
+    }
+}
+exports.ServerDescriptionChangedEvent = ServerDescriptionChangedEvent;
+/**
+ * Emitted when server is initialized.
+ * @public
+ * @category Event
+ */
+class ServerOpeningEvent {
+    /** @internal */
+    constructor(topologyId, address) {
+        /** @internal */
+        this.name = constants_1.SERVER_OPENING;
+        this.topologyId = topologyId;
+        this.address = address;
+    }
+}
+exports.ServerOpeningEvent = ServerOpeningEvent;
+/**
+ * Emitted when server is closed.
+ * @public
+ * @category Event
+ */
+class ServerClosedEvent {
+    /** @internal */
+    constructor(topologyId, address) {
+        /** @internal */
+        this.name = constants_1.SERVER_CLOSED;
+        this.topologyId = topologyId;
+        this.address = address;
+    }
+}
+exports.ServerClosedEvent = ServerClosedEvent;
+/**
+ * Emitted when topology description changes.
+ * @public
+ * @category Event
+ */
+class TopologyDescriptionChangedEvent {
+    /** @internal */
+    constructor(topologyId, previousDescription, newDescription) {
+        /** @internal */
+        this.name = constants_1.TOPOLOGY_DESCRIPTION_CHANGED;
+        this.topologyId = topologyId;
+        this.previousDescription = previousDescription;
+        this.newDescription = newDescription;
+    }
+}
+exports.TopologyDescriptionChangedEvent = TopologyDescriptionChangedEvent;
+/**
+ * Emitted when topology is initialized.
+ * @public
+ * @category Event
+ */
+class TopologyOpeningEvent {
+    /** @internal */
+    constructor(topologyId) {
+        /** @internal */
+        this.name = constants_1.TOPOLOGY_OPENING;
+        this.topologyId = topologyId;
+    }
+}
+exports.TopologyOpeningEvent = TopologyOpeningEvent;
+/**
+ * Emitted when topology is closed.
+ * @public
+ * @category Event
+ */
+class TopologyClosedEvent {
+    /** @internal */
+    constructor(topologyId) {
+        /** @internal */
+        this.name = constants_1.TOPOLOGY_CLOSED;
+        this.topologyId = topologyId;
+    }
+}
+exports.TopologyClosedEvent = TopologyClosedEvent;
+/**
+ * Emitted when the server monitor’s hello command is started - immediately before
+ * the hello command is serialized into raw BSON and written to the socket.
+ *
+ * @public
+ * @category Event
+ */
+class ServerHeartbeatStartedEvent {
+    /** @internal */
+    constructor(connectionId, awaited) {
+        /** @internal */
+        this.name = constants_1.SERVER_HEARTBEAT_STARTED;
+        this.connectionId = connectionId;
+        this.awaited = awaited;
+    }
+}
+exports.ServerHeartbeatStartedEvent = ServerHeartbeatStartedEvent;
+/**
+ * Emitted when the server monitor’s hello succeeds.
+ * @public
+ * @category Event
+ */
+class ServerHeartbeatSucceededEvent {
+    /** @internal */
+    constructor(connectionId, duration, reply, awaited) {
+        /** @internal */
+        this.name = constants_1.SERVER_HEARTBEAT_SUCCEEDED;
+        this.connectionId = connectionId;
+        this.duration = duration;
+        this.reply = reply ?? {};
+        this.awaited = awaited;
+    }
+}
+exports.ServerHeartbeatSucceededEvent = ServerHeartbeatSucceededEvent;
+/**
+ * Emitted when the server monitor’s hello fails, either with an “ok: 0” or a socket exception.
+ * @public
+ * @category Event
+ */
+class ServerHeartbeatFailedEvent {
+    /** @internal */
+    constructor(connectionId, duration, failure, awaited) {
+        /** @internal */
+        this.name = constants_1.SERVER_HEARTBEAT_FAILED;
+        this.connectionId = connectionId;
+        this.duration = duration;
+        this.failure = failure;
+        this.awaited = awaited;
+    }
+}
+exports.ServerHeartbeatFailedEvent = ServerHeartbeatFailedEvent;
+//# sourceMappingURL=events.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/sdam/events.js.map b/backend/node_modules/mongodb/lib/sdam/events.js.map
new file mode 100644
index 0000000..0ddeb04
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/sdam/events.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"events.js","sourceRoot":"","sources":["../../src/sdam/events.ts"],"names":[],"mappings":";;;AACA,4CAUsB;AAItB;;;;GAIG;AACH,MAAa,6BAA6B;IAWxC,gBAAgB;IAChB,YACE,UAAkB,EAClB,OAAe,EACf,mBAAsC,EACtC,cAAiC;QAPnC,SAAI,GAAG,sCAA0B,CAAC;QAShC,IAAI,CAAC,UAAU,GAAG,UAAU,CAAC;QAC7B,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACvB,IAAI,CAAC,mBAAmB,GAAG,mBAAmB,CAAC;QAC/C,IAAI,CAAC,cAAc,GAAG,cAAc,CAAC;IACvC,CAAC;CACF;AAvBD,sEAuBC;AAED;;;;GAIG;AACH,MAAa,kBAAkB;IAQ7B,gBAAgB;IAChB,YAAY,UAAkB,EAAE,OAAe;QAJ/C,gBAAgB;QAChB,SAAI,GAAG,0BAAc,CAAC;QAIpB,IAAI,CAAC,UAAU,GAAG,UAAU,CAAC;QAC7B,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;IACzB,CAAC;CACF;AAbD,gDAaC;AAED;;;;GAIG;AACH,MAAa,iBAAiB;IAQ5B,gBAAgB;IAChB,YAAY,UAAkB,EAAE,OAAe;QAJ/C,gBAAgB;QAChB,SAAI,GAAG,yBAAa,CAAC;QAInB,IAAI,CAAC,UAAU,GAAG,UAAU,CAAC;QAC7B,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;IACzB,CAAC;CACF;AAbD,8CAaC;AAED;;;;GAIG;AACH,MAAa,+BAA+B;IAU1C,gBAAgB;IAChB,YACE,UAAkB,EAClB,mBAAwC,EACxC,cAAmC;QAPrC,gBAAgB;QAChB,SAAI,GAAG,wCAA4B,CAAC;QAQlC,IAAI,CAAC,UAAU,GAAG,UAAU,CAAC;QAC7B,IAAI,CAAC,mBAAmB,GAAG,mBAAmB,CAAC;QAC/C,IAAI,CAAC,cAAc,GAAG,cAAc,CAAC;IACvC,CAAC;CACF;AApBD,0EAoBC;AAED;;;;GAIG;AACH,MAAa,oBAAoB;IAM/B,gBAAgB;IAChB,YAAY,UAAkB;QAJ9B,gBAAgB;QAChB,SAAI,GAAG,4BAAgB,CAAC;QAItB,IAAI,CAAC,UAAU,GAAG,UAAU,CAAC;IAC/B,CAAC;CACF;AAVD,oDAUC;AAED;;;;GAIG;AACH,MAAa,mBAAmB;IAM9B,gBAAgB;IAChB,YAAY,UAAkB;QAJ9B,gBAAgB;QAChB,SAAI,GAAG,2BAAe,CAAC;QAIrB,IAAI,CAAC,UAAU,GAAG,UAAU,CAAC;IAC/B,CAAC;CACF;AAVD,kDAUC;AAED;;;;;;GAMG;AACH,MAAa,2BAA2B;IAQtC,gBAAgB;IAChB,YAAY,YAAoB,EAAE,OAAgB;QAJlD,gBAAgB;QAChB,SAAI,GAAG,oCAAwB,CAAC;QAI9B,IAAI,CAAC,YAAY,GAAG,YAAY,CAAC;QACjC,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;IACzB,CAAC;CACF;AAbD,kEAaC;AAED;;;;GAIG;AACH,MAAa,6BAA6B;IAYxC,gBAAgB;IAChB,YAAY,YAAoB,EAAE,QAAgB,EAAE,KAAsB,EAAE,OAAgB;QAJ5F,gBAAgB;QAChB,SAAI,GAAG,sCAA0B,CAAC;QAIhC,IAAI,CAAC,YAAY,GAAG,YAAY,CAAC;QACjC,IAAI,CAAC,QAAQ,GAAG,QAAQ,CAAC;QACzB,IAAI,CAAC,KAAK,GAAG,KAAK,IAAI,EAAE,CAAC;QACzB,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;IACzB,CAAC;CACF;AAnBD,sEAmBC;AAED;;;;GAIG;AACH,MAAa,0BAA0B;IAYrC,gBAAgB;IAChB,YAAY,YAAoB,EAAE,QAAgB,EAAE,OAAc,EAAE,OAAgB;QAJpF,gBAAgB;QAChB,SAAI,GAAG,mCAAuB,CAAC;QAI7B,IAAI,CAAC,YAAY,GAAG,YAAY,CAAC;QACjC,IAAI,CAAC,QAAQ,GAAG,QAAQ,CAAC;QACzB,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACvB,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;IACzB,CAAC;CACF;AAnBD,gEAmBC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/sdam/monitor.js b/backend/node_modules/mongodb/lib/sdam/monitor.js
new file mode 100644
index 0000000..d9395d6
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/sdam/monitor.js
@@ -0,0 +1,549 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.RTTSampler = exports.MonitorInterval = exports.RTTPinger = exports.Monitor = exports.ServerMonitoringMode = void 0;
+const timers_1 = require("timers");
+const bson_1 = require("../bson");
+const connect_1 = require("../cmap/connect");
+const client_metadata_1 = require("../cmap/handshake/client_metadata");
+const constants_1 = require("../constants");
+const error_1 = require("../error");
+const mongo_logger_1 = require("../mongo_logger");
+const mongo_types_1 = require("../mongo_types");
+const utils_1 = require("../utils");
+const common_1 = require("./common");
+const events_1 = require("./events");
+const server_1 = require("./server");
+/** @internal */
+const kServer = Symbol('server');
+/** @internal */
+const kMonitorId = Symbol('monitorId');
+/** @internal */
+const kCancellationToken = Symbol('cancellationToken');
+const STATE_IDLE = 'idle';
+const STATE_MONITORING = 'monitoring';
+const stateTransition = (0, utils_1.makeStateMachine)({
+    [common_1.STATE_CLOSING]: [common_1.STATE_CLOSING, STATE_IDLE, common_1.STATE_CLOSED],
+    [common_1.STATE_CLOSED]: [common_1.STATE_CLOSED, STATE_MONITORING],
+    [STATE_IDLE]: [STATE_IDLE, STATE_MONITORING, common_1.STATE_CLOSING],
+    [STATE_MONITORING]: [STATE_MONITORING, STATE_IDLE, common_1.STATE_CLOSING]
+});
+const INVALID_REQUEST_CHECK_STATES = new Set([common_1.STATE_CLOSING, common_1.STATE_CLOSED, STATE_MONITORING]);
+function isInCloseState(monitor) {
+    return monitor.s.state === common_1.STATE_CLOSED || monitor.s.state === common_1.STATE_CLOSING;
+}
+/** @public */
+exports.ServerMonitoringMode = Object.freeze({
+    auto: 'auto',
+    poll: 'poll',
+    stream: 'stream'
+});
+/** @internal */
+class Monitor extends mongo_types_1.TypedEventEmitter {
+    constructor(server, options) {
+        super();
+        /** @internal */
+        this.component = mongo_logger_1.MongoLoggableComponent.TOPOLOGY;
+        this[kServer] = server;
+        this.connection = null;
+        this[kCancellationToken] = new mongo_types_1.CancellationToken();
+        this[kCancellationToken].setMaxListeners(Infinity);
+        this[kMonitorId] = undefined;
+        this.s = {
+            state: common_1.STATE_CLOSED
+        };
+        this.address = server.description.address;
+        this.options = Object.freeze({
+            connectTimeoutMS: options.connectTimeoutMS ?? 10000,
+            heartbeatFrequencyMS: options.heartbeatFrequencyMS ?? 10000,
+            minHeartbeatFrequencyMS: options.minHeartbeatFrequencyMS ?? 500,
+            serverMonitoringMode: options.serverMonitoringMode
+        });
+        this.isRunningInFaasEnv = (0, client_metadata_1.getFAASEnv)() != null;
+        this.mongoLogger = this[kServer].topology.client?.mongoLogger;
+        this.rttSampler = new RTTSampler(10);
+        const cancellationToken = this[kCancellationToken];
+        // TODO: refactor this to pull it directly from the pool, requires new ConnectionPool integration
+        const connectOptions = {
+            id: '<monitor>',
+            generation: server.pool.generation,
+            cancellationToken,
+            hostAddress: server.description.hostAddress,
+            ...options,
+            // force BSON serialization options
+            raw: false,
+            useBigInt64: false,
+            promoteLongs: true,
+            promoteValues: true,
+            promoteBuffers: true
+        };
+        // ensure no authentication is used for monitoring
+        delete connectOptions.credentials;
+        if (connectOptions.autoEncrypter) {
+            delete connectOptions.autoEncrypter;
+        }
+        this.connectOptions = Object.freeze(connectOptions);
+    }
+    connect() {
+        if (this.s.state !== common_1.STATE_CLOSED) {
+            return;
+        }
+        // start
+        const heartbeatFrequencyMS = this.options.heartbeatFrequencyMS;
+        const minHeartbeatFrequencyMS = this.options.minHeartbeatFrequencyMS;
+        this[kMonitorId] = new MonitorInterval(monitorServer(this), {
+            heartbeatFrequencyMS: heartbeatFrequencyMS,
+            minHeartbeatFrequencyMS: minHeartbeatFrequencyMS,
+            immediate: true
+        });
+    }
+    requestCheck() {
+        if (INVALID_REQUEST_CHECK_STATES.has(this.s.state)) {
+            return;
+        }
+        this[kMonitorId]?.wake();
+    }
+    reset() {
+        const topologyVersion = this[kServer].description.topologyVersion;
+        if (isInCloseState(this) || topologyVersion == null) {
+            return;
+        }
+        stateTransition(this, common_1.STATE_CLOSING);
+        resetMonitorState(this);
+        // restart monitor
+        stateTransition(this, STATE_IDLE);
+        // restart monitoring
+        const heartbeatFrequencyMS = this.options.heartbeatFrequencyMS;
+        const minHeartbeatFrequencyMS = this.options.minHeartbeatFrequencyMS;
+        this[kMonitorId] = new MonitorInterval(monitorServer(this), {
+            heartbeatFrequencyMS: heartbeatFrequencyMS,
+            minHeartbeatFrequencyMS: minHeartbeatFrequencyMS
+        });
+    }
+    close() {
+        if (isInCloseState(this)) {
+            return;
+        }
+        stateTransition(this, common_1.STATE_CLOSING);
+        resetMonitorState(this);
+        // close monitor
+        this.emit('close');
+        stateTransition(this, common_1.STATE_CLOSED);
+    }
+    get roundTripTime() {
+        return this.rttSampler.average();
+    }
+    get minRoundTripTime() {
+        return this.rttSampler.min();
+    }
+    get latestRtt() {
+        return this.rttSampler.last;
+    }
+    addRttSample(rtt) {
+        this.rttSampler.addSample(rtt);
+    }
+    clearRttSamples() {
+        this.rttSampler.clear();
+    }
+}
+exports.Monitor = Monitor;
+function resetMonitorState(monitor) {
+    monitor[kMonitorId]?.stop();
+    monitor[kMonitorId] = undefined;
+    monitor.rttPinger?.close();
+    monitor.rttPinger = undefined;
+    monitor[kCancellationToken].emit('cancel');
+    monitor.connection?.destroy();
+    monitor.connection = null;
+    monitor.clearRttSamples();
+}
+function useStreamingProtocol(monitor, topologyVersion) {
+    // If we have no topology version we always poll no matter
+    // what the user provided, since the server does not support
+    // the streaming protocol.
+    if (topologyVersion == null)
+        return false;
+    const serverMonitoringMode = monitor.options.serverMonitoringMode;
+    if (serverMonitoringMode === exports.ServerMonitoringMode.poll)
+        return false;
+    if (serverMonitoringMode === exports.ServerMonitoringMode.stream)
+        return true;
+    // If we are in auto mode, we need to figure out if we're in a FaaS
+    // environment or not and choose the appropriate mode.
+    if (monitor.isRunningInFaasEnv)
+        return false;
+    return true;
+}
+function checkServer(monitor, callback) {
+    let start;
+    let awaited;
+    const topologyVersion = monitor[kServer].description.topologyVersion;
+    const isAwaitable = useStreamingProtocol(monitor, topologyVersion);
+    monitor.emitAndLogHeartbeat(server_1.Server.SERVER_HEARTBEAT_STARTED, monitor[kServer].topology.s.id, undefined, new events_1.ServerHeartbeatStartedEvent(monitor.address, isAwaitable));
+    function onHeartbeatFailed(err) {
+        monitor.connection?.destroy();
+        monitor.connection = null;
+        monitor.emitAndLogHeartbeat(server_1.Server.SERVER_HEARTBEAT_FAILED, monitor[kServer].topology.s.id, undefined, new events_1.ServerHeartbeatFailedEvent(monitor.address, (0, utils_1.calculateDurationInMs)(start), err, awaited));
+        const error = !(err instanceof error_1.MongoError)
+            ? new error_1.MongoError(error_1.MongoError.buildErrorMessage(err), { cause: err })
+            : err;
+        error.addErrorLabel(error_1.MongoErrorLabel.ResetPool);
+        if (error instanceof error_1.MongoNetworkTimeoutError) {
+            error.addErrorLabel(error_1.MongoErrorLabel.InterruptInUseConnections);
+        }
+        monitor.emit('resetServer', error);
+        callback(err);
+    }
+    function onHeartbeatSucceeded(hello) {
+        if (!('isWritablePrimary' in hello)) {
+            // Provide hello-style response document.
+            hello.isWritablePrimary = hello[constants_1.LEGACY_HELLO_COMMAND];
+        }
+        // NOTE: here we use the latestRtt as this measurement corresponds with the value
+        // obtained for this successful heartbeat, if there is no latestRtt, then we calculate the
+        // duration
+        const duration = isAwaitable && monitor.rttPinger
+            ? (monitor.rttPinger.latestRtt ?? (0, utils_1.calculateDurationInMs)(start))
+            : (0, utils_1.calculateDurationInMs)(start);
+        monitor.addRttSample(duration);
+        monitor.emitAndLogHeartbeat(server_1.Server.SERVER_HEARTBEAT_SUCCEEDED, monitor[kServer].topology.s.id, hello.connectionId, new events_1.ServerHeartbeatSucceededEvent(monitor.address, duration, hello, isAwaitable));
+        if (isAwaitable) {
+            // If we are using the streaming protocol then we immediately issue another 'started'
+            // event, otherwise the "check" is complete and return to the main monitor loop
+            monitor.emitAndLogHeartbeat(server_1.Server.SERVER_HEARTBEAT_STARTED, monitor[kServer].topology.s.id, undefined, new events_1.ServerHeartbeatStartedEvent(monitor.address, true));
+            // We have not actually sent an outgoing handshake, but when we get the next response we
+            // want the duration to reflect the time since we last heard from the server
+            start = (0, utils_1.now)();
+        }
+        else {
+            monitor.rttPinger?.close();
+            monitor.rttPinger = undefined;
+            callback(undefined, hello);
+        }
+    }
+    const { connection } = monitor;
+    if (connection && !connection.closed) {
+        const { serverApi, helloOk } = connection;
+        const connectTimeoutMS = monitor.options.connectTimeoutMS;
+        const maxAwaitTimeMS = monitor.options.heartbeatFrequencyMS;
+        const cmd = {
+            [serverApi?.version || helloOk ? 'hello' : constants_1.LEGACY_HELLO_COMMAND]: 1,
+            ...(isAwaitable && topologyVersion
+                ? { maxAwaitTimeMS, topologyVersion: makeTopologyVersion(topologyVersion) }
+                : {})
+        };
+        const options = isAwaitable
+            ? {
+                socketTimeoutMS: connectTimeoutMS ? connectTimeoutMS + maxAwaitTimeMS : 0,
+                exhaustAllowed: true
+            }
+            : { socketTimeoutMS: connectTimeoutMS };
+        if (isAwaitable && monitor.rttPinger == null) {
+            monitor.rttPinger = new RTTPinger(monitor);
+        }
+        // Record new start time before sending handshake
+        start = (0, utils_1.now)();
+        if (isAwaitable) {
+            awaited = true;
+            return connection.exhaustCommand((0, utils_1.ns)('admin.$cmd'), cmd, options, (error, hello) => {
+                if (error)
+                    return onHeartbeatFailed(error);
+                return onHeartbeatSucceeded(hello);
+            });
+        }
+        awaited = false;
+        connection
+            .command((0, utils_1.ns)('admin.$cmd'), cmd, options)
+            .then(onHeartbeatSucceeded, onHeartbeatFailed);
+        return;
+    }
+    // connecting does an implicit `hello`
+    (async () => {
+        const socket = await (0, connect_1.makeSocket)(monitor.connectOptions);
+        const connection = (0, connect_1.makeConnection)(monitor.connectOptions, socket);
+        // The start time is after socket creation but before the handshake
+        start = (0, utils_1.now)();
+        try {
+            await (0, connect_1.performInitialHandshake)(connection, monitor.connectOptions);
+            return connection;
+        }
+        catch (error) {
+            connection.destroy();
+            throw error;
+        }
+    })().then(connection => {
+        if (isInCloseState(monitor)) {
+            connection.destroy();
+            return;
+        }
+        const duration = (0, utils_1.calculateDurationInMs)(start);
+        monitor.addRttSample(duration);
+        monitor.connection = connection;
+        monitor.emitAndLogHeartbeat(server_1.Server.SERVER_HEARTBEAT_SUCCEEDED, monitor[kServer].topology.s.id, connection.hello?.connectionId, new events_1.ServerHeartbeatSucceededEvent(monitor.address, duration, connection.hello, useStreamingProtocol(monitor, connection.hello?.topologyVersion)));
+        callback(undefined, connection.hello);
+    }, error => {
+        monitor.connection = null;
+        awaited = false;
+        onHeartbeatFailed(error);
+    });
+}
+function monitorServer(monitor) {
+    return (callback) => {
+        if (monitor.s.state === STATE_MONITORING) {
+            process.nextTick(callback);
+            return;
+        }
+        stateTransition(monitor, STATE_MONITORING);
+        function done() {
+            if (!isInCloseState(monitor)) {
+                stateTransition(monitor, STATE_IDLE);
+            }
+            callback();
+        }
+        checkServer(monitor, (err, hello) => {
+            if (err) {
+                // otherwise an error occurred on initial discovery, also bail
+                if (monitor[kServer].description.type === common_1.ServerType.Unknown) {
+                    return done();
+                }
+            }
+            // if the check indicates streaming is supported, immediately reschedule monitoring
+            if (useStreamingProtocol(monitor, hello?.topologyVersion)) {
+                (0, timers_1.setTimeout)(() => {
+                    if (!isInCloseState(monitor)) {
+                        monitor[kMonitorId]?.wake();
+                    }
+                }, 0);
+            }
+            done();
+        });
+    };
+}
+function makeTopologyVersion(tv) {
+    return {
+        processId: tv.processId,
+        // tests mock counter as just number, but in a real situation counter should always be a Long
+        // TODO(NODE-2674): Preserve int64 sent from MongoDB
+        counter: bson_1.Long.isLong(tv.counter) ? tv.counter : bson_1.Long.fromNumber(tv.counter)
+    };
+}
+/** @internal */
+class RTTPinger {
+    constructor(monitor) {
+        this.connection = undefined;
+        this[kCancellationToken] = monitor[kCancellationToken];
+        this.closed = false;
+        this.monitor = monitor;
+        this.latestRtt = monitor.latestRtt ?? undefined;
+        const heartbeatFrequencyMS = monitor.options.heartbeatFrequencyMS;
+        this[kMonitorId] = (0, timers_1.setTimeout)(() => this.measureRoundTripTime(), heartbeatFrequencyMS);
+    }
+    get roundTripTime() {
+        return this.monitor.roundTripTime;
+    }
+    get minRoundTripTime() {
+        return this.monitor.minRoundTripTime;
+    }
+    close() {
+        this.closed = true;
+        (0, timers_1.clearTimeout)(this[kMonitorId]);
+        this.connection?.destroy();
+        this.connection = undefined;
+    }
+    measureAndReschedule(start, conn) {
+        if (this.closed) {
+            conn?.destroy();
+            return;
+        }
+        if (this.connection == null) {
+            this.connection = conn;
+        }
+        this.latestRtt = (0, utils_1.calculateDurationInMs)(start);
+        this[kMonitorId] = (0, timers_1.setTimeout)(() => this.measureRoundTripTime(), this.monitor.options.heartbeatFrequencyMS);
+    }
+    measureRoundTripTime() {
+        const start = (0, utils_1.now)();
+        if (this.closed) {
+            return;
+        }
+        const connection = this.connection;
+        if (connection == null) {
+            (0, connect_1.connect)(this.monitor.connectOptions).then(connection => {
+                this.measureAndReschedule(start, connection);
+            }, () => {
+                this.connection = undefined;
+            });
+            return;
+        }
+        const commandName = connection.serverApi?.version || connection.helloOk ? 'hello' : constants_1.LEGACY_HELLO_COMMAND;
+        connection.command((0, utils_1.ns)('admin.$cmd'), { [commandName]: 1 }, undefined).then(() => this.measureAndReschedule(start), () => {
+            this.connection?.destroy();
+            this.connection = undefined;
+            return;
+        });
+    }
+}
+exports.RTTPinger = RTTPinger;
+/**
+ * @internal
+ */
+class MonitorInterval {
+    constructor(fn, options = {}) {
+        this.isExpeditedCallToFnScheduled = false;
+        this.stopped = false;
+        this.isExecutionInProgress = false;
+        this.hasExecutedOnce = false;
+        this._executeAndReschedule = () => {
+            if (this.stopped)
+                return;
+            if (this.timerId) {
+                (0, timers_1.clearTimeout)(this.timerId);
+            }
+            this.isExpeditedCallToFnScheduled = false;
+            this.isExecutionInProgress = true;
+            this.fn(() => {
+                this.lastExecutionEnded = (0, utils_1.now)();
+                this.isExecutionInProgress = false;
+                this._reschedule(this.heartbeatFrequencyMS);
+            });
+        };
+        this.fn = fn;
+        this.lastExecutionEnded = -Infinity;
+        this.heartbeatFrequencyMS = options.heartbeatFrequencyMS ?? 1000;
+        this.minHeartbeatFrequencyMS = options.minHeartbeatFrequencyMS ?? 500;
+        if (options.immediate) {
+            this._executeAndReschedule();
+        }
+        else {
+            this._reschedule(undefined);
+        }
+    }
+    wake() {
+        const currentTime = (0, utils_1.now)();
+        const timeSinceLastCall = currentTime - this.lastExecutionEnded;
+        // TODO(NODE-4674): Add error handling and logging to the monitor
+        if (timeSinceLastCall < 0) {
+            return this._executeAndReschedule();
+        }
+        if (this.isExecutionInProgress) {
+            return;
+        }
+        // debounce multiple calls to wake within the `minInterval`
+        if (this.isExpeditedCallToFnScheduled) {
+            return;
+        }
+        // reschedule a call as soon as possible, ensuring the call never happens
+        // faster than the `minInterval`
+        if (timeSinceLastCall < this.minHeartbeatFrequencyMS) {
+            this.isExpeditedCallToFnScheduled = true;
+            this._reschedule(this.minHeartbeatFrequencyMS - timeSinceLastCall);
+            return;
+        }
+        this._executeAndReschedule();
+    }
+    stop() {
+        this.stopped = true;
+        if (this.timerId) {
+            (0, timers_1.clearTimeout)(this.timerId);
+            this.timerId = undefined;
+        }
+        this.lastExecutionEnded = -Infinity;
+        this.isExpeditedCallToFnScheduled = false;
+    }
+    toString() {
+        return JSON.stringify(this);
+    }
+    toJSON() {
+        const currentTime = (0, utils_1.now)();
+        const timeSinceLastCall = currentTime - this.lastExecutionEnded;
+        return {
+            timerId: this.timerId != null ? 'set' : 'cleared',
+            lastCallTime: this.lastExecutionEnded,
+            isExpeditedCheckScheduled: this.isExpeditedCallToFnScheduled,
+            stopped: this.stopped,
+            heartbeatFrequencyMS: this.heartbeatFrequencyMS,
+            minHeartbeatFrequencyMS: this.minHeartbeatFrequencyMS,
+            currentTime,
+            timeSinceLastCall
+        };
+    }
+    _reschedule(ms) {
+        if (this.stopped)
+            return;
+        if (this.timerId) {
+            (0, timers_1.clearTimeout)(this.timerId);
+        }
+        this.timerId = (0, timers_1.setTimeout)(this._executeAndReschedule, ms || this.heartbeatFrequencyMS);
+    }
+}
+exports.MonitorInterval = MonitorInterval;
+/** @internal
+ * This class implements the RTT sampling logic specified for [CSOT](https://github.com/mongodb/specifications/blob/bbb335e60cd7ea1e0f7cd9a9443cb95fc9d3b64d/source/client-side-operations-timeout/client-side-operations-timeout.md#drivers-use-minimum-rtt-to-short-circuit-operations)
+ *
+ * This is implemented as a [circular buffer](https://en.wikipedia.org/wiki/Circular_buffer) keeping
+ * the most recent `windowSize` samples
+ * */
+class RTTSampler {
+    constructor(windowSize = 10) {
+        this.rttSamples = new Float64Array(windowSize);
+        this.length = 0;
+        this.writeIndex = 0;
+    }
+    /**
+     * Adds an rtt sample to the end of the circular buffer
+     * When `windowSize` samples have been collected, `addSample` overwrites the least recently added
+     * sample
+     */
+    addSample(sample) {
+        this.rttSamples[this.writeIndex++] = sample;
+        if (this.length < this.rttSamples.length) {
+            this.length++;
+        }
+        this.writeIndex %= this.rttSamples.length;
+    }
+    /**
+     * When \< 2 samples have been collected, returns 0
+     * Otherwise computes the minimum value samples contained in the buffer
+     */
+    min() {
+        if (this.length < 2)
+            return 0;
+        let min = this.rttSamples[0];
+        for (let i = 1; i < this.length; i++) {
+            if (this.rttSamples[i] < min)
+                min = this.rttSamples[i];
+        }
+        return min;
+    }
+    /**
+     * Returns mean of samples contained in the buffer
+     */
+    average() {
+        if (this.length === 0)
+            return 0;
+        let sum = 0;
+        for (let i = 0; i < this.length; i++) {
+            sum += this.rttSamples[i];
+        }
+        return sum / this.length;
+    }
+    /**
+     * Returns most recently inserted element in the buffer
+     * Returns null if the buffer is empty
+     * */
+    get last() {
+        if (this.length === 0)
+            return null;
+        return this.rttSamples[this.writeIndex === 0 ? this.length - 1 : this.writeIndex - 1];
+    }
+    /**
+     * Clear the buffer
+     * NOTE: this does not overwrite the data held in the internal array, just the pointers into
+     * this array
+     */
+    clear() {
+        this.length = 0;
+        this.writeIndex = 0;
+    }
+}
+exports.RTTSampler = RTTSampler;
+//# sourceMappingURL=monitor.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/sdam/monitor.js.map b/backend/node_modules/mongodb/lib/sdam/monitor.js.map
new file mode 100644
index 0000000..c1d4574
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/sdam/monitor.js.map
@@ -0,0 +1 @@
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diff --git a/backend/node_modules/mongodb/lib/sdam/server.js b/backend/node_modules/mongodb/lib/sdam/server.js
new file mode 100644
index 0000000..ad843a6
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/sdam/server.js
@@ -0,0 +1,365 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Server = void 0;
+const connection_1 = require("../cmap/connection");
+const connection_pool_1 = require("../cmap/connection_pool");
+const errors_1 = require("../cmap/errors");
+const constants_1 = require("../constants");
+const error_1 = require("../error");
+const mongo_types_1 = require("../mongo_types");
+const transactions_1 = require("../transactions");
+const utils_1 = require("../utils");
+const write_concern_1 = require("../write_concern");
+const common_1 = require("./common");
+const monitor_1 = require("./monitor");
+const server_description_1 = require("./server_description");
+const stateTransition = (0, utils_1.makeStateMachine)({
+    [common_1.STATE_CLOSED]: [common_1.STATE_CLOSED, common_1.STATE_CONNECTING],
+    [common_1.STATE_CONNECTING]: [common_1.STATE_CONNECTING, common_1.STATE_CLOSING, common_1.STATE_CONNECTED, common_1.STATE_CLOSED],
+    [common_1.STATE_CONNECTED]: [common_1.STATE_CONNECTED, common_1.STATE_CLOSING, common_1.STATE_CLOSED],
+    [common_1.STATE_CLOSING]: [common_1.STATE_CLOSING, common_1.STATE_CLOSED]
+});
+/** @internal */
+class Server extends mongo_types_1.TypedEventEmitter {
+    /**
+     * Create a server
+     */
+    constructor(topology, description, options) {
+        super();
+        this.serverApi = options.serverApi;
+        const poolOptions = { hostAddress: description.hostAddress, ...options };
+        this.topology = topology;
+        this.pool = new connection_pool_1.ConnectionPool(this, poolOptions);
+        this.s = {
+            description,
+            options,
+            state: common_1.STATE_CLOSED,
+            operationCount: 0
+        };
+        for (const event of [...constants_1.CMAP_EVENTS, ...constants_1.APM_EVENTS]) {
+            this.pool.on(event, (e) => this.emit(event, e));
+        }
+        this.pool.on(connection_1.Connection.CLUSTER_TIME_RECEIVED, (clusterTime) => {
+            this.clusterTime = clusterTime;
+        });
+        if (this.loadBalanced) {
+            this.monitor = null;
+            // monitoring is disabled in load balancing mode
+            return;
+        }
+        // create the monitor
+        this.monitor = new monitor_1.Monitor(this, this.s.options);
+        for (const event of constants_1.HEARTBEAT_EVENTS) {
+            this.monitor.on(event, (e) => this.emit(event, e));
+        }
+        this.monitor.on('resetServer', (error) => markServerUnknown(this, error));
+        this.monitor.on(Server.SERVER_HEARTBEAT_SUCCEEDED, (event) => {
+            this.emit(Server.DESCRIPTION_RECEIVED, new server_description_1.ServerDescription(this.description.hostAddress, event.reply, {
+                roundTripTime: this.monitor?.roundTripTime,
+                minRoundTripTime: this.monitor?.minRoundTripTime
+            }));
+            if (this.s.state === common_1.STATE_CONNECTING) {
+                stateTransition(this, common_1.STATE_CONNECTED);
+                this.emit(Server.CONNECT, this);
+            }
+        });
+    }
+    get clusterTime() {
+        return this.topology.clusterTime;
+    }
+    set clusterTime(clusterTime) {
+        this.topology.clusterTime = clusterTime;
+    }
+    get description() {
+        return this.s.description;
+    }
+    get name() {
+        return this.s.description.address;
+    }
+    get autoEncrypter() {
+        if (this.s.options && this.s.options.autoEncrypter) {
+            return this.s.options.autoEncrypter;
+        }
+        return;
+    }
+    get loadBalanced() {
+        return this.topology.description.type === common_1.TopologyType.LoadBalanced;
+    }
+    /**
+     * Initiate server connect
+     */
+    connect() {
+        if (this.s.state !== common_1.STATE_CLOSED) {
+            return;
+        }
+        stateTransition(this, common_1.STATE_CONNECTING);
+        // If in load balancer mode we automatically set the server to
+        // a load balancer. It never transitions out of this state and
+        // has no monitor.
+        if (!this.loadBalanced) {
+            this.monitor?.connect();
+        }
+        else {
+            stateTransition(this, common_1.STATE_CONNECTED);
+            this.emit(Server.CONNECT, this);
+        }
+    }
+    /** Destroy the server connection */
+    destroy() {
+        if (this.s.state === common_1.STATE_CLOSED) {
+            return;
+        }
+        stateTransition(this, common_1.STATE_CLOSING);
+        if (!this.loadBalanced) {
+            this.monitor?.close();
+        }
+        this.pool.close();
+        stateTransition(this, common_1.STATE_CLOSED);
+        this.emit('closed');
+    }
+    /**
+     * Immediately schedule monitoring of this server. If there already an attempt being made
+     * this will be a no-op.
+     */
+    requestCheck() {
+        if (!this.loadBalanced) {
+            this.monitor?.requestCheck();
+        }
+    }
+    async command(ns, cmd, options, responseType) {
+        if (ns.db == null || typeof ns === 'string') {
+            throw new error_1.MongoInvalidArgumentError('Namespace must not be a string');
+        }
+        if (this.s.state === common_1.STATE_CLOSING || this.s.state === common_1.STATE_CLOSED) {
+            throw new error_1.MongoServerClosedError();
+        }
+        // Clone the options
+        const finalOptions = Object.assign({}, options, {
+            wireProtocolCommand: false,
+            directConnection: this.topology.s.options.directConnection
+        });
+        // There are cases where we need to flag the read preference not to get sent in
+        // the command, such as pre-5.0 servers attempting to perform an aggregate write
+        // with a non-primary read preference. In this case the effective read preference
+        // (primary) is not the same as the provided and must be removed completely.
+        if (finalOptions.omitReadPreference) {
+            delete finalOptions.readPreference;
+        }
+        if (this.description.iscryptd) {
+            finalOptions.omitMaxTimeMS = true;
+        }
+        const session = finalOptions.session;
+        let conn = session?.pinnedConnection;
+        this.incrementOperationCount();
+        if (conn == null) {
+            try {
+                conn = await this.pool.checkOut(options);
+                if (this.loadBalanced && isPinnableCommand(cmd, session)) {
+                    session?.pin(conn);
+                }
+            }
+            catch (checkoutError) {
+                this.decrementOperationCount();
+                if (!(checkoutError instanceof errors_1.PoolClearedError))
+                    this.handleError(checkoutError);
+                throw checkoutError;
+            }
+        }
+        try {
+            try {
+                const res = await conn.command(ns, cmd, finalOptions, responseType);
+                (0, write_concern_1.throwIfWriteConcernError)(res);
+                return res;
+            }
+            catch (commandError) {
+                throw this.decorateCommandError(conn, cmd, finalOptions, commandError);
+            }
+        }
+        catch (operationError) {
+            if (operationError instanceof error_1.MongoError &&
+                operationError.code === error_1.MONGODB_ERROR_CODES.Reauthenticate) {
+                await this.pool.reauthenticate(conn);
+                try {
+                    const res = await conn.command(ns, cmd, finalOptions, responseType);
+                    (0, write_concern_1.throwIfWriteConcernError)(res);
+                    return res;
+                }
+                catch (commandError) {
+                    throw this.decorateCommandError(conn, cmd, finalOptions, commandError);
+                }
+            }
+            else {
+                throw operationError;
+            }
+        }
+        finally {
+            this.decrementOperationCount();
+            if (session?.pinnedConnection !== conn) {
+                this.pool.checkIn(conn);
+            }
+        }
+    }
+    /**
+     * Handle SDAM error
+     * @internal
+     */
+    handleError(error, connection) {
+        if (!(error instanceof error_1.MongoError)) {
+            return;
+        }
+        const isStaleError = error.connectionGeneration && error.connectionGeneration < this.pool.generation;
+        if (isStaleError) {
+            return;
+        }
+        const isNetworkNonTimeoutError = error instanceof error_1.MongoNetworkError && !(error instanceof error_1.MongoNetworkTimeoutError);
+        const isNetworkTimeoutBeforeHandshakeError = (0, error_1.isNetworkErrorBeforeHandshake)(error);
+        const isAuthHandshakeError = error.hasErrorLabel(error_1.MongoErrorLabel.HandshakeError);
+        if (isNetworkNonTimeoutError || isNetworkTimeoutBeforeHandshakeError || isAuthHandshakeError) {
+            // In load balanced mode we never mark the server as unknown and always
+            // clear for the specific service id.
+            if (!this.loadBalanced) {
+                error.addErrorLabel(error_1.MongoErrorLabel.ResetPool);
+                markServerUnknown(this, error);
+            }
+            else if (connection) {
+                this.pool.clear({ serviceId: connection.serviceId });
+            }
+        }
+        else {
+            if ((0, error_1.isSDAMUnrecoverableError)(error)) {
+                if (shouldHandleStateChangeError(this, error)) {
+                    const shouldClearPool = (0, utils_1.maxWireVersion)(this) <= 7 || (0, error_1.isNodeShuttingDownError)(error);
+                    if (this.loadBalanced && connection && shouldClearPool) {
+                        this.pool.clear({ serviceId: connection.serviceId });
+                    }
+                    if (!this.loadBalanced) {
+                        if (shouldClearPool) {
+                            error.addErrorLabel(error_1.MongoErrorLabel.ResetPool);
+                        }
+                        markServerUnknown(this, error);
+                        process.nextTick(() => this.requestCheck());
+                    }
+                }
+            }
+        }
+    }
+    /**
+     * Ensure that error is properly decorated and internal state is updated before throwing
+     * @internal
+     */
+    decorateCommandError(connection, cmd, options, error) {
+        if (typeof error !== 'object' || error == null || !('name' in error)) {
+            throw new error_1.MongoRuntimeError('An unexpected error type: ' + typeof error);
+        }
+        if (error.name === 'AbortError' && 'cause' in error && error.cause instanceof error_1.MongoError) {
+            error = error.cause;
+        }
+        if (!(error instanceof error_1.MongoError)) {
+            // Node.js or some other error we have not special handling for
+            return error;
+        }
+        if (connectionIsStale(this.pool, connection)) {
+            return error;
+        }
+        const session = options?.session;
+        if (error instanceof error_1.MongoNetworkError) {
+            if (session && !session.hasEnded && session.serverSession) {
+                session.serverSession.isDirty = true;
+            }
+            // inActiveTransaction check handles commit and abort.
+            if (inActiveTransaction(session, cmd) &&
+                !error.hasErrorLabel(error_1.MongoErrorLabel.TransientTransactionError)) {
+                error.addErrorLabel(error_1.MongoErrorLabel.TransientTransactionError);
+            }
+            if ((isRetryableWritesEnabled(this.topology) || (0, transactions_1.isTransactionCommand)(cmd)) &&
+                (0, utils_1.supportsRetryableWrites)(this) &&
+                !inActiveTransaction(session, cmd)) {
+                error.addErrorLabel(error_1.MongoErrorLabel.RetryableWriteError);
+            }
+        }
+        else {
+            if ((isRetryableWritesEnabled(this.topology) || (0, transactions_1.isTransactionCommand)(cmd)) &&
+                (0, error_1.needsRetryableWriteLabel)(error, (0, utils_1.maxWireVersion)(this), this.description.type) &&
+                !inActiveTransaction(session, cmd)) {
+                error.addErrorLabel(error_1.MongoErrorLabel.RetryableWriteError);
+            }
+        }
+        if (session &&
+            session.isPinned &&
+            error.hasErrorLabel(error_1.MongoErrorLabel.TransientTransactionError)) {
+            session.unpin({ force: true });
+        }
+        this.handleError(error, connection);
+        return error;
+    }
+    /**
+     * Decrement the operation count, returning the new count.
+     */
+    decrementOperationCount() {
+        return (this.s.operationCount -= 1);
+    }
+    /**
+     * Increment the operation count, returning the new count.
+     */
+    incrementOperationCount() {
+        return (this.s.operationCount += 1);
+    }
+}
+exports.Server = Server;
+/** @event */
+Server.SERVER_HEARTBEAT_STARTED = constants_1.SERVER_HEARTBEAT_STARTED;
+/** @event */
+Server.SERVER_HEARTBEAT_SUCCEEDED = constants_1.SERVER_HEARTBEAT_SUCCEEDED;
+/** @event */
+Server.SERVER_HEARTBEAT_FAILED = constants_1.SERVER_HEARTBEAT_FAILED;
+/** @event */
+Server.CONNECT = constants_1.CONNECT;
+/** @event */
+Server.DESCRIPTION_RECEIVED = constants_1.DESCRIPTION_RECEIVED;
+/** @event */
+Server.CLOSED = constants_1.CLOSED;
+/** @event */
+Server.ENDED = constants_1.ENDED;
+function markServerUnknown(server, error) {
+    // Load balancer servers can never be marked unknown.
+    if (server.loadBalanced) {
+        return;
+    }
+    if (error instanceof error_1.MongoNetworkError && !(error instanceof error_1.MongoNetworkTimeoutError)) {
+        server.monitor?.reset();
+    }
+    server.emit(Server.DESCRIPTION_RECEIVED, new server_description_1.ServerDescription(server.description.hostAddress, undefined, { error }));
+}
+function isPinnableCommand(cmd, session) {
+    if (session) {
+        return (session.inTransaction() ||
+            (session.transaction.isCommitted && 'commitTransaction' in cmd) ||
+            'aggregate' in cmd ||
+            'find' in cmd ||
+            'getMore' in cmd ||
+            'listCollections' in cmd ||
+            'listIndexes' in cmd ||
+            'bulkWrite' in cmd);
+    }
+    return false;
+}
+function connectionIsStale(pool, connection) {
+    if (connection.serviceId) {
+        return (connection.generation !== pool.serviceGenerations.get(connection.serviceId.toHexString()));
+    }
+    return connection.generation !== pool.generation;
+}
+function shouldHandleStateChangeError(server, err) {
+    const etv = err.topologyVersion;
+    const stv = server.description.topologyVersion;
+    return (0, server_description_1.compareTopologyVersion)(stv, etv) < 0;
+}
+function inActiveTransaction(session, cmd) {
+    return session && session.inTransaction() && !(0, transactions_1.isTransactionCommand)(cmd);
+}
+/** this checks the retryWrites option passed down from the client options, it
+ * does not check if the server supports retryable writes */
+function isRetryableWritesEnabled(topology) {
+    return topology.s.options.retryWrites !== false;
+}
+//# sourceMappingURL=server.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/sdam/server.js.map b/backend/node_modules/mongodb/lib/sdam/server.js.map
new file mode 100644
index 0000000..f606553
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/sdam/server.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/sdam/server_description.js b/backend/node_modules/mongodb/lib/sdam/server_description.js
new file mode 100644
index 0000000..8b32da1
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/sdam/server_description.js
@@ -0,0 +1,204 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ServerDescription = void 0;
+exports.parseServerType = parseServerType;
+exports.compareTopologyVersion = compareTopologyVersion;
+const bson_1 = require("../bson");
+const error_1 = require("../error");
+const utils_1 = require("../utils");
+const common_1 = require("./common");
+const WRITABLE_SERVER_TYPES = new Set([
+    common_1.ServerType.RSPrimary,
+    common_1.ServerType.Standalone,
+    common_1.ServerType.Mongos,
+    common_1.ServerType.LoadBalancer
+]);
+const DATA_BEARING_SERVER_TYPES = new Set([
+    common_1.ServerType.RSPrimary,
+    common_1.ServerType.RSSecondary,
+    common_1.ServerType.Mongos,
+    common_1.ServerType.Standalone,
+    common_1.ServerType.LoadBalancer
+]);
+/**
+ * The client's view of a single server, based on the most recent hello outcome.
+ *
+ * Internal type, not meant to be directly instantiated
+ * @public
+ */
+class ServerDescription {
+    /**
+     * Create a ServerDescription
+     * @internal
+     *
+     * @param address - The address of the server
+     * @param hello - An optional hello response for this server
+     */
+    constructor(address, hello, options = {}) {
+        if (address == null || address === '') {
+            throw new error_1.MongoRuntimeError('ServerDescription must be provided with a non-empty address');
+        }
+        this.address =
+            typeof address === 'string'
+                ? utils_1.HostAddress.fromString(address).toString() // Use HostAddress to normalize
+                : address.toString();
+        this.type = parseServerType(hello, options);
+        this.hosts = hello?.hosts?.map((host) => host.toLowerCase()) ?? [];
+        this.passives = hello?.passives?.map((host) => host.toLowerCase()) ?? [];
+        this.arbiters = hello?.arbiters?.map((host) => host.toLowerCase()) ?? [];
+        this.tags = hello?.tags ?? {};
+        this.minWireVersion = hello?.minWireVersion ?? 0;
+        this.maxWireVersion = hello?.maxWireVersion ?? 0;
+        this.roundTripTime = options?.roundTripTime ?? -1;
+        this.minRoundTripTime = options?.minRoundTripTime ?? 0;
+        this.lastUpdateTime = (0, utils_1.now)();
+        this.lastWriteDate = hello?.lastWrite?.lastWriteDate ?? 0;
+        // NOTE: This actually builds the stack string instead of holding onto the getter and all its
+        // associated references. This is done to prevent a memory leak.
+        this.error = options.error ?? null;
+        this.error?.stack;
+        // TODO(NODE-2674): Preserve int64 sent from MongoDB
+        this.topologyVersion = this.error?.topologyVersion ?? hello?.topologyVersion ?? null;
+        this.setName = hello?.setName ?? null;
+        this.setVersion = hello?.setVersion ?? null;
+        this.electionId = hello?.electionId ?? null;
+        this.logicalSessionTimeoutMinutes = hello?.logicalSessionTimeoutMinutes ?? null;
+        this.maxMessageSizeBytes = hello?.maxMessageSizeBytes ?? null;
+        this.maxWriteBatchSize = hello?.maxWriteBatchSize ?? null;
+        this.maxBsonObjectSize = hello?.maxBsonObjectSize ?? null;
+        this.primary = hello?.primary ?? null;
+        this.me = hello?.me?.toLowerCase() ?? null;
+        this.$clusterTime = hello?.$clusterTime ?? null;
+        this.iscryptd = Boolean(hello?.iscryptd);
+    }
+    get hostAddress() {
+        return utils_1.HostAddress.fromString(this.address);
+    }
+    get allHosts() {
+        return this.hosts.concat(this.arbiters).concat(this.passives);
+    }
+    /** Is this server available for reads*/
+    get isReadable() {
+        return this.type === common_1.ServerType.RSSecondary || this.isWritable;
+    }
+    /** Is this server data bearing */
+    get isDataBearing() {
+        return DATA_BEARING_SERVER_TYPES.has(this.type);
+    }
+    /** Is this server available for writes */
+    get isWritable() {
+        return WRITABLE_SERVER_TYPES.has(this.type);
+    }
+    get host() {
+        const chopLength = `:${this.port}`.length;
+        return this.address.slice(0, -chopLength);
+    }
+    get port() {
+        const port = this.address.split(':').pop();
+        return port ? Number.parseInt(port, 10) : 27017;
+    }
+    /**
+     * Determines if another `ServerDescription` is equal to this one per the rules defined in the SDAM specification.
+     * @see https://github.com/mongodb/specifications/blob/master/source/server-discovery-and-monitoring/server-discovery-and-monitoring.md
+     */
+    equals(other) {
+        // Despite using the comparator that would determine a nullish topologyVersion as greater than
+        // for equality we should only always perform direct equality comparison
+        const topologyVersionsEqual = this.topologyVersion === other?.topologyVersion ||
+            compareTopologyVersion(this.topologyVersion, other?.topologyVersion) === 0;
+        const electionIdsEqual = this.electionId != null && other?.electionId != null
+            ? (0, utils_1.compareObjectId)(this.electionId, other.electionId) === 0
+            : this.electionId === other?.electionId;
+        return (other != null &&
+            other.iscryptd === this.iscryptd &&
+            (0, utils_1.errorStrictEqual)(this.error, other.error) &&
+            this.type === other.type &&
+            this.minWireVersion === other.minWireVersion &&
+            (0, utils_1.arrayStrictEqual)(this.hosts, other.hosts) &&
+            tagsStrictEqual(this.tags, other.tags) &&
+            this.setName === other.setName &&
+            this.setVersion === other.setVersion &&
+            electionIdsEqual &&
+            this.primary === other.primary &&
+            this.logicalSessionTimeoutMinutes === other.logicalSessionTimeoutMinutes &&
+            topologyVersionsEqual);
+    }
+}
+exports.ServerDescription = ServerDescription;
+// Parses a `hello` message and determines the server type
+function parseServerType(hello, options) {
+    if (options?.loadBalanced) {
+        return common_1.ServerType.LoadBalancer;
+    }
+    if (!hello || !hello.ok) {
+        return common_1.ServerType.Unknown;
+    }
+    if (hello.isreplicaset) {
+        return common_1.ServerType.RSGhost;
+    }
+    if (hello.msg && hello.msg === 'isdbgrid') {
+        return common_1.ServerType.Mongos;
+    }
+    if (hello.setName) {
+        if (hello.hidden) {
+            return common_1.ServerType.RSOther;
+        }
+        else if (hello.isWritablePrimary) {
+            return common_1.ServerType.RSPrimary;
+        }
+        else if (hello.secondary) {
+            return common_1.ServerType.RSSecondary;
+        }
+        else if (hello.arbiterOnly) {
+            return common_1.ServerType.RSArbiter;
+        }
+        else {
+            return common_1.ServerType.RSOther;
+        }
+    }
+    return common_1.ServerType.Standalone;
+}
+function tagsStrictEqual(tags, tags2) {
+    const tagsKeys = Object.keys(tags);
+    const tags2Keys = Object.keys(tags2);
+    return (tagsKeys.length === tags2Keys.length &&
+        tagsKeys.every((key) => tags2[key] === tags[key]));
+}
+/**
+ * Compares two topology versions.
+ *
+ * 1. If the response topologyVersion is unset or the ServerDescription's
+ *    topologyVersion is null, the client MUST assume the response is more recent.
+ * 1. If the response's topologyVersion.processId is not equal to the
+ *    ServerDescription's, the client MUST assume the response is more recent.
+ * 1. If the response's topologyVersion.processId is equal to the
+ *    ServerDescription's, the client MUST use the counter field to determine
+ *    which topologyVersion is more recent.
+ *
+ * ```ts
+ * currentTv <   newTv === -1
+ * currentTv === newTv === 0
+ * currentTv >   newTv === 1
+ * ```
+ */
+function compareTopologyVersion(currentTv, newTv) {
+    if (currentTv == null || newTv == null) {
+        return -1;
+    }
+    if (!currentTv.processId.equals(newTv.processId)) {
+        return -1;
+    }
+    // TODO(NODE-2674): Preserve int64 sent from MongoDB
+    const currentCounter = typeof currentTv.counter === 'bigint'
+        ? bson_1.Long.fromBigInt(currentTv.counter)
+        : bson_1.Long.isLong(currentTv.counter)
+            ? currentTv.counter
+            : bson_1.Long.fromNumber(currentTv.counter);
+    const newCounter = typeof newTv.counter === 'bigint'
+        ? bson_1.Long.fromBigInt(newTv.counter)
+        : bson_1.Long.isLong(newTv.counter)
+            ? newTv.counter
+            : bson_1.Long.fromNumber(newTv.counter);
+    return currentCounter.compare(newCounter);
+}
+//# sourceMappingURL=server_description.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/sdam/server_description.js.map b/backend/node_modules/mongodb/lib/sdam/server_description.js.map
new file mode 100644
index 0000000..f8c4009
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/sdam/server_description.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/sdam/server_selection.js b/backend/node_modules/mongodb/lib/sdam/server_selection.js
new file mode 100644
index 0000000..94aea10
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/sdam/server_selection.js
@@ -0,0 +1,237 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.MIN_SECONDARY_WRITE_WIRE_VERSION = void 0;
+exports.writableServerSelector = writableServerSelector;
+exports.sameServerSelector = sameServerSelector;
+exports.secondaryWritableServerSelector = secondaryWritableServerSelector;
+exports.readPreferenceServerSelector = readPreferenceServerSelector;
+const error_1 = require("../error");
+const read_preference_1 = require("../read_preference");
+const common_1 = require("./common");
+// max staleness constants
+const IDLE_WRITE_PERIOD = 10000;
+const SMALLEST_MAX_STALENESS_SECONDS = 90;
+//  Minimum version to try writes on secondaries.
+exports.MIN_SECONDARY_WRITE_WIRE_VERSION = 13;
+/**
+ * Returns a server selector that selects for writable servers
+ */
+function writableServerSelector() {
+    return function writableServer(topologyDescription, servers) {
+        return latencyWindowReducer(topologyDescription, servers.filter((s) => s.isWritable));
+    };
+}
+/**
+ * The purpose of this selector is to select the same server, only
+ * if it is in a state that it can have commands sent to it.
+ */
+function sameServerSelector(description) {
+    return function sameServerSelector(topologyDescription, servers) {
+        if (!description)
+            return [];
+        // Filter the servers to match the provided description only if
+        // the type is not unknown.
+        return servers.filter(sd => {
+            return sd.address === description.address && sd.type !== common_1.ServerType.Unknown;
+        });
+    };
+}
+/**
+ * Returns a server selector that uses a read preference to select a
+ * server potentially for a write on a secondary.
+ */
+function secondaryWritableServerSelector(wireVersion, readPreference) {
+    // If server version < 5.0, read preference always primary.
+    // If server version >= 5.0...
+    // - If read preference is supplied, use that.
+    // - If no read preference is supplied, use primary.
+    if (!readPreference ||
+        !wireVersion ||
+        (wireVersion && wireVersion < exports.MIN_SECONDARY_WRITE_WIRE_VERSION)) {
+        return readPreferenceServerSelector(read_preference_1.ReadPreference.primary);
+    }
+    return readPreferenceServerSelector(readPreference);
+}
+/**
+ * Reduces the passed in array of servers by the rules of the "Max Staleness" specification
+ * found here:
+ *
+ * @see https://github.com/mongodb/specifications/blob/master/source/max-staleness/max-staleness.md
+ *
+ * @param readPreference - The read preference providing max staleness guidance
+ * @param topologyDescription - The topology description
+ * @param servers - The list of server descriptions to be reduced
+ * @returns The list of servers that satisfy the requirements of max staleness
+ */
+function maxStalenessReducer(readPreference, topologyDescription, servers) {
+    if (readPreference.maxStalenessSeconds == null || readPreference.maxStalenessSeconds < 0) {
+        return servers;
+    }
+    const maxStaleness = readPreference.maxStalenessSeconds;
+    const maxStalenessVariance = (topologyDescription.heartbeatFrequencyMS + IDLE_WRITE_PERIOD) / 1000;
+    if (maxStaleness < maxStalenessVariance) {
+        throw new error_1.MongoInvalidArgumentError(`Option "maxStalenessSeconds" must be at least ${maxStalenessVariance} seconds`);
+    }
+    if (maxStaleness < SMALLEST_MAX_STALENESS_SECONDS) {
+        throw new error_1.MongoInvalidArgumentError(`Option "maxStalenessSeconds" must be at least ${SMALLEST_MAX_STALENESS_SECONDS} seconds`);
+    }
+    if (topologyDescription.type === common_1.TopologyType.ReplicaSetWithPrimary) {
+        const primary = Array.from(topologyDescription.servers.values()).filter(primaryFilter)[0];
+        return servers.reduce((result, server) => {
+            const stalenessMS = server.lastUpdateTime -
+                server.lastWriteDate -
+                (primary.lastUpdateTime - primary.lastWriteDate) +
+                topologyDescription.heartbeatFrequencyMS;
+            const staleness = stalenessMS / 1000;
+            const maxStalenessSeconds = readPreference.maxStalenessSeconds ?? 0;
+            if (staleness <= maxStalenessSeconds) {
+                result.push(server);
+            }
+            return result;
+        }, []);
+    }
+    if (topologyDescription.type === common_1.TopologyType.ReplicaSetNoPrimary) {
+        if (servers.length === 0) {
+            return servers;
+        }
+        const sMax = servers.reduce((max, s) => s.lastWriteDate > max.lastWriteDate ? s : max);
+        return servers.reduce((result, server) => {
+            const stalenessMS = sMax.lastWriteDate - server.lastWriteDate + topologyDescription.heartbeatFrequencyMS;
+            const staleness = stalenessMS / 1000;
+            const maxStalenessSeconds = readPreference.maxStalenessSeconds ?? 0;
+            if (staleness <= maxStalenessSeconds) {
+                result.push(server);
+            }
+            return result;
+        }, []);
+    }
+    return servers;
+}
+/**
+ * Determines whether a server's tags match a given set of tags
+ *
+ * @param tagSet - The requested tag set to match
+ * @param serverTags - The server's tags
+ */
+function tagSetMatch(tagSet, serverTags) {
+    const keys = Object.keys(tagSet);
+    const serverTagKeys = Object.keys(serverTags);
+    for (let i = 0; i < keys.length; ++i) {
+        const key = keys[i];
+        if (serverTagKeys.indexOf(key) === -1 || serverTags[key] !== tagSet[key]) {
+            return false;
+        }
+    }
+    return true;
+}
+/**
+ * Reduces a set of server descriptions based on tags requested by the read preference
+ *
+ * @param readPreference - The read preference providing the requested tags
+ * @param servers - The list of server descriptions to reduce
+ * @returns The list of servers matching the requested tags
+ */
+function tagSetReducer(readPreference, servers) {
+    if (readPreference.tags == null ||
+        (Array.isArray(readPreference.tags) && readPreference.tags.length === 0)) {
+        return servers;
+    }
+    for (let i = 0; i < readPreference.tags.length; ++i) {
+        const tagSet = readPreference.tags[i];
+        const serversMatchingTagset = servers.reduce((matched, server) => {
+            if (tagSetMatch(tagSet, server.tags))
+                matched.push(server);
+            return matched;
+        }, []);
+        if (serversMatchingTagset.length) {
+            return serversMatchingTagset;
+        }
+    }
+    return [];
+}
+/**
+ * Reduces a list of servers to ensure they fall within an acceptable latency window. This is
+ * further specified in the "Server Selection" specification, found here:
+ *
+ * @see https://github.com/mongodb/specifications/blob/master/source/server-selection/server-selection.md
+ *
+ * @param topologyDescription - The topology description
+ * @param servers - The list of servers to reduce
+ * @returns The servers which fall within an acceptable latency window
+ */
+function latencyWindowReducer(topologyDescription, servers) {
+    const low = servers.reduce((min, server) => Math.min(server.roundTripTime, min), Infinity);
+    const high = low + topologyDescription.localThresholdMS;
+    return servers.reduce((result, server) => {
+        if (server.roundTripTime <= high && server.roundTripTime >= low)
+            result.push(server);
+        return result;
+    }, []);
+}
+// filters
+function primaryFilter(server) {
+    return server.type === common_1.ServerType.RSPrimary;
+}
+function secondaryFilter(server) {
+    return server.type === common_1.ServerType.RSSecondary;
+}
+function nearestFilter(server) {
+    return server.type === common_1.ServerType.RSSecondary || server.type === common_1.ServerType.RSPrimary;
+}
+function knownFilter(server) {
+    return server.type !== common_1.ServerType.Unknown;
+}
+function loadBalancerFilter(server) {
+    return server.type === common_1.ServerType.LoadBalancer;
+}
+/**
+ * Returns a function which selects servers based on a provided read preference
+ *
+ * @param readPreference - The read preference to select with
+ */
+function readPreferenceServerSelector(readPreference) {
+    if (!readPreference.isValid()) {
+        throw new error_1.MongoInvalidArgumentError('Invalid read preference specified');
+    }
+    return function readPreferenceServers(topologyDescription, servers, deprioritized = []) {
+        const commonWireVersion = topologyDescription.commonWireVersion;
+        if (commonWireVersion &&
+            readPreference.minWireVersion &&
+            readPreference.minWireVersion > commonWireVersion) {
+            throw new error_1.MongoCompatibilityError(`Minimum wire version '${readPreference.minWireVersion}' required, but found '${commonWireVersion}'`);
+        }
+        if (topologyDescription.type === common_1.TopologyType.LoadBalanced) {
+            return servers.filter(loadBalancerFilter);
+        }
+        if (topologyDescription.type === common_1.TopologyType.Unknown) {
+            return [];
+        }
+        if (topologyDescription.type === common_1.TopologyType.Single) {
+            return latencyWindowReducer(topologyDescription, servers.filter(knownFilter));
+        }
+        if (topologyDescription.type === common_1.TopologyType.Sharded) {
+            const filtered = servers.filter(server => {
+                return !deprioritized.includes(server);
+            });
+            const selectable = filtered.length > 0 ? filtered : deprioritized;
+            return latencyWindowReducer(topologyDescription, selectable.filter(knownFilter));
+        }
+        const mode = readPreference.mode;
+        if (mode === read_preference_1.ReadPreference.PRIMARY) {
+            return servers.filter(primaryFilter);
+        }
+        if (mode === read_preference_1.ReadPreference.PRIMARY_PREFERRED) {
+            const result = servers.filter(primaryFilter);
+            if (result.length) {
+                return result;
+            }
+        }
+        const filter = mode === read_preference_1.ReadPreference.NEAREST ? nearestFilter : secondaryFilter;
+        const selectedServers = latencyWindowReducer(topologyDescription, tagSetReducer(readPreference, maxStalenessReducer(readPreference, topologyDescription, servers.filter(filter))));
+        if (mode === read_preference_1.ReadPreference.SECONDARY_PREFERRED && selectedServers.length === 0) {
+            return servers.filter(primaryFilter);
+        }
+        return selectedServers;
+    };
+}
+//# sourceMappingURL=server_selection.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/sdam/server_selection.js.map b/backend/node_modules/mongodb/lib/sdam/server_selection.js.map
new file mode 100644
index 0000000..5785763
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/sdam/server_selection.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/sdam/server_selection_events.js b/backend/node_modules/mongodb/lib/sdam/server_selection_events.js
new file mode 100644
index 0000000..20bc95b
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/sdam/server_selection_events.js
@@ -0,0 +1,85 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.WaitingForSuitableServerEvent = exports.ServerSelectionSucceededEvent = exports.ServerSelectionFailedEvent = exports.ServerSelectionStartedEvent = exports.ServerSelectionEvent = void 0;
+const utils_1 = require(".././utils");
+const constants_1 = require("../constants");
+/**
+ * The base export class for all logs published from server selection
+ * @internal
+ * @category Log Type
+ */
+class ServerSelectionEvent {
+    /** @internal */
+    constructor(selector, topologyDescription, operation) {
+        this.selector = selector;
+        this.operation = operation;
+        this.topologyDescription = topologyDescription;
+    }
+}
+exports.ServerSelectionEvent = ServerSelectionEvent;
+/**
+ * An event published when server selection starts
+ * @internal
+ * @category Event
+ */
+class ServerSelectionStartedEvent extends ServerSelectionEvent {
+    /** @internal */
+    constructor(selector, topologyDescription, operation) {
+        super(selector, topologyDescription, operation);
+        /** @internal */
+        this.name = constants_1.SERVER_SELECTION_STARTED;
+        this.message = 'Server selection started';
+    }
+}
+exports.ServerSelectionStartedEvent = ServerSelectionStartedEvent;
+/**
+ * An event published when a server selection fails
+ * @internal
+ * @category Event
+ */
+class ServerSelectionFailedEvent extends ServerSelectionEvent {
+    /** @internal */
+    constructor(selector, topologyDescription, error, operation) {
+        super(selector, topologyDescription, operation);
+        /** @internal */
+        this.name = constants_1.SERVER_SELECTION_FAILED;
+        this.message = 'Server selection failed';
+        this.failure = error;
+    }
+}
+exports.ServerSelectionFailedEvent = ServerSelectionFailedEvent;
+/**
+ * An event published when server selection succeeds
+ * @internal
+ * @category Event
+ */
+class ServerSelectionSucceededEvent extends ServerSelectionEvent {
+    /** @internal */
+    constructor(selector, topologyDescription, address, operation) {
+        super(selector, topologyDescription, operation);
+        /** @internal */
+        this.name = constants_1.SERVER_SELECTION_SUCCEEDED;
+        this.message = 'Server selection succeeded';
+        const { host, port } = utils_1.HostAddress.fromString(address).toHostPort();
+        this.serverHost = host;
+        this.serverPort = port;
+    }
+}
+exports.ServerSelectionSucceededEvent = ServerSelectionSucceededEvent;
+/**
+ * An event published when server selection is waiting for a suitable server to become available
+ * @internal
+ * @category Event
+ */
+class WaitingForSuitableServerEvent extends ServerSelectionEvent {
+    /** @internal */
+    constructor(selector, topologyDescription, remainingTimeMS, operation) {
+        super(selector, topologyDescription, operation);
+        /** @internal */
+        this.name = constants_1.WAITING_FOR_SUITABLE_SERVER;
+        this.message = 'Waiting for suitable server to become available';
+        this.remainingTimeMS = remainingTimeMS;
+    }
+}
+exports.WaitingForSuitableServerEvent = WaitingForSuitableServerEvent;
+//# sourceMappingURL=server_selection_events.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/sdam/server_selection_events.js.map b/backend/node_modules/mongodb/lib/sdam/server_selection_events.js.map
new file mode 100644
index 0000000..b6c719e
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/sdam/server_selection_events.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"server_selection_events.js","sourceRoot":"","sources":["../../src/sdam/server_selection_events.ts"],"names":[],"mappings":";;;AAAA,sCAAyC;AACzC,4CAKsB;AAKtB;;;;GAIG;AACH,MAAsB,oBAAoB;IAmBxC,gBAAgB;IAChB,YACE,QAAkD,EAClD,mBAAwC,EACxC,SAAiB;QAEjB,IAAI,CAAC,QAAQ,GAAG,QAAQ,CAAC;QACzB,IAAI,CAAC,SAAS,GAAG,SAAS,CAAC;QAC3B,IAAI,CAAC,mBAAmB,GAAG,mBAAmB,CAAC;IACjD,CAAC;CACF;AA7BD,oDA6BC;AAED;;;;GAIG;AACH,MAAa,2BAA4B,SAAQ,oBAAoB;IAKnE,gBAAgB;IAChB,YACE,QAAkD,EAClD,mBAAwC,EACxC,SAAiB;QAEjB,KAAK,CAAC,QAAQ,EAAE,mBAAmB,EAAE,SAAS,CAAC,CAAC;QAVlD,gBAAgB;QAChB,SAAI,GAAG,oCAAwB,CAAC;QAChC,YAAO,GAAG,0BAA0B,CAAC;IASrC,CAAC;CACF;AAbD,kEAaC;AAED;;;;GAIG;AACH,MAAa,0BAA2B,SAAQ,oBAAoB;IAOlE,gBAAgB;IAChB,YACE,QAAkD,EAClD,mBAAwC,EACxC,KAAY,EACZ,SAAiB;QAEjB,KAAK,CAAC,QAAQ,EAAE,mBAAmB,EAAE,SAAS,CAAC,CAAC;QAblD,gBAAgB;QAChB,SAAI,GAAG,mCAAuB,CAAC;QAC/B,YAAO,GAAG,yBAAyB,CAAC;QAYlC,IAAI,CAAC,OAAO,GAAG,KAAK,CAAC;IACvB,CAAC;CACF;AAjBD,gEAiBC;AAED;;;;GAIG;AACH,MAAa,6BAA8B,SAAQ,oBAAoB;IASrE,gBAAgB;IAChB,YACE,QAAkD,EAClD,mBAAwC,EACxC,OAAe,EACf,SAAiB;QAEjB,KAAK,CAAC,QAAQ,EAAE,mBAAmB,EAAE,SAAS,CAAC,CAAC;QAflD,gBAAgB;QAChB,SAAI,GAAG,sCAA0B,CAAC;QAClC,YAAO,GAAG,4BAA4B,CAAC;QAcrC,MAAM,EAAE,IAAI,EAAE,IAAI,EAAE,GAAG,mBAAW,CAAC,UAAU,CAAC,OAAO,CAAC,CAAC,UAAU,EAAE,CAAC;QACpE,IAAI,CAAC,UAAU,GAAG,IAAI,CAAC;QACvB,IAAI,CAAC,UAAU,GAAG,IAAI,CAAC;IACzB,CAAC;CACF;AArBD,sEAqBC;AAED;;;;GAIG;AACH,MAAa,6BAA8B,SAAQ,oBAAoB;IAOrE,gBAAgB;IAChB,YACE,QAAkD,EAClD,mBAAwC,EACxC,eAAuB,EACvB,SAAiB;QAEjB,KAAK,CAAC,QAAQ,EAAE,mBAAmB,EAAE,SAAS,CAAC,CAAC;QAblD,gBAAgB;QAChB,SAAI,GAAG,uCAA2B,CAAC;QACnC,YAAO,GAAG,iDAAiD,CAAC;QAY1D,IAAI,CAAC,eAAe,GAAG,eAAe,CAAC;IACzC,CAAC;CACF;AAjBD,sEAiBC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/sdam/srv_polling.js b/backend/node_modules/mongodb/lib/sdam/srv_polling.js
new file mode 100644
index 0000000..b65bc2e
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/sdam/srv_polling.js
@@ -0,0 +1,107 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.SrvPoller = exports.SrvPollingEvent = void 0;
+const dns = require("dns");
+const timers_1 = require("timers");
+const error_1 = require("../error");
+const mongo_types_1 = require("../mongo_types");
+const utils_1 = require("../utils");
+/**
+ * @internal
+ * @category Event
+ */
+class SrvPollingEvent {
+    constructor(srvRecords) {
+        this.srvRecords = srvRecords;
+    }
+    hostnames() {
+        return new Set(this.srvRecords.map(r => utils_1.HostAddress.fromSrvRecord(r).toString()));
+    }
+}
+exports.SrvPollingEvent = SrvPollingEvent;
+/** @internal */
+class SrvPoller extends mongo_types_1.TypedEventEmitter {
+    constructor(options) {
+        super();
+        if (!options || !options.srvHost) {
+            throw new error_1.MongoRuntimeError('Options for SrvPoller must exist and include srvHost');
+        }
+        this.srvHost = options.srvHost;
+        this.srvMaxHosts = options.srvMaxHosts ?? 0;
+        this.srvServiceName = options.srvServiceName ?? 'mongodb';
+        this.rescanSrvIntervalMS = 60000;
+        this.heartbeatFrequencyMS = options.heartbeatFrequencyMS ?? 10000;
+        this.haMode = false;
+        this.generation = 0;
+        this._timeout = undefined;
+    }
+    get srvAddress() {
+        return `_${this.srvServiceName}._tcp.${this.srvHost}`;
+    }
+    get intervalMS() {
+        return this.haMode ? this.heartbeatFrequencyMS : this.rescanSrvIntervalMS;
+    }
+    start() {
+        if (!this._timeout) {
+            this.schedule();
+        }
+    }
+    stop() {
+        if (this._timeout) {
+            (0, timers_1.clearTimeout)(this._timeout);
+            this.generation += 1;
+            this._timeout = undefined;
+        }
+    }
+    // TODO(NODE-4994): implement new logging logic for SrvPoller failures
+    schedule() {
+        if (this._timeout) {
+            (0, timers_1.clearTimeout)(this._timeout);
+        }
+        this._timeout = (0, timers_1.setTimeout)(() => {
+            this._poll().then(undefined, utils_1.squashError);
+        }, this.intervalMS);
+    }
+    success(srvRecords) {
+        this.haMode = false;
+        this.schedule();
+        this.emit(SrvPoller.SRV_RECORD_DISCOVERY, new SrvPollingEvent(srvRecords));
+    }
+    failure() {
+        this.haMode = true;
+        this.schedule();
+    }
+    async _poll() {
+        const generation = this.generation;
+        let srvRecords;
+        try {
+            srvRecords = await dns.promises.resolveSrv(this.srvAddress);
+        }
+        catch {
+            this.failure();
+            return;
+        }
+        if (generation !== this.generation) {
+            return;
+        }
+        const finalAddresses = [];
+        for (const record of srvRecords) {
+            try {
+                (0, utils_1.checkParentDomainMatch)(record.name, this.srvHost);
+                finalAddresses.push(record);
+            }
+            catch (error) {
+                (0, utils_1.squashError)(error);
+            }
+        }
+        if (!finalAddresses.length) {
+            this.failure();
+            return;
+        }
+        this.success(finalAddresses);
+    }
+}
+exports.SrvPoller = SrvPoller;
+/** @event */
+SrvPoller.SRV_RECORD_DISCOVERY = 'srvRecordDiscovery';
+//# sourceMappingURL=srv_polling.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/sdam/srv_polling.js.map b/backend/node_modules/mongodb/lib/sdam/srv_polling.js.map
new file mode 100644
index 0000000..fcd1dd7
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/sdam/srv_polling.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"srv_polling.js","sourceRoot":"","sources":["../../src/sdam/srv_polling.ts"],"names":[],"mappings":";;;AAAA,2BAA2B;AAC3B,mCAAkD;AAElD,oCAA6C;AAC7C,gDAAmD;AACnD,oCAA4E;AAE5E;;;GAGG;AACH,MAAa,eAAe;IAE1B,YAAY,UAA2B;QACrC,IAAI,CAAC,UAAU,GAAG,UAAU,CAAC;IAC/B,CAAC;IAED,SAAS;QACP,OAAO,IAAI,GAAG,CAAC,IAAI,CAAC,UAAU,CAAC,GAAG,CAAC,CAAC,CAAC,EAAE,CAAC,mBAAW,CAAC,aAAa,CAAC,CAAC,CAAC,CAAC,QAAQ,EAAE,CAAC,CAAC,CAAC;IACpF,CAAC;CACF;AATD,0CASC;AAeD,gBAAgB;AAChB,MAAa,SAAU,SAAQ,+BAAkC;IAa/D,YAAY,OAAyB;QACnC,KAAK,EAAE,CAAC;QAER,IAAI,CAAC,OAAO,IAAI,CAAC,OAAO,CAAC,OAAO,EAAE,CAAC;YACjC,MAAM,IAAI,yBAAiB,CAAC,sDAAsD,CAAC,CAAC;QACtF,CAAC;QAED,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC,OAAO,CAAC;QAC/B,IAAI,CAAC,WAAW,GAAG,OAAO,CAAC,WAAW,IAAI,CAAC,CAAC;QAC5C,IAAI,CAAC,cAAc,GAAG,OAAO,CAAC,cAAc,IAAI,SAAS,CAAC;QAC1D,IAAI,CAAC,mBAAmB,GAAG,KAAK,CAAC;QACjC,IAAI,CAAC,oBAAoB,GAAG,OAAO,CAAC,oBAAoB,IAAI,KAAK,CAAC;QAElE,IAAI,CAAC,MAAM,GAAG,KAAK,CAAC;QACpB,IAAI,CAAC,UAAU,GAAG,CAAC,CAAC;QAEpB,IAAI,CAAC,QAAQ,GAAG,SAAS,CAAC;IAC5B,CAAC;IAED,IAAI,UAAU;QACZ,OAAO,IAAI,IAAI,CAAC,cAAc,SAAS,IAAI,CAAC,OAAO,EAAE,CAAC;IACxD,CAAC;IAED,IAAI,UAAU;QACZ,OAAO,IAAI,CAAC,MAAM,CAAC,CAAC,CAAC,IAAI,CAAC,oBAAoB,CAAC,CAAC,CAAC,IAAI,CAAC,mBAAmB,CAAC;IAC5E,CAAC;IAED,KAAK;QACH,IAAI,CAAC,IAAI,CAAC,QAAQ,EAAE,CAAC;YACnB,IAAI,CAAC,QAAQ,EAAE,CAAC;QAClB,CAAC;IACH,CAAC;IAED,IAAI;QACF,IAAI,IAAI,CAAC,QAAQ,EAAE,CAAC;YAClB,IAAA,qBAAY,EAAC,IAAI,CAAC,QAAQ,CAAC,CAAC;YAC5B,IAAI,CAAC,UAAU,IAAI,CAAC,CAAC;YACrB,IAAI,CAAC,QAAQ,GAAG,SAAS,CAAC;QAC5B,CAAC;IACH,CAAC;IAED,sEAAsE;IACtE,QAAQ;QACN,IAAI,IAAI,CAAC,QAAQ,EAAE,CAAC;YAClB,IAAA,qBAAY,EAAC,IAAI,CAAC,QAAQ,CAAC,CAAC;QAC9B,CAAC;QAED,IAAI,CAAC,QAAQ,GAAG,IAAA,mBAAU,EAAC,GAAG,EAAE;YAC9B,IAAI,CAAC,KAAK,EAAE,CAAC,IAAI,CAAC,SAAS,EAAE,mBAAW,CAAC,CAAC;QAC5C,CAAC,EAAE,IAAI,CAAC,UAAU,CAAC,CAAC;IACtB,CAAC;IAED,OAAO,CAAC,UAA2B;QACjC,IAAI,CAAC,MAAM,GAAG,KAAK,CAAC;QACpB,IAAI,CAAC,QAAQ,EAAE,CAAC;QAChB,IAAI,CAAC,IAAI,CAAC,SAAS,CAAC,oBAAoB,EAAE,IAAI,eAAe,CAAC,UAAU,CAAC,CAAC,CAAC;IAC7E,CAAC;IAED,OAAO;QACL,IAAI,CAAC,MAAM,GAAG,IAAI,CAAC;QACnB,IAAI,CAAC,QAAQ,EAAE,CAAC;IAClB,CAAC;IAED,KAAK,CAAC,KAAK;QACT,MAAM,UAAU,GAAG,IAAI,CAAC,UAAU,CAAC;QACnC,IAAI,UAAU,CAAC;QAEf,IAAI,CAAC;YACH,UAAU,GAAG,MAAM,GAAG,CAAC,QAAQ,CAAC,UAAU,CAAC,IAAI,CAAC,UAAU,CAAC,CAAC;QAC9D,CAAC;QAAC,MAAM,CAAC;YACP,IAAI,CAAC,OAAO,EAAE,CAAC;YACf,OAAO;QACT,CAAC;QAED,IAAI,UAAU,KAAK,IAAI,CAAC,UAAU,EAAE,CAAC;YACnC,OAAO;QACT,CAAC;QAED,MAAM,cAAc,GAAoB,EAAE,CAAC;QAC3C,KAAK,MAAM,MAAM,IAAI,UAAU,EAAE,CAAC;YAChC,IAAI,CAAC;gBACH,IAAA,8BAAsB,EAAC,MAAM,CAAC,IAAI,EAAE,IAAI,CAAC,OAAO,CAAC,CAAC;gBAClD,cAAc,CAAC,IAAI,CAAC,MAAM,CAAC,CAAC;YAC9B,CAAC;YAAC,OAAO,KAAK,EAAE,CAAC;gBACf,IAAA,mBAAW,EAAC,KAAK,CAAC,CAAC;YACrB,CAAC;QACH,CAAC;QAED,IAAI,CAAC,cAAc,CAAC,MAAM,EAAE,CAAC;YAC3B,IAAI,CAAC,OAAO,EAAE,CAAC;YACf,OAAO;QACT,CAAC;QAED,IAAI,CAAC,OAAO,CAAC,cAAc,CAAC,CAAC;IAC/B,CAAC;;AA3GH,8BA4GC;AAlGC,aAAa;AACG,8BAAoB,GAAG,oBAA6B,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/sdam/topology.js b/backend/node_modules/mongodb/lib/sdam/topology.js
new file mode 100644
index 0000000..8f1ecf8
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/sdam/topology.js
@@ -0,0 +1,683 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ServerCapabilities = exports.Topology = void 0;
+const connection_string_1 = require("../connection_string");
+const constants_1 = require("../constants");
+const error_1 = require("../error");
+const mongo_logger_1 = require("../mongo_logger");
+const mongo_types_1 = require("../mongo_types");
+const read_preference_1 = require("../read_preference");
+const timeout_1 = require("../timeout");
+const utils_1 = require("../utils");
+const common_1 = require("./common");
+const events_1 = require("./events");
+const server_1 = require("./server");
+const server_description_1 = require("./server_description");
+const server_selection_1 = require("./server_selection");
+const server_selection_events_1 = require("./server_selection_events");
+const srv_polling_1 = require("./srv_polling");
+const topology_description_1 = require("./topology_description");
+// Global state
+let globalTopologyCounter = 0;
+const stateTransition = (0, utils_1.makeStateMachine)({
+    [common_1.STATE_CLOSED]: [common_1.STATE_CLOSED, common_1.STATE_CONNECTING],
+    [common_1.STATE_CONNECTING]: [common_1.STATE_CONNECTING, common_1.STATE_CLOSING, common_1.STATE_CONNECTED, common_1.STATE_CLOSED],
+    [common_1.STATE_CONNECTED]: [common_1.STATE_CONNECTED, common_1.STATE_CLOSING, common_1.STATE_CLOSED],
+    [common_1.STATE_CLOSING]: [common_1.STATE_CLOSING, common_1.STATE_CLOSED]
+});
+/** @internal */
+const kCancelled = Symbol('cancelled');
+/** @internal */
+const kWaitQueue = Symbol('waitQueue');
+/**
+ * A container of server instances representing a connection to a MongoDB topology.
+ * @internal
+ */
+class Topology extends mongo_types_1.TypedEventEmitter {
+    /**
+     * @param seedlist - a list of HostAddress instances to connect to
+     */
+    constructor(client, seeds, options) {
+        super();
+        this.client = client;
+        // Options should only be undefined in tests, MongoClient will always have defined options
+        options = options ?? {
+            hosts: [utils_1.HostAddress.fromString('localhost:27017')],
+            ...Object.fromEntries(connection_string_1.DEFAULT_OPTIONS.entries()),
+            ...Object.fromEntries(connection_string_1.FEATURE_FLAGS.entries())
+        };
+        if (typeof seeds === 'string') {
+            seeds = [utils_1.HostAddress.fromString(seeds)];
+        }
+        else if (!Array.isArray(seeds)) {
+            seeds = [seeds];
+        }
+        const seedlist = [];
+        for (const seed of seeds) {
+            if (typeof seed === 'string') {
+                seedlist.push(utils_1.HostAddress.fromString(seed));
+            }
+            else if (seed instanceof utils_1.HostAddress) {
+                seedlist.push(seed);
+            }
+            else {
+                // FIXME(NODE-3483): May need to be a MongoParseError
+                throw new error_1.MongoRuntimeError(`Topology cannot be constructed from ${JSON.stringify(seed)}`);
+            }
+        }
+        const topologyType = topologyTypeFromOptions(options);
+        const topologyId = globalTopologyCounter++;
+        const selectedHosts = options.srvMaxHosts == null ||
+            options.srvMaxHosts === 0 ||
+            options.srvMaxHosts >= seedlist.length
+            ? seedlist
+            : (0, utils_1.shuffle)(seedlist, options.srvMaxHosts);
+        const serverDescriptions = new Map();
+        for (const hostAddress of selectedHosts) {
+            serverDescriptions.set(hostAddress.toString(), new server_description_1.ServerDescription(hostAddress));
+        }
+        this[kWaitQueue] = new utils_1.List();
+        this.s = {
+            // the id of this topology
+            id: topologyId,
+            // passed in options
+            options,
+            // initial seedlist of servers to connect to
+            seedlist,
+            // initial state
+            state: common_1.STATE_CLOSED,
+            // the topology description
+            description: new topology_description_1.TopologyDescription(topologyType, serverDescriptions, options.replicaSet, undefined, undefined, undefined, options),
+            serverSelectionTimeoutMS: options.serverSelectionTimeoutMS,
+            heartbeatFrequencyMS: options.heartbeatFrequencyMS,
+            minHeartbeatFrequencyMS: options.minHeartbeatFrequencyMS,
+            // a map of server instances to normalized addresses
+            servers: new Map(),
+            credentials: options?.credentials,
+            clusterTime: undefined,
+            detectShardedTopology: ev => this.detectShardedTopology(ev),
+            detectSrvRecords: ev => this.detectSrvRecords(ev)
+        };
+        this.mongoLogger = client.mongoLogger;
+        this.component = 'topology';
+        if (options.srvHost && !options.loadBalanced) {
+            this.s.srvPoller =
+                options.srvPoller ??
+                    new srv_polling_1.SrvPoller({
+                        heartbeatFrequencyMS: this.s.heartbeatFrequencyMS,
+                        srvHost: options.srvHost,
+                        srvMaxHosts: options.srvMaxHosts,
+                        srvServiceName: options.srvServiceName
+                    });
+            this.on(Topology.TOPOLOGY_DESCRIPTION_CHANGED, this.s.detectShardedTopology);
+        }
+        this.connectionLock = undefined;
+    }
+    detectShardedTopology(event) {
+        const previousType = event.previousDescription.type;
+        const newType = event.newDescription.type;
+        const transitionToSharded = previousType !== common_1.TopologyType.Sharded && newType === common_1.TopologyType.Sharded;
+        const srvListeners = this.s.srvPoller?.listeners(srv_polling_1.SrvPoller.SRV_RECORD_DISCOVERY);
+        const listeningToSrvPolling = !!srvListeners?.includes(this.s.detectSrvRecords);
+        if (transitionToSharded && !listeningToSrvPolling) {
+            this.s.srvPoller?.on(srv_polling_1.SrvPoller.SRV_RECORD_DISCOVERY, this.s.detectSrvRecords);
+            this.s.srvPoller?.start();
+        }
+    }
+    detectSrvRecords(ev) {
+        const previousTopologyDescription = this.s.description;
+        this.s.description = this.s.description.updateFromSrvPollingEvent(ev, this.s.options.srvMaxHosts);
+        if (this.s.description === previousTopologyDescription) {
+            // Nothing changed, so return
+            return;
+        }
+        updateServers(this);
+        this.emitAndLog(Topology.TOPOLOGY_DESCRIPTION_CHANGED, new events_1.TopologyDescriptionChangedEvent(this.s.id, previousTopologyDescription, this.s.description));
+    }
+    /**
+     * @returns A `TopologyDescription` for this topology
+     */
+    get description() {
+        return this.s.description;
+    }
+    get loadBalanced() {
+        return this.s.options.loadBalanced;
+    }
+    get serverApi() {
+        return this.s.options.serverApi;
+    }
+    get capabilities() {
+        return new ServerCapabilities(this.lastHello());
+    }
+    /** Initiate server connect */
+    async connect(options) {
+        this.connectionLock ??= this._connect(options);
+        try {
+            await this.connectionLock;
+            return this;
+        }
+        finally {
+            this.connectionLock = undefined;
+        }
+    }
+    async _connect(options) {
+        options = options ?? {};
+        if (this.s.state === common_1.STATE_CONNECTED) {
+            return this;
+        }
+        stateTransition(this, common_1.STATE_CONNECTING);
+        // emit SDAM monitoring events
+        this.emitAndLog(Topology.TOPOLOGY_OPENING, new events_1.TopologyOpeningEvent(this.s.id));
+        // emit an event for the topology change
+        this.emitAndLog(Topology.TOPOLOGY_DESCRIPTION_CHANGED, new events_1.TopologyDescriptionChangedEvent(this.s.id, new topology_description_1.TopologyDescription(common_1.TopologyType.Unknown), // initial is always Unknown
+        this.s.description));
+        // connect all known servers, then attempt server selection to connect
+        const serverDescriptions = Array.from(this.s.description.servers.values());
+        this.s.servers = new Map(serverDescriptions.map(serverDescription => [
+            serverDescription.address,
+            createAndConnectServer(this, serverDescription)
+        ]));
+        // In load balancer mode we need to fake a server description getting
+        // emitted from the monitor, since the monitor doesn't exist.
+        if (this.s.options.loadBalanced) {
+            for (const description of serverDescriptions) {
+                const newDescription = new server_description_1.ServerDescription(description.hostAddress, undefined, {
+                    loadBalanced: this.s.options.loadBalanced
+                });
+                this.serverUpdateHandler(newDescription);
+            }
+        }
+        const serverSelectionTimeoutMS = this.client.s.options.serverSelectionTimeoutMS;
+        const readPreference = options.readPreference ?? read_preference_1.ReadPreference.primary;
+        const timeoutContext = timeout_1.TimeoutContext.create({
+            // TODO(NODE-6448): auto-connect ignores timeoutMS; potential future feature
+            timeoutMS: undefined,
+            serverSelectionTimeoutMS,
+            waitQueueTimeoutMS: this.client.s.options.waitQueueTimeoutMS
+        });
+        const selectServerOptions = {
+            operationName: 'ping',
+            ...options,
+            timeoutContext
+        };
+        try {
+            const server = await this.selectServer((0, server_selection_1.readPreferenceServerSelector)(readPreference), selectServerOptions);
+            const skipPingOnConnect = this.s.options[Symbol.for('@@mdb.skipPingOnConnect')] === true;
+            if (!skipPingOnConnect && this.s.credentials) {
+                await server.command((0, utils_1.ns)('admin.$cmd'), { ping: 1 }, { timeoutContext });
+                stateTransition(this, common_1.STATE_CONNECTED);
+                this.emit(Topology.OPEN, this);
+                this.emit(Topology.CONNECT, this);
+                return this;
+            }
+            stateTransition(this, common_1.STATE_CONNECTED);
+            this.emit(Topology.OPEN, this);
+            this.emit(Topology.CONNECT, this);
+            return this;
+        }
+        catch (error) {
+            this.close();
+            throw error;
+        }
+    }
+    /** Close this topology */
+    close() {
+        if (this.s.state === common_1.STATE_CLOSED || this.s.state === common_1.STATE_CLOSING) {
+            return;
+        }
+        for (const server of this.s.servers.values()) {
+            destroyServer(server, this);
+        }
+        this.s.servers.clear();
+        stateTransition(this, common_1.STATE_CLOSING);
+        drainWaitQueue(this[kWaitQueue], new error_1.MongoTopologyClosedError());
+        if (this.s.srvPoller) {
+            this.s.srvPoller.stop();
+            this.s.srvPoller.removeListener(srv_polling_1.SrvPoller.SRV_RECORD_DISCOVERY, this.s.detectSrvRecords);
+        }
+        this.removeListener(Topology.TOPOLOGY_DESCRIPTION_CHANGED, this.s.detectShardedTopology);
+        stateTransition(this, common_1.STATE_CLOSED);
+        // emit an event for close
+        this.emitAndLog(Topology.TOPOLOGY_CLOSED, new events_1.TopologyClosedEvent(this.s.id));
+    }
+    /**
+     * Selects a server according to the selection predicate provided
+     *
+     * @param selector - An optional selector to select servers by, defaults to a random selection within a latency window
+     * @param options - Optional settings related to server selection
+     * @param callback - The callback used to indicate success or failure
+     * @returns An instance of a `Server` meeting the criteria of the predicate provided
+     */
+    async selectServer(selector, options) {
+        let serverSelector;
+        if (typeof selector !== 'function') {
+            if (typeof selector === 'string') {
+                serverSelector = (0, server_selection_1.readPreferenceServerSelector)(read_preference_1.ReadPreference.fromString(selector));
+            }
+            else {
+                let readPreference;
+                if (selector instanceof read_preference_1.ReadPreference) {
+                    readPreference = selector;
+                }
+                else {
+                    read_preference_1.ReadPreference.translate(options);
+                    readPreference = options.readPreference || read_preference_1.ReadPreference.primary;
+                }
+                serverSelector = (0, server_selection_1.readPreferenceServerSelector)(readPreference);
+            }
+        }
+        else {
+            serverSelector = selector;
+        }
+        options = { serverSelectionTimeoutMS: this.s.serverSelectionTimeoutMS, ...options };
+        if (this.client.mongoLogger?.willLog(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, mongo_logger_1.SeverityLevel.DEBUG)) {
+            this.client.mongoLogger?.debug(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, new server_selection_events_1.ServerSelectionStartedEvent(selector, this.description, options.operationName));
+        }
+        let timeout;
+        if (options.timeoutContext)
+            timeout = options.timeoutContext.serverSelectionTimeout;
+        else {
+            timeout = timeout_1.Timeout.expires(options.serverSelectionTimeoutMS ?? 0);
+        }
+        const isSharded = this.description.type === common_1.TopologyType.Sharded;
+        const session = options.session;
+        const transaction = session && session.transaction;
+        if (isSharded && transaction && transaction.server) {
+            if (this.client.mongoLogger?.willLog(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, mongo_logger_1.SeverityLevel.DEBUG)) {
+                this.client.mongoLogger?.debug(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, new server_selection_events_1.ServerSelectionSucceededEvent(selector, this.description, transaction.server.pool.address, options.operationName));
+            }
+            if (options.timeoutContext?.clearServerSelectionTimeout)
+                timeout?.clear();
+            return transaction.server;
+        }
+        const { promise: serverPromise, resolve, reject } = (0, utils_1.promiseWithResolvers)();
+        const waitQueueMember = {
+            serverSelector,
+            topologyDescription: this.description,
+            mongoLogger: this.client.mongoLogger,
+            transaction,
+            resolve,
+            reject,
+            startTime: (0, utils_1.now)(),
+            operationName: options.operationName,
+            waitingLogged: false,
+            previousServer: options.previousServer
+        };
+        this[kWaitQueue].push(waitQueueMember);
+        processWaitQueue(this);
+        try {
+            timeout?.throwIfExpired();
+            const server = await (timeout ? Promise.race([serverPromise, timeout]) : serverPromise);
+            if (options.timeoutContext?.csotEnabled() && server.description.minRoundTripTime !== 0) {
+                options.timeoutContext.minRoundTripTime = server.description.minRoundTripTime;
+            }
+            return server;
+        }
+        catch (error) {
+            if (timeout_1.TimeoutError.is(error)) {
+                // Timeout
+                waitQueueMember[kCancelled] = true;
+                const timeoutError = new error_1.MongoServerSelectionError(`Server selection timed out after ${timeout?.duration} ms`, this.description);
+                if (this.client.mongoLogger?.willLog(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, mongo_logger_1.SeverityLevel.DEBUG)) {
+                    this.client.mongoLogger?.debug(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, new server_selection_events_1.ServerSelectionFailedEvent(selector, this.description, timeoutError, options.operationName));
+                }
+                if (options.timeoutContext?.csotEnabled()) {
+                    throw new error_1.MongoOperationTimeoutError('Timed out during server selection', {
+                        cause: timeoutError
+                    });
+                }
+                throw timeoutError;
+            }
+            // Other server selection error
+            throw error;
+        }
+        finally {
+            if (options.timeoutContext?.clearServerSelectionTimeout)
+                timeout?.clear();
+        }
+    }
+    /**
+     * Update the internal TopologyDescription with a ServerDescription
+     *
+     * @param serverDescription - The server to update in the internal list of server descriptions
+     */
+    serverUpdateHandler(serverDescription) {
+        if (!this.s.description.hasServer(serverDescription.address)) {
+            return;
+        }
+        // ignore this server update if its from an outdated topologyVersion
+        if (isStaleServerDescription(this.s.description, serverDescription)) {
+            return;
+        }
+        // these will be used for monitoring events later
+        const previousTopologyDescription = this.s.description;
+        const previousServerDescription = this.s.description.servers.get(serverDescription.address);
+        if (!previousServerDescription) {
+            return;
+        }
+        // Driver Sessions Spec: "Whenever a driver receives a cluster time from
+        // a server it MUST compare it to the current highest seen cluster time
+        // for the deployment. If the new cluster time is higher than the
+        // highest seen cluster time it MUST become the new highest seen cluster
+        // time. Two cluster times are compared using only the BsonTimestamp
+        // value of the clusterTime embedded field."
+        const clusterTime = serverDescription.$clusterTime;
+        if (clusterTime) {
+            (0, common_1._advanceClusterTime)(this, clusterTime);
+        }
+        // If we already know all the information contained in this updated description, then
+        // we don't need to emit SDAM events, but still need to update the description, in order
+        // to keep client-tracked attributes like last update time and round trip time up to date
+        const equalDescriptions = previousServerDescription && previousServerDescription.equals(serverDescription);
+        // first update the TopologyDescription
+        this.s.description = this.s.description.update(serverDescription);
+        if (this.s.description.compatibilityError) {
+            this.emit(Topology.ERROR, new error_1.MongoCompatibilityError(this.s.description.compatibilityError));
+            return;
+        }
+        // emit monitoring events for this change
+        if (!equalDescriptions) {
+            const newDescription = this.s.description.servers.get(serverDescription.address);
+            if (newDescription) {
+                this.emit(Topology.SERVER_DESCRIPTION_CHANGED, new events_1.ServerDescriptionChangedEvent(this.s.id, serverDescription.address, previousServerDescription, newDescription));
+            }
+        }
+        // update server list from updated descriptions
+        updateServers(this, serverDescription);
+        // attempt to resolve any outstanding server selection attempts
+        if (this[kWaitQueue].length > 0) {
+            processWaitQueue(this);
+        }
+        if (!equalDescriptions) {
+            this.emitAndLog(Topology.TOPOLOGY_DESCRIPTION_CHANGED, new events_1.TopologyDescriptionChangedEvent(this.s.id, previousTopologyDescription, this.s.description));
+        }
+    }
+    auth(credentials, callback) {
+        if (typeof credentials === 'function')
+            (callback = credentials), (credentials = undefined);
+        if (typeof callback === 'function')
+            callback(undefined, true);
+    }
+    get clientMetadata() {
+        return this.s.options.metadata;
+    }
+    isConnected() {
+        return this.s.state === common_1.STATE_CONNECTED;
+    }
+    isDestroyed() {
+        return this.s.state === common_1.STATE_CLOSED;
+    }
+    // NOTE: There are many places in code where we explicitly check the last hello
+    //       to do feature support detection. This should be done any other way, but for
+    //       now we will just return the first hello seen, which should suffice.
+    lastHello() {
+        const serverDescriptions = Array.from(this.description.servers.values());
+        if (serverDescriptions.length === 0)
+            return {};
+        const sd = serverDescriptions.filter((sd) => sd.type !== common_1.ServerType.Unknown)[0];
+        const result = sd || { maxWireVersion: this.description.commonWireVersion };
+        return result;
+    }
+    get commonWireVersion() {
+        return this.description.commonWireVersion;
+    }
+    get logicalSessionTimeoutMinutes() {
+        return this.description.logicalSessionTimeoutMinutes;
+    }
+    get clusterTime() {
+        return this.s.clusterTime;
+    }
+    set clusterTime(clusterTime) {
+        this.s.clusterTime = clusterTime;
+    }
+}
+exports.Topology = Topology;
+/** @event */
+Topology.SERVER_OPENING = constants_1.SERVER_OPENING;
+/** @event */
+Topology.SERVER_CLOSED = constants_1.SERVER_CLOSED;
+/** @event */
+Topology.SERVER_DESCRIPTION_CHANGED = constants_1.SERVER_DESCRIPTION_CHANGED;
+/** @event */
+Topology.TOPOLOGY_OPENING = constants_1.TOPOLOGY_OPENING;
+/** @event */
+Topology.TOPOLOGY_CLOSED = constants_1.TOPOLOGY_CLOSED;
+/** @event */
+Topology.TOPOLOGY_DESCRIPTION_CHANGED = constants_1.TOPOLOGY_DESCRIPTION_CHANGED;
+/** @event */
+Topology.ERROR = constants_1.ERROR;
+/** @event */
+Topology.OPEN = constants_1.OPEN;
+/** @event */
+Topology.CONNECT = constants_1.CONNECT;
+/** @event */
+Topology.CLOSE = constants_1.CLOSE;
+/** @event */
+Topology.TIMEOUT = constants_1.TIMEOUT;
+/** Destroys a server, and removes all event listeners from the instance */
+function destroyServer(server, topology) {
+    for (const event of constants_1.LOCAL_SERVER_EVENTS) {
+        server.removeAllListeners(event);
+    }
+    server.destroy();
+    topology.emitAndLog(Topology.SERVER_CLOSED, new events_1.ServerClosedEvent(topology.s.id, server.description.address));
+    for (const event of constants_1.SERVER_RELAY_EVENTS) {
+        server.removeAllListeners(event);
+    }
+}
+/** Predicts the TopologyType from options */
+function topologyTypeFromOptions(options) {
+    if (options?.directConnection) {
+        return common_1.TopologyType.Single;
+    }
+    if (options?.replicaSet) {
+        return common_1.TopologyType.ReplicaSetNoPrimary;
+    }
+    if (options?.loadBalanced) {
+        return common_1.TopologyType.LoadBalanced;
+    }
+    return common_1.TopologyType.Unknown;
+}
+/**
+ * Creates new server instances and attempts to connect them
+ *
+ * @param topology - The topology that this server belongs to
+ * @param serverDescription - The description for the server to initialize and connect to
+ */
+function createAndConnectServer(topology, serverDescription) {
+    topology.emitAndLog(Topology.SERVER_OPENING, new events_1.ServerOpeningEvent(topology.s.id, serverDescription.address));
+    const server = new server_1.Server(topology, serverDescription, topology.s.options);
+    for (const event of constants_1.SERVER_RELAY_EVENTS) {
+        server.on(event, (e) => topology.emit(event, e));
+    }
+    server.on(server_1.Server.DESCRIPTION_RECEIVED, description => topology.serverUpdateHandler(description));
+    server.connect();
+    return server;
+}
+/**
+ * @param topology - Topology to update.
+ * @param incomingServerDescription - New server description.
+ */
+function updateServers(topology, incomingServerDescription) {
+    // update the internal server's description
+    if (incomingServerDescription && topology.s.servers.has(incomingServerDescription.address)) {
+        const server = topology.s.servers.get(incomingServerDescription.address);
+        if (server) {
+            server.s.description = incomingServerDescription;
+            if (incomingServerDescription.error instanceof error_1.MongoError &&
+                incomingServerDescription.error.hasErrorLabel(error_1.MongoErrorLabel.ResetPool)) {
+                const interruptInUseConnections = incomingServerDescription.error.hasErrorLabel(error_1.MongoErrorLabel.InterruptInUseConnections);
+                server.pool.clear({ interruptInUseConnections });
+            }
+            else if (incomingServerDescription.error == null) {
+                const newTopologyType = topology.s.description.type;
+                const shouldMarkPoolReady = incomingServerDescription.isDataBearing ||
+                    (incomingServerDescription.type !== common_1.ServerType.Unknown &&
+                        newTopologyType === common_1.TopologyType.Single);
+                if (shouldMarkPoolReady) {
+                    server.pool.ready();
+                }
+            }
+        }
+    }
+    // add new servers for all descriptions we currently don't know about locally
+    for (const serverDescription of topology.description.servers.values()) {
+        if (!topology.s.servers.has(serverDescription.address)) {
+            const server = createAndConnectServer(topology, serverDescription);
+            topology.s.servers.set(serverDescription.address, server);
+        }
+    }
+    // for all servers no longer known, remove their descriptions and destroy their instances
+    for (const entry of topology.s.servers) {
+        const serverAddress = entry[0];
+        if (topology.description.hasServer(serverAddress)) {
+            continue;
+        }
+        if (!topology.s.servers.has(serverAddress)) {
+            continue;
+        }
+        const server = topology.s.servers.get(serverAddress);
+        topology.s.servers.delete(serverAddress);
+        // prepare server for garbage collection
+        if (server) {
+            destroyServer(server, topology);
+        }
+    }
+}
+function drainWaitQueue(queue, drainError) {
+    while (queue.length) {
+        const waitQueueMember = queue.shift();
+        if (!waitQueueMember) {
+            continue;
+        }
+        if (!waitQueueMember[kCancelled]) {
+            if (waitQueueMember.mongoLogger?.willLog(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, mongo_logger_1.SeverityLevel.DEBUG)) {
+                waitQueueMember.mongoLogger?.debug(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, new server_selection_events_1.ServerSelectionFailedEvent(waitQueueMember.serverSelector, waitQueueMember.topologyDescription, drainError, waitQueueMember.operationName));
+            }
+            waitQueueMember.reject(drainError);
+        }
+    }
+}
+function processWaitQueue(topology) {
+    if (topology.s.state === common_1.STATE_CLOSED) {
+        drainWaitQueue(topology[kWaitQueue], new error_1.MongoTopologyClosedError());
+        return;
+    }
+    const isSharded = topology.description.type === common_1.TopologyType.Sharded;
+    const serverDescriptions = Array.from(topology.description.servers.values());
+    const membersToProcess = topology[kWaitQueue].length;
+    for (let i = 0; i < membersToProcess; ++i) {
+        const waitQueueMember = topology[kWaitQueue].shift();
+        if (!waitQueueMember) {
+            continue;
+        }
+        if (waitQueueMember[kCancelled]) {
+            continue;
+        }
+        let selectedDescriptions;
+        try {
+            const serverSelector = waitQueueMember.serverSelector;
+            const previousServer = waitQueueMember.previousServer;
+            selectedDescriptions = serverSelector
+                ? serverSelector(topology.description, serverDescriptions, previousServer ? [previousServer] : [])
+                : serverDescriptions;
+        }
+        catch (selectorError) {
+            if (topology.client.mongoLogger?.willLog(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, mongo_logger_1.SeverityLevel.DEBUG)) {
+                topology.client.mongoLogger?.debug(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, new server_selection_events_1.ServerSelectionFailedEvent(waitQueueMember.serverSelector, topology.description, selectorError, waitQueueMember.operationName));
+            }
+            waitQueueMember.reject(selectorError);
+            continue;
+        }
+        let selectedServer;
+        if (selectedDescriptions.length === 0) {
+            if (!waitQueueMember.waitingLogged) {
+                if (topology.client.mongoLogger?.willLog(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, mongo_logger_1.SeverityLevel.INFORMATIONAL)) {
+                    topology.client.mongoLogger?.info(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, new server_selection_events_1.WaitingForSuitableServerEvent(waitQueueMember.serverSelector, topology.description, topology.s.serverSelectionTimeoutMS !== 0
+                        ? topology.s.serverSelectionTimeoutMS - ((0, utils_1.now)() - waitQueueMember.startTime)
+                        : -1, waitQueueMember.operationName));
+                }
+                waitQueueMember.waitingLogged = true;
+            }
+            topology[kWaitQueue].push(waitQueueMember);
+            continue;
+        }
+        else if (selectedDescriptions.length === 1) {
+            selectedServer = topology.s.servers.get(selectedDescriptions[0].address);
+        }
+        else {
+            const descriptions = (0, utils_1.shuffle)(selectedDescriptions, 2);
+            const server1 = topology.s.servers.get(descriptions[0].address);
+            const server2 = topology.s.servers.get(descriptions[1].address);
+            selectedServer =
+                server1 && server2 && server1.s.operationCount < server2.s.operationCount
+                    ? server1
+                    : server2;
+        }
+        if (!selectedServer) {
+            const serverSelectionError = new error_1.MongoServerSelectionError('server selection returned a server description but the server was not found in the topology', topology.description);
+            if (topology.client.mongoLogger?.willLog(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, mongo_logger_1.SeverityLevel.DEBUG)) {
+                topology.client.mongoLogger?.debug(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, new server_selection_events_1.ServerSelectionFailedEvent(waitQueueMember.serverSelector, topology.description, serverSelectionError, waitQueueMember.operationName));
+            }
+            waitQueueMember.reject(serverSelectionError);
+            return;
+        }
+        const transaction = waitQueueMember.transaction;
+        if (isSharded && transaction && transaction.isActive && selectedServer) {
+            transaction.pinServer(selectedServer);
+        }
+        if (topology.client.mongoLogger?.willLog(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, mongo_logger_1.SeverityLevel.DEBUG)) {
+            topology.client.mongoLogger?.debug(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, new server_selection_events_1.ServerSelectionSucceededEvent(waitQueueMember.serverSelector, waitQueueMember.topologyDescription, selectedServer.pool.address, waitQueueMember.operationName));
+        }
+        waitQueueMember.resolve(selectedServer);
+    }
+    if (topology[kWaitQueue].length > 0) {
+        // ensure all server monitors attempt monitoring soon
+        for (const [, server] of topology.s.servers) {
+            process.nextTick(function scheduleServerCheck() {
+                return server.requestCheck();
+            });
+        }
+    }
+}
+function isStaleServerDescription(topologyDescription, incomingServerDescription) {
+    const currentServerDescription = topologyDescription.servers.get(incomingServerDescription.address);
+    const currentTopologyVersion = currentServerDescription?.topologyVersion;
+    return ((0, server_description_1.compareTopologyVersion)(currentTopologyVersion, incomingServerDescription.topologyVersion) > 0);
+}
+/** @public */
+class ServerCapabilities {
+    constructor(hello) {
+        this.minWireVersion = hello.minWireVersion || 0;
+        this.maxWireVersion = hello.maxWireVersion || 0;
+    }
+    get hasAggregationCursor() {
+        return this.maxWireVersion >= 1;
+    }
+    get hasWriteCommands() {
+        return this.maxWireVersion >= 2;
+    }
+    get hasTextSearch() {
+        return this.minWireVersion >= 0;
+    }
+    get hasAuthCommands() {
+        return this.maxWireVersion >= 1;
+    }
+    get hasListCollectionsCommand() {
+        return this.maxWireVersion >= 3;
+    }
+    get hasListIndexesCommand() {
+        return this.maxWireVersion >= 3;
+    }
+    get supportsSnapshotReads() {
+        return this.maxWireVersion >= 13;
+    }
+    get commandsTakeWriteConcern() {
+        return this.maxWireVersion >= 5;
+    }
+    get commandsTakeCollation() {
+        return this.maxWireVersion >= 5;
+    }
+}
+exports.ServerCapabilities = ServerCapabilities;
+//# sourceMappingURL=topology.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/sdam/topology.js.map b/backend/node_modules/mongodb/lib/sdam/topology.js.map
new file mode 100644
index 0000000..8b8b6ea
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/sdam/topology.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/sdam/topology_description.js b/backend/node_modules/mongodb/lib/sdam/topology_description.js
new file mode 100644
index 0000000..2297f72
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/sdam/topology_description.js
@@ -0,0 +1,376 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.TopologyDescription = void 0;
+const bson_1 = require("../bson");
+const WIRE_CONSTANTS = require("../cmap/wire_protocol/constants");
+const error_1 = require("../error");
+const utils_1 = require("../utils");
+const common_1 = require("./common");
+const server_description_1 = require("./server_description");
+// constants related to compatibility checks
+const MIN_SUPPORTED_SERVER_VERSION = WIRE_CONSTANTS.MIN_SUPPORTED_SERVER_VERSION;
+const MAX_SUPPORTED_SERVER_VERSION = WIRE_CONSTANTS.MAX_SUPPORTED_SERVER_VERSION;
+const MIN_SUPPORTED_WIRE_VERSION = WIRE_CONSTANTS.MIN_SUPPORTED_WIRE_VERSION;
+const MAX_SUPPORTED_WIRE_VERSION = WIRE_CONSTANTS.MAX_SUPPORTED_WIRE_VERSION;
+const MONGOS_OR_UNKNOWN = new Set([common_1.ServerType.Mongos, common_1.ServerType.Unknown]);
+const MONGOS_OR_STANDALONE = new Set([common_1.ServerType.Mongos, common_1.ServerType.Standalone]);
+const NON_PRIMARY_RS_MEMBERS = new Set([
+    common_1.ServerType.RSSecondary,
+    common_1.ServerType.RSArbiter,
+    common_1.ServerType.RSOther
+]);
+/**
+ * Representation of a deployment of servers
+ * @public
+ */
+class TopologyDescription {
+    /**
+     * Create a TopologyDescription
+     */
+    constructor(topologyType, serverDescriptions = null, setName = null, maxSetVersion = null, maxElectionId = null, commonWireVersion = null, options = null) {
+        options = options ?? {};
+        this.type = topologyType ?? common_1.TopologyType.Unknown;
+        this.servers = serverDescriptions ?? new Map();
+        this.stale = false;
+        this.compatible = true;
+        this.heartbeatFrequencyMS = options.heartbeatFrequencyMS ?? 0;
+        this.localThresholdMS = options.localThresholdMS ?? 15;
+        this.setName = setName ?? null;
+        this.maxElectionId = maxElectionId ?? null;
+        this.maxSetVersion = maxSetVersion ?? null;
+        this.commonWireVersion = commonWireVersion ?? 0;
+        // determine server compatibility
+        for (const serverDescription of this.servers.values()) {
+            // Load balancer mode is always compatible.
+            if (serverDescription.type === common_1.ServerType.Unknown ||
+                serverDescription.type === common_1.ServerType.LoadBalancer) {
+                continue;
+            }
+            if (serverDescription.minWireVersion > MAX_SUPPORTED_WIRE_VERSION) {
+                this.compatible = false;
+                this.compatibilityError = `Server at ${serverDescription.address} requires wire version ${serverDescription.minWireVersion}, but this version of the driver only supports up to ${MAX_SUPPORTED_WIRE_VERSION} (MongoDB ${MAX_SUPPORTED_SERVER_VERSION})`;
+            }
+            if (serverDescription.maxWireVersion < MIN_SUPPORTED_WIRE_VERSION) {
+                this.compatible = false;
+                this.compatibilityError = `Server at ${serverDescription.address} reports wire version ${serverDescription.maxWireVersion}, but this version of the driver requires at least ${MIN_SUPPORTED_WIRE_VERSION} (MongoDB ${MIN_SUPPORTED_SERVER_VERSION}).`;
+                break;
+            }
+        }
+        // Whenever a client updates the TopologyDescription from a hello response, it MUST set
+        // TopologyDescription.logicalSessionTimeoutMinutes to the smallest logicalSessionTimeoutMinutes
+        // value among ServerDescriptions of all data-bearing server types. If any have a null
+        // logicalSessionTimeoutMinutes, then TopologyDescription.logicalSessionTimeoutMinutes MUST be
+        // set to null.
+        this.logicalSessionTimeoutMinutes = null;
+        for (const [, server] of this.servers) {
+            if (server.isReadable) {
+                if (server.logicalSessionTimeoutMinutes == null) {
+                    // If any of the servers have a null logicalSessionsTimeout, then the whole topology does
+                    this.logicalSessionTimeoutMinutes = null;
+                    break;
+                }
+                if (this.logicalSessionTimeoutMinutes == null) {
+                    // First server with a non null logicalSessionsTimeout
+                    this.logicalSessionTimeoutMinutes = server.logicalSessionTimeoutMinutes;
+                    continue;
+                }
+                // Always select the smaller of the:
+                // current server logicalSessionsTimeout and the topologies logicalSessionsTimeout
+                this.logicalSessionTimeoutMinutes = Math.min(this.logicalSessionTimeoutMinutes, server.logicalSessionTimeoutMinutes);
+            }
+        }
+    }
+    /**
+     * Returns a new TopologyDescription based on the SrvPollingEvent
+     * @internal
+     */
+    updateFromSrvPollingEvent(ev, srvMaxHosts = 0) {
+        /** The SRV addresses defines the set of addresses we should be using */
+        const incomingHostnames = ev.hostnames();
+        const currentHostnames = new Set(this.servers.keys());
+        const hostnamesToAdd = new Set(incomingHostnames);
+        const hostnamesToRemove = new Set();
+        for (const hostname of currentHostnames) {
+            // filter hostnamesToAdd (made from incomingHostnames) down to what is *not* present in currentHostnames
+            hostnamesToAdd.delete(hostname);
+            if (!incomingHostnames.has(hostname)) {
+                // If the SRV Records no longer include this hostname
+                // we have to stop using it
+                hostnamesToRemove.add(hostname);
+            }
+        }
+        if (hostnamesToAdd.size === 0 && hostnamesToRemove.size === 0) {
+            // No new hosts to add and none to remove
+            return this;
+        }
+        const serverDescriptions = new Map(this.servers);
+        for (const removedHost of hostnamesToRemove) {
+            serverDescriptions.delete(removedHost);
+        }
+        if (hostnamesToAdd.size > 0) {
+            if (srvMaxHosts === 0) {
+                // Add all!
+                for (const hostToAdd of hostnamesToAdd) {
+                    serverDescriptions.set(hostToAdd, new server_description_1.ServerDescription(hostToAdd));
+                }
+            }
+            else if (serverDescriptions.size < srvMaxHosts) {
+                // Add only the amount needed to get us back to srvMaxHosts
+                const selectedHosts = (0, utils_1.shuffle)(hostnamesToAdd, srvMaxHosts - serverDescriptions.size);
+                for (const selectedHostToAdd of selectedHosts) {
+                    serverDescriptions.set(selectedHostToAdd, new server_description_1.ServerDescription(selectedHostToAdd));
+                }
+            }
+        }
+        return new TopologyDescription(this.type, serverDescriptions, this.setName, this.maxSetVersion, this.maxElectionId, this.commonWireVersion, { heartbeatFrequencyMS: this.heartbeatFrequencyMS, localThresholdMS: this.localThresholdMS });
+    }
+    /**
+     * Returns a copy of this description updated with a given ServerDescription
+     * @internal
+     */
+    update(serverDescription) {
+        const address = serverDescription.address;
+        // potentially mutated values
+        let { type: topologyType, setName, maxSetVersion, maxElectionId, commonWireVersion } = this;
+        const serverType = serverDescription.type;
+        const serverDescriptions = new Map(this.servers);
+        // update common wire version
+        if (serverDescription.maxWireVersion !== 0) {
+            if (commonWireVersion == null) {
+                commonWireVersion = serverDescription.maxWireVersion;
+            }
+            else {
+                commonWireVersion = Math.min(commonWireVersion, serverDescription.maxWireVersion);
+            }
+        }
+        if (typeof serverDescription.setName === 'string' &&
+            typeof setName === 'string' &&
+            serverDescription.setName !== setName) {
+            if (topologyType === common_1.TopologyType.Single) {
+                // "Single" Topology with setName mismatch is direct connection usage, mark unknown do not remove
+                serverDescription = new server_description_1.ServerDescription(address);
+            }
+            else {
+                serverDescriptions.delete(address);
+            }
+        }
+        // update the actual server description
+        serverDescriptions.set(address, serverDescription);
+        if (topologyType === common_1.TopologyType.Single) {
+            // once we are defined as single, that never changes
+            return new TopologyDescription(common_1.TopologyType.Single, serverDescriptions, setName, maxSetVersion, maxElectionId, commonWireVersion, { heartbeatFrequencyMS: this.heartbeatFrequencyMS, localThresholdMS: this.localThresholdMS });
+        }
+        if (topologyType === common_1.TopologyType.Unknown) {
+            if (serverType === common_1.ServerType.Standalone && this.servers.size !== 1) {
+                serverDescriptions.delete(address);
+            }
+            else {
+                topologyType = topologyTypeForServerType(serverType);
+            }
+        }
+        if (topologyType === common_1.TopologyType.Sharded) {
+            if (!MONGOS_OR_UNKNOWN.has(serverType)) {
+                serverDescriptions.delete(address);
+            }
+        }
+        if (topologyType === common_1.TopologyType.ReplicaSetNoPrimary) {
+            if (MONGOS_OR_STANDALONE.has(serverType)) {
+                serverDescriptions.delete(address);
+            }
+            if (serverType === common_1.ServerType.RSPrimary) {
+                const result = updateRsFromPrimary(serverDescriptions, serverDescription, setName, maxSetVersion, maxElectionId);
+                topologyType = result[0];
+                setName = result[1];
+                maxSetVersion = result[2];
+                maxElectionId = result[3];
+            }
+            else if (NON_PRIMARY_RS_MEMBERS.has(serverType)) {
+                const result = updateRsNoPrimaryFromMember(serverDescriptions, serverDescription, setName);
+                topologyType = result[0];
+                setName = result[1];
+            }
+        }
+        if (topologyType === common_1.TopologyType.ReplicaSetWithPrimary) {
+            if (MONGOS_OR_STANDALONE.has(serverType)) {
+                serverDescriptions.delete(address);
+                topologyType = checkHasPrimary(serverDescriptions);
+            }
+            else if (serverType === common_1.ServerType.RSPrimary) {
+                const result = updateRsFromPrimary(serverDescriptions, serverDescription, setName, maxSetVersion, maxElectionId);
+                topologyType = result[0];
+                setName = result[1];
+                maxSetVersion = result[2];
+                maxElectionId = result[3];
+            }
+            else if (NON_PRIMARY_RS_MEMBERS.has(serverType)) {
+                topologyType = updateRsWithPrimaryFromMember(serverDescriptions, serverDescription, setName);
+            }
+            else {
+                topologyType = checkHasPrimary(serverDescriptions);
+            }
+        }
+        return new TopologyDescription(topologyType, serverDescriptions, setName, maxSetVersion, maxElectionId, commonWireVersion, { heartbeatFrequencyMS: this.heartbeatFrequencyMS, localThresholdMS: this.localThresholdMS });
+    }
+    get error() {
+        const descriptionsWithError = Array.from(this.servers.values()).filter((sd) => sd.error);
+        if (descriptionsWithError.length > 0) {
+            return descriptionsWithError[0].error;
+        }
+        return null;
+    }
+    /**
+     * Determines if the topology description has any known servers
+     */
+    get hasKnownServers() {
+        return Array.from(this.servers.values()).some((sd) => sd.type !== common_1.ServerType.Unknown);
+    }
+    /**
+     * Determines if this topology description has a data-bearing server available.
+     */
+    get hasDataBearingServers() {
+        return Array.from(this.servers.values()).some((sd) => sd.isDataBearing);
+    }
+    /**
+     * Determines if the topology has a definition for the provided address
+     * @internal
+     */
+    hasServer(address) {
+        return this.servers.has(address);
+    }
+    /**
+     * Returns a JSON-serializable representation of the TopologyDescription.  This is primarily
+     * intended for use with JSON.stringify().
+     *
+     * This method will not throw.
+     */
+    toJSON() {
+        return bson_1.EJSON.serialize(this);
+    }
+}
+exports.TopologyDescription = TopologyDescription;
+function topologyTypeForServerType(serverType) {
+    switch (serverType) {
+        case common_1.ServerType.Standalone:
+            return common_1.TopologyType.Single;
+        case common_1.ServerType.Mongos:
+            return common_1.TopologyType.Sharded;
+        case common_1.ServerType.RSPrimary:
+            return common_1.TopologyType.ReplicaSetWithPrimary;
+        case common_1.ServerType.RSOther:
+        case common_1.ServerType.RSSecondary:
+            return common_1.TopologyType.ReplicaSetNoPrimary;
+        default:
+            return common_1.TopologyType.Unknown;
+    }
+}
+function updateRsFromPrimary(serverDescriptions, serverDescription, setName = null, maxSetVersion = null, maxElectionId = null) {
+    setName = setName || serverDescription.setName;
+    if (setName !== serverDescription.setName) {
+        serverDescriptions.delete(serverDescription.address);
+        return [checkHasPrimary(serverDescriptions), setName, maxSetVersion, maxElectionId];
+    }
+    if (serverDescription.maxWireVersion >= 17) {
+        const electionIdComparison = (0, utils_1.compareObjectId)(maxElectionId, serverDescription.electionId);
+        const maxElectionIdIsEqual = electionIdComparison === 0;
+        const maxElectionIdIsLess = electionIdComparison === -1;
+        const maxSetVersionIsLessOrEqual = (maxSetVersion ?? -1) <= (serverDescription.setVersion ?? -1);
+        if (maxElectionIdIsLess || (maxElectionIdIsEqual && maxSetVersionIsLessOrEqual)) {
+            // The reported electionId was greater
+            // or the electionId was equal and reported setVersion was greater
+            // Always update both values, they are a tuple
+            maxElectionId = serverDescription.electionId;
+            maxSetVersion = serverDescription.setVersion;
+        }
+        else {
+            // Stale primary
+            // replace serverDescription with a default ServerDescription of type "Unknown"
+            serverDescriptions.set(serverDescription.address, new server_description_1.ServerDescription(serverDescription.address, undefined, {
+                error: new error_1.MongoStalePrimaryError(serverDescription, maxSetVersion, maxElectionId)
+            }));
+            return [checkHasPrimary(serverDescriptions), setName, maxSetVersion, maxElectionId];
+        }
+    }
+    else {
+        const electionId = serverDescription.electionId ? serverDescription.electionId : null;
+        if (serverDescription.setVersion && electionId) {
+            if (maxSetVersion && maxElectionId) {
+                if (maxSetVersion > serverDescription.setVersion ||
+                    (0, utils_1.compareObjectId)(maxElectionId, electionId) > 0) {
+                    // this primary is stale, we must remove it
+                    serverDescriptions.set(serverDescription.address, new server_description_1.ServerDescription(serverDescription.address, undefined, {
+                        error: new error_1.MongoStalePrimaryError(serverDescription, maxSetVersion, maxElectionId)
+                    }));
+                    return [checkHasPrimary(serverDescriptions), setName, maxSetVersion, maxElectionId];
+                }
+            }
+            maxElectionId = serverDescription.electionId;
+        }
+        if (serverDescription.setVersion != null &&
+            (maxSetVersion == null || serverDescription.setVersion > maxSetVersion)) {
+            maxSetVersion = serverDescription.setVersion;
+        }
+    }
+    // We've heard from the primary. Is it the same primary as before?
+    for (const [address, server] of serverDescriptions) {
+        if (server.type === common_1.ServerType.RSPrimary && server.address !== serverDescription.address) {
+            // Reset old primary's type to Unknown.
+            serverDescriptions.set(address, new server_description_1.ServerDescription(server.address, undefined, {
+                error: new error_1.MongoStalePrimaryError(serverDescription, maxSetVersion, maxElectionId)
+            }));
+            // There can only be one primary
+            break;
+        }
+    }
+    // Discover new hosts from this primary's response.
+    serverDescription.allHosts.forEach((address) => {
+        if (!serverDescriptions.has(address)) {
+            serverDescriptions.set(address, new server_description_1.ServerDescription(address));
+        }
+    });
+    // Remove hosts not in the response.
+    const currentAddresses = Array.from(serverDescriptions.keys());
+    const responseAddresses = serverDescription.allHosts;
+    currentAddresses
+        .filter((addr) => responseAddresses.indexOf(addr) === -1)
+        .forEach((address) => {
+        serverDescriptions.delete(address);
+    });
+    return [checkHasPrimary(serverDescriptions), setName, maxSetVersion, maxElectionId];
+}
+function updateRsWithPrimaryFromMember(serverDescriptions, serverDescription, setName = null) {
+    if (setName == null) {
+        // TODO(NODE-3483): should be an appropriate runtime error
+        throw new error_1.MongoRuntimeError('Argument "setName" is required if connected to a replica set');
+    }
+    if (setName !== serverDescription.setName ||
+        (serverDescription.me && serverDescription.address !== serverDescription.me)) {
+        serverDescriptions.delete(serverDescription.address);
+    }
+    return checkHasPrimary(serverDescriptions);
+}
+function updateRsNoPrimaryFromMember(serverDescriptions, serverDescription, setName = null) {
+    const topologyType = common_1.TopologyType.ReplicaSetNoPrimary;
+    setName = setName ?? serverDescription.setName;
+    if (setName !== serverDescription.setName) {
+        serverDescriptions.delete(serverDescription.address);
+        return [topologyType, setName];
+    }
+    serverDescription.allHosts.forEach((address) => {
+        if (!serverDescriptions.has(address)) {
+            serverDescriptions.set(address, new server_description_1.ServerDescription(address));
+        }
+    });
+    if (serverDescription.me && serverDescription.address !== serverDescription.me) {
+        serverDescriptions.delete(serverDescription.address);
+    }
+    return [topologyType, setName];
+}
+function checkHasPrimary(serverDescriptions) {
+    for (const serverDescription of serverDescriptions.values()) {
+        if (serverDescription.type === common_1.ServerType.RSPrimary) {
+            return common_1.TopologyType.ReplicaSetWithPrimary;
+        }
+    }
+    return common_1.TopologyType.ReplicaSetNoPrimary;
+}
+//# sourceMappingURL=topology_description.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/sdam/topology_description.js.map b/backend/node_modules/mongodb/lib/sdam/topology_description.js.map
new file mode 100644
index 0000000..0b92857
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/sdam/topology_description.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/sessions.js b/backend/node_modules/mongodb/lib/sessions.js
new file mode 100644
index 0000000..3473421
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/sessions.js
@@ -0,0 +1,858 @@
+"use strict";
+var _a;
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ServerSessionPool = exports.ServerSession = exports.ClientSession = void 0;
+exports.maybeClearPinnedConnection = maybeClearPinnedConnection;
+exports.applySession = applySession;
+exports.updateSessionFromResponse = updateSessionFromResponse;
+const bson_1 = require("./bson");
+const metrics_1 = require("./cmap/metrics");
+const shared_1 = require("./cmap/wire_protocol/shared");
+const constants_1 = require("./constants");
+const error_1 = require("./error");
+const mongo_types_1 = require("./mongo_types");
+const execute_operation_1 = require("./operations/execute_operation");
+const run_command_1 = require("./operations/run_command");
+const read_concern_1 = require("./read_concern");
+const read_preference_1 = require("./read_preference");
+const resource_management_1 = require("./resource_management");
+const common_1 = require("./sdam/common");
+const timeout_1 = require("./timeout");
+const transactions_1 = require("./transactions");
+const utils_1 = require("./utils");
+const write_concern_1 = require("./write_concern");
+const minWireVersionForShardedTransactions = 8;
+/** @internal */
+const kServerSession = Symbol('serverSession');
+/** @internal */
+const kSnapshotTime = Symbol('snapshotTime');
+/** @internal */
+const kSnapshotEnabled = Symbol('snapshotEnabled');
+/** @internal */
+const kPinnedConnection = Symbol('pinnedConnection');
+/** @internal Accumulates total number of increments to add to txnNumber when applying session to command */
+const kTxnNumberIncrement = Symbol('txnNumberIncrement');
+/**
+ * A class representing a client session on the server
+ *
+ * NOTE: not meant to be instantiated directly.
+ * @public
+ */
+class ClientSession extends mongo_types_1.TypedEventEmitter {
+    /**
+     * Create a client session.
+     * @internal
+     * @param client - The current client
+     * @param sessionPool - The server session pool (Internal Class)
+     * @param options - Optional settings
+     * @param clientOptions - Optional settings provided when creating a MongoClient
+     */
+    constructor(client, sessionPool, options, clientOptions) {
+        super();
+        /** @internal */
+        this[_a] = false;
+        /** @internal */
+        this.timeoutContext = null;
+        if (client == null) {
+            // TODO(NODE-3483)
+            throw new error_1.MongoRuntimeError('ClientSession requires a MongoClient');
+        }
+        if (sessionPool == null || !(sessionPool instanceof ServerSessionPool)) {
+            // TODO(NODE-3483)
+            throw new error_1.MongoRuntimeError('ClientSession requires a ServerSessionPool');
+        }
+        options = options ?? {};
+        if (options.snapshot === true) {
+            this[kSnapshotEnabled] = true;
+            if (options.causalConsistency === true) {
+                throw new error_1.MongoInvalidArgumentError('Properties "causalConsistency" and "snapshot" are mutually exclusive');
+            }
+        }
+        this.client = client;
+        this.sessionPool = sessionPool;
+        this.hasEnded = false;
+        this.clientOptions = clientOptions;
+        this.timeoutMS = options.defaultTimeoutMS ?? client.s.options?.timeoutMS;
+        this.explicit = !!options.explicit;
+        this[kServerSession] = this.explicit ? this.sessionPool.acquire() : null;
+        this[kTxnNumberIncrement] = 0;
+        const defaultCausalConsistencyValue = this.explicit && options.snapshot !== true;
+        this.supports = {
+            // if we can enable causal consistency, do so by default
+            causalConsistency: options.causalConsistency ?? defaultCausalConsistencyValue
+        };
+        this.clusterTime = options.initialClusterTime;
+        this.operationTime = undefined;
+        this.owner = options.owner;
+        this.defaultTransactionOptions = { ...options.defaultTransactionOptions };
+        this.transaction = new transactions_1.Transaction();
+    }
+    /** The server id associated with this session */
+    get id() {
+        return this[kServerSession]?.id;
+    }
+    get serverSession() {
+        let serverSession = this[kServerSession];
+        if (serverSession == null) {
+            if (this.explicit) {
+                throw new error_1.MongoRuntimeError('Unexpected null serverSession for an explicit session');
+            }
+            if (this.hasEnded) {
+                throw new error_1.MongoRuntimeError('Unexpected null serverSession for an ended implicit session');
+            }
+            serverSession = this.sessionPool.acquire();
+            this[kServerSession] = serverSession;
+        }
+        return serverSession;
+    }
+    /** Whether or not this session is configured for snapshot reads */
+    get snapshotEnabled() {
+        return this[kSnapshotEnabled];
+    }
+    get loadBalanced() {
+        return this.client.topology?.description.type === common_1.TopologyType.LoadBalanced;
+    }
+    /** @internal */
+    get pinnedConnection() {
+        return this[kPinnedConnection];
+    }
+    /** @internal */
+    pin(conn) {
+        if (this[kPinnedConnection]) {
+            throw TypeError('Cannot pin multiple connections to the same session');
+        }
+        this[kPinnedConnection] = conn;
+        conn.emit(constants_1.PINNED, this.inTransaction() ? metrics_1.ConnectionPoolMetrics.TXN : metrics_1.ConnectionPoolMetrics.CURSOR);
+    }
+    /** @internal */
+    unpin(options) {
+        if (this.loadBalanced) {
+            return maybeClearPinnedConnection(this, options);
+        }
+        this.transaction.unpinServer();
+    }
+    get isPinned() {
+        return this.loadBalanced ? !!this[kPinnedConnection] : this.transaction.isPinned;
+    }
+    /**
+     * Frees any client-side resources held by the current session.  If a session is in a transaction,
+     * the transaction is aborted.
+     *
+     * Does not end the session on the server.
+     *
+     * @param options - Optional settings. Currently reserved for future use
+     */
+    async endSession(options) {
+        try {
+            if (this.inTransaction()) {
+                await this.abortTransaction({ ...options, throwTimeout: true });
+            }
+        }
+        catch (error) {
+            // spec indicates that we should ignore all errors for `endSessions`
+            if (error.name === 'MongoOperationTimeoutError')
+                throw error;
+            (0, utils_1.squashError)(error);
+        }
+        finally {
+            if (!this.hasEnded) {
+                const serverSession = this[kServerSession];
+                if (serverSession != null) {
+                    // release the server session back to the pool
+                    this.sessionPool.release(serverSession);
+                    // Store a clone of the server session for reference (debugging)
+                    this[kServerSession] = new ServerSession(serverSession);
+                }
+                // mark the session as ended, and emit a signal
+                this.hasEnded = true;
+                this.emit('ended', this);
+            }
+            maybeClearPinnedConnection(this, { force: true, ...options });
+        }
+    }
+    /** @internal */
+    async asyncDispose() {
+        await this.endSession({ force: true });
+    }
+    /**
+     * Advances the operationTime for a ClientSession.
+     *
+     * @param operationTime - the `BSON.Timestamp` of the operation type it is desired to advance to
+     */
+    advanceOperationTime(operationTime) {
+        if (this.operationTime == null) {
+            this.operationTime = operationTime;
+            return;
+        }
+        if (operationTime.greaterThan(this.operationTime)) {
+            this.operationTime = operationTime;
+        }
+    }
+    /**
+     * Advances the clusterTime for a ClientSession to the provided clusterTime of another ClientSession
+     *
+     * @param clusterTime - the $clusterTime returned by the server from another session in the form of a document containing the `BSON.Timestamp` clusterTime and signature
+     */
+    advanceClusterTime(clusterTime) {
+        if (!clusterTime || typeof clusterTime !== 'object') {
+            throw new error_1.MongoInvalidArgumentError('input cluster time must be an object');
+        }
+        if (!clusterTime.clusterTime || clusterTime.clusterTime._bsontype !== 'Timestamp') {
+            throw new error_1.MongoInvalidArgumentError('input cluster time "clusterTime" property must be a valid BSON Timestamp');
+        }
+        if (!clusterTime.signature ||
+            clusterTime.signature.hash?._bsontype !== 'Binary' ||
+            (typeof clusterTime.signature.keyId !== 'bigint' &&
+                typeof clusterTime.signature.keyId !== 'number' &&
+                clusterTime.signature.keyId?._bsontype !== 'Long') // apparently we decode the key to number?
+        ) {
+            throw new error_1.MongoInvalidArgumentError('input cluster time must have a valid "signature" property with BSON Binary hash and BSON Long keyId');
+        }
+        (0, common_1._advanceClusterTime)(this, clusterTime);
+    }
+    /**
+     * Used to determine if this session equals another
+     *
+     * @param session - The session to compare to
+     */
+    equals(session) {
+        if (!(session instanceof ClientSession)) {
+            return false;
+        }
+        if (this.id == null || session.id == null) {
+            return false;
+        }
+        return utils_1.ByteUtils.equals(this.id.id.buffer, session.id.id.buffer);
+    }
+    /**
+     * Increment the transaction number on the internal ServerSession
+     *
+     * @privateRemarks
+     * This helper increments a value stored on the client session that will be
+     * added to the serverSession's txnNumber upon applying it to a command.
+     * This is because the serverSession is lazily acquired after a connection is obtained
+     */
+    incrementTransactionNumber() {
+        this[kTxnNumberIncrement] += 1;
+    }
+    /** @returns whether this session is currently in a transaction or not */
+    inTransaction() {
+        return this.transaction.isActive;
+    }
+    /**
+     * Starts a new transaction with the given options.
+     *
+     * @remarks
+     * **IMPORTANT**: Running operations in parallel is not supported during a transaction. The use of `Promise.all`,
+     * `Promise.allSettled`, `Promise.race`, etc to parallelize operations inside a transaction is
+     * undefined behaviour.
+     *
+     * @param options - Options for the transaction
+     */
+    startTransaction(options) {
+        if (this[kSnapshotEnabled]) {
+            throw new error_1.MongoCompatibilityError('Transactions are not supported in snapshot sessions');
+        }
+        if (this.inTransaction()) {
+            throw new error_1.MongoTransactionError('Transaction already in progress');
+        }
+        if (this.isPinned && this.transaction.isCommitted) {
+            this.unpin();
+        }
+        const topologyMaxWireVersion = (0, utils_1.maxWireVersion)(this.client.topology);
+        if ((0, shared_1.isSharded)(this.client.topology) &&
+            topologyMaxWireVersion != null &&
+            topologyMaxWireVersion < minWireVersionForShardedTransactions) {
+            throw new error_1.MongoCompatibilityError('Transactions are not supported on sharded clusters in MongoDB < 4.2.');
+        }
+        this.commitAttempted = false;
+        // increment txnNumber
+        this.incrementTransactionNumber();
+        // create transaction state
+        this.transaction = new transactions_1.Transaction({
+            readConcern: options?.readConcern ??
+                this.defaultTransactionOptions.readConcern ??
+                this.clientOptions?.readConcern,
+            writeConcern: options?.writeConcern ??
+                this.defaultTransactionOptions.writeConcern ??
+                this.clientOptions?.writeConcern,
+            readPreference: options?.readPreference ??
+                this.defaultTransactionOptions.readPreference ??
+                this.clientOptions?.readPreference,
+            maxCommitTimeMS: options?.maxCommitTimeMS ?? this.defaultTransactionOptions.maxCommitTimeMS
+        });
+        this.transaction.transition(transactions_1.TxnState.STARTING_TRANSACTION);
+    }
+    /**
+     * Commits the currently active transaction in this session.
+     *
+     * @param options - Optional options, can be used to override `defaultTimeoutMS`.
+     */
+    async commitTransaction(options) {
+        if (this.transaction.state === transactions_1.TxnState.NO_TRANSACTION) {
+            throw new error_1.MongoTransactionError('No transaction started');
+        }
+        if (this.transaction.state === transactions_1.TxnState.STARTING_TRANSACTION ||
+            this.transaction.state === transactions_1.TxnState.TRANSACTION_COMMITTED_EMPTY) {
+            // the transaction was never started, we can safely exit here
+            this.transaction.transition(transactions_1.TxnState.TRANSACTION_COMMITTED_EMPTY);
+            return;
+        }
+        if (this.transaction.state === transactions_1.TxnState.TRANSACTION_ABORTED) {
+            throw new error_1.MongoTransactionError('Cannot call commitTransaction after calling abortTransaction');
+        }
+        const command = { commitTransaction: 1 };
+        const timeoutMS = typeof options?.timeoutMS === 'number'
+            ? options.timeoutMS
+            : typeof this.timeoutMS === 'number'
+                ? this.timeoutMS
+                : null;
+        const wc = this.transaction.options.writeConcern ?? this.clientOptions?.writeConcern;
+        if (wc != null) {
+            if (timeoutMS == null && this.timeoutContext == null) {
+                write_concern_1.WriteConcern.apply(command, { wtimeoutMS: 10000, w: 'majority', ...wc });
+            }
+            else {
+                const wcKeys = Object.keys(wc);
+                if (wcKeys.length > 2 || (!wcKeys.includes('wtimeoutMS') && !wcKeys.includes('wTimeoutMS')))
+                    // if the write concern was specified with wTimeoutMS, then we set both wtimeoutMS and wTimeoutMS, guaranteeing at least two keys, so if we have more than two keys, then we can automatically assume that we should add the write concern to the command. If it has 2 or fewer keys, we need to check that those keys aren't the wtimeoutMS or wTimeoutMS options before we add the write concern to the command
+                    write_concern_1.WriteConcern.apply(command, { ...wc, wtimeoutMS: undefined });
+            }
+        }
+        if (this.transaction.state === transactions_1.TxnState.TRANSACTION_COMMITTED || this.commitAttempted) {
+            if (timeoutMS == null && this.timeoutContext == null) {
+                write_concern_1.WriteConcern.apply(command, { wtimeoutMS: 10000, ...wc, w: 'majority' });
+            }
+            else {
+                write_concern_1.WriteConcern.apply(command, { w: 'majority', ...wc, wtimeoutMS: undefined });
+            }
+        }
+        if (typeof this.transaction.options.maxTimeMS === 'number') {
+            command.maxTimeMS = this.transaction.options.maxTimeMS;
+        }
+        if (this.transaction.recoveryToken) {
+            command.recoveryToken = this.transaction.recoveryToken;
+        }
+        const operation = new run_command_1.RunAdminCommandOperation(command, {
+            session: this,
+            readPreference: read_preference_1.ReadPreference.primary,
+            bypassPinningCheck: true
+        });
+        const timeoutContext = this.timeoutContext ??
+            (typeof timeoutMS === 'number'
+                ? timeout_1.TimeoutContext.create({
+                    serverSelectionTimeoutMS: this.clientOptions.serverSelectionTimeoutMS,
+                    socketTimeoutMS: this.clientOptions.socketTimeoutMS,
+                    timeoutMS
+                })
+                : null);
+        try {
+            await (0, execute_operation_1.executeOperation)(this.client, operation, timeoutContext);
+            this.commitAttempted = undefined;
+            return;
+        }
+        catch (firstCommitError) {
+            this.commitAttempted = true;
+            if (firstCommitError instanceof error_1.MongoError && (0, error_1.isRetryableWriteError)(firstCommitError)) {
+                // SPEC-1185: apply majority write concern when retrying commitTransaction
+                write_concern_1.WriteConcern.apply(command, { wtimeoutMS: 10000, ...wc, w: 'majority' });
+                // per txns spec, must unpin session in this case
+                this.unpin({ force: true });
+                try {
+                    await (0, execute_operation_1.executeOperation)(this.client, new run_command_1.RunAdminCommandOperation(command, {
+                        session: this,
+                        readPreference: read_preference_1.ReadPreference.primary,
+                        bypassPinningCheck: true
+                    }), timeoutContext);
+                    return;
+                }
+                catch (retryCommitError) {
+                    // If the retry failed, we process that error instead of the original
+                    if (shouldAddUnknownTransactionCommitResultLabel(retryCommitError)) {
+                        retryCommitError.addErrorLabel(error_1.MongoErrorLabel.UnknownTransactionCommitResult);
+                    }
+                    if (shouldUnpinAfterCommitError(retryCommitError)) {
+                        this.unpin({ error: retryCommitError });
+                    }
+                    throw retryCommitError;
+                }
+            }
+            if (shouldAddUnknownTransactionCommitResultLabel(firstCommitError)) {
+                firstCommitError.addErrorLabel(error_1.MongoErrorLabel.UnknownTransactionCommitResult);
+            }
+            if (shouldUnpinAfterCommitError(firstCommitError)) {
+                this.unpin({ error: firstCommitError });
+            }
+            throw firstCommitError;
+        }
+        finally {
+            this.transaction.transition(transactions_1.TxnState.TRANSACTION_COMMITTED);
+        }
+    }
+    async abortTransaction(options) {
+        if (this.transaction.state === transactions_1.TxnState.NO_TRANSACTION) {
+            throw new error_1.MongoTransactionError('No transaction started');
+        }
+        if (this.transaction.state === transactions_1.TxnState.STARTING_TRANSACTION) {
+            // the transaction was never started, we can safely exit here
+            this.transaction.transition(transactions_1.TxnState.TRANSACTION_ABORTED);
+            return;
+        }
+        if (this.transaction.state === transactions_1.TxnState.TRANSACTION_ABORTED) {
+            throw new error_1.MongoTransactionError('Cannot call abortTransaction twice');
+        }
+        if (this.transaction.state === transactions_1.TxnState.TRANSACTION_COMMITTED ||
+            this.transaction.state === transactions_1.TxnState.TRANSACTION_COMMITTED_EMPTY) {
+            throw new error_1.MongoTransactionError('Cannot call abortTransaction after calling commitTransaction');
+        }
+        const command = { abortTransaction: 1 };
+        const timeoutMS = typeof options?.timeoutMS === 'number'
+            ? options.timeoutMS
+            : this.timeoutContext?.csotEnabled()
+                ? this.timeoutContext.timeoutMS // refresh timeoutMS for abort operation
+                : typeof this.timeoutMS === 'number'
+                    ? this.timeoutMS
+                    : null;
+        const timeoutContext = timeoutMS != null
+            ? timeout_1.TimeoutContext.create({
+                timeoutMS,
+                serverSelectionTimeoutMS: this.clientOptions.serverSelectionTimeoutMS,
+                socketTimeoutMS: this.clientOptions.socketTimeoutMS
+            })
+            : null;
+        const wc = this.transaction.options.writeConcern ?? this.clientOptions?.writeConcern;
+        if (wc != null && timeoutMS == null) {
+            write_concern_1.WriteConcern.apply(command, { wtimeoutMS: 10000, w: 'majority', ...wc });
+        }
+        if (this.transaction.recoveryToken) {
+            command.recoveryToken = this.transaction.recoveryToken;
+        }
+        const operation = new run_command_1.RunAdminCommandOperation(command, {
+            session: this,
+            readPreference: read_preference_1.ReadPreference.primary,
+            bypassPinningCheck: true
+        });
+        try {
+            await (0, execute_operation_1.executeOperation)(this.client, operation, timeoutContext);
+            this.unpin();
+            return;
+        }
+        catch (firstAbortError) {
+            this.unpin();
+            if (firstAbortError.name === 'MongoRuntimeError')
+                throw firstAbortError;
+            if (options?.throwTimeout && firstAbortError.name === 'MongoOperationTimeoutError') {
+                throw firstAbortError;
+            }
+            if (firstAbortError instanceof error_1.MongoError && (0, error_1.isRetryableWriteError)(firstAbortError)) {
+                try {
+                    await (0, execute_operation_1.executeOperation)(this.client, operation, timeoutContext);
+                    return;
+                }
+                catch (secondAbortError) {
+                    if (secondAbortError.name === 'MongoRuntimeError')
+                        throw secondAbortError;
+                    if (options?.throwTimeout && secondAbortError.name === 'MongoOperationTimeoutError') {
+                        throw secondAbortError;
+                    }
+                    // we do not retry the retry
+                }
+            }
+            // The spec indicates that if the operation times out or fails with a non-retryable error, we should ignore all errors on `abortTransaction`
+        }
+        finally {
+            this.transaction.transition(transactions_1.TxnState.TRANSACTION_ABORTED);
+            if (this.loadBalanced) {
+                maybeClearPinnedConnection(this, { force: false });
+            }
+        }
+    }
+    /**
+     * This is here to ensure that ClientSession is never serialized to BSON.
+     */
+    toBSON() {
+        throw new error_1.MongoRuntimeError('ClientSession cannot be serialized to BSON.');
+    }
+    /**
+     * Starts a transaction and runs a provided function, ensuring the commitTransaction is always attempted when all operations run in the function have completed.
+     *
+     * **IMPORTANT:** This method requires the function passed in to return a Promise. That promise must be made by `await`-ing all operations in such a way that rejections are propagated to the returned promise.
+     *
+     * **IMPORTANT:** Running operations in parallel is not supported during a transaction. The use of `Promise.all`,
+     * `Promise.allSettled`, `Promise.race`, etc to parallelize operations inside a transaction is
+     * undefined behaviour.
+     *
+     * **IMPORTANT:** When running an operation inside a `withTransaction` callback, if it is not
+     * provided the explicit session in its options, it will not be part of the transaction and it will not respect timeoutMS.
+     *
+     *
+     * @remarks
+     * - If all operations successfully complete and the `commitTransaction` operation is successful, then the provided function will return the result of the provided function.
+     * - If the transaction is unable to complete or an error is thrown from within the provided function, then the provided function will throw an error.
+     *   - If the transaction is manually aborted within the provided function it will not throw.
+     * - If the driver needs to attempt to retry the operations, the provided function may be called multiple times.
+     *
+     * Checkout a descriptive example here:
+     * @see https://www.mongodb.com/blog/post/quick-start-nodejs--mongodb--how-to-implement-transactions
+     *
+     * If a command inside withTransaction fails:
+     * - It may cause the transaction on the server to be aborted.
+     * - This situation is normally handled transparently by the driver.
+     * - However, if the application catches such an error and does not rethrow it, the driver will not be able to determine whether the transaction was aborted or not.
+     * - The driver will then retry the transaction indefinitely.
+     *
+     * To avoid this situation, the application must not silently handle errors within the provided function.
+     * If the application needs to handle errors within, it must await all operations such that if an operation is rejected it becomes the rejection of the callback function passed into withTransaction.
+     *
+     * @param fn - callback to run within a transaction
+     * @param options - optional settings for the transaction
+     * @returns A raw command response or undefined
+     */
+    async withTransaction(fn, options) {
+        const MAX_TIMEOUT = 120000;
+        const timeoutMS = options?.timeoutMS ?? this.timeoutMS ?? null;
+        this.timeoutContext =
+            timeoutMS != null
+                ? timeout_1.TimeoutContext.create({
+                    timeoutMS,
+                    serverSelectionTimeoutMS: this.clientOptions.serverSelectionTimeoutMS,
+                    socketTimeoutMS: this.clientOptions.socketTimeoutMS
+                })
+                : null;
+        const startTime = this.timeoutContext?.csotEnabled() ? this.timeoutContext.start : (0, utils_1.now)();
+        let committed = false;
+        let result;
+        try {
+            while (!committed) {
+                this.startTransaction(options); // may throw on error
+                try {
+                    const promise = fn(this);
+                    if (!(0, utils_1.isPromiseLike)(promise)) {
+                        throw new error_1.MongoInvalidArgumentError('Function provided to `withTransaction` must return a Promise');
+                    }
+                    result = await promise;
+                    if (this.transaction.state === transactions_1.TxnState.NO_TRANSACTION ||
+                        this.transaction.state === transactions_1.TxnState.TRANSACTION_COMMITTED ||
+                        this.transaction.state === transactions_1.TxnState.TRANSACTION_ABORTED) {
+                        // Assume callback intentionally ended the transaction
+                        return result;
+                    }
+                }
+                catch (fnError) {
+                    if (!(fnError instanceof error_1.MongoError) || fnError instanceof error_1.MongoInvalidArgumentError) {
+                        await this.abortTransaction();
+                        throw fnError;
+                    }
+                    if (this.transaction.state === transactions_1.TxnState.STARTING_TRANSACTION ||
+                        this.transaction.state === transactions_1.TxnState.TRANSACTION_IN_PROGRESS) {
+                        await this.abortTransaction();
+                    }
+                    if (fnError.hasErrorLabel(error_1.MongoErrorLabel.TransientTransactionError) &&
+                        (this.timeoutContext != null || (0, utils_1.now)() - startTime < MAX_TIMEOUT)) {
+                        continue;
+                    }
+                    throw fnError;
+                }
+                while (!committed) {
+                    try {
+                        /*
+                         * We will rely on ClientSession.commitTransaction() to
+                         * apply a majority write concern if commitTransaction is
+                         * being retried (see: DRIVERS-601)
+                         */
+                        await this.commitTransaction();
+                        committed = true;
+                    }
+                    catch (commitError) {
+                        /*
+                         * Note: a maxTimeMS error will have the MaxTimeMSExpired
+                         * code (50) and can be reported as a top-level error or
+                         * inside writeConcernError, ex.
+                         * { ok:0, code: 50, codeName: 'MaxTimeMSExpired' }
+                         * { ok:1, writeConcernError: { code: 50, codeName: 'MaxTimeMSExpired' } }
+                         */
+                        if (!isMaxTimeMSExpiredError(commitError) &&
+                            commitError.hasErrorLabel(error_1.MongoErrorLabel.UnknownTransactionCommitResult) &&
+                            (this.timeoutContext != null || (0, utils_1.now)() - startTime < MAX_TIMEOUT)) {
+                            continue;
+                        }
+                        if (commitError.hasErrorLabel(error_1.MongoErrorLabel.TransientTransactionError) &&
+                            (this.timeoutContext != null || (0, utils_1.now)() - startTime < MAX_TIMEOUT)) {
+                            break;
+                        }
+                        throw commitError;
+                    }
+                }
+            }
+            return result;
+        }
+        finally {
+            this.timeoutContext = null;
+        }
+    }
+}
+exports.ClientSession = ClientSession;
+_a = kSnapshotEnabled;
+(0, resource_management_1.configureResourceManagement)(ClientSession.prototype);
+const NON_DETERMINISTIC_WRITE_CONCERN_ERRORS = new Set([
+    'CannotSatisfyWriteConcern',
+    'UnknownReplWriteConcern',
+    'UnsatisfiableWriteConcern'
+]);
+function shouldUnpinAfterCommitError(commitError) {
+    if (commitError instanceof error_1.MongoError) {
+        if ((0, error_1.isRetryableWriteError)(commitError) ||
+            commitError instanceof error_1.MongoWriteConcernError ||
+            isMaxTimeMSExpiredError(commitError)) {
+            if (isUnknownTransactionCommitResult(commitError)) {
+                // per txns spec, must unpin session in this case
+                return true;
+            }
+        }
+        else if (commitError.hasErrorLabel(error_1.MongoErrorLabel.TransientTransactionError)) {
+            return true;
+        }
+    }
+    return false;
+}
+function shouldAddUnknownTransactionCommitResultLabel(commitError) {
+    let ok = (0, error_1.isRetryableWriteError)(commitError);
+    ok ||= commitError instanceof error_1.MongoWriteConcernError;
+    ok ||= isMaxTimeMSExpiredError(commitError);
+    ok &&= isUnknownTransactionCommitResult(commitError);
+    return ok;
+}
+function isUnknownTransactionCommitResult(err) {
+    const isNonDeterministicWriteConcernError = err instanceof error_1.MongoServerError &&
+        err.codeName &&
+        NON_DETERMINISTIC_WRITE_CONCERN_ERRORS.has(err.codeName);
+    return (isMaxTimeMSExpiredError(err) ||
+        (!isNonDeterministicWriteConcernError &&
+            err.code !== error_1.MONGODB_ERROR_CODES.UnsatisfiableWriteConcern &&
+            err.code !== error_1.MONGODB_ERROR_CODES.UnknownReplWriteConcern));
+}
+function maybeClearPinnedConnection(session, options) {
+    // unpin a connection if it has been pinned
+    const conn = session[kPinnedConnection];
+    const error = options?.error;
+    if (session.inTransaction() &&
+        error &&
+        error instanceof error_1.MongoError &&
+        error.hasErrorLabel(error_1.MongoErrorLabel.TransientTransactionError)) {
+        return;
+    }
+    const topology = session.client.topology;
+    // NOTE: the spec talks about what to do on a network error only, but the tests seem to
+    //       to validate that we don't unpin on _all_ errors?
+    if (conn && topology != null) {
+        const servers = Array.from(topology.s.servers.values());
+        const loadBalancer = servers[0];
+        if (options?.error == null || options?.force) {
+            loadBalancer.pool.checkIn(conn);
+            session[kPinnedConnection] = undefined;
+            conn.emit(constants_1.UNPINNED, session.transaction.state !== transactions_1.TxnState.NO_TRANSACTION
+                ? metrics_1.ConnectionPoolMetrics.TXN
+                : metrics_1.ConnectionPoolMetrics.CURSOR);
+            if (options?.forceClear) {
+                loadBalancer.pool.clear({ serviceId: conn.serviceId });
+            }
+        }
+    }
+}
+function isMaxTimeMSExpiredError(err) {
+    if (err == null || !(err instanceof error_1.MongoServerError)) {
+        return false;
+    }
+    return (err.code === error_1.MONGODB_ERROR_CODES.MaxTimeMSExpired ||
+        err.writeConcernError?.code === error_1.MONGODB_ERROR_CODES.MaxTimeMSExpired);
+}
+/**
+ * Reflects the existence of a session on the server. Can be reused by the session pool.
+ * WARNING: not meant to be instantiated directly. For internal use only.
+ * @public
+ */
+class ServerSession {
+    /** @internal */
+    constructor(cloned) {
+        if (cloned != null) {
+            const idBytes = Buffer.allocUnsafe(16);
+            idBytes.set(cloned.id.id.buffer);
+            this.id = { id: new bson_1.Binary(idBytes, cloned.id.id.sub_type) };
+            this.lastUse = cloned.lastUse;
+            this.txnNumber = cloned.txnNumber;
+            this.isDirty = cloned.isDirty;
+            return;
+        }
+        this.id = { id: new bson_1.Binary((0, utils_1.uuidV4)(), bson_1.Binary.SUBTYPE_UUID) };
+        this.lastUse = (0, utils_1.now)();
+        this.txnNumber = 0;
+        this.isDirty = false;
+    }
+    /**
+     * Determines if the server session has timed out.
+     *
+     * @param sessionTimeoutMinutes - The server's "logicalSessionTimeoutMinutes"
+     */
+    hasTimedOut(sessionTimeoutMinutes) {
+        // Take the difference of the lastUse timestamp and now, which will result in a value in
+        // milliseconds, and then convert milliseconds to minutes to compare to `sessionTimeoutMinutes`
+        const idleTimeMinutes = Math.round((((0, utils_1.calculateDurationInMs)(this.lastUse) % 86400000) % 3600000) / 60000);
+        return idleTimeMinutes > sessionTimeoutMinutes - 1;
+    }
+}
+exports.ServerSession = ServerSession;
+/**
+ * Maintains a pool of Server Sessions.
+ * For internal use only
+ * @internal
+ */
+class ServerSessionPool {
+    constructor(client) {
+        if (client == null) {
+            throw new error_1.MongoRuntimeError('ServerSessionPool requires a MongoClient');
+        }
+        this.client = client;
+        this.sessions = new utils_1.List();
+    }
+    /**
+     * Acquire a Server Session from the pool.
+     * Iterates through each session in the pool, removing any stale sessions
+     * along the way. The first non-stale session found is removed from the
+     * pool and returned. If no non-stale session is found, a new ServerSession is created.
+     */
+    acquire() {
+        const sessionTimeoutMinutes = this.client.topology?.logicalSessionTimeoutMinutes ?? 10;
+        let session = null;
+        // Try to obtain from session pool
+        while (this.sessions.length > 0) {
+            const potentialSession = this.sessions.shift();
+            if (potentialSession != null &&
+                (!!this.client.topology?.loadBalanced ||
+                    !potentialSession.hasTimedOut(sessionTimeoutMinutes))) {
+                session = potentialSession;
+                break;
+            }
+        }
+        // If nothing valid came from the pool make a new one
+        if (session == null) {
+            session = new ServerSession();
+        }
+        return session;
+    }
+    /**
+     * Release a session to the session pool
+     * Adds the session back to the session pool if the session has not timed out yet.
+     * This method also removes any stale sessions from the pool.
+     *
+     * @param session - The session to release to the pool
+     */
+    release(session) {
+        const sessionTimeoutMinutes = this.client.topology?.logicalSessionTimeoutMinutes ?? 10;
+        if (this.client.topology?.loadBalanced && !sessionTimeoutMinutes) {
+            this.sessions.unshift(session);
+        }
+        if (!sessionTimeoutMinutes) {
+            return;
+        }
+        this.sessions.prune(session => session.hasTimedOut(sessionTimeoutMinutes));
+        if (!session.hasTimedOut(sessionTimeoutMinutes)) {
+            if (session.isDirty) {
+                return;
+            }
+            // otherwise, readd this session to the session pool
+            this.sessions.unshift(session);
+        }
+    }
+}
+exports.ServerSessionPool = ServerSessionPool;
+/**
+ * Optionally decorate a command with sessions specific keys
+ *
+ * @param session - the session tracking transaction state
+ * @param command - the command to decorate
+ * @param options - Optional settings passed to calling operation
+ *
+ * @internal
+ */
+function applySession(session, command, options) {
+    if (session.hasEnded) {
+        return new error_1.MongoExpiredSessionError();
+    }
+    // May acquire serverSession here
+    const serverSession = session.serverSession;
+    if (serverSession == null) {
+        return new error_1.MongoRuntimeError('Unable to acquire server session');
+    }
+    if (options.writeConcern?.w === 0) {
+        if (session && session.explicit) {
+            // Error if user provided an explicit session to an unacknowledged write (SPEC-1019)
+            return new error_1.MongoAPIError('Cannot have explicit session with unacknowledged writes');
+        }
+        return;
+    }
+    // mark the last use of this session, and apply the `lsid`
+    serverSession.lastUse = (0, utils_1.now)();
+    command.lsid = serverSession.id;
+    const inTxnOrTxnCommand = session.inTransaction() || (0, transactions_1.isTransactionCommand)(command);
+    const isRetryableWrite = !!options.willRetryWrite;
+    if (isRetryableWrite || inTxnOrTxnCommand) {
+        serverSession.txnNumber += session[kTxnNumberIncrement];
+        session[kTxnNumberIncrement] = 0;
+        // TODO(NODE-2674): Preserve int64 sent from MongoDB
+        command.txnNumber = bson_1.Long.fromNumber(serverSession.txnNumber);
+    }
+    if (!inTxnOrTxnCommand) {
+        if (session.transaction.state !== transactions_1.TxnState.NO_TRANSACTION) {
+            session.transaction.transition(transactions_1.TxnState.NO_TRANSACTION);
+        }
+        if (session.supports.causalConsistency &&
+            session.operationTime &&
+            (0, utils_1.commandSupportsReadConcern)(command)) {
+            command.readConcern = command.readConcern || {};
+            Object.assign(command.readConcern, { afterClusterTime: session.operationTime });
+        }
+        else if (session[kSnapshotEnabled]) {
+            command.readConcern = command.readConcern || { level: read_concern_1.ReadConcernLevel.snapshot };
+            if (session[kSnapshotTime] != null) {
+                Object.assign(command.readConcern, { atClusterTime: session[kSnapshotTime] });
+            }
+        }
+        return;
+    }
+    // now attempt to apply transaction-specific sessions data
+    // `autocommit` must always be false to differentiate from retryable writes
+    command.autocommit = false;
+    if (session.transaction.state === transactions_1.TxnState.STARTING_TRANSACTION) {
+        session.transaction.transition(transactions_1.TxnState.TRANSACTION_IN_PROGRESS);
+        command.startTransaction = true;
+        const readConcern = session.transaction.options.readConcern || session?.clientOptions?.readConcern;
+        if (readConcern) {
+            command.readConcern = readConcern;
+        }
+        if (session.supports.causalConsistency && session.operationTime) {
+            command.readConcern = command.readConcern || {};
+            Object.assign(command.readConcern, { afterClusterTime: session.operationTime });
+        }
+    }
+    return;
+}
+function updateSessionFromResponse(session, document) {
+    if (document.$clusterTime) {
+        (0, common_1._advanceClusterTime)(session, document.$clusterTime);
+    }
+    if (document.operationTime && session && session.supports.causalConsistency) {
+        session.advanceOperationTime(document.operationTime);
+    }
+    if (document.recoveryToken && session && session.inTransaction()) {
+        session.transaction._recoveryToken = document.recoveryToken;
+    }
+    if (session?.[kSnapshotEnabled] && session[kSnapshotTime] == null) {
+        // find and aggregate commands return atClusterTime on the cursor
+        // distinct includes it in the response body
+        const atClusterTime = document.atClusterTime;
+        if (atClusterTime) {
+            session[kSnapshotTime] = atClusterTime;
+        }
+    }
+}
+//# sourceMappingURL=sessions.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/sessions.js.map b/backend/node_modules/mongodb/lib/sessions.js.map
new file mode 100644
index 0000000..a9c507a
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/sessions.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/sort.js b/backend/node_modules/mongodb/lib/sort.js
new file mode 100644
index 0000000..5fdb7f2
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/sort.js
@@ -0,0 +1,96 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.formatSort = formatSort;
+const error_1 = require("./error");
+/** @internal */
+function prepareDirection(direction = 1) {
+    const value = `${direction}`.toLowerCase();
+    if (isMeta(direction))
+        return direction;
+    switch (value) {
+        case 'ascending':
+        case 'asc':
+        case '1':
+            return 1;
+        case 'descending':
+        case 'desc':
+        case '-1':
+            return -1;
+        default:
+            throw new error_1.MongoInvalidArgumentError(`Invalid sort direction: ${JSON.stringify(direction)}`);
+    }
+}
+/** @internal */
+function isMeta(t) {
+    return typeof t === 'object' && t != null && '$meta' in t && typeof t.$meta === 'string';
+}
+/** @internal */
+function isPair(t) {
+    if (Array.isArray(t) && t.length === 2) {
+        try {
+            prepareDirection(t[1]);
+            return true;
+        }
+        catch {
+            return false;
+        }
+    }
+    return false;
+}
+function isDeep(t) {
+    return Array.isArray(t) && Array.isArray(t[0]);
+}
+function isMap(t) {
+    return t instanceof Map && t.size > 0;
+}
+/** @internal */
+function pairToMap(v) {
+    return new Map([[`${v[0]}`, prepareDirection([v[1]])]]);
+}
+/** @internal */
+function deepToMap(t) {
+    const sortEntries = t.map(([k, v]) => [`${k}`, prepareDirection(v)]);
+    return new Map(sortEntries);
+}
+/** @internal */
+function stringsToMap(t) {
+    const sortEntries = t.map(key => [`${key}`, 1]);
+    return new Map(sortEntries);
+}
+/** @internal */
+function objectToMap(t) {
+    const sortEntries = Object.entries(t).map(([k, v]) => [
+        `${k}`,
+        prepareDirection(v)
+    ]);
+    return new Map(sortEntries);
+}
+/** @internal */
+function mapToMap(t) {
+    const sortEntries = Array.from(t).map(([k, v]) => [
+        `${k}`,
+        prepareDirection(v)
+    ]);
+    return new Map(sortEntries);
+}
+/** converts a Sort type into a type that is valid for the server (SortForCmd) */
+function formatSort(sort, direction) {
+    if (sort == null)
+        return undefined;
+    if (typeof sort === 'string')
+        return new Map([[sort, prepareDirection(direction)]]);
+    if (typeof sort !== 'object') {
+        throw new error_1.MongoInvalidArgumentError(`Invalid sort format: ${JSON.stringify(sort)} Sort must be a valid object`);
+    }
+    if (!Array.isArray(sort)) {
+        return isMap(sort) ? mapToMap(sort) : Object.keys(sort).length ? objectToMap(sort) : undefined;
+    }
+    if (!sort.length)
+        return undefined;
+    if (isDeep(sort))
+        return deepToMap(sort);
+    if (isPair(sort))
+        return pairToMap(sort);
+    return stringsToMap(sort);
+}
+//# sourceMappingURL=sort.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/sort.js.map b/backend/node_modules/mongodb/lib/sort.js.map
new file mode 100644
index 0000000..05b2f44
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/sort.js.map
@@ -0,0 +1 @@
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diff --git a/backend/node_modules/mongodb/lib/timeout.js b/backend/node_modules/mongodb/lib/timeout.js
new file mode 100644
index 0000000..a2e5ea7
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/timeout.js
@@ -0,0 +1,291 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.LegacyTimeoutContext = exports.CSOTTimeoutContext = exports.TimeoutContext = exports.Timeout = exports.TimeoutError = void 0;
+const timers_1 = require("timers");
+const error_1 = require("./error");
+const utils_1 = require("./utils");
+/** @internal */
+class TimeoutError extends Error {
+    get name() {
+        return 'TimeoutError';
+    }
+    constructor(message, options) {
+        super(message, options);
+        this.duration = options.duration;
+    }
+    static is(error) {
+        return (error != null && typeof error === 'object' && 'name' in error && error.name === 'TimeoutError');
+    }
+}
+exports.TimeoutError = TimeoutError;
+/**
+ * @internal
+ * This class is an abstraction over timeouts
+ * The Timeout class can only be in the pending or rejected states. It is guaranteed not to resolve
+ * if interacted with exclusively through its public API
+ * */
+class Timeout extends Promise {
+    get remainingTime() {
+        if (this.timedOut)
+            return 0;
+        if (this.duration === 0)
+            return Infinity;
+        return this.start + this.duration - Math.trunc(performance.now());
+    }
+    get timeElapsed() {
+        return Math.trunc(performance.now()) - this.start;
+    }
+    /** Create a new timeout that expires in `duration` ms */
+    constructor(executor = () => null, options) {
+        const duration = options?.duration ?? 0;
+        const unref = !!options?.unref;
+        const rejection = options?.rejection;
+        if (duration < 0) {
+            throw new error_1.MongoInvalidArgumentError('Cannot create a Timeout with a negative duration');
+        }
+        let reject;
+        super((_, promiseReject) => {
+            reject = promiseReject;
+            executor(utils_1.noop, promiseReject);
+        });
+        this.ended = null;
+        this.timedOut = false;
+        this.cleared = false;
+        this.duration = duration;
+        this.start = Math.trunc(performance.now());
+        if (rejection == null && this.duration > 0) {
+            this.id = (0, timers_1.setTimeout)(() => {
+                this.ended = Math.trunc(performance.now());
+                this.timedOut = true;
+                reject(new TimeoutError(`Expired after ${duration}ms`, { duration }));
+            }, this.duration);
+            if (typeof this.id.unref === 'function' && unref) {
+                // Ensure we do not keep the Node.js event loop running
+                this.id.unref();
+            }
+        }
+        else if (rejection != null) {
+            this.ended = Math.trunc(performance.now());
+            this.timedOut = true;
+            reject(rejection);
+        }
+    }
+    /**
+     * Clears the underlying timeout. This method is idempotent
+     */
+    clear() {
+        (0, timers_1.clearTimeout)(this.id);
+        this.id = undefined;
+        this.timedOut = false;
+        this.cleared = true;
+    }
+    throwIfExpired() {
+        if (this.timedOut)
+            throw new TimeoutError('Timed out', { duration: this.duration });
+    }
+    static expires(duration, unref) {
+        return new Timeout(undefined, { duration, unref });
+    }
+    static reject(rejection) {
+        return new Timeout(undefined, { duration: 0, unref: true, rejection });
+    }
+}
+exports.Timeout = Timeout;
+function isLegacyTimeoutContextOptions(v) {
+    return (v != null &&
+        typeof v === 'object' &&
+        'serverSelectionTimeoutMS' in v &&
+        typeof v.serverSelectionTimeoutMS === 'number' &&
+        'waitQueueTimeoutMS' in v &&
+        typeof v.waitQueueTimeoutMS === 'number');
+}
+function isCSOTTimeoutContextOptions(v) {
+    return (v != null &&
+        typeof v === 'object' &&
+        'serverSelectionTimeoutMS' in v &&
+        typeof v.serverSelectionTimeoutMS === 'number' &&
+        'timeoutMS' in v &&
+        typeof v.timeoutMS === 'number');
+}
+/** @internal */
+class TimeoutContext {
+    static create(options) {
+        if (options.session?.timeoutContext != null)
+            return options.session?.timeoutContext;
+        if (isCSOTTimeoutContextOptions(options))
+            return new CSOTTimeoutContext(options);
+        else if (isLegacyTimeoutContextOptions(options))
+            return new LegacyTimeoutContext(options);
+        else
+            throw new error_1.MongoRuntimeError('Unrecognized options');
+    }
+}
+exports.TimeoutContext = TimeoutContext;
+/** @internal */
+class CSOTTimeoutContext extends TimeoutContext {
+    constructor(options) {
+        super();
+        this.minRoundTripTime = 0;
+        this.start = Math.trunc(performance.now());
+        this.timeoutMS = options.timeoutMS;
+        this.serverSelectionTimeoutMS = options.serverSelectionTimeoutMS;
+        this.socketTimeoutMS = options.socketTimeoutMS;
+        this.clearServerSelectionTimeout = false;
+    }
+    get maxTimeMS() {
+        return this.remainingTimeMS - this.minRoundTripTime;
+    }
+    get remainingTimeMS() {
+        const timePassed = Math.trunc(performance.now()) - this.start;
+        return this.timeoutMS <= 0 ? Infinity : this.timeoutMS - timePassed;
+    }
+    csotEnabled() {
+        return true;
+    }
+    get serverSelectionTimeout() {
+        // check for undefined
+        if (typeof this._serverSelectionTimeout !== 'object' || this._serverSelectionTimeout?.cleared) {
+            const { remainingTimeMS, serverSelectionTimeoutMS } = this;
+            if (remainingTimeMS <= 0)
+                return Timeout.reject(new error_1.MongoOperationTimeoutError(`Timed out in server selection after ${this.timeoutMS}ms`));
+            const usingServerSelectionTimeoutMS = serverSelectionTimeoutMS !== 0 &&
+                (0, utils_1.csotMin)(remainingTimeMS, serverSelectionTimeoutMS) === serverSelectionTimeoutMS;
+            if (usingServerSelectionTimeoutMS) {
+                this._serverSelectionTimeout = Timeout.expires(serverSelectionTimeoutMS);
+            }
+            else {
+                if (remainingTimeMS > 0 && Number.isFinite(remainingTimeMS)) {
+                    this._serverSelectionTimeout = Timeout.expires(remainingTimeMS);
+                }
+                else {
+                    this._serverSelectionTimeout = null;
+                }
+            }
+        }
+        return this._serverSelectionTimeout;
+    }
+    get connectionCheckoutTimeout() {
+        if (typeof this._connectionCheckoutTimeout !== 'object' ||
+            this._connectionCheckoutTimeout?.cleared) {
+            if (typeof this._serverSelectionTimeout === 'object') {
+                // null or Timeout
+                this._connectionCheckoutTimeout = this._serverSelectionTimeout;
+            }
+            else {
+                throw new error_1.MongoRuntimeError('Unreachable. If you are seeing this error, please file a ticket on the NODE driver project on Jira');
+            }
+        }
+        return this._connectionCheckoutTimeout;
+    }
+    get timeoutForSocketWrite() {
+        const { remainingTimeMS } = this;
+        if (!Number.isFinite(remainingTimeMS))
+            return null;
+        if (remainingTimeMS > 0)
+            return Timeout.expires(remainingTimeMS);
+        return Timeout.reject(new error_1.MongoOperationTimeoutError('Timed out before socket write'));
+    }
+    get timeoutForSocketRead() {
+        const { remainingTimeMS } = this;
+        if (!Number.isFinite(remainingTimeMS))
+            return null;
+        if (remainingTimeMS > 0)
+            return Timeout.expires(remainingTimeMS);
+        return Timeout.reject(new error_1.MongoOperationTimeoutError('Timed out before socket read'));
+    }
+    refresh() {
+        this.start = Math.trunc(performance.now());
+        this.minRoundTripTime = 0;
+        this._serverSelectionTimeout?.clear();
+        this._connectionCheckoutTimeout?.clear();
+    }
+    clear() {
+        this._serverSelectionTimeout?.clear();
+        this._connectionCheckoutTimeout?.clear();
+    }
+    /**
+     * @internal
+     * Throws a MongoOperationTimeoutError if the context has expired.
+     * If the context has not expired, returns the `remainingTimeMS`
+     **/
+    getRemainingTimeMSOrThrow(message) {
+        const { remainingTimeMS } = this;
+        if (remainingTimeMS <= 0)
+            throw new error_1.MongoOperationTimeoutError(message ?? `Expired after ${this.timeoutMS}ms`);
+        return remainingTimeMS;
+    }
+    /**
+     * @internal
+     * This method is intended to be used in situations where concurrent operation are on the same deadline, but cannot share a single `TimeoutContext` instance.
+     * Returns a new instance of `CSOTTimeoutContext` constructed with identical options, but setting the `start` property to `this.start`.
+     */
+    clone() {
+        const timeoutContext = new CSOTTimeoutContext({
+            timeoutMS: this.timeoutMS,
+            serverSelectionTimeoutMS: this.serverSelectionTimeoutMS
+        });
+        timeoutContext.start = this.start;
+        return timeoutContext;
+    }
+    refreshed() {
+        return new CSOTTimeoutContext(this);
+    }
+    addMaxTimeMSToCommand(command, options) {
+        if (options.omitMaxTimeMS)
+            return;
+        const maxTimeMS = this.remainingTimeMS - this.minRoundTripTime;
+        if (maxTimeMS > 0 && Number.isFinite(maxTimeMS))
+            command.maxTimeMS = maxTimeMS;
+    }
+    getSocketTimeoutMS() {
+        return 0;
+    }
+}
+exports.CSOTTimeoutContext = CSOTTimeoutContext;
+/** @internal */
+class LegacyTimeoutContext extends TimeoutContext {
+    constructor(options) {
+        super();
+        this.options = options;
+        this.clearServerSelectionTimeout = true;
+    }
+    csotEnabled() {
+        return false;
+    }
+    get serverSelectionTimeout() {
+        if (this.options.serverSelectionTimeoutMS != null && this.options.serverSelectionTimeoutMS > 0)
+            return Timeout.expires(this.options.serverSelectionTimeoutMS);
+        return null;
+    }
+    get connectionCheckoutTimeout() {
+        if (this.options.waitQueueTimeoutMS != null && this.options.waitQueueTimeoutMS > 0)
+            return Timeout.expires(this.options.waitQueueTimeoutMS);
+        return null;
+    }
+    get timeoutForSocketWrite() {
+        return null;
+    }
+    get timeoutForSocketRead() {
+        return null;
+    }
+    refresh() {
+        return;
+    }
+    clear() {
+        return;
+    }
+    get maxTimeMS() {
+        return null;
+    }
+    refreshed() {
+        return new LegacyTimeoutContext(this.options);
+    }
+    addMaxTimeMSToCommand(_command, _options) {
+        // No max timeMS is added to commands in legacy timeout mode.
+    }
+    getSocketTimeoutMS() {
+        return this.options.socketTimeoutMS;
+    }
+}
+exports.LegacyTimeoutContext = LegacyTimeoutContext;
+//# sourceMappingURL=timeout.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/timeout.js.map b/backend/node_modules/mongodb/lib/timeout.js.map
new file mode 100644
index 0000000..2666da8
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/timeout.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"timeout.js","sourceRoot":"","sources":["../src/timeout.ts"],"names":[],"mappings":";;;AAAA,mCAAkD;AAGlD,mCAAmG;AAEnG,mCAAwC;AAExC,gBAAgB;AAChB,MAAa,YAAa,SAAQ,KAAK;IAErC,IAAa,IAAI;QACf,OAAO,cAAc,CAAC;IACxB,CAAC;IAED,YAAY,OAAe,EAAE,OAA4C;QACvE,KAAK,CAAC,OAAO,EAAE,OAAO,CAAC,CAAC;QACxB,IAAI,CAAC,QAAQ,GAAG,OAAO,CAAC,QAAQ,CAAC;IACnC,CAAC;IAED,MAAM,CAAC,EAAE,CAAC,KAAc;QACtB,OAAO,CACL,KAAK,IAAI,IAAI,IAAI,OAAO,KAAK,KAAK,QAAQ,IAAI,MAAM,IAAI,KAAK,IAAI,KAAK,CAAC,IAAI,KAAK,cAAc,CAC/F,CAAC;IACJ,CAAC;CACF;AAhBD,oCAgBC;AAID;;;;;KAKK;AACL,MAAa,OAAQ,SAAQ,OAAc;IASzC,IAAI,aAAa;QACf,IAAI,IAAI,CAAC,QAAQ;YAAE,OAAO,CAAC,CAAC;QAC5B,IAAI,IAAI,CAAC,QAAQ,KAAK,CAAC;YAAE,OAAO,QAAQ,CAAC;QACzC,OAAO,IAAI,CAAC,KAAK,GAAG,IAAI,CAAC,QAAQ,GAAG,IAAI,CAAC,KAAK,CAAC,WAAW,CAAC,GAAG,EAAE,CAAC,CAAC;IACpE,CAAC;IAED,IAAI,WAAW;QACb,OAAO,IAAI,CAAC,KAAK,CAAC,WAAW,CAAC,GAAG,EAAE,CAAC,GAAG,IAAI,CAAC,KAAK,CAAC;IACpD,CAAC;IAED,yDAAyD;IACzD,YACE,WAAqB,GAAG,EAAE,CAAC,IAAI,EAC/B,OAA+D;QAE/D,MAAM,QAAQ,GAAG,OAAO,EAAE,QAAQ,IAAI,CAAC,CAAC;QACxC,MAAM,KAAK,GAAG,CAAC,CAAC,OAAO,EAAE,KAAK,CAAC;QAC/B,MAAM,SAAS,GAAG,OAAO,EAAE,SAAS,CAAC;QAErC,IAAI,QAAQ,GAAG,CAAC,EAAE,CAAC;YACjB,MAAM,IAAI,iCAAyB,CAAC,kDAAkD,CAAC,CAAC;QAC1F,CAAC;QAED,IAAI,MAAe,CAAC;QACpB,KAAK,CAAC,CAAC,CAAC,EAAE,aAAa,EAAE,EAAE;YACzB,MAAM,GAAG,aAAa,CAAC;YAEvB,QAAQ,CAAC,YAAI,EAAE,aAAa,CAAC,CAAC;QAChC,CAAC,CAAC,CAAC;QAjCE,UAAK,GAAkB,IAAI,CAAC;QAE3B,aAAQ,GAAG,KAAK,CAAC;QAClB,YAAO,GAAG,KAAK,CAAC;QAgCrB,IAAI,CAAC,QAAQ,GAAG,QAAQ,CAAC;QACzB,IAAI,CAAC,KAAK,GAAG,IAAI,CAAC,KAAK,CAAC,WAAW,CAAC,GAAG,EAAE,CAAC,CAAC;QAE3C,IAAI,SAAS,IAAI,IAAI,IAAI,IAAI,CAAC,QAAQ,GAAG,CAAC,EAAE,CAAC;YAC3C,IAAI,CAAC,EAAE,GAAG,IAAA,mBAAU,EAAC,GAAG,EAAE;gBACxB,IAAI,CAAC,KAAK,GAAG,IAAI,CAAC,KAAK,CAAC,WAAW,CAAC,GAAG,EAAE,CAAC,CAAC;gBAC3C,IAAI,CAAC,QAAQ,GAAG,IAAI,CAAC;gBACrB,MAAM,CAAC,IAAI,YAAY,CAAC,iBAAiB,QAAQ,IAAI,EAAE,EAAE,QAAQ,EAAE,CAAC,CAAC,CAAC;YACxE,CAAC,EAAE,IAAI,CAAC,QAAQ,CAAC,CAAC;YAClB,IAAI,OAAO,IAAI,CAAC,EAAE,CAAC,KAAK,KAAK,UAAU,IAAI,KAAK,EAAE,CAAC;gBACjD,uDAAuD;gBACvD,IAAI,CAAC,EAAE,CAAC,KAAK,EAAE,CAAC;YAClB,CAAC;QACH,CAAC;aAAM,IAAI,SAAS,IAAI,IAAI,EAAE,CAAC;YAC7B,IAAI,CAAC,KAAK,GAAG,IAAI,CAAC,KAAK,CAAC,WAAW,CAAC,GAAG,EAAE,CAAC,CAAC;YAC3C,IAAI,CAAC,QAAQ,GAAG,IAAI,CAAC;YACrB,MAAM,CAAC,SAAS,CAAC,CAAC;QACpB,CAAC;IACH,CAAC;IAED;;OAEG;IACH,KAAK;QACH,IAAA,qBAAY,EAAC,IAAI,CAAC,EAAE,CAAC,CAAC;QACtB,IAAI,CAAC,EAAE,GAAG,SAAS,CAAC;QACpB,IAAI,CAAC,QAAQ,GAAG,KAAK,CAAC;QACtB,IAAI,CAAC,OAAO,GAAG,IAAI,CAAC;IACtB,CAAC;IAED,cAAc;QACZ,IAAI,IAAI,CAAC,QAAQ;YAAE,MAAM,IAAI,YAAY,CAAC,WAAW,EAAE,EAAE,QAAQ,EAAE,IAAI,CAAC,QAAQ,EAAE,CAAC,CAAC;IACtF,CAAC;IAEM,MAAM,CAAC,OAAO,CAAC,QAAgB,EAAE,KAAY;QAClD,OAAO,IAAI,OAAO,CAAC,SAAS,EAAE,EAAE,QAAQ,EAAE,KAAK,EAAE,CAAC,CAAC;IACrD,CAAC;IAED,MAAM,CAAU,MAAM,CAAC,SAAiB;QACtC,OAAO,IAAI,OAAO,CAAC,SAAS,EAAE,EAAE,QAAQ,EAAE,CAAC,EAAE,KAAK,EAAE,IAAI,EAAE,SAAS,EAAE,CAAC,CAAC;IACzE,CAAC;CACF;AAhFD,0BAgFC;AAqBD,SAAS,6BAA6B,CAAC,CAAU;IAC/C,OAAO,CACL,CAAC,IAAI,IAAI;QACT,OAAO,CAAC,KAAK,QAAQ;QACrB,0BAA0B,IAAI,CAAC;QAC/B,OAAO,CAAC,CAAC,wBAAwB,KAAK,QAAQ;QAC9C,oBAAoB,IAAI,CAAC;QACzB,OAAO,CAAC,CAAC,kBAAkB,KAAK,QAAQ,CACzC,CAAC;AACJ,CAAC;AAED,SAAS,2BAA2B,CAAC,CAAU;IAC7C,OAAO,CACL,CAAC,IAAI,IAAI;QACT,OAAO,CAAC,KAAK,QAAQ;QACrB,0BAA0B,IAAI,CAAC;QAC/B,OAAO,CAAC,CAAC,wBAAwB,KAAK,QAAQ;QAC9C,WAAW,IAAI,CAAC;QAChB,OAAO,CAAC,CAAC,SAAS,KAAK,QAAQ,CAChC,CAAC;AACJ,CAAC;AAED,gBAAgB;AAChB,MAAsB,cAAc;IAClC,MAAM,CAAC,MAAM,CAAC,OAA8B;QAC1C,IAAI,OAAO,CAAC,OAAO,EAAE,cAAc,IAAI,IAAI;YAAE,OAAO,OAAO,CAAC,OAAO,EAAE,cAAc,CAAC;QACpF,IAAI,2BAA2B,CAAC,OAAO,CAAC;YAAE,OAAO,IAAI,kBAAkB,CAAC,OAAO,CAAC,CAAC;aAC5E,IAAI,6BAA6B,CAAC,OAAO,CAAC;YAAE,OAAO,IAAI,oBAAoB,CAAC,OAAO,CAAC,CAAC;;YACrF,MAAM,IAAI,yBAAiB,CAAC,sBAAsB,CAAC,CAAC;IAC3D,CAAC;CA0BF;AAhCD,wCAgCC;AAED,gBAAgB;AAChB,MAAa,kBAAmB,SAAQ,cAAc;IAYpD,YAAY,OAAkC;QAC5C,KAAK,EAAE,CAAC;QAJH,qBAAgB,GAAG,CAAC,CAAC;QAK1B,IAAI,CAAC,KAAK,GAAG,IAAI,CAAC,KAAK,CAAC,WAAW,CAAC,GAAG,EAAE,CAAC,CAAC;QAE3C,IAAI,CAAC,SAAS,GAAG,OAAO,CAAC,SAAS,CAAC;QAEnC,IAAI,CAAC,wBAAwB,GAAG,OAAO,CAAC,wBAAwB,CAAC;QAEjE,IAAI,CAAC,eAAe,GAAG,OAAO,CAAC,eAAe,CAAC;QAE/C,IAAI,CAAC,2BAA2B,GAAG,KAAK,CAAC;IAC3C,CAAC;IAED,IAAI,SAAS;QACX,OAAO,IAAI,CAAC,eAAe,GAAG,IAAI,CAAC,gBAAgB,CAAC;IACtD,CAAC;IAED,IAAI,eAAe;QACjB,MAAM,UAAU,GAAG,IAAI,CAAC,KAAK,CAAC,WAAW,CAAC,GAAG,EAAE,CAAC,GAAG,IAAI,CAAC,KAAK,CAAC;QAC9D,OAAO,IAAI,CAAC,SAAS,IAAI,CAAC,CAAC,CAAC,CAAC,QAAQ,CAAC,CAAC,CAAC,IAAI,CAAC,SAAS,GAAG,UAAU,CAAC;IACtE,CAAC;IAED,WAAW;QACT,OAAO,IAAI,CAAC;IACd,CAAC;IAED,IAAI,sBAAsB;QACxB,sBAAsB;QACtB,IAAI,OAAO,IAAI,CAAC,uBAAuB,KAAK,QAAQ,IAAI,IAAI,CAAC,uBAAuB,EAAE,OAAO,EAAE,CAAC;YAC9F,MAAM,EAAE,eAAe,EAAE,wBAAwB,EAAE,GAAG,IAAI,CAAC;YAC3D,IAAI,eAAe,IAAI,CAAC;gBACtB,OAAO,OAAO,CAAC,MAAM,CACnB,IAAI,kCAA0B,CAAC,uCAAuC,IAAI,CAAC,SAAS,IAAI,CAAC,CAC1F,CAAC;YACJ,MAAM,6BAA6B,GACjC,wBAAwB,KAAK,CAAC;gBAC9B,IAAA,eAAO,EAAC,eAAe,EAAE,wBAAwB,CAAC,KAAK,wBAAwB,CAAC;YAClF,IAAI,6BAA6B,EAAE,CAAC;gBAClC,IAAI,CAAC,uBAAuB,GAAG,OAAO,CAAC,OAAO,CAAC,wBAAwB,CAAC,CAAC;YAC3E,CAAC;iBAAM,CAAC;gBACN,IAAI,eAAe,GAAG,CAAC,IAAI,MAAM,CAAC,QAAQ,CAAC,eAAe,CAAC,EAAE,CAAC;oBAC5D,IAAI,CAAC,uBAAuB,GAAG,OAAO,CAAC,OAAO,CAAC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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/transactions.js b/backend/node_modules/mongodb/lib/transactions.js
new file mode 100644
index 0000000..4cdc315
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/transactions.js
@@ -0,0 +1,138 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Transaction = exports.TxnState = void 0;
+exports.isTransactionCommand = isTransactionCommand;
+const error_1 = require("./error");
+const read_concern_1 = require("./read_concern");
+const read_preference_1 = require("./read_preference");
+const write_concern_1 = require("./write_concern");
+/** @internal */
+exports.TxnState = Object.freeze({
+    NO_TRANSACTION: 'NO_TRANSACTION',
+    STARTING_TRANSACTION: 'STARTING_TRANSACTION',
+    TRANSACTION_IN_PROGRESS: 'TRANSACTION_IN_PROGRESS',
+    TRANSACTION_COMMITTED: 'TRANSACTION_COMMITTED',
+    TRANSACTION_COMMITTED_EMPTY: 'TRANSACTION_COMMITTED_EMPTY',
+    TRANSACTION_ABORTED: 'TRANSACTION_ABORTED'
+});
+const stateMachine = {
+    [exports.TxnState.NO_TRANSACTION]: [exports.TxnState.NO_TRANSACTION, exports.TxnState.STARTING_TRANSACTION],
+    [exports.TxnState.STARTING_TRANSACTION]: [
+        exports.TxnState.TRANSACTION_IN_PROGRESS,
+        exports.TxnState.TRANSACTION_COMMITTED,
+        exports.TxnState.TRANSACTION_COMMITTED_EMPTY,
+        exports.TxnState.TRANSACTION_ABORTED
+    ],
+    [exports.TxnState.TRANSACTION_IN_PROGRESS]: [
+        exports.TxnState.TRANSACTION_IN_PROGRESS,
+        exports.TxnState.TRANSACTION_COMMITTED,
+        exports.TxnState.TRANSACTION_ABORTED
+    ],
+    [exports.TxnState.TRANSACTION_COMMITTED]: [
+        exports.TxnState.TRANSACTION_COMMITTED,
+        exports.TxnState.TRANSACTION_COMMITTED_EMPTY,
+        exports.TxnState.STARTING_TRANSACTION,
+        exports.TxnState.NO_TRANSACTION
+    ],
+    [exports.TxnState.TRANSACTION_ABORTED]: [exports.TxnState.STARTING_TRANSACTION, exports.TxnState.NO_TRANSACTION],
+    [exports.TxnState.TRANSACTION_COMMITTED_EMPTY]: [
+        exports.TxnState.TRANSACTION_COMMITTED_EMPTY,
+        exports.TxnState.NO_TRANSACTION
+    ]
+};
+const ACTIVE_STATES = new Set([
+    exports.TxnState.STARTING_TRANSACTION,
+    exports.TxnState.TRANSACTION_IN_PROGRESS
+]);
+const COMMITTED_STATES = new Set([
+    exports.TxnState.TRANSACTION_COMMITTED,
+    exports.TxnState.TRANSACTION_COMMITTED_EMPTY,
+    exports.TxnState.TRANSACTION_ABORTED
+]);
+/**
+ * @public
+ * A class maintaining state related to a server transaction. Internal Only
+ */
+class Transaction {
+    /** Create a transaction @internal */
+    constructor(options) {
+        options = options ?? {};
+        this.state = exports.TxnState.NO_TRANSACTION;
+        this.options = {};
+        const writeConcern = write_concern_1.WriteConcern.fromOptions(options);
+        if (writeConcern) {
+            if (writeConcern.w === 0) {
+                throw new error_1.MongoTransactionError('Transactions do not support unacknowledged write concern');
+            }
+            this.options.writeConcern = writeConcern;
+        }
+        if (options.readConcern) {
+            this.options.readConcern = read_concern_1.ReadConcern.fromOptions(options);
+        }
+        if (options.readPreference) {
+            this.options.readPreference = read_preference_1.ReadPreference.fromOptions(options);
+        }
+        if (options.maxCommitTimeMS) {
+            this.options.maxTimeMS = options.maxCommitTimeMS;
+        }
+        // TODO: This isn't technically necessary
+        this._pinnedServer = undefined;
+        this._recoveryToken = undefined;
+    }
+    /** @internal */
+    get server() {
+        return this._pinnedServer;
+    }
+    get recoveryToken() {
+        return this._recoveryToken;
+    }
+    get isPinned() {
+        return !!this.server;
+    }
+    /** @returns Whether the transaction has started */
+    get isStarting() {
+        return this.state === exports.TxnState.STARTING_TRANSACTION;
+    }
+    /**
+     * @returns Whether this session is presently in a transaction
+     */
+    get isActive() {
+        return ACTIVE_STATES.has(this.state);
+    }
+    get isCommitted() {
+        return COMMITTED_STATES.has(this.state);
+    }
+    /**
+     * Transition the transaction in the state machine
+     * @internal
+     * @param nextState - The new state to transition to
+     */
+    transition(nextState) {
+        const nextStates = stateMachine[this.state];
+        if (nextStates && nextStates.includes(nextState)) {
+            this.state = nextState;
+            if (this.state === exports.TxnState.NO_TRANSACTION ||
+                this.state === exports.TxnState.STARTING_TRANSACTION ||
+                this.state === exports.TxnState.TRANSACTION_ABORTED) {
+                this.unpinServer();
+            }
+            return;
+        }
+        throw new error_1.MongoRuntimeError(`Attempted illegal state transition from [${this.state}] to [${nextState}]`);
+    }
+    /** @internal */
+    pinServer(server) {
+        if (this.isActive) {
+            this._pinnedServer = server;
+        }
+    }
+    /** @internal */
+    unpinServer() {
+        this._pinnedServer = undefined;
+    }
+}
+exports.Transaction = Transaction;
+function isTransactionCommand(command) {
+    return !!(command.commitTransaction || command.abortTransaction);
+}
+//# sourceMappingURL=transactions.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/transactions.js.map b/backend/node_modules/mongodb/lib/transactions.js.map
new file mode 100644
index 0000000..9e5f3b8
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/transactions.js.map
@@ -0,0 +1 @@
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diff --git a/backend/node_modules/mongodb/lib/utils.js b/backend/node_modules/mongodb/lib/utils.js
new file mode 100644
index 0000000..e595ecf
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/utils.js
@@ -0,0 +1,1174 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.randomBytes = exports.COSMOS_DB_MSG = exports.DOCUMENT_DB_MSG = exports.COSMOS_DB_CHECK = exports.DOCUMENT_DB_CHECK = exports.MONGODB_WARNING_CODE = exports.DEFAULT_PK_FACTORY = exports.HostAddress = exports.BufferPool = exports.List = exports.MongoDBCollectionNamespace = exports.MongoDBNamespace = exports.ByteUtils = void 0;
+exports.isUint8Array = isUint8Array;
+exports.hostMatchesWildcards = hostMatchesWildcards;
+exports.normalizeHintField = normalizeHintField;
+exports.isObject = isObject;
+exports.mergeOptions = mergeOptions;
+exports.filterOptions = filterOptions;
+exports.applyRetryableWrites = applyRetryableWrites;
+exports.isPromiseLike = isPromiseLike;
+exports.decorateWithCollation = decorateWithCollation;
+exports.decorateWithReadConcern = decorateWithReadConcern;
+exports.getTopology = getTopology;
+exports.ns = ns;
+exports.makeCounter = makeCounter;
+exports.uuidV4 = uuidV4;
+exports.maxWireVersion = maxWireVersion;
+exports.arrayStrictEqual = arrayStrictEqual;
+exports.errorStrictEqual = errorStrictEqual;
+exports.makeStateMachine = makeStateMachine;
+exports.now = now;
+exports.calculateDurationInMs = calculateDurationInMs;
+exports.hasAtomicOperators = hasAtomicOperators;
+exports.resolveTimeoutOptions = resolveTimeoutOptions;
+exports.resolveOptions = resolveOptions;
+exports.isSuperset = isSuperset;
+exports.isHello = isHello;
+exports.setDifference = setDifference;
+exports.isRecord = isRecord;
+exports.deepCopy = deepCopy;
+exports.emitWarning = emitWarning;
+exports.emitWarningOnce = emitWarningOnce;
+exports.enumToString = enumToString;
+exports.supportsRetryableWrites = supportsRetryableWrites;
+exports.shuffle = shuffle;
+exports.commandSupportsReadConcern = commandSupportsReadConcern;
+exports.compareObjectId = compareObjectId;
+exports.parseInteger = parseInteger;
+exports.parseUnsignedInteger = parseUnsignedInteger;
+exports.checkParentDomainMatch = checkParentDomainMatch;
+exports.get = get;
+exports.request = request;
+exports.isHostMatch = isHostMatch;
+exports.promiseWithResolvers = promiseWithResolvers;
+exports.squashError = squashError;
+exports.once = once;
+exports.maybeAddIdToDocuments = maybeAddIdToDocuments;
+exports.fileIsAccessible = fileIsAccessible;
+exports.csotMin = csotMin;
+exports.noop = noop;
+exports.decorateDecryptionResult = decorateDecryptionResult;
+const crypto = require("crypto");
+const fs_1 = require("fs");
+const http = require("http");
+const timers_1 = require("timers");
+const url = require("url");
+const url_1 = require("url");
+const util_1 = require("util");
+const bson_1 = require("./bson");
+const constants_1 = require("./cmap/wire_protocol/constants");
+const constants_2 = require("./constants");
+const error_1 = require("./error");
+const read_concern_1 = require("./read_concern");
+const read_preference_1 = require("./read_preference");
+const common_1 = require("./sdam/common");
+const write_concern_1 = require("./write_concern");
+exports.ByteUtils = {
+    toLocalBufferType(buffer) {
+        return Buffer.isBuffer(buffer)
+            ? buffer
+            : Buffer.from(buffer.buffer, buffer.byteOffset, buffer.byteLength);
+    },
+    equals(seqA, seqB) {
+        return exports.ByteUtils.toLocalBufferType(seqA).equals(seqB);
+    },
+    compare(seqA, seqB) {
+        return exports.ByteUtils.toLocalBufferType(seqA).compare(seqB);
+    },
+    toBase64(uint8array) {
+        return exports.ByteUtils.toLocalBufferType(uint8array).toString('base64');
+    }
+};
+/**
+ * Returns true if value is a Uint8Array or a Buffer
+ * @param value - any value that may be a Uint8Array
+ */
+function isUint8Array(value) {
+    return (value != null &&
+        typeof value === 'object' &&
+        Symbol.toStringTag in value &&
+        value[Symbol.toStringTag] === 'Uint8Array');
+}
+/**
+ * Determines if a connection's address matches a user provided list
+ * of domain wildcards.
+ */
+function hostMatchesWildcards(host, wildcards) {
+    for (const wildcard of wildcards) {
+        if (host === wildcard ||
+            (wildcard.startsWith('*.') && host?.endsWith(wildcard.substring(2, wildcard.length))) ||
+            (wildcard.startsWith('*/') && host?.endsWith(wildcard.substring(2, wildcard.length)))) {
+            return true;
+        }
+    }
+    return false;
+}
+/**
+ * Ensure Hint field is in a shape we expect:
+ * - object of index names mapping to 1 or -1
+ * - just an index name
+ * @internal
+ */
+function normalizeHintField(hint) {
+    let finalHint = undefined;
+    if (typeof hint === 'string') {
+        finalHint = hint;
+    }
+    else if (Array.isArray(hint)) {
+        finalHint = {};
+        hint.forEach(param => {
+            finalHint[param] = 1;
+        });
+    }
+    else if (hint != null && typeof hint === 'object') {
+        finalHint = {};
+        for (const name in hint) {
+            finalHint[name] = hint[name];
+        }
+    }
+    return finalHint;
+}
+const TO_STRING = (object) => Object.prototype.toString.call(object);
+/**
+ * Checks if arg is an Object:
+ * - **NOTE**: the check is based on the `[Symbol.toStringTag]() === 'Object'`
+ * @internal
+ */
+function isObject(arg) {
+    return '[object Object]' === TO_STRING(arg);
+}
+/** @internal */
+function mergeOptions(target, source) {
+    return { ...target, ...source };
+}
+/** @internal */
+function filterOptions(options, names) {
+    const filterOptions = {};
+    for (const name in options) {
+        if (names.includes(name)) {
+            filterOptions[name] = options[name];
+        }
+    }
+    // Filtered options
+    return filterOptions;
+}
+/**
+ * Applies retryWrites: true to a command if retryWrites is set on the command's database.
+ * @internal
+ *
+ * @param target - The target command to which we will apply retryWrites.
+ * @param db - The database from which we can inherit a retryWrites value.
+ */
+function applyRetryableWrites(target, db) {
+    if (db && db.s.options?.retryWrites) {
+        target.retryWrites = true;
+    }
+    return target;
+}
+/**
+ * Applies a write concern to a command based on well defined inheritance rules, optionally
+ * detecting support for the write concern in the first place.
+ * @internal
+ *
+ * @param target - the target command we will be applying the write concern to
+ * @param sources - sources where we can inherit default write concerns from
+ * @param options - optional settings passed into a command for write concern overrides
+ */
+/**
+ * Checks if a given value is a Promise
+ *
+ * @typeParam T - The resolution type of the possible promise
+ * @param value - An object that could be a promise
+ * @returns true if the provided value is a Promise
+ */
+function isPromiseLike(value) {
+    return (value != null &&
+        typeof value === 'object' &&
+        'then' in value &&
+        typeof value.then === 'function');
+}
+/**
+ * Applies collation to a given command.
+ * @internal
+ *
+ * @param command - the command on which to apply collation
+ * @param target - target of command
+ * @param options - options containing collation settings
+ */
+function decorateWithCollation(command, target, options) {
+    const capabilities = getTopology(target).capabilities;
+    if (options.collation && typeof options.collation === 'object') {
+        if (capabilities && capabilities.commandsTakeCollation) {
+            command.collation = options.collation;
+        }
+        else {
+            throw new error_1.MongoCompatibilityError(`Current topology does not support collation`);
+        }
+    }
+}
+/**
+ * Applies a read concern to a given command.
+ * @internal
+ *
+ * @param command - the command on which to apply the read concern
+ * @param coll - the parent collection of the operation calling this method
+ */
+function decorateWithReadConcern(command, coll, options) {
+    if (options && options.session && options.session.inTransaction()) {
+        return;
+    }
+    const readConcern = Object.assign({}, command.readConcern || {});
+    if (coll.s.readConcern) {
+        Object.assign(readConcern, coll.s.readConcern);
+    }
+    if (Object.keys(readConcern).length > 0) {
+        Object.assign(command, { readConcern: readConcern });
+    }
+}
+/**
+ * A helper function to get the topology from a given provider. Throws
+ * if the topology cannot be found.
+ * @throws MongoNotConnectedError
+ * @internal
+ */
+function getTopology(provider) {
+    // MongoClient or ClientSession or AbstractCursor
+    if ('topology' in provider && provider.topology) {
+        return provider.topology;
+    }
+    else if ('client' in provider && provider.client.topology) {
+        return provider.client.topology;
+    }
+    throw new error_1.MongoNotConnectedError('MongoClient must be connected to perform this operation');
+}
+/** @internal */
+function ns(ns) {
+    return MongoDBNamespace.fromString(ns);
+}
+/** @public */
+class MongoDBNamespace {
+    /**
+     * Create a namespace object
+     *
+     * @param db - database name
+     * @param collection - collection name
+     */
+    constructor(db, collection) {
+        this.db = db;
+        this.collection = collection;
+        this.collection = collection === '' ? undefined : collection;
+    }
+    toString() {
+        return this.collection ? `${this.db}.${this.collection}` : this.db;
+    }
+    withCollection(collection) {
+        return new MongoDBCollectionNamespace(this.db, collection);
+    }
+    static fromString(namespace) {
+        if (typeof namespace !== 'string' || namespace === '') {
+            // TODO(NODE-3483): Replace with MongoNamespaceError
+            throw new error_1.MongoRuntimeError(`Cannot parse namespace from "${namespace}"`);
+        }
+        const [db, ...collectionParts] = namespace.split('.');
+        const collection = collectionParts.join('.');
+        return new MongoDBNamespace(db, collection === '' ? undefined : collection);
+    }
+}
+exports.MongoDBNamespace = MongoDBNamespace;
+/**
+ * @public
+ *
+ * A class representing a collection's namespace.  This class enforces (through Typescript) that
+ * the `collection` portion of the namespace is defined and should only be
+ * used in scenarios where this can be guaranteed.
+ */
+class MongoDBCollectionNamespace extends MongoDBNamespace {
+    constructor(db, collection) {
+        super(db, collection);
+        this.collection = collection;
+    }
+    static fromString(namespace) {
+        return super.fromString(namespace);
+    }
+}
+exports.MongoDBCollectionNamespace = MongoDBCollectionNamespace;
+/** @internal */
+function* makeCounter(seed = 0) {
+    let count = seed;
+    while (true) {
+        const newCount = count;
+        count += 1;
+        yield newCount;
+    }
+}
+/**
+ * Synchronously Generate a UUIDv4
+ * @internal
+ */
+function uuidV4() {
+    const result = crypto.randomBytes(16);
+    result[6] = (result[6] & 0x0f) | 0x40;
+    result[8] = (result[8] & 0x3f) | 0x80;
+    return result;
+}
+/**
+ * A helper function for determining `maxWireVersion` between legacy and new topology instances
+ * @internal
+ */
+function maxWireVersion(topologyOrServer) {
+    if (topologyOrServer) {
+        if (topologyOrServer.loadBalanced || topologyOrServer.serverApi?.version) {
+            // Since we do not have a monitor in the load balanced mode,
+            // we assume the load-balanced server is always pointed at the latest mongodb version.
+            // There is a risk that for on-prem deployments
+            // that don't upgrade immediately that this could alert to the
+            // application that a feature is available that is actually not.
+            // We also return the max supported wire version for serverAPI.
+            return constants_1.MAX_SUPPORTED_WIRE_VERSION;
+        }
+        if (topologyOrServer.hello) {
+            return topologyOrServer.hello.maxWireVersion;
+        }
+        if ('lastHello' in topologyOrServer && typeof topologyOrServer.lastHello === 'function') {
+            const lastHello = topologyOrServer.lastHello();
+            if (lastHello) {
+                return lastHello.maxWireVersion;
+            }
+        }
+        if (topologyOrServer.description &&
+            'maxWireVersion' in topologyOrServer.description &&
+            topologyOrServer.description.maxWireVersion != null) {
+            return topologyOrServer.description.maxWireVersion;
+        }
+    }
+    return 0;
+}
+/** @internal */
+function arrayStrictEqual(arr, arr2) {
+    if (!Array.isArray(arr) || !Array.isArray(arr2)) {
+        return false;
+    }
+    return arr.length === arr2.length && arr.every((elt, idx) => elt === arr2[idx]);
+}
+/** @internal */
+function errorStrictEqual(lhs, rhs) {
+    if (lhs === rhs) {
+        return true;
+    }
+    if (!lhs || !rhs) {
+        return lhs === rhs;
+    }
+    if ((lhs == null && rhs != null) || (lhs != null && rhs == null)) {
+        return false;
+    }
+    if (lhs.constructor.name !== rhs.constructor.name) {
+        return false;
+    }
+    if (lhs.message !== rhs.message) {
+        return false;
+    }
+    return true;
+}
+/** @internal */
+function makeStateMachine(stateTable) {
+    return function stateTransition(target, newState) {
+        const legalStates = stateTable[target.s.state];
+        if (legalStates && legalStates.indexOf(newState) < 0) {
+            throw new error_1.MongoRuntimeError(`illegal state transition from [${target.s.state}] => [${newState}], allowed: [${legalStates}]`);
+        }
+        target.emit('stateChanged', target.s.state, newState);
+        target.s.state = newState;
+    };
+}
+/** @internal */
+function now() {
+    const hrtime = process.hrtime();
+    return Math.floor(hrtime[0] * 1000 + hrtime[1] / 1000000);
+}
+/** @internal */
+function calculateDurationInMs(started) {
+    if (typeof started !== 'number') {
+        return -1;
+    }
+    const elapsed = now() - started;
+    return elapsed < 0 ? 0 : elapsed;
+}
+/** @internal */
+function hasAtomicOperators(doc) {
+    if (Array.isArray(doc)) {
+        for (const document of doc) {
+            if (hasAtomicOperators(document)) {
+                return true;
+            }
+        }
+        return false;
+    }
+    const keys = Object.keys(doc);
+    return keys.length > 0 && keys[0][0] === '$';
+}
+function resolveTimeoutOptions(client, options) {
+    const { socketTimeoutMS, serverSelectionTimeoutMS, waitQueueTimeoutMS, timeoutMS } = client.s.options;
+    return { socketTimeoutMS, serverSelectionTimeoutMS, waitQueueTimeoutMS, timeoutMS, ...options };
+}
+/**
+ * Merge inherited properties from parent into options, prioritizing values from options,
+ * then values from parent.
+ *
+ * @param parent - An optional owning class of the operation being run. ex. Db/Collection/MongoClient.
+ * @param options - The options passed to the operation method.
+ *
+ * @internal
+ */
+function resolveOptions(parent, options) {
+    const result = Object.assign({}, options, (0, bson_1.resolveBSONOptions)(options, parent));
+    const timeoutMS = options?.timeoutMS ?? parent?.timeoutMS;
+    // Users cannot pass a readConcern/writeConcern to operations in a transaction
+    const session = options?.session;
+    if (!session?.inTransaction()) {
+        const readConcern = read_concern_1.ReadConcern.fromOptions(options) ?? parent?.readConcern;
+        if (readConcern) {
+            result.readConcern = readConcern;
+        }
+        let writeConcern = write_concern_1.WriteConcern.fromOptions(options) ?? parent?.writeConcern;
+        if (writeConcern) {
+            if (timeoutMS != null) {
+                writeConcern = write_concern_1.WriteConcern.fromOptions({
+                    ...writeConcern,
+                    wtimeout: undefined,
+                    wtimeoutMS: undefined
+                });
+            }
+            result.writeConcern = writeConcern;
+        }
+    }
+    result.timeoutMS = timeoutMS;
+    const readPreference = read_preference_1.ReadPreference.fromOptions(options) ?? parent?.readPreference;
+    if (readPreference) {
+        result.readPreference = readPreference;
+    }
+    const isConvenientTransaction = session?.explicit && session?.timeoutContext != null;
+    if (isConvenientTransaction && options?.timeoutMS != null) {
+        throw new error_1.MongoInvalidArgumentError('An operation cannot be given a timeoutMS setting when inside a withTransaction call that has a timeoutMS setting');
+    }
+    return result;
+}
+function isSuperset(set, subset) {
+    set = Array.isArray(set) ? new Set(set) : set;
+    subset = Array.isArray(subset) ? new Set(subset) : subset;
+    for (const elem of subset) {
+        if (!set.has(elem)) {
+            return false;
+        }
+    }
+    return true;
+}
+/**
+ * Checks if the document is a Hello request
+ * @internal
+ */
+function isHello(doc) {
+    return doc[constants_2.LEGACY_HELLO_COMMAND] || doc.hello ? true : false;
+}
+/** Returns the items that are uniquely in setA */
+function setDifference(setA, setB) {
+    const difference = new Set(setA);
+    for (const elem of setB) {
+        difference.delete(elem);
+    }
+    return difference;
+}
+const HAS_OWN = (object, prop) => Object.prototype.hasOwnProperty.call(object, prop);
+function isRecord(value, requiredKeys = undefined) {
+    if (!isObject(value)) {
+        return false;
+    }
+    const ctor = value.constructor;
+    if (ctor && ctor.prototype) {
+        if (!isObject(ctor.prototype)) {
+            return false;
+        }
+        // Check to see if some method exists from the Object exists
+        if (!HAS_OWN(ctor.prototype, 'isPrototypeOf')) {
+            return false;
+        }
+    }
+    if (requiredKeys) {
+        const keys = Object.keys(value);
+        return isSuperset(keys, requiredKeys);
+    }
+    return true;
+}
+/**
+ * Make a deep copy of an object
+ *
+ * NOTE: This is not meant to be the perfect implementation of a deep copy,
+ * but instead something that is good enough for the purposes of
+ * command monitoring.
+ */
+function deepCopy(value) {
+    if (value == null) {
+        return value;
+    }
+    else if (Array.isArray(value)) {
+        return value.map(item => deepCopy(item));
+    }
+    else if (isRecord(value)) {
+        const res = {};
+        for (const key in value) {
+            res[key] = deepCopy(value[key]);
+        }
+        return res;
+    }
+    const ctor = value.constructor;
+    if (ctor) {
+        switch (ctor.name.toLowerCase()) {
+            case 'date':
+                return new ctor(Number(value));
+            case 'map':
+                return new Map(value);
+            case 'set':
+                return new Set(value);
+            case 'buffer':
+                return Buffer.from(value);
+        }
+    }
+    return value;
+}
+/**
+ * A sequential list of items in a circularly linked list
+ * @remarks
+ * The head node is special, it is always defined and has a value of null.
+ * It is never "included" in the list, in that, it is not returned by pop/shift or yielded by the iterator.
+ * The circular linkage and always defined head node are to reduce checks for null next/prev references to zero.
+ * New nodes are declared as object literals with keys always in the same order: next, prev, value.
+ * @internal
+ */
+class List {
+    get length() {
+        return this.count;
+    }
+    get [Symbol.toStringTag]() {
+        return 'List';
+    }
+    constructor() {
+        this.count = 0;
+        // this is carefully crafted:
+        // declaring a complete and consistently key ordered
+        // object is beneficial to the runtime optimizations
+        this.head = {
+            next: null,
+            prev: null,
+            value: null
+        };
+        this.head.next = this.head;
+        this.head.prev = this.head;
+    }
+    toArray() {
+        return Array.from(this);
+    }
+    toString() {
+        return `head <=> ${this.toArray().join(' <=> ')} <=> head`;
+    }
+    *[Symbol.iterator]() {
+        for (const node of this.nodes()) {
+            yield node.value;
+        }
+    }
+    *nodes() {
+        let ptr = this.head.next;
+        while (ptr !== this.head) {
+            // Save next before yielding so that we make removing within iteration safe
+            const { next } = ptr;
+            yield ptr;
+            ptr = next;
+        }
+    }
+    /** Insert at end of list */
+    push(value) {
+        this.count += 1;
+        const newNode = {
+            next: this.head,
+            prev: this.head.prev,
+            value
+        };
+        this.head.prev.next = newNode;
+        this.head.prev = newNode;
+    }
+    /** Inserts every item inside an iterable instead of the iterable itself */
+    pushMany(iterable) {
+        for (const value of iterable) {
+            this.push(value);
+        }
+    }
+    /** Insert at front of list */
+    unshift(value) {
+        this.count += 1;
+        const newNode = {
+            next: this.head.next,
+            prev: this.head,
+            value
+        };
+        this.head.next.prev = newNode;
+        this.head.next = newNode;
+    }
+    remove(node) {
+        if (node === this.head || this.length === 0) {
+            return null;
+        }
+        this.count -= 1;
+        const prevNode = node.prev;
+        const nextNode = node.next;
+        prevNode.next = nextNode;
+        nextNode.prev = prevNode;
+        return node.value;
+    }
+    /** Removes the first node at the front of the list */
+    shift() {
+        return this.remove(this.head.next);
+    }
+    /** Removes the last node at the end of the list */
+    pop() {
+        return this.remove(this.head.prev);
+    }
+    /** Iterates through the list and removes nodes where filter returns true */
+    prune(filter) {
+        for (const node of this.nodes()) {
+            if (filter(node.value)) {
+                this.remove(node);
+            }
+        }
+    }
+    clear() {
+        this.count = 0;
+        this.head.next = this.head;
+        this.head.prev = this.head;
+    }
+    /** Returns the first item in the list, does not remove */
+    first() {
+        // If the list is empty, value will be the head's null
+        return this.head.next.value;
+    }
+    /** Returns the last item in the list, does not remove */
+    last() {
+        // If the list is empty, value will be the head's null
+        return this.head.prev.value;
+    }
+}
+exports.List = List;
+/**
+ * A pool of Buffers which allow you to read them as if they were one
+ * @internal
+ */
+class BufferPool {
+    constructor() {
+        this.buffers = new List();
+        this.totalByteLength = 0;
+    }
+    get length() {
+        return this.totalByteLength;
+    }
+    /** Adds a buffer to the internal buffer pool list */
+    append(buffer) {
+        this.buffers.push(buffer);
+        this.totalByteLength += buffer.length;
+    }
+    /**
+     * If BufferPool contains 4 bytes or more construct an int32 from the leading bytes,
+     * otherwise return null. Size can be negative, caller should error check.
+     */
+    getInt32() {
+        if (this.totalByteLength < 4) {
+            return null;
+        }
+        const firstBuffer = this.buffers.first();
+        if (firstBuffer != null && firstBuffer.byteLength >= 4) {
+            return firstBuffer.readInt32LE(0);
+        }
+        // Unlikely case: an int32 is split across buffers.
+        // Use read and put the returned buffer back on top
+        const top4Bytes = this.read(4);
+        const value = top4Bytes.readInt32LE(0);
+        // Put it back.
+        this.totalByteLength += 4;
+        this.buffers.unshift(top4Bytes);
+        return value;
+    }
+    /** Reads the requested number of bytes, optionally consuming them */
+    read(size) {
+        if (typeof size !== 'number' || size < 0) {
+            throw new error_1.MongoInvalidArgumentError('Argument "size" must be a non-negative number');
+        }
+        // oversized request returns empty buffer
+        if (size > this.totalByteLength) {
+            return Buffer.alloc(0);
+        }
+        // We know we have enough, we just don't know how it is spread across chunks
+        // TODO(NODE-4732): alloc API should change based on raw option
+        const result = Buffer.allocUnsafe(size);
+        for (let bytesRead = 0; bytesRead < size;) {
+            const buffer = this.buffers.shift();
+            if (buffer == null) {
+                break;
+            }
+            const bytesRemaining = size - bytesRead;
+            const bytesReadable = Math.min(bytesRemaining, buffer.byteLength);
+            const bytes = buffer.subarray(0, bytesReadable);
+            result.set(bytes, bytesRead);
+            bytesRead += bytesReadable;
+            this.totalByteLength -= bytesReadable;
+            if (bytesReadable < buffer.byteLength) {
+                this.buffers.unshift(buffer.subarray(bytesReadable));
+            }
+        }
+        return result;
+    }
+}
+exports.BufferPool = BufferPool;
+/** @public */
+class HostAddress {
+    constructor(hostString) {
+        this.host = undefined;
+        this.port = undefined;
+        this.socketPath = undefined;
+        this.isIPv6 = false;
+        const escapedHost = hostString.split(' ').join('%20'); // escape spaces, for socket path hosts
+        if (escapedHost.endsWith('.sock')) {
+            // heuristically determine if we're working with a domain socket
+            this.socketPath = decodeURIComponent(escapedHost);
+            return;
+        }
+        const urlString = `iLoveJS://${escapedHost}`;
+        let url;
+        try {
+            url = new url_1.URL(urlString);
+        }
+        catch (urlError) {
+            const runtimeError = new error_1.MongoRuntimeError(`Unable to parse ${escapedHost} with URL`);
+            runtimeError.cause = urlError;
+            throw runtimeError;
+        }
+        const hostname = url.hostname;
+        const port = url.port;
+        let normalized = decodeURIComponent(hostname).toLowerCase();
+        if (normalized.startsWith('[') && normalized.endsWith(']')) {
+            this.isIPv6 = true;
+            normalized = normalized.substring(1, hostname.length - 1);
+        }
+        this.host = normalized.toLowerCase();
+        if (typeof port === 'number') {
+            this.port = port;
+        }
+        else if (typeof port === 'string' && port !== '') {
+            this.port = Number.parseInt(port, 10);
+        }
+        else {
+            this.port = 27017;
+        }
+        if (this.port === 0) {
+            throw new error_1.MongoParseError('Invalid port (zero) with hostname');
+        }
+        Object.freeze(this);
+    }
+    [Symbol.for('nodejs.util.inspect.custom')]() {
+        return this.inspect();
+    }
+    inspect() {
+        return `new HostAddress('${this.toString()}')`;
+    }
+    toString() {
+        if (typeof this.host === 'string') {
+            if (this.isIPv6) {
+                return `[${this.host}]:${this.port}`;
+            }
+            return `${this.host}:${this.port}`;
+        }
+        return `${this.socketPath}`;
+    }
+    static fromString(s) {
+        return new HostAddress(s);
+    }
+    static fromHostPort(host, port) {
+        if (host.includes(':')) {
+            host = `[${host}]`; // IPv6 address
+        }
+        return HostAddress.fromString(`${host}:${port}`);
+    }
+    static fromSrvRecord({ name, port }) {
+        return HostAddress.fromHostPort(name, port);
+    }
+    toHostPort() {
+        if (this.socketPath) {
+            return { host: this.socketPath, port: 0 };
+        }
+        const host = this.host ?? '';
+        const port = this.port ?? 0;
+        return { host, port };
+    }
+}
+exports.HostAddress = HostAddress;
+exports.DEFAULT_PK_FACTORY = {
+    // We prefer not to rely on ObjectId having a createPk method
+    createPk() {
+        return new bson_1.ObjectId();
+    }
+};
+/**
+ * When the driver used emitWarning the code will be equal to this.
+ * @public
+ *
+ * @example
+ * ```ts
+ * process.on('warning', (warning) => {
+ *  if (warning.code === MONGODB_WARNING_CODE) console.error('Ah an important warning! :)')
+ * })
+ * ```
+ */
+exports.MONGODB_WARNING_CODE = 'MONGODB DRIVER';
+/** @internal */
+function emitWarning(message) {
+    return process.emitWarning(message, { code: exports.MONGODB_WARNING_CODE });
+}
+const emittedWarnings = new Set();
+/**
+ * Will emit a warning once for the duration of the application.
+ * Uses the message to identify if it has already been emitted
+ * so using string interpolation can cause multiple emits
+ * @internal
+ */
+function emitWarningOnce(message) {
+    if (!emittedWarnings.has(message)) {
+        emittedWarnings.add(message);
+        return emitWarning(message);
+    }
+}
+/**
+ * Takes a JS object and joins the values into a string separated by ', '
+ */
+function enumToString(en) {
+    return Object.values(en).join(', ');
+}
+/**
+ * Determine if a server supports retryable writes.
+ *
+ * @internal
+ */
+function supportsRetryableWrites(server) {
+    if (!server) {
+        return false;
+    }
+    if (server.loadBalanced) {
+        // Loadbalanced topologies will always support retry writes
+        return true;
+    }
+    if (server.description.logicalSessionTimeoutMinutes != null) {
+        // that supports sessions
+        if (server.description.type !== common_1.ServerType.Standalone) {
+            // and that is not a standalone
+            return true;
+        }
+    }
+    return false;
+}
+/**
+ * Fisher–Yates Shuffle
+ *
+ * Reference: https://bost.ocks.org/mike/shuffle/
+ * @param sequence - items to be shuffled
+ * @param limit - Defaults to `0`. If nonzero shuffle will slice the randomized array e.g, `.slice(0, limit)` otherwise will return the entire randomized array.
+ */
+function shuffle(sequence, limit = 0) {
+    const items = Array.from(sequence); // shallow copy in order to never shuffle the input
+    if (limit > items.length) {
+        throw new error_1.MongoRuntimeError('Limit must be less than the number of items');
+    }
+    let remainingItemsToShuffle = items.length;
+    const lowerBound = limit % items.length === 0 ? 1 : items.length - limit;
+    while (remainingItemsToShuffle > lowerBound) {
+        // Pick a remaining element
+        const randomIndex = Math.floor(Math.random() * remainingItemsToShuffle);
+        remainingItemsToShuffle -= 1;
+        // And swap it with the current element
+        const swapHold = items[remainingItemsToShuffle];
+        items[remainingItemsToShuffle] = items[randomIndex];
+        items[randomIndex] = swapHold;
+    }
+    return limit % items.length === 0 ? items : items.slice(lowerBound);
+}
+/**
+ * TODO(NODE-4936): read concern eligibility for commands should be codified in command construction
+ * @internal
+ * @see https://github.com/mongodb/specifications/blob/master/source/read-write-concern/read-write-concern.md#read-concern
+ */
+function commandSupportsReadConcern(command) {
+    if (command.aggregate || command.count || command.distinct || command.find || command.geoNear) {
+        return true;
+    }
+    return false;
+}
+/**
+ * Compare objectIds. `null` is always less
+ * - `+1 = oid1 is greater than oid2`
+ * - `-1 = oid1 is less than oid2`
+ * - `+0 = oid1 is equal oid2`
+ */
+function compareObjectId(oid1, oid2) {
+    if (oid1 == null && oid2 == null) {
+        return 0;
+    }
+    if (oid1 == null) {
+        return -1;
+    }
+    if (oid2 == null) {
+        return 1;
+    }
+    return exports.ByteUtils.compare(oid1.id, oid2.id);
+}
+function parseInteger(value) {
+    if (typeof value === 'number')
+        return Math.trunc(value);
+    const parsedValue = Number.parseInt(String(value), 10);
+    return Number.isNaN(parsedValue) ? null : parsedValue;
+}
+function parseUnsignedInteger(value) {
+    const parsedInt = parseInteger(value);
+    return parsedInt != null && parsedInt >= 0 ? parsedInt : null;
+}
+/**
+ * This function throws a MongoAPIError in the event that either of the following is true:
+ * * If the provided address domain does not match the provided parent domain
+ * * If the parent domain contains less than three `.` separated parts and the provided address does not contain at least one more domain level than its parent
+ *
+ * If a DNS server were to become compromised SRV records would still need to
+ * advertise addresses that are under the same domain as the srvHost.
+ *
+ * @param address - The address to check against a domain
+ * @param srvHost - The domain to check the provided address against
+ * @returns void
+ */
+function checkParentDomainMatch(address, srvHost) {
+    // Remove trailing dot if exists on either the resolved address or the srv hostname
+    const normalizedAddress = address.endsWith('.') ? address.slice(0, address.length - 1) : address;
+    const normalizedSrvHost = srvHost.endsWith('.') ? srvHost.slice(0, srvHost.length - 1) : srvHost;
+    const allCharacterBeforeFirstDot = /^.*?\./;
+    const srvIsLessThanThreeParts = normalizedSrvHost.split('.').length < 3;
+    // Remove all characters before first dot
+    // Add leading dot back to string so
+    //   an srvHostDomain = '.trusted.site'
+    //   will not satisfy an addressDomain that endsWith '.fake-trusted.site'
+    const addressDomain = `.${normalizedAddress.replace(allCharacterBeforeFirstDot, '')}`;
+    let srvHostDomain = srvIsLessThanThreeParts
+        ? normalizedSrvHost
+        : `.${normalizedSrvHost.replace(allCharacterBeforeFirstDot, '')}`;
+    if (!srvHostDomain.startsWith('.')) {
+        srvHostDomain = '.' + srvHostDomain;
+    }
+    if (srvIsLessThanThreeParts &&
+        normalizedAddress.split('.').length <= normalizedSrvHost.split('.').length) {
+        throw new error_1.MongoAPIError('Server record does not have at least one more domain level than parent URI');
+    }
+    if (!addressDomain.endsWith(srvHostDomain)) {
+        throw new error_1.MongoAPIError('Server record does not share hostname with parent URI');
+    }
+}
+/**
+ * Perform a get request that returns status and body.
+ * @internal
+ */
+function get(url, options = {}) {
+    return new Promise((resolve, reject) => {
+        /* eslint-disable prefer-const */
+        let timeoutId;
+        const request = http
+            .get(url, options, response => {
+            response.setEncoding('utf8');
+            let body = '';
+            response.on('data', chunk => (body += chunk));
+            response.on('end', () => {
+                (0, timers_1.clearTimeout)(timeoutId);
+                resolve({ status: response.statusCode, body });
+            });
+        })
+            .on('error', error => {
+            (0, timers_1.clearTimeout)(timeoutId);
+            reject(error);
+        })
+            .end();
+        timeoutId = (0, timers_1.setTimeout)(() => {
+            request.destroy(new error_1.MongoNetworkTimeoutError(`request timed out after 10 seconds`));
+        }, 10000);
+    });
+}
+async function request(uri, options = {}) {
+    return await new Promise((resolve, reject) => {
+        const requestOptions = {
+            method: 'GET',
+            timeout: 10000,
+            json: true,
+            ...url.parse(uri),
+            ...options
+        };
+        const req = http.request(requestOptions, res => {
+            res.setEncoding('utf8');
+            let data = '';
+            res.on('data', d => {
+                data += d;
+            });
+            res.once('end', () => {
+                if (options.json === false) {
+                    resolve(data);
+                    return;
+                }
+                try {
+                    const parsed = JSON.parse(data);
+                    resolve(parsed);
+                }
+                catch {
+                    // TODO(NODE-3483)
+                    reject(new error_1.MongoRuntimeError(`Invalid JSON response: "${data}"`));
+                }
+            });
+        });
+        req.once('timeout', () => req.destroy(new error_1.MongoNetworkTimeoutError(`Network request to ${uri} timed out after ${options.timeout} ms`)));
+        req.once('error', error => reject(error));
+        req.end();
+    });
+}
+/** @internal */
+exports.DOCUMENT_DB_CHECK = /(\.docdb\.amazonaws\.com$)|(\.docdb-elastic\.amazonaws\.com$)/;
+/** @internal */
+exports.COSMOS_DB_CHECK = /\.cosmos\.azure\.com$/;
+/** @internal */
+exports.DOCUMENT_DB_MSG = 'You appear to be connected to a DocumentDB cluster. For more information regarding feature compatibility and support please visit https://www.mongodb.com/supportability/documentdb';
+/** @internal */
+exports.COSMOS_DB_MSG = 'You appear to be connected to a CosmosDB cluster. For more information regarding feature compatibility and support please visit https://www.mongodb.com/supportability/cosmosdb';
+/** @internal */
+function isHostMatch(match, host) {
+    return host && match.test(host.toLowerCase()) ? true : false;
+}
+function promiseWithResolvers() {
+    let resolve;
+    let reject;
+    const promise = new Promise(function withResolversExecutor(promiseResolve, promiseReject) {
+        resolve = promiseResolve;
+        reject = promiseReject;
+    });
+    return { promise, resolve, reject };
+}
+/**
+ * A noop function intended for use in preventing unhandled rejections.
+ *
+ * @example
+ * ```js
+ * const promise = myAsyncTask();
+ * // eslint-disable-next-line github/no-then
+ * promise.then(undefined, squashError);
+ * ```
+ */
+function squashError(_error) {
+    return;
+}
+exports.randomBytes = (0, util_1.promisify)(crypto.randomBytes);
+/**
+ * Replicates the events.once helper.
+ *
+ * Removes unused signal logic and It **only** supports 0 or 1 argument events.
+ *
+ * @param ee - An event emitter that may emit `ev`
+ * @param name - An event name to wait for
+ */
+async function once(ee, name) {
+    const { promise, resolve, reject } = promiseWithResolvers();
+    const onEvent = (data) => resolve(data);
+    const onError = (error) => reject(error);
+    ee.once(name, onEvent).once('error', onError);
+    try {
+        const res = await promise;
+        ee.off('error', onError);
+        return res;
+    }
+    catch (error) {
+        ee.off(name, onEvent);
+        throw error;
+    }
+}
+function maybeAddIdToDocuments(coll, docOrDocs, options) {
+    const forceServerObjectId = typeof options.forceServerObjectId === 'boolean'
+        ? options.forceServerObjectId
+        : coll.s.db.options?.forceServerObjectId;
+    // no need to modify the docs if server sets the ObjectId
+    if (forceServerObjectId === true) {
+        return docOrDocs;
+    }
+    const transform = (doc) => {
+        if (doc._id == null) {
+            doc._id = coll.s.pkFactory.createPk();
+        }
+        return doc;
+    };
+    return Array.isArray(docOrDocs) ? docOrDocs.map(transform) : transform(docOrDocs);
+}
+async function fileIsAccessible(fileName, mode) {
+    try {
+        await fs_1.promises.access(fileName, mode);
+        return true;
+    }
+    catch {
+        return false;
+    }
+}
+function csotMin(duration1, duration2) {
+    if (duration1 === 0)
+        return duration2;
+    if (duration2 === 0)
+        return duration1;
+    return Math.min(duration1, duration2);
+}
+function noop() {
+    return;
+}
+/**
+ * Recurse through the (identically-shaped) `decrypted` and `original`
+ * objects and attach a `decryptedKeys` property on each sub-object that
+ * contained encrypted fields. Because we only call this on BSON responses,
+ * we do not need to worry about circular references.
+ *
+ * @internal
+ */
+function decorateDecryptionResult(decrypted, original, isTopLevelDecorateCall = true) {
+    if (isTopLevelDecorateCall) {
+        // The original value could have been either a JS object or a BSON buffer
+        if (Buffer.isBuffer(original)) {
+            original = (0, bson_1.deserialize)(original);
+        }
+        if (Buffer.isBuffer(decrypted)) {
+            throw new error_1.MongoRuntimeError('Expected result of decryption to be deserialized BSON object');
+        }
+    }
+    if (!decrypted || typeof decrypted !== 'object')
+        return;
+    for (const k of Object.keys(decrypted)) {
+        const originalValue = original[k];
+        // An object was decrypted by libmongocrypt if and only if it was
+        // a BSON Binary object with subtype 6.
+        if (originalValue && originalValue._bsontype === 'Binary' && originalValue.sub_type === 6) {
+            if (!decrypted[constants_2.kDecoratedKeys]) {
+                Object.defineProperty(decrypted, constants_2.kDecoratedKeys, {
+                    value: [],
+                    configurable: true,
+                    enumerable: false,
+                    writable: false
+                });
+            }
+            // this is defined in the preceding if-statement
+            // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+            decrypted[constants_2.kDecoratedKeys].push(k);
+            // Do not recurse into this decrypted value. It could be a sub-document/array,
+            // in which case there is no original value associated with its subfields.
+            continue;
+        }
+        decorateDecryptionResult(decrypted[k], originalValue, false);
+    }
+}
+//# sourceMappingURL=utils.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/utils.js.map b/backend/node_modules/mongodb/lib/utils.js.map
new file mode 100644
index 0000000..700420f
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/utils.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/write_concern.js b/backend/node_modules/mongodb/lib/write_concern.js
new file mode 100644
index 0000000..b202247
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/write_concern.js
@@ -0,0 +1,102 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.WriteConcern = exports.WRITE_CONCERN_KEYS = void 0;
+exports.throwIfWriteConcernError = throwIfWriteConcernError;
+const responses_1 = require("./cmap/wire_protocol/responses");
+const error_1 = require("./error");
+exports.WRITE_CONCERN_KEYS = ['w', 'wtimeout', 'j', 'journal', 'fsync'];
+/**
+ * A MongoDB WriteConcern, which describes the level of acknowledgement
+ * requested from MongoDB for write operations.
+ * @public
+ *
+ * @see https://www.mongodb.com/docs/manual/reference/write-concern/
+ */
+class WriteConcern {
+    /**
+     * Constructs a WriteConcern from the write concern properties.
+     * @param w - request acknowledgment that the write operation has propagated to a specified number of mongod instances or to mongod instances with specified tags.
+     * @param wtimeoutMS - specify a time limit to prevent write operations from blocking indefinitely
+     * @param journal - request acknowledgment that the write operation has been written to the on-disk journal
+     * @param fsync - equivalent to the j option. Is deprecated and will be removed in the next major version.
+     */
+    constructor(w, wtimeoutMS, journal, fsync) {
+        if (w != null) {
+            if (!Number.isNaN(Number(w))) {
+                this.w = Number(w);
+            }
+            else {
+                this.w = w;
+            }
+        }
+        if (wtimeoutMS != null) {
+            this.wtimeoutMS = this.wtimeout = wtimeoutMS;
+        }
+        if (journal != null) {
+            this.journal = this.j = journal;
+        }
+        if (fsync != null) {
+            this.journal = this.j = fsync ? true : false;
+        }
+    }
+    /**
+     * Apply a write concern to a command document. Will modify and return the command.
+     */
+    static apply(command, writeConcern) {
+        const wc = {};
+        // The write concern document sent to the server has w/wtimeout/j fields.
+        if (writeConcern.w != null)
+            wc.w = writeConcern.w;
+        if (writeConcern.wtimeoutMS != null)
+            wc.wtimeout = writeConcern.wtimeoutMS;
+        if (writeConcern.journal != null)
+            wc.j = writeConcern.j;
+        command.writeConcern = wc;
+        return command;
+    }
+    /** Construct a WriteConcern given an options object. */
+    static fromOptions(options, inherit) {
+        if (options == null)
+            return undefined;
+        inherit = inherit ?? {};
+        let opts;
+        if (typeof options === 'string' || typeof options === 'number') {
+            opts = { w: options };
+        }
+        else if (options instanceof WriteConcern) {
+            opts = options;
+        }
+        else {
+            opts = options.writeConcern;
+        }
+        const parentOpts = inherit instanceof WriteConcern ? inherit : inherit.writeConcern;
+        const { w = undefined, wtimeout = undefined, j = undefined, fsync = undefined, journal = undefined, wtimeoutMS = undefined } = {
+            ...parentOpts,
+            ...opts
+        };
+        if (w != null ||
+            wtimeout != null ||
+            wtimeoutMS != null ||
+            j != null ||
+            journal != null ||
+            fsync != null) {
+            return new WriteConcern(w, wtimeout ?? wtimeoutMS, j ?? journal, fsync);
+        }
+        return undefined;
+    }
+}
+exports.WriteConcern = WriteConcern;
+/** Called with either a plain object or MongoDBResponse */
+function throwIfWriteConcernError(response) {
+    if (typeof response === 'object' && response != null) {
+        const writeConcernError = responses_1.MongoDBResponse.is(response) && response.has('writeConcernError')
+            ? response.toObject()
+            : !responses_1.MongoDBResponse.is(response) && 'writeConcernError' in response
+                ? response
+                : null;
+        if (writeConcernError != null) {
+            throw new error_1.MongoWriteConcernError(writeConcernError);
+        }
+    }
+}
+//# sourceMappingURL=write_concern.js.map
\ No newline at end of file
diff --git a/backend/node_modules/mongodb/lib/write_concern.js.map b/backend/node_modules/mongodb/lib/write_concern.js.map
new file mode 100644
index 0000000..d6c29ab
--- /dev/null
+++ b/backend/node_modules/mongodb/lib/write_concern.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/mongodb/mongodb.d.ts b/backend/node_modules/mongodb/mongodb.d.ts
new file mode 100644
index 0000000..1a4b68d
--- /dev/null
+++ b/backend/node_modules/mongodb/mongodb.d.ts
@@ -0,0 +1,8797 @@
+import type { DeserializeOptions } from 'bson';
+import type { ObjectIdLike } from 'bson';
+import type { SerializeOptions } from 'bson';
+import { Binary } from 'bson';
+import { BSON } from 'bson';
+import { BSONRegExp } from 'bson';
+import { BSONSymbol } from 'bson';
+import { BSONType } from 'bson';
+import { Code } from 'bson';
+import { DBRef } from 'bson';
+import { Decimal128 } from 'bson';
+import { deserialize } from 'bson';
+import { Document } from 'bson';
+import { Double } from 'bson';
+import { Int32 } from 'bson';
+import { Long } from 'bson';
+import { MaxKey } from 'bson';
+import { MinKey } from 'bson';
+import { ObjectId } from 'bson';
+import { serialize } from 'bson';
+import { Timestamp } from 'bson';
+import { UUID } from 'bson';
+import type { SrvRecord } from 'dns';
+import { EventEmitter } from 'events';
+import type { Socket } from 'net';
+import type { TcpNetConnectOpts } from 'net';
+import { Readable } from 'stream';
+import { Writable } from 'stream';
+import type { ConnectionOptions as ConnectionOptions_2 } from 'tls';
+import type { TLSSocket } from 'tls';
+import type { TLSSocketOptions } from 'tls';
+
+/** @public */
+export declare abstract class AbstractCursor<TSchema = any, CursorEvents extends AbstractCursorEvents = AbstractCursorEvents> extends TypedEventEmitter<CursorEvents> implements AsyncDisposable_2 {
+    /* Excluded from this release type: cursorId */
+    /* Excluded from this release type: cursorSession */
+    /* Excluded from this release type: selectedServer */
+    /* Excluded from this release type: cursorNamespace */
+    /* Excluded from this release type: documents */
+    /* Excluded from this release type: cursorClient */
+    /* Excluded from this release type: transform */
+    /* Excluded from this release type: initialized */
+    /* Excluded from this release type: isClosed */
+    /* Excluded from this release type: isKilled */
+    /* Excluded from this release type: cursorOptions */
+    /* Excluded from this release type: timeoutContext */
+    /** @event */
+    static readonly CLOSE: "close";
+    /* Excluded from this release type: deserializationOptions */
+    /* Excluded from this release type: __constructor */
+    /**
+     * The cursor has no id until it receives a response from the initial cursor creating command.
+     *
+     * It is non-zero for as long as the database has an open cursor.
+     *
+     * The initiating command may receive a zero id if the entire result is in the `firstBatch`.
+     */
+    get id(): Long | undefined;
+    /* Excluded from this release type: isDead */
+    /* Excluded from this release type: client */
+    /* Excluded from this release type: server */
+    get namespace(): MongoDBNamespace;
+    get readPreference(): ReadPreference;
+    get readConcern(): ReadConcern | undefined;
+    /* Excluded from this release type: session */
+    /* Excluded from this release type: session */
+    /**
+     * The cursor is closed and all remaining locally buffered documents have been iterated.
+     */
+    get closed(): boolean;
+    /**
+     * A `killCursors` command was attempted on this cursor.
+     * This is performed if the cursor id is non zero.
+     */
+    get killed(): boolean;
+    get loadBalanced(): boolean;
+    /* Excluded from this release type: [Symbol.asyncDispose] */
+    /* Excluded from this release type: asyncDispose */
+    /** Returns current buffered documents length */
+    bufferedCount(): number;
+    /** Returns current buffered documents */
+    readBufferedDocuments(number?: number): NonNullable<TSchema>[];
+    [Symbol.asyncIterator](): AsyncGenerator<TSchema, void, void>;
+    stream(options?: CursorStreamOptions): Readable & AsyncIterable<TSchema>;
+    hasNext(): Promise<boolean>;
+    /** Get the next available document from the cursor, returns null if no more documents are available. */
+    next(): Promise<TSchema | null>;
+    /**
+     * Try to get the next available document from the cursor or `null` if an empty batch is returned
+     */
+    tryNext(): Promise<TSchema | null>;
+    /**
+     * Iterates over all the documents for this cursor using the iterator, callback pattern.
+     *
+     * If the iterator returns `false`, iteration will stop.
+     *
+     * @param iterator - The iteration callback.
+     * @deprecated - Will be removed in a future release. Use for await...of instead.
+     */
+    forEach(iterator: (doc: TSchema) => boolean | void): Promise<void>;
+    /**
+     * Frees any client-side resources used by the cursor.
+     */
+    close(options?: {
+        timeoutMS?: number;
+    }): Promise<void>;
+    /**
+     * Returns an array of documents. The caller is responsible for making sure that there
+     * is enough memory to store the results. Note that the array only contains partial
+     * results when this cursor had been previously accessed. In that case,
+     * cursor.rewind() can be used to reset the cursor.
+     */
+    toArray(): Promise<TSchema[]>;
+    /**
+     * Add a cursor flag to the cursor
+     *
+     * @param flag - The flag to set, must be one of following ['tailable', 'oplogReplay', 'noCursorTimeout', 'awaitData', 'partial' -.
+     * @param value - The flag boolean value.
+     */
+    addCursorFlag(flag: CursorFlag, value: boolean): this;
+    /**
+     * Map all documents using the provided function
+     * If there is a transform set on the cursor, that will be called first and the result passed to
+     * this function's transform.
+     *
+     * @remarks
+     *
+     * **Note** Cursors use `null` internally to indicate that there are no more documents in the cursor. Providing a mapping
+     * function that maps values to `null` will result in the cursor closing itself before it has finished iterating
+     * all documents.  This will **not** result in a memory leak, just surprising behavior.  For example:
+     *
+     * ```typescript
+     * const cursor = collection.find({});
+     * cursor.map(() => null);
+     *
+     * const documents = await cursor.toArray();
+     * // documents is always [], regardless of how many documents are in the collection.
+     * ```
+     *
+     * Other falsey values are allowed:
+     *
+     * ```typescript
+     * const cursor = collection.find({});
+     * cursor.map(() => '');
+     *
+     * const documents = await cursor.toArray();
+     * // documents is now an array of empty strings
+     * ```
+     *
+     * **Note for Typescript Users:** adding a transform changes the return type of the iteration of this cursor,
+     * it **does not** return a new instance of a cursor. This means when calling map,
+     * you should always assign the result to a new variable in order to get a correctly typed cursor variable.
+     * Take note of the following example:
+     *
+     * @example
+     * ```typescript
+     * const cursor: FindCursor<Document> = coll.find();
+     * const mappedCursor: FindCursor<number> = cursor.map(doc => Object.keys(doc).length);
+     * const keyCounts: number[] = await mappedCursor.toArray(); // cursor.toArray() still returns Document[]
+     * ```
+     * @param transform - The mapping transformation method.
+     */
+    map<T = any>(transform: (doc: TSchema) => T): AbstractCursor<T>;
+    /**
+     * Set the ReadPreference for the cursor.
+     *
+     * @param readPreference - The new read preference for the cursor.
+     */
+    withReadPreference(readPreference: ReadPreferenceLike): this;
+    /**
+     * Set the ReadPreference for the cursor.
+     *
+     * @param readPreference - The new read preference for the cursor.
+     */
+    withReadConcern(readConcern: ReadConcernLike): this;
+    /**
+     * Set a maxTimeMS on the cursor query, allowing for hard timeout limits on queries (Only supported on MongoDB 2.6 or higher)
+     *
+     * @param value - Number of milliseconds to wait before aborting the query.
+     */
+    maxTimeMS(value: number): this;
+    /**
+     * Set the batch size for the cursor.
+     *
+     * @param value - The number of documents to return per batch. See {@link https://www.mongodb.com/docs/manual/reference/command/find/|find command documentation}.
+     */
+    batchSize(value: number): this;
+    /**
+     * Rewind this cursor to its uninitialized state. Any options that are present on the cursor will
+     * remain in effect. Iterating this cursor will cause new queries to be sent to the server, even
+     * if the resultant data has already been retrieved by this cursor.
+     */
+    rewind(): void;
+    /**
+     * Returns a new uninitialized copy of this cursor, with options matching those that have been set on the current instance
+     */
+    abstract clone(): AbstractCursor<TSchema>;
+    /* Excluded from this release type: _initialize */
+    /* Excluded from this release type: getMore */
+    /* Excluded from this release type: cursorInit */
+    /* Excluded from this release type: fetchBatch */
+    /* Excluded from this release type: cleanup */
+    /* Excluded from this release type: hasEmittedClose */
+    /* Excluded from this release type: emitClose */
+    /* Excluded from this release type: transformDocument */
+    /* Excluded from this release type: throwIfInitialized */
+}
+
+/** @public */
+export declare type AbstractCursorEvents = {
+    [AbstractCursor.CLOSE](): void;
+};
+
+/** @public */
+export declare interface AbstractCursorOptions extends BSONSerializeOptions {
+    session?: ClientSession;
+    readPreference?: ReadPreferenceLike;
+    readConcern?: ReadConcernLike;
+    /**
+     * Specifies the number of documents to return in each response from MongoDB
+     */
+    batchSize?: number;
+    /**
+     * When applicable `maxTimeMS` controls the amount of time the initial command
+     * that constructs a cursor should take. (ex. find, aggregate, listCollections)
+     */
+    maxTimeMS?: number;
+    /**
+     * When applicable `maxAwaitTimeMS` controls the amount of time subsequent getMores
+     * that a cursor uses to fetch more data should take. (ex. cursor.next())
+     */
+    maxAwaitTimeMS?: number;
+    /**
+     * Comment to apply to the operation.
+     *
+     * In server versions pre-4.4, 'comment' must be string.  A server
+     * error will be thrown if any other type is provided.
+     *
+     * In server versions 4.4 and above, 'comment' can be any valid BSON type.
+     */
+    comment?: unknown;
+    /**
+     * By default, MongoDB will automatically close a cursor when the
+     * client has exhausted all results in the cursor. However, for [capped collections](https://www.mongodb.com/docs/manual/core/capped-collections)
+     * you may use a Tailable Cursor that remains open after the client exhausts
+     * the results in the initial cursor.
+     */
+    tailable?: boolean;
+    /**
+     * If awaitData is set to true, when the cursor reaches the end of the capped collection,
+     * MongoDB blocks the query thread for a period of time waiting for new data to arrive.
+     * When new data is inserted into the capped collection, the blocked thread is signaled
+     * to wake up and return the next batch to the client.
+     */
+    awaitData?: boolean;
+    noCursorTimeout?: boolean;
+    /** Specifies the time an operation will run until it throws a timeout error. See {@link AbstractCursorOptions.timeoutMode} for more details on how this option applies to cursors. */
+    timeoutMS?: number;
+    /**
+     * @public
+     * @experimental
+     * Specifies how `timeoutMS` is applied to the cursor. Can be either `'cursorLifeTime'` or `'iteration'`
+     * When set to `'iteration'`, the deadline specified by `timeoutMS` applies to each call of
+     * `cursor.next()`.
+     * When set to `'cursorLifetime'`, the deadline applies to the life of the entire cursor.
+     *
+     * Depending on the type of cursor being used, this option has different default values.
+     * For non-tailable cursors, this value defaults to `'cursorLifetime'`
+     * For tailable cursors, this value defaults to `'iteration'` since tailable cursors, by
+     * definition can have an arbitrarily long lifetime.
+     *
+     * @example
+     * ```ts
+     * const cursor = collection.find({}, {timeoutMS: 100, timeoutMode: 'iteration'});
+     * for await (const doc of cursor) {
+     *  // process doc
+     *  // This will throw a timeout error if any of the iterator's `next()` calls takes more than 100ms, but
+     *  // will continue to iterate successfully otherwise, regardless of the number of batches.
+     * }
+     * ```
+     *
+     * @example
+     * ```ts
+     * const cursor = collection.find({}, { timeoutMS: 1000, timeoutMode: 'cursorLifetime' });
+     * const docs = await cursor.toArray(); // This entire line will throw a timeout error if all batches are not fetched and returned within 1000ms.
+     * ```
+     */
+    timeoutMode?: CursorTimeoutMode;
+    /* Excluded from this release type: timeoutContext */
+}
+
+/* Excluded from this release type: AbstractOperation */
+
+/** @public */
+export declare type AcceptedFields<TSchema, FieldType, AssignableType> = {
+    readonly [key in KeysOfAType<TSchema, FieldType>]?: AssignableType;
+};
+
+/** @public */
+export declare type AddToSetOperators<Type> = {
+    $each?: Array<Flatten<Type>>;
+};
+
+/**
+ * The **Admin** class is an internal class that allows convenient access to
+ * the admin functionality and commands for MongoDB.
+ *
+ * **ADMIN Cannot directly be instantiated**
+ * @public
+ *
+ * @example
+ * ```ts
+ * import { MongoClient } from 'mongodb';
+ *
+ * const client = new MongoClient('mongodb://localhost:27017');
+ * const admin = client.db().admin();
+ * const dbInfo = await admin.listDatabases();
+ * for (const db of dbInfo.databases) {
+ *   console.log(db.name);
+ * }
+ * ```
+ */
+export declare class Admin {
+    /* Excluded from this release type: s */
+    /* Excluded from this release type: __constructor */
+    /**
+     * Execute a command
+     *
+     * The driver will ensure the following fields are attached to the command sent to the server:
+     * - `lsid` - sourced from an implicit session or options.session
+     * - `$readPreference` - defaults to primary or can be configured by options.readPreference
+     * - `$db` - sourced from the name of this database
+     *
+     * If the client has a serverApi setting:
+     * - `apiVersion`
+     * - `apiStrict`
+     * - `apiDeprecationErrors`
+     *
+     * When in a transaction:
+     * - `readConcern` - sourced from readConcern set on the TransactionOptions
+     * - `writeConcern` - sourced from writeConcern set on the TransactionOptions
+     *
+     * Attaching any of the above fields to the command will have no effect as the driver will overwrite the value.
+     *
+     * @param command - The command to execute
+     * @param options - Optional settings for the command
+     */
+    command(command: Document, options?: RunCommandOptions): Promise<Document>;
+    /**
+     * Retrieve the server build information
+     *
+     * @param options - Optional settings for the command
+     */
+    buildInfo(options?: CommandOperationOptions): Promise<Document>;
+    /**
+     * Retrieve the server build information
+     *
+     * @param options - Optional settings for the command
+     */
+    serverInfo(options?: CommandOperationOptions): Promise<Document>;
+    /**
+     * Retrieve this db's server status.
+     *
+     * @param options - Optional settings for the command
+     */
+    serverStatus(options?: CommandOperationOptions): Promise<Document>;
+    /**
+     * Ping the MongoDB server and retrieve results
+     *
+     * @param options - Optional settings for the command
+     */
+    ping(options?: CommandOperationOptions): Promise<Document>;
+    /**
+     * Remove a user from a database
+     *
+     * @param username - The username to remove
+     * @param options - Optional settings for the command
+     */
+    removeUser(username: string, options?: RemoveUserOptions): Promise<boolean>;
+    /**
+     * Validate an existing collection
+     *
+     * @param collectionName - The name of the collection to validate.
+     * @param options - Optional settings for the command
+     */
+    validateCollection(collectionName: string, options?: ValidateCollectionOptions): Promise<Document>;
+    /**
+     * List the available databases
+     *
+     * @param options - Optional settings for the command
+     */
+    listDatabases(options?: ListDatabasesOptions): Promise<ListDatabasesResult>;
+    /**
+     * Get ReplicaSet status
+     *
+     * @param options - Optional settings for the command
+     */
+    replSetGetStatus(options?: CommandOperationOptions): Promise<Document>;
+}
+
+/* Excluded from this release type: AdminPrivate */
+
+/* Excluded from this release type: AggregateOperation */
+
+/** @public */
+export declare interface AggregateOptions extends Omit<CommandOperationOptions, 'explain'> {
+    /** allowDiskUse lets the server know if it can use disk to store temporary results for the aggregation (requires mongodb 2.6 \>). */
+    allowDiskUse?: boolean;
+    /** The number of documents to return per batch. See [aggregation documentation](https://www.mongodb.com/docs/manual/reference/command/aggregate). */
+    batchSize?: number;
+    /** Allow driver to bypass schema validation. */
+    bypassDocumentValidation?: boolean;
+    /** Return the query as cursor, on 2.6 \> it returns as a real cursor on pre 2.6 it returns as an emulated cursor. */
+    cursor?: Document;
+    /**
+     * Specifies a cumulative time limit in milliseconds for processing operations on the cursor. MongoDB interrupts the operation at the earliest following interrupt point.
+     */
+    maxTimeMS?: number;
+    /** The maximum amount of time for the server to wait on new documents to satisfy a tailable cursor query. */
+    maxAwaitTimeMS?: number;
+    /** Specify collation. */
+    collation?: CollationOptions;
+    /** Add an index selection hint to an aggregation command */
+    hint?: Hint;
+    /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+    let?: Document;
+    out?: string;
+    /**
+     * Specifies the verbosity mode for the explain output.
+     * @deprecated This API is deprecated in favor of `collection.aggregate().explain()`
+     * or `db.aggregate().explain()`.
+     */
+    explain?: ExplainOptions['explain'];
+    /* Excluded from this release type: timeoutMode */
+}
+
+/**
+ * The **AggregationCursor** class is an internal class that embodies an aggregation cursor on MongoDB
+ * allowing for iteration over the results returned from the underlying query. It supports
+ * one by one document iteration, conversion to an array or can be iterated as a Node 4.X
+ * or higher stream
+ * @public
+ */
+export declare class AggregationCursor<TSchema = any> extends ExplainableCursor<TSchema> {
+    readonly pipeline: Document[];
+    /* Excluded from this release type: aggregateOptions */
+    /* Excluded from this release type: __constructor */
+    clone(): AggregationCursor<TSchema>;
+    map<T>(transform: (doc: TSchema) => T): AggregationCursor<T>;
+    /* Excluded from this release type: _initialize */
+    /** Execute the explain for the cursor */
+    explain(): Promise<Document>;
+    explain(verbosity: ExplainVerbosityLike | ExplainCommandOptions): Promise<Document>;
+    explain(options: {
+        timeoutMS?: number;
+    }): Promise<Document>;
+    explain(verbosity: ExplainVerbosityLike | ExplainCommandOptions, options: {
+        timeoutMS?: number;
+    }): Promise<Document>;
+    /** Add a stage to the aggregation pipeline
+     * @example
+     * ```
+     * const documents = await users.aggregate().addStage({ $match: { name: /Mike/ } }).toArray();
+     * ```
+     * @example
+     * ```
+     * const documents = await users.aggregate()
+     *   .addStage<{ name: string }>({ $project: { name: true } })
+     *   .toArray(); // type of documents is { name: string }[]
+     * ```
+     */
+    addStage(stage: Document): this;
+    addStage<T = Document>(stage: Document): AggregationCursor<T>;
+    /** Add a group stage to the aggregation pipeline */
+    group<T = TSchema>($group: Document): AggregationCursor<T>;
+    /** Add a limit stage to the aggregation pipeline */
+    limit($limit: number): this;
+    /** Add a match stage to the aggregation pipeline */
+    match($match: Document): this;
+    /** Add an out stage to the aggregation pipeline */
+    out($out: {
+        db: string;
+        coll: string;
+    } | string): this;
+    /**
+     * Add a project stage to the aggregation pipeline
+     *
+     * @remarks
+     * In order to strictly type this function you must provide an interface
+     * that represents the effect of your projection on the result documents.
+     *
+     * By default chaining a projection to your cursor changes the returned type to the generic {@link Document} type.
+     * You should specify a parameterized type to have assertions on your final results.
+     *
+     * @example
+     * ```typescript
+     * // Best way
+     * const docs: AggregationCursor<{ a: number }> = cursor.project<{ a: number }>({ _id: 0, a: true });
+     * // Flexible way
+     * const docs: AggregationCursor<Document> = cursor.project({ _id: 0, a: true });
+     * ```
+     *
+     * @remarks
+     * In order to strictly type this function you must provide an interface
+     * that represents the effect of your projection on the result documents.
+     *
+     * **Note for Typescript Users:** adding a transform changes the return type of the iteration of this cursor,
+     * it **does not** return a new instance of a cursor. This means when calling project,
+     * you should always assign the result to a new variable in order to get a correctly typed cursor variable.
+     * Take note of the following example:
+     *
+     * @example
+     * ```typescript
+     * const cursor: AggregationCursor<{ a: number; b: string }> = coll.aggregate([]);
+     * const projectCursor = cursor.project<{ a: number }>({ _id: 0, a: true });
+     * const aPropOnlyArray: {a: number}[] = await projectCursor.toArray();
+     *
+     * // or always use chaining and save the final cursor
+     *
+     * const cursor = coll.aggregate().project<{ a: string }>({
+     *   _id: 0,
+     *   a: { $convert: { input: '$a', to: 'string' }
+     * }});
+     * ```
+     */
+    project<T extends Document = Document>($project: Document): AggregationCursor<T>;
+    /** Add a lookup stage to the aggregation pipeline */
+    lookup($lookup: Document): this;
+    /** Add a redact stage to the aggregation pipeline */
+    redact($redact: Document): this;
+    /** Add a skip stage to the aggregation pipeline */
+    skip($skip: number): this;
+    /** Add a sort stage to the aggregation pipeline */
+    sort($sort: Sort): this;
+    /** Add a unwind stage to the aggregation pipeline */
+    unwind($unwind: Document | string): this;
+    /** Add a geoNear stage to the aggregation pipeline */
+    geoNear($geoNear: Document): this;
+}
+
+/** @public */
+export declare interface AggregationCursorOptions extends AbstractCursorOptions, AggregateOptions {
+}
+
+/**
+ * It is possible to search using alternative types in mongodb e.g.
+ * string types can be searched using a regex in mongo
+ * array types can be searched using their element type
+ * @public
+ */
+export declare type AlternativeType<T> = T extends ReadonlyArray<infer U> ? T | RegExpOrString<U> : RegExpOrString<T>;
+
+/** @public */
+export declare type AnyBulkWriteOperation<TSchema extends Document = Document> = {
+    insertOne: InsertOneModel<TSchema>;
+} | {
+    replaceOne: ReplaceOneModel<TSchema>;
+} | {
+    updateOne: UpdateOneModel<TSchema>;
+} | {
+    updateMany: UpdateManyModel<TSchema>;
+} | {
+    deleteOne: DeleteOneModel<TSchema>;
+} | {
+    deleteMany: DeleteManyModel<TSchema>;
+};
+
+/**
+ * Used to represent any of the client bulk write models that can be passed as an array
+ * to MongoClient#bulkWrite.
+ * @public
+ */
+export declare type AnyClientBulkWriteModel<TSchema extends Document> = ClientInsertOneModel<TSchema> | ClientReplaceOneModel<TSchema> | ClientUpdateOneModel<TSchema> | ClientUpdateManyModel<TSchema> | ClientDeleteOneModel<TSchema> | ClientDeleteManyModel<TSchema>;
+
+/** @public */
+export declare type AnyError = MongoError | Error;
+
+/** @public */
+export declare type ArrayElement<Type> = Type extends ReadonlyArray<infer Item> ? Item : never;
+
+/** @public */
+export declare type ArrayOperator<Type> = {
+    $each?: Array<Flatten<Type>>;
+    $slice?: number;
+    $position?: number;
+    $sort?: Sort;
+};
+
+/**
+ * @public
+ */
+declare interface AsyncDisposable_2 {
+    /* Excluded from this release type: [Symbol.asyncDispose] */
+    /* Excluded from this release type: asyncDispose */
+}
+export { AsyncDisposable_2 as AsyncDisposable }
+
+/** @public */
+export declare interface Auth {
+    /** The username for auth */
+    username?: string;
+    /** The password for auth */
+    password?: string;
+}
+
+/* Excluded from this release type: AuthContext */
+
+/** @public */
+export declare const AuthMechanism: Readonly<{
+    readonly MONGODB_AWS: "MONGODB-AWS";
+    readonly MONGODB_CR: "MONGODB-CR";
+    readonly MONGODB_DEFAULT: "DEFAULT";
+    readonly MONGODB_GSSAPI: "GSSAPI";
+    readonly MONGODB_PLAIN: "PLAIN";
+    readonly MONGODB_SCRAM_SHA1: "SCRAM-SHA-1";
+    readonly MONGODB_SCRAM_SHA256: "SCRAM-SHA-256";
+    readonly MONGODB_X509: "MONGODB-X509";
+    readonly MONGODB_OIDC: "MONGODB-OIDC";
+}>;
+
+/** @public */
+export declare type AuthMechanism = (typeof AuthMechanism)[keyof typeof AuthMechanism];
+
+/** @public */
+export declare interface AuthMechanismProperties extends Document {
+    SERVICE_HOST?: string;
+    SERVICE_NAME?: string;
+    SERVICE_REALM?: string;
+    CANONICALIZE_HOST_NAME?: GSSAPICanonicalizationValue;
+    AWS_SESSION_TOKEN?: string;
+    /** A user provided OIDC machine callback function. */
+    OIDC_CALLBACK?: OIDCCallbackFunction;
+    /** A user provided OIDC human interacted callback function. */
+    OIDC_HUMAN_CALLBACK?: OIDCCallbackFunction;
+    /** The OIDC environment. Note that 'test' is for internal use only. */
+    ENVIRONMENT?: 'test' | 'azure' | 'gcp' | 'k8s';
+    /** Allowed hosts that OIDC auth can connect to. */
+    ALLOWED_HOSTS?: string[];
+    /** The resource token for OIDC auth in Azure and GCP. */
+    TOKEN_RESOURCE?: string;
+}
+
+/* Excluded from this release type: AuthProvider */
+
+/* Excluded from this release type: AutoEncrypter */
+
+/**
+ * @public
+ *
+ * Extra options related to the mongocryptd process
+ * \* _Available in MongoDB 6.0 or higher._
+ */
+export declare type AutoEncryptionExtraOptions = NonNullable<AutoEncryptionOptions['extraOptions']>;
+
+/** @public */
+export declare const AutoEncryptionLoggerLevel: Readonly<{
+    readonly FatalError: 0;
+    readonly Error: 1;
+    readonly Warning: 2;
+    readonly Info: 3;
+    readonly Trace: 4;
+}>;
+
+/**
+ * @public
+ * The level of severity of the log message
+ *
+ * | Value | Level |
+ * |-------|-------|
+ * | 0 | Fatal Error |
+ * | 1 | Error |
+ * | 2 | Warning |
+ * | 3 | Info |
+ * | 4 | Trace |
+ */
+export declare type AutoEncryptionLoggerLevel = (typeof AutoEncryptionLoggerLevel)[keyof typeof AutoEncryptionLoggerLevel];
+
+/** @public */
+export declare interface AutoEncryptionOptions {
+    /* Excluded from this release type: metadataClient */
+    /** A `MongoClient` used to fetch keys from a key vault */
+    keyVaultClient?: MongoClient;
+    /** The namespace where keys are stored in the key vault */
+    keyVaultNamespace?: string;
+    /** Configuration options that are used by specific KMS providers during key generation, encryption, and decryption. */
+    kmsProviders?: KMSProviders;
+    /**
+     * A map of namespaces to a local JSON schema for encryption
+     *
+     * **NOTE**: Supplying options.schemaMap provides more security than relying on JSON Schemas obtained from the server.
+     * It protects against a malicious server advertising a false JSON Schema, which could trick the client into sending decrypted data that should be encrypted.
+     * Schemas supplied in the schemaMap only apply to configuring automatic encryption for Client-Side Field Level Encryption.
+     * Other validation rules in the JSON schema will not be enforced by the driver and will result in an error.
+     */
+    schemaMap?: Document;
+    /** Supply a schema for the encrypted fields in the document  */
+    encryptedFieldsMap?: Document;
+    /** Allows the user to bypass auto encryption, maintaining implicit decryption */
+    bypassAutoEncryption?: boolean;
+    /** Allows users to bypass query analysis */
+    bypassQueryAnalysis?: boolean;
+    options?: {
+        /** An optional hook to catch logging messages from the underlying encryption engine */
+        logger?: (level: AutoEncryptionLoggerLevel, message: string) => void;
+    };
+    extraOptions?: {
+        /**
+         * A local process the driver communicates with to determine how to encrypt values in a command.
+         * Defaults to "mongodb://%2Fvar%2Fmongocryptd.sock" if domain sockets are available or "mongodb://localhost:27020" otherwise
+         */
+        mongocryptdURI?: string;
+        /** If true, autoEncryption will not attempt to spawn a mongocryptd before connecting  */
+        mongocryptdBypassSpawn?: boolean;
+        /** The path to the mongocryptd executable on the system */
+        mongocryptdSpawnPath?: string;
+        /** Command line arguments to use when auto-spawning a mongocryptd */
+        mongocryptdSpawnArgs?: string[];
+        /**
+         * Full path to a MongoDB Crypt shared library to be used (instead of mongocryptd).
+         *
+         * This needs to be the path to the file itself, not a directory.
+         * It can be an absolute or relative path. If the path is relative and
+         * its first component is `$ORIGIN`, it will be replaced by the directory
+         * containing the mongodb-client-encryption native addon file. Otherwise,
+         * the path will be interpreted relative to the current working directory.
+         *
+         * Currently, loading different MongoDB Crypt shared library files from different
+         * MongoClients in the same process is not supported.
+         *
+         * If this option is provided and no MongoDB Crypt shared library could be loaded
+         * from the specified location, creating the MongoClient will fail.
+         *
+         * If this option is not provided and `cryptSharedLibRequired` is not specified,
+         * the AutoEncrypter will attempt to spawn and/or use mongocryptd according
+         * to the mongocryptd-specific `extraOptions` options.
+         *
+         * Specifying a path prevents mongocryptd from being used as a fallback.
+         *
+         * Requires the MongoDB Crypt shared library, available in MongoDB 6.0 or higher.
+         */
+        cryptSharedLibPath?: string;
+        /**
+         * If specified, never use mongocryptd and instead fail when the MongoDB Crypt
+         * shared library could not be loaded.
+         *
+         * This is always true when `cryptSharedLibPath` is specified.
+         *
+         * Requires the MongoDB Crypt shared library, available in MongoDB 6.0 or higher.
+         */
+        cryptSharedLibRequired?: boolean;
+        /* Excluded from this release type: cryptSharedLibSearchPaths */
+    };
+    proxyOptions?: ProxyOptions;
+    /** The TLS options to use connecting to the KMS provider */
+    tlsOptions?: CSFLEKMSTlsOptions;
+}
+
+/**
+ * @public
+ * Configuration options for making an AWS encryption key
+ */
+export declare interface AWSEncryptionKeyOptions {
+    /**
+     * The AWS region of the KMS
+     */
+    region: string;
+    /**
+     * The Amazon Resource Name (ARN) to the AWS customer master key (CMK)
+     */
+    key: string;
+    /**
+     * An alternate host to send KMS requests to. May include port number.
+     */
+    endpoint?: string | undefined;
+}
+
+/** @public */
+export declare interface AWSKMSProviderConfiguration {
+    /**
+     * The access key used for the AWS KMS provider
+     */
+    accessKeyId: string;
+    /**
+     * The secret access key used for the AWS KMS provider
+     */
+    secretAccessKey: string;
+    /**
+     * An optional AWS session token that will be used as the
+     * X-Amz-Security-Token header for AWS requests.
+     */
+    sessionToken?: string;
+}
+
+/**
+ * @public
+ * Configuration options for making an Azure encryption key
+ */
+export declare interface AzureEncryptionKeyOptions {
+    /**
+     * Key name
+     */
+    keyName: string;
+    /**
+     * Key vault URL, typically `<name>.vault.azure.net`
+     */
+    keyVaultEndpoint: string;
+    /**
+     * Key version
+     */
+    keyVersion?: string | undefined;
+}
+
+/** @public */
+export declare type AzureKMSProviderConfiguration = {
+    /**
+     * The tenant ID identifies the organization for the account
+     */
+    tenantId: string;
+    /**
+     * The client ID to authenticate a registered application
+     */
+    clientId: string;
+    /**
+     * The client secret to authenticate a registered application
+     */
+    clientSecret: string;
+    /**
+     * If present, a host with optional port. E.g. "example.com" or "example.com:443".
+     * This is optional, and only needed if customer is using a non-commercial Azure instance
+     * (e.g. a government or China account, which use different URLs).
+     * Defaults to "login.microsoftonline.com"
+     */
+    identityPlatformEndpoint?: string | undefined;
+} | {
+    /**
+     * If present, an access token to authenticate with Azure.
+     */
+    accessToken: string;
+};
+
+/**
+ * Keeps the state of a unordered batch so we can rewrite the results
+ * correctly after command execution
+ *
+ * @public
+ */
+export declare class Batch<T = Document> {
+    originalZeroIndex: number;
+    currentIndex: number;
+    originalIndexes: number[];
+    batchType: BatchType;
+    operations: T[];
+    size: number;
+    sizeBytes: number;
+    constructor(batchType: BatchType, originalZeroIndex: number);
+}
+
+/** @public */
+export declare const BatchType: Readonly<{
+    readonly INSERT: 1;
+    readonly UPDATE: 2;
+    readonly DELETE: 3;
+}>;
+
+/** @public */
+export declare type BatchType = (typeof BatchType)[keyof typeof BatchType];
+
+export { Binary }
+
+/** @public */
+export declare type BitwiseFilter = number /** numeric bit mask */ | Binary /** BinData bit mask */ | ReadonlyArray<number>;
+
+export { BSON }
+
+/* Excluded from this release type: BSONElement */
+export { BSONRegExp }
+
+/**
+ * BSON Serialization options.
+ * @public
+ */
+export declare interface BSONSerializeOptions extends Omit<SerializeOptions, 'index'>, Omit<DeserializeOptions, 'evalFunctions' | 'cacheFunctions' | 'cacheFunctionsCrc32' | 'allowObjectSmallerThanBufferSize' | 'index' | 'validation'> {
+    /**
+     * Enabling the raw option will return a [Node.js Buffer](https://nodejs.org/api/buffer.html)
+     * which is allocated using [allocUnsafe API](https://nodejs.org/api/buffer.html#static-method-bufferallocunsafesize).
+     * See this section from the [Node.js Docs here](https://nodejs.org/api/buffer.html#what-makes-bufferallocunsafe-and-bufferallocunsafeslow-unsafe)
+     * for more detail about what "unsafe" refers to in this context.
+     * If you need to maintain your own editable clone of the bytes returned for an extended life time of the process, it is recommended you allocate
+     * your own buffer and clone the contents:
+     *
+     * @example
+     * ```ts
+     * const raw = await collection.findOne({}, { raw: true });
+     * const myBuffer = Buffer.alloc(raw.byteLength);
+     * myBuffer.set(raw, 0);
+     * // Only save and use `myBuffer` beyond this point
+     * ```
+     *
+     * @remarks
+     * Please note there is a known limitation where this option cannot be used at the MongoClient level (see [NODE-3946](https://jira.mongodb.org/browse/NODE-3946)).
+     * It does correctly work at `Db`, `Collection`, and per operation the same as other BSON options work.
+     */
+    raw?: boolean;
+    /** Enable utf8 validation when deserializing BSON documents.  Defaults to true. */
+    enableUtf8Validation?: boolean;
+}
+
+export { BSONSymbol }
+
+export { BSONType }
+
+/** @public */
+export declare type BSONTypeAlias = keyof typeof BSONType;
+
+/* Excluded from this release type: BufferPool */
+
+/** @public */
+export declare abstract class BulkOperationBase {
+    private collection;
+    isOrdered: boolean;
+    /* Excluded from this release type: s */
+    operationId?: number;
+    /* Excluded from this release type: __constructor */
+    /**
+     * Add a single insert document to the bulk operation
+     *
+     * @example
+     * ```ts
+     * const bulkOp = collection.initializeOrderedBulkOp();
+     *
+     * // Adds three inserts to the bulkOp.
+     * bulkOp
+     *   .insert({ a: 1 })
+     *   .insert({ b: 2 })
+     *   .insert({ c: 3 });
+     * await bulkOp.execute();
+     * ```
+     */
+    insert(document: Document): BulkOperationBase;
+    /**
+     * Builds a find operation for an update/updateOne/delete/deleteOne/replaceOne.
+     * Returns a builder object used to complete the definition of the operation.
+     *
+     * @example
+     * ```ts
+     * const bulkOp = collection.initializeOrderedBulkOp();
+     *
+     * // Add an updateOne to the bulkOp
+     * bulkOp.find({ a: 1 }).updateOne({ $set: { b: 2 } });
+     *
+     * // Add an updateMany to the bulkOp
+     * bulkOp.find({ c: 3 }).update({ $set: { d: 4 } });
+     *
+     * // Add an upsert
+     * bulkOp.find({ e: 5 }).upsert().updateOne({ $set: { f: 6 } });
+     *
+     * // Add a deletion
+     * bulkOp.find({ g: 7 }).deleteOne();
+     *
+     * // Add a multi deletion
+     * bulkOp.find({ h: 8 }).delete();
+     *
+     * // Add a replaceOne
+     * bulkOp.find({ i: 9 }).replaceOne({writeConcern: { j: 10 }});
+     *
+     * // Update using a pipeline (requires Mongodb 4.2 or higher)
+     * bulk.find({ k: 11, y: { $exists: true }, z: { $exists: true } }).updateOne([
+     *   { $set: { total: { $sum: [ '$y', '$z' ] } } }
+     * ]);
+     *
+     * // All of the ops will now be executed
+     * await bulkOp.execute();
+     * ```
+     */
+    find(selector: Document): FindOperators;
+    /** Specifies a raw operation to perform in the bulk write. */
+    raw(op: AnyBulkWriteOperation): this;
+    get length(): number;
+    get bsonOptions(): BSONSerializeOptions;
+    get writeConcern(): WriteConcern | undefined;
+    get batches(): Batch[];
+    execute(options?: BulkWriteOptions): Promise<BulkWriteResult>;
+    /* Excluded from this release type: handleWriteError */
+    abstract addToOperationsList(batchType: BatchType, document: Document | UpdateStatement | DeleteStatement): this;
+    private shouldForceServerObjectId;
+}
+
+/* Excluded from this release type: BulkOperationPrivate */
+
+/* Excluded from this release type: BulkResult */
+
+/** @public */
+export declare interface BulkWriteOperationError {
+    index: number;
+    code: number;
+    errmsg: string;
+    errInfo: Document;
+    op: Document | UpdateStatement | DeleteStatement;
+}
+
+/** @public */
+export declare interface BulkWriteOptions extends CommandOperationOptions {
+    /**
+     * Allow driver to bypass schema validation.
+     * @defaultValue `false` - documents will be validated by default
+     **/
+    bypassDocumentValidation?: boolean;
+    /**
+     * If true, when an insert fails, don't execute the remaining writes.
+     * If false, continue with remaining inserts when one fails.
+     * @defaultValue `true` - inserts are ordered by default
+     */
+    ordered?: boolean;
+    /**
+     * Force server to assign _id values instead of driver.
+     * @defaultValue `false` - the driver generates `_id` fields by default
+     **/
+    forceServerObjectId?: boolean;
+    /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+    let?: Document;
+    /* Excluded from this release type: timeoutContext */
+}
+
+/**
+ * @public
+ * The result of a bulk write.
+ */
+export declare class BulkWriteResult {
+    private readonly result;
+    /** Number of documents inserted. */
+    readonly insertedCount: number;
+    /** Number of documents matched for update. */
+    readonly matchedCount: number;
+    /** Number of documents modified. */
+    readonly modifiedCount: number;
+    /** Number of documents deleted. */
+    readonly deletedCount: number;
+    /** Number of documents upserted. */
+    readonly upsertedCount: number;
+    /** Upserted document generated Id's, hash key is the index of the originating operation */
+    readonly upsertedIds: {
+        [key: number]: any;
+    };
+    /** Inserted document generated Id's, hash key is the index of the originating operation */
+    readonly insertedIds: {
+        [key: number]: any;
+    };
+    private static generateIdMap;
+    /* Excluded from this release type: __constructor */
+    /** Evaluates to true if the bulk operation correctly executes */
+    get ok(): number;
+    /* Excluded from this release type: getSuccessfullyInsertedIds */
+    /** Returns the upserted id at the given index */
+    getUpsertedIdAt(index: number): Document | undefined;
+    /** Returns raw internal result */
+    getRawResponse(): Document;
+    /** Returns true if the bulk operation contains a write error */
+    hasWriteErrors(): boolean;
+    /** Returns the number of write errors off the bulk operation */
+    getWriteErrorCount(): number;
+    /** Returns a specific write error object */
+    getWriteErrorAt(index: number): WriteError | undefined;
+    /** Retrieve all write errors */
+    getWriteErrors(): WriteError[];
+    /** Retrieve the write concern error if one exists */
+    getWriteConcernError(): WriteConcernError | undefined;
+    toString(): string;
+    isOk(): boolean;
+}
+
+/**
+ * MongoDB Driver style callback
+ * @public
+ */
+export declare type Callback<T = any> = (error?: AnyError, result?: T) => void;
+
+/** @public */
+export declare class CancellationToken extends TypedEventEmitter<{
+    cancel(): void;
+}> {
+}
+
+/**
+ * Creates a new Change Stream instance. Normally created using {@link Collection#watch|Collection.watch()}.
+ * @public
+ */
+export declare class ChangeStream<TSchema extends Document = Document, TChange extends Document = ChangeStreamDocument<TSchema>> extends TypedEventEmitter<ChangeStreamEvents<TSchema, TChange>> implements AsyncDisposable_2 {
+    /* Excluded from this release type: [Symbol.asyncDispose] */
+    /* Excluded from this release type: asyncDispose */
+    pipeline: Document[];
+    /**
+     * @remarks WriteConcern can still be present on the options because
+     * we inherit options from the client/db/collection.  The
+     * key must be present on the options in order to delete it.
+     * This allows typescript to delete the key but will
+     * not allow a writeConcern to be assigned as a property on options.
+     */
+    options: ChangeStreamOptions & {
+        writeConcern?: never;
+    };
+    parent: MongoClient | Db | Collection;
+    namespace: MongoDBNamespace;
+    type: symbol;
+    /* Excluded from this release type: cursor */
+    streamOptions?: CursorStreamOptions;
+    /* Excluded from this release type: [kCursorStream] */
+    /* Excluded from this release type: [kClosed] */
+    /* Excluded from this release type: [kMode] */
+    /** @event */
+    static readonly RESPONSE: "response";
+    /** @event */
+    static readonly MORE: "more";
+    /** @event */
+    static readonly INIT: "init";
+    /** @event */
+    static readonly CLOSE: "close";
+    /**
+     * Fired for each new matching change in the specified namespace. Attaching a `change`
+     * event listener to a Change Stream will switch the stream into flowing mode. Data will
+     * then be passed as soon as it is available.
+     * @event
+     */
+    static readonly CHANGE: "change";
+    /** @event */
+    static readonly END: "end";
+    /** @event */
+    static readonly ERROR: "error";
+    /**
+     * Emitted each time the change stream stores a new resume token.
+     * @event
+     */
+    static readonly RESUME_TOKEN_CHANGED: "resumeTokenChanged";
+    private timeoutContext?;
+    /**
+     * Note that this property is here to uniquely identify a ChangeStream instance as the owner of
+     * the {@link CursorTimeoutContext} instance (see {@link ChangeStream._createChangeStreamCursor}) to ensure
+     * that {@link AbstractCursor.close} does not mutate the timeoutContext.
+     */
+    private contextOwner;
+    /* Excluded from this release type: __constructor */
+    /* Excluded from this release type: cursorStream */
+    /** The cached resume token that is used to resume after the most recently returned change. */
+    get resumeToken(): ResumeToken;
+    /** Check if there is any document still available in the Change Stream */
+    hasNext(): Promise<boolean>;
+    /** Get the next available document from the Change Stream. */
+    next(): Promise<TChange>;
+    /**
+     * Try to get the next available document from the Change Stream's cursor or `null` if an empty batch is returned
+     */
+    tryNext(): Promise<TChange | null>;
+    [Symbol.asyncIterator](): AsyncGenerator<TChange, void, void>;
+    /** Is the cursor closed */
+    get closed(): boolean;
+    /**
+     * Frees the internal resources used by the change stream.
+     */
+    close(): Promise<void>;
+    /**
+     * Return a modified Readable stream including a possible transform method.
+     *
+     * NOTE: When using a Stream to process change stream events, the stream will
+     * NOT automatically resume in the case a resumable error is encountered.
+     *
+     * @throws MongoChangeStreamError if the underlying cursor or the change stream is closed
+     */
+    stream(options?: CursorStreamOptions): Readable & AsyncIterable<TChange>;
+    /* Excluded from this release type: _setIsEmitter */
+    /* Excluded from this release type: _setIsIterator */
+    /* Excluded from this release type: _createChangeStreamCursor */
+    /* Excluded from this release type: _closeEmitterModeWithError */
+    /* Excluded from this release type: _streamEvents */
+    /* Excluded from this release type: _endStream */
+    /* Excluded from this release type: _processChange */
+    /* Excluded from this release type: _processErrorStreamMode */
+    /* Excluded from this release type: _processErrorIteratorMode */
+    private _resume;
+}
+
+/**
+ * Only present when the `showExpandedEvents` flag is enabled.
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/modify/#mongodb-data-modify
+ */
+export declare interface ChangeStreamCollModDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'modify';
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/create/#mongodb-data-create
+ */
+export declare interface ChangeStreamCreateDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'create';
+}
+
+/**
+ * Only present when the `showExpandedEvents` flag is enabled.
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/createIndexes/#mongodb-data-createIndexes
+ */
+export declare interface ChangeStreamCreateIndexDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID, ChangeStreamDocumentOperationDescription {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'createIndexes';
+}
+
+/* Excluded from this release type: ChangeStreamCursor */
+
+/* Excluded from this release type: ChangeStreamCursorOptions */
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/#delete-event
+ */
+export declare interface ChangeStreamDeleteDocument<TSchema extends Document = Document> extends ChangeStreamDocumentCommon, ChangeStreamDocumentKey<TSchema>, ChangeStreamDocumentCollectionUUID {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'delete';
+    /** Namespace the delete event occurred on */
+    ns: ChangeStreamNameSpace;
+    /**
+     * Contains the pre-image of the modified or deleted document if the
+     * pre-image is available for the change event and either 'required' or
+     * 'whenAvailable' was specified for the 'fullDocumentBeforeChange' option
+     * when creating the change stream. If 'whenAvailable' was specified but the
+     * pre-image is unavailable, this will be explicitly set to null.
+     */
+    fullDocumentBeforeChange?: TSchema;
+}
+
+/** @public */
+export declare type ChangeStreamDocument<TSchema extends Document = Document> = ChangeStreamInsertDocument<TSchema> | ChangeStreamUpdateDocument<TSchema> | ChangeStreamReplaceDocument<TSchema> | ChangeStreamDeleteDocument<TSchema> | ChangeStreamDropDocument | ChangeStreamRenameDocument | ChangeStreamDropDatabaseDocument | ChangeStreamInvalidateDocument | ChangeStreamCreateIndexDocument | ChangeStreamCreateDocument | ChangeStreamCollModDocument | ChangeStreamDropIndexDocument | ChangeStreamShardCollectionDocument | ChangeStreamReshardCollectionDocument | ChangeStreamRefineCollectionShardKeyDocument;
+
+/** @public */
+export declare interface ChangeStreamDocumentCollectionUUID {
+    /**
+     * The UUID (Binary subtype 4) of the collection that the operation was performed on.
+     *
+     * Only present when the `showExpandedEvents` flag is enabled.
+     *
+     * **NOTE:** collectionUUID will be converted to a NodeJS Buffer if the promoteBuffers
+     *    flag is enabled.
+     *
+     * @sinceServerVersion 6.1.0
+     */
+    collectionUUID: Binary;
+}
+
+/** @public */
+export declare interface ChangeStreamDocumentCommon {
+    /**
+     * The id functions as an opaque token for use when resuming an interrupted
+     * change stream.
+     */
+    _id: ResumeToken;
+    /**
+     * The timestamp from the oplog entry associated with the event.
+     * For events that happened as part of a multi-document transaction, the associated change stream
+     * notifications will have the same clusterTime value, namely the time when the transaction was committed.
+     * On a sharded cluster, events that occur on different shards can have the same clusterTime but be
+     * associated with different transactions or even not be associated with any transaction.
+     * To identify events for a single transaction, you can use the combination of lsid and txnNumber in the change stream event document.
+     */
+    clusterTime?: Timestamp;
+    /**
+     * The transaction number.
+     * Only present if the operation is part of a multi-document transaction.
+     *
+     * **NOTE:** txnNumber can be a Long if promoteLongs is set to false
+     */
+    txnNumber?: number;
+    /**
+     * The identifier for the session associated with the transaction.
+     * Only present if the operation is part of a multi-document transaction.
+     */
+    lsid?: ServerSessionId;
+    /**
+     * When the change stream's backing aggregation pipeline contains the $changeStreamSplitLargeEvent
+     * stage, events larger than 16MB will be split into multiple events and contain the
+     * following information about which fragment the current event is.
+     */
+    splitEvent?: ChangeStreamSplitEvent;
+}
+
+/** @public */
+export declare interface ChangeStreamDocumentKey<TSchema extends Document = Document> {
+    /**
+     * For unsharded collections this contains a single field `_id`.
+     * For sharded collections, this will contain all the components of the shard key
+     */
+    documentKey: {
+        _id: InferIdType<TSchema>;
+        [shardKey: string]: any;
+    };
+}
+
+/** @public */
+export declare interface ChangeStreamDocumentOperationDescription {
+    /**
+     * An description of the operation.
+     *
+     * Only present when the `showExpandedEvents` flag is enabled.
+     *
+     * @sinceServerVersion 6.1.0
+     */
+    operationDescription?: Document;
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/#dropdatabase-event
+ */
+export declare interface ChangeStreamDropDatabaseDocument extends ChangeStreamDocumentCommon {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'dropDatabase';
+    /** The database dropped */
+    ns: {
+        db: string;
+    };
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/#drop-event
+ */
+export declare interface ChangeStreamDropDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'drop';
+    /** Namespace the drop event occurred on */
+    ns: ChangeStreamNameSpace;
+}
+
+/**
+ * Only present when the `showExpandedEvents` flag is enabled.
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/dropIndexes/#mongodb-data-dropIndexes
+ */
+export declare interface ChangeStreamDropIndexDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID, ChangeStreamDocumentOperationDescription {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'dropIndexes';
+}
+
+/** @public */
+export declare type ChangeStreamEvents<TSchema extends Document = Document, TChange extends Document = ChangeStreamDocument<TSchema>> = {
+    resumeTokenChanged(token: ResumeToken): void;
+    init(response: any): void;
+    more(response?: any): void;
+    response(): void;
+    end(): void;
+    error(error: Error): void;
+    change(change: TChange): void;
+    /**
+     * @remarks Note that the `close` event is currently emitted whenever the internal `ChangeStreamCursor`
+     * instance is closed, which can occur multiple times for a given `ChangeStream` instance.
+     *
+     * TODO(NODE-6434): address this issue in NODE-6434
+     */
+    close(): void;
+};
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/#insert-event
+ */
+export declare interface ChangeStreamInsertDocument<TSchema extends Document = Document> extends ChangeStreamDocumentCommon, ChangeStreamDocumentKey<TSchema>, ChangeStreamDocumentCollectionUUID {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'insert';
+    /** This key will contain the document being inserted */
+    fullDocument: TSchema;
+    /** Namespace the insert event occurred on */
+    ns: ChangeStreamNameSpace;
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/#invalidate-event
+ */
+export declare interface ChangeStreamInvalidateDocument extends ChangeStreamDocumentCommon {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'invalidate';
+}
+
+/** @public */
+export declare interface ChangeStreamNameSpace {
+    db: string;
+    coll: string;
+}
+
+/**
+ * Options that can be passed to a ChangeStream. Note that startAfter, resumeAfter, and startAtOperationTime are all mutually exclusive, and the server will error if more than one is specified.
+ * @public
+ */
+export declare interface ChangeStreamOptions extends Omit<AggregateOptions, 'writeConcern'> {
+    /**
+     * Allowed values: 'updateLookup', 'whenAvailable', 'required'.
+     *
+     * When set to 'updateLookup', the change notification for partial updates
+     * will include both a delta describing the changes to the document as well
+     * as a copy of the entire document that was changed from some time after
+     * the change occurred.
+     *
+     * When set to 'whenAvailable', configures the change stream to return the
+     * post-image of the modified document for replace and update change events
+     * if the post-image for this event is available.
+     *
+     * When set to 'required', the same behavior as 'whenAvailable' except that
+     * an error is raised if the post-image is not available.
+     */
+    fullDocument?: string;
+    /**
+     * Allowed values: 'whenAvailable', 'required', 'off'.
+     *
+     * The default is to not send a value, which is equivalent to 'off'.
+     *
+     * When set to 'whenAvailable', configures the change stream to return the
+     * pre-image of the modified document for replace, update, and delete change
+     * events if it is available.
+     *
+     * When set to 'required', the same behavior as 'whenAvailable' except that
+     * an error is raised if the pre-image is not available.
+     */
+    fullDocumentBeforeChange?: string;
+    /** The maximum amount of time for the server to wait on new documents to satisfy a change stream query. */
+    maxAwaitTimeMS?: number;
+    /**
+     * Allows you to start a changeStream after a specified event.
+     * @see https://www.mongodb.com/docs/manual/changeStreams/#resumeafter-for-change-streams
+     */
+    resumeAfter?: ResumeToken;
+    /**
+     * Similar to resumeAfter, but will allow you to start after an invalidated event.
+     * @see https://www.mongodb.com/docs/manual/changeStreams/#startafter-for-change-streams
+     */
+    startAfter?: ResumeToken;
+    /** Will start the changeStream after the specified operationTime. */
+    startAtOperationTime?: OperationTime;
+    /**
+     * The number of documents to return per batch.
+     * @see https://www.mongodb.com/docs/manual/reference/command/aggregate
+     */
+    batchSize?: number;
+    /**
+     * When enabled, configures the change stream to include extra change events.
+     *
+     * - createIndexes
+     * - dropIndexes
+     * - modify
+     * - create
+     * - shardCollection
+     * - reshardCollection
+     * - refineCollectionShardKey
+     */
+    showExpandedEvents?: boolean;
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/refineCollectionShardKey/#mongodb-data-refineCollectionShardKey
+ */
+export declare interface ChangeStreamRefineCollectionShardKeyDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID, ChangeStreamDocumentOperationDescription {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'refineCollectionShardKey';
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/#rename-event
+ */
+export declare interface ChangeStreamRenameDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'rename';
+    /** The new name for the `ns.coll` collection */
+    to: {
+        db: string;
+        coll: string;
+    };
+    /** The "from" namespace that the rename occurred on */
+    ns: ChangeStreamNameSpace;
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/#replace-event
+ */
+export declare interface ChangeStreamReplaceDocument<TSchema extends Document = Document> extends ChangeStreamDocumentCommon, ChangeStreamDocumentKey<TSchema> {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'replace';
+    /** The fullDocument of a replace event represents the document after the insert of the replacement document */
+    fullDocument: TSchema;
+    /** Namespace the replace event occurred on */
+    ns: ChangeStreamNameSpace;
+    /**
+     * Contains the pre-image of the modified or deleted document if the
+     * pre-image is available for the change event and either 'required' or
+     * 'whenAvailable' was specified for the 'fullDocumentBeforeChange' option
+     * when creating the change stream. If 'whenAvailable' was specified but the
+     * pre-image is unavailable, this will be explicitly set to null.
+     */
+    fullDocumentBeforeChange?: TSchema;
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/reshardCollection/#mongodb-data-reshardCollection
+ */
+export declare interface ChangeStreamReshardCollectionDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID, ChangeStreamDocumentOperationDescription {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'reshardCollection';
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/shardCollection/#mongodb-data-shardCollection
+ */
+export declare interface ChangeStreamShardCollectionDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID, ChangeStreamDocumentOperationDescription {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'shardCollection';
+}
+
+/** @public */
+export declare interface ChangeStreamSplitEvent {
+    /** Which fragment of the change this is. */
+    fragment: number;
+    /** The total number of fragments. */
+    of: number;
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/#update-event
+ */
+export declare interface ChangeStreamUpdateDocument<TSchema extends Document = Document> extends ChangeStreamDocumentCommon, ChangeStreamDocumentKey<TSchema>, ChangeStreamDocumentCollectionUUID {
+    /** Describes the type of operation represented in this change notification */
+    operationType: 'update';
+    /**
+     * This is only set if `fullDocument` is set to `'updateLookup'`
+     * Contains the point-in-time post-image of the modified document if the
+     * post-image is available and either 'required' or 'whenAvailable' was
+     * specified for the 'fullDocument' option when creating the change stream.
+     */
+    fullDocument?: TSchema;
+    /** Contains a description of updated and removed fields in this operation */
+    updateDescription: UpdateDescription<TSchema>;
+    /** Namespace the update event occurred on */
+    ns: ChangeStreamNameSpace;
+    /**
+     * Contains the pre-image of the modified or deleted document if the
+     * pre-image is available for the change event and either 'required' or
+     * 'whenAvailable' was specified for the 'fullDocumentBeforeChange' option
+     * when creating the change stream. If 'whenAvailable' was specified but the
+     * pre-image is unavailable, this will be explicitly set to null.
+     */
+    fullDocumentBeforeChange?: TSchema;
+}
+
+/** @public */
+export declare interface ClientBulkWriteError {
+    code: number;
+    message: string;
+}
+
+/**
+ * A mapping of namespace strings to collections schemas.
+ * @public
+ *
+ * @example
+ * ```ts
+ * type MongoDBSchemas = {
+ *   'db.books': Book;
+ *   'db.authors': Author;
+ * }
+ *
+ * const model: ClientBulkWriteModel<MongoDBSchemas> = {
+ *   namespace: 'db.books'
+ *   name: 'insertOne',
+ *   document: { title: 'Practical MongoDB Aggregations', authorName: 3 } // error `authorName` cannot be number
+ * };
+ * ```
+ *
+ * The type of the `namespace` field narrows other parts of the BulkWriteModel to use the correct schema for type assertions.
+ *
+ */
+export declare type ClientBulkWriteModel<SchemaMap extends Record<string, Document> = Record<string, Document>> = {
+    [Namespace in keyof SchemaMap]: AnyClientBulkWriteModel<SchemaMap[Namespace]> & {
+        namespace: Namespace;
+    };
+}[keyof SchemaMap];
+
+/** @public */
+export declare interface ClientBulkWriteOptions extends CommandOperationOptions {
+    /**
+     * If true, when an insert fails, don't execute the remaining writes.
+     * If false, continue with remaining inserts when one fails.
+     * @defaultValue `true` - inserts are ordered by default
+     */
+    ordered?: boolean;
+    /**
+     * Allow driver to bypass schema validation.
+     * @defaultValue `false` - documents will be validated by default
+     **/
+    bypassDocumentValidation?: boolean;
+    /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+    let?: Document;
+    /**
+     * Whether detailed results for each successful operation should be included in the returned
+     * BulkWriteResult.
+     */
+    verboseResults?: boolean;
+}
+
+/** @public */
+export declare interface ClientBulkWriteResult {
+    /**
+     * Whether the bulk write was acknowledged.
+     */
+    readonly acknowledged: boolean;
+    /**
+     * The total number of documents inserted across all insert operations.
+     */
+    readonly insertedCount: number;
+    /**
+     * The total number of documents upserted across all update operations.
+     */
+    readonly upsertedCount: number;
+    /**
+     * The total number of documents matched across all update operations.
+     */
+    readonly matchedCount: number;
+    /**
+     * The total number of documents modified across all update operations.
+     */
+    readonly modifiedCount: number;
+    /**
+     * The total number of documents deleted across all delete operations.
+     */
+    readonly deletedCount: number;
+    /**
+     * The results of each individual insert operation that was successfully performed.
+     */
+    readonly insertResults?: ReadonlyMap<number, ClientInsertOneResult>;
+    /**
+     * The results of each individual update operation that was successfully performed.
+     */
+    readonly updateResults?: ReadonlyMap<number, ClientUpdateResult>;
+    /**
+     * The results of each individual delete operation that was successfully performed.
+     */
+    readonly deleteResults?: ReadonlyMap<number, ClientDeleteResult>;
+}
+
+/** @public */
+export declare interface ClientDeleteManyModel<TSchema> extends ClientWriteModel {
+    name: 'deleteMany';
+    /**
+     * The filter used to determine if a document should be deleted.
+     * For a deleteMany operation, all matches are removed.
+     */
+    filter: Filter<TSchema>;
+    /** Specifies a collation. */
+    collation?: CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: Hint;
+}
+
+/** @public */
+export declare interface ClientDeleteOneModel<TSchema> extends ClientWriteModel {
+    name: 'deleteOne';
+    /**
+     * The filter used to determine if a document should be deleted.
+     * For a deleteOne operation, the first match is removed.
+     */
+    filter: Filter<TSchema>;
+    /** Specifies a collation. */
+    collation?: CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: Hint;
+}
+
+/** @public */
+export declare interface ClientDeleteResult {
+    /**
+     * The number of documents that were deleted.
+     */
+    deletedCount: number;
+}
+
+/**
+ * @public
+ * The public interface for explicit in-use encryption
+ */
+export declare class ClientEncryption {
+    /* Excluded from this release type: _client */
+    /* Excluded from this release type: _keyVaultNamespace */
+    /* Excluded from this release type: _keyVaultClient */
+    /* Excluded from this release type: _proxyOptions */
+    /* Excluded from this release type: _tlsOptions */
+    /* Excluded from this release type: _kmsProviders */
+    /* Excluded from this release type: _timeoutMS */
+    /* Excluded from this release type: _mongoCrypt */
+    /* Excluded from this release type: getMongoCrypt */
+    /**
+     * Create a new encryption instance
+     *
+     * @example
+     * ```ts
+     * new ClientEncryption(mongoClient, {
+     *   keyVaultNamespace: 'client.encryption',
+     *   kmsProviders: {
+     *     local: {
+     *       key: masterKey // The master key used for encryption/decryption. A 96-byte long Buffer
+     *     }
+     *   }
+     * });
+     * ```
+     *
+     * @example
+     * ```ts
+     * new ClientEncryption(mongoClient, {
+     *   keyVaultNamespace: 'client.encryption',
+     *   kmsProviders: {
+     *     aws: {
+     *       accessKeyId: AWS_ACCESS_KEY,
+     *       secretAccessKey: AWS_SECRET_KEY
+     *     }
+     *   }
+     * });
+     * ```
+     */
+    constructor(client: MongoClient, options: ClientEncryptionOptions);
+    /**
+     * Creates a data key used for explicit encryption and inserts it into the key vault namespace
+     *
+     * @example
+     * ```ts
+     * // Using async/await to create a local key
+     * const dataKeyId = await clientEncryption.createDataKey('local');
+     * ```
+     *
+     * @example
+     * ```ts
+     * // Using async/await to create an aws key
+     * const dataKeyId = await clientEncryption.createDataKey('aws', {
+     *   masterKey: {
+     *     region: 'us-east-1',
+     *     key: 'xxxxxxxxxxxxxx' // CMK ARN here
+     *   }
+     * });
+     * ```
+     *
+     * @example
+     * ```ts
+     * // Using async/await to create an aws key with a keyAltName
+     * const dataKeyId = await clientEncryption.createDataKey('aws', {
+     *   masterKey: {
+     *     region: 'us-east-1',
+     *     key: 'xxxxxxxxxxxxxx' // CMK ARN here
+     *   },
+     *   keyAltNames: [ 'mySpecialKey' ]
+     * });
+     * ```
+     */
+    createDataKey(provider: ClientEncryptionDataKeyProvider, options?: ClientEncryptionCreateDataKeyProviderOptions): Promise<UUID>;
+    /**
+     * Searches the keyvault for any data keys matching the provided filter.  If there are matches, rewrapManyDataKey then attempts to re-wrap the data keys using the provided options.
+     *
+     * If no matches are found, then no bulk write is performed.
+     *
+     * @example
+     * ```ts
+     * // rewrapping all data data keys (using a filter that matches all documents)
+     * const filter = {};
+     *
+     * const result = await clientEncryption.rewrapManyDataKey(filter);
+     * if (result.bulkWriteResult != null) {
+     *  // keys were re-wrapped, results will be available in the bulkWrite object.
+     * }
+     * ```
+     *
+     * @example
+     * ```ts
+     * // attempting to rewrap all data keys with no matches
+     * const filter = { _id: new Binary() } // assume _id matches no documents in the database
+     * const result = await clientEncryption.rewrapManyDataKey(filter);
+     *
+     * if (result.bulkWriteResult == null) {
+     *  // no keys matched, `bulkWriteResult` does not exist on the result object
+     * }
+     * ```
+     */
+    rewrapManyDataKey(filter: Filter<DataKey>, options: ClientEncryptionRewrapManyDataKeyProviderOptions): Promise<{
+        bulkWriteResult?: BulkWriteResult;
+    }>;
+    /**
+     * Deletes the key with the provided id from the keyvault, if it exists.
+     *
+     * @example
+     * ```ts
+     * // delete a key by _id
+     * const id = new Binary(); // id is a bson binary subtype 4 object
+     * const { deletedCount } = await clientEncryption.deleteKey(id);
+     *
+     * if (deletedCount != null && deletedCount > 0) {
+     *   // successful deletion
+     * }
+     * ```
+     *
+     */
+    deleteKey(_id: Binary): Promise<DeleteResult>;
+    /**
+     * Finds all the keys currently stored in the keyvault.
+     *
+     * This method will not throw.
+     *
+     * @returns a FindCursor over all keys in the keyvault.
+     * @example
+     * ```ts
+     * // fetching all keys
+     * const keys = await clientEncryption.getKeys().toArray();
+     * ```
+     */
+    getKeys(): FindCursor<DataKey>;
+    /**
+     * Finds a key in the keyvault with the specified _id.
+     *
+     * Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents
+     * match the id.  The promise rejects with an error if an error is thrown.
+     * @example
+     * ```ts
+     * // getting a key by id
+     * const id = new Binary(); // id is a bson binary subtype 4 object
+     * const key = await clientEncryption.getKey(id);
+     * if (!key) {
+     *  // key is null if there was no matching key
+     * }
+     * ```
+     */
+    getKey(_id: Binary): Promise<DataKey | null>;
+    /**
+     * Finds a key in the keyvault which has the specified keyAltName.
+     *
+     * @param keyAltName - a keyAltName to search for a key
+     * @returns Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents
+     * match the keyAltName.  The promise rejects with an error if an error is thrown.
+     * @example
+     * ```ts
+     * // get a key by alt name
+     * const keyAltName = 'keyAltName';
+     * const key = await clientEncryption.getKeyByAltName(keyAltName);
+     * if (!key) {
+     *  // key is null if there is no matching key
+     * }
+     * ```
+     */
+    getKeyByAltName(keyAltName: string): Promise<WithId<DataKey> | null>;
+    /**
+     * Adds a keyAltName to a key identified by the provided _id.
+     *
+     * This method resolves to/returns the *old* key value (prior to adding the new altKeyName).
+     *
+     * @param _id - The id of the document to update.
+     * @param keyAltName - a keyAltName to search for a key
+     * @returns Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents
+     * match the id.  The promise rejects with an error if an error is thrown.
+     * @example
+     * ```ts
+     * // adding an keyAltName to a data key
+     * const id = new Binary();  // id is a bson binary subtype 4 object
+     * const keyAltName = 'keyAltName';
+     * const oldKey = await clientEncryption.addKeyAltName(id, keyAltName);
+     * if (!oldKey) {
+     *  // null is returned if there is no matching document with an id matching the supplied id
+     * }
+     * ```
+     */
+    addKeyAltName(_id: Binary, keyAltName: string): Promise<WithId<DataKey> | null>;
+    /**
+     * Adds a keyAltName to a key identified by the provided _id.
+     *
+     * This method resolves to/returns the *old* key value (prior to removing the new altKeyName).
+     *
+     * If the removed keyAltName is the last keyAltName for that key, the `altKeyNames` property is unset from the document.
+     *
+     * @param _id - The id of the document to update.
+     * @param keyAltName - a keyAltName to search for a key
+     * @returns Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents
+     * match the id.  The promise rejects with an error if an error is thrown.
+     * @example
+     * ```ts
+     * // removing a key alt name from a data key
+     * const id = new Binary();  // id is a bson binary subtype 4 object
+     * const keyAltName = 'keyAltName';
+     * const oldKey = await clientEncryption.removeKeyAltName(id, keyAltName);
+     *
+     * if (!oldKey) {
+     *  // null is returned if there is no matching document with an id matching the supplied id
+     * }
+     * ```
+     */
+    removeKeyAltName(_id: Binary, keyAltName: string): Promise<WithId<DataKey> | null>;
+    /**
+     * A convenience method for creating an encrypted collection.
+     * This method will create data keys for any encryptedFields that do not have a `keyId` defined
+     * and then create a new collection with the full set of encryptedFields.
+     *
+     * @param db - A Node.js driver Db object with which to create the collection
+     * @param name - The name of the collection to be created
+     * @param options - Options for createDataKey and for createCollection
+     * @returns created collection and generated encryptedFields
+     * @throws MongoCryptCreateDataKeyError - If part way through the process a createDataKey invocation fails, an error will be rejected that has the partial `encryptedFields` that were created.
+     * @throws MongoCryptCreateEncryptedCollectionError - If creating the collection fails, an error will be rejected that has the entire `encryptedFields` that were created.
+     */
+    createEncryptedCollection<TSchema extends Document = Document>(db: Db, name: string, options: {
+        provider: ClientEncryptionDataKeyProvider;
+        createCollectionOptions: Omit<CreateCollectionOptions, 'encryptedFields'> & {
+            encryptedFields: Document;
+        };
+        masterKey?: AWSEncryptionKeyOptions | AzureEncryptionKeyOptions | GCPEncryptionKeyOptions;
+    }): Promise<{
+        collection: Collection<TSchema>;
+        encryptedFields: Document;
+    }>;
+    /**
+     * Explicitly encrypt a provided value. Note that either `options.keyId` or `options.keyAltName` must
+     * be specified. Specifying both `options.keyId` and `options.keyAltName` is considered an error.
+     *
+     * @param value - The value that you wish to serialize. Must be of a type that can be serialized into BSON
+     * @param options -
+     * @returns a Promise that either resolves with the encrypted value, or rejects with an error.
+     *
+     * @example
+     * ```ts
+     * // Encryption with async/await api
+     * async function encryptMyData(value) {
+     *   const keyId = await clientEncryption.createDataKey('local');
+     *   return clientEncryption.encrypt(value, { keyId, algorithm: 'AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic' });
+     * }
+     * ```
+     *
+     * @example
+     * ```ts
+     * // Encryption using a keyAltName
+     * async function encryptMyData(value) {
+     *   await clientEncryption.createDataKey('local', { keyAltNames: 'mySpecialKey' });
+     *   return clientEncryption.encrypt(value, { keyAltName: 'mySpecialKey', algorithm: 'AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic' });
+     * }
+     * ```
+     */
+    encrypt(value: unknown, options: ClientEncryptionEncryptOptions): Promise<Binary>;
+    /**
+     * Encrypts a Match Expression or Aggregate Expression to query a range index.
+     *
+     * Only supported when queryType is "range" and algorithm is "Range".
+     *
+     * @param expression - a BSON document of one of the following forms:
+     *  1. A Match Expression of this form:
+     *      `{$and: [{<field>: {$gt: <value1>}}, {<field>: {$lt: <value2> }}]}`
+     *  2. An Aggregate Expression of this form:
+     *      `{$and: [{$gt: [<fieldpath>, <value1>]}, {$lt: [<fieldpath>, <value2>]}]}`
+     *
+     *    `$gt` may also be `$gte`. `$lt` may also be `$lte`.
+     *
+     * @param options -
+     * @returns Returns a Promise that either resolves with the encrypted value or rejects with an error.
+     */
+    encryptExpression(expression: Document, options: ClientEncryptionEncryptOptions): Promise<Binary>;
+    /**
+     * Explicitly decrypt a provided encrypted value
+     *
+     * @param value - An encrypted value
+     * @returns a Promise that either resolves with the decrypted value, or rejects with an error
+     *
+     * @example
+     * ```ts
+     * // Decrypting value with async/await API
+     * async function decryptMyValue(value) {
+     *   return clientEncryption.decrypt(value);
+     * }
+     * ```
+     */
+    decrypt<T = any>(value: Binary): Promise<T>;
+    /* Excluded from this release type: askForKMSCredentials */
+    static get libmongocryptVersion(): string;
+    /* Excluded from this release type: _encrypt */
+}
+
+/**
+ * @public
+ * Options to provide when creating a new data key.
+ */
+export declare interface ClientEncryptionCreateDataKeyProviderOptions {
+    /**
+     * Identifies a new KMS-specific key used to encrypt the new data key
+     */
+    masterKey?: AWSEncryptionKeyOptions | AzureEncryptionKeyOptions | GCPEncryptionKeyOptions | KMIPEncryptionKeyOptions | undefined;
+    /**
+     * An optional list of string alternate names used to reference a key.
+     * If a key is created with alternate names, then encryption may refer to the key by the unique alternate name instead of by _id.
+     */
+    keyAltNames?: string[] | undefined;
+    /** @experimental */
+    keyMaterial?: Buffer | Binary;
+    /* Excluded from this release type: timeoutContext */
+}
+
+/**
+ * @public
+ *
+ * A data key provider.  Allowed values:
+ *
+ * - aws, gcp, local, kmip or azure
+ * - (`mongodb-client-encryption>=6.0.1` only) a named key, in the form of:
+ *    `aws:<name>`, `gcp:<name>`, `local:<name>`, `kmip:<name>`, `azure:<name>`
+ *  where `name` is an alphanumeric string, underscores allowed.
+ */
+export declare type ClientEncryptionDataKeyProvider = keyof KMSProviders;
+
+/**
+ * @public
+ * Options to provide when encrypting data.
+ */
+export declare interface ClientEncryptionEncryptOptions {
+    /**
+     * The algorithm to use for encryption.
+     */
+    algorithm: 'AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic' | 'AEAD_AES_256_CBC_HMAC_SHA_512-Random' | 'Indexed' | 'Unindexed' | 'Range';
+    /**
+     * The id of the Binary dataKey to use for encryption
+     */
+    keyId?: Binary;
+    /**
+     * A unique string name corresponding to an already existing dataKey.
+     */
+    keyAltName?: string;
+    /** The contention factor. */
+    contentionFactor?: bigint | number;
+    /**
+     * The query type.
+     */
+    queryType?: 'equality' | 'range';
+    /** The index options for a Queryable Encryption field supporting "range" queries.*/
+    rangeOptions?: RangeOptions;
+}
+
+/**
+ * @public
+ * Additional settings to provide when creating a new `ClientEncryption` instance.
+ */
+export declare interface ClientEncryptionOptions {
+    /**
+     * The namespace of the key vault, used to store encryption keys
+     */
+    keyVaultNamespace: string;
+    /**
+     * A MongoClient used to fetch keys from a key vault. Defaults to client.
+     */
+    keyVaultClient?: MongoClient | undefined;
+    /**
+     * Options for specific KMS providers to use
+     */
+    kmsProviders?: KMSProviders;
+    /**
+     * Options for specifying a Socks5 proxy to use for connecting to the KMS.
+     */
+    proxyOptions?: ProxyOptions;
+    /**
+     * TLS options for kms providers to use.
+     */
+    tlsOptions?: CSFLEKMSTlsOptions;
+    /**
+     * @experimental
+     *
+     * The timeout setting to be used for all the operations on ClientEncryption.
+     *
+     * When provided, `timeoutMS` is used as the timeout for each operation executed on
+     * the ClientEncryption object.  For example:
+     *
+     * ```typescript
+     * const clientEncryption = new ClientEncryption(client, {
+     *  timeoutMS: 1_000
+     *  kmsProviders: { local: { key: '<KEY>' } }
+     * });
+     *
+     * // `1_000` is used as the timeout for createDataKey call
+     * await clientEncryption.createDataKey('local');
+     * ```
+     *
+     * If `timeoutMS` is configured on the provided client, the client's `timeoutMS` value
+     * will be used unless `timeoutMS` is also provided as a client encryption option.
+     *
+     * ```typescript
+     * const client = new MongoClient('<uri>', { timeoutMS: 2_000 });
+     *
+     * // timeoutMS is set to 1_000 on clientEncryption
+     * const clientEncryption = new ClientEncryption(client, {
+     *  timeoutMS: 1_000
+     *  kmsProviders: { local: { key: '<KEY>' } }
+     * });
+     * ```
+     */
+    timeoutMS?: number;
+}
+
+/**
+ * @public
+ * @experimental
+ */
+export declare interface ClientEncryptionRewrapManyDataKeyProviderOptions {
+    provider: ClientEncryptionDataKeyProvider;
+    masterKey?: AWSEncryptionKeyOptions | AzureEncryptionKeyOptions | GCPEncryptionKeyOptions | KMIPEncryptionKeyOptions | undefined;
+}
+
+/**
+ * @public
+ * @experimental
+ */
+export declare interface ClientEncryptionRewrapManyDataKeyResult {
+    /** The result of rewrapping data keys. If unset, no keys matched the filter. */
+    bulkWriteResult?: BulkWriteResult;
+}
+
+/**
+ * @public
+ *
+ * Socket options to use for KMS requests.
+ */
+export declare type ClientEncryptionSocketOptions = Pick<MongoClientOptions, 'autoSelectFamily' | 'autoSelectFamilyAttemptTimeout'>;
+
+/**
+ * @public
+ *
+ * TLS options to use when connecting. The spec specifically calls out which insecure
+ * tls options are not allowed:
+ *
+ *  - tlsAllowInvalidCertificates
+ *  - tlsAllowInvalidHostnames
+ *  - tlsInsecure
+ *
+ * These options are not included in the type, and are ignored if provided.
+ */
+export declare type ClientEncryptionTlsOptions = Pick<MongoClientOptions, 'tlsCAFile' | 'tlsCertificateKeyFile' | 'tlsCertificateKeyFilePassword'>;
+
+/** @public */
+export declare interface ClientInsertOneModel<TSchema> extends ClientWriteModel {
+    name: 'insertOne';
+    /** The document to insert. */
+    document: OptionalId<TSchema>;
+}
+
+/** @public */
+export declare interface ClientInsertOneResult {
+    /**
+     * The _id of the inserted document.
+     */
+    insertedId: any;
+}
+
+/**
+ * @public
+ * @see https://github.com/mongodb/specifications/blob/master/source/mongodb-handshake/handshake.md#hello-command
+ */
+export declare interface ClientMetadata {
+    driver: {
+        name: string;
+        version: string;
+    };
+    os: {
+        type: string;
+        name?: NodeJS.Platform;
+        architecture?: string;
+        version?: string;
+    };
+    platform: string;
+    application?: {
+        name: string;
+    };
+    /** FaaS environment information */
+    env?: {
+        name: 'aws.lambda' | 'gcp.func' | 'azure.func' | 'vercel';
+        timeout_sec?: Int32;
+        memory_mb?: Int32;
+        region?: string;
+        url?: string;
+    };
+}
+
+/** @public */
+export declare interface ClientMetadataOptions {
+    driverInfo?: {
+        name?: string;
+        version?: string;
+        platform?: string;
+    };
+    appName?: string;
+}
+
+/** @public */
+export declare interface ClientReplaceOneModel<TSchema> extends ClientWriteModel {
+    name: 'replaceOne';
+    /**
+     * The filter used to determine if a document should be replaced.
+     * For a replaceOne operation, the first match is replaced.
+     */
+    filter: Filter<TSchema>;
+    /** The document with which to replace the matched document. */
+    replacement: WithoutId<TSchema>;
+    /** Specifies a collation. */
+    collation?: CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: Hint;
+    /** When true, creates a new document if no document matches the query. */
+    upsert?: boolean;
+}
+
+/**
+ * A class representing a client session on the server
+ *
+ * NOTE: not meant to be instantiated directly.
+ * @public
+ */
+export declare class ClientSession extends TypedEventEmitter<ClientSessionEvents> implements AsyncDisposable_2 {
+    /* Excluded from this release type: client */
+    /* Excluded from this release type: sessionPool */
+    hasEnded: boolean;
+    clientOptions: MongoOptions;
+    supports: {
+        causalConsistency: boolean;
+    };
+    clusterTime?: ClusterTime;
+    operationTime?: Timestamp;
+    explicit: boolean;
+    /* Excluded from this release type: owner */
+    defaultTransactionOptions: TransactionOptions;
+    transaction: Transaction;
+    /* Excluded from this release type: commitAttempted */
+    /* Excluded from this release type: [kServerSession] */
+    /* Excluded from this release type: [kSnapshotTime] */
+    /* Excluded from this release type: [kSnapshotEnabled] */
+    /* Excluded from this release type: [kPinnedConnection] */
+    /* Excluded from this release type: [kTxnNumberIncrement] */
+    /**
+     * @experimental
+     * Specifies the time an operation in a given `ClientSession` will run until it throws a timeout error
+     */
+    timeoutMS?: number;
+    /* Excluded from this release type: timeoutContext */
+    /* Excluded from this release type: __constructor */
+    /** The server id associated with this session */
+    get id(): ServerSessionId | undefined;
+    get serverSession(): ServerSession;
+    /** Whether or not this session is configured for snapshot reads */
+    get snapshotEnabled(): boolean;
+    get loadBalanced(): boolean;
+    /* Excluded from this release type: pinnedConnection */
+    /* Excluded from this release type: pin */
+    /* Excluded from this release type: unpin */
+    get isPinned(): boolean;
+    /**
+     * Frees any client-side resources held by the current session.  If a session is in a transaction,
+     * the transaction is aborted.
+     *
+     * Does not end the session on the server.
+     *
+     * @param options - Optional settings. Currently reserved for future use
+     */
+    endSession(options?: EndSessionOptions): Promise<void>;
+    /* Excluded from this release type: [Symbol.asyncDispose] */
+    /* Excluded from this release type: asyncDispose */
+    /**
+     * Advances the operationTime for a ClientSession.
+     *
+     * @param operationTime - the `BSON.Timestamp` of the operation type it is desired to advance to
+     */
+    advanceOperationTime(operationTime: Timestamp): void;
+    /**
+     * Advances the clusterTime for a ClientSession to the provided clusterTime of another ClientSession
+     *
+     * @param clusterTime - the $clusterTime returned by the server from another session in the form of a document containing the `BSON.Timestamp` clusterTime and signature
+     */
+    advanceClusterTime(clusterTime: ClusterTime): void;
+    /**
+     * Used to determine if this session equals another
+     *
+     * @param session - The session to compare to
+     */
+    equals(session: ClientSession): boolean;
+    /**
+     * Increment the transaction number on the internal ServerSession
+     *
+     * @privateRemarks
+     * This helper increments a value stored on the client session that will be
+     * added to the serverSession's txnNumber upon applying it to a command.
+     * This is because the serverSession is lazily acquired after a connection is obtained
+     */
+    incrementTransactionNumber(): void;
+    /** @returns whether this session is currently in a transaction or not */
+    inTransaction(): boolean;
+    /**
+     * Starts a new transaction with the given options.
+     *
+     * @remarks
+     * **IMPORTANT**: Running operations in parallel is not supported during a transaction. The use of `Promise.all`,
+     * `Promise.allSettled`, `Promise.race`, etc to parallelize operations inside a transaction is
+     * undefined behaviour.
+     *
+     * @param options - Options for the transaction
+     */
+    startTransaction(options?: TransactionOptions): void;
+    /**
+     * Commits the currently active transaction in this session.
+     *
+     * @param options - Optional options, can be used to override `defaultTimeoutMS`.
+     */
+    commitTransaction(options?: {
+        timeoutMS?: number;
+    }): Promise<void>;
+    /**
+     * Aborts the currently active transaction in this session.
+     *
+     * @param options - Optional options, can be used to override `defaultTimeoutMS`.
+     */
+    abortTransaction(options?: {
+        timeoutMS?: number;
+    }): Promise<void>;
+    /* Excluded from this release type: abortTransaction */
+    /**
+     * This is here to ensure that ClientSession is never serialized to BSON.
+     */
+    toBSON(): never;
+    /**
+     * Starts a transaction and runs a provided function, ensuring the commitTransaction is always attempted when all operations run in the function have completed.
+     *
+     * **IMPORTANT:** This method requires the function passed in to return a Promise. That promise must be made by `await`-ing all operations in such a way that rejections are propagated to the returned promise.
+     *
+     * **IMPORTANT:** Running operations in parallel is not supported during a transaction. The use of `Promise.all`,
+     * `Promise.allSettled`, `Promise.race`, etc to parallelize operations inside a transaction is
+     * undefined behaviour.
+     *
+     * **IMPORTANT:** When running an operation inside a `withTransaction` callback, if it is not
+     * provided the explicit session in its options, it will not be part of the transaction and it will not respect timeoutMS.
+     *
+     *
+     * @remarks
+     * - If all operations successfully complete and the `commitTransaction` operation is successful, then the provided function will return the result of the provided function.
+     * - If the transaction is unable to complete or an error is thrown from within the provided function, then the provided function will throw an error.
+     *   - If the transaction is manually aborted within the provided function it will not throw.
+     * - If the driver needs to attempt to retry the operations, the provided function may be called multiple times.
+     *
+     * Checkout a descriptive example here:
+     * @see https://www.mongodb.com/blog/post/quick-start-nodejs--mongodb--how-to-implement-transactions
+     *
+     * If a command inside withTransaction fails:
+     * - It may cause the transaction on the server to be aborted.
+     * - This situation is normally handled transparently by the driver.
+     * - However, if the application catches such an error and does not rethrow it, the driver will not be able to determine whether the transaction was aborted or not.
+     * - The driver will then retry the transaction indefinitely.
+     *
+     * To avoid this situation, the application must not silently handle errors within the provided function.
+     * If the application needs to handle errors within, it must await all operations such that if an operation is rejected it becomes the rejection of the callback function passed into withTransaction.
+     *
+     * @param fn - callback to run within a transaction
+     * @param options - optional settings for the transaction
+     * @returns A raw command response or undefined
+     */
+    withTransaction<T = any>(fn: WithTransactionCallback<T>, options?: TransactionOptions & {
+        /**
+         * Configures a timeoutMS expiry for the entire withTransactionCallback.
+         *
+         * @remarks
+         * - The remaining timeout will not be applied to callback operations that do not use the ClientSession.
+         * - Overriding timeoutMS for operations executed using the explicit session inside the provided callback will result in a client-side error.
+         */
+        timeoutMS?: number;
+    }): Promise<T>;
+}
+
+/** @public */
+export declare type ClientSessionEvents = {
+    ended(session: ClientSession): void;
+};
+
+/** @public */
+export declare interface ClientSessionOptions {
+    /** Whether causal consistency should be enabled on this session */
+    causalConsistency?: boolean;
+    /** Whether all read operations should be read from the same snapshot for this session (NOTE: not compatible with `causalConsistency=true`) */
+    snapshot?: boolean;
+    /** The default TransactionOptions to use for transactions started on this session. */
+    defaultTransactionOptions?: TransactionOptions;
+    /**
+     * @public
+     * @experimental
+     * An overriding timeoutMS value to use for a client-side timeout.
+     * If not provided the session uses the timeoutMS specified on the MongoClient.
+     */
+    defaultTimeoutMS?: number;
+    /* Excluded from this release type: owner */
+    /* Excluded from this release type: explicit */
+    /* Excluded from this release type: initialClusterTime */
+}
+
+/** @public */
+export declare interface ClientUpdateManyModel<TSchema> extends ClientWriteModel {
+    name: 'updateMany';
+    /**
+     * The filter used to determine if a document should be updated.
+     * For an updateMany operation, all matches are updated.
+     */
+    filter: Filter<TSchema>;
+    /**
+     * The modifications to apply. The value can be either:
+     * UpdateFilter<Document> - A document that contains update operator expressions,
+     * Document[] - an aggregation pipeline.
+     */
+    update: UpdateFilter<TSchema> | Document[];
+    /** A set of filters specifying to which array elements an update should apply. */
+    arrayFilters?: Document[];
+    /** Specifies a collation. */
+    collation?: CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: Hint;
+    /** When true, creates a new document if no document matches the query. */
+    upsert?: boolean;
+}
+
+/** @public */
+export declare interface ClientUpdateOneModel<TSchema> extends ClientWriteModel {
+    name: 'updateOne';
+    /**
+     * The filter used to determine if a document should be updated.
+     * For an updateOne operation, the first match is updated.
+     */
+    filter: Filter<TSchema>;
+    /**
+     * The modifications to apply. The value can be either:
+     * UpdateFilter<Document> - A document that contains update operator expressions,
+     * Document[] - an aggregation pipeline.
+     */
+    update: UpdateFilter<TSchema> | Document[];
+    /** A set of filters specifying to which array elements an update should apply. */
+    arrayFilters?: Document[];
+    /** Specifies a collation. */
+    collation?: CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: Hint;
+    /** When true, creates a new document if no document matches the query. */
+    upsert?: boolean;
+}
+
+/** @public */
+export declare interface ClientUpdateResult {
+    /**
+     * The number of documents that matched the filter.
+     */
+    matchedCount: number;
+    /**
+     * The number of documents that were modified.
+     */
+    modifiedCount: number;
+    /**
+     * The _id field of the upserted document if an upsert occurred.
+     *
+     * It MUST be possible to discern between a BSON Null upserted ID value and this field being
+     * unset. If necessary, drivers MAY add a didUpsert boolean field to differentiate between
+     * these two cases.
+     */
+    upsertedId?: any;
+    /**
+     * Determines if the upsert did include an _id, which includes the case of the _id being null.
+     */
+    didUpsert: boolean;
+}
+
+/** @public */
+export declare interface ClientWriteModel {
+    /**
+     * The namespace for the write.
+     *
+     * A namespace is a combination of the database name and the name of the collection: `<database-name>.<collection>`.
+     * All documents belong to a namespace.
+     *
+     * @see https://www.mongodb.com/docs/manual/reference/limits/#std-label-faq-dev-namespace
+     */
+    namespace: string;
+}
+
+/**
+ * @public
+ * @deprecated This interface is deprecated and will be removed in a future release as it is not used
+ * in the driver
+ */
+export declare interface CloseOptions {
+    force?: boolean;
+}
+
+/** @public
+ * Configuration options for clustered collections
+ * @see https://www.mongodb.com/docs/manual/core/clustered-collections/
+ */
+export declare interface ClusteredCollectionOptions extends Document {
+    name?: string;
+    key: Document;
+    unique: boolean;
+}
+
+/**
+ * @public
+ * Gossiped in component for the cluster time tracking the state of user databases
+ * across the cluster. It may optionally include a signature identifying the process that
+ * generated such a value.
+ */
+export declare interface ClusterTime {
+    clusterTime: Timestamp;
+    /** Used to validate the identity of a request or response's ClusterTime. */
+    signature?: {
+        hash: Binary;
+        keyId: Long;
+    };
+}
+
+export { Code }
+
+/** @public */
+export declare interface CollationOptions {
+    locale: string;
+    caseLevel?: boolean;
+    caseFirst?: string;
+    strength?: number;
+    numericOrdering?: boolean;
+    alternate?: string;
+    maxVariable?: string;
+    backwards?: boolean;
+    normalization?: boolean;
+}
+
+/**
+ * The **Collection** class is an internal class that embodies a MongoDB collection
+ * allowing for insert/find/update/delete and other command operation on that MongoDB collection.
+ *
+ * **COLLECTION Cannot directly be instantiated**
+ * @public
+ *
+ * @example
+ * ```ts
+ * import { MongoClient } from 'mongodb';
+ *
+ * interface Pet {
+ *   name: string;
+ *   kind: 'dog' | 'cat' | 'fish';
+ * }
+ *
+ * const client = new MongoClient('mongodb://localhost:27017');
+ * const pets = client.db().collection<Pet>('pets');
+ *
+ * const petCursor = pets.find();
+ *
+ * for await (const pet of petCursor) {
+ *   console.log(`${pet.name} is a ${pet.kind}!`);
+ * }
+ * ```
+ */
+export declare class Collection<TSchema extends Document = Document> {
+    /* Excluded from this release type: s */
+    /* Excluded from this release type: client */
+    /* Excluded from this release type: __constructor */
+    /**
+     * The name of the database this collection belongs to
+     */
+    get dbName(): string;
+    /**
+     * The name of this collection
+     */
+    get collectionName(): string;
+    /**
+     * The namespace of this collection, in the format `${this.dbName}.${this.collectionName}`
+     */
+    get namespace(): string;
+    /* Excluded from this release type: fullNamespace */
+    /**
+     * The current readConcern of the collection. If not explicitly defined for
+     * this collection, will be inherited from the parent DB
+     */
+    get readConcern(): ReadConcern | undefined;
+    /**
+     * The current readPreference of the collection. If not explicitly defined for
+     * this collection, will be inherited from the parent DB
+     */
+    get readPreference(): ReadPreference | undefined;
+    get bsonOptions(): BSONSerializeOptions;
+    /**
+     * The current writeConcern of the collection. If not explicitly defined for
+     * this collection, will be inherited from the parent DB
+     */
+    get writeConcern(): WriteConcern | undefined;
+    /** The current index hint for the collection */
+    get hint(): Hint | undefined;
+    set hint(v: Hint | undefined);
+    get timeoutMS(): number | undefined;
+    /**
+     * Inserts a single document into MongoDB. If documents passed in do not contain the **_id** field,
+     * one will be added to each of the documents missing it by the driver, mutating the document. This behavior
+     * can be overridden by setting the **forceServerObjectId** flag.
+     *
+     * @param doc - The document to insert
+     * @param options - Optional settings for the command
+     */
+    insertOne(doc: OptionalUnlessRequiredId<TSchema>, options?: InsertOneOptions): Promise<InsertOneResult<TSchema>>;
+    /**
+     * Inserts an array of documents into MongoDB. If documents passed in do not contain the **_id** field,
+     * one will be added to each of the documents missing it by the driver, mutating the document. This behavior
+     * can be overridden by setting the **forceServerObjectId** flag.
+     *
+     * @param docs - The documents to insert
+     * @param options - Optional settings for the command
+     */
+    insertMany(docs: ReadonlyArray<OptionalUnlessRequiredId<TSchema>>, options?: BulkWriteOptions): Promise<InsertManyResult<TSchema>>;
+    /**
+     * Perform a bulkWrite operation without a fluent API
+     *
+     * Legal operation types are
+     * - `insertOne`
+     * - `replaceOne`
+     * - `updateOne`
+     * - `updateMany`
+     * - `deleteOne`
+     * - `deleteMany`
+     *
+     * If documents passed in do not contain the **_id** field,
+     * one will be added to each of the documents missing it by the driver, mutating the document. This behavior
+     * can be overridden by setting the **forceServerObjectId** flag.
+     *
+     * @param operations - Bulk operations to perform
+     * @param options - Optional settings for the command
+     * @throws MongoDriverError if operations is not an array
+     */
+    bulkWrite(operations: ReadonlyArray<AnyBulkWriteOperation<TSchema>>, options?: BulkWriteOptions): Promise<BulkWriteResult>;
+    /**
+     * Update a single document in a collection
+     *
+     * The value of `update` can be either:
+     * - UpdateFilter<TSchema> - A document that contains update operator expressions,
+     * - Document[] - an aggregation pipeline.
+     *
+     * @param filter - The filter used to select the document to update
+     * @param update - The modifications to apply
+     * @param options - Optional settings for the command
+     */
+    updateOne(filter: Filter<TSchema>, update: UpdateFilter<TSchema> | Document[], options?: UpdateOptions): Promise<UpdateResult<TSchema>>;
+    /**
+     * Replace a document in a collection with another document
+     *
+     * @param filter - The filter used to select the document to replace
+     * @param replacement - The Document that replaces the matching document
+     * @param options - Optional settings for the command
+     */
+    replaceOne(filter: Filter<TSchema>, replacement: WithoutId<TSchema>, options?: ReplaceOptions): Promise<UpdateResult<TSchema> | Document>;
+    /**
+     * Update multiple documents in a collection
+     *
+     * The value of `update` can be either:
+     * - UpdateFilter<TSchema> - A document that contains update operator expressions,
+     * - Document[] - an aggregation pipeline.
+     *
+     * @param filter - The filter used to select the document to update
+     * @param update - The modifications to apply
+     * @param options - Optional settings for the command
+     */
+    updateMany(filter: Filter<TSchema>, update: UpdateFilter<TSchema> | Document[], options?: UpdateOptions): Promise<UpdateResult<TSchema>>;
+    /**
+     * Delete a document from a collection
+     *
+     * @param filter - The filter used to select the document to remove
+     * @param options - Optional settings for the command
+     */
+    deleteOne(filter?: Filter<TSchema>, options?: DeleteOptions): Promise<DeleteResult>;
+    /**
+     * Delete multiple documents from a collection
+     *
+     * @param filter - The filter used to select the documents to remove
+     * @param options - Optional settings for the command
+     */
+    deleteMany(filter?: Filter<TSchema>, options?: DeleteOptions): Promise<DeleteResult>;
+    /**
+     * Rename the collection.
+     *
+     * @remarks
+     * This operation does not inherit options from the Db or MongoClient.
+     *
+     * @param newName - New name of of the collection.
+     * @param options - Optional settings for the command
+     */
+    rename(newName: string, options?: RenameOptions): Promise<Collection>;
+    /**
+     * Drop the collection from the database, removing it permanently. New accesses will create a new collection.
+     *
+     * @param options - Optional settings for the command
+     */
+    drop(options?: DropCollectionOptions): Promise<boolean>;
+    /**
+     * Fetches the first document that matches the filter
+     *
+     * @param filter - Query for find Operation
+     * @param options - Optional settings for the command
+     */
+    findOne(): Promise<WithId<TSchema> | null>;
+    findOne(filter: Filter<TSchema>): Promise<WithId<TSchema> | null>;
+    findOne(filter: Filter<TSchema>, options: Omit<FindOptions, 'timeoutMode'>): Promise<WithId<TSchema> | null>;
+    findOne<T = TSchema>(): Promise<T | null>;
+    findOne<T = TSchema>(filter: Filter<TSchema>): Promise<T | null>;
+    findOne<T = TSchema>(filter: Filter<TSchema>, options?: Omit<FindOptions, 'timeoutMode'>): Promise<T | null>;
+    /**
+     * Creates a cursor for a filter that can be used to iterate over results from MongoDB
+     *
+     * @param filter - The filter predicate. If unspecified, then all documents in the collection will match the predicate
+     */
+    find(): FindCursor<WithId<TSchema>>;
+    find(filter: Filter<TSchema>, options?: FindOptions): FindCursor<WithId<TSchema>>;
+    find<T extends Document>(filter: Filter<TSchema>, options?: FindOptions): FindCursor<T>;
+    /**
+     * Returns the options of the collection.
+     *
+     * @param options - Optional settings for the command
+     */
+    options(options?: OperationOptions): Promise<Document>;
+    /**
+     * Returns if the collection is a capped collection
+     *
+     * @param options - Optional settings for the command
+     */
+    isCapped(options?: OperationOptions): Promise<boolean>;
+    /**
+     * Creates an index on the db and collection collection.
+     *
+     * @param indexSpec - The field name or index specification to create an index for
+     * @param options - Optional settings for the command
+     *
+     * @example
+     * ```ts
+     * const collection = client.db('foo').collection('bar');
+     *
+     * await collection.createIndex({ a: 1, b: -1 });
+     *
+     * // Alternate syntax for { c: 1, d: -1 } that ensures order of indexes
+     * await collection.createIndex([ [c, 1], [d, -1] ]);
+     *
+     * // Equivalent to { e: 1 }
+     * await collection.createIndex('e');
+     *
+     * // Equivalent to { f: 1, g: 1 }
+     * await collection.createIndex(['f', 'g'])
+     *
+     * // Equivalent to { h: 1, i: -1 }
+     * await collection.createIndex([ { h: 1 }, { i: -1 } ]);
+     *
+     * // Equivalent to { j: 1, k: -1, l: 2d }
+     * await collection.createIndex(['j', ['k', -1], { l: '2d' }])
+     * ```
+     */
+    createIndex(indexSpec: IndexSpecification, options?: CreateIndexesOptions): Promise<string>;
+    /**
+     * Creates multiple indexes in the collection, this method is only supported for
+     * MongoDB 2.6 or higher. Earlier version of MongoDB will throw a command not supported
+     * error.
+     *
+     * **Note**: Unlike {@link Collection#createIndex| createIndex}, this function takes in raw index specifications.
+     * Index specifications are defined {@link https://www.mongodb.com/docs/manual/reference/command/createIndexes/| here}.
+     *
+     * @param indexSpecs - An array of index specifications to be created
+     * @param options - Optional settings for the command
+     *
+     * @example
+     * ```ts
+     * const collection = client.db('foo').collection('bar');
+     * await collection.createIndexes([
+     *   // Simple index on field fizz
+     *   {
+     *     key: { fizz: 1 },
+     *   }
+     *   // wildcard index
+     *   {
+     *     key: { '$**': 1 }
+     *   },
+     *   // named index on darmok and jalad
+     *   {
+     *     key: { darmok: 1, jalad: -1 }
+     *     name: 'tanagra'
+     *   }
+     * ]);
+     * ```
+     */
+    createIndexes(indexSpecs: IndexDescription[], options?: CreateIndexesOptions): Promise<string[]>;
+    /**
+     * Drops an index from this collection.
+     *
+     * @param indexName - Name of the index to drop.
+     * @param options - Optional settings for the command
+     */
+    dropIndex(indexName: string, options?: DropIndexesOptions): Promise<Document>;
+    /**
+     * Drops all indexes from this collection.
+     *
+     * @param options - Optional settings for the command
+     */
+    dropIndexes(options?: DropIndexesOptions): Promise<boolean>;
+    /**
+     * Get the list of all indexes information for the collection.
+     *
+     * @param options - Optional settings for the command
+     */
+    listIndexes(options?: ListIndexesOptions): ListIndexesCursor;
+    /**
+     * Checks if one or more indexes exist on the collection, fails on first non-existing index
+     *
+     * @param indexes - One or more index names to check.
+     * @param options - Optional settings for the command
+     */
+    indexExists(indexes: string | string[], options?: ListIndexesOptions): Promise<boolean>;
+    /**
+     * Retrieves this collections index info.
+     *
+     * @param options - Optional settings for the command
+     */
+    indexInformation(options: IndexInformationOptions & {
+        full: true;
+    }): Promise<IndexDescriptionInfo[]>;
+    indexInformation(options: IndexInformationOptions & {
+        full?: false;
+    }): Promise<IndexDescriptionCompact>;
+    indexInformation(options: IndexInformationOptions): Promise<IndexDescriptionCompact | IndexDescriptionInfo[]>;
+    indexInformation(): Promise<IndexDescriptionCompact>;
+    /**
+     * Gets an estimate of the count of documents in a collection using collection metadata.
+     * This will always run a count command on all server versions.
+     *
+     * due to an oversight in versions 5.0.0-5.0.8 of MongoDB, the count command,
+     * which estimatedDocumentCount uses in its implementation, was not included in v1 of
+     * the Stable API, and so users of the Stable API with estimatedDocumentCount are
+     * recommended to upgrade their server version to 5.0.9+ or set apiStrict: false to avoid
+     * encountering errors.
+     *
+     * @see {@link https://www.mongodb.com/docs/manual/reference/command/count/#behavior|Count: Behavior}
+     * @param options - Optional settings for the command
+     */
+    estimatedDocumentCount(options?: EstimatedDocumentCountOptions): Promise<number>;
+    /**
+     * Gets the number of documents matching the filter.
+     * For a fast count of the total documents in a collection see {@link Collection#estimatedDocumentCount| estimatedDocumentCount}.
+     *
+     * Due to countDocuments using the $match aggregation pipeline stage, certain query operators cannot be used in countDocuments. This includes the $where and $near query operators, among others. Details can be found in the documentation for the $match aggregation pipeline stage.
+     *
+     * **Note**: When migrating from {@link Collection#count| count} to {@link Collection#countDocuments| countDocuments}
+     * the following query operators must be replaced:
+     *
+     * | Operator | Replacement |
+     * | -------- | ----------- |
+     * | `$where`   | [`$expr`][1] |
+     * | `$near`    | [`$geoWithin`][2] with [`$center`][3] |
+     * | `$nearSphere` | [`$geoWithin`][2] with [`$centerSphere`][4] |
+     *
+     * [1]: https://www.mongodb.com/docs/manual/reference/operator/query/expr/
+     * [2]: https://www.mongodb.com/docs/manual/reference/operator/query/geoWithin/
+     * [3]: https://www.mongodb.com/docs/manual/reference/operator/query/center/#op._S_center
+     * [4]: https://www.mongodb.com/docs/manual/reference/operator/query/centerSphere/#op._S_centerSphere
+     *
+     * @param filter - The filter for the count
+     * @param options - Optional settings for the command
+     *
+     * @see https://www.mongodb.com/docs/manual/reference/operator/query/expr/
+     * @see https://www.mongodb.com/docs/manual/reference/operator/query/geoWithin/
+     * @see https://www.mongodb.com/docs/manual/reference/operator/query/center/#op._S_center
+     * @see https://www.mongodb.com/docs/manual/reference/operator/query/centerSphere/#op._S_centerSphere
+     */
+    countDocuments(filter?: Filter<TSchema>, options?: CountDocumentsOptions): Promise<number>;
+    /**
+     * The distinct command returns a list of distinct values for the given key across a collection.
+     *
+     * @param key - Field of the document to find distinct values for
+     * @param filter - The filter for filtering the set of documents to which we apply the distinct filter.
+     * @param options - Optional settings for the command
+     */
+    distinct<Key extends keyof WithId<TSchema>>(key: Key): Promise<Array<Flatten<WithId<TSchema>[Key]>>>;
+    distinct<Key extends keyof WithId<TSchema>>(key: Key, filter: Filter<TSchema>): Promise<Array<Flatten<WithId<TSchema>[Key]>>>;
+    distinct<Key extends keyof WithId<TSchema>>(key: Key, filter: Filter<TSchema>, options: DistinctOptions): Promise<Array<Flatten<WithId<TSchema>[Key]>>>;
+    distinct(key: string): Promise<any[]>;
+    distinct(key: string, filter: Filter<TSchema>): Promise<any[]>;
+    distinct(key: string, filter: Filter<TSchema>, options: DistinctOptions): Promise<any[]>;
+    /**
+     * Retrieve all the indexes on the collection.
+     *
+     * @param options - Optional settings for the command
+     */
+    indexes(options: IndexInformationOptions & {
+        full?: true;
+    }): Promise<IndexDescriptionInfo[]>;
+    indexes(options: IndexInformationOptions & {
+        full: false;
+    }): Promise<IndexDescriptionCompact>;
+    indexes(options: IndexInformationOptions): Promise<IndexDescriptionCompact | IndexDescriptionInfo[]>;
+    indexes(options?: ListIndexesOptions): Promise<IndexDescriptionInfo[]>;
+    /**
+     * Find a document and delete it in one atomic operation. Requires a write lock for the duration of the operation.
+     *
+     * @param filter - The filter used to select the document to remove
+     * @param options - Optional settings for the command
+     */
+    findOneAndDelete(filter: Filter<TSchema>, options: FindOneAndDeleteOptions & {
+        includeResultMetadata: true;
+    }): Promise<ModifyResult<TSchema>>;
+    findOneAndDelete(filter: Filter<TSchema>, options: FindOneAndDeleteOptions & {
+        includeResultMetadata: false;
+    }): Promise<WithId<TSchema> | null>;
+    findOneAndDelete(filter: Filter<TSchema>, options: FindOneAndDeleteOptions): Promise<WithId<TSchema> | null>;
+    findOneAndDelete(filter: Filter<TSchema>): Promise<WithId<TSchema> | null>;
+    /**
+     * Find a document and replace it in one atomic operation. Requires a write lock for the duration of the operation.
+     *
+     * @param filter - The filter used to select the document to replace
+     * @param replacement - The Document that replaces the matching document
+     * @param options - Optional settings for the command
+     */
+    findOneAndReplace(filter: Filter<TSchema>, replacement: WithoutId<TSchema>, options: FindOneAndReplaceOptions & {
+        includeResultMetadata: true;
+    }): Promise<ModifyResult<TSchema>>;
+    findOneAndReplace(filter: Filter<TSchema>, replacement: WithoutId<TSchema>, options: FindOneAndReplaceOptions & {
+        includeResultMetadata: false;
+    }): Promise<WithId<TSchema> | null>;
+    findOneAndReplace(filter: Filter<TSchema>, replacement: WithoutId<TSchema>, options: FindOneAndReplaceOptions): Promise<WithId<TSchema> | null>;
+    findOneAndReplace(filter: Filter<TSchema>, replacement: WithoutId<TSchema>): Promise<WithId<TSchema> | null>;
+    /**
+     * Find a document and update it in one atomic operation. Requires a write lock for the duration of the operation.
+     *
+     * @param filter - The filter used to select the document to update
+     * @param update - Update operations to be performed on the document
+     * @param options - Optional settings for the command
+     */
+    findOneAndUpdate(filter: Filter<TSchema>, update: UpdateFilter<TSchema>, options: FindOneAndUpdateOptions & {
+        includeResultMetadata: true;
+    }): Promise<ModifyResult<TSchema>>;
+    findOneAndUpdate(filter: Filter<TSchema>, update: UpdateFilter<TSchema>, options: FindOneAndUpdateOptions & {
+        includeResultMetadata: false;
+    }): Promise<WithId<TSchema> | null>;
+    findOneAndUpdate(filter: Filter<TSchema>, update: UpdateFilter<TSchema>, options: FindOneAndUpdateOptions): Promise<WithId<TSchema> | null>;
+    findOneAndUpdate(filter: Filter<TSchema>, update: UpdateFilter<TSchema>): Promise<WithId<TSchema> | null>;
+    /**
+     * Execute an aggregation framework pipeline against the collection, needs MongoDB \>= 2.2
+     *
+     * @param pipeline - An array of aggregation pipelines to execute
+     * @param options - Optional settings for the command
+     */
+    aggregate<T extends Document = Document>(pipeline?: Document[], options?: AggregateOptions): AggregationCursor<T>;
+    /**
+     * Create a new Change Stream, watching for new changes (insertions, updates, replacements, deletions, and invalidations) in this collection.
+     *
+     * @remarks
+     * watch() accepts two generic arguments for distinct use cases:
+     * - The first is to override the schema that may be defined for this specific collection
+     * - The second is to override the shape of the change stream document entirely, if it is not provided the type will default to ChangeStreamDocument of the first argument
+     * @example
+     * By just providing the first argument I can type the change to be `ChangeStreamDocument<{ _id: number }>`
+     * ```ts
+     * collection.watch<{ _id: number }>()
+     *   .on('change', change => console.log(change._id.toFixed(4)));
+     * ```
+     *
+     * @example
+     * Passing a second argument provides a way to reflect the type changes caused by an advanced pipeline.
+     * Here, we are using a pipeline to have MongoDB filter for insert changes only and add a comment.
+     * No need start from scratch on the ChangeStreamInsertDocument type!
+     * By using an intersection we can save time and ensure defaults remain the same type!
+     * ```ts
+     * collection
+     *   .watch<Schema, ChangeStreamInsertDocument<Schema> & { comment: string }>([
+     *     { $addFields: { comment: 'big changes' } },
+     *     { $match: { operationType: 'insert' } }
+     *   ])
+     *   .on('change', change => {
+     *     change.comment.startsWith('big');
+     *     change.operationType === 'insert';
+     *     // No need to narrow in code because the generics did that for us!
+     *     expectType<Schema>(change.fullDocument);
+     *   });
+     * ```
+     *
+     * @remarks
+     * When `timeoutMS` is configured for a change stream, it will have different behaviour depending
+     * on whether the change stream is in iterator mode or emitter mode. In both cases, a change
+     * stream will time out if it does not receive a change event within `timeoutMS` of the last change
+     * event.
+     *
+     * Note that if a change stream is consistently timing out when watching a collection, database or
+     * client that is being changed, then this may be due to the server timing out before it can finish
+     * processing the existing oplog. To address this, restart the change stream with a higher
+     * `timeoutMS`.
+     *
+     * If the change stream times out the initial aggregate operation to establish the change stream on
+     * the server, then the client will close the change stream. If the getMore calls to the server
+     * time out, then the change stream will be left open, but will throw a MongoOperationTimeoutError
+     * when in iterator mode and emit an error event that returns a MongoOperationTimeoutError in
+     * emitter mode.
+     *
+     * To determine whether or not the change stream is still open following a timeout, check the
+     * {@link ChangeStream.closed} getter.
+     *
+     * @example
+     * In iterator mode, if a next() call throws a timeout error, it will attempt to resume the change stream.
+     * The next call can just be retried after this succeeds.
+     * ```ts
+     * const changeStream = collection.watch([], { timeoutMS: 100 });
+     * try {
+     *     await changeStream.next();
+     * } catch (e) {
+     *     if (e instanceof MongoOperationTimeoutError && !changeStream.closed) {
+     *       await changeStream.next();
+     *     }
+     *     throw e;
+     * }
+     * ```
+     *
+     * @example
+     * In emitter mode, if the change stream goes `timeoutMS` without emitting a change event, it will
+     * emit an error event that returns a MongoOperationTimeoutError, but will not close the change
+     * stream unless the resume attempt fails. There is no need to re-establish change listeners as
+     * this will automatically continue emitting change events once the resume attempt completes.
+     *
+     * ```ts
+     * const changeStream = collection.watch([], { timeoutMS: 100 });
+     * changeStream.on('change', console.log);
+     * changeStream.on('error', e => {
+     *     if (e instanceof MongoOperationTimeoutError && !changeStream.closed) {
+     *         // do nothing
+     *     } else {
+     *         changeStream.close();
+     *     }
+     * });
+     * ```
+     *
+     * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents. This allows for filtering (using $match) and manipulating the change stream documents.
+     * @param options - Optional settings for the command
+     * @typeParam TLocal - Type of the data being detected by the change stream
+     * @typeParam TChange - Type of the whole change stream document emitted
+     */
+    watch<TLocal extends Document = TSchema, TChange extends Document = ChangeStreamDocument<TLocal>>(pipeline?: Document[], options?: ChangeStreamOptions): ChangeStream<TLocal, TChange>;
+    /**
+     * Initiate an Out of order batch write operation. All operations will be buffered into insert/update/remove commands executed out of order.
+     *
+     * @throws MongoNotConnectedError
+     * @remarks
+     * **NOTE:** MongoClient must be connected prior to calling this method due to a known limitation in this legacy implementation.
+     * However, `collection.bulkWrite()` provides an equivalent API that does not require prior connecting.
+     */
+    initializeUnorderedBulkOp(options?: BulkWriteOptions): UnorderedBulkOperation;
+    /**
+     * Initiate an In order bulk write operation. Operations will be serially executed in the order they are added, creating a new operation for each switch in types.
+     *
+     * @throws MongoNotConnectedError
+     * @remarks
+     * **NOTE:** MongoClient must be connected prior to calling this method due to a known limitation in this legacy implementation.
+     * However, `collection.bulkWrite()` provides an equivalent API that does not require prior connecting.
+     */
+    initializeOrderedBulkOp(options?: BulkWriteOptions): OrderedBulkOperation;
+    /**
+     * An estimated count of matching documents in the db to a filter.
+     *
+     * **NOTE:** This method has been deprecated, since it does not provide an accurate count of the documents
+     * in a collection. To obtain an accurate count of documents in the collection, use {@link Collection#countDocuments| countDocuments}.
+     * To obtain an estimated count of all documents in the collection, use {@link Collection#estimatedDocumentCount| estimatedDocumentCount}.
+     *
+     * @deprecated use {@link Collection#countDocuments| countDocuments} or {@link Collection#estimatedDocumentCount| estimatedDocumentCount} instead
+     *
+     * @param filter - The filter for the count.
+     * @param options - Optional settings for the command
+     */
+    count(filter?: Filter<TSchema>, options?: CountOptions): Promise<number>;
+    /**
+     * Returns all search indexes for the current collection.
+     *
+     * @param options - The options for the list indexes operation.
+     *
+     * @remarks Only available when used against a 7.0+ Atlas cluster.
+     */
+    listSearchIndexes(options?: ListSearchIndexesOptions): ListSearchIndexesCursor;
+    /**
+     * Returns all search indexes for the current collection.
+     *
+     * @param name - The name of the index to search for.  Only indexes with matching index names will be returned.
+     * @param options - The options for the list indexes operation.
+     *
+     * @remarks Only available when used against a 7.0+ Atlas cluster.
+     */
+    listSearchIndexes(name: string, options?: ListSearchIndexesOptions): ListSearchIndexesCursor;
+    /**
+     * Creates a single search index for the collection.
+     *
+     * @param description - The index description for the new search index.
+     * @returns A promise that resolves to the name of the new search index.
+     *
+     * @remarks Only available when used against a 7.0+ Atlas cluster.
+     */
+    createSearchIndex(description: SearchIndexDescription): Promise<string>;
+    /**
+     * Creates multiple search indexes for the current collection.
+     *
+     * @param descriptions - An array of `SearchIndexDescription`s for the new search indexes.
+     * @returns A promise that resolves to an array of the newly created search index names.
+     *
+     * @remarks Only available when used against a 7.0+ Atlas cluster.
+     * @returns
+     */
+    createSearchIndexes(descriptions: SearchIndexDescription[]): Promise<string[]>;
+    /**
+     * Deletes a search index by index name.
+     *
+     * @param name - The name of the search index to be deleted.
+     *
+     * @remarks Only available when used against a 7.0+ Atlas cluster.
+     */
+    dropSearchIndex(name: string): Promise<void>;
+    /**
+     * Updates a search index by replacing the existing index definition with the provided definition.
+     *
+     * @param name - The name of the search index to update.
+     * @param definition - The new search index definition.
+     *
+     * @remarks Only available when used against a 7.0+ Atlas cluster.
+     */
+    updateSearchIndex(name: string, definition: Document): Promise<void>;
+}
+
+/** @public */
+export declare interface CollectionInfo extends Document {
+    name: string;
+    type?: string;
+    options?: Document;
+    info?: {
+        readOnly?: false;
+        uuid?: Binary;
+    };
+    idIndex?: Document;
+}
+
+/** @public */
+export declare interface CollectionOptions extends BSONSerializeOptions, WriteConcernOptions {
+    /** Specify a read concern for the collection. (only MongoDB 3.2 or higher supported) */
+    readConcern?: ReadConcernLike;
+    /** The preferred read preference (ReadPreference.PRIMARY, ReadPreference.PRIMARY_PREFERRED, ReadPreference.SECONDARY, ReadPreference.SECONDARY_PREFERRED, ReadPreference.NEAREST). */
+    readPreference?: ReadPreferenceLike;
+    /**
+     * @experimental
+     * Specifies the time an operation will run until it throws a timeout error
+     */
+    timeoutMS?: number;
+}
+
+/* Excluded from this release type: CollectionPrivate */
+
+/* Excluded from this release type: COMMAND_FAILED */
+
+/* Excluded from this release type: COMMAND_STARTED */
+
+/* Excluded from this release type: COMMAND_SUCCEEDED */
+
+/**
+ * An event indicating the failure of a given command
+ * @public
+ * @category Event
+ */
+export declare class CommandFailedEvent {
+    address: string;
+    /** Driver generated connection id */
+    connectionId?: string | number;
+    /**
+     * Server generated connection id
+     * Distinct from the connection id and is returned by the hello or legacy hello response as "connectionId" from the server on 4.2+.
+     */
+    serverConnectionId: bigint | null;
+    requestId: number;
+    duration: number;
+    commandName: string;
+    failure: Error;
+    serviceId?: ObjectId;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+    get hasServiceId(): boolean;
+}
+
+/* Excluded from this release type: CommandOperation */
+
+/** @public */
+export declare interface CommandOperationOptions extends OperationOptions, WriteConcernOptions, ExplainOptions {
+    /** Specify a read concern and level for the collection. (only MongoDB 3.2 or higher supported) */
+    readConcern?: ReadConcernLike;
+    /** Collation */
+    collation?: CollationOptions;
+    /**
+     * maxTimeMS is a server-side time limit in milliseconds for processing an operation.
+     */
+    maxTimeMS?: number;
+    /**
+     * Comment to apply to the operation.
+     *
+     * In server versions pre-4.4, 'comment' must be string.  A server
+     * error will be thrown if any other type is provided.
+     *
+     * In server versions 4.4 and above, 'comment' can be any valid BSON type.
+     */
+    comment?: unknown;
+    /** Should retry failed writes */
+    retryWrites?: boolean;
+    dbName?: string;
+    authdb?: string;
+    noResponse?: boolean;
+}
+
+/* Excluded from this release type: CommandOptions */
+
+/**
+ * An event indicating the start of a given command
+ * @public
+ * @category Event
+ */
+export declare class CommandStartedEvent {
+    commandObj?: Document;
+    requestId: number;
+    databaseName: string;
+    commandName: string;
+    command: Document;
+    address: string;
+    /** Driver generated connection id */
+    connectionId?: string | number;
+    /**
+     * Server generated connection id
+     * Distinct from the connection id and is returned by the hello or legacy hello response as "connectionId"
+     * from the server on 4.2+.
+     */
+    serverConnectionId: bigint | null;
+    serviceId?: ObjectId;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+    get hasServiceId(): boolean;
+}
+
+/**
+ * An event indicating the success of a given command
+ * @public
+ * @category Event
+ */
+export declare class CommandSucceededEvent {
+    address: string;
+    /** Driver generated connection id */
+    connectionId?: string | number;
+    /**
+     * Server generated connection id
+     * Distinct from the connection id and is returned by the hello or legacy hello response as "connectionId" from the server on 4.2+.
+     */
+    serverConnectionId: bigint | null;
+    requestId: number;
+    duration: number;
+    commandName: string;
+    reply: unknown;
+    serviceId?: ObjectId;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+    get hasServiceId(): boolean;
+}
+
+/** @public */
+export declare type CommonEvents = 'newListener' | 'removeListener';
+
+/** @public */
+export declare const Compressor: Readonly<{
+    readonly none: 0;
+    readonly snappy: 1;
+    readonly zlib: 2;
+    readonly zstd: 3;
+}>;
+
+/** @public */
+export declare type Compressor = (typeof Compressor)[CompressorName];
+
+/** @public */
+export declare type CompressorName = keyof typeof Compressor;
+
+/** @public */
+export declare type Condition<T> = AlternativeType<T> | FilterOperators<AlternativeType<T>>;
+
+/* Excluded from this release type: configureExplicitResourceManagement */
+
+/* Excluded from this release type: Connection */
+
+/* Excluded from this release type: CONNECTION_CHECK_OUT_FAILED */
+
+/* Excluded from this release type: CONNECTION_CHECK_OUT_STARTED */
+
+/* Excluded from this release type: CONNECTION_CHECKED_IN */
+
+/* Excluded from this release type: CONNECTION_CHECKED_OUT */
+
+/* Excluded from this release type: CONNECTION_CLOSED */
+
+/* Excluded from this release type: CONNECTION_CREATED */
+
+/* Excluded from this release type: CONNECTION_POOL_CLEARED */
+
+/* Excluded from this release type: CONNECTION_POOL_CLOSED */
+
+/* Excluded from this release type: CONNECTION_POOL_CREATED */
+
+/* Excluded from this release type: CONNECTION_POOL_READY */
+
+/* Excluded from this release type: CONNECTION_READY */
+
+/**
+ * An event published when a connection is checked into the connection pool
+ * @public
+ * @category Event
+ */
+export declare class ConnectionCheckedInEvent extends ConnectionPoolMonitoringEvent {
+    /** The id of the connection */
+    connectionId: number | '<monitor>';
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/**
+ * An event published when a connection is checked out of the connection pool
+ * @public
+ * @category Event
+ */
+export declare class ConnectionCheckedOutEvent extends ConnectionPoolMonitoringEvent {
+    /** The id of the connection */
+    connectionId: number | '<monitor>';
+    /* Excluded from this release type: name */
+    /**
+     * The time it took to check out the connection.
+     * More specifically, the time elapsed between
+     * emitting a `ConnectionCheckOutStartedEvent`
+     * and emitting this event as part of the same checking out.
+     *
+     */
+    durationMS: number;
+    /* Excluded from this release type: __constructor */
+}
+
+/**
+ * An event published when a request to check a connection out fails
+ * @public
+ * @category Event
+ */
+export declare class ConnectionCheckOutFailedEvent extends ConnectionPoolMonitoringEvent {
+    /** The reason the attempt to check out failed */
+    reason: string;
+    /* Excluded from this release type: error */
+    /* Excluded from this release type: name */
+    /**
+     * The time it took to check out the connection.
+     * More specifically, the time elapsed between
+     * emitting a `ConnectionCheckOutStartedEvent`
+     * and emitting this event as part of the same check out.
+     */
+    durationMS: number;
+    /* Excluded from this release type: __constructor */
+}
+
+/**
+ * An event published when a request to check a connection out begins
+ * @public
+ * @category Event
+ */
+export declare class ConnectionCheckOutStartedEvent extends ConnectionPoolMonitoringEvent {
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/**
+ * An event published when a connection is closed
+ * @public
+ * @category Event
+ */
+export declare class ConnectionClosedEvent extends ConnectionPoolMonitoringEvent {
+    /** The id of the connection */
+    connectionId: number | '<monitor>';
+    /** The reason the connection was closed */
+    reason: string;
+    serviceId?: ObjectId;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: error */
+    /* Excluded from this release type: __constructor */
+}
+
+/**
+ * An event published when a connection pool creates a new connection
+ * @public
+ * @category Event
+ */
+export declare class ConnectionCreatedEvent extends ConnectionPoolMonitoringEvent {
+    /** A monotonically increasing, per-pool id for the newly created connection */
+    connectionId: number | '<monitor>';
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/** @public */
+export declare type ConnectionEvents = {
+    commandStarted(event: CommandStartedEvent): void;
+    commandSucceeded(event: CommandSucceededEvent): void;
+    commandFailed(event: CommandFailedEvent): void;
+    clusterTimeReceived(clusterTime: Document): void;
+    close(): void;
+    pinned(pinType: string): void;
+    unpinned(pinType: string): void;
+};
+
+/** @public */
+export declare interface ConnectionOptions extends SupportedNodeConnectionOptions, StreamDescriptionOptions, ProxyOptions {
+    id: number | '<monitor>';
+    generation: number;
+    hostAddress: HostAddress;
+    /* Excluded from this release type: autoEncrypter */
+    serverApi?: ServerApi;
+    monitorCommands: boolean;
+    /* Excluded from this release type: connectionType */
+    credentials?: MongoCredentials;
+    /* Excluded from this release type: authProviders */
+    connectTimeoutMS?: number;
+    tls: boolean;
+    noDelay?: boolean;
+    socketTimeoutMS?: number;
+    cancellationToken?: CancellationToken;
+    metadata: ClientMetadata;
+    /* Excluded from this release type: extendedMetadata */
+    /* Excluded from this release type: mongoLogger */
+}
+
+/* Excluded from this release type: ConnectionPool */
+
+/**
+ * An event published when a connection pool is cleared
+ * @public
+ * @category Event
+ */
+export declare class ConnectionPoolClearedEvent extends ConnectionPoolMonitoringEvent {
+    /* Excluded from this release type: serviceId */
+    interruptInUseConnections?: boolean;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/**
+ * An event published when a connection pool is closed
+ * @public
+ * @category Event
+ */
+export declare class ConnectionPoolClosedEvent extends ConnectionPoolMonitoringEvent {
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/**
+ * An event published when a connection pool is created
+ * @public
+ * @category Event
+ */
+export declare class ConnectionPoolCreatedEvent extends ConnectionPoolMonitoringEvent {
+    /** The options used to create this connection pool */
+    options: Pick<ConnectionPoolOptions, 'maxPoolSize' | 'minPoolSize' | 'maxConnecting' | 'maxIdleTimeMS' | 'waitQueueTimeoutMS'>;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/** @public */
+export declare type ConnectionPoolEvents = {
+    connectionPoolCreated(event: ConnectionPoolCreatedEvent): void;
+    connectionPoolReady(event: ConnectionPoolReadyEvent): void;
+    connectionPoolClosed(event: ConnectionPoolClosedEvent): void;
+    connectionPoolCleared(event: ConnectionPoolClearedEvent): void;
+    connectionCreated(event: ConnectionCreatedEvent): void;
+    connectionReady(event: ConnectionReadyEvent): void;
+    connectionClosed(event: ConnectionClosedEvent): void;
+    connectionCheckOutStarted(event: ConnectionCheckOutStartedEvent): void;
+    connectionCheckOutFailed(event: ConnectionCheckOutFailedEvent): void;
+    connectionCheckedOut(event: ConnectionCheckedOutEvent): void;
+    connectionCheckedIn(event: ConnectionCheckedInEvent): void;
+} & Omit<ConnectionEvents, 'close' | 'message'>;
+
+/* Excluded from this release type: ConnectionPoolMetrics */
+
+/**
+ * The base export class for all monitoring events published from the connection pool
+ * @public
+ * @category Event
+ */
+export declare abstract class ConnectionPoolMonitoringEvent {
+    /** A timestamp when the event was created  */
+    time: Date;
+    /** The address (host/port pair) of the pool */
+    address: string;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/** @public */
+export declare interface ConnectionPoolOptions extends Omit<ConnectionOptions, 'id' | 'generation'> {
+    /** The maximum number of connections that may be associated with a pool at a given time. This includes in use and available connections. */
+    maxPoolSize: number;
+    /** The minimum number of connections that MUST exist at any moment in a single connection pool. */
+    minPoolSize: number;
+    /** The maximum number of connections that may be in the process of being established concurrently by the connection pool. */
+    maxConnecting: number;
+    /** The maximum amount of time a connection should remain idle in the connection pool before being marked idle. */
+    maxIdleTimeMS: number;
+    /** The maximum amount of time operation execution should wait for a connection to become available. The default is 0 which means there is no limit. */
+    waitQueueTimeoutMS: number;
+    /** If we are in load balancer mode. */
+    loadBalanced: boolean;
+    /* Excluded from this release type: minPoolSizeCheckFrequencyMS */
+}
+
+/**
+ * An event published when a connection pool is ready
+ * @public
+ * @category Event
+ */
+export declare class ConnectionPoolReadyEvent extends ConnectionPoolMonitoringEvent {
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/**
+ * An event published when a connection is ready for use
+ * @public
+ * @category Event
+ */
+export declare class ConnectionReadyEvent extends ConnectionPoolMonitoringEvent {
+    /** The id of the connection */
+    connectionId: number | '<monitor>';
+    /**
+     * The time it took to establish the connection.
+     * In accordance with the definition of establishment of a connection
+     * specified by `ConnectionPoolOptions.maxConnecting`,
+     * it is the time elapsed between emitting a `ConnectionCreatedEvent`
+     * and emitting this event as part of the same checking out.
+     *
+     * Naturally, when establishing a connection is part of checking out,
+     * this duration is not greater than
+     * `ConnectionCheckedOutEvent.duration`.
+     */
+    durationMS: number;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/** @public */
+export declare interface ConnectOptions {
+    readPreference?: ReadPreference;
+}
+
+/** @public */
+export declare interface CountDocumentsOptions extends AggregateOptions {
+    /** The number of documents to skip. */
+    skip?: number;
+    /** The maximum amount of documents to consider. */
+    limit?: number;
+}
+
+/** @public */
+export declare interface CountOptions extends CommandOperationOptions {
+    /** The number of documents to skip. */
+    skip?: number;
+    /** The maximum amounts to count before aborting. */
+    limit?: number;
+    /**
+     * Number of milliseconds to wait before aborting the query.
+     */
+    maxTimeMS?: number;
+    /** An index name hint for the query. */
+    hint?: string | Document;
+}
+
+/** @public */
+export declare interface CreateCollectionOptions extends CommandOperationOptions {
+    /** Create a capped collection */
+    capped?: boolean;
+    /** @deprecated Create an index on the _id field of the document. This option is deprecated in MongoDB 3.2+ and will be removed once no longer supported by the server. */
+    autoIndexId?: boolean;
+    /** The size of the capped collection in bytes */
+    size?: number;
+    /** The maximum number of documents in the capped collection */
+    max?: number;
+    /** Available for the MMAPv1 storage engine only to set the usePowerOf2Sizes and the noPadding flag */
+    flags?: number;
+    /** Allows users to specify configuration to the storage engine on a per-collection basis when creating a collection */
+    storageEngine?: Document;
+    /** Allows users to specify validation rules or expressions for the collection. For more information, see Document Validation */
+    validator?: Document;
+    /** Determines how strictly MongoDB applies the validation rules to existing documents during an update */
+    validationLevel?: string;
+    /** Determines whether to error on invalid documents or just warn about the violations but allow invalid documents to be inserted */
+    validationAction?: string;
+    /** Allows users to specify a default configuration for indexes when creating a collection */
+    indexOptionDefaults?: Document;
+    /** The name of the source collection or view from which to create the view. The name is not the full namespace of the collection or view (i.e., does not include the database name and implies the same database as the view to create) */
+    viewOn?: string;
+    /** An array that consists of the aggregation pipeline stage. Creates the view by applying the specified pipeline to the viewOn collection or view */
+    pipeline?: Document[];
+    /** A primary key factory function for generation of custom _id keys. */
+    pkFactory?: PkFactory;
+    /** A document specifying configuration options for timeseries collections. */
+    timeseries?: TimeSeriesCollectionOptions;
+    /** A document specifying configuration options for clustered collections. For MongoDB 5.3 and above. */
+    clusteredIndex?: ClusteredCollectionOptions;
+    /** The number of seconds after which a document in a timeseries or clustered collection expires. */
+    expireAfterSeconds?: number;
+    /** @experimental */
+    encryptedFields?: Document;
+    /**
+     * If set, enables pre-update and post-update document events to be included for any
+     * change streams that listen on this collection.
+     */
+    changeStreamPreAndPostImages?: {
+        enabled: boolean;
+    };
+}
+
+/** @public */
+export declare interface CreateIndexesOptions extends Omit<CommandOperationOptions, 'writeConcern'> {
+    /** Creates the index in the background, yielding whenever possible. */
+    background?: boolean;
+    /** Creates an unique index. */
+    unique?: boolean;
+    /** Override the autogenerated index name (useful if the resulting name is larger than 128 bytes) */
+    name?: string;
+    /** Creates a partial index based on the given filter object (MongoDB 3.2 or higher) */
+    partialFilterExpression?: Document;
+    /** Creates a sparse index. */
+    sparse?: boolean;
+    /** Allows you to expire data on indexes applied to a data (MongoDB 2.2 or higher) */
+    expireAfterSeconds?: number;
+    /** Allows users to configure the storage engine on a per-index basis when creating an index. (MongoDB 3.0 or higher) */
+    storageEngine?: Document;
+    /** (MongoDB 4.4. or higher) Specifies how many data-bearing members of a replica set, including the primary, must complete the index builds successfully before the primary marks the indexes as ready. This option accepts the same values for the "w" field in a write concern plus "votingMembers", which indicates all voting data-bearing nodes. */
+    commitQuorum?: number | string;
+    /** Specifies the index version number, either 0 or 1. */
+    version?: number;
+    weights?: Document;
+    default_language?: string;
+    language_override?: string;
+    textIndexVersion?: number;
+    '2dsphereIndexVersion'?: number;
+    bits?: number;
+    /** For geospatial indexes set the lower bound for the co-ordinates. */
+    min?: number;
+    /** For geospatial indexes set the high bound for the co-ordinates. */
+    max?: number;
+    bucketSize?: number;
+    wildcardProjection?: Document;
+    /** Specifies that the index should exist on the target collection but should not be used by the query planner when executing operations. (MongoDB 4.4 or higher) */
+    hidden?: boolean;
+}
+
+/** @public */
+export declare type CSFLEKMSTlsOptions = {
+    aws?: ClientEncryptionTlsOptions;
+    gcp?: ClientEncryptionTlsOptions;
+    kmip?: ClientEncryptionTlsOptions;
+    local?: ClientEncryptionTlsOptions;
+    azure?: ClientEncryptionTlsOptions;
+    [key: string]: ClientEncryptionTlsOptions | undefined;
+};
+
+/* Excluded from this release type: CSOTTimeoutContext */
+
+/* Excluded from this release type: CSOTTimeoutContextOptions */
+
+/** @public */
+export declare const CURSOR_FLAGS: readonly ["tailable", "oplogReplay", "noCursorTimeout", "awaitData", "exhaust", "partial"];
+
+/** @public */
+export declare type CursorFlag = (typeof CURSOR_FLAGS)[number];
+
+/* Excluded from this release type: CursorResponse */
+
+/** @public */
+export declare interface CursorStreamOptions {
+    /** A transformation method applied to each document emitted by the stream */
+    transform?(this: void, doc: Document): Document;
+}
+
+/* Excluded from this release type: CursorTimeoutContext */
+
+/**
+ * @public
+ * @experimental
+ * Specifies how `timeoutMS` is applied to the cursor. Can be either `'cursorLifeTime'` or `'iteration'`
+ * When set to `'iteration'`, the deadline specified by `timeoutMS` applies to each call of
+ * `cursor.next()`.
+ * When set to `'cursorLifetime'`, the deadline applies to the life of the entire cursor.
+ *
+ * Depending on the type of cursor being used, this option has different default values.
+ * For non-tailable cursors, this value defaults to `'cursorLifetime'`
+ * For tailable cursors, this value defaults to `'iteration'` since tailable cursors, by
+ * definition can have an arbitrarily long lifetime.
+ *
+ * @example
+ * ```ts
+ * const cursor = collection.find({}, {timeoutMS: 100, timeoutMode: 'iteration'});
+ * for await (const doc of cursor) {
+ *  // process doc
+ *  // This will throw a timeout error if any of the iterator's `next()` calls takes more than 100ms, but
+ *  // will continue to iterate successfully otherwise, regardless of the number of batches.
+ * }
+ * ```
+ *
+ * @example
+ * ```ts
+ * const cursor = collection.find({}, { timeoutMS: 1000, timeoutMode: 'cursorLifetime' });
+ * const docs = await cursor.toArray(); // This entire line will throw a timeout error if all batches are not fetched and returned within 1000ms.
+ * ```
+ */
+export declare const CursorTimeoutMode: Readonly<{
+    readonly ITERATION: "iteration";
+    readonly LIFETIME: "cursorLifetime";
+}>;
+
+/**
+ * @public
+ * @experimental
+ */
+export declare type CursorTimeoutMode = (typeof CursorTimeoutMode)[keyof typeof CursorTimeoutMode];
+
+/**
+ * @public
+ * The schema for a DataKey in the key vault collection.
+ */
+export declare interface DataKey {
+    _id: UUID;
+    version?: number;
+    keyAltNames?: string[];
+    keyMaterial: Binary;
+    creationDate: Date;
+    updateDate: Date;
+    status: number;
+    masterKey: Document;
+}
+
+/**
+ * The **Db** class is a class that represents a MongoDB Database.
+ * @public
+ *
+ * @example
+ * ```ts
+ * import { MongoClient } from 'mongodb';
+ *
+ * interface Pet {
+ *   name: string;
+ *   kind: 'dog' | 'cat' | 'fish';
+ * }
+ *
+ * const client = new MongoClient('mongodb://localhost:27017');
+ * const db = client.db();
+ *
+ * // Create a collection that validates our union
+ * await db.createCollection<Pet>('pets', {
+ *   validator: { $expr: { $in: ['$kind', ['dog', 'cat', 'fish']] } }
+ * })
+ * ```
+ */
+export declare class Db {
+    /* Excluded from this release type: s */
+    /* Excluded from this release type: client */
+    static SYSTEM_NAMESPACE_COLLECTION: string;
+    static SYSTEM_INDEX_COLLECTION: string;
+    static SYSTEM_PROFILE_COLLECTION: string;
+    static SYSTEM_USER_COLLECTION: string;
+    static SYSTEM_COMMAND_COLLECTION: string;
+    static SYSTEM_JS_COLLECTION: string;
+    /**
+     * Creates a new Db instance.
+     *
+     * Db name cannot contain a dot, the server may apply more restrictions when an operation is run.
+     *
+     * @param client - The MongoClient for the database.
+     * @param databaseName - The name of the database this instance represents.
+     * @param options - Optional settings for Db construction.
+     */
+    constructor(client: MongoClient, databaseName: string, options?: DbOptions);
+    get databaseName(): string;
+    get options(): DbOptions | undefined;
+    /**
+     * Check if a secondary can be used (because the read preference is *not* set to primary)
+     */
+    get secondaryOk(): boolean;
+    get readConcern(): ReadConcern | undefined;
+    /**
+     * The current readPreference of the Db. If not explicitly defined for
+     * this Db, will be inherited from the parent MongoClient
+     */
+    get readPreference(): ReadPreference;
+    get bsonOptions(): BSONSerializeOptions;
+    get writeConcern(): WriteConcern | undefined;
+    get namespace(): string;
+    get timeoutMS(): number | undefined;
+    /**
+     * Create a new collection on a server with the specified options. Use this to create capped collections.
+     * More information about command options available at https://www.mongodb.com/docs/manual/reference/command/create/
+     *
+     * Collection namespace validation is performed server-side.
+     *
+     * @param name - The name of the collection to create
+     * @param options - Optional settings for the command
+     */
+    createCollection<TSchema extends Document = Document>(name: string, options?: CreateCollectionOptions): Promise<Collection<TSchema>>;
+    /**
+     * Execute a command
+     *
+     * @remarks
+     * This command does not inherit options from the MongoClient.
+     *
+     * The driver will ensure the following fields are attached to the command sent to the server:
+     * - `lsid` - sourced from an implicit session or options.session
+     * - `$readPreference` - defaults to primary or can be configured by options.readPreference
+     * - `$db` - sourced from the name of this database
+     *
+     * If the client has a serverApi setting:
+     * - `apiVersion`
+     * - `apiStrict`
+     * - `apiDeprecationErrors`
+     *
+     * When in a transaction:
+     * - `readConcern` - sourced from readConcern set on the TransactionOptions
+     * - `writeConcern` - sourced from writeConcern set on the TransactionOptions
+     *
+     * Attaching any of the above fields to the command will have no effect as the driver will overwrite the value.
+     *
+     * @param command - The command to run
+     * @param options - Optional settings for the command
+     */
+    command(command: Document, options?: RunCommandOptions): Promise<Document>;
+    /**
+     * Execute an aggregation framework pipeline against the database.
+     *
+     * @param pipeline - An array of aggregation stages to be executed
+     * @param options - Optional settings for the command
+     */
+    aggregate<T extends Document = Document>(pipeline?: Document[], options?: AggregateOptions): AggregationCursor<T>;
+    /** Return the Admin db instance */
+    admin(): Admin;
+    /**
+     * Returns a reference to a MongoDB Collection. If it does not exist it will be created implicitly.
+     *
+     * Collection namespace validation is performed server-side.
+     *
+     * @param name - the collection name we wish to access.
+     * @returns return the new Collection instance
+     */
+    collection<TSchema extends Document = Document>(name: string, options?: CollectionOptions): Collection<TSchema>;
+    /**
+     * Get all the db statistics.
+     *
+     * @param options - Optional settings for the command
+     */
+    stats(options?: DbStatsOptions): Promise<Document>;
+    /**
+     * List all collections of this database with optional filter
+     *
+     * @param filter - Query to filter collections by
+     * @param options - Optional settings for the command
+     */
+    listCollections(filter: Document, options: Exclude<ListCollectionsOptions, 'nameOnly'> & {
+        nameOnly: true;
+    }): ListCollectionsCursor<Pick<CollectionInfo, 'name' | 'type'>>;
+    listCollections(filter: Document, options: Exclude<ListCollectionsOptions, 'nameOnly'> & {
+        nameOnly: false;
+    }): ListCollectionsCursor<CollectionInfo>;
+    listCollections<T extends Pick<CollectionInfo, 'name' | 'type'> | CollectionInfo = Pick<CollectionInfo, 'name' | 'type'> | CollectionInfo>(filter?: Document, options?: ListCollectionsOptions): ListCollectionsCursor<T>;
+    /**
+     * Rename a collection.
+     *
+     * @remarks
+     * This operation does not inherit options from the MongoClient.
+     *
+     * @param fromCollection - Name of current collection to rename
+     * @param toCollection - New name of of the collection
+     * @param options - Optional settings for the command
+     */
+    renameCollection<TSchema extends Document = Document>(fromCollection: string, toCollection: string, options?: RenameOptions): Promise<Collection<TSchema>>;
+    /**
+     * Drop a collection from the database, removing it permanently. New accesses will create a new collection.
+     *
+     * @param name - Name of collection to drop
+     * @param options - Optional settings for the command
+     */
+    dropCollection(name: string, options?: DropCollectionOptions): Promise<boolean>;
+    /**
+     * Drop a database, removing it permanently from the server.
+     *
+     * @param options - Optional settings for the command
+     */
+    dropDatabase(options?: DropDatabaseOptions): Promise<boolean>;
+    /**
+     * Fetch all collections for the current db.
+     *
+     * @param options - Optional settings for the command
+     */
+    collections(options?: ListCollectionsOptions): Promise<Collection[]>;
+    /**
+     * Creates an index on the db and collection.
+     *
+     * @param name - Name of the collection to create the index on.
+     * @param indexSpec - Specify the field to index, or an index specification
+     * @param options - Optional settings for the command
+     */
+    createIndex(name: string, indexSpec: IndexSpecification, options?: CreateIndexesOptions): Promise<string>;
+    /**
+     * Remove a user from a database
+     *
+     * @param username - The username to remove
+     * @param options - Optional settings for the command
+     */
+    removeUser(username: string, options?: RemoveUserOptions): Promise<boolean>;
+    /**
+     * Set the current profiling level of MongoDB
+     *
+     * @param level - The new profiling level (off, slow_only, all).
+     * @param options - Optional settings for the command
+     */
+    setProfilingLevel(level: ProfilingLevel, options?: SetProfilingLevelOptions): Promise<ProfilingLevel>;
+    /**
+     * Retrieve the current profiling Level for MongoDB
+     *
+     * @param options - Optional settings for the command
+     */
+    profilingLevel(options?: ProfilingLevelOptions): Promise<string>;
+    /**
+     * Retrieves this collections index info.
+     *
+     * @param name - The name of the collection.
+     * @param options - Optional settings for the command
+     */
+    indexInformation(name: string, options: IndexInformationOptions & {
+        full: true;
+    }): Promise<IndexDescriptionInfo[]>;
+    indexInformation(name: string, options: IndexInformationOptions & {
+        full?: false;
+    }): Promise<IndexDescriptionCompact>;
+    indexInformation(name: string, options: IndexInformationOptions): Promise<IndexDescriptionCompact | IndexDescriptionInfo[]>;
+    indexInformation(name: string): Promise<IndexDescriptionCompact>;
+    /**
+     * Create a new Change Stream, watching for new changes (insertions, updates,
+     * replacements, deletions, and invalidations) in this database. Will ignore all
+     * changes to system collections.
+     *
+     * @remarks
+     * watch() accepts two generic arguments for distinct use cases:
+     * - The first is to provide the schema that may be defined for all the collections within this database
+     * - The second is to override the shape of the change stream document entirely, if it is not provided the type will default to ChangeStreamDocument of the first argument
+     *
+     * @remarks
+     * When `timeoutMS` is configured for a change stream, it will have different behaviour depending
+     * on whether the change stream is in iterator mode or emitter mode. In both cases, a change
+     * stream will time out if it does not receive a change event within `timeoutMS` of the last change
+     * event.
+     *
+     * Note that if a change stream is consistently timing out when watching a collection, database or
+     * client that is being changed, then this may be due to the server timing out before it can finish
+     * processing the existing oplog. To address this, restart the change stream with a higher
+     * `timeoutMS`.
+     *
+     * If the change stream times out the initial aggregate operation to establish the change stream on
+     * the server, then the client will close the change stream. If the getMore calls to the server
+     * time out, then the change stream will be left open, but will throw a MongoOperationTimeoutError
+     * when in iterator mode and emit an error event that returns a MongoOperationTimeoutError in
+     * emitter mode.
+     *
+     * To determine whether or not the change stream is still open following a timeout, check the
+     * {@link ChangeStream.closed} getter.
+     *
+     * @example
+     * In iterator mode, if a next() call throws a timeout error, it will attempt to resume the change stream.
+     * The next call can just be retried after this succeeds.
+     * ```ts
+     * const changeStream = collection.watch([], { timeoutMS: 100 });
+     * try {
+     *     await changeStream.next();
+     * } catch (e) {
+     *     if (e instanceof MongoOperationTimeoutError && !changeStream.closed) {
+     *       await changeStream.next();
+     *     }
+     *     throw e;
+     * }
+     * ```
+     *
+     * @example
+     * In emitter mode, if the change stream goes `timeoutMS` without emitting a change event, it will
+     * emit an error event that returns a MongoOperationTimeoutError, but will not close the change
+     * stream unless the resume attempt fails. There is no need to re-establish change listeners as
+     * this will automatically continue emitting change events once the resume attempt completes.
+     *
+     * ```ts
+     * const changeStream = collection.watch([], { timeoutMS: 100 });
+     * changeStream.on('change', console.log);
+     * changeStream.on('error', e => {
+     *     if (e instanceof MongoOperationTimeoutError && !changeStream.closed) {
+     *         // do nothing
+     *     } else {
+     *         changeStream.close();
+     *     }
+     * });
+     * ```
+     * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents. This allows for filtering (using $match) and manipulating the change stream documents.
+     * @param options - Optional settings for the command
+     * @typeParam TSchema - Type of the data being detected by the change stream
+     * @typeParam TChange - Type of the whole change stream document emitted
+     */
+    watch<TSchema extends Document = Document, TChange extends Document = ChangeStreamDocument<TSchema>>(pipeline?: Document[], options?: ChangeStreamOptions): ChangeStream<TSchema, TChange>;
+    /**
+     * A low level cursor API providing basic driver functionality:
+     * - ClientSession management
+     * - ReadPreference for server selection
+     * - Running getMores automatically when a local batch is exhausted
+     *
+     * @param command - The command that will start a cursor on the server.
+     * @param options - Configurations for running the command, bson options will apply to getMores
+     */
+    runCursorCommand(command: Document, options?: RunCursorCommandOptions): RunCommandCursor;
+}
+
+/* Excluded from this release type: DB_AGGREGATE_COLLECTION */
+
+/** @public */
+export declare interface DbOptions extends BSONSerializeOptions, WriteConcernOptions {
+    /** If the database authentication is dependent on another databaseName. */
+    authSource?: string;
+    /** Force server to assign _id values instead of driver. */
+    forceServerObjectId?: boolean;
+    /** The preferred read preference (ReadPreference.PRIMARY, ReadPreference.PRIMARY_PREFERRED, ReadPreference.SECONDARY, ReadPreference.SECONDARY_PREFERRED, ReadPreference.NEAREST). */
+    readPreference?: ReadPreferenceLike;
+    /** A primary key factory object for generation of custom _id keys. */
+    pkFactory?: PkFactory;
+    /** Specify a read concern for the collection. (only MongoDB 3.2 or higher supported) */
+    readConcern?: ReadConcern;
+    /** Should retry failed writes */
+    retryWrites?: boolean;
+    /**
+     * @experimental
+     * Specifies the time an operation will run until it throws a timeout error
+     */
+    timeoutMS?: number;
+}
+
+/* Excluded from this release type: DbPrivate */
+export { DBRef }
+
+/** @public */
+export declare interface DbStatsOptions extends CommandOperationOptions {
+    /** Divide the returned sizes by scale value. */
+    scale?: number;
+}
+
+export { Decimal128 }
+
+/** @public */
+export declare interface DeleteManyModel<TSchema extends Document = Document> {
+    /** The filter to limit the deleted documents. */
+    filter: Filter<TSchema>;
+    /** Specifies a collation. */
+    collation?: CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: Hint;
+}
+
+/** @public */
+export declare interface DeleteOneModel<TSchema extends Document = Document> {
+    /** The filter to limit the deleted documents. */
+    filter: Filter<TSchema>;
+    /** Specifies a collation. */
+    collation?: CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: Hint;
+}
+
+/** @public */
+export declare interface DeleteOptions extends CommandOperationOptions, WriteConcernOptions {
+    /** If true, when an insert fails, don't execute the remaining writes. If false, continue with remaining inserts when one fails. */
+    ordered?: boolean;
+    /** Specifies the collation to use for the operation */
+    collation?: CollationOptions;
+    /** Specify that the update query should only consider plans using the hinted index */
+    hint?: string | Document;
+    /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+    let?: Document;
+}
+
+/** @public */
+export declare interface DeleteResult {
+    /** Indicates whether this write result was acknowledged. If not, then all other members of this result will be undefined. */
+    acknowledged: boolean;
+    /** The number of documents that were deleted */
+    deletedCount: number;
+}
+
+/** @public */
+export declare interface DeleteStatement {
+    /** The query that matches documents to delete. */
+    q: Document;
+    /** The number of matching documents to delete. */
+    limit: number;
+    /** Specifies the collation to use for the operation. */
+    collation?: CollationOptions;
+    /** A document or string that specifies the index to use to support the query predicate. */
+    hint?: Hint;
+}
+
+export { deserialize }
+
+/** @public */
+export declare type DistinctOptions = CommandOperationOptions;
+
+export { Document }
+
+export { Double }
+
+/** @public */
+export declare interface DriverInfo {
+    name?: string;
+    version?: string;
+    platform?: string;
+}
+
+/** @public */
+export declare interface DropCollectionOptions extends CommandOperationOptions {
+    /** @experimental */
+    encryptedFields?: Document;
+}
+
+/** @public */
+export declare type DropDatabaseOptions = CommandOperationOptions;
+
+/** @public */
+export declare type DropIndexesOptions = CommandOperationOptions;
+
+/* Excluded from this release type: Encrypter */
+
+/* Excluded from this release type: EncrypterOptions */
+
+/** @public */
+export declare interface EndSessionOptions {
+    /* Excluded from this release type: error */
+    force?: boolean;
+    forceClear?: boolean;
+    /** Specifies the time an operation will run until it throws a timeout error */
+    timeoutMS?: number;
+}
+
+/** TypeScript Omit (Exclude to be specific) does not work for objects with an "any" indexed type, and breaks discriminated unions @public */
+export declare type EnhancedOmit<TRecordOrUnion, KeyUnion> = string extends keyof TRecordOrUnion ? TRecordOrUnion : TRecordOrUnion extends any ? Pick<TRecordOrUnion, Exclude<keyof TRecordOrUnion, KeyUnion>> : never;
+
+/** @public */
+export declare interface ErrorDescription extends Document {
+    message?: string;
+    errmsg?: string;
+    $err?: string;
+    errorLabels?: string[];
+    errInfo?: Document;
+}
+
+/** @public */
+export declare interface EstimatedDocumentCountOptions extends CommandOperationOptions {
+    /**
+     * The maximum amount of time to allow the operation to run.
+     *
+     * This option is sent only if the caller explicitly provides a value. The default is to not send a value.
+     */
+    maxTimeMS?: number;
+}
+
+/** @public */
+export declare type EventEmitterWithState = {
+    /* Excluded from this release type: stateChanged */
+};
+
+/**
+ * Event description type
+ * @public
+ */
+export declare type EventsDescription = Record<string, GenericListener>;
+
+/* Excluded from this release type: Explain */
+
+/**
+ * @public
+ *
+ * A base class for any cursors that have `explain()` methods.
+ */
+export declare abstract class ExplainableCursor<TSchema> extends AbstractCursor<TSchema> {
+    /** Execute the explain for the cursor */
+    abstract explain(): Promise<Document>;
+    abstract explain(verbosity: ExplainVerbosityLike | ExplainCommandOptions): Promise<Document>;
+    abstract explain(options: {
+        timeoutMS?: number;
+    }): Promise<Document>;
+    abstract explain(verbosity: ExplainVerbosityLike | ExplainCommandOptions, options: {
+        timeoutMS?: number;
+    }): Promise<Document>;
+    abstract explain(verbosity?: ExplainVerbosityLike | ExplainCommandOptions | {
+        timeoutMS?: number;
+    }, options?: {
+        timeoutMS?: number;
+    }): Promise<Document>;
+    protected resolveExplainTimeoutOptions(verbosity?: ExplainVerbosityLike | ExplainCommandOptions | {
+        timeoutMS?: number;
+    }, options?: {
+        timeoutMS?: number;
+    }): {
+        timeout?: {
+            timeoutMS?: number;
+        };
+        explain?: ExplainVerbosityLike | ExplainCommandOptions;
+    };
+}
+
+/** @public */
+export declare interface ExplainCommandOptions {
+    /** The explain verbosity for the command. */
+    verbosity: ExplainVerbosity;
+    /** The maxTimeMS setting for the command. */
+    maxTimeMS?: number;
+}
+
+/**
+ * @public
+ *
+ * When set, this configures an explain command.  Valid values are boolean (for legacy compatibility,
+ * see {@link ExplainVerbosityLike}), a string containing the explain verbosity, or an object containing the verbosity and
+ * an optional maxTimeMS.
+ *
+ * Examples of valid usage:
+ *
+ * ```typescript
+ * collection.find({ name: 'john doe' }, { explain: true });
+ * collection.find({ name: 'john doe' }, { explain: false });
+ * collection.find({ name: 'john doe' }, { explain: 'queryPlanner' });
+ * collection.find({ name: 'john doe' }, { explain: { verbosity: 'queryPlanner' } });
+ * ```
+ *
+ * maxTimeMS can be configured to limit the amount of time the server
+ * spends executing an explain by providing an object:
+ *
+ * ```typescript
+ * // limits the `explain` command to no more than 2 seconds
+ * collection.find({ name: 'john doe' }, {
+ *   explain:  {
+ *    verbosity: 'queryPlanner',
+ *    maxTimeMS: 2000
+ *  }
+ * });
+ * ```
+ */
+export declare interface ExplainOptions {
+    /** Specifies the verbosity mode for the explain output. */
+    explain?: ExplainVerbosityLike | ExplainCommandOptions;
+}
+
+/** @public */
+export declare const ExplainVerbosity: Readonly<{
+    readonly queryPlanner: "queryPlanner";
+    readonly queryPlannerExtended: "queryPlannerExtended";
+    readonly executionStats: "executionStats";
+    readonly allPlansExecution: "allPlansExecution";
+}>;
+
+/** @public */
+export declare type ExplainVerbosity = string;
+
+/**
+ * For backwards compatibility, true is interpreted as "allPlansExecution"
+ * and false as "queryPlanner".
+ * @public
+ */
+export declare type ExplainVerbosityLike = ExplainVerbosity | boolean;
+
+/** A MongoDB filter can be some portion of the schema or a set of operators @public */
+export declare type Filter<TSchema> = {
+    [P in keyof WithId<TSchema>]?: Condition<WithId<TSchema>[P]>;
+} & RootFilterOperators<WithId<TSchema>>;
+
+/** @public */
+export declare type FilterOperations<T> = T extends Record<string, any> ? {
+    [key in keyof T]?: FilterOperators<T[key]>;
+} : FilterOperators<T>;
+
+/** @public */
+export declare interface FilterOperators<TValue> extends NonObjectIdLikeDocument {
+    $eq?: TValue;
+    $gt?: TValue;
+    $gte?: TValue;
+    $in?: ReadonlyArray<TValue>;
+    $lt?: TValue;
+    $lte?: TValue;
+    $ne?: TValue;
+    $nin?: ReadonlyArray<TValue>;
+    $not?: TValue extends string ? FilterOperators<TValue> | RegExp : FilterOperators<TValue>;
+    /**
+     * When `true`, `$exists` matches the documents that contain the field,
+     * including documents where the field value is null.
+     */
+    $exists?: boolean;
+    $type?: BSONType | BSONTypeAlias;
+    $expr?: Record<string, any>;
+    $jsonSchema?: Record<string, any>;
+    $mod?: TValue extends number ? [number, number] : never;
+    $regex?: TValue extends string ? RegExp | BSONRegExp | string : never;
+    $options?: TValue extends string ? string : never;
+    $geoIntersects?: {
+        $geometry: Document;
+    };
+    $geoWithin?: Document;
+    $near?: Document;
+    $nearSphere?: Document;
+    $maxDistance?: number;
+    $all?: ReadonlyArray<any>;
+    $elemMatch?: Document;
+    $size?: TValue extends ReadonlyArray<any> ? number : never;
+    $bitsAllClear?: BitwiseFilter;
+    $bitsAllSet?: BitwiseFilter;
+    $bitsAnyClear?: BitwiseFilter;
+    $bitsAnySet?: BitwiseFilter;
+    $rand?: Record<string, never>;
+}
+
+/** @public */
+export declare class FindCursor<TSchema = any> extends ExplainableCursor<TSchema> {
+    /* Excluded from this release type: cursorFilter */
+    /* Excluded from this release type: numReturned */
+    /* Excluded from this release type: findOptions */
+    /* Excluded from this release type: __constructor */
+    clone(): FindCursor<TSchema>;
+    map<T>(transform: (doc: TSchema) => T): FindCursor<T>;
+    /* Excluded from this release type: _initialize */
+    /* Excluded from this release type: getMore */
+    /**
+     * Get the count of documents for this cursor
+     * @deprecated Use `collection.estimatedDocumentCount` or `collection.countDocuments` instead
+     */
+    count(options?: CountOptions): Promise<number>;
+    /** Execute the explain for the cursor */
+    explain(): Promise<Document>;
+    explain(verbosity: ExplainVerbosityLike | ExplainCommandOptions): Promise<Document>;
+    explain(options: {
+        timeoutMS?: number;
+    }): Promise<Document>;
+    explain(verbosity: ExplainVerbosityLike | ExplainCommandOptions, options: {
+        timeoutMS?: number;
+    }): Promise<Document>;
+    /** Set the cursor query */
+    filter(filter: Document): this;
+    /**
+     * Set the cursor hint
+     *
+     * @param hint - If specified, then the query system will only consider plans using the hinted index.
+     */
+    hint(hint: Hint): this;
+    /**
+     * Set the cursor min
+     *
+     * @param min - Specify a $min value to specify the inclusive lower bound for a specific index in order to constrain the results of find(). The $min specifies the lower bound for all keys of a specific index in order.
+     */
+    min(min: Document): this;
+    /**
+     * Set the cursor max
+     *
+     * @param max - Specify a $max value to specify the exclusive upper bound for a specific index in order to constrain the results of find(). The $max specifies the upper bound for all keys of a specific index in order.
+     */
+    max(max: Document): this;
+    /**
+     * Set the cursor returnKey.
+     * If set to true, modifies the cursor to only return the index field or fields for the results of the query, rather than documents.
+     * If set to true and the query does not use an index to perform the read operation, the returned documents will not contain any fields.
+     *
+     * @param value - the returnKey value.
+     */
+    returnKey(value: boolean): this;
+    /**
+     * Modifies the output of a query by adding a field $recordId to matching documents. $recordId is the internal key which uniquely identifies a document in a collection.
+     *
+     * @param value - The $showDiskLoc option has now been deprecated and replaced with the showRecordId field. $showDiskLoc will still be accepted for OP_QUERY stye find.
+     */
+    showRecordId(value: boolean): this;
+    /**
+     * Add a query modifier to the cursor query
+     *
+     * @param name - The query modifier (must start with $, such as $orderby etc)
+     * @param value - The modifier value.
+     */
+    addQueryModifier(name: string, value: string | boolean | number | Document): this;
+    /**
+     * Add a comment to the cursor query allowing for tracking the comment in the log.
+     *
+     * @param value - The comment attached to this query.
+     */
+    comment(value: string): this;
+    /**
+     * Set a maxAwaitTimeMS on a tailing cursor query to allow to customize the timeout value for the option awaitData (Only supported on MongoDB 3.2 or higher, ignored otherwise)
+     *
+     * @param value - Number of milliseconds to wait before aborting the tailed query.
+     */
+    maxAwaitTimeMS(value: number): this;
+    /**
+     * Set a maxTimeMS on the cursor query, allowing for hard timeout limits on queries (Only supported on MongoDB 2.6 or higher)
+     *
+     * @param value - Number of milliseconds to wait before aborting the query.
+     */
+    maxTimeMS(value: number): this;
+    /**
+     * Add a project stage to the aggregation pipeline
+     *
+     * @remarks
+     * In order to strictly type this function you must provide an interface
+     * that represents the effect of your projection on the result documents.
+     *
+     * By default chaining a projection to your cursor changes the returned type to the generic
+     * {@link Document} type.
+     * You should specify a parameterized type to have assertions on your final results.
+     *
+     * @example
+     * ```typescript
+     * // Best way
+     * const docs: FindCursor<{ a: number }> = cursor.project<{ a: number }>({ _id: 0, a: true });
+     * // Flexible way
+     * const docs: FindCursor<Document> = cursor.project({ _id: 0, a: true });
+     * ```
+     *
+     * @remarks
+     *
+     * **Note for Typescript Users:** adding a transform changes the return type of the iteration of this cursor,
+     * it **does not** return a new instance of a cursor. This means when calling project,
+     * you should always assign the result to a new variable in order to get a correctly typed cursor variable.
+     * Take note of the following example:
+     *
+     * @example
+     * ```typescript
+     * const cursor: FindCursor<{ a: number; b: string }> = coll.find();
+     * const projectCursor = cursor.project<{ a: number }>({ _id: 0, a: true });
+     * const aPropOnlyArray: {a: number}[] = await projectCursor.toArray();
+     *
+     * // or always use chaining and save the final cursor
+     *
+     * const cursor = coll.find().project<{ a: string }>({
+     *   _id: 0,
+     *   a: { $convert: { input: '$a', to: 'string' }
+     * }});
+     * ```
+     */
+    project<T extends Document = Document>(value: Document): FindCursor<T>;
+    /**
+     * Sets the sort order of the cursor query.
+     *
+     * @param sort - The key or keys set for the sort.
+     * @param direction - The direction of the sorting (1 or -1).
+     */
+    sort(sort: Sort | string, direction?: SortDirection): this;
+    /**
+     * Allows disk use for blocking sort operations exceeding 100MB memory. (MongoDB 3.2 or higher)
+     *
+     * @remarks
+     * {@link https://www.mongodb.com/docs/manual/reference/command/find/#find-cmd-allowdiskuse | find command allowDiskUse documentation}
+     */
+    allowDiskUse(allow?: boolean): this;
+    /**
+     * Set the collation options for the cursor.
+     *
+     * @param value - The cursor collation options (MongoDB 3.4 or higher) settings for update operation (see 3.4 documentation for available fields).
+     */
+    collation(value: CollationOptions): this;
+    /**
+     * Set the limit for the cursor.
+     *
+     * @param value - The limit for the cursor query.
+     */
+    limit(value: number): this;
+    /**
+     * Set the skip for the cursor.
+     *
+     * @param value - The skip for the cursor query.
+     */
+    skip(value: number): this;
+}
+
+/** @public */
+export declare interface FindOneAndDeleteOptions extends CommandOperationOptions {
+    /** An optional hint for query optimization. See the {@link https://www.mongodb.com/docs/manual/reference/command/update/#update-command-hint|update command} reference for more information.*/
+    hint?: Document;
+    /** Limits the fields to return for all matching documents. */
+    projection?: Document;
+    /** Determines which document the operation modifies if the query selects multiple documents. */
+    sort?: Sort;
+    /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+    let?: Document;
+    /**
+     * Return the ModifyResult instead of the modified document. Defaults to false
+     */
+    includeResultMetadata?: boolean;
+}
+
+/** @public */
+export declare interface FindOneAndReplaceOptions extends CommandOperationOptions {
+    /** Allow driver to bypass schema validation. */
+    bypassDocumentValidation?: boolean;
+    /** An optional hint for query optimization. See the {@link https://www.mongodb.com/docs/manual/reference/command/update/#update-command-hint|update command} reference for more information.*/
+    hint?: Document;
+    /** Limits the fields to return for all matching documents. */
+    projection?: Document;
+    /** When set to 'after', returns the updated document rather than the original. The default is 'before'.  */
+    returnDocument?: ReturnDocument;
+    /** Determines which document the operation modifies if the query selects multiple documents. */
+    sort?: Sort;
+    /** Upsert the document if it does not exist. */
+    upsert?: boolean;
+    /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+    let?: Document;
+    /**
+     * Return the ModifyResult instead of the modified document. Defaults to false
+     */
+    includeResultMetadata?: boolean;
+}
+
+/** @public */
+export declare interface FindOneAndUpdateOptions extends CommandOperationOptions {
+    /** Optional list of array filters referenced in filtered positional operators */
+    arrayFilters?: Document[];
+    /** Allow driver to bypass schema validation. */
+    bypassDocumentValidation?: boolean;
+    /** An optional hint for query optimization. See the {@link https://www.mongodb.com/docs/manual/reference/command/update/#update-command-hint|update command} reference for more information.*/
+    hint?: Document;
+    /** Limits the fields to return for all matching documents. */
+    projection?: Document;
+    /** When set to 'after', returns the updated document rather than the original. The default is 'before'.  */
+    returnDocument?: ReturnDocument;
+    /** Determines which document the operation modifies if the query selects multiple documents. */
+    sort?: Sort;
+    /** Upsert the document if it does not exist. */
+    upsert?: boolean;
+    /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+    let?: Document;
+    /**
+     * Return the ModifyResult instead of the modified document. Defaults to false
+     */
+    includeResultMetadata?: boolean;
+}
+
+/**
+ * A builder object that is returned from {@link BulkOperationBase#find}.
+ * Is used to build a write operation that involves a query filter.
+ *
+ * @public
+ */
+export declare class FindOperators {
+    bulkOperation: BulkOperationBase;
+    /* Excluded from this release type: __constructor */
+    /** Add a multiple update operation to the bulk operation */
+    update(updateDocument: Document | Document[]): BulkOperationBase;
+    /** Add a single update operation to the bulk operation */
+    updateOne(updateDocument: Document | Document[]): BulkOperationBase;
+    /** Add a replace one operation to the bulk operation */
+    replaceOne(replacement: Document): BulkOperationBase;
+    /** Add a delete one operation to the bulk operation */
+    deleteOne(): BulkOperationBase;
+    /** Add a delete many operation to the bulk operation */
+    delete(): BulkOperationBase;
+    /** Upsert modifier for update bulk operation, noting that this operation is an upsert. */
+    upsert(): this;
+    /** Specifies the collation for the query condition. */
+    collation(collation: CollationOptions): this;
+    /** Specifies arrayFilters for UpdateOne or UpdateMany bulk operations. */
+    arrayFilters(arrayFilters: Document[]): this;
+    /** Specifies hint for the bulk operation. */
+    hint(hint: Hint): this;
+}
+
+/**
+ * @public
+ * @typeParam TSchema - Unused schema definition, deprecated usage, only specify `FindOptions` with no generic
+ */
+export declare interface FindOptions<TSchema extends Document = Document> extends Omit<CommandOperationOptions, 'writeConcern' | 'explain'>, AbstractCursorOptions {
+    /** Sets the limit of documents returned in the query. */
+    limit?: number;
+    /** Set to sort the documents coming back from the query. Array of indexes, `[['a', 1]]` etc. */
+    sort?: Sort;
+    /** The fields to return in the query. Object of fields to either include or exclude (one of, not both), `{'a':1, 'b': 1}` **or** `{'a': 0, 'b': 0}` */
+    projection?: Document;
+    /** Set to skip N documents ahead in your query (useful for pagination). */
+    skip?: number;
+    /** Tell the query to use specific indexes in the query. Object of indexes to use, `{'_id':1}` */
+    hint?: Hint;
+    /** Specify if the cursor can timeout. */
+    timeout?: boolean;
+    /** Specify if the cursor is tailable. */
+    tailable?: boolean;
+    /** Specify if the cursor is a tailable-await cursor. Requires `tailable` to be true */
+    awaitData?: boolean;
+    /** Set the batchSize for the getMoreCommand when iterating over the query results. */
+    batchSize?: number;
+    /** If true, returns only the index keys in the resulting documents. */
+    returnKey?: boolean;
+    /** The inclusive lower bound for a specific index */
+    min?: Document;
+    /** The exclusive upper bound for a specific index */
+    max?: Document;
+    /** Number of milliseconds to wait before aborting the query. */
+    maxTimeMS?: number;
+    /** The maximum amount of time for the server to wait on new documents to satisfy a tailable cursor query. Requires `tailable` and `awaitData` to be true */
+    maxAwaitTimeMS?: number;
+    /** The server normally times out idle cursors after an inactivity period (10 minutes) to prevent excess memory use. Set this option to prevent that. */
+    noCursorTimeout?: boolean;
+    /** Specify collation (MongoDB 3.4 or higher) settings for update operation (see 3.4 documentation for available fields). */
+    collation?: CollationOptions;
+    /** Allows disk use for blocking sort operations exceeding 100MB memory. (MongoDB 3.2 or higher) */
+    allowDiskUse?: boolean;
+    /** Determines whether to close the cursor after the first batch. Defaults to false. */
+    singleBatch?: boolean;
+    /** For queries against a sharded collection, allows the command (or subsequent getMore commands) to return partial results, rather than an error, if one or more queried shards are unavailable. */
+    allowPartialResults?: boolean;
+    /** Determines whether to return the record identifier for each document. If true, adds a field $recordId to the returned documents. */
+    showRecordId?: boolean;
+    /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+    let?: Document;
+    /**
+     * Option to enable an optimized code path for queries looking for a particular range of `ts` values in the oplog. Requires `tailable` to be true.
+     * @deprecated Starting from MongoDB 4.4 this flag is not needed and will be ignored.
+     */
+    oplogReplay?: boolean;
+    /**
+     * Specifies the verbosity mode for the explain output.
+     * @deprecated This API is deprecated in favor of `collection.find().explain()`.
+     */
+    explain?: ExplainOptions['explain'];
+    /* Excluded from this release type: timeoutMode */
+}
+
+/** @public */
+export declare type Flatten<Type> = Type extends ReadonlyArray<infer Item> ? Item : Type;
+
+/**
+ * @public
+ * Configuration options for making an AWS encryption key
+ */
+export declare interface GCPEncryptionKeyOptions {
+    /**
+     * GCP project ID
+     */
+    projectId: string;
+    /**
+     * Location name (e.g. "global")
+     */
+    location: string;
+    /**
+     * Key ring name
+     */
+    keyRing: string;
+    /**
+     * Key name
+     */
+    keyName: string;
+    /**
+     * Key version
+     */
+    keyVersion?: string | undefined;
+    /**
+     * KMS URL, defaults to `https://www.googleapis.com/auth/cloudkms`
+     */
+    endpoint?: string | undefined;
+}
+
+/** @public */
+export declare type GCPKMSProviderConfiguration = {
+    /**
+     * The service account email to authenticate
+     */
+    email: string;
+    /**
+     * A PKCS#8 encrypted key. This can either be a base64 string or a binary representation
+     */
+    privateKey: string | Buffer;
+    /**
+     * If present, a host with optional port. E.g. "example.com" or "example.com:443".
+     * Defaults to "oauth2.googleapis.com"
+     */
+    endpoint?: string | undefined;
+} | {
+    /**
+     * If present, an access token to authenticate with GCP.
+     */
+    accessToken: string;
+};
+
+/** @public */
+export declare type GenericListener = (...args: any[]) => void;
+
+/**
+ * Constructor for a streaming GridFS interface
+ * @public
+ */
+export declare class GridFSBucket extends TypedEventEmitter<GridFSBucketEvents> {
+    /* Excluded from this release type: s */
+    /**
+     * When the first call to openUploadStream is made, the upload stream will
+     * check to see if it needs to create the proper indexes on the chunks and
+     * files collections. This event is fired either when 1) it determines that
+     * no index creation is necessary, 2) when it successfully creates the
+     * necessary indexes.
+     * @event
+     */
+    static readonly INDEX: "index";
+    constructor(db: Db, options?: GridFSBucketOptions);
+    /**
+     * Returns a writable stream (GridFSBucketWriteStream) for writing
+     * buffers to GridFS. The stream's 'id' property contains the resulting
+     * file's id.
+     *
+     * @param filename - The value of the 'filename' key in the files doc
+     * @param options - Optional settings.
+     */
+    openUploadStream(filename: string, options?: GridFSBucketWriteStreamOptions): GridFSBucketWriteStream;
+    /**
+     * Returns a writable stream (GridFSBucketWriteStream) for writing
+     * buffers to GridFS for a custom file id. The stream's 'id' property contains the resulting
+     * file's id.
+     */
+    openUploadStreamWithId(id: ObjectId, filename: string, options?: GridFSBucketWriteStreamOptions): GridFSBucketWriteStream;
+    /** Returns a readable stream (GridFSBucketReadStream) for streaming file data from GridFS. */
+    openDownloadStream(id: ObjectId, options?: GridFSBucketReadStreamOptions): GridFSBucketReadStream;
+    /**
+     * Deletes a file with the given id
+     *
+     * @param id - The id of the file doc
+     */
+    delete(id: ObjectId, options?: {
+        timeoutMS: number;
+    }): Promise<void>;
+    /** Convenience wrapper around find on the files collection */
+    find(filter?: Filter<GridFSFile>, options?: FindOptions): FindCursor<GridFSFile>;
+    /**
+     * Returns a readable stream (GridFSBucketReadStream) for streaming the
+     * file with the given name from GridFS. If there are multiple files with
+     * the same name, this will stream the most recent file with the given name
+     * (as determined by the `uploadDate` field). You can set the `revision`
+     * option to change this behavior.
+     */
+    openDownloadStreamByName(filename: string, options?: GridFSBucketReadStreamOptionsWithRevision): GridFSBucketReadStream;
+    /**
+     * Renames the file with the given _id to the given string
+     *
+     * @param id - the id of the file to rename
+     * @param filename - new name for the file
+     */
+    rename(id: ObjectId, filename: string, options?: {
+        timeoutMS: number;
+    }): Promise<void>;
+    /** Removes this bucket's files collection, followed by its chunks collection. */
+    drop(options?: {
+        timeoutMS: number;
+    }): Promise<void>;
+}
+
+/** @public */
+export declare type GridFSBucketEvents = {
+    index(): void;
+};
+
+/** @public */
+export declare interface GridFSBucketOptions extends WriteConcernOptions {
+    /** The 'files' and 'chunks' collections will be prefixed with the bucket name followed by a dot. */
+    bucketName?: string;
+    /** Number of bytes stored in each chunk. Defaults to 255KB */
+    chunkSizeBytes?: number;
+    /** Read preference to be passed to read operations */
+    readPreference?: ReadPreference;
+    /**
+     * @experimental
+     * Specifies the lifetime duration of a gridFS stream. If any async operations are in progress
+     * when this timeout expires, the stream will throw a timeout error.
+     */
+    timeoutMS?: number;
+}
+
+/* Excluded from this release type: GridFSBucketPrivate */
+
+/**
+ * A readable stream that enables you to read buffers from GridFS.
+ *
+ * Do not instantiate this class directly. Use `openDownloadStream()` instead.
+ * @public
+ */
+export declare class GridFSBucketReadStream extends Readable {
+    /* Excluded from this release type: s */
+    /**
+     * Fires when the stream loaded the file document corresponding to the provided id.
+     * @event
+     */
+    static readonly FILE: "file";
+    /* Excluded from this release type: __constructor */
+    /* Excluded from this release type: _read */
+    /**
+     * Sets the 0-based offset in bytes to start streaming from. Throws
+     * an error if this stream has entered flowing mode
+     * (e.g. if you've already called `on('data')`)
+     *
+     * @param start - 0-based offset in bytes to start streaming from
+     */
+    start(start?: number): this;
+    /**
+     * Sets the 0-based offset in bytes to start streaming from. Throws
+     * an error if this stream has entered flowing mode
+     * (e.g. if you've already called `on('data')`)
+     *
+     * @param end - Offset in bytes to stop reading at
+     */
+    end(end?: number): this;
+    /**
+     * Marks this stream as aborted (will never push another `data` event)
+     * and kills the underlying cursor. Will emit the 'end' event, and then
+     * the 'close' event once the cursor is successfully killed.
+     */
+    abort(): Promise<void>;
+}
+
+/** @public */
+export declare interface GridFSBucketReadStreamOptions {
+    sort?: Sort;
+    skip?: number;
+    /**
+     * 0-indexed non-negative byte offset from the beginning of the file
+     */
+    start?: number;
+    /**
+     * 0-indexed non-negative byte offset to the end of the file contents
+     * to be returned by the stream. `end` is non-inclusive
+     */
+    end?: number;
+    /**
+     * @experimental
+     * Specifies the time an operation will run until it throws a timeout error
+     */
+    timeoutMS?: number;
+}
+
+/** @public */
+export declare interface GridFSBucketReadStreamOptionsWithRevision extends GridFSBucketReadStreamOptions {
+    /** The revision number relative to the oldest file with the given filename. 0
+     * gets you the oldest file, 1 gets you the 2nd oldest, -1 gets you the
+     * newest. */
+    revision?: number;
+}
+
+/* Excluded from this release type: GridFSBucketReadStreamPrivate */
+
+/**
+ * A writable stream that enables you to write buffers to GridFS.
+ *
+ * Do not instantiate this class directly. Use `openUploadStream()` instead.
+ * @public
+ */
+export declare class GridFSBucketWriteStream extends Writable {
+    bucket: GridFSBucket;
+    /** A Collection instance where the file's chunks are stored */
+    chunks: Collection<GridFSChunk>;
+    /** A Collection instance where the file's GridFSFile document is stored */
+    files: Collection<GridFSFile>;
+    /** The name of the file */
+    filename: string;
+    /** Options controlling the metadata inserted along with the file */
+    options: GridFSBucketWriteStreamOptions;
+    /** Indicates the stream is finished uploading */
+    done: boolean;
+    /** The ObjectId used for the `_id` field on the GridFSFile document */
+    id: ObjectId;
+    /** The number of bytes that each chunk will be limited to */
+    chunkSizeBytes: number;
+    /** Space used to store a chunk currently being inserted */
+    bufToStore: Buffer;
+    /** Accumulates the number of bytes inserted as the stream uploads chunks */
+    length: number;
+    /** Accumulates the number of chunks inserted as the stream uploads file contents */
+    n: number;
+    /** Tracks the current offset into the buffered bytes being uploaded */
+    pos: number;
+    /** Contains a number of properties indicating the current state of the stream */
+    state: {
+        /** If set the stream has ended */
+        streamEnd: boolean;
+        /** Indicates the number of chunks that still need to be inserted to exhaust the current buffered data */
+        outstandingRequests: number;
+        /** If set an error occurred during insertion */
+        errored: boolean;
+        /** If set the stream was intentionally aborted */
+        aborted: boolean;
+    };
+    /** The write concern setting to be used with every insert operation */
+    writeConcern?: WriteConcern;
+    /**
+     * The document containing information about the inserted file.
+     * This property is defined _after_ the finish event has been emitted.
+     * It will remain `null` if an error occurs.
+     *
+     * @example
+     * ```ts
+     * fs.createReadStream('file.txt')
+     *   .pipe(bucket.openUploadStream('file.txt'))
+     *   .on('finish', function () {
+     *     console.log(this.gridFSFile)
+     *   })
+     * ```
+     */
+    gridFSFile: GridFSFile | null;
+    /* Excluded from this release type: timeoutContext */
+    /* Excluded from this release type: __constructor */
+    /* Excluded from this release type: _construct */
+    /* Excluded from this release type: _write */
+    /* Excluded from this release type: _final */
+    /**
+     * Places this write stream into an aborted state (all future writes fail)
+     * and deletes all chunks that have already been written.
+     */
+    abort(): Promise<void>;
+}
+
+/** @public */
+export declare interface GridFSBucketWriteStreamOptions extends WriteConcernOptions {
+    /** Overwrite this bucket's chunkSizeBytes for this file */
+    chunkSizeBytes?: number;
+    /** Custom file id for the GridFS file. */
+    id?: ObjectId;
+    /** Object to store in the file document's `metadata` field */
+    metadata?: Document;
+    /**
+     * String to store in the file document's `contentType` field.
+     * @deprecated Will be removed in the next major version. Add a contentType field to the metadata document instead.
+     */
+    contentType?: string;
+    /**
+     * Array of strings to store in the file document's `aliases` field.
+     * @deprecated Will be removed in the next major version. Add an aliases field to the metadata document instead.
+     */
+    aliases?: string[];
+    /**
+     * @experimental
+     * Specifies the time an operation will run until it throws a timeout error
+     */
+    timeoutMS?: number;
+}
+
+/** @public */
+export declare interface GridFSChunk {
+    _id: ObjectId;
+    files_id: ObjectId;
+    n: number;
+    data: Buffer | Uint8Array;
+}
+
+/** @public */
+export declare interface GridFSFile {
+    _id: ObjectId;
+    length: number;
+    chunkSize: number;
+    filename: string;
+    metadata?: Document;
+    uploadDate: Date;
+    /** @deprecated Will be removed in the next major version. */
+    contentType?: string;
+    /** @deprecated Will be removed in the next major version. */
+    aliases?: string[];
+}
+
+/** @public */
+export declare const GSSAPICanonicalizationValue: Readonly<{
+    readonly on: true;
+    readonly off: false;
+    readonly none: "none";
+    readonly forward: "forward";
+    readonly forwardAndReverse: "forwardAndReverse";
+}>;
+
+/** @public */
+export declare type GSSAPICanonicalizationValue = (typeof GSSAPICanonicalizationValue)[keyof typeof GSSAPICanonicalizationValue];
+
+/* Excluded from this release type: HandshakeDocument */
+
+/** @public */
+export declare interface HedgeOptions {
+    /** Explicitly enable or disable hedged reads. */
+    enabled?: boolean;
+}
+
+/** @public */
+export declare type Hint = string | Document;
+
+/** @public */
+export declare class HostAddress {
+    host: string | undefined;
+    port: number | undefined;
+    socketPath: string | undefined;
+    isIPv6: boolean;
+    constructor(hostString: string);
+    inspect(): string;
+    toString(): string;
+    static fromString(this: void, s: string): HostAddress;
+    static fromHostPort(host: string, port: number): HostAddress;
+    static fromSrvRecord({ name, port }: SrvRecord): HostAddress;
+    toHostPort(): {
+        host: string;
+        port: number;
+    };
+}
+
+/**
+ * The information returned by the server on the IDP server.
+ * @public
+ */
+export declare interface IdPInfo {
+    /**
+     * A URL which describes the Authentication Server. This identifier should
+     * be the iss of provided access tokens, and be viable for RFC8414 metadata
+     * discovery and RFC9207 identification.
+     */
+    issuer: string;
+    /** A unique client ID for this OIDC client. */
+    clientId: string;
+    /** A list of additional scopes to request from IdP. */
+    requestScopes?: string[];
+}
+
+/**
+ * The response from the IdP server with the access token and
+ * optional expiration time and refresh token.
+ * @public
+ */
+export declare interface IdPServerResponse {
+    /** The OIDC access token. */
+    accessToken: string;
+    /** The time when the access token expires. For future use. */
+    expiresInSeconds?: number;
+    /** The refresh token, if applicable, to be used by the callback to request a new token from the issuer. */
+    refreshToken?: string;
+}
+
+/** @public */
+export declare interface IndexDescription extends Pick<CreateIndexesOptions, 'background' | 'unique' | 'partialFilterExpression' | 'sparse' | 'hidden' | 'expireAfterSeconds' | 'storageEngine' | 'version' | 'weights' | 'default_language' | 'language_override' | 'textIndexVersion' | '2dsphereIndexVersion' | 'bits' | 'min' | 'max' | 'bucketSize' | 'wildcardProjection'> {
+    collation?: CollationOptions;
+    name?: string;
+    key: {
+        [key: string]: IndexDirection;
+    } | Map<string, IndexDirection>;
+}
+
+/** @public */
+export declare type IndexDescriptionCompact = Record<string, [name: string, direction: IndexDirection][]>;
+
+/**
+ * @public
+ * The index information returned by the listIndexes command. https://www.mongodb.com/docs/manual/reference/command/listIndexes/#mongodb-dbcommand-dbcmd.listIndexes
+ */
+export declare type IndexDescriptionInfo = Omit<IndexDescription, 'key' | 'version'> & {
+    key: {
+        [key: string]: IndexDirection;
+    };
+    v?: IndexDescription['version'];
+} & Document;
+
+/** @public */
+export declare type IndexDirection = -1 | 1 | '2d' | '2dsphere' | 'text' | 'geoHaystack' | 'hashed' | number;
+
+/** @public */
+export declare interface IndexInformationOptions extends ListIndexesOptions {
+    /**
+     * When `true`, an array of index descriptions is returned.
+     * When `false`, the driver returns an object that with keys corresponding to index names with values
+     * corresponding to the entries of the indexes' key.
+     *
+     * For example, the given the following indexes:
+     * ```
+     * [ { name: 'a_1', key: { a: 1 } }, { name: 'b_1_c_1' , key: { b: 1, c: 1 } }]
+     * ```
+     *
+     * When `full` is `true`, the above array is returned.  When `full` is `false`, the following is returned:
+     * ```
+     * {
+     *   'a_1': [['a', 1]],
+     *   'b_1_c_1': [['b', 1], ['c', 1]],
+     * }
+     * ```
+     */
+    full?: boolean;
+}
+
+/** @public */
+export declare type IndexSpecification = OneOrMore<string | [string, IndexDirection] | {
+    [key: string]: IndexDirection;
+} | Map<string, IndexDirection>>;
+
+/** Given an object shaped type, return the type of the _id field or default to ObjectId @public */
+export declare type InferIdType<TSchema> = TSchema extends {
+    _id: infer IdType;
+} ? Record<any, never> extends IdType ? never : IdType : TSchema extends {
+    _id?: infer IdType;
+} ? unknown extends IdType ? ObjectId : IdType : ObjectId;
+
+/* Excluded from this release type: InitialCursorResponse */
+
+/** @public */
+export declare interface InsertManyResult<TSchema = Document> {
+    /** Indicates whether this write result was acknowledged. If not, then all other members of this result will be undefined */
+    acknowledged: boolean;
+    /** The number of inserted documents for this operations */
+    insertedCount: number;
+    /** Map of the index of the inserted document to the id of the inserted document */
+    insertedIds: {
+        [key: number]: InferIdType<TSchema>;
+    };
+}
+
+/** @public */
+export declare interface InsertOneModel<TSchema extends Document = Document> {
+    /** The document to insert. */
+    document: OptionalId<TSchema>;
+}
+
+/** @public */
+export declare interface InsertOneOptions extends CommandOperationOptions {
+    /** Allow driver to bypass schema validation. */
+    bypassDocumentValidation?: boolean;
+    /** Force server to assign _id values instead of driver. */
+    forceServerObjectId?: boolean;
+}
+
+/** @public */
+export declare interface InsertOneResult<TSchema = Document> {
+    /** Indicates whether this write result was acknowledged. If not, then all other members of this result will be undefined */
+    acknowledged: boolean;
+    /** The identifier that was inserted. If the server generated the identifier, this value will be null as the driver does not have access to that data */
+    insertedId: InferIdType<TSchema>;
+}
+
+export { Int32 }
+
+/** @public */
+export declare type IntegerType = number | Int32 | Long | bigint;
+
+/* Excluded from this release type: InternalAbstractCursorOptions */
+
+/** @public */
+export declare type IsAny<Type, ResultIfAny, ResultIfNotAny> = true extends false & Type ? ResultIfAny : ResultIfNotAny;
+
+/**
+ * Helper types for dot-notation filter attributes
+ */
+/** @public */
+export declare type Join<T extends unknown[], D extends string> = T extends [] ? '' : T extends [string | number] ? `${T[0]}` : T extends [string | number, ...infer R] ? `${T[0]}${D}${Join<R, D>}` : string;
+
+/* Excluded from this release type: JSTypeOf */
+
+/* Excluded from this release type: kBeforeHandshake */
+
+/* Excluded from this release type: kCancellationToken */
+
+/* Excluded from this release type: kCancellationToken_2 */
+
+/* Excluded from this release type: kCancelled */
+
+/* Excluded from this release type: kCancelled_2 */
+
+/* Excluded from this release type: kCheckedOut */
+
+/* Excluded from this release type: kClosed */
+
+/* Excluded from this release type: kConnectionCounter */
+
+/* Excluded from this release type: kConnections */
+
+/* Excluded from this release type: kCursorStream */
+
+/* Excluded from this release type: kDecorateResult */
+
+/* Excluded from this release type: kErrorLabels */
+
+/** @public */
+export declare type KeysOfAType<TSchema, Type> = {
+    [key in keyof TSchema]: NonNullable<TSchema[key]> extends Type ? key : never;
+}[keyof TSchema];
+
+/** @public */
+export declare type KeysOfOtherType<TSchema, Type> = {
+    [key in keyof TSchema]: NonNullable<TSchema[key]> extends Type ? never : key;
+}[keyof TSchema];
+
+/* Excluded from this release type: kGeneration */
+
+/* Excluded from this release type: kInternalClient */
+
+/* Excluded from this release type: kMetrics */
+
+/* Excluded from this release type: kMinPoolSizeTimer */
+
+/**
+ * @public
+ * Configuration options for making a KMIP encryption key
+ */
+export declare interface KMIPEncryptionKeyOptions {
+    /**
+     * keyId is the KMIP Unique Identifier to a 96 byte KMIP Secret Data managed object.
+     *
+     * If keyId is omitted, a random 96 byte KMIP Secret Data managed object will be created.
+     */
+    keyId?: string;
+    /**
+     * Host with optional port.
+     */
+    endpoint?: string;
+    /**
+     * If true, this key should be decrypted by the KMIP server.
+     *
+     * Requires `mongodb-client-encryption>=6.0.1`.
+     */
+    delegated?: boolean;
+}
+
+/** @public */
+export declare interface KMIPKMSProviderConfiguration {
+    /**
+     * The output endpoint string.
+     * The endpoint consists of a hostname and port separated by a colon.
+     * E.g. "example.com:123". A port is always present.
+     */
+    endpoint?: string;
+}
+
+/* Excluded from this release type: kMode */
+
+/* Excluded from this release type: kMonitorId */
+
+/**
+ * @public
+ * Configuration options that are used by specific KMS providers during key generation, encryption, and decryption.
+ *
+ * Named KMS providers _are not supported_ for automatic KMS credential fetching.
+ */
+export declare interface KMSProviders {
+    /**
+     * Configuration options for using 'aws' as your KMS provider
+     */
+    aws?: AWSKMSProviderConfiguration | Record<string, never>;
+    [key: `aws:${string}`]: AWSKMSProviderConfiguration;
+    /**
+     * Configuration options for using 'local' as your KMS provider
+     */
+    local?: LocalKMSProviderConfiguration;
+    [key: `local:${string}`]: LocalKMSProviderConfiguration;
+    /**
+     * Configuration options for using 'kmip' as your KMS provider
+     */
+    kmip?: KMIPKMSProviderConfiguration;
+    [key: `kmip:${string}`]: KMIPKMSProviderConfiguration;
+    /**
+     * Configuration options for using 'azure' as your KMS provider
+     */
+    azure?: AzureKMSProviderConfiguration | Record<string, never>;
+    [key: `azure:${string}`]: AzureKMSProviderConfiguration;
+    /**
+     * Configuration options for using 'gcp' as your KMS provider
+     */
+    gcp?: GCPKMSProviderConfiguration | Record<string, never>;
+    [key: `gcp:${string}`]: GCPKMSProviderConfiguration;
+}
+
+/* Excluded from this release type: kOptions */
+
+/* Excluded from this release type: kPending */
+
+/* Excluded from this release type: kPinnedConnection */
+
+/* Excluded from this release type: kPoolState */
+
+/* Excluded from this release type: kProcessingWaitQueue */
+
+/* Excluded from this release type: kServer */
+
+/* Excluded from this release type: kServer_2 */
+
+/* Excluded from this release type: kServerError */
+
+/* Excluded from this release type: kServerSession */
+
+/* Excluded from this release type: kServiceGenerations */
+
+/* Excluded from this release type: kSession */
+
+/* Excluded from this release type: kSnapshotEnabled */
+
+/* Excluded from this release type: kSnapshotTime */
+
+/* Excluded from this release type: kTxnNumberIncrement */
+
+/* Excluded from this release type: kWaitQueue */
+
+/* Excluded from this release type: kWaitQueue_2 */
+
+/* Excluded from this release type: LegacyTimeoutContext */
+
+/* Excluded from this release type: LegacyTimeoutContextOptions */
+
+/** @public */
+export declare const LEGAL_TCP_SOCKET_OPTIONS: readonly ["autoSelectFamily", "autoSelectFamilyAttemptTimeout", "family", "hints", "localAddress", "localPort", "lookup"];
+
+/** @public */
+export declare const LEGAL_TLS_SOCKET_OPTIONS: readonly ["allowPartialTrustChain", "ALPNProtocols", "ca", "cert", "checkServerIdentity", "ciphers", "crl", "ecdhCurve", "key", "minDHSize", "passphrase", "pfx", "rejectUnauthorized", "secureContext", "secureProtocol", "servername", "session"];
+
+/* Excluded from this release type: List */
+
+/** @public */
+export declare class ListCollectionsCursor<T extends Pick<CollectionInfo, 'name' | 'type'> | CollectionInfo = Pick<CollectionInfo, 'name' | 'type'> | CollectionInfo> extends AbstractCursor<T> {
+    parent: Db;
+    filter: Document;
+    options?: ListCollectionsOptions;
+    constructor(db: Db, filter: Document, options?: ListCollectionsOptions);
+    clone(): ListCollectionsCursor<T>;
+    /* Excluded from this release type: _initialize */
+}
+
+/** @public */
+export declare interface ListCollectionsOptions extends Omit<CommandOperationOptions, 'writeConcern'> {
+    /** Since 4.0: If true, will only return the collection name in the response, and will omit additional info */
+    nameOnly?: boolean;
+    /** Since 4.0: If true and nameOnly is true, allows a user without the required privilege (i.e. listCollections action on the database) to run the command when access control is enforced. */
+    authorizedCollections?: boolean;
+    /** The batchSize for the returned command cursor or if pre 2.8 the systems batch collection */
+    batchSize?: number;
+    /* Excluded from this release type: timeoutMode */
+    /* Excluded from this release type: timeoutContext */
+}
+
+/** @public */
+export declare interface ListDatabasesOptions extends CommandOperationOptions {
+    /** A query predicate that determines which databases are listed */
+    filter?: Document;
+    /** A flag to indicate whether the command should return just the database names, or return both database names and size information */
+    nameOnly?: boolean;
+    /** A flag that determines which databases are returned based on the user privileges when access control is enabled */
+    authorizedDatabases?: boolean;
+}
+
+/** @public */
+export declare interface ListDatabasesResult {
+    databases: ({
+        name: string;
+        sizeOnDisk?: number;
+        empty?: boolean;
+    } & Document)[];
+    totalSize?: number;
+    totalSizeMb?: number;
+    ok: 1 | 0;
+}
+
+/** @public */
+export declare class ListIndexesCursor extends AbstractCursor {
+    parent: Collection;
+    options?: ListIndexesOptions;
+    constructor(collection: Collection, options?: ListIndexesOptions);
+    clone(): ListIndexesCursor;
+    /* Excluded from this release type: _initialize */
+}
+
+/** @public */
+export declare type ListIndexesOptions = AbstractCursorOptions & {
+    /* Excluded from this release type: omitMaxTimeMS */
+};
+
+/** @public */
+export declare class ListSearchIndexesCursor extends AggregationCursor<{
+    name: string;
+}> {
+    /* Excluded from this release type: __constructor */
+}
+
+/** @public */
+export declare type ListSearchIndexesOptions = Omit<AggregateOptions, 'readConcern' | 'writeConcern'>;
+
+/** @public */
+export declare interface LocalKMSProviderConfiguration {
+    /**
+     * The master key used to encrypt/decrypt data keys.
+     * A 96-byte long Buffer or base64 encoded string.
+     */
+    key: Binary | Uint8Array | string;
+}
+
+/* Excluded from this release type: Log */
+
+/* Excluded from this release type: LogComponentSeveritiesClientOptions */
+
+/* Excluded from this release type: LogConvertible */
+
+/* Excluded from this release type: Loggable */
+
+/* Excluded from this release type: LoggableCommandFailedEvent */
+
+/* Excluded from this release type: LoggableCommandSucceededEvent */
+
+/* Excluded from this release type: LoggableEvent */
+
+/* Excluded from this release type: LoggableServerHeartbeatFailedEvent */
+
+/* Excluded from this release type: LoggableServerHeartbeatStartedEvent */
+
+/* Excluded from this release type: LoggableServerHeartbeatSucceededEvent */
+export { Long }
+
+/** @public */
+export declare type MatchKeysAndValues<TSchema> = Readonly<Partial<TSchema>> & Record<string, any>;
+
+export { MaxKey }
+
+/* Excluded from this release type: MessageHeader */
+export { MinKey }
+
+/** @public */
+export declare interface ModifyResult<TSchema = Document> {
+    value: WithId<TSchema> | null;
+    lastErrorObject?: Document;
+    ok: 0 | 1;
+}
+
+/** @public */
+export declare const MONGO_CLIENT_EVENTS: readonly ["connectionPoolCreated", "connectionPoolReady", "connectionPoolCleared", "connectionPoolClosed", "connectionCreated", "connectionReady", "connectionClosed", "connectionCheckOutStarted", "connectionCheckOutFailed", "connectionCheckedOut", "connectionCheckedIn", "commandStarted", "commandSucceeded", "commandFailed", "serverOpening", "serverClosed", "serverDescriptionChanged", "topologyOpening", "topologyClosed", "topologyDescriptionChanged", "error", "timeout", "close", "serverHeartbeatStarted", "serverHeartbeatSucceeded", "serverHeartbeatFailed"];
+
+/**
+ * An error generated when the driver API is used incorrectly
+ *
+ * @privateRemarks
+ * Should **never** be directly instantiated
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoAPIError extends MongoDriverError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, options?: {
+        cause?: Error;
+    });
+    get name(): string;
+}
+
+/**
+ * A error generated when the user attempts to authenticate
+ * via AWS, but fails
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoAWSError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, options?: {
+        cause?: Error;
+    });
+    get name(): string;
+}
+
+/**
+ * A error generated when the user attempts to authenticate
+ * via Azure, but fails.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoAzureError extends MongoOIDCError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/**
+ * An error generated when a batch command is re-executed after one of the commands in the batch
+ * has failed
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoBatchReExecutionError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message?: string);
+    get name(): string;
+}
+
+/**
+ * An error indicating an unsuccessful Bulk Write
+ * @public
+ * @category Error
+ */
+export declare class MongoBulkWriteError extends MongoServerError {
+    result: BulkWriteResult;
+    writeErrors: OneOrMore<WriteError>;
+    err?: WriteConcernError;
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(error: {
+        message: string;
+        code: number;
+        writeErrors?: WriteError[];
+    } | WriteConcernError | AnyError, result: BulkWriteResult);
+    get name(): string;
+    /** Number of documents inserted. */
+    get insertedCount(): number;
+    /** Number of documents matched for update. */
+    get matchedCount(): number;
+    /** Number of documents modified. */
+    get modifiedCount(): number;
+    /** Number of documents deleted. */
+    get deletedCount(): number;
+    /** Number of documents upserted. */
+    get upsertedCount(): number;
+    /** Inserted document generated Id's, hash key is the index of the originating operation */
+    get insertedIds(): {
+        [key: number]: any;
+    };
+    /** Upserted document generated Id's, hash key is the index of the originating operation */
+    get upsertedIds(): {
+        [key: number]: any;
+    };
+}
+
+/**
+ * An error generated when a ChangeStream operation fails to execute.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoChangeStreamError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/**
+ * The **MongoClient** class is a class that allows for making Connections to MongoDB.
+ * @public
+ *
+ * @remarks
+ * The programmatically provided options take precedence over the URI options.
+ *
+ * @example
+ * ```ts
+ * import { MongoClient } from 'mongodb';
+ *
+ * // Enable command monitoring for debugging
+ * const client = new MongoClient('mongodb://localhost:27017', { monitorCommands: true });
+ *
+ * client.on('commandStarted', started => console.log(started));
+ * client.db().collection('pets');
+ * await client.insertOne({ name: 'spot', kind: 'dog' });
+ * ```
+ */
+export declare class MongoClient extends TypedEventEmitter<MongoClientEvents> implements AsyncDisposable_2 {
+    /* Excluded from this release type: s */
+    /* Excluded from this release type: topology */
+    /* Excluded from this release type: mongoLogger */
+    /* Excluded from this release type: connectionLock */
+    /* Excluded from this release type: [kOptions] */
+    constructor(url: string, options?: MongoClientOptions);
+    /* Excluded from this release type: [Symbol.asyncDispose] */
+    /* Excluded from this release type: asyncDispose */
+    /* Excluded from this release type: checkForNonGenuineHosts */
+    /** @see MongoOptions */
+    get options(): Readonly<MongoOptions>;
+    get serverApi(): Readonly<ServerApi | undefined>;
+    /* Excluded from this release type: monitorCommands */
+    /* Excluded from this release type: monitorCommands */
+    /* Excluded from this release type: autoEncrypter */
+    get readConcern(): ReadConcern | undefined;
+    get writeConcern(): WriteConcern | undefined;
+    get readPreference(): ReadPreference;
+    get bsonOptions(): BSONSerializeOptions;
+    get timeoutMS(): number | undefined;
+    /**
+     * Executes a client bulk write operation, available on server 8.0+.
+     * @param models - The client bulk write models.
+     * @param options - The client bulk write options.
+     * @returns A ClientBulkWriteResult for acknowledged writes and ok: 1 for unacknowledged writes.
+     */
+    bulkWrite<SchemaMap extends Record<string, Document> = Record<string, Document>>(models: ReadonlyArray<ClientBulkWriteModel<SchemaMap>>, options?: ClientBulkWriteOptions): Promise<ClientBulkWriteResult>;
+    /**
+     * Connect to MongoDB using a url
+     *
+     * @remarks
+     * Calling `connect` is optional since the first operation you perform will call `connect` if it's needed.
+     * `timeoutMS` will bound the time any operation can take before throwing a timeout error.
+     * However, when the operation being run is automatically connecting your `MongoClient` the `timeoutMS` will not apply to the time taken to connect the MongoClient.
+     * This means the time to setup the `MongoClient` does not count against `timeoutMS`.
+     * If you are using `timeoutMS` we recommend connecting your client explicitly in advance of any operation to avoid this inconsistent execution time.
+     *
+     * @see docs.mongodb.org/manual/reference/connection-string/
+     */
+    connect(): Promise<this>;
+    /* Excluded from this release type: _connect */
+    /**
+     * Cleans up client-side resources used by the MongoCLient and .  This includes:
+     *
+     * - Closes all open, unused connections (see note).
+     * - Ends all in-use sessions with {@link ClientSession#endSession|ClientSession.endSession()}.
+     * - Ends all unused sessions server-side.
+     * - Cleans up any resources being used for auto encryption if auto encryption is enabled.
+     *
+     * @remarks Any in-progress operations are not killed and any connections used by in progress operations
+     * will be cleaned up lazily as operations finish.
+     *
+     * @param force - Force close, emitting no events
+     */
+    close(force?: boolean): Promise<void>;
+    /**
+     * Create a new Db instance sharing the current socket connections.
+     *
+     * @param dbName - The name of the database we want to use. If not provided, use database name from connection string.
+     * @param options - Optional settings for Db construction
+     */
+    db(dbName?: string, options?: DbOptions): Db;
+    /**
+     * Connect to MongoDB using a url
+     *
+     * @remarks
+     * Calling `connect` is optional since the first operation you perform will call `connect` if it's needed.
+     * `timeoutMS` will bound the time any operation can take before throwing a timeout error.
+     * However, when the operation being run is automatically connecting your `MongoClient` the `timeoutMS` will not apply to the time taken to connect the MongoClient.
+     * This means the time to setup the `MongoClient` does not count against `timeoutMS`.
+     * If you are using `timeoutMS` we recommend connecting your client explicitly in advance of any operation to avoid this inconsistent execution time.
+     *
+     * @remarks
+     * The programmatically provided options take precedence over the URI options.
+     *
+     * @see https://www.mongodb.com/docs/manual/reference/connection-string/
+     */
+    static connect(url: string, options?: MongoClientOptions): Promise<MongoClient>;
+    /**
+     * Creates a new ClientSession. When using the returned session in an operation
+     * a corresponding ServerSession will be created.
+     *
+     * @remarks
+     * A ClientSession instance may only be passed to operations being performed on the same
+     * MongoClient it was started from.
+     */
+    startSession(options?: ClientSessionOptions): ClientSession;
+    /**
+     * A convenience method for creating and handling the clean up of a ClientSession.
+     * The session will always be ended when the executor finishes.
+     *
+     * @param executor - An executor function that all operations using the provided session must be invoked in
+     * @param options - optional settings for the session
+     */
+    withSession<T = any>(executor: WithSessionCallback<T>): Promise<T>;
+    withSession<T = any>(options: ClientSessionOptions, executor: WithSessionCallback<T>): Promise<T>;
+    /**
+     * Create a new Change Stream, watching for new changes (insertions, updates,
+     * replacements, deletions, and invalidations) in this cluster. Will ignore all
+     * changes to system collections, as well as the local, admin, and config databases.
+     *
+     * @remarks
+     * watch() accepts two generic arguments for distinct use cases:
+     * - The first is to provide the schema that may be defined for all the data within the current cluster
+     * - The second is to override the shape of the change stream document entirely, if it is not provided the type will default to ChangeStreamDocument of the first argument
+     *
+     * @remarks
+     * When `timeoutMS` is configured for a change stream, it will have different behaviour depending
+     * on whether the change stream is in iterator mode or emitter mode. In both cases, a change
+     * stream will time out if it does not receive a change event within `timeoutMS` of the last change
+     * event.
+     *
+     * Note that if a change stream is consistently timing out when watching a collection, database or
+     * client that is being changed, then this may be due to the server timing out before it can finish
+     * processing the existing oplog. To address this, restart the change stream with a higher
+     * `timeoutMS`.
+     *
+     * If the change stream times out the initial aggregate operation to establish the change stream on
+     * the server, then the client will close the change stream. If the getMore calls to the server
+     * time out, then the change stream will be left open, but will throw a MongoOperationTimeoutError
+     * when in iterator mode and emit an error event that returns a MongoOperationTimeoutError in
+     * emitter mode.
+     *
+     * To determine whether or not the change stream is still open following a timeout, check the
+     * {@link ChangeStream.closed} getter.
+     *
+     * @example
+     * In iterator mode, if a next() call throws a timeout error, it will attempt to resume the change stream.
+     * The next call can just be retried after this succeeds.
+     * ```ts
+     * const changeStream = collection.watch([], { timeoutMS: 100 });
+     * try {
+     *     await changeStream.next();
+     * } catch (e) {
+     *     if (e instanceof MongoOperationTimeoutError && !changeStream.closed) {
+     *       await changeStream.next();
+     *     }
+     *     throw e;
+     * }
+     * ```
+     *
+     * @example
+     * In emitter mode, if the change stream goes `timeoutMS` without emitting a change event, it will
+     * emit an error event that returns a MongoOperationTimeoutError, but will not close the change
+     * stream unless the resume attempt fails. There is no need to re-establish change listeners as
+     * this will automatically continue emitting change events once the resume attempt completes.
+     *
+     * ```ts
+     * const changeStream = collection.watch([], { timeoutMS: 100 });
+     * changeStream.on('change', console.log);
+     * changeStream.on('error', e => {
+     *     if (e instanceof MongoOperationTimeoutError && !changeStream.closed) {
+     *         // do nothing
+     *     } else {
+     *         changeStream.close();
+     *     }
+     * });
+     * ```
+     * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents. This allows for filtering (using $match) and manipulating the change stream documents.
+     * @param options - Optional settings for the command
+     * @typeParam TSchema - Type of the data being detected by the change stream
+     * @typeParam TChange - Type of the whole change stream document emitted
+     */
+    watch<TSchema extends Document = Document, TChange extends Document = ChangeStreamDocument<TSchema>>(pipeline?: Document[], options?: ChangeStreamOptions): ChangeStream<TSchema, TChange>;
+}
+
+/* Excluded from this release type: MongoClientAuthProviders */
+
+/**
+ * An error indicating that an error occurred when processing bulk write results.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoClientBulkWriteCursorError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/**
+ * An error indicating that an error occurred when executing the bulk write.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoClientBulkWriteError extends MongoServerError {
+    /**
+     * Write concern errors that occurred while executing the bulk write. This list may have
+     * multiple items if more than one server command was required to execute the bulk write.
+     */
+    writeConcernErrors: Document[];
+    /**
+     * Errors that occurred during the execution of individual write operations. This map will
+     * contain at most one entry if the bulk write was ordered.
+     */
+    writeErrors: Map<number, ClientBulkWriteError>;
+    /**
+     * The results of any successful operations that were performed before the error was
+     * encountered.
+     */
+    partialResult?: ClientBulkWriteResult;
+    /**
+     * Initialize the client bulk write error.
+     * @param message - The error message.
+     */
+    constructor(message: ErrorDescription);
+    get name(): string;
+}
+
+/**
+ * An error indicating that an error occurred on the client when executing a client bulk write.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoClientBulkWriteExecutionError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/** @public */
+export declare type MongoClientEvents = Pick<TopologyEvents, (typeof MONGO_CLIENT_EVENTS)[number]> & {
+    open(mongoClient: MongoClient): void;
+};
+
+/**
+ * Describes all possible URI query options for the mongo client
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/connection-string
+ */
+export declare interface MongoClientOptions extends BSONSerializeOptions, SupportedNodeConnectionOptions {
+    /** Specifies the name of the replica set, if the mongod is a member of a replica set. */
+    replicaSet?: string;
+    /**
+     * @experimental
+     * Specifies the time an operation will run until it throws a timeout error
+     */
+    timeoutMS?: number;
+    /** Enables or disables TLS/SSL for the connection. */
+    tls?: boolean;
+    /** A boolean to enable or disables TLS/SSL for the connection. (The ssl option is equivalent to the tls option.) */
+    ssl?: boolean;
+    /** Specifies the location of a local .pem file that contains either the client's TLS/SSL certificate and key. */
+    tlsCertificateKeyFile?: string;
+    /** Specifies the password to de-crypt the tlsCertificateKeyFile. */
+    tlsCertificateKeyFilePassword?: string;
+    /** Specifies the location of a local .pem file that contains the root certificate chain from the Certificate Authority. This file is used to validate the certificate presented by the mongod/mongos instance. */
+    tlsCAFile?: string;
+    /** Specifies the location of a local CRL .pem file that contains the client revokation list. */
+    tlsCRLFile?: string;
+    /** Bypasses validation of the certificates presented by the mongod/mongos instance */
+    tlsAllowInvalidCertificates?: boolean;
+    /** Disables hostname validation of the certificate presented by the mongod/mongos instance. */
+    tlsAllowInvalidHostnames?: boolean;
+    /** Disables various certificate validations. */
+    tlsInsecure?: boolean;
+    /** The time in milliseconds to attempt a connection before timing out. */
+    connectTimeoutMS?: number;
+    /** The time in milliseconds to attempt a send or receive on a socket before the attempt times out. */
+    socketTimeoutMS?: number;
+    /** An array or comma-delimited string of compressors to enable network compression for communication between this client and a mongod/mongos instance. */
+    compressors?: CompressorName[] | string;
+    /** An integer that specifies the compression level if using zlib for network compression. */
+    zlibCompressionLevel?: 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | undefined;
+    /** The maximum number of hosts to connect to when using an srv connection string, a setting of `0` means unlimited hosts */
+    srvMaxHosts?: number;
+    /**
+     * Modifies the srv URI to look like:
+     *
+     * `_{srvServiceName}._tcp.{hostname}.{domainname}`
+     *
+     * Querying this DNS URI is expected to respond with SRV records
+     */
+    srvServiceName?: string;
+    /** The maximum number of connections in the connection pool. */
+    maxPoolSize?: number;
+    /** The minimum number of connections in the connection pool. */
+    minPoolSize?: number;
+    /** The maximum number of connections that may be in the process of being established concurrently by the connection pool. */
+    maxConnecting?: number;
+    /** The maximum number of milliseconds that a connection can remain idle in the pool before being removed and closed. */
+    maxIdleTimeMS?: number;
+    /** The maximum time in milliseconds that a thread can wait for a connection to become available. */
+    waitQueueTimeoutMS?: number;
+    /** Specify a read concern for the collection (only MongoDB 3.2 or higher supported) */
+    readConcern?: ReadConcernLike;
+    /** The level of isolation */
+    readConcernLevel?: ReadConcernLevel;
+    /** Specifies the read preferences for this connection */
+    readPreference?: ReadPreferenceMode | ReadPreference;
+    /** Specifies, in seconds, how stale a secondary can be before the client stops using it for read operations. */
+    maxStalenessSeconds?: number;
+    /** Specifies the tags document as a comma-separated list of colon-separated key-value pairs.  */
+    readPreferenceTags?: TagSet[];
+    /** The auth settings for when connection to server. */
+    auth?: Auth;
+    /** Specify the database name associated with the user’s credentials. */
+    authSource?: string;
+    /** Specify the authentication mechanism that MongoDB will use to authenticate the connection. */
+    authMechanism?: AuthMechanism;
+    /** Specify properties for the specified authMechanism as a comma-separated list of colon-separated key-value pairs. */
+    authMechanismProperties?: AuthMechanismProperties;
+    /** The size (in milliseconds) of the latency window for selecting among multiple suitable MongoDB instances. */
+    localThresholdMS?: number;
+    /** Specifies how long (in milliseconds) to block for server selection before throwing an exception.  */
+    serverSelectionTimeoutMS?: number;
+    /** heartbeatFrequencyMS controls when the driver checks the state of the MongoDB deployment. Specify the interval (in milliseconds) between checks, counted from the end of the previous check until the beginning of the next one. */
+    heartbeatFrequencyMS?: number;
+    /** Sets the minimum heartbeat frequency. In the event that the driver has to frequently re-check a server's availability, it will wait at least this long since the previous check to avoid wasted effort. */
+    minHeartbeatFrequencyMS?: number;
+    /** The name of the application that created this MongoClient instance. MongoDB 3.4 and newer will print this value in the server log upon establishing each connection. It is also recorded in the slow query log and profile collections */
+    appName?: string;
+    /** Enables retryable reads. */
+    retryReads?: boolean;
+    /** Enable retryable writes. */
+    retryWrites?: boolean;
+    /** Allow a driver to force a Single topology type with a connection string containing one host */
+    directConnection?: boolean;
+    /** Instruct the driver it is connecting to a load balancer fronting a mongos like service */
+    loadBalanced?: boolean;
+    /**
+     * The write concern w value
+     * @deprecated Please use the `writeConcern` option instead
+     */
+    w?: W;
+    /**
+     * The write concern timeout
+     * @deprecated Please use the `writeConcern` option instead
+     */
+    wtimeoutMS?: number;
+    /**
+     * The journal write concern
+     * @deprecated Please use the `writeConcern` option instead
+     */
+    journal?: boolean;
+    /**
+     * A MongoDB WriteConcern, which describes the level of acknowledgement
+     * requested from MongoDB for write operations.
+     *
+     * @see https://www.mongodb.com/docs/manual/reference/write-concern/
+     */
+    writeConcern?: WriteConcern | WriteConcernSettings;
+    /** TCP Connection no delay */
+    noDelay?: boolean;
+    /** Force server to assign `_id` values instead of driver */
+    forceServerObjectId?: boolean;
+    /** A primary key factory function for generation of custom `_id` keys */
+    pkFactory?: PkFactory;
+    /** Enable command monitoring for this client */
+    monitorCommands?: boolean;
+    /** Server API version */
+    serverApi?: ServerApi | ServerApiVersion;
+    /**
+     * Optionally enable in-use auto encryption
+     *
+     * @remarks
+     *  Automatic encryption is an enterprise only feature that only applies to operations on a collection. Automatic encryption is not supported for operations on a database or view, and operations that are not bypassed will result in error
+     *  (see [libmongocrypt: Auto Encryption Allow-List](https://github.com/mongodb/specifications/blob/master/source/client-side-encryption/client-side-encryption.md#libmongocrypt-auto-encryption-allow-list)). To bypass automatic encryption for all operations, set bypassAutoEncryption=true in AutoEncryptionOpts.
+     *
+     *  Automatic encryption requires the authenticated user to have the [listCollections privilege action](https://www.mongodb.com/docs/manual/reference/command/listCollections/#dbcmd.listCollections).
+     *
+     *  If a MongoClient with a limited connection pool size (i.e a non-zero maxPoolSize) is configured with AutoEncryptionOptions, a separate internal MongoClient is created if any of the following are true:
+     *  - AutoEncryptionOptions.keyVaultClient is not passed.
+     *  - AutoEncryptionOptions.bypassAutomaticEncryption is false.
+     *
+     * If an internal MongoClient is created, it is configured with the same options as the parent MongoClient except minPoolSize is set to 0 and AutoEncryptionOptions is omitted.
+     */
+    autoEncryption?: AutoEncryptionOptions;
+    /** Allows a wrapping driver to amend the client metadata generated by the driver to include information about the wrapping driver */
+    driverInfo?: DriverInfo;
+    /** Configures a Socks5 proxy host used for creating TCP connections. */
+    proxyHost?: string;
+    /** Configures a Socks5 proxy port used for creating TCP connections. */
+    proxyPort?: number;
+    /** Configures a Socks5 proxy username when the proxy in proxyHost requires username/password authentication. */
+    proxyUsername?: string;
+    /** Configures a Socks5 proxy password when the proxy in proxyHost requires username/password authentication. */
+    proxyPassword?: string;
+    /** Instructs the driver monitors to use a specific monitoring mode */
+    serverMonitoringMode?: ServerMonitoringMode;
+    /* Excluded from this release type: srvPoller */
+    /* Excluded from this release type: connectionType */
+    /* Excluded from this release type: mongodbLogPath */
+    /* Excluded from this release type: mongodbLogComponentSeverities */
+    /* Excluded from this release type: mongodbLogMaxDocumentLength */
+    /* Excluded from this release type: __index */
+}
+
+/* Excluded from this release type: MongoClientPrivate */
+
+/**
+ * An error generated when a feature that is not enabled or allowed for the current server
+ * configuration is used
+ *
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoCompatibilityError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/**
+ * A representation of the credentials used by MongoDB
+ * @public
+ */
+export declare class MongoCredentials {
+    /** The username used for authentication */
+    readonly username: string;
+    /** The password used for authentication */
+    readonly password: string;
+    /** The database that the user should authenticate against */
+    readonly source: string;
+    /** The method used to authenticate */
+    readonly mechanism: AuthMechanism;
+    /** Special properties used by some types of auth mechanisms */
+    readonly mechanismProperties: AuthMechanismProperties;
+    constructor(options: MongoCredentialsOptions);
+    /** Determines if two MongoCredentials objects are equivalent */
+    equals(other: MongoCredentials): boolean;
+    /**
+     * If the authentication mechanism is set to "default", resolves the authMechanism
+     * based on the server version and server supported sasl mechanisms.
+     *
+     * @param hello - A hello response from the server
+     */
+    resolveAuthMechanism(hello: Document | null): MongoCredentials;
+    validate(): void;
+    static merge(creds: MongoCredentials | undefined, options: Partial<MongoCredentialsOptions>): MongoCredentials;
+}
+
+/** @public */
+export declare interface MongoCredentialsOptions {
+    username?: string;
+    password: string;
+    source: string;
+    db?: string;
+    mechanism?: AuthMechanism;
+    mechanismProperties: AuthMechanismProperties;
+}
+
+/**
+ * @public
+ * An error indicating that mongodb-client-encryption failed to auto-refresh Azure KMS credentials.
+ */
+export declare class MongoCryptAzureKMSRequestError extends MongoCryptError {
+    /** The body of the http response that failed, if present. */
+    body?: Document;
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, body?: Document);
+    get name(): string;
+}
+
+/**
+ * @public
+ * An error indicating that `ClientEncryption.createEncryptedCollection()` failed to create data keys
+ */
+export declare class MongoCryptCreateDataKeyError extends MongoCryptError {
+    encryptedFields: Document;
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(encryptedFields: Document, { cause }: {
+        cause: Error;
+    });
+    get name(): string;
+}
+
+/**
+ * @public
+ * An error indicating that `ClientEncryption.createEncryptedCollection()` failed to create a collection
+ */
+export declare class MongoCryptCreateEncryptedCollectionError extends MongoCryptError {
+    encryptedFields: Document;
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(encryptedFields: Document, { cause }: {
+        cause: Error;
+    });
+    get name(): string;
+}
+
+/* Excluded from this release type: MongocryptdManager */
+
+/**
+ * @public
+ * An error indicating that something went wrong specifically with MongoDB Client Encryption
+ */
+export declare class MongoCryptError extends MongoError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, options?: {
+        cause?: Error;
+    });
+    get name(): string;
+}
+
+/**
+ * @public
+ *
+ * An error indicating an invalid argument was provided to an encryption API.
+ */
+export declare class MongoCryptInvalidArgumentError extends MongoCryptError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/** @public */
+export declare class MongoCryptKMSRequestNetworkTimeoutError extends MongoCryptError {
+    get name(): string;
+}
+
+/**
+ * An error thrown when an attempt is made to read from a cursor that has been exhausted
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoCursorExhaustedError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message?: string);
+    get name(): string;
+}
+
+/**
+ * An error thrown when the user attempts to add options to a cursor that has already been
+ * initialized
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoCursorInUseError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message?: string);
+    get name(): string;
+}
+
+/**
+ * @public
+ *
+ * A class representing a collection's namespace.  This class enforces (through Typescript) that
+ * the `collection` portion of the namespace is defined and should only be
+ * used in scenarios where this can be guaranteed.
+ */
+export declare class MongoDBCollectionNamespace extends MongoDBNamespace {
+    collection: string;
+    constructor(db: string, collection: string);
+    static fromString(namespace?: string): MongoDBCollectionNamespace;
+}
+
+/* Excluded from this release type: MongoDBLogWritable */
+
+/** @public */
+export declare class MongoDBNamespace {
+    db: string;
+    collection?: string | undefined;
+    /**
+     * Create a namespace object
+     *
+     * @param db - database name
+     * @param collection - collection name
+     */
+    constructor(db: string, collection?: string | undefined);
+    toString(): string;
+    withCollection(collection: string): MongoDBCollectionNamespace;
+    static fromString(namespace?: string): MongoDBNamespace;
+}
+
+/* Excluded from this release type: MongoDBResponse */
+
+/* Excluded from this release type: MongoDBResponseConstructor */
+
+/**
+ * An error generated when the driver fails to decompress
+ * data received from the server.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoDecompressionError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/**
+ * An error generated by the driver
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoDriverError extends MongoError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, options?: {
+        cause?: Error;
+    });
+    get name(): string;
+}
+
+/**
+ * @public
+ * @category Error
+ *
+ * @privateRemarks
+ * mongodb-client-encryption has a dependency on this error, it uses the constructor with a string argument
+ */
+export declare class MongoError extends Error {
+    /* Excluded from this release type: [kErrorLabels] */
+    /**
+     * This is a number in MongoServerError and a string in MongoDriverError
+     * @privateRemarks
+     * Define the type override on the subclasses when we can use the override keyword
+     */
+    code?: number | string;
+    topologyVersion?: TopologyVersion;
+    connectionGeneration?: number;
+    cause?: Error;
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, options?: {
+        cause?: Error;
+    });
+    /* Excluded from this release type: buildErrorMessage */
+    get name(): string;
+    /** Legacy name for server error responses */
+    get errmsg(): string;
+    /**
+     * Checks the error to see if it has an error label
+     *
+     * @param label - The error label to check for
+     * @returns returns true if the error has the provided error label
+     */
+    hasErrorLabel(label: string): boolean;
+    addErrorLabel(label: string): void;
+    get errorLabels(): string[];
+}
+
+/** @public */
+export declare const MongoErrorLabel: Readonly<{
+    readonly RetryableWriteError: "RetryableWriteError";
+    readonly TransientTransactionError: "TransientTransactionError";
+    readonly UnknownTransactionCommitResult: "UnknownTransactionCommitResult";
+    readonly ResumableChangeStreamError: "ResumableChangeStreamError";
+    readonly HandshakeError: "HandshakeError";
+    readonly ResetPool: "ResetPool";
+    readonly PoolRequstedRetry: "PoolRequstedRetry";
+    readonly InterruptInUseConnections: "InterruptInUseConnections";
+    readonly NoWritesPerformed: "NoWritesPerformed";
+}>;
+
+/** @public */
+export declare type MongoErrorLabel = (typeof MongoErrorLabel)[keyof typeof MongoErrorLabel];
+
+/**
+ * An error generated when the user attempts to operate
+ * on a session that has expired or has been closed.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoExpiredSessionError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message?: string);
+    get name(): string;
+}
+
+/**
+ * A error generated when the user attempts to authenticate
+ * via GCP, but fails.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoGCPError extends MongoOIDCError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/**
+ * An error generated when a malformed or invalid chunk is
+ * encountered when reading from a GridFSStream.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoGridFSChunkError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/** An error generated when a GridFSStream operation fails to execute.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoGridFSStreamError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/**
+ * An error generated when the user supplies malformed or unexpected arguments
+ * or when a required argument or field is not provided.
+ *
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoInvalidArgumentError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, options?: {
+        cause?: Error;
+    });
+    get name(): string;
+}
+
+/**
+ * A error generated when the user attempts to authenticate
+ * via Kerberos, but fails to connect to the Kerberos client.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoKerberosError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/* Excluded from this release type: MongoLoggableComponent */
+
+/* Excluded from this release type: MongoLogger */
+
+/* Excluded from this release type: MongoLoggerEnvOptions */
+
+/* Excluded from this release type: MongoLoggerMongoClientOptions */
+
+/* Excluded from this release type: MongoLoggerOptions */
+
+/**
+ * An error generated when the user fails to provide authentication credentials before attempting
+ * to connect to a mongo server instance.
+ *
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoMissingCredentialsError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/**
+ * An error generated when a required module or dependency is not present in the local environment
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoMissingDependencyError extends MongoAPIError {
+    dependencyName: string;
+    /** @remarks This property is assigned in the `Error` constructor. */
+    cause: Error;
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, options: {
+        cause: Error;
+        dependencyName: string;
+    });
+    get name(): string;
+}
+
+/**
+ * An error indicating an issue with the network, including TCP errors and timeouts.
+ * @public
+ * @category Error
+ */
+export declare class MongoNetworkError extends MongoError {
+    /* Excluded from this release type: [kBeforeHandshake] */
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, options?: MongoNetworkErrorOptions);
+    get name(): string;
+}
+
+/** @public */
+export declare interface MongoNetworkErrorOptions {
+    /** Indicates the timeout happened before a connection handshake completed */
+    beforeHandshake?: boolean;
+    cause?: Error;
+}
+
+/**
+ * An error indicating a network timeout occurred
+ * @public
+ * @category Error
+ *
+ * @privateRemarks
+ * mongodb-client-encryption has a dependency on this error with an instanceof check
+ */
+export declare class MongoNetworkTimeoutError extends MongoNetworkError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, options?: MongoNetworkErrorOptions);
+    get name(): string;
+}
+
+/**
+ * An error thrown when the user attempts to operate on a database or collection through a MongoClient
+ * that has not yet successfully called the "connect" method
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoNotConnectedError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/**
+ * A error generated when the user attempts to authenticate
+ * via OIDC callbacks, but fails.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoOIDCError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/**
+ * @public
+ * @category Error
+ *
+ * The `MongoOperationTimeoutError` class represents an error that occurs when an operation could not be completed within the specified `timeoutMS`.
+ * It is generated by the driver in support of the "client side operation timeout" feature so inherits from `MongoDriverError`.
+ * When `timeoutMS` is enabled `MongoServerError`s relating to `MaxTimeExpired` errors will be converted to `MongoOperationTimeoutError`
+ *
+ * @example
+ * ```ts
+ * try {
+ *   await blogs.insertOne(blogPost, { timeoutMS: 60_000 })
+ * } catch (error) {
+ *   if (error instanceof MongoOperationTimeoutError) {
+ *     console.log(`Oh no! writer's block!`, error);
+ *   }
+ * }
+ * ```
+ */
+export declare class MongoOperationTimeoutError extends MongoDriverError {
+    get name(): string;
+}
+
+/**
+ * Parsed Mongo Client Options.
+ *
+ * User supplied options are documented by `MongoClientOptions`.
+ *
+ * **NOTE:** The client's options parsing is subject to change to support new features.
+ * This type is provided to aid with inspection of options after parsing, it should not be relied upon programmatically.
+ *
+ * Options are sourced from:
+ * - connection string
+ * - options object passed to the MongoClient constructor
+ * - file system (ex. tls settings)
+ * - environment variables
+ * - DNS SRV records and TXT records
+ *
+ * Not all options may be present after client construction as some are obtained from asynchronous operations.
+ *
+ * @public
+ */
+export declare interface MongoOptions extends Required<Pick<MongoClientOptions, 'autoEncryption' | 'connectTimeoutMS' | 'directConnection' | 'driverInfo' | 'forceServerObjectId' | 'minHeartbeatFrequencyMS' | 'heartbeatFrequencyMS' | 'localThresholdMS' | 'maxConnecting' | 'maxIdleTimeMS' | 'maxPoolSize' | 'minPoolSize' | 'monitorCommands' | 'noDelay' | 'pkFactory' | 'raw' | 'replicaSet' | 'retryReads' | 'retryWrites' | 'serverSelectionTimeoutMS' | 'socketTimeoutMS' | 'srvMaxHosts' | 'srvServiceName' | 'tlsAllowInvalidCertificates' | 'tlsAllowInvalidHostnames' | 'tlsInsecure' | 'waitQueueTimeoutMS' | 'zlibCompressionLevel'>>, SupportedNodeConnectionOptions {
+    appName?: string;
+    hosts: HostAddress[];
+    srvHost?: string;
+    credentials?: MongoCredentials;
+    readPreference: ReadPreference;
+    readConcern: ReadConcern;
+    loadBalanced: boolean;
+    directConnection: boolean;
+    serverApi: ServerApi;
+    compressors: CompressorName[];
+    writeConcern: WriteConcern;
+    dbName: string;
+    metadata: ClientMetadata;
+    /* Excluded from this release type: extendedMetadata */
+    /* Excluded from this release type: autoEncrypter */
+    /* Excluded from this release type: tokenCache */
+    proxyHost?: string;
+    proxyPort?: number;
+    proxyUsername?: string;
+    proxyPassword?: string;
+    serverMonitoringMode: ServerMonitoringMode;
+    /* Excluded from this release type: connectionType */
+    /* Excluded from this release type: authProviders */
+    /* Excluded from this release type: encrypter */
+    /* Excluded from this release type: userSpecifiedAuthSource */
+    /* Excluded from this release type: userSpecifiedReplicaSet */
+    /**
+     * # NOTE ABOUT TLS Options
+     *
+     * If `tls` is provided as an option, it is equivalent to setting the `ssl` option.
+     *
+     * NodeJS native TLS options are passed through to the socket and retain their original types.
+     *
+     * ### Additional options:
+     *
+     * | nodejs native option  | driver spec equivalent option name            | driver option type |
+     * |:----------------------|:----------------------------------------------|:-------------------|
+     * | `ca`                  | `tlsCAFile`                                   | `string`           |
+     * | `crl`                 | `tlsCRLFile`                                  | `string`           |
+     * | `cert`                | `tlsCertificateKeyFile`                       | `string`           |
+     * | `key`                 | `tlsCertificateKeyFile`                       | `string`           |
+     * | `passphrase`          | `tlsCertificateKeyFilePassword`               | `string`           |
+     * | `rejectUnauthorized`  | `tlsAllowInvalidCertificates`                 | `boolean`          |
+     * | `checkServerIdentity` | `tlsAllowInvalidHostnames`                    | `boolean`          |
+     * | see note below        | `tlsInsecure`                                 | `boolean`          |
+     *
+     * If `tlsInsecure` is set to `true`, then it will set the node native options `checkServerIdentity`
+     * to a no-op and `rejectUnauthorized` to `false`.
+     *
+     * If `tlsInsecure` is set to `false`, then it will set the node native options `checkServerIdentity`
+     * to a no-op and `rejectUnauthorized` to the inverse value of `tlsAllowInvalidCertificates`. If
+     * `tlsAllowInvalidCertificates` is not set, then `rejectUnauthorized` will be set to `true`.
+     *
+     * ### Note on `tlsCAFile`, `tlsCertificateKeyFile` and `tlsCRLFile`
+     *
+     * The files specified by the paths passed in to the `tlsCAFile`, `tlsCertificateKeyFile` and `tlsCRLFile`
+     * fields are read lazily on the first call to `MongoClient.connect`. Once these files have been read and
+     * the `ca`, `cert`, `crl` and `key` fields are populated, they will not be read again on subsequent calls to
+     * `MongoClient.connect`. As a result, until the first call to `MongoClient.connect`, the `ca`,
+     * `cert`, `crl` and `key` fields will be undefined.
+     */
+    tls: boolean;
+    tlsCAFile?: string;
+    tlsCRLFile?: string;
+    tlsCertificateKeyFile?: string;
+    /* Excluded from this release type: __index */
+    /* Excluded from this release type: mongoLoggerOptions */
+    /* Excluded from this release type: mongodbLogPath */
+    timeoutMS?: number;
+}
+
+/**
+ * An error used when attempting to parse a value (like a connection string)
+ * @public
+ * @category Error
+ */
+export declare class MongoParseError extends MongoDriverError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/**
+ * An error generated when the driver encounters unexpected input
+ * or reaches an unexpected/invalid internal state.
+ *
+ * @privateRemarks
+ * Should **never** be directly instantiated.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoRuntimeError extends MongoDriverError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, options?: {
+        cause?: Error;
+    });
+    get name(): string;
+}
+
+/**
+ * An error generated when an attempt is made to operate
+ * on a closed/closing server.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoServerClosedError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message?: string);
+    get name(): string;
+}
+
+/**
+ * An error coming from the mongo server
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoServerError extends MongoError {
+    /** Raw error result document returned by server. */
+    errorResponse: ErrorDescription;
+    codeName?: string;
+    writeConcernError?: Document;
+    errInfo?: Document;
+    ok?: number;
+    [key: string]: any;
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: ErrorDescription);
+    get name(): string;
+}
+
+/**
+ * An error signifying a client-side server selection error
+ * @public
+ * @category Error
+ */
+export declare class MongoServerSelectionError extends MongoSystemError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, reason: TopologyDescription);
+    get name(): string;
+}
+
+/**
+ * An error generated when a primary server is marked stale, never directly thrown
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoStalePrimaryError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(serverDescription: ServerDescription, maxSetVersion: number | null, maxElectionId: ObjectId | null, options?: {
+        cause?: Error;
+    });
+    get name(): string;
+}
+
+/**
+ * An error signifying a general system issue
+ * @public
+ * @category Error
+ */
+export declare class MongoSystemError extends MongoError {
+    /** An optional reason context, such as an error saved during flow of monitoring and selecting servers */
+    reason?: TopologyDescription;
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, reason: TopologyDescription);
+    get name(): string;
+}
+
+/**
+ * An error thrown when the user calls a function or method not supported on a tailable cursor
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoTailableCursorError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message?: string);
+    get name(): string;
+}
+
+/**
+ * An error generated when an attempt is made to operate on a
+ * dropped, or otherwise unavailable, database.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoTopologyClosedError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message?: string);
+    get name(): string;
+}
+
+/**
+ * An error generated when the user makes a mistake in the usage of transactions.
+ * (e.g. attempting to commit a transaction with a readPreference other than primary)
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoTransactionError extends MongoAPIError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string);
+    get name(): string;
+}
+
+/**
+ * An error generated when a **parsable** unexpected response comes from the server.
+ * This is generally an error where the driver in a state expecting a certain behavior to occur in
+ * the next message from MongoDB but it receives something else.
+ * This error **does not** represent an issue with wire message formatting.
+ *
+ * #### Example
+ * When an operation fails, it is the driver's job to retry it. It must perform serverSelection
+ * again to make sure that it attempts the operation against a server in a good state. If server
+ * selection returns a server that does not support retryable operations, this error is used.
+ * This scenario is unlikely as retryable support would also have been determined on the first attempt
+ * but it is possible the state change could report a selectable server that does not support retries.
+ *
+ * @public
+ * @category Error
+ */
+export declare class MongoUnexpectedServerResponseError extends MongoRuntimeError {
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(message: string, options?: {
+        cause?: Error;
+    });
+    get name(): string;
+}
+
+/**
+ * An error thrown when the server reports a writeConcernError
+ * @public
+ * @category Error
+ */
+export declare class MongoWriteConcernError extends MongoServerError {
+    /** The result document */
+    result: Document;
+    /**
+     * **Do not use this constructor!**
+     *
+     * Meant for internal use only.
+     *
+     * @remarks
+     * This class is only meant to be constructed within the driver. This constructor is
+     * not subject to semantic versioning compatibility guarantees and may change at any time.
+     *
+     * @public
+     **/
+    constructor(result: WriteConcernErrorResult);
+    get name(): string;
+}
+
+/* Excluded from this release type: Monitor */
+
+/** @public */
+export declare type MonitorEvents = {
+    serverHeartbeatStarted(event: ServerHeartbeatStartedEvent): void;
+    serverHeartbeatSucceeded(event: ServerHeartbeatSucceededEvent): void;
+    serverHeartbeatFailed(event: ServerHeartbeatFailedEvent): void;
+    resetServer(error?: MongoError): void;
+    resetConnectionPool(): void;
+    close(): void;
+} & EventEmitterWithState;
+
+/* Excluded from this release type: MonitorInterval */
+
+/* Excluded from this release type: MonitorIntervalOptions */
+
+/** @public */
+export declare interface MonitorOptions extends Omit<ConnectionOptions, 'id' | 'generation' | 'hostAddress'> {
+    connectTimeoutMS: number;
+    heartbeatFrequencyMS: number;
+    minHeartbeatFrequencyMS: number;
+    serverMonitoringMode: ServerMonitoringMode;
+}
+
+/* Excluded from this release type: MonitorPrivate */
+
+/**
+ * @public
+ * returns tuple of strings (keys to be joined on '.') that represent every path into a schema
+ * https://www.mongodb.com/docs/manual/tutorial/query-embedded-documents/
+ *
+ * @remarks
+ * Through testing we determined that a depth of 8 is safe for the typescript compiler
+ * and provides reasonable compilation times. This number is otherwise not special and
+ * should be changed if issues are found with this level of checking. Beyond this
+ * depth any helpers that make use of NestedPaths should devolve to not asserting any
+ * type safety on the input.
+ */
+export declare type NestedPaths<Type, Depth extends number[]> = Depth['length'] extends 8 ? [] : Type extends string | number | bigint | boolean | Date | RegExp | Buffer | Uint8Array | ((...args: any[]) => any) | {
+    _bsontype: string;
+} ? [] : Type extends ReadonlyArray<infer ArrayType> ? [] | [number, ...NestedPaths<ArrayType, [...Depth, 1]>] : Type extends Map<string, any> ? [string] : Type extends object ? {
+    [Key in Extract<keyof Type, string>]: Type[Key] extends Type ? [Key] : Type extends Type[Key] ? [Key] : Type[Key] extends ReadonlyArray<infer ArrayType> ? Type extends ArrayType ? [Key] : ArrayType extends Type ? [Key] : [
+    Key,
+    ...NestedPaths<Type[Key], [...Depth, 1]>
+    ] : // child is not structured the same as the parent
+    [
+    Key,
+    ...NestedPaths<Type[Key], [...Depth, 1]>
+    ] | [Key];
+}[Extract<keyof Type, string>] : [];
+
+/**
+ * @public
+ * returns keys (strings) for every path into a schema with a value of type
+ * https://www.mongodb.com/docs/manual/tutorial/query-embedded-documents/
+ */
+export declare type NestedPathsOfType<TSchema, Type> = KeysOfAType<{
+    [Property in Join<NestedPaths<TSchema, []>, '.'>]: PropertyType<TSchema, Property>;
+}, Type>;
+
+/**
+ * @public
+ * A type that extends Document but forbids anything that "looks like" an object id.
+ */
+export declare type NonObjectIdLikeDocument = {
+    [key in keyof ObjectIdLike]?: never;
+} & Document;
+
+/** It avoids using fields with not acceptable types @public */
+export declare type NotAcceptedFields<TSchema, FieldType> = {
+    readonly [key in KeysOfOtherType<TSchema, FieldType>]?: never;
+};
+
+/** @public */
+export declare type NumericType = IntegerType | Decimal128 | Double;
+
+export { ObjectId }
+
+/**
+ * The signature of the human or machine callback functions.
+ * @public
+ */
+export declare type OIDCCallbackFunction = (params: OIDCCallbackParams) => Promise<OIDCResponse>;
+
+/**
+ * The parameters that the driver provides to the user supplied
+ * human or machine callback.
+ *
+ * The version number is used to communicate callback API changes that are not breaking but that
+ * users may want to know about and review their implementation. Users may wish to check the version
+ * number and throw an error if their expected version number and the one provided do not match.
+ * @public
+ */
+export declare interface OIDCCallbackParams {
+    /** Optional username. */
+    username?: string;
+    /** The context in which to timeout the OIDC callback. */
+    timeoutContext: AbortSignal;
+    /** The current OIDC API version. */
+    version: 1;
+    /** The IdP information returned from the server. */
+    idpInfo?: IdPInfo;
+    /** The refresh token, if applicable, to be used by the callback to request a new token from the issuer. */
+    refreshToken?: string;
+}
+
+/**
+ * The response required to be returned from the machine or
+ * human callback workflows' callback.
+ * @public
+ */
+export declare interface OIDCResponse {
+    /** The OIDC access token. */
+    accessToken: string;
+    /** The time when the access token expires. For future use. */
+    expiresInSeconds?: number;
+    /** The refresh token, if applicable, to be used by the callback to request a new token from the issuer. */
+    refreshToken?: string;
+}
+
+/* Excluded from this release type: OnDemandDocument */
+
+/* Excluded from this release type: OnDemandDocumentDeserializeOptions */
+
+/** @public */
+export declare type OneOrMore<T> = T | ReadonlyArray<T>;
+
+/** @public */
+export declare type OnlyFieldsOfType<TSchema, FieldType = any, AssignableType = FieldType> = IsAny<TSchema[keyof TSchema], AssignableType extends FieldType ? Record<string, FieldType> : Record<string, AssignableType>, AcceptedFields<TSchema, FieldType, AssignableType> & NotAcceptedFields<TSchema, FieldType> & Record<string, AssignableType>>;
+
+/* Excluded from this release type: OpCompressedRequest */
+
+/** @public */
+export declare interface OperationOptions extends BSONSerializeOptions {
+    /** Specify ClientSession for this command */
+    session?: ClientSession;
+    willRetryWrite?: boolean;
+    /** The preferred read preference (ReadPreference.primary, ReadPreference.primary_preferred, ReadPreference.secondary, ReadPreference.secondary_preferred, ReadPreference.nearest). */
+    readPreference?: ReadPreferenceLike;
+    /* Excluded from this release type: bypassPinningCheck */
+    omitReadPreference?: boolean;
+    /* Excluded from this release type: omitMaxTimeMS */
+    /**
+     * @experimental
+     * Specifies the time an operation will run until it throws a timeout error
+     */
+    timeoutMS?: number;
+}
+
+/* Excluded from this release type: OperationParent */
+
+/**
+ * Represents a specific point in time on a server. Can be retrieved by using `db.command()`
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/method/db.runCommand/#response
+ */
+export declare type OperationTime = Timestamp;
+
+/* Excluded from this release type: OpMsgOptions */
+
+/* Excluded from this release type: OpMsgRequest */
+
+/* Excluded from this release type: OpMsgResponse */
+
+/* Excluded from this release type: OpQueryOptions */
+
+/* Excluded from this release type: OpQueryRequest */
+
+/* Excluded from this release type: OpReply */
+
+/**
+ * Add an optional _id field to an object shaped type
+ * @public
+ */
+export declare type OptionalId<TSchema> = EnhancedOmit<TSchema, '_id'> & {
+    _id?: InferIdType<TSchema>;
+};
+
+/**
+ * Adds an optional _id field to an object shaped type, unless the _id field is required on that type.
+ * In the case _id is required, this method continues to require_id.
+ *
+ * @public
+ *
+ * @privateRemarks
+ * `ObjectId extends TSchema['_id']` is a confusing ordering at first glance. Rather than ask
+ * `TSchema['_id'] extends ObjectId` which translated to "Is the _id property ObjectId?"
+ * we instead ask "Does ObjectId look like (have the same shape) as the _id?"
+ */
+export declare type OptionalUnlessRequiredId<TSchema> = TSchema extends {
+    _id: any;
+} ? TSchema : OptionalId<TSchema>;
+
+/** @public */
+export declare class OrderedBulkOperation extends BulkOperationBase {
+    /* Excluded from this release type: __constructor */
+    addToOperationsList(batchType: BatchType, document: Document | UpdateStatement | DeleteStatement): this;
+}
+
+/** @public */
+export declare interface PkFactory {
+    createPk(): any;
+}
+
+/* Excluded from this release type: PoolState */
+
+/** @public */
+export declare const ProfilingLevel: Readonly<{
+    readonly off: "off";
+    readonly slowOnly: "slow_only";
+    readonly all: "all";
+}>;
+
+/** @public */
+export declare type ProfilingLevel = (typeof ProfilingLevel)[keyof typeof ProfilingLevel];
+
+/** @public */
+export declare type ProfilingLevelOptions = CommandOperationOptions;
+
+/** @public */
+export declare type PropertyType<Type, Property extends string> = string extends Property ? unknown : Property extends keyof Type ? Type[Property] : Property extends `${number}` ? Type extends ReadonlyArray<infer ArrayType> ? ArrayType : unknown : Property extends `${infer Key}.${infer Rest}` ? Key extends `${number}` ? Type extends ReadonlyArray<infer ArrayType> ? PropertyType<ArrayType, Rest> : unknown : Key extends keyof Type ? Type[Key] extends Map<string, infer MapType> ? MapType : PropertyType<Type[Key], Rest> : unknown : unknown;
+
+/** @public */
+export declare interface ProxyOptions {
+    proxyHost?: string;
+    proxyPort?: number;
+    proxyUsername?: string;
+    proxyPassword?: string;
+}
+
+/** @public */
+export declare type PullAllOperator<TSchema> = ({
+    readonly [key in KeysOfAType<TSchema, ReadonlyArray<any>>]?: TSchema[key];
+} & NotAcceptedFields<TSchema, ReadonlyArray<any>>) & {
+    readonly [key: string]: ReadonlyArray<any>;
+};
+
+/** @public */
+export declare type PullOperator<TSchema> = ({
+    readonly [key in KeysOfAType<TSchema, ReadonlyArray<any>>]?: Partial<Flatten<TSchema[key]>> | FilterOperations<Flatten<TSchema[key]>>;
+} & NotAcceptedFields<TSchema, ReadonlyArray<any>>) & {
+    readonly [key: string]: FilterOperators<any> | any;
+};
+
+/** @public */
+export declare type PushOperator<TSchema> = ({
+    readonly [key in KeysOfAType<TSchema, ReadonlyArray<any>>]?: Flatten<TSchema[key]> | ArrayOperator<Array<Flatten<TSchema[key]>>>;
+} & NotAcceptedFields<TSchema, ReadonlyArray<any>>) & {
+    readonly [key: string]: ArrayOperator<any> | any;
+};
+
+/**
+ * @public
+ * RangeOptions specifies index options for a Queryable Encryption field supporting "range" queries.
+ * min, max, sparsity, trimFactor and range must match the values set in the encryptedFields of the destination collection.
+ * For double and decimal128, min/max/precision must all be set, or all be unset.
+ */
+export declare interface RangeOptions {
+    /** min is the minimum value for the encrypted index. Required if precision is set. */
+    min?: any;
+    /** max is the minimum value for the encrypted index. Required if precision is set. */
+    max?: any;
+    /** sparsity may be used to tune performance. must be non-negative. When omitted, a default value is used. */
+    sparsity?: Long | bigint;
+    /** trimFactor may be used to tune performance. must be non-negative. When omitted, a default value is used. */
+    trimFactor?: Int32 | number;
+    precision?: number;
+}
+
+/**
+ * The MongoDB ReadConcern, which allows for control of the consistency and isolation properties
+ * of the data read from replica sets and replica set shards.
+ * @public
+ *
+ * @see https://www.mongodb.com/docs/manual/reference/read-concern/index.html
+ */
+export declare class ReadConcern {
+    level: ReadConcernLevel | string;
+    /** Constructs a ReadConcern from the read concern level.*/
+    constructor(level: ReadConcernLevel);
+    /**
+     * Construct a ReadConcern given an options object.
+     *
+     * @param options - The options object from which to extract the write concern.
+     */
+    static fromOptions(options?: {
+        readConcern?: ReadConcernLike;
+        level?: ReadConcernLevel;
+    }): ReadConcern | undefined;
+    static get MAJORITY(): 'majority';
+    static get AVAILABLE(): 'available';
+    static get LINEARIZABLE(): 'linearizable';
+    static get SNAPSHOT(): 'snapshot';
+    toJSON(): Document;
+}
+
+/** @public */
+export declare const ReadConcernLevel: Readonly<{
+    readonly local: "local";
+    readonly majority: "majority";
+    readonly linearizable: "linearizable";
+    readonly available: "available";
+    readonly snapshot: "snapshot";
+}>;
+
+/** @public */
+export declare type ReadConcernLevel = (typeof ReadConcernLevel)[keyof typeof ReadConcernLevel];
+
+/** @public */
+export declare type ReadConcernLike = ReadConcern | {
+    level: ReadConcernLevel;
+} | ReadConcernLevel;
+
+/**
+ * The **ReadPreference** class is a class that represents a MongoDB ReadPreference and is
+ * used to construct connections.
+ * @public
+ *
+ * @see https://www.mongodb.com/docs/manual/core/read-preference/
+ */
+export declare class ReadPreference {
+    mode: ReadPreferenceMode;
+    tags?: TagSet[];
+    hedge?: HedgeOptions;
+    maxStalenessSeconds?: number;
+    minWireVersion?: number;
+    static PRIMARY: "primary";
+    static PRIMARY_PREFERRED: "primaryPreferred";
+    static SECONDARY: "secondary";
+    static SECONDARY_PREFERRED: "secondaryPreferred";
+    static NEAREST: "nearest";
+    static primary: ReadPreference;
+    static primaryPreferred: ReadPreference;
+    static secondary: ReadPreference;
+    static secondaryPreferred: ReadPreference;
+    static nearest: ReadPreference;
+    /**
+     * @param mode - A string describing the read preference mode (primary|primaryPreferred|secondary|secondaryPreferred|nearest)
+     * @param tags - A tag set used to target reads to members with the specified tag(s). tagSet is not available if using read preference mode primary.
+     * @param options - Additional read preference options
+     */
+    constructor(mode: ReadPreferenceMode, tags?: TagSet[], options?: ReadPreferenceOptions);
+    get preference(): ReadPreferenceMode;
+    static fromString(mode: string): ReadPreference;
+    /**
+     * Construct a ReadPreference given an options object.
+     *
+     * @param options - The options object from which to extract the read preference.
+     */
+    static fromOptions(options?: ReadPreferenceFromOptions): ReadPreference | undefined;
+    /**
+     * Replaces options.readPreference with a ReadPreference instance
+     */
+    static translate(options: ReadPreferenceLikeOptions): ReadPreferenceLikeOptions;
+    /**
+     * Validate if a mode is legal
+     *
+     * @param mode - The string representing the read preference mode.
+     */
+    static isValid(mode: string): boolean;
+    /**
+     * Validate if a mode is legal
+     *
+     * @param mode - The string representing the read preference mode.
+     */
+    isValid(mode?: string): boolean;
+    /**
+     * Indicates that this readPreference needs the "SecondaryOk" bit when sent over the wire
+     * @see https://www.mongodb.com/docs/manual/reference/mongodb-wire-protocol/#op-query
+     */
+    secondaryOk(): boolean;
+    /**
+     * Check if the two ReadPreferences are equivalent
+     *
+     * @param readPreference - The read preference with which to check equality
+     */
+    equals(readPreference: ReadPreference): boolean;
+    /** Return JSON representation */
+    toJSON(): Document;
+}
+
+/** @public */
+export declare interface ReadPreferenceFromOptions extends ReadPreferenceLikeOptions {
+    session?: ClientSession;
+    readPreferenceTags?: TagSet[];
+    hedge?: HedgeOptions;
+}
+
+/** @public */
+export declare type ReadPreferenceLike = ReadPreference | ReadPreferenceMode;
+
+/** @public */
+export declare interface ReadPreferenceLikeOptions extends ReadPreferenceOptions {
+    readPreference?: ReadPreferenceLike | {
+        mode?: ReadPreferenceMode;
+        preference?: ReadPreferenceMode;
+        tags?: TagSet[];
+        maxStalenessSeconds?: number;
+    };
+}
+
+/** @public */
+export declare const ReadPreferenceMode: Readonly<{
+    readonly primary: "primary";
+    readonly primaryPreferred: "primaryPreferred";
+    readonly secondary: "secondary";
+    readonly secondaryPreferred: "secondaryPreferred";
+    readonly nearest: "nearest";
+}>;
+
+/** @public */
+export declare type ReadPreferenceMode = (typeof ReadPreferenceMode)[keyof typeof ReadPreferenceMode];
+
+/** @public */
+export declare interface ReadPreferenceOptions {
+    /** Max secondary read staleness in seconds, Minimum value is 90 seconds.*/
+    maxStalenessSeconds?: number;
+    /** Server mode in which the same query is dispatched in parallel to multiple replica set members. */
+    hedge?: HedgeOptions;
+}
+
+/** @public */
+export declare type RegExpOrString<T> = T extends string ? BSONRegExp | RegExp | T : T;
+
+/** @public */
+export declare type RemoveUserOptions = CommandOperationOptions;
+
+/** @public */
+export declare interface RenameOptions extends CommandOperationOptions {
+    /** Drop the target name collection if it previously exists. */
+    dropTarget?: boolean;
+    /** Unclear */
+    new_collection?: boolean;
+}
+
+/** @public */
+export declare interface ReplaceOneModel<TSchema extends Document = Document> {
+    /** The filter to limit the replaced document. */
+    filter: Filter<TSchema>;
+    /** The document with which to replace the matched document. */
+    replacement: WithoutId<TSchema>;
+    /** Specifies a collation. */
+    collation?: CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: Hint;
+    /** When true, creates a new document if no document matches the query. */
+    upsert?: boolean;
+}
+
+/** @public */
+export declare interface ReplaceOptions extends CommandOperationOptions {
+    /** If true, allows the write to opt-out of document level validation */
+    bypassDocumentValidation?: boolean;
+    /** Specifies a collation */
+    collation?: CollationOptions;
+    /** Specify that the update query should only consider plans using the hinted index */
+    hint?: string | Document;
+    /** When true, creates a new document if no document matches the query */
+    upsert?: boolean;
+    /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+    let?: Document;
+}
+
+/**
+ * @public
+ * @deprecated Please use the ChangeStreamCursorOptions type instead.
+ */
+export declare interface ResumeOptions {
+    startAtOperationTime?: Timestamp;
+    batchSize?: number;
+    maxAwaitTimeMS?: number;
+    collation?: CollationOptions;
+    readPreference?: ReadPreference;
+    resumeAfter?: ResumeToken;
+    startAfter?: ResumeToken;
+    fullDocument?: string;
+}
+
+/**
+ * Represents the logical starting point for a new ChangeStream or resuming a ChangeStream on the server.
+ * @see https://www.mongodb.com/docs/manual/changeStreams/#std-label-change-stream-resume
+ * @public
+ */
+export declare type ResumeToken = unknown;
+
+/** @public */
+export declare const ReturnDocument: Readonly<{
+    readonly BEFORE: "before";
+    readonly AFTER: "after";
+}>;
+
+/** @public */
+export declare type ReturnDocument = (typeof ReturnDocument)[keyof typeof ReturnDocument];
+
+/** @public */
+export declare interface RootFilterOperators<TSchema> extends Document {
+    $and?: Filter<TSchema>[];
+    $nor?: Filter<TSchema>[];
+    $or?: Filter<TSchema>[];
+    $text?: {
+        $search: string;
+        $language?: string;
+        $caseSensitive?: boolean;
+        $diacriticSensitive?: boolean;
+    };
+    $where?: string | ((this: TSchema) => boolean);
+    $comment?: string | Document;
+}
+
+/* Excluded from this release type: RTTPinger */
+
+/* Excluded from this release type: RTTPingerOptions */
+
+/* Excluded from this release type: RTTSampler */
+
+/** @public */
+export declare class RunCommandCursor extends AbstractCursor {
+    readonly command: Readonly<Record<string, any>>;
+    readonly getMoreOptions: {
+        comment?: any;
+        maxAwaitTimeMS?: number;
+        batchSize?: number;
+    };
+    /**
+     * Controls the `getMore.comment` field
+     * @param comment - any BSON value
+     */
+    setComment(comment: any): this;
+    /**
+     * Controls the `getMore.maxTimeMS` field. Only valid when cursor is tailable await
+     * @param maxTimeMS - the number of milliseconds to wait for new data
+     */
+    setMaxTimeMS(maxTimeMS: number): this;
+    /**
+     * Controls the `getMore.batchSize` field
+     * @param batchSize - the number documents to return in the `nextBatch`
+     */
+    setBatchSize(batchSize: number): this;
+    /** Unsupported for RunCommandCursor */
+    clone(): never;
+    /** Unsupported for RunCommandCursor: readConcern must be configured directly on command document */
+    withReadConcern(_: ReadConcernLike): never;
+    /** Unsupported for RunCommandCursor: various cursor flags must be configured directly on command document */
+    addCursorFlag(_: string, __: boolean): never;
+    /**
+     * Unsupported for RunCommandCursor: maxTimeMS must be configured directly on command document
+     */
+    maxTimeMS(_: number): never;
+    /** Unsupported for RunCommandCursor: batchSize must be configured directly on command document */
+    batchSize(_: number): never;
+    /* Excluded from this release type: db */
+    /* Excluded from this release type: __constructor */
+    /* Excluded from this release type: _initialize */
+    /* Excluded from this release type: getMore */
+}
+
+/** @public */
+export declare type RunCommandOptions = {
+    /** Specify ClientSession for this command */
+    session?: ClientSession;
+    /** The read preference */
+    readPreference?: ReadPreferenceLike;
+    /**
+     * @experimental
+     * Specifies the time an operation will run until it throws a timeout error
+     */
+    timeoutMS?: number;
+    /* Excluded from this release type: omitMaxTimeMS */
+} & BSONSerializeOptions;
+
+/** @public */
+export declare type RunCursorCommandOptions = {
+    readPreference?: ReadPreferenceLike;
+    session?: ClientSession;
+    /**
+     * @experimental
+     * Specifies the time an operation will run until it throws a timeout error. Note that if
+     * `maxTimeMS` is provided in the command in addition to setting `timeoutMS` in the options, then
+     * the original value of `maxTimeMS` will be overwritten.
+     */
+    timeoutMS?: number;
+    /**
+     * @public
+     * @experimental
+     * Specifies how `timeoutMS` is applied to the cursor. Can be either `'cursorLifeTime'` or `'iteration'`
+     * When set to `'iteration'`, the deadline specified by `timeoutMS` applies to each call of
+     * `cursor.next()`.
+     * When set to `'cursorLifetime'`, the deadline applies to the life of the entire cursor.
+     *
+     * Depending on the type of cursor being used, this option has different default values.
+     * For non-tailable cursors, this value defaults to `'cursorLifetime'`
+     * For tailable cursors, this value defaults to `'iteration'` since tailable cursors, by
+     * definition can have an arbitrarily long lifetime.
+     *
+     * @example
+     * ```ts
+     * const cursor = collection.find({}, {timeoutMS: 100, timeoutMode: 'iteration'});
+     * for await (const doc of cursor) {
+     *  // process doc
+     *  // This will throw a timeout error if any of the iterator's `next()` calls takes more than 100ms, but
+     *  // will continue to iterate successfully otherwise, regardless of the number of batches.
+     * }
+     * ```
+     *
+     * @example
+     * ```ts
+     * const cursor = collection.find({}, { timeoutMS: 1000, timeoutMode: 'cursorLifetime' });
+     * const docs = await cursor.toArray(); // This entire line will throw a timeout error if all batches are not fetched and returned within 1000ms.
+     * ```
+     */
+    timeoutMode?: CursorTimeoutMode;
+    tailable?: boolean;
+    awaitData?: boolean;
+} & BSONSerializeOptions;
+
+/** @public */
+export declare type SchemaMember<T, V> = {
+    [P in keyof T]?: V;
+} | {
+    [key: string]: V;
+};
+
+/**
+ * @public
+ */
+export declare interface SearchIndexDescription extends Document {
+    /** The name of the index. */
+    name?: string;
+    /** The index definition. */
+    definition: Document;
+    /** The type of the index.  Currently `search` or `vectorSearch` are supported. */
+    type?: string;
+}
+
+/** @public */
+export declare interface SelectServerOptions {
+    readPreference?: ReadPreferenceLike;
+    /** How long to block for server selection before throwing an error */
+    serverSelectionTimeoutMS?: number;
+    session?: ClientSession;
+    operationName: string;
+    previousServer?: ServerDescription;
+    /* Excluded from this release type: timeoutContext */
+}
+
+export { serialize }
+
+/* Excluded from this release type: Server */
+
+/* Excluded from this release type: SERVER_CLOSED */
+
+/* Excluded from this release type: SERVER_DESCRIPTION_CHANGED */
+
+/* Excluded from this release type: SERVER_HEARTBEAT_FAILED */
+
+/* Excluded from this release type: SERVER_HEARTBEAT_STARTED */
+
+/* Excluded from this release type: SERVER_HEARTBEAT_SUCCEEDED */
+
+/* Excluded from this release type: SERVER_OPENING */
+
+/* Excluded from this release type: SERVER_SELECTION_FAILED */
+
+/* Excluded from this release type: SERVER_SELECTION_STARTED */
+
+/* Excluded from this release type: SERVER_SELECTION_SUCCEEDED */
+
+/** @public */
+export declare interface ServerApi {
+    version: ServerApiVersion;
+    strict?: boolean;
+    deprecationErrors?: boolean;
+}
+
+/** @public */
+export declare const ServerApiVersion: Readonly<{
+    readonly v1: "1";
+}>;
+
+/** @public */
+export declare type ServerApiVersion = (typeof ServerApiVersion)[keyof typeof ServerApiVersion];
+
+/** @public */
+export declare class ServerCapabilities {
+    maxWireVersion: number;
+    minWireVersion: number;
+    constructor(hello: Document);
+    get hasAggregationCursor(): boolean;
+    get hasWriteCommands(): boolean;
+    get hasTextSearch(): boolean;
+    get hasAuthCommands(): boolean;
+    get hasListCollectionsCommand(): boolean;
+    get hasListIndexesCommand(): boolean;
+    get supportsSnapshotReads(): boolean;
+    get commandsTakeWriteConcern(): boolean;
+    get commandsTakeCollation(): boolean;
+}
+
+/**
+ * Emitted when server is closed.
+ * @public
+ * @category Event
+ */
+export declare class ServerClosedEvent {
+    /** A unique identifier for the topology */
+    topologyId: number;
+    /** The address (host/port pair) of the server */
+    address: string;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/* Excluded from this release type: ServerCommandOptions */
+
+/**
+ * The client's view of a single server, based on the most recent hello outcome.
+ *
+ * Internal type, not meant to be directly instantiated
+ * @public
+ */
+export declare class ServerDescription {
+    address: string;
+    type: ServerType;
+    hosts: string[];
+    passives: string[];
+    arbiters: string[];
+    tags: TagSet;
+    error: MongoError | null;
+    topologyVersion: TopologyVersion | null;
+    minWireVersion: number;
+    maxWireVersion: number;
+    roundTripTime: number;
+    /** The minimum measurement of the last 10 measurements of roundTripTime that have been collected */
+    minRoundTripTime: number;
+    lastUpdateTime: number;
+    lastWriteDate: number;
+    me: string | null;
+    primary: string | null;
+    setName: string | null;
+    setVersion: number | null;
+    electionId: ObjectId | null;
+    logicalSessionTimeoutMinutes: number | null;
+    /** The max message size in bytes for the server. */
+    maxMessageSizeBytes: number | null;
+    /** The max number of writes in a bulk write command. */
+    maxWriteBatchSize: number | null;
+    /** The max bson object size. */
+    maxBsonObjectSize: number | null;
+    /** Indicates server is a mongocryptd instance. */
+    iscryptd: boolean;
+    $clusterTime?: ClusterTime;
+    /* Excluded from this release type: __constructor */
+    get hostAddress(): HostAddress;
+    get allHosts(): string[];
+    /** Is this server available for reads*/
+    get isReadable(): boolean;
+    /** Is this server data bearing */
+    get isDataBearing(): boolean;
+    /** Is this server available for writes */
+    get isWritable(): boolean;
+    get host(): string;
+    get port(): number;
+    /**
+     * Determines if another `ServerDescription` is equal to this one per the rules defined in the SDAM specification.
+     * @see https://github.com/mongodb/specifications/blob/master/source/server-discovery-and-monitoring/server-discovery-and-monitoring.md
+     */
+    equals(other?: ServerDescription | null): boolean;
+}
+
+/**
+ * Emitted when server description changes, but does NOT include changes to the RTT.
+ * @public
+ * @category Event
+ */
+export declare class ServerDescriptionChangedEvent {
+    /** A unique identifier for the topology */
+    topologyId: number;
+    /** The address (host/port pair) of the server */
+    address: string;
+    /** The previous server description */
+    previousDescription: ServerDescription;
+    /** The new server description */
+    newDescription: ServerDescription;
+    name: "serverDescriptionChanged";
+    /* Excluded from this release type: __constructor */
+}
+
+/* Excluded from this release type: ServerDescriptionOptions */
+
+/** @public */
+export declare type ServerEvents = {
+    serverHeartbeatStarted(event: ServerHeartbeatStartedEvent): void;
+    serverHeartbeatSucceeded(event: ServerHeartbeatSucceededEvent): void;
+    serverHeartbeatFailed(event: ServerHeartbeatFailedEvent): void;
+    /* Excluded from this release type: connect */
+    descriptionReceived(description: ServerDescription): void;
+    closed(): void;
+    ended(): void;
+} & ConnectionPoolEvents & EventEmitterWithState;
+
+/**
+ * Emitted when the server monitor’s hello fails, either with an “ok: 0” or a socket exception.
+ * @public
+ * @category Event
+ */
+export declare class ServerHeartbeatFailedEvent {
+    /** The connection id for the command */
+    connectionId: string;
+    /** The execution time of the event in ms */
+    duration: number;
+    /** The command failure */
+    failure: Error;
+    /** Is true when using the streaming protocol */
+    awaited: boolean;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/**
+ * Emitted when the server monitor’s hello command is started - immediately before
+ * the hello command is serialized into raw BSON and written to the socket.
+ *
+ * @public
+ * @category Event
+ */
+export declare class ServerHeartbeatStartedEvent {
+    /** The connection id for the command */
+    connectionId: string;
+    /** Is true when using the streaming protocol */
+    awaited: boolean;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/**
+ * Emitted when the server monitor’s hello succeeds.
+ * @public
+ * @category Event
+ */
+export declare class ServerHeartbeatSucceededEvent {
+    /** The connection id for the command */
+    connectionId: string;
+    /** The execution time of the event in ms */
+    duration: number;
+    /** The command reply */
+    reply: Document;
+    /** Is true when using the streaming protocol */
+    awaited: boolean;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/** @public */
+export declare const ServerMonitoringMode: Readonly<{
+    readonly auto: "auto";
+    readonly poll: "poll";
+    readonly stream: "stream";
+}>;
+
+/** @public */
+export declare type ServerMonitoringMode = (typeof ServerMonitoringMode)[keyof typeof ServerMonitoringMode];
+
+/**
+ * Emitted when server is initialized.
+ * @public
+ * @category Event
+ */
+export declare class ServerOpeningEvent {
+    /** A unique identifier for the topology */
+    topologyId: number;
+    /** The address (host/port pair) of the server */
+    address: string;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/* Excluded from this release type: ServerOptions */
+
+/* Excluded from this release type: ServerPrivate */
+
+/* Excluded from this release type: ServerSelectionCallback */
+
+/* Excluded from this release type: ServerSelectionEvent */
+
+/* Excluded from this release type: ServerSelectionFailedEvent */
+
+/* Excluded from this release type: ServerSelectionRequest */
+
+/* Excluded from this release type: ServerSelectionStartedEvent */
+
+/* Excluded from this release type: ServerSelectionSucceededEvent */
+
+/* Excluded from this release type: ServerSelector */
+
+/**
+ * Reflects the existence of a session on the server. Can be reused by the session pool.
+ * WARNING: not meant to be instantiated directly. For internal use only.
+ * @public
+ */
+export declare class ServerSession {
+    id: ServerSessionId;
+    lastUse: number;
+    txnNumber: number;
+    isDirty: boolean;
+    /* Excluded from this release type: __constructor */
+    /**
+     * Determines if the server session has timed out.
+     *
+     * @param sessionTimeoutMinutes - The server's "logicalSessionTimeoutMinutes"
+     */
+    hasTimedOut(sessionTimeoutMinutes: number): boolean;
+}
+
+/** @public */
+export declare type ServerSessionId = {
+    id: Binary;
+};
+
+/* Excluded from this release type: ServerSessionPool */
+
+/**
+ * An enumeration of server types we know about
+ * @public
+ */
+export declare const ServerType: Readonly<{
+    readonly Standalone: "Standalone";
+    readonly Mongos: "Mongos";
+    readonly PossiblePrimary: "PossiblePrimary";
+    readonly RSPrimary: "RSPrimary";
+    readonly RSSecondary: "RSSecondary";
+    readonly RSArbiter: "RSArbiter";
+    readonly RSOther: "RSOther";
+    readonly RSGhost: "RSGhost";
+    readonly Unknown: "Unknown";
+    readonly LoadBalancer: "LoadBalancer";
+}>;
+
+/** @public */
+export declare type ServerType = (typeof ServerType)[keyof typeof ServerType];
+
+/** @public */
+export declare type SetFields<TSchema> = ({
+    readonly [key in KeysOfAType<TSchema, ReadonlyArray<any> | undefined>]?: OptionalId<Flatten<TSchema[key]>> | AddToSetOperators<Array<OptionalId<Flatten<TSchema[key]>>>>;
+} & IsAny<TSchema[keyof TSchema], object, NotAcceptedFields<TSchema, ReadonlyArray<any> | undefined>>) & {
+    readonly [key: string]: AddToSetOperators<any> | any;
+};
+
+/** @public */
+export declare type SetProfilingLevelOptions = CommandOperationOptions;
+
+/* Excluded from this release type: SeverityLevel */
+
+/** @public */
+export declare type Sort = string | Exclude<SortDirection, {
+    $meta: string;
+}> | string[] | {
+    [key: string]: SortDirection;
+} | Map<string, SortDirection> | [string, SortDirection][] | [string, SortDirection];
+
+/** @public */
+export declare type SortDirection = 1 | -1 | 'asc' | 'desc' | 'ascending' | 'descending' | {
+    $meta: string;
+};
+
+/* Excluded from this release type: SortDirectionForCmd */
+
+/* Excluded from this release type: SortForCmd */
+
+/* Excluded from this release type: SrvPoller */
+
+/* Excluded from this release type: SrvPollerEvents */
+
+/* Excluded from this release type: SrvPollerOptions */
+
+/* Excluded from this release type: SrvPollingEvent */
+
+/* Excluded from this release type: StateMachineExecutable */
+
+/** @public */
+export declare type Stream = Socket | TLSSocket;
+
+/** @public */
+export declare class StreamDescription {
+    address: string;
+    type: ServerType;
+    minWireVersion?: number;
+    maxWireVersion?: number;
+    maxBsonObjectSize: number;
+    maxMessageSizeBytes: number;
+    maxWriteBatchSize: number;
+    compressors: CompressorName[];
+    compressor?: CompressorName;
+    logicalSessionTimeoutMinutes?: number;
+    loadBalanced: boolean;
+    __nodejs_mock_server__?: boolean;
+    zlibCompressionLevel?: number;
+    serverConnectionId: bigint | null;
+    hello: Document | null;
+    constructor(address: string, options?: StreamDescriptionOptions);
+    receiveResponse(response: Document | null): void;
+    parseServerConnectionID(serverConnectionId: number | Double | bigint | Long): bigint;
+}
+
+/** @public */
+export declare interface StreamDescriptionOptions {
+    compressors?: CompressorName[];
+    logicalSessionTimeoutMinutes?: number;
+    loadBalanced: boolean;
+}
+
+/**
+ * @public
+ * @experimental
+ */
+export declare type StrictFilter<TSchema> = Partial<TSchema> | ({
+    [Property in Join<NestedPaths<WithId<TSchema>, []>, '.'>]?: Condition<PropertyType<WithId<TSchema>, Property>>;
+} & RootFilterOperators<WithId<TSchema>>);
+
+/**
+ * @public
+ * @experimental
+ */
+export declare type StrictMatchKeysAndValues<TSchema> = Readonly<{
+    [Property in Join<NestedPaths<TSchema, []>, '.'>]?: PropertyType<TSchema, Property>;
+} & {
+    [Property in `${NestedPathsOfType<TSchema, any[]>}.$${`[${string}]` | ''}`]?: ArrayElement<PropertyType<TSchema, Property extends `${infer Key}.$${string}` ? Key : never>>;
+} & {
+    [Property in `${NestedPathsOfType<TSchema, Record<string, any>[]>}.$${`[${string}]` | ''}.${string}`]?: any;
+} & Document>;
+
+/**
+ * @public
+ * @experimental
+ */
+export declare type StrictUpdateFilter<TSchema> = {
+    $currentDate?: OnlyFieldsOfType<TSchema, Date | Timestamp, true | {
+        $type: 'date' | 'timestamp';
+    }>;
+    $inc?: OnlyFieldsOfType<TSchema, NumericType | undefined>;
+    $min?: StrictMatchKeysAndValues<TSchema>;
+    $max?: StrictMatchKeysAndValues<TSchema>;
+    $mul?: OnlyFieldsOfType<TSchema, NumericType | undefined>;
+    $rename?: Record<string, string>;
+    $set?: StrictMatchKeysAndValues<TSchema>;
+    $setOnInsert?: StrictMatchKeysAndValues<TSchema>;
+    $unset?: OnlyFieldsOfType<TSchema, any, '' | true | 1>;
+    $addToSet?: SetFields<TSchema>;
+    $pop?: OnlyFieldsOfType<TSchema, ReadonlyArray<any>, 1 | -1>;
+    $pull?: PullOperator<TSchema>;
+    $push?: PushOperator<TSchema>;
+    $pullAll?: PullAllOperator<TSchema>;
+    $bit?: OnlyFieldsOfType<TSchema, NumericType | undefined, {
+        and: IntegerType;
+    } | {
+        or: IntegerType;
+    } | {
+        xor: IntegerType;
+    }>;
+} & Document;
+
+/** @public */
+export declare type SupportedNodeConnectionOptions = SupportedTLSConnectionOptions & SupportedTLSSocketOptions & SupportedSocketOptions;
+
+/** @public */
+export declare type SupportedSocketOptions = Pick<TcpNetConnectOpts & {
+    autoSelectFamily?: boolean;
+    autoSelectFamilyAttemptTimeout?: number;
+}, (typeof LEGAL_TCP_SOCKET_OPTIONS)[number]>;
+
+/** @public */
+export declare type SupportedTLSConnectionOptions = Pick<ConnectionOptions_2 & {
+    allowPartialTrustChain?: boolean;
+}, (typeof LEGAL_TLS_SOCKET_OPTIONS)[number]>;
+
+/** @public */
+export declare type SupportedTLSSocketOptions = Pick<TLSSocketOptions, Extract<keyof TLSSocketOptions, (typeof LEGAL_TLS_SOCKET_OPTIONS)[number]>>;
+
+/** @public */
+export declare type TagSet = {
+    [key: string]: string;
+};
+
+/* Excluded from this release type: Timeout */
+
+/* Excluded from this release type: TimeoutContext */
+
+/* Excluded from this release type: TimeoutContextOptions */
+
+/** @public
+ * Configuration options for timeseries collections
+ * @see https://www.mongodb.com/docs/manual/core/timeseries-collections/
+ */
+export declare interface TimeSeriesCollectionOptions extends Document {
+    timeField: string;
+    metaField?: string;
+    granularity?: 'seconds' | 'minutes' | 'hours' | string;
+    bucketMaxSpanSeconds?: number;
+    bucketRoundingSeconds?: number;
+}
+
+export { Timestamp }
+
+/* Excluded from this release type: TokenCache */
+
+/* Excluded from this release type: Topology */
+
+/* Excluded from this release type: TOPOLOGY_CLOSED */
+
+/* Excluded from this release type: TOPOLOGY_DESCRIPTION_CHANGED */
+
+/* Excluded from this release type: TOPOLOGY_OPENING */
+
+/**
+ * Emitted when topology is closed.
+ * @public
+ * @category Event
+ */
+export declare class TopologyClosedEvent {
+    /** A unique identifier for the topology */
+    topologyId: number;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/**
+ * Representation of a deployment of servers
+ * @public
+ */
+export declare class TopologyDescription {
+    type: TopologyType;
+    setName: string | null;
+    maxSetVersion: number | null;
+    maxElectionId: ObjectId | null;
+    servers: Map<string, ServerDescription>;
+    stale: boolean;
+    compatible: boolean;
+    compatibilityError?: string;
+    logicalSessionTimeoutMinutes: number | null;
+    heartbeatFrequencyMS: number;
+    localThresholdMS: number;
+    commonWireVersion: number;
+    /**
+     * Create a TopologyDescription
+     */
+    constructor(topologyType: TopologyType, serverDescriptions?: Map<string, ServerDescription> | null, setName?: string | null, maxSetVersion?: number | null, maxElectionId?: ObjectId | null, commonWireVersion?: number | null, options?: TopologyDescriptionOptions | null);
+    /* Excluded from this release type: updateFromSrvPollingEvent */
+    /* Excluded from this release type: update */
+    get error(): MongoError | null;
+    /**
+     * Determines if the topology description has any known servers
+     */
+    get hasKnownServers(): boolean;
+    /**
+     * Determines if this topology description has a data-bearing server available.
+     */
+    get hasDataBearingServers(): boolean;
+    /* Excluded from this release type: hasServer */
+    /**
+     * Returns a JSON-serializable representation of the TopologyDescription.  This is primarily
+     * intended for use with JSON.stringify().
+     *
+     * This method will not throw.
+     */
+    toJSON(): Document;
+}
+
+/**
+ * Emitted when topology description changes.
+ * @public
+ * @category Event
+ */
+export declare class TopologyDescriptionChangedEvent {
+    /** A unique identifier for the topology */
+    topologyId: number;
+    /** The old topology description */
+    previousDescription: TopologyDescription;
+    /** The new topology description */
+    newDescription: TopologyDescription;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/** @public */
+export declare interface TopologyDescriptionOptions {
+    heartbeatFrequencyMS?: number;
+    localThresholdMS?: number;
+}
+
+/** @public */
+export declare type TopologyEvents = {
+    /* Excluded from this release type: connect */
+    serverOpening(event: ServerOpeningEvent): void;
+    serverClosed(event: ServerClosedEvent): void;
+    serverDescriptionChanged(event: ServerDescriptionChangedEvent): void;
+    topologyClosed(event: TopologyClosedEvent): void;
+    topologyOpening(event: TopologyOpeningEvent): void;
+    topologyDescriptionChanged(event: TopologyDescriptionChangedEvent): void;
+    error(error: Error): void;
+    /* Excluded from this release type: open */
+    close(): void;
+    timeout(): void;
+} & Omit<ServerEvents, 'connect'> & ConnectionPoolEvents & ConnectionEvents & EventEmitterWithState;
+
+/**
+ * Emitted when topology is initialized.
+ * @public
+ * @category Event
+ */
+export declare class TopologyOpeningEvent {
+    /** A unique identifier for the topology */
+    topologyId: number;
+    /* Excluded from this release type: name */
+    /* Excluded from this release type: __constructor */
+}
+
+/* Excluded from this release type: TopologyOptions */
+
+/* Excluded from this release type: TopologyPrivate */
+
+/**
+ * An enumeration of topology types we know about
+ * @public
+ */
+export declare const TopologyType: Readonly<{
+    readonly Single: "Single";
+    readonly ReplicaSetNoPrimary: "ReplicaSetNoPrimary";
+    readonly ReplicaSetWithPrimary: "ReplicaSetWithPrimary";
+    readonly Sharded: "Sharded";
+    readonly Unknown: "Unknown";
+    readonly LoadBalanced: "LoadBalanced";
+}>;
+
+/** @public */
+export declare type TopologyType = (typeof TopologyType)[keyof typeof TopologyType];
+
+/** @public */
+export declare interface TopologyVersion {
+    processId: ObjectId;
+    counter: Long;
+}
+
+/**
+ * @public
+ * A class maintaining state related to a server transaction. Internal Only
+ */
+export declare class Transaction {
+    /* Excluded from this release type: state */
+    options: TransactionOptions;
+    /* Excluded from this release type: _pinnedServer */
+    /* Excluded from this release type: _recoveryToken */
+    /* Excluded from this release type: __constructor */
+    /* Excluded from this release type: server */
+    get recoveryToken(): Document | undefined;
+    get isPinned(): boolean;
+    /** @returns Whether the transaction has started */
+    get isStarting(): boolean;
+    /**
+     * @returns Whether this session is presently in a transaction
+     */
+    get isActive(): boolean;
+    get isCommitted(): boolean;
+    /* Excluded from this release type: transition */
+    /* Excluded from this release type: pinServer */
+    /* Excluded from this release type: unpinServer */
+}
+
+/**
+ * Configuration options for a transaction.
+ * @public
+ */
+export declare interface TransactionOptions extends Omit<CommandOperationOptions, 'timeoutMS'> {
+    /** A default read concern for commands in this transaction */
+    readConcern?: ReadConcernLike;
+    /** A default writeConcern for commands in this transaction */
+    writeConcern?: WriteConcern;
+    /** A default read preference for commands in this transaction */
+    readPreference?: ReadPreferenceLike;
+    /** Specifies the maximum amount of time to allow a commit action on a transaction to run in milliseconds */
+    maxCommitTimeMS?: number;
+}
+
+/* Excluded from this release type: TxnState */
+
+/**
+ * Typescript type safe event emitter
+ * @public
+ */
+export declare interface TypedEventEmitter<Events extends EventsDescription> extends EventEmitter {
+    addListener<EventKey extends keyof Events>(event: EventKey, listener: Events[EventKey]): this;
+    addListener(event: CommonEvents, listener: (eventName: string | symbol, listener: GenericListener) => void): this;
+    addListener(event: string | symbol, listener: GenericListener): this;
+    on<EventKey extends keyof Events>(event: EventKey, listener: Events[EventKey]): this;
+    on(event: CommonEvents, listener: (eventName: string | symbol, listener: GenericListener) => void): this;
+    on(event: string | symbol, listener: GenericListener): this;
+    once<EventKey extends keyof Events>(event: EventKey, listener: Events[EventKey]): this;
+    once(event: CommonEvents, listener: (eventName: string | symbol, listener: GenericListener) => void): this;
+    once(event: string | symbol, listener: GenericListener): this;
+    removeListener<EventKey extends keyof Events>(event: EventKey, listener: Events[EventKey]): this;
+    removeListener(event: CommonEvents, listener: (eventName: string | symbol, listener: GenericListener) => void): this;
+    removeListener(event: string | symbol, listener: GenericListener): this;
+    off<EventKey extends keyof Events>(event: EventKey, listener: Events[EventKey]): this;
+    off(event: CommonEvents, listener: (eventName: string | symbol, listener: GenericListener) => void): this;
+    off(event: string | symbol, listener: GenericListener): this;
+    removeAllListeners<EventKey extends keyof Events>(event?: EventKey | CommonEvents | symbol | string): this;
+    listeners<EventKey extends keyof Events>(event: EventKey | CommonEvents | symbol | string): Events[EventKey][];
+    rawListeners<EventKey extends keyof Events>(event: EventKey | CommonEvents | symbol | string): Events[EventKey][];
+    emit<EventKey extends keyof Events>(event: EventKey | symbol, ...args: Parameters<Events[EventKey]>): boolean;
+    listenerCount<EventKey extends keyof Events>(type: EventKey | CommonEvents | symbol | string): number;
+    prependListener<EventKey extends keyof Events>(event: EventKey, listener: Events[EventKey]): this;
+    prependListener(event: CommonEvents, listener: (eventName: string | symbol, listener: GenericListener) => void): this;
+    prependListener(event: string | symbol, listener: GenericListener): this;
+    prependOnceListener<EventKey extends keyof Events>(event: EventKey, listener: Events[EventKey]): this;
+    prependOnceListener(event: CommonEvents, listener: (eventName: string | symbol, listener: GenericListener) => void): this;
+    prependOnceListener(event: string | symbol, listener: GenericListener): this;
+    eventNames(): string[];
+    getMaxListeners(): number;
+    setMaxListeners(n: number): this;
+}
+
+/**
+ * Typescript type safe event emitter
+ * @public
+ */
+export declare class TypedEventEmitter<Events extends EventsDescription> extends EventEmitter {
+    /* Excluded from this release type: mongoLogger */
+    /* Excluded from this release type: component */
+    /* Excluded from this release type: emitAndLog */
+    /* Excluded from this release type: emitAndLogHeartbeat */
+    /* Excluded from this release type: emitAndLogCommand */
+}
+
+/** @public */
+export declare class UnorderedBulkOperation extends BulkOperationBase {
+    /* Excluded from this release type: __constructor */
+    handleWriteError(writeResult: BulkWriteResult): void;
+    addToOperationsList(batchType: BatchType, document: Document | UpdateStatement | DeleteStatement): this;
+}
+
+/** @public */
+export declare interface UpdateDescription<TSchema extends Document = Document> {
+    /**
+     * A document containing key:value pairs of names of the fields that were
+     * changed, and the new value for those fields.
+     */
+    updatedFields?: Partial<TSchema>;
+    /**
+     * An array of field names that were removed from the document.
+     */
+    removedFields?: string[];
+    /**
+     * An array of documents which record array truncations performed with pipeline-based updates using one or more of the following stages:
+     * - $addFields
+     * - $set
+     * - $replaceRoot
+     * - $replaceWith
+     */
+    truncatedArrays?: Array<{
+        /** The name of the truncated field. */
+        field: string;
+        /** The number of elements in the truncated array. */
+        newSize: number;
+    }>;
+    /**
+     * A document containing additional information about any ambiguous update paths from the update event.  The document
+     * maps the full ambiguous update path to an array containing the actual resolved components of the path.  For example,
+     * given a document shaped like `{ a: { '0': 0 } }`, and an update of `{ $inc: 'a.0' }`, disambiguated paths would look like
+     * the following:
+     *
+     * ```
+     *   {
+     *     'a.0': ['a', '0']
+     *   }
+     * ```
+     *
+     * This field is only present when there are ambiguous paths that are updated as a part of the update event and `showExpandedEvents`
+     * is enabled for the change stream.
+     * @sinceServerVersion 6.1.0
+     */
+    disambiguatedPaths?: Document;
+}
+
+/** @public */
+export declare type UpdateFilter<TSchema> = {
+    $currentDate?: OnlyFieldsOfType<TSchema, Date | Timestamp, true | {
+        $type: 'date' | 'timestamp';
+    }>;
+    $inc?: OnlyFieldsOfType<TSchema, NumericType | undefined>;
+    $min?: MatchKeysAndValues<TSchema>;
+    $max?: MatchKeysAndValues<TSchema>;
+    $mul?: OnlyFieldsOfType<TSchema, NumericType | undefined>;
+    $rename?: Record<string, string>;
+    $set?: MatchKeysAndValues<TSchema>;
+    $setOnInsert?: MatchKeysAndValues<TSchema>;
+    $unset?: OnlyFieldsOfType<TSchema, any, '' | true | 1>;
+    $addToSet?: SetFields<TSchema>;
+    $pop?: OnlyFieldsOfType<TSchema, ReadonlyArray<any>, 1 | -1>;
+    $pull?: PullOperator<TSchema>;
+    $push?: PushOperator<TSchema>;
+    $pullAll?: PullAllOperator<TSchema>;
+    $bit?: OnlyFieldsOfType<TSchema, NumericType | undefined, {
+        and: IntegerType;
+    } | {
+        or: IntegerType;
+    } | {
+        xor: IntegerType;
+    }>;
+} & Document;
+
+/** @public */
+export declare interface UpdateManyModel<TSchema extends Document = Document> {
+    /** The filter to limit the updated documents. */
+    filter: Filter<TSchema>;
+    /**
+     * The modifications to apply. The value can be either:
+     * UpdateFilter<TSchema> - A document that contains update operator expressions,
+     * Document[] - an aggregation pipeline.
+     */
+    update: UpdateFilter<TSchema> | Document[];
+    /** A set of filters specifying to which array elements an update should apply. */
+    arrayFilters?: Document[];
+    /** Specifies a collation. */
+    collation?: CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: Hint;
+    /** When true, creates a new document if no document matches the query. */
+    upsert?: boolean;
+}
+
+/** @public */
+export declare interface UpdateOneModel<TSchema extends Document = Document> {
+    /** The filter to limit the updated documents. */
+    filter: Filter<TSchema>;
+    /**
+     * The modifications to apply. The value can be either:
+     * UpdateFilter<TSchema> - A document that contains update operator expressions,
+     * Document[] - an aggregation pipeline.
+     */
+    update: UpdateFilter<TSchema> | Document[];
+    /** A set of filters specifying to which array elements an update should apply. */
+    arrayFilters?: Document[];
+    /** Specifies a collation. */
+    collation?: CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: Hint;
+    /** When true, creates a new document if no document matches the query. */
+    upsert?: boolean;
+}
+
+/** @public */
+export declare interface UpdateOptions extends CommandOperationOptions {
+    /** A set of filters specifying to which array elements an update should apply */
+    arrayFilters?: Document[];
+    /** If true, allows the write to opt-out of document level validation */
+    bypassDocumentValidation?: boolean;
+    /** Specifies a collation */
+    collation?: CollationOptions;
+    /** Specify that the update query should only consider plans using the hinted index */
+    hint?: Hint;
+    /** When true, creates a new document if no document matches the query */
+    upsert?: boolean;
+    /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+    let?: Document;
+}
+
+/**
+ * @public
+ * `TSchema` is the schema of the collection
+ */
+export declare interface UpdateResult<TSchema extends Document = Document> {
+    /** Indicates whether this write result was acknowledged. If not, then all other members of this result will be undefined */
+    acknowledged: boolean;
+    /** The number of documents that matched the filter */
+    matchedCount: number;
+    /** The number of documents that were modified */
+    modifiedCount: number;
+    /** The number of documents that were upserted */
+    upsertedCount: number;
+    /** The identifier of the inserted document if an upsert took place */
+    upsertedId: InferIdType<TSchema> | null;
+}
+
+/** @public */
+export declare interface UpdateStatement {
+    /** The query that matches documents to update. */
+    q: Document;
+    /** The modifications to apply. */
+    u: Document | Document[];
+    /**  If true, perform an insert if no documents match the query. */
+    upsert?: boolean;
+    /** If true, updates all documents that meet the query criteria. */
+    multi?: boolean;
+    /** Specifies the collation to use for the operation. */
+    collation?: CollationOptions;
+    /** An array of filter documents that determines which array elements to modify for an update operation on an array field. */
+    arrayFilters?: Document[];
+    /** A document or string that specifies the index to use to support the query predicate. */
+    hint?: Hint;
+}
+
+export { UUID }
+
+/** @public */
+export declare interface ValidateCollectionOptions extends CommandOperationOptions {
+    /** Validates a collection in the background, without interrupting read or write traffic (only in MongoDB 4.4+) */
+    background?: boolean;
+}
+
+/** @public */
+export declare type W = number | 'majority';
+
+/* Excluded from this release type: WAITING_FOR_SUITABLE_SERVER */
+
+/* Excluded from this release type: WaitingForSuitableServerEvent */
+
+/* Excluded from this release type: WaitQueueMember */
+
+/* Excluded from this release type: WithConnectionCallback */
+
+/** Add an _id field to an object shaped type @public */
+export declare type WithId<TSchema> = EnhancedOmit<TSchema, '_id'> & {
+    _id: InferIdType<TSchema>;
+};
+
+/** Remove the _id field from an object shaped type @public */
+export declare type WithoutId<TSchema> = Omit<TSchema, '_id'>;
+
+/** @public */
+export declare type WithSessionCallback<T = unknown> = (session: ClientSession) => Promise<T>;
+
+/** @public */
+export declare type WithTransactionCallback<T = any> = (session: ClientSession) => Promise<T>;
+
+/* Excluded from this release type: Workflow */
+
+/**
+ * A MongoDB WriteConcern, which describes the level of acknowledgement
+ * requested from MongoDB for write operations.
+ * @public
+ *
+ * @see https://www.mongodb.com/docs/manual/reference/write-concern/
+ */
+export declare class WriteConcern {
+    /**
+     * Request acknowledgment that the write operation has propagated to a specified number of mongod instances or to mongod instances with specified tags.
+     * If w is 0 and is set on a write operation, the server will not send a response.
+     */
+    readonly w?: W;
+    /** Request acknowledgment that the write operation has been written to the on-disk journal */
+    readonly journal?: boolean;
+    /**
+     * Specify a time limit to prevent write operations from blocking indefinitely.
+     */
+    readonly wtimeoutMS?: number;
+    /**
+     * Specify a time limit to prevent write operations from blocking indefinitely.
+     * @deprecated Will be removed in the next major version. Please use wtimeoutMS.
+     */
+    wtimeout?: number;
+    /**
+     * Request acknowledgment that the write operation has been written to the on-disk journal.
+     * @deprecated Will be removed in the next major version. Please use journal.
+     */
+    j?: boolean;
+    /**
+     * Equivalent to the j option.
+     * @deprecated Will be removed in the next major version. Please use journal.
+     */
+    fsync?: boolean | 1;
+    /**
+     * Constructs a WriteConcern from the write concern properties.
+     * @param w - request acknowledgment that the write operation has propagated to a specified number of mongod instances or to mongod instances with specified tags.
+     * @param wtimeoutMS - specify a time limit to prevent write operations from blocking indefinitely
+     * @param journal - request acknowledgment that the write operation has been written to the on-disk journal
+     * @param fsync - equivalent to the j option. Is deprecated and will be removed in the next major version.
+     */
+    constructor(w?: W, wtimeoutMS?: number, journal?: boolean, fsync?: boolean | 1);
+    /**
+     * Apply a write concern to a command document. Will modify and return the command.
+     */
+    static apply(command: Document, writeConcern: WriteConcern): Document;
+    /** Construct a WriteConcern given an options object. */
+    static fromOptions(options?: WriteConcernOptions | WriteConcern | W, inherit?: WriteConcernOptions | WriteConcern): WriteConcern | undefined;
+}
+
+/**
+ * An error representing a failure by the server to apply the requested write concern to the bulk operation.
+ * @public
+ * @category Error
+ */
+export declare class WriteConcernError {
+    /* Excluded from this release type: [kServerError] */
+    constructor(error: WriteConcernErrorData);
+    /** Write concern error code. */
+    get code(): number | undefined;
+    /** Write concern error message. */
+    get errmsg(): string | undefined;
+    /** Write concern error info. */
+    get errInfo(): Document | undefined;
+    toJSON(): WriteConcernErrorData;
+    toString(): string;
+}
+
+/** @public */
+export declare interface WriteConcernErrorData {
+    code: number;
+    errmsg: string;
+    errInfo?: Document;
+}
+
+/**
+ * The type of the result property of MongoWriteConcernError
+ * @public
+ */
+export declare interface WriteConcernErrorResult {
+    writeConcernError: {
+        code: number;
+        errmsg: string;
+        codeName?: string;
+        errInfo?: Document;
+    };
+    ok: number;
+    code?: number;
+    errorLabels?: string[];
+    [x: string | number]: unknown;
+}
+
+/** @public */
+export declare interface WriteConcernOptions {
+    /** Write Concern as an object */
+    writeConcern?: WriteConcern | WriteConcernSettings;
+}
+
+/** @public */
+export declare interface WriteConcernSettings {
+    /** The write concern */
+    w?: W;
+    /**
+     * The write concern timeout.
+     */
+    wtimeoutMS?: number;
+    /** The journal write concern */
+    journal?: boolean;
+    /**
+     * The journal write concern.
+     * @deprecated Will be removed in the next major version. Please use the journal option.
+     */
+    j?: boolean;
+    /**
+     * The write concern timeout.
+     */
+    wtimeout?: number;
+    /**
+     * The file sync write concern.
+     * @deprecated Will be removed in the next major version. Please use the journal option.
+     */
+    fsync?: boolean | 1;
+}
+
+/**
+ * An error that occurred during a BulkWrite on the server.
+ * @public
+ * @category Error
+ */
+export declare class WriteError {
+    err: BulkWriteOperationError;
+    constructor(err: BulkWriteOperationError);
+    /** WriteError code. */
+    get code(): number;
+    /** WriteError original bulk operation index. */
+    get index(): number;
+    /** WriteError message. */
+    get errmsg(): string | undefined;
+    /** WriteError details. */
+    get errInfo(): Document | undefined;
+    /** Returns the underlying operation that caused the error */
+    getOperation(): Document;
+    toJSON(): {
+        code: number;
+        index: number;
+        errmsg?: string;
+        op: Document;
+    };
+    toString(): string;
+}
+
+/* Excluded from this release type: WriteProtocolMessageType */
+
+export { }
diff --git a/backend/node_modules/mongodb/package.json b/backend/node_modules/mongodb/package.json
new file mode 100644
index 0000000..ca2b0ed
--- /dev/null
+++ b/backend/node_modules/mongodb/package.json
@@ -0,0 +1,179 @@
+{
+  "name": "mongodb",
+  "version": "6.12.0",
+  "description": "The official MongoDB driver for Node.js",
+  "main": "lib/index.js",
+  "files": [
+    "lib",
+    "src",
+    "etc/prepare.js",
+    "mongodb.d.ts",
+    "tsconfig.json"
+  ],
+  "types": "mongodb.d.ts",
+  "repository": {
+    "type": "git",
+    "url": "git@github.com:mongodb/node-mongodb-native.git"
+  },
+  "keywords": [
+    "mongodb",
+    "driver",
+    "official"
+  ],
+  "author": {
+    "name": "The MongoDB NodeJS Team",
+    "email": "dbx-node@mongodb.com"
+  },
+  "dependencies": {
+    "@mongodb-js/saslprep": "^1.1.9",
+    "bson": "^6.10.1",
+    "mongodb-connection-string-url": "^3.0.0"
+  },
+  "peerDependencies": {
+    "@aws-sdk/credential-providers": "^3.188.0",
+    "@mongodb-js/zstd": "^1.1.0 || ^2.0.0",
+    "gcp-metadata": "^5.2.0",
+    "kerberos": "^2.0.1",
+    "mongodb-client-encryption": ">=6.0.0 <7",
+    "snappy": "^7.2.2",
+    "socks": "^2.7.1"
+  },
+  "peerDependenciesMeta": {
+    "@aws-sdk/credential-providers": {
+      "optional": true
+    },
+    "@mongodb-js/zstd": {
+      "optional": true
+    },
+    "kerberos": {
+      "optional": true
+    },
+    "snappy": {
+      "optional": true
+    },
+    "mongodb-client-encryption": {
+      "optional": true
+    },
+    "gcp-metadata": {
+      "optional": true
+    },
+    "socks": {
+      "optional": true
+    }
+  },
+  "devDependencies": {
+    "@aws-sdk/credential-providers": "^3.686.0",
+    "@iarna/toml": "^2.2.5",
+    "@istanbuljs/nyc-config-typescript": "^1.0.2",
+    "@microsoft/api-extractor": "^7.47.11",
+    "@microsoft/tsdoc-config": "^0.17.0",
+    "@mongodb-js/zstd": "^2.0.0",
+    "@types/chai": "^4.3.17",
+    "@types/chai-subset": "^1.3.5",
+    "@types/express": "^4.17.21",
+    "@types/kerberos": "^1.1.5",
+    "@types/mocha": "^10.0.9",
+    "@types/node": "^22.9.0",
+    "@types/saslprep": "^1.0.3",
+    "@types/semver": "^7.5.8",
+    "@types/sinon": "^17.0.3",
+    "@types/sinon-chai": "^3.2.12",
+    "@types/whatwg-url": "^11.0.5",
+    "@typescript-eslint/eslint-plugin": "8.4.0",
+    "@typescript-eslint/parser": "8.4.0",
+    "chai": "^4.4.1",
+    "chai-subset": "^1.6.0",
+    "chalk": "^4.1.2",
+    "eslint": "9.9.0",
+    "eslint-config-prettier": "^9.1.0",
+    "eslint-plugin-mocha": "^10.4.1",
+    "eslint-plugin-prettier": "^5.2.1",
+    "eslint-plugin-simple-import-sort": "^12.1.1",
+    "eslint-plugin-tsdoc": "^0.3.0",
+    "eslint-plugin-unused-imports": "^4.1.4",
+    "express": "^4.21.1",
+    "gcp-metadata": "^5.3.0",
+    "js-yaml": "^4.1.0",
+    "mocha": "^10.8.2",
+    "mocha-sinon": "^2.1.2",
+    "mongodb-client-encryption": "^6.1.0",
+    "mongodb-legacy": "^6.1.3",
+    "nyc": "^15.1.0",
+    "prettier": "^3.3.3",
+    "semver": "^7.6.3",
+    "sinon": "^18.0.0",
+    "sinon-chai": "^3.7.0",
+    "snappy": "^7.2.2",
+    "socks": "^2.8.1",
+    "source-map-support": "^0.5.21",
+    "ts-node": "^10.9.2",
+    "tsd": "^0.31.2",
+    "typescript": "5.5",
+    "typescript-cached-transpile": "^0.0.6",
+    "v8-heapsnapshot": "^1.3.1",
+    "yargs": "^17.7.2"
+  },
+  "license": "Apache-2.0",
+  "engines": {
+    "node": ">=16.20.1"
+  },
+  "bugs": {
+    "url": "https://jira.mongodb.org/projects/NODE/issues/"
+  },
+  "homepage": "https://github.com/mongodb/node-mongodb-native",
+  "scripts": {
+    "build:evergreen": "node .evergreen/generate_evergreen_tasks.js",
+    "build:ts": "node ./node_modules/typescript/bin/tsc",
+    "build:dts": "npm run build:ts && api-extractor run && node etc/clean_definition_files.cjs && ESLINT_USE_FLAT_CONFIG=false eslint --no-ignore --fix mongodb.d.ts lib/beta.d.ts",
+    "build:docs": "./etc/docs/build.ts",
+    "build:typedoc": "typedoc",
+    "build:nightly": "node ./.github/scripts/nightly.mjs",
+    "check:bench": "node test/benchmarks/driverBench",
+    "check:coverage": "nyc npm run test:all",
+    "check:integration-coverage": "nyc npm run check:test",
+    "check:lambda": "mocha --config test/mocha_lambda.json test/integration/node-specific/examples/handler.test.js",
+    "check:lambda:aws": "mocha --config test/mocha_lambda.json test/integration/node-specific/examples/aws_handler.test.js",
+    "check:lint": "npm run build:dts && npm run check:dts && npm run check:eslint && npm run check:tsd",
+    "check:eslint": "npm run build:dts && ESLINT_USE_FLAT_CONFIG=false eslint -v && ESLINT_USE_FLAT_CONFIG=false eslint --max-warnings=0 --ext '.js,.ts' src test",
+    "check:tsd": "tsd --version && tsd",
+    "check:dependencies": "mocha test/action/dependency.test.ts",
+    "check:dts": "node ./node_modules/typescript/bin/tsc --noEmit mongodb.d.ts && tsd",
+    "check:search-indexes": "nyc mocha --config test/mocha_mongodb.json test/manual/search-index-management.prose.test.ts",
+    "check:test": "mocha --config test/mocha_mongodb.json test/integration",
+    "check:unit": "mocha test/unit",
+    "check:ts": "node ./node_modules/typescript/bin/tsc -v && node ./node_modules/typescript/bin/tsc --noEmit",
+    "check:atlas": "mocha --config test/manual/mocharc.json test/manual/atlas_connectivity.test.ts",
+    "check:resource-management": "mocha --config test/manual/mocharc.json test/manual/resource_management.test.ts",
+    "check:drivers-atlas-testing": "mocha --config test/mocha_mongodb.json test/atlas/drivers_atlas_testing.test.ts",
+    "check:adl": "mocha --config test/mocha_mongodb.json test/manual/atlas-data-lake-testing",
+    "check:aws": "nyc mocha --config test/mocha_mongodb.json test/integration/auth/mongodb_aws.test.ts",
+    "check:oidc-auth": "mocha --config test/mocha_mongodb.json test/integration/auth/auth.spec.test.ts",
+    "check:oidc-test": "mocha --config test/mocha_mongodb.json test/integration/auth/mongodb_oidc.prose.test.ts",
+    "check:oidc-azure": "mocha --config test/mocha_mongodb.json test/integration/auth/mongodb_oidc_azure.prose.05.test.ts",
+    "check:oidc-gcp": "mocha --config test/mocha_mongodb.json test/integration/auth/mongodb_oidc_gcp.prose.06.test.ts",
+    "check:oidc-k8s": "mocha --config test/mocha_mongodb.json test/integration/auth/mongodb_oidc_k8s.prose.07.test.ts",
+    "check:ocsp": "mocha --config test/manual/mocharc.json test/manual/ocsp_support.test.js",
+    "check:kerberos": "nyc mocha --config test/manual/mocharc.json test/manual/kerberos.test.ts",
+    "check:tls": "mocha --config test/manual/mocharc.json test/manual/tls_support.test.ts",
+    "check:ldap": "nyc mocha --config test/manual/mocharc.json test/manual/ldap.test.js",
+    "check:socks5": "mocha --config test/manual/mocharc.json test/manual/socks5.test.ts",
+    "check:csfle": "mocha --config test/mocha_mongodb.json test/integration/client-side-encryption",
+    "check:snappy": "mocha test/unit/assorted/snappy.test.js",
+    "check:x509": "mocha test/manual/x509_auth.test.ts",
+    "fix:eslint": "npm run check:eslint -- --fix",
+    "prepare": "node etc/prepare.js",
+    "preview:docs": "ts-node etc/docs/preview.ts",
+    "test": "npm run check:lint && npm run test:all",
+    "test:all": "npm run check:unit && npm run check:test",
+    "update:docs": "npm run build:docs -- --yes"
+  },
+  "tsd": {
+    "directory": "test/types",
+    "compilerOptions": {
+      "strict": true,
+      "target": "esnext",
+      "module": "commonjs",
+      "moduleResolution": "node"
+    }
+  }
+}
diff --git a/backend/node_modules/mongodb/src/admin.ts b/backend/node_modules/mongodb/src/admin.ts
new file mode 100644
index 0000000..0f03023
--- /dev/null
+++ b/backend/node_modules/mongodb/src/admin.ts
@@ -0,0 +1,172 @@
+import { type Document, resolveBSONOptions } from './bson';
+import type { Db } from './db';
+import type { CommandOperationOptions } from './operations/command';
+import { executeOperation } from './operations/execute_operation';
+import {
+  ListDatabasesOperation,
+  type ListDatabasesOptions,
+  type ListDatabasesResult
+} from './operations/list_databases';
+import { RemoveUserOperation, type RemoveUserOptions } from './operations/remove_user';
+import { RunAdminCommandOperation, type RunCommandOptions } from './operations/run_command';
+import {
+  ValidateCollectionOperation,
+  type ValidateCollectionOptions
+} from './operations/validate_collection';
+
+/** @internal */
+export interface AdminPrivate {
+  db: Db;
+}
+
+/**
+ * The **Admin** class is an internal class that allows convenient access to
+ * the admin functionality and commands for MongoDB.
+ *
+ * **ADMIN Cannot directly be instantiated**
+ * @public
+ *
+ * @example
+ * ```ts
+ * import { MongoClient } from 'mongodb';
+ *
+ * const client = new MongoClient('mongodb://localhost:27017');
+ * const admin = client.db().admin();
+ * const dbInfo = await admin.listDatabases();
+ * for (const db of dbInfo.databases) {
+ *   console.log(db.name);
+ * }
+ * ```
+ */
+export class Admin {
+  /** @internal */
+  s: AdminPrivate;
+
+  /**
+   * Create a new Admin instance
+   * @internal
+   */
+  constructor(db: Db) {
+    this.s = { db };
+  }
+
+  /**
+   * Execute a command
+   *
+   * The driver will ensure the following fields are attached to the command sent to the server:
+   * - `lsid` - sourced from an implicit session or options.session
+   * - `$readPreference` - defaults to primary or can be configured by options.readPreference
+   * - `$db` - sourced from the name of this database
+   *
+   * If the client has a serverApi setting:
+   * - `apiVersion`
+   * - `apiStrict`
+   * - `apiDeprecationErrors`
+   *
+   * When in a transaction:
+   * - `readConcern` - sourced from readConcern set on the TransactionOptions
+   * - `writeConcern` - sourced from writeConcern set on the TransactionOptions
+   *
+   * Attaching any of the above fields to the command will have no effect as the driver will overwrite the value.
+   *
+   * @param command - The command to execute
+   * @param options - Optional settings for the command
+   */
+  async command(command: Document, options?: RunCommandOptions): Promise<Document> {
+    return await executeOperation(
+      this.s.db.client,
+      new RunAdminCommandOperation(command, {
+        ...resolveBSONOptions(options),
+        session: options?.session,
+        readPreference: options?.readPreference,
+        timeoutMS: options?.timeoutMS ?? this.s.db.timeoutMS
+      })
+    );
+  }
+
+  /**
+   * Retrieve the server build information
+   *
+   * @param options - Optional settings for the command
+   */
+  async buildInfo(options?: CommandOperationOptions): Promise<Document> {
+    return await this.command({ buildinfo: 1 }, options);
+  }
+
+  /**
+   * Retrieve the server build information
+   *
+   * @param options - Optional settings for the command
+   */
+  async serverInfo(options?: CommandOperationOptions): Promise<Document> {
+    return await this.command({ buildinfo: 1 }, options);
+  }
+
+  /**
+   * Retrieve this db's server status.
+   *
+   * @param options - Optional settings for the command
+   */
+  async serverStatus(options?: CommandOperationOptions): Promise<Document> {
+    return await this.command({ serverStatus: 1 }, options);
+  }
+
+  /**
+   * Ping the MongoDB server and retrieve results
+   *
+   * @param options - Optional settings for the command
+   */
+  async ping(options?: CommandOperationOptions): Promise<Document> {
+    return await this.command({ ping: 1 }, options);
+  }
+
+  /**
+   * Remove a user from a database
+   *
+   * @param username - The username to remove
+   * @param options - Optional settings for the command
+   */
+  async removeUser(username: string, options?: RemoveUserOptions): Promise<boolean> {
+    return await executeOperation(
+      this.s.db.client,
+      new RemoveUserOperation(this.s.db, username, { dbName: 'admin', ...options })
+    );
+  }
+
+  /**
+   * Validate an existing collection
+   *
+   * @param collectionName - The name of the collection to validate.
+   * @param options - Optional settings for the command
+   */
+  async validateCollection(
+    collectionName: string,
+    options: ValidateCollectionOptions = {}
+  ): Promise<Document> {
+    return await executeOperation(
+      this.s.db.client,
+      new ValidateCollectionOperation(this, collectionName, options)
+    );
+  }
+
+  /**
+   * List the available databases
+   *
+   * @param options - Optional settings for the command
+   */
+  async listDatabases(options?: ListDatabasesOptions): Promise<ListDatabasesResult> {
+    return await executeOperation(
+      this.s.db.client,
+      new ListDatabasesOperation(this.s.db, { timeoutMS: this.s.db.timeoutMS, ...options })
+    );
+  }
+
+  /**
+   * Get ReplicaSet status
+   *
+   * @param options - Optional settings for the command
+   */
+  async replSetGetStatus(options?: CommandOperationOptions): Promise<Document> {
+    return await this.command({ replSetGetStatus: 1 }, options);
+  }
+}
diff --git a/backend/node_modules/mongodb/src/beta.ts b/backend/node_modules/mongodb/src/beta.ts
new file mode 100644
index 0000000..05c60fa
--- /dev/null
+++ b/backend/node_modules/mongodb/src/beta.ts
@@ -0,0 +1,22 @@
+import { type Document } from './bson';
+
+export * from './index';
+
+/**
+ * @internal
+ *
+ * Since we don't bundle tslib helpers, we need to polyfill this method.
+ *
+ * This is used in the generated JS.  Adapted from https://github.com/microsoft/TypeScript/blob/aafdfe5b3f76f5c41abeec412ce73c86da94c75f/src/compiler/factory/emitHelpers.ts#L1202.
+ */
+
+function __exportStar(mod: Document) {
+  for (const key of Object.keys(mod)) {
+    Object.defineProperty(exports, key, {
+      enumerable: true,
+      get: function () {
+        return mod[key];
+      }
+    });
+  }
+}
diff --git a/backend/node_modules/mongodb/src/bson.ts b/backend/node_modules/mongodb/src/bson.ts
new file mode 100644
index 0000000..f9db54d
--- /dev/null
+++ b/backend/node_modules/mongodb/src/bson.ts
@@ -0,0 +1,148 @@
+/* eslint-disable no-restricted-imports */
+import { BSON, type DeserializeOptions, type SerializeOptions } from 'bson';
+
+export {
+  Binary,
+  BSON,
+  BSONError,
+  BSONRegExp,
+  BSONSymbol,
+  BSONType,
+  calculateObjectSize,
+  Code,
+  DBRef,
+  Decimal128,
+  deserialize,
+  type DeserializeOptions,
+  Document,
+  Double,
+  EJSON,
+  EJSONOptions,
+  Int32,
+  Long,
+  MaxKey,
+  MinKey,
+  ObjectId,
+  type ObjectIdLike,
+  serialize,
+  Timestamp,
+  UUID
+} from 'bson';
+
+/** @internal */
+export type BSONElement = BSON.OnDemand['BSONElement'];
+
+export function parseToElementsToArray(bytes: Uint8Array, offset?: number): BSONElement[] {
+  const res = BSON.onDemand.parseToElements(bytes, offset);
+  return Array.isArray(res) ? res : [...res];
+}
+
+export const getInt32LE = BSON.onDemand.NumberUtils.getInt32LE;
+export const getFloat64LE = BSON.onDemand.NumberUtils.getFloat64LE;
+export const getBigInt64LE = BSON.onDemand.NumberUtils.getBigInt64LE;
+export const toUTF8 = BSON.onDemand.ByteUtils.toUTF8;
+
+/**
+ * BSON Serialization options.
+ * @public
+ */
+export interface BSONSerializeOptions
+  extends Omit<SerializeOptions, 'index'>,
+    Omit<
+      DeserializeOptions,
+      | 'evalFunctions'
+      | 'cacheFunctions'
+      | 'cacheFunctionsCrc32'
+      | 'allowObjectSmallerThanBufferSize'
+      | 'index'
+      | 'validation'
+    > {
+  /**
+   * Enabling the raw option will return a [Node.js Buffer](https://nodejs.org/api/buffer.html)
+   * which is allocated using [allocUnsafe API](https://nodejs.org/api/buffer.html#static-method-bufferallocunsafesize).
+   * See this section from the [Node.js Docs here](https://nodejs.org/api/buffer.html#what-makes-bufferallocunsafe-and-bufferallocunsafeslow-unsafe)
+   * for more detail about what "unsafe" refers to in this context.
+   * If you need to maintain your own editable clone of the bytes returned for an extended life time of the process, it is recommended you allocate
+   * your own buffer and clone the contents:
+   *
+   * @example
+   * ```ts
+   * const raw = await collection.findOne({}, { raw: true });
+   * const myBuffer = Buffer.alloc(raw.byteLength);
+   * myBuffer.set(raw, 0);
+   * // Only save and use `myBuffer` beyond this point
+   * ```
+   *
+   * @remarks
+   * Please note there is a known limitation where this option cannot be used at the MongoClient level (see [NODE-3946](https://jira.mongodb.org/browse/NODE-3946)).
+   * It does correctly work at `Db`, `Collection`, and per operation the same as other BSON options work.
+   */
+  raw?: boolean;
+
+  /** Enable utf8 validation when deserializing BSON documents.  Defaults to true. */
+  enableUtf8Validation?: boolean;
+}
+
+export function pluckBSONSerializeOptions(options: BSONSerializeOptions): BSONSerializeOptions {
+  const {
+    fieldsAsRaw,
+    useBigInt64,
+    promoteValues,
+    promoteBuffers,
+    promoteLongs,
+    serializeFunctions,
+    ignoreUndefined,
+    bsonRegExp,
+    raw,
+    enableUtf8Validation
+  } = options;
+  return {
+    fieldsAsRaw,
+    useBigInt64,
+    promoteValues,
+    promoteBuffers,
+    promoteLongs,
+    serializeFunctions,
+    ignoreUndefined,
+    bsonRegExp,
+    raw,
+    enableUtf8Validation
+  };
+}
+
+/**
+ * Merge the given BSONSerializeOptions, preferring options over the parent's options, and
+ * substituting defaults for values not set.
+ *
+ * @internal
+ */
+export function resolveBSONOptions(
+  options?: BSONSerializeOptions,
+  parent?: { bsonOptions?: BSONSerializeOptions }
+): BSONSerializeOptions {
+  const parentOptions = parent?.bsonOptions;
+  return {
+    raw: options?.raw ?? parentOptions?.raw ?? false,
+    useBigInt64: options?.useBigInt64 ?? parentOptions?.useBigInt64 ?? false,
+    promoteLongs: options?.promoteLongs ?? parentOptions?.promoteLongs ?? true,
+    promoteValues: options?.promoteValues ?? parentOptions?.promoteValues ?? true,
+    promoteBuffers: options?.promoteBuffers ?? parentOptions?.promoteBuffers ?? false,
+    ignoreUndefined: options?.ignoreUndefined ?? parentOptions?.ignoreUndefined ?? false,
+    bsonRegExp: options?.bsonRegExp ?? parentOptions?.bsonRegExp ?? false,
+    serializeFunctions: options?.serializeFunctions ?? parentOptions?.serializeFunctions ?? false,
+    fieldsAsRaw: options?.fieldsAsRaw ?? parentOptions?.fieldsAsRaw ?? {},
+    enableUtf8Validation:
+      options?.enableUtf8Validation ?? parentOptions?.enableUtf8Validation ?? true
+  };
+}
+
+/** @internal */
+export function parseUtf8ValidationOption(options?: { enableUtf8Validation?: boolean }): {
+  utf8: { writeErrors: false } | false;
+} {
+  const enableUtf8Validation = options?.enableUtf8Validation;
+  if (enableUtf8Validation === false) {
+    return { utf8: false };
+  }
+  return { utf8: { writeErrors: false } };
+}
diff --git a/backend/node_modules/mongodb/src/bulk/common.ts b/backend/node_modules/mongodb/src/bulk/common.ts
new file mode 100644
index 0000000..2201220
--- /dev/null
+++ b/backend/node_modules/mongodb/src/bulk/common.ts
@@ -0,0 +1,1273 @@
+import { type BSONSerializeOptions, type Document, EJSON, resolveBSONOptions } from '../bson';
+import type { Collection } from '../collection';
+import {
+  type AnyError,
+  MongoBatchReExecutionError,
+  MONGODB_ERROR_CODES,
+  MongoInvalidArgumentError,
+  MongoRuntimeError,
+  MongoServerError,
+  MongoWriteConcernError
+} from '../error';
+import type { Filter, OneOrMore, OptionalId, UpdateFilter, WithoutId } from '../mongo_types';
+import type { CollationOptions, CommandOperationOptions } from '../operations/command';
+import { DeleteOperation, type DeleteStatement, makeDeleteStatement } from '../operations/delete';
+import { executeOperation } from '../operations/execute_operation';
+import { InsertOperation } from '../operations/insert';
+import { AbstractOperation, type Hint } from '../operations/operation';
+import { makeUpdateStatement, UpdateOperation, type UpdateStatement } from '../operations/update';
+import type { Server } from '../sdam/server';
+import type { Topology } from '../sdam/topology';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import {
+  applyRetryableWrites,
+  getTopology,
+  hasAtomicOperators,
+  maybeAddIdToDocuments,
+  type MongoDBNamespace,
+  resolveOptions
+} from '../utils';
+import { WriteConcern } from '../write_concern';
+
+/** @internal */
+const kServerError = Symbol('serverError');
+
+/** @public */
+export const BatchType = Object.freeze({
+  INSERT: 1,
+  UPDATE: 2,
+  DELETE: 3
+} as const);
+
+/** @public */
+export type BatchType = (typeof BatchType)[keyof typeof BatchType];
+
+/** @public */
+export interface InsertOneModel<TSchema extends Document = Document> {
+  /** The document to insert. */
+  document: OptionalId<TSchema>;
+}
+
+/** @public */
+export interface DeleteOneModel<TSchema extends Document = Document> {
+  /** The filter to limit the deleted documents. */
+  filter: Filter<TSchema>;
+  /** Specifies a collation. */
+  collation?: CollationOptions;
+  /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+  hint?: Hint;
+}
+
+/** @public */
+export interface DeleteManyModel<TSchema extends Document = Document> {
+  /** The filter to limit the deleted documents. */
+  filter: Filter<TSchema>;
+  /** Specifies a collation. */
+  collation?: CollationOptions;
+  /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+  hint?: Hint;
+}
+
+/** @public */
+export interface ReplaceOneModel<TSchema extends Document = Document> {
+  /** The filter to limit the replaced document. */
+  filter: Filter<TSchema>;
+  /** The document with which to replace the matched document. */
+  replacement: WithoutId<TSchema>;
+  /** Specifies a collation. */
+  collation?: CollationOptions;
+  /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+  hint?: Hint;
+  /** When true, creates a new document if no document matches the query. */
+  upsert?: boolean;
+}
+
+/** @public */
+export interface UpdateOneModel<TSchema extends Document = Document> {
+  /** The filter to limit the updated documents. */
+  filter: Filter<TSchema>;
+  /**
+   * The modifications to apply. The value can be either:
+   * UpdateFilter<TSchema> - A document that contains update operator expressions,
+   * Document[] - an aggregation pipeline.
+   */
+  update: UpdateFilter<TSchema> | Document[];
+  /** A set of filters specifying to which array elements an update should apply. */
+  arrayFilters?: Document[];
+  /** Specifies a collation. */
+  collation?: CollationOptions;
+  /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+  hint?: Hint;
+  /** When true, creates a new document if no document matches the query. */
+  upsert?: boolean;
+}
+
+/** @public */
+export interface UpdateManyModel<TSchema extends Document = Document> {
+  /** The filter to limit the updated documents. */
+  filter: Filter<TSchema>;
+  /**
+   * The modifications to apply. The value can be either:
+   * UpdateFilter<TSchema> - A document that contains update operator expressions,
+   * Document[] - an aggregation pipeline.
+   */
+  update: UpdateFilter<TSchema> | Document[];
+  /** A set of filters specifying to which array elements an update should apply. */
+  arrayFilters?: Document[];
+  /** Specifies a collation. */
+  collation?: CollationOptions;
+  /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+  hint?: Hint;
+  /** When true, creates a new document if no document matches the query. */
+  upsert?: boolean;
+}
+
+/** @public */
+export type AnyBulkWriteOperation<TSchema extends Document = Document> =
+  | { insertOne: InsertOneModel<TSchema> }
+  | { replaceOne: ReplaceOneModel<TSchema> }
+  | { updateOne: UpdateOneModel<TSchema> }
+  | { updateMany: UpdateManyModel<TSchema> }
+  | { deleteOne: DeleteOneModel<TSchema> }
+  | { deleteMany: DeleteManyModel<TSchema> };
+
+/** @internal */
+export interface BulkResult {
+  ok: number;
+  writeErrors: WriteError[];
+  writeConcernErrors: WriteConcernError[];
+  insertedIds: Document[];
+  nInserted: number;
+  nUpserted: number;
+  nMatched: number;
+  nModified: number;
+  nRemoved: number;
+  upserted: Document[];
+}
+
+/**
+ * Keeps the state of a unordered batch so we can rewrite the results
+ * correctly after command execution
+ *
+ * @public
+ */
+export class Batch<T = Document> {
+  originalZeroIndex: number;
+  currentIndex: number;
+  originalIndexes: number[];
+  batchType: BatchType;
+  operations: T[];
+  size: number;
+  sizeBytes: number;
+
+  constructor(batchType: BatchType, originalZeroIndex: number) {
+    this.originalZeroIndex = originalZeroIndex;
+    this.currentIndex = 0;
+    this.originalIndexes = [];
+    this.batchType = batchType;
+    this.operations = [];
+    this.size = 0;
+    this.sizeBytes = 0;
+  }
+}
+
+/**
+ * @public
+ * The result of a bulk write.
+ */
+export class BulkWriteResult {
+  private readonly result: BulkResult;
+  /** Number of documents inserted. */
+  readonly insertedCount: number;
+  /** Number of documents matched for update. */
+  readonly matchedCount: number;
+  /** Number of documents modified. */
+  readonly modifiedCount: number;
+  /** Number of documents deleted. */
+  readonly deletedCount: number;
+  /** Number of documents upserted. */
+  readonly upsertedCount: number;
+  /** Upserted document generated Id's, hash key is the index of the originating operation */
+  readonly upsertedIds: { [key: number]: any };
+  /** Inserted document generated Id's, hash key is the index of the originating operation */
+  readonly insertedIds: { [key: number]: any };
+
+  private static generateIdMap(ids: Document[]): { [key: number]: any } {
+    const idMap: { [index: number]: any } = {};
+    for (const doc of ids) {
+      idMap[doc.index] = doc._id;
+    }
+    return idMap;
+  }
+
+  /**
+   * Create a new BulkWriteResult instance
+   * @internal
+   */
+  constructor(bulkResult: BulkResult, isOrdered: boolean) {
+    this.result = bulkResult;
+    this.insertedCount = this.result.nInserted ?? 0;
+    this.matchedCount = this.result.nMatched ?? 0;
+    this.modifiedCount = this.result.nModified ?? 0;
+    this.deletedCount = this.result.nRemoved ?? 0;
+    this.upsertedCount = this.result.upserted.length ?? 0;
+    this.upsertedIds = BulkWriteResult.generateIdMap(this.result.upserted);
+    this.insertedIds = BulkWriteResult.generateIdMap(
+      this.getSuccessfullyInsertedIds(bulkResult, isOrdered)
+    );
+    Object.defineProperty(this, 'result', { value: this.result, enumerable: false });
+  }
+
+  /** Evaluates to true if the bulk operation correctly executes */
+  get ok(): number {
+    return this.result.ok;
+  }
+
+  /**
+   * Returns document_ids that were actually inserted
+   * @internal
+   */
+  private getSuccessfullyInsertedIds(bulkResult: BulkResult, isOrdered: boolean): Document[] {
+    if (bulkResult.writeErrors.length === 0) return bulkResult.insertedIds;
+
+    if (isOrdered) {
+      return bulkResult.insertedIds.slice(0, bulkResult.writeErrors[0].index);
+    }
+
+    return bulkResult.insertedIds.filter(
+      ({ index }) => !bulkResult.writeErrors.some(writeError => index === writeError.index)
+    );
+  }
+
+  /** Returns the upserted id at the given index */
+  getUpsertedIdAt(index: number): Document | undefined {
+    return this.result.upserted[index];
+  }
+
+  /** Returns raw internal result */
+  getRawResponse(): Document {
+    return this.result;
+  }
+
+  /** Returns true if the bulk operation contains a write error */
+  hasWriteErrors(): boolean {
+    return this.result.writeErrors.length > 0;
+  }
+
+  /** Returns the number of write errors off the bulk operation */
+  getWriteErrorCount(): number {
+    return this.result.writeErrors.length;
+  }
+
+  /** Returns a specific write error object */
+  getWriteErrorAt(index: number): WriteError | undefined {
+    return index < this.result.writeErrors.length ? this.result.writeErrors[index] : undefined;
+  }
+
+  /** Retrieve all write errors */
+  getWriteErrors(): WriteError[] {
+    return this.result.writeErrors;
+  }
+
+  /** Retrieve the write concern error if one exists */
+  getWriteConcernError(): WriteConcernError | undefined {
+    if (this.result.writeConcernErrors.length === 0) {
+      return;
+    } else if (this.result.writeConcernErrors.length === 1) {
+      // Return the error
+      return this.result.writeConcernErrors[0];
+    } else {
+      // Combine the errors
+      let errmsg = '';
+      for (let i = 0; i < this.result.writeConcernErrors.length; i++) {
+        const err = this.result.writeConcernErrors[i];
+        errmsg = errmsg + err.errmsg;
+
+        // TODO: Something better
+        if (i === 0) errmsg = errmsg + ' and ';
+      }
+
+      return new WriteConcernError({ errmsg, code: MONGODB_ERROR_CODES.WriteConcernFailed });
+    }
+  }
+
+  toString(): string {
+    return `BulkWriteResult(${EJSON.stringify(this.result)})`;
+  }
+
+  isOk(): boolean {
+    return this.result.ok === 1;
+  }
+}
+
+/** @public */
+export interface WriteConcernErrorData {
+  code: number;
+  errmsg: string;
+  errInfo?: Document;
+}
+
+/**
+ * An error representing a failure by the server to apply the requested write concern to the bulk operation.
+ * @public
+ * @category Error
+ */
+export class WriteConcernError {
+  /** @internal */
+  [kServerError]: WriteConcernErrorData;
+
+  constructor(error: WriteConcernErrorData) {
+    this[kServerError] = error;
+  }
+
+  /** Write concern error code. */
+  get code(): number | undefined {
+    return this[kServerError].code;
+  }
+
+  /** Write concern error message. */
+  get errmsg(): string | undefined {
+    return this[kServerError].errmsg;
+  }
+
+  /** Write concern error info. */
+  get errInfo(): Document | undefined {
+    return this[kServerError].errInfo;
+  }
+
+  toJSON(): WriteConcernErrorData {
+    return this[kServerError];
+  }
+
+  toString(): string {
+    return `WriteConcernError(${this.errmsg})`;
+  }
+}
+
+/** @public */
+export interface BulkWriteOperationError {
+  index: number;
+  code: number;
+  errmsg: string;
+  errInfo: Document;
+  op: Document | UpdateStatement | DeleteStatement;
+}
+
+/**
+ * An error that occurred during a BulkWrite on the server.
+ * @public
+ * @category Error
+ */
+export class WriteError {
+  err: BulkWriteOperationError;
+
+  constructor(err: BulkWriteOperationError) {
+    this.err = err;
+  }
+
+  /** WriteError code. */
+  get code(): number {
+    return this.err.code;
+  }
+
+  /** WriteError original bulk operation index. */
+  get index(): number {
+    return this.err.index;
+  }
+
+  /** WriteError message. */
+  get errmsg(): string | undefined {
+    return this.err.errmsg;
+  }
+
+  /** WriteError details. */
+  get errInfo(): Document | undefined {
+    return this.err.errInfo;
+  }
+
+  /** Returns the underlying operation that caused the error */
+  getOperation(): Document {
+    return this.err.op;
+  }
+
+  toJSON(): { code: number; index: number; errmsg?: string; op: Document } {
+    return { code: this.err.code, index: this.err.index, errmsg: this.err.errmsg, op: this.err.op };
+  }
+
+  toString(): string {
+    return `WriteError(${JSON.stringify(this.toJSON())})`;
+  }
+}
+
+/** Merges results into shared data structure */
+export function mergeBatchResults(
+  batch: Batch,
+  bulkResult: BulkResult,
+  err?: AnyError,
+  result?: Document
+): void {
+  // If we have an error set the result to be the err object
+  if (err) {
+    result = err;
+  } else if (result && result.result) {
+    result = result.result;
+  }
+
+  if (result == null) {
+    return;
+  }
+
+  // Do we have a top level error stop processing and return
+  if (result.ok === 0 && bulkResult.ok === 1) {
+    bulkResult.ok = 0;
+
+    const writeError = {
+      index: 0,
+      code: result.code || 0,
+      errmsg: result.message,
+      errInfo: result.errInfo,
+      op: batch.operations[0]
+    };
+
+    bulkResult.writeErrors.push(new WriteError(writeError));
+    return;
+  } else if (result.ok === 0 && bulkResult.ok === 0) {
+    return;
+  }
+
+  // If we have an insert Batch type
+  if (isInsertBatch(batch) && result.n) {
+    bulkResult.nInserted = bulkResult.nInserted + result.n;
+  }
+
+  // If we have an insert Batch type
+  if (isDeleteBatch(batch) && result.n) {
+    bulkResult.nRemoved = bulkResult.nRemoved + result.n;
+  }
+
+  let nUpserted = 0;
+
+  // We have an array of upserted values, we need to rewrite the indexes
+  if (Array.isArray(result.upserted)) {
+    nUpserted = result.upserted.length;
+
+    for (let i = 0; i < result.upserted.length; i++) {
+      bulkResult.upserted.push({
+        index: result.upserted[i].index + batch.originalZeroIndex,
+        _id: result.upserted[i]._id
+      });
+    }
+  } else if (result.upserted) {
+    nUpserted = 1;
+
+    bulkResult.upserted.push({
+      index: batch.originalZeroIndex,
+      _id: result.upserted
+    });
+  }
+
+  // If we have an update Batch type
+  if (isUpdateBatch(batch) && result.n) {
+    const nModified = result.nModified;
+    bulkResult.nUpserted = bulkResult.nUpserted + nUpserted;
+    bulkResult.nMatched = bulkResult.nMatched + (result.n - nUpserted);
+
+    if (typeof nModified === 'number') {
+      bulkResult.nModified = bulkResult.nModified + nModified;
+    } else {
+      bulkResult.nModified = 0;
+    }
+  }
+
+  if (Array.isArray(result.writeErrors)) {
+    for (let i = 0; i < result.writeErrors.length; i++) {
+      const writeError = {
+        index: batch.originalIndexes[result.writeErrors[i].index],
+        code: result.writeErrors[i].code,
+        errmsg: result.writeErrors[i].errmsg,
+        errInfo: result.writeErrors[i].errInfo,
+        op: batch.operations[result.writeErrors[i].index]
+      };
+
+      bulkResult.writeErrors.push(new WriteError(writeError));
+    }
+  }
+
+  if (result.writeConcernError) {
+    bulkResult.writeConcernErrors.push(new WriteConcernError(result.writeConcernError));
+  }
+}
+
+async function executeCommands(
+  bulkOperation: BulkOperationBase,
+  options: BulkWriteOptions & { timeoutContext?: TimeoutContext | null }
+): Promise<BulkWriteResult> {
+  if (bulkOperation.s.batches.length === 0) {
+    return new BulkWriteResult(bulkOperation.s.bulkResult, bulkOperation.isOrdered);
+  }
+
+  for (const batch of bulkOperation.s.batches) {
+    const finalOptions = resolveOptions(bulkOperation, {
+      ...options,
+      ordered: bulkOperation.isOrdered
+    });
+
+    if (finalOptions.bypassDocumentValidation !== true) {
+      delete finalOptions.bypassDocumentValidation;
+    }
+
+    // Is the bypassDocumentValidation options specific
+    if (bulkOperation.s.bypassDocumentValidation === true) {
+      finalOptions.bypassDocumentValidation = true;
+    }
+
+    // Is the checkKeys option disabled
+    if (bulkOperation.s.checkKeys === false) {
+      finalOptions.checkKeys = false;
+    }
+
+    if (finalOptions.retryWrites) {
+      if (isUpdateBatch(batch)) {
+        finalOptions.retryWrites =
+          finalOptions.retryWrites && !batch.operations.some(op => op.multi);
+      }
+
+      if (isDeleteBatch(batch)) {
+        finalOptions.retryWrites =
+          finalOptions.retryWrites && !batch.operations.some(op => op.limit === 0);
+      }
+    }
+
+    const operation = isInsertBatch(batch)
+      ? new InsertOperation(bulkOperation.s.namespace, batch.operations, finalOptions)
+      : isUpdateBatch(batch)
+        ? new UpdateOperation(bulkOperation.s.namespace, batch.operations, finalOptions)
+        : isDeleteBatch(batch)
+          ? new DeleteOperation(bulkOperation.s.namespace, batch.operations, finalOptions)
+          : null;
+
+    if (operation == null) throw new MongoRuntimeError(`Unknown batchType: ${batch.batchType}`);
+
+    let thrownError = null;
+    let result;
+    try {
+      result = await executeOperation(
+        bulkOperation.s.collection.client,
+        operation,
+        finalOptions.timeoutContext
+      );
+    } catch (error) {
+      thrownError = error;
+    }
+
+    if (thrownError != null) {
+      if (thrownError instanceof MongoWriteConcernError) {
+        mergeBatchResults(batch, bulkOperation.s.bulkResult, thrownError, result);
+        const writeResult = new BulkWriteResult(
+          bulkOperation.s.bulkResult,
+          bulkOperation.isOrdered
+        );
+
+        throw new MongoBulkWriteError(
+          {
+            message: thrownError.result.writeConcernError.errmsg,
+            code: thrownError.result.writeConcernError.code
+          },
+          writeResult
+        );
+      } else {
+        // Error is a driver related error not a bulk op error, return early
+        throw new MongoBulkWriteError(
+          thrownError,
+          new BulkWriteResult(bulkOperation.s.bulkResult, bulkOperation.isOrdered)
+        );
+      }
+    }
+
+    mergeBatchResults(batch, bulkOperation.s.bulkResult, thrownError, result);
+    const writeResult = new BulkWriteResult(bulkOperation.s.bulkResult, bulkOperation.isOrdered);
+    bulkOperation.handleWriteError(writeResult);
+  }
+
+  bulkOperation.s.batches.length = 0;
+
+  const writeResult = new BulkWriteResult(bulkOperation.s.bulkResult, bulkOperation.isOrdered);
+  bulkOperation.handleWriteError(writeResult);
+  return writeResult;
+}
+
+/**
+ * An error indicating an unsuccessful Bulk Write
+ * @public
+ * @category Error
+ */
+export class MongoBulkWriteError extends MongoServerError {
+  result: BulkWriteResult;
+  writeErrors: OneOrMore<WriteError> = [];
+  err?: WriteConcernError;
+
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(
+    error:
+      | { message: string; code: number; writeErrors?: WriteError[] }
+      | WriteConcernError
+      | AnyError,
+    result: BulkWriteResult
+  ) {
+    super(error);
+
+    if (error instanceof WriteConcernError) this.err = error;
+    else if (!(error instanceof Error)) {
+      this.message = error.message;
+      this.code = error.code;
+      this.writeErrors = error.writeErrors ?? [];
+    }
+
+    this.result = result;
+    Object.assign(this, error);
+  }
+
+  override get name(): string {
+    return 'MongoBulkWriteError';
+  }
+
+  /** Number of documents inserted. */
+  get insertedCount(): number {
+    return this.result.insertedCount;
+  }
+  /** Number of documents matched for update. */
+  get matchedCount(): number {
+    return this.result.matchedCount;
+  }
+  /** Number of documents modified. */
+  get modifiedCount(): number {
+    return this.result.modifiedCount;
+  }
+  /** Number of documents deleted. */
+  get deletedCount(): number {
+    return this.result.deletedCount;
+  }
+  /** Number of documents upserted. */
+  get upsertedCount(): number {
+    return this.result.upsertedCount;
+  }
+  /** Inserted document generated Id's, hash key is the index of the originating operation */
+  get insertedIds(): { [key: number]: any } {
+    return this.result.insertedIds;
+  }
+  /** Upserted document generated Id's, hash key is the index of the originating operation */
+  get upsertedIds(): { [key: number]: any } {
+    return this.result.upsertedIds;
+  }
+}
+
+/**
+ * A builder object that is returned from {@link BulkOperationBase#find}.
+ * Is used to build a write operation that involves a query filter.
+ *
+ * @public
+ */
+export class FindOperators {
+  bulkOperation: BulkOperationBase;
+
+  /**
+   * Creates a new FindOperators object.
+   * @internal
+   */
+  constructor(bulkOperation: BulkOperationBase) {
+    this.bulkOperation = bulkOperation;
+  }
+
+  /** Add a multiple update operation to the bulk operation */
+  update(updateDocument: Document | Document[]): BulkOperationBase {
+    const currentOp = buildCurrentOp(this.bulkOperation);
+    return this.bulkOperation.addToOperationsList(
+      BatchType.UPDATE,
+      makeUpdateStatement(currentOp.selector, updateDocument, {
+        ...currentOp,
+        multi: true
+      })
+    );
+  }
+
+  /** Add a single update operation to the bulk operation */
+  updateOne(updateDocument: Document | Document[]): BulkOperationBase {
+    if (!hasAtomicOperators(updateDocument)) {
+      throw new MongoInvalidArgumentError('Update document requires atomic operators');
+    }
+
+    const currentOp = buildCurrentOp(this.bulkOperation);
+    return this.bulkOperation.addToOperationsList(
+      BatchType.UPDATE,
+      makeUpdateStatement(currentOp.selector, updateDocument, { ...currentOp, multi: false })
+    );
+  }
+
+  /** Add a replace one operation to the bulk operation */
+  replaceOne(replacement: Document): BulkOperationBase {
+    if (hasAtomicOperators(replacement)) {
+      throw new MongoInvalidArgumentError('Replacement document must not use atomic operators');
+    }
+
+    const currentOp = buildCurrentOp(this.bulkOperation);
+    return this.bulkOperation.addToOperationsList(
+      BatchType.UPDATE,
+      makeUpdateStatement(currentOp.selector, replacement, { ...currentOp, multi: false })
+    );
+  }
+
+  /** Add a delete one operation to the bulk operation */
+  deleteOne(): BulkOperationBase {
+    const currentOp = buildCurrentOp(this.bulkOperation);
+    return this.bulkOperation.addToOperationsList(
+      BatchType.DELETE,
+      makeDeleteStatement(currentOp.selector, { ...currentOp, limit: 1 })
+    );
+  }
+
+  /** Add a delete many operation to the bulk operation */
+  delete(): BulkOperationBase {
+    const currentOp = buildCurrentOp(this.bulkOperation);
+    return this.bulkOperation.addToOperationsList(
+      BatchType.DELETE,
+      makeDeleteStatement(currentOp.selector, { ...currentOp, limit: 0 })
+    );
+  }
+
+  /** Upsert modifier for update bulk operation, noting that this operation is an upsert. */
+  upsert(): this {
+    if (!this.bulkOperation.s.currentOp) {
+      this.bulkOperation.s.currentOp = {};
+    }
+
+    this.bulkOperation.s.currentOp.upsert = true;
+    return this;
+  }
+
+  /** Specifies the collation for the query condition. */
+  collation(collation: CollationOptions): this {
+    if (!this.bulkOperation.s.currentOp) {
+      this.bulkOperation.s.currentOp = {};
+    }
+
+    this.bulkOperation.s.currentOp.collation = collation;
+    return this;
+  }
+
+  /** Specifies arrayFilters for UpdateOne or UpdateMany bulk operations. */
+  arrayFilters(arrayFilters: Document[]): this {
+    if (!this.bulkOperation.s.currentOp) {
+      this.bulkOperation.s.currentOp = {};
+    }
+
+    this.bulkOperation.s.currentOp.arrayFilters = arrayFilters;
+    return this;
+  }
+
+  /** Specifies hint for the bulk operation. */
+  hint(hint: Hint): this {
+    if (!this.bulkOperation.s.currentOp) {
+      this.bulkOperation.s.currentOp = {};
+    }
+
+    this.bulkOperation.s.currentOp.hint = hint;
+    return this;
+  }
+}
+
+/** @internal */
+export interface BulkOperationPrivate {
+  bulkResult: BulkResult;
+  currentBatch?: Batch;
+  currentIndex: number;
+  // ordered specific
+  currentBatchSize: number;
+  currentBatchSizeBytes: number;
+  // unordered specific
+  currentInsertBatch?: Batch;
+  currentUpdateBatch?: Batch;
+  currentRemoveBatch?: Batch;
+  batches: Batch[];
+  // Write concern
+  writeConcern?: WriteConcern;
+  // Max batch size options
+  maxBsonObjectSize: number;
+  maxBatchSizeBytes: number;
+  maxWriteBatchSize: number;
+  maxKeySize: number;
+  // Namespace
+  namespace: MongoDBNamespace;
+  // Topology
+  topology: Topology;
+  // Options
+  options: BulkWriteOptions;
+  // BSON options
+  bsonOptions: BSONSerializeOptions;
+  // Document used to build a bulk operation
+  currentOp?: Document;
+  // Executed
+  executed: boolean;
+  // Collection
+  collection: Collection;
+  // Fundamental error
+  err?: AnyError;
+  // check keys
+  checkKeys: boolean;
+  bypassDocumentValidation?: boolean;
+}
+
+/** @public */
+export interface BulkWriteOptions extends CommandOperationOptions {
+  /**
+   * Allow driver to bypass schema validation.
+   * @defaultValue `false` - documents will be validated by default
+   **/
+  bypassDocumentValidation?: boolean;
+  /**
+   * If true, when an insert fails, don't execute the remaining writes.
+   * If false, continue with remaining inserts when one fails.
+   * @defaultValue `true` - inserts are ordered by default
+   */
+  ordered?: boolean;
+  /**
+   * Force server to assign _id values instead of driver.
+   * @defaultValue `false` - the driver generates `_id` fields by default
+   **/
+  forceServerObjectId?: boolean;
+  /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+  let?: Document;
+
+  /** @internal */
+  timeoutContext?: TimeoutContext;
+}
+
+/**
+ * TODO(NODE-4063)
+ * BulkWrites merge complexity is implemented in executeCommands
+ * This provides a vehicle to treat bulkOperations like any other operation (hence "shim")
+ * We would like this logic to simply live inside the BulkWriteOperation class
+ * @internal
+ */
+export class BulkWriteShimOperation extends AbstractOperation {
+  bulkOperation: BulkOperationBase;
+  constructor(bulkOperation: BulkOperationBase, options: BulkWriteOptions) {
+    super(options);
+    this.bulkOperation = bulkOperation;
+  }
+
+  get commandName(): string {
+    return 'bulkWrite' as const;
+  }
+
+  async execute(
+    _server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<any> {
+    if (this.options.session == null) {
+      // An implicit session could have been created by 'executeOperation'
+      // So if we stick it on finalOptions here, each bulk operation
+      // will use this same session, it'll be passed in the same way
+      // an explicit session would be
+      this.options.session = session;
+    }
+    return await executeCommands(this.bulkOperation, { ...this.options, timeoutContext });
+  }
+}
+
+/** @public */
+export abstract class BulkOperationBase {
+  isOrdered: boolean;
+  /** @internal */
+  s: BulkOperationPrivate;
+  operationId?: number;
+
+  /**
+   * Create a new OrderedBulkOperation or UnorderedBulkOperation instance
+   * @internal
+   */
+  constructor(
+    private collection: Collection,
+    options: BulkWriteOptions,
+    isOrdered: boolean
+  ) {
+    // determine whether bulkOperation is ordered or unordered
+    this.isOrdered = isOrdered;
+
+    const topology = getTopology(collection);
+    options = options == null ? {} : options;
+    // TODO Bring from driver information in hello
+    // Get the namespace for the write operations
+    const namespace = collection.s.namespace;
+    // Used to mark operation as executed
+    const executed = false;
+
+    // Current item
+    const currentOp = undefined;
+
+    // Set max byte size
+    const hello = topology.lastHello();
+
+    // If we have autoEncryption on, batch-splitting must be done on 2mb chunks, but single documents
+    // over 2mb are still allowed
+    const usingAutoEncryption = !!(topology.s.options && topology.s.options.autoEncrypter);
+    const maxBsonObjectSize =
+      hello && hello.maxBsonObjectSize ? hello.maxBsonObjectSize : 1024 * 1024 * 16;
+    const maxBatchSizeBytes = usingAutoEncryption ? 1024 * 1024 * 2 : maxBsonObjectSize;
+    const maxWriteBatchSize = hello && hello.maxWriteBatchSize ? hello.maxWriteBatchSize : 1000;
+
+    // Calculates the largest possible size of an Array key, represented as a BSON string
+    // element. This calculation:
+    //     1 byte for BSON type
+    //     # of bytes = length of (string representation of (maxWriteBatchSize - 1))
+    //   + 1 bytes for null terminator
+    const maxKeySize = (maxWriteBatchSize - 1).toString(10).length + 2;
+
+    // Final options for retryable writes
+    let finalOptions = Object.assign({}, options);
+    finalOptions = applyRetryableWrites(finalOptions, collection.s.db);
+
+    // Final results
+    const bulkResult: BulkResult = {
+      ok: 1,
+      writeErrors: [],
+      writeConcernErrors: [],
+      insertedIds: [],
+      nInserted: 0,
+      nUpserted: 0,
+      nMatched: 0,
+      nModified: 0,
+      nRemoved: 0,
+      upserted: []
+    };
+
+    // Internal state
+    this.s = {
+      // Final result
+      bulkResult,
+      // Current batch state
+      currentBatch: undefined,
+      currentIndex: 0,
+      // ordered specific
+      currentBatchSize: 0,
+      currentBatchSizeBytes: 0,
+      // unordered specific
+      currentInsertBatch: undefined,
+      currentUpdateBatch: undefined,
+      currentRemoveBatch: undefined,
+      batches: [],
+      // Write concern
+      writeConcern: WriteConcern.fromOptions(options),
+      // Max batch size options
+      maxBsonObjectSize,
+      maxBatchSizeBytes,
+      maxWriteBatchSize,
+      maxKeySize,
+      // Namespace
+      namespace,
+      // Topology
+      topology,
+      // Options
+      options: finalOptions,
+      // BSON options
+      bsonOptions: resolveBSONOptions(options),
+      // Current operation
+      currentOp,
+      // Executed
+      executed,
+      // Collection
+      collection,
+      // Fundamental error
+      err: undefined,
+      // check keys
+      checkKeys: typeof options.checkKeys === 'boolean' ? options.checkKeys : false
+    };
+
+    // bypass Validation
+    if (options.bypassDocumentValidation === true) {
+      this.s.bypassDocumentValidation = true;
+    }
+  }
+
+  /**
+   * Add a single insert document to the bulk operation
+   *
+   * @example
+   * ```ts
+   * const bulkOp = collection.initializeOrderedBulkOp();
+   *
+   * // Adds three inserts to the bulkOp.
+   * bulkOp
+   *   .insert({ a: 1 })
+   *   .insert({ b: 2 })
+   *   .insert({ c: 3 });
+   * await bulkOp.execute();
+   * ```
+   */
+  insert(document: Document): BulkOperationBase {
+    maybeAddIdToDocuments(this.collection, document, {
+      forceServerObjectId: this.shouldForceServerObjectId()
+    });
+
+    return this.addToOperationsList(BatchType.INSERT, document);
+  }
+
+  /**
+   * Builds a find operation for an update/updateOne/delete/deleteOne/replaceOne.
+   * Returns a builder object used to complete the definition of the operation.
+   *
+   * @example
+   * ```ts
+   * const bulkOp = collection.initializeOrderedBulkOp();
+   *
+   * // Add an updateOne to the bulkOp
+   * bulkOp.find({ a: 1 }).updateOne({ $set: { b: 2 } });
+   *
+   * // Add an updateMany to the bulkOp
+   * bulkOp.find({ c: 3 }).update({ $set: { d: 4 } });
+   *
+   * // Add an upsert
+   * bulkOp.find({ e: 5 }).upsert().updateOne({ $set: { f: 6 } });
+   *
+   * // Add a deletion
+   * bulkOp.find({ g: 7 }).deleteOne();
+   *
+   * // Add a multi deletion
+   * bulkOp.find({ h: 8 }).delete();
+   *
+   * // Add a replaceOne
+   * bulkOp.find({ i: 9 }).replaceOne({writeConcern: { j: 10 }});
+   *
+   * // Update using a pipeline (requires Mongodb 4.2 or higher)
+   * bulk.find({ k: 11, y: { $exists: true }, z: { $exists: true } }).updateOne([
+   *   { $set: { total: { $sum: [ '$y', '$z' ] } } }
+   * ]);
+   *
+   * // All of the ops will now be executed
+   * await bulkOp.execute();
+   * ```
+   */
+  find(selector: Document): FindOperators {
+    if (!selector) {
+      throw new MongoInvalidArgumentError('Bulk find operation must specify a selector');
+    }
+
+    // Save a current selector
+    this.s.currentOp = {
+      selector: selector
+    };
+
+    return new FindOperators(this);
+  }
+
+  /** Specifies a raw operation to perform in the bulk write. */
+  raw(op: AnyBulkWriteOperation): this {
+    if (op == null || typeof op !== 'object') {
+      throw new MongoInvalidArgumentError('Operation must be an object with an operation key');
+    }
+    if ('insertOne' in op) {
+      const forceServerObjectId = this.shouldForceServerObjectId();
+      const document =
+        op.insertOne && op.insertOne.document == null
+          ? // TODO(NODE-6003): remove support for omitting the `documents` subdocument in bulk inserts
+            (op.insertOne as Document)
+          : op.insertOne.document;
+
+      maybeAddIdToDocuments(this.collection, document, { forceServerObjectId });
+
+      return this.addToOperationsList(BatchType.INSERT, document);
+    }
+
+    if ('replaceOne' in op || 'updateOne' in op || 'updateMany' in op) {
+      if ('replaceOne' in op) {
+        if ('q' in op.replaceOne) {
+          throw new MongoInvalidArgumentError('Raw operations are not allowed');
+        }
+        const updateStatement = makeUpdateStatement(
+          op.replaceOne.filter,
+          op.replaceOne.replacement,
+          { ...op.replaceOne, multi: false }
+        );
+        if (hasAtomicOperators(updateStatement.u)) {
+          throw new MongoInvalidArgumentError('Replacement document must not use atomic operators');
+        }
+        return this.addToOperationsList(BatchType.UPDATE, updateStatement);
+      }
+
+      if ('updateOne' in op) {
+        if ('q' in op.updateOne) {
+          throw new MongoInvalidArgumentError('Raw operations are not allowed');
+        }
+        const updateStatement = makeUpdateStatement(op.updateOne.filter, op.updateOne.update, {
+          ...op.updateOne,
+          multi: false
+        });
+        if (!hasAtomicOperators(updateStatement.u)) {
+          throw new MongoInvalidArgumentError('Update document requires atomic operators');
+        }
+        return this.addToOperationsList(BatchType.UPDATE, updateStatement);
+      }
+
+      if ('updateMany' in op) {
+        if ('q' in op.updateMany) {
+          throw new MongoInvalidArgumentError('Raw operations are not allowed');
+        }
+        const updateStatement = makeUpdateStatement(op.updateMany.filter, op.updateMany.update, {
+          ...op.updateMany,
+          multi: true
+        });
+        if (!hasAtomicOperators(updateStatement.u)) {
+          throw new MongoInvalidArgumentError('Update document requires atomic operators');
+        }
+        return this.addToOperationsList(BatchType.UPDATE, updateStatement);
+      }
+    }
+
+    if ('deleteOne' in op) {
+      if ('q' in op.deleteOne) {
+        throw new MongoInvalidArgumentError('Raw operations are not allowed');
+      }
+      return this.addToOperationsList(
+        BatchType.DELETE,
+        makeDeleteStatement(op.deleteOne.filter, { ...op.deleteOne, limit: 1 })
+      );
+    }
+
+    if ('deleteMany' in op) {
+      if ('q' in op.deleteMany) {
+        throw new MongoInvalidArgumentError('Raw operations are not allowed');
+      }
+      return this.addToOperationsList(
+        BatchType.DELETE,
+        makeDeleteStatement(op.deleteMany.filter, { ...op.deleteMany, limit: 0 })
+      );
+    }
+
+    // otherwise an unknown operation was provided
+    throw new MongoInvalidArgumentError(
+      'bulkWrite only supports insertOne, updateOne, updateMany, deleteOne, deleteMany'
+    );
+  }
+
+  get length(): number {
+    return this.s.currentIndex;
+  }
+
+  get bsonOptions(): BSONSerializeOptions {
+    return this.s.bsonOptions;
+  }
+
+  get writeConcern(): WriteConcern | undefined {
+    return this.s.writeConcern;
+  }
+
+  get batches(): Batch[] {
+    const batches = [...this.s.batches];
+    if (this.isOrdered) {
+      if (this.s.currentBatch) batches.push(this.s.currentBatch);
+    } else {
+      if (this.s.currentInsertBatch) batches.push(this.s.currentInsertBatch);
+      if (this.s.currentUpdateBatch) batches.push(this.s.currentUpdateBatch);
+      if (this.s.currentRemoveBatch) batches.push(this.s.currentRemoveBatch);
+    }
+    return batches;
+  }
+
+  async execute(options: BulkWriteOptions = {}): Promise<BulkWriteResult> {
+    if (this.s.executed) {
+      throw new MongoBatchReExecutionError();
+    }
+
+    const writeConcern = WriteConcern.fromOptions(options);
+    if (writeConcern) {
+      this.s.writeConcern = writeConcern;
+    }
+
+    // If we have current batch
+    if (this.isOrdered) {
+      if (this.s.currentBatch) this.s.batches.push(this.s.currentBatch);
+    } else {
+      if (this.s.currentInsertBatch) this.s.batches.push(this.s.currentInsertBatch);
+      if (this.s.currentUpdateBatch) this.s.batches.push(this.s.currentUpdateBatch);
+      if (this.s.currentRemoveBatch) this.s.batches.push(this.s.currentRemoveBatch);
+    }
+    // If we have no operations in the bulk raise an error
+    if (this.s.batches.length === 0) {
+      throw new MongoInvalidArgumentError('Invalid BulkOperation, Batch cannot be empty');
+    }
+
+    this.s.executed = true;
+    const finalOptions = { ...this.s.options, ...options };
+    const operation = new BulkWriteShimOperation(this, finalOptions);
+
+    return await executeOperation(this.s.collection.client, operation, finalOptions.timeoutContext);
+  }
+
+  /**
+   * Handles the write error before executing commands
+   * @internal
+   */
+  handleWriteError(writeResult: BulkWriteResult): void {
+    if (this.s.bulkResult.writeErrors.length > 0) {
+      const msg = this.s.bulkResult.writeErrors[0].errmsg
+        ? this.s.bulkResult.writeErrors[0].errmsg
+        : 'write operation failed';
+
+      throw new MongoBulkWriteError(
+        {
+          message: msg,
+          code: this.s.bulkResult.writeErrors[0].code,
+          writeErrors: this.s.bulkResult.writeErrors
+        },
+        writeResult
+      );
+    }
+
+    const writeConcernError = writeResult.getWriteConcernError();
+    if (writeConcernError) {
+      throw new MongoBulkWriteError(writeConcernError, writeResult);
+    }
+  }
+
+  abstract addToOperationsList(
+    batchType: BatchType,
+    document: Document | UpdateStatement | DeleteStatement
+  ): this;
+
+  private shouldForceServerObjectId(): boolean {
+    return (
+      this.s.options.forceServerObjectId === true ||
+      this.s.collection.s.db.options?.forceServerObjectId === true
+    );
+  }
+}
+
+function isInsertBatch(batch: Batch): boolean {
+  return batch.batchType === BatchType.INSERT;
+}
+
+function isUpdateBatch(batch: Batch): batch is Batch<UpdateStatement> {
+  return batch.batchType === BatchType.UPDATE;
+}
+
+function isDeleteBatch(batch: Batch): batch is Batch<DeleteStatement> {
+  return batch.batchType === BatchType.DELETE;
+}
+
+function buildCurrentOp(bulkOp: BulkOperationBase): Document {
+  let { currentOp } = bulkOp.s;
+  bulkOp.s.currentOp = undefined;
+  if (!currentOp) currentOp = {};
+  return currentOp;
+}
diff --git a/backend/node_modules/mongodb/src/bulk/ordered.ts b/backend/node_modules/mongodb/src/bulk/ordered.ts
new file mode 100644
index 0000000..2a9e9ec
--- /dev/null
+++ b/backend/node_modules/mongodb/src/bulk/ordered.ts
@@ -0,0 +1,83 @@
+import type { Document } from '../bson';
+import * as BSON from '../bson';
+import type { Collection } from '../collection';
+import { MongoInvalidArgumentError } from '../error';
+import type { DeleteStatement } from '../operations/delete';
+import type { UpdateStatement } from '../operations/update';
+import { Batch, BatchType, BulkOperationBase, type BulkWriteOptions } from './common';
+
+/** @public */
+export class OrderedBulkOperation extends BulkOperationBase {
+  /** @internal */
+  constructor(collection: Collection, options: BulkWriteOptions) {
+    super(collection, options, true);
+  }
+
+  addToOperationsList(
+    batchType: BatchType,
+    document: Document | UpdateStatement | DeleteStatement
+  ): this {
+    // Get the bsonSize
+    const bsonSize = BSON.calculateObjectSize(document, {
+      checkKeys: false,
+      // Since we don't know what the user selected for BSON options here,
+      // err on the safe side, and check the size with ignoreUndefined: false.
+      ignoreUndefined: false
+    } as any);
+
+    // Throw error if the doc is bigger than the max BSON size
+    if (bsonSize >= this.s.maxBsonObjectSize)
+      // TODO(NODE-3483): Change this to MongoBSONError
+      throw new MongoInvalidArgumentError(
+        `Document is larger than the maximum size ${this.s.maxBsonObjectSize}`
+      );
+
+    // Create a new batch object if we don't have a current one
+    if (this.s.currentBatch == null) {
+      this.s.currentBatch = new Batch(batchType, this.s.currentIndex);
+    }
+
+    const maxKeySize = this.s.maxKeySize;
+
+    // Check if we need to create a new batch
+    if (
+      // New batch if we exceed the max batch op size
+      this.s.currentBatchSize + 1 >= this.s.maxWriteBatchSize ||
+      // New batch if we exceed the maxBatchSizeBytes. Only matters if batch already has a doc,
+      // since we can't sent an empty batch
+      (this.s.currentBatchSize > 0 &&
+        this.s.currentBatchSizeBytes + maxKeySize + bsonSize >= this.s.maxBatchSizeBytes) ||
+      // New batch if the new op does not have the same op type as the current batch
+      this.s.currentBatch.batchType !== batchType
+    ) {
+      // Save the batch to the execution stack
+      this.s.batches.push(this.s.currentBatch);
+
+      // Create a new batch
+      this.s.currentBatch = new Batch(batchType, this.s.currentIndex);
+
+      // Reset the current size trackers
+      this.s.currentBatchSize = 0;
+      this.s.currentBatchSizeBytes = 0;
+    }
+
+    if (batchType === BatchType.INSERT) {
+      this.s.bulkResult.insertedIds.push({
+        index: this.s.currentIndex,
+        _id: (document as Document)._id
+      });
+    }
+
+    // We have an array of documents
+    if (Array.isArray(document)) {
+      throw new MongoInvalidArgumentError('Operation passed in cannot be an Array');
+    }
+
+    this.s.currentBatch.originalIndexes.push(this.s.currentIndex);
+    this.s.currentBatch.operations.push(document);
+    this.s.currentBatchSize += 1;
+    this.s.currentBatchSizeBytes += maxKeySize + bsonSize;
+    this.s.currentIndex += 1;
+    return this;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/bulk/unordered.ts b/backend/node_modules/mongodb/src/bulk/unordered.ts
new file mode 100644
index 0000000..97a1346
--- /dev/null
+++ b/backend/node_modules/mongodb/src/bulk/unordered.ts
@@ -0,0 +1,115 @@
+import type { Document } from '../bson';
+import * as BSON from '../bson';
+import type { Collection } from '../collection';
+import { MongoInvalidArgumentError } from '../error';
+import type { DeleteStatement } from '../operations/delete';
+import type { UpdateStatement } from '../operations/update';
+import {
+  Batch,
+  BatchType,
+  BulkOperationBase,
+  type BulkWriteOptions,
+  type BulkWriteResult
+} from './common';
+
+/** @public */
+export class UnorderedBulkOperation extends BulkOperationBase {
+  /** @internal */
+  constructor(collection: Collection, options: BulkWriteOptions) {
+    super(collection, options, false);
+  }
+
+  override handleWriteError(writeResult: BulkWriteResult): void {
+    if (this.s.batches.length) {
+      return;
+    }
+
+    return super.handleWriteError(writeResult);
+  }
+
+  addToOperationsList(
+    batchType: BatchType,
+    document: Document | UpdateStatement | DeleteStatement
+  ): this {
+    // Get the bsonSize
+    const bsonSize = BSON.calculateObjectSize(document, {
+      checkKeys: false,
+
+      // Since we don't know what the user selected for BSON options here,
+      // err on the safe side, and check the size with ignoreUndefined: false.
+      ignoreUndefined: false
+    } as any);
+
+    // Throw error if the doc is bigger than the max BSON size
+    if (bsonSize >= this.s.maxBsonObjectSize) {
+      // TODO(NODE-3483): Change this to MongoBSONError
+      throw new MongoInvalidArgumentError(
+        `Document is larger than the maximum size ${this.s.maxBsonObjectSize}`
+      );
+    }
+
+    // Holds the current batch
+    this.s.currentBatch = undefined;
+    // Get the right type of batch
+    if (batchType === BatchType.INSERT) {
+      this.s.currentBatch = this.s.currentInsertBatch;
+    } else if (batchType === BatchType.UPDATE) {
+      this.s.currentBatch = this.s.currentUpdateBatch;
+    } else if (batchType === BatchType.DELETE) {
+      this.s.currentBatch = this.s.currentRemoveBatch;
+    }
+
+    const maxKeySize = this.s.maxKeySize;
+
+    // Create a new batch object if we don't have a current one
+    if (this.s.currentBatch == null) {
+      this.s.currentBatch = new Batch(batchType, this.s.currentIndex);
+    }
+
+    // Check if we need to create a new batch
+    if (
+      // New batch if we exceed the max batch op size
+      this.s.currentBatch.size + 1 >= this.s.maxWriteBatchSize ||
+      // New batch if we exceed the maxBatchSizeBytes. Only matters if batch already has a doc,
+      // since we can't sent an empty batch
+      (this.s.currentBatch.size > 0 &&
+        this.s.currentBatch.sizeBytes + maxKeySize + bsonSize >= this.s.maxBatchSizeBytes) ||
+      // New batch if the new op does not have the same op type as the current batch
+      this.s.currentBatch.batchType !== batchType
+    ) {
+      // Save the batch to the execution stack
+      this.s.batches.push(this.s.currentBatch);
+
+      // Create a new batch
+      this.s.currentBatch = new Batch(batchType, this.s.currentIndex);
+    }
+
+    // We have an array of documents
+    if (Array.isArray(document)) {
+      throw new MongoInvalidArgumentError('Operation passed in cannot be an Array');
+    }
+
+    this.s.currentBatch.operations.push(document);
+    this.s.currentBatch.originalIndexes.push(this.s.currentIndex);
+    this.s.currentIndex = this.s.currentIndex + 1;
+
+    // Save back the current Batch to the right type
+    if (batchType === BatchType.INSERT) {
+      this.s.currentInsertBatch = this.s.currentBatch;
+      this.s.bulkResult.insertedIds.push({
+        index: this.s.bulkResult.insertedIds.length,
+        _id: (document as Document)._id
+      });
+    } else if (batchType === BatchType.UPDATE) {
+      this.s.currentUpdateBatch = this.s.currentBatch;
+    } else if (batchType === BatchType.DELETE) {
+      this.s.currentRemoveBatch = this.s.currentBatch;
+    }
+
+    // Update current batch size
+    this.s.currentBatch.size += 1;
+    this.s.currentBatch.sizeBytes += maxKeySize + bsonSize;
+
+    return this;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/change_stream.ts b/backend/node_modules/mongodb/src/change_stream.ts
new file mode 100644
index 0000000..c7b21b7
--- /dev/null
+++ b/backend/node_modules/mongodb/src/change_stream.ts
@@ -0,0 +1,1084 @@
+import type { Readable } from 'stream';
+
+import type { Binary, Document, Timestamp } from './bson';
+import { Collection } from './collection';
+import { CHANGE, CLOSE, END, ERROR, INIT, MORE, RESPONSE, RESUME_TOKEN_CHANGED } from './constants';
+import { type CursorStreamOptions, CursorTimeoutContext } from './cursor/abstract_cursor';
+import { ChangeStreamCursor, type ChangeStreamCursorOptions } from './cursor/change_stream_cursor';
+import { Db } from './db';
+import {
+  type AnyError,
+  isResumableError,
+  MongoAPIError,
+  MongoChangeStreamError,
+  MongoOperationTimeoutError,
+  MongoRuntimeError
+} from './error';
+import { MongoClient } from './mongo_client';
+import { type InferIdType, TypedEventEmitter } from './mongo_types';
+import type { AggregateOptions } from './operations/aggregate';
+import type { CollationOptions, OperationParent } from './operations/command';
+import type { ReadPreference } from './read_preference';
+import { type AsyncDisposable, configureResourceManagement } from './resource_management';
+import type { ServerSessionId } from './sessions';
+import { CSOTTimeoutContext, type TimeoutContext } from './timeout';
+import { filterOptions, getTopology, type MongoDBNamespace, squashError } from './utils';
+
+/** @internal */
+const kCursorStream = Symbol('cursorStream');
+/** @internal */
+const kClosed = Symbol('closed');
+/** @internal */
+const kMode = Symbol('mode');
+
+const CHANGE_STREAM_OPTIONS = [
+  'resumeAfter',
+  'startAfter',
+  'startAtOperationTime',
+  'fullDocument',
+  'fullDocumentBeforeChange',
+  'showExpandedEvents'
+] as const;
+
+const CHANGE_DOMAIN_TYPES = {
+  COLLECTION: Symbol('Collection'),
+  DATABASE: Symbol('Database'),
+  CLUSTER: Symbol('Cluster')
+};
+
+const CHANGE_STREAM_EVENTS = [RESUME_TOKEN_CHANGED, END, CLOSE] as const;
+
+const NO_RESUME_TOKEN_ERROR =
+  'A change stream document has been received that lacks a resume token (_id).';
+const CHANGESTREAM_CLOSED_ERROR = 'ChangeStream is closed';
+
+/**
+ * @public
+ * @deprecated Please use the ChangeStreamCursorOptions type instead.
+ */
+export interface ResumeOptions {
+  startAtOperationTime?: Timestamp;
+  batchSize?: number;
+  maxAwaitTimeMS?: number;
+  collation?: CollationOptions;
+  readPreference?: ReadPreference;
+  resumeAfter?: ResumeToken;
+  startAfter?: ResumeToken;
+  fullDocument?: string;
+}
+
+/**
+ * Represents the logical starting point for a new ChangeStream or resuming a ChangeStream on the server.
+ * @see https://www.mongodb.com/docs/manual/changeStreams/#std-label-change-stream-resume
+ * @public
+ */
+export type ResumeToken = unknown;
+
+/**
+ * Represents a specific point in time on a server. Can be retrieved by using `db.command()`
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/method/db.runCommand/#response
+ */
+export type OperationTime = Timestamp;
+
+/**
+ * Options that can be passed to a ChangeStream. Note that startAfter, resumeAfter, and startAtOperationTime are all mutually exclusive, and the server will error if more than one is specified.
+ * @public
+ */
+export interface ChangeStreamOptions extends Omit<AggregateOptions, 'writeConcern'> {
+  /**
+   * Allowed values: 'updateLookup', 'whenAvailable', 'required'.
+   *
+   * When set to 'updateLookup', the change notification for partial updates
+   * will include both a delta describing the changes to the document as well
+   * as a copy of the entire document that was changed from some time after
+   * the change occurred.
+   *
+   * When set to 'whenAvailable', configures the change stream to return the
+   * post-image of the modified document for replace and update change events
+   * if the post-image for this event is available.
+   *
+   * When set to 'required', the same behavior as 'whenAvailable' except that
+   * an error is raised if the post-image is not available.
+   */
+  fullDocument?: string;
+
+  /**
+   * Allowed values: 'whenAvailable', 'required', 'off'.
+   *
+   * The default is to not send a value, which is equivalent to 'off'.
+   *
+   * When set to 'whenAvailable', configures the change stream to return the
+   * pre-image of the modified document for replace, update, and delete change
+   * events if it is available.
+   *
+   * When set to 'required', the same behavior as 'whenAvailable' except that
+   * an error is raised if the pre-image is not available.
+   */
+  fullDocumentBeforeChange?: string;
+  /** The maximum amount of time for the server to wait on new documents to satisfy a change stream query. */
+  maxAwaitTimeMS?: number;
+  /**
+   * Allows you to start a changeStream after a specified event.
+   * @see https://www.mongodb.com/docs/manual/changeStreams/#resumeafter-for-change-streams
+   */
+  resumeAfter?: ResumeToken;
+  /**
+   * Similar to resumeAfter, but will allow you to start after an invalidated event.
+   * @see https://www.mongodb.com/docs/manual/changeStreams/#startafter-for-change-streams
+   */
+  startAfter?: ResumeToken;
+  /** Will start the changeStream after the specified operationTime. */
+  startAtOperationTime?: OperationTime;
+  /**
+   * The number of documents to return per batch.
+   * @see https://www.mongodb.com/docs/manual/reference/command/aggregate
+   */
+  batchSize?: number;
+
+  /**
+   * When enabled, configures the change stream to include extra change events.
+   *
+   * - createIndexes
+   * - dropIndexes
+   * - modify
+   * - create
+   * - shardCollection
+   * - reshardCollection
+   * - refineCollectionShardKey
+   */
+  showExpandedEvents?: boolean;
+}
+
+/** @public */
+export interface ChangeStreamNameSpace {
+  db: string;
+  coll: string;
+}
+
+/** @public */
+export interface ChangeStreamDocumentKey<TSchema extends Document = Document> {
+  /**
+   * For unsharded collections this contains a single field `_id`.
+   * For sharded collections, this will contain all the components of the shard key
+   */
+  documentKey: { _id: InferIdType<TSchema>; [shardKey: string]: any };
+}
+
+/** @public */
+export interface ChangeStreamSplitEvent {
+  /** Which fragment of the change this is. */
+  fragment: number;
+  /** The total number of fragments. */
+  of: number;
+}
+
+/** @public */
+export interface ChangeStreamDocumentCommon {
+  /**
+   * The id functions as an opaque token for use when resuming an interrupted
+   * change stream.
+   */
+  _id: ResumeToken;
+  /**
+   * The timestamp from the oplog entry associated with the event.
+   * For events that happened as part of a multi-document transaction, the associated change stream
+   * notifications will have the same clusterTime value, namely the time when the transaction was committed.
+   * On a sharded cluster, events that occur on different shards can have the same clusterTime but be
+   * associated with different transactions or even not be associated with any transaction.
+   * To identify events for a single transaction, you can use the combination of lsid and txnNumber in the change stream event document.
+   */
+  clusterTime?: Timestamp;
+
+  /**
+   * The transaction number.
+   * Only present if the operation is part of a multi-document transaction.
+   *
+   * **NOTE:** txnNumber can be a Long if promoteLongs is set to false
+   */
+  txnNumber?: number;
+
+  /**
+   * The identifier for the session associated with the transaction.
+   * Only present if the operation is part of a multi-document transaction.
+   */
+  lsid?: ServerSessionId;
+
+  /**
+   * When the change stream's backing aggregation pipeline contains the $changeStreamSplitLargeEvent
+   * stage, events larger than 16MB will be split into multiple events and contain the
+   * following information about which fragment the current event is.
+   */
+  splitEvent?: ChangeStreamSplitEvent;
+}
+
+/** @public */
+export interface ChangeStreamDocumentCollectionUUID {
+  /**
+   * The UUID (Binary subtype 4) of the collection that the operation was performed on.
+   *
+   * Only present when the `showExpandedEvents` flag is enabled.
+   *
+   * **NOTE:** collectionUUID will be converted to a NodeJS Buffer if the promoteBuffers
+   *    flag is enabled.
+   *
+   * @sinceServerVersion 6.1.0
+   */
+  collectionUUID: Binary;
+}
+
+/** @public */
+export interface ChangeStreamDocumentOperationDescription {
+  /**
+   * An description of the operation.
+   *
+   * Only present when the `showExpandedEvents` flag is enabled.
+   *
+   * @sinceServerVersion 6.1.0
+   */
+  operationDescription?: Document;
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/#insert-event
+ */
+export interface ChangeStreamInsertDocument<TSchema extends Document = Document>
+  extends ChangeStreamDocumentCommon,
+    ChangeStreamDocumentKey<TSchema>,
+    ChangeStreamDocumentCollectionUUID {
+  /** Describes the type of operation represented in this change notification */
+  operationType: 'insert';
+  /** This key will contain the document being inserted */
+  fullDocument: TSchema;
+  /** Namespace the insert event occurred on */
+  ns: ChangeStreamNameSpace;
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/#update-event
+ */
+export interface ChangeStreamUpdateDocument<TSchema extends Document = Document>
+  extends ChangeStreamDocumentCommon,
+    ChangeStreamDocumentKey<TSchema>,
+    ChangeStreamDocumentCollectionUUID {
+  /** Describes the type of operation represented in this change notification */
+  operationType: 'update';
+  /**
+   * This is only set if `fullDocument` is set to `'updateLookup'`
+   * Contains the point-in-time post-image of the modified document if the
+   * post-image is available and either 'required' or 'whenAvailable' was
+   * specified for the 'fullDocument' option when creating the change stream.
+   */
+  fullDocument?: TSchema;
+  /** Contains a description of updated and removed fields in this operation */
+  updateDescription: UpdateDescription<TSchema>;
+  /** Namespace the update event occurred on */
+  ns: ChangeStreamNameSpace;
+  /**
+   * Contains the pre-image of the modified or deleted document if the
+   * pre-image is available for the change event and either 'required' or
+   * 'whenAvailable' was specified for the 'fullDocumentBeforeChange' option
+   * when creating the change stream. If 'whenAvailable' was specified but the
+   * pre-image is unavailable, this will be explicitly set to null.
+   */
+  fullDocumentBeforeChange?: TSchema;
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/#replace-event
+ */
+export interface ChangeStreamReplaceDocument<TSchema extends Document = Document>
+  extends ChangeStreamDocumentCommon,
+    ChangeStreamDocumentKey<TSchema> {
+  /** Describes the type of operation represented in this change notification */
+  operationType: 'replace';
+  /** The fullDocument of a replace event represents the document after the insert of the replacement document */
+  fullDocument: TSchema;
+  /** Namespace the replace event occurred on */
+  ns: ChangeStreamNameSpace;
+  /**
+   * Contains the pre-image of the modified or deleted document if the
+   * pre-image is available for the change event and either 'required' or
+   * 'whenAvailable' was specified for the 'fullDocumentBeforeChange' option
+   * when creating the change stream. If 'whenAvailable' was specified but the
+   * pre-image is unavailable, this will be explicitly set to null.
+   */
+  fullDocumentBeforeChange?: TSchema;
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/#delete-event
+ */
+export interface ChangeStreamDeleteDocument<TSchema extends Document = Document>
+  extends ChangeStreamDocumentCommon,
+    ChangeStreamDocumentKey<TSchema>,
+    ChangeStreamDocumentCollectionUUID {
+  /** Describes the type of operation represented in this change notification */
+  operationType: 'delete';
+  /** Namespace the delete event occurred on */
+  ns: ChangeStreamNameSpace;
+  /**
+   * Contains the pre-image of the modified or deleted document if the
+   * pre-image is available for the change event and either 'required' or
+   * 'whenAvailable' was specified for the 'fullDocumentBeforeChange' option
+   * when creating the change stream. If 'whenAvailable' was specified but the
+   * pre-image is unavailable, this will be explicitly set to null.
+   */
+  fullDocumentBeforeChange?: TSchema;
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/#drop-event
+ */
+export interface ChangeStreamDropDocument
+  extends ChangeStreamDocumentCommon,
+    ChangeStreamDocumentCollectionUUID {
+  /** Describes the type of operation represented in this change notification */
+  operationType: 'drop';
+  /** Namespace the drop event occurred on */
+  ns: ChangeStreamNameSpace;
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/#rename-event
+ */
+export interface ChangeStreamRenameDocument
+  extends ChangeStreamDocumentCommon,
+    ChangeStreamDocumentCollectionUUID {
+  /** Describes the type of operation represented in this change notification */
+  operationType: 'rename';
+  /** The new name for the `ns.coll` collection */
+  to: { db: string; coll: string };
+  /** The "from" namespace that the rename occurred on */
+  ns: ChangeStreamNameSpace;
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/#dropdatabase-event
+ */
+export interface ChangeStreamDropDatabaseDocument extends ChangeStreamDocumentCommon {
+  /** Describes the type of operation represented in this change notification */
+  operationType: 'dropDatabase';
+  /** The database dropped */
+  ns: { db: string };
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/#invalidate-event
+ */
+export interface ChangeStreamInvalidateDocument extends ChangeStreamDocumentCommon {
+  /** Describes the type of operation represented in this change notification */
+  operationType: 'invalidate';
+}
+
+/**
+ * Only present when the `showExpandedEvents` flag is enabled.
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/createIndexes/#mongodb-data-createIndexes
+ */
+export interface ChangeStreamCreateIndexDocument
+  extends ChangeStreamDocumentCommon,
+    ChangeStreamDocumentCollectionUUID,
+    ChangeStreamDocumentOperationDescription {
+  /** Describes the type of operation represented in this change notification */
+  operationType: 'createIndexes';
+}
+
+/**
+ * Only present when the `showExpandedEvents` flag is enabled.
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/dropIndexes/#mongodb-data-dropIndexes
+ */
+export interface ChangeStreamDropIndexDocument
+  extends ChangeStreamDocumentCommon,
+    ChangeStreamDocumentCollectionUUID,
+    ChangeStreamDocumentOperationDescription {
+  /** Describes the type of operation represented in this change notification */
+  operationType: 'dropIndexes';
+}
+
+/**
+ * Only present when the `showExpandedEvents` flag is enabled.
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/modify/#mongodb-data-modify
+ */
+export interface ChangeStreamCollModDocument
+  extends ChangeStreamDocumentCommon,
+    ChangeStreamDocumentCollectionUUID {
+  /** Describes the type of operation represented in this change notification */
+  operationType: 'modify';
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/create/#mongodb-data-create
+ */
+export interface ChangeStreamCreateDocument
+  extends ChangeStreamDocumentCommon,
+    ChangeStreamDocumentCollectionUUID {
+  /** Describes the type of operation represented in this change notification */
+  operationType: 'create';
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/shardCollection/#mongodb-data-shardCollection
+ */
+export interface ChangeStreamShardCollectionDocument
+  extends ChangeStreamDocumentCommon,
+    ChangeStreamDocumentCollectionUUID,
+    ChangeStreamDocumentOperationDescription {
+  /** Describes the type of operation represented in this change notification */
+  operationType: 'shardCollection';
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/reshardCollection/#mongodb-data-reshardCollection
+ */
+export interface ChangeStreamReshardCollectionDocument
+  extends ChangeStreamDocumentCommon,
+    ChangeStreamDocumentCollectionUUID,
+    ChangeStreamDocumentOperationDescription {
+  /** Describes the type of operation represented in this change notification */
+  operationType: 'reshardCollection';
+}
+
+/**
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/change-events/refineCollectionShardKey/#mongodb-data-refineCollectionShardKey
+ */
+export interface ChangeStreamRefineCollectionShardKeyDocument
+  extends ChangeStreamDocumentCommon,
+    ChangeStreamDocumentCollectionUUID,
+    ChangeStreamDocumentOperationDescription {
+  /** Describes the type of operation represented in this change notification */
+  operationType: 'refineCollectionShardKey';
+}
+
+/** @public */
+export type ChangeStreamDocument<TSchema extends Document = Document> =
+  | ChangeStreamInsertDocument<TSchema>
+  | ChangeStreamUpdateDocument<TSchema>
+  | ChangeStreamReplaceDocument<TSchema>
+  | ChangeStreamDeleteDocument<TSchema>
+  | ChangeStreamDropDocument
+  | ChangeStreamRenameDocument
+  | ChangeStreamDropDatabaseDocument
+  | ChangeStreamInvalidateDocument
+  | ChangeStreamCreateIndexDocument
+  | ChangeStreamCreateDocument
+  | ChangeStreamCollModDocument
+  | ChangeStreamDropIndexDocument
+  | ChangeStreamShardCollectionDocument
+  | ChangeStreamReshardCollectionDocument
+  | ChangeStreamRefineCollectionShardKeyDocument;
+
+/** @public */
+export interface UpdateDescription<TSchema extends Document = Document> {
+  /**
+   * A document containing key:value pairs of names of the fields that were
+   * changed, and the new value for those fields.
+   */
+  updatedFields?: Partial<TSchema>;
+
+  /**
+   * An array of field names that were removed from the document.
+   */
+  removedFields?: string[];
+
+  /**
+   * An array of documents which record array truncations performed with pipeline-based updates using one or more of the following stages:
+   * - $addFields
+   * - $set
+   * - $replaceRoot
+   * - $replaceWith
+   */
+  truncatedArrays?: Array<{
+    /** The name of the truncated field. */
+    field: string;
+    /** The number of elements in the truncated array. */
+    newSize: number;
+  }>;
+
+  /**
+   * A document containing additional information about any ambiguous update paths from the update event.  The document
+   * maps the full ambiguous update path to an array containing the actual resolved components of the path.  For example,
+   * given a document shaped like `{ a: { '0': 0 } }`, and an update of `{ $inc: 'a.0' }`, disambiguated paths would look like
+   * the following:
+   *
+   * ```
+   *   {
+   *     'a.0': ['a', '0']
+   *   }
+   * ```
+   *
+   * This field is only present when there are ambiguous paths that are updated as a part of the update event and `showExpandedEvents`
+   * is enabled for the change stream.
+   * @sinceServerVersion 6.1.0
+   */
+  disambiguatedPaths?: Document;
+}
+
+/** @public */
+export type ChangeStreamEvents<
+  TSchema extends Document = Document,
+  TChange extends Document = ChangeStreamDocument<TSchema>
+> = {
+  resumeTokenChanged(token: ResumeToken): void;
+  init(response: any): void;
+  more(response?: any): void;
+  response(): void;
+  end(): void;
+  error(error: Error): void;
+  change(change: TChange): void;
+  /**
+   * @remarks Note that the `close` event is currently emitted whenever the internal `ChangeStreamCursor`
+   * instance is closed, which can occur multiple times for a given `ChangeStream` instance.
+   *
+   * TODO(NODE-6434): address this issue in NODE-6434
+   */
+  close(): void;
+};
+
+/**
+ * Creates a new Change Stream instance. Normally created using {@link Collection#watch|Collection.watch()}.
+ * @public
+ */
+export class ChangeStream<
+    TSchema extends Document = Document,
+    TChange extends Document = ChangeStreamDocument<TSchema>
+  >
+  extends TypedEventEmitter<ChangeStreamEvents<TSchema, TChange>>
+  implements AsyncDisposable
+{
+  /**
+   * @beta
+   * @experimental
+   * An alias for {@link ChangeStream.close|ChangeStream.close()}.
+   */
+  declare [Symbol.asyncDispose]: () => Promise<void>;
+  /** @internal */
+  async asyncDispose() {
+    await this.close();
+  }
+
+  pipeline: Document[];
+  /**
+   * @remarks WriteConcern can still be present on the options because
+   * we inherit options from the client/db/collection.  The
+   * key must be present on the options in order to delete it.
+   * This allows typescript to delete the key but will
+   * not allow a writeConcern to be assigned as a property on options.
+   */
+  options: ChangeStreamOptions & { writeConcern?: never };
+  parent: MongoClient | Db | Collection;
+  namespace: MongoDBNamespace;
+  type: symbol;
+  /** @internal */
+  cursor: ChangeStreamCursor<TSchema, TChange>;
+  streamOptions?: CursorStreamOptions;
+  /** @internal */
+  [kCursorStream]?: Readable & AsyncIterable<TChange>;
+  /** @internal */
+  [kClosed]: boolean;
+  /** @internal */
+  [kMode]: false | 'iterator' | 'emitter';
+
+  /** @event */
+  static readonly RESPONSE = RESPONSE;
+  /** @event */
+  static readonly MORE = MORE;
+  /** @event */
+  static readonly INIT = INIT;
+  /** @event */
+  static readonly CLOSE = CLOSE;
+  /**
+   * Fired for each new matching change in the specified namespace. Attaching a `change`
+   * event listener to a Change Stream will switch the stream into flowing mode. Data will
+   * then be passed as soon as it is available.
+   * @event
+   */
+  static readonly CHANGE = CHANGE;
+  /** @event */
+  static readonly END = END;
+  /** @event */
+  static readonly ERROR = ERROR;
+  /**
+   * Emitted each time the change stream stores a new resume token.
+   * @event
+   */
+  static readonly RESUME_TOKEN_CHANGED = RESUME_TOKEN_CHANGED;
+
+  private timeoutContext?: TimeoutContext;
+  /**
+   * Note that this property is here to uniquely identify a ChangeStream instance as the owner of
+   * the {@link CursorTimeoutContext} instance (see {@link ChangeStream._createChangeStreamCursor}) to ensure
+   * that {@link AbstractCursor.close} does not mutate the timeoutContext.
+   */
+  private contextOwner: symbol;
+  /**
+   * @internal
+   *
+   * @param parent - The parent object that created this change stream
+   * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents
+   */
+  constructor(
+    parent: OperationParent,
+    pipeline: Document[] = [],
+    options: ChangeStreamOptions = {}
+  ) {
+    super();
+
+    this.pipeline = pipeline;
+    this.options = { ...options };
+    let serverSelectionTimeoutMS: number;
+    delete this.options.writeConcern;
+
+    if (parent instanceof Collection) {
+      this.type = CHANGE_DOMAIN_TYPES.COLLECTION;
+      serverSelectionTimeoutMS = parent.s.db.client.options.serverSelectionTimeoutMS;
+    } else if (parent instanceof Db) {
+      this.type = CHANGE_DOMAIN_TYPES.DATABASE;
+      serverSelectionTimeoutMS = parent.client.options.serverSelectionTimeoutMS;
+    } else if (parent instanceof MongoClient) {
+      this.type = CHANGE_DOMAIN_TYPES.CLUSTER;
+      serverSelectionTimeoutMS = parent.options.serverSelectionTimeoutMS;
+    } else {
+      throw new MongoChangeStreamError(
+        'Parent provided to ChangeStream constructor must be an instance of Collection, Db, or MongoClient'
+      );
+    }
+
+    this.contextOwner = Symbol();
+    this.parent = parent;
+    this.namespace = parent.s.namespace;
+    if (!this.options.readPreference && parent.readPreference) {
+      this.options.readPreference = parent.readPreference;
+    }
+
+    // Create contained Change Stream cursor
+    this.cursor = this._createChangeStreamCursor(options);
+
+    this[kClosed] = false;
+    this[kMode] = false;
+
+    // Listen for any `change` listeners being added to ChangeStream
+    this.on('newListener', eventName => {
+      if (eventName === 'change' && this.cursor && this.listenerCount('change') === 0) {
+        this._streamEvents(this.cursor);
+      }
+    });
+
+    this.on('removeListener', eventName => {
+      if (eventName === 'change' && this.listenerCount('change') === 0 && this.cursor) {
+        this[kCursorStream]?.removeAllListeners('data');
+      }
+    });
+
+    if (this.options.timeoutMS != null) {
+      this.timeoutContext = new CSOTTimeoutContext({
+        timeoutMS: this.options.timeoutMS,
+        serverSelectionTimeoutMS
+      });
+    }
+  }
+
+  /** @internal */
+  get cursorStream(): (Readable & AsyncIterable<TChange>) | undefined {
+    return this[kCursorStream];
+  }
+
+  /** The cached resume token that is used to resume after the most recently returned change. */
+  get resumeToken(): ResumeToken {
+    return this.cursor?.resumeToken;
+  }
+
+  /** Check if there is any document still available in the Change Stream */
+  async hasNext(): Promise<boolean> {
+    this._setIsIterator();
+    // Change streams must resume indefinitely while each resume event succeeds.
+    // This loop continues until either a change event is received or until a resume attempt
+    // fails.
+
+    this.timeoutContext?.refresh();
+    try {
+      while (true) {
+        try {
+          const hasNext = await this.cursor.hasNext();
+          return hasNext;
+        } catch (error) {
+          try {
+            await this._processErrorIteratorMode(error, this.cursor.id != null);
+          } catch (error) {
+            if (error instanceof MongoOperationTimeoutError && this.cursor.id == null) {
+              throw error;
+            }
+            try {
+              await this.close();
+            } catch (error) {
+              squashError(error);
+            }
+            throw error;
+          }
+        }
+      }
+    } finally {
+      this.timeoutContext?.clear();
+    }
+  }
+
+  /** Get the next available document from the Change Stream. */
+  async next(): Promise<TChange> {
+    this._setIsIterator();
+    // Change streams must resume indefinitely while each resume event succeeds.
+    // This loop continues until either a change event is received or until a resume attempt
+    // fails.
+    this.timeoutContext?.refresh();
+
+    try {
+      while (true) {
+        try {
+          const change = await this.cursor.next();
+          const processedChange = this._processChange(change ?? null);
+          return processedChange;
+        } catch (error) {
+          try {
+            await this._processErrorIteratorMode(error, this.cursor.id != null);
+          } catch (error) {
+            if (error instanceof MongoOperationTimeoutError && this.cursor.id == null) {
+              throw error;
+            }
+            try {
+              await this.close();
+            } catch (error) {
+              squashError(error);
+            }
+            throw error;
+          }
+        }
+      }
+    } finally {
+      this.timeoutContext?.clear();
+    }
+  }
+
+  /**
+   * Try to get the next available document from the Change Stream's cursor or `null` if an empty batch is returned
+   */
+  async tryNext(): Promise<TChange | null> {
+    this._setIsIterator();
+    // Change streams must resume indefinitely while each resume event succeeds.
+    // This loop continues until either a change event is received or until a resume attempt
+    // fails.
+    this.timeoutContext?.refresh();
+
+    try {
+      while (true) {
+        try {
+          const change = await this.cursor.tryNext();
+          return change ?? null;
+        } catch (error) {
+          try {
+            await this._processErrorIteratorMode(error, this.cursor.id != null);
+          } catch (error) {
+            if (error instanceof MongoOperationTimeoutError && this.cursor.id == null) throw error;
+            try {
+              await this.close();
+            } catch (error) {
+              squashError(error);
+            }
+            throw error;
+          }
+        }
+      }
+    } finally {
+      this.timeoutContext?.clear();
+    }
+  }
+
+  async *[Symbol.asyncIterator](): AsyncGenerator<TChange, void, void> {
+    if (this.closed) {
+      return;
+    }
+
+    try {
+      // Change streams run indefinitely as long as errors are resumable
+      // So the only loop breaking condition is if `next()` throws
+      while (true) {
+        yield await this.next();
+      }
+    } finally {
+      try {
+        await this.close();
+      } catch (error) {
+        squashError(error);
+      }
+    }
+  }
+
+  /** Is the cursor closed */
+  get closed(): boolean {
+    return this[kClosed] || this.cursor.closed;
+  }
+
+  /**
+   * Frees the internal resources used by the change stream.
+   */
+  async close(): Promise<void> {
+    this.timeoutContext?.clear();
+    this.timeoutContext = undefined;
+    this[kClosed] = true;
+
+    const cursor = this.cursor;
+    try {
+      await cursor.close();
+    } finally {
+      this._endStream();
+    }
+  }
+
+  /**
+   * Return a modified Readable stream including a possible transform method.
+   *
+   * NOTE: When using a Stream to process change stream events, the stream will
+   * NOT automatically resume in the case a resumable error is encountered.
+   *
+   * @throws MongoChangeStreamError if the underlying cursor or the change stream is closed
+   */
+  stream(options?: CursorStreamOptions): Readable & AsyncIterable<TChange> {
+    if (this.closed) {
+      throw new MongoChangeStreamError(CHANGESTREAM_CLOSED_ERROR);
+    }
+
+    this.streamOptions = options;
+    return this.cursor.stream(options);
+  }
+
+  /** @internal */
+  private _setIsEmitter(): void {
+    if (this[kMode] === 'iterator') {
+      // TODO(NODE-3485): Replace with MongoChangeStreamModeError
+      throw new MongoAPIError(
+        'ChangeStream cannot be used as an EventEmitter after being used as an iterator'
+      );
+    }
+    this[kMode] = 'emitter';
+  }
+
+  /** @internal */
+  private _setIsIterator(): void {
+    if (this[kMode] === 'emitter') {
+      // TODO(NODE-3485): Replace with MongoChangeStreamModeError
+      throw new MongoAPIError(
+        'ChangeStream cannot be used as an iterator after being used as an EventEmitter'
+      );
+    }
+    this[kMode] = 'iterator';
+  }
+
+  /**
+   * Create a new change stream cursor based on self's configuration
+   * @internal
+   */
+  private _createChangeStreamCursor(
+    options: ChangeStreamOptions | ChangeStreamCursorOptions
+  ): ChangeStreamCursor<TSchema, TChange> {
+    const changeStreamStageOptions = filterOptions(options, CHANGE_STREAM_OPTIONS);
+    if (this.type === CHANGE_DOMAIN_TYPES.CLUSTER) {
+      changeStreamStageOptions.allChangesForCluster = true;
+    }
+    const pipeline = [{ $changeStream: changeStreamStageOptions }, ...this.pipeline];
+
+    const client: MongoClient | null =
+      this.type === CHANGE_DOMAIN_TYPES.CLUSTER
+        ? (this.parent as MongoClient)
+        : this.type === CHANGE_DOMAIN_TYPES.DATABASE
+          ? (this.parent as Db).client
+          : this.type === CHANGE_DOMAIN_TYPES.COLLECTION
+            ? (this.parent as Collection).client
+            : null;
+
+    if (client == null) {
+      // This should never happen because of the assertion in the constructor
+      throw new MongoRuntimeError(
+        `Changestream type should only be one of cluster, database, collection. Found ${this.type.toString()}`
+      );
+    }
+
+    const changeStreamCursor = new ChangeStreamCursor<TSchema, TChange>(
+      client,
+      this.namespace,
+      pipeline,
+      {
+        ...options,
+        timeoutContext: this.timeoutContext
+          ? new CursorTimeoutContext(this.timeoutContext, this.contextOwner)
+          : undefined
+      }
+    );
+
+    for (const event of CHANGE_STREAM_EVENTS) {
+      changeStreamCursor.on(event, e => this.emit(event, e));
+    }
+
+    if (this.listenerCount(ChangeStream.CHANGE) > 0) {
+      this._streamEvents(changeStreamCursor);
+    }
+
+    return changeStreamCursor;
+  }
+
+  /** @internal */
+  private _closeEmitterModeWithError(error: AnyError): void {
+    this.emit(ChangeStream.ERROR, error);
+
+    this.close().then(undefined, squashError);
+  }
+
+  /** @internal */
+  private _streamEvents(cursor: ChangeStreamCursor<TSchema, TChange>): void {
+    this._setIsEmitter();
+    const stream = this[kCursorStream] ?? cursor.stream();
+    this[kCursorStream] = stream;
+    stream.on('data', change => {
+      try {
+        const processedChange = this._processChange(change);
+        this.emit(ChangeStream.CHANGE, processedChange);
+      } catch (error) {
+        this.emit(ChangeStream.ERROR, error);
+      }
+      this.timeoutContext?.refresh();
+    });
+    stream.on('error', error => this._processErrorStreamMode(error, this.cursor.id != null));
+  }
+
+  /** @internal */
+  private _endStream(): void {
+    const cursorStream = this[kCursorStream];
+    if (cursorStream) {
+      ['data', 'close', 'end', 'error'].forEach(event => cursorStream.removeAllListeners(event));
+      cursorStream.destroy();
+    }
+
+    this[kCursorStream] = undefined;
+  }
+
+  /** @internal */
+  private _processChange(change: TChange | null): TChange {
+    if (this[kClosed]) {
+      // TODO(NODE-3485): Replace with MongoChangeStreamClosedError
+      throw new MongoAPIError(CHANGESTREAM_CLOSED_ERROR);
+    }
+
+    // a null change means the cursor has been notified, implicitly closing the change stream
+    if (change == null) {
+      // TODO(NODE-3485): Replace with MongoChangeStreamClosedError
+      throw new MongoRuntimeError(CHANGESTREAM_CLOSED_ERROR);
+    }
+
+    if (change && !change._id) {
+      throw new MongoChangeStreamError(NO_RESUME_TOKEN_ERROR);
+    }
+
+    // cache the resume token
+    this.cursor.cacheResumeToken(change._id);
+
+    // wipe the startAtOperationTime if there was one so that there won't be a conflict
+    // between resumeToken and startAtOperationTime if we need to reconnect the cursor
+    this.options.startAtOperationTime = undefined;
+
+    return change;
+  }
+
+  /** @internal */
+  private _processErrorStreamMode(changeStreamError: AnyError, cursorInitialized: boolean) {
+    // If the change stream has been closed explicitly, do not process error.
+    if (this[kClosed]) return;
+
+    if (
+      cursorInitialized &&
+      (isResumableError(changeStreamError, this.cursor.maxWireVersion) ||
+        changeStreamError instanceof MongoOperationTimeoutError)
+    ) {
+      this._endStream();
+
+      this.cursor
+        .close()
+        .then(
+          () => this._resume(changeStreamError),
+          e => {
+            squashError(e);
+            return this._resume(changeStreamError);
+          }
+        )
+        .then(
+          () => {
+            if (changeStreamError instanceof MongoOperationTimeoutError)
+              this.emit(ChangeStream.ERROR, changeStreamError);
+          },
+          () => this._closeEmitterModeWithError(changeStreamError)
+        );
+    } else {
+      this._closeEmitterModeWithError(changeStreamError);
+    }
+  }
+
+  /** @internal */
+  private async _processErrorIteratorMode(changeStreamError: AnyError, cursorInitialized: boolean) {
+    if (this[kClosed]) {
+      // TODO(NODE-3485): Replace with MongoChangeStreamClosedError
+      throw new MongoAPIError(CHANGESTREAM_CLOSED_ERROR);
+    }
+
+    if (
+      cursorInitialized &&
+      (isResumableError(changeStreamError, this.cursor.maxWireVersion) ||
+        changeStreamError instanceof MongoOperationTimeoutError)
+    ) {
+      try {
+        await this.cursor.close();
+      } catch (error) {
+        squashError(error);
+      }
+
+      await this._resume(changeStreamError);
+
+      if (changeStreamError instanceof MongoOperationTimeoutError) throw changeStreamError;
+    } else {
+      try {
+        await this.close();
+      } catch (error) {
+        squashError(error);
+      }
+
+      throw changeStreamError;
+    }
+  }
+
+  private async _resume(changeStreamError: AnyError) {
+    this.timeoutContext?.refresh();
+    const topology = getTopology(this.parent);
+    try {
+      await topology.selectServer(this.cursor.readPreference, {
+        operationName: 'reconnect topology in change stream',
+        timeoutContext: this.timeoutContext
+      });
+      this.cursor = this._createChangeStreamCursor(this.cursor.resumeOptions);
+    } catch {
+      // if the topology can't reconnect, close the stream
+      await this.close();
+      throw changeStreamError;
+    }
+  }
+}
+
+configureResourceManagement(ChangeStream.prototype);
diff --git a/backend/node_modules/mongodb/src/client-side-encryption/auto_encrypter.ts b/backend/node_modules/mongodb/src/client-side-encryption/auto_encrypter.ts
new file mode 100644
index 0000000..edf731b
--- /dev/null
+++ b/backend/node_modules/mongodb/src/client-side-encryption/auto_encrypter.ts
@@ -0,0 +1,452 @@
+import {
+  type MongoCrypt,
+  type MongoCryptConstructor,
+  type MongoCryptOptions
+} from 'mongodb-client-encryption';
+import * as net from 'net';
+
+import { deserialize, type Document, serialize } from '../bson';
+import { type CommandOptions, type ProxyOptions } from '../cmap/connection';
+import { kDecorateResult } from '../constants';
+import { getMongoDBClientEncryption } from '../deps';
+import { MongoRuntimeError } from '../error';
+import { MongoClient, type MongoClientOptions } from '../mongo_client';
+import { MongoDBCollectionNamespace } from '../utils';
+import { autoSelectSocketOptions } from './client_encryption';
+import * as cryptoCallbacks from './crypto_callbacks';
+import { MongoCryptInvalidArgumentError } from './errors';
+import { MongocryptdManager } from './mongocryptd_manager';
+import { type KMSProviders, refreshKMSCredentials } from './providers';
+import { type CSFLEKMSTlsOptions, StateMachine } from './state_machine';
+
+/** @public */
+export interface AutoEncryptionOptions {
+  /** @internal client for metadata lookups */
+  metadataClient?: MongoClient;
+  /** A `MongoClient` used to fetch keys from a key vault */
+  keyVaultClient?: MongoClient;
+  /** The namespace where keys are stored in the key vault */
+  keyVaultNamespace?: string;
+  /** Configuration options that are used by specific KMS providers during key generation, encryption, and decryption. */
+  kmsProviders?: KMSProviders;
+  /**
+   * A map of namespaces to a local JSON schema for encryption
+   *
+   * **NOTE**: Supplying options.schemaMap provides more security than relying on JSON Schemas obtained from the server.
+   * It protects against a malicious server advertising a false JSON Schema, which could trick the client into sending decrypted data that should be encrypted.
+   * Schemas supplied in the schemaMap only apply to configuring automatic encryption for Client-Side Field Level Encryption.
+   * Other validation rules in the JSON schema will not be enforced by the driver and will result in an error.
+   */
+  schemaMap?: Document;
+  /** Supply a schema for the encrypted fields in the document  */
+  encryptedFieldsMap?: Document;
+  /** Allows the user to bypass auto encryption, maintaining implicit decryption */
+  bypassAutoEncryption?: boolean;
+  /** Allows users to bypass query analysis */
+  bypassQueryAnalysis?: boolean;
+  options?: {
+    /** An optional hook to catch logging messages from the underlying encryption engine */
+    logger?: (level: AutoEncryptionLoggerLevel, message: string) => void;
+  };
+  extraOptions?: {
+    /**
+     * A local process the driver communicates with to determine how to encrypt values in a command.
+     * Defaults to "mongodb://%2Fvar%2Fmongocryptd.sock" if domain sockets are available or "mongodb://localhost:27020" otherwise
+     */
+    mongocryptdURI?: string;
+    /** If true, autoEncryption will not attempt to spawn a mongocryptd before connecting  */
+    mongocryptdBypassSpawn?: boolean;
+    /** The path to the mongocryptd executable on the system */
+    mongocryptdSpawnPath?: string;
+    /** Command line arguments to use when auto-spawning a mongocryptd */
+    mongocryptdSpawnArgs?: string[];
+    /**
+     * Full path to a MongoDB Crypt shared library to be used (instead of mongocryptd).
+     *
+     * This needs to be the path to the file itself, not a directory.
+     * It can be an absolute or relative path. If the path is relative and
+     * its first component is `$ORIGIN`, it will be replaced by the directory
+     * containing the mongodb-client-encryption native addon file. Otherwise,
+     * the path will be interpreted relative to the current working directory.
+     *
+     * Currently, loading different MongoDB Crypt shared library files from different
+     * MongoClients in the same process is not supported.
+     *
+     * If this option is provided and no MongoDB Crypt shared library could be loaded
+     * from the specified location, creating the MongoClient will fail.
+     *
+     * If this option is not provided and `cryptSharedLibRequired` is not specified,
+     * the AutoEncrypter will attempt to spawn and/or use mongocryptd according
+     * to the mongocryptd-specific `extraOptions` options.
+     *
+     * Specifying a path prevents mongocryptd from being used as a fallback.
+     *
+     * Requires the MongoDB Crypt shared library, available in MongoDB 6.0 or higher.
+     */
+    cryptSharedLibPath?: string;
+    /**
+     * If specified, never use mongocryptd and instead fail when the MongoDB Crypt
+     * shared library could not be loaded.
+     *
+     * This is always true when `cryptSharedLibPath` is specified.
+     *
+     * Requires the MongoDB Crypt shared library, available in MongoDB 6.0 or higher.
+     */
+    cryptSharedLibRequired?: boolean;
+    /**
+     * Search paths for a MongoDB Crypt shared library to be used (instead of mongocryptd)
+     * Only for driver testing!
+     * @internal
+     */
+    cryptSharedLibSearchPaths?: string[];
+  };
+  proxyOptions?: ProxyOptions;
+  /** The TLS options to use connecting to the KMS provider */
+  tlsOptions?: CSFLEKMSTlsOptions;
+}
+
+/**
+ * @public
+ *
+ * Extra options related to the mongocryptd process
+ * \* _Available in MongoDB 6.0 or higher._
+ */
+export type AutoEncryptionExtraOptions = NonNullable<AutoEncryptionOptions['extraOptions']>;
+
+/** @public */
+export const AutoEncryptionLoggerLevel = Object.freeze({
+  FatalError: 0,
+  Error: 1,
+  Warning: 2,
+  Info: 3,
+  Trace: 4
+} as const);
+
+/**
+ * @public
+ * The level of severity of the log message
+ *
+ * | Value | Level |
+ * |-------|-------|
+ * | 0 | Fatal Error |
+ * | 1 | Error |
+ * | 2 | Warning |
+ * | 3 | Info |
+ * | 4 | Trace |
+ */
+export type AutoEncryptionLoggerLevel =
+  (typeof AutoEncryptionLoggerLevel)[keyof typeof AutoEncryptionLoggerLevel];
+
+/**
+ * @internal An internal class to be used by the driver for auto encryption
+ * **NOTE**: Not meant to be instantiated directly, this is for internal use only.
+ */
+export class AutoEncrypter {
+  _client: MongoClient;
+  _bypassEncryption: boolean;
+  _keyVaultNamespace: string;
+  _keyVaultClient: MongoClient;
+  _metaDataClient: MongoClient;
+  _proxyOptions: ProxyOptions;
+  _tlsOptions: CSFLEKMSTlsOptions;
+  _kmsProviders: KMSProviders;
+  _bypassMongocryptdAndCryptShared: boolean;
+  _contextCounter: number;
+
+  _mongocryptdManager?: MongocryptdManager;
+  _mongocryptdClient?: MongoClient;
+
+  /** @internal */
+  _mongocrypt: MongoCrypt;
+
+  /**
+   * Used by devtools to enable decorating decryption results.
+   *
+   * When set and enabled, `decrypt` will automatically recursively
+   * traverse a decrypted document and if a field has been decrypted,
+   * it will mark it as decrypted.  Compass uses this to determine which
+   * fields were decrypted.
+   */
+  [kDecorateResult] = false;
+
+  /** @internal */
+  static getMongoCrypt(): MongoCryptConstructor {
+    const encryption = getMongoDBClientEncryption();
+    if ('kModuleError' in encryption) {
+      throw encryption.kModuleError;
+    }
+    return encryption.MongoCrypt;
+  }
+
+  /**
+   * Create an AutoEncrypter
+   *
+   * **Note**: Do not instantiate this class directly. Rather, supply the relevant options to a MongoClient
+   *
+   * **Note**: Supplying `options.schemaMap` provides more security than relying on JSON Schemas obtained from the server.
+   * It protects against a malicious server advertising a false JSON Schema, which could trick the client into sending unencrypted data that should be encrypted.
+   * Schemas supplied in the schemaMap only apply to configuring automatic encryption for Client-Side Field Level Encryption.
+   * Other validation rules in the JSON schema will not be enforced by the driver and will result in an error.
+   *
+   * @example <caption>Create an AutoEncrypter that makes use of mongocryptd</caption>
+   * ```ts
+   * // Enabling autoEncryption via a MongoClient using mongocryptd
+   * const { MongoClient } = require('mongodb');
+   * const client = new MongoClient(URL, {
+   *   autoEncryption: {
+   *     kmsProviders: {
+   *       aws: {
+   *         accessKeyId: AWS_ACCESS_KEY,
+   *         secretAccessKey: AWS_SECRET_KEY
+   *       }
+   *     }
+   *   }
+   * });
+   * ```
+   *
+   * await client.connect();
+   * // From here on, the client will be encrypting / decrypting automatically
+   * @example <caption>Create an AutoEncrypter that makes use of libmongocrypt's CSFLE shared library</caption>
+   * ```ts
+   * // Enabling autoEncryption via a MongoClient using CSFLE shared library
+   * const { MongoClient } = require('mongodb');
+   * const client = new MongoClient(URL, {
+   *   autoEncryption: {
+   *     kmsProviders: {
+   *       aws: {}
+   *     },
+   *     extraOptions: {
+   *       cryptSharedLibPath: '/path/to/local/crypt/shared/lib',
+   *       cryptSharedLibRequired: true
+   *     }
+   *   }
+   * });
+   * ```
+   *
+   * await client.connect();
+   * // From here on, the client will be encrypting / decrypting automatically
+   */
+  constructor(client: MongoClient, options: AutoEncryptionOptions) {
+    this._client = client;
+    this._bypassEncryption = options.bypassAutoEncryption === true;
+
+    this._keyVaultNamespace = options.keyVaultNamespace || 'admin.datakeys';
+    this._keyVaultClient = options.keyVaultClient || client;
+    this._metaDataClient = options.metadataClient || client;
+    this._proxyOptions = options.proxyOptions || {};
+    this._tlsOptions = options.tlsOptions || {};
+    this._kmsProviders = options.kmsProviders || {};
+
+    const mongoCryptOptions: MongoCryptOptions = {
+      cryptoCallbacks
+    };
+    if (options.schemaMap) {
+      mongoCryptOptions.schemaMap = Buffer.isBuffer(options.schemaMap)
+        ? options.schemaMap
+        : (serialize(options.schemaMap) as Buffer);
+    }
+
+    if (options.encryptedFieldsMap) {
+      mongoCryptOptions.encryptedFieldsMap = Buffer.isBuffer(options.encryptedFieldsMap)
+        ? options.encryptedFieldsMap
+        : (serialize(options.encryptedFieldsMap) as Buffer);
+    }
+
+    mongoCryptOptions.kmsProviders = !Buffer.isBuffer(this._kmsProviders)
+      ? (serialize(this._kmsProviders) as Buffer)
+      : this._kmsProviders;
+
+    if (options.options?.logger) {
+      mongoCryptOptions.logger = options.options.logger;
+    }
+
+    if (options.extraOptions && options.extraOptions.cryptSharedLibPath) {
+      mongoCryptOptions.cryptSharedLibPath = options.extraOptions.cryptSharedLibPath;
+    }
+
+    if (options.bypassQueryAnalysis) {
+      mongoCryptOptions.bypassQueryAnalysis = options.bypassQueryAnalysis;
+    }
+
+    this._bypassMongocryptdAndCryptShared = this._bypassEncryption || !!options.bypassQueryAnalysis;
+
+    if (options.extraOptions && options.extraOptions.cryptSharedLibSearchPaths) {
+      // Only for driver testing
+      mongoCryptOptions.cryptSharedLibSearchPaths = options.extraOptions.cryptSharedLibSearchPaths;
+    } else if (!this._bypassMongocryptdAndCryptShared) {
+      mongoCryptOptions.cryptSharedLibSearchPaths = ['$SYSTEM'];
+    }
+
+    const MongoCrypt = AutoEncrypter.getMongoCrypt();
+    this._mongocrypt = new MongoCrypt(mongoCryptOptions);
+    this._contextCounter = 0;
+
+    if (
+      options.extraOptions &&
+      options.extraOptions.cryptSharedLibRequired &&
+      !this.cryptSharedLibVersionInfo
+    ) {
+      throw new MongoCryptInvalidArgumentError(
+        '`cryptSharedLibRequired` set but no crypt_shared library loaded'
+      );
+    }
+
+    // Only instantiate mongocryptd manager/client once we know for sure
+    // that we are not using the CSFLE shared library.
+    if (!this._bypassMongocryptdAndCryptShared && !this.cryptSharedLibVersionInfo) {
+      this._mongocryptdManager = new MongocryptdManager(options.extraOptions);
+      const clientOptions: MongoClientOptions = {
+        serverSelectionTimeoutMS: 10000
+      };
+
+      if (
+        (options.extraOptions == null || typeof options.extraOptions.mongocryptdURI !== 'string') &&
+        !net.getDefaultAutoSelectFamily
+      ) {
+        // Only set family if autoSelectFamily options are not supported.
+        clientOptions.family = 4;
+      }
+
+      // eslint-disable-next-line @typescript-eslint/ban-ts-comment
+      // @ts-ignore: TS complains as this always returns true on versions where it is present.
+      if (net.getDefaultAutoSelectFamily) {
+        // AutoEncrypter is made inside of MongoClient constructor while options are being parsed,
+        // we do not have access to the options that are in progress.
+        // TODO(NODE-6449): AutoEncrypter does not use client options for autoSelectFamily
+        Object.assign(clientOptions, autoSelectSocketOptions(this._client.s?.options ?? {}));
+      }
+
+      this._mongocryptdClient = new MongoClient(this._mongocryptdManager.uri, clientOptions);
+    }
+  }
+
+  /**
+   * Initializes the auto encrypter by spawning a mongocryptd and connecting to it.
+   *
+   * This function is a no-op when bypassSpawn is set or the crypt shared library is used.
+   */
+  async init(): Promise<MongoClient | void> {
+    if (this._bypassMongocryptdAndCryptShared || this.cryptSharedLibVersionInfo) {
+      return;
+    }
+    if (!this._mongocryptdManager) {
+      throw new MongoRuntimeError(
+        'Reached impossible state: mongocryptdManager is undefined when neither bypassSpawn nor the shared lib are specified.'
+      );
+    }
+    if (!this._mongocryptdClient) {
+      throw new MongoRuntimeError(
+        'Reached impossible state: mongocryptdClient is undefined when neither bypassSpawn nor the shared lib are specified.'
+      );
+    }
+
+    if (!this._mongocryptdManager.bypassSpawn) {
+      await this._mongocryptdManager.spawn();
+    }
+
+    try {
+      const client = await this._mongocryptdClient.connect();
+      return client;
+    } catch (error) {
+      const { message } = error;
+      if (message && (message.match(/timed out after/) || message.match(/ENOTFOUND/))) {
+        throw new MongoRuntimeError(
+          'Unable to connect to `mongocryptd`, please make sure it is running or in your PATH for auto-spawn',
+          { cause: error }
+        );
+      }
+      throw error;
+    }
+  }
+
+  /**
+   * Cleans up the `_mongocryptdClient`, if present.
+   */
+  async teardown(force: boolean): Promise<void> {
+    await this._mongocryptdClient?.close(force);
+  }
+
+  /**
+   * Encrypt a command for a given namespace.
+   */
+  async encrypt(
+    ns: string,
+    cmd: Document,
+    options: CommandOptions = {}
+  ): Promise<Document | Uint8Array> {
+    if (this._bypassEncryption) {
+      // If `bypassAutoEncryption` has been specified, don't encrypt
+      return cmd;
+    }
+
+    const commandBuffer = Buffer.isBuffer(cmd) ? cmd : serialize(cmd, options);
+
+    const context = this._mongocrypt.makeEncryptionContext(
+      MongoDBCollectionNamespace.fromString(ns).db,
+      commandBuffer
+    );
+
+    context.id = this._contextCounter++;
+    context.ns = ns;
+    context.document = cmd;
+
+    const stateMachine = new StateMachine({
+      promoteValues: false,
+      promoteLongs: false,
+      proxyOptions: this._proxyOptions,
+      tlsOptions: this._tlsOptions,
+      socketOptions: autoSelectSocketOptions(this._client.s.options)
+    });
+
+    return deserialize(await stateMachine.execute(this, context, options.timeoutContext), {
+      promoteValues: false,
+      promoteLongs: false
+    });
+  }
+
+  /**
+   * Decrypt a command response
+   */
+  async decrypt(response: Uint8Array, options: CommandOptions = {}): Promise<Uint8Array> {
+    const context = this._mongocrypt.makeDecryptionContext(response);
+
+    context.id = this._contextCounter++;
+
+    const stateMachine = new StateMachine({
+      ...options,
+      proxyOptions: this._proxyOptions,
+      tlsOptions: this._tlsOptions,
+      socketOptions: autoSelectSocketOptions(this._client.s.options)
+    });
+
+    return await stateMachine.execute(
+      this,
+      context,
+      options.timeoutContext?.csotEnabled() ? options.timeoutContext : undefined
+    );
+  }
+
+  /**
+   * Ask the user for KMS credentials.
+   *
+   * This returns anything that looks like the kmsProviders original input
+   * option. It can be empty, and any provider specified here will override
+   * the original ones.
+   */
+  async askForKMSCredentials(): Promise<KMSProviders> {
+    return await refreshKMSCredentials(this._kmsProviders);
+  }
+
+  /**
+   * Return the current libmongocrypt's CSFLE shared library version
+   * as `{ version: bigint, versionStr: string }`, or `null` if no CSFLE
+   * shared library was loaded.
+   */
+  get cryptSharedLibVersionInfo(): { version: bigint; versionStr: string } | null {
+    return this._mongocrypt.cryptSharedLibVersionInfo;
+  }
+
+  static get libmongocryptVersion(): string {
+    return AutoEncrypter.getMongoCrypt().libmongocryptVersion;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/client-side-encryption/client_encryption.ts b/backend/node_modules/mongodb/src/client-side-encryption/client_encryption.ts
new file mode 100644
index 0000000..7482c51
--- /dev/null
+++ b/backend/node_modules/mongodb/src/client-side-encryption/client_encryption.ts
@@ -0,0 +1,1078 @@
+import type {
+  ExplicitEncryptionContextOptions,
+  MongoCrypt,
+  MongoCryptConstructor,
+  MongoCryptOptions
+} from 'mongodb-client-encryption';
+
+import {
+  type Binary,
+  deserialize,
+  type Document,
+  type Int32,
+  type Long,
+  serialize,
+  type UUID
+} from '../bson';
+import { type AnyBulkWriteOperation, type BulkWriteResult } from '../bulk/common';
+import { type ProxyOptions } from '../cmap/connection';
+import { type Collection } from '../collection';
+import { type FindCursor } from '../cursor/find_cursor';
+import { type Db } from '../db';
+import { getMongoDBClientEncryption } from '../deps';
+import { type MongoClient, type MongoClientOptions } from '../mongo_client';
+import { type Filter, type WithId } from '../mongo_types';
+import { type CreateCollectionOptions } from '../operations/create_collection';
+import { type DeleteResult } from '../operations/delete';
+import { type CSOTTimeoutContext, TimeoutContext } from '../timeout';
+import { MongoDBCollectionNamespace, resolveTimeoutOptions } from '../utils';
+import * as cryptoCallbacks from './crypto_callbacks';
+import {
+  MongoCryptCreateDataKeyError,
+  MongoCryptCreateEncryptedCollectionError,
+  MongoCryptInvalidArgumentError
+} from './errors';
+import {
+  type ClientEncryptionDataKeyProvider,
+  type KMSProviders,
+  refreshKMSCredentials
+} from './providers/index';
+import {
+  type ClientEncryptionSocketOptions,
+  type CSFLEKMSTlsOptions,
+  StateMachine
+} from './state_machine';
+
+/**
+ * @public
+ * The schema for a DataKey in the key vault collection.
+ */
+export interface DataKey {
+  _id: UUID;
+  version?: number;
+  keyAltNames?: string[];
+  keyMaterial: Binary;
+  creationDate: Date;
+  updateDate: Date;
+  status: number;
+  masterKey: Document;
+}
+
+/**
+ * @public
+ * The public interface for explicit in-use encryption
+ */
+export class ClientEncryption {
+  /** @internal */
+  _client: MongoClient;
+  /** @internal */
+  _keyVaultNamespace: string;
+  /** @internal */
+  _keyVaultClient: MongoClient;
+  /** @internal */
+  _proxyOptions: ProxyOptions;
+  /** @internal */
+  _tlsOptions: CSFLEKMSTlsOptions;
+  /** @internal */
+  _kmsProviders: KMSProviders;
+  /** @internal */
+  _timeoutMS?: number;
+
+  /** @internal */
+  _mongoCrypt: MongoCrypt;
+
+  /** @internal */
+  static getMongoCrypt(): MongoCryptConstructor {
+    const encryption = getMongoDBClientEncryption();
+    if ('kModuleError' in encryption) {
+      throw encryption.kModuleError;
+    }
+    return encryption.MongoCrypt;
+  }
+
+  /**
+   * Create a new encryption instance
+   *
+   * @example
+   * ```ts
+   * new ClientEncryption(mongoClient, {
+   *   keyVaultNamespace: 'client.encryption',
+   *   kmsProviders: {
+   *     local: {
+   *       key: masterKey // The master key used for encryption/decryption. A 96-byte long Buffer
+   *     }
+   *   }
+   * });
+   * ```
+   *
+   * @example
+   * ```ts
+   * new ClientEncryption(mongoClient, {
+   *   keyVaultNamespace: 'client.encryption',
+   *   kmsProviders: {
+   *     aws: {
+   *       accessKeyId: AWS_ACCESS_KEY,
+   *       secretAccessKey: AWS_SECRET_KEY
+   *     }
+   *   }
+   * });
+   * ```
+   */
+  constructor(client: MongoClient, options: ClientEncryptionOptions) {
+    this._client = client;
+    this._proxyOptions = options.proxyOptions ?? {};
+    this._tlsOptions = options.tlsOptions ?? {};
+    this._kmsProviders = options.kmsProviders || {};
+    const { timeoutMS } = resolveTimeoutOptions(client, options);
+    this._timeoutMS = timeoutMS;
+
+    if (options.keyVaultNamespace == null) {
+      throw new MongoCryptInvalidArgumentError('Missing required option `keyVaultNamespace`');
+    }
+
+    const mongoCryptOptions: MongoCryptOptions = {
+      ...options,
+      cryptoCallbacks,
+      kmsProviders: !Buffer.isBuffer(this._kmsProviders)
+        ? (serialize(this._kmsProviders) as Buffer)
+        : this._kmsProviders
+    };
+
+    this._keyVaultNamespace = options.keyVaultNamespace;
+    this._keyVaultClient = options.keyVaultClient || client;
+    const MongoCrypt = ClientEncryption.getMongoCrypt();
+    this._mongoCrypt = new MongoCrypt(mongoCryptOptions);
+  }
+
+  /**
+   * Creates a data key used for explicit encryption and inserts it into the key vault namespace
+   *
+   * @example
+   * ```ts
+   * // Using async/await to create a local key
+   * const dataKeyId = await clientEncryption.createDataKey('local');
+   * ```
+   *
+   * @example
+   * ```ts
+   * // Using async/await to create an aws key
+   * const dataKeyId = await clientEncryption.createDataKey('aws', {
+   *   masterKey: {
+   *     region: 'us-east-1',
+   *     key: 'xxxxxxxxxxxxxx' // CMK ARN here
+   *   }
+   * });
+   * ```
+   *
+   * @example
+   * ```ts
+   * // Using async/await to create an aws key with a keyAltName
+   * const dataKeyId = await clientEncryption.createDataKey('aws', {
+   *   masterKey: {
+   *     region: 'us-east-1',
+   *     key: 'xxxxxxxxxxxxxx' // CMK ARN here
+   *   },
+   *   keyAltNames: [ 'mySpecialKey' ]
+   * });
+   * ```
+   */
+  async createDataKey(
+    provider: ClientEncryptionDataKeyProvider,
+    options: ClientEncryptionCreateDataKeyProviderOptions = {}
+  ): Promise<UUID> {
+    if (options.keyAltNames && !Array.isArray(options.keyAltNames)) {
+      throw new MongoCryptInvalidArgumentError(
+        `Option "keyAltNames" must be an array of strings, but was of type ${typeof options.keyAltNames}.`
+      );
+    }
+
+    let keyAltNames = undefined;
+    if (options.keyAltNames && options.keyAltNames.length > 0) {
+      keyAltNames = options.keyAltNames.map((keyAltName, i) => {
+        if (typeof keyAltName !== 'string') {
+          throw new MongoCryptInvalidArgumentError(
+            `Option "keyAltNames" must be an array of strings, but item at index ${i} was of type ${typeof keyAltName}`
+          );
+        }
+
+        return serialize({ keyAltName });
+      });
+    }
+
+    let keyMaterial = undefined;
+    if (options.keyMaterial) {
+      keyMaterial = serialize({ keyMaterial: options.keyMaterial });
+    }
+
+    const dataKeyBson = serialize({
+      provider,
+      ...options.masterKey
+    });
+
+    const context = this._mongoCrypt.makeDataKeyContext(dataKeyBson, {
+      keyAltNames,
+      keyMaterial
+    });
+
+    const stateMachine = new StateMachine({
+      proxyOptions: this._proxyOptions,
+      tlsOptions: this._tlsOptions,
+      socketOptions: autoSelectSocketOptions(this._client.s.options)
+    });
+
+    const timeoutContext =
+      options?.timeoutContext ??
+      TimeoutContext.create(resolveTimeoutOptions(this._client, { timeoutMS: this._timeoutMS }));
+
+    const dataKey = deserialize(
+      await stateMachine.execute(this, context, timeoutContext)
+    ) as DataKey;
+
+    const { db: dbName, collection: collectionName } = MongoDBCollectionNamespace.fromString(
+      this._keyVaultNamespace
+    );
+
+    const { insertedId } = await this._keyVaultClient
+      .db(dbName)
+      .collection<DataKey>(collectionName)
+      .insertOne(dataKey, {
+        writeConcern: { w: 'majority' },
+        timeoutMS: timeoutContext?.csotEnabled()
+          ? timeoutContext?.getRemainingTimeMSOrThrow()
+          : undefined
+      });
+
+    return insertedId;
+  }
+
+  /**
+   * Searches the keyvault for any data keys matching the provided filter.  If there are matches, rewrapManyDataKey then attempts to re-wrap the data keys using the provided options.
+   *
+   * If no matches are found, then no bulk write is performed.
+   *
+   * @example
+   * ```ts
+   * // rewrapping all data data keys (using a filter that matches all documents)
+   * const filter = {};
+   *
+   * const result = await clientEncryption.rewrapManyDataKey(filter);
+   * if (result.bulkWriteResult != null) {
+   *  // keys were re-wrapped, results will be available in the bulkWrite object.
+   * }
+   * ```
+   *
+   * @example
+   * ```ts
+   * // attempting to rewrap all data keys with no matches
+   * const filter = { _id: new Binary() } // assume _id matches no documents in the database
+   * const result = await clientEncryption.rewrapManyDataKey(filter);
+   *
+   * if (result.bulkWriteResult == null) {
+   *  // no keys matched, `bulkWriteResult` does not exist on the result object
+   * }
+   * ```
+   */
+  async rewrapManyDataKey(
+    filter: Filter<DataKey>,
+    options: ClientEncryptionRewrapManyDataKeyProviderOptions
+  ): Promise<{ bulkWriteResult?: BulkWriteResult }> {
+    let keyEncryptionKeyBson = undefined;
+    if (options) {
+      const keyEncryptionKey = Object.assign({ provider: options.provider }, options.masterKey);
+      keyEncryptionKeyBson = serialize(keyEncryptionKey);
+    }
+    const filterBson = serialize(filter);
+    const context = this._mongoCrypt.makeRewrapManyDataKeyContext(filterBson, keyEncryptionKeyBson);
+    const stateMachine = new StateMachine({
+      proxyOptions: this._proxyOptions,
+      tlsOptions: this._tlsOptions,
+      socketOptions: autoSelectSocketOptions(this._client.s.options)
+    });
+
+    const timeoutContext = TimeoutContext.create(
+      resolveTimeoutOptions(this._client, { timeoutMS: this._timeoutMS })
+    );
+
+    const { v: dataKeys } = deserialize(await stateMachine.execute(this, context, timeoutContext));
+    if (dataKeys.length === 0) {
+      return {};
+    }
+
+    const { db: dbName, collection: collectionName } = MongoDBCollectionNamespace.fromString(
+      this._keyVaultNamespace
+    );
+
+    const replacements = dataKeys.map(
+      (key: DataKey): AnyBulkWriteOperation<DataKey> => ({
+        updateOne: {
+          filter: { _id: key._id },
+          update: {
+            $set: {
+              masterKey: key.masterKey,
+              keyMaterial: key.keyMaterial
+            },
+            $currentDate: {
+              updateDate: true
+            }
+          }
+        }
+      })
+    );
+
+    const result = await this._keyVaultClient
+      .db(dbName)
+      .collection<DataKey>(collectionName)
+      .bulkWrite(replacements, {
+        writeConcern: { w: 'majority' },
+        timeoutMS: timeoutContext.csotEnabled() ? timeoutContext?.remainingTimeMS : undefined
+      });
+
+    return { bulkWriteResult: result };
+  }
+
+  /**
+   * Deletes the key with the provided id from the keyvault, if it exists.
+   *
+   * @example
+   * ```ts
+   * // delete a key by _id
+   * const id = new Binary(); // id is a bson binary subtype 4 object
+   * const { deletedCount } = await clientEncryption.deleteKey(id);
+   *
+   * if (deletedCount != null && deletedCount > 0) {
+   *   // successful deletion
+   * }
+   * ```
+   *
+   */
+  async deleteKey(_id: Binary): Promise<DeleteResult> {
+    const { db: dbName, collection: collectionName } = MongoDBCollectionNamespace.fromString(
+      this._keyVaultNamespace
+    );
+
+    return await this._keyVaultClient
+      .db(dbName)
+      .collection<DataKey>(collectionName)
+      .deleteOne({ _id }, { writeConcern: { w: 'majority' }, timeoutMS: this._timeoutMS });
+  }
+
+  /**
+   * Finds all the keys currently stored in the keyvault.
+   *
+   * This method will not throw.
+   *
+   * @returns a FindCursor over all keys in the keyvault.
+   * @example
+   * ```ts
+   * // fetching all keys
+   * const keys = await clientEncryption.getKeys().toArray();
+   * ```
+   */
+  getKeys(): FindCursor<DataKey> {
+    const { db: dbName, collection: collectionName } = MongoDBCollectionNamespace.fromString(
+      this._keyVaultNamespace
+    );
+
+    return this._keyVaultClient
+      .db(dbName)
+      .collection<DataKey>(collectionName)
+      .find({}, { readConcern: { level: 'majority' }, timeoutMS: this._timeoutMS });
+  }
+
+  /**
+   * Finds a key in the keyvault with the specified _id.
+   *
+   * Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents
+   * match the id.  The promise rejects with an error if an error is thrown.
+   * @example
+   * ```ts
+   * // getting a key by id
+   * const id = new Binary(); // id is a bson binary subtype 4 object
+   * const key = await clientEncryption.getKey(id);
+   * if (!key) {
+   *  // key is null if there was no matching key
+   * }
+   * ```
+   */
+  async getKey(_id: Binary): Promise<DataKey | null> {
+    const { db: dbName, collection: collectionName } = MongoDBCollectionNamespace.fromString(
+      this._keyVaultNamespace
+    );
+
+    return await this._keyVaultClient
+      .db(dbName)
+      .collection<DataKey>(collectionName)
+      .findOne({ _id }, { readConcern: { level: 'majority' }, timeoutMS: this._timeoutMS });
+  }
+
+  /**
+   * Finds a key in the keyvault which has the specified keyAltName.
+   *
+   * @param keyAltName - a keyAltName to search for a key
+   * @returns Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents
+   * match the keyAltName.  The promise rejects with an error if an error is thrown.
+   * @example
+   * ```ts
+   * // get a key by alt name
+   * const keyAltName = 'keyAltName';
+   * const key = await clientEncryption.getKeyByAltName(keyAltName);
+   * if (!key) {
+   *  // key is null if there is no matching key
+   * }
+   * ```
+   */
+  async getKeyByAltName(keyAltName: string): Promise<WithId<DataKey> | null> {
+    const { db: dbName, collection: collectionName } = MongoDBCollectionNamespace.fromString(
+      this._keyVaultNamespace
+    );
+
+    return await this._keyVaultClient
+      .db(dbName)
+      .collection<DataKey>(collectionName)
+      .findOne(
+        { keyAltNames: keyAltName },
+        { readConcern: { level: 'majority' }, timeoutMS: this._timeoutMS }
+      );
+  }
+
+  /**
+   * Adds a keyAltName to a key identified by the provided _id.
+   *
+   * This method resolves to/returns the *old* key value (prior to adding the new altKeyName).
+   *
+   * @param _id - The id of the document to update.
+   * @param keyAltName - a keyAltName to search for a key
+   * @returns Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents
+   * match the id.  The promise rejects with an error if an error is thrown.
+   * @example
+   * ```ts
+   * // adding an keyAltName to a data key
+   * const id = new Binary();  // id is a bson binary subtype 4 object
+   * const keyAltName = 'keyAltName';
+   * const oldKey = await clientEncryption.addKeyAltName(id, keyAltName);
+   * if (!oldKey) {
+   *  // null is returned if there is no matching document with an id matching the supplied id
+   * }
+   * ```
+   */
+  async addKeyAltName(_id: Binary, keyAltName: string): Promise<WithId<DataKey> | null> {
+    const { db: dbName, collection: collectionName } = MongoDBCollectionNamespace.fromString(
+      this._keyVaultNamespace
+    );
+
+    const value = await this._keyVaultClient
+      .db(dbName)
+      .collection<DataKey>(collectionName)
+      .findOneAndUpdate(
+        { _id },
+        { $addToSet: { keyAltNames: keyAltName } },
+        { writeConcern: { w: 'majority' }, returnDocument: 'before', timeoutMS: this._timeoutMS }
+      );
+
+    return value;
+  }
+
+  /**
+   * Adds a keyAltName to a key identified by the provided _id.
+   *
+   * This method resolves to/returns the *old* key value (prior to removing the new altKeyName).
+   *
+   * If the removed keyAltName is the last keyAltName for that key, the `altKeyNames` property is unset from the document.
+   *
+   * @param _id - The id of the document to update.
+   * @param keyAltName - a keyAltName to search for a key
+   * @returns Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents
+   * match the id.  The promise rejects with an error if an error is thrown.
+   * @example
+   * ```ts
+   * // removing a key alt name from a data key
+   * const id = new Binary();  // id is a bson binary subtype 4 object
+   * const keyAltName = 'keyAltName';
+   * const oldKey = await clientEncryption.removeKeyAltName(id, keyAltName);
+   *
+   * if (!oldKey) {
+   *  // null is returned if there is no matching document with an id matching the supplied id
+   * }
+   * ```
+   */
+  async removeKeyAltName(_id: Binary, keyAltName: string): Promise<WithId<DataKey> | null> {
+    const { db: dbName, collection: collectionName } = MongoDBCollectionNamespace.fromString(
+      this._keyVaultNamespace
+    );
+
+    const pipeline = [
+      {
+        $set: {
+          keyAltNames: {
+            $cond: [
+              {
+                $eq: ['$keyAltNames', [keyAltName]]
+              },
+              '$$REMOVE',
+              {
+                $filter: {
+                  input: '$keyAltNames',
+                  cond: {
+                    $ne: ['$$this', keyAltName]
+                  }
+                }
+              }
+            ]
+          }
+        }
+      }
+    ];
+
+    const value = await this._keyVaultClient
+      .db(dbName)
+      .collection<DataKey>(collectionName)
+      .findOneAndUpdate({ _id }, pipeline, {
+        writeConcern: { w: 'majority' },
+        returnDocument: 'before',
+        timeoutMS: this._timeoutMS
+      });
+
+    return value;
+  }
+
+  /**
+   * A convenience method for creating an encrypted collection.
+   * This method will create data keys for any encryptedFields that do not have a `keyId` defined
+   * and then create a new collection with the full set of encryptedFields.
+   *
+   * @param db - A Node.js driver Db object with which to create the collection
+   * @param name - The name of the collection to be created
+   * @param options - Options for createDataKey and for createCollection
+   * @returns created collection and generated encryptedFields
+   * @throws MongoCryptCreateDataKeyError - If part way through the process a createDataKey invocation fails, an error will be rejected that has the partial `encryptedFields` that were created.
+   * @throws MongoCryptCreateEncryptedCollectionError - If creating the collection fails, an error will be rejected that has the entire `encryptedFields` that were created.
+   */
+  async createEncryptedCollection<TSchema extends Document = Document>(
+    db: Db,
+    name: string,
+    options: {
+      provider: ClientEncryptionDataKeyProvider;
+      createCollectionOptions: Omit<CreateCollectionOptions, 'encryptedFields'> & {
+        encryptedFields: Document;
+      };
+      masterKey?: AWSEncryptionKeyOptions | AzureEncryptionKeyOptions | GCPEncryptionKeyOptions;
+    }
+  ): Promise<{ collection: Collection<TSchema>; encryptedFields: Document }> {
+    const {
+      provider,
+      masterKey,
+      createCollectionOptions: {
+        encryptedFields: { ...encryptedFields },
+        ...createCollectionOptions
+      }
+    } = options;
+
+    const timeoutContext =
+      this._timeoutMS != null
+        ? TimeoutContext.create(resolveTimeoutOptions(this._client, { timeoutMS: this._timeoutMS }))
+        : undefined;
+
+    if (Array.isArray(encryptedFields.fields)) {
+      const createDataKeyPromises = encryptedFields.fields.map(async field =>
+        field == null || typeof field !== 'object' || field.keyId != null
+          ? field
+          : {
+              ...field,
+              keyId: await this.createDataKey(provider, {
+                masterKey,
+                // clone the timeoutContext
+                // in order to avoid sharing the same timeout for server selection and connection checkout across different concurrent operations
+                timeoutContext: timeoutContext?.csotEnabled() ? timeoutContext?.clone() : undefined
+              })
+            }
+      );
+      const createDataKeyResolutions = await Promise.allSettled(createDataKeyPromises);
+
+      encryptedFields.fields = createDataKeyResolutions.map((resolution, index) =>
+        resolution.status === 'fulfilled' ? resolution.value : encryptedFields.fields[index]
+      );
+
+      const rejection = createDataKeyResolutions.find(
+        (result): result is PromiseRejectedResult => result.status === 'rejected'
+      );
+      if (rejection != null) {
+        throw new MongoCryptCreateDataKeyError(encryptedFields, { cause: rejection.reason });
+      }
+    }
+
+    try {
+      const collection = await db.createCollection<TSchema>(name, {
+        ...createCollectionOptions,
+        encryptedFields,
+        timeoutMS: timeoutContext?.csotEnabled()
+          ? timeoutContext?.getRemainingTimeMSOrThrow()
+          : undefined
+      });
+      return { collection, encryptedFields };
+    } catch (cause) {
+      throw new MongoCryptCreateEncryptedCollectionError(encryptedFields, { cause });
+    }
+  }
+
+  /**
+   * Explicitly encrypt a provided value. Note that either `options.keyId` or `options.keyAltName` must
+   * be specified. Specifying both `options.keyId` and `options.keyAltName` is considered an error.
+   *
+   * @param value - The value that you wish to serialize. Must be of a type that can be serialized into BSON
+   * @param options -
+   * @returns a Promise that either resolves with the encrypted value, or rejects with an error.
+   *
+   * @example
+   * ```ts
+   * // Encryption with async/await api
+   * async function encryptMyData(value) {
+   *   const keyId = await clientEncryption.createDataKey('local');
+   *   return clientEncryption.encrypt(value, { keyId, algorithm: 'AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic' });
+   * }
+   * ```
+   *
+   * @example
+   * ```ts
+   * // Encryption using a keyAltName
+   * async function encryptMyData(value) {
+   *   await clientEncryption.createDataKey('local', { keyAltNames: 'mySpecialKey' });
+   *   return clientEncryption.encrypt(value, { keyAltName: 'mySpecialKey', algorithm: 'AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic' });
+   * }
+   * ```
+   */
+  async encrypt(value: unknown, options: ClientEncryptionEncryptOptions): Promise<Binary> {
+    return await this._encrypt(value, false, options);
+  }
+
+  /**
+   * Encrypts a Match Expression or Aggregate Expression to query a range index.
+   *
+   * Only supported when queryType is "range" and algorithm is "Range".
+   *
+   * @param expression - a BSON document of one of the following forms:
+   *  1. A Match Expression of this form:
+   *      `{$and: [{<field>: {$gt: <value1>}}, {<field>: {$lt: <value2> }}]}`
+   *  2. An Aggregate Expression of this form:
+   *      `{$and: [{$gt: [<fieldpath>, <value1>]}, {$lt: [<fieldpath>, <value2>]}]}`
+   *
+   *    `$gt` may also be `$gte`. `$lt` may also be `$lte`.
+   *
+   * @param options -
+   * @returns Returns a Promise that either resolves with the encrypted value or rejects with an error.
+   */
+  async encryptExpression(
+    expression: Document,
+    options: ClientEncryptionEncryptOptions
+  ): Promise<Binary> {
+    return await this._encrypt(expression, true, options);
+  }
+
+  /**
+   * Explicitly decrypt a provided encrypted value
+   *
+   * @param value - An encrypted value
+   * @returns a Promise that either resolves with the decrypted value, or rejects with an error
+   *
+   * @example
+   * ```ts
+   * // Decrypting value with async/await API
+   * async function decryptMyValue(value) {
+   *   return clientEncryption.decrypt(value);
+   * }
+   * ```
+   */
+  async decrypt<T = any>(value: Binary): Promise<T> {
+    const valueBuffer = serialize({ v: value });
+    const context = this._mongoCrypt.makeExplicitDecryptionContext(valueBuffer);
+
+    const stateMachine = new StateMachine({
+      proxyOptions: this._proxyOptions,
+      tlsOptions: this._tlsOptions,
+      socketOptions: autoSelectSocketOptions(this._client.s.options)
+    });
+
+    const timeoutContext =
+      this._timeoutMS != null
+        ? TimeoutContext.create(resolveTimeoutOptions(this._client, { timeoutMS: this._timeoutMS }))
+        : undefined;
+
+    const { v } = deserialize(await stateMachine.execute(this, context, timeoutContext));
+
+    return v;
+  }
+
+  /**
+   * @internal
+   * Ask the user for KMS credentials.
+   *
+   * This returns anything that looks like the kmsProviders original input
+   * option. It can be empty, and any provider specified here will override
+   * the original ones.
+   */
+  async askForKMSCredentials(): Promise<KMSProviders> {
+    return await refreshKMSCredentials(this._kmsProviders);
+  }
+
+  static get libmongocryptVersion() {
+    return ClientEncryption.getMongoCrypt().libmongocryptVersion;
+  }
+
+  /**
+   * @internal
+   * A helper that perform explicit encryption of values and expressions.
+   * Explicitly encrypt a provided value. Note that either `options.keyId` or `options.keyAltName` must
+   * be specified. Specifying both `options.keyId` and `options.keyAltName` is considered an error.
+   *
+   * @param value - The value that you wish to encrypt. Must be of a type that can be serialized into BSON
+   * @param expressionMode - a boolean that indicates whether or not to encrypt the value as an expression
+   * @param options - options to pass to encrypt
+   * @returns the raw result of the call to stateMachine.execute().  When expressionMode is set to true, the return
+   *          value will be a bson document.  When false, the value will be a BSON Binary.
+   *
+   */
+  private async _encrypt(
+    value: unknown,
+    expressionMode: boolean,
+    options: ClientEncryptionEncryptOptions
+  ): Promise<Binary> {
+    const { algorithm, keyId, keyAltName, contentionFactor, queryType, rangeOptions } = options;
+    const contextOptions: ExplicitEncryptionContextOptions = {
+      expressionMode,
+      algorithm
+    };
+    if (keyId) {
+      contextOptions.keyId = keyId.buffer;
+    }
+    if (keyAltName) {
+      if (keyId) {
+        throw new MongoCryptInvalidArgumentError(
+          `"options" cannot contain both "keyId" and "keyAltName"`
+        );
+      }
+      if (typeof keyAltName !== 'string') {
+        throw new MongoCryptInvalidArgumentError(
+          `"options.keyAltName" must be of type string, but was of type ${typeof keyAltName}`
+        );
+      }
+
+      contextOptions.keyAltName = serialize({ keyAltName });
+    }
+    if (typeof contentionFactor === 'number' || typeof contentionFactor === 'bigint') {
+      contextOptions.contentionFactor = contentionFactor;
+    }
+    if (typeof queryType === 'string') {
+      contextOptions.queryType = queryType;
+    }
+
+    if (typeof rangeOptions === 'object') {
+      contextOptions.rangeOptions = serialize(rangeOptions);
+    }
+
+    const valueBuffer = serialize({ v: value });
+    const stateMachine = new StateMachine({
+      proxyOptions: this._proxyOptions,
+      tlsOptions: this._tlsOptions,
+      socketOptions: autoSelectSocketOptions(this._client.s.options)
+    });
+    const context = this._mongoCrypt.makeExplicitEncryptionContext(valueBuffer, contextOptions);
+
+    const timeoutContext =
+      this._timeoutMS != null
+        ? TimeoutContext.create(resolveTimeoutOptions(this._client, { timeoutMS: this._timeoutMS }))
+        : undefined;
+    const { v } = deserialize(await stateMachine.execute(this, context, timeoutContext));
+    return v;
+  }
+}
+
+/**
+ * @public
+ * Options to provide when encrypting data.
+ */
+export interface ClientEncryptionEncryptOptions {
+  /**
+   * The algorithm to use for encryption.
+   */
+  algorithm:
+    | 'AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic'
+    | 'AEAD_AES_256_CBC_HMAC_SHA_512-Random'
+    | 'Indexed'
+    | 'Unindexed'
+    | 'Range';
+
+  /**
+   * The id of the Binary dataKey to use for encryption
+   */
+  keyId?: Binary;
+
+  /**
+   * A unique string name corresponding to an already existing dataKey.
+   */
+  keyAltName?: string;
+
+  /** The contention factor. */
+  contentionFactor?: bigint | number;
+
+  /**
+   * The query type.
+   */
+  queryType?: 'equality' | 'range';
+
+  /** The index options for a Queryable Encryption field supporting "range" queries.*/
+  rangeOptions?: RangeOptions;
+}
+
+/**
+ * @public
+ * @experimental
+ */
+export interface ClientEncryptionRewrapManyDataKeyProviderOptions {
+  provider: ClientEncryptionDataKeyProvider;
+  masterKey?:
+    | AWSEncryptionKeyOptions
+    | AzureEncryptionKeyOptions
+    | GCPEncryptionKeyOptions
+    | KMIPEncryptionKeyOptions
+    | undefined;
+}
+
+/**
+ * @public
+ * Additional settings to provide when creating a new `ClientEncryption` instance.
+ */
+export interface ClientEncryptionOptions {
+  /**
+   * The namespace of the key vault, used to store encryption keys
+   */
+  keyVaultNamespace: string;
+
+  /**
+   * A MongoClient used to fetch keys from a key vault. Defaults to client.
+   */
+  keyVaultClient?: MongoClient | undefined;
+
+  /**
+   * Options for specific KMS providers to use
+   */
+  kmsProviders?: KMSProviders;
+
+  /**
+   * Options for specifying a Socks5 proxy to use for connecting to the KMS.
+   */
+  proxyOptions?: ProxyOptions;
+
+  /**
+   * TLS options for kms providers to use.
+   */
+  tlsOptions?: CSFLEKMSTlsOptions;
+
+  /**
+   * @experimental
+   *
+   * The timeout setting to be used for all the operations on ClientEncryption.
+   *
+   * When provided, `timeoutMS` is used as the timeout for each operation executed on
+   * the ClientEncryption object.  For example:
+   *
+   * ```typescript
+   * const clientEncryption = new ClientEncryption(client, {
+   *  timeoutMS: 1_000
+   *  kmsProviders: { local: { key: '<KEY>' } }
+   * });
+   *
+   * // `1_000` is used as the timeout for createDataKey call
+   * await clientEncryption.createDataKey('local');
+   * ```
+   *
+   * If `timeoutMS` is configured on the provided client, the client's `timeoutMS` value
+   * will be used unless `timeoutMS` is also provided as a client encryption option.
+   *
+   * ```typescript
+   * const client = new MongoClient('<uri>', { timeoutMS: 2_000 });
+   *
+   * // timeoutMS is set to 1_000 on clientEncryption
+   * const clientEncryption = new ClientEncryption(client, {
+   *  timeoutMS: 1_000
+   *  kmsProviders: { local: { key: '<KEY>' } }
+   * });
+   * ```
+   */
+  timeoutMS?: number;
+}
+
+/**
+ * @public
+ * Configuration options for making an AWS encryption key
+ */
+export interface AWSEncryptionKeyOptions {
+  /**
+   * The AWS region of the KMS
+   */
+  region: string;
+
+  /**
+   * The Amazon Resource Name (ARN) to the AWS customer master key (CMK)
+   */
+  key: string;
+
+  /**
+   * An alternate host to send KMS requests to. May include port number.
+   */
+  endpoint?: string | undefined;
+}
+
+/**
+ * @public
+ * Configuration options for making an AWS encryption key
+ */
+export interface GCPEncryptionKeyOptions {
+  /**
+   * GCP project ID
+   */
+  projectId: string;
+
+  /**
+   * Location name (e.g. "global")
+   */
+  location: string;
+
+  /**
+   * Key ring name
+   */
+  keyRing: string;
+
+  /**
+   * Key name
+   */
+  keyName: string;
+
+  /**
+   * Key version
+   */
+  keyVersion?: string | undefined;
+
+  /**
+   * KMS URL, defaults to `https://www.googleapis.com/auth/cloudkms`
+   */
+  endpoint?: string | undefined;
+}
+
+/**
+ * @public
+ * Configuration options for making an Azure encryption key
+ */
+export interface AzureEncryptionKeyOptions {
+  /**
+   * Key name
+   */
+  keyName: string;
+
+  /**
+   * Key vault URL, typically `<name>.vault.azure.net`
+   */
+  keyVaultEndpoint: string;
+
+  /**
+   * Key version
+   */
+  keyVersion?: string | undefined;
+}
+
+/**
+ * @public
+ * Configuration options for making a KMIP encryption key
+ */
+export interface KMIPEncryptionKeyOptions {
+  /**
+   * keyId is the KMIP Unique Identifier to a 96 byte KMIP Secret Data managed object.
+   *
+   * If keyId is omitted, a random 96 byte KMIP Secret Data managed object will be created.
+   */
+  keyId?: string;
+
+  /**
+   * Host with optional port.
+   */
+  endpoint?: string;
+
+  /**
+   * If true, this key should be decrypted by the KMIP server.
+   *
+   * Requires `mongodb-client-encryption>=6.0.1`.
+   */
+  delegated?: boolean;
+}
+
+/**
+ * @public
+ * Options to provide when creating a new data key.
+ */
+export interface ClientEncryptionCreateDataKeyProviderOptions {
+  /**
+   * Identifies a new KMS-specific key used to encrypt the new data key
+   */
+  masterKey?:
+    | AWSEncryptionKeyOptions
+    | AzureEncryptionKeyOptions
+    | GCPEncryptionKeyOptions
+    | KMIPEncryptionKeyOptions
+    | undefined;
+
+  /**
+   * An optional list of string alternate names used to reference a key.
+   * If a key is created with alternate names, then encryption may refer to the key by the unique alternate name instead of by _id.
+   */
+  keyAltNames?: string[] | undefined;
+
+  /** @experimental */
+  keyMaterial?: Buffer | Binary;
+
+  /** @internal */
+  timeoutContext?: CSOTTimeoutContext;
+}
+
+/**
+ * @public
+ * @experimental
+ */
+export interface ClientEncryptionRewrapManyDataKeyResult {
+  /** The result of rewrapping data keys. If unset, no keys matched the filter. */
+  bulkWriteResult?: BulkWriteResult;
+}
+
+/**
+ * @public
+ * RangeOptions specifies index options for a Queryable Encryption field supporting "range" queries.
+ * min, max, sparsity, trimFactor and range must match the values set in the encryptedFields of the destination collection.
+ * For double and decimal128, min/max/precision must all be set, or all be unset.
+ */
+export interface RangeOptions {
+  /** min is the minimum value for the encrypted index. Required if precision is set. */
+  min?: any;
+  /** max is the minimum value for the encrypted index. Required if precision is set. */
+  max?: any;
+  /** sparsity may be used to tune performance. must be non-negative. When omitted, a default value is used. */
+  sparsity?: Long | bigint;
+  /** trimFactor may be used to tune performance. must be non-negative. When omitted, a default value is used. */
+  trimFactor?: Int32 | number;
+  /* precision determines the number of significant digits after the decimal point. May only be set for double or decimal128. */
+  precision?: number;
+}
+
+/**
+ * Get the socket options from the client.
+ * @param baseOptions - The mongo client options.
+ * @returns ClientEncryptionSocketOptions
+ */
+export function autoSelectSocketOptions(
+  baseOptions: MongoClientOptions
+): ClientEncryptionSocketOptions {
+  const options: ClientEncryptionSocketOptions = { autoSelectFamily: true };
+  if ('autoSelectFamily' in baseOptions) {
+    options.autoSelectFamily = baseOptions.autoSelectFamily;
+  }
+  if ('autoSelectFamilyAttemptTimeout' in baseOptions) {
+    options.autoSelectFamilyAttemptTimeout = baseOptions.autoSelectFamilyAttemptTimeout;
+  }
+  return options;
+}
diff --git a/backend/node_modules/mongodb/src/client-side-encryption/crypto_callbacks.ts b/backend/node_modules/mongodb/src/client-side-encryption/crypto_callbacks.ts
new file mode 100644
index 0000000..1e2f1f7
--- /dev/null
+++ b/backend/node_modules/mongodb/src/client-side-encryption/crypto_callbacks.ts
@@ -0,0 +1,87 @@
+import * as crypto from 'crypto';
+
+type AES256Callback = (key: Buffer, iv: Buffer, input: Buffer, output: Buffer) => number | Error;
+
+export function makeAES256Hook(
+  method: 'createCipheriv' | 'createDecipheriv',
+  mode: 'aes-256-cbc' | 'aes-256-ctr'
+): AES256Callback {
+  return function (key: Buffer, iv: Buffer, input: Buffer, output: Buffer): number | Error {
+    let result;
+
+    try {
+      const cipher = crypto[method](mode, key, iv);
+      cipher.setAutoPadding(false);
+      result = cipher.update(input);
+      const final = cipher.final();
+      if (final.length > 0) {
+        result = Buffer.concat([result, final]);
+      }
+    } catch (e) {
+      return e;
+    }
+
+    result.copy(output);
+    return result.length;
+  };
+}
+
+export function randomHook(buffer: Buffer, count: number): number | Error {
+  try {
+    crypto.randomFillSync(buffer, 0, count);
+  } catch (e) {
+    return e;
+  }
+  return count;
+}
+
+export function sha256Hook(input: Buffer, output: Buffer): number | Error {
+  let result;
+  try {
+    result = crypto.createHash('sha256').update(input).digest();
+  } catch (e) {
+    return e;
+  }
+
+  result.copy(output);
+  return result.length;
+}
+
+type HMACHook = (key: Buffer, input: Buffer, output: Buffer) => number | Error;
+export function makeHmacHook(algorithm: 'sha512' | 'sha256'): HMACHook {
+  return (key: Buffer, input: Buffer, output: Buffer): number | Error => {
+    let result;
+    try {
+      result = crypto.createHmac(algorithm, key).update(input).digest();
+    } catch (e) {
+      return e;
+    }
+
+    result.copy(output);
+    return result.length;
+  };
+}
+
+export function signRsaSha256Hook(key: Buffer, input: Buffer, output: Buffer): number | Error {
+  let result;
+  try {
+    const signer = crypto.createSign('sha256WithRSAEncryption');
+    const privateKey = Buffer.from(
+      `-----BEGIN PRIVATE KEY-----\n${key.toString('base64')}\n-----END PRIVATE KEY-----\n`
+    );
+
+    result = signer.update(input).end().sign(privateKey);
+  } catch (e) {
+    return e;
+  }
+
+  result.copy(output);
+  return result.length;
+}
+
+export const aes256CbcEncryptHook = makeAES256Hook('createCipheriv', 'aes-256-cbc');
+export const aes256CbcDecryptHook = makeAES256Hook('createDecipheriv', 'aes-256-cbc');
+export const aes256CtrEncryptHook = makeAES256Hook('createCipheriv', 'aes-256-ctr');
+export const aes256CtrDecryptHook = makeAES256Hook('createDecipheriv', 'aes-256-ctr');
+export const hmacSha512Hook = makeHmacHook('sha512');
+export const hmacSha256Hook = makeHmacHook('sha256');
diff --git a/backend/node_modules/mongodb/src/client-side-encryption/errors.ts b/backend/node_modules/mongodb/src/client-side-encryption/errors.ts
new file mode 100644
index 0000000..7ab7074
--- /dev/null
+++ b/backend/node_modules/mongodb/src/client-side-encryption/errors.ts
@@ -0,0 +1,141 @@
+import { type Document } from '../bson';
+import { MongoError } from '../error';
+
+/**
+ * @public
+ * An error indicating that something went wrong specifically with MongoDB Client Encryption
+ */
+export class MongoCryptError extends MongoError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string, options: { cause?: Error } = {}) {
+    super(message, options);
+  }
+
+  override get name() {
+    return 'MongoCryptError';
+  }
+}
+
+/**
+ * @public
+ *
+ * An error indicating an invalid argument was provided to an encryption API.
+ */
+export class MongoCryptInvalidArgumentError extends MongoCryptError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string) {
+    super(message);
+  }
+
+  override get name() {
+    return 'MongoCryptInvalidArgumentError';
+  }
+}
+/**
+ * @public
+ * An error indicating that `ClientEncryption.createEncryptedCollection()` failed to create data keys
+ */
+export class MongoCryptCreateDataKeyError extends MongoCryptError {
+  encryptedFields: Document;
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(encryptedFields: Document, { cause }: { cause: Error }) {
+    super(`Unable to complete creating data keys: ${cause.message}`, { cause });
+    this.encryptedFields = encryptedFields;
+  }
+
+  override get name() {
+    return 'MongoCryptCreateDataKeyError';
+  }
+}
+
+/**
+ * @public
+ * An error indicating that `ClientEncryption.createEncryptedCollection()` failed to create a collection
+ */
+export class MongoCryptCreateEncryptedCollectionError extends MongoCryptError {
+  encryptedFields: Document;
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(encryptedFields: Document, { cause }: { cause: Error }) {
+    super(`Unable to create collection: ${cause.message}`, { cause });
+    this.encryptedFields = encryptedFields;
+  }
+
+  override get name() {
+    return 'MongoCryptCreateEncryptedCollectionError';
+  }
+}
+
+/**
+ * @public
+ * An error indicating that mongodb-client-encryption failed to auto-refresh Azure KMS credentials.
+ */
+export class MongoCryptAzureKMSRequestError extends MongoCryptError {
+  /** The body of the http response that failed, if present. */
+  body?: Document;
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string, body?: Document) {
+    super(message);
+    this.body = body;
+  }
+
+  override get name(): string {
+    return 'MongoCryptAzureKMSRequestError';
+  }
+}
+
+/** @public */
+export class MongoCryptKMSRequestNetworkTimeoutError extends MongoCryptError {
+  override get name(): string {
+    return 'MongoCryptKMSRequestNetworkTimeoutError';
+  }
+}
diff --git a/backend/node_modules/mongodb/src/client-side-encryption/mongocryptd_manager.ts b/backend/node_modules/mongodb/src/client-side-encryption/mongocryptd_manager.ts
new file mode 100644
index 0000000..24c0abd
--- /dev/null
+++ b/backend/node_modules/mongodb/src/client-side-encryption/mongocryptd_manager.ts
@@ -0,0 +1,100 @@
+import type { ChildProcess } from 'child_process';
+
+import { MongoNetworkTimeoutError } from '../error';
+import { type AutoEncryptionExtraOptions } from './auto_encrypter';
+
+/**
+ * @internal
+ * An internal class that handles spawning a mongocryptd.
+ */
+export class MongocryptdManager {
+  static DEFAULT_MONGOCRYPTD_URI = 'mongodb://localhost:27020';
+
+  uri: string;
+  bypassSpawn: boolean;
+  spawnPath = '';
+  spawnArgs: Array<string> = [];
+  _child?: ChildProcess;
+
+  constructor(extraOptions: AutoEncryptionExtraOptions = {}) {
+    this.uri =
+      typeof extraOptions.mongocryptdURI === 'string' && extraOptions.mongocryptdURI.length > 0
+        ? extraOptions.mongocryptdURI
+        : MongocryptdManager.DEFAULT_MONGOCRYPTD_URI;
+
+    this.bypassSpawn = !!extraOptions.mongocryptdBypassSpawn;
+
+    if (Object.hasOwn(extraOptions, 'mongocryptdSpawnPath') && extraOptions.mongocryptdSpawnPath) {
+      this.spawnPath = extraOptions.mongocryptdSpawnPath;
+    }
+    if (
+      Object.hasOwn(extraOptions, 'mongocryptdSpawnArgs') &&
+      Array.isArray(extraOptions.mongocryptdSpawnArgs)
+    ) {
+      this.spawnArgs = this.spawnArgs.concat(extraOptions.mongocryptdSpawnArgs);
+    }
+    if (
+      this.spawnArgs
+        .filter(arg => typeof arg === 'string')
+        .every(arg => arg.indexOf('--idleShutdownTimeoutSecs') < 0)
+    ) {
+      this.spawnArgs.push('--idleShutdownTimeoutSecs', '60');
+    }
+  }
+
+  /**
+   * Will check to see if a mongocryptd is up. If it is not up, it will attempt
+   * to spawn a mongocryptd in a detached process, and then wait for it to be up.
+   */
+  async spawn(): Promise<void> {
+    const cmdName = this.spawnPath || 'mongocryptd';
+
+    // eslint-disable-next-line @typescript-eslint/no-require-imports
+    const { spawn } = require('child_process') as typeof import('child_process');
+
+    // Spawned with stdio: ignore and detached: true
+    // to ensure child can outlive parent.
+    this._child = spawn(cmdName, this.spawnArgs, {
+      stdio: 'ignore',
+      detached: true
+    });
+
+    this._child.on('error', () => {
+      // From the FLE spec:
+      // "The stdout and stderr of the spawned process MUST not be exposed in the driver
+      // (e.g. redirect to /dev/null). Users can pass the argument --logpath to
+      // extraOptions.mongocryptdSpawnArgs if they need to inspect mongocryptd logs.
+      // If spawning is necessary, the driver MUST spawn mongocryptd whenever server
+      // selection on the MongoClient to mongocryptd fails. If the MongoClient fails to
+      // connect after spawning, the server selection error is propagated to the user."
+      // The AutoEncrypter and MongoCryptdManager should work together to spawn
+      // mongocryptd whenever necessary.  Additionally, the `mongocryptd` intentionally
+      // shuts down after 60s and gets respawned when necessary.  We rely on server
+      // selection timeouts when connecting to the `mongocryptd` to inform users that something
+      // has been configured incorrectly.  For those reasons, we suppress stderr from
+      // the `mongocryptd` process and immediately unref the process.
+    });
+
+    // unref child to remove handle from event loop
+    this._child.unref();
+  }
+
+  /**
+   * @returns the result of `fn` or rejects with an error.
+   */
+  async withRespawn<T>(fn: () => Promise<T>): ReturnType<typeof fn> {
+    try {
+      const result = await fn();
+      return result;
+    } catch (err) {
+      // If we are not bypassing spawning, then we should retry once on a MongoTimeoutError (server selection error)
+      const shouldSpawn = err instanceof MongoNetworkTimeoutError && !this.bypassSpawn;
+      if (!shouldSpawn) {
+        throw err;
+      }
+    }
+    await this.spawn();
+    const result = await fn();
+    return result;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/client-side-encryption/providers/aws.ts b/backend/node_modules/mongodb/src/client-side-encryption/providers/aws.ts
new file mode 100644
index 0000000..240e560
--- /dev/null
+++ b/backend/node_modules/mongodb/src/client-side-encryption/providers/aws.ts
@@ -0,0 +1,27 @@
+import { AWSSDKCredentialProvider } from '../../cmap/auth/aws_temporary_credentials';
+import { type KMSProviders } from '.';
+
+/**
+ * @internal
+ */
+export async function loadAWSCredentials(kmsProviders: KMSProviders): Promise<KMSProviders> {
+  const credentialProvider = new AWSSDKCredentialProvider();
+
+  // We shouldn't ever receive a response from the AWS SDK that doesn't have a `SecretAccessKey`
+  // or `AccessKeyId`.  However, TS says these fields are optional.  We provide empty strings
+  // and let libmongocrypt error if we're unable to fetch the required keys.
+  const {
+    SecretAccessKey = '',
+    AccessKeyId = '',
+    Token
+  } = await credentialProvider.getCredentials();
+  const aws: NonNullable<KMSProviders['aws']> = {
+    secretAccessKey: SecretAccessKey,
+    accessKeyId: AccessKeyId
+  };
+  // the AWS session token is only required for temporary credentials so only attach it to the
+  // result if it's present in the response from the aws sdk
+  Token != null && (aws.sessionToken = Token);
+
+  return { ...kmsProviders, aws };
+}
diff --git a/backend/node_modules/mongodb/src/client-side-encryption/providers/azure.ts b/backend/node_modules/mongodb/src/client-side-encryption/providers/azure.ts
new file mode 100644
index 0000000..97a2665
--- /dev/null
+++ b/backend/node_modules/mongodb/src/client-side-encryption/providers/azure.ts
@@ -0,0 +1,181 @@
+import { type Document } from '../../bson';
+import { MongoNetworkTimeoutError } from '../../error';
+import { get } from '../../utils';
+import { MongoCryptAzureKMSRequestError } from '../errors';
+import { type KMSProviders } from './index';
+
+const MINIMUM_TOKEN_REFRESH_IN_MILLISECONDS = 6000;
+/** Base URL for getting Azure tokens. */
+export const AZURE_BASE_URL = 'http://169.254.169.254/metadata/identity/oauth2/token?';
+
+/**
+ * The access token that libmongocrypt expects for Azure kms.
+ */
+interface AccessToken {
+  accessToken: string;
+}
+
+/**
+ * The response from the azure idms endpoint, including the `expiresOnTimestamp`.
+ * `expiresOnTimestamp` is needed for caching.
+ */
+interface AzureTokenCacheEntry extends AccessToken {
+  accessToken: string;
+  expiresOnTimestamp: number;
+}
+
+/**
+ * @internal
+ */
+export class AzureCredentialCache {
+  cachedToken: AzureTokenCacheEntry | null = null;
+
+  async getToken(): Promise<AccessToken> {
+    if (this.cachedToken == null || this.needsRefresh(this.cachedToken)) {
+      this.cachedToken = await this._getToken();
+    }
+
+    return { accessToken: this.cachedToken.accessToken };
+  }
+
+  needsRefresh(token: AzureTokenCacheEntry): boolean {
+    const timeUntilExpirationMS = token.expiresOnTimestamp - Date.now();
+    return timeUntilExpirationMS <= MINIMUM_TOKEN_REFRESH_IN_MILLISECONDS;
+  }
+
+  /**
+   * exposed for testing
+   */
+  resetCache() {
+    this.cachedToken = null;
+  }
+
+  /**
+   * exposed for testing
+   */
+  _getToken(): Promise<AzureTokenCacheEntry> {
+    return fetchAzureKMSToken();
+  }
+}
+
+/** @internal */
+export const tokenCache = new AzureCredentialCache();
+
+/** @internal */
+async function parseResponse(response: {
+  body: string;
+  status?: number;
+}): Promise<AzureTokenCacheEntry> {
+  const { status, body: rawBody } = response;
+
+  const body: { expires_in?: number; access_token?: string } = (() => {
+    try {
+      return JSON.parse(rawBody);
+    } catch {
+      throw new MongoCryptAzureKMSRequestError('Malformed JSON body in GET request.');
+    }
+  })();
+
+  if (status !== 200) {
+    throw new MongoCryptAzureKMSRequestError('Unable to complete request.', body);
+  }
+
+  if (!body.access_token) {
+    throw new MongoCryptAzureKMSRequestError(
+      'Malformed response body - missing field `access_token`.'
+    );
+  }
+
+  if (!body.expires_in) {
+    throw new MongoCryptAzureKMSRequestError(
+      'Malformed response body - missing field `expires_in`.'
+    );
+  }
+
+  const expiresInMS = Number(body.expires_in) * 1000;
+  if (Number.isNaN(expiresInMS)) {
+    throw new MongoCryptAzureKMSRequestError(
+      'Malformed response body - unable to parse int from `expires_in` field.'
+    );
+  }
+
+  return {
+    accessToken: body.access_token,
+    expiresOnTimestamp: Date.now() + expiresInMS
+  };
+}
+
+/**
+ * @internal
+ *
+ * exposed for CSFLE
+ * [prose test 18](https://github.com/mongodb/specifications/tree/master/source/client-side-encryption/tests#azure-imds-credentials)
+ */
+export interface AzureKMSRequestOptions {
+  headers?: Document;
+  url?: URL | string;
+}
+
+/**
+ * @internal
+ * Get the Azure endpoint URL.
+ */
+export function addAzureParams(url: URL, resource: string, username?: string): URL {
+  url.searchParams.append('api-version', '2018-02-01');
+  url.searchParams.append('resource', resource);
+  if (username) {
+    url.searchParams.append('client_id', username);
+  }
+  return url;
+}
+
+/**
+ * @internal
+ *
+ * parses any options provided by prose tests to `fetchAzureKMSToken` and merges them with
+ * the default values for headers and the request url.
+ */
+export function prepareRequest(options: AzureKMSRequestOptions): {
+  headers: Document;
+  url: URL;
+} {
+  const url = new URL(options.url?.toString() ?? AZURE_BASE_URL);
+  addAzureParams(url, 'https://vault.azure.net');
+  const headers = { ...options.headers, 'Content-Type': 'application/json', Metadata: true };
+  return { headers, url };
+}
+
+/**
+ * @internal
+ *
+ * `AzureKMSRequestOptions` allows prose tests to modify the http request sent to the idms
+ * servers.  This is required to simulate different server conditions.  No options are expected to
+ * be set outside of tests.
+ *
+ * exposed for CSFLE
+ * [prose test 18](https://github.com/mongodb/specifications/tree/master/source/client-side-encryption/tests#azure-imds-credentials)
+ */
+export async function fetchAzureKMSToken(
+  options: AzureKMSRequestOptions = {}
+): Promise<AzureTokenCacheEntry> {
+  const { headers, url } = prepareRequest(options);
+  try {
+    const response = await get(url, { headers });
+    return await parseResponse(response);
+  } catch (error) {
+    if (error instanceof MongoNetworkTimeoutError) {
+      throw new MongoCryptAzureKMSRequestError(`[Azure KMS] ${error.message}`);
+    }
+    throw error;
+  }
+}
+
+/**
+ * @internal
+ *
+ * @throws Will reject with a `MongoCryptError` if the http request fails or the http response is malformed.
+ */
+export async function loadAzureCredentials(kmsProviders: KMSProviders): Promise<KMSProviders> {
+  const azure = await tokenCache.getToken();
+  return { ...kmsProviders, azure };
+}
diff --git a/backend/node_modules/mongodb/src/client-side-encryption/providers/gcp.ts b/backend/node_modules/mongodb/src/client-side-encryption/providers/gcp.ts
new file mode 100644
index 0000000..1415d21
--- /dev/null
+++ b/backend/node_modules/mongodb/src/client-side-encryption/providers/gcp.ts
@@ -0,0 +1,16 @@
+import { getGcpMetadata } from '../../deps';
+import { type KMSProviders } from '.';
+
+/** @internal */
+export async function loadGCPCredentials(kmsProviders: KMSProviders): Promise<KMSProviders> {
+  const gcpMetadata = getGcpMetadata();
+
+  if ('kModuleError' in gcpMetadata) {
+    return kmsProviders;
+  }
+
+  const { access_token: accessToken } = await gcpMetadata.instance<{ access_token: string }>({
+    property: 'service-accounts/default/token'
+  });
+  return { ...kmsProviders, gcp: { accessToken } };
+}
diff --git a/backend/node_modules/mongodb/src/client-side-encryption/providers/index.ts b/backend/node_modules/mongodb/src/client-side-encryption/providers/index.ts
new file mode 100644
index 0000000..f254cf6
--- /dev/null
+++ b/backend/node_modules/mongodb/src/client-side-encryption/providers/index.ts
@@ -0,0 +1,194 @@
+import type { Binary } from '../../bson';
+import { loadAWSCredentials } from './aws';
+import { loadAzureCredentials } from './azure';
+import { loadGCPCredentials } from './gcp';
+
+/**
+ * @public
+ *
+ * A data key provider.  Allowed values:
+ *
+ * - aws, gcp, local, kmip or azure
+ * - (`mongodb-client-encryption>=6.0.1` only) a named key, in the form of:
+ *    `aws:<name>`, `gcp:<name>`, `local:<name>`, `kmip:<name>`, `azure:<name>`
+ *  where `name` is an alphanumeric string, underscores allowed.
+ */
+export type ClientEncryptionDataKeyProvider = keyof KMSProviders;
+
+/** @public */
+export interface AWSKMSProviderConfiguration {
+  /**
+   * The access key used for the AWS KMS provider
+   */
+  accessKeyId: string;
+
+  /**
+   * The secret access key used for the AWS KMS provider
+   */
+  secretAccessKey: string;
+
+  /**
+   * An optional AWS session token that will be used as the
+   * X-Amz-Security-Token header for AWS requests.
+   */
+  sessionToken?: string;
+}
+
+/** @public */
+export interface LocalKMSProviderConfiguration {
+  /**
+   * The master key used to encrypt/decrypt data keys.
+   * A 96-byte long Buffer or base64 encoded string.
+   */
+  key: Binary | Uint8Array | string;
+}
+
+/** @public */
+export interface KMIPKMSProviderConfiguration {
+  /**
+   * The output endpoint string.
+   * The endpoint consists of a hostname and port separated by a colon.
+   * E.g. "example.com:123". A port is always present.
+   */
+  endpoint?: string;
+}
+
+/** @public */
+export type AzureKMSProviderConfiguration =
+  | {
+      /**
+       * The tenant ID identifies the organization for the account
+       */
+      tenantId: string;
+
+      /**
+       * The client ID to authenticate a registered application
+       */
+      clientId: string;
+
+      /**
+       * The client secret to authenticate a registered application
+       */
+      clientSecret: string;
+
+      /**
+       * If present, a host with optional port. E.g. "example.com" or "example.com:443".
+       * This is optional, and only needed if customer is using a non-commercial Azure instance
+       * (e.g. a government or China account, which use different URLs).
+       * Defaults to "login.microsoftonline.com"
+       */
+      identityPlatformEndpoint?: string | undefined;
+    }
+  | {
+      /**
+       * If present, an access token to authenticate with Azure.
+       */
+      accessToken: string;
+    };
+
+/** @public */
+export type GCPKMSProviderConfiguration =
+  | {
+      /**
+       * The service account email to authenticate
+       */
+      email: string;
+
+      /**
+       * A PKCS#8 encrypted key. This can either be a base64 string or a binary representation
+       */
+      privateKey: string | Buffer;
+
+      /**
+       * If present, a host with optional port. E.g. "example.com" or "example.com:443".
+       * Defaults to "oauth2.googleapis.com"
+       */
+      endpoint?: string | undefined;
+    }
+  | {
+      /**
+       * If present, an access token to authenticate with GCP.
+       */
+      accessToken: string;
+    };
+
+/**
+ * @public
+ * Configuration options that are used by specific KMS providers during key generation, encryption, and decryption.
+ *
+ * Named KMS providers _are not supported_ for automatic KMS credential fetching.
+ */
+export interface KMSProviders {
+  /**
+   * Configuration options for using 'aws' as your KMS provider
+   */
+  aws?: AWSKMSProviderConfiguration | Record<string, never>;
+  [key: `aws:${string}`]: AWSKMSProviderConfiguration;
+
+  /**
+   * Configuration options for using 'local' as your KMS provider
+   */
+  local?: LocalKMSProviderConfiguration;
+  [key: `local:${string}`]: LocalKMSProviderConfiguration;
+
+  /**
+   * Configuration options for using 'kmip' as your KMS provider
+   */
+  kmip?: KMIPKMSProviderConfiguration;
+  [key: `kmip:${string}`]: KMIPKMSProviderConfiguration;
+
+  /**
+   * Configuration options for using 'azure' as your KMS provider
+   */
+  azure?: AzureKMSProviderConfiguration | Record<string, never>;
+  [key: `azure:${string}`]: AzureKMSProviderConfiguration;
+
+  /**
+   * Configuration options for using 'gcp' as your KMS provider
+   */
+  gcp?: GCPKMSProviderConfiguration | Record<string, never>;
+  [key: `gcp:${string}`]: GCPKMSProviderConfiguration;
+}
+
+/**
+ * Auto credential fetching should only occur when the provider is defined on the kmsProviders map
+ * and the settings are an empty object.
+ *
+ * This is distinct from a nullish provider key.
+ *
+ * @internal - exposed for testing purposes only
+ */
+export function isEmptyCredentials(
+  providerName: ClientEncryptionDataKeyProvider,
+  kmsProviders: KMSProviders
+): boolean {
+  const provider = kmsProviders[providerName];
+  if (provider == null) {
+    return false;
+  }
+  return typeof provider === 'object' && Object.keys(provider).length === 0;
+}
+
+/**
+ * Load cloud provider credentials for the user provided KMS providers.
+ * Credentials will only attempt to get loaded if they do not exist
+ * and no existing credentials will get overwritten.
+ *
+ * @internal
+ */
+export async function refreshKMSCredentials(kmsProviders: KMSProviders): Promise<KMSProviders> {
+  let finalKMSProviders = kmsProviders;
+
+  if (isEmptyCredentials('aws', kmsProviders)) {
+    finalKMSProviders = await loadAWSCredentials(finalKMSProviders);
+  }
+
+  if (isEmptyCredentials('gcp', kmsProviders)) {
+    finalKMSProviders = await loadGCPCredentials(finalKMSProviders);
+  }
+
+  if (isEmptyCredentials('azure', kmsProviders)) {
+    finalKMSProviders = await loadAzureCredentials(finalKMSProviders);
+  }
+  return finalKMSProviders;
+}
diff --git a/backend/node_modules/mongodb/src/client-side-encryption/state_machine.ts b/backend/node_modules/mongodb/src/client-side-encryption/state_machine.ts
new file mode 100644
index 0000000..d10776a
--- /dev/null
+++ b/backend/node_modules/mongodb/src/client-side-encryption/state_machine.ts
@@ -0,0 +1,591 @@
+import * as fs from 'fs/promises';
+import { type MongoCryptContext, type MongoCryptKMSRequest } from 'mongodb-client-encryption';
+import * as net from 'net';
+import * as tls from 'tls';
+
+import {
+  type BSONSerializeOptions,
+  deserialize,
+  type Document,
+  pluckBSONSerializeOptions,
+  serialize
+} from '../bson';
+import { type ProxyOptions } from '../cmap/connection';
+import { CursorTimeoutContext } from '../cursor/abstract_cursor';
+import { getSocks, type SocksLib } from '../deps';
+import { MongoOperationTimeoutError } from '../error';
+import { type MongoClient, type MongoClientOptions } from '../mongo_client';
+import { Timeout, type TimeoutContext, TimeoutError } from '../timeout';
+import { BufferPool, MongoDBCollectionNamespace, promiseWithResolvers } from '../utils';
+import { autoSelectSocketOptions, type DataKey } from './client_encryption';
+import { MongoCryptError } from './errors';
+import { type MongocryptdManager } from './mongocryptd_manager';
+import { type KMSProviders } from './providers';
+
+let socks: SocksLib | null = null;
+function loadSocks(): SocksLib {
+  if (socks == null) {
+    const socksImport = getSocks();
+    if ('kModuleError' in socksImport) {
+      throw socksImport.kModuleError;
+    }
+    socks = socksImport;
+  }
+  return socks;
+}
+
+// libmongocrypt states
+const MONGOCRYPT_CTX_ERROR = 0;
+const MONGOCRYPT_CTX_NEED_MONGO_COLLINFO = 1;
+const MONGOCRYPT_CTX_NEED_MONGO_MARKINGS = 2;
+const MONGOCRYPT_CTX_NEED_MONGO_KEYS = 3;
+const MONGOCRYPT_CTX_NEED_KMS_CREDENTIALS = 7;
+const MONGOCRYPT_CTX_NEED_KMS = 4;
+const MONGOCRYPT_CTX_READY = 5;
+const MONGOCRYPT_CTX_DONE = 6;
+
+const HTTPS_PORT = 443;
+
+const stateToString = new Map([
+  [MONGOCRYPT_CTX_ERROR, 'MONGOCRYPT_CTX_ERROR'],
+  [MONGOCRYPT_CTX_NEED_MONGO_COLLINFO, 'MONGOCRYPT_CTX_NEED_MONGO_COLLINFO'],
+  [MONGOCRYPT_CTX_NEED_MONGO_MARKINGS, 'MONGOCRYPT_CTX_NEED_MONGO_MARKINGS'],
+  [MONGOCRYPT_CTX_NEED_MONGO_KEYS, 'MONGOCRYPT_CTX_NEED_MONGO_KEYS'],
+  [MONGOCRYPT_CTX_NEED_KMS_CREDENTIALS, 'MONGOCRYPT_CTX_NEED_KMS_CREDENTIALS'],
+  [MONGOCRYPT_CTX_NEED_KMS, 'MONGOCRYPT_CTX_NEED_KMS'],
+  [MONGOCRYPT_CTX_READY, 'MONGOCRYPT_CTX_READY'],
+  [MONGOCRYPT_CTX_DONE, 'MONGOCRYPT_CTX_DONE']
+]);
+
+const INSECURE_TLS_OPTIONS = [
+  'tlsInsecure',
+  'tlsAllowInvalidCertificates',
+  'tlsAllowInvalidHostnames',
+
+  // These options are disallowed by the spec, so we explicitly filter them out if provided, even
+  // though the StateMachine does not declare support for these options.
+  'tlsDisableOCSPEndpointCheck',
+  'tlsDisableCertificateRevocationCheck'
+];
+
+/**
+ * Helper function for logging. Enabled by setting the environment flag MONGODB_CRYPT_DEBUG.
+ * @param msg - Anything you want to be logged.
+ */
+function debug(msg: unknown) {
+  if (process.env.MONGODB_CRYPT_DEBUG) {
+    // eslint-disable-next-line no-console
+    console.error(msg);
+  }
+}
+
+declare module 'mongodb-client-encryption' {
+  // the properties added to `MongoCryptContext` here are only used for the `StateMachine`'s
+  // execute method and are not part of the C++ bindings.
+  interface MongoCryptContext {
+    id: number;
+    document: Document;
+    ns: string;
+  }
+}
+
+/**
+ * @public
+ *
+ * TLS options to use when connecting. The spec specifically calls out which insecure
+ * tls options are not allowed:
+ *
+ *  - tlsAllowInvalidCertificates
+ *  - tlsAllowInvalidHostnames
+ *  - tlsInsecure
+ *
+ * These options are not included in the type, and are ignored if provided.
+ */
+export type ClientEncryptionTlsOptions = Pick<
+  MongoClientOptions,
+  'tlsCAFile' | 'tlsCertificateKeyFile' | 'tlsCertificateKeyFilePassword'
+>;
+
+/** @public */
+export type CSFLEKMSTlsOptions = {
+  aws?: ClientEncryptionTlsOptions;
+  gcp?: ClientEncryptionTlsOptions;
+  kmip?: ClientEncryptionTlsOptions;
+  local?: ClientEncryptionTlsOptions;
+  azure?: ClientEncryptionTlsOptions;
+
+  [key: string]: ClientEncryptionTlsOptions | undefined;
+};
+
+/**
+ * @public
+ *
+ * Socket options to use for KMS requests.
+ */
+export type ClientEncryptionSocketOptions = Pick<
+  MongoClientOptions,
+  'autoSelectFamily' | 'autoSelectFamilyAttemptTimeout'
+>;
+
+/**
+ * This is kind of a hack.  For `rewrapManyDataKey`, we have tests that
+ * guarantee that when there are no matching keys, `rewrapManyDataKey` returns
+ * nothing.  We also have tests for auto encryption that guarantee for `encrypt`
+ * we return an error when there are no matching keys.  This error is generated in
+ * subsequent iterations of the state machine.
+ * Some apis (`encrypt`) throw if there are no filter matches and others (`rewrapManyDataKey`)
+ * do not.  We set the result manually here, and let the state machine continue.  `libmongocrypt`
+ * will inform us if we need to error by setting the state to `MONGOCRYPT_CTX_ERROR` but
+ * otherwise we'll return `{ v: [] }`.
+ */
+let EMPTY_V;
+
+/**
+ * @internal
+ *
+ * An interface representing an object that can be passed to the `StateMachine.execute` method.
+ *
+ * Not all properties are required for all operations.
+ */
+export interface StateMachineExecutable {
+  _keyVaultNamespace: string;
+  _keyVaultClient: MongoClient;
+  askForKMSCredentials: () => Promise<KMSProviders>;
+
+  /** only used for auto encryption */
+  _metaDataClient?: MongoClient;
+  /** only used for auto encryption */
+  _mongocryptdClient?: MongoClient;
+  /** only used for auto encryption */
+  _mongocryptdManager?: MongocryptdManager;
+}
+
+export type StateMachineOptions = {
+  /** socks5 proxy options, if set. */
+  proxyOptions: ProxyOptions;
+
+  /** TLS options for KMS requests, if set. */
+  tlsOptions: CSFLEKMSTlsOptions;
+
+  /** Socket specific options we support. */
+  socketOptions: ClientEncryptionSocketOptions;
+} & Pick<BSONSerializeOptions, 'promoteLongs' | 'promoteValues'>;
+
+/**
+ * @internal
+ * An internal class that executes across a MongoCryptContext until either
+ * a finishing state or an error is reached. Do not instantiate directly.
+ */
+// TODO(DRIVERS-2671): clarify CSOT behavior for FLE APIs
+export class StateMachine {
+  constructor(
+    private options: StateMachineOptions,
+    private bsonOptions = pluckBSONSerializeOptions(options)
+  ) {}
+
+  /**
+   * Executes the state machine according to the specification
+   */
+  async execute(
+    executor: StateMachineExecutable,
+    context: MongoCryptContext,
+    timeoutContext?: TimeoutContext
+  ): Promise<Uint8Array> {
+    const keyVaultNamespace = executor._keyVaultNamespace;
+    const keyVaultClient = executor._keyVaultClient;
+    const metaDataClient = executor._metaDataClient;
+    const mongocryptdClient = executor._mongocryptdClient;
+    const mongocryptdManager = executor._mongocryptdManager;
+    let result: Uint8Array | null = null;
+
+    while (context.state !== MONGOCRYPT_CTX_DONE && context.state !== MONGOCRYPT_CTX_ERROR) {
+      debug(`[context#${context.id}] ${stateToString.get(context.state) || context.state}`);
+
+      switch (context.state) {
+        case MONGOCRYPT_CTX_NEED_MONGO_COLLINFO: {
+          const filter = deserialize(context.nextMongoOperation());
+          if (!metaDataClient) {
+            throw new MongoCryptError(
+              'unreachable state machine state: entered MONGOCRYPT_CTX_NEED_MONGO_COLLINFO but metadata client is undefined'
+            );
+          }
+
+          const collInfo = await this.fetchCollectionInfo(
+            metaDataClient,
+            context.ns,
+            filter,
+            timeoutContext
+          );
+          if (collInfo) {
+            context.addMongoOperationResponse(collInfo);
+          }
+
+          context.finishMongoOperation();
+          break;
+        }
+
+        case MONGOCRYPT_CTX_NEED_MONGO_MARKINGS: {
+          const command = context.nextMongoOperation();
+          if (!mongocryptdClient) {
+            throw new MongoCryptError(
+              'unreachable state machine state: entered MONGOCRYPT_CTX_NEED_MONGO_MARKINGS but mongocryptdClient is undefined'
+            );
+          }
+
+          // When we are using the shared library, we don't have a mongocryptd manager.
+          const markedCommand: Uint8Array = mongocryptdManager
+            ? await mongocryptdManager.withRespawn(
+                this.markCommand.bind(this, mongocryptdClient, context.ns, command, timeoutContext)
+              )
+            : await this.markCommand(mongocryptdClient, context.ns, command, timeoutContext);
+
+          context.addMongoOperationResponse(markedCommand);
+          context.finishMongoOperation();
+          break;
+        }
+
+        case MONGOCRYPT_CTX_NEED_MONGO_KEYS: {
+          const filter = context.nextMongoOperation();
+          const keys = await this.fetchKeys(
+            keyVaultClient,
+            keyVaultNamespace,
+            filter,
+            timeoutContext
+          );
+
+          if (keys.length === 0) {
+            // See docs on EMPTY_V
+            result = EMPTY_V ??= serialize({ v: [] });
+          }
+          for await (const key of keys) {
+            context.addMongoOperationResponse(serialize(key));
+          }
+
+          context.finishMongoOperation();
+
+          break;
+        }
+
+        case MONGOCRYPT_CTX_NEED_KMS_CREDENTIALS: {
+          const kmsProviders = await executor.askForKMSCredentials();
+          context.provideKMSProviders(serialize(kmsProviders));
+          break;
+        }
+
+        case MONGOCRYPT_CTX_NEED_KMS: {
+          await Promise.all(this.requests(context, timeoutContext));
+          context.finishKMSRequests();
+          break;
+        }
+
+        case MONGOCRYPT_CTX_READY: {
+          const finalizedContext = context.finalize();
+          // @ts-expect-error finalize can change the state, check for error
+          if (context.state === MONGOCRYPT_CTX_ERROR) {
+            const message = context.status.message || 'Finalization error';
+            throw new MongoCryptError(message);
+          }
+          result = finalizedContext;
+          break;
+        }
+
+        default:
+          throw new MongoCryptError(`Unknown state: ${context.state}`);
+      }
+    }
+
+    if (context.state === MONGOCRYPT_CTX_ERROR || result == null) {
+      const message = context.status.message;
+      if (!message) {
+        debug(
+          `unidentifiable error in MongoCrypt - received an error status from \`libmongocrypt\` but received no error message.`
+        );
+      }
+      throw new MongoCryptError(
+        message ??
+          'unidentifiable error in MongoCrypt - received an error status from `libmongocrypt` but received no error message.'
+      );
+    }
+
+    return result;
+  }
+
+  /**
+   * Handles the request to the KMS service. Exposed for testing purposes. Do not directly invoke.
+   * @param kmsContext - A C++ KMS context returned from the bindings
+   * @returns A promise that resolves when the KMS reply has be fully parsed
+   */
+  async kmsRequest(request: MongoCryptKMSRequest, timeoutContext?: TimeoutContext): Promise<void> {
+    const parsedUrl = request.endpoint.split(':');
+    const port = parsedUrl[1] != null ? Number.parseInt(parsedUrl[1], 10) : HTTPS_PORT;
+    const socketOptions = autoSelectSocketOptions(this.options.socketOptions || {});
+    const options: tls.ConnectionOptions & {
+      host: string;
+      port: number;
+      autoSelectFamily?: boolean;
+      autoSelectFamilyAttemptTimeout?: number;
+    } = {
+      host: parsedUrl[0],
+      servername: parsedUrl[0],
+      port,
+      ...socketOptions
+    };
+    const message = request.message;
+    const buffer = new BufferPool();
+
+    const netSocket: net.Socket = new net.Socket();
+    let socket: tls.TLSSocket;
+
+    function destroySockets() {
+      for (const sock of [socket, netSocket]) {
+        if (sock) {
+          sock.removeAllListeners();
+          sock.destroy();
+        }
+      }
+    }
+
+    function onerror(cause: Error) {
+      return new MongoCryptError('KMS request failed', { cause });
+    }
+
+    function onclose() {
+      return new MongoCryptError('KMS request closed');
+    }
+
+    const tlsOptions = this.options.tlsOptions;
+    if (tlsOptions) {
+      const kmsProvider = request.kmsProvider;
+      const providerTlsOptions = tlsOptions[kmsProvider];
+      if (providerTlsOptions) {
+        const error = this.validateTlsOptions(kmsProvider, providerTlsOptions);
+        if (error) {
+          throw error;
+        }
+        try {
+          await this.setTlsOptions(providerTlsOptions, options);
+        } catch (err) {
+          throw onerror(err);
+        }
+      }
+    }
+
+    const {
+      promise: willConnect,
+      reject: rejectOnNetSocketError,
+      resolve: resolveOnNetSocketConnect
+    } = promiseWithResolvers<void>();
+    netSocket
+      .once('error', err => rejectOnNetSocketError(onerror(err)))
+      .once('close', () => rejectOnNetSocketError(onclose()))
+      .once('connect', () => resolveOnNetSocketConnect());
+
+    try {
+      if (this.options.proxyOptions && this.options.proxyOptions.proxyHost) {
+        const netSocketOptions = {
+          host: this.options.proxyOptions.proxyHost,
+          port: this.options.proxyOptions.proxyPort || 1080,
+          ...socketOptions
+        };
+        netSocket.connect(netSocketOptions);
+        await willConnect;
+
+        try {
+          socks ??= loadSocks();
+          options.socket = (
+            await socks.SocksClient.createConnection({
+              existing_socket: netSocket,
+              command: 'connect',
+              destination: { host: options.host, port: options.port },
+              proxy: {
+                // host and port are ignored because we pass existing_socket
+                host: 'iLoveJavaScript',
+                port: 0,
+                type: 5,
+                userId: this.options.proxyOptions.proxyUsername,
+                password: this.options.proxyOptions.proxyPassword
+              }
+            })
+          ).socket;
+        } catch (err) {
+          throw onerror(err);
+        }
+      }
+
+      socket = tls.connect(options, () => {
+        socket.write(message);
+      });
+
+      const {
+        promise: willResolveKmsRequest,
+        reject: rejectOnTlsSocketError,
+        resolve
+      } = promiseWithResolvers<void>();
+
+      socket
+        .once('error', err => rejectOnTlsSocketError(onerror(err)))
+        .once('close', () => rejectOnTlsSocketError(onclose()))
+        .on('data', data => {
+          buffer.append(data);
+          while (request.bytesNeeded > 0 && buffer.length) {
+            const bytesNeeded = Math.min(request.bytesNeeded, buffer.length);
+            request.addResponse(buffer.read(bytesNeeded));
+          }
+
+          if (request.bytesNeeded <= 0) {
+            resolve();
+          }
+        });
+      await (timeoutContext?.csotEnabled()
+        ? Promise.all([willResolveKmsRequest, Timeout.expires(timeoutContext?.remainingTimeMS)])
+        : willResolveKmsRequest);
+    } catch (error) {
+      if (error instanceof TimeoutError)
+        throw new MongoOperationTimeoutError('KMS request timed out');
+      throw error;
+    } finally {
+      // There's no need for any more activity on this socket at this point.
+      destroySockets();
+    }
+  }
+
+  *requests(context: MongoCryptContext, timeoutContext?: TimeoutContext) {
+    for (
+      let request = context.nextKMSRequest();
+      request != null;
+      request = context.nextKMSRequest()
+    ) {
+      yield this.kmsRequest(request, timeoutContext);
+    }
+  }
+
+  /**
+   * Validates the provided TLS options are secure.
+   *
+   * @param kmsProvider - The KMS provider name.
+   * @param tlsOptions - The client TLS options for the provider.
+   *
+   * @returns An error if any option is invalid.
+   */
+  validateTlsOptions(
+    kmsProvider: string,
+    tlsOptions: ClientEncryptionTlsOptions
+  ): MongoCryptError | void {
+    const tlsOptionNames = Object.keys(tlsOptions);
+    for (const option of INSECURE_TLS_OPTIONS) {
+      if (tlsOptionNames.includes(option)) {
+        return new MongoCryptError(`Insecure TLS options prohibited for ${kmsProvider}: ${option}`);
+      }
+    }
+  }
+
+  /**
+   * Sets only the valid secure TLS options.
+   *
+   * @param tlsOptions - The client TLS options for the provider.
+   * @param options - The existing connection options.
+   */
+  async setTlsOptions(
+    tlsOptions: ClientEncryptionTlsOptions,
+    options: tls.ConnectionOptions
+  ): Promise<void> {
+    if (tlsOptions.tlsCertificateKeyFile) {
+      const cert = await fs.readFile(tlsOptions.tlsCertificateKeyFile);
+      options.cert = options.key = cert;
+    }
+    if (tlsOptions.tlsCAFile) {
+      options.ca = await fs.readFile(tlsOptions.tlsCAFile);
+    }
+    if (tlsOptions.tlsCertificateKeyFilePassword) {
+      options.passphrase = tlsOptions.tlsCertificateKeyFilePassword;
+    }
+  }
+
+  /**
+   * Fetches collection info for a provided namespace, when libmongocrypt
+   * enters the `MONGOCRYPT_CTX_NEED_MONGO_COLLINFO` state. The result is
+   * used to inform libmongocrypt of the schema associated with this
+   * namespace. Exposed for testing purposes. Do not directly invoke.
+   *
+   * @param client - A MongoClient connected to the topology
+   * @param ns - The namespace to list collections from
+   * @param filter - A filter for the listCollections command
+   * @param callback - Invoked with the info of the requested collection, or with an error
+   */
+  async fetchCollectionInfo(
+    client: MongoClient,
+    ns: string,
+    filter: Document,
+    timeoutContext?: TimeoutContext
+  ): Promise<Uint8Array | null> {
+    const { db } = MongoDBCollectionNamespace.fromString(ns);
+
+    const cursor = client.db(db).listCollections(filter, {
+      promoteLongs: false,
+      promoteValues: false,
+      timeoutContext: timeoutContext && new CursorTimeoutContext(timeoutContext, Symbol())
+    });
+
+    // There is always exactly zero or one matching documents, so this should always exhaust the cursor
+    // in a single batch.  We call `toArray()` just to be safe and ensure that the cursor is always
+    // exhausted and closed.
+    const collections = await cursor.toArray();
+
+    const info = collections.length > 0 ? serialize(collections[0]) : null;
+    return info;
+  }
+
+  /**
+   * Calls to the mongocryptd to provide markings for a command.
+   * Exposed for testing purposes. Do not directly invoke.
+   * @param client - A MongoClient connected to a mongocryptd
+   * @param ns - The namespace (database.collection) the command is being executed on
+   * @param command - The command to execute.
+   * @param callback - Invoked with the serialized and marked bson command, or with an error
+   */
+  async markCommand(
+    client: MongoClient,
+    ns: string,
+    command: Uint8Array,
+    timeoutContext?: TimeoutContext
+  ): Promise<Uint8Array> {
+    const { db } = MongoDBCollectionNamespace.fromString(ns);
+    const bsonOptions = { promoteLongs: false, promoteValues: false };
+    const rawCommand = deserialize(command, bsonOptions);
+
+    const response = await client.db(db).command(rawCommand, {
+      ...bsonOptions,
+      ...(timeoutContext?.csotEnabled()
+        ? { timeoutMS: timeoutContext?.remainingTimeMS }
+        : undefined)
+    });
+
+    return serialize(response, this.bsonOptions);
+  }
+
+  /**
+   * Requests keys from the keyVault collection on the topology.
+   * Exposed for testing purposes. Do not directly invoke.
+   * @param client - A MongoClient connected to the topology
+   * @param keyVaultNamespace - The namespace (database.collection) of the keyVault Collection
+   * @param filter - The filter for the find query against the keyVault Collection
+   * @param callback - Invoked with the found keys, or with an error
+   */
+  fetchKeys(
+    client: MongoClient,
+    keyVaultNamespace: string,
+    filter: Uint8Array,
+    timeoutContext?: TimeoutContext
+  ): Promise<Array<DataKey>> {
+    const { db: dbName, collection: collectionName } =
+      MongoDBCollectionNamespace.fromString(keyVaultNamespace);
+
+    return client
+      .db(dbName)
+      .collection<DataKey>(collectionName, { readConcern: { level: 'majority' } })
+      .find(deserialize(filter), {
+        timeoutContext: timeoutContext && new CursorTimeoutContext(timeoutContext, Symbol())
+      })
+      .toArray();
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cmap/auth/auth_provider.ts b/backend/node_modules/mongodb/src/cmap/auth/auth_provider.ts
new file mode 100644
index 0000000..e40c791
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/auth/auth_provider.ts
@@ -0,0 +1,77 @@
+import type { Document } from '../../bson';
+import { MongoRuntimeError } from '../../error';
+import type { HandshakeDocument } from '../connect';
+import type { Connection, ConnectionOptions } from '../connection';
+import type { MongoCredentials } from './mongo_credentials';
+
+/**
+ * Context used during authentication
+ * @internal
+ */
+export class AuthContext {
+  /** The connection to authenticate */
+  connection: Connection;
+  /** The credentials to use for authentication */
+  credentials?: MongoCredentials;
+  /** If the context is for reauthentication. */
+  reauthenticating = false;
+  /** The options passed to the `connect` method */
+  options: ConnectionOptions;
+
+  /** A response from an initial auth attempt, only some mechanisms use this (e.g, SCRAM) */
+  response?: Document;
+  /** A random nonce generated for use in an authentication conversation */
+  nonce?: Buffer;
+
+  constructor(
+    connection: Connection,
+    credentials: MongoCredentials | undefined,
+    options: ConnectionOptions
+  ) {
+    this.connection = connection;
+    this.credentials = credentials;
+    this.options = options;
+  }
+}
+
+/**
+ * Provider used during authentication.
+ * @internal
+ */
+export abstract class AuthProvider {
+  /**
+   * Prepare the handshake document before the initial handshake.
+   *
+   * @param handshakeDoc - The document used for the initial handshake on a connection
+   * @param authContext - Context for authentication flow
+   */
+  async prepare(
+    handshakeDoc: HandshakeDocument,
+    _authContext: AuthContext
+  ): Promise<HandshakeDocument> {
+    return handshakeDoc;
+  }
+
+  /**
+   * Authenticate
+   *
+   * @param context - A shared context for authentication flow
+   */
+  abstract auth(context: AuthContext): Promise<void>;
+
+  /**
+   * Reauthenticate.
+   * @param context - The shared auth context.
+   */
+  async reauth(context: AuthContext): Promise<void> {
+    if (context.reauthenticating) {
+      throw new MongoRuntimeError('Reauthentication already in progress.');
+    }
+    try {
+      context.reauthenticating = true;
+      await this.auth(context);
+    } finally {
+      context.reauthenticating = false;
+    }
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cmap/auth/aws_temporary_credentials.ts b/backend/node_modules/mongodb/src/cmap/auth/aws_temporary_credentials.ts
new file mode 100644
index 0000000..c93456a
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/auth/aws_temporary_credentials.ts
@@ -0,0 +1,169 @@
+import { type AWSCredentials, getAwsCredentialProvider } from '../../deps';
+import { MongoAWSError } from '../../error';
+import { request } from '../../utils';
+
+const AWS_RELATIVE_URI = 'http://169.254.170.2';
+const AWS_EC2_URI = 'http://169.254.169.254';
+const AWS_EC2_PATH = '/latest/meta-data/iam/security-credentials';
+
+/**
+ * @internal
+ * This interface matches the final result of fetching temporary credentials manually, outlined
+ * in the spec [here](https://github.com/mongodb/specifications/blob/master/source/auth/auth.md#ec2-endpoint).
+ *
+ * When we use the AWS SDK, we map the response from the SDK to conform to this interface.
+ */
+export interface AWSTempCredentials {
+  AccessKeyId?: string;
+  SecretAccessKey?: string;
+  Token?: string;
+  RoleArn?: string;
+  Expiration?: Date;
+}
+
+/**
+ * @internal
+ *
+ * Fetches temporary AWS credentials.
+ */
+export abstract class AWSTemporaryCredentialProvider {
+  abstract getCredentials(): Promise<AWSTempCredentials>;
+  private static _awsSDK: ReturnType<typeof getAwsCredentialProvider>;
+  protected static get awsSDK() {
+    AWSTemporaryCredentialProvider._awsSDK ??= getAwsCredentialProvider();
+    return AWSTemporaryCredentialProvider._awsSDK;
+  }
+
+  static get isAWSSDKInstalled(): boolean {
+    return !('kModuleError' in AWSTemporaryCredentialProvider.awsSDK);
+  }
+}
+
+/** @internal */
+export class AWSSDKCredentialProvider extends AWSTemporaryCredentialProvider {
+  private _provider?: () => Promise<AWSCredentials>;
+  /**
+   * The AWS SDK caches credentials automatically and handles refresh when the credentials have expired.
+   * To ensure this occurs, we need to cache the `provider` returned by the AWS sdk and re-use it when fetching credentials.
+   */
+  private get provider(): () => Promise<AWSCredentials> {
+    if ('kModuleError' in AWSTemporaryCredentialProvider.awsSDK) {
+      throw AWSTemporaryCredentialProvider.awsSDK.kModuleError;
+    }
+    if (this._provider) {
+      return this._provider;
+    }
+    let { AWS_STS_REGIONAL_ENDPOINTS = '', AWS_REGION = '' } = process.env;
+    AWS_STS_REGIONAL_ENDPOINTS = AWS_STS_REGIONAL_ENDPOINTS.toLowerCase();
+    AWS_REGION = AWS_REGION.toLowerCase();
+
+    /** The option setting should work only for users who have explicit settings in their environment, the driver should not encode "defaults" */
+    const awsRegionSettingsExist =
+      AWS_REGION.length !== 0 && AWS_STS_REGIONAL_ENDPOINTS.length !== 0;
+
+    /**
+     * The following regions use the global AWS STS endpoint, sts.amazonaws.com, by default
+     * https://docs.aws.amazon.com/sdkref/latest/guide/feature-sts-regionalized-endpoints.html
+     */
+    const LEGACY_REGIONS = new Set([
+      'ap-northeast-1',
+      'ap-south-1',
+      'ap-southeast-1',
+      'ap-southeast-2',
+      'aws-global',
+      'ca-central-1',
+      'eu-central-1',
+      'eu-north-1',
+      'eu-west-1',
+      'eu-west-2',
+      'eu-west-3',
+      'sa-east-1',
+      'us-east-1',
+      'us-east-2',
+      'us-west-1',
+      'us-west-2'
+    ]);
+    /**
+     * If AWS_STS_REGIONAL_ENDPOINTS is set to regional, users are opting into the new behavior of respecting the region settings
+     *
+     * If AWS_STS_REGIONAL_ENDPOINTS is set to legacy, then "old" regions need to keep using the global setting.
+     * Technically the SDK gets this wrong, it reaches out to 'sts.us-east-1.amazonaws.com' when it should be 'sts.amazonaws.com'.
+     * That is not our bug to fix here. We leave that up to the SDK.
+     */
+    const useRegionalSts =
+      AWS_STS_REGIONAL_ENDPOINTS === 'regional' ||
+      (AWS_STS_REGIONAL_ENDPOINTS === 'legacy' && !LEGACY_REGIONS.has(AWS_REGION));
+
+    this._provider =
+      awsRegionSettingsExist && useRegionalSts
+        ? AWSTemporaryCredentialProvider.awsSDK.fromNodeProviderChain({
+            clientConfig: { region: AWS_REGION }
+          })
+        : AWSTemporaryCredentialProvider.awsSDK.fromNodeProviderChain();
+
+    return this._provider;
+  }
+
+  override async getCredentials(): Promise<AWSTempCredentials> {
+    /*
+     * Creates a credential provider that will attempt to find credentials from the
+     * following sources (listed in order of precedence):
+     *
+     * - Environment variables exposed via process.env
+     * - SSO credentials from token cache
+     * - Web identity token credentials
+     * - Shared credentials and config ini files
+     * - The EC2/ECS Instance Metadata Service
+     */
+    try {
+      const creds = await this.provider();
+      return {
+        AccessKeyId: creds.accessKeyId,
+        SecretAccessKey: creds.secretAccessKey,
+        Token: creds.sessionToken,
+        Expiration: creds.expiration
+      };
+    } catch (error) {
+      throw new MongoAWSError(error.message, { cause: error });
+    }
+  }
+}
+
+/**
+ * @internal
+ * Fetches credentials manually (without the AWS SDK), as outlined in the [Obtaining Credentials](https://github.com/mongodb/specifications/blob/master/source/auth/auth.md#obtaining-credentials)
+ * section of the Auth spec.
+ */
+export class LegacyAWSTemporaryCredentialProvider extends AWSTemporaryCredentialProvider {
+  override async getCredentials(): Promise<AWSTempCredentials> {
+    // If the environment variable AWS_CONTAINER_CREDENTIALS_RELATIVE_URI
+    // is set then drivers MUST assume that it was set by an AWS ECS agent
+    if (process.env.AWS_CONTAINER_CREDENTIALS_RELATIVE_URI) {
+      return await request(
+        `${AWS_RELATIVE_URI}${process.env.AWS_CONTAINER_CREDENTIALS_RELATIVE_URI}`
+      );
+    }
+
+    // Otherwise assume we are on an EC2 instance
+
+    // get a token
+    const token = await request(`${AWS_EC2_URI}/latest/api/token`, {
+      method: 'PUT',
+      json: false,
+      headers: { 'X-aws-ec2-metadata-token-ttl-seconds': 30 }
+    });
+
+    // get role name
+    const roleName = await request(`${AWS_EC2_URI}/${AWS_EC2_PATH}`, {
+      json: false,
+      headers: { 'X-aws-ec2-metadata-token': token }
+    });
+
+    // get temp credentials
+    const creds = await request(`${AWS_EC2_URI}/${AWS_EC2_PATH}/${roleName}`, {
+      headers: { 'X-aws-ec2-metadata-token': token }
+    });
+
+    return creds;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cmap/auth/gssapi.ts b/backend/node_modules/mongodb/src/cmap/auth/gssapi.ts
new file mode 100644
index 0000000..430b97d
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/auth/gssapi.ts
@@ -0,0 +1,202 @@
+import * as dns from 'dns';
+
+import { getKerberos, type Kerberos, type KerberosClient } from '../../deps';
+import { MongoInvalidArgumentError, MongoMissingCredentialsError } from '../../error';
+import { ns } from '../../utils';
+import type { Connection } from '../connection';
+import { type AuthContext, AuthProvider } from './auth_provider';
+
+/** @public */
+export const GSSAPICanonicalizationValue = Object.freeze({
+  on: true,
+  off: false,
+  none: 'none',
+  forward: 'forward',
+  forwardAndReverse: 'forwardAndReverse'
+} as const);
+
+/** @public */
+export type GSSAPICanonicalizationValue =
+  (typeof GSSAPICanonicalizationValue)[keyof typeof GSSAPICanonicalizationValue];
+
+type MechanismProperties = {
+  CANONICALIZE_HOST_NAME?: GSSAPICanonicalizationValue;
+  SERVICE_HOST?: string;
+  SERVICE_NAME?: string;
+  SERVICE_REALM?: string;
+};
+
+async function externalCommand(
+  connection: Connection,
+  command: ReturnType<typeof saslStart> | ReturnType<typeof saslContinue>
+): Promise<{ payload: string; conversationId: number }> {
+  const response = await connection.command(ns('$external.$cmd'), command);
+  return response as { payload: string; conversationId: number };
+}
+
+let krb: Kerberos;
+
+export class GSSAPI extends AuthProvider {
+  override async auth(authContext: AuthContext): Promise<void> {
+    const { connection, credentials } = authContext;
+    if (credentials == null) {
+      throw new MongoMissingCredentialsError('Credentials required for GSSAPI authentication');
+    }
+
+    const { username } = credentials;
+
+    const client = await makeKerberosClient(authContext);
+
+    const payload = await client.step('');
+
+    const saslStartResponse = await externalCommand(connection, saslStart(payload));
+
+    const negotiatedPayload = await negotiate(client, 10, saslStartResponse.payload);
+
+    const saslContinueResponse = await externalCommand(
+      connection,
+      saslContinue(negotiatedPayload, saslStartResponse.conversationId)
+    );
+
+    const finalizePayload = await finalize(client, username, saslContinueResponse.payload);
+
+    await externalCommand(connection, {
+      saslContinue: 1,
+      conversationId: saslContinueResponse.conversationId,
+      payload: finalizePayload
+    });
+  }
+}
+
+async function makeKerberosClient(authContext: AuthContext): Promise<KerberosClient> {
+  const { hostAddress } = authContext.options;
+  const { credentials } = authContext;
+  if (!hostAddress || typeof hostAddress.host !== 'string' || !credentials) {
+    throw new MongoInvalidArgumentError(
+      'Connection must have host and port and credentials defined.'
+    );
+  }
+
+  loadKrb();
+  if ('kModuleError' in krb) {
+    throw krb['kModuleError'];
+  }
+  const { initializeClient } = krb;
+
+  const { username, password } = credentials;
+  const mechanismProperties = credentials.mechanismProperties as MechanismProperties;
+
+  const serviceName = mechanismProperties.SERVICE_NAME ?? 'mongodb';
+
+  const host = await performGSSAPICanonicalizeHostName(hostAddress.host, mechanismProperties);
+
+  const initOptions = {};
+  if (password != null) {
+    // TODO(NODE-5139): These do not match the typescript options in initializeClient
+    Object.assign(initOptions, { user: username, password: password });
+  }
+
+  const spnHost = mechanismProperties.SERVICE_HOST ?? host;
+  let spn = `${serviceName}${process.platform === 'win32' ? '/' : '@'}${spnHost}`;
+  if ('SERVICE_REALM' in mechanismProperties) {
+    spn = `${spn}@${mechanismProperties.SERVICE_REALM}`;
+  }
+
+  return await initializeClient(spn, initOptions);
+}
+
+function saslStart(payload: string) {
+  return {
+    saslStart: 1,
+    mechanism: 'GSSAPI',
+    payload,
+    autoAuthorize: 1
+  } as const;
+}
+
+function saslContinue(payload: string, conversationId: number) {
+  return {
+    saslContinue: 1,
+    conversationId,
+    payload
+  } as const;
+}
+
+async function negotiate(
+  client: KerberosClient,
+  retries: number,
+  payload: string
+): Promise<string> {
+  try {
+    const response = await client.step(payload);
+    return response || '';
+  } catch (error) {
+    if (retries === 0) {
+      // Retries exhausted, raise error
+      throw error;
+    }
+    // Adjust number of retries and call step again
+    return await negotiate(client, retries - 1, payload);
+  }
+}
+
+async function finalize(client: KerberosClient, user: string, payload: string): Promise<string> {
+  // GSS Client Unwrap
+  const response = await client.unwrap(payload);
+  return await client.wrap(response || '', { user });
+}
+
+export async function performGSSAPICanonicalizeHostName(
+  host: string,
+  mechanismProperties: MechanismProperties
+): Promise<string> {
+  const mode = mechanismProperties.CANONICALIZE_HOST_NAME;
+  if (!mode || mode === GSSAPICanonicalizationValue.none) {
+    return host;
+  }
+
+  // If forward and reverse or true
+  if (
+    mode === GSSAPICanonicalizationValue.on ||
+    mode === GSSAPICanonicalizationValue.forwardAndReverse
+  ) {
+    // Perform the lookup of the ip address.
+    const { address } = await dns.promises.lookup(host);
+
+    try {
+      // Perform a reverse ptr lookup on the ip address.
+      const results = await dns.promises.resolvePtr(address);
+      // If the ptr did not error but had no results, return the host.
+      return results.length > 0 ? results[0] : host;
+    } catch {
+      // This can error as ptr records may not exist for all ips. In this case
+      // fallback to a cname lookup as dns.lookup() does not return the
+      // cname.
+      return await resolveCname(host);
+    }
+  } else {
+    // The case for forward is just to resolve the cname as dns.lookup()
+    // will not return it.
+    return await resolveCname(host);
+  }
+}
+
+export async function resolveCname(host: string): Promise<string> {
+  // Attempt to resolve the host name
+  try {
+    const results = await dns.promises.resolveCname(host);
+    // Get the first resolved host id
+    return results.length > 0 ? results[0] : host;
+  } catch {
+    return host;
+  }
+}
+
+/**
+ * Load the Kerberos library.
+ */
+function loadKrb() {
+  if (!krb) {
+    krb = getKerberos();
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cmap/auth/mongo_credentials.ts b/backend/node_modules/mongodb/src/cmap/auth/mongo_credentials.ts
new file mode 100644
index 0000000..97c4579
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/auth/mongo_credentials.ts
@@ -0,0 +1,282 @@
+// Resolves the default auth mechanism according to
+// Resolves the default auth mechanism according to
+import type { Document } from '../../bson';
+import {
+  MongoAPIError,
+  MongoInvalidArgumentError,
+  MongoMissingCredentialsError
+} from '../../error';
+import { GSSAPICanonicalizationValue } from './gssapi';
+import type { OIDCCallbackFunction } from './mongodb_oidc';
+import { AUTH_MECHS_AUTH_SRC_EXTERNAL, AuthMechanism } from './providers';
+
+/**
+ * @see https://github.com/mongodb/specifications/blob/master/source/auth/auth.md
+ */
+function getDefaultAuthMechanism(hello: Document | null): AuthMechanism {
+  if (hello) {
+    // If hello contains saslSupportedMechs, use scram-sha-256
+    // if it is available, else scram-sha-1
+    if (Array.isArray(hello.saslSupportedMechs)) {
+      return hello.saslSupportedMechs.includes(AuthMechanism.MONGODB_SCRAM_SHA256)
+        ? AuthMechanism.MONGODB_SCRAM_SHA256
+        : AuthMechanism.MONGODB_SCRAM_SHA1;
+    }
+  }
+
+  // Default auth mechanism for 4.0 and higher.
+  return AuthMechanism.MONGODB_SCRAM_SHA256;
+}
+
+const ALLOWED_ENVIRONMENT_NAMES: AuthMechanismProperties['ENVIRONMENT'][] = [
+  'test',
+  'azure',
+  'gcp',
+  'k8s'
+];
+const ALLOWED_HOSTS_ERROR = 'Auth mechanism property ALLOWED_HOSTS must be an array of strings.';
+
+/** @internal */
+export const DEFAULT_ALLOWED_HOSTS = [
+  '*.mongodb.net',
+  '*.mongodb-qa.net',
+  '*.mongodb-dev.net',
+  '*.mongodbgov.net',
+  'localhost',
+  '127.0.0.1',
+  '::1'
+];
+
+/** Error for when the token audience is missing in the environment. */
+const TOKEN_RESOURCE_MISSING_ERROR =
+  'TOKEN_RESOURCE must be set in the auth mechanism properties when ENVIRONMENT is azure or gcp.';
+
+/** @public */
+export interface AuthMechanismProperties extends Document {
+  SERVICE_HOST?: string;
+  SERVICE_NAME?: string;
+  SERVICE_REALM?: string;
+  CANONICALIZE_HOST_NAME?: GSSAPICanonicalizationValue;
+  AWS_SESSION_TOKEN?: string;
+  /** A user provided OIDC machine callback function. */
+  OIDC_CALLBACK?: OIDCCallbackFunction;
+  /** A user provided OIDC human interacted callback function. */
+  OIDC_HUMAN_CALLBACK?: OIDCCallbackFunction;
+  /** The OIDC environment. Note that 'test' is for internal use only. */
+  ENVIRONMENT?: 'test' | 'azure' | 'gcp' | 'k8s';
+  /** Allowed hosts that OIDC auth can connect to. */
+  ALLOWED_HOSTS?: string[];
+  /** The resource token for OIDC auth in Azure and GCP. */
+  TOKEN_RESOURCE?: string;
+}
+
+/** @public */
+export interface MongoCredentialsOptions {
+  username?: string;
+  password: string;
+  source: string;
+  db?: string;
+  mechanism?: AuthMechanism;
+  mechanismProperties: AuthMechanismProperties;
+}
+
+/**
+ * A representation of the credentials used by MongoDB
+ * @public
+ */
+export class MongoCredentials {
+  /** The username used for authentication */
+  readonly username: string;
+  /** The password used for authentication */
+  readonly password: string;
+  /** The database that the user should authenticate against */
+  readonly source: string;
+  /** The method used to authenticate */
+  readonly mechanism: AuthMechanism;
+  /** Special properties used by some types of auth mechanisms */
+  readonly mechanismProperties: AuthMechanismProperties;
+
+  constructor(options: MongoCredentialsOptions) {
+    this.username = options.username ?? '';
+    this.password = options.password;
+    this.source = options.source;
+    if (!this.source && options.db) {
+      this.source = options.db;
+    }
+    this.mechanism = options.mechanism || AuthMechanism.MONGODB_DEFAULT;
+    this.mechanismProperties = options.mechanismProperties || {};
+
+    if (this.mechanism.match(/MONGODB-AWS/i)) {
+      if (!this.username && process.env.AWS_ACCESS_KEY_ID) {
+        this.username = process.env.AWS_ACCESS_KEY_ID;
+      }
+
+      if (!this.password && process.env.AWS_SECRET_ACCESS_KEY) {
+        this.password = process.env.AWS_SECRET_ACCESS_KEY;
+      }
+
+      if (
+        this.mechanismProperties.AWS_SESSION_TOKEN == null &&
+        process.env.AWS_SESSION_TOKEN != null
+      ) {
+        this.mechanismProperties = {
+          ...this.mechanismProperties,
+          AWS_SESSION_TOKEN: process.env.AWS_SESSION_TOKEN
+        };
+      }
+    }
+
+    if (this.mechanism === AuthMechanism.MONGODB_OIDC && !this.mechanismProperties.ALLOWED_HOSTS) {
+      this.mechanismProperties = {
+        ...this.mechanismProperties,
+        ALLOWED_HOSTS: DEFAULT_ALLOWED_HOSTS
+      };
+    }
+
+    Object.freeze(this.mechanismProperties);
+    Object.freeze(this);
+  }
+
+  /** Determines if two MongoCredentials objects are equivalent */
+  equals(other: MongoCredentials): boolean {
+    return (
+      this.mechanism === other.mechanism &&
+      this.username === other.username &&
+      this.password === other.password &&
+      this.source === other.source
+    );
+  }
+
+  /**
+   * If the authentication mechanism is set to "default", resolves the authMechanism
+   * based on the server version and server supported sasl mechanisms.
+   *
+   * @param hello - A hello response from the server
+   */
+  resolveAuthMechanism(hello: Document | null): MongoCredentials {
+    // If the mechanism is not "default", then it does not need to be resolved
+    if (this.mechanism.match(/DEFAULT/i)) {
+      return new MongoCredentials({
+        username: this.username,
+        password: this.password,
+        source: this.source,
+        mechanism: getDefaultAuthMechanism(hello),
+        mechanismProperties: this.mechanismProperties
+      });
+    }
+
+    return this;
+  }
+
+  validate(): void {
+    if (
+      (this.mechanism === AuthMechanism.MONGODB_GSSAPI ||
+        this.mechanism === AuthMechanism.MONGODB_PLAIN ||
+        this.mechanism === AuthMechanism.MONGODB_SCRAM_SHA1 ||
+        this.mechanism === AuthMechanism.MONGODB_SCRAM_SHA256) &&
+      !this.username
+    ) {
+      throw new MongoMissingCredentialsError(`Username required for mechanism '${this.mechanism}'`);
+    }
+
+    if (this.mechanism === AuthMechanism.MONGODB_OIDC) {
+      if (
+        this.username &&
+        this.mechanismProperties.ENVIRONMENT &&
+        this.mechanismProperties.ENVIRONMENT !== 'azure'
+      ) {
+        throw new MongoInvalidArgumentError(
+          `username and ENVIRONMENT '${this.mechanismProperties.ENVIRONMENT}' may not be used together for mechanism '${this.mechanism}'.`
+        );
+      }
+
+      if (this.username && this.password) {
+        throw new MongoInvalidArgumentError(
+          `No password is allowed in ENVIRONMENT '${this.mechanismProperties.ENVIRONMENT}' for '${this.mechanism}'.`
+        );
+      }
+
+      if (
+        (this.mechanismProperties.ENVIRONMENT === 'azure' ||
+          this.mechanismProperties.ENVIRONMENT === 'gcp') &&
+        !this.mechanismProperties.TOKEN_RESOURCE
+      ) {
+        throw new MongoInvalidArgumentError(TOKEN_RESOURCE_MISSING_ERROR);
+      }
+
+      if (
+        this.mechanismProperties.ENVIRONMENT &&
+        !ALLOWED_ENVIRONMENT_NAMES.includes(this.mechanismProperties.ENVIRONMENT)
+      ) {
+        throw new MongoInvalidArgumentError(
+          `Currently only a ENVIRONMENT in ${ALLOWED_ENVIRONMENT_NAMES.join(
+            ','
+          )} is supported for mechanism '${this.mechanism}'.`
+        );
+      }
+
+      if (
+        !this.mechanismProperties.ENVIRONMENT &&
+        !this.mechanismProperties.OIDC_CALLBACK &&
+        !this.mechanismProperties.OIDC_HUMAN_CALLBACK
+      ) {
+        throw new MongoInvalidArgumentError(
+          `Either a ENVIRONMENT, OIDC_CALLBACK, or OIDC_HUMAN_CALLBACK must be specified for mechanism '${this.mechanism}'.`
+        );
+      }
+
+      if (this.mechanismProperties.ALLOWED_HOSTS) {
+        const hosts = this.mechanismProperties.ALLOWED_HOSTS;
+        if (!Array.isArray(hosts)) {
+          throw new MongoInvalidArgumentError(ALLOWED_HOSTS_ERROR);
+        }
+        for (const host of hosts) {
+          if (typeof host !== 'string') {
+            throw new MongoInvalidArgumentError(ALLOWED_HOSTS_ERROR);
+          }
+        }
+      }
+    }
+
+    if (AUTH_MECHS_AUTH_SRC_EXTERNAL.has(this.mechanism)) {
+      if (this.source != null && this.source !== '$external') {
+        // TODO(NODE-3485): Replace this with a MongoAuthValidationError
+        throw new MongoAPIError(
+          `Invalid source '${this.source}' for mechanism '${this.mechanism}' specified.`
+        );
+      }
+    }
+
+    if (this.mechanism === AuthMechanism.MONGODB_PLAIN && this.source == null) {
+      // TODO(NODE-3485): Replace this with a MongoAuthValidationError
+      throw new MongoAPIError('PLAIN Authentication Mechanism needs an auth source');
+    }
+
+    if (this.mechanism === AuthMechanism.MONGODB_X509 && this.password != null) {
+      if (this.password === '') {
+        Reflect.set(this, 'password', undefined);
+        return;
+      }
+      // TODO(NODE-3485): Replace this with a MongoAuthValidationError
+      throw new MongoAPIError(`Password not allowed for mechanism MONGODB-X509`);
+    }
+
+    const canonicalization = this.mechanismProperties.CANONICALIZE_HOST_NAME ?? false;
+    if (!Object.values(GSSAPICanonicalizationValue).includes(canonicalization)) {
+      throw new MongoAPIError(`Invalid CANONICALIZE_HOST_NAME value: ${canonicalization}`);
+    }
+  }
+
+  static merge(
+    creds: MongoCredentials | undefined,
+    options: Partial<MongoCredentialsOptions>
+  ): MongoCredentials {
+    return new MongoCredentials({
+      username: options.username ?? creds?.username ?? '',
+      password: options.password ?? creds?.password ?? '',
+      mechanism: options.mechanism ?? creds?.mechanism ?? AuthMechanism.MONGODB_DEFAULT,
+      mechanismProperties: options.mechanismProperties ?? creds?.mechanismProperties ?? {},
+      source: options.source ?? options.db ?? creds?.source ?? 'admin'
+    });
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cmap/auth/mongodb_aws.ts b/backend/node_modules/mongodb/src/cmap/auth/mongodb_aws.ts
new file mode 100644
index 0000000..72859f4
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/auth/mongodb_aws.ts
@@ -0,0 +1,191 @@
+import type { Binary, BSONSerializeOptions } from '../../bson';
+import * as BSON from '../../bson';
+import { aws4 } from '../../deps';
+import {
+  MongoCompatibilityError,
+  MongoMissingCredentialsError,
+  MongoRuntimeError
+} from '../../error';
+import { ByteUtils, maxWireVersion, ns, randomBytes } from '../../utils';
+import { type AuthContext, AuthProvider } from './auth_provider';
+import {
+  AWSSDKCredentialProvider,
+  type AWSTempCredentials,
+  AWSTemporaryCredentialProvider,
+  LegacyAWSTemporaryCredentialProvider
+} from './aws_temporary_credentials';
+import { MongoCredentials } from './mongo_credentials';
+import { AuthMechanism } from './providers';
+
+const ASCII_N = 110;
+const bsonOptions: BSONSerializeOptions = {
+  useBigInt64: false,
+  promoteLongs: true,
+  promoteValues: true,
+  promoteBuffers: false,
+  bsonRegExp: false
+};
+
+interface AWSSaslContinuePayload {
+  a: string;
+  d: string;
+  t?: string;
+}
+
+export class MongoDBAWS extends AuthProvider {
+  private credentialFetcher: AWSTemporaryCredentialProvider;
+  constructor() {
+    super();
+
+    this.credentialFetcher = AWSTemporaryCredentialProvider.isAWSSDKInstalled
+      ? new AWSSDKCredentialProvider()
+      : new LegacyAWSTemporaryCredentialProvider();
+  }
+
+  override async auth(authContext: AuthContext): Promise<void> {
+    const { connection } = authContext;
+    if (!authContext.credentials) {
+      throw new MongoMissingCredentialsError('AuthContext must provide credentials.');
+    }
+
+    if ('kModuleError' in aws4) {
+      throw aws4['kModuleError'];
+    }
+    const { sign } = aws4;
+
+    if (maxWireVersion(connection) < 9) {
+      throw new MongoCompatibilityError(
+        'MONGODB-AWS authentication requires MongoDB version 4.4 or later'
+      );
+    }
+
+    if (!authContext.credentials.username) {
+      authContext.credentials = await makeTempCredentials(
+        authContext.credentials,
+        this.credentialFetcher
+      );
+    }
+
+    const { credentials } = authContext;
+
+    const accessKeyId = credentials.username;
+    const secretAccessKey = credentials.password;
+    // Allow the user to specify an AWS session token for authentication with temporary credentials.
+    const sessionToken = credentials.mechanismProperties.AWS_SESSION_TOKEN;
+
+    // If all three defined, include sessionToken, else include username and pass, else no credentials
+    const awsCredentials =
+      accessKeyId && secretAccessKey && sessionToken
+        ? { accessKeyId, secretAccessKey, sessionToken }
+        : accessKeyId && secretAccessKey
+          ? { accessKeyId, secretAccessKey }
+          : undefined;
+
+    const db = credentials.source;
+    const nonce = await randomBytes(32);
+
+    // All messages between MongoDB clients and servers are sent as BSON objects
+    // in the payload field of saslStart and saslContinue.
+    const saslStart = {
+      saslStart: 1,
+      mechanism: 'MONGODB-AWS',
+      payload: BSON.serialize({ r: nonce, p: ASCII_N }, bsonOptions)
+    };
+
+    const saslStartResponse = await connection.command(ns(`${db}.$cmd`), saslStart, undefined);
+
+    const serverResponse = BSON.deserialize(saslStartResponse.payload.buffer, bsonOptions) as {
+      s: Binary;
+      h: string;
+    };
+    const host = serverResponse.h;
+    const serverNonce = serverResponse.s.buffer;
+    if (serverNonce.length !== 64) {
+      // TODO(NODE-3483)
+      throw new MongoRuntimeError(`Invalid server nonce length ${serverNonce.length}, expected 64`);
+    }
+
+    if (!ByteUtils.equals(serverNonce.subarray(0, nonce.byteLength), nonce)) {
+      // throw because the serverNonce's leading 32 bytes must equal the client nonce's 32 bytes
+      // https://github.com/mongodb/specifications/blob/master/source/auth/auth.md#conversation-5
+
+      // TODO(NODE-3483)
+      throw new MongoRuntimeError('Server nonce does not begin with client nonce');
+    }
+
+    if (host.length < 1 || host.length > 255 || host.indexOf('..') !== -1) {
+      // TODO(NODE-3483)
+      throw new MongoRuntimeError(`Server returned an invalid host: "${host}"`);
+    }
+
+    const body = 'Action=GetCallerIdentity&Version=2011-06-15';
+    const options = sign(
+      {
+        method: 'POST',
+        host,
+        region: deriveRegion(serverResponse.h),
+        service: 'sts',
+        headers: {
+          'Content-Type': 'application/x-www-form-urlencoded',
+          'Content-Length': body.length,
+          'X-MongoDB-Server-Nonce': ByteUtils.toBase64(serverNonce),
+          'X-MongoDB-GS2-CB-Flag': 'n'
+        },
+        path: '/',
+        body
+      },
+      awsCredentials
+    );
+
+    const payload: AWSSaslContinuePayload = {
+      a: options.headers.Authorization,
+      d: options.headers['X-Amz-Date']
+    };
+
+    if (sessionToken) {
+      payload.t = sessionToken;
+    }
+
+    const saslContinue = {
+      saslContinue: 1,
+      conversationId: 1,
+      payload: BSON.serialize(payload, bsonOptions)
+    };
+
+    await connection.command(ns(`${db}.$cmd`), saslContinue, undefined);
+  }
+}
+
+async function makeTempCredentials(
+  credentials: MongoCredentials,
+  awsCredentialFetcher: AWSTemporaryCredentialProvider
+): Promise<MongoCredentials> {
+  function makeMongoCredentialsFromAWSTemp(creds: AWSTempCredentials) {
+    // The AWS session token (creds.Token) may or may not be set.
+    if (!creds.AccessKeyId || !creds.SecretAccessKey) {
+      throw new MongoMissingCredentialsError('Could not obtain temporary MONGODB-AWS credentials');
+    }
+
+    return new MongoCredentials({
+      username: creds.AccessKeyId,
+      password: creds.SecretAccessKey,
+      source: credentials.source,
+      mechanism: AuthMechanism.MONGODB_AWS,
+      mechanismProperties: {
+        AWS_SESSION_TOKEN: creds.Token
+      }
+    });
+  }
+  const temporaryCredentials = await awsCredentialFetcher.getCredentials();
+
+  return makeMongoCredentialsFromAWSTemp(temporaryCredentials);
+}
+
+function deriveRegion(host: string) {
+  const parts = host.split('.');
+  if (parts.length === 1 || parts[1] === 'amazonaws') {
+    return 'us-east-1';
+  }
+
+  return parts[1];
+}
diff --git a/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc.ts b/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc.ts
new file mode 100644
index 0000000..1cd249a
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc.ts
@@ -0,0 +1,180 @@
+import type { Document } from '../../bson';
+import { MongoInvalidArgumentError, MongoMissingCredentialsError } from '../../error';
+import type { HandshakeDocument } from '../connect';
+import type { Connection } from '../connection';
+import { type AuthContext, AuthProvider } from './auth_provider';
+import type { MongoCredentials } from './mongo_credentials';
+import { AzureMachineWorkflow } from './mongodb_oidc/azure_machine_workflow';
+import { GCPMachineWorkflow } from './mongodb_oidc/gcp_machine_workflow';
+import { K8SMachineWorkflow } from './mongodb_oidc/k8s_machine_workflow';
+import { TokenCache } from './mongodb_oidc/token_cache';
+import { TokenMachineWorkflow } from './mongodb_oidc/token_machine_workflow';
+
+/** Error when credentials are missing. */
+const MISSING_CREDENTIALS_ERROR = 'AuthContext must provide credentials.';
+
+/**
+ * The information returned by the server on the IDP server.
+ * @public
+ */
+export interface IdPInfo {
+  /**
+   * A URL which describes the Authentication Server. This identifier should
+   * be the iss of provided access tokens, and be viable for RFC8414 metadata
+   * discovery and RFC9207 identification.
+   */
+  issuer: string;
+  /** A unique client ID for this OIDC client. */
+  clientId: string;
+  /** A list of additional scopes to request from IdP. */
+  requestScopes?: string[];
+}
+
+/**
+ * The response from the IdP server with the access token and
+ * optional expiration time and refresh token.
+ * @public
+ */
+export interface IdPServerResponse {
+  /** The OIDC access token. */
+  accessToken: string;
+  /** The time when the access token expires. For future use. */
+  expiresInSeconds?: number;
+  /** The refresh token, if applicable, to be used by the callback to request a new token from the issuer. */
+  refreshToken?: string;
+}
+
+/**
+ * The response required to be returned from the machine or
+ * human callback workflows' callback.
+ * @public
+ */
+export interface OIDCResponse {
+  /** The OIDC access token. */
+  accessToken: string;
+  /** The time when the access token expires. For future use. */
+  expiresInSeconds?: number;
+  /** The refresh token, if applicable, to be used by the callback to request a new token from the issuer. */
+  refreshToken?: string;
+}
+
+/**
+ * The parameters that the driver provides to the user supplied
+ * human or machine callback.
+ *
+ * The version number is used to communicate callback API changes that are not breaking but that
+ * users may want to know about and review their implementation. Users may wish to check the version
+ * number and throw an error if their expected version number and the one provided do not match.
+ * @public
+ */
+export interface OIDCCallbackParams {
+  /** Optional username. */
+  username?: string;
+  /** The context in which to timeout the OIDC callback. */
+  timeoutContext: AbortSignal;
+  /** The current OIDC API version. */
+  version: 1;
+  /** The IdP information returned from the server. */
+  idpInfo?: IdPInfo;
+  /** The refresh token, if applicable, to be used by the callback to request a new token from the issuer. */
+  refreshToken?: string;
+}
+
+/**
+ * The signature of the human or machine callback functions.
+ * @public
+ */
+export type OIDCCallbackFunction = (params: OIDCCallbackParams) => Promise<OIDCResponse>;
+
+/** The current version of OIDC implementation. */
+export const OIDC_VERSION = 1;
+
+type EnvironmentName = 'test' | 'azure' | 'gcp' | 'k8s' | undefined;
+
+/** @internal */
+export interface Workflow {
+  /**
+   * All device workflows must implement this method in order to get the access
+   * token and then call authenticate with it.
+   */
+  execute(
+    connection: Connection,
+    credentials: MongoCredentials,
+    response?: Document
+  ): Promise<void>;
+
+  /**
+   * Each workflow should specify the correct custom behaviour for reauthentication.
+   */
+  reauthenticate(connection: Connection, credentials: MongoCredentials): Promise<void>;
+
+  /**
+   * Get the document to add for speculative authentication.
+   */
+  speculativeAuth(connection: Connection, credentials: MongoCredentials): Promise<Document>;
+}
+
+/** @internal */
+export const OIDC_WORKFLOWS: Map<EnvironmentName, () => Workflow> = new Map();
+OIDC_WORKFLOWS.set('test', () => new TokenMachineWorkflow(new TokenCache()));
+OIDC_WORKFLOWS.set('azure', () => new AzureMachineWorkflow(new TokenCache()));
+OIDC_WORKFLOWS.set('gcp', () => new GCPMachineWorkflow(new TokenCache()));
+OIDC_WORKFLOWS.set('k8s', () => new K8SMachineWorkflow(new TokenCache()));
+
+/**
+ * OIDC auth provider.
+ */
+export class MongoDBOIDC extends AuthProvider {
+  workflow: Workflow;
+
+  /**
+   * Instantiate the auth provider.
+   */
+  constructor(workflow?: Workflow) {
+    super();
+    if (!workflow) {
+      throw new MongoInvalidArgumentError('No workflow provided to the OIDC auth provider.');
+    }
+    this.workflow = workflow;
+  }
+
+  /**
+   * Authenticate using OIDC
+   */
+  override async auth(authContext: AuthContext): Promise<void> {
+    const { connection, reauthenticating, response } = authContext;
+    if (response?.speculativeAuthenticate?.done) {
+      return;
+    }
+    const credentials = getCredentials(authContext);
+    if (reauthenticating) {
+      await this.workflow.reauthenticate(connection, credentials);
+    } else {
+      await this.workflow.execute(connection, credentials, response);
+    }
+  }
+
+  /**
+   * Add the speculative auth for the initial handshake.
+   */
+  override async prepare(
+    handshakeDoc: HandshakeDocument,
+    authContext: AuthContext
+  ): Promise<HandshakeDocument> {
+    const { connection } = authContext;
+    const credentials = getCredentials(authContext);
+    const result = await this.workflow.speculativeAuth(connection, credentials);
+    return { ...handshakeDoc, ...result };
+  }
+}
+
+/**
+ * Get credentials from the auth context, throwing if they do not exist.
+ */
+function getCredentials(authContext: AuthContext): MongoCredentials {
+  const { credentials } = authContext;
+  if (!credentials) {
+    throw new MongoMissingCredentialsError(MISSING_CREDENTIALS_ERROR);
+  }
+  return credentials;
+}
diff --git a/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/automated_callback_workflow.ts b/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/automated_callback_workflow.ts
new file mode 100644
index 0000000..f98d87f
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/automated_callback_workflow.ts
@@ -0,0 +1,82 @@
+import { MONGODB_ERROR_CODES, MongoError, MongoOIDCError } from '../../../error';
+import { Timeout, TimeoutError } from '../../../timeout';
+import { type Connection } from '../../connection';
+import { type MongoCredentials } from '../mongo_credentials';
+import {
+  OIDC_VERSION,
+  type OIDCCallbackFunction,
+  type OIDCCallbackParams,
+  type OIDCResponse
+} from '../mongodb_oidc';
+import { AUTOMATED_TIMEOUT_MS, CallbackWorkflow } from './callback_workflow';
+import { type TokenCache } from './token_cache';
+
+/**
+ * Class implementing behaviour for the non human callback workflow.
+ * @internal
+ */
+export class AutomatedCallbackWorkflow extends CallbackWorkflow {
+  /**
+   * Instantiate the human callback workflow.
+   */
+  constructor(cache: TokenCache, callback: OIDCCallbackFunction) {
+    super(cache, callback);
+  }
+
+  /**
+   * Execute the OIDC callback workflow.
+   */
+  async execute(connection: Connection, credentials: MongoCredentials): Promise<void> {
+    // If there is a cached access token, try to authenticate with it. If
+    // authentication fails with an Authentication error (18),
+    // invalidate the access token, fetch a new access token, and try
+    // to authenticate again.
+    // If the server fails for any other reason, do not clear the cache.
+    if (this.cache.hasAccessToken) {
+      const token = this.cache.getAccessToken();
+      try {
+        return await this.finishAuthentication(connection, credentials, token);
+      } catch (error) {
+        if (
+          error instanceof MongoError &&
+          error.code === MONGODB_ERROR_CODES.AuthenticationFailed
+        ) {
+          this.cache.removeAccessToken();
+          return await this.execute(connection, credentials);
+        } else {
+          throw error;
+        }
+      }
+    }
+    const response = await this.fetchAccessToken(credentials);
+    this.cache.put(response);
+    connection.accessToken = response.accessToken;
+    await this.finishAuthentication(connection, credentials, response.accessToken);
+  }
+
+  /**
+   * Fetches the access token using the callback.
+   */
+  protected async fetchAccessToken(credentials: MongoCredentials): Promise<OIDCResponse> {
+    const controller = new AbortController();
+    const params: OIDCCallbackParams = {
+      timeoutContext: controller.signal,
+      version: OIDC_VERSION
+    };
+    if (credentials.username) {
+      params.username = credentials.username;
+    }
+    const timeout = Timeout.expires(AUTOMATED_TIMEOUT_MS);
+    try {
+      return await Promise.race([this.executeAndValidateCallback(params), timeout]);
+    } catch (error) {
+      if (TimeoutError.is(error)) {
+        controller.abort();
+        throw new MongoOIDCError(`OIDC callback timed out after ${AUTOMATED_TIMEOUT_MS}ms.`);
+      }
+      throw error;
+    } finally {
+      timeout.clear();
+    }
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/azure_machine_workflow.ts b/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/azure_machine_workflow.ts
new file mode 100644
index 0000000..1f41b8d
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/azure_machine_workflow.ts
@@ -0,0 +1,85 @@
+import { addAzureParams, AZURE_BASE_URL } from '../../../client-side-encryption/providers/azure';
+import { MongoAzureError } from '../../../error';
+import { get } from '../../../utils';
+import type { MongoCredentials } from '../mongo_credentials';
+import { type AccessToken, MachineWorkflow } from './machine_workflow';
+import { type TokenCache } from './token_cache';
+
+/** Azure request headers. */
+const AZURE_HEADERS = Object.freeze({ Metadata: 'true', Accept: 'application/json' });
+
+/** Invalid endpoint result error. */
+const ENDPOINT_RESULT_ERROR =
+  'Azure endpoint did not return a value with only access_token and expires_in properties';
+
+/** Error for when the token audience is missing in the environment. */
+const TOKEN_RESOURCE_MISSING_ERROR =
+  'TOKEN_RESOURCE must be set in the auth mechanism properties when ENVIRONMENT is azure.';
+
+/**
+ * Device workflow implementation for Azure.
+ *
+ * @internal
+ */
+export class AzureMachineWorkflow extends MachineWorkflow {
+  /**
+   * Instantiate the machine workflow.
+   */
+  constructor(cache: TokenCache) {
+    super(cache);
+  }
+
+  /**
+   * Get the token from the environment.
+   */
+  async getToken(credentials?: MongoCredentials): Promise<AccessToken> {
+    const tokenAudience = credentials?.mechanismProperties.TOKEN_RESOURCE;
+    const username = credentials?.username;
+    if (!tokenAudience) {
+      throw new MongoAzureError(TOKEN_RESOURCE_MISSING_ERROR);
+    }
+    const response = await getAzureTokenData(tokenAudience, username);
+    if (!isEndpointResultValid(response)) {
+      throw new MongoAzureError(ENDPOINT_RESULT_ERROR);
+    }
+    return response;
+  }
+}
+
+/**
+ * Hit the Azure endpoint to get the token data.
+ */
+async function getAzureTokenData(tokenAudience: string, username?: string): Promise<AccessToken> {
+  const url = new URL(AZURE_BASE_URL);
+  addAzureParams(url, tokenAudience, username);
+  const response = await get(url, {
+    headers: AZURE_HEADERS
+  });
+  if (response.status !== 200) {
+    throw new MongoAzureError(
+      `Status code ${response.status} returned from the Azure endpoint. Response body: ${response.body}`
+    );
+  }
+  const result = JSON.parse(response.body);
+  return {
+    access_token: result.access_token,
+    expires_in: Number(result.expires_in)
+  };
+}
+
+/**
+ * Determines if a result returned from the endpoint is valid.
+ * This means the result is not nullish, contains the access_token required field
+ * and the expires_in required field.
+ */
+function isEndpointResultValid(
+  token: unknown
+): token is { access_token: unknown; expires_in: unknown } {
+  if (token == null || typeof token !== 'object') return false;
+  return (
+    'access_token' in token &&
+    typeof token.access_token === 'string' &&
+    'expires_in' in token &&
+    typeof token.expires_in === 'number'
+  );
+}
diff --git a/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/callback_workflow.ts b/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/callback_workflow.ts
new file mode 100644
index 0000000..afa1b96
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/callback_workflow.ts
@@ -0,0 +1,188 @@
+import { setTimeout } from 'timers/promises';
+
+import { type Document } from '../../../bson';
+import { MongoMissingCredentialsError } from '../../../error';
+import { ns } from '../../../utils';
+import type { Connection } from '../../connection';
+import type { MongoCredentials } from '../mongo_credentials';
+import {
+  type OIDCCallbackFunction,
+  type OIDCCallbackParams,
+  type OIDCResponse,
+  type Workflow
+} from '../mongodb_oidc';
+import { finishCommandDocument, startCommandDocument } from './command_builders';
+import { type TokenCache } from './token_cache';
+
+/** 5 minutes in milliseconds */
+export const HUMAN_TIMEOUT_MS = 300000;
+/** 1 minute in milliseconds */
+export const AUTOMATED_TIMEOUT_MS = 60000;
+
+/** Properties allowed on results of callbacks. */
+const RESULT_PROPERTIES = ['accessToken', 'expiresInSeconds', 'refreshToken'];
+
+/** Error message when the callback result is invalid. */
+const CALLBACK_RESULT_ERROR =
+  'User provided OIDC callbacks must return a valid object with an accessToken.';
+
+/** The time to throttle callback calls. */
+const THROTTLE_MS = 100;
+
+/**
+ * OIDC implementation of a callback based workflow.
+ * @internal
+ */
+export abstract class CallbackWorkflow implements Workflow {
+  cache: TokenCache;
+  callback: OIDCCallbackFunction;
+  lastExecutionTime: number;
+
+  /**
+   * Instantiate the callback workflow.
+   */
+  constructor(cache: TokenCache, callback: OIDCCallbackFunction) {
+    this.cache = cache;
+    this.callback = this.withLock(callback);
+    this.lastExecutionTime = Date.now() - THROTTLE_MS;
+  }
+
+  /**
+   * Get the document to add for speculative authentication. This also needs
+   * to add a db field from the credentials source.
+   */
+  async speculativeAuth(connection: Connection, credentials: MongoCredentials): Promise<Document> {
+    // Check if the Client Cache has an access token.
+    // If it does, cache the access token in the Connection Cache and send a JwtStepRequest
+    // with the cached access token in the speculative authentication SASL payload.
+    if (this.cache.hasAccessToken) {
+      const accessToken = this.cache.getAccessToken();
+      connection.accessToken = accessToken;
+      const document = finishCommandDocument(accessToken);
+      document.db = credentials.source;
+      return { speculativeAuthenticate: document };
+    }
+    return {};
+  }
+
+  /**
+   * Reauthenticate the callback workflow. For this we invalidated the access token
+   * in the cache and run the authentication steps again. No initial handshake needs
+   * to be sent.
+   */
+  async reauthenticate(connection: Connection, credentials: MongoCredentials): Promise<void> {
+    if (this.cache.hasAccessToken) {
+      // Reauthentication implies the token has expired.
+      if (connection.accessToken === this.cache.getAccessToken()) {
+        // If connection's access token is the same as the cache's, remove
+        // the token from the cache and connection.
+        this.cache.removeAccessToken();
+        delete connection.accessToken;
+      } else {
+        // If the connection's access token is different from the cache's, set
+        // the cache's token on the connection and do not remove from the
+        // cache.
+        connection.accessToken = this.cache.getAccessToken();
+      }
+    }
+    await this.execute(connection, credentials);
+  }
+
+  /**
+   * Execute the OIDC callback workflow.
+   */
+  abstract execute(
+    connection: Connection,
+    credentials: MongoCredentials,
+    response?: Document
+  ): Promise<void>;
+
+  /**
+   * Starts the callback authentication process. If there is a speculative
+   * authentication document from the initial handshake, then we will use that
+   * value to get the issuer, otherwise we will send the saslStart command.
+   */
+  protected async startAuthentication(
+    connection: Connection,
+    credentials: MongoCredentials,
+    response?: Document
+  ): Promise<Document> {
+    let result;
+    if (response?.speculativeAuthenticate) {
+      result = response.speculativeAuthenticate;
+    } else {
+      result = await connection.command(
+        ns(credentials.source),
+        startCommandDocument(credentials),
+        undefined
+      );
+    }
+    return result;
+  }
+
+  /**
+   * Finishes the callback authentication process.
+   */
+  protected async finishAuthentication(
+    connection: Connection,
+    credentials: MongoCredentials,
+    token: string,
+    conversationId?: number
+  ): Promise<void> {
+    await connection.command(
+      ns(credentials.source),
+      finishCommandDocument(token, conversationId),
+      undefined
+    );
+  }
+
+  /**
+   * Executes the callback and validates the output.
+   */
+  protected async executeAndValidateCallback(params: OIDCCallbackParams): Promise<OIDCResponse> {
+    const result = await this.callback(params);
+    // Validate that the result returned by the callback is acceptable. If it is not
+    // we must clear the token result from the cache.
+    if (isCallbackResultInvalid(result)) {
+      throw new MongoMissingCredentialsError(CALLBACK_RESULT_ERROR);
+    }
+    return result;
+  }
+
+  /**
+   * Ensure the callback is only executed one at a time and throttles the calls
+   * to every 100ms.
+   */
+  protected withLock(callback: OIDCCallbackFunction): OIDCCallbackFunction {
+    let lock: Promise<any> = Promise.resolve();
+    return async (params: OIDCCallbackParams): Promise<OIDCResponse> => {
+      // We do this to ensure that we would never return the result of the
+      // previous lock, only the current callback's value would get returned.
+      await lock;
+      lock = lock
+
+        .catch(() => null)
+
+        .then(async () => {
+          const difference = Date.now() - this.lastExecutionTime;
+          if (difference <= THROTTLE_MS) {
+            await setTimeout(THROTTLE_MS - difference, { signal: params.timeoutContext });
+          }
+          this.lastExecutionTime = Date.now();
+          return await callback(params);
+        });
+      return await lock;
+    };
+  }
+}
+
+/**
+ * Determines if a result returned from a request or refresh callback
+ * function is invalid. This means the result is nullish, doesn't contain
+ * the accessToken required field, and does not contain extra fields.
+ */
+function isCallbackResultInvalid(tokenResult: unknown): boolean {
+  if (tokenResult == null || typeof tokenResult !== 'object') return true;
+  if (!('accessToken' in tokenResult)) return true;
+  return !Object.getOwnPropertyNames(tokenResult).every(prop => RESULT_PROPERTIES.includes(prop));
+}
diff --git a/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/command_builders.ts b/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/command_builders.ts
new file mode 100644
index 0000000..da0c09c
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/command_builders.ts
@@ -0,0 +1,53 @@
+import { Binary, BSON, type Document } from '../../../bson';
+import { type MongoCredentials } from '../mongo_credentials';
+import { AuthMechanism } from '../providers';
+
+/** @internal */
+export interface OIDCCommand {
+  saslStart?: number;
+  saslContinue?: number;
+  conversationId?: number;
+  mechanism?: string;
+  autoAuthorize?: number;
+  db?: string;
+  payload: Binary;
+}
+
+/**
+ * Generate the finishing command document for authentication. Will be a
+ * saslStart or saslContinue depending on the presence of a conversation id.
+ */
+export function finishCommandDocument(token: string, conversationId?: number): OIDCCommand {
+  if (conversationId != null) {
+    return {
+      saslContinue: 1,
+      conversationId: conversationId,
+      payload: new Binary(BSON.serialize({ jwt: token }))
+    };
+  }
+  // saslContinue requires a conversationId in the command to be valid so in this
+  // case the server allows "step two" to actually be a saslStart with the token
+  // as the jwt since the use of the cached value has no correlating conversating
+  // on the particular connection.
+  return {
+    saslStart: 1,
+    mechanism: AuthMechanism.MONGODB_OIDC,
+    payload: new Binary(BSON.serialize({ jwt: token }))
+  };
+}
+
+/**
+ * Generate the saslStart command document.
+ */
+export function startCommandDocument(credentials: MongoCredentials): OIDCCommand {
+  const payload: Document = {};
+  if (credentials.username) {
+    payload.n = credentials.username;
+  }
+  return {
+    saslStart: 1,
+    autoAuthorize: 1,
+    mechanism: AuthMechanism.MONGODB_OIDC,
+    payload: new Binary(BSON.serialize(payload))
+  };
+}
diff --git a/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/gcp_machine_workflow.ts b/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/gcp_machine_workflow.ts
new file mode 100644
index 0000000..6b8c1ee
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/gcp_machine_workflow.ts
@@ -0,0 +1,53 @@
+import { MongoGCPError } from '../../../error';
+import { get } from '../../../utils';
+import { type MongoCredentials } from '../mongo_credentials';
+import { type AccessToken, MachineWorkflow } from './machine_workflow';
+import { type TokenCache } from './token_cache';
+
+/** GCP base URL. */
+const GCP_BASE_URL =
+  'http://metadata/computeMetadata/v1/instance/service-accounts/default/identity';
+
+/** GCP request headers. */
+const GCP_HEADERS = Object.freeze({ 'Metadata-Flavor': 'Google' });
+
+/** Error for when the token audience is missing in the environment. */
+const TOKEN_RESOURCE_MISSING_ERROR =
+  'TOKEN_RESOURCE must be set in the auth mechanism properties when ENVIRONMENT is gcp.';
+
+export class GCPMachineWorkflow extends MachineWorkflow {
+  /**
+   * Instantiate the machine workflow.
+   */
+  constructor(cache: TokenCache) {
+    super(cache);
+  }
+
+  /**
+   * Get the token from the environment.
+   */
+  async getToken(credentials?: MongoCredentials): Promise<AccessToken> {
+    const tokenAudience = credentials?.mechanismProperties.TOKEN_RESOURCE;
+    if (!tokenAudience) {
+      throw new MongoGCPError(TOKEN_RESOURCE_MISSING_ERROR);
+    }
+    return await getGcpTokenData(tokenAudience);
+  }
+}
+
+/**
+ * Hit the GCP endpoint to get the token data.
+ */
+async function getGcpTokenData(tokenAudience: string): Promise<AccessToken> {
+  const url = new URL(GCP_BASE_URL);
+  url.searchParams.append('audience', tokenAudience);
+  const response = await get(url, {
+    headers: GCP_HEADERS
+  });
+  if (response.status !== 200) {
+    throw new MongoGCPError(
+      `Status code ${response.status} returned from the GCP endpoint. Response body: ${response.body}`
+    );
+  }
+  return { access_token: response.body };
+}
diff --git a/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/human_callback_workflow.ts b/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/human_callback_workflow.ts
new file mode 100644
index 0000000..a162ce0
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/human_callback_workflow.ts
@@ -0,0 +1,141 @@
+import { BSON } from '../../../bson';
+import { MONGODB_ERROR_CODES, MongoError, MongoOIDCError } from '../../../error';
+import { Timeout, TimeoutError } from '../../../timeout';
+import { type Connection } from '../../connection';
+import { type MongoCredentials } from '../mongo_credentials';
+import {
+  type IdPInfo,
+  OIDC_VERSION,
+  type OIDCCallbackFunction,
+  type OIDCCallbackParams,
+  type OIDCResponse
+} from '../mongodb_oidc';
+import { CallbackWorkflow, HUMAN_TIMEOUT_MS } from './callback_workflow';
+import { type TokenCache } from './token_cache';
+
+/**
+ * Class implementing behaviour for the non human callback workflow.
+ * @internal
+ */
+export class HumanCallbackWorkflow extends CallbackWorkflow {
+  /**
+   * Instantiate the human callback workflow.
+   */
+  constructor(cache: TokenCache, callback: OIDCCallbackFunction) {
+    super(cache, callback);
+  }
+
+  /**
+   * Execute the OIDC human callback workflow.
+   */
+  async execute(connection: Connection, credentials: MongoCredentials): Promise<void> {
+    // Check if the Client Cache has an access token.
+    // If it does, cache the access token in the Connection Cache and perform a One-Step SASL conversation
+    // using the access token. If the server returns an Authentication error (18),
+    // invalidate the access token token from the Client Cache, clear the Connection Cache,
+    // and restart the authentication flow. Raise any other errors to the user. On success, exit the algorithm.
+    if (this.cache.hasAccessToken) {
+      const token = this.cache.getAccessToken();
+      connection.accessToken = token;
+      try {
+        return await this.finishAuthentication(connection, credentials, token);
+      } catch (error) {
+        if (
+          error instanceof MongoError &&
+          error.code === MONGODB_ERROR_CODES.AuthenticationFailed
+        ) {
+          this.cache.removeAccessToken();
+          delete connection.accessToken;
+          return await this.execute(connection, credentials);
+        } else {
+          throw error;
+        }
+      }
+    }
+    // Check if the Client Cache has a refresh token.
+    // If it does, call the OIDC Human Callback with the cached refresh token and IdpInfo to get a
+    // new access token. Cache the new access token in the Client Cache and Connection Cache.
+    // Perform a One-Step SASL conversation using the new access token. If the the server returns
+    // an Authentication error (18), clear the refresh token, invalidate the access token from the
+    // Client Cache, clear the Connection Cache, and restart the authentication flow. Raise any other
+    // errors to the user. On success, exit the algorithm.
+    if (this.cache.hasRefreshToken) {
+      const refreshToken = this.cache.getRefreshToken();
+      const result = await this.fetchAccessToken(
+        this.cache.getIdpInfo(),
+        credentials,
+        refreshToken
+      );
+      this.cache.put(result);
+      connection.accessToken = result.accessToken;
+      try {
+        return await this.finishAuthentication(connection, credentials, result.accessToken);
+      } catch (error) {
+        if (
+          error instanceof MongoError &&
+          error.code === MONGODB_ERROR_CODES.AuthenticationFailed
+        ) {
+          this.cache.removeRefreshToken();
+          delete connection.accessToken;
+          return await this.execute(connection, credentials);
+        } else {
+          throw error;
+        }
+      }
+    }
+
+    // Start a new Two-Step SASL conversation.
+    // Run a PrincipalStepRequest to get the IdpInfo.
+    // Call the OIDC Human Callback with the new IdpInfo to get a new access token and optional refresh
+    // token. Drivers MUST NOT pass a cached refresh token to the callback when performing
+    // a new Two-Step conversation. Cache the new IdpInfo and refresh token in the Client Cache and the
+    // new access token in the Client Cache and Connection Cache.
+    // Attempt to authenticate using a JwtStepRequest with the new access token. Raise any errors to the user.
+    const startResponse = await this.startAuthentication(connection, credentials);
+    const conversationId = startResponse.conversationId;
+    const idpInfo = BSON.deserialize(startResponse.payload.buffer) as IdPInfo;
+    const callbackResponse = await this.fetchAccessToken(idpInfo, credentials);
+    this.cache.put(callbackResponse, idpInfo);
+    connection.accessToken = callbackResponse.accessToken;
+    return await this.finishAuthentication(
+      connection,
+      credentials,
+      callbackResponse.accessToken,
+      conversationId
+    );
+  }
+
+  /**
+   * Fetches an access token using the callback.
+   */
+  private async fetchAccessToken(
+    idpInfo: IdPInfo,
+    credentials: MongoCredentials,
+    refreshToken?: string
+  ): Promise<OIDCResponse> {
+    const controller = new AbortController();
+    const params: OIDCCallbackParams = {
+      timeoutContext: controller.signal,
+      version: OIDC_VERSION,
+      idpInfo: idpInfo
+    };
+    if (credentials.username) {
+      params.username = credentials.username;
+    }
+    if (refreshToken) {
+      params.refreshToken = refreshToken;
+    }
+    const timeout = Timeout.expires(HUMAN_TIMEOUT_MS);
+    try {
+      return await Promise.race([this.executeAndValidateCallback(params), timeout]);
+    } catch (error) {
+      if (TimeoutError.is(error)) {
+        controller.abort();
+        throw new MongoOIDCError(`OIDC callback timed out after ${HUMAN_TIMEOUT_MS}ms.`);
+      }
+      throw error;
+    } finally {
+      timeout.clear();
+    }
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/k8s_machine_workflow.ts b/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/k8s_machine_workflow.ts
new file mode 100644
index 0000000..22dc9cb
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/k8s_machine_workflow.ts
@@ -0,0 +1,38 @@
+import { readFile } from 'fs/promises';
+
+import { type AccessToken, MachineWorkflow } from './machine_workflow';
+import { type TokenCache } from './token_cache';
+
+/** The fallback file name */
+const FALLBACK_FILENAME = '/var/run/secrets/kubernetes.io/serviceaccount/token';
+
+/** The azure environment variable for the file name. */
+const AZURE_FILENAME = 'AZURE_FEDERATED_TOKEN_FILE';
+
+/** The AWS environment variable for the file name. */
+const AWS_FILENAME = 'AWS_WEB_IDENTITY_TOKEN_FILE';
+
+export class K8SMachineWorkflow extends MachineWorkflow {
+  /**
+   * Instantiate the machine workflow.
+   */
+  constructor(cache: TokenCache) {
+    super(cache);
+  }
+
+  /**
+   * Get the token from the environment.
+   */
+  async getToken(): Promise<AccessToken> {
+    let filename: string;
+    if (process.env[AZURE_FILENAME]) {
+      filename = process.env[AZURE_FILENAME];
+    } else if (process.env[AWS_FILENAME]) {
+      filename = process.env[AWS_FILENAME];
+    } else {
+      filename = FALLBACK_FILENAME;
+    }
+    const token = await readFile(filename, 'utf8');
+    return { access_token: token };
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/machine_workflow.ts b/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/machine_workflow.ts
new file mode 100644
index 0000000..7a0fd96
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/machine_workflow.ts
@@ -0,0 +1,137 @@
+import { setTimeout } from 'timers/promises';
+
+import { type Document } from '../../../bson';
+import { ns } from '../../../utils';
+import type { Connection } from '../../connection';
+import type { MongoCredentials } from '../mongo_credentials';
+import type { Workflow } from '../mongodb_oidc';
+import { finishCommandDocument } from './command_builders';
+import { type TokenCache } from './token_cache';
+
+/** The time to throttle callback calls. */
+const THROTTLE_MS = 100;
+
+/**
+ * The access token format.
+ * @internal
+ */
+export interface AccessToken {
+  access_token: string;
+  expires_in?: number;
+}
+
+/** @internal */
+export type OIDCTokenFunction = (credentials: MongoCredentials) => Promise<AccessToken>;
+
+/**
+ * Common behaviour for OIDC machine workflows.
+ * @internal
+ */
+export abstract class MachineWorkflow implements Workflow {
+  cache: TokenCache;
+  callback: OIDCTokenFunction;
+  lastExecutionTime: number;
+
+  /**
+   * Instantiate the machine workflow.
+   */
+  constructor(cache: TokenCache) {
+    this.cache = cache;
+    this.callback = this.withLock(this.getToken.bind(this));
+    this.lastExecutionTime = Date.now() - THROTTLE_MS;
+  }
+
+  /**
+   * Execute the workflow. Gets the token from the subclass implementation.
+   */
+  async execute(connection: Connection, credentials: MongoCredentials): Promise<void> {
+    const token = await this.getTokenFromCacheOrEnv(connection, credentials);
+    const command = finishCommandDocument(token);
+    await connection.command(ns(credentials.source), command, undefined);
+  }
+
+  /**
+   * Reauthenticate on a machine workflow just grabs the token again since the server
+   * has said the current access token is invalid or expired.
+   */
+  async reauthenticate(connection: Connection, credentials: MongoCredentials): Promise<void> {
+    if (this.cache.hasAccessToken) {
+      // Reauthentication implies the token has expired.
+      if (connection.accessToken === this.cache.getAccessToken()) {
+        // If connection's access token is the same as the cache's, remove
+        // the token from the cache and connection.
+        this.cache.removeAccessToken();
+        delete connection.accessToken;
+      } else {
+        // If the connection's access token is different from the cache's, set
+        // the cache's token on the connection and do not remove from the
+        // cache.
+        connection.accessToken = this.cache.getAccessToken();
+      }
+    }
+    await this.execute(connection, credentials);
+  }
+
+  /**
+   * Get the document to add for speculative authentication.
+   */
+  async speculativeAuth(connection: Connection, credentials: MongoCredentials): Promise<Document> {
+    // The spec states only cached access tokens can use speculative auth.
+    if (!this.cache.hasAccessToken) {
+      return {};
+    }
+    const token = await this.getTokenFromCacheOrEnv(connection, credentials);
+    const document = finishCommandDocument(token);
+    document.db = credentials.source;
+    return { speculativeAuthenticate: document };
+  }
+
+  /**
+   * Get the token from the cache or environment.
+   */
+  private async getTokenFromCacheOrEnv(
+    connection: Connection,
+    credentials: MongoCredentials
+  ): Promise<string> {
+    if (this.cache.hasAccessToken) {
+      return this.cache.getAccessToken();
+    } else {
+      const token = await this.callback(credentials);
+      this.cache.put({ accessToken: token.access_token, expiresInSeconds: token.expires_in });
+      // Put the access token on the connection as well.
+      connection.accessToken = token.access_token;
+      return token.access_token;
+    }
+  }
+
+  /**
+   * Ensure the callback is only executed one at a time, and throttled to
+   * only once per 100ms.
+   */
+  private withLock(callback: OIDCTokenFunction): OIDCTokenFunction {
+    let lock: Promise<any> = Promise.resolve();
+    return async (credentials: MongoCredentials): Promise<AccessToken> => {
+      // We do this to ensure that we would never return the result of the
+      // previous lock, only the current callback's value would get returned.
+      await lock;
+      lock = lock
+
+        .catch(() => null)
+
+        .then(async () => {
+          const difference = Date.now() - this.lastExecutionTime;
+          if (difference <= THROTTLE_MS) {
+            await setTimeout(THROTTLE_MS - difference);
+          }
+          this.lastExecutionTime = Date.now();
+          return await callback(credentials);
+        });
+      return await lock;
+    };
+  }
+
+  /**
+   * Get the token from the environment or endpoint.
+   */
+  abstract getToken(credentials: MongoCredentials): Promise<AccessToken>;
+}
diff --git a/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/token_cache.ts b/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/token_cache.ts
new file mode 100644
index 0000000..e2f7ad4
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/token_cache.ts
@@ -0,0 +1,62 @@
+import { MongoDriverError } from '../../../error';
+import type { IdPInfo, OIDCResponse } from '../mongodb_oidc';
+
+class MongoOIDCError extends MongoDriverError {}
+
+/** @internal */
+export class TokenCache {
+  private accessToken?: string;
+  private refreshToken?: string;
+  private idpInfo?: IdPInfo;
+  private expiresInSeconds?: number;
+
+  get hasAccessToken(): boolean {
+    return !!this.accessToken;
+  }
+
+  get hasRefreshToken(): boolean {
+    return !!this.refreshToken;
+  }
+
+  get hasIdpInfo(): boolean {
+    return !!this.idpInfo;
+  }
+
+  getAccessToken(): string {
+    if (!this.accessToken) {
+      throw new MongoOIDCError('Attempted to get an access token when none exists.');
+    }
+    return this.accessToken;
+  }
+
+  getRefreshToken(): string {
+    if (!this.refreshToken) {
+      throw new MongoOIDCError('Attempted to get a refresh token when none exists.');
+    }
+    return this.refreshToken;
+  }
+
+  getIdpInfo(): IdPInfo {
+    if (!this.idpInfo) {
+      throw new MongoOIDCError('Attempted to get IDP information when none exists.');
+    }
+    return this.idpInfo;
+  }
+
+  put(response: OIDCResponse, idpInfo?: IdPInfo) {
+    this.accessToken = response.accessToken;
+    this.refreshToken = response.refreshToken;
+    this.expiresInSeconds = response.expiresInSeconds;
+    if (idpInfo) {
+      this.idpInfo = idpInfo;
+    }
+  }
+
+  removeAccessToken() {
+    this.accessToken = undefined;
+  }
+
+  removeRefreshToken() {
+    this.refreshToken = undefined;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/token_machine_workflow.ts b/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/token_machine_workflow.ts
new file mode 100644
index 0000000..de32c46
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/auth/mongodb_oidc/token_machine_workflow.ts
@@ -0,0 +1,34 @@
+import * as fs from 'fs';
+
+import { MongoAWSError } from '../../../error';
+import { type AccessToken, MachineWorkflow } from './machine_workflow';
+import { type TokenCache } from './token_cache';
+
+/** Error for when the token is missing in the environment. */
+const TOKEN_MISSING_ERROR = 'OIDC_TOKEN_FILE must be set in the environment.';
+
+/**
+ * Device workflow implementation for AWS.
+ *
+ * @internal
+ */
+export class TokenMachineWorkflow extends MachineWorkflow {
+  /**
+   * Instantiate the machine workflow.
+   */
+  constructor(cache: TokenCache) {
+    super(cache);
+  }
+
+  /**
+   * Get the token from the environment.
+   */
+  async getToken(): Promise<AccessToken> {
+    const tokenFile = process.env.OIDC_TOKEN_FILE;
+    if (!tokenFile) {
+      throw new MongoAWSError(TOKEN_MISSING_ERROR);
+    }
+    const token = await fs.promises.readFile(tokenFile, 'utf8');
+    return { access_token: token };
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cmap/auth/plain.ts b/backend/node_modules/mongodb/src/cmap/auth/plain.ts
new file mode 100644
index 0000000..f5a4386
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/auth/plain.ts
@@ -0,0 +1,25 @@
+import { Binary } from '../../bson';
+import { MongoMissingCredentialsError } from '../../error';
+import { ns } from '../../utils';
+import { type AuthContext, AuthProvider } from './auth_provider';
+
+export class Plain extends AuthProvider {
+  override async auth(authContext: AuthContext): Promise<void> {
+    const { connection, credentials } = authContext;
+    if (!credentials) {
+      throw new MongoMissingCredentialsError('AuthContext must provide credentials.');
+    }
+
+    const { username, password } = credentials;
+
+    const payload = new Binary(Buffer.from(`\x00${username}\x00${password}`));
+    const command = {
+      saslStart: 1,
+      mechanism: 'PLAIN',
+      payload: payload,
+      autoAuthorize: 1
+    };
+
+    await connection.command(ns('$external.$cmd'), command, undefined);
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cmap/auth/providers.ts b/backend/node_modules/mongodb/src/cmap/auth/providers.ts
new file mode 100644
index 0000000..74e3638
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/auth/providers.ts
@@ -0,0 +1,23 @@
+/** @public */
+export const AuthMechanism = Object.freeze({
+  MONGODB_AWS: 'MONGODB-AWS',
+  MONGODB_CR: 'MONGODB-CR',
+  MONGODB_DEFAULT: 'DEFAULT',
+  MONGODB_GSSAPI: 'GSSAPI',
+  MONGODB_PLAIN: 'PLAIN',
+  MONGODB_SCRAM_SHA1: 'SCRAM-SHA-1',
+  MONGODB_SCRAM_SHA256: 'SCRAM-SHA-256',
+  MONGODB_X509: 'MONGODB-X509',
+  MONGODB_OIDC: 'MONGODB-OIDC'
+} as const);
+
+/** @public */
+export type AuthMechanism = (typeof AuthMechanism)[keyof typeof AuthMechanism];
+
+/** @internal */
+export const AUTH_MECHS_AUTH_SRC_EXTERNAL = new Set<AuthMechanism>([
+  AuthMechanism.MONGODB_GSSAPI,
+  AuthMechanism.MONGODB_AWS,
+  AuthMechanism.MONGODB_OIDC,
+  AuthMechanism.MONGODB_X509
+]);
diff --git a/backend/node_modules/mongodb/src/cmap/auth/scram.ts b/backend/node_modules/mongodb/src/cmap/auth/scram.ts
new file mode 100644
index 0000000..b10b200
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/auth/scram.ts
@@ -0,0 +1,344 @@
+import { saslprep } from '@mongodb-js/saslprep';
+import * as crypto from 'crypto';
+
+import { Binary, type Document } from '../../bson';
+import {
+  MongoInvalidArgumentError,
+  MongoMissingCredentialsError,
+  MongoRuntimeError
+} from '../../error';
+import { ns, randomBytes } from '../../utils';
+import type { HandshakeDocument } from '../connect';
+import { type AuthContext, AuthProvider } from './auth_provider';
+import type { MongoCredentials } from './mongo_credentials';
+import { AuthMechanism } from './providers';
+
+type CryptoMethod = 'sha1' | 'sha256';
+
+class ScramSHA extends AuthProvider {
+  cryptoMethod: CryptoMethod;
+
+  constructor(cryptoMethod: CryptoMethod) {
+    super();
+    this.cryptoMethod = cryptoMethod || 'sha1';
+  }
+
+  override async prepare(
+    handshakeDoc: HandshakeDocument,
+    authContext: AuthContext
+  ): Promise<HandshakeDocument> {
+    const cryptoMethod = this.cryptoMethod;
+    const credentials = authContext.credentials;
+    if (!credentials) {
+      throw new MongoMissingCredentialsError('AuthContext must provide credentials.');
+    }
+
+    const nonce = await randomBytes(24);
+    // store the nonce for later use
+    authContext.nonce = nonce;
+
+    const request = {
+      ...handshakeDoc,
+      speculativeAuthenticate: {
+        ...makeFirstMessage(cryptoMethod, credentials, nonce),
+        db: credentials.source
+      }
+    };
+
+    return request;
+  }
+
+  override async auth(authContext: AuthContext) {
+    const { reauthenticating, response } = authContext;
+    if (response?.speculativeAuthenticate && !reauthenticating) {
+      return await continueScramConversation(
+        this.cryptoMethod,
+        response.speculativeAuthenticate,
+        authContext
+      );
+    }
+    return await executeScram(this.cryptoMethod, authContext);
+  }
+}
+
+function cleanUsername(username: string) {
+  return username.replace('=', '=3D').replace(',', '=2C');
+}
+
+function clientFirstMessageBare(username: string, nonce: Buffer) {
+  // NOTE: This is done b/c Javascript uses UTF-16, but the server is hashing in UTF-8.
+  // Since the username is not sasl-prep-d, we need to do this here.
+  return Buffer.concat([
+    Buffer.from('n=', 'utf8'),
+    Buffer.from(username, 'utf8'),
+    Buffer.from(',r=', 'utf8'),
+    Buffer.from(nonce.toString('base64'), 'utf8')
+  ]);
+}
+
+function makeFirstMessage(
+  cryptoMethod: CryptoMethod,
+  credentials: MongoCredentials,
+  nonce: Buffer
+) {
+  const username = cleanUsername(credentials.username);
+  const mechanism =
+    cryptoMethod === 'sha1' ? AuthMechanism.MONGODB_SCRAM_SHA1 : AuthMechanism.MONGODB_SCRAM_SHA256;
+
+  // NOTE: This is done b/c Javascript uses UTF-16, but the server is hashing in UTF-8.
+  // Since the username is not sasl-prep-d, we need to do this here.
+  return {
+    saslStart: 1,
+    mechanism,
+    payload: new Binary(
+      Buffer.concat([Buffer.from('n,,', 'utf8'), clientFirstMessageBare(username, nonce)])
+    ),
+    autoAuthorize: 1,
+    options: { skipEmptyExchange: true }
+  };
+}
+
+async function executeScram(cryptoMethod: CryptoMethod, authContext: AuthContext): Promise<void> {
+  const { connection, credentials } = authContext;
+  if (!credentials) {
+    throw new MongoMissingCredentialsError('AuthContext must provide credentials.');
+  }
+  if (!authContext.nonce) {
+    throw new MongoInvalidArgumentError('AuthContext must contain a valid nonce property');
+  }
+  const nonce = authContext.nonce;
+  const db = credentials.source;
+
+  const saslStartCmd = makeFirstMessage(cryptoMethod, credentials, nonce);
+  const response = await connection.command(ns(`${db}.$cmd`), saslStartCmd, undefined);
+  await continueScramConversation(cryptoMethod, response, authContext);
+}
+
+async function continueScramConversation(
+  cryptoMethod: CryptoMethod,
+  response: Document,
+  authContext: AuthContext
+): Promise<void> {
+  const connection = authContext.connection;
+  const credentials = authContext.credentials;
+  if (!credentials) {
+    throw new MongoMissingCredentialsError('AuthContext must provide credentials.');
+  }
+  if (!authContext.nonce) {
+    throw new MongoInvalidArgumentError('Unable to continue SCRAM without valid nonce');
+  }
+  const nonce = authContext.nonce;
+
+  const db = credentials.source;
+  const username = cleanUsername(credentials.username);
+  const password = credentials.password;
+
+  const processedPassword =
+    cryptoMethod === 'sha256' ? saslprep(password) : passwordDigest(username, password);
+
+  const payload: Binary = Buffer.isBuffer(response.payload)
+    ? new Binary(response.payload)
+    : response.payload;
+
+  const dict = parsePayload(payload);
+
+  const iterations = parseInt(dict.i, 10);
+  if (iterations && iterations < 4096) {
+    // TODO(NODE-3483)
+    throw new MongoRuntimeError(`Server returned an invalid iteration count ${iterations}`);
+  }
+
+  const salt = dict.s;
+  const rnonce = dict.r;
+  if (rnonce.startsWith('nonce')) {
+    // TODO(NODE-3483)
+    throw new MongoRuntimeError(`Server returned an invalid nonce: ${rnonce}`);
+  }
+
+  // Set up start of proof
+  const withoutProof = `c=biws,r=${rnonce}`;
+  const saltedPassword = HI(
+    processedPassword,
+    Buffer.from(salt, 'base64'),
+    iterations,
+    cryptoMethod
+  );
+
+  const clientKey = HMAC(cryptoMethod, saltedPassword, 'Client Key');
+  const serverKey = HMAC(cryptoMethod, saltedPassword, 'Server Key');
+  const storedKey = H(cryptoMethod, clientKey);
+  const authMessage = [
+    clientFirstMessageBare(username, nonce),
+    payload.toString('utf8'),
+    withoutProof
+  ].join(',');
+
+  const clientSignature = HMAC(cryptoMethod, storedKey, authMessage);
+  const clientProof = `p=${xor(clientKey, clientSignature)}`;
+  const clientFinal = [withoutProof, clientProof].join(',');
+
+  const serverSignature = HMAC(cryptoMethod, serverKey, authMessage);
+  const saslContinueCmd = {
+    saslContinue: 1,
+    conversationId: response.conversationId,
+    payload: new Binary(Buffer.from(clientFinal))
+  };
+
+  const r = await connection.command(ns(`${db}.$cmd`), saslContinueCmd, undefined);
+  const parsedResponse = parsePayload(r.payload);
+
+  if (!compareDigest(Buffer.from(parsedResponse.v, 'base64'), serverSignature)) {
+    throw new MongoRuntimeError('Server returned an invalid signature');
+  }
+
+  if (r.done !== false) {
+    // If the server sends r.done === true we can save one RTT
+    return;
+  }
+
+  const retrySaslContinueCmd = {
+    saslContinue: 1,
+    conversationId: r.conversationId,
+    payload: Buffer.alloc(0)
+  };
+
+  await connection.command(ns(`${db}.$cmd`), retrySaslContinueCmd, undefined);
+}
+
+function parsePayload(payload: Binary) {
+  const payloadStr = payload.toString('utf8');
+  const dict: Document = {};
+  const parts = payloadStr.split(',');
+  for (let i = 0; i < parts.length; i++) {
+    const valueParts = (parts[i].match(/^([^=]*)=(.*)$/) ?? []).slice(1);
+    dict[valueParts[0]] = valueParts[1];
+  }
+  return dict;
+}
+
+function passwordDigest(username: string, password: string) {
+  if (typeof username !== 'string') {
+    throw new MongoInvalidArgumentError('Username must be a string');
+  }
+
+  if (typeof password !== 'string') {
+    throw new MongoInvalidArgumentError('Password must be a string');
+  }
+
+  if (password.length === 0) {
+    throw new MongoInvalidArgumentError('Password cannot be empty');
+  }
+
+  let md5: crypto.Hash;
+  try {
+    md5 = crypto.createHash('md5');
+  } catch (err) {
+    if (crypto.getFips()) {
+      // This error is (slightly) more helpful than what comes from OpenSSL directly, e.g.
+      // 'Error: error:060800C8:digital envelope routines:EVP_DigestInit_ex:disabled for FIPS'
+      throw new Error('Auth mechanism SCRAM-SHA-1 is not supported in FIPS mode');
+    }
+    throw err;
+  }
+  md5.update(`${username}:mongo:${password}`, 'utf8');
+  return md5.digest('hex');
+}
+
+// XOR two buffers
+function xor(a: Buffer, b: Buffer) {
+  if (!Buffer.isBuffer(a)) {
+    a = Buffer.from(a);
+  }
+
+  if (!Buffer.isBuffer(b)) {
+    b = Buffer.from(b);
+  }
+
+  const length = Math.max(a.length, b.length);
+  const res = [];
+
+  for (let i = 0; i < length; i += 1) {
+    res.push(a[i] ^ b[i]);
+  }
+
+  return Buffer.from(res).toString('base64');
+}
+
+function H(method: CryptoMethod, text: Buffer) {
+  return crypto.createHash(method).update(text).digest();
+}
+
+function HMAC(method: CryptoMethod, key: Buffer, text: Buffer | string) {
+  return crypto.createHmac(method, key).update(text).digest();
+}
+
+interface HICache {
+  [key: string]: Buffer;
+}
+
+let _hiCache: HICache = {};
+let _hiCacheCount = 0;
+function _hiCachePurge() {
+  _hiCache = {};
+  _hiCacheCount = 0;
+}
+
+const hiLengthMap = {
+  sha256: 32,
+  sha1: 20
+};
+
+function HI(data: string, salt: Buffer, iterations: number, cryptoMethod: CryptoMethod) {
+  // omit the work if already generated
+  const key = [data, salt.toString('base64'), iterations].join('_');
+  if (_hiCache[key] != null) {
+    return _hiCache[key];
+  }
+
+  // generate the salt
+  const saltedData = crypto.pbkdf2Sync(
+    data,
+    salt,
+    iterations,
+    hiLengthMap[cryptoMethod],
+    cryptoMethod
+  );
+
+  // cache a copy to speed up the next lookup, but prevent unbounded cache growth
+  if (_hiCacheCount >= 200) {
+    _hiCachePurge();
+  }
+
+  _hiCache[key] = saltedData;
+  _hiCacheCount += 1;
+  return saltedData;
+}
+
+function compareDigest(lhs: Buffer, rhs: Uint8Array) {
+  if (lhs.length !== rhs.length) {
+    return false;
+  }
+
+  if (typeof crypto.timingSafeEqual === 'function') {
+    return crypto.timingSafeEqual(lhs, rhs);
+  }
+
+  let result = 0;
+  for (let i = 0; i < lhs.length; i++) {
+    result |= lhs[i] ^ rhs[i];
+  }
+
+  return result === 0;
+}
+
+export class ScramSHA1 extends ScramSHA {
+  constructor() {
+    super('sha1');
+  }
+}
+
+export class ScramSHA256 extends ScramSHA {
+  constructor() {
+    super('sha256');
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cmap/auth/x509.ts b/backend/node_modules/mongodb/src/cmap/auth/x509.ts
new file mode 100644
index 0000000..ec4c000
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/auth/x509.ts
@@ -0,0 +1,43 @@
+import type { Document } from '../../bson';
+import { MongoMissingCredentialsError } from '../../error';
+import { ns } from '../../utils';
+import type { HandshakeDocument } from '../connect';
+import { type AuthContext, AuthProvider } from './auth_provider';
+import type { MongoCredentials } from './mongo_credentials';
+
+export class X509 extends AuthProvider {
+  override async prepare(
+    handshakeDoc: HandshakeDocument,
+    authContext: AuthContext
+  ): Promise<HandshakeDocument> {
+    const { credentials } = authContext;
+    if (!credentials) {
+      throw new MongoMissingCredentialsError('AuthContext must provide credentials.');
+    }
+    return { ...handshakeDoc, speculativeAuthenticate: x509AuthenticateCommand(credentials) };
+  }
+
+  override async auth(authContext: AuthContext) {
+    const connection = authContext.connection;
+    const credentials = authContext.credentials;
+    if (!credentials) {
+      throw new MongoMissingCredentialsError('AuthContext must provide credentials.');
+    }
+    const response = authContext.response;
+
+    if (response?.speculativeAuthenticate) {
+      return;
+    }
+
+    await connection.command(ns('$external.$cmd'), x509AuthenticateCommand(credentials), undefined);
+  }
+}
+
+function x509AuthenticateCommand(credentials: MongoCredentials) {
+  const command: Document = { authenticate: 1, mechanism: 'MONGODB-X509' };
+  if (credentials.username) {
+    command.user = credentials.username;
+  }
+
+  return command;
+}
diff --git a/backend/node_modules/mongodb/src/cmap/command_monitoring_events.ts b/backend/node_modules/mongodb/src/cmap/command_monitoring_events.ts
new file mode 100644
index 0000000..a7e1653
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/command_monitoring_events.ts
@@ -0,0 +1,357 @@
+import { type Document, type ObjectId } from '../bson';
+import {
+  COMMAND_FAILED,
+  COMMAND_STARTED,
+  COMMAND_SUCCEEDED,
+  LEGACY_HELLO_COMMAND,
+  LEGACY_HELLO_COMMAND_CAMEL_CASE
+} from '../constants';
+import { calculateDurationInMs, deepCopy } from '../utils';
+import {
+  DocumentSequence,
+  OpMsgRequest,
+  type OpQueryRequest,
+  type WriteProtocolMessageType
+} from './commands';
+import type { Connection } from './connection';
+
+/**
+ * An event indicating the start of a given command
+ * @public
+ * @category Event
+ */
+export class CommandStartedEvent {
+  commandObj?: Document;
+  requestId: number;
+  databaseName: string;
+  commandName: string;
+  command: Document;
+  address: string;
+  /** Driver generated connection id */
+  connectionId?: string | number;
+  /**
+   * Server generated connection id
+   * Distinct from the connection id and is returned by the hello or legacy hello response as "connectionId"
+   * from the server on 4.2+.
+   */
+  serverConnectionId: bigint | null;
+  serviceId?: ObjectId;
+  /** @internal */
+  name = COMMAND_STARTED;
+
+  /**
+   * Create a started event
+   *
+   * @internal
+   * @param pool - the pool that originated the command
+   * @param command - the command
+   */
+  constructor(
+    connection: Connection,
+    command: WriteProtocolMessageType,
+    serverConnectionId: bigint | null
+  ) {
+    const cmd = extractCommand(command);
+    const commandName = extractCommandName(cmd);
+    const { address, connectionId, serviceId } = extractConnectionDetails(connection);
+
+    // TODO: remove in major revision, this is not spec behavior
+    if (SENSITIVE_COMMANDS.has(commandName)) {
+      this.commandObj = {};
+      this.commandObj[commandName] = true;
+    }
+
+    this.address = address;
+    this.connectionId = connectionId;
+    this.serviceId = serviceId;
+    this.requestId = command.requestId;
+    this.databaseName = command.databaseName;
+    this.commandName = commandName;
+    this.command = maybeRedact(commandName, cmd, cmd);
+    this.serverConnectionId = serverConnectionId;
+  }
+
+  /* @internal */
+  get hasServiceId(): boolean {
+    return !!this.serviceId;
+  }
+}
+
+/**
+ * An event indicating the success of a given command
+ * @public
+ * @category Event
+ */
+export class CommandSucceededEvent {
+  address: string;
+  /** Driver generated connection id */
+  connectionId?: string | number;
+  /**
+   * Server generated connection id
+   * Distinct from the connection id and is returned by the hello or legacy hello response as "connectionId" from the server on 4.2+.
+   */
+  serverConnectionId: bigint | null;
+  requestId: number;
+  duration: number;
+  commandName: string;
+  reply: unknown;
+  serviceId?: ObjectId;
+  /** @internal */
+  name = COMMAND_SUCCEEDED;
+
+  /**
+   * Create a succeeded event
+   *
+   * @internal
+   * @param pool - the pool that originated the command
+   * @param command - the command
+   * @param reply - the reply for this command from the server
+   * @param started - a high resolution tuple timestamp of when the command was first sent, to calculate duration
+   */
+  constructor(
+    connection: Connection,
+    command: WriteProtocolMessageType,
+    reply: Document | undefined,
+    started: number,
+    serverConnectionId: bigint | null
+  ) {
+    const cmd = extractCommand(command);
+    const commandName = extractCommandName(cmd);
+    const { address, connectionId, serviceId } = extractConnectionDetails(connection);
+
+    this.address = address;
+    this.connectionId = connectionId;
+    this.serviceId = serviceId;
+    this.requestId = command.requestId;
+    this.commandName = commandName;
+    this.duration = calculateDurationInMs(started);
+    this.reply = maybeRedact(commandName, cmd, extractReply(command, reply));
+    this.serverConnectionId = serverConnectionId;
+  }
+
+  /* @internal */
+  get hasServiceId(): boolean {
+    return !!this.serviceId;
+  }
+}
+
+/**
+ * An event indicating the failure of a given command
+ * @public
+ * @category Event
+ */
+export class CommandFailedEvent {
+  address: string;
+  /** Driver generated connection id */
+  connectionId?: string | number;
+  /**
+   * Server generated connection id
+   * Distinct from the connection id and is returned by the hello or legacy hello response as "connectionId" from the server on 4.2+.
+   */
+  serverConnectionId: bigint | null;
+  requestId: number;
+  duration: number;
+  commandName: string;
+  failure: Error;
+  serviceId?: ObjectId;
+  /** @internal */
+  name = COMMAND_FAILED;
+
+  /**
+   * Create a failure event
+   *
+   * @internal
+   * @param pool - the pool that originated the command
+   * @param command - the command
+   * @param error - the generated error or a server error response
+   * @param started - a high resolution tuple timestamp of when the command was first sent, to calculate duration
+   */
+  constructor(
+    connection: Connection,
+    command: WriteProtocolMessageType,
+    error: Error | Document,
+    started: number,
+    serverConnectionId: bigint | null
+  ) {
+    const cmd = extractCommand(command);
+    const commandName = extractCommandName(cmd);
+    const { address, connectionId, serviceId } = extractConnectionDetails(connection);
+
+    this.address = address;
+    this.connectionId = connectionId;
+    this.serviceId = serviceId;
+
+    this.requestId = command.requestId;
+    this.commandName = commandName;
+    this.duration = calculateDurationInMs(started);
+    this.failure = maybeRedact(commandName, cmd, error) as Error;
+    this.serverConnectionId = serverConnectionId;
+  }
+
+  /* @internal */
+  get hasServiceId(): boolean {
+    return !!this.serviceId;
+  }
+}
+
+/**
+ * Commands that we want to redact because of the sensitive nature of their contents
+ * @internal
+ */
+export const SENSITIVE_COMMANDS = new Set([
+  'authenticate',
+  'saslStart',
+  'saslContinue',
+  'getnonce',
+  'createUser',
+  'updateUser',
+  'copydbgetnonce',
+  'copydbsaslstart',
+  'copydb'
+]);
+
+const HELLO_COMMANDS = new Set(['hello', LEGACY_HELLO_COMMAND, LEGACY_HELLO_COMMAND_CAMEL_CASE]);
+
+// helper methods
+const extractCommandName = (commandDoc: Document) => Object.keys(commandDoc)[0];
+const namespace = (command: OpQueryRequest) => command.ns;
+const collectionName = (command: OpQueryRequest) => command.ns.split('.')[1];
+const maybeRedact = (commandName: string, commandDoc: Document, result: Error | Document) =>
+  SENSITIVE_COMMANDS.has(commandName) ||
+  (HELLO_COMMANDS.has(commandName) && commandDoc.speculativeAuthenticate)
+    ? {}
+    : result;
+
+const LEGACY_FIND_QUERY_MAP: { [key: string]: string } = {
+  $query: 'filter',
+  $orderby: 'sort',
+  $hint: 'hint',
+  $comment: 'comment',
+  $maxScan: 'maxScan',
+  $max: 'max',
+  $min: 'min',
+  $returnKey: 'returnKey',
+  $showDiskLoc: 'showRecordId',
+  $maxTimeMS: 'maxTimeMS',
+  $snapshot: 'snapshot'
+};
+
+const LEGACY_FIND_OPTIONS_MAP = {
+  numberToSkip: 'skip',
+  numberToReturn: 'batchSize',
+  returnFieldSelector: 'projection'
+} as const;
+
+const OP_QUERY_KEYS = [
+  'tailable',
+  'oplogReplay',
+  'noCursorTimeout',
+  'awaitData',
+  'partial',
+  'exhaust'
+] as const;
+
+/** Extract the actual command from the query, possibly up-converting if it's a legacy format */
+function extractCommand(command: WriteProtocolMessageType): Document {
+  if (command instanceof OpMsgRequest) {
+    const cmd = deepCopy(command.command);
+    // For OP_MSG with payload type 1 we need to pull the documents
+    // array out of the document sequence for monitoring.
+    if (cmd.ops instanceof DocumentSequence) {
+      cmd.ops = cmd.ops.documents;
+    }
+    if (cmd.nsInfo instanceof DocumentSequence) {
+      cmd.nsInfo = cmd.nsInfo.documents;
+    }
+    return cmd;
+  }
+
+  if (command.query?.$query) {
+    let result: Document;
+    if (command.ns === 'admin.$cmd') {
+      // up-convert legacy command
+      result = Object.assign({}, command.query.$query);
+    } else {
+      // up-convert legacy find command
+      result = { find: collectionName(command) };
+      Object.keys(LEGACY_FIND_QUERY_MAP).forEach(key => {
+        if (command.query[key] != null) {
+          result[LEGACY_FIND_QUERY_MAP[key]] = deepCopy(command.query[key]);
+        }
+      });
+    }
+
+    Object.keys(LEGACY_FIND_OPTIONS_MAP).forEach(key => {
+      const legacyKey = key as keyof typeof LEGACY_FIND_OPTIONS_MAP;
+      if (command[legacyKey] != null) {
+        result[LEGACY_FIND_OPTIONS_MAP[legacyKey]] = deepCopy(command[legacyKey]);
+      }
+    });
+
+    OP_QUERY_KEYS.forEach(key => {
+      if (command[key]) {
+        result[key] = command[key];
+      }
+    });
+
+    if (command.pre32Limit != null) {
+      result.limit = command.pre32Limit;
+    }
+
+    if (command.query.$explain) {
+      return { explain: result };
+    }
+    return result;
+  }
+
+  const clonedQuery: Record<string, unknown> = {};
+  const clonedCommand: Record<string, unknown> = {};
+  if (command.query) {
+    for (const k in command.query) {
+      clonedQuery[k] = deepCopy(command.query[k]);
+    }
+    clonedCommand.query = clonedQuery;
+  }
+
+  for (const k in command) {
+    if (k === 'query') continue;
+    clonedCommand[k] = deepCopy((command as unknown as Record<string, unknown>)[k]);
+  }
+  return command.query ? clonedQuery : clonedCommand;
+}
+
+function extractReply(command: WriteProtocolMessageType, reply?: Document) {
+  if (!reply) {
+    return reply;
+  }
+
+  if (command instanceof OpMsgRequest) {
+    return deepCopy(reply.result ? reply.result : reply);
+  }
+
+  // is this a legacy find command?
+  if (command.query && command.query.$query != null) {
+    return {
+      ok: 1,
+      cursor: {
+        id: deepCopy(reply.cursorId),
+        ns: namespace(command),
+        firstBatch: deepCopy(reply.documents)
+      }
+    };
+  }
+
+  return deepCopy(reply.result ? reply.result : reply);
+}
+
+function extractConnectionDetails(connection: Connection) {
+  let connectionId;
+  if ('id' in connection) {
+    connectionId = connection.id;
+  }
+  return {
+    address: connection.address,
+    serviceId: connection.serviceId,
+    connectionId
+  };
+}
diff --git a/backend/node_modules/mongodb/src/cmap/commands.ts b/backend/node_modules/mongodb/src/cmap/commands.ts
new file mode 100644
index 0000000..f14c3f5
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/commands.ts
@@ -0,0 +1,773 @@
+import type { BSONSerializeOptions, Document, Long } from '../bson';
+import * as BSON from '../bson';
+import { MongoInvalidArgumentError, MongoRuntimeError } from '../error';
+import { type ReadPreference } from '../read_preference';
+import type { ClientSession } from '../sessions';
+import type { CommandOptions } from './connection';
+import {
+  compress,
+  Compressor,
+  type CompressorName,
+  uncompressibleCommands
+} from './wire_protocol/compression';
+import { OP_COMPRESSED, OP_MSG, OP_QUERY } from './wire_protocol/constants';
+
+// Incrementing request id
+let _requestId = 0;
+
+// Query flags
+const OPTS_TAILABLE_CURSOR = 2;
+const OPTS_SECONDARY = 4;
+const OPTS_OPLOG_REPLAY = 8;
+const OPTS_NO_CURSOR_TIMEOUT = 16;
+const OPTS_AWAIT_DATA = 32;
+const OPTS_EXHAUST = 64;
+const OPTS_PARTIAL = 128;
+
+// Response flags
+const CURSOR_NOT_FOUND = 1;
+const QUERY_FAILURE = 2;
+const SHARD_CONFIG_STALE = 4;
+const AWAIT_CAPABLE = 8;
+
+const encodeUTF8Into = BSON.BSON.onDemand.ByteUtils.encodeUTF8Into;
+
+/** @internal */
+export type WriteProtocolMessageType = OpQueryRequest | OpMsgRequest;
+
+/** @internal */
+export interface OpQueryOptions extends CommandOptions {
+  socketTimeoutMS?: number;
+  session?: ClientSession;
+  numberToSkip?: number;
+  numberToReturn?: number;
+  returnFieldSelector?: Document;
+  pre32Limit?: number;
+  serializeFunctions?: boolean;
+  ignoreUndefined?: boolean;
+  maxBsonSize?: number;
+  checkKeys?: boolean;
+  secondaryOk?: boolean;
+
+  requestId?: number;
+  moreToCome?: boolean;
+  exhaustAllowed?: boolean;
+}
+
+/** @internal */
+export class OpQueryRequest {
+  ns: string;
+  numberToSkip: number;
+  numberToReturn: number;
+  returnFieldSelector?: Document;
+  requestId: number;
+  pre32Limit?: number;
+  serializeFunctions: boolean;
+  ignoreUndefined: boolean;
+  maxBsonSize: number;
+  checkKeys: boolean;
+  batchSize: number;
+  tailable: boolean;
+  secondaryOk: boolean;
+  oplogReplay: boolean;
+  noCursorTimeout: boolean;
+  awaitData: boolean;
+  exhaust: boolean;
+  partial: boolean;
+  /** moreToCome is an OP_MSG only concept */
+  moreToCome = false;
+
+  constructor(
+    public databaseName: string,
+    public query: Document,
+    options: OpQueryOptions
+  ) {
+    // Basic options needed to be passed in
+    // TODO(NODE-3483): Replace with MongoCommandError
+    const ns = `${databaseName}.$cmd`;
+    if (typeof databaseName !== 'string') {
+      throw new MongoRuntimeError('Database name must be a string for a query');
+    }
+    // TODO(NODE-3483): Replace with MongoCommandError
+    if (query == null) throw new MongoRuntimeError('A query document must be specified for query');
+
+    // Validate that we are not passing 0x00 in the collection name
+    if (ns.indexOf('\x00') !== -1) {
+      // TODO(NODE-3483): Use MongoNamespace static method
+      throw new MongoRuntimeError('Namespace cannot contain a null character');
+    }
+
+    // Basic options
+    this.ns = ns;
+
+    // Additional options
+    this.numberToSkip = options.numberToSkip || 0;
+    this.numberToReturn = options.numberToReturn || 0;
+    this.returnFieldSelector = options.returnFieldSelector || undefined;
+    this.requestId = options.requestId ?? OpQueryRequest.getRequestId();
+
+    // special case for pre-3.2 find commands, delete ASAP
+    this.pre32Limit = options.pre32Limit;
+
+    // Serialization option
+    this.serializeFunctions =
+      typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false;
+    this.ignoreUndefined =
+      typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : false;
+    this.maxBsonSize = options.maxBsonSize || 1024 * 1024 * 16;
+    this.checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false;
+    this.batchSize = this.numberToReturn;
+
+    // Flags
+    this.tailable = false;
+    this.secondaryOk = typeof options.secondaryOk === 'boolean' ? options.secondaryOk : false;
+    this.oplogReplay = false;
+    this.noCursorTimeout = false;
+    this.awaitData = false;
+    this.exhaust = false;
+    this.partial = false;
+  }
+
+  /** Assign next request Id. */
+  incRequestId(): void {
+    this.requestId = _requestId++;
+  }
+
+  /** Peek next request Id. */
+  nextRequestId(): number {
+    return _requestId + 1;
+  }
+
+  /** Increment then return next request Id. */
+  static getRequestId(): number {
+    return ++_requestId;
+  }
+
+  // Uses a single allocated buffer for the process, avoiding multiple memory allocations
+  toBin(): Uint8Array[] {
+    const buffers = [];
+    let projection = null;
+
+    // Set up the flags
+    let flags = 0;
+    if (this.tailable) {
+      flags |= OPTS_TAILABLE_CURSOR;
+    }
+
+    if (this.secondaryOk) {
+      flags |= OPTS_SECONDARY;
+    }
+
+    if (this.oplogReplay) {
+      flags |= OPTS_OPLOG_REPLAY;
+    }
+
+    if (this.noCursorTimeout) {
+      flags |= OPTS_NO_CURSOR_TIMEOUT;
+    }
+
+    if (this.awaitData) {
+      flags |= OPTS_AWAIT_DATA;
+    }
+
+    if (this.exhaust) {
+      flags |= OPTS_EXHAUST;
+    }
+
+    if (this.partial) {
+      flags |= OPTS_PARTIAL;
+    }
+
+    // If batchSize is different to this.numberToReturn
+    if (this.batchSize !== this.numberToReturn) this.numberToReturn = this.batchSize;
+
+    // Allocate write protocol header buffer
+    const header = Buffer.alloc(
+      4 * 4 + // Header
+        4 + // Flags
+        Buffer.byteLength(this.ns) +
+        1 + // namespace
+        4 + // numberToSkip
+        4 // numberToReturn
+    );
+
+    // Add header to buffers
+    buffers.push(header);
+
+    // Serialize the query
+    const query = BSON.serialize(this.query, {
+      checkKeys: this.checkKeys,
+      serializeFunctions: this.serializeFunctions,
+      ignoreUndefined: this.ignoreUndefined
+    });
+
+    // Add query document
+    buffers.push(query);
+
+    if (this.returnFieldSelector && Object.keys(this.returnFieldSelector).length > 0) {
+      // Serialize the projection document
+      projection = BSON.serialize(this.returnFieldSelector, {
+        checkKeys: this.checkKeys,
+        serializeFunctions: this.serializeFunctions,
+        ignoreUndefined: this.ignoreUndefined
+      });
+      // Add projection document
+      buffers.push(projection);
+    }
+
+    // Total message size
+    const totalLength = header.length + query.length + (projection ? projection.length : 0);
+
+    // Set up the index
+    let index = 4;
+
+    // Write total document length
+    header[3] = (totalLength >> 24) & 0xff;
+    header[2] = (totalLength >> 16) & 0xff;
+    header[1] = (totalLength >> 8) & 0xff;
+    header[0] = totalLength & 0xff;
+
+    // Write header information requestId
+    header[index + 3] = (this.requestId >> 24) & 0xff;
+    header[index + 2] = (this.requestId >> 16) & 0xff;
+    header[index + 1] = (this.requestId >> 8) & 0xff;
+    header[index] = this.requestId & 0xff;
+    index = index + 4;
+
+    // Write header information responseTo
+    header[index + 3] = (0 >> 24) & 0xff;
+    header[index + 2] = (0 >> 16) & 0xff;
+    header[index + 1] = (0 >> 8) & 0xff;
+    header[index] = 0 & 0xff;
+    index = index + 4;
+
+    // Write header information OP_QUERY
+    header[index + 3] = (OP_QUERY >> 24) & 0xff;
+    header[index + 2] = (OP_QUERY >> 16) & 0xff;
+    header[index + 1] = (OP_QUERY >> 8) & 0xff;
+    header[index] = OP_QUERY & 0xff;
+    index = index + 4;
+
+    // Write header information flags
+    header[index + 3] = (flags >> 24) & 0xff;
+    header[index + 2] = (flags >> 16) & 0xff;
+    header[index + 1] = (flags >> 8) & 0xff;
+    header[index] = flags & 0xff;
+    index = index + 4;
+
+    // Write collection name
+    index = index + header.write(this.ns, index, 'utf8') + 1;
+    header[index - 1] = 0;
+
+    // Write header information flags numberToSkip
+    header[index + 3] = (this.numberToSkip >> 24) & 0xff;
+    header[index + 2] = (this.numberToSkip >> 16) & 0xff;
+    header[index + 1] = (this.numberToSkip >> 8) & 0xff;
+    header[index] = this.numberToSkip & 0xff;
+    index = index + 4;
+
+    // Write header information flags numberToReturn
+    header[index + 3] = (this.numberToReturn >> 24) & 0xff;
+    header[index + 2] = (this.numberToReturn >> 16) & 0xff;
+    header[index + 1] = (this.numberToReturn >> 8) & 0xff;
+    header[index] = this.numberToReturn & 0xff;
+    index = index + 4;
+
+    // Return the buffers
+    return buffers;
+  }
+}
+
+/** @internal */
+export interface MessageHeader {
+  length: number;
+  requestId: number;
+  responseTo: number;
+  opCode: number;
+  fromCompressed?: boolean;
+}
+
+/** @internal */
+export class OpReply {
+  parsed: boolean;
+  raw: Buffer;
+  data: Buffer;
+  opts: BSONSerializeOptions;
+  length: number;
+  requestId: number;
+  responseTo: number;
+  opCode: number;
+  fromCompressed?: boolean;
+  responseFlags?: number;
+  cursorId?: Long;
+  startingFrom?: number;
+  numberReturned?: number;
+  cursorNotFound?: boolean;
+  queryFailure?: boolean;
+  shardConfigStale?: boolean;
+  awaitCapable?: boolean;
+  useBigInt64: boolean;
+  promoteLongs: boolean;
+  promoteValues: boolean;
+  promoteBuffers: boolean;
+  bsonRegExp?: boolean;
+  index = 0;
+  sections: Uint8Array[] = [];
+
+  /** moreToCome is an OP_MSG only concept */
+  moreToCome = false;
+
+  constructor(
+    message: Buffer,
+    msgHeader: MessageHeader,
+    msgBody: Buffer,
+    opts?: BSONSerializeOptions
+  ) {
+    this.parsed = false;
+    this.raw = message;
+    this.data = msgBody;
+    this.opts = opts ?? {
+      useBigInt64: false,
+      promoteLongs: true,
+      promoteValues: true,
+      promoteBuffers: false,
+      bsonRegExp: false
+    };
+
+    // Read the message header
+    this.length = msgHeader.length;
+    this.requestId = msgHeader.requestId;
+    this.responseTo = msgHeader.responseTo;
+    this.opCode = msgHeader.opCode;
+    this.fromCompressed = msgHeader.fromCompressed;
+
+    // Flag values
+    this.useBigInt64 = typeof this.opts.useBigInt64 === 'boolean' ? this.opts.useBigInt64 : false;
+    this.promoteLongs = typeof this.opts.promoteLongs === 'boolean' ? this.opts.promoteLongs : true;
+    this.promoteValues =
+      typeof this.opts.promoteValues === 'boolean' ? this.opts.promoteValues : true;
+    this.promoteBuffers =
+      typeof this.opts.promoteBuffers === 'boolean' ? this.opts.promoteBuffers : false;
+    this.bsonRegExp = typeof this.opts.bsonRegExp === 'boolean' ? this.opts.bsonRegExp : false;
+  }
+
+  isParsed(): boolean {
+    return this.parsed;
+  }
+
+  parse(): Uint8Array {
+    // Don't parse again if not needed
+    if (this.parsed) return this.sections[0];
+
+    // Position within OP_REPLY at which documents start
+    // (See https://www.mongodb.com/docs/manual/reference/mongodb-wire-protocol/#wire-op-reply)
+    this.index = 20;
+
+    // Read the message body
+    this.responseFlags = this.data.readInt32LE(0);
+    this.cursorId = new BSON.Long(this.data.readInt32LE(4), this.data.readInt32LE(8));
+    this.startingFrom = this.data.readInt32LE(12);
+    this.numberReturned = this.data.readInt32LE(16);
+
+    if (this.numberReturned < 0 || this.numberReturned > 2 ** 32 - 1) {
+      throw new RangeError(
+        `OP_REPLY numberReturned is an invalid array length ${this.numberReturned}`
+      );
+    }
+
+    this.cursorNotFound = (this.responseFlags & CURSOR_NOT_FOUND) !== 0;
+    this.queryFailure = (this.responseFlags & QUERY_FAILURE) !== 0;
+    this.shardConfigStale = (this.responseFlags & SHARD_CONFIG_STALE) !== 0;
+    this.awaitCapable = (this.responseFlags & AWAIT_CAPABLE) !== 0;
+
+    // Parse Body
+    for (let i = 0; i < this.numberReturned; i++) {
+      const bsonSize =
+        this.data[this.index] |
+        (this.data[this.index + 1] << 8) |
+        (this.data[this.index + 2] << 16) |
+        (this.data[this.index + 3] << 24);
+
+      const section = this.data.subarray(this.index, this.index + bsonSize);
+      this.sections.push(section);
+
+      // Adjust the index
+      this.index = this.index + bsonSize;
+    }
+
+    // Set parsed
+    this.parsed = true;
+
+    return this.sections[0];
+  }
+}
+
+// Msg Flags
+const OPTS_CHECKSUM_PRESENT = 1;
+const OPTS_MORE_TO_COME = 2;
+const OPTS_EXHAUST_ALLOWED = 1 << 16;
+
+/** @internal */
+export interface OpMsgOptions {
+  socketTimeoutMS?: number;
+  session?: ClientSession;
+  numberToSkip?: number;
+  numberToReturn?: number;
+  returnFieldSelector?: Document;
+  pre32Limit?: number;
+  serializeFunctions?: boolean;
+  ignoreUndefined?: boolean;
+  maxBsonSize?: number;
+  checkKeys?: boolean;
+  secondaryOk?: boolean;
+
+  requestId?: number;
+  moreToCome?: boolean;
+  exhaustAllowed?: boolean;
+  readPreference: ReadPreference;
+}
+
+/** @internal */
+export class DocumentSequence {
+  field: string;
+  documents: Document[];
+  serializedDocumentsLength: number;
+  private chunks: Uint8Array[];
+  private header: Buffer;
+
+  /**
+   * Create a new document sequence for the provided field.
+   * @param field - The field it will replace.
+   */
+  constructor(field: string, documents?: Document[]) {
+    this.field = field;
+    this.documents = [];
+    this.chunks = [];
+    this.serializedDocumentsLength = 0;
+    // Document sequences starts with type 1 at the first byte.
+    // Field strings must always be UTF-8.
+    const buffer = Buffer.allocUnsafe(1 + 4 + this.field.length + 1);
+    buffer[0] = 1;
+    // Third part is the field name at offset 5 with trailing null byte.
+    encodeUTF8Into(buffer, `${this.field}\0`, 5);
+    this.chunks.push(buffer);
+    this.header = buffer;
+    if (documents) {
+      for (const doc of documents) {
+        this.push(doc, BSON.serialize(doc));
+      }
+    }
+  }
+
+  /**
+   * Push a document to the document sequence. Will serialize the document
+   * as well and return the current serialized length of all documents.
+   * @param document - The document to add.
+   * @param buffer - The serialized document in raw BSON.
+   * @returns The new total document sequence length.
+   */
+  push(document: Document, buffer: Uint8Array): number {
+    this.serializedDocumentsLength += buffer.length;
+    // Push the document.
+    this.documents.push(document);
+    // Push the document raw bson.
+    this.chunks.push(buffer);
+    // Write the new length.
+    this.header?.writeInt32LE(4 + this.field.length + 1 + this.serializedDocumentsLength, 1);
+    return this.serializedDocumentsLength + this.header.length;
+  }
+
+  /**
+   * Get the fully serialized bytes for the document sequence section.
+   * @returns The section bytes.
+   */
+  toBin(): Uint8Array {
+    return Buffer.concat(this.chunks);
+  }
+}
+
+/** @internal */
+export class OpMsgRequest {
+  requestId: number;
+  serializeFunctions: boolean;
+  ignoreUndefined: boolean;
+  checkKeys: boolean;
+  maxBsonSize: number;
+  checksumPresent: boolean;
+  moreToCome: boolean;
+  exhaustAllowed: boolean;
+
+  constructor(
+    public databaseName: string,
+    public command: Document,
+    public options: OpQueryOptions
+  ) {
+    // Basic options needed to be passed in
+    if (command == null)
+      throw new MongoInvalidArgumentError('Query document must be specified for query');
+
+    // Basic options
+    this.command.$db = databaseName;
+
+    // Ensure empty options
+    this.options = options ?? {};
+
+    // Additional options
+    this.requestId = options.requestId ? options.requestId : OpMsgRequest.getRequestId();
+
+    // Serialization option
+    this.serializeFunctions =
+      typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false;
+    this.ignoreUndefined =
+      typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : false;
+    this.checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false;
+    this.maxBsonSize = options.maxBsonSize || 1024 * 1024 * 16;
+
+    // flags
+    this.checksumPresent = false;
+    this.moreToCome = options.moreToCome ?? command.writeConcern?.w === 0;
+    this.exhaustAllowed =
+      typeof options.exhaustAllowed === 'boolean' ? options.exhaustAllowed : false;
+  }
+
+  toBin(): Buffer[] {
+    const buffers: Buffer[] = [];
+    let flags = 0;
+
+    if (this.checksumPresent) {
+      flags |= OPTS_CHECKSUM_PRESENT;
+    }
+
+    if (this.moreToCome) {
+      flags |= OPTS_MORE_TO_COME;
+    }
+
+    if (this.exhaustAllowed) {
+      flags |= OPTS_EXHAUST_ALLOWED;
+    }
+
+    const header = Buffer.alloc(
+      4 * 4 + // Header
+        4 // Flags
+    );
+
+    buffers.push(header);
+
+    let totalLength = header.length;
+    const command = this.command;
+    totalLength += this.makeSections(buffers, command);
+
+    header.writeInt32LE(totalLength, 0); // messageLength
+    header.writeInt32LE(this.requestId, 4); // requestID
+    header.writeInt32LE(0, 8); // responseTo
+    header.writeInt32LE(OP_MSG, 12); // opCode
+    header.writeUInt32LE(flags, 16); // flags
+    return buffers;
+  }
+
+  /**
+   * Add the sections to the OP_MSG request's buffers and returns the length.
+   */
+  makeSections(buffers: Uint8Array[], document: Document): number {
+    const sequencesBuffer = this.extractDocumentSequences(document);
+    const payloadTypeBuffer = Buffer.allocUnsafe(1);
+    payloadTypeBuffer[0] = 0;
+
+    const documentBuffer = this.serializeBson(document);
+    // First section, type 0
+    buffers.push(payloadTypeBuffer);
+    buffers.push(documentBuffer);
+    // Subsequent sections, type 1
+    buffers.push(sequencesBuffer);
+
+    return payloadTypeBuffer.length + documentBuffer.length + sequencesBuffer.length;
+  }
+
+  /**
+   * Extracts the document sequences from the command document and returns
+   * a buffer to be added as multiple sections after the initial type 0
+   * section in the message.
+   */
+  extractDocumentSequences(document: Document): Uint8Array {
+    // Pull out any field in the command document that's value is a document sequence.
+    const chunks = [];
+    for (const [key, value] of Object.entries(document)) {
+      if (value instanceof DocumentSequence) {
+        chunks.push(value.toBin());
+        // Why are we removing the field from the command? This is because it needs to be
+        // removed in the OP_MSG request first section, and DocumentSequence is not a
+        // BSON type and is specific to the MongoDB wire protocol so there's nothing
+        // our BSON serializer can do about this. Since DocumentSequence is not exposed
+        // in the public API and only used internally, we are never mutating an original
+        // command provided by the user, just our own, and it's cheaper to delete from
+        // our own command than copying it.
+        delete document[key];
+      }
+    }
+    if (chunks.length > 0) {
+      return Buffer.concat(chunks);
+    }
+    // If we have no document sequences we return an empty buffer for nothing to add
+    // to the payload.
+    return Buffer.alloc(0);
+  }
+
+  serializeBson(document: Document): Uint8Array {
+    return BSON.serialize(document, {
+      checkKeys: this.checkKeys,
+      serializeFunctions: this.serializeFunctions,
+      ignoreUndefined: this.ignoreUndefined
+    });
+  }
+
+  static getRequestId(): number {
+    _requestId = (_requestId + 1) & 0x7fffffff;
+    return _requestId;
+  }
+}
+
+/** @internal */
+export class OpMsgResponse {
+  parsed: boolean;
+  raw: Buffer;
+  data: Buffer;
+  opts: BSONSerializeOptions;
+  length: number;
+  requestId: number;
+  responseTo: number;
+  opCode: number;
+  fromCompressed?: boolean;
+  responseFlags: number;
+  checksumPresent: boolean;
+  /** Indicates the server will be sending more responses on this connection */
+  moreToCome: boolean;
+  exhaustAllowed: boolean;
+  useBigInt64: boolean;
+  promoteLongs: boolean;
+  promoteValues: boolean;
+  promoteBuffers: boolean;
+  bsonRegExp: boolean;
+  index = 0;
+  sections: Uint8Array[] = [];
+
+  constructor(
+    message: Buffer,
+    msgHeader: MessageHeader,
+    msgBody: Buffer,
+    opts?: BSONSerializeOptions
+  ) {
+    this.parsed = false;
+    this.raw = message;
+    this.data = msgBody;
+    this.opts = opts ?? {
+      useBigInt64: false,
+      promoteLongs: true,
+      promoteValues: true,
+      promoteBuffers: false,
+      bsonRegExp: false
+    };
+
+    // Read the message header
+    this.length = msgHeader.length;
+    this.requestId = msgHeader.requestId;
+    this.responseTo = msgHeader.responseTo;
+    this.opCode = msgHeader.opCode;
+    this.fromCompressed = msgHeader.fromCompressed;
+
+    // Read response flags
+    this.responseFlags = msgBody.readInt32LE(0);
+    this.checksumPresent = (this.responseFlags & OPTS_CHECKSUM_PRESENT) !== 0;
+    this.moreToCome = (this.responseFlags & OPTS_MORE_TO_COME) !== 0;
+    this.exhaustAllowed = (this.responseFlags & OPTS_EXHAUST_ALLOWED) !== 0;
+    this.useBigInt64 = typeof this.opts.useBigInt64 === 'boolean' ? this.opts.useBigInt64 : false;
+    this.promoteLongs = typeof this.opts.promoteLongs === 'boolean' ? this.opts.promoteLongs : true;
+    this.promoteValues =
+      typeof this.opts.promoteValues === 'boolean' ? this.opts.promoteValues : true;
+    this.promoteBuffers =
+      typeof this.opts.promoteBuffers === 'boolean' ? this.opts.promoteBuffers : false;
+    this.bsonRegExp = typeof this.opts.bsonRegExp === 'boolean' ? this.opts.bsonRegExp : false;
+  }
+
+  isParsed(): boolean {
+    return this.parsed;
+  }
+
+  parse(): Uint8Array {
+    // Don't parse again if not needed
+    if (this.parsed) return this.sections[0];
+
+    this.index = 4;
+
+    while (this.index < this.data.length) {
+      const payloadType = this.data.readUInt8(this.index++);
+      if (payloadType === 0) {
+        const bsonSize = this.data.readUInt32LE(this.index);
+        const bin = this.data.subarray(this.index, this.index + bsonSize);
+
+        this.sections.push(bin);
+
+        this.index += bsonSize;
+      } else if (payloadType === 1) {
+        // It was decided that no driver makes use of payload type 1
+
+        // TODO(NODE-3483): Replace with MongoDeprecationError
+        throw new MongoRuntimeError('OP_MSG Payload Type 1 detected unsupported protocol');
+      }
+    }
+
+    this.parsed = true;
+
+    return this.sections[0];
+  }
+}
+
+const MESSAGE_HEADER_SIZE = 16;
+const COMPRESSION_DETAILS_SIZE = 9; // originalOpcode + uncompressedSize, compressorID
+
+/**
+ * @internal
+ *
+ * An OP_COMPRESSED request wraps either an OP_QUERY or OP_MSG message.
+ */
+export class OpCompressedRequest {
+  constructor(
+    private command: WriteProtocolMessageType,
+    private options: { zlibCompressionLevel: number; agreedCompressor: CompressorName }
+  ) {}
+
+  // Return whether a command contains an uncompressible command term
+  // Will return true if command contains no uncompressible command terms
+  static canCompress(command: WriteProtocolMessageType) {
+    const commandDoc = command instanceof OpMsgRequest ? command.command : command.query;
+    const commandName = Object.keys(commandDoc)[0];
+    return !uncompressibleCommands.has(commandName);
+  }
+
+  async toBin(): Promise<Buffer[]> {
+    const concatenatedOriginalCommandBuffer = Buffer.concat(this.command.toBin());
+    // otherwise, compress the message
+    const messageToBeCompressed = concatenatedOriginalCommandBuffer.slice(MESSAGE_HEADER_SIZE);
+
+    // Extract information needed for OP_COMPRESSED from the uncompressed message
+    const originalCommandOpCode = concatenatedOriginalCommandBuffer.readInt32LE(12);
+
+    // Compress the message body
+    const compressedMessage = await compress(this.options, messageToBeCompressed);
+    // Create the msgHeader of OP_COMPRESSED
+    const msgHeader = Buffer.alloc(MESSAGE_HEADER_SIZE);
+    msgHeader.writeInt32LE(
+      MESSAGE_HEADER_SIZE + COMPRESSION_DETAILS_SIZE + compressedMessage.length,
+      0
+    ); // messageLength
+    msgHeader.writeInt32LE(this.command.requestId, 4); // requestID
+    msgHeader.writeInt32LE(0, 8); // responseTo (zero)
+    msgHeader.writeInt32LE(OP_COMPRESSED, 12); // opCode
+
+    // Create the compression details of OP_COMPRESSED
+    const compressionDetails = Buffer.alloc(COMPRESSION_DETAILS_SIZE);
+    compressionDetails.writeInt32LE(originalCommandOpCode, 0); // originalOpcode
+    compressionDetails.writeInt32LE(messageToBeCompressed.length, 4); // Size of the uncompressed compressedMessage, excluding the MsgHeader
+    compressionDetails.writeUInt8(Compressor[this.options.agreedCompressor], 8); // compressorID
+    return [msgHeader, compressionDetails, compressedMessage];
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cmap/connect.ts b/backend/node_modules/mongodb/src/cmap/connect.ts
new file mode 100644
index 0000000..9efe246
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/connect.ts
@@ -0,0 +1,499 @@
+import type { Socket, SocketConnectOpts } from 'net';
+import * as net from 'net';
+import type { ConnectionOptions as TLSConnectionOpts, TLSSocket } from 'tls';
+import * as tls from 'tls';
+
+import type { Document } from '../bson';
+import { LEGACY_HELLO_COMMAND } from '../constants';
+import { getSocks, type SocksLib } from '../deps';
+import {
+  MongoCompatibilityError,
+  MongoError,
+  MongoErrorLabel,
+  MongoInvalidArgumentError,
+  MongoNetworkError,
+  MongoNetworkTimeoutError,
+  MongoRuntimeError,
+  needsRetryableWriteLabel
+} from '../error';
+import { HostAddress, ns, promiseWithResolvers } from '../utils';
+import { AuthContext } from './auth/auth_provider';
+import { AuthMechanism } from './auth/providers';
+import {
+  type CommandOptions,
+  Connection,
+  type ConnectionOptions,
+  CryptoConnection
+} from './connection';
+import {
+  MAX_SUPPORTED_SERVER_VERSION,
+  MAX_SUPPORTED_WIRE_VERSION,
+  MIN_SUPPORTED_SERVER_VERSION,
+  MIN_SUPPORTED_WIRE_VERSION
+} from './wire_protocol/constants';
+
+/** @public */
+export type Stream = Socket | TLSSocket;
+
+export async function connect(options: ConnectionOptions): Promise<Connection> {
+  let connection: Connection | null = null;
+  try {
+    const socket = await makeSocket(options);
+    connection = makeConnection(options, socket);
+    await performInitialHandshake(connection, options);
+    return connection;
+  } catch (error) {
+    connection?.destroy();
+    throw error;
+  }
+}
+
+export function makeConnection(options: ConnectionOptions, socket: Stream): Connection {
+  let ConnectionType = options.connectionType ?? Connection;
+  if (options.autoEncrypter) {
+    ConnectionType = CryptoConnection;
+  }
+
+  return new ConnectionType(socket, options);
+}
+
+function checkSupportedServer(hello: Document, options: ConnectionOptions) {
+  const maxWireVersion = Number(hello.maxWireVersion);
+  const minWireVersion = Number(hello.minWireVersion);
+  const serverVersionHighEnough =
+    !Number.isNaN(maxWireVersion) && maxWireVersion >= MIN_SUPPORTED_WIRE_VERSION;
+  const serverVersionLowEnough =
+    !Number.isNaN(minWireVersion) && minWireVersion <= MAX_SUPPORTED_WIRE_VERSION;
+
+  if (serverVersionHighEnough) {
+    if (serverVersionLowEnough) {
+      return null;
+    }
+
+    const message = `Server at ${options.hostAddress} reports minimum wire version ${JSON.stringify(
+      hello.minWireVersion
+    )}, but this version of the Node.js Driver requires at most ${MAX_SUPPORTED_WIRE_VERSION} (MongoDB ${MAX_SUPPORTED_SERVER_VERSION})`;
+    return new MongoCompatibilityError(message);
+  }
+
+  const message = `Server at ${options.hostAddress} reports maximum wire version ${
+    JSON.stringify(hello.maxWireVersion) ?? 0
+  }, but this version of the Node.js Driver requires at least ${MIN_SUPPORTED_WIRE_VERSION} (MongoDB ${MIN_SUPPORTED_SERVER_VERSION})`;
+  return new MongoCompatibilityError(message);
+}
+
+export async function performInitialHandshake(
+  conn: Connection,
+  options: ConnectionOptions
+): Promise<void> {
+  const credentials = options.credentials;
+
+  if (credentials) {
+    if (
+      !(credentials.mechanism === AuthMechanism.MONGODB_DEFAULT) &&
+      !options.authProviders.getOrCreateProvider(
+        credentials.mechanism,
+        credentials.mechanismProperties
+      )
+    ) {
+      throw new MongoInvalidArgumentError(`AuthMechanism '${credentials.mechanism}' not supported`);
+    }
+  }
+
+  const authContext = new AuthContext(conn, credentials, options);
+  conn.authContext = authContext;
+
+  const handshakeDoc = await prepareHandshakeDocument(authContext);
+
+  // @ts-expect-error: TODO(NODE-5141): The options need to be filtered properly, Connection options differ from Command options
+  const handshakeOptions: CommandOptions = { ...options, raw: false };
+  if (typeof options.connectTimeoutMS === 'number') {
+    // The handshake technically is a monitoring check, so its socket timeout should be connectTimeoutMS
+    handshakeOptions.socketTimeoutMS = options.connectTimeoutMS;
+  }
+
+  const start = new Date().getTime();
+
+  const response = await executeHandshake(handshakeDoc, handshakeOptions);
+
+  if (!('isWritablePrimary' in response)) {
+    // Provide hello-style response document.
+    response.isWritablePrimary = response[LEGACY_HELLO_COMMAND];
+  }
+
+  if (response.helloOk) {
+    conn.helloOk = true;
+  }
+
+  const supportedServerErr = checkSupportedServer(response, options);
+  if (supportedServerErr) {
+    throw supportedServerErr;
+  }
+
+  if (options.loadBalanced) {
+    if (!response.serviceId) {
+      throw new MongoCompatibilityError(
+        'Driver attempted to initialize in load balancing mode, ' +
+          'but the server does not support this mode.'
+      );
+    }
+  }
+
+  // NOTE: This is metadata attached to the connection while porting away from
+  //       handshake being done in the `Server` class. Likely, it should be
+  //       relocated, or at very least restructured.
+  conn.hello = response;
+  conn.lastHelloMS = new Date().getTime() - start;
+
+  if (!response.arbiterOnly && credentials) {
+    // store the response on auth context
+    authContext.response = response;
+
+    const resolvedCredentials = credentials.resolveAuthMechanism(response);
+    const provider = options.authProviders.getOrCreateProvider(
+      resolvedCredentials.mechanism,
+      resolvedCredentials.mechanismProperties
+    );
+    if (!provider) {
+      throw new MongoInvalidArgumentError(
+        `No AuthProvider for ${resolvedCredentials.mechanism} defined.`
+      );
+    }
+
+    try {
+      await provider.auth(authContext);
+    } catch (error) {
+      if (error instanceof MongoError) {
+        error.addErrorLabel(MongoErrorLabel.HandshakeError);
+        if (needsRetryableWriteLabel(error, response.maxWireVersion, conn.description.type)) {
+          error.addErrorLabel(MongoErrorLabel.RetryableWriteError);
+        }
+      }
+      throw error;
+    }
+  }
+
+  // Connection establishment is socket creation (tcp handshake, tls handshake, MongoDB handshake (saslStart, saslContinue))
+  // Once connection is established, command logging can log events (if enabled)
+  conn.established = true;
+
+  async function executeHandshake(handshakeDoc: Document, handshakeOptions: CommandOptions) {
+    try {
+      const handshakeResponse = await conn.command(
+        ns('admin.$cmd'),
+        handshakeDoc,
+        handshakeOptions
+      );
+      return handshakeResponse;
+    } catch (error) {
+      if (error instanceof MongoError) {
+        error.addErrorLabel(MongoErrorLabel.HandshakeError);
+      }
+      throw error;
+    }
+  }
+}
+
+/**
+ * HandshakeDocument used during authentication.
+ * @internal
+ */
+export interface HandshakeDocument extends Document {
+  /**
+   * @deprecated Use hello instead
+   */
+  ismaster?: boolean;
+  hello?: boolean;
+  helloOk?: boolean;
+  client: Document;
+  compression: string[];
+  saslSupportedMechs?: string;
+  loadBalanced?: boolean;
+}
+
+/**
+ * @internal
+ *
+ * This function is only exposed for testing purposes.
+ */
+export async function prepareHandshakeDocument(
+  authContext: AuthContext
+): Promise<HandshakeDocument> {
+  const options = authContext.options;
+  const compressors = options.compressors ? options.compressors : [];
+  const { serverApi } = authContext.connection;
+  const clientMetadata: Document = await options.extendedMetadata;
+
+  const handshakeDoc: HandshakeDocument = {
+    [serverApi?.version || options.loadBalanced === true ? 'hello' : LEGACY_HELLO_COMMAND]: 1,
+    helloOk: true,
+    client: clientMetadata,
+    compression: compressors
+  };
+
+  if (options.loadBalanced === true) {
+    handshakeDoc.loadBalanced = true;
+  }
+
+  const credentials = authContext.credentials;
+  if (credentials) {
+    if (credentials.mechanism === AuthMechanism.MONGODB_DEFAULT && credentials.username) {
+      handshakeDoc.saslSupportedMechs = `${credentials.source}.${credentials.username}`;
+
+      const provider = authContext.options.authProviders.getOrCreateProvider(
+        AuthMechanism.MONGODB_SCRAM_SHA256,
+        credentials.mechanismProperties
+      );
+      if (!provider) {
+        // This auth mechanism is always present.
+        throw new MongoInvalidArgumentError(
+          `No AuthProvider for ${AuthMechanism.MONGODB_SCRAM_SHA256} defined.`
+        );
+      }
+      return await provider.prepare(handshakeDoc, authContext);
+    }
+    const provider = authContext.options.authProviders.getOrCreateProvider(
+      credentials.mechanism,
+      credentials.mechanismProperties
+    );
+    if (!provider) {
+      throw new MongoInvalidArgumentError(`No AuthProvider for ${credentials.mechanism} defined.`);
+    }
+    return await provider.prepare(handshakeDoc, authContext);
+  }
+  return handshakeDoc;
+}
+
+/** @public */
+export const LEGAL_TLS_SOCKET_OPTIONS = [
+  'allowPartialTrustChain',
+  'ALPNProtocols',
+  'ca',
+  'cert',
+  'checkServerIdentity',
+  'ciphers',
+  'crl',
+  'ecdhCurve',
+  'key',
+  'minDHSize',
+  'passphrase',
+  'pfx',
+  'rejectUnauthorized',
+  'secureContext',
+  'secureProtocol',
+  'servername',
+  'session'
+] as const;
+
+/** @public */
+export const LEGAL_TCP_SOCKET_OPTIONS = [
+  'autoSelectFamily',
+  'autoSelectFamilyAttemptTimeout',
+  'family',
+  'hints',
+  'localAddress',
+  'localPort',
+  'lookup'
+] as const;
+
+function parseConnectOptions(options: ConnectionOptions): SocketConnectOpts {
+  const hostAddress = options.hostAddress;
+  if (!hostAddress) throw new MongoInvalidArgumentError('Option "hostAddress" is required');
+
+  const result: Partial<net.TcpNetConnectOpts & net.IpcNetConnectOpts> = {};
+  for (const name of LEGAL_TCP_SOCKET_OPTIONS) {
+    if (options[name] != null) {
+      (result as Document)[name] = options[name];
+    }
+  }
+
+  if (typeof hostAddress.socketPath === 'string') {
+    result.path = hostAddress.socketPath;
+    return result as net.IpcNetConnectOpts;
+  } else if (typeof hostAddress.host === 'string') {
+    result.host = hostAddress.host;
+    result.port = hostAddress.port;
+    return result as net.TcpNetConnectOpts;
+  } else {
+    // This should never happen since we set up HostAddresses
+    // But if we don't throw here the socket could hang until timeout
+    // TODO(NODE-3483)
+    throw new MongoRuntimeError(`Unexpected HostAddress ${JSON.stringify(hostAddress)}`);
+  }
+}
+
+type MakeConnectionOptions = ConnectionOptions & { existingSocket?: Stream };
+
+function parseSslOptions(options: MakeConnectionOptions): TLSConnectionOpts {
+  const result: TLSConnectionOpts = parseConnectOptions(options);
+  // Merge in valid SSL options
+  for (const name of LEGAL_TLS_SOCKET_OPTIONS) {
+    if (options[name] != null) {
+      (result as Document)[name] = options[name];
+    }
+  }
+
+  if (options.existingSocket) {
+    result.socket = options.existingSocket;
+  }
+
+  // Set default sni servername to be the same as host
+  if (result.servername == null && result.host && !net.isIP(result.host)) {
+    result.servername = result.host;
+  }
+
+  return result;
+}
+
+export async function makeSocket(options: MakeConnectionOptions): Promise<Stream> {
+  const useTLS = options.tls ?? false;
+  const noDelay = options.noDelay ?? true;
+  const connectTimeoutMS = options.connectTimeoutMS ?? 30000;
+  const existingSocket = options.existingSocket;
+
+  let socket: Stream;
+
+  if (options.proxyHost != null) {
+    // Currently, only Socks5 is supported.
+    return await makeSocks5Connection({
+      ...options,
+      connectTimeoutMS // Should always be present for Socks5
+    });
+  }
+
+  if (useTLS) {
+    const tlsSocket = tls.connect(parseSslOptions(options));
+    if (typeof tlsSocket.disableRenegotiation === 'function') {
+      tlsSocket.disableRenegotiation();
+    }
+    socket = tlsSocket;
+  } else if (existingSocket) {
+    // In the TLS case, parseSslOptions() sets options.socket to existingSocket,
+    // so we only need to handle the non-TLS case here (where existingSocket
+    // gives us all we need out of the box).
+    socket = existingSocket;
+  } else {
+    socket = net.createConnection(parseConnectOptions(options));
+  }
+
+  socket.setKeepAlive(true, 300000);
+  socket.setTimeout(connectTimeoutMS);
+  socket.setNoDelay(noDelay);
+
+  let cancellationHandler: ((err: Error) => void) | null = null;
+
+  const { promise: connectedSocket, resolve, reject } = promiseWithResolvers<Stream>();
+  if (existingSocket) {
+    resolve(socket);
+  } else {
+    const start = performance.now();
+    const connectEvent = useTLS ? 'secureConnect' : 'connect';
+    socket
+      .once(connectEvent, () => resolve(socket))
+      .once('error', cause =>
+        reject(new MongoNetworkError(MongoError.buildErrorMessage(cause), { cause }))
+      )
+      .once('timeout', () => {
+        reject(
+          new MongoNetworkTimeoutError(
+            `Socket '${connectEvent}' timed out after ${(performance.now() - start) | 0}ms (connectTimeoutMS: ${connectTimeoutMS})`
+          )
+        );
+      })
+      .once('close', () =>
+        reject(
+          new MongoNetworkError(
+            `Socket closed after ${(performance.now() - start) | 0} during connection establishment`
+          )
+        )
+      );
+
+    if (options.cancellationToken != null) {
+      cancellationHandler = () =>
+        reject(
+          new MongoNetworkError(
+            `Socket connection establishment was cancelled after ${(performance.now() - start) | 0}`
+          )
+        );
+      options.cancellationToken.once('cancel', cancellationHandler);
+    }
+  }
+
+  try {
+    socket = await connectedSocket;
+    return socket;
+  } catch (error) {
+    socket.destroy();
+    throw error;
+  } finally {
+    socket.setTimeout(0);
+    socket.removeAllListeners();
+    if (cancellationHandler != null) {
+      options.cancellationToken?.removeListener('cancel', cancellationHandler);
+    }
+  }
+}
+
+let socks: SocksLib | null = null;
+function loadSocks() {
+  if (socks == null) {
+    const socksImport = getSocks();
+    if ('kModuleError' in socksImport) {
+      throw socksImport.kModuleError;
+    }
+    socks = socksImport;
+  }
+  return socks;
+}
+
+async function makeSocks5Connection(options: MakeConnectionOptions): Promise<Stream> {
+  const hostAddress = HostAddress.fromHostPort(
+    options.proxyHost ?? '', // proxyHost is guaranteed to set here
+    options.proxyPort ?? 1080
+  );
+
+  // First, connect to the proxy server itself:
+  const rawSocket = await makeSocket({
+    ...options,
+    hostAddress,
+    tls: false,
+    proxyHost: undefined
+  });
+
+  const destination = parseConnectOptions(options) as net.TcpNetConnectOpts;
+  if (typeof destination.host !== 'string' || typeof destination.port !== 'number') {
+    throw new MongoInvalidArgumentError('Can only make Socks5 connections to TCP hosts');
+  }
+
+  socks ??= loadSocks();
+
+  let existingSocket: Stream;
+
+  try {
+    // Then, establish the Socks5 proxy connection:
+    const connection = await socks.SocksClient.createConnection({
+      existing_socket: rawSocket,
+      timeout: options.connectTimeoutMS,
+      command: 'connect',
+      destination: {
+        host: destination.host,
+        port: destination.port
+      },
+      proxy: {
+        // host and port are ignored because we pass existing_socket
+        host: 'iLoveJavaScript',
+        port: 0,
+        type: 5,
+        userId: options.proxyUsername || undefined,
+        password: options.proxyPassword || undefined
+      }
+    });
+    existingSocket = connection.socket;
+  } catch (cause) {
+    throw new MongoNetworkError(MongoError.buildErrorMessage(cause), { cause });
+  }
+
+  // Finally, now treat the resulting duplex stream as the
+  // socket over which we send and receive wire protocol messages:
+  return await makeSocket({ ...options, existingSocket, proxyHost: undefined });
+}
diff --git a/backend/node_modules/mongodb/src/cmap/connection.ts b/backend/node_modules/mongodb/src/cmap/connection.ts
new file mode 100644
index 0000000..6df81b3
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/connection.ts
@@ -0,0 +1,902 @@
+import { type Readable, Transform, type TransformCallback } from 'stream';
+import { clearTimeout, setTimeout } from 'timers';
+
+import {
+  type BSONSerializeOptions,
+  deserialize,
+  type DeserializeOptions,
+  type Document,
+  type ObjectId
+} from '../bson';
+import { type AutoEncrypter } from '../client-side-encryption/auto_encrypter';
+import {
+  CLOSE,
+  CLUSTER_TIME_RECEIVED,
+  COMMAND_FAILED,
+  COMMAND_STARTED,
+  COMMAND_SUCCEEDED,
+  kDecorateResult,
+  PINNED,
+  UNPINNED
+} from '../constants';
+import {
+  MongoCompatibilityError,
+  MONGODB_ERROR_CODES,
+  MongoMissingDependencyError,
+  MongoNetworkError,
+  MongoNetworkTimeoutError,
+  MongoOperationTimeoutError,
+  MongoParseError,
+  MongoServerError,
+  MongoUnexpectedServerResponseError
+} from '../error';
+import type { ServerApi, SupportedNodeConnectionOptions } from '../mongo_client';
+import { type MongoClientAuthProviders } from '../mongo_client_auth_providers';
+import { MongoLoggableComponent, type MongoLogger, SeverityLevel } from '../mongo_logger';
+import { type CancellationToken, TypedEventEmitter } from '../mongo_types';
+import { ReadPreference, type ReadPreferenceLike } from '../read_preference';
+import { ServerType } from '../sdam/common';
+import { applySession, type ClientSession, updateSessionFromResponse } from '../sessions';
+import { type TimeoutContext, TimeoutError } from '../timeout';
+import {
+  BufferPool,
+  calculateDurationInMs,
+  type Callback,
+  decorateDecryptionResult,
+  HostAddress,
+  maxWireVersion,
+  type MongoDBNamespace,
+  now,
+  once,
+  squashError,
+  uuidV4
+} from '../utils';
+import type { WriteConcern } from '../write_concern';
+import type { AuthContext } from './auth/auth_provider';
+import type { MongoCredentials } from './auth/mongo_credentials';
+import {
+  CommandFailedEvent,
+  CommandStartedEvent,
+  CommandSucceededEvent
+} from './command_monitoring_events';
+import {
+  OpCompressedRequest,
+  OpMsgRequest,
+  type OpMsgResponse,
+  OpQueryRequest,
+  type OpReply,
+  type WriteProtocolMessageType
+} from './commands';
+import type { Stream } from './connect';
+import type { ClientMetadata } from './handshake/client_metadata';
+import { StreamDescription, type StreamDescriptionOptions } from './stream_description';
+import { type CompressorName, decompressResponse } from './wire_protocol/compression';
+import { onData } from './wire_protocol/on_data';
+import {
+  CursorResponse,
+  MongoDBResponse,
+  type MongoDBResponseConstructor
+} from './wire_protocol/responses';
+import { getReadPreference, isSharded } from './wire_protocol/shared';
+
+/** @internal */
+export interface CommandOptions extends BSONSerializeOptions {
+  secondaryOk?: boolean;
+  /** Specify read preference if command supports it */
+  readPreference?: ReadPreferenceLike;
+  monitoring?: boolean;
+  socketTimeoutMS?: number;
+  /** Session to use for the operation */
+  session?: ClientSession;
+  documentsReturnedIn?: string;
+  noResponse?: boolean;
+  omitReadPreference?: boolean;
+  omitMaxTimeMS?: boolean;
+
+  // TODO(NODE-2802): Currently the CommandOptions take a property willRetryWrite which is a hint
+  // from executeOperation that the txnNum should be applied to this command.
+  // Applying a session to a command should happen as part of command construction,
+  // most likely in the CommandOperation#executeCommand method, where we have access to
+  // the details we need to determine if a txnNum should also be applied.
+  willRetryWrite?: boolean;
+
+  writeConcern?: WriteConcern;
+
+  directConnection?: boolean;
+
+  /** @internal */
+  timeoutContext?: TimeoutContext;
+}
+
+/** @public */
+export interface ProxyOptions {
+  proxyHost?: string;
+  proxyPort?: number;
+  proxyUsername?: string;
+  proxyPassword?: string;
+}
+
+/** @public */
+export interface ConnectionOptions
+  extends SupportedNodeConnectionOptions,
+    StreamDescriptionOptions,
+    ProxyOptions {
+  // Internal creation info
+  id: number | '<monitor>';
+  generation: number;
+  hostAddress: HostAddress;
+  /** @internal */
+  autoEncrypter?: AutoEncrypter;
+  serverApi?: ServerApi;
+  monitorCommands: boolean;
+  /** @internal */
+  connectionType?: any;
+  credentials?: MongoCredentials;
+  /** @internal */
+  authProviders: MongoClientAuthProviders;
+  connectTimeoutMS?: number;
+  tls: boolean;
+  noDelay?: boolean;
+  socketTimeoutMS?: number;
+  cancellationToken?: CancellationToken;
+  metadata: ClientMetadata;
+  /** @internal */
+  extendedMetadata: Promise<Document>;
+  /** @internal */
+  mongoLogger?: MongoLogger | undefined;
+}
+
+/** @public */
+export type ConnectionEvents = {
+  commandStarted(event: CommandStartedEvent): void;
+  commandSucceeded(event: CommandSucceededEvent): void;
+  commandFailed(event: CommandFailedEvent): void;
+  clusterTimeReceived(clusterTime: Document): void;
+  close(): void;
+  pinned(pinType: string): void;
+  unpinned(pinType: string): void;
+};
+
+/** @internal */
+export function hasSessionSupport(conn: Connection): boolean {
+  const description = conn.description;
+  return description.logicalSessionTimeoutMinutes != null;
+}
+
+function streamIdentifier(stream: Stream, options: ConnectionOptions): string {
+  if (options.proxyHost) {
+    // If proxy options are specified, the properties of `stream` itself
+    // will not accurately reflect what endpoint this is connected to.
+    return options.hostAddress.toString();
+  }
+
+  const { remoteAddress, remotePort } = stream;
+  if (typeof remoteAddress === 'string' && typeof remotePort === 'number') {
+    return HostAddress.fromHostPort(remoteAddress, remotePort).toString();
+  }
+
+  return uuidV4().toString('hex');
+}
+
+/** @internal */
+export class Connection extends TypedEventEmitter<ConnectionEvents> {
+  public id: number | '<monitor>';
+  public address: string;
+  public lastHelloMS = -1;
+  public serverApi?: ServerApi;
+  public helloOk = false;
+  public authContext?: AuthContext;
+  public delayedTimeoutId: NodeJS.Timeout | null = null;
+  public generation: number;
+  public accessToken?: string;
+  public readonly description: Readonly<StreamDescription>;
+  /**
+   * Represents if the connection has been established:
+   *  - TCP handshake
+   *  - TLS negotiated
+   *  - mongodb handshake (saslStart, saslContinue), includes authentication
+   *
+   * Once connection is established, command logging can log events (if enabled)
+   */
+  public established: boolean;
+  /** Indicates that the connection (including underlying TCP socket) has been closed. */
+  public closed = false;
+
+  private lastUseTime: number;
+  private clusterTime: Document | null = null;
+  private error: Error | null = null;
+  private dataEvents: AsyncGenerator<Buffer, void, void> | null = null;
+
+  private readonly socketTimeoutMS: number;
+  private readonly monitorCommands: boolean;
+  private readonly socket: Stream;
+  private readonly messageStream: Readable;
+
+  /** @event */
+  static readonly COMMAND_STARTED = COMMAND_STARTED;
+  /** @event */
+  static readonly COMMAND_SUCCEEDED = COMMAND_SUCCEEDED;
+  /** @event */
+  static readonly COMMAND_FAILED = COMMAND_FAILED;
+  /** @event */
+  static readonly CLUSTER_TIME_RECEIVED = CLUSTER_TIME_RECEIVED;
+  /** @event */
+  static readonly CLOSE = CLOSE;
+  /** @event */
+  static readonly PINNED = PINNED;
+  /** @event */
+  static readonly UNPINNED = UNPINNED;
+
+  constructor(stream: Stream, options: ConnectionOptions) {
+    super();
+
+    this.socket = stream;
+    this.id = options.id;
+    this.address = streamIdentifier(stream, options);
+    this.socketTimeoutMS = options.socketTimeoutMS ?? 0;
+    this.monitorCommands = options.monitorCommands;
+    this.serverApi = options.serverApi;
+    this.mongoLogger = options.mongoLogger;
+    this.established = false;
+
+    this.description = new StreamDescription(this.address, options);
+    this.generation = options.generation;
+    this.lastUseTime = now();
+
+    this.messageStream = this.socket
+      .on('error', this.onError.bind(this))
+      .pipe(new SizedMessageTransform({ connection: this }))
+      .on('error', this.onError.bind(this));
+    this.socket.on('close', this.onClose.bind(this));
+    this.socket.on('timeout', this.onTimeout.bind(this));
+
+    this.messageStream.pause();
+  }
+
+  public get hello() {
+    return this.description.hello;
+  }
+
+  // the `connect` method stores the result of the handshake hello on the connection
+  public set hello(response: Document | null) {
+    this.description.receiveResponse(response);
+    Object.freeze(this.description);
+  }
+
+  public get serviceId(): ObjectId | undefined {
+    return this.hello?.serviceId;
+  }
+
+  public get loadBalanced(): boolean {
+    return this.description.loadBalanced;
+  }
+
+  public get idleTime(): number {
+    return calculateDurationInMs(this.lastUseTime);
+  }
+
+  private get hasSessionSupport(): boolean {
+    return this.description.logicalSessionTimeoutMinutes != null;
+  }
+
+  private get supportsOpMsg(): boolean {
+    return (
+      this.description != null &&
+      maxWireVersion(this) >= 6 &&
+      !this.description.__nodejs_mock_server__
+    );
+  }
+
+  private get shouldEmitAndLogCommand(): boolean {
+    return (
+      (this.monitorCommands ||
+        (this.established &&
+          !this.authContext?.reauthenticating &&
+          this.mongoLogger?.willLog(MongoLoggableComponent.COMMAND, SeverityLevel.DEBUG))) ??
+      false
+    );
+  }
+
+  public markAvailable(): void {
+    this.lastUseTime = now();
+  }
+
+  public onError(error: Error) {
+    this.cleanup(error);
+  }
+
+  private onClose() {
+    const message = `connection ${this.id} to ${this.address} closed`;
+    this.cleanup(new MongoNetworkError(message));
+  }
+
+  private onTimeout() {
+    this.delayedTimeoutId = setTimeout(() => {
+      const message = `connection ${this.id} to ${this.address} timed out`;
+      const beforeHandshake = this.hello == null;
+      this.cleanup(new MongoNetworkTimeoutError(message, { beforeHandshake }));
+    }, 1).unref(); // No need for this timer to hold the event loop open
+  }
+
+  public destroy(): void {
+    if (this.closed) {
+      return;
+    }
+
+    // load balanced mode requires that these listeners remain on the connection
+    // after cleanup on timeouts, errors or close so we remove them before calling
+    // cleanup.
+    this.removeAllListeners(Connection.PINNED);
+    this.removeAllListeners(Connection.UNPINNED);
+    const message = `connection ${this.id} to ${this.address} closed`;
+    this.cleanup(new MongoNetworkError(message));
+  }
+
+  /**
+   * A method that cleans up the connection.  When `force` is true, this method
+   * forcibly destroys the socket.
+   *
+   * If an error is provided, any in-flight operations will be closed with the error.
+   *
+   * This method does nothing if the connection is already closed.
+   */
+  private cleanup(error: Error): void {
+    if (this.closed) {
+      return;
+    }
+
+    this.socket.destroy();
+    this.error = error;
+
+    this.dataEvents?.throw(error).then(undefined, squashError);
+    this.closed = true;
+    this.emit(Connection.CLOSE);
+  }
+
+  private prepareCommand(db: string, command: Document, options: CommandOptions) {
+    let cmd = { ...command };
+
+    const readPreference = getReadPreference(options);
+    const session = options?.session;
+
+    let clusterTime = this.clusterTime;
+
+    if (this.serverApi) {
+      const { version, strict, deprecationErrors } = this.serverApi;
+      cmd.apiVersion = version;
+      if (strict != null) cmd.apiStrict = strict;
+      if (deprecationErrors != null) cmd.apiDeprecationErrors = deprecationErrors;
+    }
+
+    if (this.hasSessionSupport && session) {
+      if (
+        session.clusterTime &&
+        clusterTime &&
+        session.clusterTime.clusterTime.greaterThan(clusterTime.clusterTime)
+      ) {
+        clusterTime = session.clusterTime;
+      }
+
+      const sessionError = applySession(session, cmd, options);
+      if (sessionError) throw sessionError;
+    } else if (session?.explicit) {
+      throw new MongoCompatibilityError('Current topology does not support sessions');
+    }
+
+    // if we have a known cluster time, gossip it
+    if (clusterTime) {
+      cmd.$clusterTime = clusterTime;
+    }
+
+    // For standalone, drivers MUST NOT set $readPreference.
+    if (this.description.type !== ServerType.Standalone) {
+      if (
+        !isSharded(this) &&
+        !this.description.loadBalanced &&
+        this.supportsOpMsg &&
+        options.directConnection === true &&
+        readPreference?.mode === 'primary'
+      ) {
+        // For mongos and load balancers with 'primary' mode, drivers MUST NOT set $readPreference.
+        // For all other types with a direct connection, if the read preference is 'primary'
+        // (driver sets 'primary' as default if no read preference is configured),
+        // the $readPreference MUST be set to 'primaryPreferred'
+        // to ensure that any server type can handle the request.
+        cmd.$readPreference = ReadPreference.primaryPreferred.toJSON();
+      } else if (isSharded(this) && !this.supportsOpMsg && readPreference?.mode !== 'primary') {
+        // When sending a read operation via OP_QUERY and the $readPreference modifier,
+        // the query MUST be provided using the $query modifier.
+        cmd = {
+          $query: cmd,
+          $readPreference: readPreference.toJSON()
+        };
+      } else if (readPreference?.mode !== 'primary') {
+        // For mode 'primary', drivers MUST NOT set $readPreference.
+        // For all other read preference modes (i.e. 'secondary', 'primaryPreferred', ...),
+        // drivers MUST set $readPreference
+        cmd.$readPreference = readPreference.toJSON();
+      }
+    }
+
+    const commandOptions = {
+      numberToSkip: 0,
+      numberToReturn: -1,
+      checkKeys: false,
+      // This value is not overridable
+      secondaryOk: readPreference.secondaryOk(),
+      ...options
+    };
+
+    options.timeoutContext?.addMaxTimeMSToCommand(cmd, options);
+
+    const message = this.supportsOpMsg
+      ? new OpMsgRequest(db, cmd, commandOptions)
+      : new OpQueryRequest(db, cmd, commandOptions);
+
+    return message;
+  }
+
+  private async *sendWire(
+    message: WriteProtocolMessageType,
+    options: CommandOptions,
+    responseType?: MongoDBResponseConstructor
+  ): AsyncGenerator<MongoDBResponse> {
+    this.throwIfAborted();
+
+    const timeout =
+      options.socketTimeoutMS ??
+      options?.timeoutContext?.getSocketTimeoutMS() ??
+      this.socketTimeoutMS;
+    this.socket.setTimeout(timeout);
+
+    try {
+      await this.writeCommand(message, {
+        agreedCompressor: this.description.compressor ?? 'none',
+        zlibCompressionLevel: this.description.zlibCompressionLevel,
+        timeoutContext: options.timeoutContext
+      });
+
+      if (options.noResponse || message.moreToCome) {
+        yield MongoDBResponse.empty;
+        return;
+      }
+
+      this.throwIfAborted();
+
+      if (
+        options.timeoutContext?.csotEnabled() &&
+        options.timeoutContext.minRoundTripTime != null &&
+        options.timeoutContext.remainingTimeMS < options.timeoutContext.minRoundTripTime
+      ) {
+        throw new MongoOperationTimeoutError(
+          'Server roundtrip time is greater than the time remaining'
+        );
+      }
+
+      for await (const response of this.readMany({ timeoutContext: options.timeoutContext })) {
+        this.socket.setTimeout(0);
+        const bson = response.parse();
+
+        const document = (responseType ?? MongoDBResponse).make(bson);
+
+        yield document;
+        this.throwIfAborted();
+
+        this.socket.setTimeout(timeout);
+      }
+    } finally {
+      this.socket.setTimeout(0);
+    }
+  }
+
+  private async *sendCommand(
+    ns: MongoDBNamespace,
+    command: Document,
+    options: CommandOptions,
+    responseType?: MongoDBResponseConstructor
+  ) {
+    const message = this.prepareCommand(ns.db, command, options);
+    let started = 0;
+    if (this.shouldEmitAndLogCommand) {
+      started = now();
+      this.emitAndLogCommand(
+        this.monitorCommands,
+        Connection.COMMAND_STARTED,
+        message.databaseName,
+        this.established,
+        new CommandStartedEvent(this, message, this.description.serverConnectionId)
+      );
+    }
+
+    // If `documentsReturnedIn` not set or raw is not enabled, use input bson options
+    // Otherwise, support raw flag. Raw only works for cursors that hardcode firstBatch/nextBatch fields
+    const bsonOptions: DeserializeOptions =
+      options.documentsReturnedIn == null || !options.raw
+        ? options
+        : {
+            ...options,
+            raw: false,
+            fieldsAsRaw: { [options.documentsReturnedIn]: true }
+          };
+
+    /** MongoDBResponse instance or subclass */
+    let document: MongoDBResponse | undefined = undefined;
+    /** Cached result of a toObject call */
+    let object: Document | undefined = undefined;
+    try {
+      this.throwIfAborted();
+      for await (document of this.sendWire(message, options, responseType)) {
+        object = undefined;
+        if (options.session != null) {
+          updateSessionFromResponse(options.session, document);
+        }
+
+        if (document.$clusterTime) {
+          this.clusterTime = document.$clusterTime;
+          this.emit(Connection.CLUSTER_TIME_RECEIVED, document.$clusterTime);
+        }
+
+        if (document.ok === 0) {
+          if (options.timeoutContext?.csotEnabled() && document.isMaxTimeExpiredError) {
+            throw new MongoOperationTimeoutError('Server reported a timeout error', {
+              cause: new MongoServerError((object ??= document.toObject(bsonOptions)))
+            });
+          }
+          throw new MongoServerError((object ??= document.toObject(bsonOptions)));
+        }
+
+        if (this.shouldEmitAndLogCommand) {
+          this.emitAndLogCommand(
+            this.monitorCommands,
+            Connection.COMMAND_SUCCEEDED,
+            message.databaseName,
+            this.established,
+            new CommandSucceededEvent(
+              this,
+              message,
+              options.noResponse
+                ? undefined
+                : message.moreToCome
+                  ? { ok: 1 }
+                  : (object ??= document.toObject(bsonOptions)),
+              started,
+              this.description.serverConnectionId
+            )
+          );
+        }
+
+        if (responseType == null) {
+          yield (object ??= document.toObject(bsonOptions));
+        } else {
+          yield document;
+        }
+
+        this.throwIfAborted();
+      }
+    } catch (error) {
+      if (this.shouldEmitAndLogCommand) {
+        this.emitAndLogCommand(
+          this.monitorCommands,
+          Connection.COMMAND_FAILED,
+          message.databaseName,
+          this.established,
+          new CommandFailedEvent(this, message, error, started, this.description.serverConnectionId)
+        );
+      }
+      throw error;
+    }
+  }
+
+  public async command<T extends MongoDBResponseConstructor>(
+    ns: MongoDBNamespace,
+    command: Document,
+    options: CommandOptions | undefined,
+    responseType: T
+  ): Promise<InstanceType<T>>;
+
+  public async command<T extends MongoDBResponseConstructor>(
+    ns: MongoDBNamespace,
+    command: Document,
+    options: CommandOptions | undefined,
+    responseType: T | undefined
+  ): Promise<typeof responseType extends undefined ? Document : InstanceType<T>>;
+
+  public async command(
+    ns: MongoDBNamespace,
+    command: Document,
+    options?: CommandOptions
+  ): Promise<Document>;
+
+  public async command(
+    ns: MongoDBNamespace,
+    command: Document,
+    options: CommandOptions = {},
+    responseType?: MongoDBResponseConstructor
+  ): Promise<Document> {
+    this.throwIfAborted();
+    for await (const document of this.sendCommand(ns, command, options, responseType)) {
+      if (options.timeoutContext?.csotEnabled()) {
+        if (MongoDBResponse.is(document)) {
+          if (document.isMaxTimeExpiredError) {
+            throw new MongoOperationTimeoutError('Server reported a timeout error', {
+              cause: new MongoServerError(document.toObject())
+            });
+          }
+        } else {
+          if (
+            (Array.isArray(document?.writeErrors) &&
+              document.writeErrors.some(
+                error => error?.code === MONGODB_ERROR_CODES.MaxTimeMSExpired
+              )) ||
+            document?.writeConcernError?.code === MONGODB_ERROR_CODES.MaxTimeMSExpired
+          ) {
+            throw new MongoOperationTimeoutError('Server reported a timeout error', {
+              cause: new MongoServerError(document)
+            });
+          }
+        }
+      }
+
+      return document;
+    }
+    throw new MongoUnexpectedServerResponseError('Unable to get response from server');
+  }
+
+  public exhaustCommand(
+    ns: MongoDBNamespace,
+    command: Document,
+    options: CommandOptions,
+    replyListener: Callback
+  ) {
+    const exhaustLoop = async () => {
+      this.throwIfAborted();
+      for await (const reply of this.sendCommand(ns, command, options)) {
+        replyListener(undefined, reply);
+        this.throwIfAborted();
+      }
+      throw new MongoUnexpectedServerResponseError('Server ended moreToCome unexpectedly');
+    };
+
+    exhaustLoop().then(undefined, replyListener);
+  }
+
+  private throwIfAborted() {
+    if (this.error) throw this.error;
+  }
+
+  /**
+   * @internal
+   *
+   * Writes an OP_MSG or OP_QUERY request to the socket, optionally compressing the command. This method
+   * waits until the socket's buffer has emptied (the Nodejs socket `drain` event has fired).
+   */
+  private async writeCommand(
+    command: WriteProtocolMessageType,
+    options: {
+      agreedCompressor?: CompressorName;
+      zlibCompressionLevel?: number;
+      timeoutContext?: TimeoutContext;
+    }
+  ): Promise<void> {
+    const finalCommand =
+      options.agreedCompressor === 'none' || !OpCompressedRequest.canCompress(command)
+        ? command
+        : new OpCompressedRequest(command, {
+            agreedCompressor: options.agreedCompressor ?? 'none',
+            zlibCompressionLevel: options.zlibCompressionLevel ?? 0
+          });
+
+    const buffer = Buffer.concat(await finalCommand.toBin());
+
+    if (options.timeoutContext?.csotEnabled()) {
+      if (
+        options.timeoutContext.minRoundTripTime != null &&
+        options.timeoutContext.remainingTimeMS < options.timeoutContext.minRoundTripTime
+      ) {
+        throw new MongoOperationTimeoutError(
+          'Server roundtrip time is greater than the time remaining'
+        );
+      }
+    }
+
+    if (this.socket.write(buffer)) return;
+
+    const drainEvent = once<void>(this.socket, 'drain');
+    const timeout = options?.timeoutContext?.timeoutForSocketWrite;
+    if (timeout) {
+      try {
+        return await Promise.race([drainEvent, timeout]);
+      } catch (error) {
+        let err = error;
+        if (TimeoutError.is(error)) {
+          err = new MongoOperationTimeoutError('Timed out at socket write');
+          this.cleanup(err);
+        }
+        throw error;
+      } finally {
+        timeout.clear();
+      }
+    }
+    return await drainEvent;
+  }
+
+  /**
+   * @internal
+   *
+   * Returns an async generator that yields full wire protocol messages from the underlying socket.  This function
+   * yields messages until `moreToCome` is false or not present in a response, or the caller cancels the request
+   * by calling `return` on the generator.
+   *
+   * Note that `for-await` loops call `return` automatically when the loop is exited.
+   */
+  private async *readMany(options: {
+    timeoutContext?: TimeoutContext;
+  }): AsyncGenerator<OpMsgResponse | OpReply> {
+    try {
+      this.dataEvents = onData(this.messageStream, options);
+      this.messageStream.resume();
+
+      for await (const message of this.dataEvents) {
+        const response = await decompressResponse(message);
+        yield response;
+
+        if (!response.moreToCome) {
+          return;
+        }
+      }
+    } catch (readError) {
+      const err = readError;
+      if (TimeoutError.is(readError)) {
+        const error = new MongoOperationTimeoutError(
+          `Timed out during socket read (${readError.duration}ms)`
+        );
+        this.dataEvents = null;
+        this.onError(error);
+        throw error;
+      }
+      throw err;
+    } finally {
+      this.dataEvents = null;
+      this.messageStream.pause();
+      this.throwIfAborted();
+    }
+  }
+}
+
+/** @internal */
+export class SizedMessageTransform extends Transform {
+  bufferPool: BufferPool;
+  connection: Connection;
+
+  constructor({ connection }: { connection: Connection }) {
+    super({ writableObjectMode: false, readableObjectMode: true });
+    this.bufferPool = new BufferPool();
+    this.connection = connection;
+  }
+
+  override _transform(chunk: Buffer, encoding: unknown, callback: TransformCallback): void {
+    if (this.connection.delayedTimeoutId != null) {
+      clearTimeout(this.connection.delayedTimeoutId);
+      this.connection.delayedTimeoutId = null;
+    }
+
+    this.bufferPool.append(chunk);
+    const sizeOfMessage = this.bufferPool.getInt32();
+
+    if (sizeOfMessage == null) {
+      return callback();
+    }
+
+    if (sizeOfMessage < 0) {
+      return callback(new MongoParseError(`Invalid message size: ${sizeOfMessage}, too small`));
+    }
+
+    if (sizeOfMessage > this.bufferPool.length) {
+      return callback();
+    }
+
+    const message = this.bufferPool.read(sizeOfMessage);
+    return callback(null, message);
+  }
+}
+
+/** @internal */
+export class CryptoConnection extends Connection {
+  /** @internal */
+  autoEncrypter?: AutoEncrypter;
+
+  constructor(stream: Stream, options: ConnectionOptions) {
+    super(stream, options);
+    this.autoEncrypter = options.autoEncrypter;
+  }
+
+  public override async command<T extends MongoDBResponseConstructor>(
+    ns: MongoDBNamespace,
+    command: Document,
+    options: CommandOptions | undefined,
+    responseType: T
+  ): Promise<InstanceType<T>>;
+
+  public override async command(
+    ns: MongoDBNamespace,
+    command: Document,
+    options?: CommandOptions
+  ): Promise<Document>;
+
+  override async command<T extends MongoDBResponseConstructor>(
+    ns: MongoDBNamespace,
+    cmd: Document,
+    options?: CommandOptions,
+    responseType?: T | undefined
+  ): Promise<Document> {
+    const { autoEncrypter } = this;
+    if (!autoEncrypter) {
+      // TODO(NODE-6065): throw a MongoRuntimeError in Node V7
+      // @ts-expect-error No cause provided because there is no underlying error.
+      throw new MongoMissingDependencyError('No AutoEncrypter available for encryption', {
+        dependencyName: 'n/a'
+      });
+    }
+
+    const serverWireVersion = maxWireVersion(this);
+    if (serverWireVersion === 0) {
+      // This means the initial handshake hasn't happened yet
+      return await super.command<T>(ns, cmd, options, responseType);
+    }
+
+    if (serverWireVersion < 8) {
+      throw new MongoCompatibilityError(
+        'Auto-encryption requires a minimum MongoDB version of 4.2'
+      );
+    }
+
+    // Save sort or indexKeys based on the command being run
+    // the encrypt API serializes our JS objects to BSON to pass to the native code layer
+    // and then deserializes the encrypted result, the protocol level components
+    // of the command (ex. sort) are then converted to JS objects potentially losing
+    // import key order information. These fields are never encrypted so we can save the values
+    // from before the encryption and replace them after encryption has been performed
+    const sort: Map<string, number> | null = cmd.find || cmd.findAndModify ? cmd.sort : null;
+    const indexKeys: Map<string, number>[] | null = cmd.createIndexes
+      ? cmd.indexes.map((index: { key: Map<string, number> }) => index.key)
+      : null;
+
+    const encrypted = await autoEncrypter.encrypt(ns.toString(), cmd, options);
+
+    // Replace the saved values
+    if (sort != null && (cmd.find || cmd.findAndModify)) {
+      encrypted.sort = sort;
+    }
+
+    if (indexKeys != null && cmd.createIndexes) {
+      for (const [offset, index] of indexKeys.entries()) {
+        // @ts-expect-error `encrypted` is a generic "command", but we've narrowed for only `createIndexes` commands here
+        encrypted.indexes[offset].key = index;
+      }
+    }
+
+    const encryptedResponse = await super.command(
+      ns,
+      encrypted,
+      options,
+      // Eventually we want to require `responseType` which means we would satisfy `T` as the return type.
+      // In the meantime, we want encryptedResponse to always be _at least_ a MongoDBResponse if not a more specific subclass
+      // So that we can ensure we have access to the on-demand APIs for decorate response
+      responseType ?? MongoDBResponse
+    );
+
+    const result = await autoEncrypter.decrypt(encryptedResponse.toBytes(), options);
+
+    const decryptedResponse = responseType?.make(result) ?? deserialize(result, options);
+
+    if (autoEncrypter[kDecorateResult]) {
+      if (responseType == null) {
+        decorateDecryptionResult(decryptedResponse, encryptedResponse.toObject(), true);
+      } else if (decryptedResponse instanceof CursorResponse) {
+        decryptedResponse.encryptedResponse = encryptedResponse;
+      }
+    }
+
+    return decryptedResponse;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cmap/connection_pool.ts b/backend/node_modules/mongodb/src/cmap/connection_pool.ts
new file mode 100644
index 0000000..ff4a727
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/connection_pool.ts
@@ -0,0 +1,851 @@
+import { clearTimeout, setTimeout } from 'timers';
+
+import type { ObjectId } from '../bson';
+import {
+  APM_EVENTS,
+  CONNECTION_CHECK_OUT_FAILED,
+  CONNECTION_CHECK_OUT_STARTED,
+  CONNECTION_CHECKED_IN,
+  CONNECTION_CHECKED_OUT,
+  CONNECTION_CLOSED,
+  CONNECTION_CREATED,
+  CONNECTION_POOL_CLEARED,
+  CONNECTION_POOL_CLOSED,
+  CONNECTION_POOL_CREATED,
+  CONNECTION_POOL_READY,
+  CONNECTION_READY
+} from '../constants';
+import {
+  type AnyError,
+  type MongoError,
+  MongoInvalidArgumentError,
+  MongoMissingCredentialsError,
+  MongoNetworkError,
+  MongoOperationTimeoutError,
+  MongoRuntimeError,
+  MongoServerError
+} from '../error';
+import { CancellationToken, TypedEventEmitter } from '../mongo_types';
+import type { Server } from '../sdam/server';
+import { type TimeoutContext, TimeoutError } from '../timeout';
+import { type Callback, List, makeCounter, now, promiseWithResolvers } from '../utils';
+import { connect } from './connect';
+import { Connection, type ConnectionEvents, type ConnectionOptions } from './connection';
+import {
+  ConnectionCheckedInEvent,
+  ConnectionCheckedOutEvent,
+  ConnectionCheckOutFailedEvent,
+  ConnectionCheckOutStartedEvent,
+  ConnectionClosedEvent,
+  ConnectionCreatedEvent,
+  ConnectionPoolClearedEvent,
+  ConnectionPoolClosedEvent,
+  ConnectionPoolCreatedEvent,
+  ConnectionPoolReadyEvent,
+  ConnectionReadyEvent
+} from './connection_pool_events';
+import {
+  PoolClearedError,
+  PoolClearedOnNetworkError,
+  PoolClosedError,
+  WaitQueueTimeoutError
+} from './errors';
+import { ConnectionPoolMetrics } from './metrics';
+
+/** @internal */
+const kServer = Symbol('server');
+/** @internal */
+const kConnections = Symbol('connections');
+/** @internal */
+const kPending = Symbol('pending');
+/** @internal */
+const kCheckedOut = Symbol('checkedOut');
+/** @internal */
+const kMinPoolSizeTimer = Symbol('minPoolSizeTimer');
+/** @internal */
+const kGeneration = Symbol('generation');
+/** @internal */
+const kServiceGenerations = Symbol('serviceGenerations');
+/** @internal */
+const kConnectionCounter = Symbol('connectionCounter');
+/** @internal */
+const kCancellationToken = Symbol('cancellationToken');
+/** @internal */
+const kWaitQueue = Symbol('waitQueue');
+/** @internal */
+const kCancelled = Symbol('cancelled');
+/** @internal */
+const kMetrics = Symbol('metrics');
+/** @internal */
+const kProcessingWaitQueue = Symbol('processingWaitQueue');
+/** @internal */
+const kPoolState = Symbol('poolState');
+
+/** @public */
+export interface ConnectionPoolOptions extends Omit<ConnectionOptions, 'id' | 'generation'> {
+  /** The maximum number of connections that may be associated with a pool at a given time. This includes in use and available connections. */
+  maxPoolSize: number;
+  /** The minimum number of connections that MUST exist at any moment in a single connection pool. */
+  minPoolSize: number;
+  /** The maximum number of connections that may be in the process of being established concurrently by the connection pool. */
+  maxConnecting: number;
+  /** The maximum amount of time a connection should remain idle in the connection pool before being marked idle. */
+  maxIdleTimeMS: number;
+  /** The maximum amount of time operation execution should wait for a connection to become available. The default is 0 which means there is no limit. */
+  waitQueueTimeoutMS: number;
+  /** If we are in load balancer mode. */
+  loadBalanced: boolean;
+  /** @internal */
+  minPoolSizeCheckFrequencyMS?: number;
+}
+
+/** @internal */
+export interface WaitQueueMember {
+  resolve: (conn: Connection) => void;
+  reject: (err: AnyError) => void;
+  [kCancelled]?: boolean;
+  checkoutTime: number;
+}
+
+/** @internal */
+export const PoolState = Object.freeze({
+  paused: 'paused',
+  ready: 'ready',
+  closed: 'closed'
+} as const);
+
+/**
+ * @public
+ * @deprecated This interface is deprecated and will be removed in a future release as it is not used
+ * in the driver
+ */
+export interface CloseOptions {
+  force?: boolean;
+}
+
+/** @public */
+export type ConnectionPoolEvents = {
+  connectionPoolCreated(event: ConnectionPoolCreatedEvent): void;
+  connectionPoolReady(event: ConnectionPoolReadyEvent): void;
+  connectionPoolClosed(event: ConnectionPoolClosedEvent): void;
+  connectionPoolCleared(event: ConnectionPoolClearedEvent): void;
+  connectionCreated(event: ConnectionCreatedEvent): void;
+  connectionReady(event: ConnectionReadyEvent): void;
+  connectionClosed(event: ConnectionClosedEvent): void;
+  connectionCheckOutStarted(event: ConnectionCheckOutStartedEvent): void;
+  connectionCheckOutFailed(event: ConnectionCheckOutFailedEvent): void;
+  connectionCheckedOut(event: ConnectionCheckedOutEvent): void;
+  connectionCheckedIn(event: ConnectionCheckedInEvent): void;
+} & Omit<ConnectionEvents, 'close' | 'message'>;
+
+/**
+ * A pool of connections which dynamically resizes, and emit events related to pool activity
+ * @internal
+ */
+export class ConnectionPool extends TypedEventEmitter<ConnectionPoolEvents> {
+  options: Readonly<ConnectionPoolOptions>;
+  [kPoolState]: (typeof PoolState)[keyof typeof PoolState];
+  [kServer]: Server;
+  [kConnections]: List<Connection>;
+  [kPending]: number;
+  [kCheckedOut]: Set<Connection>;
+  [kMinPoolSizeTimer]?: NodeJS.Timeout;
+  /**
+   * An integer representing the SDAM generation of the pool
+   */
+  [kGeneration]: number;
+  /**
+   * A map of generations to service ids
+   */
+  [kServiceGenerations]: Map<string, number>;
+  [kConnectionCounter]: Generator<number>;
+  [kCancellationToken]: CancellationToken;
+  [kWaitQueue]: List<WaitQueueMember>;
+  [kMetrics]: ConnectionPoolMetrics;
+  [kProcessingWaitQueue]: boolean;
+
+  /**
+   * Emitted when the connection pool is created.
+   * @event
+   */
+  static readonly CONNECTION_POOL_CREATED = CONNECTION_POOL_CREATED;
+  /**
+   * Emitted once when the connection pool is closed
+   * @event
+   */
+  static readonly CONNECTION_POOL_CLOSED = CONNECTION_POOL_CLOSED;
+  /**
+   * Emitted each time the connection pool is cleared and it's generation incremented
+   * @event
+   */
+  static readonly CONNECTION_POOL_CLEARED = CONNECTION_POOL_CLEARED;
+  /**
+   * Emitted each time the connection pool is marked ready
+   * @event
+   */
+  static readonly CONNECTION_POOL_READY = CONNECTION_POOL_READY;
+  /**
+   * Emitted when a connection is created.
+   * @event
+   */
+  static readonly CONNECTION_CREATED = CONNECTION_CREATED;
+  /**
+   * Emitted when a connection becomes established, and is ready to use
+   * @event
+   */
+  static readonly CONNECTION_READY = CONNECTION_READY;
+  /**
+   * Emitted when a connection is closed
+   * @event
+   */
+  static readonly CONNECTION_CLOSED = CONNECTION_CLOSED;
+  /**
+   * Emitted when an attempt to check out a connection begins
+   * @event
+   */
+  static readonly CONNECTION_CHECK_OUT_STARTED = CONNECTION_CHECK_OUT_STARTED;
+  /**
+   * Emitted when an attempt to check out a connection fails
+   * @event
+   */
+  static readonly CONNECTION_CHECK_OUT_FAILED = CONNECTION_CHECK_OUT_FAILED;
+  /**
+   * Emitted each time a connection is successfully checked out of the connection pool
+   * @event
+   */
+  static readonly CONNECTION_CHECKED_OUT = CONNECTION_CHECKED_OUT;
+  /**
+   * Emitted each time a connection is successfully checked into the connection pool
+   * @event
+   */
+  static readonly CONNECTION_CHECKED_IN = CONNECTION_CHECKED_IN;
+
+  constructor(server: Server, options: ConnectionPoolOptions) {
+    super();
+
+    this.options = Object.freeze({
+      connectionType: Connection,
+      ...options,
+      maxPoolSize: options.maxPoolSize ?? 100,
+      minPoolSize: options.minPoolSize ?? 0,
+      maxConnecting: options.maxConnecting ?? 2,
+      maxIdleTimeMS: options.maxIdleTimeMS ?? 0,
+      waitQueueTimeoutMS: options.waitQueueTimeoutMS ?? 0,
+      minPoolSizeCheckFrequencyMS: options.minPoolSizeCheckFrequencyMS ?? 100,
+      autoEncrypter: options.autoEncrypter
+    });
+
+    if (this.options.minPoolSize > this.options.maxPoolSize) {
+      throw new MongoInvalidArgumentError(
+        'Connection pool minimum size must not be greater than maximum pool size'
+      );
+    }
+
+    this[kPoolState] = PoolState.paused;
+    this[kServer] = server;
+    this[kConnections] = new List();
+    this[kPending] = 0;
+    this[kCheckedOut] = new Set();
+    this[kMinPoolSizeTimer] = undefined;
+    this[kGeneration] = 0;
+    this[kServiceGenerations] = new Map();
+    this[kConnectionCounter] = makeCounter(1);
+    this[kCancellationToken] = new CancellationToken();
+    this[kCancellationToken].setMaxListeners(Infinity);
+    this[kWaitQueue] = new List();
+    this[kMetrics] = new ConnectionPoolMetrics();
+    this[kProcessingWaitQueue] = false;
+
+    this.mongoLogger = this[kServer].topology.client?.mongoLogger;
+    this.component = 'connection';
+
+    process.nextTick(() => {
+      this.emitAndLog(ConnectionPool.CONNECTION_POOL_CREATED, new ConnectionPoolCreatedEvent(this));
+    });
+  }
+
+  /** The address of the endpoint the pool is connected to */
+  get address(): string {
+    return this.options.hostAddress.toString();
+  }
+
+  /**
+   * Check if the pool has been closed
+   *
+   * TODO(NODE-3263): We can remove this property once shell no longer needs it
+   */
+  get closed(): boolean {
+    return this[kPoolState] === PoolState.closed;
+  }
+
+  /** An integer representing the SDAM generation of the pool */
+  get generation(): number {
+    return this[kGeneration];
+  }
+
+  /** An integer expressing how many total connections (available + pending + in use) the pool currently has */
+  get totalConnectionCount(): number {
+    return (
+      this.availableConnectionCount + this.pendingConnectionCount + this.currentCheckedOutCount
+    );
+  }
+
+  /** An integer expressing how many connections are currently available in the pool. */
+  get availableConnectionCount(): number {
+    return this[kConnections].length;
+  }
+
+  get pendingConnectionCount(): number {
+    return this[kPending];
+  }
+
+  get currentCheckedOutCount(): number {
+    return this[kCheckedOut].size;
+  }
+
+  get waitQueueSize(): number {
+    return this[kWaitQueue].length;
+  }
+
+  get loadBalanced(): boolean {
+    return this.options.loadBalanced;
+  }
+
+  get serviceGenerations(): Map<string, number> {
+    return this[kServiceGenerations];
+  }
+
+  get serverError() {
+    return this[kServer].description.error;
+  }
+
+  /**
+   * This is exposed ONLY for use in mongosh, to enable
+   * killing all connections if a user quits the shell with
+   * operations in progress.
+   *
+   * This property may be removed as a part of NODE-3263.
+   */
+  get checkedOutConnections() {
+    return this[kCheckedOut];
+  }
+
+  /**
+   * Get the metrics information for the pool when a wait queue timeout occurs.
+   */
+  private waitQueueErrorMetrics(): string {
+    return this[kMetrics].info(this.options.maxPoolSize);
+  }
+
+  /**
+   * Set the pool state to "ready"
+   */
+  ready(): void {
+    if (this[kPoolState] !== PoolState.paused) {
+      return;
+    }
+    this[kPoolState] = PoolState.ready;
+    this.emitAndLog(ConnectionPool.CONNECTION_POOL_READY, new ConnectionPoolReadyEvent(this));
+    clearTimeout(this[kMinPoolSizeTimer]);
+    this.ensureMinPoolSize();
+  }
+
+  /**
+   * Check a connection out of this pool. The connection will continue to be tracked, but no reference to it
+   * will be held by the pool. This means that if a connection is checked out it MUST be checked back in or
+   * explicitly destroyed by the new owner.
+   */
+  async checkOut(options: { timeoutContext: TimeoutContext }): Promise<Connection> {
+    const checkoutTime = now();
+    this.emitAndLog(
+      ConnectionPool.CONNECTION_CHECK_OUT_STARTED,
+      new ConnectionCheckOutStartedEvent(this)
+    );
+
+    const { promise, resolve, reject } = promiseWithResolvers<Connection>();
+
+    const timeout = options.timeoutContext.connectionCheckoutTimeout;
+
+    const waitQueueMember: WaitQueueMember = {
+      resolve,
+      reject,
+      checkoutTime
+    };
+
+    this[kWaitQueue].push(waitQueueMember);
+    process.nextTick(() => this.processWaitQueue());
+
+    try {
+      timeout?.throwIfExpired();
+      return await (timeout ? Promise.race([promise, timeout]) : promise);
+    } catch (error) {
+      if (TimeoutError.is(error)) {
+        timeout?.clear();
+        waitQueueMember[kCancelled] = true;
+
+        this.emitAndLog(
+          ConnectionPool.CONNECTION_CHECK_OUT_FAILED,
+          new ConnectionCheckOutFailedEvent(this, 'timeout', waitQueueMember.checkoutTime)
+        );
+        const timeoutError = new WaitQueueTimeoutError(
+          this.loadBalanced
+            ? this.waitQueueErrorMetrics()
+            : 'Timed out while checking out a connection from connection pool',
+          this.address
+        );
+        if (options.timeoutContext.csotEnabled()) {
+          throw new MongoOperationTimeoutError('Timed out during connection checkout', {
+            cause: timeoutError
+          });
+        }
+        throw timeoutError;
+      }
+      throw error;
+    } finally {
+      timeout?.clear();
+    }
+  }
+
+  /**
+   * Check a connection into the pool.
+   *
+   * @param connection - The connection to check in
+   */
+  checkIn(connection: Connection): void {
+    if (!this[kCheckedOut].has(connection)) {
+      return;
+    }
+    const poolClosed = this.closed;
+    const stale = this.connectionIsStale(connection);
+    const willDestroy = !!(poolClosed || stale || connection.closed);
+
+    if (!willDestroy) {
+      connection.markAvailable();
+      this[kConnections].unshift(connection);
+    }
+
+    this[kCheckedOut].delete(connection);
+    this.emitAndLog(
+      ConnectionPool.CONNECTION_CHECKED_IN,
+      new ConnectionCheckedInEvent(this, connection)
+    );
+
+    if (willDestroy) {
+      const reason = connection.closed ? 'error' : poolClosed ? 'poolClosed' : 'stale';
+      this.destroyConnection(connection, reason);
+    }
+
+    process.nextTick(() => this.processWaitQueue());
+  }
+
+  /**
+   * Clear the pool
+   *
+   * Pool reset is handled by incrementing the pool's generation count. Any existing connection of a
+   * previous generation will eventually be pruned during subsequent checkouts.
+   */
+  clear(options: { serviceId?: ObjectId; interruptInUseConnections?: boolean } = {}): void {
+    if (this.closed) {
+      return;
+    }
+
+    // handle load balanced case
+    if (this.loadBalanced) {
+      const { serviceId } = options;
+      if (!serviceId) {
+        throw new MongoRuntimeError(
+          'ConnectionPool.clear() called in load balanced mode with no serviceId.'
+        );
+      }
+      const sid = serviceId.toHexString();
+      const generation = this.serviceGenerations.get(sid);
+      // Only need to worry if the generation exists, since it should
+      // always be there but typescript needs the check.
+      if (generation == null) {
+        throw new MongoRuntimeError('Service generations are required in load balancer mode.');
+      } else {
+        // Increment the generation for the service id.
+        this.serviceGenerations.set(sid, generation + 1);
+      }
+      this.emitAndLog(
+        ConnectionPool.CONNECTION_POOL_CLEARED,
+        new ConnectionPoolClearedEvent(this, { serviceId })
+      );
+      return;
+    }
+    // handle non load-balanced case
+    const interruptInUseConnections = options.interruptInUseConnections ?? false;
+    const oldGeneration = this[kGeneration];
+    this[kGeneration] += 1;
+    const alreadyPaused = this[kPoolState] === PoolState.paused;
+    this[kPoolState] = PoolState.paused;
+
+    this.clearMinPoolSizeTimer();
+    if (!alreadyPaused) {
+      this.emitAndLog(
+        ConnectionPool.CONNECTION_POOL_CLEARED,
+        new ConnectionPoolClearedEvent(this, {
+          interruptInUseConnections
+        })
+      );
+    }
+
+    if (interruptInUseConnections) {
+      process.nextTick(() => this.interruptInUseConnections(oldGeneration));
+    }
+
+    this.processWaitQueue();
+  }
+
+  /**
+   * Closes all stale in-use connections in the pool with a resumable PoolClearedOnNetworkError.
+   *
+   * Only connections where `connection.generation <= minGeneration` are killed.
+   */
+  private interruptInUseConnections(minGeneration: number) {
+    for (const connection of this[kCheckedOut]) {
+      if (connection.generation <= minGeneration) {
+        connection.onError(new PoolClearedOnNetworkError(this));
+        this.checkIn(connection);
+      }
+    }
+  }
+
+  /** Close the pool */
+  close(): void {
+    if (this.closed) {
+      return;
+    }
+
+    // immediately cancel any in-flight connections
+    this[kCancellationToken].emit('cancel');
+
+    // end the connection counter
+    if (typeof this[kConnectionCounter].return === 'function') {
+      this[kConnectionCounter].return(undefined);
+    }
+
+    this[kPoolState] = PoolState.closed;
+    this.clearMinPoolSizeTimer();
+    this.processWaitQueue();
+
+    for (const conn of this[kConnections]) {
+      this.emitAndLog(
+        ConnectionPool.CONNECTION_CLOSED,
+        new ConnectionClosedEvent(this, conn, 'poolClosed')
+      );
+      conn.destroy();
+    }
+    this[kConnections].clear();
+    this.emitAndLog(ConnectionPool.CONNECTION_POOL_CLOSED, new ConnectionPoolClosedEvent(this));
+  }
+
+  /**
+   * @internal
+   * Reauthenticate a connection
+   */
+  async reauthenticate(connection: Connection): Promise<void> {
+    const authContext = connection.authContext;
+    if (!authContext) {
+      throw new MongoRuntimeError('No auth context found on connection.');
+    }
+    const credentials = authContext.credentials;
+    if (!credentials) {
+      throw new MongoMissingCredentialsError(
+        'Connection is missing credentials when asked to reauthenticate'
+      );
+    }
+
+    const resolvedCredentials = credentials.resolveAuthMechanism(connection.hello);
+    const provider = this[kServer].topology.client.s.authProviders.getOrCreateProvider(
+      resolvedCredentials.mechanism,
+      resolvedCredentials.mechanismProperties
+    );
+
+    if (!provider) {
+      throw new MongoMissingCredentialsError(
+        `Reauthenticate failed due to no auth provider for ${credentials.mechanism}`
+      );
+    }
+
+    await provider.reauth(authContext);
+
+    return;
+  }
+
+  /** Clear the min pool size timer */
+  private clearMinPoolSizeTimer(): void {
+    const minPoolSizeTimer = this[kMinPoolSizeTimer];
+    if (minPoolSizeTimer) {
+      clearTimeout(minPoolSizeTimer);
+    }
+  }
+
+  private destroyConnection(
+    connection: Connection,
+    reason: 'error' | 'idle' | 'stale' | 'poolClosed'
+  ) {
+    this.emitAndLog(
+      ConnectionPool.CONNECTION_CLOSED,
+      new ConnectionClosedEvent(this, connection, reason)
+    );
+    // destroy the connection
+    connection.destroy();
+  }
+
+  private connectionIsStale(connection: Connection) {
+    const serviceId = connection.serviceId;
+    if (this.loadBalanced && serviceId) {
+      const sid = serviceId.toHexString();
+      const generation = this.serviceGenerations.get(sid);
+      return connection.generation !== generation;
+    }
+
+    return connection.generation !== this[kGeneration];
+  }
+
+  private connectionIsIdle(connection: Connection) {
+    return !!(this.options.maxIdleTimeMS && connection.idleTime > this.options.maxIdleTimeMS);
+  }
+
+  /**
+   * Destroys a connection if the connection is perished.
+   *
+   * @returns `true` if the connection was destroyed, `false` otherwise.
+   */
+  private destroyConnectionIfPerished(connection: Connection): boolean {
+    const isStale = this.connectionIsStale(connection);
+    const isIdle = this.connectionIsIdle(connection);
+    if (!isStale && !isIdle && !connection.closed) {
+      return false;
+    }
+    const reason = connection.closed ? 'error' : isStale ? 'stale' : 'idle';
+    this.destroyConnection(connection, reason);
+    return true;
+  }
+
+  private createConnection(callback: Callback<Connection>) {
+    const connectOptions: ConnectionOptions = {
+      ...this.options,
+      id: this[kConnectionCounter].next().value,
+      generation: this[kGeneration],
+      cancellationToken: this[kCancellationToken],
+      mongoLogger: this.mongoLogger,
+      authProviders: this[kServer].topology.client.s.authProviders
+    };
+
+    this[kPending]++;
+    // This is our version of a "virtual" no-I/O connection as the spec requires
+    const connectionCreatedTime = now();
+    this.emitAndLog(
+      ConnectionPool.CONNECTION_CREATED,
+      new ConnectionCreatedEvent(this, { id: connectOptions.id })
+    );
+
+    connect(connectOptions).then(
+      connection => {
+        // The pool might have closed since we started trying to create a connection
+        if (this[kPoolState] !== PoolState.ready) {
+          this[kPending]--;
+          connection.destroy();
+          callback(this.closed ? new PoolClosedError(this) : new PoolClearedError(this));
+          return;
+        }
+
+        // forward all events from the connection to the pool
+        for (const event of [...APM_EVENTS, Connection.CLUSTER_TIME_RECEIVED]) {
+          connection.on(event, (e: any) => this.emit(event, e));
+        }
+
+        if (this.loadBalanced) {
+          connection.on(Connection.PINNED, pinType => this[kMetrics].markPinned(pinType));
+          connection.on(Connection.UNPINNED, pinType => this[kMetrics].markUnpinned(pinType));
+
+          const serviceId = connection.serviceId;
+          if (serviceId) {
+            let generation;
+            const sid = serviceId.toHexString();
+            if ((generation = this.serviceGenerations.get(sid))) {
+              connection.generation = generation;
+            } else {
+              this.serviceGenerations.set(sid, 0);
+              connection.generation = 0;
+            }
+          }
+        }
+
+        connection.markAvailable();
+        this.emitAndLog(
+          ConnectionPool.CONNECTION_READY,
+          new ConnectionReadyEvent(this, connection, connectionCreatedTime)
+        );
+
+        this[kPending]--;
+        callback(undefined, connection);
+      },
+      error => {
+        this[kPending]--;
+        this[kServer].handleError(error);
+        this.emitAndLog(
+          ConnectionPool.CONNECTION_CLOSED,
+          new ConnectionClosedEvent(
+            this,
+            { id: connectOptions.id, serviceId: undefined },
+            'error',
+            // TODO(NODE-5192): Remove this cast
+            error as MongoError
+          )
+        );
+        if (error instanceof MongoNetworkError || error instanceof MongoServerError) {
+          error.connectionGeneration = connectOptions.generation;
+        }
+        callback(error ?? new MongoRuntimeError('Connection creation failed without error'));
+      }
+    );
+  }
+
+  private ensureMinPoolSize() {
+    const minPoolSize = this.options.minPoolSize;
+    if (this[kPoolState] !== PoolState.ready || minPoolSize === 0) {
+      return;
+    }
+
+    this[kConnections].prune(connection => this.destroyConnectionIfPerished(connection));
+
+    if (
+      this.totalConnectionCount < minPoolSize &&
+      this.pendingConnectionCount < this.options.maxConnecting
+    ) {
+      // NOTE: ensureMinPoolSize should not try to get all the pending
+      // connection permits because that potentially delays the availability of
+      // the connection to a checkout request
+      this.createConnection((err, connection) => {
+        if (!err && connection) {
+          this[kConnections].push(connection);
+          process.nextTick(() => this.processWaitQueue());
+        }
+        if (this[kPoolState] === PoolState.ready) {
+          clearTimeout(this[kMinPoolSizeTimer]);
+          this[kMinPoolSizeTimer] = setTimeout(
+            () => this.ensureMinPoolSize(),
+            this.options.minPoolSizeCheckFrequencyMS
+          );
+        }
+      });
+    } else {
+      clearTimeout(this[kMinPoolSizeTimer]);
+      this[kMinPoolSizeTimer] = setTimeout(
+        () => this.ensureMinPoolSize(),
+        this.options.minPoolSizeCheckFrequencyMS
+      );
+    }
+  }
+
+  private processWaitQueue() {
+    if (this[kProcessingWaitQueue]) {
+      return;
+    }
+    this[kProcessingWaitQueue] = true;
+
+    while (this.waitQueueSize) {
+      const waitQueueMember = this[kWaitQueue].first();
+      if (!waitQueueMember) {
+        this[kWaitQueue].shift();
+        continue;
+      }
+
+      if (waitQueueMember[kCancelled]) {
+        this[kWaitQueue].shift();
+        continue;
+      }
+
+      if (this[kPoolState] !== PoolState.ready) {
+        const reason = this.closed ? 'poolClosed' : 'connectionError';
+        const error = this.closed ? new PoolClosedError(this) : new PoolClearedError(this);
+        this.emitAndLog(
+          ConnectionPool.CONNECTION_CHECK_OUT_FAILED,
+          new ConnectionCheckOutFailedEvent(this, reason, waitQueueMember.checkoutTime, error)
+        );
+        this[kWaitQueue].shift();
+        waitQueueMember.reject(error);
+        continue;
+      }
+
+      if (!this.availableConnectionCount) {
+        break;
+      }
+
+      const connection = this[kConnections].shift();
+      if (!connection) {
+        break;
+      }
+
+      if (!this.destroyConnectionIfPerished(connection)) {
+        this[kCheckedOut].add(connection);
+        this.emitAndLog(
+          ConnectionPool.CONNECTION_CHECKED_OUT,
+          new ConnectionCheckedOutEvent(this, connection, waitQueueMember.checkoutTime)
+        );
+
+        this[kWaitQueue].shift();
+        waitQueueMember.resolve(connection);
+      }
+    }
+
+    const { maxPoolSize, maxConnecting } = this.options;
+    while (
+      this.waitQueueSize > 0 &&
+      this.pendingConnectionCount < maxConnecting &&
+      (maxPoolSize === 0 || this.totalConnectionCount < maxPoolSize)
+    ) {
+      const waitQueueMember = this[kWaitQueue].shift();
+      if (!waitQueueMember || waitQueueMember[kCancelled]) {
+        continue;
+      }
+      this.createConnection((err, connection) => {
+        if (waitQueueMember[kCancelled]) {
+          if (!err && connection) {
+            this[kConnections].push(connection);
+          }
+        } else {
+          if (err) {
+            this.emitAndLog(
+              ConnectionPool.CONNECTION_CHECK_OUT_FAILED,
+              // TODO(NODE-5192): Remove this cast
+              new ConnectionCheckOutFailedEvent(
+                this,
+                'connectionError',
+                waitQueueMember.checkoutTime,
+                err as MongoError
+              )
+            );
+            waitQueueMember.reject(err);
+          } else if (connection) {
+            this[kCheckedOut].add(connection);
+            this.emitAndLog(
+              ConnectionPool.CONNECTION_CHECKED_OUT,
+              new ConnectionCheckedOutEvent(this, connection, waitQueueMember.checkoutTime)
+            );
+            waitQueueMember.resolve(connection);
+          }
+        }
+        process.nextTick(() => this.processWaitQueue());
+      });
+    }
+    this[kProcessingWaitQueue] = false;
+  }
+}
+
+/**
+ * A callback provided to `withConnection`
+ * @internal
+ *
+ * @param error - An error instance representing the error during the execution.
+ * @param connection - The managed connection which was checked out of the pool.
+ * @param callback - A function to call back after connection management is complete
+ */
+export type WithConnectionCallback = (
+  error: MongoError | undefined,
+  connection: Connection | undefined,
+  callback: Callback<Connection>
+) => void;
diff --git a/backend/node_modules/mongodb/src/cmap/connection_pool_events.ts b/backend/node_modules/mongodb/src/cmap/connection_pool_events.ts
new file mode 100644
index 0000000..5b8c409
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/connection_pool_events.ts
@@ -0,0 +1,300 @@
+import type { ObjectId } from '../bson';
+import {
+  CONNECTION_CHECK_OUT_FAILED,
+  CONNECTION_CHECK_OUT_STARTED,
+  CONNECTION_CHECKED_IN,
+  CONNECTION_CHECKED_OUT,
+  CONNECTION_CLOSED,
+  CONNECTION_CREATED,
+  CONNECTION_POOL_CLEARED,
+  CONNECTION_POOL_CLOSED,
+  CONNECTION_POOL_CREATED,
+  CONNECTION_POOL_READY,
+  CONNECTION_READY
+} from '../constants';
+import type { MongoError } from '../error';
+import { now } from '../utils';
+import type { Connection } from './connection';
+import type { ConnectionPool, ConnectionPoolOptions } from './connection_pool';
+
+/**
+ * The base export class for all monitoring events published from the connection pool
+ * @public
+ * @category Event
+ */
+export abstract class ConnectionPoolMonitoringEvent {
+  /** A timestamp when the event was created  */
+  time: Date;
+  /** The address (host/port pair) of the pool */
+  address: string;
+  /** @internal */
+  abstract name:
+    | typeof CONNECTION_CHECK_OUT_FAILED
+    | typeof CONNECTION_CHECK_OUT_STARTED
+    | typeof CONNECTION_CHECKED_IN
+    | typeof CONNECTION_CHECKED_OUT
+    | typeof CONNECTION_CLOSED
+    | typeof CONNECTION_CREATED
+    | typeof CONNECTION_POOL_CLEARED
+    | typeof CONNECTION_POOL_CLOSED
+    | typeof CONNECTION_POOL_CREATED
+    | typeof CONNECTION_POOL_READY
+    | typeof CONNECTION_READY;
+
+  /** @internal */
+  constructor(pool: ConnectionPool) {
+    this.time = new Date();
+    this.address = pool.address;
+  }
+}
+
+/**
+ * An event published when a connection pool is created
+ * @public
+ * @category Event
+ */
+export class ConnectionPoolCreatedEvent extends ConnectionPoolMonitoringEvent {
+  /** The options used to create this connection pool */
+  options: Pick<
+    ConnectionPoolOptions,
+    'maxPoolSize' | 'minPoolSize' | 'maxConnecting' | 'maxIdleTimeMS' | 'waitQueueTimeoutMS'
+  >;
+  /** @internal */
+  name = CONNECTION_POOL_CREATED;
+
+  /** @internal */
+  constructor(pool: ConnectionPool) {
+    super(pool);
+    const { maxConnecting, maxPoolSize, minPoolSize, maxIdleTimeMS, waitQueueTimeoutMS } =
+      pool.options;
+    this.options = { maxConnecting, maxPoolSize, minPoolSize, maxIdleTimeMS, waitQueueTimeoutMS };
+  }
+}
+
+/**
+ * An event published when a connection pool is ready
+ * @public
+ * @category Event
+ */
+export class ConnectionPoolReadyEvent extends ConnectionPoolMonitoringEvent {
+  /** @internal */
+  name = CONNECTION_POOL_READY;
+
+  /** @internal */
+  constructor(pool: ConnectionPool) {
+    super(pool);
+  }
+}
+
+/**
+ * An event published when a connection pool is closed
+ * @public
+ * @category Event
+ */
+export class ConnectionPoolClosedEvent extends ConnectionPoolMonitoringEvent {
+  /** @internal */
+  name = CONNECTION_POOL_CLOSED;
+
+  /** @internal */
+  constructor(pool: ConnectionPool) {
+    super(pool);
+  }
+}
+
+/**
+ * An event published when a connection pool creates a new connection
+ * @public
+ * @category Event
+ */
+export class ConnectionCreatedEvent extends ConnectionPoolMonitoringEvent {
+  /** A monotonically increasing, per-pool id for the newly created connection */
+  connectionId: number | '<monitor>';
+  /** @internal */
+  name = CONNECTION_CREATED;
+
+  /** @internal */
+  constructor(pool: ConnectionPool, connection: { id: number | '<monitor>' }) {
+    super(pool);
+    this.connectionId = connection.id;
+  }
+}
+
+/**
+ * An event published when a connection is ready for use
+ * @public
+ * @category Event
+ */
+export class ConnectionReadyEvent extends ConnectionPoolMonitoringEvent {
+  /** The id of the connection */
+  connectionId: number | '<monitor>';
+  /**
+   * The time it took to establish the connection.
+   * In accordance with the definition of establishment of a connection
+   * specified by `ConnectionPoolOptions.maxConnecting`,
+   * it is the time elapsed between emitting a `ConnectionCreatedEvent`
+   * and emitting this event as part of the same checking out.
+   *
+   * Naturally, when establishing a connection is part of checking out,
+   * this duration is not greater than
+   * `ConnectionCheckedOutEvent.duration`.
+   */
+  durationMS: number;
+  /** @internal */
+  name = CONNECTION_READY;
+
+  /** @internal */
+  constructor(pool: ConnectionPool, connection: Connection, connectionCreatedEventTime: number) {
+    super(pool);
+    this.durationMS = now() - connectionCreatedEventTime;
+    this.connectionId = connection.id;
+  }
+}
+
+/**
+ * An event published when a connection is closed
+ * @public
+ * @category Event
+ */
+export class ConnectionClosedEvent extends ConnectionPoolMonitoringEvent {
+  /** The id of the connection */
+  connectionId: number | '<monitor>';
+  /** The reason the connection was closed */
+  reason: string;
+  serviceId?: ObjectId;
+  /** @internal */
+  name = CONNECTION_CLOSED;
+  /** @internal */
+  error: MongoError | null;
+
+  /** @internal */
+  constructor(
+    pool: ConnectionPool,
+    connection: Pick<Connection, 'id' | 'serviceId'>,
+    reason: 'idle' | 'stale' | 'poolClosed' | 'error',
+    error?: MongoError
+  ) {
+    super(pool);
+    this.connectionId = connection.id;
+    this.reason = reason;
+    this.serviceId = connection.serviceId;
+    this.error = error ?? null;
+  }
+}
+
+/**
+ * An event published when a request to check a connection out begins
+ * @public
+ * @category Event
+ */
+export class ConnectionCheckOutStartedEvent extends ConnectionPoolMonitoringEvent {
+  /** @internal */
+  name = CONNECTION_CHECK_OUT_STARTED;
+
+  /** @internal */
+  constructor(pool: ConnectionPool) {
+    super(pool);
+  }
+}
+
+/**
+ * An event published when a request to check a connection out fails
+ * @public
+ * @category Event
+ */
+export class ConnectionCheckOutFailedEvent extends ConnectionPoolMonitoringEvent {
+  /** The reason the attempt to check out failed */
+  reason: string;
+  /** @internal */
+  error?: MongoError;
+  /** @internal */
+  name = CONNECTION_CHECK_OUT_FAILED;
+  /**
+   * The time it took to check out the connection.
+   * More specifically, the time elapsed between
+   * emitting a `ConnectionCheckOutStartedEvent`
+   * and emitting this event as part of the same check out.
+   */
+  durationMS: number;
+
+  /** @internal */
+  constructor(
+    pool: ConnectionPool,
+    reason: 'poolClosed' | 'timeout' | 'connectionError',
+    checkoutTime: number,
+    error?: MongoError
+  ) {
+    super(pool);
+    this.durationMS = now() - checkoutTime;
+    this.reason = reason;
+    this.error = error;
+  }
+}
+
+/**
+ * An event published when a connection is checked out of the connection pool
+ * @public
+ * @category Event
+ */
+export class ConnectionCheckedOutEvent extends ConnectionPoolMonitoringEvent {
+  /** The id of the connection */
+  connectionId: number | '<monitor>';
+  /** @internal */
+  name = CONNECTION_CHECKED_OUT;
+  /**
+   * The time it took to check out the connection.
+   * More specifically, the time elapsed between
+   * emitting a `ConnectionCheckOutStartedEvent`
+   * and emitting this event as part of the same checking out.
+   *
+   */
+  durationMS: number;
+
+  /** @internal */
+  constructor(pool: ConnectionPool, connection: Connection, checkoutTime: number) {
+    super(pool);
+    this.durationMS = now() - checkoutTime;
+    this.connectionId = connection.id;
+  }
+}
+
+/**
+ * An event published when a connection is checked into the connection pool
+ * @public
+ * @category Event
+ */
+export class ConnectionCheckedInEvent extends ConnectionPoolMonitoringEvent {
+  /** The id of the connection */
+  connectionId: number | '<monitor>';
+  /** @internal */
+  name = CONNECTION_CHECKED_IN;
+
+  /** @internal */
+  constructor(pool: ConnectionPool, connection: Connection) {
+    super(pool);
+    this.connectionId = connection.id;
+  }
+}
+
+/**
+ * An event published when a connection pool is cleared
+ * @public
+ * @category Event
+ */
+export class ConnectionPoolClearedEvent extends ConnectionPoolMonitoringEvent {
+  /** @internal */
+  serviceId?: ObjectId;
+
+  interruptInUseConnections?: boolean;
+  /** @internal */
+  name = CONNECTION_POOL_CLEARED;
+
+  /** @internal */
+  constructor(
+    pool: ConnectionPool,
+    options: { serviceId?: ObjectId; interruptInUseConnections?: boolean } = {}
+  ) {
+    super(pool);
+    this.serviceId = options.serviceId;
+    this.interruptInUseConnections = options.interruptInUseConnections;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cmap/errors.ts b/backend/node_modules/mongodb/src/cmap/errors.ts
new file mode 100644
index 0000000..9d51aa0
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/errors.ts
@@ -0,0 +1,119 @@
+import { MongoDriverError, MongoErrorLabel, MongoNetworkError } from '../error';
+import type { ConnectionPool } from './connection_pool';
+
+/**
+ * An error indicating a connection pool is closed
+ * @category Error
+ */
+export class PoolClosedError extends MongoDriverError {
+  /** The address of the connection pool */
+  address: string;
+
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(pool: ConnectionPool) {
+    super('Attempted to check out a connection from closed connection pool');
+    this.address = pool.address;
+  }
+
+  override get name(): string {
+    return 'MongoPoolClosedError';
+  }
+}
+
+/**
+ * An error indicating a connection pool is currently paused
+ * @category Error
+ */
+export class PoolClearedError extends MongoNetworkError {
+  /** The address of the connection pool */
+  address: string;
+
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(pool: ConnectionPool, message?: string) {
+    const errorMessage = message
+      ? message
+      : `Connection pool for ${pool.address} was cleared because another operation failed with: "${pool.serverError?.message}"`;
+    super(errorMessage, pool.serverError ? { cause: pool.serverError } : undefined);
+    this.address = pool.address;
+
+    this.addErrorLabel(MongoErrorLabel.PoolRequstedRetry);
+  }
+
+  override get name(): string {
+    return 'MongoPoolClearedError';
+  }
+}
+
+/**
+ * An error indicating that a connection pool has been cleared after the monitor for that server timed out.
+ * @category Error
+ */
+export class PoolClearedOnNetworkError extends PoolClearedError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(pool: ConnectionPool) {
+    super(pool, `Connection to ${pool.address} interrupted due to server monitor timeout`);
+  }
+
+  override get name(): string {
+    return 'PoolClearedOnNetworkError';
+  }
+}
+
+/**
+ * An error thrown when a request to check out a connection times out
+ * @category Error
+ */
+export class WaitQueueTimeoutError extends MongoDriverError {
+  /** The address of the connection pool */
+  address: string;
+
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string, address: string) {
+    super(message);
+    this.address = address;
+  }
+
+  override get name(): string {
+    return 'MongoWaitQueueTimeoutError';
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cmap/handshake/client_metadata.ts b/backend/node_modules/mongodb/src/cmap/handshake/client_metadata.ts
new file mode 100644
index 0000000..1e825ed
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/handshake/client_metadata.ts
@@ -0,0 +1,320 @@
+import * as os from 'os';
+import * as process from 'process';
+
+import { BSON, type Document, Int32 } from '../../bson';
+import { MongoInvalidArgumentError } from '../../error';
+import type { MongoOptions } from '../../mongo_client';
+import { fileIsAccessible } from '../../utils';
+
+// eslint-disable-next-line @typescript-eslint/no-require-imports
+const NODE_DRIVER_VERSION = require('../../../package.json').version;
+
+/**
+ * @public
+ * @see https://github.com/mongodb/specifications/blob/master/source/mongodb-handshake/handshake.md#hello-command
+ */
+export interface ClientMetadata {
+  driver: {
+    name: string;
+    version: string;
+  };
+  os: {
+    type: string;
+    name?: NodeJS.Platform;
+    architecture?: string;
+    version?: string;
+  };
+  platform: string;
+  application?: {
+    name: string;
+  };
+  /** FaaS environment information */
+  env?: {
+    name: 'aws.lambda' | 'gcp.func' | 'azure.func' | 'vercel';
+    timeout_sec?: Int32;
+    memory_mb?: Int32;
+    region?: string;
+    url?: string;
+  };
+}
+
+/** @public */
+export interface ClientMetadataOptions {
+  driverInfo?: {
+    name?: string;
+    version?: string;
+    platform?: string;
+  };
+  appName?: string;
+}
+
+/** @internal */
+export class LimitedSizeDocument {
+  private document = new Map();
+  /** BSON overhead: Int32 + Null byte */
+  private documentSize = 5;
+  constructor(private maxSize: number) {}
+
+  /** Only adds key/value if the bsonByteLength is less than MAX_SIZE */
+  public ifItFitsItSits(key: string, value: Record<string, any> | string): boolean {
+    // The BSON byteLength of the new element is the same as serializing it to its own document
+    // subtracting the document size int32 and the null terminator.
+    const newElementSize = BSON.serialize(new Map().set(key, value)).byteLength - 5;
+
+    if (newElementSize + this.documentSize > this.maxSize) {
+      return false;
+    }
+
+    this.documentSize += newElementSize;
+
+    this.document.set(key, value);
+
+    return true;
+  }
+
+  toObject(): Document {
+    return BSON.deserialize(BSON.serialize(this.document), {
+      promoteLongs: false,
+      promoteBuffers: false,
+      promoteValues: false,
+      useBigInt64: false
+    });
+  }
+}
+
+type MakeClientMetadataOptions = Pick<MongoOptions, 'appName' | 'driverInfo'>;
+/**
+ * From the specs:
+ * Implementors SHOULD cumulatively update fields in the following order until the document is under the size limit:
+ * 1. Omit fields from `env` except `env.name`.
+ * 2. Omit fields from `os` except `os.type`.
+ * 3. Omit the `env` document entirely.
+ * 4. Truncate `platform`. -- special we do not truncate this field
+ */
+export function makeClientMetadata(options: MakeClientMetadataOptions): ClientMetadata {
+  const metadataDocument = new LimitedSizeDocument(512);
+
+  const { appName = '' } = options;
+  // Add app name first, it must be sent
+  if (appName.length > 0) {
+    const name =
+      Buffer.byteLength(appName, 'utf8') <= 128
+        ? options.appName
+        : Buffer.from(appName, 'utf8').subarray(0, 128).toString('utf8');
+    metadataDocument.ifItFitsItSits('application', { name });
+  }
+
+  const { name = '', version = '', platform = '' } = options.driverInfo;
+
+  const driverInfo = {
+    name: name.length > 0 ? `nodejs|${name}` : 'nodejs',
+    version: version.length > 0 ? `${NODE_DRIVER_VERSION}|${version}` : NODE_DRIVER_VERSION
+  };
+
+  if (!metadataDocument.ifItFitsItSits('driver', driverInfo)) {
+    throw new MongoInvalidArgumentError(
+      'Unable to include driverInfo name and version, metadata cannot exceed 512 bytes'
+    );
+  }
+
+  let runtimeInfo = getRuntimeInfo();
+  if (platform.length > 0) {
+    runtimeInfo = `${runtimeInfo}|${platform}`;
+  }
+
+  if (!metadataDocument.ifItFitsItSits('platform', runtimeInfo)) {
+    throw new MongoInvalidArgumentError(
+      'Unable to include driverInfo platform, metadata cannot exceed 512 bytes'
+    );
+  }
+
+  // Note: order matters, os.type is last so it will be removed last if we're at maxSize
+  const osInfo = new Map()
+    .set('name', process.platform)
+    .set('architecture', process.arch)
+    .set('version', os.release())
+    .set('type', os.type());
+
+  if (!metadataDocument.ifItFitsItSits('os', osInfo)) {
+    for (const key of osInfo.keys()) {
+      osInfo.delete(key);
+      if (osInfo.size === 0) break;
+      if (metadataDocument.ifItFitsItSits('os', osInfo)) break;
+    }
+  }
+
+  const faasEnv = getFAASEnv();
+  if (faasEnv != null) {
+    if (!metadataDocument.ifItFitsItSits('env', faasEnv)) {
+      for (const key of faasEnv.keys()) {
+        faasEnv.delete(key);
+        if (faasEnv.size === 0) break;
+        if (metadataDocument.ifItFitsItSits('env', faasEnv)) break;
+      }
+    }
+  }
+  return metadataDocument.toObject() as ClientMetadata;
+}
+
+let dockerPromise: Promise<boolean>;
+/** @internal */
+async function getContainerMetadata() {
+  const containerMetadata: Record<string, any> = {};
+  dockerPromise ??= fileIsAccessible('/.dockerenv');
+  const isDocker = await dockerPromise;
+
+  const { KUBERNETES_SERVICE_HOST = '' } = process.env;
+  const isKubernetes = KUBERNETES_SERVICE_HOST.length > 0 ? true : false;
+
+  if (isDocker) containerMetadata.runtime = 'docker';
+  if (isKubernetes) containerMetadata.orchestrator = 'kubernetes';
+
+  return containerMetadata;
+}
+
+/**
+ * @internal
+ * Re-add each metadata value.
+ * Attempt to add new env container metadata, but keep old data if it does not fit.
+ */
+export async function addContainerMetadata(originalMetadata: ClientMetadata) {
+  const containerMetadata = await getContainerMetadata();
+  if (Object.keys(containerMetadata).length === 0) return originalMetadata;
+
+  const extendedMetadata = new LimitedSizeDocument(512);
+
+  const extendedEnvMetadata = { ...originalMetadata?.env, container: containerMetadata };
+
+  for (const [key, val] of Object.entries(originalMetadata)) {
+    if (key !== 'env') {
+      extendedMetadata.ifItFitsItSits(key, val);
+    } else {
+      if (!extendedMetadata.ifItFitsItSits('env', extendedEnvMetadata)) {
+        // add in old data if newer / extended metadata does not fit
+        extendedMetadata.ifItFitsItSits('env', val);
+      }
+    }
+  }
+
+  if (!('env' in originalMetadata)) {
+    extendedMetadata.ifItFitsItSits('env', extendedEnvMetadata);
+  }
+
+  return extendedMetadata.toObject();
+}
+
+/**
+ * Collects FaaS metadata.
+ * - `name` MUST be the last key in the Map returned.
+ */
+export function getFAASEnv(): Map<string, string | Int32> | null {
+  const {
+    AWS_EXECUTION_ENV = '',
+    AWS_LAMBDA_RUNTIME_API = '',
+    FUNCTIONS_WORKER_RUNTIME = '',
+    K_SERVICE = '',
+    FUNCTION_NAME = '',
+    VERCEL = '',
+    AWS_LAMBDA_FUNCTION_MEMORY_SIZE = '',
+    AWS_REGION = '',
+    FUNCTION_MEMORY_MB = '',
+    FUNCTION_REGION = '',
+    FUNCTION_TIMEOUT_SEC = '',
+    VERCEL_REGION = ''
+  } = process.env;
+
+  const isAWSFaaS =
+    AWS_EXECUTION_ENV.startsWith('AWS_Lambda_') || AWS_LAMBDA_RUNTIME_API.length > 0;
+  const isAzureFaaS = FUNCTIONS_WORKER_RUNTIME.length > 0;
+  const isGCPFaaS = K_SERVICE.length > 0 || FUNCTION_NAME.length > 0;
+  const isVercelFaaS = VERCEL.length > 0;
+
+  // Note: order matters, name must always be the last key
+  const faasEnv = new Map();
+
+  // When isVercelFaaS is true so is isAWSFaaS; Vercel inherits the AWS env
+  if (isVercelFaaS && !(isAzureFaaS || isGCPFaaS)) {
+    if (VERCEL_REGION.length > 0) {
+      faasEnv.set('region', VERCEL_REGION);
+    }
+
+    faasEnv.set('name', 'vercel');
+    return faasEnv;
+  }
+
+  if (isAWSFaaS && !(isAzureFaaS || isGCPFaaS || isVercelFaaS)) {
+    if (AWS_REGION.length > 0) {
+      faasEnv.set('region', AWS_REGION);
+    }
+
+    if (
+      AWS_LAMBDA_FUNCTION_MEMORY_SIZE.length > 0 &&
+      Number.isInteger(+AWS_LAMBDA_FUNCTION_MEMORY_SIZE)
+    ) {
+      faasEnv.set('memory_mb', new Int32(AWS_LAMBDA_FUNCTION_MEMORY_SIZE));
+    }
+
+    faasEnv.set('name', 'aws.lambda');
+    return faasEnv;
+  }
+
+  if (isAzureFaaS && !(isGCPFaaS || isAWSFaaS || isVercelFaaS)) {
+    faasEnv.set('name', 'azure.func');
+    return faasEnv;
+  }
+
+  if (isGCPFaaS && !(isAzureFaaS || isAWSFaaS || isVercelFaaS)) {
+    if (FUNCTION_REGION.length > 0) {
+      faasEnv.set('region', FUNCTION_REGION);
+    }
+
+    if (FUNCTION_MEMORY_MB.length > 0 && Number.isInteger(+FUNCTION_MEMORY_MB)) {
+      faasEnv.set('memory_mb', new Int32(FUNCTION_MEMORY_MB));
+    }
+
+    if (FUNCTION_TIMEOUT_SEC.length > 0 && Number.isInteger(+FUNCTION_TIMEOUT_SEC)) {
+      faasEnv.set('timeout_sec', new Int32(FUNCTION_TIMEOUT_SEC));
+    }
+
+    faasEnv.set('name', 'gcp.func');
+    return faasEnv;
+  }
+
+  return null;
+}
+
+/**
+ * @internal
+ * This type represents the global Deno object and the minimal type contract we expect it to satisfy.
+ */
+declare const Deno: { version?: { deno?: string } } | undefined;
+
+/**
+ * @internal
+ * This type represents the global Bun object and the minimal type contract we expect it to satisfy.
+ */
+declare const Bun: { (): void; version?: string } | undefined;
+
+/**
+ * @internal
+ * Get current JavaScript runtime platform
+ *
+ * NOTE: The version information fetching is intentionally written defensively
+ * to avoid having a released driver version that becomes incompatible
+ * with a future change to these global objects.
+ */
+function getRuntimeInfo(): string {
+  if ('Deno' in globalThis) {
+    const version = typeof Deno?.version?.deno === 'string' ? Deno?.version?.deno : '0.0.0-unknown';
+
+    return `Deno v${version}, ${os.endianness()}`;
+  }
+
+  if ('Bun' in globalThis) {
+    const version = typeof Bun?.version === 'string' ? Bun?.version : '0.0.0-unknown';
+
+    return `Bun v${version}, ${os.endianness()}`;
+  }
+
+  return `Node.js ${process.version}, ${os.endianness()}`;
+}
diff --git a/backend/node_modules/mongodb/src/cmap/metrics.ts b/backend/node_modules/mongodb/src/cmap/metrics.ts
new file mode 100644
index 0000000..b825b53
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/metrics.ts
@@ -0,0 +1,58 @@
+/** @internal */
+export class ConnectionPoolMetrics {
+  static readonly TXN = 'txn' as const;
+  static readonly CURSOR = 'cursor' as const;
+  static readonly OTHER = 'other' as const;
+
+  txnConnections = 0;
+  cursorConnections = 0;
+  otherConnections = 0;
+
+  /**
+   * Mark a connection as pinned for a specific operation.
+   */
+  markPinned(pinType: string): void {
+    if (pinType === ConnectionPoolMetrics.TXN) {
+      this.txnConnections += 1;
+    } else if (pinType === ConnectionPoolMetrics.CURSOR) {
+      this.cursorConnections += 1;
+    } else {
+      this.otherConnections += 1;
+    }
+  }
+
+  /**
+   * Unmark a connection as pinned for an operation.
+   */
+  markUnpinned(pinType: string): void {
+    if (pinType === ConnectionPoolMetrics.TXN) {
+      this.txnConnections -= 1;
+    } else if (pinType === ConnectionPoolMetrics.CURSOR) {
+      this.cursorConnections -= 1;
+    } else {
+      this.otherConnections -= 1;
+    }
+  }
+
+  /**
+   * Return information about the cmap metrics as a string.
+   */
+  info(maxPoolSize: number): string {
+    return (
+      'Timed out while checking out a connection from connection pool: ' +
+      `maxPoolSize: ${maxPoolSize}, ` +
+      `connections in use by cursors: ${this.cursorConnections}, ` +
+      `connections in use by transactions: ${this.txnConnections}, ` +
+      `connections in use by other operations: ${this.otherConnections}`
+    );
+  }
+
+  /**
+   * Reset the metrics to the initial values.
+   */
+  reset(): void {
+    this.txnConnections = 0;
+    this.cursorConnections = 0;
+    this.otherConnections = 0;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cmap/stream_description.ts b/backend/node_modules/mongodb/src/cmap/stream_description.ts
new file mode 100644
index 0000000..88411c9
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/stream_description.ts
@@ -0,0 +1,96 @@
+import { type Document, type Double, Long } from '../bson';
+import { ServerType } from '../sdam/common';
+import { parseServerType } from '../sdam/server_description';
+import type { CompressorName } from './wire_protocol/compression';
+
+const RESPONSE_FIELDS = [
+  'minWireVersion',
+  'maxWireVersion',
+  'maxBsonObjectSize',
+  'maxMessageSizeBytes',
+  'maxWriteBatchSize',
+  'logicalSessionTimeoutMinutes'
+] as const;
+
+/** @public */
+export interface StreamDescriptionOptions {
+  compressors?: CompressorName[];
+  logicalSessionTimeoutMinutes?: number;
+  loadBalanced: boolean;
+}
+
+/** @public */
+export class StreamDescription {
+  address: string;
+  type: ServerType;
+  minWireVersion?: number;
+  maxWireVersion?: number;
+  maxBsonObjectSize: number;
+  maxMessageSizeBytes: number;
+  maxWriteBatchSize: number;
+  compressors: CompressorName[];
+  compressor?: CompressorName;
+  logicalSessionTimeoutMinutes?: number;
+  loadBalanced: boolean;
+
+  __nodejs_mock_server__?: boolean;
+
+  zlibCompressionLevel?: number;
+  serverConnectionId: bigint | null;
+
+  public hello: Document | null = null;
+
+  constructor(address: string, options?: StreamDescriptionOptions) {
+    this.address = address;
+    this.type = ServerType.Unknown;
+    this.minWireVersion = undefined;
+    this.maxWireVersion = undefined;
+    this.maxBsonObjectSize = 16777216;
+    this.maxMessageSizeBytes = 48000000;
+    this.maxWriteBatchSize = 100000;
+    this.logicalSessionTimeoutMinutes = options?.logicalSessionTimeoutMinutes;
+    this.loadBalanced = !!options?.loadBalanced;
+    this.compressors =
+      options && options.compressors && Array.isArray(options.compressors)
+        ? options.compressors
+        : [];
+    this.serverConnectionId = null;
+  }
+
+  receiveResponse(response: Document | null): void {
+    if (response == null) {
+      return;
+    }
+    this.hello = response;
+    this.type = parseServerType(response);
+    if ('connectionId' in response) {
+      this.serverConnectionId = this.parseServerConnectionID(response.connectionId);
+    } else {
+      this.serverConnectionId = null;
+    }
+    for (const field of RESPONSE_FIELDS) {
+      if (response[field] != null) {
+        this[field] = response[field];
+      }
+
+      // testing case
+      if ('__nodejs_mock_server__' in response) {
+        this.__nodejs_mock_server__ = response['__nodejs_mock_server__'];
+      }
+    }
+
+    if (response.compression) {
+      this.compressor = this.compressors.filter(c => response.compression?.includes(c))[0];
+    }
+  }
+
+  /* @internal */
+  parseServerConnectionID(serverConnectionId: number | Double | bigint | Long): bigint {
+    // Connection ids are always integral, so it's safe to coerce doubles as well as
+    // any integral type.
+    return Long.isLong(serverConnectionId)
+      ? serverConnectionId.toBigInt()
+      : // @ts-expect-error: Doubles are coercible to number
+        BigInt(serverConnectionId);
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cmap/wire_protocol/compression.ts b/backend/node_modules/mongodb/src/cmap/wire_protocol/compression.ts
new file mode 100644
index 0000000..e9f6565
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/wire_protocol/compression.ts
@@ -0,0 +1,196 @@
+import { promisify } from 'util';
+import * as zlib from 'zlib';
+
+import { LEGACY_HELLO_COMMAND } from '../../constants';
+import { getSnappy, getZstdLibrary, type SnappyLib, type ZStandard } from '../../deps';
+import { MongoDecompressionError, MongoInvalidArgumentError } from '../../error';
+import {
+  type MessageHeader,
+  OpCompressedRequest,
+  OpMsgResponse,
+  OpReply,
+  type WriteProtocolMessageType
+} from '../commands';
+import { OP_COMPRESSED, OP_MSG } from './constants';
+
+/** @public */
+export const Compressor = Object.freeze({
+  none: 0,
+  snappy: 1,
+  zlib: 2,
+  zstd: 3
+} as const);
+
+/** @public */
+export type Compressor = (typeof Compressor)[CompressorName];
+
+/** @public */
+export type CompressorName = keyof typeof Compressor;
+
+export const uncompressibleCommands = new Set([
+  LEGACY_HELLO_COMMAND,
+  'saslStart',
+  'saslContinue',
+  'getnonce',
+  'authenticate',
+  'createUser',
+  'updateUser',
+  'copydbSaslStart',
+  'copydbgetnonce',
+  'copydb'
+]);
+
+const ZSTD_COMPRESSION_LEVEL = 3;
+
+const zlibInflate = promisify(zlib.inflate.bind(zlib));
+const zlibDeflate = promisify(zlib.deflate.bind(zlib));
+
+let zstd: ZStandard;
+let Snappy: SnappyLib | null = null;
+function loadSnappy() {
+  if (Snappy == null) {
+    const snappyImport = getSnappy();
+    if ('kModuleError' in snappyImport) {
+      throw snappyImport.kModuleError;
+    }
+    Snappy = snappyImport;
+  }
+  return Snappy;
+}
+
+// Facilitate compressing a message using an agreed compressor
+export async function compress(
+  options: { zlibCompressionLevel: number; agreedCompressor: CompressorName },
+  dataToBeCompressed: Buffer
+): Promise<Buffer> {
+  const zlibOptions = {} as zlib.ZlibOptions;
+  switch (options.agreedCompressor) {
+    case 'snappy': {
+      Snappy ??= loadSnappy();
+      return await Snappy.compress(dataToBeCompressed);
+    }
+    case 'zstd': {
+      loadZstd();
+      if ('kModuleError' in zstd) {
+        throw zstd['kModuleError'];
+      }
+      return await zstd.compress(dataToBeCompressed, ZSTD_COMPRESSION_LEVEL);
+    }
+    case 'zlib': {
+      if (options.zlibCompressionLevel) {
+        zlibOptions.level = options.zlibCompressionLevel;
+      }
+      return await zlibDeflate(dataToBeCompressed, zlibOptions);
+    }
+    default: {
+      throw new MongoInvalidArgumentError(
+        `Unknown compressor ${options.agreedCompressor} failed to compress`
+      );
+    }
+  }
+}
+
+// Decompress a message using the given compressor
+export async function decompress(compressorID: number, compressedData: Buffer): Promise<Buffer> {
+  if (
+    compressorID !== Compressor.snappy &&
+    compressorID !== Compressor.zstd &&
+    compressorID !== Compressor.zlib &&
+    compressorID !== Compressor.none
+  ) {
+    throw new MongoDecompressionError(
+      `Server sent message compressed using an unsupported compressor. (Received compressor ID ${compressorID})`
+    );
+  }
+
+  switch (compressorID) {
+    case Compressor.snappy: {
+      Snappy ??= loadSnappy();
+      return await Snappy.uncompress(compressedData, { asBuffer: true });
+    }
+    case Compressor.zstd: {
+      loadZstd();
+      if ('kModuleError' in zstd) {
+        throw zstd['kModuleError'];
+      }
+      return await zstd.decompress(compressedData);
+    }
+    case Compressor.zlib: {
+      return await zlibInflate(compressedData);
+    }
+    default: {
+      return compressedData;
+    }
+  }
+}
+
+/**
+ * Load ZStandard if it is not already set.
+ */
+function loadZstd() {
+  if (!zstd) {
+    zstd = getZstdLibrary();
+  }
+}
+
+const MESSAGE_HEADER_SIZE = 16;
+
+/**
+ * @internal
+ *
+ * Compresses an OP_MSG or OP_QUERY message, if compression is configured.  This method
+ * also serializes the command to BSON.
+ */
+export async function compressCommand(
+  command: WriteProtocolMessageType,
+  description: { agreedCompressor?: CompressorName; zlibCompressionLevel?: number }
+): Promise<Buffer> {
+  const finalCommand =
+    description.agreedCompressor === 'none' || !OpCompressedRequest.canCompress(command)
+      ? command
+      : new OpCompressedRequest(command, {
+          agreedCompressor: description.agreedCompressor ?? 'none',
+          zlibCompressionLevel: description.zlibCompressionLevel ?? 0
+        });
+  const data = await finalCommand.toBin();
+  return Buffer.concat(data);
+}
+
+/**
+ * @internal
+ *
+ * Decompresses an OP_MSG or OP_QUERY response from the server, if compression is configured.
+ *
+ * This method does not parse the response's BSON.
+ */
+export async function decompressResponse(message: Buffer): Promise<OpMsgResponse | OpReply> {
+  const messageHeader: MessageHeader = {
+    length: message.readInt32LE(0),
+    requestId: message.readInt32LE(4),
+    responseTo: message.readInt32LE(8),
+    opCode: message.readInt32LE(12)
+  };
+
+  if (messageHeader.opCode !== OP_COMPRESSED) {
+    const ResponseType = messageHeader.opCode === OP_MSG ? OpMsgResponse : OpReply;
+    const messageBody = message.subarray(MESSAGE_HEADER_SIZE);
+    return new ResponseType(message, messageHeader, messageBody);
+  }
+
+  const header: MessageHeader = {
+    ...messageHeader,
+    fromCompressed: true,
+    opCode: message.readInt32LE(MESSAGE_HEADER_SIZE),
+    length: message.readInt32LE(MESSAGE_HEADER_SIZE + 4)
+  };
+  const compressorID = message[MESSAGE_HEADER_SIZE + 8];
+  const compressedBuffer = message.slice(MESSAGE_HEADER_SIZE + 9);
+
+  // recalculate based on wrapped opcode
+  const ResponseType = header.opCode === OP_MSG ? OpMsgResponse : OpReply;
+  const messageBody = await decompress(compressorID, compressedBuffer);
+  if (messageBody.length !== header.length) {
+    throw new MongoDecompressionError('Message body and message header must be the same length');
+  }
+  return new ResponseType(message, header, messageBody);
+}
diff --git a/backend/node_modules/mongodb/src/cmap/wire_protocol/constants.ts b/backend/node_modules/mongodb/src/cmap/wire_protocol/constants.ts
new file mode 100644
index 0000000..9e85cab
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/wire_protocol/constants.ts
@@ -0,0 +1,13 @@
+export const MIN_SUPPORTED_SERVER_VERSION = '4.0';
+export const MAX_SUPPORTED_SERVER_VERSION = '8.0';
+export const MIN_SUPPORTED_WIRE_VERSION = 7;
+export const MAX_SUPPORTED_WIRE_VERSION = 25;
+export const MIN_SUPPORTED_QE_WIRE_VERSION = 21;
+export const MIN_SUPPORTED_QE_SERVER_VERSION = '7.0';
+export const OP_REPLY = 1;
+export const OP_UPDATE = 2001;
+export const OP_INSERT = 2002;
+export const OP_QUERY = 2004;
+export const OP_DELETE = 2006;
+export const OP_COMPRESSED = 2012;
+export const OP_MSG = 2013;
diff --git a/backend/node_modules/mongodb/src/cmap/wire_protocol/on_data.ts b/backend/node_modules/mongodb/src/cmap/wire_protocol/on_data.ts
new file mode 100644
index 0000000..f673261
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/wire_protocol/on_data.ts
@@ -0,0 +1,128 @@
+import { type EventEmitter } from 'events';
+
+import { type TimeoutContext } from '../../timeout';
+import { List, promiseWithResolvers } from '../../utils';
+
+/**
+ * @internal
+ * An object holding references to a promise's resolve and reject functions.
+ */
+type PendingPromises = Omit<
+  ReturnType<typeof promiseWithResolvers<IteratorResult<Buffer>>>,
+  'promise'
+>;
+
+/**
+ * onData is adapted from Node.js' events.on helper
+ * https://nodejs.org/api/events.html#eventsonemitter-eventname-options
+ *
+ * Returns an AsyncIterator that iterates each 'data' event emitted from emitter.
+ * It will reject upon an error event.
+ */
+export function onData(
+  emitter: EventEmitter,
+  { timeoutContext }: { timeoutContext?: TimeoutContext }
+) {
+  // Setup pending events and pending promise lists
+  /**
+   * When the caller has not yet called .next(), we store the
+   * value from the event in this list. Next time they call .next()
+   * we pull the first value out of this list and resolve a promise with it.
+   */
+  const unconsumedEvents = new List<Buffer>();
+  /**
+   * When there has not yet been an event, a new promise will be created
+   * and implicitly stored in this list. When an event occurs we take the first
+   * promise in this list and resolve it.
+   */
+  const unconsumedPromises = new List<PendingPromises>();
+
+  /**
+   * Stored an error created by an error event.
+   * This error will turn into a rejection for the subsequent .next() call
+   */
+  let error: Error | null = null;
+
+  /** Set to true only after event listeners have been removed. */
+  let finished = false;
+
+  const iterator: AsyncGenerator<Buffer> = {
+    next() {
+      // First, we consume all unread events
+      const value = unconsumedEvents.shift();
+      if (value != null) {
+        return Promise.resolve({ value, done: false });
+      }
+
+      // Then we error, if an error happened
+      // This happens one time if at all, because after 'error'
+      // we stop listening
+      if (error != null) {
+        const p = Promise.reject(error);
+        // Only the first element errors
+        error = null;
+        return p;
+      }
+
+      // If the iterator is finished, resolve to done
+      if (finished) return closeHandler();
+
+      // Wait until an event happens
+      const { promise, resolve, reject } = promiseWithResolvers<IteratorResult<Buffer>>();
+      unconsumedPromises.push({ resolve, reject });
+      return promise;
+    },
+
+    return() {
+      return closeHandler();
+    },
+
+    throw(err: Error) {
+      errorHandler(err);
+      return Promise.resolve({ value: undefined, done: true });
+    },
+
+    [Symbol.asyncIterator]() {
+      return this;
+    }
+  };
+
+  // Adding event handlers
+  emitter.on('data', eventHandler);
+  emitter.on('error', errorHandler);
+
+  const timeoutForSocketRead = timeoutContext?.timeoutForSocketRead;
+  timeoutForSocketRead?.throwIfExpired();
+  timeoutForSocketRead?.then(undefined, errorHandler);
+
+  return iterator;
+
+  function eventHandler(value: Buffer) {
+    const promise = unconsumedPromises.shift();
+    if (promise != null) promise.resolve({ value, done: false });
+    else unconsumedEvents.push(value);
+  }
+
+  function errorHandler(err: Error) {
+    const promise = unconsumedPromises.shift();
+
+    if (promise != null) promise.reject(err);
+    else error = err;
+    void closeHandler();
+  }
+
+  function closeHandler() {
+    // Adding event handlers
+    emitter.off('data', eventHandler);
+    emitter.off('error', errorHandler);
+    finished = true;
+    timeoutForSocketRead?.clear();
+    const doneResult = { value: undefined, done: finished } as const;
+
+    for (const promise of unconsumedPromises) {
+      promise.resolve(doneResult);
+    }
+
+    return Promise.resolve(doneResult);
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cmap/wire_protocol/on_demand/document.ts b/backend/node_modules/mongodb/src/cmap/wire_protocol/on_demand/document.ts
new file mode 100644
index 0000000..98189b3
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/wire_protocol/on_demand/document.ts
@@ -0,0 +1,353 @@
+import {
+  Binary,
+  type BSONElement,
+  BSONError,
+  BSONType,
+  deserialize,
+  type DeserializeOptions,
+  getBigInt64LE,
+  getFloat64LE,
+  getInt32LE,
+  ObjectId,
+  parseToElementsToArray,
+  Timestamp,
+  toUTF8
+} from '../../../bson';
+
+// eslint-disable-next-line no-restricted-syntax
+const enum BSONElementOffset {
+  type = 0,
+  nameOffset = 1,
+  nameLength = 2,
+  offset = 3,
+  length = 4
+}
+
+/** @internal */
+export type JSTypeOf = {
+  [BSONType.null]: null;
+  [BSONType.undefined]: null;
+  [BSONType.double]: number;
+  [BSONType.int]: number;
+  [BSONType.long]: bigint;
+  [BSONType.timestamp]: Timestamp;
+  [BSONType.binData]: Binary;
+  [BSONType.bool]: boolean;
+  [BSONType.objectId]: ObjectId;
+  [BSONType.string]: string;
+  [BSONType.date]: Date;
+  [BSONType.object]: OnDemandDocument;
+  [BSONType.array]: OnDemandDocument;
+};
+
+/** @internal */
+type CachedBSONElement = { element: BSONElement; value: any | undefined };
+
+/**
+ * @internal
+ *
+ * Options for `OnDemandDocument.toObject()`. Validation is required to ensure
+ * that callers provide utf8 validation options. */
+export type OnDemandDocumentDeserializeOptions = Omit<DeserializeOptions, 'validation'> &
+  Required<Pick<DeserializeOptions, 'validation'>>;
+
+/** @internal */
+export class OnDemandDocument {
+  /**
+   * Maps JS strings to elements and jsValues for speeding up subsequent lookups.
+   * - If `false` then name does not exist in the BSON document
+   * - If `CachedBSONElement` instance name exists
+   * - If `cache[name].value == null` jsValue has not yet been parsed
+   *   - Null/Undefined values do not get cached because they are zero-length values.
+   */
+  private readonly cache: Record<string, CachedBSONElement | false | undefined> =
+    Object.create(null);
+  /** Caches the index of elements that have been named */
+  private readonly indexFound: Record<number, boolean> = Object.create(null);
+
+  /** All bson elements in this document */
+  private readonly elements: ReadonlyArray<BSONElement>;
+
+  constructor(
+    /** BSON bytes, this document begins at offset */
+    protected readonly bson: Uint8Array,
+    /** The start of the document */
+    private readonly offset = 0,
+    /** If this is an embedded document, indicates if this was a BSON array */
+    public readonly isArray = false,
+    /** If elements was already calculated */
+    elements?: BSONElement[]
+  ) {
+    this.elements = elements ?? parseToElementsToArray(this.bson, offset);
+  }
+
+  /** Only supports basic latin strings */
+  private isElementName(name: string, element: BSONElement): boolean {
+    const nameLength = element[BSONElementOffset.nameLength];
+    const nameOffset = element[BSONElementOffset.nameOffset];
+
+    if (name.length !== nameLength) return false;
+
+    const nameEnd = nameOffset + nameLength;
+    for (
+      let byteIndex = nameOffset, charIndex = 0;
+      charIndex < name.length && byteIndex < nameEnd;
+      charIndex++, byteIndex++
+    ) {
+      if (this.bson[byteIndex] !== name.charCodeAt(charIndex)) return false;
+    }
+
+    return true;
+  }
+
+  /**
+   * Seeks into the elements array for an element matching the given name.
+   *
+   * @remarks
+   * Caching:
+   * - Caches the existence of a property making subsequent look ups for non-existent properties return immediately
+   * - Caches names mapped to elements to avoid reiterating the array and comparing the name again
+   * - Caches the index at which an element has been found to prevent rechecking against elements already determined to belong to another name
+   *
+   * @param name - a basic latin string name of a BSON element
+   * @returns
+   */
+  private getElement(name: string | number): CachedBSONElement | null {
+    const cachedElement = this.cache[name];
+    if (cachedElement === false) return null;
+
+    if (cachedElement != null) {
+      return cachedElement;
+    }
+
+    if (typeof name === 'number') {
+      if (this.isArray) {
+        if (name < this.elements.length) {
+          const element = this.elements[name];
+          const cachedElement = { element, value: undefined };
+          this.cache[name] = cachedElement;
+          this.indexFound[name] = true;
+          return cachedElement;
+        } else {
+          return null;
+        }
+      } else {
+        return null;
+      }
+    }
+
+    for (let index = 0; index < this.elements.length; index++) {
+      const element = this.elements[index];
+
+      // skip this element if it has already been associated with a name
+      if (!(index in this.indexFound) && this.isElementName(name, element)) {
+        const cachedElement = { element, value: undefined };
+        this.cache[name] = cachedElement;
+        this.indexFound[index] = true;
+        return cachedElement;
+      }
+    }
+
+    this.cache[name] = false;
+    return null;
+  }
+
+  /**
+   * Translates BSON bytes into a javascript value. Checking `as` against the BSON element's type
+   * this methods returns the small subset of BSON types that the driver needs to function.
+   *
+   * @remarks
+   * - BSONType.null and BSONType.undefined always return null
+   * - If the type requested does not match this returns null
+   *
+   * @param element - The element to revive to a javascript value
+   * @param as - A type byte expected to be returned
+   */
+  private toJSValue<T extends keyof JSTypeOf>(element: BSONElement, as: T): JSTypeOf[T];
+  private toJSValue(element: BSONElement, as: keyof JSTypeOf): any {
+    const type = element[BSONElementOffset.type];
+    const offset = element[BSONElementOffset.offset];
+    const length = element[BSONElementOffset.length];
+
+    if (as !== type) {
+      return null;
+    }
+
+    switch (as) {
+      case BSONType.null:
+      case BSONType.undefined:
+        return null;
+      case BSONType.double:
+        return getFloat64LE(this.bson, offset);
+      case BSONType.int:
+        return getInt32LE(this.bson, offset);
+      case BSONType.long:
+        return getBigInt64LE(this.bson, offset);
+      case BSONType.bool:
+        return Boolean(this.bson[offset]);
+      case BSONType.objectId:
+        return new ObjectId(this.bson.subarray(offset, offset + 12));
+      case BSONType.timestamp:
+        return new Timestamp(getBigInt64LE(this.bson, offset));
+      case BSONType.string:
+        return toUTF8(this.bson, offset + 4, offset + length - 1, false);
+      case BSONType.binData: {
+        const totalBinarySize = getInt32LE(this.bson, offset);
+        const subType = this.bson[offset + 4];
+
+        if (subType === 2) {
+          const subType2BinarySize = getInt32LE(this.bson, offset + 1 + 4);
+          if (subType2BinarySize < 0)
+            throw new BSONError('Negative binary type element size found for subtype 0x02');
+          if (subType2BinarySize > totalBinarySize - 4)
+            throw new BSONError('Binary type with subtype 0x02 contains too long binary size');
+          if (subType2BinarySize < totalBinarySize - 4)
+            throw new BSONError('Binary type with subtype 0x02 contains too short binary size');
+          return new Binary(
+            this.bson.subarray(offset + 1 + 4 + 4, offset + 1 + 4 + 4 + subType2BinarySize),
+            2
+          );
+        }
+
+        return new Binary(
+          this.bson.subarray(offset + 1 + 4, offset + 1 + 4 + totalBinarySize),
+          subType
+        );
+      }
+      case BSONType.date:
+        // Pretend this is correct.
+        return new Date(Number(getBigInt64LE(this.bson, offset)));
+
+      case BSONType.object:
+        return new OnDemandDocument(this.bson, offset);
+      case BSONType.array:
+        return new OnDemandDocument(this.bson, offset, true);
+
+      default:
+        throw new BSONError(`Unsupported BSON type: ${as}`);
+    }
+  }
+
+  /**
+   * Returns the number of elements in this BSON document
+   */
+  public size() {
+    return this.elements.length;
+  }
+
+  /**
+   * Checks for the existence of an element by name.
+   *
+   * @remarks
+   * Uses `getElement` with the expectation that will populate caches such that a `has` call
+   * followed by a `getElement` call will not repeat the cost paid by the first look up.
+   *
+   * @param name - element name
+   */
+  public has(name: string): boolean {
+    const cachedElement = this.cache[name];
+    if (cachedElement === false) return false;
+    if (cachedElement != null) return true;
+    return this.getElement(name) != null;
+  }
+
+  /**
+   * Turns BSON element with `name` into a javascript value.
+   *
+   * @typeParam T - must be one of the supported BSON types determined by `JSTypeOf` this will determine the return type of this function.
+   * @param name - the element name
+   * @param as - the bson type expected
+   * @param required - whether or not the element is expected to exist, if true this function will throw if it is not present
+   */
+  public get<const T extends keyof JSTypeOf>(
+    name: string | number,
+    as: T,
+    required?: boolean | undefined
+  ): JSTypeOf[T] | null;
+
+  /** `required` will make `get` throw if name does not exist or is null/undefined */
+  public get<const T extends keyof JSTypeOf>(
+    name: string | number,
+    as: T,
+    required: true
+  ): JSTypeOf[T];
+
+  public get<const T extends keyof JSTypeOf>(
+    name: string | number,
+    as: T,
+    required?: boolean
+  ): JSTypeOf[T] | null {
+    const element = this.getElement(name);
+    if (element == null) {
+      if (required === true) {
+        throw new BSONError(`BSON element "${name}" is missing`);
+      } else {
+        return null;
+      }
+    }
+
+    if (element.value == null) {
+      const value = this.toJSValue(element.element, as);
+      if (value == null) {
+        if (required === true) {
+          throw new BSONError(`BSON element "${name}" is missing`);
+        } else {
+          return null;
+        }
+      }
+      // It is important to never store null
+      element.value = value;
+    }
+
+    return element.value;
+  }
+
+  /**
+   * Supports returning int, double, long, and bool as javascript numbers
+   *
+   * @remarks
+   * **NOTE:**
+   * - Use this _only_ when you believe the potential precision loss of an int64 is acceptable
+   * - This method does not cache the result as Longs or booleans would be stored incorrectly
+   *
+   * @param name - element name
+   * @param required - throws if name does not exist
+   */
+  public getNumber<const Req extends boolean = false>(
+    name: string,
+    required?: Req
+  ): Req extends true ? number : number | null;
+  public getNumber(name: string, required: boolean): number | null {
+    const maybeBool = this.get(name, BSONType.bool);
+    const bool = maybeBool == null ? null : maybeBool ? 1 : 0;
+
+    const maybeLong = this.get(name, BSONType.long);
+    const long = maybeLong == null ? null : Number(maybeLong);
+
+    const result = bool ?? long ?? this.get(name, BSONType.int) ?? this.get(name, BSONType.double);
+
+    if (required === true && result == null) {
+      throw new BSONError(`BSON element "${name}" is missing`);
+    }
+
+    return result;
+  }
+
+  /**
+   * Deserialize this object, DOES NOT cache result so avoid multiple invocations
+   * @param options - BSON deserialization options
+   */
+  public toObject(options?: OnDemandDocumentDeserializeOptions): Record<string, any> {
+    return deserialize(this.bson, {
+      ...options,
+      index: this.offset,
+      allowObjectSmallerThanBufferSize: true
+    });
+  }
+
+  /** Returns this document's bytes only */
+  toBytes() {
+    const size = getInt32LE(this.bson, this.offset);
+    return this.bson.subarray(this.offset, this.offset + size);
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cmap/wire_protocol/responses.ts b/backend/node_modules/mongodb/src/cmap/wire_protocol/responses.ts
new file mode 100644
index 0000000..1d20566
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/wire_protocol/responses.ts
@@ -0,0 +1,394 @@
+import {
+  type BSONElement,
+  type BSONSerializeOptions,
+  BSONType,
+  type DeserializeOptions,
+  type Document,
+  Long,
+  parseToElementsToArray,
+  parseUtf8ValidationOption,
+  pluckBSONSerializeOptions,
+  type Timestamp
+} from '../../bson';
+import { MONGODB_ERROR_CODES, MongoUnexpectedServerResponseError } from '../../error';
+import { type ClusterTime } from '../../sdam/common';
+import { decorateDecryptionResult, ns } from '../../utils';
+import {
+  type JSTypeOf,
+  OnDemandDocument,
+  type OnDemandDocumentDeserializeOptions
+} from './on_demand/document';
+
+// eslint-disable-next-line no-restricted-syntax
+const enum BSONElementOffset {
+  type = 0,
+  nameOffset = 1,
+  nameLength = 2,
+  offset = 3,
+  length = 4
+}
+/**
+ * Accepts a BSON payload and checks for na "ok: 0" element.
+ * This utility is intended to prevent calling response class constructors
+ * that expect the result to be a success and demand certain properties to exist.
+ *
+ * For example, a cursor response always expects a cursor embedded document.
+ * In order to write the class such that the properties reflect that assertion (non-null)
+ * we cannot invoke the subclass constructor if the BSON represents an error.
+ *
+ * @param bytes - BSON document returned from the server
+ */
+export function isErrorResponse(bson: Uint8Array, elements: BSONElement[]): boolean {
+  for (let eIdx = 0; eIdx < elements.length; eIdx++) {
+    const element = elements[eIdx];
+
+    if (element[BSONElementOffset.nameLength] === 2) {
+      const nameOffset = element[BSONElementOffset.nameOffset];
+
+      // 111 == "o", 107 == "k"
+      if (bson[nameOffset] === 111 && bson[nameOffset + 1] === 107) {
+        const valueOffset = element[BSONElementOffset.offset];
+        const valueLength = element[BSONElementOffset.length];
+
+        // If any byte in the length of the ok number (works for any type) is non zero,
+        // then it is considered "ok: 1"
+        for (let i = valueOffset; i < valueOffset + valueLength; i++) {
+          if (bson[i] !== 0x00) return false;
+        }
+
+        return true;
+      }
+    }
+  }
+
+  return true;
+}
+
+/** @internal */
+export type MongoDBResponseConstructor = {
+  new (bson: Uint8Array, offset?: number, isArray?: boolean): MongoDBResponse;
+  make(bson: Uint8Array): MongoDBResponse;
+};
+
+/** @internal */
+export class MongoDBResponse extends OnDemandDocument {
+  // Wrap error thrown from BSON
+  public override get<const T extends keyof JSTypeOf>(
+    name: string | number,
+    as: T,
+    required?: false | undefined
+  ): JSTypeOf[T] | null;
+  public override get<const T extends keyof JSTypeOf>(
+    name: string | number,
+    as: T,
+    required: true
+  ): JSTypeOf[T];
+  public override get<const T extends keyof JSTypeOf>(
+    name: string | number,
+    as: T,
+    required?: boolean | undefined
+  ): JSTypeOf[T] | null {
+    try {
+      return super.get(name, as, required);
+    } catch (cause) {
+      throw new MongoUnexpectedServerResponseError(cause.message, { cause });
+    }
+  }
+
+  static is(value: unknown): value is MongoDBResponse {
+    return value instanceof MongoDBResponse;
+  }
+
+  static make(bson: Uint8Array) {
+    const elements = parseToElementsToArray(bson, 0);
+    const isError = isErrorResponse(bson, elements);
+    return isError
+      ? new MongoDBResponse(bson, 0, false, elements)
+      : new this(bson, 0, false, elements);
+  }
+
+  // {ok:1}
+  static empty = new MongoDBResponse(new Uint8Array([13, 0, 0, 0, 16, 111, 107, 0, 1, 0, 0, 0, 0]));
+
+  /**
+   * Returns true iff:
+   * - ok is 0 and the top-level code === 50
+   * - ok is 1 and the writeErrors array contains a code === 50
+   * - ok is 1 and the writeConcern object contains a code === 50
+   */
+  get isMaxTimeExpiredError() {
+    // {ok: 0, code: 50 ... }
+    const isTopLevel = this.ok === 0 && this.code === MONGODB_ERROR_CODES.MaxTimeMSExpired;
+    if (isTopLevel) return true;
+
+    if (this.ok === 0) return false;
+
+    // {ok: 1, writeConcernError: {code: 50 ... }}
+    const isWriteConcern =
+      this.get('writeConcernError', BSONType.object)?.getNumber('code') ===
+      MONGODB_ERROR_CODES.MaxTimeMSExpired;
+    if (isWriteConcern) return true;
+
+    const writeErrors = this.get('writeErrors', BSONType.array);
+    if (writeErrors?.size()) {
+      for (let i = 0; i < writeErrors.size(); i++) {
+        const isWriteError =
+          writeErrors.get(i, BSONType.object)?.getNumber('code') ===
+          MONGODB_ERROR_CODES.MaxTimeMSExpired;
+
+        // {ok: 1, writeErrors: [{code: 50 ... }]}
+        if (isWriteError) return true;
+      }
+    }
+
+    return false;
+  }
+
+  /**
+   * Drivers can safely assume that the `recoveryToken` field is always a BSON document but drivers MUST NOT modify the
+   * contents of the document.
+   */
+  get recoveryToken(): Document | null {
+    return (
+      this.get('recoveryToken', BSONType.object)?.toObject({
+        promoteValues: false,
+        promoteLongs: false,
+        promoteBuffers: false,
+        validation: { utf8: true }
+      }) ?? null
+    );
+  }
+
+  /**
+   * The server creates a cursor in response to a snapshot find/aggregate command and reports atClusterTime within the cursor field in the response.
+   * For the distinct command the server adds a top-level atClusterTime field to the response.
+   * The atClusterTime field represents the timestamp of the read and is guaranteed to be majority committed.
+   */
+  public get atClusterTime(): Timestamp | null {
+    return (
+      this.get('cursor', BSONType.object)?.get('atClusterTime', BSONType.timestamp) ??
+      this.get('atClusterTime', BSONType.timestamp)
+    );
+  }
+
+  public get operationTime(): Timestamp | null {
+    return this.get('operationTime', BSONType.timestamp);
+  }
+
+  /** Normalizes whatever BSON value is "ok" to a JS number 1 or 0. */
+  public get ok(): 0 | 1 {
+    return this.getNumber('ok') ? 1 : 0;
+  }
+
+  public get $err(): string | null {
+    return this.get('$err', BSONType.string);
+  }
+
+  public get errmsg(): string | null {
+    return this.get('errmsg', BSONType.string);
+  }
+
+  public get code(): number | null {
+    return this.getNumber('code');
+  }
+
+  private clusterTime?: ClusterTime | null;
+  public get $clusterTime(): ClusterTime | null {
+    if (!('clusterTime' in this)) {
+      const clusterTimeDoc = this.get('$clusterTime', BSONType.object);
+      if (clusterTimeDoc == null) {
+        this.clusterTime = null;
+        return null;
+      }
+      const clusterTime = clusterTimeDoc.get('clusterTime', BSONType.timestamp, true);
+      const signature = clusterTimeDoc.get('signature', BSONType.object)?.toObject();
+      // @ts-expect-error: `signature` is incorrectly typed. It is public API.
+      this.clusterTime = { clusterTime, signature };
+    }
+    return this.clusterTime ?? null;
+  }
+
+  public override toObject(options?: BSONSerializeOptions): Record<string, any> {
+    const exactBSONOptions = {
+      ...pluckBSONSerializeOptions(options ?? {}),
+      validation: parseUtf8ValidationOption(options)
+    };
+    return super.toObject(exactBSONOptions);
+  }
+}
+
+/** @internal */
+export class CursorResponse extends MongoDBResponse {
+  /**
+   * Devtools need to know which keys were encrypted before the driver automatically decrypted them.
+   * If decorating is enabled (`Symbol.for('@@mdb.decorateDecryptionResult')`), this field will be set,
+   * storing the original encrypted response from the server, so that we can build an object that has
+   * the list of BSON keys that were encrypted stored at a well known symbol: `Symbol.for('@@mdb.decryptedKeys')`.
+   */
+  encryptedResponse?: MongoDBResponse;
+  /**
+   * This supports a feature of the FindCursor.
+   * It is an optimization to avoid an extra getMore when the limit has been reached
+   */
+  static emptyGetMore: CursorResponse = {
+    id: new Long(0),
+    length: 0,
+    shift: () => null
+  } as unknown as CursorResponse;
+
+  static override is(value: unknown): value is CursorResponse {
+    return value instanceof CursorResponse || value === CursorResponse.emptyGetMore;
+  }
+
+  private _batch: OnDemandDocument | null = null;
+  private iterated = 0;
+
+  get cursor() {
+    return this.get('cursor', BSONType.object, true);
+  }
+
+  public get id(): Long {
+    try {
+      return Long.fromBigInt(this.cursor.get('id', BSONType.long, true));
+    } catch (cause) {
+      throw new MongoUnexpectedServerResponseError(cause.message, { cause });
+    }
+  }
+
+  public get ns() {
+    const namespace = this.cursor.get('ns', BSONType.string);
+    if (namespace != null) return ns(namespace);
+    return null;
+  }
+
+  public get length() {
+    return Math.max(this.batchSize - this.iterated, 0);
+  }
+
+  private _encryptedBatch: OnDemandDocument | null = null;
+  get encryptedBatch() {
+    if (this.encryptedResponse == null) return null;
+    if (this._encryptedBatch != null) return this._encryptedBatch;
+
+    const cursor = this.encryptedResponse?.get('cursor', BSONType.object);
+    if (cursor?.has('firstBatch'))
+      this._encryptedBatch = cursor.get('firstBatch', BSONType.array, true);
+    else if (cursor?.has('nextBatch'))
+      this._encryptedBatch = cursor.get('nextBatch', BSONType.array, true);
+    else throw new MongoUnexpectedServerResponseError('Cursor document did not contain a batch');
+
+    return this._encryptedBatch;
+  }
+
+  private get batch() {
+    if (this._batch != null) return this._batch;
+    const cursor = this.cursor;
+    if (cursor.has('firstBatch')) this._batch = cursor.get('firstBatch', BSONType.array, true);
+    else if (cursor.has('nextBatch')) this._batch = cursor.get('nextBatch', BSONType.array, true);
+    else throw new MongoUnexpectedServerResponseError('Cursor document did not contain a batch');
+    return this._batch;
+  }
+
+  public get batchSize() {
+    return this.batch?.size();
+  }
+
+  public get postBatchResumeToken() {
+    return (
+      this.cursor.get('postBatchResumeToken', BSONType.object)?.toObject({
+        promoteValues: false,
+        promoteLongs: false,
+        promoteBuffers: false,
+        validation: { utf8: true }
+      }) ?? null
+    );
+  }
+
+  public shift(options: OnDemandDocumentDeserializeOptions): any {
+    if (this.iterated >= this.batchSize) {
+      return null;
+    }
+
+    const result = this.batch.get(this.iterated, BSONType.object, true) ?? null;
+    const encryptedResult = this.encryptedBatch?.get(this.iterated, BSONType.object, true) ?? null;
+
+    this.iterated += 1;
+
+    if (options?.raw) {
+      return result.toBytes();
+    } else {
+      const object = result.toObject(options);
+      if (encryptedResult) {
+        decorateDecryptionResult(object, encryptedResult.toObject(options), true);
+      }
+      return object;
+    }
+  }
+
+  public clear() {
+    this.iterated = this.batchSize;
+  }
+}
+
+/**
+ * Explain responses have nothing to do with cursor responses
+ * This class serves to temporarily avoid refactoring how cursors handle
+ * explain responses which is to detect that the response is not cursor-like and return the explain
+ * result as the "first and only" document in the "batch" and end the "cursor"
+ */
+export class ExplainedCursorResponse extends CursorResponse {
+  isExplain = true;
+
+  override get id(): Long {
+    return Long.fromBigInt(0n);
+  }
+
+  override get batchSize() {
+    return 0;
+  }
+
+  override get ns() {
+    return null;
+  }
+
+  _length = 1;
+  override get length(): number {
+    return this._length;
+  }
+
+  override shift(options?: DeserializeOptions) {
+    if (this._length === 0) return null;
+    this._length -= 1;
+    return this.toObject(options);
+  }
+}
+
+/**
+ * Client bulk writes have some extra metadata at the top level that needs to be
+ * included in the result returned to the user.
+ */
+export class ClientBulkWriteCursorResponse extends CursorResponse {
+  get insertedCount() {
+    return this.get('nInserted', BSONType.int, true);
+  }
+
+  get upsertedCount() {
+    return this.get('nUpserted', BSONType.int, true);
+  }
+
+  get matchedCount() {
+    return this.get('nMatched', BSONType.int, true);
+  }
+
+  get modifiedCount() {
+    return this.get('nModified', BSONType.int, true);
+  }
+
+  get deletedCount() {
+    return this.get('nDeleted', BSONType.int, true);
+  }
+
+  get writeConcernError() {
+    return this.get('writeConcernError', BSONType.object, false);
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cmap/wire_protocol/shared.ts b/backend/node_modules/mongodb/src/cmap/wire_protocol/shared.ts
new file mode 100644
index 0000000..30757da
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cmap/wire_protocol/shared.ts
@@ -0,0 +1,48 @@
+import { MongoInvalidArgumentError } from '../../error';
+import { ReadPreference, type ReadPreferenceLike } from '../../read_preference';
+import { ServerType } from '../../sdam/common';
+import type { Server } from '../../sdam/server';
+import type { ServerDescription } from '../../sdam/server_description';
+import type { Topology } from '../../sdam/topology';
+import { TopologyDescription } from '../../sdam/topology_description';
+import type { Connection } from '../connection';
+
+export interface ReadPreferenceOption {
+  readPreference?: ReadPreferenceLike;
+}
+
+export function getReadPreference(options?: ReadPreferenceOption): ReadPreference {
+  // Default to command version of the readPreference.
+  let readPreference = options?.readPreference ?? ReadPreference.primary;
+
+  if (typeof readPreference === 'string') {
+    readPreference = ReadPreference.fromString(readPreference);
+  }
+
+  if (!(readPreference instanceof ReadPreference)) {
+    throw new MongoInvalidArgumentError(
+      'Option "readPreference" must be a ReadPreference instance'
+    );
+  }
+
+  return readPreference;
+}
+
+export function isSharded(topologyOrServer?: Topology | Server | Connection): boolean {
+  if (topologyOrServer == null) {
+    return false;
+  }
+
+  if (topologyOrServer.description && topologyOrServer.description.type === ServerType.Mongos) {
+    return true;
+  }
+
+  // NOTE: This is incredibly inefficient, and should be removed once command construction
+  // happens based on `Server` not `Topology`.
+  if (topologyOrServer.description && topologyOrServer.description instanceof TopologyDescription) {
+    const servers: ServerDescription[] = Array.from(topologyOrServer.description.servers.values());
+    return servers.some((server: ServerDescription) => server.type === ServerType.Mongos);
+  }
+
+  return false;
+}
diff --git a/backend/node_modules/mongodb/src/collection.ts b/backend/node_modules/mongodb/src/collection.ts
new file mode 100644
index 0000000..d7cdc12
--- /dev/null
+++ b/backend/node_modules/mongodb/src/collection.ts
@@ -0,0 +1,1263 @@
+import { type BSONSerializeOptions, type Document, resolveBSONOptions } from './bson';
+import type { AnyBulkWriteOperation, BulkWriteOptions, BulkWriteResult } from './bulk/common';
+import { OrderedBulkOperation } from './bulk/ordered';
+import { UnorderedBulkOperation } from './bulk/unordered';
+import { ChangeStream, type ChangeStreamDocument, type ChangeStreamOptions } from './change_stream';
+import { AggregationCursor } from './cursor/aggregation_cursor';
+import { FindCursor } from './cursor/find_cursor';
+import { ListIndexesCursor } from './cursor/list_indexes_cursor';
+import {
+  ListSearchIndexesCursor,
+  type ListSearchIndexesOptions
+} from './cursor/list_search_indexes_cursor';
+import type { Db } from './db';
+import { MongoInvalidArgumentError, MongoOperationTimeoutError } from './error';
+import type { MongoClient, PkFactory } from './mongo_client';
+import type {
+  Filter,
+  Flatten,
+  OptionalUnlessRequiredId,
+  TODO_NODE_3286,
+  UpdateFilter,
+  WithId,
+  WithoutId
+} from './mongo_types';
+import type { AggregateOptions } from './operations/aggregate';
+import { BulkWriteOperation } from './operations/bulk_write';
+import { CountOperation, type CountOptions } from './operations/count';
+import {
+  DeleteManyOperation,
+  DeleteOneOperation,
+  type DeleteOptions,
+  type DeleteResult
+} from './operations/delete';
+import { DistinctOperation, type DistinctOptions } from './operations/distinct';
+import { DropCollectionOperation, type DropCollectionOptions } from './operations/drop';
+import {
+  EstimatedDocumentCountOperation,
+  type EstimatedDocumentCountOptions
+} from './operations/estimated_document_count';
+import { executeOperation } from './operations/execute_operation';
+import type { FindOptions } from './operations/find';
+import {
+  FindOneAndDeleteOperation,
+  type FindOneAndDeleteOptions,
+  FindOneAndReplaceOperation,
+  type FindOneAndReplaceOptions,
+  FindOneAndUpdateOperation,
+  type FindOneAndUpdateOptions
+} from './operations/find_and_modify';
+import {
+  CreateIndexesOperation,
+  type CreateIndexesOptions,
+  type DropIndexesOptions,
+  DropIndexOperation,
+  type IndexDescription,
+  type IndexDescriptionCompact,
+  type IndexDescriptionInfo,
+  type IndexInformationOptions,
+  type IndexSpecification,
+  type ListIndexesOptions
+} from './operations/indexes';
+import {
+  InsertManyOperation,
+  type InsertManyResult,
+  InsertOneOperation,
+  type InsertOneOptions,
+  type InsertOneResult
+} from './operations/insert';
+import { IsCappedOperation } from './operations/is_capped';
+import type { Hint, OperationOptions } from './operations/operation';
+import { OptionsOperation } from './operations/options_operation';
+import { RenameOperation, type RenameOptions } from './operations/rename';
+import {
+  CreateSearchIndexesOperation,
+  type SearchIndexDescription
+} from './operations/search_indexes/create';
+import { DropSearchIndexOperation } from './operations/search_indexes/drop';
+import { UpdateSearchIndexOperation } from './operations/search_indexes/update';
+import {
+  ReplaceOneOperation,
+  type ReplaceOptions,
+  UpdateManyOperation,
+  UpdateOneOperation,
+  type UpdateOptions,
+  type UpdateResult
+} from './operations/update';
+import { ReadConcern, type ReadConcernLike } from './read_concern';
+import { ReadPreference, type ReadPreferenceLike } from './read_preference';
+import {
+  DEFAULT_PK_FACTORY,
+  MongoDBCollectionNamespace,
+  normalizeHintField,
+  resolveOptions
+} from './utils';
+import { WriteConcern, type WriteConcernOptions } from './write_concern';
+
+/** @public */
+export interface ModifyResult<TSchema = Document> {
+  value: WithId<TSchema> | null;
+  lastErrorObject?: Document;
+  ok: 0 | 1;
+}
+
+/** @public */
+export interface CountDocumentsOptions extends AggregateOptions {
+  /** The number of documents to skip. */
+  skip?: number;
+  /** The maximum amount of documents to consider. */
+  limit?: number;
+}
+
+/** @public */
+export interface CollectionOptions extends BSONSerializeOptions, WriteConcernOptions {
+  /** Specify a read concern for the collection. (only MongoDB 3.2 or higher supported) */
+  readConcern?: ReadConcernLike;
+  /** The preferred read preference (ReadPreference.PRIMARY, ReadPreference.PRIMARY_PREFERRED, ReadPreference.SECONDARY, ReadPreference.SECONDARY_PREFERRED, ReadPreference.NEAREST). */
+  readPreference?: ReadPreferenceLike;
+  /**
+   * @experimental
+   * Specifies the time an operation will run until it throws a timeout error
+   */
+  timeoutMS?: number;
+}
+
+/** @internal */
+export interface CollectionPrivate {
+  pkFactory: PkFactory;
+  db: Db;
+  options: any;
+  namespace: MongoDBCollectionNamespace;
+  readPreference?: ReadPreference;
+  bsonOptions: BSONSerializeOptions;
+  collectionHint?: Hint;
+  readConcern?: ReadConcern;
+  writeConcern?: WriteConcern;
+}
+
+/**
+ * The **Collection** class is an internal class that embodies a MongoDB collection
+ * allowing for insert/find/update/delete and other command operation on that MongoDB collection.
+ *
+ * **COLLECTION Cannot directly be instantiated**
+ * @public
+ *
+ * @example
+ * ```ts
+ * import { MongoClient } from 'mongodb';
+ *
+ * interface Pet {
+ *   name: string;
+ *   kind: 'dog' | 'cat' | 'fish';
+ * }
+ *
+ * const client = new MongoClient('mongodb://localhost:27017');
+ * const pets = client.db().collection<Pet>('pets');
+ *
+ * const petCursor = pets.find();
+ *
+ * for await (const pet of petCursor) {
+ *   console.log(`${pet.name} is a ${pet.kind}!`);
+ * }
+ * ```
+ */
+export class Collection<TSchema extends Document = Document> {
+  /** @internal */
+  s: CollectionPrivate;
+
+  /** @internal */
+  client: MongoClient;
+
+  /**
+   * Create a new Collection instance
+   * @internal
+   */
+  constructor(db: Db, name: string, options?: CollectionOptions) {
+    // Internal state
+    this.s = {
+      db,
+      options,
+      namespace: new MongoDBCollectionNamespace(db.databaseName, name),
+      pkFactory: db.options?.pkFactory ?? DEFAULT_PK_FACTORY,
+      readPreference: ReadPreference.fromOptions(options),
+      bsonOptions: resolveBSONOptions(options, db),
+      readConcern: ReadConcern.fromOptions(options),
+      writeConcern: WriteConcern.fromOptions(options)
+    };
+
+    this.client = db.client;
+  }
+
+  /**
+   * The name of the database this collection belongs to
+   */
+  get dbName(): string {
+    return this.s.namespace.db;
+  }
+
+  /**
+   * The name of this collection
+   */
+  get collectionName(): string {
+    return this.s.namespace.collection;
+  }
+
+  /**
+   * The namespace of this collection, in the format `${this.dbName}.${this.collectionName}`
+   */
+  get namespace(): string {
+    return this.fullNamespace.toString();
+  }
+
+  /**
+   *  @internal
+   *
+   * The `MongoDBNamespace` for the collection.
+   */
+  get fullNamespace(): MongoDBCollectionNamespace {
+    return this.s.namespace;
+  }
+
+  /**
+   * The current readConcern of the collection. If not explicitly defined for
+   * this collection, will be inherited from the parent DB
+   */
+  get readConcern(): ReadConcern | undefined {
+    if (this.s.readConcern == null) {
+      return this.s.db.readConcern;
+    }
+    return this.s.readConcern;
+  }
+
+  /**
+   * The current readPreference of the collection. If not explicitly defined for
+   * this collection, will be inherited from the parent DB
+   */
+  get readPreference(): ReadPreference | undefined {
+    if (this.s.readPreference == null) {
+      return this.s.db.readPreference;
+    }
+
+    return this.s.readPreference;
+  }
+
+  get bsonOptions(): BSONSerializeOptions {
+    return this.s.bsonOptions;
+  }
+
+  /**
+   * The current writeConcern of the collection. If not explicitly defined for
+   * this collection, will be inherited from the parent DB
+   */
+  get writeConcern(): WriteConcern | undefined {
+    if (this.s.writeConcern == null) {
+      return this.s.db.writeConcern;
+    }
+    return this.s.writeConcern;
+  }
+
+  /** The current index hint for the collection */
+  get hint(): Hint | undefined {
+    return this.s.collectionHint;
+  }
+
+  set hint(v: Hint | undefined) {
+    this.s.collectionHint = normalizeHintField(v);
+  }
+
+  public get timeoutMS(): number | undefined {
+    return this.s.options.timeoutMS;
+  }
+
+  /**
+   * Inserts a single document into MongoDB. If documents passed in do not contain the **_id** field,
+   * one will be added to each of the documents missing it by the driver, mutating the document. This behavior
+   * can be overridden by setting the **forceServerObjectId** flag.
+   *
+   * @param doc - The document to insert
+   * @param options - Optional settings for the command
+   */
+  async insertOne(
+    doc: OptionalUnlessRequiredId<TSchema>,
+    options?: InsertOneOptions
+  ): Promise<InsertOneResult<TSchema>> {
+    return await executeOperation(
+      this.client,
+      new InsertOneOperation(
+        this as TODO_NODE_3286,
+        doc,
+        resolveOptions(this, options)
+      ) as TODO_NODE_3286
+    );
+  }
+
+  /**
+   * Inserts an array of documents into MongoDB. If documents passed in do not contain the **_id** field,
+   * one will be added to each of the documents missing it by the driver, mutating the document. This behavior
+   * can be overridden by setting the **forceServerObjectId** flag.
+   *
+   * @param docs - The documents to insert
+   * @param options - Optional settings for the command
+   */
+  async insertMany(
+    docs: ReadonlyArray<OptionalUnlessRequiredId<TSchema>>,
+    options?: BulkWriteOptions
+  ): Promise<InsertManyResult<TSchema>> {
+    return await executeOperation(
+      this.client,
+      new InsertManyOperation(
+        this as TODO_NODE_3286,
+        docs,
+        resolveOptions(this, options ?? { ordered: true })
+      ) as TODO_NODE_3286
+    );
+  }
+
+  /**
+   * Perform a bulkWrite operation without a fluent API
+   *
+   * Legal operation types are
+   * - `insertOne`
+   * - `replaceOne`
+   * - `updateOne`
+   * - `updateMany`
+   * - `deleteOne`
+   * - `deleteMany`
+   *
+   * If documents passed in do not contain the **_id** field,
+   * one will be added to each of the documents missing it by the driver, mutating the document. This behavior
+   * can be overridden by setting the **forceServerObjectId** flag.
+   *
+   * @param operations - Bulk operations to perform
+   * @param options - Optional settings for the command
+   * @throws MongoDriverError if operations is not an array
+   */
+  async bulkWrite(
+    operations: ReadonlyArray<AnyBulkWriteOperation<TSchema>>,
+    options?: BulkWriteOptions
+  ): Promise<BulkWriteResult> {
+    if (!Array.isArray(operations)) {
+      throw new MongoInvalidArgumentError('Argument "operations" must be an array of documents');
+    }
+
+    return await executeOperation(
+      this.client,
+      new BulkWriteOperation(
+        this as TODO_NODE_3286,
+        operations,
+        resolveOptions(this, options ?? { ordered: true })
+      )
+    );
+  }
+
+  /**
+   * Update a single document in a collection
+   *
+   * The value of `update` can be either:
+   * - UpdateFilter<TSchema> - A document that contains update operator expressions,
+   * - Document[] - an aggregation pipeline.
+   *
+   * @param filter - The filter used to select the document to update
+   * @param update - The modifications to apply
+   * @param options - Optional settings for the command
+   */
+  async updateOne(
+    filter: Filter<TSchema>,
+    update: UpdateFilter<TSchema> | Document[],
+    options?: UpdateOptions
+  ): Promise<UpdateResult<TSchema>> {
+    return await executeOperation(
+      this.client,
+      new UpdateOneOperation(
+        this as TODO_NODE_3286,
+        filter,
+        update,
+        resolveOptions(this, options)
+      ) as TODO_NODE_3286
+    );
+  }
+
+  /**
+   * Replace a document in a collection with another document
+   *
+   * @param filter - The filter used to select the document to replace
+   * @param replacement - The Document that replaces the matching document
+   * @param options - Optional settings for the command
+   */
+  async replaceOne(
+    filter: Filter<TSchema>,
+    replacement: WithoutId<TSchema>,
+    options?: ReplaceOptions
+  ): Promise<UpdateResult<TSchema> | Document> {
+    return await executeOperation(
+      this.client,
+      new ReplaceOneOperation(
+        this as TODO_NODE_3286,
+        filter,
+        replacement,
+        resolveOptions(this, options)
+      )
+    );
+  }
+
+  /**
+   * Update multiple documents in a collection
+   *
+   * The value of `update` can be either:
+   * - UpdateFilter<TSchema> - A document that contains update operator expressions,
+   * - Document[] - an aggregation pipeline.
+   *
+   * @param filter - The filter used to select the document to update
+   * @param update - The modifications to apply
+   * @param options - Optional settings for the command
+   */
+  async updateMany(
+    filter: Filter<TSchema>,
+    update: UpdateFilter<TSchema> | Document[],
+    options?: UpdateOptions
+  ): Promise<UpdateResult<TSchema>> {
+    return await executeOperation(
+      this.client,
+      new UpdateManyOperation(
+        this as TODO_NODE_3286,
+        filter,
+        update,
+        resolveOptions(this, options)
+      ) as TODO_NODE_3286
+    );
+  }
+
+  /**
+   * Delete a document from a collection
+   *
+   * @param filter - The filter used to select the document to remove
+   * @param options - Optional settings for the command
+   */
+  async deleteOne(
+    filter: Filter<TSchema> = {},
+    options: DeleteOptions = {}
+  ): Promise<DeleteResult> {
+    return await executeOperation(
+      this.client,
+      new DeleteOneOperation(this as TODO_NODE_3286, filter, resolveOptions(this, options))
+    );
+  }
+
+  /**
+   * Delete multiple documents from a collection
+   *
+   * @param filter - The filter used to select the documents to remove
+   * @param options - Optional settings for the command
+   */
+  async deleteMany(
+    filter: Filter<TSchema> = {},
+    options: DeleteOptions = {}
+  ): Promise<DeleteResult> {
+    return await executeOperation(
+      this.client,
+      new DeleteManyOperation(this as TODO_NODE_3286, filter, resolveOptions(this, options))
+    );
+  }
+
+  /**
+   * Rename the collection.
+   *
+   * @remarks
+   * This operation does not inherit options from the Db or MongoClient.
+   *
+   * @param newName - New name of of the collection.
+   * @param options - Optional settings for the command
+   */
+  async rename(newName: string, options?: RenameOptions): Promise<Collection> {
+    // Intentionally, we do not inherit options from parent for this operation.
+    return await executeOperation(
+      this.client,
+      new RenameOperation(
+        this as TODO_NODE_3286,
+        newName,
+        resolveOptions(undefined, {
+          ...options,
+          readPreference: ReadPreference.PRIMARY
+        })
+      ) as TODO_NODE_3286
+    );
+  }
+
+  /**
+   * Drop the collection from the database, removing it permanently. New accesses will create a new collection.
+   *
+   * @param options - Optional settings for the command
+   */
+  async drop(options?: DropCollectionOptions): Promise<boolean> {
+    return await executeOperation(
+      this.client,
+      new DropCollectionOperation(this.s.db, this.collectionName, options)
+    );
+  }
+
+  /**
+   * Fetches the first document that matches the filter
+   *
+   * @param filter - Query for find Operation
+   * @param options - Optional settings for the command
+   */
+  async findOne(): Promise<WithId<TSchema> | null>;
+  async findOne(filter: Filter<TSchema>): Promise<WithId<TSchema> | null>;
+  async findOne(
+    filter: Filter<TSchema>,
+    options: Omit<FindOptions, 'timeoutMode'>
+  ): Promise<WithId<TSchema> | null>;
+
+  // allow an override of the schema.
+  async findOne<T = TSchema>(): Promise<T | null>;
+  async findOne<T = TSchema>(filter: Filter<TSchema>): Promise<T | null>;
+  async findOne<T = TSchema>(
+    filter: Filter<TSchema>,
+    options?: Omit<FindOptions, 'timeoutMode'>
+  ): Promise<T | null>;
+
+  async findOne(
+    filter: Filter<TSchema> = {},
+    options: FindOptions = {}
+  ): Promise<WithId<TSchema> | null> {
+    const cursor = this.find(filter, options).limit(-1).batchSize(1);
+    const res = await cursor.next();
+    await cursor.close();
+    return res;
+  }
+
+  /**
+   * Creates a cursor for a filter that can be used to iterate over results from MongoDB
+   *
+   * @param filter - The filter predicate. If unspecified, then all documents in the collection will match the predicate
+   */
+  find(): FindCursor<WithId<TSchema>>;
+  find(filter: Filter<TSchema>, options?: FindOptions): FindCursor<WithId<TSchema>>;
+  find<T extends Document>(filter: Filter<TSchema>, options?: FindOptions): FindCursor<T>;
+  find(filter: Filter<TSchema> = {}, options: FindOptions = {}): FindCursor<WithId<TSchema>> {
+    return new FindCursor<WithId<TSchema>>(
+      this.client,
+      this.s.namespace,
+      filter,
+      resolveOptions(this as TODO_NODE_3286, options)
+    );
+  }
+
+  /**
+   * Returns the options of the collection.
+   *
+   * @param options - Optional settings for the command
+   */
+  async options(options?: OperationOptions): Promise<Document> {
+    return await executeOperation(
+      this.client,
+      new OptionsOperation(this as TODO_NODE_3286, resolveOptions(this, options))
+    );
+  }
+
+  /**
+   * Returns if the collection is a capped collection
+   *
+   * @param options - Optional settings for the command
+   */
+  async isCapped(options?: OperationOptions): Promise<boolean> {
+    return await executeOperation(
+      this.client,
+      new IsCappedOperation(this as TODO_NODE_3286, resolveOptions(this, options))
+    );
+  }
+
+  /**
+   * Creates an index on the db and collection collection.
+   *
+   * @param indexSpec - The field name or index specification to create an index for
+   * @param options - Optional settings for the command
+   *
+   * @example
+   * ```ts
+   * const collection = client.db('foo').collection('bar');
+   *
+   * await collection.createIndex({ a: 1, b: -1 });
+   *
+   * // Alternate syntax for { c: 1, d: -1 } that ensures order of indexes
+   * await collection.createIndex([ [c, 1], [d, -1] ]);
+   *
+   * // Equivalent to { e: 1 }
+   * await collection.createIndex('e');
+   *
+   * // Equivalent to { f: 1, g: 1 }
+   * await collection.createIndex(['f', 'g'])
+   *
+   * // Equivalent to { h: 1, i: -1 }
+   * await collection.createIndex([ { h: 1 }, { i: -1 } ]);
+   *
+   * // Equivalent to { j: 1, k: -1, l: 2d }
+   * await collection.createIndex(['j', ['k', -1], { l: '2d' }])
+   * ```
+   */
+  async createIndex(
+    indexSpec: IndexSpecification,
+    options?: CreateIndexesOptions
+  ): Promise<string> {
+    const indexes = await executeOperation(
+      this.client,
+      CreateIndexesOperation.fromIndexSpecification(
+        this,
+        this.collectionName,
+        indexSpec,
+        resolveOptions(this, options)
+      )
+    );
+
+    return indexes[0];
+  }
+
+  /**
+   * Creates multiple indexes in the collection, this method is only supported for
+   * MongoDB 2.6 or higher. Earlier version of MongoDB will throw a command not supported
+   * error.
+   *
+   * **Note**: Unlike {@link Collection#createIndex| createIndex}, this function takes in raw index specifications.
+   * Index specifications are defined {@link https://www.mongodb.com/docs/manual/reference/command/createIndexes/| here}.
+   *
+   * @param indexSpecs - An array of index specifications to be created
+   * @param options - Optional settings for the command
+   *
+   * @example
+   * ```ts
+   * const collection = client.db('foo').collection('bar');
+   * await collection.createIndexes([
+   *   // Simple index on field fizz
+   *   {
+   *     key: { fizz: 1 },
+   *   }
+   *   // wildcard index
+   *   {
+   *     key: { '$**': 1 }
+   *   },
+   *   // named index on darmok and jalad
+   *   {
+   *     key: { darmok: 1, jalad: -1 }
+   *     name: 'tanagra'
+   *   }
+   * ]);
+   * ```
+   */
+  async createIndexes(
+    indexSpecs: IndexDescription[],
+    options?: CreateIndexesOptions
+  ): Promise<string[]> {
+    return await executeOperation(
+      this.client,
+      CreateIndexesOperation.fromIndexDescriptionArray(
+        this,
+        this.collectionName,
+        indexSpecs,
+        resolveOptions(this, { ...options, maxTimeMS: undefined })
+      )
+    );
+  }
+
+  /**
+   * Drops an index from this collection.
+   *
+   * @param indexName - Name of the index to drop.
+   * @param options - Optional settings for the command
+   */
+  async dropIndex(indexName: string, options?: DropIndexesOptions): Promise<Document> {
+    return await executeOperation(
+      this.client,
+      new DropIndexOperation(this as TODO_NODE_3286, indexName, {
+        ...resolveOptions(this, options),
+        readPreference: ReadPreference.primary
+      })
+    );
+  }
+
+  /**
+   * Drops all indexes from this collection.
+   *
+   * @param options - Optional settings for the command
+   */
+  async dropIndexes(options?: DropIndexesOptions): Promise<boolean> {
+    try {
+      await executeOperation(
+        this.client,
+        new DropIndexOperation(this as TODO_NODE_3286, '*', resolveOptions(this, options))
+      );
+      return true;
+    } catch (error) {
+      // TODO(NODE-6517): Driver should only filter for namespace not found error. Other errors should be thrown.
+      if (error instanceof MongoOperationTimeoutError) throw error;
+      return false;
+    }
+  }
+
+  /**
+   * Get the list of all indexes information for the collection.
+   *
+   * @param options - Optional settings for the command
+   */
+  listIndexes(options?: ListIndexesOptions): ListIndexesCursor {
+    return new ListIndexesCursor(this as TODO_NODE_3286, resolveOptions(this, options));
+  }
+
+  /**
+   * Checks if one or more indexes exist on the collection, fails on first non-existing index
+   *
+   * @param indexes - One or more index names to check.
+   * @param options - Optional settings for the command
+   */
+  async indexExists(indexes: string | string[], options?: ListIndexesOptions): Promise<boolean> {
+    const indexNames: string[] = Array.isArray(indexes) ? indexes : [indexes];
+    const allIndexes: Set<string> = new Set(
+      await this.listIndexes(options)
+        .map(({ name }) => name)
+        .toArray()
+    );
+    return indexNames.every(name => allIndexes.has(name));
+  }
+
+  /**
+   * Retrieves this collections index info.
+   *
+   * @param options - Optional settings for the command
+   */
+  indexInformation(
+    options: IndexInformationOptions & { full: true }
+  ): Promise<IndexDescriptionInfo[]>;
+  indexInformation(
+    options: IndexInformationOptions & { full?: false }
+  ): Promise<IndexDescriptionCompact>;
+  indexInformation(
+    options: IndexInformationOptions
+  ): Promise<IndexDescriptionCompact | IndexDescriptionInfo[]>;
+  indexInformation(): Promise<IndexDescriptionCompact>;
+  async indexInformation(
+    options?: IndexInformationOptions
+  ): Promise<IndexDescriptionCompact | IndexDescriptionInfo[]> {
+    return await this.indexes({
+      ...options,
+      full: options?.full ?? false
+    });
+  }
+
+  /**
+   * Gets an estimate of the count of documents in a collection using collection metadata.
+   * This will always run a count command on all server versions.
+   *
+   * due to an oversight in versions 5.0.0-5.0.8 of MongoDB, the count command,
+   * which estimatedDocumentCount uses in its implementation, was not included in v1 of
+   * the Stable API, and so users of the Stable API with estimatedDocumentCount are
+   * recommended to upgrade their server version to 5.0.9+ or set apiStrict: false to avoid
+   * encountering errors.
+   *
+   * @see {@link https://www.mongodb.com/docs/manual/reference/command/count/#behavior|Count: Behavior}
+   * @param options - Optional settings for the command
+   */
+  async estimatedDocumentCount(options?: EstimatedDocumentCountOptions): Promise<number> {
+    return await executeOperation(
+      this.client,
+      new EstimatedDocumentCountOperation(this as TODO_NODE_3286, resolveOptions(this, options))
+    );
+  }
+
+  /**
+   * Gets the number of documents matching the filter.
+   * For a fast count of the total documents in a collection see {@link Collection#estimatedDocumentCount| estimatedDocumentCount}.
+   *
+   * Due to countDocuments using the $match aggregation pipeline stage, certain query operators cannot be used in countDocuments. This includes the $where and $near query operators, among others. Details can be found in the documentation for the $match aggregation pipeline stage.
+   *
+   * **Note**: When migrating from {@link Collection#count| count} to {@link Collection#countDocuments| countDocuments}
+   * the following query operators must be replaced:
+   *
+   * | Operator | Replacement |
+   * | -------- | ----------- |
+   * | `$where`   | [`$expr`][1] |
+   * | `$near`    | [`$geoWithin`][2] with [`$center`][3] |
+   * | `$nearSphere` | [`$geoWithin`][2] with [`$centerSphere`][4] |
+   *
+   * [1]: https://www.mongodb.com/docs/manual/reference/operator/query/expr/
+   * [2]: https://www.mongodb.com/docs/manual/reference/operator/query/geoWithin/
+   * [3]: https://www.mongodb.com/docs/manual/reference/operator/query/center/#op._S_center
+   * [4]: https://www.mongodb.com/docs/manual/reference/operator/query/centerSphere/#op._S_centerSphere
+   *
+   * @param filter - The filter for the count
+   * @param options - Optional settings for the command
+   *
+   * @see https://www.mongodb.com/docs/manual/reference/operator/query/expr/
+   * @see https://www.mongodb.com/docs/manual/reference/operator/query/geoWithin/
+   * @see https://www.mongodb.com/docs/manual/reference/operator/query/center/#op._S_center
+   * @see https://www.mongodb.com/docs/manual/reference/operator/query/centerSphere/#op._S_centerSphere
+   */
+  async countDocuments(
+    filter: Filter<TSchema> = {},
+    options: CountDocumentsOptions = {}
+  ): Promise<number> {
+    const pipeline = [];
+    pipeline.push({ $match: filter });
+
+    if (typeof options.skip === 'number') {
+      pipeline.push({ $skip: options.skip });
+    }
+
+    if (typeof options.limit === 'number') {
+      pipeline.push({ $limit: options.limit });
+    }
+
+    pipeline.push({ $group: { _id: 1, n: { $sum: 1 } } });
+
+    const cursor = this.aggregate<{ n: number }>(pipeline, options);
+    const doc = await cursor.next();
+    await cursor.close();
+    return doc?.n ?? 0;
+  }
+
+  /**
+   * The distinct command returns a list of distinct values for the given key across a collection.
+   *
+   * @param key - Field of the document to find distinct values for
+   * @param filter - The filter for filtering the set of documents to which we apply the distinct filter.
+   * @param options - Optional settings for the command
+   */
+  distinct<Key extends keyof WithId<TSchema>>(
+    key: Key
+  ): Promise<Array<Flatten<WithId<TSchema>[Key]>>>;
+  distinct<Key extends keyof WithId<TSchema>>(
+    key: Key,
+    filter: Filter<TSchema>
+  ): Promise<Array<Flatten<WithId<TSchema>[Key]>>>;
+  distinct<Key extends keyof WithId<TSchema>>(
+    key: Key,
+    filter: Filter<TSchema>,
+    options: DistinctOptions
+  ): Promise<Array<Flatten<WithId<TSchema>[Key]>>>;
+
+  // Embedded documents overload
+  distinct(key: string): Promise<any[]>;
+  distinct(key: string, filter: Filter<TSchema>): Promise<any[]>;
+  distinct(key: string, filter: Filter<TSchema>, options: DistinctOptions): Promise<any[]>;
+
+  async distinct<Key extends keyof WithId<TSchema>>(
+    key: Key,
+    filter: Filter<TSchema> = {},
+    options: DistinctOptions = {}
+  ): Promise<any[]> {
+    return await executeOperation(
+      this.client,
+      new DistinctOperation(
+        this as TODO_NODE_3286,
+        key as TODO_NODE_3286,
+        filter,
+        resolveOptions(this, options)
+      )
+    );
+  }
+
+  /**
+   * Retrieve all the indexes on the collection.
+   *
+   * @param options - Optional settings for the command
+   */
+  indexes(options: IndexInformationOptions & { full?: true }): Promise<IndexDescriptionInfo[]>;
+  indexes(options: IndexInformationOptions & { full: false }): Promise<IndexDescriptionCompact>;
+  indexes(
+    options: IndexInformationOptions
+  ): Promise<IndexDescriptionCompact | IndexDescriptionInfo[]>;
+  indexes(options?: ListIndexesOptions): Promise<IndexDescriptionInfo[]>;
+  async indexes(
+    options?: IndexInformationOptions
+  ): Promise<IndexDescriptionCompact | IndexDescriptionInfo[]> {
+    const indexes: IndexDescriptionInfo[] = await this.listIndexes(options).toArray();
+    const full = options?.full ?? true;
+    if (full) {
+      return indexes;
+    }
+
+    const object: IndexDescriptionCompact = Object.fromEntries(
+      indexes.map(({ name, key }) => [name, Object.entries(key)])
+    );
+
+    return object;
+  }
+
+  /**
+   * Find a document and delete it in one atomic operation. Requires a write lock for the duration of the operation.
+   *
+   * @param filter - The filter used to select the document to remove
+   * @param options - Optional settings for the command
+   */
+  async findOneAndDelete(
+    filter: Filter<TSchema>,
+    options: FindOneAndDeleteOptions & { includeResultMetadata: true }
+  ): Promise<ModifyResult<TSchema>>;
+  async findOneAndDelete(
+    filter: Filter<TSchema>,
+    options: FindOneAndDeleteOptions & { includeResultMetadata: false }
+  ): Promise<WithId<TSchema> | null>;
+  async findOneAndDelete(
+    filter: Filter<TSchema>,
+    options: FindOneAndDeleteOptions
+  ): Promise<WithId<TSchema> | null>;
+  async findOneAndDelete(filter: Filter<TSchema>): Promise<WithId<TSchema> | null>;
+  async findOneAndDelete(
+    filter: Filter<TSchema>,
+    options?: FindOneAndDeleteOptions
+  ): Promise<WithId<TSchema> | ModifyResult<TSchema> | null> {
+    return await executeOperation(
+      this.client,
+      new FindOneAndDeleteOperation(
+        this as TODO_NODE_3286,
+        filter,
+        resolveOptions(this, options)
+      ) as TODO_NODE_3286
+    );
+  }
+
+  /**
+   * Find a document and replace it in one atomic operation. Requires a write lock for the duration of the operation.
+   *
+   * @param filter - The filter used to select the document to replace
+   * @param replacement - The Document that replaces the matching document
+   * @param options - Optional settings for the command
+   */
+  async findOneAndReplace(
+    filter: Filter<TSchema>,
+    replacement: WithoutId<TSchema>,
+    options: FindOneAndReplaceOptions & { includeResultMetadata: true }
+  ): Promise<ModifyResult<TSchema>>;
+  async findOneAndReplace(
+    filter: Filter<TSchema>,
+    replacement: WithoutId<TSchema>,
+    options: FindOneAndReplaceOptions & { includeResultMetadata: false }
+  ): Promise<WithId<TSchema> | null>;
+  async findOneAndReplace(
+    filter: Filter<TSchema>,
+    replacement: WithoutId<TSchema>,
+    options: FindOneAndReplaceOptions
+  ): Promise<WithId<TSchema> | null>;
+  async findOneAndReplace(
+    filter: Filter<TSchema>,
+    replacement: WithoutId<TSchema>
+  ): Promise<WithId<TSchema> | null>;
+  async findOneAndReplace(
+    filter: Filter<TSchema>,
+    replacement: WithoutId<TSchema>,
+    options?: FindOneAndReplaceOptions
+  ): Promise<WithId<TSchema> | ModifyResult<TSchema> | null> {
+    return await executeOperation(
+      this.client,
+      new FindOneAndReplaceOperation(
+        this as TODO_NODE_3286,
+        filter,
+        replacement,
+        resolveOptions(this, options)
+      ) as TODO_NODE_3286
+    );
+  }
+
+  /**
+   * Find a document and update it in one atomic operation. Requires a write lock for the duration of the operation.
+   *
+   * @param filter - The filter used to select the document to update
+   * @param update - Update operations to be performed on the document
+   * @param options - Optional settings for the command
+   */
+  async findOneAndUpdate(
+    filter: Filter<TSchema>,
+    update: UpdateFilter<TSchema>,
+    options: FindOneAndUpdateOptions & { includeResultMetadata: true }
+  ): Promise<ModifyResult<TSchema>>;
+  async findOneAndUpdate(
+    filter: Filter<TSchema>,
+    update: UpdateFilter<TSchema>,
+    options: FindOneAndUpdateOptions & { includeResultMetadata: false }
+  ): Promise<WithId<TSchema> | null>;
+  async findOneAndUpdate(
+    filter: Filter<TSchema>,
+    update: UpdateFilter<TSchema>,
+    options: FindOneAndUpdateOptions
+  ): Promise<WithId<TSchema> | null>;
+  async findOneAndUpdate(
+    filter: Filter<TSchema>,
+    update: UpdateFilter<TSchema>
+  ): Promise<WithId<TSchema> | null>;
+  async findOneAndUpdate(
+    filter: Filter<TSchema>,
+    update: UpdateFilter<TSchema>,
+    options?: FindOneAndUpdateOptions
+  ): Promise<WithId<TSchema> | ModifyResult<TSchema> | null> {
+    return await executeOperation(
+      this.client,
+      new FindOneAndUpdateOperation(
+        this as TODO_NODE_3286,
+        filter,
+        update,
+        resolveOptions(this, options)
+      ) as TODO_NODE_3286
+    );
+  }
+
+  /**
+   * Execute an aggregation framework pipeline against the collection, needs MongoDB \>= 2.2
+   *
+   * @param pipeline - An array of aggregation pipelines to execute
+   * @param options - Optional settings for the command
+   */
+  aggregate<T extends Document = Document>(
+    pipeline: Document[] = [],
+    options?: AggregateOptions
+  ): AggregationCursor<T> {
+    if (!Array.isArray(pipeline)) {
+      throw new MongoInvalidArgumentError(
+        'Argument "pipeline" must be an array of aggregation stages'
+      );
+    }
+
+    return new AggregationCursor(
+      this.client,
+      this.s.namespace,
+      pipeline,
+      resolveOptions(this, options)
+    );
+  }
+
+  /**
+   * Create a new Change Stream, watching for new changes (insertions, updates, replacements, deletions, and invalidations) in this collection.
+   *
+   * @remarks
+   * watch() accepts two generic arguments for distinct use cases:
+   * - The first is to override the schema that may be defined for this specific collection
+   * - The second is to override the shape of the change stream document entirely, if it is not provided the type will default to ChangeStreamDocument of the first argument
+   * @example
+   * By just providing the first argument I can type the change to be `ChangeStreamDocument<{ _id: number }>`
+   * ```ts
+   * collection.watch<{ _id: number }>()
+   *   .on('change', change => console.log(change._id.toFixed(4)));
+   * ```
+   *
+   * @example
+   * Passing a second argument provides a way to reflect the type changes caused by an advanced pipeline.
+   * Here, we are using a pipeline to have MongoDB filter for insert changes only and add a comment.
+   * No need start from scratch on the ChangeStreamInsertDocument type!
+   * By using an intersection we can save time and ensure defaults remain the same type!
+   * ```ts
+   * collection
+   *   .watch<Schema, ChangeStreamInsertDocument<Schema> & { comment: string }>([
+   *     { $addFields: { comment: 'big changes' } },
+   *     { $match: { operationType: 'insert' } }
+   *   ])
+   *   .on('change', change => {
+   *     change.comment.startsWith('big');
+   *     change.operationType === 'insert';
+   *     // No need to narrow in code because the generics did that for us!
+   *     expectType<Schema>(change.fullDocument);
+   *   });
+   * ```
+   *
+   * @remarks
+   * When `timeoutMS` is configured for a change stream, it will have different behaviour depending
+   * on whether the change stream is in iterator mode or emitter mode. In both cases, a change
+   * stream will time out if it does not receive a change event within `timeoutMS` of the last change
+   * event.
+   *
+   * Note that if a change stream is consistently timing out when watching a collection, database or
+   * client that is being changed, then this may be due to the server timing out before it can finish
+   * processing the existing oplog. To address this, restart the change stream with a higher
+   * `timeoutMS`.
+   *
+   * If the change stream times out the initial aggregate operation to establish the change stream on
+   * the server, then the client will close the change stream. If the getMore calls to the server
+   * time out, then the change stream will be left open, but will throw a MongoOperationTimeoutError
+   * when in iterator mode and emit an error event that returns a MongoOperationTimeoutError in
+   * emitter mode.
+   *
+   * To determine whether or not the change stream is still open following a timeout, check the
+   * {@link ChangeStream.closed} getter.
+   *
+   * @example
+   * In iterator mode, if a next() call throws a timeout error, it will attempt to resume the change stream.
+   * The next call can just be retried after this succeeds.
+   * ```ts
+   * const changeStream = collection.watch([], { timeoutMS: 100 });
+   * try {
+   *     await changeStream.next();
+   * } catch (e) {
+   *     if (e instanceof MongoOperationTimeoutError && !changeStream.closed) {
+   *       await changeStream.next();
+   *     }
+   *     throw e;
+   * }
+   * ```
+   *
+   * @example
+   * In emitter mode, if the change stream goes `timeoutMS` without emitting a change event, it will
+   * emit an error event that returns a MongoOperationTimeoutError, but will not close the change
+   * stream unless the resume attempt fails. There is no need to re-establish change listeners as
+   * this will automatically continue emitting change events once the resume attempt completes.
+   *
+   * ```ts
+   * const changeStream = collection.watch([], { timeoutMS: 100 });
+   * changeStream.on('change', console.log);
+   * changeStream.on('error', e => {
+   *     if (e instanceof MongoOperationTimeoutError && !changeStream.closed) {
+   *         // do nothing
+   *     } else {
+   *         changeStream.close();
+   *     }
+   * });
+   * ```
+   *
+   * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents. This allows for filtering (using $match) and manipulating the change stream documents.
+   * @param options - Optional settings for the command
+   * @typeParam TLocal - Type of the data being detected by the change stream
+   * @typeParam TChange - Type of the whole change stream document emitted
+   */
+  watch<TLocal extends Document = TSchema, TChange extends Document = ChangeStreamDocument<TLocal>>(
+    pipeline: Document[] = [],
+    options: ChangeStreamOptions = {}
+  ): ChangeStream<TLocal, TChange> {
+    // Allow optionally not specifying a pipeline
+    if (!Array.isArray(pipeline)) {
+      options = pipeline;
+      pipeline = [];
+    }
+
+    return new ChangeStream<TLocal, TChange>(this, pipeline, resolveOptions(this, options));
+  }
+
+  /**
+   * Initiate an Out of order batch write operation. All operations will be buffered into insert/update/remove commands executed out of order.
+   *
+   * @throws MongoNotConnectedError
+   * @remarks
+   * **NOTE:** MongoClient must be connected prior to calling this method due to a known limitation in this legacy implementation.
+   * However, `collection.bulkWrite()` provides an equivalent API that does not require prior connecting.
+   */
+  initializeUnorderedBulkOp(options?: BulkWriteOptions): UnorderedBulkOperation {
+    return new UnorderedBulkOperation(this as TODO_NODE_3286, resolveOptions(this, options));
+  }
+
+  /**
+   * Initiate an In order bulk write operation. Operations will be serially executed in the order they are added, creating a new operation for each switch in types.
+   *
+   * @throws MongoNotConnectedError
+   * @remarks
+   * **NOTE:** MongoClient must be connected prior to calling this method due to a known limitation in this legacy implementation.
+   * However, `collection.bulkWrite()` provides an equivalent API that does not require prior connecting.
+   */
+  initializeOrderedBulkOp(options?: BulkWriteOptions): OrderedBulkOperation {
+    return new OrderedBulkOperation(this as TODO_NODE_3286, resolveOptions(this, options));
+  }
+
+  /**
+   * An estimated count of matching documents in the db to a filter.
+   *
+   * **NOTE:** This method has been deprecated, since it does not provide an accurate count of the documents
+   * in a collection. To obtain an accurate count of documents in the collection, use {@link Collection#countDocuments| countDocuments}.
+   * To obtain an estimated count of all documents in the collection, use {@link Collection#estimatedDocumentCount| estimatedDocumentCount}.
+   *
+   * @deprecated use {@link Collection#countDocuments| countDocuments} or {@link Collection#estimatedDocumentCount| estimatedDocumentCount} instead
+   *
+   * @param filter - The filter for the count.
+   * @param options - Optional settings for the command
+   */
+  async count(filter: Filter<TSchema> = {}, options: CountOptions = {}): Promise<number> {
+    return await executeOperation(
+      this.client,
+      new CountOperation(this.fullNamespace, filter, resolveOptions(this, options))
+    );
+  }
+
+  /**
+   * Returns all search indexes for the current collection.
+   *
+   * @param options - The options for the list indexes operation.
+   *
+   * @remarks Only available when used against a 7.0+ Atlas cluster.
+   */
+  listSearchIndexes(options?: ListSearchIndexesOptions): ListSearchIndexesCursor;
+  /**
+   * Returns all search indexes for the current collection.
+   *
+   * @param name - The name of the index to search for.  Only indexes with matching index names will be returned.
+   * @param options - The options for the list indexes operation.
+   *
+   * @remarks Only available when used against a 7.0+ Atlas cluster.
+   */
+  listSearchIndexes(name: string, options?: ListSearchIndexesOptions): ListSearchIndexesCursor;
+  listSearchIndexes(
+    indexNameOrOptions?: string | ListSearchIndexesOptions,
+    options?: ListSearchIndexesOptions
+  ): ListSearchIndexesCursor {
+    options =
+      typeof indexNameOrOptions === 'object' ? indexNameOrOptions : options == null ? {} : options;
+
+    const indexName =
+      indexNameOrOptions == null
+        ? null
+        : typeof indexNameOrOptions === 'object'
+          ? null
+          : indexNameOrOptions;
+
+    return new ListSearchIndexesCursor(this as TODO_NODE_3286, indexName, options);
+  }
+
+  /**
+   * Creates a single search index for the collection.
+   *
+   * @param description - The index description for the new search index.
+   * @returns A promise that resolves to the name of the new search index.
+   *
+   * @remarks Only available when used against a 7.0+ Atlas cluster.
+   */
+  async createSearchIndex(description: SearchIndexDescription): Promise<string> {
+    const [index] = await this.createSearchIndexes([description]);
+    return index;
+  }
+
+  /**
+   * Creates multiple search indexes for the current collection.
+   *
+   * @param descriptions - An array of `SearchIndexDescription`s for the new search indexes.
+   * @returns A promise that resolves to an array of the newly created search index names.
+   *
+   * @remarks Only available when used against a 7.0+ Atlas cluster.
+   * @returns
+   */
+  async createSearchIndexes(descriptions: SearchIndexDescription[]): Promise<string[]> {
+    return await executeOperation(
+      this.client,
+      new CreateSearchIndexesOperation(this as TODO_NODE_3286, descriptions)
+    );
+  }
+
+  /**
+   * Deletes a search index by index name.
+   *
+   * @param name - The name of the search index to be deleted.
+   *
+   * @remarks Only available when used against a 7.0+ Atlas cluster.
+   */
+  async dropSearchIndex(name: string): Promise<void> {
+    return await executeOperation(
+      this.client,
+      new DropSearchIndexOperation(this as TODO_NODE_3286, name)
+    );
+  }
+
+  /**
+   * Updates a search index by replacing the existing index definition with the provided definition.
+   *
+   * @param name - The name of the search index to update.
+   * @param definition - The new search index definition.
+   *
+   * @remarks Only available when used against a 7.0+ Atlas cluster.
+   */
+  async updateSearchIndex(name: string, definition: Document): Promise<void> {
+    return await executeOperation(
+      this.client,
+      new UpdateSearchIndexOperation(this as TODO_NODE_3286, name, definition)
+    );
+  }
+}
diff --git a/backend/node_modules/mongodb/src/connection_string.ts b/backend/node_modules/mongodb/src/connection_string.ts
new file mode 100644
index 0000000..ce20b9e
--- /dev/null
+++ b/backend/node_modules/mongodb/src/connection_string.ts
@@ -0,0 +1,1337 @@
+import * as dns from 'dns';
+import ConnectionString from 'mongodb-connection-string-url';
+import { URLSearchParams } from 'url';
+
+import type { Document } from './bson';
+import { MongoCredentials } from './cmap/auth/mongo_credentials';
+import { AUTH_MECHS_AUTH_SRC_EXTERNAL, AuthMechanism } from './cmap/auth/providers';
+import { addContainerMetadata, makeClientMetadata } from './cmap/handshake/client_metadata';
+import { Compressor, type CompressorName } from './cmap/wire_protocol/compression';
+import { Encrypter } from './encrypter';
+import {
+  MongoAPIError,
+  MongoInvalidArgumentError,
+  MongoMissingCredentialsError,
+  MongoParseError
+} from './error';
+import {
+  MongoClient,
+  type MongoClientOptions,
+  type MongoOptions,
+  type PkFactory,
+  type ServerApi,
+  ServerApiVersion
+} from './mongo_client';
+import {
+  MongoLoggableComponent,
+  MongoLogger,
+  type MongoLoggerEnvOptions,
+  type MongoLoggerMongoClientOptions,
+  SeverityLevel
+} from './mongo_logger';
+import { ReadConcern, type ReadConcernLevel } from './read_concern';
+import { ReadPreference, type ReadPreferenceMode } from './read_preference';
+import { ServerMonitoringMode } from './sdam/monitor';
+import type { TagSet } from './sdam/server_description';
+import {
+  checkParentDomainMatch,
+  DEFAULT_PK_FACTORY,
+  emitWarning,
+  HostAddress,
+  isRecord,
+  parseInteger,
+  setDifference,
+  squashError
+} from './utils';
+import { type W, WriteConcern } from './write_concern';
+
+const VALID_TXT_RECORDS = ['authSource', 'replicaSet', 'loadBalanced'];
+
+const LB_SINGLE_HOST_ERROR = 'loadBalanced option only supported with a single host in the URI';
+const LB_REPLICA_SET_ERROR = 'loadBalanced option not supported with a replicaSet option';
+const LB_DIRECT_CONNECTION_ERROR =
+  'loadBalanced option not supported when directConnection is provided';
+
+/**
+ * Lookup a `mongodb+srv` connection string, combine the parts and reparse it as a normal
+ * connection string.
+ *
+ * @param uri - The connection string to parse
+ * @param options - Optional user provided connection string options
+ */
+export async function resolveSRVRecord(options: MongoOptions): Promise<HostAddress[]> {
+  if (typeof options.srvHost !== 'string') {
+    throw new MongoAPIError('Option "srvHost" must not be empty');
+  }
+
+  // Asynchronously start TXT resolution so that we do not have to wait until
+  // the SRV record is resolved before starting a second DNS query.
+  const lookupAddress = options.srvHost;
+  const txtResolutionPromise = dns.promises.resolveTxt(lookupAddress);
+
+  txtResolutionPromise.then(undefined, squashError); // rejections will be handled later
+
+  // Resolve the SRV record and use the result as the list of hosts to connect to.
+  const addresses = await dns.promises.resolveSrv(
+    `_${options.srvServiceName}._tcp.${lookupAddress}`
+  );
+
+  if (addresses.length === 0) {
+    throw new MongoAPIError('No addresses found at host');
+  }
+
+  for (const { name } of addresses) {
+    checkParentDomainMatch(name, lookupAddress);
+  }
+
+  const hostAddresses = addresses.map(r => HostAddress.fromString(`${r.name}:${r.port ?? 27017}`));
+
+  validateLoadBalancedOptions(hostAddresses, options, true);
+
+  // Use the result of resolving the TXT record and add options from there if they exist.
+  let record;
+  try {
+    record = await txtResolutionPromise;
+  } catch (error) {
+    if (error.code !== 'ENODATA' && error.code !== 'ENOTFOUND') {
+      throw error;
+    }
+    return hostAddresses;
+  }
+
+  if (record.length > 1) {
+    throw new MongoParseError('Multiple text records not allowed');
+  }
+
+  const txtRecordOptions = new URLSearchParams(record[0].join(''));
+  const txtRecordOptionKeys = [...txtRecordOptions.keys()];
+  if (txtRecordOptionKeys.some(key => !VALID_TXT_RECORDS.includes(key))) {
+    throw new MongoParseError(`Text record may only set any of: ${VALID_TXT_RECORDS.join(', ')}`);
+  }
+
+  if (VALID_TXT_RECORDS.some(option => txtRecordOptions.get(option) === '')) {
+    throw new MongoParseError('Cannot have empty URI params in DNS TXT Record');
+  }
+
+  const source = txtRecordOptions.get('authSource') ?? undefined;
+  const replicaSet = txtRecordOptions.get('replicaSet') ?? undefined;
+  const loadBalanced = txtRecordOptions.get('loadBalanced') ?? undefined;
+
+  if (
+    !options.userSpecifiedAuthSource &&
+    source &&
+    options.credentials &&
+    !AUTH_MECHS_AUTH_SRC_EXTERNAL.has(options.credentials.mechanism)
+  ) {
+    options.credentials = MongoCredentials.merge(options.credentials, { source });
+  }
+
+  if (!options.userSpecifiedReplicaSet && replicaSet) {
+    options.replicaSet = replicaSet;
+  }
+
+  if (loadBalanced === 'true') {
+    options.loadBalanced = true;
+  }
+
+  if (options.replicaSet && options.srvMaxHosts > 0) {
+    throw new MongoParseError('Cannot combine replicaSet option with srvMaxHosts');
+  }
+
+  validateLoadBalancedOptions(hostAddresses, options, true);
+
+  return hostAddresses;
+}
+
+/**
+ * Checks if TLS options are valid
+ *
+ * @param allOptions - All options provided by user or included in default options map
+ * @throws MongoAPIError if TLS options are invalid
+ */
+function checkTLSOptions(allOptions: CaseInsensitiveMap): void {
+  if (!allOptions) return;
+  const check = (a: string, b: string) => {
+    if (allOptions.has(a) && allOptions.has(b)) {
+      throw new MongoAPIError(`The '${a}' option cannot be used with the '${b}' option`);
+    }
+  };
+  check('tlsInsecure', 'tlsAllowInvalidCertificates');
+  check('tlsInsecure', 'tlsAllowInvalidHostnames');
+  check('tlsInsecure', 'tlsDisableCertificateRevocationCheck');
+  check('tlsInsecure', 'tlsDisableOCSPEndpointCheck');
+  check('tlsAllowInvalidCertificates', 'tlsDisableCertificateRevocationCheck');
+  check('tlsAllowInvalidCertificates', 'tlsDisableOCSPEndpointCheck');
+  check('tlsDisableCertificateRevocationCheck', 'tlsDisableOCSPEndpointCheck');
+}
+function getBoolean(name: string, value: unknown): boolean {
+  if (typeof value === 'boolean') return value;
+  switch (value) {
+    case 'true':
+      return true;
+    case 'false':
+      return false;
+    default:
+      throw new MongoParseError(`${name} must be either "true" or "false"`);
+  }
+}
+
+function getIntFromOptions(name: string, value: unknown): number {
+  const parsedInt = parseInteger(value);
+  if (parsedInt != null) {
+    return parsedInt;
+  }
+  throw new MongoParseError(`Expected ${name} to be stringified int value, got: ${value}`);
+}
+
+function getUIntFromOptions(name: string, value: unknown): number {
+  const parsedValue = getIntFromOptions(name, value);
+  if (parsedValue < 0) {
+    throw new MongoParseError(`${name} can only be a positive int value, got: ${value}`);
+  }
+  return parsedValue;
+}
+
+function* entriesFromString(value: string): Generator<[string, string]> {
+  if (value === '') {
+    return;
+  }
+  const keyValuePairs = value.split(',');
+  for (const keyValue of keyValuePairs) {
+    const [key, value] = keyValue.split(/:(.*)/);
+    if (value == null) {
+      throw new MongoParseError('Cannot have undefined values in key value pairs');
+    }
+
+    yield [key, value];
+  }
+}
+
+class CaseInsensitiveMap<Value = any> extends Map<string, Value> {
+  constructor(entries: Array<[string, any]> = []) {
+    super(entries.map(([k, v]) => [k.toLowerCase(), v]));
+  }
+  override has(k: string) {
+    return super.has(k.toLowerCase());
+  }
+  override get(k: string) {
+    return super.get(k.toLowerCase());
+  }
+  override set(k: string, v: any) {
+    return super.set(k.toLowerCase(), v);
+  }
+  override delete(k: string): boolean {
+    return super.delete(k.toLowerCase());
+  }
+}
+
+export function parseOptions(
+  uri: string,
+  mongoClient: MongoClient | MongoClientOptions | undefined = undefined,
+  options: MongoClientOptions = {}
+): MongoOptions {
+  if (mongoClient != null && !(mongoClient instanceof MongoClient)) {
+    options = mongoClient;
+    mongoClient = undefined;
+  }
+
+  // validate BSONOptions
+  if (options.useBigInt64 && typeof options.promoteLongs === 'boolean' && !options.promoteLongs) {
+    throw new MongoAPIError('Must request either bigint or Long for int64 deserialization');
+  }
+
+  if (options.useBigInt64 && typeof options.promoteValues === 'boolean' && !options.promoteValues) {
+    throw new MongoAPIError('Must request either bigint or Long for int64 deserialization');
+  }
+
+  const url = new ConnectionString(uri);
+  const { hosts, isSRV } = url;
+
+  const mongoOptions = Object.create(null);
+
+  // Feature flags
+  for (const flag of Object.getOwnPropertySymbols(options)) {
+    if (FEATURE_FLAGS.has(flag)) {
+      mongoOptions[flag] = options[flag];
+    }
+  }
+
+  mongoOptions.hosts = isSRV ? [] : hosts.map(HostAddress.fromString);
+
+  const urlOptions = new CaseInsensitiveMap<unknown[]>();
+
+  if (url.pathname !== '/' && url.pathname !== '') {
+    const dbName = decodeURIComponent(
+      url.pathname[0] === '/' ? url.pathname.slice(1) : url.pathname
+    );
+    if (dbName) {
+      urlOptions.set('dbName', [dbName]);
+    }
+  }
+
+  if (url.username !== '') {
+    const auth: Document = {
+      username: decodeURIComponent(url.username)
+    };
+
+    if (typeof url.password === 'string') {
+      auth.password = decodeURIComponent(url.password);
+    }
+
+    urlOptions.set('auth', [auth]);
+  }
+
+  for (const key of url.searchParams.keys()) {
+    const values = url.searchParams.getAll(key);
+
+    const isReadPreferenceTags = /readPreferenceTags/i.test(key);
+
+    if (!isReadPreferenceTags && values.length > 1) {
+      throw new MongoInvalidArgumentError(
+        `URI option "${key}" cannot appear more than once in the connection string`
+      );
+    }
+
+    if (!isReadPreferenceTags && values.includes('')) {
+      throw new MongoAPIError(`URI option "${key}" cannot be specified with no value`);
+    }
+
+    if (!urlOptions.has(key)) {
+      urlOptions.set(key, values);
+    }
+  }
+
+  const objectOptions = new CaseInsensitiveMap<unknown>(
+    Object.entries(options).filter(([, v]) => v != null)
+  );
+
+  // Validate options that can only be provided by one of uri or object
+
+  if (urlOptions.has('serverApi')) {
+    throw new MongoParseError(
+      'URI cannot contain `serverApi`, it can only be passed to the client'
+    );
+  }
+
+  const uriMechanismProperties = urlOptions.get('authMechanismProperties');
+  if (uriMechanismProperties) {
+    for (const property of uriMechanismProperties) {
+      if (/(^|,)ALLOWED_HOSTS:/.test(property as string)) {
+        throw new MongoParseError(
+          'Auth mechanism property ALLOWED_HOSTS is not allowed in the connection string.'
+        );
+      }
+    }
+  }
+
+  if (objectOptions.has('loadBalanced')) {
+    throw new MongoParseError('loadBalanced is only a valid option in the URI');
+  }
+
+  // All option collection
+
+  const allProvidedOptions = new CaseInsensitiveMap<unknown[]>();
+
+  const allProvidedKeys = new Set<string>([...urlOptions.keys(), ...objectOptions.keys()]);
+
+  for (const key of allProvidedKeys) {
+    const values = [];
+    const objectOptionValue = objectOptions.get(key);
+    if (objectOptionValue != null) {
+      values.push(objectOptionValue);
+    }
+
+    const urlValues = urlOptions.get(key) ?? [];
+    values.push(...urlValues);
+    allProvidedOptions.set(key, values);
+  }
+
+  if (allProvidedOptions.has('tls') || allProvidedOptions.has('ssl')) {
+    const tlsAndSslOpts = (allProvidedOptions.get('tls') || [])
+      .concat(allProvidedOptions.get('ssl') || [])
+      .map(getBoolean.bind(null, 'tls/ssl'));
+    if (new Set(tlsAndSslOpts).size !== 1) {
+      throw new MongoParseError('All values of tls/ssl must be the same.');
+    }
+  }
+
+  checkTLSOptions(allProvidedOptions);
+
+  const unsupportedOptions = setDifference(
+    allProvidedKeys,
+    Array.from(Object.keys(OPTIONS)).map(s => s.toLowerCase())
+  );
+  if (unsupportedOptions.size !== 0) {
+    const optionWord = unsupportedOptions.size > 1 ? 'options' : 'option';
+    const isOrAre = unsupportedOptions.size > 1 ? 'are' : 'is';
+    throw new MongoParseError(
+      `${optionWord} ${Array.from(unsupportedOptions).join(', ')} ${isOrAre} not supported`
+    );
+  }
+
+  // Option parsing and setting
+
+  for (const [key, descriptor] of Object.entries(OPTIONS)) {
+    const values = allProvidedOptions.get(key);
+    if (!values || values.length === 0) {
+      if (DEFAULT_OPTIONS.has(key)) {
+        setOption(mongoOptions, key, descriptor, [DEFAULT_OPTIONS.get(key)]);
+      }
+    } else {
+      const { deprecated } = descriptor;
+      if (deprecated) {
+        const deprecatedMsg = typeof deprecated === 'string' ? `: ${deprecated}` : '';
+        emitWarning(`${key} is a deprecated option${deprecatedMsg}`);
+      }
+
+      setOption(mongoOptions, key, descriptor, values);
+    }
+  }
+
+  if (mongoOptions.credentials) {
+    const isGssapi = mongoOptions.credentials.mechanism === AuthMechanism.MONGODB_GSSAPI;
+    const isX509 = mongoOptions.credentials.mechanism === AuthMechanism.MONGODB_X509;
+    const isAws = mongoOptions.credentials.mechanism === AuthMechanism.MONGODB_AWS;
+    const isOidc = mongoOptions.credentials.mechanism === AuthMechanism.MONGODB_OIDC;
+    if (
+      (isGssapi || isX509) &&
+      allProvidedOptions.has('authSource') &&
+      mongoOptions.credentials.source !== '$external'
+    ) {
+      // If authSource was explicitly given and its incorrect, we error
+      throw new MongoParseError(
+        `authMechanism ${mongoOptions.credentials.mechanism} requires an authSource of '$external'`
+      );
+    }
+
+    if (
+      !(isGssapi || isX509 || isAws || isOidc) &&
+      mongoOptions.dbName &&
+      !allProvidedOptions.has('authSource')
+    ) {
+      // inherit the dbName unless GSSAPI or X509, then silently ignore dbName
+      // and there was no specific authSource given
+      mongoOptions.credentials = MongoCredentials.merge(mongoOptions.credentials, {
+        source: mongoOptions.dbName
+      });
+    }
+
+    if (isAws && mongoOptions.credentials.username && !mongoOptions.credentials.password) {
+      throw new MongoMissingCredentialsError(
+        `When using ${mongoOptions.credentials.mechanism} password must be set when a username is specified`
+      );
+    }
+
+    mongoOptions.credentials.validate();
+
+    // Check if the only auth related option provided was authSource, if so we can remove credentials
+    if (
+      mongoOptions.credentials.password === '' &&
+      mongoOptions.credentials.username === '' &&
+      mongoOptions.credentials.mechanism === AuthMechanism.MONGODB_DEFAULT &&
+      Object.keys(mongoOptions.credentials.mechanismProperties).length === 0
+    ) {
+      delete mongoOptions.credentials;
+    }
+  }
+
+  if (!mongoOptions.dbName) {
+    // dbName default is applied here because of the credential validation above
+    mongoOptions.dbName = 'test';
+  }
+
+  validateLoadBalancedOptions(hosts, mongoOptions, isSRV);
+
+  if (mongoClient && mongoOptions.autoEncryption) {
+    Encrypter.checkForMongoCrypt();
+    mongoOptions.encrypter = new Encrypter(mongoClient, uri, options);
+    mongoOptions.autoEncrypter = mongoOptions.encrypter.autoEncrypter;
+  }
+
+  // Potential SRV Overrides and SRV connection string validations
+
+  mongoOptions.userSpecifiedAuthSource =
+    objectOptions.has('authSource') || urlOptions.has('authSource');
+  mongoOptions.userSpecifiedReplicaSet =
+    objectOptions.has('replicaSet') || urlOptions.has('replicaSet');
+
+  if (isSRV) {
+    // SRV Record is resolved upon connecting
+    mongoOptions.srvHost = hosts[0];
+
+    if (mongoOptions.directConnection) {
+      throw new MongoAPIError('SRV URI does not support directConnection');
+    }
+
+    if (mongoOptions.srvMaxHosts > 0 && typeof mongoOptions.replicaSet === 'string') {
+      throw new MongoParseError('Cannot use srvMaxHosts option with replicaSet');
+    }
+
+    // SRV turns on TLS by default, but users can override and turn it off
+    const noUserSpecifiedTLS = !objectOptions.has('tls') && !urlOptions.has('tls');
+    const noUserSpecifiedSSL = !objectOptions.has('ssl') && !urlOptions.has('ssl');
+    if (noUserSpecifiedTLS && noUserSpecifiedSSL) {
+      mongoOptions.tls = true;
+    }
+  } else {
+    const userSpecifiedSrvOptions =
+      urlOptions.has('srvMaxHosts') ||
+      objectOptions.has('srvMaxHosts') ||
+      urlOptions.has('srvServiceName') ||
+      objectOptions.has('srvServiceName');
+
+    if (userSpecifiedSrvOptions) {
+      throw new MongoParseError(
+        'Cannot use srvMaxHosts or srvServiceName with a non-srv connection string'
+      );
+    }
+  }
+
+  if (mongoOptions.directConnection && mongoOptions.hosts.length !== 1) {
+    throw new MongoParseError('directConnection option requires exactly one host');
+  }
+
+  if (
+    !mongoOptions.proxyHost &&
+    (mongoOptions.proxyPort || mongoOptions.proxyUsername || mongoOptions.proxyPassword)
+  ) {
+    throw new MongoParseError('Must specify proxyHost if other proxy options are passed');
+  }
+
+  if (
+    (mongoOptions.proxyUsername && !mongoOptions.proxyPassword) ||
+    (!mongoOptions.proxyUsername && mongoOptions.proxyPassword)
+  ) {
+    throw new MongoParseError('Can only specify both of proxy username/password or neither');
+  }
+
+  const proxyOptions = ['proxyHost', 'proxyPort', 'proxyUsername', 'proxyPassword'].map(
+    key => urlOptions.get(key) ?? []
+  );
+
+  if (proxyOptions.some(options => options.length > 1)) {
+    throw new MongoParseError(
+      'Proxy options cannot be specified multiple times in the connection string'
+    );
+  }
+
+  const loggerFeatureFlag = Symbol.for('@@mdb.enableMongoLogger');
+  mongoOptions[loggerFeatureFlag] = mongoOptions[loggerFeatureFlag] ?? false;
+
+  let loggerEnvOptions: MongoLoggerEnvOptions = {};
+  let loggerClientOptions: MongoLoggerMongoClientOptions = {};
+  if (mongoOptions[loggerFeatureFlag]) {
+    loggerEnvOptions = {
+      MONGODB_LOG_COMMAND: process.env.MONGODB_LOG_COMMAND,
+      MONGODB_LOG_TOPOLOGY: process.env.MONGODB_LOG_TOPOLOGY,
+      MONGODB_LOG_SERVER_SELECTION: process.env.MONGODB_LOG_SERVER_SELECTION,
+      MONGODB_LOG_CONNECTION: process.env.MONGODB_LOG_CONNECTION,
+      MONGODB_LOG_CLIENT: process.env.MONGODB_LOG_CLIENT,
+      MONGODB_LOG_ALL: process.env.MONGODB_LOG_ALL,
+      MONGODB_LOG_MAX_DOCUMENT_LENGTH: process.env.MONGODB_LOG_MAX_DOCUMENT_LENGTH,
+      MONGODB_LOG_PATH: process.env.MONGODB_LOG_PATH,
+      ...mongoOptions[Symbol.for('@@mdb.internalLoggerConfig')]
+    };
+    loggerClientOptions = {
+      mongodbLogPath: mongoOptions.mongodbLogPath,
+      mongodbLogComponentSeverities: mongoOptions.mongodbLogComponentSeverities,
+      mongodbLogMaxDocumentLength: mongoOptions.mongodbLogMaxDocumentLength
+    };
+  }
+  mongoOptions.mongoLoggerOptions = MongoLogger.resolveOptions(
+    loggerEnvOptions,
+    loggerClientOptions
+  );
+
+  mongoOptions.metadata = makeClientMetadata(mongoOptions);
+
+  mongoOptions.extendedMetadata = addContainerMetadata(mongoOptions.metadata).then(
+    undefined,
+    squashError
+  ); // rejections will be handled later
+
+  return mongoOptions;
+}
+
+/**
+ * #### Throws if LB mode is true:
+ * - hosts contains more than one host
+ * - there is a replicaSet name set
+ * - directConnection is set
+ * - if srvMaxHosts is used when an srv connection string is passed in
+ *
+ * @throws MongoParseError
+ */
+function validateLoadBalancedOptions(
+  hosts: HostAddress[] | string[],
+  mongoOptions: MongoOptions,
+  isSrv: boolean
+): void {
+  if (mongoOptions.loadBalanced) {
+    if (hosts.length > 1) {
+      throw new MongoParseError(LB_SINGLE_HOST_ERROR);
+    }
+    if (mongoOptions.replicaSet) {
+      throw new MongoParseError(LB_REPLICA_SET_ERROR);
+    }
+    if (mongoOptions.directConnection) {
+      throw new MongoParseError(LB_DIRECT_CONNECTION_ERROR);
+    }
+
+    if (isSrv && mongoOptions.srvMaxHosts > 0) {
+      throw new MongoParseError('Cannot limit srv hosts with loadBalanced enabled');
+    }
+  }
+  return;
+}
+
+function setOption(
+  mongoOptions: any,
+  key: string,
+  descriptor: OptionDescriptor,
+  values: unknown[]
+) {
+  const { target, type, transform } = descriptor;
+  const name = target ?? key;
+
+  switch (type) {
+    case 'boolean':
+      mongoOptions[name] = getBoolean(name, values[0]);
+      break;
+    case 'int':
+      mongoOptions[name] = getIntFromOptions(name, values[0]);
+      break;
+    case 'uint':
+      mongoOptions[name] = getUIntFromOptions(name, values[0]);
+      break;
+    case 'string':
+      if (values[0] == null) {
+        break;
+      }
+      mongoOptions[name] = String(values[0]);
+      break;
+    case 'record':
+      if (!isRecord(values[0])) {
+        throw new MongoParseError(`${name} must be an object`);
+      }
+      mongoOptions[name] = values[0];
+      break;
+    case 'any':
+      mongoOptions[name] = values[0];
+      break;
+    default: {
+      if (!transform) {
+        throw new MongoParseError('Descriptors missing a type must define a transform');
+      }
+      const transformValue = transform({ name, options: mongoOptions, values });
+      mongoOptions[name] = transformValue;
+      break;
+    }
+  }
+}
+
+interface OptionDescriptor {
+  target?: string;
+  type?: 'boolean' | 'int' | 'uint' | 'record' | 'string' | 'any';
+  default?: any;
+
+  deprecated?: boolean | string;
+  /**
+   * @param name - the original option name
+   * @param options - the options so far for resolution
+   * @param values - the possible values in precedence order
+   */
+  transform?: (args: { name: string; options: MongoOptions; values: unknown[] }) => unknown;
+}
+
+export const OPTIONS = {
+  appName: {
+    type: 'string'
+  },
+  auth: {
+    target: 'credentials',
+    transform({ name, options, values: [value] }): MongoCredentials {
+      if (!isRecord(value, ['username', 'password'] as const)) {
+        throw new MongoParseError(
+          `${name} must be an object with 'username' and 'password' properties`
+        );
+      }
+      return MongoCredentials.merge(options.credentials, {
+        username: value.username,
+        password: value.password
+      });
+    }
+  },
+  authMechanism: {
+    target: 'credentials',
+    transform({ options, values: [value] }): MongoCredentials {
+      const mechanisms = Object.values(AuthMechanism);
+      const [mechanism] = mechanisms.filter(m => m.match(RegExp(String.raw`\b${value}\b`, 'i')));
+      if (!mechanism) {
+        throw new MongoParseError(`authMechanism one of ${mechanisms}, got ${value}`);
+      }
+      let source = options.credentials?.source;
+      if (
+        mechanism === AuthMechanism.MONGODB_PLAIN ||
+        AUTH_MECHS_AUTH_SRC_EXTERNAL.has(mechanism)
+      ) {
+        // some mechanisms have '$external' as the Auth Source
+        source = '$external';
+      }
+
+      let password = options.credentials?.password;
+      if (mechanism === AuthMechanism.MONGODB_X509 && password === '') {
+        password = undefined;
+      }
+      return MongoCredentials.merge(options.credentials, {
+        mechanism,
+        source,
+        password
+      });
+    }
+  },
+  // Note that if the authMechanismProperties contain a TOKEN_RESOURCE that has a
+  // comma in it, it MUST be supplied as a MongoClient option instead of in the
+  // connection string.
+  authMechanismProperties: {
+    target: 'credentials',
+    transform({ options, values }): MongoCredentials {
+      // We can have a combination of options passed in the URI and options passed
+      // as an object to the MongoClient. So we must transform the string options
+      // as well as merge them together with a potentially provided object.
+      let mechanismProperties = Object.create(null);
+
+      for (const optionValue of values) {
+        if (typeof optionValue === 'string') {
+          for (const [key, value] of entriesFromString(optionValue)) {
+            try {
+              mechanismProperties[key] = getBoolean(key, value);
+            } catch {
+              mechanismProperties[key] = value;
+            }
+          }
+        } else {
+          if (!isRecord(optionValue)) {
+            throw new MongoParseError('AuthMechanismProperties must be an object');
+          }
+          mechanismProperties = { ...optionValue };
+        }
+      }
+      return MongoCredentials.merge(options.credentials, {
+        mechanismProperties
+      });
+    }
+  },
+  authSource: {
+    target: 'credentials',
+    transform({ options, values: [value] }): MongoCredentials {
+      const source = String(value);
+      return MongoCredentials.merge(options.credentials, { source });
+    }
+  },
+  autoEncryption: {
+    type: 'record'
+  },
+  autoSelectFamily: {
+    type: 'boolean',
+    default: true
+  },
+  autoSelectFamilyAttemptTimeout: {
+    type: 'uint'
+  },
+  bsonRegExp: {
+    type: 'boolean'
+  },
+  serverApi: {
+    target: 'serverApi',
+    transform({ values: [version] }): ServerApi {
+      const serverApiToValidate =
+        typeof version === 'string' ? ({ version } as ServerApi) : (version as ServerApi);
+      const versionToValidate = serverApiToValidate && serverApiToValidate.version;
+      if (!versionToValidate) {
+        throw new MongoParseError(
+          `Invalid \`serverApi\` property; must specify a version from the following enum: ["${Object.values(
+            ServerApiVersion
+          ).join('", "')}"]`
+        );
+      }
+      if (!Object.values(ServerApiVersion).some(v => v === versionToValidate)) {
+        throw new MongoParseError(
+          `Invalid server API version=${versionToValidate}; must be in the following enum: ["${Object.values(
+            ServerApiVersion
+          ).join('", "')}"]`
+        );
+      }
+      return serverApiToValidate;
+    }
+  },
+  checkKeys: {
+    type: 'boolean'
+  },
+  compressors: {
+    default: 'none',
+    target: 'compressors',
+    transform({ values }) {
+      const compressionList = new Set();
+      for (const compVal of values as (CompressorName[] | string)[]) {
+        const compValArray = typeof compVal === 'string' ? compVal.split(',') : compVal;
+        if (!Array.isArray(compValArray)) {
+          throw new MongoInvalidArgumentError(
+            'compressors must be an array or a comma-delimited list of strings'
+          );
+        }
+        for (const c of compValArray) {
+          if (Object.keys(Compressor).includes(String(c))) {
+            compressionList.add(String(c));
+          } else {
+            throw new MongoInvalidArgumentError(
+              `${c} is not a valid compression mechanism. Must be one of: ${Object.keys(
+                Compressor
+              )}.`
+            );
+          }
+        }
+      }
+      return [...compressionList];
+    }
+  },
+  connectTimeoutMS: {
+    default: 30000,
+    type: 'uint'
+  },
+  dbName: {
+    type: 'string'
+  },
+  directConnection: {
+    default: false,
+    type: 'boolean'
+  },
+  driverInfo: {
+    default: {},
+    type: 'record'
+  },
+  enableUtf8Validation: { type: 'boolean', default: true },
+  family: {
+    transform({ name, values: [value] }): 4 | 6 {
+      const transformValue = getIntFromOptions(name, value);
+      if (transformValue === 4 || transformValue === 6) {
+        return transformValue;
+      }
+      throw new MongoParseError(`Option 'family' must be 4 or 6 got ${transformValue}.`);
+    }
+  },
+  fieldsAsRaw: {
+    type: 'record'
+  },
+  forceServerObjectId: {
+    default: false,
+    type: 'boolean'
+  },
+  fsync: {
+    deprecated: 'Please use journal instead',
+    target: 'writeConcern',
+    transform({ name, options, values: [value] }): WriteConcern {
+      const wc = WriteConcern.fromOptions({
+        writeConcern: {
+          ...options.writeConcern,
+          fsync: getBoolean(name, value)
+        }
+      });
+      if (!wc) throw new MongoParseError(`Unable to make a writeConcern from fsync=${value}`);
+      return wc;
+    }
+  } as OptionDescriptor,
+  heartbeatFrequencyMS: {
+    default: 10000,
+    type: 'uint'
+  },
+  ignoreUndefined: {
+    type: 'boolean'
+  },
+  j: {
+    deprecated: 'Please use journal instead',
+    target: 'writeConcern',
+    transform({ name, options, values: [value] }): WriteConcern {
+      const wc = WriteConcern.fromOptions({
+        writeConcern: {
+          ...options.writeConcern,
+          journal: getBoolean(name, value)
+        }
+      });
+      if (!wc) throw new MongoParseError(`Unable to make a writeConcern from journal=${value}`);
+      return wc;
+    }
+  } as OptionDescriptor,
+  journal: {
+    target: 'writeConcern',
+    transform({ name, options, values: [value] }): WriteConcern {
+      const wc = WriteConcern.fromOptions({
+        writeConcern: {
+          ...options.writeConcern,
+          journal: getBoolean(name, value)
+        }
+      });
+      if (!wc) throw new MongoParseError(`Unable to make a writeConcern from journal=${value}`);
+      return wc;
+    }
+  },
+  loadBalanced: {
+    default: false,
+    type: 'boolean'
+  },
+  localThresholdMS: {
+    default: 15,
+    type: 'uint'
+  },
+  maxConnecting: {
+    default: 2,
+    transform({ name, values: [value] }): number {
+      const maxConnecting = getUIntFromOptions(name, value);
+      if (maxConnecting === 0) {
+        throw new MongoInvalidArgumentError('maxConnecting must be > 0 if specified');
+      }
+      return maxConnecting;
+    }
+  },
+  maxIdleTimeMS: {
+    default: 0,
+    type: 'uint'
+  },
+  maxPoolSize: {
+    default: 100,
+    type: 'uint'
+  },
+  maxStalenessSeconds: {
+    target: 'readPreference',
+    transform({ name, options, values: [value] }) {
+      const maxStalenessSeconds = getUIntFromOptions(name, value);
+      if (options.readPreference) {
+        return ReadPreference.fromOptions({
+          readPreference: { ...options.readPreference, maxStalenessSeconds }
+        });
+      } else {
+        return new ReadPreference('secondary', undefined, { maxStalenessSeconds });
+      }
+    }
+  },
+  minInternalBufferSize: {
+    type: 'uint'
+  },
+  minPoolSize: {
+    default: 0,
+    type: 'uint'
+  },
+  minHeartbeatFrequencyMS: {
+    default: 500,
+    type: 'uint'
+  },
+  monitorCommands: {
+    default: false,
+    type: 'boolean'
+  },
+  name: {
+    target: 'driverInfo',
+    transform({ values: [value], options }) {
+      return { ...options.driverInfo, name: String(value) };
+    }
+  } as OptionDescriptor,
+  noDelay: {
+    default: true,
+    type: 'boolean'
+  },
+  pkFactory: {
+    default: DEFAULT_PK_FACTORY,
+    transform({ values: [value] }): PkFactory {
+      if (isRecord(value, ['createPk'] as const) && typeof value.createPk === 'function') {
+        return value as PkFactory;
+      }
+      throw new MongoParseError(
+        `Option pkFactory must be an object with a createPk function, got ${value}`
+      );
+    }
+  },
+  promoteBuffers: {
+    type: 'boolean'
+  },
+  promoteLongs: {
+    type: 'boolean'
+  },
+  promoteValues: {
+    type: 'boolean'
+  },
+  useBigInt64: {
+    type: 'boolean'
+  },
+  proxyHost: {
+    type: 'string'
+  },
+  proxyPassword: {
+    type: 'string'
+  },
+  proxyPort: {
+    type: 'uint'
+  },
+  proxyUsername: {
+    type: 'string'
+  },
+  raw: {
+    default: false,
+    type: 'boolean'
+  },
+  readConcern: {
+    transform({ values: [value], options }) {
+      if (value instanceof ReadConcern || isRecord(value, ['level'] as const)) {
+        return ReadConcern.fromOptions({ ...options.readConcern, ...value } as any);
+      }
+      throw new MongoParseError(`ReadConcern must be an object, got ${JSON.stringify(value)}`);
+    }
+  },
+  readConcernLevel: {
+    target: 'readConcern',
+    transform({ values: [level], options }) {
+      return ReadConcern.fromOptions({
+        ...options.readConcern,
+        level: level as ReadConcernLevel
+      });
+    }
+  },
+  readPreference: {
+    default: ReadPreference.primary,
+    transform({ values: [value], options }) {
+      if (value instanceof ReadPreference) {
+        return ReadPreference.fromOptions({
+          readPreference: { ...options.readPreference, ...value },
+          ...value
+        } as any);
+      }
+      if (isRecord(value, ['mode'] as const)) {
+        const rp = ReadPreference.fromOptions({
+          readPreference: { ...options.readPreference, ...value },
+          ...value
+        } as any);
+        if (rp) return rp;
+        else throw new MongoParseError(`Cannot make read preference from ${JSON.stringify(value)}`);
+      }
+      if (typeof value === 'string') {
+        const rpOpts = {
+          hedge: options.readPreference?.hedge,
+          maxStalenessSeconds: options.readPreference?.maxStalenessSeconds
+        };
+        return new ReadPreference(
+          value as ReadPreferenceMode,
+          options.readPreference?.tags,
+          rpOpts
+        );
+      }
+      throw new MongoParseError(`Unknown ReadPreference value: ${value}`);
+    }
+  },
+  readPreferenceTags: {
+    target: 'readPreference',
+    transform({
+      values,
+      options
+    }: {
+      values: Array<string | Record<string, string>[]>;
+      options: MongoClientOptions;
+    }) {
+      const tags: Array<string | Record<string, string>> = Array.isArray(values[0])
+        ? values[0]
+        : (values as Array<string>);
+      const readPreferenceTags = [];
+      for (const tag of tags) {
+        const readPreferenceTag: TagSet = Object.create(null);
+        if (typeof tag === 'string') {
+          for (const [k, v] of entriesFromString(tag)) {
+            readPreferenceTag[k] = v;
+          }
+        }
+        if (isRecord(tag)) {
+          for (const [k, v] of Object.entries(tag)) {
+            readPreferenceTag[k] = v;
+          }
+        }
+        readPreferenceTags.push(readPreferenceTag);
+      }
+      return ReadPreference.fromOptions({
+        readPreference: options.readPreference,
+        readPreferenceTags
+      });
+    }
+  },
+  replicaSet: {
+    type: 'string'
+  },
+  retryReads: {
+    default: true,
+    type: 'boolean'
+  },
+  retryWrites: {
+    default: true,
+    type: 'boolean'
+  },
+  serializeFunctions: {
+    type: 'boolean'
+  },
+  serverMonitoringMode: {
+    default: 'auto',
+    transform({ values: [value] }) {
+      if (!Object.values(ServerMonitoringMode).includes(value as any)) {
+        throw new MongoParseError(
+          'serverMonitoringMode must be one of `auto`, `poll`, or `stream`'
+        );
+      }
+      return value;
+    }
+  },
+  serverSelectionTimeoutMS: {
+    default: 30000,
+    type: 'uint'
+  },
+  servername: {
+    type: 'string'
+  },
+  socketTimeoutMS: {
+    // TODO(NODE-6491): deprecated: 'Please use timeoutMS instead',
+    default: 0,
+    type: 'uint'
+  },
+  srvMaxHosts: {
+    type: 'uint',
+    default: 0
+  },
+  srvServiceName: {
+    type: 'string',
+    default: 'mongodb'
+  },
+  ssl: {
+    target: 'tls',
+    type: 'boolean'
+  },
+  timeoutMS: {
+    type: 'uint'
+  },
+  tls: {
+    type: 'boolean'
+  },
+  tlsAllowInvalidCertificates: {
+    target: 'rejectUnauthorized',
+    transform({ name, values: [value] }) {
+      // allowInvalidCertificates is the inverse of rejectUnauthorized
+      return !getBoolean(name, value);
+    }
+  },
+  tlsAllowInvalidHostnames: {
+    target: 'checkServerIdentity',
+    transform({ name, values: [value] }) {
+      // tlsAllowInvalidHostnames means setting the checkServerIdentity function to a noop
+      return getBoolean(name, value) ? () => undefined : undefined;
+    }
+  },
+  tlsCAFile: {
+    type: 'string'
+  },
+  tlsCRLFile: {
+    type: 'string'
+  },
+  tlsCertificateKeyFile: {
+    type: 'string'
+  },
+  tlsCertificateKeyFilePassword: {
+    target: 'passphrase',
+    type: 'any'
+  },
+  tlsInsecure: {
+    transform({ name, options, values: [value] }) {
+      const tlsInsecure = getBoolean(name, value);
+      if (tlsInsecure) {
+        options.checkServerIdentity = () => undefined;
+        options.rejectUnauthorized = false;
+      } else {
+        options.checkServerIdentity = options.tlsAllowInvalidHostnames
+          ? () => undefined
+          : undefined;
+        options.rejectUnauthorized = options.tlsAllowInvalidCertificates ? false : true;
+      }
+      return tlsInsecure;
+    }
+  },
+  w: {
+    target: 'writeConcern',
+    transform({ values: [value], options }) {
+      return WriteConcern.fromOptions({ writeConcern: { ...options.writeConcern, w: value as W } });
+    }
+  },
+  waitQueueTimeoutMS: {
+    // TODO(NODE-6491): deprecated: 'Please use timeoutMS instead',
+    default: 0,
+    type: 'uint'
+  },
+  writeConcern: {
+    target: 'writeConcern',
+    transform({ values: [value], options }) {
+      if (isRecord(value) || value instanceof WriteConcern) {
+        return WriteConcern.fromOptions({
+          writeConcern: {
+            ...options.writeConcern,
+            ...value
+          }
+        });
+      } else if (value === 'majority' || typeof value === 'number') {
+        return WriteConcern.fromOptions({
+          writeConcern: {
+            ...options.writeConcern,
+            w: value
+          }
+        });
+      }
+
+      throw new MongoParseError(`Invalid WriteConcern cannot parse: ${JSON.stringify(value)}`);
+    }
+  },
+  wtimeout: {
+    deprecated: 'Please use wtimeoutMS instead',
+    target: 'writeConcern',
+    transform({ values: [value], options }) {
+      const wc = WriteConcern.fromOptions({
+        writeConcern: {
+          ...options.writeConcern,
+          wtimeout: getUIntFromOptions('wtimeout', value)
+        }
+      });
+      if (wc) return wc;
+      throw new MongoParseError(`Cannot make WriteConcern from wtimeout`);
+    }
+  } as OptionDescriptor,
+  wtimeoutMS: {
+    target: 'writeConcern',
+    transform({ values: [value], options }) {
+      const wc = WriteConcern.fromOptions({
+        writeConcern: {
+          ...options.writeConcern,
+          wtimeoutMS: getUIntFromOptions('wtimeoutMS', value)
+        }
+      });
+      if (wc) return wc;
+      throw new MongoParseError(`Cannot make WriteConcern from wtimeout`);
+    }
+  },
+  zlibCompressionLevel: {
+    default: 0,
+    type: 'int'
+  },
+  // Custom types for modifying core behavior
+  connectionType: { type: 'any' },
+  srvPoller: { type: 'any' },
+  // Accepted Node.js Options
+  allowPartialTrustChain: { type: 'any' },
+  minDHSize: { type: 'any' },
+  pskCallback: { type: 'any' },
+  secureContext: { type: 'any' },
+  enableTrace: { type: 'any' },
+  requestCert: { type: 'any' },
+  rejectUnauthorized: { type: 'any' },
+  checkServerIdentity: { type: 'any' },
+  ALPNProtocols: { type: 'any' },
+  SNICallback: { type: 'any' },
+  session: { type: 'any' },
+  requestOCSP: { type: 'any' },
+  localAddress: { type: 'any' },
+  localPort: { type: 'any' },
+  hints: { type: 'any' },
+  lookup: { type: 'any' },
+  ca: { type: 'any' },
+  cert: { type: 'any' },
+  ciphers: { type: 'any' },
+  crl: { type: 'any' },
+  ecdhCurve: { type: 'any' },
+  key: { type: 'any' },
+  passphrase: { type: 'any' },
+  pfx: { type: 'any' },
+  secureProtocol: { type: 'any' },
+  index: { type: 'any' },
+  // Legacy options from v3 era
+  useNewUrlParser: {
+    type: 'boolean',
+    deprecated:
+      'useNewUrlParser has no effect since Node.js Driver version 4.0.0 and will be removed in the next major version'
+  } as OptionDescriptor,
+  useUnifiedTopology: {
+    type: 'boolean',
+    deprecated:
+      'useUnifiedTopology has no effect since Node.js Driver version 4.0.0 and will be removed in the next major version'
+  } as OptionDescriptor,
+  // MongoLogger
+  /**
+   * @internal
+   * TODO: NODE-5671 - remove internal flag
+   */
+  mongodbLogPath: {
+    transform({ values: [value] }) {
+      if (
+        !(
+          (typeof value === 'string' && ['stderr', 'stdout'].includes(value)) ||
+          (value &&
+            typeof value === 'object' &&
+            'write' in value &&
+            typeof value.write === 'function')
+        )
+      ) {
+        throw new MongoAPIError(
+          `Option 'mongodbLogPath' must be of type 'stderr' | 'stdout' | MongoDBLogWritable`
+        );
+      }
+      return value;
+    }
+  },
+  /**
+   * @internal
+   * TODO: NODE-5671 - remove internal flag
+   */
+  mongodbLogComponentSeverities: {
+    transform({ values: [value] }) {
+      if (typeof value !== 'object' || !value) {
+        throw new MongoAPIError(`Option 'mongodbLogComponentSeverities' must be a non-null object`);
+      }
+      for (const [k, v] of Object.entries(value)) {
+        if (typeof v !== 'string' || typeof k !== 'string') {
+          throw new MongoAPIError(
+            `User input for option 'mongodbLogComponentSeverities' object cannot include a non-string key or value`
+          );
+        }
+        if (!Object.values(MongoLoggableComponent).some(val => val === k) && k !== 'default') {
+          throw new MongoAPIError(
+            `User input for option 'mongodbLogComponentSeverities' contains invalid key: ${k}`
+          );
+        }
+        if (!Object.values(SeverityLevel).some(val => val === v)) {
+          throw new MongoAPIError(
+            `Option 'mongodbLogComponentSeverities' does not support ${v} as a value for ${k}`
+          );
+        }
+      }
+      return value;
+    }
+  },
+  /**
+   * @internal
+   * TODO: NODE-5671 - remove internal flag
+   */
+  mongodbLogMaxDocumentLength: { type: 'uint' }
+} as Record<keyof MongoClientOptions, OptionDescriptor>;
+
+export const DEFAULT_OPTIONS = new CaseInsensitiveMap(
+  Object.entries(OPTIONS)
+    .filter(([, descriptor]) => descriptor.default != null)
+    .map(([k, d]) => [k, d.default])
+);
+
+/**
+ * Set of permitted feature flags
+ * @internal
+ */
+export const FEATURE_FLAGS = new Set([
+  Symbol.for('@@mdb.skipPingOnConnect'),
+  Symbol.for('@@mdb.enableMongoLogger'),
+  Symbol.for('@@mdb.internalLoggerConfig')
+]);
diff --git a/backend/node_modules/mongodb/src/constants.ts b/backend/node_modules/mongodb/src/constants.ts
new file mode 100644
index 0000000..623b6c9
--- /dev/null
+++ b/backend/node_modules/mongodb/src/constants.ts
@@ -0,0 +1,177 @@
+/* eslint-disable @typescript-eslint/no-unnecessary-type-assertion */
+export const SYSTEM_NAMESPACE_COLLECTION = 'system.namespaces';
+export const SYSTEM_INDEX_COLLECTION = 'system.indexes';
+export const SYSTEM_PROFILE_COLLECTION = 'system.profile';
+export const SYSTEM_USER_COLLECTION = 'system.users';
+export const SYSTEM_COMMAND_COLLECTION = '$cmd';
+export const SYSTEM_JS_COLLECTION = 'system.js';
+
+// events
+export const ERROR = 'error' as const;
+export const TIMEOUT = 'timeout' as const;
+export const CLOSE = 'close' as const;
+export const OPEN = 'open' as const;
+export const CONNECT = 'connect' as const;
+export const CLOSED = 'closed' as const;
+export const ENDED = 'ended' as const;
+export const MESSAGE = 'message' as const;
+export const PINNED = 'pinned' as const;
+export const UNPINNED = 'unpinned' as const;
+export const DESCRIPTION_RECEIVED = 'descriptionReceived';
+/** @internal */
+export const SERVER_OPENING = 'serverOpening' as const;
+/** @internal */
+export const SERVER_CLOSED = 'serverClosed' as const;
+/** @internal */
+export const SERVER_DESCRIPTION_CHANGED = 'serverDescriptionChanged' as const;
+/** @internal */
+export const TOPOLOGY_OPENING = 'topologyOpening' as const;
+/** @internal */
+export const TOPOLOGY_CLOSED = 'topologyClosed' as const;
+/** @internal */
+export const TOPOLOGY_DESCRIPTION_CHANGED = 'topologyDescriptionChanged' as const;
+/** @internal */
+export const SERVER_SELECTION_STARTED = 'serverSelectionStarted' as const;
+/** @internal */
+export const SERVER_SELECTION_FAILED = 'serverSelectionFailed' as const;
+/** @internal */
+export const SERVER_SELECTION_SUCCEEDED = 'serverSelectionSucceeded' as const;
+/** @internal */
+export const WAITING_FOR_SUITABLE_SERVER = 'waitingForSuitableServer' as const;
+/** @internal */
+export const CONNECTION_POOL_CREATED = 'connectionPoolCreated' as const;
+/** @internal */
+export const CONNECTION_POOL_CLOSED = 'connectionPoolClosed' as const;
+/** @internal */
+export const CONNECTION_POOL_CLEARED = 'connectionPoolCleared' as const;
+/** @internal */
+export const CONNECTION_POOL_READY = 'connectionPoolReady' as const;
+/** @internal */
+export const CONNECTION_CREATED = 'connectionCreated' as const;
+/** @internal */
+export const CONNECTION_READY = 'connectionReady' as const;
+/** @internal */
+export const CONNECTION_CLOSED = 'connectionClosed' as const;
+/** @internal */
+export const CONNECTION_CHECK_OUT_STARTED = 'connectionCheckOutStarted' as const;
+/** @internal */
+export const CONNECTION_CHECK_OUT_FAILED = 'connectionCheckOutFailed' as const;
+/** @internal */
+export const CONNECTION_CHECKED_OUT = 'connectionCheckedOut' as const;
+/** @internal */
+export const CONNECTION_CHECKED_IN = 'connectionCheckedIn' as const;
+export const CLUSTER_TIME_RECEIVED = 'clusterTimeReceived' as const;
+/** @internal */
+export const COMMAND_STARTED = 'commandStarted' as const;
+/** @internal */
+export const COMMAND_SUCCEEDED = 'commandSucceeded' as const;
+/** @internal */
+export const COMMAND_FAILED = 'commandFailed' as const;
+/** @internal */
+export const SERVER_HEARTBEAT_STARTED = 'serverHeartbeatStarted' as const;
+/** @internal */
+export const SERVER_HEARTBEAT_SUCCEEDED = 'serverHeartbeatSucceeded' as const;
+/** @internal */
+export const SERVER_HEARTBEAT_FAILED = 'serverHeartbeatFailed' as const;
+export const RESPONSE = 'response' as const;
+export const MORE = 'more' as const;
+export const INIT = 'init' as const;
+export const CHANGE = 'change' as const;
+export const END = 'end' as const;
+export const RESUME_TOKEN_CHANGED = 'resumeTokenChanged' as const;
+
+/** @public */
+export const HEARTBEAT_EVENTS = Object.freeze([
+  SERVER_HEARTBEAT_STARTED,
+  SERVER_HEARTBEAT_SUCCEEDED,
+  SERVER_HEARTBEAT_FAILED
+] as const);
+
+/** @public */
+export const CMAP_EVENTS = Object.freeze([
+  CONNECTION_POOL_CREATED,
+  CONNECTION_POOL_READY,
+  CONNECTION_POOL_CLEARED,
+  CONNECTION_POOL_CLOSED,
+  CONNECTION_CREATED,
+  CONNECTION_READY,
+  CONNECTION_CLOSED,
+  CONNECTION_CHECK_OUT_STARTED,
+  CONNECTION_CHECK_OUT_FAILED,
+  CONNECTION_CHECKED_OUT,
+  CONNECTION_CHECKED_IN
+] as const);
+
+/** @public */
+export const TOPOLOGY_EVENTS = Object.freeze([
+  SERVER_OPENING,
+  SERVER_CLOSED,
+  SERVER_DESCRIPTION_CHANGED,
+  TOPOLOGY_OPENING,
+  TOPOLOGY_CLOSED,
+  TOPOLOGY_DESCRIPTION_CHANGED,
+  ERROR,
+  TIMEOUT,
+  CLOSE
+] as const);
+
+/** @public */
+export const APM_EVENTS = Object.freeze([
+  COMMAND_STARTED,
+  COMMAND_SUCCEEDED,
+  COMMAND_FAILED
+] as const);
+
+/**
+ * All events that we relay to the `Topology`
+ * @internal
+ */
+export const SERVER_RELAY_EVENTS = Object.freeze([
+  SERVER_HEARTBEAT_STARTED,
+  SERVER_HEARTBEAT_SUCCEEDED,
+  SERVER_HEARTBEAT_FAILED,
+  COMMAND_STARTED,
+  COMMAND_SUCCEEDED,
+  COMMAND_FAILED,
+  ...CMAP_EVENTS
+] as const);
+
+/**
+ * All events we listen to from `Server` instances, but do not forward to the client
+ * @internal
+ */
+export const LOCAL_SERVER_EVENTS = Object.freeze([
+  CONNECT,
+  DESCRIPTION_RECEIVED,
+  CLOSED,
+  ENDED
+] as const);
+
+/** @public */
+export const MONGO_CLIENT_EVENTS = Object.freeze([
+  ...CMAP_EVENTS,
+  ...APM_EVENTS,
+  ...TOPOLOGY_EVENTS,
+  ...HEARTBEAT_EVENTS
+] as const);
+
+/**
+ * @internal
+ * The legacy hello command that was deprecated in MongoDB 5.0.
+ */
+export const LEGACY_HELLO_COMMAND = 'ismaster';
+
+/**
+ * @internal
+ * The legacy hello command that was deprecated in MongoDB 5.0.
+ */
+export const LEGACY_HELLO_COMMAND_CAMEL_CASE = 'isMaster';
+
+// Typescript errors if we index objects with `Symbol.for(...)`, so
+// to avoid TS errors we pull them out into variables.  Then we can type
+// the objects (and class) that we expect to see them on and prevent TS
+// errors.
+/** @internal */
+export const kDecorateResult = Symbol.for('@@mdb.decorateDecryptionResult');
+/** @internal */
+export const kDecoratedKeys = Symbol.for('@@mdb.decryptedKeys');
diff --git a/backend/node_modules/mongodb/src/cursor/abstract_cursor.ts b/backend/node_modules/mongodb/src/cursor/abstract_cursor.ts
new file mode 100644
index 0000000..8eccdfc
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cursor/abstract_cursor.ts
@@ -0,0 +1,1202 @@
+import { Readable, Transform } from 'stream';
+
+import { type BSONSerializeOptions, type Document, Long, pluckBSONSerializeOptions } from '../bson';
+import { type OnDemandDocumentDeserializeOptions } from '../cmap/wire_protocol/on_demand/document';
+import { type CursorResponse } from '../cmap/wire_protocol/responses';
+import {
+  MongoAPIError,
+  MongoCursorExhaustedError,
+  MongoCursorInUseError,
+  MongoInvalidArgumentError,
+  MongoRuntimeError,
+  MongoTailableCursorError
+} from '../error';
+import type { MongoClient } from '../mongo_client';
+import { TypedEventEmitter } from '../mongo_types';
+import { executeOperation } from '../operations/execute_operation';
+import { GetMoreOperation } from '../operations/get_more';
+import { KillCursorsOperation } from '../operations/kill_cursors';
+import { ReadConcern, type ReadConcernLike } from '../read_concern';
+import { ReadPreference, type ReadPreferenceLike } from '../read_preference';
+import { type AsyncDisposable, configureResourceManagement } from '../resource_management';
+import type { Server } from '../sdam/server';
+import { ClientSession, maybeClearPinnedConnection } from '../sessions';
+import { type CSOTTimeoutContext, type Timeout, TimeoutContext } from '../timeout';
+import { type MongoDBNamespace, squashError } from '../utils';
+
+/**
+ * @internal
+ * TODO(NODE-2882): A cursor's getMore commands must be run on the same server it was started on
+ * and the same session must be used for the lifetime of the cursor. This object serves to get the
+ * server and session (along with the response) out of executeOperation back to the AbstractCursor.
+ *
+ * There may be a better design for communicating these values back to the cursor, currently an operation
+ * MUST store the selected server on itself so it can be read after executeOperation has returned.
+ */
+export interface InitialCursorResponse {
+  /** The server selected for the operation */
+  server: Server;
+  /** The session used for this operation, may be implicitly created */
+  session?: ClientSession;
+  /** The raw server response for the operation */
+  response: CursorResponse;
+}
+
+/** @public */
+export const CURSOR_FLAGS = [
+  'tailable',
+  'oplogReplay',
+  'noCursorTimeout',
+  'awaitData',
+  'exhaust',
+  'partial'
+] as const;
+
+/** @public */
+export interface CursorStreamOptions {
+  /** A transformation method applied to each document emitted by the stream */
+  transform?(this: void, doc: Document): Document;
+}
+
+/** @public */
+export type CursorFlag = (typeof CURSOR_FLAGS)[number];
+
+/**
+ * @public
+ * @experimental
+ * Specifies how `timeoutMS` is applied to the cursor. Can be either `'cursorLifeTime'` or `'iteration'`
+ * When set to `'iteration'`, the deadline specified by `timeoutMS` applies to each call of
+ * `cursor.next()`.
+ * When set to `'cursorLifetime'`, the deadline applies to the life of the entire cursor.
+ *
+ * Depending on the type of cursor being used, this option has different default values.
+ * For non-tailable cursors, this value defaults to `'cursorLifetime'`
+ * For tailable cursors, this value defaults to `'iteration'` since tailable cursors, by
+ * definition can have an arbitrarily long lifetime.
+ *
+ * @example
+ * ```ts
+ * const cursor = collection.find({}, {timeoutMS: 100, timeoutMode: 'iteration'});
+ * for await (const doc of cursor) {
+ *  // process doc
+ *  // This will throw a timeout error if any of the iterator's `next()` calls takes more than 100ms, but
+ *  // will continue to iterate successfully otherwise, regardless of the number of batches.
+ * }
+ * ```
+ *
+ * @example
+ * ```ts
+ * const cursor = collection.find({}, { timeoutMS: 1000, timeoutMode: 'cursorLifetime' });
+ * const docs = await cursor.toArray(); // This entire line will throw a timeout error if all batches are not fetched and returned within 1000ms.
+ * ```
+ */
+export const CursorTimeoutMode = Object.freeze({
+  ITERATION: 'iteration',
+  LIFETIME: 'cursorLifetime'
+} as const);
+
+/**
+ * @public
+ * @experimental
+ */
+export type CursorTimeoutMode = (typeof CursorTimeoutMode)[keyof typeof CursorTimeoutMode];
+
+/** @public */
+export interface AbstractCursorOptions extends BSONSerializeOptions {
+  session?: ClientSession;
+  readPreference?: ReadPreferenceLike;
+  readConcern?: ReadConcernLike;
+  /**
+   * Specifies the number of documents to return in each response from MongoDB
+   */
+  batchSize?: number;
+  /**
+   * When applicable `maxTimeMS` controls the amount of time the initial command
+   * that constructs a cursor should take. (ex. find, aggregate, listCollections)
+   */
+  maxTimeMS?: number;
+  /**
+   * When applicable `maxAwaitTimeMS` controls the amount of time subsequent getMores
+   * that a cursor uses to fetch more data should take. (ex. cursor.next())
+   */
+  maxAwaitTimeMS?: number;
+  /**
+   * Comment to apply to the operation.
+   *
+   * In server versions pre-4.4, 'comment' must be string.  A server
+   * error will be thrown if any other type is provided.
+   *
+   * In server versions 4.4 and above, 'comment' can be any valid BSON type.
+   */
+  comment?: unknown;
+  /**
+   * By default, MongoDB will automatically close a cursor when the
+   * client has exhausted all results in the cursor. However, for [capped collections](https://www.mongodb.com/docs/manual/core/capped-collections)
+   * you may use a Tailable Cursor that remains open after the client exhausts
+   * the results in the initial cursor.
+   */
+  tailable?: boolean;
+  /**
+   * If awaitData is set to true, when the cursor reaches the end of the capped collection,
+   * MongoDB blocks the query thread for a period of time waiting for new data to arrive.
+   * When new data is inserted into the capped collection, the blocked thread is signaled
+   * to wake up and return the next batch to the client.
+   */
+  awaitData?: boolean;
+  noCursorTimeout?: boolean;
+  /** Specifies the time an operation will run until it throws a timeout error. See {@link AbstractCursorOptions.timeoutMode} for more details on how this option applies to cursors. */
+  timeoutMS?: number;
+  /**
+   * @public
+   * @experimental
+   * Specifies how `timeoutMS` is applied to the cursor. Can be either `'cursorLifeTime'` or `'iteration'`
+   * When set to `'iteration'`, the deadline specified by `timeoutMS` applies to each call of
+   * `cursor.next()`.
+   * When set to `'cursorLifetime'`, the deadline applies to the life of the entire cursor.
+   *
+   * Depending on the type of cursor being used, this option has different default values.
+   * For non-tailable cursors, this value defaults to `'cursorLifetime'`
+   * For tailable cursors, this value defaults to `'iteration'` since tailable cursors, by
+   * definition can have an arbitrarily long lifetime.
+   *
+   * @example
+   * ```ts
+   * const cursor = collection.find({}, {timeoutMS: 100, timeoutMode: 'iteration'});
+   * for await (const doc of cursor) {
+   *  // process doc
+   *  // This will throw a timeout error if any of the iterator's `next()` calls takes more than 100ms, but
+   *  // will continue to iterate successfully otherwise, regardless of the number of batches.
+   * }
+   * ```
+   *
+   * @example
+   * ```ts
+   * const cursor = collection.find({}, { timeoutMS: 1000, timeoutMode: 'cursorLifetime' });
+   * const docs = await cursor.toArray(); // This entire line will throw a timeout error if all batches are not fetched and returned within 1000ms.
+   * ```
+   */
+  timeoutMode?: CursorTimeoutMode;
+
+  /**
+   * @internal
+   *
+   * A timeout context to govern the total time the cursor can live.  If provided, the cursor
+   * cannot be used in ITERATION mode.
+   */
+  timeoutContext?: CursorTimeoutContext;
+}
+
+/** @internal */
+export type InternalAbstractCursorOptions = Omit<AbstractCursorOptions, 'readPreference'> & {
+  // resolved
+  readPreference: ReadPreference;
+  readConcern?: ReadConcern;
+
+  // cursor flags, some are deprecated
+  oplogReplay?: boolean;
+  exhaust?: boolean;
+  partial?: boolean;
+
+  omitMaxTimeMS?: boolean;
+};
+
+/** @public */
+export type AbstractCursorEvents = {
+  [AbstractCursor.CLOSE](): void;
+};
+
+/** @public */
+export abstract class AbstractCursor<
+    TSchema = any,
+    CursorEvents extends AbstractCursorEvents = AbstractCursorEvents
+  >
+  extends TypedEventEmitter<CursorEvents>
+  implements AsyncDisposable
+{
+  /** @internal */
+  private cursorId: Long | null;
+  /** @internal */
+  private cursorSession: ClientSession;
+  /** @internal */
+  private selectedServer?: Server;
+  /** @internal */
+  private cursorNamespace: MongoDBNamespace;
+  /** @internal */
+  private documents: CursorResponse | null = null;
+  /** @internal */
+  private cursorClient: MongoClient;
+  /** @internal */
+  private transform?: (doc: TSchema) => any;
+  /**
+   * @internal
+   * This is true whether or not the first command fails. It only indicates whether or not the first
+   * command has been run.
+   */
+  private initialized: boolean;
+  /** @internal */
+  private isClosed: boolean;
+  /** @internal */
+  private isKilled: boolean;
+  /** @internal */
+  protected readonly cursorOptions: InternalAbstractCursorOptions;
+  /** @internal */
+  protected timeoutContext?: CursorTimeoutContext;
+
+  /** @event */
+  static readonly CLOSE = 'close' as const;
+
+  /** @internal */
+  protected deserializationOptions: OnDemandDocumentDeserializeOptions;
+
+  /** @internal */
+  protected constructor(
+    client: MongoClient,
+    namespace: MongoDBNamespace,
+    options: AbstractCursorOptions = {}
+  ) {
+    super();
+
+    if (!client.s.isMongoClient) {
+      throw new MongoRuntimeError('Cursor must be constructed with MongoClient');
+    }
+    this.cursorClient = client;
+    this.cursorNamespace = namespace;
+    this.cursorId = null;
+    this.initialized = false;
+    this.isClosed = false;
+    this.isKilled = false;
+    this.cursorOptions = {
+      readPreference:
+        options.readPreference && options.readPreference instanceof ReadPreference
+          ? options.readPreference
+          : ReadPreference.primary,
+      ...pluckBSONSerializeOptions(options),
+      timeoutMS: options?.timeoutContext?.csotEnabled()
+        ? options.timeoutContext.timeoutMS
+        : options.timeoutMS,
+      tailable: options.tailable,
+      awaitData: options.awaitData
+    };
+
+    if (this.cursorOptions.timeoutMS != null) {
+      if (options.timeoutMode == null) {
+        if (options.tailable) {
+          if (options.awaitData) {
+            if (
+              options.maxAwaitTimeMS != null &&
+              options.maxAwaitTimeMS >= this.cursorOptions.timeoutMS
+            )
+              throw new MongoInvalidArgumentError(
+                'Cannot specify maxAwaitTimeMS >= timeoutMS for a tailable awaitData cursor'
+              );
+          }
+
+          this.cursorOptions.timeoutMode = CursorTimeoutMode.ITERATION;
+        } else {
+          this.cursorOptions.timeoutMode = CursorTimeoutMode.LIFETIME;
+        }
+      } else {
+        if (options.tailable && options.timeoutMode === CursorTimeoutMode.LIFETIME) {
+          throw new MongoInvalidArgumentError(
+            "Cannot set tailable cursor's timeoutMode to LIFETIME"
+          );
+        }
+        this.cursorOptions.timeoutMode = options.timeoutMode;
+      }
+    } else {
+      if (options.timeoutMode != null)
+        throw new MongoInvalidArgumentError('Cannot set timeoutMode without setting timeoutMS');
+    }
+
+    // Set for initial command
+    this.cursorOptions.omitMaxTimeMS =
+      this.cursorOptions.timeoutMS != null &&
+      ((this.cursorOptions.timeoutMode === CursorTimeoutMode.ITERATION &&
+        !this.cursorOptions.tailable) ||
+        (this.cursorOptions.tailable && !this.cursorOptions.awaitData));
+
+    const readConcern = ReadConcern.fromOptions(options);
+    if (readConcern) {
+      this.cursorOptions.readConcern = readConcern;
+    }
+
+    if (typeof options.batchSize === 'number') {
+      this.cursorOptions.batchSize = options.batchSize;
+    }
+
+    // we check for undefined specifically here to allow falsy values
+    // eslint-disable-next-line no-restricted-syntax
+    if (options.comment !== undefined) {
+      this.cursorOptions.comment = options.comment;
+    }
+
+    if (typeof options.maxTimeMS === 'number') {
+      this.cursorOptions.maxTimeMS = options.maxTimeMS;
+    }
+
+    if (typeof options.maxAwaitTimeMS === 'number') {
+      this.cursorOptions.maxAwaitTimeMS = options.maxAwaitTimeMS;
+    }
+
+    if (options.session instanceof ClientSession) {
+      this.cursorSession = options.session;
+    } else {
+      this.cursorSession = this.cursorClient.startSession({ owner: this, explicit: false });
+    }
+
+    this.deserializationOptions = {
+      ...this.cursorOptions,
+      validation: {
+        utf8: options?.enableUtf8Validation === false ? false : true
+      }
+    };
+
+    this.timeoutContext = options.timeoutContext;
+  }
+
+  /**
+   * The cursor has no id until it receives a response from the initial cursor creating command.
+   *
+   * It is non-zero for as long as the database has an open cursor.
+   *
+   * The initiating command may receive a zero id if the entire result is in the `firstBatch`.
+   */
+  get id(): Long | undefined {
+    return this.cursorId ?? undefined;
+  }
+
+  /** @internal */
+  get isDead() {
+    return (this.cursorId?.isZero() ?? false) || this.isClosed || this.isKilled;
+  }
+
+  /** @internal */
+  get client(): MongoClient {
+    return this.cursorClient;
+  }
+
+  /** @internal */
+  get server(): Server | undefined {
+    return this.selectedServer;
+  }
+
+  get namespace(): MongoDBNamespace {
+    return this.cursorNamespace;
+  }
+
+  get readPreference(): ReadPreference {
+    return this.cursorOptions.readPreference;
+  }
+
+  get readConcern(): ReadConcern | undefined {
+    return this.cursorOptions.readConcern;
+  }
+
+  /** @internal */
+  get session(): ClientSession {
+    return this.cursorSession;
+  }
+
+  set session(clientSession: ClientSession) {
+    this.cursorSession = clientSession;
+  }
+
+  /**
+   * The cursor is closed and all remaining locally buffered documents have been iterated.
+   */
+  get closed(): boolean {
+    return this.isClosed && (this.documents?.length ?? 0) === 0;
+  }
+
+  /**
+   * A `killCursors` command was attempted on this cursor.
+   * This is performed if the cursor id is non zero.
+   */
+  get killed(): boolean {
+    return this.isKilled;
+  }
+
+  get loadBalanced(): boolean {
+    return !!this.cursorClient.topology?.loadBalanced;
+  }
+
+  /**
+   * @beta
+   * @experimental
+   * An alias for {@link AbstractCursor.close|AbstractCursor.close()}.
+   */
+  declare [Symbol.asyncDispose]: () => Promise<void>;
+  /** @internal */
+  async asyncDispose() {
+    await this.close();
+  }
+
+  /** Returns current buffered documents length */
+  bufferedCount(): number {
+    return this.documents?.length ?? 0;
+  }
+
+  /** Returns current buffered documents */
+  readBufferedDocuments(number?: number): NonNullable<TSchema>[] {
+    const bufferedDocs: NonNullable<TSchema>[] = [];
+    const documentsToRead = Math.min(
+      number ?? this.documents?.length ?? 0,
+      this.documents?.length ?? 0
+    );
+
+    for (let count = 0; count < documentsToRead; count++) {
+      const document = this.documents?.shift(this.deserializationOptions);
+      if (document != null) {
+        bufferedDocs.push(document);
+      }
+    }
+
+    return bufferedDocs;
+  }
+
+  async *[Symbol.asyncIterator](): AsyncGenerator<TSchema, void, void> {
+    if (this.closed) {
+      return;
+    }
+
+    try {
+      while (true) {
+        if (this.isKilled) {
+          return;
+        }
+
+        if (this.closed) {
+          return;
+        }
+
+        if (this.cursorId != null && this.isDead && (this.documents?.length ?? 0) === 0) {
+          return;
+        }
+
+        const document = await this.next();
+
+        // eslint-disable-next-line no-restricted-syntax
+        if (document === null) {
+          return;
+        }
+
+        yield document;
+      }
+    } finally {
+      // Only close the cursor if it has not already been closed. This finally clause handles
+      // the case when a user would break out of a for await of loop early.
+      if (!this.isClosed) {
+        try {
+          await this.close();
+        } catch (error) {
+          squashError(error);
+        }
+      }
+    }
+  }
+
+  stream(options?: CursorStreamOptions): Readable & AsyncIterable<TSchema> {
+    if (options?.transform) {
+      const transform = options.transform;
+      const readable = new ReadableCursorStream(this);
+
+      const transformedStream = readable.pipe(
+        new Transform({
+          objectMode: true,
+          highWaterMark: 1,
+          transform(chunk, _, callback) {
+            try {
+              const transformed = transform(chunk);
+              callback(undefined, transformed);
+            } catch (err) {
+              callback(err);
+            }
+          }
+        })
+      );
+
+      // Bubble errors to transformed stream, because otherwise no way
+      // to handle this error.
+      readable.on('error', err => transformedStream.emit('error', err));
+
+      return transformedStream;
+    }
+
+    return new ReadableCursorStream(this);
+  }
+
+  async hasNext(): Promise<boolean> {
+    if (this.cursorId === Long.ZERO) {
+      return false;
+    }
+
+    if (this.cursorOptions.timeoutMode === CursorTimeoutMode.ITERATION && this.cursorId != null) {
+      this.timeoutContext?.refresh();
+    }
+    try {
+      do {
+        if ((this.documents?.length ?? 0) !== 0) {
+          return true;
+        }
+        await this.fetchBatch();
+      } while (!this.isDead || (this.documents?.length ?? 0) !== 0);
+    } finally {
+      if (this.cursorOptions.timeoutMode === CursorTimeoutMode.ITERATION) {
+        this.timeoutContext?.clear();
+      }
+    }
+
+    return false;
+  }
+
+  /** Get the next available document from the cursor, returns null if no more documents are available. */
+  async next(): Promise<TSchema | null> {
+    if (this.cursorId === Long.ZERO) {
+      throw new MongoCursorExhaustedError();
+    }
+
+    if (this.cursorOptions.timeoutMode === CursorTimeoutMode.ITERATION && this.cursorId != null) {
+      this.timeoutContext?.refresh();
+    }
+
+    try {
+      do {
+        const doc = this.documents?.shift(this.deserializationOptions);
+        if (doc != null) {
+          if (this.transform != null) return await this.transformDocument(doc);
+          return doc;
+        }
+        await this.fetchBatch();
+      } while (!this.isDead || (this.documents?.length ?? 0) !== 0);
+    } finally {
+      if (this.cursorOptions.timeoutMode === CursorTimeoutMode.ITERATION) {
+        this.timeoutContext?.clear();
+      }
+    }
+
+    return null;
+  }
+
+  /**
+   * Try to get the next available document from the cursor or `null` if an empty batch is returned
+   */
+  async tryNext(): Promise<TSchema | null> {
+    if (this.cursorId === Long.ZERO) {
+      throw new MongoCursorExhaustedError();
+    }
+
+    if (this.cursorOptions.timeoutMode === CursorTimeoutMode.ITERATION && this.cursorId != null) {
+      this.timeoutContext?.refresh();
+    }
+    try {
+      let doc = this.documents?.shift(this.deserializationOptions);
+      if (doc != null) {
+        if (this.transform != null) return await this.transformDocument(doc);
+        return doc;
+      }
+
+      await this.fetchBatch();
+
+      doc = this.documents?.shift(this.deserializationOptions);
+      if (doc != null) {
+        if (this.transform != null) return await this.transformDocument(doc);
+        return doc;
+      }
+    } finally {
+      if (this.cursorOptions.timeoutMode === CursorTimeoutMode.ITERATION) {
+        this.timeoutContext?.clear();
+      }
+    }
+
+    return null;
+  }
+
+  /**
+   * Iterates over all the documents for this cursor using the iterator, callback pattern.
+   *
+   * If the iterator returns `false`, iteration will stop.
+   *
+   * @param iterator - The iteration callback.
+   * @deprecated - Will be removed in a future release. Use for await...of instead.
+   */
+  async forEach(iterator: (doc: TSchema) => boolean | void): Promise<void> {
+    if (typeof iterator !== 'function') {
+      throw new MongoInvalidArgumentError('Argument "iterator" must be a function');
+    }
+    for await (const document of this) {
+      const result = iterator(document);
+      if (result === false) {
+        break;
+      }
+    }
+  }
+
+  /**
+   * Frees any client-side resources used by the cursor.
+   */
+  async close(options?: { timeoutMS?: number }): Promise<void> {
+    await this.cleanup(options?.timeoutMS);
+  }
+
+  /**
+   * Returns an array of documents. The caller is responsible for making sure that there
+   * is enough memory to store the results. Note that the array only contains partial
+   * results when this cursor had been previously accessed. In that case,
+   * cursor.rewind() can be used to reset the cursor.
+   */
+  async toArray(): Promise<TSchema[]> {
+    const array: TSchema[] = [];
+    // at the end of the loop (since readBufferedDocuments is called) the buffer will be empty
+    // then, the 'await of' syntax will run a getMore call
+    for await (const document of this) {
+      array.push(document);
+      const docs = this.readBufferedDocuments();
+      if (this.transform != null) {
+        for (const doc of docs) {
+          array.push(await this.transformDocument(doc));
+        }
+      } else {
+        array.push(...docs);
+      }
+    }
+    return array;
+  }
+  /**
+   * Add a cursor flag to the cursor
+   *
+   * @param flag - The flag to set, must be one of following ['tailable', 'oplogReplay', 'noCursorTimeout', 'awaitData', 'partial' -.
+   * @param value - The flag boolean value.
+   */
+  addCursorFlag(flag: CursorFlag, value: boolean): this {
+    this.throwIfInitialized();
+    if (!CURSOR_FLAGS.includes(flag)) {
+      throw new MongoInvalidArgumentError(`Flag ${flag} is not one of ${CURSOR_FLAGS}`);
+    }
+
+    if (typeof value !== 'boolean') {
+      throw new MongoInvalidArgumentError(`Flag ${flag} must be a boolean value`);
+    }
+
+    this.cursorOptions[flag] = value;
+    return this;
+  }
+
+  /**
+   * Map all documents using the provided function
+   * If there is a transform set on the cursor, that will be called first and the result passed to
+   * this function's transform.
+   *
+   * @remarks
+   *
+   * **Note** Cursors use `null` internally to indicate that there are no more documents in the cursor. Providing a mapping
+   * function that maps values to `null` will result in the cursor closing itself before it has finished iterating
+   * all documents.  This will **not** result in a memory leak, just surprising behavior.  For example:
+   *
+   * ```typescript
+   * const cursor = collection.find({});
+   * cursor.map(() => null);
+   *
+   * const documents = await cursor.toArray();
+   * // documents is always [], regardless of how many documents are in the collection.
+   * ```
+   *
+   * Other falsey values are allowed:
+   *
+   * ```typescript
+   * const cursor = collection.find({});
+   * cursor.map(() => '');
+   *
+   * const documents = await cursor.toArray();
+   * // documents is now an array of empty strings
+   * ```
+   *
+   * **Note for Typescript Users:** adding a transform changes the return type of the iteration of this cursor,
+   * it **does not** return a new instance of a cursor. This means when calling map,
+   * you should always assign the result to a new variable in order to get a correctly typed cursor variable.
+   * Take note of the following example:
+   *
+   * @example
+   * ```typescript
+   * const cursor: FindCursor<Document> = coll.find();
+   * const mappedCursor: FindCursor<number> = cursor.map(doc => Object.keys(doc).length);
+   * const keyCounts: number[] = await mappedCursor.toArray(); // cursor.toArray() still returns Document[]
+   * ```
+   * @param transform - The mapping transformation method.
+   */
+  map<T = any>(transform: (doc: TSchema) => T): AbstractCursor<T> {
+    this.throwIfInitialized();
+    const oldTransform = this.transform;
+    if (oldTransform) {
+      this.transform = doc => {
+        return transform(oldTransform(doc));
+      };
+    } else {
+      this.transform = transform;
+    }
+
+    return this as unknown as AbstractCursor<T>;
+  }
+
+  /**
+   * Set the ReadPreference for the cursor.
+   *
+   * @param readPreference - The new read preference for the cursor.
+   */
+  withReadPreference(readPreference: ReadPreferenceLike): this {
+    this.throwIfInitialized();
+    if (readPreference instanceof ReadPreference) {
+      this.cursorOptions.readPreference = readPreference;
+    } else if (typeof readPreference === 'string') {
+      this.cursorOptions.readPreference = ReadPreference.fromString(readPreference);
+    } else {
+      throw new MongoInvalidArgumentError(`Invalid read preference: ${readPreference}`);
+    }
+
+    return this;
+  }
+
+  /**
+   * Set the ReadPreference for the cursor.
+   *
+   * @param readPreference - The new read preference for the cursor.
+   */
+  withReadConcern(readConcern: ReadConcernLike): this {
+    this.throwIfInitialized();
+    const resolvedReadConcern = ReadConcern.fromOptions({ readConcern });
+    if (resolvedReadConcern) {
+      this.cursorOptions.readConcern = resolvedReadConcern;
+    }
+
+    return this;
+  }
+
+  /**
+   * Set a maxTimeMS on the cursor query, allowing for hard timeout limits on queries (Only supported on MongoDB 2.6 or higher)
+   *
+   * @param value - Number of milliseconds to wait before aborting the query.
+   */
+  maxTimeMS(value: number): this {
+    this.throwIfInitialized();
+    if (typeof value !== 'number') {
+      throw new MongoInvalidArgumentError('Argument for maxTimeMS must be a number');
+    }
+
+    this.cursorOptions.maxTimeMS = value;
+    return this;
+  }
+
+  /**
+   * Set the batch size for the cursor.
+   *
+   * @param value - The number of documents to return per batch. See {@link https://www.mongodb.com/docs/manual/reference/command/find/|find command documentation}.
+   */
+  batchSize(value: number): this {
+    this.throwIfInitialized();
+    if (this.cursorOptions.tailable) {
+      throw new MongoTailableCursorError('Tailable cursor does not support batchSize');
+    }
+
+    if (typeof value !== 'number') {
+      throw new MongoInvalidArgumentError('Operation "batchSize" requires an integer');
+    }
+
+    this.cursorOptions.batchSize = value;
+    return this;
+  }
+
+  /**
+   * Rewind this cursor to its uninitialized state. Any options that are present on the cursor will
+   * remain in effect. Iterating this cursor will cause new queries to be sent to the server, even
+   * if the resultant data has already been retrieved by this cursor.
+   */
+  rewind(): void {
+    if (this.timeoutContext && this.timeoutContext.owner !== this) {
+      throw new MongoAPIError(`Cannot rewind cursor that does not own its timeout context.`);
+    }
+    if (!this.initialized) {
+      return;
+    }
+
+    this.cursorId = null;
+    this.documents?.clear();
+    this.timeoutContext?.clear();
+    this.timeoutContext = undefined;
+    this.isClosed = false;
+    this.isKilled = false;
+    this.initialized = false;
+
+    const session = this.cursorSession;
+    if (session) {
+      // We only want to end this session if we created it, and it hasn't ended yet
+      if (session.explicit === false) {
+        if (!session.hasEnded) {
+          session.endSession().then(undefined, squashError);
+        }
+        this.cursorSession = this.cursorClient.startSession({ owner: this, explicit: false });
+      }
+    }
+  }
+
+  /**
+   * Returns a new uninitialized copy of this cursor, with options matching those that have been set on the current instance
+   */
+  abstract clone(): AbstractCursor<TSchema>;
+
+  /** @internal */
+  protected abstract _initialize(
+    session: ClientSession | undefined
+  ): Promise<InitialCursorResponse>;
+
+  /** @internal */
+  async getMore(batchSize: number): Promise<CursorResponse> {
+    if (this.cursorId == null) {
+      throw new MongoRuntimeError(
+        'Unexpected null cursor id. A cursor creating command should have set this'
+      );
+    }
+    if (this.selectedServer == null) {
+      throw new MongoRuntimeError(
+        'Unexpected null selectedServer. A cursor creating command should have set this'
+      );
+    }
+    const getMoreOptions = {
+      ...this.cursorOptions,
+      session: this.cursorSession,
+      batchSize
+    };
+
+    const getMoreOperation = new GetMoreOperation(
+      this.cursorNamespace,
+      this.cursorId,
+      this.selectedServer,
+      getMoreOptions
+    );
+
+    return await executeOperation(this.cursorClient, getMoreOperation, this.timeoutContext);
+  }
+
+  /**
+   * @internal
+   *
+   * This function is exposed for the unified test runner's createChangeStream
+   * operation.  We cannot refactor to use the abstract _initialize method without
+   * a significant refactor.
+   */
+  private async cursorInit(): Promise<void> {
+    if (this.cursorOptions.timeoutMS != null) {
+      this.timeoutContext ??= new CursorTimeoutContext(
+        TimeoutContext.create({
+          serverSelectionTimeoutMS: this.client.s.options.serverSelectionTimeoutMS,
+          timeoutMS: this.cursorOptions.timeoutMS
+        }),
+        this
+      );
+    }
+    try {
+      const state = await this._initialize(this.cursorSession);
+      // Set omitMaxTimeMS to the value needed for subsequent getMore calls
+      this.cursorOptions.omitMaxTimeMS = this.cursorOptions.timeoutMS != null;
+      const response = state.response;
+      this.selectedServer = state.server;
+      this.cursorId = response.id;
+      this.cursorNamespace = response.ns ?? this.namespace;
+      this.documents = response;
+      this.initialized = true; // the cursor is now initialized, even if it is dead
+    } catch (error) {
+      // the cursor is now initialized, even if an error occurred
+      this.initialized = true;
+      await this.cleanup(undefined, error);
+      throw error;
+    }
+
+    if (this.isDead) {
+      await this.cleanup();
+    }
+
+    return;
+  }
+
+  /** @internal Attempt to obtain more documents */
+  private async fetchBatch(): Promise<void> {
+    if (this.isClosed) {
+      return;
+    }
+
+    if (this.isDead) {
+      // if the cursor is dead, we clean it up
+      // cleanupCursor should never throw, but if it does it indicates a bug in the driver
+      // and we should surface the error
+      await this.cleanup();
+      return;
+    }
+
+    if (this.cursorId == null) {
+      await this.cursorInit();
+      // If the cursor died or returned documents, return
+      if ((this.documents?.length ?? 0) !== 0 || this.isDead) return;
+      // Otherwise, run a getMore
+    }
+
+    // otherwise need to call getMore
+    const batchSize = this.cursorOptions.batchSize || 1000;
+
+    try {
+      const response = await this.getMore(batchSize);
+      this.cursorId = response.id;
+      this.documents = response;
+    } catch (error) {
+      try {
+        await this.cleanup(undefined, error);
+      } catch (cleanupError) {
+        // `cleanupCursor` should never throw, squash and throw the original error
+        squashError(cleanupError);
+      }
+      throw error;
+    }
+
+    if (this.isDead) {
+      // If we successfully received a response from a cursor BUT the cursor indicates that it is exhausted,
+      // we intentionally clean up the cursor to release its session back into the pool before the cursor
+      // is iterated.  This prevents a cursor that is exhausted on the server from holding
+      // onto a session indefinitely until the AbstractCursor is iterated.
+      //
+      // cleanupCursorAsync should never throw, but if it does it indicates a bug in the driver
+      // and we should surface the error
+      await this.cleanup();
+    }
+  }
+
+  /** @internal */
+  private async cleanup(timeoutMS?: number, error?: Error) {
+    this.isClosed = true;
+    const session = this.cursorSession;
+    const timeoutContextForKillCursors = (): CursorTimeoutContext | undefined => {
+      if (timeoutMS != null) {
+        this.timeoutContext?.clear();
+        return new CursorTimeoutContext(
+          TimeoutContext.create({
+            serverSelectionTimeoutMS: this.client.s.options.serverSelectionTimeoutMS,
+            timeoutMS
+          }),
+          this
+        );
+      } else {
+        return this.timeoutContext?.refreshed();
+      }
+    };
+    try {
+      if (
+        !this.isKilled &&
+        this.cursorId &&
+        !this.cursorId.isZero() &&
+        this.cursorNamespace &&
+        this.selectedServer &&
+        !session.hasEnded
+      ) {
+        this.isKilled = true;
+        const cursorId = this.cursorId;
+        this.cursorId = Long.ZERO;
+
+        await executeOperation(
+          this.cursorClient,
+          new KillCursorsOperation(cursorId, this.cursorNamespace, this.selectedServer, {
+            session
+          }),
+          timeoutContextForKillCursors()
+        );
+      }
+    } catch (error) {
+      squashError(error);
+    } finally {
+      if (session?.owner === this) {
+        await session.endSession({ error });
+      }
+      if (!session?.inTransaction()) {
+        maybeClearPinnedConnection(session, { error });
+      }
+
+      this.emitClose();
+    }
+  }
+
+  /** @internal */
+  private hasEmittedClose = false;
+  /** @internal */
+  private emitClose() {
+    try {
+      if (!this.hasEmittedClose && ((this.documents?.length ?? 0) === 0 || this.isClosed)) {
+        // @ts-expect-error: CursorEvents is generic so Parameters<CursorEvents["close"]> may not be assignable to `[]`. Not sure how to require extenders do not add parameters.
+        this.emit('close');
+      }
+    } finally {
+      this.hasEmittedClose = true;
+    }
+  }
+
+  /** @internal */
+  private async transformDocument(document: NonNullable<TSchema>): Promise<NonNullable<TSchema>> {
+    if (this.transform == null) return document;
+
+    try {
+      const transformedDocument = this.transform(document);
+      // eslint-disable-next-line no-restricted-syntax
+      if (transformedDocument === null) {
+        const TRANSFORM_TO_NULL_ERROR =
+          'Cursor returned a `null` document, but the cursor is not exhausted.  Mapping documents to `null` is not supported in the cursor transform.';
+        throw new MongoAPIError(TRANSFORM_TO_NULL_ERROR);
+      }
+      return transformedDocument;
+    } catch (transformError) {
+      try {
+        await this.close();
+      } catch (closeError) {
+        squashError(closeError);
+      }
+      throw transformError;
+    }
+  }
+
+  /** @internal */
+  protected throwIfInitialized() {
+    if (this.initialized) throw new MongoCursorInUseError();
+  }
+}
+
+class ReadableCursorStream extends Readable {
+  private _cursor: AbstractCursor;
+  private _readInProgress = false;
+
+  constructor(cursor: AbstractCursor) {
+    super({
+      objectMode: true,
+      autoDestroy: false,
+      highWaterMark: 1
+    });
+    this._cursor = cursor;
+  }
+
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
+  override _read(size: number): void {
+    if (!this._readInProgress) {
+      this._readInProgress = true;
+      this._readNext();
+    }
+  }
+
+  override _destroy(error: Error | null, callback: (error?: Error | null) => void): void {
+    this._cursor.close().then(
+      () => callback(error),
+      closeError => callback(closeError)
+    );
+  }
+
+  private _readNext() {
+    if (this._cursor.id === Long.ZERO) {
+      this.push(null);
+      return;
+    }
+
+    this._cursor.next().then(
+      result => {
+        if (result == null) {
+          this.push(null);
+        } else if (this.destroyed) {
+          this._cursor.close().then(undefined, squashError);
+        } else {
+          if (this.push(result)) {
+            return this._readNext();
+          }
+
+          this._readInProgress = false;
+        }
+      },
+      err => {
+        // NOTE: This is questionable, but we have a test backing the behavior. It seems the
+        //       desired behavior is that a stream ends cleanly when a user explicitly closes
+        //       a client during iteration. Alternatively, we could do the "right" thing and
+        //       propagate the error message by removing this special case.
+        if (err.message.match(/server is closed/)) {
+          this._cursor.close().then(undefined, squashError);
+          return this.push(null);
+        }
+
+        // NOTE: This is also perhaps questionable. The rationale here is that these errors tend
+        //       to be "operation was interrupted", where a cursor has been closed but there is an
+        //       active getMore in-flight. This used to check if the cursor was killed but once
+        //       that changed to happen in cleanup legitimate errors would not destroy the
+        //       stream. There are change streams test specifically test these cases.
+        if (err.message.match(/operation was interrupted/)) {
+          return this.push(null);
+        }
+
+        // NOTE: The two above checks on the message of the error will cause a null to be pushed
+        //       to the stream, thus closing the stream before the destroy call happens. This means
+        //       that either of those error messages on a change stream will not get a proper
+        //       'error' event to be emitted (the error passed to destroy). Change stream resumability
+        //       relies on that error event to be emitted to create its new cursor and thus was not
+        //       working on 4.4 servers because the error emitted on failover was "interrupted at
+        //       shutdown" while on 5.0+ it is "The server is in quiesce mode and will shut down".
+        //       See NODE-4475.
+        return this.destroy(err);
+      }
+    );
+  }
+}
+
+configureResourceManagement(AbstractCursor.prototype);
+
+/**
+ * @internal
+ * The cursor timeout context is a wrapper around a timeout context
+ * that keeps track of the "owner" of the cursor.  For timeout contexts
+ * instantiated inside a cursor, the owner will be the cursor.
+ *
+ * All timeout behavior is exactly the same as the wrapped timeout context's.
+ */
+export class CursorTimeoutContext extends TimeoutContext {
+  constructor(
+    public timeoutContext: TimeoutContext,
+    public owner: symbol | AbstractCursor
+  ) {
+    super();
+  }
+  override get serverSelectionTimeout(): Timeout | null {
+    return this.timeoutContext.serverSelectionTimeout;
+  }
+  override get connectionCheckoutTimeout(): Timeout | null {
+    return this.timeoutContext.connectionCheckoutTimeout;
+  }
+  override get clearServerSelectionTimeout(): boolean {
+    return this.timeoutContext.clearServerSelectionTimeout;
+  }
+  override get timeoutForSocketWrite(): Timeout | null {
+    return this.timeoutContext.timeoutForSocketWrite;
+  }
+  override get timeoutForSocketRead(): Timeout | null {
+    return this.timeoutContext.timeoutForSocketRead;
+  }
+  override csotEnabled(): this is CSOTTimeoutContext {
+    return this.timeoutContext.csotEnabled();
+  }
+  override refresh(): void {
+    if (typeof this.owner !== 'symbol') return this.timeoutContext.refresh();
+  }
+  override clear(): void {
+    if (typeof this.owner !== 'symbol') return this.timeoutContext.clear();
+  }
+  override get maxTimeMS(): number | null {
+    return this.timeoutContext.maxTimeMS;
+  }
+  get timeoutMS(): number | null {
+    return this.timeoutContext.csotEnabled() ? this.timeoutContext.timeoutMS : null;
+  }
+  override refreshed(): CursorTimeoutContext {
+    return new CursorTimeoutContext(this.timeoutContext.refreshed(), this.owner);
+  }
+  override addMaxTimeMSToCommand(command: Document, options: { omitMaxTimeMS?: boolean }): void {
+    this.timeoutContext.addMaxTimeMSToCommand(command, options);
+  }
+  override getSocketTimeoutMS(): number | undefined {
+    return this.timeoutContext.getSocketTimeoutMS();
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cursor/aggregation_cursor.ts b/backend/node_modules/mongodb/src/cursor/aggregation_cursor.ts
new file mode 100644
index 0000000..cace0a4
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cursor/aggregation_cursor.ts
@@ -0,0 +1,243 @@
+import type { Document } from '../bson';
+import { MongoAPIError } from '../error';
+import {
+  Explain,
+  ExplainableCursor,
+  type ExplainCommandOptions,
+  type ExplainVerbosityLike,
+  validateExplainTimeoutOptions
+} from '../explain';
+import type { MongoClient } from '../mongo_client';
+import { AggregateOperation, type AggregateOptions } from '../operations/aggregate';
+import { executeOperation } from '../operations/execute_operation';
+import type { ClientSession } from '../sessions';
+import type { Sort } from '../sort';
+import { mergeOptions, type MongoDBNamespace } from '../utils';
+import {
+  type AbstractCursorOptions,
+  CursorTimeoutMode,
+  type InitialCursorResponse
+} from './abstract_cursor';
+
+/** @public */
+export interface AggregationCursorOptions extends AbstractCursorOptions, AggregateOptions {}
+
+/**
+ * The **AggregationCursor** class is an internal class that embodies an aggregation cursor on MongoDB
+ * allowing for iteration over the results returned from the underlying query. It supports
+ * one by one document iteration, conversion to an array or can be iterated as a Node 4.X
+ * or higher stream
+ * @public
+ */
+export class AggregationCursor<TSchema = any> extends ExplainableCursor<TSchema> {
+  public readonly pipeline: Document[];
+  /** @internal */
+  private aggregateOptions: AggregateOptions;
+
+  /** @internal */
+  constructor(
+    client: MongoClient,
+    namespace: MongoDBNamespace,
+    pipeline: Document[] = [],
+    options: AggregateOptions = {}
+  ) {
+    super(client, namespace, options);
+
+    this.pipeline = pipeline;
+    this.aggregateOptions = options;
+
+    const lastStage: Document | undefined = this.pipeline[this.pipeline.length - 1];
+
+    if (
+      this.cursorOptions.timeoutMS != null &&
+      this.cursorOptions.timeoutMode === CursorTimeoutMode.ITERATION &&
+      (lastStage?.$merge != null || lastStage?.$out != null)
+    )
+      throw new MongoAPIError('Cannot use $out or $merge stage with ITERATION timeoutMode');
+  }
+
+  clone(): AggregationCursor<TSchema> {
+    const clonedOptions = mergeOptions({}, this.aggregateOptions);
+    delete clonedOptions.session;
+    return new AggregationCursor(this.client, this.namespace, this.pipeline, {
+      ...clonedOptions
+    });
+  }
+
+  override map<T>(transform: (doc: TSchema) => T): AggregationCursor<T> {
+    return super.map(transform) as AggregationCursor<T>;
+  }
+
+  /** @internal */
+  async _initialize(session: ClientSession): Promise<InitialCursorResponse> {
+    const options = {
+      ...this.aggregateOptions,
+      ...this.cursorOptions,
+      session
+    };
+    if (options.explain) {
+      try {
+        validateExplainTimeoutOptions(options, Explain.fromOptions(options));
+      } catch {
+        throw new MongoAPIError(
+          'timeoutMS cannot be used with explain when explain is specified in aggregateOptions'
+        );
+      }
+    }
+
+    const aggregateOperation = new AggregateOperation(this.namespace, this.pipeline, options);
+
+    const response = await executeOperation(this.client, aggregateOperation, this.timeoutContext);
+
+    return { server: aggregateOperation.server, session, response };
+  }
+
+  /** Execute the explain for the cursor */
+  async explain(): Promise<Document>;
+  async explain(verbosity: ExplainVerbosityLike | ExplainCommandOptions): Promise<Document>;
+  async explain(options: { timeoutMS?: number }): Promise<Document>;
+  async explain(
+    verbosity: ExplainVerbosityLike | ExplainCommandOptions,
+    options: { timeoutMS?: number }
+  ): Promise<Document>;
+  async explain(
+    verbosity?: ExplainVerbosityLike | ExplainCommandOptions | { timeoutMS?: number },
+    options?: { timeoutMS?: number }
+  ): Promise<Document> {
+    const { explain, timeout } = this.resolveExplainTimeoutOptions(verbosity, options);
+    return (
+      await executeOperation(
+        this.client,
+        new AggregateOperation(this.namespace, this.pipeline, {
+          ...this.aggregateOptions, // NOTE: order matters here, we may need to refine this
+          ...this.cursorOptions,
+          ...timeout,
+          explain: explain ?? true
+        })
+      )
+    ).shift(this.deserializationOptions);
+  }
+
+  /** Add a stage to the aggregation pipeline
+   * @example
+   * ```
+   * const documents = await users.aggregate().addStage({ $match: { name: /Mike/ } }).toArray();
+   * ```
+   * @example
+   * ```
+   * const documents = await users.aggregate()
+   *   .addStage<{ name: string }>({ $project: { name: true } })
+   *   .toArray(); // type of documents is { name: string }[]
+   * ```
+   */
+  addStage(stage: Document): this;
+  addStage<T = Document>(stage: Document): AggregationCursor<T>;
+  addStage<T = Document>(stage: Document): AggregationCursor<T> {
+    this.throwIfInitialized();
+    if (
+      this.cursorOptions.timeoutMS != null &&
+      this.cursorOptions.timeoutMode === CursorTimeoutMode.ITERATION &&
+      (stage.$out != null || stage.$merge != null)
+    ) {
+      throw new MongoAPIError('Cannot use $out or $merge stage with ITERATION timeoutMode');
+    }
+    this.pipeline.push(stage);
+    return this as unknown as AggregationCursor<T>;
+  }
+
+  /** Add a group stage to the aggregation pipeline */
+  group<T = TSchema>($group: Document): AggregationCursor<T>;
+  group($group: Document): this {
+    return this.addStage({ $group });
+  }
+
+  /** Add a limit stage to the aggregation pipeline */
+  limit($limit: number): this {
+    return this.addStage({ $limit });
+  }
+
+  /** Add a match stage to the aggregation pipeline */
+  match($match: Document): this {
+    return this.addStage({ $match });
+  }
+
+  /** Add an out stage to the aggregation pipeline */
+  out($out: { db: string; coll: string } | string): this {
+    return this.addStage({ $out });
+  }
+
+  /**
+   * Add a project stage to the aggregation pipeline
+   *
+   * @remarks
+   * In order to strictly type this function you must provide an interface
+   * that represents the effect of your projection on the result documents.
+   *
+   * By default chaining a projection to your cursor changes the returned type to the generic {@link Document} type.
+   * You should specify a parameterized type to have assertions on your final results.
+   *
+   * @example
+   * ```typescript
+   * // Best way
+   * const docs: AggregationCursor<{ a: number }> = cursor.project<{ a: number }>({ _id: 0, a: true });
+   * // Flexible way
+   * const docs: AggregationCursor<Document> = cursor.project({ _id: 0, a: true });
+   * ```
+   *
+   * @remarks
+   * In order to strictly type this function you must provide an interface
+   * that represents the effect of your projection on the result documents.
+   *
+   * **Note for Typescript Users:** adding a transform changes the return type of the iteration of this cursor,
+   * it **does not** return a new instance of a cursor. This means when calling project,
+   * you should always assign the result to a new variable in order to get a correctly typed cursor variable.
+   * Take note of the following example:
+   *
+   * @example
+   * ```typescript
+   * const cursor: AggregationCursor<{ a: number; b: string }> = coll.aggregate([]);
+   * const projectCursor = cursor.project<{ a: number }>({ _id: 0, a: true });
+   * const aPropOnlyArray: {a: number}[] = await projectCursor.toArray();
+   *
+   * // or always use chaining and save the final cursor
+   *
+   * const cursor = coll.aggregate().project<{ a: string }>({
+   *   _id: 0,
+   *   a: { $convert: { input: '$a', to: 'string' }
+   * }});
+   * ```
+   */
+  project<T extends Document = Document>($project: Document): AggregationCursor<T> {
+    return this.addStage<T>({ $project });
+  }
+
+  /** Add a lookup stage to the aggregation pipeline */
+  lookup($lookup: Document): this {
+    return this.addStage({ $lookup });
+  }
+
+  /** Add a redact stage to the aggregation pipeline */
+  redact($redact: Document): this {
+    return this.addStage({ $redact });
+  }
+
+  /** Add a skip stage to the aggregation pipeline */
+  skip($skip: number): this {
+    return this.addStage({ $skip });
+  }
+
+  /** Add a sort stage to the aggregation pipeline */
+  sort($sort: Sort): this {
+    return this.addStage({ $sort });
+  }
+
+  /** Add a unwind stage to the aggregation pipeline */
+  unwind($unwind: Document | string): this {
+    return this.addStage({ $unwind });
+  }
+
+  /** Add a geoNear stage to the aggregation pipeline */
+  geoNear($geoNear: Document): this {
+    return this.addStage({ $geoNear });
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cursor/change_stream_cursor.ts b/backend/node_modules/mongodb/src/cursor/change_stream_cursor.ts
new file mode 100644
index 0000000..73a256c
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cursor/change_stream_cursor.ts
@@ -0,0 +1,172 @@
+import type { Document } from '../bson';
+import {
+  ChangeStream,
+  type ChangeStreamDocument,
+  type ChangeStreamEvents,
+  type OperationTime,
+  type ResumeToken
+} from '../change_stream';
+import { type CursorResponse } from '../cmap/wire_protocol/responses';
+import { INIT, RESPONSE } from '../constants';
+import type { MongoClient } from '../mongo_client';
+import { AggregateOperation } from '../operations/aggregate';
+import type { CollationOptions } from '../operations/command';
+import { executeOperation } from '../operations/execute_operation';
+import type { ClientSession } from '../sessions';
+import { maxWireVersion, type MongoDBNamespace } from '../utils';
+import {
+  AbstractCursor,
+  type AbstractCursorOptions,
+  type InitialCursorResponse
+} from './abstract_cursor';
+
+/** @internal */
+export interface ChangeStreamCursorOptions extends AbstractCursorOptions {
+  startAtOperationTime?: OperationTime;
+  resumeAfter?: ResumeToken;
+  startAfter?: ResumeToken;
+  maxAwaitTimeMS?: number;
+  collation?: CollationOptions;
+  fullDocument?: string;
+}
+
+/** @internal */
+export class ChangeStreamCursor<
+  TSchema extends Document = Document,
+  TChange extends Document = ChangeStreamDocument<TSchema>
+> extends AbstractCursor<TChange, ChangeStreamEvents> {
+  private _resumeToken: ResumeToken;
+  private startAtOperationTime: OperationTime | null;
+  private hasReceived?: boolean;
+  private readonly changeStreamCursorOptions: ChangeStreamCursorOptions;
+  private postBatchResumeToken?: ResumeToken;
+  private readonly pipeline: Document[];
+
+  /**
+   * @internal
+   *
+   * used to determine change stream resumability
+   */
+  maxWireVersion: number | undefined;
+
+  constructor(
+    client: MongoClient,
+    namespace: MongoDBNamespace,
+    pipeline: Document[] = [],
+    options: ChangeStreamCursorOptions = {}
+  ) {
+    super(client, namespace, { ...options, tailable: true, awaitData: true });
+
+    this.pipeline = pipeline;
+    this.changeStreamCursorOptions = options;
+    this._resumeToken = null;
+    this.startAtOperationTime = options.startAtOperationTime ?? null;
+
+    if (options.startAfter) {
+      this.resumeToken = options.startAfter;
+    } else if (options.resumeAfter) {
+      this.resumeToken = options.resumeAfter;
+    }
+  }
+
+  set resumeToken(token: ResumeToken) {
+    this._resumeToken = token;
+    this.emit(ChangeStream.RESUME_TOKEN_CHANGED, token);
+  }
+
+  get resumeToken(): ResumeToken {
+    return this._resumeToken;
+  }
+
+  get resumeOptions(): ChangeStreamCursorOptions {
+    const options: ChangeStreamCursorOptions = {
+      ...this.changeStreamCursorOptions
+    };
+
+    for (const key of ['resumeAfter', 'startAfter', 'startAtOperationTime'] as const) {
+      delete options[key];
+    }
+
+    if (this.resumeToken != null) {
+      if (this.changeStreamCursorOptions.startAfter && !this.hasReceived) {
+        options.startAfter = this.resumeToken;
+      } else {
+        options.resumeAfter = this.resumeToken;
+      }
+    } else if (this.startAtOperationTime != null && maxWireVersion(this.server) >= 7) {
+      options.startAtOperationTime = this.startAtOperationTime;
+    }
+
+    return options;
+  }
+
+  cacheResumeToken(resumeToken: ResumeToken): void {
+    if (this.bufferedCount() === 0 && this.postBatchResumeToken) {
+      this.resumeToken = this.postBatchResumeToken;
+    } else {
+      this.resumeToken = resumeToken;
+    }
+    this.hasReceived = true;
+  }
+
+  _processBatch(response: CursorResponse): void {
+    const { postBatchResumeToken } = response;
+    if (postBatchResumeToken) {
+      this.postBatchResumeToken = postBatchResumeToken;
+
+      if (response.batchSize === 0) {
+        this.resumeToken = postBatchResumeToken;
+      }
+    }
+  }
+
+  clone(): AbstractCursor<TChange> {
+    return new ChangeStreamCursor(this.client, this.namespace, this.pipeline, {
+      ...this.cursorOptions
+    });
+  }
+
+  async _initialize(session: ClientSession): Promise<InitialCursorResponse> {
+    const aggregateOperation = new AggregateOperation(this.namespace, this.pipeline, {
+      ...this.cursorOptions,
+      ...this.changeStreamCursorOptions,
+      session
+    });
+
+    const response = await executeOperation(
+      session.client,
+      aggregateOperation,
+      this.timeoutContext
+    );
+
+    const server = aggregateOperation.server;
+    this.maxWireVersion = maxWireVersion(server);
+
+    if (
+      this.startAtOperationTime == null &&
+      this.changeStreamCursorOptions.resumeAfter == null &&
+      this.changeStreamCursorOptions.startAfter == null &&
+      this.maxWireVersion >= 7
+    ) {
+      this.startAtOperationTime = response.operationTime;
+    }
+
+    this._processBatch(response);
+
+    this.emit(INIT, response);
+    this.emit(RESPONSE);
+
+    return { server, session, response };
+  }
+
+  override async getMore(batchSize: number): Promise<CursorResponse> {
+    const response = await super.getMore(batchSize);
+
+    this.maxWireVersion = maxWireVersion(this.server);
+    this._processBatch(response);
+
+    this.emit(ChangeStream.MORE, response);
+    this.emit(ChangeStream.RESPONSE);
+    return response;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cursor/client_bulk_write_cursor.ts b/backend/node_modules/mongodb/src/cursor/client_bulk_write_cursor.ts
new file mode 100644
index 0000000..d9da82d
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cursor/client_bulk_write_cursor.ts
@@ -0,0 +1,83 @@
+import { type Document } from '../bson';
+import { type ClientBulkWriteCursorResponse } from '../cmap/wire_protocol/responses';
+import type { MongoClient } from '../mongo_client';
+import { ClientBulkWriteOperation } from '../operations/client_bulk_write/client_bulk_write';
+import { type ClientBulkWriteCommandBuilder } from '../operations/client_bulk_write/command_builder';
+import { type ClientBulkWriteOptions } from '../operations/client_bulk_write/common';
+import { executeOperation } from '../operations/execute_operation';
+import type { ClientSession } from '../sessions';
+import { mergeOptions, MongoDBNamespace } from '../utils';
+import {
+  AbstractCursor,
+  type AbstractCursorOptions,
+  type InitialCursorResponse
+} from './abstract_cursor';
+
+/** @public */
+export interface ClientBulkWriteCursorOptions
+  extends Omit<AbstractCursorOptions, 'maxAwaitTimeMS' | 'tailable' | 'awaitData'>,
+    ClientBulkWriteOptions {}
+
+/**
+ * This is the cursor that handles client bulk write operations. Note this is never
+ * exposed directly to the user and is always immediately exhausted.
+ * @internal
+ */
+export class ClientBulkWriteCursor extends AbstractCursor {
+  commandBuilder: ClientBulkWriteCommandBuilder;
+  /** @internal */
+  private cursorResponse?: ClientBulkWriteCursorResponse;
+  /** @internal */
+  private clientBulkWriteOptions: ClientBulkWriteOptions;
+
+  /** @internal */
+  constructor(
+    client: MongoClient,
+    commandBuilder: ClientBulkWriteCommandBuilder,
+    options: ClientBulkWriteCursorOptions = {}
+  ) {
+    super(client, new MongoDBNamespace('admin', '$cmd'), options);
+
+    this.commandBuilder = commandBuilder;
+    this.clientBulkWriteOptions = options;
+  }
+
+  /**
+   * We need a way to get the top level cursor response fields for
+   * generating the bulk write result, so we expose this here.
+   */
+  get response(): ClientBulkWriteCursorResponse | null {
+    if (this.cursorResponse) return this.cursorResponse;
+    return null;
+  }
+
+  get operations(): Document[] {
+    return this.commandBuilder.lastOperations;
+  }
+
+  clone(): ClientBulkWriteCursor {
+    const clonedOptions = mergeOptions({}, this.clientBulkWriteOptions);
+    delete clonedOptions.session;
+    return new ClientBulkWriteCursor(this.client, this.commandBuilder, {
+      ...clonedOptions
+    });
+  }
+
+  /** @internal */
+  async _initialize(session: ClientSession): Promise<InitialCursorResponse> {
+    const clientBulkWriteOperation = new ClientBulkWriteOperation(this.commandBuilder, {
+      ...this.clientBulkWriteOptions,
+      ...this.cursorOptions,
+      session
+    });
+
+    const response = await executeOperation(
+      this.client,
+      clientBulkWriteOperation,
+      this.timeoutContext
+    );
+    this.cursorResponse = response;
+
+    return { server: clientBulkWriteOperation.server, session, response };
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cursor/find_cursor.ts b/backend/node_modules/mongodb/src/cursor/find_cursor.ts
new file mode 100644
index 0000000..28cb373
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cursor/find_cursor.ts
@@ -0,0 +1,482 @@
+import { type Document } from '../bson';
+import { CursorResponse } from '../cmap/wire_protocol/responses';
+import { MongoAPIError, MongoInvalidArgumentError, MongoTailableCursorError } from '../error';
+import {
+  Explain,
+  ExplainableCursor,
+  type ExplainCommandOptions,
+  type ExplainVerbosityLike,
+  validateExplainTimeoutOptions
+} from '../explain';
+import type { MongoClient } from '../mongo_client';
+import type { CollationOptions } from '../operations/command';
+import { CountOperation, type CountOptions } from '../operations/count';
+import { executeOperation } from '../operations/execute_operation';
+import { FindOperation, type FindOptions } from '../operations/find';
+import type { Hint } from '../operations/operation';
+import type { ClientSession } from '../sessions';
+import { formatSort, type Sort, type SortDirection } from '../sort';
+import { emitWarningOnce, mergeOptions, type MongoDBNamespace, squashError } from '../utils';
+import { type InitialCursorResponse } from './abstract_cursor';
+
+/** @public Flags allowed for cursor */
+export const FLAGS = [
+  'tailable',
+  'oplogReplay',
+  'noCursorTimeout',
+  'awaitData',
+  'exhaust',
+  'partial'
+] as const;
+
+/** @public */
+export class FindCursor<TSchema = any> extends ExplainableCursor<TSchema> {
+  /** @internal */
+  private cursorFilter: Document;
+  /** @internal */
+  private numReturned = 0;
+  /** @internal */
+  private readonly findOptions: FindOptions;
+
+  /** @internal */
+  constructor(
+    client: MongoClient,
+    namespace: MongoDBNamespace,
+    filter: Document = {},
+    options: FindOptions = {}
+  ) {
+    super(client, namespace, options);
+
+    this.cursorFilter = filter;
+    this.findOptions = options;
+
+    if (options.sort != null) {
+      this.findOptions.sort = formatSort(options.sort);
+    }
+  }
+
+  clone(): FindCursor<TSchema> {
+    const clonedOptions = mergeOptions({}, this.findOptions);
+    delete clonedOptions.session;
+    return new FindCursor(this.client, this.namespace, this.cursorFilter, {
+      ...clonedOptions
+    });
+  }
+
+  override map<T>(transform: (doc: TSchema) => T): FindCursor<T> {
+    return super.map(transform) as FindCursor<T>;
+  }
+
+  /** @internal */
+  async _initialize(session: ClientSession): Promise<InitialCursorResponse> {
+    const options = {
+      ...this.findOptions, // NOTE: order matters here, we may need to refine this
+      ...this.cursorOptions,
+      session
+    };
+
+    if (options.explain) {
+      try {
+        validateExplainTimeoutOptions(options, Explain.fromOptions(options));
+      } catch {
+        throw new MongoAPIError(
+          'timeoutMS cannot be used with explain when explain is specified in findOptions'
+        );
+      }
+    }
+
+    const findOperation = new FindOperation(this.namespace, this.cursorFilter, options);
+
+    const response = await executeOperation(this.client, findOperation, this.timeoutContext);
+
+    // the response is not a cursor when `explain` is enabled
+    this.numReturned = response.batchSize;
+
+    return { server: findOperation.server, session, response };
+  }
+
+  /** @internal */
+  override async getMore(batchSize: number): Promise<CursorResponse> {
+    const numReturned = this.numReturned;
+    if (numReturned) {
+      // TODO(DRIVERS-1448): Remove logic to enforce `limit` in the driver
+      const limit = this.findOptions.limit;
+      batchSize =
+        limit && limit > 0 && numReturned + batchSize > limit ? limit - numReturned : batchSize;
+
+      if (batchSize <= 0) {
+        try {
+          await this.close();
+        } catch (error) {
+          squashError(error);
+          // this is an optimization for the special case of a limit for a find command to avoid an
+          // extra getMore when the limit has been reached and the limit is a multiple of the batchSize.
+          // This is a consequence of the new query engine in 5.0 having no knowledge of the limit as it
+          // produces results for the find command.  Once a batch is filled up, it is returned and only
+          // on the subsequent getMore will the query framework consider the limit, determine the cursor
+          // is exhausted and return a cursorId of zero.
+          // instead, if we determine there are no more documents to request from the server, we preemptively
+          // close the cursor
+        }
+        return CursorResponse.emptyGetMore;
+      }
+    }
+
+    const response = await super.getMore(batchSize);
+    // TODO: wrap this in some logic to prevent it from happening if we don't need this support
+    this.numReturned = this.numReturned + response.batchSize;
+
+    return response;
+  }
+
+  /**
+   * Get the count of documents for this cursor
+   * @deprecated Use `collection.estimatedDocumentCount` or `collection.countDocuments` instead
+   */
+  async count(options?: CountOptions): Promise<number> {
+    emitWarningOnce(
+      'cursor.count is deprecated and will be removed in the next major version, please use `collection.estimatedDocumentCount` or `collection.countDocuments` instead '
+    );
+    if (typeof options === 'boolean') {
+      throw new MongoInvalidArgumentError('Invalid first parameter to count');
+    }
+    return await executeOperation(
+      this.client,
+      new CountOperation(this.namespace, this.cursorFilter, {
+        ...this.findOptions, // NOTE: order matters here, we may need to refine this
+        ...this.cursorOptions,
+        ...options
+      })
+    );
+  }
+
+  /** Execute the explain for the cursor */
+  async explain(): Promise<Document>;
+  async explain(verbosity: ExplainVerbosityLike | ExplainCommandOptions): Promise<Document>;
+  async explain(options: { timeoutMS?: number }): Promise<Document>;
+  async explain(
+    verbosity: ExplainVerbosityLike | ExplainCommandOptions,
+    options: { timeoutMS?: number }
+  ): Promise<Document>;
+  async explain(
+    verbosity?: ExplainVerbosityLike | ExplainCommandOptions | { timeoutMS?: number },
+    options?: { timeoutMS?: number }
+  ): Promise<Document> {
+    const { explain, timeout } = this.resolveExplainTimeoutOptions(verbosity, options);
+
+    return (
+      await executeOperation(
+        this.client,
+        new FindOperation(this.namespace, this.cursorFilter, {
+          ...this.findOptions, // NOTE: order matters here, we may need to refine this
+          ...this.cursorOptions,
+          ...timeout,
+          explain: explain ?? true
+        })
+      )
+    ).shift(this.deserializationOptions);
+  }
+
+  /** Set the cursor query */
+  filter(filter: Document): this {
+    this.throwIfInitialized();
+    this.cursorFilter = filter;
+    return this;
+  }
+
+  /**
+   * Set the cursor hint
+   *
+   * @param hint - If specified, then the query system will only consider plans using the hinted index.
+   */
+  hint(hint: Hint): this {
+    this.throwIfInitialized();
+    this.findOptions.hint = hint;
+    return this;
+  }
+
+  /**
+   * Set the cursor min
+   *
+   * @param min - Specify a $min value to specify the inclusive lower bound for a specific index in order to constrain the results of find(). The $min specifies the lower bound for all keys of a specific index in order.
+   */
+  min(min: Document): this {
+    this.throwIfInitialized();
+    this.findOptions.min = min;
+    return this;
+  }
+
+  /**
+   * Set the cursor max
+   *
+   * @param max - Specify a $max value to specify the exclusive upper bound for a specific index in order to constrain the results of find(). The $max specifies the upper bound for all keys of a specific index in order.
+   */
+  max(max: Document): this {
+    this.throwIfInitialized();
+    this.findOptions.max = max;
+    return this;
+  }
+
+  /**
+   * Set the cursor returnKey.
+   * If set to true, modifies the cursor to only return the index field or fields for the results of the query, rather than documents.
+   * If set to true and the query does not use an index to perform the read operation, the returned documents will not contain any fields.
+   *
+   * @param value - the returnKey value.
+   */
+  returnKey(value: boolean): this {
+    this.throwIfInitialized();
+    this.findOptions.returnKey = value;
+    return this;
+  }
+
+  /**
+   * Modifies the output of a query by adding a field $recordId to matching documents. $recordId is the internal key which uniquely identifies a document in a collection.
+   *
+   * @param value - The $showDiskLoc option has now been deprecated and replaced with the showRecordId field. $showDiskLoc will still be accepted for OP_QUERY stye find.
+   */
+  showRecordId(value: boolean): this {
+    this.throwIfInitialized();
+    this.findOptions.showRecordId = value;
+    return this;
+  }
+
+  /**
+   * Add a query modifier to the cursor query
+   *
+   * @param name - The query modifier (must start with $, such as $orderby etc)
+   * @param value - The modifier value.
+   */
+  addQueryModifier(name: string, value: string | boolean | number | Document): this {
+    this.throwIfInitialized();
+    if (name[0] !== '$') {
+      throw new MongoInvalidArgumentError(`${name} is not a valid query modifier`);
+    }
+
+    // Strip of the $
+    const field = name.substr(1);
+
+    // NOTE: consider some TS magic for this
+    switch (field) {
+      case 'comment':
+        this.findOptions.comment = value as string | Document;
+        break;
+
+      case 'explain':
+        this.findOptions.explain = value as boolean;
+        break;
+
+      case 'hint':
+        this.findOptions.hint = value as string | Document;
+        break;
+
+      case 'max':
+        this.findOptions.max = value as Document;
+        break;
+
+      case 'maxTimeMS':
+        this.findOptions.maxTimeMS = value as number;
+        break;
+
+      case 'min':
+        this.findOptions.min = value as Document;
+        break;
+
+      case 'orderby':
+        this.findOptions.sort = formatSort(value as string | Document);
+        break;
+
+      case 'query':
+        this.cursorFilter = value as Document;
+        break;
+
+      case 'returnKey':
+        this.findOptions.returnKey = value as boolean;
+        break;
+
+      case 'showDiskLoc':
+        this.findOptions.showRecordId = value as boolean;
+        break;
+
+      default:
+        throw new MongoInvalidArgumentError(`Invalid query modifier: ${name}`);
+    }
+
+    return this;
+  }
+
+  /**
+   * Add a comment to the cursor query allowing for tracking the comment in the log.
+   *
+   * @param value - The comment attached to this query.
+   */
+  comment(value: string): this {
+    this.throwIfInitialized();
+    this.findOptions.comment = value;
+    return this;
+  }
+
+  /**
+   * Set a maxAwaitTimeMS on a tailing cursor query to allow to customize the timeout value for the option awaitData (Only supported on MongoDB 3.2 or higher, ignored otherwise)
+   *
+   * @param value - Number of milliseconds to wait before aborting the tailed query.
+   */
+  maxAwaitTimeMS(value: number): this {
+    this.throwIfInitialized();
+    if (typeof value !== 'number') {
+      throw new MongoInvalidArgumentError('Argument for maxAwaitTimeMS must be a number');
+    }
+
+    this.findOptions.maxAwaitTimeMS = value;
+    return this;
+  }
+
+  /**
+   * Set a maxTimeMS on the cursor query, allowing for hard timeout limits on queries (Only supported on MongoDB 2.6 or higher)
+   *
+   * @param value - Number of milliseconds to wait before aborting the query.
+   */
+  override maxTimeMS(value: number): this {
+    this.throwIfInitialized();
+    if (typeof value !== 'number') {
+      throw new MongoInvalidArgumentError('Argument for maxTimeMS must be a number');
+    }
+
+    this.findOptions.maxTimeMS = value;
+    return this;
+  }
+
+  /**
+   * Add a project stage to the aggregation pipeline
+   *
+   * @remarks
+   * In order to strictly type this function you must provide an interface
+   * that represents the effect of your projection on the result documents.
+   *
+   * By default chaining a projection to your cursor changes the returned type to the generic
+   * {@link Document} type.
+   * You should specify a parameterized type to have assertions on your final results.
+   *
+   * @example
+   * ```typescript
+   * // Best way
+   * const docs: FindCursor<{ a: number }> = cursor.project<{ a: number }>({ _id: 0, a: true });
+   * // Flexible way
+   * const docs: FindCursor<Document> = cursor.project({ _id: 0, a: true });
+   * ```
+   *
+   * @remarks
+   *
+   * **Note for Typescript Users:** adding a transform changes the return type of the iteration of this cursor,
+   * it **does not** return a new instance of a cursor. This means when calling project,
+   * you should always assign the result to a new variable in order to get a correctly typed cursor variable.
+   * Take note of the following example:
+   *
+   * @example
+   * ```typescript
+   * const cursor: FindCursor<{ a: number; b: string }> = coll.find();
+   * const projectCursor = cursor.project<{ a: number }>({ _id: 0, a: true });
+   * const aPropOnlyArray: {a: number}[] = await projectCursor.toArray();
+   *
+   * // or always use chaining and save the final cursor
+   *
+   * const cursor = coll.find().project<{ a: string }>({
+   *   _id: 0,
+   *   a: { $convert: { input: '$a', to: 'string' }
+   * }});
+   * ```
+   */
+  project<T extends Document = Document>(value: Document): FindCursor<T> {
+    this.throwIfInitialized();
+    this.findOptions.projection = value;
+    return this as unknown as FindCursor<T>;
+  }
+
+  /**
+   * Sets the sort order of the cursor query.
+   *
+   * @param sort - The key or keys set for the sort.
+   * @param direction - The direction of the sorting (1 or -1).
+   */
+  sort(sort: Sort | string, direction?: SortDirection): this {
+    this.throwIfInitialized();
+    if (this.findOptions.tailable) {
+      throw new MongoTailableCursorError('Tailable cursor does not support sorting');
+    }
+
+    this.findOptions.sort = formatSort(sort, direction);
+    return this;
+  }
+
+  /**
+   * Allows disk use for blocking sort operations exceeding 100MB memory. (MongoDB 3.2 or higher)
+   *
+   * @remarks
+   * {@link https://www.mongodb.com/docs/manual/reference/command/find/#find-cmd-allowdiskuse | find command allowDiskUse documentation}
+   */
+  allowDiskUse(allow = true): this {
+    this.throwIfInitialized();
+
+    if (!this.findOptions.sort) {
+      throw new MongoInvalidArgumentError('Option "allowDiskUse" requires a sort specification');
+    }
+
+    // As of 6.0 the default is true. This allows users to get back to the old behavior.
+    if (!allow) {
+      this.findOptions.allowDiskUse = false;
+      return this;
+    }
+
+    this.findOptions.allowDiskUse = true;
+    return this;
+  }
+
+  /**
+   * Set the collation options for the cursor.
+   *
+   * @param value - The cursor collation options (MongoDB 3.4 or higher) settings for update operation (see 3.4 documentation for available fields).
+   */
+  collation(value: CollationOptions): this {
+    this.throwIfInitialized();
+    this.findOptions.collation = value;
+    return this;
+  }
+
+  /**
+   * Set the limit for the cursor.
+   *
+   * @param value - The limit for the cursor query.
+   */
+  limit(value: number): this {
+    this.throwIfInitialized();
+    if (this.findOptions.tailable) {
+      throw new MongoTailableCursorError('Tailable cursor does not support limit');
+    }
+
+    if (typeof value !== 'number') {
+      throw new MongoInvalidArgumentError('Operation "limit" requires an integer');
+    }
+
+    this.findOptions.limit = value;
+    return this;
+  }
+
+  /**
+   * Set the skip for the cursor.
+   *
+   * @param value - The skip for the cursor query.
+   */
+  skip(value: number): this {
+    this.throwIfInitialized();
+    if (this.findOptions.tailable) {
+      throw new MongoTailableCursorError('Tailable cursor does not support skip');
+    }
+
+    if (typeof value !== 'number') {
+      throw new MongoInvalidArgumentError('Operation "skip" requires an integer');
+    }
+
+    this.findOptions.skip = value;
+    return this;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cursor/list_collections_cursor.ts b/backend/node_modules/mongodb/src/cursor/list_collections_cursor.ts
new file mode 100644
index 0000000..9b69de1
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cursor/list_collections_cursor.ts
@@ -0,0 +1,48 @@
+import type { Document } from '../bson';
+import type { Db } from '../db';
+import { executeOperation } from '../operations/execute_operation';
+import {
+  type CollectionInfo,
+  ListCollectionsOperation,
+  type ListCollectionsOptions
+} from '../operations/list_collections';
+import type { ClientSession } from '../sessions';
+import { AbstractCursor, type InitialCursorResponse } from './abstract_cursor';
+
+/** @public */
+export class ListCollectionsCursor<
+  T extends Pick<CollectionInfo, 'name' | 'type'> | CollectionInfo =
+    | Pick<CollectionInfo, 'name' | 'type'>
+    | CollectionInfo
+> extends AbstractCursor<T> {
+  parent: Db;
+  filter: Document;
+  options?: ListCollectionsOptions;
+
+  constructor(db: Db, filter: Document, options?: ListCollectionsOptions) {
+    super(db.client, db.s.namespace, options);
+    this.parent = db;
+    this.filter = filter;
+    this.options = options;
+  }
+
+  clone(): ListCollectionsCursor<T> {
+    return new ListCollectionsCursor(this.parent, this.filter, {
+      ...this.options,
+      ...this.cursorOptions
+    });
+  }
+
+  /** @internal */
+  async _initialize(session: ClientSession | undefined): Promise<InitialCursorResponse> {
+    const operation = new ListCollectionsOperation(this.parent, this.filter, {
+      ...this.cursorOptions,
+      ...this.options,
+      session
+    });
+
+    const response = await executeOperation(this.parent.client, operation, this.timeoutContext);
+
+    return { server: operation.server, session, response };
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cursor/list_indexes_cursor.ts b/backend/node_modules/mongodb/src/cursor/list_indexes_cursor.ts
new file mode 100644
index 0000000..0f768f3
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cursor/list_indexes_cursor.ts
@@ -0,0 +1,37 @@
+import type { Collection } from '../collection';
+import { executeOperation } from '../operations/execute_operation';
+import { ListIndexesOperation, type ListIndexesOptions } from '../operations/indexes';
+import type { ClientSession } from '../sessions';
+import { AbstractCursor, type InitialCursorResponse } from './abstract_cursor';
+
+/** @public */
+export class ListIndexesCursor extends AbstractCursor {
+  parent: Collection;
+  options?: ListIndexesOptions;
+
+  constructor(collection: Collection, options?: ListIndexesOptions) {
+    super(collection.client, collection.s.namespace, options);
+    this.parent = collection;
+    this.options = options;
+  }
+
+  clone(): ListIndexesCursor {
+    return new ListIndexesCursor(this.parent, {
+      ...this.options,
+      ...this.cursorOptions
+    });
+  }
+
+  /** @internal */
+  async _initialize(session: ClientSession | undefined): Promise<InitialCursorResponse> {
+    const operation = new ListIndexesOperation(this.parent, {
+      ...this.cursorOptions,
+      ...this.options,
+      session
+    });
+
+    const response = await executeOperation(this.parent.client, operation, this.timeoutContext);
+
+    return { server: operation.server, session, response };
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cursor/list_search_indexes_cursor.ts b/backend/node_modules/mongodb/src/cursor/list_search_indexes_cursor.ts
new file mode 100644
index 0000000..cfe1358
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cursor/list_search_indexes_cursor.ts
@@ -0,0 +1,20 @@
+import type { Collection } from '../collection';
+import type { AggregateOptions } from '../operations/aggregate';
+import { AggregationCursor } from './aggregation_cursor';
+
+/** @public */
+export type ListSearchIndexesOptions = Omit<AggregateOptions, 'readConcern' | 'writeConcern'>;
+
+/** @public */
+export class ListSearchIndexesCursor extends AggregationCursor<{ name: string }> {
+  /** @internal */
+  constructor(
+    { fullNamespace: ns, client }: Collection,
+    name: string | null,
+    options: ListSearchIndexesOptions = {}
+  ) {
+    const pipeline =
+      name == null ? [{ $listSearchIndexes: {} }] : [{ $listSearchIndexes: { name } }];
+    super(client, ns, pipeline, options);
+  }
+}
diff --git a/backend/node_modules/mongodb/src/cursor/run_command_cursor.ts b/backend/node_modules/mongodb/src/cursor/run_command_cursor.ts
new file mode 100644
index 0000000..d5b90ee
--- /dev/null
+++ b/backend/node_modules/mongodb/src/cursor/run_command_cursor.ts
@@ -0,0 +1,173 @@
+import type { BSONSerializeOptions, Document } from '../bson';
+import { CursorResponse } from '../cmap/wire_protocol/responses';
+import type { Db } from '../db';
+import { MongoAPIError } from '../error';
+import { executeOperation } from '../operations/execute_operation';
+import { GetMoreOperation } from '../operations/get_more';
+import { RunCommandOperation } from '../operations/run_command';
+import type { ReadConcernLike } from '../read_concern';
+import type { ReadPreferenceLike } from '../read_preference';
+import type { ClientSession } from '../sessions';
+import { ns } from '../utils';
+import {
+  AbstractCursor,
+  type CursorTimeoutMode,
+  type InitialCursorResponse
+} from './abstract_cursor';
+
+/** @public */
+export type RunCursorCommandOptions = {
+  readPreference?: ReadPreferenceLike;
+  session?: ClientSession;
+  /**
+   * @experimental
+   * Specifies the time an operation will run until it throws a timeout error. Note that if
+   * `maxTimeMS` is provided in the command in addition to setting `timeoutMS` in the options, then
+   * the original value of `maxTimeMS` will be overwritten.
+   */
+  timeoutMS?: number;
+  /**
+   * @public
+   * @experimental
+   * Specifies how `timeoutMS` is applied to the cursor. Can be either `'cursorLifeTime'` or `'iteration'`
+   * When set to `'iteration'`, the deadline specified by `timeoutMS` applies to each call of
+   * `cursor.next()`.
+   * When set to `'cursorLifetime'`, the deadline applies to the life of the entire cursor.
+   *
+   * Depending on the type of cursor being used, this option has different default values.
+   * For non-tailable cursors, this value defaults to `'cursorLifetime'`
+   * For tailable cursors, this value defaults to `'iteration'` since tailable cursors, by
+   * definition can have an arbitrarily long lifetime.
+   *
+   * @example
+   * ```ts
+   * const cursor = collection.find({}, {timeoutMS: 100, timeoutMode: 'iteration'});
+   * for await (const doc of cursor) {
+   *  // process doc
+   *  // This will throw a timeout error if any of the iterator's `next()` calls takes more than 100ms, but
+   *  // will continue to iterate successfully otherwise, regardless of the number of batches.
+   * }
+   * ```
+   *
+   * @example
+   * ```ts
+   * const cursor = collection.find({}, { timeoutMS: 1000, timeoutMode: 'cursorLifetime' });
+   * const docs = await cursor.toArray(); // This entire line will throw a timeout error if all batches are not fetched and returned within 1000ms.
+   * ```
+   */
+  timeoutMode?: CursorTimeoutMode;
+  tailable?: boolean;
+  awaitData?: boolean;
+} & BSONSerializeOptions;
+
+/** @public */
+export class RunCommandCursor extends AbstractCursor {
+  public readonly command: Readonly<Record<string, any>>;
+  public readonly getMoreOptions: {
+    comment?: any;
+    maxAwaitTimeMS?: number;
+    batchSize?: number;
+  } = {};
+
+  /**
+   * Controls the `getMore.comment` field
+   * @param comment - any BSON value
+   */
+  public setComment(comment: any): this {
+    this.getMoreOptions.comment = comment;
+    return this;
+  }
+
+  /**
+   * Controls the `getMore.maxTimeMS` field. Only valid when cursor is tailable await
+   * @param maxTimeMS - the number of milliseconds to wait for new data
+   */
+  public setMaxTimeMS(maxTimeMS: number): this {
+    this.getMoreOptions.maxAwaitTimeMS = maxTimeMS;
+    return this;
+  }
+
+  /**
+   * Controls the `getMore.batchSize` field
+   * @param batchSize - the number documents to return in the `nextBatch`
+   */
+  public setBatchSize(batchSize: number): this {
+    this.getMoreOptions.batchSize = batchSize;
+    return this;
+  }
+
+  /** Unsupported for RunCommandCursor */
+  public override clone(): never {
+    throw new MongoAPIError('Clone not supported, create a new cursor with db.runCursorCommand');
+  }
+
+  /** Unsupported for RunCommandCursor: readConcern must be configured directly on command document */
+  public override withReadConcern(_: ReadConcernLike): never {
+    throw new MongoAPIError(
+      'RunCommandCursor does not support readConcern it must be attached to the command being run'
+    );
+  }
+
+  /** Unsupported for RunCommandCursor: various cursor flags must be configured directly on command document */
+  public override addCursorFlag(_: string, __: boolean): never {
+    throw new MongoAPIError(
+      'RunCommandCursor does not support cursor flags, they must be attached to the command being run'
+    );
+  }
+
+  /**
+   * Unsupported for RunCommandCursor: maxTimeMS must be configured directly on command document
+   */
+  public override maxTimeMS(_: number): never {
+    throw new MongoAPIError(
+      'maxTimeMS must be configured on the command document directly, to configure getMore.maxTimeMS use cursor.setMaxTimeMS()'
+    );
+  }
+
+  /** Unsupported for RunCommandCursor: batchSize must be configured directly on command document */
+  public override batchSize(_: number): never {
+    throw new MongoAPIError(
+      'batchSize must be configured on the command document directly, to configure getMore.batchSize use cursor.setBatchSize()'
+    );
+  }
+
+  /** @internal */
+  private db: Db;
+
+  /** @internal */
+  constructor(db: Db, command: Document, options: RunCursorCommandOptions = {}) {
+    super(db.client, ns(db.namespace), options);
+    this.db = db;
+    this.command = Object.freeze({ ...command });
+  }
+
+  /** @internal */
+  protected async _initialize(session: ClientSession): Promise<InitialCursorResponse> {
+    const operation = new RunCommandOperation<CursorResponse>(this.db, this.command, {
+      ...this.cursorOptions,
+      session: session,
+      readPreference: this.cursorOptions.readPreference,
+      responseType: CursorResponse
+    });
+
+    const response = await executeOperation(this.client, operation, this.timeoutContext);
+
+    return {
+      server: operation.server,
+      session,
+      response
+    };
+  }
+
+  /** @internal */
+  override async getMore(_batchSize: number): Promise<CursorResponse> {
+    // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+    const getMoreOperation = new GetMoreOperation(this.namespace, this.id!, this.server!, {
+      ...this.cursorOptions,
+      session: this.session,
+      ...this.getMoreOptions
+    });
+
+    return await executeOperation(this.client, getMoreOperation, this.timeoutContext);
+  }
+}
diff --git a/backend/node_modules/mongodb/src/db.ts b/backend/node_modules/mongodb/src/db.ts
new file mode 100644
index 0000000..121d6fc
--- /dev/null
+++ b/backend/node_modules/mongodb/src/db.ts
@@ -0,0 +1,618 @@
+import { Admin } from './admin';
+import { type BSONSerializeOptions, type Document, resolveBSONOptions } from './bson';
+import { ChangeStream, type ChangeStreamDocument, type ChangeStreamOptions } from './change_stream';
+import { Collection, type CollectionOptions } from './collection';
+import * as CONSTANTS from './constants';
+import { AggregationCursor } from './cursor/aggregation_cursor';
+import { ListCollectionsCursor } from './cursor/list_collections_cursor';
+import { RunCommandCursor, type RunCursorCommandOptions } from './cursor/run_command_cursor';
+import { MongoInvalidArgumentError } from './error';
+import type { MongoClient, PkFactory } from './mongo_client';
+import type { TODO_NODE_3286 } from './mongo_types';
+import type { AggregateOptions } from './operations/aggregate';
+import { CollectionsOperation } from './operations/collections';
+import {
+  CreateCollectionOperation,
+  type CreateCollectionOptions
+} from './operations/create_collection';
+import {
+  DropCollectionOperation,
+  type DropCollectionOptions,
+  DropDatabaseOperation,
+  type DropDatabaseOptions
+} from './operations/drop';
+import { executeOperation } from './operations/execute_operation';
+import {
+  CreateIndexesOperation,
+  type CreateIndexesOptions,
+  type IndexDescriptionCompact,
+  type IndexDescriptionInfo,
+  type IndexInformationOptions,
+  type IndexSpecification
+} from './operations/indexes';
+import type { CollectionInfo, ListCollectionsOptions } from './operations/list_collections';
+import { ProfilingLevelOperation, type ProfilingLevelOptions } from './operations/profiling_level';
+import { RemoveUserOperation, type RemoveUserOptions } from './operations/remove_user';
+import { RenameOperation, type RenameOptions } from './operations/rename';
+import { RunCommandOperation, type RunCommandOptions } from './operations/run_command';
+import {
+  type ProfilingLevel,
+  SetProfilingLevelOperation,
+  type SetProfilingLevelOptions
+} from './operations/set_profiling_level';
+import { DbStatsOperation, type DbStatsOptions } from './operations/stats';
+import { ReadConcern } from './read_concern';
+import { ReadPreference, type ReadPreferenceLike } from './read_preference';
+import { DEFAULT_PK_FACTORY, filterOptions, MongoDBNamespace, resolveOptions } from './utils';
+import { WriteConcern, type WriteConcernOptions } from './write_concern';
+
+// Allowed parameters
+const DB_OPTIONS_ALLOW_LIST = [
+  'writeConcern',
+  'readPreference',
+  'readPreferenceTags',
+  'native_parser',
+  'forceServerObjectId',
+  'pkFactory',
+  'serializeFunctions',
+  'raw',
+  'authSource',
+  'ignoreUndefined',
+  'readConcern',
+  'retryMiliSeconds',
+  'numberOfRetries',
+  'useBigInt64',
+  'promoteBuffers',
+  'promoteLongs',
+  'bsonRegExp',
+  'enableUtf8Validation',
+  'promoteValues',
+  'compression',
+  'retryWrites',
+  'timeoutMS'
+];
+
+/** @internal */
+export interface DbPrivate {
+  options?: DbOptions;
+  readPreference?: ReadPreference;
+  pkFactory: PkFactory;
+  readConcern?: ReadConcern;
+  bsonOptions: BSONSerializeOptions;
+  writeConcern?: WriteConcern;
+  namespace: MongoDBNamespace;
+}
+
+/** @public */
+export interface DbOptions extends BSONSerializeOptions, WriteConcernOptions {
+  /** If the database authentication is dependent on another databaseName. */
+  authSource?: string;
+  /** Force server to assign _id values instead of driver. */
+  forceServerObjectId?: boolean;
+  /** The preferred read preference (ReadPreference.PRIMARY, ReadPreference.PRIMARY_PREFERRED, ReadPreference.SECONDARY, ReadPreference.SECONDARY_PREFERRED, ReadPreference.NEAREST). */
+  readPreference?: ReadPreferenceLike;
+  /** A primary key factory object for generation of custom _id keys. */
+  pkFactory?: PkFactory;
+  /** Specify a read concern for the collection. (only MongoDB 3.2 or higher supported) */
+  readConcern?: ReadConcern;
+  /** Should retry failed writes */
+  retryWrites?: boolean;
+  /**
+   * @experimental
+   * Specifies the time an operation will run until it throws a timeout error
+   */
+  timeoutMS?: number;
+}
+
+/**
+ * The **Db** class is a class that represents a MongoDB Database.
+ * @public
+ *
+ * @example
+ * ```ts
+ * import { MongoClient } from 'mongodb';
+ *
+ * interface Pet {
+ *   name: string;
+ *   kind: 'dog' | 'cat' | 'fish';
+ * }
+ *
+ * const client = new MongoClient('mongodb://localhost:27017');
+ * const db = client.db();
+ *
+ * // Create a collection that validates our union
+ * await db.createCollection<Pet>('pets', {
+ *   validator: { $expr: { $in: ['$kind', ['dog', 'cat', 'fish']] } }
+ * })
+ * ```
+ */
+export class Db {
+  /** @internal */
+  s: DbPrivate;
+
+  /** @internal */
+  readonly client: MongoClient;
+
+  public static SYSTEM_NAMESPACE_COLLECTION = CONSTANTS.SYSTEM_NAMESPACE_COLLECTION;
+  public static SYSTEM_INDEX_COLLECTION = CONSTANTS.SYSTEM_INDEX_COLLECTION;
+  public static SYSTEM_PROFILE_COLLECTION = CONSTANTS.SYSTEM_PROFILE_COLLECTION;
+  public static SYSTEM_USER_COLLECTION = CONSTANTS.SYSTEM_USER_COLLECTION;
+  public static SYSTEM_COMMAND_COLLECTION = CONSTANTS.SYSTEM_COMMAND_COLLECTION;
+  public static SYSTEM_JS_COLLECTION = CONSTANTS.SYSTEM_JS_COLLECTION;
+
+  /**
+   * Creates a new Db instance.
+   *
+   * Db name cannot contain a dot, the server may apply more restrictions when an operation is run.
+   *
+   * @param client - The MongoClient for the database.
+   * @param databaseName - The name of the database this instance represents.
+   * @param options - Optional settings for Db construction.
+   */
+  constructor(client: MongoClient, databaseName: string, options?: DbOptions) {
+    options = options ?? {};
+
+    // Filter the options
+    options = filterOptions(options, DB_OPTIONS_ALLOW_LIST);
+
+    // Ensure there are no dots in database name
+    if (typeof databaseName === 'string' && databaseName.includes('.')) {
+      throw new MongoInvalidArgumentError(`Database names cannot contain the character '.'`);
+    }
+
+    // Internal state of the db object
+    this.s = {
+      // Options
+      options,
+      // Unpack read preference
+      readPreference: ReadPreference.fromOptions(options),
+      // Merge bson options
+      bsonOptions: resolveBSONOptions(options, client),
+      // Set up the primary key factory or fallback to ObjectId
+      pkFactory: options?.pkFactory ?? DEFAULT_PK_FACTORY,
+      // ReadConcern
+      readConcern: ReadConcern.fromOptions(options),
+      writeConcern: WriteConcern.fromOptions(options),
+      // Namespace
+      namespace: new MongoDBNamespace(databaseName)
+    };
+
+    this.client = client;
+  }
+
+  get databaseName(): string {
+    return this.s.namespace.db;
+  }
+
+  // Options
+  get options(): DbOptions | undefined {
+    return this.s.options;
+  }
+
+  /**
+   * Check if a secondary can be used (because the read preference is *not* set to primary)
+   */
+  get secondaryOk(): boolean {
+    return this.s.readPreference?.preference !== 'primary' || false;
+  }
+
+  get readConcern(): ReadConcern | undefined {
+    return this.s.readConcern;
+  }
+
+  /**
+   * The current readPreference of the Db. If not explicitly defined for
+   * this Db, will be inherited from the parent MongoClient
+   */
+  get readPreference(): ReadPreference {
+    if (this.s.readPreference == null) {
+      return this.client.readPreference;
+    }
+
+    return this.s.readPreference;
+  }
+
+  get bsonOptions(): BSONSerializeOptions {
+    return this.s.bsonOptions;
+  }
+
+  // get the write Concern
+  get writeConcern(): WriteConcern | undefined {
+    return this.s.writeConcern;
+  }
+
+  get namespace(): string {
+    return this.s.namespace.toString();
+  }
+
+  public get timeoutMS(): number | undefined {
+    return this.s.options?.timeoutMS;
+  }
+
+  /**
+   * Create a new collection on a server with the specified options. Use this to create capped collections.
+   * More information about command options available at https://www.mongodb.com/docs/manual/reference/command/create/
+   *
+   * Collection namespace validation is performed server-side.
+   *
+   * @param name - The name of the collection to create
+   * @param options - Optional settings for the command
+   */
+  async createCollection<TSchema extends Document = Document>(
+    name: string,
+    options?: CreateCollectionOptions
+  ): Promise<Collection<TSchema>> {
+    return await executeOperation(
+      this.client,
+      new CreateCollectionOperation(this, name, resolveOptions(this, options)) as TODO_NODE_3286
+    );
+  }
+
+  /**
+   * Execute a command
+   *
+   * @remarks
+   * This command does not inherit options from the MongoClient.
+   *
+   * The driver will ensure the following fields are attached to the command sent to the server:
+   * - `lsid` - sourced from an implicit session or options.session
+   * - `$readPreference` - defaults to primary or can be configured by options.readPreference
+   * - `$db` - sourced from the name of this database
+   *
+   * If the client has a serverApi setting:
+   * - `apiVersion`
+   * - `apiStrict`
+   * - `apiDeprecationErrors`
+   *
+   * When in a transaction:
+   * - `readConcern` - sourced from readConcern set on the TransactionOptions
+   * - `writeConcern` - sourced from writeConcern set on the TransactionOptions
+   *
+   * Attaching any of the above fields to the command will have no effect as the driver will overwrite the value.
+   *
+   * @param command - The command to run
+   * @param options - Optional settings for the command
+   */
+  async command(command: Document, options?: RunCommandOptions): Promise<Document> {
+    // Intentionally, we do not inherit options from parent for this operation.
+    return await executeOperation(
+      this.client,
+      new RunCommandOperation(
+        this,
+        command,
+        resolveOptions(undefined, {
+          ...resolveBSONOptions(options),
+          timeoutMS: options?.timeoutMS ?? this.timeoutMS,
+          session: options?.session,
+          readPreference: options?.readPreference
+        })
+      )
+    );
+  }
+
+  /**
+   * Execute an aggregation framework pipeline against the database.
+   *
+   * @param pipeline - An array of aggregation stages to be executed
+   * @param options - Optional settings for the command
+   */
+  aggregate<T extends Document = Document>(
+    pipeline: Document[] = [],
+    options?: AggregateOptions
+  ): AggregationCursor<T> {
+    return new AggregationCursor(
+      this.client,
+      this.s.namespace,
+      pipeline,
+      resolveOptions(this, options)
+    );
+  }
+
+  /** Return the Admin db instance */
+  admin(): Admin {
+    return new Admin(this);
+  }
+
+  /**
+   * Returns a reference to a MongoDB Collection. If it does not exist it will be created implicitly.
+   *
+   * Collection namespace validation is performed server-side.
+   *
+   * @param name - the collection name we wish to access.
+   * @returns return the new Collection instance
+   */
+  collection<TSchema extends Document = Document>(
+    name: string,
+    options: CollectionOptions = {}
+  ): Collection<TSchema> {
+    if (typeof options === 'function') {
+      throw new MongoInvalidArgumentError('The callback form of this helper has been removed.');
+    }
+    return new Collection<TSchema>(this, name, resolveOptions(this, options));
+  }
+
+  /**
+   * Get all the db statistics.
+   *
+   * @param options - Optional settings for the command
+   */
+  async stats(options?: DbStatsOptions): Promise<Document> {
+    return await executeOperation(
+      this.client,
+      new DbStatsOperation(this, resolveOptions(this, options))
+    );
+  }
+
+  /**
+   * List all collections of this database with optional filter
+   *
+   * @param filter - Query to filter collections by
+   * @param options - Optional settings for the command
+   */
+  listCollections(
+    filter: Document,
+    options: Exclude<ListCollectionsOptions, 'nameOnly'> & { nameOnly: true }
+  ): ListCollectionsCursor<Pick<CollectionInfo, 'name' | 'type'>>;
+  listCollections(
+    filter: Document,
+    options: Exclude<ListCollectionsOptions, 'nameOnly'> & { nameOnly: false }
+  ): ListCollectionsCursor<CollectionInfo>;
+  listCollections<
+    T extends Pick<CollectionInfo, 'name' | 'type'> | CollectionInfo =
+      | Pick<CollectionInfo, 'name' | 'type'>
+      | CollectionInfo
+  >(filter?: Document, options?: ListCollectionsOptions): ListCollectionsCursor<T>;
+  listCollections<
+    T extends Pick<CollectionInfo, 'name' | 'type'> | CollectionInfo =
+      | Pick<CollectionInfo, 'name' | 'type'>
+      | CollectionInfo
+  >(filter: Document = {}, options: ListCollectionsOptions = {}): ListCollectionsCursor<T> {
+    return new ListCollectionsCursor<T>(this, filter, resolveOptions(this, options));
+  }
+
+  /**
+   * Rename a collection.
+   *
+   * @remarks
+   * This operation does not inherit options from the MongoClient.
+   *
+   * @param fromCollection - Name of current collection to rename
+   * @param toCollection - New name of of the collection
+   * @param options - Optional settings for the command
+   */
+  async renameCollection<TSchema extends Document = Document>(
+    fromCollection: string,
+    toCollection: string,
+    options?: RenameOptions
+  ): Promise<Collection<TSchema>> {
+    // Intentionally, we do not inherit options from parent for this operation.
+    return await executeOperation(
+      this.client,
+      new RenameOperation(
+        this.collection<TSchema>(fromCollection) as TODO_NODE_3286,
+        toCollection,
+        resolveOptions(undefined, {
+          ...options,
+          new_collection: true,
+          readPreference: ReadPreference.primary
+        })
+      ) as TODO_NODE_3286
+    );
+  }
+
+  /**
+   * Drop a collection from the database, removing it permanently. New accesses will create a new collection.
+   *
+   * @param name - Name of collection to drop
+   * @param options - Optional settings for the command
+   */
+  async dropCollection(name: string, options?: DropCollectionOptions): Promise<boolean> {
+    return await executeOperation(
+      this.client,
+      new DropCollectionOperation(this, name, resolveOptions(this, options))
+    );
+  }
+
+  /**
+   * Drop a database, removing it permanently from the server.
+   *
+   * @param options - Optional settings for the command
+   */
+  async dropDatabase(options?: DropDatabaseOptions): Promise<boolean> {
+    return await executeOperation(
+      this.client,
+      new DropDatabaseOperation(this, resolveOptions(this, options))
+    );
+  }
+
+  /**
+   * Fetch all collections for the current db.
+   *
+   * @param options - Optional settings for the command
+   */
+  async collections(options?: ListCollectionsOptions): Promise<Collection[]> {
+    return await executeOperation(
+      this.client,
+      new CollectionsOperation(this, resolveOptions(this, options))
+    );
+  }
+
+  /**
+   * Creates an index on the db and collection.
+   *
+   * @param name - Name of the collection to create the index on.
+   * @param indexSpec - Specify the field to index, or an index specification
+   * @param options - Optional settings for the command
+   */
+  async createIndex(
+    name: string,
+    indexSpec: IndexSpecification,
+    options?: CreateIndexesOptions
+  ): Promise<string> {
+    const indexes = await executeOperation(
+      this.client,
+      CreateIndexesOperation.fromIndexSpecification(this, name, indexSpec, options)
+    );
+    return indexes[0];
+  }
+
+  /**
+   * Remove a user from a database
+   *
+   * @param username - The username to remove
+   * @param options - Optional settings for the command
+   */
+  async removeUser(username: string, options?: RemoveUserOptions): Promise<boolean> {
+    return await executeOperation(
+      this.client,
+      new RemoveUserOperation(this, username, resolveOptions(this, options))
+    );
+  }
+
+  /**
+   * Set the current profiling level of MongoDB
+   *
+   * @param level - The new profiling level (off, slow_only, all).
+   * @param options - Optional settings for the command
+   */
+  async setProfilingLevel(
+    level: ProfilingLevel,
+    options?: SetProfilingLevelOptions
+  ): Promise<ProfilingLevel> {
+    return await executeOperation(
+      this.client,
+      new SetProfilingLevelOperation(this, level, resolveOptions(this, options))
+    );
+  }
+
+  /**
+   * Retrieve the current profiling Level for MongoDB
+   *
+   * @param options - Optional settings for the command
+   */
+  async profilingLevel(options?: ProfilingLevelOptions): Promise<string> {
+    return await executeOperation(
+      this.client,
+      new ProfilingLevelOperation(this, resolveOptions(this, options))
+    );
+  }
+
+  /**
+   * Retrieves this collections index info.
+   *
+   * @param name - The name of the collection.
+   * @param options - Optional settings for the command
+   */
+  indexInformation(
+    name: string,
+    options: IndexInformationOptions & { full: true }
+  ): Promise<IndexDescriptionInfo[]>;
+  indexInformation(
+    name: string,
+    options: IndexInformationOptions & { full?: false }
+  ): Promise<IndexDescriptionCompact>;
+  indexInformation(
+    name: string,
+    options: IndexInformationOptions
+  ): Promise<IndexDescriptionCompact | IndexDescriptionInfo[]>;
+  indexInformation(name: string): Promise<IndexDescriptionCompact>;
+  async indexInformation(
+    name: string,
+    options?: IndexInformationOptions
+  ): Promise<IndexDescriptionCompact | IndexDescriptionInfo[]> {
+    return await this.collection(name).indexInformation(resolveOptions(this, options));
+  }
+
+  /**
+   * Create a new Change Stream, watching for new changes (insertions, updates,
+   * replacements, deletions, and invalidations) in this database. Will ignore all
+   * changes to system collections.
+   *
+   * @remarks
+   * watch() accepts two generic arguments for distinct use cases:
+   * - The first is to provide the schema that may be defined for all the collections within this database
+   * - The second is to override the shape of the change stream document entirely, if it is not provided the type will default to ChangeStreamDocument of the first argument
+   *
+   * @remarks
+   * When `timeoutMS` is configured for a change stream, it will have different behaviour depending
+   * on whether the change stream is in iterator mode or emitter mode. In both cases, a change
+   * stream will time out if it does not receive a change event within `timeoutMS` of the last change
+   * event.
+   *
+   * Note that if a change stream is consistently timing out when watching a collection, database or
+   * client that is being changed, then this may be due to the server timing out before it can finish
+   * processing the existing oplog. To address this, restart the change stream with a higher
+   * `timeoutMS`.
+   *
+   * If the change stream times out the initial aggregate operation to establish the change stream on
+   * the server, then the client will close the change stream. If the getMore calls to the server
+   * time out, then the change stream will be left open, but will throw a MongoOperationTimeoutError
+   * when in iterator mode and emit an error event that returns a MongoOperationTimeoutError in
+   * emitter mode.
+   *
+   * To determine whether or not the change stream is still open following a timeout, check the
+   * {@link ChangeStream.closed} getter.
+   *
+   * @example
+   * In iterator mode, if a next() call throws a timeout error, it will attempt to resume the change stream.
+   * The next call can just be retried after this succeeds.
+   * ```ts
+   * const changeStream = collection.watch([], { timeoutMS: 100 });
+   * try {
+   *     await changeStream.next();
+   * } catch (e) {
+   *     if (e instanceof MongoOperationTimeoutError && !changeStream.closed) {
+   *       await changeStream.next();
+   *     }
+   *     throw e;
+   * }
+   * ```
+   *
+   * @example
+   * In emitter mode, if the change stream goes `timeoutMS` without emitting a change event, it will
+   * emit an error event that returns a MongoOperationTimeoutError, but will not close the change
+   * stream unless the resume attempt fails. There is no need to re-establish change listeners as
+   * this will automatically continue emitting change events once the resume attempt completes.
+   *
+   * ```ts
+   * const changeStream = collection.watch([], { timeoutMS: 100 });
+   * changeStream.on('change', console.log);
+   * changeStream.on('error', e => {
+   *     if (e instanceof MongoOperationTimeoutError && !changeStream.closed) {
+   *         // do nothing
+   *     } else {
+   *         changeStream.close();
+   *     }
+   * });
+   * ```
+   * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents. This allows for filtering (using $match) and manipulating the change stream documents.
+   * @param options - Optional settings for the command
+   * @typeParam TSchema - Type of the data being detected by the change stream
+   * @typeParam TChange - Type of the whole change stream document emitted
+   */
+  watch<
+    TSchema extends Document = Document,
+    TChange extends Document = ChangeStreamDocument<TSchema>
+  >(pipeline: Document[] = [], options: ChangeStreamOptions = {}): ChangeStream<TSchema, TChange> {
+    // Allow optionally not specifying a pipeline
+    if (!Array.isArray(pipeline)) {
+      options = pipeline;
+      pipeline = [];
+    }
+
+    return new ChangeStream<TSchema, TChange>(this, pipeline, resolveOptions(this, options));
+  }
+
+  /**
+   * A low level cursor API providing basic driver functionality:
+   * - ClientSession management
+   * - ReadPreference for server selection
+   * - Running getMores automatically when a local batch is exhausted
+   *
+   * @param command - The command that will start a cursor on the server.
+   * @param options - Configurations for running the command, bson options will apply to getMores
+   */
+  runCursorCommand(command: Document, options?: RunCursorCommandOptions): RunCommandCursor {
+    return new RunCommandCursor(this, command, options);
+  }
+}
diff --git a/backend/node_modules/mongodb/src/deps.ts b/backend/node_modules/mongodb/src/deps.ts
new file mode 100644
index 0000000..0947ca6
--- /dev/null
+++ b/backend/node_modules/mongodb/src/deps.ts
@@ -0,0 +1,287 @@
+import { type Stream } from './cmap/connect';
+import { MongoMissingDependencyError } from './error';
+import type { Callback } from './utils';
+
+function makeErrorModule(error: any) {
+  const props = error ? { kModuleError: error } : {};
+  return new Proxy(props, {
+    get: (_: any, key: any) => {
+      if (key === 'kModuleError') {
+        return error;
+      }
+      throw error;
+    },
+    set: () => {
+      throw error;
+    }
+  });
+}
+
+export type Kerberos = typeof import('kerberos') | { kModuleError: MongoMissingDependencyError };
+
+export function getKerberos(): Kerberos {
+  let kerberos: Kerberos;
+  try {
+    // Ensure you always wrap an optional require in the try block NODE-3199
+    // eslint-disable-next-line @typescript-eslint/no-require-imports
+    kerberos = require('kerberos');
+  } catch (error) {
+    kerberos = makeErrorModule(
+      new MongoMissingDependencyError(
+        'Optional module `kerberos` not found. Please install it to enable kerberos authentication',
+        { cause: error, dependencyName: 'kerberos' }
+      )
+    );
+  }
+  return kerberos;
+}
+
+export interface KerberosClient {
+  step(challenge: string): Promise<string>;
+  step(challenge: string, callback: Callback<string>): void;
+  wrap(challenge: string, options: { user: string }): Promise<string>;
+  wrap(challenge: string, options: { user: string }, callback: Callback<string>): void;
+  unwrap(challenge: string): Promise<string>;
+  unwrap(challenge: string, callback: Callback<string>): void;
+}
+
+type ZStandardLib = {
+  /**
+   * Compress using zstd.
+   * @param buf - Buffer to be compressed.
+   */
+  compress(buf: Buffer, level?: number): Promise<Buffer>;
+
+  /**
+   * Decompress using zstd.
+   */
+  decompress(buf: Buffer): Promise<Buffer>;
+};
+
+export type ZStandard = ZStandardLib | { kModuleError: MongoMissingDependencyError };
+
+export function getZstdLibrary(): ZStandardLib | { kModuleError: MongoMissingDependencyError } {
+  let ZStandard: ZStandardLib | { kModuleError: MongoMissingDependencyError };
+  try {
+    // eslint-disable-next-line @typescript-eslint/no-require-imports
+    ZStandard = require('@mongodb-js/zstd');
+  } catch (error) {
+    ZStandard = makeErrorModule(
+      new MongoMissingDependencyError(
+        'Optional module `@mongodb-js/zstd` not found. Please install it to enable zstd compression',
+        { cause: error, dependencyName: 'zstd' }
+      )
+    );
+  }
+
+  return ZStandard;
+}
+
+/**
+ * @internal
+ * Copy of the AwsCredentialIdentityProvider interface from [`smithy/types`](https://socket.dev/npm/package/\@smithy/types/files/1.1.1/dist-types/identity/awsCredentialIdentity.d.ts),
+ * the return type of the aws-sdk's `fromNodeProviderChain().provider()`.
+ */
+export interface AWSCredentials {
+  accessKeyId: string;
+  secretAccessKey: string;
+  sessionToken: string;
+  expiration?: Date;
+}
+
+type CredentialProvider = {
+  fromNodeProviderChain(
+    this: void,
+    options: { clientConfig: { region: string } }
+  ): () => Promise<AWSCredentials>;
+  fromNodeProviderChain(this: void): () => Promise<AWSCredentials>;
+};
+
+export function getAwsCredentialProvider():
+  | CredentialProvider
+  | { kModuleError: MongoMissingDependencyError } {
+  try {
+    // Ensure you always wrap an optional require in the try block NODE-3199
+    // eslint-disable-next-line @typescript-eslint/no-require-imports
+    const credentialProvider = require('@aws-sdk/credential-providers');
+    return credentialProvider;
+  } catch (error) {
+    return makeErrorModule(
+      new MongoMissingDependencyError(
+        'Optional module `@aws-sdk/credential-providers` not found.' +
+          ' Please install it to enable getting aws credentials via the official sdk.',
+        { cause: error, dependencyName: '@aws-sdk/credential-providers' }
+      )
+    );
+  }
+}
+
+/** @internal */
+export type GcpMetadata =
+  | typeof import('gcp-metadata')
+  | { kModuleError: MongoMissingDependencyError };
+
+export function getGcpMetadata(): GcpMetadata {
+  try {
+    // Ensure you always wrap an optional require in the try block NODE-3199
+    // eslint-disable-next-line @typescript-eslint/no-require-imports
+    const credentialProvider = require('gcp-metadata');
+    return credentialProvider;
+  } catch (error) {
+    return makeErrorModule(
+      new MongoMissingDependencyError(
+        'Optional module `gcp-metadata` not found.' +
+          ' Please install it to enable getting gcp credentials via the official sdk.',
+        { cause: error, dependencyName: 'gcp-metadata' }
+      )
+    );
+  }
+}
+
+/** @internal */
+export type SnappyLib = {
+  /**
+   * In order to support both we must check the return value of the function
+   * @param buf - Buffer to be compressed
+   */
+  compress(buf: Buffer): Promise<Buffer>;
+
+  /**
+   * In order to support both we must check the return value of the function
+   * @param buf - Buffer to be compressed
+   */
+  uncompress(buf: Buffer, opt: { asBuffer: true }): Promise<Buffer>;
+};
+
+export function getSnappy(): SnappyLib | { kModuleError: MongoMissingDependencyError } {
+  try {
+    // Ensure you always wrap an optional require in the try block NODE-3199
+    // eslint-disable-next-line @typescript-eslint/no-require-imports
+    const value = require('snappy');
+    return value;
+  } catch (error) {
+    const kModuleError = new MongoMissingDependencyError(
+      'Optional module `snappy` not found. Please install it to enable snappy compression',
+      { cause: error, dependencyName: 'snappy' }
+    );
+    return { kModuleError };
+  }
+}
+
+export type SocksLib = {
+  SocksClient: {
+    createConnection(options: {
+      command: 'connect';
+      destination: { host: string; port: number };
+      proxy: {
+        /** host and port are ignored because we pass existing_socket */
+        host: 'iLoveJavaScript';
+        port: 0;
+        type: 5;
+        userId?: string;
+        password?: string;
+      };
+      timeout?: number;
+      /** We always create our own socket, and pass it to this API for proxy negotiation */
+      existing_socket: Stream;
+    }): Promise<{ socket: Stream }>;
+  };
+};
+
+export function getSocks(): SocksLib | { kModuleError: MongoMissingDependencyError } {
+  try {
+    // Ensure you always wrap an optional require in the try block NODE-3199
+    // eslint-disable-next-line @typescript-eslint/no-require-imports
+    const value = require('socks');
+    return value;
+  } catch (error) {
+    const kModuleError = new MongoMissingDependencyError(
+      'Optional module `socks` not found. Please install it to connections over a SOCKS5 proxy',
+      { cause: error, dependencyName: 'socks' }
+    );
+    return { kModuleError };
+  }
+}
+
+interface AWS4 {
+  /**
+   * Created these inline types to better assert future usage of this API
+   * @param options - options for request
+   * @param credentials - AWS credential details, sessionToken should be omitted entirely if its false-y
+   */
+  sign(
+    this: void,
+    options: {
+      path: '/';
+      body: string;
+      host: string;
+      method: 'POST';
+      headers: {
+        'Content-Type': 'application/x-www-form-urlencoded';
+        'Content-Length': number;
+        'X-MongoDB-Server-Nonce': string;
+        'X-MongoDB-GS2-CB-Flag': 'n';
+      };
+      service: string;
+      region: string;
+    },
+    credentials:
+      | {
+          accessKeyId: string;
+          secretAccessKey: string;
+          sessionToken: string;
+        }
+      | {
+          accessKeyId: string;
+          secretAccessKey: string;
+        }
+      | undefined
+  ): {
+    headers: {
+      Authorization: string;
+      'X-Amz-Date': string;
+    };
+  };
+}
+
+export const aws4: AWS4 | { kModuleError: MongoMissingDependencyError } = loadAws4();
+
+function loadAws4() {
+  let aws4: AWS4 | { kModuleError: MongoMissingDependencyError };
+  try {
+    // eslint-disable-next-line @typescript-eslint/no-require-imports
+    aws4 = require('aws4');
+  } catch (error) {
+    aws4 = makeErrorModule(
+      new MongoMissingDependencyError(
+        'Optional module `aws4` not found. Please install it to enable AWS authentication',
+        { cause: error, dependencyName: 'aws4' }
+      )
+    );
+  }
+
+  return aws4;
+}
+
+/** A utility function to get the instance of mongodb-client-encryption, if it exists. */
+export function getMongoDBClientEncryption():
+  | typeof import('mongodb-client-encryption')
+  | { kModuleError: MongoMissingDependencyError } {
+  let mongodbClientEncryption = null;
+
+  try {
+    // NOTE(NODE-3199): Ensure you always wrap an optional require literally in the try block
+    // Cannot be moved to helper utility function, bundlers search and replace the actual require call
+    // in a way that makes this line throw at bundle time, not runtime, catching here will make bundling succeed
+    // eslint-disable-next-line @typescript-eslint/no-require-imports
+    mongodbClientEncryption = require('mongodb-client-encryption');
+  } catch (error) {
+    const kModuleError = new MongoMissingDependencyError(
+      'Optional module `mongodb-client-encryption` not found. Please install it to use auto encryption or ClientEncryption.',
+      { cause: error, dependencyName: 'mongodb-client-encryption' }
+    );
+    return { kModuleError };
+  }
+
+  return mongodbClientEncryption;
+}
diff --git a/backend/node_modules/mongodb/src/encrypter.ts b/backend/node_modules/mongodb/src/encrypter.ts
new file mode 100644
index 0000000..fbcf7c1
--- /dev/null
+++ b/backend/node_modules/mongodb/src/encrypter.ts
@@ -0,0 +1,139 @@
+import { callbackify } from 'util';
+
+import { AutoEncrypter, type AutoEncryptionOptions } from './client-side-encryption/auto_encrypter';
+import { MONGO_CLIENT_EVENTS } from './constants';
+import { getMongoDBClientEncryption } from './deps';
+import { MongoInvalidArgumentError, MongoMissingDependencyError } from './error';
+import { MongoClient, type MongoClientOptions } from './mongo_client';
+import { type Callback } from './utils';
+
+/** @internal */
+const kInternalClient = Symbol('internalClient');
+
+/** @internal */
+export interface EncrypterOptions {
+  autoEncryption: AutoEncryptionOptions;
+  maxPoolSize?: number;
+}
+
+/** @internal */
+export class Encrypter {
+  [kInternalClient]: MongoClient | null;
+  bypassAutoEncryption: boolean;
+  needsConnecting: boolean;
+  autoEncrypter: AutoEncrypter;
+
+  constructor(client: MongoClient, uri: string, options: MongoClientOptions) {
+    if (typeof options.autoEncryption !== 'object') {
+      throw new MongoInvalidArgumentError('Option "autoEncryption" must be specified');
+    }
+    // initialize to null, if we call getInternalClient, we may set this it is important to not overwrite those function calls.
+    this[kInternalClient] = null;
+
+    this.bypassAutoEncryption = !!options.autoEncryption.bypassAutoEncryption;
+    this.needsConnecting = false;
+
+    if (options.maxPoolSize === 0 && options.autoEncryption.keyVaultClient == null) {
+      options.autoEncryption.keyVaultClient = client;
+    } else if (options.autoEncryption.keyVaultClient == null) {
+      options.autoEncryption.keyVaultClient = this.getInternalClient(client, uri, options);
+    }
+
+    if (this.bypassAutoEncryption) {
+      options.autoEncryption.metadataClient = undefined;
+    } else if (options.maxPoolSize === 0) {
+      options.autoEncryption.metadataClient = client;
+    } else {
+      options.autoEncryption.metadataClient = this.getInternalClient(client, uri, options);
+    }
+
+    if (options.proxyHost) {
+      options.autoEncryption.proxyOptions = {
+        proxyHost: options.proxyHost,
+        proxyPort: options.proxyPort,
+        proxyUsername: options.proxyUsername,
+        proxyPassword: options.proxyPassword
+      };
+    }
+
+    this.autoEncrypter = new AutoEncrypter(client, options.autoEncryption);
+  }
+
+  getInternalClient(client: MongoClient, uri: string, options: MongoClientOptions): MongoClient {
+    // TODO(NODE-4144): Remove new variable for type narrowing
+    let internalClient = this[kInternalClient];
+    if (internalClient == null) {
+      const clonedOptions: MongoClientOptions = {};
+
+      for (const key of [
+        ...Object.getOwnPropertyNames(options),
+        ...Object.getOwnPropertySymbols(options)
+      ] as string[]) {
+        if (['autoEncryption', 'minPoolSize', 'servers', 'caseTranslate', 'dbName'].includes(key))
+          continue;
+        Reflect.set(clonedOptions, key, Reflect.get(options, key));
+      }
+
+      clonedOptions.minPoolSize = 0;
+
+      internalClient = new MongoClient(uri, clonedOptions);
+      this[kInternalClient] = internalClient;
+
+      for (const eventName of MONGO_CLIENT_EVENTS) {
+        for (const listener of client.listeners(eventName)) {
+          internalClient.on(eventName, listener);
+        }
+      }
+
+      client.on('newListener', (eventName, listener) => {
+        internalClient?.on(eventName, listener);
+      });
+
+      this.needsConnecting = true;
+    }
+    return internalClient;
+  }
+
+  async connectInternalClient(): Promise<void> {
+    // TODO(NODE-4144): Remove new variable for type narrowing
+    const internalClient = this[kInternalClient];
+    if (this.needsConnecting && internalClient != null) {
+      this.needsConnecting = false;
+      await internalClient.connect();
+    }
+  }
+
+  closeCallback(client: MongoClient, force: boolean, callback: Callback<void>) {
+    callbackify(this.close.bind(this))(client, force, callback);
+  }
+
+  async close(client: MongoClient, force: boolean): Promise<void> {
+    let error;
+    try {
+      await this.autoEncrypter.teardown(force);
+    } catch (autoEncrypterError) {
+      error = autoEncrypterError;
+    }
+    const internalClient = this[kInternalClient];
+    if (internalClient != null && client !== internalClient) {
+      return await internalClient.close(force);
+    }
+    if (error != null) {
+      throw error;
+    }
+  }
+
+  static checkForMongoCrypt(): void {
+    const mongodbClientEncryption = getMongoDBClientEncryption();
+    if ('kModuleError' in mongodbClientEncryption) {
+      throw new MongoMissingDependencyError(
+        'Auto-encryption requested, but the module is not installed. ' +
+          'Please add `mongodb-client-encryption` as a dependency of your project',
+        {
+          cause: mongodbClientEncryption['kModuleError'],
+          dependencyName: 'mongodb-client-encryption'
+        }
+      );
+    }
+  }
+}
diff --git a/backend/node_modules/mongodb/src/error.ts b/backend/node_modules/mongodb/src/error.ts
new file mode 100644
index 0000000..8f0adb0
--- /dev/null
+++ b/backend/node_modules/mongodb/src/error.ts
@@ -0,0 +1,1558 @@
+import type { Document, ObjectId } from './bson';
+import {
+  type ClientBulkWriteError,
+  type ClientBulkWriteResult
+} from './operations/client_bulk_write/common';
+import type { ServerType } from './sdam/common';
+import type { ServerDescription, TopologyVersion } from './sdam/server_description';
+import type { TopologyDescription } from './sdam/topology_description';
+
+/** @public */
+export type AnyError = MongoError | Error;
+
+/** @internal */
+const kErrorLabels = Symbol('errorLabels');
+
+/**
+ * @internal
+ * The legacy error message from the server that indicates the node is not a writable primary
+ * https://github.com/mongodb/specifications/blob/921232976f9913cf17415b5ef937ee772e45e6ae/source/server-discovery-and-monitoring/server-discovery-and-monitoring.md#not-writable-primary-and-node-is-recovering
+ */
+export const LEGACY_NOT_WRITABLE_PRIMARY_ERROR_MESSAGE = new RegExp('not master', 'i');
+
+/**
+ * @internal
+ * The legacy error message from the server that indicates the node is not a primary or secondary
+ * https://github.com/mongodb/specifications/blob/921232976f9913cf17415b5ef937ee772e45e6ae/source/server-discovery-and-monitoring/server-discovery-and-monitoring.md#not-writable-primary-and-node-is-recovering
+ */
+export const LEGACY_NOT_PRIMARY_OR_SECONDARY_ERROR_MESSAGE = new RegExp(
+  'not master or secondary',
+  'i'
+);
+
+/**
+ * @internal
+ * The error message from the server that indicates the node is recovering
+ * https://github.com/mongodb/specifications/blob/921232976f9913cf17415b5ef937ee772e45e6ae/source/server-discovery-and-monitoring/server-discovery-and-monitoring.md#not-writable-primary-and-node-is-recovering
+ */
+export const NODE_IS_RECOVERING_ERROR_MESSAGE = new RegExp('node is recovering', 'i');
+
+/** @internal MongoDB Error Codes */
+export const MONGODB_ERROR_CODES = Object.freeze({
+  HostUnreachable: 6,
+  HostNotFound: 7,
+  AuthenticationFailed: 18,
+  NetworkTimeout: 89,
+  ShutdownInProgress: 91,
+  PrimarySteppedDown: 189,
+  ExceededTimeLimit: 262,
+  SocketException: 9001,
+  NotWritablePrimary: 10107,
+  InterruptedAtShutdown: 11600,
+  InterruptedDueToReplStateChange: 11602,
+  NotPrimaryNoSecondaryOk: 13435,
+  NotPrimaryOrSecondary: 13436,
+  StaleShardVersion: 63,
+  StaleEpoch: 150,
+  StaleConfig: 13388,
+  RetryChangeStream: 234,
+  FailedToSatisfyReadPreference: 133,
+  CursorNotFound: 43,
+  LegacyNotPrimary: 10058,
+  WriteConcernFailed: 64,
+  NamespaceNotFound: 26,
+  IllegalOperation: 20,
+  MaxTimeMSExpired: 50,
+  UnknownReplWriteConcern: 79,
+  UnsatisfiableWriteConcern: 100,
+  Reauthenticate: 391,
+  ReadConcernMajorityNotAvailableYet: 134
+} as const);
+
+// From spec https://github.com/mongodb/specifications/blob/921232976f9913cf17415b5ef937ee772e45e6ae/source/change-streams/change-streams.md#resumable-error
+export const GET_MORE_RESUMABLE_CODES = new Set<number>([
+  MONGODB_ERROR_CODES.HostUnreachable,
+  MONGODB_ERROR_CODES.HostNotFound,
+  MONGODB_ERROR_CODES.NetworkTimeout,
+  MONGODB_ERROR_CODES.ShutdownInProgress,
+  MONGODB_ERROR_CODES.PrimarySteppedDown,
+  MONGODB_ERROR_CODES.ExceededTimeLimit,
+  MONGODB_ERROR_CODES.SocketException,
+  MONGODB_ERROR_CODES.NotWritablePrimary,
+  MONGODB_ERROR_CODES.InterruptedAtShutdown,
+  MONGODB_ERROR_CODES.InterruptedDueToReplStateChange,
+  MONGODB_ERROR_CODES.NotPrimaryNoSecondaryOk,
+  MONGODB_ERROR_CODES.NotPrimaryOrSecondary,
+  MONGODB_ERROR_CODES.StaleShardVersion,
+  MONGODB_ERROR_CODES.StaleEpoch,
+  MONGODB_ERROR_CODES.StaleConfig,
+  MONGODB_ERROR_CODES.RetryChangeStream,
+  MONGODB_ERROR_CODES.FailedToSatisfyReadPreference,
+  MONGODB_ERROR_CODES.CursorNotFound
+]);
+
+/** @public */
+export const MongoErrorLabel = Object.freeze({
+  RetryableWriteError: 'RetryableWriteError',
+  TransientTransactionError: 'TransientTransactionError',
+  UnknownTransactionCommitResult: 'UnknownTransactionCommitResult',
+  ResumableChangeStreamError: 'ResumableChangeStreamError',
+  HandshakeError: 'HandshakeError',
+  ResetPool: 'ResetPool',
+  PoolRequstedRetry: 'PoolRequstedRetry',
+  InterruptInUseConnections: 'InterruptInUseConnections',
+  NoWritesPerformed: 'NoWritesPerformed'
+} as const);
+
+/** @public */
+export type MongoErrorLabel = (typeof MongoErrorLabel)[keyof typeof MongoErrorLabel];
+
+/** @public */
+export interface ErrorDescription extends Document {
+  message?: string;
+  errmsg?: string;
+  $err?: string;
+  errorLabels?: string[];
+  errInfo?: Document;
+}
+
+function isAggregateError(e: unknown): e is Error & { errors: Error[] } {
+  return e != null && typeof e === 'object' && 'errors' in e && Array.isArray(e.errors);
+}
+
+/**
+ * @public
+ * @category Error
+ *
+ * @privateRemarks
+ * mongodb-client-encryption has a dependency on this error, it uses the constructor with a string argument
+ */
+export class MongoError extends Error {
+  /** @internal */
+  [kErrorLabels]: Set<string>;
+  /**
+   * This is a number in MongoServerError and a string in MongoDriverError
+   * @privateRemarks
+   * Define the type override on the subclasses when we can use the override keyword
+   */
+  code?: number | string;
+  topologyVersion?: TopologyVersion;
+  connectionGeneration?: number;
+  override cause?: Error;
+
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string, options?: { cause?: Error }) {
+    super(message, options);
+    this[kErrorLabels] = new Set();
+  }
+
+  /** @internal */
+  static buildErrorMessage(e: unknown): string {
+    if (typeof e === 'string') {
+      return e;
+    }
+    if (isAggregateError(e) && e.message.length === 0) {
+      return e.errors.length === 0
+        ? 'AggregateError has an empty errors array. Please check the `cause` property for more information.'
+        : e.errors.map(({ message }) => message).join(', ');
+    }
+
+    return e != null && typeof e === 'object' && 'message' in e && typeof e.message === 'string'
+      ? e.message
+      : 'empty error message';
+  }
+
+  override get name(): string {
+    return 'MongoError';
+  }
+
+  /** Legacy name for server error responses */
+  get errmsg(): string {
+    return this.message;
+  }
+
+  /**
+   * Checks the error to see if it has an error label
+   *
+   * @param label - The error label to check for
+   * @returns returns true if the error has the provided error label
+   */
+  hasErrorLabel(label: string): boolean {
+    return this[kErrorLabels].has(label);
+  }
+
+  addErrorLabel(label: string): void {
+    this[kErrorLabels].add(label);
+  }
+
+  get errorLabels(): string[] {
+    return Array.from(this[kErrorLabels]);
+  }
+}
+
+/**
+ * An error coming from the mongo server
+ *
+ * @public
+ * @category Error
+ */
+export class MongoServerError extends MongoError {
+  /** Raw error result document returned by server. */
+  errorResponse: ErrorDescription;
+  codeName?: string;
+  writeConcernError?: Document;
+  errInfo?: Document;
+  ok?: number;
+  [key: string]: any;
+
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: ErrorDescription) {
+    super(message.message || message.errmsg || message.$err || 'n/a');
+    if (message.errorLabels) {
+      this[kErrorLabels] = new Set(message.errorLabels);
+    }
+
+    this.errorResponse = message;
+
+    for (const name in message) {
+      if (
+        name !== 'errorLabels' &&
+        name !== 'errmsg' &&
+        name !== 'message' &&
+        name !== 'errorResponse'
+      ) {
+        this[name] = message[name];
+      }
+    }
+  }
+
+  override get name(): string {
+    return 'MongoServerError';
+  }
+}
+
+/**
+ * An error generated by the driver
+ *
+ * @public
+ * @category Error
+ */
+export class MongoDriverError extends MongoError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string, options?: { cause?: Error }) {
+    super(message, options);
+  }
+
+  override get name(): string {
+    return 'MongoDriverError';
+  }
+}
+
+/**
+ * An error generated when the driver API is used incorrectly
+ *
+ * @privateRemarks
+ * Should **never** be directly instantiated
+ *
+ * @public
+ * @category Error
+ */
+
+export class MongoAPIError extends MongoDriverError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string, options?: { cause?: Error }) {
+    super(message, options);
+  }
+
+  override get name(): string {
+    return 'MongoAPIError';
+  }
+}
+
+/**
+ * An error generated when the driver encounters unexpected input
+ * or reaches an unexpected/invalid internal state.
+ *
+ * @privateRemarks
+ * Should **never** be directly instantiated.
+ *
+ * @public
+ * @category Error
+ */
+export class MongoRuntimeError extends MongoDriverError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string, options?: { cause?: Error }) {
+    super(message, options);
+  }
+
+  override get name(): string {
+    return 'MongoRuntimeError';
+  }
+}
+
+/**
+ * An error generated when a primary server is marked stale, never directly thrown
+ *
+ * @public
+ * @category Error
+ */
+export class MongoStalePrimaryError extends MongoRuntimeError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(
+    serverDescription: ServerDescription,
+    maxSetVersion: number | null,
+    maxElectionId: ObjectId | null,
+    options?: { cause?: Error }
+  ) {
+    super(
+      `primary marked stale due to electionId/setVersion mismatch: server setVersion: ${serverDescription.setVersion}, server electionId: ${serverDescription.electionId}, topology setVersion: ${maxSetVersion}, topology electionId: ${maxElectionId}`,
+      options
+    );
+  }
+
+  override get name(): string {
+    return 'MongoStalePrimaryError';
+  }
+}
+
+/**
+ * An error generated when a batch command is re-executed after one of the commands in the batch
+ * has failed
+ *
+ * @public
+ * @category Error
+ */
+export class MongoBatchReExecutionError extends MongoAPIError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message = 'This batch has already been executed, create new batch to execute') {
+    super(message);
+  }
+
+  override get name(): string {
+    return 'MongoBatchReExecutionError';
+  }
+}
+
+/**
+ * An error generated when the driver fails to decompress
+ * data received from the server.
+ *
+ * @public
+ * @category Error
+ */
+export class MongoDecompressionError extends MongoRuntimeError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string) {
+    super(message);
+  }
+
+  override get name(): string {
+    return 'MongoDecompressionError';
+  }
+}
+
+/**
+ * An error thrown when the user attempts to operate on a database or collection through a MongoClient
+ * that has not yet successfully called the "connect" method
+ *
+ * @public
+ * @category Error
+ */
+export class MongoNotConnectedError extends MongoAPIError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string) {
+    super(message);
+  }
+
+  override get name(): string {
+    return 'MongoNotConnectedError';
+  }
+}
+
+/**
+ * An error generated when the user makes a mistake in the usage of transactions.
+ * (e.g. attempting to commit a transaction with a readPreference other than primary)
+ *
+ * @public
+ * @category Error
+ */
+export class MongoTransactionError extends MongoAPIError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string) {
+    super(message);
+  }
+
+  override get name(): string {
+    return 'MongoTransactionError';
+  }
+}
+
+/**
+ * An error generated when the user attempts to operate
+ * on a session that has expired or has been closed.
+ *
+ * @public
+ * @category Error
+ */
+export class MongoExpiredSessionError extends MongoAPIError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message = 'Cannot use a session that has ended') {
+    super(message);
+  }
+
+  override get name(): string {
+    return 'MongoExpiredSessionError';
+  }
+}
+
+/**
+ * A error generated when the user attempts to authenticate
+ * via Kerberos, but fails to connect to the Kerberos client.
+ *
+ * @public
+ * @category Error
+ */
+export class MongoKerberosError extends MongoRuntimeError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string) {
+    super(message);
+  }
+
+  override get name(): string {
+    return 'MongoKerberosError';
+  }
+}
+
+/**
+ * A error generated when the user attempts to authenticate
+ * via AWS, but fails
+ *
+ * @public
+ * @category Error
+ */
+export class MongoAWSError extends MongoRuntimeError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string, options?: { cause?: Error }) {
+    super(message, options);
+  }
+
+  override get name(): string {
+    return 'MongoAWSError';
+  }
+}
+
+/**
+ * A error generated when the user attempts to authenticate
+ * via OIDC callbacks, but fails.
+ *
+ * @public
+ * @category Error
+ */
+export class MongoOIDCError extends MongoRuntimeError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string) {
+    super(message);
+  }
+
+  override get name(): string {
+    return 'MongoOIDCError';
+  }
+}
+
+/**
+ * A error generated when the user attempts to authenticate
+ * via Azure, but fails.
+ *
+ * @public
+ * @category Error
+ */
+export class MongoAzureError extends MongoOIDCError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string) {
+    super(message);
+  }
+
+  override get name(): string {
+    return 'MongoAzureError';
+  }
+}
+
+/**
+ * A error generated when the user attempts to authenticate
+ * via GCP, but fails.
+ *
+ * @public
+ * @category Error
+ */
+export class MongoGCPError extends MongoOIDCError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string) {
+    super(message);
+  }
+
+  override get name(): string {
+    return 'MongoGCPError';
+  }
+}
+
+/**
+ * An error indicating that an error occurred when executing the bulk write.
+ *
+ * @public
+ * @category Error
+ */
+export class MongoClientBulkWriteError extends MongoServerError {
+  /**
+   * Write concern errors that occurred while executing the bulk write. This list may have
+   * multiple items if more than one server command was required to execute the bulk write.
+   */
+  writeConcernErrors: Document[];
+  /**
+   * Errors that occurred during the execution of individual write operations. This map will
+   * contain at most one entry if the bulk write was ordered.
+   */
+  writeErrors: Map<number, ClientBulkWriteError>;
+  /**
+   * The results of any successful operations that were performed before the error was
+   * encountered.
+   */
+  partialResult?: ClientBulkWriteResult;
+
+  /**
+   * Initialize the client bulk write error.
+   * @param message - The error message.
+   */
+  constructor(message: ErrorDescription) {
+    super(message);
+    this.writeConcernErrors = [];
+    this.writeErrors = new Map();
+  }
+
+  override get name(): string {
+    return 'MongoClientBulkWriteError';
+  }
+}
+
+/**
+ * An error indicating that an error occurred when processing bulk write results.
+ *
+ * @public
+ * @category Error
+ */
+export class MongoClientBulkWriteCursorError extends MongoRuntimeError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string) {
+    super(message);
+  }
+
+  override get name(): string {
+    return 'MongoClientBulkWriteCursorError';
+  }
+}
+
+/**
+ * An error indicating that an error occurred on the client when executing a client bulk write.
+ *
+ * @public
+ * @category Error
+ */
+export class MongoClientBulkWriteExecutionError extends MongoRuntimeError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string) {
+    super(message);
+  }
+
+  override get name(): string {
+    return 'MongoClientBulkWriteExecutionError';
+  }
+}
+
+/**
+ * An error generated when a ChangeStream operation fails to execute.
+ *
+ * @public
+ * @category Error
+ */
+export class MongoChangeStreamError extends MongoRuntimeError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string) {
+    super(message);
+  }
+
+  override get name(): string {
+    return 'MongoChangeStreamError';
+  }
+}
+
+/**
+ * An error thrown when the user calls a function or method not supported on a tailable cursor
+ *
+ * @public
+ * @category Error
+ */
+export class MongoTailableCursorError extends MongoAPIError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message = 'Tailable cursor does not support this operation') {
+    super(message);
+  }
+
+  override get name(): string {
+    return 'MongoTailableCursorError';
+  }
+}
+
+/** An error generated when a GridFSStream operation fails to execute.
+ *
+ * @public
+ * @category Error
+ */
+export class MongoGridFSStreamError extends MongoRuntimeError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string) {
+    super(message);
+  }
+
+  override get name(): string {
+    return 'MongoGridFSStreamError';
+  }
+}
+
+/**
+ * An error generated when a malformed or invalid chunk is
+ * encountered when reading from a GridFSStream.
+ *
+ * @public
+ * @category Error
+ */
+export class MongoGridFSChunkError extends MongoRuntimeError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string) {
+    super(message);
+  }
+
+  override get name(): string {
+    return 'MongoGridFSChunkError';
+  }
+}
+
+/**
+ * An error generated when a **parsable** unexpected response comes from the server.
+ * This is generally an error where the driver in a state expecting a certain behavior to occur in
+ * the next message from MongoDB but it receives something else.
+ * This error **does not** represent an issue with wire message formatting.
+ *
+ * #### Example
+ * When an operation fails, it is the driver's job to retry it. It must perform serverSelection
+ * again to make sure that it attempts the operation against a server in a good state. If server
+ * selection returns a server that does not support retryable operations, this error is used.
+ * This scenario is unlikely as retryable support would also have been determined on the first attempt
+ * but it is possible the state change could report a selectable server that does not support retries.
+ *
+ * @public
+ * @category Error
+ */
+export class MongoUnexpectedServerResponseError extends MongoRuntimeError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string, options?: { cause?: Error }) {
+    super(message, options);
+  }
+
+  override get name(): string {
+    return 'MongoUnexpectedServerResponseError';
+  }
+}
+
+/**
+ * @public
+ * @category Error
+ *
+ * The `MongoOperationTimeoutError` class represents an error that occurs when an operation could not be completed within the specified `timeoutMS`.
+ * It is generated by the driver in support of the "client side operation timeout" feature so inherits from `MongoDriverError`.
+ * When `timeoutMS` is enabled `MongoServerError`s relating to `MaxTimeExpired` errors will be converted to `MongoOperationTimeoutError`
+ *
+ * @example
+ * ```ts
+ * try {
+ *   await blogs.insertOne(blogPost, { timeoutMS: 60_000 })
+ * } catch (error) {
+ *   if (error instanceof MongoOperationTimeoutError) {
+ *     console.log(`Oh no! writer's block!`, error);
+ *   }
+ * }
+ * ```
+ */
+export class MongoOperationTimeoutError extends MongoDriverError {
+  override get name(): string {
+    return 'MongoOperationTimeoutError';
+  }
+}
+
+/**
+ * An error thrown when the user attempts to add options to a cursor that has already been
+ * initialized
+ *
+ * @public
+ * @category Error
+ */
+export class MongoCursorInUseError extends MongoAPIError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message = 'Cursor is already initialized') {
+    super(message);
+  }
+
+  override get name(): string {
+    return 'MongoCursorInUseError';
+  }
+}
+
+/**
+ * An error generated when an attempt is made to operate
+ * on a closed/closing server.
+ *
+ * @public
+ * @category Error
+ */
+export class MongoServerClosedError extends MongoAPIError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message = 'Server is closed') {
+    super(message);
+  }
+
+  override get name(): string {
+    return 'MongoServerClosedError';
+  }
+}
+
+/**
+ * An error thrown when an attempt is made to read from a cursor that has been exhausted
+ *
+ * @public
+ * @category Error
+ */
+export class MongoCursorExhaustedError extends MongoAPIError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message?: string) {
+    super(message || 'Cursor is exhausted');
+  }
+
+  override get name(): string {
+    return 'MongoCursorExhaustedError';
+  }
+}
+
+/**
+ * An error generated when an attempt is made to operate on a
+ * dropped, or otherwise unavailable, database.
+ *
+ * @public
+ * @category Error
+ */
+export class MongoTopologyClosedError extends MongoAPIError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message = 'Topology is closed') {
+    super(message);
+  }
+
+  override get name(): string {
+    return 'MongoTopologyClosedError';
+  }
+}
+
+/** @internal */
+const kBeforeHandshake = Symbol('beforeHandshake');
+export function isNetworkErrorBeforeHandshake(err: MongoNetworkError): boolean {
+  return err[kBeforeHandshake] === true;
+}
+
+/** @public */
+export interface MongoNetworkErrorOptions {
+  /** Indicates the timeout happened before a connection handshake completed */
+  beforeHandshake?: boolean;
+  cause?: Error;
+}
+
+/**
+ * An error indicating an issue with the network, including TCP errors and timeouts.
+ * @public
+ * @category Error
+ */
+export class MongoNetworkError extends MongoError {
+  /** @internal */
+  [kBeforeHandshake]?: boolean;
+
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string, options?: MongoNetworkErrorOptions) {
+    super(message, { cause: options?.cause });
+
+    if (options && typeof options.beforeHandshake === 'boolean') {
+      this[kBeforeHandshake] = options.beforeHandshake;
+    }
+  }
+
+  override get name(): string {
+    return 'MongoNetworkError';
+  }
+}
+
+/**
+ * An error indicating a network timeout occurred
+ * @public
+ * @category Error
+ *
+ * @privateRemarks
+ * mongodb-client-encryption has a dependency on this error with an instanceof check
+ */
+export class MongoNetworkTimeoutError extends MongoNetworkError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string, options?: MongoNetworkErrorOptions) {
+    super(message, options);
+  }
+
+  override get name(): string {
+    return 'MongoNetworkTimeoutError';
+  }
+}
+
+/**
+ * An error used when attempting to parse a value (like a connection string)
+ * @public
+ * @category Error
+ */
+export class MongoParseError extends MongoDriverError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string) {
+    super(message);
+  }
+
+  override get name(): string {
+    return 'MongoParseError';
+  }
+}
+
+/**
+ * An error generated when the user supplies malformed or unexpected arguments
+ * or when a required argument or field is not provided.
+ *
+ *
+ * @public
+ * @category Error
+ */
+export class MongoInvalidArgumentError extends MongoAPIError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string, options?: { cause?: Error }) {
+    super(message, options);
+  }
+
+  override get name(): string {
+    return 'MongoInvalidArgumentError';
+  }
+}
+
+/**
+ * An error generated when a feature that is not enabled or allowed for the current server
+ * configuration is used
+ *
+ *
+ * @public
+ * @category Error
+ */
+export class MongoCompatibilityError extends MongoAPIError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string) {
+    super(message);
+  }
+
+  override get name(): string {
+    return 'MongoCompatibilityError';
+  }
+}
+
+/**
+ * An error generated when the user fails to provide authentication credentials before attempting
+ * to connect to a mongo server instance.
+ *
+ *
+ * @public
+ * @category Error
+ */
+export class MongoMissingCredentialsError extends MongoAPIError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string) {
+    super(message);
+  }
+
+  override get name(): string {
+    return 'MongoMissingCredentialsError';
+  }
+}
+
+/**
+ * An error generated when a required module or dependency is not present in the local environment
+ *
+ * @public
+ * @category Error
+ */
+export class MongoMissingDependencyError extends MongoAPIError {
+  dependencyName: string;
+
+  /** @remarks This property is assigned in the `Error` constructor. */
+  declare cause: Error;
+
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string, options: { cause: Error; dependencyName: string }) {
+    super(message, options);
+    this.dependencyName = options.dependencyName;
+  }
+
+  override get name(): string {
+    return 'MongoMissingDependencyError';
+  }
+}
+/**
+ * An error signifying a general system issue
+ * @public
+ * @category Error
+ */
+export class MongoSystemError extends MongoError {
+  /** An optional reason context, such as an error saved during flow of monitoring and selecting servers */
+  reason?: TopologyDescription;
+
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string, reason: TopologyDescription) {
+    if (reason && reason.error) {
+      super(MongoError.buildErrorMessage(reason.error.message || reason.error), {
+        cause: reason.error
+      });
+    } else {
+      super(message);
+    }
+
+    if (reason) {
+      this.reason = reason;
+    }
+
+    this.code = reason.error?.code;
+  }
+
+  override get name(): string {
+    return 'MongoSystemError';
+  }
+}
+
+/**
+ * An error signifying a client-side server selection error
+ * @public
+ * @category Error
+ */
+export class MongoServerSelectionError extends MongoSystemError {
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(message: string, reason: TopologyDescription) {
+    super(message, reason);
+  }
+
+  override get name(): string {
+    return 'MongoServerSelectionError';
+  }
+}
+
+/**
+ * The type of the result property of MongoWriteConcernError
+ * @public
+ */
+export interface WriteConcernErrorResult {
+  writeConcernError: {
+    code: number;
+    errmsg: string;
+    codeName?: string;
+    errInfo?: Document;
+  };
+  ok: number;
+  code?: number;
+  errorLabels?: string[];
+  [x: string | number]: unknown;
+}
+
+/**
+ * An error thrown when the server reports a writeConcernError
+ * @public
+ * @category Error
+ */
+export class MongoWriteConcernError extends MongoServerError {
+  /** The result document */
+  result: Document;
+
+  /**
+   * **Do not use this constructor!**
+   *
+   * Meant for internal use only.
+   *
+   * @remarks
+   * This class is only meant to be constructed within the driver. This constructor is
+   * not subject to semantic versioning compatibility guarantees and may change at any time.
+   *
+   * @public
+   **/
+  constructor(result: WriteConcernErrorResult) {
+    super({ ...result.writeConcernError, ...result });
+    this.errInfo = result.writeConcernError.errInfo;
+    this.result = result;
+  }
+
+  override get name(): string {
+    return 'MongoWriteConcernError';
+  }
+}
+
+// https://github.com/mongodb/specifications/blob/master/source/retryable-reads/retryable-reads.md#retryable-error
+const RETRYABLE_READ_ERROR_CODES = new Set<number>([
+  MONGODB_ERROR_CODES.HostUnreachable,
+  MONGODB_ERROR_CODES.HostNotFound,
+  MONGODB_ERROR_CODES.NetworkTimeout,
+  MONGODB_ERROR_CODES.ShutdownInProgress,
+  MONGODB_ERROR_CODES.PrimarySteppedDown,
+  MONGODB_ERROR_CODES.SocketException,
+  MONGODB_ERROR_CODES.NotWritablePrimary,
+  MONGODB_ERROR_CODES.InterruptedAtShutdown,
+  MONGODB_ERROR_CODES.InterruptedDueToReplStateChange,
+  MONGODB_ERROR_CODES.NotPrimaryNoSecondaryOk,
+  MONGODB_ERROR_CODES.NotPrimaryOrSecondary,
+  MONGODB_ERROR_CODES.ExceededTimeLimit,
+  MONGODB_ERROR_CODES.ReadConcernMajorityNotAvailableYet
+]);
+
+// see: https://github.com/mongodb/specifications/blob/master/source/retryable-writes/retryable-writes.md#terms
+const RETRYABLE_WRITE_ERROR_CODES = RETRYABLE_READ_ERROR_CODES;
+
+export function needsRetryableWriteLabel(
+  error: Error,
+  maxWireVersion: number,
+  serverType: ServerType
+): boolean {
+  // pre-4.4 server, then the driver adds an error label for every valid case
+  // execute operation will only inspect the label, code/message logic is handled here
+  if (error instanceof MongoNetworkError) {
+    return true;
+  }
+
+  if (error instanceof MongoError) {
+    if (
+      (maxWireVersion >= 9 || isRetryableWriteError(error)) &&
+      !error.hasErrorLabel(MongoErrorLabel.HandshakeError)
+    ) {
+      // If we already have the error label no need to add it again. 4.4+ servers add the label.
+      // In the case where we have a handshake error, need to fall down to the logic checking
+      // the codes.
+      return false;
+    }
+  }
+
+  if (error instanceof MongoWriteConcernError) {
+    if (serverType === 'Mongos' && maxWireVersion < 9) {
+      // use original top-level code from server response
+      return RETRYABLE_WRITE_ERROR_CODES.has(error.result.code ?? 0);
+    }
+    const code = error.result.writeConcernError.code ?? Number(error.code);
+    return RETRYABLE_WRITE_ERROR_CODES.has(Number.isNaN(code) ? 0 : code);
+  }
+
+  if (error instanceof MongoError) {
+    return RETRYABLE_WRITE_ERROR_CODES.has(Number(error.code));
+  }
+
+  const isNotWritablePrimaryError = LEGACY_NOT_WRITABLE_PRIMARY_ERROR_MESSAGE.test(error.message);
+  if (isNotWritablePrimaryError) {
+    return true;
+  }
+
+  const isNodeIsRecoveringError = NODE_IS_RECOVERING_ERROR_MESSAGE.test(error.message);
+  if (isNodeIsRecoveringError) {
+    return true;
+  }
+
+  return false;
+}
+
+export function isRetryableWriteError(error: MongoError): boolean {
+  return (
+    error.hasErrorLabel(MongoErrorLabel.RetryableWriteError) ||
+    error.hasErrorLabel(MongoErrorLabel.PoolRequstedRetry)
+  );
+}
+
+/** Determines whether an error is something the driver should attempt to retry */
+export function isRetryableReadError(error: MongoError): boolean {
+  const hasRetryableErrorCode =
+    typeof error.code === 'number' ? RETRYABLE_READ_ERROR_CODES.has(error.code) : false;
+  if (hasRetryableErrorCode) {
+    return true;
+  }
+
+  if (error instanceof MongoNetworkError) {
+    return true;
+  }
+
+  const isNotWritablePrimaryError = LEGACY_NOT_WRITABLE_PRIMARY_ERROR_MESSAGE.test(error.message);
+  if (isNotWritablePrimaryError) {
+    return true;
+  }
+
+  const isNodeIsRecoveringError = NODE_IS_RECOVERING_ERROR_MESSAGE.test(error.message);
+  if (isNodeIsRecoveringError) {
+    return true;
+  }
+
+  return false;
+}
+
+const SDAM_RECOVERING_CODES = new Set<number>([
+  MONGODB_ERROR_CODES.ShutdownInProgress,
+  MONGODB_ERROR_CODES.PrimarySteppedDown,
+  MONGODB_ERROR_CODES.InterruptedAtShutdown,
+  MONGODB_ERROR_CODES.InterruptedDueToReplStateChange,
+  MONGODB_ERROR_CODES.NotPrimaryOrSecondary
+]);
+
+const SDAM_NOT_PRIMARY_CODES = new Set<number>([
+  MONGODB_ERROR_CODES.NotWritablePrimary,
+  MONGODB_ERROR_CODES.NotPrimaryNoSecondaryOk,
+  MONGODB_ERROR_CODES.LegacyNotPrimary
+]);
+
+const SDAM_NODE_SHUTTING_DOWN_ERROR_CODES = new Set<number>([
+  MONGODB_ERROR_CODES.InterruptedAtShutdown,
+  MONGODB_ERROR_CODES.ShutdownInProgress
+]);
+
+function isRecoveringError(err: MongoError) {
+  if (typeof err.code === 'number') {
+    // If any error code exists, we ignore the error.message
+    return SDAM_RECOVERING_CODES.has(err.code);
+  }
+
+  return (
+    LEGACY_NOT_PRIMARY_OR_SECONDARY_ERROR_MESSAGE.test(err.message) ||
+    NODE_IS_RECOVERING_ERROR_MESSAGE.test(err.message)
+  );
+}
+
+function isNotWritablePrimaryError(err: MongoError) {
+  if (typeof err.code === 'number') {
+    // If any error code exists, we ignore the error.message
+    return SDAM_NOT_PRIMARY_CODES.has(err.code);
+  }
+
+  if (isRecoveringError(err)) {
+    return false;
+  }
+
+  return LEGACY_NOT_WRITABLE_PRIMARY_ERROR_MESSAGE.test(err.message);
+}
+
+export function isNodeShuttingDownError(err: MongoError): boolean {
+  return !!(typeof err.code === 'number' && SDAM_NODE_SHUTTING_DOWN_ERROR_CODES.has(err.code));
+}
+
+/**
+ * Determines whether SDAM can recover from a given error. If it cannot
+ * then the pool will be cleared, and server state will completely reset
+ * locally.
+ *
+ * @see https://github.com/mongodb/specifications/blob/master/source/server-discovery-and-monitoring/server-discovery-and-monitoring.md#not-writable-primary-and-node-is-recovering
+ */
+export function isSDAMUnrecoverableError(error: MongoError): boolean {
+  // NOTE: null check is here for a strictly pre-CMAP world, a timeout or
+  //       close event are considered unrecoverable
+  if (error instanceof MongoParseError || error == null) {
+    return true;
+  }
+
+  return isRecoveringError(error) || isNotWritablePrimaryError(error);
+}
+
+export function isNetworkTimeoutError(err: MongoError): err is MongoNetworkError {
+  return !!(err instanceof MongoNetworkError && err.message.match(/timed out/));
+}
+
+export function isResumableError(error?: Error, wireVersion?: number): boolean {
+  if (error == null || !(error instanceof MongoError)) {
+    return false;
+  }
+
+  if (error instanceof MongoNetworkError) {
+    return true;
+  }
+
+  if (wireVersion != null && wireVersion >= 9) {
+    // DRIVERS-1308: For 4.4 drivers running against 4.4 servers, drivers will add a special case to treat the CursorNotFound error code as resumable
+    if (error.code === MONGODB_ERROR_CODES.CursorNotFound) {
+      return true;
+    }
+    return error.hasErrorLabel(MongoErrorLabel.ResumableChangeStreamError);
+  }
+
+  if (typeof error.code === 'number') {
+    return GET_MORE_RESUMABLE_CODES.has(error.code);
+  }
+
+  return false;
+}
diff --git a/backend/node_modules/mongodb/src/explain.ts b/backend/node_modules/mongodb/src/explain.ts
new file mode 100644
index 0000000..670bea5
--- /dev/null
+++ b/backend/node_modules/mongodb/src/explain.ts
@@ -0,0 +1,173 @@
+import { type Document } from './bson';
+import { AbstractCursor } from './cursor/abstract_cursor';
+import { MongoAPIError } from './error';
+
+/** @public */
+export const ExplainVerbosity = Object.freeze({
+  queryPlanner: 'queryPlanner',
+  queryPlannerExtended: 'queryPlannerExtended',
+  executionStats: 'executionStats',
+  allPlansExecution: 'allPlansExecution'
+} as const);
+
+/** @public */
+export type ExplainVerbosity = string;
+
+/**
+ * For backwards compatibility, true is interpreted as "allPlansExecution"
+ * and false as "queryPlanner".
+ * @public
+ */
+export type ExplainVerbosityLike = ExplainVerbosity | boolean;
+
+/** @public */
+export interface ExplainCommandOptions {
+  /** The explain verbosity for the command. */
+  verbosity: ExplainVerbosity;
+  /** The maxTimeMS setting for the command. */
+  maxTimeMS?: number;
+}
+
+/**
+ * @public
+ *
+ * When set, this configures an explain command.  Valid values are boolean (for legacy compatibility,
+ * see {@link ExplainVerbosityLike}), a string containing the explain verbosity, or an object containing the verbosity and
+ * an optional maxTimeMS.
+ *
+ * Examples of valid usage:
+ *
+ * ```typescript
+ * collection.find({ name: 'john doe' }, { explain: true });
+ * collection.find({ name: 'john doe' }, { explain: false });
+ * collection.find({ name: 'john doe' }, { explain: 'queryPlanner' });
+ * collection.find({ name: 'john doe' }, { explain: { verbosity: 'queryPlanner' } });
+ * ```
+ *
+ * maxTimeMS can be configured to limit the amount of time the server
+ * spends executing an explain by providing an object:
+ *
+ * ```typescript
+ * // limits the `explain` command to no more than 2 seconds
+ * collection.find({ name: 'john doe' }, {
+ *   explain:  {
+ *    verbosity: 'queryPlanner',
+ *    maxTimeMS: 2000
+ *  }
+ * });
+ * ```
+ */
+export interface ExplainOptions {
+  /** Specifies the verbosity mode for the explain output. */
+  explain?: ExplainVerbosityLike | ExplainCommandOptions;
+}
+
+/** @internal */
+export class Explain {
+  readonly verbosity: ExplainVerbosity;
+  readonly maxTimeMS?: number;
+
+  private constructor(verbosity: ExplainVerbosityLike, maxTimeMS?: number) {
+    if (typeof verbosity === 'boolean') {
+      this.verbosity = verbosity
+        ? ExplainVerbosity.allPlansExecution
+        : ExplainVerbosity.queryPlanner;
+    } else {
+      this.verbosity = verbosity;
+    }
+
+    this.maxTimeMS = maxTimeMS;
+  }
+
+  static fromOptions({ explain }: ExplainOptions = {}): Explain | undefined {
+    if (explain == null) return;
+
+    if (typeof explain === 'boolean' || typeof explain === 'string') {
+      return new Explain(explain);
+    }
+
+    const { verbosity, maxTimeMS } = explain;
+    return new Explain(verbosity, maxTimeMS);
+  }
+}
+
+export function validateExplainTimeoutOptions(options: Document, explain?: Explain) {
+  const { maxTimeMS, timeoutMS } = options;
+  if (timeoutMS != null && (maxTimeMS != null || explain?.maxTimeMS != null)) {
+    throw new MongoAPIError('Cannot use maxTimeMS with timeoutMS for explain commands.');
+  }
+}
+
+/**
+ * Applies an explain to a given command.
+ * @internal
+ *
+ * @param command - the command on which to apply the explain
+ * @param options - the options containing the explain verbosity
+ */
+export function decorateWithExplain(
+  command: Document,
+  explain: Explain
+): {
+  explain: Document;
+  verbosity: ExplainVerbosity;
+  maxTimeMS?: number;
+} {
+  type ExplainCommand = ReturnType<typeof decorateWithExplain>;
+  const { verbosity, maxTimeMS } = explain;
+  const baseCommand: ExplainCommand = { explain: command, verbosity };
+
+  if (typeof maxTimeMS === 'number') {
+    baseCommand.maxTimeMS = maxTimeMS;
+  }
+
+  return baseCommand;
+}
+
+/**
+ * @public
+ *
+ * A base class for any cursors that have `explain()` methods.
+ */
+export abstract class ExplainableCursor<TSchema> extends AbstractCursor<TSchema> {
+  /** Execute the explain for the cursor */
+  abstract explain(): Promise<Document>;
+  abstract explain(verbosity: ExplainVerbosityLike | ExplainCommandOptions): Promise<Document>;
+  abstract explain(options: { timeoutMS?: number }): Promise<Document>;
+  abstract explain(
+    verbosity: ExplainVerbosityLike | ExplainCommandOptions,
+    options: { timeoutMS?: number }
+  ): Promise<Document>;
+  abstract explain(
+    verbosity?: ExplainVerbosityLike | ExplainCommandOptions | { timeoutMS?: number },
+    options?: { timeoutMS?: number }
+  ): Promise<Document>;
+
+  protected resolveExplainTimeoutOptions(
+    verbosity?: ExplainVerbosityLike | ExplainCommandOptions | { timeoutMS?: number },
+    options?: { timeoutMS?: number }
+  ): { timeout?: { timeoutMS?: number }; explain?: ExplainVerbosityLike | ExplainCommandOptions } {
+    let explain: ExplainVerbosityLike | ExplainCommandOptions | undefined;
+    let timeout: { timeoutMS?: number } | undefined;
+
+    if (verbosity == null && options == null) {
+      explain = undefined;
+      timeout = undefined;
+    } else if (verbosity != null && options == null) {
+      explain =
+        typeof verbosity !== 'object'
+          ? verbosity
+          : 'verbosity' in verbosity
+            ? verbosity
+            : undefined;
+
+      timeout = typeof verbosity === 'object' && 'timeoutMS' in verbosity ? verbosity : undefined;
+    } else {
+      // @ts-expect-error TS isn't smart enough to determine that if both options are provided, the first is explain options
+      explain = verbosity;
+      timeout = options;
+    }
+
+    return { timeout, explain };
+  }
+}
diff --git a/backend/node_modules/mongodb/src/gridfs/download.ts b/backend/node_modules/mongodb/src/gridfs/download.ts
new file mode 100644
index 0000000..022bcf9
--- /dev/null
+++ b/backend/node_modules/mongodb/src/gridfs/download.ts
@@ -0,0 +1,487 @@
+import { Readable } from 'stream';
+
+import type { Document, ObjectId } from '../bson';
+import type { Collection } from '../collection';
+import { CursorTimeoutMode } from '../cursor/abstract_cursor';
+import type { FindCursor } from '../cursor/find_cursor';
+import {
+  MongoGridFSChunkError,
+  MongoGridFSStreamError,
+  MongoInvalidArgumentError,
+  MongoRuntimeError
+} from '../error';
+import type { FindOptions } from '../operations/find';
+import type { ReadPreference } from '../read_preference';
+import type { Sort } from '../sort';
+import { CSOTTimeoutContext } from '../timeout';
+import type { Callback } from '../utils';
+import type { GridFSChunk } from './upload';
+
+/** @public */
+export interface GridFSBucketReadStreamOptions {
+  sort?: Sort;
+  skip?: number;
+  /**
+   * 0-indexed non-negative byte offset from the beginning of the file
+   */
+  start?: number;
+  /**
+   * 0-indexed non-negative byte offset to the end of the file contents
+   * to be returned by the stream. `end` is non-inclusive
+   */
+  end?: number;
+  /**
+   * @experimental
+   * Specifies the time an operation will run until it throws a timeout error
+   */
+  timeoutMS?: number;
+}
+
+/** @public */
+export interface GridFSBucketReadStreamOptionsWithRevision extends GridFSBucketReadStreamOptions {
+  /** The revision number relative to the oldest file with the given filename. 0
+   * gets you the oldest file, 1 gets you the 2nd oldest, -1 gets you the
+   * newest. */
+  revision?: number;
+}
+
+/** @public */
+export interface GridFSFile {
+  _id: ObjectId;
+  length: number;
+  chunkSize: number;
+  filename: string;
+  metadata?: Document;
+  uploadDate: Date;
+  /** @deprecated Will be removed in the next major version. */
+  contentType?: string;
+  /** @deprecated Will be removed in the next major version. */
+  aliases?: string[];
+}
+
+/** @internal */
+export interface GridFSBucketReadStreamPrivate {
+  /**
+   * The running total number of bytes read from the chunks collection.
+   */
+  bytesRead: number;
+  /**
+   * The number of bytes to remove from the last chunk read in the file.  This is non-zero
+   * if `end` is not equal to the length of the document and `end` is not a multiple
+   * of the chunkSize.
+   */
+  bytesToTrim: number;
+
+  /**
+   * The number of bytes to remove from the first chunk read in the file.  This is non-zero
+   * if `start` is not equal to the 0  and `start` is not a multiple
+   * of the chunkSize.
+   */
+  bytesToSkip: number;
+
+  files: Collection<GridFSFile>;
+  chunks: Collection<GridFSChunk>;
+  cursor?: FindCursor<GridFSChunk>;
+
+  /** The running total number of chunks read from the chunks collection. */
+  expected: number;
+
+  /**
+   * The filter used to search in the _files_ collection (i.e., `{ _id: <> }`)
+   * This is not the same filter used when reading chunks from the chunks collection.
+   */
+  filter: Document;
+
+  /** Indicates whether or not download has started. */
+  init: boolean;
+
+  /** The expected number of chunks to read, calculated from start, end, chunkSize and file length. */
+  expectedEnd: number;
+  file?: GridFSFile;
+  options: {
+    sort?: Sort;
+    skip?: number;
+    start: number;
+    end: number;
+    timeoutMS?: number;
+  };
+  readPreference?: ReadPreference;
+  timeoutContext?: CSOTTimeoutContext;
+}
+
+/**
+ * A readable stream that enables you to read buffers from GridFS.
+ *
+ * Do not instantiate this class directly. Use `openDownloadStream()` instead.
+ * @public
+ */
+export class GridFSBucketReadStream extends Readable {
+  /** @internal */
+  s: GridFSBucketReadStreamPrivate;
+
+  /**
+   * Fires when the stream loaded the file document corresponding to the provided id.
+   * @event
+   */
+  static readonly FILE = 'file' as const;
+
+  /**
+   * @param chunks - Handle for chunks collection
+   * @param files - Handle for files collection
+   * @param readPreference - The read preference to use
+   * @param filter - The filter to use to find the file document
+   * @internal
+   */
+  constructor(
+    chunks: Collection<GridFSChunk>,
+    files: Collection<GridFSFile>,
+    readPreference: ReadPreference | undefined,
+    filter: Document,
+    options?: GridFSBucketReadStreamOptions
+  ) {
+    super({ emitClose: true });
+    this.s = {
+      bytesToTrim: 0,
+      bytesToSkip: 0,
+      bytesRead: 0,
+      chunks,
+      expected: 0,
+      files,
+      filter,
+      init: false,
+      expectedEnd: 0,
+      options: {
+        start: 0,
+        end: 0,
+        ...options
+      },
+      readPreference,
+      timeoutContext:
+        options?.timeoutMS != null
+          ? new CSOTTimeoutContext({ timeoutMS: options.timeoutMS, serverSelectionTimeoutMS: 0 })
+          : undefined
+    };
+  }
+
+  /**
+   * Reads from the cursor and pushes to the stream.
+   * Private Impl, do not call directly
+   * @internal
+   */
+  override _read(): void {
+    if (this.destroyed) return;
+    waitForFile(this, () => doRead(this));
+  }
+
+  /**
+   * Sets the 0-based offset in bytes to start streaming from. Throws
+   * an error if this stream has entered flowing mode
+   * (e.g. if you've already called `on('data')`)
+   *
+   * @param start - 0-based offset in bytes to start streaming from
+   */
+  start(start = 0): this {
+    throwIfInitialized(this);
+    this.s.options.start = start;
+    return this;
+  }
+
+  /**
+   * Sets the 0-based offset in bytes to start streaming from. Throws
+   * an error if this stream has entered flowing mode
+   * (e.g. if you've already called `on('data')`)
+   *
+   * @param end - Offset in bytes to stop reading at
+   */
+  end(end = 0): this {
+    throwIfInitialized(this);
+    this.s.options.end = end;
+    return this;
+  }
+
+  /**
+   * Marks this stream as aborted (will never push another `data` event)
+   * and kills the underlying cursor. Will emit the 'end' event, and then
+   * the 'close' event once the cursor is successfully killed.
+   */
+  async abort(): Promise<void> {
+    this.push(null);
+    this.destroy();
+    const remainingTimeMS = this.s.timeoutContext?.getRemainingTimeMSOrThrow();
+    await this.s.cursor?.close({ timeoutMS: remainingTimeMS });
+  }
+}
+
+function throwIfInitialized(stream: GridFSBucketReadStream): void {
+  if (stream.s.init) {
+    throw new MongoGridFSStreamError('Options cannot be changed after the stream is initialized');
+  }
+}
+
+function doRead(stream: GridFSBucketReadStream): void {
+  if (stream.destroyed) return;
+  if (!stream.s.cursor) return;
+  if (!stream.s.file) return;
+
+  const handleReadResult = (doc: Document | null) => {
+    if (stream.destroyed) return;
+
+    if (!doc) {
+      stream.push(null);
+
+      stream.s.cursor?.close().then(undefined, error => stream.destroy(error));
+      return;
+    }
+
+    if (!stream.s.file) return;
+
+    const bytesRemaining = stream.s.file.length - stream.s.bytesRead;
+    const expectedN = stream.s.expected++;
+    const expectedLength = Math.min(stream.s.file.chunkSize, bytesRemaining);
+    if (doc.n > expectedN) {
+      return stream.destroy(
+        new MongoGridFSChunkError(
+          `ChunkIsMissing: Got unexpected n: ${doc.n}, expected: ${expectedN}`
+        )
+      );
+    }
+
+    if (doc.n < expectedN) {
+      return stream.destroy(
+        new MongoGridFSChunkError(`ExtraChunk: Got unexpected n: ${doc.n}, expected: ${expectedN}`)
+      );
+    }
+
+    let buf = Buffer.isBuffer(doc.data) ? doc.data : doc.data.buffer;
+
+    if (buf.byteLength !== expectedLength) {
+      if (bytesRemaining <= 0) {
+        return stream.destroy(
+          new MongoGridFSChunkError(
+            `ExtraChunk: Got unexpected n: ${doc.n}, expected file length ${stream.s.file.length} bytes but already read ${stream.s.bytesRead} bytes`
+          )
+        );
+      }
+
+      return stream.destroy(
+        new MongoGridFSChunkError(
+          `ChunkIsWrongSize: Got unexpected length: ${buf.byteLength}, expected: ${expectedLength}`
+        )
+      );
+    }
+
+    stream.s.bytesRead += buf.byteLength;
+
+    if (buf.byteLength === 0) {
+      return stream.push(null);
+    }
+
+    let sliceStart = null;
+    let sliceEnd = null;
+
+    if (stream.s.bytesToSkip != null) {
+      sliceStart = stream.s.bytesToSkip;
+      stream.s.bytesToSkip = 0;
+    }
+
+    const atEndOfStream = expectedN === stream.s.expectedEnd - 1;
+    const bytesLeftToRead = stream.s.options.end - stream.s.bytesToSkip;
+    if (atEndOfStream && stream.s.bytesToTrim != null) {
+      sliceEnd = stream.s.file.chunkSize - stream.s.bytesToTrim;
+    } else if (stream.s.options.end && bytesLeftToRead < doc.data.byteLength) {
+      sliceEnd = bytesLeftToRead;
+    }
+
+    if (sliceStart != null || sliceEnd != null) {
+      buf = buf.slice(sliceStart || 0, sliceEnd || buf.byteLength);
+    }
+
+    stream.push(buf);
+    return;
+  };
+
+  stream.s.cursor.next().then(handleReadResult, error => {
+    if (stream.destroyed) return;
+    stream.destroy(error);
+  });
+}
+
+function init(stream: GridFSBucketReadStream): void {
+  const findOneOptions: FindOptions = {};
+  if (stream.s.readPreference) {
+    findOneOptions.readPreference = stream.s.readPreference;
+  }
+  if (stream.s.options && stream.s.options.sort) {
+    findOneOptions.sort = stream.s.options.sort;
+  }
+  if (stream.s.options && stream.s.options.skip) {
+    findOneOptions.skip = stream.s.options.skip;
+  }
+
+  const handleReadResult = (doc: Document | null) => {
+    if (stream.destroyed) return;
+
+    if (!doc) {
+      const identifier = stream.s.filter._id
+        ? stream.s.filter._id.toString()
+        : stream.s.filter.filename;
+      const errmsg = `FileNotFound: file ${identifier} was not found`;
+      // TODO(NODE-3483)
+      const err = new MongoRuntimeError(errmsg);
+      err.code = 'ENOENT'; // TODO: NODE-3338 set property as part of constructor
+      return stream.destroy(err);
+    }
+
+    // If document is empty, kill the stream immediately and don't
+    // execute any reads
+    if (doc.length <= 0) {
+      stream.push(null);
+      return;
+    }
+
+    if (stream.destroyed) {
+      // If user destroys the stream before we have a cursor, wait
+      // until the query is done to say we're 'closed' because we can't
+      // cancel a query.
+      stream.destroy();
+      return;
+    }
+
+    try {
+      stream.s.bytesToSkip = handleStartOption(stream, doc, stream.s.options);
+    } catch (error) {
+      return stream.destroy(error);
+    }
+
+    const filter: Document = { files_id: doc._id };
+
+    // Currently (MongoDB 3.4.4) skip function does not support the index,
+    // it needs to retrieve all the documents first and then skip them. (CS-25811)
+    // As work around we use $gte on the "n" field.
+    if (stream.s.options && stream.s.options.start != null) {
+      const skip = Math.floor(stream.s.options.start / doc.chunkSize);
+      if (skip > 0) {
+        filter['n'] = { $gte: skip };
+      }
+    }
+
+    let remainingTimeMS: number | undefined;
+    try {
+      remainingTimeMS = stream.s.timeoutContext?.getRemainingTimeMSOrThrow(
+        `Download timed out after ${stream.s.timeoutContext?.timeoutMS}ms`
+      );
+    } catch (error) {
+      return stream.destroy(error);
+    }
+
+    stream.s.cursor = stream.s.chunks
+      .find(filter, {
+        timeoutMode: stream.s.options.timeoutMS != null ? CursorTimeoutMode.LIFETIME : undefined,
+        timeoutMS: remainingTimeMS
+      })
+      .sort({ n: 1 });
+
+    if (stream.s.readPreference) {
+      stream.s.cursor.withReadPreference(stream.s.readPreference);
+    }
+
+    stream.s.expectedEnd = Math.ceil(doc.length / doc.chunkSize);
+    stream.s.file = doc as GridFSFile;
+
+    try {
+      stream.s.bytesToTrim = handleEndOption(stream, doc, stream.s.cursor, stream.s.options);
+    } catch (error) {
+      return stream.destroy(error);
+    }
+
+    stream.emit(GridFSBucketReadStream.FILE, doc);
+    return;
+  };
+
+  let remainingTimeMS: number | undefined;
+  try {
+    remainingTimeMS = stream.s.timeoutContext?.getRemainingTimeMSOrThrow(
+      `Download timed out after ${stream.s.timeoutContext?.timeoutMS}ms`
+    );
+  } catch (error) {
+    if (!stream.destroyed) stream.destroy(error);
+    return;
+  }
+
+  findOneOptions.timeoutMS = remainingTimeMS;
+
+  stream.s.files.findOne(stream.s.filter, findOneOptions).then(handleReadResult, error => {
+    if (stream.destroyed) return;
+    stream.destroy(error);
+  });
+}
+
+function waitForFile(stream: GridFSBucketReadStream, callback: Callback): void {
+  if (stream.s.file) {
+    return callback();
+  }
+
+  if (!stream.s.init) {
+    init(stream);
+    stream.s.init = true;
+  }
+
+  stream.once('file', () => {
+    callback();
+  });
+}
+
+function handleStartOption(
+  stream: GridFSBucketReadStream,
+  doc: Document,
+  options: GridFSBucketReadStreamOptions
+): number {
+  if (options && options.start != null) {
+    if (options.start > doc.length) {
+      throw new MongoInvalidArgumentError(
+        `Stream start (${options.start}) must not be more than the length of the file (${doc.length})`
+      );
+    }
+    if (options.start < 0) {
+      throw new MongoInvalidArgumentError(`Stream start (${options.start}) must not be negative`);
+    }
+    if (options.end != null && options.end < options.start) {
+      throw new MongoInvalidArgumentError(
+        `Stream start (${options.start}) must not be greater than stream end (${options.end})`
+      );
+    }
+
+    stream.s.bytesRead = Math.floor(options.start / doc.chunkSize) * doc.chunkSize;
+    stream.s.expected = Math.floor(options.start / doc.chunkSize);
+
+    return options.start - stream.s.bytesRead;
+  }
+  throw new MongoInvalidArgumentError('Start option must be defined');
+}
+
+function handleEndOption(
+  stream: GridFSBucketReadStream,
+  doc: Document,
+  cursor: FindCursor<GridFSChunk>,
+  options: GridFSBucketReadStreamOptions
+) {
+  if (options && options.end != null) {
+    if (options.end > doc.length) {
+      throw new MongoInvalidArgumentError(
+        `Stream end (${options.end}) must not be more than the length of the file (${doc.length})`
+      );
+    }
+    if (options.start == null || options.start < 0) {
+      throw new MongoInvalidArgumentError(`Stream end (${options.end}) must not be negative`);
+    }
+
+    const start = options.start != null ? Math.floor(options.start / doc.chunkSize) : 0;
+
+    cursor.limit(Math.ceil(options.end / doc.chunkSize) - start);
+
+    stream.s.expectedEnd = Math.ceil(options.end / doc.chunkSize);
+
+    return Math.ceil(options.end / doc.chunkSize) * doc.chunkSize - options.end;
+  }
+  throw new MongoInvalidArgumentError('End option must be defined');
+}
diff --git a/backend/node_modules/mongodb/src/gridfs/index.ts b/backend/node_modules/mongodb/src/gridfs/index.ts
new file mode 100644
index 0000000..70f1544
--- /dev/null
+++ b/backend/node_modules/mongodb/src/gridfs/index.ts
@@ -0,0 +1,263 @@
+import type { ObjectId } from '../bson';
+import type { Collection } from '../collection';
+import type { FindCursor } from '../cursor/find_cursor';
+import type { Db } from '../db';
+import { MongoOperationTimeoutError, MongoRuntimeError } from '../error';
+import { type Filter, TypedEventEmitter } from '../mongo_types';
+import type { ReadPreference } from '../read_preference';
+import type { Sort } from '../sort';
+import { CSOTTimeoutContext } from '../timeout';
+import { resolveOptions } from '../utils';
+import { WriteConcern, type WriteConcernOptions } from '../write_concern';
+import type { FindOptions } from './../operations/find';
+import {
+  GridFSBucketReadStream,
+  type GridFSBucketReadStreamOptions,
+  type GridFSBucketReadStreamOptionsWithRevision,
+  type GridFSFile
+} from './download';
+import {
+  GridFSBucketWriteStream,
+  type GridFSBucketWriteStreamOptions,
+  type GridFSChunk
+} from './upload';
+
+const DEFAULT_GRIDFS_BUCKET_OPTIONS: {
+  bucketName: string;
+  chunkSizeBytes: number;
+} = {
+  bucketName: 'fs',
+  chunkSizeBytes: 255 * 1024
+};
+
+/** @public */
+export interface GridFSBucketOptions extends WriteConcernOptions {
+  /** The 'files' and 'chunks' collections will be prefixed with the bucket name followed by a dot. */
+  bucketName?: string;
+  /** Number of bytes stored in each chunk. Defaults to 255KB */
+  chunkSizeBytes?: number;
+  /** Read preference to be passed to read operations */
+  readPreference?: ReadPreference;
+  /**
+   * @experimental
+   * Specifies the lifetime duration of a gridFS stream. If any async operations are in progress
+   * when this timeout expires, the stream will throw a timeout error.
+   */
+  timeoutMS?: number;
+}
+
+/** @internal */
+export interface GridFSBucketPrivate {
+  db: Db;
+  options: {
+    bucketName: string;
+    chunkSizeBytes: number;
+    readPreference?: ReadPreference;
+    writeConcern: WriteConcern | undefined;
+    timeoutMS?: number;
+  };
+  _chunksCollection: Collection<GridFSChunk>;
+  _filesCollection: Collection<GridFSFile>;
+  checkedIndexes: boolean;
+  calledOpenUploadStream: boolean;
+}
+
+/** @public */
+export type GridFSBucketEvents = {
+  index(): void;
+};
+
+/**
+ * Constructor for a streaming GridFS interface
+ * @public
+ */
+export class GridFSBucket extends TypedEventEmitter<GridFSBucketEvents> {
+  /** @internal */
+  s: GridFSBucketPrivate;
+
+  /**
+   * When the first call to openUploadStream is made, the upload stream will
+   * check to see if it needs to create the proper indexes on the chunks and
+   * files collections. This event is fired either when 1) it determines that
+   * no index creation is necessary, 2) when it successfully creates the
+   * necessary indexes.
+   * @event
+   */
+  static readonly INDEX = 'index' as const;
+
+  constructor(db: Db, options?: GridFSBucketOptions) {
+    super();
+    this.setMaxListeners(0);
+    const privateOptions = resolveOptions(db, {
+      ...DEFAULT_GRIDFS_BUCKET_OPTIONS,
+      ...options,
+      writeConcern: WriteConcern.fromOptions(options)
+    });
+    this.s = {
+      db,
+      options: privateOptions,
+      _chunksCollection: db.collection<GridFSChunk>(privateOptions.bucketName + '.chunks'),
+      _filesCollection: db.collection<GridFSFile>(privateOptions.bucketName + '.files'),
+      checkedIndexes: false,
+      calledOpenUploadStream: false
+    };
+  }
+
+  /**
+   * Returns a writable stream (GridFSBucketWriteStream) for writing
+   * buffers to GridFS. The stream's 'id' property contains the resulting
+   * file's id.
+   *
+   * @param filename - The value of the 'filename' key in the files doc
+   * @param options - Optional settings.
+   */
+
+  openUploadStream(
+    filename: string,
+    options?: GridFSBucketWriteStreamOptions
+  ): GridFSBucketWriteStream {
+    return new GridFSBucketWriteStream(this, filename, {
+      timeoutMS: this.s.options.timeoutMS,
+      ...options
+    });
+  }
+
+  /**
+   * Returns a writable stream (GridFSBucketWriteStream) for writing
+   * buffers to GridFS for a custom file id. The stream's 'id' property contains the resulting
+   * file's id.
+   */
+  openUploadStreamWithId(
+    id: ObjectId,
+    filename: string,
+    options?: GridFSBucketWriteStreamOptions
+  ): GridFSBucketWriteStream {
+    return new GridFSBucketWriteStream(this, filename, {
+      timeoutMS: this.s.options.timeoutMS,
+      ...options,
+      id
+    });
+  }
+
+  /** Returns a readable stream (GridFSBucketReadStream) for streaming file data from GridFS. */
+  openDownloadStream(
+    id: ObjectId,
+    options?: GridFSBucketReadStreamOptions
+  ): GridFSBucketReadStream {
+    return new GridFSBucketReadStream(
+      this.s._chunksCollection,
+      this.s._filesCollection,
+      this.s.options.readPreference,
+      { _id: id },
+      { timeoutMS: this.s.options.timeoutMS, ...options }
+    );
+  }
+
+  /**
+   * Deletes a file with the given id
+   *
+   * @param id - The id of the file doc
+   */
+  async delete(id: ObjectId, options?: { timeoutMS: number }): Promise<void> {
+    const { timeoutMS } = resolveOptions(this.s.db, options);
+    let timeoutContext: CSOTTimeoutContext | undefined = undefined;
+
+    if (timeoutMS) {
+      timeoutContext = new CSOTTimeoutContext({
+        timeoutMS,
+        serverSelectionTimeoutMS: this.s.db.client.s.options.serverSelectionTimeoutMS
+      });
+    }
+
+    const { deletedCount } = await this.s._filesCollection.deleteOne(
+      { _id: id },
+      { timeoutMS: timeoutContext?.remainingTimeMS }
+    );
+
+    const remainingTimeMS = timeoutContext?.remainingTimeMS;
+    if (remainingTimeMS != null && remainingTimeMS <= 0)
+      throw new MongoOperationTimeoutError(`Timed out after ${timeoutMS}ms`);
+    // Delete orphaned chunks before returning FileNotFound
+    await this.s._chunksCollection.deleteMany({ files_id: id }, { timeoutMS: remainingTimeMS });
+
+    if (deletedCount === 0) {
+      // TODO(NODE-3483): Replace with more appropriate error
+      // Consider creating new error MongoGridFSFileNotFoundError
+      throw new MongoRuntimeError(`File not found for id ${id}`);
+    }
+  }
+
+  /** Convenience wrapper around find on the files collection */
+  find(filter: Filter<GridFSFile> = {}, options: FindOptions = {}): FindCursor<GridFSFile> {
+    return this.s._filesCollection.find(filter, options);
+  }
+
+  /**
+   * Returns a readable stream (GridFSBucketReadStream) for streaming the
+   * file with the given name from GridFS. If there are multiple files with
+   * the same name, this will stream the most recent file with the given name
+   * (as determined by the `uploadDate` field). You can set the `revision`
+   * option to change this behavior.
+   */
+  openDownloadStreamByName(
+    filename: string,
+    options?: GridFSBucketReadStreamOptionsWithRevision
+  ): GridFSBucketReadStream {
+    let sort: Sort = { uploadDate: -1 };
+    let skip = undefined;
+    if (options && options.revision != null) {
+      if (options.revision >= 0) {
+        sort = { uploadDate: 1 };
+        skip = options.revision;
+      } else {
+        skip = -options.revision - 1;
+      }
+    }
+    return new GridFSBucketReadStream(
+      this.s._chunksCollection,
+      this.s._filesCollection,
+      this.s.options.readPreference,
+      { filename },
+      { timeoutMS: this.s.options.timeoutMS, ...options, sort, skip }
+    );
+  }
+
+  /**
+   * Renames the file with the given _id to the given string
+   *
+   * @param id - the id of the file to rename
+   * @param filename - new name for the file
+   */
+  async rename(id: ObjectId, filename: string, options?: { timeoutMS: number }): Promise<void> {
+    const filter = { _id: id };
+    const update = { $set: { filename } };
+    const { matchedCount } = await this.s._filesCollection.updateOne(filter, update, options);
+    if (matchedCount === 0) {
+      throw new MongoRuntimeError(`File with id ${id} not found`);
+    }
+  }
+
+  /** Removes this bucket's files collection, followed by its chunks collection. */
+  async drop(options?: { timeoutMS: number }): Promise<void> {
+    const { timeoutMS } = resolveOptions(this.s.db, options);
+    let timeoutContext: CSOTTimeoutContext | undefined = undefined;
+
+    if (timeoutMS) {
+      timeoutContext = new CSOTTimeoutContext({
+        timeoutMS,
+        serverSelectionTimeoutMS: this.s.db.client.s.options.serverSelectionTimeoutMS
+      });
+    }
+
+    if (timeoutContext) {
+      await this.s._filesCollection.drop({ timeoutMS: timeoutContext.remainingTimeMS });
+      const remainingTimeMS = timeoutContext.getRemainingTimeMSOrThrow(
+        `Timed out after ${timeoutMS}ms`
+      );
+      await this.s._chunksCollection.drop({ timeoutMS: remainingTimeMS });
+    } else {
+      await this.s._filesCollection.drop();
+      await this.s._chunksCollection.drop();
+    }
+  }
+}
diff --git a/backend/node_modules/mongodb/src/gridfs/upload.ts b/backend/node_modules/mongodb/src/gridfs/upload.ts
new file mode 100644
index 0000000..0231726
--- /dev/null
+++ b/backend/node_modules/mongodb/src/gridfs/upload.ts
@@ -0,0 +1,559 @@
+import { Writable } from 'stream';
+
+import { type Document, ObjectId } from '../bson';
+import type { Collection } from '../collection';
+import { CursorTimeoutMode } from '../cursor/abstract_cursor';
+import {
+  MongoAPIError,
+  MONGODB_ERROR_CODES,
+  MongoError,
+  MongoOperationTimeoutError
+} from '../error';
+import { CSOTTimeoutContext } from '../timeout';
+import { type Callback, resolveTimeoutOptions, squashError } from '../utils';
+import type { WriteConcernOptions } from '../write_concern';
+import { WriteConcern } from './../write_concern';
+import type { GridFSFile } from './download';
+import type { GridFSBucket } from './index';
+
+/** @public */
+export interface GridFSChunk {
+  _id: ObjectId;
+  files_id: ObjectId;
+  n: number;
+  data: Buffer | Uint8Array;
+}
+
+/** @public */
+export interface GridFSBucketWriteStreamOptions extends WriteConcernOptions {
+  /** Overwrite this bucket's chunkSizeBytes for this file */
+  chunkSizeBytes?: number;
+  /** Custom file id for the GridFS file. */
+  id?: ObjectId;
+  /** Object to store in the file document's `metadata` field */
+  metadata?: Document;
+  /**
+   * String to store in the file document's `contentType` field.
+   * @deprecated Will be removed in the next major version. Add a contentType field to the metadata document instead.
+   */
+  contentType?: string;
+  /**
+   * Array of strings to store in the file document's `aliases` field.
+   * @deprecated Will be removed in the next major version. Add an aliases field to the metadata document instead.
+   */
+  aliases?: string[];
+  /**
+   * @experimental
+   * Specifies the time an operation will run until it throws a timeout error
+   */
+  timeoutMS?: number;
+}
+
+/**
+ * A writable stream that enables you to write buffers to GridFS.
+ *
+ * Do not instantiate this class directly. Use `openUploadStream()` instead.
+ * @public
+ */
+export class GridFSBucketWriteStream extends Writable {
+  bucket: GridFSBucket;
+  /** A Collection instance where the file's chunks are stored */
+  chunks: Collection<GridFSChunk>;
+  /** A Collection instance where the file's GridFSFile document is stored */
+  files: Collection<GridFSFile>;
+  /** The name of the file */
+  filename: string;
+  /** Options controlling the metadata inserted along with the file */
+  options: GridFSBucketWriteStreamOptions;
+  /** Indicates the stream is finished uploading */
+  done: boolean;
+  /** The ObjectId used for the `_id` field on the GridFSFile document */
+  id: ObjectId;
+  /** The number of bytes that each chunk will be limited to */
+  chunkSizeBytes: number;
+  /** Space used to store a chunk currently being inserted */
+  bufToStore: Buffer;
+  /** Accumulates the number of bytes inserted as the stream uploads chunks */
+  length: number;
+  /** Accumulates the number of chunks inserted as the stream uploads file contents */
+  n: number;
+  /** Tracks the current offset into the buffered bytes being uploaded */
+  pos: number;
+  /** Contains a number of properties indicating the current state of the stream */
+  state: {
+    /** If set the stream has ended */
+    streamEnd: boolean;
+    /** Indicates the number of chunks that still need to be inserted to exhaust the current buffered data */
+    outstandingRequests: number;
+    /** If set an error occurred during insertion */
+    errored: boolean;
+    /** If set the stream was intentionally aborted */
+    aborted: boolean;
+  };
+  /** The write concern setting to be used with every insert operation */
+  writeConcern?: WriteConcern;
+  /**
+   * The document containing information about the inserted file.
+   * This property is defined _after_ the finish event has been emitted.
+   * It will remain `null` if an error occurs.
+   *
+   * @example
+   * ```ts
+   * fs.createReadStream('file.txt')
+   *   .pipe(bucket.openUploadStream('file.txt'))
+   *   .on('finish', function () {
+   *     console.log(this.gridFSFile)
+   *   })
+   * ```
+   */
+  gridFSFile: GridFSFile | null = null;
+  /** @internal */
+  timeoutContext?: CSOTTimeoutContext;
+
+  /**
+   * @param bucket - Handle for this stream's corresponding bucket
+   * @param filename - The value of the 'filename' key in the files doc
+   * @param options - Optional settings.
+   * @internal
+   */
+  constructor(bucket: GridFSBucket, filename: string, options?: GridFSBucketWriteStreamOptions) {
+    super();
+
+    options = options ?? {};
+    this.bucket = bucket;
+    this.chunks = bucket.s._chunksCollection;
+    this.filename = filename;
+    this.files = bucket.s._filesCollection;
+    this.options = options;
+    this.writeConcern = WriteConcern.fromOptions(options) || bucket.s.options.writeConcern;
+    // Signals the write is all done
+    this.done = false;
+
+    this.id = options.id ? options.id : new ObjectId();
+    // properly inherit the default chunksize from parent
+    this.chunkSizeBytes = options.chunkSizeBytes || this.bucket.s.options.chunkSizeBytes;
+    this.bufToStore = Buffer.alloc(this.chunkSizeBytes);
+    this.length = 0;
+    this.n = 0;
+    this.pos = 0;
+    this.state = {
+      streamEnd: false,
+      outstandingRequests: 0,
+      errored: false,
+      aborted: false
+    };
+
+    if (options.timeoutMS != null)
+      this.timeoutContext = new CSOTTimeoutContext({
+        timeoutMS: options.timeoutMS,
+        serverSelectionTimeoutMS: resolveTimeoutOptions(this.bucket.s.db.client, {})
+          .serverSelectionTimeoutMS
+      });
+  }
+
+  /**
+   * @internal
+   *
+   * The stream is considered constructed when the indexes are done being created
+   */
+  override _construct(callback: (error?: Error | null) => void): void {
+    if (!this.bucket.s.calledOpenUploadStream) {
+      this.bucket.s.calledOpenUploadStream = true;
+
+      checkIndexes(this).then(
+        () => {
+          this.bucket.s.checkedIndexes = true;
+          this.bucket.emit('index');
+          callback();
+        },
+        error => {
+          if (error instanceof MongoOperationTimeoutError) {
+            return handleError(this, error, callback);
+          }
+          squashError(error);
+          callback();
+        }
+      );
+    } else {
+      return process.nextTick(callback);
+    }
+  }
+
+  /**
+   * @internal
+   * Write a buffer to the stream.
+   *
+   * @param chunk - Buffer to write
+   * @param encoding - Optional encoding for the buffer
+   * @param callback - Function to call when the chunk was added to the buffer, or if the entire chunk was persisted to MongoDB if this chunk caused a flush.
+   */
+  override _write(
+    chunk: Buffer | string,
+    encoding: BufferEncoding,
+    callback: Callback<void>
+  ): void {
+    doWrite(this, chunk, encoding, callback);
+  }
+
+  /** @internal */
+  override _final(callback: (error?: Error | null) => void): void {
+    if (this.state.streamEnd) {
+      return process.nextTick(callback);
+    }
+    this.state.streamEnd = true;
+    writeRemnant(this, callback);
+  }
+
+  /**
+   * Places this write stream into an aborted state (all future writes fail)
+   * and deletes all chunks that have already been written.
+   */
+  async abort(): Promise<void> {
+    if (this.state.streamEnd) {
+      // TODO(NODE-3485): Replace with MongoGridFSStreamClosed
+      throw new MongoAPIError('Cannot abort a stream that has already completed');
+    }
+
+    if (this.state.aborted) {
+      // TODO(NODE-3485): Replace with MongoGridFSStreamClosed
+      throw new MongoAPIError('Cannot call abort() on a stream twice');
+    }
+
+    this.state.aborted = true;
+    const remainingTimeMS = this.timeoutContext?.getRemainingTimeMSOrThrow(
+      `Upload timed out after ${this.timeoutContext?.timeoutMS}ms`
+    );
+
+    await this.chunks.deleteMany({ files_id: this.id }, { timeoutMS: remainingTimeMS });
+  }
+}
+
+function handleError(stream: GridFSBucketWriteStream, error: Error, callback: Callback): void {
+  if (stream.state.errored) {
+    process.nextTick(callback);
+    return;
+  }
+  stream.state.errored = true;
+  process.nextTick(callback, error);
+}
+
+function createChunkDoc(filesId: ObjectId, n: number, data: Buffer): GridFSChunk {
+  return {
+    _id: new ObjectId(),
+    files_id: filesId,
+    n,
+    data
+  };
+}
+
+async function checkChunksIndex(stream: GridFSBucketWriteStream): Promise<void> {
+  const index = { files_id: 1, n: 1 };
+
+  let remainingTimeMS;
+  remainingTimeMS = stream.timeoutContext?.getRemainingTimeMSOrThrow(
+    `Upload timed out after ${stream.timeoutContext?.timeoutMS}ms`
+  );
+
+  let indexes;
+  try {
+    indexes = await stream.chunks
+      .listIndexes({
+        timeoutMode: remainingTimeMS != null ? CursorTimeoutMode.LIFETIME : undefined,
+        timeoutMS: remainingTimeMS
+      })
+      .toArray();
+  } catch (error) {
+    if (error instanceof MongoError && error.code === MONGODB_ERROR_CODES.NamespaceNotFound) {
+      indexes = [];
+    } else {
+      throw error;
+    }
+  }
+
+  const hasChunksIndex = !!indexes.find(index => {
+    const keys = Object.keys(index.key);
+    if (keys.length === 2 && index.key.files_id === 1 && index.key.n === 1) {
+      return true;
+    }
+    return false;
+  });
+
+  if (!hasChunksIndex) {
+    remainingTimeMS = stream.timeoutContext?.getRemainingTimeMSOrThrow(
+      `Upload timed out after ${stream.timeoutContext?.timeoutMS}ms`
+    );
+    await stream.chunks.createIndex(index, {
+      ...stream.writeConcern,
+      background: true,
+      unique: true,
+      timeoutMS: remainingTimeMS
+    });
+  }
+}
+
+function checkDone(stream: GridFSBucketWriteStream, callback: Callback): void {
+  if (stream.done) {
+    return process.nextTick(callback);
+  }
+
+  if (stream.state.streamEnd && stream.state.outstandingRequests === 0 && !stream.state.errored) {
+    // Set done so we do not trigger duplicate createFilesDoc
+    stream.done = true;
+    // Create a new files doc
+    const gridFSFile = createFilesDoc(
+      stream.id,
+      stream.length,
+      stream.chunkSizeBytes,
+      stream.filename,
+      stream.options.contentType,
+      stream.options.aliases,
+      stream.options.metadata
+    );
+
+    if (isAborted(stream, callback)) {
+      return;
+    }
+
+    const remainingTimeMS = stream.timeoutContext?.remainingTimeMS;
+    if (remainingTimeMS != null && remainingTimeMS <= 0) {
+      return handleError(
+        stream,
+        new MongoOperationTimeoutError(
+          `Upload timed out after ${stream.timeoutContext?.timeoutMS}ms`
+        ),
+        callback
+      );
+    }
+
+    stream.files
+      .insertOne(gridFSFile, { writeConcern: stream.writeConcern, timeoutMS: remainingTimeMS })
+      .then(
+        () => {
+          stream.gridFSFile = gridFSFile;
+          callback();
+        },
+        error => {
+          return handleError(stream, error, callback);
+        }
+      );
+    return;
+  }
+
+  process.nextTick(callback);
+}
+
+async function checkIndexes(stream: GridFSBucketWriteStream): Promise<void> {
+  let remainingTimeMS = stream.timeoutContext?.getRemainingTimeMSOrThrow(
+    `Upload timed out after ${stream.timeoutContext?.timeoutMS}ms`
+  );
+  const doc = await stream.files.findOne(
+    {},
+    {
+      projection: { _id: 1 },
+      timeoutMS: remainingTimeMS
+    }
+  );
+  if (doc != null) {
+    // If at least one document exists assume the collection has the required index
+    return;
+  }
+
+  const index = { filename: 1, uploadDate: 1 };
+
+  let indexes;
+  remainingTimeMS = stream.timeoutContext?.getRemainingTimeMSOrThrow(
+    `Upload timed out after ${stream.timeoutContext?.timeoutMS}ms`
+  );
+  const listIndexesOptions = {
+    timeoutMode: remainingTimeMS != null ? CursorTimeoutMode.LIFETIME : undefined,
+    timeoutMS: remainingTimeMS
+  };
+  try {
+    indexes = await stream.files.listIndexes(listIndexesOptions).toArray();
+  } catch (error) {
+    if (error instanceof MongoError && error.code === MONGODB_ERROR_CODES.NamespaceNotFound) {
+      indexes = [];
+    } else {
+      throw error;
+    }
+  }
+
+  const hasFileIndex = !!indexes.find(index => {
+    const keys = Object.keys(index.key);
+    if (keys.length === 2 && index.key.filename === 1 && index.key.uploadDate === 1) {
+      return true;
+    }
+    return false;
+  });
+
+  if (!hasFileIndex) {
+    remainingTimeMS = stream.timeoutContext?.getRemainingTimeMSOrThrow(
+      `Upload timed out after ${stream.timeoutContext?.timeoutMS}ms`
+    );
+
+    await stream.files.createIndex(index, { background: false, timeoutMS: remainingTimeMS });
+  }
+
+  await checkChunksIndex(stream);
+}
+
+function createFilesDoc(
+  _id: ObjectId,
+  length: number,
+  chunkSize: number,
+  filename: string,
+  contentType?: string,
+  aliases?: string[],
+  metadata?: Document
+): GridFSFile {
+  const ret: GridFSFile = {
+    _id,
+    length,
+    chunkSize,
+    uploadDate: new Date(),
+    filename
+  };
+
+  if (contentType) {
+    ret.contentType = contentType;
+  }
+
+  if (aliases) {
+    ret.aliases = aliases;
+  }
+
+  if (metadata) {
+    ret.metadata = metadata;
+  }
+
+  return ret;
+}
+
+function doWrite(
+  stream: GridFSBucketWriteStream,
+  chunk: Buffer | string,
+  encoding: BufferEncoding,
+  callback: Callback<void>
+): void {
+  if (isAborted(stream, callback)) {
+    return;
+  }
+
+  const inputBuf = Buffer.isBuffer(chunk) ? chunk : Buffer.from(chunk, encoding);
+
+  stream.length += inputBuf.length;
+
+  // Input is small enough to fit in our buffer
+  if (stream.pos + inputBuf.length < stream.chunkSizeBytes) {
+    inputBuf.copy(stream.bufToStore, stream.pos);
+    stream.pos += inputBuf.length;
+    process.nextTick(callback);
+    return;
+  }
+
+  // Otherwise, buffer is too big for current chunk, so we need to flush
+  // to MongoDB.
+  let inputBufRemaining = inputBuf.length;
+  let spaceRemaining: number = stream.chunkSizeBytes - stream.pos;
+  let numToCopy = Math.min(spaceRemaining, inputBuf.length);
+  let outstandingRequests = 0;
+  while (inputBufRemaining > 0) {
+    const inputBufPos = inputBuf.length - inputBufRemaining;
+    inputBuf.copy(stream.bufToStore, stream.pos, inputBufPos, inputBufPos + numToCopy);
+    stream.pos += numToCopy;
+    spaceRemaining -= numToCopy;
+    let doc: GridFSChunk;
+    if (spaceRemaining === 0) {
+      doc = createChunkDoc(stream.id, stream.n, Buffer.from(stream.bufToStore));
+
+      const remainingTimeMS = stream.timeoutContext?.remainingTimeMS;
+      if (remainingTimeMS != null && remainingTimeMS <= 0) {
+        return handleError(
+          stream,
+          new MongoOperationTimeoutError(
+            `Upload timed out after ${stream.timeoutContext?.timeoutMS}ms`
+          ),
+          callback
+        );
+      }
+
+      ++stream.state.outstandingRequests;
+      ++outstandingRequests;
+
+      if (isAborted(stream, callback)) {
+        return;
+      }
+
+      stream.chunks
+        .insertOne(doc, { writeConcern: stream.writeConcern, timeoutMS: remainingTimeMS })
+        .then(
+          () => {
+            --stream.state.outstandingRequests;
+            --outstandingRequests;
+
+            if (!outstandingRequests) {
+              checkDone(stream, callback);
+            }
+          },
+          error => {
+            return handleError(stream, error, callback);
+          }
+        );
+
+      spaceRemaining = stream.chunkSizeBytes;
+      stream.pos = 0;
+      ++stream.n;
+    }
+    inputBufRemaining -= numToCopy;
+    numToCopy = Math.min(spaceRemaining, inputBufRemaining);
+  }
+}
+
+function writeRemnant(stream: GridFSBucketWriteStream, callback: Callback): void {
+  // Buffer is empty, so don't bother to insert
+  if (stream.pos === 0) {
+    return checkDone(stream, callback);
+  }
+
+  // Create a new buffer to make sure the buffer isn't bigger than it needs
+  // to be.
+  const remnant = Buffer.alloc(stream.pos);
+  stream.bufToStore.copy(remnant, 0, 0, stream.pos);
+  const doc = createChunkDoc(stream.id, stream.n, remnant);
+
+  // If the stream was aborted, do not write remnant
+  if (isAborted(stream, callback)) {
+    return;
+  }
+
+  const remainingTimeMS = stream.timeoutContext?.remainingTimeMS;
+  if (remainingTimeMS != null && remainingTimeMS <= 0) {
+    return handleError(
+      stream,
+      new MongoOperationTimeoutError(
+        `Upload timed out after ${stream.timeoutContext?.timeoutMS}ms`
+      ),
+      callback
+    );
+  }
+  ++stream.state.outstandingRequests;
+  stream.chunks
+    .insertOne(doc, { writeConcern: stream.writeConcern, timeoutMS: remainingTimeMS })
+    .then(
+      () => {
+        --stream.state.outstandingRequests;
+        checkDone(stream, callback);
+      },
+      error => {
+        return handleError(stream, error, callback);
+      }
+    );
+}
+
+function isAborted(stream: GridFSBucketWriteStream, callback: Callback<void>): boolean {
+  if (stream.state.aborted) {
+    process.nextTick(callback, new MongoAPIError('Stream has been aborted'));
+    return true;
+  }
+  return false;
+}
diff --git a/backend/node_modules/mongodb/src/index.ts b/backend/node_modules/mongodb/src/index.ts
new file mode 100644
index 0000000..794bed9
--- /dev/null
+++ b/backend/node_modules/mongodb/src/index.ts
@@ -0,0 +1,634 @@
+import { Admin } from './admin';
+import { OrderedBulkOperation } from './bulk/ordered';
+import { UnorderedBulkOperation } from './bulk/unordered';
+import { ChangeStream } from './change_stream';
+import { Collection } from './collection';
+import { AbstractCursor } from './cursor/abstract_cursor';
+import { AggregationCursor } from './cursor/aggregation_cursor';
+import { FindCursor } from './cursor/find_cursor';
+import { ListCollectionsCursor } from './cursor/list_collections_cursor';
+import { ListIndexesCursor } from './cursor/list_indexes_cursor';
+import type { RunCommandCursor } from './cursor/run_command_cursor';
+import { Db } from './db';
+import { ExplainableCursor } from './explain';
+import { GridFSBucket } from './gridfs';
+import { GridFSBucketReadStream } from './gridfs/download';
+import { GridFSBucketWriteStream } from './gridfs/upload';
+import { MongoClient } from './mongo_client';
+import { CancellationToken } from './mongo_types';
+import { ClientSession } from './sessions';
+
+/** @public */
+export { BSON } from './bson';
+export {
+  Binary,
+  BSONRegExp,
+  BSONSymbol,
+  BSONType,
+  Code,
+  DBRef,
+  Decimal128,
+  Double,
+  Int32,
+  Long,
+  MaxKey,
+  MinKey,
+  ObjectId,
+  Timestamp,
+  UUID
+} from './bson';
+export {
+  type AnyBulkWriteOperation,
+  type BulkWriteOptions,
+  MongoBulkWriteError
+} from './bulk/common';
+export { ClientEncryption } from './client-side-encryption/client_encryption';
+export { ChangeStreamCursor } from './cursor/change_stream_cursor';
+export {
+  MongoAPIError,
+  MongoAWSError,
+  MongoAzureError,
+  MongoBatchReExecutionError,
+  MongoChangeStreamError,
+  MongoClientBulkWriteCursorError,
+  MongoClientBulkWriteError,
+  MongoClientBulkWriteExecutionError,
+  MongoCompatibilityError,
+  MongoCursorExhaustedError,
+  MongoCursorInUseError,
+  MongoDecompressionError,
+  MongoDriverError,
+  MongoError,
+  MongoExpiredSessionError,
+  MongoGCPError,
+  MongoGridFSChunkError,
+  MongoGridFSStreamError,
+  MongoInvalidArgumentError,
+  MongoKerberosError,
+  MongoMissingCredentialsError,
+  MongoMissingDependencyError,
+  MongoNetworkError,
+  MongoNetworkTimeoutError,
+  MongoNotConnectedError,
+  MongoOIDCError,
+  MongoOperationTimeoutError,
+  MongoParseError,
+  MongoRuntimeError,
+  MongoServerClosedError,
+  MongoServerError,
+  MongoServerSelectionError,
+  MongoStalePrimaryError,
+  MongoSystemError,
+  MongoTailableCursorError,
+  MongoTopologyClosedError,
+  MongoTransactionError,
+  MongoUnexpectedServerResponseError,
+  MongoWriteConcernError,
+  WriteConcernErrorResult
+} from './error';
+export { configureExplicitResourceManagement } from './resource_management';
+export {
+  AbstractCursor,
+  // Actual driver classes exported
+  Admin,
+  AggregationCursor,
+  CancellationToken,
+  ChangeStream,
+  ClientSession,
+  Collection,
+  Db,
+  ExplainableCursor,
+  FindCursor,
+  GridFSBucket,
+  GridFSBucketReadStream,
+  GridFSBucketWriteStream,
+  ListCollectionsCursor,
+  ListIndexesCursor,
+  MongoClient,
+  OrderedBulkOperation,
+  RunCommandCursor,
+  UnorderedBulkOperation
+};
+
+// enums
+export { BatchType } from './bulk/common';
+export { AutoEncryptionLoggerLevel } from './client-side-encryption/auto_encrypter';
+export { GSSAPICanonicalizationValue } from './cmap/auth/gssapi';
+export { AuthMechanism } from './cmap/auth/providers';
+export { Compressor } from './cmap/wire_protocol/compression';
+export { CURSOR_FLAGS, CursorTimeoutMode } from './cursor/abstract_cursor';
+export { MongoErrorLabel } from './error';
+export { ExplainVerbosity } from './explain';
+export { ServerApiVersion } from './mongo_client';
+export { ReturnDocument } from './operations/find_and_modify';
+export { ProfilingLevel } from './operations/set_profiling_level';
+export { ReadConcernLevel } from './read_concern';
+export { ReadPreferenceMode } from './read_preference';
+export { ServerType, TopologyType } from './sdam/common';
+
+// Helper classes
+export { ReadConcern } from './read_concern';
+export { ReadPreference } from './read_preference';
+export { WriteConcern } from './write_concern';
+
+// events
+export {
+  CommandFailedEvent,
+  CommandStartedEvent,
+  CommandSucceededEvent
+} from './cmap/command_monitoring_events';
+export {
+  ConnectionCheckedInEvent,
+  ConnectionCheckedOutEvent,
+  ConnectionCheckOutFailedEvent,
+  ConnectionCheckOutStartedEvent,
+  ConnectionClosedEvent,
+  ConnectionCreatedEvent,
+  ConnectionPoolClearedEvent,
+  ConnectionPoolClosedEvent,
+  ConnectionPoolCreatedEvent,
+  ConnectionPoolMonitoringEvent,
+  ConnectionPoolReadyEvent,
+  ConnectionReadyEvent
+} from './cmap/connection_pool_events';
+export {
+  ServerClosedEvent,
+  ServerDescriptionChangedEvent,
+  ServerHeartbeatFailedEvent,
+  ServerHeartbeatStartedEvent,
+  ServerHeartbeatSucceededEvent,
+  ServerOpeningEvent,
+  TopologyClosedEvent,
+  TopologyDescriptionChangedEvent,
+  TopologyOpeningEvent
+} from './sdam/events';
+export {
+  ServerSelectionEvent,
+  ServerSelectionFailedEvent,
+  ServerSelectionStartedEvent,
+  ServerSelectionSucceededEvent,
+  WaitingForSuitableServerEvent
+} from './sdam/server_selection_events';
+export { SrvPollingEvent } from './sdam/srv_polling';
+
+// type only exports below, these are removed from emitted JS
+export type { AdminPrivate } from './admin';
+export type { BSONElement, BSONSerializeOptions, Document } from './bson';
+export type { deserialize, serialize } from './bson';
+export type {
+  BulkResult,
+  BulkWriteOperationError,
+  BulkWriteResult,
+  DeleteManyModel,
+  DeleteOneModel,
+  InsertOneModel,
+  ReplaceOneModel,
+  UpdateManyModel,
+  UpdateOneModel,
+  WriteConcernError,
+  WriteError
+} from './bulk/common';
+export type {
+  Batch,
+  BulkOperationBase,
+  BulkOperationPrivate,
+  FindOperators,
+  WriteConcernErrorData
+} from './bulk/common';
+export type {
+  ChangeStreamCollModDocument,
+  ChangeStreamCreateDocument,
+  ChangeStreamCreateIndexDocument,
+  ChangeStreamDeleteDocument,
+  ChangeStreamDocument,
+  ChangeStreamDocumentCollectionUUID,
+  ChangeStreamDocumentCommon,
+  ChangeStreamDocumentKey,
+  ChangeStreamDocumentOperationDescription,
+  ChangeStreamDropDatabaseDocument,
+  ChangeStreamDropDocument,
+  ChangeStreamDropIndexDocument,
+  ChangeStreamEvents,
+  ChangeStreamInsertDocument,
+  ChangeStreamInvalidateDocument,
+  ChangeStreamNameSpace,
+  ChangeStreamOptions,
+  ChangeStreamRefineCollectionShardKeyDocument,
+  ChangeStreamRenameDocument,
+  ChangeStreamReplaceDocument,
+  ChangeStreamReshardCollectionDocument,
+  ChangeStreamShardCollectionDocument,
+  ChangeStreamSplitEvent,
+  ChangeStreamUpdateDocument,
+  OperationTime,
+  ResumeOptions,
+  ResumeToken,
+  UpdateDescription
+} from './change_stream';
+export type { AutoEncrypter } from './client-side-encryption/auto_encrypter';
+export type { AutoEncryptionOptions } from './client-side-encryption/auto_encrypter';
+export type { AutoEncryptionExtraOptions } from './client-side-encryption/auto_encrypter';
+export type {
+  AWSEncryptionKeyOptions,
+  AzureEncryptionKeyOptions,
+  ClientEncryptionCreateDataKeyProviderOptions,
+  ClientEncryptionEncryptOptions,
+  ClientEncryptionOptions,
+  ClientEncryptionRewrapManyDataKeyProviderOptions,
+  ClientEncryptionRewrapManyDataKeyResult,
+  DataKey,
+  GCPEncryptionKeyOptions,
+  KMIPEncryptionKeyOptions,
+  RangeOptions
+} from './client-side-encryption/client_encryption';
+export {
+  MongoCryptAzureKMSRequestError,
+  MongoCryptCreateDataKeyError,
+  MongoCryptCreateEncryptedCollectionError,
+  MongoCryptError,
+  MongoCryptInvalidArgumentError,
+  MongoCryptKMSRequestNetworkTimeoutError
+} from './client-side-encryption/errors';
+export type { MongocryptdManager } from './client-side-encryption/mongocryptd_manager';
+export type {
+  AWSKMSProviderConfiguration,
+  AzureKMSProviderConfiguration,
+  ClientEncryptionDataKeyProvider,
+  GCPKMSProviderConfiguration,
+  KMIPKMSProviderConfiguration,
+  KMSProviders,
+  LocalKMSProviderConfiguration
+} from './client-side-encryption/providers/index';
+export type {
+  ClientEncryptionSocketOptions,
+  ClientEncryptionTlsOptions,
+  CSFLEKMSTlsOptions,
+  StateMachineExecutable
+} from './client-side-encryption/state_machine';
+export type { AuthContext, AuthProvider } from './cmap/auth/auth_provider';
+export type {
+  AuthMechanismProperties,
+  MongoCredentials,
+  MongoCredentialsOptions
+} from './cmap/auth/mongo_credentials';
+export type {
+  IdPInfo,
+  IdPServerResponse,
+  OIDCCallbackFunction,
+  OIDCCallbackParams,
+  OIDCResponse
+} from './cmap/auth/mongodb_oidc';
+export type { Workflow } from './cmap/auth/mongodb_oidc';
+export type { TokenCache } from './cmap/auth/mongodb_oidc/token_cache';
+export type {
+  MessageHeader,
+  OpCompressedRequest,
+  OpMsgOptions,
+  OpMsgRequest,
+  OpMsgResponse,
+  OpQueryOptions,
+  OpQueryRequest,
+  OpReply,
+  WriteProtocolMessageType
+} from './cmap/commands';
+export type { HandshakeDocument } from './cmap/connect';
+export type { LEGAL_TCP_SOCKET_OPTIONS, LEGAL_TLS_SOCKET_OPTIONS, Stream } from './cmap/connect';
+export type {
+  CommandOptions,
+  Connection,
+  ConnectionEvents,
+  ConnectionOptions,
+  ProxyOptions
+} from './cmap/connection';
+export type {
+  CloseOptions,
+  ConnectionPool,
+  ConnectionPoolEvents,
+  ConnectionPoolOptions,
+  PoolState,
+  WaitQueueMember,
+  WithConnectionCallback
+} from './cmap/connection_pool';
+export type { ClientMetadata, ClientMetadataOptions } from './cmap/handshake/client_metadata';
+export type { ConnectionPoolMetrics } from './cmap/metrics';
+export type { StreamDescription, StreamDescriptionOptions } from './cmap/stream_description';
+export type { CompressorName } from './cmap/wire_protocol/compression';
+export type {
+  JSTypeOf,
+  OnDemandDocument,
+  OnDemandDocumentDeserializeOptions
+} from './cmap/wire_protocol/on_demand/document';
+export type {
+  CursorResponse,
+  MongoDBResponse,
+  MongoDBResponseConstructor
+} from './cmap/wire_protocol/responses';
+export type {
+  CollectionOptions,
+  CollectionPrivate,
+  CountDocumentsOptions,
+  ModifyResult
+} from './collection';
+export type {
+  COMMAND_FAILED,
+  COMMAND_STARTED,
+  COMMAND_SUCCEEDED,
+  CONNECTION_CHECK_OUT_FAILED,
+  CONNECTION_CHECK_OUT_STARTED,
+  CONNECTION_CHECKED_IN,
+  CONNECTION_CHECKED_OUT,
+  CONNECTION_CLOSED,
+  CONNECTION_CREATED,
+  CONNECTION_POOL_CLEARED,
+  CONNECTION_POOL_CLOSED,
+  CONNECTION_POOL_CREATED,
+  CONNECTION_POOL_READY,
+  CONNECTION_READY,
+  MONGO_CLIENT_EVENTS,
+  SERVER_CLOSED,
+  SERVER_DESCRIPTION_CHANGED,
+  SERVER_HEARTBEAT_FAILED,
+  SERVER_HEARTBEAT_STARTED,
+  SERVER_HEARTBEAT_SUCCEEDED,
+  SERVER_OPENING,
+  SERVER_SELECTION_FAILED,
+  SERVER_SELECTION_STARTED,
+  SERVER_SELECTION_SUCCEEDED,
+  TOPOLOGY_CLOSED,
+  TOPOLOGY_DESCRIPTION_CHANGED,
+  TOPOLOGY_OPENING,
+  WAITING_FOR_SUITABLE_SERVER
+} from './constants';
+export type {
+  AbstractCursorEvents,
+  AbstractCursorOptions,
+  CursorFlag,
+  CursorStreamOptions
+} from './cursor/abstract_cursor';
+export type {
+  CursorTimeoutContext,
+  InitialCursorResponse,
+  InternalAbstractCursorOptions
+} from './cursor/abstract_cursor';
+export type { AggregationCursorOptions } from './cursor/aggregation_cursor';
+export type { ChangeStreamCursorOptions } from './cursor/change_stream_cursor';
+export type {
+  ListSearchIndexesCursor,
+  ListSearchIndexesOptions
+} from './cursor/list_search_indexes_cursor';
+export type { RunCursorCommandOptions } from './cursor/run_command_cursor';
+export type { DbOptions, DbPrivate } from './db';
+export type { Encrypter, EncrypterOptions } from './encrypter';
+export type { AnyError, ErrorDescription, MongoNetworkErrorOptions } from './error';
+export type {
+  Explain,
+  ExplainCommandOptions,
+  ExplainOptions,
+  ExplainVerbosityLike
+} from './explain';
+export type {
+  GridFSBucketReadStreamOptions,
+  GridFSBucketReadStreamOptionsWithRevision,
+  GridFSBucketReadStreamPrivate,
+  GridFSFile
+} from './gridfs/download';
+export type { GridFSBucketEvents, GridFSBucketOptions, GridFSBucketPrivate } from './gridfs/index';
+export type { GridFSBucketWriteStreamOptions, GridFSChunk } from './gridfs/upload';
+export type {
+  Auth,
+  DriverInfo,
+  MongoClientEvents,
+  MongoClientOptions,
+  MongoClientPrivate,
+  MongoOptions,
+  PkFactory,
+  ServerApi,
+  SupportedNodeConnectionOptions,
+  SupportedSocketOptions,
+  SupportedTLSConnectionOptions,
+  SupportedTLSSocketOptions,
+  WithSessionCallback
+} from './mongo_client';
+export { MongoClientAuthProviders } from './mongo_client_auth_providers';
+export type {
+  Log,
+  LogComponentSeveritiesClientOptions,
+  LogConvertible,
+  Loggable,
+  LoggableCommandFailedEvent,
+  LoggableCommandSucceededEvent,
+  LoggableEvent,
+  LoggableServerHeartbeatFailedEvent,
+  LoggableServerHeartbeatStartedEvent,
+  LoggableServerHeartbeatSucceededEvent,
+  MongoDBLogWritable,
+  MongoLoggableComponent,
+  MongoLogger,
+  MongoLoggerEnvOptions,
+  MongoLoggerMongoClientOptions,
+  MongoLoggerOptions,
+  SeverityLevel
+} from './mongo_logger';
+export type {
+  CommonEvents,
+  EventsDescription,
+  GenericListener,
+  TypedEventEmitter
+} from './mongo_types';
+export type {
+  AcceptedFields,
+  AddToSetOperators,
+  AlternativeType,
+  ArrayElement,
+  ArrayOperator,
+  BitwiseFilter,
+  BSONTypeAlias,
+  Condition,
+  EnhancedOmit,
+  Filter,
+  FilterOperations,
+  FilterOperators,
+  Flatten,
+  InferIdType,
+  IntegerType,
+  IsAny,
+  Join,
+  KeysOfAType,
+  KeysOfOtherType,
+  MatchKeysAndValues,
+  NestedPaths,
+  NestedPathsOfType,
+  NonObjectIdLikeDocument,
+  NotAcceptedFields,
+  NumericType,
+  OneOrMore,
+  OnlyFieldsOfType,
+  OptionalId,
+  OptionalUnlessRequiredId,
+  PropertyType,
+  PullAllOperator,
+  PullOperator,
+  PushOperator,
+  RegExpOrString,
+  RootFilterOperators,
+  SchemaMember,
+  SetFields,
+  StrictFilter,
+  StrictMatchKeysAndValues,
+  StrictUpdateFilter,
+  UpdateFilter,
+  WithId,
+  WithoutId
+} from './mongo_types';
+export type {
+  AggregateOperation,
+  AggregateOptions,
+  DB_AGGREGATE_COLLECTION
+} from './operations/aggregate';
+export type {
+  AnyClientBulkWriteModel,
+  ClientBulkWriteError,
+  ClientBulkWriteModel,
+  ClientBulkWriteOptions,
+  ClientBulkWriteResult,
+  ClientDeleteManyModel,
+  ClientDeleteOneModel,
+  ClientDeleteResult,
+  ClientInsertOneModel,
+  ClientInsertOneResult,
+  ClientReplaceOneModel,
+  ClientUpdateManyModel,
+  ClientUpdateOneModel,
+  ClientUpdateResult,
+  ClientWriteModel
+} from './operations/client_bulk_write/common';
+export type {
+  CollationOptions,
+  CommandOperation,
+  CommandOperationOptions,
+  OperationParent
+} from './operations/command';
+export type { CountOptions } from './operations/count';
+export type {
+  ClusteredCollectionOptions,
+  CreateCollectionOptions,
+  TimeSeriesCollectionOptions
+} from './operations/create_collection';
+export type { DeleteOptions, DeleteResult, DeleteStatement } from './operations/delete';
+export type { DistinctOptions } from './operations/distinct';
+export type { DropCollectionOptions, DropDatabaseOptions } from './operations/drop';
+export type { EstimatedDocumentCountOptions } from './operations/estimated_document_count';
+export type { FindOptions } from './operations/find';
+export type {
+  FindOneAndDeleteOptions,
+  FindOneAndReplaceOptions,
+  FindOneAndUpdateOptions
+} from './operations/find_and_modify';
+export type { IndexInformationOptions } from './operations/indexes';
+export type {
+  CreateIndexesOptions,
+  DropIndexesOptions,
+  IndexDescription,
+  IndexDescriptionCompact,
+  IndexDescriptionInfo,
+  IndexDirection,
+  IndexSpecification,
+  ListIndexesOptions
+} from './operations/indexes';
+export type { InsertManyResult, InsertOneOptions, InsertOneResult } from './operations/insert';
+export type { CollectionInfo, ListCollectionsOptions } from './operations/list_collections';
+export type { ListDatabasesOptions, ListDatabasesResult } from './operations/list_databases';
+export type { AbstractOperation, Hint, OperationOptions } from './operations/operation';
+export type { ProfilingLevelOptions } from './operations/profiling_level';
+export type { RemoveUserOptions } from './operations/remove_user';
+export type { RenameOptions } from './operations/rename';
+export type { RunCommandOptions } from './operations/run_command';
+export type { SearchIndexDescription } from './operations/search_indexes/create';
+export type { SetProfilingLevelOptions } from './operations/set_profiling_level';
+export type { DbStatsOptions } from './operations/stats';
+export type {
+  ReplaceOptions,
+  UpdateOptions,
+  UpdateResult,
+  UpdateStatement
+} from './operations/update';
+export type { ValidateCollectionOptions } from './operations/validate_collection';
+export type { ReadConcernLike } from './read_concern';
+export type {
+  HedgeOptions,
+  ReadPreferenceFromOptions,
+  ReadPreferenceLike,
+  ReadPreferenceLikeOptions,
+  ReadPreferenceOptions
+} from './read_preference';
+export type { AsyncDisposable } from './resource_management';
+export type { ClusterTime } from './sdam/common';
+export type {
+  Monitor,
+  MonitorEvents,
+  MonitorInterval,
+  MonitorIntervalOptions,
+  MonitorOptions,
+  MonitorPrivate,
+  RTTPinger,
+  RTTPingerOptions,
+  RTTSampler,
+  ServerMonitoringMode
+} from './sdam/monitor';
+export type {
+  Server,
+  ServerCommandOptions,
+  ServerEvents,
+  ServerOptions,
+  ServerPrivate
+} from './sdam/server';
+export type {
+  ServerDescription,
+  ServerDescriptionOptions,
+  TagSet,
+  TopologyVersion
+} from './sdam/server_description';
+export type { ServerSelector } from './sdam/server_selection';
+export type { SrvPoller, SrvPollerEvents, SrvPollerOptions } from './sdam/srv_polling';
+export type {
+  ConnectOptions,
+  SelectServerOptions,
+  ServerCapabilities,
+  ServerSelectionCallback,
+  ServerSelectionRequest,
+  Topology,
+  TopologyEvents,
+  TopologyOptions,
+  TopologyPrivate
+} from './sdam/topology';
+export type { TopologyDescription, TopologyDescriptionOptions } from './sdam/topology_description';
+export type {
+  ClientSessionEvents,
+  ClientSessionOptions,
+  EndSessionOptions,
+  ServerSession,
+  ServerSessionId,
+  ServerSessionPool,
+  WithTransactionCallback
+} from './sessions';
+export type { Sort, SortDirection, SortDirectionForCmd, SortForCmd } from './sort';
+export type {
+  CSOTTimeoutContext,
+  CSOTTimeoutContextOptions,
+  LegacyTimeoutContext,
+  LegacyTimeoutContextOptions,
+  Timeout,
+  TimeoutContext,
+  TimeoutContextOptions
+} from './timeout';
+export type { Transaction, TransactionOptions, TxnState } from './transactions';
+export type {
+  BufferPool,
+  Callback,
+  EventEmitterWithState,
+  HostAddress,
+  List,
+  MongoDBCollectionNamespace,
+  MongoDBNamespace
+} from './utils';
+export type { W, WriteConcernOptions, WriteConcernSettings } from './write_concern';
diff --git a/backend/node_modules/mongodb/src/mongo_client.ts b/backend/node_modules/mongodb/src/mongo_client.ts
new file mode 100644
index 0000000..bab3d2c
--- /dev/null
+++ b/backend/node_modules/mongodb/src/mongo_client.ts
@@ -0,0 +1,1029 @@
+import { promises as fs } from 'fs';
+import type { TcpNetConnectOpts } from 'net';
+import type { ConnectionOptions as TLSConnectionOptions, TLSSocketOptions } from 'tls';
+
+import { type BSONSerializeOptions, type Document, resolveBSONOptions } from './bson';
+import { ChangeStream, type ChangeStreamDocument, type ChangeStreamOptions } from './change_stream';
+import type { AutoEncrypter, AutoEncryptionOptions } from './client-side-encryption/auto_encrypter';
+import {
+  type AuthMechanismProperties,
+  DEFAULT_ALLOWED_HOSTS,
+  type MongoCredentials
+} from './cmap/auth/mongo_credentials';
+import { type TokenCache } from './cmap/auth/mongodb_oidc/token_cache';
+import { AuthMechanism } from './cmap/auth/providers';
+import type { LEGAL_TCP_SOCKET_OPTIONS, LEGAL_TLS_SOCKET_OPTIONS } from './cmap/connect';
+import type { Connection } from './cmap/connection';
+import type { ClientMetadata } from './cmap/handshake/client_metadata';
+import type { CompressorName } from './cmap/wire_protocol/compression';
+import { parseOptions, resolveSRVRecord } from './connection_string';
+import { MONGO_CLIENT_EVENTS } from './constants';
+import { Db, type DbOptions } from './db';
+import type { Encrypter } from './encrypter';
+import { MongoInvalidArgumentError } from './error';
+import { MongoClientAuthProviders } from './mongo_client_auth_providers';
+import {
+  type LogComponentSeveritiesClientOptions,
+  type MongoDBLogWritable,
+  MongoLogger,
+  type MongoLoggerOptions,
+  SeverityLevel
+} from './mongo_logger';
+import { TypedEventEmitter } from './mongo_types';
+import {
+  type ClientBulkWriteModel,
+  type ClientBulkWriteOptions,
+  type ClientBulkWriteResult
+} from './operations/client_bulk_write/common';
+import { ClientBulkWriteExecutor } from './operations/client_bulk_write/executor';
+import { executeOperation } from './operations/execute_operation';
+import { RunAdminCommandOperation } from './operations/run_command';
+import type { ReadConcern, ReadConcernLevel, ReadConcernLike } from './read_concern';
+import { ReadPreference, type ReadPreferenceMode } from './read_preference';
+import { type AsyncDisposable, configureResourceManagement } from './resource_management';
+import type { ServerMonitoringMode } from './sdam/monitor';
+import type { TagSet } from './sdam/server_description';
+import { readPreferenceServerSelector } from './sdam/server_selection';
+import type { SrvPoller } from './sdam/srv_polling';
+import { Topology, type TopologyEvents } from './sdam/topology';
+import { ClientSession, type ClientSessionOptions, ServerSessionPool } from './sessions';
+import {
+  COSMOS_DB_CHECK,
+  COSMOS_DB_MSG,
+  DOCUMENT_DB_CHECK,
+  DOCUMENT_DB_MSG,
+  type HostAddress,
+  hostMatchesWildcards,
+  isHostMatch,
+  type MongoDBNamespace,
+  ns,
+  resolveOptions,
+  squashError
+} from './utils';
+import type { W, WriteConcern, WriteConcernSettings } from './write_concern';
+
+/** @public */
+export const ServerApiVersion = Object.freeze({
+  v1: '1'
+} as const);
+
+/** @public */
+export type ServerApiVersion = (typeof ServerApiVersion)[keyof typeof ServerApiVersion];
+
+/** @public */
+export interface ServerApi {
+  version: ServerApiVersion;
+  strict?: boolean;
+  deprecationErrors?: boolean;
+}
+
+/** @public */
+export interface DriverInfo {
+  name?: string;
+  version?: string;
+  platform?: string;
+}
+
+/** @public */
+export interface Auth {
+  /** The username for auth */
+  username?: string;
+  /** The password for auth */
+  password?: string;
+}
+
+/** @public */
+export interface PkFactory {
+  createPk(): any;
+}
+
+/** @public */
+export type SupportedTLSConnectionOptions = Pick<
+  TLSConnectionOptions & {
+    allowPartialTrustChain?: boolean;
+  },
+  (typeof LEGAL_TLS_SOCKET_OPTIONS)[number]
+>;
+
+/** @public */
+export type SupportedTLSSocketOptions = Pick<
+  TLSSocketOptions,
+  Extract<keyof TLSSocketOptions, (typeof LEGAL_TLS_SOCKET_OPTIONS)[number]>
+>;
+
+/** @public */
+export type SupportedSocketOptions = Pick<
+  TcpNetConnectOpts & { autoSelectFamily?: boolean; autoSelectFamilyAttemptTimeout?: number },
+  (typeof LEGAL_TCP_SOCKET_OPTIONS)[number]
+>;
+
+/** @public */
+export type SupportedNodeConnectionOptions = SupportedTLSConnectionOptions &
+  SupportedTLSSocketOptions &
+  SupportedSocketOptions;
+
+/**
+ * Describes all possible URI query options for the mongo client
+ * @public
+ * @see https://www.mongodb.com/docs/manual/reference/connection-string
+ */
+export interface MongoClientOptions extends BSONSerializeOptions, SupportedNodeConnectionOptions {
+  /** Specifies the name of the replica set, if the mongod is a member of a replica set. */
+  replicaSet?: string;
+  /**
+   * @experimental
+   * Specifies the time an operation will run until it throws a timeout error
+   */
+  timeoutMS?: number;
+  /** Enables or disables TLS/SSL for the connection. */
+  tls?: boolean;
+  /** A boolean to enable or disables TLS/SSL for the connection. (The ssl option is equivalent to the tls option.) */
+  ssl?: boolean;
+  /** Specifies the location of a local .pem file that contains either the client's TLS/SSL certificate and key. */
+  tlsCertificateKeyFile?: string;
+  /** Specifies the password to de-crypt the tlsCertificateKeyFile. */
+  tlsCertificateKeyFilePassword?: string;
+  /** Specifies the location of a local .pem file that contains the root certificate chain from the Certificate Authority. This file is used to validate the certificate presented by the mongod/mongos instance. */
+  tlsCAFile?: string;
+  /** Specifies the location of a local CRL .pem file that contains the client revokation list. */
+  tlsCRLFile?: string;
+  /** Bypasses validation of the certificates presented by the mongod/mongos instance */
+  tlsAllowInvalidCertificates?: boolean;
+  /** Disables hostname validation of the certificate presented by the mongod/mongos instance. */
+  tlsAllowInvalidHostnames?: boolean;
+  /** Disables various certificate validations. */
+  tlsInsecure?: boolean;
+  /** The time in milliseconds to attempt a connection before timing out. */
+  connectTimeoutMS?: number;
+  /** The time in milliseconds to attempt a send or receive on a socket before the attempt times out. */
+  socketTimeoutMS?: number;
+  /** An array or comma-delimited string of compressors to enable network compression for communication between this client and a mongod/mongos instance. */
+  compressors?: CompressorName[] | string;
+  /** An integer that specifies the compression level if using zlib for network compression. */
+  zlibCompressionLevel?: 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | undefined;
+  /** The maximum number of hosts to connect to when using an srv connection string, a setting of `0` means unlimited hosts */
+  srvMaxHosts?: number;
+  /**
+   * Modifies the srv URI to look like:
+   *
+   * `_{srvServiceName}._tcp.{hostname}.{domainname}`
+   *
+   * Querying this DNS URI is expected to respond with SRV records
+   */
+  srvServiceName?: string;
+  /** The maximum number of connections in the connection pool. */
+  maxPoolSize?: number;
+  /** The minimum number of connections in the connection pool. */
+  minPoolSize?: number;
+  /** The maximum number of connections that may be in the process of being established concurrently by the connection pool. */
+  maxConnecting?: number;
+  /** The maximum number of milliseconds that a connection can remain idle in the pool before being removed and closed. */
+  maxIdleTimeMS?: number;
+  /** The maximum time in milliseconds that a thread can wait for a connection to become available. */
+  waitQueueTimeoutMS?: number;
+  /** Specify a read concern for the collection (only MongoDB 3.2 or higher supported) */
+  readConcern?: ReadConcernLike;
+  /** The level of isolation */
+  readConcernLevel?: ReadConcernLevel;
+  /** Specifies the read preferences for this connection */
+  readPreference?: ReadPreferenceMode | ReadPreference;
+  /** Specifies, in seconds, how stale a secondary can be before the client stops using it for read operations. */
+  maxStalenessSeconds?: number;
+  /** Specifies the tags document as a comma-separated list of colon-separated key-value pairs.  */
+  readPreferenceTags?: TagSet[];
+  /** The auth settings for when connection to server. */
+  auth?: Auth;
+  /** Specify the database name associated with the user’s credentials. */
+  authSource?: string;
+  /** Specify the authentication mechanism that MongoDB will use to authenticate the connection. */
+  authMechanism?: AuthMechanism;
+  /** Specify properties for the specified authMechanism as a comma-separated list of colon-separated key-value pairs. */
+  authMechanismProperties?: AuthMechanismProperties;
+  /** The size (in milliseconds) of the latency window for selecting among multiple suitable MongoDB instances. */
+  localThresholdMS?: number;
+  /** Specifies how long (in milliseconds) to block for server selection before throwing an exception.  */
+  serverSelectionTimeoutMS?: number;
+  /** heartbeatFrequencyMS controls when the driver checks the state of the MongoDB deployment. Specify the interval (in milliseconds) between checks, counted from the end of the previous check until the beginning of the next one. */
+  heartbeatFrequencyMS?: number;
+  /** Sets the minimum heartbeat frequency. In the event that the driver has to frequently re-check a server's availability, it will wait at least this long since the previous check to avoid wasted effort. */
+  minHeartbeatFrequencyMS?: number;
+  /** The name of the application that created this MongoClient instance. MongoDB 3.4 and newer will print this value in the server log upon establishing each connection. It is also recorded in the slow query log and profile collections */
+  appName?: string;
+  /** Enables retryable reads. */
+  retryReads?: boolean;
+  /** Enable retryable writes. */
+  retryWrites?: boolean;
+  /** Allow a driver to force a Single topology type with a connection string containing one host */
+  directConnection?: boolean;
+  /** Instruct the driver it is connecting to a load balancer fronting a mongos like service */
+  loadBalanced?: boolean;
+  /**
+   * The write concern w value
+   * @deprecated Please use the `writeConcern` option instead
+   */
+  w?: W;
+  /**
+   * The write concern timeout
+   * @deprecated Please use the `writeConcern` option instead
+   */
+  wtimeoutMS?: number;
+  /**
+   * The journal write concern
+   * @deprecated Please use the `writeConcern` option instead
+   */
+  journal?: boolean;
+  /**
+   * A MongoDB WriteConcern, which describes the level of acknowledgement
+   * requested from MongoDB for write operations.
+   *
+   * @see https://www.mongodb.com/docs/manual/reference/write-concern/
+   */
+  writeConcern?: WriteConcern | WriteConcernSettings;
+  /** TCP Connection no delay */
+  noDelay?: boolean;
+  /** Force server to assign `_id` values instead of driver */
+  forceServerObjectId?: boolean;
+  /** A primary key factory function for generation of custom `_id` keys */
+  pkFactory?: PkFactory;
+  /** Enable command monitoring for this client */
+  monitorCommands?: boolean;
+  /** Server API version */
+  serverApi?: ServerApi | ServerApiVersion;
+  /**
+   * Optionally enable in-use auto encryption
+   *
+   * @remarks
+   *  Automatic encryption is an enterprise only feature that only applies to operations on a collection. Automatic encryption is not supported for operations on a database or view, and operations that are not bypassed will result in error
+   *  (see [libmongocrypt: Auto Encryption Allow-List](https://github.com/mongodb/specifications/blob/master/source/client-side-encryption/client-side-encryption.md#libmongocrypt-auto-encryption-allow-list)). To bypass automatic encryption for all operations, set bypassAutoEncryption=true in AutoEncryptionOpts.
+   *
+   *  Automatic encryption requires the authenticated user to have the [listCollections privilege action](https://www.mongodb.com/docs/manual/reference/command/listCollections/#dbcmd.listCollections).
+   *
+   *  If a MongoClient with a limited connection pool size (i.e a non-zero maxPoolSize) is configured with AutoEncryptionOptions, a separate internal MongoClient is created if any of the following are true:
+   *  - AutoEncryptionOptions.keyVaultClient is not passed.
+   *  - AutoEncryptionOptions.bypassAutomaticEncryption is false.
+   *
+   * If an internal MongoClient is created, it is configured with the same options as the parent MongoClient except minPoolSize is set to 0 and AutoEncryptionOptions is omitted.
+   */
+  autoEncryption?: AutoEncryptionOptions;
+  /** Allows a wrapping driver to amend the client metadata generated by the driver to include information about the wrapping driver */
+  driverInfo?: DriverInfo;
+  /** Configures a Socks5 proxy host used for creating TCP connections. */
+  proxyHost?: string;
+  /** Configures a Socks5 proxy port used for creating TCP connections. */
+  proxyPort?: number;
+  /** Configures a Socks5 proxy username when the proxy in proxyHost requires username/password authentication. */
+  proxyUsername?: string;
+  /** Configures a Socks5 proxy password when the proxy in proxyHost requires username/password authentication. */
+  proxyPassword?: string;
+  /** Instructs the driver monitors to use a specific monitoring mode */
+  serverMonitoringMode?: ServerMonitoringMode;
+
+  /** @internal */
+  srvPoller?: SrvPoller;
+  /** @internal */
+  connectionType?: typeof Connection;
+  /**
+   * @internal
+   * TODO: NODE-5671 - remove internal flag
+   */
+  mongodbLogPath?: 'stderr' | 'stdout' | MongoDBLogWritable;
+  /**
+   * @internal
+   * TODO: NODE-5671 - remove internal flag
+   */
+  mongodbLogComponentSeverities?: LogComponentSeveritiesClientOptions;
+  /**
+   * @internal
+   * TODO: NODE-5671 - remove internal flag
+   */
+  mongodbLogMaxDocumentLength?: number;
+
+  /** @internal */
+  [featureFlag: symbol]: any;
+}
+
+/** @public */
+export type WithSessionCallback<T = unknown> = (session: ClientSession) => Promise<T>;
+
+/** @internal */
+export interface MongoClientPrivate {
+  url: string;
+  bsonOptions: BSONSerializeOptions;
+  namespace: MongoDBNamespace;
+  hasBeenClosed: boolean;
+  authProviders: MongoClientAuthProviders;
+  /**
+   * We keep a reference to the sessions that are acquired from the pool.
+   * - used to track and close all sessions in client.close() (which is non-standard behavior)
+   * - used to notify the leak checker in our tests if test author forgot to clean up explicit sessions
+   */
+  readonly activeSessions: Set<ClientSession>;
+  readonly sessionPool: ServerSessionPool;
+  readonly options: MongoOptions;
+  readonly readConcern?: ReadConcern;
+  readonly writeConcern?: WriteConcern;
+  readonly readPreference: ReadPreference;
+  readonly isMongoClient: true;
+}
+
+/** @public */
+export type MongoClientEvents = Pick<TopologyEvents, (typeof MONGO_CLIENT_EVENTS)[number]> & {
+  // In previous versions the open event emitted a topology, in an effort to no longer
+  // expose internals but continue to expose this useful event API, it now emits a mongoClient
+  open(mongoClient: MongoClient): void;
+};
+
+/** @internal */
+const kOptions = Symbol('options');
+
+/**
+ * The **MongoClient** class is a class that allows for making Connections to MongoDB.
+ * @public
+ *
+ * @remarks
+ * The programmatically provided options take precedence over the URI options.
+ *
+ * @example
+ * ```ts
+ * import { MongoClient } from 'mongodb';
+ *
+ * // Enable command monitoring for debugging
+ * const client = new MongoClient('mongodb://localhost:27017', { monitorCommands: true });
+ *
+ * client.on('commandStarted', started => console.log(started));
+ * client.db().collection('pets');
+ * await client.insertOne({ name: 'spot', kind: 'dog' });
+ * ```
+ */
+export class MongoClient extends TypedEventEmitter<MongoClientEvents> implements AsyncDisposable {
+  /** @internal */
+  s: MongoClientPrivate;
+  /** @internal */
+  topology?: Topology;
+  /** @internal */
+  override readonly mongoLogger: MongoLogger | undefined;
+  /** @internal */
+  private connectionLock?: Promise<this>;
+
+  /**
+   * The consolidate, parsed, transformed and merged options.
+   * @internal
+   */
+  [kOptions]: MongoOptions;
+
+  constructor(url: string, options?: MongoClientOptions) {
+    super();
+
+    this[kOptions] = parseOptions(url, this, options);
+
+    const shouldSetLogger = Object.values(
+      this[kOptions].mongoLoggerOptions.componentSeverities
+    ).some(value => value !== SeverityLevel.OFF);
+    this.mongoLogger = shouldSetLogger
+      ? new MongoLogger(this[kOptions].mongoLoggerOptions)
+      : undefined;
+
+    // eslint-disable-next-line @typescript-eslint/no-this-alias
+    const client = this;
+
+    // The internal state
+    this.s = {
+      url,
+      bsonOptions: resolveBSONOptions(this[kOptions]),
+      namespace: ns('admin'),
+      hasBeenClosed: false,
+      sessionPool: new ServerSessionPool(this),
+      activeSessions: new Set(),
+      authProviders: new MongoClientAuthProviders(),
+
+      get options() {
+        return client[kOptions];
+      },
+      get readConcern() {
+        return client[kOptions].readConcern;
+      },
+      get writeConcern() {
+        return client[kOptions].writeConcern;
+      },
+      get readPreference() {
+        return client[kOptions].readPreference;
+      },
+      get isMongoClient(): true {
+        return true;
+      }
+    };
+    this.checkForNonGenuineHosts();
+  }
+
+  /**
+   * @beta
+   * @experimental
+   * An alias for {@link MongoClient.close|MongoClient.close()}.
+   */
+  declare [Symbol.asyncDispose]: () => Promise<void>;
+  /** @internal */
+  async asyncDispose() {
+    await this.close();
+  }
+
+  /** @internal */
+  private checkForNonGenuineHosts() {
+    const documentDBHostnames = this[kOptions].hosts.filter((hostAddress: HostAddress) =>
+      isHostMatch(DOCUMENT_DB_CHECK, hostAddress.host)
+    );
+    const srvHostIsDocumentDB = isHostMatch(DOCUMENT_DB_CHECK, this[kOptions].srvHost);
+
+    const cosmosDBHostnames = this[kOptions].hosts.filter((hostAddress: HostAddress) =>
+      isHostMatch(COSMOS_DB_CHECK, hostAddress.host)
+    );
+    const srvHostIsCosmosDB = isHostMatch(COSMOS_DB_CHECK, this[kOptions].srvHost);
+
+    if (documentDBHostnames.length !== 0 || srvHostIsDocumentDB) {
+      this.mongoLogger?.info('client', DOCUMENT_DB_MSG);
+    } else if (cosmosDBHostnames.length !== 0 || srvHostIsCosmosDB) {
+      this.mongoLogger?.info('client', COSMOS_DB_MSG);
+    }
+  }
+
+  /** @see MongoOptions */
+  get options(): Readonly<MongoOptions> {
+    return Object.freeze({ ...this[kOptions] });
+  }
+
+  get serverApi(): Readonly<ServerApi | undefined> {
+    return this[kOptions].serverApi && Object.freeze({ ...this[kOptions].serverApi });
+  }
+  /**
+   * Intended for APM use only
+   * @internal
+   */
+  get monitorCommands(): boolean {
+    return this[kOptions].monitorCommands;
+  }
+  set monitorCommands(value: boolean) {
+    this[kOptions].monitorCommands = value;
+  }
+
+  /** @internal */
+  get autoEncrypter(): AutoEncrypter | undefined {
+    return this[kOptions].autoEncrypter;
+  }
+
+  get readConcern(): ReadConcern | undefined {
+    return this.s.readConcern;
+  }
+
+  get writeConcern(): WriteConcern | undefined {
+    return this.s.writeConcern;
+  }
+
+  get readPreference(): ReadPreference {
+    return this.s.readPreference;
+  }
+
+  get bsonOptions(): BSONSerializeOptions {
+    return this.s.bsonOptions;
+  }
+
+  get timeoutMS(): number | undefined {
+    return this.s.options.timeoutMS;
+  }
+
+  /**
+   * Executes a client bulk write operation, available on server 8.0+.
+   * @param models - The client bulk write models.
+   * @param options - The client bulk write options.
+   * @returns A ClientBulkWriteResult for acknowledged writes and ok: 1 for unacknowledged writes.
+   */
+  async bulkWrite<SchemaMap extends Record<string, Document> = Record<string, Document>>(
+    models: ReadonlyArray<ClientBulkWriteModel<SchemaMap>>,
+    options?: ClientBulkWriteOptions
+  ): Promise<ClientBulkWriteResult> {
+    if (this.autoEncrypter) {
+      throw new MongoInvalidArgumentError(
+        'MongoClient bulkWrite does not currently support automatic encryption.'
+      );
+    }
+    // We do not need schema type information past this point ("as any" is fine)
+    return await new ClientBulkWriteExecutor(
+      this,
+      models as any,
+      resolveOptions(this, options)
+    ).execute();
+  }
+
+  /**
+   * Connect to MongoDB using a url
+   *
+   * @remarks
+   * Calling `connect` is optional since the first operation you perform will call `connect` if it's needed.
+   * `timeoutMS` will bound the time any operation can take before throwing a timeout error.
+   * However, when the operation being run is automatically connecting your `MongoClient` the `timeoutMS` will not apply to the time taken to connect the MongoClient.
+   * This means the time to setup the `MongoClient` does not count against `timeoutMS`.
+   * If you are using `timeoutMS` we recommend connecting your client explicitly in advance of any operation to avoid this inconsistent execution time.
+   *
+   * @see docs.mongodb.org/manual/reference/connection-string/
+   */
+  async connect(): Promise<this> {
+    if (this.connectionLock) {
+      return await this.connectionLock;
+    }
+
+    try {
+      this.connectionLock = this._connect();
+      await this.connectionLock;
+    } finally {
+      // release
+      this.connectionLock = undefined;
+    }
+
+    return this;
+  }
+
+  /**
+   * Create a topology to open the connection, must be locked to avoid topology leaks in concurrency scenario.
+   * Locking is enforced by the connect method.
+   *
+   * @internal
+   */
+  private async _connect(): Promise<this> {
+    if (this.topology && this.topology.isConnected()) {
+      return this;
+    }
+
+    const options = this[kOptions];
+
+    if (options.tls) {
+      if (typeof options.tlsCAFile === 'string') {
+        options.ca ??= await fs.readFile(options.tlsCAFile);
+      }
+      if (typeof options.tlsCRLFile === 'string') {
+        options.crl ??= await fs.readFile(options.tlsCRLFile);
+      }
+      if (typeof options.tlsCertificateKeyFile === 'string') {
+        if (!options.key || !options.cert) {
+          const contents = await fs.readFile(options.tlsCertificateKeyFile);
+          options.key ??= contents;
+          options.cert ??= contents;
+        }
+      }
+    }
+    if (typeof options.srvHost === 'string') {
+      const hosts = await resolveSRVRecord(options);
+
+      for (const [index, host] of hosts.entries()) {
+        options.hosts[index] = host;
+      }
+    }
+
+    // It is important to perform validation of hosts AFTER SRV resolution, to check the real hostname,
+    // but BEFORE we even attempt connecting with a potentially not allowed hostname
+    if (options.credentials?.mechanism === AuthMechanism.MONGODB_OIDC) {
+      const allowedHosts =
+        options.credentials?.mechanismProperties?.ALLOWED_HOSTS || DEFAULT_ALLOWED_HOSTS;
+      const isServiceAuth = !!options.credentials?.mechanismProperties?.ENVIRONMENT;
+      if (!isServiceAuth) {
+        for (const host of options.hosts) {
+          if (!hostMatchesWildcards(host.toHostPort().host, allowedHosts)) {
+            throw new MongoInvalidArgumentError(
+              `Host '${host}' is not valid for OIDC authentication with ALLOWED_HOSTS of '${allowedHosts.join(
+                ','
+              )}'`
+            );
+          }
+        }
+      }
+    }
+
+    this.topology = new Topology(this, options.hosts, options);
+    // Events can be emitted before initialization is complete so we have to
+    // save the reference to the topology on the client ASAP if the event handlers need to access it
+
+    this.topology.once(Topology.OPEN, () => this.emit('open', this));
+
+    for (const event of MONGO_CLIENT_EVENTS) {
+      this.topology.on(event, (...args: any[]) => this.emit(event, ...(args as any)));
+    }
+
+    const topologyConnect = async () => {
+      try {
+        await this.topology?.connect(options);
+      } catch (error) {
+        this.topology?.close();
+        throw error;
+      }
+    };
+
+    if (this.autoEncrypter) {
+      await this.autoEncrypter?.init();
+      await topologyConnect();
+      await options.encrypter.connectInternalClient();
+    } else {
+      await topologyConnect();
+    }
+
+    return this;
+  }
+
+  /**
+   * Cleans up client-side resources used by the MongoCLient and .  This includes:
+   *
+   * - Closes all open, unused connections (see note).
+   * - Ends all in-use sessions with {@link ClientSession#endSession|ClientSession.endSession()}.
+   * - Ends all unused sessions server-side.
+   * - Cleans up any resources being used for auto encryption if auto encryption is enabled.
+   *
+   * @remarks Any in-progress operations are not killed and any connections used by in progress operations
+   * will be cleaned up lazily as operations finish.
+   *
+   * @param force - Force close, emitting no events
+   */
+  async close(force = false): Promise<void> {
+    // There's no way to set hasBeenClosed back to false
+    Object.defineProperty(this.s, 'hasBeenClosed', {
+      value: true,
+      enumerable: true,
+      configurable: false,
+      writable: false
+    });
+
+    const activeSessionEnds = Array.from(this.s.activeSessions, session => session.endSession());
+    this.s.activeSessions.clear();
+
+    await Promise.all(activeSessionEnds);
+
+    if (this.topology == null) {
+      return;
+    }
+
+    // If we would attempt to select a server and get nothing back we short circuit
+    // to avoid the server selection timeout.
+    const selector = readPreferenceServerSelector(ReadPreference.primaryPreferred);
+    const topologyDescription = this.topology.description;
+    const serverDescriptions = Array.from(topologyDescription.servers.values());
+    const servers = selector(topologyDescription, serverDescriptions);
+    if (servers.length !== 0) {
+      const endSessions = Array.from(this.s.sessionPool.sessions, ({ id }) => id);
+      if (endSessions.length !== 0) {
+        try {
+          await executeOperation(
+            this,
+            new RunAdminCommandOperation(
+              { endSessions },
+              { readPreference: ReadPreference.primaryPreferred, noResponse: true }
+            )
+          );
+        } catch (error) {
+          squashError(error);
+        }
+      }
+    }
+
+    // clear out references to old topology
+    const topology = this.topology;
+    this.topology = undefined;
+
+    topology.close();
+
+    const { encrypter } = this[kOptions];
+    if (encrypter) {
+      await encrypter.close(this, force);
+    }
+  }
+
+  /**
+   * Create a new Db instance sharing the current socket connections.
+   *
+   * @param dbName - The name of the database we want to use. If not provided, use database name from connection string.
+   * @param options - Optional settings for Db construction
+   */
+  db(dbName?: string, options?: DbOptions): Db {
+    options = options ?? {};
+
+    // Default to db from connection string if not provided
+    if (!dbName) {
+      dbName = this.s.options.dbName;
+    }
+
+    // Copy the options and add out internal override of the not shared flag
+    const finalOptions = Object.assign({}, this[kOptions], options);
+
+    // Return the db object
+    const db = new Db(this, dbName, finalOptions);
+
+    // Return the database
+    return db;
+  }
+
+  /**
+   * Connect to MongoDB using a url
+   *
+   * @remarks
+   * Calling `connect` is optional since the first operation you perform will call `connect` if it's needed.
+   * `timeoutMS` will bound the time any operation can take before throwing a timeout error.
+   * However, when the operation being run is automatically connecting your `MongoClient` the `timeoutMS` will not apply to the time taken to connect the MongoClient.
+   * This means the time to setup the `MongoClient` does not count against `timeoutMS`.
+   * If you are using `timeoutMS` we recommend connecting your client explicitly in advance of any operation to avoid this inconsistent execution time.
+   *
+   * @remarks
+   * The programmatically provided options take precedence over the URI options.
+   *
+   * @see https://www.mongodb.com/docs/manual/reference/connection-string/
+   */
+  static async connect(url: string, options?: MongoClientOptions): Promise<MongoClient> {
+    const client = new this(url, options);
+    return await client.connect();
+  }
+
+  /**
+   * Creates a new ClientSession. When using the returned session in an operation
+   * a corresponding ServerSession will be created.
+   *
+   * @remarks
+   * A ClientSession instance may only be passed to operations being performed on the same
+   * MongoClient it was started from.
+   */
+  startSession(options?: ClientSessionOptions): ClientSession {
+    const session = new ClientSession(
+      this,
+      this.s.sessionPool,
+      { explicit: true, ...options },
+      this[kOptions]
+    );
+    this.s.activeSessions.add(session);
+    session.once('ended', () => {
+      this.s.activeSessions.delete(session);
+    });
+    return session;
+  }
+
+  /**
+   * A convenience method for creating and handling the clean up of a ClientSession.
+   * The session will always be ended when the executor finishes.
+   *
+   * @param executor - An executor function that all operations using the provided session must be invoked in
+   * @param options - optional settings for the session
+   */
+  async withSession<T = any>(executor: WithSessionCallback<T>): Promise<T>;
+  async withSession<T = any>(
+    options: ClientSessionOptions,
+    executor: WithSessionCallback<T>
+  ): Promise<T>;
+  async withSession<T = any>(
+    optionsOrExecutor: ClientSessionOptions | WithSessionCallback<T>,
+    executor?: WithSessionCallback<T>
+  ): Promise<T> {
+    const options = {
+      // Always define an owner
+      owner: Symbol(),
+      // If it's an object inherit the options
+      ...(typeof optionsOrExecutor === 'object' ? optionsOrExecutor : {})
+    };
+
+    const withSessionCallback =
+      typeof optionsOrExecutor === 'function' ? optionsOrExecutor : executor;
+
+    if (withSessionCallback == null) {
+      throw new MongoInvalidArgumentError('Missing required callback parameter');
+    }
+
+    const session = this.startSession(options);
+
+    try {
+      return await withSessionCallback(session);
+    } finally {
+      try {
+        await session.endSession();
+      } catch (error) {
+        squashError(error);
+      }
+    }
+  }
+
+  /**
+   * Create a new Change Stream, watching for new changes (insertions, updates,
+   * replacements, deletions, and invalidations) in this cluster. Will ignore all
+   * changes to system collections, as well as the local, admin, and config databases.
+   *
+   * @remarks
+   * watch() accepts two generic arguments for distinct use cases:
+   * - The first is to provide the schema that may be defined for all the data within the current cluster
+   * - The second is to override the shape of the change stream document entirely, if it is not provided the type will default to ChangeStreamDocument of the first argument
+   *
+   * @remarks
+   * When `timeoutMS` is configured for a change stream, it will have different behaviour depending
+   * on whether the change stream is in iterator mode or emitter mode. In both cases, a change
+   * stream will time out if it does not receive a change event within `timeoutMS` of the last change
+   * event.
+   *
+   * Note that if a change stream is consistently timing out when watching a collection, database or
+   * client that is being changed, then this may be due to the server timing out before it can finish
+   * processing the existing oplog. To address this, restart the change stream with a higher
+   * `timeoutMS`.
+   *
+   * If the change stream times out the initial aggregate operation to establish the change stream on
+   * the server, then the client will close the change stream. If the getMore calls to the server
+   * time out, then the change stream will be left open, but will throw a MongoOperationTimeoutError
+   * when in iterator mode and emit an error event that returns a MongoOperationTimeoutError in
+   * emitter mode.
+   *
+   * To determine whether or not the change stream is still open following a timeout, check the
+   * {@link ChangeStream.closed} getter.
+   *
+   * @example
+   * In iterator mode, if a next() call throws a timeout error, it will attempt to resume the change stream.
+   * The next call can just be retried after this succeeds.
+   * ```ts
+   * const changeStream = collection.watch([], { timeoutMS: 100 });
+   * try {
+   *     await changeStream.next();
+   * } catch (e) {
+   *     if (e instanceof MongoOperationTimeoutError && !changeStream.closed) {
+   *       await changeStream.next();
+   *     }
+   *     throw e;
+   * }
+   * ```
+   *
+   * @example
+   * In emitter mode, if the change stream goes `timeoutMS` without emitting a change event, it will
+   * emit an error event that returns a MongoOperationTimeoutError, but will not close the change
+   * stream unless the resume attempt fails. There is no need to re-establish change listeners as
+   * this will automatically continue emitting change events once the resume attempt completes.
+   *
+   * ```ts
+   * const changeStream = collection.watch([], { timeoutMS: 100 });
+   * changeStream.on('change', console.log);
+   * changeStream.on('error', e => {
+   *     if (e instanceof MongoOperationTimeoutError && !changeStream.closed) {
+   *         // do nothing
+   *     } else {
+   *         changeStream.close();
+   *     }
+   * });
+   * ```
+   * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents. This allows for filtering (using $match) and manipulating the change stream documents.
+   * @param options - Optional settings for the command
+   * @typeParam TSchema - Type of the data being detected by the change stream
+   * @typeParam TChange - Type of the whole change stream document emitted
+   */
+  watch<
+    TSchema extends Document = Document,
+    TChange extends Document = ChangeStreamDocument<TSchema>
+  >(pipeline: Document[] = [], options: ChangeStreamOptions = {}): ChangeStream<TSchema, TChange> {
+    // Allow optionally not specifying a pipeline
+    if (!Array.isArray(pipeline)) {
+      options = pipeline;
+      pipeline = [];
+    }
+
+    return new ChangeStream<TSchema, TChange>(this, pipeline, resolveOptions(this, options));
+  }
+}
+
+configureResourceManagement(MongoClient.prototype);
+
+/**
+ * Parsed Mongo Client Options.
+ *
+ * User supplied options are documented by `MongoClientOptions`.
+ *
+ * **NOTE:** The client's options parsing is subject to change to support new features.
+ * This type is provided to aid with inspection of options after parsing, it should not be relied upon programmatically.
+ *
+ * Options are sourced from:
+ * - connection string
+ * - options object passed to the MongoClient constructor
+ * - file system (ex. tls settings)
+ * - environment variables
+ * - DNS SRV records and TXT records
+ *
+ * Not all options may be present after client construction as some are obtained from asynchronous operations.
+ *
+ * @public
+ */
+export interface MongoOptions
+  extends Required<
+      Pick<
+        MongoClientOptions,
+        | 'autoEncryption'
+        | 'connectTimeoutMS'
+        | 'directConnection'
+        | 'driverInfo'
+        | 'forceServerObjectId'
+        | 'minHeartbeatFrequencyMS'
+        | 'heartbeatFrequencyMS'
+        | 'localThresholdMS'
+        | 'maxConnecting'
+        | 'maxIdleTimeMS'
+        | 'maxPoolSize'
+        | 'minPoolSize'
+        | 'monitorCommands'
+        | 'noDelay'
+        | 'pkFactory'
+        | 'raw'
+        | 'replicaSet'
+        | 'retryReads'
+        | 'retryWrites'
+        | 'serverSelectionTimeoutMS'
+        | 'socketTimeoutMS'
+        | 'srvMaxHosts'
+        | 'srvServiceName'
+        | 'tlsAllowInvalidCertificates'
+        | 'tlsAllowInvalidHostnames'
+        | 'tlsInsecure'
+        | 'waitQueueTimeoutMS'
+        | 'zlibCompressionLevel'
+      >
+    >,
+    SupportedNodeConnectionOptions {
+  appName?: string;
+  hosts: HostAddress[];
+  srvHost?: string;
+  credentials?: MongoCredentials;
+  readPreference: ReadPreference;
+  readConcern: ReadConcern;
+  loadBalanced: boolean;
+  directConnection: boolean;
+  serverApi: ServerApi;
+  compressors: CompressorName[];
+  writeConcern: WriteConcern;
+  dbName: string;
+  metadata: ClientMetadata;
+  /** @internal */
+  extendedMetadata: Promise<Document>;
+  /** @internal */
+  autoEncrypter?: AutoEncrypter;
+  /** @internal */
+  tokenCache?: TokenCache;
+  proxyHost?: string;
+  proxyPort?: number;
+  proxyUsername?: string;
+  proxyPassword?: string;
+  serverMonitoringMode: ServerMonitoringMode;
+  /** @internal */
+  connectionType?: typeof Connection;
+  /** @internal */
+  authProviders: MongoClientAuthProviders;
+  /** @internal */
+  encrypter: Encrypter;
+  /** @internal */
+  userSpecifiedAuthSource: boolean;
+  /** @internal */
+  userSpecifiedReplicaSet: boolean;
+
+  /**
+   * # NOTE ABOUT TLS Options
+   *
+   * If `tls` is provided as an option, it is equivalent to setting the `ssl` option.
+   *
+   * NodeJS native TLS options are passed through to the socket and retain their original types.
+   *
+   * ### Additional options:
+   *
+   * | nodejs native option  | driver spec equivalent option name            | driver option type |
+   * |:----------------------|:----------------------------------------------|:-------------------|
+   * | `ca`                  | `tlsCAFile`                                   | `string`           |
+   * | `crl`                 | `tlsCRLFile`                                  | `string`           |
+   * | `cert`                | `tlsCertificateKeyFile`                       | `string`           |
+   * | `key`                 | `tlsCertificateKeyFile`                       | `string`           |
+   * | `passphrase`          | `tlsCertificateKeyFilePassword`               | `string`           |
+   * | `rejectUnauthorized`  | `tlsAllowInvalidCertificates`                 | `boolean`          |
+   * | `checkServerIdentity` | `tlsAllowInvalidHostnames`                    | `boolean`          |
+   * | see note below        | `tlsInsecure`                                 | `boolean`          |
+   *
+   * If `tlsInsecure` is set to `true`, then it will set the node native options `checkServerIdentity`
+   * to a no-op and `rejectUnauthorized` to `false`.
+   *
+   * If `tlsInsecure` is set to `false`, then it will set the node native options `checkServerIdentity`
+   * to a no-op and `rejectUnauthorized` to the inverse value of `tlsAllowInvalidCertificates`. If
+   * `tlsAllowInvalidCertificates` is not set, then `rejectUnauthorized` will be set to `true`.
+   *
+   * ### Note on `tlsCAFile`, `tlsCertificateKeyFile` and `tlsCRLFile`
+   *
+   * The files specified by the paths passed in to the `tlsCAFile`, `tlsCertificateKeyFile` and `tlsCRLFile`
+   * fields are read lazily on the first call to `MongoClient.connect`. Once these files have been read and
+   * the `ca`, `cert`, `crl` and `key` fields are populated, they will not be read again on subsequent calls to
+   * `MongoClient.connect`. As a result, until the first call to `MongoClient.connect`, the `ca`,
+   * `cert`, `crl` and `key` fields will be undefined.
+   */
+  tls: boolean;
+  tlsCAFile?: string;
+  tlsCRLFile?: string;
+  tlsCertificateKeyFile?: string;
+
+  /** @internal */
+  [featureFlag: symbol]: any;
+
+  /**
+   * @internal
+   * TODO: NODE-5671 - remove internal flag
+   */
+  mongoLoggerOptions: MongoLoggerOptions;
+  /**
+   * @internal
+   * TODO: NODE-5671 - remove internal flag
+   */
+  mongodbLogPath?: 'stderr' | 'stdout' | MongoDBLogWritable;
+  timeoutMS?: number;
+}
diff --git a/backend/node_modules/mongodb/src/mongo_client_auth_providers.ts b/backend/node_modules/mongodb/src/mongo_client_auth_providers.ts
new file mode 100644
index 0000000..c23d515
--- /dev/null
+++ b/backend/node_modules/mongodb/src/mongo_client_auth_providers.ts
@@ -0,0 +1,98 @@
+import { type AuthProvider } from './cmap/auth/auth_provider';
+import { GSSAPI } from './cmap/auth/gssapi';
+import { type AuthMechanismProperties } from './cmap/auth/mongo_credentials';
+import { MongoDBAWS } from './cmap/auth/mongodb_aws';
+import { MongoDBOIDC, OIDC_WORKFLOWS, type Workflow } from './cmap/auth/mongodb_oidc';
+import { AutomatedCallbackWorkflow } from './cmap/auth/mongodb_oidc/automated_callback_workflow';
+import { HumanCallbackWorkflow } from './cmap/auth/mongodb_oidc/human_callback_workflow';
+import { TokenCache } from './cmap/auth/mongodb_oidc/token_cache';
+import { Plain } from './cmap/auth/plain';
+import { AuthMechanism } from './cmap/auth/providers';
+import { ScramSHA1, ScramSHA256 } from './cmap/auth/scram';
+import { X509 } from './cmap/auth/x509';
+import { MongoInvalidArgumentError } from './error';
+
+/** @internal */
+const AUTH_PROVIDERS = new Map<AuthMechanism | string, (workflow?: Workflow) => AuthProvider>([
+  [AuthMechanism.MONGODB_AWS, () => new MongoDBAWS()],
+  [
+    AuthMechanism.MONGODB_CR,
+    () => {
+      throw new MongoInvalidArgumentError(
+        'MONGODB-CR is no longer a supported auth mechanism in MongoDB 4.0+'
+      );
+    }
+  ],
+  [AuthMechanism.MONGODB_GSSAPI, () => new GSSAPI()],
+  [AuthMechanism.MONGODB_OIDC, (workflow?: Workflow) => new MongoDBOIDC(workflow)],
+  [AuthMechanism.MONGODB_PLAIN, () => new Plain()],
+  [AuthMechanism.MONGODB_SCRAM_SHA1, () => new ScramSHA1()],
+  [AuthMechanism.MONGODB_SCRAM_SHA256, () => new ScramSHA256()],
+  [AuthMechanism.MONGODB_X509, () => new X509()]
+]);
+
+/**
+ * Create a set of providers per client
+ * to avoid sharing the provider's cache between different clients.
+ * @internal
+ */
+export class MongoClientAuthProviders {
+  private existingProviders: Map<AuthMechanism | string, AuthProvider> = new Map();
+
+  /**
+   * Get or create an authentication provider based on the provided mechanism.
+   * We don't want to create all providers at once, as some providers may not be used.
+   * @param name - The name of the provider to get or create.
+   * @param credentials - The credentials.
+   * @returns The provider.
+   * @throws MongoInvalidArgumentError if the mechanism is not supported.
+   * @internal
+   */
+  getOrCreateProvider(
+    name: AuthMechanism | string,
+    authMechanismProperties: AuthMechanismProperties
+  ): AuthProvider {
+    const authProvider = this.existingProviders.get(name);
+    if (authProvider) {
+      return authProvider;
+    }
+
+    const providerFunction = AUTH_PROVIDERS.get(name);
+    if (!providerFunction) {
+      throw new MongoInvalidArgumentError(`authMechanism ${name} not supported`);
+    }
+
+    let provider;
+    if (name === AuthMechanism.MONGODB_OIDC) {
+      provider = providerFunction(this.getWorkflow(authMechanismProperties));
+    } else {
+      provider = providerFunction();
+    }
+
+    this.existingProviders.set(name, provider);
+    return provider;
+  }
+
+  /**
+   * Gets either a device workflow or callback workflow.
+   */
+  getWorkflow(authMechanismProperties: AuthMechanismProperties): Workflow {
+    if (authMechanismProperties.OIDC_HUMAN_CALLBACK) {
+      return new HumanCallbackWorkflow(
+        new TokenCache(),
+        authMechanismProperties.OIDC_HUMAN_CALLBACK
+      );
+    } else if (authMechanismProperties.OIDC_CALLBACK) {
+      return new AutomatedCallbackWorkflow(new TokenCache(), authMechanismProperties.OIDC_CALLBACK);
+    } else {
+      const environment = authMechanismProperties.ENVIRONMENT;
+      const workflow = OIDC_WORKFLOWS.get(environment)?.();
+      if (!workflow) {
+        throw new MongoInvalidArgumentError(
+          `Could not load workflow for environment ${authMechanismProperties.ENVIRONMENT}`
+        );
+      }
+      return workflow;
+    }
+  }
+}
diff --git a/backend/node_modules/mongodb/src/mongo_logger.ts b/backend/node_modules/mongodb/src/mongo_logger.ts
new file mode 100644
index 0000000..f83c161
--- /dev/null
+++ b/backend/node_modules/mongodb/src/mongo_logger.ts
@@ -0,0 +1,930 @@
+import { inspect, promisify } from 'util';
+
+import { type Document, EJSON, type EJSONOptions, type ObjectId } from './bson';
+import type { CommandStartedEvent } from './cmap/command_monitoring_events';
+import type {
+  ConnectionCheckedInEvent,
+  ConnectionCheckedOutEvent,
+  ConnectionCheckOutFailedEvent,
+  ConnectionCheckOutStartedEvent,
+  ConnectionClosedEvent,
+  ConnectionCreatedEvent,
+  ConnectionPoolClearedEvent,
+  ConnectionPoolClosedEvent,
+  ConnectionPoolCreatedEvent,
+  ConnectionPoolReadyEvent,
+  ConnectionReadyEvent
+} from './cmap/connection_pool_events';
+import {
+  COMMAND_FAILED,
+  COMMAND_STARTED,
+  COMMAND_SUCCEEDED,
+  CONNECTION_CHECK_OUT_FAILED,
+  CONNECTION_CHECK_OUT_STARTED,
+  CONNECTION_CHECKED_IN,
+  CONNECTION_CHECKED_OUT,
+  CONNECTION_CLOSED,
+  CONNECTION_CREATED,
+  CONNECTION_POOL_CLEARED,
+  CONNECTION_POOL_CLOSED,
+  CONNECTION_POOL_CREATED,
+  CONNECTION_POOL_READY,
+  CONNECTION_READY,
+  SERVER_CLOSED,
+  SERVER_HEARTBEAT_FAILED,
+  SERVER_HEARTBEAT_STARTED,
+  SERVER_HEARTBEAT_SUCCEEDED,
+  SERVER_OPENING,
+  SERVER_SELECTION_FAILED,
+  SERVER_SELECTION_STARTED,
+  SERVER_SELECTION_SUCCEEDED,
+  TOPOLOGY_CLOSED,
+  TOPOLOGY_DESCRIPTION_CHANGED,
+  TOPOLOGY_OPENING,
+  WAITING_FOR_SUITABLE_SERVER
+} from './constants';
+import type {
+  ServerClosedEvent,
+  ServerOpeningEvent,
+  TopologyClosedEvent,
+  TopologyDescriptionChangedEvent,
+  TopologyOpeningEvent
+} from './sdam/events';
+import type {
+  ServerSelectionEvent,
+  ServerSelectionFailedEvent,
+  ServerSelectionStartedEvent,
+  ServerSelectionSucceededEvent,
+  WaitingForSuitableServerEvent
+} from './sdam/server_selection_events';
+import { HostAddress, isPromiseLike, parseUnsignedInteger } from './utils';
+
+/** @internal */
+export const SeverityLevel = Object.freeze({
+  EMERGENCY: 'emergency',
+  ALERT: 'alert',
+  CRITICAL: 'critical',
+  ERROR: 'error',
+  WARNING: 'warn',
+  NOTICE: 'notice',
+  INFORMATIONAL: 'info',
+  DEBUG: 'debug',
+  TRACE: 'trace',
+  OFF: 'off'
+} as const);
+
+/** @internal */
+export const DEFAULT_MAX_DOCUMENT_LENGTH = 1000;
+/** @internal */
+export type SeverityLevel = (typeof SeverityLevel)[keyof typeof SeverityLevel];
+
+/** @internal */
+class SeverityLevelMap extends Map<SeverityLevel | number, SeverityLevel | number> {
+  constructor(entries: [SeverityLevel | number, SeverityLevel | number][]) {
+    const newEntries: [number | SeverityLevel, SeverityLevel | number][] = [];
+    for (const [level, value] of entries) {
+      newEntries.push([value, level]);
+    }
+
+    newEntries.push(...entries);
+    super(newEntries);
+  }
+
+  getNumericSeverityLevel(severity: SeverityLevel): number {
+    return this.get(severity) as number;
+  }
+
+  getSeverityLevelName(level: number): SeverityLevel | undefined {
+    return this.get(level) as SeverityLevel | undefined;
+  }
+}
+
+/** @internal */
+export const SEVERITY_LEVEL_MAP = new SeverityLevelMap([
+  [SeverityLevel.OFF, -Infinity],
+  [SeverityLevel.EMERGENCY, 0],
+  [SeverityLevel.ALERT, 1],
+  [SeverityLevel.CRITICAL, 2],
+  [SeverityLevel.ERROR, 3],
+  [SeverityLevel.WARNING, 4],
+  [SeverityLevel.NOTICE, 5],
+  [SeverityLevel.INFORMATIONAL, 6],
+  [SeverityLevel.DEBUG, 7],
+  [SeverityLevel.TRACE, 8]
+]);
+
+/** @internal */
+export const MongoLoggableComponent = Object.freeze({
+  COMMAND: 'command',
+  TOPOLOGY: 'topology',
+  SERVER_SELECTION: 'serverSelection',
+  CONNECTION: 'connection',
+  CLIENT: 'client'
+} as const);
+
+/** @internal */
+export type MongoLoggableComponent =
+  (typeof MongoLoggableComponent)[keyof typeof MongoLoggableComponent];
+
+/** @internal */
+export interface MongoLoggerEnvOptions {
+  /** Severity level for command component */
+  MONGODB_LOG_COMMAND?: string;
+  /** Severity level for topology component */
+  MONGODB_LOG_TOPOLOGY?: string;
+  /** Severity level for server selection component */
+  MONGODB_LOG_SERVER_SELECTION?: string;
+  /** Severity level for CMAP */
+  MONGODB_LOG_CONNECTION?: string;
+  /** Severity level for client */
+  MONGODB_LOG_CLIENT?: string;
+  /** Default severity level to be if any of the above are unset */
+  MONGODB_LOG_ALL?: string;
+  /** Max length of embedded EJSON docs. Setting to 0 disables truncation. Defaults to 1000. */
+  MONGODB_LOG_MAX_DOCUMENT_LENGTH?: string;
+  /** Destination for log messages. Must be 'stderr', 'stdout'. Defaults to 'stderr'. */
+  MONGODB_LOG_PATH?: string;
+}
+
+/** @internal */
+export interface LogComponentSeveritiesClientOptions {
+  /** Optional severity level for command component */
+  command?: SeverityLevel;
+  /** Optional severity level for topology component */
+  topology?: SeverityLevel;
+  /** Optionsl severity level for server selection component */
+  serverSelection?: SeverityLevel;
+  /** Optional severity level for connection component */
+  connection?: SeverityLevel;
+  /** Optional severity level for client component */
+  client?: SeverityLevel;
+  /** Optional default severity level to be used if any of the above are unset */
+  default?: SeverityLevel;
+}
+
+/** @internal */
+export interface MongoLoggerMongoClientOptions {
+  /** Destination for log messages */
+  mongodbLogPath?: 'stdout' | 'stderr' | MongoDBLogWritable;
+  /** Severity levels for logger components */
+  mongodbLogComponentSeverities?: LogComponentSeveritiesClientOptions;
+  /** Max length of embedded EJSON docs. Setting to 0 disables truncation. Defaults to 1000. */
+  mongodbLogMaxDocumentLength?: number;
+}
+
+/** @internal */
+export interface MongoLoggerOptions {
+  componentSeverities: {
+    /** Severity level for command component */
+    command: SeverityLevel;
+    /** Severity level for topology component */
+    topology: SeverityLevel;
+    /** Severity level for server selection component */
+    serverSelection: SeverityLevel;
+    /** Severity level for connection component */
+    connection: SeverityLevel;
+    /** Severity level for client component */
+    client: SeverityLevel;
+    /** Default severity level to be used if any of the above are unset */
+    default: SeverityLevel;
+  };
+  /** Max length of embedded EJSON docs. Setting to 0 disables truncation. Defaults to 1000. */
+  maxDocumentLength: number;
+  /** Destination for log messages. */
+  logDestination: MongoDBLogWritable;
+  /** For internal check to see if error should stop logging. */
+  logDestinationIsStdErr: boolean;
+}
+
+/**
+ * Parses a string as one of SeverityLevel
+ * @internal
+ *
+ * @param s - the value to be parsed
+ * @returns one of SeverityLevel if value can be parsed as such, otherwise null
+ */
+export function parseSeverityFromString(s?: string): SeverityLevel | null {
+  const validSeverities: string[] = Object.values(SeverityLevel);
+  const lowerSeverity = s?.toLowerCase();
+
+  if (lowerSeverity != null && validSeverities.includes(lowerSeverity)) {
+    return lowerSeverity as SeverityLevel;
+  }
+
+  return null;
+}
+
+/** @internal */
+export function createStdioLogger(stream: {
+  write: NodeJS.WriteStream['write'];
+}): MongoDBLogWritable {
+  return {
+    write: promisify((log: Log, cb: (error?: Error) => void): unknown => {
+      const logLine = inspect(log, { compact: true, breakLength: Infinity });
+      stream.write(`${logLine}\n`, 'utf-8', cb);
+      return;
+    })
+  };
+}
+
+/**
+ * resolves the MONGODB_LOG_PATH and mongodbLogPath options from the environment and the
+ * mongo client options respectively. The mongodbLogPath can be either 'stdout', 'stderr', a NodeJS
+ * Writable or an object which has a `write` method with the signature:
+ * ```ts
+ * write(log: Log): void
+ * ```
+ *
+ * @returns the MongoDBLogWritable object to write logs to
+ */
+function resolveLogPath(
+  { MONGODB_LOG_PATH }: MongoLoggerEnvOptions,
+  { mongodbLogPath }: MongoLoggerMongoClientOptions
+): { mongodbLogPath: MongoDBLogWritable; mongodbLogPathIsStdErr: boolean } {
+  if (typeof mongodbLogPath === 'string' && /^stderr$/i.test(mongodbLogPath)) {
+    return { mongodbLogPath: createStdioLogger(process.stderr), mongodbLogPathIsStdErr: true };
+  }
+  if (typeof mongodbLogPath === 'string' && /^stdout$/i.test(mongodbLogPath)) {
+    return { mongodbLogPath: createStdioLogger(process.stdout), mongodbLogPathIsStdErr: false };
+  }
+
+  if (typeof mongodbLogPath === 'object' && typeof mongodbLogPath?.write === 'function') {
+    return { mongodbLogPath: mongodbLogPath, mongodbLogPathIsStdErr: false };
+  }
+
+  if (MONGODB_LOG_PATH && /^stderr$/i.test(MONGODB_LOG_PATH)) {
+    return { mongodbLogPath: createStdioLogger(process.stderr), mongodbLogPathIsStdErr: true };
+  }
+  if (MONGODB_LOG_PATH && /^stdout$/i.test(MONGODB_LOG_PATH)) {
+    return { mongodbLogPath: createStdioLogger(process.stdout), mongodbLogPathIsStdErr: false };
+  }
+
+  return { mongodbLogPath: createStdioLogger(process.stderr), mongodbLogPathIsStdErr: true };
+}
+
+function resolveSeverityConfiguration(
+  clientOption: string | undefined,
+  environmentOption: string | undefined,
+  defaultSeverity: SeverityLevel
+): SeverityLevel {
+  return (
+    parseSeverityFromString(clientOption) ??
+    parseSeverityFromString(environmentOption) ??
+    defaultSeverity
+  );
+}
+
+/** @internal */
+export interface Log extends Record<string, any> {
+  t: Date;
+  c: MongoLoggableComponent;
+  s: SeverityLevel;
+  message?: string;
+}
+
+/**
+ * @internal
+ * TODO: NODE-5671 - remove internal flag and add API comments
+ */
+export interface MongoDBLogWritable {
+  write(log: Log): PromiseLike<unknown> | unknown;
+}
+
+function compareSeverity(s0: SeverityLevel, s1: SeverityLevel): 1 | 0 | -1 {
+  const s0Num = SEVERITY_LEVEL_MAP.getNumericSeverityLevel(s0);
+  const s1Num = SEVERITY_LEVEL_MAP.getNumericSeverityLevel(s1);
+
+  return s0Num < s1Num ? -1 : s0Num > s1Num ? 1 : 0;
+}
+
+/**
+ * @internal
+ * Must be separate from Events API due to differences in spec requirements for logging a command success
+ */
+export type LoggableCommandSucceededEvent = {
+  address: string;
+  connectionId?: string | number;
+  requestId: number;
+  duration: number;
+  commandName: string;
+  reply: Document | undefined;
+  serviceId?: ObjectId;
+  name: typeof COMMAND_SUCCEEDED;
+  serverConnectionId: bigint | null;
+  databaseName: string;
+};
+
+/**
+ * @internal
+ * Must be separate from Events API due to differences in spec requirements for logging a command failure
+ */
+export type LoggableCommandFailedEvent = {
+  address: string;
+  connectionId?: string | number;
+  requestId: number;
+  duration: number;
+  commandName: string;
+  failure: Error;
+  serviceId?: ObjectId;
+  name: typeof COMMAND_FAILED;
+  serverConnectionId: bigint | null;
+  databaseName: string;
+};
+
+/**
+ * @internal
+ * Must be separate from Events API due to differences in spec requirements for logging server heartbeat beginning
+ */
+export type LoggableServerHeartbeatStartedEvent = {
+  topologyId: number;
+  awaited: boolean;
+  connectionId: string;
+  name: typeof SERVER_HEARTBEAT_STARTED;
+};
+
+/**
+ * @internal
+ * Must be separate from Events API due to differences in spec requirements for logging server heartbeat success
+ */
+export type LoggableServerHeartbeatSucceededEvent = {
+  topologyId: number;
+  awaited: boolean;
+  connectionId: string;
+  reply: Document;
+  serverConnectionId: number | '<monitor>';
+  duration: number;
+  name: typeof SERVER_HEARTBEAT_SUCCEEDED;
+};
+
+/**
+ * @internal
+ * Must be separate from Events API due to differences in spec requirements for logging server heartbeat failure
+ */
+export type LoggableServerHeartbeatFailedEvent = {
+  topologyId: number;
+  awaited: boolean;
+  connectionId: string;
+  failure: Error;
+  duration: number;
+  name: typeof SERVER_HEARTBEAT_FAILED;
+};
+
+type SDAMLoggableEvent =
+  | ServerClosedEvent
+  | LoggableServerHeartbeatFailedEvent
+  | LoggableServerHeartbeatStartedEvent
+  | LoggableServerHeartbeatSucceededEvent
+  | ServerOpeningEvent
+  | TopologyClosedEvent
+  | TopologyDescriptionChangedEvent
+  | TopologyOpeningEvent;
+
+/** @internal */
+export type LoggableEvent =
+  | ServerSelectionStartedEvent
+  | ServerSelectionFailedEvent
+  | ServerSelectionSucceededEvent
+  | WaitingForSuitableServerEvent
+  | CommandStartedEvent
+  | LoggableCommandSucceededEvent
+  | LoggableCommandFailedEvent
+  | ConnectionPoolCreatedEvent
+  | ConnectionPoolReadyEvent
+  | ConnectionPoolClosedEvent
+  | ConnectionPoolClearedEvent
+  | ConnectionCreatedEvent
+  | ConnectionReadyEvent
+  | ConnectionClosedEvent
+  | ConnectionCheckedInEvent
+  | ConnectionCheckedOutEvent
+  | ConnectionCheckOutStartedEvent
+  | ConnectionCheckOutFailedEvent
+  | ServerClosedEvent
+  | LoggableServerHeartbeatFailedEvent
+  | LoggableServerHeartbeatStartedEvent
+  | LoggableServerHeartbeatSucceededEvent
+  | ServerOpeningEvent
+  | TopologyClosedEvent
+  | TopologyDescriptionChangedEvent
+  | TopologyOpeningEvent;
+
+/** @internal */
+export interface LogConvertible extends Record<string, any> {
+  toLog(): Record<string, any>;
+}
+
+/** @internal */
+export function stringifyWithMaxLen(
+  value: any,
+  maxDocumentLength: number,
+  options: EJSONOptions = {}
+): string {
+  let strToTruncate = '';
+
+  if (typeof value === 'string') {
+    strToTruncate = value;
+  } else if (typeof value === 'function') {
+    strToTruncate = value.name;
+  } else {
+    try {
+      strToTruncate = EJSON.stringify(value, options);
+    } catch (e) {
+      strToTruncate = `Extended JSON serialization failed with: ${e.message}`;
+    }
+  }
+
+  // handle truncation that occurs in the middle of multi-byte codepoints
+  if (
+    maxDocumentLength !== 0 &&
+    strToTruncate.length > maxDocumentLength &&
+    strToTruncate.charCodeAt(maxDocumentLength - 1) !==
+      strToTruncate.codePointAt(maxDocumentLength - 1)
+  ) {
+    maxDocumentLength--;
+    if (maxDocumentLength === 0) {
+      return '';
+    }
+  }
+
+  return maxDocumentLength !== 0 && strToTruncate.length > maxDocumentLength
+    ? `${strToTruncate.slice(0, maxDocumentLength)}...`
+    : strToTruncate;
+}
+
+/** @internal */
+export type Loggable = LoggableEvent | LogConvertible;
+
+function isLogConvertible(obj: Loggable): obj is LogConvertible {
+  const objAsLogConvertible = obj as LogConvertible;
+  // eslint-disable-next-line no-restricted-syntax
+  return objAsLogConvertible.toLog !== undefined && typeof objAsLogConvertible.toLog === 'function';
+}
+
+function attachServerSelectionFields(
+  log: Record<string, any>,
+  serverSelectionEvent: ServerSelectionEvent,
+  maxDocumentLength: number = DEFAULT_MAX_DOCUMENT_LENGTH
+) {
+  const { selector, operation, topologyDescription, message } = serverSelectionEvent;
+  log.selector = stringifyWithMaxLen(selector, maxDocumentLength);
+  log.operation = operation;
+  log.topologyDescription = stringifyWithMaxLen(topologyDescription, maxDocumentLength);
+  log.message = message;
+
+  return log;
+}
+
+function attachCommandFields(
+  log: Record<string, any>,
+  commandEvent: CommandStartedEvent | LoggableCommandSucceededEvent | LoggableCommandFailedEvent
+) {
+  log.commandName = commandEvent.commandName;
+  log.requestId = commandEvent.requestId;
+  log.driverConnectionId = commandEvent.connectionId;
+  const { host, port } = HostAddress.fromString(commandEvent.address).toHostPort();
+  log.serverHost = host;
+  log.serverPort = port;
+  if (commandEvent?.serviceId) {
+    log.serviceId = commandEvent.serviceId.toHexString();
+  }
+  log.databaseName = commandEvent.databaseName;
+  log.serverConnectionId = commandEvent.serverConnectionId;
+
+  return log;
+}
+
+function attachConnectionFields(log: Record<string, any>, event: any) {
+  const { host, port } = HostAddress.fromString(event.address).toHostPort();
+  log.serverHost = host;
+  log.serverPort = port;
+
+  return log;
+}
+
+function attachSDAMFields(log: Record<string, any>, sdamEvent: SDAMLoggableEvent) {
+  log.topologyId = sdamEvent.topologyId;
+  return log;
+}
+
+function attachServerHeartbeatFields(
+  log: Record<string, any>,
+  serverHeartbeatEvent:
+    | LoggableServerHeartbeatFailedEvent
+    | LoggableServerHeartbeatStartedEvent
+    | LoggableServerHeartbeatSucceededEvent
+) {
+  const { awaited, connectionId } = serverHeartbeatEvent;
+  log.awaited = awaited;
+  log.driverConnectionId = serverHeartbeatEvent.connectionId;
+  const { host, port } = HostAddress.fromString(connectionId).toHostPort();
+  log.serverHost = host;
+  log.serverPort = port;
+  return log;
+}
+
+/** @internal */
+export function defaultLogTransform(
+  logObject: LoggableEvent | Record<string, any>,
+  maxDocumentLength: number = DEFAULT_MAX_DOCUMENT_LENGTH
+): Omit<Log, 's' | 't' | 'c'> {
+  let log: Omit<Log, 's' | 't' | 'c'> = Object.create(null);
+
+  switch (logObject.name) {
+    case SERVER_SELECTION_STARTED:
+      log = attachServerSelectionFields(log, logObject, maxDocumentLength);
+      return log;
+    case SERVER_SELECTION_FAILED:
+      log = attachServerSelectionFields(log, logObject, maxDocumentLength);
+      log.failure = logObject.failure?.message;
+      return log;
+    case SERVER_SELECTION_SUCCEEDED:
+      log = attachServerSelectionFields(log, logObject, maxDocumentLength);
+      log.serverHost = logObject.serverHost;
+      log.serverPort = logObject.serverPort;
+      return log;
+    case WAITING_FOR_SUITABLE_SERVER:
+      log = attachServerSelectionFields(log, logObject, maxDocumentLength);
+      log.remainingTimeMS = logObject.remainingTimeMS;
+      return log;
+    case COMMAND_STARTED:
+      log = attachCommandFields(log, logObject);
+      log.message = 'Command started';
+      log.command = stringifyWithMaxLen(logObject.command, maxDocumentLength, { relaxed: true });
+      log.databaseName = logObject.databaseName;
+      return log;
+    case COMMAND_SUCCEEDED:
+      log = attachCommandFields(log, logObject);
+      log.message = 'Command succeeded';
+      log.durationMS = logObject.duration;
+      log.reply = stringifyWithMaxLen(logObject.reply, maxDocumentLength, { relaxed: true });
+      return log;
+    case COMMAND_FAILED:
+      log = attachCommandFields(log, logObject);
+      log.message = 'Command failed';
+      log.durationMS = logObject.duration;
+      log.failure = logObject.failure?.message ?? '(redacted)';
+      return log;
+    case CONNECTION_POOL_CREATED:
+      log = attachConnectionFields(log, logObject);
+      log.message = 'Connection pool created';
+      if (logObject.options) {
+        const { maxIdleTimeMS, minPoolSize, maxPoolSize, maxConnecting, waitQueueTimeoutMS } =
+          logObject.options;
+        log = {
+          ...log,
+          maxIdleTimeMS,
+          minPoolSize,
+          maxPoolSize,
+          maxConnecting,
+          waitQueueTimeoutMS
+        };
+      }
+      return log;
+    case CONNECTION_POOL_READY:
+      log = attachConnectionFields(log, logObject);
+      log.message = 'Connection pool ready';
+      return log;
+    case CONNECTION_POOL_CLEARED:
+      log = attachConnectionFields(log, logObject);
+      log.message = 'Connection pool cleared';
+      if (logObject.serviceId?._bsontype === 'ObjectId') {
+        log.serviceId = logObject.serviceId?.toHexString();
+      }
+      return log;
+    case CONNECTION_POOL_CLOSED:
+      log = attachConnectionFields(log, logObject);
+      log.message = 'Connection pool closed';
+      return log;
+    case CONNECTION_CREATED:
+      log = attachConnectionFields(log, logObject);
+      log.message = 'Connection created';
+      log.driverConnectionId = logObject.connectionId;
+      return log;
+    case CONNECTION_READY:
+      log = attachConnectionFields(log, logObject);
+      log.message = 'Connection ready';
+      log.driverConnectionId = logObject.connectionId;
+      log.durationMS = logObject.durationMS;
+      return log;
+    case CONNECTION_CLOSED:
+      log = attachConnectionFields(log, logObject);
+      log.message = 'Connection closed';
+      log.driverConnectionId = logObject.connectionId;
+      switch (logObject.reason) {
+        case 'stale':
+          log.reason = 'Connection became stale because the pool was cleared';
+          break;
+        case 'idle':
+          log.reason =
+            'Connection has been available but unused for longer than the configured max idle time';
+          break;
+        case 'error':
+          log.reason = 'An error occurred while using the connection';
+          if (logObject.error) {
+            log.error = logObject.error;
+          }
+          break;
+        case 'poolClosed':
+          log.reason = 'Connection pool was closed';
+          break;
+        default:
+          log.reason = `Unknown close reason: ${logObject.reason}`;
+      }
+      return log;
+    case CONNECTION_CHECK_OUT_STARTED:
+      log = attachConnectionFields(log, logObject);
+      log.message = 'Connection checkout started';
+      return log;
+    case CONNECTION_CHECK_OUT_FAILED:
+      log = attachConnectionFields(log, logObject);
+      log.message = 'Connection checkout failed';
+      switch (logObject.reason) {
+        case 'poolClosed':
+          log.reason = 'Connection pool was closed';
+          break;
+        case 'timeout':
+          log.reason = 'Wait queue timeout elapsed without a connection becoming available';
+          break;
+        case 'connectionError':
+          log.reason = 'An error occurred while trying to establish a new connection';
+          if (logObject.error) {
+            log.error = logObject.error;
+          }
+          break;
+        default:
+          log.reason = `Unknown close reason: ${logObject.reason}`;
+      }
+      log.durationMS = logObject.durationMS;
+      return log;
+    case CONNECTION_CHECKED_OUT:
+      log = attachConnectionFields(log, logObject);
+      log.message = 'Connection checked out';
+      log.driverConnectionId = logObject.connectionId;
+      log.durationMS = logObject.durationMS;
+      return log;
+    case CONNECTION_CHECKED_IN:
+      log = attachConnectionFields(log, logObject);
+      log.message = 'Connection checked in';
+      log.driverConnectionId = logObject.connectionId;
+      return log;
+    case SERVER_OPENING:
+      log = attachSDAMFields(log, logObject);
+      log = attachConnectionFields(log, logObject);
+      log.message = 'Starting server monitoring';
+      return log;
+    case SERVER_CLOSED:
+      log = attachSDAMFields(log, logObject);
+      log = attachConnectionFields(log, logObject);
+      log.message = 'Stopped server monitoring';
+      return log;
+    case SERVER_HEARTBEAT_STARTED:
+      log = attachSDAMFields(log, logObject);
+      log = attachServerHeartbeatFields(log, logObject);
+      log.message = 'Server heartbeat started';
+      return log;
+    case SERVER_HEARTBEAT_SUCCEEDED:
+      log = attachSDAMFields(log, logObject);
+      log = attachServerHeartbeatFields(log, logObject);
+      log.message = 'Server heartbeat succeeded';
+      log.durationMS = logObject.duration;
+      log.serverConnectionId = logObject.serverConnectionId;
+      log.reply = stringifyWithMaxLen(logObject.reply, maxDocumentLength, { relaxed: true });
+      return log;
+    case SERVER_HEARTBEAT_FAILED:
+      log = attachSDAMFields(log, logObject);
+      log = attachServerHeartbeatFields(log, logObject);
+      log.message = 'Server heartbeat failed';
+      log.durationMS = logObject.duration;
+      log.failure = logObject.failure?.message;
+      return log;
+    case TOPOLOGY_OPENING:
+      log = attachSDAMFields(log, logObject);
+      log.message = 'Starting topology monitoring';
+      return log;
+    case TOPOLOGY_CLOSED:
+      log = attachSDAMFields(log, logObject);
+      log.message = 'Stopped topology monitoring';
+      return log;
+    case TOPOLOGY_DESCRIPTION_CHANGED:
+      log = attachSDAMFields(log, logObject);
+      log.message = 'Topology description changed';
+      log.previousDescription = log.reply = stringifyWithMaxLen(
+        logObject.previousDescription,
+        maxDocumentLength
+      );
+      log.newDescription = log.reply = stringifyWithMaxLen(
+        logObject.newDescription,
+        maxDocumentLength
+      );
+      return log;
+    default:
+      for (const [key, value] of Object.entries(logObject)) {
+        if (value != null) log[key] = value;
+      }
+  }
+  return log;
+}
+
+/** @internal */
+export class MongoLogger {
+  componentSeverities: Record<MongoLoggableComponent, SeverityLevel>;
+  maxDocumentLength: number;
+  logDestination: MongoDBLogWritable;
+  logDestinationIsStdErr: boolean;
+  pendingLog: PromiseLike<unknown> | unknown = null;
+  private severities: Record<MongoLoggableComponent, Record<SeverityLevel, boolean>>;
+
+  /**
+   * This method should be used when logging errors that do not have a public driver API for
+   * reporting errors.
+   */
+  error = this.log.bind(this, 'error');
+  /**
+   * This method should be used to log situations where undesirable application behaviour might
+   * occur. For example, failing to end sessions on `MongoClient.close`.
+   */
+  warn = this.log.bind(this, 'warn');
+  /**
+   * This method should be used to report high-level information about normal driver behaviour.
+   * For example, the creation of a `MongoClient`.
+   */
+  info = this.log.bind(this, 'info');
+  /**
+   * This method should be used to report information that would be helpful when debugging an
+   * application. For example, a command starting, succeeding or failing.
+   */
+  debug = this.log.bind(this, 'debug');
+  /**
+   * This method should be used to report fine-grained details related to logic flow. For example,
+   * entering and exiting a function body.
+   */
+  trace = this.log.bind(this, 'trace');
+
+  constructor(options: MongoLoggerOptions) {
+    this.componentSeverities = options.componentSeverities;
+    this.maxDocumentLength = options.maxDocumentLength;
+    this.logDestination = options.logDestination;
+    this.logDestinationIsStdErr = options.logDestinationIsStdErr;
+    this.severities = this.createLoggingSeverities();
+  }
+
+  createLoggingSeverities(): Record<MongoLoggableComponent, Record<SeverityLevel, boolean>> {
+    const severities = Object();
+    for (const component of Object.values(MongoLoggableComponent)) {
+      severities[component] = {};
+      for (const severityLevel of Object.values(SeverityLevel)) {
+        severities[component][severityLevel] =
+          compareSeverity(severityLevel, this.componentSeverities[component]) <= 0;
+      }
+    }
+    return severities;
+  }
+
+  turnOffSeverities() {
+    for (const component of Object.values(MongoLoggableComponent)) {
+      this.componentSeverities[component] = SeverityLevel.OFF;
+      for (const severityLevel of Object.values(SeverityLevel)) {
+        this.severities[component][severityLevel] = false;
+      }
+    }
+  }
+
+  private logWriteFailureHandler(error: Error) {
+    if (this.logDestinationIsStdErr) {
+      this.turnOffSeverities();
+      this.clearPendingLog();
+      return;
+    }
+    this.logDestination = createStdioLogger(process.stderr);
+    this.logDestinationIsStdErr = true;
+    this.clearPendingLog();
+    this.error(MongoLoggableComponent.CLIENT, {
+      toLog: function () {
+        return {
+          message: 'User input for mongodbLogPath is now invalid. Logging is halted.',
+          error: error.message
+        };
+      }
+    });
+    this.turnOffSeverities();
+    this.clearPendingLog();
+  }
+
+  private clearPendingLog() {
+    this.pendingLog = null;
+  }
+
+  willLog(component: MongoLoggableComponent, severity: SeverityLevel): boolean {
+    if (severity === SeverityLevel.OFF) return false;
+    return this.severities[component][severity];
+  }
+
+  private log(
+    severity: SeverityLevel,
+    component: MongoLoggableComponent,
+    message: Loggable | string
+  ): void {
+    if (!this.willLog(component, severity)) return;
+
+    let logMessage: Log = { t: new Date(), c: component, s: severity };
+    if (typeof message === 'string') {
+      logMessage.message = message;
+    } else if (typeof message === 'object') {
+      if (isLogConvertible(message)) {
+        logMessage = { ...logMessage, ...message.toLog() };
+      } else {
+        logMessage = { ...logMessage, ...defaultLogTransform(message, this.maxDocumentLength) };
+      }
+    }
+
+    if (isPromiseLike(this.pendingLog)) {
+      this.pendingLog = this.pendingLog
+
+        .then(() => this.logDestination.write(logMessage))
+
+        .then(this.clearPendingLog.bind(this), this.logWriteFailureHandler.bind(this));
+      return;
+    }
+
+    try {
+      const logResult = this.logDestination.write(logMessage);
+      if (isPromiseLike(logResult)) {
+        this.pendingLog = logResult.then(
+          this.clearPendingLog.bind(this),
+          this.logWriteFailureHandler.bind(this)
+        );
+      }
+    } catch (error) {
+      this.logWriteFailureHandler(error);
+    }
+  }
+
+  /**
+   * Merges options set through environment variables and the MongoClient, preferring environment
+   * variables when both are set, and substituting defaults for values not set. Options set in
+   * constructor take precedence over both environment variables and MongoClient options.
+   *
+   * @remarks
+   * When parsing component severity levels, invalid values are treated as unset and replaced with
+   * the default severity.
+   *
+   * @param envOptions - options set for the logger from the environment
+   * @param clientOptions - options set for the logger in the MongoClient options
+   * @returns a MongoLoggerOptions object to be used when instantiating a new MongoLogger
+   */
+  static resolveOptions(
+    envOptions: MongoLoggerEnvOptions,
+    clientOptions: MongoLoggerMongoClientOptions
+  ): MongoLoggerOptions {
+    // client options take precedence over env options
+    const resolvedLogPath = resolveLogPath(envOptions, clientOptions);
+    const combinedOptions = {
+      ...envOptions,
+      ...clientOptions,
+      mongodbLogPath: resolvedLogPath.mongodbLogPath,
+      mongodbLogPathIsStdErr: resolvedLogPath.mongodbLogPathIsStdErr
+    };
+    const defaultSeverity = resolveSeverityConfiguration(
+      combinedOptions.mongodbLogComponentSeverities?.default,
+      combinedOptions.MONGODB_LOG_ALL,
+      SeverityLevel.OFF
+    );
+
+    return {
+      componentSeverities: {
+        command: resolveSeverityConfiguration(
+          combinedOptions.mongodbLogComponentSeverities?.command,
+          combinedOptions.MONGODB_LOG_COMMAND,
+          defaultSeverity
+        ),
+        topology: resolveSeverityConfiguration(
+          combinedOptions.mongodbLogComponentSeverities?.topology,
+          combinedOptions.MONGODB_LOG_TOPOLOGY,
+          defaultSeverity
+        ),
+        serverSelection: resolveSeverityConfiguration(
+          combinedOptions.mongodbLogComponentSeverities?.serverSelection,
+          combinedOptions.MONGODB_LOG_SERVER_SELECTION,
+          defaultSeverity
+        ),
+        connection: resolveSeverityConfiguration(
+          combinedOptions.mongodbLogComponentSeverities?.connection,
+          combinedOptions.MONGODB_LOG_CONNECTION,
+          defaultSeverity
+        ),
+        client: resolveSeverityConfiguration(
+          combinedOptions.mongodbLogComponentSeverities?.client,
+          combinedOptions.MONGODB_LOG_CLIENT,
+          defaultSeverity
+        ),
+        default: defaultSeverity
+      },
+      maxDocumentLength:
+        combinedOptions.mongodbLogMaxDocumentLength ??
+        parseUnsignedInteger(combinedOptions.MONGODB_LOG_MAX_DOCUMENT_LENGTH) ??
+        1000,
+      logDestination: combinedOptions.mongodbLogPath,
+      logDestinationIsStdErr: combinedOptions.mongodbLogPathIsStdErr
+    };
+  }
+}
diff --git a/backend/node_modules/mongodb/src/mongo_types.ts b/backend/node_modules/mongodb/src/mongo_types.ts
new file mode 100644
index 0000000..be116b3
--- /dev/null
+++ b/backend/node_modules/mongodb/src/mongo_types.ts
@@ -0,0 +1,632 @@
+import { EventEmitter } from 'events';
+
+import type {
+  Binary,
+  BSONRegExp,
+  BSONType,
+  Decimal128,
+  Document,
+  Double,
+  Int32,
+  Long,
+  ObjectId,
+  ObjectIdLike,
+  Timestamp
+} from './bson';
+import { type CommandStartedEvent } from './cmap/command_monitoring_events';
+import {
+  type LoggableCommandFailedEvent,
+  type LoggableCommandSucceededEvent,
+  type LoggableServerHeartbeatFailedEvent,
+  type LoggableServerHeartbeatStartedEvent,
+  type LoggableServerHeartbeatSucceededEvent,
+  MongoLoggableComponent,
+  type MongoLogger
+} from './mongo_logger';
+import type { Sort } from './sort';
+
+/** @internal */
+export type TODO_NODE_3286 = any;
+
+/** Given an object shaped type, return the type of the _id field or default to ObjectId @public */
+export type InferIdType<TSchema> = TSchema extends { _id: infer IdType }
+  ? // user has defined a type for _id
+    Record<any, never> extends IdType
+    ? never // explicitly forbid empty objects as the type of _id
+    : IdType
+  : TSchema extends { _id?: infer IdType }
+    ? // optional _id defined - return ObjectId | IdType
+      unknown extends IdType
+      ? ObjectId // infer the _id type as ObjectId if the type of _id is unknown
+      : IdType
+    : ObjectId; // user has not defined _id on schema
+
+/** Add an _id field to an object shaped type @public */
+export type WithId<TSchema> = EnhancedOmit<TSchema, '_id'> & { _id: InferIdType<TSchema> };
+
+/**
+ * Add an optional _id field to an object shaped type
+ * @public
+ */
+export type OptionalId<TSchema> = EnhancedOmit<TSchema, '_id'> & { _id?: InferIdType<TSchema> };
+
+/**
+ * Adds an optional _id field to an object shaped type, unless the _id field is required on that type.
+ * In the case _id is required, this method continues to require_id.
+ *
+ * @public
+ *
+ * @privateRemarks
+ * `ObjectId extends TSchema['_id']` is a confusing ordering at first glance. Rather than ask
+ * `TSchema['_id'] extends ObjectId` which translated to "Is the _id property ObjectId?"
+ * we instead ask "Does ObjectId look like (have the same shape) as the _id?"
+ */
+export type OptionalUnlessRequiredId<TSchema> = TSchema extends { _id: any }
+  ? TSchema
+  : OptionalId<TSchema>;
+
+/** TypeScript Omit (Exclude to be specific) does not work for objects with an "any" indexed type, and breaks discriminated unions @public */
+export type EnhancedOmit<TRecordOrUnion, KeyUnion> = string extends keyof TRecordOrUnion
+  ? TRecordOrUnion // TRecordOrUnion has indexed type e.g. { _id: string; [k: string]: any; } or it is "any"
+  : TRecordOrUnion extends any
+    ? Pick<TRecordOrUnion, Exclude<keyof TRecordOrUnion, KeyUnion>> // discriminated unions
+    : never;
+
+/** Remove the _id field from an object shaped type @public */
+export type WithoutId<TSchema> = Omit<TSchema, '_id'>;
+
+/** A MongoDB filter can be some portion of the schema or a set of operators @public */
+export type Filter<TSchema> = {
+  [P in keyof WithId<TSchema>]?: Condition<WithId<TSchema>[P]>;
+} & RootFilterOperators<WithId<TSchema>>;
+
+/** @public */
+export type Condition<T> = AlternativeType<T> | FilterOperators<AlternativeType<T>>;
+
+/**
+ * It is possible to search using alternative types in mongodb e.g.
+ * string types can be searched using a regex in mongo
+ * array types can be searched using their element type
+ * @public
+ */
+export type AlternativeType<T> =
+  T extends ReadonlyArray<infer U> ? T | RegExpOrString<U> : RegExpOrString<T>;
+
+/** @public */
+export type RegExpOrString<T> = T extends string ? BSONRegExp | RegExp | T : T;
+
+/** @public */
+export interface RootFilterOperators<TSchema> extends Document {
+  $and?: Filter<TSchema>[];
+  $nor?: Filter<TSchema>[];
+  $or?: Filter<TSchema>[];
+  $text?: {
+    $search: string;
+    $language?: string;
+    $caseSensitive?: boolean;
+    $diacriticSensitive?: boolean;
+  };
+  $where?: string | ((this: TSchema) => boolean);
+  $comment?: string | Document;
+}
+
+/**
+ * @public
+ * A type that extends Document but forbids anything that "looks like" an object id.
+ */
+export type NonObjectIdLikeDocument = {
+  [key in keyof ObjectIdLike]?: never;
+} & Document;
+
+/** @public */
+export interface FilterOperators<TValue> extends NonObjectIdLikeDocument {
+  // Comparison
+  $eq?: TValue;
+  $gt?: TValue;
+  $gte?: TValue;
+  $in?: ReadonlyArray<TValue>;
+  $lt?: TValue;
+  $lte?: TValue;
+  $ne?: TValue;
+  $nin?: ReadonlyArray<TValue>;
+  // Logical
+  $not?: TValue extends string ? FilterOperators<TValue> | RegExp : FilterOperators<TValue>;
+  // Element
+  /**
+   * When `true`, `$exists` matches the documents that contain the field,
+   * including documents where the field value is null.
+   */
+  $exists?: boolean;
+  $type?: BSONType | BSONTypeAlias;
+  // Evaluation
+  $expr?: Record<string, any>;
+  $jsonSchema?: Record<string, any>;
+  $mod?: TValue extends number ? [number, number] : never;
+  $regex?: TValue extends string ? RegExp | BSONRegExp | string : never;
+  $options?: TValue extends string ? string : never;
+  // Geospatial
+  $geoIntersects?: { $geometry: Document };
+  $geoWithin?: Document;
+  $near?: Document;
+  $nearSphere?: Document;
+  $maxDistance?: number;
+  // Array
+  $all?: ReadonlyArray<any>;
+  $elemMatch?: Document;
+  $size?: TValue extends ReadonlyArray<any> ? number : never;
+  // Bitwise
+  $bitsAllClear?: BitwiseFilter;
+  $bitsAllSet?: BitwiseFilter;
+  $bitsAnyClear?: BitwiseFilter;
+  $bitsAnySet?: BitwiseFilter;
+  $rand?: Record<string, never>;
+}
+
+/** @public */
+export type BitwiseFilter =
+  | number /** numeric bit mask */
+  | Binary /** BinData bit mask */
+  | ReadonlyArray<number>; /** `[ <position1>, <position2>, ... ]` */
+
+/** @public */
+export type BSONTypeAlias = keyof typeof BSONType;
+
+/** @public */
+export type IsAny<Type, ResultIfAny, ResultIfNotAny> = true extends false & Type
+  ? ResultIfAny
+  : ResultIfNotAny;
+
+/** @public */
+export type Flatten<Type> = Type extends ReadonlyArray<infer Item> ? Item : Type;
+
+/** @public */
+export type ArrayElement<Type> = Type extends ReadonlyArray<infer Item> ? Item : never;
+
+/** @public */
+export type SchemaMember<T, V> = { [P in keyof T]?: V } | { [key: string]: V };
+
+/** @public */
+export type IntegerType = number | Int32 | Long | bigint;
+
+/** @public */
+export type NumericType = IntegerType | Decimal128 | Double;
+
+/** @public */
+export type FilterOperations<T> =
+  T extends Record<string, any>
+    ? { [key in keyof T]?: FilterOperators<T[key]> }
+    : FilterOperators<T>;
+
+/** @public */
+export type KeysOfAType<TSchema, Type> = {
+  [key in keyof TSchema]: NonNullable<TSchema[key]> extends Type ? key : never;
+}[keyof TSchema];
+
+/** @public */
+export type KeysOfOtherType<TSchema, Type> = {
+  [key in keyof TSchema]: NonNullable<TSchema[key]> extends Type ? never : key;
+}[keyof TSchema];
+
+/** @public */
+export type AcceptedFields<TSchema, FieldType, AssignableType> = {
+  readonly [key in KeysOfAType<TSchema, FieldType>]?: AssignableType;
+};
+
+/** It avoids using fields with not acceptable types @public */
+export type NotAcceptedFields<TSchema, FieldType> = {
+  readonly [key in KeysOfOtherType<TSchema, FieldType>]?: never;
+};
+
+/** @public */
+export type OnlyFieldsOfType<TSchema, FieldType = any, AssignableType = FieldType> = IsAny<
+  TSchema[keyof TSchema],
+  AssignableType extends FieldType ? Record<string, FieldType> : Record<string, AssignableType>,
+  AcceptedFields<TSchema, FieldType, AssignableType> &
+    NotAcceptedFields<TSchema, FieldType> &
+    Record<string, AssignableType>
+>;
+
+/** @public */
+export type MatchKeysAndValues<TSchema> = Readonly<Partial<TSchema>> & Record<string, any>;
+
+/** @public */
+export type AddToSetOperators<Type> = {
+  $each?: Array<Flatten<Type>>;
+};
+
+/** @public */
+export type ArrayOperator<Type> = {
+  $each?: Array<Flatten<Type>>;
+  $slice?: number;
+  $position?: number;
+  $sort?: Sort;
+};
+
+/** @public */
+export type SetFields<TSchema> = ({
+  readonly [key in KeysOfAType<TSchema, ReadonlyArray<any> | undefined>]?:
+    | OptionalId<Flatten<TSchema[key]>>
+    | AddToSetOperators<Array<OptionalId<Flatten<TSchema[key]>>>>;
+} & IsAny<
+  TSchema[keyof TSchema],
+  object,
+  NotAcceptedFields<TSchema, ReadonlyArray<any> | undefined>
+>) & {
+  readonly [key: string]: AddToSetOperators<any> | any;
+};
+
+/** @public */
+export type PushOperator<TSchema> = ({
+  readonly [key in KeysOfAType<TSchema, ReadonlyArray<any>>]?:
+    | Flatten<TSchema[key]>
+    | ArrayOperator<Array<Flatten<TSchema[key]>>>;
+} & NotAcceptedFields<TSchema, ReadonlyArray<any>>) & {
+  readonly [key: string]: ArrayOperator<any> | any;
+};
+
+/** @public */
+export type PullOperator<TSchema> = ({
+  readonly [key in KeysOfAType<TSchema, ReadonlyArray<any>>]?:
+    | Partial<Flatten<TSchema[key]>>
+    | FilterOperations<Flatten<TSchema[key]>>;
+} & NotAcceptedFields<TSchema, ReadonlyArray<any>>) & {
+  readonly [key: string]: FilterOperators<any> | any;
+};
+
+/** @public */
+export type PullAllOperator<TSchema> = ({
+  readonly [key in KeysOfAType<TSchema, ReadonlyArray<any>>]?: TSchema[key];
+} & NotAcceptedFields<TSchema, ReadonlyArray<any>>) & {
+  readonly [key: string]: ReadonlyArray<any>;
+};
+
+/** @public */
+export type UpdateFilter<TSchema> = {
+  $currentDate?: OnlyFieldsOfType<
+    TSchema,
+    Date | Timestamp,
+    true | { $type: 'date' | 'timestamp' }
+  >;
+  $inc?: OnlyFieldsOfType<TSchema, NumericType | undefined>;
+  $min?: MatchKeysAndValues<TSchema>;
+  $max?: MatchKeysAndValues<TSchema>;
+  $mul?: OnlyFieldsOfType<TSchema, NumericType | undefined>;
+  $rename?: Record<string, string>;
+  $set?: MatchKeysAndValues<TSchema>;
+  $setOnInsert?: MatchKeysAndValues<TSchema>;
+  $unset?: OnlyFieldsOfType<TSchema, any, '' | true | 1>;
+  $addToSet?: SetFields<TSchema>;
+  $pop?: OnlyFieldsOfType<TSchema, ReadonlyArray<any>, 1 | -1>;
+  $pull?: PullOperator<TSchema>;
+  $push?: PushOperator<TSchema>;
+  $pullAll?: PullAllOperator<TSchema>;
+  $bit?: OnlyFieldsOfType<
+    TSchema,
+    NumericType | undefined,
+    { and: IntegerType } | { or: IntegerType } | { xor: IntegerType }
+  >;
+} & Document;
+
+/** @public */
+export type Nullable<AnyType> = AnyType | null | undefined;
+
+/** @public */
+export type OneOrMore<T> = T | ReadonlyArray<T>;
+
+/** @public */
+export type GenericListener = (...args: any[]) => void;
+
+/**
+ * Event description type
+ * @public
+ */
+export type EventsDescription = Record<string, GenericListener>;
+
+/** @public */
+export type CommonEvents = 'newListener' | 'removeListener';
+
+/**
+ * Typescript type safe event emitter
+ * @public
+ */
+export declare interface TypedEventEmitter<Events extends EventsDescription> extends EventEmitter {
+  addListener<EventKey extends keyof Events>(event: EventKey, listener: Events[EventKey]): this;
+  addListener(
+    event: CommonEvents,
+    listener: (eventName: string | symbol, listener: GenericListener) => void
+  ): this;
+  addListener(event: string | symbol, listener: GenericListener): this;
+
+  on<EventKey extends keyof Events>(event: EventKey, listener: Events[EventKey]): this;
+  on(
+    event: CommonEvents,
+    listener: (eventName: string | symbol, listener: GenericListener) => void
+  ): this;
+  on(event: string | symbol, listener: GenericListener): this;
+
+  once<EventKey extends keyof Events>(event: EventKey, listener: Events[EventKey]): this;
+  once(
+    event: CommonEvents,
+    listener: (eventName: string | symbol, listener: GenericListener) => void
+  ): this;
+  once(event: string | symbol, listener: GenericListener): this;
+
+  removeListener<EventKey extends keyof Events>(event: EventKey, listener: Events[EventKey]): this;
+  removeListener(
+    event: CommonEvents,
+    listener: (eventName: string | symbol, listener: GenericListener) => void
+  ): this;
+  removeListener(event: string | symbol, listener: GenericListener): this;
+
+  off<EventKey extends keyof Events>(event: EventKey, listener: Events[EventKey]): this;
+  off(
+    event: CommonEvents,
+    listener: (eventName: string | symbol, listener: GenericListener) => void
+  ): this;
+  off(event: string | symbol, listener: GenericListener): this;
+
+  removeAllListeners<EventKey extends keyof Events>(
+    event?: EventKey | CommonEvents | symbol | string
+  ): this;
+
+  listeners<EventKey extends keyof Events>(
+    event: EventKey | CommonEvents | symbol | string
+  ): Events[EventKey][];
+
+  rawListeners<EventKey extends keyof Events>(
+    event: EventKey | CommonEvents | symbol | string
+  ): Events[EventKey][];
+
+  emit<EventKey extends keyof Events>(
+    event: EventKey | symbol,
+    ...args: Parameters<Events[EventKey]>
+  ): boolean;
+
+  listenerCount<EventKey extends keyof Events>(
+    type: EventKey | CommonEvents | symbol | string
+  ): number;
+
+  prependListener<EventKey extends keyof Events>(event: EventKey, listener: Events[EventKey]): this;
+  prependListener(
+    event: CommonEvents,
+    listener: (eventName: string | symbol, listener: GenericListener) => void
+  ): this;
+  prependListener(event: string | symbol, listener: GenericListener): this;
+
+  prependOnceListener<EventKey extends keyof Events>(
+    event: EventKey,
+    listener: Events[EventKey]
+  ): this;
+  prependOnceListener(
+    event: CommonEvents,
+    listener: (eventName: string | symbol, listener: GenericListener) => void
+  ): this;
+  prependOnceListener(event: string | symbol, listener: GenericListener): this;
+
+  eventNames(): string[];
+  getMaxListeners(): number;
+  setMaxListeners(n: number): this;
+}
+
+/**
+ * Typescript type safe event emitter
+ * @public
+ */
+
+// eslint-disable-next-line @typescript-eslint/no-unsafe-declaration-merging
+export class TypedEventEmitter<Events extends EventsDescription> extends EventEmitter {
+  /** @internal */
+  protected mongoLogger?: MongoLogger;
+  /** @internal */
+  protected component?: MongoLoggableComponent;
+  /** @internal */
+  emitAndLog<EventKey extends keyof Events>(
+    event: EventKey | symbol,
+    ...args: Parameters<Events[EventKey]>
+  ): void {
+    this.emit(event, ...args);
+    if (this.component) this.mongoLogger?.debug(this.component, args[0]);
+  }
+  /** @internal */
+  emitAndLogHeartbeat<EventKey extends keyof Events>(
+    event: EventKey | symbol,
+    topologyId: number,
+    serverConnectionId?: number | '<monitor>',
+    ...args: Parameters<Events[EventKey]>
+  ): void {
+    this.emit(event, ...args);
+    if (this.component) {
+      const loggableHeartbeatEvent:
+        | LoggableServerHeartbeatFailedEvent
+        | LoggableServerHeartbeatSucceededEvent
+        | LoggableServerHeartbeatStartedEvent = {
+        topologyId: topologyId,
+        serverConnectionId: serverConnectionId ?? null,
+        ...args[0]
+      };
+      this.mongoLogger?.debug(this.component, loggableHeartbeatEvent);
+    }
+  }
+  /** @internal */
+  emitAndLogCommand<EventKey extends keyof Events>(
+    monitorCommands: boolean,
+    event: EventKey | symbol,
+    databaseName: string,
+    connectionEstablished: boolean,
+    ...args: Parameters<Events[EventKey]>
+  ): void {
+    if (monitorCommands) {
+      this.emit(event, ...args);
+    }
+    if (connectionEstablished) {
+      const loggableCommandEvent:
+        | CommandStartedEvent
+        | LoggableCommandFailedEvent
+        | LoggableCommandSucceededEvent = {
+        databaseName: databaseName,
+        ...args[0]
+      };
+      this.mongoLogger?.debug(MongoLoggableComponent.COMMAND, loggableCommandEvent);
+    }
+  }
+}
+
+/** @public */
+export class CancellationToken extends TypedEventEmitter<{ cancel(): void }> {}
+
+/**
+ * Helper types for dot-notation filter attributes
+ */
+
+/** @public */
+export type Join<T extends unknown[], D extends string> = T extends []
+  ? ''
+  : T extends [string | number]
+    ? `${T[0]}`
+    : T extends [string | number, ...infer R]
+      ? `${T[0]}${D}${Join<R, D>}`
+      : string;
+
+/** @public */
+export type PropertyType<Type, Property extends string> = string extends Property
+  ? unknown
+  : Property extends keyof Type
+    ? Type[Property]
+    : Property extends `${number}`
+      ? Type extends ReadonlyArray<infer ArrayType>
+        ? ArrayType
+        : unknown
+      : Property extends `${infer Key}.${infer Rest}`
+        ? Key extends `${number}`
+          ? Type extends ReadonlyArray<infer ArrayType>
+            ? PropertyType<ArrayType, Rest>
+            : unknown
+          : Key extends keyof Type
+            ? Type[Key] extends Map<string, infer MapType>
+              ? MapType
+              : PropertyType<Type[Key], Rest>
+            : unknown
+        : unknown;
+
+/**
+ * @public
+ * returns tuple of strings (keys to be joined on '.') that represent every path into a schema
+ * https://www.mongodb.com/docs/manual/tutorial/query-embedded-documents/
+ *
+ * @remarks
+ * Through testing we determined that a depth of 8 is safe for the typescript compiler
+ * and provides reasonable compilation times. This number is otherwise not special and
+ * should be changed if issues are found with this level of checking. Beyond this
+ * depth any helpers that make use of NestedPaths should devolve to not asserting any
+ * type safety on the input.
+ */
+export type NestedPaths<Type, Depth extends number[]> = Depth['length'] extends 8
+  ? []
+  : Type extends
+        | string
+        | number
+        | bigint
+        | boolean
+        | Date
+        | RegExp
+        | Buffer
+        | Uint8Array
+        | ((...args: any[]) => any)
+        | { _bsontype: string }
+    ? []
+    : Type extends ReadonlyArray<infer ArrayType>
+      ? [] | [number, ...NestedPaths<ArrayType, [...Depth, 1]>]
+      : Type extends Map<string, any>
+        ? [string]
+        : Type extends object
+          ? {
+              [Key in Extract<keyof Type, string>]: Type[Key] extends Type // type of value extends the parent
+                ? [Key]
+                : // for a recursive union type, the child will never extend the parent type.
+                  // but the parent will still extend the child
+                  Type extends Type[Key]
+                  ? [Key]
+                  : Type[Key] extends ReadonlyArray<infer ArrayType> // handling recursive types with arrays
+                    ? Type extends ArrayType // is the type of the parent the same as the type of the array?
+                      ? [Key] // yes, it's a recursive array type
+                      : // for unions, the child type extends the parent
+                        ArrayType extends Type
+                        ? [Key] // we have a recursive array union
+                        : // child is an array, but it's not a recursive array
+                          [Key, ...NestedPaths<Type[Key], [...Depth, 1]>]
+                    : // child is not structured the same as the parent
+                      [Key, ...NestedPaths<Type[Key], [...Depth, 1]>] | [Key];
+            }[Extract<keyof Type, string>]
+          : [];
+
+/**
+ * @public
+ * returns keys (strings) for every path into a schema with a value of type
+ * https://www.mongodb.com/docs/manual/tutorial/query-embedded-documents/
+ */
+export type NestedPathsOfType<TSchema, Type> = KeysOfAType<
+  {
+    [Property in Join<NestedPaths<TSchema, []>, '.'>]: PropertyType<TSchema, Property>;
+  },
+  Type
+>;
+
+/**
+ * @public
+ * @experimental
+ */
+export type StrictFilter<TSchema> =
+  | Partial<TSchema>
+  | ({
+      [Property in Join<NestedPaths<WithId<TSchema>, []>, '.'>]?: Condition<
+        PropertyType<WithId<TSchema>, Property>
+      >;
+    } & RootFilterOperators<WithId<TSchema>>);
+
+/**
+ * @public
+ * @experimental
+ */
+export type StrictUpdateFilter<TSchema> = {
+  $currentDate?: OnlyFieldsOfType<
+    TSchema,
+    Date | Timestamp,
+    true | { $type: 'date' | 'timestamp' }
+  >;
+  $inc?: OnlyFieldsOfType<TSchema, NumericType | undefined>;
+  $min?: StrictMatchKeysAndValues<TSchema>;
+  $max?: StrictMatchKeysAndValues<TSchema>;
+  $mul?: OnlyFieldsOfType<TSchema, NumericType | undefined>;
+  $rename?: Record<string, string>;
+  $set?: StrictMatchKeysAndValues<TSchema>;
+  $setOnInsert?: StrictMatchKeysAndValues<TSchema>;
+  $unset?: OnlyFieldsOfType<TSchema, any, '' | true | 1>;
+  $addToSet?: SetFields<TSchema>;
+  $pop?: OnlyFieldsOfType<TSchema, ReadonlyArray<any>, 1 | -1>;
+  $pull?: PullOperator<TSchema>;
+  $push?: PushOperator<TSchema>;
+  $pullAll?: PullAllOperator<TSchema>;
+  $bit?: OnlyFieldsOfType<
+    TSchema,
+    NumericType | undefined,
+    { and: IntegerType } | { or: IntegerType } | { xor: IntegerType }
+  >;
+} & Document;
+
+/**
+ * @public
+ * @experimental
+ */
+export type StrictMatchKeysAndValues<TSchema> = Readonly<
+  {
+    [Property in Join<NestedPaths<TSchema, []>, '.'>]?: PropertyType<TSchema, Property>;
+  } & {
+    [Property in `${NestedPathsOfType<TSchema, any[]>}.$${`[${string}]` | ''}`]?: ArrayElement<
+      PropertyType<TSchema, Property extends `${infer Key}.$${string}` ? Key : never>
+    >;
+  } & {
+    [Property in `${NestedPathsOfType<TSchema, Record<string, any>[]>}.$${
+      | `[${string}]`
+      | ''}.${string}`]?: any; // Could be further narrowed
+  } & Document
+>;
diff --git a/backend/node_modules/mongodb/src/operations/aggregate.ts b/backend/node_modules/mongodb/src/operations/aggregate.ts
new file mode 100644
index 0000000..ab367a1
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/aggregate.ts
@@ -0,0 +1,171 @@
+import type { Document } from '../bson';
+import { CursorResponse, ExplainedCursorResponse } from '../cmap/wire_protocol/responses';
+import { type CursorTimeoutMode } from '../cursor/abstract_cursor';
+import { MongoInvalidArgumentError } from '../error';
+import { type ExplainOptions } from '../explain';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import { maxWireVersion, type MongoDBNamespace } from '../utils';
+import { WriteConcern } from '../write_concern';
+import { type CollationOptions, CommandOperation, type CommandOperationOptions } from './command';
+import { Aspect, defineAspects, type Hint } from './operation';
+
+/** @internal */
+// eslint-disable-next-line @typescript-eslint/no-unnecessary-type-assertion
+export const DB_AGGREGATE_COLLECTION = 1 as const;
+const MIN_WIRE_VERSION_$OUT_READ_CONCERN_SUPPORT = 8;
+
+/** @public */
+export interface AggregateOptions extends Omit<CommandOperationOptions, 'explain'> {
+  /** allowDiskUse lets the server know if it can use disk to store temporary results for the aggregation (requires mongodb 2.6 \>). */
+  allowDiskUse?: boolean;
+  /** The number of documents to return per batch. See [aggregation documentation](https://www.mongodb.com/docs/manual/reference/command/aggregate). */
+  batchSize?: number;
+  /** Allow driver to bypass schema validation. */
+  bypassDocumentValidation?: boolean;
+  /** Return the query as cursor, on 2.6 \> it returns as a real cursor on pre 2.6 it returns as an emulated cursor. */
+  cursor?: Document;
+  /**
+   * Specifies a cumulative time limit in milliseconds for processing operations on the cursor. MongoDB interrupts the operation at the earliest following interrupt point.
+   */
+  maxTimeMS?: number;
+  /** The maximum amount of time for the server to wait on new documents to satisfy a tailable cursor query. */
+  maxAwaitTimeMS?: number;
+  /** Specify collation. */
+  collation?: CollationOptions;
+  /** Add an index selection hint to an aggregation command */
+  hint?: Hint;
+  /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+  let?: Document;
+
+  out?: string;
+
+  /**
+   * Specifies the verbosity mode for the explain output.
+   * @deprecated This API is deprecated in favor of `collection.aggregate().explain()`
+   * or `db.aggregate().explain()`.
+   */
+  explain?: ExplainOptions['explain'];
+  /** @internal */
+  timeoutMode?: CursorTimeoutMode;
+}
+
+/** @internal */
+export class AggregateOperation extends CommandOperation<CursorResponse> {
+  override options: AggregateOptions;
+  target: string | typeof DB_AGGREGATE_COLLECTION;
+  pipeline: Document[];
+  hasWriteStage: boolean;
+
+  constructor(ns: MongoDBNamespace, pipeline: Document[], options?: AggregateOptions) {
+    super(undefined, { ...options, dbName: ns.db });
+
+    this.options = { ...options };
+
+    // Covers when ns.collection is null, undefined or the empty string, use DB_AGGREGATE_COLLECTION
+    this.target = ns.collection || DB_AGGREGATE_COLLECTION;
+
+    this.pipeline = pipeline;
+
+    // determine if we have a write stage, override read preference if so
+    this.hasWriteStage = false;
+    if (typeof options?.out === 'string') {
+      this.pipeline = this.pipeline.concat({ $out: options.out });
+      this.hasWriteStage = true;
+    } else if (pipeline.length > 0) {
+      const finalStage = pipeline[pipeline.length - 1];
+      if (finalStage.$out || finalStage.$merge) {
+        this.hasWriteStage = true;
+      }
+    }
+
+    if (this.hasWriteStage) {
+      this.trySecondaryWrite = true;
+    } else {
+      delete this.options.writeConcern;
+    }
+
+    if (this.explain && this.writeConcern) {
+      throw new MongoInvalidArgumentError(
+        'Option "explain" cannot be used on an aggregate call with writeConcern'
+      );
+    }
+
+    if (options?.cursor != null && typeof options.cursor !== 'object') {
+      throw new MongoInvalidArgumentError('Cursor options must be an object');
+    }
+  }
+
+  override get commandName() {
+    return 'aggregate' as const;
+  }
+
+  override get canRetryRead(): boolean {
+    return !this.hasWriteStage;
+  }
+
+  addToPipeline(stage: Document): void {
+    this.pipeline.push(stage);
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<CursorResponse> {
+    const options: AggregateOptions = this.options;
+    const serverWireVersion = maxWireVersion(server);
+    const command: Document = { aggregate: this.target, pipeline: this.pipeline };
+
+    if (this.hasWriteStage && serverWireVersion < MIN_WIRE_VERSION_$OUT_READ_CONCERN_SUPPORT) {
+      this.readConcern = undefined;
+    }
+
+    if (this.hasWriteStage && this.writeConcern) {
+      WriteConcern.apply(command, this.writeConcern);
+    }
+
+    if (options.bypassDocumentValidation === true) {
+      command.bypassDocumentValidation = options.bypassDocumentValidation;
+    }
+
+    if (typeof options.allowDiskUse === 'boolean') {
+      command.allowDiskUse = options.allowDiskUse;
+    }
+
+    if (options.hint) {
+      command.hint = options.hint;
+    }
+
+    if (options.let) {
+      command.let = options.let;
+    }
+
+    // we check for undefined specifically here to allow falsy values
+    // eslint-disable-next-line no-restricted-syntax
+    if (options.comment !== undefined) {
+      command.comment = options.comment;
+    }
+
+    command.cursor = options.cursor || {};
+    if (options.batchSize && !this.hasWriteStage) {
+      command.cursor.batchSize = options.batchSize;
+    }
+
+    return await super.executeCommand(
+      server,
+      session,
+      command,
+      timeoutContext,
+      this.explain ? ExplainedCursorResponse : CursorResponse
+    );
+  }
+}
+
+defineAspects(AggregateOperation, [
+  Aspect.READ_OPERATION,
+  Aspect.RETRYABLE,
+  Aspect.EXPLAINABLE,
+  Aspect.CURSOR_CREATING
+]);
diff --git a/backend/node_modules/mongodb/src/operations/bulk_write.ts b/backend/node_modules/mongodb/src/operations/bulk_write.ts
new file mode 100644
index 0000000..55b61ef
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/bulk_write.ts
@@ -0,0 +1,64 @@
+import type {
+  AnyBulkWriteOperation,
+  BulkOperationBase,
+  BulkWriteOptions,
+  BulkWriteResult
+} from '../bulk/common';
+import type { Collection } from '../collection';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import { AbstractOperation, Aspect, defineAspects } from './operation';
+
+/** @internal */
+export class BulkWriteOperation extends AbstractOperation<BulkWriteResult> {
+  override options: BulkWriteOptions;
+  collection: Collection;
+  operations: ReadonlyArray<AnyBulkWriteOperation>;
+
+  constructor(
+    collection: Collection,
+    operations: ReadonlyArray<AnyBulkWriteOperation>,
+    options: BulkWriteOptions
+  ) {
+    super(options);
+    this.options = options;
+    this.collection = collection;
+    this.operations = operations;
+  }
+
+  override get commandName() {
+    return 'bulkWrite' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<BulkWriteResult> {
+    const coll = this.collection;
+    const operations = this.operations;
+    const options = {
+      ...this.options,
+      ...this.bsonOptions,
+      readPreference: this.readPreference,
+      timeoutContext
+    };
+
+    // Create the bulk operation
+    const bulk: BulkOperationBase =
+      options.ordered === false
+        ? coll.initializeUnorderedBulkOp(options)
+        : coll.initializeOrderedBulkOp(options);
+
+    // for each op go through and add to the bulk
+    for (let i = 0; i < operations.length; i++) {
+      bulk.raw(operations[i]);
+    }
+
+    // Execute the bulk
+    return await bulk.execute({ ...options, session });
+  }
+}
+
+defineAspects(BulkWriteOperation, [Aspect.WRITE_OPERATION]);
diff --git a/backend/node_modules/mongodb/src/operations/client_bulk_write/client_bulk_write.ts b/backend/node_modules/mongodb/src/operations/client_bulk_write/client_bulk_write.ts
new file mode 100644
index 0000000..26d1e7b
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/client_bulk_write/client_bulk_write.ts
@@ -0,0 +1,115 @@
+import { MongoClientBulkWriteExecutionError, ServerType } from '../../beta';
+import { ClientBulkWriteCursorResponse } from '../../cmap/wire_protocol/responses';
+import type { Server } from '../../sdam/server';
+import type { ClientSession } from '../../sessions';
+import { type TimeoutContext } from '../../timeout';
+import { MongoDBNamespace } from '../../utils';
+import { CommandOperation } from '../command';
+import { Aspect, defineAspects } from '../operation';
+import { type ClientBulkWriteCommandBuilder } from './command_builder';
+import { type ClientBulkWriteOptions } from './common';
+
+/**
+ * Executes a single client bulk write operation within a potential batch.
+ * @internal
+ */
+export class ClientBulkWriteOperation extends CommandOperation<ClientBulkWriteCursorResponse> {
+  commandBuilder: ClientBulkWriteCommandBuilder;
+  override options: ClientBulkWriteOptions;
+
+  override get commandName() {
+    return 'bulkWrite' as const;
+  }
+
+  constructor(commandBuilder: ClientBulkWriteCommandBuilder, options: ClientBulkWriteOptions) {
+    super(undefined, options);
+    this.commandBuilder = commandBuilder;
+    this.options = options;
+    this.ns = new MongoDBNamespace('admin', '$cmd');
+  }
+
+  override resetBatch(): boolean {
+    return this.commandBuilder.resetBatch();
+  }
+
+  override get canRetryWrite(): boolean {
+    return this.commandBuilder.isBatchRetryable;
+  }
+
+  /**
+   * Execute the command. Superclass will handle write concern, etc.
+   * @param server - The server.
+   * @param session - The session.
+   * @returns The response.
+   */
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<ClientBulkWriteCursorResponse> {
+    let command;
+
+    if (server.description.type === ServerType.LoadBalancer) {
+      if (session) {
+        let connection;
+        if (!session.pinnedConnection) {
+          // Checkout a connection to build the command.
+          connection = await server.pool.checkOut({ timeoutContext });
+          // Pin the connection to the session so it get used to execute the command and we do not
+          // perform a double check-in/check-out.
+          session.pin(connection);
+        } else {
+          connection = session.pinnedConnection;
+        }
+        command = this.commandBuilder.buildBatch(
+          connection.hello?.maxMessageSizeBytes,
+          connection.hello?.maxWriteBatchSize,
+          connection.hello?.maxBsonObjectSize
+        );
+      } else {
+        throw new MongoClientBulkWriteExecutionError(
+          'Session provided to the client bulk write operation must be present.'
+        );
+      }
+    } else {
+      // At this point we have a server and the auto connect code has already
+      // run in executeOperation, so the server description will be populated.
+      // We can use that to build the command.
+      if (
+        !server.description.maxWriteBatchSize ||
+        !server.description.maxMessageSizeBytes ||
+        !server.description.maxBsonObjectSize
+      ) {
+        throw new MongoClientBulkWriteExecutionError(
+          'In order to execute a client bulk write, both maxWriteBatchSize, maxMessageSizeBytes and maxBsonObjectSize must be provided by the servers hello response.'
+        );
+      }
+      command = this.commandBuilder.buildBatch(
+        server.description.maxMessageSizeBytes,
+        server.description.maxWriteBatchSize,
+        server.description.maxBsonObjectSize
+      );
+    }
+
+    // Check after the batch is built if we cannot retry it and override the option.
+    if (!this.canRetryWrite) {
+      this.options.willRetryWrite = false;
+    }
+    return await super.executeCommand(
+      server,
+      session,
+      command,
+      timeoutContext,
+      ClientBulkWriteCursorResponse
+    );
+  }
+}
+
+// Skipping the collation as it goes on the individual ops.
+defineAspects(ClientBulkWriteOperation, [
+  Aspect.WRITE_OPERATION,
+  Aspect.SKIP_COLLATION,
+  Aspect.CURSOR_CREATING,
+  Aspect.RETRYABLE,
+  Aspect.COMMAND_BATCHING
+]);
diff --git a/backend/node_modules/mongodb/src/operations/client_bulk_write/command_builder.ts b/backend/node_modules/mongodb/src/operations/client_bulk_write/command_builder.ts
new file mode 100644
index 0000000..e4ad79d
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/client_bulk_write/command_builder.ts
@@ -0,0 +1,469 @@
+import { BSON, type Document } from '../../bson';
+import { DocumentSequence } from '../../cmap/commands';
+import { MongoAPIError, MongoInvalidArgumentError } from '../../error';
+import { type PkFactory } from '../../mongo_client';
+import type { Filter, OptionalId, UpdateFilter, WithoutId } from '../../mongo_types';
+import { DEFAULT_PK_FACTORY, hasAtomicOperators } from '../../utils';
+import { type CollationOptions } from '../command';
+import { type Hint } from '../operation';
+import type {
+  AnyClientBulkWriteModel,
+  ClientBulkWriteOptions,
+  ClientDeleteManyModel,
+  ClientDeleteOneModel,
+  ClientInsertOneModel,
+  ClientReplaceOneModel,
+  ClientUpdateManyModel,
+  ClientUpdateOneModel
+} from './common';
+
+/** @internal */
+export interface ClientBulkWriteCommand {
+  bulkWrite: 1;
+  errorsOnly: boolean;
+  ordered: boolean;
+  ops: DocumentSequence;
+  nsInfo: DocumentSequence;
+  bypassDocumentValidation?: boolean;
+  let?: Document;
+  comment?: any;
+}
+
+/**
+ * The bytes overhead for the extra fields added post command generation.
+ */
+const MESSAGE_OVERHEAD_BYTES = 1000;
+
+/** @internal */
+export class ClientBulkWriteCommandBuilder {
+  models: ReadonlyArray<AnyClientBulkWriteModel<Document>>;
+  options: ClientBulkWriteOptions;
+  pkFactory: PkFactory;
+  /** The current index in the models array that is being processed. */
+  currentModelIndex: number;
+  /** The model index that the builder was on when it finished the previous batch. Used for resets when retrying. */
+  previousModelIndex: number;
+  /** The last array of operations that were created. Used by the results merger for indexing results. */
+  lastOperations: Document[];
+  /** Returns true if the current batch being created has no multi-updates. */
+  isBatchRetryable: boolean;
+
+  /**
+   * Create the command builder.
+   * @param models - The client write models.
+   */
+  constructor(
+    models: ReadonlyArray<AnyClientBulkWriteModel<Document>>,
+    options: ClientBulkWriteOptions,
+    pkFactory?: PkFactory
+  ) {
+    this.models = models;
+    this.options = options;
+    this.pkFactory = pkFactory ?? DEFAULT_PK_FACTORY;
+    this.currentModelIndex = 0;
+    this.previousModelIndex = 0;
+    this.lastOperations = [];
+    this.isBatchRetryable = true;
+  }
+
+  /**
+   * Gets the errorsOnly value for the command, which is the inverse of the
+   * user provided verboseResults option. Defaults to true.
+   */
+  get errorsOnly(): boolean {
+    if ('verboseResults' in this.options) {
+      return !this.options.verboseResults;
+    }
+    return true;
+  }
+
+  /**
+   * Determines if there is another batch to process.
+   * @returns True if not all batches have been built.
+   */
+  hasNextBatch(): boolean {
+    return this.currentModelIndex < this.models.length;
+  }
+
+  /**
+   * When we need to retry a command we need to set the current
+   * model index back to its previous value.
+   */
+  resetBatch(): boolean {
+    this.currentModelIndex = this.previousModelIndex;
+    return true;
+  }
+
+  /**
+   * Build a single batch of a client bulk write command.
+   * @param maxMessageSizeBytes - The max message size in bytes.
+   * @param maxWriteBatchSize - The max write batch size.
+   * @returns The client bulk write command.
+   */
+  buildBatch(
+    maxMessageSizeBytes: number,
+    maxWriteBatchSize: number,
+    maxBsonObjectSize: number
+  ): ClientBulkWriteCommand {
+    // We start by assuming the batch has no multi-updates, so it is retryable
+    // until we find them.
+    this.isBatchRetryable = true;
+    let commandLength = 0;
+    let currentNamespaceIndex = 0;
+    const command: ClientBulkWriteCommand = this.baseCommand();
+    const namespaces = new Map<string, number>();
+    // In the case of retries we need to mark where we started this batch.
+    this.previousModelIndex = this.currentModelIndex;
+
+    while (this.currentModelIndex < this.models.length) {
+      const model = this.models[this.currentModelIndex];
+      const ns = model.namespace;
+      const nsIndex = namespaces.get(ns);
+
+      // Multi updates are not retryable.
+      if (model.name === 'deleteMany' || model.name === 'updateMany') {
+        this.isBatchRetryable = false;
+      }
+
+      if (nsIndex != null) {
+        // Build the operation and serialize it to get the bytes buffer.
+        const operation = buildOperation(model, nsIndex, this.pkFactory);
+        let operationBuffer;
+        try {
+          operationBuffer = BSON.serialize(operation);
+        } catch (cause) {
+          throw new MongoInvalidArgumentError(`Could not serialize operation to BSON`, { cause });
+        }
+
+        validateBufferSize('ops', operationBuffer, maxBsonObjectSize);
+
+        // Check if the operation buffer can fit in the command. If it can,
+        // then add the operation to the document sequence and increment the
+        // current length as long as the ops don't exceed the maxWriteBatchSize.
+        if (
+          commandLength + operationBuffer.length < maxMessageSizeBytes &&
+          command.ops.documents.length < maxWriteBatchSize
+        ) {
+          // Pushing to the ops document sequence returns the total byte length of the document sequence.
+          commandLength = MESSAGE_OVERHEAD_BYTES + command.ops.push(operation, operationBuffer);
+          // Increment the builder's current model index.
+          this.currentModelIndex++;
+        } else {
+          // The operation cannot fit in the current command and will need to
+          // go in the next batch. Exit the loop.
+          break;
+        }
+      } else {
+        // The namespace is not already in the nsInfo so we will set it in the map, and
+        // construct our nsInfo and ops documents and buffers.
+        namespaces.set(ns, currentNamespaceIndex);
+        const nsInfo = { ns: ns };
+        const operation = buildOperation(model, currentNamespaceIndex, this.pkFactory);
+        let nsInfoBuffer;
+        let operationBuffer;
+        try {
+          nsInfoBuffer = BSON.serialize(nsInfo);
+          operationBuffer = BSON.serialize(operation);
+        } catch (cause) {
+          throw new MongoInvalidArgumentError(`Could not serialize ns info to BSON`, { cause });
+        }
+
+        validateBufferSize('nsInfo', nsInfoBuffer, maxBsonObjectSize);
+        validateBufferSize('ops', operationBuffer, maxBsonObjectSize);
+
+        // Check if the operation and nsInfo buffers can fit in the command. If they
+        // can, then add the operation and nsInfo to their respective document
+        // sequences and increment the current length as long as the ops don't exceed
+        // the maxWriteBatchSize.
+        if (
+          commandLength + nsInfoBuffer.length + operationBuffer.length < maxMessageSizeBytes &&
+          command.ops.documents.length < maxWriteBatchSize
+        ) {
+          // Pushing to the ops document sequence returns the total byte length of the document sequence.
+          commandLength =
+            MESSAGE_OVERHEAD_BYTES +
+            command.nsInfo.push(nsInfo, nsInfoBuffer) +
+            command.ops.push(operation, operationBuffer);
+          // We've added a new namespace, increment the namespace index.
+          currentNamespaceIndex++;
+          // Increment the builder's current model index.
+          this.currentModelIndex++;
+        } else {
+          // The operation cannot fit in the current command and will need to
+          // go in the next batch. Exit the loop.
+          break;
+        }
+      }
+    }
+    // Set the last operations and return the command.
+    this.lastOperations = command.ops.documents;
+    return command;
+  }
+
+  private baseCommand(): ClientBulkWriteCommand {
+    const command: ClientBulkWriteCommand = {
+      bulkWrite: 1,
+      errorsOnly: this.errorsOnly,
+      ordered: this.options.ordered ?? true,
+      ops: new DocumentSequence('ops'),
+      nsInfo: new DocumentSequence('nsInfo')
+    };
+    // Add bypassDocumentValidation if it was present in the options.
+    if (this.options.bypassDocumentValidation != null) {
+      command.bypassDocumentValidation = this.options.bypassDocumentValidation;
+    }
+    // Add let if it was present in the options.
+    if (this.options.let) {
+      command.let = this.options.let;
+    }
+
+    // we check for undefined specifically here to allow falsy values
+    // eslint-disable-next-line no-restricted-syntax
+    if (this.options.comment !== undefined) {
+      command.comment = this.options.comment;
+    }
+
+    return command;
+  }
+}
+
+function validateBufferSize(name: string, buffer: Uint8Array, maxBsonObjectSize: number) {
+  if (buffer.length > maxBsonObjectSize) {
+    throw new MongoInvalidArgumentError(
+      `Client bulk write operation ${name} of length ${buffer.length} exceeds the max bson object size of ${maxBsonObjectSize}`
+    );
+  }
+}
+
+/** @internal */
+interface ClientInsertOperation {
+  insert: number;
+  document: OptionalId<Document>;
+}
+
+/**
+ * Build the insert one operation.
+ * @param model - The insert one model.
+ * @param index - The namespace index.
+ * @returns the operation.
+ */
+export const buildInsertOneOperation = (
+  model: ClientInsertOneModel<Document>,
+  index: number,
+  pkFactory: PkFactory
+): ClientInsertOperation => {
+  const document: ClientInsertOperation = {
+    insert: index,
+    document: model.document
+  };
+  document.document._id = model.document._id ?? pkFactory.createPk();
+  return document;
+};
+
+/** @internal */
+export interface ClientDeleteOperation {
+  delete: number;
+  multi: boolean;
+  filter: Filter<Document>;
+  hint?: Hint;
+  collation?: CollationOptions;
+}
+
+/**
+ * Build the delete one operation.
+ * @param model - The insert many model.
+ * @param index - The namespace index.
+ * @returns the operation.
+ */
+export const buildDeleteOneOperation = (
+  model: ClientDeleteOneModel<Document>,
+  index: number
+): Document => {
+  return createDeleteOperation(model, index, false);
+};
+
+/**
+ * Build the delete many operation.
+ * @param model - The delete many model.
+ * @param index - The namespace index.
+ * @returns the operation.
+ */
+export const buildDeleteManyOperation = (
+  model: ClientDeleteManyModel<Document>,
+  index: number
+): Document => {
+  return createDeleteOperation(model, index, true);
+};
+
+/**
+ * Creates a delete operation based on the parameters.
+ */
+function createDeleteOperation(
+  model: ClientDeleteOneModel<Document> | ClientDeleteManyModel<Document>,
+  index: number,
+  multi: boolean
+): ClientDeleteOperation {
+  const document: ClientDeleteOperation = {
+    delete: index,
+    multi: multi,
+    filter: model.filter
+  };
+  if (model.hint) {
+    document.hint = model.hint;
+  }
+  if (model.collation) {
+    document.collation = model.collation;
+  }
+  return document;
+}
+
+/** @internal */
+export interface ClientUpdateOperation {
+  update: number;
+  multi: boolean;
+  filter: Filter<Document>;
+  updateMods: UpdateFilter<Document> | Document[];
+  hint?: Hint;
+  upsert?: boolean;
+  arrayFilters?: Document[];
+  collation?: CollationOptions;
+}
+
+/**
+ * Build the update one operation.
+ * @param model - The update one model.
+ * @param index - The namespace index.
+ * @returns the operation.
+ */
+export const buildUpdateOneOperation = (
+  model: ClientUpdateOneModel<Document>,
+  index: number
+): ClientUpdateOperation => {
+  return createUpdateOperation(model, index, false);
+};
+
+/**
+ * Build the update many operation.
+ * @param model - The update many model.
+ * @param index - The namespace index.
+ * @returns the operation.
+ */
+export const buildUpdateManyOperation = (
+  model: ClientUpdateManyModel<Document>,
+  index: number
+): ClientUpdateOperation => {
+  return createUpdateOperation(model, index, true);
+};
+
+/**
+ * Validate the update document.
+ * @param update - The update document.
+ */
+function validateUpdate(update: Document) {
+  if (!hasAtomicOperators(update)) {
+    throw new MongoAPIError(
+      'Client bulk write update models must only contain atomic modifiers (start with $) and must not be empty.'
+    );
+  }
+}
+
+/**
+ * Creates a delete operation based on the parameters.
+ */
+function createUpdateOperation(
+  model: ClientUpdateOneModel<Document> | ClientUpdateManyModel<Document>,
+  index: number,
+  multi: boolean
+): ClientUpdateOperation {
+  // Update documents provided in UpdateOne and UpdateMany write models are
+  // required only to contain atomic modifiers (i.e. keys that start with "$").
+  // Drivers MUST throw an error if an update document is empty or if the
+  // document's first key does not start with "$".
+  validateUpdate(model.update);
+  const document: ClientUpdateOperation = {
+    update: index,
+    multi: multi,
+    filter: model.filter,
+    updateMods: model.update
+  };
+  if (model.hint) {
+    document.hint = model.hint;
+  }
+  if (model.upsert) {
+    document.upsert = model.upsert;
+  }
+  if (model.arrayFilters) {
+    document.arrayFilters = model.arrayFilters;
+  }
+  if (model.collation) {
+    document.collation = model.collation;
+  }
+  return document;
+}
+
+/** @internal */
+export interface ClientReplaceOneOperation {
+  update: number;
+  multi: boolean;
+  filter: Filter<Document>;
+  updateMods: WithoutId<Document>;
+  hint?: Hint;
+  upsert?: boolean;
+  collation?: CollationOptions;
+}
+
+/**
+ * Build the replace one operation.
+ * @param model - The replace one model.
+ * @param index - The namespace index.
+ * @returns the operation.
+ */
+export const buildReplaceOneOperation = (
+  model: ClientReplaceOneModel<Document>,
+  index: number
+): ClientReplaceOneOperation => {
+  if (hasAtomicOperators(model.replacement)) {
+    throw new MongoAPIError(
+      'Client bulk write replace models must not contain atomic modifiers (start with $) and must not be empty.'
+    );
+  }
+
+  const document: ClientReplaceOneOperation = {
+    update: index,
+    multi: false,
+    filter: model.filter,
+    updateMods: model.replacement
+  };
+  if (model.hint) {
+    document.hint = model.hint;
+  }
+  if (model.upsert) {
+    document.upsert = model.upsert;
+  }
+  if (model.collation) {
+    document.collation = model.collation;
+  }
+  return document;
+};
+
+/** @internal */
+export function buildOperation(
+  model: AnyClientBulkWriteModel<Document>,
+  index: number,
+  pkFactory: PkFactory
+): Document {
+  switch (model.name) {
+    case 'insertOne':
+      return buildInsertOneOperation(model, index, pkFactory);
+    case 'deleteOne':
+      return buildDeleteOneOperation(model, index);
+    case 'deleteMany':
+      return buildDeleteManyOperation(model, index);
+    case 'updateOne':
+      return buildUpdateOneOperation(model, index);
+    case 'updateMany':
+      return buildUpdateManyOperation(model, index);
+    case 'replaceOne':
+      return buildReplaceOneOperation(model, index);
+  }
+}
diff --git a/backend/node_modules/mongodb/src/operations/client_bulk_write/common.ts b/backend/node_modules/mongodb/src/operations/client_bulk_write/common.ts
new file mode 100644
index 0000000..c5b96d2
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/client_bulk_write/common.ts
@@ -0,0 +1,271 @@
+import { type Document } from '../../bson';
+import type { Filter, OptionalId, UpdateFilter, WithoutId } from '../../mongo_types';
+import type { CollationOptions, CommandOperationOptions } from '../../operations/command';
+import type { Hint } from '../../operations/operation';
+
+/** @public */
+export interface ClientBulkWriteOptions extends CommandOperationOptions {
+  /**
+   * If true, when an insert fails, don't execute the remaining writes.
+   * If false, continue with remaining inserts when one fails.
+   * @defaultValue `true` - inserts are ordered by default
+   */
+  ordered?: boolean;
+  /**
+   * Allow driver to bypass schema validation.
+   * @defaultValue `false` - documents will be validated by default
+   **/
+  bypassDocumentValidation?: boolean;
+  /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+  let?: Document;
+  /**
+   * Whether detailed results for each successful operation should be included in the returned
+   * BulkWriteResult.
+   */
+  verboseResults?: boolean;
+}
+
+/** @public */
+export interface ClientWriteModel {
+  /**
+   * The namespace for the write.
+   *
+   * A namespace is a combination of the database name and the name of the collection: `<database-name>.<collection>`.
+   * All documents belong to a namespace.
+   *
+   * @see https://www.mongodb.com/docs/manual/reference/limits/#std-label-faq-dev-namespace
+   */
+  namespace: string;
+}
+
+/** @public */
+export interface ClientInsertOneModel<TSchema> extends ClientWriteModel {
+  name: 'insertOne';
+  /** The document to insert. */
+  document: OptionalId<TSchema>;
+}
+
+/** @public */
+export interface ClientDeleteOneModel<TSchema> extends ClientWriteModel {
+  name: 'deleteOne';
+  /**
+   * The filter used to determine if a document should be deleted.
+   * For a deleteOne operation, the first match is removed.
+   */
+  filter: Filter<TSchema>;
+  /** Specifies a collation. */
+  collation?: CollationOptions;
+  /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+  hint?: Hint;
+}
+
+/** @public */
+export interface ClientDeleteManyModel<TSchema> extends ClientWriteModel {
+  name: 'deleteMany';
+  /**
+   * The filter used to determine if a document should be deleted.
+   * For a deleteMany operation, all matches are removed.
+   */
+  filter: Filter<TSchema>;
+  /** Specifies a collation. */
+  collation?: CollationOptions;
+  /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+  hint?: Hint;
+}
+
+/** @public */
+export interface ClientReplaceOneModel<TSchema> extends ClientWriteModel {
+  name: 'replaceOne';
+  /**
+   * The filter used to determine if a document should be replaced.
+   * For a replaceOne operation, the first match is replaced.
+   */
+  filter: Filter<TSchema>;
+  /** The document with which to replace the matched document. */
+  replacement: WithoutId<TSchema>;
+  /** Specifies a collation. */
+  collation?: CollationOptions;
+  /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+  hint?: Hint;
+  /** When true, creates a new document if no document matches the query. */
+  upsert?: boolean;
+}
+
+/** @public */
+export interface ClientUpdateOneModel<TSchema> extends ClientWriteModel {
+  name: 'updateOne';
+  /**
+   * The filter used to determine if a document should be updated.
+   * For an updateOne operation, the first match is updated.
+   */
+  filter: Filter<TSchema>;
+  /**
+   * The modifications to apply. The value can be either:
+   * UpdateFilter<Document> - A document that contains update operator expressions,
+   * Document[] - an aggregation pipeline.
+   */
+  update: UpdateFilter<TSchema> | Document[];
+  /** A set of filters specifying to which array elements an update should apply. */
+  arrayFilters?: Document[];
+  /** Specifies a collation. */
+  collation?: CollationOptions;
+  /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+  hint?: Hint;
+  /** When true, creates a new document if no document matches the query. */
+  upsert?: boolean;
+}
+
+/** @public */
+export interface ClientUpdateManyModel<TSchema> extends ClientWriteModel {
+  name: 'updateMany';
+  /**
+   * The filter used to determine if a document should be updated.
+   * For an updateMany operation, all matches are updated.
+   */
+  filter: Filter<TSchema>;
+  /**
+   * The modifications to apply. The value can be either:
+   * UpdateFilter<Document> - A document that contains update operator expressions,
+   * Document[] - an aggregation pipeline.
+   */
+  update: UpdateFilter<TSchema> | Document[];
+  /** A set of filters specifying to which array elements an update should apply. */
+  arrayFilters?: Document[];
+  /** Specifies a collation. */
+  collation?: CollationOptions;
+  /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+  hint?: Hint;
+  /** When true, creates a new document if no document matches the query. */
+  upsert?: boolean;
+}
+
+/**
+ * Used to represent any of the client bulk write models that can be passed as an array
+ * to MongoClient#bulkWrite.
+ * @public
+ */
+export type AnyClientBulkWriteModel<TSchema extends Document> =
+  | ClientInsertOneModel<TSchema>
+  | ClientReplaceOneModel<TSchema>
+  | ClientUpdateOneModel<TSchema>
+  | ClientUpdateManyModel<TSchema>
+  | ClientDeleteOneModel<TSchema>
+  | ClientDeleteManyModel<TSchema>;
+
+/**
+ * A mapping of namespace strings to collections schemas.
+ * @public
+ *
+ * @example
+ * ```ts
+ * type MongoDBSchemas = {
+ *   'db.books': Book;
+ *   'db.authors': Author;
+ * }
+ *
+ * const model: ClientBulkWriteModel<MongoDBSchemas> = {
+ *   namespace: 'db.books'
+ *   name: 'insertOne',
+ *   document: { title: 'Practical MongoDB Aggregations', authorName: 3 } // error `authorName` cannot be number
+ * };
+ * ```
+ *
+ * The type of the `namespace` field narrows other parts of the BulkWriteModel to use the correct schema for type assertions.
+ *
+ */
+export type ClientBulkWriteModel<
+  SchemaMap extends Record<string, Document> = Record<string, Document>
+> = {
+  [Namespace in keyof SchemaMap]: AnyClientBulkWriteModel<SchemaMap[Namespace]> & {
+    namespace: Namespace;
+  };
+}[keyof SchemaMap];
+
+/** @public */
+export interface ClientBulkWriteResult {
+  /**
+   * Whether the bulk write was acknowledged.
+   */
+  readonly acknowledged: boolean;
+  /**
+   * The total number of documents inserted across all insert operations.
+   */
+  readonly insertedCount: number;
+  /**
+   * The total number of documents upserted across all update operations.
+   */
+  readonly upsertedCount: number;
+  /**
+   * The total number of documents matched across all update operations.
+   */
+  readonly matchedCount: number;
+  /**
+   * The total number of documents modified across all update operations.
+   */
+  readonly modifiedCount: number;
+  /**
+   * The total number of documents deleted across all delete operations.
+   */
+  readonly deletedCount: number;
+  /**
+   * The results of each individual insert operation that was successfully performed.
+   */
+  readonly insertResults?: ReadonlyMap<number, ClientInsertOneResult>;
+  /**
+   * The results of each individual update operation that was successfully performed.
+   */
+  readonly updateResults?: ReadonlyMap<number, ClientUpdateResult>;
+  /**
+   * The results of each individual delete operation that was successfully performed.
+   */
+  readonly deleteResults?: ReadonlyMap<number, ClientDeleteResult>;
+}
+
+/** @public */
+export interface ClientBulkWriteError {
+  code: number;
+  message: string;
+}
+
+/** @public */
+export interface ClientInsertOneResult {
+  /**
+   * The _id of the inserted document.
+   */
+  insertedId: any;
+}
+
+/** @public */
+export interface ClientUpdateResult {
+  /**
+   * The number of documents that matched the filter.
+   */
+  matchedCount: number;
+
+  /**
+   * The number of documents that were modified.
+   */
+  modifiedCount: number;
+
+  /**
+   * The _id field of the upserted document if an upsert occurred.
+   *
+   * It MUST be possible to discern between a BSON Null upserted ID value and this field being
+   * unset. If necessary, drivers MAY add a didUpsert boolean field to differentiate between
+   * these two cases.
+   */
+  upsertedId?: any;
+
+  /**
+   * Determines if the upsert did include an _id, which includes the case of the _id being null.
+   */
+  didUpsert: boolean;
+}
+
+/** @public */
+export interface ClientDeleteResult {
+  /**
+   * The number of documents that were deleted.
+   */
+  deletedCount: number;
+}
diff --git a/backend/node_modules/mongodb/src/operations/client_bulk_write/executor.ts b/backend/node_modules/mongodb/src/operations/client_bulk_write/executor.ts
new file mode 100644
index 0000000..6d12c79
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/client_bulk_write/executor.ts
@@ -0,0 +1,149 @@
+import { type Document } from '../../bson';
+import { CursorTimeoutContext, CursorTimeoutMode } from '../../cursor/abstract_cursor';
+import { ClientBulkWriteCursor } from '../../cursor/client_bulk_write_cursor';
+import {
+  MongoClientBulkWriteError,
+  MongoClientBulkWriteExecutionError,
+  MongoInvalidArgumentError,
+  MongoServerError
+} from '../../error';
+import { type MongoClient } from '../../mongo_client';
+import { TimeoutContext } from '../../timeout';
+import { resolveTimeoutOptions } from '../../utils';
+import { WriteConcern } from '../../write_concern';
+import { executeOperation } from '../execute_operation';
+import { ClientBulkWriteOperation } from './client_bulk_write';
+import { ClientBulkWriteCommandBuilder } from './command_builder';
+import {
+  type AnyClientBulkWriteModel,
+  type ClientBulkWriteOptions,
+  type ClientBulkWriteResult
+} from './common';
+import { ClientBulkWriteResultsMerger } from './results_merger';
+
+/**
+ * Responsible for executing a client bulk write.
+ * @internal
+ */
+export class ClientBulkWriteExecutor {
+  private readonly client: MongoClient;
+  private readonly options: ClientBulkWriteOptions;
+  private readonly operations: ReadonlyArray<AnyClientBulkWriteModel<Document>>;
+
+  /**
+   * Instantiate the executor.
+   * @param client - The mongo client.
+   * @param operations - The user supplied bulk write models.
+   * @param options - The bulk write options.
+   */
+  constructor(
+    client: MongoClient,
+    operations: ReadonlyArray<AnyClientBulkWriteModel<Document>>,
+    options?: ClientBulkWriteOptions
+  ) {
+    if (operations.length === 0) {
+      throw new MongoClientBulkWriteExecutionError('No client bulk write models were provided.');
+    }
+
+    this.client = client;
+    this.operations = operations;
+    this.options = {
+      ordered: true,
+      bypassDocumentValidation: false,
+      verboseResults: false,
+      ...options
+    };
+
+    // If no write concern was provided, we inherit one from the client.
+    if (!this.options.writeConcern) {
+      this.options.writeConcern = WriteConcern.fromOptions(this.client.s.options);
+    }
+
+    if (this.options.writeConcern?.w === 0) {
+      if (this.options.verboseResults) {
+        throw new MongoInvalidArgumentError(
+          'Cannot request unacknowledged write concern and verbose results'
+        );
+      }
+
+      if (this.options.ordered) {
+        throw new MongoInvalidArgumentError(
+          'Cannot request unacknowledged write concern and ordered writes'
+        );
+      }
+    }
+  }
+
+  /**
+   * Execute the client bulk write. Will split commands into batches and exhaust the cursors
+   * for each, then merge the results into one.
+   * @returns The result.
+   */
+  async execute(): Promise<ClientBulkWriteResult> {
+    // The command builder will take the user provided models and potential split the batch
+    // into multiple commands due to size.
+    const pkFactory = this.client.s.options.pkFactory;
+    const commandBuilder = new ClientBulkWriteCommandBuilder(
+      this.operations,
+      this.options,
+      pkFactory
+    );
+    // Unacknowledged writes need to execute all batches and return { ok: 1}
+    const resolvedOptions = resolveTimeoutOptions(this.client, this.options);
+    const context = TimeoutContext.create(resolvedOptions);
+
+    if (this.options.writeConcern?.w === 0) {
+      while (commandBuilder.hasNextBatch()) {
+        const operation = new ClientBulkWriteOperation(commandBuilder, this.options);
+        await executeOperation(this.client, operation, context);
+      }
+      return ClientBulkWriteResultsMerger.unacknowledged();
+    } else {
+      const resultsMerger = new ClientBulkWriteResultsMerger(this.options);
+      // For each command will will create and exhaust a cursor for the results.
+      while (commandBuilder.hasNextBatch()) {
+        const cursorContext = new CursorTimeoutContext(context, Symbol());
+        const options = {
+          ...this.options,
+          timeoutContext: cursorContext,
+          ...(resolvedOptions.timeoutMS != null && { timeoutMode: CursorTimeoutMode.LIFETIME })
+        };
+        const cursor = new ClientBulkWriteCursor(this.client, commandBuilder, options);
+        try {
+          await resultsMerger.merge(cursor);
+        } catch (error) {
+          // Write concern errors are recorded in the writeConcernErrors field on MongoClientBulkWriteError.
+          // When a write concern error is encountered, it should not terminate execution of the bulk write
+          // for either ordered or unordered bulk writes. However, drivers MUST throw an exception at the end
+          // of execution if any write concern errors were observed.
+          if (error instanceof MongoServerError && !(error instanceof MongoClientBulkWriteError)) {
+            // Server side errors need to be wrapped inside a MongoClientBulkWriteError, where the root
+            // cause is the error property and a partial result is to be included.
+            const bulkWriteError = new MongoClientBulkWriteError({
+              message: 'Mongo client bulk write encountered an error during execution'
+            });
+            bulkWriteError.cause = error;
+            bulkWriteError.partialResult = resultsMerger.bulkWriteResult;
+            throw bulkWriteError;
+          } else {
+            // Client side errors are just thrown.
+            throw error;
+          }
+        }
+      }
+
+      // If we have write concern errors or unordered write errors at the end we throw.
+      if (resultsMerger.writeConcernErrors.length > 0 || resultsMerger.writeErrors.size > 0) {
+        const error = new MongoClientBulkWriteError({
+          message: 'Mongo client bulk write encountered errors during execution.'
+        });
+        error.writeConcernErrors = resultsMerger.writeConcernErrors;
+        error.writeErrors = resultsMerger.writeErrors;
+        error.partialResult = resultsMerger.bulkWriteResult;
+        throw error;
+      }
+
+      return resultsMerger.bulkWriteResult;
+    }
+  }
+}
diff --git a/backend/node_modules/mongodb/src/operations/client_bulk_write/results_merger.ts b/backend/node_modules/mongodb/src/operations/client_bulk_write/results_merger.ts
new file mode 100644
index 0000000..1a0f0a9
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/client_bulk_write/results_merger.ts
@@ -0,0 +1,260 @@
+import { MongoWriteConcernError } from '../..';
+import { type Document } from '../../bson';
+import { type ClientBulkWriteCursor } from '../../cursor/client_bulk_write_cursor';
+import { MongoClientBulkWriteError } from '../../error';
+import {
+  type ClientBulkWriteError,
+  type ClientBulkWriteOptions,
+  type ClientBulkWriteResult,
+  type ClientDeleteResult,
+  type ClientInsertOneResult,
+  type ClientUpdateResult
+} from './common';
+
+/**
+ * Unacknowledged bulk writes are always the same.
+ */
+const UNACKNOWLEDGED = {
+  acknowledged: false,
+  insertedCount: 0,
+  upsertedCount: 0,
+  matchedCount: 0,
+  modifiedCount: 0,
+  deletedCount: 0,
+  insertResults: undefined,
+  updateResults: undefined,
+  deleteResults: undefined
+};
+
+interface ClientBulkWriteResultAccumulation {
+  /**
+   * Whether the bulk write was acknowledged.
+   */
+  acknowledged: boolean;
+  /**
+   * The total number of documents inserted across all insert operations.
+   */
+  insertedCount: number;
+  /**
+   * The total number of documents upserted across all update operations.
+   */
+  upsertedCount: number;
+  /**
+   * The total number of documents matched across all update operations.
+   */
+  matchedCount: number;
+  /**
+   * The total number of documents modified across all update operations.
+   */
+  modifiedCount: number;
+  /**
+   * The total number of documents deleted across all delete operations.
+   */
+  deletedCount: number;
+  /**
+   * The results of each individual insert operation that was successfully performed.
+   */
+  insertResults?: Map<number, ClientInsertOneResult>;
+  /**
+   * The results of each individual update operation that was successfully performed.
+   */
+  updateResults?: Map<number, ClientUpdateResult>;
+  /**
+   * The results of each individual delete operation that was successfully performed.
+   */
+  deleteResults?: Map<number, ClientDeleteResult>;
+}
+
+/**
+ * Merges client bulk write cursor responses together into a single result.
+ * @internal
+ */
+export class ClientBulkWriteResultsMerger {
+  private result: ClientBulkWriteResultAccumulation;
+  private options: ClientBulkWriteOptions;
+  private currentBatchOffset: number;
+  writeConcernErrors: Document[];
+  writeErrors: Map<number, ClientBulkWriteError>;
+
+  /**
+   * @returns The standard unacknowledged bulk write result.
+   */
+  static unacknowledged(): ClientBulkWriteResult {
+    return UNACKNOWLEDGED;
+  }
+
+  /**
+   * Instantiate the merger.
+   * @param options - The options.
+   */
+  constructor(options: ClientBulkWriteOptions) {
+    this.options = options;
+    this.currentBatchOffset = 0;
+    this.writeConcernErrors = [];
+    this.writeErrors = new Map();
+    this.result = {
+      acknowledged: true,
+      insertedCount: 0,
+      upsertedCount: 0,
+      matchedCount: 0,
+      modifiedCount: 0,
+      deletedCount: 0,
+      insertResults: undefined,
+      updateResults: undefined,
+      deleteResults: undefined
+    };
+
+    if (options.verboseResults) {
+      this.result.insertResults = new Map<number, ClientInsertOneResult>();
+      this.result.updateResults = new Map<number, ClientUpdateResult>();
+      this.result.deleteResults = new Map<number, ClientDeleteResult>();
+    }
+  }
+
+  /**
+   * Get the bulk write result object.
+   */
+  get bulkWriteResult(): ClientBulkWriteResult {
+    return {
+      acknowledged: this.result.acknowledged,
+      insertedCount: this.result.insertedCount,
+      upsertedCount: this.result.upsertedCount,
+      matchedCount: this.result.matchedCount,
+      modifiedCount: this.result.modifiedCount,
+      deletedCount: this.result.deletedCount,
+      insertResults: this.result.insertResults,
+      updateResults: this.result.updateResults,
+      deleteResults: this.result.deleteResults
+    };
+  }
+
+  /**
+   * Merge the results in the cursor to the existing result.
+   * @param currentBatchOffset - The offset index to the original models.
+   * @param response - The cursor response.
+   * @param documents - The documents in the cursor.
+   * @returns The current result.
+   */
+  async merge(cursor: ClientBulkWriteCursor): Promise<ClientBulkWriteResult> {
+    let writeConcernErrorResult;
+    try {
+      for await (const document of cursor) {
+        // Only add to maps if ok: 1
+        if (document.ok === 1) {
+          if (this.options.verboseResults) {
+            this.processDocument(cursor, document);
+          }
+        } else {
+          // If an individual write error is encountered during an ordered bulk write, drivers MUST
+          // record the error in writeErrors and immediately throw the exception. Otherwise, drivers
+          // MUST continue to iterate the results cursor and execute any further bulkWrite batches.
+          if (this.options.ordered) {
+            const error = new MongoClientBulkWriteError({
+              message: 'Mongo client ordered bulk write encountered a write error.'
+            });
+            error.writeErrors.set(document.idx + this.currentBatchOffset, {
+              code: document.code,
+              message: document.errmsg
+            });
+            error.partialResult = this.result;
+            throw error;
+          } else {
+            this.writeErrors.set(document.idx + this.currentBatchOffset, {
+              code: document.code,
+              message: document.errmsg
+            });
+          }
+        }
+      }
+    } catch (error) {
+      if (error instanceof MongoWriteConcernError) {
+        const result = error.result;
+        writeConcernErrorResult = {
+          insertedCount: result.nInserted,
+          upsertedCount: result.nUpserted,
+          matchedCount: result.nMatched,
+          modifiedCount: result.nModified,
+          deletedCount: result.nDeleted,
+          writeConcernError: result.writeConcernError
+        };
+        if (this.options.verboseResults && result.cursor.firstBatch) {
+          for (const document of result.cursor.firstBatch) {
+            if (document.ok === 1) {
+              this.processDocument(cursor, document);
+            }
+          }
+        }
+      } else {
+        throw error;
+      }
+    } finally {
+      // Update the counts from the cursor response.
+      if (cursor.response) {
+        const response = cursor.response;
+        this.incrementCounts(response);
+      }
+
+      // Increment the batch offset.
+      this.currentBatchOffset += cursor.operations.length;
+    }
+
+    // If we have write concern errors ensure they are added.
+    if (writeConcernErrorResult) {
+      const writeConcernError = writeConcernErrorResult.writeConcernError as Document;
+      this.incrementCounts(writeConcernErrorResult);
+      this.writeConcernErrors.push({
+        code: writeConcernError.code,
+        message: writeConcernError.errmsg
+      });
+    }
+
+    return this.result;
+  }
+
+  /**
+   * Process an individual document in the results.
+   * @param cursor - The cursor.
+   * @param document - The document to process.
+   */
+  private processDocument(cursor: ClientBulkWriteCursor, document: Document) {
+    // Get the corresponding operation from the command.
+    const operation = cursor.operations[document.idx];
+    // Handle insert results.
+    if ('insert' in operation) {
+      this.result.insertResults?.set(document.idx + this.currentBatchOffset, {
+        insertedId: operation.document._id
+      });
+    }
+    // Handle update results.
+    if ('update' in operation) {
+      const result: ClientUpdateResult = {
+        matchedCount: document.n,
+        modifiedCount: document.nModified ?? 0,
+        // Check if the bulk did actually upsert.
+        didUpsert: document.upserted != null
+      };
+      if (document.upserted) {
+        result.upsertedId = document.upserted._id;
+      }
+      this.result.updateResults?.set(document.idx + this.currentBatchOffset, result);
+    }
+    // Handle delete results.
+    if ('delete' in operation) {
+      this.result.deleteResults?.set(document.idx + this.currentBatchOffset, {
+        deletedCount: document.n
+      });
+    }
+  }
+
+  /**
+   * Increment the result counts.
+   * @param document - The document with the results.
+   */
+  private incrementCounts(document: Document) {
+    this.result.insertedCount += document.insertedCount;
+    this.result.upsertedCount += document.upsertedCount;
+    this.result.matchedCount += document.matchedCount;
+    this.result.modifiedCount += document.modifiedCount;
+    this.result.deletedCount += document.deletedCount;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/operations/collections.ts b/backend/node_modules/mongodb/src/operations/collections.ts
new file mode 100644
index 0000000..5ed9629
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/collections.ts
@@ -0,0 +1,47 @@
+import { Collection } from '../collection';
+import type { Db } from '../db';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { AbstractOperation, type OperationOptions } from './operation';
+
+export interface CollectionsOptions extends OperationOptions {
+  nameOnly?: boolean;
+}
+
+/** @internal */
+export class CollectionsOperation extends AbstractOperation<Collection[]> {
+  override options: CollectionsOptions;
+  db: Db;
+
+  constructor(db: Db, options: CollectionsOptions) {
+    super(options);
+    this.options = options;
+    this.db = db;
+  }
+
+  override get commandName() {
+    return 'listCollections' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined
+  ): Promise<Collection[]> {
+    // Let's get the collection names
+    const documents = await this.db
+      .listCollections(
+        {},
+        { ...this.options, nameOnly: true, readPreference: this.readPreference, session }
+      )
+      .toArray();
+    const collections: Collection[] = [];
+    for (const { name } of documents) {
+      if (!name.includes('$')) {
+        // Filter collections removing any illegal ones
+        collections.push(new Collection(this.db, name, this.db.s.options));
+      }
+    }
+    // Return the collection objects
+    return collections;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/operations/command.ts b/backend/node_modules/mongodb/src/operations/command.ts
new file mode 100644
index 0000000..dcb289a
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/command.ts
@@ -0,0 +1,181 @@
+import type { BSONSerializeOptions, Document } from '../bson';
+import { type MongoDBResponseConstructor } from '../cmap/wire_protocol/responses';
+import { MongoInvalidArgumentError } from '../error';
+import {
+  decorateWithExplain,
+  Explain,
+  type ExplainOptions,
+  validateExplainTimeoutOptions
+} from '../explain';
+import { ReadConcern } from '../read_concern';
+import type { ReadPreference } from '../read_preference';
+import type { Server } from '../sdam/server';
+import { MIN_SECONDARY_WRITE_WIRE_VERSION } from '../sdam/server_selection';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import { commandSupportsReadConcern, maxWireVersion, MongoDBNamespace } from '../utils';
+import { WriteConcern, type WriteConcernOptions } from '../write_concern';
+import type { ReadConcernLike } from './../read_concern';
+import { AbstractOperation, Aspect, type OperationOptions } from './operation';
+
+/** @public */
+export interface CollationOptions {
+  locale: string;
+  caseLevel?: boolean;
+  caseFirst?: string;
+  strength?: number;
+  numericOrdering?: boolean;
+  alternate?: string;
+  maxVariable?: string;
+  backwards?: boolean;
+  normalization?: boolean;
+}
+
+/** @public */
+export interface CommandOperationOptions
+  extends OperationOptions,
+    WriteConcernOptions,
+    ExplainOptions {
+  /** Specify a read concern and level for the collection. (only MongoDB 3.2 or higher supported) */
+  readConcern?: ReadConcernLike;
+  /** Collation */
+  collation?: CollationOptions;
+  /**
+   * maxTimeMS is a server-side time limit in milliseconds for processing an operation.
+   */
+  maxTimeMS?: number;
+  /**
+   * Comment to apply to the operation.
+   *
+   * In server versions pre-4.4, 'comment' must be string.  A server
+   * error will be thrown if any other type is provided.
+   *
+   * In server versions 4.4 and above, 'comment' can be any valid BSON type.
+   */
+  comment?: unknown;
+  /** Should retry failed writes */
+  retryWrites?: boolean;
+
+  // Admin command overrides.
+  dbName?: string;
+  authdb?: string;
+  noResponse?: boolean;
+}
+
+/** @internal */
+export interface OperationParent {
+  s: { namespace: MongoDBNamespace };
+  readConcern?: ReadConcern;
+  writeConcern?: WriteConcern;
+  readPreference?: ReadPreference;
+  bsonOptions?: BSONSerializeOptions;
+  timeoutMS?: number;
+}
+
+/** @internal */
+export abstract class CommandOperation<T> extends AbstractOperation<T> {
+  override options: CommandOperationOptions;
+  readConcern?: ReadConcern;
+  writeConcern?: WriteConcern;
+  explain?: Explain;
+
+  constructor(parent?: OperationParent, options?: CommandOperationOptions) {
+    super(options);
+    this.options = options ?? {};
+
+    // NOTE: this was explicitly added for the add/remove user operations, it's likely
+    //       something we'd want to reconsider. Perhaps those commands can use `Admin`
+    //       as a parent?
+    const dbNameOverride = options?.dbName || options?.authdb;
+    if (dbNameOverride) {
+      this.ns = new MongoDBNamespace(dbNameOverride, '$cmd');
+    } else {
+      this.ns = parent
+        ? parent.s.namespace.withCollection('$cmd')
+        : new MongoDBNamespace('admin', '$cmd');
+    }
+
+    this.readConcern = ReadConcern.fromOptions(options);
+    this.writeConcern = WriteConcern.fromOptions(options);
+
+    if (this.hasAspect(Aspect.EXPLAINABLE)) {
+      this.explain = Explain.fromOptions(options);
+      if (this.explain) validateExplainTimeoutOptions(this.options, this.explain);
+    } else if (options?.explain != null) {
+      throw new MongoInvalidArgumentError(`Option "explain" is not supported on this command`);
+    }
+  }
+
+  override get canRetryWrite(): boolean {
+    if (this.hasAspect(Aspect.EXPLAINABLE)) {
+      return this.explain == null;
+    }
+    return super.canRetryWrite;
+  }
+
+  public async executeCommand<T extends MongoDBResponseConstructor>(
+    server: Server,
+    session: ClientSession | undefined,
+    cmd: Document,
+    timeoutContext: TimeoutContext,
+    responseType: T | undefined
+  ): Promise<typeof responseType extends undefined ? Document : InstanceType<T>>;
+
+  public async executeCommand(
+    server: Server,
+    session: ClientSession | undefined,
+    cmd: Document,
+    timeoutContext: TimeoutContext
+  ): Promise<Document>;
+
+  async executeCommand(
+    server: Server,
+    session: ClientSession | undefined,
+    cmd: Document,
+    timeoutContext: TimeoutContext,
+    responseType?: MongoDBResponseConstructor
+  ): Promise<Document> {
+    this.server = server;
+
+    const options = {
+      ...this.options,
+      ...this.bsonOptions,
+      timeoutContext,
+      readPreference: this.readPreference,
+      session
+    };
+
+    const serverWireVersion = maxWireVersion(server);
+    const inTransaction = this.session && this.session.inTransaction();
+
+    if (this.readConcern && commandSupportsReadConcern(cmd) && !inTransaction) {
+      Object.assign(cmd, { readConcern: this.readConcern });
+    }
+
+    if (this.trySecondaryWrite && serverWireVersion < MIN_SECONDARY_WRITE_WIRE_VERSION) {
+      options.omitReadPreference = true;
+    }
+
+    if (this.writeConcern && this.hasAspect(Aspect.WRITE_OPERATION) && !inTransaction) {
+      WriteConcern.apply(cmd, this.writeConcern);
+    }
+
+    if (
+      options.collation &&
+      typeof options.collation === 'object' &&
+      !this.hasAspect(Aspect.SKIP_COLLATION)
+    ) {
+      Object.assign(cmd, { collation: options.collation });
+    }
+
+    if (typeof options.maxTimeMS === 'number') {
+      cmd.maxTimeMS = options.maxTimeMS;
+    }
+
+    if (this.hasAspect(Aspect.EXPLAINABLE) && this.explain) {
+      cmd = decorateWithExplain(cmd, this.explain);
+    }
+
+    return await server.command(this.ns, cmd, options, responseType);
+  }
+}
diff --git a/backend/node_modules/mongodb/src/operations/count.ts b/backend/node_modules/mongodb/src/operations/count.ts
new file mode 100644
index 0000000..e3f9800
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/count.ts
@@ -0,0 +1,74 @@
+import type { Document } from '../bson';
+import type { Collection } from '../collection';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import type { MongoDBNamespace } from '../utils';
+import { CommandOperation, type CommandOperationOptions } from './command';
+import { Aspect, defineAspects } from './operation';
+
+/** @public */
+export interface CountOptions extends CommandOperationOptions {
+  /** The number of documents to skip. */
+  skip?: number;
+  /** The maximum amounts to count before aborting. */
+  limit?: number;
+  /**
+   * Number of milliseconds to wait before aborting the query.
+   */
+  maxTimeMS?: number;
+  /** An index name hint for the query. */
+  hint?: string | Document;
+}
+
+/** @internal */
+export class CountOperation extends CommandOperation<number> {
+  override options: CountOptions;
+  collectionName?: string;
+  query: Document;
+
+  constructor(namespace: MongoDBNamespace, filter: Document, options: CountOptions) {
+    super({ s: { namespace: namespace } } as unknown as Collection, options);
+
+    this.options = options;
+    this.collectionName = namespace.collection;
+    this.query = filter;
+  }
+
+  override get commandName() {
+    return 'count' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<number> {
+    const options = this.options;
+    const cmd: Document = {
+      count: this.collectionName,
+      query: this.query
+    };
+
+    if (typeof options.limit === 'number') {
+      cmd.limit = options.limit;
+    }
+
+    if (typeof options.skip === 'number') {
+      cmd.skip = options.skip;
+    }
+
+    if (options.hint != null) {
+      cmd.hint = options.hint;
+    }
+
+    if (typeof options.maxTimeMS === 'number') {
+      cmd.maxTimeMS = options.maxTimeMS;
+    }
+
+    const result = await super.executeCommand(server, session, cmd, timeoutContext);
+    return result ? result.n : 0;
+  }
+}
+
+defineAspects(CountOperation, [Aspect.READ_OPERATION, Aspect.RETRYABLE]);
diff --git a/backend/node_modules/mongodb/src/operations/create_collection.ts b/backend/node_modules/mongodb/src/operations/create_collection.ts
new file mode 100644
index 0000000..da278f8
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/create_collection.ts
@@ -0,0 +1,213 @@
+import type { Document } from '../bson';
+import {
+  MIN_SUPPORTED_QE_SERVER_VERSION,
+  MIN_SUPPORTED_QE_WIRE_VERSION
+} from '../cmap/wire_protocol/constants';
+import { Collection } from '../collection';
+import type { Db } from '../db';
+import { MongoCompatibilityError } from '../error';
+import type { PkFactory } from '../mongo_client';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import { CommandOperation, type CommandOperationOptions } from './command';
+import { CreateIndexesOperation } from './indexes';
+import { Aspect, defineAspects } from './operation';
+
+const ILLEGAL_COMMAND_FIELDS = new Set([
+  'w',
+  'wtimeout',
+  'timeoutMS',
+  'j',
+  'fsync',
+  'autoIndexId',
+  'pkFactory',
+  'raw',
+  'readPreference',
+  'session',
+  'readConcern',
+  'writeConcern',
+  'raw',
+  'fieldsAsRaw',
+  'useBigInt64',
+  'promoteLongs',
+  'promoteValues',
+  'promoteBuffers',
+  'bsonRegExp',
+  'serializeFunctions',
+  'ignoreUndefined',
+  'enableUtf8Validation'
+]);
+
+/** @public
+ * Configuration options for timeseries collections
+ * @see https://www.mongodb.com/docs/manual/core/timeseries-collections/
+ */
+export interface TimeSeriesCollectionOptions extends Document {
+  timeField: string;
+  metaField?: string;
+  granularity?: 'seconds' | 'minutes' | 'hours' | string;
+  bucketMaxSpanSeconds?: number;
+  bucketRoundingSeconds?: number;
+}
+
+/** @public
+ * Configuration options for clustered collections
+ * @see https://www.mongodb.com/docs/manual/core/clustered-collections/
+ */
+export interface ClusteredCollectionOptions extends Document {
+  name?: string;
+  key: Document;
+  unique: boolean;
+}
+
+/** @public */
+export interface CreateCollectionOptions extends CommandOperationOptions {
+  /** Create a capped collection */
+  capped?: boolean;
+  /** @deprecated Create an index on the _id field of the document. This option is deprecated in MongoDB 3.2+ and will be removed once no longer supported by the server. */
+  autoIndexId?: boolean;
+  /** The size of the capped collection in bytes */
+  size?: number;
+  /** The maximum number of documents in the capped collection */
+  max?: number;
+  /** Available for the MMAPv1 storage engine only to set the usePowerOf2Sizes and the noPadding flag */
+  flags?: number;
+  /** Allows users to specify configuration to the storage engine on a per-collection basis when creating a collection */
+  storageEngine?: Document;
+  /** Allows users to specify validation rules or expressions for the collection. For more information, see Document Validation */
+  validator?: Document;
+  /** Determines how strictly MongoDB applies the validation rules to existing documents during an update */
+  validationLevel?: string;
+  /** Determines whether to error on invalid documents or just warn about the violations but allow invalid documents to be inserted */
+  validationAction?: string;
+  /** Allows users to specify a default configuration for indexes when creating a collection */
+  indexOptionDefaults?: Document;
+  /** The name of the source collection or view from which to create the view. The name is not the full namespace of the collection or view (i.e., does not include the database name and implies the same database as the view to create) */
+  viewOn?: string;
+  /** An array that consists of the aggregation pipeline stage. Creates the view by applying the specified pipeline to the viewOn collection or view */
+  pipeline?: Document[];
+  /** A primary key factory function for generation of custom _id keys. */
+  pkFactory?: PkFactory;
+  /** A document specifying configuration options for timeseries collections. */
+  timeseries?: TimeSeriesCollectionOptions;
+  /** A document specifying configuration options for clustered collections. For MongoDB 5.3 and above. */
+  clusteredIndex?: ClusteredCollectionOptions;
+  /** The number of seconds after which a document in a timeseries or clustered collection expires. */
+  expireAfterSeconds?: number;
+  /** @experimental */
+  encryptedFields?: Document;
+  /**
+   * If set, enables pre-update and post-update document events to be included for any
+   * change streams that listen on this collection.
+   */
+  changeStreamPreAndPostImages?: { enabled: boolean };
+}
+
+/* @internal */
+const INVALID_QE_VERSION =
+  'Driver support of Queryable Encryption is incompatible with server. Upgrade server to use Queryable Encryption.';
+
+/** @internal */
+export class CreateCollectionOperation extends CommandOperation<Collection> {
+  override options: CreateCollectionOptions;
+  db: Db;
+  name: string;
+
+  constructor(db: Db, name: string, options: CreateCollectionOptions = {}) {
+    super(db, options);
+
+    this.options = options;
+    this.db = db;
+    this.name = name;
+  }
+
+  override get commandName() {
+    return 'create' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<Collection> {
+    const db = this.db;
+    const name = this.name;
+    const options = this.options;
+
+    const encryptedFields: Document | undefined =
+      options.encryptedFields ??
+      db.client.s.options.autoEncryption?.encryptedFieldsMap?.[`${db.databaseName}.${name}`];
+
+    if (encryptedFields) {
+      // Creating a QE collection required min server of 7.0.0
+      // TODO(NODE-5353): Get wire version information from connection.
+      if (
+        !server.loadBalanced &&
+        server.description.maxWireVersion < MIN_SUPPORTED_QE_WIRE_VERSION
+      ) {
+        throw new MongoCompatibilityError(
+          `${INVALID_QE_VERSION} The minimum server version required is ${MIN_SUPPORTED_QE_SERVER_VERSION}`
+        );
+      }
+      // Create auxilliary collections for queryable encryption support.
+      const escCollection = encryptedFields.escCollection ?? `enxcol_.${name}.esc`;
+      const ecocCollection = encryptedFields.ecocCollection ?? `enxcol_.${name}.ecoc`;
+
+      for (const collectionName of [escCollection, ecocCollection]) {
+        const createOp = new CreateCollectionOperation(db, collectionName, {
+          clusteredIndex: {
+            key: { _id: 1 },
+            unique: true
+          }
+        });
+        await createOp.executeWithoutEncryptedFieldsCheck(server, session, timeoutContext);
+      }
+
+      if (!options.encryptedFields) {
+        this.options = { ...this.options, encryptedFields };
+      }
+    }
+
+    const coll = await this.executeWithoutEncryptedFieldsCheck(server, session, timeoutContext);
+
+    if (encryptedFields) {
+      // Create the required index for queryable encryption support.
+      const createIndexOp = CreateIndexesOperation.fromIndexSpecification(
+        db,
+        name,
+        { __safeContent__: 1 },
+        {}
+      );
+      await createIndexOp.execute(server, session, timeoutContext);
+    }
+
+    return coll;
+  }
+
+  private async executeWithoutEncryptedFieldsCheck(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<Collection> {
+    const db = this.db;
+    const name = this.name;
+    const options = this.options;
+
+    const cmd: Document = { create: name };
+    for (const n in options) {
+      if (
+        (options as any)[n] != null &&
+        typeof (options as any)[n] !== 'function' &&
+        !ILLEGAL_COMMAND_FIELDS.has(n)
+      ) {
+        cmd[n] = (options as any)[n];
+      }
+    }
+    // otherwise just execute the command
+    await super.executeCommand(server, session, cmd, timeoutContext);
+    return new Collection(db, name, options);
+  }
+}
+
+defineAspects(CreateCollectionOperation, [Aspect.WRITE_OPERATION]);
diff --git a/backend/node_modules/mongodb/src/operations/delete.ts b/backend/node_modules/mongodb/src/operations/delete.ts
new file mode 100644
index 0000000..0e93ead
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/delete.ts
@@ -0,0 +1,184 @@
+import type { Document } from '../bson';
+import type { Collection } from '../collection';
+import { MongoCompatibilityError, MongoServerError } from '../error';
+import { type TODO_NODE_3286 } from '../mongo_types';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import { type MongoDBNamespace } from '../utils';
+import { type WriteConcernOptions } from '../write_concern';
+import { type CollationOptions, CommandOperation, type CommandOperationOptions } from './command';
+import { Aspect, defineAspects, type Hint } from './operation';
+
+/** @public */
+export interface DeleteOptions extends CommandOperationOptions, WriteConcernOptions {
+  /** If true, when an insert fails, don't execute the remaining writes. If false, continue with remaining inserts when one fails. */
+  ordered?: boolean;
+  /** Specifies the collation to use for the operation */
+  collation?: CollationOptions;
+  /** Specify that the update query should only consider plans using the hinted index */
+  hint?: string | Document;
+  /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+  let?: Document;
+}
+
+/** @public */
+export interface DeleteResult {
+  /** Indicates whether this write result was acknowledged. If not, then all other members of this result will be undefined. */
+  acknowledged: boolean;
+  /** The number of documents that were deleted */
+  deletedCount: number;
+}
+
+/** @public */
+export interface DeleteStatement {
+  /** The query that matches documents to delete. */
+  q: Document;
+  /** The number of matching documents to delete. */
+  limit: number;
+  /** Specifies the collation to use for the operation. */
+  collation?: CollationOptions;
+  /** A document or string that specifies the index to use to support the query predicate. */
+  hint?: Hint;
+}
+
+/** @internal */
+export class DeleteOperation extends CommandOperation<DeleteResult> {
+  override options: DeleteOptions;
+  statements: DeleteStatement[];
+
+  constructor(ns: MongoDBNamespace, statements: DeleteStatement[], options: DeleteOptions) {
+    super(undefined, options);
+    this.options = options;
+    this.ns = ns;
+    this.statements = statements;
+  }
+
+  override get commandName() {
+    return 'delete' as const;
+  }
+
+  override get canRetryWrite(): boolean {
+    if (super.canRetryWrite === false) {
+      return false;
+    }
+
+    return this.statements.every(op => (op.limit != null ? op.limit > 0 : true));
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<DeleteResult> {
+    const options = this.options ?? {};
+    const ordered = typeof options.ordered === 'boolean' ? options.ordered : true;
+    const command: Document = {
+      delete: this.ns.collection,
+      deletes: this.statements,
+      ordered
+    };
+
+    if (options.let) {
+      command.let = options.let;
+    }
+
+    // we check for undefined specifically here to allow falsy values
+    // eslint-disable-next-line no-restricted-syntax
+    if (options.comment !== undefined) {
+      command.comment = options.comment;
+    }
+
+    const unacknowledgedWrite = this.writeConcern && this.writeConcern.w === 0;
+    if (unacknowledgedWrite) {
+      if (this.statements.find((o: Document) => o.hint)) {
+        // TODO(NODE-3541): fix error for hint with unacknowledged writes
+        throw new MongoCompatibilityError(`hint is not supported with unacknowledged writes`);
+      }
+    }
+
+    const res: TODO_NODE_3286 = await super.executeCommand(
+      server,
+      session,
+      command,
+      timeoutContext
+    );
+    return res;
+  }
+}
+
+export class DeleteOneOperation extends DeleteOperation {
+  constructor(collection: Collection, filter: Document, options: DeleteOptions) {
+    super(collection.s.namespace, [makeDeleteStatement(filter, { ...options, limit: 1 })], options);
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<DeleteResult> {
+    const res: TODO_NODE_3286 = await super.execute(server, session, timeoutContext);
+    if (this.explain) return res;
+    if (res.code) throw new MongoServerError(res);
+    if (res.writeErrors) throw new MongoServerError(res.writeErrors[0]);
+
+    return {
+      acknowledged: this.writeConcern?.w !== 0,
+      deletedCount: res.n
+    };
+  }
+}
+export class DeleteManyOperation extends DeleteOperation {
+  constructor(collection: Collection, filter: Document, options: DeleteOptions) {
+    super(collection.s.namespace, [makeDeleteStatement(filter, options)], options);
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<DeleteResult> {
+    const res: TODO_NODE_3286 = await super.execute(server, session, timeoutContext);
+    if (this.explain) return res;
+    if (res.code) throw new MongoServerError(res);
+    if (res.writeErrors) throw new MongoServerError(res.writeErrors[0]);
+
+    return {
+      acknowledged: this.writeConcern?.w !== 0,
+      deletedCount: res.n
+    };
+  }
+}
+
+export function makeDeleteStatement(
+  filter: Document,
+  options: DeleteOptions & { limit?: number }
+): DeleteStatement {
+  const op: DeleteStatement = {
+    q: filter,
+    limit: typeof options.limit === 'number' ? options.limit : 0
+  };
+
+  if (options.collation) {
+    op.collation = options.collation;
+  }
+
+  if (options.hint) {
+    op.hint = options.hint;
+  }
+
+  return op;
+}
+
+defineAspects(DeleteOperation, [Aspect.RETRYABLE, Aspect.WRITE_OPERATION]);
+defineAspects(DeleteOneOperation, [
+  Aspect.RETRYABLE,
+  Aspect.WRITE_OPERATION,
+  Aspect.EXPLAINABLE,
+  Aspect.SKIP_COLLATION
+]);
+defineAspects(DeleteManyOperation, [
+  Aspect.WRITE_OPERATION,
+  Aspect.EXPLAINABLE,
+  Aspect.SKIP_COLLATION
+]);
diff --git a/backend/node_modules/mongodb/src/operations/distinct.ts b/backend/node_modules/mongodb/src/operations/distinct.ts
new file mode 100644
index 0000000..51f2a36
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/distinct.ts
@@ -0,0 +1,86 @@
+import type { Document } from '../bson';
+import type { Collection } from '../collection';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import { decorateWithCollation, decorateWithReadConcern } from '../utils';
+import { CommandOperation, type CommandOperationOptions } from './command';
+import { Aspect, defineAspects } from './operation';
+
+/** @public */
+export type DistinctOptions = CommandOperationOptions;
+
+/**
+ * Return a list of distinct values for the given key across a collection.
+ * @internal
+ */
+export class DistinctOperation extends CommandOperation<any[]> {
+  override options: DistinctOptions;
+  collection: Collection;
+  /** Field of the document to find distinct values for. */
+  key: string;
+  /** The query for filtering the set of documents to which we apply the distinct filter. */
+  query: Document;
+
+  /**
+   * Construct a Distinct operation.
+   *
+   * @param collection - Collection instance.
+   * @param key - Field of the document to find distinct values for.
+   * @param query - The query for filtering the set of documents to which we apply the distinct filter.
+   * @param options - Optional settings. See Collection.prototype.distinct for a list of options.
+   */
+  constructor(collection: Collection, key: string, query: Document, options?: DistinctOptions) {
+    super(collection, options);
+
+    this.options = options ?? {};
+    this.collection = collection;
+    this.key = key;
+    this.query = query;
+  }
+
+  override get commandName() {
+    return 'distinct' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<any[]> {
+    const coll = this.collection;
+    const key = this.key;
+    const query = this.query;
+    const options = this.options;
+
+    // Distinct command
+    const cmd: Document = {
+      distinct: coll.collectionName,
+      key: key,
+      query: query
+    };
+
+    // Add maxTimeMS if defined
+    if (typeof options.maxTimeMS === 'number') {
+      cmd.maxTimeMS = options.maxTimeMS;
+    }
+
+    // we check for undefined specifically here to allow falsy values
+    // eslint-disable-next-line no-restricted-syntax
+    if (typeof options.comment !== 'undefined') {
+      cmd.comment = options.comment;
+    }
+
+    // Do we have a readConcern specified
+    decorateWithReadConcern(cmd, coll, options);
+
+    // Have we specified collation
+    decorateWithCollation(cmd, coll, options);
+
+    const result = await super.executeCommand(server, session, cmd, timeoutContext);
+
+    return this.explain ? result : result.values;
+  }
+}
+
+defineAspects(DistinctOperation, [Aspect.READ_OPERATION, Aspect.RETRYABLE, Aspect.EXPLAINABLE]);
diff --git a/backend/node_modules/mongodb/src/operations/drop.ts b/backend/node_modules/mongodb/src/operations/drop.ts
new file mode 100644
index 0000000..0ead5a4
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/drop.ts
@@ -0,0 +1,116 @@
+import type { Document } from '../bson';
+import type { Db } from '../db';
+import { MONGODB_ERROR_CODES, MongoServerError } from '../error';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import { CommandOperation, type CommandOperationOptions } from './command';
+import { Aspect, defineAspects } from './operation';
+
+/** @public */
+export interface DropCollectionOptions extends CommandOperationOptions {
+  /** @experimental */
+  encryptedFields?: Document;
+}
+
+/** @internal */
+export class DropCollectionOperation extends CommandOperation<boolean> {
+  override options: DropCollectionOptions;
+  db: Db;
+  name: string;
+
+  constructor(db: Db, name: string, options: DropCollectionOptions = {}) {
+    super(db, options);
+    this.db = db;
+    this.options = options;
+    this.name = name;
+  }
+
+  override get commandName() {
+    return 'drop' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<boolean> {
+    const db = this.db;
+    const options = this.options;
+    const name = this.name;
+
+    const encryptedFieldsMap = db.client.s.options.autoEncryption?.encryptedFieldsMap;
+    let encryptedFields: Document | undefined =
+      options.encryptedFields ?? encryptedFieldsMap?.[`${db.databaseName}.${name}`];
+
+    if (!encryptedFields && encryptedFieldsMap) {
+      // If the MongoClient was configured with an encryptedFieldsMap,
+      // and no encryptedFields config was available in it or explicitly
+      // passed as an argument, the spec tells us to look one up using
+      // listCollections().
+      const listCollectionsResult = await db
+        .listCollections({ name }, { nameOnly: false })
+        .toArray();
+      encryptedFields = listCollectionsResult?.[0]?.options?.encryptedFields;
+    }
+
+    if (encryptedFields) {
+      const escCollection = encryptedFields.escCollection || `enxcol_.${name}.esc`;
+      const ecocCollection = encryptedFields.ecocCollection || `enxcol_.${name}.ecoc`;
+
+      for (const collectionName of [escCollection, ecocCollection]) {
+        // Drop auxilliary collections, ignoring potential NamespaceNotFound errors.
+        const dropOp = new DropCollectionOperation(db, collectionName);
+        try {
+          await dropOp.executeWithoutEncryptedFieldsCheck(server, session, timeoutContext);
+        } catch (err) {
+          if (
+            !(err instanceof MongoServerError) ||
+            err.code !== MONGODB_ERROR_CODES.NamespaceNotFound
+          ) {
+            throw err;
+          }
+        }
+      }
+    }
+
+    return await this.executeWithoutEncryptedFieldsCheck(server, session, timeoutContext);
+  }
+
+  private async executeWithoutEncryptedFieldsCheck(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<boolean> {
+    await super.executeCommand(server, session, { drop: this.name }, timeoutContext);
+    return true;
+  }
+}
+
+/** @public */
+export type DropDatabaseOptions = CommandOperationOptions;
+
+/** @internal */
+export class DropDatabaseOperation extends CommandOperation<boolean> {
+  override options: DropDatabaseOptions;
+
+  constructor(db: Db, options: DropDatabaseOptions) {
+    super(db, options);
+    this.options = options;
+  }
+  override get commandName() {
+    return 'dropDatabase' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<boolean> {
+    await super.executeCommand(server, session, { dropDatabase: 1 }, timeoutContext);
+    return true;
+  }
+}
+
+defineAspects(DropCollectionOperation, [Aspect.WRITE_OPERATION]);
+defineAspects(DropDatabaseOperation, [Aspect.WRITE_OPERATION]);
diff --git a/backend/node_modules/mongodb/src/operations/estimated_document_count.ts b/backend/node_modules/mongodb/src/operations/estimated_document_count.ts
new file mode 100644
index 0000000..5ab5aa4
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/estimated_document_count.ts
@@ -0,0 +1,61 @@
+import type { Document } from '../bson';
+import type { Collection } from '../collection';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import { CommandOperation, type CommandOperationOptions } from './command';
+import { Aspect, defineAspects } from './operation';
+
+/** @public */
+export interface EstimatedDocumentCountOptions extends CommandOperationOptions {
+  /**
+   * The maximum amount of time to allow the operation to run.
+   *
+   * This option is sent only if the caller explicitly provides a value. The default is to not send a value.
+   */
+  maxTimeMS?: number;
+}
+
+/** @internal */
+export class EstimatedDocumentCountOperation extends CommandOperation<number> {
+  override options: EstimatedDocumentCountOptions;
+  collectionName: string;
+
+  constructor(collection: Collection, options: EstimatedDocumentCountOptions = {}) {
+    super(collection, options);
+    this.options = options;
+    this.collectionName = collection.collectionName;
+  }
+
+  override get commandName() {
+    return 'count' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<number> {
+    const cmd: Document = { count: this.collectionName };
+
+    if (typeof this.options.maxTimeMS === 'number') {
+      cmd.maxTimeMS = this.options.maxTimeMS;
+    }
+
+    // we check for undefined specifically here to allow falsy values
+    // eslint-disable-next-line no-restricted-syntax
+    if (this.options.comment !== undefined) {
+      cmd.comment = this.options.comment;
+    }
+
+    const response = await super.executeCommand(server, session, cmd, timeoutContext);
+
+    return response?.n || 0;
+  }
+}
+
+defineAspects(EstimatedDocumentCountOperation, [
+  Aspect.READ_OPERATION,
+  Aspect.RETRYABLE,
+  Aspect.CURSOR_CREATING
+]);
diff --git a/backend/node_modules/mongodb/src/operations/execute_operation.ts b/backend/node_modules/mongodb/src/operations/execute_operation.ts
new file mode 100644
index 0000000..f59df27
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/execute_operation.ts
@@ -0,0 +1,299 @@
+import {
+  isRetryableReadError,
+  isRetryableWriteError,
+  MongoCompatibilityError,
+  MONGODB_ERROR_CODES,
+  MongoError,
+  MongoErrorLabel,
+  MongoExpiredSessionError,
+  MongoInvalidArgumentError,
+  MongoNetworkError,
+  MongoNotConnectedError,
+  MongoRuntimeError,
+  MongoServerError,
+  MongoTransactionError,
+  MongoUnexpectedServerResponseError
+} from '../error';
+import type { MongoClient } from '../mongo_client';
+import { ReadPreference } from '../read_preference';
+import type { ServerDescription } from '../sdam/server_description';
+import {
+  sameServerSelector,
+  secondaryWritableServerSelector,
+  type ServerSelector
+} from '../sdam/server_selection';
+import type { Topology } from '../sdam/topology';
+import type { ClientSession } from '../sessions';
+import { TimeoutContext } from '../timeout';
+import { supportsRetryableWrites } from '../utils';
+import { AbstractOperation, Aspect } from './operation';
+
+const MMAPv1_RETRY_WRITES_ERROR_CODE = MONGODB_ERROR_CODES.IllegalOperation;
+const MMAPv1_RETRY_WRITES_ERROR_MESSAGE =
+  'This MongoDB deployment does not support retryable writes. Please add retryWrites=false to your connection string.';
+
+type ResultTypeFromOperation<TOperation> =
+  TOperation extends AbstractOperation<infer K> ? K : never;
+
+/**
+ * Executes the given operation with provided arguments.
+ * @internal
+ *
+ * @remarks
+ * Allows for a single point of entry to provide features such as implicit sessions, which
+ * are required by the Driver Sessions specification in the event that a ClientSession is
+ * not provided.
+ *
+ * The expectation is that this function:
+ * - Connects the MongoClient if it has not already been connected, see {@link autoConnect}
+ * - Creates a session if none is provided and cleans up the session it creates
+ * - Tries an operation and retries under certain conditions, see {@link tryOperation}
+ *
+ * @typeParam T - The operation's type
+ * @typeParam TResult - The type of the operation's result, calculated from T
+ *
+ * @param client - The MongoClient to execute this operation with
+ * @param operation - The operation to execute
+ */
+export async function executeOperation<
+  T extends AbstractOperation<TResult>,
+  TResult = ResultTypeFromOperation<T>
+>(client: MongoClient, operation: T, timeoutContext?: TimeoutContext | null): Promise<TResult> {
+  if (!(operation instanceof AbstractOperation)) {
+    // TODO(NODE-3483): Extend MongoRuntimeError
+    throw new MongoRuntimeError('This method requires a valid operation instance');
+  }
+
+  const topology = await autoConnect(client);
+
+  // The driver sessions spec mandates that we implicitly create sessions for operations
+  // that are not explicitly provided with a session.
+  let session = operation.session;
+  let owner: symbol | undefined;
+
+  if (session == null) {
+    owner = Symbol();
+    session = client.startSession({ owner, explicit: false });
+  } else if (session.hasEnded) {
+    throw new MongoExpiredSessionError('Use of expired sessions is not permitted');
+  } else if (session.snapshotEnabled && !topology.capabilities.supportsSnapshotReads) {
+    throw new MongoCompatibilityError('Snapshot reads require MongoDB 5.0 or later');
+  } else if (session.client !== client) {
+    throw new MongoInvalidArgumentError('ClientSession must be from the same MongoClient');
+  }
+
+  const readPreference = operation.readPreference ?? ReadPreference.primary;
+  const inTransaction = !!session?.inTransaction();
+
+  const hasReadAspect = operation.hasAspect(Aspect.READ_OPERATION);
+
+  if (
+    inTransaction &&
+    !readPreference.equals(ReadPreference.primary) &&
+    (hasReadAspect || operation.commandName === 'runCommand')
+  ) {
+    throw new MongoTransactionError(
+      `Read preference in a transaction must be primary, not: ${readPreference.mode}`
+    );
+  }
+
+  if (session?.isPinned && session.transaction.isCommitted && !operation.bypassPinningCheck) {
+    session.unpin();
+  }
+
+  timeoutContext ??= TimeoutContext.create({
+    session,
+    serverSelectionTimeoutMS: client.s.options.serverSelectionTimeoutMS,
+    waitQueueTimeoutMS: client.s.options.waitQueueTimeoutMS,
+    timeoutMS: operation.options.timeoutMS
+  });
+
+  try {
+    return await tryOperation(operation, {
+      topology,
+      timeoutContext,
+      session,
+      readPreference
+    });
+  } finally {
+    if (session?.owner != null && session.owner === owner) {
+      await session.endSession();
+    }
+  }
+}
+
+/**
+ * Connects a client if it has not yet been connected
+ * @internal
+ */
+async function autoConnect(client: MongoClient): Promise<Topology> {
+  if (client.topology == null) {
+    if (client.s.hasBeenClosed) {
+      throw new MongoNotConnectedError('Client must be connected before running operations');
+    }
+    client.s.options[Symbol.for('@@mdb.skipPingOnConnect')] = true;
+    try {
+      await client.connect();
+      if (client.topology == null) {
+        throw new MongoRuntimeError(
+          'client.connect did not create a topology but also did not throw'
+        );
+      }
+      return client.topology;
+    } finally {
+      delete client.s.options[Symbol.for('@@mdb.skipPingOnConnect')];
+    }
+  }
+  return client.topology;
+}
+
+/** @internal */
+type RetryOptions = {
+  session: ClientSession | undefined;
+  readPreference: ReadPreference;
+  topology: Topology;
+  timeoutContext: TimeoutContext;
+};
+
+/**
+ * Executes an operation and retries as appropriate
+ * @internal
+ *
+ * @remarks
+ * Implements behaviour described in [Retryable Reads](https://github.com/mongodb/specifications/blob/master/source/retryable-reads/retryable-reads.md) and [Retryable
+ * Writes](https://github.com/mongodb/specifications/blob/master/source/retryable-writes/retryable-writes.md) specification
+ *
+ * This function:
+ * - performs initial server selection
+ * - attempts to execute an operation
+ * - retries the operation if it meets the criteria for a retryable read or a retryable write
+ *
+ * @typeParam T - The operation's type
+ * @typeParam TResult - The type of the operation's result, calculated from T
+ *
+ * @param operation - The operation to execute
+ * */
+async function tryOperation<
+  T extends AbstractOperation<TResult>,
+  TResult = ResultTypeFromOperation<T>
+>(
+  operation: T,
+  { topology, timeoutContext, session, readPreference }: RetryOptions
+): Promise<TResult> {
+  let selector: ReadPreference | ServerSelector;
+
+  if (operation.hasAspect(Aspect.MUST_SELECT_SAME_SERVER)) {
+    // GetMore and KillCursor operations must always select the same server, but run through
+    // server selection to potentially force monitor checks if the server is
+    // in an unknown state.
+    selector = sameServerSelector(operation.server?.description);
+  } else if (operation.trySecondaryWrite) {
+    // If operation should try to write to secondary use the custom server selector
+    // otherwise provide the read preference.
+    selector = secondaryWritableServerSelector(topology.commonWireVersion, readPreference);
+  } else {
+    selector = readPreference;
+  }
+
+  let server = await topology.selectServer(selector, {
+    session,
+    operationName: operation.commandName,
+    timeoutContext
+  });
+
+  const hasReadAspect = operation.hasAspect(Aspect.READ_OPERATION);
+  const hasWriteAspect = operation.hasAspect(Aspect.WRITE_OPERATION);
+  const inTransaction = session?.inTransaction() ?? false;
+
+  const willRetryRead = topology.s.options.retryReads && !inTransaction && operation.canRetryRead;
+
+  const willRetryWrite =
+    topology.s.options.retryWrites &&
+    !inTransaction &&
+    supportsRetryableWrites(server) &&
+    operation.canRetryWrite;
+
+  const willRetry =
+    operation.hasAspect(Aspect.RETRYABLE) &&
+    session != null &&
+    ((hasReadAspect && willRetryRead) || (hasWriteAspect && willRetryWrite));
+
+  if (hasWriteAspect && willRetryWrite && session != null) {
+    operation.options.willRetryWrite = true;
+    session.incrementTransactionNumber();
+  }
+
+  const maxTries = willRetry ? (timeoutContext.csotEnabled() ? Infinity : 2) : 1;
+  let previousOperationError: MongoError | undefined;
+  let previousServer: ServerDescription | undefined;
+
+  for (let tries = 0; tries < maxTries; tries++) {
+    if (previousOperationError) {
+      if (hasWriteAspect && previousOperationError.code === MMAPv1_RETRY_WRITES_ERROR_CODE) {
+        throw new MongoServerError({
+          message: MMAPv1_RETRY_WRITES_ERROR_MESSAGE,
+          errmsg: MMAPv1_RETRY_WRITES_ERROR_MESSAGE,
+          originalError: previousOperationError
+        });
+      }
+
+      if (operation.hasAspect(Aspect.COMMAND_BATCHING) && !operation.canRetryWrite) {
+        throw previousOperationError;
+      }
+
+      if (hasWriteAspect && !isRetryableWriteError(previousOperationError))
+        throw previousOperationError;
+
+      if (hasReadAspect && !isRetryableReadError(previousOperationError))
+        throw previousOperationError;
+
+      if (
+        previousOperationError instanceof MongoNetworkError &&
+        operation.hasAspect(Aspect.CURSOR_CREATING) &&
+        session != null &&
+        session.isPinned &&
+        !session.inTransaction()
+      ) {
+        session.unpin({ force: true, forceClear: true });
+      }
+
+      server = await topology.selectServer(selector, {
+        session,
+        operationName: operation.commandName,
+        previousServer
+      });
+
+      if (hasWriteAspect && !supportsRetryableWrites(server)) {
+        throw new MongoUnexpectedServerResponseError(
+          'Selected server does not support retryable writes'
+        );
+      }
+    }
+
+    try {
+      // If tries > 0 and we are command batching we need to reset the batch.
+      if (tries > 0 && operation.hasAspect(Aspect.COMMAND_BATCHING)) {
+        operation.resetBatch();
+      }
+      return await operation.execute(server, session, timeoutContext);
+    } catch (operationError) {
+      if (!(operationError instanceof MongoError)) throw operationError;
+      if (
+        previousOperationError != null &&
+        operationError.hasErrorLabel(MongoErrorLabel.NoWritesPerformed)
+      ) {
+        throw previousOperationError;
+      }
+      previousServer = server.description;
+      previousOperationError = operationError;
+
+      // Reset timeouts
+      timeoutContext.clear();
+    }
+  }
+
+  throw (
+    previousOperationError ??
+    new MongoRuntimeError('Tried to propagate retryability error, but no error was found.')
+  );
+}
diff --git a/backend/node_modules/mongodb/src/operations/find.ts b/backend/node_modules/mongodb/src/operations/find.ts
new file mode 100644
index 0000000..1775ea6
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/find.ts
@@ -0,0 +1,279 @@
+import type { Document } from '../bson';
+import { CursorResponse, ExplainedCursorResponse } from '../cmap/wire_protocol/responses';
+import { type AbstractCursorOptions, type CursorTimeoutMode } from '../cursor/abstract_cursor';
+import { MongoInvalidArgumentError } from '../error';
+import {
+  decorateWithExplain,
+  type ExplainOptions,
+  validateExplainTimeoutOptions
+} from '../explain';
+import { ReadConcern } from '../read_concern';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { formatSort, type Sort } from '../sort';
+import { type TimeoutContext } from '../timeout';
+import { type MongoDBNamespace, normalizeHintField } from '../utils';
+import { type CollationOptions, CommandOperation, type CommandOperationOptions } from './command';
+import { Aspect, defineAspects, type Hint } from './operation';
+
+/**
+ * @public
+ * @typeParam TSchema - Unused schema definition, deprecated usage, only specify `FindOptions` with no generic
+ */
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
+export interface FindOptions<TSchema extends Document = Document>
+  extends Omit<CommandOperationOptions, 'writeConcern' | 'explain'>,
+    AbstractCursorOptions {
+  /** Sets the limit of documents returned in the query. */
+  limit?: number;
+  /** Set to sort the documents coming back from the query. Array of indexes, `[['a', 1]]` etc. */
+  sort?: Sort;
+  /** The fields to return in the query. Object of fields to either include or exclude (one of, not both), `{'a':1, 'b': 1}` **or** `{'a': 0, 'b': 0}` */
+  projection?: Document;
+  /** Set to skip N documents ahead in your query (useful for pagination). */
+  skip?: number;
+  /** Tell the query to use specific indexes in the query. Object of indexes to use, `{'_id':1}` */
+  hint?: Hint;
+  /** Specify if the cursor can timeout. */
+  timeout?: boolean;
+  /** Specify if the cursor is tailable. */
+  tailable?: boolean;
+  /** Specify if the cursor is a tailable-await cursor. Requires `tailable` to be true */
+  awaitData?: boolean;
+  /** Set the batchSize for the getMoreCommand when iterating over the query results. */
+  batchSize?: number;
+  /** If true, returns only the index keys in the resulting documents. */
+  returnKey?: boolean;
+  /** The inclusive lower bound for a specific index */
+  min?: Document;
+  /** The exclusive upper bound for a specific index */
+  max?: Document;
+  /** Number of milliseconds to wait before aborting the query. */
+  maxTimeMS?: number;
+  /** The maximum amount of time for the server to wait on new documents to satisfy a tailable cursor query. Requires `tailable` and `awaitData` to be true */
+  maxAwaitTimeMS?: number;
+  /** The server normally times out idle cursors after an inactivity period (10 minutes) to prevent excess memory use. Set this option to prevent that. */
+  noCursorTimeout?: boolean;
+  /** Specify collation (MongoDB 3.4 or higher) settings for update operation (see 3.4 documentation for available fields). */
+  collation?: CollationOptions;
+  /** Allows disk use for blocking sort operations exceeding 100MB memory. (MongoDB 3.2 or higher) */
+  allowDiskUse?: boolean;
+  /** Determines whether to close the cursor after the first batch. Defaults to false. */
+  singleBatch?: boolean;
+  /** For queries against a sharded collection, allows the command (or subsequent getMore commands) to return partial results, rather than an error, if one or more queried shards are unavailable. */
+  allowPartialResults?: boolean;
+  /** Determines whether to return the record identifier for each document. If true, adds a field $recordId to the returned documents. */
+  showRecordId?: boolean;
+  /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+  let?: Document;
+  /**
+   * Option to enable an optimized code path for queries looking for a particular range of `ts` values in the oplog. Requires `tailable` to be true.
+   * @deprecated Starting from MongoDB 4.4 this flag is not needed and will be ignored.
+   */
+  oplogReplay?: boolean;
+
+  /**
+   * Specifies the verbosity mode for the explain output.
+   * @deprecated This API is deprecated in favor of `collection.find().explain()`.
+   */
+  explain?: ExplainOptions['explain'];
+  /** @internal*/
+  timeoutMode?: CursorTimeoutMode;
+}
+
+/** @internal */
+export class FindOperation extends CommandOperation<CursorResponse> {
+  /**
+   * @remarks WriteConcern can still be present on the options because
+   * we inherit options from the client/db/collection.  The
+   * key must be present on the options in order to delete it.
+   * This allows typescript to delete the key but will
+   * not allow a writeConcern to be assigned as a property on options.
+   */
+  override options: FindOptions & { writeConcern?: never };
+  filter: Document;
+
+  constructor(ns: MongoDBNamespace, filter: Document = {}, options: FindOptions = {}) {
+    super(undefined, options);
+
+    this.options = { ...options };
+    delete this.options.writeConcern;
+    this.ns = ns;
+
+    if (typeof filter !== 'object' || Array.isArray(filter)) {
+      throw new MongoInvalidArgumentError('Query filter must be a plain object or ObjectId');
+    }
+
+    // special case passing in an ObjectId as a filter
+    this.filter = filter != null && filter._bsontype === 'ObjectId' ? { _id: filter } : filter;
+  }
+
+  override get commandName() {
+    return 'find' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<CursorResponse> {
+    this.server = server;
+
+    const options = this.options;
+
+    let findCommand = makeFindCommand(this.ns, this.filter, options);
+    if (this.explain) {
+      validateExplainTimeoutOptions(this.options, this.explain);
+      findCommand = decorateWithExplain(findCommand, this.explain);
+    }
+
+    return await server.command(
+      this.ns,
+      findCommand,
+      {
+        ...this.options,
+        ...this.bsonOptions,
+        documentsReturnedIn: 'firstBatch',
+        session,
+        timeoutContext
+      },
+      this.explain ? ExplainedCursorResponse : CursorResponse
+    );
+  }
+}
+
+function makeFindCommand(ns: MongoDBNamespace, filter: Document, options: FindOptions): Document {
+  const findCommand: Document = {
+    find: ns.collection,
+    filter
+  };
+
+  if (options.sort) {
+    findCommand.sort = formatSort(options.sort);
+  }
+
+  if (options.projection) {
+    let projection = options.projection;
+    if (projection && Array.isArray(projection)) {
+      projection = projection.length
+        ? projection.reduce((result, field) => {
+            result[field] = 1;
+            return result;
+          }, {})
+        : { _id: 1 };
+    }
+
+    findCommand.projection = projection;
+  }
+
+  if (options.hint) {
+    findCommand.hint = normalizeHintField(options.hint);
+  }
+
+  if (typeof options.skip === 'number') {
+    findCommand.skip = options.skip;
+  }
+
+  if (typeof options.limit === 'number') {
+    if (options.limit < 0) {
+      findCommand.limit = -options.limit;
+      findCommand.singleBatch = true;
+    } else {
+      findCommand.limit = options.limit;
+    }
+  }
+
+  if (typeof options.batchSize === 'number') {
+    if (options.batchSize < 0) {
+      if (
+        options.limit &&
+        options.limit !== 0 &&
+        Math.abs(options.batchSize) < Math.abs(options.limit)
+      ) {
+        findCommand.limit = -options.batchSize;
+      }
+
+      findCommand.singleBatch = true;
+    } else {
+      findCommand.batchSize = options.batchSize;
+    }
+  }
+
+  if (typeof options.singleBatch === 'boolean') {
+    findCommand.singleBatch = options.singleBatch;
+  }
+
+  // we check for undefined specifically here to allow falsy values
+  // eslint-disable-next-line no-restricted-syntax
+  if (options.comment !== undefined) {
+    findCommand.comment = options.comment;
+  }
+
+  if (typeof options.maxTimeMS === 'number') {
+    findCommand.maxTimeMS = options.maxTimeMS;
+  }
+
+  const readConcern = ReadConcern.fromOptions(options);
+  if (readConcern) {
+    findCommand.readConcern = readConcern.toJSON();
+  }
+
+  if (options.max) {
+    findCommand.max = options.max;
+  }
+
+  if (options.min) {
+    findCommand.min = options.min;
+  }
+
+  if (typeof options.returnKey === 'boolean') {
+    findCommand.returnKey = options.returnKey;
+  }
+
+  if (typeof options.showRecordId === 'boolean') {
+    findCommand.showRecordId = options.showRecordId;
+  }
+
+  if (typeof options.tailable === 'boolean') {
+    findCommand.tailable = options.tailable;
+  }
+
+  if (typeof options.oplogReplay === 'boolean') {
+    findCommand.oplogReplay = options.oplogReplay;
+  }
+
+  if (typeof options.timeout === 'boolean') {
+    findCommand.noCursorTimeout = !options.timeout;
+  } else if (typeof options.noCursorTimeout === 'boolean') {
+    findCommand.noCursorTimeout = options.noCursorTimeout;
+  }
+
+  if (typeof options.awaitData === 'boolean') {
+    findCommand.awaitData = options.awaitData;
+  }
+
+  if (typeof options.allowPartialResults === 'boolean') {
+    findCommand.allowPartialResults = options.allowPartialResults;
+  }
+
+  if (options.collation) {
+    findCommand.collation = options.collation;
+  }
+
+  if (typeof options.allowDiskUse === 'boolean') {
+    findCommand.allowDiskUse = options.allowDiskUse;
+  }
+
+  if (options.let) {
+    findCommand.let = options.let;
+  }
+
+  return findCommand;
+}
+
+defineAspects(FindOperation, [
+  Aspect.READ_OPERATION,
+  Aspect.RETRYABLE,
+  Aspect.EXPLAINABLE,
+  Aspect.CURSOR_CREATING
+]);
diff --git a/backend/node_modules/mongodb/src/operations/find_and_modify.ts b/backend/node_modules/mongodb/src/operations/find_and_modify.ts
new file mode 100644
index 0000000..651bccc
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/find_and_modify.ts
@@ -0,0 +1,294 @@
+import type { Document } from '../bson';
+import type { Collection } from '../collection';
+import { MongoCompatibilityError, MongoInvalidArgumentError } from '../error';
+import { ReadPreference } from '../read_preference';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { formatSort, type Sort, type SortForCmd } from '../sort';
+import { type TimeoutContext } from '../timeout';
+import { decorateWithCollation, hasAtomicOperators, maxWireVersion } from '../utils';
+import { type WriteConcern, type WriteConcernSettings } from '../write_concern';
+import { CommandOperation, type CommandOperationOptions } from './command';
+import { Aspect, defineAspects } from './operation';
+
+/** @public */
+export const ReturnDocument = Object.freeze({
+  BEFORE: 'before',
+  AFTER: 'after'
+} as const);
+
+/** @public */
+export type ReturnDocument = (typeof ReturnDocument)[keyof typeof ReturnDocument];
+
+/** @public */
+export interface FindOneAndDeleteOptions extends CommandOperationOptions {
+  /** An optional hint for query optimization. See the {@link https://www.mongodb.com/docs/manual/reference/command/update/#update-command-hint|update command} reference for more information.*/
+  hint?: Document;
+  /** Limits the fields to return for all matching documents. */
+  projection?: Document;
+  /** Determines which document the operation modifies if the query selects multiple documents. */
+  sort?: Sort;
+  /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+  let?: Document;
+  /**
+   * Return the ModifyResult instead of the modified document. Defaults to false
+   */
+  includeResultMetadata?: boolean;
+}
+
+/** @public */
+export interface FindOneAndReplaceOptions extends CommandOperationOptions {
+  /** Allow driver to bypass schema validation. */
+  bypassDocumentValidation?: boolean;
+  /** An optional hint for query optimization. See the {@link https://www.mongodb.com/docs/manual/reference/command/update/#update-command-hint|update command} reference for more information.*/
+  hint?: Document;
+  /** Limits the fields to return for all matching documents. */
+  projection?: Document;
+  /** When set to 'after', returns the updated document rather than the original. The default is 'before'.  */
+  returnDocument?: ReturnDocument;
+  /** Determines which document the operation modifies if the query selects multiple documents. */
+  sort?: Sort;
+  /** Upsert the document if it does not exist. */
+  upsert?: boolean;
+  /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+  let?: Document;
+  /**
+   * Return the ModifyResult instead of the modified document. Defaults to false
+   */
+  includeResultMetadata?: boolean;
+}
+
+/** @public */
+export interface FindOneAndUpdateOptions extends CommandOperationOptions {
+  /** Optional list of array filters referenced in filtered positional operators */
+  arrayFilters?: Document[];
+  /** Allow driver to bypass schema validation. */
+  bypassDocumentValidation?: boolean;
+  /** An optional hint for query optimization. See the {@link https://www.mongodb.com/docs/manual/reference/command/update/#update-command-hint|update command} reference for more information.*/
+  hint?: Document;
+  /** Limits the fields to return for all matching documents. */
+  projection?: Document;
+  /** When set to 'after', returns the updated document rather than the original. The default is 'before'.  */
+  returnDocument?: ReturnDocument;
+  /** Determines which document the operation modifies if the query selects multiple documents. */
+  sort?: Sort;
+  /** Upsert the document if it does not exist. */
+  upsert?: boolean;
+  /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+  let?: Document;
+  /**
+   * Return the ModifyResult instead of the modified document. Defaults to false
+   */
+  includeResultMetadata?: boolean;
+}
+
+/** @internal */
+interface FindAndModifyCmdBase {
+  remove: boolean;
+  new: boolean;
+  upsert: boolean;
+  update?: Document;
+  sort?: SortForCmd;
+  fields?: Document;
+  bypassDocumentValidation?: boolean;
+  arrayFilters?: Document[];
+  maxTimeMS?: number;
+  let?: Document;
+  writeConcern?: WriteConcern | WriteConcernSettings;
+  /**
+   * Comment to apply to the operation.
+   *
+   * In server versions pre-4.4, 'comment' must be string.  A server
+   * error will be thrown if any other type is provided.
+   *
+   * In server versions 4.4 and above, 'comment' can be any valid BSON type.
+   */
+  comment?: unknown;
+}
+
+function configureFindAndModifyCmdBaseUpdateOpts(
+  cmdBase: FindAndModifyCmdBase,
+  options: FindOneAndReplaceOptions | FindOneAndUpdateOptions
+): FindAndModifyCmdBase {
+  cmdBase.new = options.returnDocument === ReturnDocument.AFTER;
+  cmdBase.upsert = options.upsert === true;
+
+  if (options.bypassDocumentValidation === true) {
+    cmdBase.bypassDocumentValidation = options.bypassDocumentValidation;
+  }
+  return cmdBase;
+}
+
+/** @internal */
+export class FindAndModifyOperation extends CommandOperation<Document> {
+  override options: FindOneAndReplaceOptions | FindOneAndUpdateOptions | FindOneAndDeleteOptions;
+  cmdBase: FindAndModifyCmdBase;
+  collection: Collection;
+  query: Document;
+  doc?: Document;
+
+  constructor(
+    collection: Collection,
+    query: Document,
+    options: FindOneAndReplaceOptions | FindOneAndUpdateOptions | FindOneAndDeleteOptions
+  ) {
+    super(collection, options);
+    this.options = options ?? {};
+    this.cmdBase = {
+      remove: false,
+      new: false,
+      upsert: false
+    };
+
+    options.includeResultMetadata ??= false;
+
+    const sort = formatSort(options.sort);
+    if (sort) {
+      this.cmdBase.sort = sort;
+    }
+
+    if (options.projection) {
+      this.cmdBase.fields = options.projection;
+    }
+
+    if (options.maxTimeMS) {
+      this.cmdBase.maxTimeMS = options.maxTimeMS;
+    }
+
+    // Decorate the findAndModify command with the write Concern
+    if (options.writeConcern) {
+      this.cmdBase.writeConcern = options.writeConcern;
+    }
+
+    if (options.let) {
+      this.cmdBase.let = options.let;
+    }
+
+    // we check for undefined specifically here to allow falsy values
+    // eslint-disable-next-line no-restricted-syntax
+    if (options.comment !== undefined) {
+      this.cmdBase.comment = options.comment;
+    }
+
+    // force primary read preference
+    this.readPreference = ReadPreference.primary;
+
+    this.collection = collection;
+    this.query = query;
+  }
+
+  override get commandName() {
+    return 'findAndModify' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<Document> {
+    const coll = this.collection;
+    const query = this.query;
+    const options = { ...this.options, ...this.bsonOptions };
+
+    // Create findAndModify command object
+    const cmd: Document = {
+      findAndModify: coll.collectionName,
+      query: query,
+      ...this.cmdBase
+    };
+
+    decorateWithCollation(cmd, coll, options);
+
+    if (options.hint) {
+      // TODO: once this method becomes a CommandOperation we will have the server
+      // in place to check.
+      const unacknowledgedWrite = this.writeConcern?.w === 0;
+      if (unacknowledgedWrite || maxWireVersion(server) < 8) {
+        throw new MongoCompatibilityError(
+          'The current topology does not support a hint on findAndModify commands'
+        );
+      }
+
+      cmd.hint = options.hint;
+    }
+
+    // Execute the command
+    const result = await super.executeCommand(server, session, cmd, timeoutContext);
+    return options.includeResultMetadata ? result : (result.value ?? null);
+  }
+}
+
+/** @internal */
+export class FindOneAndDeleteOperation extends FindAndModifyOperation {
+  constructor(collection: Collection, filter: Document, options: FindOneAndDeleteOptions) {
+    // Basic validation
+    if (filter == null || typeof filter !== 'object') {
+      throw new MongoInvalidArgumentError('Argument "filter" must be an object');
+    }
+
+    super(collection, filter, options);
+    this.cmdBase.remove = true;
+  }
+}
+
+/** @internal */
+export class FindOneAndReplaceOperation extends FindAndModifyOperation {
+  constructor(
+    collection: Collection,
+    filter: Document,
+    replacement: Document,
+    options: FindOneAndReplaceOptions
+  ) {
+    if (filter == null || typeof filter !== 'object') {
+      throw new MongoInvalidArgumentError('Argument "filter" must be an object');
+    }
+
+    if (replacement == null || typeof replacement !== 'object') {
+      throw new MongoInvalidArgumentError('Argument "replacement" must be an object');
+    }
+
+    if (hasAtomicOperators(replacement)) {
+      throw new MongoInvalidArgumentError('Replacement document must not contain atomic operators');
+    }
+
+    super(collection, filter, options);
+    this.cmdBase.update = replacement;
+    configureFindAndModifyCmdBaseUpdateOpts(this.cmdBase, options);
+  }
+}
+
+/** @internal */
+export class FindOneAndUpdateOperation extends FindAndModifyOperation {
+  constructor(
+    collection: Collection,
+    filter: Document,
+    update: Document,
+    options: FindOneAndUpdateOptions
+  ) {
+    if (filter == null || typeof filter !== 'object') {
+      throw new MongoInvalidArgumentError('Argument "filter" must be an object');
+    }
+
+    if (update == null || typeof update !== 'object') {
+      throw new MongoInvalidArgumentError('Argument "update" must be an object');
+    }
+
+    if (!hasAtomicOperators(update)) {
+      throw new MongoInvalidArgumentError('Update document requires atomic operators');
+    }
+
+    super(collection, filter, options);
+    this.cmdBase.update = update;
+    configureFindAndModifyCmdBaseUpdateOpts(this.cmdBase, options);
+
+    if (options.arrayFilters) {
+      this.cmdBase.arrayFilters = options.arrayFilters;
+    }
+  }
+}
+
+defineAspects(FindAndModifyOperation, [
+  Aspect.WRITE_OPERATION,
+  Aspect.RETRYABLE,
+  Aspect.EXPLAINABLE
+]);
diff --git a/backend/node_modules/mongodb/src/operations/get_more.ts b/backend/node_modules/mongodb/src/operations/get_more.ts
new file mode 100644
index 0000000..34317d5
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/get_more.ts
@@ -0,0 +1,110 @@
+import type { Long } from '../bson';
+import { CursorResponse } from '../cmap/wire_protocol/responses';
+import { MongoRuntimeError } from '../error';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import { maxWireVersion, type MongoDBNamespace } from '../utils';
+import { AbstractOperation, Aspect, defineAspects, type OperationOptions } from './operation';
+
+/** @internal */
+export interface GetMoreOptions extends OperationOptions {
+  /** Set the batchSize for the getMoreCommand when iterating over the query results. */
+  batchSize?: number;
+  /**
+   * Comment to apply to the operation.
+   *
+   * getMore only supports 'comment' in server versions 4.4 and above.
+   */
+  comment?: unknown;
+  /** Number of milliseconds to wait before aborting the query. */
+  maxTimeMS?: number;
+  /** TODO(NODE-4413): Address bug with maxAwaitTimeMS not being passed in from the cursor correctly */
+  maxAwaitTimeMS?: number;
+}
+
+/**
+ * GetMore command: https://www.mongodb.com/docs/manual/reference/command/getMore/
+ * @internal
+ */
+export interface GetMoreCommand {
+  getMore: Long;
+  collection: string;
+  batchSize?: number;
+  maxTimeMS?: number;
+  /** Only supported on wire versions 10 or greater */
+  comment?: unknown;
+}
+
+/** @internal */
+export class GetMoreOperation extends AbstractOperation {
+  cursorId: Long;
+  override options: GetMoreOptions;
+
+  constructor(ns: MongoDBNamespace, cursorId: Long, server: Server, options: GetMoreOptions) {
+    super(options);
+
+    this.options = options;
+    this.ns = ns;
+    this.cursorId = cursorId;
+    this.server = server;
+  }
+
+  override get commandName() {
+    return 'getMore' as const;
+  }
+  /**
+   * Although there is a server already associated with the get more operation, the signature
+   * for execute passes a server so we will just use that one.
+   */
+  override async execute(
+    server: Server,
+    _session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<CursorResponse> {
+    if (server !== this.server) {
+      throw new MongoRuntimeError('Getmore must run on the same server operation began on');
+    }
+
+    if (this.cursorId == null || this.cursorId.isZero()) {
+      throw new MongoRuntimeError('Unable to iterate cursor with no id');
+    }
+
+    const collection = this.ns.collection;
+    if (collection == null) {
+      // Cursors should have adopted the namespace returned by MongoDB
+      // which should always defined a collection name (even a pseudo one, ex. db.aggregate())
+      throw new MongoRuntimeError('A collection name must be determined before getMore');
+    }
+
+    const getMoreCmd: GetMoreCommand = {
+      getMore: this.cursorId,
+      collection
+    };
+
+    if (typeof this.options.batchSize === 'number') {
+      getMoreCmd.batchSize = Math.abs(this.options.batchSize);
+    }
+
+    if (typeof this.options.maxAwaitTimeMS === 'number') {
+      getMoreCmd.maxTimeMS = this.options.maxAwaitTimeMS;
+    }
+
+    // we check for undefined specifically here to allow falsy values
+    // eslint-disable-next-line no-restricted-syntax
+    if (this.options.comment !== undefined && maxWireVersion(server) >= 9) {
+      getMoreCmd.comment = this.options.comment;
+    }
+
+    const commandOptions = {
+      returnFieldSelector: null,
+      documentsReturnedIn: 'nextBatch',
+      timeoutContext,
+      ...this.options
+    };
+
+    return await server.command(this.ns, getMoreCmd, commandOptions, CursorResponse);
+  }
+}
+
+defineAspects(GetMoreOperation, [Aspect.READ_OPERATION, Aspect.MUST_SELECT_SAME_SERVER]);
diff --git a/backend/node_modules/mongodb/src/operations/indexes.ts b/backend/node_modules/mongodb/src/operations/indexes.ts
new file mode 100644
index 0000000..afd05f5
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/indexes.ts
@@ -0,0 +1,419 @@
+import type { Document } from '../bson';
+import { CursorResponse } from '../cmap/wire_protocol/responses';
+import type { Collection } from '../collection';
+import { type AbstractCursorOptions } from '../cursor/abstract_cursor';
+import { MongoCompatibilityError } from '../error';
+import { type OneOrMore } from '../mongo_types';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import { isObject, maxWireVersion, type MongoDBNamespace } from '../utils';
+import {
+  type CollationOptions,
+  CommandOperation,
+  type CommandOperationOptions,
+  type OperationParent
+} from './command';
+import { Aspect, defineAspects } from './operation';
+
+const VALID_INDEX_OPTIONS = new Set([
+  'background',
+  'unique',
+  'name',
+  'partialFilterExpression',
+  'sparse',
+  'hidden',
+  'expireAfterSeconds',
+  'storageEngine',
+  'collation',
+  'version',
+
+  // text indexes
+  'weights',
+  'default_language',
+  'language_override',
+  'textIndexVersion',
+
+  // 2d-sphere indexes
+  '2dsphereIndexVersion',
+
+  // 2d indexes
+  'bits',
+  'min',
+  'max',
+
+  // geoHaystack Indexes
+  'bucketSize',
+
+  // wildcard indexes
+  'wildcardProjection'
+]);
+
+/** @public */
+export type IndexDirection =
+  | -1
+  | 1
+  | '2d'
+  | '2dsphere'
+  | 'text'
+  | 'geoHaystack'
+  | 'hashed'
+  | number;
+
+function isIndexDirection(x: unknown): x is IndexDirection {
+  return (
+    typeof x === 'number' || x === '2d' || x === '2dsphere' || x === 'text' || x === 'geoHaystack'
+  );
+}
+/** @public */
+export type IndexSpecification = OneOrMore<
+  | string
+  | [string, IndexDirection]
+  | { [key: string]: IndexDirection }
+  | Map<string, IndexDirection>
+>;
+
+/** @public */
+export interface IndexInformationOptions extends ListIndexesOptions {
+  /**
+   * When `true`, an array of index descriptions is returned.
+   * When `false`, the driver returns an object that with keys corresponding to index names with values
+   * corresponding to the entries of the indexes' key.
+   *
+   * For example, the given the following indexes:
+   * ```
+   * [ { name: 'a_1', key: { a: 1 } }, { name: 'b_1_c_1' , key: { b: 1, c: 1 } }]
+   * ```
+   *
+   * When `full` is `true`, the above array is returned.  When `full` is `false`, the following is returned:
+   * ```
+   * {
+   *   'a_1': [['a', 1]],
+   *   'b_1_c_1': [['b', 1], ['c', 1]],
+   * }
+   * ```
+   */
+  full?: boolean;
+}
+
+/** @public */
+export interface IndexDescription
+  extends Pick<
+    CreateIndexesOptions,
+    | 'background'
+    | 'unique'
+    | 'partialFilterExpression'
+    | 'sparse'
+    | 'hidden'
+    | 'expireAfterSeconds'
+    | 'storageEngine'
+    | 'version'
+    | 'weights'
+    | 'default_language'
+    | 'language_override'
+    | 'textIndexVersion'
+    | '2dsphereIndexVersion'
+    | 'bits'
+    | 'min'
+    | 'max'
+    | 'bucketSize'
+    | 'wildcardProjection'
+  > {
+  collation?: CollationOptions;
+  name?: string;
+  key: { [key: string]: IndexDirection } | Map<string, IndexDirection>;
+}
+
+/** @public */
+export interface CreateIndexesOptions extends Omit<CommandOperationOptions, 'writeConcern'> {
+  /** Creates the index in the background, yielding whenever possible. */
+  background?: boolean;
+  /** Creates an unique index. */
+  unique?: boolean;
+  /** Override the autogenerated index name (useful if the resulting name is larger than 128 bytes) */
+  name?: string;
+  /** Creates a partial index based on the given filter object (MongoDB 3.2 or higher) */
+  partialFilterExpression?: Document;
+  /** Creates a sparse index. */
+  sparse?: boolean;
+  /** Allows you to expire data on indexes applied to a data (MongoDB 2.2 or higher) */
+  expireAfterSeconds?: number;
+  /** Allows users to configure the storage engine on a per-index basis when creating an index. (MongoDB 3.0 or higher) */
+  storageEngine?: Document;
+  /** (MongoDB 4.4. or higher) Specifies how many data-bearing members of a replica set, including the primary, must complete the index builds successfully before the primary marks the indexes as ready. This option accepts the same values for the "w" field in a write concern plus "votingMembers", which indicates all voting data-bearing nodes. */
+  commitQuorum?: number | string;
+  /** Specifies the index version number, either 0 or 1. */
+  version?: number;
+  // text indexes
+  weights?: Document;
+  default_language?: string;
+  language_override?: string;
+  textIndexVersion?: number;
+  // 2d-sphere indexes
+  '2dsphereIndexVersion'?: number;
+  // 2d indexes
+  bits?: number;
+  /** For geospatial indexes set the lower bound for the co-ordinates. */
+  min?: number;
+  /** For geospatial indexes set the high bound for the co-ordinates. */
+  max?: number;
+  // geoHaystack Indexes
+  bucketSize?: number;
+  // wildcard indexes
+  wildcardProjection?: Document;
+  /** Specifies that the index should exist on the target collection but should not be used by the query planner when executing operations. (MongoDB 4.4 or higher) */
+  hidden?: boolean;
+}
+
+function isSingleIndexTuple(t: unknown): t is [string, IndexDirection] {
+  return Array.isArray(t) && t.length === 2 && isIndexDirection(t[1]);
+}
+
+/**
+ * Converts an `IndexSpecification`, which can be specified in multiple formats, into a
+ * valid `key` for the createIndexes command.
+ */
+function constructIndexDescriptionMap(indexSpec: IndexSpecification): Map<string, IndexDirection> {
+  const key: Map<string, IndexDirection> = new Map();
+
+  const indexSpecs =
+    !Array.isArray(indexSpec) || isSingleIndexTuple(indexSpec) ? [indexSpec] : indexSpec;
+
+  // Iterate through array and handle different types
+  for (const spec of indexSpecs) {
+    if (typeof spec === 'string') {
+      key.set(spec, 1);
+    } else if (Array.isArray(spec)) {
+      key.set(spec[0], spec[1] ?? 1);
+    } else if (spec instanceof Map) {
+      for (const [property, value] of spec) {
+        key.set(property, value);
+      }
+    } else if (isObject(spec)) {
+      for (const [property, value] of Object.entries(spec)) {
+        key.set(property, value);
+      }
+    }
+  }
+
+  return key;
+}
+
+/**
+ * Receives an index description and returns a modified index description which has had invalid options removed
+ * from the description and has mapped the `version` option to the `v` option.
+ */
+function resolveIndexDescription(
+  description: IndexDescription
+): Omit<ResolvedIndexDescription, 'key'> {
+  const validProvidedOptions = Object.entries(description).filter(([optionName]) =>
+    VALID_INDEX_OPTIONS.has(optionName)
+  );
+
+  return Object.fromEntries(
+    // we support the `version` option, but the `createIndexes` command expects it to be the `v`
+    validProvidedOptions.map(([name, value]) => (name === 'version' ? ['v', value] : [name, value]))
+  );
+}
+
+/**
+ * @public
+ * The index information returned by the listIndexes command. https://www.mongodb.com/docs/manual/reference/command/listIndexes/#mongodb-dbcommand-dbcmd.listIndexes
+ */
+export type IndexDescriptionInfo = Omit<IndexDescription, 'key' | 'version'> & {
+  key: { [key: string]: IndexDirection };
+  v?: IndexDescription['version'];
+} & Document;
+
+/** @public */
+export type IndexDescriptionCompact = Record<string, [name: string, direction: IndexDirection][]>;
+
+/**
+ * @internal
+ *
+ * Internally, the driver represents index description keys with `Map`s to preserve key ordering.
+ * We don't require users to specify maps, so we transform user provided descriptions into
+ * "resolved" by converting the `key` into a JS `Map`, if it isn't already a map.
+ *
+ * Additionally, we support the `version` option, but the `createIndexes` command uses the field `v`
+ * to specify the index version so we map the value of `version` to `v`, if provided.
+ */
+type ResolvedIndexDescription = Omit<IndexDescription, 'key' | 'version'> & {
+  key: Map<string, IndexDirection>;
+  v?: IndexDescription['version'];
+};
+
+/** @internal */
+export class CreateIndexesOperation extends CommandOperation<string[]> {
+  override options: CreateIndexesOptions;
+  collectionName: string;
+  indexes: ReadonlyArray<ResolvedIndexDescription>;
+
+  private constructor(
+    parent: OperationParent,
+    collectionName: string,
+    indexes: IndexDescription[],
+    options?: CreateIndexesOptions
+  ) {
+    super(parent, options);
+
+    this.options = options ?? {};
+    this.collectionName = collectionName;
+    this.indexes = indexes.map((userIndex: IndexDescription): ResolvedIndexDescription => {
+      // Ensure the key is a Map to preserve index key ordering
+      const key =
+        userIndex.key instanceof Map ? userIndex.key : new Map(Object.entries(userIndex.key));
+      const name = userIndex.name ?? Array.from(key).flat().join('_');
+      const validIndexOptions = resolveIndexDescription(userIndex);
+      return {
+        ...validIndexOptions,
+        name,
+        key
+      };
+    });
+  }
+
+  static fromIndexDescriptionArray(
+    parent: OperationParent,
+    collectionName: string,
+    indexes: IndexDescription[],
+    options?: CreateIndexesOptions
+  ): CreateIndexesOperation {
+    return new CreateIndexesOperation(parent, collectionName, indexes, options);
+  }
+
+  static fromIndexSpecification(
+    parent: OperationParent,
+    collectionName: string,
+    indexSpec: IndexSpecification,
+    options: CreateIndexesOptions = {}
+  ): CreateIndexesOperation {
+    const key = constructIndexDescriptionMap(indexSpec);
+    const description: IndexDescription = { ...options, key };
+    return new CreateIndexesOperation(parent, collectionName, [description], options);
+  }
+
+  override get commandName() {
+    return 'createIndexes';
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<string[]> {
+    const options = this.options;
+    const indexes = this.indexes;
+
+    const serverWireVersion = maxWireVersion(server);
+
+    const cmd: Document = { createIndexes: this.collectionName, indexes };
+
+    if (options.commitQuorum != null) {
+      if (serverWireVersion < 9) {
+        throw new MongoCompatibilityError(
+          'Option `commitQuorum` for `createIndexes` not supported on servers < 4.4'
+        );
+      }
+      cmd.commitQuorum = options.commitQuorum;
+    }
+
+    // collation is set on each index, it should not be defined at the root
+    this.options.collation = undefined;
+
+    await super.executeCommand(server, session, cmd, timeoutContext);
+
+    const indexNames = indexes.map(index => index.name || '');
+    return indexNames;
+  }
+}
+
+/** @public */
+export type DropIndexesOptions = CommandOperationOptions;
+
+/** @internal */
+export class DropIndexOperation extends CommandOperation<Document> {
+  override options: DropIndexesOptions;
+  collection: Collection;
+  indexName: string;
+
+  constructor(collection: Collection, indexName: string, options?: DropIndexesOptions) {
+    super(collection, options);
+
+    this.options = options ?? {};
+    this.collection = collection;
+    this.indexName = indexName;
+  }
+
+  override get commandName() {
+    return 'dropIndexes' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<Document> {
+    const cmd = { dropIndexes: this.collection.collectionName, index: this.indexName };
+    return await super.executeCommand(server, session, cmd, timeoutContext);
+  }
+}
+
+/** @public */
+export type ListIndexesOptions = AbstractCursorOptions & {
+  /** @internal */
+  omitMaxTimeMS?: boolean;
+};
+
+/** @internal */
+export class ListIndexesOperation extends CommandOperation<CursorResponse> {
+  /**
+   * @remarks WriteConcern can still be present on the options because
+   * we inherit options from the client/db/collection.  The
+   * key must be present on the options in order to delete it.
+   * This allows typescript to delete the key but will
+   * not allow a writeConcern to be assigned as a property on options.
+   */
+  override options: ListIndexesOptions & { writeConcern?: never };
+  collectionNamespace: MongoDBNamespace;
+
+  constructor(collection: Collection, options?: ListIndexesOptions) {
+    super(collection, options);
+
+    this.options = { ...options };
+    delete this.options.writeConcern;
+    this.collectionNamespace = collection.s.namespace;
+  }
+
+  override get commandName() {
+    return 'listIndexes' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<CursorResponse> {
+    const serverWireVersion = maxWireVersion(server);
+
+    const cursor = this.options.batchSize ? { batchSize: this.options.batchSize } : {};
+
+    const command: Document = { listIndexes: this.collectionNamespace.collection, cursor };
+
+    // we check for undefined specifically here to allow falsy values
+    // eslint-disable-next-line no-restricted-syntax
+    if (serverWireVersion >= 9 && this.options.comment !== undefined) {
+      command.comment = this.options.comment;
+    }
+
+    return await super.executeCommand(server, session, command, timeoutContext, CursorResponse);
+  }
+}
+
+defineAspects(ListIndexesOperation, [
+  Aspect.READ_OPERATION,
+  Aspect.RETRYABLE,
+  Aspect.CURSOR_CREATING
+]);
+defineAspects(CreateIndexesOperation, [Aspect.WRITE_OPERATION]);
+defineAspects(DropIndexOperation, [Aspect.WRITE_OPERATION]);
diff --git a/backend/node_modules/mongodb/src/operations/insert.ts b/backend/node_modules/mongodb/src/operations/insert.ts
new file mode 100644
index 0000000..1a40763
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/insert.ts
@@ -0,0 +1,166 @@
+import type { Document } from '../bson';
+import type { BulkWriteOptions } from '../bulk/common';
+import type { Collection } from '../collection';
+import { MongoInvalidArgumentError, MongoServerError } from '../error';
+import type { InferIdType } from '../mongo_types';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import { maybeAddIdToDocuments, type MongoDBNamespace } from '../utils';
+import { WriteConcern } from '../write_concern';
+import { BulkWriteOperation } from './bulk_write';
+import { CommandOperation, type CommandOperationOptions } from './command';
+import { AbstractOperation, Aspect, defineAspects } from './operation';
+
+/** @internal */
+export class InsertOperation extends CommandOperation<Document> {
+  override options: BulkWriteOptions;
+  documents: Document[];
+
+  constructor(ns: MongoDBNamespace, documents: Document[], options: BulkWriteOptions) {
+    super(undefined, options);
+    this.options = { ...options, checkKeys: options.checkKeys ?? false };
+    this.ns = ns;
+    this.documents = documents;
+  }
+
+  override get commandName() {
+    return 'insert' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<Document> {
+    const options = this.options ?? {};
+    const ordered = typeof options.ordered === 'boolean' ? options.ordered : true;
+    const command: Document = {
+      insert: this.ns.collection,
+      documents: this.documents,
+      ordered
+    };
+
+    if (typeof options.bypassDocumentValidation === 'boolean') {
+      command.bypassDocumentValidation = options.bypassDocumentValidation;
+    }
+
+    // we check for undefined specifically here to allow falsy values
+    // eslint-disable-next-line no-restricted-syntax
+    if (options.comment !== undefined) {
+      command.comment = options.comment;
+    }
+
+    return await super.executeCommand(server, session, command, timeoutContext);
+  }
+}
+
+/** @public */
+export interface InsertOneOptions extends CommandOperationOptions {
+  /** Allow driver to bypass schema validation. */
+  bypassDocumentValidation?: boolean;
+  /** Force server to assign _id values instead of driver. */
+  forceServerObjectId?: boolean;
+}
+
+/** @public */
+export interface InsertOneResult<TSchema = Document> {
+  /** Indicates whether this write result was acknowledged. If not, then all other members of this result will be undefined */
+  acknowledged: boolean;
+  /** The identifier that was inserted. If the server generated the identifier, this value will be null as the driver does not have access to that data */
+  insertedId: InferIdType<TSchema>;
+}
+
+export class InsertOneOperation extends InsertOperation {
+  constructor(collection: Collection, doc: Document, options: InsertOneOptions) {
+    super(collection.s.namespace, maybeAddIdToDocuments(collection, [doc], options), options);
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<InsertOneResult> {
+    const res = await super.execute(server, session, timeoutContext);
+    if (res.code) throw new MongoServerError(res);
+    if (res.writeErrors) {
+      // This should be a WriteError but we can't change it now because of error hierarchy
+      throw new MongoServerError(res.writeErrors[0]);
+    }
+
+    return {
+      acknowledged: this.writeConcern?.w !== 0,
+      insertedId: this.documents[0]._id
+    };
+  }
+}
+
+/** @public */
+export interface InsertManyResult<TSchema = Document> {
+  /** Indicates whether this write result was acknowledged. If not, then all other members of this result will be undefined */
+  acknowledged: boolean;
+  /** The number of inserted documents for this operations */
+  insertedCount: number;
+  /** Map of the index of the inserted document to the id of the inserted document */
+  insertedIds: { [key: number]: InferIdType<TSchema> };
+}
+
+/** @internal */
+export class InsertManyOperation extends AbstractOperation<InsertManyResult> {
+  override options: BulkWriteOptions;
+  collection: Collection;
+  docs: ReadonlyArray<Document>;
+
+  constructor(collection: Collection, docs: ReadonlyArray<Document>, options: BulkWriteOptions) {
+    super(options);
+
+    if (!Array.isArray(docs)) {
+      throw new MongoInvalidArgumentError('Argument "docs" must be an array of documents');
+    }
+
+    this.options = options;
+    this.collection = collection;
+    this.docs = docs;
+  }
+
+  override get commandName() {
+    return 'insert' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<InsertManyResult> {
+    const coll = this.collection;
+    const options = { ...this.options, ...this.bsonOptions, readPreference: this.readPreference };
+    const writeConcern = WriteConcern.fromOptions(options);
+    const bulkWriteOperation = new BulkWriteOperation(
+      coll,
+      this.docs.map(document => ({
+        insertOne: { document }
+      })),
+      options
+    );
+
+    try {
+      const res = await bulkWriteOperation.execute(server, session, timeoutContext);
+      return {
+        acknowledged: writeConcern?.w !== 0,
+        insertedCount: res.insertedCount,
+        insertedIds: res.insertedIds
+      };
+    } catch (err) {
+      if (err && err.message === 'Operation must be an object with an operation key') {
+        throw new MongoInvalidArgumentError(
+          'Collection.insertMany() cannot be called with an array that has null/undefined values'
+        );
+      }
+      throw err;
+    }
+  }
+}
+
+defineAspects(InsertOperation, [Aspect.RETRYABLE, Aspect.WRITE_OPERATION]);
+defineAspects(InsertOneOperation, [Aspect.RETRYABLE, Aspect.WRITE_OPERATION]);
+defineAspects(InsertManyOperation, [Aspect.WRITE_OPERATION]);
diff --git a/backend/node_modules/mongodb/src/operations/is_capped.ts b/backend/node_modules/mongodb/src/operations/is_capped.ts
new file mode 100644
index 0000000..db52ec3
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/is_capped.ts
@@ -0,0 +1,35 @@
+import type { Collection } from '../collection';
+import { MongoAPIError } from '../error';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { AbstractOperation, type OperationOptions } from './operation';
+
+/** @internal */
+export class IsCappedOperation extends AbstractOperation<boolean> {
+  override options: OperationOptions;
+  collection: Collection;
+
+  constructor(collection: Collection, options: OperationOptions) {
+    super(options);
+    this.options = options;
+    this.collection = collection;
+  }
+
+  override get commandName() {
+    return 'listCollections' as const;
+  }
+
+  override async execute(server: Server, session: ClientSession | undefined): Promise<boolean> {
+    const coll = this.collection;
+    const [collection] = await coll.s.db
+      .listCollections(
+        { name: coll.collectionName },
+        { ...this.options, nameOnly: false, readPreference: this.readPreference, session }
+      )
+      .toArray();
+    if (collection == null || collection.options == null) {
+      throw new MongoAPIError(`collection ${coll.namespace} not found`);
+    }
+    return !!collection.options?.capped;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/operations/kill_cursors.ts b/backend/node_modules/mongodb/src/operations/kill_cursors.ts
new file mode 100644
index 0000000..72c6a04
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/kill_cursors.ts
@@ -0,0 +1,65 @@
+import type { Long } from '../bson';
+import { MongoRuntimeError } from '../error';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import { type MongoDBNamespace, squashError } from '../utils';
+import { AbstractOperation, Aspect, defineAspects, type OperationOptions } from './operation';
+
+/**
+ * https://www.mongodb.com/docs/manual/reference/command/killCursors/
+ * @internal
+ */
+interface KillCursorsCommand {
+  killCursors: string;
+  cursors: Long[];
+  comment?: unknown;
+}
+
+export class KillCursorsOperation extends AbstractOperation {
+  cursorId: Long;
+
+  constructor(cursorId: Long, ns: MongoDBNamespace, server: Server, options: OperationOptions) {
+    super(options);
+    this.ns = ns;
+    this.cursorId = cursorId;
+    this.server = server;
+  }
+
+  override get commandName() {
+    return 'killCursors' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<void> {
+    if (server !== this.server) {
+      throw new MongoRuntimeError('Killcursor must run on the same server operation began on');
+    }
+
+    const killCursors = this.ns.collection;
+    if (killCursors == null) {
+      // Cursors should have adopted the namespace returned by MongoDB
+      // which should always defined a collection name (even a pseudo one, ex. db.aggregate())
+      throw new MongoRuntimeError('A collection name must be determined before killCursors');
+    }
+
+    const killCursorsCommand: KillCursorsCommand = {
+      killCursors,
+      cursors: [this.cursorId]
+    };
+    try {
+      await server.command(this.ns, killCursorsCommand, {
+        session,
+        timeoutContext
+      });
+    } catch (error) {
+      // The driver should never emit errors from killCursors, this is spec-ed behavior
+      squashError(error);
+    }
+  }
+}
+
+defineAspects(KillCursorsOperation, [Aspect.MUST_SELECT_SAME_SERVER]);
diff --git a/backend/node_modules/mongodb/src/operations/list_collections.ts b/backend/node_modules/mongodb/src/operations/list_collections.ts
new file mode 100644
index 0000000..6b3296f
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/list_collections.ts
@@ -0,0 +1,112 @@
+import type { Binary, Document } from '../bson';
+import { CursorResponse } from '../cmap/wire_protocol/responses';
+import { type CursorTimeoutContext, type CursorTimeoutMode } from '../cursor/abstract_cursor';
+import type { Db } from '../db';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import { maxWireVersion } from '../utils';
+import { CommandOperation, type CommandOperationOptions } from './command';
+import { Aspect, defineAspects } from './operation';
+
+/** @public */
+export interface ListCollectionsOptions extends Omit<CommandOperationOptions, 'writeConcern'> {
+  /** Since 4.0: If true, will only return the collection name in the response, and will omit additional info */
+  nameOnly?: boolean;
+  /** Since 4.0: If true and nameOnly is true, allows a user without the required privilege (i.e. listCollections action on the database) to run the command when access control is enforced. */
+  authorizedCollections?: boolean;
+  /** The batchSize for the returned command cursor or if pre 2.8 the systems batch collection */
+  batchSize?: number;
+  /** @internal */
+  timeoutMode?: CursorTimeoutMode;
+
+  /** @internal */
+  timeoutContext?: CursorTimeoutContext;
+}
+
+/** @internal */
+export class ListCollectionsOperation extends CommandOperation<CursorResponse> {
+  /**
+   * @remarks WriteConcern can still be present on the options because
+   * we inherit options from the client/db/collection.  The
+   * key must be present on the options in order to delete it.
+   * This allows typescript to delete the key but will
+   * not allow a writeConcern to be assigned as a property on options.
+   */
+  override options: ListCollectionsOptions & { writeConcern?: never };
+  db: Db;
+  filter: Document;
+  nameOnly: boolean;
+  authorizedCollections: boolean;
+  batchSize?: number;
+
+  constructor(db: Db, filter: Document, options?: ListCollectionsOptions) {
+    super(db, options);
+
+    this.options = { ...options };
+    delete this.options.writeConcern;
+    this.db = db;
+    this.filter = filter;
+    this.nameOnly = !!this.options.nameOnly;
+    this.authorizedCollections = !!this.options.authorizedCollections;
+
+    if (typeof this.options.batchSize === 'number') {
+      this.batchSize = this.options.batchSize;
+    }
+  }
+
+  override get commandName() {
+    return 'listCollections' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<CursorResponse> {
+    return await super.executeCommand(
+      server,
+      session,
+      this.generateCommand(maxWireVersion(server)),
+      timeoutContext,
+      CursorResponse
+    );
+  }
+
+  /* This is here for the purpose of unit testing the final command that gets sent. */
+  generateCommand(wireVersion: number): Document {
+    const command: Document = {
+      listCollections: 1,
+      filter: this.filter,
+      cursor: this.batchSize ? { batchSize: this.batchSize } : {},
+      nameOnly: this.nameOnly,
+      authorizedCollections: this.authorizedCollections
+    };
+
+    // we check for undefined specifically here to allow falsy values
+    // eslint-disable-next-line no-restricted-syntax
+    if (wireVersion >= 9 && this.options.comment !== undefined) {
+      command.comment = this.options.comment;
+    }
+
+    return command;
+  }
+}
+
+/** @public */
+export interface CollectionInfo extends Document {
+  name: string;
+  type?: string;
+  options?: Document;
+  info?: {
+    readOnly?: false;
+    uuid?: Binary;
+  };
+  idIndex?: Document;
+}
+
+defineAspects(ListCollectionsOperation, [
+  Aspect.READ_OPERATION,
+  Aspect.RETRYABLE,
+  Aspect.CURSOR_CREATING
+]);
diff --git a/backend/node_modules/mongodb/src/operations/list_databases.ts b/backend/node_modules/mongodb/src/operations/list_databases.ts
new file mode 100644
index 0000000..bd740d5
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/list_databases.ts
@@ -0,0 +1,77 @@
+import type { Document } from '../bson';
+import type { Db } from '../db';
+import { type TODO_NODE_3286 } from '../mongo_types';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import { maxWireVersion, MongoDBNamespace } from '../utils';
+import { CommandOperation, type CommandOperationOptions } from './command';
+import { Aspect, defineAspects } from './operation';
+
+/** @public */
+export interface ListDatabasesResult {
+  databases: ({ name: string; sizeOnDisk?: number; empty?: boolean } & Document)[];
+  totalSize?: number;
+  totalSizeMb?: number;
+  ok: 1 | 0;
+}
+
+/** @public */
+export interface ListDatabasesOptions extends CommandOperationOptions {
+  /** A query predicate that determines which databases are listed */
+  filter?: Document;
+  /** A flag to indicate whether the command should return just the database names, or return both database names and size information */
+  nameOnly?: boolean;
+  /** A flag that determines which databases are returned based on the user privileges when access control is enabled */
+  authorizedDatabases?: boolean;
+}
+
+/** @internal */
+export class ListDatabasesOperation extends CommandOperation<ListDatabasesResult> {
+  override options: ListDatabasesOptions;
+
+  constructor(db: Db, options?: ListDatabasesOptions) {
+    super(db, options);
+    this.options = options ?? {};
+    this.ns = new MongoDBNamespace('admin', '$cmd');
+  }
+
+  override get commandName() {
+    return 'listDatabases' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<ListDatabasesResult> {
+    const cmd: Document = { listDatabases: 1 };
+
+    if (typeof this.options.nameOnly === 'boolean') {
+      cmd.nameOnly = this.options.nameOnly;
+    }
+
+    if (this.options.filter) {
+      cmd.filter = this.options.filter;
+    }
+
+    if (typeof this.options.authorizedDatabases === 'boolean') {
+      cmd.authorizedDatabases = this.options.authorizedDatabases;
+    }
+
+    // we check for undefined specifically here to allow falsy values
+    // eslint-disable-next-line no-restricted-syntax
+    if (maxWireVersion(server) >= 9 && this.options.comment !== undefined) {
+      cmd.comment = this.options.comment;
+    }
+
+    return await (super.executeCommand(
+      server,
+      session,
+      cmd,
+      timeoutContext
+    ) as Promise<TODO_NODE_3286>);
+  }
+}
+
+defineAspects(ListDatabasesOperation, [Aspect.READ_OPERATION, Aspect.RETRYABLE]);
diff --git a/backend/node_modules/mongodb/src/operations/operation.ts b/backend/node_modules/mongodb/src/operations/operation.ts
new file mode 100644
index 0000000..1c5be20
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/operation.ts
@@ -0,0 +1,144 @@
+import { type BSONSerializeOptions, type Document, resolveBSONOptions } from '../bson';
+import { ReadPreference, type ReadPreferenceLike } from '../read_preference';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import type { MongoDBNamespace } from '../utils';
+
+export const Aspect = {
+  READ_OPERATION: Symbol('READ_OPERATION'),
+  WRITE_OPERATION: Symbol('WRITE_OPERATION'),
+  RETRYABLE: Symbol('RETRYABLE'),
+  EXPLAINABLE: Symbol('EXPLAINABLE'),
+  SKIP_COLLATION: Symbol('SKIP_COLLATION'),
+  CURSOR_CREATING: Symbol('CURSOR_CREATING'),
+  MUST_SELECT_SAME_SERVER: Symbol('MUST_SELECT_SAME_SERVER'),
+  COMMAND_BATCHING: Symbol('COMMAND_BATCHING')
+} as const;
+
+/** @public */
+export type Hint = string | Document;
+
+/** @public */
+export interface OperationOptions extends BSONSerializeOptions {
+  /** Specify ClientSession for this command */
+  session?: ClientSession;
+  willRetryWrite?: boolean;
+
+  /** The preferred read preference (ReadPreference.primary, ReadPreference.primary_preferred, ReadPreference.secondary, ReadPreference.secondary_preferred, ReadPreference.nearest). */
+  readPreference?: ReadPreferenceLike;
+
+  /** @internal Hints to `executeOperation` that this operation should not unpin on an ended transaction */
+  bypassPinningCheck?: boolean;
+  omitReadPreference?: boolean;
+
+  /** @internal Hint to `executeOperation` to omit maxTimeMS */
+  omitMaxTimeMS?: boolean;
+
+  /**
+   * @experimental
+   * Specifies the time an operation will run until it throws a timeout error
+   */
+  timeoutMS?: number;
+}
+
+/** @internal */
+const kSession = Symbol('session');
+
+/**
+ * This class acts as a parent class for any operation and is responsible for setting this.options,
+ * as well as setting and getting a session.
+ * Additionally, this class implements `hasAspect`, which determines whether an operation has
+ * a specific aspect.
+ * @internal
+ */
+export abstract class AbstractOperation<TResult = any> {
+  ns!: MongoDBNamespace;
+  readPreference: ReadPreference;
+  server!: Server;
+  bypassPinningCheck: boolean;
+  trySecondaryWrite: boolean;
+
+  // BSON serialization options
+  bsonOptions?: BSONSerializeOptions;
+
+  options: OperationOptions;
+
+  /** Specifies the time an operation will run until it throws a timeout error. */
+  timeoutMS?: number;
+
+  [kSession]: ClientSession | undefined;
+
+  static aspects?: Set<symbol>;
+
+  constructor(options: OperationOptions = {}) {
+    this.readPreference = this.hasAspect(Aspect.WRITE_OPERATION)
+      ? ReadPreference.primary
+      : (ReadPreference.fromOptions(options) ?? ReadPreference.primary);
+
+    // Pull the BSON serialize options from the already-resolved options
+    this.bsonOptions = resolveBSONOptions(options);
+
+    this[kSession] = options.session != null ? options.session : undefined;
+
+    this.options = options;
+    this.bypassPinningCheck = !!options.bypassPinningCheck;
+    this.trySecondaryWrite = false;
+  }
+
+  /** Must match the first key of the command object sent to the server.
+  Command name should be stateless (should not use 'this' keyword) */
+  abstract get commandName(): string;
+
+  abstract execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<TResult>;
+
+  hasAspect(aspect: symbol): boolean {
+    const ctor = this.constructor as { aspects?: Set<symbol> };
+    if (ctor.aspects == null) {
+      return false;
+    }
+
+    return ctor.aspects.has(aspect);
+  }
+
+  get session(): ClientSession | undefined {
+    return this[kSession];
+  }
+
+  clearSession() {
+    this[kSession] = undefined;
+  }
+
+  resetBatch(): boolean {
+    return true;
+  }
+
+  get canRetryRead(): boolean {
+    return this.hasAspect(Aspect.RETRYABLE) && this.hasAspect(Aspect.READ_OPERATION);
+  }
+
+  get canRetryWrite(): boolean {
+    return this.hasAspect(Aspect.RETRYABLE) && this.hasAspect(Aspect.WRITE_OPERATION);
+  }
+}
+
+export function defineAspects(
+  operation: { aspects?: Set<symbol> },
+  aspects: symbol | symbol[] | Set<symbol>
+): Set<symbol> {
+  if (!Array.isArray(aspects) && !(aspects instanceof Set)) {
+    aspects = [aspects];
+  }
+
+  aspects = new Set(aspects);
+  Object.defineProperty(operation, 'aspects', {
+    value: aspects,
+    writable: false
+  });
+
+  return aspects;
+}
diff --git a/backend/node_modules/mongodb/src/operations/options_operation.ts b/backend/node_modules/mongodb/src/operations/options_operation.ts
new file mode 100644
index 0000000..c480fe0
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/options_operation.ts
@@ -0,0 +1,35 @@
+import type { Document } from '../bson';
+import type { Collection } from '../collection';
+import { MongoAPIError } from '../error';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { AbstractOperation, type OperationOptions } from './operation';
+
+/** @internal */
+export class OptionsOperation extends AbstractOperation<Document> {
+  override options: OperationOptions;
+  collection: Collection;
+
+  constructor(collection: Collection, options: OperationOptions) {
+    super(options);
+    this.options = options;
+    this.collection = collection;
+  }
+  override get commandName() {
+    return 'listCollections' as const;
+  }
+
+  override async execute(server: Server, session: ClientSession | undefined): Promise<Document> {
+    const coll = this.collection;
+    const [collection] = await coll.s.db
+      .listCollections(
+        { name: coll.collectionName },
+        { ...this.options, nameOnly: false, readPreference: this.readPreference, session }
+      )
+      .toArray();
+    if (collection == null || collection.options == null) {
+      throw new MongoAPIError(`collection ${coll.namespace} not found`);
+    }
+    return collection.options;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/operations/profiling_level.ts b/backend/node_modules/mongodb/src/operations/profiling_level.ts
new file mode 100644
index 0000000..7c860a2
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/profiling_level.ts
@@ -0,0 +1,40 @@
+import type { Db } from '../db';
+import { MongoUnexpectedServerResponseError } from '../error';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import { CommandOperation, type CommandOperationOptions } from './command';
+
+/** @public */
+export type ProfilingLevelOptions = CommandOperationOptions;
+
+/** @internal */
+export class ProfilingLevelOperation extends CommandOperation<string> {
+  override options: ProfilingLevelOptions;
+
+  constructor(db: Db, options: ProfilingLevelOptions) {
+    super(db, options);
+    this.options = options;
+  }
+
+  override get commandName() {
+    return 'profile' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<string> {
+    const doc = await super.executeCommand(server, session, { profile: -1 }, timeoutContext);
+    if (doc.ok === 1) {
+      const was = doc.was;
+      if (was === 0) return 'off';
+      if (was === 1) return 'slow_only';
+      if (was === 2) return 'all';
+      throw new MongoUnexpectedServerResponseError(`Illegal profiling level value ${was}`);
+    } else {
+      throw new MongoUnexpectedServerResponseError('Error with profile command');
+    }
+  }
+}
diff --git a/backend/node_modules/mongodb/src/operations/remove_user.ts b/backend/node_modules/mongodb/src/operations/remove_user.ts
new file mode 100644
index 0000000..7f484ba
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/remove_user.ts
@@ -0,0 +1,36 @@
+import type { Db } from '../db';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import { CommandOperation, type CommandOperationOptions } from './command';
+import { Aspect, defineAspects } from './operation';
+
+/** @public */
+export type RemoveUserOptions = CommandOperationOptions;
+
+/** @internal */
+export class RemoveUserOperation extends CommandOperation<boolean> {
+  override options: RemoveUserOptions;
+  username: string;
+
+  constructor(db: Db, username: string, options: RemoveUserOptions) {
+    super(db, options);
+    this.options = options;
+    this.username = username;
+  }
+
+  override get commandName() {
+    return 'dropUser' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<boolean> {
+    await super.executeCommand(server, session, { dropUser: this.username }, timeoutContext);
+    return true;
+  }
+}
+
+defineAspects(RemoveUserOperation, [Aspect.WRITE_OPERATION]);
diff --git a/backend/node_modules/mongodb/src/operations/rename.ts b/backend/node_modules/mongodb/src/operations/rename.ts
new file mode 100644
index 0000000..883be28
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/rename.ts
@@ -0,0 +1,55 @@
+import type { Document } from '../bson';
+import { Collection } from '../collection';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import { MongoDBNamespace } from '../utils';
+import { CommandOperation, type CommandOperationOptions } from './command';
+import { Aspect, defineAspects } from './operation';
+
+/** @public */
+export interface RenameOptions extends CommandOperationOptions {
+  /** Drop the target name collection if it previously exists. */
+  dropTarget?: boolean;
+  /** Unclear */
+  new_collection?: boolean;
+}
+
+/** @internal */
+export class RenameOperation extends CommandOperation<Document> {
+  constructor(
+    public collection: Collection,
+    public newName: string,
+    public override options: RenameOptions
+  ) {
+    super(collection, options);
+    this.ns = new MongoDBNamespace('admin', '$cmd');
+  }
+
+  override get commandName(): string {
+    return 'renameCollection' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<Collection> {
+    // Build the command
+    const renameCollection = this.collection.namespace;
+    const toCollection = this.collection.s.namespace.withCollection(this.newName).toString();
+    const dropTarget =
+      typeof this.options.dropTarget === 'boolean' ? this.options.dropTarget : false;
+
+    const command = {
+      renameCollection: renameCollection,
+      to: toCollection,
+      dropTarget: dropTarget
+    };
+
+    await super.executeCommand(server, session, command, timeoutContext);
+    return new Collection(this.collection.s.db, this.newName, this.collection.s.options);
+  }
+}
+
+defineAspects(RenameOperation, [Aspect.WRITE_OPERATION]);
diff --git a/backend/node_modules/mongodb/src/operations/run_command.ts b/backend/node_modules/mongodb/src/operations/run_command.ts
new file mode 100644
index 0000000..db5c5a7
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/run_command.ts
@@ -0,0 +1,94 @@
+import type { BSONSerializeOptions, Document } from '../bson';
+import { type MongoDBResponseConstructor } from '../cmap/wire_protocol/responses';
+import { type Db } from '../db';
+import { type TODO_NODE_3286 } from '../mongo_types';
+import type { ReadPreferenceLike } from '../read_preference';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import { MongoDBNamespace } from '../utils';
+import { AbstractOperation } from './operation';
+
+/** @public */
+export type RunCommandOptions = {
+  /** Specify ClientSession for this command */
+  session?: ClientSession;
+  /** The read preference */
+  readPreference?: ReadPreferenceLike;
+  /**
+   * @experimental
+   * Specifies the time an operation will run until it throws a timeout error
+   */
+  timeoutMS?: number;
+  /** @internal */
+  omitMaxTimeMS?: boolean;
+} & BSONSerializeOptions;
+
+/** @internal */
+export class RunCommandOperation<T = Document> extends AbstractOperation<T> {
+  constructor(
+    parent: Db,
+    public command: Document,
+    public override options: RunCommandOptions & { responseType?: MongoDBResponseConstructor }
+  ) {
+    super(options);
+    this.ns = parent.s.namespace.withCollection('$cmd');
+  }
+
+  override get commandName() {
+    return 'runCommand' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<T> {
+    this.server = server;
+    const res: TODO_NODE_3286 = await server.command(
+      this.ns,
+      this.command,
+      {
+        ...this.options,
+        readPreference: this.readPreference,
+        session,
+        timeoutContext
+      },
+      this.options.responseType
+    );
+
+    return res;
+  }
+}
+
+export class RunAdminCommandOperation<T = Document> extends AbstractOperation<T> {
+  constructor(
+    public command: Document,
+    public override options: RunCommandOptions & {
+      noResponse?: boolean;
+      bypassPinningCheck?: boolean;
+    }
+  ) {
+    super(options);
+    this.ns = new MongoDBNamespace('admin', '$cmd');
+  }
+
+  override get commandName() {
+    return 'runCommand' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<T> {
+    this.server = server;
+    const res: TODO_NODE_3286 = await server.command(this.ns, this.command, {
+      ...this.options,
+      readPreference: this.readPreference,
+      session,
+      timeoutContext
+    });
+    return res;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/operations/search_indexes/create.ts b/backend/node_modules/mongodb/src/operations/search_indexes/create.ts
new file mode 100644
index 0000000..2870868
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/search_indexes/create.ts
@@ -0,0 +1,54 @@
+import type { Document } from '../../bson';
+import type { Collection } from '../../collection';
+import type { Server } from '../../sdam/server';
+import type { ClientSession } from '../../sessions';
+import { type TimeoutContext } from '../../timeout';
+import { AbstractOperation } from '../operation';
+
+/**
+ * @public
+ */
+export interface SearchIndexDescription extends Document {
+  /** The name of the index. */
+  name?: string;
+
+  /** The index definition. */
+  definition: Document;
+
+  /** The type of the index.  Currently `search` or `vectorSearch` are supported. */
+  type?: string;
+}
+
+/** @internal */
+export class CreateSearchIndexesOperation extends AbstractOperation<string[]> {
+  constructor(
+    private readonly collection: Collection,
+    private readonly descriptions: ReadonlyArray<SearchIndexDescription>
+  ) {
+    super();
+  }
+
+  override get commandName() {
+    return 'createSearchIndexes' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<string[]> {
+    const namespace = this.collection.fullNamespace;
+    const command = {
+      createSearchIndexes: namespace.collection,
+      indexes: this.descriptions
+    };
+
+    const res = await server.command(namespace, command, {
+      session,
+      timeoutContext
+    });
+
+    const indexesCreated: Array<{ name: string }> = res?.indexesCreated ?? [];
+    return indexesCreated.map(({ name }) => name);
+  }
+}
diff --git a/backend/node_modules/mongodb/src/operations/search_indexes/drop.ts b/backend/node_modules/mongodb/src/operations/search_indexes/drop.ts
new file mode 100644
index 0000000..28870d3
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/search_indexes/drop.ts
@@ -0,0 +1,47 @@
+import type { Document } from '../../bson';
+import type { Collection } from '../../collection';
+import { MONGODB_ERROR_CODES, MongoServerError } from '../../error';
+import type { Server } from '../../sdam/server';
+import type { ClientSession } from '../../sessions';
+import { type TimeoutContext } from '../../timeout';
+import { AbstractOperation } from '../operation';
+
+/** @internal */
+export class DropSearchIndexOperation extends AbstractOperation<void> {
+  constructor(
+    private readonly collection: Collection,
+    private readonly name: string
+  ) {
+    super();
+  }
+
+  override get commandName() {
+    return 'dropSearchIndex' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<void> {
+    const namespace = this.collection.fullNamespace;
+
+    const command: Document = {
+      dropSearchIndex: namespace.collection
+    };
+
+    if (typeof this.name === 'string') {
+      command.name = this.name;
+    }
+
+    try {
+      await server.command(namespace, command, { session, timeoutContext });
+    } catch (error) {
+      const isNamespaceNotFoundError =
+        error instanceof MongoServerError && error.code === MONGODB_ERROR_CODES.NamespaceNotFound;
+      if (!isNamespaceNotFoundError) {
+        throw error;
+      }
+    }
+  }
+}
diff --git a/backend/node_modules/mongodb/src/operations/search_indexes/update.ts b/backend/node_modules/mongodb/src/operations/search_indexes/update.ts
new file mode 100644
index 0000000..e8701d2
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/search_indexes/update.ts
@@ -0,0 +1,37 @@
+import type { Document } from '../../bson';
+import type { Collection } from '../../collection';
+import type { Server } from '../../sdam/server';
+import type { ClientSession } from '../../sessions';
+import { type TimeoutContext } from '../../timeout';
+import { AbstractOperation } from '../operation';
+
+/** @internal */
+export class UpdateSearchIndexOperation extends AbstractOperation<void> {
+  constructor(
+    private readonly collection: Collection,
+    private readonly name: string,
+    private readonly definition: Document
+  ) {
+    super();
+  }
+
+  override get commandName() {
+    return 'updateSearchIndex' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<void> {
+    const namespace = this.collection.fullNamespace;
+    const command = {
+      updateSearchIndex: namespace.collection,
+      name: this.name,
+      definition: this.definition
+    };
+
+    await server.command(namespace, command, { session, timeoutContext });
+    return;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/operations/set_profiling_level.ts b/backend/node_modules/mongodb/src/operations/set_profiling_level.ts
new file mode 100644
index 0000000..d76473f
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/set_profiling_level.ts
@@ -0,0 +1,72 @@
+import type { Db } from '../db';
+import { MongoInvalidArgumentError } from '../error';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import { enumToString } from '../utils';
+import { CommandOperation, type CommandOperationOptions } from './command';
+
+const levelValues = new Set(['off', 'slow_only', 'all']);
+
+/** @public */
+export const ProfilingLevel = Object.freeze({
+  off: 'off',
+  slowOnly: 'slow_only',
+  all: 'all'
+} as const);
+
+/** @public */
+export type ProfilingLevel = (typeof ProfilingLevel)[keyof typeof ProfilingLevel];
+
+/** @public */
+export type SetProfilingLevelOptions = CommandOperationOptions;
+
+/** @internal */
+export class SetProfilingLevelOperation extends CommandOperation<ProfilingLevel> {
+  override options: SetProfilingLevelOptions;
+  level: ProfilingLevel;
+  profile: 0 | 1 | 2;
+
+  constructor(db: Db, level: ProfilingLevel, options: SetProfilingLevelOptions) {
+    super(db, options);
+    this.options = options;
+    switch (level) {
+      case ProfilingLevel.off:
+        this.profile = 0;
+        break;
+      case ProfilingLevel.slowOnly:
+        this.profile = 1;
+        break;
+      case ProfilingLevel.all:
+        this.profile = 2;
+        break;
+      default:
+        this.profile = 0;
+        break;
+    }
+
+    this.level = level;
+  }
+
+  override get commandName() {
+    return 'profile' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<ProfilingLevel> {
+    const level = this.level;
+
+    if (!levelValues.has(level)) {
+      throw new MongoInvalidArgumentError(
+        `Profiling level must be one of "${enumToString(ProfilingLevel)}"`
+      );
+    }
+
+    // TODO(NODE-3483): Determine error to put here
+    await super.executeCommand(server, session, { profile: this.profile }, timeoutContext);
+    return level;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/operations/stats.ts b/backend/node_modules/mongodb/src/operations/stats.ts
new file mode 100644
index 0000000..aafd3bf
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/stats.ts
@@ -0,0 +1,42 @@
+import type { Document } from '../bson';
+import type { Db } from '../db';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import { CommandOperation, type CommandOperationOptions } from './command';
+import { Aspect, defineAspects } from './operation';
+
+/** @public */
+export interface DbStatsOptions extends CommandOperationOptions {
+  /** Divide the returned sizes by scale value. */
+  scale?: number;
+}
+
+/** @internal */
+export class DbStatsOperation extends CommandOperation<Document> {
+  override options: DbStatsOptions;
+
+  constructor(db: Db, options: DbStatsOptions) {
+    super(db, options);
+    this.options = options;
+  }
+
+  override get commandName() {
+    return 'dbStats' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<Document> {
+    const command: Document = { dbStats: true };
+    if (this.options.scale != null) {
+      command.scale = this.options.scale;
+    }
+
+    return await super.executeCommand(server, session, command, timeoutContext);
+  }
+}
+
+defineAspects(DbStatsOperation, [Aspect.READ_OPERATION]);
diff --git a/backend/node_modules/mongodb/src/operations/update.ts b/backend/node_modules/mongodb/src/operations/update.ts
new file mode 100644
index 0000000..5b6f396
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/update.ts
@@ -0,0 +1,312 @@
+import type { Document } from '../bson';
+import type { Collection } from '../collection';
+import { MongoCompatibilityError, MongoInvalidArgumentError, MongoServerError } from '../error';
+import type { InferIdType, TODO_NODE_3286 } from '../mongo_types';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import { hasAtomicOperators, type MongoDBNamespace } from '../utils';
+import { type CollationOptions, CommandOperation, type CommandOperationOptions } from './command';
+import { Aspect, defineAspects, type Hint } from './operation';
+
+/** @public */
+export interface UpdateOptions extends CommandOperationOptions {
+  /** A set of filters specifying to which array elements an update should apply */
+  arrayFilters?: Document[];
+  /** If true, allows the write to opt-out of document level validation */
+  bypassDocumentValidation?: boolean;
+  /** Specifies a collation */
+  collation?: CollationOptions;
+  /** Specify that the update query should only consider plans using the hinted index */
+  hint?: Hint;
+  /** When true, creates a new document if no document matches the query */
+  upsert?: boolean;
+  /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+  let?: Document;
+}
+
+/**
+ * @public
+ * `TSchema` is the schema of the collection
+ */
+export interface UpdateResult<TSchema extends Document = Document> {
+  /** Indicates whether this write result was acknowledged. If not, then all other members of this result will be undefined */
+  acknowledged: boolean;
+  /** The number of documents that matched the filter */
+  matchedCount: number;
+  /** The number of documents that were modified */
+  modifiedCount: number;
+  /** The number of documents that were upserted */
+  upsertedCount: number;
+  /** The identifier of the inserted document if an upsert took place */
+  upsertedId: InferIdType<TSchema> | null;
+}
+
+/** @public */
+export interface UpdateStatement {
+  /** The query that matches documents to update. */
+  q: Document;
+  /** The modifications to apply. */
+  u: Document | Document[];
+  /**  If true, perform an insert if no documents match the query. */
+  upsert?: boolean;
+  /** If true, updates all documents that meet the query criteria. */
+  multi?: boolean;
+  /** Specifies the collation to use for the operation. */
+  collation?: CollationOptions;
+  /** An array of filter documents that determines which array elements to modify for an update operation on an array field. */
+  arrayFilters?: Document[];
+  /** A document or string that specifies the index to use to support the query predicate. */
+  hint?: Hint;
+}
+
+/**
+ * @internal
+ * UpdateOperation is used in bulk write, while UpdateOneOperation and UpdateManyOperation are only used in the collections API
+ */
+export class UpdateOperation extends CommandOperation<Document> {
+  override options: UpdateOptions & { ordered?: boolean };
+  statements: UpdateStatement[];
+
+  constructor(
+    ns: MongoDBNamespace,
+    statements: UpdateStatement[],
+    options: UpdateOptions & { ordered?: boolean }
+  ) {
+    super(undefined, options);
+    this.options = options;
+    this.ns = ns;
+
+    this.statements = statements;
+  }
+
+  override get commandName() {
+    return 'update' as const;
+  }
+
+  override get canRetryWrite(): boolean {
+    if (super.canRetryWrite === false) {
+      return false;
+    }
+
+    return this.statements.every(op => op.multi == null || op.multi === false);
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<Document> {
+    const options = this.options ?? {};
+    const ordered = typeof options.ordered === 'boolean' ? options.ordered : true;
+    const command: Document = {
+      update: this.ns.collection,
+      updates: this.statements,
+      ordered
+    };
+
+    if (typeof options.bypassDocumentValidation === 'boolean') {
+      command.bypassDocumentValidation = options.bypassDocumentValidation;
+    }
+
+    if (options.let) {
+      command.let = options.let;
+    }
+
+    // we check for undefined specifically here to allow falsy values
+    // eslint-disable-next-line no-restricted-syntax
+    if (options.comment !== undefined) {
+      command.comment = options.comment;
+    }
+
+    const unacknowledgedWrite = this.writeConcern && this.writeConcern.w === 0;
+    if (unacknowledgedWrite) {
+      if (this.statements.find((o: Document) => o.hint)) {
+        // TODO(NODE-3541): fix error for hint with unacknowledged writes
+        throw new MongoCompatibilityError(`hint is not supported with unacknowledged writes`);
+      }
+    }
+
+    const res = await super.executeCommand(server, session, command, timeoutContext);
+    return res;
+  }
+}
+
+/** @internal */
+export class UpdateOneOperation extends UpdateOperation {
+  constructor(collection: Collection, filter: Document, update: Document, options: UpdateOptions) {
+    super(
+      collection.s.namespace,
+      [makeUpdateStatement(filter, update, { ...options, multi: false })],
+      options
+    );
+
+    if (!hasAtomicOperators(update)) {
+      throw new MongoInvalidArgumentError('Update document requires atomic operators');
+    }
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<UpdateResult> {
+    const res: TODO_NODE_3286 = await super.execute(server, session, timeoutContext);
+    if (this.explain != null) return res;
+    if (res.code) throw new MongoServerError(res);
+    if (res.writeErrors) throw new MongoServerError(res.writeErrors[0]);
+
+    return {
+      acknowledged: this.writeConcern?.w !== 0,
+      modifiedCount: res.nModified ?? res.n,
+      upsertedId:
+        Array.isArray(res.upserted) && res.upserted.length > 0 ? res.upserted[0]._id : null,
+      upsertedCount: Array.isArray(res.upserted) && res.upserted.length ? res.upserted.length : 0,
+      matchedCount: Array.isArray(res.upserted) && res.upserted.length > 0 ? 0 : res.n
+    };
+  }
+}
+
+/** @internal */
+export class UpdateManyOperation extends UpdateOperation {
+  constructor(collection: Collection, filter: Document, update: Document, options: UpdateOptions) {
+    super(
+      collection.s.namespace,
+      [makeUpdateStatement(filter, update, { ...options, multi: true })],
+      options
+    );
+
+    if (!hasAtomicOperators(update)) {
+      throw new MongoInvalidArgumentError('Update document requires atomic operators');
+    }
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<UpdateResult> {
+    const res: TODO_NODE_3286 = await super.execute(server, session, timeoutContext);
+    if (this.explain != null) return res;
+    if (res.code) throw new MongoServerError(res);
+    if (res.writeErrors) throw new MongoServerError(res.writeErrors[0]);
+
+    return {
+      acknowledged: this.writeConcern?.w !== 0,
+      modifiedCount: res.nModified ?? res.n,
+      upsertedId:
+        Array.isArray(res.upserted) && res.upserted.length > 0 ? res.upserted[0]._id : null,
+      upsertedCount: Array.isArray(res.upserted) && res.upserted.length ? res.upserted.length : 0,
+      matchedCount: Array.isArray(res.upserted) && res.upserted.length > 0 ? 0 : res.n
+    };
+  }
+}
+
+/** @public */
+export interface ReplaceOptions extends CommandOperationOptions {
+  /** If true, allows the write to opt-out of document level validation */
+  bypassDocumentValidation?: boolean;
+  /** Specifies a collation */
+  collation?: CollationOptions;
+  /** Specify that the update query should only consider plans using the hinted index */
+  hint?: string | Document;
+  /** When true, creates a new document if no document matches the query */
+  upsert?: boolean;
+  /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */
+  let?: Document;
+}
+
+/** @internal */
+export class ReplaceOneOperation extends UpdateOperation {
+  constructor(
+    collection: Collection,
+    filter: Document,
+    replacement: Document,
+    options: ReplaceOptions
+  ) {
+    super(
+      collection.s.namespace,
+      [makeUpdateStatement(filter, replacement, { ...options, multi: false })],
+      options
+    );
+
+    if (hasAtomicOperators(replacement)) {
+      throw new MongoInvalidArgumentError('Replacement document must not contain atomic operators');
+    }
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<UpdateResult> {
+    const res: TODO_NODE_3286 = await super.execute(server, session, timeoutContext);
+    if (this.explain != null) return res;
+    if (res.code) throw new MongoServerError(res);
+    if (res.writeErrors) throw new MongoServerError(res.writeErrors[0]);
+
+    return {
+      acknowledged: this.writeConcern?.w !== 0,
+      modifiedCount: res.nModified ?? res.n,
+      upsertedId:
+        Array.isArray(res.upserted) && res.upserted.length > 0 ? res.upserted[0]._id : null,
+      upsertedCount: Array.isArray(res.upserted) && res.upserted.length ? res.upserted.length : 0,
+      matchedCount: Array.isArray(res.upserted) && res.upserted.length > 0 ? 0 : res.n
+    };
+  }
+}
+
+export function makeUpdateStatement(
+  filter: Document,
+  update: Document | Document[],
+  options: UpdateOptions & { multi?: boolean }
+): UpdateStatement {
+  if (filter == null || typeof filter !== 'object') {
+    throw new MongoInvalidArgumentError('Selector must be a valid JavaScript object');
+  }
+
+  if (update == null || typeof update !== 'object') {
+    throw new MongoInvalidArgumentError('Document must be a valid JavaScript object');
+  }
+
+  const op: UpdateStatement = { q: filter, u: update };
+  if (typeof options.upsert === 'boolean') {
+    op.upsert = options.upsert;
+  }
+
+  if (options.multi) {
+    op.multi = options.multi;
+  }
+
+  if (options.hint) {
+    op.hint = options.hint;
+  }
+
+  if (options.arrayFilters) {
+    op.arrayFilters = options.arrayFilters;
+  }
+
+  if (options.collation) {
+    op.collation = options.collation;
+  }
+
+  return op;
+}
+
+defineAspects(UpdateOperation, [Aspect.RETRYABLE, Aspect.WRITE_OPERATION, Aspect.SKIP_COLLATION]);
+defineAspects(UpdateOneOperation, [
+  Aspect.RETRYABLE,
+  Aspect.WRITE_OPERATION,
+  Aspect.EXPLAINABLE,
+  Aspect.SKIP_COLLATION
+]);
+defineAspects(UpdateManyOperation, [
+  Aspect.WRITE_OPERATION,
+  Aspect.EXPLAINABLE,
+  Aspect.SKIP_COLLATION
+]);
+defineAspects(ReplaceOneOperation, [
+  Aspect.RETRYABLE,
+  Aspect.WRITE_OPERATION,
+  Aspect.SKIP_COLLATION
+]);
diff --git a/backend/node_modules/mongodb/src/operations/validate_collection.ts b/backend/node_modules/mongodb/src/operations/validate_collection.ts
new file mode 100644
index 0000000..16ae4ca
--- /dev/null
+++ b/backend/node_modules/mongodb/src/operations/validate_collection.ts
@@ -0,0 +1,58 @@
+import type { Admin } from '../admin';
+import type { Document } from '../bson';
+import { MongoUnexpectedServerResponseError } from '../error';
+import type { Server } from '../sdam/server';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import { CommandOperation, type CommandOperationOptions } from './command';
+
+/** @public */
+export interface ValidateCollectionOptions extends CommandOperationOptions {
+  /** Validates a collection in the background, without interrupting read or write traffic (only in MongoDB 4.4+) */
+  background?: boolean;
+}
+
+/** @internal */
+export class ValidateCollectionOperation extends CommandOperation<Document> {
+  override options: ValidateCollectionOptions;
+  collectionName: string;
+  command: Document;
+
+  constructor(admin: Admin, collectionName: string, options: ValidateCollectionOptions) {
+    // Decorate command with extra options
+    const command: Document = { validate: collectionName };
+    const keys = Object.keys(options);
+    for (let i = 0; i < keys.length; i++) {
+      if (Object.prototype.hasOwnProperty.call(options, keys[i]) && keys[i] !== 'session') {
+        command[keys[i]] = (options as Document)[keys[i]];
+      }
+    }
+
+    super(admin.s.db, options);
+    this.options = options;
+    this.command = command;
+    this.collectionName = collectionName;
+  }
+
+  override get commandName() {
+    return 'validate' as const;
+  }
+
+  override async execute(
+    server: Server,
+    session: ClientSession | undefined,
+    timeoutContext: TimeoutContext
+  ): Promise<Document> {
+    const collectionName = this.collectionName;
+
+    const doc = await super.executeCommand(server, session, this.command, timeoutContext);
+    if (doc.result != null && typeof doc.result !== 'string')
+      throw new MongoUnexpectedServerResponseError('Error with validation data');
+    if (doc.result != null && doc.result.match(/exception|corrupt/) != null)
+      throw new MongoUnexpectedServerResponseError(`Invalid collection ${collectionName}`);
+    if (doc.valid != null && !doc.valid)
+      throw new MongoUnexpectedServerResponseError(`Invalid collection ${collectionName}`);
+
+    return doc;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/read_concern.ts b/backend/node_modules/mongodb/src/read_concern.ts
new file mode 100644
index 0000000..1118c37
--- /dev/null
+++ b/backend/node_modules/mongodb/src/read_concern.ts
@@ -0,0 +1,88 @@
+import type { Document } from './bson';
+
+/** @public */
+export const ReadConcernLevel = Object.freeze({
+  local: 'local',
+  majority: 'majority',
+  linearizable: 'linearizable',
+  available: 'available',
+  snapshot: 'snapshot'
+} as const);
+
+/** @public */
+export type ReadConcernLevel = (typeof ReadConcernLevel)[keyof typeof ReadConcernLevel];
+
+/** @public */
+export type ReadConcernLike = ReadConcern | { level: ReadConcernLevel } | ReadConcernLevel;
+
+/**
+ * The MongoDB ReadConcern, which allows for control of the consistency and isolation properties
+ * of the data read from replica sets and replica set shards.
+ * @public
+ *
+ * @see https://www.mongodb.com/docs/manual/reference/read-concern/index.html
+ */
+export class ReadConcern {
+  level: ReadConcernLevel | string;
+
+  /** Constructs a ReadConcern from the read concern level.*/
+  constructor(level: ReadConcernLevel) {
+    /**
+     * A spec test exists that allows level to be any string.
+     * "invalid readConcern with out stage"
+     * @see ./test/spec/crud/v2/aggregate-out-readConcern.json
+     * @see https://github.com/mongodb/specifications/blob/master/source/read-write-concern/read-write-concern.md#unknown-levels-and-additional-options-for-string-based-readconcerns
+     */
+    this.level = ReadConcernLevel[level] ?? level;
+  }
+
+  /**
+   * Construct a ReadConcern given an options object.
+   *
+   * @param options - The options object from which to extract the write concern.
+   */
+  static fromOptions(options?: {
+    readConcern?: ReadConcernLike;
+    level?: ReadConcernLevel;
+  }): ReadConcern | undefined {
+    if (options == null) {
+      return;
+    }
+
+    if (options.readConcern) {
+      const { readConcern } = options;
+      if (readConcern instanceof ReadConcern) {
+        return readConcern;
+      } else if (typeof readConcern === 'string') {
+        return new ReadConcern(readConcern);
+      } else if ('level' in readConcern && readConcern.level) {
+        return new ReadConcern(readConcern.level);
+      }
+    }
+
+    if (options.level) {
+      return new ReadConcern(options.level);
+    }
+    return;
+  }
+
+  static get MAJORITY(): 'majority' {
+    return ReadConcernLevel.majority;
+  }
+
+  static get AVAILABLE(): 'available' {
+    return ReadConcernLevel.available;
+  }
+
+  static get LINEARIZABLE(): 'linearizable' {
+    return ReadConcernLevel.linearizable;
+  }
+
+  static get SNAPSHOT(): 'snapshot' {
+    return ReadConcernLevel.snapshot;
+  }
+
+  toJSON(): Document {
+    return { level: this.level };
+  }
+}
diff --git a/backend/node_modules/mongodb/src/read_preference.ts b/backend/node_modules/mongodb/src/read_preference.ts
new file mode 100644
index 0000000..cef52ad
--- /dev/null
+++ b/backend/node_modules/mongodb/src/read_preference.ts
@@ -0,0 +1,262 @@
+import type { Document } from './bson';
+import { MongoInvalidArgumentError } from './error';
+import type { TagSet } from './sdam/server_description';
+import type { ClientSession } from './sessions';
+
+/** @public */
+export type ReadPreferenceLike = ReadPreference | ReadPreferenceMode;
+
+/** @public */
+export const ReadPreferenceMode = Object.freeze({
+  primary: 'primary',
+  primaryPreferred: 'primaryPreferred',
+  secondary: 'secondary',
+  secondaryPreferred: 'secondaryPreferred',
+  nearest: 'nearest'
+} as const);
+
+/** @public */
+export type ReadPreferenceMode = (typeof ReadPreferenceMode)[keyof typeof ReadPreferenceMode];
+
+/** @public */
+export interface HedgeOptions {
+  /** Explicitly enable or disable hedged reads. */
+  enabled?: boolean;
+}
+
+/** @public */
+export interface ReadPreferenceOptions {
+  /** Max secondary read staleness in seconds, Minimum value is 90 seconds.*/
+  maxStalenessSeconds?: number;
+  /** Server mode in which the same query is dispatched in parallel to multiple replica set members. */
+  hedge?: HedgeOptions;
+}
+
+/** @public */
+export interface ReadPreferenceLikeOptions extends ReadPreferenceOptions {
+  readPreference?:
+    | ReadPreferenceLike
+    | {
+        mode?: ReadPreferenceMode;
+        preference?: ReadPreferenceMode;
+        tags?: TagSet[];
+        maxStalenessSeconds?: number;
+      };
+}
+
+/** @public */
+export interface ReadPreferenceFromOptions extends ReadPreferenceLikeOptions {
+  session?: ClientSession;
+  readPreferenceTags?: TagSet[];
+  hedge?: HedgeOptions;
+}
+
+/**
+ * The **ReadPreference** class is a class that represents a MongoDB ReadPreference and is
+ * used to construct connections.
+ * @public
+ *
+ * @see https://www.mongodb.com/docs/manual/core/read-preference/
+ */
+export class ReadPreference {
+  mode: ReadPreferenceMode;
+  tags?: TagSet[];
+  hedge?: HedgeOptions;
+  maxStalenessSeconds?: number;
+  minWireVersion?: number;
+
+  public static PRIMARY = ReadPreferenceMode.primary;
+  public static PRIMARY_PREFERRED = ReadPreferenceMode.primaryPreferred;
+  public static SECONDARY = ReadPreferenceMode.secondary;
+  public static SECONDARY_PREFERRED = ReadPreferenceMode.secondaryPreferred;
+  public static NEAREST = ReadPreferenceMode.nearest;
+
+  public static primary = new ReadPreference(ReadPreferenceMode.primary);
+  public static primaryPreferred = new ReadPreference(ReadPreferenceMode.primaryPreferred);
+  public static secondary = new ReadPreference(ReadPreferenceMode.secondary);
+  public static secondaryPreferred = new ReadPreference(ReadPreferenceMode.secondaryPreferred);
+  public static nearest = new ReadPreference(ReadPreferenceMode.nearest);
+
+  /**
+   * @param mode - A string describing the read preference mode (primary|primaryPreferred|secondary|secondaryPreferred|nearest)
+   * @param tags - A tag set used to target reads to members with the specified tag(s). tagSet is not available if using read preference mode primary.
+   * @param options - Additional read preference options
+   */
+  constructor(mode: ReadPreferenceMode, tags?: TagSet[], options?: ReadPreferenceOptions) {
+    if (!ReadPreference.isValid(mode)) {
+      throw new MongoInvalidArgumentError(`Invalid read preference mode ${JSON.stringify(mode)}`);
+    }
+    if (options == null && typeof tags === 'object' && !Array.isArray(tags)) {
+      options = tags;
+      tags = undefined;
+    } else if (tags && !Array.isArray(tags)) {
+      throw new MongoInvalidArgumentError('ReadPreference tags must be an array');
+    }
+
+    this.mode = mode;
+    this.tags = tags;
+    this.hedge = options?.hedge;
+    this.maxStalenessSeconds = undefined;
+    this.minWireVersion = undefined;
+
+    options = options ?? {};
+    if (options.maxStalenessSeconds != null) {
+      if (options.maxStalenessSeconds <= 0) {
+        throw new MongoInvalidArgumentError('maxStalenessSeconds must be a positive integer');
+      }
+
+      this.maxStalenessSeconds = options.maxStalenessSeconds;
+
+      // NOTE: The minimum required wire version is 5 for this read preference. If the existing
+      //       topology has a lower value then a MongoError will be thrown during server selection.
+      this.minWireVersion = 5;
+    }
+
+    if (this.mode === ReadPreference.PRIMARY) {
+      if (this.tags && Array.isArray(this.tags) && this.tags.length > 0) {
+        throw new MongoInvalidArgumentError('Primary read preference cannot be combined with tags');
+      }
+
+      if (this.maxStalenessSeconds) {
+        throw new MongoInvalidArgumentError(
+          'Primary read preference cannot be combined with maxStalenessSeconds'
+        );
+      }
+
+      if (this.hedge) {
+        throw new MongoInvalidArgumentError(
+          'Primary read preference cannot be combined with hedge'
+        );
+      }
+    }
+  }
+
+  // Support the deprecated `preference` property introduced in the porcelain layer
+  get preference(): ReadPreferenceMode {
+    return this.mode;
+  }
+
+  static fromString(mode: string): ReadPreference {
+    return new ReadPreference(mode as ReadPreferenceMode);
+  }
+
+  /**
+   * Construct a ReadPreference given an options object.
+   *
+   * @param options - The options object from which to extract the read preference.
+   */
+  static fromOptions(options?: ReadPreferenceFromOptions): ReadPreference | undefined {
+    if (!options) return;
+    const readPreference =
+      options.readPreference ?? options.session?.transaction.options.readPreference;
+    const readPreferenceTags = options.readPreferenceTags;
+
+    if (readPreference == null) {
+      return;
+    }
+
+    if (typeof readPreference === 'string') {
+      return new ReadPreference(readPreference, readPreferenceTags, {
+        maxStalenessSeconds: options.maxStalenessSeconds,
+        hedge: options.hedge
+      });
+    } else if (!(readPreference instanceof ReadPreference) && typeof readPreference === 'object') {
+      const mode = readPreference.mode || readPreference.preference;
+      if (mode && typeof mode === 'string') {
+        return new ReadPreference(mode, readPreference.tags ?? readPreferenceTags, {
+          maxStalenessSeconds: readPreference.maxStalenessSeconds,
+          hedge: options.hedge
+        });
+      }
+    }
+
+    if (readPreferenceTags) {
+      readPreference.tags = readPreferenceTags;
+    }
+
+    return readPreference as ReadPreference;
+  }
+
+  /**
+   * Replaces options.readPreference with a ReadPreference instance
+   */
+  static translate(options: ReadPreferenceLikeOptions): ReadPreferenceLikeOptions {
+    if (options.readPreference == null) return options;
+    const r = options.readPreference;
+
+    if (typeof r === 'string') {
+      options.readPreference = new ReadPreference(r);
+    } else if (r && !(r instanceof ReadPreference) && typeof r === 'object') {
+      const mode = r.mode || r.preference;
+      if (mode && typeof mode === 'string') {
+        options.readPreference = new ReadPreference(mode, r.tags, {
+          maxStalenessSeconds: r.maxStalenessSeconds
+        });
+      }
+    } else if (!(r instanceof ReadPreference)) {
+      throw new MongoInvalidArgumentError(`Invalid read preference: ${r}`);
+    }
+
+    return options;
+  }
+
+  /**
+   * Validate if a mode is legal
+   *
+   * @param mode - The string representing the read preference mode.
+   */
+  static isValid(mode: string): boolean {
+    const VALID_MODES = new Set([
+      ReadPreference.PRIMARY,
+      ReadPreference.PRIMARY_PREFERRED,
+      ReadPreference.SECONDARY,
+      ReadPreference.SECONDARY_PREFERRED,
+      ReadPreference.NEAREST,
+      null
+    ]);
+
+    return VALID_MODES.has(mode as ReadPreferenceMode);
+  }
+
+  /**
+   * Validate if a mode is legal
+   *
+   * @param mode - The string representing the read preference mode.
+   */
+  isValid(mode?: string): boolean {
+    return ReadPreference.isValid(typeof mode === 'string' ? mode : this.mode);
+  }
+
+  /**
+   * Indicates that this readPreference needs the "SecondaryOk" bit when sent over the wire
+   * @see https://www.mongodb.com/docs/manual/reference/mongodb-wire-protocol/#op-query
+   */
+  secondaryOk(): boolean {
+    const NEEDS_SECONDARYOK = new Set<string>([
+      ReadPreference.PRIMARY_PREFERRED,
+      ReadPreference.SECONDARY,
+      ReadPreference.SECONDARY_PREFERRED,
+      ReadPreference.NEAREST
+    ]);
+
+    return NEEDS_SECONDARYOK.has(this.mode);
+  }
+
+  /**
+   * Check if the two ReadPreferences are equivalent
+   *
+   * @param readPreference - The read preference with which to check equality
+   */
+  equals(readPreference: ReadPreference): boolean {
+    return readPreference.mode === this.mode;
+  }
+
+  /** Return JSON representation */
+  toJSON(): Document {
+    const readPreference = { mode: this.mode } as Document;
+    if (Array.isArray(this.tags)) readPreference.tags = this.tags;
+    if (this.maxStalenessSeconds) readPreference.maxStalenessSeconds = this.maxStalenessSeconds;
+    if (this.hedge) readPreference.hedge = this.hedge;
+    return readPreference;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/resource_management.ts b/backend/node_modules/mongodb/src/resource_management.ts
new file mode 100644
index 0000000..461f499
--- /dev/null
+++ b/backend/node_modules/mongodb/src/resource_management.ts
@@ -0,0 +1,74 @@
+/**
+ * @public
+ */
+export interface AsyncDisposable {
+  /**
+   * @beta
+   * @experimental
+   */
+  [Symbol.asyncDispose](): Promise<void>;
+
+  /**
+   * @internal
+   *
+   * A method that wraps disposal semantics for a given resource in the class.
+   */
+  asyncDispose(): Promise<void>;
+}
+
+/** @internal */
+export function configureResourceManagement(target: AsyncDisposable) {
+  Symbol.asyncDispose &&
+    Object.defineProperty(target, Symbol.asyncDispose, {
+      value: async function asyncDispose(this: AsyncDisposable) {
+        await this.asyncDispose();
+      },
+      enumerable: false,
+      configurable: true,
+      writable: true
+    });
+}
+
+/**
+ * @beta
+ * @experimental
+ *
+ * Attaches `Symbol.asyncDispose` methods to the MongoClient, Cursors, sessions and change streams
+ * if Symbol.asyncDispose is defined.
+ *
+ * It's usually not necessary to call this method - the driver attempts to attach these methods
+ * itself when its loaded.  However, sometimes the driver may be loaded before `Symbol.asyncDispose`
+ * is defined, in which case it is necessary to call this method directly.  This can happen if the
+ * application is polyfilling `Symbol.asyncDispose`.
+ *
+ * Example:
+ *
+ * ```typescript
+ * import { configureExplicitResourceManagement, MongoClient } from 'mongodb/lib/beta';
+ *
+ * Symbol.asyncDispose ??= Symbol('dispose');
+ * load();
+ *
+ * await using client = new MongoClient(...);
+ * ```
+ */
+export function configureExplicitResourceManagement() {
+  // We must import lazily here, because there's a circular dependency between the resource management
+  // file and each resources' file.  We could move `configureResourceManagement` to a separate
+  // function, but keeping all resource-management related code together seemed preferable and I chose
+  // lazy requiring of resources instead.
+
+  // eslint-disable-next-line @typescript-eslint/no-require-imports
+  const { MongoClient } = require('./mongo_client');
+  // eslint-disable-next-line @typescript-eslint/no-require-imports
+  const { ClientSession } = require('./sessions');
+  // eslint-disable-next-line @typescript-eslint/no-require-imports
+  const { AbstractCursor } = require('./cursor/abstract_cursor');
+  // eslint-disable-next-line @typescript-eslint/no-require-imports
+  const { ChangeStream } = require('./change_stream');
+
+  configureResourceManagement(MongoClient.prototype);
+  configureResourceManagement(ClientSession.prototype);
+  configureResourceManagement(AbstractCursor.prototype);
+  configureResourceManagement(ChangeStream.prototype);
+}
diff --git a/backend/node_modules/mongodb/src/sdam/common.ts b/backend/node_modules/mongodb/src/sdam/common.ts
new file mode 100644
index 0000000..9741148
--- /dev/null
+++ b/backend/node_modules/mongodb/src/sdam/common.ts
@@ -0,0 +1,74 @@
+import type { Binary, Long, Timestamp } from '../bson';
+import type { ClientSession } from '../sessions';
+import type { Topology } from './topology';
+
+// shared state names
+export const STATE_CLOSING = 'closing';
+export const STATE_CLOSED = 'closed';
+export const STATE_CONNECTING = 'connecting';
+export const STATE_CONNECTED = 'connected';
+
+/**
+ * An enumeration of topology types we know about
+ * @public
+ */
+export const TopologyType = Object.freeze({
+  Single: 'Single',
+  ReplicaSetNoPrimary: 'ReplicaSetNoPrimary',
+  ReplicaSetWithPrimary: 'ReplicaSetWithPrimary',
+  Sharded: 'Sharded',
+  Unknown: 'Unknown',
+  LoadBalanced: 'LoadBalanced'
+} as const);
+
+/** @public */
+export type TopologyType = (typeof TopologyType)[keyof typeof TopologyType];
+
+/**
+ * An enumeration of server types we know about
+ * @public
+ */
+export const ServerType = Object.freeze({
+  Standalone: 'Standalone',
+  Mongos: 'Mongos',
+  PossiblePrimary: 'PossiblePrimary',
+  RSPrimary: 'RSPrimary',
+  RSSecondary: 'RSSecondary',
+  RSArbiter: 'RSArbiter',
+  RSOther: 'RSOther',
+  RSGhost: 'RSGhost',
+  Unknown: 'Unknown',
+  LoadBalancer: 'LoadBalancer'
+} as const);
+
+/** @public */
+export type ServerType = (typeof ServerType)[keyof typeof ServerType];
+
+/**
+ * @public
+ * Gossiped in component for the cluster time tracking the state of user databases
+ * across the cluster. It may optionally include a signature identifying the process that
+ * generated such a value.
+ */
+export interface ClusterTime {
+  clusterTime: Timestamp;
+  /** Used to validate the identity of a request or response's ClusterTime. */
+  signature?: {
+    hash: Binary;
+    keyId: Long;
+  };
+}
+
+/** Shared function to determine clusterTime for a given topology or session */
+export function _advanceClusterTime(
+  entity: Topology | ClientSession,
+  $clusterTime: ClusterTime
+): void {
+  if (entity.clusterTime == null) {
+    entity.clusterTime = $clusterTime;
+  } else {
+    if ($clusterTime.clusterTime.greaterThan(entity.clusterTime.clusterTime)) {
+      entity.clusterTime = $clusterTime;
+    }
+  }
+}
diff --git a/backend/node_modules/mongodb/src/sdam/events.ts b/backend/node_modules/mongodb/src/sdam/events.ts
new file mode 100644
index 0000000..64cb6ff
--- /dev/null
+++ b/backend/node_modules/mongodb/src/sdam/events.ts
@@ -0,0 +1,219 @@
+import type { Document } from '../bson';
+import {
+  SERVER_CLOSED,
+  SERVER_DESCRIPTION_CHANGED,
+  SERVER_HEARTBEAT_FAILED,
+  SERVER_HEARTBEAT_STARTED,
+  SERVER_HEARTBEAT_SUCCEEDED,
+  SERVER_OPENING,
+  TOPOLOGY_CLOSED,
+  TOPOLOGY_DESCRIPTION_CHANGED,
+  TOPOLOGY_OPENING
+} from '../constants';
+import type { ServerDescription } from './server_description';
+import type { TopologyDescription } from './topology_description';
+
+/**
+ * Emitted when server description changes, but does NOT include changes to the RTT.
+ * @public
+ * @category Event
+ */
+export class ServerDescriptionChangedEvent {
+  /** A unique identifier for the topology */
+  topologyId: number;
+  /** The address (host/port pair) of the server */
+  address: string;
+  /** The previous server description */
+  previousDescription: ServerDescription;
+  /** The new server description */
+  newDescription: ServerDescription;
+  name = SERVER_DESCRIPTION_CHANGED;
+
+  /** @internal */
+  constructor(
+    topologyId: number,
+    address: string,
+    previousDescription: ServerDescription,
+    newDescription: ServerDescription
+  ) {
+    this.topologyId = topologyId;
+    this.address = address;
+    this.previousDescription = previousDescription;
+    this.newDescription = newDescription;
+  }
+}
+
+/**
+ * Emitted when server is initialized.
+ * @public
+ * @category Event
+ */
+export class ServerOpeningEvent {
+  /** A unique identifier for the topology */
+  topologyId: number;
+  /** The address (host/port pair) of the server */
+  address: string;
+  /** @internal */
+  name = SERVER_OPENING;
+
+  /** @internal */
+  constructor(topologyId: number, address: string) {
+    this.topologyId = topologyId;
+    this.address = address;
+  }
+}
+
+/**
+ * Emitted when server is closed.
+ * @public
+ * @category Event
+ */
+export class ServerClosedEvent {
+  /** A unique identifier for the topology */
+  topologyId: number;
+  /** The address (host/port pair) of the server */
+  address: string;
+  /** @internal */
+  name = SERVER_CLOSED;
+
+  /** @internal */
+  constructor(topologyId: number, address: string) {
+    this.topologyId = topologyId;
+    this.address = address;
+  }
+}
+
+/**
+ * Emitted when topology description changes.
+ * @public
+ * @category Event
+ */
+export class TopologyDescriptionChangedEvent {
+  /** A unique identifier for the topology */
+  topologyId: number;
+  /** The old topology description */
+  previousDescription: TopologyDescription;
+  /** The new topology description */
+  newDescription: TopologyDescription;
+  /** @internal */
+  name = TOPOLOGY_DESCRIPTION_CHANGED;
+
+  /** @internal */
+  constructor(
+    topologyId: number,
+    previousDescription: TopologyDescription,
+    newDescription: TopologyDescription
+  ) {
+    this.topologyId = topologyId;
+    this.previousDescription = previousDescription;
+    this.newDescription = newDescription;
+  }
+}
+
+/**
+ * Emitted when topology is initialized.
+ * @public
+ * @category Event
+ */
+export class TopologyOpeningEvent {
+  /** A unique identifier for the topology */
+  topologyId: number;
+  /** @internal */
+  name = TOPOLOGY_OPENING;
+
+  /** @internal */
+  constructor(topologyId: number) {
+    this.topologyId = topologyId;
+  }
+}
+
+/**
+ * Emitted when topology is closed.
+ * @public
+ * @category Event
+ */
+export class TopologyClosedEvent {
+  /** A unique identifier for the topology */
+  topologyId: number;
+  /** @internal */
+  name = TOPOLOGY_CLOSED;
+
+  /** @internal */
+  constructor(topologyId: number) {
+    this.topologyId = topologyId;
+  }
+}
+
+/**
+ * Emitted when the server monitor’s hello command is started - immediately before
+ * the hello command is serialized into raw BSON and written to the socket.
+ *
+ * @public
+ * @category Event
+ */
+export class ServerHeartbeatStartedEvent {
+  /** The connection id for the command */
+  connectionId: string;
+  /** Is true when using the streaming protocol */
+  awaited: boolean;
+  /** @internal */
+  name = SERVER_HEARTBEAT_STARTED;
+
+  /** @internal */
+  constructor(connectionId: string, awaited: boolean) {
+    this.connectionId = connectionId;
+    this.awaited = awaited;
+  }
+}
+
+/**
+ * Emitted when the server monitor’s hello succeeds.
+ * @public
+ * @category Event
+ */
+export class ServerHeartbeatSucceededEvent {
+  /** The connection id for the command */
+  connectionId: string;
+  /** The execution time of the event in ms */
+  duration: number;
+  /** The command reply */
+  reply: Document;
+  /** Is true when using the streaming protocol */
+  awaited: boolean;
+  /** @internal */
+  name = SERVER_HEARTBEAT_SUCCEEDED;
+
+  /** @internal */
+  constructor(connectionId: string, duration: number, reply: Document | null, awaited: boolean) {
+    this.connectionId = connectionId;
+    this.duration = duration;
+    this.reply = reply ?? {};
+    this.awaited = awaited;
+  }
+}
+
+/**
+ * Emitted when the server monitor’s hello fails, either with an “ok: 0” or a socket exception.
+ * @public
+ * @category Event
+ */
+export class ServerHeartbeatFailedEvent {
+  /** The connection id for the command */
+  connectionId: string;
+  /** The execution time of the event in ms */
+  duration: number;
+  /** The command failure */
+  failure: Error;
+  /** Is true when using the streaming protocol */
+  awaited: boolean;
+  /** @internal */
+  name = SERVER_HEARTBEAT_FAILED;
+
+  /** @internal */
+  constructor(connectionId: string, duration: number, failure: Error, awaited: boolean) {
+    this.connectionId = connectionId;
+    this.duration = duration;
+    this.failure = failure;
+    this.awaited = awaited;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/sdam/monitor.ts b/backend/node_modules/mongodb/src/sdam/monitor.ts
new file mode 100644
index 0000000..4c4fa3b
--- /dev/null
+++ b/backend/node_modules/mongodb/src/sdam/monitor.ts
@@ -0,0 +1,777 @@
+import { clearTimeout, setTimeout } from 'timers';
+
+import { type Document, Long } from '../bson';
+import { connect, makeConnection, makeSocket, performInitialHandshake } from '../cmap/connect';
+import type { Connection, ConnectionOptions } from '../cmap/connection';
+import { getFAASEnv } from '../cmap/handshake/client_metadata';
+import { LEGACY_HELLO_COMMAND } from '../constants';
+import { MongoError, MongoErrorLabel, MongoNetworkTimeoutError } from '../error';
+import { MongoLoggableComponent } from '../mongo_logger';
+import { CancellationToken, TypedEventEmitter } from '../mongo_types';
+import {
+  calculateDurationInMs,
+  type Callback,
+  type EventEmitterWithState,
+  makeStateMachine,
+  now,
+  ns
+} from '../utils';
+import { ServerType, STATE_CLOSED, STATE_CLOSING } from './common';
+import {
+  ServerHeartbeatFailedEvent,
+  ServerHeartbeatStartedEvent,
+  ServerHeartbeatSucceededEvent
+} from './events';
+import { Server } from './server';
+import type { TopologyVersion } from './server_description';
+
+/** @internal */
+const kServer = Symbol('server');
+/** @internal */
+const kMonitorId = Symbol('monitorId');
+/** @internal */
+const kCancellationToken = Symbol('cancellationToken');
+
+const STATE_IDLE = 'idle';
+const STATE_MONITORING = 'monitoring';
+const stateTransition = makeStateMachine({
+  [STATE_CLOSING]: [STATE_CLOSING, STATE_IDLE, STATE_CLOSED],
+  [STATE_CLOSED]: [STATE_CLOSED, STATE_MONITORING],
+  [STATE_IDLE]: [STATE_IDLE, STATE_MONITORING, STATE_CLOSING],
+  [STATE_MONITORING]: [STATE_MONITORING, STATE_IDLE, STATE_CLOSING]
+});
+
+const INVALID_REQUEST_CHECK_STATES = new Set([STATE_CLOSING, STATE_CLOSED, STATE_MONITORING]);
+function isInCloseState(monitor: Monitor) {
+  return monitor.s.state === STATE_CLOSED || monitor.s.state === STATE_CLOSING;
+}
+
+/** @public */
+export const ServerMonitoringMode = Object.freeze({
+  auto: 'auto',
+  poll: 'poll',
+  stream: 'stream'
+} as const);
+
+/** @public */
+export type ServerMonitoringMode = (typeof ServerMonitoringMode)[keyof typeof ServerMonitoringMode];
+
+/** @internal */
+export interface MonitorPrivate {
+  state: string;
+}
+
+/** @public */
+export interface MonitorOptions
+  extends Omit<ConnectionOptions, 'id' | 'generation' | 'hostAddress'> {
+  connectTimeoutMS: number;
+  heartbeatFrequencyMS: number;
+  minHeartbeatFrequencyMS: number;
+  serverMonitoringMode: ServerMonitoringMode;
+}
+
+/** @public */
+export type MonitorEvents = {
+  serverHeartbeatStarted(event: ServerHeartbeatStartedEvent): void;
+  serverHeartbeatSucceeded(event: ServerHeartbeatSucceededEvent): void;
+  serverHeartbeatFailed(event: ServerHeartbeatFailedEvent): void;
+  resetServer(error?: MongoError): void;
+  resetConnectionPool(): void;
+  close(): void;
+} & EventEmitterWithState;
+
+/** @internal */
+export class Monitor extends TypedEventEmitter<MonitorEvents> {
+  /** @internal */
+  s: MonitorPrivate;
+  address: string;
+  options: Readonly<
+    Pick<
+      MonitorOptions,
+      | 'connectTimeoutMS'
+      | 'heartbeatFrequencyMS'
+      | 'minHeartbeatFrequencyMS'
+      | 'serverMonitoringMode'
+    >
+  >;
+  connectOptions: ConnectionOptions;
+  isRunningInFaasEnv: boolean;
+  [kServer]: Server;
+  connection: Connection | null;
+  [kCancellationToken]: CancellationToken;
+  /** @internal */
+  [kMonitorId]?: MonitorInterval;
+  rttPinger?: RTTPinger;
+  /** @internal */
+  override component = MongoLoggableComponent.TOPOLOGY;
+  /** @internal */
+  private rttSampler: RTTSampler;
+
+  constructor(server: Server, options: MonitorOptions) {
+    super();
+
+    this[kServer] = server;
+    this.connection = null;
+    this[kCancellationToken] = new CancellationToken();
+    this[kCancellationToken].setMaxListeners(Infinity);
+    this[kMonitorId] = undefined;
+    this.s = {
+      state: STATE_CLOSED
+    };
+    this.address = server.description.address;
+    this.options = Object.freeze({
+      connectTimeoutMS: options.connectTimeoutMS ?? 10000,
+      heartbeatFrequencyMS: options.heartbeatFrequencyMS ?? 10000,
+      minHeartbeatFrequencyMS: options.minHeartbeatFrequencyMS ?? 500,
+      serverMonitoringMode: options.serverMonitoringMode
+    });
+    this.isRunningInFaasEnv = getFAASEnv() != null;
+    this.mongoLogger = this[kServer].topology.client?.mongoLogger;
+    this.rttSampler = new RTTSampler(10);
+
+    const cancellationToken = this[kCancellationToken];
+    // TODO: refactor this to pull it directly from the pool, requires new ConnectionPool integration
+    const connectOptions = {
+      id: '<monitor>' as const,
+      generation: server.pool.generation,
+      cancellationToken,
+      hostAddress: server.description.hostAddress,
+      ...options,
+      // force BSON serialization options
+      raw: false,
+      useBigInt64: false,
+      promoteLongs: true,
+      promoteValues: true,
+      promoteBuffers: true
+    };
+
+    // ensure no authentication is used for monitoring
+    delete connectOptions.credentials;
+    if (connectOptions.autoEncrypter) {
+      delete connectOptions.autoEncrypter;
+    }
+
+    this.connectOptions = Object.freeze(connectOptions);
+  }
+
+  connect(): void {
+    if (this.s.state !== STATE_CLOSED) {
+      return;
+    }
+
+    // start
+    const heartbeatFrequencyMS = this.options.heartbeatFrequencyMS;
+    const minHeartbeatFrequencyMS = this.options.minHeartbeatFrequencyMS;
+    this[kMonitorId] = new MonitorInterval(monitorServer(this), {
+      heartbeatFrequencyMS: heartbeatFrequencyMS,
+      minHeartbeatFrequencyMS: minHeartbeatFrequencyMS,
+      immediate: true
+    });
+  }
+
+  requestCheck(): void {
+    if (INVALID_REQUEST_CHECK_STATES.has(this.s.state)) {
+      return;
+    }
+
+    this[kMonitorId]?.wake();
+  }
+
+  reset(): void {
+    const topologyVersion = this[kServer].description.topologyVersion;
+    if (isInCloseState(this) || topologyVersion == null) {
+      return;
+    }
+
+    stateTransition(this, STATE_CLOSING);
+    resetMonitorState(this);
+
+    // restart monitor
+    stateTransition(this, STATE_IDLE);
+
+    // restart monitoring
+    const heartbeatFrequencyMS = this.options.heartbeatFrequencyMS;
+    const minHeartbeatFrequencyMS = this.options.minHeartbeatFrequencyMS;
+    this[kMonitorId] = new MonitorInterval(monitorServer(this), {
+      heartbeatFrequencyMS: heartbeatFrequencyMS,
+      minHeartbeatFrequencyMS: minHeartbeatFrequencyMS
+    });
+  }
+
+  close(): void {
+    if (isInCloseState(this)) {
+      return;
+    }
+
+    stateTransition(this, STATE_CLOSING);
+    resetMonitorState(this);
+
+    // close monitor
+    this.emit('close');
+    stateTransition(this, STATE_CLOSED);
+  }
+
+  get roundTripTime(): number {
+    return this.rttSampler.average();
+  }
+
+  get minRoundTripTime(): number {
+    return this.rttSampler.min();
+  }
+
+  get latestRtt(): number | null {
+    return this.rttSampler.last;
+  }
+
+  addRttSample(rtt: number) {
+    this.rttSampler.addSample(rtt);
+  }
+
+  clearRttSamples() {
+    this.rttSampler.clear();
+  }
+}
+
+function resetMonitorState(monitor: Monitor) {
+  monitor[kMonitorId]?.stop();
+  monitor[kMonitorId] = undefined;
+
+  monitor.rttPinger?.close();
+  monitor.rttPinger = undefined;
+
+  monitor[kCancellationToken].emit('cancel');
+
+  monitor.connection?.destroy();
+  monitor.connection = null;
+
+  monitor.clearRttSamples();
+}
+
+function useStreamingProtocol(monitor: Monitor, topologyVersion: TopologyVersion | null): boolean {
+  // If we have no topology version we always poll no matter
+  // what the user provided, since the server does not support
+  // the streaming protocol.
+  if (topologyVersion == null) return false;
+
+  const serverMonitoringMode = monitor.options.serverMonitoringMode;
+  if (serverMonitoringMode === ServerMonitoringMode.poll) return false;
+  if (serverMonitoringMode === ServerMonitoringMode.stream) return true;
+
+  // If we are in auto mode, we need to figure out if we're in a FaaS
+  // environment or not and choose the appropriate mode.
+  if (monitor.isRunningInFaasEnv) return false;
+  return true;
+}
+
+function checkServer(monitor: Monitor, callback: Callback<Document | null>) {
+  let start: number;
+  let awaited: boolean;
+  const topologyVersion = monitor[kServer].description.topologyVersion;
+  const isAwaitable = useStreamingProtocol(monitor, topologyVersion);
+  monitor.emitAndLogHeartbeat(
+    Server.SERVER_HEARTBEAT_STARTED,
+    monitor[kServer].topology.s.id,
+    undefined,
+    new ServerHeartbeatStartedEvent(monitor.address, isAwaitable)
+  );
+
+  function onHeartbeatFailed(err: Error) {
+    monitor.connection?.destroy();
+    monitor.connection = null;
+    monitor.emitAndLogHeartbeat(
+      Server.SERVER_HEARTBEAT_FAILED,
+      monitor[kServer].topology.s.id,
+      undefined,
+      new ServerHeartbeatFailedEvent(monitor.address, calculateDurationInMs(start), err, awaited)
+    );
+
+    const error = !(err instanceof MongoError)
+      ? new MongoError(MongoError.buildErrorMessage(err), { cause: err })
+      : err;
+    error.addErrorLabel(MongoErrorLabel.ResetPool);
+    if (error instanceof MongoNetworkTimeoutError) {
+      error.addErrorLabel(MongoErrorLabel.InterruptInUseConnections);
+    }
+
+    monitor.emit('resetServer', error);
+    callback(err);
+  }
+
+  function onHeartbeatSucceeded(hello: Document) {
+    if (!('isWritablePrimary' in hello)) {
+      // Provide hello-style response document.
+      hello.isWritablePrimary = hello[LEGACY_HELLO_COMMAND];
+    }
+
+    // NOTE: here we use the latestRtt as this measurement corresponds with the value
+    // obtained for this successful heartbeat, if there is no latestRtt, then we calculate the
+    // duration
+    const duration =
+      isAwaitable && monitor.rttPinger
+        ? (monitor.rttPinger.latestRtt ?? calculateDurationInMs(start))
+        : calculateDurationInMs(start);
+
+    monitor.addRttSample(duration);
+
+    monitor.emitAndLogHeartbeat(
+      Server.SERVER_HEARTBEAT_SUCCEEDED,
+      monitor[kServer].topology.s.id,
+      hello.connectionId,
+      new ServerHeartbeatSucceededEvent(monitor.address, duration, hello, isAwaitable)
+    );
+
+    if (isAwaitable) {
+      // If we are using the streaming protocol then we immediately issue another 'started'
+      // event, otherwise the "check" is complete and return to the main monitor loop
+      monitor.emitAndLogHeartbeat(
+        Server.SERVER_HEARTBEAT_STARTED,
+        monitor[kServer].topology.s.id,
+        undefined,
+        new ServerHeartbeatStartedEvent(monitor.address, true)
+      );
+      // We have not actually sent an outgoing handshake, but when we get the next response we
+      // want the duration to reflect the time since we last heard from the server
+      start = now();
+    } else {
+      monitor.rttPinger?.close();
+      monitor.rttPinger = undefined;
+
+      callback(undefined, hello);
+    }
+  }
+
+  const { connection } = monitor;
+  if (connection && !connection.closed) {
+    const { serverApi, helloOk } = connection;
+    const connectTimeoutMS = monitor.options.connectTimeoutMS;
+    const maxAwaitTimeMS = monitor.options.heartbeatFrequencyMS;
+
+    const cmd = {
+      [serverApi?.version || helloOk ? 'hello' : LEGACY_HELLO_COMMAND]: 1,
+      ...(isAwaitable && topologyVersion
+        ? { maxAwaitTimeMS, topologyVersion: makeTopologyVersion(topologyVersion) }
+        : {})
+    };
+
+    const options = isAwaitable
+      ? {
+          socketTimeoutMS: connectTimeoutMS ? connectTimeoutMS + maxAwaitTimeMS : 0,
+          exhaustAllowed: true
+        }
+      : { socketTimeoutMS: connectTimeoutMS };
+
+    if (isAwaitable && monitor.rttPinger == null) {
+      monitor.rttPinger = new RTTPinger(monitor);
+    }
+
+    // Record new start time before sending handshake
+    start = now();
+
+    if (isAwaitable) {
+      awaited = true;
+      return connection.exhaustCommand(ns('admin.$cmd'), cmd, options, (error, hello) => {
+        if (error) return onHeartbeatFailed(error);
+        return onHeartbeatSucceeded(hello);
+      });
+    }
+
+    awaited = false;
+    connection
+      .command(ns('admin.$cmd'), cmd, options)
+
+      .then(onHeartbeatSucceeded, onHeartbeatFailed);
+
+    return;
+  }
+
+  // connecting does an implicit `hello`
+  (async () => {
+    const socket = await makeSocket(monitor.connectOptions);
+    const connection = makeConnection(monitor.connectOptions, socket);
+    // The start time is after socket creation but before the handshake
+    start = now();
+    try {
+      await performInitialHandshake(connection, monitor.connectOptions);
+      return connection;
+    } catch (error) {
+      connection.destroy();
+      throw error;
+    }
+  })().then(
+    connection => {
+      if (isInCloseState(monitor)) {
+        connection.destroy();
+        return;
+      }
+      const duration = calculateDurationInMs(start);
+      monitor.addRttSample(duration);
+
+      monitor.connection = connection;
+      monitor.emitAndLogHeartbeat(
+        Server.SERVER_HEARTBEAT_SUCCEEDED,
+        monitor[kServer].topology.s.id,
+        connection.hello?.connectionId,
+        new ServerHeartbeatSucceededEvent(
+          monitor.address,
+          duration,
+          connection.hello,
+          useStreamingProtocol(monitor, connection.hello?.topologyVersion)
+        )
+      );
+
+      callback(undefined, connection.hello);
+    },
+    error => {
+      monitor.connection = null;
+      awaited = false;
+      onHeartbeatFailed(error);
+    }
+  );
+}
+
+function monitorServer(monitor: Monitor) {
+  return (callback: Callback) => {
+    if (monitor.s.state === STATE_MONITORING) {
+      process.nextTick(callback);
+      return;
+    }
+    stateTransition(monitor, STATE_MONITORING);
+    function done() {
+      if (!isInCloseState(monitor)) {
+        stateTransition(monitor, STATE_IDLE);
+      }
+
+      callback();
+    }
+
+    checkServer(monitor, (err, hello) => {
+      if (err) {
+        // otherwise an error occurred on initial discovery, also bail
+        if (monitor[kServer].description.type === ServerType.Unknown) {
+          return done();
+        }
+      }
+
+      // if the check indicates streaming is supported, immediately reschedule monitoring
+      if (useStreamingProtocol(monitor, hello?.topologyVersion)) {
+        setTimeout(() => {
+          if (!isInCloseState(monitor)) {
+            monitor[kMonitorId]?.wake();
+          }
+        }, 0);
+      }
+
+      done();
+    });
+  };
+}
+
+function makeTopologyVersion(tv: TopologyVersion) {
+  return {
+    processId: tv.processId,
+    // tests mock counter as just number, but in a real situation counter should always be a Long
+    // TODO(NODE-2674): Preserve int64 sent from MongoDB
+    counter: Long.isLong(tv.counter) ? tv.counter : Long.fromNumber(tv.counter)
+  };
+}
+
+/** @internal */
+export interface RTTPingerOptions extends ConnectionOptions {
+  heartbeatFrequencyMS: number;
+}
+
+/** @internal */
+export class RTTPinger {
+  connection?: Connection;
+  /** @internal */
+  [kCancellationToken]: CancellationToken;
+  /** @internal */
+  [kMonitorId]: NodeJS.Timeout;
+  /** @internal */
+  monitor: Monitor;
+  closed: boolean;
+  /** @internal */
+  latestRtt?: number;
+
+  constructor(monitor: Monitor) {
+    this.connection = undefined;
+    this[kCancellationToken] = monitor[kCancellationToken];
+    this.closed = false;
+    this.monitor = monitor;
+    this.latestRtt = monitor.latestRtt ?? undefined;
+
+    const heartbeatFrequencyMS = monitor.options.heartbeatFrequencyMS;
+    this[kMonitorId] = setTimeout(() => this.measureRoundTripTime(), heartbeatFrequencyMS);
+  }
+
+  get roundTripTime(): number {
+    return this.monitor.roundTripTime;
+  }
+
+  get minRoundTripTime(): number {
+    return this.monitor.minRoundTripTime;
+  }
+
+  close(): void {
+    this.closed = true;
+    clearTimeout(this[kMonitorId]);
+
+    this.connection?.destroy();
+    this.connection = undefined;
+  }
+
+  private measureAndReschedule(start: number, conn?: Connection) {
+    if (this.closed) {
+      conn?.destroy();
+      return;
+    }
+
+    if (this.connection == null) {
+      this.connection = conn;
+    }
+
+    this.latestRtt = calculateDurationInMs(start);
+    this[kMonitorId] = setTimeout(
+      () => this.measureRoundTripTime(),
+      this.monitor.options.heartbeatFrequencyMS
+    );
+  }
+
+  private measureRoundTripTime() {
+    const start = now();
+
+    if (this.closed) {
+      return;
+    }
+
+    const connection = this.connection;
+    if (connection == null) {
+      connect(this.monitor.connectOptions).then(
+        connection => {
+          this.measureAndReschedule(start, connection);
+        },
+        () => {
+          this.connection = undefined;
+        }
+      );
+      return;
+    }
+
+    const commandName =
+      connection.serverApi?.version || connection.helloOk ? 'hello' : LEGACY_HELLO_COMMAND;
+
+    connection.command(ns('admin.$cmd'), { [commandName]: 1 }, undefined).then(
+      () => this.measureAndReschedule(start),
+      () => {
+        this.connection?.destroy();
+        this.connection = undefined;
+        return;
+      }
+    );
+  }
+}
+
+/**
+ * @internal
+ */
+export interface MonitorIntervalOptions {
+  /** The interval to execute a method on */
+  heartbeatFrequencyMS: number;
+  /** A minimum interval that must elapse before the method is called */
+  minHeartbeatFrequencyMS: number;
+  /** Whether the method should be called immediately when the interval is started  */
+  immediate: boolean;
+}
+
+/**
+ * @internal
+ */
+export class MonitorInterval {
+  fn: (callback: Callback) => void;
+  timerId: NodeJS.Timeout | undefined;
+  lastExecutionEnded: number;
+  isExpeditedCallToFnScheduled = false;
+  stopped = false;
+  isExecutionInProgress = false;
+  hasExecutedOnce = false;
+
+  heartbeatFrequencyMS: number;
+  minHeartbeatFrequencyMS: number;
+
+  constructor(fn: (callback: Callback) => void, options: Partial<MonitorIntervalOptions> = {}) {
+    this.fn = fn;
+    this.lastExecutionEnded = -Infinity;
+
+    this.heartbeatFrequencyMS = options.heartbeatFrequencyMS ?? 1000;
+    this.minHeartbeatFrequencyMS = options.minHeartbeatFrequencyMS ?? 500;
+
+    if (options.immediate) {
+      this._executeAndReschedule();
+    } else {
+      this._reschedule(undefined);
+    }
+  }
+
+  wake() {
+    const currentTime = now();
+    const timeSinceLastCall = currentTime - this.lastExecutionEnded;
+
+    // TODO(NODE-4674): Add error handling and logging to the monitor
+    if (timeSinceLastCall < 0) {
+      return this._executeAndReschedule();
+    }
+
+    if (this.isExecutionInProgress) {
+      return;
+    }
+
+    // debounce multiple calls to wake within the `minInterval`
+    if (this.isExpeditedCallToFnScheduled) {
+      return;
+    }
+
+    // reschedule a call as soon as possible, ensuring the call never happens
+    // faster than the `minInterval`
+    if (timeSinceLastCall < this.minHeartbeatFrequencyMS) {
+      this.isExpeditedCallToFnScheduled = true;
+      this._reschedule(this.minHeartbeatFrequencyMS - timeSinceLastCall);
+      return;
+    }
+
+    this._executeAndReschedule();
+  }
+
+  stop() {
+    this.stopped = true;
+    if (this.timerId) {
+      clearTimeout(this.timerId);
+      this.timerId = undefined;
+    }
+
+    this.lastExecutionEnded = -Infinity;
+    this.isExpeditedCallToFnScheduled = false;
+  }
+
+  toString() {
+    return JSON.stringify(this);
+  }
+
+  toJSON() {
+    const currentTime = now();
+    const timeSinceLastCall = currentTime - this.lastExecutionEnded;
+    return {
+      timerId: this.timerId != null ? 'set' : 'cleared',
+      lastCallTime: this.lastExecutionEnded,
+      isExpeditedCheckScheduled: this.isExpeditedCallToFnScheduled,
+      stopped: this.stopped,
+      heartbeatFrequencyMS: this.heartbeatFrequencyMS,
+      minHeartbeatFrequencyMS: this.minHeartbeatFrequencyMS,
+      currentTime,
+      timeSinceLastCall
+    };
+  }
+
+  private _reschedule(ms?: number) {
+    if (this.stopped) return;
+    if (this.timerId) {
+      clearTimeout(this.timerId);
+    }
+
+    this.timerId = setTimeout(this._executeAndReschedule, ms || this.heartbeatFrequencyMS);
+  }
+
+  private _executeAndReschedule = () => {
+    if (this.stopped) return;
+    if (this.timerId) {
+      clearTimeout(this.timerId);
+    }
+
+    this.isExpeditedCallToFnScheduled = false;
+    this.isExecutionInProgress = true;
+
+    this.fn(() => {
+      this.lastExecutionEnded = now();
+      this.isExecutionInProgress = false;
+      this._reschedule(this.heartbeatFrequencyMS);
+    });
+  };
+}
+
+/** @internal
+ * This class implements the RTT sampling logic specified for [CSOT](https://github.com/mongodb/specifications/blob/bbb335e60cd7ea1e0f7cd9a9443cb95fc9d3b64d/source/client-side-operations-timeout/client-side-operations-timeout.md#drivers-use-minimum-rtt-to-short-circuit-operations)
+ *
+ * This is implemented as a [circular buffer](https://en.wikipedia.org/wiki/Circular_buffer) keeping
+ * the most recent `windowSize` samples
+ * */
+export class RTTSampler {
+  /** Index of the next slot to be overwritten */
+  private writeIndex: number;
+  private length: number;
+  private rttSamples: Float64Array;
+
+  constructor(windowSize = 10) {
+    this.rttSamples = new Float64Array(windowSize);
+    this.length = 0;
+    this.writeIndex = 0;
+  }
+
+  /**
+   * Adds an rtt sample to the end of the circular buffer
+   * When `windowSize` samples have been collected, `addSample` overwrites the least recently added
+   * sample
+   */
+  addSample(sample: number) {
+    this.rttSamples[this.writeIndex++] = sample;
+    if (this.length < this.rttSamples.length) {
+      this.length++;
+    }
+
+    this.writeIndex %= this.rttSamples.length;
+  }
+
+  /**
+   * When \< 2 samples have been collected, returns 0
+   * Otherwise computes the minimum value samples contained in the buffer
+   */
+  min(): number {
+    if (this.length < 2) return 0;
+    let min = this.rttSamples[0];
+    for (let i = 1; i < this.length; i++) {
+      if (this.rttSamples[i] < min) min = this.rttSamples[i];
+    }
+
+    return min;
+  }
+
+  /**
+   * Returns mean of samples contained in the buffer
+   */
+  average(): number {
+    if (this.length === 0) return 0;
+    let sum = 0;
+    for (let i = 0; i < this.length; i++) {
+      sum += this.rttSamples[i];
+    }
+
+    return sum / this.length;
+  }
+
+  /**
+   * Returns most recently inserted element in the buffer
+   * Returns null if the buffer is empty
+   * */
+  get last(): number | null {
+    if (this.length === 0) return null;
+    return this.rttSamples[this.writeIndex === 0 ? this.length - 1 : this.writeIndex - 1];
+  }
+
+  /**
+   * Clear the buffer
+   * NOTE: this does not overwrite the data held in the internal array, just the pointers into
+   * this array
+   */
+  clear() {
+    this.length = 0;
+    this.writeIndex = 0;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/sdam/server.ts b/backend/node_modules/mongodb/src/sdam/server.ts
new file mode 100644
index 0000000..47a3902
--- /dev/null
+++ b/backend/node_modules/mongodb/src/sdam/server.ts
@@ -0,0 +1,558 @@
+import type { Document } from '../bson';
+import { type AutoEncrypter } from '../client-side-encryption/auto_encrypter';
+import { type CommandOptions, Connection } from '../cmap/connection';
+import {
+  ConnectionPool,
+  type ConnectionPoolEvents,
+  type ConnectionPoolOptions
+} from '../cmap/connection_pool';
+import { PoolClearedError } from '../cmap/errors';
+import { type MongoDBResponseConstructor } from '../cmap/wire_protocol/responses';
+import {
+  APM_EVENTS,
+  CLOSED,
+  CMAP_EVENTS,
+  CONNECT,
+  DESCRIPTION_RECEIVED,
+  ENDED,
+  HEARTBEAT_EVENTS,
+  SERVER_HEARTBEAT_FAILED,
+  SERVER_HEARTBEAT_STARTED,
+  SERVER_HEARTBEAT_SUCCEEDED
+} from '../constants';
+import {
+  type AnyError,
+  isNetworkErrorBeforeHandshake,
+  isNodeShuttingDownError,
+  isSDAMUnrecoverableError,
+  MONGODB_ERROR_CODES,
+  MongoError,
+  MongoErrorLabel,
+  MongoInvalidArgumentError,
+  MongoNetworkError,
+  MongoNetworkTimeoutError,
+  MongoRuntimeError,
+  MongoServerClosedError,
+  type MongoServerError,
+  needsRetryableWriteLabel
+} from '../error';
+import type { ServerApi } from '../mongo_client';
+import { TypedEventEmitter } from '../mongo_types';
+import type { GetMoreOptions } from '../operations/get_more';
+import type { ClientSession } from '../sessions';
+import { type TimeoutContext } from '../timeout';
+import { isTransactionCommand } from '../transactions';
+import {
+  type EventEmitterWithState,
+  makeStateMachine,
+  maxWireVersion,
+  type MongoDBNamespace,
+  supportsRetryableWrites
+} from '../utils';
+import { throwIfWriteConcernError } from '../write_concern';
+import {
+  type ClusterTime,
+  STATE_CLOSED,
+  STATE_CLOSING,
+  STATE_CONNECTED,
+  STATE_CONNECTING,
+  TopologyType
+} from './common';
+import type {
+  ServerHeartbeatFailedEvent,
+  ServerHeartbeatStartedEvent,
+  ServerHeartbeatSucceededEvent
+} from './events';
+import { Monitor, type MonitorOptions } from './monitor';
+import { compareTopologyVersion, ServerDescription } from './server_description';
+import type { Topology } from './topology';
+
+const stateTransition = makeStateMachine({
+  [STATE_CLOSED]: [STATE_CLOSED, STATE_CONNECTING],
+  [STATE_CONNECTING]: [STATE_CONNECTING, STATE_CLOSING, STATE_CONNECTED, STATE_CLOSED],
+  [STATE_CONNECTED]: [STATE_CONNECTED, STATE_CLOSING, STATE_CLOSED],
+  [STATE_CLOSING]: [STATE_CLOSING, STATE_CLOSED]
+});
+
+/** @internal */
+export type ServerOptions = Omit<ConnectionPoolOptions, 'id' | 'generation' | 'hostAddress'> &
+  MonitorOptions;
+
+/** @internal */
+export interface ServerPrivate {
+  /** The server description for this server */
+  description: ServerDescription;
+  /** A copy of the options used to construct this instance */
+  options: ServerOptions;
+  /** The current state of the Server */
+  state: string;
+  /** MongoDB server API version */
+  serverApi?: ServerApi;
+  /** A count of the operations currently running against the server. */
+  operationCount: number;
+}
+
+/** @public */
+export type ServerEvents = {
+  serverHeartbeatStarted(event: ServerHeartbeatStartedEvent): void;
+  serverHeartbeatSucceeded(event: ServerHeartbeatSucceededEvent): void;
+  serverHeartbeatFailed(event: ServerHeartbeatFailedEvent): void;
+  /** Top level MongoClient doesn't emit this so it is marked: @internal */
+  connect(server: Server): void;
+  descriptionReceived(description: ServerDescription): void;
+  closed(): void;
+  ended(): void;
+} & ConnectionPoolEvents &
+  EventEmitterWithState;
+
+/** @internal */
+export type ServerCommandOptions = Omit<CommandOptions, 'timeoutContext' | 'socketTimeoutMS'> & {
+  timeoutContext: TimeoutContext;
+};
+
+/** @internal */
+export class Server extends TypedEventEmitter<ServerEvents> {
+  /** @internal */
+  s: ServerPrivate;
+  /** @internal */
+  topology: Topology;
+  /** @internal */
+  pool: ConnectionPool;
+  serverApi?: ServerApi;
+  hello?: Document;
+  monitor: Monitor | null;
+
+  /** @event */
+  static readonly SERVER_HEARTBEAT_STARTED = SERVER_HEARTBEAT_STARTED;
+  /** @event */
+  static readonly SERVER_HEARTBEAT_SUCCEEDED = SERVER_HEARTBEAT_SUCCEEDED;
+  /** @event */
+  static readonly SERVER_HEARTBEAT_FAILED = SERVER_HEARTBEAT_FAILED;
+  /** @event */
+  static readonly CONNECT = CONNECT;
+  /** @event */
+  static readonly DESCRIPTION_RECEIVED = DESCRIPTION_RECEIVED;
+  /** @event */
+  static readonly CLOSED = CLOSED;
+  /** @event */
+  static readonly ENDED = ENDED;
+
+  /**
+   * Create a server
+   */
+  constructor(topology: Topology, description: ServerDescription, options: ServerOptions) {
+    super();
+
+    this.serverApi = options.serverApi;
+
+    const poolOptions = { hostAddress: description.hostAddress, ...options };
+
+    this.topology = topology;
+    this.pool = new ConnectionPool(this, poolOptions);
+
+    this.s = {
+      description,
+      options,
+      state: STATE_CLOSED,
+      operationCount: 0
+    };
+
+    for (const event of [...CMAP_EVENTS, ...APM_EVENTS]) {
+      this.pool.on(event, (e: any) => this.emit(event, e));
+    }
+
+    this.pool.on(Connection.CLUSTER_TIME_RECEIVED, (clusterTime: ClusterTime) => {
+      this.clusterTime = clusterTime;
+    });
+
+    if (this.loadBalanced) {
+      this.monitor = null;
+      // monitoring is disabled in load balancing mode
+      return;
+    }
+
+    // create the monitor
+    this.monitor = new Monitor(this, this.s.options);
+
+    for (const event of HEARTBEAT_EVENTS) {
+      this.monitor.on(event, (e: any) => this.emit(event, e));
+    }
+
+    this.monitor.on('resetServer', (error: MongoServerError) => markServerUnknown(this, error));
+    this.monitor.on(Server.SERVER_HEARTBEAT_SUCCEEDED, (event: ServerHeartbeatSucceededEvent) => {
+      this.emit(
+        Server.DESCRIPTION_RECEIVED,
+        new ServerDescription(this.description.hostAddress, event.reply, {
+          roundTripTime: this.monitor?.roundTripTime,
+          minRoundTripTime: this.monitor?.minRoundTripTime
+        })
+      );
+
+      if (this.s.state === STATE_CONNECTING) {
+        stateTransition(this, STATE_CONNECTED);
+        this.emit(Server.CONNECT, this);
+      }
+    });
+  }
+
+  get clusterTime(): ClusterTime | undefined {
+    return this.topology.clusterTime;
+  }
+
+  set clusterTime(clusterTime: ClusterTime | undefined) {
+    this.topology.clusterTime = clusterTime;
+  }
+
+  get description(): ServerDescription {
+    return this.s.description;
+  }
+
+  get name(): string {
+    return this.s.description.address;
+  }
+
+  get autoEncrypter(): AutoEncrypter | undefined {
+    if (this.s.options && this.s.options.autoEncrypter) {
+      return this.s.options.autoEncrypter;
+    }
+    return;
+  }
+
+  get loadBalanced(): boolean {
+    return this.topology.description.type === TopologyType.LoadBalanced;
+  }
+
+  /**
+   * Initiate server connect
+   */
+  connect(): void {
+    if (this.s.state !== STATE_CLOSED) {
+      return;
+    }
+
+    stateTransition(this, STATE_CONNECTING);
+
+    // If in load balancer mode we automatically set the server to
+    // a load balancer. It never transitions out of this state and
+    // has no monitor.
+    if (!this.loadBalanced) {
+      this.monitor?.connect();
+    } else {
+      stateTransition(this, STATE_CONNECTED);
+      this.emit(Server.CONNECT, this);
+    }
+  }
+
+  /** Destroy the server connection */
+  destroy(): void {
+    if (this.s.state === STATE_CLOSED) {
+      return;
+    }
+
+    stateTransition(this, STATE_CLOSING);
+
+    if (!this.loadBalanced) {
+      this.monitor?.close();
+    }
+
+    this.pool.close();
+    stateTransition(this, STATE_CLOSED);
+    this.emit('closed');
+  }
+
+  /**
+   * Immediately schedule monitoring of this server. If there already an attempt being made
+   * this will be a no-op.
+   */
+  requestCheck(): void {
+    if (!this.loadBalanced) {
+      this.monitor?.requestCheck();
+    }
+  }
+
+  public async command<T extends MongoDBResponseConstructor>(
+    ns: MongoDBNamespace,
+    command: Document,
+    options: ServerCommandOptions,
+    responseType: T | undefined
+  ): Promise<typeof responseType extends undefined ? Document : InstanceType<T>>;
+
+  public async command(
+    ns: MongoDBNamespace,
+    command: Document,
+    options: ServerCommandOptions
+  ): Promise<Document>;
+
+  public async command(
+    ns: MongoDBNamespace,
+    cmd: Document,
+    options: ServerCommandOptions,
+    responseType?: MongoDBResponseConstructor
+  ): Promise<Document> {
+    if (ns.db == null || typeof ns === 'string') {
+      throw new MongoInvalidArgumentError('Namespace must not be a string');
+    }
+
+    if (this.s.state === STATE_CLOSING || this.s.state === STATE_CLOSED) {
+      throw new MongoServerClosedError();
+    }
+
+    // Clone the options
+    const finalOptions = Object.assign({}, options, {
+      wireProtocolCommand: false,
+      directConnection: this.topology.s.options.directConnection
+    });
+
+    // There are cases where we need to flag the read preference not to get sent in
+    // the command, such as pre-5.0 servers attempting to perform an aggregate write
+    // with a non-primary read preference. In this case the effective read preference
+    // (primary) is not the same as the provided and must be removed completely.
+    if (finalOptions.omitReadPreference) {
+      delete finalOptions.readPreference;
+    }
+
+    if (this.description.iscryptd) {
+      finalOptions.omitMaxTimeMS = true;
+    }
+
+    const session = finalOptions.session;
+    let conn = session?.pinnedConnection;
+
+    this.incrementOperationCount();
+    if (conn == null) {
+      try {
+        conn = await this.pool.checkOut(options);
+        if (this.loadBalanced && isPinnableCommand(cmd, session)) {
+          session?.pin(conn);
+        }
+      } catch (checkoutError) {
+        this.decrementOperationCount();
+        if (!(checkoutError instanceof PoolClearedError)) this.handleError(checkoutError);
+        throw checkoutError;
+      }
+    }
+
+    try {
+      try {
+        const res = await conn.command(ns, cmd, finalOptions, responseType);
+        throwIfWriteConcernError(res);
+        return res;
+      } catch (commandError) {
+        throw this.decorateCommandError(conn, cmd, finalOptions, commandError);
+      }
+    } catch (operationError) {
+      if (
+        operationError instanceof MongoError &&
+        operationError.code === MONGODB_ERROR_CODES.Reauthenticate
+      ) {
+        await this.pool.reauthenticate(conn);
+        try {
+          const res = await conn.command(ns, cmd, finalOptions, responseType);
+          throwIfWriteConcernError(res);
+          return res;
+        } catch (commandError) {
+          throw this.decorateCommandError(conn, cmd, finalOptions, commandError);
+        }
+      } else {
+        throw operationError;
+      }
+    } finally {
+      this.decrementOperationCount();
+      if (session?.pinnedConnection !== conn) {
+        this.pool.checkIn(conn);
+      }
+    }
+  }
+
+  /**
+   * Handle SDAM error
+   * @internal
+   */
+  handleError(error: AnyError, connection?: Connection) {
+    if (!(error instanceof MongoError)) {
+      return;
+    }
+
+    const isStaleError =
+      error.connectionGeneration && error.connectionGeneration < this.pool.generation;
+    if (isStaleError) {
+      return;
+    }
+
+    const isNetworkNonTimeoutError =
+      error instanceof MongoNetworkError && !(error instanceof MongoNetworkTimeoutError);
+    const isNetworkTimeoutBeforeHandshakeError = isNetworkErrorBeforeHandshake(error);
+    const isAuthHandshakeError = error.hasErrorLabel(MongoErrorLabel.HandshakeError);
+    if (isNetworkNonTimeoutError || isNetworkTimeoutBeforeHandshakeError || isAuthHandshakeError) {
+      // In load balanced mode we never mark the server as unknown and always
+      // clear for the specific service id.
+      if (!this.loadBalanced) {
+        error.addErrorLabel(MongoErrorLabel.ResetPool);
+        markServerUnknown(this, error);
+      } else if (connection) {
+        this.pool.clear({ serviceId: connection.serviceId });
+      }
+    } else {
+      if (isSDAMUnrecoverableError(error)) {
+        if (shouldHandleStateChangeError(this, error)) {
+          const shouldClearPool = maxWireVersion(this) <= 7 || isNodeShuttingDownError(error);
+          if (this.loadBalanced && connection && shouldClearPool) {
+            this.pool.clear({ serviceId: connection.serviceId });
+          }
+
+          if (!this.loadBalanced) {
+            if (shouldClearPool) {
+              error.addErrorLabel(MongoErrorLabel.ResetPool);
+            }
+            markServerUnknown(this, error);
+            process.nextTick(() => this.requestCheck());
+          }
+        }
+      }
+    }
+  }
+
+  /**
+   * Ensure that error is properly decorated and internal state is updated before throwing
+   * @internal
+   */
+  private decorateCommandError(
+    connection: Connection,
+    cmd: Document,
+    options: CommandOptions | GetMoreOptions | undefined,
+    error: unknown
+  ): Error {
+    if (typeof error !== 'object' || error == null || !('name' in error)) {
+      throw new MongoRuntimeError('An unexpected error type: ' + typeof error);
+    }
+
+    if (error.name === 'AbortError' && 'cause' in error && error.cause instanceof MongoError) {
+      error = error.cause;
+    }
+
+    if (!(error instanceof MongoError)) {
+      // Node.js or some other error we have not special handling for
+      return error as Error;
+    }
+
+    if (connectionIsStale(this.pool, connection)) {
+      return error;
+    }
+
+    const session = options?.session;
+    if (error instanceof MongoNetworkError) {
+      if (session && !session.hasEnded && session.serverSession) {
+        session.serverSession.isDirty = true;
+      }
+
+      // inActiveTransaction check handles commit and abort.
+      if (
+        inActiveTransaction(session, cmd) &&
+        !error.hasErrorLabel(MongoErrorLabel.TransientTransactionError)
+      ) {
+        error.addErrorLabel(MongoErrorLabel.TransientTransactionError);
+      }
+
+      if (
+        (isRetryableWritesEnabled(this.topology) || isTransactionCommand(cmd)) &&
+        supportsRetryableWrites(this) &&
+        !inActiveTransaction(session, cmd)
+      ) {
+        error.addErrorLabel(MongoErrorLabel.RetryableWriteError);
+      }
+    } else {
+      if (
+        (isRetryableWritesEnabled(this.topology) || isTransactionCommand(cmd)) &&
+        needsRetryableWriteLabel(error, maxWireVersion(this), this.description.type) &&
+        !inActiveTransaction(session, cmd)
+      ) {
+        error.addErrorLabel(MongoErrorLabel.RetryableWriteError);
+      }
+    }
+
+    if (
+      session &&
+      session.isPinned &&
+      error.hasErrorLabel(MongoErrorLabel.TransientTransactionError)
+    ) {
+      session.unpin({ force: true });
+    }
+
+    this.handleError(error, connection);
+
+    return error;
+  }
+
+  /**
+   * Decrement the operation count, returning the new count.
+   */
+  private decrementOperationCount(): number {
+    return (this.s.operationCount -= 1);
+  }
+
+  /**
+   * Increment the operation count, returning the new count.
+   */
+  private incrementOperationCount(): number {
+    return (this.s.operationCount += 1);
+  }
+}
+
+function markServerUnknown(server: Server, error?: MongoError) {
+  // Load balancer servers can never be marked unknown.
+  if (server.loadBalanced) {
+    return;
+  }
+
+  if (error instanceof MongoNetworkError && !(error instanceof MongoNetworkTimeoutError)) {
+    server.monitor?.reset();
+  }
+
+  server.emit(
+    Server.DESCRIPTION_RECEIVED,
+    new ServerDescription(server.description.hostAddress, undefined, { error })
+  );
+}
+
+function isPinnableCommand(cmd: Document, session?: ClientSession): boolean {
+  if (session) {
+    return (
+      session.inTransaction() ||
+      (session.transaction.isCommitted && 'commitTransaction' in cmd) ||
+      'aggregate' in cmd ||
+      'find' in cmd ||
+      'getMore' in cmd ||
+      'listCollections' in cmd ||
+      'listIndexes' in cmd ||
+      'bulkWrite' in cmd
+    );
+  }
+
+  return false;
+}
+
+function connectionIsStale(pool: ConnectionPool, connection: Connection) {
+  if (connection.serviceId) {
+    return (
+      connection.generation !== pool.serviceGenerations.get(connection.serviceId.toHexString())
+    );
+  }
+
+  return connection.generation !== pool.generation;
+}
+
+function shouldHandleStateChangeError(server: Server, err: MongoError) {
+  const etv = err.topologyVersion;
+  const stv = server.description.topologyVersion;
+  return compareTopologyVersion(stv, etv) < 0;
+}
+
+function inActiveTransaction(session: ClientSession | undefined, cmd: Document) {
+  return session && session.inTransaction() && !isTransactionCommand(cmd);
+}
+
+/** this checks the retryWrites option passed down from the client options, it
+ * does not check if the server supports retryable writes */
+function isRetryableWritesEnabled(topology: Topology) {
+  return topology.s.options.retryWrites !== false;
+}
diff --git a/backend/node_modules/mongodb/src/sdam/server_description.ts b/backend/node_modules/mongodb/src/sdam/server_description.ts
new file mode 100644
index 0000000..903baef
--- /dev/null
+++ b/backend/node_modules/mongodb/src/sdam/server_description.ts
@@ -0,0 +1,291 @@
+import { type Document, Long, type ObjectId } from '../bson';
+import { type MongoError, MongoRuntimeError } from '../error';
+import { arrayStrictEqual, compareObjectId, errorStrictEqual, HostAddress, now } from '../utils';
+import { type ClusterTime, ServerType } from './common';
+
+const WRITABLE_SERVER_TYPES = new Set<ServerType>([
+  ServerType.RSPrimary,
+  ServerType.Standalone,
+  ServerType.Mongos,
+  ServerType.LoadBalancer
+]);
+
+const DATA_BEARING_SERVER_TYPES = new Set<ServerType>([
+  ServerType.RSPrimary,
+  ServerType.RSSecondary,
+  ServerType.Mongos,
+  ServerType.Standalone,
+  ServerType.LoadBalancer
+]);
+
+/** @public */
+export interface TopologyVersion {
+  processId: ObjectId;
+  counter: Long;
+}
+
+/** @public */
+export type TagSet = { [key: string]: string };
+
+/** @internal */
+export interface ServerDescriptionOptions {
+  /** An Error used for better reporting debugging */
+  error?: MongoError;
+
+  /** The average round trip time to ping this server (in ms) */
+  roundTripTime?: number;
+  /** The minimum round trip time to ping this server over the past 10 samples(in ms) */
+  minRoundTripTime?: number;
+
+  /** If the client is in load balancing mode. */
+  loadBalanced?: boolean;
+}
+
+/**
+ * The client's view of a single server, based on the most recent hello outcome.
+ *
+ * Internal type, not meant to be directly instantiated
+ * @public
+ */
+export class ServerDescription {
+  address: string;
+  type: ServerType;
+  hosts: string[];
+  passives: string[];
+  arbiters: string[];
+  tags: TagSet;
+  error: MongoError | null;
+  topologyVersion: TopologyVersion | null;
+  minWireVersion: number;
+  maxWireVersion: number;
+  roundTripTime: number;
+  /** The minimum measurement of the last 10 measurements of roundTripTime that have been collected */
+  minRoundTripTime: number;
+  lastUpdateTime: number;
+  lastWriteDate: number;
+  me: string | null;
+  primary: string | null;
+  setName: string | null;
+  setVersion: number | null;
+  electionId: ObjectId | null;
+  logicalSessionTimeoutMinutes: number | null;
+  /** The max message size in bytes for the server. */
+  maxMessageSizeBytes: number | null;
+  /** The max number of writes in a bulk write command. */
+  maxWriteBatchSize: number | null;
+  /** The max bson object size. */
+  maxBsonObjectSize: number | null;
+  /** Indicates server is a mongocryptd instance. */
+  iscryptd: boolean;
+
+  // NOTE: does this belong here? It seems we should gossip the cluster time at the CMAP level
+  $clusterTime?: ClusterTime;
+
+  /**
+   * Create a ServerDescription
+   * @internal
+   *
+   * @param address - The address of the server
+   * @param hello - An optional hello response for this server
+   */
+  constructor(
+    address: HostAddress | string,
+    hello?: Document,
+    options: ServerDescriptionOptions = {}
+  ) {
+    if (address == null || address === '') {
+      throw new MongoRuntimeError('ServerDescription must be provided with a non-empty address');
+    }
+
+    this.address =
+      typeof address === 'string'
+        ? HostAddress.fromString(address).toString() // Use HostAddress to normalize
+        : address.toString();
+    this.type = parseServerType(hello, options);
+    this.hosts = hello?.hosts?.map((host: string) => host.toLowerCase()) ?? [];
+    this.passives = hello?.passives?.map((host: string) => host.toLowerCase()) ?? [];
+    this.arbiters = hello?.arbiters?.map((host: string) => host.toLowerCase()) ?? [];
+    this.tags = hello?.tags ?? {};
+    this.minWireVersion = hello?.minWireVersion ?? 0;
+    this.maxWireVersion = hello?.maxWireVersion ?? 0;
+    this.roundTripTime = options?.roundTripTime ?? -1;
+    this.minRoundTripTime = options?.minRoundTripTime ?? 0;
+    this.lastUpdateTime = now();
+    this.lastWriteDate = hello?.lastWrite?.lastWriteDate ?? 0;
+    // NOTE: This actually builds the stack string instead of holding onto the getter and all its
+    // associated references. This is done to prevent a memory leak.
+    this.error = options.error ?? null;
+    this.error?.stack;
+    // TODO(NODE-2674): Preserve int64 sent from MongoDB
+    this.topologyVersion = this.error?.topologyVersion ?? hello?.topologyVersion ?? null;
+    this.setName = hello?.setName ?? null;
+    this.setVersion = hello?.setVersion ?? null;
+    this.electionId = hello?.electionId ?? null;
+    this.logicalSessionTimeoutMinutes = hello?.logicalSessionTimeoutMinutes ?? null;
+    this.maxMessageSizeBytes = hello?.maxMessageSizeBytes ?? null;
+    this.maxWriteBatchSize = hello?.maxWriteBatchSize ?? null;
+    this.maxBsonObjectSize = hello?.maxBsonObjectSize ?? null;
+    this.primary = hello?.primary ?? null;
+    this.me = hello?.me?.toLowerCase() ?? null;
+    this.$clusterTime = hello?.$clusterTime ?? null;
+    this.iscryptd = Boolean(hello?.iscryptd);
+  }
+
+  get hostAddress(): HostAddress {
+    return HostAddress.fromString(this.address);
+  }
+
+  get allHosts(): string[] {
+    return this.hosts.concat(this.arbiters).concat(this.passives);
+  }
+
+  /** Is this server available for reads*/
+  get isReadable(): boolean {
+    return this.type === ServerType.RSSecondary || this.isWritable;
+  }
+
+  /** Is this server data bearing */
+  get isDataBearing(): boolean {
+    return DATA_BEARING_SERVER_TYPES.has(this.type);
+  }
+
+  /** Is this server available for writes */
+  get isWritable(): boolean {
+    return WRITABLE_SERVER_TYPES.has(this.type);
+  }
+
+  get host(): string {
+    const chopLength = `:${this.port}`.length;
+    return this.address.slice(0, -chopLength);
+  }
+
+  get port(): number {
+    const port = this.address.split(':').pop();
+    return port ? Number.parseInt(port, 10) : 27017;
+  }
+
+  /**
+   * Determines if another `ServerDescription` is equal to this one per the rules defined in the SDAM specification.
+   * @see https://github.com/mongodb/specifications/blob/master/source/server-discovery-and-monitoring/server-discovery-and-monitoring.md
+   */
+  equals(other?: ServerDescription | null): boolean {
+    // Despite using the comparator that would determine a nullish topologyVersion as greater than
+    // for equality we should only always perform direct equality comparison
+    const topologyVersionsEqual =
+      this.topologyVersion === other?.topologyVersion ||
+      compareTopologyVersion(this.topologyVersion, other?.topologyVersion) === 0;
+
+    const electionIdsEqual =
+      this.electionId != null && other?.electionId != null
+        ? compareObjectId(this.electionId, other.electionId) === 0
+        : this.electionId === other?.electionId;
+
+    return (
+      other != null &&
+      other.iscryptd === this.iscryptd &&
+      errorStrictEqual(this.error, other.error) &&
+      this.type === other.type &&
+      this.minWireVersion === other.minWireVersion &&
+      arrayStrictEqual(this.hosts, other.hosts) &&
+      tagsStrictEqual(this.tags, other.tags) &&
+      this.setName === other.setName &&
+      this.setVersion === other.setVersion &&
+      electionIdsEqual &&
+      this.primary === other.primary &&
+      this.logicalSessionTimeoutMinutes === other.logicalSessionTimeoutMinutes &&
+      topologyVersionsEqual
+    );
+  }
+}
+
+// Parses a `hello` message and determines the server type
+export function parseServerType(hello?: Document, options?: ServerDescriptionOptions): ServerType {
+  if (options?.loadBalanced) {
+    return ServerType.LoadBalancer;
+  }
+
+  if (!hello || !hello.ok) {
+    return ServerType.Unknown;
+  }
+
+  if (hello.isreplicaset) {
+    return ServerType.RSGhost;
+  }
+
+  if (hello.msg && hello.msg === 'isdbgrid') {
+    return ServerType.Mongos;
+  }
+
+  if (hello.setName) {
+    if (hello.hidden) {
+      return ServerType.RSOther;
+    } else if (hello.isWritablePrimary) {
+      return ServerType.RSPrimary;
+    } else if (hello.secondary) {
+      return ServerType.RSSecondary;
+    } else if (hello.arbiterOnly) {
+      return ServerType.RSArbiter;
+    } else {
+      return ServerType.RSOther;
+    }
+  }
+
+  return ServerType.Standalone;
+}
+
+function tagsStrictEqual(tags: TagSet, tags2: TagSet): boolean {
+  const tagsKeys = Object.keys(tags);
+  const tags2Keys = Object.keys(tags2);
+
+  return (
+    tagsKeys.length === tags2Keys.length &&
+    tagsKeys.every((key: string) => tags2[key] === tags[key])
+  );
+}
+
+/**
+ * Compares two topology versions.
+ *
+ * 1. If the response topologyVersion is unset or the ServerDescription's
+ *    topologyVersion is null, the client MUST assume the response is more recent.
+ * 1. If the response's topologyVersion.processId is not equal to the
+ *    ServerDescription's, the client MUST assume the response is more recent.
+ * 1. If the response's topologyVersion.processId is equal to the
+ *    ServerDescription's, the client MUST use the counter field to determine
+ *    which topologyVersion is more recent.
+ *
+ * ```ts
+ * currentTv <   newTv === -1
+ * currentTv === newTv === 0
+ * currentTv >   newTv === 1
+ * ```
+ */
+export function compareTopologyVersion(
+  currentTv?: TopologyVersion | null,
+  newTv?: TopologyVersion | null
+): 0 | -1 | 1 {
+  if (currentTv == null || newTv == null) {
+    return -1;
+  }
+
+  if (!currentTv.processId.equals(newTv.processId)) {
+    return -1;
+  }
+
+  // TODO(NODE-2674): Preserve int64 sent from MongoDB
+  const currentCounter =
+    typeof currentTv.counter === 'bigint'
+      ? Long.fromBigInt(currentTv.counter)
+      : Long.isLong(currentTv.counter)
+        ? currentTv.counter
+        : Long.fromNumber(currentTv.counter);
+
+  const newCounter =
+    typeof newTv.counter === 'bigint'
+      ? Long.fromBigInt(newTv.counter)
+      : Long.isLong(newTv.counter)
+        ? newTv.counter
+        : Long.fromNumber(newTv.counter);
+
+  return currentCounter.compare(newCounter);
+}
diff --git a/backend/node_modules/mongodb/src/sdam/server_selection.ts b/backend/node_modules/mongodb/src/sdam/server_selection.ts
new file mode 100644
index 0000000..409ef64
--- /dev/null
+++ b/backend/node_modules/mongodb/src/sdam/server_selection.ts
@@ -0,0 +1,334 @@
+import { MongoCompatibilityError, MongoInvalidArgumentError } from '../error';
+import { ReadPreference } from '../read_preference';
+import { ServerType, TopologyType } from './common';
+import type { ServerDescription, TagSet } from './server_description';
+import type { TopologyDescription } from './topology_description';
+
+// max staleness constants
+const IDLE_WRITE_PERIOD = 10000;
+const SMALLEST_MAX_STALENESS_SECONDS = 90;
+
+//  Minimum version to try writes on secondaries.
+export const MIN_SECONDARY_WRITE_WIRE_VERSION = 13;
+
+/** @internal */
+export type ServerSelector = (
+  topologyDescription: TopologyDescription,
+  servers: ServerDescription[],
+  deprioritized?: ServerDescription[]
+) => ServerDescription[];
+
+/**
+ * Returns a server selector that selects for writable servers
+ */
+export function writableServerSelector(): ServerSelector {
+  return function writableServer(
+    topologyDescription: TopologyDescription,
+    servers: ServerDescription[]
+  ): ServerDescription[] {
+    return latencyWindowReducer(
+      topologyDescription,
+      servers.filter((s: ServerDescription) => s.isWritable)
+    );
+  };
+}
+
+/**
+ * The purpose of this selector is to select the same server, only
+ * if it is in a state that it can have commands sent to it.
+ */
+export function sameServerSelector(description?: ServerDescription): ServerSelector {
+  return function sameServerSelector(
+    topologyDescription: TopologyDescription,
+    servers: ServerDescription[]
+  ): ServerDescription[] {
+    if (!description) return [];
+    // Filter the servers to match the provided description only if
+    // the type is not unknown.
+    return servers.filter(sd => {
+      return sd.address === description.address && sd.type !== ServerType.Unknown;
+    });
+  };
+}
+
+/**
+ * Returns a server selector that uses a read preference to select a
+ * server potentially for a write on a secondary.
+ */
+export function secondaryWritableServerSelector(
+  wireVersion?: number,
+  readPreference?: ReadPreference
+): ServerSelector {
+  // If server version < 5.0, read preference always primary.
+  // If server version >= 5.0...
+  // - If read preference is supplied, use that.
+  // - If no read preference is supplied, use primary.
+  if (
+    !readPreference ||
+    !wireVersion ||
+    (wireVersion && wireVersion < MIN_SECONDARY_WRITE_WIRE_VERSION)
+  ) {
+    return readPreferenceServerSelector(ReadPreference.primary);
+  }
+  return readPreferenceServerSelector(readPreference);
+}
+
+/**
+ * Reduces the passed in array of servers by the rules of the "Max Staleness" specification
+ * found here:
+ *
+ * @see https://github.com/mongodb/specifications/blob/master/source/max-staleness/max-staleness.md
+ *
+ * @param readPreference - The read preference providing max staleness guidance
+ * @param topologyDescription - The topology description
+ * @param servers - The list of server descriptions to be reduced
+ * @returns The list of servers that satisfy the requirements of max staleness
+ */
+function maxStalenessReducer(
+  readPreference: ReadPreference,
+  topologyDescription: TopologyDescription,
+  servers: ServerDescription[]
+): ServerDescription[] {
+  if (readPreference.maxStalenessSeconds == null || readPreference.maxStalenessSeconds < 0) {
+    return servers;
+  }
+
+  const maxStaleness = readPreference.maxStalenessSeconds;
+  const maxStalenessVariance =
+    (topologyDescription.heartbeatFrequencyMS + IDLE_WRITE_PERIOD) / 1000;
+  if (maxStaleness < maxStalenessVariance) {
+    throw new MongoInvalidArgumentError(
+      `Option "maxStalenessSeconds" must be at least ${maxStalenessVariance} seconds`
+    );
+  }
+
+  if (maxStaleness < SMALLEST_MAX_STALENESS_SECONDS) {
+    throw new MongoInvalidArgumentError(
+      `Option "maxStalenessSeconds" must be at least ${SMALLEST_MAX_STALENESS_SECONDS} seconds`
+    );
+  }
+
+  if (topologyDescription.type === TopologyType.ReplicaSetWithPrimary) {
+    const primary: ServerDescription = Array.from(topologyDescription.servers.values()).filter(
+      primaryFilter
+    )[0];
+
+    return servers.reduce((result: ServerDescription[], server: ServerDescription) => {
+      const stalenessMS =
+        server.lastUpdateTime -
+        server.lastWriteDate -
+        (primary.lastUpdateTime - primary.lastWriteDate) +
+        topologyDescription.heartbeatFrequencyMS;
+
+      const staleness = stalenessMS / 1000;
+      const maxStalenessSeconds = readPreference.maxStalenessSeconds ?? 0;
+      if (staleness <= maxStalenessSeconds) {
+        result.push(server);
+      }
+
+      return result;
+    }, []);
+  }
+
+  if (topologyDescription.type === TopologyType.ReplicaSetNoPrimary) {
+    if (servers.length === 0) {
+      return servers;
+    }
+
+    const sMax = servers.reduce((max: ServerDescription, s: ServerDescription) =>
+      s.lastWriteDate > max.lastWriteDate ? s : max
+    );
+
+    return servers.reduce((result: ServerDescription[], server: ServerDescription) => {
+      const stalenessMS =
+        sMax.lastWriteDate - server.lastWriteDate + topologyDescription.heartbeatFrequencyMS;
+
+      const staleness = stalenessMS / 1000;
+      const maxStalenessSeconds = readPreference.maxStalenessSeconds ?? 0;
+      if (staleness <= maxStalenessSeconds) {
+        result.push(server);
+      }
+
+      return result;
+    }, []);
+  }
+
+  return servers;
+}
+
+/**
+ * Determines whether a server's tags match a given set of tags
+ *
+ * @param tagSet - The requested tag set to match
+ * @param serverTags - The server's tags
+ */
+function tagSetMatch(tagSet: TagSet, serverTags: TagSet) {
+  const keys = Object.keys(tagSet);
+  const serverTagKeys = Object.keys(serverTags);
+  for (let i = 0; i < keys.length; ++i) {
+    const key = keys[i];
+    if (serverTagKeys.indexOf(key) === -1 || serverTags[key] !== tagSet[key]) {
+      return false;
+    }
+  }
+
+  return true;
+}
+
+/**
+ * Reduces a set of server descriptions based on tags requested by the read preference
+ *
+ * @param readPreference - The read preference providing the requested tags
+ * @param servers - The list of server descriptions to reduce
+ * @returns The list of servers matching the requested tags
+ */
+function tagSetReducer(
+  readPreference: ReadPreference,
+  servers: ServerDescription[]
+): ServerDescription[] {
+  if (
+    readPreference.tags == null ||
+    (Array.isArray(readPreference.tags) && readPreference.tags.length === 0)
+  ) {
+    return servers;
+  }
+
+  for (let i = 0; i < readPreference.tags.length; ++i) {
+    const tagSet = readPreference.tags[i];
+    const serversMatchingTagset = servers.reduce(
+      (matched: ServerDescription[], server: ServerDescription) => {
+        if (tagSetMatch(tagSet, server.tags)) matched.push(server);
+        return matched;
+      },
+      []
+    );
+
+    if (serversMatchingTagset.length) {
+      return serversMatchingTagset;
+    }
+  }
+
+  return [];
+}
+
+/**
+ * Reduces a list of servers to ensure they fall within an acceptable latency window. This is
+ * further specified in the "Server Selection" specification, found here:
+ *
+ * @see https://github.com/mongodb/specifications/blob/master/source/server-selection/server-selection.md
+ *
+ * @param topologyDescription - The topology description
+ * @param servers - The list of servers to reduce
+ * @returns The servers which fall within an acceptable latency window
+ */
+function latencyWindowReducer(
+  topologyDescription: TopologyDescription,
+  servers: ServerDescription[]
+): ServerDescription[] {
+  const low = servers.reduce(
+    (min: number, server: ServerDescription) => Math.min(server.roundTripTime, min),
+    Infinity
+  );
+
+  const high = low + topologyDescription.localThresholdMS;
+  return servers.reduce((result: ServerDescription[], server: ServerDescription) => {
+    if (server.roundTripTime <= high && server.roundTripTime >= low) result.push(server);
+    return result;
+  }, []);
+}
+
+// filters
+function primaryFilter(server: ServerDescription): boolean {
+  return server.type === ServerType.RSPrimary;
+}
+
+function secondaryFilter(server: ServerDescription): boolean {
+  return server.type === ServerType.RSSecondary;
+}
+
+function nearestFilter(server: ServerDescription): boolean {
+  return server.type === ServerType.RSSecondary || server.type === ServerType.RSPrimary;
+}
+
+function knownFilter(server: ServerDescription): boolean {
+  return server.type !== ServerType.Unknown;
+}
+
+function loadBalancerFilter(server: ServerDescription): boolean {
+  return server.type === ServerType.LoadBalancer;
+}
+
+/**
+ * Returns a function which selects servers based on a provided read preference
+ *
+ * @param readPreference - The read preference to select with
+ */
+export function readPreferenceServerSelector(readPreference: ReadPreference): ServerSelector {
+  if (!readPreference.isValid()) {
+    throw new MongoInvalidArgumentError('Invalid read preference specified');
+  }
+
+  return function readPreferenceServers(
+    topologyDescription: TopologyDescription,
+    servers: ServerDescription[],
+    deprioritized: ServerDescription[] = []
+  ): ServerDescription[] {
+    const commonWireVersion = topologyDescription.commonWireVersion;
+    if (
+      commonWireVersion &&
+      readPreference.minWireVersion &&
+      readPreference.minWireVersion > commonWireVersion
+    ) {
+      throw new MongoCompatibilityError(
+        `Minimum wire version '${readPreference.minWireVersion}' required, but found '${commonWireVersion}'`
+      );
+    }
+
+    if (topologyDescription.type === TopologyType.LoadBalanced) {
+      return servers.filter(loadBalancerFilter);
+    }
+
+    if (topologyDescription.type === TopologyType.Unknown) {
+      return [];
+    }
+
+    if (topologyDescription.type === TopologyType.Single) {
+      return latencyWindowReducer(topologyDescription, servers.filter(knownFilter));
+    }
+
+    if (topologyDescription.type === TopologyType.Sharded) {
+      const filtered = servers.filter(server => {
+        return !deprioritized.includes(server);
+      });
+      const selectable = filtered.length > 0 ? filtered : deprioritized;
+      return latencyWindowReducer(topologyDescription, selectable.filter(knownFilter));
+    }
+
+    const mode = readPreference.mode;
+    if (mode === ReadPreference.PRIMARY) {
+      return servers.filter(primaryFilter);
+    }
+
+    if (mode === ReadPreference.PRIMARY_PREFERRED) {
+      const result = servers.filter(primaryFilter);
+      if (result.length) {
+        return result;
+      }
+    }
+
+    const filter = mode === ReadPreference.NEAREST ? nearestFilter : secondaryFilter;
+    const selectedServers = latencyWindowReducer(
+      topologyDescription,
+      tagSetReducer(
+        readPreference,
+        maxStalenessReducer(readPreference, topologyDescription, servers.filter(filter))
+      )
+    );
+
+    if (mode === ReadPreference.SECONDARY_PREFERRED && selectedServers.length === 0) {
+      return servers.filter(primaryFilter);
+    }
+
+    return selectedServers;
+  };
+}
diff --git a/backend/node_modules/mongodb/src/sdam/server_selection_events.ts b/backend/node_modules/mongodb/src/sdam/server_selection_events.ts
new file mode 100644
index 0000000..9b17166
--- /dev/null
+++ b/backend/node_modules/mongodb/src/sdam/server_selection_events.ts
@@ -0,0 +1,142 @@
+import { HostAddress } from '.././utils';
+import {
+  SERVER_SELECTION_FAILED,
+  SERVER_SELECTION_STARTED,
+  SERVER_SELECTION_SUCCEEDED,
+  WAITING_FOR_SUITABLE_SERVER
+} from '../constants';
+import { type ReadPreference } from '../read_preference';
+import { type ServerSelector } from './server_selection';
+import type { TopologyDescription } from './topology_description';
+
+/**
+ * The base export class for all logs published from server selection
+ * @internal
+ * @category Log Type
+ */
+export abstract class ServerSelectionEvent {
+  /** String representation of the selector being used to select the server.
+   *  Defaults to 'custom selector' for application-provided custom selector case.
+   */
+  selector: string | ReadPreference | ServerSelector;
+  /** The name of the operation for which a server is being selected.  */
+  operation: string;
+  /** 	The current topology description.  */
+  topologyDescription: TopologyDescription;
+
+  /** @internal */
+  abstract name:
+    | typeof SERVER_SELECTION_STARTED
+    | typeof SERVER_SELECTION_SUCCEEDED
+    | typeof SERVER_SELECTION_FAILED
+    | typeof WAITING_FOR_SUITABLE_SERVER;
+
+  abstract message: string;
+
+  /** @internal */
+  constructor(
+    selector: string | ReadPreference | ServerSelector,
+    topologyDescription: TopologyDescription,
+    operation: string
+  ) {
+    this.selector = selector;
+    this.operation = operation;
+    this.topologyDescription = topologyDescription;
+  }
+}
+
+/**
+ * An event published when server selection starts
+ * @internal
+ * @category Event
+ */
+export class ServerSelectionStartedEvent extends ServerSelectionEvent {
+  /** @internal */
+  name = SERVER_SELECTION_STARTED;
+  message = 'Server selection started';
+
+  /** @internal */
+  constructor(
+    selector: string | ReadPreference | ServerSelector,
+    topologyDescription: TopologyDescription,
+    operation: string
+  ) {
+    super(selector, topologyDescription, operation);
+  }
+}
+
+/**
+ * An event published when a server selection fails
+ * @internal
+ * @category Event
+ */
+export class ServerSelectionFailedEvent extends ServerSelectionEvent {
+  /** @internal */
+  name = SERVER_SELECTION_FAILED;
+  message = 'Server selection failed';
+  /** Representation of the error the driver will throw regarding server selection failing. */
+  failure: Error;
+
+  /** @internal */
+  constructor(
+    selector: string | ReadPreference | ServerSelector,
+    topologyDescription: TopologyDescription,
+    error: Error,
+    operation: string
+  ) {
+    super(selector, topologyDescription, operation);
+    this.failure = error;
+  }
+}
+
+/**
+ * An event published when server selection succeeds
+ * @internal
+ * @category Event
+ */
+export class ServerSelectionSucceededEvent extends ServerSelectionEvent {
+  /** @internal */
+  name = SERVER_SELECTION_SUCCEEDED;
+  message = 'Server selection succeeded';
+  /** 	The hostname, IP address, or Unix domain socket path for the selected server. */
+  serverHost: string;
+  /** The port for the selected server. Optional; not present for Unix domain sockets. When the user does not specify a port and the default (27017) is used, the driver SHOULD include it here. */
+  serverPort: number | undefined;
+
+  /** @internal */
+  constructor(
+    selector: string | ReadPreference | ServerSelector,
+    topologyDescription: TopologyDescription,
+    address: string,
+    operation: string
+  ) {
+    super(selector, topologyDescription, operation);
+    const { host, port } = HostAddress.fromString(address).toHostPort();
+    this.serverHost = host;
+    this.serverPort = port;
+  }
+}
+
+/**
+ * An event published when server selection is waiting for a suitable server to become available
+ * @internal
+ * @category Event
+ */
+export class WaitingForSuitableServerEvent extends ServerSelectionEvent {
+  /** @internal */
+  name = WAITING_FOR_SUITABLE_SERVER;
+  message = 'Waiting for suitable server to become available';
+  /** The remaining time left until server selection will time out. */
+  remainingTimeMS: number;
+
+  /** @internal */
+  constructor(
+    selector: string | ReadPreference | ServerSelector,
+    topologyDescription: TopologyDescription,
+    remainingTimeMS: number,
+    operation: string
+  ) {
+    super(selector, topologyDescription, operation);
+    this.remainingTimeMS = remainingTimeMS;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/sdam/srv_polling.ts b/backend/node_modules/mongodb/src/sdam/srv_polling.ts
new file mode 100644
index 0000000..c95c386
--- /dev/null
+++ b/backend/node_modules/mongodb/src/sdam/srv_polling.ts
@@ -0,0 +1,145 @@
+import * as dns from 'dns';
+import { clearTimeout, setTimeout } from 'timers';
+
+import { MongoRuntimeError } from '../error';
+import { TypedEventEmitter } from '../mongo_types';
+import { checkParentDomainMatch, HostAddress, squashError } from '../utils';
+
+/**
+ * @internal
+ * @category Event
+ */
+export class SrvPollingEvent {
+  srvRecords: dns.SrvRecord[];
+  constructor(srvRecords: dns.SrvRecord[]) {
+    this.srvRecords = srvRecords;
+  }
+
+  hostnames(): Set<string> {
+    return new Set(this.srvRecords.map(r => HostAddress.fromSrvRecord(r).toString()));
+  }
+}
+
+/** @internal */
+export interface SrvPollerOptions {
+  srvServiceName: string;
+  srvMaxHosts: number;
+  srvHost: string;
+  heartbeatFrequencyMS: number;
+}
+
+/** @internal */
+export type SrvPollerEvents = {
+  srvRecordDiscovery(event: SrvPollingEvent): void;
+};
+
+/** @internal */
+export class SrvPoller extends TypedEventEmitter<SrvPollerEvents> {
+  srvHost: string;
+  rescanSrvIntervalMS: number;
+  heartbeatFrequencyMS: number;
+  haMode: boolean;
+  generation: number;
+  srvMaxHosts: number;
+  srvServiceName: string;
+  _timeout?: NodeJS.Timeout;
+
+  /** @event */
+  static readonly SRV_RECORD_DISCOVERY = 'srvRecordDiscovery' as const;
+
+  constructor(options: SrvPollerOptions) {
+    super();
+
+    if (!options || !options.srvHost) {
+      throw new MongoRuntimeError('Options for SrvPoller must exist and include srvHost');
+    }
+
+    this.srvHost = options.srvHost;
+    this.srvMaxHosts = options.srvMaxHosts ?? 0;
+    this.srvServiceName = options.srvServiceName ?? 'mongodb';
+    this.rescanSrvIntervalMS = 60000;
+    this.heartbeatFrequencyMS = options.heartbeatFrequencyMS ?? 10000;
+
+    this.haMode = false;
+    this.generation = 0;
+
+    this._timeout = undefined;
+  }
+
+  get srvAddress(): string {
+    return `_${this.srvServiceName}._tcp.${this.srvHost}`;
+  }
+
+  get intervalMS(): number {
+    return this.haMode ? this.heartbeatFrequencyMS : this.rescanSrvIntervalMS;
+  }
+
+  start(): void {
+    if (!this._timeout) {
+      this.schedule();
+    }
+  }
+
+  stop(): void {
+    if (this._timeout) {
+      clearTimeout(this._timeout);
+      this.generation += 1;
+      this._timeout = undefined;
+    }
+  }
+
+  // TODO(NODE-4994): implement new logging logic for SrvPoller failures
+  schedule(): void {
+    if (this._timeout) {
+      clearTimeout(this._timeout);
+    }
+
+    this._timeout = setTimeout(() => {
+      this._poll().then(undefined, squashError);
+    }, this.intervalMS);
+  }
+
+  success(srvRecords: dns.SrvRecord[]): void {
+    this.haMode = false;
+    this.schedule();
+    this.emit(SrvPoller.SRV_RECORD_DISCOVERY, new SrvPollingEvent(srvRecords));
+  }
+
+  failure(): void {
+    this.haMode = true;
+    this.schedule();
+  }
+
+  async _poll(): Promise<void> {
+    const generation = this.generation;
+    let srvRecords;
+
+    try {
+      srvRecords = await dns.promises.resolveSrv(this.srvAddress);
+    } catch {
+      this.failure();
+      return;
+    }
+
+    if (generation !== this.generation) {
+      return;
+    }
+
+    const finalAddresses: dns.SrvRecord[] = [];
+    for (const record of srvRecords) {
+      try {
+        checkParentDomainMatch(record.name, this.srvHost);
+        finalAddresses.push(record);
+      } catch (error) {
+        squashError(error);
+      }
+    }
+
+    if (!finalAddresses.length) {
+      this.failure();
+      return;
+    }
+
+    this.success(finalAddresses);
+  }
+}
diff --git a/backend/node_modules/mongodb/src/sdam/topology.ts b/backend/node_modules/mongodb/src/sdam/topology.ts
new file mode 100644
index 0000000..fcfc05d
--- /dev/null
+++ b/backend/node_modules/mongodb/src/sdam/topology.ts
@@ -0,0 +1,1139 @@
+import type { BSONSerializeOptions, Document } from '../bson';
+import type { MongoCredentials } from '../cmap/auth/mongo_credentials';
+import type { ConnectionEvents } from '../cmap/connection';
+import type { ConnectionPoolEvents } from '../cmap/connection_pool';
+import type { ClientMetadata } from '../cmap/handshake/client_metadata';
+import { DEFAULT_OPTIONS, FEATURE_FLAGS } from '../connection_string';
+import {
+  CLOSE,
+  CONNECT,
+  ERROR,
+  LOCAL_SERVER_EVENTS,
+  OPEN,
+  SERVER_CLOSED,
+  SERVER_DESCRIPTION_CHANGED,
+  SERVER_OPENING,
+  SERVER_RELAY_EVENTS,
+  TIMEOUT,
+  TOPOLOGY_CLOSED,
+  TOPOLOGY_DESCRIPTION_CHANGED,
+  TOPOLOGY_OPENING
+} from '../constants';
+import {
+  MongoCompatibilityError,
+  type MongoDriverError,
+  MongoError,
+  MongoErrorLabel,
+  MongoOperationTimeoutError,
+  MongoRuntimeError,
+  MongoServerSelectionError,
+  MongoTopologyClosedError
+} from '../error';
+import type { MongoClient, ServerApi } from '../mongo_client';
+import { MongoLoggableComponent, type MongoLogger, SeverityLevel } from '../mongo_logger';
+import { TypedEventEmitter } from '../mongo_types';
+import { ReadPreference, type ReadPreferenceLike } from '../read_preference';
+import type { ClientSession } from '../sessions';
+import { Timeout, TimeoutContext, TimeoutError } from '../timeout';
+import type { Transaction } from '../transactions';
+import {
+  type Callback,
+  type EventEmitterWithState,
+  HostAddress,
+  List,
+  makeStateMachine,
+  now,
+  ns,
+  promiseWithResolvers,
+  shuffle
+} from '../utils';
+import {
+  _advanceClusterTime,
+  type ClusterTime,
+  ServerType,
+  STATE_CLOSED,
+  STATE_CLOSING,
+  STATE_CONNECTED,
+  STATE_CONNECTING,
+  TopologyType
+} from './common';
+import {
+  ServerClosedEvent,
+  ServerDescriptionChangedEvent,
+  ServerOpeningEvent,
+  TopologyClosedEvent,
+  TopologyDescriptionChangedEvent,
+  TopologyOpeningEvent
+} from './events';
+import type { ServerMonitoringMode } from './monitor';
+import { Server, type ServerEvents, type ServerOptions } from './server';
+import { compareTopologyVersion, ServerDescription } from './server_description';
+import { readPreferenceServerSelector, type ServerSelector } from './server_selection';
+import {
+  ServerSelectionFailedEvent,
+  ServerSelectionStartedEvent,
+  ServerSelectionSucceededEvent,
+  WaitingForSuitableServerEvent
+} from './server_selection_events';
+import { SrvPoller, type SrvPollingEvent } from './srv_polling';
+import { TopologyDescription } from './topology_description';
+
+// Global state
+let globalTopologyCounter = 0;
+
+const stateTransition = makeStateMachine({
+  [STATE_CLOSED]: [STATE_CLOSED, STATE_CONNECTING],
+  [STATE_CONNECTING]: [STATE_CONNECTING, STATE_CLOSING, STATE_CONNECTED, STATE_CLOSED],
+  [STATE_CONNECTED]: [STATE_CONNECTED, STATE_CLOSING, STATE_CLOSED],
+  [STATE_CLOSING]: [STATE_CLOSING, STATE_CLOSED]
+});
+
+/** @internal */
+const kCancelled = Symbol('cancelled');
+/** @internal */
+const kWaitQueue = Symbol('waitQueue');
+
+/** @internal */
+export type ServerSelectionCallback = Callback<Server>;
+
+/** @internal */
+export interface ServerSelectionRequest {
+  serverSelector: ServerSelector;
+  topologyDescription: TopologyDescription;
+  mongoLogger: MongoLogger | undefined;
+  transaction?: Transaction;
+  startTime: number;
+  resolve: (server: Server) => void;
+  reject: (error: MongoError) => void;
+  [kCancelled]?: boolean;
+  operationName: string;
+  waitingLogged: boolean;
+  previousServer?: ServerDescription;
+}
+
+/** @internal */
+export interface TopologyPrivate {
+  /** the id of this topology */
+  id: number;
+  /** passed in options */
+  options: TopologyOptions;
+  /** initial seedlist of servers to connect to */
+  seedlist: HostAddress[];
+  /** initial state */
+  state: string;
+  /** the topology description */
+  description: TopologyDescription;
+  serverSelectionTimeoutMS: number;
+  heartbeatFrequencyMS: number;
+  minHeartbeatFrequencyMS: number;
+  /** A map of server instances to normalized addresses */
+  servers: Map<string, Server>;
+  credentials?: MongoCredentials;
+  clusterTime?: ClusterTime;
+
+  /** related to srv polling */
+  srvPoller?: SrvPoller;
+  detectShardedTopology: (event: TopologyDescriptionChangedEvent) => void;
+  detectSrvRecords: (event: SrvPollingEvent) => void;
+}
+
+/** @internal */
+export interface TopologyOptions extends BSONSerializeOptions, ServerOptions {
+  srvMaxHosts: number;
+  srvServiceName: string;
+  hosts: HostAddress[];
+  retryWrites: boolean;
+  retryReads: boolean;
+  /** How long to block for server selection before throwing an error */
+  serverSelectionTimeoutMS: number;
+  /** The name of the replica set to connect to */
+  replicaSet?: string;
+  srvHost?: string;
+  srvPoller?: SrvPoller;
+  /** Indicates that a client should directly connect to a node without attempting to discover its topology type */
+  directConnection: boolean;
+  loadBalanced: boolean;
+  metadata: ClientMetadata;
+  extendedMetadata: Promise<Document>;
+  serverMonitoringMode: ServerMonitoringMode;
+  /** MongoDB server API version */
+  serverApi?: ServerApi;
+  [featureFlag: symbol]: any;
+}
+
+/** @public */
+export interface ConnectOptions {
+  readPreference?: ReadPreference;
+}
+
+/** @public */
+export interface SelectServerOptions {
+  readPreference?: ReadPreferenceLike;
+  /** How long to block for server selection before throwing an error */
+  serverSelectionTimeoutMS?: number;
+  session?: ClientSession;
+  operationName: string;
+  previousServer?: ServerDescription;
+  /**
+   * @internal
+   * TODO(NODE-6496): Make this required by making ChangeStream use LegacyTimeoutContext
+   * */
+  timeoutContext?: TimeoutContext;
+}
+
+/** @public */
+export type TopologyEvents = {
+  /** Top level MongoClient doesn't emit this so it is marked: @internal */
+  connect(topology: Topology): void;
+  serverOpening(event: ServerOpeningEvent): void;
+  serverClosed(event: ServerClosedEvent): void;
+  serverDescriptionChanged(event: ServerDescriptionChangedEvent): void;
+  topologyClosed(event: TopologyClosedEvent): void;
+  topologyOpening(event: TopologyOpeningEvent): void;
+  topologyDescriptionChanged(event: TopologyDescriptionChangedEvent): void;
+  error(error: Error): void;
+  /** @internal */
+  open(topology: Topology): void;
+  close(): void;
+  timeout(): void;
+} & Omit<ServerEvents, 'connect'> &
+  ConnectionPoolEvents &
+  ConnectionEvents &
+  EventEmitterWithState;
+/**
+ * A container of server instances representing a connection to a MongoDB topology.
+ * @internal
+ */
+export class Topology extends TypedEventEmitter<TopologyEvents> {
+  /** @internal */
+  s: TopologyPrivate;
+  /** @internal */
+  [kWaitQueue]: List<ServerSelectionRequest>;
+  /** @internal */
+  hello?: Document;
+  /** @internal */
+  _type?: string;
+
+  client!: MongoClient;
+
+  /** @internal */
+  private connectionLock?: Promise<Topology>;
+
+  /** @event */
+  static readonly SERVER_OPENING = SERVER_OPENING;
+  /** @event */
+  static readonly SERVER_CLOSED = SERVER_CLOSED;
+  /** @event */
+  static readonly SERVER_DESCRIPTION_CHANGED = SERVER_DESCRIPTION_CHANGED;
+  /** @event */
+  static readonly TOPOLOGY_OPENING = TOPOLOGY_OPENING;
+  /** @event */
+  static readonly TOPOLOGY_CLOSED = TOPOLOGY_CLOSED;
+  /** @event */
+  static readonly TOPOLOGY_DESCRIPTION_CHANGED = TOPOLOGY_DESCRIPTION_CHANGED;
+  /** @event */
+  static readonly ERROR = ERROR;
+  /** @event */
+  static readonly OPEN = OPEN;
+  /** @event */
+  static readonly CONNECT = CONNECT;
+  /** @event */
+  static readonly CLOSE = CLOSE;
+  /** @event */
+  static readonly TIMEOUT = TIMEOUT;
+
+  /**
+   * @param seedlist - a list of HostAddress instances to connect to
+   */
+  constructor(
+    client: MongoClient,
+    seeds: string | string[] | HostAddress | HostAddress[],
+    options: TopologyOptions
+  ) {
+    super();
+
+    this.client = client;
+    // Options should only be undefined in tests, MongoClient will always have defined options
+    options = options ?? {
+      hosts: [HostAddress.fromString('localhost:27017')],
+      ...Object.fromEntries(DEFAULT_OPTIONS.entries()),
+      ...Object.fromEntries(FEATURE_FLAGS.entries())
+    };
+
+    if (typeof seeds === 'string') {
+      seeds = [HostAddress.fromString(seeds)];
+    } else if (!Array.isArray(seeds)) {
+      seeds = [seeds];
+    }
+
+    const seedlist: HostAddress[] = [];
+    for (const seed of seeds) {
+      if (typeof seed === 'string') {
+        seedlist.push(HostAddress.fromString(seed));
+      } else if (seed instanceof HostAddress) {
+        seedlist.push(seed);
+      } else {
+        // FIXME(NODE-3483): May need to be a MongoParseError
+        throw new MongoRuntimeError(`Topology cannot be constructed from ${JSON.stringify(seed)}`);
+      }
+    }
+
+    const topologyType = topologyTypeFromOptions(options);
+    const topologyId = globalTopologyCounter++;
+
+    const selectedHosts =
+      options.srvMaxHosts == null ||
+      options.srvMaxHosts === 0 ||
+      options.srvMaxHosts >= seedlist.length
+        ? seedlist
+        : shuffle(seedlist, options.srvMaxHosts);
+
+    const serverDescriptions = new Map();
+    for (const hostAddress of selectedHosts) {
+      serverDescriptions.set(hostAddress.toString(), new ServerDescription(hostAddress));
+    }
+
+    this[kWaitQueue] = new List();
+    this.s = {
+      // the id of this topology
+      id: topologyId,
+      // passed in options
+      options,
+      // initial seedlist of servers to connect to
+      seedlist,
+      // initial state
+      state: STATE_CLOSED,
+      // the topology description
+      description: new TopologyDescription(
+        topologyType,
+        serverDescriptions,
+        options.replicaSet,
+        undefined,
+        undefined,
+        undefined,
+        options
+      ),
+      serverSelectionTimeoutMS: options.serverSelectionTimeoutMS,
+      heartbeatFrequencyMS: options.heartbeatFrequencyMS,
+      minHeartbeatFrequencyMS: options.minHeartbeatFrequencyMS,
+      // a map of server instances to normalized addresses
+      servers: new Map(),
+      credentials: options?.credentials,
+      clusterTime: undefined,
+
+      detectShardedTopology: ev => this.detectShardedTopology(ev),
+      detectSrvRecords: ev => this.detectSrvRecords(ev)
+    };
+
+    this.mongoLogger = client.mongoLogger;
+    this.component = 'topology';
+
+    if (options.srvHost && !options.loadBalanced) {
+      this.s.srvPoller =
+        options.srvPoller ??
+        new SrvPoller({
+          heartbeatFrequencyMS: this.s.heartbeatFrequencyMS,
+          srvHost: options.srvHost,
+          srvMaxHosts: options.srvMaxHosts,
+          srvServiceName: options.srvServiceName
+        });
+
+      this.on(Topology.TOPOLOGY_DESCRIPTION_CHANGED, this.s.detectShardedTopology);
+    }
+    this.connectionLock = undefined;
+  }
+
+  private detectShardedTopology(event: TopologyDescriptionChangedEvent) {
+    const previousType = event.previousDescription.type;
+    const newType = event.newDescription.type;
+
+    const transitionToSharded =
+      previousType !== TopologyType.Sharded && newType === TopologyType.Sharded;
+    const srvListeners = this.s.srvPoller?.listeners(SrvPoller.SRV_RECORD_DISCOVERY);
+    const listeningToSrvPolling = !!srvListeners?.includes(this.s.detectSrvRecords);
+
+    if (transitionToSharded && !listeningToSrvPolling) {
+      this.s.srvPoller?.on(SrvPoller.SRV_RECORD_DISCOVERY, this.s.detectSrvRecords);
+      this.s.srvPoller?.start();
+    }
+  }
+
+  private detectSrvRecords(ev: SrvPollingEvent) {
+    const previousTopologyDescription = this.s.description;
+    this.s.description = this.s.description.updateFromSrvPollingEvent(
+      ev,
+      this.s.options.srvMaxHosts
+    );
+    if (this.s.description === previousTopologyDescription) {
+      // Nothing changed, so return
+      return;
+    }
+
+    updateServers(this);
+
+    this.emitAndLog(
+      Topology.TOPOLOGY_DESCRIPTION_CHANGED,
+      new TopologyDescriptionChangedEvent(
+        this.s.id,
+        previousTopologyDescription,
+        this.s.description
+      )
+    );
+  }
+
+  /**
+   * @returns A `TopologyDescription` for this topology
+   */
+  get description(): TopologyDescription {
+    return this.s.description;
+  }
+
+  get loadBalanced(): boolean {
+    return this.s.options.loadBalanced;
+  }
+
+  get serverApi(): ServerApi | undefined {
+    return this.s.options.serverApi;
+  }
+
+  get capabilities(): ServerCapabilities {
+    return new ServerCapabilities(this.lastHello());
+  }
+
+  /** Initiate server connect */
+  async connect(options?: ConnectOptions): Promise<Topology> {
+    this.connectionLock ??= this._connect(options);
+    try {
+      await this.connectionLock;
+      return this;
+    } finally {
+      this.connectionLock = undefined;
+    }
+  }
+
+  private async _connect(options?: ConnectOptions): Promise<Topology> {
+    options = options ?? {};
+    if (this.s.state === STATE_CONNECTED) {
+      return this;
+    }
+
+    stateTransition(this, STATE_CONNECTING);
+
+    // emit SDAM monitoring events
+    this.emitAndLog(Topology.TOPOLOGY_OPENING, new TopologyOpeningEvent(this.s.id));
+
+    // emit an event for the topology change
+    this.emitAndLog(
+      Topology.TOPOLOGY_DESCRIPTION_CHANGED,
+      new TopologyDescriptionChangedEvent(
+        this.s.id,
+        new TopologyDescription(TopologyType.Unknown), // initial is always Unknown
+        this.s.description
+      )
+    );
+
+    // connect all known servers, then attempt server selection to connect
+    const serverDescriptions = Array.from(this.s.description.servers.values());
+    this.s.servers = new Map(
+      serverDescriptions.map(serverDescription => [
+        serverDescription.address,
+        createAndConnectServer(this, serverDescription)
+      ])
+    );
+
+    // In load balancer mode we need to fake a server description getting
+    // emitted from the monitor, since the monitor doesn't exist.
+    if (this.s.options.loadBalanced) {
+      for (const description of serverDescriptions) {
+        const newDescription = new ServerDescription(description.hostAddress, undefined, {
+          loadBalanced: this.s.options.loadBalanced
+        });
+        this.serverUpdateHandler(newDescription);
+      }
+    }
+
+    const serverSelectionTimeoutMS = this.client.s.options.serverSelectionTimeoutMS;
+    const readPreference = options.readPreference ?? ReadPreference.primary;
+    const timeoutContext = TimeoutContext.create({
+      // TODO(NODE-6448): auto-connect ignores timeoutMS; potential future feature
+      timeoutMS: undefined,
+      serverSelectionTimeoutMS,
+      waitQueueTimeoutMS: this.client.s.options.waitQueueTimeoutMS
+    });
+    const selectServerOptions = {
+      operationName: 'ping',
+      ...options,
+      timeoutContext
+    };
+
+    try {
+      const server = await this.selectServer(
+        readPreferenceServerSelector(readPreference),
+        selectServerOptions
+      );
+      const skipPingOnConnect = this.s.options[Symbol.for('@@mdb.skipPingOnConnect')] === true;
+      if (!skipPingOnConnect && this.s.credentials) {
+        await server.command(ns('admin.$cmd'), { ping: 1 }, { timeoutContext });
+        stateTransition(this, STATE_CONNECTED);
+        this.emit(Topology.OPEN, this);
+        this.emit(Topology.CONNECT, this);
+
+        return this;
+      }
+
+      stateTransition(this, STATE_CONNECTED);
+      this.emit(Topology.OPEN, this);
+      this.emit(Topology.CONNECT, this);
+
+      return this;
+    } catch (error) {
+      this.close();
+      throw error;
+    }
+  }
+
+  /** Close this topology */
+  close(): void {
+    if (this.s.state === STATE_CLOSED || this.s.state === STATE_CLOSING) {
+      return;
+    }
+
+    for (const server of this.s.servers.values()) {
+      destroyServer(server, this);
+    }
+
+    this.s.servers.clear();
+
+    stateTransition(this, STATE_CLOSING);
+
+    drainWaitQueue(this[kWaitQueue], new MongoTopologyClosedError());
+
+    if (this.s.srvPoller) {
+      this.s.srvPoller.stop();
+      this.s.srvPoller.removeListener(SrvPoller.SRV_RECORD_DISCOVERY, this.s.detectSrvRecords);
+    }
+
+    this.removeListener(Topology.TOPOLOGY_DESCRIPTION_CHANGED, this.s.detectShardedTopology);
+
+    stateTransition(this, STATE_CLOSED);
+
+    // emit an event for close
+    this.emitAndLog(Topology.TOPOLOGY_CLOSED, new TopologyClosedEvent(this.s.id));
+  }
+
+  /**
+   * Selects a server according to the selection predicate provided
+   *
+   * @param selector - An optional selector to select servers by, defaults to a random selection within a latency window
+   * @param options - Optional settings related to server selection
+   * @param callback - The callback used to indicate success or failure
+   * @returns An instance of a `Server` meeting the criteria of the predicate provided
+   */
+  async selectServer(
+    selector: string | ReadPreference | ServerSelector,
+    options: SelectServerOptions
+  ): Promise<Server> {
+    let serverSelector;
+    if (typeof selector !== 'function') {
+      if (typeof selector === 'string') {
+        serverSelector = readPreferenceServerSelector(ReadPreference.fromString(selector));
+      } else {
+        let readPreference;
+        if (selector instanceof ReadPreference) {
+          readPreference = selector;
+        } else {
+          ReadPreference.translate(options);
+          readPreference = options.readPreference || ReadPreference.primary;
+        }
+
+        serverSelector = readPreferenceServerSelector(readPreference as ReadPreference);
+      }
+    } else {
+      serverSelector = selector;
+    }
+
+    options = { serverSelectionTimeoutMS: this.s.serverSelectionTimeoutMS, ...options };
+    if (
+      this.client.mongoLogger?.willLog(MongoLoggableComponent.SERVER_SELECTION, SeverityLevel.DEBUG)
+    ) {
+      this.client.mongoLogger?.debug(
+        MongoLoggableComponent.SERVER_SELECTION,
+        new ServerSelectionStartedEvent(selector, this.description, options.operationName)
+      );
+    }
+    let timeout;
+    if (options.timeoutContext) timeout = options.timeoutContext.serverSelectionTimeout;
+    else {
+      timeout = Timeout.expires(options.serverSelectionTimeoutMS ?? 0);
+    }
+
+    const isSharded = this.description.type === TopologyType.Sharded;
+    const session = options.session;
+    const transaction = session && session.transaction;
+
+    if (isSharded && transaction && transaction.server) {
+      if (
+        this.client.mongoLogger?.willLog(
+          MongoLoggableComponent.SERVER_SELECTION,
+          SeverityLevel.DEBUG
+        )
+      ) {
+        this.client.mongoLogger?.debug(
+          MongoLoggableComponent.SERVER_SELECTION,
+          new ServerSelectionSucceededEvent(
+            selector,
+            this.description,
+            transaction.server.pool.address,
+            options.operationName
+          )
+        );
+      }
+      if (options.timeoutContext?.clearServerSelectionTimeout) timeout?.clear();
+      return transaction.server;
+    }
+
+    const { promise: serverPromise, resolve, reject } = promiseWithResolvers<Server>();
+
+    const waitQueueMember: ServerSelectionRequest = {
+      serverSelector,
+      topologyDescription: this.description,
+      mongoLogger: this.client.mongoLogger,
+      transaction,
+      resolve,
+      reject,
+      startTime: now(),
+      operationName: options.operationName,
+      waitingLogged: false,
+      previousServer: options.previousServer
+    };
+
+    this[kWaitQueue].push(waitQueueMember);
+    processWaitQueue(this);
+
+    try {
+      timeout?.throwIfExpired();
+      const server = await (timeout ? Promise.race([serverPromise, timeout]) : serverPromise);
+      if (options.timeoutContext?.csotEnabled() && server.description.minRoundTripTime !== 0) {
+        options.timeoutContext.minRoundTripTime = server.description.minRoundTripTime;
+      }
+      return server;
+    } catch (error) {
+      if (TimeoutError.is(error)) {
+        // Timeout
+        waitQueueMember[kCancelled] = true;
+        const timeoutError = new MongoServerSelectionError(
+          `Server selection timed out after ${timeout?.duration} ms`,
+          this.description
+        );
+        if (
+          this.client.mongoLogger?.willLog(
+            MongoLoggableComponent.SERVER_SELECTION,
+            SeverityLevel.DEBUG
+          )
+        ) {
+          this.client.mongoLogger?.debug(
+            MongoLoggableComponent.SERVER_SELECTION,
+            new ServerSelectionFailedEvent(
+              selector,
+              this.description,
+              timeoutError,
+              options.operationName
+            )
+          );
+        }
+
+        if (options.timeoutContext?.csotEnabled()) {
+          throw new MongoOperationTimeoutError('Timed out during server selection', {
+            cause: timeoutError
+          });
+        }
+        throw timeoutError;
+      }
+      // Other server selection error
+      throw error;
+    } finally {
+      if (options.timeoutContext?.clearServerSelectionTimeout) timeout?.clear();
+    }
+  }
+  /**
+   * Update the internal TopologyDescription with a ServerDescription
+   *
+   * @param serverDescription - The server to update in the internal list of server descriptions
+   */
+  serverUpdateHandler(serverDescription: ServerDescription): void {
+    if (!this.s.description.hasServer(serverDescription.address)) {
+      return;
+    }
+
+    // ignore this server update if its from an outdated topologyVersion
+    if (isStaleServerDescription(this.s.description, serverDescription)) {
+      return;
+    }
+
+    // these will be used for monitoring events later
+    const previousTopologyDescription = this.s.description;
+    const previousServerDescription = this.s.description.servers.get(serverDescription.address);
+    if (!previousServerDescription) {
+      return;
+    }
+
+    // Driver Sessions Spec: "Whenever a driver receives a cluster time from
+    // a server it MUST compare it to the current highest seen cluster time
+    // for the deployment. If the new cluster time is higher than the
+    // highest seen cluster time it MUST become the new highest seen cluster
+    // time. Two cluster times are compared using only the BsonTimestamp
+    // value of the clusterTime embedded field."
+    const clusterTime = serverDescription.$clusterTime;
+    if (clusterTime) {
+      _advanceClusterTime(this, clusterTime);
+    }
+
+    // If we already know all the information contained in this updated description, then
+    // we don't need to emit SDAM events, but still need to update the description, in order
+    // to keep client-tracked attributes like last update time and round trip time up to date
+    const equalDescriptions =
+      previousServerDescription && previousServerDescription.equals(serverDescription);
+
+    // first update the TopologyDescription
+    this.s.description = this.s.description.update(serverDescription);
+    if (this.s.description.compatibilityError) {
+      this.emit(Topology.ERROR, new MongoCompatibilityError(this.s.description.compatibilityError));
+      return;
+    }
+
+    // emit monitoring events for this change
+    if (!equalDescriptions) {
+      const newDescription = this.s.description.servers.get(serverDescription.address);
+      if (newDescription) {
+        this.emit(
+          Topology.SERVER_DESCRIPTION_CHANGED,
+          new ServerDescriptionChangedEvent(
+            this.s.id,
+            serverDescription.address,
+            previousServerDescription,
+            newDescription
+          )
+        );
+      }
+    }
+
+    // update server list from updated descriptions
+    updateServers(this, serverDescription);
+
+    // attempt to resolve any outstanding server selection attempts
+    if (this[kWaitQueue].length > 0) {
+      processWaitQueue(this);
+    }
+
+    if (!equalDescriptions) {
+      this.emitAndLog(
+        Topology.TOPOLOGY_DESCRIPTION_CHANGED,
+        new TopologyDescriptionChangedEvent(
+          this.s.id,
+          previousTopologyDescription,
+          this.s.description
+        )
+      );
+    }
+  }
+
+  auth(credentials?: MongoCredentials, callback?: Callback): void {
+    if (typeof credentials === 'function') (callback = credentials), (credentials = undefined);
+    if (typeof callback === 'function') callback(undefined, true);
+  }
+
+  get clientMetadata(): ClientMetadata {
+    return this.s.options.metadata;
+  }
+
+  isConnected(): boolean {
+    return this.s.state === STATE_CONNECTED;
+  }
+
+  isDestroyed(): boolean {
+    return this.s.state === STATE_CLOSED;
+  }
+
+  // NOTE: There are many places in code where we explicitly check the last hello
+  //       to do feature support detection. This should be done any other way, but for
+  //       now we will just return the first hello seen, which should suffice.
+  lastHello(): Document {
+    const serverDescriptions = Array.from(this.description.servers.values());
+    if (serverDescriptions.length === 0) return {};
+    const sd = serverDescriptions.filter(
+      (sd: ServerDescription) => sd.type !== ServerType.Unknown
+    )[0];
+
+    const result = sd || { maxWireVersion: this.description.commonWireVersion };
+    return result;
+  }
+
+  get commonWireVersion(): number | undefined {
+    return this.description.commonWireVersion;
+  }
+
+  get logicalSessionTimeoutMinutes(): number | null {
+    return this.description.logicalSessionTimeoutMinutes;
+  }
+
+  get clusterTime(): ClusterTime | undefined {
+    return this.s.clusterTime;
+  }
+
+  set clusterTime(clusterTime: ClusterTime | undefined) {
+    this.s.clusterTime = clusterTime;
+  }
+}
+
+/** Destroys a server, and removes all event listeners from the instance */
+function destroyServer(server: Server, topology: Topology) {
+  for (const event of LOCAL_SERVER_EVENTS) {
+    server.removeAllListeners(event);
+  }
+
+  server.destroy();
+  topology.emitAndLog(
+    Topology.SERVER_CLOSED,
+    new ServerClosedEvent(topology.s.id, server.description.address)
+  );
+
+  for (const event of SERVER_RELAY_EVENTS) {
+    server.removeAllListeners(event);
+  }
+}
+
+/** Predicts the TopologyType from options */
+function topologyTypeFromOptions(options?: TopologyOptions) {
+  if (options?.directConnection) {
+    return TopologyType.Single;
+  }
+
+  if (options?.replicaSet) {
+    return TopologyType.ReplicaSetNoPrimary;
+  }
+
+  if (options?.loadBalanced) {
+    return TopologyType.LoadBalanced;
+  }
+
+  return TopologyType.Unknown;
+}
+
+/**
+ * Creates new server instances and attempts to connect them
+ *
+ * @param topology - The topology that this server belongs to
+ * @param serverDescription - The description for the server to initialize and connect to
+ */
+function createAndConnectServer(topology: Topology, serverDescription: ServerDescription) {
+  topology.emitAndLog(
+    Topology.SERVER_OPENING,
+    new ServerOpeningEvent(topology.s.id, serverDescription.address)
+  );
+
+  const server = new Server(topology, serverDescription, topology.s.options);
+  for (const event of SERVER_RELAY_EVENTS) {
+    server.on(event, (e: any) => topology.emit(event, e));
+  }
+
+  server.on(Server.DESCRIPTION_RECEIVED, description => topology.serverUpdateHandler(description));
+
+  server.connect();
+  return server;
+}
+
+/**
+ * @param topology - Topology to update.
+ * @param incomingServerDescription - New server description.
+ */
+function updateServers(topology: Topology, incomingServerDescription?: ServerDescription) {
+  // update the internal server's description
+  if (incomingServerDescription && topology.s.servers.has(incomingServerDescription.address)) {
+    const server = topology.s.servers.get(incomingServerDescription.address);
+    if (server) {
+      server.s.description = incomingServerDescription;
+      if (
+        incomingServerDescription.error instanceof MongoError &&
+        incomingServerDescription.error.hasErrorLabel(MongoErrorLabel.ResetPool)
+      ) {
+        const interruptInUseConnections = incomingServerDescription.error.hasErrorLabel(
+          MongoErrorLabel.InterruptInUseConnections
+        );
+
+        server.pool.clear({ interruptInUseConnections });
+      } else if (incomingServerDescription.error == null) {
+        const newTopologyType = topology.s.description.type;
+        const shouldMarkPoolReady =
+          incomingServerDescription.isDataBearing ||
+          (incomingServerDescription.type !== ServerType.Unknown &&
+            newTopologyType === TopologyType.Single);
+        if (shouldMarkPoolReady) {
+          server.pool.ready();
+        }
+      }
+    }
+  }
+
+  // add new servers for all descriptions we currently don't know about locally
+  for (const serverDescription of topology.description.servers.values()) {
+    if (!topology.s.servers.has(serverDescription.address)) {
+      const server = createAndConnectServer(topology, serverDescription);
+      topology.s.servers.set(serverDescription.address, server);
+    }
+  }
+
+  // for all servers no longer known, remove their descriptions and destroy their instances
+  for (const entry of topology.s.servers) {
+    const serverAddress = entry[0];
+    if (topology.description.hasServer(serverAddress)) {
+      continue;
+    }
+
+    if (!topology.s.servers.has(serverAddress)) {
+      continue;
+    }
+
+    const server = topology.s.servers.get(serverAddress);
+    topology.s.servers.delete(serverAddress);
+
+    // prepare server for garbage collection
+    if (server) {
+      destroyServer(server, topology);
+    }
+  }
+}
+
+function drainWaitQueue(queue: List<ServerSelectionRequest>, drainError: MongoDriverError) {
+  while (queue.length) {
+    const waitQueueMember = queue.shift();
+    if (!waitQueueMember) {
+      continue;
+    }
+
+    if (!waitQueueMember[kCancelled]) {
+      if (
+        waitQueueMember.mongoLogger?.willLog(
+          MongoLoggableComponent.SERVER_SELECTION,
+          SeverityLevel.DEBUG
+        )
+      ) {
+        waitQueueMember.mongoLogger?.debug(
+          MongoLoggableComponent.SERVER_SELECTION,
+          new ServerSelectionFailedEvent(
+            waitQueueMember.serverSelector,
+            waitQueueMember.topologyDescription,
+            drainError,
+            waitQueueMember.operationName
+          )
+        );
+      }
+      waitQueueMember.reject(drainError);
+    }
+  }
+}
+
+function processWaitQueue(topology: Topology) {
+  if (topology.s.state === STATE_CLOSED) {
+    drainWaitQueue(topology[kWaitQueue], new MongoTopologyClosedError());
+    return;
+  }
+
+  const isSharded = topology.description.type === TopologyType.Sharded;
+  const serverDescriptions = Array.from(topology.description.servers.values());
+  const membersToProcess = topology[kWaitQueue].length;
+  for (let i = 0; i < membersToProcess; ++i) {
+    const waitQueueMember = topology[kWaitQueue].shift();
+    if (!waitQueueMember) {
+      continue;
+    }
+
+    if (waitQueueMember[kCancelled]) {
+      continue;
+    }
+
+    let selectedDescriptions;
+    try {
+      const serverSelector = waitQueueMember.serverSelector;
+      const previousServer = waitQueueMember.previousServer;
+      selectedDescriptions = serverSelector
+        ? serverSelector(
+            topology.description,
+            serverDescriptions,
+            previousServer ? [previousServer] : []
+          )
+        : serverDescriptions;
+    } catch (selectorError) {
+      if (
+        topology.client.mongoLogger?.willLog(
+          MongoLoggableComponent.SERVER_SELECTION,
+          SeverityLevel.DEBUG
+        )
+      ) {
+        topology.client.mongoLogger?.debug(
+          MongoLoggableComponent.SERVER_SELECTION,
+          new ServerSelectionFailedEvent(
+            waitQueueMember.serverSelector,
+            topology.description,
+            selectorError,
+            waitQueueMember.operationName
+          )
+        );
+      }
+      waitQueueMember.reject(selectorError);
+      continue;
+    }
+
+    let selectedServer: Server | undefined;
+    if (selectedDescriptions.length === 0) {
+      if (!waitQueueMember.waitingLogged) {
+        if (
+          topology.client.mongoLogger?.willLog(
+            MongoLoggableComponent.SERVER_SELECTION,
+            SeverityLevel.INFORMATIONAL
+          )
+        ) {
+          topology.client.mongoLogger?.info(
+            MongoLoggableComponent.SERVER_SELECTION,
+            new WaitingForSuitableServerEvent(
+              waitQueueMember.serverSelector,
+              topology.description,
+              topology.s.serverSelectionTimeoutMS !== 0
+                ? topology.s.serverSelectionTimeoutMS - (now() - waitQueueMember.startTime)
+                : -1,
+              waitQueueMember.operationName
+            )
+          );
+        }
+        waitQueueMember.waitingLogged = true;
+      }
+      topology[kWaitQueue].push(waitQueueMember);
+      continue;
+    } else if (selectedDescriptions.length === 1) {
+      selectedServer = topology.s.servers.get(selectedDescriptions[0].address);
+    } else {
+      const descriptions = shuffle(selectedDescriptions, 2);
+      const server1 = topology.s.servers.get(descriptions[0].address);
+      const server2 = topology.s.servers.get(descriptions[1].address);
+
+      selectedServer =
+        server1 && server2 && server1.s.operationCount < server2.s.operationCount
+          ? server1
+          : server2;
+    }
+
+    if (!selectedServer) {
+      const serverSelectionError = new MongoServerSelectionError(
+        'server selection returned a server description but the server was not found in the topology',
+        topology.description
+      );
+      if (
+        topology.client.mongoLogger?.willLog(
+          MongoLoggableComponent.SERVER_SELECTION,
+          SeverityLevel.DEBUG
+        )
+      ) {
+        topology.client.mongoLogger?.debug(
+          MongoLoggableComponent.SERVER_SELECTION,
+          new ServerSelectionFailedEvent(
+            waitQueueMember.serverSelector,
+            topology.description,
+            serverSelectionError,
+            waitQueueMember.operationName
+          )
+        );
+      }
+      waitQueueMember.reject(serverSelectionError);
+      return;
+    }
+    const transaction = waitQueueMember.transaction;
+    if (isSharded && transaction && transaction.isActive && selectedServer) {
+      transaction.pinServer(selectedServer);
+    }
+
+    if (
+      topology.client.mongoLogger?.willLog(
+        MongoLoggableComponent.SERVER_SELECTION,
+        SeverityLevel.DEBUG
+      )
+    ) {
+      topology.client.mongoLogger?.debug(
+        MongoLoggableComponent.SERVER_SELECTION,
+        new ServerSelectionSucceededEvent(
+          waitQueueMember.serverSelector,
+          waitQueueMember.topologyDescription,
+          selectedServer.pool.address,
+          waitQueueMember.operationName
+        )
+      );
+    }
+    waitQueueMember.resolve(selectedServer);
+  }
+
+  if (topology[kWaitQueue].length > 0) {
+    // ensure all server monitors attempt monitoring soon
+    for (const [, server] of topology.s.servers) {
+      process.nextTick(function scheduleServerCheck() {
+        return server.requestCheck();
+      });
+    }
+  }
+}
+
+function isStaleServerDescription(
+  topologyDescription: TopologyDescription,
+  incomingServerDescription: ServerDescription
+) {
+  const currentServerDescription = topologyDescription.servers.get(
+    incomingServerDescription.address
+  );
+  const currentTopologyVersion = currentServerDescription?.topologyVersion;
+  return (
+    compareTopologyVersion(currentTopologyVersion, incomingServerDescription.topologyVersion) > 0
+  );
+}
+
+/** @public */
+export class ServerCapabilities {
+  maxWireVersion: number;
+  minWireVersion: number;
+
+  constructor(hello: Document) {
+    this.minWireVersion = hello.minWireVersion || 0;
+    this.maxWireVersion = hello.maxWireVersion || 0;
+  }
+
+  get hasAggregationCursor(): boolean {
+    return this.maxWireVersion >= 1;
+  }
+
+  get hasWriteCommands(): boolean {
+    return this.maxWireVersion >= 2;
+  }
+  get hasTextSearch(): boolean {
+    return this.minWireVersion >= 0;
+  }
+
+  get hasAuthCommands(): boolean {
+    return this.maxWireVersion >= 1;
+  }
+
+  get hasListCollectionsCommand(): boolean {
+    return this.maxWireVersion >= 3;
+  }
+
+  get hasListIndexesCommand(): boolean {
+    return this.maxWireVersion >= 3;
+  }
+
+  get supportsSnapshotReads(): boolean {
+    return this.maxWireVersion >= 13;
+  }
+
+  get commandsTakeWriteConcern(): boolean {
+    return this.maxWireVersion >= 5;
+  }
+
+  get commandsTakeCollation(): boolean {
+    return this.maxWireVersion >= 5;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/sdam/topology_description.ts b/backend/node_modules/mongodb/src/sdam/topology_description.ts
new file mode 100644
index 0000000..d4f7af1
--- /dev/null
+++ b/backend/node_modules/mongodb/src/sdam/topology_description.ts
@@ -0,0 +1,529 @@
+import { EJSON, type ObjectId } from '../bson';
+import * as WIRE_CONSTANTS from '../cmap/wire_protocol/constants';
+import { type MongoError, MongoRuntimeError, MongoStalePrimaryError } from '../error';
+import { compareObjectId, shuffle } from '../utils';
+import { ServerType, TopologyType } from './common';
+import { ServerDescription } from './server_description';
+import type { SrvPollingEvent } from './srv_polling';
+
+// constants related to compatibility checks
+const MIN_SUPPORTED_SERVER_VERSION = WIRE_CONSTANTS.MIN_SUPPORTED_SERVER_VERSION;
+const MAX_SUPPORTED_SERVER_VERSION = WIRE_CONSTANTS.MAX_SUPPORTED_SERVER_VERSION;
+const MIN_SUPPORTED_WIRE_VERSION = WIRE_CONSTANTS.MIN_SUPPORTED_WIRE_VERSION;
+const MAX_SUPPORTED_WIRE_VERSION = WIRE_CONSTANTS.MAX_SUPPORTED_WIRE_VERSION;
+
+const MONGOS_OR_UNKNOWN = new Set<ServerType>([ServerType.Mongos, ServerType.Unknown]);
+const MONGOS_OR_STANDALONE = new Set<ServerType>([ServerType.Mongos, ServerType.Standalone]);
+const NON_PRIMARY_RS_MEMBERS = new Set<ServerType>([
+  ServerType.RSSecondary,
+  ServerType.RSArbiter,
+  ServerType.RSOther
+]);
+
+/** @public */
+export interface TopologyDescriptionOptions {
+  heartbeatFrequencyMS?: number;
+  localThresholdMS?: number;
+}
+
+/**
+ * Representation of a deployment of servers
+ * @public
+ */
+export class TopologyDescription {
+  type: TopologyType;
+  setName: string | null;
+  maxSetVersion: number | null;
+  maxElectionId: ObjectId | null;
+  servers: Map<string, ServerDescription>;
+  stale: boolean;
+  compatible: boolean;
+  compatibilityError?: string;
+  logicalSessionTimeoutMinutes: number | null;
+  heartbeatFrequencyMS: number;
+  localThresholdMS: number;
+  commonWireVersion: number;
+  /**
+   * Create a TopologyDescription
+   */
+  constructor(
+    topologyType: TopologyType,
+    serverDescriptions: Map<string, ServerDescription> | null = null,
+    setName: string | null = null,
+    maxSetVersion: number | null = null,
+    maxElectionId: ObjectId | null = null,
+    commonWireVersion: number | null = null,
+    options: TopologyDescriptionOptions | null = null
+  ) {
+    options = options ?? {};
+
+    this.type = topologyType ?? TopologyType.Unknown;
+    this.servers = serverDescriptions ?? new Map();
+    this.stale = false;
+    this.compatible = true;
+    this.heartbeatFrequencyMS = options.heartbeatFrequencyMS ?? 0;
+    this.localThresholdMS = options.localThresholdMS ?? 15;
+    this.setName = setName ?? null;
+    this.maxElectionId = maxElectionId ?? null;
+    this.maxSetVersion = maxSetVersion ?? null;
+    this.commonWireVersion = commonWireVersion ?? 0;
+
+    // determine server compatibility
+    for (const serverDescription of this.servers.values()) {
+      // Load balancer mode is always compatible.
+      if (
+        serverDescription.type === ServerType.Unknown ||
+        serverDescription.type === ServerType.LoadBalancer
+      ) {
+        continue;
+      }
+
+      if (serverDescription.minWireVersion > MAX_SUPPORTED_WIRE_VERSION) {
+        this.compatible = false;
+        this.compatibilityError = `Server at ${serverDescription.address} requires wire version ${serverDescription.minWireVersion}, but this version of the driver only supports up to ${MAX_SUPPORTED_WIRE_VERSION} (MongoDB ${MAX_SUPPORTED_SERVER_VERSION})`;
+      }
+
+      if (serverDescription.maxWireVersion < MIN_SUPPORTED_WIRE_VERSION) {
+        this.compatible = false;
+        this.compatibilityError = `Server at ${serverDescription.address} reports wire version ${serverDescription.maxWireVersion}, but this version of the driver requires at least ${MIN_SUPPORTED_WIRE_VERSION} (MongoDB ${MIN_SUPPORTED_SERVER_VERSION}).`;
+        break;
+      }
+    }
+
+    // Whenever a client updates the TopologyDescription from a hello response, it MUST set
+    // TopologyDescription.logicalSessionTimeoutMinutes to the smallest logicalSessionTimeoutMinutes
+    // value among ServerDescriptions of all data-bearing server types. If any have a null
+    // logicalSessionTimeoutMinutes, then TopologyDescription.logicalSessionTimeoutMinutes MUST be
+    // set to null.
+    this.logicalSessionTimeoutMinutes = null;
+    for (const [, server] of this.servers) {
+      if (server.isReadable) {
+        if (server.logicalSessionTimeoutMinutes == null) {
+          // If any of the servers have a null logicalSessionsTimeout, then the whole topology does
+          this.logicalSessionTimeoutMinutes = null;
+          break;
+        }
+
+        if (this.logicalSessionTimeoutMinutes == null) {
+          // First server with a non null logicalSessionsTimeout
+          this.logicalSessionTimeoutMinutes = server.logicalSessionTimeoutMinutes;
+          continue;
+        }
+
+        // Always select the smaller of the:
+        // current server logicalSessionsTimeout and the topologies logicalSessionsTimeout
+        this.logicalSessionTimeoutMinutes = Math.min(
+          this.logicalSessionTimeoutMinutes,
+          server.logicalSessionTimeoutMinutes
+        );
+      }
+    }
+  }
+
+  /**
+   * Returns a new TopologyDescription based on the SrvPollingEvent
+   * @internal
+   */
+  updateFromSrvPollingEvent(ev: SrvPollingEvent, srvMaxHosts = 0): TopologyDescription {
+    /** The SRV addresses defines the set of addresses we should be using */
+    const incomingHostnames = ev.hostnames();
+    const currentHostnames = new Set(this.servers.keys());
+
+    const hostnamesToAdd = new Set<string>(incomingHostnames);
+    const hostnamesToRemove = new Set<string>();
+    for (const hostname of currentHostnames) {
+      // filter hostnamesToAdd (made from incomingHostnames) down to what is *not* present in currentHostnames
+      hostnamesToAdd.delete(hostname);
+      if (!incomingHostnames.has(hostname)) {
+        // If the SRV Records no longer include this hostname
+        // we have to stop using it
+        hostnamesToRemove.add(hostname);
+      }
+    }
+
+    if (hostnamesToAdd.size === 0 && hostnamesToRemove.size === 0) {
+      // No new hosts to add and none to remove
+      return this;
+    }
+
+    const serverDescriptions = new Map(this.servers);
+    for (const removedHost of hostnamesToRemove) {
+      serverDescriptions.delete(removedHost);
+    }
+
+    if (hostnamesToAdd.size > 0) {
+      if (srvMaxHosts === 0) {
+        // Add all!
+        for (const hostToAdd of hostnamesToAdd) {
+          serverDescriptions.set(hostToAdd, new ServerDescription(hostToAdd));
+        }
+      } else if (serverDescriptions.size < srvMaxHosts) {
+        // Add only the amount needed to get us back to srvMaxHosts
+        const selectedHosts = shuffle(hostnamesToAdd, srvMaxHosts - serverDescriptions.size);
+        for (const selectedHostToAdd of selectedHosts) {
+          serverDescriptions.set(selectedHostToAdd, new ServerDescription(selectedHostToAdd));
+        }
+      }
+    }
+
+    return new TopologyDescription(
+      this.type,
+      serverDescriptions,
+      this.setName,
+      this.maxSetVersion,
+      this.maxElectionId,
+      this.commonWireVersion,
+      { heartbeatFrequencyMS: this.heartbeatFrequencyMS, localThresholdMS: this.localThresholdMS }
+    );
+  }
+
+  /**
+   * Returns a copy of this description updated with a given ServerDescription
+   * @internal
+   */
+  update(serverDescription: ServerDescription): TopologyDescription {
+    const address = serverDescription.address;
+
+    // potentially mutated values
+    let { type: topologyType, setName, maxSetVersion, maxElectionId, commonWireVersion } = this;
+
+    const serverType = serverDescription.type;
+    const serverDescriptions = new Map(this.servers);
+
+    // update common wire version
+    if (serverDescription.maxWireVersion !== 0) {
+      if (commonWireVersion == null) {
+        commonWireVersion = serverDescription.maxWireVersion;
+      } else {
+        commonWireVersion = Math.min(commonWireVersion, serverDescription.maxWireVersion);
+      }
+    }
+
+    if (
+      typeof serverDescription.setName === 'string' &&
+      typeof setName === 'string' &&
+      serverDescription.setName !== setName
+    ) {
+      if (topologyType === TopologyType.Single) {
+        // "Single" Topology with setName mismatch is direct connection usage, mark unknown do not remove
+        serverDescription = new ServerDescription(address);
+      } else {
+        serverDescriptions.delete(address);
+      }
+    }
+
+    // update the actual server description
+    serverDescriptions.set(address, serverDescription);
+
+    if (topologyType === TopologyType.Single) {
+      // once we are defined as single, that never changes
+      return new TopologyDescription(
+        TopologyType.Single,
+        serverDescriptions,
+        setName,
+        maxSetVersion,
+        maxElectionId,
+        commonWireVersion,
+        { heartbeatFrequencyMS: this.heartbeatFrequencyMS, localThresholdMS: this.localThresholdMS }
+      );
+    }
+
+    if (topologyType === TopologyType.Unknown) {
+      if (serverType === ServerType.Standalone && this.servers.size !== 1) {
+        serverDescriptions.delete(address);
+      } else {
+        topologyType = topologyTypeForServerType(serverType);
+      }
+    }
+
+    if (topologyType === TopologyType.Sharded) {
+      if (!MONGOS_OR_UNKNOWN.has(serverType)) {
+        serverDescriptions.delete(address);
+      }
+    }
+
+    if (topologyType === TopologyType.ReplicaSetNoPrimary) {
+      if (MONGOS_OR_STANDALONE.has(serverType)) {
+        serverDescriptions.delete(address);
+      }
+
+      if (serverType === ServerType.RSPrimary) {
+        const result = updateRsFromPrimary(
+          serverDescriptions,
+          serverDescription,
+          setName,
+          maxSetVersion,
+          maxElectionId
+        );
+
+        topologyType = result[0];
+        setName = result[1];
+        maxSetVersion = result[2];
+        maxElectionId = result[3];
+      } else if (NON_PRIMARY_RS_MEMBERS.has(serverType)) {
+        const result = updateRsNoPrimaryFromMember(serverDescriptions, serverDescription, setName);
+        topologyType = result[0];
+        setName = result[1];
+      }
+    }
+
+    if (topologyType === TopologyType.ReplicaSetWithPrimary) {
+      if (MONGOS_OR_STANDALONE.has(serverType)) {
+        serverDescriptions.delete(address);
+        topologyType = checkHasPrimary(serverDescriptions);
+      } else if (serverType === ServerType.RSPrimary) {
+        const result = updateRsFromPrimary(
+          serverDescriptions,
+          serverDescription,
+          setName,
+          maxSetVersion,
+          maxElectionId
+        );
+
+        topologyType = result[0];
+        setName = result[1];
+        maxSetVersion = result[2];
+        maxElectionId = result[3];
+      } else if (NON_PRIMARY_RS_MEMBERS.has(serverType)) {
+        topologyType = updateRsWithPrimaryFromMember(
+          serverDescriptions,
+          serverDescription,
+          setName
+        );
+      } else {
+        topologyType = checkHasPrimary(serverDescriptions);
+      }
+    }
+
+    return new TopologyDescription(
+      topologyType,
+      serverDescriptions,
+      setName,
+      maxSetVersion,
+      maxElectionId,
+      commonWireVersion,
+      { heartbeatFrequencyMS: this.heartbeatFrequencyMS, localThresholdMS: this.localThresholdMS }
+    );
+  }
+
+  get error(): MongoError | null {
+    const descriptionsWithError = Array.from(this.servers.values()).filter(
+      (sd: ServerDescription) => sd.error
+    );
+
+    if (descriptionsWithError.length > 0) {
+      return descriptionsWithError[0].error;
+    }
+
+    return null;
+  }
+
+  /**
+   * Determines if the topology description has any known servers
+   */
+  get hasKnownServers(): boolean {
+    return Array.from(this.servers.values()).some(
+      (sd: ServerDescription) => sd.type !== ServerType.Unknown
+    );
+  }
+
+  /**
+   * Determines if this topology description has a data-bearing server available.
+   */
+  get hasDataBearingServers(): boolean {
+    return Array.from(this.servers.values()).some((sd: ServerDescription) => sd.isDataBearing);
+  }
+
+  /**
+   * Determines if the topology has a definition for the provided address
+   * @internal
+   */
+  hasServer(address: string): boolean {
+    return this.servers.has(address);
+  }
+
+  /**
+   * Returns a JSON-serializable representation of the TopologyDescription.  This is primarily
+   * intended for use with JSON.stringify().
+   *
+   * This method will not throw.
+   */
+  toJSON() {
+    return EJSON.serialize(this);
+  }
+}
+
+function topologyTypeForServerType(serverType: ServerType): TopologyType {
+  switch (serverType) {
+    case ServerType.Standalone:
+      return TopologyType.Single;
+    case ServerType.Mongos:
+      return TopologyType.Sharded;
+    case ServerType.RSPrimary:
+      return TopologyType.ReplicaSetWithPrimary;
+    case ServerType.RSOther:
+    case ServerType.RSSecondary:
+      return TopologyType.ReplicaSetNoPrimary;
+    default:
+      return TopologyType.Unknown;
+  }
+}
+
+function updateRsFromPrimary(
+  serverDescriptions: Map<string, ServerDescription>,
+  serverDescription: ServerDescription,
+  setName: string | null = null,
+  maxSetVersion: number | null = null,
+  maxElectionId: ObjectId | null = null
+): [TopologyType, string | null, number | null, ObjectId | null] {
+  setName = setName || serverDescription.setName;
+  if (setName !== serverDescription.setName) {
+    serverDescriptions.delete(serverDescription.address);
+    return [checkHasPrimary(serverDescriptions), setName, maxSetVersion, maxElectionId];
+  }
+
+  if (serverDescription.maxWireVersion >= 17) {
+    const electionIdComparison = compareObjectId(maxElectionId, serverDescription.electionId);
+    const maxElectionIdIsEqual = electionIdComparison === 0;
+    const maxElectionIdIsLess = electionIdComparison === -1;
+    const maxSetVersionIsLessOrEqual =
+      (maxSetVersion ?? -1) <= (serverDescription.setVersion ?? -1);
+
+    if (maxElectionIdIsLess || (maxElectionIdIsEqual && maxSetVersionIsLessOrEqual)) {
+      // The reported electionId was greater
+      // or the electionId was equal and reported setVersion was greater
+      // Always update both values, they are a tuple
+      maxElectionId = serverDescription.electionId;
+      maxSetVersion = serverDescription.setVersion;
+    } else {
+      // Stale primary
+      // replace serverDescription with a default ServerDescription of type "Unknown"
+      serverDescriptions.set(
+        serverDescription.address,
+        new ServerDescription(serverDescription.address, undefined, {
+          error: new MongoStalePrimaryError(serverDescription, maxSetVersion, maxElectionId)
+        })
+      );
+
+      return [checkHasPrimary(serverDescriptions), setName, maxSetVersion, maxElectionId];
+    }
+  } else {
+    const electionId = serverDescription.electionId ? serverDescription.electionId : null;
+    if (serverDescription.setVersion && electionId) {
+      if (maxSetVersion && maxElectionId) {
+        if (
+          maxSetVersion > serverDescription.setVersion ||
+          compareObjectId(maxElectionId, electionId) > 0
+        ) {
+          // this primary is stale, we must remove it
+          serverDescriptions.set(
+            serverDescription.address,
+            new ServerDescription(serverDescription.address, undefined, {
+              error: new MongoStalePrimaryError(serverDescription, maxSetVersion, maxElectionId)
+            })
+          );
+
+          return [checkHasPrimary(serverDescriptions), setName, maxSetVersion, maxElectionId];
+        }
+      }
+
+      maxElectionId = serverDescription.electionId;
+    }
+
+    if (
+      serverDescription.setVersion != null &&
+      (maxSetVersion == null || serverDescription.setVersion > maxSetVersion)
+    ) {
+      maxSetVersion = serverDescription.setVersion;
+    }
+  }
+
+  // We've heard from the primary. Is it the same primary as before?
+  for (const [address, server] of serverDescriptions) {
+    if (server.type === ServerType.RSPrimary && server.address !== serverDescription.address) {
+      // Reset old primary's type to Unknown.
+      serverDescriptions.set(
+        address,
+        new ServerDescription(server.address, undefined, {
+          error: new MongoStalePrimaryError(serverDescription, maxSetVersion, maxElectionId)
+        })
+      );
+
+      // There can only be one primary
+      break;
+    }
+  }
+
+  // Discover new hosts from this primary's response.
+  serverDescription.allHosts.forEach((address: string) => {
+    if (!serverDescriptions.has(address)) {
+      serverDescriptions.set(address, new ServerDescription(address));
+    }
+  });
+
+  // Remove hosts not in the response.
+  const currentAddresses = Array.from(serverDescriptions.keys());
+  const responseAddresses = serverDescription.allHosts;
+  currentAddresses
+    .filter((addr: string) => responseAddresses.indexOf(addr) === -1)
+    .forEach((address: string) => {
+      serverDescriptions.delete(address);
+    });
+
+  return [checkHasPrimary(serverDescriptions), setName, maxSetVersion, maxElectionId];
+}
+
+function updateRsWithPrimaryFromMember(
+  serverDescriptions: Map<string, ServerDescription>,
+  serverDescription: ServerDescription,
+  setName: string | null = null
+): TopologyType {
+  if (setName == null) {
+    // TODO(NODE-3483): should be an appropriate runtime error
+    throw new MongoRuntimeError('Argument "setName" is required if connected to a replica set');
+  }
+
+  if (
+    setName !== serverDescription.setName ||
+    (serverDescription.me && serverDescription.address !== serverDescription.me)
+  ) {
+    serverDescriptions.delete(serverDescription.address);
+  }
+
+  return checkHasPrimary(serverDescriptions);
+}
+
+function updateRsNoPrimaryFromMember(
+  serverDescriptions: Map<string, ServerDescription>,
+  serverDescription: ServerDescription,
+  setName: string | null = null
+): [TopologyType, string | null] {
+  const topologyType = TopologyType.ReplicaSetNoPrimary;
+  setName = setName ?? serverDescription.setName;
+  if (setName !== serverDescription.setName) {
+    serverDescriptions.delete(serverDescription.address);
+    return [topologyType, setName];
+  }
+
+  serverDescription.allHosts.forEach((address: string) => {
+    if (!serverDescriptions.has(address)) {
+      serverDescriptions.set(address, new ServerDescription(address));
+    }
+  });
+
+  if (serverDescription.me && serverDescription.address !== serverDescription.me) {
+    serverDescriptions.delete(serverDescription.address);
+  }
+
+  return [topologyType, setName];
+}
+
+function checkHasPrimary(serverDescriptions: Map<string, ServerDescription>): TopologyType {
+  for (const serverDescription of serverDescriptions.values()) {
+    if (serverDescription.type === ServerType.RSPrimary) {
+      return TopologyType.ReplicaSetWithPrimary;
+    }
+  }
+
+  return TopologyType.ReplicaSetNoPrimary;
+}
diff --git a/backend/node_modules/mongodb/src/sessions.ts b/backend/node_modules/mongodb/src/sessions.ts
new file mode 100644
index 0000000..26c829f
--- /dev/null
+++ b/backend/node_modules/mongodb/src/sessions.ts
@@ -0,0 +1,1198 @@
+import { Binary, type Document, Long, type Timestamp } from './bson';
+import type { CommandOptions, Connection } from './cmap/connection';
+import { ConnectionPoolMetrics } from './cmap/metrics';
+import { type MongoDBResponse } from './cmap/wire_protocol/responses';
+import { isSharded } from './cmap/wire_protocol/shared';
+import { PINNED, UNPINNED } from './constants';
+import type { AbstractCursor } from './cursor/abstract_cursor';
+import {
+  type AnyError,
+  isRetryableWriteError,
+  MongoAPIError,
+  MongoCompatibilityError,
+  MONGODB_ERROR_CODES,
+  type MongoDriverError,
+  MongoError,
+  MongoErrorLabel,
+  MongoExpiredSessionError,
+  MongoInvalidArgumentError,
+  MongoRuntimeError,
+  MongoServerError,
+  MongoTransactionError,
+  MongoWriteConcernError
+} from './error';
+import type { MongoClient, MongoOptions } from './mongo_client';
+import { TypedEventEmitter } from './mongo_types';
+import { executeOperation } from './operations/execute_operation';
+import { RunAdminCommandOperation } from './operations/run_command';
+import { ReadConcernLevel } from './read_concern';
+import { ReadPreference } from './read_preference';
+import { type AsyncDisposable, configureResourceManagement } from './resource_management';
+import { _advanceClusterTime, type ClusterTime, TopologyType } from './sdam/common';
+import { TimeoutContext } from './timeout';
+import {
+  isTransactionCommand,
+  Transaction,
+  type TransactionOptions,
+  TxnState
+} from './transactions';
+import {
+  ByteUtils,
+  calculateDurationInMs,
+  commandSupportsReadConcern,
+  isPromiseLike,
+  List,
+  maxWireVersion,
+  now,
+  squashError,
+  uuidV4
+} from './utils';
+import { WriteConcern, type WriteConcernOptions, type WriteConcernSettings } from './write_concern';
+
+const minWireVersionForShardedTransactions = 8;
+
+/** @public */
+export interface ClientSessionOptions {
+  /** Whether causal consistency should be enabled on this session */
+  causalConsistency?: boolean;
+  /** Whether all read operations should be read from the same snapshot for this session (NOTE: not compatible with `causalConsistency=true`) */
+  snapshot?: boolean;
+  /** The default TransactionOptions to use for transactions started on this session. */
+  defaultTransactionOptions?: TransactionOptions;
+  /**
+   * @public
+   * @experimental
+   * An overriding timeoutMS value to use for a client-side timeout.
+   * If not provided the session uses the timeoutMS specified on the MongoClient.
+   */
+  defaultTimeoutMS?: number;
+
+  /** @internal */
+  owner?: symbol | AbstractCursor;
+  /** @internal */
+  explicit?: boolean;
+  /** @internal */
+  initialClusterTime?: ClusterTime;
+}
+
+/** @public */
+export type WithTransactionCallback<T = any> = (session: ClientSession) => Promise<T>;
+
+/** @public */
+export type ClientSessionEvents = {
+  ended(session: ClientSession): void;
+};
+
+/** @internal */
+const kServerSession = Symbol('serverSession');
+/** @internal */
+const kSnapshotTime = Symbol('snapshotTime');
+/** @internal */
+const kSnapshotEnabled = Symbol('snapshotEnabled');
+/** @internal */
+const kPinnedConnection = Symbol('pinnedConnection');
+/** @internal Accumulates total number of increments to add to txnNumber when applying session to command */
+const kTxnNumberIncrement = Symbol('txnNumberIncrement');
+
+/** @public */
+export interface EndSessionOptions {
+  /**
+   * An optional error which caused the call to end this session
+   * @internal
+   */
+  error?: AnyError;
+  force?: boolean;
+  forceClear?: boolean;
+
+  /** Specifies the time an operation will run until it throws a timeout error */
+  timeoutMS?: number;
+}
+
+/**
+ * A class representing a client session on the server
+ *
+ * NOTE: not meant to be instantiated directly.
+ * @public
+ */
+export class ClientSession
+  extends TypedEventEmitter<ClientSessionEvents>
+  implements AsyncDisposable
+{
+  /** @internal */
+  client: MongoClient;
+  /** @internal */
+  sessionPool: ServerSessionPool;
+  hasEnded: boolean;
+  clientOptions: MongoOptions;
+  supports: { causalConsistency: boolean };
+  clusterTime?: ClusterTime;
+  operationTime?: Timestamp;
+  explicit: boolean;
+  /** @internal */
+  owner?: symbol | AbstractCursor;
+  defaultTransactionOptions: TransactionOptions;
+  transaction: Transaction;
+  /** @internal
+   * Keeps track of whether or not the current transaction has attempted to be committed. Is
+   * initially undefined. Gets set to false when startTransaction is called. When commitTransaction is sent to server, if the commitTransaction succeeds, it is then set to undefined, otherwise, set to true */
+  commitAttempted?: boolean;
+  /** @internal */
+  private [kServerSession]: ServerSession | null;
+  /** @internal */
+  [kSnapshotTime]?: Timestamp;
+  /** @internal */
+  [kSnapshotEnabled] = false;
+  /** @internal */
+  [kPinnedConnection]?: Connection;
+  /** @internal */
+  [kTxnNumberIncrement]: number;
+  /**
+   * @experimental
+   * Specifies the time an operation in a given `ClientSession` will run until it throws a timeout error
+   */
+  timeoutMS?: number;
+
+  /** @internal */
+  public timeoutContext: TimeoutContext | null = null;
+
+  /**
+   * Create a client session.
+   * @internal
+   * @param client - The current client
+   * @param sessionPool - The server session pool (Internal Class)
+   * @param options - Optional settings
+   * @param clientOptions - Optional settings provided when creating a MongoClient
+   */
+  constructor(
+    client: MongoClient,
+    sessionPool: ServerSessionPool,
+    options: ClientSessionOptions,
+    clientOptions: MongoOptions
+  ) {
+    super();
+
+    if (client == null) {
+      // TODO(NODE-3483)
+      throw new MongoRuntimeError('ClientSession requires a MongoClient');
+    }
+
+    if (sessionPool == null || !(sessionPool instanceof ServerSessionPool)) {
+      // TODO(NODE-3483)
+      throw new MongoRuntimeError('ClientSession requires a ServerSessionPool');
+    }
+
+    options = options ?? {};
+
+    if (options.snapshot === true) {
+      this[kSnapshotEnabled] = true;
+      if (options.causalConsistency === true) {
+        throw new MongoInvalidArgumentError(
+          'Properties "causalConsistency" and "snapshot" are mutually exclusive'
+        );
+      }
+    }
+
+    this.client = client;
+    this.sessionPool = sessionPool;
+    this.hasEnded = false;
+    this.clientOptions = clientOptions;
+    this.timeoutMS = options.defaultTimeoutMS ?? client.s.options?.timeoutMS;
+
+    this.explicit = !!options.explicit;
+    this[kServerSession] = this.explicit ? this.sessionPool.acquire() : null;
+    this[kTxnNumberIncrement] = 0;
+
+    const defaultCausalConsistencyValue = this.explicit && options.snapshot !== true;
+    this.supports = {
+      // if we can enable causal consistency, do so by default
+      causalConsistency: options.causalConsistency ?? defaultCausalConsistencyValue
+    };
+
+    this.clusterTime = options.initialClusterTime;
+
+    this.operationTime = undefined;
+    this.owner = options.owner;
+    this.defaultTransactionOptions = { ...options.defaultTransactionOptions };
+    this.transaction = new Transaction();
+  }
+
+  /** The server id associated with this session */
+  get id(): ServerSessionId | undefined {
+    return this[kServerSession]?.id;
+  }
+
+  get serverSession(): ServerSession {
+    let serverSession = this[kServerSession];
+    if (serverSession == null) {
+      if (this.explicit) {
+        throw new MongoRuntimeError('Unexpected null serverSession for an explicit session');
+      }
+      if (this.hasEnded) {
+        throw new MongoRuntimeError('Unexpected null serverSession for an ended implicit session');
+      }
+      serverSession = this.sessionPool.acquire();
+      this[kServerSession] = serverSession;
+    }
+    return serverSession;
+  }
+
+  /** Whether or not this session is configured for snapshot reads */
+  get snapshotEnabled(): boolean {
+    return this[kSnapshotEnabled];
+  }
+
+  get loadBalanced(): boolean {
+    return this.client.topology?.description.type === TopologyType.LoadBalanced;
+  }
+
+  /** @internal */
+  get pinnedConnection(): Connection | undefined {
+    return this[kPinnedConnection];
+  }
+
+  /** @internal */
+  pin(conn: Connection): void {
+    if (this[kPinnedConnection]) {
+      throw TypeError('Cannot pin multiple connections to the same session');
+    }
+
+    this[kPinnedConnection] = conn;
+    conn.emit(
+      PINNED,
+      this.inTransaction() ? ConnectionPoolMetrics.TXN : ConnectionPoolMetrics.CURSOR
+    );
+  }
+
+  /** @internal */
+  unpin(options?: { force?: boolean; forceClear?: boolean; error?: AnyError }): void {
+    if (this.loadBalanced) {
+      return maybeClearPinnedConnection(this, options);
+    }
+
+    this.transaction.unpinServer();
+  }
+
+  get isPinned(): boolean {
+    return this.loadBalanced ? !!this[kPinnedConnection] : this.transaction.isPinned;
+  }
+
+  /**
+   * Frees any client-side resources held by the current session.  If a session is in a transaction,
+   * the transaction is aborted.
+   *
+   * Does not end the session on the server.
+   *
+   * @param options - Optional settings. Currently reserved for future use
+   */
+  async endSession(options?: EndSessionOptions): Promise<void> {
+    try {
+      if (this.inTransaction()) {
+        await this.abortTransaction({ ...options, throwTimeout: true });
+      }
+    } catch (error) {
+      // spec indicates that we should ignore all errors for `endSessions`
+      if (error.name === 'MongoOperationTimeoutError') throw error;
+      squashError(error);
+    } finally {
+      if (!this.hasEnded) {
+        const serverSession = this[kServerSession];
+        if (serverSession != null) {
+          // release the server session back to the pool
+          this.sessionPool.release(serverSession);
+          // Store a clone of the server session for reference (debugging)
+          this[kServerSession] = new ServerSession(serverSession);
+        }
+        // mark the session as ended, and emit a signal
+        this.hasEnded = true;
+        this.emit('ended', this);
+      }
+      maybeClearPinnedConnection(this, { force: true, ...options });
+    }
+  }
+  /**
+   * @beta
+   * @experimental
+   * An alias for {@link ClientSession.endSession|ClientSession.endSession()}.
+   */
+  declare [Symbol.asyncDispose]: () => Promise<void>;
+  /** @internal */
+  async asyncDispose() {
+    await this.endSession({ force: true });
+  }
+
+  /**
+   * Advances the operationTime for a ClientSession.
+   *
+   * @param operationTime - the `BSON.Timestamp` of the operation type it is desired to advance to
+   */
+  advanceOperationTime(operationTime: Timestamp): void {
+    if (this.operationTime == null) {
+      this.operationTime = operationTime;
+      return;
+    }
+
+    if (operationTime.greaterThan(this.operationTime)) {
+      this.operationTime = operationTime;
+    }
+  }
+
+  /**
+   * Advances the clusterTime for a ClientSession to the provided clusterTime of another ClientSession
+   *
+   * @param clusterTime - the $clusterTime returned by the server from another session in the form of a document containing the `BSON.Timestamp` clusterTime and signature
+   */
+  advanceClusterTime(clusterTime: ClusterTime): void {
+    if (!clusterTime || typeof clusterTime !== 'object') {
+      throw new MongoInvalidArgumentError('input cluster time must be an object');
+    }
+    if (!clusterTime.clusterTime || clusterTime.clusterTime._bsontype !== 'Timestamp') {
+      throw new MongoInvalidArgumentError(
+        'input cluster time "clusterTime" property must be a valid BSON Timestamp'
+      );
+    }
+    if (
+      !clusterTime.signature ||
+      clusterTime.signature.hash?._bsontype !== 'Binary' ||
+      (typeof clusterTime.signature.keyId !== 'bigint' &&
+        typeof clusterTime.signature.keyId !== 'number' &&
+        clusterTime.signature.keyId?._bsontype !== 'Long') // apparently we decode the key to number?
+    ) {
+      throw new MongoInvalidArgumentError(
+        'input cluster time must have a valid "signature" property with BSON Binary hash and BSON Long keyId'
+      );
+    }
+
+    _advanceClusterTime(this, clusterTime);
+  }
+
+  /**
+   * Used to determine if this session equals another
+   *
+   * @param session - The session to compare to
+   */
+  equals(session: ClientSession): boolean {
+    if (!(session instanceof ClientSession)) {
+      return false;
+    }
+
+    if (this.id == null || session.id == null) {
+      return false;
+    }
+
+    return ByteUtils.equals(this.id.id.buffer, session.id.id.buffer);
+  }
+
+  /**
+   * Increment the transaction number on the internal ServerSession
+   *
+   * @privateRemarks
+   * This helper increments a value stored on the client session that will be
+   * added to the serverSession's txnNumber upon applying it to a command.
+   * This is because the serverSession is lazily acquired after a connection is obtained
+   */
+  incrementTransactionNumber(): void {
+    this[kTxnNumberIncrement] += 1;
+  }
+
+  /** @returns whether this session is currently in a transaction or not */
+  inTransaction(): boolean {
+    return this.transaction.isActive;
+  }
+
+  /**
+   * Starts a new transaction with the given options.
+   *
+   * @remarks
+   * **IMPORTANT**: Running operations in parallel is not supported during a transaction. The use of `Promise.all`,
+   * `Promise.allSettled`, `Promise.race`, etc to parallelize operations inside a transaction is
+   * undefined behaviour.
+   *
+   * @param options - Options for the transaction
+   */
+  startTransaction(options?: TransactionOptions): void {
+    if (this[kSnapshotEnabled]) {
+      throw new MongoCompatibilityError('Transactions are not supported in snapshot sessions');
+    }
+
+    if (this.inTransaction()) {
+      throw new MongoTransactionError('Transaction already in progress');
+    }
+
+    if (this.isPinned && this.transaction.isCommitted) {
+      this.unpin();
+    }
+
+    const topologyMaxWireVersion = maxWireVersion(this.client.topology);
+    if (
+      isSharded(this.client.topology) &&
+      topologyMaxWireVersion != null &&
+      topologyMaxWireVersion < minWireVersionForShardedTransactions
+    ) {
+      throw new MongoCompatibilityError(
+        'Transactions are not supported on sharded clusters in MongoDB < 4.2.'
+      );
+    }
+
+    this.commitAttempted = false;
+    // increment txnNumber
+    this.incrementTransactionNumber();
+    // create transaction state
+    this.transaction = new Transaction({
+      readConcern:
+        options?.readConcern ??
+        this.defaultTransactionOptions.readConcern ??
+        this.clientOptions?.readConcern,
+      writeConcern:
+        options?.writeConcern ??
+        this.defaultTransactionOptions.writeConcern ??
+        this.clientOptions?.writeConcern,
+      readPreference:
+        options?.readPreference ??
+        this.defaultTransactionOptions.readPreference ??
+        this.clientOptions?.readPreference,
+      maxCommitTimeMS: options?.maxCommitTimeMS ?? this.defaultTransactionOptions.maxCommitTimeMS
+    });
+
+    this.transaction.transition(TxnState.STARTING_TRANSACTION);
+  }
+
+  /**
+   * Commits the currently active transaction in this session.
+   *
+   * @param options - Optional options, can be used to override `defaultTimeoutMS`.
+   */
+  async commitTransaction(options?: { timeoutMS?: number }): Promise<void> {
+    if (this.transaction.state === TxnState.NO_TRANSACTION) {
+      throw new MongoTransactionError('No transaction started');
+    }
+
+    if (
+      this.transaction.state === TxnState.STARTING_TRANSACTION ||
+      this.transaction.state === TxnState.TRANSACTION_COMMITTED_EMPTY
+    ) {
+      // the transaction was never started, we can safely exit here
+      this.transaction.transition(TxnState.TRANSACTION_COMMITTED_EMPTY);
+      return;
+    }
+
+    if (this.transaction.state === TxnState.TRANSACTION_ABORTED) {
+      throw new MongoTransactionError(
+        'Cannot call commitTransaction after calling abortTransaction'
+      );
+    }
+
+    const command: {
+      commitTransaction: 1;
+      writeConcern?: WriteConcernSettings;
+      recoveryToken?: Document;
+      maxTimeMS?: number;
+    } = { commitTransaction: 1 };
+
+    const timeoutMS =
+      typeof options?.timeoutMS === 'number'
+        ? options.timeoutMS
+        : typeof this.timeoutMS === 'number'
+          ? this.timeoutMS
+          : null;
+
+    const wc = this.transaction.options.writeConcern ?? this.clientOptions?.writeConcern;
+    if (wc != null) {
+      if (timeoutMS == null && this.timeoutContext == null) {
+        WriteConcern.apply(command, { wtimeoutMS: 10000, w: 'majority', ...wc });
+      } else {
+        const wcKeys = Object.keys(wc);
+        if (wcKeys.length > 2 || (!wcKeys.includes('wtimeoutMS') && !wcKeys.includes('wTimeoutMS')))
+          // if the write concern was specified with wTimeoutMS, then we set both wtimeoutMS and wTimeoutMS, guaranteeing at least two keys, so if we have more than two keys, then we can automatically assume that we should add the write concern to the command. If it has 2 or fewer keys, we need to check that those keys aren't the wtimeoutMS or wTimeoutMS options before we add the write concern to the command
+          WriteConcern.apply(command, { ...wc, wtimeoutMS: undefined });
+      }
+    }
+
+    if (this.transaction.state === TxnState.TRANSACTION_COMMITTED || this.commitAttempted) {
+      if (timeoutMS == null && this.timeoutContext == null) {
+        WriteConcern.apply(command, { wtimeoutMS: 10000, ...wc, w: 'majority' });
+      } else {
+        WriteConcern.apply(command, { w: 'majority', ...wc, wtimeoutMS: undefined });
+      }
+    }
+
+    if (typeof this.transaction.options.maxTimeMS === 'number') {
+      command.maxTimeMS = this.transaction.options.maxTimeMS;
+    }
+
+    if (this.transaction.recoveryToken) {
+      command.recoveryToken = this.transaction.recoveryToken;
+    }
+
+    const operation = new RunAdminCommandOperation(command, {
+      session: this,
+      readPreference: ReadPreference.primary,
+      bypassPinningCheck: true
+    });
+
+    const timeoutContext =
+      this.timeoutContext ??
+      (typeof timeoutMS === 'number'
+        ? TimeoutContext.create({
+            serverSelectionTimeoutMS: this.clientOptions.serverSelectionTimeoutMS,
+            socketTimeoutMS: this.clientOptions.socketTimeoutMS,
+            timeoutMS
+          })
+        : null);
+
+    try {
+      await executeOperation(this.client, operation, timeoutContext);
+      this.commitAttempted = undefined;
+      return;
+    } catch (firstCommitError) {
+      this.commitAttempted = true;
+      if (firstCommitError instanceof MongoError && isRetryableWriteError(firstCommitError)) {
+        // SPEC-1185: apply majority write concern when retrying commitTransaction
+        WriteConcern.apply(command, { wtimeoutMS: 10000, ...wc, w: 'majority' });
+        // per txns spec, must unpin session in this case
+        this.unpin({ force: true });
+
+        try {
+          await executeOperation(
+            this.client,
+            new RunAdminCommandOperation(command, {
+              session: this,
+              readPreference: ReadPreference.primary,
+              bypassPinningCheck: true
+            }),
+            timeoutContext
+          );
+          return;
+        } catch (retryCommitError) {
+          // If the retry failed, we process that error instead of the original
+          if (shouldAddUnknownTransactionCommitResultLabel(retryCommitError)) {
+            retryCommitError.addErrorLabel(MongoErrorLabel.UnknownTransactionCommitResult);
+          }
+
+          if (shouldUnpinAfterCommitError(retryCommitError)) {
+            this.unpin({ error: retryCommitError });
+          }
+
+          throw retryCommitError;
+        }
+      }
+
+      if (shouldAddUnknownTransactionCommitResultLabel(firstCommitError)) {
+        firstCommitError.addErrorLabel(MongoErrorLabel.UnknownTransactionCommitResult);
+      }
+
+      if (shouldUnpinAfterCommitError(firstCommitError)) {
+        this.unpin({ error: firstCommitError });
+      }
+
+      throw firstCommitError;
+    } finally {
+      this.transaction.transition(TxnState.TRANSACTION_COMMITTED);
+    }
+  }
+
+  /**
+   * Aborts the currently active transaction in this session.
+   *
+   * @param options - Optional options, can be used to override `defaultTimeoutMS`.
+   */
+  async abortTransaction(options?: { timeoutMS?: number }): Promise<void>;
+  /** @internal */
+  async abortTransaction(options?: { timeoutMS?: number; throwTimeout?: true }): Promise<void>;
+  async abortTransaction(options?: { timeoutMS?: number; throwTimeout?: true }): Promise<void> {
+    if (this.transaction.state === TxnState.NO_TRANSACTION) {
+      throw new MongoTransactionError('No transaction started');
+    }
+
+    if (this.transaction.state === TxnState.STARTING_TRANSACTION) {
+      // the transaction was never started, we can safely exit here
+      this.transaction.transition(TxnState.TRANSACTION_ABORTED);
+      return;
+    }
+
+    if (this.transaction.state === TxnState.TRANSACTION_ABORTED) {
+      throw new MongoTransactionError('Cannot call abortTransaction twice');
+    }
+
+    if (
+      this.transaction.state === TxnState.TRANSACTION_COMMITTED ||
+      this.transaction.state === TxnState.TRANSACTION_COMMITTED_EMPTY
+    ) {
+      throw new MongoTransactionError(
+        'Cannot call abortTransaction after calling commitTransaction'
+      );
+    }
+
+    const command: {
+      abortTransaction: 1;
+      writeConcern?: WriteConcernOptions;
+      recoveryToken?: Document;
+    } = { abortTransaction: 1 };
+
+    const timeoutMS =
+      typeof options?.timeoutMS === 'number'
+        ? options.timeoutMS
+        : this.timeoutContext?.csotEnabled()
+          ? this.timeoutContext.timeoutMS // refresh timeoutMS for abort operation
+          : typeof this.timeoutMS === 'number'
+            ? this.timeoutMS
+            : null;
+
+    const timeoutContext =
+      timeoutMS != null
+        ? TimeoutContext.create({
+            timeoutMS,
+            serverSelectionTimeoutMS: this.clientOptions.serverSelectionTimeoutMS,
+            socketTimeoutMS: this.clientOptions.socketTimeoutMS
+          })
+        : null;
+
+    const wc = this.transaction.options.writeConcern ?? this.clientOptions?.writeConcern;
+    if (wc != null && timeoutMS == null) {
+      WriteConcern.apply(command, { wtimeoutMS: 10000, w: 'majority', ...wc });
+    }
+
+    if (this.transaction.recoveryToken) {
+      command.recoveryToken = this.transaction.recoveryToken;
+    }
+
+    const operation = new RunAdminCommandOperation(command, {
+      session: this,
+      readPreference: ReadPreference.primary,
+      bypassPinningCheck: true
+    });
+
+    try {
+      await executeOperation(this.client, operation, timeoutContext);
+      this.unpin();
+      return;
+    } catch (firstAbortError) {
+      this.unpin();
+
+      if (firstAbortError.name === 'MongoRuntimeError') throw firstAbortError;
+      if (options?.throwTimeout && firstAbortError.name === 'MongoOperationTimeoutError') {
+        throw firstAbortError;
+      }
+
+      if (firstAbortError instanceof MongoError && isRetryableWriteError(firstAbortError)) {
+        try {
+          await executeOperation(this.client, operation, timeoutContext);
+          return;
+        } catch (secondAbortError) {
+          if (secondAbortError.name === 'MongoRuntimeError') throw secondAbortError;
+          if (options?.throwTimeout && secondAbortError.name === 'MongoOperationTimeoutError') {
+            throw secondAbortError;
+          }
+          // we do not retry the retry
+        }
+      }
+
+      // The spec indicates that if the operation times out or fails with a non-retryable error, we should ignore all errors on `abortTransaction`
+    } finally {
+      this.transaction.transition(TxnState.TRANSACTION_ABORTED);
+      if (this.loadBalanced) {
+        maybeClearPinnedConnection(this, { force: false });
+      }
+    }
+  }
+
+  /**
+   * This is here to ensure that ClientSession is never serialized to BSON.
+   */
+  toBSON(): never {
+    throw new MongoRuntimeError('ClientSession cannot be serialized to BSON.');
+  }
+
+  /**
+   * Starts a transaction and runs a provided function, ensuring the commitTransaction is always attempted when all operations run in the function have completed.
+   *
+   * **IMPORTANT:** This method requires the function passed in to return a Promise. That promise must be made by `await`-ing all operations in such a way that rejections are propagated to the returned promise.
+   *
+   * **IMPORTANT:** Running operations in parallel is not supported during a transaction. The use of `Promise.all`,
+   * `Promise.allSettled`, `Promise.race`, etc to parallelize operations inside a transaction is
+   * undefined behaviour.
+   *
+   * **IMPORTANT:** When running an operation inside a `withTransaction` callback, if it is not
+   * provided the explicit session in its options, it will not be part of the transaction and it will not respect timeoutMS.
+   *
+   *
+   * @remarks
+   * - If all operations successfully complete and the `commitTransaction` operation is successful, then the provided function will return the result of the provided function.
+   * - If the transaction is unable to complete or an error is thrown from within the provided function, then the provided function will throw an error.
+   *   - If the transaction is manually aborted within the provided function it will not throw.
+   * - If the driver needs to attempt to retry the operations, the provided function may be called multiple times.
+   *
+   * Checkout a descriptive example here:
+   * @see https://www.mongodb.com/blog/post/quick-start-nodejs--mongodb--how-to-implement-transactions
+   *
+   * If a command inside withTransaction fails:
+   * - It may cause the transaction on the server to be aborted.
+   * - This situation is normally handled transparently by the driver.
+   * - However, if the application catches such an error and does not rethrow it, the driver will not be able to determine whether the transaction was aborted or not.
+   * - The driver will then retry the transaction indefinitely.
+   *
+   * To avoid this situation, the application must not silently handle errors within the provided function.
+   * If the application needs to handle errors within, it must await all operations such that if an operation is rejected it becomes the rejection of the callback function passed into withTransaction.
+   *
+   * @param fn - callback to run within a transaction
+   * @param options - optional settings for the transaction
+   * @returns A raw command response or undefined
+   */
+  async withTransaction<T = any>(
+    fn: WithTransactionCallback<T>,
+    options?: TransactionOptions & {
+      /**
+       * Configures a timeoutMS expiry for the entire withTransactionCallback.
+       *
+       * @remarks
+       * - The remaining timeout will not be applied to callback operations that do not use the ClientSession.
+       * - Overriding timeoutMS for operations executed using the explicit session inside the provided callback will result in a client-side error.
+       */
+      timeoutMS?: number;
+    }
+  ): Promise<T> {
+    const MAX_TIMEOUT = 120000;
+
+    const timeoutMS = options?.timeoutMS ?? this.timeoutMS ?? null;
+    this.timeoutContext =
+      timeoutMS != null
+        ? TimeoutContext.create({
+            timeoutMS,
+            serverSelectionTimeoutMS: this.clientOptions.serverSelectionTimeoutMS,
+            socketTimeoutMS: this.clientOptions.socketTimeoutMS
+          })
+        : null;
+
+    const startTime = this.timeoutContext?.csotEnabled() ? this.timeoutContext.start : now();
+
+    let committed = false;
+    let result: any;
+
+    try {
+      while (!committed) {
+        this.startTransaction(options); // may throw on error
+
+        try {
+          const promise = fn(this);
+          if (!isPromiseLike(promise)) {
+            throw new MongoInvalidArgumentError(
+              'Function provided to `withTransaction` must return a Promise'
+            );
+          }
+
+          result = await promise;
+
+          if (
+            this.transaction.state === TxnState.NO_TRANSACTION ||
+            this.transaction.state === TxnState.TRANSACTION_COMMITTED ||
+            this.transaction.state === TxnState.TRANSACTION_ABORTED
+          ) {
+            // Assume callback intentionally ended the transaction
+            return result;
+          }
+        } catch (fnError) {
+          if (!(fnError instanceof MongoError) || fnError instanceof MongoInvalidArgumentError) {
+            await this.abortTransaction();
+            throw fnError;
+          }
+
+          if (
+            this.transaction.state === TxnState.STARTING_TRANSACTION ||
+            this.transaction.state === TxnState.TRANSACTION_IN_PROGRESS
+          ) {
+            await this.abortTransaction();
+          }
+
+          if (
+            fnError.hasErrorLabel(MongoErrorLabel.TransientTransactionError) &&
+            (this.timeoutContext != null || now() - startTime < MAX_TIMEOUT)
+          ) {
+            continue;
+          }
+
+          throw fnError;
+        }
+
+        while (!committed) {
+          try {
+            /*
+             * We will rely on ClientSession.commitTransaction() to
+             * apply a majority write concern if commitTransaction is
+             * being retried (see: DRIVERS-601)
+             */
+            await this.commitTransaction();
+            committed = true;
+          } catch (commitError) {
+            /*
+             * Note: a maxTimeMS error will have the MaxTimeMSExpired
+             * code (50) and can be reported as a top-level error or
+             * inside writeConcernError, ex.
+             * { ok:0, code: 50, codeName: 'MaxTimeMSExpired' }
+             * { ok:1, writeConcernError: { code: 50, codeName: 'MaxTimeMSExpired' } }
+             */
+            if (
+              !isMaxTimeMSExpiredError(commitError) &&
+              commitError.hasErrorLabel(MongoErrorLabel.UnknownTransactionCommitResult) &&
+              (this.timeoutContext != null || now() - startTime < MAX_TIMEOUT)
+            ) {
+              continue;
+            }
+
+            if (
+              commitError.hasErrorLabel(MongoErrorLabel.TransientTransactionError) &&
+              (this.timeoutContext != null || now() - startTime < MAX_TIMEOUT)
+            ) {
+              break;
+            }
+
+            throw commitError;
+          }
+        }
+      }
+      return result;
+    } finally {
+      this.timeoutContext = null;
+    }
+  }
+}
+
+configureResourceManagement(ClientSession.prototype);
+
+const NON_DETERMINISTIC_WRITE_CONCERN_ERRORS = new Set([
+  'CannotSatisfyWriteConcern',
+  'UnknownReplWriteConcern',
+  'UnsatisfiableWriteConcern'
+]);
+
+function shouldUnpinAfterCommitError(commitError: Error) {
+  if (commitError instanceof MongoError) {
+    if (
+      isRetryableWriteError(commitError) ||
+      commitError instanceof MongoWriteConcernError ||
+      isMaxTimeMSExpiredError(commitError)
+    ) {
+      if (isUnknownTransactionCommitResult(commitError)) {
+        // per txns spec, must unpin session in this case
+        return true;
+      }
+    } else if (commitError.hasErrorLabel(MongoErrorLabel.TransientTransactionError)) {
+      return true;
+    }
+  }
+  return false;
+}
+
+function shouldAddUnknownTransactionCommitResultLabel(commitError: MongoError) {
+  let ok = isRetryableWriteError(commitError);
+  ok ||= commitError instanceof MongoWriteConcernError;
+  ok ||= isMaxTimeMSExpiredError(commitError);
+  ok &&= isUnknownTransactionCommitResult(commitError);
+  return ok;
+}
+
+function isUnknownTransactionCommitResult(err: MongoError): err is MongoError {
+  const isNonDeterministicWriteConcernError =
+    err instanceof MongoServerError &&
+    err.codeName &&
+    NON_DETERMINISTIC_WRITE_CONCERN_ERRORS.has(err.codeName);
+
+  return (
+    isMaxTimeMSExpiredError(err) ||
+    (!isNonDeterministicWriteConcernError &&
+      err.code !== MONGODB_ERROR_CODES.UnsatisfiableWriteConcern &&
+      err.code !== MONGODB_ERROR_CODES.UnknownReplWriteConcern)
+  );
+}
+
+export function maybeClearPinnedConnection(
+  session: ClientSession,
+  options?: EndSessionOptions
+): void {
+  // unpin a connection if it has been pinned
+  const conn = session[kPinnedConnection];
+  const error = options?.error;
+
+  if (
+    session.inTransaction() &&
+    error &&
+    error instanceof MongoError &&
+    error.hasErrorLabel(MongoErrorLabel.TransientTransactionError)
+  ) {
+    return;
+  }
+
+  const topology = session.client.topology;
+  // NOTE: the spec talks about what to do on a network error only, but the tests seem to
+  //       to validate that we don't unpin on _all_ errors?
+  if (conn && topology != null) {
+    const servers = Array.from(topology.s.servers.values());
+    const loadBalancer = servers[0];
+
+    if (options?.error == null || options?.force) {
+      loadBalancer.pool.checkIn(conn);
+      session[kPinnedConnection] = undefined;
+      conn.emit(
+        UNPINNED,
+        session.transaction.state !== TxnState.NO_TRANSACTION
+          ? ConnectionPoolMetrics.TXN
+          : ConnectionPoolMetrics.CURSOR
+      );
+
+      if (options?.forceClear) {
+        loadBalancer.pool.clear({ serviceId: conn.serviceId });
+      }
+    }
+  }
+}
+
+function isMaxTimeMSExpiredError(err: MongoError): boolean {
+  if (err == null || !(err instanceof MongoServerError)) {
+    return false;
+  }
+
+  return (
+    err.code === MONGODB_ERROR_CODES.MaxTimeMSExpired ||
+    err.writeConcernError?.code === MONGODB_ERROR_CODES.MaxTimeMSExpired
+  );
+}
+
+/** @public */
+export type ServerSessionId = { id: Binary };
+
+/**
+ * Reflects the existence of a session on the server. Can be reused by the session pool.
+ * WARNING: not meant to be instantiated directly. For internal use only.
+ * @public
+ */
+export class ServerSession {
+  id: ServerSessionId;
+  lastUse: number;
+  txnNumber: number;
+  isDirty: boolean;
+
+  /** @internal */
+  constructor(cloned?: ServerSession | null) {
+    if (cloned != null) {
+      const idBytes = Buffer.allocUnsafe(16);
+      idBytes.set(cloned.id.id.buffer);
+      this.id = { id: new Binary(idBytes, cloned.id.id.sub_type) };
+      this.lastUse = cloned.lastUse;
+      this.txnNumber = cloned.txnNumber;
+      this.isDirty = cloned.isDirty;
+      return;
+    }
+    this.id = { id: new Binary(uuidV4(), Binary.SUBTYPE_UUID) };
+    this.lastUse = now();
+    this.txnNumber = 0;
+    this.isDirty = false;
+  }
+
+  /**
+   * Determines if the server session has timed out.
+   *
+   * @param sessionTimeoutMinutes - The server's "logicalSessionTimeoutMinutes"
+   */
+  hasTimedOut(sessionTimeoutMinutes: number): boolean {
+    // Take the difference of the lastUse timestamp and now, which will result in a value in
+    // milliseconds, and then convert milliseconds to minutes to compare to `sessionTimeoutMinutes`
+    const idleTimeMinutes = Math.round(
+      ((calculateDurationInMs(this.lastUse) % 86400000) % 3600000) / 60000
+    );
+
+    return idleTimeMinutes > sessionTimeoutMinutes - 1;
+  }
+}
+
+/**
+ * Maintains a pool of Server Sessions.
+ * For internal use only
+ * @internal
+ */
+export class ServerSessionPool {
+  client: MongoClient;
+  sessions: List<ServerSession>;
+
+  constructor(client: MongoClient) {
+    if (client == null) {
+      throw new MongoRuntimeError('ServerSessionPool requires a MongoClient');
+    }
+
+    this.client = client;
+    this.sessions = new List<ServerSession>();
+  }
+
+  /**
+   * Acquire a Server Session from the pool.
+   * Iterates through each session in the pool, removing any stale sessions
+   * along the way. The first non-stale session found is removed from the
+   * pool and returned. If no non-stale session is found, a new ServerSession is created.
+   */
+  acquire(): ServerSession {
+    const sessionTimeoutMinutes = this.client.topology?.logicalSessionTimeoutMinutes ?? 10;
+
+    let session: ServerSession | null = null;
+
+    // Try to obtain from session pool
+    while (this.sessions.length > 0) {
+      const potentialSession = this.sessions.shift();
+      if (
+        potentialSession != null &&
+        (!!this.client.topology?.loadBalanced ||
+          !potentialSession.hasTimedOut(sessionTimeoutMinutes))
+      ) {
+        session = potentialSession;
+        break;
+      }
+    }
+
+    // If nothing valid came from the pool make a new one
+    if (session == null) {
+      session = new ServerSession();
+    }
+
+    return session;
+  }
+
+  /**
+   * Release a session to the session pool
+   * Adds the session back to the session pool if the session has not timed out yet.
+   * This method also removes any stale sessions from the pool.
+   *
+   * @param session - The session to release to the pool
+   */
+  release(session: ServerSession): void {
+    const sessionTimeoutMinutes = this.client.topology?.logicalSessionTimeoutMinutes ?? 10;
+
+    if (this.client.topology?.loadBalanced && !sessionTimeoutMinutes) {
+      this.sessions.unshift(session);
+    }
+
+    if (!sessionTimeoutMinutes) {
+      return;
+    }
+
+    this.sessions.prune(session => session.hasTimedOut(sessionTimeoutMinutes));
+
+    if (!session.hasTimedOut(sessionTimeoutMinutes)) {
+      if (session.isDirty) {
+        return;
+      }
+
+      // otherwise, readd this session to the session pool
+      this.sessions.unshift(session);
+    }
+  }
+}
+
+/**
+ * Optionally decorate a command with sessions specific keys
+ *
+ * @param session - the session tracking transaction state
+ * @param command - the command to decorate
+ * @param options - Optional settings passed to calling operation
+ *
+ * @internal
+ */
+export function applySession(
+  session: ClientSession,
+  command: Document,
+  options: CommandOptions
+): MongoDriverError | undefined {
+  if (session.hasEnded) {
+    return new MongoExpiredSessionError();
+  }
+
+  // May acquire serverSession here
+  const serverSession = session.serverSession;
+  if (serverSession == null) {
+    return new MongoRuntimeError('Unable to acquire server session');
+  }
+
+  if (options.writeConcern?.w === 0) {
+    if (session && session.explicit) {
+      // Error if user provided an explicit session to an unacknowledged write (SPEC-1019)
+      return new MongoAPIError('Cannot have explicit session with unacknowledged writes');
+    }
+    return;
+  }
+
+  // mark the last use of this session, and apply the `lsid`
+  serverSession.lastUse = now();
+  command.lsid = serverSession.id;
+
+  const inTxnOrTxnCommand = session.inTransaction() || isTransactionCommand(command);
+  const isRetryableWrite = !!options.willRetryWrite;
+
+  if (isRetryableWrite || inTxnOrTxnCommand) {
+    serverSession.txnNumber += session[kTxnNumberIncrement];
+    session[kTxnNumberIncrement] = 0;
+    // TODO(NODE-2674): Preserve int64 sent from MongoDB
+    command.txnNumber = Long.fromNumber(serverSession.txnNumber);
+  }
+
+  if (!inTxnOrTxnCommand) {
+    if (session.transaction.state !== TxnState.NO_TRANSACTION) {
+      session.transaction.transition(TxnState.NO_TRANSACTION);
+    }
+
+    if (
+      session.supports.causalConsistency &&
+      session.operationTime &&
+      commandSupportsReadConcern(command)
+    ) {
+      command.readConcern = command.readConcern || {};
+      Object.assign(command.readConcern, { afterClusterTime: session.operationTime });
+    } else if (session[kSnapshotEnabled]) {
+      command.readConcern = command.readConcern || { level: ReadConcernLevel.snapshot };
+      if (session[kSnapshotTime] != null) {
+        Object.assign(command.readConcern, { atClusterTime: session[kSnapshotTime] });
+      }
+    }
+
+    return;
+  }
+
+  // now attempt to apply transaction-specific sessions data
+
+  // `autocommit` must always be false to differentiate from retryable writes
+  command.autocommit = false;
+
+  if (session.transaction.state === TxnState.STARTING_TRANSACTION) {
+    session.transaction.transition(TxnState.TRANSACTION_IN_PROGRESS);
+    command.startTransaction = true;
+
+    const readConcern =
+      session.transaction.options.readConcern || session?.clientOptions?.readConcern;
+    if (readConcern) {
+      command.readConcern = readConcern;
+    }
+
+    if (session.supports.causalConsistency && session.operationTime) {
+      command.readConcern = command.readConcern || {};
+      Object.assign(command.readConcern, { afterClusterTime: session.operationTime });
+    }
+  }
+  return;
+}
+
+export function updateSessionFromResponse(session: ClientSession, document: MongoDBResponse): void {
+  if (document.$clusterTime) {
+    _advanceClusterTime(session, document.$clusterTime);
+  }
+
+  if (document.operationTime && session && session.supports.causalConsistency) {
+    session.advanceOperationTime(document.operationTime);
+  }
+
+  if (document.recoveryToken && session && session.inTransaction()) {
+    session.transaction._recoveryToken = document.recoveryToken;
+  }
+
+  if (session?.[kSnapshotEnabled] && session[kSnapshotTime] == null) {
+    // find and aggregate commands return atClusterTime on the cursor
+    // distinct includes it in the response body
+    const atClusterTime = document.atClusterTime;
+    if (atClusterTime) {
+      session[kSnapshotTime] = atClusterTime;
+    }
+  }
+}
diff --git a/backend/node_modules/mongodb/src/sort.ts b/backend/node_modules/mongodb/src/sort.ts
new file mode 100644
index 0000000..eb462a5
--- /dev/null
+++ b/backend/node_modules/mongodb/src/sort.ts
@@ -0,0 +1,132 @@
+import { MongoInvalidArgumentError } from './error';
+
+/** @public */
+export type SortDirection =
+  | 1
+  | -1
+  | 'asc'
+  | 'desc'
+  | 'ascending'
+  | 'descending'
+  | { $meta: string };
+
+/** @public */
+export type Sort =
+  | string
+  | Exclude<SortDirection, { $meta: string }>
+  | string[]
+  | { [key: string]: SortDirection }
+  | Map<string, SortDirection>
+  | [string, SortDirection][]
+  | [string, SortDirection];
+
+/** Below stricter types were created for sort that correspond with type that the cmd takes  */
+
+/** @internal */
+export type SortDirectionForCmd = 1 | -1 | { $meta: string };
+
+/** @internal */
+export type SortForCmd = Map<string, SortDirectionForCmd>;
+
+/** @internal */
+type SortPairForCmd = [string, SortDirectionForCmd];
+
+/** @internal */
+function prepareDirection(direction: any = 1): SortDirectionForCmd {
+  const value = `${direction}`.toLowerCase();
+  if (isMeta(direction)) return direction;
+  switch (value) {
+    case 'ascending':
+    case 'asc':
+    case '1':
+      return 1;
+    case 'descending':
+    case 'desc':
+    case '-1':
+      return -1;
+    default:
+      throw new MongoInvalidArgumentError(`Invalid sort direction: ${JSON.stringify(direction)}`);
+  }
+}
+
+/** @internal */
+function isMeta(t: SortDirection): t is { $meta: string } {
+  return typeof t === 'object' && t != null && '$meta' in t && typeof t.$meta === 'string';
+}
+
+/** @internal */
+function isPair(t: Sort): t is [string, SortDirection] {
+  if (Array.isArray(t) && t.length === 2) {
+    try {
+      prepareDirection(t[1]);
+      return true;
+    } catch {
+      return false;
+    }
+  }
+  return false;
+}
+
+function isDeep(t: Sort): t is [string, SortDirection][] {
+  return Array.isArray(t) && Array.isArray(t[0]);
+}
+
+function isMap(t: Sort): t is Map<string, SortDirection> {
+  return t instanceof Map && t.size > 0;
+}
+
+/** @internal */
+function pairToMap(v: [string, SortDirection]): SortForCmd {
+  return new Map([[`${v[0]}`, prepareDirection([v[1]])]]);
+}
+
+/** @internal */
+function deepToMap(t: [string, SortDirection][]): SortForCmd {
+  const sortEntries: SortPairForCmd[] = t.map(([k, v]) => [`${k}`, prepareDirection(v)]);
+  return new Map(sortEntries);
+}
+
+/** @internal */
+function stringsToMap(t: string[]): SortForCmd {
+  const sortEntries: SortPairForCmd[] = t.map(key => [`${key}`, 1]);
+  return new Map(sortEntries);
+}
+
+/** @internal */
+function objectToMap(t: { [key: string]: SortDirection }): SortForCmd {
+  const sortEntries: SortPairForCmd[] = Object.entries(t).map(([k, v]) => [
+    `${k}`,
+    prepareDirection(v)
+  ]);
+  return new Map(sortEntries);
+}
+
+/** @internal */
+function mapToMap(t: Map<string, SortDirection>): SortForCmd {
+  const sortEntries: SortPairForCmd[] = Array.from(t).map(([k, v]) => [
+    `${k}`,
+    prepareDirection(v)
+  ]);
+  return new Map(sortEntries);
+}
+
+/** converts a Sort type into a type that is valid for the server (SortForCmd) */
+export function formatSort(
+  sort: Sort | undefined,
+  direction?: SortDirection
+): SortForCmd | undefined {
+  if (sort == null) return undefined;
+  if (typeof sort === 'string') return new Map([[sort, prepareDirection(direction)]]);
+  if (typeof sort !== 'object') {
+    throw new MongoInvalidArgumentError(
+      `Invalid sort format: ${JSON.stringify(sort)} Sort must be a valid object`
+    );
+  }
+  if (!Array.isArray(sort)) {
+    return isMap(sort) ? mapToMap(sort) : Object.keys(sort).length ? objectToMap(sort) : undefined;
+  }
+  if (!sort.length) return undefined;
+  if (isDeep(sort)) return deepToMap(sort);
+  if (isPair(sort)) return pairToMap(sort);
+  return stringsToMap(sort);
+}
diff --git a/backend/node_modules/mongodb/src/timeout.ts b/backend/node_modules/mongodb/src/timeout.ts
new file mode 100644
index 0000000..3b1dbcb
--- /dev/null
+++ b/backend/node_modules/mongodb/src/timeout.ts
@@ -0,0 +1,399 @@
+import { clearTimeout, setTimeout } from 'timers';
+
+import { type Document } from './bson';
+import { MongoInvalidArgumentError, MongoOperationTimeoutError, MongoRuntimeError } from './error';
+import { type ClientSession } from './sessions';
+import { csotMin, noop } from './utils';
+
+/** @internal */
+export class TimeoutError extends Error {
+  duration: number;
+  override get name(): 'TimeoutError' {
+    return 'TimeoutError';
+  }
+
+  constructor(message: string, options: { cause?: Error; duration: number }) {
+    super(message, options);
+    this.duration = options.duration;
+  }
+
+  static is(error: unknown): error is TimeoutError {
+    return (
+      error != null && typeof error === 'object' && 'name' in error && error.name === 'TimeoutError'
+    );
+  }
+}
+
+type Executor = ConstructorParameters<typeof Promise<never>>[0];
+type Reject = Parameters<ConstructorParameters<typeof Promise<never>>[0]>[1];
+/**
+ * @internal
+ * This class is an abstraction over timeouts
+ * The Timeout class can only be in the pending or rejected states. It is guaranteed not to resolve
+ * if interacted with exclusively through its public API
+ * */
+export class Timeout extends Promise<never> {
+  private id?: NodeJS.Timeout;
+
+  public readonly start: number;
+  public ended: number | null = null;
+  public duration: number;
+  private timedOut = false;
+  public cleared = false;
+
+  get remainingTime(): number {
+    if (this.timedOut) return 0;
+    if (this.duration === 0) return Infinity;
+    return this.start + this.duration - Math.trunc(performance.now());
+  }
+
+  get timeElapsed(): number {
+    return Math.trunc(performance.now()) - this.start;
+  }
+
+  /** Create a new timeout that expires in `duration` ms */
+  private constructor(
+    executor: Executor = () => null,
+    options?: { duration: number; unref?: true; rejection?: Error }
+  ) {
+    const duration = options?.duration ?? 0;
+    const unref = !!options?.unref;
+    const rejection = options?.rejection;
+
+    if (duration < 0) {
+      throw new MongoInvalidArgumentError('Cannot create a Timeout with a negative duration');
+    }
+
+    let reject!: Reject;
+    super((_, promiseReject) => {
+      reject = promiseReject;
+
+      executor(noop, promiseReject);
+    });
+
+    this.duration = duration;
+    this.start = Math.trunc(performance.now());
+
+    if (rejection == null && this.duration > 0) {
+      this.id = setTimeout(() => {
+        this.ended = Math.trunc(performance.now());
+        this.timedOut = true;
+        reject(new TimeoutError(`Expired after ${duration}ms`, { duration }));
+      }, this.duration);
+      if (typeof this.id.unref === 'function' && unref) {
+        // Ensure we do not keep the Node.js event loop running
+        this.id.unref();
+      }
+    } else if (rejection != null) {
+      this.ended = Math.trunc(performance.now());
+      this.timedOut = true;
+      reject(rejection);
+    }
+  }
+
+  /**
+   * Clears the underlying timeout. This method is idempotent
+   */
+  clear(): void {
+    clearTimeout(this.id);
+    this.id = undefined;
+    this.timedOut = false;
+    this.cleared = true;
+  }
+
+  throwIfExpired(): void {
+    if (this.timedOut) throw new TimeoutError('Timed out', { duration: this.duration });
+  }
+
+  public static expires(duration: number, unref?: true): Timeout {
+    return new Timeout(undefined, { duration, unref });
+  }
+
+  static override reject(rejection?: Error): Timeout {
+    return new Timeout(undefined, { duration: 0, unref: true, rejection });
+  }
+}
+
+/** @internal */
+export type TimeoutContextOptions = (LegacyTimeoutContextOptions | CSOTTimeoutContextOptions) & {
+  session?: ClientSession;
+};
+
+/** @internal */
+export type LegacyTimeoutContextOptions = {
+  serverSelectionTimeoutMS: number;
+  waitQueueTimeoutMS: number;
+  socketTimeoutMS?: number;
+};
+
+/** @internal */
+export type CSOTTimeoutContextOptions = {
+  timeoutMS: number;
+  serverSelectionTimeoutMS: number;
+  socketTimeoutMS?: number;
+};
+
+function isLegacyTimeoutContextOptions(v: unknown): v is LegacyTimeoutContextOptions {
+  return (
+    v != null &&
+    typeof v === 'object' &&
+    'serverSelectionTimeoutMS' in v &&
+    typeof v.serverSelectionTimeoutMS === 'number' &&
+    'waitQueueTimeoutMS' in v &&
+    typeof v.waitQueueTimeoutMS === 'number'
+  );
+}
+
+function isCSOTTimeoutContextOptions(v: unknown): v is CSOTTimeoutContextOptions {
+  return (
+    v != null &&
+    typeof v === 'object' &&
+    'serverSelectionTimeoutMS' in v &&
+    typeof v.serverSelectionTimeoutMS === 'number' &&
+    'timeoutMS' in v &&
+    typeof v.timeoutMS === 'number'
+  );
+}
+
+/** @internal */
+export abstract class TimeoutContext {
+  static create(options: TimeoutContextOptions): TimeoutContext {
+    if (options.session?.timeoutContext != null) return options.session?.timeoutContext;
+    if (isCSOTTimeoutContextOptions(options)) return new CSOTTimeoutContext(options);
+    else if (isLegacyTimeoutContextOptions(options)) return new LegacyTimeoutContext(options);
+    else throw new MongoRuntimeError('Unrecognized options');
+  }
+
+  abstract get maxTimeMS(): number | null;
+
+  abstract get serverSelectionTimeout(): Timeout | null;
+
+  abstract get connectionCheckoutTimeout(): Timeout | null;
+
+  abstract get clearServerSelectionTimeout(): boolean;
+
+  abstract get timeoutForSocketWrite(): Timeout | null;
+
+  abstract get timeoutForSocketRead(): Timeout | null;
+
+  abstract csotEnabled(): this is CSOTTimeoutContext;
+
+  abstract refresh(): void;
+
+  abstract clear(): void;
+
+  /** Returns a new instance of the TimeoutContext, with all timeouts refreshed and restarted. */
+  abstract refreshed(): TimeoutContext;
+
+  abstract addMaxTimeMSToCommand(command: Document, options: { omitMaxTimeMS?: boolean }): void;
+
+  abstract getSocketTimeoutMS(): number | undefined;
+}
+
+/** @internal */
+export class CSOTTimeoutContext extends TimeoutContext {
+  timeoutMS: number;
+  serverSelectionTimeoutMS: number;
+  socketTimeoutMS?: number;
+
+  clearServerSelectionTimeout: boolean;
+
+  private _serverSelectionTimeout?: Timeout | null;
+  private _connectionCheckoutTimeout?: Timeout | null;
+  public minRoundTripTime = 0;
+  public start: number;
+
+  constructor(options: CSOTTimeoutContextOptions) {
+    super();
+    this.start = Math.trunc(performance.now());
+
+    this.timeoutMS = options.timeoutMS;
+
+    this.serverSelectionTimeoutMS = options.serverSelectionTimeoutMS;
+
+    this.socketTimeoutMS = options.socketTimeoutMS;
+
+    this.clearServerSelectionTimeout = false;
+  }
+
+  get maxTimeMS(): number {
+    return this.remainingTimeMS - this.minRoundTripTime;
+  }
+
+  get remainingTimeMS() {
+    const timePassed = Math.trunc(performance.now()) - this.start;
+    return this.timeoutMS <= 0 ? Infinity : this.timeoutMS - timePassed;
+  }
+
+  csotEnabled(): this is CSOTTimeoutContext {
+    return true;
+  }
+
+  get serverSelectionTimeout(): Timeout | null {
+    // check for undefined
+    if (typeof this._serverSelectionTimeout !== 'object' || this._serverSelectionTimeout?.cleared) {
+      const { remainingTimeMS, serverSelectionTimeoutMS } = this;
+      if (remainingTimeMS <= 0)
+        return Timeout.reject(
+          new MongoOperationTimeoutError(`Timed out in server selection after ${this.timeoutMS}ms`)
+        );
+      const usingServerSelectionTimeoutMS =
+        serverSelectionTimeoutMS !== 0 &&
+        csotMin(remainingTimeMS, serverSelectionTimeoutMS) === serverSelectionTimeoutMS;
+      if (usingServerSelectionTimeoutMS) {
+        this._serverSelectionTimeout = Timeout.expires(serverSelectionTimeoutMS);
+      } else {
+        if (remainingTimeMS > 0 && Number.isFinite(remainingTimeMS)) {
+          this._serverSelectionTimeout = Timeout.expires(remainingTimeMS);
+        } else {
+          this._serverSelectionTimeout = null;
+        }
+      }
+    }
+
+    return this._serverSelectionTimeout;
+  }
+
+  get connectionCheckoutTimeout(): Timeout | null {
+    if (
+      typeof this._connectionCheckoutTimeout !== 'object' ||
+      this._connectionCheckoutTimeout?.cleared
+    ) {
+      if (typeof this._serverSelectionTimeout === 'object') {
+        // null or Timeout
+        this._connectionCheckoutTimeout = this._serverSelectionTimeout;
+      } else {
+        throw new MongoRuntimeError(
+          'Unreachable. If you are seeing this error, please file a ticket on the NODE driver project on Jira'
+        );
+      }
+    }
+    return this._connectionCheckoutTimeout;
+  }
+
+  get timeoutForSocketWrite(): Timeout | null {
+    const { remainingTimeMS } = this;
+    if (!Number.isFinite(remainingTimeMS)) return null;
+    if (remainingTimeMS > 0) return Timeout.expires(remainingTimeMS);
+    return Timeout.reject(new MongoOperationTimeoutError('Timed out before socket write'));
+  }
+
+  get timeoutForSocketRead(): Timeout | null {
+    const { remainingTimeMS } = this;
+    if (!Number.isFinite(remainingTimeMS)) return null;
+    if (remainingTimeMS > 0) return Timeout.expires(remainingTimeMS);
+    return Timeout.reject(new MongoOperationTimeoutError('Timed out before socket read'));
+  }
+
+  refresh(): void {
+    this.start = Math.trunc(performance.now());
+    this.minRoundTripTime = 0;
+    this._serverSelectionTimeout?.clear();
+    this._connectionCheckoutTimeout?.clear();
+  }
+
+  clear(): void {
+    this._serverSelectionTimeout?.clear();
+    this._connectionCheckoutTimeout?.clear();
+  }
+
+  /**
+   * @internal
+   * Throws a MongoOperationTimeoutError if the context has expired.
+   * If the context has not expired, returns the `remainingTimeMS`
+   **/
+  getRemainingTimeMSOrThrow(message?: string): number {
+    const { remainingTimeMS } = this;
+    if (remainingTimeMS <= 0)
+      throw new MongoOperationTimeoutError(message ?? `Expired after ${this.timeoutMS}ms`);
+    return remainingTimeMS;
+  }
+
+  /**
+   * @internal
+   * This method is intended to be used in situations where concurrent operation are on the same deadline, but cannot share a single `TimeoutContext` instance.
+   * Returns a new instance of `CSOTTimeoutContext` constructed with identical options, but setting the `start` property to `this.start`.
+   */
+  clone(): CSOTTimeoutContext {
+    const timeoutContext = new CSOTTimeoutContext({
+      timeoutMS: this.timeoutMS,
+      serverSelectionTimeoutMS: this.serverSelectionTimeoutMS
+    });
+    timeoutContext.start = this.start;
+    return timeoutContext;
+  }
+
+  override refreshed(): CSOTTimeoutContext {
+    return new CSOTTimeoutContext(this);
+  }
+
+  override addMaxTimeMSToCommand(command: Document, options: { omitMaxTimeMS?: boolean }): void {
+    if (options.omitMaxTimeMS) return;
+    const maxTimeMS = this.remainingTimeMS - this.minRoundTripTime;
+    if (maxTimeMS > 0 && Number.isFinite(maxTimeMS)) command.maxTimeMS = maxTimeMS;
+  }
+
+  override getSocketTimeoutMS(): number | undefined {
+    return 0;
+  }
+}
+
+/** @internal */
+export class LegacyTimeoutContext extends TimeoutContext {
+  options: LegacyTimeoutContextOptions;
+  clearServerSelectionTimeout: boolean;
+
+  constructor(options: LegacyTimeoutContextOptions) {
+    super();
+    this.options = options;
+    this.clearServerSelectionTimeout = true;
+  }
+
+  csotEnabled(): this is CSOTTimeoutContext {
+    return false;
+  }
+
+  get serverSelectionTimeout(): Timeout | null {
+    if (this.options.serverSelectionTimeoutMS != null && this.options.serverSelectionTimeoutMS > 0)
+      return Timeout.expires(this.options.serverSelectionTimeoutMS);
+    return null;
+  }
+
+  get connectionCheckoutTimeout(): Timeout | null {
+    if (this.options.waitQueueTimeoutMS != null && this.options.waitQueueTimeoutMS > 0)
+      return Timeout.expires(this.options.waitQueueTimeoutMS);
+    return null;
+  }
+
+  get timeoutForSocketWrite(): Timeout | null {
+    return null;
+  }
+
+  get timeoutForSocketRead(): Timeout | null {
+    return null;
+  }
+
+  refresh(): void {
+    return;
+  }
+
+  clear(): void {
+    return;
+  }
+
+  get maxTimeMS() {
+    return null;
+  }
+
+  override refreshed(): LegacyTimeoutContext {
+    return new LegacyTimeoutContext(this.options);
+  }
+
+  override addMaxTimeMSToCommand(_command: Document, _options: { omitMaxTimeMS?: boolean }): void {
+    // No max timeMS is added to commands in legacy timeout mode.
+  }
+
+  override getSocketTimeoutMS(): number | undefined {
+    return this.options.socketTimeoutMS;
+  }
+}
diff --git a/backend/node_modules/mongodb/src/transactions.ts b/backend/node_modules/mongodb/src/transactions.ts
new file mode 100644
index 0000000..308d0ad
--- /dev/null
+++ b/backend/node_modules/mongodb/src/transactions.ts
@@ -0,0 +1,187 @@
+import type { Document } from './bson';
+import { MongoRuntimeError, MongoTransactionError } from './error';
+import type { CommandOperationOptions } from './operations/command';
+import { ReadConcern, type ReadConcernLike } from './read_concern';
+import { ReadPreference, type ReadPreferenceLike } from './read_preference';
+import type { Server } from './sdam/server';
+import { WriteConcern } from './write_concern';
+
+/** @internal */
+export const TxnState = Object.freeze({
+  NO_TRANSACTION: 'NO_TRANSACTION',
+  STARTING_TRANSACTION: 'STARTING_TRANSACTION',
+  TRANSACTION_IN_PROGRESS: 'TRANSACTION_IN_PROGRESS',
+  TRANSACTION_COMMITTED: 'TRANSACTION_COMMITTED',
+  TRANSACTION_COMMITTED_EMPTY: 'TRANSACTION_COMMITTED_EMPTY',
+  TRANSACTION_ABORTED: 'TRANSACTION_ABORTED'
+} as const);
+
+/** @internal */
+export type TxnState = (typeof TxnState)[keyof typeof TxnState];
+
+const stateMachine: { [state in TxnState]: TxnState[] } = {
+  [TxnState.NO_TRANSACTION]: [TxnState.NO_TRANSACTION, TxnState.STARTING_TRANSACTION],
+  [TxnState.STARTING_TRANSACTION]: [
+    TxnState.TRANSACTION_IN_PROGRESS,
+    TxnState.TRANSACTION_COMMITTED,
+    TxnState.TRANSACTION_COMMITTED_EMPTY,
+    TxnState.TRANSACTION_ABORTED
+  ],
+  [TxnState.TRANSACTION_IN_PROGRESS]: [
+    TxnState.TRANSACTION_IN_PROGRESS,
+    TxnState.TRANSACTION_COMMITTED,
+    TxnState.TRANSACTION_ABORTED
+  ],
+  [TxnState.TRANSACTION_COMMITTED]: [
+    TxnState.TRANSACTION_COMMITTED,
+    TxnState.TRANSACTION_COMMITTED_EMPTY,
+    TxnState.STARTING_TRANSACTION,
+    TxnState.NO_TRANSACTION
+  ],
+  [TxnState.TRANSACTION_ABORTED]: [TxnState.STARTING_TRANSACTION, TxnState.NO_TRANSACTION],
+  [TxnState.TRANSACTION_COMMITTED_EMPTY]: [
+    TxnState.TRANSACTION_COMMITTED_EMPTY,
+    TxnState.NO_TRANSACTION
+  ]
+};
+
+const ACTIVE_STATES: Set<TxnState> = new Set([
+  TxnState.STARTING_TRANSACTION,
+  TxnState.TRANSACTION_IN_PROGRESS
+]);
+
+const COMMITTED_STATES: Set<TxnState> = new Set([
+  TxnState.TRANSACTION_COMMITTED,
+  TxnState.TRANSACTION_COMMITTED_EMPTY,
+  TxnState.TRANSACTION_ABORTED
+]);
+
+/**
+ * Configuration options for a transaction.
+ * @public
+ */
+export interface TransactionOptions extends Omit<CommandOperationOptions, 'timeoutMS'> {
+  // TODO(NODE-3344): These options use the proper class forms of these settings, it should accept the basic enum values too
+  /** A default read concern for commands in this transaction */
+  readConcern?: ReadConcernLike;
+  /** A default writeConcern for commands in this transaction */
+  writeConcern?: WriteConcern;
+  /** A default read preference for commands in this transaction */
+  readPreference?: ReadPreferenceLike;
+  /** Specifies the maximum amount of time to allow a commit action on a transaction to run in milliseconds */
+  maxCommitTimeMS?: number;
+}
+
+/**
+ * @public
+ * A class maintaining state related to a server transaction. Internal Only
+ */
+export class Transaction {
+  /** @internal */
+  state: TxnState;
+  options: TransactionOptions;
+  /** @internal */
+  _pinnedServer?: Server;
+  /** @internal */
+  _recoveryToken?: Document;
+
+  /** Create a transaction @internal */
+  constructor(options?: TransactionOptions) {
+    options = options ?? {};
+    this.state = TxnState.NO_TRANSACTION;
+    this.options = {};
+
+    const writeConcern = WriteConcern.fromOptions(options);
+    if (writeConcern) {
+      if (writeConcern.w === 0) {
+        throw new MongoTransactionError('Transactions do not support unacknowledged write concern');
+      }
+
+      this.options.writeConcern = writeConcern;
+    }
+
+    if (options.readConcern) {
+      this.options.readConcern = ReadConcern.fromOptions(options);
+    }
+
+    if (options.readPreference) {
+      this.options.readPreference = ReadPreference.fromOptions(options);
+    }
+
+    if (options.maxCommitTimeMS) {
+      this.options.maxTimeMS = options.maxCommitTimeMS;
+    }
+
+    // TODO: This isn't technically necessary
+    this._pinnedServer = undefined;
+    this._recoveryToken = undefined;
+  }
+
+  /** @internal */
+  get server(): Server | undefined {
+    return this._pinnedServer;
+  }
+
+  get recoveryToken(): Document | undefined {
+    return this._recoveryToken;
+  }
+
+  get isPinned(): boolean {
+    return !!this.server;
+  }
+
+  /** @returns Whether the transaction has started */
+  get isStarting(): boolean {
+    return this.state === TxnState.STARTING_TRANSACTION;
+  }
+
+  /**
+   * @returns Whether this session is presently in a transaction
+   */
+  get isActive(): boolean {
+    return ACTIVE_STATES.has(this.state);
+  }
+
+  get isCommitted(): boolean {
+    return COMMITTED_STATES.has(this.state);
+  }
+  /**
+   * Transition the transaction in the state machine
+   * @internal
+   * @param nextState - The new state to transition to
+   */
+  transition(nextState: TxnState): void {
+    const nextStates = stateMachine[this.state];
+    if (nextStates && nextStates.includes(nextState)) {
+      this.state = nextState;
+      if (
+        this.state === TxnState.NO_TRANSACTION ||
+        this.state === TxnState.STARTING_TRANSACTION ||
+        this.state === TxnState.TRANSACTION_ABORTED
+      ) {
+        this.unpinServer();
+      }
+      return;
+    }
+
+    throw new MongoRuntimeError(
+      `Attempted illegal state transition from [${this.state}] to [${nextState}]`
+    );
+  }
+
+  /** @internal */
+  pinServer(server: Server): void {
+    if (this.isActive) {
+      this._pinnedServer = server;
+    }
+  }
+
+  /** @internal */
+  unpinServer(): void {
+    this._pinnedServer = undefined;
+  }
+}
+
+export function isTransactionCommand(command: Document): boolean {
+  return !!(command.commitTransaction || command.abortTransaction);
+}
diff --git a/backend/node_modules/mongodb/src/utils.ts b/backend/node_modules/mongodb/src/utils.ts
new file mode 100644
index 0000000..c231616
--- /dev/null
+++ b/backend/node_modules/mongodb/src/utils.ts
@@ -0,0 +1,1470 @@
+import * as crypto from 'crypto';
+import type { SrvRecord } from 'dns';
+import { type EventEmitter } from 'events';
+import { promises as fs } from 'fs';
+import * as http from 'http';
+import { clearTimeout, setTimeout } from 'timers';
+import * as url from 'url';
+import { URL } from 'url';
+import { promisify } from 'util';
+
+import { deserialize, type Document, ObjectId, resolveBSONOptions } from './bson';
+import type { Connection } from './cmap/connection';
+import { MAX_SUPPORTED_WIRE_VERSION } from './cmap/wire_protocol/constants';
+import type { Collection } from './collection';
+import { kDecoratedKeys, LEGACY_HELLO_COMMAND } from './constants';
+import type { AbstractCursor } from './cursor/abstract_cursor';
+import type { FindCursor } from './cursor/find_cursor';
+import type { Db } from './db';
+import {
+  type AnyError,
+  MongoAPIError,
+  MongoCompatibilityError,
+  MongoInvalidArgumentError,
+  MongoNetworkTimeoutError,
+  MongoNotConnectedError,
+  MongoParseError,
+  MongoRuntimeError
+} from './error';
+import type { MongoClient } from './mongo_client';
+import type { CommandOperationOptions, OperationParent } from './operations/command';
+import type { Hint, OperationOptions } from './operations/operation';
+import { ReadConcern } from './read_concern';
+import { ReadPreference } from './read_preference';
+import { ServerType } from './sdam/common';
+import type { Server } from './sdam/server';
+import type { Topology } from './sdam/topology';
+import type { ClientSession } from './sessions';
+import { type TimeoutContextOptions } from './timeout';
+import { WriteConcern } from './write_concern';
+
+/**
+ * MongoDB Driver style callback
+ * @public
+ */
+export type Callback<T = any> = (error?: AnyError, result?: T) => void;
+
+export type AnyOptions = Document;
+
+export const ByteUtils = {
+  toLocalBufferType(this: void, buffer: Buffer | Uint8Array): Buffer {
+    return Buffer.isBuffer(buffer)
+      ? buffer
+      : Buffer.from(buffer.buffer, buffer.byteOffset, buffer.byteLength);
+  },
+
+  equals(this: void, seqA: Uint8Array, seqB: Uint8Array) {
+    return ByteUtils.toLocalBufferType(seqA).equals(seqB);
+  },
+
+  compare(this: void, seqA: Uint8Array, seqB: Uint8Array) {
+    return ByteUtils.toLocalBufferType(seqA).compare(seqB);
+  },
+
+  toBase64(this: void, uint8array: Uint8Array) {
+    return ByteUtils.toLocalBufferType(uint8array).toString('base64');
+  }
+};
+
+/**
+ * Returns true if value is a Uint8Array or a Buffer
+ * @param value - any value that may be a Uint8Array
+ */
+export function isUint8Array(value: unknown): value is Uint8Array {
+  return (
+    value != null &&
+    typeof value === 'object' &&
+    Symbol.toStringTag in value &&
+    value[Symbol.toStringTag] === 'Uint8Array'
+  );
+}
+
+/**
+ * Determines if a connection's address matches a user provided list
+ * of domain wildcards.
+ */
+export function hostMatchesWildcards(host: string, wildcards: string[]): boolean {
+  for (const wildcard of wildcards) {
+    if (
+      host === wildcard ||
+      (wildcard.startsWith('*.') && host?.endsWith(wildcard.substring(2, wildcard.length))) ||
+      (wildcard.startsWith('*/') && host?.endsWith(wildcard.substring(2, wildcard.length)))
+    ) {
+      return true;
+    }
+  }
+  return false;
+}
+
+/**
+ * Ensure Hint field is in a shape we expect:
+ * - object of index names mapping to 1 or -1
+ * - just an index name
+ * @internal
+ */
+export function normalizeHintField(hint?: Hint): Hint | undefined {
+  let finalHint = undefined;
+
+  if (typeof hint === 'string') {
+    finalHint = hint;
+  } else if (Array.isArray(hint)) {
+    finalHint = {};
+
+    hint.forEach(param => {
+      finalHint[param] = 1;
+    });
+  } else if (hint != null && typeof hint === 'object') {
+    finalHint = {} as Document;
+    for (const name in hint) {
+      finalHint[name] = hint[name];
+    }
+  }
+
+  return finalHint;
+}
+
+const TO_STRING = (object: unknown) => Object.prototype.toString.call(object);
+/**
+ * Checks if arg is an Object:
+ * - **NOTE**: the check is based on the `[Symbol.toStringTag]() === 'Object'`
+ * @internal
+ */
+
+export function isObject(arg: unknown): arg is object {
+  return '[object Object]' === TO_STRING(arg);
+}
+
+/** @internal */
+export function mergeOptions<T, S>(target: T, source: S): T & S {
+  return { ...target, ...source };
+}
+
+/** @internal */
+export function filterOptions(options: AnyOptions, names: ReadonlyArray<string>): AnyOptions {
+  const filterOptions: AnyOptions = {};
+
+  for (const name in options) {
+    if (names.includes(name)) {
+      filterOptions[name] = options[name];
+    }
+  }
+
+  // Filtered options
+  return filterOptions;
+}
+
+interface HasRetryableWrites {
+  retryWrites?: boolean;
+}
+/**
+ * Applies retryWrites: true to a command if retryWrites is set on the command's database.
+ * @internal
+ *
+ * @param target - The target command to which we will apply retryWrites.
+ * @param db - The database from which we can inherit a retryWrites value.
+ */
+export function applyRetryableWrites<T extends HasRetryableWrites>(target: T, db?: Db): T {
+  if (db && db.s.options?.retryWrites) {
+    target.retryWrites = true;
+  }
+
+  return target;
+}
+
+/**
+ * Applies a write concern to a command based on well defined inheritance rules, optionally
+ * detecting support for the write concern in the first place.
+ * @internal
+ *
+ * @param target - the target command we will be applying the write concern to
+ * @param sources - sources where we can inherit default write concerns from
+ * @param options - optional settings passed into a command for write concern overrides
+ */
+
+/**
+ * Checks if a given value is a Promise
+ *
+ * @typeParam T - The resolution type of the possible promise
+ * @param value - An object that could be a promise
+ * @returns true if the provided value is a Promise
+ */
+export function isPromiseLike<T = unknown>(value?: unknown): value is PromiseLike<T> {
+  return (
+    value != null &&
+    typeof value === 'object' &&
+    'then' in value &&
+    typeof value.then === 'function'
+  );
+}
+
+/**
+ * Applies collation to a given command.
+ * @internal
+ *
+ * @param command - the command on which to apply collation
+ * @param target - target of command
+ * @param options - options containing collation settings
+ */
+export function decorateWithCollation(
+  command: Document,
+  target: MongoClient | Db | Collection,
+  options: AnyOptions
+): void {
+  const capabilities = getTopology(target).capabilities;
+  if (options.collation && typeof options.collation === 'object') {
+    if (capabilities && capabilities.commandsTakeCollation) {
+      command.collation = options.collation;
+    } else {
+      throw new MongoCompatibilityError(`Current topology does not support collation`);
+    }
+  }
+}
+
+/**
+ * Applies a read concern to a given command.
+ * @internal
+ *
+ * @param command - the command on which to apply the read concern
+ * @param coll - the parent collection of the operation calling this method
+ */
+export function decorateWithReadConcern(
+  command: Document,
+  coll: { s: { readConcern?: ReadConcern } },
+  options?: OperationOptions
+): void {
+  if (options && options.session && options.session.inTransaction()) {
+    return;
+  }
+  const readConcern = Object.assign({}, command.readConcern || {});
+  if (coll.s.readConcern) {
+    Object.assign(readConcern, coll.s.readConcern);
+  }
+
+  if (Object.keys(readConcern).length > 0) {
+    Object.assign(command, { readConcern: readConcern });
+  }
+}
+
+/**
+ * @internal
+ */
+export type TopologyProvider =
+  | MongoClient
+  | ClientSession
+  | FindCursor
+  | AbstractCursor
+  | Collection<any>
+  | Db;
+
+/**
+ * A helper function to get the topology from a given provider. Throws
+ * if the topology cannot be found.
+ * @throws MongoNotConnectedError
+ * @internal
+ */
+export function getTopology(provider: TopologyProvider): Topology {
+  // MongoClient or ClientSession or AbstractCursor
+  if ('topology' in provider && provider.topology) {
+    return provider.topology;
+  } else if ('client' in provider && provider.client.topology) {
+    return provider.client.topology;
+  }
+
+  throw new MongoNotConnectedError('MongoClient must be connected to perform this operation');
+}
+
+/** @internal */
+export function ns(ns: string): MongoDBNamespace {
+  return MongoDBNamespace.fromString(ns);
+}
+
+/** @public */
+export class MongoDBNamespace {
+  /**
+   * Create a namespace object
+   *
+   * @param db - database name
+   * @param collection - collection name
+   */
+  constructor(
+    public db: string,
+    public collection?: string
+  ) {
+    this.collection = collection === '' ? undefined : collection;
+  }
+
+  toString(): string {
+    return this.collection ? `${this.db}.${this.collection}` : this.db;
+  }
+
+  withCollection(collection: string): MongoDBCollectionNamespace {
+    return new MongoDBCollectionNamespace(this.db, collection);
+  }
+
+  static fromString(namespace?: string): MongoDBNamespace {
+    if (typeof namespace !== 'string' || namespace === '') {
+      // TODO(NODE-3483): Replace with MongoNamespaceError
+      throw new MongoRuntimeError(`Cannot parse namespace from "${namespace}"`);
+    }
+
+    const [db, ...collectionParts] = namespace.split('.');
+    const collection = collectionParts.join('.');
+    return new MongoDBNamespace(db, collection === '' ? undefined : collection);
+  }
+}
+
+/**
+ * @public
+ *
+ * A class representing a collection's namespace.  This class enforces (through Typescript) that
+ * the `collection` portion of the namespace is defined and should only be
+ * used in scenarios where this can be guaranteed.
+ */
+export class MongoDBCollectionNamespace extends MongoDBNamespace {
+  constructor(
+    db: string,
+    override collection: string
+  ) {
+    super(db, collection);
+  }
+
+  static override fromString(namespace?: string): MongoDBCollectionNamespace {
+    return super.fromString(namespace) as MongoDBCollectionNamespace;
+  }
+}
+
+/** @internal */
+export function* makeCounter(seed = 0): Generator<number> {
+  let count = seed;
+  while (true) {
+    const newCount = count;
+    count += 1;
+    yield newCount;
+  }
+}
+
+/**
+ * Synchronously Generate a UUIDv4
+ * @internal
+ */
+export function uuidV4(): Buffer {
+  const result = crypto.randomBytes(16);
+  result[6] = (result[6] & 0x0f) | 0x40;
+  result[8] = (result[8] & 0x3f) | 0x80;
+  return result;
+}
+
+/**
+ * A helper function for determining `maxWireVersion` between legacy and new topology instances
+ * @internal
+ */
+export function maxWireVersion(topologyOrServer?: Connection | Topology | Server): number {
+  if (topologyOrServer) {
+    if (topologyOrServer.loadBalanced || topologyOrServer.serverApi?.version) {
+      // Since we do not have a monitor in the load balanced mode,
+      // we assume the load-balanced server is always pointed at the latest mongodb version.
+      // There is a risk that for on-prem deployments
+      // that don't upgrade immediately that this could alert to the
+      // application that a feature is available that is actually not.
+      // We also return the max supported wire version for serverAPI.
+      return MAX_SUPPORTED_WIRE_VERSION;
+    }
+    if (topologyOrServer.hello) {
+      return topologyOrServer.hello.maxWireVersion;
+    }
+
+    if ('lastHello' in topologyOrServer && typeof topologyOrServer.lastHello === 'function') {
+      const lastHello = topologyOrServer.lastHello();
+      if (lastHello) {
+        return lastHello.maxWireVersion;
+      }
+    }
+
+    if (
+      topologyOrServer.description &&
+      'maxWireVersion' in topologyOrServer.description &&
+      topologyOrServer.description.maxWireVersion != null
+    ) {
+      return topologyOrServer.description.maxWireVersion;
+    }
+  }
+
+  return 0;
+}
+
+/** @internal */
+export function arrayStrictEqual(arr: unknown[], arr2: unknown[]): boolean {
+  if (!Array.isArray(arr) || !Array.isArray(arr2)) {
+    return false;
+  }
+
+  return arr.length === arr2.length && arr.every((elt, idx) => elt === arr2[idx]);
+}
+
+/** @internal */
+export function errorStrictEqual(lhs?: AnyError | null, rhs?: AnyError | null): boolean {
+  if (lhs === rhs) {
+    return true;
+  }
+
+  if (!lhs || !rhs) {
+    return lhs === rhs;
+  }
+
+  if ((lhs == null && rhs != null) || (lhs != null && rhs == null)) {
+    return false;
+  }
+
+  if (lhs.constructor.name !== rhs.constructor.name) {
+    return false;
+  }
+
+  if (lhs.message !== rhs.message) {
+    return false;
+  }
+
+  return true;
+}
+
+interface StateTable {
+  [key: string]: string[];
+}
+interface ObjectWithState {
+  s: { state: string };
+  emit(event: 'stateChanged', state: string, newState: string): void;
+}
+interface StateTransitionFunction {
+  (target: ObjectWithState, newState: string): void;
+}
+
+/** @public */
+export type EventEmitterWithState = {
+  /** @internal */
+  stateChanged(previous: string, current: string): void;
+};
+
+/** @internal */
+export function makeStateMachine(stateTable: StateTable): StateTransitionFunction {
+  return function stateTransition(target, newState) {
+    const legalStates = stateTable[target.s.state];
+    if (legalStates && legalStates.indexOf(newState) < 0) {
+      throw new MongoRuntimeError(
+        `illegal state transition from [${target.s.state}] => [${newState}], allowed: [${legalStates}]`
+      );
+    }
+
+    target.emit('stateChanged', target.s.state, newState);
+    target.s.state = newState;
+  };
+}
+
+/** @internal */
+export function now(): number {
+  const hrtime = process.hrtime();
+  return Math.floor(hrtime[0] * 1000 + hrtime[1] / 1000000);
+}
+
+/** @internal */
+export function calculateDurationInMs(started: number | undefined): number {
+  if (typeof started !== 'number') {
+    return -1;
+  }
+
+  const elapsed = now() - started;
+  return elapsed < 0 ? 0 : elapsed;
+}
+
+/** @internal */
+export function hasAtomicOperators(doc: Document | Document[]): boolean {
+  if (Array.isArray(doc)) {
+    for (const document of doc) {
+      if (hasAtomicOperators(document)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  const keys = Object.keys(doc);
+  return keys.length > 0 && keys[0][0] === '$';
+}
+
+export function resolveTimeoutOptions<T extends Partial<TimeoutContextOptions>>(
+  client: MongoClient,
+  options: T
+): T &
+  Pick<
+    MongoClient['s']['options'],
+    'timeoutMS' | 'serverSelectionTimeoutMS' | 'waitQueueTimeoutMS' | 'socketTimeoutMS'
+  > {
+  const { socketTimeoutMS, serverSelectionTimeoutMS, waitQueueTimeoutMS, timeoutMS } =
+    client.s.options;
+  return { socketTimeoutMS, serverSelectionTimeoutMS, waitQueueTimeoutMS, timeoutMS, ...options };
+}
+/**
+ * Merge inherited properties from parent into options, prioritizing values from options,
+ * then values from parent.
+ *
+ * @param parent - An optional owning class of the operation being run. ex. Db/Collection/MongoClient.
+ * @param options - The options passed to the operation method.
+ *
+ * @internal
+ */
+export function resolveOptions<T extends CommandOperationOptions>(
+  parent: OperationParent | undefined,
+  options?: T
+): T {
+  const result: T = Object.assign({}, options, resolveBSONOptions(options, parent));
+
+  const timeoutMS = options?.timeoutMS ?? parent?.timeoutMS;
+  // Users cannot pass a readConcern/writeConcern to operations in a transaction
+  const session = options?.session;
+
+  if (!session?.inTransaction()) {
+    const readConcern = ReadConcern.fromOptions(options) ?? parent?.readConcern;
+    if (readConcern) {
+      result.readConcern = readConcern;
+    }
+
+    let writeConcern = WriteConcern.fromOptions(options) ?? parent?.writeConcern;
+    if (writeConcern) {
+      if (timeoutMS != null) {
+        writeConcern = WriteConcern.fromOptions({
+          ...writeConcern,
+          wtimeout: undefined,
+          wtimeoutMS: undefined
+        });
+      }
+      result.writeConcern = writeConcern;
+    }
+  }
+
+  result.timeoutMS = timeoutMS;
+
+  const readPreference = ReadPreference.fromOptions(options) ?? parent?.readPreference;
+  if (readPreference) {
+    result.readPreference = readPreference;
+  }
+
+  const isConvenientTransaction = session?.explicit && session?.timeoutContext != null;
+  if (isConvenientTransaction && options?.timeoutMS != null) {
+    throw new MongoInvalidArgumentError(
+      'An operation cannot be given a timeoutMS setting when inside a withTransaction call that has a timeoutMS setting'
+    );
+  }
+
+  return result;
+}
+
+export function isSuperset(set: Set<any> | any[], subset: Set<any> | any[]): boolean {
+  set = Array.isArray(set) ? new Set(set) : set;
+  subset = Array.isArray(subset) ? new Set(subset) : subset;
+  for (const elem of subset) {
+    if (!set.has(elem)) {
+      return false;
+    }
+  }
+  return true;
+}
+
+/**
+ * Checks if the document is a Hello request
+ * @internal
+ */
+export function isHello(doc: Document): boolean {
+  return doc[LEGACY_HELLO_COMMAND] || doc.hello ? true : false;
+}
+
+/** Returns the items that are uniquely in setA */
+export function setDifference<T>(setA: Iterable<T>, setB: Iterable<T>): Set<T> {
+  const difference = new Set<T>(setA);
+  for (const elem of setB) {
+    difference.delete(elem);
+  }
+  return difference;
+}
+
+const HAS_OWN = (object: unknown, prop: string) =>
+  Object.prototype.hasOwnProperty.call(object, prop);
+
+export function isRecord<T extends readonly string[]>(
+  value: unknown,
+  requiredKeys: T
+): value is Record<T[number], any>;
+export function isRecord(value: unknown): value is Record<string, any>;
+export function isRecord(
+  value: unknown,
+  requiredKeys: string[] | undefined = undefined
+): value is Record<string, any> {
+  if (!isObject(value)) {
+    return false;
+  }
+
+  const ctor = (value as any).constructor;
+  if (ctor && ctor.prototype) {
+    if (!isObject(ctor.prototype)) {
+      return false;
+    }
+
+    // Check to see if some method exists from the Object exists
+    if (!HAS_OWN(ctor.prototype, 'isPrototypeOf')) {
+      return false;
+    }
+  }
+
+  if (requiredKeys) {
+    const keys = Object.keys(value as Record<string, any>);
+    return isSuperset(keys, requiredKeys);
+  }
+
+  return true;
+}
+
+/**
+ * Make a deep copy of an object
+ *
+ * NOTE: This is not meant to be the perfect implementation of a deep copy,
+ * but instead something that is good enough for the purposes of
+ * command monitoring.
+ */
+export function deepCopy<T>(value: T): T {
+  if (value == null) {
+    return value;
+  } else if (Array.isArray(value)) {
+    return value.map(item => deepCopy(item)) as unknown as T;
+  } else if (isRecord(value)) {
+    const res = {} as any;
+    for (const key in value) {
+      res[key] = deepCopy(value[key]);
+    }
+    return res;
+  }
+
+  const ctor = (value as any).constructor;
+  if (ctor) {
+    switch (ctor.name.toLowerCase()) {
+      case 'date':
+        return new ctor(Number(value));
+      case 'map':
+        return new Map(value as any) as unknown as T;
+      case 'set':
+        return new Set(value as any) as unknown as T;
+      case 'buffer':
+        return Buffer.from(value as unknown as Buffer) as unknown as T;
+    }
+  }
+
+  return value;
+}
+
+type ListNode<T> = {
+  value: T;
+  next: ListNode<T> | HeadNode<T>;
+  prev: ListNode<T> | HeadNode<T>;
+};
+
+type HeadNode<T> = {
+  value: null;
+  next: ListNode<T>;
+  prev: ListNode<T>;
+};
+
+/**
+ * When a list is empty the head is a reference with pointers to itself
+ * So this type represents that self referential state
+ */
+type EmptyNode = {
+  value: null;
+  next: EmptyNode;
+  prev: EmptyNode;
+};
+
+/**
+ * A sequential list of items in a circularly linked list
+ * @remarks
+ * The head node is special, it is always defined and has a value of null.
+ * It is never "included" in the list, in that, it is not returned by pop/shift or yielded by the iterator.
+ * The circular linkage and always defined head node are to reduce checks for null next/prev references to zero.
+ * New nodes are declared as object literals with keys always in the same order: next, prev, value.
+ * @internal
+ */
+export class List<T = unknown> {
+  private readonly head: HeadNode<T> | EmptyNode;
+  private count: number;
+
+  get length() {
+    return this.count;
+  }
+
+  get [Symbol.toStringTag]() {
+    return 'List' as const;
+  }
+
+  constructor() {
+    this.count = 0;
+
+    // this is carefully crafted:
+    // declaring a complete and consistently key ordered
+    // object is beneficial to the runtime optimizations
+    this.head = {
+      next: null,
+      prev: null,
+      value: null
+    } as unknown as EmptyNode;
+    this.head.next = this.head;
+    this.head.prev = this.head;
+  }
+
+  toArray() {
+    return Array.from(this);
+  }
+
+  toString() {
+    return `head <=> ${this.toArray().join(' <=> ')} <=> head`;
+  }
+
+  *[Symbol.iterator](): Generator<T, void, void> {
+    for (const node of this.nodes()) {
+      yield node.value;
+    }
+  }
+
+  private *nodes(): Generator<ListNode<T>, void, void> {
+    let ptr: HeadNode<T> | ListNode<T> | EmptyNode = this.head.next;
+    while (ptr !== this.head) {
+      // Save next before yielding so that we make removing within iteration safe
+      const { next } = ptr as ListNode<T>;
+      yield ptr as ListNode<T>;
+      ptr = next;
+    }
+  }
+
+  /** Insert at end of list */
+  push(value: T) {
+    this.count += 1;
+    const newNode: ListNode<T> = {
+      next: this.head as HeadNode<T>,
+      prev: this.head.prev as ListNode<T>,
+      value
+    };
+    this.head.prev.next = newNode;
+    this.head.prev = newNode;
+  }
+
+  /** Inserts every item inside an iterable instead of the iterable itself */
+  pushMany(iterable: Iterable<T>) {
+    for (const value of iterable) {
+      this.push(value);
+    }
+  }
+
+  /** Insert at front of list */
+  unshift(value: T) {
+    this.count += 1;
+    const newNode: ListNode<T> = {
+      next: this.head.next as ListNode<T>,
+      prev: this.head as HeadNode<T>,
+      value
+    };
+    this.head.next.prev = newNode;
+    this.head.next = newNode;
+  }
+
+  private remove(node: ListNode<T> | EmptyNode): T | null {
+    if (node === this.head || this.length === 0) {
+      return null;
+    }
+
+    this.count -= 1;
+
+    const prevNode = node.prev;
+    const nextNode = node.next;
+    prevNode.next = nextNode;
+    nextNode.prev = prevNode;
+
+    return node.value;
+  }
+
+  /** Removes the first node at the front of the list */
+  shift(): T | null {
+    return this.remove(this.head.next);
+  }
+
+  /** Removes the last node at the end of the list */
+  pop(): T | null {
+    return this.remove(this.head.prev);
+  }
+
+  /** Iterates through the list and removes nodes where filter returns true */
+  prune(filter: (value: T) => boolean) {
+    for (const node of this.nodes()) {
+      if (filter(node.value)) {
+        this.remove(node);
+      }
+    }
+  }
+
+  clear() {
+    this.count = 0;
+    this.head.next = this.head as EmptyNode;
+    this.head.prev = this.head as EmptyNode;
+  }
+
+  /** Returns the first item in the list, does not remove */
+  first(): T | null {
+    // If the list is empty, value will be the head's null
+    return this.head.next.value;
+  }
+
+  /** Returns the last item in the list, does not remove */
+  last(): T | null {
+    // If the list is empty, value will be the head's null
+    return this.head.prev.value;
+  }
+}
+
+/**
+ * A pool of Buffers which allow you to read them as if they were one
+ * @internal
+ */
+export class BufferPool {
+  private buffers: List<Buffer>;
+  private totalByteLength: number;
+
+  constructor() {
+    this.buffers = new List();
+    this.totalByteLength = 0;
+  }
+
+  get length(): number {
+    return this.totalByteLength;
+  }
+
+  /** Adds a buffer to the internal buffer pool list */
+  append(buffer: Buffer): void {
+    this.buffers.push(buffer);
+    this.totalByteLength += buffer.length;
+  }
+
+  /**
+   * If BufferPool contains 4 bytes or more construct an int32 from the leading bytes,
+   * otherwise return null. Size can be negative, caller should error check.
+   */
+  getInt32(): number | null {
+    if (this.totalByteLength < 4) {
+      return null;
+    }
+    const firstBuffer = this.buffers.first();
+    if (firstBuffer != null && firstBuffer.byteLength >= 4) {
+      return firstBuffer.readInt32LE(0);
+    }
+
+    // Unlikely case: an int32 is split across buffers.
+    // Use read and put the returned buffer back on top
+    const top4Bytes = this.read(4);
+    const value = top4Bytes.readInt32LE(0);
+
+    // Put it back.
+    this.totalByteLength += 4;
+    this.buffers.unshift(top4Bytes);
+
+    return value;
+  }
+
+  /** Reads the requested number of bytes, optionally consuming them */
+  read(size: number): Buffer {
+    if (typeof size !== 'number' || size < 0) {
+      throw new MongoInvalidArgumentError('Argument "size" must be a non-negative number');
+    }
+
+    // oversized request returns empty buffer
+    if (size > this.totalByteLength) {
+      return Buffer.alloc(0);
+    }
+
+    // We know we have enough, we just don't know how it is spread across chunks
+    // TODO(NODE-4732): alloc API should change based on raw option
+    const result = Buffer.allocUnsafe(size);
+
+    for (let bytesRead = 0; bytesRead < size; ) {
+      const buffer = this.buffers.shift();
+      if (buffer == null) {
+        break;
+      }
+      const bytesRemaining = size - bytesRead;
+      const bytesReadable = Math.min(bytesRemaining, buffer.byteLength);
+      const bytes = buffer.subarray(0, bytesReadable);
+
+      result.set(bytes, bytesRead);
+
+      bytesRead += bytesReadable;
+      this.totalByteLength -= bytesReadable;
+      if (bytesReadable < buffer.byteLength) {
+        this.buffers.unshift(buffer.subarray(bytesReadable));
+      }
+    }
+
+    return result;
+  }
+}
+
+/** @public */
+export class HostAddress {
+  host: string | undefined = undefined;
+  port: number | undefined = undefined;
+  socketPath: string | undefined = undefined;
+  isIPv6 = false;
+
+  constructor(hostString: string) {
+    const escapedHost = hostString.split(' ').join('%20'); // escape spaces, for socket path hosts
+
+    if (escapedHost.endsWith('.sock')) {
+      // heuristically determine if we're working with a domain socket
+      this.socketPath = decodeURIComponent(escapedHost);
+      return;
+    }
+
+    const urlString = `iLoveJS://${escapedHost}`;
+    let url;
+    try {
+      url = new URL(urlString);
+    } catch (urlError) {
+      const runtimeError = new MongoRuntimeError(`Unable to parse ${escapedHost} with URL`);
+      runtimeError.cause = urlError;
+      throw runtimeError;
+    }
+
+    const hostname = url.hostname;
+    const port = url.port;
+
+    let normalized = decodeURIComponent(hostname).toLowerCase();
+    if (normalized.startsWith('[') && normalized.endsWith(']')) {
+      this.isIPv6 = true;
+      normalized = normalized.substring(1, hostname.length - 1);
+    }
+
+    this.host = normalized.toLowerCase();
+
+    if (typeof port === 'number') {
+      this.port = port;
+    } else if (typeof port === 'string' && port !== '') {
+      this.port = Number.parseInt(port, 10);
+    } else {
+      this.port = 27017;
+    }
+
+    if (this.port === 0) {
+      throw new MongoParseError('Invalid port (zero) with hostname');
+    }
+    Object.freeze(this);
+  }
+
+  [Symbol.for('nodejs.util.inspect.custom')](): string {
+    return this.inspect();
+  }
+
+  inspect(): string {
+    return `new HostAddress('${this.toString()}')`;
+  }
+
+  toString(): string {
+    if (typeof this.host === 'string') {
+      if (this.isIPv6) {
+        return `[${this.host}]:${this.port}`;
+      }
+      return `${this.host}:${this.port}`;
+    }
+    return `${this.socketPath}`;
+  }
+
+  static fromString(this: void, s: string): HostAddress {
+    return new HostAddress(s);
+  }
+
+  static fromHostPort(host: string, port: number): HostAddress {
+    if (host.includes(':')) {
+      host = `[${host}]`; // IPv6 address
+    }
+    return HostAddress.fromString(`${host}:${port}`);
+  }
+
+  static fromSrvRecord({ name, port }: SrvRecord): HostAddress {
+    return HostAddress.fromHostPort(name, port);
+  }
+
+  toHostPort(): { host: string; port: number } {
+    if (this.socketPath) {
+      return { host: this.socketPath, port: 0 };
+    }
+
+    const host = this.host ?? '';
+    const port = this.port ?? 0;
+    return { host, port };
+  }
+}
+
+export const DEFAULT_PK_FACTORY = {
+  // We prefer not to rely on ObjectId having a createPk method
+  createPk(): ObjectId {
+    return new ObjectId();
+  }
+};
+
+/**
+ * When the driver used emitWarning the code will be equal to this.
+ * @public
+ *
+ * @example
+ * ```ts
+ * process.on('warning', (warning) => {
+ *  if (warning.code === MONGODB_WARNING_CODE) console.error('Ah an important warning! :)')
+ * })
+ * ```
+ */
+export const MONGODB_WARNING_CODE = 'MONGODB DRIVER';
+
+/** @internal */
+export function emitWarning(message: string): void {
+  return process.emitWarning(message, { code: MONGODB_WARNING_CODE } as any);
+}
+
+const emittedWarnings = new Set();
+/**
+ * Will emit a warning once for the duration of the application.
+ * Uses the message to identify if it has already been emitted
+ * so using string interpolation can cause multiple emits
+ * @internal
+ */
+export function emitWarningOnce(message: string): void {
+  if (!emittedWarnings.has(message)) {
+    emittedWarnings.add(message);
+    return emitWarning(message);
+  }
+}
+
+/**
+ * Takes a JS object and joins the values into a string separated by ', '
+ */
+export function enumToString(en: Record<string, unknown>): string {
+  return Object.values(en).join(', ');
+}
+
+/**
+ * Determine if a server supports retryable writes.
+ *
+ * @internal
+ */
+export function supportsRetryableWrites(server?: Server): boolean {
+  if (!server) {
+    return false;
+  }
+
+  if (server.loadBalanced) {
+    // Loadbalanced topologies will always support retry writes
+    return true;
+  }
+
+  if (server.description.logicalSessionTimeoutMinutes != null) {
+    // that supports sessions
+    if (server.description.type !== ServerType.Standalone) {
+      // and that is not a standalone
+      return true;
+    }
+  }
+
+  return false;
+}
+
+/**
+ * Fisher–Yates Shuffle
+ *
+ * Reference: https://bost.ocks.org/mike/shuffle/
+ * @param sequence - items to be shuffled
+ * @param limit - Defaults to `0`. If nonzero shuffle will slice the randomized array e.g, `.slice(0, limit)` otherwise will return the entire randomized array.
+ */
+export function shuffle<T>(sequence: Iterable<T>, limit = 0): Array<T> {
+  const items = Array.from(sequence); // shallow copy in order to never shuffle the input
+
+  if (limit > items.length) {
+    throw new MongoRuntimeError('Limit must be less than the number of items');
+  }
+
+  let remainingItemsToShuffle = items.length;
+  const lowerBound = limit % items.length === 0 ? 1 : items.length - limit;
+  while (remainingItemsToShuffle > lowerBound) {
+    // Pick a remaining element
+    const randomIndex = Math.floor(Math.random() * remainingItemsToShuffle);
+    remainingItemsToShuffle -= 1;
+
+    // And swap it with the current element
+    const swapHold = items[remainingItemsToShuffle];
+    items[remainingItemsToShuffle] = items[randomIndex];
+    items[randomIndex] = swapHold;
+  }
+
+  return limit % items.length === 0 ? items : items.slice(lowerBound);
+}
+
+/**
+ * TODO(NODE-4936): read concern eligibility for commands should be codified in command construction
+ * @internal
+ * @see https://github.com/mongodb/specifications/blob/master/source/read-write-concern/read-write-concern.md#read-concern
+ */
+export function commandSupportsReadConcern(command: Document): boolean {
+  if (command.aggregate || command.count || command.distinct || command.find || command.geoNear) {
+    return true;
+  }
+
+  return false;
+}
+
+/**
+ * Compare objectIds. `null` is always less
+ * - `+1 = oid1 is greater than oid2`
+ * - `-1 = oid1 is less than oid2`
+ * - `+0 = oid1 is equal oid2`
+ */
+export function compareObjectId(oid1?: ObjectId | null, oid2?: ObjectId | null): 0 | 1 | -1 {
+  if (oid1 == null && oid2 == null) {
+    return 0;
+  }
+
+  if (oid1 == null) {
+    return -1;
+  }
+
+  if (oid2 == null) {
+    return 1;
+  }
+
+  return ByteUtils.compare(oid1.id, oid2.id);
+}
+
+export function parseInteger(value: unknown): number | null {
+  if (typeof value === 'number') return Math.trunc(value);
+  const parsedValue = Number.parseInt(String(value), 10);
+
+  return Number.isNaN(parsedValue) ? null : parsedValue;
+}
+
+export function parseUnsignedInteger(value: unknown): number | null {
+  const parsedInt = parseInteger(value);
+
+  return parsedInt != null && parsedInt >= 0 ? parsedInt : null;
+}
+
+/**
+ * This function throws a MongoAPIError in the event that either of the following is true:
+ * * If the provided address domain does not match the provided parent domain
+ * * If the parent domain contains less than three `.` separated parts and the provided address does not contain at least one more domain level than its parent
+ *
+ * If a DNS server were to become compromised SRV records would still need to
+ * advertise addresses that are under the same domain as the srvHost.
+ *
+ * @param address - The address to check against a domain
+ * @param srvHost - The domain to check the provided address against
+ * @returns void
+ */
+export function checkParentDomainMatch(address: string, srvHost: string): void {
+  // Remove trailing dot if exists on either the resolved address or the srv hostname
+  const normalizedAddress = address.endsWith('.') ? address.slice(0, address.length - 1) : address;
+  const normalizedSrvHost = srvHost.endsWith('.') ? srvHost.slice(0, srvHost.length - 1) : srvHost;
+
+  const allCharacterBeforeFirstDot = /^.*?\./;
+  const srvIsLessThanThreeParts = normalizedSrvHost.split('.').length < 3;
+  // Remove all characters before first dot
+  // Add leading dot back to string so
+  //   an srvHostDomain = '.trusted.site'
+  //   will not satisfy an addressDomain that endsWith '.fake-trusted.site'
+  const addressDomain = `.${normalizedAddress.replace(allCharacterBeforeFirstDot, '')}`;
+  let srvHostDomain = srvIsLessThanThreeParts
+    ? normalizedSrvHost
+    : `.${normalizedSrvHost.replace(allCharacterBeforeFirstDot, '')}`;
+
+  if (!srvHostDomain.startsWith('.')) {
+    srvHostDomain = '.' + srvHostDomain;
+  }
+  if (
+    srvIsLessThanThreeParts &&
+    normalizedAddress.split('.').length <= normalizedSrvHost.split('.').length
+  ) {
+    throw new MongoAPIError(
+      'Server record does not have at least one more domain level than parent URI'
+    );
+  }
+  if (!addressDomain.endsWith(srvHostDomain)) {
+    throw new MongoAPIError('Server record does not share hostname with parent URI');
+  }
+}
+
+interface RequestOptions {
+  json?: boolean;
+  method?: string;
+  timeout?: number;
+  headers?: http.OutgoingHttpHeaders;
+}
+
+/**
+ * Perform a get request that returns status and body.
+ * @internal
+ */
+export function get(
+  url: URL | string,
+  options: http.RequestOptions = {}
+): Promise<{ body: string; status: number | undefined }> {
+  return new Promise((resolve, reject) => {
+    /* eslint-disable prefer-const */
+    let timeoutId: NodeJS.Timeout;
+    const request = http
+      .get(url, options, response => {
+        response.setEncoding('utf8');
+        let body = '';
+        response.on('data', chunk => (body += chunk));
+        response.on('end', () => {
+          clearTimeout(timeoutId);
+          resolve({ status: response.statusCode, body });
+        });
+      })
+      .on('error', error => {
+        clearTimeout(timeoutId);
+        reject(error);
+      })
+      .end();
+    timeoutId = setTimeout(() => {
+      request.destroy(new MongoNetworkTimeoutError(`request timed out after 10 seconds`));
+    }, 10000);
+  });
+}
+
+export async function request(uri: string): Promise<Record<string, any>>;
+export async function request(
+  uri: string,
+  options?: { json?: true } & RequestOptions
+): Promise<Record<string, any>>;
+export async function request(
+  uri: string,
+  options?: { json: false } & RequestOptions
+): Promise<string>;
+export async function request(
+  uri: string,
+  options: RequestOptions = {}
+): Promise<string | Record<string, any>> {
+  return await new Promise<string | Record<string, any>>((resolve, reject) => {
+    const requestOptions = {
+      method: 'GET',
+      timeout: 10000,
+      json: true,
+      ...url.parse(uri),
+      ...options
+    };
+
+    const req = http.request(requestOptions, res => {
+      res.setEncoding('utf8');
+
+      let data = '';
+      res.on('data', d => {
+        data += d;
+      });
+
+      res.once('end', () => {
+        if (options.json === false) {
+          resolve(data);
+          return;
+        }
+
+        try {
+          const parsed = JSON.parse(data);
+          resolve(parsed);
+        } catch {
+          // TODO(NODE-3483)
+          reject(new MongoRuntimeError(`Invalid JSON response: "${data}"`));
+        }
+      });
+    });
+
+    req.once('timeout', () =>
+      req.destroy(
+        new MongoNetworkTimeoutError(
+          `Network request to ${uri} timed out after ${options.timeout} ms`
+        )
+      )
+    );
+    req.once('error', error => reject(error));
+    req.end();
+  });
+}
+
+/** @internal */
+export const DOCUMENT_DB_CHECK = /(\.docdb\.amazonaws\.com$)|(\.docdb-elastic\.amazonaws\.com$)/;
+/** @internal */
+export const COSMOS_DB_CHECK = /\.cosmos\.azure\.com$/;
+
+/** @internal */
+export const DOCUMENT_DB_MSG =
+  'You appear to be connected to a DocumentDB cluster. For more information regarding feature compatibility and support please visit https://www.mongodb.com/supportability/documentdb';
+/** @internal */
+export const COSMOS_DB_MSG =
+  'You appear to be connected to a CosmosDB cluster. For more information regarding feature compatibility and support please visit https://www.mongodb.com/supportability/cosmosdb';
+
+/** @internal */
+export function isHostMatch(match: RegExp, host?: string): boolean {
+  return host && match.test(host.toLowerCase()) ? true : false;
+}
+
+export function promiseWithResolvers<T>(): {
+  promise: Promise<T>;
+  resolve: (value: T) => void;
+  reject: (error: Error) => void;
+} {
+  let resolve!: (value: T) => void;
+  let reject!: (error: Error) => void;
+  const promise = new Promise<T>(function withResolversExecutor(promiseResolve, promiseReject) {
+    resolve = promiseResolve;
+    reject = promiseReject;
+  });
+  return { promise, resolve, reject } as const;
+}
+
+/**
+ * A noop function intended for use in preventing unhandled rejections.
+ *
+ * @example
+ * ```js
+ * const promise = myAsyncTask();
+ * // eslint-disable-next-line github/no-then
+ * promise.then(undefined, squashError);
+ * ```
+ */
+export function squashError(_error: unknown) {
+  return;
+}
+
+export const randomBytes = promisify(crypto.randomBytes);
+
+/**
+ * Replicates the events.once helper.
+ *
+ * Removes unused signal logic and It **only** supports 0 or 1 argument events.
+ *
+ * @param ee - An event emitter that may emit `ev`
+ * @param name - An event name to wait for
+ */
+export async function once<T>(ee: EventEmitter, name: string): Promise<T> {
+  const { promise, resolve, reject } = promiseWithResolvers<T>();
+  const onEvent = (data: T) => resolve(data);
+  const onError = (error: Error) => reject(error);
+
+  ee.once(name, onEvent).once('error', onError);
+  try {
+    const res = await promise;
+    ee.off('error', onError);
+    return res;
+  } catch (error) {
+    ee.off(name, onEvent);
+    throw error;
+  }
+}
+
+export function maybeAddIdToDocuments(
+  coll: Collection,
+  docs: Document[],
+  options: { forceServerObjectId?: boolean }
+): Document[];
+export function maybeAddIdToDocuments(
+  coll: Collection,
+  docs: Document,
+  options: { forceServerObjectId?: boolean }
+): Document;
+export function maybeAddIdToDocuments(
+  coll: Collection,
+  docOrDocs: Document[] | Document,
+  options: { forceServerObjectId?: boolean }
+): Document[] | Document {
+  const forceServerObjectId =
+    typeof options.forceServerObjectId === 'boolean'
+      ? options.forceServerObjectId
+      : coll.s.db.options?.forceServerObjectId;
+
+  // no need to modify the docs if server sets the ObjectId
+  if (forceServerObjectId === true) {
+    return docOrDocs;
+  }
+
+  const transform = (doc: Document): Document => {
+    if (doc._id == null) {
+      doc._id = coll.s.pkFactory.createPk();
+    }
+
+    return doc;
+  };
+  return Array.isArray(docOrDocs) ? docOrDocs.map(transform) : transform(docOrDocs);
+}
+
+export async function fileIsAccessible(fileName: string, mode?: number) {
+  try {
+    await fs.access(fileName, mode);
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+export function csotMin(duration1: number, duration2: number): number {
+  if (duration1 === 0) return duration2;
+  if (duration2 === 0) return duration1;
+  return Math.min(duration1, duration2);
+}
+
+export function noop() {
+  return;
+}
+
+/**
+ * Recurse through the (identically-shaped) `decrypted` and `original`
+ * objects and attach a `decryptedKeys` property on each sub-object that
+ * contained encrypted fields. Because we only call this on BSON responses,
+ * we do not need to worry about circular references.
+ *
+ * @internal
+ */
+export function decorateDecryptionResult(
+  decrypted: Document & { [kDecoratedKeys]?: Array<string> },
+  original: Document,
+  isTopLevelDecorateCall = true
+): void {
+  if (isTopLevelDecorateCall) {
+    // The original value could have been either a JS object or a BSON buffer
+    if (Buffer.isBuffer(original)) {
+      original = deserialize(original);
+    }
+    if (Buffer.isBuffer(decrypted)) {
+      throw new MongoRuntimeError('Expected result of decryption to be deserialized BSON object');
+    }
+  }
+
+  if (!decrypted || typeof decrypted !== 'object') return;
+  for (const k of Object.keys(decrypted)) {
+    const originalValue = original[k];
+
+    // An object was decrypted by libmongocrypt if and only if it was
+    // a BSON Binary object with subtype 6.
+    if (originalValue && originalValue._bsontype === 'Binary' && originalValue.sub_type === 6) {
+      if (!decrypted[kDecoratedKeys]) {
+        Object.defineProperty(decrypted, kDecoratedKeys, {
+          value: [],
+          configurable: true,
+          enumerable: false,
+          writable: false
+        });
+      }
+      // this is defined in the preceding if-statement
+      // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+      decrypted[kDecoratedKeys]!.push(k);
+      // Do not recurse into this decrypted value. It could be a sub-document/array,
+      // in which case there is no original value associated with its subfields.
+      continue;
+    }
+
+    decorateDecryptionResult(decrypted[k], originalValue, false);
+  }
+}
diff --git a/backend/node_modules/mongodb/src/write_concern.ts b/backend/node_modules/mongodb/src/write_concern.ts
new file mode 100644
index 0000000..6326f15
--- /dev/null
+++ b/backend/node_modules/mongodb/src/write_concern.ts
@@ -0,0 +1,185 @@
+import { type Document } from './bson';
+import { MongoDBResponse } from './cmap/wire_protocol/responses';
+import { MongoWriteConcernError } from './error';
+
+/** @public */
+export type W = number | 'majority';
+
+/** @public */
+export interface WriteConcernOptions {
+  /** Write Concern as an object */
+  writeConcern?: WriteConcern | WriteConcernSettings;
+}
+
+/** @public */
+export interface WriteConcernSettings {
+  /** The write concern */
+  w?: W;
+  /**
+   * The write concern timeout.
+   */
+  wtimeoutMS?: number;
+  /** The journal write concern */
+  journal?: boolean;
+
+  // legacy options
+  /**
+   * The journal write concern.
+   * @deprecated Will be removed in the next major version. Please use the journal option.
+   */
+  j?: boolean;
+  /**
+   * The write concern timeout.
+   */
+  wtimeout?: number;
+  /**
+   * The file sync write concern.
+   * @deprecated Will be removed in the next major version. Please use the journal option.
+   */
+  fsync?: boolean | 1;
+}
+
+export const WRITE_CONCERN_KEYS = ['w', 'wtimeout', 'j', 'journal', 'fsync'];
+
+/** The write concern options that decorate the server command. */
+interface CommandWriteConcernOptions {
+  /** The write concern */
+  w?: W;
+  /** The journal write concern. */
+  j?: boolean;
+  /** The write concern timeout. */
+  wtimeout?: number;
+}
+
+/**
+ * A MongoDB WriteConcern, which describes the level of acknowledgement
+ * requested from MongoDB for write operations.
+ * @public
+ *
+ * @see https://www.mongodb.com/docs/manual/reference/write-concern/
+ */
+export class WriteConcern {
+  /**
+   * Request acknowledgment that the write operation has propagated to a specified number of mongod instances or to mongod instances with specified tags.
+   * If w is 0 and is set on a write operation, the server will not send a response.
+   */
+  readonly w?: W;
+  /** Request acknowledgment that the write operation has been written to the on-disk journal */
+  readonly journal?: boolean;
+  /**
+   * Specify a time limit to prevent write operations from blocking indefinitely.
+   */
+  readonly wtimeoutMS?: number;
+  /**
+   * Specify a time limit to prevent write operations from blocking indefinitely.
+   * @deprecated Will be removed in the next major version. Please use wtimeoutMS.
+   */
+  wtimeout?: number;
+  /**
+   * Request acknowledgment that the write operation has been written to the on-disk journal.
+   * @deprecated Will be removed in the next major version. Please use journal.
+   */
+  j?: boolean;
+  /**
+   * Equivalent to the j option.
+   * @deprecated Will be removed in the next major version. Please use journal.
+   */
+  fsync?: boolean | 1;
+
+  /**
+   * Constructs a WriteConcern from the write concern properties.
+   * @param w - request acknowledgment that the write operation has propagated to a specified number of mongod instances or to mongod instances with specified tags.
+   * @param wtimeoutMS - specify a time limit to prevent write operations from blocking indefinitely
+   * @param journal - request acknowledgment that the write operation has been written to the on-disk journal
+   * @param fsync - equivalent to the j option. Is deprecated and will be removed in the next major version.
+   */
+  constructor(w?: W, wtimeoutMS?: number, journal?: boolean, fsync?: boolean | 1) {
+    if (w != null) {
+      if (!Number.isNaN(Number(w))) {
+        this.w = Number(w);
+      } else {
+        this.w = w;
+      }
+    }
+    if (wtimeoutMS != null) {
+      this.wtimeoutMS = this.wtimeout = wtimeoutMS;
+    }
+    if (journal != null) {
+      this.journal = this.j = journal;
+    }
+    if (fsync != null) {
+      this.journal = this.j = fsync ? true : false;
+    }
+  }
+
+  /**
+   * Apply a write concern to a command document. Will modify and return the command.
+   */
+  static apply(command: Document, writeConcern: WriteConcern): Document {
+    const wc: CommandWriteConcernOptions = {};
+    // The write concern document sent to the server has w/wtimeout/j fields.
+    if (writeConcern.w != null) wc.w = writeConcern.w;
+    if (writeConcern.wtimeoutMS != null) wc.wtimeout = writeConcern.wtimeoutMS;
+    if (writeConcern.journal != null) wc.j = writeConcern.j;
+    command.writeConcern = wc;
+    return command;
+  }
+
+  /** Construct a WriteConcern given an options object. */
+  static fromOptions(
+    options?: WriteConcernOptions | WriteConcern | W,
+    inherit?: WriteConcernOptions | WriteConcern
+  ): WriteConcern | undefined {
+    if (options == null) return undefined;
+    inherit = inherit ?? {};
+    let opts: WriteConcernSettings | WriteConcern | undefined;
+    if (typeof options === 'string' || typeof options === 'number') {
+      opts = { w: options };
+    } else if (options instanceof WriteConcern) {
+      opts = options;
+    } else {
+      opts = options.writeConcern;
+    }
+    const parentOpts: WriteConcern | WriteConcernSettings | undefined =
+      inherit instanceof WriteConcern ? inherit : inherit.writeConcern;
+
+    const {
+      w = undefined,
+      wtimeout = undefined,
+      j = undefined,
+      fsync = undefined,
+      journal = undefined,
+      wtimeoutMS = undefined
+    } = {
+      ...parentOpts,
+      ...opts
+    };
+    if (
+      w != null ||
+      wtimeout != null ||
+      wtimeoutMS != null ||
+      j != null ||
+      journal != null ||
+      fsync != null
+    ) {
+      return new WriteConcern(w, wtimeout ?? wtimeoutMS, j ?? journal, fsync);
+    }
+    return undefined;
+  }
+}
+
+/** Called with either a plain object or MongoDBResponse */
+export function throwIfWriteConcernError(response: unknown): void {
+  if (typeof response === 'object' && response != null) {
+    const writeConcernError: object | null =
+      MongoDBResponse.is(response) && response.has('writeConcernError')
+        ? response.toObject()
+        : !MongoDBResponse.is(response) && 'writeConcernError' in response
+          ? response
+          : null;
+
+    if (writeConcernError != null) {
+      throw new MongoWriteConcernError(writeConcernError as any);
+    }
+  }
+}
diff --git a/backend/node_modules/mongodb/tsconfig.json b/backend/node_modules/mongodb/tsconfig.json
new file mode 100644
index 0000000..942a6b8
--- /dev/null
+++ b/backend/node_modules/mongodb/tsconfig.json
@@ -0,0 +1,47 @@
+{
+  "compilerOptions": {
+    "allowJs": true,
+    "checkJs": false,
+    "strict": true,
+    "alwaysStrict": true,
+    "target": "ES2021",
+    "module": "commonJS",
+    "moduleResolution": "node",
+    "skipLibCheck": true,
+    "lib": [
+      "es2021",
+      "ES2022.Error",
+      "ES2022.Object"
+    ],
+    // We don't make use of tslib helpers, all syntax used is supported by target engine
+    "importHelpers": false,
+    "noEmitHelpers": true,
+    // Never emit error filled code
+    "noEmitOnError": true,
+    "outDir": "lib",
+    // We want the sourcemaps in a separate file
+    "inlineSourceMap": false,
+    "sourceMap": true,
+    // API-Extractor uses declaration maps to report problems in source, no need to distribute
+    "declaration": true,
+    "declarationMap": true,
+    // we include sources in the release
+    "inlineSources": false,
+    // Prevents web types from being suggested by vscode.
+    "types": [
+      "node"
+    ],
+    "forceConsistentCasingInFileNames": true,
+    "noImplicitOverride": true,
+    "noImplicitReturns": true,
+    // TODO(NODE-3659): Enable useUnknownInCatchVariables and add type assertions or remove unnecessary catch blocks
+    "useUnknownInCatchVariables": false
+  },
+  "ts-node": {
+    "transpileOnly": true,
+    "compiler": "typescript-cached-transpile"
+  },
+  "include": [
+    "src/**/*"
+  ]
+}
diff --git a/backend/node_modules/mongoose/LICENSE.md b/backend/node_modules/mongoose/LICENSE.md
new file mode 100644
index 0000000..54b4a4c
--- /dev/null
+++ b/backend/node_modules/mongoose/LICENSE.md
@@ -0,0 +1,22 @@
+# MIT License
+
+Copyright (c) 2010-2013 LearnBoost <dev@learnboost.com>
+Copyright (c) 2013-2021 Automattic
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/mongoose/README.md b/backend/node_modules/mongoose/README.md
new file mode 100644
index 0000000..b8f0836
--- /dev/null
+++ b/backend/node_modules/mongoose/README.md
@@ -0,0 +1,375 @@
+# Mongoose
+
+Mongoose is a [MongoDB](https://www.mongodb.org/) object modeling tool designed to work in an asynchronous environment. Mongoose supports [Node.js](https://nodejs.org/en/) and [Deno](https://deno.land/) (alpha).
+
+[![Build Status](https://github.com/Automattic/mongoose/workflows/Test/badge.svg)](https://github.com/Automattic/mongoose)
+[![NPM version](https://badge.fury.io/js/mongoose.svg)](http://badge.fury.io/js/mongoose)
+[![Deno version](https://deno.land/badge/mongoose/version)](https://deno.land/x/mongoose)
+[![Deno popularity](https://deno.land/badge/mongoose/popularity)](https://deno.land/x/mongoose)
+
+[![npm](https://nodei.co/npm/mongoose.png)](https://www.npmjs.com/package/mongoose)
+
+## Documentation
+
+The official documentation website is [mongoosejs.com](http://mongoosejs.com/).
+
+Mongoose 8.0.0 was released on October 31, 2023. You can find more details on [backwards breaking changes in 8.0.0 on our docs site](https://mongoosejs.com/docs/migrating_to_8.html).
+
+## Support
+
+* [Stack Overflow](http://stackoverflow.com/questions/tagged/mongoose)
+* [Bug Reports](https://github.com/Automattic/mongoose/issues/)
+* [Mongoose Slack Channel](http://slack.mongoosejs.io/)
+* [Help Forum](http://groups.google.com/group/mongoose-orm)
+* [MongoDB Support](https://www.mongodb.com/docs/manual/support/)
+
+## Plugins
+
+Check out the [plugins search site](http://plugins.mongoosejs.io/) to see hundreds of related modules from the community. Next, learn how to write your own plugin from the [docs](http://mongoosejs.com/docs/plugins.html) or [this blog post](http://thecodebarbarian.com/2015/03/06/guide-to-mongoose-plugins).
+
+## Contributors
+
+Pull requests are always welcome! Please base pull requests against the `master`
+branch and follow the [contributing guide](https://github.com/Automattic/mongoose/blob/master/CONTRIBUTING.md).
+
+If your pull requests makes documentation changes, please do **not**
+modify any `.html` files. The `.html` files are compiled code, so please make
+your changes in `docs/*.pug`, `lib/*.js`, or `test/docs/*.js`.
+
+View all 400+ [contributors](https://github.com/Automattic/mongoose/graphs/contributors).
+
+## Installation
+
+First install [Node.js](http://nodejs.org/) and [MongoDB](https://www.mongodb.org/downloads). Then:
+
+```sh
+npm install mongoose
+```
+
+Mongoose 6.8.0 also includes alpha support for [Deno](https://deno.land/).
+
+## Importing
+
+```javascript
+// Using Node.js `require()`
+const mongoose = require('mongoose');
+
+// Using ES6 imports
+import mongoose from 'mongoose';
+```
+
+Or, using [Deno's `createRequire()` for CommonJS support](https://deno.land/std@0.113.0/node/README.md?source=#commonjs-modules-loading) as follows.
+
+```javascript
+import { createRequire } from 'https://deno.land/std@0.177.0/node/module.ts';
+const require = createRequire(import.meta.url);
+
+const mongoose = require('mongoose');
+
+mongoose.connect('mongodb://127.0.0.1:27017/test')
+  .then(() => console.log('Connected!'));
+```
+
+You can then run the above script using the following.
+
+```sh
+deno run --allow-net --allow-read --allow-sys --allow-env mongoose-test.js
+```
+
+## Mongoose for Enterprise
+
+Available as part of the Tidelift Subscription
+
+The maintainers of mongoose and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. [Learn more.](https://tidelift.com/subscription/pkg/npm-mongoose?utm_source=npm-mongoose&utm_medium=referral&utm_campaign=enterprise&utm_term=repo)
+
+## Overview
+
+### Connecting to MongoDB
+
+First, we need to define a connection. If your app uses only one database, you should use `mongoose.connect`. If you need to create additional connections, use `mongoose.createConnection`.
+
+Both `connect` and `createConnection` take a `mongodb://` URI, or the parameters `host, database, port, options`.
+
+```js
+await mongoose.connect('mongodb://127.0.0.1/my_database');
+```
+
+Once connected, the `open` event is fired on the `Connection` instance. If you're using `mongoose.connect`, the `Connection` is `mongoose.connection`. Otherwise, `mongoose.createConnection` return value is a `Connection`.
+
+**Note:** *If the local connection fails then try using 127.0.0.1 instead of localhost. Sometimes issues may arise when the local hostname has been changed.*
+
+**Important!** Mongoose buffers all the commands until it's connected to the database. This means that you don't have to wait until it connects to MongoDB in order to define models, run queries, etc.
+
+### Defining a Model
+
+Models are defined through the `Schema` interface.
+
+```js
+const Schema = mongoose.Schema;
+const ObjectId = Schema.ObjectId;
+
+const BlogPost = new Schema({
+  author: ObjectId,
+  title: String,
+  body: String,
+  date: Date
+});
+```
+
+Aside from defining the structure of your documents and the types of data you're storing, a Schema handles the definition of:
+
+* [Validators](http://mongoosejs.com/docs/validation.html) (async and sync)
+* [Defaults](http://mongoosejs.com/docs/api/schematype.html#schematype_SchemaType-default)
+* [Getters](http://mongoosejs.com/docs/api/schematype.html#schematype_SchemaType-get)
+* [Setters](http://mongoosejs.com/docs/api/schematype.html#schematype_SchemaType-set)
+* [Indexes](http://mongoosejs.com/docs/guide.html#indexes)
+* [Middleware](http://mongoosejs.com/docs/middleware.html)
+* [Methods](http://mongoosejs.com/docs/guide.html#methods) definition
+* [Statics](http://mongoosejs.com/docs/guide.html#statics) definition
+* [Plugins](http://mongoosejs.com/docs/plugins.html)
+* [pseudo-JOINs](http://mongoosejs.com/docs/populate.html)
+
+The following example shows some of these features:
+
+```js
+const Comment = new Schema({
+  name: { type: String, default: 'hahaha' },
+  age: { type: Number, min: 18, index: true },
+  bio: { type: String, match: /[a-z]/ },
+  date: { type: Date, default: Date.now },
+  buff: Buffer
+});
+
+// a setter
+Comment.path('name').set(function(v) {
+  return capitalize(v);
+});
+
+// middleware
+Comment.pre('save', function(next) {
+  notify(this.get('email'));
+  next();
+});
+```
+
+Take a look at the example in [`examples/schema/schema.js`](https://github.com/Automattic/mongoose/blob/master/examples/schema/schema.js) for an end-to-end example of a typical setup.
+
+### Accessing a Model
+
+Once we define a model through `mongoose.model('ModelName', mySchema)`, we can access it through the same function
+
+```js
+const MyModel = mongoose.model('ModelName');
+```
+
+Or just do it all at once
+
+```js
+const MyModel = mongoose.model('ModelName', mySchema);
+```
+
+The first argument is the *singular* name of the collection your model is for. **Mongoose automatically looks for the *plural* version of your model name.** For example, if you use
+
+```js
+const MyModel = mongoose.model('Ticket', mySchema);
+```
+
+Then `MyModel` will use the **tickets** collection, not the **ticket** collection. For more details read the [model docs](https://mongoosejs.com/docs/api/mongoose.html#mongoose_Mongoose-model).
+
+Once we have our model, we can then instantiate it, and save it:
+
+```js
+const instance = new MyModel();
+instance.my.key = 'hello';
+await instance.save();
+```
+
+Or we can find documents from the same collection
+
+```js
+await MyModel.find({});
+```
+
+You can also `findOne`, `findById`, `update`, etc.
+
+```js
+const instance = await MyModel.findOne({ /* ... */ });
+console.log(instance.my.key); // 'hello'
+```
+
+For more details check out [the docs](http://mongoosejs.com/docs/queries.html).
+
+**Important!** If you opened a separate connection using `mongoose.createConnection()` but attempt to access the model through `mongoose.model('ModelName')` it will not work as expected since it is not hooked up to an active db connection. In this case access your model through the connection you created:
+
+```js
+const conn = mongoose.createConnection('your connection string');
+const MyModel = conn.model('ModelName', schema);
+const m = new MyModel();
+await m.save(); // works
+```
+
+vs
+
+```js
+const conn = mongoose.createConnection('your connection string');
+const MyModel = mongoose.model('ModelName', schema);
+const m = new MyModel();
+await m.save(); // does not work b/c the default connection object was never connected
+```
+
+### Embedded Documents
+
+In the first example snippet, we defined a key in the Schema that looks like:
+
+```txt
+comments: [Comment]
+```
+
+Where `Comment` is a `Schema` we created. This means that creating embedded documents is as simple as:
+
+```js
+// retrieve my model
+const BlogPost = mongoose.model('BlogPost');
+
+// create a blog post
+const post = new BlogPost();
+
+// create a comment
+post.comments.push({ title: 'My comment' });
+
+await post.save();
+```
+
+The same goes for removing them:
+
+```js
+const post = await BlogPost.findById(myId);
+post.comments[0].deleteOne();
+await post.save();
+```
+
+Embedded documents enjoy all the same features as your models. Defaults, validators, middleware.
+
+### Middleware
+
+See the [docs](http://mongoosejs.com/docs/middleware.html) page.
+
+#### Intercepting and mutating method arguments
+
+You can intercept method arguments via middleware.
+
+For example, this would allow you to broadcast changes about your Documents every time someone `set`s a path in your Document to a new value:
+
+```js
+schema.pre('set', function(next, path, val, typel) {
+  // `this` is the current Document
+  this.emit('set', path, val);
+
+  // Pass control to the next pre
+  next();
+});
+```
+
+Moreover, you can mutate the incoming `method` arguments so that subsequent middleware see different values for those arguments. To do so, just pass the new values to `next`:
+
+```js
+schema.pre(method, function firstPre(next, methodArg1, methodArg2) {
+  // Mutate methodArg1
+  next('altered-' + methodArg1.toString(), methodArg2);
+});
+
+// pre declaration is chainable
+schema.pre(method, function secondPre(next, methodArg1, methodArg2) {
+  console.log(methodArg1);
+  // => 'altered-originalValOfMethodArg1'
+
+  console.log(methodArg2);
+  // => 'originalValOfMethodArg2'
+
+  // Passing no arguments to `next` automatically passes along the current argument values
+  // i.e., the following `next()` is equivalent to `next(methodArg1, methodArg2)`
+  // and also equivalent to, with the example method arg
+  // values, `next('altered-originalValOfMethodArg1', 'originalValOfMethodArg2')`
+  next();
+});
+```
+
+#### Schema gotcha
+
+`type`, when used in a schema has special meaning within Mongoose. If your schema requires using `type` as a nested property you must use object notation:
+
+```js
+new Schema({
+  broken: { type: Boolean },
+  asset: {
+    name: String,
+    type: String // uh oh, it broke. asset will be interpreted as String
+  }
+});
+
+new Schema({
+  works: { type: Boolean },
+  asset: {
+    name: String,
+    type: { type: String } // works. asset is an object with a type property
+  }
+});
+```
+
+### Driver Access
+
+Mongoose is built on top of the [official MongoDB Node.js driver](https://github.com/mongodb/node-mongodb-native). Each mongoose model keeps a reference to a [native MongoDB driver collection](http://mongodb.github.io/node-mongodb-native/2.1/api/Collection.html). The collection object can be accessed using `YourModel.collection`. However, using the collection object directly bypasses all mongoose features, including hooks, validation, etc. The one
+notable exception that `YourModel.collection` still buffers
+commands. As such, `YourModel.collection.find()` will **not**
+return a cursor.
+
+## API Docs
+
+Find the API docs [here](http://mongoosejs.com/docs/api/mongoose.html), generated using [dox](https://github.com/tj/dox)
+and [acquit](https://github.com/vkarpov15/acquit).
+
+## Related Projects
+
+### MongoDB Runners
+
+* [run-rs](https://www.npmjs.com/package/run-rs)
+* [mongodb-memory-server](https://www.npmjs.com/package/mongodb-memory-server)
+* [mongodb-topology-manager](https://www.npmjs.com/package/mongodb-topology-manager)
+
+### Unofficial CLIs
+
+* [mongoosejs-cli](https://www.npmjs.com/package/mongoosejs-cli)
+
+### Data Seeding
+
+* [dookie](https://www.npmjs.com/package/dookie)
+* [seedgoose](https://www.npmjs.com/package/seedgoose)
+* [mongoose-data-seed](https://www.npmjs.com/package/mongoose-data-seed)
+
+### Express Session Stores
+
+* [connect-mongodb-session](https://www.npmjs.com/package/connect-mongodb-session)
+* [connect-mongo](https://www.npmjs.com/package/connect-mongo)
+
+## License
+
+Copyright (c) 2010 LearnBoost &lt;dev@learnboost.com&gt;
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/mongoose/SECURITY.md b/backend/node_modules/mongoose/SECURITY.md
new file mode 100644
index 0000000..41b89d8
--- /dev/null
+++ b/backend/node_modules/mongoose/SECURITY.md
@@ -0,0 +1 @@
+Please follow the instructions on [Tidelift's security page](https://tidelift.com/docs/security) to report a security issue.
diff --git a/backend/node_modules/mongoose/browser.js b/backend/node_modules/mongoose/browser.js
new file mode 100644
index 0000000..4cf8228
--- /dev/null
+++ b/backend/node_modules/mongoose/browser.js
@@ -0,0 +1,8 @@
+/**
+ * Export lib/mongoose
+ *
+ */
+
+'use strict';
+
+module.exports = require('./lib/browser');
diff --git a/backend/node_modules/mongoose/dist/browser.umd.js b/backend/node_modules/mongoose/dist/browser.umd.js
new file mode 100644
index 0000000..2d17569
--- /dev/null
+++ b/backend/node_modules/mongoose/dist/browser.umd.js
@@ -0,0 +1,2 @@
+/*! For license information please see browser.umd.js.LICENSE.txt */
+!function(t,e){"object"==typeof exports&&"object"==typeof module?module.exports=e():"function"==typeof define&&define.amd?define([],e):"object"==typeof exports?exports.mongoose=e():t.mongoose=e()}("undefined"!=typeof self?self:this,(()=>(()=>{var t={4986:(t,e,r)=>{"use strict";t.exports=r(254)},254:(t,e,r)=>{"use strict";var n=r(5832).Buffer;function i(t){return i="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},i(t)}function o(){try{var t=!Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],(function(){})))}catch(t){}return(o=function(){return!!t})()}function a(t){return a=Object.setPrototypeOf?Object.getPrototypeOf.bind():function(t){return t.__proto__||Object.getPrototypeOf(t)},a(t)}function s(t,e){return s=Object.setPrototypeOf?Object.setPrototypeOf.bind():function(t,e){return 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null==this.$__.locals&&(this.$__.locals={}),this.$__.locals},set:function(t){this.$__.locals=t}}),_t.prototype.isNew,Object.defineProperty(_t.prototype,"$where",{configurable:!1,enumerable:!1,writable:!0}),_t.prototype.id,_t.prototype.$errors,Object.defineProperty(_t.prototype,"$op",{get:function(){return this.$__.op||null},set:function(t){this.$__.op=t}}),_t.prototype.$__buildDoc=function(t,e,r,n,i){for(var o={},a=Object.keys(this.$__schema.paths).filter((function(t){return!t.includes("$*")})),s=a.length,c=0;c<s;++c){var u=a[c];if("_id"===u){if(r)continue;if(t&&"_id"in t)continue}for(var f=this.$__schema.paths[u].splitPath(),l=f.length,h=l-1,p="",d=o,y=!1,b=0;b<l;++b){var m=f[b];if(p.length?p+="."+m:p=m,!0===n){if(p in e)break}else if(!1===n&&e&&!y)if(p in e)y=!0;else if(!i[p])break;b<h&&(d=d[m]||(d[m]={}))}}this._doc=o},_t.prototype.toBSON=function(){return this.toObject(Y)},_t.prototype.init=function(t,e,r){return"function"==typeof e&&(r=e,e=null),this.$__init(t,e),r&&r(null,this),this},_t.prototype.$init=function(){return this.constructor.prototype.init.apply(this,arguments)},_t.prototype.$__init=function(t,e){if(this.$isNew=!1,e=e||{},null!=t._id&&e.populated&&e.populated.length){var r,n=String(t._id),i=l(e.populated);try{for(i.s();!(r=i.n()).done;){var o=r.value;if(o.isVirtual?this.$populated(o.path,rt.getValue(o.path,t),o):this.$populated(o.path,o._docs[n],o),null!=o._childDocs){var a,s=l(o._childDocs);try{for(s.s();!(a=s.n()).done;){var c=a.value;null!=c&&null!=c.$__&&(c.$__.parent=this)}}catch(t){s.e(t)}finally{s.f()}o._childDocs=[]}}}catch(t){i.e(t)}finally{i.f()}}Ot(this,t,this._doc,e),Q(this,e.populated),this.$emit("init",this),this.constructor.emit("init",this);var u=!1===this.$__.exclude&&this.$__.selected?T(this.$__.selected):null;return I(this,this.$__.selected,this.$__.exclude,u,!1,this.$__.skipDefaults),this},_t.prototype.updateOne=function(t,e,r){var n=this.constructor.updateOne({_id:this._doc._id},t,e),i=this;return n.pre((function(t){i.constructor._middleware.execPre("updateOne",i,[i],t)})),n.post((function(t){i.constructor._middleware.execPost("updateOne",i,[i],{},t)})),null!=this.$session()&&("session"in n.options||(n.options.session=this.$session())),null!=r?n.exec(r):n},_t.prototype.replaceOne=function(){var t=Array.prototype.slice.call(arguments);return t.unshift({_id:this._doc._id}),this.constructor.replaceOne.apply(this.constructor,t)},_t.prototype.$session=function(t){if(0===arguments.length)return null!=this.$__.session&&this.$__.session.hasEnded?(this.$__.session=null,null):this.$__.session;if(null!=t&&t.hasEnded)throw new S("Cannot set a document's session to a session that has ended. Make sure you haven't called `endSession()` on the session you are passing to `$session()`.");if(null!=t||null!=this.$__.session){if(this.$__.session=t,!this.$isSubdocument){var e,r=l(this.$getAllSubdocs());try{for(r.s();!(e=r.n()).done;)e.value.$session(t)}catch(t){r.e(t)}finally{r.f()}}return t}},_t.prototype.$timestamps=function(t){return 0===arguments.length?null!=this.$__.timestamps?this.$__.timestamps:this.$__schema?this.$__schema.options.timestamps:void 0:(t!==this.$timestamps()&&(this.$__.timestamps=t),this)},_t.prototype.overwrite=function(t){for(var e=0,r=Array.from(new Set(Object.keys(this._doc).concat(Object.keys(t))));e<r.length;e++){var n=r[e];"_id"!==n&&(this.$__schema.options.versionKey&&n===this.$__schema.options.versionKey||this.$__schema.options.discriminatorKey&&n===this.$__schema.options.discriminatorKey||this.$set(n,t[n]))}return this},_t.prototype.$set=function(t,e,r,n){var i=this;rt.isPOJO(r)&&(n=r,r=void 0);var o,a,s,c,h=n&&n.merge,p=r&&!0!==r,y=!0===r,b=0,m=n&&"strict"in n,v=m?n.strict:this.$__.strictMode;if(p&&((this.$__.adhocPaths||(this.$__.adhocPaths={}))[t]=this.$__schema.interpretAsType(t,r,this.$__schema.options)),null==t){var g=[e,t];t=g[0],e=g[1]}else if("string"!=typeof t){if(t instanceof _t&&(t=t.$__isNested?t.toObject():t.$__schema===this.$__schema?At(t,u({},t._doc)):t._doc),null==t){var _=[e,t];t=_[0],e=_[1]}c=e?e+".":"";var w=(o=q(this.$__schema,t)).length,j=n&&n._skipMinimizeTopLevel||!1;if(0===w&&j)return delete n._skipMinimizeTopLevel,e&&this.$set(e,{}),this;n=Object.assign({},n,{_skipMinimizeTopLevel:!1});for(var E=0;E<w;++E){s=o[E];var A=c?c+s:s;a=this.$__schema.pathType(A);var P=t[s];if(!0!==r||c||null==P||"nested"!==a||null==this._doc[s]||delete this._doc[s],rt.isNonBuiltinObject(P)&&"nested"===a)this.$set(A,P,y,Object.assign({},n,{_skipMarkModified:!0})),St(this.$get(A),A,this);else if(v){if(y&&void 0===P&&void 0!==this.$get(A))continue;if("adhocOrUndefined"===a&&(a=U(this,A,{typeOnly:!0})),"real"===a||"virtual"===a)this.$set(A,P,y,n);else if("nested"===a&&P instanceof _t)this.$set(A,P.toObject({transform:!1}),y,n);else{if("throw"===v)throw"nested"===a?new $(s,P):new x(s);"nested"===a&&null==P&&this.$set(A,P,y,n)}}else this.$set(A,P,y,n)}for(var k={},M=Object.keys(this.$__schema.tree),T=0,I=M.length;T<I;++T)(s=M[T])&&this._doc.hasOwnProperty(s)&&(k[s]=void 0);return this._doc=Object.assign(k,this._doc),this}var R=this.$__schema.pathType(t),N=null;if("adhocOrUndefined"===R&&(N=-1===t.indexOf(".")?[t]:t.split("."),R=U(this,N,{typeOnly:!0})),"adhocOrUndefined"===R&&!m){null==N&&(N=-1===t.indexOf(".")?[t]:t.split("."));var D=F(this.$__schema,N);void 0!==D&&(v=D)}e=V(e,!0);var L,C=null!=i.$__.priorDoc?i.$__.priorDoc.$__getValue(t):y?void 0:i.$__getValue(t);if("nested"===R&&e){if("object"===d(e)&&null!=e){if(null!=e.$__&&(e=e.toObject(Y)),null==e)return this.invalidate(t,new S.CastError("Object",e,t)),this;var z=this.$isModified(t),K=null!=this.$__.savedState&&this.$__.savedState.hasOwnProperty(t);if(null!=this.$__.savedState&&!this.$isNew&&!this.$__.savedState.hasOwnProperty(t)){var H=this.$__getValue(t);this.$__.savedState[t]=H;for(var W=0,J=Object.keys(H||{});W<J.length;W++){var G=J[W];this.$__.savedState[t+"."+G]=H[G]}}if(h)return this.$set(e,t,y,n);this.$__setValue(t,null),B(this,t);var Q=q(this.$__schema,e,t);this.$__setValue(t,{});var X,tt=l(Q);try{for(tt.s();!(X=tt.n()).done;){var et=X.value;this.$set(t+"."+et,e[et],y,u(u({},n),{},{_skipMarkModified:!0}))}}catch(t){tt.e(t)}finally{tt.f()}return null==C||z&&!K||!rt.deepEqual(K?this.$__.savedState[t]:C,e)?this.markModified(t):this.unmarkModified(t),this}return this.invalidate(t,new S.CastError("Object",e,t)),this}if(null==N&&(N=-1===t.indexOf(".")?[t]:t.split(".")),"string"==typeof this.$__schema.aliases[N[0]]&&(N[0]=this.$__schema.aliases[N[0]]),"adhocOrUndefined"===R&&v){var nt;for(b=0;b<N.length;++b){var it=N.slice(0,b+1).join(".");if(b+1<N.length&&"virtual"===this.$__schema.pathType(it))return Z.set(t,e,this),this;if(null!=(L=this.$__schema.path(it))){if(L instanceof O){nt=!0;break}if(L.$isSchemaMap&&L.$__schemaType instanceof O&&b<N.length-1){nt=!0,L=L.$__schemaType;break}}}if(null==L&&(L=U(this,t)),!nt&&!L){if("throw"===v)throw new x(t);return this}}else{if("virtual"===R)return(L=this.$__schema.virtualpath(t)).applySetters(e,this),this;L=this.$__path(t)}var ot,at=this._doc,st="";for(b=0;b<N.length-1;++b)at=at[N[b]],st+=(0!==st.length?".":"")+N[b],at||(this.$set(st,{}),this.$__isSelected(st)||this.unmarkModified(st),at=this.$__getValue(st));if(N.length<=1)ot=t;else{var ct=N.length;for(b=0;b<ct;++b){var ut=N.slice(0,b+1).join(".");if(null===this.$get(ut,null,{getters:!1})){ot=ut;break}}ot||(ot=t)}if(!L)return this.$__set(ot,t,n,y,N,L,e,C),"nested"===R&&null==e&&B(this,t),this;if((L.$isSingleNested||L.$isMongooseArray)&&function(t,e){if(t.$__.validationError){for(var r=0,n=Object.keys(t.$__.validationError.errors);r<n.length;r++){var i=n[r];i.startsWith(e+".")&&delete t.$__.validationError.errors[i]}0===Object.keys(t.$__.validationError.errors).length&&(t.$__.validationError=null)}}(this,t),null!=e&&h&&L.$isSingleNested){e instanceof _t&&(e=e.toObject({virtuals:!1,transform:!1}));for(var ft=0,lt=Object.keys(e);ft<lt.length;ft++){var ht=lt[ft];this.$set(t+"."+ht,e[ht],y,n)}return this}var yt=!0;try{var bt,gt=function(){if(null==L.options)return!1;if(!(e instanceof _t))return!1;var t=e.constructor,r="function"!=typeof L.options.ref||L.options.ref[pt]?L.options.ref:L.options.ref.call(i,i),n=(null==r?void 0:r.modelName)||r;if(null!=n&&(n===t.modelName||n===t.baseModelName))return!0;var o=L.options.refPath;if(null==o)return!1;var a=e.get(o);return a===t.modelName||a===t.baseModelName}(),wt=!1;if(gt&&e instanceof _t&&(!e.$__.wasPopulated||rt.deepEqual(e.$__.wasPopulated.value,e._doc._id))){var Ot=L&&L.$isSingleNested?L.cast(e,this):e._doc._id;this.$populated(t,Ot,f({},dt,e.constructor)),e.$__.wasPopulated={value:Ot},wt=!0}var jt=this.$__schema.options.typeKey;if(L.options&&Array.isArray(L.options[jt])&&L.options[jt].length&&L.options[jt][0]&&L.options[jt][0].ref&&function(t,e){if(!Array.isArray(t))return!1;if(0===t.length)return!1;var r,n=l(t);try{for(n.s();!(r=n.n()).done;){var i=r.value;if(!(i instanceof _t))return!1;if(null==i.constructor.modelName)return!1;if(i.constructor.modelName!=e&&i.constructor.baseModelName!=e)return!1}}catch(t){n.e(t)}finally{n.f()}return!0}(e,L.options[jt][0].ref)){bt=f({},dt,e[0].constructor),this.$populated(t,e.map((function(t){return t._doc._id})),bt);var $t,Et=l(e);try{for(Et.s();!($t=Et.n()).done;){var Pt=$t.value;Pt.$__.wasPopulated={value:Pt._doc._id}}}catch(t){Et.e(t)}finally{Et.f()}wt=!0}if(!gt||!L.$isSingleNested||!e.$__){var xt=this;null!=this.$__schema.singleNestedPaths[t]&&N.length>1&&(xt=mt(this,N,this.schema)),e=null!=n&&n.overwriteImmutable?L.applySetters(e,xt,!1,C,{overwriteImmutable:!0}):L.applySetters(e,xt,!1,C)}if(Array.isArray(e)&&!Array.isArray(L)&&L.$isMongooseDocumentArray&&0!==e.length&&null!=e[0]&&null!=e[0].$__&&null!=e[0].$__.populated){for(var kt=Object.keys(e[0].$__.populated),Mt=function(){var r=It[Tt];i.$populated(t+"."+r,e.map((function(t){return t.$populated(r)})),e[0].$__.populated[r].options)},Tt=0,It=kt;Tt<It.length;Tt++)Mt();wt=!0}if(!wt&&this.$__.populated){if(Array.isArray(e)&&this.$__.populated[t])for(var Bt=0;Bt<e.length;++Bt)e[Bt]instanceof _t&&e.set(Bt,e[Bt]._doc._id,!0);delete this.$__.populated[t]}null!=e&&L.$isSingleNested&&function(t,e,r){var n=e.schema;if(null!=n)for(var i=0,o=Object.keys(n.paths);i<o.length;i++){var a=o[i],s=n.paths[a];if(null!=s.$immutableSetter){var c=null==r?void 0:r.$__getValue(a);s.$immutableSetter.call(t,c)}}}(e,L,C),this.$markValid(t)}catch(r){r instanceof S.StrictModeError&&r.isImmutableError?this.invalidate(t,r):r instanceof S.CastError?(this.invalidate(r.path,r),r.$originalErrorPath&&this.invalidate(t,new S.CastError(L.instance,e,t,r.$originalErrorPath))):this.invalidate(t,new S.CastError(L.instance,e,t,r)),yt=!1}if(yt){var Rt,Nt=null,Dt=null;if(!y){var Lt=this.$isSubdocument?this.ownerDocument():this;Nt=Lt.$__.savedState,Dt=this.$isSubdocument?this.$__.fullPath+"."+t:t,Lt.$__saveInitialState(Dt)}this.$__set(ot,t,n,y,N,L,e,C);var Ct=!(null===(Rt=this.$__.session)||void 0===Rt||!Rt.transaction),Ut=this.$__.session&&this.$__.session[vt]&&this.$__.session[vt].has(this)&&this.$__.session[vt].get(this).modifiedPaths&&!this.$__.session[vt].get(this).modifiedPaths.has(Dt);null!=Nt&&Nt.hasOwnProperty(Dt)&&(!Ct||Ut)&&rt.deepEqual(e,Nt[Dt])&&this.unmarkModified(t)}return L.$isSingleNested&&(this.isDirectModified(t)||null==e)&&B(this,t),this},_t.prototype.set=_t.prototype.$set,_t.prototype.$__shouldModify=function(t,e,r,n,i,o,a,s){return!(r&&r._skipMarkModified||!this.$isNew&&!(e in this.$__.activePaths.getStatePaths("modify"))&&(void 0!==a||this.$__isSelected(e))&&(void 0===a&&e in this.$__.activePaths.getStatePaths("default")||this.$populated(e)&&a instanceof _t&&it(a._doc._id,s)||it(a,void 0!==s?s:rt.getValue(e,this))&&(n||null==a||!(e in this.$__.activePaths.getStatePaths("default"))||!it(a,o.getDefault(this,n)))))},_t.prototype.$__set=function(t,e,n,i,o,a,s,c){m=m||r(8578);var u=this.$__shouldModify(t,e,n,i,o,a,s,c);u?(this.$__.primitiveAtomics&&this.$__.primitiveAtomics[e]&&(delete this.$__.primitiveAtomics[e],0===Object.keys(this.$__.primitiveAtomics).length&&delete this.$__.primitiveAtomics),this.markModified(t),b||(b=r(2918)),s&&rt.isMongooseArray(s)&&(s._registerAtomic("$set",s),rt.isMongooseDocumentArray(s)&&s.forEach((function(t){t&&t.__parentArray&&(t.__parentArray=s)})))):Array.isArray(s)&&Array.isArray(c)&&rt.isMongooseArray(s)&&rt.isMongooseArray(c)&&(s[st]=c[st],s[at]=c[at],rt.isMongooseDocumentArray(s)&&s.forEach((function(t){null!=t&&(t.$isNew=!1)})));for(var f=this._doc,l=0,h=o.length,p="";l<h;l++){var d=l+1===h;if(p+=p?"."+o[l]:o[l],gt.has(o[l]))return;if(d)f instanceof Map?f.set(o[l],s):f.$isSingleNested?(o[l]in f||(f[o[l]]=s),f._doc[o[l]]=s,u&&f.markModified(o[l])):f[o[l]]=s;else{var y=f instanceof Map,v=y?f.get(o[l]):f[o[l]];rt.isPOJO(v)||v&&v instanceof m||v&&!Array.isArray(v)&&v.$isSingleNested||v&&Array.isArray(v)?f=v:null==v?(v={},y?f.set(o[l],v):f[o[l]]=v,f=v):f=v}}},_t.prototype.$__getValue=function(t){if("string"!=typeof t&&!Array.isArray(t))throw new TypeError('Invalid `path`. Must be either string or array. Got "'.concat(t,'" (type ').concat(d(t),")"));return rt.getValue(t,this._doc)},_t.prototype.$inc=function(t,e){var r=this;if(null==e&&(e=1),Array.isArray(t))return t.forEach((function(t){return r.$inc(t,e)})),this;var n=this.$__path(t);if(null==n){if("throw"===this.$__.strictMode)throw new x(t);if(!0===this.$__.strictMode)return this}else if("Number"!==n.instance)return this.invalidate(t,new S.CastError(n.instance,e,t)),this;var i=this.$__getValue(t)||0,o=!1,a=null,s=e;try{e=n.cast(e),s=(a=n.applySetters(i+e,this))-i,o=!0}catch(r){this.invalidate(t,new S.CastError("number",e,t,r))}return o&&(this.$__.primitiveAtomics=this.$__.primitiveAtomics||{},null==this.$__.primitiveAtomics[t]?this.$__.primitiveAtomics[t]={$inc:s}:this.$__.primitiveAtomics[t].$inc+=s,this.markModified(t),this.$__setValue(t,a)),this},_t.prototype.$__setValue=function(t,e){return rt.setValue(t,e,this._doc),this},_t.prototype.get=function(t,e,r){var n;null==r&&(r={}),e&&(n=this.$__schema.interpretAsType(t,e,this.$__schema.options));var i=r.noDottedPath,o=i?this.$__schema.paths[t]:this.$__path(t);if(null==o&&null!=(o=this.$__schema.virtualpath(t)))return o.applyGetters(void 0,this);if(i){var a=this._doc[t];return n&&(a=n.cast(a)),null!=o&&!1!==r.getters?o.applyGetters(a,this):a}if(null!=o&&"Mixed"===o.instance){var s=this.$__schema.virtualpath(t);null!=s&&(o=s)}var c=-1!==t.indexOf("."),u=this._doc,f=c?t.split("."):[t];"string"==typeof this.$__schema.aliases[f[0]]&&(f[0]=this.$__schema.aliases[f[0]]);for(var l=0,h=f.length;l<h;l++)u&&u._doc&&(u=u._doc),u=null==u?void 0:u instanceof Map?u.get(f[l],{getters:!1}):l===h-1?rt.getValue(f[l],u):u[f[l]];if(n&&(u=n.cast(u)),null!=o&&!1!==r.getters)u=o.applyGetters(u,this);else if(this.$__schema.nested[t]&&r.virtuals)return At(this,R(u)||{},{path:t});return u},_t.prototype[ht]=_t.prototype.get,_t.prototype.$get=_t.prototype.get,_t.prototype.$__path=function(t){var e=this.$__.adhocPaths;return(e&&e.hasOwnProperty(t)?e[t]:null)||this.$__schema.path(t)},_t.prototype.markModified=function(t,e){this.$__saveInitialState(t),this.$__.activePaths.modify(t),null==e||this.$isSubdocument||(this.$__.pathsToScopes=this.$__pathsToScopes||{},this.$__.pathsToScopes[t]=e)},_t.prototype.$__saveInitialState=function(t){var e=this.$__.savedState,r=t;if(null!=e){var n=r.indexOf("."),i=-1===n?r:r.slice(0,n);e.hasOwnProperty(i)||(e[i]=R(this.$__getValue(i)))}},_t.prototype.unmarkModified=function(t){this.$__.activePaths.init(t),null!=this.$__.pathsToScopes&&delete this.$__.pathsToScopes[t]},_t.prototype.$ignore=function(t){this.$__.activePaths.ignore(t)},_t.prototype.directModifiedPaths=function(){return Object.keys(this.$__.activePaths.getStatePaths("modify"))},_t.prototype.$isEmpty=function(t){var e={minimize:!0,virtuals:!1,getters:!1,transform:!1};if(0!==arguments.length){var r=this.$get(t);return null==r||"object"===d(r)&&(rt.isPOJO(r)?jt(r):0===Object.keys(r.toObject(e)).length)}return 0===Object.keys(this.toObject(e)).length},_t.prototype.modifiedPaths=function(t){t=t||{};var e=Object.keys(this.$__.activePaths.getStatePaths("modify")),r=new Set,n=0,i=0,o=e.length;for(n=0;n<o;++n){var a=e[n],s=tt(a),c=s.length;for(i=0;i<c;++i)r.add(s[i]);if(t.includeChildren){var u=0,f=this.$get(a);if("object"===d(f)&&null!==f){f._doc&&(f=f._doc);var l=f.length;if(Array.isArray(f))for(u=0;u<l;++u){var h=a+"."+u;if(!r.has(h)&&(r.add(h),null!=f[u]&&f[u].$__)){var p=f[u].modifiedPaths(),y=0,b=p.length;for(y=0;y<b;++y)r.add(h+"."+p[y])}}else{var m=Object.keys(f),v=0,g=m.length;for(v=0;v<g;++v)r.add(a+"."+m[v])}}}}return Array.from(r)},_t.prototype[ft]=_t.prototype.modifiedPaths,_t.prototype.isModified=function(t,e,r){var n=this;if(t){var i=e&&e.ignoreAtomics,o=this.$__.activePaths.states.modify;if(null==o)return!1;"string"==typeof t&&(t=-1===t.indexOf(" ")?[t]:t.split(" "));var a,s=l(t);try{for(s.s();!(a=s.n()).done;)if(null!=o[a.value])return!0}catch(t){s.e(t)}finally{s.f()}var c=r||this[ft](),u=t.some((function(t){return!!~c.indexOf(t)})),f=Object.keys(o);return i&&(f=f.filter((function(t){var e=n.$__getValue(t);return null==e||null==e[st]||void 0!==e[st].$set}))),u||t.some((function(t){return f.some((function(e){return e===t||t.startsWith(e+".")}))}))}return this.$__.activePaths.some("modify")},_t.prototype.$isModified=_t.prototype.isModified,_t.prototype[ut]=_t.prototype.isModified,_t.prototype.$isDefault=function(t){var e=this;if(null==t)return this.$__.activePaths.some("default");if("string"==typeof t&&-1===t.indexOf(" "))return this.$__.activePaths.getStatePaths("default").hasOwnProperty(t);var r=t;return Array.isArray(r)||(r=r.split(" ")),r.some((function(t){return e.$__.activePaths.getStatePaths("default").hasOwnProperty(t)}))},_t.prototype.$isDeleted=function(t){return 0===arguments.length?!!this.$__.isDeleted:(this.$__.isDeleted=!!t,this)},_t.prototype.isDirectModified=function(t){var e=this;if(null==t)return this.$__.activePaths.some("modify");if("string"==typeof t&&-1===t.indexOf(" ")){var r=this.$__.activePaths.getStatePaths("modify").hasOwnProperty(t);if(r||-1===t.indexOf("."))return r;for(var n=t.split("."),i=0;i<n.length-1;++i){var o=n.slice(0,i+1).join("."),a=this.$get(o);if(null!=a&&null!=a.$__&&a.isDirectModified(n.slice(i+1).join(".")))return!0}return!1}var s=t;return"string"==typeof s&&(s=s.split(" ")),s.some((function(t){return e.isDirectModified(t)}))},_t.prototype.isInit=function(t){var e=this;if(null==t)return this.$__.activePaths.some("init");if("string"==typeof t&&-1===t.indexOf(" "))return this.$__.activePaths.getStatePaths("init").hasOwnProperty(t);var r=t;return Array.isArray(r)||(r=r.split(" ")),r.some((function(t){return e.$__.activePaths.getStatePaths("init").hasOwnProperty(t)}))},_t.prototype.isSelected=function(t){var e=this;if(null==this.$__.selected)return!0;if(!t)return!1;if("_id"===t)return 0!==this.$__.selected._id;if(-1!==t.indexOf(" ")&&(t=t.split(" ")),Array.isArray(t))return t.some((function(t){return e.$__isSelected(t)}));var r=Object.keys(this.$__.selected),n=null;if(1===r.length&&"_id"===r[0])return 0===this.$__.selected._id;for(var i=0,o=r;i<o.length;i++){var a=o[i];if("_id"!==a&&H(this.$__.selected[a])){n=!!this.$__.selected[a];break}}if(null===n)return!0;if(t in this.$__.selected)return n;for(var s=t+".",c=0,u=r;c<u.length;c++){var f=u[c];if("_id"!==f){if(f.startsWith(s))return n||f!==s;if(s.startsWith(f+"."))return n}}return!n},_t.prototype.$__isSelected=_t.prototype.isSelected,_t.prototype.isDirectSelected=function(t){var e=this;if(null==this.$__.selected)return!0;if("_id"===t)return 0!==this.$__.selected._id;if(-1!==t.indexOf(" ")&&(t=t.split(" ")),Array.isArray(t))return t.some((function(t){return e.isDirectSelected(t)}));var r=Object.keys(this.$__.selected),n=null;if(1===r.length&&"_id"===r[0])return 0===this.$__.selected._id;for(var i=0,o=r;i<o.length;i++){var a=o[i];if("_id"!==a&&H(this.$__.selected[a])){n=!!this.$__.selected[a];break}}return null===n||(this.$__.selected.hasOwnProperty(t)?n:!n)},_t.prototype.validate=function(){var t=s(o().mark((function t(e,r){var n,i,a,s=this,c=arguments;return o().wrap((function(t){for(;;)switch(t.prev=t.next){case 0:if("function"!=typeof e&&"function"!=typeof r&&"function"!=typeof c[2]){t.next=2;break}throw new S("Document.prototype.validate() no longer accepts a callback");case 2:if(this.$op="validate",1===c.length&&("object"!==d(c[0])||Array.isArray(c[0])||(r=c[0],e=null)),r&&"string"==typeof r.pathsToSkip&&(i=-1===r.pathsToSkip.indexOf(" "),r.pathsToSkip=i?[r.pathsToSkip]:r.pathsToSkip.split(" ")),a=r&&r._skipParallelValidateCheck,null!=this.$isSubdocument||(this.$__.validating&&!a?n=new A(this,{parentStack:r&&r.parentStack,conflictStack:this.$__.validating.stack}):a||(this.$__.validating=new A(this,{parentStack:r&&r.parentStack}))),null==n){t.next=9;break}throw n;case 9:return t.abrupt("return",new Promise((function(t,n){s.$__validate(e,r,(function(e){if(s.$op=null,s.$__.validating=null,null!=e)return n(e);t()}))})));case 10:case"end":return t.stop()}}),t,this)})));return function(e,r){return t.apply(this,arguments)}}(),_t.prototype.$validate=_t.prototype.validate,_t.prototype.$__validate=function(t,e,r){var n,o=this;this.$__.saveOptions&&this.$__.saveOptions.pathsToSave&&!t?t=i(this.$__.saveOptions.pathsToSave):"function"==typeof t?(r=t,e=null,t=null):"function"==typeof e&&(r=e,e=null);var a,s=e&&"object"===d(e)&&"validateModifiedOnly"in e,c=e&&e.pathsToSkip||null;a=s?!!e.validateModifiedOnly:this.$__schema.options.validateModifiedOnly;var f=e&&e.validateAllPaths;if(f){if(c)throw new TypeError("Cannot set both `validateAllPaths` and `pathsToSkip`");if(t)throw new TypeError("Cannot set both `validateAllPaths` and `pathsToValidate`");if(s&&a)throw new TypeError("Cannot set both `validateAllPaths` and `validateModifiedOnly`")}var h,p,y=this,b=function(){var t=o.$__.validationError;if(o.$__.validationError=null,o.$__.validating=null,a&&null!=t){for(var e=0,r=Object.keys(t.errors);e<r.length;e++){var n=r[e];o.$isModified(n)||delete t.errors[n]}0===Object.keys(t.errors).length&&(t=void 0)}if(o.$__.cachedRequired={},o.$emit("validate",y),o.constructor.emit("validate",y),t){for(var i in t.errors)!o[ct]&&t.errors[i]instanceof S.CastError&&o.invalidate(i,t.errors[i]);return t}};if(f){var m,v=l(h=new Set(Object.keys(this.$__schema.paths)));try{for(v.s();!(m=v.n()).done;){var g=m.value,_=this.$__schema.path(g);if(_&&_.$isMongooseArray){var w=this.$__getValue(g);w&&Et(w,h,g)}}}catch(t){v.e(t)}finally{v.f()}h=i(h),p={}}else{var O=$t(this,t,c,e&&e._nestedValidate);h=a?O[0].filter((function(t){return o.$isModified(t)})):O[0],p=O[1]}if("string"==typeof t&&(t=t.split(" ")),0===h.length)return z((function(){var t=b();if(t)return y.$__schema.s.hooks.execPost("validate:error",y,[y],{error:t},(function(t){r(t)}));r(null,y)}));var j={},$=0,E=null===(n=this.$__.saveOptions)||void 0===n?void 0:n.pathsToSave;if(Array.isArray(E)){E=new Set(E);var A,P=l(h);try{for(P.s();!(A=P.n()).done;){var x=A.value;E.has(x)&&I(x)}}catch(t){P.e(t)}finally{P.f()}}else{var M,T=l(h);try{for(T.s();!(M=T.n()).done;)I(M.value)}catch(t){T.e(t)}finally{T.f()}}function I(t){null==t||j[t]||(j[t]=!0,$++,z((function(){var e=y.$__schema.path(t);if(!e)return--$||B();if(y.$isValid(t)){if(null!=e[bt]&&t!==e.path)return--$||B();var r,n=y.$__getValue(t);(r=y.$populated(t))?n=r:null!=n&&null!=n.$__&&n.$__.wasPopulated&&(n=n._doc._id);var i=null!=y.$__.pathsToScopes&&t in y.$__.pathsToScopes?y.$__.pathsToScopes[t]:y,o=u(u({},p[t]),{},{path:t,validateAllPaths:f,_nestedValidate:!0});e.doValidate(n,(function(r){if(r){if((e.$isSingleNested||e.$isArraySubdocument||e.$isMongooseDocumentArray)&&r instanceof k)return--$||B();y.invalidate(t,r,void 0,!0)}--$||B()}),i,o)}else--$||B()})))}function B(){var t=b();if(t)return y.$__schema.s.hooks.execPost("validate:error",y,[y],{error:t},(function(t){r(t)}));r(null,y)}},_t.prototype.validateSync=function(t,e){var r,n=this,o=this;1!==arguments.length||"object"!==d(arguments[0])||Array.isArray(arguments[0])||(e=arguments[0],t=null),r=e&&"object"===d(e)&&"validateModifiedOnly"in e?!!e.validateModifiedOnly:this.$__schema.options.validateModifiedOnly;var a,s,c=e&&e.pathsToSkip,u=e&&e.validateAllPaths;if(u){if(c)throw new TypeError("Cannot set both `validateAllPaths` and `pathsToSkip`");if(t)throw new TypeError("Cannot set both `validateAllPaths` and `pathsToValidate`")}if("string"==typeof t){var f=-1===t.indexOf(" ");t=f?[t]:t.split(" ")}else"string"==typeof c&&-1!==c.indexOf(" ")&&(c=c.split(" "));if(u){var h,p=l(a=new Set(Object.keys(this.$__schema.paths)));try{for(p.s();!(h=p.n()).done;){var y=h.value,b=this.$__schema.path(y);if(b&&b.$isMongooseArray){var m=this.$__getValue(y);m&&Et(m,a,y)}}}catch(A){p.e(A)}finally{p.f()}a=i(a),s={}}else{var v=$t(this,t,c);a=r?v[0].filter((function(t){return n.$isModified(t)})):v[0],s=v[1]}for(var g={},_=0,w=a.length;_<w;++_){var O=a[_];if(!g[O]){g[O]=!0;var j=o.$__schema.path(O);if(j&&o.$isValid(O)){var $=o.$__getValue(O),E=j.doValidateSync($,o,{skipSchemaValidators:s[O],path:O,validateModifiedOnly:r,validateAllPaths:u});if(E){if((j.$isSingleNested||j.$isArraySubdocument||j.$isMongooseDocumentArray)&&E instanceof k)continue;o.invalidate(O,E,void 0,!0)}}}}var A=o.$__.validationError;if(o.$__.validationError=void 0,o.$emit("validate",o),o.constructor.emit("validate",o),A)for(var P in A.errors)A.errors[P]instanceof S.CastError&&o.invalidate(P,A.errors[P]);return A},_t.prototype.invalidate=function(t,e,r,n){if(this.$__.validationError||(this.$__.validationError=new k(this)),!this.$__.validationError.errors[t])return e&&"string"!=typeof e||(e=new M({path:t,message:e,type:n||"user defined",value:r})),this.$__.validationError===e||this.$__.validationError.addError(t,e),this.$__.validationError},_t.prototype.$markValid=function(t){this.$__.validationError&&this.$__.validationError.errors[t]&&(delete this.$__.validationError.errors[t],0===Object.keys(this.$__.validationError.errors).length&&(this.$__.validationError=null))},_t.prototype.$isValid=function(t){var e=this;return null==this.$__.validationError||0===Object.keys(this.$__.validationError.errors).length||null!=t&&(-1!==t.indexOf(" ")&&(t=t.split(" ")),Array.isArray(t)?t.some((function(t){return null==e.$__.validationError.errors[t]})):null==this.$__.validationError.errors[t])},_t.prototype.$__reset=function(){var t,e=this.$isSubdocument?null:this.$getAllSubdocs({useCache:!0});if(e&&e.length>0){var r,n=l(e);try{for(n.s();!(r=n.n()).done;)r.value.$__reset()}catch(t){n.e(t)}finally{n.f()}}return this.$__dirty().forEach((function(t){var e=t.value;e&&e[st]&&(e[at]=e[st],e[st]={})})),this.$__.backup={},this.$__.backup.activePaths={modify:Object.assign({},this.$__.activePaths.getStatePaths("modify")),default:Object.assign({},this.$__.activePaths.getStatePaths("default"))},this.$__.backup.validationError=this.$__.validationError,this.$__.backup.errors=this.$errors,this.$__.activePaths.clear("modify"),this.$__.activePaths.clear("default"),this.$__.validationError=void 0,this.$errors=void 0,t=this,this.$__schema.requiredPaths().forEach((function(e){t.$__.activePaths.require(e)})),this},_t.prototype.$__undoReset=function(){if(null!=this.$__.backup&&null!=this.$__.backup.activePaths){this.$__.activePaths.states.modify=this.$__.backup.activePaths.modify,this.$__.activePaths.states.default=this.$__.backup.activePaths.default,this.$__.validationError=this.$__.backup.validationError,this.$errors=this.$__.backup.errors;var t,e=l(this.$__dirty());try{for(e.s();!(t=e.n()).done;){var r=t.value.value;r&&r[st]&&r[at]&&(r[st]=r[at])}}catch(t){e.e(t)}finally{e.f()}var n,i=l(this.$getAllSubdocs());try{for(i.s();!(n=i.n()).done;)n.value.$__undoReset()}catch(t){i.e(t)}finally{i.f()}}},_t.prototype.$__dirty=function(){var t=this,e=this.$__.activePaths.map("modify",(function(e){return{path:e,value:t.$__getValue(e),schema:t.$__path(e)}}));e=e.concat(this.$__.activePaths.map("default",(function(e){if("_id"!==e&&null!=t.$__getValue(e))return{path:e,value:t.$__getValue(e),schema:t.$__path(e)}})));var r=new Map(e.filter((function(t){return null!=t})).map((function(t){return[t.path,t.value]}))),n=[];return e.forEach((function(t){if(t){for(var e=null,i=tt(t.path),o=0;o<i.length-1;o++)if(r.has(i[o])){e=r.get(i[o]);break}null==e?n.push(t):null!=e&&null!=e[st]&&e.hasAtomics()&&(e[st]={},e[st].$set=e)}})),n},_t.prototype.$__setSchema=function(t){N(t.tree,this,void 0,t.options);for(var e=0,r=Object.keys(t.virtuals);e<r.length;e++){var n=r[e];t.virtuals[n]._applyDefaultGetters()}null==t.path("schema")&&(this.schema=t),this.$__schema=t,this[lt]=t},_t.prototype.$__getArrayPathsToValidate=function(){return y||(y=r(4941)),this.$__.activePaths.map("init","modify",function(t){return this.$__getValue(t)}.bind(this)).filter((function(t){return t&&Array.isArray(t)&&rt.isMongooseDocumentArray(t)&&t.length})).reduce((function(t,e){return t.concat(e)}),[]).filter((function(t){return t}))},_t.prototype.$getAllSubdocs=function(t){var e;if(null!=t&&t.useCache&&null!==(e=this.$__.saveOptions)&&void 0!==e&&e.__subdocs)return this.$__.saveOptions.__subdocs;y||(y=r(4941)),m=m||r(8578);var n=[];return function t(e){var r,i=[],o=l(e.$__schema.childSchemas);try{for(o.s();!(r=o.n()).done;){var a=r.value.model,s=e.$__getValue(a.path);if(null!=s){if(s.$__&&i.push(s),Array.isArray(s)){var c,u=l(s);try{for(u.s();!(c=u.n()).done;){var f=c.value;null!=f&&f.$__&&i.push(f)}}catch(t){u.e(t)}finally{u.f()}}if(s instanceof Map){var h,p=l(s.values());try{for(p.s();!(h=p.n()).done;){var d=h.value;null!=d&&d.$__&&i.push(d)}}catch(t){p.e(t)}finally{p.f()}}}}}catch(t){o.e(t)}finally{o.f()}for(var y=0,b=i;y<b.length;y++)t(b[y]);n.push.apply(n,i)}(this),this.$__.saveOptions&&(this.$__.saveOptions.__subdocs=n),n},_t.prototype.$__handleReject=function(t){this.$listeners("error").length?this.$emit("error",t):this.constructor.listeners&&this.constructor.listeners("error").length&&this.constructor.emit("error",t)},_t.prototype.$toObject=function(t,e){var r,n,i,o,a,s,c,f,l,h,p,y=this.$__schema._defaultToObjectOptions(e),b=this.$__hasOnlyPrimitiveValues();(t=rt.isPOJO(t)?u({},t):{})._calledWithOptions=t._calledWithOptions||u({},t),p=null!=t._calledWithOptions.minimize?t.minimize:null!=y&&null!=y.minimize?y.minimize:this.$__schema.options.minimize,t.minimize=p,b||(t._seen=t._seen||new Map);var m=null!==(r=null!==(n=null!==(i=t._calledWithOptions.depopulate)&&void 0!==i?i:null==y?void 0:y.depopulate)&&void 0!==n?n:t.depopulate)&&void 0!==r&&r;if(m&&t._isNested&&this.$__.wasPopulated)return R(this.$__.wasPopulated.value||this._doc._id,t);if(m&&(t.depopulate=!0),null!=y)for(var v=0,g=Object.keys(y);v<g.length;v++){var _=g[v];null==t[_]&&(t[_]=y[_])}t._isNested=!0,t.json=e,t.minimize=p;var w,S=t._parentOptions;t._parentOptions=this.$isSubdocument?t:null,w=b&&!t.flattenObjectIds?this.$__toObjectShallow():R(this._doc,t)||{};var O=null!==(o=null!==(a=null!==(s=t._calledWithOptions.getters)&&void 0!==s?s:t.getters)&&void 0!==a?a:y.getters)&&void 0!==o&&o;O&&(function(t,e){var r,n,i=t.$__schema,o=Object.keys(i.paths),a=o.length,s=t._doc;if(!s)return e;for(;a--;){var c=(r=o[a]).split("."),u=c.length,f=u-1,l=e,h=void 0;if(s=t._doc,t.$__isSelected(r))for(var p=0;p<u&&(n=s[h=c[p]],null==l||"object"===d(l));++p){if(p===f){if(l[h]=i.paths[r].applyGetters(l[h],t),Array.isArray(l[h])&&i.paths[r].$embeddedSchemaType)for(var y=0;y<l[h].length;++y)l[h][y]=i.paths[r].$embeddedSchemaType.applyGetters(l[h][y],t)}else{if(null==n){h in s&&(l[h]=n);break}l=l[h]||(l[h]={})}s=n}}}(this,w),t.minimize&&(w=X(w)||{}));var j=null!==(c=null!==(f=null!==(l=t._calledWithOptions.virtuals)&&void 0!==l?l:y.virtuals)&&void 0!==f?f:null==S?void 0:S.virtuals)&&void 0!==c?c:void 0;(j||O&&!1!==j)&&At(this,w,t,t),!1===t.versionKey&&this.$__schema.options.versionKey&&delete w[this.$__schema.options.versionKey];var $=null===(h=t._calledWithOptions.transform)||void 0===h||h,E=void 0;if(!0===$?E=y.transform:"function"==typeof $&&(E=$),$&&function(t,e){var r=t.$__schema,n=Object.keys(r.paths||{});if(!t._doc)return e;for(var i=0,o=n;i<o.length;i++){var a=o[i],s=r.paths[a];if("function"==typeof s.options.transform){var c=t.$get(a);if(void 0===c)continue;var u=s.options.transform.call(t,c);Pt(a,u),rt.setValue(a,u,e)}else if(null!=s.$embeddedSchemaType&&"function"==typeof s.$embeddedSchemaType.options.transform){var f=t.$get(a);if(void 0===f)continue;for(var l=[].concat(f),h=s.$embeddedSchemaType.options.transform,p=0;p<l.length;++p){var d=h.call(t,l[p]);l[p]=d,Pt(a,d)}e[a]=l}}}(this,w),t.useProjection&&function(t,e){var r=t.$__schema,n=Object.keys(r.paths||{});if(!t._doc)return e;var i=t.$__.selected;if(void 0===i&&(i={},et.applyPaths(i,r)),null==i||0===Object.keys(i).length)return e;for(var o=0,a=n;o<a.length;o++){var s=a[o];null==i[s]||i[s]||delete e[s]}}(this,w),"function"==typeof E){var A=E(this,w,t);void 0!==A&&(w=A)}return w},_t.prototype.$__toObjectShallow=function(){var t={};if(null!=this._doc)for(var e=0,r=Object.keys(this._doc);e<r.length;e++){var n=r[e],i=this._doc[n];i instanceof Date?t[n]=new Date(i):void 0!==i&&(t[n]=i)}return t},_t.prototype.toObject=function(t){return this.$toObject(t)},_t.prototype.toJSON=function(t){return this.$toObject(t,!0)},_t.prototype.ownerDocument=function(){return this},_t.prototype.parent=function(){return this.$isSubdocument||this.$__.wasPopulated?this.$__.parent:this},_t.prototype.$parent=_t.prototype.parent,_t.prototype.inspect=function(t){var e;rt.isPOJO(t)&&((e=t).minimize=!1);var r=arguments.length>0?this.toObject(e):this.toObject();return null==r?"MongooseDocument { "+r+" }":r},G.custom&&(_t.prototype[G.custom]=_t.prototype.inspect),_t.prototype.toString=function(){var t=this.inspect();return"string"==typeof t?t:G(t)},_t.prototype.equals=function(t){if(!t)return!1;var e=this.$__getValue("_id"),r=null!=t.$__?t.$__getValue("_id"):t;return e||r?e&&e.equals?e.equals(r):e===r:it(this,t)},_t.prototype.populate=function(){var t=s(o().mark((function t(){var e,r,n,i,a,s,c,u,f,h,p=arguments;return o().wrap((function(t){for(;;)switch(t.prev=t.next){case 0:if(e={},"function"!=typeof(r=Array.prototype.slice.call(p))[r.length-1]){t.next=4;break}throw new S("Document.prototype.populate() no longer accepts a callback");case 4:if(0!==r.length){n=rt.populate.apply(null,r),i=l(n);try{for(i.s();!(a=i.n()).done;)s=a.value,e[s.path]=s}catch(t){i.e(t)}finally{i.f()}}return 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t.read[0]&&(t.read={mode:$(t.read[0]),tags:t.read[1]}),t.optimisticConcurrency&&!t.versionKey)throw new y("Must set `versionKey` if using `optimisticConcurrency`");return t},q.prototype.discriminator=function(t,e,r){return this._applyDiscriminators=this._applyDiscriminators||new Map,this._applyDiscriminators.set(t,{schema:e,options:r}),this},q.prototype._defaultToObjectOptions=function(t){var e=t?"toJSON":"toObject";if(this._defaultToObjectOptionsMap&&this._defaultToObjectOptionsMap[e])return this._defaultToObjectOptionsMap[e];var r=this.base&&this.base.options&&this.base.options[e]||{},n=this.options[e]||{},i=Object.assign({},r,n);return this._defaultToObjectOptionsMap=this._defaultToObjectOptionsMap||{},this._defaultToObjectOptionsMap[e]=i,i},q.prototype.add=function(t,e){if(t instanceof q||null!=t&&t.instanceOfSchema)return P(this,t),this;if(!1===t._id&&null==e&&(this.options._id=!1),"__proto__."===(e=e||"")||"constructor."===e||"prototype."===e)return this;for(var r=Object.keys(t),n=this.options.typeKey,i=0,o=r;i<o.length;i++){var u=o[i];if(!T.specialProperties.has(u)){var f=e+u,l=t[u];if(null==l)throw new TypeError("Invalid value for schema path `"+f+'`, got value "'+l+'"');if("_id"!==u||!1!==l){var h=!1;if("string"==typeof l&&(h=null!=(null!=this.base?this.base.Schema.Types:q.Types)[l.charAt(0).toUpperCase()+l.substring(1)]),"_id"!==u&&("object"!==s(l)&&"function"!=typeof l&&!h||null==l))throw new TypeError("Invalid schema configuration: `".concat(l,"` is not ")+"a valid type at path `".concat(u,"`. See ")+"https://bit.ly/mongoose-schematypes for a list of valid schema types.");if(l instanceof g||"VirtualType"===(l.constructor&&l.constructor.name||null))this.virtual(l);else{if(Array.isArray(l)&&1===l.length&&null==l[0])throw new TypeError("Invalid value for schema Array path `"+f+'`, got value "'+l[0]+'"');if(L(l)||l instanceof m)if(Object.keys(l).length<1)e&&(this.nested[e.substring(0,e.length-1)]=!0),this.path(f,l);else if(!l[n]||"type"===n&&L(l.type)&&l.type.type)this.nested[f]=!0,this.add(l,f+".");else{var p=l[n];if(L(p)&&Object.keys(p).length>0){e&&(this.nested[e.substring(0,e.length-1)]=!0);var d={};this._userProvidedOptions.typeKey&&(d.typeKey=this._userProvidedOptions.typeKey),null!=this._userProvidedOptions.strict&&(d.strict=this._userProvidedOptions.strict),null!=this._userProvidedOptions.toObject&&(d.toObject=T.omit(this._userProvidedOptions.toObject,["transform"])),null!=this._userProvidedOptions.toJSON&&(d.toJSON=T.omit(this._userProvidedOptions.toJSON,["transform"]));var y=new q(p,d);y.$implicitlyCreated=!0;var b=Object.assign({},l,a({},n,y));this.path(e+u,b)}else if(e&&(this.nested[e.substring(0,e.length-1)]=!0),this.path(e+u,l),null!=l&&!l.instanceOfSchema&&T.isPOJO(l.discriminators)){var v=this.path(e+u);for(var _ in l.discriminators)v.discriminator(_,l.discriminators[_])}}else if(e&&(this.nested[e.substring(0,e.length-1)]=!0),this.path(e+u,l),null!=l[0]&&!l[0].instanceOfSchema&&T.isPOJO(l[0].discriminators)){var w=this.path(e+u);for(var S in l[0].discriminators)w.discriminator(S,l[0].discriminators[S])}}}}}var O=Object.fromEntries(Object.entries(t).map((function(t){var r=c(t,1)[0];return[e+r,null]})));return F(this,O),this},q.prototype.alias=function(t,e){return F(this,a({},t,e)),this},q.prototype.removeIndex=function(t){if(arguments.length>1)throw new Error("removeIndex() takes only 1 argument");if("object"!==s(t)&&"string"!=typeof t)throw new Error("removeIndex() may only take either an object or a string as an argument");if("object"===s(t))for(var e=this._indexes.length-1;e>=0;--e)A(this._indexes[e][0],t)&&this._indexes.splice(e,1);else for(var r=this._indexes.length-1;r>=0;--r)null!=this._indexes[r][1]&&this._indexes[r][1].name===t&&this._indexes.splice(r,1);return this},q.prototype.clearIndexes=function(){return this._indexes.length=0,this},q.prototype.searchIndex=function(t){return this._searchIndexes.push(t),this},q.reserved=Object.create(null),q.prototype.reserved=q.reserved;var V=q.reserved;function z(t){return/\.\d+/.test(t)?t.replace(/\.\d+\./g,".$.").replace(/\.\d+$/,".$"):t}function K(t,e){if(0===t.mapPaths.length)return null;var r,n=u(t.mapPaths);try{for(n.s();!(r=n.n()).done;){var i=r.value.path;if(new RegExp("^"+i.replace(/\.\$\*/g,"\\.[^.]+")+"$").test(e))return t.paths[i]}}catch(t){n.e(t)}finally{n.f()}return null}function H(t,e,r){var n=e.split(/\.(\d+)\.|\.(\d+)$/).filter(Boolean);if(n.length<2)return t.paths.hasOwnProperty(n[0])?t.paths[n[0]]:"adhocOrUndefined";var i=t.path(n[0]),o=!1;if(!i)return"adhocOrUndefined";for(var a=n.length-1,s=1;s<n.length;++s){o=!1;var c=n[s];if(s===a&&i&&!/\D/.test(c)){i=i.$isMongooseDocumentArray?i.$embeddedSchemaType:i instanceof h.Array?i.caster:void 0;break}if(/\D/.test(c)){if(!i||!i.schema){i=void 0;break}o="nested"===i.schema.pathType(c),i=i.schema.path(c)}else i instanceof h.Array&&s!==a&&(i=i.caster)}return t.subpaths[r]=i,i?"real":o?"nested":"adhocOrUndefined"}function W(t,e){var r,n=u(t.childSchemas);try{for(n.s();!(r=n.n()).done;){var i=r.value.schema;i.$implicitlyCreated&&(Object.assign(i.options,e),W(i,e))}}catch(t){n.e(t)}finally{n.f()}}V.prototype=V.emit=V.listeners=V.removeListener=V.collection=V.errors=V.get=V.init=V.isModified=V.isNew=V.populated=V.remove=V.save=V.toObject=V.validate=1,V.collection=1,q.prototype.path=function(t,e){if(void 0===e){if(null!=this.paths[t])return this.paths[t];var r=z(t),n=function(t,e,r){if(t.paths.hasOwnProperty(e))return t.paths[e];if(t.subpaths.hasOwnProperty(r)){var n=t.subpaths[r];if("nested"===n)return;return n}if(t.singleNestedPaths.hasOwnProperty(r)&&"object"===s(t.singleNestedPaths[r])){var i=t.singleNestedPaths[r];if("nested"===i)return;return i}return null}(this,t,r);if(null!=n)return n;var i=K(this,t);return null!=i?i:null!=(n=this.hasMixedParent(r))?n:B.test(t)?function(t,e,r){return H(t,e,r),t.subpaths[r]}(this,t,r):void 0}var o=t.split(".")[0];if(V[o]&&!this.options.suppressReservedKeysWarning){var a="`".concat(o,"` is a reserved schema pathname and may break some functionality. ")+"You are allowed to use it, but use at your own risk. To disable this warning pass `suppressReservedKeysWarning` as a schema option.";T.warn(a)}"object"===s(e)&&T.hasUserDefinedProperty(e,"ref")&&I(e.ref,t);var c,f=t.split(/\./),l=f.pop(),h=this.tree,p="",d=u(f);try{for(d.s();!(c=d.n()).done;){var y=c.value;if(T.specialProperties.has(y))throw new Error("Cannot set special property `"+y+"` on a schema");if(p=p+=(p.length>0?".":"")+y,h[y]||(this.nested[p]=!0,h[y]={}),"object"!==s(h[y])){var m="Cannot set nested path `"+t+"`. Parent path `"+p+"` already set to type "+h[y].name+".";throw new Error(m)}h=h[y]}}catch(t){d.e(t)}finally{d.f()}h[l]=w(e),this.paths[t]=this.interpretAsType(t,e,this.options);var v=this.paths[t];if(v.$isSchemaMap){var g=t+".$*";this.paths[g]=v.$__schemaType,this.mapPaths.push(this.paths[g]),v.$__schemaType.$isSingleNested&&this.childSchemas.push({schema:v.$__schemaType.schema,model:v.$__schemaType.caster,path:t})}if(v.$isSingleNested){for(var _=0,S=Object.keys(v.schema.paths);_<S.length;_++){var O=S[_];this.singleNestedPaths[t+"."+O]=v.schema.paths[O]}for(var j=0,$=Object.keys(v.schema.singleNestedPaths);j<$.length;j++){var E=$[j];this.singleNestedPaths[t+"."+E]=v.schema.singleNestedPaths[E]}for(var A=0,P=Object.keys(v.schema.subpaths);A<P.length;A++){var x=P[A];this.singleNestedPaths[t+"."+x]=v.schema.subpaths[x]}for(var k=0,M=Object.keys(v.schema.nested);k<M.length;k++){var R=M[k];this.singleNestedPaths[t+"."+R]="nested"}Object.defineProperty(v.schema,"base",{configurable:!0,enumerable:!1,writable:!1,value:this.base}),v.caster.base=this.base,this.childSchemas.push({schema:v.schema,model:v.caster,path:t})}else v.$isMongooseDocumentArray&&(Object.defineProperty(v.schema,"base",{configurable:!0,enumerable:!1,writable:!1,value:this.base}),v.casterConstructor.base=this.base,this.childSchemas.push({schema:v.schema,model:v.casterConstructor,path:t}));if(v.$isMongooseArray&&v.caster instanceof b){for(var N=t,D=v;D.$isMongooseArray;)N+=".$",D.$isMongooseDocumentArray?(D.$embeddedSchemaType._arrayPath=N,D.$embeddedSchemaType._arrayParentPath=t,D=D.$embeddedSchemaType):(D.caster._arrayPath=N,D.caster._arrayParentPath=t,D=D.caster),this.subpaths[N]=D;for(var L=0,C=[];L<C.length;L++){var U=C[L];this.subpaths[U.path]=U}}if(v.$isMongooseDocumentArray){for(var q=0,F=Object.keys(v.schema.paths);q<F.length;q++){var W=F[q],J=v.schema.paths[W];this.subpaths[t+"."+W]=J,"object"===s(J)&&null!=J&&null==J.$parentSchemaDocArray&&(J.$parentSchemaDocArray=v)}for(var G=0,Y=Object.keys(v.schema.subpaths);G<Y.length;G++){var Q=Y[G],X=v.schema.subpaths[Q];this.subpaths[t+"."+Q]=X,"object"===s(X)&&null!=X&&null==X.$parentSchemaDocArray&&(X.$parentSchemaDocArray=v)}for(var Z=0,tt=Object.keys(v.schema.singleNestedPaths);Z<tt.length;Z++){var et=tt[Z],rt=v.schema.singleNestedPaths[et];this.subpaths[t+"."+et]=rt,"object"===s(rt)&&null!=rt&&null==rt.$parentSchemaDocArray&&(rt.$parentSchemaDocArray=v)}}return this},q.prototype._gatherChildSchemas=function(){for(var t=[],e=0,r=Object.keys(this.paths);e<r.length;e++){var n=r[e];if("string"==typeof n){var i=this.paths[n];i.$isMongooseDocumentArray||i.$isSingleNested?t.push({schema:i.schema,model:i.caster,path:n}):i.$isSchemaMap&&i.$__schemaType.$isSingleNested&&t.push({schema:i.$__schemaType.schema,model:i.$__schemaType.caster,path:n})}}return this.childSchemas=t,t},Object.defineProperty(q.prototype,"base",{configurable:!0,enumerable:!1,writable:!0,value:null}),q.prototype.interpretAsType=function(t,e,i){if(e instanceof b){if(e.path===t)return e;var o=e.clone();return o.path=t,o}var c=null!=this.base?this.base.Schema.Types:q.Types,u=null!=this.base?this.base.Types:r(1148);if(!(T.isPOJO(e)||e instanceof m)&&"Object"!==T.getFunctionName(e.constructor)){var f=e;(e={})[i.typeKey]=f}var l,h=e[i.typeKey]&&(e[i.typeKey]instanceof Function||"type"!==i.typeKey||!e.type.type)?e[i.typeKey]:{};if(T.isPOJO(h)||"mixed"===h)return new c.Mixed(t,e);if(Array.isArray(h)||h===Array||"array"===h||h===c.Array){var p=h===Array||"array"===h?e.cast||e.of:h[0];if(p&&p.instanceOfSchema){if(!(p instanceof q)){if(!this.options._isMerging)throw new TypeError("Schema for array path `"+t+"` is from a different copy of the Mongoose module. Please make sure you're using the same version of Mongoose everywhere with `npm list mongoose`. If you are still getting this error, please add `new Schema()` around the path: "+"".concat(t,": new Schema(...)"));p=new q(p)}return new c.DocumentArray(t,p,e)}if(p&&p[i.typeKey]&&p[i.typeKey].instanceOfSchema){if(!(p[i.typeKey]instanceof q)){if(!this.options._isMerging)throw new TypeError("Schema for array path `"+t+"` is from a different copy of the Mongoose module. Please make sure you're using the same version of Mongoose everywhere with `npm list mongoose`. If you are still getting this error, please add `new Schema()` around the path: "+"".concat(t,": new Schema(...)"));p[i.typeKey]=new q(p[i.typeKey])}return new c.DocumentArray(t,p[i.typeKey],e,p)}if(void 0!==p&&(Array.isArray(p)||p.type===Array||"Array"==p.type))return p&&"Array"==p.type&&(p.type=Array),new c.Array(t,this.interpretAsType(t,p,i),e);var d=null==p||!p[i.typeKey]||"type"===i.typeKey&&p.type.type?p:p[i.typeKey];if("string"==typeof p)p=c[p.charAt(0).toUpperCase()+p.substring(1)];else if(T.isPOJO(d)){if(Object.keys(d).length){var v={minimize:i.minimize};i.typeKey&&(v.typeKey=i.typeKey),i.hasOwnProperty("strict")&&(v.strict=i.strict),i.hasOwnProperty("strictQuery")&&(v.strictQuery=i.strictQuery),i.hasOwnProperty("toObject")&&(v.toObject=T.omit(i.toObject,["transform"])),i.hasOwnProperty("toJSON")&&(v.toJSON=T.omit(i.toJSON,["transform"])),this._userProvidedOptions.hasOwnProperty("_id")?v._id=this._userProvidedOptions._id:null!=q.Types.DocumentArray.defaultOptions._id&&(v._id=q.Types.DocumentArray.defaultOptions._id);var g=new q(d,v);return g.$implicitlyCreated=!0,new c.DocumentArray(t,g,e)}return new c.Array(t,c.Mixed,e)}if(p){if(h=!p[i.typeKey]||"type"===i.typeKey&&p.type.type?p:p[i.typeKey],Array.isArray(h))return new c.Array(t,this.interpretAsType(t,h,i),e);if("ClockDate"===(l="string"==typeof h?h:h.schemaName||T.getFunctionName(h))&&(l="Date"),void 0===l)throw new TypeError("Invalid schema configuration: "+"Could not determine the embedded type for array `".concat(t,"`. ")+"See https://mongoosejs.com/docs/guide.html#definition for more info on supported schema syntaxes.");if(!c.hasOwnProperty(l))throw new TypeError("Invalid schema configuration: "+"`".concat(l,"` is not a valid type within the array `").concat(t,"`.")+"See https://bit.ly/mongoose-schematypes for a list of valid schema types.")}return new c.Array(t,p||c.Mixed,e,i)}if(h&&h.instanceOfSchema)return new c.Subdocument(h,t,e);if((l=n.isBuffer(h)?"Buffer":"function"==typeof h||"object"===s(h)?h.schemaName||T.getFunctionName(h):h===u.ObjectId?"ObjectId":h===u.Decimal128?"Decimal128":null==h?""+h:h.toString())&&(l=l.charAt(0).toUpperCase()+l.substring(1)),"ObjectID"===l&&(l="ObjectId"),"ClockDate"===l&&(l="Date"),void 0===l)throw new TypeError("Invalid schema configuration: `".concat(t,"` schematype definition is ")+"invalid. See https://mongoosejs.com/docs/guide.html#definition for more info on supported schema syntaxes.");if(null==c[l])throw new TypeError("Invalid schema configuration: `".concat(l,"` is not ")+"a valid type at path `".concat(t,"`. See ")+"https://bit.ly/mongoose-schematypes for a list of valid schema types.");var _=new c[l](t,e);return _.$isSchemaMap&&function(t,e,r,n,i){var o=r+".$*",s={type:{}};T.hasUserDefinedProperty(n,"of")&&((s=T.isPOJO(n.of)&&Object.keys(n.of).length>0&&!T.hasUserDefinedProperty(n.of,t.options.typeKey)?a({},t.options.typeKey,new q(n.of)):T.isPOJO(n.of)?Object.assign({},n.of):a({},t.options.typeKey,n.of))[t.options.typeKey]&&s[t.options.typeKey].instanceOfSchema&&s[t.options.typeKey].eachPath((function(t,e){if(!0===e.options.select||!1===e.options.select)throw new y('Cannot use schema-level projections (`select: true` or `select: false`) within maps at path "'+r+"."+t+'"')})),T.hasUserDefinedProperty(n,"ref")&&(s.ref=n.ref)),e.$__schemaType=t.interpretAsType(o,s,i)}(this,_,t,e,i),_},q.prototype.eachPath=function(t){for(var e=Object.keys(this.paths),r=e.length,n=0;n<r;++n)t(e[n],this.paths[e[n]]);return this},q.prototype.requiredPaths=function(t){if(this._requiredpaths&&!t)return this._requiredpaths;for(var e=Object.keys(this.paths),r=e.length,n=[];r--;){var i=e[r];this.paths[i].isRequired&&n.push(i)}return this._requiredpaths=n,this._requiredpaths},q.prototype.indexedPaths=function(){return this._indexedpaths||(this._indexedpaths=this.indexes()),this._indexedpaths},q.prototype.pathType=function(t){if(this.paths.hasOwnProperty(t))return"real";if(this.virtuals.hasOwnProperty(t))return"virtual";if(this.nested.hasOwnProperty(t))return"nested";var e=z(t);if(this.subpaths.hasOwnProperty(e)||this.subpaths.hasOwnProperty(t))return"real";var r=this.singleNestedPaths.hasOwnProperty(e)||this.singleNestedPaths.hasOwnProperty(t);return r?"nested"===r?"nested":"real":null!=K(this,t)?"real":/\.\d+\.|\.\d+$/.test(t)?H(this,t,e):"adhocOrUndefined"},q.prototype.hasMixedParent=function(t){var e=t.split(/\./g);t="";for(var r=0;r<e.length;++r)if(t=r>0?t+"."+e[r]:e[r],this.paths.hasOwnProperty(t)&&this.paths[t]instanceof h.Mixed)return this.paths[t];return null},q.prototype.setupTimestamp=function(t){return M(this,t)},q.prototype.queue=function(t,e){return this.callQueue.push([t,e]),this},q.prototype.pre=function(t){if(t instanceof RegExp){var e,r=Array.prototype.slice.call(arguments,1),n=u(D);try{for(n.s();!(e=n.n()).done;){var i=e.value;t.test(i)&&this.pre.apply(this,[i].concat(r))}}catch(t){n.e(t)}finally{n.f()}return this}if(Array.isArray(t)){var o,a=Array.prototype.slice.call(arguments,1),s=u(t);try{for(s.s();!(o=s.n()).done;){var c=o.value;this.pre.apply(this,[c].concat(a))}}catch(t){s.e(t)}finally{s.f()}return this}return this.s.hooks.pre.apply(this.s.hooks,arguments),this},q.prototype.post=function(t){if(t instanceof RegExp){var e,r=Array.prototype.slice.call(arguments,1),n=u(D);try{for(n.s();!(e=n.n()).done;){var i=e.value;t.test(i)&&this.post.apply(this,[i].concat(r))}}catch(t){n.e(t)}finally{n.f()}return this}if(Array.isArray(t)){var o,a=Array.prototype.slice.call(arguments,1),s=u(t);try{for(s.s();!(o=s.n()).done;){var c=o.value;this.post.apply(this,[c].concat(a))}}catch(t){s.e(t)}finally{s.f()}return this}return this.s.hooks.post.apply(this.s.hooks,arguments),this},q.prototype.plugin=function(t,e){if("function"!=typeof t)throw new Error('First param to `schema.plugin()` must be a function, got "'+s(t)+'"');if(e&&e.deduplicate){var r,n=u(this.plugins);try{for(n.s();!(r=n.n()).done;)if(r.value.fn===t)return this}catch(t){n.e(t)}finally{n.f()}}return this.plugins.push({fn:t,opts:e}),t(this,e),this},q.prototype.method=function(t,e,r){if("string"!=typeof t)for(var n in t)this.methods[n]=t[n],this.methodOptions[n]=w(r);else this.methods[t]=e,this.methodOptions[t]=w(r);return this},q.prototype.static=function(t,e){if("string"!=typeof t)for(var r in t)this.statics[r]=t[r];else this.statics[t]=e;return this},q.prototype.index=function(t,e){for(var r in t||(t={}),e||(e={}),e.expires&&T.expires(e),t)this.aliases[r]&&(t=T.renameObjKey(t,r,this.aliases[r]));for(var n=0,i=Object.keys(t);n<i.length;n++){var o=i[n];"ascending"===t[o]||"asc"===t[o]?t[o]=1:"descending"!==t[o]&&"desc"!==t[o]||(t[o]=-1)}var a,s=u(this.indexes());try{for(s.s();!(a=s.n()).done;){var c=a.value;null==e.name&&null==c[1].name&&A(c[0],t)&&T.warn("Duplicate schema index on ".concat(JSON.stringify(t),' found. This is often due to declaring an index using both "index: true" and "schema.index()". Please remove the duplicate index definition.'))}}catch(t){s.e(t)}finally{s.f()}return this._indexes.push([t,e]),this},q.prototype.set=function(t,e,r){if(1===arguments.length)return this.options[t];switch(t){case"read":"string"==typeof e?this.options[t]={mode:$(e),tags:r}:Array.isArray(e)&&"string"==typeof e[0]?this.options[t]={mode:$(e[0]),tags:e[1]}:this.options[t]=e,this._userProvidedOptions[t]=this.options[t];break;case"timestamps":this.setupTimestamp(e),this.options[t]=e,this._userProvidedOptions[t]=this.options[t];break;case"_id":this.options[t]=e,this._userProvidedOptions[t]=this.options[t],e&&!this.paths._id?_(this):!e&&null!=this.paths._id&&this.paths._id.auto&&this.remove("_id");break;default:this.options[t]=e,this._userProvidedOptions[t]=this.options[t]}return"strict"===t&&W(this,{strict:e}),"strictQuery"===t&&W(this,{strictQuery:e}),"toObject"===t&&(delete(e=o({},e)).transform,W(this,{toObject:e})),"toJSON"===t&&(delete(e=o({},e)).transform,W(this,{toJSON:e})),this},q.prototype.get=function(t){return this.options[t]};var J="2d 2dsphere hashed text".split(" ");function G(t,e){var r,n=e.split("."),i=n.pop(),o=t.tree,a=u(n);try{for(a.s();!(r=a.n()).done;)o=o[r.value]}catch(t){a.e(t)}finally{a.f()}delete o[i]}function Y(t){return t.startsWith("$[")&&t.endsWith("]")}Object.defineProperty(q,"indexTypes",{get:function(){return J},set:function(){throw new Error("Cannot overwrite Schema.indexTypes")}}),q.prototype.indexes=function(){return j(this)},q.prototype.virtual=function(t,e){if(t instanceof g||"VirtualType"===O(t))return this.virtual(t.path,t.options);if(e=new v(e),T.hasUserDefinedProperty(e,["ref","refPath"])){if(null==e.localField)throw new Error("Reference virtuals require `localField` option");if(null==e.foreignField)throw new Error("Reference virtuals require `foreignField` option");var r=this.virtual(t);r.options=e,this.pre("init",(function(n,i){if(x.has(t,n)){var o=x.get(t,n);if(this.$$populatedVirtuals||(this.$$populatedVirtuals={}),e.justOne||e.count?this.$$populatedVirtuals[t]=Array.isArray(o)?o[0]:o:this.$$populatedVirtuals[t]=Array.isArray(o)?o:null==o?[]:[o],null!=i&&i.hydratedPopulatedDocs&&!e.count){var a=r._getModelNamesForPopulate(this),s=this.$$populatedVirtuals[t];if(Array.isArray(s)||s.$__||1!==(null==a?void 0:a.length)){if(Array.isArray(s)&&1===(null==a?void 0:a.length))for(var c=this.db.model(a[0]),u=0;u<s.length;++u)s[u].$__||(s[u]=c.hydrate(s[u]))}else{var f=this.db.model(a[0]);this.$$populatedVirtuals[t]=f.hydrate(s)}}x.unset(t,n)}})),r.set((function(r){return this.$$populatedVirtuals||(this.$$populatedVirtuals={}),k(this.$$populatedVirtuals,t,r,e)})),"function"==typeof e.get&&r.get(e.get);for(var n=t.split("."),i=n[0],o=0;o<n.length-1;++o)if(null!=this.paths[i]){if(this.paths[i].$isMongooseDocumentArray||this.paths[i].$isSingleNested){var a=n.slice(o+1).join(".");this.paths[i].schema.virtual(a,e);break}i+="."+n[o+1]}return r}var s=this.virtuals,c=t.split(".");if("real"===this.pathType(t))throw new Error('Virtual path "'+t+'" conflicts with a real path in the schema');if(s[t]=c.reduce((function(r,n,i){return r[n]||(r[n]=i===c.length-1?new 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0;return"$"===e[a]||Y(e[a])?a+1===e.length?i.$embeddedSchemaType:((s=t(e.slice(a+1),i.schema))&&(s.$parentSchemaDocArray=s.$parentSchemaDocArray||(i.schema.$isSingleNested?null:i)),s):((s=t(e.slice(a),i.schema))&&(s.$parentSchemaDocArray=s.$parentSchemaDocArray||(i.schema.$isSingleNested?null:i)),s)}}}else if(i.$isSchemaMap){if(a>=e.length)return i;if(a+1>=e.length)return i.$__schemaType;if(i.$__schemaType instanceof h.Mixed)return i.$__schemaType;if(null!=i.$__schemaType.schema)return t(e.slice(a+1),i.$__schemaType.schema)}return i.$fullPath=r.join("."),i}}(n,this)},q.prototype._getPathType=function(t){return this.path(t)?"real":function t(e,r){for(var n,i,o=e.length+1;o--;){if(i=e.slice(0,o).join("."),n=r.path(i))return n.caster?n.caster instanceof h.Mixed?{schema:n,pathType:"mixed"}:o!==e.length&&n.schema?"$"===e[o]||Y(e[o])?o===e.length-1?{schema:n,pathType:"nested"}:t(e.slice(o+1),n.schema):t(e.slice(o),n.schema):{schema:n,pathType:n.$isSingleNested?"nested":"array"}:{schema:n,pathType:"real"};if(o===e.length&&r.nested[i])return{schema:r,pathType:"nested"}}return{schema:n||r,pathType:"undefined"}}(t.split("."),this)},q.prototype._transformDuplicateKeyError=function(t){if(!this._duplicateKeyErrorMessagesByPath)return t;if(11e3!==t.code&&11001!==t.code)return t;if(null!=t.keyPattern){var e=t.keyPattern,r=Object.keys(e);if(1!==r.length)return t;var n=r[0];return this._duplicateKeyErrorMessagesByPath.hasOwnProperty(n)?new y(this._duplicateKeyErrorMessagesByPath[n],{cause:t}):t}return t},q.prototype._preCompile=function(){this.plugin(E,{deduplicate:!0})},t.exports=e=q,q.Types=h=r(2176),e.ObjectId=h.ObjectId},9225:(t,e,r)=>{"use strict";function n(t,e){(null==e||e>t.length)&&(e=t.length);for(var r=0,n=Array(e);r<e;r++)n[r]=t[r];return n}function i(t){return i="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},i(t)}var o,a,s=r(1188),c=r(3180),u=r(7026),f=r(2685),l=r(2319),h=l.CastError,p=r(1895),d=r(384),y=r(5165),b=r(3164),m=r(8447),v=r(1829),g=r(5857),_=r(499),w=r(7352),S=r(335),O=r(4111).G,j=r(6951),$=r(7785),E=Symbol("mongoose#isNestedArray"),A=Object.freeze({});function P(t,e,n,i){a||(a=r(1148).Embedded);var o,s,c="type";if(i&&i.typeKey&&(c=i.typeKey),this.schemaOptions=i,e){var u={};S.isPOJO(e)&&(e[c]?(delete(u=v(e))[c],e=e[c]):e=p),null!=n&&null!=n.ref&&null==u.ref&&(u.ref=n.ref),e===Object&&(e=p);var f="string"==typeof e?e:S.getFunctionName(e),h=r(2176),d=h.hasOwnProperty(f)?h[f]:e;if(this.casterConstructor=d,this.casterConstructor instanceof P&&(this.casterConstructor[E]=!0),"function"!=typeof d||d.$isArraySubdocument||d.$isSchemaMap)this.caster=d,this.caster instanceof a||(this.caster.path=t);else{var y=this.caster instanceof a?null:t;this.caster=new d(y,u)}this.$embeddedSchemaType=this.caster}if(this.$isMongooseArray=!0,l.call(this,t,n,"Array"),null!=this.defaultValue&&(o=this.defaultValue,s="function"==typeof o),!("defaultValue"in this)||null!=this.defaultValue){var b=function(){return s?o.call(this):null!=o?[].concat(o):[]};b.$runBeforeSetters=!s,this.default(b)}}P.schemaName="Array",P.options={castNonArrays:!0},P.defaultOptions={},P.set=l.set,P.setters=[],P.get=l.get,P.prototype=Object.create(l.prototype),P.prototype.constructor=P,P.prototype.OptionsConstructor=f,P._checkRequired=l.prototype.checkRequired,P.checkRequired=l.checkRequired,P.prototype.virtuals=null,P.prototype.checkRequired=function(t,e){return"object"===i(t)&&l._isRef(this,t,e,!0)?!!t:("function"==typeof this.constructor.checkRequired?this.constructor.checkRequired():P.checkRequired())(t)},P.prototype.enum=function(){for(var t=this;;){var e=t&&t.caster&&t.caster.instance;if("Array"!==e){if("String"!==e&&"Number"!==e)throw new Error("`enum` can only be set on an array of strings or numbers , not "+e);break}t=t.caster}var r=arguments;return!Array.isArray(arguments)&&S.isObject(arguments)&&(r=S.object.vals(r)),t.caster.enum.apply(t.caster,r),this},P.prototype.applyGetters=function(t,e){return null!=e&&null!=e.$__&&e.$populated(this.path)?t:l.prototype.applyGetters.call(this,t,e)},P.prototype._applySetters=function(t,e,r,n){if(this.casterConstructor.$isMongooseArray&&P.options.castNonArrays&&!this[E]){for(var i=0,o=this;null!=o&&o.$isMongooseArray&&!o.$isMongooseDocumentArray;)++i,o=o.casterConstructor;if(null!=t&&0!==t.length){var a=b(t);if(a.min===a.max&&a.max<i&&a.containsNonArrayItem)for(var s=a.max;s<i;++s)t=[t]}}return l.prototype._applySetters.call(this,t,e,r,n)},P.prototype.cast=function(t,e,n,i,a){var s,c;if(o||(o=r(1148).Array),Array.isArray(t)){if(!t.length&&e){var u=e.schema.indexedPaths(),f=this.path;for(s=0,c=u.length;s<c;++s){var l=u[s][0][f];if("2dsphere"===l||"2d"===l)return}var d=this.path.endsWith(".coordinates")?this.path.substring(0,this.path.lastIndexOf(".")):null;if(null!=d)for(s=0,c=u.length;s<c;++s)if("2dsphere"===u[s][0][d])return}a=a||A;var y=S.isMongooseArray(t)?t.__array:t,b=a.path||this.path;if(null!=a.arrayPathIndex&&(b+="."+a.arrayPathIndex),y=(t=o(y,b,e,this)).__array,n&&null!=e&&null!=e.$__&&e.$populated(this.path))return t;var m=this.caster,v=m.$isMongooseArray;if(m&&this.casterConstructor!==p)try{var g=y.length;for(s=0;s<g;s++){var _={};v&&(null!=a.arrayPath||null!=m._arrayParentPath)&&(_.arrayPathIndex=s),y[s]=m.applySetters(y[s],e,n,void 0,_)}}catch(e){throw new h("["+e.kind+"]",w.inspect(t),this.path+"."+s,e,this)}return t}var O=null!=this.options.castNonArrays?this.options.castNonArrays:P.options.castNonArrays;if(n||O)return e&&n&&e.markModified(this.path),this.cast([t],e,n);throw new h("Array",w.inspect(t),this.path,null,this)},P.prototype._castForPopulate=function(t,e){if(o||(o=r(1148).Array),Array.isArray(t)){var n,i=t.__array?t.__array:t,a=i.length,s=this.caster;if(s&&this.casterConstructor!==p)try{for(n=0;n<a;n++){var c={};s.$isMongooseArray&&null!=s._arrayParentPath&&(c.arrayPathIndex=n),i[n]=s.cast(i[n],e,!1,void 0,c)}}catch(e){throw new h("["+e.kind+"]",w.inspect(t),this.path+"."+n,e,this)}return t}throw new h("Array",w.inspect(t),this.path,null,this)},P.prototype.$toObject=P.prototype.toObject,P.prototype.discriminator=function(){for(var t,e=this;e.$isMongooseArray&&!e.$isMongooseDocumentArray;)if(null==(e=e.casterConstructor)||"function"==typeof e)throw new u("You can only add an embedded discriminator on a document array, "+this.path+" is a plain 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a=this.words[i]<<o|n;t[r++]=255&a,r<t.length&&(t[r++]=a>>8&255),r<t.length&&(t[r++]=a>>16&255),6===o?(r<t.length&&(t[r++]=a>>24&255),n=0,o=0):(n=a>>>24,o+=2)}if(r<t.length)for(t[r++]=n;r<t.length;)t[r++]=0},a.prototype._toArrayLikeBE=function(t,e){for(var r=t.length-1,n=0,i=0,o=0;i<this.length;i++){var a=this.words[i]<<o|n;t[r--]=255&a,r>=0&&(t[r--]=a>>8&255),r>=0&&(t[r--]=a>>16&255),6===o?(r>=0&&(t[r--]=a>>24&255),n=0,o=0):(n=a>>>24,o+=2)}if(r>=0)for(t[r--]=n;r>=0;)t[r--]=0},Math.clz32?a.prototype._countBits=function(t){return 32-Math.clz32(t)}:a.prototype._countBits=function(t){var e=t,r=0;return e>=4096&&(r+=13,e>>>=13),e>=64&&(r+=7,e>>>=7),e>=8&&(r+=4,e>>>=4),e>=2&&(r+=2,e>>>=2),r+e},a.prototype._zeroBits=function(t){if(0===t)return 26;var e=t,r=0;return 8191&e||(r+=13,e>>>=13),127&e||(r+=7,e>>>=7),15&e||(r+=4,e>>>=4),3&e||(r+=2,e>>>=2),1&e||r++,r},a.prototype.bitLength=function(){var t=this.words[this.length-1],e=this._countBits(t);return 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this.length>t.length?this.clone().ior(t):t.clone().ior(this)},a.prototype.uor=function(t){return this.length>t.length?this.clone().iuor(t):t.clone().iuor(this)},a.prototype.iuand=function(t){var e;e=this.length>t.length?t:this;for(var r=0;r<e.length;r++)this.words[r]=this.words[r]&t.words[r];return this.length=e.length,this._strip()},a.prototype.iand=function(t){return i(!(this.negative|t.negative)),this.iuand(t)},a.prototype.and=function(t){return this.length>t.length?this.clone().iand(t):t.clone().iand(this)},a.prototype.uand=function(t){return this.length>t.length?this.clone().iuand(t):t.clone().iuand(this)},a.prototype.iuxor=function(t){var e,r;this.length>t.length?(e=this,r=t):(e=t,r=this);for(var n=0;n<r.length;n++)this.words[n]=e.words[n]^r.words[n];if(this!==e)for(;n<e.length;n++)this.words[n]=e.words[n];return this.length=e.length,this._strip()},a.prototype.ixor=function(t){return i(!(this.negative|t.negative)),this.iuxor(t)},a.prototype.xor=function(t){return this.length>t.length?this.clone().ixor(t):t.clone().ixor(this)},a.prototype.uxor=function(t){return this.length>t.length?this.clone().iuxor(t):t.clone().iuxor(this)},a.prototype.inotn=function(t){i("number"==typeof t&&t>=0);var e=0|Math.ceil(t/26),r=t%26;this._expand(e),r>0&&e--;for(var n=0;n<e;n++)this.words[n]=67108863&~this.words[n];return r>0&&(this.words[n]=~this.words[n]&67108863>>26-r),this._strip()},a.prototype.notn=function(t){return this.clone().inotn(t)},a.prototype.setn=function(t,e){i("number"==typeof t&&t>=0);var r=t/26|0,n=t%26;return this._expand(r+1),this.words[r]=e?this.words[r]|1<<n:this.words[r]&~(1<<n),this._strip()},a.prototype.iadd=function(t){var e,r,n;if(0!==this.negative&&0===t.negative)return this.negative=0,e=this.isub(t),this.negative^=1,this._normSign();if(0===this.negative&&0!==t.negative)return t.negative=0,e=this.isub(t),t.negative=1,e._normSign();this.length>t.length?(r=this,n=t):(r=t,n=this);for(var i=0,o=0;o<n.length;o++)e=(0|r.words[o])+(0|n.words[o])+i,this.words[o]=67108863&e,i=e>>>26;for(;0!==i&&o<r.length;o++)e=(0|r.words[o])+i,this.words[o]=67108863&e,i=e>>>26;if(this.length=r.length,0!==i)this.words[this.length]=i,this.length++;else if(r!==this)for(;o<r.length;o++)this.words[o]=r.words[o];return this},a.prototype.add=function(t){var e;return 0!==t.negative&&0===this.negative?(t.negative=0,e=this.sub(t),t.negative^=1,e):0===t.negative&&0!==this.negative?(this.negative=0,e=t.sub(this),this.negative=1,e):this.length>t.length?this.clone().iadd(t):t.clone().iadd(this)},a.prototype.isub=function(t){if(0!==t.negative){t.negative=0;var e=this.iadd(t);return t.negative=1,e._normSign()}if(0!==this.negative)return this.negative=0,this.iadd(t),this.negative=1,this._normSign();var r,n,i=this.cmp(t);if(0===i)return this.negative=0,this.length=1,this.words[0]=0,this;i>0?(r=this,n=t):(r=t,n=this);for(var o=0,a=0;a<n.length;a++)o=(e=(0|r.words[a])-(0|n.words[a])+o)>>26,this.words[a]=67108863&e;for(;0!==o&&a<r.length;a++)o=(e=(0|r.words[a])+o)>>26,this.words[a]=67108863&e;if(0===o&&a<r.length&&r!==this)for(;a<r.length;a++)this.words[a]=r.words[a];return this.length=Math.max(this.length,a),r!==this&&(this.negative=1),this._strip()},a.prototype.sub=function(t){return this.clone().isub(t)};var m=function(t,e,r){var n,i,o,a=t.words,s=e.words,c=r.words,u=0,f=0|a[0],l=8191&f,h=f>>>13,p=0|a[1],d=8191&p,y=p>>>13,b=0|a[2],m=8191&b,v=b>>>13,g=0|a[3],_=8191&g,w=g>>>13,S=0|a[4],O=8191&S,j=S>>>13,$=0|a[5],E=8191&$,A=$>>>13,P=0|a[6],x=8191&P,k=P>>>13,M=0|a[7],T=8191&M,I=M>>>13,B=0|a[8],R=8191&B,N=B>>>13,D=0|a[9],L=8191&D,C=D>>>13,U=0|s[0],q=8191&U,F=U>>>13,V=0|s[1],z=8191&V,K=V>>>13,H=0|s[2],W=8191&H,J=H>>>13,G=0|s[3],Y=8191&G,Q=G>>>13,X=0|s[4],Z=8191&X,tt=X>>>13,et=0|s[5],rt=8191&et,nt=et>>>13,it=0|s[6],ot=8191&it,at=it>>>13,st=0|s[7],ct=8191&st,ut=st>>>13,ft=0|s[8],lt=8191&ft,ht=ft>>>13,pt=0|s[9],dt=8191&pt,yt=pt>>>13;r.negative=t.negative^e.negative,r.length=19;var bt=(u+(n=Math.imul(l,q))|0)+((8191&(i=(i=Math.imul(l,F))+Math.imul(h,q)|0))<<13)|0;u=((o=Math.imul(h,F))+(i>>>13)|0)+(bt>>>26)|0,bt&=67108863,n=Math.imul(d,q),i=(i=Math.imul(d,F))+Math.imul(y,q)|0,o=Math.imul(y,F);var mt=(u+(n=n+Math.imul(l,z)|0)|0)+((8191&(i=(i=i+Math.imul(l,K)|0)+Math.imul(h,z)|0))<<13)|0;u=((o=o+Math.imul(h,K)|0)+(i>>>13)|0)+(mt>>>26)|0,mt&=67108863,n=Math.imul(m,q),i=(i=Math.imul(m,F))+Math.imul(v,q)|0,o=Math.imul(v,F),n=n+Math.imul(d,z)|0,i=(i=i+Math.imul(d,K)|0)+Math.imul(y,z)|0,o=o+Math.imul(y,K)|0;var vt=(u+(n=n+Math.imul(l,W)|0)|0)+((8191&(i=(i=i+Math.imul(l,J)|0)+Math.imul(h,W)|0))<<13)|0;u=((o=o+Math.imul(h,J)|0)+(i>>>13)|0)+(vt>>>26)|0,vt&=67108863,n=Math.imul(_,q),i=(i=Math.imul(_,F))+Math.imul(w,q)|0,o=Math.imul(w,F),n=n+Math.imul(m,z)|0,i=(i=i+Math.imul(m,K)|0)+Math.imul(v,z)|0,o=o+Math.imul(v,K)|0,n=n+Math.imul(d,W)|0,i=(i=i+Math.imul(d,J)|0)+Math.imul(y,W)|0,o=o+Math.imul(y,J)|0;var gt=(u+(n=n+Math.imul(l,Y)|0)|0)+((8191&(i=(i=i+Math.imul(l,Q)|0)+Math.imul(h,Y)|0))<<13)|0;u=((o=o+Math.imul(h,Q)|0)+(i>>>13)|0)+(gt>>>26)|0,gt&=67108863,n=Math.imul(O,q),i=(i=Math.imul(O,F))+Math.imul(j,q)|0,o=Math.imul(j,F),n=n+Math.imul(_,z)|0,i=(i=i+Math.imul(_,K)|0)+Math.imul(w,z)|0,o=o+Math.imul(w,K)|0,n=n+Math.imul(m,W)|0,i=(i=i+Math.imul(m,J)|0)+Math.imul(v,W)|0,o=o+Math.imul(v,J)|0,n=n+Math.imul(d,Y)|0,i=(i=i+Math.imul(d,Q)|0)+Math.imul(y,Y)|0,o=o+Math.imul(y,Q)|0;var _t=(u+(n=n+Math.imul(l,Z)|0)|0)+((8191&(i=(i=i+Math.imul(l,tt)|0)+Math.imul(h,Z)|0))<<13)|0;u=((o=o+Math.imul(h,tt)|0)+(i>>>13)|0)+(_t>>>26)|0,_t&=67108863,n=Math.imul(E,q),i=(i=Math.imul(E,F))+Math.imul(A,q)|0,o=Math.imul(A,F),n=n+Math.imul(O,z)|0,i=(i=i+Math.imul(O,K)|0)+Math.imul(j,z)|0,o=o+Math.imul(j,K)|0,n=n+Math.imul(_,W)|0,i=(i=i+Math.imul(_,J)|0)+Math.imul(w,W)|0,o=o+Math.imul(w,J)|0,n=n+Math.imul(m,Y)|0,i=(i=i+Math.imul(m,Q)|0)+Math.imul(v,Y)|0,o=o+Math.imul(v,Q)|0,n=n+Math.imul(d,Z)|0,i=(i=i+Math.imul(d,tt)|0)+Math.imul(y,Z)|0,o=o+Math.imul(y,tt)|0;var wt=(u+(n=n+Math.imul(l,rt)|0)|0)+((8191&(i=(i=i+Math.imul(l,nt)|0)+Math.imul(h,rt)|0))<<13)|0;u=((o=o+Math.imul(h,nt)|0)+(i>>>13)|0)+(wt>>>26)|0,wt&=67108863,n=Math.imul(x,q),i=(i=Math.imul(x,F))+Math.imul(k,q)|0,o=Math.imul(k,F),n=n+Math.imul(E,z)|0,i=(i=i+Math.imul(E,K)|0)+Math.imul(A,z)|0,o=o+Math.imul(A,K)|0,n=n+Math.imul(O,W)|0,i=(i=i+Math.imul(O,J)|0)+Math.imul(j,W)|0,o=o+Math.imul(j,J)|0,n=n+Math.imul(_,Y)|0,i=(i=i+Math.imul(_,Q)|0)+Math.imul(w,Y)|0,o=o+Math.imul(w,Q)|0,n=n+Math.imul(m,Z)|0,i=(i=i+Math.imul(m,tt)|0)+Math.imul(v,Z)|0,o=o+Math.imul(v,tt)|0,n=n+Math.imul(d,rt)|0,i=(i=i+Math.imul(d,nt)|0)+Math.imul(y,rt)|0,o=o+Math.imul(y,nt)|0;var St=(u+(n=n+Math.imul(l,ot)|0)|0)+((8191&(i=(i=i+Math.imul(l,at)|0)+Math.imul(h,ot)|0))<<13)|0;u=((o=o+Math.imul(h,at)|0)+(i>>>13)|0)+(St>>>26)|0,St&=67108863,n=Math.imul(T,q),i=(i=Math.imul(T,F))+Math.imul(I,q)|0,o=Math.imul(I,F),n=n+Math.imul(x,z)|0,i=(i=i+Math.imul(x,K)|0)+Math.imul(k,z)|0,o=o+Math.imul(k,K)|0,n=n+Math.imul(E,W)|0,i=(i=i+Math.imul(E,J)|0)+Math.imul(A,W)|0,o=o+Math.imul(A,J)|0,n=n+Math.imul(O,Y)|0,i=(i=i+Math.imul(O,Q)|0)+Math.imul(j,Y)|0,o=o+Math.imul(j,Q)|0,n=n+Math.imul(_,Z)|0,i=(i=i+Math.imul(_,tt)|0)+Math.imul(w,Z)|0,o=o+Math.imul(w,tt)|0,n=n+Math.imul(m,rt)|0,i=(i=i+Math.imul(m,nt)|0)+Math.imul(v,rt)|0,o=o+Math.imul(v,nt)|0,n=n+Math.imul(d,ot)|0,i=(i=i+Math.imul(d,at)|0)+Math.imul(y,ot)|0,o=o+Math.imul(y,at)|0;var Ot=(u+(n=n+Math.imul(l,ct)|0)|0)+((8191&(i=(i=i+Math.imul(l,ut)|0)+Math.imul(h,ct)|0))<<13)|0;u=((o=o+Math.imul(h,ut)|0)+(i>>>13)|0)+(Ot>>>26)|0,Ot&=67108863,n=Math.imul(R,q),i=(i=Math.imul(R,F))+Math.imul(N,q)|0,o=Math.imul(N,F),n=n+Math.imul(T,z)|0,i=(i=i+Math.imul(T,K)|0)+Math.imul(I,z)|0,o=o+Math.imul(I,K)|0,n=n+Math.imul(x,W)|0,i=(i=i+Math.imul(x,J)|0)+Math.imul(k,W)|0,o=o+Math.imul(k,J)|0,n=n+Math.imul(E,Y)|0,i=(i=i+Math.imul(E,Q)|0)+Math.imul(A,Y)|0,o=o+Math.imul(A,Q)|0,n=n+Math.imul(O,Z)|0,i=(i=i+Math.imul(O,tt)|0)+Math.imul(j,Z)|0,o=o+Math.imul(j,tt)|0,n=n+Math.imul(_,rt)|0,i=(i=i+Math.imul(_,nt)|0)+Math.imul(w,rt)|0,o=o+Math.imul(w,nt)|0,n=n+Math.imul(m,ot)|0,i=(i=i+Math.imul(m,at)|0)+Math.imul(v,ot)|0,o=o+Math.imul(v,at)|0,n=n+Math.imul(d,ct)|0,i=(i=i+Math.imul(d,ut)|0)+Math.imul(y,ct)|0,o=o+Math.imul(y,ut)|0;var jt=(u+(n=n+Math.imul(l,lt)|0)|0)+((8191&(i=(i=i+Math.imul(l,ht)|0)+Math.imul(h,lt)|0))<<13)|0;u=((o=o+Math.imul(h,ht)|0)+(i>>>13)|0)+(jt>>>26)|0,jt&=67108863,n=Math.imul(L,q),i=(i=Math.imul(L,F))+Math.imul(C,q)|0,o=Math.imul(C,F),n=n+Math.imul(R,z)|0,i=(i=i+Math.imul(R,K)|0)+Math.imul(N,z)|0,o=o+Math.imul(N,K)|0,n=n+Math.imul(T,W)|0,i=(i=i+Math.imul(T,J)|0)+Math.imul(I,W)|0,o=o+Math.imul(I,J)|0,n=n+Math.imul(x,Y)|0,i=(i=i+Math.imul(x,Q)|0)+Math.imul(k,Y)|0,o=o+Math.imul(k,Q)|0,n=n+Math.imul(E,Z)|0,i=(i=i+Math.imul(E,tt)|0)+Math.imul(A,Z)|0,o=o+Math.imul(A,tt)|0,n=n+Math.imul(O,rt)|0,i=(i=i+Math.imul(O,nt)|0)+Math.imul(j,rt)|0,o=o+Math.imul(j,nt)|0,n=n+Math.imul(_,ot)|0,i=(i=i+Math.imul(_,at)|0)+Math.imul(w,ot)|0,o=o+Math.imul(w,at)|0,n=n+Math.imul(m,ct)|0,i=(i=i+Math.imul(m,ut)|0)+Math.imul(v,ct)|0,o=o+Math.imul(v,ut)|0,n=n+Math.imul(d,lt)|0,i=(i=i+Math.imul(d,ht)|0)+Math.imul(y,lt)|0,o=o+Math.imul(y,ht)|0;var $t=(u+(n=n+Math.imul(l,dt)|0)|0)+((8191&(i=(i=i+Math.imul(l,yt)|0)+Math.imul(h,dt)|0))<<13)|0;u=((o=o+Math.imul(h,yt)|0)+(i>>>13)|0)+($t>>>26)|0,$t&=67108863,n=Math.imul(L,z),i=(i=Math.imul(L,K))+Math.imul(C,z)|0,o=Math.imul(C,K),n=n+Math.imul(R,W)|0,i=(i=i+Math.imul(R,J)|0)+Math.imul(N,W)|0,o=o+Math.imul(N,J)|0,n=n+Math.imul(T,Y)|0,i=(i=i+Math.imul(T,Q)|0)+Math.imul(I,Y)|0,o=o+Math.imul(I,Q)|0,n=n+Math.imul(x,Z)|0,i=(i=i+Math.imul(x,tt)|0)+Math.imul(k,Z)|0,o=o+Math.imul(k,tt)|0,n=n+Math.imul(E,rt)|0,i=(i=i+Math.imul(E,nt)|0)+Math.imul(A,rt)|0,o=o+Math.imul(A,nt)|0,n=n+Math.imul(O,ot)|0,i=(i=i+Math.imul(O,at)|0)+Math.imul(j,ot)|0,o=o+Math.imul(j,at)|0,n=n+Math.imul(_,ct)|0,i=(i=i+Math.imul(_,ut)|0)+Math.imul(w,ct)|0,o=o+Math.imul(w,ut)|0,n=n+Math.imul(m,lt)|0,i=(i=i+Math.imul(m,ht)|0)+Math.imul(v,lt)|0,o=o+Math.imul(v,ht)|0;var Et=(u+(n=n+Math.imul(d,dt)|0)|0)+((8191&(i=(i=i+Math.imul(d,yt)|0)+Math.imul(y,dt)|0))<<13)|0;u=((o=o+Math.imul(y,yt)|0)+(i>>>13)|0)+(Et>>>26)|0,Et&=67108863,n=Math.imul(L,W),i=(i=Math.imul(L,J))+Math.imul(C,W)|0,o=Math.imul(C,J),n=n+Math.imul(R,Y)|0,i=(i=i+Math.imul(R,Q)|0)+Math.imul(N,Y)|0,o=o+Math.imul(N,Q)|0,n=n+Math.imul(T,Z)|0,i=(i=i+Math.imul(T,tt)|0)+Math.imul(I,Z)|0,o=o+Math.imul(I,tt)|0,n=n+Math.imul(x,rt)|0,i=(i=i+Math.imul(x,nt)|0)+Math.imul(k,rt)|0,o=o+Math.imul(k,nt)|0,n=n+Math.imul(E,ot)|0,i=(i=i+Math.imul(E,at)|0)+Math.imul(A,ot)|0,o=o+Math.imul(A,at)|0,n=n+Math.imul(O,ct)|0,i=(i=i+Math.imul(O,ut)|0)+Math.imul(j,ct)|0,o=o+Math.imul(j,ut)|0,n=n+Math.imul(_,lt)|0,i=(i=i+Math.imul(_,ht)|0)+Math.imul(w,lt)|0,o=o+Math.imul(w,ht)|0;var At=(u+(n=n+Math.imul(m,dt)|0)|0)+((8191&(i=(i=i+Math.imul(m,yt)|0)+Math.imul(v,dt)|0))<<13)|0;u=((o=o+Math.imul(v,yt)|0)+(i>>>13)|0)+(At>>>26)|0,At&=67108863,n=Math.imul(L,Y),i=(i=Math.imul(L,Q))+Math.imul(C,Y)|0,o=Math.imul(C,Q),n=n+Math.imul(R,Z)|0,i=(i=i+Math.imul(R,tt)|0)+Math.imul(N,Z)|0,o=o+Math.imul(N,tt)|0,n=n+Math.imul(T,rt)|0,i=(i=i+Math.imul(T,nt)|0)+Math.imul(I,rt)|0,o=o+Math.imul(I,nt)|0,n=n+Math.imul(x,ot)|0,i=(i=i+Math.imul(x,at)|0)+Math.imul(k,ot)|0,o=o+Math.imul(k,at)|0,n=n+Math.imul(E,ct)|0,i=(i=i+Math.imul(E,ut)|0)+Math.imul(A,ct)|0,o=o+Math.imul(A,ut)|0,n=n+Math.imul(O,lt)|0,i=(i=i+Math.imul(O,ht)|0)+Math.imul(j,lt)|0,o=o+Math.imul(j,ht)|0;var Pt=(u+(n=n+Math.imul(_,dt)|0)|0)+((8191&(i=(i=i+Math.imul(_,yt)|0)+Math.imul(w,dt)|0))<<13)|0;u=((o=o+Math.imul(w,yt)|0)+(i>>>13)|0)+(Pt>>>26)|0,Pt&=67108863,n=Math.imul(L,Z),i=(i=Math.imul(L,tt))+Math.imul(C,Z)|0,o=Math.imul(C,tt),n=n+Math.imul(R,rt)|0,i=(i=i+Math.imul(R,nt)|0)+Math.imul(N,rt)|0,o=o+Math.imul(N,nt)|0,n=n+Math.imul(T,ot)|0,i=(i=i+Math.imul(T,at)|0)+Math.imul(I,ot)|0,o=o+Math.imul(I,at)|0,n=n+Math.imul(x,ct)|0,i=(i=i+Math.imul(x,ut)|0)+Math.imul(k,ct)|0,o=o+Math.imul(k,ut)|0,n=n+Math.imul(E,lt)|0,i=(i=i+Math.imul(E,ht)|0)+Math.imul(A,lt)|0,o=o+Math.imul(A,ht)|0;var xt=(u+(n=n+Math.imul(O,dt)|0)|0)+((8191&(i=(i=i+Math.imul(O,yt)|0)+Math.imul(j,dt)|0))<<13)|0;u=((o=o+Math.imul(j,yt)|0)+(i>>>13)|0)+(xt>>>26)|0,xt&=67108863,n=Math.imul(L,rt),i=(i=Math.imul(L,nt))+Math.imul(C,rt)|0,o=Math.imul(C,nt),n=n+Math.imul(R,ot)|0,i=(i=i+Math.imul(R,at)|0)+Math.imul(N,ot)|0,o=o+Math.imul(N,at)|0,n=n+Math.imul(T,ct)|0,i=(i=i+Math.imul(T,ut)|0)+Math.imul(I,ct)|0,o=o+Math.imul(I,ut)|0,n=n+Math.imul(x,lt)|0,i=(i=i+Math.imul(x,ht)|0)+Math.imul(k,lt)|0,o=o+Math.imul(k,ht)|0;var kt=(u+(n=n+Math.imul(E,dt)|0)|0)+((8191&(i=(i=i+Math.imul(E,yt)|0)+Math.imul(A,dt)|0))<<13)|0;u=((o=o+Math.imul(A,yt)|0)+(i>>>13)|0)+(kt>>>26)|0,kt&=67108863,n=Math.imul(L,ot),i=(i=Math.imul(L,at))+Math.imul(C,ot)|0,o=Math.imul(C,at),n=n+Math.imul(R,ct)|0,i=(i=i+Math.imul(R,ut)|0)+Math.imul(N,ct)|0,o=o+Math.imul(N,ut)|0,n=n+Math.imul(T,lt)|0,i=(i=i+Math.imul(T,ht)|0)+Math.imul(I,lt)|0,o=o+Math.imul(I,ht)|0;var Mt=(u+(n=n+Math.imul(x,dt)|0)|0)+((8191&(i=(i=i+Math.imul(x,yt)|0)+Math.imul(k,dt)|0))<<13)|0;u=((o=o+Math.imul(k,yt)|0)+(i>>>13)|0)+(Mt>>>26)|0,Mt&=67108863,n=Math.imul(L,ct),i=(i=Math.imul(L,ut))+Math.imul(C,ct)|0,o=Math.imul(C,ut),n=n+Math.imul(R,lt)|0,i=(i=i+Math.imul(R,ht)|0)+Math.imul(N,lt)|0,o=o+Math.imul(N,ht)|0;var Tt=(u+(n=n+Math.imul(T,dt)|0)|0)+((8191&(i=(i=i+Math.imul(T,yt)|0)+Math.imul(I,dt)|0))<<13)|0;u=((o=o+Math.imul(I,yt)|0)+(i>>>13)|0)+(Tt>>>26)|0,Tt&=67108863,n=Math.imul(L,lt),i=(i=Math.imul(L,ht))+Math.imul(C,lt)|0,o=Math.imul(C,ht);var It=(u+(n=n+Math.imul(R,dt)|0)|0)+((8191&(i=(i=i+Math.imul(R,yt)|0)+Math.imul(N,dt)|0))<<13)|0;u=((o=o+Math.imul(N,yt)|0)+(i>>>13)|0)+(It>>>26)|0,It&=67108863;var Bt=(u+(n=Math.imul(L,dt))|0)+((8191&(i=(i=Math.imul(L,yt))+Math.imul(C,dt)|0))<<13)|0;return u=((o=Math.imul(C,yt))+(i>>>13)|0)+(Bt>>>26)|0,Bt&=67108863,c[0]=bt,c[1]=mt,c[2]=vt,c[3]=gt,c[4]=_t,c[5]=wt,c[6]=St,c[7]=Ot,c[8]=jt,c[9]=$t,c[10]=Et,c[11]=At,c[12]=Pt,c[13]=xt,c[14]=kt,c[15]=Mt,c[16]=Tt,c[17]=It,c[18]=Bt,0!==u&&(c[19]=u,r.length++),r};function v(t,e,r){r.negative=e.negative^t.negative,r.length=t.length+e.length;for(var n=0,i=0,o=0;o<r.length-1;o++){var a=i;i=0;for(var s=67108863&n,c=Math.min(o,e.length-1),u=Math.max(0,o-t.length+1);u<=c;u++){var f=o-u,l=(0|t.words[f])*(0|e.words[u]),h=67108863&l;s=67108863&(h=h+s|0),i+=(a=(a=a+(l/67108864|0)|0)+(h>>>26)|0)>>>26,a&=67108863}r.words[o]=s,n=a,a=i}return 0!==n?r.words[o]=n:r.length--,r._strip()}function g(t,e,r){return v(t,e,r)}function _(t,e){this.x=t,this.y=e}Math.imul||(m=b),a.prototype.mulTo=function(t,e){var r=this.length+t.length;return 10===this.length&&10===t.length?m(this,t,e):r<63?b(this,t,e):r<1024?v(this,t,e):g(this,t,e)},_.prototype.makeRBT=function(t){for(var e=new Array(t),r=a.prototype._countBits(t)-1,n=0;n<t;n++)e[n]=this.revBin(n,r,t);return e},_.prototype.revBin=function(t,e,r){if(0===t||t===r-1)return t;for(var n=0,i=0;i<e;i++)n|=(1&t)<<e-i-1,t>>=1;return n},_.prototype.permute=function(t,e,r,n,i,o){for(var a=0;a<o;a++)n[a]=e[t[a]],i[a]=r[t[a]]},_.prototype.transform=function(t,e,r,n,i,o){this.permute(o,t,e,r,n,i);for(var a=1;a<i;a<<=1)for(var s=a<<1,c=Math.cos(2*Math.PI/s),u=Math.sin(2*Math.PI/s),f=0;f<i;f+=s)for(var l=c,h=u,p=0;p<a;p++){var d=r[f+p],y=n[f+p],b=r[f+p+a],m=n[f+p+a],v=l*b-h*m;m=l*m+h*b,b=v,r[f+p]=d+b,n[f+p]=y+m,r[f+p+a]=d-b,n[f+p+a]=y-m,p!==s&&(v=c*l-u*h,h=c*h+u*l,l=v)}},_.prototype.guessLen13b=function(t,e){var r=1|Math.max(e,t),n=1&r,i=0;for(r=r/2|0;r;r>>>=1)i++;return 1<<i+1+n},_.prototype.conjugate=function(t,e,r){if(!(r<=1))for(var n=0;n<r/2;n++){var i=t[n];t[n]=t[r-n-1],t[r-n-1]=i,i=e[n],e[n]=-e[r-n-1],e[r-n-1]=-i}},_.prototype.normalize13b=function(t,e){for(var r=0,n=0;n<e/2;n++){var i=8192*Math.round(t[2*n+1]/e)+Math.round(t[2*n]/e)+r;t[n]=67108863&i,r=i<67108864?0:i/67108864|0}return t},_.prototype.convert13b=function(t,e,r,n){for(var o=0,a=0;a<e;a++)o+=0|t[a],r[2*a]=8191&o,o>>>=13,r[2*a+1]=8191&o,o>>>=13;for(a=2*e;a<n;++a)r[a]=0;i(0===o),i(!(-8192&o))},_.prototype.stub=function(t){for(var e=new Array(t),r=0;r<t;r++)e[r]=0;return e},_.prototype.mulp=function(t,e,r){var n=2*this.guessLen13b(t.length,e.length),i=this.makeRBT(n),o=this.stub(n),a=new Array(n),s=new Array(n),c=new Array(n),u=new Array(n),f=new Array(n),l=new Array(n),h=r.words;h.length=n,this.convert13b(t.words,t.length,a,n),this.convert13b(e.words,e.length,u,n),this.transform(a,o,s,c,n,i),this.transform(u,o,f,l,n,i);for(var p=0;p<n;p++){var d=s[p]*f[p]-c[p]*l[p];c[p]=s[p]*l[p]+c[p]*f[p],s[p]=d}return this.conjugate(s,c,n),this.transform(s,c,h,o,n,i),this.conjugate(h,o,n),this.normalize13b(h,n),r.negative=t.negative^e.negative,r.length=t.length+e.length,r._strip()},a.prototype.mul=function(t){var e=new a(null);return e.words=new Array(this.length+t.length),this.mulTo(t,e)},a.prototype.mulf=function(t){var e=new a(null);return e.words=new Array(this.length+t.length),g(this,t,e)},a.prototype.imul=function(t){return this.clone().mulTo(t,this)},a.prototype.imuln=function(t){var e=t<0;e&&(t=-t),i("number"==typeof t),i(t<67108864);for(var r=0,n=0;n<this.length;n++){var o=(0|this.words[n])*t,a=(67108863&o)+(67108863&r);r>>=26,r+=o/67108864|0,r+=a>>>26,this.words[n]=67108863&a}return 0!==r&&(this.words[n]=r,this.length++),e?this.ineg():this},a.prototype.muln=function(t){return this.clone().imuln(t)},a.prototype.sqr=function(){return this.mul(this)},a.prototype.isqr=function(){return this.imul(this.clone())},a.prototype.pow=function(t){var e=function(t){for(var e=new Array(t.bitLength()),r=0;r<e.length;r++){var n=r/26|0,i=r%26;e[r]=t.words[n]>>>i&1}return e}(t);if(0===e.length)return new a(1);for(var r=this,n=0;n<e.length&&0===e[n];n++,r=r.sqr());if(++n<e.length)for(var i=r.sqr();n<e.length;n++,i=i.sqr())0!==e[n]&&(r=r.mul(i));return r},a.prototype.iushln=function(t){i("number"==typeof t&&t>=0);var e,r=t%26,n=(t-r)/26,o=67108863>>>26-r<<26-r;if(0!==r){var a=0;for(e=0;e<this.length;e++){var s=this.words[e]&o,c=(0|this.words[e])-s<<r;this.words[e]=c|a,a=s>>>26-r}a&&(this.words[e]=a,this.length++)}if(0!==n){for(e=this.length-1;e>=0;e--)this.words[e+n]=this.words[e];for(e=0;e<n;e++)this.words[e]=0;this.length+=n}return this._strip()},a.prototype.ishln=function(t){return i(0===this.negative),this.iushln(t)},a.prototype.iushrn=function(t,e,r){var n;i("number"==typeof t&&t>=0),n=e?(e-e%26)/26:0;var o=t%26,a=Math.min((t-o)/26,this.length),s=67108863^67108863>>>o<<o,c=r;if(n-=a,n=Math.max(0,n),c){for(var u=0;u<a;u++)c.words[u]=this.words[u];c.length=a}if(0===a);else if(this.length>a)for(this.length-=a,u=0;u<this.length;u++)this.words[u]=this.words[u+a];else this.words[0]=0,this.length=1;var f=0;for(u=this.length-1;u>=0&&(0!==f||u>=n);u--){var l=0|this.words[u];this.words[u]=f<<26-o|l>>>o,f=l&s}return c&&0!==f&&(c.words[c.length++]=f),0===this.length&&(this.words[0]=0,this.length=1),this._strip()},a.prototype.ishrn=function(t,e,r){return i(0===this.negative),this.iushrn(t,e,r)},a.prototype.shln=function(t){return this.clone().ishln(t)},a.prototype.ushln=function(t){return this.clone().iushln(t)},a.prototype.shrn=function(t){return this.clone().ishrn(t)},a.prototype.ushrn=function(t){return this.clone().iushrn(t)},a.prototype.testn=function(t){i("number"==typeof t&&t>=0);var e=t%26,r=(t-e)/26,n=1<<e;return!(this.length<=r||!(this.words[r]&n))},a.prototype.imaskn=function(t){i("number"==typeof t&&t>=0);var e=t%26,r=(t-e)/26;if(i(0===this.negative,"imaskn works only with positive numbers"),this.length<=r)return this;if(0!==e&&r++,this.length=Math.min(r,this.length),0!==e){var n=67108863^67108863>>>e<<e;this.words[this.length-1]&=n}return this._strip()},a.prototype.maskn=function(t){return this.clone().imaskn(t)},a.prototype.iaddn=function(t){return i("number"==typeof t),i(t<67108864),t<0?this.isubn(-t):0!==this.negative?1===this.length&&(0|this.words[0])<=t?(this.words[0]=t-(0|this.words[0]),this.negative=0,this):(this.negative=0,this.isubn(t),this.negative=1,this):this._iaddn(t)},a.prototype._iaddn=function(t){this.words[0]+=t;for(var e=0;e<this.length&&this.words[e]>=67108864;e++)this.words[e]-=67108864,e===this.length-1?this.words[e+1]=1:this.words[e+1]++;return this.length=Math.max(this.length,e+1),this},a.prototype.isubn=function(t){if(i("number"==typeof t),i(t<67108864),t<0)return this.iaddn(-t);if(0!==this.negative)return this.negative=0,this.iaddn(t),this.negative=1,this;if(this.words[0]-=t,1===this.length&&this.words[0]<0)this.words[0]=-this.words[0],this.negative=1;else for(var e=0;e<this.length&&this.words[e]<0;e++)this.words[e]+=67108864,this.words[e+1]-=1;return this._strip()},a.prototype.addn=function(t){return this.clone().iaddn(t)},a.prototype.subn=function(t){return this.clone().isubn(t)},a.prototype.iabs=function(){return this.negative=0,this},a.prototype.abs=function(){return this.clone().iabs()},a.prototype._ishlnsubmul=function(t,e,r){var n,o,a=t.length+r;this._expand(a);var s=0;for(n=0;n<t.length;n++){o=(0|this.words[n+r])+s;var c=(0|t.words[n])*e;s=((o-=67108863&c)>>26)-(c/67108864|0),this.words[n+r]=67108863&o}for(;n<this.length-r;n++)s=(o=(0|this.words[n+r])+s)>>26,this.words[n+r]=67108863&o;if(0===s)return this._strip();for(i(-1===s),s=0,n=0;n<this.length;n++)s=(o=-(0|this.words[n])+s)>>26,this.words[n]=67108863&o;return this.negative=1,this._strip()},a.prototype._wordDiv=function(t,e){var r=(this.length,t.length),n=this.clone(),i=t,o=0|i.words[i.length-1];0!=(r=26-this._countBits(o))&&(i=i.ushln(r),n.iushln(r),o=0|i.words[i.length-1]);var s,c=n.length-i.length;if("mod"!==e){(s=new a(null)).length=c+1,s.words=new Array(s.length);for(var u=0;u<s.length;u++)s.words[u]=0}var f=n.clone()._ishlnsubmul(i,1,c);0===f.negative&&(n=f,s&&(s.words[c]=1));for(var l=c-1;l>=0;l--){var h=67108864*(0|n.words[i.length+l])+(0|n.words[i.length+l-1]);for(h=Math.min(h/o|0,67108863),n._ishlnsubmul(i,h,l);0!==n.negative;)h--,n.negative=0,n._ishlnsubmul(i,1,l),n.isZero()||(n.negative^=1);s&&(s.words[l]=h)}return s&&s._strip(),n._strip(),"div"!==e&&0!==r&&n.iushrn(r),{div:s||null,mod:n}},a.prototype.divmod=function(t,e,r){return i(!t.isZero()),this.isZero()?{div:new a(0),mod:new a(0)}:0!==this.negative&&0===t.negative?(s=this.neg().divmod(t,e),"mod"!==e&&(n=s.div.neg()),"div"!==e&&(o=s.mod.neg(),r&&0!==o.negative&&o.iadd(t)),{div:n,mod:o}):0===this.negative&&0!==t.negative?(s=this.divmod(t.neg(),e),"mod"!==e&&(n=s.div.neg()),{div:n,mod:s.mod}):this.negative&t.negative?(s=this.neg().divmod(t.neg(),e),"div"!==e&&(o=s.mod.neg(),r&&0!==o.negative&&o.isub(t)),{div:s.div,mod:o}):t.length>this.length||this.cmp(t)<0?{div:new a(0),mod:this}:1===t.length?"div"===e?{div:this.divn(t.words[0]),mod:null}:"mod"===e?{div:null,mod:new a(this.modrn(t.words[0]))}:{div:this.divn(t.words[0]),mod:new a(this.modrn(t.words[0]))}:this._wordDiv(t,e);var n,o,s},a.prototype.div=function(t){return this.divmod(t,"div",!1).div},a.prototype.mod=function(t){return this.divmod(t,"mod",!1).mod},a.prototype.umod=function(t){return this.divmod(t,"mod",!0).mod},a.prototype.divRound=function(t){var e=this.divmod(t);if(e.mod.isZero())return e.div;var r=0!==e.div.negative?e.mod.isub(t):e.mod,n=t.ushrn(1),i=t.andln(1),o=r.cmp(n);return o<0||1===i&&0===o?e.div:0!==e.div.negative?e.div.isubn(1):e.div.iaddn(1)},a.prototype.modrn=function(t){var e=t<0;e&&(t=-t),i(t<=67108863);for(var r=(1<<26)%t,n=0,o=this.length-1;o>=0;o--)n=(r*n+(0|this.words[o]))%t;return e?-n:n},a.prototype.modn=function(t){return this.modrn(t)},a.prototype.idivn=function(t){var e=t<0;e&&(t=-t),i(t<=67108863);for(var r=0,n=this.length-1;n>=0;n--){var o=(0|this.words[n])+67108864*r;this.words[n]=o/t|0,r=o%t}return this._strip(),e?this.ineg():this},a.prototype.divn=function(t){return this.clone().idivn(t)},a.prototype.egcd=function(t){i(0===t.negative),i(!t.isZero());var e=this,r=t.clone();e=0!==e.negative?e.umod(t):e.clone();for(var n=new a(1),o=new a(0),s=new a(0),c=new a(1),u=0;e.isEven()&&r.isEven();)e.iushrn(1),r.iushrn(1),++u;for(var f=r.clone(),l=e.clone();!e.isZero();){for(var h=0,p=1;!(e.words[0]&p)&&h<26;++h,p<<=1);if(h>0)for(e.iushrn(h);h-- >0;)(n.isOdd()||o.isOdd())&&(n.iadd(f),o.isub(l)),n.iushrn(1),o.iushrn(1);for(var d=0,y=1;!(r.words[0]&y)&&d<26;++d,y<<=1);if(d>0)for(r.iushrn(d);d-- >0;)(s.isOdd()||c.isOdd())&&(s.iadd(f),c.isub(l)),s.iushrn(1),c.iushrn(1);e.cmp(r)>=0?(e.isub(r),n.isub(s),o.isub(c)):(r.isub(e),s.isub(n),c.isub(o))}return{a:s,b:c,gcd:r.iushln(u)}},a.prototype._invmp=function(t){i(0===t.negative),i(!t.isZero());var e=this,r=t.clone();e=0!==e.negative?e.umod(t):e.clone();for(var n,o=new a(1),s=new a(0),c=r.clone();e.cmpn(1)>0&&r.cmpn(1)>0;){for(var u=0,f=1;!(e.words[0]&f)&&u<26;++u,f<<=1);if(u>0)for(e.iushrn(u);u-- >0;)o.isOdd()&&o.iadd(c),o.iushrn(1);for(var l=0,h=1;!(r.words[0]&h)&&l<26;++l,h<<=1);if(l>0)for(r.iushrn(l);l-- >0;)s.isOdd()&&s.iadd(c),s.iushrn(1);e.cmp(r)>=0?(e.isub(r),o.isub(s)):(r.isub(e),s.isub(o))}return(n=0===e.cmpn(1)?o:s).cmpn(0)<0&&n.iadd(t),n},a.prototype.gcd=function(t){if(this.isZero())return t.abs();if(t.isZero())return this.abs();var e=this.clone(),r=t.clone();e.negative=0,r.negative=0;for(var n=0;e.isEven()&&r.isEven();n++)e.iushrn(1),r.iushrn(1);for(;;){for(;e.isEven();)e.iushrn(1);for(;r.isEven();)r.iushrn(1);var i=e.cmp(r);if(i<0){var o=e;e=r,r=o}else if(0===i||0===r.cmpn(1))break;e.isub(r)}return r.iushln(n)},a.prototype.invm=function(t){return this.egcd(t).a.umod(t)},a.prototype.isEven=function(){return!(1&this.words[0])},a.prototype.isOdd=function(){return!(1&~this.words[0])},a.prototype.andln=function(t){return 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i(this.red,"redSqr works only with red numbers"),this.red._verify1(this),this.red.sqr(this)},a.prototype.redISqr=function(){return i(this.red,"redISqr works only with red numbers"),this.red._verify1(this),this.red.isqr(this)},a.prototype.redSqrt=function(){return i(this.red,"redSqrt works only with red numbers"),this.red._verify1(this),this.red.sqrt(this)},a.prototype.redInvm=function(){return i(this.red,"redInvm works only with red numbers"),this.red._verify1(this),this.red.invm(this)},a.prototype.redNeg=function(){return i(this.red,"redNeg works only with red numbers"),this.red._verify1(this),this.red.neg(this)},a.prototype.redPow=function(t){return i(this.red&&!t.red,"redPow(normalNum)"),this.red._verify1(this),this.red.pow(this,t)};var w={k256:null,p224:null,p192:null,p25519:null};function S(t,e){this.name=t,this.p=new a(e,16),this.n=this.p.bitLength(),this.k=new a(1).iushln(this.n).isub(this.p),this.tmp=this._tmp()}function O(){S.call(this,"k256","ffffffff ffffffff ffffffff 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l=u>>f&1;i!==r[0]&&(i=this.sqr(i)),0!==l||0!==o?(o<<=1,o|=l,(4==++s||0===n&&0===f)&&(i=this.mul(i,r[o]),s=0,o=0)):s=0}c=26}return i},A.prototype.convertTo=function(t){var e=t.umod(this.m);return e===t?e.clone():e},A.prototype.convertFrom=function(t){var e=t.clone();return e.red=null,e},a.mont=function(t){return new P(t)},o(P,A),P.prototype.convertTo=function(t){return this.imod(t.ushln(this.shift))},P.prototype.convertFrom=function(t){var e=this.imod(t.mul(this.rinv));return e.red=null,e},P.prototype.imul=function(t,e){if(t.isZero()||e.isZero())return t.words[0]=0,t.length=1,t;var r=t.imul(e),n=r.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m),i=r.isub(n).iushrn(this.shift),o=i;return i.cmp(this.m)>=0?o=i.isub(this.m):i.cmpn(0)<0&&(o=i.iadd(this.m)),o._forceRed(this)},P.prototype.mul=function(t,e){if(t.isZero()||e.isZero())return new a(0)._forceRed(this);var 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l=n-f,h=i[l-(f%4?0:4)];u[f]=f<4||l<=4?h:c.INV_SUB_MIX[0][c.SBOX[h>>>24]]^c.INV_SUB_MIX[1][c.SBOX[h>>>16&255]]^c.INV_SUB_MIX[2][c.SBOX[h>>>8&255]]^c.INV_SUB_MIX[3][c.SBOX[255&h]]}this._nRounds=r,this._keySchedule=i,this._invKeySchedule=u},u.prototype.encryptBlockRaw=function(t){return a(t=i(t),this._keySchedule,c.SUB_MIX,c.SBOX,this._nRounds)},u.prototype.encryptBlock=function(t){var e=this.encryptBlockRaw(t),r=n.allocUnsafe(16);return r.writeUInt32BE(e[0],0),r.writeUInt32BE(e[1],4),r.writeUInt32BE(e[2],8),r.writeUInt32BE(e[3],12),r},u.prototype.decryptBlock=function(t){var e=(t=i(t))[1];t[1]=t[3],t[3]=e;var r=a(t,this._invKeySchedule,c.INV_SUB_MIX,c.INV_SBOX,this._nRounds),o=n.allocUnsafe(16);return o.writeUInt32BE(r[0],0),o.writeUInt32BE(r[3],4),o.writeUInt32BE(r[2],8),o.writeUInt32BE(r[1],12),o},u.prototype.scrub=function(){o(this._keySchedule),o(this._invKeySchedule),o(this._key)},t.exports.AES=u},1085:(t,e,r)=>{var n=r(5401),i=r(9732).Buffer,o=r(2533),a=r(1679),s=r(9363),c=r(6876),u=r(9003);function f(t,e,r,a){o.call(this);var c=i.alloc(4,0);this._cipher=new n.AES(e);var f=this._cipher.encryptBlock(c);this._ghash=new s(f),r=function(t,e,r){if(12===e.length)return t._finID=i.concat([e,i.from([0,0,0,1])]),i.concat([e,i.from([0,0,0,2])]);var n=new s(r),o=e.length,a=o%16;n.update(e),a&&(a=16-a,n.update(i.alloc(a,0))),n.update(i.alloc(8,0));var c=8*o,f=i.alloc(8);f.writeUIntBE(c,0,8),n.update(f),t._finID=n.state;var l=i.from(t._finID);return u(l),l}(this,r,f),this._prev=i.from(r),this._cache=i.allocUnsafe(0),this._secCache=i.allocUnsafe(0),this._decrypt=a,this._alen=0,this._len=0,this._mode=t,this._authTag=null,this._called=!1}a(f,o),f.prototype._update=function(t){if(!this._called&&this._alen){var e=16-this._alen%16;e<16&&(e=i.alloc(e,0),this._ghash.update(e))}this._called=!0;var r=this._mode.encrypt(this,t);return this._decrypt?this._ghash.update(t):this._ghash.update(r),this._len+=t.length,r},f.prototype._final=function(){if(this._decrypt&&!this._authTag)throw new Error("Unsupported state or unable to authenticate data");var t=c(this._ghash.final(8*this._alen,8*this._len),this._cipher.encryptBlock(this._finID));if(this._decrypt&&function(t,e){var r=0;t.length!==e.length&&r++;for(var n=Math.min(t.length,e.length),i=0;i<n;++i)r+=t[i]^e[i];return r}(t,this._authTag))throw new Error("Unsupported state or unable to authenticate data");this._authTag=t,this._cipher.scrub()},f.prototype.getAuthTag=function(){if(this._decrypt||!i.isBuffer(this._authTag))throw new Error("Attempting to get auth tag in unsupported state");return this._authTag},f.prototype.setAuthTag=function(t){if(!this._decrypt)throw new Error("Attempting to set auth tag in unsupported state");this._authTag=t},f.prototype.setAAD=function(t){if(this._called)throw new Error("Attempting to set AAD in unsupported state");this._ghash.update(t),this._alen+=t.length},t.exports=f},2098:(t,e,r)=>{var n=r(3604),i=r(1808),o=r(3219);e.createCipher=e.Cipher=n.createCipher,e.createCipheriv=e.Cipheriv=n.createCipheriv,e.createDecipher=e.Decipher=i.createDecipher,e.createDecipheriv=e.Decipheriv=i.createDecipheriv,e.listCiphers=e.getCiphers=function(){return Object.keys(o)}},1808:(t,e,r)=>{var n=r(1085),i=r(9732).Buffer,o=r(8629),a=r(5407),s=r(2533),c=r(5401),u=r(1685);function f(t,e,r){s.call(this),this._cache=new l,this._last=void 0,this._cipher=new c.AES(e),this._prev=i.from(r),this._mode=t,this._autopadding=!0}function l(){this.cache=i.allocUnsafe(0)}function h(t,e,r){var s=o[t.toLowerCase()];if(!s)throw new TypeError("invalid suite type");if("string"==typeof r&&(r=i.from(r)),"GCM"!==s.mode&&r.length!==s.iv)throw new TypeError("invalid iv length "+r.length);if("string"==typeof e&&(e=i.from(e)),e.length!==s.key/8)throw new TypeError("invalid key length "+e.length);return"stream"===s.type?new a(s.module,e,r,!0):"auth"===s.type?new n(s.module,e,r,!0):new f(s.module,e,r)}r(1679)(f,s),f.prototype._update=function(t){var e,r;this._cache.add(t);for(var n=[];e=this._cache.get(this._autopadding);)r=this._mode.decrypt(this,e),n.push(r);return i.concat(n)},f.prototype._final=function(){var t=this._cache.flush();if(this._autopadding)return function(t){var e=t[15];if(e<1||e>16)throw new Error("unable to decrypt data");for(var r=-1;++r<e;)if(t[r+(16-e)]!==e)throw new Error("unable to decrypt data");if(16!==e)return t.slice(0,16-e)}(this._mode.decrypt(this,t));if(t)throw new Error("data not multiple of block length")},f.prototype.setAutoPadding=function(t){return this._autopadding=!!t,this},l.prototype.add=function(t){this.cache=i.concat([this.cache,t])},l.prototype.get=function(t){var e;if(t){if(this.cache.length>16)return e=this.cache.slice(0,16),this.cache=this.cache.slice(16),e}else if(this.cache.length>=16)return e=this.cache.slice(0,16),this.cache=this.cache.slice(16),e;return null},l.prototype.flush=function(){if(this.cache.length)return this.cache},e.createDecipher=function(t,e){var r=o[t.toLowerCase()];if(!r)throw new TypeError("invalid suite type");var n=u(e,!1,r.key,r.iv);return h(t,n.key,n.iv)},e.createDecipheriv=h},3604:(t,e,r)=>{var n=r(8629),i=r(1085),o=r(9732).Buffer,a=r(5407),s=r(2533),c=r(5401),u=r(1685);function f(t,e,r){s.call(this),this._cache=new h,this._cipher=new c.AES(e),this._prev=o.from(r),this._mode=t,this._autopadding=!0}r(1679)(f,s),f.prototype._update=function(t){var e,r;this._cache.add(t);for(var n=[];e=this._cache.get();)r=this._mode.encrypt(this,e),n.push(r);return o.concat(n)};var l=o.alloc(16,16);function h(){this.cache=o.allocUnsafe(0)}function p(t,e,r){var s=n[t.toLowerCase()];if(!s)throw new TypeError("invalid suite type");if("string"==typeof e&&(e=o.from(e)),e.length!==s.key/8)throw new TypeError("invalid key length "+e.length);if("string"==typeof r&&(r=o.from(r)),"GCM"!==s.mode&&r.length!==s.iv)throw new TypeError("invalid iv length "+r.length);return"stream"===s.type?new a(s.module,e,r):"auth"===s.type?new i(s.module,e,r):new f(s.module,e,r)}f.prototype._final=function(){var t=this._cache.flush();if(this._autopadding)return t=this._mode.encrypt(this,t),this._cipher.scrub(),t;if(!t.equals(l))throw this._cipher.scrub(),new Error("data not multiple of block length")},f.prototype.setAutoPadding=function(t){return this._autopadding=!!t,this},h.prototype.add=function(t){this.cache=o.concat([this.cache,t])},h.prototype.get=function(){if(this.cache.length>15){var t=this.cache.slice(0,16);return this.cache=this.cache.slice(16),t}return null},h.prototype.flush=function(){for(var t=16-this.cache.length,e=o.allocUnsafe(t),r=-1;++r<t;)e.writeUInt8(t,r);return o.concat([this.cache,e])},e.createCipheriv=p,e.createCipher=function(t,e){var r=n[t.toLowerCase()];if(!r)throw new TypeError("invalid suite type");var i=u(e,!1,r.key,r.iv);return p(t,i.key,i.iv)}},9363:(t,e,r)=>{var n=r(9732).Buffer,i=n.alloc(16,0);function o(t){var e=n.allocUnsafe(16);return e.writeUInt32BE(t[0]>>>0,0),e.writeUInt32BE(t[1]>>>0,4),e.writeUInt32BE(t[2]>>>0,8),e.writeUInt32BE(t[3]>>>0,12),e}function a(t){this.h=t,this.state=n.alloc(16,0),this.cache=n.allocUnsafe(0)}a.prototype.ghash=function(t){for(var e=-1;++e<t.length;)this.state[e]^=t[e];this._multiply()},a.prototype._multiply=function(){for(var t,e,r,n=[(t=this.h).readUInt32BE(0),t.readUInt32BE(4),t.readUInt32BE(8),t.readUInt32BE(12)],i=[0,0,0,0],a=-1;++a<128;){for(!!(this.state[~~(a/8)]&1<<7-a%8)&&(i[0]^=n[0],i[1]^=n[1],i[2]^=n[2],i[3]^=n[3]),r=!!(1&n[3]),e=3;e>0;e--)n[e]=n[e]>>>1|(1&n[e-1])<<31;n[0]=n[0]>>>1,r&&(n[0]=n[0]^225<<24)}this.state=o(i)},a.prototype.update=function(t){var e;for(this.cache=n.concat([this.cache,t]);this.cache.length>=16;)e=this.cache.slice(0,16),this.cache=this.cache.slice(16),this.ghash(e)},a.prototype.final=function(t,e){return this.cache.length&&this.ghash(n.concat([this.cache,i],16)),this.ghash(o([0,t,0,e])),this.state},t.exports=a},9003:t=>{t.exports=function(t){for(var e,r=t.length;r--;){if(255!==(e=t.readUInt8(r))){e++,t.writeUInt8(e,r);break}t.writeUInt8(0,r)}}},5459:(t,e,r)=>{var n=r(6876);e.encrypt=function(t,e){var r=n(e,t._prev);return t._prev=t._cipher.encryptBlock(r),t._prev},e.decrypt=function(t,e){var r=t._prev;t._prev=e;var i=t._cipher.decryptBlock(e);return n(i,r)}},4488:(t,e,r)=>{var n=r(9732).Buffer,i=r(6876);function o(t,e,r){var o=e.length,a=i(e,t._cache);return t._cache=t._cache.slice(o),t._prev=n.concat([t._prev,r?e:a]),a}e.encrypt=function(t,e,r){for(var i,a=n.allocUnsafe(0);e.length;){if(0===t._cache.length&&(t._cache=t._cipher.encryptBlock(t._prev),t._prev=n.allocUnsafe(0)),!(t._cache.length<=e.length)){a=n.concat([a,o(t,e,r)]);break}i=t._cache.length,a=n.concat([a,o(t,e.slice(0,i),r)]),e=e.slice(i)}return a}},4937:(t,e,r)=>{var n=r(9732).Buffer;function i(t,e,r){for(var n,i,a=-1,s=0;++a<8;)n=e&1<<7-a?128:0,s+=(128&(i=t._cipher.encryptBlock(t._prev)[0]^n))>>a%8,t._prev=o(t._prev,r?n:i);return s}function o(t,e){var r=t.length,i=-1,o=n.allocUnsafe(t.length);for(t=n.concat([t,n.from([e])]);++i<r;)o[i]=t[i]<<1|t[i+1]>>7;return o}e.encrypt=function(t,e,r){for(var o=e.length,a=n.allocUnsafe(o),s=-1;++s<o;)a[s]=i(t,e[s],r);return a}},6322:(t,e,r)=>{var n=r(9732).Buffer;function i(t,e,r){var i=t._cipher.encryptBlock(t._prev)[0]^e;return t._prev=n.concat([t._prev.slice(1),n.from([r?e:i])]),i}e.encrypt=function(t,e,r){for(var o=e.length,a=n.allocUnsafe(o),s=-1;++s<o;)a[s]=i(t,e[s],r);return a}},2538:(t,e,r)=>{var n=r(6876),i=r(9732).Buffer,o=r(9003);function a(t){var e=t._cipher.encryptBlockRaw(t._prev);return o(t._prev),e}e.encrypt=function(t,e){var r=Math.ceil(e.length/16),o=t._cache.length;t._cache=i.concat([t._cache,i.allocUnsafe(16*r)]);for(var s=0;s<r;s++){var c=a(t),u=o+16*s;t._cache.writeUInt32BE(c[0],u+0),t._cache.writeUInt32BE(c[1],u+4),t._cache.writeUInt32BE(c[2],u+8),t._cache.writeUInt32BE(c[3],u+12)}var f=t._cache.slice(0,e.length);return t._cache=t._cache.slice(e.length),n(e,f)}},9907:(t,e)=>{e.encrypt=function(t,e){return t._cipher.encryptBlock(e)},e.decrypt=function(t,e){return t._cipher.decryptBlock(e)}},8629:(t,e,r)=>{var n={ECB:r(9907),CBC:r(5459),CFB:r(4488),CFB8:r(6322),CFB1:r(4937),OFB:r(4252),CTR:r(2538),GCM:r(2538)},i=r(3219);for(var o in i)i[o].module=n[i[o].mode];t.exports=i},4252:(t,e,r)=>{var n=r(5832).Buffer,i=r(6876);function o(t){return t._prev=t._cipher.encryptBlock(t._prev),t._prev}e.encrypt=function(t,e){for(;t._cache.length<e.length;)t._cache=n.concat([t._cache,o(t)]);var r=t._cache.slice(0,e.length);return t._cache=t._cache.slice(e.length),i(e,r)}},5407:(t,e,r)=>{var n=r(5401),i=r(9732).Buffer,o=r(2533);function a(t,e,r,a){o.call(this),this._cipher=new n.AES(e),this._prev=i.from(r),this._cache=i.allocUnsafe(0),this._secCache=i.allocUnsafe(0),this._decrypt=a,this._mode=t}r(1679)(a,o),a.prototype._update=function(t){return this._mode.encrypt(this,t,this._decrypt)},a.prototype._final=function(){this._cipher.scrub()},t.exports=a},9652:(t,e,r)=>{var n=r(8201),i=r(2098),o=r(8629),a=r(3849),s=r(1685);function c(t,e,r){if(t=t.toLowerCase(),o[t])return i.createCipheriv(t,e,r);if(a[t])return new n({key:e,iv:r,mode:t});throw new TypeError("invalid suite type")}function u(t,e,r){if(t=t.toLowerCase(),o[t])return i.createDecipheriv(t,e,r);if(a[t])return new n({key:e,iv:r,mode:t,decrypt:!0});throw new TypeError("invalid suite type")}e.createCipher=e.Cipher=function(t,e){var r,n;if(t=t.toLowerCase(),o[t])r=o[t].key,n=o[t].iv;else{if(!a[t])throw new TypeError("invalid suite type");r=8*a[t].key,n=a[t].iv}var i=s(e,!1,r,n);return c(t,i.key,i.iv)},e.createCipheriv=e.Cipheriv=c,e.createDecipher=e.Decipher=function(t,e){var r,n;if(t=t.toLowerCase(),o[t])r=o[t].key,n=o[t].iv;else{if(!a[t])throw new TypeError("invalid suite type");r=8*a[t].key,n=a[t].iv}var i=s(e,!1,r,n);return u(t,i.key,i.iv)},e.createDecipheriv=e.Decipheriv=u,e.listCiphers=e.getCiphers=function(){return Object.keys(a).concat(i.getCiphers())}},8201:(t,e,r)=>{var n=r(2533),i=r(1471),o=r(1679),a=r(9732).Buffer,s={"des-ede3-cbc":i.CBC.instantiate(i.EDE),"des-ede3":i.EDE,"des-ede-cbc":i.CBC.instantiate(i.EDE),"des-ede":i.EDE,"des-cbc":i.CBC.instantiate(i.DES),"des-ecb":i.DES};function c(t){n.call(this);var e,r=t.mode.toLowerCase(),i=s[r];e=t.decrypt?"decrypt":"encrypt";var o=t.key;a.isBuffer(o)||(o=a.from(o)),"des-ede"!==r&&"des-ede-cbc"!==r||(o=a.concat([o,o.slice(0,8)]));var c=t.iv;a.isBuffer(c)||(c=a.from(c)),this._des=i.create({key:o,iv:c,type:e})}s.des=s["des-cbc"],s.des3=s["des-ede3-cbc"],t.exports=c,o(c,n),c.prototype._update=function(t){return a.from(this._des.update(t))},c.prototype._final=function(){return a.from(this._des.final())}},3849:(t,e)=>{e["des-ecb"]={key:8,iv:0},e["des-cbc"]=e.des={key:8,iv:8},e["des-ede3-cbc"]=e.des3={key:24,iv:8},e["des-ede3"]={key:24,iv:0},e["des-ede-cbc"]={key:16,iv:8},e["des-ede"]={key:16,iv:0}},1095:(t,e,r)=>{"use strict";var n=r(7799),i=r(4276),o=r(9732).Buffer;function a(t){var e,r=t.modulus.byteLength();do{e=new n(i(r))}while(e.cmp(t.modulus)>=0||!e.umod(t.prime1)||!e.umod(t.prime2));return e}function s(t,e){var r=function(t){var e=a(t);return{blinder:e.toRed(n.mont(t.modulus)).redPow(new n(t.publicExponent)).fromRed(),unblinder:e.invm(t.modulus)}}(e),i=e.modulus.byteLength(),s=new n(t).mul(r.blinder).umod(e.modulus),c=s.toRed(n.mont(e.prime1)),u=s.toRed(n.mont(e.prime2)),f=e.coefficient,l=e.prime1,h=e.prime2,p=c.redPow(e.exponent1).fromRed(),d=u.redPow(e.exponent2).fromRed(),y=p.isub(d).imul(f).umod(l).imul(h);return d.iadd(y).imul(r.unblinder).umod(e.modulus).toArrayLike(o,"be",i)}s.getr=a,t.exports=s},4606:(t,e,r)=>{"use 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n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},n(t)}var i=r(988),o=r(2288),a=r(2268),s=r(1464);t.exports=function(t,e,r){if(!t||"object"!==n(t)&&"function"!=typeof t)throw new a("`obj` must be an object or a function`");if("string"!=typeof e&&"symbol"!==n(e))throw new a("`property` must be a string or a symbol`");if(arguments.length>3&&"boolean"!=typeof arguments[3]&&null!==arguments[3])throw new a("`nonEnumerable`, if provided, must be a boolean or null");if(arguments.length>4&&"boolean"!=typeof arguments[4]&&null!==arguments[4])throw new a("`nonWritable`, if provided, must be a boolean or null");if(arguments.length>5&&"boolean"!=typeof arguments[5]&&null!==arguments[5])throw new a("`nonConfigurable`, if provided, must be a boolean or null");if(arguments.length>6&&"boolean"!=typeof arguments[6])throw new a("`loose`, if provided, 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s=0;s<this.blockSize;s++)a[s]^=t[e+s];for(o._update.call(this,a,0,r,n),s=0;s<this.blockSize;s++)a[s]=r[n+s]}else{for(o._update.call(this,t,e,r,n),s=0;s<this.blockSize;s++)r[n+s]^=a[s];for(s=0;s<this.blockSize;s++)a[s]=t[e+s]}}},365:(t,e,r)=>{"use strict";var n=r(3528);function i(t){this.options=t,this.type=this.options.type,this.blockSize=8,this._init(),this.buffer=new Array(this.blockSize),this.bufferOff=0,this.padding=!1!==t.padding}t.exports=i,i.prototype._init=function(){},i.prototype.update=function(t){return 0===t.length?[]:"decrypt"===this.type?this._updateDecrypt(t):this._updateEncrypt(t)},i.prototype._buffer=function(t,e){for(var r=Math.min(this.buffer.length-this.bufferOff,t.length-e),n=0;n<r;n++)this.buffer[this.bufferOff+n]=t[e+n];return this.bufferOff+=r,r},i.prototype._flushBuffer=function(t,e){return this._update(this.buffer,0,t,e),this.bufferOff=0,this.blockSize},i.prototype._updateEncrypt=function(t){var e=0,r=0,n=(this.bufferOff+t.length)/this.blockSize|0,i=new Array(n*this.blockSize);0!==this.bufferOff&&(e+=this._buffer(t,e),this.bufferOff===this.buffer.length&&(r+=this._flushBuffer(i,r)));for(var o=t.length-(t.length-e)%this.blockSize;e<o;e+=this.blockSize)this._update(t,e,i,r),r+=this.blockSize;for(;e<t.length;e++,this.bufferOff++)this.buffer[this.bufferOff]=t[e];return i},i.prototype._updateDecrypt=function(t){for(var e=0,r=0,n=Math.ceil((this.bufferOff+t.length)/this.blockSize)-1,i=new Array(n*this.blockSize);n>0;n--)e+=this._buffer(t,e),r+=this._flushBuffer(i,r);return e+=this._buffer(t,e),i},i.prototype.final=function(t){var e,r;return t&&(e=this.update(t)),r="encrypt"===this.type?this._finalEncrypt():this._finalDecrypt(),e?e.concat(r):r},i.prototype._pad=function(t,e){if(0===e)return!1;for(;e<t.length;)t[e++]=0;return!0},i.prototype._finalEncrypt=function(){if(!this._pad(this.buffer,this.bufferOff))return[];var t=new Array(this.blockSize);return this._update(this.buffer,0,t,0),t},i.prototype._unpad=function(t){return t},i.prototype._finalDecrypt=function(){n.equal(this.bufferOff,this.blockSize,"Not enough data to decrypt");var t=new Array(this.blockSize);return this._flushBuffer(t,0),this._unpad(t)}},1048:(t,e,r)=>{"use strict";var n=r(3528),i=r(1679),o=r(9473),a=r(365);function s(){this.tmp=new Array(2),this.keys=null}function c(t){a.call(this,t);var e=new s;this._desState=e,this.deriveKeys(e,t.key)}i(c,a),t.exports=c,c.create=function(t){return new c(t)};var u=[1,1,2,2,2,2,2,2,1,2,2,2,2,2,2,1];c.prototype.deriveKeys=function(t,e){t.keys=new Array(32),n.equal(e.length,this.blockSize,"Invalid key length");var r=o.readUInt32BE(e,0),i=o.readUInt32BE(e,4);o.pc1(r,i,t.tmp,0),r=t.tmp[0],i=t.tmp[1];for(var a=0;a<t.keys.length;a+=2){var s=u[a>>>1];r=o.r28shl(r,s),i=o.r28shl(i,s),o.pc2(r,i,t.keys,a)}},c.prototype._update=function(t,e,r,n){var i=this._desState,a=o.readUInt32BE(t,e),s=o.readUInt32BE(t,e+4);o.ip(a,s,i.tmp,0),a=i.tmp[0],s=i.tmp[1],"encrypt"===this.type?this._encrypt(i,a,s,i.tmp,0):this._decrypt(i,a,s,i.tmp,0),a=i.tmp[0],s=i.tmp[1],o.writeUInt32BE(r,a,n),o.writeUInt32BE(r,s,n+4)},c.prototype._pad=function(t,e){if(!1===this.padding)return!1;for(var r=t.length-e,n=e;n<t.length;n++)t[n]=r;return!0},c.prototype._unpad=function(t){if(!1===this.padding)return t;for(var e=t[t.length-1],r=t.length-e;r<t.length;r++)n.equal(t[r],e);return t.slice(0,t.length-e)},c.prototype._encrypt=function(t,e,r,n,i){for(var a=e,s=r,c=0;c<t.keys.length;c+=2){var u=t.keys[c],f=t.keys[c+1];o.expand(s,t.tmp,0),u^=t.tmp[0],f^=t.tmp[1];var l=o.substitute(u,f),h=s;s=(a^o.permute(l))>>>0,a=h}o.rip(s,a,n,i)},c.prototype._decrypt=function(t,e,r,n,i){for(var a=r,s=e,c=t.keys.length-2;c>=0;c-=2){var u=t.keys[c],f=t.keys[c+1];o.expand(a,t.tmp,0),u^=t.tmp[0],f^=t.tmp[1];var l=o.substitute(u,f),h=a;a=(s^o.permute(l))>>>0,s=h}o.rip(a,s,n,i)}},1368:(t,e,r)=>{"use strict";var n=r(3528),i=r(1679),o=r(365),a=r(1048);function s(t,e){n.equal(e.length,24,"Invalid key length");var r=e.slice(0,8),i=e.slice(8,16),o=e.slice(16,24);this.ciphers="encrypt"===t?[a.create({type:"encrypt",key:r}),a.create({type:"decrypt",key:i}),a.create({type:"encrypt",key:o})]:[a.create({type:"decrypt",key:o}),a.create({type:"encrypt",key:i}),a.create({type:"decrypt",key:r})]}function c(t){o.call(this,t);var e=new s(this.type,this.options.key);this._edeState=e}i(c,o),t.exports=c,c.create=function(t){return new c(t)},c.prototype._update=function(t,e,r,n){var i=this._edeState;i.ciphers[0]._update(t,e,r,n),i.ciphers[1]._update(r,n,r,n),i.ciphers[2]._update(r,n,r,n)},c.prototype._pad=a.prototype._pad,c.prototype._unpad=a.prototype._unpad},9473:(t,e)=>{"use strict";e.readUInt32BE=function(t,e){return(t[0+e]<<24|t[1+e]<<16|t[2+e]<<8|t[3+e])>>>0},e.writeUInt32BE=function(t,e,r){t[0+r]=e>>>24,t[1+r]=e>>>16&255,t[2+r]=e>>>8&255,t[3+r]=255&e},e.ip=function(t,e,r,n){for(var i=0,o=0,a=6;a>=0;a-=2){for(var s=0;s<=24;s+=8)i<<=1,i|=e>>>s+a&1;for(s=0;s<=24;s+=8)i<<=1,i|=t>>>s+a&1}for(a=6;a>=0;a-=2){for(s=1;s<=25;s+=8)o<<=1,o|=e>>>s+a&1;for(s=1;s<=25;s+=8)o<<=1,o|=t>>>s+a&1}r[n+0]=i>>>0,r[n+1]=o>>>0},e.rip=function(t,e,r,n){for(var i=0,o=0,a=0;a<4;a++)for(var s=24;s>=0;s-=8)i<<=1,i|=e>>>s+a&1,i<<=1,i|=t>>>s+a&1;for(a=4;a<8;a++)for(s=24;s>=0;s-=8)o<<=1,o|=e>>>s+a&1,o<<=1,o|=t>>>s+a&1;r[n+0]=i>>>0,r[n+1]=o>>>0},e.pc1=function(t,e,r,n){for(var i=0,o=0,a=7;a>=5;a--){for(var s=0;s<=24;s+=8)i<<=1,i|=e>>s+a&1;for(s=0;s<=24;s+=8)i<<=1,i|=t>>s+a&1}for(s=0;s<=24;s+=8)i<<=1,i|=e>>s+a&1;for(a=1;a<=3;a++){for(s=0;s<=24;s+=8)o<<=1,o|=e>>s+a&1;for(s=0;s<=24;s+=8)o<<=1,o|=t>>s+a&1}for(s=0;s<=24;s+=8)o<<=1,o|=t>>s+a&1;r[n+0]=i>>>0,r[n+1]=o>>>0},e.r28shl=function(t,e){return t<<e&268435455|t>>>28-e};var r=[14,11,17,4,27,23,25,0,13,22,7,18,5,9,16,24,2,20,12,21,1,8,15,26,15,4,25,19,9,1,26,16,5,11,23,8,12,7,17,0,22,3,10,14,6,20,27,24];e.pc2=function(t,e,n,i){for(var o=0,a=0,s=r.length>>>1,c=0;c<s;c++)o<<=1,o|=t>>>r[c]&1;for(c=s;c<r.length;c++)a<<=1,a|=e>>>r[c]&1;n[i+0]=o>>>0,n[i+1]=a>>>0},e.expand=function(t,e,r){var n=0,i=0;n=(1&t)<<5|t>>>27;for(var o=23;o>=15;o-=4)n<<=6,n|=t>>>o&63;for(o=11;o>=3;o-=4)i|=t>>>o&63,i<<=6;i|=(31&t)<<1|t>>>31,e[r+0]=n>>>0,e[r+1]=i>>>0};var n=[14,0,4,15,13,7,1,4,2,14,15,2,11,13,8,1,3,10,10,6,6,12,12,11,5,9,9,5,0,3,7,8,4,15,1,12,14,8,8,2,13,4,6,9,2,1,11,7,15,5,12,11,9,3,7,14,3,10,10,0,5,6,0,13,15,3,1,13,8,4,14,7,6,15,11,2,3,8,4,14,9,12,7,0,2,1,13,10,12,6,0,9,5,11,10,5,0,13,14,8,7,10,11,1,10,3,4,15,13,4,1,2,5,11,8,6,12,7,6,12,9,0,3,5,2,14,15,9,10,13,0,7,9,0,14,9,6,3,3,4,15,6,5,10,1,2,13,8,12,5,7,14,11,12,4,11,2,15,8,1,13,1,6,10,4,13,9,0,8,6,15,9,3,8,0,7,11,4,1,15,2,14,12,3,5,11,10,5,14,2,7,12,7,13,13,8,14,11,3,5,0,6,6,15,9,0,10,3,1,4,2,7,8,2,5,12,11,1,12,10,4,14,15,9,10,3,6,15,9,0,0,6,12,10,11,1,7,13,13,8,15,9,1,4,3,5,14,11,5,12,2,7,8,2,4,14,2,14,12,11,4,2,1,12,7,4,10,7,11,13,6,1,8,5,5,0,3,15,15,10,13,3,0,9,14,8,9,6,4,11,2,8,1,12,11,7,10,1,13,14,7,2,8,13,15,6,9,15,12,0,5,9,6,10,3,4,0,5,14,3,12,10,1,15,10,4,15,2,9,7,2,12,6,9,8,5,0,6,13,1,3,13,4,14,14,0,7,11,5,3,11,8,9,4,14,3,15,2,5,12,2,9,8,5,12,15,3,10,7,11,0,14,4,1,10,7,1,6,13,0,11,8,6,13,4,13,11,0,2,11,14,7,15,4,0,9,8,1,13,10,3,14,12,3,9,5,7,12,5,2,10,15,6,8,1,6,1,6,4,11,11,13,13,8,12,1,3,4,7,10,14,7,10,9,15,5,6,0,8,15,0,14,5,2,9,3,2,12,13,1,2,15,8,13,4,8,6,10,15,3,11,7,1,4,10,12,9,5,3,6,14,11,5,0,0,14,12,9,7,2,7,2,11,1,4,14,1,7,9,4,12,10,14,8,2,13,0,15,6,12,10,9,13,0,15,3,3,5,5,6,8,11];e.substitute=function(t,e){for(var r=0,i=0;i<4;i++)r<<=4,r|=n[64*i+(t>>>18-6*i&63)];for(i=0;i<4;i++)r<<=4,r|=n[256+64*i+(e>>>18-6*i&63)];return r>>>0};var i=[16,25,12,11,3,20,4,15,31,17,9,6,27,14,1,22,30,24,8,18,0,5,29,23,13,19,2,26,10,21,28,7];e.permute=function(t){for(var e=0,r=0;r<i.length;r++)e<<=1,e|=t>>>i[r]&1;return e>>>0},e.padSplit=function(t,e,r){for(var n=t.toString(2);n.length<e;)n="0"+n;for(var i=[],o=0;o<e;o+=r)i.push(n.slice(o,o+r));return i.join(" ")}},9803:(t,e,r)=>{var n=r(5832).Buffer,i=r(1673),o=r(3241),a=r(8151),s={binary:!0,hex:!0,base64:!0};e.DiffieHellmanGroup=e.createDiffieHellmanGroup=e.getDiffieHellman=function(t){var e=new n(o[t].prime,"hex"),r=new n(o[t].gen,"hex");return new a(e,r)},e.createDiffieHellman=e.DiffieHellman=function t(e,r,o,c){return n.isBuffer(r)||void 0===s[r]?t(e,"binary",r,o):(r=r||"binary",c=c||"binary",o=o||new n([2]),n.isBuffer(o)||(o=new n(o,c)),"number"==typeof e?new a(i(e,o),o,!0):(n.isBuffer(e)||(e=new n(e,r)),new a(e,o,!0)))}},8151:(t,e,r)=>{var n=r(5832).Buffer,i=r(7799),o=new(r(1257)),a=new i(24),s=new i(11),c=new i(10),u=new i(3),f=new i(7),l=r(1673),h=r(4276);function p(t,e){return e=e||"utf8",n.isBuffer(t)||(t=new n(t,e)),this._pub=new i(t),this}function d(t,e){return e=e||"utf8",n.isBuffer(t)||(t=new n(t,e)),this._priv=new i(t),this}t.exports=b;var y={};function b(t,e,r){this.setGenerator(e),this.__prime=new i(t),this._prime=i.mont(this.__prime),this._primeLen=t.length,this._pub=void 0,this._priv=void 0,this._primeCode=void 0,r?(this.setPublicKey=p,this.setPrivateKey=d):this._primeCode=8}function m(t,e){var r=new n(t.toArray());return e?r.toString(e):r}Object.defineProperty(b.prototype,"verifyError",{enumerable:!0,get:function(){return"number"!=typeof this._primeCode&&(this._primeCode=function(t,e){var r=e.toString("hex"),n=[r,t.toString(16)].join("_");if(n in y)return y[n];var i,h=0;if(t.isEven()||!l.simpleSieve||!l.fermatTest(t)||!o.test(t))return h+=1,h+="02"===r||"05"===r?8:4,y[n]=h,h;switch(o.test(t.shrn(1))||(h+=2),r){case"02":t.mod(a).cmp(s)&&(h+=8);break;case"05":(i=t.mod(c)).cmp(u)&&i.cmp(f)&&(h+=8);break;default:h+=4}return y[n]=h,h}(this.__prime,this.__gen)),this._primeCode}}),b.prototype.generateKeys=function(){return this._priv||(this._priv=new i(h(this._primeLen))),this._pub=this._gen.toRed(this._prime).redPow(this._priv).fromRed(),this.getPublicKey()},b.prototype.computeSecret=function(t){var e=(t=(t=new i(t)).toRed(this._prime)).redPow(this._priv).fromRed(),r=new n(e.toArray()),o=this.getPrime();if(r.length<o.length){var a=new n(o.length-r.length);a.fill(0),r=n.concat([a,r])}return r},b.prototype.getPublicKey=function(t){return m(this._pub,t)},b.prototype.getPrivateKey=function(t){return m(this._priv,t)},b.prototype.getPrime=function(t){return m(this.__prime,t)},b.prototype.getGenerator=function(t){return m(this._gen,t)},b.prototype.setGenerator=function(t,e){return e=e||"utf8",n.isBuffer(t)||(t=new n(t,e)),this.__gen=t,this._gen=new i(t),this}},1673:(t,e,r)=>{var n=r(4276);t.exports=v,v.simpleSieve=b,v.fermatTest=m;var i=r(7799),o=new i(24),a=new(r(1257)),s=new i(1),c=new i(2),u=new i(5),f=(new i(16),new i(8),new i(10)),l=new i(3),h=(new i(7),new i(11)),p=new i(4),d=(new i(12),null);function y(){if(null!==d)return d;var t=[];t[0]=2;for(var e=1,r=3;r<1048576;r+=2){for(var n=Math.ceil(Math.sqrt(r)),i=0;i<e&&t[i]<=n&&r%t[i]!=0;i++);e!==i&&t[i]<=n||(t[e++]=r)}return d=t,t}function b(t){for(var e=y(),r=0;r<e.length;r++)if(0===t.modn(e[r]))return 0===t.cmpn(e[r]);return!0}function m(t){var e=i.mont(t);return 0===c.toRed(e).redPow(t.subn(1)).fromRed().cmpn(1)}function v(t,e){if(t<16)return new i(2===e||5===e?[140,123]:[140,39]);var r,d;for(e=new i(e);;){for(r=new i(n(Math.ceil(t/8)));r.bitLength()>t;)r.ishrn(1);if(r.isEven()&&r.iadd(s),r.testn(1)||r.iadd(c),e.cmp(c)){if(!e.cmp(u))for(;r.mod(f).cmp(l);)r.iadd(p)}else for(;r.mod(o).cmp(h);)r.iadd(p);if(b(d=r.shrn(1))&&b(r)&&m(d)&&m(r)&&a.test(d)&&a.test(r))return r}}},8964:(t,e,r)=>{"use strict";function n(t){return n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},n(t)}var i,o=r(8863),a=r(1464);try{i=[].__proto__===Array.prototype}catch(t){if(!t||"object"!==n(t)||!("code"in t)||"ERR_PROTO_ACCESS"!==t.code)throw t}var s=!!i&&a&&a(Object.prototype,"__proto__"),c=Object,u=c.getPrototypeOf;t.exports=s&&"function"==typeof s.get?o([s.get]):"function"==typeof u&&function(t){return u(null==t?t:c(t))}},7312:(t,e,r)=>{"use strict";var n=e;n.version=r(1636).rE,n.utils=r(1970),n.rand=r(8904),n.curve=r(5803),n.curves=r(6379),n.ec=r(7416),n.eddsa=r(4919)},3334:(t,e,r)=>{"use strict";var n=r(7799),i=r(1970),o=i.getNAF,a=i.getJSF,s=i.assert;function c(t,e){this.type=t,this.p=new n(e.p,16),this.red=e.prime?n.red(e.prime):n.mont(this.p),this.zero=new n(0).toRed(this.red),this.one=new n(1).toRed(this.red),this.two=new n(2).toRed(this.red),this.n=e.n&&new n(e.n,16),this.g=e.g&&this.pointFromJSON(e.g,e.gRed),this._wnafT1=new Array(4),this._wnafT2=new Array(4),this._wnafT3=new Array(4),this._wnafT4=new Array(4),this._bitLength=this.n?this.n.bitLength():0;var r=this.n&&this.p.div(this.n);!r||r.cmpn(100)>0?this.redN=null:(this._maxwellTrick=!0,this.redN=this.n.toRed(this.red))}function u(t,e){this.curve=t,this.type=e,this.precomputed=null}t.exports=c,c.prototype.point=function(){throw new Error("Not implemented")},c.prototype.validate=function(){throw new Error("Not implemented")},c.prototype._fixedNafMul=function(t,e){s(t.precomputed);var r=t._getDoubles(),n=o(e,1,this._bitLength),i=(1<<r.step+1)-(r.step%2==0?2:1);i/=3;var a,c,u=[];for(a=0;a<n.length;a+=r.step){c=0;for(var f=a+r.step-1;f>=a;f--)c=(c<<1)+n[f];u.push(c)}for(var l=this.jpoint(null,null,null),h=this.jpoint(null,null,null),p=i;p>0;p--){for(a=0;a<u.length;a++)(c=u[a])===p?h=h.mixedAdd(r.points[a]):c===-p&&(h=h.mixedAdd(r.points[a].neg()));l=l.add(h)}return l.toP()},c.prototype._wnafMul=function(t,e){var r=4,n=t._getNAFPoints(r);r=n.wnd;for(var i=n.points,a=o(e,r,this._bitLength),c=this.jpoint(null,null,null),u=a.length-1;u>=0;u--){for(var f=0;u>=0&&0===a[u];u--)f++;if(u>=0&&f++,c=c.dblp(f),u<0)break;var l=a[u];s(0!==l),c="affine"===t.type?l>0?c.mixedAdd(i[l-1>>1]):c.mixedAdd(i[-l-1>>1].neg()):l>0?c.add(i[l-1>>1]):c.add(i[-l-1>>1].neg())}return"affine"===t.type?c.toP():c},c.prototype._wnafMulAdd=function(t,e,r,n,i){var s,c,u,f=this._wnafT1,l=this._wnafT2,h=this._wnafT3,p=0;for(s=0;s<n;s++){var d=(u=e[s])._getNAFPoints(t);f[s]=d.wnd,l[s]=d.points}for(s=n-1;s>=1;s-=2){var y=s-1,b=s;if(1===f[y]&&1===f[b]){var m=[e[y],null,null,e[b]];0===e[y].y.cmp(e[b].y)?(m[1]=e[y].add(e[b]),m[2]=e[y].toJ().mixedAdd(e[b].neg())):0===e[y].y.cmp(e[b].y.redNeg())?(m[1]=e[y].toJ().mixedAdd(e[b]),m[2]=e[y].add(e[b].neg())):(m[1]=e[y].toJ().mixedAdd(e[b]),m[2]=e[y].toJ().mixedAdd(e[b].neg()));var v=[-3,-1,-5,-7,0,7,5,1,3],g=a(r[y],r[b]);for(p=Math.max(g[0].length,p),h[y]=new Array(p),h[b]=new Array(p),c=0;c<p;c++){var _=0|g[0][c],w=0|g[1][c];h[y][c]=v[3*(_+1)+(w+1)],h[b][c]=0,l[y]=m}}else h[y]=o(r[y],f[y],this._bitLength),h[b]=o(r[b],f[b],this._bitLength),p=Math.max(h[y].length,p),p=Math.max(h[b].length,p)}var S=this.jpoint(null,null,null),O=this._wnafT4;for(s=p;s>=0;s--){for(var j=0;s>=0;){var $=!0;for(c=0;c<n;c++)O[c]=0|h[c][s],0!==O[c]&&($=!1);if(!$)break;j++,s--}if(s>=0&&j++,S=S.dblp(j),s<0)break;for(c=0;c<n;c++){var E=O[c];0!==E&&(E>0?u=l[c][E-1>>1]:E<0&&(u=l[c][-E-1>>1].neg()),S="affine"===u.type?S.mixedAdd(u):S.add(u))}}for(s=0;s<n;s++)l[s]=null;return i?S:S.toP()},c.BasePoint=u,u.prototype.eq=function(){throw new Error("Not implemented")},u.prototype.validate=function(){return this.curve.validate(this)},c.prototype.decodePoint=function(t,e){t=i.toArray(t,e);var r=this.p.byteLength();if((4===t[0]||6===t[0]||7===t[0])&&t.length-1==2*r)return 6===t[0]?s(t[t.length-1]%2==0):7===t[0]&&s(t[t.length-1]%2==1),this.point(t.slice(1,1+r),t.slice(1+r,1+2*r));if((2===t[0]||3===t[0])&&t.length-1===r)return this.pointFromX(t.slice(1,1+r),3===t[0]);throw new Error("Unknown point format")},u.prototype.encodeCompressed=function(t){return this.encode(t,!0)},u.prototype._encode=function(t){var e=this.curve.p.byteLength(),r=this.getX().toArray("be",e);return t?[this.getY().isEven()?2:3].concat(r):[4].concat(r,this.getY().toArray("be",e))},u.prototype.encode=function(t,e){return i.encode(this._encode(e),t)},u.prototype.precompute=function(t){if(this.precomputed)return this;var e={doubles:null,naf:null,beta:null};return e.naf=this._getNAFPoints(8),e.doubles=this._getDoubles(4,t),e.beta=this._getBeta(),this.precomputed=e,this},u.prototype._hasDoubles=function(t){if(!this.precomputed)return!1;var e=this.precomputed.doubles;return!!e&&e.points.length>=Math.ceil((t.bitLength()+1)/e.step)},u.prototype._getDoubles=function(t,e){if(this.precomputed&&this.precomputed.doubles)return this.precomputed.doubles;for(var r=[this],n=this,i=0;i<e;i+=t){for(var o=0;o<t;o++)n=n.dbl();r.push(n)}return{step:t,points:r}},u.prototype._getNAFPoints=function(t){if(this.precomputed&&this.precomputed.naf)return this.precomputed.naf;for(var e=[this],r=(1<<t)-1,n=1===r?null:this.dbl(),i=1;i<r;i++)e[i]=e[i-1].add(n);return{wnd:t,points:e}},u.prototype._getBeta=function(){return null},u.prototype.dblp=function(t){for(var e=this,r=0;r<t;r++)e=e.dbl();return e}},9723:(t,e,r)=>{"use strict";var n=r(1970),i=r(7799),o=r(1679),a=r(3334),s=n.assert;function c(t){this.twisted=1!=(0|t.a),this.mOneA=this.twisted&&-1==(0|t.a),this.extended=this.mOneA,a.call(this,"edwards",t),this.a=new i(t.a,16).umod(this.red.m),this.a=this.a.toRed(this.red),this.c=new i(t.c,16).toRed(this.red),this.c2=this.c.redSqr(),this.d=new i(t.d,16).toRed(this.red),this.dd=this.d.redAdd(this.d),s(!this.twisted||0===this.c.fromRed().cmpn(1)),this.oneC=1==(0|t.c)}function u(t,e,r,n,o){a.BasePoint.call(this,t,"projective"),null===e&&null===r&&null===n?(this.x=this.curve.zero,this.y=this.curve.one,this.z=this.curve.one,this.t=this.curve.zero,this.zOne=!0):(this.x=new i(e,16),this.y=new i(r,16),this.z=n?new i(n,16):this.curve.one,this.t=o&&new i(o,16),this.x.red||(this.x=this.x.toRed(this.curve.red)),this.y.red||(this.y=this.y.toRed(this.curve.red)),this.z.red||(this.z=this.z.toRed(this.curve.red)),this.t&&!this.t.red&&(this.t=this.t.toRed(this.curve.red)),this.zOne=this.z===this.curve.one,this.curve.extended&&!this.t&&(this.t=this.x.redMul(this.y),this.zOne||(this.t=this.t.redMul(this.z.redInvm()))))}o(c,a),t.exports=c,c.prototype._mulA=function(t){return this.mOneA?t.redNeg():this.a.redMul(t)},c.prototype._mulC=function(t){return this.oneC?t:this.c.redMul(t)},c.prototype.jpoint=function(t,e,r,n){return this.point(t,e,r,n)},c.prototype.pointFromX=function(t,e){(t=new i(t,16)).red||(t=t.toRed(this.red));var r=t.redSqr(),n=this.c2.redSub(this.a.redMul(r)),o=this.one.redSub(this.c2.redMul(this.d).redMul(r)),a=n.redMul(o.redInvm()),s=a.redSqrt();if(0!==s.redSqr().redSub(a).cmp(this.zero))throw new Error("invalid point");var c=s.fromRed().isOdd();return(e&&!c||!e&&c)&&(s=s.redNeg()),this.point(t,s)},c.prototype.pointFromY=function(t,e){(t=new i(t,16)).red||(t=t.toRed(this.red));var r=t.redSqr(),n=r.redSub(this.c2),o=r.redMul(this.d).redMul(this.c2).redSub(this.a),a=n.redMul(o.redInvm());if(0===a.cmp(this.zero)){if(e)throw new Error("invalid point");return this.point(this.zero,t)}var s=a.redSqrt();if(0!==s.redSqr().redSub(a).cmp(this.zero))throw new Error("invalid point");return s.fromRed().isOdd()!==e&&(s=s.redNeg()),this.point(s,t)},c.prototype.validate=function(t){if(t.isInfinity())return!0;t.normalize();var e=t.x.redSqr(),r=t.y.redSqr(),n=e.redMul(this.a).redAdd(r),i=this.c2.redMul(this.one.redAdd(this.d.redMul(e).redMul(r)));return 0===n.cmp(i)},o(u,a.BasePoint),c.prototype.pointFromJSON=function(t){return u.fromJSON(this,t)},c.prototype.point=function(t,e,r,n){return new u(this,t,e,r,n)},u.fromJSON=function(t,e){return new u(t,e[0],e[1],e[2])},u.prototype.inspect=function(){return this.isInfinity()?"<EC Point Infinity>":"<EC Point x: "+this.x.fromRed().toString(16,2)+" y: "+this.y.fromRed().toString(16,2)+" z: "+this.z.fromRed().toString(16,2)+">"},u.prototype.isInfinity=function(){return 0===this.x.cmpn(0)&&(0===this.y.cmp(this.z)||this.zOne&&0===this.y.cmp(this.curve.c))},u.prototype._extDbl=function(){var t=this.x.redSqr(),e=this.y.redSqr(),r=this.z.redSqr();r=r.redIAdd(r);var n=this.curve._mulA(t),i=this.x.redAdd(this.y).redSqr().redISub(t).redISub(e),o=n.redAdd(e),a=o.redSub(r),s=n.redSub(e),c=i.redMul(a),u=o.redMul(s),f=i.redMul(s),l=a.redMul(o);return this.curve.point(c,u,l,f)},u.prototype._projDbl=function(){var t,e,r,n,i,o,a=this.x.redAdd(this.y).redSqr(),s=this.x.redSqr(),c=this.y.redSqr();if(this.curve.twisted){var u=(n=this.curve._mulA(s)).redAdd(c);this.zOne?(t=a.redSub(s).redSub(c).redMul(u.redSub(this.curve.two)),e=u.redMul(n.redSub(c)),r=u.redSqr().redSub(u).redSub(u)):(i=this.z.redSqr(),o=u.redSub(i).redISub(i),t=a.redSub(s).redISub(c).redMul(o),e=u.redMul(n.redSub(c)),r=u.redMul(o))}else n=s.redAdd(c),i=this.curve._mulC(this.z).redSqr(),o=n.redSub(i).redSub(i),t=this.curve._mulC(a.redISub(n)).redMul(o),e=this.curve._mulC(n).redMul(s.redISub(c)),r=n.redMul(o);return this.curve.point(t,e,r)},u.prototype.dbl=function(){return this.isInfinity()?this:this.curve.extended?this._extDbl():this._projDbl()},u.prototype._extAdd=function(t){var e=this.y.redSub(this.x).redMul(t.y.redSub(t.x)),r=this.y.redAdd(this.x).redMul(t.y.redAdd(t.x)),n=this.t.redMul(this.curve.dd).redMul(t.t),i=this.z.redMul(t.z.redAdd(t.z)),o=r.redSub(e),a=i.redSub(n),s=i.redAdd(n),c=r.redAdd(e),u=o.redMul(a),f=s.redMul(c),l=o.redMul(c),h=a.redMul(s);return this.curve.point(u,f,h,l)},u.prototype._projAdd=function(t){var e,r,n=this.z.redMul(t.z),i=n.redSqr(),o=this.x.redMul(t.x),a=this.y.redMul(t.y),s=this.curve.d.redMul(o).redMul(a),c=i.redSub(s),u=i.redAdd(s),f=this.x.redAdd(this.y).redMul(t.x.redAdd(t.y)).redISub(o).redISub(a),l=n.redMul(c).redMul(f);return this.curve.twisted?(e=n.redMul(u).redMul(a.redSub(this.curve._mulA(o))),r=c.redMul(u)):(e=n.redMul(u).redMul(a.redSub(o)),r=this.curve._mulC(c).redMul(u)),this.curve.point(l,e,r)},u.prototype.add=function(t){return this.isInfinity()?t:t.isInfinity()?this:this.curve.extended?this._extAdd(t):this._projAdd(t)},u.prototype.mul=function(t){return this._hasDoubles(t)?this.curve._fixedNafMul(this,t):this.curve._wnafMul(this,t)},u.prototype.mulAdd=function(t,e,r){return this.curve._wnafMulAdd(1,[this,e],[t,r],2,!1)},u.prototype.jmulAdd=function(t,e,r){return this.curve._wnafMulAdd(1,[this,e],[t,r],2,!0)},u.prototype.normalize=function(){if(this.zOne)return this;var t=this.z.redInvm();return this.x=this.x.redMul(t),this.y=this.y.redMul(t),this.t&&(this.t=this.t.redMul(t)),this.z=this.curve.one,this.zOne=!0,this},u.prototype.neg=function(){return this.curve.point(this.x.redNeg(),this.y,this.z,this.t&&this.t.redNeg())},u.prototype.getX=function(){return this.normalize(),this.x.fromRed()},u.prototype.getY=function(){return this.normalize(),this.y.fromRed()},u.prototype.eq=function(t){return this===t||0===this.getX().cmp(t.getX())&&0===this.getY().cmp(t.getY())},u.prototype.eqXToP=function(t){var e=t.toRed(this.curve.red).redMul(this.z);if(0===this.x.cmp(e))return!0;for(var r=t.clone(),n=this.curve.redN.redMul(this.z);;){if(r.iadd(this.curve.n),r.cmp(this.curve.p)>=0)return!1;if(e.redIAdd(n),0===this.x.cmp(e))return!0}},u.prototype.toP=u.prototype.normalize,u.prototype.mixedAdd=u.prototype.add},5803:(t,e,r)=>{"use strict";var n=e;n.base=r(3334),n.short=r(5045),n.mont=r(3453),n.edwards=r(9723)},3453:(t,e,r)=>{"use strict";var n=r(7799),i=r(1679),o=r(3334),a=r(1970);function s(t){o.call(this,"mont",t),this.a=new n(t.a,16).toRed(this.red),this.b=new n(t.b,16).toRed(this.red),this.i4=new n(4).toRed(this.red).redInvm(),this.two=new n(2).toRed(this.red),this.a24=this.i4.redMul(this.a.redAdd(this.two))}function c(t,e,r){o.BasePoint.call(this,t,"projective"),null===e&&null===r?(this.x=this.curve.one,this.z=this.curve.zero):(this.x=new n(e,16),this.z=new n(r,16),this.x.red||(this.x=this.x.toRed(this.curve.red)),this.z.red||(this.z=this.z.toRed(this.curve.red)))}i(s,o),t.exports=s,s.prototype.validate=function(t){var e=t.normalize().x,r=e.redSqr(),n=r.redMul(e).redAdd(r.redMul(this.a)).redAdd(e);return 0===n.redSqrt().redSqr().cmp(n)},i(c,o.BasePoint),s.prototype.decodePoint=function(t,e){return this.point(a.toArray(t,e),1)},s.prototype.point=function(t,e){return new c(this,t,e)},s.prototype.pointFromJSON=function(t){return c.fromJSON(this,t)},c.prototype.precompute=function(){},c.prototype._encode=function(){return this.getX().toArray("be",this.curve.p.byteLength())},c.fromJSON=function(t,e){return new c(t,e[0],e[1]||t.one)},c.prototype.inspect=function(){return this.isInfinity()?"<EC Point Infinity>":"<EC Point x: "+this.x.fromRed().toString(16,2)+" z: "+this.z.fromRed().toString(16,2)+">"},c.prototype.isInfinity=function(){return 0===this.z.cmpn(0)},c.prototype.dbl=function(){var t=this.x.redAdd(this.z).redSqr(),e=this.x.redSub(this.z).redSqr(),r=t.redSub(e),n=t.redMul(e),i=r.redMul(e.redAdd(this.curve.a24.redMul(r)));return this.curve.point(n,i)},c.prototype.add=function(){throw new Error("Not supported on Montgomery curve")},c.prototype.diffAdd=function(t,e){var r=this.x.redAdd(this.z),n=this.x.redSub(this.z),i=t.x.redAdd(t.z),o=t.x.redSub(t.z).redMul(r),a=i.redMul(n),s=e.z.redMul(o.redAdd(a).redSqr()),c=e.x.redMul(o.redISub(a).redSqr());return this.curve.point(s,c)},c.prototype.mul=function(t){for(var e=t.clone(),r=this,n=this.curve.point(null,null),i=[];0!==e.cmpn(0);e.iushrn(1))i.push(e.andln(1));for(var o=i.length-1;o>=0;o--)0===i[o]?(r=r.diffAdd(n,this),n=n.dbl()):(n=r.diffAdd(n,this),r=r.dbl());return n},c.prototype.mulAdd=function(){throw new Error("Not supported on Montgomery curve")},c.prototype.jumlAdd=function(){throw new Error("Not supported on Montgomery curve")},c.prototype.eq=function(t){return 0===this.getX().cmp(t.getX())},c.prototype.normalize=function(){return this.x=this.x.redMul(this.z.redInvm()),this.z=this.curve.one,this},c.prototype.getX=function(){return this.normalize(),this.x.fromRed()}},5045:(t,e,r)=>{"use strict";var n=r(1970),i=r(7799),o=r(1679),a=r(3334),s=n.assert;function c(t){a.call(this,"short",t),this.a=new i(t.a,16).toRed(this.red),this.b=new i(t.b,16).toRed(this.red),this.tinv=this.two.redInvm(),this.zeroA=0===this.a.fromRed().cmpn(0),this.threeA=0===this.a.fromRed().sub(this.p).cmpn(-3),this.endo=this._getEndomorphism(t),this._endoWnafT1=new Array(4),this._endoWnafT2=new Array(4)}function u(t,e,r,n){a.BasePoint.call(this,t,"affine"),null===e&&null===r?(this.x=null,this.y=null,this.inf=!0):(this.x=new i(e,16),this.y=new i(r,16),n&&(this.x.forceRed(this.curve.red),this.y.forceRed(this.curve.red)),this.x.red||(this.x=this.x.toRed(this.curve.red)),this.y.red||(this.y=this.y.toRed(this.curve.red)),this.inf=!1)}function f(t,e,r,n){a.BasePoint.call(this,t,"jacobian"),null===e&&null===r&&null===n?(this.x=this.curve.one,this.y=this.curve.one,this.z=new i(0)):(this.x=new i(e,16),this.y=new i(r,16),this.z=new i(n,16)),this.x.red||(this.x=this.x.toRed(this.curve.red)),this.y.red||(this.y=this.y.toRed(this.curve.red)),this.z.red||(this.z=this.z.toRed(this.curve.red)),this.zOne=this.z===this.curve.one}o(c,a),t.exports=c,c.prototype._getEndomorphism=function(t){if(this.zeroA&&this.g&&this.n&&1===this.p.modn(3)){var e,r;if(t.beta)e=new i(t.beta,16).toRed(this.red);else{var n=this._getEndoRoots(this.p);e=(e=n[0].cmp(n[1])<0?n[0]:n[1]).toRed(this.red)}if(t.lambda)r=new i(t.lambda,16);else{var o=this._getEndoRoots(this.n);0===this.g.mul(o[0]).x.cmp(this.g.x.redMul(e))?r=o[0]:(r=o[1],s(0===this.g.mul(r).x.cmp(this.g.x.redMul(e))))}return{beta:e,lambda:r,basis:t.basis?t.basis.map((function(t){return{a:new i(t.a,16),b:new i(t.b,16)}})):this._getEndoBasis(r)}}},c.prototype._getEndoRoots=function(t){var e=t===this.p?this.red:i.mont(t),r=new i(2).toRed(e).redInvm(),n=r.redNeg(),o=new i(3).toRed(e).redNeg().redSqrt().redMul(r);return[n.redAdd(o).fromRed(),n.redSub(o).fromRed()]},c.prototype._getEndoBasis=function(t){for(var e,r,n,o,a,s,c,u,f,l=this.n.ushrn(Math.floor(this.n.bitLength()/2)),h=t,p=this.n.clone(),d=new i(1),y=new i(0),b=new i(0),m=new i(1),v=0;0!==h.cmpn(0);){var g=p.div(h);u=p.sub(g.mul(h)),f=b.sub(g.mul(d));var _=m.sub(g.mul(y));if(!n&&u.cmp(l)<0)e=c.neg(),r=d,n=u.neg(),o=f;else if(n&&2==++v)break;c=u,p=h,h=u,b=d,d=f,m=y,y=_}a=u.neg(),s=f;var w=n.sqr().add(o.sqr());return a.sqr().add(s.sqr()).cmp(w)>=0&&(a=e,s=r),n.negative&&(n=n.neg(),o=o.neg()),a.negative&&(a=a.neg(),s=s.neg()),[{a:n,b:o},{a,b:s}]},c.prototype._endoSplit=function(t){var e=this.endo.basis,r=e[0],n=e[1],i=n.b.mul(t).divRound(this.n),o=r.b.neg().mul(t).divRound(this.n),a=i.mul(r.a),s=o.mul(n.a),c=i.mul(r.b),u=o.mul(n.b);return{k1:t.sub(a).sub(s),k2:c.add(u).neg()}},c.prototype.pointFromX=function(t,e){(t=new i(t,16)).red||(t=t.toRed(this.red));var r=t.redSqr().redMul(t).redIAdd(t.redMul(this.a)).redIAdd(this.b),n=r.redSqrt();if(0!==n.redSqr().redSub(r).cmp(this.zero))throw new Error("invalid point");var o=n.fromRed().isOdd();return(e&&!o||!e&&o)&&(n=n.redNeg()),this.point(t,n)},c.prototype.validate=function(t){if(t.inf)return!0;var e=t.x,r=t.y,n=this.a.redMul(e),i=e.redSqr().redMul(e).redIAdd(n).redIAdd(this.b);return 0===r.redSqr().redISub(i).cmpn(0)},c.prototype._endoWnafMulAdd=function(t,e,r){for(var n=this._endoWnafT1,i=this._endoWnafT2,o=0;o<t.length;o++){var a=this._endoSplit(e[o]),s=t[o],c=s._getBeta();a.k1.negative&&(a.k1.ineg(),s=s.neg(!0)),a.k2.negative&&(a.k2.ineg(),c=c.neg(!0)),n[2*o]=s,n[2*o+1]=c,i[2*o]=a.k1,i[2*o+1]=a.k2}for(var u=this._wnafMulAdd(1,n,i,2*o,r),f=0;f<2*o;f++)n[f]=null,i[f]=null;return u},o(u,a.BasePoint),c.prototype.point=function(t,e,r){return new u(this,t,e,r)},c.prototype.pointFromJSON=function(t,e){return u.fromJSON(this,t,e)},u.prototype._getBeta=function(){if(this.curve.endo){var t=this.precomputed;if(t&&t.beta)return t.beta;var e=this.curve.point(this.x.redMul(this.curve.endo.beta),this.y);if(t){var r=this.curve,n=function(t){return r.point(t.x.redMul(r.endo.beta),t.y)};t.beta=e,e.precomputed={beta:null,naf:t.naf&&{wnd:t.naf.wnd,points:t.naf.points.map(n)},doubles:t.doubles&&{step:t.doubles.step,points:t.doubles.points.map(n)}}}return e}},u.prototype.toJSON=function(){return this.precomputed?[this.x,this.y,this.precomputed&&{doubles:this.precomputed.doubles&&{step:this.precomputed.doubles.step,points:this.precomputed.doubles.points.slice(1)},naf:this.precomputed.naf&&{wnd:this.precomputed.naf.wnd,points:this.precomputed.naf.points.slice(1)}}]:[this.x,this.y]},u.fromJSON=function(t,e,r){"string"==typeof e&&(e=JSON.parse(e));var n=t.point(e[0],e[1],r);if(!e[2])return n;function i(e){return t.point(e[0],e[1],r)}var o=e[2];return n.precomputed={beta:null,doubles:o.doubles&&{step:o.doubles.step,points:[n].concat(o.doubles.points.map(i))},naf:o.naf&&{wnd:o.naf.wnd,points:[n].concat(o.naf.points.map(i))}},n},u.prototype.inspect=function(){return this.isInfinity()?"<EC Point Infinity>":"<EC Point x: "+this.x.fromRed().toString(16,2)+" y: "+this.y.fromRed().toString(16,2)+">"},u.prototype.isInfinity=function(){return this.inf},u.prototype.add=function(t){if(this.inf)return t;if(t.inf)return this;if(this.eq(t))return this.dbl();if(this.neg().eq(t))return this.curve.point(null,null);if(0===this.x.cmp(t.x))return this.curve.point(null,null);var e=this.y.redSub(t.y);0!==e.cmpn(0)&&(e=e.redMul(this.x.redSub(t.x).redInvm()));var r=e.redSqr().redISub(this.x).redISub(t.x),n=e.redMul(this.x.redSub(r)).redISub(this.y);return this.curve.point(r,n)},u.prototype.dbl=function(){if(this.inf)return this;var t=this.y.redAdd(this.y);if(0===t.cmpn(0))return this.curve.point(null,null);var e=this.curve.a,r=this.x.redSqr(),n=t.redInvm(),i=r.redAdd(r).redIAdd(r).redIAdd(e).redMul(n),o=i.redSqr().redISub(this.x.redAdd(this.x)),a=i.redMul(this.x.redSub(o)).redISub(this.y);return this.curve.point(o,a)},u.prototype.getX=function(){return this.x.fromRed()},u.prototype.getY=function(){return this.y.fromRed()},u.prototype.mul=function(t){return t=new i(t,16),this.isInfinity()?this:this._hasDoubles(t)?this.curve._fixedNafMul(this,t):this.curve.endo?this.curve._endoWnafMulAdd([this],[t]):this.curve._wnafMul(this,t)},u.prototype.mulAdd=function(t,e,r){var n=[this,e],i=[t,r];return this.curve.endo?this.curve._endoWnafMulAdd(n,i):this.curve._wnafMulAdd(1,n,i,2)},u.prototype.jmulAdd=function(t,e,r){var n=[this,e],i=[t,r];return this.curve.endo?this.curve._endoWnafMulAdd(n,i,!0):this.curve._wnafMulAdd(1,n,i,2,!0)},u.prototype.eq=function(t){return this===t||this.inf===t.inf&&(this.inf||0===this.x.cmp(t.x)&&0===this.y.cmp(t.y))},u.prototype.neg=function(t){if(this.inf)return this;var e=this.curve.point(this.x,this.y.redNeg());if(t&&this.precomputed){var r=this.precomputed,n=function(t){return t.neg()};e.precomputed={naf:r.naf&&{wnd:r.naf.wnd,points:r.naf.points.map(n)},doubles:r.doubles&&{step:r.doubles.step,points:r.doubles.points.map(n)}}}return e},u.prototype.toJ=function(){return this.inf?this.curve.jpoint(null,null,null):this.curve.jpoint(this.x,this.y,this.curve.one)},o(f,a.BasePoint),c.prototype.jpoint=function(t,e,r){return new f(this,t,e,r)},f.prototype.toP=function(){if(this.isInfinity())return this.curve.point(null,null);var t=this.z.redInvm(),e=t.redSqr(),r=this.x.redMul(e),n=this.y.redMul(e).redMul(t);return this.curve.point(r,n)},f.prototype.neg=function(){return this.curve.jpoint(this.x,this.y.redNeg(),this.z)},f.prototype.add=function(t){if(this.isInfinity())return t;if(t.isInfinity())return this;var e=t.z.redSqr(),r=this.z.redSqr(),n=this.x.redMul(e),i=t.x.redMul(r),o=this.y.redMul(e.redMul(t.z)),a=t.y.redMul(r.redMul(this.z)),s=n.redSub(i),c=o.redSub(a);if(0===s.cmpn(0))return 0!==c.cmpn(0)?this.curve.jpoint(null,null,null):this.dbl();var u=s.redSqr(),f=u.redMul(s),l=n.redMul(u),h=c.redSqr().redIAdd(f).redISub(l).redISub(l),p=c.redMul(l.redISub(h)).redISub(o.redMul(f)),d=this.z.redMul(t.z).redMul(s);return this.curve.jpoint(h,p,d)},f.prototype.mixedAdd=function(t){if(this.isInfinity())return t.toJ();if(t.isInfinity())return this;var e=this.z.redSqr(),r=this.x,n=t.x.redMul(e),i=this.y,o=t.y.redMul(e).redMul(this.z),a=r.redSub(n),s=i.redSub(o);if(0===a.cmpn(0))return 0!==s.cmpn(0)?this.curve.jpoint(null,null,null):this.dbl();var c=a.redSqr(),u=c.redMul(a),f=r.redMul(c),l=s.redSqr().redIAdd(u).redISub(f).redISub(f),h=s.redMul(f.redISub(l)).redISub(i.redMul(u)),p=this.z.redMul(a);return this.curve.jpoint(l,h,p)},f.prototype.dblp=function(t){if(0===t)return this;if(this.isInfinity())return this;if(!t)return this.dbl();var e;if(this.curve.zeroA||this.curve.threeA){var r=this;for(e=0;e<t;e++)r=r.dbl();return r}var n=this.curve.a,i=this.curve.tinv,o=this.x,a=this.y,s=this.z,c=s.redSqr().redSqr(),u=a.redAdd(a);for(e=0;e<t;e++){var f=o.redSqr(),l=u.redSqr(),h=l.redSqr(),p=f.redAdd(f).redIAdd(f).redIAdd(n.redMul(c)),d=o.redMul(l),y=p.redSqr().redISub(d.redAdd(d)),b=d.redISub(y),m=p.redMul(b);m=m.redIAdd(m).redISub(h);var v=u.redMul(s);e+1<t&&(c=c.redMul(h)),o=y,s=v,u=m}return this.curve.jpoint(o,u.redMul(i),s)},f.prototype.dbl=function(){return this.isInfinity()?this:this.curve.zeroA?this._zeroDbl():this.curve.threeA?this._threeDbl():this._dbl()},f.prototype._zeroDbl=function(){var t,e,r;if(this.zOne){var n=this.x.redSqr(),i=this.y.redSqr(),o=i.redSqr(),a=this.x.redAdd(i).redSqr().redISub(n).redISub(o);a=a.redIAdd(a);var s=n.redAdd(n).redIAdd(n),c=s.redSqr().redISub(a).redISub(a),u=o.redIAdd(o);u=(u=u.redIAdd(u)).redIAdd(u),t=c,e=s.redMul(a.redISub(c)).redISub(u),r=this.y.redAdd(this.y)}else{var f=this.x.redSqr(),l=this.y.redSqr(),h=l.redSqr(),p=this.x.redAdd(l).redSqr().redISub(f).redISub(h);p=p.redIAdd(p);var d=f.redAdd(f).redIAdd(f),y=d.redSqr(),b=h.redIAdd(h);b=(b=b.redIAdd(b)).redIAdd(b),t=y.redISub(p).redISub(p),e=d.redMul(p.redISub(t)).redISub(b),r=(r=this.y.redMul(this.z)).redIAdd(r)}return this.curve.jpoint(t,e,r)},f.prototype._threeDbl=function(){var t,e,r;if(this.zOne){var n=this.x.redSqr(),i=this.y.redSqr(),o=i.redSqr(),a=this.x.redAdd(i).redSqr().redISub(n).redISub(o);a=a.redIAdd(a);var s=n.redAdd(n).redIAdd(n).redIAdd(this.curve.a),c=s.redSqr().redISub(a).redISub(a);t=c;var u=o.redIAdd(o);u=(u=u.redIAdd(u)).redIAdd(u),e=s.redMul(a.redISub(c)).redISub(u),r=this.y.redAdd(this.y)}else{var f=this.z.redSqr(),l=this.y.redSqr(),h=this.x.redMul(l),p=this.x.redSub(f).redMul(this.x.redAdd(f));p=p.redAdd(p).redIAdd(p);var d=h.redIAdd(h),y=(d=d.redIAdd(d)).redAdd(d);t=p.redSqr().redISub(y),r=this.y.redAdd(this.z).redSqr().redISub(l).redISub(f);var b=l.redSqr();b=(b=(b=b.redIAdd(b)).redIAdd(b)).redIAdd(b),e=p.redMul(d.redISub(t)).redISub(b)}return this.curve.jpoint(t,e,r)},f.prototype._dbl=function(){var t=this.curve.a,e=this.x,r=this.y,n=this.z,i=n.redSqr().redSqr(),o=e.redSqr(),a=r.redSqr(),s=o.redAdd(o).redIAdd(o).redIAdd(t.redMul(i)),c=e.redAdd(e),u=(c=c.redIAdd(c)).redMul(a),f=s.redSqr().redISub(u.redAdd(u)),l=u.redISub(f),h=a.redSqr();h=(h=(h=h.redIAdd(h)).redIAdd(h)).redIAdd(h);var p=s.redMul(l).redISub(h),d=r.redAdd(r).redMul(n);return this.curve.jpoint(f,p,d)},f.prototype.trpl=function(){if(!this.curve.zeroA)return this.dbl().add(this);var t=this.x.redSqr(),e=this.y.redSqr(),r=this.z.redSqr(),n=e.redSqr(),i=t.redAdd(t).redIAdd(t),o=i.redSqr(),a=this.x.redAdd(e).redSqr().redISub(t).redISub(n),s=(a=(a=(a=a.redIAdd(a)).redAdd(a).redIAdd(a)).redISub(o)).redSqr(),c=n.redIAdd(n);c=(c=(c=c.redIAdd(c)).redIAdd(c)).redIAdd(c);var u=i.redIAdd(a).redSqr().redISub(o).redISub(s).redISub(c),f=e.redMul(u);f=(f=f.redIAdd(f)).redIAdd(f);var l=this.x.redMul(s).redISub(f);l=(l=l.redIAdd(l)).redIAdd(l);var h=this.y.redMul(u.redMul(c.redISub(u)).redISub(a.redMul(s)));h=(h=(h=h.redIAdd(h)).redIAdd(h)).redIAdd(h);var p=this.z.redAdd(a).redSqr().redISub(r).redISub(s);return this.curve.jpoint(l,h,p)},f.prototype.mul=function(t,e){return t=new i(t,e),this.curve._wnafMul(this,t)},f.prototype.eq=function(t){if("affine"===t.type)return this.eq(t.toJ());if(this===t)return!0;var e=this.z.redSqr(),r=t.z.redSqr();if(0!==this.x.redMul(r).redISub(t.x.redMul(e)).cmpn(0))return!1;var n=e.redMul(this.z),i=r.redMul(t.z);return 0===this.y.redMul(i).redISub(t.y.redMul(n)).cmpn(0)},f.prototype.eqXToP=function(t){var e=this.z.redSqr(),r=t.toRed(this.curve.red).redMul(e);if(0===this.x.cmp(r))return!0;for(var n=t.clone(),i=this.curve.redN.redMul(e);;){if(n.iadd(this.curve.n),n.cmp(this.curve.p)>=0)return!1;if(r.redIAdd(i),0===this.x.cmp(r))return!0}},f.prototype.inspect=function(){return this.isInfinity()?"<EC JPoint Infinity>":"<EC JPoint x: "+this.x.toString(16,2)+" y: "+this.y.toString(16,2)+" z: "+this.z.toString(16,2)+">"},f.prototype.isInfinity=function(){return 0===this.z.cmpn(0)}},6379:(t,e,r)=>{"use strict";var n,i=e,o=r(2859),a=r(5803),s=r(1970).assert;function c(t){"short"===t.type?this.curve=new a.short(t):"edwards"===t.type?this.curve=new a.edwards(t):this.curve=new a.mont(t),this.g=this.curve.g,this.n=this.curve.n,this.hash=t.hash,s(this.g.validate(),"Invalid curve"),s(this.g.mul(this.n).isInfinity(),"Invalid curve, G*N != O")}function u(t,e){Object.defineProperty(i,t,{configurable:!0,enumerable:!0,get:function(){var r=new c(e);return Object.defineProperty(i,t,{configurable:!0,enumerable:!0,value:r}),r}})}i.PresetCurve=c,u("p192",{type:"short",prime:"p192",p:"ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff",a:"ffffffff ffffffff ffffffff fffffffe ffffffff fffffffc",b:"64210519 e59c80e7 0fa7e9ab 72243049 feb8deec c146b9b1",n:"ffffffff ffffffff ffffffff 99def836 146bc9b1 b4d22831",hash:o.sha256,gRed:!1,g:["188da80e b03090f6 7cbf20eb 43a18800 f4ff0afd 82ff1012","07192b95 ffc8da78 631011ed 6b24cdd5 73f977a1 1e794811"]}),u("p224",{type:"short",prime:"p224",p:"ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001",a:"ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff fffffffe",b:"b4050a85 0c04b3ab f5413256 5044b0b7 d7bfd8ba 270b3943 2355ffb4",n:"ffffffff ffffffff ffffffff ffff16a2 e0b8f03e 13dd2945 5c5c2a3d",hash:o.sha256,gRed:!1,g:["b70e0cbd 6bb4bf7f 321390b9 4a03c1d3 56c21122 343280d6 115c1d21","bd376388 b5f723fb 4c22dfe6 cd4375a0 5a074764 44d58199 85007e34"]}),u("p256",{type:"short",prime:null,p:"ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff ffffffff",a:"ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff fffffffc",b:"5ac635d8 aa3a93e7 b3ebbd55 769886bc 651d06b0 cc53b0f6 3bce3c3e 27d2604b",n:"ffffffff 00000000 ffffffff ffffffff bce6faad a7179e84 f3b9cac2 fc632551",hash:o.sha256,gRed:!1,g:["6b17d1f2 e12c4247 f8bce6e5 63a440f2 77037d81 2deb33a0 f4a13945 d898c296","4fe342e2 fe1a7f9b 8ee7eb4a 7c0f9e16 2bce3357 6b315ece cbb64068 37bf51f5"]}),u("p384",{type:"short",prime:null,p:"ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe ffffffff 00000000 00000000 ffffffff",a:"ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe ffffffff 00000000 00000000 fffffffc",b:"b3312fa7 e23ee7e4 988e056b e3f82d19 181d9c6e fe814112 0314088f 5013875a c656398d 8a2ed19d 2a85c8ed d3ec2aef",n:"ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff c7634d81 f4372ddf 581a0db2 48b0a77a ecec196a ccc52973",hash:o.sha384,gRed:!1,g:["aa87ca22 be8b0537 8eb1c71e f320ad74 6e1d3b62 8ba79b98 59f741e0 82542a38 5502f25d bf55296c 3a545e38 72760ab7","3617de4a 96262c6f 5d9e98bf 9292dc29 f8f41dbd 289a147c e9da3113 b5f0b8c0 0a60b1ce 1d7e819d 7a431d7c 90ea0e5f"]}),u("p521",{type:"short",prime:null,p:"000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff",a:"000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffc",b:"00000051 953eb961 8e1c9a1f 929a21a0 b68540ee a2da725b 99b315f3 b8b48991 8ef109e1 56193951 ec7e937b 1652c0bd 3bb1bf07 3573df88 3d2c34f1 ef451fd4 6b503f00",n:"000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffa 51868783 bf2f966b 7fcc0148 f709a5d0 3bb5c9b8 899c47ae bb6fb71e 91386409",hash:o.sha512,gRed:!1,g:["000000c6 858e06b7 0404e9cd 9e3ecb66 2395b442 9c648139 053fb521 f828af60 6b4d3dba a14b5e77 efe75928 fe1dc127 a2ffa8de 3348b3c1 856a429b f97e7e31 c2e5bd66","00000118 39296a78 9a3bc004 5c8a5fb4 2c7d1bd9 98f54449 579b4468 17afbd17 273e662c 97ee7299 5ef42640 c550b901 3fad0761 353c7086 a272c240 88be9476 9fd16650"]}),u("curve25519",{type:"mont",prime:"p25519",p:"7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed",a:"76d06",b:"1",n:"1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed",hash:o.sha256,gRed:!1,g:["9"]}),u("ed25519",{type:"edwards",prime:"p25519",p:"7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed",a:"-1",c:"1",d:"52036cee2b6ffe73 8cc740797779e898 00700a4d4141d8ab 75eb4dca135978a3",n:"1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed",hash:o.sha256,gRed:!1,g:["216936d3cd6e53fec0a4e231fdd6dc5c692cc7609525a7b2c9562d608f25d51a","6666666666666666666666666666666666666666666666666666666666666658"]});try{n=r(5586)}catch(t){n=void 0}u("secp256k1",{type:"short",prime:"k256",p:"ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f",a:"0",b:"7",n:"ffffffff ffffffff ffffffff fffffffe baaedce6 af48a03b bfd25e8c d0364141",h:"1",hash:o.sha256,beta:"7ae96a2b657c07106e64479eac3434e99cf0497512f58995c1396c28719501ee",lambda:"5363ad4cc05c30e0a5261c028812645a122e22ea20816678df02967c1b23bd72",basis:[{a:"3086d221a7d46bcde86c90e49284eb15",b:"-e4437ed6010e88286f547fa90abfe4c3"},{a:"114ca50f7a8e2f3f657c1108d9d44cfd8",b:"3086d221a7d46bcde86c90e49284eb15"}],gRed:!1,g:["79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798","483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8",n]})},7416:(t,e,r)=>{"use strict";function n(t){return n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},n(t)}var i=r(7799),o=r(6934),a=r(1970),s=r(6379),c=r(8904),u=a.assert,f=r(3643),l=r(3686);function h(t){if(!(this instanceof h))return new h(t);"string"==typeof t&&(u(Object.prototype.hasOwnProperty.call(s,t),"Unknown curve "+t),t=s[t]),t instanceof s.PresetCurve&&(t={curve:t}),this.curve=t.curve.curve,this.n=this.curve.n,this.nh=this.n.ushrn(1),this.g=this.curve.g,this.g=t.curve.g,this.g.precompute(t.curve.n.bitLength()+1),this.hash=t.hash||t.curve.hash}t.exports=h,h.prototype.keyPair=function(t){return new f(this,t)},h.prototype.keyFromPrivate=function(t,e){return f.fromPrivate(this,t,e)},h.prototype.keyFromPublic=function(t,e){return f.fromPublic(this,t,e)},h.prototype.genKeyPair=function(t){t||(t={});for(var e=new o({hash:this.hash,pers:t.pers,persEnc:t.persEnc||"utf8",entropy:t.entropy||c(this.hash.hmacStrength),entropyEnc:t.entropy&&t.entropyEnc||"utf8",nonce:this.n.toArray()}),r=this.n.byteLength(),n=this.n.sub(new i(2));;){var a=new i(e.generate(r));if(!(a.cmp(n)>0))return a.iaddn(1),this.keyFromPrivate(a)}},h.prototype._truncateToN=function(t,e,r){var o;if(i.isBN(t)||"number"==typeof t)o=(t=new i(t,16)).byteLength();else if("object"===n(t))o=t.length,t=new i(t,16);else{var a=t.toString();o=a.length+1>>>1,t=new i(a,16)}"number"!=typeof r&&(r=8*o);var s=r-this.n.bitLength();return s>0&&(t=t.ushrn(s)),!e&&t.cmp(this.n)>=0?t.sub(this.n):t},h.prototype.sign=function(t,e,r,a){if("object"===n(r)&&(a=r,r=null),a||(a={}),"string"!=typeof t&&"number"!=typeof t&&!i.isBN(t)){u("object"===n(t)&&t&&"number"==typeof t.length,"Expected message to be an array-like, a hex string, or a BN instance"),u(t.length>>>0===t.length);for(var s=0;s<t.length;s++)u((255&t[s])===t[s])}e=this.keyFromPrivate(e,r),t=this._truncateToN(t,!1,a.msgBitLength),u(!t.isNeg(),"Can not sign a negative message");var c=this.n.byteLength(),f=e.getPrivate().toArray("be",c),h=t.toArray("be",c);u(new i(h).eq(t),"Can not sign message");for(var p=new o({hash:this.hash,entropy:f,nonce:h,pers:a.pers,persEnc:a.persEnc||"utf8"}),d=this.n.sub(new i(1)),y=0;;y++){var b=a.k?a.k(y):new i(p.generate(this.n.byteLength()));if(!((b=this._truncateToN(b,!0)).cmpn(1)<=0||b.cmp(d)>=0)){var m=this.g.mul(b);if(!m.isInfinity()){var v=m.getX(),g=v.umod(this.n);if(0!==g.cmpn(0)){var _=b.invm(this.n).mul(g.mul(e.getPrivate()).iadd(t));if(0!==(_=_.umod(this.n)).cmpn(0)){var w=(m.getY().isOdd()?1:0)|(0!==v.cmp(g)?2:0);return a.canonical&&_.cmp(this.nh)>0&&(_=this.n.sub(_),w^=1),new l({r:g,s:_,recoveryParam:w})}}}}}},h.prototype.verify=function(t,e,r,n,i){i||(i={}),t=this._truncateToN(t,!1,i.msgBitLength),r=this.keyFromPublic(r,n);var o=(e=new l(e,"hex")).r,a=e.s;if(o.cmpn(1)<0||o.cmp(this.n)>=0)return!1;if(a.cmpn(1)<0||a.cmp(this.n)>=0)return!1;var s,c=a.invm(this.n),u=c.mul(t).umod(this.n),f=c.mul(o).umod(this.n);return this.curve._maxwellTrick?!(s=this.g.jmulAdd(u,r.getPublic(),f)).isInfinity()&&s.eqXToP(o):!(s=this.g.mulAdd(u,r.getPublic(),f)).isInfinity()&&0===s.getX().umod(this.n).cmp(o)},h.prototype.recoverPubKey=function(t,e,r,n){u((3&r)===r,"The recovery param is more than two bits"),e=new l(e,n);var o=this.n,a=new i(t),s=e.r,c=e.s,f=1&r,h=r>>1;if(s.cmp(this.curve.p.umod(this.curve.n))>=0&&h)throw new Error("Unable to find sencond key candinate");s=h?this.curve.pointFromX(s.add(this.curve.n),f):this.curve.pointFromX(s,f);var p=e.r.invm(o),d=o.sub(a).mul(p).umod(o),y=c.mul(p).umod(o);return this.g.mulAdd(d,s,y)},h.prototype.getKeyRecoveryParam=function(t,e,r,n){if(null!==(e=new l(e,n)).recoveryParam)return e.recoveryParam;for(var i=0;i<4;i++){var o;try{o=this.recoverPubKey(t,e,i)}catch(t){continue}if(o.eq(r))return i}throw new Error("Unable to find valid recovery factor")}},3643:(t,e,r)=>{"use strict";var n=r(7799),i=r(1970).assert;function o(t,e){this.ec=t,this.priv=null,this.pub=null,e.priv&&this._importPrivate(e.priv,e.privEnc),e.pub&&this._importPublic(e.pub,e.pubEnc)}t.exports=o,o.fromPublic=function(t,e,r){return e instanceof o?e:new o(t,{pub:e,pubEnc:r})},o.fromPrivate=function(t,e,r){return e instanceof o?e:new o(t,{priv:e,privEnc:r})},o.prototype.validate=function(){var t=this.getPublic();return t.isInfinity()?{result:!1,reason:"Invalid public key"}:t.validate()?t.mul(this.ec.curve.n).isInfinity()?{result:!0,reason:null}:{result:!1,reason:"Public key * N != O"}:{result:!1,reason:"Public key is not a point"}},o.prototype.getPublic=function(t,e){return"string"==typeof t&&(e=t,t=null),this.pub||(this.pub=this.ec.g.mul(this.priv)),e?this.pub.encode(e,t):this.pub},o.prototype.getPrivate=function(t){return"hex"===t?this.priv.toString(16,2):this.priv},o.prototype._importPrivate=function(t,e){this.priv=new n(t,e||16),this.priv=this.priv.umod(this.ec.curve.n)},o.prototype._importPublic=function(t,e){if(t.x||t.y)return"mont"===this.ec.curve.type?i(t.x,"Need x coordinate"):"short"!==this.ec.curve.type&&"edwards"!==this.ec.curve.type||i(t.x&&t.y,"Need both x and y coordinate"),void(this.pub=this.ec.curve.point(t.x,t.y));this.pub=this.ec.curve.decodePoint(t,e)},o.prototype.derive=function(t){return t.validate()||i(t.validate(),"public point not validated"),t.mul(this.priv).getX()},o.prototype.sign=function(t,e,r){return this.ec.sign(t,this,e,r)},o.prototype.verify=function(t,e,r){return this.ec.verify(t,e,this,void 0,r)},o.prototype.inspect=function(){return"<Key priv: "+(this.priv&&this.priv.toString(16,2))+" pub: "+(this.pub&&this.pub.inspect())+" >"}},3686:(t,e,r)=>{"use strict";var n=r(7799),i=r(1970),o=i.assert;function a(t,e){if(t instanceof a)return t;this._importDER(t,e)||(o(t.r&&t.s,"Signature without r or s"),this.r=new n(t.r,16),this.s=new n(t.s,16),void 0===t.recoveryParam?this.recoveryParam=null:this.recoveryParam=t.recoveryParam)}function s(){this.place=0}function c(t,e){var r=t[e.place++];if(!(128&r))return r;var n=15&r;if(0===n||n>4)return!1;if(0===t[e.place])return!1;for(var i=0,o=0,a=e.place;o<n;o++,a++)i<<=8,i|=t[a],i>>>=0;return!(i<=127)&&(e.place=a,i)}function u(t){for(var e=0,r=t.length-1;!t[e]&&!(128&t[e+1])&&e<r;)e++;return 0===e?t:t.slice(e)}function f(t,e){if(e<128)t.push(e);else{var r=1+(Math.log(e)/Math.LN2>>>3);for(t.push(128|r);--r;)t.push(e>>>(r<<3)&255);t.push(e)}}t.exports=a,a.prototype._importDER=function(t,e){t=i.toArray(t,e);var r=new s;if(48!==t[r.place++])return!1;var o=c(t,r);if(!1===o)return!1;if(o+r.place!==t.length)return!1;if(2!==t[r.place++])return!1;var a=c(t,r);if(!1===a)return!1;if(128&t[r.place])return!1;var u=t.slice(r.place,a+r.place);if(r.place+=a,2!==t[r.place++])return!1;var f=c(t,r);if(!1===f)return!1;if(t.length!==f+r.place)return!1;if(128&t[r.place])return!1;var l=t.slice(r.place,f+r.place);if(0===u[0]){if(!(128&u[1]))return!1;u=u.slice(1)}if(0===l[0]){if(!(128&l[1]))return!1;l=l.slice(1)}return this.r=new n(u),this.s=new n(l),this.recoveryParam=null,!0},a.prototype.toDER=function(t){var e=this.r.toArray(),r=this.s.toArray();for(128&e[0]&&(e=[0].concat(e)),128&r[0]&&(r=[0].concat(r)),e=u(e),r=u(r);!(r[0]||128&r[1]);)r=r.slice(1);var n=[2];f(n,e.length),(n=n.concat(e)).push(2),f(n,r.length);var o=n.concat(r),a=[48];return f(a,o.length),a=a.concat(o),i.encode(a,t)}},4919:(t,e,r)=>{"use strict";var n=r(2859),i=r(6379),o=r(1970),a=o.assert,s=o.parseBytes,c=r(208),u=r(8433);function f(t){if(a("ed25519"===t,"only tested with ed25519 so far"),!(this instanceof f))return new f(t);t=i[t].curve,this.curve=t,this.g=t.g,this.g.precompute(t.n.bitLength()+1),this.pointClass=t.point().constructor,this.encodingLength=Math.ceil(t.n.bitLength()/8),this.hash=n.sha512}t.exports=f,f.prototype.sign=function(t,e){t=s(t);var r=this.keyFromSecret(e),n=this.hashInt(r.messagePrefix(),t),i=this.g.mul(n),o=this.encodePoint(i),a=this.hashInt(o,r.pubBytes(),t).mul(r.priv()),c=n.add(a).umod(this.curve.n);return this.makeSignature({R:i,S:c,Rencoded:o})},f.prototype.verify=function(t,e,r){if(t=s(t),(e=this.makeSignature(e)).S().gte(e.eddsa.curve.n)||e.S().isNeg())return!1;var n=this.keyFromPublic(r),i=this.hashInt(e.Rencoded(),n.pubBytes(),t),o=this.g.mul(e.S());return e.R().add(n.pub().mul(i)).eq(o)},f.prototype.hashInt=function(){for(var t=this.hash(),e=0;e<arguments.length;e++)t.update(arguments[e]);return o.intFromLE(t.digest()).umod(this.curve.n)},f.prototype.keyFromPublic=function(t){return c.fromPublic(this,t)},f.prototype.keyFromSecret=function(t){return c.fromSecret(this,t)},f.prototype.makeSignature=function(t){return t instanceof u?t:new u(this,t)},f.prototype.encodePoint=function(t){var e=t.getY().toArray("le",this.encodingLength);return e[this.encodingLength-1]|=t.getX().isOdd()?128:0,e},f.prototype.decodePoint=function(t){var e=(t=o.parseBytes(t)).length-1,r=t.slice(0,e).concat(-129&t[e]),n=!!(128&t[e]),i=o.intFromLE(r);return this.curve.pointFromY(i,n)},f.prototype.encodeInt=function(t){return t.toArray("le",this.encodingLength)},f.prototype.decodeInt=function(t){return o.intFromLE(t)},f.prototype.isPoint=function(t){return t instanceof this.pointClass}},208:(t,e,r)=>{"use strict";var n=r(1970),i=n.assert,o=n.parseBytes,a=n.cachedProperty;function s(t,e){this.eddsa=t,this._secret=o(e.secret),t.isPoint(e.pub)?this._pub=e.pub:this._pubBytes=o(e.pub)}s.fromPublic=function(t,e){return e instanceof s?e:new s(t,{pub:e})},s.fromSecret=function(t,e){return e instanceof s?e:new s(t,{secret:e})},s.prototype.secret=function(){return this._secret},a(s,"pubBytes",(function(){return this.eddsa.encodePoint(this.pub())})),a(s,"pub",(function(){return this._pubBytes?this.eddsa.decodePoint(this._pubBytes):this.eddsa.g.mul(this.priv())})),a(s,"privBytes",(function(){var t=this.eddsa,e=this.hash(),r=t.encodingLength-1,n=e.slice(0,t.encodingLength);return n[0]&=248,n[r]&=127,n[r]|=64,n})),a(s,"priv",(function(){return this.eddsa.decodeInt(this.privBytes())})),a(s,"hash",(function(){return this.eddsa.hash().update(this.secret()).digest()})),a(s,"messagePrefix",(function(){return this.hash().slice(this.eddsa.encodingLength)})),s.prototype.sign=function(t){return i(this._secret,"KeyPair can only verify"),this.eddsa.sign(t,this)},s.prototype.verify=function(t,e){return this.eddsa.verify(t,e,this)},s.prototype.getSecret=function(t){return i(this._secret,"KeyPair is public only"),n.encode(this.secret(),t)},s.prototype.getPublic=function(t){return n.encode(this.pubBytes(),t)},t.exports=s},8433:(t,e,r)=>{"use strict";function n(t){return n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},n(t)}var i=r(7799),o=r(1970),a=o.assert,s=o.cachedProperty,c=o.parseBytes;function u(t,e){this.eddsa=t,"object"!==n(e)&&(e=c(e)),Array.isArray(e)&&(a(e.length===2*t.encodingLength,"Signature has invalid size"),e={R:e.slice(0,t.encodingLength),S:e.slice(t.encodingLength)}),a(e.R&&e.S,"Signature without R or S"),t.isPoint(e.R)&&(this._R=e.R),e.S instanceof i&&(this._S=e.S),this._Rencoded=Array.isArray(e.R)?e.R:e.Rencoded,this._Sencoded=Array.isArray(e.S)?e.S:e.Sencoded}s(u,"S",(function(){return this.eddsa.decodeInt(this.Sencoded())})),s(u,"R",(function(){return this.eddsa.decodePoint(this.Rencoded())})),s(u,"Rencoded",(function(){return this.eddsa.encodePoint(this.R())})),s(u,"Sencoded",(function(){return this.eddsa.encodeInt(this.S())})),u.prototype.toBytes=function(){return this.Rencoded().concat(this.Sencoded())},u.prototype.toHex=function(){return 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F=/^[0-9A-F]{32}$/i,V=/^[0-9A-F]{8}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{12}$/i;class z extends U{constructor(t){let e;if(null==t)e=z.generate();else if(t instanceof z)e=B.toLocalBufferType(new Uint8Array(t.buffer));else if(ArrayBuffer.isView(t)&&16===t.byteLength)e=B.toLocalBufferType(t);else{if("string"!=typeof t)throw new g("Argument passed in UUID constructor must be a UUID, a 16 byte Buffer or a 32/36 character hex string (dashes excluded/included, format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx).");e=z.bytesFromString(t)}super(e,4)}get id(){return this.buffer}set id(t){this.buffer=t}toHexString(t=!0){return t?[B.toHex(this.buffer.subarray(0,4)),B.toHex(this.buffer.subarray(4,6)),B.toHex(this.buffer.subarray(6,8)),B.toHex(this.buffer.subarray(8,10)),B.toHex(this.buffer.subarray(10,16))].join("-"):B.toHex(this.buffer)}toString(t){return"hex"===t?B.toHex(this.id):"base64"===t?B.toBase64(this.id):this.toHexString()}toJSON(){return this.toHexString()}equals(t){if(!t)return!1;if(t instanceof z)return B.equals(t.id,this.id);try{return B.equals(new z(t).id,this.id)}catch{return!1}}toBinary(){return new U(this.id,U.SUBTYPE_UUID)}static generate(){const t=B.randomBytes(16);return t[6]=15&t[6]|64,t[8]=63&t[8]|128,t}static isValid(t){return!!t&&("string"==typeof t?z.isValidUUIDString(t):o(t)?16===t.byteLength:"Binary"===t._bsontype&&t.sub_type===this.SUBTYPE_UUID&&16===t.buffer.byteLength)}static createFromHexString(t){const e=z.bytesFromString(t);return new z(e)}static createFromBase64(t){return new z(B.fromBase64(t))}static bytesFromString(t){if(!z.isValidUUIDString(t))throw new g("UUID string representation must be 32 hex digits or canonical hyphenated representation");return B.fromHex(t.replace(/-/g,""))}static isValidUUIDString(t){return F.test(t)||V.test(t)}inspect(t,e,r){return r??=f,`new UUID(${r(this.toHexString(),e)})`}}class K extends R{get _bsontype(){return"Code"}constructor(t,e){super(),this.code=t.toString(),this.scope=e??null}toJSON(){return null!=this.scope?{code:this.code,scope:this.scope}:{code:this.code}}toExtendedJSON(){return this.scope?{$code:this.code,$scope:this.scope}:{$code:this.code}}static fromExtendedJSON(t){return new K(t.$code,t.$scope)}inspect(t,e,r){r??=f;let n=r(this.code,e);const i=n.includes("\n");return null!=this.scope&&(n+=`,${i?"\n":" "}${r(this.scope,e)}`),`new Code(${i?"\n":""}${n}${i&&null===this.scope?"\n":""})`}}function H(t){return null!=t&&"object"==typeof t&&"$id"in t&&null!=t.$id&&"$ref"in t&&"string"==typeof t.$ref&&(!("$db"in t)||"$db"in t&&"string"==typeof t.$db)}class W extends R{get _bsontype(){return"DBRef"}constructor(t,e,r,n){super();const i=t.split(".");2===i.length&&(r=i.shift(),t=i.shift()),this.collection=t,this.oid=e,this.db=r,this.fields=n||{}}get namespace(){return this.collection}set namespace(t){this.collection=t}toJSON(){const t=Object.assign({$ref:this.collection,$id:this.oid},this.fields);return null!=this.db&&(t.$db=this.db),t}toExtendedJSON(t){t=t||{};let e={$ref:this.collection,$id:this.oid};return t.legacy||(this.db&&(e.$db=this.db),e=Object.assign(e,this.fields)),e}static fromExtendedJSON(t){const e=Object.assign({},t);return delete e.$ref,delete e.$id,delete e.$db,new W(t.$ref,t.$id,t.$db,e)}inspect(t,e,r){r??=f;const n=[r(this.namespace,e),r(this.oid,e),...this.db?[r(this.db,e)]:[],...Object.keys(this.fields).length>0?[r(this.fields,e)]:[]];return n[1]=r===f?`new ObjectId(${n[1]})`:n[1],`new DBRef(${n.join(", ")})`}}function J(t){if(""===t)return t;let e=0;const r="-"===t[e],n="+"===t[e];(n||r)&&(e+=1);let i=!1;for(;e<t.length&&"0"===t[e];++e)i=!0;return i?`${r?"-":""}${t.length===e?"0":t.slice(e)}`:n?t.slice(1):t}let G;try{G=new WebAssembly.Instance(new WebAssembly.Module(new Uint8Array([0,97,115,109,1,0,0,0,1,13,2,96,0,1,127,96,4,127,127,127,127,1,127,3,7,6,0,1,1,1,1,1,6,6,1,127,1,65,0,11,7,50,6,3,109,117,108,0,1,5,100,105,118,95,115,0,2,5,100,105,118,95,117,0,3,5,114,101,109,95,115,0,4,5,114,101,109,95,117,0,5,8,103,101,116,95,104,105,103,104,0,0,10,191,1,6,4,0,35,0,11,36,1,1,126,32,0,173,32,1,173,66,32,134,132,32,2,173,32,3,173,66,32,134,132,126,34,4,66,32,135,167,36,0,32,4,167,11,36,1,1,126,32,0,173,32,1,173,66,32,134,132,32,2,173,32,3,173,66,32,134,132,127,34,4,66,32,135,167,36,0,32,4,167,11,36,1,1,126,32,0,173,32,1,173,66,32,134,132,32,2,173,32,3,173,66,32,134,132,128,34,4,66,32,135,167,36,0,32,4,167,11,36,1,1,126,32,0,173,32,1,173,66,32,134,132,32,2,173,32,3,173,66,32,134,132,129,34,4,66,32,135,167,36,0,32,4,167,11,36,1,1,126,32,0,173,32,1,173,66,32,134,132,32,2,173,32,3,173,66,32,134,132,130,34,4,66,32,135,167,36,0,32,4,167,11])),{}).exports}catch{}const Y=4294967296,Q=0x10000000000000000,X=Q/2,Z={},tt={},et=/^(\+?0|(\+|-)?[1-9][0-9]*)$/;class rt extends R{get _bsontype(){return"Long"}get __isLong__(){return!0}constructor(t=0,e,r){super();const n="boolean"==typeof e?e:Boolean(r),i="number"==typeof e?e:0,o="string"==typeof t?rt.fromString(t,n):"bigint"==typeof t?rt.fromBigInt(t,n):{low:0|t,high:0|i,unsigned:n};this.low=o.low,this.high=o.high,this.unsigned=o.unsigned}static fromBits(t,e,r){return new rt(t,e,r)}static fromInt(t,e){let r,n,i;return e?(i=0<=(t>>>=0)&&t<256)&&(n=tt[t],n)?n:(r=rt.fromBits(t,(0|t)<0?-1:0,!0),i&&(tt[t]=r),r):(i=-128<=(t|=0)&&t<128)&&(n=Z[t],n)?n:(r=rt.fromBits(t,t<0?-1:0,!1),i&&(Z[t]=r),r)}static fromNumber(t,e){if(isNaN(t))return e?rt.UZERO:rt.ZERO;if(e){if(t<0)return rt.UZERO;if(t>=Q)return rt.MAX_UNSIGNED_VALUE}else{if(t<=-X)return rt.MIN_VALUE;if(t+1>=X)return rt.MAX_VALUE}return t<0?rt.fromNumber(-t,e).neg():rt.fromBits(t%Y|0,t/Y|0,e)}static fromBigInt(t,e){const r=BigInt(4294967295),n=BigInt(32);return new rt(Number(t&r),Number(t>>n&r),e)}static _fromString(t,e,r){if(0===t.length)throw new g("empty string");if(r<2||36<r)throw new g("radix");let n;if((n=t.indexOf("-"))>0)throw new g("interior hyphen");if(0===n)return rt._fromString(t.substring(1),e,r).neg();const i=rt.fromNumber(Math.pow(r,8));let o=rt.ZERO;for(let e=0;e<t.length;e+=8){const n=Math.min(8,t.length-e),a=parseInt(t.substring(e,e+n),r);if(n<8){const t=rt.fromNumber(Math.pow(r,n));o=o.mul(t).add(rt.fromNumber(a))}else o=o.mul(i),o=o.add(rt.fromNumber(a))}return o.unsigned=e,o}static fromStringStrict(t,e,r){let n=!1;if("number"==typeof e?(r=e,e=!1):n=!!e,r??=10,t.trim()!==t)throw new g(`Input: '${t}' contains leading and/or trailing whitespace`);if(!function(t,e){const r="0123456789abcdefghijklmnopqrstuvwxyz".slice(0,e=e??10);return!new RegExp(`[^-+${r}]`,"i").test(t)&&t}(t,r))throw new g(`Input: '${t}' contains invalid characters for radix: ${r}`);const i=J(t),o=rt._fromString(i,n,r);if(o.toString(r).toLowerCase()!==i.toLowerCase())throw new g(`Input: ${t} is not representable as ${o.unsigned?"an unsigned":"a signed"} 64-bit Long ${null!=r?`with radix: ${r}`:""}`);return o}static fromString(t,e,r){let n=!1;return"number"==typeof e?(r=e,e=!1):n=!!e,r??=10,"NaN"===t&&r<24||("Infinity"===t||"+Infinity"===t||"-Infinity"===t)&&r<35?rt.ZERO:rt._fromString(t,n,r)}static fromBytes(t,e,r){return r?rt.fromBytesLE(t,e):rt.fromBytesBE(t,e)}static fromBytesLE(t,e){return new rt(t[0]|t[1]<<8|t[2]<<16|t[3]<<24,t[4]|t[5]<<8|t[6]<<16|t[7]<<24,e)}static fromBytesBE(t,e){return new rt(t[4]<<24|t[5]<<16|t[6]<<8|t[7],t[0]<<24|t[1]<<16|t[2]<<8|t[3],e)}static isLong(t){return null!=t&&"object"==typeof t&&"__isLong__"in t&&!0===t.__isLong__}static fromValue(t,e){return"number"==typeof t?rt.fromNumber(t,e):"string"==typeof t?rt.fromString(t,e):rt.fromBits(t.low,t.high,"boolean"==typeof e?e:t.unsigned)}add(t){rt.isLong(t)||(t=rt.fromValue(t));const e=this.high>>>16,r=65535&this.high,n=this.low>>>16,i=65535&this.low,o=t.high>>>16,a=65535&t.high,s=t.low>>>16;let c=0,u=0,f=0,l=0;return l+=i+(65535&t.low),f+=l>>>16,l&=65535,f+=n+s,u+=f>>>16,f&=65535,u+=r+a,c+=u>>>16,u&=65535,c+=e+o,c&=65535,rt.fromBits(f<<16|l,c<<16|u,this.unsigned)}and(t){return rt.isLong(t)||(t=rt.fromValue(t)),rt.fromBits(this.low&t.low,this.high&t.high,this.unsigned)}compare(t){if(rt.isLong(t)||(t=rt.fromValue(t)),this.eq(t))return 0;const e=this.isNegative(),r=t.isNegative();return e&&!r?-1:!e&&r?1:this.unsigned?t.high>>>0>this.high>>>0||t.high===this.high&&t.low>>>0>this.low>>>0?-1:1:this.sub(t).isNegative()?-1:1}comp(t){return this.compare(t)}divide(t){if(rt.isLong(t)||(t=rt.fromValue(t)),t.isZero())throw new g("division by zero");if(G){if(!this.unsigned&&-2147483648===this.high&&-1===t.low&&-1===t.high)return this;const e=(this.unsigned?G.div_u:G.div_s)(this.low,this.high,t.low,t.high);return rt.fromBits(e,G.get_high(),this.unsigned)}if(this.isZero())return this.unsigned?rt.UZERO:rt.ZERO;let e,r,n;if(this.unsigned){if(t.unsigned||(t=t.toUnsigned()),t.gt(this))return rt.UZERO;if(t.gt(this.shru(1)))return rt.UONE;n=rt.UZERO}else{if(this.eq(rt.MIN_VALUE))return t.eq(rt.ONE)||t.eq(rt.NEG_ONE)?rt.MIN_VALUE:t.eq(rt.MIN_VALUE)?rt.ONE:(e=this.shr(1).div(t).shl(1),e.eq(rt.ZERO)?t.isNegative()?rt.ONE:rt.NEG_ONE:(r=this.sub(t.mul(e)),n=e.add(r.div(t)),n));if(t.eq(rt.MIN_VALUE))return this.unsigned?rt.UZERO:rt.ZERO;if(this.isNegative())return t.isNegative()?this.neg().div(t.neg()):this.neg().div(t).neg();if(t.isNegative())return this.div(t.neg()).neg();n=rt.ZERO}for(r=this;r.gte(t);){e=Math.max(1,Math.floor(r.toNumber()/t.toNumber()));const i=Math.ceil(Math.log(e)/Math.LN2),o=i<=48?1:Math.pow(2,i-48);let a=rt.fromNumber(e),s=a.mul(t);for(;s.isNegative()||s.gt(r);)e-=o,a=rt.fromNumber(e,this.unsigned),s=a.mul(t);a.isZero()&&(a=rt.ONE),n=n.add(a),r=r.sub(s)}return n}div(t){return this.divide(t)}equals(t){return rt.isLong(t)||(t=rt.fromValue(t)),(this.unsigned===t.unsigned||this.high>>>31!=1||t.high>>>31!=1)&&this.high===t.high&&this.low===t.low}eq(t){return this.equals(t)}getHighBits(){return this.high}getHighBitsUnsigned(){return this.high>>>0}getLowBits(){return this.low}getLowBitsUnsigned(){return this.low>>>0}getNumBitsAbs(){if(this.isNegative())return this.eq(rt.MIN_VALUE)?64:this.neg().getNumBitsAbs();const t=0!==this.high?this.high:this.low;let e;for(e=31;e>0&&!(t&1<<e);e--);return 0!==this.high?e+33:e+1}greaterThan(t){return this.comp(t)>0}gt(t){return this.greaterThan(t)}greaterThanOrEqual(t){return this.comp(t)>=0}gte(t){return this.greaterThanOrEqual(t)}ge(t){return this.greaterThanOrEqual(t)}isEven(){return!(1&this.low)}isNegative(){return!this.unsigned&&this.high<0}isOdd(){return!(1&~this.low)}isPositive(){return this.unsigned||this.high>=0}isZero(){return 0===this.high&&0===this.low}lessThan(t){return this.comp(t)<0}lt(t){return this.lessThan(t)}lessThanOrEqual(t){return this.comp(t)<=0}lte(t){return this.lessThanOrEqual(t)}modulo(t){if(rt.isLong(t)||(t=rt.fromValue(t)),G){const e=(this.unsigned?G.rem_u:G.rem_s)(this.low,this.high,t.low,t.high);return rt.fromBits(e,G.get_high(),this.unsigned)}return this.sub(this.div(t).mul(t))}mod(t){return this.modulo(t)}rem(t){return this.modulo(t)}multiply(t){if(this.isZero())return rt.ZERO;if(rt.isLong(t)||(t=rt.fromValue(t)),G){const e=G.mul(this.low,this.high,t.low,t.high);return rt.fromBits(e,G.get_high(),this.unsigned)}if(t.isZero())return rt.ZERO;if(this.eq(rt.MIN_VALUE))return t.isOdd()?rt.MIN_VALUE:rt.ZERO;if(t.eq(rt.MIN_VALUE))return this.isOdd()?rt.MIN_VALUE:rt.ZERO;if(this.isNegative())return t.isNegative()?this.neg().mul(t.neg()):this.neg().mul(t).neg();if(t.isNegative())return this.mul(t.neg()).neg();if(this.lt(rt.TWO_PWR_24)&&t.lt(rt.TWO_PWR_24))return rt.fromNumber(this.toNumber()*t.toNumber(),this.unsigned);const e=this.high>>>16,r=65535&this.high,n=this.low>>>16,i=65535&this.low,o=t.high>>>16,a=65535&t.high,s=t.low>>>16,c=65535&t.low;let u=0,f=0,l=0,h=0;return h+=i*c,l+=h>>>16,h&=65535,l+=n*c,f+=l>>>16,l&=65535,l+=i*s,f+=l>>>16,l&=65535,f+=r*c,u+=f>>>16,f&=65535,f+=n*s,u+=f>>>16,f&=65535,f+=i*a,u+=f>>>16,f&=65535,u+=e*c+r*s+n*a+i*o,u&=65535,rt.fromBits(l<<16|h,u<<16|f,this.unsigned)}mul(t){return this.multiply(t)}negate(){return!this.unsigned&&this.eq(rt.MIN_VALUE)?rt.MIN_VALUE:this.not().add(rt.ONE)}neg(){return this.negate()}not(){return rt.fromBits(~this.low,~this.high,this.unsigned)}notEquals(t){return!this.equals(t)}neq(t){return this.notEquals(t)}ne(t){return this.notEquals(t)}or(t){return rt.isLong(t)||(t=rt.fromValue(t)),rt.fromBits(this.low|t.low,this.high|t.high,this.unsigned)}shiftLeft(t){return rt.isLong(t)&&(t=t.toInt()),0==(t&=63)?this:t<32?rt.fromBits(this.low<<t,this.high<<t|this.low>>>32-t,this.unsigned):rt.fromBits(0,this.low<<t-32,this.unsigned)}shl(t){return this.shiftLeft(t)}shiftRight(t){return rt.isLong(t)&&(t=t.toInt()),0==(t&=63)?this:t<32?rt.fromBits(this.low>>>t|this.high<<32-t,this.high>>t,this.unsigned):rt.fromBits(this.high>>t-32,this.high>=0?0:-1,this.unsigned)}shr(t){return this.shiftRight(t)}shiftRightUnsigned(t){if(rt.isLong(t)&&(t=t.toInt()),0==(t&=63))return this;{const e=this.high;if(t<32){const r=this.low;return rt.fromBits(r>>>t|e<<32-t,e>>>t,this.unsigned)}return 32===t?rt.fromBits(e,0,this.unsigned):rt.fromBits(e>>>t-32,0,this.unsigned)}}shr_u(t){return this.shiftRightUnsigned(t)}shru(t){return this.shiftRightUnsigned(t)}subtract(t){return rt.isLong(t)||(t=rt.fromValue(t)),this.add(t.neg())}sub(t){return this.subtract(t)}toInt(){return this.unsigned?this.low>>>0:this.low}toNumber(){return this.unsigned?(this.high>>>0)*Y+(this.low>>>0):this.high*Y+(this.low>>>0)}toBigInt(){return BigInt(this.toString())}toBytes(t){return t?this.toBytesLE():this.toBytesBE()}toBytesLE(){const t=this.high,e=this.low;return[255&e,e>>>8&255,e>>>16&255,e>>>24,255&t,t>>>8&255,t>>>16&255,t>>>24]}toBytesBE(){const t=this.high,e=this.low;return[t>>>24,t>>>16&255,t>>>8&255,255&t,e>>>24,e>>>16&255,e>>>8&255,255&e]}toSigned(){return this.unsigned?rt.fromBits(this.low,this.high,!1):this}toString(t){if((t=t||10)<2||36<t)throw new g("radix");if(this.isZero())return"0";if(this.isNegative()){if(this.eq(rt.MIN_VALUE)){const e=rt.fromNumber(t),r=this.div(e),n=r.mul(e).sub(this);return r.toString(t)+n.toInt().toString(t)}return"-"+this.neg().toString(t)}const e=rt.fromNumber(Math.pow(t,6),this.unsigned);let r=this,n="";for(;;){const i=r.div(e);let o=(r.sub(i.mul(e)).toInt()>>>0).toString(t);if(r=i,r.isZero())return o+n;for(;o.length<6;)o="0"+o;n=""+o+n}}toUnsigned(){return this.unsigned?this:rt.fromBits(this.low,this.high,!0)}xor(t){return rt.isLong(t)||(t=rt.fromValue(t)),rt.fromBits(this.low^t.low,this.high^t.high,this.unsigned)}eqz(){return this.isZero()}le(t){return this.lessThanOrEqual(t)}toExtendedJSON(t){return t&&t.relaxed?this.toNumber():{$numberLong:this.toString()}}static fromExtendedJSON(t,e){const{useBigInt64:r=!1,relaxed:n=!0}={...e};if(t.$numberLong.length>20)throw new g("$numberLong string is too long");if(!et.test(t.$numberLong))throw new g(`$numberLong string "${t.$numberLong}" is in an invalid format`);if(r){const e=BigInt(t.$numberLong);return BigInt.asIntN(64,e)}const i=rt.fromString(t.$numberLong);return n?i.toNumber():i}inspect(t,e,r){return r??=f,`new Long(${r(this.toString(),e)}${this.unsigned?`, ${r(this.unsigned,e)}`:""})`}}rt.TWO_PWR_24=rt.fromInt(1<<24),rt.MAX_UNSIGNED_VALUE=rt.fromBits(-1,-1,!0),rt.ZERO=rt.fromInt(0),rt.UZERO=rt.fromInt(0,!0),rt.ONE=rt.fromInt(1),rt.UONE=rt.fromInt(1,!0),rt.NEG_ONE=rt.fromInt(-1),rt.MAX_VALUE=rt.fromBits(-1,2147483647,!1),rt.MIN_VALUE=rt.fromBits(0,-2147483648,!1);const nt=/^(\+|-)?(\d+|(\d*\.\d*))?(E|e)?([-+])?(\d+)?$/,it=/^(\+|-)?(Infinity|inf)$/i,ot=/^(\+|-)?NaN$/i,at=6111,st=-6176,ct=B.fromNumberArray([124,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0].reverse()),ut=B.fromNumberArray([248,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0].reverse()),ft=B.fromNumberArray([120,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0].reverse()),lt=/^([-+])?(\d+)?$/;function ht(t){return!isNaN(parseInt(t,10))}function pt(t){const e=rt.fromNumber(1e9);let r=rt.fromNumber(0);if(!(t.parts[0]||t.parts[1]||t.parts[2]||t.parts[3]))return{quotient:t,rem:r};for(let n=0;n<=3;n++)r=r.shiftLeft(32),r=r.add(new rt(t.parts[n],0)),t.parts[n]=r.div(e).low,r=r.modulo(e);return{quotient:t,rem:r}}function dt(t,e){throw new g(`"${t}" is not a valid Decimal128 string - ${e}`)}class yt extends R{get _bsontype(){return"Decimal128"}constructor(t){if(super(),"string"==typeof t)this.bytes=yt.fromString(t).bytes;else{if(!(t instanceof Uint8Array||o(t)))throw new g("Decimal128 must take a Buffer or string");if(16!==t.byteLength)throw new g("Decimal128 must take a Buffer of 16 bytes");this.bytes=t}}static fromString(t){return yt._fromString(t,{allowRounding:!1})}static fromStringWithRounding(t){return yt._fromString(t,{allowRounding:!0})}static _fromString(t,e){let r=!1,n=!1,i=!1,o=!1,a=0,s=0,c=0,u=0,f=0;const l=[0];let h=0,p=0,d=0,y=0,b=new rt(0,0),m=new rt(0,0),v=0,_=0;if(t.length>=7e3)throw new g(t+" not a valid Decimal128 string");const w=t.match(nt),S=t.match(it),O=t.match(ot);if(!w&&!S&&!O||0===t.length)throw new g(t+" not a valid Decimal128 string");if(w){const e=w[2],r=w[4],n=w[5],i=w[6];r&&void 0===i&&dt(t,"missing exponent power"),r&&void 0===e&&dt(t,"missing exponent base"),void 0===r&&(n||i)&&dt(t,"missing e before exponent")}if("+"!==t[_]&&"-"!==t[_]||(n=!0,r="-"===t[_++]),!ht(t[_])&&"."!==t[_]){if("i"===t[_]||"I"===t[_])return new yt(r?ut:ft);if("N"===t[_])return new yt(ct)}for(;ht(t[_])||"."===t[_];)"."!==t[_]?(h<34&&("0"!==t[_]||o)&&(o||(f=s),o=!0,l[p++]=parseInt(t[_],10),h+=1),o&&(c+=1),i&&(u+=1),s+=1,_+=1):(i&&dt(t,"contains multiple periods"),i=!0,_+=1);if(i&&!s)throw new g(t+" not a valid Decimal128 string");if("e"===t[_]||"E"===t[_]){const e=t.substr(++_).match(lt);if(!e||!e[2])return new yt(ct);y=parseInt(e[0],10),_+=e[0].length}if(t[_])return new yt(ct);if(h){if(d=h-1,a=c,1!==a)for(;"0"===t[f+a-1+Number(n)+Number(i)];)a-=1}else l[0]=0,c=1,h=1,a=0;for(y<=u&&u>y+16384?y=st:y-=u;y>at;){if(d+=1,d>=34){if(0===a){y=at;break}dt(t,"overflow")}y-=1}if(e.allowRounding){for(;y<st||h<c;){if(0===d&&a<h){y=st,a=0;break}if(h<c?c-=1:d-=1,y<at)y+=1;else{if(l.join("").match(/^0+$/)){y=at;break}dt(t,"overflow")}}if(d+1<a){let e=s;i&&(f+=1,e+=1),n&&(f+=1,e+=1);const o=parseInt(t[f+d+1],10);let a=0;if(o>=5&&(a=1,5===o)){a=l[d]%2==1?1:0;for(let r=f+d+2;r<e;r++)if(parseInt(t[r],10)){a=1;break}}if(a){let t=d;for(;t>=0&&++l[t]>9;t--)if(l[t]=0,0===t){if(!(y<at))return new yt(r?ut:ft);y+=1,l[t]=1}}}}else{for(;y<st||h<c;){if(0===d){if(0===a){y=st;break}dt(t,"exponent underflow")}h<c?("0"!==t[c-1+Number(n)+Number(i)]&&0!==a&&dt(t,"inexact rounding"),c-=1):(0!==l[d]&&dt(t,"inexact rounding"),d-=1),y<at?y+=1:dt(t,"overflow")}d+1<a&&(i&&(f+=1),n&&(f+=1),0!==parseInt(t[f+d+1],10)&&dt(t,"inexact rounding"))}if(b=rt.fromNumber(0),m=rt.fromNumber(0),0===a)b=rt.fromNumber(0),m=rt.fromNumber(0);else if(d<17){let t=0;for(m=rt.fromNumber(l[t++]),b=new rt(0,0);t<=d;t++)m=m.multiply(rt.fromNumber(10)),m=m.add(rt.fromNumber(l[t]))}else{let t=0;for(b=rt.fromNumber(l[t++]);t<=d-17;t++)b=b.multiply(rt.fromNumber(10)),b=b.add(rt.fromNumber(l[t]));for(m=rt.fromNumber(l[t++]);t<=d;t++)m=m.multiply(rt.fromNumber(10)),m=m.add(rt.fromNumber(l[t]))}const j=function(t,e){if(!t&&!e)return{high:rt.fromNumber(0),low:rt.fromNumber(0)};const r=t.shiftRightUnsigned(32),n=new rt(t.getLowBits(),0),i=e.shiftRightUnsigned(32),o=new rt(e.getLowBits(),0);let a=r.multiply(i),s=r.multiply(o);const c=n.multiply(i);let u=n.multiply(o);return a=a.add(s.shiftRightUnsigned(32)),s=new rt(s.getLowBits(),0).add(c).add(u.shiftRightUnsigned(32)),a=a.add(s.shiftRightUnsigned(32)),u=s.shiftLeft(32).add(new rt(u.getLowBits(),0)),{high:a,low:u}}(b,rt.fromString("100000000000000000"));j.low=j.low.add(m),function(t,e){const r=t.high>>>0,n=e.high>>>0;return r<n||r===n&&t.low>>>0<e.low>>>0}(j.low,m)&&(j.high=j.high.add(rt.fromNumber(1))),v=y+6176;const $={low:rt.fromNumber(0),high:rt.fromNumber(0)};j.high.shiftRightUnsigned(49).and(rt.fromNumber(1)).equals(rt.fromNumber(1))?($.high=$.high.or(rt.fromNumber(3).shiftLeft(61)),$.high=$.high.or(rt.fromNumber(v).and(rt.fromNumber(16383).shiftLeft(47))),$.high=$.high.or(j.high.and(rt.fromNumber(0x7fffffffffff)))):($.high=$.high.or(rt.fromNumber(16383&v).shiftLeft(49)),$.high=$.high.or(j.high.and(rt.fromNumber(562949953421311)))),$.low=j.low,r&&($.high=$.high.or(rt.fromString("9223372036854775808")));const E=B.allocateUnsafe(16);return _=0,E[_++]=255&$.low.low,E[_++]=$.low.low>>8&255,E[_++]=$.low.low>>16&255,E[_++]=$.low.low>>24&255,E[_++]=255&$.low.high,E[_++]=$.low.high>>8&255,E[_++]=$.low.high>>16&255,E[_++]=$.low.high>>24&255,E[_++]=255&$.high.low,E[_++]=$.high.low>>8&255,E[_++]=$.high.low>>16&255,E[_++]=$.high.low>>24&255,E[_++]=255&$.high.high,E[_++]=$.high.high>>8&255,E[_++]=$.high.high>>16&255,E[_++]=$.high.high>>24&255,new yt(E)}toString(){let t,e=0;const r=new Array(36);for(let t=0;t<r.length;t++)r[t]=0;let n,i,o,a=0,s=!1,c={parts:[0,0,0,0]};const u=[];a=0;const f=this.bytes,l=f[a++]|f[a++]<<8|f[a++]<<16|f[a++]<<24,h=f[a++]|f[a++]<<8|f[a++]<<16|f[a++]<<24,p=f[a++]|f[a++]<<8|f[a++]<<16|f[a++]<<24,d=f[a++]|f[a++]<<8|f[a++]<<16|f[a++]<<24;a=0,(new rt(l,h),new rt(p,d)).lessThan(rt.ZERO)&&u.push("-");const y=d>>26&31;if(y>>3==3){if(30===y)return u.join("")+"Infinity";if(31===y)return"NaN";t=d>>15&16383,n=8+(d>>14&1)}else n=d>>14&7,t=d>>17&16383;const b=t-6176;if(c.parts[0]=(16383&d)+((15&n)<<14),c.parts[1]=p,c.parts[2]=h,c.parts[3]=l,0===c.parts[0]&&0===c.parts[1]&&0===c.parts[2]&&0===c.parts[3])s=!0;else for(o=3;o>=0;o--){let t=0;const e=pt(c);if(c=e.quotient,t=e.rem.low,t)for(i=8;i>=0;i--)r[9*o+i]=t%10,t=Math.floor(t/10)}if(s)e=1,r[a]=0;else for(e=36;!r[a];)e-=1,a+=1;const m=e-1+b;if(m>=34||m<=-7||b>0){if(e>34)return u.push("0"),b>0?u.push(`E+${b}`):b<0&&u.push(`E${b}`),u.join("");u.push(`${r[a++]}`),e-=1,e&&u.push(".");for(let t=0;t<e;t++)u.push(`${r[a++]}`);u.push("E"),m>0?u.push(`+${m}`):u.push(`${m}`)}else if(b>=0)for(let t=0;t<e;t++)u.push(`${r[a++]}`);else{let t=e+b;if(t>0)for(let e=0;e<t;e++)u.push(`${r[a++]}`);else u.push("0");for(u.push(".");t++<0;)u.push("0");for(let n=0;n<e-Math.max(t-1,0);n++)u.push(`${r[a++]}`)}return u.join("")}toJSON(){return{$numberDecimal:this.toString()}}toExtendedJSON(){return{$numberDecimal:this.toString()}}static fromExtendedJSON(t){return yt.fromString(t.$numberDecimal)}inspect(t,e,r){return r??=f,`new Decimal128(${r(this.toString(),e)})`}}class bt extends R{get _bsontype(){return"Double"}constructor(t){super(),t instanceof Number&&(t=t.valueOf()),this.value=+t}static fromString(t){const e=Number(t);if("NaN"===t)return new bt(NaN);if("Infinity"===t)return new bt(1/0);if("-Infinity"===t)return new bt(-1/0);if(!Number.isFinite(e))throw new g(`Input: ${t} is not representable as a Double`);if(t.trim()!==t)throw new g(`Input: '${t}' contains whitespace`);if(""===t)throw new g("Input is an empty string");if(/[^-0-9.+eE]/.test(t))throw new g(`Input: '${t}' is not in decimal or exponential notation`);return new bt(e)}valueOf(){return this.value}toJSON(){return this.value}toString(t){return this.value.toString(t)}toExtendedJSON(t){return t&&(t.legacy||t.relaxed&&isFinite(this.value))?this.value:Object.is(Math.sign(this.value),-0)?{$numberDouble:"-0.0"}:{$numberDouble:Number.isInteger(this.value)?this.value.toFixed(1):this.value.toString()}}static fromExtendedJSON(t,e){const r=parseFloat(t.$numberDouble);return e&&e.relaxed?r:new bt(r)}inspect(t,e,r){return r??=f,`new Double(${r(this.value,e)})`}}class mt extends R{get _bsontype(){return"Int32"}constructor(t){super(),t instanceof Number&&(t=t.valueOf()),this.value=0|+t}static fromString(t){const e=J(t),r=Number(t);if(h<r)throw new g(`Input: '${t}' is larger than the maximum value for Int32`);if(p>r)throw new g(`Input: '${t}' is smaller than the minimum value for Int32`);if(!Number.isSafeInteger(r))throw new g(`Input: '${t}' is not a safe integer`);if(r.toString()!==e)throw new g(`Input: '${t}' is not a valid Int32 string`);return new mt(r)}valueOf(){return this.value}toString(t){return this.value.toString(t)}toJSON(){return this.value}toExtendedJSON(t){return t&&(t.relaxed||t.legacy)?this.value:{$numberInt:this.value.toString()}}static fromExtendedJSON(t,e){return e&&e.relaxed?parseInt(t.$numberInt,10):new mt(t.$numberInt)}inspect(t,e,r){return r??=f,`new Int32(${r(this.value,e)})`}}class vt extends R{get _bsontype(){return"MaxKey"}toExtendedJSON(){return{$maxKey:1}}static fromExtendedJSON(){return new vt}inspect(){return"new MaxKey()"}}class gt extends R{get _bsontype(){return"MinKey"}toExtendedJSON(){return{$minKey:1}}static fromExtendedJSON(){return new gt}inspect(){return"new MinKey()"}}let _t=null;const wt=new WeakMap;class St extends R{get _bsontype(){return"ObjectId"}constructor(t){let e;if(super(),"object"==typeof t&&t&&"id"in t){if("string"!=typeof t.id&&!ArrayBuffer.isView(t.id))throw new g("Argument passed in must have an id that is of type string or Buffer");e="toHexString"in t&&"function"==typeof t.toHexString?B.fromHex(t.toHexString()):t.id}else e=t;if(null==e||"number"==typeof e)this.buffer=St.generate("number"==typeof e?e:void 0);else if(ArrayBuffer.isView(e)&&12===e.byteLength)this.buffer=B.toLocalBufferType(e);else{if("string"!=typeof e)throw new g("Argument passed in does not match the accepted types");if(!St.validateHexString(e))throw new g("input must be a 24 character hex string, 12 byte Uint8Array, or an integer");this.buffer=B.fromHex(e),St.cacheHexString&&wt.set(this,e)}}get id(){return this.buffer}set id(t){this.buffer=t,St.cacheHexString&&wt.set(this,B.toHex(t))}static validateHexString(t){if(24!==t?.length)return!1;for(let e=0;e<24;e++){const r=t.charCodeAt(e);if(!(r>=48&&r<=57||r>=97&&r<=102||r>=65&&r<=70))return!1}return!0}toHexString(){if(St.cacheHexString){const t=wt.get(this);if(t)return t}const t=B.toHex(this.id);return St.cacheHexString&&wt.set(this,t),t}static getInc(){return St.index=(St.index+1)%16777215}static generate(t){"number"!=typeof t&&(t=Math.floor(Date.now()/1e3));const e=St.getInc(),r=B.allocateUnsafe(12);return C.setInt32BE(r,0,t),null===_t&&(_t=B.randomBytes(5)),r[4]=_t[0],r[5]=_t[1],r[6]=_t[2],r[7]=_t[3],r[8]=_t[4],r[11]=255&e,r[10]=e>>8&255,r[9]=e>>16&255,r}toString(t){return"base64"===t?B.toBase64(this.id):this.toHexString()}toJSON(){return this.toHexString()}static is(t){return null!=t&&"object"==typeof t&&"_bsontype"in t&&"ObjectId"===t._bsontype}equals(t){if(null==t)return!1;if(St.is(t))return this.buffer[11]===t.buffer[11]&&B.equals(this.buffer,t.buffer);if("string"==typeof t)return t.toLowerCase()===this.toHexString();if("object"==typeof t&&"function"==typeof t.toHexString){const e=t.toHexString(),r=this.toHexString();return"string"==typeof e&&e.toLowerCase()===r}return!1}getTimestamp(){const t=new Date,e=C.getUint32BE(this.buffer,0);return t.setTime(1e3*Math.floor(e)),t}static createPk(){return new St}serializeInto(t,e){return t[e]=this.buffer[0],t[e+1]=this.buffer[1],t[e+2]=this.buffer[2],t[e+3]=this.buffer[3],t[e+4]=this.buffer[4],t[e+5]=this.buffer[5],t[e+6]=this.buffer[6],t[e+7]=this.buffer[7],t[e+8]=this.buffer[8],t[e+9]=this.buffer[9],t[e+10]=this.buffer[10],t[e+11]=this.buffer[11],12}static createFromTime(t){const e=B.allocate(12);for(let t=11;t>=4;t--)e[t]=0;return C.setInt32BE(e,0,t),new St(e)}static createFromHexString(t){if(24!==t?.length)throw new g("hex string must be 24 characters");return new St(B.fromHex(t))}static createFromBase64(t){if(16!==t?.length)throw new g("base64 string must be 16 characters");return new St(B.fromBase64(t))}static isValid(t){if(null==t)return!1;if("string"==typeof t)return St.validateHexString(t);try{return new St(t),!0}catch{return!1}}toExtendedJSON(){return this.toHexString?{$oid:this.toHexString()}:{$oid:this.toString("hex")}}static fromExtendedJSON(t){return new St(t.$oid)}isCached(){return St.cacheHexString&&wt.has(this)}inspect(t,e,r){return r??=f,`new ObjectId(${r(this.toHexString(),e)})`}}function Ot(t,e,r){let n=5;if(Array.isArray(t))for(let i=0;i<t.length;i++)n+=jt(i.toString(),t[i],e,!0,r);else{"function"==typeof t?.toBSON&&(t=t.toBSON());for(const i of Object.keys(t))n+=jt(i,t[i],e,!1,r)}return n}function jt(t,e,r=!1,n=!1,i=!1){switch("function"==typeof e?.toBSON&&(e=e.toBSON()),typeof e){case"string":return 1+B.utf8ByteLength(t)+1+4+B.utf8ByteLength(e)+1;case"number":return Math.floor(e)===e&&e>=m&&e<=b&&e>=p&&e<=h?(null!=t?B.utf8ByteLength(t)+1:0)+5:(null!=t?B.utf8ByteLength(t)+1:0)+9;case"undefined":return n||!i?(null!=t?B.utf8ByteLength(t)+1:0)+1:0;case"boolean":return(null!=t?B.utf8ByteLength(t)+1:0)+2;case"object":if(null!=e&&"string"==typeof e._bsontype&&6!==e[l])throw new _;if(null==e||"MinKey"===e._bsontype||"MaxKey"===e._bsontype)return(null!=t?B.utf8ByteLength(t)+1:0)+1;if("ObjectId"===e._bsontype)return(null!=t?B.utf8ByteLength(t)+1:0)+13;if(e instanceof Date||u(e))return(null!=t?B.utf8ByteLength(t)+1:0)+9;if(ArrayBuffer.isView(e)||e instanceof ArrayBuffer||a(e))return(null!=t?B.utf8ByteLength(t)+1:0)+6+e.byteLength;if("Long"===e._bsontype||"Double"===e._bsontype||"Timestamp"===e._bsontype)return(null!=t?B.utf8ByteLength(t)+1:0)+9;if("Decimal128"===e._bsontype)return(null!=t?B.utf8ByteLength(t)+1:0)+17;if("Code"===e._bsontype)return null!=e.scope&&Object.keys(e.scope).length>0?(null!=t?B.utf8ByteLength(t)+1:0)+1+4+4+B.utf8ByteLength(e.code.toString())+1+Ot(e.scope,r,i):(null!=t?B.utf8ByteLength(t)+1:0)+1+4+B.utf8ByteLength(e.code.toString())+1;if("Binary"===e._bsontype){const r=e;return r.sub_type===U.SUBTYPE_BYTE_ARRAY?(null!=t?B.utf8ByteLength(t)+1:0)+(r.position+1+4+1+4):(null!=t?B.utf8ByteLength(t)+1:0)+(r.position+1+4+1)}if("Symbol"===e._bsontype)return(null!=t?B.utf8ByteLength(t)+1:0)+B.utf8ByteLength(e.value)+4+1+1;if("DBRef"===e._bsontype){const n=Object.assign({$ref:e.collection,$id:e.oid},e.fields);return null!=e.db&&(n.$db=e.db),(null!=t?B.utf8ByteLength(t)+1:0)+1+Ot(n,r,i)}return e instanceof RegExp||s(e)?(null!=t?B.utf8ByteLength(t)+1:0)+1+B.utf8ByteLength(e.source)+1+(e.global?1:0)+(e.ignoreCase?1:0)+(e.multiline?1:0)+1:"BSONRegExp"===e._bsontype?(null!=t?B.utf8ByteLength(t)+1:0)+1+B.utf8ByteLength(e.pattern)+1+B.utf8ByteLength(e.options)+1:(null!=t?B.utf8ByteLength(t)+1:0)+Ot(e,r,i)+1;case"function":return r?(null!=t?B.utf8ByteLength(t)+1:0)+1+4+B.utf8ByteLength(e.toString())+1:0;case"bigint":return(null!=t?B.utf8ByteLength(t)+1:0)+9;case"symbol":return 0;default:throw new g("Unrecognized JS type: "+typeof e)}}St.index=Math.floor(16777215*Math.random());class $t extends R{get _bsontype(){return"BSONRegExp"}constructor(t,e){if(super(),this.pattern=t,this.options=(e??"").split("").sort().join(""),-1!==this.pattern.indexOf("\0"))throw new g(`BSON Regex patterns cannot contain null bytes, found: ${JSON.stringify(this.pattern)}`);if(-1!==this.options.indexOf("\0"))throw new g(`BSON Regex options cannot contain null bytes, found: ${JSON.stringify(this.options)}`);for(let t=0;t<this.options.length;t++)if("i"!==this.options[t]&&"m"!==this.options[t]&&"x"!==this.options[t]&&"l"!==this.options[t]&&"s"!==this.options[t]&&"u"!==this.options[t])throw new g(`The regular expression option [${this.options[t]}] is not supported`)}static parseOptions(t){return t?t.split("").sort().join(""):""}toExtendedJSON(t){return(t=t||{}).legacy?{$regex:this.pattern,$options:this.options}:{$regularExpression:{pattern:this.pattern,options:this.options}}}static fromExtendedJSON(t){if("$regex"in t){if("string"==typeof t.$regex)return new $t(t.$regex,$t.parseOptions(t.$options));if("BSONRegExp"===t.$regex._bsontype)return t}if("$regularExpression"in t)return new $t(t.$regularExpression.pattern,$t.parseOptions(t.$regularExpression.options));throw new g(`Unexpected BSONRegExp EJSON object form: ${JSON.stringify(t)}`)}inspect(t,e,r){const n=function(t){if(null!=t&&"object"==typeof t&&"stylize"in t&&"function"==typeof t.stylize)return t.stylize}(e)??(t=>t);return r??=f,`new BSONRegExp(${n(r(this.pattern),"regexp")}, ${n(r(this.options),"regexp")})`}}class Et extends R{get _bsontype(){return"BSONSymbol"}constructor(t){super(),this.value=t}valueOf(){return this.value}toString(){return this.value}toJSON(){return this.value}toExtendedJSON(){return{$symbol:this.value}}static fromExtendedJSON(t){return new Et(t.$symbol)}inspect(t,e,r){return r??=f,`new BSONSymbol(${r(this.value,e)})`}}const At=rt;class Pt extends At{get _bsontype(){return"Timestamp"}get i(){return this.low>>>0}get t(){return this.high>>>0}constructor(t){if(null==t)super(0,0,!0);else if("bigint"==typeof t)super(t,!0);else if(rt.isLong(t))super(t.low,t.high,!0);else{if("object"!=typeof t||!("t"in t)||!("i"in t))throw new g("A Timestamp can only be constructed with: bigint, Long, or { t: number; i: number }");{if("number"!=typeof t.t&&("object"!=typeof t.t||"Int32"!==t.t._bsontype))throw new g("Timestamp constructed from { t, i } must provide t as a number");if("number"!=typeof t.i&&("object"!=typeof t.i||"Int32"!==t.i._bsontype))throw new g("Timestamp constructed from { t, i } must provide i as a number");const e=Number(t.t),r=Number(t.i);if(e<0||Number.isNaN(e))throw new g("Timestamp constructed from { t, i } must provide a positive t");if(r<0||Number.isNaN(r))throw new g("Timestamp constructed from { t, i } must provide a positive i");if(e>4294967295)throw new g("Timestamp constructed from { t, i } must provide t equal or less than uint32 max");if(r>4294967295)throw new g("Timestamp constructed from { t, i } must provide i equal or less than uint32 max");super(r,e,!0)}}}toJSON(){return{$timestamp:this.toString()}}static fromInt(t){return new Pt(rt.fromInt(t,!0))}static fromNumber(t){return new Pt(rt.fromNumber(t,!0))}static fromBits(t,e){return new Pt({i:t,t:e})}static fromString(t,e){return new Pt(rt.fromString(t,!0,e))}toExtendedJSON(){return{$timestamp:{t:this.t,i:this.i}}}static fromExtendedJSON(t){const e=rt.isLong(t.$timestamp.i)?t.$timestamp.i.getLowBitsUnsigned():t.$timestamp.i,r=rt.isLong(t.$timestamp.t)?t.$timestamp.t.getLowBitsUnsigned():t.$timestamp.t;return new Pt({t:r,i:e})}inspect(t,e,r){return r??=f,`new Timestamp({ t: ${r(this.t,e)}, i: ${r(this.i,e)} })`}}Pt.MAX_VALUE=rt.MAX_UNSIGNED_VALUE;const xt=rt.fromNumber(b),kt=rt.fromNumber(m);function Mt(t,e,r){const n=(e=null==e?{}:e)&&e.index?e.index:0,i=C.getInt32LE(t,n);if(i<5)throw new g(`bson size must be >= 5, is ${i}`);if(e.allowObjectSmallerThanBufferSize&&t.length<i)throw new g(`buffer length ${t.length} must be >= bson size ${i}`);if(!e.allowObjectSmallerThanBufferSize&&t.length!==i)throw new g(`buffer length ${t.length} must === bson size ${i}`);if(i+n>t.byteLength)throw new g(`(bson size ${i} + options.index ${n} must be <= buffer length ${t.byteLength})`);if(0!==t[n+i-1])throw new g("One object, sized correctly, with a spot for an EOO, but the EOO isn't 0x00");return It(t,n,e,r)}const Tt=/^\$ref$|^\$id$|^\$db$/;function It(t,e,r,n=!1){const i=null==r.fieldsAsRaw?null:r.fieldsAsRaw,o=null!=r.raw&&r.raw,a="boolean"==typeof r.bsonRegExp&&r.bsonRegExp,s=r.promoteBuffers??!1,c=r.promoteLongs??!0,u=r.promoteValues??!0,f=r.useBigInt64??!1;if(f&&!u)throw new g("Must either request bigint or Long for int64 deserialization");if(f&&!c)throw new g("Must either request bigint or Long for int64 deserialization");let l,h,p=!0;const d=(null==r.validation?{utf8:!0}:r.validation).utf8;if("boolean"==typeof d)l=d;else{p=!1;const t=Object.keys(d).map((function(t){return d[t]}));if(0===t.length)throw new g("UTF-8 validation setting cannot be empty");if("boolean"!=typeof t[0])throw new g("Invalid UTF-8 validation option, must specify boolean values");if(l=t[0],!t.every((t=>t===l)))throw new g("Invalid UTF-8 validation option - keys must be all true or all false")}if(!p){h=new Set;for(const t of Object.keys(d))h.add(t)}const y=e;if(t.length<5)throw new g("corrupt bson message < 5 bytes long");const b=C.getInt32LE(t,e);if(e+=4,b<5||b>t.length)throw new g("corrupt bson message");const m=n?[]:{};let v=0,_=!n&&null;for(;;){const d=t[e++];if(0===d)break;let y=e;for(;0!==t[y]&&y<t.length;)y++;if(y>=t.byteLength)throw new g("Bad BSON Document: illegal CString");const b=n?v++:B.toUTF8(t,e,y,!1);let w,S=!0;if(S=p||h?.has(b)?l:!l,!1!==_&&"$"===b[0]&&(_=Tt.test(b)),e=y+1,2===d){const r=C.getInt32LE(t,e);if(e+=4,r<=0||r>t.length-e||0!==t[e+r-1])throw new g("bad string length in bson");w=B.toUTF8(t,e,e+r-1,S),e+=r}else if(7===d){const r=B.allocateUnsafe(12);for(let n=0;n<12;n++)r[n]=t[e+n];w=new St(r),e+=12}else if(16===d&&!1===u)w=new mt(C.getInt32LE(t,e)),e+=4;else if(16===d)w=C.getInt32LE(t,e),e+=4;else if(1===d)w=C.getFloat64LE(t,e),e+=8,!1===u&&(w=new bt(w));else if(9===d){const r=C.getInt32LE(t,e),n=C.getInt32LE(t,e+4);e+=8,w=new Date(new rt(r,n).toNumber())}else if(8===d){if(0!==t[e]&&1!==t[e])throw new g("illegal boolean type value");w=1===t[e++]}else if(3===d){const n=e,i=C.getInt32LE(t,e);if(i<=0||i>t.length-e)throw new g("bad embedded document length in bson");if(o)w=t.subarray(e,e+i);else{let e=r;p||(e={...r,validation:{utf8:S}}),w=It(t,n,e,!1)}e+=i}else if(4===d){const n=e,o=C.getInt32LE(t,e);let a=r;const s=e+o;if(i&&i[b]&&(a={...r,raw:!0}),p||(a={...a,validation:{utf8:S}}),w=It(t,n,a,!0),0!==t[(e+=o)-1])throw new g("invalid array terminator byte");if(e!==s)throw new g("corrupted array bson")}else if(6===d)w=void 0;else if(10===d)w=null;else if(18===d)if(f)w=C.getBigInt64LE(t,e),e+=8;else{const r=C.getInt32LE(t,e),n=C.getInt32LE(t,e+4);e+=8;const i=new rt(r,n);w=c&&!0===u&&i.lessThanOrEqual(xt)&&i.greaterThanOrEqual(kt)?i.toNumber():i}else if(19===d){const r=B.allocateUnsafe(16);for(let n=0;n<16;n++)r[n]=t[e+n];e+=16,w=new yt(r)}else if(5===d){let r=C.getInt32LE(t,e);e+=4;const n=r,i=t[e++];if(r<0)throw new g("Negative binary type element size found");if(r>t.byteLength)throw new g("Binary type size larger than document size");if(i===U.SUBTYPE_BYTE_ARRAY){if(r=C.getInt32LE(t,e),e+=4,r<0)throw new g("Negative binary type element size found for subtype 0x02");if(r>n-4)throw new g("Binary type with subtype 0x02 contains too long binary size");if(r<n-4)throw new g("Binary type with subtype 0x02 contains too short binary size")}s&&u?w=B.toLocalBufferType(t.subarray(e,e+r)):(w=new U(t.subarray(e,e+r),i),4===i&&z.isValid(w)&&(w=w.toUUID())),e+=r}else if(11===d&&!1===a){for(y=e;0!==t[y]&&y<t.length;)y++;if(y>=t.length)throw new g("Bad BSON Document: illegal CString");const r=B.toUTF8(t,e,y,!1);for(y=e=y+1;0!==t[y]&&y<t.length;)y++;if(y>=t.length)throw new g("Bad BSON Document: illegal CString");const n=B.toUTF8(t,e,y,!1);e=y+1;const i=new Array(n.length);for(y=0;y<n.length;y++)switch(n[y]){case"m":i[y]="m";break;case"s":i[y]="g";break;case"i":i[y]="i"}w=new RegExp(r,i.join(""))}else if(11===d&&!0===a){for(y=e;0!==t[y]&&y<t.length;)y++;if(y>=t.length)throw new g("Bad BSON Document: illegal CString");const r=B.toUTF8(t,e,y,!1);for(y=e=y+1;0!==t[y]&&y<t.length;)y++;if(y>=t.length)throw new g("Bad BSON Document: illegal CString");const n=B.toUTF8(t,e,y,!1);e=y+1,w=new $t(r,n)}else if(14===d){const r=C.getInt32LE(t,e);if(e+=4,r<=0||r>t.length-e||0!==t[e+r-1])throw new g("bad string length in bson");const n=B.toUTF8(t,e,e+r-1,S);w=u?n:new Et(n),e+=r}else if(17===d)w=new Pt({i:C.getUint32LE(t,e),t:C.getUint32LE(t,e+4)}),e+=8;else if(255===d)w=new gt;else if(127===d)w=new vt;else if(13===d){const r=C.getInt32LE(t,e);if(e+=4,r<=0||r>t.length-e||0!==t[e+r-1])throw new g("bad string length in bson");const n=B.toUTF8(t,e,e+r-1,S);w=new K(n),e+=r}else if(15===d){const n=C.getInt32LE(t,e);if(e+=4,n<13)throw new g("code_w_scope total size shorter minimum expected length");const i=C.getInt32LE(t,e);if(e+=4,i<=0||i>t.length-e||0!==t[e+i-1])throw new g("bad string length in bson");const o=B.toUTF8(t,e,e+i-1,S),a=e+=i,s=C.getInt32LE(t,e),c=It(t,a,r,!1);if(e+=s,n<8+s+i)throw new g("code_w_scope total size is too short, truncating scope");if(n>8+s+i)throw new g("code_w_scope total size is too long, clips outer document");w=new K(o,c)}else{if(12!==d)throw new g(`Detected unknown BSON type ${d.toString(16)} for fieldname "${b}"`);{const r=C.getInt32LE(t,e);if(e+=4,r<=0||r>t.length-e||0!==t[e+r-1])throw new g("bad string length in bson");const n=B.toUTF8(t,e,e+r-1,S);e+=r;const i=B.allocateUnsafe(12);for(let r=0;r<12;r++)i[r]=t[e+r];const o=new St(i);e+=12,w=new W(n,o)}}"__proto__"===b?Object.defineProperty(m,b,{value:w,writable:!0,enumerable:!0,configurable:!0}):m[b]=w}if(b!==e-y){if(n)throw new g("corrupt array bson");throw new g("corrupt object bson")}if(!_)return m;if(H(m)){const t=Object.assign({},m);return delete t.$ref,delete t.$id,delete t.$db,new W(m.$ref,m.$id,m.$db,t)}return m}const Bt=/\x00/,Rt=new Set(["$db","$ref","$id","$clusterTime"]);function Nt(t,e,r,n){t[n++]=2,t[(n=n+B.encodeUTF8Into(t,e,n)+1)-1]=0;const i=B.encodeUTF8Into(t,r,n+4);return C.setInt32LE(t,n,i+1),n=n+4+i,t[n++]=0,n}function Dt(t,e,r,n){const i=!Object.is(r,-0)&&Number.isSafeInteger(r)&&r<=h&&r>=p?16:1;return t[n++]=i,n+=B.encodeUTF8Into(t,e,n),t[n++]=0,n+(16===i?C.setInt32LE(t,n,r):C.setFloat64LE(t,n,r))}function Lt(t,e,r,n){return t[n++]=18,n+=B.encodeUTF8Into(t,e,n),t[n++]=0,n+C.setBigInt64LE(t,n,r)}function Ct(t,e,r,n){return t[n++]=10,n+=B.encodeUTF8Into(t,e,n),t[n++]=0,n}function Ut(t,e,r,n){return t[n++]=8,n+=B.encodeUTF8Into(t,e,n),t[n++]=0,t[n++]=r?1:0,n}function qt(t,e,r,n){t[n++]=9,n+=B.encodeUTF8Into(t,e,n),t[n++]=0;const i=rt.fromNumber(r.getTime()),o=i.getLowBits(),a=i.getHighBits();return(n+=C.setInt32LE(t,n,o))+C.setInt32LE(t,n,a)}function Ft(t,e,r,n){if(t[n++]=11,n+=B.encodeUTF8Into(t,e,n),t[n++]=0,r.source&&null!=r.source.match(Bt))throw new g("value "+r.source+" must not contain null bytes");return n+=B.encodeUTF8Into(t,r.source,n),t[n++]=0,r.ignoreCase&&(t[n++]=105),r.global&&(t[n++]=115),r.multiline&&(t[n++]=109),t[n++]=0,n}function Vt(t,e,r,n){if(t[n++]=11,n+=B.encodeUTF8Into(t,e,n),t[n++]=0,null!=r.pattern.match(Bt))throw new g("pattern "+r.pattern+" must not contain null bytes");n+=B.encodeUTF8Into(t,r.pattern,n),t[n++]=0;const i=r.options.split("").sort().join("");return n+=B.encodeUTF8Into(t,i,n),t[n++]=0,n}function zt(t,e,r,n){return null===r?t[n++]=10:"MinKey"===r._bsontype?t[n++]=255:t[n++]=127,n+=B.encodeUTF8Into(t,e,n),t[n++]=0,n}function Kt(t,e,r,n){return t[n++]=7,n+=B.encodeUTF8Into(t,e,n),t[n++]=0,n+r.serializeInto(t,n)}function Ht(t,e,r,n){t[n++]=5,n+=B.encodeUTF8Into(t,e,n),t[n++]=0;const i=r.length;if(n+=C.setInt32LE(t,n,i),t[n++]=0,i<=16)for(let e=0;e<i;e++)t[n+e]=r[e];else t.set(r,n);return n+i}function Wt(t,e,r,n,i,o,a,s,c){if(c.has(r))throw new g("Cannot convert circular structure to BSON");c.add(r),t[n++]=Array.isArray(r)?4:3,n+=B.encodeUTF8Into(t,e,n),t[n++]=0;const u=ne(t,r,i,n,o+1,a,s,c);return c.delete(r),u}function Jt(t,e,r,n){t[n++]=19,n+=B.encodeUTF8Into(t,e,n),t[n++]=0;for(let e=0;e<16;e++)t[n+e]=r.bytes[e];return n+16}function Gt(t,e,r,n){t[n++]="Long"===r._bsontype?18:17,n+=B.encodeUTF8Into(t,e,n),t[n++]=0;const i=r.getLowBits(),o=r.getHighBits();return(n+=C.setInt32LE(t,n,i))+C.setInt32LE(t,n,o)}function Yt(t,e,r,n){return r=r.valueOf(),t[n++]=16,n+=B.encodeUTF8Into(t,e,n),t[n++]=0,n+C.setInt32LE(t,n,r)}function Qt(t,e,r,n){return t[n++]=1,n+=B.encodeUTF8Into(t,e,n),t[n++]=0,n+C.setFloat64LE(t,n,r.value)}function Xt(t,e,r,n){t[n++]=13,n+=B.encodeUTF8Into(t,e,n),t[n++]=0;const i=r.toString(),o=B.encodeUTF8Into(t,i,n+4)+1;return C.setInt32LE(t,n,o),n=n+4+o-1,t[n++]=0,n}function Zt(t,e,r,n,i=!1,o=0,a=!1,s=!0,c){if(r.scope&&"object"==typeof r.scope){t[n++]=15,n+=B.encodeUTF8Into(t,e,n),t[n++]=0;let u=n;const f=r.code;n+=4;const l=B.encodeUTF8Into(t,f,n+4)+1;C.setInt32LE(t,n,l),t[n+4+l-1]=0,n=n+l+4;const h=ne(t,r.scope,i,n,o+1,a,s,c);n=h-1;const p=h-u;u+=C.setInt32LE(t,u,p),t[n++]=0}else{t[n++]=13,n+=B.encodeUTF8Into(t,e,n),t[n++]=0;const i=r.code.toString(),o=B.encodeUTF8Into(t,i,n+4)+1;C.setInt32LE(t,n,o),n=n+4+o-1,t[n++]=0}return n}function te(t,e,r,n){t[n++]=5,n+=B.encodeUTF8Into(t,e,n),t[n++]=0;const i=r.buffer;let o=r.position;if(r.sub_type===U.SUBTYPE_BYTE_ARRAY&&(o+=4),n+=C.setInt32LE(t,n,o),t[n++]=r.sub_type,r.sub_type===U.SUBTYPE_BYTE_ARRAY&&(o-=4,n+=C.setInt32LE(t,n,o)),r.sub_type===U.SUBTYPE_VECTOR&&q(r),o<=16)for(let e=0;e<o;e++)t[n+e]=i[e];else t.set(i,n);return n+r.position}function ee(t,e,r,n){t[n++]=14,n+=B.encodeUTF8Into(t,e,n),t[n++]=0;const i=B.encodeUTF8Into(t,r.value,n+4)+1;return C.setInt32LE(t,n,i),n=n+4+i-1,t[n++]=0,n}function re(t,e,r,n,i,o,a){t[n++]=3,n+=B.encodeUTF8Into(t,e,n),t[n++]=0;let s=n,c={$ref:r.collection||r.namespace,$id:r.oid};null!=r.db&&(c.$db=r.db),c=Object.assign(c,r.fields);const u=ne(t,c,!1,n,i+1,o,!0,a),f=u-s;return s+=C.setInt32LE(t,n,f),u}function ne(t,e,r,n,i,f,h,p){if(null==p){if(null==e)return t[0]=5,t[1]=0,t[2]=0,t[3]=0,t[4]=0,5;if(Array.isArray(e))throw new g("serialize does not support an array as the root input");if("object"!=typeof e)throw new g("serialize does not support non-object as the root input");if("_bsontype"in e&&"string"==typeof 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strict";t.exports=JSON.parse('{"modp1":{"gen":"02","prime":"ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a63a3620ffffffffffffffff"},"modp2":{"gen":"02","prime":"ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f24117c4b1fe649286651ece65381ffffffffffffffff"},"modp5":{"gen":"02","prime":"ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f24117c4b1fe649286651ece45b3dc2007cb8a163bf0598da48361c55d39a69163fa8fd24cf5f83655d23dca3ad961c62f356208552bb9ed529077096966d670c354e4abc9804f1746c08ca237327ffffffffffffffff"},"modp14":{"gen":"02","prime":"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"},"modp15":{"gen":"02","prime":"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"},"modp16":{"gen":"02","prime":"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"},"modp17":{"gen":"02","prime":"ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f24117c4b1fe649286651ece45b3dc2007cb8a163bf0598da48361c55d39a69163fa8fd24cf5f83655d23dca3ad961c62f356208552bb9ed529077096966d670c354e4abc9804f1746c08ca18217c32905e462e36ce3be39e772c180e86039b2783a2ec07a28fb5c55df06f4c52c9de2bcbf6955817183995497cea956ae515d2261898fa051015728e5a8aaac42dad33170d04507a33a85521abdf1cba64ecfb850458dbef0a8aea71575d060c7db3970f85a6e1e4c7abf5ae8cdb0933d71e8c94e04a25619dcee3d2261ad2ee6bf12ffa06d98a0864d87602733ec86a64521f2b18177b200cbbe117577a615d6c770988c0bad946e208e24fa074e5ab3143db5bfce0fd108e4b82d120a92108011a723c12a787e6d788719a10bdba5b2699c327186af4e23c1a946834b6150bda2583e9ca2ad44ce8dbbbc2db04de8ef92e8efc141fbecaa6287c59474e6bc05d99b2964fa090c3a2233ba186515be7ed1f612970cee2d7afb81bdd762170481cd0069127d5b05aa993b4ea988d8fddc186ffb7dc90a6c08f4df435c93402849236c3fab4d27c7026c1d4dcb2602646dec9751e763dba37bdf8ff9406ad9e530ee5db382f413001aeb06a53ed9027d831179727b0865a8918da3edbebcf9b14ed44ce6cbaced4bb1bdb7f1447e6cc254b332051512bd7af426fb8f401378cd2bf5983ca01c64b92ecf032ea15d1721d03f482d7ce6e74fef6d55e702f46980c82b5a84031900b1c9e59e7c97fbec7e8f323a97a7e36cc88be0f1d45b7ff585ac54bd407b22b4154aacc8f6d7ebf48e1d814cc5ed20f8037e0a79715eef29be32806a1d58bb7c5da76f550aa3d8a1fbff0eb19ccb1a313d55cda56c9ec2ef29632387fe8d76e3c0468043e8f663f4860ee12bf2d5b0b7474d6e694f91e6dcc4024ffffffffffffffff"},"modp18":{"gen":"02","prime":"ffffffffffffffffc90fdaa22168c234c4c6628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strict";t.exports={rE:"6.6.1"}},5579:t=>{"use strict";t.exports=JSON.parse('{"2.16.840.1.101.3.4.1.1":"aes-128-ecb","2.16.840.1.101.3.4.1.2":"aes-128-cbc","2.16.840.1.101.3.4.1.3":"aes-128-ofb","2.16.840.1.101.3.4.1.4":"aes-128-cfb","2.16.840.1.101.3.4.1.21":"aes-192-ecb","2.16.840.1.101.3.4.1.22":"aes-192-cbc","2.16.840.1.101.3.4.1.23":"aes-192-ofb","2.16.840.1.101.3.4.1.24":"aes-192-cfb","2.16.840.1.101.3.4.1.41":"aes-256-ecb","2.16.840.1.101.3.4.1.42":"aes-256-cbc","2.16.840.1.101.3.4.1.43":"aes-256-ofb","2.16.840.1.101.3.4.1.44":"aes-256-cfb"}')}},e={};function r(n){var i=e[n];if(void 0!==i)return i.exports;var o=e[n]={id:n,loaded:!1,exports:{}};return t[n].call(o.exports,o,o.exports,r),o.loaded=!0,o.exports}return r.g=function(){if("object"==typeof globalThis)return globalThis;try{return this||new Function("return this")()}catch(t){if("object"==typeof window)return window}}(),r.nmd=t=>(t.paths=[],t.children||(t.children=[]),t),r(4986)})()));
\ No newline at end of file
diff --git a/backend/node_modules/mongoose/index.js b/backend/node_modules/mongoose/index.js
new file mode 100644
index 0000000..6ebbd5f
--- /dev/null
+++ b/backend/node_modules/mongoose/index.js
@@ -0,0 +1,64 @@
+/**
+ * Export lib/mongoose
+ *
+ */
+
+'use strict';
+
+const mongoose = require('./lib/');
+
+module.exports = mongoose;
+module.exports.default = mongoose;
+module.exports.mongoose = mongoose;
+
+// Re-export for ESM support
+module.exports.cast = mongoose.cast;
+module.exports.STATES = mongoose.STATES;
+module.exports.setDriver = mongoose.setDriver;
+module.exports.set = mongoose.set;
+module.exports.get = mongoose.get;
+module.exports.createConnection = mongoose.createConnection;
+module.exports.connect = mongoose.connect;
+module.exports.disconnect = mongoose.disconnect;
+module.exports.startSession = mongoose.startSession;
+module.exports.pluralize = mongoose.pluralize;
+module.exports.model = mongoose.model;
+module.exports.deleteModel = mongoose.deleteModel;
+module.exports.modelNames = mongoose.modelNames;
+module.exports.plugin = mongoose.plugin;
+module.exports.connections = mongoose.connections;
+module.exports.version = mongoose.version;
+module.exports.Aggregate = mongoose.Aggregate;
+module.exports.Mongoose = mongoose.Mongoose;
+module.exports.Schema = mongoose.Schema;
+module.exports.SchemaType = mongoose.SchemaType;
+module.exports.SchemaTypes = mongoose.SchemaTypes;
+module.exports.VirtualType = mongoose.VirtualType;
+module.exports.Types = mongoose.Types;
+module.exports.Query = mongoose.Query;
+module.exports.Model = mongoose.Model;
+module.exports.Document = mongoose.Document;
+module.exports.ObjectId = mongoose.ObjectId;
+module.exports.isValidObjectId = mongoose.isValidObjectId;
+module.exports.isObjectIdOrHexString = mongoose.isObjectIdOrHexString;
+module.exports.syncIndexes = mongoose.syncIndexes;
+module.exports.Decimal128 = mongoose.Decimal128;
+module.exports.Mixed = mongoose.Mixed;
+module.exports.Date = mongoose.Date;
+module.exports.Number = mongoose.Number;
+module.exports.Error = mongoose.Error;
+module.exports.MongooseError = mongoose.MongooseError;
+module.exports.now = mongoose.now;
+module.exports.CastError = mongoose.CastError;
+module.exports.SchemaTypeOptions = mongoose.SchemaTypeOptions;
+module.exports.mongo = mongoose.mongo;
+module.exports.mquery = mongoose.mquery;
+module.exports.sanitizeFilter = mongoose.sanitizeFilter;
+module.exports.trusted = mongoose.trusted;
+module.exports.skipMiddlewareFunction = mongoose.skipMiddlewareFunction;
+module.exports.overwriteMiddlewareResult = mongoose.overwriteMiddlewareResult;
+
+// The following properties are not exported using ESM because `setDriver()` can mutate these
+// module.exports.connection = mongoose.connection;
+// module.exports.Collection = mongoose.Collection;
+// module.exports.Connection = mongoose.Connection;
diff --git a/backend/node_modules/mongoose/lib/aggregate.js b/backend/node_modules/mongoose/lib/aggregate.js
new file mode 100644
index 0000000..3a3fadf
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/aggregate.js
@@ -0,0 +1,1228 @@
+'use strict';
+
+/*!
+ * Module dependencies
+ */
+
+const AggregationCursor = require('./cursor/aggregationCursor');
+const MongooseError = require('./error/mongooseError');
+const Query = require('./query');
+const { applyGlobalMaxTimeMS, applyGlobalDiskUse } = require('./helpers/query/applyGlobalOption');
+const clone = require('./helpers/clone');
+const getConstructorName = require('./helpers/getConstructorName');
+const prepareDiscriminatorPipeline = require('./helpers/aggregate/prepareDiscriminatorPipeline');
+const stringifyFunctionOperators = require('./helpers/aggregate/stringifyFunctionOperators');
+const utils = require('./utils');
+const read = Query.prototype.read;
+const readConcern = Query.prototype.readConcern;
+
+const validRedactStringValues = new Set(['$$DESCEND', '$$PRUNE', '$$KEEP']);
+
+/**
+ * Aggregate constructor used for building aggregation pipelines. Do not
+ * instantiate this class directly, use [Model.aggregate()](https://mongoosejs.com/docs/api/model.html#Model.aggregate()) instead.
+ *
+ * #### Example:
+ *
+ *     const aggregate = Model.aggregate([
+ *       { $project: { a: 1, b: 1 } },
+ *       { $skip: 5 }
+ *     ]);
+ *
+ *     Model.
+ *       aggregate([{ $match: { age: { $gte: 21 }}}]).
+ *       unwind('tags').
+ *       exec();
+ *
+ * #### Note:
+ *
+ * - The documents returned are plain javascript objects, not mongoose documents (since any shape of document can be returned).
+ * - Mongoose does **not** cast pipeline stages. The below will **not** work unless `_id` is a string in the database
+ *
+ *     new Aggregate([{ $match: { _id: '00000000000000000000000a' } }]);
+ *     // Do this instead to cast to an ObjectId
+ *     new Aggregate([{ $match: { _id: new mongoose.Types.ObjectId('00000000000000000000000a') } }]);
+ *
+ * @see MongoDB https://www.mongodb.com/docs/manual/applications/aggregation/
+ * @see driver https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#aggregate
+ * @param {Array} [pipeline] aggregation pipeline as an array of objects
+ * @param {Model} [model] the model to use with this aggregate.
+ * @api public
+ */
+
+function Aggregate(pipeline, model) {
+  this._pipeline = [];
+  this._model = model;
+  this.options = {};
+
+  if (arguments.length === 1 && Array.isArray(pipeline)) {
+    this.append.apply(this, pipeline);
+  }
+}
+
+/**
+ * Contains options passed down to the [aggregate command](https://www.mongodb.com/docs/manual/reference/command/aggregate/).
+ * Supported options are:
+ *
+ * - [`allowDiskUse`](https://mongoosejs.com/docs/api/aggregate.html#Aggregate.prototype.allowDiskUse())
+ * - `bypassDocumentValidation`
+ * - [`collation`](https://mongoosejs.com/docs/api/aggregate.html#Aggregate.prototype.collation())
+ * - `comment`
+ * - [`cursor`](https://mongoosejs.com/docs/api/aggregate.html#Aggregate.prototype.cursor())
+ * - [`explain`](https://mongoosejs.com/docs/api/aggregate.html#Aggregate.prototype.explain())
+ * - `fieldsAsRaw`
+ * - [`hint`](https://mongoosejs.com/docs/api/aggregate.html#Aggregate.prototype.hint())
+ * - `let`
+ * - `maxTimeMS`
+ * - `raw`
+ * - [`readConcern`](https://mongoosejs.com/docs/api/aggregate.html#Aggregate.prototype.readConcern())
+ * - `readPreference`
+ * - [`session`](https://mongoosejs.com/docs/api/aggregate.html#Aggregate.prototype.session())
+ * - `writeConcern`
+ *
+ * @property options
+ * @memberOf Aggregate
+ * @api public
+ */
+
+Aggregate.prototype.options;
+
+/**
+ * Returns default options for this aggregate.
+ *
+ * @param {Model} model
+ * @api private
+ */
+
+Aggregate.prototype._optionsForExec = function() {
+  const options = this.options || {};
+
+  const asyncLocalStorage = this.model()?.db?.base.transactionAsyncLocalStorage?.getStore();
+  if (!options.hasOwnProperty('session') && asyncLocalStorage?.session != null) {
+    options.session = asyncLocalStorage.session;
+  }
+
+  return options;
+};
+
+/**
+ * Get/set the model that this aggregation will execute on.
+ *
+ * #### Example:
+ *
+ *     const aggregate = MyModel.aggregate([{ $match: { answer: 42 } }]);
+ *     aggregate.model() === MyModel; // true
+ *
+ *     // Change the model. There's rarely any reason to do this.
+ *     aggregate.model(SomeOtherModel);
+ *     aggregate.model() === SomeOtherModel; // true
+ *
+ * @param {Model} [model] Set the model associated with this aggregate. If not provided, returns the already stored model.
+ * @return {Model}
+ * @api public
+ */
+
+Aggregate.prototype.model = function(model) {
+  if (arguments.length === 0) {
+    return this._model;
+  }
+
+  this._model = model;
+  if (model.schema != null) {
+    if (this.options.readPreference == null &&
+      model.schema.options.read != null) {
+      this.options.readPreference = model.schema.options.read;
+    }
+    if (this.options.collation == null &&
+      model.schema.options.collation != null) {
+      this.options.collation = model.schema.options.collation;
+    }
+  }
+
+  return model;
+};
+
+/**
+ * Appends new operators to this aggregate pipeline
+ *
+ * #### Example:
+ *
+ *     aggregate.append({ $project: { field: 1 }}, { $limit: 2 });
+ *
+ *     // or pass an array
+ *     const pipeline = [{ $match: { daw: 'Logic Audio X' }} ];
+ *     aggregate.append(pipeline);
+ *
+ * @param {...Object|Object[]} ops operator(s) to append. Can either be a spread of objects or a single parameter of a object array.
+ * @return {Aggregate}
+ * @api public
+ */
+
+Aggregate.prototype.append = function() {
+  const args = (arguments.length === 1 && Array.isArray(arguments[0]))
+    ? arguments[0]
+    : [...arguments];
+
+  if (!args.every(isOperator)) {
+    throw new Error('Arguments must be aggregate pipeline operators');
+  }
+
+  this._pipeline = this._pipeline.concat(args);
+
+  return this;
+};
+
+/**
+ * Appends a new $addFields operator to this aggregate pipeline.
+ * Requires MongoDB v3.4+ to work
+ *
+ * #### Example:
+ *
+ *     // adding new fields based on existing fields
+ *     aggregate.addFields({
+ *         newField: '$b.nested'
+ *       , plusTen: { $add: ['$val', 10]}
+ *       , sub: {
+ *            name: '$a'
+ *         }
+ *     })
+ *
+ *     // etc
+ *     aggregate.addFields({ salary_k: { $divide: [ "$salary", 1000 ] } });
+ *
+ * @param {Object} arg field specification
+ * @see $addFields https://www.mongodb.com/docs/manual/reference/operator/aggregation/addFields/
+ * @return {Aggregate}
+ * @api public
+ */
+Aggregate.prototype.addFields = function(arg) {
+  if (typeof arg !== 'object' || arg === null || Array.isArray(arg)) {
+    throw new Error('Invalid addFields() argument. Must be an object');
+  }
+  return this.append({ $addFields: Object.assign({}, arg) });
+};
+
+/**
+ * Appends a new $project operator to this aggregate pipeline.
+ *
+ * Mongoose query [selection syntax](https://mongoosejs.com/docs/api/query.html#Query.prototype.select()) is also supported.
+ *
+ * #### Example:
+ *
+ *     // include a, include b, exclude _id
+ *     aggregate.project("a b -_id");
+ *
+ *     // or you may use object notation, useful when
+ *     // you have keys already prefixed with a "-"
+ *     aggregate.project({a: 1, b: 1, _id: 0});
+ *
+ *     // reshaping documents
+ *     aggregate.project({
+ *         newField: '$b.nested'
+ *       , plusTen: { $add: ['$val', 10]}
+ *       , sub: {
+ *            name: '$a'
+ *         }
+ *     })
+ *
+ *     // etc
+ *     aggregate.project({ salary_k: { $divide: [ "$salary", 1000 ] } });
+ *
+ * @param {Object|String} arg field specification
+ * @see projection https://www.mongodb.com/docs/manual/reference/aggregation/project/
+ * @return {Aggregate}
+ * @api public
+ */
+
+Aggregate.prototype.project = function(arg) {
+  const fields = {};
+
+  if (typeof arg === 'object' && !Array.isArray(arg)) {
+    Object.keys(arg).forEach(function(field) {
+      fields[field] = arg[field];
+    });
+  } else if (arguments.length === 1 && typeof arg === 'string') {
+    arg.split(/\s+/).forEach(function(field) {
+      if (!field) {
+        return;
+      }
+      const include = field[0] === '-' ? 0 : 1;
+      if (include === 0) {
+        field = field.substring(1);
+      }
+      fields[field] = include;
+    });
+  } else {
+    throw new Error('Invalid project() argument. Must be string or object');
+  }
+
+  return this.append({ $project: fields });
+};
+
+/**
+ * Appends a new custom $group operator to this aggregate pipeline.
+ *
+ * #### Example:
+ *
+ *     aggregate.group({ _id: "$department" });
+ *
+ * @see $group https://www.mongodb.com/docs/manual/reference/aggregation/group/
+ * @method group
+ * @memberOf Aggregate
+ * @instance
+ * @param {Object} arg $group operator contents
+ * @return {Aggregate}
+ * @api public
+ */
+
+/**
+ * Appends a new custom $match operator to this aggregate pipeline.
+ *
+ * #### Example:
+ *
+ *     aggregate.match({ department: { $in: [ "sales", "engineering" ] } });
+ *
+ * @see $match https://www.mongodb.com/docs/manual/reference/aggregation/match/
+ * @method match
+ * @memberOf Aggregate
+ * @instance
+ * @param {Object} arg $match operator contents
+ * @return {Aggregate}
+ * @api public
+ */
+
+/**
+ * Appends a new $skip operator to this aggregate pipeline.
+ *
+ * #### Example:
+ *
+ *     aggregate.skip(10);
+ *
+ * @see $skip https://www.mongodb.com/docs/manual/reference/aggregation/skip/
+ * @method skip
+ * @memberOf Aggregate
+ * @instance
+ * @param {Number} num number of records to skip before next stage
+ * @return {Aggregate}
+ * @api public
+ */
+
+/**
+ * Appends a new $limit operator to this aggregate pipeline.
+ *
+ * #### Example:
+ *
+ *     aggregate.limit(10);
+ *
+ * @see $limit https://www.mongodb.com/docs/manual/reference/aggregation/limit/
+ * @method limit
+ * @memberOf Aggregate
+ * @instance
+ * @param {Number} num maximum number of records to pass to the next stage
+ * @return {Aggregate}
+ * @api public
+ */
+
+
+/**
+ * Appends a new $densify operator to this aggregate pipeline.
+ *
+ * #### Example:
+ *
+ *      aggregate.densify({
+ *        field: 'timestamp',
+ *        range: {
+ *          step: 1,
+ *          unit: 'hour',
+ *          bounds: [new Date('2021-05-18T00:00:00.000Z'), new Date('2021-05-18T08:00:00.000Z')]
+ *        }
+ *      });
+ *
+ * @see $densify https://www.mongodb.com/docs/manual/reference/operator/aggregation/densify/
+ * @method densify
+ * @memberOf Aggregate
+ * @instance
+ * @param {Object} arg $densify operator contents
+ * @return {Aggregate}
+ * @api public
+ */
+
+/**
+ * Appends a new $fill operator to this aggregate pipeline.
+ *
+ * #### Example:
+ *
+ *      aggregate.fill({
+ *        output: {
+ *          bootsSold: { value: 0 },
+ *          sandalsSold: { value: 0 },
+ *          sneakersSold: { value: 0 }
+ *        }
+ *      });
+ *
+ * @see $fill https://www.mongodb.com/docs/manual/reference/operator/aggregation/fill/
+ * @method fill
+ * @memberOf Aggregate
+ * @instance
+ * @param {Object} arg $fill operator contents
+ * @return {Aggregate}
+ * @api public
+ */
+
+/**
+ * Appends a new $geoNear operator to this aggregate pipeline.
+ *
+ * #### Note:
+ *
+ * **MUST** be used as the first operator in the pipeline.
+ *
+ * #### Example:
+ *
+ *     aggregate.near({
+ *       near: { type: 'Point', coordinates: [40.724, -73.997] },
+ *       distanceField: "dist.calculated", // required
+ *       maxDistance: 0.008,
+ *       query: { type: "public" },
+ *       includeLocs: "dist.location",
+ *       spherical: true,
+ *     });
+ *
+ * @see $geoNear https://www.mongodb.com/docs/manual/reference/aggregation/geoNear/
+ * @method near
+ * @memberOf Aggregate
+ * @instance
+ * @param {Object} arg
+ * @param {Object|Array<Number>} arg.near GeoJSON point or coordinates array
+ * @return {Aggregate}
+ * @api public
+ */
+
+Aggregate.prototype.near = function(arg) {
+  if (arg == null) {
+    throw new MongooseError('Aggregate `near()` must be called with non-nullish argument');
+  }
+  if (arg.near == null) {
+    throw new MongooseError('Aggregate `near()` argument must have a `near` property');
+  }
+  const coordinates = Array.isArray(arg.near) ? arg.near : arg.near.coordinates;
+  if (typeof arg.near === 'object' && (!Array.isArray(coordinates) || coordinates.length < 2 || coordinates.find(c => typeof c !== 'number'))) {
+    throw new MongooseError(`Aggregate \`near()\` argument has invalid coordinates, got "${coordinates}"`);
+  }
+
+  const op = {};
+  op.$geoNear = arg;
+  return this.append(op);
+};
+
+/*!
+ * define methods
+ */
+
+'group match skip limit out densify fill'.split(' ').forEach(function($operator) {
+  Aggregate.prototype[$operator] = function(arg) {
+    const op = {};
+    op['$' + $operator] = arg;
+    return this.append(op);
+  };
+});
+
+/**
+ * Appends new custom $unwind operator(s) to this aggregate pipeline.
+ *
+ * Note that the `$unwind` operator requires the path name to start with '$'.
+ * Mongoose will prepend '$' if the specified field doesn't start '$'.
+ *
+ * #### Example:
+ *
+ *     aggregate.unwind("tags");
+ *     aggregate.unwind("a", "b", "c");
+ *     aggregate.unwind({ path: '$tags', preserveNullAndEmptyArrays: true });
+ *
+ * @see $unwind https://www.mongodb.com/docs/manual/reference/aggregation/unwind/
+ * @param {String|Object|String[]|Object[]} fields the field(s) to unwind, either as field names or as [objects with options](https://www.mongodb.com/docs/manual/reference/operator/aggregation/unwind/#document-operand-with-options). If passing a string, prefixing the field name with '$' is optional. If passing an object, `path` must start with '$'.
+ * @return {Aggregate}
+ * @api public
+ */
+
+Aggregate.prototype.unwind = function() {
+  const args = [...arguments];
+
+  const res = [];
+  for (const arg of args) {
+    if (arg && typeof arg === 'object') {
+      res.push({ $unwind: arg });
+    } else if (typeof arg === 'string') {
+      res.push({
+        $unwind: (arg[0] === '$') ? arg : '$' + arg
+      });
+    } else {
+      throw new Error('Invalid arg "' + arg + '" to unwind(), ' +
+        'must be string or object');
+    }
+  }
+
+  return this.append.apply(this, res);
+};
+
+/**
+ * Appends a new $replaceRoot operator to this aggregate pipeline.
+ *
+ * Note that the `$replaceRoot` operator requires field strings to start with '$'.
+ * If you are passing in a string Mongoose will prepend '$' if the specified field doesn't start '$'.
+ * If you are passing in an object the strings in your expression will not be altered.
+ *
+ * #### Example:
+ *
+ *     aggregate.replaceRoot("user");
+ *
+ *     aggregate.replaceRoot({ x: { $concat: ['$this', '$that'] } });
+ *
+ * @see $replaceRoot https://www.mongodb.com/docs/manual/reference/operator/aggregation/replaceRoot
+ * @param {String|Object} newRoot the field or document which will become the new root document
+ * @return {Aggregate}
+ * @api public
+ */
+
+Aggregate.prototype.replaceRoot = function(newRoot) {
+  let ret;
+
+  if (typeof newRoot === 'string') {
+    ret = newRoot.startsWith('$') ? newRoot : '$' + newRoot;
+  } else {
+    ret = newRoot;
+  }
+
+  return this.append({
+    $replaceRoot: {
+      newRoot: ret
+    }
+  });
+};
+
+/**
+ * Appends a new $count operator to this aggregate pipeline.
+ *
+ * #### Example:
+ *
+ *     aggregate.count("userCount");
+ *
+ * @see $count https://www.mongodb.com/docs/manual/reference/operator/aggregation/count
+ * @param {String} fieldName The name of the output field which has the count as its value. It must be a non-empty string, must not start with $ and must not contain the . character.
+ * @return {Aggregate}
+ * @api public
+ */
+
+Aggregate.prototype.count = function(fieldName) {
+  return this.append({ $count: fieldName });
+};
+
+/**
+ * Appends a new $sortByCount operator to this aggregate pipeline. Accepts either a string field name
+ * or a pipeline object.
+ *
+ * Note that the `$sortByCount` operator requires the new root to start with '$'.
+ * Mongoose will prepend '$' if the specified field name doesn't start with '$'.
+ *
+ * #### Example:
+ *
+ *     aggregate.sortByCount('users');
+ *     aggregate.sortByCount({ $mergeObjects: [ "$employee", "$business" ] })
+ *
+ * @see $sortByCount https://www.mongodb.com/docs/manual/reference/operator/aggregation/sortByCount/
+ * @param {Object|String} arg
+ * @return {Aggregate} this
+ * @api public
+ */
+
+Aggregate.prototype.sortByCount = function(arg) {
+  if (arg && typeof arg === 'object') {
+    return this.append({ $sortByCount: arg });
+  } else if (typeof arg === 'string') {
+    return this.append({
+      $sortByCount: (arg[0] === '$') ? arg : '$' + arg
+    });
+  } else {
+    throw new TypeError('Invalid arg "' + arg + '" to sortByCount(), ' +
+      'must be string or object');
+  }
+};
+
+/**
+ * Appends new custom $lookup operator to this aggregate pipeline.
+ *
+ * #### Example:
+ *
+ *     aggregate.lookup({ from: 'users', localField: 'userId', foreignField: '_id', as: 'users' });
+ *
+ * @see $lookup https://www.mongodb.com/docs/manual/reference/operator/aggregation/lookup/#pipe._S_lookup
+ * @param {Object} options to $lookup as described in the above link
+ * @return {Aggregate}
+ * @api public
+ */
+
+Aggregate.prototype.lookup = function(options) {
+  return this.append({ $lookup: options });
+};
+
+/**
+ * Appends new custom $graphLookup operator(s) to this aggregate pipeline, performing a recursive search on a collection.
+ *
+ * Note that graphLookup can only consume at most 100MB of memory, and does not allow disk use even if `{ allowDiskUse: true }` is specified.
+ *
+ * #### Example:
+ *
+ *      // Suppose we have a collection of courses, where a document might look like `{ _id: 0, name: 'Calculus', prerequisite: 'Trigonometry'}` and `{ _id: 0, name: 'Trigonometry', prerequisite: 'Algebra' }`
+ *      aggregate.graphLookup({ from: 'courses', startWith: '$prerequisite', connectFromField: 'prerequisite', connectToField: 'name', as: 'prerequisites', maxDepth: 3 }) // this will recursively search the 'courses' collection up to 3 prerequisites
+ *
+ * @see $graphLookup https://www.mongodb.com/docs/manual/reference/operator/aggregation/graphLookup/#pipe._S_graphLookup
+ * @param {Object} options to $graphLookup as described in the above link
+ * @return {Aggregate}
+ * @api public
+ */
+
+Aggregate.prototype.graphLookup = function(options) {
+  const cloneOptions = {};
+  if (options) {
+    if (!utils.isObject(options)) {
+      throw new TypeError('Invalid graphLookup() argument. Must be an object.');
+    }
+
+    utils.mergeClone(cloneOptions, options);
+    const startWith = cloneOptions.startWith;
+
+    if (startWith && typeof startWith === 'string') {
+      cloneOptions.startWith = cloneOptions.startWith.startsWith('$') ?
+        cloneOptions.startWith :
+        '$' + cloneOptions.startWith;
+    }
+
+  }
+  return this.append({ $graphLookup: cloneOptions });
+};
+
+/**
+ * Appends new custom $sample operator to this aggregate pipeline.
+ *
+ * #### Example:
+ *
+ *     aggregate.sample(3); // Add a pipeline that picks 3 random documents
+ *
+ * @see $sample https://www.mongodb.com/docs/manual/reference/operator/aggregation/sample/#pipe._S_sample
+ * @param {Number} size number of random documents to pick
+ * @return {Aggregate}
+ * @api public
+ */
+
+Aggregate.prototype.sample = function(size) {
+  return this.append({ $sample: { size: size } });
+};
+
+/**
+ * Appends a new $sort operator to this aggregate pipeline.
+ *
+ * If an object is passed, values allowed are `asc`, `desc`, `ascending`, `descending`, `1`, and `-1`.
+ *
+ * If a string is passed, it must be a space delimited list of path names. The sort order of each path is ascending unless the path name is prefixed with `-` which will be treated as descending.
+ *
+ * #### Example:
+ *
+ *     // these are equivalent
+ *     aggregate.sort({ field: 'asc', test: -1 });
+ *     aggregate.sort('field -test');
+ *
+ * @see $sort https://www.mongodb.com/docs/manual/reference/aggregation/sort/
+ * @param {Object|String} arg
+ * @return {Aggregate} this
+ * @api public
+ */
+
+Aggregate.prototype.sort = function(arg) {
+  // TODO refactor to reuse the query builder logic
+
+  const sort = {};
+
+  if (getConstructorName(arg) === 'Object') {
+    const desc = ['desc', 'descending', -1];
+    Object.keys(arg).forEach(function(field) {
+      // If sorting by text score, skip coercing into 1/-1
+      if (arg[field] instanceof Object && arg[field].$meta) {
+        sort[field] = arg[field];
+        return;
+      }
+      sort[field] = desc.indexOf(arg[field]) === -1 ? 1 : -1;
+    });
+  } else if (arguments.length === 1 && typeof arg === 'string') {
+    arg.split(/\s+/).forEach(function(field) {
+      if (!field) {
+        return;
+      }
+      const ascend = field[0] === '-' ? -1 : 1;
+      if (ascend === -1) {
+        field = field.substring(1);
+      }
+      sort[field] = ascend;
+    });
+  } else {
+    throw new TypeError('Invalid sort() argument. Must be a string or object.');
+  }
+
+  return this.append({ $sort: sort });
+};
+
+/**
+ * Appends new $unionWith operator to this aggregate pipeline.
+ *
+ * #### Example:
+ *
+ *     aggregate.unionWith({ coll: 'users', pipeline: [ { $match: { _id: 1 } } ] });
+ *
+ * @see $unionWith https://www.mongodb.com/docs/manual/reference/operator/aggregation/unionWith
+ * @param {Object} options to $unionWith query as described in the above link
+ * @return {Aggregate}
+ * @api public
+ */
+
+Aggregate.prototype.unionWith = function(options) {
+  return this.append({ $unionWith: options });
+};
+
+
+/**
+ * Sets the readPreference option for the aggregation query.
+ *
+ * #### Example:
+ *
+ *     await Model.aggregate(pipeline).read('primaryPreferred');
+ *
+ * @param {String|ReadPreference} pref one of the listed preference options or their aliases
+ * @param {Array} [tags] optional tags for this query.
+ * @return {Aggregate} this
+ * @api public
+ * @see mongodb https://www.mongodb.com/docs/manual/applications/replication/#read-preference
+ */
+
+Aggregate.prototype.read = function(pref, tags) {
+  read.call(this, pref, tags);
+  return this;
+};
+
+/**
+ * Sets the readConcern level for the aggregation query.
+ *
+ * #### Example:
+ *
+ *     await Model.aggregate(pipeline).readConcern('majority');
+ *
+ * @param {String} level one of the listed read concern level or their aliases
+ * @see mongodb https://www.mongodb.com/docs/manual/reference/read-concern/
+ * @return {Aggregate} this
+ * @api public
+ */
+
+Aggregate.prototype.readConcern = function(level) {
+  readConcern.call(this, level);
+  return this;
+};
+
+/**
+ * Appends a new $redact operator to this aggregate pipeline.
+ *
+ * If 3 arguments are supplied, Mongoose will wrap them with if-then-else of $cond operator respectively
+ * If `thenExpr` or `elseExpr` is string, make sure it starts with $$, like `$$DESCEND`, `$$PRUNE` or `$$KEEP`.
+ *
+ * #### Example:
+ *
+ *     await Model.aggregate(pipeline).redact({
+ *       $cond: {
+ *         if: { $eq: [ '$level', 5 ] },
+ *         then: '$$PRUNE',
+ *         else: '$$DESCEND'
+ *       }
+ *     });
+ *
+ *     // $redact often comes with $cond operator, you can also use the following syntax provided by mongoose
+ *     await Model.aggregate(pipeline).redact({ $eq: [ '$level', 5 ] }, '$$PRUNE', '$$DESCEND');
+ *
+ * @param {Object} expression redact options or conditional expression
+ * @param {String|Object} [thenExpr] true case for the condition
+ * @param {String|Object} [elseExpr] false case for the condition
+ * @return {Aggregate} this
+ * @see $redact https://www.mongodb.com/docs/manual/reference/operator/aggregation/redact/
+ * @api public
+ */
+
+Aggregate.prototype.redact = function(expression, thenExpr, elseExpr) {
+  if (arguments.length === 3) {
+    if ((typeof thenExpr === 'string' && !validRedactStringValues.has(thenExpr)) ||
+      (typeof elseExpr === 'string' && !validRedactStringValues.has(elseExpr))) {
+      throw new Error('If thenExpr or elseExpr is string, it must be either $$DESCEND, $$PRUNE or $$KEEP');
+    }
+
+    expression = {
+      $cond: {
+        if: expression,
+        then: thenExpr,
+        else: elseExpr
+      }
+    };
+  } else if (arguments.length !== 1) {
+    throw new TypeError('Invalid arguments');
+  }
+
+  return this.append({ $redact: expression });
+};
+
+/**
+ * Execute the aggregation with explain
+ *
+ * #### Example:
+ *
+ *     Model.aggregate(..).explain()
+ *
+ * @param {String} [verbosity]
+ * @return {Promise}
+ */
+
+Aggregate.prototype.explain = async function explain(verbosity) {
+  if (typeof verbosity === 'function' || typeof arguments[1] === 'function') {
+    throw new MongooseError('Aggregate.prototype.explain() no longer accepts a callback');
+  }
+  const model = this._model;
+
+  if (!this._pipeline.length) {
+    throw new Error('Aggregate has empty pipeline');
+  }
+
+  prepareDiscriminatorPipeline(this._pipeline, this._model.schema);
+
+  await new Promise((resolve, reject) => {
+    model.hooks.execPre('aggregate', this, error => {
+      if (error) {
+        const _opts = { error: error };
+        return model.hooks.execPost('aggregate', this, [null], _opts, error => {
+          reject(error);
+        });
+      } else {
+        resolve();
+      }
+    });
+  });
+
+  const cursor = model.collection.aggregate(this._pipeline, this.options);
+
+  if (verbosity == null) {
+    verbosity = true;
+  }
+
+  let result = null;
+  try {
+    result = await cursor.explain(verbosity);
+  } catch (error) {
+    await new Promise((resolve, reject) => {
+      const _opts = { error: error };
+      model.hooks.execPost('aggregate', this, [null], _opts, error => {
+        if (error) {
+          return reject(error);
+        }
+        return resolve();
+      });
+    });
+  }
+
+  const _opts = { error: null };
+  await new Promise((resolve, reject) => {
+    model.hooks.execPost('aggregate', this, [result], _opts, error => {
+      if (error) {
+        return reject(error);
+      }
+      return resolve();
+    });
+  });
+
+  return result;
+};
+
+/**
+ * Sets the allowDiskUse option for the aggregation query
+ *
+ * #### Example:
+ *
+ *     await Model.aggregate([{ $match: { foo: 'bar' } }]).allowDiskUse(true);
+ *
+ * @param {Boolean} value Should tell server it can use hard drive to store data during aggregation.
+ * @return {Aggregate} this
+ * @see mongodb https://www.mongodb.com/docs/manual/reference/command/aggregate/
+ */
+
+Aggregate.prototype.allowDiskUse = function(value) {
+  this.options.allowDiskUse = value;
+  return this;
+};
+
+/**
+ * Sets the hint option for the aggregation query
+ *
+ * #### Example:
+ *
+ *     Model.aggregate(..).hint({ qty: 1, category: 1 }).exec();
+ *
+ * @param {Object|String} value a hint object or the index name
+ * @return {Aggregate} this
+ * @see mongodb https://www.mongodb.com/docs/manual/reference/command/aggregate/
+ */
+
+Aggregate.prototype.hint = function(value) {
+  this.options.hint = value;
+  return this;
+};
+
+/**
+ * Sets the session for this aggregation. Useful for [transactions](https://mongoosejs.com/docs/transactions.html).
+ *
+ * #### Example:
+ *
+ *     const session = await Model.startSession();
+ *     await Model.aggregate(..).session(session);
+ *
+ * @param {ClientSession} session
+ * @return {Aggregate} this
+ * @see mongodb https://www.mongodb.com/docs/manual/reference/command/aggregate/
+ */
+
+Aggregate.prototype.session = function(session) {
+  if (session == null) {
+    delete this.options.session;
+  } else {
+    this.options.session = session;
+  }
+  return this;
+};
+
+/**
+ * Lets you set arbitrary options, for middleware or plugins.
+ *
+ * #### Example:
+ *
+ *     const agg = Model.aggregate(..).option({ allowDiskUse: true }); // Set the `allowDiskUse` option
+ *     agg.options; // `{ allowDiskUse: true }`
+ *
+ * @param {Object} options keys to merge into current options
+ * @param {Number} [options.maxTimeMS] number limits the time this aggregation will run, see [MongoDB docs on `maxTimeMS`](https://www.mongodb.com/docs/manual/reference/operator/meta/maxTimeMS/)
+ * @param {Boolean} [options.allowDiskUse] boolean if true, the MongoDB server will use the hard drive to store data during this aggregation
+ * @param {Object} [options.collation] object see [`Aggregate.prototype.collation()`](https://mongoosejs.com/docs/api/aggregate.html#Aggregate.prototype.collation())
+ * @param {ClientSession} [options.session] ClientSession see [`Aggregate.prototype.session()`](https://mongoosejs.com/docs/api/aggregate.html#Aggregate.prototype.session())
+ * @see mongodb https://www.mongodb.com/docs/manual/reference/command/aggregate/
+ * @return {Aggregate} this
+ * @api public
+ */
+
+Aggregate.prototype.option = function(value) {
+  for (const key in value) {
+    this.options[key] = value[key];
+  }
+  return this;
+};
+
+/**
+ * Sets the `cursor` option and executes this aggregation, returning an aggregation cursor.
+ * Cursors are useful if you want to process the results of the aggregation one-at-a-time
+ * because the aggregation result is too big to fit into memory.
+ *
+ * #### Example:
+ *
+ *     const cursor = Model.aggregate(..).cursor({ batchSize: 1000 });
+ *     cursor.eachAsync(function(doc, i) {
+ *       // use doc
+ *     });
+ *
+ * @param {Object} options
+ * @param {Number} [options.batchSize] set the cursor batch size
+ * @param {Boolean} [options.useMongooseAggCursor] use experimental mongoose-specific aggregation cursor (for `eachAsync()` and other query cursor semantics)
+ * @return {AggregationCursor} cursor representing this aggregation
+ * @api public
+ * @see mongodb https://mongodb.github.io/node-mongodb-native/4.9/classes/AggregationCursor.html
+ */
+
+Aggregate.prototype.cursor = function(options) {
+  this._optionsForExec();
+  this.options.cursor = options || {};
+  return new AggregationCursor(this); // return this;
+};
+
+/**
+ * Adds a collation
+ *
+ * #### Example:
+ *
+ *     const res = await Model.aggregate(pipeline).collation({ locale: 'en_US', strength: 1 });
+ *
+ * @param {Object} collation options
+ * @return {Aggregate} this
+ * @api public
+ * @see mongodb https://mongodb.github.io/node-mongodb-native/4.9/interfaces/CollationOptions.html
+ */
+
+Aggregate.prototype.collation = function(collation) {
+  this.options.collation = collation;
+  return this;
+};
+
+/**
+ * Combines multiple aggregation pipelines.
+ *
+ * #### Example:
+ *
+ *     const res = await Model.aggregate().facet({
+ *       books: [{ groupBy: '$author' }],
+ *       price: [{ $bucketAuto: { groupBy: '$price', buckets: 2 } }]
+ *     });
+ *
+ *     // Output: { books: [...], price: [{...}, {...}] }
+ *
+ * @param {Object} facet options
+ * @return {Aggregate} this
+ * @see $facet https://www.mongodb.com/docs/manual/reference/operator/aggregation/facet/
+ * @api public
+ */
+
+Aggregate.prototype.facet = function(options) {
+  return this.append({ $facet: options });
+};
+
+/**
+ * Helper for [Atlas Text Search](https://www.mongodb.com/docs/atlas/atlas-search/tutorial/)'s
+ * `$search` stage.
+ *
+ * #### Example:
+ *
+ *     const res = await Model.aggregate().
+ *      search({
+ *        text: {
+ *          query: 'baseball',
+ *          path: 'plot'
+ *        }
+ *      });
+ *
+ *     // Output: [{ plot: '...', title: '...' }]
+ *
+ * @param {Object} $search options
+ * @return {Aggregate} this
+ * @see $search https://www.mongodb.com/docs/atlas/atlas-search/tutorial/
+ * @api public
+ */
+
+Aggregate.prototype.search = function(options) {
+  return this.append({ $search: options });
+};
+
+/**
+ * Returns the current pipeline
+ *
+ * #### Example:
+ *
+ *     MyModel.aggregate().match({ test: 1 }).pipeline(); // [{ $match: { test: 1 } }]
+ *
+ * @return {Array} The current pipeline similar to the operation that will be executed
+ * @api public
+ */
+
+Aggregate.prototype.pipeline = function() {
+  return this._pipeline;
+};
+
+/**
+ * Executes the aggregate pipeline on the currently bound Model.
+ *
+ * #### Example:
+ *     const result = await aggregate.exec();
+ *
+ * @return {Promise}
+ * @api public
+ */
+
+Aggregate.prototype.exec = async function exec() {
+  if (!this._model) {
+    throw new Error('Aggregate not bound to any Model');
+  }
+  if (typeof arguments[0] === 'function') {
+    throw new MongooseError('Aggregate.prototype.exec() no longer accepts a callback');
+  }
+  const model = this._model;
+  const collection = this._model.collection;
+
+  applyGlobalMaxTimeMS(this.options, model.db.options, model.base.options);
+  applyGlobalDiskUse(this.options, model.db.options, model.base.options);
+
+  this._optionsForExec();
+
+  if (this.options && this.options.cursor) {
+    return new AggregationCursor(this);
+  }
+
+  prepareDiscriminatorPipeline(this._pipeline, this._model.schema);
+  stringifyFunctionOperators(this._pipeline);
+
+  await new Promise((resolve, reject) => {
+    model.hooks.execPre('aggregate', this, error => {
+      if (error) {
+        const _opts = { error: error };
+        return model.hooks.execPost('aggregate', this, [null], _opts, error => {
+          reject(error);
+        });
+      } else {
+        resolve();
+      }
+    });
+  });
+
+  if (!this._pipeline.length) {
+    throw new MongooseError('Aggregate has empty pipeline');
+  }
+
+  const options = clone(this.options || {});
+
+  let result;
+  try {
+    const cursor = await collection.aggregate(this._pipeline, options);
+    result = await cursor.toArray();
+  } catch (error) {
+    await new Promise((resolve, reject) => {
+      const _opts = { error: error };
+      model.hooks.execPost('aggregate', this, [null], _opts, (error) => {
+        if (error) {
+          return reject(error);
+        }
+
+        resolve();
+      });
+    });
+  }
+
+  const _opts = { error: null };
+  await new Promise((resolve, reject) => {
+    model.hooks.execPost('aggregate', this, [result], _opts, error => {
+      if (error) {
+        return reject(error);
+      }
+      return resolve();
+    });
+  });
+
+  return result;
+};
+
+/**
+ * Provides a Promise-like `then` function, which will call `.exec` without a callback
+ * Compatible with `await`.
+ *
+ * #### Example:
+ *
+ *     Model.aggregate(..).then(successCallback, errorCallback);
+ *
+ * @param {Function} [resolve] successCallback
+ * @param {Function} [reject]  errorCallback
+ * @return {Promise}
+ */
+Aggregate.prototype.then = function(resolve, reject) {
+  return this.exec().then(resolve, reject);
+};
+
+/**
+ * Executes the aggregation returning a `Promise` which will be
+ * resolved with either the doc(s) or rejected with the error.
+ * Like [`.then()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.then), but only takes a rejection handler.
+ * Compatible with `await`.
+ *
+ * @param {Function} [reject]
+ * @return {Promise}
+ * @api public
+ */
+
+Aggregate.prototype.catch = function(reject) {
+  return this.exec().then(null, reject);
+};
+
+/**
+ * Executes the aggregate returning a `Promise` which will be
+ * resolved with `.finally()` chained.
+ *
+ * More about [Promise `finally()` in JavaScript](https://thecodebarbarian.com/using-promise-finally-in-node-js.html).
+ *
+ * @param {Function} [onFinally]
+ * @return {Promise}
+ * @api public
+ */
+
+Aggregate.prototype.finally = function(onFinally) {
+  return this.exec().finally(onFinally);
+};
+
+/**
+ * Returns an asyncIterator for use with [`for/await/of` loops](https://thecodebarbarian.com/getting-started-with-async-iterators-in-node-js)
+ * You do not need to call this function explicitly, the JavaScript runtime
+ * will call it for you.
+ *
+ * #### Example:
+ *
+ *     const agg = Model.aggregate([{ $match: { age: { $gte: 25 } } }]);
+ *     for await (const doc of agg) {
+ *       console.log(doc.name);
+ *     }
+ *
+ * Node.js 10.x supports async iterators natively without any flags. You can
+ * enable async iterators in Node.js 8.x using the [`--harmony_async_iteration` flag](https://github.com/tc39/proposal-async-iteration/issues/117#issuecomment-346695187).
+ *
+ * **Note:** This function is not set if `Symbol.asyncIterator` is undefined. If
+ * `Symbol.asyncIterator` is undefined, that means your Node.js version does not
+ * support async iterators.
+ *
+ * @method [Symbol.asyncIterator]
+ * @memberOf Aggregate
+ * @instance
+ * @api public
+ */
+
+if (Symbol.asyncIterator != null) {
+  Aggregate.prototype[Symbol.asyncIterator] = function() {
+    return this.cursor({ useMongooseAggCursor: true }).transformNull()._transformForAsyncIterator();
+  };
+}
+
+/*!
+ * Helpers
+ */
+
+/**
+ * Checks whether an object is likely a pipeline operator
+ *
+ * @param {Object} obj object to check
+ * @return {Boolean}
+ * @api private
+ */
+
+function isOperator(obj) {
+  if (typeof obj !== 'object' || obj === null) {
+    return false;
+  }
+
+  const k = Object.keys(obj);
+
+  return k.length === 1 && k[0][0] === '$';
+}
+
+/**
+ * Adds the appropriate `$match` pipeline step to the top of an aggregate's
+ * pipeline, should it's model is a non-root discriminator type. This is
+ * analogous to the `prepareDiscriminatorCriteria` function in `lib/query.js`.
+ *
+ * @param {Aggregate} aggregate Aggregate to prepare
+ * @api private
+ */
+
+Aggregate._prepareDiscriminatorPipeline = prepareDiscriminatorPipeline;
+
+/*!
+ * Exports
+ */
+
+module.exports = Aggregate;
diff --git a/backend/node_modules/mongoose/lib/browser.js b/backend/node_modules/mongoose/lib/browser.js
new file mode 100644
index 0000000..12b0cbd
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/browser.js
@@ -0,0 +1,132 @@
+/* eslint-env browser */
+
+'use strict';
+
+require('./driver').set(require('./drivers/browser'));
+
+const DocumentProvider = require('./documentProvider.js');
+
+DocumentProvider.setBrowser(true);
+
+/**
+ * The [MongooseError](https://mongoosejs.com/docs/api/error.html#Error()) constructor.
+ *
+ * @method Error
+ * @api public
+ */
+
+exports.Error = require('./error/index');
+
+/**
+ * The Mongoose [Schema](https://mongoosejs.com/docs/api/schema.html#Schema()) constructor
+ *
+ * #### Example:
+ *
+ *     const mongoose = require('mongoose');
+ *     const Schema = mongoose.Schema;
+ *     const CatSchema = new Schema(..);
+ *
+ * @method Schema
+ * @api public
+ */
+
+exports.Schema = require('./schema');
+
+/**
+ * The various Mongoose Types.
+ *
+ * #### Example:
+ *
+ *     const mongoose = require('mongoose');
+ *     const array = mongoose.Types.Array;
+ *
+ * #### Types:
+ *
+ * - [Array](https://mongoosejs.com/docs/schematypes.html#arrays)
+ * - [Buffer](https://mongoosejs.com/docs/schematypes.html#buffers)
+ * - [Embedded](https://mongoosejs.com/docs/schematypes.html#schemas)
+ * - [DocumentArray](https://mongoosejs.com/docs/api/documentarraypath.html)
+ * - [Decimal128](https://mongoosejs.com/docs/api/decimal128.html#Decimal128())
+ * - [ObjectId](https://mongoosejs.com/docs/schematypes.html#objectids)
+ * - [Map](https://mongoosejs.com/docs/schematypes.html#maps)
+ * - [Subdocument](https://mongoosejs.com/docs/schematypes.html#schemas)
+ *
+ * Using this exposed access to the `ObjectId` type, we can construct ids on demand.
+ *
+ *     const ObjectId = mongoose.Types.ObjectId;
+ *     const id1 = new ObjectId;
+ *
+ * @property Types
+ * @api public
+ */
+exports.Types = require('./types');
+
+/**
+ * The Mongoose [VirtualType](https://mongoosejs.com/docs/api/virtualtype.html#VirtualType()) constructor
+ *
+ * @method VirtualType
+ * @api public
+ */
+exports.VirtualType = require('./virtualType');
+
+/**
+ * The various Mongoose SchemaTypes.
+ *
+ * #### Note:
+ *
+ * _Alias of mongoose.Schema.Types for backwards compatibility._
+ *
+ * @property SchemaTypes
+ * @see Schema.SchemaTypes https://mongoosejs.com/docs/api/schema.html#Schema.Types
+ * @api public
+ */
+
+exports.SchemaType = require('./schemaType.js');
+
+/**
+ * Internal utils
+ *
+ * @property utils
+ * @api private
+ */
+
+exports.utils = require('./utils.js');
+
+/**
+ * The Mongoose browser [Document](/api/document.html) constructor.
+ *
+ * @method Document
+ * @api public
+ */
+exports.Document = DocumentProvider();
+
+/**
+ * Return a new browser model. In the browser, a model is just
+ * a simplified document with a schema - it does **not** have
+ * functions like `findOne()`, etc.
+ *
+ * @method model
+ * @api public
+ * @param {String} name
+ * @param {Schema} schema
+ * @return Class
+ */
+exports.model = function(name, schema) {
+  class Model extends exports.Document {
+    constructor(obj, fields) {
+      super(obj, schema, fields);
+    }
+  }
+  Model.modelName = name;
+
+  return Model;
+};
+
+/*!
+ * Module exports.
+ */
+
+if (typeof window !== 'undefined') {
+  window.mongoose = module.exports;
+  window.Buffer = Buffer;
+}
diff --git a/backend/node_modules/mongoose/lib/browserDocument.js b/backend/node_modules/mongoose/lib/browserDocument.js
new file mode 100644
index 0000000..bf9b22a
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/browserDocument.js
@@ -0,0 +1,101 @@
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const NodeJSDocument = require('./document');
+const EventEmitter = require('events').EventEmitter;
+const MongooseError = require('./error/index');
+const Schema = require('./schema');
+const ObjectId = require('./types/objectid');
+const ValidationError = MongooseError.ValidationError;
+const applyHooks = require('./helpers/model/applyHooks');
+const isObject = require('./helpers/isObject');
+
+/**
+ * Document constructor.
+ *
+ * @param {Object} obj the values to set
+ * @param {Object} schema
+ * @param {Object} [fields] optional object containing the fields which were selected in the query returning this document and any populated paths data
+ * @param {Boolean} [skipId] bool, should we auto create an ObjectId _id
+ * @inherits NodeJS EventEmitter https://nodejs.org/api/events.html#class-eventemitter
+ * @event `init`: Emitted on a document after it has was retrieved from the db and fully hydrated by Mongoose.
+ * @event `save`: Emitted when the document is successfully saved
+ * @api private
+ */
+
+function Document(obj, schema, fields, skipId, skipInit) {
+  if (!(this instanceof Document)) {
+    return new Document(obj, schema, fields, skipId, skipInit);
+  }
+
+  if (isObject(schema) && !schema.instanceOfSchema) {
+    schema = new Schema(schema);
+  }
+
+  // When creating EmbeddedDocument, it already has the schema and he doesn't need the _id
+  schema = this.schema || schema;
+
+  // Generate ObjectId if it is missing, but it requires a scheme
+  if (!this.schema && schema.options._id) {
+    obj = obj || {};
+
+    if (obj._id === undefined) {
+      obj._id = new ObjectId();
+    }
+  }
+
+  if (!schema) {
+    throw new MongooseError.MissingSchemaError();
+  }
+
+  this.$__setSchema(schema);
+
+  NodeJSDocument.call(this, obj, fields, skipId, skipInit);
+
+  applyHooks(this, schema, { decorateDoc: true });
+
+  // apply methods
+  for (const m in schema.methods) {
+    this[m] = schema.methods[m];
+  }
+  // apply statics
+  for (const s in schema.statics) {
+    this[s] = schema.statics[s];
+  }
+}
+
+/*!
+ * Inherit from the NodeJS document
+ */
+
+Document.prototype = Object.create(NodeJSDocument.prototype);
+Document.prototype.constructor = Document;
+
+/*!
+ * ignore
+ */
+
+Document.events = new EventEmitter();
+
+/*!
+ * Browser doc exposes the event emitter API
+ */
+
+Document.$emitter = new EventEmitter();
+
+['on', 'once', 'emit', 'listeners', 'removeListener', 'setMaxListeners',
+  'removeAllListeners', 'addListener'].forEach(function(emitterFn) {
+  Document[emitterFn] = function() {
+    return Document.$emitter[emitterFn].apply(Document.$emitter, arguments);
+  };
+});
+
+/*!
+ * Module exports.
+ */
+
+Document.ValidationError = ValidationError;
+module.exports = exports = Document;
diff --git a/backend/node_modules/mongoose/lib/cast.js b/backend/node_modules/mongoose/lib/cast.js
new file mode 100644
index 0000000..03cbb34
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/cast.js
@@ -0,0 +1,444 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const CastError = require('./error/cast');
+const StrictModeError = require('./error/strict');
+const Types = require('./schema/index');
+const cast$expr = require('./helpers/query/cast$expr');
+const castString = require('./cast/string');
+const castTextSearch = require('./schema/operators/text');
+const get = require('./helpers/get');
+const getSchemaDiscriminatorByValue = require('./helpers/discriminator/getSchemaDiscriminatorByValue');
+const isOperator = require('./helpers/query/isOperator');
+const util = require('util');
+const isObject = require('./helpers/isObject');
+const isMongooseObject = require('./helpers/isMongooseObject');
+const utils = require('./utils');
+
+const ALLOWED_GEOWITHIN_GEOJSON_TYPES = ['Polygon', 'MultiPolygon'];
+
+/**
+ * Handles internal casting for query filters.
+ *
+ * @param {Schema} schema
+ * @param {Object} obj Object to cast
+ * @param {Object} [options] the query options
+ * @param {Boolean|"throw"} [options.strict] Wheter to enable all strict options
+ * @param {Boolean|"throw"} [options.strictQuery] Enable strict Queries
+ * @param {Boolean} [options.sanitizeFilter] avoid adding implict query selectors ($in)
+ * @param {Boolean} [options.upsert]
+ * @param {Query} [context] passed to setters
+ * @api private
+ */
+module.exports = function cast(schema, obj, options, context) {
+  if (Array.isArray(obj)) {
+    throw new Error('Query filter must be an object, got an array ', util.inspect(obj));
+  }
+
+  if (obj == null) {
+    return obj;
+  }
+
+  if (schema != null && schema.discriminators != null && obj[schema.options.discriminatorKey] != null) {
+    schema = getSchemaDiscriminatorByValue(schema, obj[schema.options.discriminatorKey]) || schema;
+  }
+
+  const paths = Object.keys(obj);
+  let i = paths.length;
+  let _keys;
+  let any$conditionals;
+  let schematype;
+  let nested;
+  let path;
+  let type;
+  let val;
+
+  options = options || {};
+
+  while (i--) {
+    path = paths[i];
+    val = obj[path];
+
+    if (path === '$or' || path === '$nor' || path === '$and') {
+      if (!Array.isArray(val)) {
+        throw new CastError('Array', val, path);
+      }
+      for (let k = val.length - 1; k >= 0; k--) {
+        if (val[k] == null || typeof val[k] !== 'object') {
+          throw new CastError('Object', val[k], path + '.' + k);
+        }
+        const beforeCastKeysLength = Object.keys(val[k]).length;
+        const discriminatorValue = val[k][schema.options.discriminatorKey];
+        if (discriminatorValue == null) {
+          val[k] = cast(schema, val[k], options, context);
+        } else {
+          const discriminatorSchema = getSchemaDiscriminatorByValue(context.schema, discriminatorValue);
+          val[k] = cast(discriminatorSchema ? discriminatorSchema : schema, val[k], options, context);
+        }
+
+        if (Object.keys(val[k]).length === 0 && beforeCastKeysLength !== 0) {
+          val.splice(k, 1);
+        }
+      }
+
+      // delete empty: {$or: []} -> {}
+      if (val.length === 0) {
+        delete obj[path];
+      }
+    } else if (path === '$where') {
+      type = typeof val;
+
+      if (type !== 'string' && type !== 'function') {
+        throw new Error('Must have a string or function for $where');
+      }
+
+      if (type === 'function') {
+        obj[path] = val.toString();
+      }
+
+      continue;
+    } else if (path === '$expr') {
+      val = cast$expr(val, schema);
+      continue;
+    } else if (path === '$elemMatch') {
+      val = cast(schema, val, options, context);
+    } else if (path === '$text') {
+      val = castTextSearch(val, path);
+    } else if (path === '$comment' && !schema.paths.hasOwnProperty('$comment')) {
+      val = castString(val, path);
+      obj[path] = val;
+    } else {
+      if (!schema) {
+        // no casting for Mixed types
+        continue;
+      }
+
+      schematype = schema.path(path);
+
+      // Check for embedded discriminator paths
+      if (!schematype) {
+        const split = path.split('.');
+        let j = split.length;
+        while (j--) {
+          const pathFirstHalf = split.slice(0, j).join('.');
+          const pathLastHalf = split.slice(j).join('.');
+          const _schematype = schema.path(pathFirstHalf);
+          const discriminatorKey = _schematype &&
+            _schematype.schema &&
+            _schematype.schema.options &&
+            _schematype.schema.options.discriminatorKey;
+
+          // gh-6027: if we haven't found the schematype but this path is
+          // underneath an embedded discriminator and the embedded discriminator
+          // key is in the query, use the embedded discriminator schema
+          if (_schematype != null &&
+            (_schematype.schema && _schematype.schema.discriminators) != null &&
+            discriminatorKey != null &&
+            pathLastHalf !== discriminatorKey) {
+            const discriminatorVal = get(obj, pathFirstHalf + '.' + discriminatorKey);
+            const discriminators = _schematype.schema.discriminators;
+            if (typeof discriminatorVal === 'string' && discriminators[discriminatorVal] != null) {
+
+              schematype = discriminators[discriminatorVal].path(pathLastHalf);
+            } else if (discriminatorVal != null &&
+              Object.keys(discriminatorVal).length === 1 &&
+              Array.isArray(discriminatorVal.$in) &&
+              discriminatorVal.$in.length === 1 &&
+              typeof discriminatorVal.$in[0] === 'string' &&
+              discriminators[discriminatorVal.$in[0]] != null) {
+              schematype = discriminators[discriminatorVal.$in[0]].path(pathLastHalf);
+            }
+          }
+        }
+      }
+
+      if (!schematype) {
+        // Handle potential embedded array queries
+        const split = path.split('.');
+        let j = split.length;
+        let pathFirstHalf;
+        let pathLastHalf;
+        let remainingConds;
+
+        // Find the part of the var path that is a path of the Schema
+        while (j--) {
+          pathFirstHalf = split.slice(0, j).join('.');
+          schematype = schema.path(pathFirstHalf);
+          if (schematype) {
+            break;
+          }
+        }
+
+        // If a substring of the input path resolves to an actual real path...
+        if (schematype) {
+          // Apply the casting; similar code for $elemMatch in schema/array.js
+          if (schematype.caster && schematype.caster.schema) {
+            remainingConds = {};
+            pathLastHalf = split.slice(j).join('.');
+            remainingConds[pathLastHalf] = val;
+
+            const ret = cast(schematype.caster.schema, remainingConds, options, context)[pathLastHalf];
+            if (ret === void 0) {
+              delete obj[path];
+            } else {
+              obj[path] = ret;
+            }
+          } else {
+            obj[path] = val;
+          }
+          continue;
+        }
+
+        if (isObject(val)) {
+          // handle geo schemas that use object notation
+          // { loc: { long: Number, lat: Number }
+
+          let geo = '';
+          if (val.$near) {
+            geo = '$near';
+          } else if (val.$nearSphere) {
+            geo = '$nearSphere';
+          } else if (val.$within) {
+            geo = '$within';
+          } else if (val.$geoIntersects) {
+            geo = '$geoIntersects';
+          } else if (val.$geoWithin) {
+            geo = '$geoWithin';
+          }
+
+          if (geo) {
+            const numbertype = new Types.Number('__QueryCasting__');
+            let value = val[geo];
+
+            if (val.$maxDistance != null) {
+              val.$maxDistance = numbertype.castForQuery(
+                null,
+                val.$maxDistance,
+                context
+              );
+            }
+            if (val.$minDistance != null) {
+              val.$minDistance = numbertype.castForQuery(
+                null,
+                val.$minDistance,
+                context
+              );
+            }
+
+            if (geo === '$within') {
+              const withinType = value.$center
+                  || value.$centerSphere
+                  || value.$box
+                  || value.$polygon;
+
+              if (!withinType) {
+                throw new Error('Bad $within parameter: ' + JSON.stringify(val));
+              }
+
+              value = withinType;
+            } else if (geo === '$near' &&
+                typeof value.type === 'string' && Array.isArray(value.coordinates)) {
+              // geojson; cast the coordinates
+              value = value.coordinates;
+            } else if ((geo === '$near' || geo === '$nearSphere' || geo === '$geoIntersects') &&
+                value.$geometry && typeof value.$geometry.type === 'string' &&
+                Array.isArray(value.$geometry.coordinates)) {
+              if (value.$maxDistance != null) {
+                value.$maxDistance = numbertype.castForQuery(
+                  null,
+                  value.$maxDistance,
+                  context
+                );
+              }
+              if (value.$minDistance != null) {
+                value.$minDistance = numbertype.castForQuery(
+                  null,
+                  value.$minDistance,
+                  context
+                );
+              }
+              if (isMongooseObject(value.$geometry)) {
+                value.$geometry = value.$geometry.toObject({
+                  transform: false,
+                  virtuals: false
+                });
+              }
+              value = value.$geometry.coordinates;
+            } else if (geo === '$geoWithin') {
+              if (value.$geometry) {
+                if (isMongooseObject(value.$geometry)) {
+                  value.$geometry = value.$geometry.toObject({ virtuals: false });
+                }
+                const geoWithinType = value.$geometry.type;
+                if (ALLOWED_GEOWITHIN_GEOJSON_TYPES.indexOf(geoWithinType) === -1) {
+                  throw new Error('Invalid geoJSON type for $geoWithin "' +
+                    geoWithinType + '", must be "Polygon" or "MultiPolygon"');
+                }
+                value = value.$geometry.coordinates;
+              } else {
+                value = value.$box || value.$polygon || value.$center ||
+                  value.$centerSphere;
+                if (isMongooseObject(value)) {
+                  value = value.toObject({ virtuals: false });
+                }
+              }
+            }
+
+            _cast(value, numbertype, context);
+            continue;
+          }
+        }
+
+        if (schema.nested[path]) {
+          continue;
+        }
+
+        const strict = 'strict' in options ? options.strict : schema.options.strict;
+        const strictQuery = getStrictQuery(options, schema._userProvidedOptions, schema.options, context);
+        if (options.upsert && strict) {
+          if (strict === 'throw') {
+            throw new StrictModeError(path);
+          }
+          throw new StrictModeError(path, 'Path "' + path + '" is not in ' +
+            'schema, strict mode is `true`, and upsert is `true`.');
+        } if (strictQuery === 'throw') {
+          throw new StrictModeError(path, 'Path "' + path + '" is not in ' +
+            'schema and strictQuery is \'throw\'.');
+        } else if (strictQuery) {
+          delete obj[path];
+        }
+      } else if (val == null) {
+        continue;
+      } else if (utils.isPOJO(val)) {
+        any$conditionals = Object.keys(val).some(isOperator);
+
+        if (!any$conditionals) {
+          obj[path] = schematype.castForQuery(
+            null,
+            val,
+            context
+          );
+        } else {
+          const ks = Object.keys(val);
+          let $cond;
+          let k = ks.length;
+
+          while (k--) {
+            $cond = ks[k];
+            nested = val[$cond];
+            if ($cond === '$elemMatch') {
+              if (nested && schematype != null && schematype.schema != null) {
+                cast(schematype.schema, nested, options, context);
+              } else if (nested && schematype != null && schematype.$isMongooseArray) {
+                if (utils.isPOJO(nested) && nested.$not != null) {
+                  cast(schema, nested, options, context);
+                } else {
+                  val[$cond] = schematype.castForQuery(
+                    $cond,
+                    nested,
+                    context
+                  );
+                }
+              }
+            } else if ($cond === '$not') {
+              if (nested && schematype) {
+                _keys = Object.keys(nested);
+                if (_keys.length && isOperator(_keys[0])) {
+                  for (const key in nested) {
+                    nested[key] = schematype.castForQuery(
+                      key,
+                      nested[key],
+                      context
+                    );
+                  }
+                } else {
+                  val[$cond] = schematype.castForQuery(
+                    $cond,
+                    nested,
+                    context
+                  );
+                }
+                continue;
+              }
+            } else {
+              val[$cond] = schematype.castForQuery(
+                $cond,
+                nested,
+                context
+              );
+            }
+
+          }
+        }
+      } else if (Array.isArray(val) && ['Buffer', 'Array'].indexOf(schematype.instance) === -1 && !options.sanitizeFilter) {
+        const casted = [];
+        const valuesArray = val;
+
+        for (const _val of valuesArray) {
+          casted.push(schematype.castForQuery(
+            null,
+            _val,
+            context
+          ));
+        }
+
+        obj[path] = { $in: casted };
+      } else {
+        obj[path] = schematype.castForQuery(
+          null,
+          val,
+          context
+        );
+      }
+    }
+  }
+
+  return obj;
+};
+
+function _cast(val, numbertype, context) {
+  if (Array.isArray(val)) {
+    val.forEach(function(item, i) {
+      if (Array.isArray(item) || isObject(item)) {
+        return _cast(item, numbertype, context);
+      }
+      val[i] = numbertype.castForQuery(null, item, context);
+    });
+  } else {
+    const nearKeys = Object.keys(val);
+    let nearLen = nearKeys.length;
+    while (nearLen--) {
+      const nkey = nearKeys[nearLen];
+      const item = val[nkey];
+      if (Array.isArray(item) || isObject(item)) {
+        _cast(item, numbertype, context);
+        val[nkey] = item;
+      } else {
+        val[nkey] = numbertype.castForQuery({ val: item, context: context });
+      }
+    }
+  }
+}
+
+function getStrictQuery(queryOptions, schemaUserProvidedOptions, schemaOptions, context) {
+  if ('strictQuery' in queryOptions) {
+    return queryOptions.strictQuery;
+  }
+  if ('strictQuery' in schemaUserProvidedOptions) {
+    return schemaUserProvidedOptions.strictQuery;
+  }
+  const mongooseOptions = context &&
+    context.mongooseCollection &&
+    context.mongooseCollection.conn &&
+    context.mongooseCollection.conn.base &&
+    context.mongooseCollection.conn.base.options;
+  if (mongooseOptions) {
+    if ('strictQuery' in mongooseOptions) {
+      return mongooseOptions.strictQuery;
+    }
+  }
+  return schemaOptions.strictQuery;
+}
diff --git a/backend/node_modules/mongoose/lib/cast/bigint.js b/backend/node_modules/mongoose/lib/cast/bigint.js
new file mode 100644
index 0000000..20e01ae
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/cast/bigint.js
@@ -0,0 +1,36 @@
+'use strict';
+
+const assert = require('assert');
+const { Long } = require('bson');
+
+/**
+ * Given a value, cast it to a BigInt, or throw an `Error` if the value
+ * cannot be casted. `null` and `undefined` are considered valid.
+ *
+ * @param {Any} value
+ * @return {Number}
+ * @throws {Error} if `value` is not one of the allowed values
+ * @api private
+ */
+
+module.exports = function castBigInt(val) {
+  if (val == null) {
+    return val;
+  }
+  if (val === '') {
+    return null;
+  }
+  if (typeof val === 'bigint') {
+    return val;
+  }
+
+  if (val instanceof Long) {
+    return val.toBigInt();
+  }
+
+  if (typeof val === 'string' || typeof val === 'number') {
+    return BigInt(val);
+  }
+
+  assert.ok(false);
+};
diff --git a/backend/node_modules/mongoose/lib/cast/boolean.js b/backend/node_modules/mongoose/lib/cast/boolean.js
new file mode 100644
index 0000000..aaa1fb0
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/cast/boolean.js
@@ -0,0 +1,32 @@
+'use strict';
+
+const CastError = require('../error/cast');
+
+/**
+ * Given a value, cast it to a boolean, or throw a `CastError` if the value
+ * cannot be casted. `null` and `undefined` are considered valid.
+ *
+ * @param {Any} value
+ * @param {String} [path] optional the path to set on the CastError
+ * @return {Boolean|null|undefined}
+ * @throws {CastError} if `value` is not one of the allowed values
+ * @api private
+ */
+
+module.exports = function castBoolean(value, path) {
+  if (module.exports.convertToTrue.has(value)) {
+    return true;
+  }
+  if (module.exports.convertToFalse.has(value)) {
+    return false;
+  }
+
+  if (value == null) {
+    return value;
+  }
+
+  throw new CastError('boolean', value, path);
+};
+
+module.exports.convertToTrue = new Set([true, 'true', 1, '1', 'yes']);
+module.exports.convertToFalse = new Set([false, 'false', 0, '0', 'no']);
diff --git a/backend/node_modules/mongoose/lib/cast/date.js b/backend/node_modules/mongoose/lib/cast/date.js
new file mode 100644
index 0000000..c7f9b04
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/cast/date.js
@@ -0,0 +1,41 @@
+'use strict';
+
+const assert = require('assert');
+
+module.exports = function castDate(value) {
+  // Support empty string because of empty form values. Originally introduced
+  // in https://github.com/Automattic/mongoose/commit/efc72a1898fc3c33a319d915b8c5463a22938dfe
+  if (value == null || value === '') {
+    return null;
+  }
+
+  if (value instanceof Date) {
+    assert.ok(!isNaN(value.valueOf()));
+
+    return value;
+  }
+
+  let date;
+
+  assert.ok(typeof value !== 'boolean');
+
+  if (value instanceof Number || typeof value === 'number') {
+    date = new Date(value);
+  } else if (typeof value === 'string' && !isNaN(Number(value)) && (Number(value) >= 275761 || Number(value) < -271820)) {
+    // string representation of milliseconds take this path
+    date = new Date(Number(value));
+  } else if (typeof value.valueOf === 'function') {
+    // support for moment.js. This is also the path strings will take because
+    // strings have a `valueOf()`
+    date = new Date(value.valueOf());
+  } else {
+    // fallback
+    date = new Date(value);
+  }
+
+  if (!isNaN(date.valueOf())) {
+    return date;
+  }
+
+  assert.ok(false);
+};
diff --git a/backend/node_modules/mongoose/lib/cast/decimal128.js b/backend/node_modules/mongoose/lib/cast/decimal128.js
new file mode 100644
index 0000000..2bec997
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/cast/decimal128.js
@@ -0,0 +1,39 @@
+'use strict';
+
+const Decimal128Type = require('../types/decimal128');
+const assert = require('assert');
+
+module.exports = function castDecimal128(value) {
+  if (value == null) {
+    return value;
+  }
+
+  if (typeof value === 'object' && typeof value.$numberDecimal === 'string') {
+    return Decimal128Type.fromString(value.$numberDecimal);
+  }
+
+  if (value instanceof Decimal128Type) {
+    return value;
+  }
+
+  if (typeof value === 'string') {
+    return Decimal128Type.fromString(value);
+  }
+
+  if (typeof Buffer === 'function' && Buffer.isBuffer(value)) {
+    return new Decimal128Type(value);
+  }
+  if (typeof Uint8Array === 'function' && value instanceof Uint8Array) {
+    return new Decimal128Type(value);
+  }
+
+  if (typeof value === 'number') {
+    return Decimal128Type.fromString(String(value));
+  }
+
+  if (typeof value.valueOf === 'function' && typeof value.valueOf() === 'string') {
+    return Decimal128Type.fromString(value.valueOf());
+  }
+
+  assert.ok(false);
+};
diff --git a/backend/node_modules/mongoose/lib/cast/double.js b/backend/node_modules/mongoose/lib/cast/double.js
new file mode 100644
index 0000000..5dfc6c1
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/cast/double.js
@@ -0,0 +1,50 @@
+'use strict';
+
+const assert = require('assert');
+const BSON = require('bson');
+const isBsonType = require('../helpers/isBsonType');
+
+/**
+ * Given a value, cast it to a IEEE 754-2008 floating point, or throw an `Error` if the value
+ * cannot be casted. `null`, `undefined`, and `NaN` are considered valid inputs.
+ *
+ * @param {Any} value
+ * @return {Number}
+ * @throws {Error} if `value` does not represent a IEEE 754-2008 floating point. If casting from a string, see [BSON Double.fromString API documentation](https://mongodb.github.io/node-mongodb-native/Next/classes/BSON.Double.html#fromString)
+ * @api private
+ */
+
+module.exports = function castDouble(val) {
+  if (val == null || val === '') {
+    return null;
+  }
+
+  let coercedVal;
+  if (isBsonType(val, 'Long')) {
+    coercedVal = val.toNumber();
+  } else if (typeof val === 'string') {
+    try {
+      coercedVal = BSON.Double.fromString(val);
+      return coercedVal;
+    } catch {
+      assert.ok(false);
+    }
+  } else if (typeof val === 'object') {
+    const tempVal = val.valueOf() ?? val.toString();
+    // ex: { a: 'im an object, valueOf: () => 'helloworld' } // throw an error
+    if (typeof tempVal === 'string') {
+      try {
+        coercedVal = BSON.Double.fromString(val);
+        return coercedVal;
+      } catch {
+        assert.ok(false);
+      }
+    } else {
+      coercedVal = Number(tempVal);
+    }
+  } else {
+    coercedVal = Number(val);
+  }
+
+  return new BSON.Double(coercedVal);
+};
diff --git a/backend/node_modules/mongoose/lib/cast/int32.js b/backend/node_modules/mongoose/lib/cast/int32.js
new file mode 100644
index 0000000..34eeae8
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/cast/int32.js
@@ -0,0 +1,36 @@
+'use strict';
+
+const isBsonType = require('../helpers/isBsonType');
+const assert = require('assert');
+
+/**
+ * Given a value, cast it to a Int32, or throw an `Error` if the value
+ * cannot be casted. `null` and `undefined` are considered valid.
+ *
+ * @param {Any} value
+ * @return {Number}
+ * @throws {Error} if `value` does not represent an integer, or is outside the bounds of an 32-bit integer.
+ * @api private
+ */
+
+module.exports = function castInt32(val) {
+  if (val == null) {
+    return val;
+  }
+  if (val === '') {
+    return null;
+  }
+
+  const coercedVal = isBsonType(val, 'Long') ? val.toNumber() : Number(val);
+
+  const INT32_MAX = 0x7FFFFFFF;
+  const INT32_MIN = -0x80000000;
+
+  if (coercedVal === (coercedVal | 0) &&
+      coercedVal >= INT32_MIN &&
+      coercedVal <= INT32_MAX
+  ) {
+    return coercedVal;
+  }
+  assert.ok(false);
+};
diff --git a/backend/node_modules/mongoose/lib/cast/number.js b/backend/node_modules/mongoose/lib/cast/number.js
new file mode 100644
index 0000000..cf0362d
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/cast/number.js
@@ -0,0 +1,42 @@
+'use strict';
+
+const assert = require('assert');
+
+/**
+ * Given a value, cast it to a number, or throw an `Error` if the value
+ * cannot be casted. `null` and `undefined` are considered valid.
+ *
+ * @param {Any} value
+ * @return {Number}
+ * @throws {Error} if `value` is not one of the allowed values
+ * @api private
+ */
+
+module.exports = function castNumber(val) {
+  if (val == null) {
+    return val;
+  }
+  if (val === '') {
+    return null;
+  }
+
+  if (typeof val === 'string' || typeof val === 'boolean') {
+    val = Number(val);
+  }
+
+  assert.ok(!isNaN(val));
+  if (val instanceof Number) {
+    return val.valueOf();
+  }
+  if (typeof val === 'number') {
+    return val;
+  }
+  if (!Array.isArray(val) && typeof val.valueOf === 'function') {
+    return Number(val.valueOf());
+  }
+  if (val.toString && !Array.isArray(val) && val.toString() == Number(val)) {
+    return Number(val);
+  }
+
+  assert.ok(false);
+};
diff --git a/backend/node_modules/mongoose/lib/cast/objectid.js b/backend/node_modules/mongoose/lib/cast/objectid.js
new file mode 100644
index 0000000..095a0a1
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/cast/objectid.js
@@ -0,0 +1,29 @@
+'use strict';
+
+const isBsonType = require('../helpers/isBsonType');
+const ObjectId = require('../types/objectid');
+
+module.exports = function castObjectId(value) {
+  if (value == null) {
+    return value;
+  }
+
+  if (isBsonType(value, 'ObjectId')) {
+    return value;
+  }
+
+  if (value._id) {
+    if (isBsonType(value._id, 'ObjectId')) {
+      return value._id;
+    }
+    if (value._id.toString instanceof Function) {
+      return new ObjectId(value._id.toString());
+    }
+  }
+
+  if (value.toString instanceof Function) {
+    return new ObjectId(value.toString());
+  }
+
+  return new ObjectId(value);
+};
diff --git a/backend/node_modules/mongoose/lib/cast/string.js b/backend/node_modules/mongoose/lib/cast/string.js
new file mode 100644
index 0000000..aabb822
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/cast/string.js
@@ -0,0 +1,37 @@
+'use strict';
+
+const CastError = require('../error/cast');
+
+/**
+ * Given a value, cast it to a string, or throw a `CastError` if the value
+ * cannot be casted. `null` and `undefined` are considered valid.
+ *
+ * @param {Any} value
+ * @param {String} [path] optional the path to set on the CastError
+ * @return {string|null|undefined}
+ * @throws {CastError}
+ * @api private
+ */
+
+module.exports = function castString(value, path) {
+  // If null or undefined
+  if (value == null) {
+    return value;
+  }
+
+  // handle documents being passed
+  if (value._id && typeof value._id === 'string') {
+    return value._id;
+  }
+
+  // Re: gh-647 and gh-3030, we're ok with casting using `toString()`
+  // **unless** its the default Object.toString, because "[object Object]"
+  // doesn't really qualify as useful data
+  if (value.toString &&
+      value.toString !== Object.prototype.toString &&
+      !Array.isArray(value)) {
+    return value.toString();
+  }
+
+  throw new CastError('string', value, path);
+};
diff --git a/backend/node_modules/mongoose/lib/cast/uuid.js b/backend/node_modules/mongoose/lib/cast/uuid.js
new file mode 100644
index 0000000..6e296bf
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/cast/uuid.js
@@ -0,0 +1,78 @@
+'use strict';
+
+const MongooseBuffer = require('../types/buffer');
+
+const UUID_FORMAT = /[0-9a-f]{8}-[0-9a-f]{4}-[0-9][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}/i;
+const Binary = MongooseBuffer.Binary;
+
+module.exports = function castUUID(value) {
+  if (value == null) {
+    return value;
+  }
+
+  function newBuffer(initbuff) {
+    const buff = new MongooseBuffer(initbuff);
+    buff._subtype = 4;
+    return buff;
+  }
+
+  if (typeof value === 'string') {
+    if (UUID_FORMAT.test(value)) {
+      return stringToBinary(value);
+    } else {
+      throw new Error(`"${value}" is not a valid UUID string`);
+    }
+  }
+
+  if (Buffer.isBuffer(value)) {
+    return newBuffer(value);
+  }
+
+  if (value instanceof Binary) {
+    return newBuffer(value.value(true));
+  }
+
+  // Re: gh-647 and gh-3030, we're ok with casting using `toString()`
+  // **unless** its the default Object.toString, because "[object Object]"
+  // doesn't really qualify as useful data
+  if (value.toString && value.toString !== Object.prototype.toString) {
+    if (UUID_FORMAT.test(value.toString())) {
+      return stringToBinary(value.toString());
+    }
+  }
+
+  throw new Error(`"${value}" cannot be casted to a UUID`);
+};
+
+module.exports.UUID_FORMAT = UUID_FORMAT;
+
+/**
+ * Helper function to convert the input hex-string to a buffer
+ * @param {String} hex The hex string to convert
+ * @returns {Buffer} The hex as buffer
+ * @api private
+ */
+
+function hex2buffer(hex) {
+  // use buffer built-in function to convert from hex-string to buffer
+  const buff = hex != null && Buffer.from(hex, 'hex');
+  return buff;
+}
+
+/**
+ * Convert a String to Binary
+ * @param {String} uuidStr The value to process
+ * @returns {MongooseBuffer} The binary to store
+ * @api private
+ */
+
+function stringToBinary(uuidStr) {
+  // Protect against undefined & throwing err
+  if (typeof uuidStr !== 'string') uuidStr = '';
+  const hex = uuidStr.replace(/[{}-]/g, ''); // remove extra characters
+  const bytes = hex2buffer(hex);
+  const buff = new MongooseBuffer(bytes);
+  buff._subtype = 4;
+
+  return buff;
+}
diff --git a/backend/node_modules/mongoose/lib/collection.js b/backend/node_modules/mongoose/lib/collection.js
new file mode 100644
index 0000000..117a8c6
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/collection.js
@@ -0,0 +1,327 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const EventEmitter = require('events').EventEmitter;
+const STATES = require('./connectionState');
+const immediate = require('./helpers/immediate');
+
+/**
+ * Abstract Collection constructor
+ *
+ * This is the base class that drivers inherit from and implement.
+ *
+ * @param {String} name name of the collection
+ * @param {Connection} conn A MongooseConnection instance
+ * @param {Object} [opts] optional collection options
+ * @api public
+ */
+
+function Collection(name, conn, opts) {
+  if (opts === void 0) {
+    opts = {};
+  }
+
+  this.opts = opts;
+  this.name = name;
+  this.collectionName = name;
+  this.conn = conn;
+  this.queue = [];
+  this.buffer = true;
+  this.emitter = new EventEmitter();
+
+  if (STATES.connected === this.conn.readyState) {
+    this.onOpen();
+  }
+}
+
+/**
+ * The collection name
+ *
+ * @api public
+ * @property name
+ */
+
+Collection.prototype.name;
+
+/**
+ * The collection name
+ *
+ * @api public
+ * @property collectionName
+ */
+
+Collection.prototype.collectionName;
+
+/**
+ * The Connection instance
+ *
+ * @api public
+ * @property conn
+ */
+
+Collection.prototype.conn;
+
+/**
+ * Called when the database connects
+ *
+ * @api private
+ */
+
+Collection.prototype.onOpen = function() {
+  this.buffer = false;
+  immediate(() => this.doQueue());
+};
+
+/**
+ * Called when the database disconnects
+ *
+ * @api private
+ */
+
+Collection.prototype.onClose = function() {};
+
+/**
+ * Queues a method for later execution when its
+ * database connection opens.
+ *
+ * @param {String} name name of the method to queue
+ * @param {Array} args arguments to pass to the method when executed
+ * @api private
+ */
+
+Collection.prototype.addQueue = function(name, args) {
+  this.queue.push([name, args]);
+  return this;
+};
+
+/**
+ * Removes a queued method
+ *
+ * @param {String} name name of the method to queue
+ * @param {Array} args arguments to pass to the method when executed
+ * @api private
+ */
+
+Collection.prototype.removeQueue = function(name, args) {
+  const index = this.queue.findIndex(v => v[0] === name && v[1] === args);
+  if (index === -1) {
+    return false;
+  }
+  this.queue.splice(index, 1);
+  return true;
+};
+
+/**
+ * Executes all queued methods and clears the queue.
+ *
+ * @api private
+ */
+
+Collection.prototype.doQueue = function() {
+  for (const method of this.queue) {
+    if (typeof method[0] === 'function') {
+      method[0].apply(this, method[1]);
+    } else {
+      this[method[0]].apply(this, method[1]);
+    }
+  }
+  this.queue = [];
+  const _this = this;
+  immediate(function() {
+    _this.emitter.emit('queue');
+  });
+  return this;
+};
+
+/**
+ * Abstract method that drivers must implement.
+ */
+
+Collection.prototype.ensureIndex = function() {
+  throw new Error('Collection#ensureIndex unimplemented by driver');
+};
+
+/**
+ * Abstract method that drivers must implement.
+ */
+
+Collection.prototype.createIndex = function() {
+  throw new Error('Collection#createIndex unimplemented by driver');
+};
+
+/**
+ * Abstract method that drivers must implement.
+ */
+
+Collection.prototype.findAndModify = function() {
+  throw new Error('Collection#findAndModify unimplemented by driver');
+};
+
+/**
+ * Abstract method that drivers must implement.
+ */
+
+Collection.prototype.findOneAndUpdate = function() {
+  throw new Error('Collection#findOneAndUpdate unimplemented by driver');
+};
+
+/**
+ * Abstract method that drivers must implement.
+ */
+
+Collection.prototype.findOneAndDelete = function() {
+  throw new Error('Collection#findOneAndDelete unimplemented by driver');
+};
+
+/**
+ * Abstract method that drivers must implement.
+ */
+
+Collection.prototype.findOneAndReplace = function() {
+  throw new Error('Collection#findOneAndReplace unimplemented by driver');
+};
+
+/**
+ * Abstract method that drivers must implement.
+ */
+
+Collection.prototype.findOne = function() {
+  throw new Error('Collection#findOne unimplemented by driver');
+};
+
+/**
+ * Abstract method that drivers must implement.
+ */
+
+Collection.prototype.find = function() {
+  throw new Error('Collection#find unimplemented by driver');
+};
+
+/**
+ * Abstract method that drivers must implement.
+ */
+
+Collection.prototype.insert = function() {
+  throw new Error('Collection#insert unimplemented by driver');
+};
+
+/**
+ * Abstract method that drivers must implement.
+ */
+
+Collection.prototype.insertOne = function() {
+  throw new Error('Collection#insertOne unimplemented by driver');
+};
+
+/**
+ * Abstract method that drivers must implement.
+ */
+
+Collection.prototype.insertMany = function() {
+  throw new Error('Collection#insertMany unimplemented by driver');
+};
+
+/**
+ * Abstract method that drivers must implement.
+ */
+
+Collection.prototype.save = function() {
+  throw new Error('Collection#save unimplemented by driver');
+};
+
+/**
+ * Abstract method that drivers must implement.
+ */
+
+Collection.prototype.updateOne = function() {
+  throw new Error('Collection#updateOne unimplemented by driver');
+};
+
+/**
+ * Abstract method that drivers must implement.
+ */
+
+Collection.prototype.updateMany = function() {
+  throw new Error('Collection#updateMany unimplemented by driver');
+};
+
+/**
+ * Abstract method that drivers must implement.
+ */
+
+Collection.prototype.deleteOne = function() {
+  throw new Error('Collection#deleteOne unimplemented by driver');
+};
+
+/**
+ * Abstract method that drivers must implement.
+ */
+
+Collection.prototype.deleteMany = function() {
+  throw new Error('Collection#deleteMany unimplemented by driver');
+};
+
+/**
+ * Abstract method that drivers must implement.
+ */
+
+Collection.prototype.getIndexes = function() {
+  throw new Error('Collection#getIndexes unimplemented by driver');
+};
+
+/**
+ * Abstract method that drivers must implement.
+ */
+
+Collection.prototype.watch = function() {
+  throw new Error('Collection#watch unimplemented by driver');
+};
+
+/*!
+ * ignore
+ */
+
+Collection.prototype._shouldBufferCommands = function _shouldBufferCommands() {
+  const opts = this.opts;
+
+  if (opts.bufferCommands != null) {
+    return opts.bufferCommands;
+  }
+  if (opts && opts.schemaUserProvidedOptions != null && opts.schemaUserProvidedOptions.bufferCommands != null) {
+    return opts.schemaUserProvidedOptions.bufferCommands;
+  }
+
+  return this.conn._shouldBufferCommands();
+};
+
+/*!
+ * ignore
+ */
+
+Collection.prototype._getBufferTimeoutMS = function _getBufferTimeoutMS() {
+  const conn = this.conn;
+  const opts = this.opts;
+
+  if (opts.bufferTimeoutMS != null) {
+    return opts.bufferTimeoutMS;
+  }
+  if (opts && opts.schemaUserProvidedOptions != null && opts.schemaUserProvidedOptions.bufferTimeoutMS != null) {
+    return opts.schemaUserProvidedOptions.bufferTimeoutMS;
+  }
+  if (conn.config.bufferTimeoutMS != null) {
+    return conn.config.bufferTimeoutMS;
+  }
+  if (conn.base != null && conn.base.get('bufferTimeoutMS') != null) {
+    return conn.base.get('bufferTimeoutMS');
+  }
+  return 10000;
+};
+
+/*!
+ * Module exports.
+ */
+
+module.exports = Collection;
diff --git a/backend/node_modules/mongoose/lib/connection.js b/backend/node_modules/mongoose/lib/connection.js
new file mode 100644
index 0000000..dbb10b1
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/connection.js
@@ -0,0 +1,1773 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const ChangeStream = require('./cursor/changeStream');
+const EventEmitter = require('events').EventEmitter;
+const Schema = require('./schema');
+const STATES = require('./connectionState');
+const MongooseBulkWriteError = require('./error/bulkWriteError');
+const MongooseError = require('./error/index');
+const ServerSelectionError = require('./error/serverSelection');
+const SyncIndexesError = require('./error/syncIndexes');
+const applyPlugins = require('./helpers/schema/applyPlugins');
+const clone = require('./helpers/clone');
+const driver = require('./driver');
+const get = require('./helpers/get');
+const getDefaultBulkwriteResult = require('./helpers/getDefaultBulkwriteResult');
+const immediate = require('./helpers/immediate');
+const utils = require('./utils');
+const CreateCollectionsError = require('./error/createCollectionsError');
+const castBulkWrite = require('./helpers/model/castBulkWrite');
+const { modelSymbol } = require('./helpers/symbols');
+const isPromise = require('./helpers/isPromise');
+
+const arrayAtomicsSymbol = require('./helpers/symbols').arrayAtomicsSymbol;
+const sessionNewDocuments = require('./helpers/symbols').sessionNewDocuments;
+
+/**
+ * A list of authentication mechanisms that don't require a password for authentication.
+ * This is used by the authMechanismDoesNotRequirePassword method.
+ *
+ * @api private
+ */
+const noPasswordAuthMechanisms = [
+  'MONGODB-X509'
+];
+
+/**
+ * Connection constructor
+ *
+ * For practical reasons, a Connection equals a Db.
+ *
+ * @param {Mongoose} base a mongoose instance
+ * @inherits NodeJS EventEmitter https://nodejs.org/api/events.html#class-eventemitter
+ * @event `connecting`: Emitted when `connection.openUri()` is executed on this connection.
+ * @event `connected`: Emitted when this connection successfully connects to the db. May be emitted _multiple_ times in `reconnected` scenarios.
+ * @event `open`: Emitted after we `connected` and `onOpen` is executed on all of this connection's models.
+ * @event `disconnecting`: Emitted when `connection.close()` was executed.
+ * @event `disconnected`: Emitted after getting disconnected from the db.
+ * @event `close`: Emitted after we `disconnected` and `onClose` executed on all of this connection's models.
+ * @event `reconnected`: Emitted after we `connected` and subsequently `disconnected`, followed by successfully another successful connection.
+ * @event `error`: Emitted when an error occurs on this connection.
+ * @event `operation-start`: Emitted when a call to the MongoDB Node.js driver, like a `find()` or `insertOne()`, happens on any collection tied to this connection.
+ * @event `operation-end`: Emitted when a call to the MongoDB Node.js driver, like a `find()` or `insertOne()`, either succeeds or errors.
+ * @api public
+ */
+
+function Connection(base) {
+  this.base = base;
+  this.collections = {};
+  this.models = {};
+  this.config = {};
+  this.replica = false;
+  this.options = null;
+  this.otherDbs = []; // FIXME: To be replaced with relatedDbs
+  this.relatedDbs = {}; // Hashmap of other dbs that share underlying connection
+  this.states = STATES;
+  this._readyState = STATES.disconnected;
+  this._closeCalled = false;
+  this._hasOpened = false;
+  this.plugins = [];
+  if (typeof base === 'undefined' || !base.connections.length) {
+    this.id = 0;
+  } else {
+    this.id = base.nextConnectionId;
+  }
+
+  // Internal queue of objects `{ fn, ctx, args }` that Mongoose calls when this connection is successfully
+  // opened. In `onOpen()`, Mongoose calls every entry in `_queue` and empties the queue.
+  this._queue = [];
+}
+
+/*!
+ * Inherit from EventEmitter
+ */
+
+Object.setPrototypeOf(Connection.prototype, EventEmitter.prototype);
+
+/**
+ * Connection ready state
+ *
+ * - 0 = disconnected
+ * - 1 = connected
+ * - 2 = connecting
+ * - 3 = disconnecting
+ *
+ * Each state change emits its associated event name.
+ *
+ * #### Example:
+ *
+ *     conn.on('connected', callback);
+ *     conn.on('disconnected', callback);
+ *
+ * @property readyState
+ * @memberOf Connection
+ * @instance
+ * @api public
+ */
+
+Object.defineProperty(Connection.prototype, 'readyState', {
+  get: function() {
+    // If connection thinks it is connected, but we haven't received a heartbeat in 2 heartbeat intervals,
+    // that likely means the connection is stale (potentially due to frozen AWS Lambda container)
+    if (
+      this._readyState === STATES.connected &&
+      this._lastHeartbeatAt != null &&
+      // LoadBalanced topology (behind haproxy, including Atlas serverless instances) don't use heartbeats,
+      // so we can't use this check in that case.
+      this.client?.topology?.s?.description?.type !== 'LoadBalanced' &&
+      typeof this.client?.topology?.s?.description?.heartbeatFrequencyMS === 'number' &&
+      Date.now() - this._lastHeartbeatAt >= this.client.topology.s.description.heartbeatFrequencyMS * 2) {
+      return STATES.disconnected;
+    }
+    return this._readyState;
+  },
+  set: function(val) {
+    if (!(val in STATES)) {
+      throw new Error('Invalid connection state: ' + val);
+    }
+
+    if (this._readyState !== val) {
+      this._readyState = val;
+      // [legacy] loop over the otherDbs on this connection and change their state
+      for (const db of this.otherDbs) {
+        db.readyState = val;
+      }
+
+      if (STATES.connected === val) {
+        this._hasOpened = true;
+      }
+
+      this.emit(STATES[val]);
+    }
+  }
+});
+
+/**
+ * Gets the value of the option `key`. Equivalent to `conn.options[key]`
+ *
+ * #### Example:
+ *
+ *     conn.get('test'); // returns the 'test' value
+ *
+ * @param {String} key
+ * @method get
+ * @api public
+ */
+
+Connection.prototype.get = function getOption(key) {
+  if (this.config.hasOwnProperty(key)) {
+    return this.config[key];
+  }
+
+  return get(this.options, key);
+};
+
+/**
+ * Sets the value of the option `key`. Equivalent to `conn.options[key] = val`
+ *
+ * Supported options include:
+ *
+ * - `maxTimeMS`: Set [`maxTimeMS`](https://mongoosejs.com/docs/api/query.html#Query.prototype.maxTimeMS()) for all queries on this connection.
+ * - 'debug': If `true`, prints the operations mongoose sends to MongoDB to the console. If a writable stream is passed, it will log to that stream, without colorization. If a callback function is passed, it will receive the collection name, the method name, then all arugments passed to the method. For example, if you wanted to replicate the default logging, you could output from the callback `Mongoose: ${collectionName}.${methodName}(${methodArgs.join(', ')})`.
+ *
+ * #### Example:
+ *
+ *     conn.set('test', 'foo');
+ *     conn.get('test'); // 'foo'
+ *     conn.options.test; // 'foo'
+ *
+ * @param {String} key
+ * @param {Any} val
+ * @method set
+ * @api public
+ */
+
+Connection.prototype.set = function setOption(key, val) {
+  if (this.config.hasOwnProperty(key)) {
+    this.config[key] = val;
+    return val;
+  }
+
+  this.options = this.options || {};
+  this.options[key] = val;
+  return val;
+};
+
+/**
+ * A hash of the collections associated with this connection
+ *
+ * @property collections
+ * @memberOf Connection
+ * @instance
+ * @api public
+ */
+
+Connection.prototype.collections;
+
+/**
+ * The name of the database this connection points to.
+ *
+ * #### Example:
+ *
+ *     mongoose.createConnection('mongodb://127.0.0.1:27017/mydb').name; // "mydb"
+ *
+ * @property name
+ * @memberOf Connection
+ * @instance
+ * @api public
+ */
+
+Connection.prototype.name;
+
+/**
+ * A [POJO](https://masteringjs.io/tutorials/fundamentals/pojo) containing
+ * a map from model names to models. Contains all models that have been
+ * added to this connection using [`Connection#model()`](https://mongoosejs.com/docs/api/connection.html#Connection.prototype.model()).
+ *
+ * #### Example:
+ *
+ *     const conn = mongoose.createConnection();
+ *     const Test = conn.model('Test', mongoose.Schema({ name: String }));
+ *
+ *     Object.keys(conn.models).length; // 1
+ *     conn.models.Test === Test; // true
+ *
+ * @property models
+ * @memberOf Connection
+ * @instance
+ * @api public
+ */
+
+Connection.prototype.models;
+
+/**
+ * A number identifier for this connection. Used for debugging when
+ * you have [multiple connections](https://mongoosejs.com/docs/connections.html#multiple_connections).
+ *
+ * #### Example:
+ *
+ *     // The default connection has `id = 0`
+ *     mongoose.connection.id; // 0
+ *
+ *     // If you create a new connection, Mongoose increments id
+ *     const conn = mongoose.createConnection();
+ *     conn.id; // 1
+ *
+ * @property id
+ * @memberOf Connection
+ * @instance
+ * @api public
+ */
+
+Connection.prototype.id;
+
+/**
+ * The plugins that will be applied to all models created on this connection.
+ *
+ * #### Example:
+ *
+ *     const db = mongoose.createConnection('mongodb://127.0.0.1:27017/mydb');
+ *     db.plugin(() => console.log('Applied'));
+ *     db.plugins.length; // 1
+ *
+ *     db.model('Test', new Schema({})); // Prints "Applied"
+ *
+ * @property plugins
+ * @memberOf Connection
+ * @instance
+ * @api public
+ */
+
+Object.defineProperty(Connection.prototype, 'plugins', {
+  configurable: false,
+  enumerable: true,
+  writable: true
+});
+
+/**
+ * The host name portion of the URI. If multiple hosts, such as a replica set,
+ * this will contain the first host name in the URI
+ *
+ * #### Example:
+ *
+ *     mongoose.createConnection('mongodb://127.0.0.1:27017/mydb').host; // "127.0.0.1"
+ *
+ * @property host
+ * @memberOf Connection
+ * @instance
+ * @api public
+ */
+
+Object.defineProperty(Connection.prototype, 'host', {
+  configurable: true,
+  enumerable: true,
+  writable: true
+});
+
+/**
+ * The port portion of the URI. If multiple hosts, such as a replica set,
+ * this will contain the port from the first host name in the URI.
+ *
+ * #### Example:
+ *
+ *     mongoose.createConnection('mongodb://127.0.0.1:27017/mydb').port; // 27017
+ *
+ * @property port
+ * @memberOf Connection
+ * @instance
+ * @api public
+ */
+
+Object.defineProperty(Connection.prototype, 'port', {
+  configurable: true,
+  enumerable: true,
+  writable: true
+});
+
+/**
+ * The username specified in the URI
+ *
+ * #### Example:
+ *
+ *     mongoose.createConnection('mongodb://val:psw@127.0.0.1:27017/mydb').user; // "val"
+ *
+ * @property user
+ * @memberOf Connection
+ * @instance
+ * @api public
+ */
+
+Object.defineProperty(Connection.prototype, 'user', {
+  configurable: true,
+  enumerable: true,
+  writable: true
+});
+
+/**
+ * The password specified in the URI
+ *
+ * #### Example:
+ *
+ *     mongoose.createConnection('mongodb://val:psw@127.0.0.1:27017/mydb').pass; // "psw"
+ *
+ * @property pass
+ * @memberOf Connection
+ * @instance
+ * @api public
+ */
+
+Object.defineProperty(Connection.prototype, 'pass', {
+  configurable: true,
+  enumerable: true,
+  writable: true
+});
+
+/**
+ * The mongodb.Db instance, set when the connection is opened
+ *
+ * @property db
+ * @memberOf Connection
+ * @instance
+ * @api public
+ */
+
+Connection.prototype.db;
+
+/**
+ * The MongoClient instance this connection uses to talk to MongoDB. Mongoose automatically sets this property
+ * when the connection is opened.
+ *
+ * @property client
+ * @memberOf Connection
+ * @instance
+ * @api public
+ */
+
+Connection.prototype.client;
+
+/**
+ * A hash of the global options that are associated with this connection
+ *
+ * @property config
+ * @memberOf Connection
+ * @instance
+ * @api public
+ */
+
+Connection.prototype.config;
+
+/**
+ * Helper for `createCollection()`. Will explicitly create the given collection
+ * with specified options. Used to create [capped collections](https://www.mongodb.com/docs/manual/core/capped-collections/)
+ * and [views](https://www.mongodb.com/docs/manual/core/views/) from mongoose.
+ *
+ * Options are passed down without modification to the [MongoDB driver's `createCollection()` function](https://mongodb.github.io/node-mongodb-native/4.9/classes/Db.html#createCollection)
+ *
+ * @method createCollection
+ * @param {string} collection The collection to create
+ * @param {Object} [options] see [MongoDB driver docs](https://mongodb.github.io/node-mongodb-native/4.9/classes/Db.html#createCollection)
+ * @return {Promise}
+ * @api public
+ */
+
+Connection.prototype.createCollection = async function createCollection(collection, options) {
+  if (typeof options === 'function' || (arguments.length >= 3 && typeof arguments[2] === 'function')) {
+    throw new MongooseError('Connection.prototype.createCollection() no longer accepts a callback');
+  }
+
+  await this._waitForConnect();
+
+  return this.db.createCollection(collection, options);
+};
+
+/**
+ * _Requires MongoDB Server 8.0 or greater_. Executes bulk write operations across multiple models in a single operation.
+ * You must specify the `model` for each operation: Mongoose will use `model` for casting and validation, as well as
+ * determining which collection to apply the operation to.
+ *
+ * #### Example:
+ *     const Test = mongoose.model('Test', new Schema({ name: String }));
+ *
+ *     await db.bulkWrite([
+ *       { model: Test, name: 'insertOne', document: { name: 'test1' } }, // Can specify model as a Model class...
+ *       { model: 'Test', name: 'insertOne', document: { name: 'test2' } } // or as a model name
+ *     ], { ordered: false });
+ *
+ * @method bulkWrite
+ * @param {Array} ops
+ * @param {Object} [options]
+ * @param {Boolean} [options.ordered] If false, perform unordered operations. If true, perform ordered operations.
+ * @param {Session} [options.session] The session to use for the operation.
+ * @return {Promise}
+ * @see MongoDB https://www.mongodb.com/docs/manual/reference/command/bulkWrite/#mongodb-dbcommand-dbcmd.bulkWrite
+ * @api public
+ */
+
+
+Connection.prototype.bulkWrite = async function bulkWrite(ops, options) {
+  await this._waitForConnect();
+  options = options || {};
+
+  const ordered = options.ordered == null ? true : options.ordered;
+  const asyncLocalStorage = this.base.transactionAsyncLocalStorage?.getStore();
+  if ((!options || !options.hasOwnProperty('session')) && asyncLocalStorage?.session != null) {
+    options = { ...options, session: asyncLocalStorage.session };
+  }
+
+  const now = this.base.now();
+
+  let res = null;
+  if (ordered) {
+    const opsToSend = [];
+    for (const op of ops) {
+      if (typeof op.model !== 'string' && !op.model?.[modelSymbol]) {
+        throw new MongooseError('Must specify model in Connection.prototype.bulkWrite() operations');
+      }
+      const Model = op.model[modelSymbol] ? op.model : this.model(op.model);
+
+      if (op.name == null) {
+        throw new MongooseError('Must specify operation name in Connection.prototype.bulkWrite()');
+      }
+      if (!castBulkWrite.cast.hasOwnProperty(op.name)) {
+        throw new MongooseError(`Unrecognized bulkWrite() operation name ${op.name}`);
+      }
+
+      await castBulkWrite.cast[op.name](Model, op, options, now);
+      opsToSend.push({ ...op, namespace: Model.namespace() });
+    }
+
+    res = await this.client.bulkWrite(opsToSend, options);
+  } else {
+    const validOps = [];
+    const validOpIndexes = [];
+    let validationErrors = [];
+    const asyncValidations = [];
+    const results = [];
+    for (let i = 0; i < ops.length; ++i) {
+      const op = ops[i];
+      if (typeof op.model !== 'string' && !op.model?.[modelSymbol]) {
+        const error = new MongooseError('Must specify model in Connection.prototype.bulkWrite() operations');
+        validationErrors.push({ index: i, error: error });
+        results[i] = error;
+        continue;
+      }
+      let Model;
+      try {
+        Model = op.model[modelSymbol] ? op.model : this.model(op.model);
+      } catch (error) {
+        validationErrors.push({ index: i, error: error });
+        continue;
+      }
+      if (op.name == null) {
+        const error = new MongooseError('Must specify operation name in Connection.prototype.bulkWrite()');
+        validationErrors.push({ index: i, error: error });
+        results[i] = error;
+        continue;
+      }
+      if (!castBulkWrite.cast.hasOwnProperty(op.name)) {
+        const error = new MongooseError(`Unrecognized bulkWrite() operation name ${op.name}`);
+        validationErrors.push({ index: i, error: error });
+        results[i] = error;
+        continue;
+      }
+
+      let maybePromise = null;
+      try {
+        maybePromise = castBulkWrite.cast[op.name](Model, op, options, now);
+      } catch (error) {
+        validationErrors.push({ index: i, error: error });
+        results[i] = error;
+        continue;
+      }
+      if (isPromise(maybePromise)) {
+        asyncValidations.push(
+          maybePromise.then(
+            () => {
+              validOps.push({ ...op, namespace: Model.namespace() });
+              validOpIndexes.push(i);
+            },
+            error => {
+              validationErrors.push({ index: i, error: error });
+              results[i] = error;
+            }
+          )
+        );
+      } else {
+        validOps.push({ ...op, namespace: Model.namespace() });
+        validOpIndexes.push(i);
+      }
+    }
+
+    if (asyncValidations.length > 0) {
+      await Promise.all(asyncValidations);
+    }
+
+    validationErrors = validationErrors.
+      sort((v1, v2) => v1.index - v2.index).
+      map(v => v.error);
+
+    if (validOps.length === 0) {
+      if (options.throwOnValidationError && validationErrors.length) {
+        throw new MongooseBulkWriteError(
+          validationErrors,
+          results,
+          res,
+          'bulkWrite'
+        );
+      }
+      return getDefaultBulkwriteResult();
+    }
+
+    let error;
+    [res, error] = await this.client.bulkWrite(validOps, options).
+      then(res => ([res, null])).
+      catch(err => ([null, err]));
+
+    if (error) {
+      if (validationErrors.length > 0) {
+        error.mongoose = error.mongoose || {};
+        error.mongoose.validationErrors = validationErrors;
+      }
+    }
+
+    for (let i = 0; i < validOpIndexes.length; ++i) {
+      results[validOpIndexes[i]] = null;
+    }
+    if (validationErrors.length > 0) {
+      if (options.throwOnValidationError) {
+        throw new MongooseBulkWriteError(
+          validationErrors,
+          results,
+          res,
+          'bulkWrite'
+        );
+      } else {
+        res.mongoose = res.mongoose || {};
+        res.mongoose.validationErrors = validationErrors;
+        res.mongoose.results = results;
+      }
+    }
+  }
+
+  return res;
+};
+
+/**
+ * Calls `createCollection()` on a models in a series.
+ *
+ * @method createCollections
+ * @param {Boolean} continueOnError When true, will continue to create collections and create a new error class for the collections that errored.
+ * @returns {Promise}
+ * @api public
+ */
+
+Connection.prototype.createCollections = async function createCollections(options = {}) {
+  const result = {};
+  const errorsMap = { };
+
+  const { continueOnError } = options;
+  delete options.continueOnError;
+  for (const model of Object.values(this.models)) {
+    try {
+      result[model.modelName] = await model.createCollection({});
+    } catch (err) {
+      if (!continueOnError) {
+        errorsMap[model.modelName] = err;
+        break;
+      } else {
+        result[model.modelName] = err;
+      }
+    }
+  }
+
+  if (!continueOnError && Object.keys(errorsMap).length) {
+    const message = Object.entries(errorsMap).map(([modelName, err]) => `${modelName}: ${err.message}`).join(', ');
+    const createCollectionsError = new CreateCollectionsError(message, errorsMap);
+    throw createCollectionsError;
+  }
+  return result;
+};
+
+/**
+ * A convenience wrapper for `connection.client.withSession()`.
+ *
+ * #### Example:
+ *
+ *     await conn.withSession(async session => {
+ *       const doc = await TestModel.findOne().session(session);
+ *     });
+ *
+ * @method withSession
+ * @param {Function} executor called with 1 argument: a `ClientSession` instance
+ * @return {Promise} resolves to the return value of the executor function
+ * @api public
+ */
+
+Connection.prototype.withSession = async function withSession(executor) {
+  if (arguments.length === 0) {
+    throw new Error('Please provide an executor function');
+  }
+  return await this.client.withSession(executor);
+};
+
+/**
+ * _Requires MongoDB >= 3.6.0._ Starts a [MongoDB session](https://www.mongodb.com/docs/manual/release-notes/3.6/#client-sessions)
+ * for benefits like causal consistency, [retryable writes](https://www.mongodb.com/docs/manual/core/retryable-writes/),
+ * and [transactions](https://thecodebarbarian.com/a-node-js-perspective-on-mongodb-4-transactions.html).
+ *
+ * #### Example:
+ *
+ *     const session = await conn.startSession();
+ *     let doc = await Person.findOne({ name: 'Ned Stark' }, null, { session });
+ *     await doc.deleteOne();
+ *     // `doc` will always be null, even if reading from a replica set
+ *     // secondary. Without causal consistency, it is possible to
+ *     // get a doc back from the below query if the query reads from a
+ *     // secondary that is experiencing replication lag.
+ *     doc = await Person.findOne({ name: 'Ned Stark' }, null, { session, readPreference: 'secondary' });
+ *
+ *
+ * @method startSession
+ * @param {Object} [options] see the [mongodb driver options](https://mongodb.github.io/node-mongodb-native/4.9/classes/MongoClient.html#startSession)
+ * @param {Boolean} [options.causalConsistency=true] set to false to disable causal consistency
+ * @return {Promise<ClientSession>} promise that resolves to a MongoDB driver `ClientSession`
+ * @api public
+ */
+
+Connection.prototype.startSession = async function startSession(options) {
+  if (arguments.length >= 2 && typeof arguments[1] === 'function') {
+    throw new MongooseError('Connection.prototype.startSession() no longer accepts a callback');
+  }
+
+  await this._waitForConnect();
+
+  const session = this.client.startSession(options);
+  return session;
+};
+
+/**
+ * _Requires MongoDB >= 3.6.0._ Executes the wrapped async function
+ * in a transaction. Mongoose will commit the transaction if the
+ * async function executes successfully and attempt to retry if
+ * there was a retriable error.
+ *
+ * Calls the MongoDB driver's [`session.withTransaction()`](https://mongodb.github.io/node-mongodb-native/4.9/classes/ClientSession.html#withTransaction),
+ * but also handles resetting Mongoose document state as shown below.
+ *
+ * #### Example:
+ *
+ *     const doc = new Person({ name: 'Will Riker' });
+ *     await db.transaction(async function setRank(session) {
+ *       doc.rank = 'Captain';
+ *       await doc.save({ session });
+ *       doc.isNew; // false
+ *
+ *       // Throw an error to abort the transaction
+ *       throw new Error('Oops!');
+ *     },{ readPreference: 'primary' }).catch(() => {});
+ *
+ *     // true, `transaction()` reset the document's state because the
+ *     // transaction was aborted.
+ *     doc.isNew;
+ *
+ * @method transaction
+ * @param {Function} fn Function to execute in a transaction
+ * @param {mongodb.TransactionOptions} [options] Optional settings for the transaction
+ * @return {Promise<Any>} promise that is fulfilled if Mongoose successfully committed the transaction, or rejects if the transaction was aborted or if Mongoose failed to commit the transaction. If fulfilled, the promise resolves to a MongoDB command result.
+ * @api public
+ */
+
+Connection.prototype.transaction = function transaction(fn, options) {
+  return this.startSession().then(session => {
+    session[sessionNewDocuments] = new Map();
+    return session.withTransaction(() => _wrapUserTransaction(fn, session, this.base), options).
+      then(res => {
+        delete session[sessionNewDocuments];
+        return res;
+      }).
+      catch(err => {
+        delete session[sessionNewDocuments];
+        throw err;
+      }).
+      finally(() => {
+        session.endSession().catch(() => {});
+      });
+  });
+};
+
+/*!
+ * Reset document state in between transaction retries re: gh-13698
+ */
+
+async function _wrapUserTransaction(fn, session, mongoose) {
+  try {
+    const res = mongoose.transactionAsyncLocalStorage == null
+      ? await fn(session)
+      : await new Promise(resolve => {
+        mongoose.transactionAsyncLocalStorage.run(
+          { session },
+          () => resolve(fn(session))
+        );
+      });
+    return res;
+  } catch (err) {
+    _resetSessionDocuments(session);
+    throw err;
+  }
+}
+
+/*!
+ * If transaction was aborted, we need to reset newly inserted documents' `isNew`.
+ */
+function _resetSessionDocuments(session) {
+  for (const doc of session[sessionNewDocuments].keys()) {
+    const state = session[sessionNewDocuments].get(doc);
+    if (state.hasOwnProperty('isNew')) {
+      doc.$isNew = state.isNew;
+    }
+    if (state.hasOwnProperty('versionKey')) {
+      doc.set(doc.schema.options.versionKey, state.versionKey);
+    }
+
+    if (state.modifiedPaths.length > 0 && doc.$__.activePaths.states.modify == null) {
+      doc.$__.activePaths.states.modify = {};
+    }
+    for (const path of state.modifiedPaths) {
+      const currentState = doc.$__.activePaths.paths[path];
+      if (currentState != null) {
+        delete doc.$__.activePaths[currentState][path];
+      }
+      doc.$__.activePaths.paths[path] = 'modify';
+      doc.$__.activePaths.states.modify[path] = true;
+    }
+
+    for (const path of state.atomics.keys()) {
+      const val = doc.$__getValue(path);
+      if (val == null) {
+        continue;
+      }
+      val[arrayAtomicsSymbol] = state.atomics.get(path);
+    }
+  }
+}
+
+/**
+ * Helper for `dropCollection()`. Will delete the given collection, including
+ * all documents and indexes.
+ *
+ * @method dropCollection
+ * @param {string} collection The collection to delete
+ * @return {Promise}
+ * @api public
+ */
+
+Connection.prototype.dropCollection = async function dropCollection(collection) {
+  if (arguments.length >= 2 && typeof arguments[1] === 'function') {
+    throw new MongooseError('Connection.prototype.dropCollection() no longer accepts a callback');
+  }
+
+  await this._waitForConnect();
+
+  return this.db.dropCollection(collection);
+};
+
+/**
+ * Waits for connection to be established, so the connection has a `client`
+ *
+ * @return Promise
+ * @api private
+ */
+
+Connection.prototype._waitForConnect = async function _waitForConnect() {
+  if ((this.readyState === STATES.connecting || this.readyState === STATES.disconnected) && this._shouldBufferCommands()) {
+    await new Promise(resolve => {
+      this._queue.push({ fn: resolve });
+    });
+  }
+};
+
+/**
+ * Helper for MongoDB Node driver's `listCollections()`.
+ * Returns an array of collection objects.
+ *
+ * @method listCollections
+ * @return {Promise<Collection[]>}
+ * @api public
+ */
+
+Connection.prototype.listCollections = async function listCollections() {
+  await this._waitForConnect();
+
+  const cursor = this.db.listCollections();
+  return await cursor.toArray();
+};
+
+/**
+ * Helper for MongoDB Node driver's `listDatabases()`.
+ * Returns an object with a `databases` property that contains an
+ * array of database objects.
+ *
+ * #### Example:
+ *     const { databases } = await mongoose.connection.listDatabases();
+ *     databases; // [{ name: 'mongoose_test', sizeOnDisk: 0, empty: false }]
+ *
+ * @method listCollections
+ * @return {Promise<{ databases: Array<{ name: string }> }>}
+ * @api public
+ */
+
+Connection.prototype.listDatabases = async function listDatabases() {
+  // Implemented in `lib/drivers/node-mongodb-native/connection.js`
+  throw new MongooseError('listDatabases() not implemented by driver');
+};
+
+/**
+ * Helper for `dropDatabase()`. Deletes the given database, including all
+ * collections, documents, and indexes.
+ *
+ * #### Example:
+ *
+ *     const conn = mongoose.createConnection('mongodb://127.0.0.1:27017/mydb');
+ *     // Deletes the entire 'mydb' database
+ *     await conn.dropDatabase();
+ *
+ * @method dropDatabase
+ * @return {Promise}
+ * @api public
+ */
+
+Connection.prototype.dropDatabase = async function dropDatabase() {
+  if (arguments.length >= 1 && typeof arguments[0] === 'function') {
+    throw new MongooseError('Connection.prototype.dropDatabase() no longer accepts a callback');
+  }
+
+  await this._waitForConnect();
+
+  // If `dropDatabase()` is called, this model's collection will not be
+  // init-ed. It is sufficiently common to call `dropDatabase()` after
+  // `mongoose.connect()` but before creating models that we want to
+  // support this. See gh-6796
+  for (const model of Object.values(this.models)) {
+    delete model.$init;
+  }
+
+  return this.db.dropDatabase();
+};
+
+/*!
+ * ignore
+ */
+
+Connection.prototype._shouldBufferCommands = function _shouldBufferCommands() {
+  if (this.config.bufferCommands != null) {
+    return this.config.bufferCommands;
+  }
+  if (this.base.get('bufferCommands') != null) {
+    return this.base.get('bufferCommands');
+  }
+  return true;
+};
+
+/**
+ * error
+ *
+ * Graceful error handling, passes error to callback
+ * if available, else emits error on the connection.
+ *
+ * @param {Error} err
+ * @param {Function} callback optional
+ * @emits "error" Emits the `error` event with the given `err`, unless a callback is specified
+ * @returns {Promise|null} Returns a rejected Promise if no `callback` is given.
+ * @api private
+ */
+
+Connection.prototype.error = function error(err, callback) {
+  if (callback) {
+    callback(err);
+    return null;
+  }
+  if (this.listeners('error').length > 0) {
+    this.emit('error', err);
+  }
+  return Promise.reject(err);
+};
+
+/**
+ * Called when the connection is opened
+ *
+ * @emits "open"
+ * @api private
+ */
+
+Connection.prototype.onOpen = function() {
+  this.readyState = STATES.connected;
+
+  for (const d of this._queue) {
+    d.fn.apply(d.ctx, d.args);
+  }
+  this._queue = [];
+
+  // avoid having the collection subscribe to our event emitter
+  // to prevent 0.3 warning
+  for (const i in this.collections) {
+    if (utils.object.hasOwnProperty(this.collections, i)) {
+      this.collections[i].onOpen();
+    }
+  }
+
+  this.emit('open');
+};
+
+/**
+ * Opens the connection with a URI using `MongoClient.connect()`.
+ *
+ * @param {String} uri The URI to connect with.
+ * @param {Object} [options] Passed on to [`MongoClient.connect`](https://mongodb.github.io/node-mongodb-native/4.9/classes/MongoClient.html#connect-1)
+ * @param {Boolean} [options.bufferCommands=true] Mongoose specific option. Set to false to [disable buffering](https://mongoosejs.com/docs/faq.html#callback_never_executes) on all models associated with this connection.
+ * @param {Number} [options.bufferTimeoutMS=10000] Mongoose specific option. If `bufferCommands` is true, Mongoose will throw an error after `bufferTimeoutMS` if the operation is still buffered.
+ * @param {String} [options.dbName] The name of the database we want to use. If not provided, use database name from connection string.
+ * @param {String} [options.user] username for authentication, equivalent to `options.auth.user`. Maintained for backwards compatibility.
+ * @param {String} [options.pass] password for authentication, equivalent to `options.auth.password`. Maintained for backwards compatibility.
+ * @param {Number} [options.maxPoolSize=100] The maximum number of sockets the MongoDB driver will keep open for this connection. Keep in mind that MongoDB only allows one operation per socket at a time, so you may want to increase this if you find you have a few slow queries that are blocking faster queries from proceeding. See [Slow Trains in MongoDB and Node.js](https://thecodebarbarian.com/slow-trains-in-mongodb-and-nodejs).
+ * @param {Number} [options.minPoolSize=0] The minimum number of sockets the MongoDB driver will keep open for this connection. Keep in mind that MongoDB only allows one operation per socket at a time, so you may want to increase this if you find you have a few slow queries that are blocking faster queries from proceeding. See [Slow Trains in MongoDB and Node.js](https://thecodebarbarian.com/slow-trains-in-mongodb-and-nodejs).
+ * @param {Number} [options.serverSelectionTimeoutMS] If `useUnifiedTopology = true`, the MongoDB driver will try to find a server to send any given operation to, and keep retrying for `serverSelectionTimeoutMS` milliseconds before erroring out. If not set, the MongoDB driver defaults to using `30000` (30 seconds).
+ * @param {Number} [options.heartbeatFrequencyMS] If `useUnifiedTopology = true`, the MongoDB driver sends a heartbeat every `heartbeatFrequencyMS` to check on the status of the connection. A heartbeat is subject to `serverSelectionTimeoutMS`, so the MongoDB driver will retry failed heartbeats for up to 30 seconds by default. Mongoose only emits a `'disconnected'` event after a heartbeat has failed, so you may want to decrease this setting to reduce the time between when your server goes down and when Mongoose emits `'disconnected'`. We recommend you do **not** set this setting below 1000, too many heartbeats can lead to performance degradation.
+ * @param {Boolean} [options.autoIndex=true] Mongoose-specific option. Set to false to disable automatic index creation for all models associated with this connection.
+ * @param {Class} [options.promiseLibrary] Sets the [underlying driver's promise library](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/MongoClientOptions.html#promiseLibrary).
+ * @param {Number} [options.socketTimeoutMS=0] How long the MongoDB driver will wait before killing a socket due to inactivity _after initial connection_. A socket may be inactive because of either no activity or a long-running operation. `socketTimeoutMS` defaults to 0, which means Node.js will not time out the socket due to inactivity. This option is passed to [Node.js `socket#setTimeout()` function](https://nodejs.org/api/net.html#net_socket_settimeout_timeout_callback) after the MongoDB driver successfully completes.
+ * @param {Number} [options.family=0] Passed transparently to [Node.js' `dns.lookup()`](https://nodejs.org/api/dns.html#dns_dns_lookup_hostname_options_callback) function. May be either `0, `4`, or `6`. `4` means use IPv4 only, `6` means use IPv6 only, `0` means try both.
+ * @param {Boolean} [options.autoCreate=false] Set to `true` to make Mongoose automatically call `createCollection()` on every model created on this connection.
+ * @returns {Promise<Connection>}
+ * @api public
+ */
+
+Connection.prototype.openUri = async function openUri(uri, options) {
+  if (this.readyState === STATES.connecting || this.readyState === STATES.connected) {
+    if (this._connectionString === uri) {
+      return this;
+    }
+  }
+
+  this._closeCalled = false;
+
+  // Internal option to skip `await this.$initialConnection` in
+  // this function for `createConnection()`. Because otherwise
+  // `createConnection()` would have an uncatchable error.
+  let _fireAndForget = false;
+  if (options && '_fireAndForget' in options) {
+    _fireAndForget = options._fireAndForget;
+    delete options._fireAndForget;
+  }
+
+  try {
+    _validateArgs.apply(arguments);
+  } catch (err) {
+    if (_fireAndForget) {
+      throw err;
+    }
+    this.$initialConnection = Promise.reject(err);
+    throw err;
+  }
+
+  this.$initialConnection = this.createClient(uri, options).
+    then(() => this).
+    catch(err => {
+      this.readyState = STATES.disconnected;
+      if (this.listeners('error').length > 0) {
+        immediate(() => this.emit('error', err));
+      }
+      throw err;
+    });
+
+  for (const model of Object.values(this.models)) {
+    // Errors handled internally, so safe to ignore error
+    model.init().catch(function $modelInitNoop() {});
+  }
+
+  // `createConnection()` calls this `openUri()` function without
+  // awaiting on the result, so we set this option to rely on
+  // `asPromise()` to handle any errors.
+  if (_fireAndForget) {
+    return this;
+  }
+
+  try {
+    await this.$initialConnection;
+  } catch (err) {
+    throw _handleConnectionErrors(err);
+  }
+
+  return this;
+};
+
+/**
+ * Listen to events in the Connection
+ *
+ * @param {String} event The event to listen on
+ * @param {Function} callback
+ * @see Connection#readyState https://mongoosejs.com/docs/api/connection.html#Connection.prototype.readyState
+ *
+ * @method on
+ * @instance
+ * @memberOf Connection
+ * @api public
+ */
+
+// Treat `on('error')` handlers as handling the initialConnection promise
+// to avoid uncaught exceptions when using `on('error')`. See gh-14377.
+Connection.prototype.on = function on(event, callback) {
+  if (event === 'error' && this.$initialConnection) {
+    this.$initialConnection.catch(() => {});
+  }
+  return EventEmitter.prototype.on.call(this, event, callback);
+};
+
+/**
+ * Listen to a event once in the Connection
+ *
+ * @param {String} event The event to listen on
+ * @param {Function} callback
+ * @see Connection#readyState https://mongoosejs.com/docs/api/connection.html#Connection.prototype.readyState
+ *
+ * @method once
+ * @instance
+ * @memberOf Connection
+ * @api public
+ */
+
+// Treat `on('error')` handlers as handling the initialConnection promise
+// to avoid uncaught exceptions when using `on('error')`. See gh-14377.
+Connection.prototype.once = function on(event, callback) {
+  if (event === 'error' && this.$initialConnection) {
+    this.$initialConnection.catch(() => {});
+  }
+  return EventEmitter.prototype.once.call(this, event, callback);
+};
+
+/*!
+ * ignore
+ */
+
+function _validateArgs(uri, options, callback) {
+  if (typeof options === 'function' && callback == null) {
+    throw new MongooseError('Connection.prototype.openUri() no longer accepts a callback');
+  } else if (typeof callback === 'function') {
+    throw new MongooseError('Connection.prototype.openUri() no longer accepts a callback');
+  }
+}
+
+/*!
+ * ignore
+ */
+
+function _handleConnectionErrors(err) {
+  if (err?.name === 'MongoServerSelectionError') {
+    const originalError = err;
+    err = new ServerSelectionError();
+    err.assimilateError(originalError);
+  }
+
+  return err;
+}
+
+/**
+ * Destroy the connection. Similar to [`.close`](https://mongoosejs.com/docs/api/connection.html#Connection.prototype.close()),
+ * but also removes the connection from Mongoose's `connections` list and prevents the
+ * connection from ever being re-opened.
+ *
+ * @param {Boolean} [force]
+ * @returns {Promise}
+ */
+
+Connection.prototype.destroy = async function destroy(force) {
+  if (typeof force === 'function' || (arguments.length === 2 && typeof arguments[1] === 'function')) {
+    throw new MongooseError('Connection.prototype.destroy() no longer accepts a callback');
+  }
+
+  if (force != null && typeof force === 'object') {
+    this.$wasForceClosed = !!force.force;
+  } else {
+    this.$wasForceClosed = !!force;
+  }
+
+  return this._close(force, true);
+};
+
+/**
+ * Closes the connection
+ *
+ * @param {Boolean} [force] optional
+ * @return {Promise}
+ * @api public
+ */
+
+Connection.prototype.close = async function close(force) {
+  if (typeof force === 'function' || (arguments.length === 2 && typeof arguments[1] === 'function')) {
+    throw new MongooseError('Connection.prototype.close() no longer accepts a callback');
+  }
+
+  if (force != null && typeof force === 'object') {
+    this.$wasForceClosed = !!force.force;
+  } else {
+    this.$wasForceClosed = !!force;
+  }
+
+  for (const model of Object.values(this.models)) {
+    // If manually disconnecting, make sure to clear each model's `$init`
+    // promise, so Mongoose knows to re-run `init()` in case the
+    // connection is re-opened. See gh-12047.
+    delete model.$init;
+  }
+
+  return this._close(force, false);
+};
+
+/**
+ * Handles closing the connection
+ *
+ * @param {Boolean} force
+ * @param {Boolean} destroy
+ * @returns {Connection} this
+ * @api private
+ */
+Connection.prototype._close = async function _close(force, destroy) {
+  const _this = this;
+  const closeCalled = this._closeCalled;
+  this._closeCalled = true;
+  this._destroyCalled = destroy;
+  if (this.client != null) {
+    this.client._closeCalled = true;
+    this.client._destroyCalled = destroy;
+  }
+
+  const conn = this;
+  switch (this.readyState) {
+    case STATES.disconnected:
+      if (destroy && this.base.connections.indexOf(conn) !== -1) {
+        this.base.connections.splice(this.base.connections.indexOf(conn), 1);
+      }
+      if (!closeCalled) {
+        await this.doClose(force);
+        this.onClose(force);
+      }
+      break;
+
+    case STATES.connected:
+      this.readyState = STATES.disconnecting;
+      await this.doClose(force);
+      if (destroy && _this.base.connections.indexOf(conn) !== -1) {
+        this.base.connections.splice(this.base.connections.indexOf(conn), 1);
+      }
+      this.onClose(force);
+
+      break;
+    case STATES.connecting:
+      return new Promise((resolve, reject) => {
+        const _rerunClose = () => {
+          this.removeListener('open', _rerunClose);
+          this.removeListener('error', _rerunClose);
+          if (destroy) {
+            this.destroy(force).then(resolve, reject);
+          } else {
+            this.close(force).then(resolve, reject);
+          }
+        };
+
+        this.once('open', _rerunClose);
+        this.once('error', _rerunClose);
+      });
+
+    case STATES.disconnecting:
+      return new Promise(resolve => {
+        this.once('close', () => {
+          if (destroy && this.base.connections.indexOf(conn) !== -1) {
+            this.base.connections.splice(this.base.connections.indexOf(conn), 1);
+          }
+          resolve();
+        });
+      });
+  }
+
+  return this;
+};
+
+/**
+ * Abstract method that drivers must implement.
+ *
+ * @api private
+ */
+
+Connection.prototype.doClose = function doClose() {
+  throw new Error('Connection#doClose unimplemented by driver');
+};
+
+/**
+ * Called when the connection closes
+ *
+ * @emits "close"
+ * @api private
+ */
+
+Connection.prototype.onClose = function onClose(force) {
+  this.readyState = STATES.disconnected;
+
+  // avoid having the collection subscribe to our event emitter
+  // to prevent 0.3 warning
+  for (const i in this.collections) {
+    if (utils.object.hasOwnProperty(this.collections, i)) {
+      this.collections[i].onClose(force);
+    }
+  }
+
+  this.emit('close', force);
+
+  for (const db of this.otherDbs) {
+    this._destroyCalled ? db.destroy({ force: force, skipCloseClient: true }) : db.close({ force: force, skipCloseClient: true });
+  }
+};
+
+/**
+ * Retrieves a raw collection instance, creating it if not cached.
+ * This method returns a thin wrapper around a [MongoDB Node.js driver collection]([MongoDB Node.js driver collection](https://mongodb.github.io/node-mongodb-native/Next/classes/Collection.html)).
+ * Using a Collection bypasses Mongoose middleware, validation, and casting,
+ * letting you use [MongoDB Node.js driver](https://mongodb.github.io/node-mongodb-native/) functionality directly.
+ *
+ * @param {String} name of the collection
+ * @param {Object} [options] optional collection options
+ * @return {Collection} collection instance
+ * @api public
+ */
+
+Connection.prototype.collection = function(name, options) {
+  const defaultOptions = {
+    autoIndex: this.config.autoIndex != null ? this.config.autoIndex : this.base.options.autoIndex,
+    autoCreate: this.config.autoCreate != null ? this.config.autoCreate : this.base.options.autoCreate,
+    autoSearchIndex: this.config.autoSearchIndex != null ? this.config.autoSearchIndex : this.base.options.autoSearchIndex
+  };
+  options = Object.assign({}, defaultOptions, options ? clone(options) : {});
+  options.$wasForceClosed = this.$wasForceClosed;
+  const Collection = this.base && this.base.__driver && this.base.__driver.Collection || driver.get().Collection;
+  if (!(name in this.collections)) {
+    this.collections[name] = new Collection(name, this, options);
+  }
+  return this.collections[name];
+};
+
+/**
+ * Declares a plugin executed on all schemas you pass to `conn.model()`
+ *
+ * Equivalent to calling `.plugin(fn)` on each schema you create.
+ *
+ * #### Example:
+ *
+ *     const db = mongoose.createConnection('mongodb://127.0.0.1:27017/mydb');
+ *     db.plugin(() => console.log('Applied'));
+ *     db.plugins.length; // 1
+ *
+ *     db.model('Test', new Schema({})); // Prints "Applied"
+ *
+ * @param {Function} fn plugin callback
+ * @param {Object} [opts] optional options
+ * @return {Connection} this
+ * @see plugins https://mongoosejs.com/docs/plugins.html
+ * @api public
+ */
+
+Connection.prototype.plugin = function(fn, opts) {
+  this.plugins.push([fn, opts]);
+  return this;
+};
+
+/**
+ * Defines or retrieves a model.
+ *
+ *     const mongoose = require('mongoose');
+ *     const db = mongoose.createConnection(..);
+ *     db.model('Venue', new Schema(..));
+ *     const Ticket = db.model('Ticket', new Schema(..));
+ *     const Venue = db.model('Venue');
+ *
+ * _When no `collection` argument is passed, Mongoose produces a collection name by passing the model `name` to the `utils.toCollectionName` method. This method pluralizes the name. If you don't like this behavior, either pass a collection name or set your schemas collection name option._
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ name: String }, { collection: 'actor' });
+ *
+ *     // or
+ *
+ *     schema.set('collection', 'actor');
+ *
+ *     // or
+ *
+ *     const collectionName = 'actor'
+ *     const M = conn.model('Actor', schema, collectionName)
+ *
+ * @param {String|Function} name the model name or class extending Model
+ * @param {Schema} [schema] a schema. necessary when defining a model
+ * @param {String} [collection] name of mongodb collection (optional) if not given it will be induced from model name
+ * @param {Object} [options]
+ * @param {Boolean} [options.overwriteModels=false] If true, overwrite existing models with the same name to avoid `OverwriteModelError`
+ * @see Mongoose#model https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.model()
+ * @return {Model} The compiled model
+ * @api public
+ */
+
+Connection.prototype.model = function model(name, schema, collection, options) {
+  if (!(this instanceof Connection)) {
+    throw new MongooseError('`connection.model()` should not be run with ' +
+      '`new`. If you are doing `new db.model(foo)(bar)`, use ' +
+      '`db.model(foo)(bar)` instead');
+  }
+
+  let fn;
+  if (typeof name === 'function') {
+    fn = name;
+    name = fn.name;
+  }
+
+  // collection name discovery
+  if (typeof schema === 'string') {
+    collection = schema;
+    schema = false;
+  }
+
+  if (utils.isObject(schema)) {
+    if (!schema.instanceOfSchema) {
+      schema = new Schema(schema);
+    } else if (!(schema instanceof this.base.Schema)) {
+      schema = schema._clone(this.base.Schema);
+    }
+  }
+  if (schema && !schema.instanceOfSchema) {
+    throw new Error('The 2nd parameter to `mongoose.model()` should be a ' +
+      'schema or a POJO');
+  }
+
+  const defaultOptions = { cache: false, overwriteModels: this.base.options.overwriteModels };
+  const opts = Object.assign(defaultOptions, options, { connection: this });
+  if (this.models[name] && !collection && opts.overwriteModels !== true) {
+    // model exists but we are not subclassing with custom collection
+    if (schema && schema.instanceOfSchema && schema !== this.models[name].schema) {
+      throw new MongooseError.OverwriteModelError(name);
+    }
+    return this.models[name];
+  }
+
+  let model;
+
+  if (schema && schema.instanceOfSchema) {
+    applyPlugins(schema, this.plugins, null, '$connectionPluginsApplied');
+
+    // compile a model
+    model = this.base._model(fn || name, schema, collection, opts);
+
+    // only the first model with this name is cached to allow
+    // for one-offs with custom collection names etc.
+    if (!this.models[name]) {
+      this.models[name] = model;
+    }
+
+    // Errors handled internally, so safe to ignore error
+    model.init().catch(function $modelInitNoop() {});
+
+    return model;
+  }
+
+  if (this.models[name] && collection) {
+    // subclassing current model with alternate collection
+    model = this.models[name];
+    schema = model.prototype.schema;
+    const sub = model.__subclass(this, schema, collection);
+    // do not cache the sub model
+    return sub;
+  }
+
+  if (arguments.length === 1) {
+    model = this.models[name];
+    if (!model) {
+      throw new MongooseError.MissingSchemaError(name);
+    }
+    return model;
+  }
+
+  if (!model) {
+    throw new MongooseError.MissingSchemaError(name);
+  }
+
+  if (this === model.prototype.db
+      && (!collection || collection === model.collection.name)) {
+    // model already uses this connection.
+
+    // only the first model with this name is cached to allow
+    // for one-offs with custom collection names etc.
+    if (!this.models[name]) {
+      this.models[name] = model;
+    }
+
+    return model;
+  }
+  this.models[name] = model.__subclass(this, schema, collection);
+  return this.models[name];
+};
+
+/**
+ * Removes the model named `name` from this connection, if it exists. You can
+ * use this function to clean up any models you created in your tests to
+ * prevent OverwriteModelErrors.
+ *
+ * #### Example:
+ *
+ *     conn.model('User', new Schema({ name: String }));
+ *     console.log(conn.model('User')); // Model object
+ *     conn.deleteModel('User');
+ *     console.log(conn.model('User')); // undefined
+ *
+ *     // Usually useful in a Mocha `afterEach()` hook
+ *     afterEach(function() {
+ *       conn.deleteModel(/.+/); // Delete every model
+ *     });
+ *
+ * @api public
+ * @param {String|RegExp} name if string, the name of the model to remove. If regexp, removes all models whose name matches the regexp.
+ * @return {Connection} this
+ */
+
+Connection.prototype.deleteModel = function deleteModel(name) {
+  if (typeof name === 'string') {
+    const model = this.model(name);
+    if (model == null) {
+      return this;
+    }
+    const collectionName = model.collection.name;
+    delete this.models[name];
+    delete this.collections[collectionName];
+
+    this.emit('deleteModel', model);
+  } else if (name instanceof RegExp) {
+    const pattern = name;
+    const names = this.modelNames();
+    for (const name of names) {
+      if (pattern.test(name)) {
+        this.deleteModel(name);
+      }
+    }
+  } else {
+    throw new Error('First parameter to `deleteModel()` must be a string ' +
+      'or regexp, got "' + name + '"');
+  }
+
+  return this;
+};
+
+/**
+ * Watches the entire underlying database for changes. Similar to
+ * [`Model.watch()`](https://mongoosejs.com/docs/api/model.html#Model.watch()).
+ *
+ * This function does **not** trigger any middleware. In particular, it
+ * does **not** trigger aggregate middleware.
+ *
+ * The ChangeStream object is an event emitter that emits the following events:
+ *
+ * - 'change': A change occurred, see below example
+ * - 'error': An unrecoverable error occurred. In particular, change streams currently error out if they lose connection to the replica set primary. Follow [this GitHub issue](https://github.com/Automattic/mongoose/issues/6799) for updates.
+ * - 'end': Emitted if the underlying stream is closed
+ * - 'close': Emitted if the underlying stream is closed
+ *
+ * #### Example:
+ *
+ *     const User = conn.model('User', new Schema({ name: String }));
+ *
+ *     const changeStream = conn.watch().on('change', data => console.log(data));
+ *
+ *     // Triggers a 'change' event on the change stream.
+ *     await User.create({ name: 'test' });
+ *
+ * @api public
+ * @param {Array} [pipeline]
+ * @param {Object} [options] passed without changes to [the MongoDB driver's `Db#watch()` function](https://mongodb.github.io/node-mongodb-native/4.9/classes/Db.html#watch)
+ * @return {ChangeStream} mongoose-specific change stream wrapper, inherits from EventEmitter
+ */
+
+Connection.prototype.watch = function watch(pipeline, options) {
+  const changeStreamThunk = cb => {
+    immediate(() => {
+      if (this.readyState === STATES.connecting) {
+        this.once('open', function() {
+          const driverChangeStream = this.db.watch(pipeline, options);
+          cb(null, driverChangeStream);
+        });
+      } else {
+        const driverChangeStream = this.db.watch(pipeline, options);
+        cb(null, driverChangeStream);
+      }
+    });
+  };
+
+  const changeStream = new ChangeStream(changeStreamThunk, pipeline, options);
+  return changeStream;
+};
+
+/**
+ * Returns a promise that resolves when this connection
+ * successfully connects to MongoDB, or rejects if this connection failed
+ * to connect.
+ *
+ * #### Example:
+ *
+ *     const conn = await mongoose.createConnection('mongodb://127.0.0.1:27017/test').
+ *       asPromise();
+ *     conn.readyState; // 1, means Mongoose is connected
+ *
+ * @api public
+ * @return {Promise}
+ */
+
+Connection.prototype.asPromise = async function asPromise() {
+  try {
+    await this.$initialConnection;
+    return this;
+  } catch (err) {
+    throw _handleConnectionErrors(err);
+  }
+};
+
+/**
+ * Returns an array of model names created on this connection.
+ * @api public
+ * @return {String[]}
+ */
+
+Connection.prototype.modelNames = function modelNames() {
+  return Object.keys(this.models);
+};
+
+/**
+ * Returns if the connection requires authentication after it is opened. Generally if a
+ * username and password are both provided than authentication is needed, but in some cases a
+ * password is not required.
+ *
+ * @api private
+ * @return {Boolean} true if the connection should be authenticated after it is opened, otherwise false.
+ */
+Connection.prototype.shouldAuthenticate = function shouldAuthenticate() {
+  return this.user != null &&
+    (this.pass != null || this.authMechanismDoesNotRequirePassword());
+};
+
+/**
+ * Returns a boolean value that specifies if the current authentication mechanism needs a
+ * password to authenticate according to the auth objects passed into the openUri methods.
+ *
+ * @api private
+ * @return {Boolean} true if the authentication mechanism specified in the options object requires
+ *  a password, otherwise false.
+ */
+Connection.prototype.authMechanismDoesNotRequirePassword = function authMechanismDoesNotRequirePassword() {
+  if (this.options && this.options.auth) {
+    return noPasswordAuthMechanisms.indexOf(this.options.auth.authMechanism) >= 0;
+  }
+  return true;
+};
+
+/**
+ * Returns a boolean value that specifies if the provided objects object provides enough
+ * data to authenticate with. Generally this is true if the username and password are both specified
+ * but in some authentication methods, a password is not required for authentication so only a username
+ * is required.
+ *
+ * @param {Object} [options] the options object passed into the openUri methods.
+ * @api private
+ * @return {Boolean} true if the provided options object provides enough data to authenticate with,
+ *   otherwise false.
+ */
+Connection.prototype.optionsProvideAuthenticationData = function optionsProvideAuthenticationData(options) {
+  return (options) &&
+      (options.user) &&
+      ((options.pass) || this.authMechanismDoesNotRequirePassword());
+};
+
+/**
+ * Returns the [MongoDB driver `MongoClient`](https://mongodb.github.io/node-mongodb-native/4.9/classes/MongoClient.html) instance
+ * that this connection uses to talk to MongoDB.
+ *
+ * #### Example:
+ *
+ *     const conn = await mongoose.createConnection('mongodb://127.0.0.1:27017/test').
+ *       asPromise();
+ *
+ *     conn.getClient(); // MongoClient { ... }
+ *
+ * @api public
+ * @return {MongoClient}
+ */
+
+Connection.prototype.getClient = function getClient() {
+  return this.client;
+};
+
+/**
+ * Set the [MongoDB driver `MongoClient`](https://mongodb.github.io/node-mongodb-native/4.9/classes/MongoClient.html) instance
+ * that this connection uses to talk to MongoDB. This is useful if you already have a MongoClient instance, and want to
+ * reuse it.
+ *
+ * #### Example:
+ *
+ *     const client = await mongodb.MongoClient.connect('mongodb://127.0.0.1:27017/test');
+ *
+ *     const conn = mongoose.createConnection().setClient(client);
+ *
+ *     conn.getClient(); // MongoClient { ... }
+ *     conn.readyState; // 1, means 'CONNECTED'
+ *
+ * @api public
+ * @param {MongClient} client The Client to set to be used.
+ * @return {Connection} this
+ */
+
+Connection.prototype.setClient = function setClient() {
+  throw new MongooseError('Connection#setClient not implemented by driver');
+};
+
+/*!
+ * Called internally by `openUri()` to create a MongoClient instance.
+ */
+
+Connection.prototype.createClient = function createClient() {
+  throw new MongooseError('Connection#createClient not implemented by driver');
+};
+
+/**
+ * Syncs all the indexes for the models registered with this connection.
+ *
+ * @param {Object} [options]
+ * @param {Boolean} [options.continueOnError] `false` by default. If set to `true`, mongoose will not throw an error if one model syncing failed, and will return an object where the keys are the names of the models, and the values are the results/errors for each model.
+ * @return {Promise<Object>} Returns a Promise, when the Promise resolves the value is a list of the dropped indexes.
+ */
+Connection.prototype.syncIndexes = async function syncIndexes(options = {}) {
+  const result = {};
+  const errorsMap = { };
+
+  const { continueOnError } = options;
+  delete options.continueOnError;
+
+  for (const model of Object.values(this.models)) {
+    try {
+      result[model.modelName] = await model.syncIndexes(options);
+    } catch (err) {
+      if (!continueOnError) {
+        errorsMap[model.modelName] = err;
+        break;
+      } else {
+        result[model.modelName] = err;
+      }
+    }
+  }
+
+  if (!continueOnError && Object.keys(errorsMap).length) {
+    const message = Object.entries(errorsMap).map(([modelName, err]) => `${modelName}: ${err.message}`).join(', ');
+    const syncIndexesError = new SyncIndexesError(message, errorsMap);
+    throw syncIndexesError;
+  }
+
+  return result;
+};
+
+/**
+ * Switches to a different database using the same [connection pool](https://mongoosejs.com/docs/api/connectionshtml#connection_pools).
+ *
+ * Returns a new connection object, with the new db.
+ *
+ * #### Example:
+ *
+ *     // Connect to `initialdb` first
+ *     const conn = await mongoose.createConnection('mongodb://127.0.0.1:27017/initialdb').asPromise();
+ *
+ *     // Creates an un-cached connection to `mydb`
+ *     const db = conn.useDb('mydb');
+ *     // Creates a cached connection to `mydb2`. All calls to `conn.useDb('mydb2', { useCache: true })` will return the same
+ *     // connection instance as opposed to creating a new connection instance
+ *     const db2 = conn.useDb('mydb2', { useCache: true });
+ *
+ * @method useDb
+ * @memberOf Connection
+ * @param {String} name The database name
+ * @param {Object} [options]
+ * @param {Boolean} [options.useCache=false] If true, cache results so calling `useDb()` multiple times with the same name only creates 1 connection object.
+ * @param {Boolean} [options.noListener=false] If true, the connection object will not make the db listen to events on the original connection. See [issue #9961](https://github.com/Automattic/mongoose/issues/9961).
+ * @return {Connection} New Connection Object
+ * @api public
+ */
+
+/**
+ * Removes the database connection with the given name created with with `useDb()`.
+ *
+ * Throws an error if the database connection was not found.
+ *
+ * #### Example:
+ *
+ *     // Connect to `initialdb` first
+ *     const conn = await mongoose.createConnection('mongodb://127.0.0.1:27017/initialdb').asPromise();
+ *
+ *     // Creates an un-cached connection to `mydb`
+ *     const db = conn.useDb('mydb');
+ *
+ *     // Closes `db`, and removes `db` from `conn.relatedDbs` and `conn.otherDbs`
+ *     await conn.removeDb('mydb');
+ *
+ * @method removeDb
+ * @memberOf Connection
+ * @param {String} name The database name
+ * @return {Connection} this
+ * @api public
+ */
+
+/*!
+ * Module exports.
+ */
+
+Connection.STATES = STATES;
+module.exports = Connection;
diff --git a/backend/node_modules/mongoose/lib/connectionState.js b/backend/node_modules/mongoose/lib/connectionState.js
new file mode 100644
index 0000000..920f45b
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/connectionState.js
@@ -0,0 +1,26 @@
+
+/*!
+ * Connection states
+ */
+
+'use strict';
+
+const STATES = module.exports = exports = Object.create(null);
+
+const disconnected = 'disconnected';
+const connected = 'connected';
+const connecting = 'connecting';
+const disconnecting = 'disconnecting';
+const uninitialized = 'uninitialized';
+
+STATES[0] = disconnected;
+STATES[1] = connected;
+STATES[2] = connecting;
+STATES[3] = disconnecting;
+STATES[99] = uninitialized;
+
+STATES[disconnected] = 0;
+STATES[connected] = 1;
+STATES[connecting] = 2;
+STATES[disconnecting] = 3;
+STATES[uninitialized] = 99;
diff --git a/backend/node_modules/mongoose/lib/constants.js b/backend/node_modules/mongoose/lib/constants.js
new file mode 100644
index 0000000..3a03bd5
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/constants.js
@@ -0,0 +1,73 @@
+'use strict';
+
+/*!
+ * ignore
+ */
+
+const queryOperations = Object.freeze([
+  // Read
+  'countDocuments',
+  'distinct',
+  'estimatedDocumentCount',
+  'find',
+  'findOne',
+  // Update
+  'findOneAndReplace',
+  'findOneAndUpdate',
+  'replaceOne',
+  'updateMany',
+  'updateOne',
+  // Delete
+  'deleteMany',
+  'deleteOne',
+  'findOneAndDelete'
+]);
+
+exports.queryOperations = queryOperations;
+
+/*!
+ * ignore
+ */
+
+const queryMiddlewareFunctions = queryOperations.concat([
+  'validate'
+]);
+
+exports.queryMiddlewareFunctions = queryMiddlewareFunctions;
+
+/*!
+ * ignore
+ */
+
+const aggregateMiddlewareFunctions = [
+  'aggregate'
+];
+
+exports.aggregateMiddlewareFunctions = aggregateMiddlewareFunctions;
+
+/*!
+ * ignore
+ */
+
+const modelMiddlewareFunctions = [
+  'bulkWrite',
+  'createCollection',
+  'insertMany'
+];
+
+exports.modelMiddlewareFunctions = modelMiddlewareFunctions;
+
+/*!
+ * ignore
+ */
+
+const documentMiddlewareFunctions = [
+  'validate',
+  'save',
+  'remove',
+  'updateOne',
+  'deleteOne',
+  'init'
+];
+
+exports.documentMiddlewareFunctions = documentMiddlewareFunctions;
diff --git a/backend/node_modules/mongoose/lib/cursor/aggregationCursor.js b/backend/node_modules/mongoose/lib/cursor/aggregationCursor.js
new file mode 100644
index 0000000..2cff8bb
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/cursor/aggregationCursor.js
@@ -0,0 +1,427 @@
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const MongooseError = require('../error/mongooseError');
+const Readable = require('stream').Readable;
+const eachAsync = require('../helpers/cursor/eachAsync');
+const immediate = require('../helpers/immediate');
+const util = require('util');
+
+/**
+ * An AggregationCursor is a concurrency primitive for processing aggregation
+ * results one document at a time. It is analogous to QueryCursor.
+ *
+ * An AggregationCursor fulfills the Node.js streams3 API,
+ * in addition to several other mechanisms for loading documents from MongoDB
+ * one at a time.
+ *
+ * Creating an AggregationCursor executes the model's pre aggregate hooks,
+ * but **not** the model's post aggregate hooks.
+ *
+ * Unless you're an advanced user, do **not** instantiate this class directly.
+ * Use [`Aggregate#cursor()`](https://mongoosejs.com/docs/api/aggregate.html#Aggregate.prototype.cursor()) instead.
+ *
+ * @param {Aggregate} agg
+ * @inherits Readable https://nodejs.org/api/stream.html#class-streamreadable
+ * @event `cursor`: Emitted when the cursor is created
+ * @event `error`: Emitted when an error occurred
+ * @event `data`: Emitted when the stream is flowing and the next doc is ready
+ * @event `end`: Emitted when the stream is exhausted
+ * @api public
+ */
+
+function AggregationCursor(agg) {
+  // set autoDestroy=true because on node 12 it's by default false
+  // gh-10902 need autoDestroy to destroy correctly and emit 'close' event
+  Readable.call(this, { autoDestroy: true, objectMode: true });
+
+  this.cursor = null;
+  this.agg = agg;
+  this._transforms = [];
+  const model = agg._model;
+  delete agg.options.cursor.useMongooseAggCursor;
+  this._mongooseOptions = {};
+
+  _init(model, this, agg);
+}
+
+util.inherits(AggregationCursor, Readable);
+
+/*!
+ * ignore
+ */
+
+function _init(model, c, agg) {
+  if (!model.collection.buffer) {
+    model.hooks.execPre('aggregate', agg, function() {
+      if (typeof agg.options?.cursor?.transform === 'function') {
+        c._transforms.push(agg.options.cursor.transform);
+      }
+
+      c.cursor = model.collection.aggregate(agg._pipeline, agg.options || {});
+      c.emit('cursor', c.cursor);
+    });
+  } else {
+    model.collection.emitter.once('queue', function() {
+      model.hooks.execPre('aggregate', agg, function() {
+        if (typeof agg.options?.cursor?.transform === 'function') {
+          c._transforms.push(agg.options.cursor.transform);
+        }
+
+        c.cursor = model.collection.aggregate(agg._pipeline, agg.options || {});
+        c.emit('cursor', c.cursor);
+      });
+    });
+  }
+}
+
+/**
+ * Necessary to satisfy the Readable API
+ * @method _read
+ * @memberOf AggregationCursor
+ * @instance
+ * @api private
+ */
+
+AggregationCursor.prototype._read = function() {
+  const _this = this;
+  _next(this, function(error, doc) {
+    if (error) {
+      return _this.emit('error', error);
+    }
+    if (!doc) {
+      _this.push(null);
+      _this.cursor.close(function(error) {
+        if (error) {
+          return _this.emit('error', error);
+        }
+      });
+      return;
+    }
+    _this.push(doc);
+  });
+};
+
+if (Symbol.asyncIterator != null) {
+  const msg = 'Mongoose does not support using async iterators with an ' +
+    'existing aggregation cursor. See https://bit.ly/mongoose-async-iterate-aggregation';
+
+  AggregationCursor.prototype[Symbol.asyncIterator] = function() {
+    throw new MongooseError(msg);
+  };
+}
+
+/**
+ * Registers a transform function which subsequently maps documents retrieved
+ * via the streams interface or `.next()`
+ *
+ * #### Example:
+ *
+ *     // Map documents returned by `data` events
+ *     Thing.
+ *       find({ name: /^hello/ }).
+ *       cursor().
+ *       map(function (doc) {
+ *        doc.foo = "bar";
+ *        return doc;
+ *       })
+ *       on('data', function(doc) { console.log(doc.foo); });
+ *
+ *     // Or map documents returned by `.next()`
+ *     const cursor = Thing.find({ name: /^hello/ }).
+ *       cursor().
+ *       map(function (doc) {
+ *         doc.foo = "bar";
+ *         return doc;
+ *       });
+ *     cursor.next(function(error, doc) {
+ *       console.log(doc.foo);
+ *     });
+ *
+ * @param {Function} fn
+ * @return {AggregationCursor}
+ * @memberOf AggregationCursor
+ * @api public
+ * @method map
+ */
+
+Object.defineProperty(AggregationCursor.prototype, 'map', {
+  value: function(fn) {
+    this._transforms.push(fn);
+    return this;
+  },
+  enumerable: true,
+  configurable: true,
+  writable: true
+});
+
+/**
+ * Marks this cursor as errored
+ * @method _markError
+ * @instance
+ * @memberOf AggregationCursor
+ * @api private
+ */
+
+AggregationCursor.prototype._markError = function(error) {
+  this._error = error;
+  return this;
+};
+
+/**
+ * Marks this cursor as closed. Will stop streaming and subsequent calls to
+ * `next()` will error.
+ *
+ * @return {Promise}
+ * @api public
+ * @method close
+ * @emits "close"
+ * @see AggregationCursor.close https://mongodb.github.io/node-mongodb-native/4.9/classes/AggregationCursor.html#close
+ */
+
+AggregationCursor.prototype.close = async function close() {
+  if (typeof arguments[0] === 'function') {
+    throw new MongooseError('AggregationCursor.prototype.close() no longer accepts a callback');
+  }
+  try {
+    await this.cursor.close();
+  } catch (error) {
+    this.listeners('error').length > 0 && this.emit('error', error);
+    throw error;
+  }
+  this.emit('close');
+};
+
+/**
+ * Marks this cursor as destroyed. Will stop streaming and subsequent calls to
+ * `next()` will error.
+ *
+ * @return {this}
+ * @api private
+ * @method _destroy
+ */
+
+AggregationCursor.prototype._destroy = function _destroy(_err, callback) {
+  let waitForCursor = null;
+  if (!this.cursor) {
+    waitForCursor = new Promise((resolve) => {
+      this.once('cursor', resolve);
+    });
+  } else {
+    waitForCursor = Promise.resolve();
+  }
+
+  waitForCursor
+    .then(() => this.cursor.close())
+    .then(() => {
+      this._closed = true;
+      callback();
+    })
+    .catch(error => {
+      callback(error);
+    });
+  return this;
+};
+
+/**
+ * Get the next document from this cursor. Will return `null` when there are
+ * no documents left.
+ *
+ * @return {Promise}
+ * @api public
+ * @method next
+ */
+
+AggregationCursor.prototype.next = async function next() {
+  if (typeof arguments[0] === 'function') {
+    throw new MongooseError('AggregationCursor.prototype.next() no longer accepts a callback');
+  }
+  return new Promise((resolve, reject) => {
+    _next(this, (err, res) => {
+      if (err != null) {
+        return reject(err);
+      }
+      resolve(res);
+    });
+  });
+};
+
+/**
+ * Execute `fn` for every document in the cursor. If `fn` returns a promise,
+ * will wait for the promise to resolve before iterating on to the next one.
+ * Returns a promise that resolves when done.
+ *
+ * @param {Function} fn
+ * @param {Object} [options]
+ * @param {Number} [options.parallel] the number of promises to execute in parallel. Defaults to 1.
+ * @param {Number} [options.batchSize=null] if set, Mongoose will call `fn` with an array of at most `batchSize` documents, instead of a single document
+ * @param {Boolean} [options.continueOnError=false] if true, `eachAsync()` iterates through all docs even if `fn` throws an error. If false, `eachAsync()` throws an error immediately if the given function `fn()` throws an error.
+ * @return {Promise}
+ * @api public
+ * @method eachAsync
+ */
+
+AggregationCursor.prototype.eachAsync = function(fn, opts) {
+  if (typeof arguments[2] === 'function') {
+    throw new MongooseError('AggregationCursor.prototype.eachAsync() no longer accepts a callback');
+  }
+  const _this = this;
+  if (typeof opts === 'function') {
+    opts = {};
+  }
+  opts = opts || {};
+
+  return eachAsync(function(cb) { return _next(_this, cb); }, fn, opts);
+};
+
+/**
+ * Returns an asyncIterator for use with [`for/await/of` loops](https://thecodebarbarian.com/getting-started-with-async-iterators-in-node-js)
+ * You do not need to call this function explicitly, the JavaScript runtime
+ * will call it for you.
+ *
+ * #### Example:
+ *
+ *     // Async iterator without explicitly calling `cursor()`. Mongoose still
+ *     // creates an AggregationCursor instance internally.
+ *     const agg = Model.aggregate([{ $match: { age: { $gte: 25 } } }]);
+ *     for await (const doc of agg) {
+ *       console.log(doc.name);
+ *     }
+ *
+ *     // You can also use an AggregationCursor instance for async iteration
+ *     const cursor = Model.aggregate([{ $match: { age: { $gte: 25 } } }]).cursor();
+ *     for await (const doc of cursor) {
+ *       console.log(doc.name);
+ *     }
+ *
+ * Node.js 10.x supports async iterators natively without any flags. You can
+ * enable async iterators in Node.js 8.x using the [`--harmony_async_iteration` flag](https://github.com/tc39/proposal-async-iteration/issues/117#issuecomment-346695187).
+ *
+ * **Note:** This function is not set if `Symbol.asyncIterator` is undefined. If
+ * `Symbol.asyncIterator` is undefined, that means your Node.js version does not
+ * support async iterators.
+ *
+ * @method [Symbol.asyncIterator]
+ * @memberOf AggregationCursor
+ * @instance
+ * @api public
+ */
+
+if (Symbol.asyncIterator != null) {
+  AggregationCursor.prototype[Symbol.asyncIterator] = function() {
+    return this.transformNull()._transformForAsyncIterator();
+  };
+}
+
+/*!
+ * ignore
+ */
+
+AggregationCursor.prototype._transformForAsyncIterator = function() {
+  if (this._transforms.indexOf(_transformForAsyncIterator) === -1) {
+    this.map(_transformForAsyncIterator);
+  }
+  return this;
+};
+
+/*!
+ * ignore
+ */
+
+AggregationCursor.prototype.transformNull = function(val) {
+  if (arguments.length === 0) {
+    val = true;
+  }
+  this._mongooseOptions.transformNull = val;
+  return this;
+};
+
+/*!
+ * ignore
+ */
+
+function _transformForAsyncIterator(doc) {
+  return doc == null ? { done: true } : { value: doc, done: false };
+}
+
+/**
+ * Adds a [cursor flag](https://mongodb.github.io/node-mongodb-native/4.9/classes/AggregationCursor.html#addCursorFlag).
+ * Useful for setting the `noCursorTimeout` and `tailable` flags.
+ *
+ * @param {String} flag
+ * @param {Boolean} value
+ * @return {AggregationCursor} this
+ * @api public
+ * @method addCursorFlag
+ */
+
+AggregationCursor.prototype.addCursorFlag = function(flag, value) {
+  const _this = this;
+  _waitForCursor(this, function() {
+    _this.cursor.addCursorFlag(flag, value);
+  });
+  return this;
+};
+
+/*!
+ * ignore
+ */
+
+function _waitForCursor(ctx, cb) {
+  if (ctx.cursor) {
+    return cb();
+  }
+  ctx.once('cursor', function() {
+    cb();
+  });
+}
+
+/**
+ * Get the next doc from the underlying cursor and mongooseify it
+ * (populate, etc.)
+ * @param {Any} ctx
+ * @param {Function} cb
+ * @api private
+ */
+
+function _next(ctx, cb) {
+  let callback = cb;
+  if (ctx._transforms.length) {
+    callback = function(err, doc) {
+      if (err || (doc === null && !ctx._mongooseOptions.transformNull)) {
+        return cb(err, doc);
+      }
+      cb(err, ctx._transforms.reduce(function(doc, fn) {
+        return fn(doc);
+      }, doc));
+    };
+  }
+
+  if (ctx._error) {
+    return immediate(function() {
+      callback(ctx._error);
+    });
+  }
+
+  if (ctx.cursor) {
+    return ctx.cursor.next().then(
+      doc => {
+        if (!doc) {
+          return callback(null, null);
+        }
+
+        callback(null, doc);
+      },
+      err => callback(err)
+    );
+  } else {
+    ctx.once('cursor', function() {
+      _next(ctx, cb);
+    });
+  }
+}
+
+module.exports = AggregationCursor;
diff --git a/backend/node_modules/mongoose/lib/cursor/changeStream.js b/backend/node_modules/mongoose/lib/cursor/changeStream.js
new file mode 100644
index 0000000..b41e237
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/cursor/changeStream.js
@@ -0,0 +1,198 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const EventEmitter = require('events').EventEmitter;
+const MongooseError = require('../error/mongooseError');
+
+/*!
+ * ignore
+ */
+
+const driverChangeStreamEvents = ['close', 'change', 'end', 'error', 'resumeTokenChanged'];
+
+/*!
+ * ignore
+ */
+
+class ChangeStream extends EventEmitter {
+  constructor(changeStreamThunk, pipeline, options) {
+    super();
+
+    this.driverChangeStream = null;
+    this.closed = false;
+    this.bindedEvents = false;
+    this.pipeline = pipeline;
+    this.options = options;
+    this.errored = false;
+
+    if (options && options.hydrate && !options.model) {
+      throw new Error(
+        'Cannot create change stream with `hydrate: true` ' +
+        'unless calling `Model.watch()`'
+      );
+    }
+
+    let syncError = null;
+    this.$driverChangeStreamPromise = new Promise((resolve, reject) => {
+      // This wrapper is necessary because of buffering.
+      try {
+        changeStreamThunk((err, driverChangeStream) => {
+          if (err != null) {
+            this.errored = true;
+            this.emit('error', err);
+            return reject(err);
+          }
+
+          this.driverChangeStream = driverChangeStream;
+          this.emit('ready');
+          resolve();
+        });
+      } catch (err) {
+        syncError = err;
+        this.errored = true;
+        this.emit('error', err);
+        reject(err);
+      }
+    });
+
+    // Because a ChangeStream is an event emitter, there's no way to register an 'error' handler
+    // that catches errors which occur in the constructor, unless we force sync errors into async
+    // errors with setImmediate(). For cleaner stack trace, we just immediately throw any synchronous
+    // errors that occurred with changeStreamThunk().
+    if (syncError != null) {
+      throw syncError;
+    }
+  }
+
+  _bindEvents() {
+    if (this.bindedEvents) {
+      return;
+    }
+
+    this.bindedEvents = true;
+
+    if (this.driverChangeStream == null) {
+      this.$driverChangeStreamPromise.then(
+        () => {
+          this.driverChangeStream.on('close', () => {
+            this.closed = true;
+          });
+
+          driverChangeStreamEvents.forEach(ev => {
+            this.driverChangeStream.on(ev, data => {
+              if (data != null && data.fullDocument != null && this.options && this.options.hydrate) {
+                data.fullDocument = this.options.model.hydrate(data.fullDocument);
+              }
+              this.emit(ev, data);
+            });
+          });
+        },
+        () => {} // No need to register events if opening change stream failed
+      );
+
+      return;
+    }
+
+    this.driverChangeStream.on('close', () => {
+      this.closed = true;
+    });
+
+    driverChangeStreamEvents.forEach(ev => {
+      this.driverChangeStream.on(ev, data => {
+        if (data != null && data.fullDocument != null && this.options && this.options.hydrate) {
+          data.fullDocument = this.options.model.hydrate(data.fullDocument);
+        }
+        this.emit(ev, data);
+      });
+    });
+  }
+
+  hasNext(cb) {
+    if (this.errored) {
+      throw new MongooseError('Cannot call hasNext() on errored ChangeStream');
+    }
+    return this.driverChangeStream.hasNext(cb);
+  }
+
+  next(cb) {
+    if (this.errored) {
+      throw new MongooseError('Cannot call next() on errored ChangeStream');
+    }
+    if (this.options && this.options.hydrate) {
+      if (cb != null) {
+        const originalCb = cb;
+        cb = (err, data) => {
+          if (err != null) {
+            return originalCb(err);
+          }
+          if (data.fullDocument != null) {
+            data.fullDocument = this.options.model.hydrate(data.fullDocument);
+          }
+          return originalCb(null, data);
+        };
+      }
+
+      let maybePromise = this.driverChangeStream.next(cb);
+      if (maybePromise && typeof maybePromise.then === 'function') {
+        maybePromise = maybePromise.then(data => {
+          if (data.fullDocument != null) {
+            data.fullDocument = this.options.model.hydrate(data.fullDocument);
+          }
+          return data;
+        });
+      }
+      return maybePromise;
+    }
+
+    return this.driverChangeStream.next(cb);
+  }
+
+  addListener(event, handler) {
+    if (this.errored) {
+      throw new MongooseError('Cannot call addListener() on errored ChangeStream');
+    }
+    this._bindEvents();
+    return super.addListener(event, handler);
+  }
+
+  on(event, handler) {
+    if (this.errored) {
+      throw new MongooseError('Cannot call on() on errored ChangeStream');
+    }
+    this._bindEvents();
+    return super.on(event, handler);
+  }
+
+  once(event, handler) {
+    if (this.errored) {
+      throw new MongooseError('Cannot call once() on errored ChangeStream');
+    }
+    this._bindEvents();
+    return super.once(event, handler);
+  }
+
+  _queue(cb) {
+    this.once('ready', () => cb());
+  }
+
+  close() {
+    this.closed = true;
+    if (this.driverChangeStream) {
+      return this.driverChangeStream.close();
+    } else {
+      return this.$driverChangeStreamPromise.then(
+        () => this.driverChangeStream.close(),
+        () => {} // No need to close if opening the change stream failed
+      );
+    }
+  }
+}
+
+/*!
+ * ignore
+ */
+
+module.exports = ChangeStream;
diff --git a/backend/node_modules/mongoose/lib/cursor/queryCursor.js b/backend/node_modules/mongoose/lib/cursor/queryCursor.js
new file mode 100644
index 0000000..f25a06f
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/cursor/queryCursor.js
@@ -0,0 +1,632 @@
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const MongooseError = require('../error/mongooseError');
+const Readable = require('stream').Readable;
+const eachAsync = require('../helpers/cursor/eachAsync');
+const helpers = require('../queryHelpers');
+const kareem = require('kareem');
+const immediate = require('../helpers/immediate');
+const { once } = require('events');
+const util = require('util');
+
+/**
+ * A QueryCursor is a concurrency primitive for processing query results
+ * one document at a time. A QueryCursor fulfills the Node.js streams3 API,
+ * in addition to several other mechanisms for loading documents from MongoDB
+ * one at a time.
+ *
+ * QueryCursors execute the model's pre `find` hooks before loading any documents
+ * from MongoDB, and the model's post `find` hooks after loading each document.
+ *
+ * Unless you're an advanced user, do **not** instantiate this class directly.
+ * Use [`Query#cursor()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.cursor()) instead.
+ *
+ * @param {Query} query
+ * @param {Object} options query options passed to `.find()`
+ * @inherits Readable https://nodejs.org/api/stream.html#class-streamreadable
+ * @event `cursor`: Emitted when the cursor is created
+ * @event `error`: Emitted when an error occurred
+ * @event `data`: Emitted when the stream is flowing and the next doc is ready
+ * @event `end`: Emitted when the stream is exhausted
+ * @api public
+ */
+
+function QueryCursor(query) {
+  // set autoDestroy=true because on node 12 it's by default false
+  // gh-10902 need autoDestroy to destroy correctly and emit 'close' event
+  Readable.call(this, { autoDestroy: true, objectMode: true });
+
+  this.cursor = null;
+  this.skipped = false;
+  this.query = query;
+  this._closed = false;
+  const model = query.model;
+  this._mongooseOptions = {};
+  this._transforms = [];
+  this.model = model;
+  this.options = {};
+  model.hooks.execPre('find', query, (err) => {
+    if (err != null) {
+      if (err instanceof kareem.skipWrappedFunction) {
+        const resultValue = err.args[0];
+        if (resultValue != null && (!Array.isArray(resultValue) || resultValue.length)) {
+          const err = new MongooseError(
+            'Cannot `skipMiddlewareFunction()` with a value when using ' +
+            '`.find().cursor()`, value must be nullish or empty array, got "' +
+            util.inspect(resultValue) +
+            '".'
+          );
+          this._markError(err);
+          this.listeners('error').length > 0 && this.emit('error', err);
+          return;
+        }
+        this.skipped = true;
+        this.emit('cursor', null);
+        return;
+      }
+      this._markError(err);
+      this.listeners('error').length > 0 && this.emit('error', err);
+      return;
+    }
+    Object.assign(this.options, query._optionsForExec());
+    this._transforms = this._transforms.concat(query._transforms.slice());
+    if (this.options.transform) {
+      this._transforms.push(this.options.transform);
+    }
+    // Re: gh-8039, you need to set the `cursor.batchSize` option, top-level
+    // `batchSize` option doesn't work.
+    if (this.options.batchSize) {
+      // Max out the number of documents we'll populate in parallel at 5000.
+      this.options._populateBatchSize = Math.min(this.options.batchSize, 5000);
+    }
+
+    if (model.collection._shouldBufferCommands() && model.collection.buffer) {
+      model.collection.queue.push([
+        () => _getRawCursor(query, this)
+      ]);
+    } else {
+      _getRawCursor(query, this);
+    }
+  });
+}
+
+util.inherits(QueryCursor, Readable);
+
+/*!
+ * ignore
+ */
+
+function _getRawCursor(query, queryCursor) {
+  try {
+    const cursor = query.model.collection.find(query._conditions, queryCursor.options);
+    queryCursor.cursor = cursor;
+    queryCursor.emit('cursor', cursor);
+  } catch (err) {
+    queryCursor._markError(err);
+    queryCursor.listeners('error').length > 0 && queryCursor.emit('error', queryCursor._error);
+  }
+}
+
+/**
+ * Necessary to satisfy the Readable API
+ * @method _read
+ * @memberOf QueryCursor
+ * @instance
+ * @api private
+ */
+
+QueryCursor.prototype._read = function() {
+  _next(this, (error, doc) => {
+    if (error) {
+      return this.emit('error', error);
+    }
+    if (!doc) {
+      this.push(null);
+      this.cursor.close(function(error) {
+        if (error) {
+          return this.emit('error', error);
+        }
+      });
+      return;
+    }
+    this.push(doc);
+  });
+};
+
+/**
+ * Returns the underlying cursor from the MongoDB Node driver that this cursor uses.
+ *
+ * @method getDriverCursor
+ * @memberOf QueryCursor
+ * @returns {Cursor} MongoDB Node driver cursor instance
+ * @instance
+ * @api public
+ */
+
+QueryCursor.prototype.getDriverCursor = async function getDriverCursor() {
+  if (this.cursor) {
+    return this.cursor;
+  }
+
+  await once(this, 'cursor');
+  return this.cursor;
+};
+
+/**
+ * Registers a transform function which subsequently maps documents retrieved
+ * via the streams interface or `.next()`
+ *
+ * #### Example:
+ *
+ *     // Map documents returned by `data` events
+ *     Thing.
+ *       find({ name: /^hello/ }).
+ *       cursor().
+ *       map(function (doc) {
+ *        doc.foo = "bar";
+ *        return doc;
+ *       })
+ *       on('data', function(doc) { console.log(doc.foo); });
+ *
+ *     // Or map documents returned by `.next()`
+ *     const cursor = Thing.find({ name: /^hello/ }).
+ *       cursor().
+ *       map(function (doc) {
+ *         doc.foo = "bar";
+ *         return doc;
+ *       });
+ *     cursor.next(function(error, doc) {
+ *       console.log(doc.foo);
+ *     });
+ *
+ * @param {Function} fn
+ * @return {QueryCursor}
+ * @memberOf QueryCursor
+ * @api public
+ * @method map
+ */
+
+Object.defineProperty(QueryCursor.prototype, 'map', {
+  value: function(fn) {
+    this._transforms.push(fn);
+    return this;
+  },
+  enumerable: true,
+  configurable: true,
+  writable: true
+});
+
+/**
+ * Marks this cursor as errored
+ * @method _markError
+ * @memberOf QueryCursor
+ * @instance
+ * @api private
+ */
+
+QueryCursor.prototype._markError = function(error) {
+  this._error = error;
+  return this;
+};
+
+/**
+ * Marks this cursor as closed. Will stop streaming and subsequent calls to
+ * `next()` will error.
+ *
+ * @return {Promise}
+ * @api public
+ * @method close
+ * @emits close
+ * @see AggregationCursor.close https://mongodb.github.io/node-mongodb-native/4.9/classes/AggregationCursor.html#close
+ */
+
+QueryCursor.prototype.close = async function close() {
+  if (typeof arguments[0] === 'function') {
+    throw new MongooseError('QueryCursor.prototype.close() no longer accepts a callback');
+  }
+  try {
+    await this.cursor.close();
+    this._closed = true;
+    this.emit('close');
+  } catch (error) {
+    this.listeners('error').length > 0 && this.emit('error', error);
+    throw error;
+  }
+};
+
+/**
+ * Marks this cursor as destroyed. Will stop streaming and subsequent calls to
+ * `next()` will error.
+ *
+ * @return {this}
+ * @api private
+ * @method _destroy
+ */
+
+QueryCursor.prototype._destroy = function _destroy(_err, callback) {
+  let waitForCursor = null;
+  if (!this.cursor) {
+    waitForCursor = new Promise((resolve) => {
+      this.once('cursor', resolve);
+    });
+  } else {
+    waitForCursor = Promise.resolve();
+  }
+
+  waitForCursor
+    .then(() => {
+      this.cursor.close();
+    })
+    .then(() => {
+      this._closed = true;
+      callback();
+    })
+    .catch(error => {
+      callback(error);
+    });
+  return this;
+};
+
+/**
+ * Rewind this cursor to its uninitialized state. Any options that are present on the cursor will
+ * remain in effect. Iterating this cursor will cause new queries to be sent to the server, even
+ * if the resultant data has already been retrieved by this cursor.
+ *
+ * @return {AggregationCursor} this
+ * @api public
+ * @method rewind
+ */
+
+QueryCursor.prototype.rewind = function() {
+  _waitForCursor(this, () => {
+    this.cursor.rewind();
+  });
+  return this;
+};
+
+/**
+ * Get the next document from this cursor. Will return `null` when there are
+ * no documents left.
+ *
+ * @return {Promise}
+ * @api public
+ * @method next
+ */
+
+QueryCursor.prototype.next = async function next() {
+  if (typeof arguments[0] === 'function') {
+    throw new MongooseError('QueryCursor.prototype.next() no longer accepts a callback');
+  }
+  if (this._closed) {
+    throw new MongooseError('Cannot call `next()` on a closed cursor');
+  }
+  return new Promise((resolve, reject) => {
+    _next(this, function(error, doc) {
+      if (error) {
+        return reject(error);
+      }
+      resolve(doc);
+    });
+  });
+};
+
+/**
+ * Execute `fn` for every document in the cursor. If `fn` returns a promise,
+ * will wait for the promise to resolve before iterating on to the next one.
+ * Returns a promise that resolves when done.
+ *
+ * #### Example:
+ *
+ *     // Iterate over documents asynchronously
+ *     Thing.
+ *       find({ name: /^hello/ }).
+ *       cursor().
+ *       eachAsync(async function (doc, i) {
+ *         doc.foo = doc.bar + i;
+ *         await doc.save();
+ *       })
+ *
+ * @param {Function} fn
+ * @param {Object} [options]
+ * @param {Number} [options.parallel] the number of promises to execute in parallel. Defaults to 1.
+ * @param {Number} [options.batchSize] if set, will call `fn()` with arrays of documents with length at most `batchSize`
+ * @param {Boolean} [options.continueOnError=false] if true, `eachAsync()` iterates through all docs even if `fn` throws an error. If false, `eachAsync()` throws an error immediately if the given function `fn()` throws an error.
+ * @return {Promise}
+ * @api public
+ * @method eachAsync
+ */
+
+QueryCursor.prototype.eachAsync = function(fn, opts) {
+  if (typeof arguments[2] === 'function') {
+    throw new MongooseError('QueryCursor.prototype.eachAsync() no longer accepts a callback');
+  }
+  if (typeof opts === 'function') {
+    opts = {};
+  }
+  opts = opts || {};
+
+  return eachAsync((cb) => _next(this, cb), fn, opts);
+};
+
+/**
+ * The `options` passed in to the `QueryCursor` constructor.
+ *
+ * @api public
+ * @property options
+ */
+
+QueryCursor.prototype.options;
+
+/**
+ * Adds a [cursor flag](https://mongodb.github.io/node-mongodb-native/4.9/classes/FindCursor.html#addCursorFlag).
+ * Useful for setting the `noCursorTimeout` and `tailable` flags.
+ *
+ * @param {String} flag
+ * @param {Boolean} value
+ * @return {AggregationCursor} this
+ * @api public
+ * @method addCursorFlag
+ */
+
+QueryCursor.prototype.addCursorFlag = function(flag, value) {
+  _waitForCursor(this, () => {
+    this.cursor.addCursorFlag(flag, value);
+  });
+  return this;
+};
+
+/*!
+ * ignore
+ */
+
+QueryCursor.prototype.transformNull = function(val) {
+  if (arguments.length === 0) {
+    val = true;
+  }
+  this._mongooseOptions.transformNull = val;
+  return this;
+};
+
+/*!
+ * ignore
+ */
+
+QueryCursor.prototype._transformForAsyncIterator = function() {
+  if (this._transforms.indexOf(_transformForAsyncIterator) === -1) {
+    this.map(_transformForAsyncIterator);
+  }
+  return this;
+};
+
+/**
+ * Returns an asyncIterator for use with [`for/await/of` loops](https://thecodebarbarian.com/getting-started-with-async-iterators-in-node-js).
+ * You do not need to call this function explicitly, the JavaScript runtime
+ * will call it for you.
+ *
+ * #### Example:
+ *
+ *     // Works without using `cursor()`
+ *     for await (const doc of Model.find([{ $sort: { name: 1 } }])) {
+ *       console.log(doc.name);
+ *     }
+ *
+ *     // Can also use `cursor()`
+ *     for await (const doc of Model.find([{ $sort: { name: 1 } }]).cursor()) {
+ *       console.log(doc.name);
+ *     }
+ *
+ * Node.js 10.x supports async iterators natively without any flags. You can
+ * enable async iterators in Node.js 8.x using the [`--harmony_async_iteration` flag](https://github.com/tc39/proposal-async-iteration/issues/117#issuecomment-346695187).
+ *
+ * **Note:** This function is not if `Symbol.asyncIterator` is undefined. If
+ * `Symbol.asyncIterator` is undefined, that means your Node.js version does not
+ * support async iterators.
+ *
+ * @method [Symbol.asyncIterator]
+ * @memberOf QueryCursor
+ * @instance
+ * @api public
+ */
+
+if (Symbol.asyncIterator != null) {
+  QueryCursor.prototype[Symbol.asyncIterator] = function() {
+    return this.transformNull()._transformForAsyncIterator();
+  };
+}
+
+/*!
+ * ignore
+ */
+
+function _transformForAsyncIterator(doc) {
+  return doc == null ? { done: true } : { value: doc, done: false };
+}
+
+/**
+ * Get the next doc from the underlying cursor and mongooseify it
+ * (populate, etc.)
+ * @param {Any} ctx
+ * @param {Function} cb
+ * @api private
+ */
+
+function _next(ctx, cb) {
+  let callback = cb;
+  if (ctx._transforms.length) {
+    callback = function(err, doc) {
+      if (err || (doc === null && !ctx._mongooseOptions.transformNull)) {
+        return cb(err, doc);
+      }
+      cb(err, ctx._transforms.reduce(function(doc, fn) {
+        return fn.call(ctx, doc);
+      }, doc));
+    };
+  }
+
+  if (ctx._error) {
+    return immediate(function() {
+      callback(ctx._error);
+    });
+  }
+  if (ctx.skipped) {
+    return immediate(() => callback(null, null));
+  }
+
+  if (ctx.cursor) {
+    if (ctx.query._mongooseOptions.populate && !ctx._pop) {
+      ctx._pop = helpers.preparePopulationOptionsMQ(ctx.query,
+        ctx.query._mongooseOptions);
+      ctx._pop.__noPromise = true;
+    }
+    if (ctx.query._mongooseOptions.populate && ctx.options._populateBatchSize > 1) {
+      if (ctx._batchDocs && ctx._batchDocs.length) {
+        // Return a cached populated doc
+        return _nextDoc(ctx, ctx._batchDocs.shift(), ctx._pop, callback);
+      } else if (ctx._batchExhausted) {
+        // Internal cursor reported no more docs. Act the same here
+        return callback(null, null);
+      } else {
+        // Request as many docs as batchSize, to populate them also in batch
+        ctx._batchDocs = [];
+        ctx.cursor.next().then(
+          res => { _onNext.call({ ctx, callback }, null, res); },
+          err => { _onNext.call({ ctx, callback }, err); }
+        );
+        return;
+      }
+    } else {
+      return ctx.cursor.next().then(
+        doc => {
+          if (!doc) {
+            callback(null, null);
+            return;
+          }
+
+          if (!ctx.query._mongooseOptions.populate) {
+            return _nextDoc(ctx, doc, null, callback);
+          }
+
+          ctx.query.model.populate(doc, ctx._pop).then(
+            doc => {
+              _nextDoc(ctx, doc, ctx._pop, callback);
+            },
+            err => {
+              callback(err);
+            }
+          );
+        },
+        error => {
+          callback(error);
+        }
+      );
+    }
+  } else {
+    ctx.once('error', cb);
+
+    ctx.once('cursor', function(cursor) {
+      ctx.removeListener('error', cb);
+      if (cursor == null) {
+        if (ctx.skipped) {
+          return cb(null, null);
+        }
+        return;
+      }
+      _next(ctx, cb);
+    });
+  }
+}
+
+/*!
+ * ignore
+ */
+
+function _onNext(error, doc) {
+  if (error) {
+    return this.callback(error);
+  }
+  if (!doc) {
+    this.ctx._batchExhausted = true;
+    return _populateBatch.call(this);
+  }
+
+  this.ctx._batchDocs.push(doc);
+
+  if (this.ctx._batchDocs.length < this.ctx.options._populateBatchSize) {
+    // If both `batchSize` and `_populateBatchSize` are huge, calling `next()` repeatedly may
+    // cause a stack overflow. So make sure we clear the stack.
+    immediate(() => this.ctx.cursor.next().then(
+      res => { _onNext.call(this, null, res); },
+      err => { _onNext.call(this, err); }
+    ));
+  } else {
+    _populateBatch.call(this);
+  }
+}
+
+/*!
+ * ignore
+ */
+
+function _populateBatch() {
+  if (!this.ctx._batchDocs.length) {
+    return this.callback(null, null);
+  }
+  this.ctx.query.model.populate(this.ctx._batchDocs, this.ctx._pop).then(
+    () => {
+      _nextDoc(this.ctx, this.ctx._batchDocs.shift(), this.ctx._pop, this.callback);
+    },
+    err => {
+      this.callback(err);
+    }
+  );
+}
+
+/*!
+ * ignore
+ */
+
+function _nextDoc(ctx, doc, pop, callback) {
+  if (ctx.query._mongooseOptions.lean) {
+    return ctx.model.hooks.execPost('find', ctx.query, [[doc]], err => {
+      if (err != null) {
+        return callback(err);
+      }
+      callback(null, doc);
+    });
+  }
+
+  const { model, _fields, _userProvidedFields, options } = ctx.query;
+  helpers.createModelAndInit(model, doc, _fields, _userProvidedFields, options, pop, (err, doc) => {
+    if (err != null) {
+      return callback(err);
+    }
+    ctx.model.hooks.execPost('find', ctx.query, [[doc]], err => {
+      if (err != null) {
+        return callback(err);
+      }
+      callback(null, doc);
+    });
+  });
+}
+
+/*!
+ * ignore
+ */
+
+function _waitForCursor(ctx, cb) {
+  if (ctx.cursor) {
+    return cb();
+  }
+  ctx.once('cursor', function(cursor) {
+    if (cursor == null) {
+      return;
+    }
+    cb();
+  });
+}
+
+module.exports = QueryCursor;
diff --git a/backend/node_modules/mongoose/lib/document.js b/backend/node_modules/mongoose/lib/document.js
new file mode 100644
index 0000000..190d74c
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/document.js
@@ -0,0 +1,5367 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const DivergentArrayError = require('./error/divergentArray');
+const EventEmitter = require('events').EventEmitter;
+const InternalCache = require('./internal');
+const MongooseBuffer = require('./types/buffer');
+const MongooseError = require('./error/index');
+const MixedSchema = require('./schema/mixed');
+const ModifiedPathsSnapshot = require('./modifiedPathsSnapshot');
+const ObjectExpectedError = require('./error/objectExpected');
+const ObjectParameterError = require('./error/objectParameter');
+const ParallelValidateError = require('./error/parallelValidate');
+const Schema = require('./schema');
+const StrictModeError = require('./error/strict');
+const ValidationError = require('./error/validation');
+const ValidatorError = require('./error/validator');
+const $__hasIncludedChildren = require('./helpers/projection/hasIncludedChildren');
+const applyDefaults = require('./helpers/document/applyDefaults');
+const cleanModifiedSubpaths = require('./helpers/document/cleanModifiedSubpaths');
+const clone = require('./helpers/clone');
+const compile = require('./helpers/document/compile').compile;
+const defineKey = require('./helpers/document/compile').defineKey;
+const firstKey = require('./helpers/firstKey');
+const flatten = require('./helpers/common').flatten;
+const getEmbeddedDiscriminatorPath = require('./helpers/document/getEmbeddedDiscriminatorPath');
+const getKeysInSchemaOrder = require('./helpers/schema/getKeysInSchemaOrder');
+const getSubdocumentStrictValue = require('./helpers/schema/getSubdocumentStrictValue');
+const handleSpreadDoc = require('./helpers/document/handleSpreadDoc');
+const immediate = require('./helpers/immediate');
+const isBsonType = require('./helpers/isBsonType');
+const isDefiningProjection = require('./helpers/projection/isDefiningProjection');
+const isExclusive = require('./helpers/projection/isExclusive');
+const isPathExcluded = require('./helpers/projection/isPathExcluded');
+const inspect = require('util').inspect;
+const internalToObjectOptions = require('./options').internalToObjectOptions;
+const markArraySubdocsPopulated = require('./helpers/populate/markArraySubdocsPopulated');
+const minimize = require('./helpers/minimize');
+const mpath = require('mpath');
+const parentPaths = require('./helpers/path/parentPaths');
+const queryhelpers = require('./queryHelpers');
+const utils = require('./utils');
+const isPromise = require('./helpers/isPromise');
+
+const deepEqual = utils.deepEqual;
+const isMongooseObject = utils.isMongooseObject;
+
+const arrayAtomicsBackupSymbol = require('./helpers/symbols').arrayAtomicsBackupSymbol;
+const arrayAtomicsSymbol = require('./helpers/symbols').arrayAtomicsSymbol;
+const documentArrayParent = require('./helpers/symbols').documentArrayParent;
+const documentIsModified = require('./helpers/symbols').documentIsModified;
+const documentModifiedPaths = require('./helpers/symbols').documentModifiedPaths;
+const documentSchemaSymbol = require('./helpers/symbols').documentSchemaSymbol;
+const getSymbol = require('./helpers/symbols').getSymbol;
+const modelSymbol = require('./helpers/symbols').modelSymbol;
+const populateModelSymbol = require('./helpers/symbols').populateModelSymbol;
+const scopeSymbol = require('./helpers/symbols').scopeSymbol;
+const schemaMixedSymbol = require('./schema/symbols').schemaMixedSymbol;
+const getDeepestSubdocumentForPath = require('./helpers/document/getDeepestSubdocumentForPath');
+const sessionNewDocuments = require('./helpers/symbols').sessionNewDocuments;
+
+let DocumentArray;
+let MongooseArray;
+let Embedded;
+
+const specialProperties = utils.specialProperties;
+
+const VERSION_WHERE = 1;
+const VERSION_INC = 2;
+const VERSION_ALL = VERSION_WHERE | VERSION_INC;
+
+/**
+ * The core Mongoose document constructor. You should not call this directly,
+ * the Mongoose [Model constructor](./api/model.html#Model) calls this for you.
+ *
+ * @param {Object} obj the values to set
+ * @param {Object} [fields] optional object containing the fields which were selected in the query returning this document and any populated paths data
+ * @param {Object} [options] various configuration options for the document
+ * @param {Boolean} [options.defaults=true] if `false`, skip applying default values to this document.
+ * @inherits NodeJS EventEmitter https://nodejs.org/api/events.html#class-eventemitter
+ * @event `init`: Emitted on a document after it has been retrieved from the db and fully hydrated by Mongoose.
+ * @event `save`: Emitted when the document is successfully saved
+ * @api private
+ */
+
+function Document(obj, fields, skipId, options) {
+  if (typeof skipId === 'object' && skipId != null) {
+    options = skipId;
+    skipId = options.skipId;
+  }
+  options = Object.assign({}, options);
+
+  // Support `browserDocument.js` syntax
+  if (this.$__schema == null) {
+    const _schema = utils.isObject(fields) && !fields.instanceOfSchema ?
+      new Schema(fields) :
+      fields;
+    this.$__setSchema(_schema);
+    fields = skipId;
+    skipId = options;
+    options = arguments[4] || {};
+  }
+
+  this.$__ = new InternalCache();
+
+  // Avoid setting `isNew` to `true`, because it is `true` by default
+  if (options.isNew != null && options.isNew !== true) {
+    this.$isNew = options.isNew;
+  }
+
+  if (options.priorDoc != null) {
+    this.$__.priorDoc = options.priorDoc;
+  }
+
+  if (skipId) {
+    this.$__.skipId = skipId;
+  }
+
+  if (obj != null && typeof obj !== 'object') {
+    throw new ObjectParameterError(obj, 'obj', 'Document');
+  }
+
+  let defaults = true;
+  if (options.defaults !== undefined) {
+    this.$__.defaults = options.defaults;
+    defaults = options.defaults;
+  }
+
+  const schema = this.$__schema;
+
+  if (typeof fields === 'boolean' || fields === 'throw') {
+    if (fields !== true) {
+      this.$__.strictMode = fields;
+    }
+    fields = undefined;
+  } else if (schema.options.strict !== true) {
+    this.$__.strictMode = schema.options.strict;
+  }
+
+  const requiredPaths = schema.requiredPaths(true);
+  for (const path of requiredPaths) {
+    this.$__.activePaths.require(path);
+  }
+
+  let exclude = null;
+
+  // determine if this doc is a result of a query with
+  // excluded fields
+  if (utils.isPOJO(fields) && Object.keys(fields).length > 0) {
+    exclude = isExclusive(fields);
+    this.$__.selected = fields;
+    this.$__.exclude = exclude;
+  }
+
+  const hasIncludedChildren = exclude === false && fields ?
+    $__hasIncludedChildren(fields) :
+    null;
+
+  if (this._doc == null) {
+    this.$__buildDoc(obj, fields, skipId, exclude, hasIncludedChildren, false);
+
+    // By default, defaults get applied **before** setting initial values
+    // Re: gh-6155
+    if (defaults) {
+      applyDefaults(this, fields, exclude, hasIncludedChildren, true, null, {
+        skipParentChangeTracking: true
+      });
+    }
+  }
+  if (obj) {
+    // Skip set hooks
+    if (this.$__original_set) {
+      this.$__original_set(obj, undefined, true, options);
+    } else {
+      this.$set(obj, undefined, true, options);
+    }
+
+    if (obj instanceof Document) {
+      this.$isNew = obj.$isNew;
+    }
+  }
+
+  // Function defaults get applied **after** setting initial values so they
+  // see the full doc rather than an empty one, unless they opt out.
+  // Re: gh-3781, gh-6155
+  if (options.willInit && defaults) {
+    if (options.skipDefaults) {
+      this.$__.skipDefaults = options.skipDefaults;
+    }
+  } else if (defaults) {
+    applyDefaults(this, fields, exclude, hasIncludedChildren, false, options.skipDefaults);
+  }
+
+  if (!this.$__.strictMode && obj) {
+    const _this = this;
+    const keys = Object.keys(this._doc);
+
+    keys.forEach(function(key) {
+      // Avoid methods, virtuals, existing fields, and `$` keys. The latter is to avoid overwriting
+      // Mongoose internals.
+      if (!(key in schema.tree) && !(key in schema.methods) && !(key in schema.virtuals) && !key.startsWith('$')) {
+        defineKey({ prop: key, subprops: null, prototype: _this });
+      }
+    });
+  }
+
+  applyQueue(this);
+}
+
+Document.prototype.$isMongooseDocumentPrototype = true;
+
+/**
+ * Boolean flag specifying if the document is new. If you create a document
+ * using `new`, this document will be considered "new". `$isNew` is how
+ * Mongoose determines whether `save()` should use `insertOne()` to create
+ * a new document or `updateOne()` to update an existing document.
+ *
+ * #### Example:
+ *
+ *     const user = new User({ name: 'John Smith' });
+ *     user.$isNew; // true
+ *
+ *     await user.save(); // Sends an `insertOne` to MongoDB
+ *
+ * On the other hand, if you load an existing document from the database
+ * using `findOne()` or another [query operation](https://mongoosejs.com/docs/queries.html),
+ * `$isNew` will be false.
+ *
+ * #### Example:
+ *
+ *     const user = await User.findOne({ name: 'John Smith' });
+ *     user.$isNew; // false
+ *
+ * Mongoose sets `$isNew` to `false` immediately after `save()` succeeds.
+ * That means Mongoose sets `$isNew` to false **before** `post('save')` hooks run.
+ * In `post('save')` hooks, `$isNew` will be `false` if `save()` succeeded.
+ *
+ * #### Example:
+ *
+ *     userSchema.post('save', function() {
+ *       this.$isNew; // false
+ *     });
+ *     await User.create({ name: 'John Smith' });
+ *
+ * For subdocuments, `$isNew` is true if either the parent has `$isNew` set,
+ * or if you create a new subdocument.
+ *
+ * #### Example:
+ *
+ *     // Assume `Group` has a document array `users`
+ *     const group = await Group.findOne();
+ *     group.users[0].$isNew; // false
+ *
+ *     group.users.push({ name: 'John Smith' });
+ *     group.users[1].$isNew; // true
+ *
+ * @api public
+ * @property $isNew
+ * @memberOf Document
+ * @instance
+ */
+
+Object.defineProperty(Document.prototype, 'isNew', {
+  get: function() {
+    return this.$isNew;
+  },
+  set: function(value) {
+    this.$isNew = value;
+  }
+});
+
+/**
+ * Hash containing current validation errors.
+ *
+ * @api public
+ * @property errors
+ * @memberOf Document
+ * @instance
+ */
+
+Object.defineProperty(Document.prototype, 'errors', {
+  get: function() {
+    return this.$errors;
+  },
+  set: function(value) {
+    this.$errors = value;
+  }
+});
+
+/*!
+ * ignore
+ */
+
+Document.prototype.$isNew = true;
+
+/*!
+ * Document exposes the NodeJS event emitter API, so you can use
+ * `on`, `once`, etc.
+ */
+utils.each(
+  ['on', 'once', 'emit', 'listeners', 'removeListener', 'setMaxListeners',
+    'removeAllListeners', 'addListener'],
+  function(emitterFn) {
+    Document.prototype[emitterFn] = function() {
+      // Delay creating emitter until necessary because emitters take up a lot of memory,
+      // especially for subdocuments.
+      if (!this.$__.emitter) {
+        if (emitterFn === 'emit') {
+          return;
+        }
+        this.$__.emitter = new EventEmitter();
+        this.$__.emitter.setMaxListeners(0);
+      }
+      return this.$__.emitter[emitterFn].apply(this.$__.emitter, arguments);
+    };
+    Document.prototype[`$${emitterFn}`] = Document.prototype[emitterFn];
+  });
+
+Document.prototype.constructor = Document;
+
+for (const i in EventEmitter.prototype) {
+  Document[i] = EventEmitter.prototype[i];
+}
+
+/**
+ * The document's internal schema.
+ *
+ * @api private
+ * @property schema
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.$__schema;
+
+/**
+ * The document's schema.
+ *
+ * @api public
+ * @property schema
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.schema;
+
+/**
+ * Empty object that you can use for storing properties on the document. This
+ * is handy for passing data to middleware without conflicting with Mongoose
+ * internals.
+ *
+ * #### Example:
+ *
+ *     schema.pre('save', function() {
+ *       // Mongoose will set `isNew` to `false` if `save()` succeeds
+ *       this.$locals.wasNew = this.isNew;
+ *     });
+ *
+ *     schema.post('save', function() {
+ *       // Prints true if `isNew` was set before `save()`
+ *       console.log(this.$locals.wasNew);
+ *     });
+ *
+ * @api public
+ * @property $locals
+ * @memberOf Document
+ * @instance
+ */
+
+Object.defineProperty(Document.prototype, '$locals', {
+  configurable: false,
+  enumerable: false,
+  get: function() {
+    if (this.$__.locals == null) {
+      this.$__.locals = {};
+    }
+    return this.$__.locals;
+  },
+  set: function(v) {
+    this.$__.locals = v;
+  }
+});
+
+/**
+ * Legacy alias for `$isNew`.
+ *
+ * @api public
+ * @property isNew
+ * @memberOf Document
+ * @see $isNew https://mongoosejs.com/docs/api/document.html#Document.prototype.$isNew
+ * @instance
+ */
+
+Document.prototype.isNew;
+
+/**
+ * Set this property to add additional query filters when Mongoose saves this document and `isNew` is false.
+ *
+ * #### Example:
+ *
+ *     // Make sure `save()` never updates a soft deleted document.
+ *     schema.pre('save', function() {
+ *       this.$where = { isDeleted: false };
+ *     });
+ *
+ * @api public
+ * @property $where
+ * @memberOf Document
+ * @instance
+ */
+
+Object.defineProperty(Document.prototype, '$where', {
+  configurable: false,
+  enumerable: false,
+  writable: true
+});
+
+/**
+ * The string version of this documents _id.
+ *
+ * #### Note:
+ *
+ * This getter exists on all documents by default. The getter can be disabled by setting the `id` [option](https://mongoosejs.com/docs/guide.html#id) of its `Schema` to false at construction time.
+ *
+ *     new Schema({ name: String }, { id: false });
+ *
+ * @api public
+ * @see Schema options https://mongoosejs.com/docs/guide.html#options
+ * @property id
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.id;
+
+/**
+ * Hash containing current validation $errors.
+ *
+ * @api public
+ * @property $errors
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.$errors;
+
+/**
+ * A string containing the current operation that Mongoose is executing
+ * on this document. May be `null`, `'save'`, `'validate'`, or `'remove'`.
+ *
+ * #### Example:
+ *
+ *     const doc = new Model({ name: 'test' });
+ *     doc.$op; // null
+ *
+ *     const promise = doc.save();
+ *     doc.$op; // 'save'
+ *
+ *     await promise;
+ *     doc.$op; // null
+ *
+ * @api public
+ * @property $op
+ * @memberOf Document
+ * @instance
+ */
+
+Object.defineProperty(Document.prototype, '$op', {
+  get: function() {
+    return this.$__.op || null;
+  },
+  set: function(value) {
+    this.$__.op = value;
+  }
+});
+
+/*!
+ * ignore
+ */
+
+function $applyDefaultsToNested(val, path, doc) {
+  if (val == null) {
+    return;
+  }
+
+  const paths = Object.keys(doc.$__schema.paths);
+  const plen = paths.length;
+
+  const pathPieces = path.indexOf('.') === -1 ? [path] : path.split('.');
+
+  for (let i = 0; i < plen; ++i) {
+    let curPath = '';
+    const p = paths[i];
+
+    if (!p.startsWith(path + '.')) {
+      continue;
+    }
+
+    const type = doc.$__schema.paths[p];
+    const pieces = type.splitPath().slice(pathPieces.length);
+    const len = pieces.length;
+
+    if (type.defaultValue === void 0) {
+      continue;
+    }
+
+    let cur = val;
+
+    for (let j = 0; j < len; ++j) {
+      if (cur == null) {
+        break;
+      }
+
+      const piece = pieces[j];
+
+      if (j === len - 1) {
+        if (cur[piece] !== void 0) {
+          break;
+        }
+
+        try {
+          const def = type.getDefault(doc, false);
+          if (def !== void 0) {
+            cur[piece] = def;
+          }
+        } catch (err) {
+          doc.invalidate(path + '.' + curPath, err);
+          break;
+        }
+
+        break;
+      }
+
+      curPath += (!curPath.length ? '' : '.') + piece;
+
+      cur[piece] = cur[piece] || {};
+      cur = cur[piece];
+    }
+  }
+}
+
+/**
+ * Builds the default doc structure
+ *
+ * @param {Object} obj
+ * @param {Object} [fields]
+ * @param {Boolean} [skipId]
+ * @param {Boolean} [exclude]
+ * @param {Object} [hasIncludedChildren]
+ * @api private
+ * @method $__buildDoc
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.$__buildDoc = function(obj, fields, skipId, exclude, hasIncludedChildren) {
+  const doc = {};
+
+  const paths = Object.keys(this.$__schema.paths).
+    // Don't build up any paths that are underneath a map, we don't know
+    // what the keys will be
+    filter(p => !p.includes('$*'));
+  const plen = paths.length;
+  let ii = 0;
+
+  for (; ii < plen; ++ii) {
+    const p = paths[ii];
+
+    if (p === '_id') {
+      if (skipId) {
+        continue;
+      }
+      if (obj && '_id' in obj) {
+        continue;
+      }
+    }
+
+    const path = this.$__schema.paths[p].splitPath();
+    const len = path.length;
+    const last = len - 1;
+    let curPath = '';
+    let doc_ = doc;
+    let included = false;
+
+    for (let i = 0; i < len; ++i) {
+      const piece = path[i];
+
+      if (!curPath.length) {
+        curPath = piece;
+      } else {
+        curPath += '.' + piece;
+      }
+
+      // support excluding intermediary levels
+      if (exclude === true) {
+        if (curPath in fields) {
+          break;
+        }
+      } else if (exclude === false && fields && !included) {
+        if (curPath in fields) {
+          included = true;
+        } else if (!hasIncludedChildren[curPath]) {
+          break;
+        }
+      }
+
+      if (i < last) {
+        doc_ = doc_[piece] || (doc_[piece] = {});
+      }
+    }
+  }
+
+  this._doc = doc;
+};
+
+/*!
+ * Converts to POJO when you use the document for querying
+ */
+
+Document.prototype.toBSON = function() {
+  return this.toObject(internalToObjectOptions);
+};
+
+/**
+ * Hydrates this document with the data in `doc`. Does not run setters or mark any paths modified.
+ *
+ * Called internally after a document is returned from MongoDB. Normally,
+ * you do **not** need to call this function on your own.
+ *
+ * This function triggers `init` [middleware](https://mongoosejs.com/docs/middleware.html).
+ * Note that `init` hooks are [synchronous](https://mongoosejs.com/docs/middleware.html#synchronous).
+ *
+ * @param {Object} doc raw document returned by mongo
+ * @param {Object} [opts]
+ * @param {Boolean} [opts.hydratedPopulatedDocs=false] If true, hydrate and mark as populated any paths that are populated in the raw document
+ * @param {Function} [fn]
+ * @api public
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.init = function(doc, opts, fn) {
+  if (typeof opts === 'function') {
+    fn = opts;
+    opts = null;
+  }
+
+  this.$__init(doc, opts);
+
+  if (fn) {
+    fn(null, this);
+  }
+
+  return this;
+};
+
+/**
+ * Alias for [`.init`](https://mongoosejs.com/docs/api/document.html#Document.prototype.init())
+ *
+ * @api public
+ */
+
+Document.prototype.$init = function() {
+  return this.constructor.prototype.init.apply(this, arguments);
+};
+
+/**
+ * Internal "init" function
+ *
+ * @param {Document} doc
+ * @param {Object} [opts]
+ * @returns {Document} this
+ * @api private
+ */
+
+Document.prototype.$__init = function(doc, opts) {
+  this.$isNew = false;
+  opts = opts || {};
+
+  // handle docs with populated paths
+  // If doc._id is not null or undefined
+  if (doc._id != null && opts.populated && opts.populated.length) {
+    const id = String(doc._id);
+    for (const item of opts.populated) {
+      if (item.isVirtual) {
+        this.$populated(item.path, utils.getValue(item.path, doc), item);
+      } else {
+        this.$populated(item.path, item._docs[id], item);
+      }
+
+      if (item._childDocs == null) {
+        continue;
+      }
+      for (const child of item._childDocs) {
+        if (child == null || child.$__ == null) {
+          continue;
+        }
+        child.$__.parent = this;
+      }
+      item._childDocs = [];
+    }
+  }
+
+  init(this, doc, this._doc, opts);
+
+  markArraySubdocsPopulated(this, opts.populated);
+  this.$emit('init', this);
+  this.constructor.emit('init', this);
+
+  const hasIncludedChildren = this.$__.exclude === false && this.$__.selected ?
+    $__hasIncludedChildren(this.$__.selected) :
+    null;
+
+  applyDefaults(this, this.$__.selected, this.$__.exclude, hasIncludedChildren, false, this.$__.skipDefaults);
+  return this;
+};
+
+/**
+ * Init helper.
+ *
+ * @param {Object} self document instance
+ * @param {Object} obj raw mongodb doc
+ * @param {Object} doc object we are initializing
+ * @param {Object} [opts] Optional Options
+ * @param {Boolean} [opts.setters] Call `applySetters` instead of `cast`
+ * @param {String} [prefix] Prefix to add to each path
+ * @api private
+ */
+
+function init(self, obj, doc, opts, prefix) {
+  prefix = prefix || '';
+
+  if (obj.$__ != null) {
+    obj = obj._doc;
+  }
+  const keys = Object.keys(obj);
+  const len = keys.length;
+  let schemaType;
+  let path;
+  let i;
+  let index = 0;
+  const strict = self.$__.strictMode;
+  const docSchema = self.$__schema;
+
+  while (index < len) {
+    _init(index++);
+  }
+
+  function _init(index) {
+    i = keys[index];
+    // avoid prototype pollution
+    if (i === '__proto__' || i === 'constructor') {
+      return;
+    }
+    path = prefix ? prefix + i : i;
+    schemaType = docSchema.path(path);
+    // Should still work if not a model-level discriminator, but should not be
+    // necessary. This is *only* to catch the case where we queried using the
+    // base model and the discriminated model has a projection
+    if (docSchema.$isRootDiscriminator && !self.$__isSelected(path)) {
+      return;
+    }
+
+    const value = obj[i];
+    if (!schemaType && utils.isPOJO(value)) {
+      // assume nested object
+      if (!doc[i]) {
+        doc[i] = {};
+        if (!strict && !(i in docSchema.tree) && !(i in docSchema.methods) && !(i in docSchema.virtuals)) {
+          self[i] = doc[i];
+        }
+      }
+      init(self, value, doc[i], opts, path + '.');
+    } else if (!schemaType) {
+      doc[i] = value;
+      if (!strict && !prefix) {
+        self[i] = value;
+      }
+    } else {
+      // Retain order when overwriting defaults
+      if (doc.hasOwnProperty(i) && value !== void 0 && !opts.hydratedPopulatedDocs) {
+        delete doc[i];
+      }
+      if (value === null) {
+        doc[i] = schemaType._castNullish(null);
+      } else if (value !== undefined) {
+        const wasPopulated = value.$__ == null ? null : value.$__.wasPopulated;
+
+        if (schemaType && !wasPopulated && !opts.hydratedPopulatedDocs) {
+          try {
+            if (opts && opts.setters) {
+              // Call applySetters with `init = false` because otherwise setters are a noop
+              const overrideInit = false;
+              doc[i] = schemaType.applySetters(value, self, overrideInit);
+            } else {
+              doc[i] = schemaType.cast(value, self, true);
+            }
+          } catch (e) {
+            self.invalidate(e.path, new ValidatorError({
+              path: e.path,
+              message: e.message,
+              type: 'cast',
+              value: e.value,
+              reason: e
+            }));
+          }
+        } else if (opts.hydratedPopulatedDocs) {
+          doc[i] = schemaType.cast(value, self, true);
+
+          if (doc[i] && doc[i].$__ && doc[i].$__.wasPopulated) {
+            self.$populated(path, doc[i].$__.wasPopulated.value, doc[i].$__.wasPopulated.options);
+          } else if (Array.isArray(doc[i]) && doc[i].length && doc[i][0]?.$__?.wasPopulated) {
+            self.$populated(path, doc[i].map(populatedDoc => populatedDoc?.$__?.wasPopulated?.value).filter(val => val != null), doc[i][0].$__.wasPopulated.options);
+          }
+        } else {
+          doc[i] = value;
+        }
+      }
+      // mark as hydrated
+      if (!self.$isModified(path)) {
+        self.$__.activePaths.init(path);
+      }
+    }
+  }
+}
+
+/**
+ * Sends an updateOne command with this document `_id` as the query selector.
+ *
+ * #### Example:
+ *
+ *     weirdCar.updateOne({$inc: {wheels:1}}, { w: 1 });
+ *
+ * #### Valid options:
+ *
+ *  - same as in [Model.updateOne](https://mongoosejs.com/docs/api/model.html#Model.updateOne)
+ *
+ * @see Model.updateOne https://mongoosejs.com/docs/api/model.html#Model.updateOne
+ * @param {Object} doc
+ * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions())
+ * @param {Object} [options.lean] if truthy, mongoose will return the document as a plain JavaScript object rather than a mongoose document. See [`Query.lean()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.lean()) and the [Mongoose lean tutorial](https://mongoosejs.com/docs/tutorials/lean.html).
+ * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict)
+ * @param {Boolean} [options.timestamps=null] If set to `false` and [schema-level timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this update. Note that this allows you to overwrite timestamps. Does nothing if schema-level timestamps are not set.
+ * @return {Query}
+ * @api public
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.updateOne = function updateOne(doc, options, callback) {
+  const query = this.constructor.updateOne({ _id: this._doc._id }, doc, options);
+  const self = this;
+  query.pre(function queryPreUpdateOne(cb) {
+    self.constructor._middleware.execPre('updateOne', self, [self], cb);
+  });
+  query.post(function queryPostUpdateOne(cb) {
+    self.constructor._middleware.execPost('updateOne', self, [self], {}, cb);
+  });
+
+  if (this.$session() != null) {
+    if (!('session' in query.options)) {
+      query.options.session = this.$session();
+    }
+  }
+
+  if (callback != null) {
+    return query.exec(callback);
+  }
+
+  return query;
+};
+
+/**
+ * Sends a replaceOne command with this document `_id` as the query selector.
+ *
+ * #### Valid options:
+ *
+ *  - same as in [Model.replaceOne](https://mongoosejs.com/docs/api/model.html#Model.replaceOne())
+ *
+ * @see Model.replaceOne https://mongoosejs.com/docs/api/model.html#Model.replaceOne()
+ * @param {Object} doc
+ * @param {Object} [options]
+ * @param {Function} [callback]
+ * @return {Query}
+ * @api public
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.replaceOne = function replaceOne() {
+  const args = [...arguments];
+  args.unshift({ _id: this._doc._id });
+  return this.constructor.replaceOne.apply(this.constructor, args);
+};
+
+/**
+ * Getter/setter around the session associated with this document. Used to
+ * automatically set `session` if you `save()` a doc that you got from a
+ * query with an associated session.
+ *
+ * #### Example:
+ *
+ *     const session = MyModel.startSession();
+ *     const doc = await MyModel.findOne().session(session);
+ *     doc.$session() === session; // true
+ *     doc.$session(null);
+ *     doc.$session() === null; // true
+ *
+ * If this is a top-level document, setting the session propagates to all child
+ * docs.
+ *
+ * @param {ClientSession} [session] overwrite the current session
+ * @return {ClientSession}
+ * @method $session
+ * @api public
+ * @memberOf Document
+ */
+
+Document.prototype.$session = function $session(session) {
+  if (arguments.length === 0) {
+    if (this.$__.session != null && this.$__.session.hasEnded) {
+      this.$__.session = null;
+      return null;
+    }
+    return this.$__.session;
+  }
+
+  if (session != null && session.hasEnded) {
+    throw new MongooseError('Cannot set a document\'s session to a session that has ended. Make sure you haven\'t ' +
+      'called `endSession()` on the session you are passing to `$session()`.');
+  }
+
+  if (session == null && this.$__.session == null) {
+    return;
+  }
+
+  this.$__.session = session;
+
+  if (!this.$isSubdocument) {
+    const subdocs = this.$getAllSubdocs();
+    for (const child of subdocs) {
+      child.$session(session);
+    }
+  }
+
+  return session;
+};
+
+/**
+ * Getter/setter around whether this document will apply timestamps by
+ * default when using `save()` and `bulkSave()`.
+ *
+ * #### Example:
+ *
+ *     const TestModel = mongoose.model('Test', new Schema({ name: String }, { timestamps: true }));
+ *     const doc = new TestModel({ name: 'John Smith' });
+ *
+ *     doc.$timestamps(); // true
+ *
+ *     doc.$timestamps(false);
+ *     await doc.save(); // Does **not** apply timestamps
+ *
+ * @param {Boolean} [value] overwrite the current session
+ * @return {Document|boolean|undefined} When used as a getter (no argument), a boolean will be returned indicating the timestamps option state or if unset "undefined" will be used, otherwise will return "this"
+ * @method $timestamps
+ * @api public
+ * @memberOf Document
+ */
+
+Document.prototype.$timestamps = function $timestamps(value) {
+  if (arguments.length === 0) {
+    if (this.$__.timestamps != null) {
+      return this.$__.timestamps;
+    }
+
+    if (this.$__schema) {
+      return this.$__schema.options.timestamps;
+    }
+
+    return undefined;
+  }
+
+  const currentValue = this.$timestamps();
+  if (value !== currentValue) {
+    this.$__.timestamps = value;
+  }
+
+  return this;
+};
+
+/**
+ * Overwrite all values in this document with the values of `obj`, except
+ * for immutable properties. Behaves similarly to `set()`, except for it
+ * unsets all properties that aren't in `obj`.
+ *
+ * @param {Object} obj the object to overwrite this document with
+ * @method overwrite
+ * @memberOf Document
+ * @instance
+ * @api public
+ * @return {Document} this
+ */
+
+Document.prototype.overwrite = function overwrite(obj) {
+  const keys = Array.from(new Set(Object.keys(this._doc).concat(Object.keys(obj))));
+
+  for (const key of keys) {
+    if (key === '_id') {
+      continue;
+    }
+    // Explicitly skip version key
+    if (this.$__schema.options.versionKey && key === this.$__schema.options.versionKey) {
+      continue;
+    }
+    if (this.$__schema.options.discriminatorKey && key === this.$__schema.options.discriminatorKey) {
+      continue;
+    }
+    this.$set(key, obj[key]);
+  }
+
+  return this;
+};
+
+/**
+ * Alias for `set()`, used internally to avoid conflicts
+ *
+ * @param {String|Object} path path or object of key/vals to set
+ * @param {Any} val the value to set
+ * @param {Schema|String|Number|Buffer|*} [type] optionally specify a type for "on-the-fly" attributes
+ * @param {Object} [options] optionally specify options that modify the behavior of the set
+ * @param {Boolean} [options.merge=false] if true, setting a [nested path](https://mongoosejs.com/docs/subdocs.html#subdocuments-versus-nested-paths) will merge existing values rather than overwrite the whole object. So `doc.set('nested', { a: 1, b: 2 })` becomes `doc.set('nested.a', 1); doc.set('nested.b', 2);`
+ * @return {Document} this
+ * @method $set
+ * @memberOf Document
+ * @instance
+ * @api public
+ */
+
+Document.prototype.$set = function $set(path, val, type, options) {
+  if (utils.isPOJO(type)) {
+    options = type;
+    type = undefined;
+  }
+
+  const merge = options && options.merge;
+  const adhoc = type && type !== true;
+  const constructing = type === true;
+  let adhocs;
+  let keys;
+  let i = 0;
+  let pathtype;
+  let key;
+  let prefix;
+
+  const userSpecifiedStrict = options && 'strict' in options;
+  let strict = userSpecifiedStrict
+    ? options.strict
+    : this.$__.strictMode;
+
+  if (adhoc) {
+    adhocs = this.$__.adhocPaths || (this.$__.adhocPaths = {});
+    adhocs[path] = this.$__schema.interpretAsType(path, type, this.$__schema.options);
+  }
+
+  if (path == null) {
+    [path, val] = [val, path];
+  } else if (typeof path !== 'string') {
+    // new Document({ key: val })
+    if (path instanceof Document) {
+      if (path.$__isNested) {
+        path = path.toObject();
+      } else {
+        // This ternary is to support gh-7898 (copying virtuals if same schema)
+        // while not breaking gh-10819, which for some reason breaks if we use toObject()
+        path = path.$__schema === this.$__schema
+          ? applyVirtuals(path, { ...path._doc })
+          : path._doc;
+      }
+    }
+    if (path == null) {
+      [path, val] = [val, path];
+    }
+
+    prefix = val ? val + '.' : '';
+    keys = getKeysInSchemaOrder(this.$__schema, path);
+
+    const len = keys.length;
+
+    // `_skipMinimizeTopLevel` is because we may have deleted the top-level
+    // nested key to ensure key order.
+    const _skipMinimizeTopLevel = options && options._skipMinimizeTopLevel || false;
+    if (len === 0 && _skipMinimizeTopLevel) {
+      delete options._skipMinimizeTopLevel;
+      if (val) {
+        this.$set(val, {});
+      }
+      return this;
+    }
+
+    options = Object.assign({}, options, { _skipMinimizeTopLevel: false });
+
+    for (let i = 0; i < len; ++i) {
+      key = keys[i];
+      const pathName = prefix ? prefix + key : key;
+      pathtype = this.$__schema.pathType(pathName);
+      const valForKey = path[key];
+
+      // On initial set, delete any nested keys if we're going to overwrite
+      // them to ensure we keep the user's key order.
+      if (type === true &&
+          !prefix &&
+          valForKey != null &&
+          pathtype === 'nested' &&
+          this._doc[key] != null) {
+        delete this._doc[key];
+      }
+
+      if (utils.isNonBuiltinObject(valForKey) && pathtype === 'nested') {
+        this.$set(pathName, valForKey, constructing, Object.assign({}, options, { _skipMarkModified: true }));
+        $applyDefaultsToNested(this.$get(pathName), pathName, this);
+        continue;
+      } else if (strict) {
+        // Don't overwrite defaults with undefined keys (gh-3981) (gh-9039)
+        if (constructing && valForKey === void 0 &&
+            this.$get(pathName) !== void 0) {
+          continue;
+        }
+
+        if (pathtype === 'adhocOrUndefined') {
+          pathtype = getEmbeddedDiscriminatorPath(this, pathName, { typeOnly: true });
+        }
+
+        if (pathtype === 'real' || pathtype === 'virtual') {
+          this.$set(pathName, valForKey, constructing, options);
+        } else if (pathtype === 'nested' && valForKey instanceof Document) {
+          this.$set(pathName,
+            valForKey.toObject({ transform: false }), constructing, options);
+        } else if (strict === 'throw') {
+          if (pathtype === 'nested') {
+            throw new ObjectExpectedError(key, valForKey);
+          } else {
+            throw new StrictModeError(key);
+          }
+        } else if (pathtype === 'nested' && valForKey == null) {
+          this.$set(pathName, valForKey, constructing, options);
+        }
+      } else {
+        this.$set(pathName, valForKey, constructing, options);
+      }
+    }
+
+    // Ensure all properties are in correct order
+    const orderedDoc = {};
+    const orderedKeys = Object.keys(this.$__schema.tree);
+    for (let i = 0, len = orderedKeys.length; i < len; ++i) {
+      (key = orderedKeys[i]) &&
+      (this._doc.hasOwnProperty(key)) &&
+      (orderedDoc[key] = undefined);
+    }
+    this._doc = Object.assign(orderedDoc, this._doc);
+
+    return this;
+  }
+
+  let pathType = this.$__schema.pathType(path);
+  let parts = null;
+  if (pathType === 'adhocOrUndefined') {
+    parts = path.indexOf('.') === -1 ? [path] : path.split('.');
+    pathType = getEmbeddedDiscriminatorPath(this, parts, { typeOnly: true });
+  }
+  if (pathType === 'adhocOrUndefined' && !userSpecifiedStrict) {
+    // May be path underneath non-strict schema
+    if (parts == null) {
+      parts = path.indexOf('.') === -1 ? [path] : path.split('.');
+    }
+    const subdocStrict = getSubdocumentStrictValue(this.$__schema, parts);
+    if (subdocStrict !== undefined) {
+      strict = subdocStrict;
+    }
+  }
+
+  // Assume this is a Mongoose document that was copied into a POJO using
+  // `Object.assign()` or `{...doc}`
+  val = handleSpreadDoc(val, true);
+
+  // if this doc is being constructed we should not trigger getters
+  const priorVal = (() => {
+    if (this.$__.priorDoc != null) {
+      return this.$__.priorDoc.$__getValue(path);
+    }
+    if (constructing) {
+      return void 0;
+    }
+    return this.$__getValue(path);
+  })();
+
+  if (pathType === 'nested' && val) {
+    if (typeof val === 'object' && val != null) {
+      if (val.$__ != null) {
+        val = val.toObject(internalToObjectOptions);
+      }
+      if (val == null) {
+        this.invalidate(path, new MongooseError.CastError('Object', val, path));
+        return this;
+      }
+      const wasModified = this.$isModified(path);
+      const hasInitialVal = this.$__.savedState != null && this.$__.savedState.hasOwnProperty(path);
+      if (this.$__.savedState != null && !this.$isNew && !this.$__.savedState.hasOwnProperty(path)) {
+        const initialVal = this.$__getValue(path);
+        this.$__.savedState[path] = initialVal;
+
+        const keys = Object.keys(initialVal || {});
+        for (const key of keys) {
+          this.$__.savedState[path + '.' + key] = initialVal[key];
+        }
+      }
+
+      if (!merge) {
+        this.$__setValue(path, null);
+        cleanModifiedSubpaths(this, path);
+      } else {
+        return this.$set(val, path, constructing, options);
+      }
+
+      const keys = getKeysInSchemaOrder(this.$__schema, val, path);
+
+      this.$__setValue(path, {});
+      for (const key of keys) {
+        this.$set(path + '.' + key, val[key], constructing, { ...options, _skipMarkModified: true });
+      }
+      if (priorVal != null &&
+          (!wasModified || hasInitialVal) &&
+          utils.deepEqual(hasInitialVal ? this.$__.savedState[path] : priorVal, val)) {
+        this.unmarkModified(path);
+      } else {
+        this.markModified(path);
+      }
+      return this;
+    }
+    this.invalidate(path, new MongooseError.CastError('Object', val, path));
+    return this;
+  }
+
+  let schema;
+  if (parts == null) {
+    parts = path.indexOf('.') === -1 ? [path] : path.split('.');
+  }
+
+  // Might need to change path for top-level alias
+  if (typeof this.$__schema.aliases[parts[0]] === 'string') {
+    parts[0] = this.$__schema.aliases[parts[0]];
+  }
+
+  if (pathType === 'adhocOrUndefined' && strict) {
+    // check for roots that are Mixed types
+    let mixed;
+
+    for (i = 0; i < parts.length; ++i) {
+      const subpath = parts.slice(0, i + 1).join('.');
+
+      // If path is underneath a virtual, bypass everything and just set it.
+      if (i + 1 < parts.length && this.$__schema.pathType(subpath) === 'virtual') {
+        mpath.set(path, val, this);
+        return this;
+      }
+
+      schema = this.$__schema.path(subpath);
+      if (schema == null) {
+        continue;
+      }
+
+      if (schema instanceof MixedSchema) {
+        // allow changes to sub paths of mixed types
+        mixed = true;
+        break;
+      } else if (schema.$isSchemaMap && schema.$__schemaType instanceof MixedSchema && i < parts.length - 1) {
+        // Map of mixed and not the last element in the path resolves to mixed
+        mixed = true;
+        schema = schema.$__schemaType;
+        break;
+      }
+    }
+
+    if (schema == null) {
+      // Check for embedded discriminators
+      schema = getEmbeddedDiscriminatorPath(this, path);
+    }
+
+    if (!mixed && !schema) {
+      if (strict === 'throw') {
+        throw new StrictModeError(path);
+      }
+      return this;
+    }
+  } else if (pathType === 'virtual') {
+    schema = this.$__schema.virtualpath(path);
+    schema.applySetters(val, this);
+    return this;
+  } else {
+    schema = this.$__path(path);
+  }
+
+  // gh-4578, if setting a deeply nested path that doesn't exist yet, create it
+  let cur = this._doc;
+  let curPath = '';
+  for (i = 0; i < parts.length - 1; ++i) {
+    cur = cur[parts[i]];
+    curPath += (curPath.length !== 0 ? '.' : '') + parts[i];
+    if (!cur) {
+      this.$set(curPath, {});
+      // Hack re: gh-5800. If nested field is not selected, it probably exists
+      // so `MongoServerError: cannot use the part (nested of nested.num) to
+      // traverse the element ({nested: null})` is not likely. If user gets
+      // that error, its their fault for now. We should reconsider disallowing
+      // modifying not selected paths for 6.x
+      if (!this.$__isSelected(curPath)) {
+        this.unmarkModified(curPath);
+      }
+      cur = this.$__getValue(curPath);
+    }
+  }
+
+  let pathToMark;
+
+  // When using the $set operator the path to the field must already exist.
+  // Else mongodb throws: "LEFT_SUBFIELD only supports Object"
+
+  if (parts.length <= 1) {
+    pathToMark = path;
+  } else {
+    const len = parts.length;
+    for (i = 0; i < len; ++i) {
+      const subpath = parts.slice(0, i + 1).join('.');
+      if (this.$get(subpath, null, { getters: false }) === null) {
+        pathToMark = subpath;
+        break;
+      }
+    }
+
+    if (!pathToMark) {
+      pathToMark = path;
+    }
+  }
+
+  if (!schema) {
+    this.$__set(pathToMark, path, options, constructing, parts, schema, val, priorVal);
+
+    if (pathType === 'nested' && val == null) {
+      cleanModifiedSubpaths(this, path);
+    }
+    return this;
+  }
+
+  // If overwriting a subdocument path, make sure to clear out
+  // any errors _before_ setting, so new errors that happen
+  // get persisted. Re: #9080
+  if (schema.$isSingleNested || schema.$isMongooseArray) {
+    _markValidSubpaths(this, path);
+  }
+
+  if (val != null && merge && schema.$isSingleNested) {
+    if (val instanceof Document) {
+      val = val.toObject({ virtuals: false, transform: false });
+    }
+    const keys = Object.keys(val);
+    for (const key of keys) {
+      this.$set(path + '.' + key, val[key], constructing, options);
+    }
+
+    return this;
+  }
+
+  let shouldSet = true;
+  try {
+    // If the user is trying to set a ref path to a document with
+    // the correct model name, treat it as populated
+    const refMatches = (() => {
+      if (schema.options == null) {
+        return false;
+      }
+      if (!(val instanceof Document)) {
+        return false;
+      }
+      const model = val.constructor;
+
+      // Check ref
+      const refOpt = typeof schema.options.ref === 'function' && !schema.options.ref[modelSymbol] ? schema.options.ref.call(this, this) : schema.options.ref;
+
+      const ref = refOpt?.modelName || refOpt;
+      if (ref != null && (ref === model.modelName || ref === model.baseModelName)) {
+        return true;
+      }
+
+      // Check refPath
+      const refPath = schema.options.refPath;
+      if (refPath == null) {
+        return false;
+      }
+      const modelName = val.get(refPath);
+      return modelName === model.modelName || modelName === model.baseModelName;
+    })();
+
+    let didPopulate = false;
+    if (refMatches && val instanceof Document && (!val.$__.wasPopulated || utils.deepEqual(val.$__.wasPopulated.value, val._doc._id))) {
+      const unpopulatedValue = (schema && schema.$isSingleNested) ? schema.cast(val, this) : val._doc._id;
+      this.$populated(path, unpopulatedValue, { [populateModelSymbol]: val.constructor });
+      val.$__.wasPopulated = { value: unpopulatedValue };
+      didPopulate = true;
+    }
+
+    let popOpts;
+    const typeKey = this.$__schema.options.typeKey;
+    if (schema.options &&
+        Array.isArray(schema.options[typeKey]) &&
+        schema.options[typeKey].length &&
+        schema.options[typeKey][0] &&
+        schema.options[typeKey][0].ref &&
+        _isManuallyPopulatedArray(val, schema.options[typeKey][0].ref)) {
+      popOpts = { [populateModelSymbol]: val[0].constructor };
+      this.$populated(path, val.map(function(v) { return v._doc._id; }), popOpts);
+
+      for (const doc of val) {
+        doc.$__.wasPopulated = { value: doc._doc._id };
+      }
+      didPopulate = true;
+    }
+
+    if (!refMatches || !schema.$isSingleNested || !val.$__) {
+      // If this path is underneath a single nested schema, we'll call the setter
+      // later in `$__set()` because we don't take `_doc` when we iterate through
+      // a single nested doc. That's to make sure we get the correct context.
+      // Otherwise we would double-call the setter, see gh-7196.
+      let setterContext = this;
+      if (this.$__schema.singleNestedPaths[path] != null && parts.length > 1) {
+        setterContext = getDeepestSubdocumentForPath(this, parts, this.schema);
+      }
+      if (options != null && options.overwriteImmutable) {
+        val = schema.applySetters(val, setterContext, false, priorVal, { overwriteImmutable: true });
+      } else {
+        val = schema.applySetters(val, setterContext, false, priorVal);
+      }
+    }
+
+    if (Array.isArray(val) &&
+        !Array.isArray(schema) &&
+        schema.$isMongooseDocumentArray &&
+        val.length !== 0 &&
+        val[0] != null &&
+        val[0].$__ != null &&
+        val[0].$__.populated != null) {
+      const populatedPaths = Object.keys(val[0].$__.populated);
+      for (const populatedPath of populatedPaths) {
+        this.$populated(path + '.' + populatedPath,
+          val.map(v => v.$populated(populatedPath)),
+          val[0].$__.populated[populatedPath].options);
+      }
+      didPopulate = true;
+    }
+
+    if (!didPopulate && this.$__.populated) {
+      // If this array partially contains populated documents, convert them
+      // all to ObjectIds re: #8443
+      if (Array.isArray(val) && this.$__.populated[path]) {
+        for (let i = 0; i < val.length; ++i) {
+          if (val[i] instanceof Document) {
+            val.set(i, val[i]._doc._id, true);
+          }
+        }
+      }
+      delete this.$__.populated[path];
+    }
+
+    if (val != null && schema.$isSingleNested) {
+      _checkImmutableSubpaths(val, schema, priorVal);
+    }
+
+    this.$markValid(path);
+  } catch (e) {
+    if (e instanceof MongooseError.StrictModeError && e.isImmutableError) {
+      this.invalidate(path, e);
+    } else if (e instanceof MongooseError.CastError) {
+      this.invalidate(e.path, e);
+      if (e.$originalErrorPath) {
+        this.invalidate(path,
+          new MongooseError.CastError(schema.instance, val, path, e.$originalErrorPath));
+      }
+    } else {
+      this.invalidate(path,
+        new MongooseError.CastError(schema.instance, val, path, e));
+    }
+    shouldSet = false;
+  }
+
+  if (shouldSet) {
+    let savedState = null;
+    let savedStatePath = null;
+    if (!constructing) {
+      const doc = this.$isSubdocument ? this.ownerDocument() : this;
+      savedState = doc.$__.savedState;
+      savedStatePath = this.$isSubdocument ? this.$__.fullPath + '.' + path : path;
+      doc.$__saveInitialState(savedStatePath);
+    }
+
+    this.$__set(pathToMark, path, options, constructing, parts, schema, val, priorVal);
+
+    const isInTransaction = !!this.$__.session?.transaction;
+    const isModifiedWithinTransaction = this.$__.session &&
+      this.$__.session[sessionNewDocuments] &&
+      this.$__.session[sessionNewDocuments].has(this) &&
+      this.$__.session[sessionNewDocuments].get(this).modifiedPaths &&
+      !this.$__.session[sessionNewDocuments].get(this).modifiedPaths.has(savedStatePath);
+    if (savedState != null &&
+        savedState.hasOwnProperty(savedStatePath) &&
+        (!isInTransaction || isModifiedWithinTransaction) &&
+        utils.deepEqual(val, savedState[savedStatePath])) {
+      this.unmarkModified(path);
+    }
+  }
+
+  if (schema.$isSingleNested && (this.isDirectModified(path) || val == null)) {
+    cleanModifiedSubpaths(this, path);
+  }
+
+  return this;
+};
+
+/*!
+ * ignore
+ */
+
+function _isManuallyPopulatedArray(val, ref) {
+  if (!Array.isArray(val)) {
+    return false;
+  }
+  if (val.length === 0) {
+    return false;
+  }
+
+  for (const el of val) {
+    if (!(el instanceof Document)) {
+      return false;
+    }
+    const modelName = el.constructor.modelName;
+    if (modelName == null) {
+      return false;
+    }
+    if (el.constructor.modelName != ref && el.constructor.baseModelName != ref) {
+      return false;
+    }
+  }
+
+  return true;
+}
+
+/**
+ * Sets the value of a path, or many paths.
+ * Alias for [`.$set`](https://mongoosejs.com/docs/api/document.html#Document.prototype.$set()).
+ *
+ * #### Example:
+ *
+ *     // path, value
+ *     doc.set(path, value)
+ *
+ *     // object
+ *     doc.set({
+ *         path  : value
+ *       , path2 : {
+ *            path  : value
+ *         }
+ *     })
+ *
+ *     // on-the-fly cast to number
+ *     doc.set(path, value, Number)
+ *
+ *     // on-the-fly cast to string
+ *     doc.set(path, value, String)
+ *
+ *     // changing strict mode behavior
+ *     doc.set(path, value, { strict: false });
+ *
+ * @param {String|Object} path path or object of key/vals to set
+ * @param {Any} val the value to set
+ * @param {Schema|String|Number|Buffer|*} [type] optionally specify a type for "on-the-fly" attributes
+ * @param {Object} [options] optionally specify options that modify the behavior of the set
+ * @return {Document} this
+ * @api public
+ * @method set
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.set = Document.prototype.$set;
+
+/**
+ * Determine if we should mark this change as modified.
+ *
+ * @param {never} pathToMark UNUSED
+ * @param {String|Symbol} path
+ * @param {Object} options
+ * @param {Any} constructing
+ * @param {never} parts UNUSED
+ * @param {Schema} schema
+ * @param {Any} val
+ * @param {Any} priorVal
+ * @return {Boolean}
+ * @api private
+ * @method $__shouldModify
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.$__shouldModify = function(pathToMark, path, options, constructing, parts, schema, val, priorVal) {
+  if (options && options._skipMarkModified) {
+    return false;
+  }
+  if (this.$isNew) {
+    return true;
+  }
+  // Is path already modified? If so, always modify. We may unmark modified later.
+  if (path in this.$__.activePaths.getStatePaths('modify')) {
+    return true;
+  }
+
+  if (val === void 0 && !this.$__isSelected(path)) {
+    // when a path is not selected in a query, its initial
+    // value will be undefined.
+    return true;
+  }
+
+  if (val === void 0 && path in this.$__.activePaths.getStatePaths('default')) {
+    // we're just unsetting the default value which was never saved
+    return false;
+  }
+
+  // gh-3992: if setting a populated field to a doc, don't mark modified
+  // if they have the same _id
+  if (this.$populated(path) &&
+      val instanceof Document &&
+      deepEqual(val._doc._id, priorVal)) {
+    return false;
+  }
+
+  if (!deepEqual(val, priorVal !== undefined ? priorVal : utils.getValue(path, this))) {
+    return true;
+  }
+
+  if (!constructing &&
+      val !== null &&
+      val !== undefined &&
+      path in this.$__.activePaths.getStatePaths('default') &&
+      deepEqual(val, schema.getDefault(this, constructing))) {
+    // a path with a default was $unset on the server
+    // and the user is setting it to the same value again
+    return true;
+  }
+  return false;
+};
+
+/**
+ * Handles the actual setting of the value and marking the path modified if appropriate.
+ *
+ * @param {String} pathToMark
+ * @param {String|Symbol} path
+ * @param {Object} options
+ * @param {Any} constructing
+ * @param {Array} parts
+ * @param {Schema} schema
+ * @param {Any} val
+ * @param {Any} priorVal
+ * @api private
+ * @method $__set
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.$__set = function(pathToMark, path, options, constructing, parts, schema, val, priorVal) {
+  Embedded = Embedded || require('./types/arraySubdocument');
+
+  const shouldModify = this.$__shouldModify(pathToMark, path, options, constructing, parts,
+    schema, val, priorVal);
+
+  if (shouldModify) {
+    if (this.$__.primitiveAtomics && this.$__.primitiveAtomics[path]) {
+      delete this.$__.primitiveAtomics[path];
+      if (Object.keys(this.$__.primitiveAtomics).length === 0) {
+        delete this.$__.primitiveAtomics;
+      }
+    }
+    this.markModified(pathToMark);
+
+    // handle directly setting arrays (gh-1126)
+    MongooseArray || (MongooseArray = require('./types/array'));
+    if (val && utils.isMongooseArray(val)) {
+      val._registerAtomic('$set', val);
+
+      // Update embedded document parent references (gh-5189)
+      if (utils.isMongooseDocumentArray(val)) {
+        val.forEach(function(item) {
+          item && item.__parentArray && (item.__parentArray = val);
+        });
+      }
+    }
+  } else if (Array.isArray(val) && Array.isArray(priorVal) && utils.isMongooseArray(val) && utils.isMongooseArray(priorVal)) {
+    val[arrayAtomicsSymbol] = priorVal[arrayAtomicsSymbol];
+    val[arrayAtomicsBackupSymbol] = priorVal[arrayAtomicsBackupSymbol];
+    if (utils.isMongooseDocumentArray(val)) {
+      val.forEach(doc => {
+        if (doc != null) {
+          doc.$isNew = false;
+        }
+      });
+    }
+  }
+
+  let obj = this._doc;
+  let i = 0;
+  const l = parts.length;
+  let cur = '';
+
+  for (; i < l; i++) {
+    const next = i + 1;
+    const last = next === l;
+    cur += (cur ? '.' + parts[i] : parts[i]);
+    if (specialProperties.has(parts[i])) {
+      return;
+    }
+
+    if (last) {
+      if (obj instanceof Map) {
+        obj.set(parts[i], val);
+      } else if (obj.$isSingleNested) {
+        if (!(parts[i] in obj)) {
+          obj[parts[i]] = val;
+          obj._doc[parts[i]] = val;
+        } else {
+          obj._doc[parts[i]] = val;
+        }
+        if (shouldModify) {
+          obj.markModified(parts[i]);
+        }
+      } else {
+        obj[parts[i]] = val;
+      }
+    } else {
+      const isMap = obj instanceof Map;
+      let value = isMap ? obj.get(parts[i]) : obj[parts[i]];
+      if (utils.isPOJO(value)) {
+        obj = value;
+      } else if (value && value instanceof Embedded) {
+        obj = value;
+      } else if (value && !Array.isArray(value) && value.$isSingleNested) {
+        obj = value;
+      } else if (value && Array.isArray(value)) {
+        obj = value;
+      } else if (value == null) {
+        value = {};
+        if (isMap) {
+          obj.set(parts[i], value);
+        } else {
+          obj[parts[i]] = value;
+        }
+        obj = value;
+      } else {
+        obj = value;
+      }
+    }
+  }
+};
+
+/**
+ * Gets a raw value from a path (no getters)
+ *
+ * @param {String} path
+ * @return {Any} Returns the value from the given `path`.
+ * @api private
+ */
+
+Document.prototype.$__getValue = function(path) {
+  if (typeof path !== 'string' && !Array.isArray(path)) {
+    throw new TypeError(
+      `Invalid \`path\`. Must be either string or array. Got "${path}" (type ${typeof path})`
+    );
+  }
+  return utils.getValue(path, this._doc);
+};
+
+/**
+ * Increments the numeric value at `path` by the given `val`.
+ * When you call `save()` on this document, Mongoose will send a
+ * [`$inc`](https://www.mongodb.com/docs/manual/reference/operator/update/inc/)
+ * as opposed to a `$set`.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ counter: Number });
+ *     const Test = db.model('Test', schema);
+ *
+ *     const doc = await Test.create({ counter: 0 });
+ *     doc.$inc('counter', 2);
+ *     await doc.save(); // Sends a `{ $inc: { counter: 2 } }` to MongoDB
+ *     doc.counter; // 2
+ *
+ *     doc.counter += 2;
+ *     await doc.save(); // Sends a `{ $set: { counter: 2 } }` to MongoDB
+ *
+ * @param {String|Array} path path or paths to update
+ * @param {Number} val increment `path` by this value
+ * @return {Document} this
+ */
+
+Document.prototype.$inc = function $inc(path, val) {
+  if (val == null) {
+    val = 1;
+  }
+
+  if (Array.isArray(path)) {
+    path.forEach((p) => this.$inc(p, val));
+    return this;
+  }
+
+  const schemaType = this.$__path(path);
+  if (schemaType == null) {
+    if (this.$__.strictMode === 'throw') {
+      throw new StrictModeError(path);
+    } else if (this.$__.strictMode === true) {
+      return this;
+    }
+  } else if (schemaType.instance !== 'Number') {
+    this.invalidate(path, new MongooseError.CastError(schemaType.instance, val, path));
+    return this;
+  }
+
+  const currentValue = this.$__getValue(path) || 0;
+  let shouldSet = false;
+  let valToSet = null;
+  let valToInc = val;
+
+  try {
+    val = schemaType.cast(val);
+    valToSet = schemaType.applySetters(currentValue + val, this);
+    valToInc = valToSet - currentValue;
+    shouldSet = true;
+  } catch (err) {
+    this.invalidate(path, new MongooseError.CastError('number', val, path, err));
+  }
+
+  if (shouldSet) {
+    this.$__.primitiveAtomics = this.$__.primitiveAtomics || {};
+    if (this.$__.primitiveAtomics[path] == null) {
+      this.$__.primitiveAtomics[path] = { $inc: valToInc };
+    } else {
+      this.$__.primitiveAtomics[path].$inc += valToInc;
+    }
+    this.markModified(path);
+    this.$__setValue(path, valToSet);
+  }
+
+  return this;
+};
+
+/**
+ * Sets a raw value for a path (no casting, setters, transformations)
+ *
+ * @param {String} path
+ * @param {Object} value
+ * @return {Document} this
+ * @api private
+ */
+
+Document.prototype.$__setValue = function(path, val) {
+  utils.setValue(path, val, this._doc);
+  return this;
+};
+
+/**
+ * Returns the value of a path.
+ *
+ * #### Example:
+ *
+ *     // path
+ *     doc.get('age') // 47
+ *
+ *     // dynamic casting to a string
+ *     doc.get('age', String) // "47"
+ *
+ * @param {String} path
+ * @param {Schema|String|Number|Buffer|*} [type] optionally specify a type for on-the-fly attributes
+ * @param {Object} [options]
+ * @param {Boolean} [options.virtuals=false] Apply virtuals before getting this path
+ * @param {Boolean} [options.getters=true] If false, skip applying getters and just get the raw value
+ * @return {Any}
+ * @api public
+ */
+
+Document.prototype.get = function(path, type, options) {
+  let adhoc;
+  if (options == null) {
+    options = {};
+  }
+  if (type) {
+    adhoc = this.$__schema.interpretAsType(path, type, this.$__schema.options);
+  }
+  const noDottedPath = options.noDottedPath;
+
+  // Fast path if we know we're just accessing top-level path on the document:
+  // just get the schema path, avoid `$__path()` because that does string manipulation
+  let schema = noDottedPath ? this.$__schema.paths[path] : this.$__path(path);
+  if (schema == null) {
+    schema = this.$__schema.virtualpath(path);
+
+    if (schema != null) {
+      return schema.applyGetters(void 0, this);
+    }
+  }
+
+  if (noDottedPath) {
+    let obj = this._doc[path];
+    if (adhoc) {
+      obj = adhoc.cast(obj);
+    }
+    if (schema != null && options.getters !== false) {
+      return schema.applyGetters(obj, this);
+    }
+    return obj;
+  }
+
+  if (schema != null && schema.instance === 'Mixed') {
+    const virtual = this.$__schema.virtualpath(path);
+    if (virtual != null) {
+      schema = virtual;
+    }
+  }
+
+  const hasDot = path.indexOf('.') !== -1;
+  let obj = this._doc;
+
+  const pieces = hasDot ? path.split('.') : [path];
+  // Might need to change path for top-level alias
+  if (typeof this.$__schema.aliases[pieces[0]] === 'string') {
+    pieces[0] = this.$__schema.aliases[pieces[0]];
+  }
+
+  for (let i = 0, l = pieces.length; i < l; i++) {
+    if (obj && obj._doc) {
+      obj = obj._doc;
+    }
+
+    if (obj == null) {
+      obj = void 0;
+    } else if (obj instanceof Map) {
+      obj = obj.get(pieces[i], { getters: false });
+    } else if (i === l - 1) {
+      obj = utils.getValue(pieces[i], obj);
+    } else {
+      obj = obj[pieces[i]];
+    }
+  }
+
+  if (adhoc) {
+    obj = adhoc.cast(obj);
+  }
+
+  if (schema != null && options.getters !== false) {
+    obj = schema.applyGetters(obj, this);
+  } else if (this.$__schema.nested[path] && options.virtuals) {
+    // Might need to apply virtuals if this is a nested path
+    return applyVirtuals(this, clone(obj) || {}, { path: path });
+  }
+
+  return obj;
+};
+
+/*!
+ * ignore
+ */
+
+Document.prototype[getSymbol] = Document.prototype.get;
+Document.prototype.$get = Document.prototype.get;
+
+/**
+ * Returns the schematype for the given `path`.
+ *
+ * @param {String} path
+ * @return {SchemaPath}
+ * @api private
+ * @method $__path
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.$__path = function(path) {
+  const adhocs = this.$__.adhocPaths;
+  const adhocType = adhocs && adhocs.hasOwnProperty(path) ? adhocs[path] : null;
+
+  if (adhocType) {
+    return adhocType;
+  }
+  return this.$__schema.path(path);
+};
+
+/**
+ * Marks the path as having pending changes to write to the db.
+ *
+ * _Very helpful when using [Mixed](https://mongoosejs.com/docs/schematypes.html#mixed) types._
+ *
+ * #### Example:
+ *
+ *     doc.mixed.type = 'changed';
+ *     doc.markModified('mixed.type');
+ *     doc.save() // changes to mixed.type are now persisted
+ *
+ * @param {String} path the path to mark modified
+ * @param {Document} [scope] the scope to run validators with
+ * @api public
+ */
+
+Document.prototype.markModified = function(path, scope) {
+  this.$__saveInitialState(path);
+
+  this.$__.activePaths.modify(path);
+  if (scope != null && !this.$isSubdocument) {
+    this.$__.pathsToScopes = this.$__pathsToScopes || {};
+    this.$__.pathsToScopes[path] = scope;
+  }
+};
+
+/*!
+ * ignore
+ */
+
+Document.prototype.$__saveInitialState = function $__saveInitialState(path) {
+  const savedState = this.$__.savedState;
+  const savedStatePath = path;
+  if (savedState != null) {
+    const firstDot = savedStatePath.indexOf('.');
+    const topLevelPath = firstDot === -1 ? savedStatePath : savedStatePath.slice(0, firstDot);
+    if (!savedState.hasOwnProperty(topLevelPath)) {
+      savedState[topLevelPath] = clone(this.$__getValue(topLevelPath));
+    }
+  }
+};
+
+/**
+ * Clears the modified state on the specified path.
+ *
+ * #### Example:
+ *
+ *     doc.foo = 'bar';
+ *     doc.unmarkModified('foo');
+ *     doc.save(); // changes to foo will not be persisted
+ *
+ * @param {String} path the path to unmark modified
+ * @api public
+ */
+
+Document.prototype.unmarkModified = function(path) {
+  this.$__.activePaths.init(path);
+  if (this.$__.pathsToScopes != null) {
+    delete this.$__.pathsToScopes[path];
+  }
+};
+
+/**
+ * Don't run validation on this path or persist changes to this path.
+ *
+ * #### Example:
+ *
+ *     doc.foo = null;
+ *     doc.$ignore('foo');
+ *     doc.save(); // changes to foo will not be persisted and validators won't be run
+ *
+ * @memberOf Document
+ * @instance
+ * @method $ignore
+ * @param {String} path the path to ignore
+ * @api public
+ */
+
+Document.prototype.$ignore = function(path) {
+  this.$__.activePaths.ignore(path);
+};
+
+/**
+ * Returns the list of paths that have been directly modified. A direct
+ * modified path is a path that you explicitly set, whether via `doc.foo = 'bar'`,
+ * `Object.assign(doc, { foo: 'bar' })`, or `doc.set('foo', 'bar')`.
+ *
+ * A path `a` may be in `modifiedPaths()` but not in `directModifiedPaths()`
+ * because a child of `a` was directly modified.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ foo: String, nested: { bar: String } });
+ *     const Model = mongoose.model('Test', schema);
+ *     await Model.create({ foo: 'original', nested: { bar: 'original' } });
+ *
+ *     const doc = await Model.findOne();
+ *     doc.nested.bar = 'modified';
+ *     doc.directModifiedPaths(); // ['nested.bar']
+ *     doc.modifiedPaths(); // ['nested', 'nested.bar']
+ *
+ * @return {String[]}
+ * @api public
+ */
+
+Document.prototype.directModifiedPaths = function() {
+  return Object.keys(this.$__.activePaths.getStatePaths('modify'));
+};
+
+/**
+ * Returns true if the given path is nullish or only contains empty objects.
+ * Useful for determining whether this subdoc will get stripped out by the
+ * [minimize option](https://mongoosejs.com/docs/guide.html#minimize).
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ nested: { foo: String } });
+ *     const Model = mongoose.model('Test', schema);
+ *     const doc = new Model({});
+ *     doc.$isEmpty('nested'); // true
+ *     doc.nested.$isEmpty(); // true
+ *
+ *     doc.nested.foo = 'bar';
+ *     doc.$isEmpty('nested'); // false
+ *     doc.nested.$isEmpty(); // false
+ *
+ * @param {String} [path]
+ * @memberOf Document
+ * @instance
+ * @api public
+ * @method $isEmpty
+ * @return {Boolean}
+ */
+
+Document.prototype.$isEmpty = function(path) {
+  const isEmptyOptions = {
+    minimize: true,
+    virtuals: false,
+    getters: false,
+    transform: false
+  };
+
+  if (arguments.length !== 0) {
+    const v = this.$get(path);
+    if (v == null) {
+      return true;
+    }
+    if (typeof v !== 'object') {
+      return false;
+    }
+    if (utils.isPOJO(v)) {
+      return _isEmpty(v);
+    }
+    return Object.keys(v.toObject(isEmptyOptions)).length === 0;
+  }
+
+  return Object.keys(this.toObject(isEmptyOptions)).length === 0;
+};
+
+/*!
+ * ignore
+ */
+
+function _isEmpty(v) {
+  if (v == null) {
+    return true;
+  }
+  if (typeof v !== 'object' || Array.isArray(v)) {
+    return false;
+  }
+  for (const key of Object.keys(v)) {
+    if (!_isEmpty(v[key])) {
+      return false;
+    }
+  }
+  return true;
+}
+
+/**
+ * Returns the list of paths that have been modified.
+ *
+ * @param {Object} [options]
+ * @param {Boolean} [options.includeChildren=false] if true, returns children of modified paths as well. For example, if false, the list of modified paths for `doc.colors = { primary: 'blue' };` will **not** contain `colors.primary`. If true, `modifiedPaths()` will return an array that contains `colors.primary`.
+ * @return {String[]}
+ * @api public
+ */
+
+Document.prototype.modifiedPaths = function(options) {
+  options = options || {};
+
+  const directModifiedPaths = Object.keys(this.$__.activePaths.getStatePaths('modify'));
+  const result = new Set();
+
+  let i = 0;
+  let j = 0;
+  const len = directModifiedPaths.length;
+
+  for (i = 0; i < len; ++i) {
+    const path = directModifiedPaths[i];
+    const parts = parentPaths(path);
+    const pLen = parts.length;
+
+    for (j = 0; j < pLen; ++j) {
+      result.add(parts[j]);
+    }
+
+    if (!options.includeChildren) {
+      continue;
+    }
+
+    let ii = 0;
+    let cur = this.$get(path);
+    if (typeof cur === 'object' && cur !== null) {
+      if (cur._doc) {
+        cur = cur._doc;
+      }
+      const len = cur.length;
+      if (Array.isArray(cur)) {
+        for (ii = 0; ii < len; ++ii) {
+          const subPath = path + '.' + ii;
+          if (!result.has(subPath)) {
+            result.add(subPath);
+            if (cur[ii] != null && cur[ii].$__) {
+              const modified = cur[ii].modifiedPaths();
+              let iii = 0;
+              const iiiLen = modified.length;
+              for (iii = 0; iii < iiiLen; ++iii) {
+                result.add(subPath + '.' + modified[iii]);
+              }
+            }
+          }
+        }
+      } else {
+        const keys = Object.keys(cur);
+        let ii = 0;
+        const len = keys.length;
+        for (ii = 0; ii < len; ++ii) {
+          result.add(path + '.' + keys[ii]);
+        }
+      }
+    }
+  }
+  return Array.from(result);
+};
+
+Document.prototype[documentModifiedPaths] = Document.prototype.modifiedPaths;
+
+/**
+ * Returns true if any of the given paths is modified, else false. If no arguments, returns `true` if any path
+ * in this document is modified.
+ *
+ * If `path` is given, checks if a path or any full path containing `path` as part of its path chain has been modified.
+ *
+ * #### Example:
+ *
+ *     doc.set('documents.0.title', 'changed');
+ *     doc.isModified()                      // true
+ *     doc.isModified('documents')           // true
+ *     doc.isModified('documents.0.title')   // true
+ *     doc.isModified('documents otherProp') // true
+ *     doc.isDirectModified('documents')     // false
+ *
+ * @param {String} [path] optional
+ * @param {Object} [options]
+ * @param {Boolean} [options.ignoreAtomics=false] If true, doesn't return true if path is underneath an array that was modified with atomic operations like `push()`
+ * @return {Boolean}
+ * @api public
+ */
+
+Document.prototype.isModified = function(paths, options, modifiedPaths) {
+  if (paths) {
+    const ignoreAtomics = options && options.ignoreAtomics;
+    const directModifiedPathsObj = this.$__.activePaths.states.modify;
+    if (directModifiedPathsObj == null) {
+      return false;
+    }
+
+    if (typeof paths === 'string') {
+      paths = paths.indexOf(' ') === -1 ? [paths] : paths.split(' ');
+    }
+
+    for (const path of paths) {
+      if (directModifiedPathsObj[path] != null) {
+        return true;
+      }
+    }
+
+    const modified = modifiedPaths || this[documentModifiedPaths]();
+    const isModifiedChild = paths.some(function(path) {
+      return !!~modified.indexOf(path);
+    });
+
+    let directModifiedPaths = Object.keys(directModifiedPathsObj);
+    if (ignoreAtomics) {
+      directModifiedPaths = directModifiedPaths.filter(path => {
+        const value = this.$__getValue(path);
+        if (value != null && value[arrayAtomicsSymbol] != null && value[arrayAtomicsSymbol].$set === undefined) {
+          return false;
+        }
+        return true;
+      });
+    }
+    return isModifiedChild || paths.some(function(path) {
+      return directModifiedPaths.some(function(mod) {
+        return mod === path || path.startsWith(mod + '.');
+      });
+    });
+  }
+
+  return this.$__.activePaths.some('modify');
+};
+
+/**
+ * Alias of [`.isModified`](https://mongoosejs.com/docs/api/document.html#Document.prototype.isModified())
+ *
+ * @method $isModified
+ * @memberOf Document
+ * @api public
+ */
+
+Document.prototype.$isModified = Document.prototype.isModified;
+
+Document.prototype[documentIsModified] = Document.prototype.isModified;
+
+/**
+ * Checks if a path is set to its default.
+ *
+ * #### Example:
+ *
+ *     MyModel = mongoose.model('test', { name: { type: String, default: 'Val '} });
+ *     const m = new MyModel();
+ *     m.$isDefault('name'); // true
+ *
+ * @memberOf Document
+ * @instance
+ * @method $isDefault
+ * @param {String} [path]
+ * @return {Boolean}
+ * @api public
+ */
+
+Document.prototype.$isDefault = function(path) {
+  if (path == null) {
+    return this.$__.activePaths.some('default');
+  }
+
+  if (typeof path === 'string' && path.indexOf(' ') === -1) {
+    return this.$__.activePaths.getStatePaths('default').hasOwnProperty(path);
+  }
+
+  let paths = path;
+  if (!Array.isArray(paths)) {
+    paths = paths.split(' ');
+  }
+
+  return paths.some(path => this.$__.activePaths.getStatePaths('default').hasOwnProperty(path));
+};
+
+/**
+ * Getter/setter, determines whether the document was deleted. The `Model.prototype.deleteOne()` method sets `$isDeleted` if the delete operation succeeded.
+ *
+ * #### Example:
+ *
+ *     const product = await product.deleteOne();
+ *     product.$isDeleted(); // true
+ *     product.deleteOne(); // no-op, doesn't send anything to the db
+ *
+ *     product.$isDeleted(false);
+ *     product.$isDeleted(); // false
+ *     product.deleteOne(); // will execute a remove against the db
+ *
+ *
+ * @param {Boolean} [val] optional, overrides whether mongoose thinks the doc is deleted
+ * @return {Boolean|Document} whether mongoose thinks this doc is deleted.
+ * @method $isDeleted
+ * @memberOf Document
+ * @instance
+ * @api public
+ */
+
+Document.prototype.$isDeleted = function(val) {
+  if (arguments.length === 0) {
+    return !!this.$__.isDeleted;
+  }
+
+  this.$__.isDeleted = !!val;
+  return this;
+};
+
+/**
+ * Returns true if `path` was directly set and modified, else false.
+ *
+ * #### Example:
+ *
+ *     doc.set('documents.0.title', 'changed');
+ *     doc.isDirectModified('documents.0.title') // true
+ *     doc.isDirectModified('documents') // false
+ *
+ * @param {String|String[]} [path]
+ * @return {Boolean}
+ * @api public
+ */
+
+Document.prototype.isDirectModified = function(path) {
+  if (path == null) {
+    return this.$__.activePaths.some('modify');
+  }
+
+  if (typeof path === 'string' && path.indexOf(' ') === -1) {
+    const res = this.$__.activePaths.getStatePaths('modify').hasOwnProperty(path);
+    if (res || path.indexOf('.') === -1) {
+      return res;
+    }
+
+    const pieces = path.split('.');
+    for (let i = 0; i < pieces.length - 1; ++i) {
+      const subpath = pieces.slice(0, i + 1).join('.');
+      const subdoc = this.$get(subpath);
+      if (subdoc != null && subdoc.$__ != null && subdoc.isDirectModified(pieces.slice(i + 1).join('.'))) {
+        return true;
+      }
+    }
+
+    return false;
+  }
+
+  let paths = path;
+  if (typeof paths === 'string') {
+    paths = paths.split(' ');
+  }
+
+  return paths.some(path => this.isDirectModified(path));
+};
+
+/**
+ * Checks if `path` is in the `init` state, that is, it was set by `Document#init()` and not modified since.
+ *
+ * @param {String} [path]
+ * @return {Boolean}
+ * @api public
+ */
+
+Document.prototype.isInit = function(path) {
+  if (path == null) {
+    return this.$__.activePaths.some('init');
+  }
+
+  if (typeof path === 'string' && path.indexOf(' ') === -1) {
+    return this.$__.activePaths.getStatePaths('init').hasOwnProperty(path);
+  }
+
+  let paths = path;
+  if (!Array.isArray(paths)) {
+    paths = paths.split(' ');
+  }
+
+  return paths.some(path => this.$__.activePaths.getStatePaths('init').hasOwnProperty(path));
+};
+
+/**
+ * Checks if `path` was selected in the source query which initialized this document.
+ *
+ * #### Example:
+ *
+ *     const doc = await Thing.findOne().select('name');
+ *     doc.isSelected('name') // true
+ *     doc.isSelected('age')  // false
+ *
+ * @param {String|String[]} path
+ * @return {Boolean}
+ * @api public
+ */
+
+Document.prototype.isSelected = function isSelected(path) {
+  if (this.$__.selected == null) {
+    return true;
+  }
+  if (!path) {
+    return false;
+  }
+  if (path === '_id') {
+    return this.$__.selected._id !== 0;
+  }
+
+  if (path.indexOf(' ') !== -1) {
+    path = path.split(' ');
+  }
+  if (Array.isArray(path)) {
+    return path.some(p => this.$__isSelected(p));
+  }
+
+  const paths = Object.keys(this.$__.selected);
+  let inclusive = null;
+
+  if (paths.length === 1 && paths[0] === '_id') {
+    // only _id was selected.
+    return this.$__.selected._id === 0;
+  }
+
+  for (const cur of paths) {
+    if (cur === '_id') {
+      continue;
+    }
+    if (!isDefiningProjection(this.$__.selected[cur])) {
+      continue;
+    }
+    inclusive = !!this.$__.selected[cur];
+    break;
+  }
+
+  if (inclusive === null) {
+    return true;
+  }
+
+  if (path in this.$__.selected) {
+    return inclusive;
+  }
+
+  const pathDot = path + '.';
+
+  for (const cur of paths) {
+    if (cur === '_id') {
+      continue;
+    }
+
+    if (cur.startsWith(pathDot)) {
+      return inclusive || cur !== pathDot;
+    }
+
+    if (pathDot.startsWith(cur + '.')) {
+      return inclusive;
+    }
+  }
+  return !inclusive;
+};
+
+Document.prototype.$__isSelected = Document.prototype.isSelected;
+
+/**
+ * Checks if `path` was explicitly selected. If no projection, always returns
+ * true.
+ *
+ * #### Example:
+ *
+ *     Thing.findOne().select('nested.name').exec(function (err, doc) {
+ *        doc.isDirectSelected('nested.name') // true
+ *        doc.isDirectSelected('nested.otherName') // false
+ *        doc.isDirectSelected('nested')  // false
+ *     })
+ *
+ * @param {String} path
+ * @return {Boolean}
+ * @api public
+ */
+
+Document.prototype.isDirectSelected = function isDirectSelected(path) {
+  if (this.$__.selected == null) {
+    return true;
+  }
+
+  if (path === '_id') {
+    return this.$__.selected._id !== 0;
+  }
+
+  if (path.indexOf(' ') !== -1) {
+    path = path.split(' ');
+  }
+  if (Array.isArray(path)) {
+    return path.some(p => this.isDirectSelected(p));
+  }
+
+  const paths = Object.keys(this.$__.selected);
+  let inclusive = null;
+
+  if (paths.length === 1 && paths[0] === '_id') {
+    // only _id was selected.
+    return this.$__.selected._id === 0;
+  }
+
+  for (const cur of paths) {
+    if (cur === '_id') {
+      continue;
+    }
+    if (!isDefiningProjection(this.$__.selected[cur])) {
+      continue;
+    }
+    inclusive = !!this.$__.selected[cur];
+    break;
+  }
+
+  if (inclusive === null) {
+    return true;
+  }
+
+  if (this.$__.selected.hasOwnProperty(path)) {
+    return inclusive;
+  }
+
+  return !inclusive;
+};
+
+/**
+ * Executes registered validation rules for this document.
+ *
+ * #### Note:
+ *
+ * This method is called `pre` save and if a validation rule is violated, [save](https://mongoosejs.com/docs/api/model.html#Model.prototype.save()) is aborted and the error is thrown.
+ *
+ * #### Example:
+ *
+ *     await doc.validate({ validateModifiedOnly: false, pathsToSkip: ['name', 'email']});
+ *
+ * @param {Array|String} [pathsToValidate] list of paths to validate. If set, Mongoose will validate only the modified paths that are in the given list.
+ * @param {Object} [options] internal options
+ * @param {Boolean} [options.validateModifiedOnly=false] if `true` mongoose validates only modified paths.
+ * @param {Array|string} [options.pathsToSkip] list of paths to skip. If set, Mongoose will validate every modified path that is not in this list.
+ * @return {Promise} Returns a Promise.
+ * @api public
+ */
+
+Document.prototype.validate = async function validate(pathsToValidate, options) {
+  if (typeof pathsToValidate === 'function' || typeof options === 'function' || typeof arguments[2] === 'function') {
+    throw new MongooseError('Document.prototype.validate() no longer accepts a callback');
+  }
+  let parallelValidate;
+  this.$op = 'validate';
+
+  if (arguments.length === 1) {
+    if (typeof arguments[0] === 'object' && !Array.isArray(arguments[0])) {
+      options = arguments[0];
+      pathsToValidate = null;
+    }
+  }
+  if (options && typeof options.pathsToSkip === 'string') {
+    const isOnePathOnly = options.pathsToSkip.indexOf(' ') === -1;
+    options.pathsToSkip = isOnePathOnly ? [options.pathsToSkip] : options.pathsToSkip.split(' ');
+  }
+  const _skipParallelValidateCheck = options && options._skipParallelValidateCheck;
+
+  if (this.$isSubdocument != null) {
+    // Skip parallel validate check for subdocuments
+  } else if (this.$__.validating && !_skipParallelValidateCheck) {
+    parallelValidate = new ParallelValidateError(this, {
+      parentStack: options && options.parentStack,
+      conflictStack: this.$__.validating.stack
+    });
+  } else if (!_skipParallelValidateCheck) {
+    this.$__.validating = new ParallelValidateError(this, { parentStack: options && options.parentStack });
+  }
+
+  if (parallelValidate != null) {
+    throw parallelValidate;
+  }
+
+  return new Promise((resolve, reject) => {
+    this.$__validate(pathsToValidate, options, (error) => {
+      this.$op = null;
+      this.$__.validating = null;
+      if (error != null) {
+        return reject(error);
+      }
+      resolve();
+    });
+  });
+};
+
+/**
+ * Alias of [`.validate`](https://mongoosejs.com/docs/api/document.html#Document.prototype.validate())
+ *
+ * @method $validate
+ * @memberOf Document
+ * @api public
+ */
+
+Document.prototype.$validate = Document.prototype.validate;
+
+/*!
+ * ignore
+ */
+
+function _evaluateRequiredFunctions(doc) {
+  const requiredFields = Object.keys(doc.$__.activePaths.getStatePaths('require'));
+  let i = 0;
+  const len = requiredFields.length;
+  for (i = 0; i < len; ++i) {
+    const path = requiredFields[i];
+
+    const p = doc.$__schema.path(path);
+
+    if (p != null && typeof p.originalRequiredValue === 'function') {
+      doc.$__.cachedRequired = doc.$__.cachedRequired || {};
+      try {
+        doc.$__.cachedRequired[path] = p.originalRequiredValue.call(doc, doc);
+      } catch (err) {
+        doc.invalidate(path, err);
+      }
+    }
+  }
+}
+
+/*!
+ * ignore
+ */
+
+function _getPathsToValidate(doc, pathsToValidate, pathsToSkip, isNestedValidate) {
+  const doValidateOptions = {};
+
+  _evaluateRequiredFunctions(doc);
+  // only validate required fields when necessary
+  let paths = new Set(Object.keys(doc.$__.activePaths.getStatePaths('require')).filter(function(path) {
+    if (!doc.$__isSelected(path) && !doc.$isModified(path)) {
+      return false;
+    }
+    if (doc.$__.cachedRequired != null && path in doc.$__.cachedRequired) {
+      return doc.$__.cachedRequired[path];
+    }
+    return true;
+  }));
+
+  Object.keys(doc.$__.activePaths.getStatePaths('init')).forEach(addToPaths);
+  Object.keys(doc.$__.activePaths.getStatePaths('modify')).forEach(addToPaths);
+  Object.keys(doc.$__.activePaths.getStatePaths('default')).forEach(addToPaths);
+  function addToPaths(p) { paths.add(p); }
+
+  if (!isNestedValidate) {
+    // If we're validating a subdocument, all this logic will run anyway on the top-level document, so skip for subdocuments
+    const subdocs = doc.$getAllSubdocs({ useCache: true });
+    const modifiedPaths = doc.modifiedPaths();
+    for (const subdoc of subdocs) {
+      if (subdoc.$basePath) {
+        const fullPathToSubdoc = subdoc.$isSingleNested ? subdoc.$__pathRelativeToParent() : subdoc.$__fullPathWithIndexes();
+
+        // Remove child paths for now, because we'll be validating the whole
+        // subdoc.
+        // The following is a faster take on looping through every path in `paths`
+        // and checking if the path starts with `fullPathToSubdoc` re: gh-13191
+        for (const modifiedPath of subdoc.modifiedPaths()) {
+          paths.delete(fullPathToSubdoc + '.' + modifiedPath);
+        }
+
+        if (doc.$isModified(fullPathToSubdoc, null, modifiedPaths) &&
+              // Avoid using isDirectModified() here because that does additional checks on whether the parent path
+              // is direct modified, which can cause performance issues re: gh-14897
+              !doc.$__.activePaths.getStatePaths('modify').hasOwnProperty(fullPathToSubdoc) &&
+              !doc.$isDefault(fullPathToSubdoc)) {
+          paths.add(fullPathToSubdoc);
+
+          if (doc.$__.pathsToScopes == null) {
+            doc.$__.pathsToScopes = {};
+          }
+          doc.$__.pathsToScopes[fullPathToSubdoc] = subdoc.$isDocumentArrayElement ?
+            subdoc.__parentArray :
+            subdoc.$parent();
+
+          doValidateOptions[fullPathToSubdoc] = { skipSchemaValidators: true };
+          if (subdoc.$isDocumentArrayElement && subdoc.__index != null) {
+            doValidateOptions[fullPathToSubdoc].index = subdoc.__index;
+          }
+        }
+      }
+    }
+  }
+
+  for (const path of paths) {
+    const _pathType = doc.$__schema.path(path);
+    if (!_pathType) {
+      continue;
+    }
+
+    if (_pathType.$isMongooseDocumentArray) {
+      for (const p of paths) {
+        if (p == null || p.startsWith(_pathType.path + '.')) {
+          paths.delete(p);
+        }
+      }
+    }
+
+    // Optimization: if primitive path with no validators, or array of primitives
+    // with no validators, skip validating this path entirely.
+    if (!_pathType.caster && _pathType.validators.length === 0 && !_pathType.$parentSchemaDocArray) {
+      paths.delete(path);
+    } else if (_pathType.$isMongooseArray &&
+      !_pathType.$isMongooseDocumentArray && // Skip document arrays...
+      !_pathType.$embeddedSchemaType.$isMongooseArray && // and arrays of arrays
+      _pathType.validators.length === 0 && // and arrays with top-level validators
+      _pathType.$embeddedSchemaType.validators.length === 0) {
+      paths.delete(path);
+    }
+  }
+
+
+  if (Array.isArray(pathsToValidate)) {
+    paths = _handlePathsToValidate(paths, pathsToValidate);
+  } else if (Array.isArray(pathsToSkip)) {
+    paths = _handlePathsToSkip(paths, pathsToSkip);
+  }
+
+  // from here on we're not removing items from paths
+
+  // gh-661: if a whole array is modified, make sure to run validation on all
+  // the children as well
+  _addArrayPathsToValidate(doc, paths);
+
+  const flattenOptions = { skipArrays: true };
+  for (const pathToCheck of paths) {
+    if (doc.$__schema.nested[pathToCheck]) {
+      let _v = doc.$__getValue(pathToCheck);
+      if (isMongooseObject(_v)) {
+        _v = _v.toObject({ transform: false });
+      }
+      const flat = flatten(_v, pathToCheck, flattenOptions, doc.$__schema);
+      // Single nested paths (paths embedded under single nested subdocs) will
+      // be validated on their own when we call `validate()` on the subdoc itself.
+      // Re: gh-8468
+      Object.keys(flat).filter(path => !doc.$__schema.singleNestedPaths.hasOwnProperty(path)).forEach(addToPaths);
+    }
+  }
+
+  for (const path of paths) {
+    const _pathType = doc.$__schema.path(path);
+
+    if (!_pathType) {
+      continue;
+    }
+
+    // If underneath a document array, may need to re-validate the parent
+    // array re: gh-6818. Do this _after_ adding subpaths, because
+    // we don't want to add every array subpath.
+    if (_pathType.$parentSchemaDocArray && typeof _pathType.$parentSchemaDocArray.path === 'string') {
+      paths.add(_pathType.$parentSchemaDocArray.path);
+    }
+
+    if (!_pathType.$isSchemaMap) {
+      continue;
+    }
+
+    const val = doc.$__getValue(path);
+    if (val == null) {
+      continue;
+    }
+    for (const key of val.keys()) {
+      paths.add(path + '.' + key);
+    }
+  }
+
+  paths = Array.from(paths);
+  return [paths, doValidateOptions];
+}
+
+function _addArrayPathsToValidate(doc, paths) {
+  for (const path of paths) {
+    const _pathType = doc.$__schema.path(path);
+    if (!_pathType) {
+      continue;
+    }
+
+    if (!_pathType.$isMongooseArray ||
+        // To avoid potential performance issues, skip doc arrays whose children
+        // are not required. `getPositionalPathType()` may be slow, so avoid
+        // it unless we have a case of #6364
+        (!Array.isArray(_pathType) &&
+          _pathType.$isMongooseDocumentArray &&
+          !(_pathType && _pathType.schemaOptions && _pathType.schemaOptions.required))) {
+      continue;
+    }
+
+    // gh-11380: optimization. If the array isn't a document array and there's no validators
+    // on the array type, there's no need to run validation on the individual array elements.
+    if (_pathType.$isMongooseArray &&
+        !_pathType.$isMongooseDocumentArray && // Skip document arrays...
+        !_pathType.$embeddedSchemaType.$isMongooseArray && // and arrays of arrays
+        _pathType.$embeddedSchemaType.validators.length === 0) {
+      continue;
+    }
+
+    const val = doc.$__getValue(path);
+    _pushNestedArrayPaths(val, paths, path);
+  }
+}
+
+function _pushNestedArrayPaths(val, paths, path) {
+  if (val != null) {
+    const numElements = val.length;
+    for (let j = 0; j < numElements; ++j) {
+      if (Array.isArray(val[j])) {
+        _pushNestedArrayPaths(val[j], paths, path + '.' + j);
+      } else {
+        paths.add(path + '.' + j);
+      }
+    }
+  }
+}
+
+/*!
+ * ignore
+ */
+
+Document.prototype.$__validate = function(pathsToValidate, options, callback) {
+  if (this.$__.saveOptions && this.$__.saveOptions.pathsToSave && !pathsToValidate) {
+    pathsToValidate = [...this.$__.saveOptions.pathsToSave];
+  } else if (typeof pathsToValidate === 'function') {
+    callback = pathsToValidate;
+    options = null;
+    pathsToValidate = null;
+  } else if (typeof options === 'function') {
+    callback = options;
+    options = null;
+  }
+
+  const hasValidateModifiedOnlyOption = options &&
+      (typeof options === 'object') &&
+      ('validateModifiedOnly' in options);
+
+  const pathsToSkip = (options && options.pathsToSkip) || null;
+
+  let shouldValidateModifiedOnly;
+  if (hasValidateModifiedOnlyOption) {
+    shouldValidateModifiedOnly = !!options.validateModifiedOnly;
+  } else {
+    shouldValidateModifiedOnly = this.$__schema.options.validateModifiedOnly;
+  }
+
+  const validateAllPaths = options && options.validateAllPaths;
+  if (validateAllPaths) {
+    if (pathsToSkip) {
+      throw new TypeError('Cannot set both `validateAllPaths` and `pathsToSkip`');
+    }
+    if (pathsToValidate) {
+      throw new TypeError('Cannot set both `validateAllPaths` and `pathsToValidate`');
+    }
+    if (hasValidateModifiedOnlyOption && shouldValidateModifiedOnly) {
+      throw new TypeError('Cannot set both `validateAllPaths` and `validateModifiedOnly`');
+    }
+  }
+
+  const _this = this;
+  const _complete = () => {
+    let validationError = this.$__.validationError;
+    this.$__.validationError = null;
+    this.$__.validating = null;
+
+    if (shouldValidateModifiedOnly && validationError != null) {
+      // Remove any validation errors that aren't from modified paths
+      const errors = Object.keys(validationError.errors);
+      for (const errPath of errors) {
+        if (!this.$isModified(errPath)) {
+          delete validationError.errors[errPath];
+        }
+      }
+      if (Object.keys(validationError.errors).length === 0) {
+        validationError = void 0;
+      }
+    }
+
+    this.$__.cachedRequired = {};
+    this.$emit('validate', _this);
+    this.constructor.emit('validate', _this);
+
+    if (validationError) {
+      for (const key in validationError.errors) {
+        // Make sure cast errors persist
+        if (!this[documentArrayParent] &&
+            validationError.errors[key] instanceof MongooseError.CastError) {
+          this.invalidate(key, validationError.errors[key]);
+        }
+      }
+
+      return validationError;
+    }
+  };
+
+  // only validate required fields when necessary
+  let paths;
+  let doValidateOptionsByPath;
+  if (validateAllPaths) {
+    paths = new Set(Object.keys(this.$__schema.paths));
+    // gh-661: if a whole array is modified, make sure to run validation on all
+    // the children as well
+    for (const path of paths) {
+      const schemaType = this.$__schema.path(path);
+      if (!schemaType || !schemaType.$isMongooseArray) {
+        continue;
+      }
+      const val = this.$__getValue(path);
+      if (!val) {
+        continue;
+      }
+      _pushNestedArrayPaths(val, paths, path);
+    }
+    paths = [...paths];
+    doValidateOptionsByPath = {};
+  } else {
+    const pathDetails = _getPathsToValidate(this, pathsToValidate, pathsToSkip, options && options._nestedValidate);
+    paths = shouldValidateModifiedOnly ?
+      pathDetails[0].filter((path) => this.$isModified(path)) :
+      pathDetails[0];
+    doValidateOptionsByPath = pathDetails[1];
+  }
+
+  if (typeof pathsToValidate === 'string') {
+    pathsToValidate = pathsToValidate.split(' ');
+  }
+
+  if (paths.length === 0) {
+    return immediate(function() {
+      const error = _complete();
+      if (error) {
+        return _this.$__schema.s.hooks.execPost('validate:error', _this, [_this], { error: error }, function(error) {
+          callback(error);
+        });
+      }
+      callback(null, _this);
+    });
+  }
+
+  const validated = {};
+  let total = 0;
+
+  let pathsToSave = this.$__.saveOptions?.pathsToSave;
+  if (Array.isArray(pathsToSave)) {
+    pathsToSave = new Set(pathsToSave);
+    for (const path of paths) {
+      if (!pathsToSave.has(path)) {
+        continue;
+      }
+      validatePath(path);
+    }
+  } else {
+    for (const path of paths) {
+      validatePath(path);
+    }
+  }
+
+  function validatePath(path) {
+    if (path == null || validated[path]) {
+      return;
+    }
+
+    validated[path] = true;
+    total++;
+
+    immediate(function() {
+      const schemaType = _this.$__schema.path(path);
+
+      if (!schemaType) {
+        return --total || complete();
+      }
+
+      // If user marked as invalid or there was a cast error, don't validate
+      if (!_this.$isValid(path)) {
+        --total || complete();
+        return;
+      }
+
+      // If setting a path under a mixed path, avoid using the mixed path validator (gh-10141)
+      if (schemaType[schemaMixedSymbol] != null && path !== schemaType.path) {
+        return --total || complete();
+      }
+
+      let val = _this.$__getValue(path);
+
+      // If you `populate()` and get back a null value, required validators
+      // shouldn't fail (gh-8018). We should always fall back to the populated
+      // value.
+      let pop;
+      if ((pop = _this.$populated(path))) {
+        val = pop;
+      } else if (val != null && val.$__ != null && val.$__.wasPopulated) {
+        // Array paths, like `somearray.1`, do not show up as populated with `$populated()`,
+        // so in that case pull out the document's id
+        val = val._doc._id;
+      }
+      const scope = _this.$__.pathsToScopes != null && path in _this.$__.pathsToScopes ?
+        _this.$__.pathsToScopes[path] :
+        _this;
+
+      const doValidateOptions = {
+        ...doValidateOptionsByPath[path],
+        path: path,
+        validateAllPaths,
+        _nestedValidate: true
+      };
+
+      schemaType.doValidate(val, function(err) {
+        if (err) {
+          const isSubdoc = schemaType.$isSingleNested ||
+              schemaType.$isArraySubdocument ||
+              schemaType.$isMongooseDocumentArray;
+          if (isSubdoc && err instanceof ValidationError) {
+            return --total || complete();
+          }
+          _this.invalidate(path, err, undefined, true);
+        }
+        --total || complete();
+      }, scope, doValidateOptions);
+    });
+  }
+
+  function complete() {
+    const error = _complete();
+    if (error) {
+      return _this.$__schema.s.hooks.execPost('validate:error', _this, [_this], { error: error }, function(error) {
+        callback(error);
+      });
+    }
+    callback(null, _this);
+  }
+
+};
+
+/*!
+ * ignore
+ */
+
+function _handlePathsToValidate(paths, pathsToValidate) {
+  const _pathsToValidate = new Set(pathsToValidate);
+  const parentPaths = new Map([]);
+  for (const path of pathsToValidate) {
+    if (path.indexOf('.') === -1) {
+      continue;
+    }
+    const pieces = path.split('.');
+    let cur = pieces[0];
+    for (let i = 1; i < pieces.length; ++i) {
+      // Since we skip subpaths under single nested subdocs to
+      // avoid double validation, we need to add back the
+      // single nested subpath if the user asked for it (gh-8626)
+      parentPaths.set(cur, path);
+      cur = cur + '.' + pieces[i];
+    }
+  }
+
+  const ret = new Set();
+  for (const path of paths) {
+    if (_pathsToValidate.has(path)) {
+      ret.add(path);
+    } else if (parentPaths.has(path)) {
+      ret.add(parentPaths.get(path));
+    }
+  }
+  return ret;
+}
+
+/*!
+ * ignore
+ */
+
+function _handlePathsToSkip(paths, pathsToSkip) {
+  pathsToSkip = new Set(pathsToSkip);
+  paths = Array.from(paths).filter(p => !pathsToSkip.has(p));
+  return new Set(paths);
+}
+
+/**
+ * Executes registered validation rules (skipping asynchronous validators) for this document.
+ *
+ * #### Note:
+ *
+ * This method is useful if you need synchronous validation.
+ *
+ * #### Example:
+ *
+ *     const err = doc.validateSync();
+ *     if (err) {
+ *       handleError(err);
+ *     } else {
+ *       // validation passed
+ *     }
+ *
+ * @param {Array|string} [pathsToValidate] only validate the given paths
+ * @param {Object} [options] options for validation
+ * @param {Boolean} [options.validateModifiedOnly=false] If `true`, Mongoose will only validate modified paths, as opposed to modified paths and `required` paths.
+ * @param {Array|string} [options.pathsToSkip] list of paths to skip. If set, Mongoose will validate every modified path that is not in this list.
+ * @return {ValidationError|undefined} ValidationError if there are errors during validation, or undefined if there is no error.
+ * @api public
+ */
+
+Document.prototype.validateSync = function(pathsToValidate, options) {
+  const _this = this;
+
+  if (arguments.length === 1 && typeof arguments[0] === 'object' && !Array.isArray(arguments[0])) {
+    options = arguments[0];
+    pathsToValidate = null;
+  }
+
+  const hasValidateModifiedOnlyOption = options &&
+      (typeof options === 'object') &&
+      ('validateModifiedOnly' in options);
+
+  let shouldValidateModifiedOnly;
+  if (hasValidateModifiedOnlyOption) {
+    shouldValidateModifiedOnly = !!options.validateModifiedOnly;
+  } else {
+    shouldValidateModifiedOnly = this.$__schema.options.validateModifiedOnly;
+  }
+
+  let pathsToSkip = options && options.pathsToSkip;
+
+  const validateAllPaths = options && options.validateAllPaths;
+  if (validateAllPaths) {
+    if (pathsToSkip) {
+      throw new TypeError('Cannot set both `validateAllPaths` and `pathsToSkip`');
+    }
+    if (pathsToValidate) {
+      throw new TypeError('Cannot set both `validateAllPaths` and `pathsToValidate`');
+    }
+  }
+
+  if (typeof pathsToValidate === 'string') {
+    const isOnePathOnly = pathsToValidate.indexOf(' ') === -1;
+    pathsToValidate = isOnePathOnly ? [pathsToValidate] : pathsToValidate.split(' ');
+  } else if (typeof pathsToSkip === 'string' && pathsToSkip.indexOf(' ') !== -1) {
+    pathsToSkip = pathsToSkip.split(' ');
+  }
+
+  // only validate required fields when necessary
+  let paths;
+  let skipSchemaValidators;
+  if (validateAllPaths) {
+    paths = new Set(Object.keys(this.$__schema.paths));
+    // gh-661: if a whole array is modified, make sure to run validation on all
+    // the children as well
+    for (const path of paths) {
+      const schemaType = this.$__schema.path(path);
+      if (!schemaType || !schemaType.$isMongooseArray) {
+        continue;
+      }
+      const val = this.$__getValue(path);
+      if (!val) {
+        continue;
+      }
+      _pushNestedArrayPaths(val, paths, path);
+    }
+    paths = [...paths];
+    skipSchemaValidators = {};
+  } else {
+    const pathDetails = _getPathsToValidate(this, pathsToValidate, pathsToSkip);
+    paths = shouldValidateModifiedOnly ?
+      pathDetails[0].filter((path) => this.$isModified(path)) :
+      pathDetails[0];
+    skipSchemaValidators = pathDetails[1];
+  }
+
+  const validating = {};
+
+  for (let i = 0, len = paths.length; i < len; ++i) {
+    const path = paths[i];
+
+    if (validating[path]) {
+      continue;
+    }
+
+    validating[path] = true;
+
+    const p = _this.$__schema.path(path);
+    if (!p) {
+      continue;
+    }
+    if (!_this.$isValid(path)) {
+      continue;
+    }
+
+    const val = _this.$__getValue(path);
+    const err = p.doValidateSync(val, _this, {
+      skipSchemaValidators: skipSchemaValidators[path],
+      path: path,
+      validateModifiedOnly: shouldValidateModifiedOnly,
+      validateAllPaths
+    });
+    if (err) {
+      const isSubdoc = p.$isSingleNested ||
+        p.$isArraySubdocument ||
+        p.$isMongooseDocumentArray;
+      if (isSubdoc && err instanceof ValidationError) {
+        continue;
+      }
+      _this.invalidate(path, err, undefined, true);
+    }
+  }
+
+  const err = _this.$__.validationError;
+  _this.$__.validationError = undefined;
+  _this.$emit('validate', _this);
+  _this.constructor.emit('validate', _this);
+
+  if (err) {
+    for (const key in err.errors) {
+      // Make sure cast errors persist
+      if (err.errors[key] instanceof MongooseError.CastError) {
+        _this.invalidate(key, err.errors[key]);
+      }
+    }
+  }
+
+  return err;
+};
+
+/**
+ * Marks a path as invalid, causing validation to fail.
+ *
+ * The `errorMsg` argument will become the message of the `ValidationError`.
+ *
+ * The `value` argument (if passed) will be available through the `ValidationError.value` property.
+ *
+ *     doc.invalidate('size', 'must be less than 20', 14);
+ *
+ *     doc.validate(function (err) {
+ *       console.log(err)
+ *       // prints
+ *       { message: 'Validation failed',
+ *         name: 'ValidationError',
+ *         errors:
+ *          { size:
+ *             { message: 'must be less than 20',
+ *               name: 'ValidatorError',
+ *               path: 'size',
+ *               type: 'user defined',
+ *               value: 14 } } }
+ *     })
+ *
+ * @param {String} path the field to invalidate. For array elements, use the `array.i.field` syntax, where `i` is the 0-based index in the array.
+ * @param {String|Error} err the error which states the reason `path` was invalid
+ * @param {Object|String|Number|any} val optional invalid value
+ * @param {String} [kind] optional `kind` property for the error
+ * @return {ValidationError} the current ValidationError, with all currently invalidated paths
+ * @api public
+ */
+
+Document.prototype.invalidate = function(path, err, val, kind) {
+  if (!this.$__.validationError) {
+    this.$__.validationError = new ValidationError(this);
+  }
+
+  if (this.$__.validationError.errors[path]) {
+    return;
+  }
+
+  if (!err || typeof err === 'string') {
+    err = new ValidatorError({
+      path: path,
+      message: err,
+      type: kind || 'user defined',
+      value: val
+    });
+  }
+
+  if (this.$__.validationError === err) {
+    return this.$__.validationError;
+  }
+
+  this.$__.validationError.addError(path, err);
+  return this.$__.validationError;
+};
+
+/**
+ * Marks a path as valid, removing existing validation errors.
+ *
+ * @param {String} path the field to mark as valid
+ * @api public
+ * @memberOf Document
+ * @instance
+ * @method $markValid
+ */
+
+Document.prototype.$markValid = function(path) {
+  if (!this.$__.validationError || !this.$__.validationError.errors[path]) {
+    return;
+  }
+
+  delete this.$__.validationError.errors[path];
+  if (Object.keys(this.$__.validationError.errors).length === 0) {
+    this.$__.validationError = null;
+  }
+};
+
+/*!
+ * ignore
+ */
+
+function _markValidSubpaths(doc, path) {
+  if (!doc.$__.validationError) {
+    return;
+  }
+
+  const keys = Object.keys(doc.$__.validationError.errors);
+  for (const key of keys) {
+    if (key.startsWith(path + '.')) {
+      delete doc.$__.validationError.errors[key];
+    }
+  }
+  if (Object.keys(doc.$__.validationError.errors).length === 0) {
+    doc.$__.validationError = null;
+  }
+}
+
+/*!
+ * ignore
+ */
+
+function _checkImmutableSubpaths(subdoc, schematype, priorVal) {
+  const schema = schematype.schema;
+  if (schema == null) {
+    return;
+  }
+
+  for (const key of Object.keys(schema.paths)) {
+    const path = schema.paths[key];
+    if (path.$immutableSetter == null) {
+      continue;
+    }
+    const oldVal = priorVal == null ? void 0 : priorVal.$__getValue(key);
+    // Calling immutableSetter with `oldVal` even though it expects `newVal`
+    // is intentional. That's because `$immutableSetter` compares its param
+    // to the current value.
+    path.$immutableSetter.call(subdoc, oldVal);
+  }
+}
+
+/**
+ * Saves this document by inserting a new document into the database if [document.isNew](https://mongoosejs.com/docs/api/document.html#Document.prototype.isNew()) is `true`,
+ * or sends an [updateOne](https://mongoosejs.com/docs/api/document.html#Document.prototype.updateOne()) operation **only** with the modifications to the database, it does not replace the whole document in the latter case.
+ *
+ * #### Example:
+ *
+ *     product.sold = Date.now();
+ *     product = await product.save();
+ *
+ * If save is successful, the returned promise will fulfill with the document
+ * saved.
+ *
+ * #### Example:
+ *
+ *     const newProduct = await product.save();
+ *     newProduct === product; // true
+ *
+ * @param {Object} [options] options optional options
+ * @param {Session} [options.session=null] the [session](https://www.mongodb.com/docs/manual/reference/server-sessions/) associated with this save operation. If not specified, defaults to the [document's associated session](https://mongoosejs.com/docs/api/document.html#Document.prototype.$session()).
+ * @param {Object} [options.safe] (DEPRECATED) overrides [schema's safe option](https://mongoosejs.com/docs/guide.html#safe). Use the `w` option instead.
+ * @param {Boolean} [options.validateBeforeSave] set to false to save without validating.
+ * @param {Boolean} [options.validateModifiedOnly=false] If `true`, Mongoose will only validate modified paths, as opposed to modified paths and `required` paths.
+ * @param {Number|String} [options.w] set the [write concern](https://www.mongodb.com/docs/manual/reference/write-concern/#w-option). Overrides the [schema-level `writeConcern` option](https://mongoosejs.com/docs/guide.html#writeConcern)
+ * @param {Boolean} [options.j] set to true for MongoDB to wait until this `save()` has been [journaled before resolving the returned promise](https://www.mongodb.com/docs/manual/reference/write-concern/#j-option). Overrides the [schema-level `writeConcern` option](https://mongoosejs.com/docs/guide.html#writeConcern)
+ * @param {Number} [options.wtimeout] sets a [timeout for the write concern](https://www.mongodb.com/docs/manual/reference/write-concern/#wtimeout). Overrides the [schema-level `writeConcern` option](https://mongoosejs.com/docs/guide.html#writeConcern).
+ * @param {Boolean} [options.checkKeys=true] the MongoDB driver prevents you from saving keys that start with '$' or contain '.' by default. Set this option to `false` to skip that check. See [restrictions on field names](https://www.mongodb.com/docs/manual/reference/limits/#Restrictions-on-Field-Names)
+ * @param {Boolean} [options.timestamps=true] if `false` and [timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this `save()`.
+ * @method save
+ * @memberOf Document
+ * @instance
+ * @throws {DocumentNotFoundError} if this [save updates an existing document](https://mongoosejs.com/docs/api/document.html#Document.prototype.isNew()) but the document doesn't exist in the database. For example, you will get this error if the document is [deleted between when you retrieved the document and when you saved it](documents.html#updating).
+ * @return {Promise}
+ * @api public
+ * @see middleware https://mongoosejs.com/docs/middleware.html
+ */
+
+/**
+ * Checks if a path is invalid
+ *
+ * @param {String|String[]} [path] the field to check. If unset will always return "false"
+ * @method $isValid
+ * @memberOf Document
+ * @instance
+ * @api private
+ */
+
+Document.prototype.$isValid = function(path) {
+  if (this.$__.validationError == null || Object.keys(this.$__.validationError.errors).length === 0) {
+    return true;
+  }
+  if (path == null) {
+    return false;
+  }
+
+  if (path.indexOf(' ') !== -1) {
+    path = path.split(' ');
+  }
+  if (Array.isArray(path)) {
+    return path.some(p => this.$__.validationError.errors[p] == null);
+  }
+
+  return this.$__.validationError.errors[path] == null;
+};
+
+/**
+ * Resets the internal modified state of this document.
+ *
+ * @api private
+ * @return {Document} this
+ * @method $__reset
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.$__reset = function reset() {
+  let _this = this;
+
+  // Skip for subdocuments
+  const subdocs = !this.$isSubdocument ? this.$getAllSubdocs({ useCache: true }) : null;
+  if (subdocs && subdocs.length > 0) {
+    for (const subdoc of subdocs) {
+      subdoc.$__reset();
+    }
+  }
+
+  // clear atomics
+  this.$__dirty().forEach(function(dirt) {
+    const type = dirt.value;
+
+    if (type && type[arrayAtomicsSymbol]) {
+      type[arrayAtomicsBackupSymbol] = type[arrayAtomicsSymbol];
+      type[arrayAtomicsSymbol] = {};
+    }
+  });
+
+  this.$__.backup = {};
+  this.$__.backup.activePaths = {
+    modify: Object.assign({}, this.$__.activePaths.getStatePaths('modify')),
+    default: Object.assign({}, this.$__.activePaths.getStatePaths('default'))
+  };
+  this.$__.backup.validationError = this.$__.validationError;
+  this.$__.backup.errors = this.$errors;
+
+  // Clear 'dirty' cache
+  this.$__.activePaths.clear('modify');
+  this.$__.activePaths.clear('default');
+  this.$__.validationError = undefined;
+  this.$errors = undefined;
+  _this = this;
+  this.$__schema.requiredPaths().forEach(function(path) {
+    _this.$__.activePaths.require(path);
+  });
+
+  return this;
+};
+
+/*!
+ * ignore
+ */
+
+Document.prototype.$__undoReset = function $__undoReset() {
+  if (this.$__.backup == null || this.$__.backup.activePaths == null) {
+    return;
+  }
+
+  this.$__.activePaths.states.modify = this.$__.backup.activePaths.modify;
+  this.$__.activePaths.states.default = this.$__.backup.activePaths.default;
+
+  this.$__.validationError = this.$__.backup.validationError;
+  this.$errors = this.$__.backup.errors;
+
+  for (const dirt of this.$__dirty()) {
+    const type = dirt.value;
+
+    if (type && type[arrayAtomicsSymbol] && type[arrayAtomicsBackupSymbol]) {
+      type[arrayAtomicsSymbol] = type[arrayAtomicsBackupSymbol];
+    }
+  }
+
+  for (const subdoc of this.$getAllSubdocs()) {
+    subdoc.$__undoReset();
+  }
+};
+
+/**
+ * Returns this documents dirty paths / vals.
+ *
+ * @return {Array}
+ * @api private
+ * @method $__dirty
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.$__dirty = function() {
+  const _this = this;
+  let all = this.$__.activePaths.map('modify', function(path) {
+    return {
+      path: path,
+      value: _this.$__getValue(path),
+      schema: _this.$__path(path)
+    };
+  });
+
+  // gh-2558: if we had to set a default and the value is not undefined,
+  // we have to save as well
+  all = all.concat(this.$__.activePaths.map('default', function(path) {
+    if (path === '_id' || _this.$__getValue(path) == null) {
+      return;
+    }
+    return {
+      path: path,
+      value: _this.$__getValue(path),
+      schema: _this.$__path(path)
+    };
+  }));
+
+  const allPaths = new Map(all.filter((el) => el != null).map((el) => [el.path, el.value]));
+  // Ignore "foo.a" if "foo" is dirty already.
+  const minimal = [];
+
+  all.forEach(function(item) {
+    if (!item) {
+      return;
+    }
+
+    let top = null;
+
+    const array = parentPaths(item.path);
+    for (let i = 0; i < array.length - 1; i++) {
+      if (allPaths.has(array[i])) {
+        top = allPaths.get(array[i]);
+        break;
+      }
+    }
+    if (top == null) {
+      minimal.push(item);
+    } else if (top != null &&
+        top[arrayAtomicsSymbol] != null &&
+        top.hasAtomics()) {
+      // special case for top level MongooseArrays
+      // the `top` array itself and a sub path of `top` are being set.
+      // the only way to honor all of both modifications is through a $set
+      // of entire array.
+      top[arrayAtomicsSymbol] = {};
+      top[arrayAtomicsSymbol].$set = top;
+    }
+  });
+  return minimal;
+};
+
+/**
+ * Assigns/compiles `schema` into this documents prototype.
+ *
+ * @param {Schema} schema
+ * @api private
+ * @method $__setSchema
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.$__setSchema = function(schema) {
+  compile(schema.tree, this, undefined, schema.options);
+
+  // Apply default getters if virtual doesn't have any (gh-6262)
+  for (const key of Object.keys(schema.virtuals)) {
+    schema.virtuals[key]._applyDefaultGetters();
+  }
+  if (schema.path('schema') == null) {
+    this.schema = schema;
+  }
+  this.$__schema = schema;
+  this[documentSchemaSymbol] = schema;
+};
+
+
+/**
+ * Get active path that were changed and are arrays
+ *
+ * @return {Array}
+ * @api private
+ * @method $__getArrayPathsToValidate
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.$__getArrayPathsToValidate = function() {
+  DocumentArray || (DocumentArray = require('./types/documentArray'));
+
+  // validate all document arrays.
+  return this.$__.activePaths
+    .map('init', 'modify', function(i) {
+      return this.$__getValue(i);
+    }.bind(this))
+    .filter(function(val) {
+      return val && Array.isArray(val) && utils.isMongooseDocumentArray(val) && val.length;
+    }).reduce(function(seed, array) {
+      return seed.concat(array);
+    }, [])
+    .filter(function(doc) {
+      return doc;
+    });
+};
+
+
+/**
+ * Get all subdocs (by bfs)
+ *
+ * @param {Object} [options] options. Currently for internal use.
+ * @return {Array}
+ * @api public
+ * @method $getAllSubdocs
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.$getAllSubdocs = function(options) {
+  if (options?.useCache && this.$__.saveOptions?.__subdocs) {
+    return this.$__.saveOptions.__subdocs;
+  }
+
+  DocumentArray || (DocumentArray = require('./types/documentArray'));
+  Embedded = Embedded || require('./types/arraySubdocument');
+
+  const subDocs = [];
+  function getSubdocs(doc) {
+    const newSubdocs = [];
+
+    for (const { model } of doc.$__schema.childSchemas) {
+      // Avoid using `childSchemas.path` to avoid compatibility versions with pre-8.8 versions of Mongoose
+      const val = doc.$__getValue(model.path);
+      if (val == null) {
+        continue;
+      }
+      if (val.$__) {
+        newSubdocs.push(val);
+      }
+      if (Array.isArray(val)) {
+        for (const el of val) {
+          if (el != null && el.$__) {
+            newSubdocs.push(el);
+          }
+        }
+      }
+      if (val instanceof Map) {
+        for (const el of val.values()) {
+          if (el != null && el.$__) {
+            newSubdocs.push(el);
+          }
+        }
+      }
+    }
+
+    for (const subdoc of newSubdocs) {
+      getSubdocs(subdoc);
+    }
+    subDocs.push(...newSubdocs);
+  }
+
+  getSubdocs(this);
+
+  if (this.$__.saveOptions) {
+    this.$__.saveOptions.__subdocs = subDocs;
+  }
+
+  return subDocs;
+};
+
+/*!
+ * Runs queued functions
+ */
+
+function applyQueue(doc) {
+  const q = doc.$__schema && doc.$__schema.callQueue;
+  if (!q.length) {
+    return;
+  }
+
+  for (const pair of q) {
+    if (pair[0] !== 'pre' && pair[0] !== 'post' && pair[0] !== 'on') {
+      doc[pair[0]].apply(doc, pair[1]);
+    }
+  }
+}
+
+/*!
+ * ignore
+ */
+
+Document.prototype.$__handleReject = function handleReject(err) {
+  // emit on the Model if listening
+  if (this.$listeners('error').length) {
+    this.$emit('error', err);
+  } else if (this.constructor.listeners && this.constructor.listeners('error').length) {
+    this.constructor.emit('error', err);
+  }
+};
+
+/**
+ * Internal common logic for toObject() and toJSON()
+ *
+ * @return {Object}
+ * @api private
+ * @method $toObject
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.$toObject = function(options, json) {
+  const defaultOptions = this.$__schema._defaultToObjectOptions(json);
+
+  const hasOnlyPrimitiveValues = this.$__hasOnlyPrimitiveValues();
+
+  // If options do not exist or is not an object, set it to empty object
+  options = utils.isPOJO(options) ? { ...options } : {};
+  options._calledWithOptions = options._calledWithOptions || { ...options };
+
+  let _minimize;
+  if (options._calledWithOptions.minimize != null) {
+    _minimize = options.minimize;
+  } else if (defaultOptions != null && defaultOptions.minimize != null) {
+    _minimize = defaultOptions.minimize;
+  } else {
+    _minimize = this.$__schema.options.minimize;
+  }
+
+  options.minimize = _minimize;
+  if (!hasOnlyPrimitiveValues) {
+    options._seen = options._seen || new Map();
+  }
+
+  const depopulate = options._calledWithOptions.depopulate
+    ?? defaultOptions?.depopulate
+    ?? options.depopulate
+    ?? false;
+  // _isNested will only be true if this is not the top level document, we
+  // should never depopulate the top-level document
+  if (depopulate && options._isNested && this.$__.wasPopulated) {
+    return clone(this.$__.wasPopulated.value || this._doc._id, options);
+  }
+  if (depopulate) {
+    options.depopulate = true;
+  }
+
+  // merge default options with input options.
+  if (defaultOptions != null) {
+    for (const key of Object.keys(defaultOptions)) {
+      if (options[key] == null) {
+        options[key] = defaultOptions[key];
+      }
+    }
+  }
+  options._isNested = true;
+  options.json = json;
+  options.minimize = _minimize;
+
+  const parentOptions = options._parentOptions;
+  // Parent options should only bubble down for subdocuments, not populated docs
+  options._parentOptions = this.$isSubdocument ? options : null;
+
+  // remember the root transform function
+  // to save it from being overwritten by sub-transform functions
+  // const originalTransform = options.transform;
+
+  let ret;
+  if (hasOnlyPrimitiveValues && !options.flattenObjectIds) {
+    // Fast path: if we don't have any nested objects or arrays, we only need a
+    // shallow clone.
+    ret = this.$__toObjectShallow();
+  } else {
+    ret = clone(this._doc, options) || {};
+  }
+
+  const getters = options._calledWithOptions.getters
+    ?? options.getters
+    ?? defaultOptions.getters
+    ?? false;
+
+  if (getters) {
+    applyGetters(this, ret);
+
+    if (options.minimize) {
+      ret = minimize(ret) || {};
+    }
+  }
+
+  const virtuals = options._calledWithOptions.virtuals
+    ?? defaultOptions.virtuals
+    ?? parentOptions?.virtuals
+    ?? undefined;
+
+  if (virtuals || (getters && virtuals !== false)) {
+    applyVirtuals(this, ret, options, options);
+  }
+
+  if (options.versionKey === false && this.$__schema.options.versionKey) {
+    delete ret[this.$__schema.options.versionKey];
+  }
+
+  const transform = options._calledWithOptions.transform ?? true;
+  let transformFunction = undefined;
+  if (transform === true) {
+    transformFunction = defaultOptions.transform;
+  } else if (typeof transform === 'function') {
+    transformFunction = transform;
+  }
+
+  // In the case where a subdocument has its own transform function, we need to
+  // check and see if the parent has a transform (options.transform) and if the
+  // child schema has a transform (this.schema.options.toObject) In this case,
+  // we need to adjust options.transform to be the child schema's transform and
+  // not the parent schema's
+  if (transform) {
+    applySchemaTypeTransforms(this, ret);
+  }
+
+  if (options.useProjection) {
+    omitDeselectedFields(this, ret);
+  }
+
+  if (typeof transformFunction === 'function') {
+    const xformed = transformFunction(this, ret, options);
+    if (typeof xformed !== 'undefined') {
+      ret = xformed;
+    }
+  }
+
+  return ret;
+};
+
+/*!
+ * Internal shallow clone alternative to `$toObject()`: much faster, no options processing
+ */
+
+Document.prototype.$__toObjectShallow = function $__toObjectShallow() {
+  const ret = {};
+  if (this._doc != null) {
+    for (const key of Object.keys(this._doc)) {
+      const value = this._doc[key];
+      if (value instanceof Date) {
+        ret[key] = new Date(value);
+      } else if (value !== undefined) {
+        ret[key] = value;
+      }
+    }
+  }
+
+  return ret;
+};
+
+/**
+ * Converts this document into a plain-old JavaScript object ([POJO](https://masteringjs.io/tutorials/fundamentals/pojo)).
+ *
+ * Buffers are converted to instances of [mongodb.Binary](https://mongodb.github.io/node-mongodb-native/4.9/classes/Binary.html) for proper storage.
+ *
+ * #### Getters/Virtuals
+ *
+ * Example of only applying path getters
+ *
+ *     doc.toObject({ getters: true, virtuals: false })
+ *
+ * Example of only applying virtual getters
+ *
+ *     doc.toObject({ virtuals: true })
+ *
+ * Example of applying both path and virtual getters
+ *
+ *     doc.toObject({ getters: true })
+ *
+ * To apply these options to every document of your schema by default, set your [schemas](https://mongoosejs.com/docs/api/schema.html#Schema()) `toObject` option to the same argument.
+ *
+ *     schema.set('toObject', { virtuals: true })
+ *
+ * #### Transform:
+ *
+ * We may need to perform a transformation of the resulting object based on some criteria, say to remove some sensitive information or return a custom object. In this case we set the optional `transform` function.
+ *
+ * Transform functions receive three arguments
+ *
+ *     function (doc, ret, options) {}
+ *
+ * - `doc` The mongoose document which is being converted
+ * - `ret` The plain object representation which has been converted
+ * - `options` The options in use (either schema options or the options passed inline)
+ *
+ * #### Example:
+ *
+ *     // specify the transform schema option
+ *     if (!schema.options.toObject) schema.options.toObject = {};
+ *     schema.options.toObject.transform = function (doc, ret, options) {
+ *       // remove the _id of every document before returning the result
+ *       delete ret._id;
+ *       return ret;
+ *     }
+ *
+ *     // without the transformation in the schema
+ *     doc.toObject(); // { _id: 'anId', name: 'Wreck-it Ralph' }
+ *
+ *     // with the transformation
+ *     doc.toObject(); // { name: 'Wreck-it Ralph' }
+ *
+ * With transformations we can do a lot more than remove properties. We can even return completely new customized objects:
+ *
+ *     if (!schema.options.toObject) schema.options.toObject = {};
+ *     schema.options.toObject.transform = function (doc, ret, options) {
+ *       return { movie: ret.name }
+ *     }
+ *
+ *     // without the transformation in the schema
+ *     doc.toObject(); // { _id: 'anId', name: 'Wreck-it Ralph' }
+ *
+ *     // with the transformation
+ *     doc.toObject(); // { movie: 'Wreck-it Ralph' }
+ *
+ * _Note: if a transform function returns `undefined`, the return value will be ignored._
+ *
+ * Transformations may also be applied inline, overridding any transform set in the schema options.
+ * Any transform function specified in `toObject` options also propagates to any subdocuments.
+ *
+ *     function deleteId(doc, ret, options) {
+ *       delete ret._id;
+ *       return ret;
+ *     }
+ *
+ *     const schema = mongoose.Schema({ name: String, docArr: [{ name: String }] });
+ *     const TestModel = mongoose.model('Test', schema);
+ *
+ *     const doc = new TestModel({ name: 'test', docArr: [{ name: 'test' }] });
+ *
+ *     // pass the transform as an inline option. Deletes `_id` property
+ *     // from both the top-level document and the subdocument.
+ *     const obj = doc.toObject({ transform: deleteId });
+ *     obj._id; // undefined
+ *     obj.docArr[0]._id; // undefined
+ *
+ * If you want to skip transformations, use `transform: false`:
+ *
+ *     schema.options.toObject.hide = '_id';
+ *     schema.options.toObject.transform = function (doc, ret, options) {
+ *       if (options.hide) {
+ *         options.hide.split(' ').forEach(function (prop) {
+ *           delete ret[prop];
+ *         });
+ *       }
+ *       return ret;
+ *     }
+ *
+ *     const doc = new Doc({ _id: 'anId', secret: 47, name: 'Wreck-it Ralph' });
+ *     doc.toObject();                                        // { secret: 47, name: 'Wreck-it Ralph' }
+ *     doc.toObject({ hide: 'secret _id', transform: false });// { _id: 'anId', secret: 47, name: 'Wreck-it Ralph' }
+ *     doc.toObject({ hide: 'secret _id', transform: true }); // { name: 'Wreck-it Ralph' }
+ *
+ * If you pass a transform in `toObject()` options, Mongoose will apply the transform
+ * to [subdocuments](https://mongoosejs.com/docs/subdocs.html) in addition to the top-level document.
+ * Similarly, `transform: false` skips transforms for all subdocuments.
+ * Note that this behavior is different for transforms defined in the schema:
+ * if you define a transform in `schema.options.toObject.transform`, that transform
+ * will **not** apply to subdocuments.
+ *
+ *     const memberSchema = new Schema({ name: String, email: String });
+ *     const groupSchema = new Schema({ members: [memberSchema], name: String, email });
+ *     const Group = mongoose.model('Group', groupSchema);
+ *
+ *     const doc = new Group({
+ *       name: 'Engineering',
+ *       email: 'dev@mongoosejs.io',
+ *       members: [{ name: 'Val', email: 'val@mongoosejs.io' }]
+ *     });
+ *
+ *     // Removes `email` from both top-level document **and** array elements
+ *     // { name: 'Engineering', members: [{ name: 'Val' }] }
+ *     doc.toObject({ transform: (doc, ret) => { delete ret.email; return ret; } });
+ *
+ * Transforms, like all of these options, are also available for `toJSON`. See [this guide to `JSON.stringify()`](https://thecodebarbarian.com/the-80-20-guide-to-json-stringify-in-javascript.html) to learn why `toJSON()` and `toObject()` are separate functions.
+ *
+ * See [schema options](https://mongoosejs.com/docs/guide.html#toObject) for some more details.
+ *
+ * _During save, no custom options are applied to the document before being sent to the database._
+ *
+ * @param {Object} [options]
+ * @param {Boolean} [options.getters=false] if true, apply all getters, including virtuals
+ * @param {Boolean|Object} [options.virtuals=false] if true, apply virtuals, including aliases. Use `{ getters: true, virtuals: false }` to just apply getters, not virtuals. An object of the form `{ pathsToSkip: ['someVirtual'] }` may also be used to omit specific virtuals.
+ * @param {Boolean} [options.aliases=true] if `options.virtuals = true`, you can set `options.aliases = false` to skip applying aliases. This option is a no-op if `options.virtuals = false`.
+ * @param {Boolean} [options.minimize=true] if true, omit any empty objects from the output
+ * @param {Function|null} [options.transform=null] if set, mongoose will call this function to allow you to transform the returned object
+ * @param {Boolean} [options.depopulate=false] if true, replace any conventionally populated paths with the original id in the output. Has no affect on virtual populated paths.
+ * @param {Boolean} [options.versionKey=true] if false, exclude the version key (`__v` by default) from the output
+ * @param {Boolean} [options.flattenMaps=false] if true, convert Maps to POJOs. Useful if you want to `JSON.stringify()` the result of `toObject()`.
+ * @param {Boolean} [options.flattenObjectIds=false] if true, convert any ObjectIds in the result to 24 character hex strings.
+ * @param {Boolean} [options.useProjection=false] - If true, omits fields that are excluded in this document's projection. Unless you specified a projection, this will omit any field that has `select: false` in the schema.
+ * @return {Object} document as a plain old JavaScript object (POJO). This object may contain ObjectIds, Maps, Dates, mongodb.Binary, Buffers, and other non-POJO values.
+ * @see mongodb.Binary https://mongodb.github.io/node-mongodb-native/4.9/classes/Binary.html
+ * @api public
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.toObject = function(options) {
+  return this.$toObject(options);
+};
+
+/*!
+ * Applies virtuals properties to `json`.
+ */
+
+function applyVirtuals(self, json, options, toObjectOptions) {
+  const schema = self.$__schema;
+  const virtuals = schema.virtuals;
+  const paths = Object.keys(virtuals);
+  let i = paths.length;
+  const numPaths = i;
+  let path;
+  let assignPath;
+  let cur = self._doc;
+  let v;
+  const aliases = typeof (toObjectOptions && toObjectOptions.aliases) === 'boolean'
+    ? toObjectOptions.aliases
+    : true;
+
+  options = options || {};
+  let virtualsToApply = null;
+  if (Array.isArray(options.virtuals)) {
+    virtualsToApply = new Set(options.virtuals);
+  } else if (options.virtuals && options.virtuals.pathsToSkip) {
+    virtualsToApply = new Set(paths);
+    for (let i = 0; i < options.virtuals.pathsToSkip.length; i++) {
+      if (virtualsToApply.has(options.virtuals.pathsToSkip[i])) {
+        virtualsToApply.delete(options.virtuals.pathsToSkip[i]);
+      }
+    }
+  }
+
+  if (!cur) {
+    return json;
+  }
+
+  for (i = 0; i < numPaths; ++i) {
+    path = paths[i];
+
+    if (virtualsToApply != null && !virtualsToApply.has(path)) {
+      continue;
+    }
+
+    // Allow skipping aliases with `toObject({ virtuals: true, aliases: false })`
+    if (!aliases && schema.aliases.hasOwnProperty(path)) {
+      continue;
+    }
+
+    // We may be applying virtuals to a nested object, for example if calling
+    // `doc.nestedProp.toJSON()`. If so, the path we assign to, `assignPath`,
+    // will be a trailing substring of the `path`.
+    assignPath = path;
+    if (options.path != null) {
+      if (!path.startsWith(options.path + '.')) {
+        continue;
+      }
+      assignPath = path.substring(options.path.length + 1);
+    }
+    if (assignPath.indexOf('.') === -1 && assignPath === path) {
+      v = virtuals[path].applyGetters(void 0, self);
+      if (v === void 0) {
+        continue;
+      }
+      v = clone(v, options);
+      json[assignPath] = v;
+      continue;
+    }
+    const parts = assignPath.split('.');
+    v = clone(self.get(path), options);
+    if (v === void 0) {
+      continue;
+    }
+    const plen = parts.length;
+    cur = json;
+    for (let j = 0; j < plen - 1; ++j) {
+      cur[parts[j]] = cur[parts[j]] || {};
+      cur = cur[parts[j]];
+    }
+    cur[parts[plen - 1]] = v;
+  }
+
+  return json;
+}
+
+
+/**
+ * Applies virtuals properties to `json`.
+ *
+ * @param {Document} self
+ * @param {Object} json
+ * @return {Object} `json`
+ * @api private
+ */
+
+function applyGetters(self, json) {
+  const schema = self.$__schema;
+  const paths = Object.keys(schema.paths);
+  let i = paths.length;
+  let path;
+  let cur = self._doc;
+  let v;
+
+  if (!cur) {
+    return json;
+  }
+
+  while (i--) {
+    path = paths[i];
+
+    const parts = path.split('.');
+
+    const plen = parts.length;
+    const last = plen - 1;
+    let branch = json;
+    let part;
+    cur = self._doc;
+
+    if (!self.$__isSelected(path)) {
+      continue;
+    }
+
+    for (let ii = 0; ii < plen; ++ii) {
+      part = parts[ii];
+      v = cur[part];
+      // If we've reached a non-object part of the branch, continuing would
+      // cause "Cannot create property 'foo' on string 'bar'" error.
+      // Necessary for mongoose-intl plugin re: gh-14446
+      if (branch != null && typeof branch !== 'object') {
+        break;
+      } else if (ii === last) {
+        branch[part] = schema.paths[path].applyGetters(
+          branch[part],
+          self
+        );
+        if (Array.isArray(branch[part]) && schema.paths[path].$embeddedSchemaType) {
+          for (let i = 0; i < branch[part].length; ++i) {
+            branch[part][i] = schema.paths[path].$embeddedSchemaType.applyGetters(
+              branch[part][i],
+              self
+            );
+          }
+        }
+      } else if (v == null) {
+        if (part in cur) {
+          branch[part] = v;
+        }
+        break;
+      } else {
+        branch = branch[part] || (branch[part] = {});
+      }
+      cur = v;
+    }
+  }
+
+  return json;
+}
+
+/**
+ * Applies schema type transforms to `json`.
+ *
+ * @param {Document} self
+ * @param {Object} json
+ * @return {Object} `json`
+ * @api private
+ */
+
+function applySchemaTypeTransforms(self, json) {
+  const schema = self.$__schema;
+  const paths = Object.keys(schema.paths || {});
+  const cur = self._doc;
+
+  if (!cur) {
+    return json;
+  }
+
+  for (const path of paths) {
+    const schematype = schema.paths[path];
+    if (typeof schematype.options.transform === 'function') {
+      const val = self.$get(path);
+      if (val === undefined) {
+        continue;
+      }
+      const transformedValue = schematype.options.transform.call(self, val);
+      throwErrorIfPromise(path, transformedValue);
+      utils.setValue(path, transformedValue, json);
+    } else if (schematype.$embeddedSchemaType != null &&
+        typeof schematype.$embeddedSchemaType.options.transform === 'function') {
+      const val = self.$get(path);
+      if (val === undefined) {
+        continue;
+      }
+      const vals = [].concat(val);
+      const transform = schematype.$embeddedSchemaType.options.transform;
+      for (let i = 0; i < vals.length; ++i) {
+        const transformedValue = transform.call(self, vals[i]);
+        vals[i] = transformedValue;
+        throwErrorIfPromise(path, transformedValue);
+      }
+
+      json[path] = vals;
+    }
+  }
+
+  return json;
+}
+
+function throwErrorIfPromise(path, transformedValue) {
+  if (isPromise(transformedValue)) {
+    throw new Error('`transform` function must be synchronous, but the transform on path `' + path + '` returned a promise.');
+  }
+}
+
+/*!
+ * ignore
+ */
+
+function omitDeselectedFields(self, json) {
+  const schema = self.$__schema;
+  const paths = Object.keys(schema.paths || {});
+  const cur = self._doc;
+
+  if (!cur) {
+    return json;
+  }
+
+  let selected = self.$__.selected;
+  if (selected === void 0) {
+    selected = {};
+    queryhelpers.applyPaths(selected, schema);
+  }
+  if (selected == null || Object.keys(selected).length === 0) {
+    return json;
+  }
+
+  for (const path of paths) {
+    if (selected[path] != null && !selected[path]) {
+      delete json[path];
+    }
+  }
+
+  return json;
+}
+
+/**
+ * The return value of this method is used in calls to [`JSON.stringify(doc)`](https://thecodebarbarian.com/the-80-20-guide-to-json-stringify-in-javascript#the-tojson-function).
+ *
+ * This method accepts the same options as [Document#toObject](https://mongoosejs.com/docs/api/document.html#Document.prototype.toObject()). To apply the options to every document of your schema by default, set your [schemas](https://mongoosejs.com/docs/api/schema.html#Schema()) `toJSON` option to the same argument.
+ *
+ *     schema.set('toJSON', { virtuals: true });
+ *
+ * There is one difference between `toJSON()` and `toObject()` options.
+ * When you call `toJSON()`, the [`flattenMaps` option](https://mongoosejs.com/docs/api/document.html#Document.prototype.toObject()) defaults to `true`, because `JSON.stringify()` doesn't convert maps to objects by default.
+ * When you call `toObject()`, the `flattenMaps` option is `false` by default.
+ *
+ * See [schema options](https://mongoosejs.com/docs/guide.html#toJSON) for more information on setting `toJSON` option defaults.
+ *
+ * @param {Object} options
+ * @param {Boolean} [options.flattenMaps=true] if true, convert Maps to [POJOs](https://masteringjs.io/tutorials/fundamentals/pojo). Useful if you want to `JSON.stringify()` the result.
+ * @param {Boolean} [options.flattenObjectIds=false] if true, convert any ObjectIds in the result to 24 character hex strings.
+ * @return {Object}
+ * @see Document#toObject https://mongoosejs.com/docs/api/document.html#Document.prototype.toObject()
+ * @see JSON.stringify() in JavaScript https://thecodebarbarian.com/the-80-20-guide-to-json-stringify-in-javascript.html
+ * @api public
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.toJSON = function(options) {
+  return this.$toObject(options, true);
+};
+
+/*!
+ * ignore
+ */
+
+Document.prototype.ownerDocument = function() {
+  return this;
+};
+
+
+/**
+ * If this document is a subdocument or populated document, returns the document's
+ * parent. Returns the original document if there is no parent.
+ *
+ * @return {Document}
+ * @api public
+ * @method parent
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.parent = function() {
+  if (this.$isSubdocument || this.$__.wasPopulated) {
+    return this.$__.parent;
+  }
+  return this;
+};
+
+/**
+ * Alias for [`parent()`](https://mongoosejs.com/docs/api/document.html#Document.prototype.parent()). If this document is a subdocument or populated
+ * document, returns the document's parent. Returns `undefined` otherwise.
+ *
+ * @return {Document}
+ * @api public
+ * @method $parent
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.$parent = Document.prototype.parent;
+
+/**
+ * Helper for console.log
+ *
+ * @return {String}
+ * @api public
+ * @method inspect
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.inspect = function(options) {
+  const isPOJO = utils.isPOJO(options);
+  let opts;
+  if (isPOJO) {
+    opts = options;
+    opts.minimize = false;
+  }
+
+  const ret = arguments.length > 0 ? this.toObject(opts) : this.toObject();
+
+  if (ret == null) {
+    // If `toObject()` returns null, `this` is still an object, so if `inspect()`
+    // prints out null this can cause some serious confusion. See gh-7942.
+    return 'MongooseDocument { ' + ret + ' }';
+  }
+
+  return ret;
+};
+
+if (inspect.custom) {
+  // Avoid Node deprecation warning DEP0079
+  Document.prototype[inspect.custom] = Document.prototype.inspect;
+}
+
+/**
+ * Helper for console.log
+ *
+ * @return {String}
+ * @api public
+ * @method toString
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.toString = function() {
+  const ret = this.inspect();
+  if (typeof ret === 'string') {
+    return ret;
+  }
+  return inspect(ret);
+};
+
+/**
+ * Returns true if this document is equal to another document.
+ *
+ * Documents are considered equal when they have matching `_id`s, unless neither
+ * document has an `_id`, in which case this function falls back to using
+ * `deepEqual()`.
+ *
+ * @param {Document} [doc] a document to compare. If falsy, will always return "false".
+ * @return {Boolean}
+ * @api public
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.equals = function(doc) {
+  if (!doc) {
+    return false;
+  }
+
+  const tid = this.$__getValue('_id');
+  const docid = doc.$__ != null ? doc.$__getValue('_id') : doc;
+  if (!tid && !docid) {
+    return deepEqual(this, doc);
+  }
+  return tid && tid.equals
+    ? tid.equals(docid)
+    : tid === docid;
+};
+
+/**
+ * Populates paths on an existing document.
+ *
+ * #### Example:
+ *
+ *     // Given a document, `populate()` lets you pull in referenced docs
+ *     await doc.populate([
+ *       'stories',
+ *       { path: 'fans', sort: { name: -1 } }
+ *     ]);
+ *     doc.populated('stories'); // Array of ObjectIds
+ *     doc.stories[0].title; // 'Casino Royale'
+ *     doc.populated('fans'); // Array of ObjectIds
+ *
+ *     // If the referenced doc has been deleted, `populate()` will
+ *     // remove that entry from the array.
+ *     await Story.delete({ title: 'Casino Royale' });
+ *     await doc.populate('stories'); // Empty array
+ *
+ *     // You can also pass additional query options to `populate()`,
+ *     // like projections:
+ *     await doc.populate('fans', '-email');
+ *     doc.fans[0].email // undefined because of 2nd param `select`
+ *
+ * @param {String|Object|Array} path either the path to populate or an object specifying all parameters, or either an array of those
+ * @param {Object|String} [select] Field selection for the population query
+ * @param {Model} [model] The model you wish to use for population. If not specified, populate will look up the model by the name in the Schema's `ref` field.
+ * @param {Object} [match] Conditions for the population query
+ * @param {Object} [options] Options for the population query (sort, etc)
+ * @param {String} [options.path=null] The path to populate.
+ * @param {string|PopulateOptions} [options.populate=null] Recursively populate paths in the populated documents. See [deep populate docs](https://mongoosejs.com/docs/populate.html#deep-populate).
+ * @param {boolean} [options.retainNullValues=false] by default, Mongoose removes null and undefined values from populated arrays. Use this option to make `populate()` retain `null` and `undefined` array entries.
+ * @param {boolean} [options.getters=false] if true, Mongoose will call any getters defined on the `localField`. By default, Mongoose gets the raw value of `localField`. For example, you would need to set this option to `true` if you wanted to [add a `lowercase` getter to your `localField`](https://mongoosejs.com/docs/schematypes.html#schematype-options).
+ * @param {boolean} [options.clone=false] When you do `BlogPost.find().populate('author')`, blog posts with the same author will share 1 copy of an `author` doc. Enable this option to make Mongoose clone populated docs before assigning them.
+ * @param {Object|Function} [options.match=null] Add an additional filter to the populate query. Can be a filter object containing [MongoDB query syntax](https://www.mongodb.com/docs/manual/tutorial/query-documents/), or a function that returns a filter object.
+ * @param {Function} [options.transform=null] Function that Mongoose will call on every populated document that allows you to transform the populated document.
+ * @param {Object} [options.options=null] Additional options like `limit` and `lean`.
+ * @param {Function} [callback] Callback
+ * @see population https://mongoosejs.com/docs/populate.html
+ * @see Query#select https://mongoosejs.com/docs/api/query.html#Query.prototype.select()
+ * @see Model.populate https://mongoosejs.com/docs/api/model.html#Model.populate()
+ * @memberOf Document
+ * @instance
+ * @return {Promise|null} Returns a Promise if no `callback` is given.
+ * @api public
+ */
+
+Document.prototype.populate = async function populate() {
+  const pop = {};
+  const args = [...arguments];
+  if (typeof args[args.length - 1] === 'function') {
+    throw new MongooseError('Document.prototype.populate() no longer accepts a callback');
+  }
+
+  if (args.length !== 0) {
+    // use hash to remove duplicate paths
+    const res = utils.populate.apply(null, args);
+    for (const populateOptions of res) {
+      pop[populateOptions.path] = populateOptions;
+    }
+  }
+
+  const paths = utils.object.vals(pop);
+  let topLevelModel = this.constructor;
+  if (this.$__isNested) {
+    topLevelModel = this.$__[scopeSymbol].constructor;
+    const nestedPath = this.$__.nestedPath;
+    paths.forEach(function(populateOptions) {
+      populateOptions.path = nestedPath + '.' + populateOptions.path;
+    });
+  }
+
+  // Use `$session()` by default if the document has an associated session
+  // See gh-6754
+  if (this.$session() != null) {
+    const session = this.$session();
+    paths.forEach(path => {
+      if (path.options == null) {
+        path.options = { session: session };
+        return;
+      }
+      if (!('session' in path.options)) {
+        path.options.session = session;
+      }
+    });
+  }
+
+  paths.forEach(p => {
+    p._localModel = topLevelModel;
+  });
+
+  return topLevelModel.populate(this, paths);
+};
+
+/**
+ * Gets all populated documents associated with this document.
+ *
+ * @api public
+ * @return {Document[]} array of populated documents. Empty array if there are no populated documents associated with this document.
+ * @memberOf Document
+ * @method $getPopulatedDocs
+ * @instance
+ */
+
+Document.prototype.$getPopulatedDocs = function $getPopulatedDocs() {
+  let keys = [];
+  if (this.$__.populated != null) {
+    keys = keys.concat(Object.keys(this.$__.populated));
+  }
+  let result = [];
+  for (const key of keys) {
+    const value = this.$get(key);
+    if (Array.isArray(value)) {
+      result = result.concat(value);
+    } else if (value instanceof Document) {
+      result.push(value);
+    }
+  }
+  return result;
+};
+
+/**
+ * Gets _id(s) used during population of the given `path`.
+ *
+ * #### Example:
+ *
+ *     const doc = await Model.findOne().populate('author');
+ *
+ *     console.log(doc.author.name); // Dr.Seuss
+ *     console.log(doc.populated('author')); // '5144cf8050f071d979c118a7'
+ *
+ * If the path was not populated, returns `undefined`.
+ *
+ * @param {String} path
+ * @param {Any} [val]
+ * @param {Object} [options]
+ * @return {Array|ObjectId|Number|Buffer|String|undefined}
+ * @memberOf Document
+ * @instance
+ * @api public
+ */
+
+Document.prototype.populated = function(path, val, options) {
+  // val and options are internal
+  if (val == null || val === true) {
+    if (!this.$__.populated) {
+      return undefined;
+    }
+    if (typeof path !== 'string') {
+      return undefined;
+    }
+
+    // Map paths can be populated with either `path.$*` or just `path`
+    const _path = path.endsWith('.$*') ? path.replace(/\.\$\*$/, '') : path;
+
+    const v = this.$__.populated[_path];
+    if (v) {
+      return val === true ? v : v.value;
+    }
+    return undefined;
+  }
+
+  this.$__.populated || (this.$__.populated = {});
+  this.$__.populated[path] = { value: val, options: options };
+
+  // If this was a nested populate, make sure each populated doc knows
+  // about its populated children (gh-7685)
+  const pieces = path.split('.');
+  for (let i = 0; i < pieces.length - 1; ++i) {
+    const subpath = pieces.slice(0, i + 1).join('.');
+    const subdoc = this.$get(subpath);
+    if (subdoc != null && subdoc.$__ != null && this.$populated(subpath)) {
+      const rest = pieces.slice(i + 1).join('.');
+      subdoc.$populated(rest, val, options);
+      // No need to continue because the above recursion should take care of
+      // marking the rest of the docs as populated
+      break;
+    }
+  }
+
+  return val;
+};
+
+/**
+ * Alias of [`.populated`](https://mongoosejs.com/docs/api/document.html#Document.prototype.populated()).
+ *
+ * @method $populated
+ * @memberOf Document
+ * @api public
+ */
+
+Document.prototype.$populated = Document.prototype.populated;
+
+/**
+ * Throws an error if a given path is not populated
+ *
+ * #### Example:
+ *
+ *     const doc = await Model.findOne().populate('author');
+ *
+ *     doc.$assertPopulated('author'); // does not throw
+ *     doc.$assertPopulated('other path'); // throws an error
+ *
+ *     // Manually populate and assert in one call. The following does
+ *     // `doc.$set({ likes })` before asserting.
+ *     doc.$assertPopulated('likes', { likes });
+ *
+ *
+ * @param {String|String[]} path path or array of paths to check. `$assertPopulated` throws if any of the given paths is not populated.
+ * @param {Object} [values] optional values to `$set()`. Convenient if you want to manually populate a path and assert that the path was populated in 1 call.
+ * @return {Document} this
+ * @memberOf Document
+ * @method $assertPopulated
+ * @instance
+ * @api public
+ */
+
+Document.prototype.$assertPopulated = function $assertPopulated(path, values) {
+  if (Array.isArray(path)) {
+    path.forEach(p => this.$assertPopulated(p, values));
+    return this;
+  }
+
+  if (arguments.length > 1) {
+    this.$set(values);
+  }
+
+  if (!this.$populated(path)) {
+    throw new MongooseError(`Expected path "${path}" to be populated`);
+  }
+
+  return this;
+};
+
+/**
+ * Takes a populated field and returns it to its unpopulated state.
+ *
+ * #### Example:
+ *
+ *     Model.findOne().populate('author').exec(function (err, doc) {
+ *       console.log(doc.author.name); // Dr.Seuss
+ *       console.log(doc.depopulate('author'));
+ *       console.log(doc.author); // '5144cf8050f071d979c118a7'
+ *     })
+ *
+ * If the path was not provided, then all populated fields are returned to their unpopulated state.
+ *
+ * @param {String|String[]} [path] Specific Path to depopulate. If unset, will depopulate all paths on the Document. Or multiple space-delimited paths.
+ * @return {Document} this
+ * @see Document.populate https://mongoosejs.com/docs/api/document.html#Document.prototype.populate()
+ * @api public
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.depopulate = function(path) {
+  if (typeof path === 'string') {
+    path = path.indexOf(' ') === -1 ? [path] : path.split(' ');
+  }
+
+  let populatedIds;
+  const virtualKeys = this.$$populatedVirtuals ? Object.keys(this.$$populatedVirtuals) : [];
+  const populated = this.$__ && this.$__.populated || {};
+
+  if (arguments.length === 0) {
+    // Depopulate all
+    for (const virtualKey of virtualKeys) {
+      delete this.$$populatedVirtuals[virtualKey];
+      delete this._doc[virtualKey];
+      delete populated[virtualKey];
+    }
+
+    const keys = Object.keys(populated);
+
+    for (const key of keys) {
+      populatedIds = this.$populated(key);
+      if (!populatedIds) {
+        continue;
+      }
+      delete populated[key];
+      if (Array.isArray(populatedIds)) {
+        const arr = utils.getValue(key, this._doc);
+        if (arr.isMongooseArray) {
+          const rawArray = arr.__array;
+          for (let i = 0; i < rawArray.length; ++i) {
+            const subdoc = rawArray[i];
+            if (subdoc == null) {
+              continue;
+            }
+            rawArray[i] = subdoc instanceof Document ? subdoc._doc._id : subdoc._id;
+          }
+        } else {
+          utils.setValue(key, populatedIds, this._doc);
+        }
+      } else {
+        utils.setValue(key, populatedIds, this._doc);
+      }
+    }
+    return this;
+  }
+
+  for (const singlePath of path) {
+    populatedIds = this.$populated(singlePath);
+    delete populated[singlePath];
+
+    if (virtualKeys.indexOf(singlePath) !== -1) {
+      delete this.$$populatedVirtuals[singlePath];
+      delete this._doc[singlePath];
+    } else if (populatedIds) {
+      if (Array.isArray(populatedIds)) {
+        const arr = utils.getValue(singlePath, this._doc);
+        if (arr.isMongooseArray) {
+          const rawArray = arr.__array;
+          for (let i = 0; i < rawArray.length; ++i) {
+            const subdoc = rawArray[i];
+            if (subdoc == null) {
+              continue;
+            }
+            rawArray[i] = subdoc instanceof Document ? subdoc._doc._id : subdoc._id;
+          }
+        } else {
+          utils.setValue(singlePath, populatedIds, this._doc);
+        }
+      } else {
+        utils.setValue(singlePath, populatedIds, this._doc);
+      }
+    }
+  }
+  return this;
+};
+
+
+/**
+ * Returns the full path to this document.
+ *
+ * @param {String} [path]
+ * @return {String}
+ * @api private
+ * @method $__fullPath
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.$__fullPath = function(path) {
+  // overridden in SubDocuments
+  return path || '';
+};
+
+/**
+ * Returns the changes that happened to the document
+ * in the format that will be sent to MongoDB.
+ *
+ * #### Example:
+ *
+ *     const userSchema = new Schema({
+ *       name: String,
+ *       age: Number,
+ *       country: String
+ *     });
+ *     const User = mongoose.model('User', userSchema);
+ *     const user = await User.create({
+ *       name: 'Hafez',
+ *       age: 25,
+ *       country: 'Egypt'
+ *     });
+ *
+ *     // returns an empty object, no changes happened yet
+ *     user.getChanges(); // { }
+ *
+ *     user.country = undefined;
+ *     user.age = 26;
+ *
+ *     user.getChanges(); // { $set: { age: 26 }, { $unset: { country: 1 } } }
+ *
+ *     await user.save();
+ *
+ *     user.getChanges(); // { }
+ *
+ * Modifying the object that `getChanges()` returns does not affect the document's
+ * change tracking state. Even if you `delete user.getChanges().$set`, Mongoose
+ * will still send a `$set` to the server.
+ *
+ * @return {Object}
+ * @api public
+ * @method getChanges
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.getChanges = function() {
+  const delta = this.$__delta();
+  const changes = delta ? delta[1] : {};
+  return changes;
+};
+
+/**
+ * Produces a special query document of the modified properties used in updates.
+ *
+ * @api private
+ * @method $__delta
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.$__delta = function $__delta() {
+  const dirty = this.$__dirty();
+  const optimisticConcurrency = this.$__schema.options.optimisticConcurrency;
+  if (optimisticConcurrency) {
+    if (Array.isArray(optimisticConcurrency)) {
+      const optCon = new Set(optimisticConcurrency);
+      const modPaths = this.modifiedPaths();
+      if (modPaths.find(path => optCon.has(path))) {
+        this.$__.version = dirty.length ? VERSION_ALL : VERSION_WHERE;
+      }
+    } else {
+      this.$__.version = dirty.length ? VERSION_ALL : VERSION_WHERE;
+    }
+  }
+
+  if (!dirty.length && VERSION_ALL !== this.$__.version) {
+    return;
+  }
+  const where = {};
+  const delta = {};
+  const len = dirty.length;
+  const divergent = [];
+  let d = 0;
+
+  where._id = this._doc._id;
+  // If `_id` is an object, need to depopulate, but also need to be careful
+  // because `_id` can technically be null (see gh-6406)
+  if ((where && where._id && where._id.$__ || null) != null) {
+    where._id = where._id.toObject({ transform: false, depopulate: true });
+  }
+  for (; d < len; ++d) {
+    const data = dirty[d];
+    let value = data.value;
+    const match = checkDivergentArray(this, data.path, value);
+    if (match) {
+      divergent.push(match);
+      continue;
+    }
+
+    const pop = this.$populated(data.path, true);
+    if (!pop && this.$__.selected) {
+      // If any array was selected using an $elemMatch projection, we alter the path and where clause
+      // NOTE: MongoDB only supports projected $elemMatch on top level array.
+      const pathSplit = data.path.split('.');
+      const top = pathSplit[0];
+      if (this.$__.selected[top] && this.$__.selected[top].$elemMatch) {
+        // If the selected array entry was modified
+        if (pathSplit.length > 1 && pathSplit[1] == 0 && typeof where[top] === 'undefined') {
+          where[top] = this.$__.selected[top];
+          pathSplit[1] = '$';
+          data.path = pathSplit.join('.');
+        }
+        // if the selected array was modified in any other way throw an error
+        else {
+          divergent.push(data.path);
+          continue;
+        }
+      }
+    }
+
+    // If this path is set to default, and either this path or one of
+    // its parents is excluded, don't treat this path as dirty.
+    if (this.$isDefault(data.path) && this.$__.selected) {
+      if (data.path.indexOf('.') === -1 && isPathExcluded(this.$__.selected, data.path)) {
+        continue;
+      }
+
+      const pathsToCheck = parentPaths(data.path);
+      if (pathsToCheck.find(path => isPathExcluded(this.$__.isSelected, path))) {
+        continue;
+      }
+    }
+
+    if (divergent.length) continue;
+    if (value === undefined) {
+      operand(this, where, delta, data, 1, '$unset');
+    } else if (value === null) {
+      operand(this, where, delta, data, null);
+    } else if (utils.isMongooseArray(value) && value.$path() && value[arrayAtomicsSymbol]) {
+      // arrays and other custom types (support plugins etc)
+      handleAtomics(this, where, delta, data, value);
+    } else if (value[MongooseBuffer.pathSymbol] && Buffer.isBuffer(value)) {
+      // MongooseBuffer
+      value = value.toObject();
+      operand(this, where, delta, data, value);
+    } else {
+      if (this.$__.primitiveAtomics && this.$__.primitiveAtomics[data.path] != null) {
+        const val = this.$__.primitiveAtomics[data.path];
+        const op = firstKey(val);
+        operand(this, where, delta, data, val[op], op);
+      } else {
+        value = clone(value, {
+          depopulate: true,
+          transform: false,
+          virtuals: false,
+          getters: false,
+          omitUndefined: true,
+          _isNested: true
+        });
+        operand(this, where, delta, data, value);
+      }
+    }
+  }
+
+  if (divergent.length) {
+    return new DivergentArrayError(divergent);
+  }
+
+  if (this.$__.version) {
+    this.$__version(where, delta);
+  }
+
+  if (Object.keys(delta).length === 0) {
+    return [where, null];
+  }
+
+  return [where, delta];
+};
+
+/**
+ * Determine if array was populated with some form of filter and is now
+ * being updated in a manner which could overwrite data unintentionally.
+ *
+ * @see https://github.com/Automattic/mongoose/issues/1334
+ * @param {Document} doc
+ * @param {String} path
+ * @param {Any} array
+ * @return {String|undefined}
+ * @api private
+ */
+
+function checkDivergentArray(doc, path, array) {
+  // see if we populated this path
+  const pop = doc.$populated(path, true);
+
+  if (!pop && doc.$__.selected) {
+    // If any array was selected using an $elemMatch projection, we deny the update.
+    // NOTE: MongoDB only supports projected $elemMatch on top level array.
+    const top = path.split('.')[0];
+    if (doc.$__.selected[top + '.$']) {
+      return top;
+    }
+  }
+
+  if (!(pop && utils.isMongooseArray(array))) return;
+
+  // If the array was populated using options that prevented all
+  // documents from being returned (match, skip, limit) or they
+  // deselected the _id field, $pop and $set of the array are
+  // not safe operations. If _id was deselected, we do not know
+  // how to remove elements. $pop will pop off the _id from the end
+  // of the array in the db which is not guaranteed to be the
+  // same as the last element we have here. $set of the entire array
+  // would be similarly destructive as we never received all
+  // elements of the array and potentially would overwrite data.
+  const check = pop.options.match ||
+      pop.options.options && utils.object.hasOwnProperty(pop.options.options, 'limit') || // 0 is not permitted
+      pop.options.options && pop.options.options.skip || // 0 is permitted
+      pop.options.select && // deselected _id?
+      (pop.options.select._id === 0 ||
+      /\s?-_id\s?/.test(pop.options.select));
+
+  if (check) {
+    const atomics = array[arrayAtomicsSymbol];
+    if (Object.keys(atomics).length === 0 || atomics.$set || atomics.$pop) {
+      return path;
+    }
+  }
+}
+
+/**
+ * Apply the operation to the delta (update) clause as
+ * well as track versioning for our where clause.
+ *
+ * @param {Document} self
+ * @param {Object} where Unused
+ * @param {Object} delta
+ * @param {Object} data
+ * @param {Mixed} val
+ * @param {String} [op]
+ * @api private
+ */
+
+function operand(self, where, delta, data, val, op) {
+  // delta
+  op || (op = '$set');
+  if (!delta[op]) delta[op] = {};
+  delta[op][data.path] = val;
+  // disabled versioning?
+  if (self.$__schema.options.versionKey === false) return;
+
+  // path excluded from versioning?
+  if (shouldSkipVersioning(self, data.path)) return;
+
+  // already marked for versioning?
+  if (VERSION_ALL === (VERSION_ALL & self.$__.version)) return;
+
+  if (self.$__schema.options.optimisticConcurrency) {
+    return;
+  }
+
+  switch (op) {
+    case '$set':
+    case '$unset':
+    case '$pop':
+    case '$pull':
+    case '$pullAll':
+    case '$push':
+    case '$addToSet':
+    case '$inc':
+      break;
+    default:
+      // nothing to do
+      return;
+  }
+
+  // ensure updates sent with positional notation are
+  // editing the correct array element.
+  // only increment the version if an array position changes.
+  // modifying elements of an array is ok if position does not change.
+  if (op === '$push' || op === '$addToSet' || op === '$pullAll' || op === '$pull') {
+    if (/\.\d+\.|\.\d+$/.test(data.path)) {
+      self.$__.version = VERSION_ALL;
+    } else {
+      self.$__.version = VERSION_INC;
+    }
+  } else if (/^\$p/.test(op)) {
+    // potentially changing array positions
+    self.$__.version = VERSION_ALL;
+  } else if (Array.isArray(val)) {
+    // $set an array
+    self.$__.version = VERSION_ALL;
+  } else if (/\.\d+\.|\.\d+$/.test(data.path)) {
+    // now handling $set, $unset
+    // subpath of array
+    self.$__.version = VERSION_WHERE;
+  }
+}
+
+/**
+ * Compiles an update and where clause for a `val` with _atomics.
+ *
+ * @param {Document} self
+ * @param {Object} where
+ * @param {Object} delta
+ * @param {Object} data
+ * @param {Array} value
+ * @api private
+ */
+
+function handleAtomics(self, where, delta, data, value) {
+  if (delta.$set && delta.$set[data.path]) {
+    // $set has precedence over other atomics
+    return;
+  }
+
+  if (typeof value.$__getAtomics === 'function') {
+    value.$__getAtomics().forEach(function(atomic) {
+      const op = atomic[0];
+      const val = atomic[1];
+      operand(self, where, delta, data, val, op);
+    });
+    return;
+  }
+
+  // legacy support for plugins
+
+  const atomics = value[arrayAtomicsSymbol];
+  const ops = Object.keys(atomics);
+  let i = ops.length;
+  let val;
+  let op;
+
+  if (i === 0) {
+    // $set
+
+    if (utils.isMongooseObject(value)) {
+      value = value.toObject({ depopulate: 1, _isNested: true });
+    } else if (value.valueOf) {
+      value = value.valueOf();
+    }
+
+    return operand(self, where, delta, data, value);
+  }
+
+  function iter(mem) {
+    return utils.isMongooseObject(mem)
+      ? mem.toObject({ depopulate: 1, _isNested: true })
+      : mem;
+  }
+
+  while (i--) {
+    op = ops[i];
+    val = atomics[op];
+
+    if (utils.isMongooseObject(val)) {
+      val = val.toObject({ depopulate: true, transform: false, _isNested: true });
+    } else if (Array.isArray(val)) {
+      val = val.map(iter);
+    } else if (val.valueOf) {
+      val = val.valueOf();
+    }
+
+    if (op === '$addToSet') {
+      val = { $each: val };
+    }
+
+    operand(self, where, delta, data, val, op);
+  }
+}
+
+/**
+ * Determines whether versioning should be skipped for the given path
+ *
+ * @param {Document} self
+ * @param {String} path
+ * @return {Boolean} true if versioning should be skipped for the given path
+ * @api private
+ */
+function shouldSkipVersioning(self, path) {
+  const skipVersioning = self.$__schema.options.skipVersioning;
+  if (!skipVersioning) return false;
+
+  // Remove any array indexes from the path
+  path = path.replace(/\.\d+\./, '.');
+
+  return skipVersioning[path];
+}
+
+/**
+ * Returns a copy of this document with a deep clone of `_doc` and `$__`.
+ *
+ * @return {Document} a copy of this document
+ * @api public
+ * @method $clone
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.$clone = function() {
+  const Model = this.constructor;
+  const clonedDoc = new Model();
+  clonedDoc.$isNew = this.$isNew;
+  if (this._doc) {
+    clonedDoc._doc = clone(this._doc, { retainDocuments: true });
+  }
+  if (this.$__) {
+    const Cache = this.$__.constructor;
+    const clonedCache = new Cache();
+    for (const key of Object.getOwnPropertyNames(this.$__)) {
+      if (key === 'activePaths') {
+        continue;
+      }
+      clonedCache[key] = clone(this.$__[key]);
+    }
+    Object.assign(clonedCache.activePaths, clone({ ...this.$__.activePaths }));
+    clonedDoc.$__ = clonedCache;
+  }
+  return clonedDoc;
+};
+
+/**
+ * Creates a snapshot of this document's internal change tracking state. You can later
+ * reset this document's change tracking state using `$restoreModifiedPathsSnapshot()`.
+ *
+ * #### Example:
+ *
+ *     const doc = await TestModel.findOne();
+ *     const snapshot = doc.$createModifiedPathsSnapshot();
+ *
+ * @return {ModifiedPathsSnapshot} a copy of this document's internal change tracking state
+ * @api public
+ * @method $createModifiedPathsSnapshot
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.$createModifiedPathsSnapshot = function $createModifiedPathsSnapshot() {
+  const subdocSnapshot = new WeakMap();
+  if (!this.$isSubdocument) {
+    const subdocs = this.$getAllSubdocs();
+    for (const child of subdocs) {
+      subdocSnapshot.set(child, child.$__.activePaths.clone());
+    }
+  }
+
+  return new ModifiedPathsSnapshot(
+    subdocSnapshot,
+    this.$__.activePaths.clone(),
+    this.$__.version
+  );
+};
+
+/**
+ * Restore this document's change tracking state to the given snapshot.
+ * Note that `$restoreModifiedPathsSnapshot()` does **not** modify the document's
+ * properties, just resets the change tracking state.
+ *
+ * This method is especially useful when writing [custom transaction wrappers](https://github.com/Automattic/mongoose/issues/14268#issuecomment-2100505554) that need to restore change tracking when aborting a transaction.
+ *
+ * #### Example:
+ *
+ *     const doc = await TestModel.findOne();
+ *     const snapshot = doc.$createModifiedPathsSnapshot();
+ *
+ *     doc.name = 'test';
+ *     doc.$restoreModifiedPathsSnapshot(snapshot);
+ *     doc.$isModified('name'); // false because `name` was not modified when snapshot was taken
+ *     doc.name; // 'test', `$restoreModifiedPathsSnapshot()` does **not** modify the document's data, only change tracking
+ *
+ * @param {ModifiedPathsSnapshot} snapshot of the document's internal change tracking state snapshot to restore
+ * @api public
+ * @method $restoreModifiedPathsSnapshot
+ * @return {Document} this
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.$restoreModifiedPathsSnapshot = function $restoreModifiedPathsSnapshot(snapshot) {
+  this.$__.activePaths = snapshot.activePaths.clone();
+  this.$__.version = snapshot.version;
+  if (!this.$isSubdocument) {
+    const subdocs = this.$getAllSubdocs();
+    for (const child of subdocs) {
+      if (snapshot.subdocSnapshot.has(child)) {
+        child.$__.activePaths = snapshot.subdocSnapshot.get(child);
+      }
+    }
+  }
+
+  return this;
+};
+
+/**
+ * Clear the document's modified paths.
+ *
+ * #### Example:
+ *
+ *     const doc = await TestModel.findOne();
+ *
+ *     doc.name = 'test';
+ *     doc.$isModified('name'); // true
+ *
+ *     doc.$clearModifiedPaths();
+ *     doc.name; // 'test', `$clearModifiedPaths()` does **not** modify the document's data, only change tracking
+ *
+ * @api public
+ * @return {Document} this
+ * @method $clearModifiedPaths
+ * @memberOf Document
+ * @instance
+ */
+
+Document.prototype.$clearModifiedPaths = function $clearModifiedPaths() {
+  this.$__.activePaths.clear('modify');
+  this.$__.activePaths.clear('init');
+  this.$__.version = 0;
+  if (!this.$isSubdocument) {
+    const subdocs = this.$getAllSubdocs();
+    for (const child of subdocs) {
+      child.$clearModifiedPaths();
+    }
+  }
+
+  return this;
+};
+
+/*!
+ * Check if the given document only has primitive values
+ */
+
+Document.prototype.$__hasOnlyPrimitiveValues = function $__hasOnlyPrimitiveValues() {
+  return !this.$__.populated && !this.$__.wasPopulated && (this._doc == null || Object.values(this._doc).every(v => {
+    return v == null
+      || typeof v !== 'object'
+      || (utils.isNativeObject(v) && !Array.isArray(v))
+      || isBsonType(v, 'ObjectId')
+      || isBsonType(v, 'Decimal128');
+  }));
+};
+
+/*!
+ * Module exports.
+ */
+
+Document.VERSION_WHERE = VERSION_WHERE;
+Document.VERSION_INC = VERSION_INC;
+Document.VERSION_ALL = VERSION_ALL;
+Document.ValidationError = ValidationError;
+module.exports = exports = Document;
diff --git a/backend/node_modules/mongoose/lib/documentProvider.js b/backend/node_modules/mongoose/lib/documentProvider.js
new file mode 100644
index 0000000..8944944
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/documentProvider.js
@@ -0,0 +1,30 @@
+'use strict';
+
+/* eslint-env browser */
+
+/*!
+ * Module dependencies.
+ */
+const Document = require('./document.js');
+const BrowserDocument = require('./browserDocument.js');
+
+let isBrowser = false;
+
+/**
+ * Returns the Document constructor for the current context
+ *
+ * @api private
+ */
+module.exports = function documentProvider() {
+  if (isBrowser) {
+    return BrowserDocument;
+  }
+  return Document;
+};
+
+/*!
+ * ignore
+ */
+module.exports.setBrowser = function(flag) {
+  isBrowser = flag;
+};
diff --git a/backend/node_modules/mongoose/lib/driver.js b/backend/node_modules/mongoose/lib/driver.js
new file mode 100644
index 0000000..cf7ca3d
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/driver.js
@@ -0,0 +1,15 @@
+'use strict';
+
+/*!
+ * ignore
+ */
+
+let driver = null;
+
+module.exports.get = function() {
+  return driver;
+};
+
+module.exports.set = function(v) {
+  driver = v;
+};
diff --git a/backend/node_modules/mongoose/lib/drivers/SPEC.md b/backend/node_modules/mongoose/lib/drivers/SPEC.md
new file mode 100644
index 0000000..6464693
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/drivers/SPEC.md
@@ -0,0 +1,4 @@
+
+# Driver Spec
+
+TODO
diff --git a/backend/node_modules/mongoose/lib/drivers/browser/binary.js b/backend/node_modules/mongoose/lib/drivers/browser/binary.js
new file mode 100644
index 0000000..4658f7b
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/drivers/browser/binary.js
@@ -0,0 +1,14 @@
+
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const Binary = require('bson').Binary;
+
+/*!
+ * Module exports.
+ */
+
+module.exports = exports = Binary;
diff --git a/backend/node_modules/mongoose/lib/drivers/browser/decimal128.js b/backend/node_modules/mongoose/lib/drivers/browser/decimal128.js
new file mode 100644
index 0000000..5668182
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/drivers/browser/decimal128.js
@@ -0,0 +1,7 @@
+/*!
+ * ignore
+ */
+
+'use strict';
+
+module.exports = require('bson').Decimal128;
diff --git a/backend/node_modules/mongoose/lib/drivers/browser/index.js b/backend/node_modules/mongoose/lib/drivers/browser/index.js
new file mode 100644
index 0000000..681ba95
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/drivers/browser/index.js
@@ -0,0 +1,12 @@
+/*!
+ * Module exports.
+ */
+
+'use strict';
+
+exports.Collection = function() {
+  throw new Error('Cannot create a collection from browser library');
+};
+exports.Connection = function() {
+  throw new Error('Cannot create a connection from browser library');
+};
diff --git a/backend/node_modules/mongoose/lib/drivers/browser/objectid.js b/backend/node_modules/mongoose/lib/drivers/browser/objectid.js
new file mode 100644
index 0000000..d847afe
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/drivers/browser/objectid.js
@@ -0,0 +1,29 @@
+
+/*!
+ * [node-mongodb-native](https://github.com/mongodb/node-mongodb-native) ObjectId
+ * @constructor NodeMongoDbObjectId
+ * @see ObjectId
+ */
+
+'use strict';
+
+const ObjectId = require('bson').ObjectID;
+
+/**
+ * Getter for convenience with populate, see gh-6115
+ * @api private
+ */
+
+Object.defineProperty(ObjectId.prototype, '_id', {
+  enumerable: false,
+  configurable: true,
+  get: function() {
+    return this;
+  }
+});
+
+/*!
+ * ignore
+ */
+
+module.exports = exports = ObjectId;
diff --git a/backend/node_modules/mongoose/lib/drivers/node-mongodb-native/collection.js b/backend/node_modules/mongoose/lib/drivers/node-mongodb-native/collection.js
new file mode 100644
index 0000000..d2150c6
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/drivers/node-mongodb-native/collection.js
@@ -0,0 +1,467 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const MongooseCollection = require('../../collection');
+const MongooseError = require('../../error/mongooseError');
+const Collection = require('mongodb').Collection;
+const ObjectId = require('../../types/objectid');
+const getConstructorName = require('../../helpers/getConstructorName');
+const internalToObjectOptions = require('../../options').internalToObjectOptions;
+const stream = require('stream');
+const util = require('util');
+
+/**
+ * A [node-mongodb-native](https://github.com/mongodb/node-mongodb-native) collection implementation.
+ *
+ * All methods methods from the [node-mongodb-native](https://github.com/mongodb/node-mongodb-native) driver are copied and wrapped in queue management.
+ *
+ * @inherits Collection https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html
+ * @api private
+ */
+
+function NativeCollection(name, conn, options) {
+  this.collection = null;
+  this.Promise = options.Promise || Promise;
+  this.modelName = options.modelName;
+  delete options.modelName;
+  this._closed = false;
+  MongooseCollection.apply(this, arguments);
+}
+
+/*!
+ * Inherit from abstract Collection.
+ */
+
+Object.setPrototypeOf(NativeCollection.prototype, MongooseCollection.prototype);
+
+/**
+ * Called when the connection opens.
+ *
+ * @api private
+ */
+
+NativeCollection.prototype.onOpen = function() {
+  this.collection = this.conn.db.collection(this.name);
+  MongooseCollection.prototype.onOpen.call(this);
+  return this.collection;
+};
+
+/**
+ * Called when the connection closes
+ *
+ * @api private
+ */
+
+NativeCollection.prototype.onClose = function(force) {
+  MongooseCollection.prototype.onClose.call(this, force);
+};
+
+/**
+ * Helper to get the collection, in case `this.collection` isn't set yet.
+ * May happen if `bufferCommands` is false and created the model when
+ * Mongoose was disconnected.
+ *
+ * @api private
+ */
+
+NativeCollection.prototype._getCollection = function _getCollection() {
+  if (this.collection) {
+    return this.collection;
+  }
+  if (this.conn.db != null) {
+    this.collection = this.conn.db.collection(this.name);
+    return this.collection;
+  }
+  return null;
+};
+
+/*!
+ * ignore
+ */
+
+const syncCollectionMethods = { watch: true, find: true, aggregate: true };
+
+/**
+ * Copy the collection methods and make them subject to queues
+ * @param {Number|String} I
+ * @api private
+ */
+
+function iter(i) {
+  NativeCollection.prototype[i] = function() {
+    const collection = this._getCollection();
+    const args = Array.from(arguments);
+    const _this = this;
+    const globalDebug = _this &&
+      _this.conn &&
+      _this.conn.base &&
+      _this.conn.base.options &&
+      _this.conn.base.options.debug;
+    const connectionDebug = _this &&
+      _this.conn &&
+      _this.conn.options &&
+      _this.conn.options.debug;
+    const debug = connectionDebug == null ? globalDebug : connectionDebug;
+    const lastArg = arguments[arguments.length - 1];
+    const opId = new ObjectId();
+
+    // If user force closed, queueing will hang forever. See #5664
+    if (this.conn.$wasForceClosed) {
+      const error = new MongooseError('Connection was force closed');
+      if (args.length > 0 &&
+        typeof args[args.length - 1] === 'function') {
+        args[args.length - 1](error);
+        return;
+      } else {
+        throw error;
+      }
+    }
+
+    let _args = args;
+    let callback = null;
+    if (this._shouldBufferCommands() && this.buffer) {
+      this.conn.emit('buffer', {
+        _id: opId,
+        modelName: _this.modelName,
+        collectionName: _this.name,
+        method: i,
+        args: args
+      });
+
+      let callback;
+      let _args = args;
+      let promise = null;
+      let timeout = null;
+      if (syncCollectionMethods[i] && typeof lastArg === 'function') {
+        this.addQueue(i, _args);
+        callback = lastArg;
+      } else if (syncCollectionMethods[i]) {
+        promise = new this.Promise((resolve, reject) => {
+          callback = function collectionOperationCallback(err, res) {
+            if (timeout != null) {
+              clearTimeout(timeout);
+            }
+            if (err != null) {
+              return reject(err);
+            }
+            resolve(res);
+          };
+          _args = args.concat([callback]);
+          this.addQueue(i, _args);
+        });
+      } else if (typeof lastArg === 'function') {
+        callback = function collectionOperationCallback() {
+          if (timeout != null) {
+            clearTimeout(timeout);
+          }
+          return lastArg.apply(this, arguments);
+        };
+        _args = args.slice(0, args.length - 1).concat([callback]);
+      } else {
+        promise = new Promise((resolve, reject) => {
+          callback = function collectionOperationCallback(err, res) {
+            if (timeout != null) {
+              clearTimeout(timeout);
+            }
+            if (err != null) {
+              return reject(err);
+            }
+            resolve(res);
+          };
+          _args = args.concat([callback]);
+          this.addQueue(i, _args);
+        });
+      }
+
+      const bufferTimeoutMS = this._getBufferTimeoutMS();
+      timeout = setTimeout(() => {
+        const removed = this.removeQueue(i, _args);
+        if (removed) {
+          const message = 'Operation `' + this.name + '.' + i + '()` buffering timed out after ' +
+            bufferTimeoutMS + 'ms';
+          const err = new MongooseError(message);
+          this.conn.emit('buffer-end', { _id: opId, modelName: _this.modelName, collectionName: _this.name, method: i, error: err });
+          callback(err);
+        }
+      }, bufferTimeoutMS);
+
+      if (!syncCollectionMethods[i] && typeof lastArg === 'function') {
+        this.addQueue(i, _args);
+        return;
+      }
+
+      return promise;
+    } else if (!syncCollectionMethods[i] && typeof lastArg === 'function') {
+      callback = function collectionOperationCallback(err, res) {
+        if (err != null) {
+          _this.conn.emit('operation-end', { _id: opId, modelName: _this.modelName, collectionName: _this.name, method: i, error: err });
+        } else {
+          _this.conn.emit('operation-end', { _id: opId, modelName: _this.modelName, collectionName: _this.name, method: i, result: res });
+        }
+        return lastArg.apply(this, arguments);
+      };
+      _args = args.slice(0, args.length - 1).concat([callback]);
+    }
+
+    if (debug) {
+      if (typeof debug === 'function') {
+        let argsToAdd = null;
+        if (typeof args[args.length - 1] == 'function') {
+          argsToAdd = args.slice(0, args.length - 1);
+        } else {
+          argsToAdd = args;
+        }
+        debug.apply(_this,
+          [_this.name, i].concat(argsToAdd));
+      } else if (debug instanceof stream.Writable) {
+        this.$printToStream(_this.name, i, args, debug);
+      } else {
+        const color = debug.color == null ? true : debug.color;
+        const shell = debug.shell == null ? false : debug.shell;
+        this.$print(_this.name, i, args, color, shell);
+      }
+    }
+
+    this.conn.emit('operation-start', { _id: opId, modelName: _this.modelName, collectionName: this.name, method: i, params: _args });
+
+    try {
+      if (collection == null) {
+        const message = 'Cannot call `' + this.name + '.' + i + '()` before initial connection ' +
+          'is complete if `bufferCommands = false`. Make sure you `await mongoose.connect()` if ' +
+          'you have `bufferCommands = false`.';
+        throw new MongooseError(message);
+      }
+
+      if (syncCollectionMethods[i] && typeof lastArg === 'function') {
+        const result = collection[i].apply(collection, _args.slice(0, _args.length - 1));
+        this.conn.emit('operation-end', { _id: opId, modelName: _this.modelName, collectionName: this.name, method: i, result });
+        return lastArg.call(this, null, result);
+      }
+
+      const ret = collection[i].apply(collection, _args);
+      if (ret != null && typeof ret.then === 'function') {
+        return ret.then(
+          result => {
+            if (typeof lastArg === 'function') {
+              lastArg(null, result);
+            } else {
+              this.conn.emit('operation-end', { _id: opId, modelName: _this.modelName, collectionName: this.name, method: i, result });
+            }
+            return result;
+          },
+          error => {
+            if (typeof lastArg === 'function') {
+              lastArg(error);
+              return;
+            } else {
+              this.conn.emit('operation-end', { _id: opId, modelName: _this.modelName, collectionName: this.name, method: i, error });
+            }
+            throw error;
+          }
+        );
+      }
+      return ret;
+    } catch (error) {
+      // Collection operation may throw because of max bson size, catch it here
+      // See gh-3906
+      if (typeof lastArg === 'function') {
+        return lastArg(error);
+      } else {
+        this.conn.emit('operation-end', { _id: opId, modelName: _this.modelName, collectionName: this.name, method: i, error: error });
+
+        throw error;
+      }
+    }
+  };
+}
+
+for (const key of Object.getOwnPropertyNames(Collection.prototype)) {
+  // Janky hack to work around gh-3005 until we can get rid of the mongoose
+  // collection abstraction
+  const descriptor = Object.getOwnPropertyDescriptor(Collection.prototype, key);
+  // Skip properties with getters because they may throw errors (gh-8528)
+  if (descriptor.get !== undefined) {
+    continue;
+  }
+  if (typeof Collection.prototype[key] !== 'function') {
+    continue;
+  }
+
+  iter(key);
+}
+
+/**
+ * Debug print helper
+ *
+ * @api public
+ * @method $print
+ */
+
+NativeCollection.prototype.$print = function(name, i, args, color, shell) {
+  const moduleName = color ? '\x1B[0;36mMongoose:\x1B[0m ' : 'Mongoose: ';
+  const functionCall = [name, i].join('.');
+  const _args = [];
+  for (let j = args.length - 1; j >= 0; --j) {
+    if (this.$format(args[j]) || _args.length) {
+      _args.unshift(this.$format(args[j], color, shell));
+    }
+  }
+  const params = '(' + _args.join(', ') + ')';
+
+  console.info(moduleName + functionCall + params);
+};
+
+/**
+ * Debug print helper
+ *
+ * @api public
+ * @method $print
+ */
+
+NativeCollection.prototype.$printToStream = function(name, i, args, stream) {
+  const functionCall = [name, i].join('.');
+  const _args = [];
+  for (let j = args.length - 1; j >= 0; --j) {
+    if (this.$format(args[j]) || _args.length) {
+      _args.unshift(this.$format(args[j]));
+    }
+  }
+  const params = '(' + _args.join(', ') + ')';
+
+  stream.write(functionCall + params, 'utf8');
+};
+
+/**
+ * Formatter for debug print args
+ *
+ * @api public
+ * @method $format
+ */
+
+NativeCollection.prototype.$format = function(arg, color, shell) {
+  const type = typeof arg;
+  if (type === 'function' || type === 'undefined') return '';
+  return format(arg, false, color, shell);
+};
+
+/**
+ * Debug print helper
+ * @param {Any} representation
+ * @api private
+ */
+
+function inspectable(representation) {
+  const ret = {
+    inspect: function() { return representation; }
+  };
+  if (util.inspect.custom) {
+    ret[util.inspect.custom] = ret.inspect;
+  }
+  return ret;
+}
+function map(o) {
+  return format(o, true);
+}
+function formatObjectId(x, key) {
+  x[key] = inspectable('ObjectId("' + x[key].toHexString() + '")');
+}
+function formatDate(x, key, shell) {
+  if (shell) {
+    x[key] = inspectable('ISODate("' + x[key].toUTCString() + '")');
+  } else {
+    x[key] = inspectable('new Date("' + x[key].toUTCString() + '")');
+  }
+}
+function format(obj, sub, color, shell) {
+  if (obj && typeof obj.toBSON === 'function') {
+    obj = obj.toBSON();
+  }
+  if (obj == null) {
+    return obj;
+  }
+
+  const clone = require('../../helpers/clone');
+  let x = clone(obj, internalToObjectOptions);
+  const constructorName = getConstructorName(x);
+
+  if (constructorName === 'Binary') {
+    x = 'BinData(' + x.sub_type + ', "' + x.toString('base64') + '")';
+  } else if (constructorName === 'ObjectId') {
+    x = inspectable('ObjectId("' + x.toHexString() + '")');
+  } else if (constructorName === 'Date') {
+    x = inspectable('new Date("' + x.toUTCString() + '")');
+  } else if (constructorName === 'Object') {
+    const keys = Object.keys(x);
+    const numKeys = keys.length;
+    let key;
+    for (let i = 0; i < numKeys; ++i) {
+      key = keys[i];
+      if (x[key]) {
+        let error;
+        if (typeof x[key].toBSON === 'function') {
+          try {
+            // `session.toBSON()` throws an error. This means we throw errors
+            // in debug mode when using transactions, see gh-6712. As a
+            // workaround, catch `toBSON()` errors, try to serialize without
+            // `toBSON()`, and rethrow if serialization still fails.
+            x[key] = x[key].toBSON();
+          } catch (_error) {
+            error = _error;
+          }
+        }
+        const _constructorName = getConstructorName(x[key]);
+        if (_constructorName === 'Binary') {
+          x[key] = 'BinData(' + x[key].sub_type + ', "' +
+            x[key].buffer.toString('base64') + '")';
+        } else if (_constructorName === 'Object') {
+          x[key] = format(x[key], true);
+        } else if (_constructorName === 'ObjectId') {
+          formatObjectId(x, key);
+        } else if (_constructorName === 'Date') {
+          formatDate(x, key, shell);
+        } else if (_constructorName === 'ClientSession') {
+          x[key] = inspectable('ClientSession("' +
+            (
+              x[key] &&
+              x[key].id &&
+              x[key].id.id &&
+              x[key].id.id.buffer || ''
+            ).toString('hex') + '")');
+        } else if (Array.isArray(x[key])) {
+          x[key] = x[key].map(map);
+        } else if (error != null) {
+          // If there was an error with `toBSON()` and the object wasn't
+          // already converted to a string representation, rethrow it.
+          // Open to better ideas on how to handle this.
+          throw error;
+        }
+      }
+    }
+  }
+  if (sub) {
+    return x;
+  }
+
+  return util.
+    inspect(x, false, 10, color).
+    replace(/\n/g, '').
+    replace(/\s{2,}/g, ' ');
+}
+
+/**
+ * Retrieves information about this collections indexes.
+ *
+ * @method getIndexes
+ * @api public
+ */
+
+NativeCollection.prototype.getIndexes = NativeCollection.prototype.indexInformation;
+
+/*!
+ * Module exports.
+ */
+
+module.exports = NativeCollection;
diff --git a/backend/node_modules/mongoose/lib/drivers/node-mongodb-native/connection.js b/backend/node_modules/mongoose/lib/drivers/node-mongodb-native/connection.js
new file mode 100644
index 0000000..e626cb0
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/drivers/node-mongodb-native/connection.js
@@ -0,0 +1,441 @@
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const MongooseConnection = require('../../connection');
+const MongooseError = require('../../error/index');
+const STATES = require('../../connectionState');
+const mongodb = require('mongodb');
+const pkg = require('../../../package.json');
+const processConnectionOptions = require('../../helpers/processConnectionOptions');
+const setTimeout = require('../../helpers/timers').setTimeout;
+const utils = require('../../utils');
+
+/**
+ * A [node-mongodb-native](https://github.com/mongodb/node-mongodb-native) connection implementation.
+ *
+ * @inherits Connection
+ * @api private
+ */
+
+function NativeConnection() {
+  MongooseConnection.apply(this, arguments);
+  this._listening = false;
+  // Tracks the last time (as unix timestamp) the connection received a
+  // serverHeartbeatSucceeded or serverHeartbeatFailed event from the underlying MongoClient.
+  // If we haven't received one in a while (like due to a frozen AWS Lambda container) then
+  // `readyState` is likely stale.
+  this._lastHeartbeatAt = null;
+}
+
+/**
+ * Expose the possible connection states.
+ * @api public
+ */
+
+NativeConnection.STATES = STATES;
+
+/*!
+ * Inherits from Connection.
+ */
+
+Object.setPrototypeOf(NativeConnection.prototype, MongooseConnection.prototype);
+
+/**
+ * Switches to a different database using the same connection pool.
+ *
+ * Returns a new connection object, with the new db. If you set the `useCache`
+ * option, `useDb()` will cache connections by `name`.
+ *
+ * **Note:** Calling `close()` on a `useDb()` connection will close the base connection as well.
+ *
+ * @param {String} name The database name
+ * @param {Object} [options]
+ * @param {Boolean} [options.useCache=false] If true, cache results so calling `useDb()` multiple times with the same name only creates 1 connection object.
+ * @param {Boolean} [options.noListener=false] If true, the new connection object won't listen to any events on the base connection. This is better for memory usage in cases where you're calling `useDb()` for every request.
+ * @return {Connection} New Connection Object
+ * @api public
+ */
+
+NativeConnection.prototype.useDb = function(name, options) {
+  // Return immediately if cached
+  options = options || {};
+  if (options.useCache && this.relatedDbs[name]) {
+    return this.relatedDbs[name];
+  }
+
+  // we have to manually copy all of the attributes...
+  const newConn = new this.constructor();
+  newConn.name = name;
+  newConn.base = this.base;
+  newConn.collections = {};
+  newConn.models = {};
+  newConn.replica = this.replica;
+  newConn.config = Object.assign({}, this.config, newConn.config);
+  newConn.name = this.name;
+  newConn.options = this.options;
+  newConn._readyState = this._readyState;
+  newConn._closeCalled = this._closeCalled;
+  newConn._hasOpened = this._hasOpened;
+  newConn._listening = false;
+  newConn._parent = this;
+
+  newConn.host = this.host;
+  newConn.port = this.port;
+  newConn.user = this.user;
+  newConn.pass = this.pass;
+
+  // First, when we create another db object, we are not guaranteed to have a
+  // db object to work with. So, in the case where we have a db object and it
+  // is connected, we can just proceed with setting everything up. However, if
+  // we do not have a db or the state is not connected, then we need to wait on
+  // the 'open' event of the connection before doing the rest of the setup
+  // the 'connected' event is the first time we'll have access to the db object
+
+  const _this = this;
+
+  newConn.client = _this.client;
+
+  if (this.db && this._readyState === STATES.connected) {
+    wireup();
+  } else {
+    this._queue.push({ fn: wireup });
+  }
+
+  function wireup() {
+    newConn.client = _this.client;
+    const _opts = {};
+    if (options.hasOwnProperty('noListener')) {
+      _opts.noListener = options.noListener;
+    }
+    newConn.db = _this.client.db(name, _opts);
+    newConn._lastHeartbeatAt = _this._lastHeartbeatAt;
+    newConn.onOpen();
+  }
+
+  newConn.name = name;
+
+  // push onto the otherDbs stack, this is used when state changes
+  if (options.noListener !== true) {
+    this.otherDbs.push(newConn);
+  }
+  newConn.otherDbs.push(this);
+
+  // push onto the relatedDbs cache, this is used when state changes
+  if (options && options.useCache) {
+    this.relatedDbs[newConn.name] = newConn;
+    newConn.relatedDbs = this.relatedDbs;
+  }
+
+  return newConn;
+};
+
+/**
+ * Removes the database connection with the given name created with `useDb()`.
+ *
+ * Throws an error if the database connection was not found.
+ *
+ * #### Example:
+ *
+ *     // Connect to `initialdb` first
+ *     const conn = await mongoose.createConnection('mongodb://127.0.0.1:27017/initialdb').asPromise();
+ *
+ *     // Creates an un-cached connection to `mydb`
+ *     const db = conn.useDb('mydb');
+ *
+ *     // Closes `db`, and removes `db` from `conn.relatedDbs` and `conn.otherDbs`
+ *     await conn.removeDb('mydb');
+ *
+ * @method removeDb
+ * @memberOf Connection
+ * @param {String} name The database name
+ * @return {Connection} this
+ */
+
+NativeConnection.prototype.removeDb = function removeDb(name) {
+  const dbs = this.otherDbs.filter(db => db.name === name);
+  if (!dbs.length) {
+    throw new MongooseError(`No connections to database "${name}" found`);
+  }
+
+  for (const db of dbs) {
+    db._closeCalled = true;
+    db._destroyCalled = true;
+    db._readyState = STATES.disconnected;
+    db.$wasForceClosed = true;
+  }
+  delete this.relatedDbs[name];
+  this.otherDbs = this.otherDbs.filter(db => db.name !== name);
+};
+
+/**
+ * Closes the connection
+ *
+ * @param {Boolean} [force]
+ * @return {Connection} this
+ * @api private
+ */
+
+NativeConnection.prototype.doClose = async function doClose(force) {
+  if (this.client == null) {
+    return this;
+  }
+
+  let skipCloseClient = false;
+  if (force != null && typeof force === 'object') {
+    skipCloseClient = force.skipCloseClient;
+    force = force.force;
+  }
+
+  if (skipCloseClient) {
+    return this;
+  }
+
+  await this.client.close(force);
+  // Defer because the driver will wait at least 1ms before finishing closing
+  // the pool, see https://github.com/mongodb-js/mongodb-core/blob/a8f8e4ce41936babc3b9112bf42d609779f03b39/lib/connection/pool.js#L1026-L1030.
+  // If there's queued operations, you may still get some background work
+  // after the callback is called.
+  await new Promise(resolve => setTimeout(resolve, 1));
+
+  return this;
+};
+
+/**
+ * Implementation of `listDatabases()` for MongoDB driver
+ *
+ * @return Promise
+ * @api public
+ */
+
+NativeConnection.prototype.listDatabases = async function listDatabases() {
+  await this._waitForConnect();
+
+  return await this.db.admin().listDatabases();
+};
+
+/*!
+ * ignore
+ */
+
+NativeConnection.prototype.createClient = async function createClient(uri, options) {
+  if (typeof uri !== 'string') {
+    throw new MongooseError('The `uri` parameter to `openUri()` must be a ' +
+      `string, got "${typeof uri}". Make sure the first parameter to ` +
+      '`mongoose.connect()` or `mongoose.createConnection()` is a string.');
+  }
+
+  if (this._destroyCalled) {
+    throw new MongooseError(
+      'Connection has been closed and destroyed, and cannot be used for re-opening the connection. ' +
+      'Please create a new connection with `mongoose.createConnection()` or `mongoose.connect()`.'
+    );
+  }
+
+  if (this.readyState === STATES.connecting || this.readyState === STATES.connected) {
+    if (this._connectionString !== uri) {
+      throw new MongooseError('Can\'t call `openUri()` on an active connection with ' +
+        'different connection strings. Make sure you aren\'t calling `mongoose.connect()` ' +
+        'multiple times. See: https://mongoosejs.com/docs/connections.html#multiple_connections');
+    }
+  }
+
+  options = processConnectionOptions(uri, options);
+
+  if (options) {
+
+    const autoIndex = options.config && options.config.autoIndex != null ?
+      options.config.autoIndex :
+      options.autoIndex;
+    if (autoIndex != null) {
+      this.config.autoIndex = autoIndex !== false;
+      delete options.config;
+      delete options.autoIndex;
+    }
+
+    if ('autoCreate' in options) {
+      this.config.autoCreate = !!options.autoCreate;
+      delete options.autoCreate;
+    }
+
+    if ('sanitizeFilter' in options) {
+      this.config.sanitizeFilter = options.sanitizeFilter;
+      delete options.sanitizeFilter;
+    }
+
+    if ('autoSearchIndex' in options) {
+      this.config.autoSearchIndex = options.autoSearchIndex;
+      delete options.autoSearchIndex;
+    }
+
+    // Backwards compat
+    if (options.user || options.pass) {
+      options.auth = options.auth || {};
+      options.auth.username = options.user;
+      options.auth.password = options.pass;
+
+      this.user = options.user;
+      this.pass = options.pass;
+    }
+    delete options.user;
+    delete options.pass;
+
+    if (options.bufferCommands != null) {
+      this.config.bufferCommands = options.bufferCommands;
+      delete options.bufferCommands;
+    }
+  } else {
+    options = {};
+  }
+
+  this._connectionOptions = options;
+  const dbName = options.dbName;
+  if (dbName != null) {
+    this.$dbName = dbName;
+  }
+  delete options.dbName;
+
+  if (!utils.hasUserDefinedProperty(options, 'driverInfo')) {
+    options.driverInfo = {
+      name: 'Mongoose',
+      version: pkg.version
+    };
+  }
+
+  this.readyState = STATES.connecting;
+  this._connectionString = uri;
+
+  let client;
+  try {
+    client = new mongodb.MongoClient(uri, options);
+  } catch (error) {
+    this.readyState = STATES.disconnected;
+    throw error;
+  }
+  this.client = client;
+
+  client.setMaxListeners(0);
+  await client.connect();
+
+  _setClient(this, client, options, dbName);
+
+  for (const db of this.otherDbs) {
+    _setClient(db, client, {}, db.name);
+  }
+  return this;
+};
+
+/*!
+ * ignore
+ */
+
+NativeConnection.prototype.setClient = function setClient(client) {
+  if (!(client instanceof mongodb.MongoClient)) {
+    throw new MongooseError('Must call `setClient()` with an instance of MongoClient');
+  }
+  if (this.readyState !== STATES.disconnected) {
+    throw new MongooseError('Cannot call `setClient()` on a connection that is already connected.');
+  }
+  if (client.topology == null) {
+    throw new MongooseError('Cannot call `setClient()` with a MongoClient that you have not called `connect()` on yet.');
+  }
+
+  this._connectionString = client.s.url;
+  _setClient(this, client, {}, client.s.options.dbName);
+
+  for (const model of Object.values(this.models)) {
+    // Errors handled internally, so safe to ignore error
+    model.init().catch(function $modelInitNoop() {});
+  }
+
+  return this;
+};
+
+/*!
+ * ignore
+ */
+
+function _setClient(conn, client, options, dbName) {
+  const db = dbName != null ? client.db(dbName) : client.db();
+  conn.db = db;
+  conn.client = client;
+  conn.host = client &&
+    client.s &&
+    client.s.options &&
+    client.s.options.hosts &&
+    client.s.options.hosts[0] &&
+    client.s.options.hosts[0].host || void 0;
+  conn.port = client &&
+    client.s &&
+    client.s.options &&
+    client.s.options.hosts &&
+    client.s.options.hosts[0] &&
+    client.s.options.hosts[0].port || void 0;
+  conn.name = dbName != null ? dbName : db.databaseName;
+  conn._closeCalled = client._closeCalled;
+
+  const _handleReconnect = () => {
+    // If we aren't disconnected, we assume this reconnect is due to a
+    // socket timeout. If there's no activity on a socket for
+    // `socketTimeoutMS`, the driver will attempt to reconnect and emit
+    // this event.
+    if (conn.readyState !== STATES.connected) {
+      conn.readyState = STATES.connected;
+      conn.emit('reconnect');
+      conn.emit('reconnected');
+      conn.onOpen();
+    }
+  };
+
+  const type = client &&
+  client.topology &&
+  client.topology.description &&
+  client.topology.description.type || '';
+
+  if (type === 'Single') {
+    client.on('serverDescriptionChanged', ev => {
+      const newDescription = ev.newDescription;
+      if (newDescription.type === 'Unknown') {
+        conn.readyState = STATES.disconnected;
+      } else {
+        _handleReconnect();
+      }
+    });
+  } else if (type.startsWith('ReplicaSet')) {
+    client.on('topologyDescriptionChanged', ev => {
+      // Emit disconnected if we've lost connectivity to the primary
+      const description = ev.newDescription;
+      if (conn.readyState === STATES.connected && description.type !== 'ReplicaSetWithPrimary') {
+        // Implicitly emits 'disconnected'
+        conn.readyState = STATES.disconnected;
+      } else if (conn.readyState === STATES.disconnected && description.type === 'ReplicaSetWithPrimary') {
+        _handleReconnect();
+      }
+    });
+  }
+  client.on('serverHeartbeatSucceeded', () => {
+    conn._lastHeartbeatAt = Date.now();
+  });
+
+  if (options.monitorCommands) {
+    client.on('commandStarted', (data) => conn.emit('commandStarted', data));
+    client.on('commandFailed', (data) => conn.emit('commandFailed', data));
+    client.on('commandSucceeded', (data) => conn.emit('commandSucceeded', data));
+  }
+
+  conn.onOpen();
+
+  for (const i in conn.collections) {
+    if (utils.object.hasOwnProperty(conn.collections, i)) {
+      conn.collections[i].onOpen();
+    }
+  }
+}
+
+/*!
+ * Module exports.
+ */
+
+module.exports = NativeConnection;
diff --git a/backend/node_modules/mongoose/lib/drivers/node-mongodb-native/index.js b/backend/node_modules/mongoose/lib/drivers/node-mongodb-native/index.js
new file mode 100644
index 0000000..de82be5
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/drivers/node-mongodb-native/index.js
@@ -0,0 +1,8 @@
+/*!
+ * Module exports.
+ */
+
+'use strict';
+
+exports.Collection = require('./collection');
+exports.Connection = require('./connection');
diff --git a/backend/node_modules/mongoose/lib/error/browserMissingSchema.js b/backend/node_modules/mongoose/lib/error/browserMissingSchema.js
new file mode 100644
index 0000000..ffeffc7
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/browserMissingSchema.js
@@ -0,0 +1,29 @@
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const MongooseError = require('./mongooseError');
+
+/**
+ * MissingSchema Error constructor.
+ */
+
+class MissingSchemaError extends MongooseError {
+
+  constructor() {
+    super('Schema hasn\'t been registered for document.\n'
+      + 'Use mongoose.Document(name, schema)');
+  }
+}
+
+Object.defineProperty(MissingSchemaError.prototype, 'name', {
+  value: 'MongooseError'
+});
+
+/*!
+ * exports
+ */
+
+module.exports = MissingSchemaError;
diff --git a/backend/node_modules/mongoose/lib/error/bulkSaveIncompleteError.js b/backend/node_modules/mongoose/lib/error/bulkSaveIncompleteError.js
new file mode 100644
index 0000000..c4b88e5
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/bulkSaveIncompleteError.js
@@ -0,0 +1,44 @@
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const MongooseError = require('./mongooseError');
+
+
+/**
+ * If the underwriting `bulkWrite()` for `bulkSave()` succeeded, but wasn't able to update or
+ * insert all documents, we throw this error.
+ *
+ * @api private
+ */
+
+class MongooseBulkSaveIncompleteError extends MongooseError {
+  constructor(modelName, documents, bulkWriteResult) {
+    const matchedCount = bulkWriteResult?.matchedCount ?? 0;
+    const insertedCount = bulkWriteResult?.insertedCount ?? 0;
+    let preview = documents.map(doc => doc._id).join(', ');
+    if (preview.length > 100) {
+      preview = preview.slice(0, 100) + '...';
+    }
+
+    const numDocumentsNotUpdated = documents.length - matchedCount - insertedCount;
+    super(`${modelName}.bulkSave() was not able to update ${numDocumentsNotUpdated} of the given documents due to incorrect version or optimistic concurrency, document ids: ${preview}`);
+
+    this.modelName = modelName;
+    this.documents = documents;
+    this.bulkWriteResult = bulkWriteResult;
+    this.numDocumentsNotUpdated = numDocumentsNotUpdated;
+  }
+}
+
+Object.defineProperty(MongooseBulkSaveIncompleteError.prototype, 'name', {
+  value: 'MongooseBulkSaveIncompleteError'
+});
+
+/*!
+ * exports
+ */
+
+module.exports = MongooseBulkSaveIncompleteError;
diff --git a/backend/node_modules/mongoose/lib/error/bulkWriteError.js b/backend/node_modules/mongoose/lib/error/bulkWriteError.js
new file mode 100644
index 0000000..1711b03
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/bulkWriteError.js
@@ -0,0 +1,41 @@
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const MongooseError = require('./');
+
+
+/**
+ * If `bulkWrite()` or `insertMany()` has validation errors, but
+ * all valid operations succeed, and 'throwOnValidationError' is true,
+ * Mongoose will throw this error.
+ *
+ * @api private
+ */
+
+class MongooseBulkWriteError extends MongooseError {
+  constructor(validationErrors, results, rawResult, operation) {
+    let preview = validationErrors.map(e => e.message).join(', ');
+    if (preview.length > 200) {
+      preview = preview.slice(0, 200) + '...';
+    }
+    super(`${operation} failed with ${validationErrors.length} Mongoose validation errors: ${preview}`);
+
+    this.validationErrors = validationErrors;
+    this.results = results;
+    this.rawResult = rawResult;
+    this.operation = operation;
+  }
+}
+
+Object.defineProperty(MongooseBulkWriteError.prototype, 'name', {
+  value: 'MongooseBulkWriteError'
+});
+
+/*!
+ * exports
+ */
+
+module.exports = MongooseBulkWriteError;
diff --git a/backend/node_modules/mongoose/lib/error/cast.js b/backend/node_modules/mongoose/lib/error/cast.js
new file mode 100644
index 0000000..1159271
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/cast.js
@@ -0,0 +1,158 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const MongooseError = require('./mongooseError');
+const util = require('util');
+
+/**
+ * Casting Error constructor.
+ *
+ * @param {String} type
+ * @param {String} value
+ * @inherits MongooseError
+ * @api private
+ */
+
+class CastError extends MongooseError {
+  constructor(type, value, path, reason, schemaType) {
+    // If no args, assume we'll `init()` later.
+    if (arguments.length > 0) {
+      const valueType = getValueType(value);
+      const messageFormat = getMessageFormat(schemaType);
+      const msg = formatMessage(null, type, value, path, messageFormat, valueType, reason);
+      super(msg);
+      this.init(type, value, path, reason, schemaType);
+    } else {
+      super(formatMessage());
+    }
+  }
+
+  toJSON() {
+    return {
+      stringValue: this.stringValue,
+      valueType: this.valueType,
+      kind: this.kind,
+      value: this.value,
+      path: this.path,
+      reason: this.reason,
+      name: this.name,
+      message: this.message
+    };
+  }
+  /*!
+   * ignore
+   */
+  init(type, value, path, reason, schemaType) {
+    this.stringValue = getStringValue(value);
+    this.messageFormat = getMessageFormat(schemaType);
+    this.kind = type;
+    this.value = value;
+    this.path = path;
+    this.reason = reason;
+    this.valueType = getValueType(value);
+  }
+
+  /**
+   * ignore
+   * @param {Readonly<CastError>} other
+   * @api private
+   */
+  copy(other) {
+    this.messageFormat = other.messageFormat;
+    this.stringValue = other.stringValue;
+    this.kind = other.kind;
+    this.value = other.value;
+    this.path = other.path;
+    this.reason = other.reason;
+    this.message = other.message;
+    this.valueType = other.valueType;
+  }
+
+  /*!
+   * ignore
+   */
+  setModel(model) {
+    this.message = formatMessage(model, this.kind, this.value, this.path,
+      this.messageFormat, this.valueType);
+  }
+}
+
+Object.defineProperty(CastError.prototype, 'name', {
+  value: 'CastError'
+});
+
+function getStringValue(value) {
+  let stringValue = util.inspect(value);
+  stringValue = stringValue.replace(/^'|'$/g, '"');
+  if (!stringValue.startsWith('"')) {
+    stringValue = '"' + stringValue + '"';
+  }
+  return stringValue;
+}
+
+function getValueType(value) {
+  if (value == null) {
+    return '' + value;
+  }
+
+  const t = typeof value;
+  if (t !== 'object') {
+    return t;
+  }
+  if (typeof value.constructor !== 'function') {
+    return t;
+  }
+  return value.constructor.name;
+}
+
+function getMessageFormat(schemaType) {
+  const messageFormat = schemaType && schemaType._castErrorMessage || null;
+  if (typeof messageFormat === 'string' || typeof messageFormat === 'function') {
+    return messageFormat;
+  }
+}
+
+/*!
+ * ignore
+ */
+
+function formatMessage(model, kind, value, path, messageFormat, valueType, reason) {
+  if (typeof messageFormat === 'string') {
+    const stringValue = getStringValue(value);
+    let ret = messageFormat.
+      replace('{KIND}', kind).
+      replace('{VALUE}', stringValue).
+      replace('{PATH}', path);
+    if (model != null) {
+      ret = ret.replace('{MODEL}', model.modelName);
+    }
+
+    return ret;
+  } else if (typeof messageFormat === 'function') {
+    return messageFormat(value, path, model, kind);
+  } else {
+    const stringValue = getStringValue(value);
+    const valueTypeMsg = valueType ? ' (type ' + valueType + ')' : '';
+    let ret = 'Cast to ' + kind + ' failed for value ' +
+      stringValue + valueTypeMsg + ' at path "' + path + '"';
+    if (model != null) {
+      ret += ' for model "' + model.modelName + '"';
+    }
+    if (reason != null &&
+        typeof reason.constructor === 'function' &&
+        reason.constructor.name !== 'AssertionError' &&
+        reason.constructor.name !== 'Error') {
+      ret += ' because of "' + reason.constructor.name + '"';
+    }
+    return ret;
+  }
+}
+
+/*!
+ * exports
+ */
+
+module.exports = CastError;
diff --git a/backend/node_modules/mongoose/lib/error/createCollectionsError.js b/backend/node_modules/mongoose/lib/error/createCollectionsError.js
new file mode 100644
index 0000000..4b69cae
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/createCollectionsError.js
@@ -0,0 +1,26 @@
+'use strict';
+
+const MongooseError = require('./mongooseError');
+
+/**
+ * createCollections Error constructor
+ *
+ * @param {String} message
+ * @param {String} errorsMap
+ * @inherits MongooseError
+ * @api private
+ */
+
+class CreateCollectionsError extends MongooseError {
+  constructor(message, errorsMap) {
+    super(message);
+    this.errors = errorsMap;
+  }
+}
+
+Object.defineProperty(CreateCollectionsError.prototype, 'name', {
+  value: 'CreateCollectionsError'
+});
+
+module.exports = CreateCollectionsError;
+
diff --git a/backend/node_modules/mongoose/lib/error/divergentArray.js b/backend/node_modules/mongoose/lib/error/divergentArray.js
new file mode 100644
index 0000000..bc3f181
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/divergentArray.js
@@ -0,0 +1,40 @@
+
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const MongooseError = require('./mongooseError');
+
+/**
+ * DivergentArrayError constructor.
+ * @param {Array<String>} paths
+ * @api private
+ */
+
+class DivergentArrayError extends MongooseError {
+
+  constructor(paths) {
+    const msg = 'For your own good, using `document.save()` to update an array '
+            + 'which was selected using an $elemMatch projection OR '
+            + 'populated using skip, limit, query conditions, or exclusion of '
+            + 'the _id field when the operation results in a $pop or $set of '
+            + 'the entire array is not supported. The following '
+            + 'path(s) would have been modified unsafely:\n'
+            + '  ' + paths.join('\n  ') + '\n'
+            + 'Use Model.updateOne() to update these arrays instead.';
+    // TODO write up a docs page (FAQ) and link to it
+    super(msg);
+  }
+}
+
+Object.defineProperty(DivergentArrayError.prototype, 'name', {
+  value: 'DivergentArrayError'
+});
+
+/*!
+ * exports
+ */
+
+module.exports = DivergentArrayError;
diff --git a/backend/node_modules/mongoose/lib/error/eachAsyncMultiError.js b/backend/node_modules/mongoose/lib/error/eachAsyncMultiError.js
new file mode 100644
index 0000000..b14156a
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/eachAsyncMultiError.js
@@ -0,0 +1,41 @@
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const MongooseError = require('./mongooseError');
+
+
+/**
+ * If `eachAsync()` is called with `continueOnError: true`, there can be
+ * multiple errors. This error class contains an `errors` property, which
+ * contains an array of all errors that occurred in `eachAsync()`.
+ *
+ * @api private
+ */
+
+class EachAsyncMultiError extends MongooseError {
+  /**
+   * @param {String} connectionString
+   */
+  constructor(errors) {
+    let preview = errors.map(e => e.message).join(', ');
+    if (preview.length > 50) {
+      preview = preview.slice(0, 50) + '...';
+    }
+    super(`eachAsync() finished with ${errors.length} errors: ${preview}`);
+
+    this.errors = errors;
+  }
+}
+
+Object.defineProperty(EachAsyncMultiError.prototype, 'name', {
+  value: 'EachAsyncMultiError'
+});
+
+/*!
+ * exports
+ */
+
+module.exports = EachAsyncMultiError;
diff --git a/backend/node_modules/mongoose/lib/error/index.js b/backend/node_modules/mongoose/lib/error/index.js
new file mode 100644
index 0000000..6e31a83
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/index.js
@@ -0,0 +1,227 @@
+'use strict';
+
+/**
+ * MongooseError constructor. MongooseError is the base class for all
+ * Mongoose-specific errors.
+ *
+ * #### Example:
+ *
+ *     const Model = mongoose.model('Test', new mongoose.Schema({ answer: Number }));
+ *     const doc = new Model({ answer: 'not a number' });
+ *     const err = doc.validateSync();
+ *
+ *     err instanceof mongoose.Error.ValidationError; // true
+ *
+ * @constructor Error
+ * @param {String} msg Error message
+ * @inherits Error https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error
+ */
+
+const MongooseError = require('./mongooseError');
+
+/**
+ * The name of the error. The name uniquely identifies this Mongoose error. The
+ * possible values are:
+ *
+ * - `MongooseError`: general Mongoose error
+ * - `CastError`: Mongoose could not convert a value to the type defined in the schema path. May be in a `ValidationError` class' `errors` property.
+ * - `DivergentArrayError`: You attempted to `save()` an array that was modified after you loaded it with a `$elemMatch` or similar projection
+ * - `MissingSchemaError`: You tried to access a model with [`mongoose.model()`](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.model()) that was not defined
+ * - `DocumentNotFoundError`: The document you tried to [`save()`](https://mongoosejs.com/docs/api/document.html#Document.prototype.save()) was not found
+ * - `ValidatorError`: error from an individual schema path's validator
+ * - `ValidationError`: error returned from [`validate()`](https://mongoosejs.com/docs/api/document.html#Document.prototype.validate()) or [`validateSync()`](https://mongoosejs.com/docs/api/document.html#Document.prototype.validateSync()). Contains zero or more `ValidatorError` instances in `.errors` property.
+ * - `MissingSchemaError`: You called `mongoose.Document()` without a schema
+ * - `ObjectExpectedError`: Thrown when you set a nested path to a non-object value with [strict mode set](https://mongoosejs.com/docs/guide.html#strict).
+ * - `ObjectParameterError`: Thrown when you pass a non-object value to a function which expects an object as a paramter
+ * - `OverwriteModelError`: Thrown when you call [`mongoose.model()`](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.model()) to re-define a model that was already defined.
+ * - `ParallelSaveError`: Thrown when you call [`save()`](https://mongoosejs.com/docs/api/model.html#Model.prototype.save()) on a document when the same document instance is already saving.
+ * - `StrictModeError`: Thrown when you set a path that isn't the schema and [strict mode](https://mongoosejs.com/docs/guide.html#strict) is set to `throw`.
+ * - `VersionError`: Thrown when the [document is out of sync](https://mongoosejs.com/docs/guide.html#versionKey)
+ *
+ * @api public
+ * @property {String} name
+ * @memberOf Error
+ * @instance
+ */
+
+/*!
+ * Module exports.
+ */
+
+module.exports = exports = MongooseError;
+
+/**
+ * The default built-in validator error messages.
+ *
+ * @see Error.messages https://mongoosejs.com/docs/api/error.html#Error.messages
+ * @api public
+ * @memberOf Error
+ * @static
+ */
+
+MongooseError.messages = require('./messages');
+
+// backward compat
+MongooseError.Messages = MongooseError.messages;
+
+/**
+ * An instance of this error class will be returned when `save()` fails
+ * because the underlying
+ * document was not found. The constructor takes one parameter, the
+ * conditions that mongoose passed to `updateOne()` when trying to update
+ * the document.
+ *
+ * @api public
+ * @memberOf Error
+ * @static
+ */
+
+MongooseError.DocumentNotFoundError = require('./notFound');
+
+/**
+ * An instance of this error class will be returned when mongoose failed to
+ * cast a value.
+ *
+ * @api public
+ * @memberOf Error
+ * @static
+ */
+
+MongooseError.CastError = require('./cast');
+
+/**
+ * An instance of this error class will be returned when [validation](https://mongoosejs.com/docs/validation.html) failed.
+ * The `errors` property contains an object whose keys are the paths that failed and whose values are
+ * instances of CastError or ValidationError.
+ *
+ * @api public
+ * @memberOf Error
+ * @static
+ */
+
+MongooseError.ValidationError = require('./validation');
+
+/**
+ * A `ValidationError` has a hash of `errors` that contain individual
+ * `ValidatorError` instances.
+ *
+ * #### Example:
+ *
+ *     const schema = Schema({ name: { type: String, required: true } });
+ *     const Model = mongoose.model('Test', schema);
+ *     const doc = new Model({});
+ *
+ *     // Top-level error is a ValidationError, **not** a ValidatorError
+ *     const err = doc.validateSync();
+ *     err instanceof mongoose.Error.ValidationError; // true
+ *
+ *     // A ValidationError `err` has 0 or more ValidatorErrors keyed by the
+ *     // path in the `err.errors` property.
+ *     err.errors['name'] instanceof mongoose.Error.ValidatorError;
+ *
+ *     err.errors['name'].kind; // 'required'
+ *     err.errors['name'].path; // 'name'
+ *     err.errors['name'].value; // undefined
+ *
+ * Instances of `ValidatorError` have the following properties:
+ *
+ * - `kind`: The validator's `type`, like `'required'` or `'regexp'`
+ * - `path`: The path that failed validation
+ * - `value`: The value that failed validation
+ *
+ * @api public
+ * @memberOf Error
+ * @static
+ */
+
+MongooseError.ValidatorError = require('./validator');
+
+/**
+ * An instance of this error class will be returned when you call `save()` after
+ * the document in the database was changed in a potentially unsafe way. See
+ * the [`versionKey` option](https://mongoosejs.com/docs/guide.html#versionKey) for more information.
+ *
+ * @api public
+ * @memberOf Error
+ * @static
+ */
+
+MongooseError.VersionError = require('./version');
+
+/**
+ * An instance of this error class will be returned when you call `save()` multiple
+ * times on the same document in parallel. See the [FAQ](https://mongoosejs.com/docs/faq.html) for more
+ * information.
+ *
+ * @api public
+ * @memberOf Error
+ * @static
+ */
+
+MongooseError.ParallelSaveError = require('./parallelSave');
+
+/**
+ * Thrown when a model with the given name was already registered on the connection.
+ * See [the FAQ about `OverwriteModelError`](https://mongoosejs.com/docs/faq.html#overwrite-model-error).
+ *
+ * @api public
+ * @memberOf Error
+ * @static
+ */
+
+MongooseError.OverwriteModelError = require('./overwriteModel');
+
+/**
+ * Thrown when you try to access a model that has not been registered yet
+ *
+ * @api public
+ * @memberOf Error
+ * @static
+ */
+
+MongooseError.MissingSchemaError = require('./missingSchema');
+
+/**
+ * Thrown when the MongoDB Node driver can't connect to a valid server
+ * to send an operation to.
+ *
+ * @api public
+ * @memberOf Error
+ * @static
+ */
+
+MongooseError.MongooseServerSelectionError = require('./serverSelection');
+
+/**
+ * An instance of this error will be returned if you used an array projection
+ * and then modified the array in an unsafe way.
+ *
+ * @api public
+ * @memberOf Error
+ * @static
+ */
+
+MongooseError.DivergentArrayError = require('./divergentArray');
+
+/**
+ * Thrown when your try to pass values to model constructor that
+ * were not specified in schema or change immutable properties when
+ * `strict` mode is `"throw"`
+ *
+ * @api public
+ * @memberOf Error
+ * @static
+ */
+
+MongooseError.StrictModeError = require('./strict');
+
+/**
+ * An instance of this error class will be returned when mongoose failed to
+ * populate with a path that is not existing.
+ *
+ * @api public
+ * @memberOf Error
+ * @static
+ */
+
+MongooseError.StrictPopulateError = require('./strictPopulate');
diff --git a/backend/node_modules/mongoose/lib/error/invalidSchemaOption.js b/backend/node_modules/mongoose/lib/error/invalidSchemaOption.js
new file mode 100644
index 0000000..9e7e4ff
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/invalidSchemaOption.js
@@ -0,0 +1,32 @@
+
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const MongooseError = require('./mongooseError');
+
+/**
+ * InvalidSchemaOption Error constructor.
+ * @param {String} name
+ * @api private
+ */
+
+class InvalidSchemaOptionError extends MongooseError {
+
+  constructor(name, option) {
+    const msg = `Cannot create use schema for property "${name}" because the schema has the ${option} option enabled.`;
+    super(msg);
+  }
+}
+
+Object.defineProperty(InvalidSchemaOptionError.prototype, 'name', {
+  value: 'InvalidSchemaOptionError'
+});
+
+/*!
+ * exports
+ */
+
+module.exports = InvalidSchemaOptionError;
diff --git a/backend/node_modules/mongoose/lib/error/messages.js b/backend/node_modules/mongoose/lib/error/messages.js
new file mode 100644
index 0000000..a2db50a
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/messages.js
@@ -0,0 +1,47 @@
+
+/**
+ * The default built-in validator error messages. These may be customized.
+ *
+ *     // customize within each schema or globally like so
+ *     const mongoose = require('mongoose');
+ *     mongoose.Error.messages.String.enum  = "Your custom message for {PATH}.";
+ *
+ * Error messages support basic templating. Mongoose will replace the following strings with the corresponding value.
+ *
+ * - `{PATH}` is replaced with the invalid document path
+ * - `{VALUE}` is replaced with the invalid value
+ * - `{TYPE}` is replaced with the validator type such as "regexp", "min", or "user defined"
+ * - `{MIN}` is replaced with the declared min value for the Number.min validator
+ * - `{MAX}` is replaced with the declared max value for the Number.max validator
+ *
+ * Click the "show code" link below to see all defaults.
+ *
+ * @static
+ * @memberOf MongooseError
+ * @api public
+ */
+
+'use strict';
+
+const msg = module.exports = exports = {};
+
+msg.DocumentNotFoundError = null;
+
+msg.general = {};
+msg.general.default = 'Validator failed for path `{PATH}` with value `{VALUE}`';
+msg.general.required = 'Path `{PATH}` is required.';
+
+msg.Number = {};
+msg.Number.min = 'Path `{PATH}` ({VALUE}) is less than minimum allowed value ({MIN}).';
+msg.Number.max = 'Path `{PATH}` ({VALUE}) is more than maximum allowed value ({MAX}).';
+msg.Number.enum = '`{VALUE}` is not a valid enum value for path `{PATH}`.';
+
+msg.Date = {};
+msg.Date.min = 'Path `{PATH}` ({VALUE}) is before minimum allowed value ({MIN}).';
+msg.Date.max = 'Path `{PATH}` ({VALUE}) is after maximum allowed value ({MAX}).';
+
+msg.String = {};
+msg.String.enum = '`{VALUE}` is not a valid enum value for path `{PATH}`.';
+msg.String.match = 'Path `{PATH}` is invalid ({VALUE}).';
+msg.String.minlength = 'Path `{PATH}` (`{VALUE}`) is shorter than the minimum allowed length ({MINLENGTH}).';
+msg.String.maxlength = 'Path `{PATH}` (`{VALUE}`) is longer than the maximum allowed length ({MAXLENGTH}).';
diff --git a/backend/node_modules/mongoose/lib/error/missingSchema.js b/backend/node_modules/mongoose/lib/error/missingSchema.js
new file mode 100644
index 0000000..790f785
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/missingSchema.js
@@ -0,0 +1,33 @@
+
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const MongooseError = require('./mongooseError');
+
+/**
+ * MissingSchema Error constructor.
+ * @param {String} name
+ * @api private
+ */
+
+class MissingSchemaError extends MongooseError {
+
+  constructor(name) {
+    const msg = 'Schema hasn\'t been registered for model "' + name + '".\n'
+            + 'Use mongoose.model(name, schema)';
+    super(msg);
+  }
+}
+
+Object.defineProperty(MissingSchemaError.prototype, 'name', {
+  value: 'MissingSchemaError'
+});
+
+/*!
+ * exports
+ */
+
+module.exports = MissingSchemaError;
diff --git a/backend/node_modules/mongoose/lib/error/mongooseError.js b/backend/node_modules/mongoose/lib/error/mongooseError.js
new file mode 100644
index 0000000..5505105
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/mongooseError.js
@@ -0,0 +1,13 @@
+'use strict';
+
+/*!
+ * ignore
+ */
+
+class MongooseError extends Error { }
+
+Object.defineProperty(MongooseError.prototype, 'name', {
+  value: 'MongooseError'
+});
+
+module.exports = MongooseError;
diff --git a/backend/node_modules/mongoose/lib/error/notFound.js b/backend/node_modules/mongoose/lib/error/notFound.js
new file mode 100644
index 0000000..87fdd8b
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/notFound.js
@@ -0,0 +1,47 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const MongooseError = require('./mongooseError');
+const util = require('util');
+
+/**
+ * OverwriteModel Error constructor.
+ * @api private
+ */
+
+class DocumentNotFoundError extends MongooseError {
+
+  constructor(filter, model, numAffected, result) {
+    let msg;
+    const messages = MongooseError.messages;
+    if (messages.DocumentNotFoundError != null) {
+      msg = typeof messages.DocumentNotFoundError === 'function' ?
+        messages.DocumentNotFoundError(filter, model) :
+        messages.DocumentNotFoundError;
+    } else {
+      msg = 'No document found for query "' + util.inspect(filter) +
+        '" on model "' + model + '"';
+    }
+
+    super(msg);
+
+    this.result = result;
+    this.numAffected = numAffected;
+    this.filter = filter;
+    // Backwards compat
+    this.query = filter;
+  }
+}
+
+Object.defineProperty(DocumentNotFoundError.prototype, 'name', {
+  value: 'DocumentNotFoundError'
+});
+
+/*!
+ * exports
+ */
+
+module.exports = DocumentNotFoundError;
diff --git a/backend/node_modules/mongoose/lib/error/objectExpected.js b/backend/node_modules/mongoose/lib/error/objectExpected.js
new file mode 100644
index 0000000..bd89ffc
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/objectExpected.js
@@ -0,0 +1,31 @@
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const MongooseError = require('./mongooseError');
+
+/**
+ * Strict mode error constructor
+ *
+ * @param {string} type
+ * @param {string} value
+ * @api private
+ */
+
+class ObjectExpectedError extends MongooseError {
+
+  constructor(path, val) {
+    const typeDescription = Array.isArray(val) ? 'array' : 'primitive value';
+    super('Tried to set nested object field `' + path +
+      `\` to ${typeDescription} \`` + val + '`');
+    this.path = path;
+  }
+}
+
+Object.defineProperty(ObjectExpectedError.prototype, 'name', {
+  value: 'ObjectExpectedError'
+});
+
+module.exports = ObjectExpectedError;
diff --git a/backend/node_modules/mongoose/lib/error/objectParameter.js b/backend/node_modules/mongoose/lib/error/objectParameter.js
new file mode 100644
index 0000000..0a2108e
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/objectParameter.js
@@ -0,0 +1,32 @@
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const MongooseError = require('./mongooseError');
+
+/**
+ * Constructor for errors that happen when a parameter that's expected to be
+ * an object isn't an object
+ *
+ * @param {Any} value
+ * @param {String} paramName
+ * @param {String} fnName
+ * @api private
+ */
+
+class ObjectParameterError extends MongooseError {
+
+  constructor(value, paramName, fnName) {
+    super('Parameter "' + paramName + '" to ' + fnName +
+      '() must be an object, got "' + value.toString() + '" (type ' + typeof value + ')');
+  }
+}
+
+
+Object.defineProperty(ObjectParameterError.prototype, 'name', {
+  value: 'ObjectParameterError'
+});
+
+module.exports = ObjectParameterError;
diff --git a/backend/node_modules/mongoose/lib/error/overwriteModel.js b/backend/node_modules/mongoose/lib/error/overwriteModel.js
new file mode 100644
index 0000000..ef828f9
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/overwriteModel.js
@@ -0,0 +1,31 @@
+
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const MongooseError = require('./mongooseError');
+
+/**
+ * OverwriteModel Error constructor.
+ * @param {String} name
+ * @api private
+ */
+
+class OverwriteModelError extends MongooseError {
+
+  constructor(name) {
+    super('Cannot overwrite `' + name + '` model once compiled.');
+  }
+}
+
+Object.defineProperty(OverwriteModelError.prototype, 'name', {
+  value: 'OverwriteModelError'
+});
+
+/*!
+ * exports
+ */
+
+module.exports = OverwriteModelError;
diff --git a/backend/node_modules/mongoose/lib/error/parallelSave.js b/backend/node_modules/mongoose/lib/error/parallelSave.js
new file mode 100644
index 0000000..fd554fa
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/parallelSave.js
@@ -0,0 +1,33 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const MongooseError = require('./mongooseError');
+
+
+/**
+ * ParallelSave Error constructor.
+ *
+ * @param {Document} doc
+ * @api private
+ */
+
+class ParallelSaveError extends MongooseError {
+
+  constructor(doc) {
+    const msg = 'Can\'t save() the same doc multiple times in parallel. Document: ';
+    super(msg + doc._doc._id);
+  }
+}
+
+Object.defineProperty(ParallelSaveError.prototype, 'name', {
+  value: 'ParallelSaveError'
+});
+
+/*!
+ * exports
+ */
+
+module.exports = ParallelSaveError;
diff --git a/backend/node_modules/mongoose/lib/error/parallelValidate.js b/backend/node_modules/mongoose/lib/error/parallelValidate.js
new file mode 100644
index 0000000..d70e296
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/parallelValidate.js
@@ -0,0 +1,33 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const MongooseError = require('./mongooseError');
+
+
+/**
+ * ParallelValidate Error constructor.
+ *
+ * @param {Document} doc
+ * @api private
+ */
+
+class ParallelValidateError extends MongooseError {
+
+  constructor(doc) {
+    const msg = 'Can\'t validate() the same doc multiple times in parallel. Document: ';
+    super(msg + doc._doc._id);
+  }
+}
+
+Object.defineProperty(ParallelValidateError.prototype, 'name', {
+  value: 'ParallelValidateError'
+});
+
+/*!
+ * exports
+ */
+
+module.exports = ParallelValidateError;
diff --git a/backend/node_modules/mongoose/lib/error/serverSelection.js b/backend/node_modules/mongoose/lib/error/serverSelection.js
new file mode 100644
index 0000000..743eb96
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/serverSelection.js
@@ -0,0 +1,61 @@
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const MongooseError = require('./mongooseError');
+const allServersUnknown = require('../helpers/topology/allServersUnknown');
+const isAtlas = require('../helpers/topology/isAtlas');
+const isSSLError = require('../helpers/topology/isSSLError');
+
+/*!
+ * ignore
+ */
+
+const atlasMessage = 'Could not connect to any servers in your MongoDB Atlas cluster. ' +
+  'One common reason is that you\'re trying to access the database from ' +
+  'an IP that isn\'t whitelisted. Make sure your current IP address is on your Atlas ' +
+  'cluster\'s IP whitelist: https://www.mongodb.com/docs/atlas/security-whitelist/';
+
+const sslMessage = 'Mongoose is connecting with SSL enabled, but the server is ' +
+  'not accepting SSL connections. Please ensure that the MongoDB server you are ' +
+  'connecting to is configured to accept SSL connections. Learn more: ' +
+  'https://mongoosejs.com/docs/tutorials/ssl.html';
+
+class MongooseServerSelectionError extends MongooseError {
+  /**
+   * MongooseServerSelectionError constructor
+   *
+   * @api private
+   */
+  assimilateError(err) {
+    const reason = err.reason;
+    // Special message for a case that is likely due to IP whitelisting issues.
+    const isAtlasWhitelistError = isAtlas(reason) &&
+      allServersUnknown(reason) &&
+      err.message.indexOf('bad auth') === -1 &&
+      err.message.indexOf('Authentication failed') === -1;
+
+    if (isAtlasWhitelistError) {
+      this.message = atlasMessage;
+    } else if (isSSLError(reason)) {
+      this.message = sslMessage;
+    } else {
+      this.message = err.message;
+    }
+    for (const key in err) {
+      if (key !== 'name') {
+        this[key] = err[key];
+      }
+    }
+
+    return this;
+  }
+}
+
+Object.defineProperty(MongooseServerSelectionError.prototype, 'name', {
+  value: 'MongooseServerSelectionError'
+});
+
+module.exports = MongooseServerSelectionError;
diff --git a/backend/node_modules/mongoose/lib/error/setOptionError.js b/backend/node_modules/mongoose/lib/error/setOptionError.js
new file mode 100644
index 0000000..369096f
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/setOptionError.js
@@ -0,0 +1,103 @@
+/*!
+ * Module requirements
+ */
+
+'use strict';
+
+const MongooseError = require('./mongooseError');
+const util = require('util');
+const combinePathErrors = require('../helpers/error/combinePathErrors');
+
+/**
+ * Mongoose.set Error
+ *
+ * @api private
+ * @inherits MongooseError
+ */
+
+class SetOptionError extends MongooseError {
+
+  constructor() {
+    super('');
+
+    this.errors = {};
+  }
+
+  /**
+   * Console.log helper
+   */
+  toString() {
+    return combinePathErrors(this);
+  }
+
+  /**
+   * inspect helper
+   * @api private
+   */
+  inspect() {
+    return Object.assign(new Error(this.message), this);
+  }
+
+  /**
+  * add message
+  * @param {String} key
+  * @param {String|Error} error
+  * @api private
+  */
+  addError(key, error) {
+    if (error instanceof SetOptionError) {
+      const { errors } = error;
+      for (const optionKey of Object.keys(errors)) {
+        this.addError(optionKey, errors[optionKey]);
+      }
+
+      return;
+    }
+
+    this.errors[key] = error;
+    this.message = combinePathErrors(this);
+  }
+}
+
+
+if (util.inspect.custom) {
+  // Avoid Node deprecation warning DEP0079
+  SetOptionError.prototype[util.inspect.custom] = SetOptionError.prototype.inspect;
+}
+
+/**
+ * Helper for JSON.stringify
+ * Ensure `name` and `message` show up in toJSON output re: gh-9847
+ * @api private
+ */
+Object.defineProperty(SetOptionError.prototype, 'toJSON', {
+  enumerable: false,
+  writable: false,
+  configurable: true,
+  value: function() {
+    return Object.assign({}, this, { name: this.name, message: this.message });
+  }
+});
+
+
+Object.defineProperty(SetOptionError.prototype, 'name', {
+  value: 'SetOptionError'
+});
+
+class SetOptionInnerError extends MongooseError {
+  /**
+   * Error for the "errors" array in "SetOptionError" with consistent message
+   * @param {String} key
+   */
+  constructor(key) {
+    super(`"${key}" is not a valid option to set`);
+  }
+}
+
+SetOptionError.SetOptionInnerError = SetOptionInnerError;
+
+/*!
+ * Module exports
+ */
+
+module.exports = SetOptionError;
diff --git a/backend/node_modules/mongoose/lib/error/strict.js b/backend/node_modules/mongoose/lib/error/strict.js
new file mode 100644
index 0000000..eda7d9a
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/strict.js
@@ -0,0 +1,35 @@
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const MongooseError = require('./mongooseError');
+
+/**
+ * Strict mode error constructor
+ *
+ * @param {String} path
+ * @param {String} [msg]
+ * @param {Boolean} [immutable]
+ * @inherits MongooseError
+ * @api private
+ */
+
+
+class StrictModeError extends MongooseError {
+
+  constructor(path, msg, immutable) {
+    msg = msg || 'Field `' + path + '` is not in schema and strict ' +
+      'mode is set to throw.';
+    super(msg);
+    this.isImmutableError = !!immutable;
+    this.path = path;
+  }
+}
+
+Object.defineProperty(StrictModeError.prototype, 'name', {
+  value: 'StrictModeError'
+});
+
+module.exports = StrictModeError;
diff --git a/backend/node_modules/mongoose/lib/error/strictPopulate.js b/backend/node_modules/mongoose/lib/error/strictPopulate.js
new file mode 100644
index 0000000..d554d71
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/strictPopulate.js
@@ -0,0 +1,31 @@
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const MongooseError = require('./mongooseError');
+
+/**
+ * Strict mode error constructor
+ *
+ * @param {String} path
+ * @param {String} [msg]
+ * @inherits MongooseError
+ * @api private
+ */
+
+class StrictPopulateError extends MongooseError {
+
+  constructor(path, msg) {
+    msg = msg || 'Cannot populate path `' + path + '` because it is not in your schema. ' + 'Set the `strictPopulate` option to false to override.';
+    super(msg);
+    this.path = path;
+  }
+}
+
+Object.defineProperty(StrictPopulateError.prototype, 'name', {
+  value: 'StrictPopulateError'
+});
+
+module.exports = StrictPopulateError;
diff --git a/backend/node_modules/mongoose/lib/error/syncIndexes.js b/backend/node_modules/mongoose/lib/error/syncIndexes.js
new file mode 100644
index 0000000..54f345b
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/syncIndexes.js
@@ -0,0 +1,30 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const MongooseError = require('./mongooseError');
+
+/**
+ * SyncIndexes Error constructor.
+ *
+ * @param {String} message
+ * @param {String} errorsMap
+ * @inherits MongooseError
+ * @api private
+ */
+
+class SyncIndexesError extends MongooseError {
+  constructor(message, errorsMap) {
+    super(message);
+    this.errors = errorsMap;
+  }
+}
+
+Object.defineProperty(SyncIndexesError.prototype, 'name', {
+  value: 'SyncIndexesError'
+});
+
+
+module.exports = SyncIndexesError;
diff --git a/backend/node_modules/mongoose/lib/error/validation.js b/backend/node_modules/mongoose/lib/error/validation.js
new file mode 100644
index 0000000..faa4ea7
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/validation.js
@@ -0,0 +1,105 @@
+/*!
+ * Module requirements
+ */
+
+'use strict';
+
+const MongooseError = require('./mongooseError');
+const getConstructorName = require('../helpers/getConstructorName');
+const util = require('util');
+const combinePathErrors = require('../helpers/error/combinePathErrors');
+
+/**
+ * Document Validation Error
+ *
+ * @api private
+ * @param {Document} [instance]
+ * @inherits MongooseError
+ */
+
+class ValidationError extends MongooseError {
+
+  constructor(instance) {
+    let _message;
+    if (getConstructorName(instance) === 'model') {
+      _message = instance.constructor.modelName + ' validation failed';
+    } else {
+      _message = 'Validation failed';
+    }
+
+    super(_message);
+
+    this.errors = {};
+    this._message = _message;
+
+    if (instance) {
+      instance.$errors = this.errors;
+    }
+  }
+
+  /**
+   * Console.log helper
+   */
+  toString() {
+    return this.name + ': ' + combinePathErrors(this);
+  }
+
+  /**
+   * inspect helper
+   * @api private
+   */
+  inspect() {
+    return Object.assign(new Error(this.message), this);
+  }
+
+  /**
+  * add message
+  * @param {String} path
+  * @param {String|Error} error
+  * @api private
+  */
+  addError(path, error) {
+    if (error instanceof ValidationError) {
+      const { errors } = error;
+      for (const errorPath of Object.keys(errors)) {
+        this.addError(`${path}.${errorPath}`, errors[errorPath]);
+      }
+
+      return;
+    }
+
+    this.errors[path] = error;
+    this.message = this._message + ': ' + combinePathErrors(this);
+  }
+}
+
+
+if (util.inspect.custom) {
+  // Avoid Node deprecation warning DEP0079
+  ValidationError.prototype[util.inspect.custom] = ValidationError.prototype.inspect;
+}
+
+/**
+ * Helper for JSON.stringify
+ * Ensure `name` and `message` show up in toJSON output re: gh-9847
+ * @api private
+ */
+Object.defineProperty(ValidationError.prototype, 'toJSON', {
+  enumerable: false,
+  writable: false,
+  configurable: true,
+  value: function() {
+    return Object.assign({}, this, { name: this.name, message: this.message });
+  }
+});
+
+
+Object.defineProperty(ValidationError.prototype, 'name', {
+  value: 'ValidationError'
+});
+
+/*!
+ * Module exports
+ */
+
+module.exports = ValidationError;
diff --git a/backend/node_modules/mongoose/lib/error/validator.js b/backend/node_modules/mongoose/lib/error/validator.js
new file mode 100644
index 0000000..38f98f0
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/validator.js
@@ -0,0 +1,100 @@
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const MongooseError = require('./mongooseError');
+
+/**
+ * Schema validator error
+ *
+ * @param {Object} properties
+ * @param {Document} doc
+ * @api private
+ */
+
+class ValidatorError extends MongooseError {
+
+  constructor(properties, doc) {
+    let msg = properties.message;
+    if (!msg) {
+      msg = MongooseError.messages.general.default;
+    }
+
+    const message = formatMessage(msg, properties, doc);
+    super(message);
+
+    properties = Object.assign({}, properties, { message: message });
+    this.properties = properties;
+    this.kind = properties.type;
+    this.path = properties.path;
+    this.value = properties.value;
+    this.reason = properties.reason;
+  }
+
+  /**
+   * toString helper
+   * TODO remove? This defaults to `${this.name}: ${this.message}`
+   * @api private
+   */
+  toString() {
+    return this.message;
+  }
+
+  /**
+   * Ensure `name` and `message` show up in toJSON output re: gh-9296
+   * @api private
+   */
+
+  toJSON() {
+    return Object.assign({ name: this.name, message: this.message }, this);
+  }
+}
+
+
+Object.defineProperty(ValidatorError.prototype, 'name', {
+  value: 'ValidatorError'
+});
+
+/**
+ * The object used to define this validator. Not enumerable to hide
+ * it from `require('util').inspect()` output re: gh-3925
+ * @api private
+ */
+
+Object.defineProperty(ValidatorError.prototype, 'properties', {
+  enumerable: false,
+  writable: true,
+  value: null
+});
+
+// Exposed for testing
+ValidatorError.prototype.formatMessage = formatMessage;
+
+/**
+ * Formats error messages
+ * @api private
+ */
+
+function formatMessage(msg, properties, doc) {
+  if (typeof msg === 'function') {
+    return msg(properties, doc);
+  }
+
+  const propertyNames = Object.keys(properties);
+  for (const propertyName of propertyNames) {
+    if (propertyName === 'message') {
+      continue;
+    }
+    msg = msg.replace('{' + propertyName.toUpperCase() + '}', properties[propertyName]);
+  }
+
+  return msg;
+}
+
+/*!
+ * exports
+ */
+
+module.exports = ValidatorError;
diff --git a/backend/node_modules/mongoose/lib/error/version.js b/backend/node_modules/mongoose/lib/error/version.js
new file mode 100644
index 0000000..4eb8054
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/error/version.js
@@ -0,0 +1,38 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const MongooseError = require('./mongooseError');
+
+/**
+ * Version Error constructor.
+ *
+ * @param {Document} doc
+ * @param {Number} currentVersion
+ * @param {Array<String>} modifiedPaths
+ * @api private
+ */
+
+class VersionError extends MongooseError {
+
+  constructor(doc, currentVersion, modifiedPaths) {
+    const modifiedPathsStr = modifiedPaths.join(', ');
+    super('No matching document found for id "' + doc._doc._id +
+      '" version ' + currentVersion + ' modifiedPaths "' + modifiedPathsStr + '"');
+    this.version = currentVersion;
+    this.modifiedPaths = modifiedPaths;
+  }
+}
+
+
+Object.defineProperty(VersionError.prototype, 'name', {
+  value: 'VersionError'
+});
+
+/*!
+ * exports
+ */
+
+module.exports = VersionError;
diff --git a/backend/node_modules/mongoose/lib/helpers/aggregate/prepareDiscriminatorPipeline.js b/backend/node_modules/mongoose/lib/helpers/aggregate/prepareDiscriminatorPipeline.js
new file mode 100644
index 0000000..f720cfb
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/aggregate/prepareDiscriminatorPipeline.js
@@ -0,0 +1,39 @@
+'use strict';
+
+module.exports = function prepareDiscriminatorPipeline(pipeline, schema, prefix) {
+  const discriminatorMapping = schema && schema.discriminatorMapping;
+  prefix = prefix || '';
+
+  if (discriminatorMapping && !discriminatorMapping.isRoot) {
+    const originalPipeline = pipeline;
+    const filterKey = (prefix.length > 0 ? prefix + '.' : prefix) + discriminatorMapping.key;
+    const discriminatorValue = discriminatorMapping.value;
+
+    // If the first pipeline stage is a match and it doesn't specify a `__t`
+    // key, add the discriminator key to it. This allows for potential
+    // aggregation query optimizations not to be disturbed by this feature.
+    if (originalPipeline[0] != null &&
+        originalPipeline[0].$match &&
+        (originalPipeline[0].$match[filterKey] === undefined || originalPipeline[0].$match[filterKey] === discriminatorValue)) {
+      originalPipeline[0].$match[filterKey] = discriminatorValue;
+      // `originalPipeline` is a ref, so there's no need for
+      // aggregate._pipeline = originalPipeline
+    } else if (originalPipeline[0] != null && originalPipeline[0].$geoNear) {
+      originalPipeline[0].$geoNear.query =
+          originalPipeline[0].$geoNear.query || {};
+      originalPipeline[0].$geoNear.query[filterKey] = discriminatorValue;
+    } else if (originalPipeline[0] != null && originalPipeline[0].$search) {
+      if (originalPipeline[1] && originalPipeline[1].$match != null) {
+        originalPipeline[1].$match[filterKey] = originalPipeline[1].$match[filterKey] || discriminatorValue;
+      } else {
+        const match = {};
+        match[filterKey] = discriminatorValue;
+        originalPipeline.splice(1, 0, { $match: match });
+      }
+    } else {
+      const match = {};
+      match[filterKey] = discriminatorValue;
+      originalPipeline.unshift({ $match: match });
+    }
+  }
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/aggregate/stringifyFunctionOperators.js b/backend/node_modules/mongoose/lib/helpers/aggregate/stringifyFunctionOperators.js
new file mode 100644
index 0000000..1f5d1e3
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/aggregate/stringifyFunctionOperators.js
@@ -0,0 +1,50 @@
+'use strict';
+
+module.exports = function stringifyFunctionOperators(pipeline) {
+  if (!Array.isArray(pipeline)) {
+    return;
+  }
+
+  for (const stage of pipeline) {
+    if (stage == null) {
+      continue;
+    }
+
+    const canHaveAccumulator = stage.$group || stage.$bucket || stage.$bucketAuto;
+    if (canHaveAccumulator != null) {
+      for (const key of Object.keys(canHaveAccumulator)) {
+        handleAccumulator(canHaveAccumulator[key]);
+      }
+    }
+
+    const stageType = Object.keys(stage)[0];
+    if (stageType && typeof stage[stageType] === 'object') {
+      const stageOptions = stage[stageType];
+      for (const key of Object.keys(stageOptions)) {
+        if (stageOptions[key] != null &&
+            stageOptions[key].$function != null &&
+            typeof stageOptions[key].$function.body === 'function') {
+          stageOptions[key].$function.body = stageOptions[key].$function.body.toString();
+        }
+      }
+    }
+
+    if (stage.$facet != null) {
+      for (const key of Object.keys(stage.$facet)) {
+        stringifyFunctionOperators(stage.$facet[key]);
+      }
+    }
+  }
+};
+
+function handleAccumulator(operator) {
+  if (operator == null || operator.$accumulator == null) {
+    return;
+  }
+
+  for (const key of ['init', 'accumulate', 'merge', 'finalize']) {
+    if (typeof operator.$accumulator[key] === 'function') {
+      operator.$accumulator[key] = String(operator.$accumulator[key]);
+    }
+  }
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/arrayDepth.js b/backend/node_modules/mongoose/lib/helpers/arrayDepth.js
new file mode 100644
index 0000000..16b92c1
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/arrayDepth.js
@@ -0,0 +1,33 @@
+'use strict';
+
+module.exports = arrayDepth;
+
+function arrayDepth(arr) {
+  if (!Array.isArray(arr)) {
+    return { min: 0, max: 0, containsNonArrayItem: true };
+  }
+  if (arr.length === 0) {
+    return { min: 1, max: 1, containsNonArrayItem: false };
+  }
+  if (arr.length === 1 && !Array.isArray(arr[0])) {
+    return { min: 1, max: 1, containsNonArrayItem: false };
+  }
+
+  const res = arrayDepth(arr[0]);
+
+  for (let i = 1; i < arr.length; ++i) {
+    const _res = arrayDepth(arr[i]);
+    if (_res.min < res.min) {
+      res.min = _res.min;
+    }
+    if (_res.max > res.max) {
+      res.max = _res.max;
+    }
+    res.containsNonArrayItem = res.containsNonArrayItem || _res.containsNonArrayItem;
+  }
+
+  res.min = res.min + 1;
+  res.max = res.max + 1;
+
+  return res;
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/clone.js b/backend/node_modules/mongoose/lib/helpers/clone.js
new file mode 100644
index 0000000..a8dd587
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/clone.js
@@ -0,0 +1,195 @@
+'use strict';
+
+const Decimal = require('../types/decimal128');
+const ObjectId = require('../types/objectid');
+const specialProperties = require('./specialProperties');
+const isMongooseObject = require('./isMongooseObject');
+const getFunctionName = require('./getFunctionName');
+const isBsonType = require('./isBsonType');
+const isMongooseArray = require('../types/array/isMongooseArray').isMongooseArray;
+const isObject = require('./isObject');
+const isPOJO = require('./isPOJO');
+const symbols = require('./symbols');
+const trustedSymbol = require('./query/trusted').trustedSymbol;
+const BSON = require('bson');
+
+/**
+ * Object clone with Mongoose natives support.
+ *
+ * If options.minimize is true, creates a minimal data object. Empty objects and undefined values will not be cloned. This makes the data payload sent to MongoDB as small as possible.
+ *
+ * Functions and primitives are never cloned.
+ *
+ * @param {Object} obj the object to clone
+ * @param {Object} options
+ * @param {Boolean} isArrayChild true if cloning immediately underneath an array. Special case for minimize.
+ * @return {Object} the cloned object
+ * @api private
+ */
+
+function clone(obj, options, isArrayChild) {
+  if (obj == null) {
+    return obj;
+  }
+
+  if (isBsonType(obj, 'Double')) {
+    return new BSON.Double(obj.value);
+  }
+  if (typeof obj === 'number' || typeof obj === 'string' || typeof obj === 'boolean' || typeof obj === 'bigint') {
+    return obj;
+  }
+
+  if (Array.isArray(obj)) {
+    return cloneArray(isMongooseArray(obj) ? obj.__array : obj, options);
+  }
+
+  if (isMongooseObject(obj)) {
+    if (options) {
+      if (options.retainDocuments && obj.$__ != null) {
+        const clonedDoc = obj.$clone();
+        if (obj.__index != null) {
+          clonedDoc.__index = obj.__index;
+        }
+        if (obj.__parentArray != null) {
+          clonedDoc.__parentArray = obj.__parentArray;
+        }
+        clonedDoc.$__parent = obj.$__parent;
+        return clonedDoc;
+      }
+    }
+    const isSingleNested = obj.$isSingleNested;
+
+    if (isPOJO(obj) && obj.$__ != null && obj._doc != null) {
+      return obj._doc;
+    }
+
+    let ret;
+    if (options && options.json && typeof obj.toJSON === 'function') {
+      ret = obj.toJSON(options);
+    } else {
+      ret = obj.toObject(options);
+    }
+
+    if (options && options.minimize && !obj.constructor.$__required && isSingleNested && Object.keys(ret).length === 0) {
+      return undefined;
+    }
+
+    return ret;
+  }
+
+  const objConstructor = obj.constructor;
+
+  if (objConstructor) {
+    switch (getFunctionName(objConstructor)) {
+      case 'Object':
+        return cloneObject(obj, options, isArrayChild);
+      case 'Date':
+        return new objConstructor(+obj);
+      case 'RegExp':
+        return cloneRegExp(obj);
+      default:
+        // ignore
+        break;
+    }
+  }
+
+  if (isBsonType(obj, 'ObjectId')) {
+    if (options && options.flattenObjectIds) {
+      return obj.toJSON();
+    }
+    return new ObjectId(obj.id);
+  }
+
+  if (isBsonType(obj, 'Decimal128')) {
+    if (options && options.flattenDecimals) {
+      return obj.toJSON();
+    }
+    return Decimal.fromString(obj.toString());
+  }
+
+  // object created with Object.create(null)
+  if (!objConstructor && isObject(obj)) {
+    return cloneObject(obj, options, isArrayChild);
+  }
+
+  if (typeof obj === 'object' && obj[symbols.schemaTypeSymbol]) {
+    return obj.clone();
+  }
+
+  // If we're cloning this object to go into a MongoDB command,
+  // and there's a `toBSON()` function, assume this object will be
+  // stored as a primitive in MongoDB and doesn't need to be cloned.
+  if (options && options.bson && typeof obj.toBSON === 'function') {
+    return obj;
+  }
+
+  if (typeof obj.valueOf === 'function') {
+    return obj.valueOf();
+  }
+
+  return cloneObject(obj, options, isArrayChild);
+}
+module.exports = clone;
+
+/*!
+ * ignore
+ */
+
+function cloneObject(obj, options, isArrayChild) {
+  const minimize = options && options.minimize;
+  const omitUndefined = options && options.omitUndefined;
+  const seen = options && options._seen;
+  const ret = {};
+  let hasKeys;
+
+  if (seen && seen.has(obj)) {
+    return seen.get(obj);
+  } else if (seen) {
+    seen.set(obj, ret);
+  }
+  if (trustedSymbol in obj) {
+    ret[trustedSymbol] = obj[trustedSymbol];
+  }
+
+  const keys = Object.keys(obj);
+  const len = keys.length;
+
+  for (let i = 0; i < len; ++i) {
+    const key = keys[i];
+    if (specialProperties.has(key)) {
+      continue;
+    }
+
+    // Don't pass `isArrayChild` down
+    const val = clone(obj[key], options, false);
+
+    if ((minimize === false || omitUndefined) && typeof val === 'undefined') {
+      delete ret[key];
+    } else if (minimize !== true || (typeof val !== 'undefined')) {
+      hasKeys || (hasKeys = true);
+      ret[key] = val;
+    }
+  }
+
+  return minimize && !isArrayChild ? hasKeys && ret : ret;
+}
+
+function cloneArray(arr, options) {
+  let i = 0;
+  const len = arr.length;
+  const ret = new Array(len);
+  for (i = 0; i < len; ++i) {
+    ret[i] = clone(arr[i], options, true);
+  }
+
+  return ret;
+}
+
+function cloneRegExp(regexp) {
+  const ret = new RegExp(regexp.source, regexp.flags);
+
+  if (ret.lastIndex !== regexp.lastIndex) {
+    ret.lastIndex = regexp.lastIndex;
+  }
+  return ret;
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/common.js b/backend/node_modules/mongoose/lib/helpers/common.js
new file mode 100644
index 0000000..5a1bee1
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/common.js
@@ -0,0 +1,127 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const Binary = require('bson').Binary;
+const isBsonType = require('./isBsonType');
+const isMongooseObject = require('./isMongooseObject');
+const MongooseError = require('../error');
+const util = require('util');
+
+exports.flatten = flatten;
+exports.modifiedPaths = modifiedPaths;
+
+/*!
+ * ignore
+ */
+
+function flatten(update, path, options, schema) {
+  let keys;
+  if (update && isMongooseObject(update) && !Buffer.isBuffer(update)) {
+    keys = Object.keys(update.toObject({ transform: false, virtuals: false }) || {});
+  } else {
+    keys = Object.keys(update || {});
+  }
+
+  const numKeys = keys.length;
+  const result = {};
+  path = path ? path + '.' : '';
+
+  for (let i = 0; i < numKeys; ++i) {
+    const key = keys[i];
+    const val = update[key];
+    result[path + key] = val;
+
+    // Avoid going into mixed paths if schema is specified
+    const keySchema = schema && schema.path && schema.path(path + key);
+    const isNested = schema && schema.nested && schema.nested[path + key];
+    if (keySchema && keySchema.instance === 'Mixed') continue;
+
+    if (shouldFlatten(val)) {
+      if (options && options.skipArrays && Array.isArray(val)) {
+        continue;
+      }
+      const flat = flatten(val, path + key, options, schema);
+      for (const k in flat) {
+        result[k] = flat[k];
+      }
+      if (Array.isArray(val)) {
+        result[path + key] = val;
+      }
+    }
+
+    if (isNested) {
+      const paths = Object.keys(schema.paths);
+      for (const p of paths) {
+        if (p.startsWith(path + key + '.') && !result.hasOwnProperty(p)) {
+          result[p] = void 0;
+        }
+      }
+    }
+  }
+
+  return result;
+}
+
+/*!
+ * ignore
+ */
+
+function modifiedPaths(update, path, result, recursion = null) {
+  if (update == null || typeof update !== 'object') {
+    return;
+  }
+
+  if (recursion == null) {
+    recursion = {
+      raw: { update, path },
+      trace: new WeakSet()
+    };
+  }
+
+  if (recursion.trace.has(update)) {
+    throw new MongooseError(`a circular reference in the update value, updateValue:
+${util.inspect(recursion.raw.update, { showHidden: false, depth: 1 })}
+updatePath: '${recursion.raw.path}'`);
+  }
+  recursion.trace.add(update);
+
+  const keys = Object.keys(update || {});
+  const numKeys = keys.length;
+  result = result || {};
+  path = path ? path + '.' : '';
+
+  for (let i = 0; i < numKeys; ++i) {
+    const key = keys[i];
+    let val = update[key];
+
+    const _path = path + key;
+    result[_path] = true;
+    if (!Buffer.isBuffer(val) && isMongooseObject(val)) {
+      val = val.toObject({ transform: false, virtuals: false });
+    }
+    if (shouldFlatten(val)) {
+      modifiedPaths(val, path + key, result, recursion);
+    }
+  }
+  recursion.trace.delete(update);
+
+  return result;
+}
+
+/*!
+ * ignore
+ */
+
+function shouldFlatten(val) {
+  return val &&
+      typeof val === 'object' &&
+      !(val instanceof Date) &&
+      !isBsonType(val, 'ObjectId') &&
+      (!Array.isArray(val) || val.length !== 0) &&
+      !(val instanceof Buffer) &&
+      !isBsonType(val, 'Decimal128') &&
+      !(val instanceof Binary);
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/cursor/eachAsync.js b/backend/node_modules/mongoose/lib/helpers/cursor/eachAsync.js
new file mode 100644
index 0000000..c52c6d5
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/cursor/eachAsync.js
@@ -0,0 +1,225 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const EachAsyncMultiError = require('../../error/eachAsyncMultiError');
+const immediate = require('../immediate');
+
+/**
+ * Execute `fn` for every document in the cursor. If `fn` returns a promise,
+ * will wait for the promise to resolve before iterating on to the next one.
+ * Returns a promise that resolves when done.
+ *
+ * @param {Function} next the thunk to call to get the next document
+ * @param {Function} fn
+ * @param {Object} options
+ * @param {Number} [options.batchSize=null] if set, Mongoose will call `fn` with an array of at most `batchSize` documents, instead of a single document
+ * @param {Number} [options.parallel=1] maximum number of `fn` calls that Mongoose will run in parallel
+ * @param {AbortSignal} [options.signal] allow cancelling this eachAsync(). Once the abort signal is fired, `eachAsync()` will immediately fulfill the returned promise (or call the callback) and not fetch any more documents.
+ * @return {Promise}
+ * @api public
+ * @method eachAsync
+ */
+
+module.exports = async function eachAsync(next, fn, options) {
+  const parallel = options.parallel || 1;
+  const batchSize = options.batchSize;
+  const signal = options.signal;
+  const continueOnError = options.continueOnError;
+  const aggregatedErrors = [];
+  const enqueue = asyncQueue();
+
+  let aborted = false;
+
+  return new Promise((resolve, reject) => {
+    if (signal != null) {
+      if (signal.aborted) {
+        return resolve(null);
+      }
+
+      signal.addEventListener('abort', () => {
+        aborted = true;
+        return resolve(null);
+      }, { once: true });
+    }
+
+    if (batchSize != null) {
+      if (typeof batchSize !== 'number') {
+        throw new TypeError('batchSize must be a number');
+      } else if (!Number.isInteger(batchSize)) {
+        throw new TypeError('batchSize must be an integer');
+      } else if (batchSize < 1) {
+        throw new TypeError('batchSize must be at least 1');
+      }
+    }
+
+    iterate((err, res) => {
+      if (err != null) {
+        return reject(err);
+      }
+      resolve(res);
+    });
+  });
+
+  function iterate(finalCallback) {
+    let handleResultsInProgress = 0;
+    let currentDocumentIndex = 0;
+
+    let error = null;
+    for (let i = 0; i < parallel; ++i) {
+      enqueue(createFetch());
+    }
+
+    function createFetch() {
+      let documentsBatch = [];
+      let drained = false;
+
+      return fetch;
+
+      function fetch(done) {
+        if (drained || aborted) {
+          return done();
+        } else if (error) {
+          return done();
+        }
+
+        next(function(err, doc) {
+          if (error != null) {
+            return done();
+          }
+          if (err != null) {
+            if (err.name === 'MongoCursorExhaustedError') {
+              // We may end up calling `next()` multiple times on an exhausted
+              // cursor, which leads to an error. In case cursor is exhausted,
+              // just treat it as if the cursor returned no document, which is
+              // how a cursor indicates it is exhausted.
+              doc = null;
+            } else if (continueOnError) {
+              aggregatedErrors.push(err);
+            } else {
+              error = err;
+              finalCallback(err);
+              return done();
+            }
+          }
+          if (doc == null) {
+            drained = true;
+            if (handleResultsInProgress <= 0) {
+              const finalErr = continueOnError ?
+                createEachAsyncMultiError(aggregatedErrors) :
+                error;
+
+              finalCallback(finalErr);
+            } else if (batchSize && documentsBatch.length) {
+              handleNextResult(documentsBatch, currentDocumentIndex++, handleNextResultCallBack);
+            }
+            return done();
+          }
+
+          ++handleResultsInProgress;
+
+          // Kick off the subsequent `next()` before handling the result, but
+          // make sure we know that we still have a result to handle re: #8422
+          immediate(() => done());
+
+          if (batchSize) {
+            documentsBatch.push(doc);
+          }
+
+          // If the current documents size is less than the provided batch size don't process the documents yet
+          if (batchSize && documentsBatch.length !== batchSize) {
+            immediate(() => enqueue(fetch));
+            return;
+          }
+
+          const docsToProcess = batchSize ? documentsBatch : doc;
+
+          function handleNextResultCallBack(err) {
+            if (batchSize) {
+              handleResultsInProgress -= documentsBatch.length;
+              documentsBatch = [];
+            } else {
+              --handleResultsInProgress;
+            }
+            if (err != null) {
+              if (continueOnError) {
+                aggregatedErrors.push(err);
+              } else {
+                error = err;
+                return finalCallback(err);
+              }
+            }
+            if ((drained || aborted) && handleResultsInProgress <= 0) {
+              const finalErr = continueOnError ?
+                createEachAsyncMultiError(aggregatedErrors) :
+                error;
+              return finalCallback(finalErr);
+            }
+
+            immediate(() => enqueue(fetch));
+          }
+
+          handleNextResult(docsToProcess, currentDocumentIndex++, handleNextResultCallBack);
+        });
+      }
+    }
+  }
+
+  function handleNextResult(doc, i, callback) {
+    let maybePromise;
+    try {
+      maybePromise = fn(doc, i);
+    } catch (err) {
+      return callback(err);
+    }
+    if (maybePromise && typeof maybePromise.then === 'function') {
+      maybePromise.then(
+        function() { callback(null); },
+        function(error) {
+          callback(error || new Error('`eachAsync()` promise rejected without error'));
+        });
+    } else {
+      callback(null);
+    }
+  }
+};
+
+// `next()` can only execute one at a time, so make sure we always execute
+// `next()` in series, while still allowing multiple `fn()` instances to run
+// in parallel.
+function asyncQueue() {
+  const _queue = [];
+  let inProgress = null;
+  let id = 0;
+
+  return function enqueue(fn) {
+    if (
+      inProgress === null &&
+      _queue.length === 0
+    ) {
+      inProgress = id++;
+      return fn(_step);
+    }
+    _queue.push(fn);
+  };
+
+  function _step() {
+    if (_queue.length !== 0) {
+      inProgress = id++;
+      const fn = _queue.shift();
+      fn(_step);
+    } else {
+      inProgress = null;
+    }
+  }
+}
+
+function createEachAsyncMultiError(aggregatedErrors) {
+  if (aggregatedErrors.length === 0) {
+    return null;
+  }
+
+  return new EachAsyncMultiError(aggregatedErrors);
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/discriminator/applyEmbeddedDiscriminators.js b/backend/node_modules/mongoose/lib/helpers/discriminator/applyEmbeddedDiscriminators.js
new file mode 100644
index 0000000..01593a9
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/discriminator/applyEmbeddedDiscriminators.js
@@ -0,0 +1,36 @@
+'use strict';
+
+module.exports = applyEmbeddedDiscriminators;
+
+function applyEmbeddedDiscriminators(schema, seen = new WeakSet(), overwriteExisting = false) {
+  if (seen.has(schema)) {
+    return;
+  }
+  seen.add(schema);
+  for (const path of Object.keys(schema.paths)) {
+    const schemaType = schema.paths[path];
+    if (!schemaType.schema) {
+      continue;
+    }
+    applyEmbeddedDiscriminators(schemaType.schema, seen);
+    if (!schemaType.schema._applyDiscriminators) {
+      continue;
+    }
+    if (schemaType._appliedDiscriminators && !overwriteExisting) {
+      continue;
+    }
+    for (const discriminatorKey of schemaType.schema._applyDiscriminators.keys()) {
+      const {
+        schema: discriminatorSchema,
+        options
+      } = schemaType.schema._applyDiscriminators.get(discriminatorKey);
+      applyEmbeddedDiscriminators(discriminatorSchema, seen);
+      schemaType.discriminator(
+        discriminatorKey,
+        discriminatorSchema,
+        overwriteExisting ? { ...options, overwriteExisting: true } : options
+      );
+    }
+    schemaType._appliedDiscriminators = true;
+  }
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/discriminator/areDiscriminatorValuesEqual.js b/backend/node_modules/mongoose/lib/helpers/discriminator/areDiscriminatorValuesEqual.js
new file mode 100644
index 0000000..1b81a48
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/discriminator/areDiscriminatorValuesEqual.js
@@ -0,0 +1,16 @@
+'use strict';
+
+const isBsonType = require('../isBsonType');
+
+module.exports = function areDiscriminatorValuesEqual(a, b) {
+  if (typeof a === 'string' && typeof b === 'string') {
+    return a === b;
+  }
+  if (typeof a === 'number' && typeof b === 'number') {
+    return a === b;
+  }
+  if (isBsonType(a, 'ObjectId') && isBsonType(b, 'ObjectId')) {
+    return a.toString() === b.toString();
+  }
+  return false;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/discriminator/checkEmbeddedDiscriminatorKeyProjection.js b/backend/node_modules/mongoose/lib/helpers/discriminator/checkEmbeddedDiscriminatorKeyProjection.js
new file mode 100644
index 0000000..4eb56de
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/discriminator/checkEmbeddedDiscriminatorKeyProjection.js
@@ -0,0 +1,12 @@
+'use strict';
+
+module.exports = function checkEmbeddedDiscriminatorKeyProjection(userProjection, path, schema, selected, addedPaths) {
+  const userProjectedInPath = Object.keys(userProjection).
+    reduce((cur, key) => cur || key.startsWith(path + '.'), false);
+  const _discriminatorKey = path + '.' + schema.options.discriminatorKey;
+  if (!userProjectedInPath &&
+      addedPaths.length === 1 &&
+      addedPaths[0] === _discriminatorKey) {
+    selected.splice(selected.indexOf(_discriminatorKey), 1);
+  }
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/discriminator/getConstructor.js b/backend/node_modules/mongoose/lib/helpers/discriminator/getConstructor.js
new file mode 100644
index 0000000..17583e2
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/discriminator/getConstructor.js
@@ -0,0 +1,29 @@
+'use strict';
+
+const getDiscriminatorByValue = require('./getDiscriminatorByValue');
+
+/**
+ * Find the correct constructor, taking into account discriminators
+ * @api private
+ */
+
+module.exports = function getConstructor(Constructor, value, defaultDiscriminatorValue) {
+  const discriminatorKey = Constructor.schema.options.discriminatorKey;
+  let discriminatorValue = (value != null && value[discriminatorKey]);
+  if (discriminatorValue == null) {
+    discriminatorValue = defaultDiscriminatorValue;
+  }
+  if (Constructor.discriminators &&
+      discriminatorValue != null) {
+    if (Constructor.discriminators[discriminatorValue]) {
+      Constructor = Constructor.discriminators[discriminatorValue];
+    } else {
+      const constructorByValue = getDiscriminatorByValue(Constructor.discriminators, discriminatorValue);
+      if (constructorByValue) {
+        Constructor = constructorByValue;
+      }
+    }
+  }
+
+  return Constructor;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/discriminator/getDiscriminatorByValue.js b/backend/node_modules/mongoose/lib/helpers/discriminator/getDiscriminatorByValue.js
new file mode 100644
index 0000000..af7605b
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/discriminator/getDiscriminatorByValue.js
@@ -0,0 +1,28 @@
+'use strict';
+
+const areDiscriminatorValuesEqual = require('./areDiscriminatorValuesEqual');
+
+/**
+ * returns discriminator by discriminatorMapping.value
+ *
+ * @param {Object} discriminators
+ * @param {string} value
+ * @api private
+ */
+
+module.exports = function getDiscriminatorByValue(discriminators, value) {
+  if (discriminators == null) {
+    return null;
+  }
+  for (const name of Object.keys(discriminators)) {
+    const it = discriminators[name];
+    if (
+      it.schema &&
+      it.schema.discriminatorMapping &&
+      areDiscriminatorValuesEqual(it.schema.discriminatorMapping.value, value)
+    ) {
+      return it;
+    }
+  }
+  return null;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/discriminator/getSchemaDiscriminatorByValue.js b/backend/node_modules/mongoose/lib/helpers/discriminator/getSchemaDiscriminatorByValue.js
new file mode 100644
index 0000000..a04e17c
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/discriminator/getSchemaDiscriminatorByValue.js
@@ -0,0 +1,27 @@
+'use strict';
+
+const areDiscriminatorValuesEqual = require('./areDiscriminatorValuesEqual');
+
+/**
+ * returns discriminator by discriminatorMapping.value
+ *
+ * @param {Schema} schema
+ * @param {string} value
+ * @api private
+ */
+
+module.exports = function getSchemaDiscriminatorByValue(schema, value) {
+  if (schema == null || schema.discriminators == null) {
+    return null;
+  }
+  for (const key of Object.keys(schema.discriminators)) {
+    const discriminatorSchema = schema.discriminators[key];
+    if (discriminatorSchema.discriminatorMapping == null) {
+      continue;
+    }
+    if (areDiscriminatorValuesEqual(discriminatorSchema.discriminatorMapping.value, value)) {
+      return discriminatorSchema;
+    }
+  }
+  return null;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/discriminator/mergeDiscriminatorSchema.js b/backend/node_modules/mongoose/lib/helpers/discriminator/mergeDiscriminatorSchema.js
new file mode 100644
index 0000000..b48d5c4
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/discriminator/mergeDiscriminatorSchema.js
@@ -0,0 +1,81 @@
+'use strict';
+const schemaMerge = require('../schema/merge');
+const specialProperties = require('../../helpers/specialProperties');
+const isBsonType = require('../../helpers/isBsonType');
+const ObjectId = require('../../types/objectid');
+const isObject = require('../../helpers/isObject');
+/**
+ * Merges `from` into `to` without overwriting existing properties.
+ *
+ * @param {Object} to
+ * @param {Object} from
+ * @param {String} [path]
+ * @api private
+ */
+
+module.exports = function mergeDiscriminatorSchema(to, from, path, seen) {
+  const keys = Object.keys(from);
+  let i = 0;
+  const len = keys.length;
+  let key;
+
+  path = path || '';
+  seen = seen || new WeakSet();
+
+  if (seen.has(from)) {
+    return;
+  }
+  seen.add(from);
+
+  while (i < len) {
+    key = keys[i++];
+    if (!path) {
+      if (key === 'discriminators' ||
+        key === 'base' ||
+        key === '_applyDiscriminators' ||
+        key === '_userProvidedOptions' ||
+        key === 'options' ||
+        key === 'tree') {
+        continue;
+      }
+    }
+    if (path === 'tree' && from != null && from.instanceOfSchema) {
+      continue;
+    }
+    if (specialProperties.has(key)) {
+      continue;
+    }
+    if (to[key] == null) {
+      to[key] = from[key];
+    } else if (isObject(from[key])) {
+      if (!isObject(to[key])) {
+        to[key] = {};
+      }
+      if (from[key] != null) {
+        // Skip merging schemas if we're creating a discriminator schema and
+        // base schema has a given path as a single nested but discriminator schema
+        // has the path as a document array, or vice versa (gh-9534)
+        if ((from[key].$isSingleNested && to[key].$isMongooseDocumentArray) ||
+              (from[key].$isMongooseDocumentArray && to[key].$isSingleNested) ||
+              (from[key].$isMongooseDocumentArrayElement && to[key].$isMongooseDocumentArrayElement)) {
+          continue;
+        } else if (from[key].instanceOfSchema) {
+          if (to[key].instanceOfSchema) {
+            schemaMerge(to[key], from[key].clone(), true);
+          } else {
+            to[key] = from[key].clone();
+          }
+          continue;
+        } else if (isBsonType(from[key], 'ObjectId')) {
+          to[key] = new ObjectId(from[key]);
+          continue;
+        }
+      }
+      mergeDiscriminatorSchema(to[key], from[key], path ? path + '.' + key : key, seen);
+    }
+  }
+
+  if (from != null && from.instanceOfSchema) {
+    to.tree = Object.assign({}, from.tree, to.tree);
+  }
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/document/applyDefaults.js b/backend/node_modules/mongoose/lib/helpers/document/applyDefaults.js
new file mode 100644
index 0000000..7d1b5b0
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/document/applyDefaults.js
@@ -0,0 +1,132 @@
+'use strict';
+
+const isNestedProjection = require('../projection/isNestedProjection');
+
+module.exports = function applyDefaults(doc, fields, exclude, hasIncludedChildren, isBeforeSetters, pathsToSkip, options) {
+  const paths = Object.keys(doc.$__schema.paths);
+  const plen = paths.length;
+  const skipParentChangeTracking = options && options.skipParentChangeTracking;
+
+  for (let i = 0; i < plen; ++i) {
+    let def;
+    let curPath = '';
+    const p = paths[i];
+
+    if (p === '_id' && doc.$__.skipId) {
+      continue;
+    }
+
+    const type = doc.$__schema.paths[p];
+    const path = type.splitPath();
+    const len = path.length;
+    if (path[len - 1] === '$*') {
+      continue;
+    }
+    let included = false;
+    let doc_ = doc._doc;
+    for (let j = 0; j < len; ++j) {
+      if (doc_ == null) {
+        break;
+      }
+
+      const piece = path[j];
+      curPath += (!curPath.length ? '' : '.') + piece;
+
+      if (exclude === true) {
+        if (curPath in fields) {
+          break;
+        }
+      } else if (exclude === false && fields && !included) {
+        const hasSubpaths = type.$isSingleNested || type.$isMongooseDocumentArray;
+        if ((curPath in fields && !isNestedProjection(fields[curPath])) || (j === len - 1 && hasSubpaths && hasIncludedChildren != null && hasIncludedChildren[curPath])) {
+          included = true;
+        } else if (hasIncludedChildren != null && !hasIncludedChildren[curPath]) {
+          break;
+        }
+      }
+
+      if (j === len - 1) {
+        if (doc_[piece] !== void 0) {
+          break;
+        }
+
+        if (isBeforeSetters != null) {
+          if (typeof type.defaultValue === 'function') {
+            if (!type.defaultValue.$runBeforeSetters && isBeforeSetters) {
+              break;
+            }
+            if (type.defaultValue.$runBeforeSetters && !isBeforeSetters) {
+              break;
+            }
+          } else if (!isBeforeSetters) {
+            // Non-function defaults should always run **before** setters
+            continue;
+          }
+        }
+
+        if (pathsToSkip && pathsToSkip[curPath]) {
+          break;
+        }
+
+        if (fields && exclude !== null) {
+          if (exclude === true) {
+            // apply defaults to all non-excluded fields
+            if (p in fields) {
+              continue;
+            }
+
+            try {
+              def = type.getDefault(doc, false);
+            } catch (err) {
+              doc.invalidate(p, err);
+              break;
+            }
+
+            if (typeof def !== 'undefined') {
+              doc_[piece] = def;
+              applyChangeTracking(doc, p, skipParentChangeTracking);
+            }
+          } else if (included) {
+            // selected field
+            try {
+              def = type.getDefault(doc, false);
+            } catch (err) {
+              doc.invalidate(p, err);
+              break;
+            }
+
+            if (typeof def !== 'undefined') {
+              doc_[piece] = def;
+              applyChangeTracking(doc, p, skipParentChangeTracking);
+            }
+          }
+        } else {
+          try {
+            def = type.getDefault(doc, false);
+          } catch (err) {
+            doc.invalidate(p, err);
+            break;
+          }
+
+          if (typeof def !== 'undefined') {
+            doc_[piece] = def;
+            applyChangeTracking(doc, p, skipParentChangeTracking);
+          }
+        }
+      } else {
+        doc_ = doc_[piece];
+      }
+    }
+  }
+};
+
+/*!
+ * ignore
+ */
+
+function applyChangeTracking(doc, fullPath, skipParentChangeTracking) {
+  doc.$__.activePaths.default(fullPath);
+  if (!skipParentChangeTracking && doc.$isSubdocument && doc.$isSingleNested && doc.$parent() != null) {
+    doc.$parent().$__.activePaths.default(doc.$__pathRelativeToParent(fullPath));
+  }
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/document/applyTimestamps.js b/backend/node_modules/mongoose/lib/helpers/document/applyTimestamps.js
new file mode 100644
index 0000000..425e144
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/document/applyTimestamps.js
@@ -0,0 +1,105 @@
+'use strict';
+
+const handleTimestampOption = require('../schema/handleTimestampOption');
+const mpath = require('mpath');
+
+module.exports = applyTimestamps;
+
+/**
+ * Apply a given schema's timestamps to the given POJO
+ *
+ * @param {Schema} schema
+ * @param {Object} obj
+ * @param {Object} [options]
+ * @param {Boolean} [options.isUpdate=false] if true, treat this as an update: just set updatedAt, skip setting createdAt. If false, set both createdAt and updatedAt
+ * @param {Function} [options.currentTime] if set, Mongoose will call this function to get the current time.
+ */
+
+function applyTimestamps(schema, obj, options) {
+  if (obj == null) {
+    return obj;
+  }
+
+  applyTimestampsToChildren(schema, obj, options);
+  return applyTimestampsToDoc(schema, obj, options);
+}
+
+/**
+ * Apply timestamps to any subdocuments
+ *
+ * @param {Schema} schema subdocument schema
+ * @param {Object} res subdocument
+ * @param {Object} [options]
+ * @param {Boolean} [options.isUpdate=false] if true, treat this as an update: just set updatedAt, skip setting createdAt. If false, set both createdAt and updatedAt
+ * @param {Function} [options.currentTime] if set, Mongoose will call this function to get the current time.
+ */
+
+function applyTimestampsToChildren(schema, res, options) {
+  for (const childSchema of schema.childSchemas) {
+    const _path = childSchema.model.path;
+    const _schema = childSchema.schema;
+    if (!_path) {
+      continue;
+    }
+    const _obj = mpath.get(_path, res);
+    if (_obj == null || (Array.isArray(_obj) && _obj.flat(Infinity).length === 0)) {
+      continue;
+    }
+
+    applyTimestamps(_schema, _obj, options);
+  }
+}
+
+/**
+ * Apply timestamps to a given document. Does not apply timestamps to subdocuments: use `applyTimestampsToChildren` instead
+ *
+ * @param {Schema} schema
+ * @param {Object} obj
+ * @param {Object} [options]
+ * @param {Boolean} [options.isUpdate=false] if true, treat this as an update: just set updatedAt, skip setting createdAt. If false, set both createdAt and updatedAt
+ * @param {Function} [options.currentTime] if set, Mongoose will call this function to get the current time.
+ */
+
+function applyTimestampsToDoc(schema, obj, options) {
+  if (obj == null || typeof obj !== 'object') {
+    return;
+  }
+  if (Array.isArray(obj)) {
+    for (const el of obj) {
+      applyTimestampsToDoc(schema, el, options);
+    }
+    return;
+  }
+
+  if (schema.discriminators && Object.keys(schema.discriminators).length > 0) {
+    for (const discriminatorKey of Object.keys(schema.discriminators)) {
+      const discriminator = schema.discriminators[discriminatorKey];
+      const key = discriminator.discriminatorMapping.key;
+      const value = discriminator.discriminatorMapping.value;
+      if (obj[key] == value) {
+        schema = discriminator;
+        break;
+      }
+    }
+  }
+
+  const createdAt = handleTimestampOption(schema.options.timestamps, 'createdAt');
+  const updatedAt = handleTimestampOption(schema.options.timestamps, 'updatedAt');
+  const currentTime = options?.currentTime;
+
+  let ts = null;
+  if (currentTime != null) {
+    ts = currentTime();
+  } else if (schema.base?.now) {
+    ts = schema.base.now();
+  } else {
+    ts = new Date();
+  }
+
+  if (createdAt && obj[createdAt] == null && !options?.isUpdate) {
+    obj[createdAt] = ts;
+  }
+  if (updatedAt) {
+    obj[updatedAt] = ts;
+  }
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/document/applyVirtuals.js b/backend/node_modules/mongoose/lib/helpers/document/applyVirtuals.js
new file mode 100644
index 0000000..5fbe7ca
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/document/applyVirtuals.js
@@ -0,0 +1,146 @@
+'use strict';
+
+const mpath = require('mpath');
+
+module.exports = applyVirtuals;
+
+/**
+ * Apply a given schema's virtuals to a given POJO
+ *
+ * @param {Schema} schema
+ * @param {Object} obj
+ * @param {Array<string>} [virtuals] optional whitelist of virtuals to apply
+ * @returns
+ */
+
+function applyVirtuals(schema, obj, virtuals) {
+  if (obj == null) {
+    return obj;
+  }
+
+  let virtualsForChildren = virtuals;
+  let toApply = null;
+
+  if (Array.isArray(virtuals)) {
+    virtualsForChildren = [];
+    toApply = [];
+    for (const virtual of virtuals) {
+      if (virtual.length === 1) {
+        toApply.push(virtual[0]);
+      } else {
+        virtualsForChildren.push(virtual);
+      }
+    }
+  }
+
+  applyVirtualsToChildren(schema, obj, virtualsForChildren);
+  return applyVirtualsToDoc(schema, obj, toApply);
+}
+
+/**
+ * Apply virtuals to any subdocuments
+ *
+ * @param {Schema} schema subdocument schema
+ * @param {Object} res subdocument
+ * @param {Array<String>} [virtuals] optional whitelist of virtuals to apply
+ */
+
+function applyVirtualsToChildren(schema, res, virtuals) {
+  let attachedVirtuals = false;
+  for (const childSchema of schema.childSchemas) {
+    const _path = childSchema.model.path;
+    const _schema = childSchema.schema;
+    if (!_path) {
+      continue;
+    }
+    const _obj = mpath.get(_path, res);
+    if (_obj == null || (Array.isArray(_obj) && _obj.flat(Infinity).length === 0)) {
+      continue;
+    }
+
+    let virtualsForChild = null;
+    if (Array.isArray(virtuals)) {
+      virtualsForChild = [];
+      for (const virtual of virtuals) {
+        if (virtual[0] == _path) {
+          virtualsForChild.push(virtual.slice(1));
+        }
+      }
+
+      if (virtualsForChild.length === 0) {
+        continue;
+      }
+    }
+
+    applyVirtuals(_schema, _obj, virtualsForChild);
+    attachedVirtuals = true;
+  }
+
+  if (virtuals && virtuals.length && !attachedVirtuals) {
+    applyVirtualsToDoc(schema, res, virtuals);
+  }
+}
+
+/**
+ * Apply virtuals to a given document. Does not apply virtuals to subdocuments: use `applyVirtualsToChildren` instead
+ *
+ * @param {Schema} schema
+ * @param {Object} doc
+ * @param {Array<String>} [virtuals] optional whitelist of virtuals to apply
+ * @returns
+ */
+
+function applyVirtualsToDoc(schema, obj, virtuals) {
+  if (obj == null || typeof obj !== 'object') {
+    return;
+  }
+  if (Array.isArray(obj)) {
+    for (const el of obj) {
+      applyVirtualsToDoc(schema, el, virtuals);
+    }
+    return;
+  }
+
+  if (schema.discriminators && Object.keys(schema.discriminators).length > 0) {
+    for (const discriminatorKey of Object.keys(schema.discriminators)) {
+      const discriminator = schema.discriminators[discriminatorKey];
+      const key = discriminator.discriminatorMapping.key;
+      const value = discriminator.discriminatorMapping.value;
+      if (obj[key] == value) {
+        schema = discriminator;
+        break;
+      }
+    }
+  }
+
+  if (virtuals == null) {
+    virtuals = Object.keys(schema.virtuals);
+  }
+  for (const virtual of virtuals) {
+    if (schema.virtuals[virtual] == null) {
+      continue;
+    }
+    const virtualType = schema.virtuals[virtual];
+    const sp = Array.isArray(virtual)
+      ? virtual
+      : virtual.indexOf('.') === -1
+        ? [virtual]
+        : virtual.split('.');
+    let cur = obj;
+    for (let i = 0; i < sp.length - 1; ++i) {
+      cur[sp[i]] = sp[i] in cur ? cur[sp[i]] : {};
+      cur = cur[sp[i]];
+    }
+    let val = virtualType.applyGetters(cur[sp[sp.length - 1]], obj);
+    const isPopulateVirtual =
+      virtualType.options && (virtualType.options.ref || virtualType.options.refPath);
+    if (isPopulateVirtual && val === undefined) {
+      if (virtualType.options.justOne) {
+        val = null;
+      } else {
+        val = [];
+      }
+    }
+    cur[sp[sp.length - 1]] = val;
+  }
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/document/cleanModifiedSubpaths.js b/backend/node_modules/mongoose/lib/helpers/document/cleanModifiedSubpaths.js
new file mode 100644
index 0000000..c12b5e2
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/document/cleanModifiedSubpaths.js
@@ -0,0 +1,45 @@
+'use strict';
+
+/*!
+ * ignore
+ */
+
+module.exports = function cleanModifiedSubpaths(doc, path, options) {
+  options = options || {};
+  const skipDocArrays = options.skipDocArrays;
+
+  let deleted = 0;
+  if (!doc) {
+    return deleted;
+  }
+
+  for (const modifiedPath of Object.keys(doc.$__.activePaths.getStatePaths('modify'))) {
+    if (skipDocArrays) {
+      const schemaType = doc.$__schema.path(modifiedPath);
+      if (schemaType && schemaType.$isMongooseDocumentArray) {
+        continue;
+      }
+    }
+    if (modifiedPath.startsWith(path + '.')) {
+      doc.$__.activePaths.clearPath(modifiedPath);
+      ++deleted;
+
+      if (doc.$isSubdocument) {
+        cleanParent(doc, modifiedPath);
+      }
+    }
+  }
+  return deleted;
+};
+
+function cleanParent(doc, path, seen = new Set()) {
+  if (seen.has(doc)) {
+    throw new Error('Infinite subdocument loop: subdoc with _id ' + doc._id + ' is a parent of itself');
+  }
+  const parent = doc.$parent();
+  const newPath = doc.$__pathRelativeToParent(void 0, false) + '.' + path;
+  parent.$__.activePaths.clearPath(newPath);
+  if (parent.$isSubdocument) {
+    cleanParent(parent, newPath, seen);
+  }
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/document/compile.js b/backend/node_modules/mongoose/lib/helpers/document/compile.js
new file mode 100644
index 0000000..51721e7
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/document/compile.js
@@ -0,0 +1,238 @@
+'use strict';
+
+const clone = require('../../helpers/clone');
+const documentSchemaSymbol = require('../../helpers/symbols').documentSchemaSymbol;
+const internalToObjectOptions = require('../../options').internalToObjectOptions;
+const utils = require('../../utils');
+
+let Document;
+const getSymbol = require('../../helpers/symbols').getSymbol;
+const scopeSymbol = require('../../helpers/symbols').scopeSymbol;
+
+const isPOJO = utils.isPOJO;
+
+/*!
+ * exports
+ */
+
+exports.compile = compile;
+exports.defineKey = defineKey;
+
+const _isEmptyOptions = Object.freeze({
+  minimize: true,
+  virtuals: false,
+  getters: false,
+  transform: false
+});
+
+const noDottedPathGetOptions = Object.freeze({
+  noDottedPath: true
+});
+
+/**
+ * Compiles schemas.
+ * @param {Object} tree
+ * @param {Any} proto
+ * @param {String} prefix
+ * @param {Object} options
+ * @api private
+ */
+
+function compile(tree, proto, prefix, options) {
+  Document = Document || require('../../document');
+  const typeKey = options.typeKey;
+
+  for (const key of Object.keys(tree)) {
+    const limb = tree[key];
+
+    const hasSubprops = isPOJO(limb) &&
+      Object.keys(limb).length > 0 &&
+      (!limb[typeKey] || (typeKey === 'type' && isPOJO(limb.type) && limb.type.type));
+    const subprops = hasSubprops ? limb : null;
+
+    defineKey({ prop: key, subprops: subprops, prototype: proto, prefix: prefix, options: options });
+  }
+}
+
+/**
+ * Defines the accessor named prop on the incoming prototype.
+ * @param {Object} options
+ * @param {String} options.prop
+ * @param {Boolean} options.subprops
+ * @param {Any} options.prototype
+ * @param {String} [options.prefix]
+ * @param {Object} options.options
+ * @api private
+ */
+
+function defineKey({ prop, subprops, prototype, prefix, options }) {
+  Document = Document || require('../../document');
+  const path = (prefix ? prefix + '.' : '') + prop;
+  prefix = prefix || '';
+  const useGetOptions = prefix ? Object.freeze({}) : noDottedPathGetOptions;
+
+  if (subprops) {
+    Object.defineProperty(prototype, prop, {
+      enumerable: true,
+      configurable: true,
+      get: function() {
+        const _this = this;
+        if (!this.$__.getters) {
+          this.$__.getters = {};
+        }
+
+        if (!this.$__.getters[path]) {
+          const nested = Object.create(Document.prototype, getOwnPropertyDescriptors(this));
+
+          // save scope for nested getters/setters
+          if (!prefix) {
+            nested.$__[scopeSymbol] = this;
+          }
+          nested.$__.nestedPath = path;
+
+          Object.defineProperty(nested, 'schema', {
+            enumerable: false,
+            configurable: true,
+            writable: false,
+            value: prototype.schema
+          });
+
+          Object.defineProperty(nested, '$__schema', {
+            enumerable: false,
+            configurable: true,
+            writable: false,
+            value: prototype.schema
+          });
+
+          Object.defineProperty(nested, documentSchemaSymbol, {
+            enumerable: false,
+            configurable: true,
+            writable: false,
+            value: prototype.schema
+          });
+
+          Object.defineProperty(nested, 'toObject', {
+            enumerable: false,
+            configurable: true,
+            writable: false,
+            value: function() {
+              return clone(_this.get(path, null, {
+                virtuals: this &&
+                  this.schema &&
+                  this.schema.options &&
+                  this.schema.options.toObject &&
+                  this.schema.options.toObject.virtuals || null
+              }));
+            }
+          });
+
+          Object.defineProperty(nested, '$__get', {
+            enumerable: false,
+            configurable: true,
+            writable: false,
+            value: function() {
+              return _this.get(path, null, {
+                virtuals: this && this.schema && this.schema.options && this.schema.options.toObject && this.schema.options.toObject.virtuals || null
+              });
+            }
+          });
+
+          Object.defineProperty(nested, 'toJSON', {
+            enumerable: false,
+            configurable: true,
+            writable: false,
+            value: function() {
+              return _this.get(path, null, {
+                virtuals: this && this.schema && this.schema.options && this.schema.options.toJSON && this.schema.options.toJSON.virtuals || null
+              });
+            }
+          });
+
+          Object.defineProperty(nested, '$__isNested', {
+            enumerable: false,
+            configurable: true,
+            writable: false,
+            value: true
+          });
+
+          Object.defineProperty(nested, '$isEmpty', {
+            enumerable: false,
+            configurable: true,
+            writable: false,
+            value: function() {
+              return Object.keys(this.get(path, null, _isEmptyOptions) || {}).length === 0;
+            }
+          });
+
+          Object.defineProperty(nested, '$__parent', {
+            enumerable: false,
+            configurable: true,
+            writable: false,
+            value: this
+          });
+
+          compile(subprops, nested, path, options);
+          this.$__.getters[path] = nested;
+        }
+
+        return this.$__.getters[path];
+      },
+      set: function(v) {
+        if (v != null && v.$__isNested) {
+          // Convert top-level to POJO, but leave subdocs hydrated so `$set`
+          // can handle them. See gh-9293.
+          v = v.$__get();
+        } else if (v instanceof Document && !v.$__isNested) {
+          v = v.$toObject(internalToObjectOptions);
+        }
+        const doc = this.$__[scopeSymbol] || this;
+        doc.$set(path, v);
+      }
+    });
+  } else {
+    Object.defineProperty(prototype, prop, {
+      enumerable: true,
+      configurable: true,
+      get: function() {
+        return this[getSymbol].call(
+          this.$__[scopeSymbol] || this,
+          path,
+          null,
+          useGetOptions
+        );
+      },
+      set: function(v) {
+        this.$set.call(this.$__[scopeSymbol] || this, path, v);
+      }
+    });
+  }
+}
+
+// gets descriptors for all properties of `object`
+// makes all properties non-enumerable to match previous behavior to #2211
+function getOwnPropertyDescriptors(object) {
+  const result = {};
+
+  Object.getOwnPropertyNames(object).forEach(function(key) {
+    const skip = [
+      'isNew',
+      '$__',
+      '$errors',
+      'errors',
+      '_doc',
+      '$locals',
+      '$op',
+      '__parentArray',
+      '__index',
+      '$isDocumentArrayElement'
+    ].indexOf(key) === -1;
+    if (skip) {
+      return;
+    }
+
+    result[key] = Object.getOwnPropertyDescriptor(object, key);
+    result[key].enumerable = false;
+  });
+
+  return result;
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/document/getDeepestSubdocumentForPath.js b/backend/node_modules/mongoose/lib/helpers/document/getDeepestSubdocumentForPath.js
new file mode 100644
index 0000000..994bb30
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/document/getDeepestSubdocumentForPath.js
@@ -0,0 +1,38 @@
+'use strict';
+
+/**
+ * Find the deepest subdocument along a given path to ensure setter functions run
+ * with the correct subdocument as `this`. If no subdocuments, returns the top-level
+ * document.
+ *
+ * @param {Document} doc
+ * @param {String[]} parts
+ * @param {Schema} schema
+ * @returns Document
+ */
+
+module.exports = function getDeepestSubdocumentForPath(doc, parts, schema) {
+  let curPath = parts[0];
+  let curSchema = schema;
+  let subdoc = doc;
+  for (let i = 0; i < parts.length - 1; ++i) {
+    const curSchemaType = curSchema.path(curPath);
+    if (curSchemaType && curSchemaType.schema) {
+      let newSubdoc = subdoc.get(curPath);
+      curSchema = curSchemaType.schema;
+      curPath = parts[i + 1];
+      if (Array.isArray(newSubdoc) && !isNaN(curPath)) {
+        newSubdoc = newSubdoc[curPath];
+        curPath = '';
+      }
+      if (newSubdoc == null) {
+        break;
+      }
+      subdoc = newSubdoc;
+    } else {
+      curPath += curPath.length ? '.' + parts[i + 1] : parts[i + 1];
+    }
+  }
+
+  return subdoc;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/document/getEmbeddedDiscriminatorPath.js b/backend/node_modules/mongoose/lib/helpers/document/getEmbeddedDiscriminatorPath.js
new file mode 100644
index 0000000..3f3056e
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/document/getEmbeddedDiscriminatorPath.js
@@ -0,0 +1,53 @@
+'use strict';
+
+const get = require('../get');
+const getSchemaDiscriminatorByValue = require('../discriminator/getSchemaDiscriminatorByValue');
+
+/**
+ * Like `schema.path()`, except with a document, because impossible to
+ * determine path type without knowing the embedded discriminator key.
+ *
+ * @param {Document} doc
+ * @param {String|String[]} path
+ * @param {Object} [options]
+ * @api private
+ */
+
+module.exports = function getEmbeddedDiscriminatorPath(doc, path, options) {
+  options = options || {};
+  const typeOnly = options.typeOnly;
+  const parts = Array.isArray(path) ?
+    path :
+    (path.indexOf('.') === -1 ? [path] : path.split('.'));
+  let schemaType = null;
+  let type = 'adhocOrUndefined';
+
+  const schema = getSchemaDiscriminatorByValue(doc.schema, doc.get(doc.schema.options.discriminatorKey)) || doc.schema;
+
+  for (let i = 0; i < parts.length; ++i) {
+    const subpath = parts.slice(0, i + 1).join('.');
+    schemaType = schema.path(subpath);
+    if (schemaType == null) {
+      type = 'adhocOrUndefined';
+      continue;
+    }
+    if (schemaType.instance === 'Mixed') {
+      return typeOnly ? 'real' : schemaType;
+    }
+    type = schema.pathType(subpath);
+    if ((schemaType.$isSingleNested || schemaType.$isMongooseDocumentArrayElement) &&
+    schemaType.schema.discriminators != null) {
+      const discriminators = schemaType.schema.discriminators;
+      const discriminatorKey = doc.get(subpath + '.' +
+        get(schemaType, 'schema.options.discriminatorKey'));
+      if (discriminatorKey == null || discriminators[discriminatorKey] == null) {
+        continue;
+      }
+      const rest = parts.slice(i + 1).join('.');
+      return getEmbeddedDiscriminatorPath(doc.get(subpath), rest, options);
+    }
+  }
+
+  // Are we getting the whole schema or just the type, 'real', 'nested', etc.
+  return typeOnly ? type : schemaType;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/document/handleSpreadDoc.js b/backend/node_modules/mongoose/lib/helpers/document/handleSpreadDoc.js
new file mode 100644
index 0000000..5f71517
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/document/handleSpreadDoc.js
@@ -0,0 +1,35 @@
+'use strict';
+
+const utils = require('../../utils');
+
+const keysToSkip = new Set(['__index', '__parentArray', '_doc']);
+
+/**
+ * Using spread operator on a Mongoose document gives you a
+ * POJO that has a tendency to cause infinite recursion. So
+ * we use this function on `set()` to prevent that.
+ */
+
+module.exports = function handleSpreadDoc(v, includeExtraKeys) {
+  if (utils.isPOJO(v) && v.$__ != null && v._doc != null) {
+    if (includeExtraKeys) {
+      const extraKeys = {};
+      for (const key of Object.keys(v)) {
+        if (typeof key === 'symbol') {
+          continue;
+        }
+        if (key[0] === '$') {
+          continue;
+        }
+        if (keysToSkip.has(key)) {
+          continue;
+        }
+        extraKeys[key] = v[key];
+      }
+      return { ...v._doc, ...extraKeys };
+    }
+    return v._doc;
+  }
+
+  return v;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/each.js b/backend/node_modules/mongoose/lib/helpers/each.js
new file mode 100644
index 0000000..9ce5cc6
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/each.js
@@ -0,0 +1,25 @@
+'use strict';
+
+module.exports = function each(arr, cb, done) {
+  if (arr.length === 0) {
+    return done();
+  }
+
+  let remaining = arr.length;
+  let err = null;
+  for (const v of arr) {
+    cb(v, function(_err) {
+      if (err != null) {
+        return;
+      }
+      if (_err != null) {
+        err = _err;
+        return done(err);
+      }
+
+      if (--remaining <= 0) {
+        return done();
+      }
+    });
+  }
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/error/combinePathErrors.js b/backend/node_modules/mongoose/lib/helpers/error/combinePathErrors.js
new file mode 100644
index 0000000..841dbc0
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/error/combinePathErrors.js
@@ -0,0 +1,22 @@
+'use strict';
+
+/*!
+ * ignore
+ */
+
+module.exports = function combinePathErrors(err) {
+  const keys = Object.keys(err.errors || {});
+  const len = keys.length;
+  const msgs = [];
+  let key;
+
+  for (let i = 0; i < len; ++i) {
+    key = keys[i];
+    if (err === err.errors[key]) {
+      continue;
+    }
+    msgs.push(key + ': ' + err.errors[key].message);
+  }
+
+  return msgs.join(', ');
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/firstKey.js b/backend/node_modules/mongoose/lib/helpers/firstKey.js
new file mode 100644
index 0000000..4495d2a
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/firstKey.js
@@ -0,0 +1,8 @@
+'use strict';
+
+module.exports = function firstKey(obj) {
+  if (obj == null) {
+    return null;
+  }
+  return Object.keys(obj)[0];
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/get.js b/backend/node_modules/mongoose/lib/helpers/get.js
new file mode 100644
index 0000000..08c2b84
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/get.js
@@ -0,0 +1,65 @@
+'use strict';
+
+/**
+ * Simplified lodash.get to work around the annoying null quirk. See:
+ * https://github.com/lodash/lodash/issues/3659
+ * @api private
+ */
+
+module.exports = function get(obj, path, def) {
+  let parts;
+  let isPathArray = false;
+  if (typeof path === 'string') {
+    if (path.indexOf('.') === -1) {
+      const _v = getProperty(obj, path);
+      if (_v == null) {
+        return def;
+      }
+      return _v;
+    }
+
+    parts = path.split('.');
+  } else {
+    isPathArray = true;
+    parts = path;
+
+    if (parts.length === 1) {
+      const _v = getProperty(obj, parts[0]);
+      if (_v == null) {
+        return def;
+      }
+      return _v;
+    }
+  }
+  let rest = path;
+  let cur = obj;
+  for (const part of parts) {
+    if (cur == null) {
+      return def;
+    }
+
+    // `lib/cast.js` depends on being able to get dotted paths in updates,
+    // like `{ $set: { 'a.b': 42 } }`
+    if (!isPathArray && cur[rest] != null) {
+      return cur[rest];
+    }
+
+    cur = getProperty(cur, part);
+
+    if (!isPathArray) {
+      rest = rest.substr(part.length + 1);
+    }
+  }
+
+  return cur == null ? def : cur;
+};
+
+function getProperty(obj, prop) {
+  if (obj == null) {
+    return obj;
+  }
+  if (obj instanceof Map) {
+    return obj.get(prop);
+  }
+  return obj[prop];
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/getConstructorName.js b/backend/node_modules/mongoose/lib/helpers/getConstructorName.js
new file mode 100644
index 0000000..5ebe7bb
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/getConstructorName.js
@@ -0,0 +1,16 @@
+'use strict';
+
+/**
+ * If `val` is an object, returns constructor name, if possible. Otherwise returns undefined.
+ * @api private
+ */
+
+module.exports = function getConstructorName(val) {
+  if (val == null) {
+    return void 0;
+  }
+  if (typeof val.constructor !== 'function') {
+    return void 0;
+  }
+  return val.constructor.name;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/getDefaultBulkwriteResult.js b/backend/node_modules/mongoose/lib/helpers/getDefaultBulkwriteResult.js
new file mode 100644
index 0000000..855cf7a
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/getDefaultBulkwriteResult.js
@@ -0,0 +1,27 @@
+'use strict';
+function getDefaultBulkwriteResult() {
+  return {
+    result: {
+      ok: 1,
+      writeErrors: [],
+      writeConcernErrors: [],
+      insertedIds: [],
+      nInserted: 0,
+      nUpserted: 0,
+      nMatched: 0,
+      nModified: 0,
+      nRemoved: 0,
+      upserted: []
+    },
+    insertedCount: 0,
+    matchedCount: 0,
+    modifiedCount: 0,
+    deletedCount: 0,
+    upsertedCount: 0,
+    upsertedIds: {},
+    insertedIds: {},
+    n: 0
+  };
+}
+
+module.exports = getDefaultBulkwriteResult;
diff --git a/backend/node_modules/mongoose/lib/helpers/getFunctionName.js b/backend/node_modules/mongoose/lib/helpers/getFunctionName.js
new file mode 100644
index 0000000..d1f3a5a
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/getFunctionName.js
@@ -0,0 +1,10 @@
+'use strict';
+
+const functionNameRE = /^function\s*([^\s(]+)/;
+
+module.exports = function(fn) {
+  return (
+    fn.name ||
+    (fn.toString().trim().match(functionNameRE) || [])[1]
+  );
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/immediate.js b/backend/node_modules/mongoose/lib/helpers/immediate.js
new file mode 100644
index 0000000..73085f7
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/immediate.js
@@ -0,0 +1,16 @@
+/*!
+ * Centralize this so we can more easily work around issues with people
+ * stubbing out `process.nextTick()` in tests using sinon:
+ * https://github.com/sinonjs/lolex#automatically-incrementing-mocked-time
+ * See gh-6074
+ */
+
+'use strict';
+
+const nextTick = typeof process !== 'undefined' && typeof process.nextTick === 'function' ?
+  process.nextTick.bind(process) :
+  cb => setTimeout(cb, 0); // Fallback for browser build
+
+module.exports = function immediate(cb) {
+  return nextTick(cb);
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/indexes/applySchemaCollation.js b/backend/node_modules/mongoose/lib/helpers/indexes/applySchemaCollation.js
new file mode 100644
index 0000000..93a97a4
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/indexes/applySchemaCollation.js
@@ -0,0 +1,13 @@
+'use strict';
+
+const isTextIndex = require('./isTextIndex');
+
+module.exports = function applySchemaCollation(indexKeys, indexOptions, schemaOptions) {
+  if (isTextIndex(indexKeys)) {
+    return;
+  }
+
+  if (schemaOptions.hasOwnProperty('collation') && !indexOptions.hasOwnProperty('collation')) {
+    indexOptions.collation = schemaOptions.collation;
+  }
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/indexes/decorateDiscriminatorIndexOptions.js b/backend/node_modules/mongoose/lib/helpers/indexes/decorateDiscriminatorIndexOptions.js
new file mode 100644
index 0000000..7b7f51a
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/indexes/decorateDiscriminatorIndexOptions.js
@@ -0,0 +1,14 @@
+'use strict';
+
+module.exports = function decorateDiscriminatorIndexOptions(schema, indexOptions) {
+  // If the model is a discriminator and has an index, add a
+  // partialFilterExpression by default so the index will only apply
+  // to that discriminator.
+  const discriminatorName = schema.discriminatorMapping && schema.discriminatorMapping.value;
+  if (discriminatorName && !('sparse' in indexOptions)) {
+    const discriminatorKey = schema.options.discriminatorKey;
+    indexOptions.partialFilterExpression = indexOptions.partialFilterExpression || {};
+    indexOptions.partialFilterExpression[discriminatorKey] = discriminatorName;
+  }
+  return indexOptions;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/indexes/getRelatedIndexes.js b/backend/node_modules/mongoose/lib/helpers/indexes/getRelatedIndexes.js
new file mode 100644
index 0000000..a22a5e1
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/indexes/getRelatedIndexes.js
@@ -0,0 +1,63 @@
+'use strict';
+
+const hasDollarKeys = require('../query/hasDollarKeys');
+
+function getRelatedSchemaIndexes(model, schemaIndexes) {
+  return getRelatedIndexes({
+    baseModelName: model.baseModelName,
+    discriminatorMapping: model.schema.discriminatorMapping,
+    indexes: schemaIndexes,
+    indexesType: 'schema'
+  });
+}
+
+function getRelatedDBIndexes(model, dbIndexes) {
+  return getRelatedIndexes({
+    baseModelName: model.baseModelName,
+    discriminatorMapping: model.schema.discriminatorMapping,
+    indexes: dbIndexes,
+    indexesType: 'db'
+  });
+}
+
+module.exports = {
+  getRelatedSchemaIndexes,
+  getRelatedDBIndexes
+};
+
+function getRelatedIndexes({
+  baseModelName,
+  discriminatorMapping,
+  indexes,
+  indexesType
+}) {
+  const discriminatorKey = discriminatorMapping && discriminatorMapping.key;
+  const discriminatorValue = discriminatorMapping && discriminatorMapping.value;
+
+  if (!discriminatorKey) {
+    return indexes;
+  }
+
+  const isChildDiscriminatorModel = Boolean(baseModelName);
+  if (isChildDiscriminatorModel) {
+    return indexes.filter(index => {
+      const partialFilterExpression = getPartialFilterExpression(index, indexesType);
+      return partialFilterExpression && partialFilterExpression[discriminatorKey] === discriminatorValue;
+    });
+  }
+
+  return indexes.filter(index => {
+    const partialFilterExpression = getPartialFilterExpression(index, indexesType);
+    return !partialFilterExpression
+      || !partialFilterExpression[discriminatorKey]
+      || (hasDollarKeys(partialFilterExpression[discriminatorKey]) && !('$eq' in partialFilterExpression[discriminatorKey]));
+  });
+}
+
+function getPartialFilterExpression(index, indexesType) {
+  if (indexesType === 'schema') {
+    const options = index[1];
+    return options && options.partialFilterExpression;
+  }
+  return index.partialFilterExpression;
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/indexes/isDefaultIdIndex.js b/backend/node_modules/mongoose/lib/helpers/indexes/isDefaultIdIndex.js
new file mode 100644
index 0000000..56d7434
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/indexes/isDefaultIdIndex.js
@@ -0,0 +1,18 @@
+'use strict';
+
+const get = require('../get');
+
+module.exports = function isDefaultIdIndex(index) {
+  if (Array.isArray(index)) {
+    // Mongoose syntax
+    const keys = Object.keys(index[0]);
+    return keys.length === 1 && keys[0] === '_id' && index[0]._id !== 'hashed';
+  }
+
+  if (typeof index !== 'object') {
+    return false;
+  }
+
+  const key = get(index, 'key', {});
+  return Object.keys(key).length === 1 && key.hasOwnProperty('_id');
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/indexes/isIndexEqual.js b/backend/node_modules/mongoose/lib/helpers/indexes/isIndexEqual.js
new file mode 100644
index 0000000..7350412
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/indexes/isIndexEqual.js
@@ -0,0 +1,96 @@
+'use strict';
+
+const get = require('../get');
+const utils = require('../../utils');
+/**
+ * Given a Mongoose index definition (key + options objects) and a MongoDB server
+ * index definition, determine if the two indexes are equal.
+ *
+ * @param {Object} schemaIndexKeysObject the Mongoose index spec
+ * @param {Object} options the Mongoose index definition's options
+ * @param {Object} dbIndex the index in MongoDB as returned by `listIndexes()`
+ * @api private
+ */
+
+module.exports = function isIndexEqual(schemaIndexKeysObject, options, dbIndex) {
+  // Special case: text indexes have a special format in the db. For example,
+  // `{ name: 'text' }` becomes:
+  // {
+  //   v: 2,
+  //   key: { _fts: 'text', _ftsx: 1 },
+  //   name: 'name_text',
+  //   ns: 'test.tests',
+  //   background: true,
+  //   weights: { name: 1 },
+  //   default_language: 'english',
+  //   language_override: 'language',
+  //   textIndexVersion: 3
+  // }
+  if (dbIndex.textIndexVersion != null) {
+    delete dbIndex.key._fts;
+    delete dbIndex.key._ftsx;
+    const weights = { ...dbIndex.weights, ...dbIndex.key };
+    if (Object.keys(weights).length !== Object.keys(schemaIndexKeysObject).length) {
+      return false;
+    }
+    for (const prop of Object.keys(weights)) {
+      if (!(prop in schemaIndexKeysObject)) {
+        return false;
+      }
+      const weight = weights[prop];
+      if (weight !== get(options, 'weights.' + prop) && !(weight === 1 && get(options, 'weights.' + prop) == null)) {
+        return false;
+      }
+    }
+
+    if (options['default_language'] !== dbIndex['default_language']) {
+      return dbIndex['default_language'] === 'english' && options['default_language'] == null;
+    }
+
+    return true;
+  }
+
+  const optionKeys = [
+    'unique',
+    'partialFilterExpression',
+    'sparse',
+    'expireAfterSeconds',
+    'collation'
+  ];
+  for (const key of optionKeys) {
+    if (!(key in options) && !(key in dbIndex)) {
+      continue;
+    }
+    if (key === 'collation') {
+      if (options[key] == null || dbIndex[key] == null) {
+        return options[key] == null && dbIndex[key] == null;
+      }
+      const definedKeys = Object.keys(options.collation);
+      const schemaCollation = options.collation;
+      const dbCollation = dbIndex.collation;
+      for (const opt of definedKeys) {
+        if (get(schemaCollation, opt) !== get(dbCollation, opt)) {
+          return false;
+        }
+      }
+    } else if (!utils.deepEqual(options[key], dbIndex[key])) {
+      return false;
+    }
+  }
+
+  const schemaIndexKeys = Object.keys(schemaIndexKeysObject);
+  const dbIndexKeys = Object.keys(dbIndex.key);
+  if (schemaIndexKeys.length !== dbIndexKeys.length) {
+    return false;
+  }
+  for (let i = 0; i < schemaIndexKeys.length; ++i) {
+    if (schemaIndexKeys[i] !== dbIndexKeys[i]) {
+      return false;
+    }
+    if (!utils.deepEqual(schemaIndexKeysObject[schemaIndexKeys[i]], dbIndex.key[dbIndexKeys[i]])) {
+      return false;
+    }
+  }
+
+  return true;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/indexes/isIndexSpecEqual.js b/backend/node_modules/mongoose/lib/helpers/indexes/isIndexSpecEqual.js
new file mode 100644
index 0000000..defcfb0
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/indexes/isIndexSpecEqual.js
@@ -0,0 +1,32 @@
+'use strict';
+
+/**
+ * Compares two index specifications to determine if they are equal.
+ *
+ * #### Example:
+ *     isIndexSpecEqual({ a: 1, b: 1 }, { a: 1, b: 1 }); // true
+ *     isIndexSpecEqual({ a: 1, b: 1 }, { b: 1, a: 1 }); // false
+ *     isIndexSpecEqual({ a: 1, b: -1 }, { a: 1, b: 1 }); // false
+ *
+ * @param {Object} spec1 The first index specification to compare.
+ * @param {Object} spec2 The second index specification to compare.
+ * @returns {Boolean} Returns true if the index specifications are equal, otherwise returns false.
+ */
+
+module.exports = function isIndexSpecEqual(spec1, spec2) {
+  const spec1Keys = Object.keys(spec1);
+  const spec2Keys = Object.keys(spec2);
+
+  if (spec1Keys.length !== spec2Keys.length) {
+    return false;
+  }
+
+  for (let i = 0; i < spec1Keys.length; i++) {
+    const key = spec1Keys[i];
+    if (key !== spec2Keys[i] || spec1[key] !== spec2[key]) {
+      return false;
+    }
+  }
+
+  return true;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/indexes/isTextIndex.js b/backend/node_modules/mongoose/lib/helpers/indexes/isTextIndex.js
new file mode 100644
index 0000000..fdd98d4
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/indexes/isTextIndex.js
@@ -0,0 +1,16 @@
+'use strict';
+
+/**
+ * Returns `true` if the given index options have a `text` option.
+ */
+
+module.exports = function isTextIndex(indexKeys) {
+  let isTextIndex = false;
+  for (const key of Object.keys(indexKeys)) {
+    if (indexKeys[key] === 'text') {
+      isTextIndex = true;
+    }
+  }
+
+  return isTextIndex;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/indexes/isTimeseriesIndex.js b/backend/node_modules/mongoose/lib/helpers/indexes/isTimeseriesIndex.js
new file mode 100644
index 0000000..0a4512b
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/indexes/isTimeseriesIndex.js
@@ -0,0 +1,16 @@
+'use strict';
+
+/**
+ * Returns `true` if the given index matches the schema's `timestamps` options
+ */
+
+module.exports = function isTimeseriesIndex(dbIndex, schemaOptions) {
+  if (schemaOptions.timeseries == null) {
+    return false;
+  }
+  const { timeField, metaField } = schemaOptions.timeseries;
+  if (typeof timeField !== 'string' || typeof metaField !== 'string') {
+    return false;
+  }
+  return Object.keys(dbIndex.key).length === 2 && dbIndex.key[timeField] === 1 && dbIndex.key[metaField] === 1;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/isAsyncFunction.js b/backend/node_modules/mongoose/lib/helpers/isAsyncFunction.js
new file mode 100644
index 0000000..679590e
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/isAsyncFunction.js
@@ -0,0 +1,9 @@
+'use strict';
+
+module.exports = function isAsyncFunction(v) {
+  return (
+    typeof v === 'function' &&
+    v.constructor &&
+    v.constructor.name === 'AsyncFunction'
+  );
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/isBsonType.js b/backend/node_modules/mongoose/lib/helpers/isBsonType.js
new file mode 100644
index 0000000..ab6ceba
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/isBsonType.js
@@ -0,0 +1,15 @@
+'use strict';
+
+/**
+ * Get the bson type, if it exists
+ * @api private
+ */
+
+function isBsonType(obj, typename) {
+  return (
+    obj != null &&
+    obj._bsontype === typename
+  );
+}
+
+module.exports = isBsonType;
diff --git a/backend/node_modules/mongoose/lib/helpers/isMongooseObject.js b/backend/node_modules/mongoose/lib/helpers/isMongooseObject.js
new file mode 100644
index 0000000..736d0ec
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/isMongooseObject.js
@@ -0,0 +1,22 @@
+'use strict';
+
+const isMongooseArray = require('../types/array/isMongooseArray').isMongooseArray;
+/**
+ * Returns if `v` is a mongoose object that has a `toObject()` method we can use.
+ *
+ * This is for compatibility with libs like Date.js which do foolish things to Natives.
+ *
+ * @param {Any} v
+ * @api private
+ */
+
+module.exports = function(v) {
+  return (
+    v != null && (
+      isMongooseArray(v) || // Array or Document Array
+      v.$__ != null || // Document
+      v.isMongooseBuffer || // Buffer
+      v.$isMongooseMap // Map
+    )
+  );
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/isObject.js b/backend/node_modules/mongoose/lib/helpers/isObject.js
new file mode 100644
index 0000000..21900de
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/isObject.js
@@ -0,0 +1,16 @@
+'use strict';
+
+/**
+ * Determines if `arg` is an object.
+ *
+ * @param {Object|Array|String|Function|RegExp|any} arg
+ * @api private
+ * @return {Boolean}
+ */
+
+module.exports = function(arg) {
+  return (
+    Buffer.isBuffer(arg) ||
+    Object.prototype.toString.call(arg) === '[object Object]'
+  );
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/isPOJO.js b/backend/node_modules/mongoose/lib/helpers/isPOJO.js
new file mode 100644
index 0000000..2f1a00f
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/isPOJO.js
@@ -0,0 +1,12 @@
+'use strict';
+
+module.exports = function isPOJO(arg) {
+  if (arg == null || typeof arg !== 'object') {
+    return false;
+  }
+  const proto = Object.getPrototypeOf(arg);
+  // Prototype may be null if you used `Object.create(null)`
+  // Checking `proto`'s constructor is safe because `getPrototypeOf()`
+  // explicitly crosses the boundary from object data to object metadata
+  return !proto || proto.constructor.name === 'Object';
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/isPromise.js b/backend/node_modules/mongoose/lib/helpers/isPromise.js
new file mode 100644
index 0000000..0da827e
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/isPromise.js
@@ -0,0 +1,6 @@
+'use strict';
+function isPromise(val) {
+  return !!val && (typeof val === 'object' || typeof val === 'function') && typeof val.then === 'function';
+}
+
+module.exports = isPromise;
diff --git a/backend/node_modules/mongoose/lib/helpers/isSimpleValidator.js b/backend/node_modules/mongoose/lib/helpers/isSimpleValidator.js
new file mode 100644
index 0000000..92c9346
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/isSimpleValidator.js
@@ -0,0 +1,22 @@
+'use strict';
+
+/**
+ * Determines if `arg` is a flat object.
+ *
+ * @param {Object|Array|String|Function|RegExp|any} arg
+ * @api private
+ * @return {Boolean}
+ */
+
+module.exports = function isSimpleValidator(obj) {
+  const keys = Object.keys(obj);
+  let result = true;
+  for (let i = 0, len = keys.length; i < len; ++i) {
+    if (typeof obj[keys[i]] === 'object' && obj[keys[i]] !== null) {
+      result = false;
+      break;
+    }
+  }
+
+  return result;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/minimize.js b/backend/node_modules/mongoose/lib/helpers/minimize.js
new file mode 100644
index 0000000..902309f
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/minimize.js
@@ -0,0 +1,41 @@
+'use strict';
+
+const { isPOJO } = require('../utils');
+
+module.exports = minimize;
+
+/**
+ * Minimizes an object, removing undefined values and empty objects
+ *
+ * @param {Object} object to minimize
+ * @return {Object|undefined}
+ * @api private
+ */
+
+function minimize(obj) {
+  const keys = Object.keys(obj);
+  let i = keys.length;
+  let hasKeys;
+  let key;
+  let val;
+
+  while (i--) {
+    key = keys[i];
+    val = obj[key];
+
+    if (isPOJO(val)) {
+      obj[key] = minimize(val);
+    }
+
+    if (undefined === obj[key]) {
+      delete obj[key];
+      continue;
+    }
+
+    hasKeys = true;
+  }
+
+  return hasKeys
+    ? obj
+    : undefined;
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/model/applyDefaultsToPOJO.js b/backend/node_modules/mongoose/lib/helpers/model/applyDefaultsToPOJO.js
new file mode 100644
index 0000000..4aca295
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/model/applyDefaultsToPOJO.js
@@ -0,0 +1,52 @@
+'use strict';
+
+module.exports = function applyDefaultsToPOJO(doc, schema) {
+  const paths = Object.keys(schema.paths);
+  const plen = paths.length;
+
+  for (let i = 0; i < plen; ++i) {
+    let curPath = '';
+    const p = paths[i];
+
+    const type = schema.paths[p];
+    const path = type.splitPath();
+    const len = path.length;
+    let doc_ = doc;
+    for (let j = 0; j < len; ++j) {
+      if (doc_ == null) {
+        break;
+      }
+
+      const piece = path[j];
+      curPath += (!curPath.length ? '' : '.') + piece;
+
+      if (j === len - 1) {
+        if (typeof doc_[piece] !== 'undefined') {
+          if (type.$isSingleNested) {
+            applyDefaultsToPOJO(doc_[piece], type.caster.schema);
+          } else if (type.$isMongooseDocumentArray && Array.isArray(doc_[piece])) {
+            doc_[piece].forEach(el => applyDefaultsToPOJO(el, type.schema));
+          }
+
+          break;
+        }
+
+        const def = type.getDefault(doc, false, { skipCast: true });
+        if (typeof def !== 'undefined') {
+          doc_[piece] = def;
+
+          if (type.$isSingleNested) {
+            applyDefaultsToPOJO(def, type.caster.schema);
+          } else if (type.$isMongooseDocumentArray && Array.isArray(def)) {
+            def.forEach(el => applyDefaultsToPOJO(el, type.schema));
+          }
+        }
+      } else {
+        if (doc_[piece] == null) {
+          doc_[piece] = {};
+        }
+        doc_ = doc_[piece];
+      }
+    }
+  }
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/model/applyHooks.js b/backend/node_modules/mongoose/lib/helpers/model/applyHooks.js
new file mode 100644
index 0000000..998da62
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/model/applyHooks.js
@@ -0,0 +1,150 @@
+'use strict';
+
+const symbols = require('../../schema/symbols');
+const promiseOrCallback = require('../promiseOrCallback');
+
+/*!
+ * ignore
+ */
+
+module.exports = applyHooks;
+
+/*!
+ * ignore
+ */
+
+applyHooks.middlewareFunctions = [
+  'deleteOne',
+  'save',
+  'validate',
+  'remove',
+  'updateOne',
+  'init'
+];
+
+/*!
+ * ignore
+ */
+
+const alreadyHookedFunctions = new Set(applyHooks.middlewareFunctions.flatMap(fn => ([fn, `$__${fn}`])));
+
+/**
+ * Register hooks for this model
+ *
+ * @param {Model} model
+ * @param {Schema} schema
+ * @param {Object} options
+ * @api private
+ */
+
+function applyHooks(model, schema, options) {
+  options = options || {};
+
+  const kareemOptions = {
+    useErrorHandlers: true,
+    numCallbackParams: 1,
+    nullResultByDefault: true,
+    contextParameter: true
+  };
+  const objToDecorate = options.decorateDoc ? model : model.prototype;
+
+  model.$appliedHooks = true;
+  for (const key of Object.keys(schema.paths)) {
+    const type = schema.paths[key];
+    let childModel = null;
+    if (type.$isSingleNested) {
+      childModel = type.caster;
+    } else if (type.$isMongooseDocumentArray) {
+      childModel = type.Constructor;
+    } else {
+      continue;
+    }
+
+    if (childModel.$appliedHooks) {
+      continue;
+    }
+
+    applyHooks(childModel, type.schema, { ...options, isChildSchema: true });
+    if (childModel.discriminators != null) {
+      const keys = Object.keys(childModel.discriminators);
+      for (const key of keys) {
+        applyHooks(childModel.discriminators[key],
+          childModel.discriminators[key].schema, options);
+      }
+    }
+  }
+
+  // Built-in hooks rely on hooking internal functions in order to support
+  // promises and make it so that `doc.save.toString()` provides meaningful
+  // information.
+
+  const middleware = schema.s.hooks.
+    filter(hook => {
+      if (hook.name === 'updateOne' || hook.name === 'deleteOne') {
+        return !!hook['document'];
+      }
+      if (hook.name === 'remove' || hook.name === 'init') {
+        return hook['document'] == null || !!hook['document'];
+      }
+      if (hook.query != null || hook.document != null) {
+        return hook.document !== false;
+      }
+      return true;
+    }).
+    filter(hook => {
+      // If user has overwritten the method, don't apply built-in middleware
+      if (schema.methods[hook.name]) {
+        return !hook.fn[symbols.builtInMiddleware];
+      }
+
+      return true;
+    });
+
+  model._middleware = middleware;
+
+  objToDecorate.$__originalValidate = objToDecorate.$__originalValidate || objToDecorate.$__validate;
+
+  const internalMethodsToWrap = options && options.isChildSchema ? ['save', 'validate', 'deleteOne'] : ['save', 'validate'];
+  for (const method of internalMethodsToWrap) {
+    const toWrap = method === 'validate' ? '$__originalValidate' : `$__${method}`;
+    const wrapped = middleware.
+      createWrapper(method, objToDecorate[toWrap], null, kareemOptions);
+    objToDecorate[`$__${method}`] = wrapped;
+  }
+  objToDecorate.$__init = middleware.
+    createWrapperSync('init', objToDecorate.$__init, null, kareemOptions);
+
+  // Support hooks for custom methods
+  const customMethods = Object.keys(schema.methods);
+  const customMethodOptions = Object.assign({}, kareemOptions, {
+    // Only use `checkForPromise` for custom methods, because mongoose
+    // query thunks are not as consistent as I would like about returning
+    // a nullish value rather than the query. If a query thunk returns
+    // a query, `checkForPromise` causes infinite recursion
+    checkForPromise: true
+  });
+  for (const method of customMethods) {
+    if (alreadyHookedFunctions.has(method)) {
+      continue;
+    }
+    if (!middleware.hasHooks(method)) {
+      // Don't wrap if there are no hooks for the custom method to avoid
+      // surprises. Also, `createWrapper()` enforces consistent async,
+      // so wrapping a sync method would break it.
+      continue;
+    }
+    const originalMethod = objToDecorate[method];
+    objToDecorate[method] = function() {
+      const args = Array.prototype.slice.call(arguments);
+      const cb = args.slice(-1).pop();
+      const argsWithoutCallback = typeof cb === 'function' ?
+        args.slice(0, args.length - 1) : args;
+      return promiseOrCallback(cb, callback => {
+        return this[`$__${method}`].apply(this,
+          argsWithoutCallback.concat([callback]));
+      }, model.events);
+    };
+    objToDecorate[`$__${method}`] = middleware.
+      createWrapper(method, originalMethod, null, customMethodOptions);
+  }
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/model/applyMethods.js b/backend/node_modules/mongoose/lib/helpers/model/applyMethods.js
new file mode 100644
index 0000000..e864bb1
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/model/applyMethods.js
@@ -0,0 +1,70 @@
+'use strict';
+
+const get = require('../get');
+const utils = require('../../utils');
+
+/**
+ * Register methods for this model
+ *
+ * @param {Model} model
+ * @param {Schema} schema
+ * @api private
+ */
+
+module.exports = function applyMethods(model, schema) {
+  const Model = require('../../model');
+
+  function apply(method, schema) {
+    Object.defineProperty(model.prototype, method, {
+      get: function() {
+        const h = {};
+        for (const k in schema.methods[method]) {
+          h[k] = schema.methods[method][k].bind(this);
+        }
+        return h;
+      },
+      configurable: true
+    });
+  }
+  for (const method of Object.keys(schema.methods)) {
+    const fn = schema.methods[method];
+    if (schema.tree.hasOwnProperty(method)) {
+      throw new Error('You have a method and a property in your schema both ' +
+        'named "' + method + '"');
+    }
+
+    // Avoid making custom methods if user sets a method to itself, e.g.
+    // `schema.method(save, Document.prototype.save)`. Can happen when
+    // calling `loadClass()` with a class that `extends Document`. See gh-12254
+    if (typeof fn === 'function' &&
+        Model.prototype[method] === fn) {
+      delete schema.methods[method];
+      continue;
+    }
+
+    if (schema.reserved[method] &&
+        !get(schema, `methodOptions.${method}.suppressWarning`, false)) {
+      utils.warn(`mongoose: the method name "${method}" is used by mongoose ` +
+        'internally, overwriting it may cause bugs. If you\'re sure you know ' +
+        'what you\'re doing, you can suppress this error by using ' +
+        `\`schema.method('${method}', fn, { suppressWarning: true })\`.`);
+    }
+    if (typeof fn === 'function') {
+      model.prototype[method] = fn;
+    } else {
+      apply(method, schema);
+    }
+  }
+
+  // Recursively call `applyMethods()` on child schemas
+  model.$appliedMethods = true;
+  for (const key of Object.keys(schema.paths)) {
+    const type = schema.paths[key];
+    if (type.$isSingleNested && !type.caster.$appliedMethods) {
+      applyMethods(type.caster, type.schema);
+    }
+    if (type.$isMongooseDocumentArray && !type.Constructor.$appliedMethods) {
+      applyMethods(type.Constructor, type.schema);
+    }
+  }
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/model/applyStaticHooks.js b/backend/node_modules/mongoose/lib/helpers/model/applyStaticHooks.js
new file mode 100644
index 0000000..4011646
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/model/applyStaticHooks.js
@@ -0,0 +1,80 @@
+'use strict';
+
+const promiseOrCallback = require('../promiseOrCallback');
+const { queryMiddlewareFunctions, aggregateMiddlewareFunctions, modelMiddlewareFunctions, documentMiddlewareFunctions } = require('../../constants');
+
+const middlewareFunctions = Array.from(
+  new Set([
+    ...queryMiddlewareFunctions,
+    ...aggregateMiddlewareFunctions,
+    ...modelMiddlewareFunctions,
+    ...documentMiddlewareFunctions
+  ])
+);
+
+module.exports = function applyStaticHooks(model, hooks, statics) {
+  const kareemOptions = {
+    useErrorHandlers: true,
+    numCallbackParams: 1
+  };
+
+  model.$__insertMany = hooks.createWrapper('insertMany',
+    model.$__insertMany, model, kareemOptions);
+
+  hooks = hooks.filter(hook => {
+    // If the custom static overwrites an existing middleware, don't apply
+    // middleware to it by default. This avoids a potential backwards breaking
+    // change with plugins like `mongoose-delete` that use statics to overwrite
+    // built-in Mongoose functions.
+    if (middlewareFunctions.indexOf(hook.name) !== -1) {
+      return !!hook.model;
+    }
+    return hook.model !== false;
+  });
+
+  for (const key of Object.keys(statics)) {
+    if (hooks.hasHooks(key)) {
+      const original = model[key];
+
+      model[key] = function() {
+        const numArgs = arguments.length;
+        const lastArg = numArgs > 0 ? arguments[numArgs - 1] : null;
+        const cb = typeof lastArg === 'function' ? lastArg : null;
+        const args = Array.prototype.slice.
+          call(arguments, 0, cb == null ? numArgs : numArgs - 1);
+        // Special case: can't use `Kareem#wrap()` because it doesn't currently
+        // support wrapped functions that return a promise.
+        return promiseOrCallback(cb, callback => {
+          hooks.execPre(key, model, args, function(err) {
+            if (err != null) {
+              return callback(err);
+            }
+
+            let postCalled = 0;
+            const ret = original.apply(model, args.concat(post));
+            if (ret != null && typeof ret.then === 'function') {
+              ret.then(res => post(null, res), err => post(err));
+            }
+
+            function post(error, res) {
+              if (postCalled++ > 0) {
+                return;
+              }
+
+              if (error != null) {
+                return callback(error);
+              }
+
+              hooks.execPost(key, model, [res], function(error) {
+                if (error != null) {
+                  return callback(error);
+                }
+                callback(null, res);
+              });
+            }
+          });
+        }, model.events);
+      };
+    }
+  }
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/model/applyStatics.js b/backend/node_modules/mongoose/lib/helpers/model/applyStatics.js
new file mode 100644
index 0000000..d94d91c
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/model/applyStatics.js
@@ -0,0 +1,13 @@
+'use strict';
+
+/**
+ * Register statics for this model
+ * @param {Model} model
+ * @param {Schema} schema
+ * @api private
+ */
+module.exports = function applyStatics(model, schema) {
+  for (const i in schema.statics) {
+    model[i] = schema.statics[i];
+  }
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/model/castBulkWrite.js b/backend/node_modules/mongoose/lib/helpers/model/castBulkWrite.js
new file mode 100644
index 0000000..fc05300
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/model/castBulkWrite.js
@@ -0,0 +1,313 @@
+'use strict';
+
+const MongooseError = require('../../error/mongooseError');
+const getDiscriminatorByValue = require('../../helpers/discriminator/getDiscriminatorByValue');
+const applyTimestampsToChildren = require('../update/applyTimestampsToChildren');
+const applyTimestampsToUpdate = require('../update/applyTimestampsToUpdate');
+const cast = require('../../cast');
+const castUpdate = require('../query/castUpdate');
+const clone = require('../clone');
+const decorateUpdateWithVersionKey = require('../update/decorateUpdateWithVersionKey');
+const { inspect } = require('util');
+const setDefaultsOnInsert = require('../setDefaultsOnInsert');
+
+/**
+ * Given a model and a bulkWrite op, return a thunk that handles casting and
+ * validating the individual op.
+ * @param {Model} originalModel
+ * @param {Object} op
+ * @param {Object} [options]
+ * @api private
+ */
+
+module.exports = function castBulkWrite(originalModel, op, options) {
+  const now = originalModel.base.now();
+
+  if (op['insertOne']) {
+    return callback => module.exports.castInsertOne(originalModel, op['insertOne'], options).then(() => callback(null), err => callback(err));
+  } else if (op['updateOne']) {
+    return (callback) => {
+      try {
+        module.exports.castUpdateOne(originalModel, op['updateOne'], options, now);
+        callback(null);
+      } catch (err) {
+        callback(err);
+      }
+    };
+  } else if (op['updateMany']) {
+    return (callback) => {
+      try {
+        module.exports.castUpdateMany(originalModel, op['updateMany'], options, now);
+        callback(null);
+      } catch (err) {
+        callback(err);
+      }
+    };
+  } else if (op['replaceOne']) {
+    return (callback) => {
+      module.exports.castReplaceOne(originalModel, op['replaceOne'], options).then(() => callback(null), err => callback(err));
+    };
+  } else if (op['deleteOne']) {
+    return (callback) => {
+      try {
+        module.exports.castDeleteOne(originalModel, op['deleteOne']);
+        callback(null);
+      } catch (err) {
+        callback(err);
+      }
+    };
+  } else if (op['deleteMany']) {
+    return (callback) => {
+      try {
+        module.exports.castDeleteMany(originalModel, op['deleteMany']);
+        callback(null);
+      } catch (err) {
+        callback(err);
+      }
+    };
+  } else {
+    return (callback) => {
+      const error = new MongooseError(`Invalid op passed to \`bulkWrite()\`: ${inspect(op)}`);
+      callback(error, null);
+    };
+  }
+};
+
+module.exports.castInsertOne = async function castInsertOne(originalModel, insertOne, options) {
+  const model = decideModelByObject(originalModel, insertOne['document']);
+
+  const doc = new model(insertOne['document']);
+  if (model.schema.options.timestamps && getTimestampsOpt(insertOne, options)) {
+    doc.initializeTimestamps();
+  }
+  if (options.session != null) {
+    doc.$session(options.session);
+  }
+  const versionKey = model?.schema?.options?.versionKey;
+  if (versionKey && doc[versionKey] == null) {
+    doc[versionKey] = 0;
+  }
+  insertOne['document'] = doc;
+
+  if (options.skipValidation || insertOne.skipValidation) {
+    return insertOne;
+  }
+
+  await insertOne['document'].$validate();
+  return insertOne;
+};
+
+module.exports.castUpdateOne = function castUpdateOne(originalModel, updateOne, options, now) {
+  if (!updateOne['filter']) {
+    throw new Error('Must provide a filter object.');
+  }
+  if (!updateOne['update']) {
+    throw new Error('Must provide an update object.');
+  }
+
+  const model = decideModelByObject(originalModel, updateOne['filter']);
+  const schema = model.schema;
+  const strict = options.strict != null ? options.strict : model.schema.options.strict;
+
+  const update = clone(updateOne['update']);
+
+  _addDiscriminatorToObject(schema, updateOne['filter']);
+
+  const doInitTimestamps = getTimestampsOpt(updateOne, options);
+
+  if (model.schema.$timestamps != null && doInitTimestamps) {
+    const createdAt = model.schema.$timestamps.createdAt;
+    const updatedAt = model.schema.$timestamps.updatedAt;
+    applyTimestampsToUpdate(now, createdAt, updatedAt, update, {});
+  }
+
+  if (doInitTimestamps) {
+    applyTimestampsToChildren(now, update, model.schema);
+  }
+
+  const globalSetDefaultsOnInsert = originalModel.base.options.setDefaultsOnInsert;
+  const shouldSetDefaultsOnInsert = updateOne.setDefaultsOnInsert == null ?
+    globalSetDefaultsOnInsert :
+    updateOne.setDefaultsOnInsert;
+  if (shouldSetDefaultsOnInsert !== false) {
+    setDefaultsOnInsert(updateOne['filter'], model.schema, update, {
+      setDefaultsOnInsert: true,
+      upsert: updateOne.upsert
+    });
+  }
+
+  decorateUpdateWithVersionKey(
+    update,
+    updateOne,
+    model.schema.options.versionKey
+  );
+
+  updateOne['filter'] = cast(model.schema, updateOne['filter'], {
+    strict: strict,
+    upsert: updateOne.upsert
+  });
+  updateOne['update'] = castUpdate(model.schema, update, {
+    strict: strict,
+    upsert: updateOne.upsert,
+    arrayFilters: updateOne.arrayFilters,
+    overwriteDiscriminatorKey: updateOne.overwriteDiscriminatorKey
+  }, model, updateOne['filter']);
+
+  return updateOne;
+};
+
+module.exports.castUpdateMany = function castUpdateMany(originalModel, updateMany, options, now) {
+  if (!updateMany['filter']) {
+    throw new Error('Must provide a filter object.');
+  }
+  if (!updateMany['update']) {
+    throw new Error('Must provide an update object.');
+  }
+
+  const model = decideModelByObject(originalModel, updateMany['filter']);
+  const schema = model.schema;
+  const strict = options.strict != null ? options.strict : model.schema.options.strict;
+
+  const globalSetDefaultsOnInsert = originalModel.base.options.setDefaultsOnInsert;
+  const shouldSetDefaultsOnInsert = updateMany.setDefaultsOnInsert == null ?
+    globalSetDefaultsOnInsert :
+    updateMany.setDefaultsOnInsert;
+
+  if (shouldSetDefaultsOnInsert !== false) {
+    setDefaultsOnInsert(updateMany['filter'], model.schema, updateMany['update'], {
+      setDefaultsOnInsert: true,
+      upsert: updateMany.upsert
+    });
+  }
+
+  const doInitTimestamps = getTimestampsOpt(updateMany, options);
+
+  if (model.schema.$timestamps != null && doInitTimestamps) {
+    const createdAt = model.schema.$timestamps.createdAt;
+    const updatedAt = model.schema.$timestamps.updatedAt;
+    applyTimestampsToUpdate(now, createdAt, updatedAt, updateMany['update'], {});
+  }
+  if (doInitTimestamps) {
+    applyTimestampsToChildren(now, updateMany['update'], model.schema);
+  }
+
+  _addDiscriminatorToObject(schema, updateMany['filter']);
+
+  decorateUpdateWithVersionKey(
+    updateMany['update'],
+    updateMany,
+    model.schema.options.versionKey
+  );
+
+  updateMany['filter'] = cast(model.schema, updateMany['filter'], {
+    strict: strict,
+    upsert: updateMany.upsert
+  });
+
+  updateMany['update'] = castUpdate(model.schema, updateMany['update'], {
+    strict: strict,
+    upsert: updateMany.upsert,
+    arrayFilters: updateMany.arrayFilters,
+    overwriteDiscriminatorKey: updateMany.overwriteDiscriminatorKey
+  }, model, updateMany['filter']);
+};
+
+module.exports.castReplaceOne = async function castReplaceOne(originalModel, replaceOne, options) {
+  const model = decideModelByObject(originalModel, replaceOne['filter']);
+  const schema = model.schema;
+  const strict = options.strict != null ? options.strict : model.schema.options.strict;
+
+  _addDiscriminatorToObject(schema, replaceOne['filter']);
+  replaceOne['filter'] = cast(model.schema, replaceOne['filter'], {
+    strict: strict,
+    upsert: replaceOne.upsert
+  });
+
+  // set `skipId`, otherwise we get "_id field cannot be changed"
+  const doc = new model(replaceOne['replacement'], strict, true);
+  if (model.schema.options.timestamps && getTimestampsOpt(replaceOne, options)) {
+    doc.initializeTimestamps();
+  }
+  if (options.session != null) {
+    doc.$session(options.session);
+  }
+  const versionKey = model?.schema?.options?.versionKey;
+  if (versionKey && doc[versionKey] == null) {
+    doc[versionKey] = 0;
+  }
+  replaceOne['replacement'] = doc;
+
+  if (options.skipValidation || replaceOne.skipValidation) {
+    replaceOne['replacement'] = replaceOne['replacement'].toBSON();
+    return;
+  }
+
+  await replaceOne['replacement'].$validate();
+  replaceOne['replacement'] = replaceOne['replacement'].toBSON();
+};
+
+module.exports.castDeleteOne = function castDeleteOne(originalModel, deleteOne) {
+  const model = decideModelByObject(originalModel, deleteOne['filter']);
+  const schema = model.schema;
+
+  _addDiscriminatorToObject(schema, deleteOne['filter']);
+
+  deleteOne['filter'] = cast(model.schema, deleteOne['filter']);
+};
+
+module.exports.castDeleteMany = function castDeleteMany(originalModel, deleteMany) {
+  const model = decideModelByObject(originalModel, deleteMany['filter']);
+  const schema = model.schema;
+
+  _addDiscriminatorToObject(schema, deleteMany['filter']);
+
+  deleteMany['filter'] = cast(model.schema, deleteMany['filter']);
+};
+
+module.exports.cast = {
+  insertOne: module.exports.castInsertOne,
+  updateOne: module.exports.castUpdateOne,
+  updateMany: module.exports.castUpdateMany,
+  replaceOne: module.exports.castReplaceOne,
+  deleteOne: module.exports.castDeleteOne,
+  deleteMany: module.exports.castDeleteMany
+};
+
+function _addDiscriminatorToObject(schema, obj) {
+  if (schema == null) {
+    return;
+  }
+  if (schema.discriminatorMapping && !schema.discriminatorMapping.isRoot) {
+    obj[schema.discriminatorMapping.key] = schema.discriminatorMapping.value;
+  }
+}
+
+/**
+ * gets discriminator model if discriminator key is present in object
+ * @api private
+ */
+
+function decideModelByObject(model, object) {
+  const discriminatorKey = model.schema.options.discriminatorKey;
+  if (object != null && object.hasOwnProperty(discriminatorKey)) {
+    model = getDiscriminatorByValue(model.discriminators, object[discriminatorKey]) || model;
+  }
+  return model;
+}
+
+
+/**
+ * gets timestamps option for a given operation. If the option is set within an individual operation, use it. Otherwise, use the global timestamps option configured in the `bulkWrite` options. Overall default is `true`.
+ * @api private
+ */
+
+function getTimestampsOpt(opCommand, options) {
+  const opLevelOpt = opCommand.timestamps;
+  const bulkLevelOpt = options.timestamps;
+  if (opLevelOpt != null) {
+    return opLevelOpt;
+  } else if (bulkLevelOpt != null) {
+    return bulkLevelOpt;
+  }
+  return true;
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/model/discriminator.js b/backend/node_modules/mongoose/lib/helpers/model/discriminator.js
new file mode 100644
index 0000000..f5c4216
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/model/discriminator.js
@@ -0,0 +1,217 @@
+'use strict';
+
+const Mixed = require('../../schema/mixed');
+const applyBuiltinPlugins = require('../schema/applyBuiltinPlugins');
+const clone = require('../clone');
+const defineKey = require('../document/compile').defineKey;
+const get = require('../get');
+const utils = require('../../utils');
+const mergeDiscriminatorSchema = require('../../helpers/discriminator/mergeDiscriminatorSchema');
+
+const CUSTOMIZABLE_DISCRIMINATOR_OPTIONS = {
+  toJSON: true,
+  toObject: true,
+  _id: true,
+  id: true,
+  virtuals: true,
+  methods: true
+};
+
+/*!
+ * ignore
+ */
+
+module.exports = function discriminator(model, name, schema, tiedValue, applyPlugins, mergeHooks, overwriteExisting) {
+  if (!(schema && schema.instanceOfSchema)) {
+    throw new Error('You must pass a valid discriminator Schema');
+  }
+
+  mergeHooks = mergeHooks == null ? true : mergeHooks;
+
+  if (model.schema.discriminatorMapping &&
+      !model.schema.discriminatorMapping.isRoot) {
+    throw new Error('Discriminator "' + name +
+        '" can only be a discriminator of the root model');
+  }
+
+  if (applyPlugins) {
+    const applyPluginsToDiscriminators = get(model.base,
+      'options.applyPluginsToDiscriminators', false) || !mergeHooks;
+    // Even if `applyPluginsToDiscriminators` isn't set, we should still apply
+    // global plugins to schemas embedded in the discriminator schema (gh-7370)
+    model.base._applyPlugins(schema, {
+      skipTopLevel: !applyPluginsToDiscriminators
+    });
+  } else if (!mergeHooks) {
+    applyBuiltinPlugins(schema);
+  }
+
+  const key = model.schema.options.discriminatorKey;
+
+  const existingPath = model.schema.path(key);
+  if (existingPath != null) {
+    if (!utils.hasUserDefinedProperty(existingPath.options, 'select')) {
+      existingPath.options.select = true;
+    }
+    existingPath.options.$skipDiscriminatorCheck = true;
+  } else {
+    const baseSchemaAddition = {};
+    baseSchemaAddition[key] = {
+      default: void 0,
+      select: true,
+      $skipDiscriminatorCheck: true
+    };
+    baseSchemaAddition[key][model.schema.options.typeKey] = String;
+    model.schema.add(baseSchemaAddition);
+    defineKey({
+      prop: key,
+      prototype: model.prototype,
+      options: model.schema.options
+    });
+  }
+
+  if (schema.path(key) && schema.path(key).options.$skipDiscriminatorCheck !== true) {
+    throw new Error('Discriminator "' + name +
+        '" cannot have field with name "' + key + '"');
+  }
+
+  let value = name;
+  if ((typeof tiedValue === 'string' && tiedValue.length) || tiedValue != null) {
+    value = tiedValue;
+  }
+
+  function merge(schema, baseSchema) {
+    // Retain original schema before merging base schema
+    schema._baseSchema = baseSchema;
+    if (baseSchema.paths._id &&
+        baseSchema.paths._id.options &&
+        !baseSchema.paths._id.options.auto) {
+      schema.remove('_id');
+    }
+
+    // Find conflicting paths: if something is a path in the base schema
+    // and a nested path in the child schema, overwrite the base schema path.
+    // See gh-6076
+    const baseSchemaPaths = Object.keys(baseSchema.paths);
+    const conflictingPaths = [];
+
+    for (const path of baseSchemaPaths) {
+      if (schema.nested[path]) {
+        conflictingPaths.push(path);
+        continue;
+      }
+
+      if (path.indexOf('.') === -1) {
+        continue;
+      }
+      const sp = path.split('.').slice(0, -1);
+      let cur = '';
+      for (const piece of sp) {
+        cur += (cur.length ? '.' : '') + piece;
+        if (schema.paths[cur] instanceof Mixed ||
+            schema.singleNestedPaths[cur] instanceof Mixed) {
+          conflictingPaths.push(path);
+        }
+      }
+    }
+
+    // Shallow clone `obj` so we can add additional properties without modifying original
+    // schema. `Schema.prototype.clone()` copies `obj` by reference, no cloning.
+    schema.obj = { ...schema.obj };
+    mergeDiscriminatorSchema(schema, baseSchema);
+    schema._gatherChildSchemas();
+
+    // Clean up conflicting paths _after_ merging re: gh-6076
+    for (const conflictingPath of conflictingPaths) {
+      delete schema.paths[conflictingPath];
+    }
+
+    // Rebuild schema models because schemas may have been merged re: #7884
+    schema.childSchemas.forEach(obj => {
+      obj.model.prototype.$__setSchema(obj.schema);
+    });
+
+    const obj = {};
+    obj[key] = {
+      default: value,
+      select: true,
+      set: function(newName) {
+        if (newName === value || (Array.isArray(value) && utils.deepEqual(newName, value))) {
+          return value;
+        }
+        throw new Error('Can\'t set discriminator key "' + key + '"');
+      },
+      $skipDiscriminatorCheck: true
+    };
+    obj[key][schema.options.typeKey] = existingPath ? existingPath.options[schema.options.typeKey] : String;
+    schema.add(obj);
+
+    schema.discriminatorMapping = { key: key, value: value, isRoot: false };
+
+    if (baseSchema.options.collection) {
+      schema.options.collection = baseSchema.options.collection;
+    }
+    const toJSON = schema.options.toJSON;
+    const toObject = schema.options.toObject;
+    const _id = schema.options._id;
+    const id = schema.options.id;
+
+    const keys = Object.keys(schema.options);
+    schema.options.discriminatorKey = baseSchema.options.discriminatorKey;
+    const userProvidedOptions = schema._userProvidedOptions;
+    for (const _key of keys) {
+      if (!CUSTOMIZABLE_DISCRIMINATOR_OPTIONS[_key]) {
+        // Use `schema.options` in `deepEqual()` because of `discriminatorKey`
+        // set above. We don't allow customizing discriminator key, always
+        // overwrite. See gh-9238
+        if (_key in userProvidedOptions && !utils.deepEqual(schema.options[_key], baseSchema.options[_key])) {
+          throw new Error('Can\'t customize discriminator option ' + _key +
+            ' (can only modify ' +
+            Object.keys(CUSTOMIZABLE_DISCRIMINATOR_OPTIONS).join(', ') +
+            ')');
+        }
+      }
+    }
+    schema.options = clone(baseSchema.options);
+
+    for (const _key of Object.keys(userProvidedOptions)) {
+      schema.options[_key] = userProvidedOptions[_key];
+    }
+    if (toJSON) schema.options.toJSON = toJSON;
+    if (toObject) schema.options.toObject = toObject;
+    if (typeof _id !== 'undefined') {
+      schema.options._id = _id;
+    }
+    schema.options.id = id;
+    if (mergeHooks) {
+      schema.s.hooks = model.schema.s.hooks.merge(schema.s.hooks);
+    }
+    if (applyPlugins) {
+      schema.plugins = Array.prototype.slice.call(baseSchema.plugins);
+    }
+    schema.callQueue = baseSchema.callQueue.concat(schema.callQueue);
+    delete schema._requiredpaths; // reset just in case Schema#requiredPaths() was called on either schema
+  }
+
+  // merges base schema into new discriminator schema and sets new type field.
+  merge(schema, model.schema);
+
+  if (!model.discriminators) {
+    model.discriminators = {};
+  }
+
+  if (!model.schema.discriminatorMapping) {
+    model.schema.discriminatorMapping = { key: key, value: null, isRoot: true };
+  }
+  if (!model.schema.discriminators) {
+    model.schema.discriminators = {};
+  }
+
+  model.schema.discriminators[name] = schema;
+
+  if (model.discriminators[name] && !schema.options.overwriteModels && !overwriteExisting) {
+    throw new Error('Discriminator with name "' + name + '" already exists');
+  }
+
+  return schema;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/model/pushNestedArrayPaths.js b/backend/node_modules/mongoose/lib/helpers/model/pushNestedArrayPaths.js
new file mode 100644
index 0000000..7f234fa
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/model/pushNestedArrayPaths.js
@@ -0,0 +1,15 @@
+'use strict';
+
+module.exports = function pushNestedArrayPaths(paths, nestedArray, path) {
+  if (nestedArray == null) {
+    return;
+  }
+
+  for (let i = 0; i < nestedArray.length; ++i) {
+    if (Array.isArray(nestedArray[i])) {
+      pushNestedArrayPaths(paths, nestedArray[i], path + '.' + i);
+    } else {
+      paths.push(path + '.' + i);
+    }
+  }
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/omitUndefined.js b/backend/node_modules/mongoose/lib/helpers/omitUndefined.js
new file mode 100644
index 0000000..5c9eb88
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/omitUndefined.js
@@ -0,0 +1,20 @@
+'use strict';
+
+module.exports = function omitUndefined(val) {
+  if (val == null || typeof val !== 'object') {
+    return val;
+  }
+  if (Array.isArray(val)) {
+    for (let i = val.length - 1; i >= 0; --i) {
+      if (val[i] === undefined) {
+        val.splice(i, 1);
+      }
+    }
+  }
+  for (const key of Object.keys(val)) {
+    if (val[key] === void 0) {
+      delete val[key];
+    }
+  }
+  return val;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/once.js b/backend/node_modules/mongoose/lib/helpers/once.js
new file mode 100644
index 0000000..dfa5ee7
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/once.js
@@ -0,0 +1,12 @@
+'use strict';
+
+module.exports = function once(fn) {
+  let called = false;
+  return function() {
+    if (called) {
+      return;
+    }
+    called = true;
+    return fn.apply(null, arguments);
+  };
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/parallelLimit.js b/backend/node_modules/mongoose/lib/helpers/parallelLimit.js
new file mode 100644
index 0000000..9b07c02
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/parallelLimit.js
@@ -0,0 +1,55 @@
+'use strict';
+
+module.exports = parallelLimit;
+
+/*!
+ * ignore
+ */
+
+function parallelLimit(fns, limit, callback) {
+  let numInProgress = 0;
+  let numFinished = 0;
+  let error = null;
+
+  if (limit <= 0) {
+    throw new Error('Limit must be positive');
+  }
+
+  if (fns.length === 0) {
+    return callback(null, []);
+  }
+
+  for (let i = 0; i < fns.length && i < limit; ++i) {
+    _start();
+  }
+
+  function _start() {
+    fns[numFinished + numInProgress](_done(numFinished + numInProgress));
+    ++numInProgress;
+  }
+
+  const results = [];
+
+  function _done(index) {
+    return (err, res) => {
+      --numInProgress;
+      ++numFinished;
+
+      if (error != null) {
+        return;
+      }
+      if (err != null) {
+        error = err;
+        return callback(error);
+      }
+
+      results[index] = res;
+
+      if (numFinished === fns.length) {
+        return callback(null, results);
+      } else if (numFinished + numInProgress < fns.length) {
+        _start();
+      }
+    };
+  }
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/path/parentPaths.js b/backend/node_modules/mongoose/lib/helpers/path/parentPaths.js
new file mode 100644
index 0000000..6822c8c
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/path/parentPaths.js
@@ -0,0 +1,18 @@
+'use strict';
+
+const dotRE = /\./g;
+module.exports = function parentPaths(path) {
+  if (path.indexOf('.') === -1) {
+    return [path];
+  }
+  const pieces = path.split(dotRE);
+  const len = pieces.length;
+  const ret = new Array(len);
+  let cur = '';
+  for (let i = 0; i < len; ++i) {
+    cur += (cur.length !== 0) ? '.' + pieces[i] : pieces[i];
+    ret[i] = cur;
+  }
+
+  return ret;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/path/setDottedPath.js b/backend/node_modules/mongoose/lib/helpers/path/setDottedPath.js
new file mode 100644
index 0000000..b17d549
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/path/setDottedPath.js
@@ -0,0 +1,33 @@
+'use strict';
+
+const specialProperties = require('../specialProperties');
+
+
+module.exports = function setDottedPath(obj, path, val) {
+  if (path.indexOf('.') === -1) {
+    if (specialProperties.has(path)) {
+      return;
+    }
+
+    obj[path] = val;
+    return;
+  }
+  const parts = path.split('.');
+
+  const last = parts.pop();
+  let cur = obj;
+  for (const part of parts) {
+    if (specialProperties.has(part)) {
+      continue;
+    }
+    if (cur[part] == null) {
+      cur[part] = {};
+    }
+
+    cur = cur[part];
+  }
+
+  if (!specialProperties.has(last)) {
+    cur[last] = val;
+  }
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/pluralize.js b/backend/node_modules/mongoose/lib/helpers/pluralize.js
new file mode 100644
index 0000000..2f9cbf8
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/pluralize.js
@@ -0,0 +1,95 @@
+'use strict';
+
+module.exports = pluralize;
+
+/**
+ * Pluralization rules.
+ */
+
+exports.pluralization = [
+  [/human$/gi, 'humans'],
+  [/(m)an$/gi, '$1en'],
+  [/(pe)rson$/gi, '$1ople'],
+  [/(child)$/gi, '$1ren'],
+  [/^(ox)$/gi, '$1en'],
+  [/(ax|test)is$/gi, '$1es'],
+  [/(octop|vir)us$/gi, '$1i'],
+  [/(alias|status)$/gi, '$1es'],
+  [/(bu)s$/gi, '$1ses'],
+  [/(buffal|tomat|potat)o$/gi, '$1oes'],
+  [/([ti])um$/gi, '$1a'],
+  [/sis$/gi, 'ses'],
+  [/(?:([^f])fe|([lr])f)$/gi, '$1$2ves'],
+  [/(hive)$/gi, '$1s'],
+  [/([^aeiouy]|qu)y$/gi, '$1ies'],
+  [/(x|ch|ss|sh)$/gi, '$1es'],
+  [/(matr|vert|ind)ix|ex$/gi, '$1ices'],
+  [/([m|l])ouse$/gi, '$1ice'],
+  [/(kn|w|l)ife$/gi, '$1ives'],
+  [/(quiz)$/gi, '$1zes'],
+  [/^goose$/i, 'geese'],
+  [/s$/gi, 's'],
+  [/([^a-z])$/, '$1'],
+  [/$/gi, 's']
+];
+const rules = exports.pluralization;
+
+/**
+ * Uncountable words.
+ *
+ * These words are applied while processing the argument to `toCollectionName`.
+ * @api public
+ */
+
+exports.uncountables = [
+  'advice',
+  'energy',
+  'excretion',
+  'digestion',
+  'cooperation',
+  'health',
+  'justice',
+  'labour',
+  'machinery',
+  'equipment',
+  'information',
+  'pollution',
+  'sewage',
+  'paper',
+  'money',
+  'species',
+  'series',
+  'rain',
+  'rice',
+  'fish',
+  'sheep',
+  'moose',
+  'deer',
+  'news',
+  'expertise',
+  'status',
+  'media'
+];
+const uncountables = exports.uncountables;
+
+/**
+ * Pluralize function.
+ *
+ * @author TJ Holowaychuk (extracted from _ext.js_)
+ * @param {String} string to pluralize
+ * @api private
+ */
+
+function pluralize(str) {
+  let found;
+  str = str.toLowerCase();
+  if (!~uncountables.indexOf(str)) {
+    found = rules.filter(function(rule) {
+      return str.match(rule[0]);
+    });
+    if (found[0]) {
+      return str.replace(found[0][0], found[0][1]);
+    }
+  }
+  return str;
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/populate/assignRawDocsToIdStructure.js b/backend/node_modules/mongoose/lib/helpers/populate/assignRawDocsToIdStructure.js
new file mode 100644
index 0000000..765d69f
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/populate/assignRawDocsToIdStructure.js
@@ -0,0 +1,129 @@
+'use strict';
+
+const clone = require('../../helpers/clone');
+const leanPopulateMap = require('./leanPopulateMap');
+const modelSymbol = require('../symbols').modelSymbol;
+const utils = require('../../utils');
+
+module.exports = assignRawDocsToIdStructure;
+
+const kHasArray = Symbol('mongoose#assignRawDocsToIdStructure#hasArray');
+
+/**
+ * Assign `vals` returned by mongo query to the `rawIds`
+ * structure returned from utils.getVals() honoring
+ * query sort order if specified by user.
+ *
+ * This can be optimized.
+ *
+ * Rules:
+ *
+ *   if the value of the path is not an array, use findOne rules, else find.
+ *   for findOne the results are assigned directly to doc path (including null results).
+ *   for find, if user specified sort order, results are assigned directly
+ *   else documents are put back in original order of array if found in results
+ *
+ * @param {Array} rawIds
+ * @param {Array} resultDocs
+ * @param {Array} resultOrder
+ * @param {Object} options
+ * @param {Boolean} recursed
+ * @api private
+ */
+
+function assignRawDocsToIdStructure(rawIds, resultDocs, resultOrder, options, recursed) {
+  // honor user specified sort order, unless we're populating a single
+  // virtual underneath an array (e.g. populating `employees.mostRecentShift` where
+  // `mostRecentShift` is a virtual with `justOne`)
+  const newOrder = [];
+  const sorting = options.isVirtual && options.justOne && rawIds.length > 1
+    ? false :
+    options.sort && rawIds.length > 1;
+  const nullIfNotFound = options.$nullIfNotFound;
+  let doc;
+  let sid;
+  let id;
+
+  if (utils.isMongooseArray(rawIds)) {
+    rawIds = rawIds.__array;
+  }
+
+  let i = 0;
+  const len = rawIds.length;
+
+  if (sorting && recursed && options[kHasArray] === undefined) {
+    options[kHasArray] = false;
+    for (const key in resultOrder) {
+      if (Array.isArray(resultOrder[key])) {
+        options[kHasArray] = true;
+        break;
+      }
+    }
+  }
+
+  for (i = 0; i < len; ++i) {
+    id = rawIds[i];
+
+    if (Array.isArray(id)) {
+      // handle [ [id0, id2], [id3] ]
+      assignRawDocsToIdStructure(id, resultDocs, resultOrder, options, true);
+      newOrder.push(id);
+      continue;
+    }
+
+    if (id === null && sorting === false) {
+      // keep nulls for findOne unless sorting, which always
+      // removes them (backward compat)
+      newOrder.push(id);
+      continue;
+    }
+
+    sid = String(id);
+    doc = resultDocs[sid];
+    // If user wants separate copies of same doc, use this option
+    if (options.clone && doc != null) {
+      if (options.lean) {
+        const _model = leanPopulateMap.get(doc);
+        doc = clone(doc);
+        leanPopulateMap.set(doc, _model);
+      } else {
+        doc = doc.constructor.hydrate(doc._doc);
+      }
+    }
+
+    if (recursed) {
+      if (doc) {
+        if (sorting) {
+          const _resultOrder = resultOrder[sid];
+          if (options[kHasArray]) {
+            // If result arrays, rely on the MongoDB server response for ordering
+            newOrder.push(doc);
+          } else {
+            newOrder[_resultOrder] = doc;
+          }
+        } else {
+          newOrder.push(doc);
+        }
+      } else if (id != null && id[modelSymbol] != null) {
+        newOrder.push(id);
+      } else {
+        newOrder.push(options.retainNullValues || nullIfNotFound ? null : id);
+      }
+    } else {
+      // apply findOne behavior - if document in results, assign, else assign null
+      newOrder[i] = doc || null;
+    }
+  }
+
+  rawIds.length = 0;
+  if (newOrder.length) {
+    // reassign the documents based on corrected order
+
+    // forEach skips over sparse entries in arrays so we
+    // can safely use this to our advantage dealing with sorted
+    // result sets too.
+    newOrder.forEach(function(doc, i) {
+      rawIds[i] = doc;
+    });
+  }
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/populate/assignVals.js b/backend/node_modules/mongoose/lib/helpers/populate/assignVals.js
new file mode 100644
index 0000000..62b3863
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/populate/assignVals.js
@@ -0,0 +1,343 @@
+'use strict';
+
+const MongooseMap = require('../../types/map');
+const SkipPopulateValue = require('./skipPopulateValue');
+const assignRawDocsToIdStructure = require('./assignRawDocsToIdStructure');
+const get = require('../get');
+const getVirtual = require('./getVirtual');
+const leanPopulateMap = require('./leanPopulateMap');
+const lookupLocalFields = require('./lookupLocalFields');
+const markArraySubdocsPopulated = require('./markArraySubdocsPopulated');
+const mpath = require('mpath');
+const sift = require('sift').default;
+const utils = require('../../utils');
+const { populateModelSymbol } = require('../symbols');
+
+module.exports = function assignVals(o) {
+  // Options that aren't explicitly listed in `populateOptions`
+  const userOptions = Object.assign({}, get(o, 'allOptions.options.options'), get(o, 'allOptions.options'));
+  // `o.options` contains options explicitly listed in `populateOptions`, like
+  // `match` and `limit`.
+  const populateOptions = Object.assign({}, o.options, userOptions, {
+    justOne: o.justOne,
+    isVirtual: o.isVirtual
+  });
+  populateOptions.$nullIfNotFound = o.isVirtual;
+  const populatedModel = o.populatedModel;
+
+  const originalIds = [].concat(o.rawIds);
+
+  // replace the original ids in our intermediate _ids structure
+  // with the documents found by query
+  o.allIds = [].concat(o.allIds);
+  assignRawDocsToIdStructure(o.rawIds, o.rawDocs, o.rawOrder, populateOptions);
+
+  // now update the original documents being populated using the
+  // result structure that contains real documents.
+  const docs = o.docs;
+  const rawIds = o.rawIds;
+  const options = o.options;
+  const count = o.count && o.isVirtual;
+  let i;
+  let setValueIndex = 0;
+
+  function setValue(val) {
+    ++setValueIndex;
+    if (count) {
+      return val;
+    }
+    if (val instanceof SkipPopulateValue) {
+      return val.val;
+    }
+    if (val === void 0) {
+      return val;
+    }
+
+    const _allIds = o.allIds[i];
+
+    if (o.path.endsWith('.$*')) {
+      // Skip maps re: gh-12494
+      return valueFilter(val, options, populateOptions, _allIds);
+    }
+
+    if (o.justOne === true && Array.isArray(val)) {
+      // Might be an embedded discriminator (re: gh-9244) with multiple models, so make sure to pick the right
+      // model before assigning.
+      const ret = [];
+      for (const doc of val) {
+        const _docPopulatedModel = leanPopulateMap.get(doc);
+        if (_docPopulatedModel == null || _docPopulatedModel === populatedModel) {
+          ret.push(doc);
+        }
+      }
+      // Since we don't want to have to create a new mongoosearray, make sure to
+      // modify the array in place
+      while (val.length > ret.length) {
+        Array.prototype.pop.apply(val, []);
+      }
+      for (let i = 0; i < ret.length; ++i) {
+        val[i] = ret[i];
+      }
+
+      return valueFilter(val[0], options, populateOptions, _allIds);
+    } else if (o.justOne === false && !Array.isArray(val)) {
+      return valueFilter([val], options, populateOptions, _allIds);
+    } else if (o.justOne === true && !Array.isArray(val) && Array.isArray(_allIds)) {
+      return valueFilter(val, options, populateOptions, val == null ? val : _allIds[setValueIndex - 1]);
+    }
+    return valueFilter(val, options, populateOptions, _allIds);
+  }
+
+  for (i = 0; i < docs.length; ++i) {
+    setValueIndex = 0;
+    const _path = o.path.endsWith('.$*') ? o.path.slice(0, -3) : o.path;
+    const existingVal = mpath.get(_path, docs[i], lookupLocalFields);
+    if (existingVal == null && !getVirtual(o.originalModel.schema, _path)) {
+      continue;
+    }
+
+    let valueToSet;
+    if (count) {
+      valueToSet = numDocs(rawIds[i]);
+    } else if (Array.isArray(o.match)) {
+      valueToSet = Array.isArray(rawIds[i]) ?
+        rawIds[i].filter(v => v == null || sift(o.match[i])(v)) :
+        [rawIds[i]].filter(v => v == null || sift(o.match[i])(v))[0];
+    } else {
+      valueToSet = rawIds[i];
+    }
+
+    // If we're populating a map, the existing value will be an object, so
+    // we need to transform again
+    const originalSchema = o.originalModel.schema;
+    const isDoc = get(docs[i], '$__', null) != null;
+    let isMap = isDoc ?
+      existingVal instanceof Map :
+      utils.isPOJO(existingVal);
+    // If we pass the first check, also make sure the local field's schematype
+    // is map (re: gh-6460)
+    isMap = isMap && get(originalSchema._getSchema(_path), '$isSchemaMap');
+    if (!o.isVirtual && isMap) {
+      const _keys = existingVal instanceof Map ?
+        Array.from(existingVal.keys()) :
+        Object.keys(existingVal);
+      valueToSet = valueToSet.reduce((cur, v, i) => {
+        cur.set(_keys[i], v);
+        return cur;
+      }, new Map());
+    }
+
+    if (isDoc && Array.isArray(valueToSet)) {
+      for (const val of valueToSet) {
+        if (val != null && val.$__ != null) {
+          val.$__.parent = docs[i];
+        }
+      }
+    } else if (isDoc && valueToSet != null && valueToSet.$__ != null) {
+      valueToSet.$__.parent = docs[i];
+    }
+
+    if (o.isVirtual && isDoc) {
+      docs[i].$populated(_path, o.justOne ? originalIds[0] : originalIds, o.allOptions);
+      // If virtual populate and doc is already init-ed, need to walk through
+      // the actual doc to set rather than setting `_doc` directly
+      if (Array.isArray(valueToSet)) {
+        valueToSet = valueToSet.map(v => v == null ? void 0 : v);
+      }
+      mpath.set(_path, valueToSet, docs[i], void 0, setValue, false);
+      continue;
+    }
+
+    const parts = _path.split('.');
+    let cur = docs[i];
+    for (let j = 0; j < parts.length - 1; ++j) {
+      // If we get to an array with a dotted path, like `arr.foo`, don't set
+      // `foo` on the array.
+      if (Array.isArray(cur) && !utils.isArrayIndex(parts[j])) {
+        break;
+      }
+
+      if (parts[j] === '$*') {
+        break;
+      }
+
+      if (cur[parts[j]] == null) {
+        // If nothing to set, avoid creating an unnecessary array. Otherwise
+        // we'll end up with a single doc in the array with only defaults.
+        // See gh-8342, gh-8455
+        const curPath = parts.slice(0, j + 1).join('.');
+        const schematype = originalSchema._getSchema(curPath);
+        if (valueToSet == null && schematype != null && schematype.$isMongooseArray) {
+          break;
+        }
+        cur[parts[j]] = {};
+      }
+      cur = cur[parts[j]];
+      // If the property in MongoDB is a primitive, we won't be able to populate
+      // the nested path, so skip it. See gh-7545
+      if (typeof cur !== 'object') {
+        break;
+      }
+    }
+    if (docs[i].$__) {
+      o.allOptions.options[populateModelSymbol] = o.allOptions.model;
+      docs[i].$populated(_path, o.unpopulatedValues[i], o.allOptions.options);
+
+      if (valueToSet != null && valueToSet.$__ != null) {
+        valueToSet.$__.wasPopulated = { value: o.unpopulatedValues[i] };
+      }
+
+      if (valueToSet instanceof Map && !valueToSet.$isMongooseMap) {
+        valueToSet = new MongooseMap(valueToSet, _path, docs[i], docs[i].schema.path(_path).$__schemaType);
+      }
+    }
+
+    // If lean, need to check that each individual virtual respects
+    // `justOne`, because you may have a populated virtual with `justOne`
+    // underneath an array. See gh-6867
+    mpath.set(_path, valueToSet, docs[i], lookupLocalFields, setValue, false);
+
+    if (docs[i].$__) {
+      markArraySubdocsPopulated(docs[i], [o.allOptions.options]);
+    }
+  }
+};
+
+function numDocs(v) {
+  if (Array.isArray(v)) {
+    // If setting underneath an array of populated subdocs, we may have an
+    // array of arrays. See gh-7573
+    if (v.some(el => Array.isArray(el) || el === null)) {
+      return v.map(el => {
+        if (el == null) {
+          return 0;
+        }
+        if (Array.isArray(el)) {
+          return el.filter(el => el != null).length;
+        }
+        return 1;
+      });
+    }
+    return v.filter(el => el != null).length;
+  }
+  return v == null ? 0 : 1;
+}
+
+/**
+ * 1) Apply backwards compatible find/findOne behavior to sub documents
+ *
+ *    find logic:
+ *      a) filter out non-documents
+ *      b) remove _id from sub docs when user specified
+ *
+ *    findOne
+ *      a) if no doc found, set to null
+ *      b) remove _id from sub docs when user specified
+ *
+ * 2) Remove _ids when specified by users query.
+ *
+ * background:
+ * _ids are left in the query even when user excludes them so
+ * that population mapping can occur.
+ * @param {Any} val
+ * @param {Object} assignmentOpts
+ * @param {Object} populateOptions
+ * @param {Function} [populateOptions.transform]
+ * @param {Boolean} allIds
+ * @api private
+ */
+
+function valueFilter(val, assignmentOpts, populateOptions, allIds) {
+  const userSpecifiedTransform = typeof populateOptions.transform === 'function';
+  const transform = userSpecifiedTransform ? populateOptions.transform : v => v;
+  if (Array.isArray(val)) {
+    // find logic
+    const ret = [];
+    const numValues = val.length;
+    for (let i = 0; i < numValues; ++i) {
+      let subdoc = val[i];
+      const _allIds = Array.isArray(allIds) ? allIds[i] : allIds;
+      if (!isPopulatedObject(subdoc) && (!populateOptions.retainNullValues || subdoc != null) && !userSpecifiedTransform) {
+        continue;
+      } else if (!populateOptions.retainNullValues && subdoc == null) {
+        continue;
+      } else if (userSpecifiedTransform) {
+        subdoc = transform(isPopulatedObject(subdoc) ? subdoc : null, _allIds);
+      }
+      maybeRemoveId(subdoc, assignmentOpts);
+      ret.push(subdoc);
+      if (assignmentOpts.originalLimit &&
+          ret.length >= assignmentOpts.originalLimit) {
+        break;
+      }
+    }
+
+    const rLen = ret.length;
+    // Since we don't want to have to create a new mongoosearray, make sure to
+    // modify the array in place
+    while (val.length > rLen) {
+      Array.prototype.pop.apply(val, []);
+    }
+    let i = 0;
+    if (utils.isMongooseArray(val)) {
+      for (i = 0; i < rLen; ++i) {
+        val.set(i, ret[i], true);
+      }
+    } else {
+      for (i = 0; i < rLen; ++i) {
+        val[i] = ret[i];
+      }
+    }
+    return val;
+  }
+
+  // findOne
+  if (isPopulatedObject(val) || utils.isPOJO(val)) {
+    maybeRemoveId(val, assignmentOpts);
+    return transform(val, allIds);
+  }
+  if (val instanceof Map) {
+    return val;
+  }
+
+  if (populateOptions.justOne === false) {
+    return [];
+  }
+
+  return val == null ? transform(val, allIds) : transform(null, allIds);
+}
+
+/**
+ * Remove _id from `subdoc` if user specified "lean" query option
+ * @param {Document} subdoc
+ * @param {Object} assignmentOpts
+ * @api private
+ */
+
+function maybeRemoveId(subdoc, assignmentOpts) {
+  if (subdoc != null && assignmentOpts.excludeId) {
+    if (typeof subdoc.$__setValue === 'function') {
+      delete subdoc._doc._id;
+    } else {
+      delete subdoc._id;
+    }
+  }
+}
+
+/**
+ * Determine if `obj` is something we can set a populated path to. Can be a
+ * document, a lean document, or an array/map that contains docs.
+ * @param {Any} obj
+ * @api private
+ */
+
+function isPopulatedObject(obj) {
+  if (obj == null) {
+    return false;
+  }
+
+  return Array.isArray(obj) ||
+    obj.$isMongooseMap ||
+    obj.$__ != null ||
+    leanPopulateMap.has(obj);
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/populate/createPopulateQueryFilter.js b/backend/node_modules/mongoose/lib/helpers/populate/createPopulateQueryFilter.js
new file mode 100644
index 0000000..47509a3
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/populate/createPopulateQueryFilter.js
@@ -0,0 +1,97 @@
+'use strict';
+
+const SkipPopulateValue = require('./skipPopulateValue');
+const parentPaths = require('../path/parentPaths');
+const { trusted } = require('../query/trusted');
+const hasDollarKeys = require('../query/hasDollarKeys');
+
+module.exports = function createPopulateQueryFilter(ids, _match, _foreignField, model, skipInvalidIds) {
+  const match = _formatMatch(_match);
+
+  if (_foreignField.size === 1) {
+    const foreignField = Array.from(_foreignField)[0];
+    const foreignSchemaType = model.schema.path(foreignField);
+    if (foreignField !== '_id' || !match['_id']) {
+      ids = _filterInvalidIds(ids, foreignSchemaType, skipInvalidIds);
+      match[foreignField] = trusted({ $in: ids });
+    } else if (foreignField === '_id' && match['_id']) {
+      const userSpecifiedMatch = hasDollarKeys(match[foreignField]) ?
+        match[foreignField] :
+        { $eq: match[foreignField] };
+      match[foreignField] = { ...trusted({ $in: ids }), ...userSpecifiedMatch };
+    }
+
+    const _parentPaths = parentPaths(foreignField);
+    for (let i = 0; i < _parentPaths.length - 1; ++i) {
+      const cur = _parentPaths[i];
+      if (match[cur] != null && match[cur].$elemMatch != null) {
+        match[cur].$elemMatch[foreignField.slice(cur.length + 1)] = trusted({ $in: ids });
+        delete match[foreignField];
+        break;
+      }
+    }
+  } else {
+    const $or = [];
+    if (Array.isArray(match.$or)) {
+      match.$and = [{ $or: match.$or }, { $or: $or }];
+      delete match.$or;
+    } else {
+      match.$or = $or;
+    }
+    for (const foreignField of _foreignField) {
+      if (foreignField !== '_id' || !match['_id']) {
+        const foreignSchemaType = model.schema.path(foreignField);
+        ids = _filterInvalidIds(ids, foreignSchemaType, skipInvalidIds);
+        $or.push({ [foreignField]: { $in: ids } });
+      } else if (foreignField === '_id' && match['_id']) {
+        const userSpecifiedMatch = hasDollarKeys(match[foreignField]) ?
+          match[foreignField] :
+          { $eq: match[foreignField] };
+        match[foreignField] = { ...trusted({ $in: ids }), ...userSpecifiedMatch };
+      }
+    }
+  }
+
+  return match;
+};
+
+/**
+ * Optionally filter out invalid ids that don't conform to foreign field's schema
+ * to avoid cast errors (gh-7706)
+ * @param {Array} ids
+ * @param {SchemaType} foreignSchemaType
+ * @param {Boolean} [skipInvalidIds]
+ * @api private
+ */
+
+function _filterInvalidIds(ids, foreignSchemaType, skipInvalidIds) {
+  ids = ids.filter(v => !(v instanceof SkipPopulateValue));
+  if (!skipInvalidIds) {
+    return ids;
+  }
+  return ids.filter(id => {
+    try {
+      foreignSchemaType.cast(id);
+      return true;
+    } catch (err) {
+      return false;
+    }
+  });
+}
+
+/**
+ * Format `mod.match` given that it may be an array that we need to $or if
+ * the client has multiple docs with match functions
+ * @param {Array|Any} match
+ * @api private
+ */
+
+function _formatMatch(match) {
+  if (Array.isArray(match)) {
+    if (match.length > 1) {
+      return { $or: [].concat(match.map(m => Object.assign({}, m))) };
+    }
+    return Object.assign({}, match[0]);
+  }
+  return Object.assign({}, match);
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/populate/getModelsMapForPopulate.js b/backend/node_modules/mongoose/lib/helpers/populate/getModelsMapForPopulate.js
new file mode 100644
index 0000000..f90bd0e
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/populate/getModelsMapForPopulate.js
@@ -0,0 +1,766 @@
+'use strict';
+
+const MongooseError = require('../../error/index');
+const SkipPopulateValue = require('./skipPopulateValue');
+const clone = require('../clone');
+const get = require('../get');
+const getDiscriminatorByValue = require('../discriminator/getDiscriminatorByValue');
+const getConstructorName = require('../getConstructorName');
+const getSchemaTypes = require('./getSchemaTypes');
+const getVirtual = require('./getVirtual');
+const lookupLocalFields = require('./lookupLocalFields');
+const mpath = require('mpath');
+const modelNamesFromRefPath = require('./modelNamesFromRefPath');
+const utils = require('../../utils');
+
+const modelSymbol = require('../symbols').modelSymbol;
+const populateModelSymbol = require('../symbols').populateModelSymbol;
+const schemaMixedSymbol = require('../../schema/symbols').schemaMixedSymbol;
+const StrictPopulate = require('../../error/strictPopulate');
+
+module.exports = function getModelsMapForPopulate(model, docs, options) {
+  let doc;
+  const len = docs.length;
+  const map = [];
+  const modelNameFromQuery = options.model && options.model.modelName || options.model;
+  let schema;
+  let refPath;
+  let modelNames;
+  const available = {};
+
+  const modelSchema = model.schema;
+
+  // Populating a nested path should always be a no-op re: #9073.
+  // People shouldn't do this, but apparently they do.
+  if (options._localModel != null && options._localModel.schema.nested[options.path]) {
+    return [];
+  }
+
+  const _virtualRes = getVirtual(model.schema, options.path);
+  const virtual = _virtualRes == null ? null : _virtualRes.virtual;
+  if (virtual != null) {
+    return _virtualPopulate(model, docs, options, _virtualRes);
+  }
+
+  let allSchemaTypes = getSchemaTypes(model, modelSchema, null, options.path);
+  allSchemaTypes = Array.isArray(allSchemaTypes) ? allSchemaTypes : [allSchemaTypes].filter(v => v != null);
+
+  const isStrictPopulateDisabled = options.strictPopulate === false || options.options?.strictPopulate === false;
+  if (!isStrictPopulateDisabled && allSchemaTypes.length === 0 && options._localModel != null) {
+    return new StrictPopulate(options._fullPath || options.path);
+  }
+
+  for (let i = 0; i < len; i++) {
+    doc = docs[i];
+    let justOne = null;
+
+    if (doc.$__ != null && doc.populated(options.path)) {
+      const forceRepopulate = options.forceRepopulate != null ? options.forceRepopulate : doc.constructor.base.options.forceRepopulate;
+      if (forceRepopulate === false) {
+        continue;
+      }
+    }
+
+    const docSchema = doc != null && doc.$__ != null ? doc.$__schema : modelSchema;
+    schema = getSchemaTypes(model, docSchema, doc, options.path);
+
+    // Special case: populating a path that's a DocumentArray unless
+    // there's an explicit `ref` or `refPath` re: gh-8946
+    if (schema != null &&
+        schema.$isMongooseDocumentArray &&
+        schema.options.ref == null &&
+        schema.options.refPath == null) {
+      continue;
+    }
+    const isUnderneathDocArray = schema && schema.$parentSchemaDocArray;
+    if (isUnderneathDocArray && get(options, 'options.sort') != null) {
+      return new MongooseError('Cannot populate with `sort` on path ' + options.path +
+        ' because it is a subproperty of a document array');
+    }
+
+    modelNames = null;
+    let isRefPath = false;
+    let normalizedRefPath = null;
+    let schemaOptions = null;
+    let modelNamesInOrder = null;
+
+    if (schema != null && schema.instance === 'Embedded') {
+      if (schema.options.ref) {
+        const data = {
+          localField: options.path + '._id',
+          foreignField: '_id',
+          justOne: true
+        };
+        const res = _getModelNames(doc, schema, modelNameFromQuery, model);
+
+        const unpopulatedValue = mpath.get(options.path, doc);
+        const id = mpath.get('_id', unpopulatedValue);
+        addModelNamesToMap(model, map, available, res.modelNames, options, data, id, doc, schemaOptions, unpopulatedValue);
+      }
+      // No-op if no `ref` set. See gh-11538
+      continue;
+    }
+
+    if (Array.isArray(schema)) {
+      const schemasArray = schema;
+      for (const _schema of schemasArray) {
+        let _modelNames;
+        let res;
+        try {
+          res = _getModelNames(doc, _schema, modelNameFromQuery, model);
+          _modelNames = res.modelNames;
+          isRefPath = isRefPath || res.isRefPath;
+          normalizedRefPath = normalizedRefPath || res.refPath;
+          justOne = res.justOne;
+        } catch (error) {
+          return error;
+        }
+
+        if (isRefPath && !res.isRefPath) {
+          continue;
+        }
+        if (!_modelNames) {
+          continue;
+        }
+        modelNames = modelNames || [];
+        for (const modelName of _modelNames) {
+          if (modelNames.indexOf(modelName) === -1) {
+            modelNames.push(modelName);
+          }
+        }
+      }
+    } else {
+      try {
+        const res = _getModelNames(doc, schema, modelNameFromQuery, model);
+        modelNames = res.modelNames;
+        isRefPath = res.isRefPath;
+        normalizedRefPath = normalizedRefPath || res.refPath;
+        justOne = res.justOne;
+        schemaOptions = get(schema, 'options.populate', null);
+        // Dedupe, because `refPath` can return duplicates of the same model name,
+        // and that causes perf issues.
+        if (isRefPath) {
+          modelNamesInOrder = modelNames;
+          modelNames = Array.from(new Set(modelNames));
+        }
+      } catch (error) {
+        return error;
+      }
+
+      if (!modelNames) {
+        continue;
+      }
+    }
+
+    const data = {};
+    const localField = options.path;
+    const foreignField = '_id';
+
+    // `justOne = null` means we don't know from the schema whether the end
+    // result should be an array or a single doc. This can result from
+    // populating a POJO using `Model.populate()`
+    if ('justOne' in options && options.justOne !== void 0) {
+      justOne = options.justOne;
+    } else if (schema && !schema[schemaMixedSymbol]) {
+      // Skip Mixed types because we explicitly don't do casting on those.
+      if (options.path.endsWith('.' + schema.path) || options.path === schema.path) {
+        justOne = Array.isArray(schema) ?
+          schema.every(schema => !schema.$isMongooseArray) :
+          !schema.$isMongooseArray;
+      }
+    }
+
+    if (!modelNames) {
+      continue;
+    }
+
+    data.isVirtual = false;
+    data.justOne = justOne;
+    data.localField = localField;
+    data.foreignField = foreignField;
+
+    // Get local fields
+    const ret = _getLocalFieldValues(doc, localField, model, options, null, schema);
+
+    const id = String(utils.getValue(foreignField, doc));
+    options._docs[id] = Array.isArray(ret) ? ret.slice() : ret;
+
+    let match = get(options, 'match', null);
+
+    const hasMatchFunction = typeof match === 'function';
+    if (hasMatchFunction) {
+      match = match.call(doc, doc);
+    }
+    throwOn$where(match);
+    data.match = match;
+    data.hasMatchFunction = hasMatchFunction;
+    data.isRefPath = isRefPath;
+    data.modelNamesInOrder = modelNamesInOrder;
+
+    if (isRefPath) {
+      const embeddedDiscriminatorModelNames = _findRefPathForDiscriminators(doc,
+        modelSchema, data, options, normalizedRefPath, ret);
+
+      modelNames = embeddedDiscriminatorModelNames || modelNames;
+    }
+
+    try {
+      addModelNamesToMap(model, map, available, modelNames, options, data, ret, doc, schemaOptions);
+    } catch (err) {
+      return err;
+    }
+  }
+  return map;
+
+  function _getModelNames(doc, schema, modelNameFromQuery, model) {
+    let modelNames;
+    let isRefPath = false;
+    let justOne = null;
+
+    const originalSchema = schema;
+    if (schema && schema.instance === 'Array') {
+      schema = schema.caster;
+    }
+    if (schema && schema.$isSchemaMap) {
+      schema = schema.$__schemaType;
+    }
+
+    const ref = schema && schema.options && schema.options.ref;
+    refPath = schema && schema.options && schema.options.refPath;
+    if (schema != null &&
+        schema[schemaMixedSymbol] &&
+        !ref &&
+        !refPath &&
+        !modelNameFromQuery) {
+      return { modelNames: null };
+    }
+
+    if (modelNameFromQuery) {
+      modelNames = [modelNameFromQuery]; // query options
+    } else if (refPath != null) {
+      if (typeof refPath === 'function') {
+        const subdocPath = options.path.slice(0, options.path.length - schema.path.length - 1);
+        const vals = mpath.get(subdocPath, doc, lookupLocalFields);
+        const subdocsBeingPopulated = Array.isArray(vals) ?
+          utils.array.flatten(vals) :
+          (vals ? [vals] : []);
+
+        modelNames = new Set();
+        for (const subdoc of subdocsBeingPopulated) {
+          refPath = refPath.call(subdoc, subdoc, options.path);
+          modelNamesFromRefPath(refPath, doc, options.path, modelSchema, options._queryProjection).
+            forEach(name => modelNames.add(name));
+        }
+        modelNames = Array.from(modelNames);
+      } else {
+        modelNames = modelNamesFromRefPath(refPath, doc, options.path, modelSchema, options._queryProjection);
+      }
+
+      isRefPath = true;
+    } else {
+      let ref;
+      let refPath;
+      let schemaForCurrentDoc;
+      let discriminatorValue;
+      let modelForCurrentDoc = model;
+      const discriminatorKey = model.schema.options.discriminatorKey;
+
+      if (!schema && discriminatorKey && (discriminatorValue = utils.getValue(discriminatorKey, doc))) {
+        // `modelNameForFind` is the discriminator value, so we might need
+        // find the discriminated model name
+        const discriminatorModel = getDiscriminatorByValue(model.discriminators, discriminatorValue) || model;
+        if (discriminatorModel != null) {
+          modelForCurrentDoc = discriminatorModel;
+        } else {
+          try {
+            modelForCurrentDoc = _getModelFromConn(model.db, discriminatorValue);
+          } catch (error) {
+            return error;
+          }
+        }
+
+        schemaForCurrentDoc = modelForCurrentDoc.schema._getSchema(options.path);
+
+        if (schemaForCurrentDoc && schemaForCurrentDoc.caster) {
+          schemaForCurrentDoc = schemaForCurrentDoc.caster;
+        }
+      } else {
+        schemaForCurrentDoc = schema;
+      }
+
+      if (originalSchema && originalSchema.path.endsWith('.$*')) {
+        justOne = !originalSchema.$isMongooseArray && !originalSchema._arrayPath;
+      } else if (schemaForCurrentDoc != null) {
+        justOne = !schemaForCurrentDoc.$isMongooseArray && !schemaForCurrentDoc._arrayPath;
+      }
+
+      if ((ref = get(schemaForCurrentDoc, 'options.ref')) != null) {
+        if (schemaForCurrentDoc != null &&
+            typeof ref === 'function' &&
+            options.path.endsWith('.' + schemaForCurrentDoc.path)) {
+          // Ensure correct context for ref functions: subdoc, not top-level doc. See gh-8469
+          modelNames = new Set();
+
+          const subdocPath = options.path.slice(0, options.path.length - schemaForCurrentDoc.path.length - 1);
+          const vals = mpath.get(subdocPath, doc, lookupLocalFields);
+          const subdocsBeingPopulated = Array.isArray(vals) ?
+            utils.array.flatten(vals) :
+            (vals ? [vals] : []);
+          for (const subdoc of subdocsBeingPopulated) {
+            modelNames.add(handleRefFunction(ref, subdoc));
+          }
+
+          if (subdocsBeingPopulated.length === 0) {
+            modelNames = [handleRefFunction(ref, doc)];
+          } else {
+            modelNames = Array.from(modelNames);
+          }
+        } else {
+          ref = handleRefFunction(ref, doc);
+          modelNames = [ref];
+        }
+      } else if ((schemaForCurrentDoc = get(schema, 'options.refPath')) != null) {
+        isRefPath = true;
+        if (typeof refPath === 'function') {
+          const subdocPath = options.path.slice(0, options.path.length - schemaForCurrentDoc.path.length - 1);
+          const vals = mpath.get(subdocPath, doc, lookupLocalFields);
+          const subdocsBeingPopulated = Array.isArray(vals) ?
+            utils.array.flatten(vals) :
+            (vals ? [vals] : []);
+
+          modelNames = new Set();
+          for (const subdoc of subdocsBeingPopulated) {
+            refPath = refPath.call(subdoc, subdoc, options.path);
+            modelNamesFromRefPath(refPath, doc, options.path, modelSchema, options._queryProjection).
+              forEach(name => modelNames.add(name));
+          }
+          modelNames = Array.from(modelNames);
+        } else {
+          modelNames = modelNamesFromRefPath(refPath, doc, options.path, modelSchema, options._queryProjection);
+        }
+      }
+    }
+
+    if (!modelNames) {
+      // `Model.populate()` on a POJO with no known local model. Default to using the `Model`
+      if (options._localModel == null) {
+        modelNames = [model.modelName];
+      } else {
+        return { modelNames: modelNames, justOne: justOne, isRefPath: isRefPath, refPath: refPath };
+      }
+    }
+
+    if (!Array.isArray(modelNames)) {
+      modelNames = [modelNames];
+    }
+
+    return { modelNames: modelNames, justOne: justOne, isRefPath: isRefPath, refPath: refPath };
+  }
+};
+
+/*!
+ * ignore
+ */
+
+function _virtualPopulate(model, docs, options, _virtualRes) {
+  const map = [];
+  const available = {};
+  const virtual = _virtualRes.virtual;
+
+  for (const doc of docs) {
+    let modelNames = null;
+    const data = {};
+
+    // localField and foreignField
+    let localField;
+    const virtualPrefix = _virtualRes.nestedSchemaPath ?
+      _virtualRes.nestedSchemaPath + '.' : '';
+    if (typeof options.localField === 'string') {
+      localField = options.localField;
+    } else if (typeof virtual.options.localField === 'function') {
+      localField = virtualPrefix + virtual.options.localField.call(doc, doc);
+    } else if (Array.isArray(virtual.options.localField)) {
+      localField = virtual.options.localField.map(field => virtualPrefix + field);
+    } else {
+      localField = virtualPrefix + virtual.options.localField;
+    }
+    data.count = virtual.options.count;
+
+    if (virtual.options.skip != null && !options.hasOwnProperty('skip')) {
+      options.skip = virtual.options.skip;
+    }
+    if (virtual.options.limit != null && !options.hasOwnProperty('limit')) {
+      options.limit = virtual.options.limit;
+    }
+    if (virtual.options.perDocumentLimit != null && !options.hasOwnProperty('perDocumentLimit')) {
+      options.perDocumentLimit = virtual.options.perDocumentLimit;
+    }
+    let foreignField = virtual.options.foreignField;
+
+    if (!localField || !foreignField) {
+      return new MongooseError(`Cannot populate virtual \`${options.path}\` on model \`${model.modelName}\`, because options \`localField\` and / or \`foreignField\` are missing`);
+    }
+
+    if (typeof localField === 'function') {
+      localField = localField.call(doc, doc);
+    }
+    if (typeof foreignField === 'function') {
+      foreignField = foreignField.call(doc, doc);
+    }
+
+    data.isRefPath = false;
+
+    // `justOne = null` means we don't know from the schema whether the end
+    // result should be an array or a single doc. This can result from
+    // populating a POJO using `Model.populate()`
+    let justOne = null;
+    if ('justOne' in options && options.justOne !== void 0) {
+      justOne = options.justOne;
+    }
+
+    modelNames = virtual._getModelNamesForPopulate(doc);
+    if (virtual.options.refPath) {
+      justOne = !!virtual.options.justOne;
+      data.isRefPath = true;
+    } else if (virtual.options.ref) {
+      justOne = !!virtual.options.justOne;
+    }
+
+    data.isVirtual = true;
+    data.virtual = virtual;
+    data.justOne = justOne;
+
+    // `match`
+    const baseMatch = get(data, 'virtual.options.match', null) ||
+      get(data, 'virtual.options.options.match', null);
+    let match = get(options, 'match', null) || baseMatch;
+
+    let hasMatchFunction = typeof match === 'function';
+    if (hasMatchFunction) {
+      match = match.call(doc, doc, data.virtual);
+    }
+
+    if (Array.isArray(localField) && Array.isArray(foreignField) && localField.length === foreignField.length) {
+      match = Object.assign({}, match);
+      for (let i = 1; i < localField.length; ++i) {
+        match[foreignField[i]] = convertTo_id(mpath.get(localField[i], doc, lookupLocalFields), model.schema);
+        hasMatchFunction = true;
+      }
+
+      localField = localField[0];
+      foreignField = foreignField[0];
+    }
+    data.localField = localField;
+    data.foreignField = foreignField;
+    data.match = match;
+    data.hasMatchFunction = hasMatchFunction;
+
+    throwOn$where(match);
+
+    // Get local fields
+    const ret = _getLocalFieldValues(doc, localField, model, options, virtual);
+
+    try {
+      addModelNamesToMap(model, map, available, modelNames, options, data, ret, doc);
+    } catch (err) {
+      return err;
+    }
+  }
+
+  return map;
+}
+
+/*!
+ * ignore
+ */
+
+function addModelNamesToMap(model, map, available, modelNames, options, data, ret, doc, schemaOptions, unpopulatedValue) {
+  // `PopulateOptions#connection`: if the model is passed as a string, the
+  // connection matters because different connections have different models.
+  const connection = options.connection != null ? options.connection : model.db;
+
+  unpopulatedValue = unpopulatedValue === void 0 ? ret : unpopulatedValue;
+  if (Array.isArray(unpopulatedValue)) {
+    unpopulatedValue = utils.cloneArrays(unpopulatedValue);
+  }
+
+  if (modelNames == null) {
+    return;
+  }
+
+  const flatModelNames = utils.array.flatten(modelNames);
+  let k = flatModelNames.length;
+  while (k--) {
+    let modelName = flatModelNames[k];
+    if (modelName == null) {
+      continue;
+    }
+
+    let Model;
+    if (options.model && options.model[modelSymbol]) {
+      Model = options.model;
+    } else if (modelName[modelSymbol]) {
+      Model = modelName;
+      modelName = Model.modelName;
+    } else {
+      try {
+        Model = _getModelFromConn(connection, modelName);
+      } catch (err) {
+        if (ret !== void 0) {
+          throw err;
+        }
+        Model = null;
+      }
+    }
+
+    let ids = ret;
+
+    const modelNamesForRefPath = data.modelNamesInOrder ? data.modelNamesInOrder : modelNames;
+    if (data.isRefPath && Array.isArray(ret) && ret.length === modelNamesForRefPath.length) {
+      ids = matchIdsToRefPaths(ret, modelNamesForRefPath, modelName);
+    }
+
+    const perDocumentLimit = options.perDocumentLimit == null ?
+      get(options, 'options.perDocumentLimit', null) :
+      options.perDocumentLimit;
+
+    if (!available[modelName] || perDocumentLimit != null) {
+      const currentOptions = {
+        model: Model
+      };
+      if (data.isVirtual && get(data.virtual, 'options.options')) {
+        currentOptions.options = clone(data.virtual.options.options);
+      } else if (schemaOptions != null) {
+        currentOptions.options = Object.assign({}, schemaOptions);
+      }
+      utils.merge(currentOptions, options);
+
+      // Used internally for checking what model was used to populate this
+      // path.
+      options[populateModelSymbol] = Model;
+      currentOptions[populateModelSymbol] = Model;
+      available[modelName] = {
+        model: Model,
+        options: currentOptions,
+        match: data.hasMatchFunction ? [data.match] : data.match,
+        docs: [doc],
+        ids: [ids],
+        allIds: [ret],
+        unpopulatedValues: [unpopulatedValue],
+        localField: new Set([data.localField]),
+        foreignField: new Set([data.foreignField]),
+        justOne: data.justOne,
+        isVirtual: data.isVirtual,
+        virtual: data.virtual,
+        count: data.count,
+        [populateModelSymbol]: Model
+      };
+      map.push(available[modelName]);
+    } else {
+      available[modelName].localField.add(data.localField);
+      available[modelName].foreignField.add(data.foreignField);
+      available[modelName].docs.push(doc);
+      available[modelName].ids.push(ids);
+      available[modelName].allIds.push(ret);
+      available[modelName].unpopulatedValues.push(unpopulatedValue);
+      if (data.hasMatchFunction) {
+        available[modelName].match.push(data.match);
+      }
+    }
+  }
+}
+
+function _getModelFromConn(conn, modelName) {
+  /* If this connection has a parent from `useDb()`, bubble up to parent's models */
+  if (conn.models[modelName] == null && conn._parent != null) {
+    return _getModelFromConn(conn._parent, modelName);
+  }
+
+  return conn.model(modelName);
+}
+
+function matchIdsToRefPaths(ids, refPaths, refPathToFind) {
+  if (!Array.isArray(refPaths)) {
+    return refPaths === refPathToFind
+      ? Array.isArray(ids)
+        ? utils.array.flatten(ids)
+        : [ids]
+      : [];
+  }
+  if (Array.isArray(ids) && Array.isArray(refPaths)) {
+    return ids.flatMap((id, index) => matchIdsToRefPaths(id, refPaths[index], refPathToFind));
+  }
+  return [];
+}
+
+/*!
+ * ignore
+ */
+
+function handleRefFunction(ref, doc) {
+  if (typeof ref === 'function' && !ref[modelSymbol]) {
+    return ref.call(doc, doc);
+  }
+  return ref;
+}
+
+/*!
+ * ignore
+ */
+
+function _getLocalFieldValues(doc, localField, model, options, virtual, schema) {
+  // Get Local fields
+  const localFieldPathType = model.schema._getPathType(localField);
+  const localFieldPath = localFieldPathType === 'real' ?
+    model.schema.path(localField) :
+    localFieldPathType.schema;
+  const localFieldGetters = localFieldPath && localFieldPath.getters ?
+    localFieldPath.getters : [];
+
+  localField = localFieldPath != null && localFieldPath.instance === 'Embedded' ? localField + '._id' : localField;
+
+  const _populateOptions = get(options, 'options', {});
+
+  const getters = 'getters' in _populateOptions ?
+    _populateOptions.getters :
+    get(virtual, 'options.getters', false);
+  if (localFieldGetters.length !== 0 && getters) {
+    const hydratedDoc = (doc.$__ != null) ? doc : model.hydrate(doc);
+    const localFieldValue = utils.getValue(localField, doc);
+    if (Array.isArray(localFieldValue)) {
+      const localFieldHydratedValue = utils.getValue(localField.split('.').slice(0, -1), hydratedDoc);
+      return localFieldValue.map((localFieldArrVal, localFieldArrIndex) =>
+        localFieldPath.applyGetters(localFieldArrVal, localFieldHydratedValue[localFieldArrIndex]));
+    } else {
+      return localFieldPath.applyGetters(localFieldValue, hydratedDoc);
+    }
+  } else {
+    return convertTo_id(mpath.get(localField, doc, lookupLocalFields), schema);
+  }
+}
+
+/**
+ * Retrieve the _id of `val` if a Document or Array of Documents.
+ *
+ * @param {Array|Document|Any} val
+ * @param {Schema} schema
+ * @return {Array|Document|Any}
+ * @api private
+ */
+
+function convertTo_id(val, schema) {
+  if (val != null && val.$__ != null) {
+    return val._doc._id;
+  }
+  if (val != null && val._id != null && (schema == null || !schema.$isSchemaMap)) {
+    return val._id;
+  }
+
+  if (Array.isArray(val)) {
+    const rawVal = val.__array != null ? val.__array : val;
+    for (let i = 0; i < rawVal.length; ++i) {
+      if (rawVal[i] != null && rawVal[i].$__ != null) {
+        rawVal[i] = rawVal[i]._doc._id;
+      }
+    }
+    if (utils.isMongooseArray(val) && val.$schema()) {
+      return val.$schema()._castForPopulate(val, val.$parent());
+    }
+
+    return [].concat(val);
+  }
+
+  // `populate('map')` may be an object if populating on a doc that hasn't
+  // been hydrated yet
+  if (getConstructorName(val) === 'Object' &&
+      // The intent here is we should only flatten the object if we expect
+      // to get a Map in the end. Avoid doing this for mixed types.
+      (schema == null || schema[schemaMixedSymbol] == null)) {
+    const ret = [];
+    for (const key of Object.keys(val)) {
+      ret.push(val[key]);
+    }
+    return ret;
+  }
+  // If doc has already been hydrated, e.g. `doc.populate('map')`
+  // then `val` will already be a map
+  if (val instanceof Map) {
+    return Array.from(val.values());
+  }
+
+  return val;
+}
+
+/*!
+ * ignore
+ */
+
+function _findRefPathForDiscriminators(doc, modelSchema, data, options, normalizedRefPath, ret) {
+  // Re: gh-8452. Embedded discriminators may not have `refPath`, so clear
+  // out embedded discriminator docs that don't have a `refPath` on the
+  // populated path.
+  if (!data.isRefPath || normalizedRefPath == null) {
+    return;
+  }
+
+  const pieces = normalizedRefPath.split('.');
+  let cur = '';
+  let modelNames = void 0;
+  for (let i = 0; i < pieces.length; ++i) {
+    const piece = pieces[i];
+    cur = cur + (cur.length === 0 ? '' : '.') + piece;
+    const schematype = modelSchema.path(cur);
+    if (schematype != null &&
+        schematype.$isMongooseArray &&
+        schematype.caster.discriminators != null &&
+        Object.keys(schematype.caster.discriminators).length !== 0) {
+      const subdocs = utils.getValue(cur, doc);
+      const remnant = options.path.substring(cur.length + 1);
+      const discriminatorKey = schematype.caster.schema.options.discriminatorKey;
+      modelNames = [];
+      for (const subdoc of subdocs) {
+        const discriminatorName = utils.getValue(discriminatorKey, subdoc);
+        const discriminator = schematype.caster.discriminators[discriminatorName];
+        const discriminatorSchema = discriminator && discriminator.schema;
+        if (discriminatorSchema == null) {
+          continue;
+        }
+        const _path = discriminatorSchema.path(remnant);
+        if (_path == null || _path.options.refPath == null) {
+          const docValue = utils.getValue(data.localField.substring(cur.length + 1), subdoc);
+          ret.forEach((v, i) => {
+            if (v === docValue) {
+              ret[i] = SkipPopulateValue(v);
+            }
+          });
+          continue;
+        }
+        const modelName = utils.getValue(pieces.slice(i + 1).join('.'), subdoc);
+        modelNames.push(modelName);
+      }
+    }
+  }
+
+  return modelNames;
+}
+
+/**
+ * Throw an error if there are any $where keys
+ */
+
+function throwOn$where(match) {
+  if (match == null) {
+    return;
+  }
+  if (typeof match !== 'object') {
+    return;
+  }
+  for (const key of Object.keys(match)) {
+    if (key === '$where') {
+      throw new MongooseError('Cannot use $where filter with populate() match');
+    }
+    if (match[key] != null && typeof match[key] === 'object') {
+      throwOn$where(match[key]);
+    }
+  }
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/populate/getSchemaTypes.js b/backend/node_modules/mongoose/lib/helpers/populate/getSchemaTypes.js
new file mode 100644
index 0000000..8cbbcaf
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/populate/getSchemaTypes.js
@@ -0,0 +1,229 @@
+'use strict';
+
+/*!
+ * ignore
+ */
+
+const Mixed = require('../../schema/mixed');
+const get = require('../get');
+const getDiscriminatorByValue = require('../discriminator/getDiscriminatorByValue');
+const leanPopulateMap = require('./leanPopulateMap');
+const mpath = require('mpath');
+
+const populateModelSymbol = require('../symbols').populateModelSymbol;
+
+/**
+ * Given a model and its schema, find all possible schema types for `path`,
+ * including searching through discriminators. If `doc` is specified, will
+ * use the doc's values for discriminator keys when searching, otherwise
+ * will search all discriminators.
+ *
+ * @param {Model} model
+ * @param {Schema} schema
+ * @param {Object} doc POJO
+ * @param {string} path
+ * @api private
+ */
+
+module.exports = function getSchemaTypes(model, schema, doc, path) {
+  const pathschema = schema.path(path);
+  const topLevelDoc = doc;
+  if (pathschema) {
+    return pathschema;
+  }
+
+  const discriminatorKey = schema.discriminatorMapping &&
+    schema.discriminatorMapping.key;
+  if (discriminatorKey && model != null) {
+    if (doc != null && doc[discriminatorKey] != null) {
+      const discriminator = getDiscriminatorByValue(model.discriminators, doc[discriminatorKey]);
+      schema = discriminator ? discriminator.schema : schema;
+    } else if (model.discriminators != null) {
+      return Object.keys(model.discriminators).reduce((arr, name) => {
+        const disc = model.discriminators[name];
+        return arr.concat(getSchemaTypes(disc, disc.schema, null, path));
+      }, []);
+    }
+  }
+
+  function search(parts, schema, subdoc, nestedPath) {
+    let p = parts.length + 1;
+    let foundschema;
+    let trypath;
+
+    while (p--) {
+      trypath = parts.slice(0, p).join('.');
+      foundschema = schema.path(trypath);
+      if (foundschema == null) {
+        continue;
+      }
+
+      if (foundschema.caster) {
+        // array of Mixed?
+        if (foundschema.caster instanceof Mixed) {
+          return foundschema.caster;
+        }
+
+        let schemas = null;
+        if (foundschema.schema != null && foundschema.schema.discriminators != null) {
+          const discriminators = foundschema.schema.discriminators;
+          const discriminatorKeyPath = trypath + '.' +
+            foundschema.schema.options.discriminatorKey;
+          const keys = subdoc ? mpath.get(discriminatorKeyPath, subdoc) || [] : [];
+          schemas = Object.keys(discriminators).
+            reduce(function(cur, discriminator) {
+              const tiedValue = discriminators[discriminator].discriminatorMapping.value;
+              if (doc == null || keys.indexOf(discriminator) !== -1 || keys.indexOf(tiedValue) !== -1) {
+                cur.push(discriminators[discriminator]);
+              }
+              return cur;
+            }, []);
+        }
+
+        // Now that we found the array, we need to check if there
+        // are remaining document paths to look up for casting.
+        // Also we need to handle array.$.path since schema.path
+        // doesn't work for that.
+        // If there is no foundschema.schema we are dealing with
+        // a path like array.$
+        if (p !== parts.length && foundschema.schema) {
+          let ret;
+          if (parts[p] === '$') {
+            if (p + 1 === parts.length) {
+              // comments.$
+              return foundschema;
+            }
+            // comments.$.comments.$.title
+            ret = search(
+              parts.slice(p + 1),
+              schema,
+              subdoc ? mpath.get(trypath, subdoc) : null,
+              nestedPath.concat(parts.slice(0, p))
+            );
+            if (ret) {
+              ret.$parentSchemaDocArray = ret.$parentSchemaDocArray ||
+                (foundschema.schema.$isSingleNested ? null : foundschema);
+            }
+            return ret;
+          }
+
+          if (schemas != null && schemas.length > 0) {
+            ret = [];
+            for (const schema of schemas) {
+              const _ret = search(
+                parts.slice(p),
+                schema,
+                subdoc ? mpath.get(trypath, subdoc) : null,
+                nestedPath.concat(parts.slice(0, p))
+              );
+              if (_ret != null) {
+                _ret.$parentSchemaDocArray = _ret.$parentSchemaDocArray ||
+                  (foundschema.schema.$isSingleNested ? null : foundschema);
+                if (_ret.$parentSchemaDocArray) {
+                  ret.$parentSchemaDocArray = _ret.$parentSchemaDocArray;
+                }
+                ret.push(_ret);
+              }
+            }
+            return ret;
+          } else {
+            ret = search(
+              parts.slice(p),
+              foundschema.schema,
+              subdoc ? mpath.get(trypath, subdoc) : null,
+              nestedPath.concat(parts.slice(0, p))
+            );
+
+            if (ret) {
+              ret.$parentSchemaDocArray = ret.$parentSchemaDocArray ||
+                (foundschema.schema.$isSingleNested ? null : foundschema);
+            }
+            return ret;
+          }
+        } else if (p !== parts.length &&
+            foundschema.$isMongooseArray &&
+            foundschema.casterConstructor.$isMongooseArray) {
+          // Nested arrays. Drill down to the bottom of the nested array.
+          let type = foundschema;
+          while (type.$isMongooseArray && !type.$isMongooseDocumentArray) {
+            type = type.casterConstructor;
+          }
+
+          const ret = search(
+            parts.slice(p),
+            type.schema,
+            null,
+            nestedPath.concat(parts.slice(0, p))
+          );
+          if (ret != null) {
+            return ret;
+          }
+
+          if (type.schema.discriminators) {
+            const discriminatorPaths = [];
+            for (const discriminatorName of Object.keys(type.schema.discriminators)) {
+              const _schema = type.schema.discriminators[discriminatorName] || type.schema;
+              const ret = search(parts.slice(p), _schema, null, nestedPath.concat(parts.slice(0, p)));
+              if (ret != null) {
+                discriminatorPaths.push(ret);
+              }
+            }
+            if (discriminatorPaths.length > 0) {
+              return discriminatorPaths;
+            }
+          }
+        }
+      } else if (foundschema.$isSchemaMap && foundschema.$__schemaType instanceof Mixed) {
+        return foundschema.$__schemaType;
+      }
+
+      const fullPath = nestedPath.concat([trypath]).join('.');
+      if (topLevelDoc != null && topLevelDoc.$__ && topLevelDoc.$populated(fullPath) && p < parts.length) {
+        const model = doc.$__.populated[fullPath].options[populateModelSymbol];
+        if (model != null) {
+          const ret = search(
+            parts.slice(p),
+            model.schema,
+            subdoc ? mpath.get(trypath, subdoc) : null,
+            nestedPath.concat(parts.slice(0, p))
+          );
+
+          return ret;
+        }
+      }
+
+      const _val = get(topLevelDoc, trypath);
+      if (_val != null) {
+        const model = Array.isArray(_val) && _val.length > 0 ?
+          leanPopulateMap.get(_val[0]) :
+          leanPopulateMap.get(_val);
+        // Populated using lean, `leanPopulateMap` value is the foreign model
+        const schema = model != null ? model.schema : null;
+        if (schema != null) {
+          const ret = search(
+            parts.slice(p),
+            schema,
+            subdoc ? mpath.get(trypath, subdoc) : null,
+            nestedPath.concat(parts.slice(0, p))
+          );
+
+          if (ret != null) {
+            ret.$parentSchemaDocArray = ret.$parentSchemaDocArray ||
+              (schema.$isSingleNested ? null : schema);
+            return ret;
+          }
+        }
+      }
+      return foundschema;
+    }
+  }
+  // look for arrays
+  const parts = path.split('.');
+  for (let i = 0; i < parts.length; ++i) {
+    if (parts[i] === '$') {
+      // Re: gh-5628, because `schema.path()` doesn't take $ into account.
+      parts[i] = '0';
+    }
+  }
+  return search(parts, schema, doc, []);
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/populate/getVirtual.js b/backend/node_modules/mongoose/lib/helpers/populate/getVirtual.js
new file mode 100644
index 0000000..fc1641d
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/populate/getVirtual.js
@@ -0,0 +1,72 @@
+'use strict';
+
+module.exports = getVirtual;
+
+/*!
+ * ignore
+ */
+
+function getVirtual(schema, name) {
+  if (schema.virtuals[name]) {
+    return { virtual: schema.virtuals[name], path: void 0 };
+  }
+
+  const parts = name.split('.');
+  let cur = '';
+  let nestedSchemaPath = '';
+  for (let i = 0; i < parts.length; ++i) {
+    cur += (cur.length > 0 ? '.' : '') + parts[i];
+    if (schema.virtuals[cur]) {
+      if (i === parts.length - 1) {
+        return { virtual: schema.virtuals[cur], path: nestedSchemaPath };
+      }
+      continue;
+    }
+
+    if (schema.nested[cur]) {
+      continue;
+    }
+
+    if (schema.paths[cur] && schema.paths[cur].schema) {
+      schema = schema.paths[cur].schema;
+      const rest = parts.slice(i + 1).join('.');
+
+      if (schema.virtuals[rest]) {
+        if (i === parts.length - 2) {
+          return {
+            virtual: schema.virtuals[rest],
+            nestedSchemaPath: [nestedSchemaPath, cur].filter(v => !!v).join('.')
+          };
+        }
+        continue;
+      }
+
+      if (i + 1 < parts.length && schema.discriminators) {
+        for (const key of Object.keys(schema.discriminators)) {
+          const res = getVirtual(schema.discriminators[key], rest);
+          if (res != null) {
+            const _path = [nestedSchemaPath, cur, res.nestedSchemaPath].
+              filter(v => !!v).join('.');
+            return {
+              virtual: res.virtual,
+              nestedSchemaPath: _path
+            };
+          }
+        }
+      }
+
+      nestedSchemaPath += (nestedSchemaPath.length > 0 ? '.' : '') + cur;
+      cur = '';
+      continue;
+    }
+
+    if (schema.discriminators) {
+      for (const discriminatorKey of Object.keys(schema.discriminators)) {
+        const virtualFromDiscriminator = getVirtual(schema.discriminators[discriminatorKey], name);
+        if (virtualFromDiscriminator) return virtualFromDiscriminator;
+      }
+    }
+
+    return null;
+  }
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/populate/leanPopulateMap.js b/backend/node_modules/mongoose/lib/helpers/populate/leanPopulateMap.js
new file mode 100644
index 0000000..9ff9b13
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/populate/leanPopulateMap.js
@@ -0,0 +1,7 @@
+'use strict';
+
+/*!
+ * ignore
+ */
+
+module.exports = new WeakMap();
diff --git a/backend/node_modules/mongoose/lib/helpers/populate/lookupLocalFields.js b/backend/node_modules/mongoose/lib/helpers/populate/lookupLocalFields.js
new file mode 100644
index 0000000..b85d8d7
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/populate/lookupLocalFields.js
@@ -0,0 +1,40 @@
+'use strict';
+
+module.exports = function lookupLocalFields(cur, path, val) {
+  if (cur == null) {
+    return cur;
+  }
+
+  if (cur._doc != null) {
+    cur = cur._doc;
+  }
+
+  if (arguments.length >= 3) {
+    if (typeof cur !== 'object') {
+      return void 0;
+    }
+    if (val === void 0) {
+      return void 0;
+    }
+    if (cur instanceof Map) {
+      cur.set(path, val);
+    } else {
+      cur[path] = val;
+    }
+    return val;
+  }
+
+
+  // Support populating paths under maps using `map.$*.subpath`
+  if (path === '$*') {
+    return cur instanceof Map ?
+      Array.from(cur.values()) :
+      Object.keys(cur).map(key => cur[key]);
+  }
+
+  if (cur instanceof Map) {
+    return cur.get(path);
+  }
+
+  return cur[path];
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/populate/markArraySubdocsPopulated.js b/backend/node_modules/mongoose/lib/helpers/populate/markArraySubdocsPopulated.js
new file mode 100644
index 0000000..c0ea5ef
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/populate/markArraySubdocsPopulated.js
@@ -0,0 +1,49 @@
+'use strict';
+
+const utils = require('../../utils');
+
+/**
+ * If populating a path within a document array, make sure each
+ * subdoc within the array knows its subpaths are populated.
+ *
+ * #### Example:
+ *
+ *     const doc = await Article.findOne().populate('comments.author');
+ *     doc.comments[0].populated('author'); // Should be set
+ *
+ * @param {Document} doc
+ * @param {Object} [populated]
+ * @api private
+ */
+
+module.exports = function markArraySubdocsPopulated(doc, populated) {
+  if (doc._doc._id == null || populated == null || populated.length === 0) {
+    return;
+  }
+
+  const id = String(doc._doc._id);
+  for (const item of populated) {
+    if (item.isVirtual) {
+      continue;
+    }
+    const path = item.path;
+    const pieces = path.split('.');
+    for (let i = 0; i < pieces.length - 1; ++i) {
+      const subpath = pieces.slice(0, i + 1).join('.');
+      const rest = pieces.slice(i + 1).join('.');
+      const val = doc.get(subpath);
+      if (val == null) {
+        continue;
+      }
+
+      if (utils.isMongooseDocumentArray(val)) {
+        for (let j = 0; j < val.length; ++j) {
+          if (val[j]) {
+            val[j].populated(rest, item._docs[id] == null ? void 0 : item._docs[id][j], item);
+          }
+        }
+        break;
+      }
+    }
+  }
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/populate/modelNamesFromRefPath.js b/backend/node_modules/mongoose/lib/helpers/populate/modelNamesFromRefPath.js
new file mode 100644
index 0000000..a5b0285
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/populate/modelNamesFromRefPath.js
@@ -0,0 +1,66 @@
+'use strict';
+
+const MongooseError = require('../../error/mongooseError');
+const isPathExcluded = require('../projection/isPathExcluded');
+const lookupLocalFields = require('./lookupLocalFields');
+const mpath = require('mpath');
+const util = require('util');
+const utils = require('../../utils');
+
+const hasNumericPropRE = /(\.\d+$|\.\d+\.)/g;
+
+module.exports = function modelNamesFromRefPath(refPath, doc, populatedPath, modelSchema, queryProjection) {
+  if (refPath == null) {
+    return [];
+  }
+
+  if (typeof refPath === 'string' && queryProjection != null && isPathExcluded(queryProjection, refPath)) {
+    throw new MongooseError('refPath `' + refPath + '` must not be excluded in projection, got ' +
+      util.inspect(queryProjection));
+  }
+
+  // If populated path has numerics, the end `refPath` should too. For example,
+  // if populating `a.0.b` instead of `a.b` and `b` has `refPath = a.c`, we
+  // should return `a.0.c` for the refPath.
+
+  if (hasNumericPropRE.test(populatedPath)) {
+    const chunks = populatedPath.split(hasNumericPropRE);
+
+    if (chunks[chunks.length - 1] === '') {
+      throw new Error('Can\'t populate individual element in an array');
+    }
+
+    let _refPath = '';
+    let _remaining = refPath;
+    // 2nd, 4th, etc. will be numeric props. For example: `[ 'a', '.0.', 'b' ]`
+    for (let i = 0; i < chunks.length; i += 2) {
+      const chunk = chunks[i];
+      if (_remaining.startsWith(chunk + '.')) {
+        _refPath += _remaining.substring(0, chunk.length) + chunks[i + 1];
+        _remaining = _remaining.substring(chunk.length + 1);
+      } else if (i === chunks.length - 1) {
+        _refPath += _remaining;
+        _remaining = '';
+        break;
+      } else {
+        throw new Error('Could not normalize ref path, chunk ' + chunk + ' not in populated path');
+      }
+    }
+
+    const refValue = mpath.get(_refPath, doc, lookupLocalFields);
+    let modelNames = Array.isArray(refValue) ? refValue : [refValue];
+    modelNames = utils.array.flatten(modelNames);
+    return modelNames;
+  }
+
+  const refValue = mpath.get(refPath, doc, lookupLocalFields);
+
+  let modelNames;
+  if (modelSchema != null && modelSchema.virtuals.hasOwnProperty(refPath)) {
+    modelNames = [modelSchema.virtuals[refPath].applyGetters(void 0, doc)];
+  } else {
+    modelNames = Array.isArray(refValue) ? refValue : [refValue];
+  }
+
+  return modelNames;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/populate/removeDeselectedForeignField.js b/backend/node_modules/mongoose/lib/helpers/populate/removeDeselectedForeignField.js
new file mode 100644
index 0000000..a86e6e3
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/populate/removeDeselectedForeignField.js
@@ -0,0 +1,31 @@
+'use strict';
+
+const get = require('../get');
+const mpath = require('mpath');
+const parseProjection = require('../projection/parseProjection');
+
+/*!
+ * ignore
+ */
+
+module.exports = function removeDeselectedForeignField(foreignFields, options, docs) {
+  const projection = parseProjection(get(options, 'select', null), true) ||
+    parseProjection(get(options, 'options.select', null), true);
+
+  if (projection == null) {
+    return;
+  }
+  for (const foreignField of foreignFields) {
+    if (!projection.hasOwnProperty('-' + foreignField)) {
+      continue;
+    }
+
+    for (const val of docs) {
+      if (val.$__ != null) {
+        mpath.unset(foreignField, val._doc);
+      } else {
+        mpath.unset(foreignField, val);
+      }
+    }
+  }
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/populate/setPopulatedVirtualValue.js b/backend/node_modules/mongoose/lib/helpers/populate/setPopulatedVirtualValue.js
new file mode 100644
index 0000000..786e540
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/populate/setPopulatedVirtualValue.js
@@ -0,0 +1,33 @@
+'use strict';
+
+/**
+ * Set a populated virtual value on a document's `$$populatedVirtuals` value
+ *
+ * @param {*} populatedVirtuals A document's `$$populatedVirtuals`
+ * @param {*} name The virtual name
+ * @param {*} v The result of the populate query
+ * @param {*} options The populate options. This function handles `justOne` and `count` options.
+ * @returns {Array<Document>|Document|Object|Array<Object>} the populated virtual value that was set
+ */
+
+module.exports = function setPopulatedVirtualValue(populatedVirtuals, name, v, options) {
+  if (options.justOne || options.count) {
+    populatedVirtuals[name] = Array.isArray(v) ?
+      v[0] :
+      v;
+
+    if (typeof populatedVirtuals[name] !== 'object') {
+      populatedVirtuals[name] = options.count ? v : null;
+    }
+  } else {
+    populatedVirtuals[name] = Array.isArray(v) ?
+      v :
+      v == null ? [] : [v];
+
+    populatedVirtuals[name] = populatedVirtuals[name].filter(function(doc) {
+      return doc && typeof doc === 'object';
+    });
+  }
+
+  return populatedVirtuals[name];
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/populate/skipPopulateValue.js b/backend/node_modules/mongoose/lib/helpers/populate/skipPopulateValue.js
new file mode 100644
index 0000000..38f3f39
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/populate/skipPopulateValue.js
@@ -0,0 +1,10 @@
+'use strict';
+
+module.exports = function SkipPopulateValue(val) {
+  if (!(this instanceof SkipPopulateValue)) {
+    return new SkipPopulateValue(val);
+  }
+
+  this.val = val;
+  return this;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/populate/validateRef.js b/backend/node_modules/mongoose/lib/helpers/populate/validateRef.js
new file mode 100644
index 0000000..2b58e16
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/populate/validateRef.js
@@ -0,0 +1,19 @@
+'use strict';
+
+const MongooseError = require('../../error/mongooseError');
+const util = require('util');
+
+module.exports = validateRef;
+
+function validateRef(ref, path) {
+  if (typeof ref === 'string') {
+    return;
+  }
+
+  if (typeof ref === 'function') {
+    return;
+  }
+
+  throw new MongooseError('Invalid ref at path "' + path + '". Got ' +
+    util.inspect(ref, { depth: 0 }));
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/printJestWarning.js b/backend/node_modules/mongoose/lib/helpers/printJestWarning.js
new file mode 100644
index 0000000..00ba2d5
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/printJestWarning.js
@@ -0,0 +1,21 @@
+'use strict';
+
+const utils = require('../utils');
+
+if (typeof jest !== 'undefined' && !process.env.SUPPRESS_JEST_WARNINGS) {
+  if (typeof window !== 'undefined') {
+    utils.warn('Mongoose: looks like you\'re trying to test a Mongoose app ' +
+      'with Jest\'s default jsdom test environment. Please make sure you read ' +
+      'Mongoose\'s docs on configuring Jest to test Node.js apps: ' +
+      'https://mongoosejs.com/docs/jest.html. Set the SUPPRESS_JEST_WARNINGS to true ' +
+      'to hide this warning.');
+  }
+
+  if (setTimeout.clock != null && typeof setTimeout.clock.Date === 'function') {
+    utils.warn('Mongoose: looks like you\'re trying to test a Mongoose app ' +
+      'with Jest\'s mock timers enabled. Please make sure you read ' +
+      'Mongoose\'s docs on configuring Jest to test Node.js apps: ' +
+      'https://mongoosejs.com/docs/jest.html. Set the SUPPRESS_JEST_WARNINGS to true ' +
+      'to hide this warning.');
+  }
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/processConnectionOptions.js b/backend/node_modules/mongoose/lib/helpers/processConnectionOptions.js
new file mode 100644
index 0000000..1dbb767
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/processConnectionOptions.js
@@ -0,0 +1,65 @@
+'use strict';
+
+const clone = require('./clone');
+const MongooseError = require('../error/index');
+
+function processConnectionOptions(uri, options) {
+  const opts = options ? options : {};
+  const readPreference = opts.readPreference
+    ? opts.readPreference
+    : getUriReadPreference(uri);
+
+  const clonedOpts = clone(opts);
+  const resolvedOpts = (readPreference && readPreference !== 'primary' && readPreference !== 'primaryPreferred')
+    ? resolveOptsConflicts(readPreference, clonedOpts)
+    : clonedOpts;
+
+  return resolvedOpts;
+}
+
+function resolveOptsConflicts(pref, opts) {
+  // don't silently override user-provided indexing options
+  if (setsIndexOptions(opts) && setsSecondaryRead(pref)) {
+    throwReadPreferenceError();
+  }
+
+  // if user has not explicitly set any auto-indexing options,
+  // we can silently default them all to false
+  else {
+    return defaultIndexOptsToFalse(opts);
+  }
+}
+
+function setsIndexOptions(opts) {
+  const configIdx = opts.config && opts.config.autoIndex;
+  const { autoCreate, autoIndex } = opts;
+  return !!(configIdx || autoCreate || autoIndex);
+}
+
+function setsSecondaryRead(prefString) {
+  return !!(prefString === 'secondary' || prefString === 'secondaryPreferred');
+}
+
+function getUriReadPreference(connectionString) {
+  const exp = /(?:&|\?)readPreference=(\w+)(?:&|$)/;
+  const match = exp.exec(connectionString);
+  return match ? match[1] : null;
+}
+
+function defaultIndexOptsToFalse(opts) {
+  opts.config = { autoIndex: false };
+  opts.autoCreate = false;
+  opts.autoIndex = false;
+  return opts;
+}
+
+function throwReadPreferenceError() {
+  throw new MongooseError(
+    'MongoDB prohibits index creation on connections that read from ' +
+            'non-primary replicas.  Connections that set "readPreference" to "secondary" or ' +
+            '"secondaryPreferred" may not opt-in to the following connection options: ' +
+            'autoCreate, autoIndex'
+  );
+}
+
+module.exports = processConnectionOptions;
diff --git a/backend/node_modules/mongoose/lib/helpers/projection/applyProjection.js b/backend/node_modules/mongoose/lib/helpers/projection/applyProjection.js
new file mode 100644
index 0000000..7a35b12
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/projection/applyProjection.js
@@ -0,0 +1,83 @@
+'use strict';
+
+const hasIncludedChildren = require('./hasIncludedChildren');
+const isExclusive = require('./isExclusive');
+const isInclusive = require('./isInclusive');
+const isPOJO = require('../../utils').isPOJO;
+
+module.exports = function applyProjection(doc, projection, _hasIncludedChildren) {
+  if (projection == null) {
+    return doc;
+  }
+  if (doc == null) {
+    return doc;
+  }
+
+  let exclude = null;
+  if (isInclusive(projection)) {
+    exclude = false;
+  } else if (isExclusive(projection)) {
+    exclude = true;
+  }
+
+  if (exclude == null) {
+    return doc;
+  } else if (exclude) {
+    _hasIncludedChildren = _hasIncludedChildren || hasIncludedChildren(projection);
+    return applyExclusiveProjection(doc, projection, _hasIncludedChildren);
+  } else {
+    _hasIncludedChildren = _hasIncludedChildren || hasIncludedChildren(projection);
+    return applyInclusiveProjection(doc, projection, _hasIncludedChildren);
+  }
+};
+
+function applyExclusiveProjection(doc, projection, hasIncludedChildren, projectionLimb, prefix) {
+  if (doc == null || typeof doc !== 'object') {
+    return doc;
+  }
+  if (Array.isArray(doc)) {
+    return doc.map(el => applyExclusiveProjection(el, projection, hasIncludedChildren, projectionLimb, prefix));
+  }
+  const ret = { ...doc };
+  projectionLimb = prefix ? (projectionLimb || {}) : projection;
+
+  for (const key of Object.keys(ret)) {
+    const fullPath = prefix ? prefix + '.' + key : key;
+    if (projection.hasOwnProperty(fullPath) || projectionLimb.hasOwnProperty(key)) {
+      if (isPOJO(projection[fullPath]) || isPOJO(projectionLimb[key])) {
+        ret[key] = applyExclusiveProjection(ret[key], projection, hasIncludedChildren, projectionLimb[key], fullPath);
+      } else {
+        delete ret[key];
+      }
+    } else if (hasIncludedChildren[fullPath]) {
+      ret[key] = applyExclusiveProjection(ret[key], projection, hasIncludedChildren, projectionLimb[key], fullPath);
+    }
+  }
+  return ret;
+}
+
+function applyInclusiveProjection(doc, projection, hasIncludedChildren, projectionLimb, prefix) {
+  if (doc == null || typeof doc !== 'object') {
+    return doc;
+  }
+  if (Array.isArray(doc)) {
+    return doc.map(el => applyInclusiveProjection(el, projection, hasIncludedChildren, projectionLimb, prefix));
+  }
+  const ret = { ...doc };
+  projectionLimb = prefix ? (projectionLimb || {}) : projection;
+
+  for (const key of Object.keys(ret)) {
+    const fullPath = prefix ? prefix + '.' + key : key;
+    if (projection.hasOwnProperty(fullPath) || projectionLimb.hasOwnProperty(key)) {
+      if (isPOJO(projection[fullPath]) || isPOJO(projectionLimb[key])) {
+        ret[key] = applyInclusiveProjection(ret[key], projection, hasIncludedChildren, projectionLimb[key], fullPath);
+      }
+      continue;
+    } else if (hasIncludedChildren[fullPath]) {
+      ret[key] = applyInclusiveProjection(ret[key], projection, hasIncludedChildren, projectionLimb[key], fullPath);
+    } else {
+      delete ret[key];
+    }
+  }
+  return ret;
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/projection/hasIncludedChildren.js b/backend/node_modules/mongoose/lib/helpers/projection/hasIncludedChildren.js
new file mode 100644
index 0000000..50afc5a
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/projection/hasIncludedChildren.js
@@ -0,0 +1,41 @@
+'use strict';
+
+/**
+ * Creates an object that precomputes whether a given path has child fields in
+ * the projection.
+ *
+ * #### Example:
+ *
+ *     const res = hasIncludedChildren({ 'a.b.c': 0 });
+ *     res.a; // 1
+ *     res['a.b']; // 1
+ *     res['a.b.c']; // 1
+ *     res['a.c']; // undefined
+ *
+ * @param {Object} fields
+ * @api private
+ */
+
+module.exports = function hasIncludedChildren(fields) {
+  const hasIncludedChildren = {};
+  const keys = Object.keys(fields);
+
+  for (const key of keys) {
+
+    if (key.indexOf('.') === -1) {
+      hasIncludedChildren[key] = 1;
+      continue;
+    }
+    const parts = key.split('.');
+    let c = parts[0];
+
+    for (let i = 0; i < parts.length; ++i) {
+      hasIncludedChildren[c] = 1;
+      if (i + 1 < parts.length) {
+        c = c + '.' + parts[i + 1];
+      }
+    }
+  }
+
+  return hasIncludedChildren;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/projection/isDefiningProjection.js b/backend/node_modules/mongoose/lib/helpers/projection/isDefiningProjection.js
new file mode 100644
index 0000000..67dfb39
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/projection/isDefiningProjection.js
@@ -0,0 +1,18 @@
+'use strict';
+
+/*!
+ * ignore
+ */
+
+module.exports = function isDefiningProjection(val) {
+  if (val == null) {
+    // `undefined` or `null` become exclusive projections
+    return true;
+  }
+  if (typeof val === 'object') {
+    // Only cases where a value does **not** define whether the whole projection
+    // is inclusive or exclusive are `$meta` and `$slice`.
+    return !('$meta' in val) && !('$slice' in val);
+  }
+  return true;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/projection/isExclusive.js b/backend/node_modules/mongoose/lib/helpers/projection/isExclusive.js
new file mode 100644
index 0000000..e6ca3ca
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/projection/isExclusive.js
@@ -0,0 +1,37 @@
+'use strict';
+
+const isDefiningProjection = require('./isDefiningProjection');
+const isPOJO = require('../isPOJO');
+
+/*!
+ * ignore
+ */
+
+module.exports = function isExclusive(projection) {
+  if (projection == null) {
+    return null;
+  }
+
+  const keys = Object.keys(projection);
+  let exclude = null;
+
+  if (keys.length === 1 && keys[0] === '_id') {
+    exclude = !projection._id;
+  } else {
+    for (let ki = 0; ki < keys.length; ++ki) {
+      // Does this projection explicitly define inclusion/exclusion?
+      // Explicitly avoid `$meta` and `$slice`
+      const key = keys[ki];
+      if (key !== '_id' && isDefiningProjection(projection[key])) {
+        exclude = isPOJO(projection[key]) ?
+          (isExclusive(projection[key]) ?? exclude) :
+          !projection[key];
+        if (exclude != null) {
+          break;
+        }
+      }
+    }
+  }
+
+  return exclude;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/projection/isInclusive.js b/backend/node_modules/mongoose/lib/helpers/projection/isInclusive.js
new file mode 100644
index 0000000..c53bac0
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/projection/isInclusive.js
@@ -0,0 +1,39 @@
+'use strict';
+
+const isDefiningProjection = require('./isDefiningProjection');
+const isPOJO = require('../isPOJO');
+
+/*!
+ * ignore
+ */
+
+module.exports = function isInclusive(projection) {
+  if (projection == null) {
+    return false;
+  }
+
+  const props = Object.keys(projection);
+  const numProps = props.length;
+  if (numProps === 0) {
+    return false;
+  }
+
+  for (let i = 0; i < numProps; ++i) {
+    const prop = props[i];
+    // Plus paths can't define the projection (see gh-7050)
+    if (prop.startsWith('+')) {
+      continue;
+    }
+    // If field is truthy (1, true, etc.) and not an object, then this
+    // projection must be inclusive. If object, assume its $meta, $slice, etc.
+    if (isDefiningProjection(projection[prop]) && !!projection[prop]) {
+      if (isPOJO(projection[prop])) {
+        return isInclusive(projection[prop]);
+      } else {
+        return !!projection[prop];
+      }
+    }
+  }
+
+  return false;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/projection/isNestedProjection.js b/backend/node_modules/mongoose/lib/helpers/projection/isNestedProjection.js
new file mode 100644
index 0000000..f53d9cd
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/projection/isNestedProjection.js
@@ -0,0 +1,8 @@
+'use strict';
+
+module.exports = function isNestedProjection(val) {
+  if (val == null || typeof val !== 'object') {
+    return false;
+  }
+  return val.$slice == null && val.$elemMatch == null && val.$meta == null && val.$ == null;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/projection/isPathExcluded.js b/backend/node_modules/mongoose/lib/helpers/projection/isPathExcluded.js
new file mode 100644
index 0000000..e8f126b
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/projection/isPathExcluded.js
@@ -0,0 +1,40 @@
+'use strict';
+
+const isDefiningProjection = require('./isDefiningProjection');
+
+/**
+ * Determines if `path` is excluded by `projection`
+ *
+ * @param {Object} projection
+ * @param {String} path
+ * @return {Boolean}
+ * @api private
+ */
+
+module.exports = function isPathExcluded(projection, path) {
+  if (projection == null) {
+    return false;
+  }
+
+  if (path === '_id') {
+    return projection._id === 0;
+  }
+
+  const paths = Object.keys(projection);
+  let type = null;
+
+  for (const _path of paths) {
+    if (isDefiningProjection(projection[_path])) {
+      type = projection[path] === 1 ? 'inclusive' : 'exclusive';
+      break;
+    }
+  }
+
+  if (type === 'inclusive') {
+    return projection[path] !== 1;
+  }
+  if (type === 'exclusive') {
+    return projection[path] === 0;
+  }
+  return false;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/projection/isPathSelectedInclusive.js b/backend/node_modules/mongoose/lib/helpers/projection/isPathSelectedInclusive.js
new file mode 100644
index 0000000..8a05fc9
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/projection/isPathSelectedInclusive.js
@@ -0,0 +1,28 @@
+'use strict';
+
+/*!
+ * ignore
+ */
+
+module.exports = function isPathSelectedInclusive(fields, path) {
+  const chunks = path.split('.');
+  let cur = '';
+  let j;
+  let keys;
+  let numKeys;
+  for (let i = 0; i < chunks.length; ++i) {
+    cur += cur.length ? '.' : '' + chunks[i];
+    if (fields[cur]) {
+      keys = Object.keys(fields);
+      numKeys = keys.length;
+      for (j = 0; j < numKeys; ++j) {
+        if (keys[i].indexOf(cur + '.') === 0 && keys[i].indexOf(path) !== 0) {
+          continue;
+        }
+      }
+      return true;
+    }
+  }
+
+  return false;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/projection/isSubpath.js b/backend/node_modules/mongoose/lib/helpers/projection/isSubpath.js
new file mode 100644
index 0000000..bec82f8
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/projection/isSubpath.js
@@ -0,0 +1,14 @@
+'use strict';
+
+/**
+ * Determines if `path2` is a subpath of or equal to `path1`
+ *
+ * @param {string} path1
+ * @param {string} path2
+ * @return {Boolean}
+ * @api private
+ */
+
+module.exports = function isSubpath(path1, path2) {
+  return path1 === path2 || path2.startsWith(path1 + '.');
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/projection/parseProjection.js b/backend/node_modules/mongoose/lib/helpers/projection/parseProjection.js
new file mode 100644
index 0000000..479b523
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/projection/parseProjection.js
@@ -0,0 +1,33 @@
+'use strict';
+
+/**
+ * Convert a string or array into a projection object, retaining all
+ * `-` and `+` paths.
+ */
+
+module.exports = function parseProjection(v, retainMinusPaths) {
+  const type = typeof v;
+
+  if (type === 'string') {
+    v = v.split(/\s+/);
+  }
+  if (!Array.isArray(v) && Object.prototype.toString.call(v) !== '[object Arguments]') {
+    return v;
+  }
+
+  const len = v.length;
+  const ret = {};
+  for (let i = 0; i < len; ++i) {
+    let field = v[i];
+    if (!field) {
+      continue;
+    }
+    const include = '-' == field[0] ? 0 : 1;
+    if (!retainMinusPaths && include === 0) {
+      field = field.substring(1);
+    }
+    ret[field] = include;
+  }
+
+  return ret;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/promiseOrCallback.js b/backend/node_modules/mongoose/lib/helpers/promiseOrCallback.js
new file mode 100644
index 0000000..952eecf
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/promiseOrCallback.js
@@ -0,0 +1,54 @@
+'use strict';
+
+const immediate = require('./immediate');
+
+const emittedSymbol = Symbol('mongoose#emitted');
+
+module.exports = function promiseOrCallback(callback, fn, ee, Promise) {
+  if (typeof callback === 'function') {
+    try {
+      return fn(function(error) {
+        if (error != null) {
+          if (ee != null && ee.listeners != null && ee.listeners('error').length > 0 && !error[emittedSymbol]) {
+            error[emittedSymbol] = true;
+            ee.emit('error', error);
+          }
+          try {
+            callback(error);
+          } catch (error) {
+            return immediate(() => {
+              throw error;
+            });
+          }
+          return;
+        }
+        callback.apply(this, arguments);
+      });
+    } catch (error) {
+      if (ee != null && ee.listeners != null && ee.listeners('error').length > 0 && !error[emittedSymbol]) {
+        error[emittedSymbol] = true;
+        ee.emit('error', error);
+      }
+
+      return callback(error);
+    }
+  }
+
+  Promise = Promise || global.Promise;
+
+  return new Promise((resolve, reject) => {
+    fn(function(error, res) {
+      if (error != null) {
+        if (ee != null && ee.listeners != null && ee.listeners('error').length > 0 && !error[emittedSymbol]) {
+          error[emittedSymbol] = true;
+          ee.emit('error', error);
+        }
+        return reject(error);
+      }
+      if (arguments.length > 2) {
+        return resolve(Array.prototype.slice.call(arguments, 1));
+      }
+      resolve(res);
+    });
+  });
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/query/applyGlobalOption.js b/backend/node_modules/mongoose/lib/helpers/query/applyGlobalOption.js
new file mode 100644
index 0000000..e93fa73
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/query/applyGlobalOption.js
@@ -0,0 +1,29 @@
+'use strict';
+
+const utils = require('../../utils');
+
+function applyGlobalMaxTimeMS(options, connectionOptions, baseOptions) {
+  applyGlobalOption(options, connectionOptions, baseOptions, 'maxTimeMS');
+}
+
+function applyGlobalDiskUse(options, connectionOptions, baseOptions) {
+  applyGlobalOption(options, connectionOptions, baseOptions, 'allowDiskUse');
+}
+
+module.exports = {
+  applyGlobalMaxTimeMS,
+  applyGlobalDiskUse
+};
+
+
+function applyGlobalOption(options, connectionOptions, baseOptions, optionName) {
+  if (utils.hasUserDefinedProperty(options, optionName)) {
+    return;
+  }
+
+  if (utils.hasUserDefinedProperty(connectionOptions, optionName)) {
+    options[optionName] = connectionOptions[optionName];
+  } else if (utils.hasUserDefinedProperty(baseOptions, optionName)) {
+    options[optionName] = baseOptions[optionName];
+  }
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/query/cast$expr.js b/backend/node_modules/mongoose/lib/helpers/query/cast$expr.js
new file mode 100644
index 0000000..8e84011
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/query/cast$expr.js
@@ -0,0 +1,286 @@
+'use strict';
+
+const CastError = require('../../error/cast');
+const StrictModeError = require('../../error/strict');
+const castNumber = require('../../cast/number');
+const omitUndefined = require('../omitUndefined');
+
+const booleanComparison = new Set(['$and', '$or']);
+const comparisonOperator = new Set(['$cmp', '$eq', '$lt', '$lte', '$gt', '$gte']);
+const arithmeticOperatorArray = new Set([
+  // avoid casting '$add' or '$subtract', because expressions can be either number or date,
+  // and we don't have a good way of inferring which arguments should be numbers and which should
+  // be dates.
+  '$multiply',
+  '$divide',
+  '$log',
+  '$mod',
+  '$trunc',
+  '$avg',
+  '$max',
+  '$min',
+  '$stdDevPop',
+  '$stdDevSamp',
+  '$sum'
+]);
+const arithmeticOperatorNumber = new Set([
+  '$abs',
+  '$exp',
+  '$ceil',
+  '$floor',
+  '$ln',
+  '$log10',
+  '$sqrt',
+  '$sin',
+  '$cos',
+  '$tan',
+  '$asin',
+  '$acos',
+  '$atan',
+  '$atan2',
+  '$asinh',
+  '$acosh',
+  '$atanh',
+  '$sinh',
+  '$cosh',
+  '$tanh',
+  '$degreesToRadians',
+  '$radiansToDegrees'
+]);
+const arrayElementOperators = new Set([
+  '$arrayElemAt',
+  '$first',
+  '$last'
+]);
+const dateOperators = new Set([
+  '$year',
+  '$month',
+  '$week',
+  '$dayOfMonth',
+  '$dayOfYear',
+  '$hour',
+  '$minute',
+  '$second',
+  '$isoDayOfWeek',
+  '$isoWeekYear',
+  '$isoWeek',
+  '$millisecond'
+]);
+const expressionOperator = new Set(['$not']);
+
+module.exports = function cast$expr(val, schema, strictQuery) {
+  if (typeof val !== 'object' || val === null) {
+    throw new Error('`$expr` must be an object');
+  }
+
+  return _castExpression(val, schema, strictQuery);
+};
+
+function _castExpression(val, schema, strictQuery) {
+  // Preserve the value if it represents a path or if it's null
+  if (isPath(val) || val === null) {
+    return val;
+  }
+
+  if (val.$cond != null) {
+    if (Array.isArray(val.$cond)) {
+      val.$cond = val.$cond.map(expr => _castExpression(expr, schema, strictQuery));
+    } else {
+      val.$cond.if = _castExpression(val.$cond.if, schema, strictQuery);
+      val.$cond.then = _castExpression(val.$cond.then, schema, strictQuery);
+      val.$cond.else = _castExpression(val.$cond.else, schema, strictQuery);
+    }
+  } else if (val.$ifNull != null) {
+    val.$ifNull.map(v => _castExpression(v, schema, strictQuery));
+  } else if (val.$switch != null) {
+    if (Array.isArray(val.$switch.branches)) {
+      val.$switch.branches = val.$switch.branches.map(v => _castExpression(v, schema, strictQuery));
+    }
+    if ('default' in val.$switch) {
+      val.$switch.default = _castExpression(val.$switch.default, schema, strictQuery);
+    }
+  }
+
+  const keys = Object.keys(val);
+  for (const key of keys) {
+    if (booleanComparison.has(key)) {
+      val[key] = val[key].map(v => _castExpression(v, schema, strictQuery));
+    } else if (comparisonOperator.has(key)) {
+      val[key] = castComparison(val[key], schema, strictQuery);
+    } else if (arithmeticOperatorArray.has(key)) {
+      val[key] = castArithmetic(val[key], schema, strictQuery);
+    } else if (arithmeticOperatorNumber.has(key)) {
+      val[key] = castNumberOperator(val[key], schema, strictQuery);
+    } else if (expressionOperator.has(key)) {
+      val[key] = _castExpression(val[key], schema, strictQuery);
+    }
+  }
+
+  if (val.$in) {
+    val.$in = castIn(val.$in, schema, strictQuery);
+  }
+  if (val.$size) {
+    val.$size = castNumberOperator(val.$size, schema, strictQuery);
+  }
+  if (val.$round) {
+    const $round = val.$round;
+    if (!Array.isArray($round) || $round.length < 1 || $round.length > 2) {
+      throw new CastError('Array', $round, '$round');
+    }
+    val.$round = $round.map(v => castNumberOperator(v, schema, strictQuery));
+  }
+
+  omitUndefined(val);
+
+  return val;
+}
+
+// { $op: <number> }
+function castNumberOperator(val) {
+  if (!isLiteral(val)) {
+    return val;
+  }
+
+  try {
+    return castNumber(val);
+  } catch (err) {
+    throw new CastError('Number', val);
+  }
+}
+
+function castIn(val, schema, strictQuery) {
+  const path = val[1];
+  if (!isPath(path)) {
+    return val;
+  }
+  const search = val[0];
+
+  const schematype = schema.path(path.slice(1));
+  if (schematype === null) {
+    if (strictQuery === false) {
+      return val;
+    } else if (strictQuery === 'throw') {
+      throw new StrictModeError('$in');
+    }
+
+    return void 0;
+  }
+
+  if (!schematype.$isMongooseArray) {
+    throw new Error('Path must be an array for $in');
+  }
+
+  return [
+    schematype.$isMongooseDocumentArray ? schematype.$embeddedSchemaType.cast(search) : schematype.caster.cast(search),
+    path
+  ];
+}
+
+// { $op: [<number>, <number>] }
+function castArithmetic(val) {
+  if (!Array.isArray(val)) {
+    if (!isLiteral(val)) {
+      return val;
+    }
+    try {
+      return castNumber(val);
+    } catch (err) {
+      throw new CastError('Number', val);
+    }
+  }
+
+  return val.map(v => {
+    if (!isLiteral(v)) {
+      return v;
+    }
+    try {
+      return castNumber(v);
+    } catch (err) {
+      throw new CastError('Number', v);
+    }
+  });
+}
+
+// { $op: [expression, expression] }
+function castComparison(val, schema, strictQuery) {
+  if (!Array.isArray(val) || val.length !== 2) {
+    throw new Error('Comparison operator must be an array of length 2');
+  }
+
+  val[0] = _castExpression(val[0], schema, strictQuery);
+  const lhs = val[0];
+
+  if (isLiteral(val[1])) {
+    let path = null;
+    let schematype = null;
+    let caster = null;
+    if (isPath(lhs)) {
+      path = lhs.slice(1);
+      schematype = schema.path(path);
+    } else if (typeof lhs === 'object' && lhs != null) {
+      for (const key of Object.keys(lhs)) {
+        if (dateOperators.has(key) && isPath(lhs[key])) {
+          path = lhs[key].slice(1) + '.' + key;
+          caster = castNumber;
+        } else if (arrayElementOperators.has(key) && isPath(lhs[key])) {
+          path = lhs[key].slice(1) + '.' + key;
+          schematype = schema.path(lhs[key].slice(1));
+          if (schematype != null) {
+            if (schematype.$isMongooseDocumentArray) {
+              schematype = schematype.$embeddedSchemaType;
+            } else if (schematype.$isMongooseArray) {
+              schematype = schematype.caster;
+            }
+          }
+        }
+      }
+    }
+
+    const is$literal = typeof val[1] === 'object' && val[1] != null && val[1].$literal != null;
+    if (schematype != null) {
+      if (is$literal) {
+        val[1] = { $literal: schematype.cast(val[1].$literal) };
+      } else {
+        val[1] = schematype.cast(val[1]);
+      }
+    } else if (caster != null) {
+      if (is$literal) {
+        try {
+          val[1] = { $literal: caster(val[1].$literal) };
+        } catch (err) {
+          throw new CastError(caster.name.replace(/^cast/, ''), val[1], path + '.$literal');
+        }
+      } else {
+        try {
+          val[1] = caster(val[1]);
+        } catch (err) {
+          throw new CastError(caster.name.replace(/^cast/, ''), val[1], path);
+        }
+      }
+    } else if (path != null && strictQuery === true) {
+      return void 0;
+    } else if (path != null && strictQuery === 'throw') {
+      throw new StrictModeError(path);
+    }
+  } else {
+    val[1] = _castExpression(val[1]);
+  }
+
+  return val;
+}
+
+function isPath(val) {
+  return typeof val === 'string' && val[0] === '$';
+}
+
+function isLiteral(val) {
+  if (typeof val === 'string' && val[0] === '$') {
+    return false;
+  }
+  if (typeof val === 'object' && val !== null && Object.keys(val).find(key => key[0] === '$')) {
+    // The `$literal` expression can make an object a literal
+    // https://www.mongodb.com/docs/manual/reference/operator/aggregation/literal/#mongodb-expression-exp.-literal
+    return val.$literal != null;
+  }
+  return true;
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/query/castFilterPath.js b/backend/node_modules/mongoose/lib/helpers/query/castFilterPath.js
new file mode 100644
index 0000000..c5c8d0f
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/query/castFilterPath.js
@@ -0,0 +1,54 @@
+'use strict';
+
+const isOperator = require('./isOperator');
+
+module.exports = function castFilterPath(ctx, schematype, val) {
+  const any$conditionals = Object.keys(val).some(isOperator);
+
+  if (!any$conditionals) {
+    return schematype.castForQuery(
+      null,
+      val,
+      ctx
+    );
+  }
+
+  const ks = Object.keys(val);
+
+  let k = ks.length;
+
+  while (k--) {
+    const $cond = ks[k];
+    const nested = val[$cond];
+
+    if ($cond === '$not') {
+      if (nested && schematype && !schematype.caster) {
+        const _keys = Object.keys(nested);
+        if (_keys.length && isOperator(_keys[0])) {
+          for (const key of Object.keys(nested)) {
+            nested[key] = schematype.castForQuery(
+              key,
+              nested[key],
+              ctx
+            );
+          }
+        } else {
+          val[$cond] = schematype.castForQuery(
+            $cond,
+            nested,
+            ctx
+          );
+        }
+        continue;
+      }
+    } else {
+      val[$cond] = schematype.castForQuery(
+        $cond,
+        nested,
+        ctx
+      );
+    }
+  }
+
+  return val;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/query/castUpdate.js b/backend/node_modules/mongoose/lib/helpers/query/castUpdate.js
new file mode 100644
index 0000000..3cf30cb
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/query/castUpdate.js
@@ -0,0 +1,626 @@
+'use strict';
+
+const CastError = require('../../error/cast');
+const MongooseError = require('../../error/mongooseError');
+const SchemaString = require('../../schema/string');
+const StrictModeError = require('../../error/strict');
+const ValidationError = require('../../error/validation');
+const castNumber = require('../../cast/number');
+const cast = require('../../cast');
+const getConstructorName = require('../getConstructorName');
+const getDiscriminatorByValue = require('../discriminator/getDiscriminatorByValue');
+const getEmbeddedDiscriminatorPath = require('./getEmbeddedDiscriminatorPath');
+const handleImmutable = require('./handleImmutable');
+const moveImmutableProperties = require('../update/moveImmutableProperties');
+const schemaMixedSymbol = require('../../schema/symbols').schemaMixedSymbol;
+const setDottedPath = require('../path/setDottedPath');
+const utils = require('../../utils');
+const { internalToObjectOptions } = require('../../options');
+
+const mongodbUpdateOperators = new Set([
+  '$currentDate',
+  '$inc',
+  '$min',
+  '$max',
+  '$mul',
+  '$rename',
+  '$set',
+  '$setOnInsert',
+  '$unset',
+  '$addToSet',
+  '$pop',
+  '$pull',
+  '$push',
+  '$pullAll',
+  '$bit'
+]);
+
+/**
+ * Casts an update op based on the given schema
+ *
+ * @param {Schema} schema
+ * @param {Object} obj
+ * @param {Object} [options]
+ * @param {Boolean|String} [options.strict] defaults to true
+ * @param {Query} context passed to setters
+ * @return {Boolean} true iff the update is non-empty
+ * @api private
+ */
+module.exports = function castUpdate(schema, obj, options, context, filter) {
+  if (obj == null) {
+    return undefined;
+  }
+  options = options || {};
+  // Update pipeline
+  if (Array.isArray(obj)) {
+    const len = obj.length;
+    for (let i = 0; i < len; ++i) {
+      const ops = Object.keys(obj[i]);
+      for (const op of ops) {
+        obj[i][op] = castPipelineOperator(op, obj[i][op]);
+      }
+    }
+    return obj;
+  }
+
+  if (schema != null &&
+      filter != null &&
+      utils.hasUserDefinedProperty(filter, schema.options.discriminatorKey) &&
+      typeof filter[schema.options.discriminatorKey] !== 'object' &&
+      schema.discriminators != null) {
+    const discriminatorValue = filter[schema.options.discriminatorKey];
+    const byValue = getDiscriminatorByValue(context.model.discriminators, discriminatorValue);
+    schema = schema.discriminators[discriminatorValue] ||
+      (byValue && byValue.schema) ||
+      schema;
+  } else if (schema != null &&
+      options.overwriteDiscriminatorKey &&
+      utils.hasUserDefinedProperty(obj, schema.options.discriminatorKey) &&
+      schema.discriminators != null) {
+    const discriminatorValue = obj[schema.options.discriminatorKey];
+    const byValue = getDiscriminatorByValue(context.model.discriminators, discriminatorValue);
+    schema = schema.discriminators[discriminatorValue] ||
+      (byValue && byValue.schema) ||
+      schema;
+  }
+
+  if (options.upsert) {
+    moveImmutableProperties(schema, obj, context);
+  }
+
+  const ops = Object.keys(obj);
+  let i = ops.length;
+  const ret = {};
+  let val;
+  let hasDollarKey = false;
+
+  filter = filter || {};
+  while (i--) {
+    const op = ops[i];
+    if (!mongodbUpdateOperators.has(op)) {
+      // fix up $set sugar
+      if (!ret.$set) {
+        if (obj.$set) {
+          ret.$set = obj.$set;
+        } else {
+          ret.$set = {};
+        }
+      }
+      ret.$set[op] = obj[op];
+      ops.splice(i, 1);
+      if (!~ops.indexOf('$set')) ops.push('$set');
+    } else if (op === '$set') {
+      if (!ret.$set) {
+        ret[op] = obj[op];
+      }
+    } else {
+      ret[op] = obj[op];
+    }
+  }
+  // cast each value
+  i = ops.length;
+  while (i--) {
+    const op = ops[i];
+    val = ret[op];
+    hasDollarKey = hasDollarKey || op.startsWith('$');
+    if (val != null && val.$__) {
+      val = val.toObject(internalToObjectOptions);
+      ret[op] = val;
+    }
+    if (val &&
+        typeof val === 'object' &&
+        !Buffer.isBuffer(val) &&
+        mongodbUpdateOperators.has(op)) {
+      walkUpdatePath(schema, val, op, options, context, filter);
+    } else {
+      const msg = 'Invalid atomic update value for ' + op + '. '
+          + 'Expected an object, received ' + typeof val;
+      throw new Error(msg);
+    }
+
+    if (op.startsWith('$') && utils.isEmptyObject(val)) {
+      delete ret[op];
+    }
+  }
+
+  if (Object.keys(ret).length === 0 &&
+      options.upsert &&
+      Object.keys(filter).length > 0) {
+    // Trick the driver into allowing empty upserts to work around
+    // https://github.com/mongodb/node-mongodb-native/pull/2490
+    // Shallow clone to avoid passing defaults in re: gh-13962
+    return { $setOnInsert: { ...filter } };
+  }
+  return ret;
+};
+
+/*!
+ * ignore
+ */
+
+function castPipelineOperator(op, val) {
+  if (op === '$unset') {
+    if (typeof val !== 'string' && (!Array.isArray(val) || val.find(v => typeof v !== 'string'))) {
+      throw new MongooseError('Invalid $unset in pipeline, must be ' +
+        ' a string or an array of strings');
+    }
+    return val;
+  }
+  if (op === '$project') {
+    if (val == null || typeof val !== 'object') {
+      throw new MongooseError('Invalid $project in pipeline, must be an object');
+    }
+    return val;
+  }
+  if (op === '$addFields' || op === '$set') {
+    if (val == null || typeof val !== 'object') {
+      throw new MongooseError('Invalid ' + op + ' in pipeline, must be an object');
+    }
+    return val;
+  } else if (op === '$replaceRoot' || op === '$replaceWith') {
+    if (val == null || typeof val !== 'object') {
+      throw new MongooseError('Invalid ' + op + ' in pipeline, must be an object');
+    }
+    return val;
+  }
+
+  throw new MongooseError('Invalid update pipeline operator: "' + op + '"');
+}
+
+/**
+ * Walk each path of obj and cast its values
+ * according to its schema.
+ *
+ * @param {Schema} schema
+ * @param {Object} obj part of a query
+ * @param {String} op the atomic operator ($pull, $set, etc)
+ * @param {Object} [options]
+ * @param {Boolean|String} [options.strict]
+ * @param {Query} context
+ * @param {Object} filter
+ * @param {String} pref path prefix (internal only)
+ * @return {Bool} true if this path has keys to update
+ * @api private
+ */
+
+function walkUpdatePath(schema, obj, op, options, context, filter, pref) {
+  const strict = options.strict;
+  const prefix = pref ? pref + '.' : '';
+  const keys = Object.keys(obj);
+  let i = keys.length;
+  let hasKeys = false;
+  let schematype;
+  let key;
+  let val;
+
+  let aggregatedError = null;
+
+  const strictMode = strict != null ? strict : schema.options.strict;
+
+  while (i--) {
+    key = keys[i];
+    val = obj[key];
+
+    // `$pull` is special because we need to cast the RHS as a query, not as
+    // an update.
+    if (op === '$pull') {
+      schematype = schema._getSchema(prefix + key);
+      if (schematype == null) {
+        const _res = getEmbeddedDiscriminatorPath(schema, obj, filter, prefix + key, options);
+        if (_res.schematype != null) {
+          schematype = _res.schematype;
+        }
+      }
+      if (schematype != null && schematype.schema != null) {
+        obj[key] = cast(schematype.schema, obj[key], options, context);
+        hasKeys = true;
+        continue;
+      }
+    }
+
+    const discriminatorKey = (prefix ? prefix + key : key);
+    if (
+      schema.discriminatorMapping != null &&
+      discriminatorKey === schema.options.discriminatorKey &&
+      schema.discriminatorMapping.value !== obj[key] &&
+      !options.overwriteDiscriminatorKey
+    ) {
+      if (strictMode === 'throw') {
+        const err = new Error('Can\'t modify discriminator key "' + discriminatorKey + '" on discriminator model');
+        aggregatedError = _appendError(err, context, discriminatorKey, aggregatedError);
+        continue;
+      } else if (strictMode) {
+        delete obj[key];
+        continue;
+      }
+    }
+
+    if (getConstructorName(val) === 'Object') {
+      // watch for embedded doc schemas
+      schematype = schema._getSchema(prefix + key);
+
+      if (schematype == null) {
+        const _res = getEmbeddedDiscriminatorPath(schema, obj, filter, prefix + key, options);
+        if (_res.schematype != null) {
+          schematype = _res.schematype;
+        }
+      }
+
+      if (op !== '$setOnInsert' &&
+          handleImmutable(schematype, strict, obj, key, prefix + key, options, context)) {
+        continue;
+      }
+
+      if (schematype && schematype.caster && op in castOps) {
+        // embedded doc schema
+        if ('$each' in val) {
+          hasKeys = true;
+          try {
+            obj[key] = {
+              $each: castUpdateVal(schematype, val.$each, op, key, context, prefix + key)
+            };
+          } catch (error) {
+            aggregatedError = _appendError(error, context, key, aggregatedError);
+          }
+
+          if (val.$slice != null) {
+            obj[key].$slice = val.$slice | 0;
+          }
+
+          if (val.$sort) {
+            obj[key].$sort = val.$sort;
+          }
+
+          if (val.$position != null) {
+            obj[key].$position = castNumber(val.$position);
+          }
+        } else {
+          if (schematype != null && schematype.$isSingleNested) {
+            const _strict = strict == null ? schematype.schema.options.strict : strict;
+            try {
+              obj[key] = schematype.castForQuery(null, val, context, { strict: _strict });
+            } catch (error) {
+              aggregatedError = _appendError(error, context, key, aggregatedError);
+            }
+          } else {
+            try {
+              obj[key] = castUpdateVal(schematype, val, op, key, context, prefix + key);
+            } catch (error) {
+              aggregatedError = _appendError(error, context, key, aggregatedError);
+            }
+          }
+
+          if (obj[key] === void 0) {
+            delete obj[key];
+            continue;
+          }
+
+          hasKeys = true;
+        }
+      } else if ((op === '$currentDate') || (op in castOps && schematype)) {
+        // $currentDate can take an object
+        try {
+          obj[key] = castUpdateVal(schematype, val, op, key, context, prefix + key);
+        } catch (error) {
+          aggregatedError = _appendError(error, context, key, aggregatedError);
+        }
+
+        if (obj[key] === void 0) {
+          delete obj[key];
+          continue;
+        }
+
+        hasKeys = true;
+      } else if (op === '$rename') {
+        const schematype = new SchemaString(`${prefix}${key}.$rename`);
+        try {
+          obj[key] = castUpdateVal(schematype, val, op, key, context, prefix + key);
+        } catch (error) {
+          aggregatedError = _appendError(error, context, key, aggregatedError);
+        }
+
+        if (obj[key] === void 0) {
+          delete obj[key];
+          continue;
+        }
+
+        hasKeys = true;
+      } else {
+        const pathToCheck = (prefix + key);
+        const v = schema._getPathType(pathToCheck);
+        let _strict = strict;
+        if (v && v.schema && _strict == null) {
+          _strict = v.schema.options.strict;
+        }
+
+        if (v.pathType === 'undefined') {
+          if (_strict === 'throw') {
+            throw new StrictModeError(pathToCheck);
+          } else if (_strict) {
+            delete obj[key];
+            continue;
+          }
+        }
+
+        // gh-2314
+        // we should be able to set a schema-less field
+        // to an empty object literal
+        hasKeys |= walkUpdatePath(schema, val, op, options, context, filter, prefix + key) ||
+          (utils.isObject(val) && Object.keys(val).length === 0);
+      }
+    } else {
+      const checkPath = (key === '$each' || key === '$or' || key === '$and' || key === '$in') ?
+        pref : prefix + key;
+      schematype = schema._getSchema(checkPath);
+
+      // You can use `$setOnInsert` with immutable keys
+      if (op !== '$setOnInsert' &&
+          handleImmutable(schematype, strict, obj, key, prefix + key, options, context)) {
+        continue;
+      }
+
+      let pathDetails = schema._getPathType(checkPath);
+
+      // If no schema type, check for embedded discriminators because the
+      // filter or update may imply an embedded discriminator type. See #8378
+      if (schematype == null) {
+        const _res = getEmbeddedDiscriminatorPath(schema, obj, filter, checkPath, options);
+        if (_res.schematype != null) {
+          schematype = _res.schematype;
+          pathDetails = _res.type;
+        }
+      }
+
+      let isStrict = strict;
+      if (pathDetails && pathDetails.schema && strict == null) {
+        isStrict = pathDetails.schema.options.strict;
+      }
+
+      const skip = isStrict &&
+        !schematype &&
+        !/real|nested/.test(pathDetails.pathType);
+
+      if (skip) {
+        // Even if strict is `throw`, avoid throwing an error because of
+        // virtuals because of #6731
+        if (isStrict === 'throw' && schema.virtuals[checkPath] == null) {
+          throw new StrictModeError(prefix + key);
+        } else {
+          delete obj[key];
+        }
+      } else {
+        if (op === '$rename') {
+          if (obj[key] == null) {
+            throw new CastError('String', obj[key], `${prefix}${key}.$rename`);
+          }
+          const schematype = new SchemaString(`${prefix}${key}.$rename`);
+          obj[key] = schematype.castForQuery(null, obj[key], context);
+          continue;
+        }
+
+        try {
+          if (prefix.length === 0 || key.indexOf('.') === -1) {
+            obj[key] = castUpdateVal(schematype, val, op, key, context, prefix + key);
+          } else if (isStrict !== false || schematype != null) {
+            // Setting a nested dotted path that's in the schema. We don't allow paths with '.' in
+            // a schema, so replace the dotted path with a nested object to avoid ending up with
+            // dotted properties in the updated object. See (gh-10200)
+            setDottedPath(obj, key, castUpdateVal(schematype, val, op, key, context, prefix + key));
+            delete obj[key];
+          }
+        } catch (error) {
+          aggregatedError = _appendError(error, context, key, aggregatedError);
+        }
+
+        if (Array.isArray(obj[key]) && (op === '$addToSet' || op === '$push') && key !== '$each') {
+          if (schematype &&
+              schematype.caster &&
+              !schematype.caster.$isMongooseArray &&
+              !schematype.caster[schemaMixedSymbol]) {
+            obj[key] = { $each: obj[key] };
+          }
+        }
+
+        if (obj[key] === void 0) {
+          delete obj[key];
+          continue;
+        }
+
+        hasKeys = true;
+      }
+    }
+  }
+
+  if (aggregatedError != null) {
+    throw aggregatedError;
+  }
+
+  return hasKeys;
+}
+
+/*!
+ * ignore
+ */
+
+function _appendError(error, query, key, aggregatedError) {
+  if (typeof query !== 'object' || !query.options.multipleCastError) {
+    throw error;
+  }
+  aggregatedError = aggregatedError || new ValidationError();
+  aggregatedError.addError(key, error);
+  return aggregatedError;
+}
+
+/**
+ * These operators should be cast to numbers instead
+ * of their path schema type.
+ * @api private
+ */
+
+const numberOps = {
+  $pop: 1,
+  $inc: 1
+};
+
+/**
+ * These ops require no casting because the RHS doesn't do anything.
+ * @api private
+ */
+
+const noCastOps = {
+  $unset: 1
+};
+
+/**
+ * These operators require casting docs
+ * to real Documents for Update operations.
+ * @api private
+ */
+
+const castOps = {
+  $push: 1,
+  $addToSet: 1,
+  $set: 1,
+  $setOnInsert: 1
+};
+
+/*!
+ * ignore
+ */
+
+const overwriteOps = {
+  $set: 1,
+  $setOnInsert: 1
+};
+
+/**
+ * Casts `val` according to `schema` and atomic `op`.
+ *
+ * @param {SchemaType} schema
+ * @param {Object} val
+ * @param {String} op the atomic operator ($pull, $set, etc)
+ * @param {String} $conditional
+ * @param {Query} context
+ * @param {String} path
+ * @api private
+ */
+
+function castUpdateVal(schema, val, op, $conditional, context, path) {
+  if (!schema) {
+    // non-existing schema path
+    if (op in numberOps) {
+      try {
+        return castNumber(val);
+      } catch (err) {
+        throw new CastError('number', val, path);
+      }
+    }
+    return val;
+  }
+
+  // console.log('CastUpdateVal', path, op, val, schema);
+
+  const cond = schema.caster && op in castOps &&
+      (utils.isObject(val) || Array.isArray(val));
+  if (cond && !overwriteOps[op]) {
+    // Cast values for ops that add data to MongoDB.
+    // Ensures embedded documents get ObjectIds etc.
+    let schemaArrayDepth = 0;
+    let cur = schema;
+    while (cur.$isMongooseArray) {
+      ++schemaArrayDepth;
+      cur = cur.caster;
+    }
+    let arrayDepth = 0;
+    let _val = val;
+    while (Array.isArray(_val)) {
+      ++arrayDepth;
+      _val = _val[0];
+    }
+
+    const additionalNesting = schemaArrayDepth - arrayDepth;
+    while (arrayDepth < schemaArrayDepth) {
+      val = [val];
+      ++arrayDepth;
+    }
+
+    let tmp = schema.applySetters(Array.isArray(val) ? val : [val], context);
+
+    for (let i = 0; i < additionalNesting; ++i) {
+      tmp = tmp[0];
+    }
+    return tmp;
+  }
+
+  if (op in noCastOps) {
+    return val;
+  }
+  if (op in numberOps) {
+    // Null and undefined not allowed for $pop, $inc
+    if (val == null) {
+      throw new CastError('number', val, schema.path);
+    }
+    if (op === '$inc') {
+      // Support `$inc` with long, int32, etc. (gh-4283)
+      return schema.castForQuery(
+        null,
+        val,
+        context
+      );
+    }
+    try {
+      return castNumber(val);
+    } catch (error) {
+      throw new CastError('number', val, schema.path);
+    }
+  }
+  if (op === '$currentDate') {
+    if (typeof val === 'object') {
+      return { $type: val.$type };
+    }
+    return Boolean(val);
+  }
+
+  if (mongodbUpdateOperators.has($conditional)) {
+    return schema.castForQuery(
+      $conditional,
+      val,
+      context
+    );
+  }
+
+  if (overwriteOps[op]) {
+    const skipQueryCastForUpdate = val != null && schema.$isMongooseArray && schema.$fullPath != null && !schema.$fullPath.match(/\d+$/);
+    const applySetters = schema[schemaMixedSymbol] != null;
+    if (skipQueryCastForUpdate || applySetters) {
+      return schema.applySetters(val, context);
+    }
+    return schema.castForQuery(
+      null,
+      val,
+      context
+    );
+  }
+
+  return schema.castForQuery(null, val, context);
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/query/getEmbeddedDiscriminatorPath.js b/backend/node_modules/mongoose/lib/helpers/query/getEmbeddedDiscriminatorPath.js
new file mode 100644
index 0000000..548cf3b
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/query/getEmbeddedDiscriminatorPath.js
@@ -0,0 +1,100 @@
+'use strict';
+
+const cleanPositionalOperators = require('../schema/cleanPositionalOperators');
+const get = require('../get');
+const getDiscriminatorByValue = require('../discriminator/getDiscriminatorByValue');
+const updatedPathsByArrayFilter = require('../update/updatedPathsByArrayFilter');
+
+/**
+ * Like `schema.path()`, except with a document, because impossible to
+ * determine path type without knowing the embedded discriminator key.
+ * @param {Schema} schema
+ * @param {Object} [update]
+ * @param {Object} [filter]
+ * @param {String} path
+ * @param {Object} [options]
+ * @api private
+ */
+
+module.exports = function getEmbeddedDiscriminatorPath(schema, update, filter, path, options) {
+  const parts = path.split('.');
+  let schematype = null;
+  let type = 'adhocOrUndefined';
+
+  filter = filter || {};
+  update = update || {};
+  const arrayFilters = options != null && Array.isArray(options.arrayFilters) ?
+    options.arrayFilters : [];
+  const updatedPathsByFilter = updatedPathsByArrayFilter(update);
+
+  for (let i = 0; i < parts.length; ++i) {
+    const originalSubpath = parts.slice(0, i + 1).join('.');
+    const subpath = cleanPositionalOperators(originalSubpath);
+    schematype = schema.path(subpath);
+    if (schematype == null) {
+      continue;
+    }
+
+    type = schema.pathType(subpath);
+    if ((schematype.$isSingleNested || schematype.$isMongooseDocumentArrayElement) &&
+        schematype.schema.discriminators != null) {
+      const key = get(schematype, 'schema.options.discriminatorKey');
+      const discriminatorValuePath = subpath + '.' + key;
+      const discriminatorFilterPath =
+        discriminatorValuePath.replace(/\.\d+\./, '.');
+      let discriminatorKey = null;
+
+      if (discriminatorValuePath in filter) {
+        discriminatorKey = filter[discriminatorValuePath];
+      }
+      if (discriminatorFilterPath in filter) {
+        discriminatorKey = filter[discriminatorFilterPath];
+      }
+
+      const wrapperPath = subpath.replace(/\.\d+$/, '');
+      if (schematype.$isMongooseDocumentArrayElement &&
+          get(filter[wrapperPath], '$elemMatch.' + key) != null) {
+        discriminatorKey = filter[wrapperPath].$elemMatch[key];
+      }
+
+      const discriminatorKeyUpdatePath = originalSubpath + '.' + key;
+      if (discriminatorKeyUpdatePath in update) {
+        discriminatorKey = update[discriminatorKeyUpdatePath];
+      }
+
+      if (discriminatorValuePath in update) {
+        discriminatorKey = update[discriminatorValuePath];
+      }
+
+      for (const filterKey of Object.keys(updatedPathsByFilter)) {
+        const schemaKey = updatedPathsByFilter[filterKey] + '.' + key;
+        const arrayFilterKey = filterKey + '.' + key;
+        if (schemaKey === discriminatorFilterPath) {
+          const filter = arrayFilters.find(filter => filter.hasOwnProperty(arrayFilterKey));
+          if (filter != null) {
+            discriminatorKey = filter[arrayFilterKey];
+          }
+        }
+      }
+
+      if (discriminatorKey == null) {
+        continue;
+      }
+
+      const discriminator = getDiscriminatorByValue(schematype.caster.discriminators, discriminatorKey);
+      const discriminatorSchema = discriminator && discriminator.schema;
+      if (discriminatorSchema == null) {
+        continue;
+      }
+
+      const rest = parts.slice(i + 1).join('.');
+      schematype = discriminatorSchema.path(rest);
+      if (schematype != null) {
+        type = discriminatorSchema._getPathType(rest);
+        break;
+      }
+    }
+  }
+
+  return { type: type, schematype: schematype };
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/query/handleImmutable.js b/backend/node_modules/mongoose/lib/helpers/query/handleImmutable.js
new file mode 100644
index 0000000..0102db4
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/query/handleImmutable.js
@@ -0,0 +1,44 @@
+'use strict';
+
+const StrictModeError = require('../../error/strict');
+
+/**
+ * Handle immutable option for a given path when casting updates based on options
+ *
+ * @param {SchemaType} schematype the resolved schematype for this path
+ * @param {Boolean | 'throw' | null} strict whether strict mode is set for this query
+ * @param {Object} obj the object containing the value being checked so we can delete
+ * @param {String} key the key in `obj` which we are checking for immutability
+ * @param {String} fullPath the full path being checked
+ * @param {Object} options the query options
+ * @param {Query} ctx the query. Passed as `this` and first param to the `immutable` option, if `immutable` is a function
+ * @returns true if field was removed, false otherwise
+ */
+
+module.exports = function handleImmutable(schematype, strict, obj, key, fullPath, options, ctx) {
+  if (schematype == null || !schematype.options || !schematype.options.immutable) {
+    return false;
+  }
+  let immutable = schematype.options.immutable;
+
+  if (typeof immutable === 'function') {
+    immutable = immutable.call(ctx, ctx);
+  }
+  if (!immutable) {
+    return false;
+  }
+
+  if (options && options.overwriteImmutable) {
+    return false;
+  }
+  if (strict === false) {
+    return false;
+  }
+  if (strict === 'throw') {
+    throw new StrictModeError(null,
+      `Field ${fullPath} is immutable and strict = 'throw'`);
+  }
+
+  delete obj[key];
+  return true;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/query/handleReadPreferenceAliases.js b/backend/node_modules/mongoose/lib/helpers/query/handleReadPreferenceAliases.js
new file mode 100644
index 0000000..c3af278
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/query/handleReadPreferenceAliases.js
@@ -0,0 +1,23 @@
+'use strict';
+
+module.exports = function handleReadPreferenceAliases(pref) {
+  switch (pref) {
+    case 'p':
+      pref = 'primary';
+      break;
+    case 'pp':
+      pref = 'primaryPreferred';
+      break;
+    case 's':
+      pref = 'secondary';
+      break;
+    case 'sp':
+      pref = 'secondaryPreferred';
+      break;
+    case 'n':
+      pref = 'nearest';
+      break;
+  }
+
+  return pref;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/query/hasDollarKeys.js b/backend/node_modules/mongoose/lib/helpers/query/hasDollarKeys.js
new file mode 100644
index 0000000..3e3b188
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/query/hasDollarKeys.js
@@ -0,0 +1,23 @@
+'use strict';
+
+/*!
+ * ignore
+ */
+
+module.exports = function hasDollarKeys(obj) {
+
+  if (typeof obj !== 'object' || obj === null) {
+    return false;
+  }
+
+  const keys = Object.keys(obj);
+  const len = keys.length;
+
+  for (let i = 0; i < len; ++i) {
+    if (keys[i][0] === '$') {
+      return true;
+    }
+  }
+
+  return false;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/query/isOperator.js b/backend/node_modules/mongoose/lib/helpers/query/isOperator.js
new file mode 100644
index 0000000..0448859
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/query/isOperator.js
@@ -0,0 +1,14 @@
+'use strict';
+
+const specialKeys = new Set([
+  '$ref',
+  '$id',
+  '$db'
+]);
+
+module.exports = function isOperator(path) {
+  return (
+    path[0] === '$' &&
+    !specialKeys.has(path)
+  );
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/query/sanitizeFilter.js b/backend/node_modules/mongoose/lib/helpers/query/sanitizeFilter.js
new file mode 100644
index 0000000..1147df3
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/query/sanitizeFilter.js
@@ -0,0 +1,38 @@
+'use strict';
+
+const hasDollarKeys = require('./hasDollarKeys');
+const { trustedSymbol } = require('./trusted');
+
+module.exports = function sanitizeFilter(filter) {
+  if (filter == null || typeof filter !== 'object') {
+    return filter;
+  }
+  if (Array.isArray(filter)) {
+    for (const subfilter of filter) {
+      sanitizeFilter(subfilter);
+    }
+    return filter;
+  }
+
+  const filterKeys = Object.keys(filter);
+  for (const key of filterKeys) {
+    const value = filter[key];
+    if (value != null && value[trustedSymbol]) {
+      continue;
+    }
+    if (key === '$and' || key === '$or') {
+      sanitizeFilter(value);
+      continue;
+    }
+
+    if (hasDollarKeys(value)) {
+      const keys = Object.keys(value);
+      if (keys.length === 1 && keys[0] === '$eq') {
+        continue;
+      }
+      filter[key] = { $eq: filter[key] };
+    }
+  }
+
+  return filter;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/query/sanitizeProjection.js b/backend/node_modules/mongoose/lib/helpers/query/sanitizeProjection.js
new file mode 100644
index 0000000..0c03487
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/query/sanitizeProjection.js
@@ -0,0 +1,14 @@
+'use strict';
+
+module.exports = function sanitizeProjection(projection) {
+  if (projection == null) {
+    return;
+  }
+
+  const keys = Object.keys(projection);
+  for (let i = 0; i < keys.length; ++i) {
+    if (typeof projection[keys[i]] === 'string') {
+      projection[keys[i]] = 1;
+    }
+  }
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/query/selectPopulatedFields.js b/backend/node_modules/mongoose/lib/helpers/query/selectPopulatedFields.js
new file mode 100644
index 0000000..dc96caf
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/query/selectPopulatedFields.js
@@ -0,0 +1,62 @@
+'use strict';
+
+const isExclusive = require('../projection/isExclusive');
+const isInclusive = require('../projection/isInclusive');
+
+/*!
+ * ignore
+ */
+
+module.exports = function selectPopulatedFields(fields, userProvidedFields, populateOptions) {
+  if (populateOptions == null) {
+    return;
+  }
+
+  const paths = Object.keys(populateOptions);
+  userProvidedFields = userProvidedFields || {};
+  if (isInclusive(fields)) {
+    for (const path of paths) {
+      if (!isPathInFields(userProvidedFields, path)) {
+        fields[path] = 1;
+      } else if (userProvidedFields[path] === 0) {
+        delete fields[path];
+      }
+
+      const refPath = populateOptions[path]?.refPath;
+      if (typeof refPath === 'string') {
+        if (!isPathInFields(userProvidedFields, refPath)) {
+          fields[refPath] = 1;
+        } else if (userProvidedFields[refPath] === 0) {
+          delete fields[refPath];
+        }
+      }
+    }
+  } else if (isExclusive(fields)) {
+    for (const path of paths) {
+      if (userProvidedFields[path] == null) {
+        delete fields[path];
+      }
+      const refPath = populateOptions[path]?.refPath;
+      if (typeof refPath === 'string' && userProvidedFields[refPath] == null) {
+        delete fields[refPath];
+      }
+    }
+  }
+};
+
+/*!
+ * ignore
+ */
+
+function isPathInFields(userProvidedFields, path) {
+  const pieces = path.split('.');
+  const len = pieces.length;
+  let cur = pieces[0];
+  for (let i = 1; i < len; ++i) {
+    if (userProvidedFields[cur] != null || userProvidedFields[cur + '.$'] != null) {
+      return true;
+    }
+    cur += '.' + pieces[i];
+  }
+  return userProvidedFields[cur] != null || userProvidedFields[cur + '.$'] != null;
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/query/trusted.js b/backend/node_modules/mongoose/lib/helpers/query/trusted.js
new file mode 100644
index 0000000..1e460eb
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/query/trusted.js
@@ -0,0 +1,13 @@
+'use strict';
+
+const trustedSymbol = Symbol('mongoose#trustedSymbol');
+
+exports.trustedSymbol = trustedSymbol;
+
+exports.trusted = function trusted(obj) {
+  if (obj == null || typeof obj !== 'object') {
+    return obj;
+  }
+  obj[trustedSymbol] = true;
+  return obj;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/query/validOps.js b/backend/node_modules/mongoose/lib/helpers/query/validOps.js
new file mode 100644
index 0000000..2d1aa47
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/query/validOps.js
@@ -0,0 +1,3 @@
+'use strict';
+
+module.exports = require('../../constants').queryMiddlewareFunctions;
diff --git a/backend/node_modules/mongoose/lib/helpers/schema/addAutoId.js b/backend/node_modules/mongoose/lib/helpers/schema/addAutoId.js
new file mode 100644
index 0000000..82c0c60
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/schema/addAutoId.js
@@ -0,0 +1,7 @@
+'use strict';
+
+module.exports = function addAutoId(schema) {
+  const _obj = { _id: { auto: true } };
+  _obj._id[schema.options.typeKey] = 'ObjectId';
+  schema.add(_obj);
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/schema/applyBuiltinPlugins.js b/backend/node_modules/mongoose/lib/helpers/schema/applyBuiltinPlugins.js
new file mode 100644
index 0000000..8bd7319
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/schema/applyBuiltinPlugins.js
@@ -0,0 +1,12 @@
+'use strict';
+
+const builtinPlugins = require('../../plugins');
+
+module.exports = function applyBuiltinPlugins(schema) {
+  for (const plugin of Object.values(builtinPlugins)) {
+    plugin(schema, { deduplicate: true });
+  }
+  schema.plugins = Object.values(builtinPlugins).
+    map(fn => ({ fn, opts: { deduplicate: true } })).
+    concat(schema.plugins);
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/schema/applyPlugins.js b/backend/node_modules/mongoose/lib/helpers/schema/applyPlugins.js
new file mode 100644
index 0000000..fe97680
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/schema/applyPlugins.js
@@ -0,0 +1,55 @@
+'use strict';
+
+module.exports = function applyPlugins(schema, plugins, options, cacheKey) {
+  if (schema[cacheKey]) {
+    return;
+  }
+  schema[cacheKey] = true;
+
+  if (!options || !options.skipTopLevel) {
+    let pluginTags = null;
+    for (const plugin of plugins) {
+      const tags = plugin[1] == null ? null : plugin[1].tags;
+      if (!Array.isArray(tags)) {
+        schema.plugin(plugin[0], plugin[1]);
+        continue;
+      }
+
+      pluginTags = pluginTags || new Set(schema.options.pluginTags || []);
+      if (!tags.find(tag => pluginTags.has(tag))) {
+        continue;
+      }
+      schema.plugin(plugin[0], plugin[1]);
+    }
+  }
+
+  options = Object.assign({}, options);
+  delete options.skipTopLevel;
+
+  if (options.applyPluginsToChildSchemas !== false) {
+    for (const path of Object.keys(schema.paths)) {
+      const type = schema.paths[path];
+      if (type.schema != null) {
+        applyPlugins(type.schema, plugins, options, cacheKey);
+
+        // Recompile schema because plugins may have changed it, see gh-7572
+        type.caster.prototype.$__setSchema(type.schema);
+      }
+    }
+  }
+
+  const discriminators = schema.discriminators;
+  if (discriminators == null) {
+    return;
+  }
+
+  const applyPluginsToDiscriminators = options.applyPluginsToDiscriminators;
+
+  const keys = Object.keys(discriminators);
+  for (const discriminatorKey of keys) {
+    const discriminatorSchema = discriminators[discriminatorKey];
+
+    applyPlugins(discriminatorSchema, plugins,
+      { skipTopLevel: !applyPluginsToDiscriminators }, cacheKey);
+  }
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/schema/applyReadConcern.js b/backend/node_modules/mongoose/lib/helpers/schema/applyReadConcern.js
new file mode 100644
index 0000000..050fa9c
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/schema/applyReadConcern.js
@@ -0,0 +1,20 @@
+'use strict';
+
+module.exports = function applyReadConcern(schema, options) {
+  if (options.readConcern !== undefined) {
+    return;
+  }
+
+  // Don't apply default read concern to operations in transactions,
+  // because you shouldn't set read concern on individual operations
+  // within a transaction.
+  // See: https://www.mongodb.com/docs/manual/reference/read-concern/
+  if (options && options.session && options.session.transaction) {
+    return;
+  }
+
+  const level = schema.options?.readConcern?.level;
+  if (level != null) {
+    options.readConcern = { level };
+  }
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/schema/applyWriteConcern.js b/backend/node_modules/mongoose/lib/helpers/schema/applyWriteConcern.js
new file mode 100644
index 0000000..28338cf
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/schema/applyWriteConcern.js
@@ -0,0 +1,37 @@
+'use strict';
+
+module.exports = function applyWriteConcern(schema, options) {
+  if (options.writeConcern != null) {
+    return;
+  }
+  // Don't apply default write concern to operations in transactions,
+  // because setting write concern on an operation in a transaction is an error
+  // See: https://www.mongodb.com/docs/manual/reference/write-concern/
+  if (options && options.session && options.session.transaction) {
+    return;
+  }
+  const writeConcern = schema.options.writeConcern ?? {};
+  if (Object.keys(writeConcern).length != 0) {
+    options.writeConcern = {};
+    if (!('w' in options) && writeConcern.w != null) {
+      options.writeConcern.w = writeConcern.w;
+    }
+    if (!('j' in options) && writeConcern.j != null) {
+      options.writeConcern.j = writeConcern.j;
+    }
+    if (!('wtimeout' in options) && writeConcern.wtimeout != null) {
+      options.writeConcern.wtimeout = writeConcern.wtimeout;
+    }
+  }
+  else {
+    if (!('w' in options) && writeConcern.w != null) {
+      options.w = writeConcern.w;
+    }
+    if (!('j' in options) && writeConcern.j != null) {
+      options.j = writeConcern.j;
+    }
+    if (!('wtimeout' in options) && writeConcern.wtimeout != null) {
+      options.wtimeout = writeConcern.wtimeout;
+    }
+  }
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/schema/cleanPositionalOperators.js b/backend/node_modules/mongoose/lib/helpers/schema/cleanPositionalOperators.js
new file mode 100644
index 0000000..f104d03
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/schema/cleanPositionalOperators.js
@@ -0,0 +1,12 @@
+'use strict';
+
+/**
+ * For consistency's sake, we replace positional operator `$` and array filters
+ * `$[]` and `$[foo]` with `0` when looking up schema paths.
+ */
+
+module.exports = function cleanPositionalOperators(path) {
+  return path.
+    replace(/\.\$(\[[^\]]*\])?(?=\.)/g, '.0').
+    replace(/\.\$(\[[^\]]*\])?$/g, '.0');
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/schema/getIndexes.js b/backend/node_modules/mongoose/lib/helpers/schema/getIndexes.js
new file mode 100644
index 0000000..706439d
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/schema/getIndexes.js
@@ -0,0 +1,177 @@
+'use strict';
+
+const get = require('../get');
+const helperIsObject = require('../isObject');
+const decorateDiscriminatorIndexOptions = require('../indexes/decorateDiscriminatorIndexOptions');
+
+/**
+ * Gather all indexes defined in the schema, including single nested,
+ * document arrays, and embedded discriminators.
+ * @param {Schema} schema
+ * @api private
+ */
+
+module.exports = function getIndexes(schema) {
+  let indexes = [];
+  const schemaStack = new WeakMap();
+  const indexTypes = schema.constructor.indexTypes;
+  const indexByName = new Map();
+
+  collectIndexes(schema);
+  return indexes;
+
+  function collectIndexes(schema, prefix, baseSchema) {
+    // Ignore infinitely nested schemas, if we've already seen this schema
+    // along this path there must be a cycle
+    if (schemaStack.has(schema)) {
+      return;
+    }
+    schemaStack.set(schema, true);
+
+    prefix = prefix || '';
+    const keys = Object.keys(schema.paths);
+
+    for (const key of keys) {
+      const path = schema.paths[key];
+      if (baseSchema != null && baseSchema.paths[key]) {
+        // If looking at an embedded discriminator schema, don't look at paths
+        // that the
+        continue;
+      }
+
+      if (path._duplicateKeyErrorMessage != null) {
+        schema._duplicateKeyErrorMessagesByPath = schema._duplicateKeyErrorMessagesByPath || {};
+        schema._duplicateKeyErrorMessagesByPath[key] = path._duplicateKeyErrorMessage;
+      }
+
+      if (path.$isMongooseDocumentArray || path.$isSingleNested) {
+        if (get(path, 'options.excludeIndexes') !== true &&
+            get(path, 'schemaOptions.excludeIndexes') !== true &&
+            get(path, 'schema.options.excludeIndexes') !== true) {
+          collectIndexes(path.schema, prefix + key + '.');
+        }
+
+        if (path.schema.discriminators != null) {
+          const discriminators = path.schema.discriminators;
+          const discriminatorKeys = Object.keys(discriminators);
+          for (const discriminatorKey of discriminatorKeys) {
+            collectIndexes(discriminators[discriminatorKey],
+              prefix + key + '.', path.schema);
+          }
+        }
+
+        // Retained to minimize risk of backwards breaking changes due to
+        // gh-6113
+        if (path.$isMongooseDocumentArray) {
+          continue;
+        }
+      }
+
+      const index = path._index || (path.caster && path.caster._index);
+
+      if (index !== false && index !== null && index !== undefined) {
+        const field = {};
+        const isObject = helperIsObject(index);
+        const options = isObject ? index : {};
+        const type = typeof index === 'string' ? index :
+          isObject ? index.type :
+            false;
+
+        if (type && indexTypes.indexOf(type) !== -1) {
+          field[prefix + key] = type;
+        } else if (options.text) {
+          field[prefix + key] = 'text';
+          delete options.text;
+        } else {
+          let isDescendingIndex = false;
+          if (index === 'descending' || index === 'desc') {
+            isDescendingIndex = true;
+          } else if (index === 'ascending' || index === 'asc') {
+            isDescendingIndex = false;
+          } else {
+            isDescendingIndex = Number(index) === -1;
+          }
+
+          field[prefix + key] = isDescendingIndex ? -1 : 1;
+        }
+
+        delete options.type;
+        if (!('background' in options)) {
+          options.background = true;
+        }
+        if (schema.options.autoIndex != null) {
+          options._autoIndex = schema.options.autoIndex;
+        }
+
+        const indexName = options && options.name;
+
+        if (typeof indexName === 'string') {
+          if (indexByName.has(indexName)) {
+            Object.assign(indexByName.get(indexName), field);
+          } else {
+            indexes.push([field, options]);
+            indexByName.set(indexName, field);
+          }
+        } else {
+          indexes.push([field, options]);
+          indexByName.set(indexName, field);
+        }
+      }
+    }
+
+    schemaStack.delete(schema);
+
+    if (prefix) {
+      fixSubIndexPaths(schema, prefix);
+    } else {
+      schema._indexes.forEach(function(index) {
+        const options = index[1];
+        if (!('background' in options)) {
+          options.background = true;
+        }
+        decorateDiscriminatorIndexOptions(schema, options);
+      });
+      indexes = indexes.concat(schema._indexes);
+    }
+  }
+
+  /**
+   * Checks for indexes added to subdocs using Schema.index().
+   * These indexes need their paths prefixed properly.
+   *
+   * schema._indexes = [ [indexObj, options], [indexObj, options] ..]
+   * @param {Schema} schema
+   * @param {String} prefix
+   * @api private
+   */
+
+  function fixSubIndexPaths(schema, prefix) {
+    const subindexes = schema._indexes;
+    const len = subindexes.length;
+    for (let i = 0; i < len; ++i) {
+      const indexObj = subindexes[i][0];
+      const indexOptions = subindexes[i][1];
+      const keys = Object.keys(indexObj);
+      const klen = keys.length;
+      const newindex = {};
+
+      // use forward iteration, order matters
+      for (let j = 0; j < klen; ++j) {
+        const key = keys[j];
+        newindex[prefix + key] = indexObj[key];
+      }
+
+      const newIndexOptions = Object.assign({}, indexOptions);
+      if (indexOptions != null && indexOptions.partialFilterExpression != null) {
+        newIndexOptions.partialFilterExpression = {};
+        const partialFilterExpression = indexOptions.partialFilterExpression;
+        for (const key of Object.keys(partialFilterExpression)) {
+          newIndexOptions.partialFilterExpression[prefix + key] =
+            partialFilterExpression[key];
+        }
+      }
+
+      indexes.push([newindex, newIndexOptions]);
+    }
+  }
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/schema/getKeysInSchemaOrder.js b/backend/node_modules/mongoose/lib/helpers/schema/getKeysInSchemaOrder.js
new file mode 100644
index 0000000..83b7fd8
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/schema/getKeysInSchemaOrder.js
@@ -0,0 +1,28 @@
+'use strict';
+
+const get = require('../get');
+
+module.exports = function getKeysInSchemaOrder(schema, val, path) {
+  const schemaKeys = path != null ? Object.keys(get(schema.tree, path, {})) : Object.keys(schema.tree);
+  const valKeys = new Set(Object.keys(val));
+
+  let keys;
+  if (valKeys.size > 1) {
+    keys = new Set();
+    for (const key of schemaKeys) {
+      if (valKeys.has(key)) {
+        keys.add(key);
+      }
+    }
+    for (const key of valKeys) {
+      if (!keys.has(key)) {
+        keys.add(key);
+      }
+    }
+    keys = Array.from(keys);
+  } else {
+    keys = Array.from(valKeys);
+  }
+
+  return keys;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/schema/getPath.js b/backend/node_modules/mongoose/lib/helpers/schema/getPath.js
new file mode 100644
index 0000000..b881069
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/schema/getPath.js
@@ -0,0 +1,37 @@
+'use strict';
+
+const numberRE = /^\d+$/;
+
+/**
+ * Behaves like `Schema#path()`, except for it also digs into arrays without
+ * needing to put `.0.`, so `getPath(schema, 'docArr.elProp')` works.
+ * @api private
+ */
+
+module.exports = function getPath(schema, path) {
+  let schematype = schema.path(path);
+  if (schematype != null) {
+    return schematype;
+  }
+  const pieces = path.split('.');
+  let cur = '';
+  let isArray = false;
+
+  for (const piece of pieces) {
+    if (isArray && numberRE.test(piece)) {
+      continue;
+    }
+    cur = cur.length === 0 ? piece : cur + '.' + piece;
+
+    schematype = schema.path(cur);
+    if (schematype != null && schematype.schema) {
+      schema = schematype.schema;
+      cur = '';
+      if (!isArray && schematype.$isMongooseDocumentArray) {
+        isArray = true;
+      }
+    }
+  }
+
+  return schematype;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/schema/getSubdocumentStrictValue.js b/backend/node_modules/mongoose/lib/helpers/schema/getSubdocumentStrictValue.js
new file mode 100644
index 0000000..8a8f83e
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/schema/getSubdocumentStrictValue.js
@@ -0,0 +1,32 @@
+'use strict';
+
+/**
+ * Find the `strict` mode setting for the deepest subdocument along a given path
+ * to ensure we have the correct default value for `strict`. When setting values
+ * underneath a subdocument, we should use the subdocument's `strict` setting by
+ * default, not the top-level document's.
+ *
+ * @param {Schema} schema
+ * @param {String[]} parts
+ * @returns {boolean | 'throw' | undefined}
+ */
+
+module.exports = function getSubdocumentStrictValue(schema, parts) {
+  if (parts.length === 1) {
+    return undefined;
+  }
+  let cur = parts[0];
+  let strict = undefined;
+  for (let i = 0; i < parts.length - 1; ++i) {
+    const curSchemaType = schema.path(cur);
+    if (curSchemaType && curSchemaType.schema) {
+      strict = curSchemaType.schema.options.strict;
+      schema = curSchemaType.schema;
+      cur = curSchemaType.$isMongooseDocumentArray && !isNaN(parts[i + 1]) ? '' : parts[i + 1];
+    } else {
+      cur += cur.length ? ('.' + parts[i + 1]) : parts[i + 1];
+    }
+  }
+
+  return strict;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/schema/handleIdOption.js b/backend/node_modules/mongoose/lib/helpers/schema/handleIdOption.js
new file mode 100644
index 0000000..335ff2b
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/schema/handleIdOption.js
@@ -0,0 +1,20 @@
+'use strict';
+
+const addAutoId = require('./addAutoId');
+
+module.exports = function handleIdOption(schema, options) {
+  if (options == null || options._id == null) {
+    return schema;
+  }
+
+  schema = schema.clone();
+  if (!options._id) {
+    schema.remove('_id');
+    schema.options._id = false;
+  } else if (!schema.paths['_id']) {
+    addAutoId(schema);
+    schema.options._id = true;
+  }
+
+  return schema;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/schema/handleTimestampOption.js b/backend/node_modules/mongoose/lib/helpers/schema/handleTimestampOption.js
new file mode 100644
index 0000000..0f9c30c
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/schema/handleTimestampOption.js
@@ -0,0 +1,24 @@
+'use strict';
+
+module.exports = handleTimestampOption;
+
+/*!
+ * ignore
+ */
+
+function handleTimestampOption(arg, prop) {
+  if (arg == null) {
+    return null;
+  }
+
+  if (typeof arg === 'boolean') {
+    return prop;
+  }
+  if (typeof arg[prop] === 'boolean') {
+    return arg[prop] ? prop : null;
+  }
+  if (!(prop in arg)) {
+    return prop;
+  }
+  return arg[prop];
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/schema/idGetter.js b/backend/node_modules/mongoose/lib/helpers/schema/idGetter.js
new file mode 100644
index 0000000..5b57653
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/schema/idGetter.js
@@ -0,0 +1,34 @@
+'use strict';
+
+/*!
+ * ignore
+ */
+
+module.exports = function addIdGetter(schema) {
+  // ensure the documents receive an id getter unless disabled
+  const autoIdGetter = !schema.paths['id'] &&
+    schema.paths['_id'] &&
+    schema.options.id;
+  if (!autoIdGetter) {
+    return schema;
+  }
+  if (schema.aliases && schema.aliases.id) {
+    return schema;
+  }
+  schema.virtual('id').get(idGetter);
+
+  return schema;
+};
+
+/**
+ * Returns this documents _id cast to a string.
+ * @api private
+ */
+
+function idGetter() {
+  if (this._id != null) {
+    return this._id.toString();
+  }
+
+  return null;
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/schema/merge.js b/backend/node_modules/mongoose/lib/helpers/schema/merge.js
new file mode 100644
index 0000000..e7bb91f
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/schema/merge.js
@@ -0,0 +1,36 @@
+'use strict';
+
+module.exports = function merge(s1, s2, skipConflictingPaths) {
+  const paths = Object.keys(s2.tree);
+  const pathsToAdd = {};
+  for (const key of paths) {
+    if (skipConflictingPaths && (s1.paths[key] || s1.nested[key] || s1.singleNestedPaths[key])) {
+      continue;
+    }
+    pathsToAdd[key] = s2.tree[key];
+  }
+  s1.options._isMerging = true;
+  s1.add(pathsToAdd, null);
+  delete s1.options._isMerging;
+
+  s1.callQueue = s1.callQueue.concat(s2.callQueue);
+  s1.method(s2.methods);
+  s1.static(s2.statics);
+
+  for (const [option, value] of Object.entries(s2._userProvidedOptions)) {
+    if (!(option in s1._userProvidedOptions)) {
+      s1.set(option, value);
+    }
+  }
+
+  for (const query in s2.query) {
+    s1.query[query] = s2.query[query];
+  }
+
+  for (const virtual in s2.virtuals) {
+    s1.virtuals[virtual] = s2.virtuals[virtual].clone();
+  }
+
+  s1._indexes = s1._indexes.concat(s2._indexes || []);
+  s1.s.hooks.merge(s2.s.hooks, false);
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/schematype/handleImmutable.js b/backend/node_modules/mongoose/lib/helpers/schematype/handleImmutable.js
new file mode 100644
index 0000000..cc22c91
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/schematype/handleImmutable.js
@@ -0,0 +1,50 @@
+'use strict';
+
+const StrictModeError = require('../../error/strict');
+
+/*!
+ * ignore
+ */
+
+module.exports = function(schematype) {
+  if (schematype.$immutable) {
+    schematype.$immutableSetter = createImmutableSetter(schematype.path,
+      schematype.options.immutable);
+    schematype.set(schematype.$immutableSetter);
+  } else if (schematype.$immutableSetter) {
+    schematype.setters = schematype.setters.
+      filter(fn => fn !== schematype.$immutableSetter);
+    delete schematype.$immutableSetter;
+  }
+};
+
+function createImmutableSetter(path, immutable) {
+  return function immutableSetter(v, _priorVal, _doc, options) {
+    if (this == null || this.$__ == null) {
+      return v;
+    }
+    if (this.isNew) {
+      return v;
+    }
+    if (options && options.overwriteImmutable) {
+      return v;
+    }
+
+    const _immutable = typeof immutable === 'function' ?
+      immutable.call(this, this) :
+      immutable;
+    if (!_immutable) {
+      return v;
+    }
+
+    const _value = this.$__.priorDoc != null ?
+      this.$__.priorDoc.$__getValue(path) :
+      this.$__getValue(path);
+    if (this.$__.strictMode === 'throw' && v !== _value) {
+      throw new StrictModeError(path, 'Path `' + path + '` is immutable ' +
+        'and strict mode is set to throw.', true);
+    }
+
+    return _value;
+  };
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/setDefaultsOnInsert.js b/backend/node_modules/mongoose/lib/helpers/setDefaultsOnInsert.js
new file mode 100644
index 0000000..a94a5b3
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/setDefaultsOnInsert.js
@@ -0,0 +1,132 @@
+'use strict';
+const modifiedPaths = require('./common').modifiedPaths;
+const get = require('./get');
+
+/**
+ * Applies defaults to update and findOneAndUpdate operations.
+ *
+ * @param {Object} filter
+ * @param {Schema} schema
+ * @param {Object} castedDoc
+ * @param {Object} options
+ * @method setDefaultsOnInsert
+ * @api private
+ */
+
+module.exports = function(filter, schema, castedDoc, options) {
+  options = options || {};
+
+  const shouldSetDefaultsOnInsert =
+    options.setDefaultsOnInsert != null ?
+      options.setDefaultsOnInsert :
+      schema.base.options.setDefaultsOnInsert;
+
+  if (!options.upsert || shouldSetDefaultsOnInsert === false) {
+    return castedDoc;
+  }
+
+  const keys = Object.keys(castedDoc || {});
+  const updatedKeys = {};
+  const updatedValues = {};
+  const numKeys = keys.length;
+  const modified = {};
+
+  let hasDollarUpdate = false;
+
+  for (let i = 0; i < numKeys; ++i) {
+    if (keys[i].startsWith('$')) {
+      modifiedPaths(castedDoc[keys[i]], '', modified);
+      hasDollarUpdate = true;
+    }
+  }
+
+  if (!hasDollarUpdate) {
+    modifiedPaths(castedDoc, '', modified);
+  }
+
+  const paths = Object.keys(filter);
+  const numPaths = paths.length;
+  for (let i = 0; i < numPaths; ++i) {
+    const path = paths[i];
+    const condition = filter[path];
+    if (condition && typeof condition === 'object') {
+      const conditionKeys = Object.keys(condition);
+      const numConditionKeys = conditionKeys.length;
+      let hasDollarKey = false;
+      for (let j = 0; j < numConditionKeys; ++j) {
+        if (conditionKeys[j].startsWith('$')) {
+          hasDollarKey = true;
+          break;
+        }
+      }
+      if (hasDollarKey) {
+        continue;
+      }
+    }
+    updatedKeys[path] = true;
+    modified[path] = true;
+  }
+
+  if (options && options.overwrite && !hasDollarUpdate) {
+    // Defaults will be set later, since we're overwriting we'll cast
+    // the whole update to a document
+    return castedDoc;
+  }
+
+  schema.eachPath(function(path, schemaType) {
+    // Skip single nested paths if underneath a map
+    if (schemaType.path === '_id' && schemaType.options.auto) {
+      return;
+    }
+    const def = schemaType.getDefault(null, true);
+    if (isModified(modified, path)) {
+      return;
+    }
+    if (typeof def === 'undefined') {
+      return;
+    }
+    if (schemaType.splitPath().includes('$*')) {
+      // Skip defaults underneath maps. We should never do `$setOnInsert` on a path with `$*`
+      return;
+    }
+
+    castedDoc = castedDoc || {};
+    castedDoc.$setOnInsert = castedDoc.$setOnInsert || {};
+    if (get(castedDoc, path) == null) {
+      castedDoc.$setOnInsert[path] = def;
+    }
+    updatedValues[path] = def;
+  });
+
+  return castedDoc;
+};
+
+function isModified(modified, path) {
+  if (modified[path]) {
+    return true;
+  }
+
+  // Is any parent path of `path` modified?
+  const sp = path.split('.');
+  let cur = sp[0];
+  for (let i = 1; i < sp.length; ++i) {
+    if (modified[cur]) {
+      return true;
+    }
+    cur += '.' + sp[i];
+  }
+
+  // Is any child of `path` modified?
+  const modifiedKeys = Object.keys(modified);
+  if (modifiedKeys.length) {
+    const parentPath = path + '.';
+
+    for (const modifiedPath of modifiedKeys) {
+      if (modifiedPath.slice(0, path.length + 1) === parentPath) {
+        return true;
+      }
+    }
+  }
+
+  return false;
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/specialProperties.js b/backend/node_modules/mongoose/lib/helpers/specialProperties.js
new file mode 100644
index 0000000..8a961e4
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/specialProperties.js
@@ -0,0 +1,3 @@
+'use strict';
+
+module.exports = new Set(['__proto__', 'constructor', 'prototype']);
diff --git a/backend/node_modules/mongoose/lib/helpers/symbols.js b/backend/node_modules/mongoose/lib/helpers/symbols.js
new file mode 100644
index 0000000..a9af890
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/symbols.js
@@ -0,0 +1,20 @@
+'use strict';
+
+exports.arrayAtomicsBackupSymbol = Symbol('mongoose#Array#atomicsBackup');
+exports.arrayAtomicsSymbol = Symbol('mongoose#Array#_atomics');
+exports.arrayParentSymbol = Symbol('mongoose#Array#_parent');
+exports.arrayPathSymbol = Symbol('mongoose#Array#_path');
+exports.arraySchemaSymbol = Symbol('mongoose#Array#_schema');
+exports.documentArrayParent = Symbol('mongoose#documentArrayParent');
+exports.documentIsSelected = Symbol('mongoose#Document#isSelected');
+exports.documentIsModified = Symbol('mongoose#Document#isModified');
+exports.documentModifiedPaths = Symbol('mongoose#Document#modifiedPaths');
+exports.documentSchemaSymbol = Symbol('mongoose#Document#schema');
+exports.getSymbol = Symbol('mongoose#Document#get');
+exports.modelSymbol = Symbol('mongoose#Model');
+exports.objectIdSymbol = Symbol('mongoose#ObjectId');
+exports.populateModelSymbol = Symbol('mongoose#PopulateOptions#Model');
+exports.schemaTypeSymbol = Symbol('mongoose#schemaType');
+exports.sessionNewDocuments = Symbol('mongoose#ClientSession#newDocuments');
+exports.scopeSymbol = Symbol('mongoose#Document#scope');
+exports.validatorErrorSymbol = Symbol('mongoose#validatorError');
diff --git a/backend/node_modules/mongoose/lib/helpers/timers.js b/backend/node_modules/mongoose/lib/helpers/timers.js
new file mode 100644
index 0000000..eb7e645
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/timers.js
@@ -0,0 +1,3 @@
+'use strict';
+
+exports.setTimeout = setTimeout;
diff --git a/backend/node_modules/mongoose/lib/helpers/timestamps/setDocumentTimestamps.js b/backend/node_modules/mongoose/lib/helpers/timestamps/setDocumentTimestamps.js
new file mode 100644
index 0000000..c1b6d5f
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/timestamps/setDocumentTimestamps.js
@@ -0,0 +1,26 @@
+'use strict';
+
+module.exports = function setDocumentTimestamps(doc, timestampOption, currentTime, createdAt, updatedAt) {
+  const skipUpdatedAt = timestampOption != null && timestampOption.updatedAt === false;
+  const skipCreatedAt = timestampOption != null && timestampOption.createdAt === false;
+
+  const defaultTimestamp = currentTime != null ?
+    currentTime() :
+    doc.ownerDocument().constructor.base.now();
+
+  if (!skipCreatedAt &&
+      (doc.isNew || doc.$isSubdocument) &&
+      createdAt &&
+      !doc.$__getValue(createdAt) &&
+      doc.$__isSelected(createdAt)) {
+    doc.$set(createdAt, defaultTimestamp, undefined, { overwriteImmutable: true });
+  }
+
+  if (!skipUpdatedAt && updatedAt && (doc.isNew || doc.$isModified())) {
+    let ts = defaultTimestamp;
+    if (doc.isNew && createdAt != null) {
+      ts = doc.$__getValue(createdAt);
+    }
+    doc.$set(updatedAt, ts);
+  }
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/timestamps/setupTimestamps.js b/backend/node_modules/mongoose/lib/helpers/timestamps/setupTimestamps.js
new file mode 100644
index 0000000..f6ba12b
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/timestamps/setupTimestamps.js
@@ -0,0 +1,110 @@
+'use strict';
+
+const applyTimestampsToChildren = require('../update/applyTimestampsToChildren');
+const applyTimestampsToUpdate = require('../update/applyTimestampsToUpdate');
+const get = require('../get');
+const handleTimestampOption = require('../schema/handleTimestampOption');
+const setDocumentTimestamps = require('./setDocumentTimestamps');
+const symbols = require('../../schema/symbols');
+
+const replaceOps = new Set([
+  'replaceOne',
+  'findOneAndReplace'
+]);
+
+module.exports = function setupTimestamps(schema, timestamps) {
+  const childHasTimestamp = schema.childSchemas.find(withTimestamp);
+  function withTimestamp(s) {
+    const ts = s.schema.options.timestamps;
+    return !!ts;
+  }
+  if (!timestamps && !childHasTimestamp) {
+    return;
+  }
+  const createdAt = handleTimestampOption(timestamps, 'createdAt');
+  const updatedAt = handleTimestampOption(timestamps, 'updatedAt');
+  const currentTime = timestamps != null && timestamps.hasOwnProperty('currentTime') ?
+    timestamps.currentTime :
+    null;
+  const schemaAdditions = {};
+
+  schema.$timestamps = { createdAt: createdAt, updatedAt: updatedAt };
+
+  if (createdAt && !schema.paths[createdAt]) {
+    const baseImmutableCreatedAt = schema.base != null ? schema.base.get('timestamps.createdAt.immutable') : null;
+    const immutable = baseImmutableCreatedAt != null ? baseImmutableCreatedAt : true;
+    schemaAdditions[createdAt] = { [schema.options.typeKey || 'type']: Date, immutable };
+  }
+
+  if (updatedAt && !schema.paths[updatedAt]) {
+    schemaAdditions[updatedAt] = Date;
+  }
+
+  schema.add(schemaAdditions);
+
+  schema.pre('save', function timestampsPreSave(next) {
+    const timestampOption = get(this, '$__.saveOptions.timestamps');
+    if (timestampOption === false) {
+      return next();
+    }
+
+    setDocumentTimestamps(this, timestampOption, currentTime, createdAt, updatedAt);
+
+    next();
+  });
+
+  schema.methods.initializeTimestamps = function() {
+    const ts = currentTime != null ?
+      currentTime() : this.constructor.base.now();
+
+
+    if (createdAt && !this.get(createdAt)) {
+      this.$set(createdAt, ts);
+    }
+    if (updatedAt && !this.get(updatedAt)) {
+      this.$set(updatedAt, ts);
+    }
+    if (this.$isSubdocument) {
+      return this;
+    }
+
+    const subdocs = this.$getAllSubdocs();
+    for (const subdoc of subdocs) {
+      if (subdoc.initializeTimestamps) {
+        subdoc.initializeTimestamps();
+      }
+    }
+
+    return this;
+  };
+
+  _setTimestampsOnUpdate[symbols.builtInMiddleware] = true;
+
+  const opts = { query: true, model: false };
+  schema.pre('findOneAndReplace', opts, _setTimestampsOnUpdate);
+  schema.pre('findOneAndUpdate', opts, _setTimestampsOnUpdate);
+  schema.pre('replaceOne', opts, _setTimestampsOnUpdate);
+  schema.pre('update', opts, _setTimestampsOnUpdate);
+  schema.pre('updateOne', opts, _setTimestampsOnUpdate);
+  schema.pre('updateMany', opts, _setTimestampsOnUpdate);
+
+  function _setTimestampsOnUpdate(next) {
+    const now = currentTime != null ?
+      currentTime() :
+      this.model.base.now();
+    // Replacing with null update should still trigger timestamps
+    if (replaceOps.has(this.op) && this.getUpdate() == null) {
+      this.setUpdate({});
+    }
+    applyTimestampsToUpdate(
+      now,
+      createdAt,
+      updatedAt,
+      this.getUpdate(),
+      this._mongooseOptions,
+      replaceOps.has(this.op)
+    );
+    applyTimestampsToChildren(now, this.getUpdate(), this.model.schema);
+    next();
+  }
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/topology/allServersUnknown.js b/backend/node_modules/mongoose/lib/helpers/topology/allServersUnknown.js
new file mode 100644
index 0000000..45c40ba
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/topology/allServersUnknown.js
@@ -0,0 +1,12 @@
+'use strict';
+
+const getConstructorName = require('../getConstructorName');
+
+module.exports = function allServersUnknown(topologyDescription) {
+  if (getConstructorName(topologyDescription) !== 'TopologyDescription') {
+    return false;
+  }
+
+  const servers = Array.from(topologyDescription.servers.values());
+  return servers.length > 0 && servers.every(server => server.type === 'Unknown');
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/topology/isAtlas.js b/backend/node_modules/mongoose/lib/helpers/topology/isAtlas.js
new file mode 100644
index 0000000..445a8b4
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/topology/isAtlas.js
@@ -0,0 +1,31 @@
+'use strict';
+
+const getConstructorName = require('../getConstructorName');
+
+/**
+ * @typedef { import('mongodb').TopologyDescription } TopologyDescription
+ */
+
+/**
+ * Checks if topologyDescription contains servers connected to an atlas instance
+ *
+ * @param  {TopologyDescription} topologyDescription
+ * @returns {boolean}
+ */
+module.exports = function isAtlas(topologyDescription) {
+  if (getConstructorName(topologyDescription) !== 'TopologyDescription') {
+    return false;
+  }
+
+  if (topologyDescription.servers.size === 0) {
+    return false;
+  }
+
+  for (const server of topologyDescription.servers.values()) {
+    if (server.host.endsWith('.mongodb.net') === false || server.port !== 27017) {
+      return false;
+    }
+  }
+
+  return true;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/topology/isSSLError.js b/backend/node_modules/mongoose/lib/helpers/topology/isSSLError.js
new file mode 100644
index 0000000..17c1c50
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/topology/isSSLError.js
@@ -0,0 +1,16 @@
+'use strict';
+
+const getConstructorName = require('../getConstructorName');
+
+const nonSSLMessage = 'Client network socket disconnected before secure TLS ' +
+  'connection was established';
+
+module.exports = function isSSLError(topologyDescription) {
+  if (getConstructorName(topologyDescription) !== 'TopologyDescription') {
+    return false;
+  }
+
+  const descriptions = Array.from(topologyDescription.servers.values());
+  return descriptions.length > 0 &&
+    descriptions.every(descr => descr.error && descr.error.message.indexOf(nonSSLMessage) !== -1);
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/update/applyTimestampsToChildren.js b/backend/node_modules/mongoose/lib/helpers/update/applyTimestampsToChildren.js
new file mode 100644
index 0000000..5b8e7de
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/update/applyTimestampsToChildren.js
@@ -0,0 +1,193 @@
+'use strict';
+
+const cleanPositionalOperators = require('../schema/cleanPositionalOperators');
+const handleTimestampOption = require('../schema/handleTimestampOption');
+
+module.exports = applyTimestampsToChildren;
+
+/*!
+ * ignore
+ */
+
+function applyTimestampsToChildren(now, update, schema) {
+  if (update == null) {
+    return;
+  }
+
+  const keys = Object.keys(update);
+  const hasDollarKey = keys.some(key => key[0] === '$');
+
+  if (hasDollarKey) {
+    if (update.$push) {
+      _applyTimestampToUpdateOperator(update.$push);
+    }
+    if (update.$addToSet) {
+      _applyTimestampToUpdateOperator(update.$addToSet);
+    }
+    if (update.$set != null) {
+      const keys = Object.keys(update.$set);
+      for (const key of keys) {
+        applyTimestampsToUpdateKey(schema, key, update.$set, now);
+      }
+    }
+    if (update.$setOnInsert != null) {
+      const keys = Object.keys(update.$setOnInsert);
+      for (const key of keys) {
+        applyTimestampsToUpdateKey(schema, key, update.$setOnInsert, now);
+      }
+    }
+  }
+
+  const updateKeys = Object.keys(update).filter(key => key[0] !== '$');
+  for (const key of updateKeys) {
+    applyTimestampsToUpdateKey(schema, key, update, now);
+  }
+
+  function _applyTimestampToUpdateOperator(op) {
+    for (const key of Object.keys(op)) {
+      const $path = schema.path(key.replace(/\.\$\./i, '.').replace(/.\$$/, ''));
+      if (op[key] &&
+          $path &&
+          $path.$isMongooseDocumentArray &&
+          $path.schema.options.timestamps) {
+        const timestamps = $path.schema.options.timestamps;
+        const createdAt = handleTimestampOption(timestamps, 'createdAt');
+        const updatedAt = handleTimestampOption(timestamps, 'updatedAt');
+        if (op[key].$each) {
+          op[key].$each.forEach(function(subdoc) {
+            if (updatedAt != null) {
+              subdoc[updatedAt] = now;
+            }
+            if (createdAt != null) {
+              subdoc[createdAt] = now;
+            }
+
+            applyTimestampsToChildren(now, subdoc, $path.schema);
+          });
+        } else {
+          if (updatedAt != null) {
+            op[key][updatedAt] = now;
+          }
+          if (createdAt != null) {
+            op[key][createdAt] = now;
+          }
+
+          applyTimestampsToChildren(now, op[key], $path.schema);
+        }
+      }
+    }
+  }
+}
+
+function applyTimestampsToDocumentArray(arr, schematype, now) {
+  const timestamps = schematype.schema.options.timestamps;
+
+  const len = arr.length;
+
+  if (!timestamps) {
+    for (let i = 0; i < len; ++i) {
+      applyTimestampsToChildren(now, arr[i], schematype.schema);
+    }
+    return;
+  }
+
+  const createdAt = handleTimestampOption(timestamps, 'createdAt');
+  const updatedAt = handleTimestampOption(timestamps, 'updatedAt');
+  for (let i = 0; i < len; ++i) {
+    if (updatedAt != null) {
+      arr[i][updatedAt] = now;
+    }
+    if (createdAt != null) {
+      arr[i][createdAt] = now;
+    }
+
+    applyTimestampsToChildren(now, arr[i], schematype.schema);
+  }
+}
+
+function applyTimestampsToSingleNested(subdoc, schematype, now) {
+  const timestamps = schematype.schema.options.timestamps;
+  if (!timestamps) {
+    applyTimestampsToChildren(now, subdoc, schematype.schema);
+    return;
+  }
+
+  const createdAt = handleTimestampOption(timestamps, 'createdAt');
+  const updatedAt = handleTimestampOption(timestamps, 'updatedAt');
+  if (updatedAt != null) {
+    subdoc[updatedAt] = now;
+  }
+  if (createdAt != null) {
+    subdoc[createdAt] = now;
+  }
+
+  applyTimestampsToChildren(now, subdoc, schematype.schema);
+}
+
+function applyTimestampsToUpdateKey(schema, key, update, now) {
+  // Replace positional operator `$` and array filters `$[]` and `$[.*]`
+  const keyToSearch = cleanPositionalOperators(key);
+  const path = schema.path(keyToSearch);
+  if (!path) {
+    return;
+  }
+
+  const parentSchemaTypes = [];
+  const pieces = keyToSearch.split('.');
+  for (let i = pieces.length - 1; i > 0; --i) {
+    const s = schema.path(pieces.slice(0, i).join('.'));
+    if (s != null &&
+      (s.$isMongooseDocumentArray || s.$isSingleNested)) {
+      parentSchemaTypes.push({ parentPath: key.split('.').slice(0, i).join('.'), parentSchemaType: s });
+    }
+  }
+
+  if (Array.isArray(update[key]) && path.$isMongooseDocumentArray) {
+    applyTimestampsToDocumentArray(update[key], path, now);
+  } else if (update[key] && path.$isSingleNested) {
+    applyTimestampsToSingleNested(update[key], path, now);
+  } else if (parentSchemaTypes.length > 0) {
+    for (const item of parentSchemaTypes) {
+      const parentPath = item.parentPath;
+      const parentSchemaType = item.parentSchemaType;
+      const timestamps = parentSchemaType.schema.options.timestamps;
+      const updatedAt = handleTimestampOption(timestamps, 'updatedAt');
+
+      if (!timestamps || updatedAt == null) {
+        continue;
+      }
+
+      if (parentSchemaType.$isSingleNested) {
+        // Single nested is easy
+        update[parentPath + '.' + updatedAt] = now;
+      } else if (parentSchemaType.$isMongooseDocumentArray) {
+        let childPath = key.substring(parentPath.length + 1);
+
+        if (/^\d+$/.test(childPath)) {
+          update[parentPath + '.' + childPath][updatedAt] = now;
+          continue;
+        }
+
+        const firstDot = childPath.indexOf('.');
+        childPath = firstDot !== -1 ? childPath.substring(0, firstDot) : childPath;
+
+        update[parentPath + '.' + childPath + '.' + updatedAt] = now;
+      }
+    }
+  } else if (path.schema != null && path.schema != schema && update[key]) {
+    const timestamps = path.schema.options.timestamps;
+    const createdAt = handleTimestampOption(timestamps, 'createdAt');
+    const updatedAt = handleTimestampOption(timestamps, 'updatedAt');
+
+    if (!timestamps) {
+      return;
+    }
+
+    if (updatedAt != null) {
+      update[key][updatedAt] = now;
+    }
+    if (createdAt != null) {
+      update[key][createdAt] = now;
+    }
+  }
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/update/applyTimestampsToUpdate.js b/backend/node_modules/mongoose/lib/helpers/update/applyTimestampsToUpdate.js
new file mode 100644
index 0000000..e8d3217
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/update/applyTimestampsToUpdate.js
@@ -0,0 +1,117 @@
+'use strict';
+
+/*!
+ * ignore
+ */
+
+const get = require('../get');
+
+module.exports = applyTimestampsToUpdate;
+
+/*!
+ * ignore
+ */
+
+function applyTimestampsToUpdate(now, createdAt, updatedAt, currentUpdate, options, isReplace) {
+  const updates = currentUpdate;
+  let _updates = updates;
+  const timestamps = get(options, 'timestamps', true);
+
+  // Support skipping timestamps at the query level, see gh-6980
+  if (!timestamps || updates == null) {
+    return currentUpdate;
+  }
+
+  const skipCreatedAt = timestamps != null && timestamps.createdAt === false;
+  const skipUpdatedAt = timestamps != null && timestamps.updatedAt === false;
+
+  if (isReplace) {
+    if (currentUpdate && currentUpdate.$set) {
+      currentUpdate = currentUpdate.$set;
+      updates.$set = {};
+      _updates = updates.$set;
+    }
+    if (!skipUpdatedAt && updatedAt && !currentUpdate[updatedAt]) {
+      _updates[updatedAt] = now;
+    }
+    if (!skipCreatedAt && createdAt && !currentUpdate[createdAt]) {
+      _updates[createdAt] = now;
+    }
+    return updates;
+  }
+  currentUpdate = currentUpdate || {};
+
+  if (Array.isArray(updates)) {
+    // Update with aggregation pipeline
+    if (updatedAt == null) {
+      return updates;
+    }
+    updates.push({ $set: { [updatedAt]: now } });
+    return updates;
+  }
+  updates.$set = updates.$set || {};
+  if (!skipUpdatedAt && updatedAt &&
+      (!currentUpdate.$currentDate || !currentUpdate.$currentDate[updatedAt])) {
+    let timestampSet = false;
+    if (updatedAt.indexOf('.') !== -1) {
+      const pieces = updatedAt.split('.');
+      for (let i = 1; i < pieces.length; ++i) {
+        const remnant = pieces.slice(-i).join('.');
+        const start = pieces.slice(0, -i).join('.');
+        if (currentUpdate[start] != null) {
+          currentUpdate[start][remnant] = now;
+          timestampSet = true;
+          break;
+        } else if (currentUpdate.$set && currentUpdate.$set[start]) {
+          currentUpdate.$set[start][remnant] = now;
+          timestampSet = true;
+          break;
+        }
+      }
+    }
+
+    if (!timestampSet) {
+      updates.$set[updatedAt] = now;
+    }
+
+    if (updates.hasOwnProperty(updatedAt)) {
+      delete updates[updatedAt];
+    }
+  }
+
+  if (!skipCreatedAt && createdAt) {
+    if (currentUpdate[createdAt]) {
+      delete currentUpdate[createdAt];
+    }
+    if (currentUpdate.$set && currentUpdate.$set[createdAt]) {
+      delete currentUpdate.$set[createdAt];
+    }
+    let timestampSet = false;
+    if (createdAt.indexOf('.') !== -1) {
+      const pieces = createdAt.split('.');
+      for (let i = 1; i < pieces.length; ++i) {
+        const remnant = pieces.slice(-i).join('.');
+        const start = pieces.slice(0, -i).join('.');
+        if (currentUpdate[start] != null) {
+          currentUpdate[start][remnant] = now;
+          timestampSet = true;
+          break;
+        } else if (currentUpdate.$set && currentUpdate.$set[start]) {
+          currentUpdate.$set[start][remnant] = now;
+          timestampSet = true;
+          break;
+        }
+      }
+    }
+
+    if (!timestampSet) {
+      updates.$setOnInsert = updates.$setOnInsert || {};
+      updates.$setOnInsert[createdAt] = now;
+    }
+  }
+
+  if (Object.keys(updates.$set).length === 0) {
+    delete updates.$set;
+  }
+  return updates;
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/update/castArrayFilters.js b/backend/node_modules/mongoose/lib/helpers/update/castArrayFilters.js
new file mode 100644
index 0000000..65af785
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/update/castArrayFilters.js
@@ -0,0 +1,109 @@
+'use strict';
+
+const castFilterPath = require('../query/castFilterPath');
+const cleanPositionalOperators = require('../schema/cleanPositionalOperators');
+const getPath = require('../schema/getPath');
+const updatedPathsByArrayFilter = require('./updatedPathsByArrayFilter');
+
+module.exports = function castArrayFilters(query) {
+  const arrayFilters = query.options.arrayFilters;
+  const update = query.getUpdate();
+  const schema = query.schema;
+  const updatedPathsByFilter = updatedPathsByArrayFilter(update);
+
+  let strictQuery = schema.options.strict;
+  if (query._mongooseOptions.strict != null) {
+    strictQuery = query._mongooseOptions.strict;
+  }
+  if (query.model && query.model.base.options.strictQuery != null) {
+    strictQuery = query.model.base.options.strictQuery;
+  }
+  if (schema._userProvidedOptions.strictQuery != null) {
+    strictQuery = schema._userProvidedOptions.strictQuery;
+  }
+  if (query._mongooseOptions.strictQuery != null) {
+    strictQuery = query._mongooseOptions.strictQuery;
+  }
+
+  _castArrayFilters(arrayFilters, schema, strictQuery, updatedPathsByFilter, query);
+};
+
+function _castArrayFilters(arrayFilters, schema, strictQuery, updatedPathsByFilter, query) {
+  if (!Array.isArray(arrayFilters)) {
+    return;
+  }
+
+  for (const filter of arrayFilters) {
+    if (filter == null) {
+      throw new Error(`Got null array filter in ${arrayFilters}`);
+    }
+    const keys = Object.keys(filter).filter(key => filter[key] != null);
+    if (keys.length === 0) {
+      continue;
+    }
+
+    const firstKey = keys[0];
+    if (firstKey === '$and' || firstKey === '$or') {
+      for (const key of keys) {
+        _castArrayFilters(filter[key], schema, strictQuery, updatedPathsByFilter, query);
+      }
+      continue;
+    }
+    const dot = firstKey.indexOf('.');
+    const filterWildcardPath = dot === -1 ? firstKey : firstKey.substring(0, dot);
+    if (updatedPathsByFilter[filterWildcardPath] == null) {
+      continue;
+    }
+    const baseFilterPath = cleanPositionalOperators(
+      updatedPathsByFilter[filterWildcardPath]
+    );
+
+    const baseSchematype = getPath(schema, baseFilterPath);
+    let filterBaseSchema = baseSchematype != null ? baseSchematype.schema : null;
+    if (filterBaseSchema != null &&
+        filterBaseSchema.discriminators != null &&
+        filter[filterWildcardPath + '.' + filterBaseSchema.options.discriminatorKey]) {
+      filterBaseSchema = filterBaseSchema.discriminators[filter[filterWildcardPath + '.' + filterBaseSchema.options.discriminatorKey]] || filterBaseSchema;
+    }
+
+    for (const key of keys) {
+      if (updatedPathsByFilter[key] === null) {
+        continue;
+      }
+      if (Object.keys(updatedPathsByFilter).length === 0) {
+        continue;
+      }
+      const dot = key.indexOf('.');
+
+      let filterPathRelativeToBase = dot === -1 ? null : key.substring(dot);
+      let schematype;
+      if (filterPathRelativeToBase == null || filterBaseSchema == null) {
+        schematype = baseSchematype;
+      } else {
+        // If there are multiple array filters in the path being updated, make sure
+        // to replace them so we can get the schema path.
+        filterPathRelativeToBase = cleanPositionalOperators(filterPathRelativeToBase);
+        schematype = getPath(filterBaseSchema, filterPathRelativeToBase);
+      }
+
+      if (schematype == null) {
+        if (!strictQuery) {
+          return;
+        }
+        const filterPath = filterPathRelativeToBase == null ?
+          baseFilterPath + '.0' :
+          baseFilterPath + '.0' + filterPathRelativeToBase;
+        // For now, treat `strictQuery = true` and `strictQuery = 'throw'` as
+        // equivalent for casting array filters. `strictQuery = true` doesn't
+        // quite work in this context because we never want to silently strip out
+        // array filters, even if the path isn't in the schema.
+        throw new Error(`Could not find path "${filterPath}" in schema`);
+      }
+      if (typeof filter[key] === 'object') {
+        filter[key] = castFilterPath(query, schematype, filter[key]);
+      } else {
+        filter[key] = schematype.castForQuery(null, filter[key]);
+      }
+    }
+  }
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/update/decorateUpdateWithVersionKey.js b/backend/node_modules/mongoose/lib/helpers/update/decorateUpdateWithVersionKey.js
new file mode 100644
index 0000000..1617298
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/update/decorateUpdateWithVersionKey.js
@@ -0,0 +1,26 @@
+'use strict';
+
+const modifiedPaths = require('./modifiedPaths');
+
+/**
+ * Decorate the update with a version key, if necessary
+ * @api private
+ */
+
+module.exports = function decorateUpdateWithVersionKey(update, options, versionKey) {
+  if (!versionKey || !(options && options.upsert || false)) {
+    return;
+  }
+
+  const updatedPaths = modifiedPaths(update);
+  if (!updatedPaths[versionKey]) {
+    if (options.overwrite) {
+      update[versionKey] = 0;
+    } else {
+      if (!update.$setOnInsert) {
+        update.$setOnInsert = {};
+      }
+      update.$setOnInsert[versionKey] = 0;
+    }
+  }
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/update/modifiedPaths.js b/backend/node_modules/mongoose/lib/helpers/update/modifiedPaths.js
new file mode 100644
index 0000000..9cb567d
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/update/modifiedPaths.js
@@ -0,0 +1,33 @@
+'use strict';
+
+const _modifiedPaths = require('../common').modifiedPaths;
+
+/**
+ * Given an update document with potential update operators (`$set`, etc.)
+ * returns an object whose keys are the directly modified paths.
+ *
+ * If there are any top-level keys that don't start with `$`, we assume those
+ * will get wrapped in a `$set`. The Mongoose Query is responsible for wrapping
+ * top-level keys in `$set`.
+ *
+ * @param {Object} update
+ * @return {Object} modified
+ */
+
+module.exports = function modifiedPaths(update) {
+  const keys = Object.keys(update);
+  const res = {};
+
+  const withoutDollarKeys = {};
+  for (const key of keys) {
+    if (key.startsWith('$')) {
+      _modifiedPaths(update[key], '', res);
+      continue;
+    }
+    withoutDollarKeys[key] = update[key];
+  }
+
+  _modifiedPaths(withoutDollarKeys, '', res);
+
+  return res;
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/update/moveImmutableProperties.js b/backend/node_modules/mongoose/lib/helpers/update/moveImmutableProperties.js
new file mode 100644
index 0000000..81a62a8
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/update/moveImmutableProperties.js
@@ -0,0 +1,53 @@
+'use strict';
+
+const get = require('../get');
+
+/**
+ * Given an update, move all $set on immutable properties to $setOnInsert.
+ * This should only be called for upserts, because $setOnInsert bypasses the
+ * strictness check for immutable properties.
+ */
+
+module.exports = function moveImmutableProperties(schema, update, ctx) {
+  if (update == null) {
+    return;
+  }
+
+  const keys = Object.keys(update);
+  for (const key of keys) {
+    const isDollarKey = key.startsWith('$');
+
+    if (key === '$set') {
+      const updatedPaths = Object.keys(update[key]);
+      for (const path of updatedPaths) {
+        _walkUpdatePath(schema, update[key], path, update, ctx);
+      }
+    } else if (!isDollarKey) {
+      _walkUpdatePath(schema, update, key, update, ctx);
+    }
+
+  }
+};
+
+function _walkUpdatePath(schema, op, path, update, ctx) {
+  const schematype = schema.path(path);
+  if (schematype == null) {
+    return;
+  }
+
+  let immutable = get(schematype, 'options.immutable', null);
+  if (immutable == null) {
+    return;
+  }
+  if (typeof immutable === 'function') {
+    immutable = immutable.call(ctx, ctx);
+  }
+
+  if (!immutable) {
+    return;
+  }
+
+  update.$setOnInsert = update.$setOnInsert || {};
+  update.$setOnInsert[path] = op[path];
+  delete op[path];
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/update/removeUnusedArrayFilters.js b/backend/node_modules/mongoose/lib/helpers/update/removeUnusedArrayFilters.js
new file mode 100644
index 0000000..22fa248
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/update/removeUnusedArrayFilters.js
@@ -0,0 +1,32 @@
+'use strict';
+
+/**
+ * MongoDB throws an error if there's unused array filters. That is, if `options.arrayFilters` defines
+ * a filter, but none of the `update` keys use it. This should be enough to filter out all unused array
+ * filters.
+ */
+
+module.exports = function removeUnusedArrayFilters(update, arrayFilters) {
+  const updateKeys = Object.keys(update).
+    map(key => Object.keys(update[key])).
+    reduce((cur, arr) => cur.concat(arr), []);
+  return arrayFilters.filter(obj => {
+    return _checkSingleFilterKey(obj, updateKeys);
+  });
+};
+
+function _checkSingleFilterKey(arrayFilter, updateKeys) {
+  const firstKey = Object.keys(arrayFilter)[0];
+
+  if (firstKey === '$and' || firstKey === '$or') {
+    if (!Array.isArray(arrayFilter[firstKey])) {
+      return false;
+    }
+    return arrayFilter[firstKey].find(filter => _checkSingleFilterKey(filter, updateKeys)) != null;
+  }
+
+  const firstDot = firstKey.indexOf('.');
+  const arrayFilterKey = firstDot === -1 ? firstKey : firstKey.slice(0, firstDot);
+
+  return updateKeys.find(key => key.includes('$[' + arrayFilterKey + ']')) != null;
+}
diff --git a/backend/node_modules/mongoose/lib/helpers/update/updatedPathsByArrayFilter.js b/backend/node_modules/mongoose/lib/helpers/update/updatedPathsByArrayFilter.js
new file mode 100644
index 0000000..fe7d3b6
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/update/updatedPathsByArrayFilter.js
@@ -0,0 +1,27 @@
+'use strict';
+
+const modifiedPaths = require('./modifiedPaths');
+
+module.exports = function updatedPathsByArrayFilter(update) {
+  if (update == null) {
+    return {};
+  }
+  const updatedPaths = modifiedPaths(update);
+
+  return Object.keys(updatedPaths).reduce((cur, path) => {
+    const matches = path.match(/\$\[[^\]]+\]/g);
+    if (matches == null) {
+      return cur;
+    }
+    for (const match of matches) {
+      const firstMatch = path.indexOf(match);
+      if (firstMatch !== path.lastIndexOf(match)) {
+        throw new Error(`Path '${path}' contains the same array filter multiple times`);
+      }
+      cur[match.substring(2, match.length - 1)] = path.
+        substring(0, firstMatch - 1).
+        replace(/\$\[[^\]]+\]/g, '0');
+    }
+    return cur;
+  }, {});
+};
diff --git a/backend/node_modules/mongoose/lib/helpers/updateValidators.js b/backend/node_modules/mongoose/lib/helpers/updateValidators.js
new file mode 100644
index 0000000..176eff2
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/helpers/updateValidators.js
@@ -0,0 +1,249 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const ValidationError = require('../error/validation');
+const cleanPositionalOperators = require('./schema/cleanPositionalOperators');
+const flatten = require('./common').flatten;
+const modifiedPaths = require('./common').modifiedPaths;
+
+/**
+ * Applies validators and defaults to update and findOneAndUpdate operations,
+ * specifically passing a null doc as `this` to validators and defaults
+ *
+ * @param {Query} query
+ * @param {Schema} schema
+ * @param {Object} castedDoc
+ * @param {Object} options
+ * @method runValidatorsOnUpdate
+ * @api private
+ */
+
+module.exports = function(query, schema, castedDoc, options, callback) {
+  const keys = Object.keys(castedDoc || {});
+  let updatedKeys = {};
+  let updatedValues = {};
+  const isPull = {};
+  const arrayAtomicUpdates = {};
+  const numKeys = keys.length;
+  let hasDollarUpdate = false;
+  const modified = {};
+  let currentUpdate;
+  let key;
+  let i;
+
+  for (i = 0; i < numKeys; ++i) {
+    if (keys[i].startsWith('$')) {
+      hasDollarUpdate = true;
+      if (keys[i] === '$push' || keys[i] === '$addToSet') {
+        const _keys = Object.keys(castedDoc[keys[i]]);
+        for (let ii = 0; ii < _keys.length; ++ii) {
+          currentUpdate = castedDoc[keys[i]][_keys[ii]];
+          if (currentUpdate && currentUpdate.$each) {
+            arrayAtomicUpdates[_keys[ii]] = (arrayAtomicUpdates[_keys[ii]] || []).
+              concat(currentUpdate.$each);
+          } else {
+            arrayAtomicUpdates[_keys[ii]] = (arrayAtomicUpdates[_keys[ii]] || []).
+              concat([currentUpdate]);
+          }
+        }
+        continue;
+      }
+      modifiedPaths(castedDoc[keys[i]], '', modified);
+      const flat = flatten(castedDoc[keys[i]], null, null, schema);
+      const paths = Object.keys(flat);
+      const numPaths = paths.length;
+      for (let j = 0; j < numPaths; ++j) {
+        const updatedPath = cleanPositionalOperators(paths[j]);
+        key = keys[i];
+        // With `$pull` we might flatten `$in`. Skip stuff nested under `$in`
+        // for the rest of the logic, it will get handled later.
+        if (updatedPath.includes('$')) {
+          continue;
+        }
+        if (key === '$set' || key === '$setOnInsert' ||
+            key === '$pull' || key === '$pullAll') {
+          updatedValues[updatedPath] = flat[paths[j]];
+          isPull[updatedPath] = key === '$pull' || key === '$pullAll';
+        } else if (key === '$unset') {
+          updatedValues[updatedPath] = undefined;
+        }
+        updatedKeys[updatedPath] = true;
+      }
+    }
+  }
+
+  if (!hasDollarUpdate) {
+    modifiedPaths(castedDoc, '', modified);
+    updatedValues = flatten(castedDoc, null, null, schema);
+    updatedKeys = Object.keys(updatedValues);
+  }
+
+  const updates = Object.keys(updatedValues);
+  const numUpdates = updates.length;
+  const validatorsToExecute = [];
+  const validationErrors = [];
+
+  const alreadyValidated = [];
+
+  const context = query;
+  function iter(i, v) {
+    const schemaPath = schema._getSchema(updates[i]);
+    if (schemaPath == null) {
+      return;
+    }
+    if (schemaPath.instance === 'Mixed' && schemaPath.path !== updates[i]) {
+      return;
+    }
+
+    if (v && Array.isArray(v.$in)) {
+      v.$in.forEach((v, i) => {
+        validatorsToExecute.push(function(callback) {
+          schemaPath.doValidate(
+            v,
+            function(err) {
+              if (err) {
+                err.path = updates[i] + '.$in.' + i;
+                validationErrors.push(err);
+              }
+              callback(null);
+            },
+            context,
+            { updateValidator: true });
+        });
+      });
+    } else {
+      if (isPull[updates[i]] &&
+          schemaPath.$isMongooseArray) {
+        return;
+      }
+
+      if (schemaPath.$isMongooseDocumentArrayElement && v != null && v.$__ != null) {
+        alreadyValidated.push(updates[i]);
+        validatorsToExecute.push(function(callback) {
+          schemaPath.doValidate(v, function(err) {
+            if (err) {
+              if (err.errors) {
+                for (const key of Object.keys(err.errors)) {
+                  const _err = err.errors[key];
+                  _err.path = updates[i] + '.' + key;
+                  validationErrors.push(_err);
+                }
+              } else {
+                err.path = updates[i];
+                validationErrors.push(err);
+              }
+            }
+
+            return callback(null);
+          }, context, { updateValidator: true });
+        });
+      } else {
+        validatorsToExecute.push(function(callback) {
+          for (const path of alreadyValidated) {
+            if (updates[i].startsWith(path + '.')) {
+              return callback(null);
+            }
+          }
+
+          schemaPath.doValidate(v, function(err) {
+            if (schemaPath.schema != null &&
+                schemaPath.schema.options.storeSubdocValidationError === false &&
+                err instanceof ValidationError) {
+              return callback(null);
+            }
+
+            if (err) {
+              err.path = updates[i];
+              validationErrors.push(err);
+            }
+            callback(null);
+          }, context, { updateValidator: true });
+        });
+      }
+    }
+  }
+  for (i = 0; i < numUpdates; ++i) {
+    iter(i, updatedValues[updates[i]]);
+  }
+
+  const arrayUpdates = Object.keys(arrayAtomicUpdates);
+  for (const arrayUpdate of arrayUpdates) {
+    let schemaPath = schema._getSchema(arrayUpdate);
+    if (schemaPath && schemaPath.$isMongooseDocumentArray) {
+      validatorsToExecute.push(function(callback) {
+        schemaPath.doValidate(
+          arrayAtomicUpdates[arrayUpdate],
+          getValidationCallback(arrayUpdate, validationErrors, callback),
+          options && options.context === 'query' ? query : null);
+      });
+    } else {
+      schemaPath = schema._getSchema(arrayUpdate + '.0');
+      for (const atomicUpdate of arrayAtomicUpdates[arrayUpdate]) {
+        validatorsToExecute.push(function(callback) {
+          schemaPath.doValidate(
+            atomicUpdate,
+            getValidationCallback(arrayUpdate, validationErrors, callback),
+            options && options.context === 'query' ? query : null,
+            { updateValidator: true });
+        });
+      }
+    }
+  }
+
+  if (callback != null) {
+    let numValidators = validatorsToExecute.length;
+    if (numValidators === 0) {
+      return _done(callback);
+    }
+    for (const validator of validatorsToExecute) {
+      validator(function() {
+        if (--numValidators <= 0) {
+          _done(callback);
+        }
+      });
+    }
+
+    return;
+  }
+
+  return function(callback) {
+    let numValidators = validatorsToExecute.length;
+    if (numValidators === 0) {
+      return _done(callback);
+    }
+    for (const validator of validatorsToExecute) {
+      validator(function() {
+        if (--numValidators <= 0) {
+          _done(callback);
+        }
+      });
+    }
+  };
+
+  function _done(callback) {
+    if (validationErrors.length) {
+      const err = new ValidationError(null);
+
+      for (const validationError of validationErrors) {
+        err.addError(validationError.path, validationError);
+      }
+
+      return callback(err);
+    }
+    callback(null);
+  }
+
+  function getValidationCallback(arrayUpdate, validationErrors, callback) {
+    return function(err) {
+      if (err) {
+        err.path = arrayUpdate;
+        validationErrors.push(err);
+      }
+      callback(null);
+    };
+  }
+};
+
diff --git a/backend/node_modules/mongoose/lib/index.js b/backend/node_modules/mongoose/lib/index.js
new file mode 100644
index 0000000..67534e9
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/index.js
@@ -0,0 +1,17 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const mongodbDriver = require('./drivers/node-mongodb-native');
+
+require('./driver').set(mongodbDriver);
+
+const mongoose = require('./mongoose');
+
+mongoose.setDriver(mongodbDriver);
+
+mongoose.Mongoose.prototype.mongo = require('mongodb');
+
+module.exports = mongoose;
diff --git a/backend/node_modules/mongoose/lib/internal.js b/backend/node_modules/mongoose/lib/internal.js
new file mode 100644
index 0000000..8de1b27
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/internal.js
@@ -0,0 +1,46 @@
+/*!
+ * Dependencies
+ */
+
+'use strict';
+
+const StateMachine = require('./stateMachine');
+const ActiveRoster = StateMachine.ctor('require', 'modify', 'init', 'default', 'ignore');
+
+module.exports = exports = InternalCache;
+
+function InternalCache() {
+  this.activePaths = new ActiveRoster();
+}
+
+InternalCache.prototype.strictMode = true;
+
+InternalCache.prototype.fullPath = undefined;
+InternalCache.prototype.selected = undefined;
+InternalCache.prototype.shardval = undefined;
+InternalCache.prototype.saveError = undefined;
+InternalCache.prototype.validationError = undefined;
+InternalCache.prototype.adhocPaths = undefined;
+InternalCache.prototype.removing = undefined;
+InternalCache.prototype.inserting = undefined;
+InternalCache.prototype.saving = undefined;
+InternalCache.prototype.version = undefined;
+InternalCache.prototype._id = undefined;
+InternalCache.prototype.ownerDocument = undefined;
+InternalCache.prototype.populate = undefined; // what we want to populate in this doc
+InternalCache.prototype.populated = undefined;// the _ids that have been populated
+InternalCache.prototype.primitiveAtomics = undefined;
+
+/**
+ * If `false`, this document was not the result of population.
+ * If `true`, this document is a populated doc underneath another doc
+ * If an object, this document is a populated doc and the `value` property of the
+ * object contains the original depopulated value.
+ */
+InternalCache.prototype.wasPopulated = false;
+
+InternalCache.prototype.scope = undefined;
+
+InternalCache.prototype.session = null;
+InternalCache.prototype.pathsToScopes = null;
+InternalCache.prototype.cachedRequired = null;
diff --git a/backend/node_modules/mongoose/lib/model.js b/backend/node_modules/mongoose/lib/model.js
new file mode 100644
index 0000000..8d38d9e
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/model.js
@@ -0,0 +1,4965 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const Aggregate = require('./aggregate');
+const ChangeStream = require('./cursor/changeStream');
+const Document = require('./document');
+const DocumentNotFoundError = require('./error/notFound');
+const EventEmitter = require('events').EventEmitter;
+const Kareem = require('kareem');
+const { MongoBulkWriteError } = require('mongodb');
+const MongooseBulkWriteError = require('./error/bulkWriteError');
+const MongooseError = require('./error/index');
+const ObjectParameterError = require('./error/objectParameter');
+const OverwriteModelError = require('./error/overwriteModel');
+const Query = require('./query');
+const SaveOptions = require('./options/saveOptions');
+const Schema = require('./schema');
+const ValidationError = require('./error/validation');
+const VersionError = require('./error/version');
+const ParallelSaveError = require('./error/parallelSave');
+const applyDefaultsHelper = require('./helpers/document/applyDefaults');
+const applyDefaultsToPOJO = require('./helpers/model/applyDefaultsToPOJO');
+const applyEmbeddedDiscriminators = require('./helpers/discriminator/applyEmbeddedDiscriminators');
+const applyHooks = require('./helpers/model/applyHooks');
+const applyMethods = require('./helpers/model/applyMethods');
+const applyProjection = require('./helpers/projection/applyProjection');
+const applyReadConcern = require('./helpers/schema/applyReadConcern');
+const applySchemaCollation = require('./helpers/indexes/applySchemaCollation');
+const applyStaticHooks = require('./helpers/model/applyStaticHooks');
+const applyStatics = require('./helpers/model/applyStatics');
+const applyTimestampsHelper = require('./helpers/document/applyTimestamps');
+const applyWriteConcern = require('./helpers/schema/applyWriteConcern');
+const applyVirtualsHelper = require('./helpers/document/applyVirtuals');
+const assignVals = require('./helpers/populate/assignVals');
+const castBulkWrite = require('./helpers/model/castBulkWrite');
+const clone = require('./helpers/clone');
+const createPopulateQueryFilter = require('./helpers/populate/createPopulateQueryFilter');
+const decorateUpdateWithVersionKey = require('./helpers/update/decorateUpdateWithVersionKey');
+const getDefaultBulkwriteResult = require('./helpers/getDefaultBulkwriteResult');
+const getSchemaDiscriminatorByValue = require('./helpers/discriminator/getSchemaDiscriminatorByValue');
+const discriminator = require('./helpers/model/discriminator');
+const each = require('./helpers/each');
+const get = require('./helpers/get');
+const getConstructorName = require('./helpers/getConstructorName');
+const getDiscriminatorByValue = require('./helpers/discriminator/getDiscriminatorByValue');
+const getModelsMapForPopulate = require('./helpers/populate/getModelsMapForPopulate');
+const immediate = require('./helpers/immediate');
+const internalToObjectOptions = require('./options').internalToObjectOptions;
+const isDefaultIdIndex = require('./helpers/indexes/isDefaultIdIndex');
+const isIndexEqual = require('./helpers/indexes/isIndexEqual');
+const isTimeseriesIndex = require('./helpers/indexes/isTimeseriesIndex');
+const {
+  getRelatedDBIndexes,
+  getRelatedSchemaIndexes
+} = require('./helpers/indexes/getRelatedIndexes');
+const decorateDiscriminatorIndexOptions = require('./helpers/indexes/decorateDiscriminatorIndexOptions');
+const isPathSelectedInclusive = require('./helpers/projection/isPathSelectedInclusive');
+const leanPopulateMap = require('./helpers/populate/leanPopulateMap');
+const parallelLimit = require('./helpers/parallelLimit');
+const prepareDiscriminatorPipeline = require('./helpers/aggregate/prepareDiscriminatorPipeline');
+const pushNestedArrayPaths = require('./helpers/model/pushNestedArrayPaths');
+const removeDeselectedForeignField = require('./helpers/populate/removeDeselectedForeignField');
+const setDottedPath = require('./helpers/path/setDottedPath');
+const STATES = require('./connectionState');
+const util = require('util');
+const utils = require('./utils');
+const minimize = require('./helpers/minimize');
+const MongooseBulkSaveIncompleteError = require('./error/bulkSaveIncompleteError');
+const ObjectExpectedError = require('./error/objectExpected');
+
+const modelCollectionSymbol = Symbol('mongoose#Model#collection');
+const modelDbSymbol = Symbol('mongoose#Model#db');
+const modelSymbol = require('./helpers/symbols').modelSymbol;
+const subclassedSymbol = Symbol('mongoose#Model#subclassed');
+
+const { VERSION_INC, VERSION_WHERE, VERSION_ALL } = Document;
+
+const saveToObjectOptions = Object.assign({}, internalToObjectOptions, {
+  bson: true
+});
+
+/**
+ * A Model is a class that's your primary tool for interacting with MongoDB.
+ * An instance of a Model is called a [Document](https://mongoosejs.com/docs/api/document.html#Document).
+ *
+ * In Mongoose, the term "Model" refers to subclasses of the `mongoose.Model`
+ * class. You should not use the `mongoose.Model` class directly. The
+ * [`mongoose.model()`](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.model()) and
+ * [`connection.model()`](https://mongoosejs.com/docs/api/connection.html#Connection.prototype.model()) functions
+ * create subclasses of `mongoose.Model` as shown below.
+ *
+ * #### Example:
+ *
+ *     // `UserModel` is a "Model", a subclass of `mongoose.Model`.
+ *     const UserModel = mongoose.model('User', new Schema({ name: String }));
+ *
+ *     // You can use a Model to create new documents using `new`:
+ *     const userDoc = new UserModel({ name: 'Foo' });
+ *     await userDoc.save();
+ *
+ *     // You also use a model to create queries:
+ *     const userFromDb = await UserModel.findOne({ name: 'Foo' });
+ *
+ * @param {Object} doc values for initial set
+ * @param {Object} [fields] optional object containing the fields that were selected in the query which returned this document. You do **not** need to set this parameter to ensure Mongoose handles your [query projection](https://mongoosejs.com/docs/api/query.html#Query.prototype.select()).
+ * @param {Boolean} [skipId=false] optional boolean. If true, mongoose doesn't add an `_id` field to the document.
+ * @inherits Document https://mongoosejs.com/docs/api/document.html
+ * @event `error`: If listening to this event, 'error' is emitted when a document was saved and an `error` occurred. If not listening, the event bubbles to the connection used to create this Model.
+ * @event `index`: Emitted after `Model#ensureIndexes` completes. If an error occurred it is passed with the event.
+ * @event `index-single-start`: Emitted when an individual index starts within `Model#ensureIndexes`. The fields and options being used to build the index are also passed with the event.
+ * @event `index-single-done`: Emitted when an individual index finishes within `Model#ensureIndexes`. If an error occurred it is passed with the event. The fields, options, and index name are also passed.
+ * @api public
+ */
+
+function Model(doc, fields, skipId) {
+  if (fields instanceof Schema) {
+    throw new TypeError('2nd argument to `Model` constructor must be a POJO or string, ' +
+      '**not** a schema. Make sure you\'re calling `mongoose.model()`, not ' +
+      '`mongoose.Model()`.');
+  }
+  if (typeof doc === 'string') {
+    throw new TypeError('First argument to `Model` constructor must be an object, ' +
+      '**not** a string. Make sure you\'re calling `mongoose.model()`, not ' +
+      '`mongoose.Model()`.');
+  }
+  Document.call(this, doc, fields, skipId);
+}
+
+/**
+ * Inherits from Document.
+ *
+ * All Model.prototype features are available on
+ * top level (non-sub) documents.
+ * @api private
+ */
+
+Object.setPrototypeOf(Model.prototype, Document.prototype);
+Model.prototype.$isMongooseModelPrototype = true;
+
+/**
+ * Connection the model uses.
+ *
+ * @api public
+ * @property db
+ * @memberOf Model
+ * @instance
+ */
+
+Model.prototype.db;
+
+/**
+ * The collection instance this model uses.
+ * A Mongoose collection is a thin wrapper around a [MongoDB Node.js driver collection]([MongoDB Node.js driver collection](https://mongodb.github.io/node-mongodb-native/Next/classes/Collection.html)).
+ * Using `Model.collection` means you bypass Mongoose middleware, validation, and casting.
+ *
+ * This property is read-only. Modifying this property is a no-op.
+ *
+ * @api public
+ * @property collection
+ * @memberOf Model
+ * @instance
+ */
+
+Model.prototype.collection;
+
+/**
+ * Internal collection the model uses.
+ *
+ * This property is read-only. Modifying this property is a no-op.
+ *
+ * @api private
+ * @property collection
+ * @memberOf Model
+ * @instance
+ */
+
+
+Model.prototype.$__collection;
+
+/**
+ * The name of the model
+ *
+ * @api public
+ * @property modelName
+ * @memberOf Model
+ * @instance
+ */
+
+Model.prototype.modelName;
+
+/**
+ * Additional properties to attach to the query when calling `save()` and
+ * `isNew` is false.
+ *
+ * @api public
+ * @property $where
+ * @memberOf Model
+ * @instance
+ */
+
+Model.prototype.$where;
+
+/**
+ * If this is a discriminator model, `baseModelName` is the name of
+ * the base model.
+ *
+ * @api public
+ * @property baseModelName
+ * @memberOf Model
+ * @instance
+ */
+
+Model.prototype.baseModelName;
+
+/**
+ * Event emitter that reports any errors that occurred. Useful for global error
+ * handling.
+ *
+ * #### Example:
+ *
+ *     MyModel.events.on('error', err => console.log(err.message));
+ *
+ *     // Prints a 'CastError' because of the above handler
+ *     await MyModel.findOne({ _id: 'Not a valid ObjectId' }).catch(noop);
+ *
+ * @api public
+ * @property events
+ * @fires error whenever any query or model function errors
+ * @memberOf Model
+ * @static
+ */
+
+Model.events;
+
+/**
+ * Compiled middleware for this model. Set in `applyHooks()`.
+ *
+ * @api private
+ * @property _middleware
+ * @memberOf Model
+ * @static
+ */
+
+Model._middleware;
+
+/*!
+ * ignore
+ */
+
+function _applyCustomWhere(doc, where) {
+  if (doc.$where == null) {
+    return;
+  }
+  for (const key of Object.keys(doc.$where)) {
+    where[key] = doc.$where[key];
+  }
+}
+
+/*!
+ * ignore
+ */
+
+Model.prototype.$__handleSave = function(options, callback) {
+  const saveOptions = {};
+
+  applyWriteConcern(this.$__schema, options);
+  if (typeof options.writeConcern !== 'undefined') {
+    saveOptions.writeConcern = {};
+    if ('w' in options.writeConcern) {
+      saveOptions.writeConcern.w = options.writeConcern.w;
+    }
+    if ('j' in options.writeConcern) {
+      saveOptions.writeConcern.j = options.writeConcern.j;
+    }
+    if ('wtimeout' in options.writeConcern) {
+      saveOptions.writeConcern.wtimeout = options.writeConcern.wtimeout;
+    }
+  } else {
+    if ('w' in options) {
+      saveOptions.w = options.w;
+    }
+    if ('j' in options) {
+      saveOptions.j = options.j;
+    }
+    if ('wtimeout' in options) {
+      saveOptions.wtimeout = options.wtimeout;
+    }
+  }
+  if ('checkKeys' in options) {
+    saveOptions.checkKeys = options.checkKeys;
+  }
+
+  const session = this.$session();
+  const asyncLocalStorage = this[modelDbSymbol].base.transactionAsyncLocalStorage?.getStore();
+  if (session != null) {
+    saveOptions.session = session;
+  } else if (!options.hasOwnProperty('session') && asyncLocalStorage?.session != null) {
+    // Only set session from asyncLocalStorage if `session` option wasn't originally passed in options
+    saveOptions.session = asyncLocalStorage.session;
+  }
+  if (this.$isNew) {
+    // send entire doc
+    const obj = this.toObject(saveToObjectOptions);
+    if ((obj || {})._id === void 0) {
+      // documents must have an _id else mongoose won't know
+      // what to update later if more changes are made. the user
+      // wouldn't know what _id was generated by mongodb either
+      // nor would the ObjectId generated by mongodb necessarily
+      // match the schema definition.
+      immediate(function() {
+        callback(new MongooseError('document must have an _id before saving'));
+      });
+      return;
+    }
+
+    this.$__version(true, obj);
+    this[modelCollectionSymbol].insertOne(obj, saveOptions).then(
+      ret => callback(null, ret),
+      err => {
+        _setIsNew(this, true);
+
+        callback(err, null);
+      }
+    );
+
+    this.$__reset();
+    _setIsNew(this, false);
+    // Make it possible to retry the insert
+    this.$__.inserting = true;
+    return;
+  }
+
+  // Make sure we don't treat it as a new object on error,
+  // since it already exists
+  this.$__.inserting = false;
+  const delta = this.$__delta();
+
+  if (options.pathsToSave) {
+    for (const key in delta[1]['$set']) {
+      if (options.pathsToSave.includes(key)) {
+        continue;
+      } else if (options.pathsToSave.some(pathToSave => key.slice(0, pathToSave.length) === pathToSave && key.charAt(pathToSave.length) === '.')) {
+        continue;
+      } else {
+        delete delta[1]['$set'][key];
+      }
+    }
+  }
+  if (delta) {
+    if (delta instanceof MongooseError) {
+      callback(delta);
+      return;
+    }
+
+    const where = this.$__where(delta[0]);
+    if (where instanceof MongooseError) {
+      callback(where);
+      return;
+    }
+
+    _applyCustomWhere(this, where);
+
+    const update = delta[1];
+    if (this.$__schema.options.minimize) {
+      for (const updateOp of Object.values(update)) {
+        if (updateOp == null) {
+          continue;
+        }
+        for (const key of Object.keys(updateOp)) {
+          if (updateOp[key] == null || typeof updateOp[key] !== 'object') {
+            continue;
+          }
+          if (!utils.isPOJO(updateOp[key])) {
+            continue;
+          }
+          minimize(updateOp[key]);
+          if (Object.keys(updateOp[key]).length === 0) {
+            delete updateOp[key];
+            update.$unset = update.$unset || {};
+            update.$unset[key] = 1;
+          }
+        }
+      }
+    }
+
+    this[modelCollectionSymbol].updateOne(where, update, saveOptions).then(
+      ret => {
+        if (ret == null) {
+          ret = { $where: where };
+        } else {
+          ret.$where = where;
+        }
+        callback(null, ret);
+      },
+      err => {
+        this.$__undoReset();
+
+        callback(err);
+      }
+    );
+  } else {
+    handleEmptyUpdate.call(this);
+    return;
+  }
+
+  // store the modified paths before the document is reset
+  this.$__.modifiedPaths = this.modifiedPaths();
+  this.$__reset();
+
+  _setIsNew(this, false);
+
+  function handleEmptyUpdate() {
+    const optionsWithCustomValues = Object.assign({}, options, saveOptions);
+    const where = this.$__where();
+    const optimisticConcurrency = this.$__schema.options.optimisticConcurrency;
+    if (optimisticConcurrency && !Array.isArray(optimisticConcurrency)) {
+      const key = this.$__schema.options.versionKey;
+      const val = this.$__getValue(key);
+      if (val != null) {
+        where[key] = val;
+      }
+    }
+
+    applyReadConcern(this.$__schema, optionsWithCustomValues);
+    this.constructor.collection.findOne(where, optionsWithCustomValues)
+      .then(documentExists => {
+        const matchedCount = !documentExists ? 0 : 1;
+        callback(null, { $where: where, matchedCount });
+      })
+      .catch(callback);
+  }
+};
+
+/*!
+ * ignore
+ */
+
+Model.prototype.$__save = function(options, callback) {
+  this.$__handleSave(options, (error, result) => {
+    if (error) {
+      error = this.$__schema._transformDuplicateKeyError(error);
+      const hooks = this.$__schema.s.hooks;
+      return hooks.execPost('save:error', this, [this], { error: error }, (error) => {
+        callback(error, this);
+      });
+    }
+    let numAffected = 0;
+    const writeConcern = options != null ?
+      options.writeConcern != null ?
+        options.writeConcern.w :
+        options.w :
+      0;
+    if (writeConcern !== 0) {
+      // Skip checking if write succeeded if writeConcern is set to
+      // unacknowledged writes, because otherwise `numAffected` will always be 0
+      if (result != null) {
+        if (Array.isArray(result)) {
+          numAffected = result.length;
+        } else if (result.matchedCount != null) {
+          numAffected = result.matchedCount;
+        } else {
+          numAffected = result;
+        }
+      }
+
+      const versionBump = this.$__.version;
+      // was this an update that required a version bump?
+      if (versionBump && !this.$__.inserting) {
+        const doIncrement = VERSION_INC === (VERSION_INC & this.$__.version);
+        this.$__.version = undefined;
+        const key = this.$__schema.options.versionKey;
+        const version = this.$__getValue(key) || 0;
+        if (numAffected <= 0) {
+          // the update failed. pass an error back
+          this.$__undoReset();
+          const err = this.$__.$versionError ||
+            new VersionError(this, version, this.$__.modifiedPaths);
+          return callback(err);
+        }
+
+        // increment version if was successful
+        if (doIncrement) {
+          this.$__setValue(key, version + 1);
+        }
+      }
+      if (result != null && numAffected <= 0) {
+        this.$__undoReset();
+        error = new DocumentNotFoundError(result.$where,
+          this.constructor.modelName, numAffected, result);
+        const hooks = this.$__schema.s.hooks;
+        return hooks.execPost('save:error', this, [this], { error: error }, (error) => {
+          callback(error, this);
+        });
+      }
+    }
+    this.$__.saving = undefined;
+    this.$__.savedState = {};
+    this.$emit('save', this, numAffected);
+    this.constructor.emit('save', this, numAffected);
+    callback(null, this);
+  });
+};
+
+/*!
+ * ignore
+ */
+
+function generateVersionError(doc, modifiedPaths) {
+  const key = doc.$__schema.options.versionKey;
+  if (!key) {
+    return null;
+  }
+  const version = doc.$__getValue(key) || 0;
+  return new VersionError(doc, version, modifiedPaths);
+}
+
+/**
+ * Saves this document by inserting a new document into the database if [document.isNew](https://mongoosejs.com/docs/api/document.html#Document.prototype.isNew) is `true`,
+ * or sends an [updateOne](https://mongoosejs.com/docs/api/document.html#Document.prototype.updateOne()) operation with just the modified paths if `isNew` is `false`.
+ *
+ * #### Example:
+ *
+ *     product.sold = Date.now();
+ *     product = await product.save();
+ *
+ * If save is successful, the returned promise will fulfill with the document
+ * saved.
+ *
+ * #### Example:
+ *
+ *     const newProduct = await product.save();
+ *     newProduct === product; // true
+ *
+ * @param {Object} [options] options optional options
+ * @param {Session} [options.session=null] the [session](https://www.mongodb.com/docs/manual/reference/server-sessions/) associated with this save operation. If not specified, defaults to the [document's associated session](https://mongoosejs.com/docs/api/document.html#Document.prototype.session()).
+ * @param {Object} [options.safe] (DEPRECATED) overrides [schema's safe option](https://mongoosejs.com/docs/guide.html#safe). Use the `w` option instead.
+ * @param {Boolean} [options.validateBeforeSave] set to false to save without validating.
+ * @param {Boolean} [options.validateModifiedOnly=false] if `true`, Mongoose will only validate modified paths, as opposed to modified paths and `required` paths.
+ * @param {Number|String} [options.w] set the [write concern](https://www.mongodb.com/docs/manual/reference/write-concern/#w-option). Overrides the [schema-level `writeConcern` option](https://mongoosejs.com/docs/guide.html#writeConcern)
+ * @param {Boolean} [options.j] set to true for MongoDB to wait until this `save()` has been [journaled before resolving the returned promise](https://www.mongodb.com/docs/manual/reference/write-concern/#j-option). Overrides the [schema-level `writeConcern` option](https://mongoosejs.com/docs/guide.html#writeConcern)
+ * @param {Number} [options.wtimeout] sets a [timeout for the write concern](https://www.mongodb.com/docs/manual/reference/write-concern/#wtimeout). Overrides the [schema-level `writeConcern` option](https://mongoosejs.com/docs/guide.html#writeConcern).
+ * @param {Boolean} [options.checkKeys=true] the MongoDB driver prevents you from saving keys that start with '$' or contain '.' by default. Set this option to `false` to skip that check. See [restrictions on field names](https://docs.mongodb.com/manual/reference/limits/#mongodb-limit-Restrictions-on-Field-Names)
+ * @param {Boolean} [options.timestamps=true] if `false` and [timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this `save()`.
+ * @param {Array} [options.pathsToSave] An array of paths that tell mongoose to only validate and save the paths in `pathsToSave`.
+ * @throws {DocumentNotFoundError} if this [save updates an existing document](https://mongoosejs.com/docs/api/document.html#Document.prototype.isNew) but the document doesn't exist in the database. For example, you will get this error if the document is [deleted between when you retrieved the document and when you saved it](documents.html#updating).
+ * @return {Promise}
+ * @api public
+ * @see middleware https://mongoosejs.com/docs/middleware.html
+ */
+
+Model.prototype.save = async function save(options) {
+  if (typeof options === 'function' || typeof arguments[1] === 'function') {
+    throw new MongooseError('Model.prototype.save() no longer accepts a callback');
+  }
+
+  let parallelSave;
+  this.$op = 'save';
+
+  if (this.$__.saving) {
+    parallelSave = new ParallelSaveError(this);
+  } else {
+    this.$__.saving = new ParallelSaveError(this);
+  }
+
+  options = new SaveOptions(options);
+  if (options.hasOwnProperty('session')) {
+    this.$session(options.session);
+  }
+  if (this.$__.timestamps != null) {
+    options.timestamps = this.$__.timestamps;
+  }
+  this.$__.$versionError = generateVersionError(this, this.modifiedPaths());
+
+  if (parallelSave) {
+    this.$__handleReject(parallelSave);
+    throw parallelSave;
+  }
+
+  this.$__.saveOptions = options;
+
+  await new Promise((resolve, reject) => {
+    this.$__save(options, error => {
+      this.$__.saving = null;
+      this.$__.saveOptions = null;
+      this.$__.$versionError = null;
+      this.$op = null;
+      if (error != null) {
+        this.$__handleReject(error);
+        return reject(error);
+      }
+
+      resolve();
+    });
+  });
+
+  return this;
+};
+
+Model.prototype.$save = Model.prototype.save;
+
+/**
+ * Appends versioning to the where and update clauses.
+ *
+ * @api private
+ * @method $__version
+ * @memberOf Model
+ * @instance
+ */
+
+Model.prototype.$__version = function(where, delta) {
+  const key = this.$__schema.options.versionKey;
+  if (where === true) {
+    // this is an insert
+    if (key) {
+      setDottedPath(delta, key, 0);
+      this.$__setValue(key, 0);
+    }
+    return;
+  }
+
+  if (key === false) {
+    return;
+  }
+
+  // updates
+
+  // only apply versioning if our versionKey was selected. else
+  // there is no way to select the correct version. we could fail
+  // fast here and force them to include the versionKey but
+  // thats a bit intrusive. can we do this automatically?
+
+  if (!this.$__isSelected(key)) {
+    return;
+  }
+
+  // $push $addToSet don't need the where clause set
+  if (VERSION_WHERE === (VERSION_WHERE & this.$__.version)) {
+    const value = this.$__getValue(key);
+    if (value != null) where[key] = value;
+  }
+
+  if (VERSION_INC === (VERSION_INC & this.$__.version)) {
+    if (get(delta.$set, key, null) != null) {
+      // Version key is getting set, means we'll increment the doc's version
+      // after a successful save, so we should set the incremented version so
+      // future saves don't fail (gh-5779)
+      ++delta.$set[key];
+    } else {
+      delta.$inc = delta.$inc || {};
+      delta.$inc[key] = 1;
+    }
+  }
+};
+
+/**
+ * Signal that we desire an increment of this documents version.
+ *
+ * #### Example:
+ *
+ *     const doc = await Model.findById(id);
+ *     doc.increment();
+ *     await doc.save();
+ *
+ * @see versionKeys https://mongoosejs.com/docs/guide.html#versionKey
+ * @memberOf Model
+ * @method increment
+ * @api public
+ */
+
+Model.prototype.increment = function increment() {
+  this.$__.version = VERSION_ALL;
+  return this;
+};
+
+/**
+ * Returns a query object
+ *
+ * @api private
+ * @method $__where
+ * @memberOf Model
+ * @instance
+ */
+
+Model.prototype.$__where = function _where(where) {
+  where || (where = {});
+
+  if (!where._id) {
+    where._id = this._doc._id;
+  }
+
+  if (this._doc._id === void 0) {
+    return new MongooseError('No _id found on document!');
+  }
+
+  return where;
+};
+
+/**
+ * Delete this document from the db. Returns a Query instance containing a `deleteOne` operation by this document's `_id`.
+ *
+ * #### Example:
+ *
+ *     await product.deleteOne();
+ *     await Product.findById(product._id); // null
+ *
+ * Since `deleteOne()` returns a Query, the `deleteOne()` will **not** execute unless you use either `await`, `.then()`, `.catch()`, or [`.exec()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.exec())
+ *
+ * #### Example:
+ *
+ *     product.deleteOne(); // Doesn't do anything
+ *     product.deleteOne().exec(); // Deletes the document, returns a promise
+ *
+ * @return {Query} Query
+ * @api public
+ */
+
+Model.prototype.deleteOne = function deleteOne(options) {
+  if (typeof options === 'function' ||
+      typeof arguments[1] === 'function') {
+    throw new MongooseError('Model.prototype.deleteOne() no longer accepts a callback');
+  }
+
+  if (!options) {
+    options = {};
+  }
+
+  if (options.hasOwnProperty('session')) {
+    this.$session(options.session);
+  }
+
+  const self = this;
+  const where = this.$__where();
+  if (where instanceof Error) {
+    throw where;
+  }
+  const query = self.constructor.deleteOne(where, options);
+
+  if (this.$session() != null) {
+    if (!('session' in query.options)) {
+      query.options.session = this.$session();
+    }
+  }
+
+  query.pre(function queryPreDeleteOne(cb) {
+    self.constructor._middleware.execPre('deleteOne', self, [self], cb);
+  });
+  query.pre(function callSubdocPreHooks(cb) {
+    each(self.$getAllSubdocs(), (subdoc, cb) => {
+      subdoc.constructor._middleware.execPre('deleteOne', subdoc, [subdoc], cb);
+    }, cb);
+  });
+  query.pre(function skipIfAlreadyDeleted(cb) {
+    if (self.$__.isDeleted) {
+      return cb(Kareem.skipWrappedFunction());
+    }
+    return cb();
+  });
+  query.post(function callSubdocPostHooks(cb) {
+    each(self.$getAllSubdocs(), (subdoc, cb) => {
+      subdoc.constructor._middleware.execPost('deleteOne', subdoc, [subdoc], {}, cb);
+    }, cb);
+  });
+  query.post(function queryPostDeleteOne(cb) {
+    self.constructor._middleware.execPost('deleteOne', self, [self], {}, cb);
+  });
+
+  return query;
+};
+
+/**
+ * Returns the model instance used to create this document if no `name` specified.
+ * If `name` specified, returns the model with the given `name`.
+ *
+ * #### Example:
+ *
+ *     const doc = new Tank({});
+ *     doc.$model() === Tank; // true
+ *     await doc.$model('User').findById(id);
+ *
+ * @param {String} [name] model name
+ * @method $model
+ * @api public
+ * @return {Model}
+ */
+
+Model.prototype.$model = function $model(name) {
+  if (arguments.length === 0) {
+    return this.constructor;
+  }
+  return this[modelDbSymbol].model(name);
+};
+
+/**
+ * Returns the model instance used to create this document if no `name` specified.
+ * If `name` specified, returns the model with the given `name`.
+ *
+ * #### Example:
+ *
+ *     const doc = new Tank({});
+ *     doc.$model() === Tank; // true
+ *     await doc.$model('User').findById(id);
+ *
+ * @param {String} [name] model name
+ * @method model
+ * @api public
+ * @return {Model}
+ */
+
+Model.prototype.model = Model.prototype.$model;
+
+/**
+ * Returns a document with `_id` only if at least one document exists in the database that matches
+ * the given `filter`, and `null` otherwise.
+ *
+ * Under the hood, `MyModel.exists({ answer: 42 })` is equivalent to
+ * `MyModel.findOne({ answer: 42 }).select({ _id: 1 }).lean()`
+ *
+ * #### Example:
+ *
+ *     await Character.deleteMany({});
+ *     await Character.create({ name: 'Jean-Luc Picard' });
+ *
+ *     await Character.exists({ name: /picard/i }); // { _id: ... }
+ *     await Character.exists({ name: /riker/i }); // null
+ *
+ * This function triggers the following middleware.
+ *
+ * - `findOne()`
+ *
+ * @param {Object} filter
+ * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions())
+ * @return {Query}
+ */
+
+Model.exists = function exists(filter, options) {
+  _checkContext(this, 'exists');
+  if (typeof arguments[2] === 'function') {
+    throw new MongooseError('Model.exists() no longer accepts a callback');
+  }
+
+  const query = this.findOne(filter).
+    select({ _id: 1 }).
+    lean().
+    setOptions(options);
+
+  return query;
+};
+
+/**
+ * Adds a discriminator type.
+ *
+ * #### Example:
+ *
+ *     function BaseSchema() {
+ *       Schema.apply(this, arguments);
+ *
+ *       this.add({
+ *         name: String,
+ *         createdAt: Date
+ *       });
+ *     }
+ *     util.inherits(BaseSchema, Schema);
+ *
+ *     const PersonSchema = new BaseSchema();
+ *     const BossSchema = new BaseSchema({ department: String });
+ *
+ *     const Person = mongoose.model('Person', PersonSchema);
+ *     const Boss = Person.discriminator('Boss', BossSchema);
+ *     new Boss().__t; // "Boss". `__t` is the default `discriminatorKey`
+ *
+ *     const employeeSchema = new Schema({ boss: ObjectId });
+ *     const Employee = Person.discriminator('Employee', employeeSchema, 'staff');
+ *     new Employee().__t; // "staff" because of 3rd argument above
+ *
+ * @param {String} name discriminator model name
+ * @param {Schema} schema discriminator model schema
+ * @param {Object|String} [options] If string, same as `options.value`.
+ * @param {String} [options.value] the string stored in the `discriminatorKey` property. If not specified, Mongoose uses the `name` parameter.
+ * @param {Boolean} [options.clone=true] By default, `discriminator()` clones the given `schema`. Set to `false` to skip cloning.
+ * @param {Boolean} [options.overwriteModels=false] by default, Mongoose does not allow you to define a discriminator with the same name as another discriminator. Set this to allow overwriting discriminators with the same name.
+ * @param {Boolean} [options.mergeHooks=true] By default, Mongoose merges the base schema's hooks with the discriminator schema's hooks. Set this option to `false` to make Mongoose use the discriminator schema's hooks instead.
+ * @param {Boolean} [options.mergePlugins=true] By default, Mongoose merges the base schema's plugins with the discriminator schema's plugins. Set this option to `false` to make Mongoose use the discriminator schema's plugins instead.
+ * @return {Model} The newly created discriminator model
+ * @api public
+ */
+
+Model.discriminator = function(name, schema, options) {
+  let model;
+  if (typeof name === 'function') {
+    model = name;
+    name = utils.getFunctionName(model);
+    if (!(model.prototype instanceof Model)) {
+      throw new MongooseError('The provided class ' + name + ' must extend Model');
+    }
+  }
+
+  options = options || {};
+  const value = utils.isPOJO(options) ? options.value : options;
+  const clone = typeof options.clone === 'boolean' ? options.clone : true;
+  const mergePlugins = typeof options.mergePlugins === 'boolean' ? options.mergePlugins : true;
+  const overwriteModels = typeof options.overwriteModels === 'boolean' ? options.overwriteModels : false;
+
+  _checkContext(this, 'discriminator');
+
+  if (utils.isObject(schema) && !schema.instanceOfSchema) {
+    schema = new Schema(schema);
+  }
+  if (schema instanceof Schema && clone) {
+    schema = schema.clone();
+  }
+
+  schema = discriminator(this, name, schema, value, mergePlugins, options.mergeHooks, overwriteModels);
+  if (this.db.models[name] && !schema.options.overwriteModels && !overwriteModels) {
+    throw new OverwriteModelError(name);
+  }
+
+  schema.$isRootDiscriminator = true;
+  schema.$globalPluginsApplied = true;
+
+  model = this.db.model(model || name, schema, this.$__collection.name);
+  this.discriminators[name] = model;
+  const d = this.discriminators[name];
+  Object.setPrototypeOf(d.prototype, this.prototype);
+  Object.defineProperty(d, 'baseModelName', {
+    value: this.modelName,
+    configurable: true,
+    writable: false
+  });
+
+  // apply methods and statics
+  applyMethods(d, schema);
+  applyStatics(d, schema);
+
+  if (this[subclassedSymbol] != null) {
+    for (const submodel of this[subclassedSymbol]) {
+      submodel.discriminators = submodel.discriminators || {};
+      submodel.discriminators[name] =
+        model.__subclass(model.db, schema, submodel.collection.name);
+    }
+  }
+
+  return d;
+};
+
+/**
+ * Make sure `this` is a model
+ * @api private
+ */
+
+function _checkContext(ctx, fnName) {
+  // Check context, because it is easy to mistakenly type
+  // `new Model.discriminator()` and get an incomprehensible error
+  if (ctx == null || ctx === global) {
+    throw new MongooseError('`Model.' + fnName + '()` cannot run without a ' +
+      'model as `this`. Make sure you are calling `MyModel.' + fnName + '()` ' +
+      'where `MyModel` is a Mongoose model.');
+  } else if (ctx[modelSymbol] == null) {
+    throw new MongooseError('`Model.' + fnName + '()` cannot run without a ' +
+      'model as `this`. Make sure you are not calling ' +
+      '`new Model.' + fnName + '()`');
+  }
+}
+
+// Model (class) features
+
+/*!
+ * Give the constructor the ability to emit events.
+ */
+
+for (const i in EventEmitter.prototype) {
+  Model[i] = EventEmitter.prototype[i];
+}
+
+/**
+ * This function is responsible for initializing the underlying connection in MongoDB based on schema options.
+ * This function performs the following operations:
+ *
+ * - `createCollection()` unless [`autoCreate`](https://mongoosejs.com/docs/guide.html#autoCreate) option is turned off
+ * - `ensureIndexes()` unless [`autoIndex`](https://mongoosejs.com/docs/guide.html#autoIndex) option is turned off
+ * - `createSearchIndex()` on all schema search indexes if `autoSearchIndex` is enabled.
+ *
+ * Mongoose calls this function automatically when a model is a created using
+ * [`mongoose.model()`](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.model()) or
+ * [`connection.model()`](https://mongoosejs.com/docs/api/connection.html#Connection.prototype.model()), so you
+ * don't need to call `init()` to trigger index builds.
+ *
+ * However, you _may_ need to call `init()`  to get back a promise that will resolve when your indexes are finished.
+ * Calling `await Model.init()` is helpful if you need to wait for indexes to build before continuing.
+ * For example, if you want to wait for unique indexes to build before continuing with a test case.
+ *
+ * #### Example:
+ *
+ *     const eventSchema = new Schema({ thing: { type: 'string', unique: true } })
+ *     // This calls `Event.init()` implicitly, so you don't need to call
+ *     // `Event.init()` on your own.
+ *     const Event = mongoose.model('Event', eventSchema);
+ *
+ *     await Event.init();
+ *     console.log('Indexes are done building!');
+ *
+ * @api public
+ * @returns {Promise}
+ */
+
+Model.init = function init() {
+  _checkContext(this, 'init');
+  if (typeof arguments[0] === 'function') {
+    throw new MongooseError('Model.init() no longer accepts a callback');
+  }
+
+  this.schema.emit('init', this);
+
+  if (this.$init != null) {
+    return this.$init;
+  }
+
+  const conn = this.db;
+  const _ensureIndexes = async() => {
+    const autoIndex = utils.getOption(
+      'autoIndex',
+      this.schema.options,
+      conn.config,
+      conn.base.options
+    );
+    if (!autoIndex) {
+      return;
+    }
+    return await this.ensureIndexes({ _automatic: true });
+  };
+  const _createSearchIndexes = async() => {
+    const autoSearchIndex = utils.getOption(
+      'autoSearchIndex',
+      this.schema.options,
+      conn.config,
+      conn.base.options
+    );
+    if (!autoSearchIndex) {
+      return;
+    }
+
+    const results = [];
+    for (const searchIndex of this.schema._searchIndexes) {
+      results.push(await this.createSearchIndex(searchIndex));
+    }
+    return results;
+  };
+  const _createCollection = async() => {
+    if ((conn.readyState === STATES.connecting || conn.readyState === STATES.disconnected) && conn._shouldBufferCommands()) {
+      await new Promise(resolve => {
+        conn._queue.push({ fn: resolve });
+      });
+    }
+    const autoCreate = utils.getOption(
+      'autoCreate',
+      this.schema.options,
+      conn.config,
+      conn.base.options
+    );
+    if (!autoCreate) {
+      return;
+    }
+    return await this.createCollection();
+  };
+
+  this.$init = _createCollection().
+    then(() => _ensureIndexes()).
+    then(() => _createSearchIndexes());
+
+  const _catch = this.$init.catch;
+  const _this = this;
+  this.$init.catch = function() {
+    _this.$caught = true;
+    return _catch.apply(_this.$init, arguments);
+  };
+
+  return this.$init;
+};
+
+
+/**
+ * Create the collection for this model. By default, if no indexes are specified,
+ * mongoose will not create the collection for the model until any documents are
+ * created. Use this method to create the collection explicitly.
+ *
+ * Note 1: You may need to call this before starting a transaction
+ * See https://www.mongodb.com/docs/manual/core/transactions/#transactions-and-operations
+ *
+ * Note 2: You don't have to call this if your schema contains index or unique field.
+ * In that case, just use `Model.init()`
+ *
+ * #### Example:
+ *
+ *     const userSchema = new Schema({ name: String })
+ *     const User = mongoose.model('User', userSchema);
+ *
+ *     User.createCollection().then(function(collection) {
+ *       console.log('Collection is created!');
+ *     });
+ *
+ * @api public
+ * @param {Object} [options] see [MongoDB driver docs](https://mongodb.github.io/node-mongodb-native/4.9/classes/Db.html#createCollection)
+ * @returns {Promise}
+ */
+
+Model.createCollection = async function createCollection(options) {
+  _checkContext(this, 'createCollection');
+  if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function') {
+    throw new MongooseError('Model.createCollection() no longer accepts a callback');
+  }
+
+  const shouldSkip = await new Promise((resolve, reject) => {
+    this.hooks.execPre('createCollection', this, [options], (err) => {
+      if (err != null) {
+        if (err instanceof Kareem.skipWrappedFunction) {
+          return resolve(true);
+        }
+        return reject(err);
+      }
+      resolve();
+    });
+  });
+
+  const collectionOptions = this &&
+    this.schema &&
+    this.schema.options &&
+    this.schema.options.collectionOptions;
+  if (collectionOptions != null) {
+    options = Object.assign({}, collectionOptions, options);
+  }
+
+  const schemaCollation = this &&
+    this.schema &&
+    this.schema.options &&
+    this.schema.options.collation;
+  if (schemaCollation != null) {
+    options = Object.assign({ collation: schemaCollation }, options);
+  }
+  const capped = this &&
+    this.schema &&
+    this.schema.options &&
+    this.schema.options.capped;
+  if (capped != null) {
+    if (typeof capped === 'number') {
+      options = Object.assign({ capped: true, size: capped }, options);
+    } else if (typeof capped === 'object') {
+      options = Object.assign({ capped: true }, capped, options);
+    }
+  }
+  const timeseries = this &&
+    this.schema &&
+    this.schema.options &&
+    this.schema.options.timeseries;
+  if (timeseries != null) {
+    options = Object.assign({ timeseries }, options);
+    if (options.expireAfterSeconds != null) {
+      // do nothing
+    } else if (options.expires != null) {
+      utils.expires(options);
+    } else if (this.schema.options.expireAfterSeconds != null) {
+      options.expireAfterSeconds = this.schema.options.expireAfterSeconds;
+    } else if (this.schema.options.expires != null) {
+      options.expires = this.schema.options.expires;
+      utils.expires(options);
+    }
+  }
+
+  const clusteredIndex = this &&
+    this.schema &&
+    this.schema.options &&
+    this.schema.options.clusteredIndex;
+  if (clusteredIndex != null) {
+    options = Object.assign({ clusteredIndex: { ...clusteredIndex, unique: true } }, options);
+  }
+
+  try {
+    if (!shouldSkip) {
+      await this.db.createCollection(this.$__collection.collectionName, options);
+    }
+  } catch (err) {
+    if (err != null && (err.name !== 'MongoServerError' || err.code !== 48)) {
+      await new Promise((resolve, reject) => {
+        const _opts = { error: err };
+        this.hooks.execPost('createCollection', this, [null], _opts, (err) => {
+          if (err != null) {
+            return reject(err);
+          }
+          resolve();
+        });
+      });
+    }
+  }
+
+  await new Promise((resolve, reject) => {
+    this.hooks.execPost('createCollection', this, [this.$__collection], (err) => {
+      if (err != null) {
+        return reject(err);
+      }
+      resolve();
+    });
+  });
+
+  return this.$__collection;
+};
+
+/**
+ * Makes the indexes in MongoDB match the indexes defined in this model's
+ * schema. This function will drop any indexes that are not defined in
+ * the model's schema except the `_id` index, and build any indexes that
+ * are in your schema but not in MongoDB.
+ *
+ * See the [introductory blog post](https://thecodebarbarian.com/whats-new-in-mongoose-5-2-syncindexes)
+ * for more information.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ name: { type: String, unique: true } });
+ *     const Customer = mongoose.model('Customer', schema);
+ *     await Customer.collection.createIndex({ age: 1 }); // Index is not in schema
+ *     // Will drop the 'age' index and create an index on `name`
+ *     await Customer.syncIndexes();
+ *
+ * You should be careful about running `syncIndexes()` on production applications under heavy load,
+ * because index builds are expensive operations, and unexpected index drops can lead to degraded
+ * performance. Before running `syncIndexes()`, you can use the [`diffIndexes()` function](#Model.diffIndexes())
+ * to check what indexes `syncIndexes()` will drop and create.
+ *
+ * #### Example:
+ *
+ *     const { toDrop, toCreate } = await Model.diffIndexes();
+ *     toDrop; // Array of strings containing names of indexes that `syncIndexes()` will drop
+ *     toCreate; // Array of strings containing names of indexes that `syncIndexes()` will create
+ *
+ * @param {Object} [options] options to pass to `ensureIndexes()`
+ * @param {Boolean} [options.background=null] if specified, overrides each index's `background` property
+ * @param {Boolean} [options.hideIndexes=false] set to `true` to hide indexes instead of dropping. Requires MongoDB server 4.4 or higher
+ * @return {Promise}
+ * @api public
+ */
+
+Model.syncIndexes = async function syncIndexes(options) {
+  _checkContext(this, 'syncIndexes');
+  if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function') {
+    throw new MongooseError('Model.syncIndexes() no longer accepts a callback');
+  }
+
+  const model = this;
+
+  try {
+    await model.createCollection();
+  } catch (err) {
+    if (err != null && (err.name !== 'MongoServerError' || err.code !== 48)) {
+      throw err;
+    }
+  }
+
+  const diffIndexesResult = await model.diffIndexes();
+  const dropped = await model.cleanIndexes({ ...options, toDrop: diffIndexesResult.toDrop });
+  await model.createIndexes({ ...options, toCreate: diffIndexesResult.toCreate });
+
+  return dropped;
+};
+
+/**
+ * Create an [Atlas search index](https://www.mongodb.com/docs/atlas/atlas-search/create-index/).
+ * This function only works when connected to MongoDB Atlas.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ name: { type: String, unique: true } });
+ *     const Customer = mongoose.model('Customer', schema);
+ *     await Customer.createSearchIndex({ name: 'test', definition: { mappings: { dynamic: true } } });
+ *
+ * @param {Object} description index options, including `name` and `definition`
+ * @param {String} description.name
+ * @param {Object} description.definition
+ * @return {Promise}
+ * @api public
+ */
+
+Model.createSearchIndex = async function createSearchIndex(description) {
+  _checkContext(this, 'createSearchIndex');
+
+  return await this.$__collection.createSearchIndex(description);
+};
+
+/**
+ * Update an existing [Atlas search index](https://www.mongodb.com/docs/atlas/atlas-search/create-index/).
+ * This function only works when connected to MongoDB Atlas.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ name: { type: String, unique: true } });
+ *     const Customer = mongoose.model('Customer', schema);
+ *     await Customer.updateSearchIndex('test', { mappings: { dynamic: true } });
+ *
+ * @param {String} name
+ * @param {Object} definition
+ * @return {Promise}
+ * @api public
+ */
+
+Model.updateSearchIndex = async function updateSearchIndex(name, definition) {
+  _checkContext(this, 'updateSearchIndex');
+
+  return await this.$__collection.updateSearchIndex(name, definition);
+};
+
+/**
+ * Delete an existing [Atlas search index](https://www.mongodb.com/docs/atlas/atlas-search/create-index/) by name.
+ * This function only works when connected to MongoDB Atlas.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ name: { type: String, unique: true } });
+ *     const Customer = mongoose.model('Customer', schema);
+ *     await Customer.dropSearchIndex('test');
+ *
+ * @param {String} name
+ * @return {Promise}
+ * @api public
+ */
+
+Model.dropSearchIndex = async function dropSearchIndex(name) {
+  _checkContext(this, 'dropSearchIndex');
+
+  return await this.$__collection.dropSearchIndex(name);
+};
+
+/**
+ * List all [Atlas search indexes](https://www.mongodb.com/docs/atlas/atlas-search/create-index/) on this model's collection.
+ * This function only works when connected to MongoDB Atlas.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ name: { type: String, unique: true } });
+ *     const Customer = mongoose.model('Customer', schema);
+ *
+ *     await Customer.createSearchIndex({ name: 'test', definition: { mappings: { dynamic: true } } });
+ *     const res = await Customer.listSearchIndexes(); // Includes `[{ name: 'test' }]`
+ *
+ * @param {Object} [options]
+ * @return {Promise<Array>}
+ * @api public
+ */
+
+Model.listSearchIndexes = async function listSearchIndexes(options) {
+  _checkContext(this, 'listSearchIndexes');
+
+  const cursor = await this.$__collection.listSearchIndexes(options);
+
+  return await cursor.toArray();
+};
+
+/**
+ * Does a dry-run of `Model.syncIndexes()`, returning the indexes that `syncIndexes()` would drop and create if you were to run `syncIndexes()`.
+ *
+ * #### Example:
+ *
+ *     const { toDrop, toCreate } = await Model.diffIndexes();
+ *     toDrop; // Array of strings containing names of indexes that `syncIndexes()` will drop
+ *     toCreate; // Array of strings containing names of indexes that `syncIndexes()` will create
+ *
+ * @param {Object} [options]
+ * @return {Promise<Object>} contains the indexes that would be dropped in MongoDB and indexes that would be created in MongoDB as `{ toDrop: string[], toCreate: string[] }`.
+ */
+
+Model.diffIndexes = async function diffIndexes() {
+  if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function') {
+    throw new MongooseError('Model.syncIndexes() no longer accepts a callback');
+  }
+
+  const model = this;
+
+  let dbIndexes = await model.listIndexes().catch(err => {
+    if (err.codeName == 'NamespaceNotFound') {
+      return undefined;
+    }
+    throw err;
+  });
+  if (dbIndexes === undefined) {
+    dbIndexes = [];
+  }
+  dbIndexes = getRelatedDBIndexes(model, dbIndexes);
+
+  const schema = model.schema;
+  const schemaIndexes = getRelatedSchemaIndexes(model, schema.indexes());
+
+  const toDrop = getIndexesToDrop(schema, schemaIndexes, dbIndexes);
+  const toCreate = getIndexesToCreate(schema, schemaIndexes, dbIndexes, toDrop);
+
+  return { toDrop, toCreate };
+};
+
+function getIndexesToCreate(schema, schemaIndexes, dbIndexes, toDrop) {
+  const toCreate = [];
+
+  for (const [schemaIndexKeysObject, schemaIndexOptions] of schemaIndexes) {
+    let found = false;
+
+    const options = decorateDiscriminatorIndexOptions(schema, clone(schemaIndexOptions));
+
+    for (const index of dbIndexes) {
+      if (isDefaultIdIndex(index)) {
+        continue;
+      }
+      if (
+        isIndexEqual(schemaIndexKeysObject, options, index) &&
+        !toDrop.includes(index.name)
+      ) {
+        found = true;
+        break;
+      }
+    }
+
+    if (!found) {
+      toCreate.push(schemaIndexKeysObject);
+    }
+  }
+
+  return toCreate;
+}
+
+function getIndexesToDrop(schema, schemaIndexes, dbIndexes) {
+  const toDrop = [];
+
+  for (const dbIndex of dbIndexes) {
+    let found = false;
+    // Never try to drop `_id` index, MongoDB server doesn't allow it
+    if (isDefaultIdIndex(dbIndex)) {
+      continue;
+    }
+    // Timeseries collections have a default index on { timeField: 1, metaField: 1 }.
+    if (isTimeseriesIndex(dbIndex, schema.options)) {
+      continue;
+    }
+
+    for (const [schemaIndexKeysObject, schemaIndexOptions] of schemaIndexes) {
+      const options = decorateDiscriminatorIndexOptions(schema, clone(schemaIndexOptions));
+      applySchemaCollation(schemaIndexKeysObject, options, schema.options);
+
+      if (isIndexEqual(schemaIndexKeysObject, options, dbIndex)) {
+        found = true;
+        break;
+      }
+    }
+
+    if (found) {
+      continue;
+    }
+
+    toDrop.push(dbIndex.name);
+  }
+
+  return toDrop;
+}
+/**
+ * Deletes all indexes that aren't defined in this model's schema. Used by
+ * `syncIndexes()`.
+ *
+ * The returned promise resolves to a list of the dropped indexes' names as an array
+ *
+ * @param {Object} [options]
+ * @param {Array<String>} [options.toDrop] if specified, contains a list of index names to drop
+ * @param {Boolean} [options.hideIndexes=false] set to `true` to hide indexes instead of dropping. Requires MongoDB server 4.4 or higher
+ * @return {Promise<String>} list of dropped or hidden index names
+ * @api public
+ */
+
+Model.cleanIndexes = async function cleanIndexes(options) {
+  _checkContext(this, 'cleanIndexes');
+  if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function') {
+    throw new MongooseError('Model.cleanIndexes() no longer accepts a callback');
+  }
+  const model = this;
+
+  if (Array.isArray(options && options.toDrop)) {
+    const res = await _dropIndexes(options.toDrop, model, options);
+    return res;
+  }
+
+  const res = await model.diffIndexes();
+  return await _dropIndexes(res.toDrop, model, options);
+};
+
+async function _dropIndexes(toDrop, model, options) {
+  if (toDrop.length === 0) {
+    return [];
+  }
+
+  const collection = model.$__collection;
+  if (options && options.hideIndexes) {
+    await Promise.all(toDrop.map(indexName => {
+      return model.db.db.command({
+        collMod: collection.collectionName,
+        index: { name: indexName, hidden: true }
+      });
+    }));
+  } else {
+    await Promise.all(toDrop.map(indexName => collection.dropIndex(indexName)));
+  }
+
+  return toDrop;
+}
+
+/**
+ * Lists the indexes currently defined in MongoDB. This may or may not be
+ * the same as the indexes defined in your schema depending on whether you
+ * use the [`autoIndex` option](https://mongoosejs.com/docs/guide.html#autoIndex) and if you
+ * build indexes manually.
+ *
+ * @return {Promise}
+ * @api public
+ */
+
+Model.listIndexes = async function listIndexes() {
+  _checkContext(this, 'listIndexes');
+  if (typeof arguments[0] === 'function') {
+    throw new MongooseError('Model.listIndexes() no longer accepts a callback');
+  }
+
+  if (this.$__collection.buffer) {
+    await new Promise(resolve => {
+      this.$__collection.addQueue(resolve);
+    });
+  }
+
+  return this.$__collection.listIndexes().toArray();
+};
+
+/**
+ * Sends `createIndex` commands to mongo for each index declared in the schema.
+ * The `createIndex` commands are sent in series.
+ *
+ * #### Example:
+ *
+ *     await Event.ensureIndexes();
+ *
+ * After completion, an `index` event is emitted on this `Model` passing an error if one occurred.
+ *
+ * #### Example:
+ *
+ *     const eventSchema = new Schema({ thing: { type: 'string', unique: true } })
+ *     const Event = mongoose.model('Event', eventSchema);
+ *
+ *     Event.on('index', function (err) {
+ *       if (err) console.error(err); // error occurred during index creation
+ *     });
+ *
+ * _NOTE: It is not recommended that you run this in production. Index creation may impact database performance depending on your load. Use with caution._
+ *
+ * @param {Object} [options] internal options
+ * @return {Promise}
+ * @api public
+ */
+
+Model.ensureIndexes = async function ensureIndexes(options) {
+  _checkContext(this, 'ensureIndexes');
+  if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function') {
+    throw new MongooseError('Model.ensureIndexes() no longer accepts a callback');
+  }
+
+  await new Promise((resolve, reject) => {
+    _ensureIndexes(this, options, (err) => {
+      if (err != null) {
+        return reject(err);
+      }
+      resolve();
+    });
+  });
+};
+
+/**
+ * Similar to `ensureIndexes()`, except for it uses the [`createIndex`](https://mongodb.github.io/node-mongodb-native/4.9/classes/Db.html#createIndex)
+ * function.
+ *
+ * @param {Object} [options] internal options
+ * @return {Promise}
+ * @api public
+ */
+
+Model.createIndexes = async function createIndexes(options) {
+  _checkContext(this, 'createIndexes');
+
+  if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function') {
+    throw new MongooseError('Model.createIndexes() no longer accepts a callback');
+  }
+
+  return this.ensureIndexes(options);
+};
+
+
+/*!
+ * ignore
+ */
+
+function _ensureIndexes(model, options, callback) {
+  const indexes = model.schema.indexes();
+  let indexError;
+
+  options = options || {};
+  const done = function(err) {
+    if (err && !model.$caught) {
+      model.emit('error', err);
+    }
+    model.emit('index', err || indexError);
+    callback && callback(err || indexError);
+  };
+
+  for (const index of indexes) {
+    if (isDefaultIdIndex(index)) {
+      utils.warn('mongoose: Cannot specify a custom index on `_id` for ' +
+        'model name "' + model.modelName + '", ' +
+        'MongoDB does not allow overwriting the default `_id` index. See ' +
+        'https://bit.ly/mongodb-id-index');
+    }
+  }
+
+  if (!indexes.length) {
+    immediate(function() {
+      done();
+    });
+    return;
+  }
+  // Indexes are created one-by-one to support how MongoDB < 2.4 deals
+  // with background indexes.
+
+  const indexSingleDone = function(err, fields, options, name) {
+    model.emit('index-single-done', err, fields, options, name);
+  };
+  const indexSingleStart = function(fields, options) {
+    model.emit('index-single-start', fields, options);
+  };
+
+  const baseSchema = model.schema._baseSchema;
+  const baseSchemaIndexes = baseSchema ? baseSchema.indexes() : [];
+
+  immediate(function() {
+    // If buffering is off, do this manually.
+    if (options._automatic && !model.collection.collection) {
+      model.collection.addQueue(create, []);
+    } else {
+      create();
+    }
+  });
+
+
+  function create() {
+    if (options._automatic) {
+      if (model.schema.options.autoIndex === false ||
+          (model.schema.options.autoIndex == null && model.db.config.autoIndex === false)) {
+        return done();
+      }
+    }
+
+    const index = indexes.shift();
+    if (!index) {
+      return done();
+    }
+    if (options._automatic && index[1]._autoIndex === false) {
+      return create();
+    }
+
+    if (baseSchemaIndexes.find(i => utils.deepEqual(i, index))) {
+      return create();
+    }
+
+    const indexFields = clone(index[0]);
+    const indexOptions = clone(index[1]);
+
+    delete indexOptions._autoIndex;
+    decorateDiscriminatorIndexOptions(model.schema, indexOptions);
+    applyWriteConcern(model.schema, indexOptions);
+    applySchemaCollation(indexFields, indexOptions, model.schema.options);
+
+    indexSingleStart(indexFields, options);
+
+    if ('background' in options) {
+      indexOptions.background = options.background;
+    }
+
+    if ('toCreate' in options) {
+      if (options.toCreate.length === 0) {
+        return done();
+      }
+    }
+
+    // Just in case `createIndex()` throws a sync error
+    let promise = null;
+    try {
+      promise = model.collection.createIndex(indexFields, indexOptions);
+    } catch (err) {
+      if (!indexError) {
+        indexError = err;
+      }
+      if (!model.$caught) {
+        model.emit('error', err);
+      }
+
+      indexSingleDone(err, indexFields, indexOptions);
+      create();
+      return;
+    }
+
+    promise.then(
+      name => {
+        indexSingleDone(null, indexFields, indexOptions, name);
+        create();
+      },
+      err => {
+        if (!indexError) {
+          indexError = err;
+        }
+        if (!model.$caught) {
+          model.emit('error', err);
+        }
+
+        indexSingleDone(err, indexFields, indexOptions);
+        create();
+      }
+    );
+  }
+}
+
+/**
+ * Schema the model uses.
+ *
+ * @property schema
+ * @static
+ * @api public
+ * @memberOf Model
+ */
+
+Model.schema;
+
+/**
+ * Connection instance the model uses.
+ *
+ * @property db
+ * @static
+ * @api public
+ * @memberOf Model
+ */
+
+Model.db;
+
+/**
+ * Collection the model uses.
+ *
+ * @property collection
+ * @api public
+ * @memberOf Model
+ */
+
+Model.collection;
+
+/**
+ * Internal collection the model uses.
+ *
+ * @property collection
+ * @api private
+ * @memberOf Model
+ */
+Model.$__collection;
+
+/**
+ * Base Mongoose instance the model uses.
+ *
+ * @property base
+ * @api public
+ * @memberOf Model
+ */
+
+Model.base;
+
+/**
+ * Registered discriminators for this model.
+ *
+ * @property discriminators
+ * @api public
+ * @memberOf Model
+ */
+
+Model.discriminators;
+
+/**
+ * Translate any aliases fields/conditions so the final query or document object is pure
+ *
+ * #### Example:
+ *
+ *     await Character.find(Character.translateAliases({
+ *        '名': 'Eddard Stark' // Alias for 'name'
+ *     });
+ *
+ * By default, `translateAliases()` overwrites raw fields with aliased fields.
+ * So if `n` is an alias for `name`, `{ n: 'alias', name: 'raw' }` will resolve to `{ name: 'alias' }`.
+ * However, you can set the `errorOnDuplicates` option to throw an error if there are potentially conflicting paths.
+ * The `translateAliases` option for queries uses `errorOnDuplicates`.
+ *
+ * #### Note:
+ *
+ * Only translate arguments of object type anything else is returned raw
+ *
+ * @param {Object} fields fields/conditions that may contain aliased keys
+ * @param {Boolean} [errorOnDuplicates] if true, throw an error if there's both a key and an alias for that key in `fields`
+ * @return {Object} the translated 'pure' fields/conditions
+ */
+Model.translateAliases = function translateAliases(fields, errorOnDuplicates) {
+  _checkContext(this, 'translateAliases');
+
+  const translate = (key, value) => {
+    let alias;
+    const translated = [];
+    const fieldKeys = key.split('.');
+    let currentSchema = this.schema;
+    for (const i in fieldKeys) {
+      const name = fieldKeys[i];
+      if (currentSchema && currentSchema.aliases[name]) {
+        alias = currentSchema.aliases[name];
+        if (errorOnDuplicates && alias in fields) {
+          throw new MongooseError(`Provided object has both field "${name}" and its alias "${alias}"`);
+        }
+        // Alias found,
+        translated.push(alias);
+      } else {
+        alias = name;
+        // Alias not found, so treat as un-aliased key
+        translated.push(name);
+      }
+
+      // Check if aliased path is a schema
+      if (currentSchema && currentSchema.paths[alias]) {
+        currentSchema = currentSchema.paths[alias].schema;
+      }
+      else
+        currentSchema = null;
+    }
+
+    const translatedKey = translated.join('.');
+    if (fields instanceof Map)
+      fields.set(translatedKey, value);
+    else
+      fields[translatedKey] = value;
+
+    if (translatedKey !== key) {
+      // We'll be using the translated key instead
+      if (fields instanceof Map) {
+        // Delete from map
+        fields.delete(key);
+      } else {
+        // Delete from object
+        delete fields[key]; // We'll be using the translated key instead
+      }
+    }
+    return fields;
+  };
+
+  if (typeof fields === 'object') {
+    // Fields is an object (query conditions or document fields)
+    if (fields instanceof Map) {
+      // A Map was supplied
+      for (const field of new Map(fields)) {
+        fields = translate(field[0], field[1]);
+      }
+    } else {
+      // Infer a regular object was supplied
+      for (const key of Object.keys(fields)) {
+        fields = translate(key, fields[key]);
+        if (key[0] === '$') {
+          if (Array.isArray(fields[key])) {
+            for (const i in fields[key]) {
+              // Recursively translate nested queries
+              fields[key][i] = this.translateAliases(fields[key][i]);
+            }
+          } else {
+            this.translateAliases(fields[key]);
+          }
+        }
+      }
+    }
+
+    return fields;
+  } else {
+    // Don't know typeof fields
+    return fields;
+  }
+};
+
+/**
+ * Deletes the first document that matches `conditions` from the collection.
+ * It returns an object with the property `deletedCount` indicating how many documents were deleted.
+ *
+ * #### Example:
+ *
+ *     await Character.deleteOne({ name: 'Eddard Stark' }); // returns {deletedCount: 1}
+ *
+ * #### Note:
+ *
+ * This function triggers `deleteOne` query hooks. Read the
+ * [middleware docs](https://mongoosejs.com/docs/middleware.html#naming) to learn more.
+ *
+ * @param {Object} conditions
+ * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions())
+ * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object.
+ * @return {Query}
+ * @api public
+ */
+
+Model.deleteOne = function deleteOne(conditions, options) {
+  _checkContext(this, 'deleteOne');
+
+  if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function' || typeof arguments[2] === 'function') {
+    throw new MongooseError('Model.prototype.deleteOne() no longer accepts a callback');
+  }
+
+  const mq = new this.Query({}, {}, this, this.$__collection);
+  mq.setOptions(options);
+
+  return mq.deleteOne(conditions);
+};
+
+/**
+ * Deletes all of the documents that match `conditions` from the collection.
+ * It returns an object with the property `deletedCount` containing the number of documents deleted.
+ *
+ * #### Example:
+ *
+ *     await Character.deleteMany({ name: /Stark/, age: { $gte: 18 } }); // returns {deletedCount: x} where x is the number of documents deleted.
+ *
+ * #### Note:
+ *
+ * This function triggers `deleteMany` query hooks. Read the
+ * [middleware docs](https://mongoosejs.com/docs/middleware.html#naming) to learn more.
+ *
+ * @param {Object} conditions
+ * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions())
+ * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object.
+ * @return {Query}
+ * @api public
+ */
+
+Model.deleteMany = function deleteMany(conditions, options) {
+  _checkContext(this, 'deleteMany');
+
+  if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function' || typeof arguments[2] === 'function') {
+    throw new MongooseError('Model.deleteMany() no longer accepts a callback');
+  }
+
+  const mq = new this.Query({}, {}, this, this.$__collection);
+  mq.setOptions(options);
+
+  return mq.deleteMany(conditions);
+};
+
+/**
+ * Finds documents.
+ *
+ * Mongoose casts the `filter` to match the model's schema before the command is sent.
+ * See our [query casting tutorial](https://mongoosejs.com/docs/tutorials/query_casting.html) for
+ * more information on how Mongoose casts `filter`.
+ *
+ * #### Example:
+ *
+ *     // find all documents
+ *     await MyModel.find({});
+ *
+ *     // find all documents named john and at least 18
+ *     await MyModel.find({ name: 'john', age: { $gte: 18 } }).exec();
+ *
+ *     // executes, name LIKE john and only selecting the "name" and "friends" fields
+ *     await MyModel.find({ name: /john/i }, 'name friends').exec();
+ *
+ *     // passing options
+ *     await MyModel.find({ name: /john/i }, null, { skip: 10 }).exec();
+ *
+ * @param {Object|ObjectId} filter
+ * @param {Object|String|String[]} [projection] optional fields to return, see [`Query.prototype.select()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.select())
+ * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions())
+ * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object.
+ * @return {Query}
+ * @see field selection https://mongoosejs.com/docs/api/query.html#Query.prototype.select()
+ * @see query casting https://mongoosejs.com/docs/tutorials/query_casting.html
+ * @api public
+ */
+
+Model.find = function find(conditions, projection, options) {
+  _checkContext(this, 'find');
+  if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function' || typeof arguments[2] === 'function' || typeof arguments[3] === 'function') {
+    throw new MongooseError('Model.find() no longer accepts a callback');
+  }
+
+  const mq = new this.Query({}, {}, this, this.$__collection);
+  mq.select(projection);
+  mq.setOptions(options);
+
+  return mq.find(conditions);
+};
+
+/**
+ * Finds a single document by its _id field. `findById(id)` is almost*
+ * equivalent to `findOne({ _id: id })`. If you want to query by a document's
+ * `_id`, use `findById()` instead of `findOne()`.
+ *
+ * The `id` is cast based on the Schema before sending the command.
+ *
+ * This function triggers the following middleware.
+ *
+ * - `findOne()`
+ *
+ * \* Except for how it treats `undefined`. If you use `findOne()`, you'll see
+ * that `findOne(undefined)` and `findOne({ _id: undefined })` are equivalent
+ * to `findOne({})` and return arbitrary documents. However, mongoose
+ * translates `findById(undefined)` into `findOne({ _id: null })`.
+ *
+ * #### Example:
+ *
+ *     // Find the adventure with the given `id`, or `null` if not found
+ *     await Adventure.findById(id).exec();
+ *
+ *     // select only the adventures name and length
+ *     await Adventure.findById(id, 'name length').exec();
+ *
+ * @param {Any} id value of `_id` to query by
+ * @param {Object|String|String[]} [projection] optional fields to return, see [`Query.prototype.select()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.select())
+ * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions())
+ * @return {Query}
+ * @see field selection https://mongoosejs.com/docs/api/query.html#Query.prototype.select()
+ * @see lean queries https://mongoosejs.com/docs/tutorials/lean.html
+ * @see findById in Mongoose https://masteringjs.io/tutorials/mongoose/find-by-id
+ * @api public
+ */
+
+Model.findById = function findById(id, projection, options) {
+  _checkContext(this, 'findById');
+  if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function' || typeof arguments[2] === 'function') {
+    throw new MongooseError('Model.findById() no longer accepts a callback');
+  }
+
+  if (typeof id === 'undefined') {
+    id = null;
+  }
+
+  return this.findOne({ _id: id }, projection, options);
+};
+
+/**
+ * Finds one document.
+ *
+ * The `conditions` are cast to their respective SchemaTypes before the command is sent.
+ *
+ * *Note:* `conditions` is optional, and if `conditions` is null or undefined,
+ * mongoose will send an empty `findOne` command to MongoDB, which will return
+ * an arbitrary document. If you're querying by `_id`, use `findById()` instead.
+ *
+ * #### Example:
+ *
+ *     // Find one adventure whose `country` is 'Croatia', otherwise `null`
+ *     await Adventure.findOne({ country: 'Croatia' }).exec();
+ *
+ *     // Model.findOne() no longer accepts a callback
+ *
+ *     // Select only the adventures name and length
+ *     await Adventure.findOne({ country: 'Croatia' }, 'name length').exec();
+ *
+ * @param {Object} [conditions]
+ * @param {Object|String|String[]} [projection] optional fields to return, see [`Query.prototype.select()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.select())
+ * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions())
+ * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object.
+ * @return {Query}
+ * @see field selection https://mongoosejs.com/docs/api/query.html#Query.prototype.select()
+ * @see lean queries https://mongoosejs.com/docs/tutorials/lean.html
+ * @api public
+ */
+
+Model.findOne = function findOne(conditions, projection, options) {
+  _checkContext(this, 'findOne');
+  if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function' || typeof arguments[2] === 'function') {
+    throw new MongooseError('Model.findOne() no longer accepts a callback');
+  }
+
+  const mq = new this.Query({}, {}, this, this.$__collection);
+  mq.select(projection);
+  mq.setOptions(options);
+
+  return mq.findOne(conditions);
+};
+
+/**
+ * Estimates the number of documents in the MongoDB collection. Faster than
+ * using `countDocuments()` for large collections because
+ * `estimatedDocumentCount()` uses collection metadata rather than scanning
+ * the entire collection.
+ *
+ * #### Example:
+ *
+ *     const numAdventures = await Adventure.estimatedDocumentCount();
+ *
+ * @param {Object} [options]
+ * @return {Query}
+ * @api public
+ */
+
+Model.estimatedDocumentCount = function estimatedDocumentCount(options) {
+  _checkContext(this, 'estimatedDocumentCount');
+
+  const mq = new this.Query({}, {}, this, this.$__collection);
+
+  return mq.estimatedDocumentCount(options);
+};
+
+/**
+ * Counts number of documents matching `filter` in a database collection.
+ *
+ * #### Example:
+ *
+ *     Adventure.countDocuments({ type: 'jungle' }, function (err, count) {
+ *       console.log('there are %d jungle adventures', count);
+ *     });
+ *
+ * If you want to count all documents in a large collection,
+ * use the [`estimatedDocumentCount()` function](https://mongoosejs.com/docs/api/model.html#Model.estimatedDocumentCount())
+ * instead. If you call `countDocuments({})`, MongoDB will always execute
+ * a full collection scan and **not** use any indexes.
+ *
+ * The `countDocuments()` function is similar to `count()`, but there are a
+ * [few operators that `countDocuments()` does not support](https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#countDocuments).
+ * Below are the operators that `count()` supports but `countDocuments()` does not,
+ * and the suggested replacement:
+ *
+ * - `$where`: [`$expr`](https://www.mongodb.com/docs/manual/reference/operator/query/expr/)
+ * - `$near`: [`$geoWithin`](https://www.mongodb.com/docs/manual/reference/operator/query/geoWithin/) with [`$center`](https://www.mongodb.com/docs/manual/reference/operator/query/center/#op._S_center)
+ * - `$nearSphere`: [`$geoWithin`](https://www.mongodb.com/docs/manual/reference/operator/query/geoWithin/) with [`$centerSphere`](https://www.mongodb.com/docs/manual/reference/operator/query/centerSphere/#op._S_centerSphere)
+ *
+ * @param {Object} filter
+ * @return {Query}
+ * @api public
+ */
+
+Model.countDocuments = function countDocuments(conditions, options) {
+  _checkContext(this, 'countDocuments');
+  if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function' || typeof arguments[2] === 'function') {
+    throw new MongooseError('Model.countDocuments() no longer accepts a callback');
+  }
+
+  const mq = new this.Query({}, {}, this, this.$__collection);
+  if (options != null) {
+    mq.setOptions(options);
+  }
+
+  return mq.countDocuments(conditions);
+};
+
+
+/**
+ * Creates a Query for a `distinct` operation.
+ *
+ * #### Example:
+ *
+ *     const query = Link.distinct('url');
+ *     query.exec();
+ *
+ * @param {String} field
+ * @param {Object} [conditions] optional
+ * @param {Object} [options] optional
+ * @return {Query}
+ * @api public
+ */
+
+Model.distinct = function distinct(field, conditions, options) {
+  _checkContext(this, 'distinct');
+  if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function' || typeof arguments[2] === 'function') {
+    throw new MongooseError('Model.distinct() no longer accepts a callback');
+  }
+
+  const mq = new this.Query({}, {}, this, this.$__collection);
+  if (options != null) {
+    mq.setOptions(options);
+  }
+
+  return mq.distinct(field, conditions);
+};
+
+/**
+ * Creates a Query, applies the passed conditions, and returns the Query.
+ *
+ * For example, instead of writing:
+ *
+ *     User.find({ age: { $gte: 21, $lte: 65 } });
+ *
+ * we can instead write:
+ *
+ *     User.where('age').gte(21).lte(65).exec();
+ *
+ * Since the Query class also supports `where` you can continue chaining
+ *
+ *     User
+ *     .where('age').gte(21).lte(65)
+ *     .where('name', /^b/i)
+ *     ... etc
+ *
+ * @param {String} path
+ * @param {Object} [val] optional value
+ * @return {Query}
+ * @api public
+ */
+
+Model.where = function where(path, val) {
+  _checkContext(this, 'where');
+
+  void val; // eslint
+  const mq = new this.Query({}, {}, this, this.$__collection).find({});
+  return mq.where.apply(mq, arguments);
+};
+
+/**
+ * Creates a `Query` and specifies a `$where` condition.
+ *
+ * Sometimes you need to query for things in mongodb using a JavaScript expression. You can do so via `find({ $where: javascript })`, or you can use the mongoose shortcut method $where via a Query chain or from your mongoose Model.
+ *
+ *     Blog.$where('this.username.indexOf("val") !== -1').exec(function (err, docs) {});
+ *
+ * @param {String|Function} argument is a javascript string or anonymous function
+ * @method $where
+ * @memberOf Model
+ * @return {Query}
+ * @see Query.$where https://mongoosejs.com/docs/api/query.html#Query.prototype.$where
+ * @api public
+ */
+
+Model.$where = function $where() {
+  _checkContext(this, '$where');
+
+  const mq = new this.Query({}, {}, this, this.$__collection).find({});
+  return mq.$where.apply(mq, arguments);
+};
+
+/**
+ * Issues a mongodb findOneAndUpdate command.
+ *
+ * Finds a matching document, updates it according to the `update` arg, passing any `options`. A Query object is returned.
+ *
+ * #### Example:
+ *
+ *     A.findOneAndUpdate(conditions, update, options)  // returns Query
+ *     A.findOneAndUpdate(conditions, update)           // returns Query
+ *     A.findOneAndUpdate()                             // returns Query
+ *
+ * #### Note:
+ *
+ * All top level update keys which are not `atomic` operation names are treated as set operations:
+ *
+ * #### Example:
+ *
+ *     const query = { name: 'borne' };
+ *     Model.findOneAndUpdate(query, { name: 'jason bourne' }, options)
+ *
+ *     // is sent as
+ *     Model.findOneAndUpdate(query, { $set: { name: 'jason bourne' }}, options)
+ *
+ * #### Note:
+ *
+ * `findOneAndX` and `findByIdAndX` functions support limited validation that
+ * you can enable by setting the `runValidators` option.
+ *
+ * If you need full-fledged validation, use the traditional approach of first
+ * retrieving the document.
+ *
+ *     const doc = await Model.findById(id);
+ *     doc.name = 'jason bourne';
+ *     await doc.save();
+ *
+ * @param {Object} [conditions]
+ * @param {Object} [update]
+ * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions())
+ * @param {String} [options.returnDocument='before'] Has two possible values, `'before'` and `'after'`. By default, it will return the document before the update was applied.
+ * @param {Object} [options.lean] if truthy, mongoose will return the document as a plain JavaScript object rather than a mongoose document. See [`Query.lean()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.lean()) and [the Mongoose lean tutorial](https://mongoosejs.com/docs/tutorials/lean.html).
+ * @param {ClientSession} [options.session=null] The session associated with this query. See [transactions docs](https://mongoosejs.com/docs/transactions.html).
+ * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict)
+ * @param {Boolean} [options.timestamps=null] If set to `false` and [schema-level timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this update. Note that this allows you to overwrite timestamps. Does nothing if schema-level timestamps are not set.
+ * @param {Boolean} [options.upsert=false] if true, and no documents found, insert a new document
+ * @param {Object|String|String[]} [options.projection=null] optional fields to return, see [`Query.prototype.select()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.select())
+ * @param {Boolean} [options.new=false] if true, return the modified document rather than the original
+ * @param {Object|String} [options.fields] Field selection. Equivalent to `.select(fields).findOneAndUpdate()`
+ * @param {Number} [options.maxTimeMS] puts a time limit on the query - requires mongodb >= 2.6.0
+ * @param {Object|String} [options.sort] if multiple docs are found by the conditions, sets the sort order to choose which doc to update.
+ * @param {Boolean} [options.runValidators] if true, runs [update validators](https://mongoosejs.com/docs/validation.html#update-validators) on this command. Update validators validate the update operation against the model's schema
+ * @param {Boolean} [options.setDefaultsOnInsert=true] If `setDefaultsOnInsert` and `upsert` are true, mongoose will apply the [defaults](https://mongoosejs.com/docs/defaults.html) specified in the model's schema if a new document is created
+ * @param {Boolean} [options.includeResultMetadata] if true, returns the [raw result from the MongoDB driver](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/ModifyResult.html)
+ * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object.
+ * @param {Boolean} [options.overwriteDiscriminatorKey=false] Mongoose removes discriminator key updates from `update` by default, set `overwriteDiscriminatorKey` to `true` to allow updating the discriminator key
+ * @return {Query}
+ * @see Tutorial https://mongoosejs.com/docs/tutorials/findoneandupdate.html
+ * @see mongodb https://www.mongodb.com/docs/manual/reference/command/findAndModify/
+ * @api public
+ */
+
+Model.findOneAndUpdate = function(conditions, update, options) {
+  _checkContext(this, 'findOneAndUpdate');
+  if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function' || typeof arguments[2] === 'function' || typeof arguments[3] === 'function') {
+    throw new MongooseError('Model.findOneAndUpdate() no longer accepts a callback');
+  }
+
+  if (arguments.length === 1) {
+    update = conditions;
+    conditions = null;
+    options = null;
+  }
+
+  let fields;
+  if (options) {
+    fields = options.fields || options.projection;
+  }
+
+  update = clone(update, {
+    depopulate: true,
+    _isNested: true
+  });
+
+  decorateUpdateWithVersionKey(update, options, this.schema.options.versionKey);
+
+  const mq = new this.Query({}, {}, this, this.$__collection);
+  mq.select(fields);
+
+  return mq.findOneAndUpdate(conditions, update, options);
+};
+
+/**
+ * Issues a mongodb findOneAndUpdate command by a document's _id field.
+ * `findByIdAndUpdate(id, ...)` is equivalent to `findOneAndUpdate({ _id: id }, ...)`.
+ *
+ * Finds a matching document, updates it according to the `update` arg,
+ * passing any `options`, and returns the found document (if any).
+ *
+ * This function triggers the following middleware.
+ *
+ * - `findOneAndUpdate()`
+ *
+ * #### Example:
+ *
+ *     A.findByIdAndUpdate(id, update, options)  // returns Query
+ *     A.findByIdAndUpdate(id, update)           // returns Query
+ *     A.findByIdAndUpdate()                     // returns Query
+ *
+ * #### Note:
+ *
+ * All top level update keys which are not `atomic` operation names are treated as set operations:
+ *
+ * #### Example:
+ *
+ *     Model.findByIdAndUpdate(id, { name: 'jason bourne' }, options)
+ *
+ *     // is sent as
+ *     Model.findByIdAndUpdate(id, { $set: { name: 'jason bourne' }}, options)
+ *
+ * #### Note:
+ *
+ * `findOneAndX` and `findByIdAndX` functions support limited validation. You can
+ * enable validation by setting the `runValidators` option.
+ *
+ * If you need full-fledged validation, use the traditional approach of first
+ * retrieving the document.
+ *
+ *     const doc = await Model.findById(id)
+ *     doc.name = 'jason bourne';
+ *     await doc.save();
+ *
+ * @param {Object|Number|String} id value of `_id` to query by
+ * @param {Object} [update]
+ * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions())
+ * @param {String} [options.returnDocument='before'] Has two possible values, `'before'` and `'after'`. By default, it will return the document before the update was applied.
+ * @param {Object} [options.lean] if truthy, mongoose will return the document as a plain JavaScript object rather than a mongoose document. See [`Query.lean()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.lean()) and [the Mongoose lean tutorial](https://mongoosejs.com/docs/tutorials/lean.html).
+ * @param {ClientSession} [options.session=null] The session associated with this query. See [transactions docs](https://mongoosejs.com/docs/transactions.html).
+ * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict)
+ * @param {Boolean} [options.timestamps=null] If set to `false` and [schema-level timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this update. Note that this allows you to overwrite timestamps. Does nothing if schema-level timestamps are not set.
+ * @param {Object|String} [options.sort] if multiple docs are found by the conditions, sets the sort order to choose which doc to update.
+ * @param {Boolean} [options.runValidators] if true, runs [update validators](https://mongoosejs.com/docs/validation.html#update-validators) on this command. Update validators validate the update operation against the model's schema
+ * @param {Boolean} [options.setDefaultsOnInsert=true] If `setDefaultsOnInsert` and `upsert` are true, mongoose will apply the [defaults](https://mongoosejs.com/docs/defaults.html) specified in the model's schema if a new document is created
+ * @param {Boolean} [options.includeResultMetadata] if true, returns the full [ModifyResult from the MongoDB driver](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/ModifyResult.html) rather than just the document
+ * @param {Boolean} [options.upsert=false] if true, and no documents found, insert a new document
+ * @param {Boolean} [options.new=false] if true, return the modified document rather than the original
+ * @param {Object|String} [options.select] sets the document fields to return.
+ * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object.
+ * @param {Boolean} [options.overwriteDiscriminatorKey=false] Mongoose removes discriminator key updates from `update` by default, set `overwriteDiscriminatorKey` to `true` to allow updating the discriminator key
+ * @return {Query}
+ * @see Model.findOneAndUpdate https://mongoosejs.com/docs/api/model.html#Model.findOneAndUpdate()
+ * @see mongodb https://www.mongodb.com/docs/manual/reference/command/findAndModify/
+ * @api public
+ */
+
+Model.findByIdAndUpdate = function(id, update, options) {
+  _checkContext(this, 'findByIdAndUpdate');
+  if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function' || typeof arguments[2] === 'function' || typeof arguments[3] === 'function') {
+    throw new MongooseError('Model.findByIdAndUpdate() no longer accepts a callback');
+  }
+
+  // if a model is passed in instead of an id
+  if (id instanceof Document) {
+    id = id._doc._id;
+  }
+
+  return this.findOneAndUpdate.call(this, { _id: id }, update, options);
+};
+
+/**
+ * Issue a MongoDB `findOneAndDelete()` command.
+ *
+ * Finds a matching document, removes it, and returns the found document (if any).
+ *
+ * This function triggers the following middleware.
+ *
+ * - `findOneAndDelete()`
+ *
+ * #### Example:
+ *
+ *     A.findOneAndDelete(conditions, options)  // return Query
+ *     A.findOneAndDelete(conditions) // returns Query
+ *     A.findOneAndDelete()           // returns Query
+ *
+ * `findOneAndX` and `findByIdAndX` functions support limited validation. You can
+ * enable validation by setting the `runValidators` option.
+ *
+ * If you need full-fledged validation, use the traditional approach of first
+ * retrieving the document.
+ *
+ *     const doc = await Model.findById(id)
+ *     doc.name = 'jason bourne';
+ *     await doc.save();
+ *
+ * @param {Object} conditions
+ * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions())
+ * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict)
+ * @param {Object|String|String[]} [options.projection=null] optional fields to return, see [`Query.prototype.select()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.select())
+ * @param {ClientSession} [options.session=null] The session associated with this query. See [transactions docs](https://mongoosejs.com/docs/transactions.html).
+ * @param {Boolean} [options.includeResultMetadata] if true, returns the full [ModifyResult from the MongoDB driver](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/ModifyResult.html) rather than just the document
+ * @param {Object|String} [options.sort] if multiple docs are found by the conditions, sets the sort order to choose which doc to update.
+ * @param {Object|String} [options.select] sets the document fields to return.
+ * @param {Number} [options.maxTimeMS] puts a time limit on the query - requires mongodb >= 2.6.0
+ * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object.
+ * @return {Query}
+ * @api public
+ */
+
+Model.findOneAndDelete = function(conditions, options) {
+  _checkContext(this, 'findOneAndDelete');
+
+  if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function' || typeof arguments[2] === 'function') {
+    throw new MongooseError('Model.findOneAndDelete() no longer accepts a callback');
+  }
+
+  let fields;
+  if (options) {
+    fields = options.select;
+    options.select = undefined;
+  }
+
+  const mq = new this.Query({}, {}, this, this.$__collection);
+  mq.select(fields);
+
+  return mq.findOneAndDelete(conditions, options);
+};
+
+/**
+ * Issue a MongoDB `findOneAndDelete()` command by a document's _id field.
+ * In other words, `findByIdAndDelete(id)` is a shorthand for
+ * `findOneAndDelete({ _id: id })`.
+ *
+ * This function triggers the following middleware.
+ *
+ * - `findOneAndDelete()`
+ *
+ * @param {Object|Number|String} id value of `_id` to query by
+ * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions())
+ * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict)
+ * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object.
+ * @return {Query}
+ * @see Model.findOneAndDelete https://mongoosejs.com/docs/api/model.html#Model.findOneAndDelete()
+ * @see mongodb https://www.mongodb.com/docs/manual/reference/command/findAndModify/
+ */
+
+Model.findByIdAndDelete = function(id, options) {
+  _checkContext(this, 'findByIdAndDelete');
+
+  if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function' || typeof arguments[2] === 'function') {
+    throw new MongooseError('Model.findByIdAndDelete() no longer accepts a callback');
+  }
+
+  return this.findOneAndDelete({ _id: id }, options);
+};
+
+/**
+ * Issue a MongoDB `findOneAndReplace()` command.
+ *
+ * Finds a matching document, replaces it with the provided doc, and returns the document.
+ *
+ * This function triggers the following query middleware.
+ *
+ * - `findOneAndReplace()`
+ *
+ * #### Example:
+ *
+ *     A.findOneAndReplace(filter, replacement, options)  // return Query
+ *     A.findOneAndReplace(filter, replacement) // returns Query
+ *     A.findOneAndReplace()                    // returns Query
+ *
+ * @param {Object} filter Replace the first document that matches this filter
+ * @param {Object} [replacement] Replace with this document
+ * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions())
+ * @param {String} [options.returnDocument='before'] Has two possible values, `'before'` and `'after'`. By default, it will return the document before the update was applied.
+ * @param {Object} [options.lean] if truthy, mongoose will return the document as a plain JavaScript object rather than a mongoose document. See [`Query.lean()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.lean()) and [the Mongoose lean tutorial](https://mongoosejs.com/docs/tutorials/lean.html).
+ * @param {ClientSession} [options.session=null] The session associated with this query. See [transactions docs](https://mongoosejs.com/docs/transactions.html).
+ * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict)
+ * @param {Boolean} [options.timestamps=null] If set to `false` and [schema-level timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this update. Note that this allows you to overwrite timestamps. Does nothing if schema-level timestamps are not set.
+ * @param {Object|String|String[]} [options.projection=null] optional fields to return, see [`Query.prototype.select()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.select())
+ * @param {Object|String} [options.sort] if multiple docs are found by the conditions, sets the sort order to choose which doc to update.
+ * @param {Boolean} [options.includeResultMetadata] if true, returns the full [ModifyResult from the MongoDB driver](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/ModifyResult.html) rather than just the document
+ * @param {Object|String} [options.select] sets the document fields to return.
+ * @param {Number} [options.maxTimeMS] puts a time limit on the query - requires mongodb >= 2.6.0
+ * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object.
+ * @return {Query}
+ * @api public
+ */
+
+Model.findOneAndReplace = function(filter, replacement, options) {
+  _checkContext(this, 'findOneAndReplace');
+
+  if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function' || typeof arguments[2] === 'function' || typeof arguments[3] === 'function') {
+    throw new MongooseError('Model.findOneAndReplace() no longer accepts a callback');
+  }
+
+  let fields;
+  if (options) {
+    fields = options.select;
+    options.select = undefined;
+  }
+
+  const mq = new this.Query({}, {}, this, this.$__collection);
+  mq.select(fields);
+
+  return mq.findOneAndReplace(filter, replacement, options);
+};
+
+/**
+ * Shortcut for saving one or more documents to the database.
+ * `MyModel.create(docs)` does `new MyModel(doc).save()` for every doc in
+ * docs.
+ *
+ * This function triggers the following middleware.
+ *
+ * - `save()`
+ *
+ * #### Example:
+ *
+ *     // Insert one new `Character` document
+ *     await Character.create({ name: 'Jean-Luc Picard' });
+ *
+ *     // Insert multiple new `Character` documents
+ *     await Character.create([{ name: 'Will Riker' }, { name: 'Geordi LaForge' }]);
+ *
+ *     // Create a new character within a transaction. Note that you **must**
+ *     // pass an array as the first parameter to `create()` if you want to
+ *     // specify options.
+ *     await Character.create([{ name: 'Jean-Luc Picard' }], { session });
+ *
+ * @param {Array|Object} docs Documents to insert, as a spread or array
+ * @param {Object} [options] Options passed down to `save()`. To specify `options`, `docs` **must** be an array, not a spread. See [Model.save](https://mongoosejs.com/docs/api/model.html#Model.prototype.save()) for available options.
+ * @param {Boolean} [options.ordered] saves the docs in series rather than parallel.
+ * @param {Boolean} [options.aggregateErrors] Aggregate Errors instead of throwing the first one that occurs. Default: false
+ * @return {Promise}
+ * @api public
+ */
+
+Model.create = async function create(doc, options) {
+  if (typeof options === 'function' ||
+      typeof arguments[2] === 'function') {
+    throw new MongooseError('Model.create() no longer accepts a callback');
+  }
+
+  _checkContext(this, 'create');
+
+  let args;
+  const discriminatorKey = this.schema.options.discriminatorKey;
+
+  if (Array.isArray(doc)) {
+    args = doc;
+    options = options != null && typeof options === 'object' ? options : {};
+  } else {
+    const last = arguments[arguments.length - 1];
+    options = {};
+    const hasCallback = typeof last === 'function' ||
+      typeof options === 'function' ||
+      typeof arguments[2] === 'function';
+    if (hasCallback) {
+      throw new MongooseError('Model.create() no longer accepts a callback');
+    } else {
+      args = [...arguments];
+      // For backwards compatibility with 6.x, because of gh-5061 Mongoose 6.x and
+      // older would treat a falsy last arg as a callback. We don't want to throw
+      // an error here, because it would look strange if `Test.create({}, void 0)`
+      // threw a callback error. But we also don't want to create an unnecessary document.
+      if (args.length > 1 && !last) {
+        args.pop();
+      }
+    }
+
+    if (args.length === 2 &&
+        args[0] != null &&
+        args[1] != null &&
+        args[0].session == null &&
+        last &&
+        getConstructorName(last.session) === 'ClientSession' &&
+        !this.schema.path('session')) {
+      // Probably means the user is running into the common mistake of trying
+      // to use a spread to specify options, see gh-7535
+      utils.warn('WARNING: to pass a `session` to `Model.create()` in ' +
+        'Mongoose, you **must** pass an array as the first argument. See: ' +
+        'https://mongoosejs.com/docs/api/model.html#Model.create()');
+    }
+  }
+
+  if (args.length === 0) {
+    return Array.isArray(doc) ? [] : null;
+  }
+  let res = [];
+  const immediateError = typeof options.aggregateErrors === 'boolean' ? !options.aggregateErrors : true;
+
+  delete options.aggregateErrors; // dont pass on the option to "$save"
+
+  if (options.ordered) {
+    for (let i = 0; i < args.length; i++) {
+      try {
+        const doc = args[i];
+        const Model = this.discriminators && doc[discriminatorKey] != null ?
+          this.discriminators[doc[discriminatorKey]] || getDiscriminatorByValue(this.discriminators, doc[discriminatorKey]) :
+          this;
+        if (Model == null) {
+          throw new MongooseError(`Discriminator "${doc[discriminatorKey]}" not ` +
+          `found for model "${this.modelName}"`);
+        }
+        let toSave = doc;
+        if (!(toSave instanceof Model)) {
+          toSave = new Model(toSave);
+        }
+
+        await toSave.$save(options);
+        res.push(toSave);
+      } catch (err) {
+        if (!immediateError) {
+          res.push(err);
+        } else {
+          throw err;
+        }
+      }
+    }
+    return res;
+  } else if (!immediateError) {
+    res = await Promise.allSettled(args.map(async doc => {
+      const Model = this.discriminators && doc[discriminatorKey] != null ?
+        this.discriminators[doc[discriminatorKey]] || getDiscriminatorByValue(this.discriminators, doc[discriminatorKey]) :
+        this;
+      if (Model == null) {
+        throw new MongooseError(`Discriminator "${doc[discriminatorKey]}" not ` +
+            `found for model "${this.modelName}"`);
+      }
+      let toSave = doc;
+
+      if (!(toSave instanceof Model)) {
+        toSave = new Model(toSave);
+      }
+
+      await toSave.$save(options);
+
+      return toSave;
+    }));
+    res = res.map(result => result.status === 'fulfilled' ? result.value : result.reason);
+  } else {
+    let firstError = null;
+    res = await Promise.all(args.map(async doc => {
+      const Model = this.discriminators && doc[discriminatorKey] != null ?
+        this.discriminators[doc[discriminatorKey]] || getDiscriminatorByValue(this.discriminators, doc[discriminatorKey]) :
+        this;
+      if (Model == null) {
+        throw new MongooseError(`Discriminator "${doc[discriminatorKey]}" not ` +
+            `found for model "${this.modelName}"`);
+      }
+      try {
+        let toSave = doc;
+
+        if (!(toSave instanceof Model)) {
+          toSave = new Model(toSave);
+        }
+
+        await toSave.$save(options);
+
+        return toSave;
+      } catch (err) {
+        if (!firstError) {
+          firstError = err;
+        }
+      }
+    }));
+    if (firstError) {
+      throw firstError;
+    }
+  }
+
+
+  if (!Array.isArray(doc) && args.length === 1) {
+    return res[0];
+  }
+
+  return res;
+};
+
+/**
+ * _Requires a replica set running MongoDB >= 3.6.0._ Watches the
+ * underlying collection for changes using
+ * [MongoDB change streams](https://www.mongodb.com/docs/manual/changeStreams/).
+ *
+ * This function does **not** trigger any middleware. In particular, it
+ * does **not** trigger aggregate middleware.
+ *
+ * The ChangeStream object is an event emitter that emits the following events:
+ *
+ * - 'change': A change occurred, see below example
+ * - 'error': An unrecoverable error occurred. In particular, change streams currently error out if they lose connection to the replica set primary. Follow [this GitHub issue](https://github.com/Automattic/mongoose/issues/6799) for updates.
+ * - 'end': Emitted if the underlying stream is closed
+ * - 'close': Emitted if the underlying stream is closed
+ *
+ * #### Example:
+ *
+ *     const doc = await Person.create({ name: 'Ned Stark' });
+ *     const changeStream = Person.watch().on('change', change => console.log(change));
+ *     // Will print from the above `console.log()`:
+ *     // { _id: { _data: ... },
+ *     //   operationType: 'delete',
+ *     //   ns: { db: 'mydb', coll: 'Person' },
+ *     //   documentKey: { _id: 5a51b125c5500f5aa094c7bd } }
+ *     await doc.deleteOne();
+ *
+ * @param {Array} [pipeline]
+ * @param {Object} [options] see the [mongodb driver options](https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#watch)
+ * @param {Boolean} [options.hydrate=false] if true and `fullDocument: 'updateLookup'` is set, Mongoose will automatically hydrate `fullDocument` into a fully fledged Mongoose document
+ * @return {ChangeStream} mongoose-specific change stream wrapper, inherits from EventEmitter
+ * @api public
+ */
+
+Model.watch = function(pipeline, options) {
+  _checkContext(this, 'watch');
+
+  const changeStreamThunk = cb => {
+    pipeline = pipeline || [];
+    prepareDiscriminatorPipeline(pipeline, this.schema, 'fullDocument');
+    if (this.$__collection.buffer) {
+      this.$__collection.addQueue(() => {
+        if (this.closed) {
+          return;
+        }
+        const driverChangeStream = this.$__collection.watch(pipeline, options);
+        cb(null, driverChangeStream);
+      });
+    } else {
+      const driverChangeStream = this.$__collection.watch(pipeline, options);
+      cb(null, driverChangeStream);
+    }
+  };
+
+  options = options || {};
+  options.model = this;
+
+  return new ChangeStream(changeStreamThunk, pipeline, options);
+};
+
+/**
+ * _Requires MongoDB >= 3.6.0._ Starts a [MongoDB session](https://www.mongodb.com/docs/manual/release-notes/3.6/#client-sessions)
+ * for benefits like causal consistency, [retryable writes](https://www.mongodb.com/docs/manual/core/retryable-writes/),
+ * and [transactions](https://thecodebarbarian.com/a-node-js-perspective-on-mongodb-4-transactions.html).
+ *
+ * Calling `MyModel.startSession()` is equivalent to calling `MyModel.db.startSession()`.
+ *
+ * This function does not trigger any middleware.
+ *
+ * #### Example:
+ *
+ *     const session = await Person.startSession();
+ *     let doc = await Person.findOne({ name: 'Ned Stark' }, null, { session });
+ *     await doc.deleteOne();
+ *     // `doc` will always be null, even if reading from a replica set
+ *     // secondary. Without causal consistency, it is possible to
+ *     // get a doc back from the below query if the query reads from a
+ *     // secondary that is experiencing replication lag.
+ *     doc = await Person.findOne({ name: 'Ned Stark' }, null, { session, readPreference: 'secondary' });
+ *
+ * @param {Object} [options] see the [mongodb driver options](https://mongodb.github.io/node-mongodb-native/4.9/classes/MongoClient.html#startSession)
+ * @param {Boolean} [options.causalConsistency=true] set to false to disable causal consistency
+ * @return {Promise<ClientSession>} promise that resolves to a MongoDB driver `ClientSession`
+ * @api public
+ */
+
+Model.startSession = function() {
+  _checkContext(this, 'startSession');
+
+  return this.db.startSession.apply(this.db, arguments);
+};
+
+/**
+ * Shortcut for validating an array of documents and inserting them into
+ * MongoDB if they're all valid. This function is faster than `.create()`
+ * because it only sends one operation to the server, rather than one for each
+ * document.
+ *
+ * Mongoose always validates each document **before** sending `insertMany`
+ * to MongoDB. So if one document has a validation error, no documents will
+ * be saved, unless you set
+ * [the `ordered` option to false](https://www.mongodb.com/docs/manual/reference/method/db.collection.insertMany/#error-handling).
+ *
+ * This function does **not** trigger save middleware.
+ *
+ * This function triggers the following middleware.
+ *
+ * - `insertMany()`
+ *
+ * #### Example:
+ *
+ *     const docs = await Movies.insertMany([
+ *       { name: 'Star Wars' },
+ *       { name: 'The Empire Strikes Back' }
+ *     ]);
+ *     docs[0].name; // 'Star Wars'
+ *
+ *     // Return raw result from MongoDB
+ *     const result = await Movies.insertMany([
+ *       { name: 'Star Wars' },
+ *       { name: 'The Empire Strikes Back' }
+ *     ], { rawResult: true });
+ *
+ * @param {Array|Object|*} doc(s)
+ * @param {Object} [options] see the [mongodb driver options](https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#insertMany)
+ * @param {Boolean} [options.ordered=true] if true, will fail fast on the first error encountered. If false, will insert all the documents it can and report errors later. An `insertMany()` with `ordered = false` is called an "unordered" `insertMany()`.
+ * @param {Boolean} [options.rawResult=false] if false, the returned promise resolves to the documents that passed mongoose document validation. If `true`, will return the [raw result from the MongoDB driver](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/InsertManyResult.html) with a `mongoose` property that contains `validationErrors` and `results` if this is an unordered `insertMany`.
+ * @param {Boolean} [options.lean=false] if `true`, skips hydrating the documents. This means Mongoose will **not** cast, validate, or apply defaults to any of the documents passed to `insertMany()`. This option is useful if you need the extra performance, but comes with data integrity risk. Consider using with [`castObject()`](https://mongoosejs.com/docs/api/model.html#Model.castObject()) and [`applyDefaults()`](https://mongoosejs.com/docs/api/model.html#Model.applyDefaults()).
+ * @param {Number} [options.limit=null] this limits the number of documents being processed (validation/casting) by mongoose in parallel, this does **NOT** send the documents in batches to MongoDB. Use this option if you're processing a large number of documents and your app is running out of memory.
+ * @param {String|Object|Array} [options.populate=null] populates the result documents. This option is a no-op if `rawResult` is set.
+ * @param {Boolean} [options.throwOnValidationError=false] If true and `ordered: false`, throw an error if one of the operations failed validation, but all valid operations completed successfully.
+ * @return {Promise} resolving to the raw result from the MongoDB driver if `options.rawResult` was `true`, or the documents that passed validation, otherwise
+ * @api public
+ */
+
+Model.insertMany = async function insertMany(arr, options) {
+  _checkContext(this, 'insertMany');
+  if (typeof options === 'function' ||
+    typeof arguments[2] === 'function') {
+    throw new MongooseError('Model.insertMany() no longer accepts a callback');
+  }
+
+  return new Promise((resolve, reject) => {
+    this.$__insertMany(arr, options, (err, res) => {
+      if (err != null) {
+        return reject(err);
+      }
+      resolve(res);
+    });
+  });
+};
+
+/**
+ * ignore
+ *
+ * @param {Array} arr
+ * @param {Object} options
+ * @param {Function} callback
+ * @api private
+ * @memberOf Model
+ * @method $__insertMany
+ * @static
+ */
+
+Model.$__insertMany = function(arr, options, callback) {
+  const _this = this;
+  if (typeof options === 'function') {
+    callback = options;
+    options = null;
+  }
+
+  callback = callback || utils.noop;
+  options = options || {};
+  const limit = options.limit || 1000;
+  const rawResult = !!options.rawResult;
+  const ordered = typeof options.ordered === 'boolean' ? options.ordered : true;
+  const throwOnValidationError = typeof options.throwOnValidationError === 'boolean' ? options.throwOnValidationError : false;
+  const lean = !!options.lean;
+
+  const asyncLocalStorage = this.db.base.transactionAsyncLocalStorage?.getStore();
+  if ((!options || !options.hasOwnProperty('session')) && asyncLocalStorage?.session != null) {
+    options = { ...options, session: asyncLocalStorage.session };
+  }
+
+  if (!Array.isArray(arr)) {
+    arr = [arr];
+  }
+
+  const validationErrors = [];
+  const validationErrorsToOriginalOrder = new Map();
+  const results = ordered ? null : new Array(arr.length);
+  const toExecute = arr.map((doc, index) =>
+    callback => {
+      // If option `lean` is set to true bypass validation and hydration
+      if (lean) {
+        // we have to execute callback at the nextTick to be compatible
+        // with parallelLimit, as `results` variable has TDZ issue if we
+        // execute the callback synchronously
+        return immediate(() => callback(null, doc));
+      }
+      let createdNewDoc = false;
+      if (!(doc instanceof _this)) {
+        if (doc != null && typeof doc !== 'object') {
+          return callback(new ObjectParameterError(doc, 'arr.' + index, 'insertMany'));
+        }
+        try {
+          doc = new _this(doc);
+          createdNewDoc = true;
+        } catch (err) {
+          return callback(err);
+        }
+      }
+
+      if (options.session != null) {
+        doc.$session(options.session);
+      }
+      // If option `lean` is set to true bypass validation
+      if (lean) {
+        // we have to execute callback at the nextTick to be compatible
+        // with parallelLimit, as `results` variable has TDZ issue if we
+        // execute the callback synchronously
+        return immediate(() => callback(null, doc));
+      }
+      doc.$validate(createdNewDoc ? { _skipParallelValidateCheck: true } : null).then(
+        () => { callback(null, doc); },
+        error => {
+          if (ordered === false) {
+            validationErrors.push(error);
+            validationErrorsToOriginalOrder.set(error, index);
+            results[index] = error;
+            return callback(null, null);
+          }
+          callback(error);
+        }
+      );
+    });
+
+  parallelLimit(toExecute, limit, function(error, docs) {
+    if (error) {
+      callback(error, null);
+      return;
+    }
+
+    const originalDocIndex = new Map();
+    const validDocIndexToOriginalIndex = new Map();
+    for (let i = 0; i < docs.length; ++i) {
+      originalDocIndex.set(docs[i], i);
+    }
+
+    // We filter all failed pre-validations by removing nulls
+    const docAttributes = docs.filter(function(doc) {
+      return doc != null;
+    });
+    for (let i = 0; i < docAttributes.length; ++i) {
+      validDocIndexToOriginalIndex.set(i, originalDocIndex.get(docAttributes[i]));
+    }
+
+    // Make sure validation errors are in the same order as the
+    // original documents, so if both doc1 and doc2 both fail validation,
+    // `Model.insertMany([doc1, doc2])` will always have doc1's validation
+    // error before doc2's. Re: gh-12791.
+    if (validationErrors.length > 0) {
+      validationErrors.sort((err1, err2) => {
+        return validationErrorsToOriginalOrder.get(err1) - validationErrorsToOriginalOrder.get(err2);
+      });
+    }
+
+    // Quickly escape while there aren't any valid docAttributes
+    if (docAttributes.length === 0) {
+      if (throwOnValidationError) {
+        return callback(new MongooseBulkWriteError(
+          validationErrors,
+          results,
+          null,
+          'insertMany'
+        ));
+      }
+      if (rawResult) {
+        const res = {
+          acknowledged: true,
+          insertedCount: 0,
+          insertedIds: {},
+          mongoose: {
+            validationErrors: validationErrors
+          }
+        };
+        return callback(null, res);
+      }
+      callback(null, []);
+      return;
+    }
+    const docObjects = lean ? docAttributes : docAttributes.map(function(doc) {
+      if (doc.$__schema.options.versionKey) {
+        doc[doc.$__schema.options.versionKey] = 0;
+      }
+      const shouldSetTimestamps = (!options || options.timestamps !== false) && doc.initializeTimestamps && (!doc.$__ || doc.$__.timestamps !== false);
+      if (shouldSetTimestamps) {
+        doc.initializeTimestamps();
+      }
+      if (doc.$__hasOnlyPrimitiveValues()) {
+        return doc.$__toObjectShallow();
+      }
+      return doc.toObject(internalToObjectOptions);
+    });
+
+    _this.$__collection.insertMany(docObjects, options).then(
+      res => {
+        if (!lean) {
+          for (const attribute of docAttributes) {
+            attribute.$__reset();
+            _setIsNew(attribute, false);
+          }
+        }
+
+        if (ordered === false && throwOnValidationError && validationErrors.length > 0) {
+          for (let i = 0; i < results.length; ++i) {
+            if (results[i] === void 0) {
+              results[i] = docs[i];
+            }
+          }
+          return callback(new MongooseBulkWriteError(
+            validationErrors,
+            results,
+            res,
+            'insertMany'
+          ));
+        }
+
+        if (rawResult) {
+          if (ordered === false) {
+            for (let i = 0; i < results.length; ++i) {
+              if (results[i] === void 0) {
+                results[i] = docs[i];
+              }
+            }
+
+            // Decorate with mongoose validation errors in case of unordered,
+            // because then still do `insertMany()`
+            res.mongoose = {
+              validationErrors: validationErrors,
+              results: results
+            };
+          }
+          return callback(null, res);
+        }
+
+        if (options.populate != null) {
+          return _this.populate(docAttributes, options.populate).then(
+            docs => { callback(null, docs); },
+            err => {
+              if (err != null) {
+                err.insertedDocs = docAttributes;
+              }
+              throw err;
+            }
+          );
+        }
+
+        callback(null, docAttributes);
+      },
+      error => {
+        // `writeErrors` is a property reported by the MongoDB driver,
+        // just not if there's only 1 error.
+        if (error.writeErrors == null &&
+            (error.result && error.result.result && error.result.result.writeErrors) != null) {
+          error.writeErrors = error.result.result.writeErrors;
+        }
+
+        // `insertedDocs` is a Mongoose-specific property
+        const hasWriteErrors = error && error.writeErrors;
+        const erroredIndexes = new Set((error && error.writeErrors || []).map(err => err.index));
+
+        if (error.writeErrors != null) {
+          for (let i = 0; i < error.writeErrors.length; ++i) {
+            const originalIndex = validDocIndexToOriginalIndex.get(error.writeErrors[i].index);
+            error.writeErrors[i] = {
+              ...error.writeErrors[i],
+              index: originalIndex
+            };
+            if (!ordered) {
+              results[originalIndex] = error.writeErrors[i];
+            }
+          }
+        }
+
+        if (!ordered) {
+          for (let i = 0; i < results.length; ++i) {
+            if (results[i] === void 0) {
+              results[i] = docs[i];
+            }
+          }
+
+          error.results = results;
+        }
+
+        let firstErroredIndex = -1;
+        error.insertedDocs = docAttributes.
+          filter((doc, i) => {
+            const isErrored = !hasWriteErrors || erroredIndexes.has(i);
+
+            if (ordered) {
+              if (firstErroredIndex > -1) {
+                return i < firstErroredIndex;
+              }
+
+              if (isErrored) {
+                firstErroredIndex = i;
+              }
+            }
+
+            return !isErrored;
+          }).
+          map(function setIsNewForInsertedDoc(doc) {
+            if (lean) {
+              return doc;
+            }
+            doc.$__reset();
+            _setIsNew(doc, false);
+            return doc;
+          });
+
+        if (rawResult && ordered === false) {
+          error.mongoose = {
+            validationErrors: validationErrors,
+            results: results
+          };
+        }
+
+        callback(error, null);
+      }
+    );
+  });
+};
+
+/*!
+ * ignore
+ */
+
+function _setIsNew(doc, val) {
+  doc.$isNew = val;
+  doc.$emit('isNew', val);
+  doc.constructor.emit('isNew', val);
+
+  const subdocs = doc.$getAllSubdocs({ useCache: true });
+  for (const subdoc of subdocs) {
+    subdoc.$isNew = val;
+    subdoc.$emit('isNew', val);
+  }
+}
+
+/**
+ * Sends multiple `insertOne`, `updateOne`, `updateMany`, `replaceOne`,
+ * `deleteOne`, and/or `deleteMany` operations to the MongoDB server in one
+ * command. This is faster than sending multiple independent operations (e.g.
+ * if you use `create()`) because with `bulkWrite()` there is only one round
+ * trip to MongoDB.
+ *
+ * Mongoose will perform casting on all operations you provide.
+ * The only exception is [setting the `update` operator for `updateOne` or `updateMany` to a pipeline](https://www.mongodb.com/docs/manual/reference/method/db.collection.bulkWrite/#updateone-and-updatemany): Mongoose does **not** cast update pipelines.
+ *
+ * This function does **not** trigger any middleware, neither `save()`, nor `update()`.
+ * If you need to trigger
+ * `save()` middleware for every document use [`create()`](https://mongoosejs.com/docs/api/model.html#Model.create()) instead.
+ *
+ * #### Example:
+ *
+ *     Character.bulkWrite([
+ *       {
+ *         insertOne: {
+ *           document: {
+ *             name: 'Eddard Stark',
+ *             title: 'Warden of the North'
+ *           }
+ *         }
+ *       },
+ *       {
+ *         updateOne: {
+ *           filter: { name: 'Eddard Stark' },
+ *           // If you were using the MongoDB driver directly, you'd need to do
+ *           // `update: { $set: { title: ... } }` but mongoose adds $set for
+ *           // you.
+ *           update: { title: 'Hand of the King' }
+ *         }
+ *       },
+ *       {
+ *         deleteOne: {
+ *           filter: { name: 'Eddard Stark' }
+ *         }
+ *       }
+ *     ]).then(res => {
+ *      // Prints "1 1 1"
+ *      console.log(res.insertedCount, res.modifiedCount, res.deletedCount);
+ *     });
+ *
+ *     // Mongoose does **not** cast update pipelines, so no casting for the `update` option below.
+ *     // Mongoose does still cast `filter`
+ *     await Character.bulkWrite([{
+ *       updateOne: {
+ *         filter: { name: 'Annika Hansen' },
+ *         update: [{ $set: { name: 7 } }] // Array means update pipeline, so Mongoose skips casting
+ *       }
+ *     }]);
+ *
+ * The [supported operations](https://www.mongodb.com/docs/manual/reference/method/db.collection.bulkWrite/#db.collection.bulkWrite) are:
+ *
+ * - `insertOne`
+ * - `updateOne`
+ * - `updateMany`
+ * - `deleteOne`
+ * - `deleteMany`
+ * - `replaceOne`
+ *
+ * @param {Array} ops
+ * @param {Object} [ops.insertOne.document] The document to insert
+ * @param {Object} [ops.insertOne.timestamps=true] If false, do not apply [timestamps](https://mongoosejs.com/docs/guide.html#timestamps) to the operation
+ * @param {Object} [ops.updateOne.filter] Update the first document that matches this filter
+ * @param {Object} [ops.updateOne.update] An object containing [update operators](https://www.mongodb.com/docs/manual/reference/operator/update/)
+ * @param {Boolean} [ops.updateOne.upsert=false] If true, insert a doc if none match
+ * @param {Boolean} [ops.updateOne.timestamps=true] If false, do not apply [timestamps](https://mongoosejs.com/docs/guide.html#timestamps) to the operation
+ * @param {Object} [ops.updateOne.collation] The [MongoDB collation](https://thecodebarbarian.com/a-nodejs-perspective-on-mongodb-34-collations) to use
+ * @param {Array} [ops.updateOne.arrayFilters] The [array filters](https://thecodebarbarian.com/a-nodejs-perspective-on-mongodb-36-array-filters.html) used in `update`
+ * @param {Object} [ops.updateMany.filter] Update all the documents that match this filter
+ * @param {Object} [ops.updateMany.update] An object containing [update operators](https://www.mongodb.com/docs/manual/reference/operator/update/)
+ * @param {Boolean} [ops.updateMany.upsert=false] If true, insert a doc if no documents match `filter`
+ * @param {Boolean} [ops.updateMany.timestamps=true] If false, do not apply [timestamps](https://mongoosejs.com/docs/guide.html#timestamps) to the operation
+ * @param {Object} [ops.updateMany.collation] The [MongoDB collation](https://thecodebarbarian.com/a-nodejs-perspective-on-mongodb-34-collations) to use
+ * @param {Array} [ops.updateMany.arrayFilters] The [array filters](https://thecodebarbarian.com/a-nodejs-perspective-on-mongodb-36-array-filters.html) used in `update`
+ * @param {Object} [ops.deleteOne.filter] Delete the first document that matches this filter
+ * @param {Object} [ops.deleteMany.filter] Delete all documents that match this filter
+ * @param {Object} [ops.replaceOne.filter] Replace the first document that matches this filter
+ * @param {Object} [ops.replaceOne.replacement] The replacement document
+ * @param {Boolean} [ops.replaceOne.upsert=false] If true, insert a doc if no documents match `filter`
+ * @param {Object} [ops.replaceOne.timestamps=true] If false, do not apply [timestamps](https://mongoosejs.com/docs/guide.html#timestamps) to the operation
+ * @param {Object} [options]
+ * @param {Boolean} [options.ordered=true] If true, execute writes in order and stop at the first error. If false, execute writes in parallel and continue until all writes have either succeeded or errored.
+ * @param {Boolean} [options.timestamps=true] If false, do not apply [timestamps](https://mongoosejs.com/docs/guide.html#timestamps) to any operations. Can be overridden at the operation-level.
+ * @param {ClientSession} [options.session=null] The session associated with this bulk write. See [transactions docs](https://mongoosejs.com/docs/transactions.html).
+ * @param {String|number} [options.w=1] The [write concern](https://www.mongodb.com/docs/manual/reference/write-concern/). See [`Query#w()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.w()) for more information.
+ * @param {number} [options.wtimeout=null] The [write concern timeout](https://www.mongodb.com/docs/manual/reference/write-concern/#wtimeout).
+ * @param {Boolean} [options.j=true] If false, disable [journal acknowledgement](https://www.mongodb.com/docs/manual/reference/write-concern/#j-option)
+ * @param {Boolean} [options.skipValidation=false] Set to true to skip Mongoose schema validation on bulk write operations. Mongoose currently runs validation on `insertOne` and `replaceOne` operations by default.
+ * @param {Boolean} [options.bypassDocumentValidation=false] If true, disable [MongoDB server-side schema validation](https://www.mongodb.com/docs/manual/core/schema-validation/) for all writes in this bulk.
+ * @param {Boolean} [options.throwOnValidationError=false] If true and `ordered: false`, throw an error if one of the operations failed validation, but all valid operations completed successfully. Note that Mongoose will still send all valid operations to the MongoDB server.
+ * @param {Boolean|"throw"} [options.strict=null] Overwrites the [`strict` option](https://mongoosejs.com/docs/guide.html#strict) on schema. If false, allows filtering and writing fields not defined in the schema for all writes in this bulk.
+ * @return {Promise} resolves to a [`BulkWriteOpResult`](https://mongodb.github.io/node-mongodb-native/4.9/classes/BulkWriteResult.html) if the operation succeeds
+ * @api public
+ */
+
+Model.bulkWrite = async function bulkWrite(ops, options) {
+  _checkContext(this, 'bulkWrite');
+
+  if (typeof options === 'function' ||
+      typeof arguments[2] === 'function') {
+    throw new MongooseError('Model.bulkWrite() no longer accepts a callback');
+  }
+  options = options || {};
+
+  const shouldSkip = await new Promise((resolve, reject) => {
+    this.hooks.execPre('bulkWrite', this, [ops, options], (err) => {
+      if (err != null) {
+        if (err instanceof Kareem.skipWrappedFunction) {
+          return resolve(err);
+        }
+        return reject(err);
+      }
+      resolve();
+    });
+  });
+
+  if (shouldSkip) {
+    return shouldSkip.args[0];
+  }
+
+  const ordered = options.ordered == null ? true : options.ordered;
+
+  if (ops.length === 0) {
+    return getDefaultBulkwriteResult();
+  }
+
+  const validations = ops.map(op => castBulkWrite(this, op, options));
+  const asyncLocalStorage = this.db.base.transactionAsyncLocalStorage?.getStore();
+  if ((!options || !options.hasOwnProperty('session')) && asyncLocalStorage?.session != null) {
+    options = { ...options, session: asyncLocalStorage.session };
+  }
+
+  let res = null;
+  if (ordered) {
+    await new Promise((resolve, reject) => {
+      each(validations, (fn, cb) => fn(cb), error => {
+        if (error) {
+          return reject(error);
+        }
+
+        resolve();
+      });
+    });
+
+    try {
+      res = await this.$__collection.bulkWrite(ops, options);
+    } catch (error) {
+      await new Promise((resolve, reject) => {
+        const _opts = { error: error };
+        this.hooks.execPost('bulkWrite', this, [null], _opts, (err) => {
+          if (err != null) {
+            return reject(err);
+          }
+          resolve();
+        });
+      });
+    }
+  } else {
+    let remaining = validations.length;
+    let validOps = [];
+    let validationErrors = [];
+    const results = [];
+    await new Promise((resolve) => {
+      for (let i = 0; i < validations.length; ++i) {
+        validations[i]((err) => {
+          if (err == null) {
+            validOps.push(i);
+          } else {
+            validationErrors.push({ index: i, error: err });
+            results[i] = err;
+          }
+          if (--remaining <= 0) {
+            resolve();
+          }
+        });
+      }
+    });
+
+    validationErrors = validationErrors.
+      sort((v1, v2) => v1.index - v2.index).
+      map(v => v.error);
+
+    const validOpIndexes = validOps;
+    validOps = validOps.sort().map(index => ops[index]);
+
+    if (validOps.length === 0) {
+      if (options.throwOnValidationError && validationErrors.length) {
+        throw new MongooseBulkWriteError(
+          validationErrors,
+          results,
+          res,
+          'bulkWrite'
+        );
+      }
+      return getDefaultBulkwriteResult();
+    }
+
+    let error;
+    [res, error] = await this.$__collection.bulkWrite(validOps, options).
+      then(res => ([res, null])).
+      catch(error => ([null, error]));
+
+    if (error) {
+      if (validationErrors.length > 0) {
+        error.mongoose = error.mongoose || {};
+        error.mongoose.validationErrors = validationErrors;
+      }
+
+      await new Promise((resolve, reject) => {
+        const _opts = { error: error };
+        this.hooks.execPost('bulkWrite', this, [null], _opts, (err) => {
+          if (err != null) {
+            return reject(err);
+          }
+          resolve();
+        });
+      });
+    }
+
+    for (let i = 0; i < validOpIndexes.length; ++i) {
+      results[validOpIndexes[i]] = null;
+    }
+    if (validationErrors.length > 0) {
+      if (options.throwOnValidationError) {
+        throw new MongooseBulkWriteError(
+          validationErrors,
+          results,
+          res,
+          'bulkWrite'
+        );
+      } else {
+        res.mongoose = res.mongoose || {};
+        res.mongoose.validationErrors = validationErrors;
+        res.mongoose.results = results;
+      }
+    }
+  }
+
+  await new Promise((resolve, reject) => {
+    this.hooks.execPost('bulkWrite', this, [res], (err) => {
+      if (err != null) {
+        return reject(err);
+      }
+      resolve();
+    });
+  });
+
+  return res;
+};
+
+/**
+ * Takes an array of documents, gets the changes and inserts/updates documents in the database
+ * according to whether or not the document is new, or whether it has changes or not.
+ *
+ * `bulkSave` uses `bulkWrite` under the hood, so it's mostly useful when dealing with many documents (10K+)
+ *
+ * `bulkSave()` throws errors under the following conditions:
+ *
+ * - one of the provided documents fails validation. In this case, `bulkSave()` does not send a `bulkWrite()`, and throws the first validation error.
+ * - `bulkWrite()` fails (for example, due to being unable to connect to MongoDB or due to duplicate key error)
+ * - `bulkWrite()` did not insert or update **any** documents. In this case, `bulkSave()` will throw a DocumentNotFound error.
+ *
+ * Note that `bulkSave()` will **not** throw an error if only some of the `save()` calls succeeded.
+ *
+ * @param {Array<Document>} documents
+ * @param {Object} [options] options passed to the underlying `bulkWrite()`
+ * @param {Boolean} [options.timestamps] defaults to `null`, when set to false, mongoose will not add/update timestamps to the documents.
+ * @param {ClientSession} [options.session=null] The session associated with this bulk write. See [transactions docs](https://mongoosejs.com/docs/transactions.html).
+ * @param {String|number} [options.w=1] The [write concern](https://www.mongodb.com/docs/manual/reference/write-concern/). See [`Query#w()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.w()) for more information.
+ * @param {number} [options.wtimeout=null] The [write concern timeout](https://www.mongodb.com/docs/manual/reference/write-concern/#wtimeout).
+ * @param {Boolean} [options.j=true] If false, disable [journal acknowledgement](https://www.mongodb.com/docs/manual/reference/write-concern/#j-option)
+ * @param {Boolean} [options.validateBeforeSave=true] set to `false` to skip Mongoose validation on all documents
+ * @return {BulkWriteResult} the return value from `bulkWrite()`
+ */
+Model.bulkSave = async function bulkSave(documents, options) {
+  options = options || {};
+
+  if (options.timestamps != null) {
+    for (const document of documents) {
+      document.$__.saveOptions = document.$__.saveOptions || {};
+      document.$__.saveOptions.timestamps = options.timestamps;
+    }
+  } else {
+    for (const document of documents) {
+      if (document.$__.timestamps != null) {
+        document.$__.saveOptions = document.$__.saveOptions || {};
+        document.$__.saveOptions.timestamps = document.$__.timestamps;
+      }
+    }
+  }
+
+  await Promise.all(documents.map(doc => buildPreSavePromise(doc, options)));
+
+  const writeOperations = this.buildBulkWriteOperations(documents, { skipValidation: true, timestamps: options.timestamps });
+  const { bulkWriteResult, bulkWriteError } = await this.bulkWrite(writeOperations, { skipValidation: true, ...options }).then(
+    (res) => ({ bulkWriteResult: res, bulkWriteError: null }),
+    (err) => ({ bulkWriteResult: null, bulkWriteError: err })
+  );
+  // If not a MongoBulkWriteError, treat this as all documents failed to save.
+  if (bulkWriteError != null && !(bulkWriteError instanceof MongoBulkWriteError)) {
+    throw bulkWriteError;
+  }
+
+  const matchedCount = bulkWriteResult?.matchedCount ?? 0;
+  const insertedCount = bulkWriteResult?.insertedCount ?? 0;
+  if (writeOperations.length > 0 && matchedCount + insertedCount < writeOperations.length && !bulkWriteError) {
+    throw new MongooseBulkSaveIncompleteError(
+      this.modelName,
+      documents,
+      bulkWriteResult
+    );
+  }
+
+  const successfulDocuments = [];
+  for (let i = 0; i < documents.length; i++) {
+    const document = documents[i];
+    const documentError = bulkWriteError && bulkWriteError.writeErrors.find(writeError => {
+      const writeErrorDocumentId = writeError.err.op._id || writeError.err.op.q._id;
+      return writeErrorDocumentId.toString() === document._doc._id.toString();
+    });
+
+    if (documentError == null) {
+      successfulDocuments.push(document);
+    }
+  }
+  await Promise.all(successfulDocuments.map(document => handleSuccessfulWrite(document)));
+
+  if (bulkWriteError && bulkWriteError.writeErrors && bulkWriteError.writeErrors.length) {
+    throw bulkWriteError;
+  }
+
+  return bulkWriteResult;
+};
+
+function buildPreSavePromise(document, options) {
+  return new Promise((resolve, reject) => {
+    document.schema.s.hooks.execPre('save', document, [options], (err) => {
+      if (err) {
+        reject(err);
+        return;
+      }
+      resolve();
+    });
+  });
+}
+
+function handleSuccessfulWrite(document) {
+  return new Promise((resolve, reject) => {
+    if (document.$isNew) {
+      _setIsNew(document, false);
+    }
+
+    document.$__reset();
+    document.schema.s.hooks.execPost('save', document, [document], {}, (err) => {
+      if (err) {
+        reject(err);
+        return;
+      }
+      resolve();
+    });
+
+  });
+}
+
+/**
+ * Apply defaults to the given document or POJO.
+ *
+ * @param {Object|Document} obj object or document to apply defaults on
+ * @returns {Object|Document}
+ * @api public
+ */
+
+Model.applyDefaults = function applyDefaults(doc) {
+  if (doc == null) {
+    return doc;
+  }
+  if (doc.$__ != null) {
+    applyDefaultsHelper(doc, doc.$__.fields, doc.$__.exclude);
+
+    for (const subdoc of doc.$getAllSubdocs()) {
+      applyDefaults(subdoc, subdoc.$__.fields, subdoc.$__.exclude);
+    }
+
+    return doc;
+  }
+
+  applyDefaultsToPOJO(doc, this.schema);
+
+  return doc;
+};
+
+/**
+ * Apply this model's virtuals to a given POJO. Virtuals execute with the POJO as the context `this`.
+ *
+ * #### Example:
+ *
+ *     const userSchema = new Schema({ name: String });
+ *     userSchema.virtual('upper').get(function() { return this.name.toUpperCase(); });
+ *     const User = mongoose.model('User', userSchema);
+ *
+ *     const obj = { name: 'John' };
+ *     User.applyVirtuals(obj);
+ *     obj.name; // 'John'
+ *     obj.upper; // 'JOHN', Mongoose applied the return value of the virtual to the given object
+ *
+ * @param {Object} obj object or document to apply virtuals on
+ * @param {Array<string>} [virtualsToApply] optional whitelist of virtuals to apply
+ * @returns {Object} obj
+ * @api public
+ */
+
+Model.applyVirtuals = function applyVirtuals(obj, virtualsToApply) {
+  if (obj == null) {
+    return obj;
+  }
+  // Nothing to do if this is already a hydrated document - it should already have virtuals
+  if (obj.$__ != null) {
+    return obj;
+  }
+
+  applyVirtualsHelper(this.schema, obj, virtualsToApply);
+
+  return obj;
+};
+
+/**
+ * Apply this model's timestamps to a given POJO, including subdocument timestamps
+ *
+ * #### Example:
+ *
+ *     const userSchema = new Schema({ name: String }, { timestamps: true });
+ *     const User = mongoose.model('User', userSchema);
+ *
+ *     const obj = { name: 'John' };
+ *     User.applyTimestamps(obj);
+ *     obj.createdAt; // 2024-06-01T18:00:00.000Z
+ *     obj.updatedAt; // 2024-06-01T18:00:00.000Z
+ *
+ * @param {Object} obj object or document to apply virtuals on
+ * @param {Object} [options]
+ * @param {Boolean} [options.isUpdate=false] if true, treat this as an update: just set updatedAt, skip setting createdAt. If false, set both createdAt and updatedAt
+ * @param {Function} [options.currentTime] if set, Mongoose will call this function to get the current time.
+ * @returns {Object} obj
+ * @api public
+ */
+
+Model.applyTimestamps = function applyTimestamps(obj, options) {
+  if (obj == null) {
+    return obj;
+  }
+  // Nothing to do if this is already a hydrated document - it should already have timestamps
+  if (obj.$__ != null) {
+    return obj;
+  }
+
+  applyTimestampsHelper(this.schema, obj, options);
+
+  return obj;
+};
+
+/**
+ * Cast the given POJO to the model's schema
+ *
+ * #### Example:
+ *
+ *     const Test = mongoose.model('Test', Schema({ num: Number }));
+ *
+ *     const obj = Test.castObject({ num: '42' });
+ *     obj.num; // 42 as a number
+ *
+ *     Test.castObject({ num: 'not a number' }); // Throws a ValidationError
+ *
+ * @param {Object} obj object or document to cast
+ * @param {Object} options options passed to castObject
+ * @param {Boolean} options.ignoreCastErrors If set to `true` will not throw a ValidationError and only return values that were successfully cast.
+ * @returns {Object} POJO casted to the model's schema
+ * @throws {ValidationError} if casting failed for at least one path
+ * @api public
+ */
+
+Model.castObject = function castObject(obj, options) {
+  options = options || {};
+  const ret = {};
+
+  let schema = this.schema;
+  const discriminatorKey = schema.options.discriminatorKey;
+  if (schema.discriminators != null && obj != null && obj[discriminatorKey] != null) {
+    schema = getSchemaDiscriminatorByValue(schema, obj[discriminatorKey]) || schema;
+  }
+  const paths = Object.keys(schema.paths);
+
+  for (const path of paths) {
+    const schemaType = schema.path(path);
+    if (!schemaType || !schemaType.$isMongooseArray) {
+      continue;
+    }
+
+    const val = get(obj, path);
+    pushNestedArrayPaths(paths, val, path);
+  }
+
+  let error = null;
+
+  for (const path of paths) {
+    const schemaType = schema.path(path);
+    if (schemaType == null) {
+      continue;
+    }
+
+    let val = get(obj, path, void 0);
+
+    if (val == null) {
+      continue;
+    }
+
+    const pieces = path.indexOf('.') === -1 ? [path] : path.split('.');
+    let cur = ret;
+    for (let i = 0; i < pieces.length - 1; ++i) {
+      if (cur[pieces[i]] == null) {
+        cur[pieces[i]] = isNaN(pieces[i + 1]) ? {} : [];
+      }
+      cur = cur[pieces[i]];
+    }
+
+    if (schemaType.$isMongooseDocumentArray) {
+      const castNonArraysOption = schemaType.options?.castNonArrays ?? schemaType.constructor.options.castNonArrays;
+      if (!Array.isArray(val)) {
+        if (!castNonArraysOption) {
+          if (!options.ignoreCastErrors) {
+            error = error || new ValidationError();
+            error.addError(path, new ObjectExpectedError(path, val));
+          }
+        } else {
+          cur[pieces[pieces.length - 1]] = [
+            Model.castObject.call(schemaType.caster, val)
+          ];
+        }
+
+        continue;
+      }
+    }
+    if (schemaType.$isSingleNested || schemaType.$isMongooseDocumentArrayElement) {
+      try {
+        val = Model.castObject.call(schemaType.caster, val);
+      } catch (err) {
+        if (!options.ignoreCastErrors) {
+          error = error || new ValidationError();
+          error.addError(path, err);
+        }
+        continue;
+      }
+
+      cur[pieces[pieces.length - 1]] = val;
+      continue;
+    }
+
+    try {
+      val = schemaType.cast(val);
+      cur[pieces[pieces.length - 1]] = val;
+    } catch (err) {
+      if (!options.ignoreCastErrors) {
+        error = error || new ValidationError();
+        error.addError(path, err);
+      }
+
+      continue;
+    }
+  }
+
+  if (error != null) {
+    throw error;
+  }
+
+  return ret;
+};
+
+/**
+ * Build bulk write operations for `bulkSave()`.
+ *
+ * @param {Array<Document>} documents The array of documents to build write operations of
+ * @param {Object} options
+ * @param {Boolean} options.skipValidation defaults to `false`, when set to true, building the write operations will bypass validating the documents.
+ * @param {Boolean} options.timestamps defaults to `null`, when set to false, mongoose will not add/update timestamps to the documents.
+ * @return {Array<Promise>} Returns a array of all Promises the function executes to be awaited.
+ * @api private
+ */
+
+Model.buildBulkWriteOperations = function buildBulkWriteOperations(documents, options) {
+  if (!Array.isArray(documents)) {
+    throw new Error(`bulkSave expects an array of documents to be passed, received \`${documents}\` instead`);
+  }
+
+  setDefaultOptions();
+  const discriminatorKey = this.schema.options.discriminatorKey;
+
+  const writeOperations = documents.reduce((accumulator, document, i) => {
+    if (!options.skipValidation) {
+      if (!(document instanceof Document)) {
+        throw new Error(`documents.${i} was not a mongoose document, documents must be an array of mongoose documents (instanceof mongoose.Document).`);
+      }
+      const validationError = document.validateSync();
+      if (validationError) {
+        throw validationError;
+      }
+    }
+
+    const isANewDocument = document.isNew;
+    if (isANewDocument) {
+      const writeOperation = { insertOne: { document } };
+      utils.injectTimestampsOption(writeOperation.insertOne, options.timestamps);
+      accumulator.push(writeOperation);
+
+      return accumulator;
+    }
+
+    const delta = document.$__delta();
+    const isDocumentWithChanges = delta != null && !utils.isEmptyObject(delta[0]);
+
+    if (isDocumentWithChanges) {
+      const where = document.$__where(delta[0]);
+      const changes = delta[1];
+
+      _applyCustomWhere(document, where);
+
+      // If shard key is set, add shard keys to _filter_ condition to right shard is targeted
+      const shardKey = this.schema.options.shardKey;
+      if (shardKey) {
+        const paths = Object.keys(shardKey);
+        const len = paths.length;
+
+        for (let i = 0; i < len; ++i) {
+          where[paths[i]] = document[paths[i]];
+        }
+      }
+
+      // Set the discriminator key, so bulk write casting knows which
+      // schema to use re: gh-13907
+      if (document[discriminatorKey] != null && !(discriminatorKey in where)) {
+        where[discriminatorKey] = document[discriminatorKey];
+      }
+
+      document.$__version(where, delta);
+      const writeOperation = { updateOne: { filter: where, update: changes } };
+      utils.injectTimestampsOption(writeOperation.updateOne, options.timestamps);
+      accumulator.push(writeOperation);
+
+      return accumulator;
+    }
+
+    return accumulator;
+  }, []);
+
+  return writeOperations;
+
+
+  function setDefaultOptions() {
+    options = options || {};
+    if (options.skipValidation == null) {
+      options.skipValidation = false;
+    }
+  }
+};
+
+
+/**
+ * Shortcut for creating a new Document from existing raw data, pre-saved in the DB.
+ * The document returned has no paths marked as modified initially.
+ *
+ * #### Example:
+ *
+ *     // hydrate previous data into a Mongoose document
+ *     const mongooseCandy = Candy.hydrate({ _id: '54108337212ffb6d459f854c', type: 'jelly bean' });
+ *
+ * @param {Object} obj
+ * @param {Object|String|String[]} [projection] optional projection containing which fields should be selected for this document
+ * @param {Object} [options] optional options
+ * @param {Boolean} [options.setters=false] if true, apply schema setters when hydrating
+ * @param {Boolean} [options.hydratedPopulatedDocs=false] if true, populates the docs if passing pre-populated data
+ * @return {Document} document instance
+ * @api public
+ */
+
+Model.hydrate = function(obj, projection, options) {
+  _checkContext(this, 'hydrate');
+
+  if (projection != null) {
+    if (obj != null && obj.$__ != null) {
+      obj = obj.toObject(internalToObjectOptions);
+    }
+    obj = applyProjection(obj, projection);
+  }
+  const document = require('./queryHelpers').createModel(this, obj, projection);
+  document.$init(obj, options);
+  return document;
+};
+
+/**
+ * Same as `updateOne()`, except MongoDB will update _all_ documents that match
+ * `filter` (as opposed to just the first one) regardless of the value of
+ * the `multi` option.
+ *
+ * **Note** updateMany will _not_ fire update middleware. Use `pre('updateMany')`
+ * and `post('updateMany')` instead.
+ *
+ * #### Example:
+ *
+ *     const res = await Person.updateMany({ name: /Stark$/ }, { isDeleted: true });
+ *     res.matchedCount; // Number of documents matched
+ *     res.modifiedCount; // Number of documents modified
+ *     res.acknowledged; // Boolean indicating the MongoDB server received the operation. This may be false if Mongoose did not send an update to the server because the update was empty.
+ *     res.upsertedId; // null or an id containing a document that had to be upserted.
+ *     res.upsertedCount; // Number indicating how many documents had to be upserted. Will either be 0 or 1.
+ *
+ * This function triggers the following middleware.
+ *
+ * - `updateMany()`
+ *
+ * @param {Object} filter
+ * @param {Object|Array} update. If array, this update will be treated as an update pipeline and not casted.
+ * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions())
+ * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict)
+ * @param {Boolean} [options.upsert=false] if true, and no documents found, insert a new document
+ * @param {Object} [options.writeConcern=null] sets the [write concern](https://www.mongodb.com/docs/manual/reference/write-concern/) for replica sets. Overrides the [schema-level write concern](https://mongoosejs.com/docs/guide.html#writeConcern)
+ * @param {Boolean} [options.timestamps=null] If set to `false` and [schema-level timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this update. Does nothing if schema-level timestamps are not set.
+ * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object.
+ * @param {Boolean} [options.overwriteDiscriminatorKey=false] Mongoose removes discriminator key updates from `update` by default, set `overwriteDiscriminatorKey` to `true` to allow updating the discriminator key
+ * @return {Query}
+ * @see Query docs https://mongoosejs.com/docs/queries.html
+ * @see MongoDB docs https://www.mongodb.com/docs/manual/reference/command/update/#update-command-output
+ * @see UpdateResult https://mongodb.github.io/node-mongodb-native/4.9/interfaces/UpdateResult.html
+ * @api public
+ */
+
+Model.updateMany = function updateMany(conditions, doc, options) {
+  _checkContext(this, 'updateMany');
+
+  return _update(this, 'updateMany', conditions, doc, options);
+};
+
+/**
+ * Update _only_ the first document that matches `filter`.
+ *
+ * - Use `replaceOne()` if you want to overwrite an entire document rather than using atomic operators like `$set`.
+ *
+ * #### Example:
+ *
+ *     const res = await Person.updateOne({ name: 'Jean-Luc Picard' }, { ship: 'USS Enterprise' });
+ *     res.matchedCount; // Number of documents matched
+ *     res.modifiedCount; // Number of documents modified
+ *     res.acknowledged; // Boolean indicating the MongoDB server received the operation. This may be false if Mongoose did not send an update to the server because the update was empty.
+ *     res.upsertedId; // null or an id containing a document that had to be upserted.
+ *     res.upsertedCount; // Number indicating how many documents had to be upserted. Will either be 0 or 1.
+ *
+ * This function triggers the following middleware.
+ *
+ * - `updateOne()`
+ *
+ * @param {Object} filter
+ * @param {Object|Array} update. If array, this update will be treated as an update pipeline and not casted.
+ * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions())
+ * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict)
+ * @param {Boolean} [options.upsert=false] if true, and no documents found, insert a new document
+ * @param {Object} [options.writeConcern=null] sets the [write concern](https://www.mongodb.com/docs/manual/reference/write-concern/) for replica sets. Overrides the [schema-level write concern](https://mongoosejs.com/docs/guide.html#writeConcern)
+ * @param {Boolean} [options.timestamps=null] If set to `false` and [schema-level timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this update. Note that this allows you to overwrite timestamps. Does nothing if schema-level timestamps are not set.
+ * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object.
+ * @param {Boolean} [options.overwriteDiscriminatorKey=false] Mongoose removes discriminator key updates from `update` by default, set `overwriteDiscriminatorKey` to `true` to allow updating the discriminator key
+ * @return {Query}
+ * @see Query docs https://mongoosejs.com/docs/queries.html
+ * @see MongoDB docs https://www.mongodb.com/docs/manual/reference/command/update/#update-command-output
+ * @see UpdateResult https://mongodb.github.io/node-mongodb-native/4.9/interfaces/UpdateResult.html
+ * @api public
+ */
+
+Model.updateOne = function updateOne(conditions, doc, options) {
+  _checkContext(this, 'updateOne');
+
+  return _update(this, 'updateOne', conditions, doc, options);
+};
+
+/**
+ * Replace the existing document with the given document (no atomic operators like `$set`).
+ *
+ * #### Example:
+ *
+ *     const res = await Person.replaceOne({ _id: 24601 }, { name: 'Jean Valjean' });
+ *     res.matchedCount; // Number of documents matched
+ *     res.modifiedCount; // Number of documents modified
+ *     res.acknowledged; // Boolean indicating the MongoDB server received the operation.
+ *     res.upsertedId; // null or an id containing a document that had to be upserted.
+ *     res.upsertedCount; // Number indicating how many documents had to be upserted. Will either be 0 or 1.
+ *
+ * This function triggers the following middleware.
+ *
+ * - `replaceOne()`
+ *
+ * @param {Object} filter
+ * @param {Object} doc
+ * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions())
+ * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict)
+ * @param {Boolean} [options.upsert=false] if true, and no documents found, insert a new document
+ * @param {Object} [options.writeConcern=null] sets the [write concern](https://www.mongodb.com/docs/manual/reference/write-concern/) for replica sets. Overrides the [schema-level write concern](https://mongoosejs.com/docs/guide.html#writeConcern)
+ * @param {Boolean} [options.timestamps=null] If set to `false` and [schema-level timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this update. Does nothing if schema-level timestamps are not set.
+ * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object.
+ * @return {Query}
+ * @see Query docs https://mongoosejs.com/docs/queries.html
+ * @see UpdateResult https://mongodb.github.io/node-mongodb-native/4.9/interfaces/UpdateResult.html
+ * @return {Query}
+ * @api public
+ */
+
+Model.replaceOne = function replaceOne(conditions, doc, options) {
+  _checkContext(this, 'replaceOne');
+
+  const versionKey = this && this.schema && this.schema.options && this.schema.options.versionKey || null;
+  if (versionKey && !doc[versionKey]) {
+    doc[versionKey] = 0;
+  }
+
+  return _update(this, 'replaceOne', conditions, doc, options);
+};
+
+/**
+ * Common code for `updateOne()`, `updateMany()`, `replaceOne()`, and `update()`
+ * because they need to do the same thing
+ * @api private
+ */
+
+function _update(model, op, conditions, doc, options) {
+  const mq = new model.Query({}, {}, model, model.collection);
+
+  // gh-2406
+  // make local deep copy of conditions
+  if (conditions instanceof Document) {
+    conditions = conditions.toObject();
+  } else {
+    conditions = clone(conditions);
+  }
+  options = typeof options === 'function' ? options : clone(options);
+
+  const versionKey = model &&
+  model.schema &&
+  model.schema.options &&
+  model.schema.options.versionKey || null;
+  decorateUpdateWithVersionKey(doc, options, versionKey);
+
+  return mq[op](conditions, doc, options);
+}
+
+/**
+ * Performs [aggregations](https://www.mongodb.com/docs/manual/aggregation/) on the models collection.
+ *
+ * The `aggregate` itself is returned.
+ *
+ * This function triggers the following middleware.
+ *
+ * - `aggregate()`
+ *
+ * #### Example:
+ *
+ *     // Find the max balance of all accounts
+ *     const res = await Users.aggregate([
+ *       { $group: { _id: null, maxBalance: { $max: '$balance' }}},
+ *       { $project: { _id: 0, maxBalance: 1 }}
+ *     ]);
+ *
+ *     console.log(res); // [ { maxBalance: 98000 } ]
+ *
+ *     // Or use the aggregation pipeline builder.
+ *     const res = await Users.aggregate().
+ *       group({ _id: null, maxBalance: { $max: '$balance' } }).
+ *       project('-id maxBalance').
+ *       exec();
+ *     console.log(res); // [ { maxBalance: 98 } ]
+ *
+ * #### Note:
+ *
+ * - Mongoose does **not** cast aggregation pipelines to the model's schema because `$project` and `$group` operators allow redefining the "shape" of the documents at any stage of the pipeline, which may leave documents in an incompatible format. You can use the [mongoose-cast-aggregation plugin](https://github.com/AbdelrahmanHafez/mongoose-cast-aggregation) to enable minimal casting for aggregation pipelines.
+ * - The documents returned are plain javascript objects, not mongoose documents (since any shape of document can be returned).
+ *
+ * #### More About Aggregations:
+ *
+ * - [Mongoose `Aggregate`](https://mongoosejs.com/docs/api/aggregate.html)
+ * - [An Introduction to Mongoose Aggregate](https://masteringjs.io/tutorials/mongoose/aggregate)
+ * - [MongoDB Aggregation docs](https://www.mongodb.com/docs/manual/applications/aggregation/)
+ *
+ * @see Aggregate https://mongoosejs.com/docs/api/aggregate.html#Aggregate()
+ * @see MongoDB https://www.mongodb.com/docs/manual/applications/aggregation/
+ * @param {Array} [pipeline] aggregation pipeline as an array of objects
+ * @param {Object} [options] aggregation options
+ * @return {Aggregate}
+ * @api public
+ */
+
+Model.aggregate = function aggregate(pipeline, options) {
+  _checkContext(this, 'aggregate');
+
+  if (typeof options === 'function' || typeof arguments[2] === 'function') {
+    throw new MongooseError('Model.aggregate() no longer accepts a callback');
+  }
+
+  const aggregate = new Aggregate(pipeline || []);
+  aggregate.model(this);
+  if (options != null) {
+    aggregate.option(options);
+  }
+
+  return aggregate;
+};
+
+/**
+ * Casts and validates the given object against this model's schema, passing the
+ * given `context` to custom validators.
+ *
+ * #### Example:
+ *
+ *     const Model = mongoose.model('Test', Schema({
+ *       name: { type: String, required: true },
+ *       age: { type: Number, required: true }
+ *     });
+ *
+ *     try {
+ *       await Model.validate({ name: null }, ['name'])
+ *     } catch (err) {
+ *       err instanceof mongoose.Error.ValidationError; // true
+ *       Object.keys(err.errors); // ['name']
+ *     }
+ *
+ * @param {Object} obj
+ * @param {Object|Array|String} pathsOrOptions
+ * @param {Object} [context]
+ * @return {Promise<Object>} casted and validated copy of `obj` if validation succeeded
+ * @api public
+ */
+
+Model.validate = async function validate(obj, pathsOrOptions, context) {
+  if ((arguments.length < 3) || (arguments.length === 3 && typeof arguments[2] === 'function')) {
+    // For convenience, if we're validating a document or an object, make `context` default to
+    // the model so users don't have to always pass `context`, re: gh-10132, gh-10346
+    context = obj;
+  }
+  if (typeof context === 'function' || typeof arguments[3] === 'function') {
+    throw new MongooseError('Model.validate() no longer accepts a callback');
+  }
+
+  let schema = this.schema;
+  const discriminatorKey = schema.options.discriminatorKey;
+  if (schema.discriminators != null && obj != null && obj[discriminatorKey] != null) {
+    schema = getSchemaDiscriminatorByValue(schema, obj[discriminatorKey]) || schema;
+  }
+  let paths = Object.keys(schema.paths);
+
+  if (pathsOrOptions != null) {
+    const _pathsToValidate = typeof pathsOrOptions === 'string' ? new Set(pathsOrOptions.split(' ')) : Array.isArray(pathsOrOptions) ? new Set(pathsOrOptions) : new Set(paths);
+    paths = paths.filter(p => {
+      if (pathsOrOptions.pathsToSkip) {
+        if (Array.isArray(pathsOrOptions.pathsToSkip)) {
+          if (pathsOrOptions.pathsToSkip.find(x => x == p)) {
+            return false;
+          }
+        } else if (typeof pathsOrOptions.pathsToSkip == 'string') {
+          if (pathsOrOptions.pathsToSkip.includes(p)) {
+            return false;
+          }
+        }
+      }
+      const pieces = p.split('.');
+      let cur = pieces[0];
+
+      for (const piece of pieces) {
+        if (_pathsToValidate.has(cur)) {
+          return true;
+        }
+        cur += '.' + piece;
+      }
+
+      return _pathsToValidate.has(p);
+    });
+  }
+
+  for (const path of paths) {
+    const schemaType = schema.path(path);
+    if (!schemaType || !schemaType.$isMongooseArray || schemaType.$isMongooseDocumentArray) {
+      continue;
+    }
+
+    const val = get(obj, path);
+    pushNestedArrayPaths(paths, val, path);
+  }
+
+  let error = null;
+  paths = new Set(paths);
+
+  try {
+    obj = this.castObject(obj);
+  } catch (err) {
+    error = err;
+    for (const key of Object.keys(error.errors || {})) {
+      paths.delete(key);
+    }
+  }
+
+  let remaining = paths.size;
+
+  return new Promise((resolve, reject) => {
+    for (const path of paths) {
+      const schemaType = schema.path(path);
+      if (schemaType == null) {
+        _checkDone();
+        continue;
+      }
+
+      const pieces = path.indexOf('.') === -1 ? [path] : path.split('.');
+      let cur = obj;
+      for (let i = 0; i < pieces.length - 1; ++i) {
+        cur = cur[pieces[i]];
+      }
+
+      const val = get(obj, path, void 0);
+
+      schemaType.doValidate(val, err => {
+        if (err) {
+          error = error || new ValidationError();
+          error.addError(path, err);
+        }
+        _checkDone();
+      }, context, { path: path });
+    }
+
+    function _checkDone() {
+      if (--remaining <= 0) {
+        if (error) {
+          reject(error);
+        } else {
+          resolve(obj);
+        }
+      }
+    }
+  });
+};
+
+/**
+ * Populates document references.
+ *
+ * Changed in Mongoose 6: the model you call `populate()` on should be the
+ * "local field" model, **not** the "foreign field" model.
+ *
+ * #### Available top-level options:
+ *
+ * - path: space delimited path(s) to populate
+ * - select: optional fields to select
+ * - match: optional query conditions to match
+ * - model: optional name of the model to use for population
+ * - options: optional query options like sort, limit, etc
+ * - justOne: optional boolean, if true Mongoose will always set `path` to a document, or `null` if no document was found. If false, Mongoose will always set `path` to an array, which will be empty if no documents are found. Inferred from schema by default.
+ * - strictPopulate: optional boolean, set to `false` to allow populating paths that aren't in the schema.
+ * - forceRepopulate: optional boolean, defaults to `true`. Set to `false` to prevent Mongoose from repopulating paths that are already populated
+ *
+ * #### Example:
+ *
+ *     const Dog = mongoose.model('Dog', new Schema({ name: String, breed: String }));
+ *     const Person = mongoose.model('Person', new Schema({
+ *       name: String,
+ *       pet: { type: mongoose.ObjectId, ref: 'Dog' }
+ *     }));
+ *
+ *     const pets = await Pet.create([
+ *       { name: 'Daisy', breed: 'Beagle' },
+ *       { name: 'Einstein', breed: 'Catalan Sheepdog' }
+ *     ]);
+ *
+ *     // populate many plain objects
+ *     const users = [
+ *       { name: 'John Wick', dog: pets[0]._id },
+ *       { name: 'Doc Brown', dog: pets[1]._id }
+ *     ];
+ *     await User.populate(users, { path: 'dog', select: 'name' });
+ *     users[0].dog.name; // 'Daisy'
+ *     users[0].dog.breed; // undefined because of `select`
+ *
+ * @param {Document|Array} docs Either a single document or array of documents to populate.
+ * @param {Object|String} options Either the paths to populate or an object specifying all parameters
+ * @param {string} [options.path=null] The path to populate.
+ * @param {string|PopulateOptions} [options.populate=null] Recursively populate paths in the populated documents. See [deep populate docs](https://mongoosejs.com/docs/populate.html#deep-populate).
+ * @param {boolean} [options.retainNullValues=false] By default, Mongoose removes null and undefined values from populated arrays. Use this option to make `populate()` retain `null` and `undefined` array entries.
+ * @param {boolean} [options.getters=false] If true, Mongoose will call any getters defined on the `localField`. By default, Mongoose gets the raw value of `localField`. For example, you would need to set this option to `true` if you wanted to [add a `lowercase` getter to your `localField`](https://mongoosejs.com/docs/schematypes.html#schematype-options).
+ * @param {boolean} [options.clone=false] When you do `BlogPost.find().populate('author')`, blog posts with the same author will share 1 copy of an `author` doc. Enable this option to make Mongoose clone populated docs before assigning them.
+ * @param {Object|Function} [options.match=null] Add an additional filter to the populate query. Can be a filter object containing [MongoDB query syntax](https://www.mongodb.com/docs/manual/tutorial/query-documents/), or a function that returns a filter object.
+ * @param {Boolean} [options.skipInvalidIds=false] By default, Mongoose throws a cast error if `localField` and `foreignField` schemas don't line up. If you enable this option, Mongoose will instead filter out any `localField` properties that cannot be casted to `foreignField`'s schema type.
+ * @param {Number} [options.perDocumentLimit=null] For legacy reasons, `limit` with `populate()` may give incorrect results because it only executes a single query for every document being populated. If you set `perDocumentLimit`, Mongoose will ensure correct `limit` per document by executing a separate query for each document to `populate()`. For example, `.find().populate({ path: 'test', perDocumentLimit: 2 })` will execute 2 additional queries if `.find()` returns 2 documents.
+ * @param {Boolean} [options.strictPopulate=true] Set to false to allow populating paths that aren't defined in the given model's schema.
+ * @param {Object} [options.options=null] Additional options like `limit` and `lean`.
+ * @param {Function} [options.transform=null] Function that Mongoose will call on every populated document that allows you to transform the populated document.
+ * @param {Boolean} [options.forceRepopulate=true] Set to `false` to prevent Mongoose from repopulating paths that are already populated
+ * @return {Promise}
+ * @api public
+ */
+
+Model.populate = async function populate(docs, paths) {
+  _checkContext(this, 'populate');
+  if (typeof paths === 'function' || typeof arguments[2] === 'function') {
+    throw new MongooseError('Model.populate() no longer accepts a callback');
+  }
+  // normalized paths
+  paths = utils.populate(paths);
+
+  if (paths.length === 0) {
+    return docs;
+  }
+
+  // each path has its own query options and must be executed separately
+  const promises = [];
+  for (const path of paths) {
+    promises.push(_populatePath(this, docs, path));
+  }
+  await Promise.all(promises);
+
+  return docs;
+};
+
+/*!
+ * Populates `docs` for a single `populateOptions` instance.
+ */
+const excludeIdReg = /\s?-_id\s?/;
+const excludeIdRegGlobal = /\s?-_id\s?/g;
+
+async function _populatePath(model, docs, populateOptions) {
+  if (populateOptions.strictPopulate == null) {
+    if (populateOptions._localModel != null && populateOptions._localModel.schema._userProvidedOptions.strictPopulate != null) {
+      populateOptions.strictPopulate = populateOptions._localModel.schema._userProvidedOptions.strictPopulate;
+    } else if (populateOptions._localModel != null && model.base.options.strictPopulate != null) {
+      populateOptions.strictPopulate = model.base.options.strictPopulate;
+    } else if (model.base.options.strictPopulate != null) {
+      populateOptions.strictPopulate = model.base.options.strictPopulate;
+    }
+  }
+
+  // normalize single / multiple docs passed
+  if (!Array.isArray(docs)) {
+    docs = [docs];
+  }
+  if (docs.length === 0 || docs.every(utils.isNullOrUndefined)) {
+    return;
+  }
+
+  const modelsMap = getModelsMapForPopulate(model, docs, populateOptions);
+  if (modelsMap instanceof MongooseError) {
+    throw modelsMap;
+  }
+  const len = modelsMap.length;
+  let vals = [];
+
+  function flatten(item) {
+    // no need to include undefined values in our query
+    return undefined !== item;
+  }
+
+  let hasOne = false;
+  const params = [];
+  for (let i = 0; i < len; ++i) {
+    const mod = modelsMap[i];
+    let select = mod.options.select;
+    let ids = utils.array.flatten(mod.ids, flatten);
+    ids = utils.array.unique(ids);
+
+    const assignmentOpts = {};
+    assignmentOpts.sort = mod &&
+      mod.options &&
+      mod.options.options &&
+      mod.options.options.sort || void 0;
+    assignmentOpts.excludeId = excludeIdReg.test(select) || (select && select._id === 0);
+
+    // Lean transform may delete `_id`, which would cause assignment
+    // to fail. So delay running lean transform until _after_
+    // `_assign()`
+    if (mod.options &&
+        mod.options.options &&
+        mod.options.options.lean &&
+        mod.options.options.lean.transform) {
+      mod.options.options._leanTransform = mod.options.options.lean.transform;
+      mod.options.options.lean = true;
+    }
+
+    if (ids.length === 0 || ids.every(utils.isNullOrUndefined)) {
+      // Ensure that we set to 0 or empty array even
+      // if we don't actually execute a query to make sure there's a value
+      // and we know this path was populated for future sets. See gh-7731, gh-8230
+      _assign(model, [], mod, assignmentOpts);
+      continue;
+    }
+
+    hasOne = true;
+    if (typeof populateOptions.foreignField === 'string') {
+      mod.foreignField.clear();
+      mod.foreignField.add(populateOptions.foreignField);
+    }
+    const match = createPopulateQueryFilter(ids, mod.match, mod.foreignField, mod.model, mod.options.skipInvalidIds);
+    if (assignmentOpts.excludeId) {
+      // override the exclusion from the query so we can use the _id
+      // for document matching during assignment. we'll delete the
+      // _id back off before returning the result.
+      if (typeof select === 'string') {
+        select = select.replace(excludeIdRegGlobal, ' ');
+      } else if (Array.isArray(select)) {
+        select = select.filter(field => field !== '-_id');
+      } else {
+        // preserve original select conditions by copying
+        select = { ...select };
+        delete select._id;
+      }
+    }
+
+    if (mod.options.options && mod.options.options.limit != null) {
+      assignmentOpts.originalLimit = mod.options.options.limit;
+    } else if (mod.options.limit != null) {
+      assignmentOpts.originalLimit = mod.options.limit;
+    }
+    params.push([mod, match, select, assignmentOpts]);
+  }
+  if (!hasOne) {
+    // If models but no docs, skip further deep populate.
+    if (modelsMap.length !== 0) {
+      return;
+    }
+    // If no models and no docs to populate but we have a nested populate,
+    // probably a case of unnecessarily populating a non-ref path re: gh-8946
+    if (populateOptions.populate != null) {
+      const opts = utils.populate(populateOptions.populate).map(pop => Object.assign({}, pop, {
+        path: populateOptions.path + '.' + pop.path
+      }));
+      return model.populate(docs, opts);
+    }
+    return;
+  }
+
+  const promises = [];
+  for (const arr of params) {
+    promises.push(_execPopulateQuery.apply(null, arr).then(valsFromDb => { vals = vals.concat(valsFromDb); }));
+  }
+
+  await Promise.all(promises);
+
+  for (const arr of params) {
+    const mod = arr[0];
+    const assignmentOpts = arr[3];
+    for (const val of vals) {
+      mod.options._childDocs.push(val);
+    }
+    _assign(model, vals, mod, assignmentOpts);
+  }
+
+  for (const arr of params) {
+    removeDeselectedForeignField(arr[0].foreignField, arr[0].options, vals);
+  }
+  for (const arr of params) {
+    const mod = arr[0];
+    if (mod.options && mod.options.options && mod.options.options._leanTransform) {
+      for (const doc of vals) {
+        mod.options.options._leanTransform(doc);
+      }
+    }
+  }
+}
+
+/*!
+ * ignore
+ */
+
+function _execPopulateQuery(mod, match, select) {
+  let subPopulate = clone(mod.options.populate);
+  const queryOptions = Object.assign({
+    skip: mod.options.skip,
+    limit: mod.options.limit,
+    perDocumentLimit: mod.options.perDocumentLimit
+  }, mod.options.options);
+
+  if (mod.count) {
+    delete queryOptions.skip;
+  }
+
+  if (queryOptions.perDocumentLimit != null) {
+    queryOptions.limit = queryOptions.perDocumentLimit;
+    delete queryOptions.perDocumentLimit;
+  } else if (queryOptions.limit != null) {
+    queryOptions.limit = queryOptions.limit * mod.ids.length;
+  }
+
+  const query = mod.model.find(match, select, queryOptions);
+  // If we're doing virtual populate and projection is inclusive and foreign
+  // field is not selected, automatically select it because mongoose needs it.
+  // If projection is exclusive and client explicitly unselected the foreign
+  // field, that's the client's fault.
+  for (const foreignField of mod.foreignField) {
+    if (foreignField !== '_id' &&
+        query.selectedInclusively() &&
+        !isPathSelectedInclusive(query._fields, foreignField)) {
+      query.select(foreignField);
+    }
+  }
+
+  // If using count, still need the `foreignField` so we can match counts
+  // to documents, otherwise we would need a separate `count()` for every doc.
+  if (mod.count) {
+    for (const foreignField of mod.foreignField) {
+      query.select(foreignField);
+    }
+  }
+
+  // If we need to sub-populate, call populate recursively
+  if (subPopulate) {
+    // If subpopulating on a discriminator, skip check for non-existent
+    // paths. Because the discriminator may not have the path defined.
+    if (mod.model.baseModelName != null) {
+      if (Array.isArray(subPopulate)) {
+        subPopulate.forEach(pop => { pop.strictPopulate = false; });
+      } else if (typeof subPopulate === 'string') {
+        subPopulate = { path: subPopulate, strictPopulate: false };
+      } else {
+        subPopulate.strictPopulate = false;
+      }
+    }
+    const basePath = mod.options._fullPath || mod.options.path;
+
+    if (Array.isArray(subPopulate)) {
+      for (const pop of subPopulate) {
+        pop._fullPath = basePath + '.' + pop.path;
+      }
+    } else if (typeof subPopulate === 'object') {
+      subPopulate._fullPath = basePath + '.' + subPopulate.path;
+    }
+
+    query.populate(subPopulate);
+  }
+
+  return query.exec().then(
+    docs => {
+      for (const val of docs) {
+        leanPopulateMap.set(val, mod.model);
+      }
+      return docs;
+    }
+  );
+}
+
+/*!
+ * ignore
+ */
+
+function _assign(model, vals, mod, assignmentOpts) {
+  const options = mod.options;
+  const isVirtual = mod.isVirtual;
+  const justOne = mod.justOne;
+  let _val;
+  const lean = options &&
+    options.options &&
+    options.options.lean || false;
+  const len = vals.length;
+  const rawOrder = {};
+  const rawDocs = {};
+  let key;
+  let val;
+
+  // Clone because `assignRawDocsToIdStructure` will mutate the array
+  const allIds = clone(mod.allIds);
+  // optimization:
+  // record the document positions as returned by
+  // the query result.
+  for (let i = 0; i < len; i++) {
+    val = vals[i];
+    if (val == null) {
+      continue;
+    }
+    for (const foreignField of mod.foreignField) {
+      _val = utils.getValue(foreignField, val);
+      if (Array.isArray(_val)) {
+        _val = utils.array.unique(utils.array.flatten(_val));
+
+        for (let __val of _val) {
+          if (__val instanceof Document) {
+            __val = __val._doc._id;
+          }
+          key = String(__val);
+          if (rawDocs[key]) {
+            if (Array.isArray(rawDocs[key])) {
+              rawDocs[key].push(val);
+              rawOrder[key].push(i);
+            } else {
+              rawDocs[key] = [rawDocs[key], val];
+              rawOrder[key] = [rawOrder[key], i];
+            }
+          } else {
+            if (isVirtual && !justOne) {
+              rawDocs[key] = [val];
+              rawOrder[key] = [i];
+            } else {
+              rawDocs[key] = val;
+              rawOrder[key] = i;
+            }
+          }
+        }
+      } else {
+        if (_val instanceof Document) {
+          _val = _val._doc._id;
+        }
+        key = String(_val);
+        if (rawDocs[key]) {
+          if (Array.isArray(rawDocs[key])) {
+            rawDocs[key].push(val);
+            rawOrder[key].push(i);
+          } else if (isVirtual ||
+            rawDocs[key].constructor !== val.constructor ||
+            (rawDocs[key] instanceof Document ? String(rawDocs[key]._doc._id) : String(rawDocs[key]._id)) !== (val instanceof Document ? String(val._doc._id) : String(val._id))) {
+            // May need to store multiple docs with the same id if there's multiple models
+            // if we have discriminators or a ref function. But avoid converting to an array
+            // if we have multiple queries on the same model because of `perDocumentLimit` re: gh-9906
+            rawDocs[key] = [rawDocs[key], val];
+            rawOrder[key] = [rawOrder[key], i];
+          }
+        } else {
+          rawDocs[key] = val;
+          rawOrder[key] = i;
+        }
+      }
+      // flag each as result of population
+      if (!lean) {
+        val.$__.wasPopulated = val.$__.wasPopulated || { value: _val };
+      }
+    }
+  }
+
+  assignVals({
+    originalModel: model,
+    // If virtual, make sure to not mutate original field
+    rawIds: mod.isVirtual ? allIds : mod.allIds,
+    allIds: allIds,
+    unpopulatedValues: mod.unpopulatedValues,
+    foreignField: mod.foreignField,
+    rawDocs: rawDocs,
+    rawOrder: rawOrder,
+    docs: mod.docs,
+    path: options.path,
+    options: assignmentOpts,
+    justOne: mod.justOne,
+    isVirtual: mod.isVirtual,
+    allOptions: mod,
+    populatedModel: mod.model,
+    lean: lean,
+    virtual: mod.virtual,
+    count: mod.count,
+    match: mod.match
+  });
+}
+
+/**
+ * Compiler utility.
+ *
+ * @param {String|Function} name model name or class extending Model
+ * @param {Schema} schema
+ * @param {String} collectionName
+ * @param {Connection} connection
+ * @param {Mongoose} base mongoose instance
+ * @api private
+ */
+
+Model.compile = function compile(name, schema, collectionName, connection, base) {
+  const versioningEnabled = schema.options.versionKey !== false;
+
+  if (versioningEnabled && !schema.paths[schema.options.versionKey]) {
+    // add versioning to top level documents only
+    const o = {};
+    o[schema.options.versionKey] = Number;
+    schema.add(o);
+  }
+  let model;
+  if (typeof name === 'function' && name.prototype instanceof Model) {
+    model = name;
+    name = model.name;
+    schema.loadClass(model, false);
+    model.prototype.$isMongooseModelPrototype = true;
+  } else {
+    // generate new class
+    model = function model(doc, fields, skipId) {
+      model.hooks.execPreSync('createModel', doc);
+      if (!(this instanceof model)) {
+        return new model(doc, fields, skipId);
+      }
+      const discriminatorKey = model.schema.options.discriminatorKey;
+
+      if (model.discriminators == null || doc == null || doc[discriminatorKey] == null) {
+        Model.call(this, doc, fields, skipId);
+        return;
+      }
+
+      // If discriminator key is set, use the discriminator instead (gh-7586)
+      const Discriminator = model.discriminators[doc[discriminatorKey]] ||
+        getDiscriminatorByValue(model.discriminators, doc[discriminatorKey]);
+      if (Discriminator != null) {
+        return new Discriminator(doc, fields, skipId);
+      }
+
+      // Otherwise, just use the top-level model
+      Model.call(this, doc, fields, skipId);
+    };
+  }
+
+  model.hooks = schema.s.hooks.clone();
+  model.base = base;
+  model.modelName = name;
+
+  if (!(model.prototype instanceof Model)) {
+    Object.setPrototypeOf(model, Model);
+    Object.setPrototypeOf(model.prototype, Model.prototype);
+  }
+  model.model = function model(name) {
+    return this.db.model(name);
+  };
+
+  model.db = connection;
+  model.prototype.db = connection;
+  model.prototype[modelDbSymbol] = connection;
+  model.discriminators = model.prototype.discriminators = undefined;
+  model[modelSymbol] = true;
+  model.events = new EventEmitter();
+
+  schema._preCompile();
+
+  const _userProvidedOptions = schema._userProvidedOptions || {};
+
+  const collectionOptions = {
+    schemaUserProvidedOptions: _userProvidedOptions,
+    capped: schema.options.capped,
+    Promise: model.base.Promise,
+    modelName: name
+  };
+  if (schema.options.autoCreate !== void 0) {
+    collectionOptions.autoCreate = schema.options.autoCreate;
+  }
+
+  const collection = connection.collection(
+    collectionName,
+    collectionOptions
+  );
+
+  model.prototype.collection = collection;
+  model.prototype.$collection = collection;
+  model.prototype[modelCollectionSymbol] = collection;
+
+  model.prototype.$__setSchema(schema);
+
+  // apply methods and statics
+  applyMethods(model, schema);
+  applyStatics(model, schema);
+  applyHooks(model, schema);
+  applyStaticHooks(model, schema.s.hooks, schema.statics);
+
+  model.schema = model.prototype.$__schema;
+  model.collection = collection;
+  model.$__collection = collection;
+
+  // Create custom query constructor
+  model.Query = function() {
+    Query.apply(this, arguments);
+  };
+  Object.setPrototypeOf(model.Query.prototype, Query.prototype);
+  model.Query.base = Query.base;
+  model.Query.prototype.constructor = Query;
+  model._applyQueryMiddleware();
+  applyQueryMethods(model, schema.query);
+
+  return model;
+};
+
+/**
+ * Update this model to use the new connection, including updating all internal
+ * references and creating a new `Collection` instance using the new connection.
+ * Not for external use, only used by `setDriver()` to ensure that you can still
+ * call `setDriver()` after creating a model using `mongoose.model()`.
+ *
+ * @param {Connection} newConnection the new connection to use
+ * @api private
+ */
+
+Model.$__updateConnection = function $__updateConnection(newConnection) {
+  this.db = newConnection;
+  this.prototype.db = newConnection;
+  this.prototype[modelDbSymbol] = newConnection;
+
+  const collection = newConnection.collection(
+    this.collection.collectionName,
+    this.collection.opts
+  );
+
+  this.prototype.collection = collection;
+  this.prototype.$collection = collection;
+  this.prototype[modelCollectionSymbol] = collection;
+
+  this.collection = collection;
+  this.$__collection = collection;
+};
+
+/**
+ * Register custom query methods for this model
+ *
+ * @param {Model} model
+ * @param {Schema} schema
+ * @api private
+ */
+
+function applyQueryMethods(model, methods) {
+  for (const i in methods) {
+    model.Query.prototype[i] = methods[i];
+  }
+}
+
+/**
+ * Subclass this model with `conn`, `schema`, and `collection` settings.
+ *
+ * @param {Connection} conn
+ * @param {Schema} [schema]
+ * @param {String} [collection]
+ * @return {Model}
+ * @api private
+ * @memberOf Model
+ * @static
+ * @method __subclass
+ */
+
+Model.__subclass = function subclass(conn, schema, collection) {
+  // subclass model using this connection and collection name
+  const _this = this;
+
+  const Model = function Model(doc, fields, skipId) {
+    if (!(this instanceof Model)) {
+      return new Model(doc, fields, skipId);
+    }
+    _this.call(this, doc, fields, skipId);
+  };
+
+  Object.setPrototypeOf(Model, _this);
+  Object.setPrototypeOf(Model.prototype, _this.prototype);
+  Model.db = conn;
+  Model.prototype.db = conn;
+  Model.prototype[modelDbSymbol] = conn;
+
+  _this[subclassedSymbol] = _this[subclassedSymbol] || [];
+  _this[subclassedSymbol].push(Model);
+  if (_this.discriminators != null) {
+    Model.discriminators = {};
+    for (const key of Object.keys(_this.discriminators)) {
+      Model.discriminators[key] = _this.discriminators[key].
+        __subclass(_this.db, _this.discriminators[key].schema, collection);
+    }
+  }
+
+  const s = schema && typeof schema !== 'string'
+    ? schema
+    : _this.prototype.$__schema;
+
+  const options = s.options || {};
+  const _userProvidedOptions = s._userProvidedOptions || {};
+
+  if (!collection) {
+    collection = _this.prototype.$__schema.get('collection') ||
+      utils.toCollectionName(_this.modelName, this.base.pluralize());
+  }
+
+  const collectionOptions = {
+    schemaUserProvidedOptions: _userProvidedOptions,
+    capped: s && options.capped
+  };
+
+  Model.prototype.collection = conn.collection(collection, collectionOptions);
+  Model.prototype.$collection = Model.prototype.collection;
+  Model.prototype[modelCollectionSymbol] = Model.prototype.collection;
+  Model.collection = Model.prototype.collection;
+  Model.$__collection = Model.collection;
+  // Errors handled internally, so ignore
+  Model.init().catch(() => {});
+  return Model;
+};
+
+/**
+ * Apply changes made to this model's schema after this model was compiled.
+ * By default, adding virtuals and other properties to a schema after the model is compiled does nothing.
+ * Call this function to apply virtuals and properties that were added later.
+ *
+ * #### Example:
+ *
+ *     const schema = new mongoose.Schema({ field: String });
+ *     const TestModel = mongoose.model('Test', schema);
+ *     TestModel.schema.virtual('myVirtual').get(function() {
+ *       return this.field + ' from myVirtual';
+ *     });
+ *     const doc = new TestModel({ field: 'Hello' });
+ *     doc.myVirtual; // undefined
+ *
+ *     TestModel.recompileSchema();
+ *     doc.myVirtual; // 'Hello from myVirtual'
+ *
+ * @return {undefined}
+ * @api public
+ * @memberOf Model
+ * @static
+ * @method recompileSchema
+ */
+
+Model.recompileSchema = function recompileSchema() {
+  this.prototype.$__setSchema(this.schema);
+
+  if (this.schema._applyDiscriminators != null) {
+    for (const disc of this.schema._applyDiscriminators.keys()) {
+      this.discriminator(disc, this.schema._applyDiscriminators.get(disc));
+    }
+  }
+
+  delete this.schema._defaultToObjectOptionsMap;
+
+  applyEmbeddedDiscriminators(this.schema, new WeakSet(), true);
+};
+
+/**
+ * Helper for console.log. Given a model named 'MyModel', returns the string
+ * `'Model { MyModel }'`.
+ *
+ * #### Example:
+ *
+ *     const MyModel = mongoose.model('Test', Schema({ name: String }));
+ *     MyModel.inspect(); // 'Model { Test }'
+ *     console.log(MyModel); // Prints 'Model { Test }'
+ *
+ * @api public
+ */
+
+Model.inspect = function() {
+  return `Model { ${this.modelName} }`;
+};
+
+/**
+ * Return the MongoDB namespace for this model as a string. The namespace is the database name, followed by '.', followed by the collection name.
+ *
+ * #### Example:
+ *
+ *     const conn = mongoose.createConnection('mongodb://127.0.0.1:27017/mydb');
+ *     const TestModel = conn.model('Test', mongoose.Schema({ name: String }));
+ *
+ *     TestModel.namespace(); // 'mydb.tests'
+ *
+ * @api public
+ */
+
+Model.namespace = function namespace() {
+  return this.db.name + '.' + this.collection.collectionName;
+};
+
+if (util.inspect.custom) {
+  // Avoid Node deprecation warning DEP0079
+  Model[util.inspect.custom] = Model.inspect;
+}
+
+/*!
+ * Applies query middleware from this model's schema to this model's
+ * Query constructor.
+ */
+
+Model._applyQueryMiddleware = function _applyQueryMiddleware() {
+  const Query = this.Query;
+  const queryMiddleware = this.schema.s.hooks.filter(hook => {
+    const contexts = _getContexts(hook);
+    if (hook.name === 'validate') {
+      return !!contexts.query;
+    }
+    if (hook.name === 'deleteOne' || hook.name === 'updateOne') {
+      return !!contexts.query || Object.keys(contexts).length === 0;
+    }
+    if (hook.query != null || hook.document != null) {
+      return !!hook.query;
+    }
+    return true;
+  });
+
+  Query.prototype._queryMiddleware = queryMiddleware;
+};
+
+function _getContexts(hook) {
+  const ret = {};
+  if (hook.hasOwnProperty('query')) {
+    ret.query = hook.query;
+  }
+  if (hook.hasOwnProperty('document')) {
+    ret.document = hook.document;
+  }
+  return ret;
+}
+
+/*!
+ * Module exports.
+ */
+
+module.exports = exports = Model;
diff --git a/backend/node_modules/mongoose/lib/modifiedPathsSnapshot.js b/backend/node_modules/mongoose/lib/modifiedPathsSnapshot.js
new file mode 100644
index 0000000..54d6b30
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/modifiedPathsSnapshot.js
@@ -0,0 +1,9 @@
+'use strict';
+
+module.exports = class ModifiedPathsSnapshot {
+  constructor(subdocSnapshot, activePaths, version) {
+    this.subdocSnapshot = subdocSnapshot;
+    this.activePaths = activePaths;
+    this.version = version;
+  }
+};
diff --git a/backend/node_modules/mongoose/lib/mongoose.js b/backend/node_modules/mongoose/lib/mongoose.js
new file mode 100644
index 0000000..f3b5f09
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/mongoose.js
@@ -0,0 +1,1358 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const Document = require('./document');
+const EventEmitter = require('events').EventEmitter;
+const Kareem = require('kareem');
+const Schema = require('./schema');
+const SchemaType = require('./schemaType');
+const SchemaTypes = require('./schema/index');
+const VirtualType = require('./virtualType');
+const STATES = require('./connectionState');
+const VALID_OPTIONS = require('./validOptions');
+const Types = require('./types');
+const Query = require('./query');
+const Model = require('./model');
+const applyPlugins = require('./helpers/schema/applyPlugins');
+const builtinPlugins = require('./plugins');
+const driver = require('./driver');
+const legacyPluralize = require('./helpers/pluralize');
+const utils = require('./utils');
+const pkg = require('../package.json');
+const cast = require('./cast');
+
+const Aggregate = require('./aggregate');
+const trusted = require('./helpers/query/trusted').trusted;
+const sanitizeFilter = require('./helpers/query/sanitizeFilter');
+const isBsonType = require('./helpers/isBsonType');
+const MongooseError = require('./error/mongooseError');
+const SetOptionError = require('./error/setOptionError');
+const applyEmbeddedDiscriminators = require('./helpers/discriminator/applyEmbeddedDiscriminators');
+
+const defaultMongooseSymbol = Symbol.for('mongoose:default');
+const defaultConnectionSymbol = Symbol('mongoose:defaultConnection');
+
+require('./helpers/printJestWarning');
+
+const objectIdHexRegexp = /^[0-9A-Fa-f]{24}$/;
+
+const { AsyncLocalStorage } = require('node:async_hooks');
+
+/**
+ * Mongoose constructor.
+ *
+ * The exports object of the `mongoose` module is an instance of this class.
+ * Most apps will only use this one instance.
+ *
+ * #### Example:
+ *
+ *     const mongoose = require('mongoose');
+ *     mongoose instanceof mongoose.Mongoose; // true
+ *
+ *     // Create a new Mongoose instance with its own `connect()`, `set()`, `model()`, etc.
+ *     const m = new mongoose.Mongoose();
+ *
+ * @api public
+ * @param {Object} options see [`Mongoose#set()` docs](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.set())
+ */
+function Mongoose(options) {
+  this.connections = [];
+  this.nextConnectionId = 0;
+  this.models = {};
+  this.events = new EventEmitter();
+  this.__driver = driver.get();
+  // default global options
+  this.options = Object.assign({
+    pluralization: true,
+    autoIndex: true,
+    autoCreate: true,
+    autoSearchIndex: false
+  }, options);
+  const createInitialConnection = utils.getOption('createInitialConnection', this.options) ?? true;
+  if (createInitialConnection && this.__driver != null) {
+    _createDefaultConnection(this);
+  }
+
+  if (this.options.pluralization) {
+    this._pluralize = legacyPluralize;
+  }
+
+  // If a user creates their own Mongoose instance, give them a separate copy
+  // of the `Schema` constructor so they get separate custom types. (gh-6933)
+  if (!options || !options[defaultMongooseSymbol]) {
+    const _this = this;
+    this.Schema = function() {
+      this.base = _this;
+      return Schema.apply(this, arguments);
+    };
+    this.Schema.prototype = Object.create(Schema.prototype);
+
+    Object.assign(this.Schema, Schema);
+    this.Schema.base = this;
+    this.Schema.Types = Object.assign({}, Schema.Types);
+  } else {
+    // Hack to work around babel's strange behavior with
+    // `import mongoose, { Schema } from 'mongoose'`. Because `Schema` is not
+    // an own property of a Mongoose global, Schema will be undefined. See gh-5648
+    for (const key of ['Schema', 'model']) {
+      this[key] = Mongoose.prototype[key];
+    }
+  }
+  this.Schema.prototype.base = this;
+
+  if (options?.transactionAsyncLocalStorage) {
+    this.transactionAsyncLocalStorage = new AsyncLocalStorage();
+  }
+
+  Object.defineProperty(this, 'plugins', {
+    configurable: false,
+    enumerable: true,
+    writable: false,
+    value: Object.values(builtinPlugins).map(plugin => ([plugin, { deduplicate: true }]))
+  });
+}
+
+Mongoose.prototype.cast = cast;
+/**
+ * Expose connection states for user-land
+ *
+ * @memberOf Mongoose
+ * @property STATES
+ * @api public
+ */
+Mongoose.prototype.STATES = STATES;
+
+/**
+ * Expose connection states for user-land
+ *
+ * @memberOf Mongoose
+ * @property ConnectionStates
+ * @api public
+ */
+Mongoose.prototype.ConnectionStates = STATES;
+
+/**
+ * Object with `get()` and `set()` containing the underlying driver this Mongoose instance
+ * uses to communicate with the database. A driver is a Mongoose-specific interface that defines functions
+ * like `find()`.
+ *
+ * @deprecated
+ * @memberOf Mongoose
+ * @property driver
+ * @api public
+ */
+
+Mongoose.prototype.driver = driver;
+
+/**
+ * Overwrites the current driver used by this Mongoose instance. A driver is a
+ * Mongoose-specific interface that defines functions like `find()`.
+ *
+ * @memberOf Mongoose
+ * @method setDriver
+ * @api public
+ */
+
+Mongoose.prototype.setDriver = function setDriver(driver) {
+  const _mongoose = this instanceof Mongoose ? this : mongoose;
+
+  if (_mongoose.__driver === driver) {
+    return _mongoose;
+  }
+
+  const openConnection = _mongoose.connections && _mongoose.connections.find(conn => conn.readyState !== STATES.disconnected);
+  if (openConnection) {
+    const msg = 'Cannot modify Mongoose driver if a connection is already open. ' +
+      'Call `mongoose.disconnect()` before modifying the driver';
+    throw new MongooseError(msg);
+  }
+  _mongoose.__driver = driver;
+
+  if (Array.isArray(driver.plugins)) {
+    for (const plugin of driver.plugins) {
+      if (typeof plugin === 'function') {
+        _mongoose.plugin(plugin);
+      }
+    }
+  }
+
+  const Connection = driver.Connection;
+  const oldDefaultConnection = _mongoose.connections[0];
+  _mongoose.connections = [new Connection(_mongoose)];
+  _mongoose.connections[0].models = _mongoose.models;
+  if (oldDefaultConnection == null) {
+    return _mongoose;
+  }
+
+  // Update all models that pointed to the old default connection to
+  // the new default connection, including collections
+  for (const model of Object.values(_mongoose.models)) {
+    if (model.db !== oldDefaultConnection) {
+      continue;
+    }
+    model.$__updateConnection(_mongoose.connections[0]);
+  }
+
+  return _mongoose;
+};
+
+/**
+ * Sets mongoose options
+ *
+ * `key` can be used a object to set multiple options at once.
+ * If a error gets thrown for one option, other options will still be evaluated.
+ *
+ * #### Example:
+ *
+ *     mongoose.set('test', value) // sets the 'test' option to `value`
+ *
+ *     mongoose.set('debug', true) // enable logging collection methods + arguments to the console/file
+ *
+ *     mongoose.set('debug', function(collectionName, methodName, ...methodArgs) {}); // use custom function to log collection methods + arguments
+ *
+ *     mongoose.set({ debug: true, autoIndex: false }); // set multiple options at once
+ *
+ * Currently supported options are:
+ * - `allowDiskUse`: Set to `true` to set `allowDiskUse` to true to all aggregation operations by default.
+ * - `applyPluginsToChildSchemas`: `true` by default. Set to false to skip applying global plugins to child schemas
+ * - `applyPluginsToDiscriminators`: `false` by default. Set to true to apply global plugins to discriminator schemas. This typically isn't necessary because plugins are applied to the base schema and discriminators copy all middleware, methods, statics, and properties from the base schema.
+ * - `autoCreate`: Set to `true` to make Mongoose call [`Model.createCollection()`](https://mongoosejs.com/docs/api/model.html#Model.createCollection()) automatically when you create a model with `mongoose.model()` or `conn.model()`. This is useful for testing transactions, change streams, and other features that require the collection to exist.
+ * - `autoIndex`: `true` by default. Set to false to disable automatic index creation for all models associated with this Mongoose instance.
+ * - `bufferCommands`: enable/disable mongoose's buffering mechanism for all connections and models
+ * - `bufferTimeoutMS`: If bufferCommands is on, this option sets the maximum amount of time Mongoose buffering will wait before throwing an error. If not specified, Mongoose will use 10000 (10 seconds).
+ * - `cloneSchemas`: `false` by default. Set to `true` to `clone()` all schemas before compiling into a model.
+ * - `debug`: If `true`, prints the operations mongoose sends to MongoDB to the console. If a writable stream is passed, it will log to that stream, without colorization. If a callback function is passed, it will receive the collection name, the method name, then all arguments passed to the method. For example, if you wanted to replicate the default logging, you could output from the callback `Mongoose: ${collectionName}.${methodName}(${methodArgs.join(', ')})`.
+ * - `id`: If `true`, adds a `id` virtual to all schemas unless overwritten on a per-schema basis.
+ * - `timestamps.createdAt.immutable`: `true` by default. If `false`, it will change the `createdAt` field to be [`immutable: false`](https://mongoosejs.com/docs/api/schematype.html#SchemaType.prototype.immutable) which means you can update the `createdAt`
+ * - `maxTimeMS`: If set, attaches [maxTimeMS](https://www.mongodb.com/docs/manual/reference/operator/meta/maxTimeMS/) to every query
+ * - `objectIdGetter`: `true` by default. Mongoose adds a getter to MongoDB ObjectId's called `_id` that returns `this` for convenience with populate. Set this to false to remove the getter.
+ * - `overwriteModels`: Set to `true` to default to overwriting models with the same name when calling `mongoose.model()`, as opposed to throwing an `OverwriteModelError`.
+ * - `returnOriginal`: If `false`, changes the default `returnOriginal` option to `findOneAndUpdate()`, `findByIdAndUpdate`, and `findOneAndReplace()` to false. This is equivalent to setting the `new` option to `true` for `findOneAndX()` calls by default. Read our [`findOneAndUpdate()` tutorial](https://mongoosejs.com/docs/tutorials/findoneandupdate.html) for more information.
+ * - `runValidators`: `false` by default. Set to true to enable [update validators](https://mongoosejs.com/docs/validation.html#update-validators) for all validators by default.
+ * - `sanitizeFilter`: `false` by default. Set to true to enable the [sanitization of the query filters](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.sanitizeFilter()) against query selector injection attacks by wrapping any nested objects that have a property whose name starts with `$` in a `$eq`.
+ * - `selectPopulatedPaths`: `true` by default. Set to false to opt out of Mongoose adding all fields that you `populate()` to your `select()`. The schema-level option `selectPopulatedPaths` overwrites this one.
+ * - `strict`: `true` by default, may be `false`, `true`, or `'throw'`. Sets the default strict mode for schemas.
+ * - `strictQuery`: `false` by default. May be `false`, `true`, or `'throw'`. Sets the default [strictQuery](https://mongoosejs.com/docs/guide.html#strictQuery) mode for schemas.
+ * - `toJSON`: `{ transform: true, flattenDecimals: true }` by default. Overwrites default objects to [`toJSON()`](https://mongoosejs.com/docs/api/document.html#Document.prototype.toJSON()), for determining how Mongoose documents get serialized by `JSON.stringify()`
+ * - `toObject`: `{ transform: true, flattenDecimals: true }` by default. Overwrites default objects to [`toObject()`](https://mongoosejs.com/docs/api/document.html#Document.prototype.toObject())
+ *
+ * @param {String|Object} key The name of the option or a object of multiple key-value pairs
+ * @param {String|Function|Boolean} value The value of the option, unused if "key" is a object
+ * @returns {Mongoose} The used Mongoose instnace
+ * @api public
+ */
+
+Mongoose.prototype.set = function getsetOptions(key, value) {
+  const _mongoose = this instanceof Mongoose ? this : mongoose;
+
+  if (arguments.length === 1 && typeof key !== 'object') {
+    if (VALID_OPTIONS.indexOf(key) === -1) {
+      const error = new SetOptionError();
+      error.addError(key, new SetOptionError.SetOptionInnerError(key));
+      throw error;
+    }
+
+    return _mongoose.options[key];
+  }
+
+  let options = {};
+
+  if (arguments.length === 2) {
+    options = { [key]: value };
+  }
+
+  if (arguments.length === 1 && typeof key === 'object') {
+    options = key;
+  }
+
+  // array for errors to collect all errors for all key-value pairs, like ".validate"
+  let error = undefined;
+
+  for (const [optionKey, optionValue] of Object.entries(options)) {
+    if (VALID_OPTIONS.indexOf(optionKey) === -1) {
+      if (!error) {
+        error = new SetOptionError();
+      }
+      error.addError(optionKey, new SetOptionError.SetOptionInnerError(optionKey));
+      continue;
+    }
+
+    _mongoose.options[optionKey] = optionValue;
+
+    if (optionKey === 'objectIdGetter') {
+      if (optionValue) {
+        Object.defineProperty(_mongoose.Types.ObjectId.prototype, '_id', {
+          enumerable: false,
+          configurable: true,
+          get: function() {
+            return this;
+          }
+        });
+      } else {
+        delete _mongoose.Types.ObjectId.prototype._id;
+      }
+    } else if (optionKey === 'transactionAsyncLocalStorage') {
+      if (optionValue && !_mongoose.transactionAsyncLocalStorage) {
+        _mongoose.transactionAsyncLocalStorage = new AsyncLocalStorage();
+      } else if (!optionValue && _mongoose.transactionAsyncLocalStorage) {
+        delete _mongoose.transactionAsyncLocalStorage;
+      }
+    } else if (optionKey === 'createInitialConnection') {
+      if (optionValue && !_mongoose.connection) {
+        _createDefaultConnection(_mongoose);
+      } else if (optionValue === false && _mongoose.connection && _mongoose.connection[defaultConnectionSymbol]) {
+        if (_mongoose.connection.readyState === STATES.disconnected && Object.keys(_mongoose.connection.models).length === 0) {
+          _mongoose.connections.shift();
+        }
+      }
+    }
+  }
+
+  if (error) {
+    throw error;
+  }
+
+  return _mongoose;
+};
+
+/**
+ * Gets mongoose options
+ *
+ * #### Example:
+ *
+ *     mongoose.get('test') // returns the 'test' value
+ *
+ * @param {String} key
+ * @method get
+ * @api public
+ */
+
+Mongoose.prototype.get = Mongoose.prototype.set;
+
+/**
+ * Creates a Connection instance.
+ *
+ * Each `connection` instance maps to a single database. This method is helpful when managing multiple db connections.
+ *
+ *
+ * _Options passed take precedence over options included in connection strings._
+ *
+ * #### Example:
+ *
+ *     // with mongodb:// URI
+ *     db = mongoose.createConnection('mongodb://user:pass@127.0.0.1:port/database');
+ *
+ *     // and options
+ *     const opts = { db: { native_parser: true }}
+ *     db = mongoose.createConnection('mongodb://user:pass@127.0.0.1:port/database', opts);
+ *
+ *     // replica sets
+ *     db = mongoose.createConnection('mongodb://user:pass@127.0.0.1:port,anotherhost:port,yetanother:port/database');
+ *
+ *     // and options
+ *     const opts = { replset: { strategy: 'ping', rs_name: 'testSet' }}
+ *     db = mongoose.createConnection('mongodb://user:pass@127.0.0.1:port,anotherhost:port,yetanother:port/database', opts);
+ *
+ *     // initialize now, connect later
+ *     db = mongoose.createConnection();
+ *     await db.openUri('mongodb://127.0.0.1:27017/database');
+ *
+ * @param {String} uri mongodb URI to connect to
+ * @param {Object} [options] passed down to the [MongoDB driver's `connect()` function](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/MongoClientOptions.html), except for 4 mongoose-specific options explained below.
+ * @param {Boolean} [options.bufferCommands=true] Mongoose specific option. Set to false to [disable buffering](https://mongoosejs.com/docs/faq.html#callback_never_executes) on all models associated with this connection.
+ * @param {String} [options.dbName] The name of the database you want to use. If not provided, Mongoose uses the database name from connection string.
+ * @param {String} [options.user] username for authentication, equivalent to `options.auth.user`. Maintained for backwards compatibility.
+ * @param {String} [options.pass] password for authentication, equivalent to `options.auth.password`. Maintained for backwards compatibility.
+ * @param {Boolean} [options.autoIndex=true] Mongoose-specific option. Set to false to disable automatic index creation for all models associated with this connection.
+ * @param {Class} [options.promiseLibrary] Sets the [underlying driver's promise library](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/MongoClientOptions.html#promiseLibrary).
+ * @param {Number} [options.maxPoolSize=5] The maximum number of sockets the MongoDB driver will keep open for this connection. Keep in mind that MongoDB only allows one operation per socket at a time, so you may want to increase this if you find you have a few slow queries that are blocking faster queries from proceeding. See [Slow Trains in MongoDB and Node.js](https://thecodebarbarian.com/slow-trains-in-mongodb-and-nodejs).
+ * @param {Number} [options.minPoolSize=1] The minimum number of sockets the MongoDB driver will keep open for this connection. Keep in mind that MongoDB only allows one operation per socket at a time, so you may want to increase this if you find you have a few slow queries that are blocking faster queries from proceeding. See [Slow Trains in MongoDB and Node.js](https://thecodebarbarian.com/slow-trains-in-mongodb-and-nodejs).
+ * @param {Number} [options.socketTimeoutMS=0] How long the MongoDB driver will wait before killing a socket due to inactivity _after initial connection_. Defaults to 0, which means Node.js will not time out the socket due to inactivity. A socket may be inactive because of either no activity or a long-running operation. This option is passed to [Node.js `socket#setTimeout()` function](https://nodejs.org/api/net.html#net_socket_settimeout_timeout_callback) after the MongoDB driver successfully completes.
+ * @param {Number} [options.family=0] Passed transparently to [Node.js' `dns.lookup()`](https://nodejs.org/api/dns.html#dns_dns_lookup_hostname_options_callback) function. May be either `0`, `4`, or `6`. `4` means use IPv4 only, `6` means use IPv6 only, `0` means try both.
+ * @return {Connection} the created Connection object. Connections are not thenable, so you can't do `await mongoose.createConnection()`. To await use `mongoose.createConnection(uri).asPromise()` instead.
+ * @api public
+ */
+
+Mongoose.prototype.createConnection = function createConnection(uri, options) {
+  const _mongoose = this instanceof Mongoose ? this : mongoose;
+
+  const Connection = _mongoose.__driver.Connection;
+  const conn = new Connection(_mongoose);
+  _mongoose.connections.push(conn);
+  _mongoose.nextConnectionId++;
+  _mongoose.events.emit('createConnection', conn);
+
+  if (arguments.length > 0) {
+    conn.openUri(uri, { ...options, _fireAndForget: true });
+  }
+
+  return conn;
+};
+
+/**
+ * Opens the default mongoose connection.
+ *
+ * #### Example:
+ *
+ *     mongoose.connect('mongodb://user:pass@127.0.0.1:port/database');
+ *
+ *     // replica sets
+ *     const uri = 'mongodb://user:pass@127.0.0.1:port,anotherhost:port,yetanother:port/mydatabase';
+ *     mongoose.connect(uri);
+ *
+ *     // with options
+ *     mongoose.connect(uri, options);
+ *
+ *     // Using `await` throws "MongooseServerSelectionError: Server selection timed out after 30000 ms"
+ *     // if Mongoose can't connect.
+ *     const uri = 'mongodb://nonexistent.domain:27000';
+ *     await mongoose.connect(uri);
+ *
+ * @param {String} uri mongodb URI to connect to
+ * @param {Object} [options] passed down to the [MongoDB driver's `connect()` function](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/MongoClientOptions.html), except for 4 mongoose-specific options explained below.
+ * @param {Boolean} [options.bufferCommands=true] Mongoose specific option. Set to false to [disable buffering](https://mongoosejs.com/docs/faq.html#callback_never_executes) on all models associated with this connection.
+ * @param {Number} [options.bufferTimeoutMS=10000] Mongoose specific option. If `bufferCommands` is true, Mongoose will throw an error after `bufferTimeoutMS` if the operation is still buffered.
+ * @param {String} [options.dbName] The name of the database we want to use. If not provided, use database name from connection string.
+ * @param {String} [options.user] username for authentication, equivalent to `options.auth.user`. Maintained for backwards compatibility.
+ * @param {String} [options.pass] password for authentication, equivalent to `options.auth.password`. Maintained for backwards compatibility.
+ * @param {Number} [options.maxPoolSize=100] The maximum number of sockets the MongoDB driver will keep open for this connection. Keep in mind that MongoDB only allows one operation per socket at a time, so you may want to increase this if you find you have a few slow queries that are blocking faster queries from proceeding. See [Slow Trains in MongoDB and Node.js](https://thecodebarbarian.com/slow-trains-in-mongodb-and-nodejs).
+ * @param {Number} [options.minPoolSize=0] The minimum number of sockets the MongoDB driver will keep open for this connection.
+ * @param {Number} [options.serverSelectionTimeoutMS] If `useUnifiedTopology = true`, the MongoDB driver will try to find a server to send any given operation to, and keep retrying for `serverSelectionTimeoutMS` milliseconds before erroring out. If not set, the MongoDB driver defaults to using `30000` (30 seconds).
+ * @param {Number} [options.heartbeatFrequencyMS] If `useUnifiedTopology = true`, the MongoDB driver sends a heartbeat every `heartbeatFrequencyMS` to check on the status of the connection. A heartbeat is subject to `serverSelectionTimeoutMS`, so the MongoDB driver will retry failed heartbeats for up to 30 seconds by default. Mongoose only emits a `'disconnected'` event after a heartbeat has failed, so you may want to decrease this setting to reduce the time between when your server goes down and when Mongoose emits `'disconnected'`. We recommend you do **not** set this setting below 1000, too many heartbeats can lead to performance degradation.
+ * @param {Boolean} [options.autoIndex=true] Mongoose-specific option. Set to false to disable automatic index creation for all models associated with this connection.
+ * @param {Class} [options.promiseLibrary] Sets the [underlying driver's promise library](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/MongoClientOptions.html#promiseLibrary).
+ * @param {Number} [options.socketTimeoutMS=0] How long the MongoDB driver will wait before killing a socket due to inactivity _after initial connection_. A socket may be inactive because of either no activity or a long-running operation. `socketTimeoutMS` defaults to 0, which means Node.js will not time out the socket due to inactivity. This option is passed to [Node.js `socket#setTimeout()` function](https://nodejs.org/api/net.html#net_socket_settimeout_timeout_callback) after the MongoDB driver successfully completes.
+ * @param {Number} [options.family=0] Passed transparently to [Node.js' `dns.lookup()`](https://nodejs.org/api/dns.html#dns_dns_lookup_hostname_options_callback) function. May be either `0`, `4`, or `6`. `4` means use IPv4 only, `6` means use IPv6 only, `0` means try both.
+ * @param {Boolean} [options.autoCreate=false] Set to `true` to make Mongoose automatically call `createCollection()` on every model created on this connection.
+ * @see Mongoose#createConnection https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.createConnection()
+ * @api public
+ * @return {Promise} resolves to `this` if connection succeeded
+ */
+
+Mongoose.prototype.connect = async function connect(uri, options) {
+  if (typeof options === 'function' || (arguments.length >= 3 && typeof arguments[2] === 'function')) {
+    throw new MongooseError('Mongoose.prototype.connect() no longer accepts a callback');
+  }
+
+  const _mongoose = this instanceof Mongoose ? this : mongoose;
+  if (_mongoose.connection == null) {
+    _createDefaultConnection(_mongoose);
+  }
+  const conn = _mongoose.connection;
+
+  return conn.openUri(uri, options).then(() => _mongoose);
+};
+
+/**
+ * Runs `.close()` on all connections in parallel.
+ *
+ * @return {Promise} resolves when all connections are closed, or rejects with the first error that occurred.
+ * @api public
+ */
+
+Mongoose.prototype.disconnect = async function disconnect() {
+  if (arguments.length >= 1 && typeof arguments[0] === 'function') {
+    throw new MongooseError('Mongoose.prototype.disconnect() no longer accepts a callback');
+  }
+
+  const _mongoose = this instanceof Mongoose ? this : mongoose;
+
+  const remaining = _mongoose.connections.length;
+  if (remaining <= 0) {
+    return;
+  }
+  await Promise.all(_mongoose.connections.map(conn => conn.close()));
+};
+
+/**
+ * _Requires MongoDB >= 3.6.0._ Starts a [MongoDB session](https://www.mongodb.com/docs/manual/release-notes/3.6/#client-sessions)
+ * for benefits like causal consistency, [retryable writes](https://www.mongodb.com/docs/manual/core/retryable-writes/),
+ * and [transactions](https://thecodebarbarian.com/a-node-js-perspective-on-mongodb-4-transactions.html).
+ *
+ * Calling `mongoose.startSession()` is equivalent to calling `mongoose.connection.startSession()`.
+ * Sessions are scoped to a connection, so calling `mongoose.startSession()`
+ * starts a session on the [default mongoose connection](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.connection).
+ *
+ * @param {Object} [options] see the [mongodb driver options](https://mongodb.github.io/node-mongodb-native/4.9/classes/MongoClient.html#startSession)
+ * @param {Boolean} [options.causalConsistency=true] set to false to disable causal consistency
+ * @return {Promise<ClientSession>} promise that resolves to a MongoDB driver `ClientSession`
+ * @api public
+ */
+
+Mongoose.prototype.startSession = function startSession() {
+  const _mongoose = this instanceof Mongoose ? this : mongoose;
+
+  return _mongoose.connection.startSession.apply(_mongoose.connection, arguments);
+};
+
+/**
+ * Getter/setter around function for pluralizing collection names.
+ *
+ * @param {Function|null} [fn] overwrites the function used to pluralize collection names
+ * @return {Function|null} the current function used to pluralize collection names, defaults to the legacy function from `mongoose-legacy-pluralize`.
+ * @api public
+ */
+
+Mongoose.prototype.pluralize = function pluralize(fn) {
+  const _mongoose = this instanceof Mongoose ? this : mongoose;
+
+  if (arguments.length > 0) {
+    _mongoose._pluralize = fn;
+  }
+  return _mongoose._pluralize;
+};
+
+/**
+ * Defines a model or retrieves it.
+ *
+ * Models defined on the `mongoose` instance are available to all connection
+ * created by the same `mongoose` instance.
+ *
+ * If you call `mongoose.model()` with twice the same name but a different schema,
+ * you will get an `OverwriteModelError`. If you call `mongoose.model()` with
+ * the same name and same schema, you'll get the same schema back.
+ *
+ * #### Example:
+ *
+ *     const mongoose = require('mongoose');
+ *
+ *     // define an Actor model with this mongoose instance
+ *     const schema = new Schema({ name: String });
+ *     mongoose.model('Actor', schema);
+ *
+ *     // create a new connection
+ *     const conn = mongoose.createConnection(..);
+ *
+ *     // create Actor model
+ *     const Actor = conn.model('Actor', schema);
+ *     conn.model('Actor') === Actor; // true
+ *     conn.model('Actor', schema) === Actor; // true, same schema
+ *     conn.model('Actor', schema, 'actors') === Actor; // true, same schema and collection name
+ *
+ *     // This throws an `OverwriteModelError` because the schema is different.
+ *     conn.model('Actor', new Schema({ name: String }));
+ *
+ * _When no `collection` argument is passed, Mongoose uses the model name. If you don't like this behavior, either pass a collection name, use `mongoose.pluralize()`, or set your schemas collection name option._
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ name: String }, { collection: 'actor' });
+ *
+ *     // or
+ *
+ *     schema.set('collection', 'actor');
+ *
+ *     // or
+ *
+ *     const collectionName = 'actor';
+ *     const M = mongoose.model('Actor', schema, collectionName);
+ *
+ * @param {String|Function} name model name or class extending Model
+ * @param {Schema} [schema] the schema to use.
+ * @param {String} [collection] name (optional, inferred from model name)
+ * @param {Object} [options]
+ * @param {Boolean} [options.overwriteModels=false] If true, overwrite existing models with the same name to avoid `OverwriteModelError`
+ * @return {Model} The model associated with `name`. Mongoose will create the model if it doesn't already exist.
+ * @api public
+ */
+
+Mongoose.prototype.model = function model(name, schema, collection, options) {
+  const _mongoose = this instanceof Mongoose ? this : mongoose;
+
+  if (typeof schema === 'string') {
+    collection = schema;
+    schema = false;
+  }
+
+  if (arguments.length === 1) {
+    const model = _mongoose.models[name];
+    if (!model) {
+      throw new _mongoose.Error.MissingSchemaError(name);
+    }
+    return model;
+  }
+
+  if (utils.isObject(schema) && !(schema instanceof Schema)) {
+    schema = new Schema(schema);
+  }
+  if (schema && !(schema instanceof Schema)) {
+    throw new _mongoose.Error('The 2nd parameter to `mongoose.model()` should be a ' +
+      'schema or a POJO');
+  }
+
+  // handle internal options from connection.model()
+  options = options || {};
+
+  const originalSchema = schema;
+  if (schema) {
+    if (_mongoose.get('cloneSchemas')) {
+      schema = schema.clone();
+    }
+    _mongoose._applyPlugins(schema);
+  }
+
+  // connection.model() may be passing a different schema for
+  // an existing model name. in this case don't read from cache.
+  const overwriteModels = _mongoose.options.hasOwnProperty('overwriteModels') ?
+    _mongoose.options.overwriteModels :
+    options.overwriteModels;
+  if (_mongoose.models.hasOwnProperty(name) && options.cache !== false && overwriteModels !== true) {
+    if (originalSchema &&
+        originalSchema.instanceOfSchema &&
+        originalSchema !== _mongoose.models[name].schema) {
+      throw new _mongoose.Error.OverwriteModelError(name);
+    }
+    if (collection && collection !== _mongoose.models[name].collection.name) {
+      // subclass current model with alternate collection
+      const model = _mongoose.models[name];
+      schema = model.prototype.schema;
+      const sub = model.__subclass(_mongoose.connection, schema, collection);
+      // do not cache the sub model
+      return sub;
+    }
+    return _mongoose.models[name];
+  }
+  if (schema == null) {
+    throw new _mongoose.Error.MissingSchemaError(name);
+  }
+
+  const model = _mongoose._model(name, schema, collection, options);
+  _mongoose.connection.models[name] = model;
+  _mongoose.models[name] = model;
+
+  return model;
+};
+
+/*!
+ * ignore
+ */
+
+Mongoose.prototype._model = function _model(name, schema, collection, options) {
+  const _mongoose = this instanceof Mongoose ? this : mongoose;
+
+  let model;
+  if (typeof name === 'function') {
+    model = name;
+    name = model.name;
+    if (!(model.prototype instanceof Model)) {
+      throw new _mongoose.Error('The provided class ' + name + ' must extend Model');
+    }
+  }
+
+  if (schema) {
+    if (_mongoose.get('cloneSchemas')) {
+      schema = schema.clone();
+    }
+    _mongoose._applyPlugins(schema);
+  }
+
+  // Apply relevant "global" options to the schema
+  if (schema == null || !('pluralization' in schema.options)) {
+    schema.options.pluralization = _mongoose.options.pluralization;
+  }
+
+  if (!collection) {
+    collection = schema.get('collection') ||
+      utils.toCollectionName(name, _mongoose.pluralize());
+  }
+
+  applyEmbeddedDiscriminators(schema);
+
+  const connection = options.connection || _mongoose.connection;
+  model = _mongoose.Model.compile(model || name, schema, collection, connection, _mongoose);
+  // Errors handled internally, so safe to ignore error
+  model.init().catch(function $modelInitNoop() {});
+
+  connection.emit('model', model);
+
+  if (schema._applyDiscriminators != null) {
+    for (const disc of schema._applyDiscriminators.keys()) {
+      const {
+        schema: discriminatorSchema,
+        options
+      } = schema._applyDiscriminators.get(disc);
+      model.discriminator(disc, discriminatorSchema, options);
+    }
+  }
+
+  return model;
+};
+
+/**
+ * Removes the model named `name` from the default connection, if it exists.
+ * You can use this function to clean up any models you created in your tests to
+ * prevent OverwriteModelErrors.
+ *
+ * Equivalent to `mongoose.connection.deleteModel(name)`.
+ *
+ * #### Example:
+ *
+ *     mongoose.model('User', new Schema({ name: String }));
+ *     console.log(mongoose.model('User')); // Model object
+ *     mongoose.deleteModel('User');
+ *     console.log(mongoose.model('User')); // undefined
+ *
+ *     // Usually useful in a Mocha `afterEach()` hook
+ *     afterEach(function() {
+ *       mongoose.deleteModel(/.+/); // Delete every model
+ *     });
+ *
+ * @api public
+ * @param {String|RegExp} name if string, the name of the model to remove. If regexp, removes all models whose name matches the regexp.
+ * @return {Mongoose} this
+ */
+
+Mongoose.prototype.deleteModel = function deleteModel(name) {
+  const _mongoose = this instanceof Mongoose ? this : mongoose;
+
+  _mongoose.connection.deleteModel(name);
+  delete _mongoose.models[name];
+  return _mongoose;
+};
+
+/**
+ * Returns an array of model names created on this instance of Mongoose.
+ *
+ * #### Note:
+ *
+ * _Does not include names of models created using `connection.model()`._
+ *
+ * @api public
+ * @return {Array}
+ */
+
+Mongoose.prototype.modelNames = function modelNames() {
+  const _mongoose = this instanceof Mongoose ? this : mongoose;
+
+  const names = Object.keys(_mongoose.models);
+  return names;
+};
+
+/**
+ * Applies global plugins to `schema`.
+ *
+ * @param {Schema} schema
+ * @api private
+ */
+
+Mongoose.prototype._applyPlugins = function _applyPlugins(schema, options) {
+  const _mongoose = this instanceof Mongoose ? this : mongoose;
+
+  options = options || {};
+  options.applyPluginsToDiscriminators = _mongoose.options && _mongoose.options.applyPluginsToDiscriminators || false;
+  options.applyPluginsToChildSchemas = typeof (_mongoose.options && _mongoose.options.applyPluginsToChildSchemas) === 'boolean' ?
+    _mongoose.options.applyPluginsToChildSchemas :
+    true;
+  applyPlugins(schema, _mongoose.plugins, options, '$globalPluginsApplied');
+};
+
+/**
+ * Declares a global plugin executed on all Schemas.
+ *
+ * Equivalent to calling `.plugin(fn)` on each Schema you create.
+ *
+ * @param {Function} fn plugin callback
+ * @param {Object} [opts] optional options
+ * @return {Mongoose} this
+ * @see plugins https://mongoosejs.com/docs/plugins.html
+ * @api public
+ */
+
+Mongoose.prototype.plugin = function plugin(fn, opts) {
+  const _mongoose = this instanceof Mongoose ? this : mongoose;
+
+  _mongoose.plugins.push([fn, opts]);
+  return _mongoose;
+};
+
+/**
+ * The Mongoose module's default connection. Equivalent to `mongoose.connections[0]`, see [`connections`](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.connections).
+ *
+ * #### Example:
+ *
+ *     const mongoose = require('mongoose');
+ *     mongoose.connect(...);
+ *     mongoose.connection.on('error', cb);
+ *
+ * This is the connection used by default for every model created using [mongoose.model](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.model()).
+ *
+ * To create a new connection, use [`createConnection()`](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.createConnection()).
+ *
+ * @memberOf Mongoose
+ * @instance
+ * @property {Connection} connection
+ * @api public
+ */
+
+Mongoose.prototype.__defineGetter__('connection', function() {
+  return this.connections[0];
+});
+
+Mongoose.prototype.__defineSetter__('connection', function(v) {
+  if (v instanceof this.__driver.Connection) {
+    this.connections[0] = v;
+    this.models = v.models;
+  }
+});
+
+/**
+ * An array containing all [connections](connection.html) associated with this
+ * Mongoose instance. By default, there is 1 connection. Calling
+ * [`createConnection()`](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.createConnection()) adds a connection
+ * to this array.
+ *
+ * #### Example:
+ *
+ *     const mongoose = require('mongoose');
+ *     mongoose.connections.length; // 1, just the default connection
+ *     mongoose.connections[0] === mongoose.connection; // true
+ *
+ *     mongoose.createConnection('mongodb://127.0.0.1:27017/test');
+ *     mongoose.connections.length; // 2
+ *
+ * @memberOf Mongoose
+ * @instance
+ * @property {Array} connections
+ * @api public
+ */
+
+Mongoose.prototype.connections;
+
+/**
+ * An integer containing the value of the next connection id. Calling
+ * [`createConnection()`](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.createConnection()) increments
+ * this value.
+ *
+ * #### Example:
+ *
+ *     const mongoose = require('mongoose');
+ *     mongoose.createConnection(); // id `0`, `nextConnectionId` becomes `1`
+ *     mongoose.createConnection(); // id `1`, `nextConnectionId` becomes `2`
+ *     mongoose.connections[0].destroy() // Removes connection with id `0`
+ *     mongoose.createConnection(); // id `2`, `nextConnectionId` becomes `3`
+ *
+ * @memberOf Mongoose
+ * @instance
+ * @property {Number} nextConnectionId
+ * @api private
+ */
+
+Mongoose.prototype.nextConnectionId;
+
+/**
+ * The Mongoose Aggregate constructor
+ *
+ * @method Aggregate
+ * @api public
+ */
+
+Mongoose.prototype.Aggregate = Aggregate;
+
+/**
+ * The Mongoose Collection constructor
+ *
+ * @memberOf Mongoose
+ * @instance
+ * @method Collection
+ * @api public
+ */
+
+Object.defineProperty(Mongoose.prototype, 'Collection', {
+  get: function() {
+    return this.__driver.Collection;
+  },
+  set: function(Collection) {
+    this.__driver.Collection = Collection;
+  }
+});
+
+/**
+ * The Mongoose [Connection](https://mongoosejs.com/docs/api/connection.html#Connection()) constructor
+ *
+ * @memberOf Mongoose
+ * @instance
+ * @method Connection
+ * @api public
+ */
+
+Object.defineProperty(Mongoose.prototype, 'Connection', {
+  get: function() {
+    return this.__driver.Connection;
+  },
+  set: function(Connection) {
+    if (Connection === this.__driver.Connection) {
+      return;
+    }
+
+    this.__driver.Connection = Connection;
+  }
+});
+
+/**
+ * The Mongoose version
+ *
+ * #### Example:
+ *
+ *     console.log(mongoose.version); // '5.x.x'
+ *
+ * @property version
+ * @api public
+ */
+
+Mongoose.prototype.version = pkg.version;
+
+/**
+ * The Mongoose constructor
+ *
+ * The exports of the mongoose module is an instance of this class.
+ *
+ * #### Example:
+ *
+ *     const mongoose = require('mongoose');
+ *     const mongoose2 = new mongoose.Mongoose();
+ *
+ * @method Mongoose
+ * @api public
+ */
+
+Mongoose.prototype.Mongoose = Mongoose;
+
+/**
+ * The Mongoose [Schema](https://mongoosejs.com/docs/api/schema.html#Schema()) constructor
+ *
+ * #### Example:
+ *
+ *     const mongoose = require('mongoose');
+ *     const Schema = mongoose.Schema;
+ *     const CatSchema = new Schema(..);
+ *
+ * @method Schema
+ * @api public
+ */
+
+Mongoose.prototype.Schema = Schema;
+
+/**
+ * The Mongoose [SchemaType](https://mongoosejs.com/docs/api/schematype.html#SchemaType()) constructor
+ *
+ * @method SchemaType
+ * @api public
+ */
+
+Mongoose.prototype.SchemaType = SchemaType;
+
+/**
+ * The various Mongoose SchemaTypes.
+ *
+ * #### Note:
+ *
+ * _Alias of mongoose.Schema.Types for backwards compatibility._
+ *
+ * @property SchemaTypes
+ * @see Schema.SchemaTypes https://mongoosejs.com/docs/schematypes.html
+ * @api public
+ */
+
+Mongoose.prototype.SchemaTypes = Schema.Types;
+
+/**
+ * The Mongoose [VirtualType](https://mongoosejs.com/docs/api/virtualtype.html#VirtualType()) constructor
+ *
+ * @method VirtualType
+ * @api public
+ */
+
+Mongoose.prototype.VirtualType = VirtualType;
+
+/**
+ * The various Mongoose Types.
+ *
+ * #### Example:
+ *
+ *     const mongoose = require('mongoose');
+ *     const array = mongoose.Types.Array;
+ *
+ * #### Types:
+ *
+ * - [Array](https://mongoosejs.com/docs/schematypes.html#arrays)
+ * - [Buffer](https://mongoosejs.com/docs/schematypes.html#buffers)
+ * - [Embedded](https://mongoosejs.com/docs/schematypes.html#schemas)
+ * - [DocumentArray](https://mongoosejs.com/docs/api/documentarraypath.html)
+ * - [Decimal128](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.Decimal128)
+ * - [ObjectId](https://mongoosejs.com/docs/schematypes.html#objectids)
+ * - [Map](https://mongoosejs.com/docs/schematypes.html#maps)
+ * - [Subdocument](https://mongoosejs.com/docs/schematypes.html#schemas)
+ * - [Int32](https://mongoosejs.com/docs/schematypes.html#int32)
+ *
+ * Using this exposed access to the `ObjectId` type, we can construct ids on demand.
+ *
+ *     const ObjectId = mongoose.Types.ObjectId;
+ *     const id1 = new ObjectId;
+ *
+ * @property Types
+ * @api public
+ */
+
+Mongoose.prototype.Types = Types;
+
+/**
+ * The Mongoose [Query](https://mongoosejs.com/docs/api/query.html#Query()) constructor.
+ *
+ * @method Query
+ * @api public
+ */
+
+Mongoose.prototype.Query = Query;
+
+/**
+ * The Mongoose [Model](https://mongoosejs.com/docs/api/model.html#Model()) constructor.
+ *
+ * @method Model
+ * @api public
+ */
+
+Mongoose.prototype.Model = Model;
+
+/**
+ * The Mongoose [Document](https://mongoosejs.com/docs/api/document.html#Document()) constructor.
+ *
+ * @method Document
+ * @api public
+ */
+
+Mongoose.prototype.Document = Document;
+
+/**
+ * The Mongoose DocumentProvider constructor. Mongoose users should not have to
+ * use this directly
+ *
+ * @method DocumentProvider
+ * @api public
+ */
+
+Mongoose.prototype.DocumentProvider = require('./documentProvider');
+
+/**
+ * The Mongoose ObjectId [SchemaType](https://mongoosejs.com/docs/schematypes.html). Used for
+ * declaring paths in your schema that should be
+ * [MongoDB ObjectIds](https://www.mongodb.com/docs/manual/reference/method/ObjectId/).
+ * Do not use this to create a new ObjectId instance, use `mongoose.Types.ObjectId`
+ * instead.
+ *
+ * #### Example:
+ *
+ *     const childSchema = new Schema({ parentId: mongoose.ObjectId });
+ *
+ * @property ObjectId
+ * @api public
+ */
+
+Mongoose.prototype.ObjectId = SchemaTypes.ObjectId;
+
+/**
+ * Returns true if Mongoose can cast the given value to an ObjectId, or
+ * false otherwise.
+ *
+ * #### Example:
+ *
+ *     mongoose.isValidObjectId(new mongoose.Types.ObjectId()); // true
+ *     mongoose.isValidObjectId('0123456789ab'); // true
+ *     mongoose.isValidObjectId(6); // true
+ *     mongoose.isValidObjectId(new User({ name: 'test' })); // true
+ *
+ *     mongoose.isValidObjectId({ test: 42 }); // false
+ *
+ * @method isValidObjectId
+ * @param {Any} v
+ * @returns {boolean} true if `v` is something Mongoose can coerce to an ObjectId
+ * @api public
+ */
+
+Mongoose.prototype.isValidObjectId = function isValidObjectId(v) {
+  const _mongoose = this instanceof Mongoose ? this : mongoose;
+  return _mongoose.Types.ObjectId.isValid(v);
+};
+
+/**
+ * Returns true if the given value is a Mongoose ObjectId (using `instanceof`) or if the
+ * given value is a 24 character hex string, which is the most commonly used string representation
+ * of an ObjectId.
+ *
+ * This function is similar to `isValidObjectId()`, but considerably more strict, because
+ * `isValidObjectId()` will return `true` for _any_ value that Mongoose can convert to an
+ * ObjectId. That includes Mongoose documents, any string of length 12, and any number.
+ * `isObjectIdOrHexString()` returns true only for `ObjectId` instances or 24 character hex
+ * strings, and will return false for numbers, documents, and strings of length 12.
+ *
+ * #### Example:
+ *
+ *     mongoose.isObjectIdOrHexString(new mongoose.Types.ObjectId()); // true
+ *     mongoose.isObjectIdOrHexString('62261a65d66c6be0a63c051f'); // true
+ *
+ *     mongoose.isObjectIdOrHexString('0123456789ab'); // false
+ *     mongoose.isObjectIdOrHexString(6); // false
+ *     mongoose.isObjectIdOrHexString(new User({ name: 'test' })); // false
+ *     mongoose.isObjectIdOrHexString({ test: 42 }); // false
+ *
+ * @method isObjectIdOrHexString
+ * @param {Any} v
+ * @returns {boolean} true if `v` is an ObjectId instance _or_ a 24 char hex string
+ * @api public
+ */
+
+Mongoose.prototype.isObjectIdOrHexString = function isObjectIdOrHexString(v) {
+  return isBsonType(v, 'ObjectId') || (typeof v === 'string' && objectIdHexRegexp.test(v));
+};
+
+/**
+ *
+ * Syncs all the indexes for the models registered with this connection.
+ *
+ * @param {Object} options
+ * @param {Boolean} options.continueOnError `false` by default. If set to `true`, mongoose will not throw an error if one model syncing failed, and will return an object where the keys are the names of the models, and the values are the results/errors for each model.
+ * @return {Promise} Returns a Promise, when the Promise resolves the value is a list of the dropped indexes.
+ */
+Mongoose.prototype.syncIndexes = function syncIndexes(options) {
+  const _mongoose = this instanceof Mongoose ? this : mongoose;
+  return _mongoose.connection.syncIndexes(options);
+};
+
+/**
+ * The Mongoose Decimal128 [SchemaType](https://mongoosejs.com/docs/schematypes.html). Used for
+ * declaring paths in your schema that should be
+ * [128-bit decimal floating points](https://thecodebarbarian.com/a-nodejs-perspective-on-mongodb-34-decimal.html).
+ * Do not use this to create a new Decimal128 instance, use `mongoose.Types.Decimal128`
+ * instead.
+ *
+ * #### Example:
+ *
+ *     const vehicleSchema = new Schema({ fuelLevel: mongoose.Decimal128 });
+ *
+ * @property Decimal128
+ * @api public
+ */
+
+Mongoose.prototype.Decimal128 = SchemaTypes.Decimal128;
+
+
+/**
+ * The Mongoose Mixed [SchemaType](https://mongoosejs.com/docs/schematypes.html). Used for
+ * declaring paths in your schema that Mongoose's change tracking, casting,
+ * and validation should ignore.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ arbitrary: mongoose.Mixed });
+ *
+ * @property Mixed
+ * @api public
+ */
+
+Mongoose.prototype.Mixed = SchemaTypes.Mixed;
+
+/**
+ * The Mongoose Date [SchemaType](https://mongoosejs.com/docs/schematypes.html).
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ test: Date });
+ *     schema.path('test') instanceof mongoose.Date; // true
+ *
+ * @property Date
+ * @api public
+ */
+
+Mongoose.prototype.Date = SchemaTypes.Date;
+
+/**
+ * The Mongoose Number [SchemaType](https://mongoosejs.com/docs/schematypes.html). Used for
+ * declaring paths in your schema that Mongoose should cast to numbers.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ num: mongoose.Number });
+ *     // Equivalent to:
+ *     const schema = new Schema({ num: 'number' });
+ *
+ * @property Number
+ * @api public
+ */
+
+Mongoose.prototype.Number = SchemaTypes.Number;
+
+/**
+ * The [MongooseError](https://mongoosejs.com/docs/api/error.html#Error()) constructor.
+ *
+ * @method Error
+ * @api public
+ */
+
+Mongoose.prototype.Error = MongooseError;
+Mongoose.prototype.MongooseError = MongooseError;
+
+/**
+ * Mongoose uses this function to get the current time when setting
+ * [timestamps](https://mongoosejs.com/docs/guide.html#timestamps). You may stub out this function
+ * using a tool like [Sinon](https://www.npmjs.com/package/sinon) for testing.
+ *
+ * @method now
+ * @returns Date the current time
+ * @api public
+ */
+
+Mongoose.prototype.now = function now() { return new Date(); };
+
+/**
+ * The Mongoose CastError constructor
+ *
+ * @method CastError
+ * @param {String} type The name of the type
+ * @param {Any} value The value that failed to cast
+ * @param {String} path The path `a.b.c` in the doc where this cast error occurred
+ * @param {Error} [reason] The original error that was thrown
+ * @api public
+ */
+
+Mongoose.prototype.CastError = MongooseError.CastError;
+
+/**
+ * The constructor used for schematype options
+ *
+ * @method SchemaTypeOptions
+ * @api public
+ */
+
+Mongoose.prototype.SchemaTypeOptions = require('./options/schemaTypeOptions');
+
+/**
+ * The [mquery](https://github.com/aheckmann/mquery) query builder Mongoose uses.
+ *
+ * @property mquery
+ * @api public
+ */
+
+Mongoose.prototype.mquery = require('mquery');
+
+/**
+ * Sanitizes query filters against [query selector injection attacks](https://thecodebarbarian.com/2014/09/04/defending-against-query-selector-injection-attacks.html)
+ * by wrapping any nested objects that have a property whose name starts with `$` in a `$eq`.
+ *
+ * ```javascript
+ * const obj = { username: 'val', pwd: { $ne: null } };
+ * sanitizeFilter(obj);
+ * obj; // { username: 'val', pwd: { $eq: { $ne: null } } });
+ * ```
+ *
+ * @method sanitizeFilter
+ * @param {Object} filter
+ * @returns Object the sanitized object
+ * @api public
+ */
+
+Mongoose.prototype.sanitizeFilter = sanitizeFilter;
+
+/**
+ * Tells `sanitizeFilter()` to skip the given object when filtering out potential [query selector injection attacks](https://thecodebarbarian.com/2014/09/04/defending-against-query-selector-injection-attacks.html).
+ * Use this method when you have a known query selector that you want to use.
+ *
+ * ```javascript
+ * const obj = { username: 'val', pwd: trusted({ $type: 'string', $eq: 'my secret' }) };
+ * sanitizeFilter(obj);
+ *
+ * // Note that `sanitizeFilter()` did not add `$eq` around `$type`.
+ * obj; // { username: 'val', pwd: { $type: 'string', $eq: 'my secret' } });
+ * ```
+ *
+ * @method trusted
+ * @param {Object} obj
+ * @returns Object the passed in object
+ * @api public
+ */
+
+Mongoose.prototype.trusted = trusted;
+
+/**
+ * Use this function in `pre()` middleware to skip calling the wrapped function.
+ *
+ * #### Example:
+ *
+ *     schema.pre('save', function() {
+ *       // Will skip executing `save()`, but will execute post hooks as if
+ *       // `save()` had executed with the result `{ matchedCount: 0 }`
+ *       return mongoose.skipMiddlewareFunction({ matchedCount: 0 });
+ *     });
+ *
+ * @method skipMiddlewareFunction
+ * @param {any} result
+ * @api public
+ */
+
+Mongoose.prototype.skipMiddlewareFunction = Kareem.skipWrappedFunction;
+
+/**
+ * Use this function in `post()` middleware to replace the result
+ *
+ * #### Example:
+ *
+ *     schema.post('find', function(res) {
+ *       // Normally you have to modify `res` in place. But with
+ *       // `overwriteMiddlewarResult()`, you can make `find()` return a
+ *       // completely different value.
+ *       return mongoose.overwriteMiddlewareResult(res.filter(doc => !doc.isDeleted));
+ *     });
+ *
+ * @method overwriteMiddlewareResult
+ * @param {any} result
+ * @api public
+ */
+
+Mongoose.prototype.overwriteMiddlewareResult = Kareem.overwriteResult;
+
+/**
+ * Takes in an object and deletes any keys from the object whose values
+ * are strictly equal to `undefined`.
+ * This function is useful for query filters because Mongoose treats
+ * `TestModel.find({ name: undefined })` as `TestModel.find({ name: null })`.
+ *
+ * #### Example:
+ *
+ *     const filter = { name: 'John', age: undefined, status: 'active' };
+ *     mongoose.omitUndefined(filter); // { name: 'John', status: 'active' }
+ *     filter; // { name: 'John', status: 'active' }
+ *
+ *     await UserModel.findOne(mongoose.omitUndefined(filter));
+ *
+ * @method omitUndefined
+ * @param {Object} [val] the object to remove undefined keys from
+ * @returns {Object} the object passed in
+ * @api public
+ */
+
+Mongoose.prototype.omitUndefined = require('./helpers/omitUndefined');
+
+/*!
+ * Create a new default connection (`mongoose.connection`) for a Mongoose instance.
+ * No-op if there is already a default connection.
+ */
+
+function _createDefaultConnection(mongoose) {
+  if (mongoose.connection) {
+    return;
+  }
+  const conn = mongoose.createConnection(); // default connection
+  conn[defaultConnectionSymbol] = true;
+  conn.models = mongoose.models;
+}
+
+/**
+ * The exports object is an instance of Mongoose.
+ *
+ * @api private
+ */
+
+const mongoose = module.exports = exports = new Mongoose({
+  [defaultMongooseSymbol]: true
+});
diff --git a/backend/node_modules/mongoose/lib/options.js b/backend/node_modules/mongoose/lib/options.js
new file mode 100644
index 0000000..bbdcda8
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/options.js
@@ -0,0 +1,17 @@
+'use strict';
+
+/*!
+ * ignore
+ */
+
+exports.internalToObjectOptions = {
+  transform: false,
+  virtuals: false,
+  getters: false,
+  _skipDepopulateTopLevel: true,
+  depopulate: true,
+  flattenDecimals: false,
+  useProjection: false,
+  versionKey: true,
+  flattenObjectIds: false
+};
diff --git a/backend/node_modules/mongoose/lib/options/populateOptions.js b/backend/node_modules/mongoose/lib/options/populateOptions.js
new file mode 100644
index 0000000..ad743fe
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/options/populateOptions.js
@@ -0,0 +1,36 @@
+'use strict';
+
+const clone = require('../helpers/clone');
+
+class PopulateOptions {
+  constructor(obj) {
+    this._docs = {};
+    this._childDocs = [];
+
+    if (obj == null) {
+      return;
+    }
+    obj = clone(obj);
+    Object.assign(this, obj);
+    if (typeof obj.subPopulate === 'object') {
+      this.populate = obj.subPopulate;
+    }
+
+
+    if (obj.perDocumentLimit != null && obj.limit != null) {
+      throw new Error('Can not use `limit` and `perDocumentLimit` at the same time. Path: `' + obj.path + '`.');
+    }
+  }
+}
+
+/**
+ * The connection used to look up models by name. If not specified, Mongoose
+ * will default to using the connection associated with the model in
+ * `PopulateOptions#model`.
+ *
+ * @memberOf PopulateOptions
+ * @property {Connection} connection
+ * @api public
+ */
+
+module.exports = PopulateOptions;
diff --git a/backend/node_modules/mongoose/lib/options/propertyOptions.js b/backend/node_modules/mongoose/lib/options/propertyOptions.js
new file mode 100644
index 0000000..cb95f35
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/options/propertyOptions.js
@@ -0,0 +1,8 @@
+'use strict';
+
+module.exports = Object.freeze({
+  enumerable: true,
+  configurable: true,
+  writable: true,
+  value: void 0
+});
diff --git a/backend/node_modules/mongoose/lib/options/saveOptions.js b/backend/node_modules/mongoose/lib/options/saveOptions.js
new file mode 100644
index 0000000..286987e
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/options/saveOptions.js
@@ -0,0 +1,16 @@
+'use strict';
+
+const clone = require('../helpers/clone');
+
+class SaveOptions {
+  constructor(obj) {
+    if (obj == null) {
+      return;
+    }
+    Object.assign(this, clone(obj));
+  }
+}
+
+SaveOptions.prototype.__subdocs = null;
+
+module.exports = SaveOptions;
diff --git a/backend/node_modules/mongoose/lib/options/schemaArrayOptions.js b/backend/node_modules/mongoose/lib/options/schemaArrayOptions.js
new file mode 100644
index 0000000..01f4fb7
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/options/schemaArrayOptions.js
@@ -0,0 +1,78 @@
+'use strict';
+
+const SchemaTypeOptions = require('./schemaTypeOptions');
+
+/**
+ * The options defined on an Array schematype.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ tags: [String] });
+ *     schema.path('tags').options; // SchemaArrayOptions instance
+ *
+ * @api public
+ * @inherits SchemaTypeOptions
+ * @constructor SchemaArrayOptions
+ */
+
+class SchemaArrayOptions extends SchemaTypeOptions {}
+
+const opts = require('./propertyOptions');
+
+/**
+ * If this is an array of strings, an array of allowed values for this path.
+ * Throws an error if this array isn't an array of strings.
+ *
+ * @api public
+ * @property enum
+ * @memberOf SchemaArrayOptions
+ * @type {Array}
+ * @instance
+ */
+
+Object.defineProperty(SchemaArrayOptions.prototype, 'enum', opts);
+
+/**
+ * If set, specifies the type of this array's values. Equivalent to setting
+ * `type` to an array whose first element is `of`.
+ *
+ * #### Example:
+ *
+ *     // `arr` is an array of numbers.
+ *     new Schema({ arr: [Number] });
+ *     // Equivalent way to define `arr` as an array of numbers
+ *     new Schema({ arr: { type: Array, of: Number } });
+ *
+ * @api public
+ * @property of
+ * @memberOf SchemaArrayOptions
+ * @type {Function|String}
+ * @instance
+ */
+
+Object.defineProperty(SchemaArrayOptions.prototype, 'of', opts);
+
+/**
+ * If set to `false`, will always deactivate casting non-array values to arrays.
+ * If set to `true`, will cast non-array values to arrays if `init` and `SchemaArray.options.castNonArrays` are also `true`
+ *
+ * #### Example:
+ *
+ *     const Model = db.model('Test', new Schema({ x1: { castNonArrays: false, type: [String] } }));
+ *     const doc = new Model({ x1: "some non-array value" });
+ *     await doc.validate(); // Errors with "CastError"
+ *
+ * @api public
+ * @property castNonArrays
+ * @memberOf SchemaArrayOptions
+ * @type {Boolean}
+ * @instance
+ */
+
+Object.defineProperty(SchemaArrayOptions.prototype, 'castNonArrays', opts);
+
+/*!
+ * ignore
+ */
+
+module.exports = SchemaArrayOptions;
diff --git a/backend/node_modules/mongoose/lib/options/schemaBufferOptions.js b/backend/node_modules/mongoose/lib/options/schemaBufferOptions.js
new file mode 100644
index 0000000..bfc12cb
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/options/schemaBufferOptions.js
@@ -0,0 +1,38 @@
+'use strict';
+
+const SchemaTypeOptions = require('./schemaTypeOptions');
+
+/**
+ * The options defined on a Buffer schematype.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ bitmap: Buffer });
+ *     schema.path('bitmap').options; // SchemaBufferOptions instance
+ *
+ * @api public
+ * @inherits SchemaTypeOptions
+ * @constructor SchemaBufferOptions
+ */
+
+class SchemaBufferOptions extends SchemaTypeOptions {}
+
+const opts = require('./propertyOptions');
+
+/**
+ * Set the default subtype for this buffer.
+ *
+ * @api public
+ * @property subtype
+ * @memberOf SchemaBufferOptions
+ * @type {Number}
+ * @instance
+ */
+
+Object.defineProperty(SchemaBufferOptions.prototype, 'subtype', opts);
+
+/*!
+ * ignore
+ */
+
+module.exports = SchemaBufferOptions;
diff --git a/backend/node_modules/mongoose/lib/options/schemaDateOptions.js b/backend/node_modules/mongoose/lib/options/schemaDateOptions.js
new file mode 100644
index 0000000..a4ef62b
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/options/schemaDateOptions.js
@@ -0,0 +1,71 @@
+'use strict';
+
+const SchemaTypeOptions = require('./schemaTypeOptions');
+
+/**
+ * The options defined on a Date schematype.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ startedAt: Date });
+ *     schema.path('startedAt').options; // SchemaDateOptions instance
+ *
+ * @api public
+ * @inherits SchemaTypeOptions
+ * @constructor SchemaDateOptions
+ */
+
+class SchemaDateOptions extends SchemaTypeOptions {}
+
+const opts = require('./propertyOptions');
+
+/**
+ * If set, Mongoose adds a validator that checks that this path is after the
+ * given `min`.
+ *
+ * @api public
+ * @property min
+ * @memberOf SchemaDateOptions
+ * @type {Date}
+ * @instance
+ */
+
+Object.defineProperty(SchemaDateOptions.prototype, 'min', opts);
+
+/**
+ * If set, Mongoose adds a validator that checks that this path is before the
+ * given `max`.
+ *
+ * @api public
+ * @property max
+ * @memberOf SchemaDateOptions
+ * @type {Date}
+ * @instance
+ */
+
+Object.defineProperty(SchemaDateOptions.prototype, 'max', opts);
+
+/**
+ * If set, Mongoose creates a TTL index on this path.
+ *
+ * mongo TTL index `expireAfterSeconds` value will take 'expires' value expressed in seconds.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ "expireAt": { type: Date,  expires: 11 } });
+ *     // if 'expireAt' is set, then document expires at expireAt + 11 seconds
+ *
+ * @api public
+ * @property expires
+ * @memberOf SchemaDateOptions
+ * @type {Date}
+ * @instance
+ */
+
+Object.defineProperty(SchemaDateOptions.prototype, 'expires', opts);
+
+/*!
+ * ignore
+ */
+
+module.exports = SchemaDateOptions;
diff --git a/backend/node_modules/mongoose/lib/options/schemaDocumentArrayOptions.js b/backend/node_modules/mongoose/lib/options/schemaDocumentArrayOptions.js
new file mode 100644
index 0000000..ae5b07b
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/options/schemaDocumentArrayOptions.js
@@ -0,0 +1,68 @@
+'use strict';
+
+const SchemaTypeOptions = require('./schemaTypeOptions');
+
+/**
+ * The options defined on an Document Array schematype.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ users: [{ name: string }] });
+ *     schema.path('users').options; // SchemaDocumentArrayOptions instance
+ *
+ * @api public
+ * @inherits SchemaTypeOptions
+ * @constructor SchemaDocumentOptions
+ */
+
+class SchemaDocumentArrayOptions extends SchemaTypeOptions {}
+
+const opts = require('./propertyOptions');
+
+/**
+ * If `true`, Mongoose will skip building any indexes defined in this array's schema.
+ * If not set, Mongoose will build all indexes defined in this array's schema.
+ *
+ * #### Example:
+ *
+ *     const childSchema = Schema({ name: { type: String, index: true } });
+ *     // If `excludeIndexes` is `true`, Mongoose will skip building an index
+ *     // on `arr.name`. Otherwise, Mongoose will build an index on `arr.name`.
+ *     const parentSchema = Schema({
+ *       arr: { type: [childSchema], excludeIndexes: true }
+ *     });
+ *
+ * @api public
+ * @property excludeIndexes
+ * @memberOf SchemaDocumentArrayOptions
+ * @type {Array}
+ * @instance
+ */
+
+Object.defineProperty(SchemaDocumentArrayOptions.prototype, 'excludeIndexes', opts);
+
+/**
+ * If set, overwrites the child schema's `_id` option.
+ *
+ * #### Example:
+ *
+ *     const childSchema = Schema({ name: String });
+ *     const parentSchema = Schema({
+ *       child: { type: childSchema, _id: false }
+ *     });
+ *     parentSchema.path('child').schema.options._id; // false
+ *
+ * @api public
+ * @property _id
+ * @memberOf SchemaDocumentArrayOptions
+ * @type {Array}
+ * @instance
+ */
+
+Object.defineProperty(SchemaDocumentArrayOptions.prototype, '_id', opts);
+
+/*!
+ * ignore
+ */
+
+module.exports = SchemaDocumentArrayOptions;
diff --git a/backend/node_modules/mongoose/lib/options/schemaMapOptions.js b/backend/node_modules/mongoose/lib/options/schemaMapOptions.js
new file mode 100644
index 0000000..d6de6a4
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/options/schemaMapOptions.js
@@ -0,0 +1,43 @@
+'use strict';
+
+const SchemaTypeOptions = require('./schemaTypeOptions');
+
+/**
+ * The options defined on a Map schematype.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ socialMediaHandles: { type: Map, of: String } });
+ *     schema.path('socialMediaHandles').options; // SchemaMapOptions instance
+ *
+ * @api public
+ * @inherits SchemaTypeOptions
+ * @constructor SchemaMapOptions
+ */
+
+class SchemaMapOptions extends SchemaTypeOptions {}
+
+const opts = require('./propertyOptions');
+
+/**
+ * If set, specifies the type of this map's values. Mongoose will cast
+ * this map's values to the given type.
+ *
+ * If not set, Mongoose will not cast the map's values.
+ *
+ * #### Example:
+ *
+ *     // Mongoose will cast `socialMediaHandles` values to strings
+ *     const schema = new Schema({ socialMediaHandles: { type: Map, of: String } });
+ *     schema.path('socialMediaHandles').options.of; // String
+ *
+ * @api public
+ * @property of
+ * @memberOf SchemaMapOptions
+ * @type {Function|string}
+ * @instance
+ */
+
+Object.defineProperty(SchemaMapOptions.prototype, 'of', opts);
+
+module.exports = SchemaMapOptions;
diff --git a/backend/node_modules/mongoose/lib/options/schemaNumberOptions.js b/backend/node_modules/mongoose/lib/options/schemaNumberOptions.js
new file mode 100644
index 0000000..62a1b51
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/options/schemaNumberOptions.js
@@ -0,0 +1,101 @@
+'use strict';
+
+const SchemaTypeOptions = require('./schemaTypeOptions');
+
+/**
+ * The options defined on a Number schematype.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ count: Number });
+ *     schema.path('count').options; // SchemaNumberOptions instance
+ *
+ * @api public
+ * @inherits SchemaTypeOptions
+ * @constructor SchemaNumberOptions
+ */
+
+class SchemaNumberOptions extends SchemaTypeOptions {}
+
+const opts = require('./propertyOptions');
+
+/**
+ * If set, Mongoose adds a validator that checks that this path is at least the
+ * given `min`.
+ *
+ * @api public
+ * @property min
+ * @memberOf SchemaNumberOptions
+ * @type {Number}
+ * @instance
+ */
+
+Object.defineProperty(SchemaNumberOptions.prototype, 'min', opts);
+
+/**
+ * If set, Mongoose adds a validator that checks that this path is less than the
+ * given `max`.
+ *
+ * @api public
+ * @property max
+ * @memberOf SchemaNumberOptions
+ * @type {Number}
+ * @instance
+ */
+
+Object.defineProperty(SchemaNumberOptions.prototype, 'max', opts);
+
+/**
+ * If set, Mongoose adds a validator that checks that this path is strictly
+ * equal to one of the given values.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({
+ *       favoritePrime: {
+ *         type: Number,
+ *         enum: [3, 5, 7]
+ *       }
+ *     });
+ *     schema.path('favoritePrime').options.enum; // [3, 5, 7]
+ *
+ * @api public
+ * @property enum
+ * @memberOf SchemaNumberOptions
+ * @type {Array}
+ * @instance
+ */
+
+Object.defineProperty(SchemaNumberOptions.prototype, 'enum', opts);
+
+/**
+ * Sets default [populate options](https://mongoosejs.com/docs/populate.html#query-conditions).
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({
+ *       child: {
+ *         type: Number,
+ *         ref: 'Child',
+ *         populate: { select: 'name' }
+ *       }
+ *     });
+ *     const Parent = mongoose.model('Parent', schema);
+ *
+ *     // Automatically adds `.select('name')`
+ *     Parent.findOne().populate('child');
+ *
+ * @api public
+ * @property populate
+ * @memberOf SchemaNumberOptions
+ * @type {Object}
+ * @instance
+ */
+
+Object.defineProperty(SchemaNumberOptions.prototype, 'populate', opts);
+
+/*!
+ * ignore
+ */
+
+module.exports = SchemaNumberOptions;
diff --git a/backend/node_modules/mongoose/lib/options/schemaObjectIdOptions.js b/backend/node_modules/mongoose/lib/options/schemaObjectIdOptions.js
new file mode 100644
index 0000000..2029c9d
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/options/schemaObjectIdOptions.js
@@ -0,0 +1,64 @@
+'use strict';
+
+const SchemaTypeOptions = require('./schemaTypeOptions');
+
+/**
+ * The options defined on an ObjectId schematype.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ testId: mongoose.ObjectId });
+ *     schema.path('testId').options; // SchemaObjectIdOptions instance
+ *
+ * @api public
+ * @inherits SchemaTypeOptions
+ * @constructor SchemaObjectIdOptions
+ */
+
+class SchemaObjectIdOptions extends SchemaTypeOptions {}
+
+const opts = require('./propertyOptions');
+
+/**
+ * If truthy, uses Mongoose's default built-in ObjectId path.
+ *
+ * @api public
+ * @property auto
+ * @memberOf SchemaObjectIdOptions
+ * @type {Boolean}
+ * @instance
+ */
+
+Object.defineProperty(SchemaObjectIdOptions.prototype, 'auto', opts);
+
+/**
+ * Sets default [populate options](https://mongoosejs.com/docs/populate.html#query-conditions).
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({
+ *       child: {
+ *         type: 'ObjectId',
+ *         ref: 'Child',
+ *         populate: { select: 'name' }
+ *       }
+ *     });
+ *     const Parent = mongoose.model('Parent', schema);
+ *
+ *     // Automatically adds `.select('name')`
+ *     Parent.findOne().populate('child');
+ *
+ * @api public
+ * @property populate
+ * @memberOf SchemaObjectIdOptions
+ * @type {Object}
+ * @instance
+ */
+
+Object.defineProperty(SchemaObjectIdOptions.prototype, 'populate', opts);
+
+/*!
+ * ignore
+ */
+
+module.exports = SchemaObjectIdOptions;
diff --git a/backend/node_modules/mongoose/lib/options/schemaStringOptions.js b/backend/node_modules/mongoose/lib/options/schemaStringOptions.js
new file mode 100644
index 0000000..c5bd8ca
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/options/schemaStringOptions.js
@@ -0,0 +1,138 @@
+'use strict';
+
+const SchemaTypeOptions = require('./schemaTypeOptions');
+
+/**
+ * The options defined on a string schematype.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ name: String });
+ *     schema.path('name').options; // SchemaStringOptions instance
+ *
+ * @api public
+ * @inherits SchemaTypeOptions
+ * @constructor SchemaStringOptions
+ */
+
+class SchemaStringOptions extends SchemaTypeOptions {}
+
+const opts = require('./propertyOptions');
+
+/**
+ * Array of allowed values for this path
+ *
+ * @api public
+ * @property enum
+ * @memberOf SchemaStringOptions
+ * @type {Array}
+ * @instance
+ */
+
+Object.defineProperty(SchemaStringOptions.prototype, 'enum', opts);
+
+/**
+ * Attach a validator that succeeds if the data string matches the given regular
+ * expression, and fails otherwise.
+ *
+ * @api public
+ * @property match
+ * @memberOf SchemaStringOptions
+ * @type {RegExp}
+ * @instance
+ */
+
+Object.defineProperty(SchemaStringOptions.prototype, 'match', opts);
+
+/**
+ * If truthy, Mongoose will add a custom setter that lowercases this string
+ * using JavaScript's built-in `String#toLowerCase()`.
+ *
+ * @api public
+ * @property lowercase
+ * @memberOf SchemaStringOptions
+ * @type {Boolean}
+ * @instance
+ */
+
+Object.defineProperty(SchemaStringOptions.prototype, 'lowercase', opts);
+
+/**
+ * If truthy, Mongoose will add a custom setter that removes leading and trailing
+ * whitespace using [JavaScript's built-in `String#trim()`](https://masteringjs.io/tutorials/fundamentals/trim-string).
+ *
+ * @api public
+ * @property trim
+ * @memberOf SchemaStringOptions
+ * @type {Boolean}
+ * @instance
+ */
+
+Object.defineProperty(SchemaStringOptions.prototype, 'trim', opts);
+
+/**
+ * If truthy, Mongoose will add a custom setter that uppercases this string
+ * using JavaScript's built-in [`String#toUpperCase()`](https://masteringjs.io/tutorials/fundamentals/uppercase).
+ *
+ * @api public
+ * @property uppercase
+ * @memberOf SchemaStringOptions
+ * @type {Boolean}
+ * @instance
+ */
+
+Object.defineProperty(SchemaStringOptions.prototype, 'uppercase', opts);
+
+/**
+ * If set, Mongoose will add a custom validator that ensures the given
+ * string's `length` is at least the given number.
+ *
+ * Mongoose supports two different spellings for this option: `minLength` and `minlength`.
+ * `minLength` is the recommended way to specify this option, but Mongoose also supports
+ * `minlength` (lowercase "l").
+ *
+ * @api public
+ * @property minLength
+ * @memberOf SchemaStringOptions
+ * @type {Number}
+ * @instance
+ */
+
+Object.defineProperty(SchemaStringOptions.prototype, 'minLength', opts);
+Object.defineProperty(SchemaStringOptions.prototype, 'minlength', opts);
+
+/**
+ * If set, Mongoose will add a custom validator that ensures the given
+ * string's `length` is at most the given number.
+ *
+ * Mongoose supports two different spellings for this option: `maxLength` and `maxlength`.
+ * `maxLength` is the recommended way to specify this option, but Mongoose also supports
+ * `maxlength` (lowercase "l").
+ *
+ * @api public
+ * @property maxLength
+ * @memberOf SchemaStringOptions
+ * @type {Number}
+ * @instance
+ */
+
+Object.defineProperty(SchemaStringOptions.prototype, 'maxLength', opts);
+Object.defineProperty(SchemaStringOptions.prototype, 'maxlength', opts);
+
+/**
+ * Sets default [populate options](https://mongoosejs.com/docs/populate.html#query-conditions).
+ *
+ * @api public
+ * @property populate
+ * @memberOf SchemaStringOptions
+ * @type {Object}
+ * @instance
+ */
+
+Object.defineProperty(SchemaStringOptions.prototype, 'populate', opts);
+
+/*!
+ * ignore
+ */
+
+module.exports = SchemaStringOptions;
diff --git a/backend/node_modules/mongoose/lib/options/schemaSubdocumentOptions.js b/backend/node_modules/mongoose/lib/options/schemaSubdocumentOptions.js
new file mode 100644
index 0000000..07c9067
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/options/schemaSubdocumentOptions.js
@@ -0,0 +1,42 @@
+'use strict';
+
+const SchemaTypeOptions = require('./schemaTypeOptions');
+
+/**
+ * The options defined on a single nested schematype.
+ *
+ * #### Example:
+ *
+ *     const schema = Schema({ child: Schema({ name: String }) });
+ *     schema.path('child').options; // SchemaSubdocumentOptions instance
+ *
+ * @api public
+ * @inherits SchemaTypeOptions
+ * @constructor SchemaSubdocumentOptions
+ */
+
+class SchemaSubdocumentOptions extends SchemaTypeOptions {}
+
+const opts = require('./propertyOptions');
+
+/**
+ * If set, overwrites the child schema's `_id` option.
+ *
+ * #### Example:
+ *
+ *     const childSchema = Schema({ name: String });
+ *     const parentSchema = Schema({
+ *       child: { type: childSchema, _id: false }
+ *     });
+ *     parentSchema.path('child').schema.options._id; // false
+ *
+ * @api public
+ * @property of
+ * @memberOf SchemaSubdocumentOptions
+ * @type {Function|string}
+ * @instance
+ */
+
+Object.defineProperty(SchemaSubdocumentOptions.prototype, '_id', opts);
+
+module.exports = SchemaSubdocumentOptions;
diff --git a/backend/node_modules/mongoose/lib/options/schemaTypeOptions.js b/backend/node_modules/mongoose/lib/options/schemaTypeOptions.js
new file mode 100644
index 0000000..cfe3de3
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/options/schemaTypeOptions.js
@@ -0,0 +1,244 @@
+'use strict';
+
+const clone = require('../helpers/clone');
+
+/**
+ * The options defined on a schematype.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ name: String });
+ *     schema.path('name').options instanceof mongoose.SchemaTypeOptions; // true
+ *
+ * @api public
+ * @constructor SchemaTypeOptions
+ */
+
+class SchemaTypeOptions {
+  constructor(obj) {
+    if (obj == null) {
+      return this;
+    }
+    Object.assign(this, clone(obj));
+  }
+}
+
+const opts = require('./propertyOptions');
+
+/**
+ * The type to cast this path to.
+ *
+ * @api public
+ * @property type
+ * @memberOf SchemaTypeOptions
+ * @type {Function|String|Object}
+ * @instance
+ */
+
+Object.defineProperty(SchemaTypeOptions.prototype, 'type', opts);
+
+/**
+ * Function or object describing how to validate this schematype.
+ *
+ * @api public
+ * @property validate
+ * @memberOf SchemaTypeOptions
+ * @type {Function|Object}
+ * @instance
+ */
+
+Object.defineProperty(SchemaTypeOptions.prototype, 'validate', opts);
+
+/**
+ * Allows overriding casting logic for this individual path. If a string, the
+ * given string overwrites Mongoose's default cast error message.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({
+ *       num: {
+ *         type: Number,
+ *         cast: '{VALUE} is not a valid number'
+ *       }
+ *     });
+ *
+ *     // Throws 'CastError: "bad" is not a valid number'
+ *     schema.path('num').cast('bad');
+ *
+ *     const Model = mongoose.model('Test', schema);
+ *     const doc = new Model({ num: 'fail' });
+ *     const err = doc.validateSync();
+ *
+ *     err.errors['num']; // 'CastError: "fail" is not a valid number'
+ *
+ * @api public
+ * @property cast
+ * @memberOf SchemaTypeOptions
+ * @type {String}
+ * @instance
+ */
+
+Object.defineProperty(SchemaTypeOptions.prototype, 'cast', opts);
+
+/**
+ * If true, attach a required validator to this path, which ensures this path
+ * cannot be set to a nullish value. If a function, Mongoose calls the
+ * function and only checks for nullish values if the function returns a truthy value.
+ *
+ * @api public
+ * @property required
+ * @memberOf SchemaTypeOptions
+ * @type {Function|Boolean}
+ * @instance
+ */
+
+Object.defineProperty(SchemaTypeOptions.prototype, 'required', opts);
+
+/**
+ * The default value for this path. If a function, Mongoose executes the function
+ * and uses the return value as the default.
+ *
+ * @api public
+ * @property default
+ * @memberOf SchemaTypeOptions
+ * @type {Function|Any}
+ * @instance
+ */
+
+Object.defineProperty(SchemaTypeOptions.prototype, 'default', opts);
+
+/**
+ * The model that `populate()` should use if populating this path.
+ *
+ * @api public
+ * @property ref
+ * @memberOf SchemaTypeOptions
+ * @type {Function|String}
+ * @instance
+ */
+
+Object.defineProperty(SchemaTypeOptions.prototype, 'ref', opts);
+
+/**
+ * The path in the document that `populate()` should use to find the model
+ * to use.
+ *
+ * @api public
+ * @property ref
+ * @memberOf SchemaTypeOptions
+ * @type {Function|String}
+ * @instance
+ */
+
+Object.defineProperty(SchemaTypeOptions.prototype, 'refPath', opts);
+
+/**
+ * Whether to include or exclude this path by default when loading documents
+ * using `find()`, `findOne()`, etc.
+ *
+ * @api public
+ * @property select
+ * @memberOf SchemaTypeOptions
+ * @type {Boolean|Number}
+ * @instance
+ */
+
+Object.defineProperty(SchemaTypeOptions.prototype, 'select', opts);
+
+/**
+ * If [truthy](https://masteringjs.io/tutorials/fundamentals/truthy), Mongoose will
+ * build an index on this path when the model is compiled.
+ *
+ * @api public
+ * @property index
+ * @memberOf SchemaTypeOptions
+ * @type {Boolean|Number|Object}
+ * @instance
+ */
+
+Object.defineProperty(SchemaTypeOptions.prototype, 'index', opts);
+
+/**
+ * If [truthy](https://masteringjs.io/tutorials/fundamentals/truthy), Mongoose
+ * will build a unique index on this path when the
+ * model is compiled. [The `unique` option is **not** a validator](https://mongoosejs.com/docs/validation.html#the-unique-option-is-not-a-validator).
+ *
+ * @api public
+ * @property unique
+ * @memberOf SchemaTypeOptions
+ * @type {Boolean|Number}
+ * @instance
+ */
+
+Object.defineProperty(SchemaTypeOptions.prototype, 'unique', opts);
+
+/**
+ * If [truthy](https://masteringjs.io/tutorials/fundamentals/truthy), Mongoose will
+ * disallow changes to this path once the document
+ * is saved to the database for the first time. Read more about [immutability in Mongoose here](https://thecodebarbarian.com/whats-new-in-mongoose-5-6-immutable-properties.html).
+ *
+ * @api public
+ * @property immutable
+ * @memberOf SchemaTypeOptions
+ * @type {Function|Boolean}
+ * @instance
+ */
+
+Object.defineProperty(SchemaTypeOptions.prototype, 'immutable', opts);
+
+/**
+ * If [truthy](https://masteringjs.io/tutorials/fundamentals/truthy), Mongoose will
+ * build a sparse index on this path.
+ *
+ * @api public
+ * @property sparse
+ * @memberOf SchemaTypeOptions
+ * @type {Boolean|Number}
+ * @instance
+ */
+
+Object.defineProperty(SchemaTypeOptions.prototype, 'sparse', opts);
+
+/**
+ * If [truthy](https://masteringjs.io/tutorials/fundamentals/truthy), Mongoose
+ * will build a text index on this path.
+ *
+ * @api public
+ * @property text
+ * @memberOf SchemaTypeOptions
+ * @type {Boolean|Number|Object}
+ * @instance
+ */
+
+Object.defineProperty(SchemaTypeOptions.prototype, 'text', opts);
+
+/**
+ * Define a transform function for this individual schema type.
+ * Only called when calling `toJSON()` or `toObject()`.
+ *
+ * #### Example:
+ *
+ *     const schema = Schema({
+ *       myDate: {
+ *         type: Date,
+ *         transform: v => v.getFullYear()
+ *       }
+ *     });
+ *     const Model = mongoose.model('Test', schema);
+ *
+ *     const doc = new Model({ myDate: new Date('2019/06/01') });
+ *     doc.myDate instanceof Date; // true
+ *
+ *     const res = doc.toObject({ transform: true });
+ *     res.myDate; // 2019
+ *
+ * @api public
+ * @property transform
+ * @memberOf SchemaTypeOptions
+ * @type {Function}
+ * @instance
+ */
+
+Object.defineProperty(SchemaTypeOptions.prototype, 'transform', opts);
+
+module.exports = SchemaTypeOptions;
diff --git a/backend/node_modules/mongoose/lib/options/virtualOptions.js b/backend/node_modules/mongoose/lib/options/virtualOptions.js
new file mode 100644
index 0000000..c17c5a4
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/options/virtualOptions.js
@@ -0,0 +1,164 @@
+'use strict';
+
+const opts = require('./propertyOptions');
+
+class VirtualOptions {
+  constructor(obj) {
+    Object.assign(this, obj);
+
+    if (obj != null && obj.options != null) {
+      this.options = Object.assign({}, obj.options);
+    }
+  }
+}
+
+/**
+ * Marks this virtual as a populate virtual, and specifies the model to
+ * use for populate.
+ *
+ * @api public
+ * @property ref
+ * @memberOf VirtualOptions
+ * @type {String|Model|Function}
+ * @instance
+ */
+
+Object.defineProperty(VirtualOptions.prototype, 'ref', opts);
+
+/**
+ * Marks this virtual as a populate virtual, and specifies the path that
+ * contains the name of the model to populate
+ *
+ * @api public
+ * @property refPath
+ * @memberOf VirtualOptions
+ * @type {String|Function}
+ * @instance
+ */
+
+Object.defineProperty(VirtualOptions.prototype, 'refPath', opts);
+
+/**
+ * The name of the property in the local model to match to `foreignField`
+ * in the foreign model.
+ *
+ * @api public
+ * @property localField
+ * @memberOf VirtualOptions
+ * @type {String|Function}
+ * @instance
+ */
+
+Object.defineProperty(VirtualOptions.prototype, 'localField', opts);
+
+/**
+ * The name of the property in the foreign model to match to `localField`
+ * in the local model.
+ *
+ * @api public
+ * @property foreignField
+ * @memberOf VirtualOptions
+ * @type {String|Function}
+ * @instance
+ */
+
+Object.defineProperty(VirtualOptions.prototype, 'foreignField', opts);
+
+/**
+ * Whether to populate this virtual as a single document (true) or an
+ * array of documents (false).
+ *
+ * @api public
+ * @property justOne
+ * @memberOf VirtualOptions
+ * @type {Boolean}
+ * @instance
+ */
+
+Object.defineProperty(VirtualOptions.prototype, 'justOne', opts);
+
+/**
+ * If true, populate just the number of documents where `localField`
+ * matches `foreignField`, as opposed to the documents themselves.
+ *
+ * If `count` is set, it overrides `justOne`.
+ *
+ * @api public
+ * @property count
+ * @memberOf VirtualOptions
+ * @type {Boolean}
+ * @instance
+ */
+
+Object.defineProperty(VirtualOptions.prototype, 'count', opts);
+
+/**
+ * Add an additional filter to populate, in addition to `localField`
+ * matches `foreignField`.
+ *
+ * @api public
+ * @property match
+ * @memberOf VirtualOptions
+ * @type {Object|Function}
+ * @instance
+ */
+
+Object.defineProperty(VirtualOptions.prototype, 'match', opts);
+
+/**
+ * Additional options to pass to the query used to `populate()`:
+ *
+ * - `sort`
+ * - `skip`
+ * - `limit`
+ *
+ * @api public
+ * @property options
+ * @memberOf VirtualOptions
+ * @type {Object}
+ * @instance
+ */
+
+Object.defineProperty(VirtualOptions.prototype, 'options', opts);
+
+/**
+ * If true, add a `skip` to the query used to `populate()`.
+ *
+ * @api public
+ * @property skip
+ * @memberOf VirtualOptions
+ * @type {Number}
+ * @instance
+ */
+
+Object.defineProperty(VirtualOptions.prototype, 'skip', opts);
+
+/**
+ * If true, add a `limit` to the query used to `populate()`.
+ *
+ * @api public
+ * @property limit
+ * @memberOf VirtualOptions
+ * @type {Number}
+ * @instance
+ */
+
+Object.defineProperty(VirtualOptions.prototype, 'limit', opts);
+
+/**
+ * The `limit` option for `populate()` has [some unfortunate edge cases](https://mongoosejs.com/docs/populate.html#query-conditions)
+ * when working with multiple documents, like `.find().populate()`. The
+ * `perDocumentLimit` option makes `populate()` execute a separate query
+ * for each document returned from `find()` to ensure each document
+ * gets up to `perDocumentLimit` populated docs if possible.
+ *
+ * @api public
+ * @property perDocumentLimit
+ * @memberOf VirtualOptions
+ * @type {Number}
+ * @instance
+ */
+
+Object.defineProperty(VirtualOptions.prototype, 'perDocumentLimit', opts);
+
+module.exports = VirtualOptions;
diff --git a/backend/node_modules/mongoose/lib/plugins/index.js b/backend/node_modules/mongoose/lib/plugins/index.js
new file mode 100644
index 0000000..a8a6c04
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/plugins/index.js
@@ -0,0 +1,6 @@
+'use strict';
+
+exports.saveSubdocs = require('./saveSubdocs');
+exports.sharding = require('./sharding');
+exports.trackTransaction = require('./trackTransaction');
+exports.validateBeforeSave = require('./validateBeforeSave');
diff --git a/backend/node_modules/mongoose/lib/plugins/saveSubdocs.js b/backend/node_modules/mongoose/lib/plugins/saveSubdocs.js
new file mode 100644
index 0000000..bb88db5
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/plugins/saveSubdocs.js
@@ -0,0 +1,102 @@
+'use strict';
+
+const each = require('../helpers/each');
+
+/*!
+ * ignore
+ */
+
+module.exports = function saveSubdocs(schema) {
+  const unshift = true;
+  schema.s.hooks.pre('save', false, function saveSubdocsPreSave(next) {
+    if (this.$isSubdocument) {
+      next();
+      return;
+    }
+
+    const _this = this;
+    const subdocs = this.$getAllSubdocs({ useCache: true });
+
+    if (!subdocs.length) {
+      next();
+      return;
+    }
+
+    each(subdocs, function(subdoc, cb) {
+      subdoc.$__schema.s.hooks.execPre('save', subdoc, function(err) {
+        cb(err);
+      });
+    }, function(error) {
+      // Invalidate subdocs cache because subdoc pre hooks can add new subdocuments
+      if (_this.$__.saveOptions) {
+        _this.$__.saveOptions.__subdocs = null;
+      }
+      if (error) {
+        return _this.$__schema.s.hooks.execPost('save:error', _this, [_this], { error: error }, function(error) {
+          next(error);
+        });
+      }
+      next();
+    });
+  }, null, unshift);
+
+  schema.s.hooks.post('save', async function saveSubdocsPostDeleteOne() {
+    const removedSubdocs = this.$__.removedSubdocs;
+    if (!removedSubdocs || !removedSubdocs.length) {
+      return;
+    }
+
+    const promises = [];
+    for (const subdoc of removedSubdocs) {
+      promises.push(new Promise((resolve, reject) => {
+        subdoc.$__schema.s.hooks.execPost('deleteOne', subdoc, [subdoc], function(err) {
+          if (err) {
+            return reject(err);
+          }
+          resolve();
+        });
+      }));
+    }
+
+    this.$__.removedSubdocs = null;
+    await Promise.all(promises);
+  });
+
+  schema.s.hooks.post('save', async function saveSubdocsPostSave() {
+    if (this.$isSubdocument) {
+      return;
+    }
+
+    const _this = this;
+    const subdocs = this.$getAllSubdocs({ useCache: true });
+
+    if (!subdocs.length) {
+      return;
+    }
+
+    const promises = [];
+    for (const subdoc of subdocs) {
+      promises.push(new Promise((resolve, reject) => {
+        subdoc.$__schema.s.hooks.execPost('save', subdoc, [subdoc], function(err) {
+          if (err) {
+            return reject(err);
+          }
+          resolve();
+        });
+      }));
+    }
+
+    try {
+      await Promise.all(promises);
+    } catch (error) {
+      await new Promise((resolve, reject) => {
+        this.$__schema.s.hooks.execPost('save:error', _this, [_this], { error: error }, function(error) {
+          if (error) {
+            return reject(error);
+          }
+          resolve();
+        });
+      });
+    }
+  }, null, unshift);
+};
diff --git a/backend/node_modules/mongoose/lib/plugins/sharding.js b/backend/node_modules/mongoose/lib/plugins/sharding.js
new file mode 100644
index 0000000..7d905f3
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/plugins/sharding.js
@@ -0,0 +1,83 @@
+'use strict';
+
+const objectIdSymbol = require('../helpers/symbols').objectIdSymbol;
+const utils = require('../utils');
+
+/*!
+ * ignore
+ */
+
+module.exports = function shardingPlugin(schema) {
+  schema.post('init', function shardingPluginPostInit() {
+    storeShard.call(this);
+    return this;
+  });
+  schema.pre('save', function shardingPluginPreSave(next) {
+    applyWhere.call(this);
+    next();
+  });
+  schema.pre('remove', function shardingPluginPreRemove(next) {
+    applyWhere.call(this);
+    next();
+  });
+  schema.post('save', function shardingPluginPostSave() {
+    storeShard.call(this);
+  });
+};
+
+/*!
+ * ignore
+ */
+
+function applyWhere() {
+  let paths;
+  let len;
+
+  if (this.$__.shardval) {
+    paths = Object.keys(this.$__.shardval);
+    len = paths.length;
+
+    this.$where = this.$where || {};
+    for (let i = 0; i < len; ++i) {
+      this.$where[paths[i]] = this.$__.shardval[paths[i]];
+    }
+  }
+}
+
+/*!
+ * ignore
+ */
+
+module.exports.storeShard = storeShard;
+
+/*!
+ * ignore
+ */
+
+function storeShard() {
+  // backwards compat
+  const key = this.$__schema.options.shardKey || this.$__schema.options.shardkey;
+  if (!utils.isPOJO(key)) {
+    return;
+  }
+
+  const orig = this.$__.shardval = {};
+  const paths = Object.keys(key);
+  const len = paths.length;
+  let val;
+
+  for (let i = 0; i < len; ++i) {
+    val = this.$__getValue(paths[i]);
+    if (val == null) {
+      orig[paths[i]] = val;
+    } else if (utils.isMongooseObject(val)) {
+      orig[paths[i]] = val.toObject({ depopulate: true, _isNested: true });
+    } else if (val instanceof Date || val[objectIdSymbol]) {
+      orig[paths[i]] = val;
+    } else if (typeof val.valueOf === 'function') {
+      orig[paths[i]] = val.valueOf();
+    } else {
+      orig[paths[i]] = val;
+    }
+  }
+}
diff --git a/backend/node_modules/mongoose/lib/plugins/trackTransaction.js b/backend/node_modules/mongoose/lib/plugins/trackTransaction.js
new file mode 100644
index 0000000..857caac
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/plugins/trackTransaction.js
@@ -0,0 +1,85 @@
+'use strict';
+
+const arrayAtomicsSymbol = require('../helpers/symbols').arrayAtomicsSymbol;
+const sessionNewDocuments = require('../helpers/symbols').sessionNewDocuments;
+const utils = require('../utils');
+
+module.exports = function trackTransaction(schema) {
+  schema.pre('save', function trackTransactionPreSave() {
+    const session = this.$session();
+    if (session == null) {
+      return;
+    }
+    if (session.transaction == null || session[sessionNewDocuments] == null) {
+      return;
+    }
+
+    if (!session[sessionNewDocuments].has(this)) {
+      const initialState = {};
+      if (this.isNew) {
+        initialState.isNew = true;
+      }
+      if (this.$__schema.options.versionKey) {
+        initialState.versionKey = this.get(this.$__schema.options.versionKey);
+      }
+
+      initialState.modifiedPaths = new Set(Object.keys(this.$__.activePaths.getStatePaths('modify')));
+      initialState.atomics = _getAtomics(this);
+
+      session[sessionNewDocuments].set(this, initialState);
+    }
+  });
+};
+
+function _getAtomics(doc, previous) {
+  const pathToAtomics = new Map();
+  previous = previous || new Map();
+
+  const pathsToCheck = Object.keys(doc.$__.activePaths.init).concat(Object.keys(doc.$__.activePaths.modify));
+
+  for (const path of pathsToCheck) {
+    const val = doc.$__getValue(path);
+    if (val != null &&
+        Array.isArray(val) &&
+        utils.isMongooseDocumentArray(val) &&
+        val.length &&
+        val[arrayAtomicsSymbol] != null &&
+        Object.keys(val[arrayAtomicsSymbol]).length !== 0) {
+      const existing = previous.get(path) || {};
+      pathToAtomics.set(path, mergeAtomics(existing, val[arrayAtomicsSymbol]));
+    }
+  }
+
+  const dirty = doc.$__dirty();
+  for (const dirt of dirty) {
+    const path = dirt.path;
+
+    const val = dirt.value;
+    if (val != null && val[arrayAtomicsSymbol] != null && Object.keys(val[arrayAtomicsSymbol]).length !== 0) {
+      const existing = previous.get(path) || {};
+      pathToAtomics.set(path, mergeAtomics(existing, val[arrayAtomicsSymbol]));
+    }
+  }
+
+  return pathToAtomics;
+}
+
+function mergeAtomics(destination, source) {
+  destination = destination || {};
+
+  if (source.$pullAll != null) {
+    destination.$pullAll = (destination.$pullAll || []).concat(source.$pullAll);
+  }
+  if (source.$push != null) {
+    destination.$push = destination.$push || {};
+    destination.$push.$each = (destination.$push.$each || []).concat(source.$push.$each);
+  }
+  if (source.$addToSet != null) {
+    destination.$addToSet = (destination.$addToSet || []).concat(source.$addToSet);
+  }
+  if (source.$set != null) {
+    destination.$set = Array.isArray(source.$set) ? [...source.$set] : Object.assign({}, source.$set);
+  }
+
+  return destination;
+}
diff --git a/backend/node_modules/mongoose/lib/plugins/validateBeforeSave.js b/backend/node_modules/mongoose/lib/plugins/validateBeforeSave.js
new file mode 100644
index 0000000..c558241
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/plugins/validateBeforeSave.js
@@ -0,0 +1,51 @@
+'use strict';
+
+/*!
+ * ignore
+ */
+
+module.exports = function validateBeforeSave(schema) {
+  const unshift = true;
+  schema.pre('save', false, function validateBeforeSave(next, options) {
+    const _this = this;
+    // Nested docs have their own presave
+    if (this.$isSubdocument) {
+      return next();
+    }
+
+    const hasValidateBeforeSaveOption = options &&
+        (typeof options === 'object') &&
+        ('validateBeforeSave' in options);
+
+    let shouldValidate;
+    if (hasValidateBeforeSaveOption) {
+      shouldValidate = !!options.validateBeforeSave;
+    } else {
+      shouldValidate = this.$__schema.options.validateBeforeSave;
+    }
+
+    // Validate
+    if (shouldValidate) {
+      const hasValidateModifiedOnlyOption = options &&
+          (typeof options === 'object') &&
+          ('validateModifiedOnly' in options);
+      const validateOptions = hasValidateModifiedOnlyOption ?
+        { validateModifiedOnly: options.validateModifiedOnly } :
+        null;
+      this.$validate(validateOptions).then(
+        () => {
+          this.$op = 'save';
+          next();
+        },
+        error => {
+          _this.$__schema.s.hooks.execPost('save:error', _this, [_this], { error: error }, function(error) {
+            _this.$op = 'save';
+            next(error);
+          });
+        }
+      );
+    } else {
+      next();
+    }
+  }, null, unshift);
+};
diff --git a/backend/node_modules/mongoose/lib/query.js b/backend/node_modules/mongoose/lib/query.js
new file mode 100644
index 0000000..067a6e0
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/query.js
@@ -0,0 +1,5520 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const CastError = require('./error/cast');
+const DocumentNotFoundError = require('./error/notFound');
+const Kareem = require('kareem');
+const MongooseError = require('./error/mongooseError');
+const ObjectParameterError = require('./error/objectParameter');
+const QueryCursor = require('./cursor/queryCursor');
+const ValidationError = require('./error/validation');
+const { applyGlobalMaxTimeMS, applyGlobalDiskUse } = require('./helpers/query/applyGlobalOption');
+const handleReadPreferenceAliases = require('./helpers/query/handleReadPreferenceAliases');
+const applyReadConcern = require('./helpers/schema/applyReadConcern');
+const applyWriteConcern = require('./helpers/schema/applyWriteConcern');
+const cast = require('./cast');
+const castArrayFilters = require('./helpers/update/castArrayFilters');
+const castNumber = require('./cast/number');
+const castUpdate = require('./helpers/query/castUpdate');
+const clone = require('./helpers/clone');
+const getDiscriminatorByValue = require('./helpers/discriminator/getDiscriminatorByValue');
+const helpers = require('./queryHelpers');
+const internalToObjectOptions = require('./options').internalToObjectOptions;
+const isExclusive = require('./helpers/projection/isExclusive');
+const isInclusive = require('./helpers/projection/isInclusive');
+const isPathSelectedInclusive = require('./helpers/projection/isPathSelectedInclusive');
+const isSubpath = require('./helpers/projection/isSubpath');
+const mpath = require('mpath');
+const mquery = require('mquery');
+const parseProjection = require('./helpers/projection/parseProjection');
+const removeUnusedArrayFilters = require('./helpers/update/removeUnusedArrayFilters');
+const sanitizeFilter = require('./helpers/query/sanitizeFilter');
+const sanitizeProjection = require('./helpers/query/sanitizeProjection');
+const selectPopulatedFields = require('./helpers/query/selectPopulatedFields');
+const setDefaultsOnInsert = require('./helpers/setDefaultsOnInsert');
+const specialProperties = require('./helpers/specialProperties');
+const updateValidators = require('./helpers/updateValidators');
+const util = require('util');
+const utils = require('./utils');
+const queryMiddlewareFunctions = require('./constants').queryMiddlewareFunctions;
+
+const queryOptionMethods = new Set([
+  'allowDiskUse',
+  'batchSize',
+  'collation',
+  'comment',
+  'explain',
+  'hint',
+  'j',
+  'lean',
+  'limit',
+  'maxTimeMS',
+  'populate',
+  'projection',
+  'read',
+  'select',
+  'skip',
+  'slice',
+  'sort',
+  'tailable',
+  'w',
+  'writeConcern',
+  'wtimeout'
+]);
+
+/**
+ * Query constructor used for building queries. You do not need
+ * to instantiate a `Query` directly. Instead use Model functions like
+ * [`Model.find()`](https://mongoosejs.com/docs/api/model.html#Model.find()).
+ *
+ * #### Example:
+ *
+ *     const query = MyModel.find(); // `query` is an instance of `Query`
+ *     query.setOptions({ lean : true });
+ *     query.collection(MyModel.collection);
+ *     query.where('age').gte(21).exec(callback);
+ *
+ *     // You can instantiate a query directly. There is no need to do
+ *     // this unless you're an advanced user with a very good reason to.
+ *     const query = new mongoose.Query();
+ *
+ * @param {Object} [options]
+ * @param {Object} [model]
+ * @param {Object} [conditions]
+ * @param {Object} [collection] Mongoose collection
+ * @api public
+ */
+
+function Query(conditions, options, model, collection) {
+  // this stuff is for dealing with custom queries created by #toConstructor
+  if (!this._mongooseOptions) {
+    this._mongooseOptions = {};
+  }
+  options = options || {};
+
+  this._transforms = [];
+  this._hooks = new Kareem();
+  this._executionStack = null;
+
+  // this is the case where we have a CustomQuery, we need to check if we got
+  // options passed in, and if we did, merge them in
+  const keys = Object.keys(options);
+  for (const key of keys) {
+    this._mongooseOptions[key] = options[key];
+  }
+
+  if (collection) {
+    this.mongooseCollection = collection;
+  }
+
+  if (model) {
+    this.model = model;
+    this.schema = model.schema;
+  }
+
+  // this is needed because map reduce returns a model that can be queried, but
+  // all of the queries on said model should be lean
+  if (this.model && this.model._mapreduce) {
+    this.lean();
+  }
+
+  // inherit mquery
+  mquery.call(this, null, options);
+  if (collection) {
+    this.collection(collection);
+  }
+
+  if (conditions) {
+    this.find(conditions);
+  }
+
+  this.options = this.options || {};
+
+  // For gh-6880. mquery still needs to support `fields` by default for old
+  // versions of MongoDB
+  this.$useProjection = true;
+
+  const collation = this &&
+    this.schema &&
+    this.schema.options &&
+    this.schema.options.collation || null;
+  if (collation != null) {
+    this.options.collation = collation;
+  }
+}
+
+/*!
+ * inherit mquery
+ */
+
+Query.prototype = new mquery();
+Query.prototype.constructor = Query;
+
+// Remove some legacy methods that we removed in Mongoose 8, but
+// are still in mquery 5.
+Query.prototype.count = undefined;
+Query.prototype.findOneAndRemove = undefined;
+
+Query.base = mquery.prototype;
+
+/*!
+ * Overwrite mquery's `_distinct`, because Mongoose uses that name
+ * to store the field to apply distinct on.
+ */
+
+Object.defineProperty(Query.prototype, '_distinct', {
+  configurable: true,
+  writable: true,
+  enumerable: true,
+  value: undefined
+});
+
+/**
+ * Flag to opt out of using `$geoWithin`.
+ *
+ * ```javascript
+ * mongoose.Query.use$geoWithin = false;
+ * ```
+ *
+ * MongoDB 2.4 deprecated the use of `$within`, replacing it with `$geoWithin`. Mongoose uses `$geoWithin` by default (which is 100% backward compatible with `$within`). If you are running an older version of MongoDB, set this flag to `false` so your `within()` queries continue to work.
+ *
+ * @see geoWithin https://www.mongodb.com/docs/manual/reference/operator/geoWithin/
+ * @default true
+ * @property use$geoWithin
+ * @memberOf Query
+ * @static
+ * @api public
+ */
+
+Query.use$geoWithin = mquery.use$geoWithin;
+
+/**
+ * Converts this query to a customized, reusable query constructor with all arguments and options retained.
+ *
+ * #### Example:
+ *
+ *     // Create a query for adventure movies and read from the primary
+ *     // node in the replica-set unless it is down, in which case we'll
+ *     // read from a secondary node.
+ *     const query = Movie.find({ tags: 'adventure' }).read('primaryPreferred');
+ *
+ *     // create a custom Query constructor based off these settings
+ *     const Adventure = query.toConstructor();
+ *
+ *     // further narrow down our query results while still using the previous settings
+ *     await Adventure().where({ name: /^Life/ }).exec();
+ *
+ *     // since Adventure is a stand-alone constructor we can also add our own
+ *     // helper methods and getters without impacting global queries
+ *     Adventure.prototype.startsWith = function (prefix) {
+ *       this.where({ name: new RegExp('^' + prefix) })
+ *       return this;
+ *     }
+ *     Object.defineProperty(Adventure.prototype, 'highlyRated', {
+ *       get: function () {
+ *         this.where({ rating: { $gt: 4.5 }});
+ *         return this;
+ *       }
+ *     })
+ *     await Adventure().highlyRated.startsWith('Life').exec();
+ *
+ * @return {Query} subclass-of-Query
+ * @api public
+ */
+
+Query.prototype.toConstructor = function toConstructor() {
+  const model = this.model;
+  const coll = this.mongooseCollection;
+
+  const CustomQuery = function(criteria, options) {
+    if (!(this instanceof CustomQuery)) {
+      return new CustomQuery(criteria, options);
+    }
+    this._mongooseOptions = clone(p._mongooseOptions);
+    Query.call(this, criteria, options || null, model, coll);
+  };
+
+  util.inherits(CustomQuery, model.Query);
+
+  // set inherited defaults
+  const p = CustomQuery.prototype;
+
+  p.options = {};
+
+  // Need to handle `sort()` separately because entries-style `sort()` syntax
+  // `sort([['prop1', 1]])` confuses mquery into losing the outer nested array.
+  // See gh-8159
+  const options = Object.assign({}, this.options);
+  if (options.sort != null) {
+    p.sort(options.sort);
+    delete options.sort;
+  }
+  p.setOptions(options);
+
+  p.op = this.op;
+  p._validateOp();
+  p._conditions = clone(this._conditions);
+  p._fields = clone(this._fields);
+  p._update = clone(this._update, {
+    flattenDecimals: false
+  });
+  p._path = this._path;
+  p._distinct = this._distinct;
+  p._collection = this._collection;
+  p._mongooseOptions = this._mongooseOptions;
+
+  return CustomQuery;
+};
+
+/**
+ * Make a copy of this query so you can re-execute it.
+ *
+ * #### Example:
+ *
+ *     const q = Book.findOne({ title: 'Casino Royale' });
+ *     await q.exec();
+ *     await q.exec(); // Throws an error because you can't execute a query twice
+ *
+ *     await q.clone().exec(); // Works
+ *
+ * @method clone
+ * @return {Query} copy
+ * @memberOf Query
+ * @instance
+ * @api public
+ */
+
+Query.prototype.clone = function() {
+  const model = this.model;
+  const collection = this.mongooseCollection;
+
+  const q = new this.model.Query({}, {}, model, collection);
+
+  // Need to handle `sort()` separately because entries-style `sort()` syntax
+  // `sort([['prop1', 1]])` confuses mquery into losing the outer nested array.
+  // See gh-8159
+  const options = Object.assign({}, this.options);
+  if (options.sort != null) {
+    q.sort(options.sort);
+    delete options.sort;
+  }
+  q.setOptions(options);
+
+  q.op = this.op;
+  q._validateOp();
+  q._conditions = clone(this._conditions);
+  q._fields = clone(this._fields);
+  q._update = clone(this._update, {
+    flattenDecimals: false
+  });
+  q._path = this._path;
+  q._distinct = this._distinct;
+  q._collection = this._collection;
+  q._mongooseOptions = this._mongooseOptions;
+
+  return q;
+};
+
+/**
+ * Specifies a javascript function or expression to pass to MongoDBs query system.
+ *
+ * #### Example:
+ *
+ *     query.$where('this.comments.length === 10 || this.name.length === 5')
+ *
+ *     // or
+ *
+ *     query.$where(function () {
+ *       return this.comments.length === 10 || this.name.length === 5;
+ *     })
+ *
+ * #### Note:
+ *
+ * Only use `$where` when you have a condition that cannot be met using other MongoDB operators like `$lt`.
+ * **Be sure to read about all of [its caveats](https://www.mongodb.com/docs/manual/reference/operator/where/) before using.**
+ *
+ * @see $where https://www.mongodb.com/docs/manual/reference/operator/where/
+ * @method $where
+ * @param {String|Function} js javascript string or function
+ * @return {Query} this
+ * @memberOf Query
+ * @instance
+ * @method $where
+ * @api public
+ */
+
+/**
+ * Specifies a `path` for use with chaining.
+ *
+ * #### Example:
+ *
+ *     // instead of writing:
+ *     User.find({age: {$gte: 21, $lte: 65}});
+ *
+ *     // we can instead write:
+ *     User.where('age').gte(21).lte(65);
+ *
+ *     // passing query conditions is permitted
+ *     User.find().where({ name: 'vonderful' })
+ *
+ *     // chaining
+ *     User
+ *     .where('age').gte(21).lte(65)
+ *     .where('name', /^vonderful/i)
+ *     .where('friends').slice(10)
+ *     .exec()
+ *
+ * @method where
+ * @memberOf Query
+ * @instance
+ * @param {String|Object} [path]
+ * @param {any} [val]
+ * @return {Query} this
+ * @api public
+ */
+
+/**
+ * Specifies a `$slice` projection for an array.
+ *
+ * #### Example:
+ *
+ *     query.slice('comments', 5); // Returns the first 5 comments
+ *     query.slice('comments', -5); // Returns the last 5 comments
+ *     query.slice('comments', [10, 5]); // Returns the first 5 comments after the 10-th
+ *     query.where('comments').slice(5); // Returns the first 5 comments
+ *     query.where('comments').slice([-10, 5]); // Returns the first 5 comments after the 10-th to last
+ *
+ * **Note:** If the absolute value of the number of elements to be sliced is greater than the number of elements in the array, all array elements will be returned.
+ *
+ *      // Given `arr`: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
+ *      query.slice('arr', 20); // Returns [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
+ *      query.slice('arr', -20); // Returns [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
+ *
+ * **Note:** If the number of elements to skip is positive and greater than the number of elements in the array, an empty array will be returned.
+ *
+ *      // Given `arr`: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
+ *      query.slice('arr', [20, 5]); // Returns []
+ *
+ * **Note:** If the number of elements to skip is negative and its absolute value is greater than the number of elements in the array, the starting position is the start of the array.
+ *
+ *      // Given `arr`: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
+ *      query.slice('arr', [-20, 5]); // Returns [1, 2, 3, 4, 5]
+ *
+ * @method slice
+ * @memberOf Query
+ * @instance
+ * @param {String} [path]
+ * @param {Number|Array} val number of elements to slice or array with number of elements to skip and number of elements to slice
+ * @return {Query} this
+ * @see mongodb https://www.mongodb.com/docs/manual/tutorial/query-documents/#projection
+ * @see $slice https://www.mongodb.com/docs/manual/reference/projection/slice/#prj._S_slice
+ * @api public
+ */
+
+Query.prototype.slice = function() {
+  if (arguments.length === 0) {
+    return this;
+  }
+
+  this._validate('slice');
+
+  let path;
+  let val;
+
+  if (arguments.length === 1) {
+    const arg = arguments[0];
+    if (typeof arg === 'object' && !Array.isArray(arg)) {
+      const keys = Object.keys(arg);
+      const numKeys = keys.length;
+      for (let i = 0; i < numKeys; ++i) {
+        this.slice(keys[i], arg[keys[i]]);
+      }
+      return this;
+    }
+    this._ensurePath('slice');
+    path = this._path;
+    val = arguments[0];
+  } else if (arguments.length === 2) {
+    if ('number' === typeof arguments[0]) {
+      this._ensurePath('slice');
+      path = this._path;
+      val = [arguments[0], arguments[1]];
+    } else {
+      path = arguments[0];
+      val = arguments[1];
+    }
+  } else if (arguments.length === 3) {
+    path = arguments[0];
+    val = [arguments[1], arguments[2]];
+  }
+
+  const p = {};
+  p[path] = { $slice: val };
+  this.select(p);
+
+  return this;
+};
+
+/*!
+ * ignore
+ */
+
+const validOpsSet = new Set(queryMiddlewareFunctions);
+
+Query.prototype._validateOp = function() {
+  if (this.op != null && !validOpsSet.has(this.op)) {
+    this.error(new Error('Query has invalid `op`: "' + this.op + '"'));
+  }
+};
+
+/**
+ * Specifies the complementary comparison value for paths specified with `where()`
+ *
+ * #### Example:
+ *
+ *     User.where('age').equals(49);
+ *
+ *     // is the same as
+ *
+ *     User.where('age', 49);
+ *
+ * @method equals
+ * @memberOf Query
+ * @instance
+ * @param {Object} val
+ * @return {Query} this
+ * @api public
+ */
+
+/**
+ * Specifies arguments for an `$or` condition.
+ *
+ * #### Example:
+ *
+ *     query.or([{ color: 'red' }, { status: 'emergency' }]);
+ *
+ * @see $or https://www.mongodb.com/docs/manual/reference/operator/or/
+ * @method or
+ * @memberOf Query
+ * @instance
+ * @param {Array} array array of conditions
+ * @return {Query} this
+ * @api public
+ */
+
+/**
+ * Specifies arguments for a `$nor` condition.
+ *
+ * #### Example:
+ *
+ *     query.nor([{ color: 'green' }, { status: 'ok' }]);
+ *
+ * @see $nor https://www.mongodb.com/docs/manual/reference/operator/nor/
+ * @method nor
+ * @memberOf Query
+ * @instance
+ * @param {Array} array array of conditions
+ * @return {Query} this
+ * @api public
+ */
+
+/**
+ * Specifies arguments for a `$and` condition.
+ *
+ * #### Example:
+ *
+ *     query.and([{ color: 'green' }, { status: 'ok' }])
+ *
+ * @method and
+ * @memberOf Query
+ * @instance
+ * @see $and https://www.mongodb.com/docs/manual/reference/operator/and/
+ * @param {Array} array array of conditions
+ * @return {Query} this
+ * @api public
+ */
+
+/**
+ * Specifies a `$gt` query condition.
+ *
+ * When called with one argument, the most recent path passed to `where()` is used.
+ *
+ * #### Example:
+ *
+ *     Thing.find().where('age').gt(21);
+ *
+ *     // or
+ *     Thing.find().gt('age', 21);
+ *
+ * @method gt
+ * @memberOf Query
+ * @instance
+ * @param {String} [path]
+ * @param {Number} val
+ * @see $gt https://www.mongodb.com/docs/manual/reference/operator/gt/
+ * @api public
+ */
+
+/**
+ * Specifies a `$gte` query condition.
+ *
+ * When called with one argument, the most recent path passed to `where()` is used.
+ *
+ * @method gte
+ * @memberOf Query
+ * @instance
+ * @param {String} [path]
+ * @param {Number} val
+ * @see $gte https://www.mongodb.com/docs/manual/reference/operator/gte/
+ * @api public
+ */
+
+/**
+ * Specifies a `$lt` query condition.
+ *
+ * When called with one argument, the most recent path passed to `where()` is used.
+ *
+ * @method lt
+ * @memberOf Query
+ * @instance
+ * @param {String} [path]
+ * @param {Number} val
+ * @see $lt https://www.mongodb.com/docs/manual/reference/operator/lt/
+ * @api public
+ */
+
+/**
+ * Specifies a `$lte` query condition.
+ *
+ * When called with one argument, the most recent path passed to `where()` is used.
+ *
+ * @method lte
+ * @see $lte https://www.mongodb.com/docs/manual/reference/operator/lte/
+ * @memberOf Query
+ * @instance
+ * @param {String} [path]
+ * @param {Number} val
+ * @api public
+ */
+
+/**
+ * Specifies a `$ne` query condition.
+ *
+ * When called with one argument, the most recent path passed to `where()` is used.
+ *
+ * @see $ne https://www.mongodb.com/docs/manual/reference/operator/ne/
+ * @method ne
+ * @memberOf Query
+ * @instance
+ * @param {String} [path]
+ * @param {any} val
+ * @api public
+ */
+
+/**
+ * Specifies an `$in` query condition.
+ *
+ * When called with one argument, the most recent path passed to `where()` is used.
+ *
+ * @see $in https://www.mongodb.com/docs/manual/reference/operator/in/
+ * @method in
+ * @memberOf Query
+ * @instance
+ * @param {String} [path]
+ * @param {Array} val
+ * @api public
+ */
+
+/**
+ * Specifies an `$nin` query condition.
+ *
+ * When called with one argument, the most recent path passed to `where()` is used.
+ *
+ * @see $nin https://www.mongodb.com/docs/manual/reference/operator/nin/
+ * @method nin
+ * @memberOf Query
+ * @instance
+ * @param {String} [path]
+ * @param {Array} val
+ * @api public
+ */
+
+/**
+ * Specifies an `$all` query condition.
+ *
+ * When called with one argument, the most recent path passed to `where()` is used.
+ *
+ * #### Example:
+ *
+ *     MyModel.find().where('pets').all(['dog', 'cat', 'ferret']);
+ *     // Equivalent:
+ *     MyModel.find().all('pets', ['dog', 'cat', 'ferret']);
+ *
+ * @see $all https://www.mongodb.com/docs/manual/reference/operator/all/
+ * @method all
+ * @memberOf Query
+ * @instance
+ * @param {String} [path]
+ * @param {Array} val
+ * @api public
+ */
+
+/**
+ * Specifies a `$size` query condition.
+ *
+ * When called with one argument, the most recent path passed to `where()` is used.
+ *
+ * #### Example:
+ *
+ *     const docs = await MyModel.where('tags').size(0).exec();
+ *     assert(Array.isArray(docs));
+ *     console.log('documents with 0 tags', docs);
+ *
+ * @see $size https://www.mongodb.com/docs/manual/reference/operator/size/
+ * @method size
+ * @memberOf Query
+ * @instance
+ * @param {String} [path]
+ * @param {Number} val
+ * @api public
+ */
+
+/**
+ * Specifies a `$regex` query condition.
+ *
+ * When called with one argument, the most recent path passed to `where()` is used.
+ *
+ * @see $regex https://www.mongodb.com/docs/manual/reference/operator/regex/
+ * @method regex
+ * @memberOf Query
+ * @instance
+ * @param {String} [path]
+ * @param {String|RegExp} val
+ * @api public
+ */
+
+/**
+ * Specifies a `maxDistance` query condition.
+ *
+ * When called with one argument, the most recent path passed to `where()` is used.
+ *
+ * @see $maxDistance https://www.mongodb.com/docs/manual/reference/operator/maxDistance/
+ * @method maxDistance
+ * @memberOf Query
+ * @instance
+ * @param {String} [path]
+ * @param {Number} val
+ * @api public
+ */
+
+/**
+ * Specifies a `$mod` condition, filters documents for documents whose
+ * `path` property is a number that is equal to `remainder` modulo `divisor`.
+ *
+ * #### Example:
+ *
+ *     // All find products whose inventory is odd
+ *     Product.find().mod('inventory', [2, 1]);
+ *     Product.find().where('inventory').mod([2, 1]);
+ *     // This syntax is a little strange, but supported.
+ *     Product.find().where('inventory').mod(2, 1);
+ *
+ * @method mod
+ * @memberOf Query
+ * @instance
+ * @param {String} [path]
+ * @param {Array} val must be of length 2, first element is `divisor`, 2nd element is `remainder`.
+ * @return {Query} this
+ * @see $mod https://www.mongodb.com/docs/manual/reference/operator/mod/
+ * @api public
+ */
+
+Query.prototype.mod = function() {
+  let val;
+  let path;
+
+  if (arguments.length === 1) {
+    this._ensurePath('mod');
+    val = arguments[0];
+    path = this._path;
+  } else if (arguments.length === 2 && !Array.isArray(arguments[1])) {
+    this._ensurePath('mod');
+    val = [arguments[0], arguments[1]];
+    path = this._path;
+  } else if (arguments.length === 3) {
+    val = [arguments[1], arguments[2]];
+    path = arguments[0];
+  } else {
+    val = arguments[1];
+    path = arguments[0];
+  }
+
+  const conds = this._conditions[path] || (this._conditions[path] = {});
+  conds.$mod = val;
+  return this;
+};
+
+/**
+ * Specifies an `$exists` condition
+ *
+ * #### Example:
+ *
+ *     // { name: { $exists: true }}
+ *     Thing.where('name').exists()
+ *     Thing.where('name').exists(true)
+ *     Thing.find().exists('name')
+ *
+ *     // { name: { $exists: false }}
+ *     Thing.where('name').exists(false);
+ *     Thing.find().exists('name', false);
+ *
+ * @method exists
+ * @memberOf Query
+ * @instance
+ * @param {String} [path]
+ * @param {Boolean} val
+ * @return {Query} this
+ * @see $exists https://www.mongodb.com/docs/manual/reference/operator/exists/
+ * @api public
+ */
+
+/**
+ * Specifies an `$elemMatch` condition
+ *
+ * #### Example:
+ *
+ *     query.elemMatch('comment', { author: 'autobot', votes: {$gte: 5}})
+ *
+ *     query.where('comment').elemMatch({ author: 'autobot', votes: {$gte: 5}})
+ *
+ *     query.elemMatch('comment', function (elem) {
+ *       elem.where('author').equals('autobot');
+ *       elem.where('votes').gte(5);
+ *     })
+ *
+ *     query.where('comment').elemMatch(function (elem) {
+ *       elem.where({ author: 'autobot' });
+ *       elem.where('votes').gte(5);
+ *     })
+ *
+ * @method elemMatch
+ * @memberOf Query
+ * @instance
+ * @param {String|Object|Function} path
+ * @param {Object|Function} filter
+ * @return {Query} this
+ * @see $elemMatch https://www.mongodb.com/docs/manual/reference/operator/elemMatch/
+ * @api public
+ */
+
+/**
+ * Defines a `$within` or `$geoWithin` argument for geo-spatial queries.
+ *
+ * #### Example:
+ *
+ *     query.where(path).within().box()
+ *     query.where(path).within().circle()
+ *     query.where(path).within().geometry()
+ *
+ *     query.where('loc').within({ center: [50,50], radius: 10, unique: true, spherical: true });
+ *     query.where('loc').within({ box: [[40.73, -73.9], [40.7, -73.988]] });
+ *     query.where('loc').within({ polygon: [[],[],[],[]] });
+ *
+ *     query.where('loc').within([], [], []) // polygon
+ *     query.where('loc').within([], []) // box
+ *     query.where('loc').within({ type: 'LineString', coordinates: [...] }); // geometry
+ *
+ * **MUST** be used after `where()`.
+ *
+ * #### Note:
+ *
+ * As of Mongoose 3.7, `$geoWithin` is always used for queries. To change this behavior, see [Query.use$geoWithin](https://mongoosejs.com/docs/api/query.html#Query.prototype.use$geoWithin).
+ *
+ * #### Note:
+ *
+ * In Mongoose 3.7, `within` changed from a getter to a function. If you need the old syntax, use [this](https://github.com/ebensing/mongoose-within).
+ *
+ * @method within
+ * @see $polygon https://www.mongodb.com/docs/manual/reference/operator/polygon/
+ * @see $box https://www.mongodb.com/docs/manual/reference/operator/box/
+ * @see $geometry https://www.mongodb.com/docs/manual/reference/operator/geometry/
+ * @see $center https://www.mongodb.com/docs/manual/reference/operator/center/
+ * @see $centerSphere https://www.mongodb.com/docs/manual/reference/operator/centerSphere/
+ * @memberOf Query
+ * @instance
+ * @return {Query} this
+ * @api public
+ */
+
+/**
+ * Specifies the maximum number of documents the query will return.
+ *
+ * #### Example:
+ *
+ *     query.limit(20);
+ *
+ * #### Note:
+ *
+ * Cannot be used with `distinct()`
+ *
+ * @method limit
+ * @memberOf Query
+ * @instance
+ * @param {Number} val
+ * @api public
+ */
+
+Query.prototype.limit = function limit(v) {
+  this._validate('limit');
+
+  if (typeof v === 'string') {
+    try {
+      v = castNumber(v);
+    } catch (err) {
+      throw new CastError('Number', v, 'limit');
+    }
+  }
+
+  this.options.limit = v;
+  return this;
+};
+
+/**
+ * Specifies the number of documents to skip.
+ *
+ * #### Example:
+ *
+ *     query.skip(100).limit(20);
+ *
+ * #### Note:
+ *
+ * Cannot be used with `distinct()`
+ *
+ * @method skip
+ * @memberOf Query
+ * @instance
+ * @param {Number} val
+ * @see cursor.skip https://www.mongodb.com/docs/manual/reference/method/cursor.skip/
+ * @api public
+ */
+
+Query.prototype.skip = function skip(v) {
+  this._validate('skip');
+
+  if (typeof v === 'string') {
+    try {
+      v = castNumber(v);
+    } catch (err) {
+      throw new CastError('Number', v, 'skip');
+    }
+  }
+
+  this.options.skip = v;
+  return this;
+};
+
+/**
+ * Specifies the batchSize option.
+ *
+ * #### Example:
+ *
+ *     query.batchSize(100)
+ *
+ * #### Note:
+ *
+ * Cannot be used with `distinct()`
+ *
+ * @method batchSize
+ * @memberOf Query
+ * @instance
+ * @param {Number} val
+ * @see batchSize https://www.mongodb.com/docs/manual/reference/method/cursor.batchSize/
+ * @api public
+ */
+
+/**
+ * Specifies the `comment` option.
+ *
+ * #### Example:
+ *
+ *     query.comment('login query')
+ *
+ * #### Note:
+ *
+ * Cannot be used with `distinct()`
+ *
+ * @method comment
+ * @memberOf Query
+ * @instance
+ * @param {String} val
+ * @see comment https://www.mongodb.com/docs/manual/reference/operator/comment/
+ * @api public
+ */
+
+/**
+ * Sets query hints.
+ *
+ * #### Example:
+ *
+ *     query.hint({ indexA: 1, indexB: -1 });
+ *
+ * #### Note:
+ *
+ * Cannot be used with `distinct()`
+ *
+ * @method hint
+ * @memberOf Query
+ * @instance
+ * @param {Object} val a hint object
+ * @return {Query} this
+ * @see $hint https://www.mongodb.com/docs/manual/reference/operator/hint/
+ * @api public
+ */
+
+/**
+ * Get/set the current projection (AKA fields). Pass `null` to remove the
+ * current projection.
+ *
+ * Unlike `projection()`, the `select()` function modifies the current
+ * projection in place. This function overwrites the existing projection.
+ *
+ * #### Example:
+ *
+ *     const q = Model.find();
+ *     q.projection(); // null
+ *
+ *     q.select('a b');
+ *     q.projection(); // { a: 1, b: 1 }
+ *
+ *     q.projection({ c: 1 });
+ *     q.projection(); // { c: 1 }
+ *
+ *     q.projection(null);
+ *     q.projection(); // null
+ *
+ *
+ * @method projection
+ * @memberOf Query
+ * @instance
+ * @param {Object|null} arg
+ * @return {Object} the current projection
+ * @api public
+ */
+
+Query.prototype.projection = function(arg) {
+  if (arguments.length === 0) {
+    return this._fields;
+  }
+
+  this._fields = {};
+  this._userProvidedFields = {};
+  this.select(arg);
+  return this._fields;
+};
+
+/**
+ * Specifies which document fields to include or exclude (also known as the query "projection")
+ *
+ * When using string syntax, prefixing a path with `-` will flag that path as excluded. When a path does not have the `-` prefix, it is included. Lastly, if a path is prefixed with `+`, it forces inclusion of the path, which is useful for paths excluded at the [schema level](https://mongoosejs.com/docs/api/schematype.html#SchemaType.prototype.select()).
+ *
+ * A projection _must_ be either inclusive or exclusive. In other words, you must
+ * either list the fields to include (which excludes all others), or list the fields
+ * to exclude (which implies all other fields are included). The [`_id` field is the only exception because MongoDB includes it by default](https://www.mongodb.com/docs/manual/tutorial/project-fields-from-query-results/#suppress-id-field).
+ *
+ * #### Example:
+ *
+ *     // include a and b, exclude other fields
+ *     query.select('a b');
+ *     // Equivalent syntaxes:
+ *     query.select(['a', 'b']);
+ *     query.select({ a: 1, b: 1 });
+ *
+ *     // exclude c and d, include other fields
+ *     query.select('-c -d');
+ *
+ *     // Use `+` to override schema-level `select: false` without making the
+ *     // projection inclusive.
+ *     const schema = new Schema({
+ *       foo: { type: String, select: false },
+ *       bar: String
+ *     });
+ *     // ...
+ *     query.select('+foo'); // Override foo's `select: false` without excluding `bar`
+ *
+ *     // or you may use object notation, useful when
+ *     // you have keys already prefixed with a "-"
+ *     query.select({ a: 1, b: 1 });
+ *     query.select({ c: 0, d: 0 });
+ *
+ *     Additional calls to select can override the previous selection:
+ *     query.select({ a: 1, b: 1 }).select({ b: 0 }); // selection is now { a: 1 }
+ *     query.select({ a: 0, b: 0 }).select({ b: 1 }); // selection is now { a: 0 }
+ *
+ *
+ * @method select
+ * @memberOf Query
+ * @instance
+ * @param {Object|String|String[]} arg
+ * @return {Query} this
+ * @see SchemaType https://mongoosejs.com/docs/api/schematype.html
+ * @api public
+ */
+
+Query.prototype.select = function select() {
+  let arg = arguments[0];
+  if (!arg) return this;
+
+  if (arguments.length !== 1) {
+    throw new Error('Invalid select: select only takes 1 argument');
+  }
+
+  this._validate('select');
+
+  const fields = this._fields || (this._fields = {});
+  const userProvidedFields = this._userProvidedFields || (this._userProvidedFields = {});
+  let sanitizeProjection = undefined;
+  if (this.model != null && utils.hasUserDefinedProperty(this.model.db.options, 'sanitizeProjection')) {
+    sanitizeProjection = this.model.db.options.sanitizeProjection;
+  } else if (this.model != null && utils.hasUserDefinedProperty(this.model.base.options, 'sanitizeProjection')) {
+    sanitizeProjection = this.model.base.options.sanitizeProjection;
+  } else {
+    sanitizeProjection = this._mongooseOptions.sanitizeProjection;
+  }
+
+  function sanitizeValue(value) {
+    return typeof value === 'string' && sanitizeProjection ? value = 1 : value;
+  }
+  arg = parseProjection(arg, true); // we want to keep the minus and pluses, so add boolean arg.
+  if (utils.isObject(arg)) {
+    if (this.selectedInclusively()) {
+      Object.entries(arg).forEach(([key, value]) => {
+        if (value) {
+          // Add the field to the projection
+          if (fields['-' + key] != null) {
+            delete fields['-' + key];
+          }
+          fields[key] = userProvidedFields[key] = sanitizeValue(value);
+        } else {
+          // Remove the field from the projection
+          Object.keys(userProvidedFields).forEach(field => {
+            if (isSubpath(key, field)) {
+              delete fields[field];
+              delete userProvidedFields[field];
+            }
+          });
+        }
+      });
+    } else if (this.selectedExclusively()) {
+      Object.entries(arg).forEach(([key, value]) => {
+        if (!value) {
+          // Add the field to the projection
+          if (fields['+' + key] != null) {
+            delete fields['+' + key];
+          }
+          fields[key] = userProvidedFields[key] = sanitizeValue(value);
+        } else {
+          // Remove the field from the projection
+          Object.keys(userProvidedFields).forEach(field => {
+            if (isSubpath(key, field)) {
+              delete fields[field];
+              delete userProvidedFields[field];
+            }
+          });
+        }
+      });
+    } else {
+      const keys = Object.keys(arg);
+      for (let i = 0; i < keys.length; ++i) {
+        const value = arg[keys[i]];
+        const key = keys[i];
+        fields[key] = sanitizeValue(value);
+        userProvidedFields[key] = sanitizeValue(value);
+      }
+    }
+
+    return this;
+  }
+
+  throw new TypeError('Invalid select() argument. Must be string or object.');
+};
+
+/**
+ * Enable or disable schema level projections for this query. Enabled by default.
+ * Set to `false` to include fields with `select: false` in the query result by default.
+ *
+ * #### Example:
+ *
+ *     const userSchema = new Schema({
+ *       email: { type: String, required: true },
+ *       passwordHash: { type: String, select: false, required: true }
+ *     });
+ *     const UserModel = mongoose.model('User', userSchema);
+ *
+ *     const doc = await UserModel.findOne().orFail().schemaLevelProjections(false);
+ *
+ *     // Contains password hash, because `schemaLevelProjections()` overrides `select: false`
+ *     doc.passwordHash;
+ *
+ * @method schemaLevelProjections
+ * @memberOf Query
+ * @instance
+ * @param {Boolean} value
+ * @return {Query} this
+ * @see SchemaTypeOptions https://mongoosejs.com/docs/schematypes.html#all-schema-types
+ * @api public
+ */
+
+Query.prototype.schemaLevelProjections = function schemaLevelProjections(value) {
+  this._mongooseOptions.schemaLevelProjections = value;
+
+  return this;
+};
+
+/**
+ * Sets this query's `sanitizeProjection` option. If set, `sanitizeProjection` does
+ * two things:
+ *
+ * 1. Enforces that projection values are numbers, not strings.
+ * 2. Prevents using `+` syntax to override properties that are deselected by default.
+ *
+ * With `sanitizeProjection()`, you can pass potentially untrusted user data to `.select()`.
+ *
+ * #### Example
+ *
+ *     const userSchema = new Schema({
+ *       name: String,
+ *       password: { type: String, select: false }
+ *     });
+ *     const UserModel = mongoose.model('User', userSchema);
+ *     const { _id } = await UserModel.create({ name: 'John', password: 'secret' })
+ *
+ *     // The MongoDB server has special handling for string values that start with '$'
+ *     // in projections, which can lead to unexpected leaking of sensitive data.
+ *     let doc = await UserModel.findOne().select({ name: '$password' });
+ *     doc.name; // 'secret'
+ *     doc.password; // undefined
+ *
+ *     // With `sanitizeProjection`, Mongoose forces all projection values to be numbers
+ *     doc = await UserModel.findOne().sanitizeProjection(true).select({ name: '$password' });
+ *     doc.name; // 'John'
+ *     doc.password; // undefined
+ *
+ *     // By default, Mongoose supports projecting in `password` using `+password`
+ *     doc = await UserModel.findOne().select('+password');
+ *     doc.password; // 'secret'
+ *
+ *     // With `sanitizeProjection`, Mongoose prevents projecting in `password` and other
+ *     // fields that have `select: false` in the schema.
+ *     doc = await UserModel.findOne().sanitizeProjection(true).select('+password');
+ *     doc.password; // undefined
+ *
+ * @method sanitizeProjection
+ * @memberOf Query
+ * @instance
+ * @param {Boolean} value
+ * @return {Query} this
+ * @see sanitizeProjection https://thecodebarbarian.com/whats-new-in-mongoose-5-13-sanitizeprojection.html
+ * @api public
+ */
+
+Query.prototype.sanitizeProjection = function sanitizeProjection(value) {
+  this._mongooseOptions.sanitizeProjection = value;
+
+  return this;
+};
+
+/**
+ * Determines the MongoDB nodes from which to read.
+ *
+ * #### Preferences:
+ *
+ * ```
+ * primary - (default) Read from primary only. Operations will produce an error if primary is unavailable. Cannot be combined with tags.
+ * secondary            Read from secondary if available, otherwise error.
+ * primaryPreferred     Read from primary if available, otherwise a secondary.
+ * secondaryPreferred   Read from a secondary if available, otherwise read from the primary.
+ * nearest              All operations read from among the nearest candidates, but unlike other modes, this option will include both the primary and all secondaries in the random selection.
+ * ```
+ *
+ * Aliases
+ *
+ * ```
+ * p   primary
+ * pp  primaryPreferred
+ * s   secondary
+ * sp  secondaryPreferred
+ * n   nearest
+ * ```
+ *
+ * #### Example:
+ *
+ *     new Query().read('primary')
+ *     new Query().read('p')  // same as primary
+ *
+ *     new Query().read('primaryPreferred')
+ *     new Query().read('pp') // same as primaryPreferred
+ *
+ *     new Query().read('secondary')
+ *     new Query().read('s')  // same as secondary
+ *
+ *     new Query().read('secondaryPreferred')
+ *     new Query().read('sp') // same as secondaryPreferred
+ *
+ *     new Query().read('nearest')
+ *     new Query().read('n')  // same as nearest
+ *
+ *     // read from secondaries with matching tags
+ *     new Query().read('s', [{ dc:'sf', s: 1 },{ dc:'ma', s: 2 }])
+ *
+ * Read more about how to use read preferences [here](https://www.mongodb.com/docs/manual/applications/replication/#read-preference).
+ *
+ * @method read
+ * @memberOf Query
+ * @instance
+ * @param {String} mode one of the listed preference options or aliases
+ * @param {Array} [tags] optional tags for this query
+ * @see mongodb https://www.mongodb.com/docs/manual/applications/replication/#read-preference
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.read = function read(mode, tags) {
+  if (typeof mode === 'string') {
+    mode = handleReadPreferenceAliases(mode);
+    this.options.readPreference = { mode, tags };
+  } else {
+    this.options.readPreference = mode;
+  }
+  return this;
+};
+
+/**
+ * Overwrite default `.toString` to make logging more useful
+ *
+ * @memberOf Query
+ * @instance
+ * @method toString
+ * @api private
+ */
+
+Query.prototype.toString = function toString() {
+  if (this.op === 'count' ||
+      this.op === 'countDocuments' ||
+      this.op === 'find' ||
+      this.op === 'findOne' ||
+      this.op === 'deleteMany' ||
+      this.op === 'deleteOne' ||
+      this.op === 'findOneAndDelete' ||
+      this.op === 'remove') {
+    return `${this.model.modelName}.${this.op}(${util.inspect(this._conditions)})`;
+  }
+  if (this.op === 'distinct') {
+    return `${this.model.modelName}.distinct('${this._distinct}', ${util.inspect(this._conditions)})`;
+  }
+  if (this.op === 'findOneAndReplace' ||
+      this.op === 'findOneAndUpdate' ||
+      this.op === 'replaceOne' ||
+      this.op === 'update' ||
+      this.op === 'updateMany' ||
+      this.op === 'updateOne') {
+    return `${this.model.modelName}.${this.op}(${util.inspect(this._conditions)}, ${util.inspect(this._update)})`;
+  }
+
+  // 'estimatedDocumentCount' or any others
+  return `${this.model.modelName}.${this.op}()`;
+};
+
+/**
+ * Sets the [MongoDB session](https://www.mongodb.com/docs/manual/reference/server-sessions/)
+ * associated with this query. Sessions are how you mark a query as part of a
+ * [transaction](https://mongoosejs.com/docs/transactions.html).
+ *
+ * Calling `session(null)` removes the session from this query.
+ *
+ * #### Example:
+ *
+ *     const s = await mongoose.startSession();
+ *     await mongoose.model('Person').findOne({ name: 'Axl Rose' }).session(s);
+ *
+ * @method session
+ * @memberOf Query
+ * @instance
+ * @param {ClientSession} [session] from `await conn.startSession()`
+ * @see Connection.prototype.startSession() https://mongoosejs.com/docs/api/connection.html#Connection.prototype.startSession()
+ * @see mongoose.startSession() https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.startSession()
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.session = function session(v) {
+  if (v == null) {
+    delete this.options.session;
+  }
+  this.options.session = v;
+  return this;
+};
+
+/**
+ * Sets the 3 write concern parameters for this query:
+ *
+ * - `w`: Sets the specified number of `mongod` servers, or tag set of `mongod` servers, that must acknowledge this write before this write is considered successful.
+ * - `j`: Boolean, set to `true` to request acknowledgement that this operation has been persisted to MongoDB's on-disk journal.
+ * - `wtimeout`: If [`w > 1`](https://mongoosejs.com/docs/api/query.html#Query.prototype.w()), the maximum amount of time to wait for this write to propagate through the replica set before this operation fails. The default is `0`, which means no timeout.
+ *
+ * This option is only valid for operations that write to the database:
+ *
+ * - `deleteOne()`
+ * - `deleteMany()`
+ * - `findOneAndDelete()`
+ * - `findOneAndReplace()`
+ * - `findOneAndUpdate()`
+ * - `updateOne()`
+ * - `updateMany()`
+ *
+ * Defaults to the schema's [`writeConcern` option](https://mongoosejs.com/docs/guide.html#writeConcern)
+ *
+ * #### Example:
+ *
+ *     // The 'majority' option means the `deleteOne()` promise won't resolve
+ *     // until the `deleteOne()` has propagated to the majority of the replica set
+ *     await mongoose.model('Person').
+ *       deleteOne({ name: 'Ned Stark' }).
+ *       writeConcern({ w: 'majority' });
+ *
+ * @method writeConcern
+ * @memberOf Query
+ * @instance
+ * @param {Object} writeConcern the write concern value to set
+ * @see WriteConcernSettings https://mongodb.github.io/node-mongodb-native/4.9/interfaces/WriteConcernSettings.html
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.writeConcern = function writeConcern(val) {
+  if (val == null) {
+    delete this.options.writeConcern;
+    return this;
+  }
+  this.options.writeConcern = val;
+  return this;
+};
+
+/**
+ * Sets the specified number of `mongod` servers, or tag set of `mongod` servers,
+ * that must acknowledge this write before this write is considered successful.
+ * This option is only valid for operations that write to the database:
+ *
+ * - `deleteOne()`
+ * - `deleteMany()`
+ * - `findOneAndDelete()`
+ * - `findOneAndReplace()`
+ * - `findOneAndUpdate()`
+ * - `updateOne()`
+ * - `updateMany()`
+ *
+ * Defaults to the schema's [`writeConcern.w` option](https://mongoosejs.com/docs/guide.html#writeConcern)
+ *
+ * #### Example:
+ *
+ *     // The 'majority' option means the `deleteOne()` promise won't resolve
+ *     // until the `deleteOne()` has propagated to the majority of the replica set
+ *     await mongoose.model('Person').
+ *       deleteOne({ name: 'Ned Stark' }).
+ *       w('majority');
+ *
+ * @method w
+ * @memberOf Query
+ * @instance
+ * @param {String|number} val 0 for fire-and-forget, 1 for acknowledged by one server, 'majority' for majority of the replica set, or [any of the more advanced options](https://www.mongodb.com/docs/manual/reference/write-concern/#w-option).
+ * @see mongodb https://www.mongodb.com/docs/manual/reference/write-concern/#w-option
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.w = function w(val) {
+  if (val == null) {
+    delete this.options.w;
+  }
+  if (this.options.writeConcern != null) {
+    this.options.writeConcern.w = val;
+  } else {
+    this.options.w = val;
+  }
+  return this;
+};
+
+/**
+ * Requests acknowledgement that this operation has been persisted to MongoDB's
+ * on-disk journal.
+ * This option is only valid for operations that write to the database:
+ *
+ * - `deleteOne()`
+ * - `deleteMany()`
+ * - `findOneAndDelete()`
+ * - `findOneAndReplace()`
+ * - `findOneAndUpdate()`
+ * - `updateOne()`
+ * - `updateMany()`
+ *
+ * Defaults to the schema's [`writeConcern.j` option](https://mongoosejs.com/docs/guide.html#writeConcern)
+ *
+ * #### Example:
+ *
+ *     await mongoose.model('Person').deleteOne({ name: 'Ned Stark' }).j(true);
+ *
+ * @method j
+ * @memberOf Query
+ * @instance
+ * @param {boolean} val
+ * @see mongodb https://www.mongodb.com/docs/manual/reference/write-concern/#j-option
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.j = function j(val) {
+  if (val == null) {
+    delete this.options.j;
+  }
+  if (this.options.writeConcern != null) {
+    this.options.writeConcern.j = val;
+  } else {
+    this.options.j = val;
+  }
+  return this;
+};
+
+/**
+ * If [`w > 1`](https://mongoosejs.com/docs/api/query.html#Query.prototype.w()), the maximum amount of time to
+ * wait for this write to propagate through the replica set before this
+ * operation fails. The default is `0`, which means no timeout.
+ *
+ * This option is only valid for operations that write to the database:
+ *
+ * - `deleteOne()`
+ * - `deleteMany()`
+ * - `findOneAndDelete()`
+ * - `findOneAndReplace()`
+ * - `findOneAndUpdate()`
+ * - `updateOne()`
+ * - `updateMany()`
+ *
+ * Defaults to the schema's [`writeConcern.wtimeout` option](https://mongoosejs.com/docs/guide.html#writeConcern)
+ *
+ * #### Example:
+ *
+ *     // The `deleteOne()` promise won't resolve until this `deleteOne()` has
+ *     // propagated to at least `w = 2` members of the replica set. If it takes
+ *     // longer than 1 second, this `deleteOne()` will fail.
+ *     await mongoose.model('Person').
+ *       deleteOne({ name: 'Ned Stark' }).
+ *       w(2).
+ *       wtimeout(1000);
+ *
+ * @method wtimeout
+ * @memberOf Query
+ * @instance
+ * @param {number} ms number of milliseconds to wait
+ * @see mongodb https://www.mongodb.com/docs/manual/reference/write-concern/#wtimeout
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.wtimeout = function wtimeout(ms) {
+  if (ms == null) {
+    delete this.options.wtimeout;
+  }
+  if (this.options.writeConcern != null) {
+    this.options.writeConcern.wtimeout = ms;
+  } else {
+    this.options.wtimeout = ms;
+  }
+  return this;
+};
+
+/**
+ * Sets the readConcern option for the query.
+ *
+ * #### Example:
+ *
+ *     new Query().readConcern('local')
+ *     new Query().readConcern('l')  // same as local
+ *
+ *     new Query().readConcern('available')
+ *     new Query().readConcern('a')  // same as available
+ *
+ *     new Query().readConcern('majority')
+ *     new Query().readConcern('m')  // same as majority
+ *
+ *     new Query().readConcern('linearizable')
+ *     new Query().readConcern('lz') // same as linearizable
+ *
+ *     new Query().readConcern('snapshot')
+ *     new Query().readConcern('s')  // same as snapshot
+ *
+ *
+ * #### Read Concern Level:
+ *
+ * ```
+ * local         MongoDB 3.2+ The query returns from the instance with no guarantee guarantee that the data has been written to a majority of the replica set members (i.e. may be rolled back).
+ * available     MongoDB 3.6+ The query returns from the instance with no guarantee guarantee that the data has been written to a majority of the replica set members (i.e. may be rolled back).
+ * majority      MongoDB 3.2+ The query returns the data that has been acknowledged by a majority of the replica set members. The documents returned by the read operation are durable, even in the event of failure.
+ * linearizable  MongoDB 3.4+ The query returns data that reflects all successful majority-acknowledged writes that completed prior to the start of the read operation. The query may wait for concurrently executing writes to propagate to a majority of replica set members before returning results.
+ * snapshot      MongoDB 4.0+ Only available for operations within multi-document transactions. Upon transaction commit with write concern "majority", the transaction operations are guaranteed to have read from a snapshot of majority-committed data.
+ * ```
+ *
+ * Aliases
+ *
+ * ```
+ * l   local
+ * a   available
+ * m   majority
+ * lz  linearizable
+ * s   snapshot
+ * ```
+ *
+ * Read more about how to use read concern [here](https://www.mongodb.com/docs/manual/reference/read-concern/).
+ *
+ * @memberOf Query
+ * @method readConcern
+ * @param {String} level one of the listed read concern level or their aliases
+ * @see mongodb https://www.mongodb.com/docs/manual/reference/read-concern/
+ * @return {Query} this
+ * @api public
+ */
+
+/**
+ * Gets query options.
+ *
+ * #### Example:
+ *
+ *     const query = new Query();
+ *     query.limit(10);
+ *     query.setOptions({ maxTimeMS: 1000 });
+ *     query.getOptions(); // { limit: 10, maxTimeMS: 1000 }
+ *
+ * @return {Object} the options
+ * @api public
+ */
+
+Query.prototype.getOptions = function() {
+  return this.options;
+};
+
+/**
+ * Sets query options. Some options only make sense for certain operations.
+ *
+ * #### Options:
+ *
+ * The following options are only for `find()`:
+ *
+ * - [tailable](https://www.mongodb.com/docs/manual/core/tailable-cursors/)
+ * - [limit](https://www.mongodb.com/docs/manual/reference/method/cursor.limit/)
+ * - [skip](https://www.mongodb.com/docs/manual/reference/method/cursor.skip/)
+ * - [allowDiskUse](https://www.mongodb.com/docs/manual/reference/method/cursor.allowDiskUse/)
+ * - [batchSize](https://www.mongodb.com/docs/manual/reference/method/cursor.batchSize/)
+ * - [readPreference](https://www.mongodb.com/docs/manual/applications/replication/#read-preference)
+ * - [hint](https://www.mongodb.com/docs/manual/reference/method/cursor.hint/)
+ * - [comment](https://www.mongodb.com/docs/manual/reference/method/cursor.comment/)
+ *
+ * The following options are only for write operations: `updateOne()`, `updateMany()`, `replaceOne()`, `findOneAndUpdate()`, and `findByIdAndUpdate()`:
+ *
+ * - [upsert](https://www.mongodb.com/docs/manual/reference/method/db.collection.update/)
+ * - [writeConcern](https://www.mongodb.com/docs/manual/reference/method/db.collection.update/)
+ * - [timestamps](https://mongoosejs.com/docs/guide.html#timestamps): If `timestamps` is set in the schema, set this option to `false` to skip timestamps for that particular update. Has no effect if `timestamps` is not enabled in the schema options.
+ * - overwriteDiscriminatorKey: allow setting the discriminator key in the update. Will use the correct discriminator schema if the update changes the discriminator key.
+ * - overwriteImmutable: allow overwriting properties that are set to `immutable` in the schema. Defaults to false.
+ *
+ * The following options are only for `find()`, `findOne()`, `findById()`, `findOneAndUpdate()`, `findOneAndReplace()`, `findOneAndDelete()`, and `findByIdAndUpdate()`:
+ *
+ * - [lean](https://mongoosejs.com/docs/api/query.html#Query.prototype.lean())
+ * - [populate](https://mongoosejs.com/docs/populate.html)
+ * - [projection](https://mongoosejs.com/docs/api/query.html#Query.prototype.projection())
+ * - sanitizeProjection
+ * - useBigInt64
+ *
+ * The following options are only for all operations **except** `updateOne()`, `updateMany()`, `deleteOne()`, and `deleteMany()`:
+ *
+ * - [maxTimeMS](https://www.mongodb.com/docs/manual/reference/operator/meta/maxTimeMS/)
+ *
+ * The following options are for `find()`, `findOne()`, `findOneAndUpdate()`, `findOneAndDelete()`, `updateOne()`, and `deleteOne()`:
+ *
+ * - [sort](https://www.mongodb.com/docs/manual/reference/method/cursor.sort/)
+ *
+ * The following options are for `findOneAndUpdate()` and `findOneAndDelete()`
+ *
+ * - includeResultMetadata
+ *
+ * The following options are for all operations:
+ *
+ * - [strict](https://mongoosejs.com/docs/guide.html#strict)
+ * - [collation](https://www.mongodb.com/docs/manual/reference/collation/)
+ * - [session](https://www.mongodb.com/docs/manual/reference/server-sessions/)
+ * - [explain](https://www.mongodb.com/docs/manual/reference/method/cursor.explain/)
+ *
+ * @param {Object} options
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.setOptions = function(options, overwrite) {
+  // overwrite is only for internal use
+  if (overwrite) {
+    // ensure that _mongooseOptions & options are two different objects
+    this._mongooseOptions = (options && clone(options)) || {};
+    this.options = options || {};
+
+    if ('populate' in options) {
+      this.populate(this._mongooseOptions);
+    }
+    return this;
+  }
+  if (options == null) {
+    return this;
+  }
+  if (typeof options !== 'object') {
+    throw new Error('Options must be an object, got "' + options + '"');
+  }
+
+  options = Object.assign({}, options);
+
+  if (Array.isArray(options.populate)) {
+    const populate = options.populate;
+    delete options.populate;
+    const _numPopulate = populate.length;
+    for (let i = 0; i < _numPopulate; ++i) {
+      this.populate(populate[i]);
+    }
+  }
+
+  if ('setDefaultsOnInsert' in options) {
+    this._mongooseOptions.setDefaultsOnInsert = options.setDefaultsOnInsert;
+    delete options.setDefaultsOnInsert;
+  }
+  if ('overwriteDiscriminatorKey' in options) {
+    this._mongooseOptions.overwriteDiscriminatorKey = options.overwriteDiscriminatorKey;
+    delete options.overwriteDiscriminatorKey;
+  }
+  if ('overwriteImmutable' in options) {
+    this._mongooseOptions.overwriteImmutable = options.overwriteImmutable;
+    delete options.overwriteImmutable;
+  }
+  if ('sanitizeProjection' in options) {
+    if (options.sanitizeProjection && !this._mongooseOptions.sanitizeProjection) {
+      sanitizeProjection(this._fields);
+    }
+
+    this._mongooseOptions.sanitizeProjection = options.sanitizeProjection;
+    delete options.sanitizeProjection;
+  }
+  if ('sanitizeFilter' in options) {
+    this._mongooseOptions.sanitizeFilter = options.sanitizeFilter;
+    delete options.sanitizeFilter;
+  }
+  if ('timestamps' in options) {
+    this._mongooseOptions.timestamps = options.timestamps;
+    delete options.timestamps;
+  }
+  if ('defaults' in options) {
+    this._mongooseOptions.defaults = options.defaults;
+    // deleting options.defaults will cause 7287 to fail
+  }
+  if ('translateAliases' in options) {
+    this._mongooseOptions.translateAliases = options.translateAliases;
+    delete options.translateAliases;
+  }
+  if ('schemaLevelProjections' in options) {
+    this._mongooseOptions.schemaLevelProjections = options.schemaLevelProjections;
+    delete options.schemaLevelProjections;
+  }
+
+  if (options.lean == null && this.schema && 'lean' in this.schema.options) {
+    this._mongooseOptions.lean = this.schema.options.lean;
+  }
+
+  if (typeof options.limit === 'string') {
+    try {
+      options.limit = castNumber(options.limit);
+    } catch (err) {
+      throw new CastError('Number', options.limit, 'limit');
+    }
+  }
+  if (typeof options.skip === 'string') {
+    try {
+      options.skip = castNumber(options.skip);
+    } catch (err) {
+      throw new CastError('Number', options.skip, 'skip');
+    }
+  }
+
+  // set arbitrary options
+  for (const key of Object.keys(options)) {
+    if (queryOptionMethods.has(key)) {
+      const args = Array.isArray(options[key]) ?
+        options[key] :
+        [options[key]];
+      this[key].apply(this, args);
+    } else {
+      this.options[key] = options[key];
+    }
+  }
+
+  return this;
+};
+
+/**
+ * Sets the [`explain` option](https://www.mongodb.com/docs/manual/reference/method/cursor.explain/),
+ * which makes this query return detailed execution stats instead of the actual
+ * query result. This method is useful for determining what index your queries
+ * use.
+ *
+ * Calling `query.explain(v)` is equivalent to `query.setOptions({ explain: v })`
+ *
+ * #### Example:
+ *
+ *     const query = new Query();
+ *     const res = await query.find({ a: 1 }).explain('queryPlanner');
+ *     console.log(res);
+ *
+ * @param {String} [verbose] The verbosity mode. Either 'queryPlanner', 'executionStats', or 'allPlansExecution'. The default is 'queryPlanner'
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.explain = function explain(verbose) {
+  if (arguments.length === 0) {
+    this.options.explain = true;
+  } else if (verbose === false) {
+    delete this.options.explain;
+  } else {
+    this.options.explain = verbose;
+  }
+  return this;
+};
+
+/**
+ * Sets the [`allowDiskUse` option](https://www.mongodb.com/docs/manual/reference/method/cursor.allowDiskUse/),
+ * which allows the MongoDB server to use more than 100 MB for this query's `sort()`. This option can
+ * let you work around `QueryExceededMemoryLimitNoDiskUseAllowed` errors from the MongoDB server.
+ *
+ * Note that this option requires MongoDB server >= 4.4. Setting this option is a no-op for MongoDB 4.2
+ * and earlier.
+ *
+ * Calling `query.allowDiskUse(v)` is equivalent to `query.setOptions({ allowDiskUse: v })`
+ *
+ * #### Example:
+ *
+ *     await query.find().sort({ name: 1 }).allowDiskUse(true);
+ *     // Equivalent:
+ *     await query.find().sort({ name: 1 }).allowDiskUse();
+ *
+ * @param {Boolean} [v] Enable/disable `allowDiskUse`. If called with 0 arguments, sets `allowDiskUse: true`
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.allowDiskUse = function(v) {
+  if (arguments.length === 0) {
+    this.options.allowDiskUse = true;
+  } else if (v === false) {
+    delete this.options.allowDiskUse;
+  } else {
+    this.options.allowDiskUse = v;
+  }
+  return this;
+};
+
+/**
+ * Sets the [maxTimeMS](https://www.mongodb.com/docs/manual/reference/method/cursor.maxTimeMS/)
+ * option. This will tell the MongoDB server to abort if the query or write op
+ * has been running for more than `ms` milliseconds.
+ *
+ * Calling `query.maxTimeMS(v)` is equivalent to `query.setOptions({ maxTimeMS: v })`
+ *
+ * #### Example:
+ *
+ *     const query = new Query();
+ *     // Throws an error 'operation exceeded time limit' as long as there's
+ *     // >= 1 doc in the queried collection
+ *     const res = await query.find({ $where: 'sleep(1000) || true' }).maxTimeMS(100);
+ *
+ * @param {Number} [ms] The number of milliseconds
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.maxTimeMS = function(ms) {
+  this.options.maxTimeMS = ms;
+  return this;
+};
+
+/**
+ * Returns the current query filter (also known as conditions) as a [POJO](https://masteringjs.io/tutorials/fundamentals/pojo).
+ *
+ * #### Example:
+ *
+ *     const query = new Query();
+ *     query.find({ a: 1 }).where('b').gt(2);
+ *     query.getFilter(); // { a: 1, b: { $gt: 2 } }
+ *
+ * @return {Object} current query filter
+ * @api public
+ */
+
+Query.prototype.getFilter = function() {
+  return this._conditions;
+};
+
+/**
+ * Returns the current query filter. Equivalent to `getFilter()`.
+ *
+ * You should use `getFilter()` instead of `getQuery()` where possible. `getQuery()`
+ * will likely be deprecated in a future release.
+ *
+ * #### Example:
+ *
+ *     const query = new Query();
+ *     query.find({ a: 1 }).where('b').gt(2);
+ *     query.getQuery(); // { a: 1, b: { $gt: 2 } }
+ *
+ * @return {Object} current query filter
+ * @api public
+ */
+
+Query.prototype.getQuery = function() {
+  return this._conditions;
+};
+
+/**
+ * Sets the query conditions to the provided JSON object.
+ *
+ * #### Example:
+ *
+ *     const query = new Query();
+ *     query.find({ a: 1 })
+ *     query.setQuery({ a: 2 });
+ *     query.getQuery(); // { a: 2 }
+ *
+ * @param {Object} new query conditions
+ * @return {undefined}
+ * @api public
+ */
+
+Query.prototype.setQuery = function(val) {
+  this._conditions = val;
+};
+
+/**
+ * Returns the current update operations as a JSON object.
+ *
+ * #### Example:
+ *
+ *     const query = new Query();
+ *     query.updateOne({}, { $set: { a: 5 } });
+ *     query.getUpdate(); // { $set: { a: 5 } }
+ *
+ * @return {Object} current update operations
+ * @api public
+ */
+
+Query.prototype.getUpdate = function() {
+  return this._update;
+};
+
+/**
+ * Sets the current update operation to new value.
+ *
+ * #### Example:
+ *
+ *     const query = new Query();
+ *     query.updateOne({}, { $set: { a: 5 } });
+ *     query.setUpdate({ $set: { b: 6 } });
+ *     query.getUpdate(); // { $set: { b: 6 } }
+ *
+ * @param {Object} new update operation
+ * @return {undefined}
+ * @api public
+ */
+
+Query.prototype.setUpdate = function(val) {
+  this._update = val;
+};
+
+/**
+ * Returns fields selection for this query.
+ *
+ * @method _fieldsForExec
+ * @return {Object}
+ * @api private
+ * @memberOf Query
+ */
+
+Query.prototype._fieldsForExec = function() {
+  if (this._fields == null) {
+    return null;
+  }
+  if (Object.keys(this._fields).length === 0) {
+    return null;
+  }
+  return clone(this._fields);
+};
+
+
+/**
+ * Return an update document with corrected `$set` operations.
+ *
+ * @method _updateForExec
+ * @return {Object}
+ * @api private
+ * @memberOf Query
+ */
+
+Query.prototype._updateForExec = function() {
+  const update = clone(this._update, {
+    transform: false,
+    depopulate: true
+  });
+  const ops = Object.keys(update);
+  let i = ops.length;
+  const ret = {};
+
+  while (i--) {
+    const op = ops[i];
+
+    if ('$' !== op[0]) {
+      // fix up $set sugar
+      if (!ret.$set) {
+        if (update.$set) {
+          ret.$set = update.$set;
+        } else {
+          ret.$set = {};
+        }
+      }
+      ret.$set[op] = update[op];
+      ops.splice(i, 1);
+      if (!~ops.indexOf('$set')) ops.push('$set');
+    } else if ('$set' === op) {
+      if (!ret.$set) {
+        ret[op] = update[op];
+      }
+    } else {
+      ret[op] = update[op];
+    }
+  }
+
+  return ret;
+};
+
+/**
+ * Makes sure _path is set.
+ *
+ * This method is inherited by `mquery`
+ *
+ * @method _ensurePath
+ * @param {String} method
+ * @api private
+ * @memberOf Query
+ */
+
+/**
+ * Determines if `conds` can be merged using `mquery().merge()`
+ *
+ * @method canMerge
+ * @memberOf Query
+ * @instance
+ * @param {Object} conds
+ * @return {Boolean}
+ * @api private
+ */
+
+/**
+ * Returns default options for this query.
+ *
+ * @param {Model} model
+ * @api private
+ */
+
+Query.prototype._optionsForExec = function(model) {
+  const options = clone(this.options);
+  delete options.populate;
+  model = model || this.model;
+
+  if (!model) {
+    return options;
+  }
+  applyReadConcern(model.schema, options);
+  // Apply schema-level `writeConcern` option
+  applyWriteConcern(model.schema, options);
+
+  const asyncLocalStorage = this.model?.db?.base.transactionAsyncLocalStorage?.getStore();
+  if (!this.options.hasOwnProperty('session') && asyncLocalStorage?.session != null) {
+    options.session = asyncLocalStorage.session;
+  }
+
+  const readPreference = model &&
+  model.schema &&
+  model.schema.options &&
+  model.schema.options.read;
+  if (!('readPreference' in options) && readPreference) {
+    options.readPreference = readPreference;
+  }
+
+  if (options.upsert !== void 0) {
+    options.upsert = !!options.upsert;
+  }
+  if (options.writeConcern) {
+    if (options.j) {
+      options.writeConcern.j = options.j;
+      delete options.j;
+    }
+    if (options.w) {
+      options.writeConcern.w = options.w;
+      delete options.w;
+    }
+    if (options.wtimeout) {
+      options.writeConcern.wtimeout = options.wtimeout;
+      delete options.wtimeout;
+    }
+  }
+
+  this._applyPaths();
+  if (this._fields != null) {
+    this._fields = this._castFields(this._fields);
+    const projection = this._fieldsForExec();
+    if (projection != null) {
+      options.projection = projection;
+    }
+  }
+
+  return options;
+};
+
+/**
+ * Sets the lean option.
+ *
+ * Documents returned from queries with the `lean` option enabled are plain
+ * javascript objects, not [Mongoose Documents](https://mongoosejs.com/docs/api/document.html). They have no
+ * `save` method, getters/setters, virtuals, or other Mongoose features.
+ *
+ * #### Example:
+ *
+ *     new Query().lean() // true
+ *     new Query().lean(true)
+ *     new Query().lean(false)
+ *
+ *     const docs = await Model.find().lean();
+ *     docs[0] instanceof mongoose.Document; // false
+ *
+ * [Lean is great for high-performance, read-only cases](https://mongoosejs.com/docs/tutorials/lean.html),
+ * especially when combined
+ * with [cursors](https://mongoosejs.com/docs/queries.html#streaming).
+ *
+ * If you need virtuals, getters/setters, or defaults with `lean()`, you need
+ * to use a plugin. See:
+ *
+ * - [mongoose-lean-virtuals](https://plugins.mongoosejs.io/plugins/lean-virtuals)
+ * - [mongoose-lean-getters](https://plugins.mongoosejs.io/plugins/lean-getters)
+ * - [mongoose-lean-defaults](https://www.npmjs.com/package/mongoose-lean-defaults)
+ *
+ * @param {Boolean|Object} bool defaults to true
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.lean = function(v) {
+  this._mongooseOptions.lean = arguments.length ? v : true;
+  return this;
+};
+
+/**
+ * Adds a `$set` to this query's update without changing the operation.
+ * This is useful for query middleware so you can add an update regardless
+ * of whether you use `updateOne()`, `updateMany()`, `findOneAndUpdate()`, etc.
+ *
+ * #### Example:
+ *
+ *     // Updates `{ $set: { updatedAt: new Date() } }`
+ *     new Query().updateOne({}, {}).set('updatedAt', new Date());
+ *     new Query().updateMany({}, {}).set({ updatedAt: new Date() });
+ *
+ * @param {String|Object} path path or object of key/value pairs to set
+ * @param {Any} [val] the value to set
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.set = function(path, val) {
+  if (typeof path === 'object') {
+    const keys = Object.keys(path);
+    for (const key of keys) {
+      this.set(key, path[key]);
+    }
+    return this;
+  }
+
+  this._update = this._update || {};
+  if (path in this._update) {
+    delete this._update[path];
+  }
+  this._update.$set = this._update.$set || {};
+  this._update.$set[path] = val;
+  return this;
+};
+
+/**
+ * For update operations, returns the value of a path in the update's `$set`.
+ * Useful for writing getters/setters that can work with both update operations
+ * and `save()`.
+ *
+ * #### Example:
+ *
+ *     const query = Model.updateOne({}, { $set: { name: 'Jean-Luc Picard' } });
+ *     query.get('name'); // 'Jean-Luc Picard'
+ *
+ * @param {String|Object} path path or object of key/value pairs to get
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.get = function get(path) {
+  const update = this._update;
+  if (update == null) {
+    return void 0;
+  }
+  const $set = update.$set;
+  if ($set == null) {
+    return update[path];
+  }
+
+  if (utils.hasUserDefinedProperty(update, path)) {
+    return update[path];
+  }
+  if (utils.hasUserDefinedProperty($set, path)) {
+    return $set[path];
+  }
+
+  return void 0;
+};
+
+/**
+ * Gets/sets the error flag on this query. If this flag is not null or
+ * undefined, the `exec()` promise will reject without executing.
+ *
+ * #### Example:
+ *
+ *     Query().error(); // Get current error value
+ *     Query().error(null); // Unset the current error
+ *     Query().error(new Error('test')); // `exec()` will resolve with test
+ *     Schema.pre('find', function() {
+ *       if (!this.getQuery().userId) {
+ *         this.error(new Error('Not allowed to query without setting userId'));
+ *       }
+ *     });
+ *
+ * Note that query casting runs **after** hooks, so cast errors will override
+ * custom errors.
+ *
+ * #### Example:
+ *
+ *     const TestSchema = new Schema({ num: Number });
+ *     const TestModel = db.model('Test', TestSchema);
+ *     TestModel.find({ num: 'not a number' }).error(new Error('woops')).exec(function(error) {
+ *       // `error` will be a cast error because `num` failed to cast
+ *     });
+ *
+ * @param {Error|null} err if set, `exec()` will fail fast before sending the query to MongoDB
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.error = function error(err) {
+  if (arguments.length === 0) {
+    return this._error;
+  }
+
+  this._error = err;
+  return this;
+};
+
+/**
+ * ignore
+ * @method _unsetCastError
+ * @instance
+ * @memberOf Query
+ * @api private
+ */
+
+Query.prototype._unsetCastError = function _unsetCastError() {
+  if (this._error == null || !(this._error instanceof CastError)) {
+    return;
+  }
+  return this.error(null);
+};
+
+/**
+ * Getter/setter around the current mongoose-specific options for this query
+ * Below are the current Mongoose-specific options.
+ *
+ * - `populate`: an array representing what paths will be populated. Should have one entry for each call to [`Query.prototype.populate()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.populate())
+ * - `lean`: if truthy, Mongoose will not [hydrate](https://mongoosejs.com/docs/api/model.html#Model.hydrate()) any documents that are returned from this query. See [`Query.prototype.lean()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.lean()) for more information.
+ * - `strict`: controls how Mongoose handles keys that aren't in the schema for updates. This option is `true` by default, which means Mongoose will silently strip any paths in the update that aren't in the schema. See the [`strict` mode docs](https://mongoosejs.com/docs/guide.html#strict) for more information.
+ * - `strictQuery`: controls how Mongoose handles keys that aren't in the schema for the query `filter`. This option is `false` by default, which means Mongoose will allow `Model.find({ foo: 'bar' })` even if `foo` is not in the schema. See the [`strictQuery` docs](https://mongoosejs.com/docs/guide.html#strictQuery) for more information.
+ * - `nearSphere`: use `$nearSphere` instead of `near()`. See the [`Query.prototype.nearSphere()` docs](https://mongoosejs.com/docs/api/query.html#Query.prototype.nearSphere())
+ * - `schemaLevelProjections`: if `false`, Mongoose will not apply schema-level `select: false` or `select: true` for this query
+ *
+ * Mongoose maintains a separate object for internal options because
+ * Mongoose sends `Query.prototype.options` to the MongoDB server, and the
+ * above options are not relevant for the MongoDB server.
+ *
+ * @param {Object} options if specified, overwrites the current options
+ * @return {Object} the options
+ * @api public
+ */
+
+Query.prototype.mongooseOptions = function(v) {
+  if (arguments.length > 0) {
+    this._mongooseOptions = v;
+  }
+  return this._mongooseOptions;
+};
+
+/**
+ * ignore
+ * @method _castConditions
+ * @memberOf Query
+ * @api private
+ * @instance
+ */
+
+Query.prototype._castConditions = function() {
+  let sanitizeFilterOpt = undefined;
+  if (this.model?.db.options?.sanitizeFilter != null) {
+    sanitizeFilterOpt = this.model.db.options.sanitizeFilter;
+  } else if (this.model?.base.options?.sanitizeFilter != null) {
+    sanitizeFilterOpt = this.model.base.options.sanitizeFilter;
+  } else {
+    sanitizeFilterOpt = this._mongooseOptions.sanitizeFilter;
+  }
+
+  if (sanitizeFilterOpt) {
+    sanitizeFilter(this._conditions);
+  }
+
+  try {
+    this.cast(this.model);
+    this._unsetCastError();
+  } catch (err) {
+    this.error(err);
+  }
+};
+
+/*!
+ * ignore
+ */
+
+function _castArrayFilters(query) {
+  try {
+    castArrayFilters(query);
+  } catch (err) {
+    query.error(err);
+  }
+}
+
+/**
+ * Execute a `find()`
+ *
+ * @return {Query} this
+ * @api private
+ */
+Query.prototype._find = async function _find() {
+  this._applyTranslateAliases();
+  this._castConditions();
+
+  if (this.error() != null) {
+    throw this.error();
+  }
+
+  const mongooseOptions = this._mongooseOptions;
+  const _this = this;
+  const userProvidedFields = _this._userProvidedFields || {};
+
+  applyGlobalMaxTimeMS(this.options, this.model.db.options, this.model.base.options);
+  applyGlobalDiskUse(this.options, this.model.db.options, this.model.base.options);
+
+  // Separate options to pass down to `completeMany()` in case we need to
+  // set a session on the document
+  const completeManyOptions = Object.assign({}, {
+    session: this && this.options && this.options.session || null,
+    lean: mongooseOptions.lean || null
+  });
+
+  const options = this._optionsForExec();
+
+  const filter = this._conditions;
+  const fields = options.projection;
+
+  const cursor = await this.mongooseCollection.find(filter, options);
+  if (options.explain) {
+    return cursor.explain();
+  }
+
+  let docs = await cursor.toArray();
+  if (docs.length === 0) {
+    return docs;
+  }
+
+  if (!mongooseOptions.populate) {
+    const versionKey = _this.schema.options.versionKey;
+    if (mongooseOptions.lean && mongooseOptions.lean.versionKey === false && versionKey) {
+      docs.forEach((doc) => {
+        if (versionKey in doc) {
+          delete doc[versionKey];
+        }
+      });
+    }
+    return mongooseOptions.lean ?
+      _completeManyLean(_this.model.schema, docs, null, completeManyOptions) :
+      _this._completeMany(docs, fields, userProvidedFields, completeManyOptions);
+  }
+
+  const pop = helpers.preparePopulationOptionsMQ(_this, mongooseOptions);
+
+  if (mongooseOptions.lean) {
+    return _this.model.populate(docs, pop);
+  }
+
+  docs = await _this._completeMany(docs, fields, userProvidedFields, completeManyOptions);
+  await this.model.populate(docs, pop);
+
+  return docs;
+};
+
+/**
+ * Find all documents that match `selector`. The result will be an array of documents.
+ *
+ * If there are too many documents in the result to fit in memory, use
+ * [`Query.prototype.cursor()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.cursor())
+ *
+ * #### Example:
+ *
+ *     const arr = await Movie.find({ year: { $gte: 1980, $lte: 1989 } });
+ *
+ * @param {Object|ObjectId} [filter] mongodb filter. If not specified, returns all documents.
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.find = function(conditions) {
+  if (typeof conditions === 'function' ||
+      typeof arguments[1] === 'function') {
+    throw new MongooseError('Query.prototype.find() no longer accepts a callback');
+  }
+
+  this.op = 'find';
+
+  if (mquery.canMerge(conditions)) {
+    this.merge(conditions);
+
+    prepareDiscriminatorCriteria(this);
+  } else if (conditions != null) {
+    this.error(new ObjectParameterError(conditions, 'filter', 'find'));
+  }
+
+  return this;
+};
+
+/**
+ * Merges another Query or conditions object into this one.
+ *
+ * When a Query is passed, conditions, field selection and options are merged.
+ *
+ * @param {Query|Object} source
+ * @return {Query} this
+ */
+
+Query.prototype.merge = function(source) {
+  if (!source) {
+    return this;
+  }
+
+  const opts = { overwrite: true };
+
+  if (source instanceof Query) {
+    // if source has a feature, apply it to ourselves
+
+    if (source._conditions) {
+      opts.omit = {};
+      if (this._conditions && this._conditions.$and && source._conditions.$and) {
+        opts.omit['$and'] = true;
+        this._conditions.$and = this._conditions.$and.concat(source._conditions.$and);
+      }
+      if (this._conditions && this._conditions.$or && source._conditions.$or) {
+        opts.omit['$or'] = true;
+        this._conditions.$or = this._conditions.$or.concat(source._conditions.$or);
+      }
+      utils.merge(this._conditions, source._conditions, opts);
+    }
+
+    if (source._fields) {
+      this._fields || (this._fields = {});
+      utils.merge(this._fields, source._fields, opts);
+    }
+
+    if (source.options) {
+      this.options || (this.options = {});
+      utils.merge(this.options, source.options, opts);
+    }
+
+    if (source._update) {
+      this._update || (this._update = {});
+      utils.mergeClone(this._update, source._update);
+    }
+
+    if (source._distinct) {
+      this._distinct = source._distinct;
+    }
+
+    utils.merge(this._mongooseOptions, source._mongooseOptions);
+
+    return this;
+  } else if (this.model != null && source instanceof this.model.base.Types.ObjectId) {
+    utils.merge(this._conditions, { _id: source }, opts);
+
+    return this;
+  } else if (source && source.$__) {
+    source = source.toObject(internalToObjectOptions);
+  }
+
+  opts.omit = {};
+  if (Array.isArray(source.$and)) {
+    opts.omit['$and'] = true;
+    if (!this._conditions) {
+      this._conditions = {};
+    }
+    this._conditions.$and = (this._conditions.$and || []).concat(
+      source.$and.map(el => utils.isPOJO(el) ? utils.merge({}, el) : el)
+    );
+  }
+  if (Array.isArray(source.$or)) {
+    opts.omit['$or'] = true;
+    if (!this._conditions) {
+      this._conditions = {};
+    }
+    this._conditions.$or = (this._conditions.$or || []).concat(
+      source.$or.map(el => utils.isPOJO(el) ? utils.merge({}, el) : el)
+    );
+  }
+
+  // plain object
+  utils.merge(this._conditions, source, opts);
+
+  return this;
+};
+
+/**
+ * Adds a collation to this op (MongoDB 3.4 and up)
+ *
+ * @param {Object} value
+ * @return {Query} this
+ * @see MongoDB docs https://www.mongodb.com/docs/manual/reference/method/cursor.collation/#cursor.collation
+ * @api public
+ */
+
+Query.prototype.collation = function(value) {
+  if (this.options == null) {
+    this.options = {};
+  }
+  this.options.collation = value;
+  return this;
+};
+
+/**
+ * Hydrate a single doc from `findOne()`, `findOneAndUpdate()`, etc.
+ *
+ * @api private
+ */
+
+Query.prototype._completeOne = function(doc, res, projection, callback) {
+  if (!doc && !this.options.includeResultMetadata) {
+    return callback(null, null);
+  }
+
+  const model = this.model;
+  const userProvidedFields = this._userProvidedFields || {};
+  // `populate`, `lean`
+  const mongooseOptions = this._mongooseOptions;
+
+  const options = this.options;
+  if (!options.lean && mongooseOptions.lean) {
+    options.lean = mongooseOptions.lean;
+  }
+
+  if (options.explain) {
+    return callback(null, doc);
+  }
+
+  if (!mongooseOptions.populate) {
+    const versionKey = this.schema.options.versionKey;
+    if (mongooseOptions.lean && mongooseOptions.lean.versionKey === false && versionKey) {
+      if (versionKey in doc) {
+        delete doc[versionKey];
+      }
+    }
+    return mongooseOptions.lean ?
+      _completeOneLean(model.schema, doc, null, res, options, callback) :
+      completeOne(model, doc, res, options, projection, userProvidedFields,
+        null, callback);
+  }
+
+  const pop = helpers.preparePopulationOptionsMQ(this, this._mongooseOptions);
+  if (mongooseOptions.lean) {
+    return model.populate(doc, pop).then(
+      doc => {
+        _completeOneLean(model.schema, doc, null, res, options, callback);
+      },
+      error => {
+        callback(error);
+      }
+    );
+  }
+
+  completeOne(model, doc, res, options, projection, userProvidedFields, [], (err, doc) => {
+    if (err != null) {
+      return callback(err);
+    }
+    model.populate(doc, pop).then(res => { callback(null, res); }, err => { callback(err); });
+  });
+};
+
+/**
+ * Given a model and an array of docs, hydrates all the docs to be instances
+ * of the model. Used to initialize docs returned from the db from `find()`
+ *
+ * @param {Array} docs
+ * @param {Object} fields the projection used, including `select` from schemas
+ * @param {Object} userProvidedFields the user-specified projection
+ * @param {Object} [opts]
+ * @param {Array} [opts.populated]
+ * @param {ClientSession} [opts.session]
+ * @api private
+ */
+
+Query.prototype._completeMany = async function _completeMany(docs, fields, userProvidedFields, opts) {
+  const model = this.model;
+  return Promise.all(docs.map(doc => new Promise((resolve, reject) => {
+    const rawDoc = doc;
+    doc = helpers.createModel(model, doc, fields, userProvidedFields);
+    if (opts.session != null) {
+      doc.$session(opts.session);
+    }
+    doc.$init(rawDoc, opts, (err) => {
+      if (err != null) {
+        return reject(err);
+      }
+      resolve(doc);
+    });
+  })));
+};
+
+/**
+ * Internal helper to execute a findOne() operation
+ *
+ * @see findOne https://www.mongodb.com/docs/manual/reference/method/db.collection.findOne/
+ * @api private
+ */
+
+Query.prototype._findOne = async function _findOne() {
+  this._applyTranslateAliases();
+  this._castConditions();
+
+  if (this.error()) {
+    const err = this.error();
+    throw err;
+  }
+
+  applyGlobalMaxTimeMS(this.options, this.model.db.options, this.model.base.options);
+  applyGlobalDiskUse(this.options, this.model.db.options, this.model.base.options);
+
+  const options = this._optionsForExec();
+
+  // don't pass in the conditions because we already merged them in
+  const doc = await this.mongooseCollection.findOne(this._conditions, options);
+  return new Promise((resolve, reject) => {
+    this._completeOne(doc, null, options.projection, (err, res) => {
+      if (err) {
+        return reject(err);
+      }
+      resolve(res);
+    });
+  });
+};
+
+/**
+ * Declares the query a findOne operation. When executed, the first found document is passed to the callback.
+ *
+ * The result of the query is a single document, or `null` if no document was found.
+ *
+ * * *Note:* `conditions` is optional, and if `conditions` is null or undefined,
+ * mongoose will send an empty `findOne` command to MongoDB, which will return
+ * an arbitrary document. If you're querying by `_id`, use `Model.findById()`
+ * instead.
+ *
+ * This function triggers the following middleware.
+ *
+ * - `findOne()`
+ *
+ * #### Example:
+ *
+ *     const query = Kitten.where({ color: 'white' });
+ *     const kitten = await query.findOne();
+ *
+ * @param {Object} [filter] mongodb selector
+ * @param {Object} [projection] optional fields to return
+ * @param {Object} [options] see [`setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions())
+ * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object.
+ * @return {Query} this
+ * @see findOne https://www.mongodb.com/docs/manual/reference/method/db.collection.findOne/
+ * @see Query.select https://mongoosejs.com/docs/api/query.html#Query.prototype.select()
+ * @api public
+ */
+
+Query.prototype.findOne = function(conditions, projection, options) {
+  if (typeof conditions === 'function' ||
+      typeof projection === 'function' ||
+      typeof options === 'function' ||
+      typeof arguments[3] === 'function') {
+    throw new MongooseError('Query.prototype.findOne() no longer accepts a callback');
+  }
+
+  this.op = 'findOne';
+  this._validateOp();
+
+  if (options) {
+    this.setOptions(options);
+  }
+
+  if (projection) {
+    this.select(projection);
+  }
+
+  if (mquery.canMerge(conditions)) {
+    this.merge(conditions);
+
+    prepareDiscriminatorCriteria(this);
+  } else if (conditions != null) {
+    this.error(new ObjectParameterError(conditions, 'filter', 'findOne'));
+  }
+
+  return this;
+};
+
+
+/**
+ * Execute a countDocuments query
+ *
+ * @see countDocuments https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#countDocuments
+ * @api private
+ */
+
+Query.prototype._countDocuments = async function _countDocuments() {
+  this._applyTranslateAliases();
+
+  try {
+    this.cast(this.model);
+  } catch (err) {
+    this.error(err);
+  }
+
+  if (this.error()) {
+    throw this.error();
+  }
+
+  applyGlobalMaxTimeMS(this.options, this.model.db.options, this.model.base.options);
+  applyGlobalDiskUse(this.options, this.model.db.options, this.model.base.options);
+
+  const options = this._optionsForExec();
+
+  const conds = this._conditions;
+
+  return this.mongooseCollection.countDocuments(conds, options);
+};
+
+/*!
+ * If `translateAliases` option is set, call `Model.translateAliases()`
+ * on the following query properties: filter, projection, update, distinct.
+ */
+
+Query.prototype._applyTranslateAliases = function _applyTranslateAliases() {
+  let applyTranslateAliases = false;
+  if ('translateAliases' in this._mongooseOptions) {
+    applyTranslateAliases = this._mongooseOptions.translateAliases;
+  } else if (this.model?.schema?._userProvidedOptions?.translateAliases != null) {
+    applyTranslateAliases = this.model.schema._userProvidedOptions.translateAliases;
+  } else if (this.model?.base?.options?.translateAliases != null) {
+    applyTranslateAliases = this.model.base.options.translateAliases;
+  }
+  if (!applyTranslateAliases) {
+    return;
+  }
+
+  if (this.model?.schema?.aliases && Object.keys(this.model.schema.aliases).length > 0) {
+    this.model.translateAliases(this._conditions, true);
+    this.model.translateAliases(this._fields, true);
+    this.model.translateAliases(this._update, true);
+    if (this._distinct != null && this.model.schema.aliases[this._distinct] != null) {
+      this._distinct = this.model.schema.aliases[this._distinct];
+    }
+  }
+};
+
+/**
+ * Execute a estimatedDocumentCount() query
+ *
+ * @see estimatedDocumentCount https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#estimatedDocumentCount
+ * @api private
+ */
+
+Query.prototype._estimatedDocumentCount = async function _estimatedDocumentCount() {
+  if (this.error()) {
+    throw this.error();
+  }
+
+  const options = this._optionsForExec();
+
+  return this.mongooseCollection.estimatedDocumentCount(options);
+};
+
+/**
+ * Specifies this query as a `estimatedDocumentCount()` query. Faster than
+ * using `countDocuments()` for large collections because
+ * `estimatedDocumentCount()` uses collection metadata rather than scanning
+ * the entire collection.
+ *
+ * `estimatedDocumentCount()` does **not** accept a filter. `Model.find({ foo: bar }).estimatedDocumentCount()`
+ * is equivalent to `Model.find().estimatedDocumentCount()`
+ *
+ * This function triggers the following middleware.
+ *
+ * - `estimatedDocumentCount()`
+ *
+ * #### Example:
+ *
+ *     await Model.find().estimatedDocumentCount();
+ *
+ * @param {Object} [options] passed transparently to the [MongoDB driver](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/EstimatedDocumentCountOptions.html)
+ * @return {Query} this
+ * @see estimatedDocumentCount https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#estimatedDocumentCount
+ * @api public
+ */
+
+Query.prototype.estimatedDocumentCount = function(options) {
+  if (typeof options === 'function' ||
+      typeof arguments[1] === 'function') {
+    throw new MongooseError('Query.prototype.estimatedDocumentCount() no longer accepts a callback');
+  }
+
+  this.op = 'estimatedDocumentCount';
+  this._validateOp();
+
+  if (options != null) {
+    this.setOptions(options);
+  }
+
+  return this;
+};
+
+/**
+ * Specifies this query as a `countDocuments()` query. Behaves like `count()`,
+ * except it always does a full collection scan when passed an empty filter `{}`.
+ *
+ * There are also minor differences in how `countDocuments()` handles
+ * [`$where` and a couple geospatial operators](https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#countDocuments).
+ * versus `count()`.
+ *
+ * This function triggers the following middleware.
+ *
+ * - `countDocuments()`
+ *
+ * #### Example:
+ *
+ *     const countQuery = model.where({ 'color': 'black' }).countDocuments();
+ *
+ *     query.countDocuments({ color: 'black' }).count().exec();
+ *
+ *     await query.countDocuments({ color: 'black' });
+ *
+ *     query.where('color', 'black').countDocuments().exec();
+ *
+ * The `countDocuments()` function is similar to `count()`, but there are a
+ * [few operators that `countDocuments()` does not support](https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#countDocuments).
+ * Below are the operators that `count()` supports but `countDocuments()` does not,
+ * and the suggested replacement:
+ *
+ * - `$where`: [`$expr`](https://www.mongodb.com/docs/manual/reference/operator/query/expr/)
+ * - `$near`: [`$geoWithin`](https://www.mongodb.com/docs/manual/reference/operator/query/geoWithin/) with [`$center`](https://www.mongodb.com/docs/manual/reference/operator/query/center/#op._S_center)
+ * - `$nearSphere`: [`$geoWithin`](https://www.mongodb.com/docs/manual/reference/operator/query/geoWithin/) with [`$centerSphere`](https://www.mongodb.com/docs/manual/reference/operator/query/centerSphere/#op._S_centerSphere)
+ *
+ * @param {Object} [filter] mongodb selector
+ * @param {Object} [options]
+ * @return {Query} this
+ * @see countDocuments https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#countDocuments
+ * @api public
+ */
+
+Query.prototype.countDocuments = function(conditions, options) {
+  if (typeof conditions === 'function' ||
+      typeof options === 'function' ||
+      typeof arguments[2] === 'function') {
+    throw new MongooseError('Query.prototype.countDocuments() no longer accepts a callback');
+  }
+
+  this.op = 'countDocuments';
+  this._validateOp();
+
+  if (mquery.canMerge(conditions)) {
+    this.merge(conditions);
+  }
+
+  if (options != null) {
+    this.setOptions(options);
+  }
+
+  return this;
+};
+
+/**
+ * Execute a `distinct()` query
+ *
+ * @see distinct https://www.mongodb.com/docs/manual/reference/method/db.collection.distinct/
+ * @api private
+ */
+
+Query.prototype.__distinct = async function __distinct() {
+  this._applyTranslateAliases();
+  this._castConditions();
+
+  if (this.error()) {
+    throw this.error();
+  }
+
+  applyGlobalMaxTimeMS(this.options, this.model.db.options, this.model.base.options);
+  applyGlobalDiskUse(this.options, this.model.db.options, this.model.base.options);
+
+  const options = this._optionsForExec();
+
+  return this.mongooseCollection.
+    distinct(this._distinct, this._conditions, options);
+};
+
+/**
+ * Declares or executes a distinct() operation.
+ *
+ * This function does not trigger any middleware.
+ *
+ * #### Example:
+ *
+ *     distinct(field, conditions, options)
+ *     distinct(field, conditions)
+ *     distinct(field)
+ *     distinct()
+ *
+ * @param {String} [field]
+ * @param {Object|Query} [filter]
+ * @param {Object} [options]
+ * @return {Query} this
+ * @see distinct https://www.mongodb.com/docs/manual/reference/method/db.collection.distinct/
+ * @api public
+ */
+
+Query.prototype.distinct = function(field, conditions, options) {
+  if (typeof field === 'function' ||
+      typeof conditions === 'function' ||
+      typeof options === 'function' ||
+      typeof arguments[3] === 'function') {
+    throw new MongooseError('Query.prototype.distinct() no longer accepts a callback');
+  }
+
+  this.op = 'distinct';
+  this._validateOp();
+
+  if (mquery.canMerge(conditions)) {
+    this.merge(conditions);
+
+    prepareDiscriminatorCriteria(this);
+  } else if (conditions != null) {
+    this.error(new ObjectParameterError(conditions, 'filter', 'distinct'));
+  }
+
+  if (field != null) {
+    this._distinct = field;
+  }
+
+  if (options != null) {
+    this.setOptions(options);
+  }
+
+  return this;
+};
+
+/**
+ * Sets the sort order
+ *
+ * If an object is passed, values allowed are `asc`, `desc`, `ascending`, `descending`, `1`, and `-1`.
+ *
+ * If a string is passed, it must be a space delimited list of path names. The
+ * sort order of each path is ascending unless the path name is prefixed with `-`
+ * which will be treated as descending.
+ *
+ * #### Example:
+ *
+ *     // sort by "field" ascending and "test" descending
+ *     query.sort({ field: 'asc', test: -1 });
+ *
+ *     // equivalent
+ *     query.sort('field -test');
+ *
+ *     // also possible is to use a array with array key-value pairs
+ *     query.sort([['field', 'asc']]);
+ *
+ * #### Note:
+ *
+ * Cannot be used with `distinct()`
+ *
+ * @param {Object|String|Array<Array<(string | number)>>} arg
+ * @param {Object} [options]
+ * @param {Boolean} [options.override=false] If true, replace existing sort options with `arg`
+ * @return {Query} this
+ * @see cursor.sort https://www.mongodb.com/docs/manual/reference/method/cursor.sort/
+ * @api public
+ */
+
+Query.prototype.sort = function(arg, options) {
+  if (arguments.length > 2) {
+    throw new Error('sort() takes at most 2 arguments');
+  }
+  if (options != null && typeof options !== 'object') {
+    throw new Error('sort() options argument must be an object or nullish');
+  }
+
+  if (this.options.sort == null) {
+    this.options.sort = {};
+  }
+  if (options && options.override) {
+    this.options.sort = {};
+  }
+  const sort = this.options.sort;
+  if (typeof arg === 'string') {
+    const properties = arg.indexOf(' ') === -1 ? [arg] : arg.split(' ');
+    for (let property of properties) {
+      const ascend = '-' == property[0] ? -1 : 1;
+      if (ascend === -1) {
+        property = property.slice(1);
+      }
+      if (specialProperties.has(property)) {
+        continue;
+      }
+      sort[property] = ascend;
+    }
+  } else if (Array.isArray(arg)) {
+    for (const pair of arg) {
+      if (!Array.isArray(pair)) {
+        throw new TypeError('Invalid sort() argument, must be array of arrays');
+      }
+      const key = '' + pair[0];
+      if (specialProperties.has(key)) {
+        continue;
+      }
+      sort[key] = _handleSortValue(pair[1], key);
+    }
+  } else if (typeof arg === 'object' && arg != null && !(arg instanceof Map)) {
+    for (const key of Object.keys(arg)) {
+      if (specialProperties.has(key)) {
+        continue;
+      }
+      sort[key] = _handleSortValue(arg[key], key);
+    }
+  } else if (arg instanceof Map) {
+    for (let key of arg.keys()) {
+      key = '' + key;
+      if (specialProperties.has(key)) {
+        continue;
+      }
+      sort[key] = _handleSortValue(arg.get(key), key);
+    }
+  } else if (arg != null) {
+    throw new TypeError('Invalid sort() argument. Must be a string, object, array, or map.');
+  }
+
+  return this;
+};
+
+/*!
+ * Convert sort values
+ */
+
+function _handleSortValue(val, key) {
+  if (val === 1 || val === 'asc' || val === 'ascending') {
+    return 1;
+  }
+  if (val === -1 || val === 'desc' || val === 'descending') {
+    return -1;
+  }
+  if (val?.$meta != null) {
+    return { $meta: val.$meta };
+  }
+  throw new TypeError('Invalid sort value: { ' + key + ': ' + val + ' }');
+}
+
+/**
+ * Declare and/or execute this query as a `deleteOne()` operation. Works like
+ * remove, except it deletes at most one document regardless of the `single`
+ * option.
+ *
+ * This function triggers `deleteOne` middleware.
+ *
+ * #### Example:
+ *
+ *     await Character.deleteOne({ name: 'Eddard Stark' });
+ *
+ * This function calls the MongoDB driver's [`Collection#deleteOne()` function](https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#deleteOne).
+ * The returned [promise](https://mongoosejs.com/docs/queries.html) resolves to an
+ * object that contains 3 properties:
+ *
+ * - `ok`: `1` if no errors occurred
+ * - `deletedCount`: the number of documents deleted
+ * - `n`: the number of documents deleted. Equal to `deletedCount`.
+ *
+ * #### Example:
+ *
+ *     const res = await Character.deleteOne({ name: 'Eddard Stark' });
+ *     // `1` if MongoDB deleted a doc, `0` if no docs matched the filter `{ name: ... }`
+ *     res.deletedCount;
+ *
+ * @param {Object|Query} [filter] mongodb selector
+ * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions())
+ * @return {Query} this
+ * @see DeleteResult https://mongodb.github.io/node-mongodb-native/4.9/interfaces/DeleteResult.html
+ * @see deleteOne https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#deleteOne
+ * @api public
+ */
+
+Query.prototype.deleteOne = function deleteOne(filter, options) {
+  if (typeof filter === 'function' || typeof options === 'function' || typeof arguments[2] === 'function') {
+    throw new MongooseError('Query.prototype.deleteOne() no longer accepts a callback');
+  }
+  this.op = 'deleteOne';
+  this.setOptions(options);
+
+  if (mquery.canMerge(filter)) {
+    this.merge(filter);
+
+    prepareDiscriminatorCriteria(this);
+  } else if (filter != null) {
+    this.error(new ObjectParameterError(filter, 'filter', 'deleteOne'));
+  }
+
+  return this;
+};
+
+/**
+ * Internal thunk for `deleteOne()`
+ *
+ * @method _deleteOne
+ * @instance
+ * @memberOf Query
+ * @api private
+ */
+
+Query.prototype._deleteOne = async function _deleteOne() {
+  this._applyTranslateAliases();
+  this._castConditions();
+
+  if (this.error() != null) {
+    throw this.error();
+  }
+
+  const options = this._optionsForExec();
+
+  return this.mongooseCollection.deleteOne(this._conditions, options);
+};
+
+/**
+ * Declare and/or execute this query as a `deleteMany()` operation. Works like
+ * remove, except it deletes _every_ document that matches `filter` in the
+ * collection, regardless of the value of `single`.
+ *
+ * This function triggers `deleteMany` middleware.
+ *
+ * #### Example:
+ *
+ *     await Character.deleteMany({ name: /Stark/, age: { $gte: 18 } });
+ *
+ * This function calls the MongoDB driver's [`Collection#deleteMany()` function](https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#deleteMany).
+ * The returned [promise](https://mongoosejs.com/docs/queries.html) resolves to an
+ * object that contains 3 properties:
+ *
+ * - `ok`: `1` if no errors occurred
+ * - `deletedCount`: the number of documents deleted
+ * - `n`: the number of documents deleted. Equal to `deletedCount`.
+ *
+ * #### Example:
+ *
+ *     const res = await Character.deleteMany({ name: /Stark/, age: { $gte: 18 } });
+ *     // `0` if no docs matched the filter, number of docs deleted otherwise
+ *     res.deletedCount;
+ *
+ * @param {Object|Query} [filter] mongodb selector
+ * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions())
+ * @return {Query} this
+ * @see DeleteResult https://mongodb.github.io/node-mongodb-native/4.9/interfaces/DeleteResult.html
+ * @see deleteMany https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#deleteMany
+ * @api public
+ */
+
+Query.prototype.deleteMany = function(filter, options) {
+  if (typeof filter === 'function' || typeof options === 'function' || typeof arguments[2] === 'function') {
+    throw new MongooseError('Query.prototype.deleteMany() no longer accepts a callback');
+  }
+  this.setOptions(options);
+  this.op = 'deleteMany';
+
+  if (mquery.canMerge(filter)) {
+    this.merge(filter);
+
+    prepareDiscriminatorCriteria(this);
+  } else if (filter != null) {
+    this.error(new ObjectParameterError(filter, 'filter', 'deleteMany'));
+  }
+
+  return this;
+};
+
+/**
+ * Execute a `deleteMany()` query
+ *
+ * @method _deleteMany
+ * @instance
+ * @memberOf Query
+ * @api private
+ */
+
+Query.prototype._deleteMany = async function _deleteMany() {
+  this._applyTranslateAliases();
+  this._castConditions();
+
+  if (this.error() != null) {
+    throw this.error();
+  }
+
+  const options = this._optionsForExec();
+
+  return this.mongooseCollection.deleteMany(this._conditions, options);
+};
+
+/**
+ * hydrates a document
+ *
+ * @param {Model} model
+ * @param {Document} doc
+ * @param {Object} res 3rd parameter to callback
+ * @param {Object} fields
+ * @param {Query} self
+ * @param {Array} [pop] array of paths used in population
+ * @param {Function} callback
+ * @api private
+ */
+
+function completeOne(model, doc, res, options, fields, userProvidedFields, pop, callback) {
+  if (options.includeResultMetadata && doc == null) {
+    _init(null);
+    return null;
+  }
+
+  helpers.createModelAndInit(model, doc, fields, userProvidedFields, options, pop, _init);
+
+  function _init(err, casted) {
+    if (err) {
+      return callback(err);
+    }
+
+
+    if (options.includeResultMetadata) {
+      if (doc && casted) {
+        if (options.session != null) {
+          casted.$session(options.session);
+        }
+        res.value = casted;
+      } else {
+        res.value = null;
+      }
+      return callback(null, res);
+    }
+    if (options.session != null) {
+      casted.$session(options.session);
+    }
+    callback(null, casted);
+  }
+}
+
+/**
+ * If the model is a discriminator type and not root, then add the key & value to the criteria.
+ * @param {Query} query
+ * @api private
+ */
+
+function prepareDiscriminatorCriteria(query) {
+  if (!query || !query.model || !query.model.schema) {
+    return;
+  }
+
+  const schema = query.model.schema;
+
+  if (schema && schema.discriminatorMapping && !schema.discriminatorMapping.isRoot) {
+    query._conditions[schema.discriminatorMapping.key] = schema.discriminatorMapping.value;
+  }
+}
+
+/**
+ * Issues a mongodb `findOneAndUpdate()` command.
+ *
+ * Finds a matching document, updates it according to the `update` arg, passing any `options`, and returns the found
+ * document (if any).
+ *
+ * This function triggers the following middleware.
+ *
+ * - `findOneAndUpdate()`
+ *
+ * #### Available options
+ *
+ * - `new`: bool - if true, return the modified document rather than the original. defaults to false (changed in 4.0)
+ * - `upsert`: bool - creates the object if it doesn't exist. defaults to false.
+ * - `fields`: {Object|String} - Field selection. Equivalent to `.select(fields).findOneAndUpdate()`
+ * - `sort`: if multiple docs are found by the conditions, sets the sort order to choose which doc to update
+ * - `maxTimeMS`: puts a time limit on the query - requires mongodb >= 2.6.0
+ * - `runValidators`: if true, runs [update validators](https://mongoosejs.com/docs/validation.html#update-validators) on this command. Update validators validate the update operation against the model's schema.
+ * - `setDefaultsOnInsert`: `true` by default. If `setDefaultsOnInsert` and `upsert` are true, mongoose will apply the [defaults](https://mongoosejs.com/docs/defaults.html) specified in the model's schema if a new document is created.
+ *
+ * #### Example:
+ *
+ *     query.findOneAndUpdate(conditions, update, options)  // returns Query
+ *     query.findOneAndUpdate(conditions, update)           // returns Query
+ *     query.findOneAndUpdate(update)                       // returns Query
+ *     query.findOneAndUpdate()                             // returns Query
+ *
+ * @method findOneAndUpdate
+ * @memberOf Query
+ * @instance
+ * @param {Object|Query} [filter]
+ * @param {Object} [doc]
+ * @param {Object} [options]
+ * @param {Boolean} [options.includeResultMetadata] if true, returns the full [ModifyResult from the MongoDB driver](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/ModifyResult.html) rather than just the document
+ * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict)
+ * @param {ClientSession} [options.session=null] The session associated with this query. See [transactions docs](https://mongoosejs.com/docs/transactions.html).
+ * @param {Boolean} [options.multipleCastError] by default, mongoose only returns the first error that occurred in casting the query. Turn on this option to aggregate all the cast errors.
+ * @param {Boolean} [options.new=false] By default, `findOneAndUpdate()` returns the document as it was **before** `update` was applied. If you set `new: true`, `findOneAndUpdate()` will instead give you the object after `update` was applied.
+ * @param {Object} [options.lean] if truthy, mongoose will return the document as a plain JavaScript object rather than a mongoose document. See [`Query.lean()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.lean()) and [the Mongoose lean tutorial](https://mongoosejs.com/docs/tutorials/lean.html).
+ * @param {ClientSession} [options.session=null] The session associated with this query. See [transactions docs](https://mongoosejs.com/docs/transactions.html).
+ * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict)
+ * @param {Boolean} [options.timestamps=null] If set to `false` and [schema-level timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this update. Note that this allows you to overwrite timestamps. Does nothing if schema-level timestamps are not set.
+ * @param {Boolean} [options.returnOriginal=null] An alias for the `new` option. `returnOriginal: false` is equivalent to `new: true`.
+ * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object.
+ * @param {Boolean} [options.overwriteDiscriminatorKey=false] Mongoose removes discriminator key updates from `update` by default, set `overwriteDiscriminatorKey` to `true` to allow updating the discriminator key
+ * @param {Boolean} [options.overwriteImmutable=false] Mongoose removes updated immutable properties from `update` by default (excluding $setOnInsert). Set `overwriteImmutable` to `true` to allow updating immutable properties using other update operators.
+ * @see Tutorial https://mongoosejs.com/docs/tutorials/findoneandupdate.html
+ * @see findAndModify command https://www.mongodb.com/docs/manual/reference/command/findAndModify/
+ * @see ModifyResult https://mongodb.github.io/node-mongodb-native/4.9/interfaces/ModifyResult.html
+ * @see findOneAndUpdate https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#findOneAndUpdate
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.findOneAndUpdate = function(filter, doc, options) {
+  if (typeof filter === 'function' ||
+      typeof doc === 'function' ||
+      typeof options === 'function' ||
+      typeof arguments[3] === 'function') {
+    throw new MongooseError('Query.prototype.findOneAndUpdate() no longer accepts a callback');
+  }
+
+  this.op = 'findOneAndUpdate';
+  this._validateOp();
+  this._validate();
+
+  switch (arguments.length) {
+    case 2:
+      options = undefined;
+      break;
+    case 1:
+      doc = filter;
+      filter = options = undefined;
+      break;
+  }
+
+  if (mquery.canMerge(filter)) {
+    this.merge(filter);
+  } else if (filter != null) {
+    this.error(
+      new ObjectParameterError(filter, 'filter', 'findOneAndUpdate')
+    );
+  }
+
+  // apply doc
+  if (doc) {
+    this._mergeUpdate(doc);
+  }
+
+  options = options ? clone(options) : {};
+
+  if (options.projection) {
+    this.select(options.projection);
+    delete options.projection;
+  }
+  if (options.fields) {
+    this.select(options.fields);
+    delete options.fields;
+  }
+
+  const returnOriginal = this &&
+    this.model &&
+    this.model.base &&
+    this.model.base.options &&
+    this.model.base.options.returnOriginal;
+  if (options.new == null && options.returnDocument == null && options.returnOriginal == null && returnOriginal != null) {
+    options.returnOriginal = returnOriginal;
+  }
+
+  this.setOptions(options);
+
+  return this;
+};
+
+/**
+ * Execute a findOneAndUpdate operation
+ *
+ * @method _findOneAndUpdate
+ * @memberOf Query
+ * @api private
+ */
+
+Query.prototype._findOneAndUpdate = async function _findOneAndUpdate() {
+  this._applyTranslateAliases();
+  this._castConditions();
+
+  _castArrayFilters(this);
+
+  if (this.error()) {
+    throw this.error();
+  }
+
+  applyGlobalMaxTimeMS(this.options, this.model.db.options, this.model.base.options);
+  applyGlobalDiskUse(this.options, this.model.db.options, this.model.base.options);
+
+  if ('strict' in this.options) {
+    this._mongooseOptions.strict = this.options.strict;
+  }
+  const options = this._optionsForExec(this.model);
+  convertNewToReturnDocument(options);
+
+  this._update = this._castUpdate(this._update);
+
+  const _opts = Object.assign({}, options, {
+    setDefaultsOnInsert: this._mongooseOptions.setDefaultsOnInsert
+  });
+  this._update = setDefaultsOnInsert(this._conditions, this.model.schema,
+    this._update, _opts);
+
+  if (!this._update || Object.keys(this._update).length === 0) {
+    if (options.upsert) {
+      // still need to do the upsert to empty doc
+      const $set = clone(this._update);
+      delete $set._id;
+      this._update = { $set };
+    } else {
+      this._executionStack = null;
+      const res = await this._findOne();
+      return res;
+    }
+  } else if (this._update instanceof Error) {
+    throw this._update;
+  } else {
+    // In order to make MongoDB 2.6 happy (see
+    // https://jira.mongodb.org/browse/SERVER-12266 and related issues)
+    // if we have an actual update document but $set is empty, junk the $set.
+    if (this._update.$set && Object.keys(this._update.$set).length === 0) {
+      delete this._update.$set;
+    }
+  }
+
+  const runValidators = _getOption(this, 'runValidators', false);
+  if (runValidators) {
+    await this.validate(this._update, options, false);
+  }
+
+  if (this._update.toBSON) {
+    this._update = this._update.toBSON();
+  }
+
+  let res = await this.mongooseCollection.findOneAndUpdate(this._conditions, this._update, options);
+  for (const fn of this._transforms) {
+    res = fn(res);
+  }
+  const doc = !options.includeResultMetadata ? res : res.value;
+
+  return new Promise((resolve, reject) => {
+    this._completeOne(doc, res, options.projection, (err, res) => {
+      if (err) {
+        return reject(err);
+      }
+      resolve(res);
+    });
+  });
+};
+
+/**
+ * Issues a MongoDB [findOneAndDelete](https://www.mongodb.com/docs/manual/reference/method/db.collection.findOneAndDelete/) command.
+ *
+ * Finds a matching document, removes it, and returns the found document (if any).
+ *
+ * This function triggers the following middleware.
+ *
+ * - `findOneAndDelete()`
+ *
+ * #### Available options
+ *
+ * - `sort`: if multiple docs are found by the conditions, sets the sort order to choose which doc to update
+ * - `maxTimeMS`: puts a time limit on the query - requires mongodb >= 2.6.0
+ *
+ * #### Example:
+ *
+ *     A.where().findOneAndDelete(conditions, options)  // return Query
+ *     A.where().findOneAndDelete(conditions) // returns Query
+ *     A.where().findOneAndDelete()           // returns Query
+ *
+ * @method findOneAndDelete
+ * @memberOf Query
+ * @param {Object} [filter]
+ * @param {Object} [options]
+ * @param {Boolean} [options.includeResultMetadata] if true, returns the full [ModifyResult from the MongoDB driver](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/ModifyResult.html) rather than just the document
+ * @param {ClientSession} [options.session=null] The session associated with this query. See [transactions docs](https://mongoosejs.com/docs/transactions.html).
+ * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict)
+ * @return {Query} this
+ * @see findAndModify command https://www.mongodb.com/docs/manual/reference/command/findAndModify/
+ * @api public
+ */
+
+Query.prototype.findOneAndDelete = function(filter, options) {
+  if (typeof filter === 'function' ||
+      typeof options === 'function' ||
+      typeof arguments[2] === 'function') {
+    throw new MongooseError('Query.prototype.findOneAndDelete() no longer accepts a callback');
+  }
+
+  this.op = 'findOneAndDelete';
+  this._validateOp();
+  this._validate();
+
+  if (mquery.canMerge(filter)) {
+    this.merge(filter);
+  }
+
+  options && this.setOptions(options);
+
+  return this;
+};
+
+/**
+ * Execute a `findOneAndDelete()` query
+ *
+ * @return {Query} this
+ * @method _findOneAndDelete
+ * @memberOf Query
+ * @api private
+ */
+Query.prototype._findOneAndDelete = async function _findOneAndDelete() {
+  this._applyTranslateAliases();
+  this._castConditions();
+
+  if (this.error() != null) {
+    throw this.error();
+  }
+
+  const includeResultMetadata = this.options.includeResultMetadata;
+
+  const filter = this._conditions;
+  const options = this._optionsForExec(this.model);
+
+  let res = await this.mongooseCollection.findOneAndDelete(filter, options);
+  for (const fn of this._transforms) {
+    res = fn(res);
+  }
+  const doc = !includeResultMetadata ? res : res.value;
+
+  return new Promise((resolve, reject) => {
+    this._completeOne(doc, res, options.projection, (err, res) => {
+      if (err) {
+        return reject(err);
+      }
+      resolve(res);
+    });
+  });
+};
+
+/**
+ * Issues a MongoDB [findOneAndReplace](https://www.mongodb.com/docs/manual/reference/method/db.collection.findOneAndReplace/) command.
+ *
+ * Finds a matching document, removes it, and returns the found document (if any).
+ *
+ * This function triggers the following middleware.
+ *
+ * - `findOneAndReplace()`
+ *
+ * #### Available options
+ *
+ * - `sort`: if multiple docs are found by the conditions, sets the sort order to choose which doc to update
+ * - `maxTimeMS`: puts a time limit on the query - requires mongodb >= 2.6.0
+ * - `includeResultMetadata`: if true, returns the full [ModifyResult from the MongoDB driver](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/ModifyResult.html) rather than just the document
+ *
+ * #### Example:
+ *
+ *     A.where().findOneAndReplace(filter, replacement, options); // return Query
+ *     A.where().findOneAndReplace(filter); // returns Query
+ *     A.where().findOneAndReplace(); // returns Query
+ *
+ * @method findOneAndReplace
+ * @memberOf Query
+ * @param {Object} [filter]
+ * @param {Object} [replacement]
+ * @param {Object} [options]
+ * @param {Boolean} [options.includeResultMetadata] if true, returns the full [ModifyResult from the MongoDB driver](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/ModifyResult.html) rather than just the document
+ * @param {ClientSession} [options.session=null] The session associated with this query. See [transactions docs](https://mongoosejs.com/docs/transactions.html).
+ * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict)
+ * @param {Boolean} [options.new=false] By default, `findOneAndUpdate()` returns the document as it was **before** `update` was applied. If you set `new: true`, `findOneAndUpdate()` will instead give you the object after `update` was applied.
+ * @param {Object} [options.lean] if truthy, mongoose will return the document as a plain JavaScript object rather than a mongoose document. See [`Query.lean()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.lean()) and [the Mongoose lean tutorial](https://mongoosejs.com/docs/tutorials/lean.html).
+ * @param {ClientSession} [options.session=null] The session associated with this query. See [transactions docs](https://mongoosejs.com/docs/transactions.html).
+ * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict)
+ * @param {Boolean} [options.timestamps=null] If set to `false` and [schema-level timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this update. Note that this allows you to overwrite timestamps. Does nothing if schema-level timestamps are not set.
+ * @param {Boolean} [options.returnOriginal=null] An alias for the `new` option. `returnOriginal: false` is equivalent to `new: true`.
+ * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object.
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.findOneAndReplace = function(filter, replacement, options) {
+  if (typeof filter === 'function' ||
+      typeof replacement === 'function' ||
+      typeof options === 'function' ||
+      typeof arguments[4] === 'function') {
+    throw new MongooseError('Query.prototype.findOneAndReplace() no longer accepts a callback');
+  }
+
+  this.op = 'findOneAndReplace';
+  this._validateOp();
+  this._validate();
+
+  if (mquery.canMerge(filter)) {
+    this.merge(filter);
+  } else if (filter != null) {
+    this.error(
+      new ObjectParameterError(filter, 'filter', 'findOneAndReplace')
+    );
+  }
+
+  if (replacement != null) {
+    this._mergeUpdate(replacement);
+  }
+
+  options = options || {};
+
+  const returnOriginal = this &&
+  this.model &&
+  this.model.base &&
+  this.model.base.options &&
+  this.model.base.options.returnOriginal;
+  if (options.new == null && options.returnDocument == null && options.returnOriginal == null && returnOriginal != null) {
+    options.returnOriginal = returnOriginal;
+  }
+  this.setOptions(options);
+
+  return this;
+};
+
+/**
+ * Execute a findOneAndReplace() query
+ *
+ * @return {Query} this
+ * @method _findOneAndReplace
+ * @instance
+ * @memberOf Query
+ * @api private
+ */
+Query.prototype._findOneAndReplace = async function _findOneAndReplace() {
+  this._applyTranslateAliases();
+  this._castConditions();
+  if (this.error() != null) {
+    throw this.error();
+  }
+
+  if ('strict' in this.options) {
+    this._mongooseOptions.strict = this.options.strict;
+    delete this.options.strict;
+  }
+
+  const filter = this._conditions;
+  const options = this._optionsForExec();
+  convertNewToReturnDocument(options);
+
+  const includeResultMetadata = this.options.includeResultMetadata;
+
+  const modelOpts = { skipId: true };
+  if ('strict' in this._mongooseOptions) {
+    modelOpts.strict = this._mongooseOptions.strict;
+  }
+
+  const runValidators = _getOption(this, 'runValidators', false);
+
+  try {
+    const update = new this.model(this._update, null, modelOpts);
+    if (runValidators) {
+      await update.validate();
+    } else if (update.$__.validationError) {
+      throw update.$__.validationError;
+    }
+    this._update = update.toBSON();
+  } catch (err) {
+    if (err instanceof ValidationError) {
+      throw err;
+    }
+    const validationError = new ValidationError();
+    validationError.errors[err.path] = err;
+    throw validationError;
+  }
+
+  let res = await this.mongooseCollection.findOneAndReplace(filter, this._update, options);
+
+  for (const fn of this._transforms) {
+    res = fn(res);
+  }
+
+  const doc = !includeResultMetadata ? res : res.value;
+  return new Promise((resolve, reject) => {
+    this._completeOne(doc, res, options.projection, (err, res) => {
+      if (err) {
+        return reject(err);
+      }
+      resolve(res);
+    });
+  });
+};
+
+/**
+ * Support the `new` option as an alternative to `returnOriginal` for backwards
+ * compat.
+ * @api private
+ */
+
+function convertNewToReturnDocument(options) {
+  if ('new' in options) {
+    options.returnDocument = options['new'] ? 'after' : 'before';
+    delete options['new'];
+  }
+  if ('returnOriginal' in options) {
+    options.returnDocument = options['returnOriginal'] ? 'before' : 'after';
+    delete options['returnOriginal'];
+  }
+  // Temporary since driver 4.0.0-beta does not support `returnDocument`
+  if (typeof options.returnDocument === 'string') {
+    options.returnOriginal = options.returnDocument === 'before';
+  }
+}
+
+/**
+ * Get options from query opts, falling back to the base mongoose object.
+ * @param {Query} query
+ * @param {Object} option
+ * @param {Any} def
+ * @api private
+ */
+
+function _getOption(query, option, def) {
+  const opts = query._optionsForExec(query.model);
+
+  if (option in opts) {
+    return opts[option];
+  }
+  if (option in query.model.base.options) {
+    return query.model.base.options[option];
+  }
+  return def;
+}
+
+/*!
+ * ignore
+ */
+
+function _completeOneLean(schema, doc, path, res, opts, callback) {
+  if (opts.lean && typeof opts.lean.transform === 'function') {
+    opts.lean.transform(doc);
+
+    for (let i = 0; i < schema.childSchemas.length; i++) {
+      const childPath = path ? path + '.' + schema.childSchemas[i].model.path : schema.childSchemas[i].model.path;
+      const _schema = schema.childSchemas[i].schema;
+      const obj = mpath.get(childPath, doc);
+      if (obj == null) {
+        continue;
+      }
+      if (Array.isArray(obj)) {
+        for (let i = 0; i < obj.length; i++) {
+          opts.lean.transform(obj[i]);
+        }
+      } else {
+        opts.lean.transform(obj);
+      }
+      _completeOneLean(_schema, obj, childPath, res, opts);
+    }
+    if (callback) {
+      return callback(null, doc);
+    } else {
+      return;
+    }
+  }
+  if (opts.includeResultMetadata) {
+    return callback(null, res);
+  }
+  return callback(null, doc);
+}
+
+/*!
+ * ignore
+ */
+
+function _completeManyLean(schema, docs, path, opts) {
+  if (opts.lean && typeof opts.lean.transform === 'function') {
+    for (const doc of docs) {
+      opts.lean.transform(doc);
+    }
+
+    for (let i = 0; i < schema.childSchemas.length; i++) {
+      const childPath = path ? path + '.' + schema.childSchemas[i].model.path : schema.childSchemas[i].model.path;
+      const _schema = schema.childSchemas[i].schema;
+      let doc = mpath.get(childPath, docs);
+      if (doc == null) {
+        continue;
+      }
+      doc = doc.flat();
+      for (let i = 0; i < doc.length; i++) {
+        opts.lean.transform(doc[i]);
+      }
+      _completeManyLean(_schema, doc, childPath, opts);
+    }
+  }
+
+  return docs;
+}
+/**
+ * Override mquery.prototype._mergeUpdate to handle mongoose objects in
+ * updates.
+ *
+ * @param {Object} doc
+ * @method _mergeUpdate
+ * @memberOf Query
+ * @instance
+ * @api private
+ */
+
+Query.prototype._mergeUpdate = function(doc) {
+  if (!this._update) {
+    this._update = Array.isArray(doc) ? [] : {};
+  }
+
+  if (doc == null || (typeof doc === 'object' && Object.keys(doc).length === 0)) {
+    return;
+  }
+
+  if (doc instanceof Query) {
+    if (Array.isArray(this._update)) {
+      throw new Error('Cannot mix array and object updates');
+    }
+    if (doc._update) {
+      utils.mergeClone(this._update, doc._update);
+    }
+  } else if (Array.isArray(doc)) {
+    if (!Array.isArray(this._update)) {
+      throw new Error('Cannot mix array and object updates');
+    }
+    this._update = this._update.concat(doc);
+  } else {
+    if (Array.isArray(this._update)) {
+      throw new Error('Cannot mix array and object updates');
+    }
+    utils.mergeClone(this._update, doc);
+  }
+};
+
+/*!
+ * ignore
+ */
+
+async function _updateThunk(op) {
+  this._applyTranslateAliases();
+
+  this._castConditions();
+
+  _castArrayFilters(this);
+
+  if (this.error() != null) {
+    throw this.error();
+  }
+
+  const castedQuery = this._conditions;
+  const options = this._optionsForExec(this.model);
+
+  this._update = clone(this._update, options);
+  const isOverwriting = op === 'replaceOne';
+  if (isOverwriting) {
+    this._update = new this.model(this._update, null, true);
+  } else {
+    this._update = this._castUpdate(this._update);
+
+    if (this._update == null || Object.keys(this._update).length === 0) {
+      return { acknowledged: false };
+    }
+
+    const _opts = Object.assign({}, options, {
+      setDefaultsOnInsert: this._mongooseOptions.setDefaultsOnInsert
+    });
+    this._update = setDefaultsOnInsert(this._conditions, this.model.schema,
+      this._update, _opts);
+  }
+
+  if (Array.isArray(options.arrayFilters)) {
+    options.arrayFilters = removeUnusedArrayFilters(this._update, options.arrayFilters);
+  }
+
+  const runValidators = _getOption(this, 'runValidators', false);
+  if (runValidators) {
+    await this.validate(this._update, options, isOverwriting);
+  }
+
+  if (this._update.toBSON) {
+    this._update = this._update.toBSON();
+  }
+
+  return this.mongooseCollection[op](castedQuery, this._update, options);
+}
+
+/**
+ * Mongoose calls this function internally to validate the query if
+ * `runValidators` is set
+ *
+ * @param {Object} castedDoc the update, after casting
+ * @param {Object} options the options from `_optionsForExec()`
+ * @param {Boolean} isOverwriting
+ * @method validate
+ * @memberOf Query
+ * @instance
+ * @api private
+ */
+
+Query.prototype.validate = async function validate(castedDoc, options, isOverwriting) {
+  if (typeof arguments[3] === 'function') {
+    throw new MongooseError('Query.prototype.validate() no longer accepts a callback');
+  }
+
+  await _executePreHooks(this, 'validate');
+
+  if (isOverwriting) {
+    await castedDoc.$validate();
+  } else {
+    await new Promise((resolve, reject) => {
+      updateValidators(this, this.model.schema, castedDoc, options, (err) => {
+        if (err != null) {
+          return reject(err);
+        }
+        resolve();
+      });
+    });
+  }
+
+  await _executePostHooks(this, null, null, 'validate');
+};
+
+/**
+ * Execute an updateMany query
+ *
+ * @see Model.update https://mongoosejs.com/docs/api/model.html#Model.update()
+ * @method _updateMany
+ * @memberOf Query
+ * @instance
+ * @api private
+ */
+Query.prototype._updateMany = async function _updateMany() {
+  return _updateThunk.call(this, 'updateMany');
+};
+
+/**
+ * Execute an updateOne query
+ *
+ * @see Model.update https://mongoosejs.com/docs/api/model.html#Model.update()
+ * @method _updateOne
+ * @memberOf Query
+ * @instance
+ * @api private
+ */
+Query.prototype._updateOne = async function _updateOne() {
+  return _updateThunk.call(this, 'updateOne');
+};
+
+/**
+ * Execute a replaceOne query
+ *
+ * @see Model.replaceOne https://mongoosejs.com/docs/api/model.html#Model.replaceOne()
+ * @method _replaceOne
+ * @memberOf Query
+ * @instance
+ * @api private
+ */
+Query.prototype._replaceOne = async function _replaceOne() {
+  return _updateThunk.call(this, 'replaceOne');
+};
+
+/**
+ * Declare and/or execute this query as an updateMany() operation.
+ * MongoDB will update _all_ documents that match `filter` (as opposed to just the first one).
+ *
+ * **Note** updateMany will _not_ fire update middleware. Use `pre('updateMany')`
+ * and `post('updateMany')` instead.
+ *
+ * #### Example:
+ *
+ *     const res = await Person.updateMany({ name: /Stark$/ }, { isDeleted: true });
+ *     res.n; // Number of documents matched
+ *     res.nModified; // Number of documents modified
+ *
+ * This function triggers the following middleware.
+ *
+ * - `updateMany()`
+ *
+ * @param {Object} [filter]
+ * @param {Object|Array} [update] the update command. If array, this update will be treated as an update pipeline and not casted.
+ * @param {Object} [options]
+ * @param {Boolean} [options.multipleCastError] by default, mongoose only returns the first error that occurred in casting the query. Turn on this option to aggregate all the cast errors.
+ * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict)
+ * @param {Boolean} [options.upsert=false] if true, and no documents found, insert a new document
+ * @param {Object} [options.writeConcern=null] sets the [write concern](https://www.mongodb.com/docs/manual/reference/write-concern/) for replica sets. Overrides the [schema-level write concern](https://mongoosejs.com/docs/guide.html#writeConcern)
+ * @param {Boolean} [options.timestamps=null] If set to `false` and [schema-level timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this update. Does nothing if schema-level timestamps are not set.
+ * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object.
+ * @param {Boolean} [options.overwriteDiscriminatorKey=false] Mongoose removes discriminator key updates from `update` by default, set `overwriteDiscriminatorKey` to `true` to allow updating the discriminator key
+ * @param {Boolean} [options.overwriteImmutable=false] Mongoose removes updated immutable properties from `update` by default (excluding $setOnInsert). Set `overwriteImmutable` to `true` to allow updating immutable properties using other update operators.
+ * @return {Query} this
+ * @see Model.update https://mongoosejs.com/docs/api/model.html#Model.update()
+ * @see Query docs https://mongoosejs.com/docs/queries.html
+ * @see update https://www.mongodb.com/docs/manual/reference/method/db.collection.update/
+ * @see UpdateResult https://mongodb.github.io/node-mongodb-native/4.9/interfaces/UpdateResult.html
+ * @see MongoDB docs https://www.mongodb.com/docs/manual/reference/command/update/#update-command-output
+ * @api public
+ */
+
+Query.prototype.updateMany = function(conditions, doc, options, callback) {
+  if (typeof options === 'function') {
+    // .update(conditions, doc, callback)
+    callback = options;
+    options = null;
+  } else if (typeof doc === 'function') {
+    // .update(doc, callback);
+    callback = doc;
+    doc = conditions;
+    conditions = {};
+    options = null;
+  } else if (typeof conditions === 'function') {
+    // .update(callback)
+    callback = conditions;
+    conditions = undefined;
+    doc = undefined;
+    options = undefined;
+  } else if (typeof conditions === 'object' && !doc && !options && !callback) {
+    // .update(doc)
+    doc = conditions;
+    conditions = undefined;
+    options = undefined;
+    callback = undefined;
+  }
+
+  return _update(this, 'updateMany', conditions, doc, options, callback);
+};
+
+/**
+ * Declare and/or execute this query as an updateOne() operation.
+ * MongoDB will update _only_ the first document that matches `filter`.
+ *
+ * - Use `replaceOne()` if you want to overwrite an entire document rather than using [atomic operators](https://www.mongodb.com/docs/manual/tutorial/model-data-for-atomic-operations/#pattern) like `$set`.
+ *
+ * **Note** updateOne will _not_ fire update middleware. Use `pre('updateOne')`
+ * and `post('updateOne')` instead.
+ *
+ * #### Example:
+ *
+ *     const res = await Person.updateOne({ name: 'Jean-Luc Picard' }, { ship: 'USS Enterprise' });
+ *     res.acknowledged; // Indicates if this write result was acknowledged. If not, then all other members of this result will be undefined.
+ *     res.matchedCount; // Number of documents that matched the filter
+ *     res.modifiedCount; // Number of documents that were modified
+ *     res.upsertedCount; // Number of documents that were upserted
+ *     res.upsertedId; // Identifier of the inserted document (if an upsert took place)
+ *
+ * This function triggers the following middleware.
+ *
+ * - `updateOne()`
+ *
+ * @param {Object} [filter]
+ * @param {Object|Array} [update] the update command. If array, this update will be treated as an update pipeline and not casted.
+ * @param {Object} [options]
+ * @param {Boolean} [options.multipleCastError] by default, mongoose only returns the first error that occurred in casting the query. Turn on this option to aggregate all the cast errors.
+ * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict)
+ * @param {Boolean} [options.upsert=false] if true, and no documents found, insert a new document
+ * @param {Object} [options.writeConcern=null] sets the [write concern](https://www.mongodb.com/docs/manual/reference/write-concern/) for replica sets. Overrides the [schema-level write concern](https://mongoosejs.com/docs/guide.html#writeConcern)
+ * @param {Boolean} [options.timestamps=null] If set to `false` and [schema-level timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this update. Note that this allows you to overwrite timestamps. Does nothing if schema-level timestamps are not set.
+ * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object.
+ * @param {Boolean} [options.overwriteDiscriminatorKey=false] Mongoose removes discriminator key updates from `update` by default, set `overwriteDiscriminatorKey` to `true` to allow updating the discriminator key
+ * @param {Boolean} [options.overwriteImmutable=false] Mongoose removes updated immutable properties from `update` by default (excluding $setOnInsert). Set `overwriteImmutable` to `true` to allow updating immutable properties using other update operators.
+ * @return {Query} this
+ * @see Model.update https://mongoosejs.com/docs/api/model.html#Model.update()
+ * @see Query docs https://mongoosejs.com/docs/queries.html
+ * @see update https://www.mongodb.com/docs/manual/reference/method/db.collection.update/
+ * @see UpdateResult https://mongodb.github.io/node-mongodb-native/4.9/interfaces/UpdateResult.html
+ * @see MongoDB docs https://www.mongodb.com/docs/manual/reference/command/update/#update-command-output
+ * @api public
+ */
+
+Query.prototype.updateOne = function(conditions, doc, options, callback) {
+  if (typeof options === 'function') {
+    // .update(conditions, doc, callback)
+    callback = options;
+    options = null;
+  } else if (typeof doc === 'function') {
+    // .update(doc, callback);
+    callback = doc;
+    doc = conditions;
+    conditions = {};
+    options = null;
+  } else if (typeof conditions === 'function') {
+    // .update(callback)
+    callback = conditions;
+    conditions = undefined;
+    doc = undefined;
+    options = undefined;
+  } else if (typeof conditions === 'object' && !doc && !options && !callback) {
+    // .update(doc)
+    doc = conditions;
+    conditions = undefined;
+    options = undefined;
+    callback = undefined;
+  }
+
+  return _update(this, 'updateOne', conditions, doc, options, callback);
+};
+
+/**
+ * Declare and/or execute this query as a replaceOne() operation.
+ * MongoDB will replace the existing document and will not accept any [atomic operators](https://www.mongodb.com/docs/manual/tutorial/model-data-for-atomic-operations/#pattern) (`$set`, etc.)
+ *
+ * **Note** replaceOne will _not_ fire update middleware. Use `pre('replaceOne')`
+ * and `post('replaceOne')` instead.
+ *
+ * #### Example:
+ *
+ *     const res = await Person.replaceOne({ _id: 24601 }, { name: 'Jean Valjean' });
+ *     res.acknowledged; // Indicates if this write result was acknowledged. If not, then all other members of this result will be undefined.
+ *     res.matchedCount; // Number of documents that matched the filter
+ *     res.modifiedCount; // Number of documents that were modified
+ *     res.upsertedCount; // Number of documents that were upserted
+ *     res.upsertedId; // Identifier of the inserted document (if an upsert took place)
+ *
+ * This function triggers the following middleware.
+ *
+ * - `replaceOne()`
+ *
+ * @param {Object} [filter]
+ * @param {Object} [doc] the update command
+ * @param {Object} [options]
+ * @param {Boolean} [options.multipleCastError] by default, mongoose only returns the first error that occurred in casting the query. Turn on this option to aggregate all the cast errors.
+ * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict)
+ * @param {Boolean} [options.upsert=false] if true, and no documents found, insert a new document
+ * @param {Object} [options.writeConcern=null] sets the [write concern](https://www.mongodb.com/docs/manual/reference/write-concern/) for replica sets. Overrides the [schema-level write concern](https://mongoosejs.com/docs/guide.html#writeConcern)
+ * @param {Boolean} [options.timestamps=null] If set to `false` and [schema-level timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this update. Does nothing if schema-level timestamps are not set.
+ * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object.
+ * @return {Query} this
+ * @see Model.update https://mongoosejs.com/docs/api/model.html#Model.update()
+ * @see Query docs https://mongoosejs.com/docs/queries.html
+ * @see update https://www.mongodb.com/docs/manual/reference/method/db.collection.update/
+ * @see UpdateResult https://mongodb.github.io/node-mongodb-native/4.9/interfaces/UpdateResult.html
+ * @see MongoDB docs https://www.mongodb.com/docs/manual/reference/command/update/#update-command-output
+ * @api public
+ */
+
+Query.prototype.replaceOne = function(conditions, doc, options, callback) {
+  if (typeof options === 'function') {
+    // .update(conditions, doc, callback)
+    callback = options;
+    options = null;
+  } else if (typeof doc === 'function') {
+    // .update(doc, callback);
+    callback = doc;
+    doc = conditions;
+    conditions = {};
+    options = null;
+  } else if (typeof conditions === 'function') {
+    // .update(callback)
+    callback = conditions;
+    conditions = undefined;
+    doc = undefined;
+    options = undefined;
+  } else if (typeof conditions === 'object' && !doc && !options && !callback) {
+    // .update(doc)
+    doc = conditions;
+    conditions = undefined;
+    options = undefined;
+    callback = undefined;
+  }
+
+  return _update(this, 'replaceOne', conditions, doc, options, callback);
+};
+
+/**
+ * Internal helper for update, updateMany, updateOne, replaceOne
+ * @param {Query} query
+ * @param {String} op
+ * @param {Object} filter
+ * @param {Document} [doc]
+ * @param {Object} [options]
+ * @param {Function} callback
+ * @api private
+ */
+
+function _update(query, op, filter, doc, options, callback) {
+  // make sure we don't send in the whole Document to merge()
+  query.op = op;
+  query._validateOp();
+  doc = doc || {};
+
+  // strict is an option used in the update checking, make sure it gets set
+  if (options != null) {
+    if ('strict' in options) {
+      query._mongooseOptions.strict = options.strict;
+    }
+  }
+
+  if (!(filter instanceof Query) &&
+      filter != null &&
+      filter.toString() !== '[object Object]') {
+    query.error(new ObjectParameterError(filter, 'filter', op));
+  } else {
+    query.merge(filter);
+  }
+
+  if (utils.isObject(options)) {
+    query.setOptions(options);
+  }
+
+  query._mergeUpdate(doc);
+
+  // Hooks
+  if (callback) {
+    query.exec(callback);
+
+    return query;
+  }
+
+  return query;
+}
+
+/**
+ * Runs a function `fn` and treats the return value of `fn` as the new value
+ * for the query to resolve to.
+ *
+ * Any functions you pass to `transform()` will run **after** any post hooks.
+ *
+ * #### Example:
+ *
+ *     const res = await MyModel.findOne().transform(res => {
+ *       // Sets a `loadedAt` property on the doc that tells you the time the
+ *       // document was loaded.
+ *       return res == null ?
+ *         res :
+ *         Object.assign(res, { loadedAt: new Date() });
+ *     });
+ *
+ * @method transform
+ * @memberOf Query
+ * @instance
+ * @param {Function} fn function to run to transform the query result
+ * @return {Query} this
+ */
+
+Query.prototype.transform = function(fn) {
+  this._transforms.push(fn);
+  return this;
+};
+
+/**
+ * Make this query throw an error if no documents match the given `filter`.
+ * This is handy for integrating with async/await, because `orFail()` saves you
+ * an extra `if` statement to check if no document was found.
+ *
+ * #### Example:
+ *
+ *     // Throws if no doc returned
+ *     await Model.findOne({ foo: 'bar' }).orFail();
+ *
+ *     // Throws if no document was updated. Note that `orFail()` will still
+ *     // throw if the only document that matches is `{ foo: 'bar', name: 'test' }`,
+ *     // because `orFail()` will throw if no document was _updated_, not
+ *     // if no document was _found_.
+ *     await Model.updateOne({ foo: 'bar' }, { name: 'test' }).orFail();
+ *
+ *     // Throws "No docs found!" error if no docs match `{ foo: 'bar' }`
+ *     await Model.find({ foo: 'bar' }).orFail(new Error('No docs found!'));
+ *
+ *     // Throws "Not found" error if no document was found
+ *     await Model.findOneAndUpdate({ foo: 'bar' }, { name: 'test' }).
+ *       orFail(() => Error('Not found'));
+ *
+ * @method orFail
+ * @memberOf Query
+ * @instance
+ * @param {Function|Error} [err] optional error to throw if no docs match `filter`. If not specified, `orFail()` will throw a `DocumentNotFoundError`
+ * @return {Query} this
+ */
+
+Query.prototype.orFail = function(err) {
+  this.transform(res => {
+    switch (this.op) {
+      case 'find':
+        if (res.length === 0) {
+          throw _orFailError(err, this);
+        }
+        break;
+      case 'findOne':
+        if (res == null) {
+          throw _orFailError(err, this);
+        }
+        break;
+      case 'replaceOne':
+      case 'updateMany':
+      case 'updateOne':
+        if (res && res.matchedCount === 0) {
+          throw _orFailError(err, this);
+        }
+        break;
+      case 'findOneAndDelete':
+      case 'findOneAndUpdate':
+      case 'findOneAndReplace':
+        if (this.options.includeResultMetadata && res != null && res.value == null) {
+          throw _orFailError(err, this);
+        }
+        if (!this.options.includeResultMetadata && res == null) {
+          throw _orFailError(err, this);
+        }
+        break;
+      case 'deleteMany':
+      case 'deleteOne':
+        if (res.deletedCount === 0) {
+          throw _orFailError(err, this);
+        }
+        break;
+      default:
+        break;
+    }
+
+    return res;
+  });
+  return this;
+};
+
+/**
+ * Get the error to throw for `orFail()`
+ * @param {Error|undefined} err
+ * @param {Query} query
+ * @api private
+ */
+
+function _orFailError(err, query) {
+  if (typeof err === 'function') {
+    err = err.call(query);
+  }
+
+  if (err == null) {
+    err = new DocumentNotFoundError(query.getQuery(), query.model.modelName);
+  }
+
+  return err;
+}
+
+/**
+ * Wrapper function to call isPathSelectedInclusive on a query.
+ * @param {String} path
+ * @return {Boolean}
+ * @api public
+ */
+
+Query.prototype.isPathSelectedInclusive = function(path) {
+  return isPathSelectedInclusive(this._fields, path);
+};
+
+/**
+ * Executes the query
+ *
+ * #### Example:
+ *
+ *     const promise = query.exec();
+ *     const promise = query.exec('update');
+ *
+ * @param {String|Function} [operation]
+ * @return {Promise}
+ * @api public
+ */
+
+Query.prototype.exec = async function exec(op) {
+  if (typeof op === 'function' || (arguments.length >= 2 && typeof arguments[1] === 'function')) {
+    throw new MongooseError('Query.prototype.exec() no longer accepts a callback');
+  }
+
+  if (typeof op === 'string') {
+    this.op = op;
+  }
+
+  if (this.op == null) {
+    throw new MongooseError('Query must have `op` before executing');
+  }
+  if (this.model == null) {
+    throw new MongooseError('Query must have an associated model before executing');
+  }
+  this._validateOp();
+
+  if (!this.op) {
+    return;
+  }
+
+  if (this.options && this.options.sort) {
+    const keys = Object.keys(this.options.sort);
+    if (keys.includes('')) {
+      throw new Error('Invalid field "" passed to sort()');
+    }
+  }
+
+  let thunk = '_' + this.op;
+  if (this.op === 'distinct') {
+    thunk = '__distinct';
+  }
+
+  if (this._executionStack != null) {
+    let str = this.toString();
+    if (str.length > 60) {
+      str = str.slice(0, 60) + '...';
+    }
+    const err = new MongooseError('Query was already executed: ' + str);
+    err.originalStack = this._executionStack;
+    throw err;
+  } else {
+    this._executionStack = new Error().stack;
+  }
+
+  let skipWrappedFunction = null;
+  try {
+    await _executePreExecHooks(this);
+  } catch (err) {
+    if (err instanceof Kareem.skipWrappedFunction) {
+      skipWrappedFunction = err;
+    } else {
+      throw err;
+    }
+  }
+
+  let res;
+
+  let error = null;
+  try {
+    await _executePreHooks(this);
+    res = skipWrappedFunction ? skipWrappedFunction.args[0] : await this[thunk]();
+
+    for (const fn of this._transforms) {
+      res = fn(res);
+    }
+  } catch (err) {
+    if (err instanceof Kareem.skipWrappedFunction) {
+      res = err.args[0];
+    } else {
+      error = err;
+    }
+
+    error = this.model.schema._transformDuplicateKeyError(error);
+  }
+
+  res = await _executePostHooks(this, res, error);
+
+  await _executePostExecHooks(this);
+
+  return res;
+};
+
+/*!
+ * ignore
+ */
+
+function _executePostExecHooks(query) {
+  return new Promise((resolve, reject) => {
+    query._hooks.execPost('exec', query, [], {}, (error) => {
+      if (error) {
+        return reject(error);
+      }
+
+      resolve();
+    });
+  });
+}
+
+/*!
+ * ignore
+ */
+
+function _executePostHooks(query, res, error, op) {
+  if (query._queryMiddleware == null) {
+    if (error != null) {
+      throw error;
+    }
+    return res;
+  }
+
+  return new Promise((resolve, reject) => {
+    const opts = error ? { error } : {};
+
+    query._queryMiddleware.execPost(op || query.op, query, [res], opts, (error, res) => {
+      if (error) {
+        return reject(error);
+      }
+
+      resolve(res);
+    });
+  });
+}
+
+/*!
+ * ignore
+ */
+
+function _executePreExecHooks(query) {
+  return new Promise((resolve, reject) => {
+    query._hooks.execPre('exec', query, [], (error) => {
+      if (error != null) {
+        return reject(error);
+      }
+      resolve();
+    });
+  });
+}
+
+/*!
+ * ignore
+ */
+
+function _executePreHooks(query, op) {
+  if (query._queryMiddleware == null) {
+    return;
+  }
+
+  return new Promise((resolve, reject) => {
+    query._queryMiddleware.execPre(op || query.op, query, [], (error) => {
+      if (error != null) {
+        return reject(error);
+      }
+      resolve();
+    });
+  });
+}
+
+/**
+ * Executes the query returning a `Promise` which will be
+ * resolved with either the doc(s) or rejected with the error.
+ *
+ * More about [`then()` in JavaScript](https://masteringjs.io/tutorials/fundamentals/then).
+ *
+ * @param {Function} [resolve]
+ * @param {Function} [reject]
+ * @return {Promise}
+ * @api public
+ */
+
+Query.prototype.then = function(resolve, reject) {
+  return this.exec().then(resolve, reject);
+};
+
+/**
+ * Executes the query returning a `Promise` which will be
+ * resolved with either the doc(s) or rejected with the error.
+ * Like `.then()`, but only takes a rejection handler.
+ *
+ * More about [Promise `catch()` in JavaScript](https://masteringjs.io/tutorials/fundamentals/catch).
+ *
+ * @param {Function} [reject]
+ * @return {Promise}
+ * @api public
+ */
+
+Query.prototype.catch = function(reject) {
+  return this.exec().then(null, reject);
+};
+
+/**
+ * Executes the query returning a `Promise` which will be
+ * resolved with `.finally()` chained.
+ *
+ * More about [Promise `finally()` in JavaScript](https://thecodebarbarian.com/using-promise-finally-in-node-js.html).
+ *
+ * @param {Function} [onFinally]
+ * @return {Promise}
+ * @api public
+ */
+
+Query.prototype.finally = function(onFinally) {
+  return this.exec().finally(onFinally);
+};
+
+/**
+ * Returns a string representation of this query.
+ *
+ * More about [`toString()` in JavaScript](https://masteringjs.io/tutorials/fundamentals/tostring).
+ *
+ * #### Example:
+ *     const q = Model.find();
+ *     console.log(q); // Prints "Query { find }"
+ *
+ * @return {String}
+ * @api public
+ * @method [Symbol.toStringTag]
+ * @memberOf Query
+ */
+
+Query.prototype[Symbol.toStringTag] = function toString() {
+  return `Query { ${this.op} }`;
+};
+
+/**
+ * Add pre [middleware](https://mongoosejs.com/docs/middleware.html) to this query instance. Doesn't affect
+ * other queries.
+ *
+ * #### Example:
+ *
+ *     const q1 = Question.find({ answer: 42 });
+ *     q1.pre(function middleware() {
+ *       console.log(this.getFilter());
+ *     });
+ *     await q1.exec(); // Prints "{ answer: 42 }"
+ *
+ *     // Doesn't print anything, because `middleware()` is only
+ *     // registered on `q1`.
+ *     await Question.find({ answer: 42 });
+ *
+ * @param {Function} fn
+ * @return {Promise}
+ * @api public
+ */
+
+Query.prototype.pre = function(fn) {
+  this._hooks.pre('exec', fn);
+  return this;
+};
+
+/**
+ * Add post [middleware](https://mongoosejs.com/docs/middleware.html) to this query instance. Doesn't affect
+ * other queries.
+ *
+ * #### Example:
+ *
+ *     const q1 = Question.find({ answer: 42 });
+ *     q1.post(function middleware() {
+ *       console.log(this.getFilter());
+ *     });
+ *     await q1.exec(); // Prints "{ answer: 42 }"
+ *
+ *     // Doesn't print anything, because `middleware()` is only
+ *     // registered on `q1`.
+ *     await Question.find({ answer: 42 });
+ *
+ * @param {Function} fn
+ * @return {Promise}
+ * @api public
+ */
+
+Query.prototype.post = function(fn) {
+  this._hooks.post('exec', fn);
+  return this;
+};
+
+/**
+ * Casts obj for an update command.
+ *
+ * @param {Object} obj
+ * @return {Object} obj after casting its values
+ * @method _castUpdate
+ * @memberOf Query
+ * @instance
+ * @api private
+ */
+
+Query.prototype._castUpdate = function _castUpdate(obj) {
+  let schema = this.schema;
+
+  const discriminatorKey = schema.options.discriminatorKey;
+  const baseSchema = schema._baseSchema ? schema._baseSchema : schema;
+  if (this._mongooseOptions.overwriteDiscriminatorKey &&
+      obj[discriminatorKey] != null &&
+      baseSchema.discriminators) {
+    const _schema = Object.values(baseSchema.discriminators).find(
+      discriminator => discriminator.discriminatorMapping.value === obj[discriminatorKey]
+    );
+    if (_schema != null) {
+      schema = _schema;
+    }
+  }
+
+  let upsert;
+  if ('upsert' in this.options) {
+    upsert = this.options.upsert;
+  }
+
+  return castUpdate(schema, obj, {
+    strict: this._mongooseOptions.strict,
+    upsert: upsert,
+    arrayFilters: this.options.arrayFilters,
+    overwriteDiscriminatorKey: this._mongooseOptions.overwriteDiscriminatorKey,
+    overwriteImmutable: this._mongooseOptions.overwriteImmutable
+  }, this, this._conditions);
+};
+
+/**
+ * Specifies paths which should be populated with other documents.
+ *
+ * #### Example:
+ *
+ *     let book = await Book.findOne().populate('authors');
+ *     book.title; // 'Node.js in Action'
+ *     book.authors[0].name; // 'TJ Holowaychuk'
+ *     book.authors[1].name; // 'Nathan Rajlich'
+ *
+ *     let books = await Book.find().populate({
+ *       path: 'authors',
+ *       // `match` and `sort` apply to the Author model,
+ *       // not the Book model. These options do not affect
+ *       // which documents are in `books`, just the order and
+ *       // contents of each book document's `authors`.
+ *       match: { name: new RegExp('.*h.*', 'i') },
+ *       sort: { name: -1 }
+ *     });
+ *     books[0].title; // 'Node.js in Action'
+ *     // Each book's `authors` are sorted by name, descending.
+ *     books[0].authors[0].name; // 'TJ Holowaychuk'
+ *     books[0].authors[1].name; // 'Marc Harter'
+ *
+ *     books[1].title; // 'Professional AngularJS'
+ *     // Empty array, no authors' name has the letter 'h'
+ *     books[1].authors; // []
+ *
+ * Paths are populated after the query executes and a response is received. A
+ * separate query is then executed for each path specified for population. After
+ * a response for each query has also been returned, the results are passed to
+ * the callback.
+ *
+ * @param {Object|String|String[]} path either the path(s) to populate or an object specifying all parameters
+ * @param {Object|String} [select] Field selection for the population query
+ * @param {Model} [model] The model you wish to use for population. If not specified, populate will look up the model by the name in the Schema's `ref` field.
+ * @param {Object} [match] Conditions for the population query
+ * @param {Object} [options] Options for the population query (sort, etc)
+ * @param {String} [options.path=null] The path to populate.
+ * @param {boolean} [options.retainNullValues=false] by default, Mongoose removes null and undefined values from populated arrays. Use this option to make `populate()` retain `null` and `undefined` array entries.
+ * @param {boolean} [options.getters=false] if true, Mongoose will call any getters defined on the `localField`. By default, Mongoose gets the raw value of `localField`. For example, you would need to set this option to `true` if you wanted to [add a `lowercase` getter to your `localField`](https://mongoosejs.com/docs/schematypes.html#schematype-options).
+ * @param {boolean} [options.clone=false] When you do `BlogPost.find().populate('author')`, blog posts with the same author will share 1 copy of an `author` doc. Enable this option to make Mongoose clone populated docs before assigning them.
+ * @param {Object|Function} [options.match=null] Add an additional filter to the populate query. Can be a filter object containing [MongoDB query syntax](https://www.mongodb.com/docs/manual/tutorial/query-documents/), or a function that returns a filter object.
+ * @param {Function} [options.transform=null] Function that Mongoose will call on every populated document that allows you to transform the populated document.
+ * @param {Object} [options.options=null] Additional options like `limit` and `lean`.
+ * @see population https://mongoosejs.com/docs/populate.html
+ * @see Query#select https://mongoosejs.com/docs/api/query.html#Query.prototype.select()
+ * @see Model.populate https://mongoosejs.com/docs/api/model.html#Model.populate()
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.populate = function() {
+  const args = Array.from(arguments);
+  // Bail when given no truthy arguments
+  if (!args.some(Boolean)) {
+    return this;
+  }
+
+  const res = utils.populate.apply(null, args);
+
+  // Propagate readConcern and readPreference and lean from parent query,
+  // unless one already specified
+  if (this.options != null) {
+    const readConcern = this.options.readConcern;
+    const readPref = this.options.readPreference;
+
+    for (const populateOptions of res) {
+      if (readConcern != null && (populateOptions && populateOptions.options && populateOptions.options.readConcern) == null) {
+        populateOptions.options = populateOptions.options || {};
+        populateOptions.options.readConcern = readConcern;
+      }
+      if (readPref != null && (populateOptions && populateOptions.options && populateOptions.options.readPreference) == null) {
+        populateOptions.options = populateOptions.options || {};
+        populateOptions.options.readPreference = readPref;
+      }
+    }
+  }
+
+  const opts = this._mongooseOptions;
+
+  if (opts.lean != null) {
+    const lean = opts.lean;
+    for (const populateOptions of res) {
+      if ((populateOptions && populateOptions.options && populateOptions.options.lean) == null) {
+        populateOptions.options = populateOptions.options || {};
+        populateOptions.options.lean = lean;
+      }
+    }
+  }
+
+  if (!utils.isObject(opts.populate)) {
+    opts.populate = {};
+  }
+
+  const pop = opts.populate;
+
+  for (const populateOptions of res) {
+    const path = populateOptions.path;
+    if (pop[path] && pop[path].populate && populateOptions.populate) {
+      populateOptions.populate = pop[path].populate.concat(populateOptions.populate);
+    }
+
+    pop[populateOptions.path] = populateOptions;
+  }
+  return this;
+};
+
+/**
+ * Gets a list of paths to be populated by this query
+ *
+ * #### Example:
+ *
+ *      bookSchema.pre('findOne', function() {
+ *        let keys = this.getPopulatedPaths(); // ['author']
+ *      });
+ *      ...
+ *      Book.findOne({}).populate('author');
+ *
+ * #### Example:
+ *
+ *      // Deep populate
+ *      const q = L1.find().populate({
+ *        path: 'level2',
+ *        populate: { path: 'level3' }
+ *      });
+ *      q.getPopulatedPaths(); // ['level2', 'level2.level3']
+ *
+ * @return {Array} an array of strings representing populated paths
+ * @api public
+ */
+
+Query.prototype.getPopulatedPaths = function getPopulatedPaths() {
+  const obj = this._mongooseOptions.populate || {};
+  const ret = Object.keys(obj);
+  for (const path of Object.keys(obj)) {
+    const pop = obj[path];
+    if (!Array.isArray(pop.populate)) {
+      continue;
+    }
+    _getPopulatedPaths(ret, pop.populate, path + '.');
+  }
+  return ret;
+};
+
+/*!
+ * ignore
+ */
+
+function _getPopulatedPaths(list, arr, prefix) {
+  for (const pop of arr) {
+    list.push(prefix + pop.path);
+    if (!Array.isArray(pop.populate)) {
+      continue;
+    }
+    _getPopulatedPaths(list, pop.populate, prefix + pop.path + '.');
+  }
+}
+
+/**
+ * Casts this query to the schema of `model`
+ *
+ * #### Note:
+ *
+ * If `obj` is present, it is cast instead of this query.
+ *
+ * @param {Model} [model] the model to cast to. If not set, defaults to `this.model`
+ * @param {Object} [obj]
+ * @return {Object}
+ * @api public
+ */
+
+Query.prototype.cast = function(model, obj) {
+  obj || (obj = this._conditions);
+  model = model || this.model;
+  const discriminatorKey = model.schema.options.discriminatorKey;
+  if (obj != null &&
+      obj.hasOwnProperty(discriminatorKey)) {
+    model = getDiscriminatorByValue(model.discriminators, obj[discriminatorKey]) || model;
+  }
+
+  const opts = { upsert: this.options && this.options.upsert };
+  if (this.options) {
+    if ('strict' in this.options) {
+      opts.strict = this.options.strict;
+    }
+    if ('strictQuery' in this.options) {
+      opts.strictQuery = this.options.strictQuery;
+    }
+  }
+  if ('sanitizeFilter' in this._mongooseOptions) {
+    opts.sanitizeFilter = this._mongooseOptions.sanitizeFilter;
+  }
+
+  try {
+    return cast(model.schema, obj, opts, this);
+  } catch (err) {
+    // CastError, assign model
+    if (typeof err.setModel === 'function') {
+      err.setModel(model);
+    }
+    throw err;
+  }
+};
+
+/**
+ * Casts selected field arguments for field selection with mongo 2.2
+ *
+ *     query.select({ ids: { $elemMatch: { $in: [hexString] }})
+ *
+ * @param {Object} fields
+ * @see https://github.com/Automattic/mongoose/issues/1091
+ * @see https://www.mongodb.com/docs/manual/reference/projection/elemMatch/
+ * @api private
+ */
+
+Query.prototype._castFields = function _castFields(fields) {
+  let selected,
+      elemMatchKeys,
+      keys,
+      key,
+      out;
+
+  if (fields) {
+    keys = Object.keys(fields);
+    elemMatchKeys = [];
+
+    // collect $elemMatch args
+    for (let i = 0; i < keys.length; ++i) {
+      key = keys[i];
+      if (fields[key].$elemMatch) {
+        selected || (selected = {});
+        selected[key] = fields[key];
+        elemMatchKeys.push(key);
+      }
+    }
+  }
+
+  if (selected) {
+    // they passed $elemMatch, cast em
+    try {
+      out = this.cast(this.model, selected);
+    } catch (err) {
+      return err;
+    }
+
+    // apply the casted field args
+    for (let i = 0; i < elemMatchKeys.length; ++i) {
+      key = elemMatchKeys[i];
+      fields[key] = out[key];
+    }
+  }
+
+  return fields;
+};
+
+/**
+ * Applies schematype selected options to this query.
+ * @api private
+ */
+
+Query.prototype._applyPaths = function applyPaths() {
+  if (!this.model) {
+    return;
+  }
+  this._fields = this._fields || {};
+
+  let sanitizeProjection = undefined;
+  if (this.model != null && utils.hasUserDefinedProperty(this.model.db.options, 'sanitizeProjection')) {
+    sanitizeProjection = this.model.db.options.sanitizeProjection;
+  } else if (this.model != null && utils.hasUserDefinedProperty(this.model.base.options, 'sanitizeProjection')) {
+    sanitizeProjection = this.model.base.options.sanitizeProjection;
+  } else {
+    sanitizeProjection = this._mongooseOptions.sanitizeProjection;
+  }
+
+  const schemaLevelProjections = this._mongooseOptions.schemaLevelProjections ?? true;
+
+  if (schemaLevelProjections) {
+    helpers.applyPaths(this._fields, this.model.schema, sanitizeProjection);
+  }
+
+  let _selectPopulatedPaths = true;
+
+  if ('selectPopulatedPaths' in this.model.base.options) {
+    _selectPopulatedPaths = this.model.base.options.selectPopulatedPaths;
+  }
+  if ('selectPopulatedPaths' in this.model.schema.options) {
+    _selectPopulatedPaths = this.model.schema.options.selectPopulatedPaths;
+  }
+
+  if (_selectPopulatedPaths) {
+    selectPopulatedFields(this._fields, this._userProvidedFields, this._mongooseOptions.populate);
+  }
+};
+
+/**
+ * Returns a wrapper around a [mongodb driver cursor](https://mongodb.github.io/node-mongodb-native/4.9/classes/FindCursor.html).
+ * A QueryCursor exposes a Streams3 interface, as well as a `.next()` function.
+ *
+ * The `.cursor()` function triggers pre find hooks, but **not** post find hooks.
+ *
+ * #### Example:
+ *
+ *     // There are 2 ways to use a cursor. First, as a stream:
+ *     Thing.
+ *       find({ name: /^hello/ }).
+ *       cursor().
+ *       on('data', function(doc) { console.log(doc); }).
+ *       on('end', function() { console.log('Done!'); });
+ *
+ *     // Or you can use `.next()` to manually get the next doc in the stream.
+ *     // `.next()` returns a promise, so you can use promises or callbacks.
+ *     const cursor = Thing.find({ name: /^hello/ }).cursor();
+ *     cursor.next(function(error, doc) {
+ *       console.log(doc);
+ *     });
+ *
+ *     // Because `.next()` returns a promise, you can use co
+ *     // to easily iterate through all documents without loading them
+ *     // all into memory.
+ *     const cursor = Thing.find({ name: /^hello/ }).cursor();
+ *     for (let doc = await cursor.next(); doc != null; doc = await cursor.next()) {
+ *       console.log(doc);
+ *     }
+ *
+ * #### Valid options
+ *
+ *   - `transform`: optional function which accepts a mongoose document. The return value of the function will be emitted on `data` and returned by `.next()`.
+ *
+ * @return {QueryCursor}
+ * @param {Object} [options]
+ * @see QueryCursor https://mongoosejs.com/docs/api/querycursor.html
+ * @api public
+ */
+
+Query.prototype.cursor = function cursor(opts) {
+  if (opts) {
+    this.setOptions(opts);
+  }
+
+  try {
+    this.cast(this.model);
+  } catch (err) {
+    return (new QueryCursor(this))._markError(err);
+  }
+
+  return new QueryCursor(this);
+};
+
+// the rest of these are basically to support older Mongoose syntax with mquery
+
+/**
+ * Sets the tailable option (for use with capped collections).
+ *
+ * #### Example:
+ *
+ *     query.tailable(); // true
+ *     query.tailable(true);
+ *     query.tailable(false);
+ *
+ *     // Set both `tailable` and `awaitData` options
+ *     query.tailable({ awaitData: true });
+ *
+ * #### Note:
+ *
+ * Cannot be used with `distinct()`
+ *
+ * @param {Boolean} bool defaults to true
+ * @param {Object} [opts] options to set
+ * @param {Boolean} [opts.awaitData] false by default. Set to true to keep the cursor open even if there's no data.
+ * @param {Number} [opts.maxAwaitTimeMS] the maximum amount of time for the server to wait on new documents to satisfy a tailable cursor query. Requires `tailable` and `awaitData` to be true
+ * @see tailable https://www.mongodb.com/docs/manual/tutorial/create-tailable-cursor/
+ * @api public
+ */
+
+Query.prototype.tailable = function(val, opts) {
+  // we need to support the tailable({ awaitData : true }) as well as the
+  // tailable(true, {awaitData :true}) syntax that mquery does not support
+  if (val != null && typeof val.constructor === 'function' && val.constructor.name === 'Object') {
+    opts = val;
+    val = true;
+  }
+
+  if (val === undefined) {
+    val = true;
+  }
+
+  if (opts && typeof opts === 'object') {
+    for (const key of Object.keys(opts)) {
+      if (key === 'awaitData' || key === 'awaitdata') { // backwards compat, see gh-10875
+        // For backwards compatibility
+        this.options['awaitData'] = !!opts[key];
+      } else {
+        this.options[key] = opts[key];
+      }
+    }
+  }
+
+  this.options.tailable = arguments.length ? !!val : true;
+
+  return this;
+};
+
+/**
+ * Declares an intersects query for `geometry()`.
+ *
+ * #### Example:
+ *
+ *     query.where('path').intersects().geometry({
+ *       type: 'LineString',
+ *       coordinates: [[180.0, 11.0], [180, 9.0]]
+ *     });
+ *
+ *     query.where('path').intersects({
+ *       type: 'LineString',
+ *       coordinates: [[180.0, 11.0], [180, 9.0]]
+ *     });
+ *
+ * #### Note:
+ *
+ * **MUST** be used after `where()`.
+ *
+ * #### Note:
+ *
+ * In Mongoose 3.7, `intersects` changed from a getter to a function. If you need the old syntax, use [this](https://github.com/ebensing/mongoose-within).
+ *
+ * @method intersects
+ * @memberOf Query
+ * @instance
+ * @param {Object} [arg]
+ * @return {Query} this
+ * @see $geometry https://www.mongodb.com/docs/manual/reference/operator/geometry/
+ * @see geoIntersects https://www.mongodb.com/docs/manual/reference/operator/geoIntersects/
+ * @api public
+ */
+
+/**
+ * Specifies a `$geometry` condition
+ *
+ * #### Example:
+ *
+ *     const polyA = [[[ 10, 20 ], [ 10, 40 ], [ 30, 40 ], [ 30, 20 ]]]
+ *     query.where('loc').within().geometry({ type: 'Polygon', coordinates: polyA })
+ *
+ *     // or
+ *     const polyB = [[ 0, 0 ], [ 1, 1 ]]
+ *     query.where('loc').within().geometry({ type: 'LineString', coordinates: polyB })
+ *
+ *     // or
+ *     const polyC = [ 0, 0 ]
+ *     query.where('loc').within().geometry({ type: 'Point', coordinates: polyC })
+ *
+ *     // or
+ *     query.where('loc').intersects().geometry({ type: 'Point', coordinates: polyC })
+ *
+ * The argument is assigned to the most recent path passed to `where()`.
+ *
+ * #### Note:
+ *
+ * `geometry()` **must** come after either `intersects()` or `within()`.
+ *
+ * The `object` argument must contain `type` and `coordinates` properties.
+ * - type {String}
+ * - coordinates {Array}
+ *
+ * @method geometry
+ * @memberOf Query
+ * @instance
+ * @param {Object} object Must contain a `type` property which is a String and a `coordinates` property which is an Array. See the examples.
+ * @return {Query} this
+ * @see $geometry https://www.mongodb.com/docs/manual/reference/operator/geometry/
+ * @see Geospatial Support Enhancements https://www.mongodb.com/docs/manual/release-notes/2.4/#geospatial-support-enhancements
+ * @see MongoDB Geospatial Indexing https://www.mongodb.com/docs/manual/core/geospatial-indexes/
+ * @api public
+ */
+
+/**
+ * Specifies a `$near` or `$nearSphere` condition
+ *
+ * These operators return documents sorted by distance.
+ *
+ * #### Example:
+ *
+ *     query.where('loc').near({ center: [10, 10] });
+ *     query.where('loc').near({ center: [10, 10], maxDistance: 5 });
+ *     query.where('loc').near({ center: [10, 10], maxDistance: 5, spherical: true });
+ *     query.near('loc', { center: [10, 10], maxDistance: 5 });
+ *
+ * @method near
+ * @memberOf Query
+ * @instance
+ * @param {String} [path]
+ * @param {Object} val
+ * @return {Query} this
+ * @see $near https://www.mongodb.com/docs/manual/reference/operator/near/
+ * @see $nearSphere https://www.mongodb.com/docs/manual/reference/operator/nearSphere/
+ * @see $maxDistance https://www.mongodb.com/docs/manual/reference/operator/maxDistance/
+ * @see MongoDB Geospatial Indexing https://www.mongodb.com/docs/manual/core/geospatial-indexes/
+ * @api public
+ */
+
+/**
+ * Overwriting mquery is needed to support a couple different near() forms found in older
+ * versions of mongoose
+ * near([1,1])
+ * near(1,1)
+ * near(field, [1,2])
+ * near(field, 1, 2)
+ * In addition to all of the normal forms supported by mquery
+ *
+ * @method near
+ * @memberOf Query
+ * @instance
+ * @api private
+ */
+
+Query.prototype.near = function() {
+  const params = [];
+  const sphere = this._mongooseOptions.nearSphere;
+
+  // TODO refactor
+
+  if (arguments.length === 1) {
+    if (Array.isArray(arguments[0])) {
+      params.push({ center: arguments[0], spherical: sphere });
+    } else if (typeof arguments[0] === 'string') {
+      // just passing a path
+      params.push(arguments[0]);
+    } else if (utils.isObject(arguments[0])) {
+      if (typeof arguments[0].spherical !== 'boolean') {
+        arguments[0].spherical = sphere;
+      }
+      params.push(arguments[0]);
+    } else {
+      throw new TypeError('invalid argument');
+    }
+  } else if (arguments.length === 2) {
+    if (typeof arguments[0] === 'number' && typeof arguments[1] === 'number') {
+      params.push({ center: [arguments[0], arguments[1]], spherical: sphere });
+    } else if (typeof arguments[0] === 'string' && Array.isArray(arguments[1])) {
+      params.push(arguments[0]);
+      params.push({ center: arguments[1], spherical: sphere });
+    } else if (typeof arguments[0] === 'string' && utils.isObject(arguments[1])) {
+      params.push(arguments[0]);
+      if (typeof arguments[1].spherical !== 'boolean') {
+        arguments[1].spherical = sphere;
+      }
+      params.push(arguments[1]);
+    } else {
+      throw new TypeError('invalid argument');
+    }
+  } else if (arguments.length === 3) {
+    if (typeof arguments[0] === 'string' && typeof arguments[1] === 'number'
+        && typeof arguments[2] === 'number') {
+      params.push(arguments[0]);
+      params.push({ center: [arguments[1], arguments[2]], spherical: sphere });
+    } else {
+      throw new TypeError('invalid argument');
+    }
+  } else {
+    throw new TypeError('invalid argument');
+  }
+
+  return Query.base.near.apply(this, params);
+};
+
+/**
+ * _DEPRECATED_ Specifies a `$nearSphere` condition
+ *
+ * #### Example:
+ *
+ *     query.where('loc').nearSphere({ center: [10, 10], maxDistance: 5 });
+ *
+ * **Deprecated.** Use `query.near()` instead with the `spherical` option set to `true`.
+ *
+ * #### Example:
+ *
+ *     query.where('loc').near({ center: [10, 10], spherical: true });
+ *
+ * @deprecated
+ * @see near() https://mongoosejs.com/docs/api/query.html#Query.prototype.near()
+ * @see $near https://www.mongodb.com/docs/manual/reference/operator/near/
+ * @see $nearSphere https://www.mongodb.com/docs/manual/reference/operator/nearSphere/
+ * @see $maxDistance https://www.mongodb.com/docs/manual/reference/operator/maxDistance/
+ */
+
+Query.prototype.nearSphere = function() {
+  this._mongooseOptions.nearSphere = true;
+  this.near.apply(this, arguments);
+  return this;
+};
+
+/**
+ * Returns an asyncIterator for use with [`for/await/of` loops](https://thecodebarbarian.com/getting-started-with-async-iterators-in-node-js)
+ * This function *only* works for `find()` queries.
+ * You do not need to call this function explicitly, the JavaScript runtime
+ * will call it for you.
+ *
+ * #### Example:
+ *
+ *     for await (const doc of Model.aggregate([{ $sort: { name: 1 } }])) {
+ *       console.log(doc.name);
+ *     }
+ *
+ * Node.js 10.x supports async iterators natively without any flags. You can
+ * enable async iterators in Node.js 8.x using the [`--harmony_async_iteration` flag](https://github.com/tc39/proposal-async-iteration/issues/117#issuecomment-346695187).
+ *
+ * **Note:** This function is not if `Symbol.asyncIterator` is undefined. If
+ * `Symbol.asyncIterator` is undefined, that means your Node.js version does not
+ * support async iterators.
+ *
+ * @method [Symbol.asyncIterator]
+ * @memberOf Query
+ * @instance
+ * @api public
+ */
+
+if (Symbol.asyncIterator != null) {
+  Query.prototype[Symbol.asyncIterator] = function() {
+    return this.cursor().transformNull()._transformForAsyncIterator();
+  };
+}
+
+/**
+ * Specifies a `$polygon` condition
+ *
+ * #### Example:
+ *
+ *     query.where('loc').within().polygon([10, 20], [13, 25], [7, 15]);
+ *     query.polygon('loc', [10, 20], [13, 25], [7, 15]);
+ *
+ * @method polygon
+ * @memberOf Query
+ * @instance
+ * @param {String|Array} [path]
+ * @param {...Array|Object} [coordinatePairs]
+ * @return {Query} this
+ * @see $polygon https://www.mongodb.com/docs/manual/reference/operator/polygon/
+ * @see MongoDB Geospatial Indexing https://www.mongodb.com/docs/manual/core/geospatial-indexes/
+ * @api public
+ */
+
+/**
+ * Specifies a `$box` condition
+ *
+ * #### Example:
+ *
+ *     const lowerLeft = [40.73083, -73.99756]
+ *     const upperRight= [40.741404,  -73.988135]
+ *
+ *     query.where('loc').within().box(lowerLeft, upperRight)
+ *     query.box({ ll : lowerLeft, ur : upperRight })
+ *
+ * @method box
+ * @memberOf Query
+ * @instance
+ * @see $box https://www.mongodb.com/docs/manual/reference/operator/box/
+ * @see within() Query#within https://mongoosejs.com/docs/api/query.html#Query.prototype.within()
+ * @see MongoDB Geospatial Indexing https://www.mongodb.com/docs/manual/core/geospatial-indexes/
+ * @param {Object|Array<Number>} val1 Lower Left Coordinates OR a object of lower-left(ll) and upper-right(ur) Coordinates
+ * @param {Array<Number>} [val2] Upper Right Coordinates
+ * @return {Query} this
+ * @api public
+ */
+
+/**
+ * this is needed to support the mongoose syntax of:
+ * box(field, { ll : [x,y], ur : [x2,y2] })
+ * box({ ll : [x,y], ur : [x2,y2] })
+ *
+ * @method box
+ * @memberOf Query
+ * @instance
+ * @api private
+ */
+
+Query.prototype.box = function(ll, ur) {
+  if (!Array.isArray(ll) && utils.isObject(ll)) {
+    ur = ll.ur;
+    ll = ll.ll;
+  }
+  return Query.base.box.call(this, ll, ur);
+};
+
+/**
+ * Specifies a `$center` or `$centerSphere` condition.
+ *
+ * #### Example:
+ *
+ *     const area = { center: [50, 50], radius: 10, unique: true }
+ *     query.where('loc').within().circle(area)
+ *     // alternatively
+ *     query.circle('loc', area);
+ *
+ *     // spherical calculations
+ *     const area = { center: [50, 50], radius: 10, unique: true, spherical: true }
+ *     query.where('loc').within().circle(area)
+ *     // alternatively
+ *     query.circle('loc', area);
+ *
+ * @method circle
+ * @memberOf Query
+ * @instance
+ * @param {String} [path]
+ * @param {Object} area
+ * @return {Query} this
+ * @see $center https://www.mongodb.com/docs/manual/reference/operator/center/
+ * @see $centerSphere https://www.mongodb.com/docs/manual/reference/operator/centerSphere/
+ * @see $geoWithin https://www.mongodb.com/docs/manual/reference/operator/geoWithin/
+ * @see MongoDB Geospatial Indexing https://www.mongodb.com/docs/manual/core/geospatial-indexes/
+ * @api public
+ */
+
+/**
+ * _DEPRECATED_ Alias for [circle](https://mongoosejs.com/docs/api/query.html#Query.prototype.circle())
+ *
+ * **Deprecated.** Use [circle](https://mongoosejs.com/docs/api/query.html#Query.prototype.circle()) instead.
+ *
+ * @deprecated
+ * @method center
+ * @memberOf Query
+ * @instance
+ * @api public
+ */
+
+Query.prototype.center = Query.base.circle;
+
+/**
+ * _DEPRECATED_ Specifies a `$centerSphere` condition
+ *
+ * **Deprecated.** Use [circle](https://mongoosejs.com/docs/api/query.html#Query.prototype.circle()) instead.
+ *
+ * #### Example:
+ *
+ *     const area = { center: [50, 50], radius: 10 };
+ *     query.where('loc').within().centerSphere(area);
+ *
+ * @deprecated
+ * @param {String} [path]
+ * @param {Object} val
+ * @return {Query} this
+ * @see MongoDB Geospatial Indexing https://www.mongodb.com/docs/manual/core/geospatial-indexes/
+ * @see $centerSphere https://www.mongodb.com/docs/manual/reference/operator/centerSphere/
+ * @api public
+ */
+
+Query.prototype.centerSphere = function() {
+  if (arguments[0] != null && typeof arguments[0].constructor === 'function' && arguments[0].constructor.name === 'Object') {
+    arguments[0].spherical = true;
+  }
+
+  if (arguments[1] != null && typeof arguments[1].constructor === 'function' && arguments[1].constructor.name === 'Object') {
+    arguments[1].spherical = true;
+  }
+
+  Query.base.circle.apply(this, arguments);
+};
+
+/**
+ * Determines if field selection has been made.
+ *
+ * @method selected
+ * @memberOf Query
+ * @instance
+ * @return {Boolean}
+ * @api public
+ */
+
+/**
+ * Determines if inclusive field selection has been made.
+ *
+ *     query.selectedInclusively(); // false
+ *     query.select('name');
+ *     query.selectedInclusively(); // true
+ *
+ * @method selectedInclusively
+ * @memberOf Query
+ * @instance
+ * @return {Boolean}
+ * @api public
+ */
+
+Query.prototype.selectedInclusively = function selectedInclusively() {
+  return isInclusive(this._fields);
+};
+
+/**
+ * Determines if exclusive field selection has been made.
+ *
+ *     query.selectedExclusively(); // false
+ *     query.select('-name');
+ *     query.selectedExclusively(); // true
+ *     query.selectedInclusively(); // false
+ *
+ * @method selectedExclusively
+ * @memberOf Query
+ * @instance
+ * @return {Boolean}
+ * @api public
+ */
+
+Query.prototype.selectedExclusively = function selectedExclusively() {
+  return isExclusive(this._fields);
+};
+
+/**
+ * The model this query is associated with.
+ *
+ * #### Example:
+ *
+ *     const q = MyModel.find();
+ *     q.model === MyModel; // true
+ *
+ * @api public
+ * @property model
+ * @memberOf Query
+ * @instance
+ */
+
+Query.prototype.model;
+
+/*!
+ * Export
+ */
+
+module.exports = Query;
diff --git a/backend/node_modules/mongoose/lib/queryHelpers.js b/backend/node_modules/mongoose/lib/queryHelpers.js
new file mode 100644
index 0000000..0a6ae5e
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/queryHelpers.js
@@ -0,0 +1,390 @@
+'use strict';
+
+/*!
+ * Module dependencies
+ */
+
+const PopulateOptions = require('./options/populateOptions');
+const checkEmbeddedDiscriminatorKeyProjection =
+  require('./helpers/discriminator/checkEmbeddedDiscriminatorKeyProjection');
+const get = require('./helpers/get');
+const getDiscriminatorByValue =
+  require('./helpers/discriminator/getDiscriminatorByValue');
+const isDefiningProjection = require('./helpers/projection/isDefiningProjection');
+const clone = require('./helpers/clone');
+const isPathSelectedInclusive = require('./helpers/projection/isPathSelectedInclusive');
+
+/**
+ * Prepare a set of path options for query population. This is the MongooseQuery
+ * version
+ *
+ * @param {Query} query
+ * @param {Object} options
+ * @return {Array}
+ */
+
+exports.preparePopulationOptionsMQ = function preparePopulationOptionsMQ(query, options) {
+  const _populate = query._mongooseOptions.populate;
+  const pop = Object.keys(_populate).reduce((vals, key) => vals.concat([_populate[key]]), []);
+
+  // lean options should trickle through all queries
+  if (options.lean != null) {
+    pop
+      .filter(p => (p && p.options && p.options.lean) == null)
+      .forEach(makeLean(options.lean));
+  }
+
+  const session = query && query.options && query.options.session || null;
+  if (session != null) {
+    pop.forEach(path => {
+      if (path.options == null) {
+        path.options = { session: session };
+        return;
+      }
+      if (!('session' in path.options)) {
+        path.options.session = session;
+      }
+    });
+  }
+
+  const projection = query._fieldsForExec();
+  for (let i = 0; i < pop.length; ++i) {
+    if (pop[i] instanceof PopulateOptions) {
+      pop[i] = new PopulateOptions({
+        ...pop[i],
+        _queryProjection: projection,
+        _localModel: query.model
+      });
+    } else {
+      pop[i]._queryProjection = projection;
+      pop[i]._localModel = query.model;
+    }
+  }
+
+  return pop;
+};
+
+/**
+ * If the document is a mapped discriminator type, it returns a model instance for that type, otherwise,
+ * it returns an instance of the given model.
+ *
+ * @param {Model}  model
+ * @param {Object} doc
+ * @param {Object} fields
+ *
+ * @return {Document}
+ */
+exports.createModel = function createModel(model, doc, fields, userProvidedFields, options) {
+  model.hooks.execPreSync('createModel', doc);
+  const discriminatorMapping = model.schema ?
+    model.schema.discriminatorMapping :
+    null;
+
+  const key = discriminatorMapping && discriminatorMapping.isRoot ?
+    discriminatorMapping.key :
+    null;
+
+  const value = doc[key];
+  if (key && value && model.discriminators) {
+    const discriminator = model.discriminators[value] || getDiscriminatorByValue(model.discriminators, value);
+    if (discriminator) {
+      const _fields = clone(userProvidedFields);
+      exports.applyPaths(_fields, discriminator.schema);
+      return new discriminator(undefined, _fields, true);
+    }
+  }
+
+  const _opts = {
+    skipId: true,
+    isNew: false,
+    willInit: true
+  };
+  if (options != null && 'defaults' in options) {
+    _opts.defaults = options.defaults;
+  }
+  return new model(undefined, fields, _opts);
+};
+
+/*!
+ * ignore
+ */
+
+exports.createModelAndInit = function createModelAndInit(model, doc, fields, userProvidedFields, options, populatedIds, callback) {
+  const initOpts = populatedIds ?
+    { populated: populatedIds } :
+    undefined;
+
+  const casted = exports.createModel(model, doc, fields, userProvidedFields, options);
+  try {
+    casted.$init(doc, initOpts, callback);
+  } catch (error) {
+    callback(error, casted);
+  }
+};
+
+/*!
+ * ignore
+ */
+
+exports.applyPaths = function applyPaths(fields, schema, sanitizeProjection) {
+  // determine if query is selecting or excluding fields
+  let exclude;
+  let keys;
+  const minusPathsToSkip = new Set();
+
+  if (fields) {
+    keys = Object.keys(fields);
+
+    // Collapse minus paths
+    const minusPaths = [];
+    for (let i = 0; i < keys.length; ++i) {
+      const key = keys[i];
+      if (keys[i][0] !== '-') {
+        continue;
+      }
+
+      delete fields[key];
+      if (key === '-_id') {
+        fields['_id'] = 0;
+      } else {
+        minusPaths.push(key.slice(1));
+      }
+    }
+
+    keys = Object.keys(fields);
+    for (let keyIndex = 0; keyIndex < keys.length; ++keyIndex) {
+      if (keys[keyIndex][0] === '+') {
+        continue;
+      }
+      const field = fields[keys[keyIndex]];
+      // Skip `$meta` and `$slice`
+      if (!isDefiningProjection(field)) {
+        continue;
+      }
+      if (keys[keyIndex] === '_id' && keys.length > 1) {
+        continue;
+      }
+      if (keys[keyIndex] === schema.options.discriminatorKey && keys.length > 1 && field != null && !field) {
+        continue;
+      }
+      exclude = !field;
+      break;
+    }
+
+    // Potentially add back minus paths based on schema-level path config
+    // and whether the projection is inclusive
+    for (const path of minusPaths) {
+      const type = schema.path(path);
+      // If the path isn't selected by default or the projection is not
+      // inclusive, minus path is treated as equivalent to `key: 0`.
+      // But we also allow using `-name` to remove `name` from an inclusive
+      // projection if `name` has schema-level `select: true`.
+      if ((!type || !type.selected) || exclude !== false) {
+        fields[path] = 0;
+        exclude = true;
+      } else if (type && type.selected && exclude === false) {
+        // Make a note of minus paths that are overwriting paths that are
+        // included by default.
+        minusPathsToSkip.add(path);
+      }
+    }
+  }
+
+  // if selecting, apply default schematype select:true fields
+  // if excluding, apply schematype select:false fields
+  const selected = [];
+  const excluded = [];
+  const stack = [];
+
+  analyzeSchema(schema);
+  switch (exclude) {
+    case true:
+      for (const fieldName of excluded) {
+        fields[fieldName] = 0;
+      }
+      break;
+    case false:
+      if (schema &&
+          schema.paths['_id'] &&
+          schema.paths['_id'].options &&
+          schema.paths['_id'].options.select === false) {
+        fields._id = 0;
+      }
+
+      for (const fieldName of selected) {
+        if (minusPathsToSkip.has(fieldName)) {
+          continue;
+        }
+        if (isPathSelectedInclusive(fields, fieldName)) {
+          continue;
+        }
+        fields[fieldName] = fields[fieldName] || 1;
+      }
+      break;
+    case undefined:
+      if (fields == null) {
+        break;
+      }
+      // Any leftover plus paths must in the schema, so delete them (gh-7017)
+      for (const key of Object.keys(fields || {})) {
+        if (key.startsWith('+')) {
+          delete fields[key];
+        }
+      }
+
+      // user didn't specify fields, implies returning all fields.
+      // only need to apply excluded fields and delete any plus paths
+      for (const fieldName of excluded) {
+        if (fields[fieldName] != null) {
+          // Skip applying default projections to fields with non-defining
+          // projections, like `$slice`
+          continue;
+        }
+        fields[fieldName] = 0;
+      }
+      break;
+  }
+
+  function analyzeSchema(schema, prefix) {
+    prefix || (prefix = '');
+
+    // avoid recursion
+    if (stack.indexOf(schema) !== -1) {
+      return [];
+    }
+    stack.push(schema);
+
+    const addedPaths = [];
+    schema.eachPath(function(path, type) {
+      if (prefix) path = prefix + '.' + path;
+      if (type.$isSchemaMap || path.endsWith('.$*')) {
+        const plusPath = '+' + path;
+        const hasPlusPath = fields && plusPath in fields;
+        if (type.options && type.options.select === false && !hasPlusPath) {
+          excluded.push(path);
+        }
+        return;
+      }
+      let addedPath = analyzePath(path, type);
+      // arrays
+      if (addedPath == null && !Array.isArray(type) && type.$isMongooseArray && !type.$isMongooseDocumentArray) {
+        addedPath = analyzePath(path, type.caster);
+      }
+      if (addedPath != null) {
+        addedPaths.push(addedPath);
+      }
+
+      // nested schemas
+      if (type.schema) {
+        const _addedPaths = analyzeSchema(type.schema, path);
+
+        // Special case: if discriminator key is the only field that would
+        // be projected in, remove it.
+        if (exclude === false) {
+          checkEmbeddedDiscriminatorKeyProjection(fields, path, type.schema,
+            selected, _addedPaths);
+        }
+      }
+    });
+    stack.pop();
+    return addedPaths;
+  }
+
+  function analyzePath(path, type) {
+    if (fields == null) {
+      return;
+    }
+
+    // If schema-level selected not set, nothing to do
+    if (typeof type.selected !== 'boolean') {
+      return;
+    }
+
+    // User overwriting default exclusion
+    if (type.selected === false && fields[path]) {
+      if (sanitizeProjection) {
+        fields[path] = 0;
+      }
+
+      return;
+    }
+
+    // If set to 0, we're explicitly excluding the discriminator key. Can't do this for all fields,
+    // because we have tests that assert that using `-path` to exclude schema-level `select: true`
+    // fields counts as an exclusive projection. See gh-11546
+    if (!exclude && type.selected && path === schema.options.discriminatorKey && fields[path] != null && !fields[path]) {
+      delete fields[path];
+      return;
+    }
+
+    if (exclude === false && type.selected && fields[path] != null && !fields[path]) {
+      delete fields[path];
+      return;
+    }
+
+    const plusPath = '+' + path;
+    const hasPlusPath = fields && plusPath in fields;
+    if (hasPlusPath) {
+      // forced inclusion
+      delete fields[plusPath];
+
+      // if there are other fields being included, add this one
+      // if no other included fields, leave this out (implied inclusion)
+      if (exclude === false && keys.length > 1 && !~keys.indexOf(path) && !sanitizeProjection) {
+        fields[path] = 1;
+      } else if (exclude == null && sanitizeProjection && type.selected === false) {
+        fields[path] = 0;
+      }
+
+      return;
+    }
+
+    // check for parent exclusions
+    const pieces = path.split('.');
+    let cur = '';
+    for (let i = 0; i < pieces.length; ++i) {
+      cur += cur.length ? '.' + pieces[i] : pieces[i];
+      if (excluded.indexOf(cur) !== -1) {
+        return;
+      }
+    }
+
+    // Special case: if user has included a parent path of a discriminator key,
+    // don't explicitly project in the discriminator key because that will
+    // project out everything else under the parent path
+    if (!exclude && (type && type.options && type.options.$skipDiscriminatorCheck || false)) {
+      let cur = '';
+      for (let i = 0; i < pieces.length; ++i) {
+        cur += (cur.length === 0 ? '' : '.') + pieces[i];
+        const projection = get(fields, cur, false) || get(fields, cur + '.$', false);
+        if (projection && typeof projection !== 'object') {
+          return;
+        }
+      }
+    }
+
+    (type.selected ? selected : excluded).push(path);
+    return path;
+  }
+};
+
+/**
+ * Set each path query option to lean
+ *
+ * @param {Object} option
+ */
+
+function makeLean(val) {
+  return function(option) {
+    option.options || (option.options = {});
+
+    if (val != null && Array.isArray(val.virtuals)) {
+      val = Object.assign({}, val);
+      val.virtuals = val.virtuals.
+        filter(path => typeof path === 'string' && path.startsWith(option.path + '.')).
+        map(path => path.slice(option.path.length + 1));
+    }
+
+    option.options.lean = val;
+  };
+}
diff --git a/backend/node_modules/mongoose/lib/schema.js b/backend/node_modules/mongoose/lib/schema.js
new file mode 100644
index 0000000..9f27e2c
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema.js
@@ -0,0 +1,2930 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const EventEmitter = require('events').EventEmitter;
+const Kareem = require('kareem');
+const MongooseError = require('./error/mongooseError');
+const SchemaType = require('./schemaType');
+const SchemaTypeOptions = require('./options/schemaTypeOptions');
+const VirtualOptions = require('./options/virtualOptions');
+const VirtualType = require('./virtualType');
+const addAutoId = require('./helpers/schema/addAutoId');
+const clone = require('./helpers/clone');
+const get = require('./helpers/get');
+const getConstructorName = require('./helpers/getConstructorName');
+const getIndexes = require('./helpers/schema/getIndexes');
+const handleReadPreferenceAliases = require('./helpers/query/handleReadPreferenceAliases');
+const idGetter = require('./helpers/schema/idGetter');
+const isIndexSpecEqual = require('./helpers/indexes/isIndexSpecEqual');
+const merge = require('./helpers/schema/merge');
+const mpath = require('mpath');
+const setPopulatedVirtualValue = require('./helpers/populate/setPopulatedVirtualValue');
+const setupTimestamps = require('./helpers/timestamps/setupTimestamps');
+const utils = require('./utils');
+const validateRef = require('./helpers/populate/validateRef');
+
+const hasNumericSubpathRegex = /\.\d+(\.|$)/;
+
+let MongooseTypes;
+
+const queryHooks = require('./constants').queryMiddlewareFunctions;
+const documentHooks = require('./helpers/model/applyHooks').middlewareFunctions;
+const hookNames = queryHooks.concat(documentHooks).
+  reduce((s, hook) => s.add(hook), new Set());
+
+const isPOJO = utils.isPOJO;
+
+let id = 0;
+
+const numberRE = /^\d+$/;
+
+/**
+ * Schema constructor.
+ *
+ * #### Example:
+ *
+ *     const child = new Schema({ name: String });
+ *     const schema = new Schema({ name: String, age: Number, children: [child] });
+ *     const Tree = mongoose.model('Tree', schema);
+ *
+ *     // setting schema options
+ *     new Schema({ name: String }, { id: false, autoIndex: false })
+ *
+ * #### Options:
+ *
+ * - [autoIndex](https://mongoosejs.com/docs/guide.html#autoIndex): bool - defaults to null (which means use the connection's autoIndex option)
+ * - [autoCreate](https://mongoosejs.com/docs/guide.html#autoCreate): bool - defaults to null (which means use the connection's autoCreate option)
+ * - [bufferCommands](https://mongoosejs.com/docs/guide.html#bufferCommands): bool - defaults to true
+ * - [bufferTimeoutMS](https://mongoosejs.com/docs/guide.html#bufferTimeoutMS): number - defaults to 10000 (10 seconds). If `bufferCommands` is enabled, the amount of time Mongoose will wait for connectivity to be restablished before erroring out.
+ * - [capped](https://mongoosejs.com/docs/guide.html#capped): bool | number | object - defaults to false
+ * - [collection](https://mongoosejs.com/docs/guide.html#collection): string - no default
+ * - [discriminatorKey](https://mongoosejs.com/docs/guide.html#discriminatorKey): string - defaults to `__t`
+ * - [id](https://mongoosejs.com/docs/guide.html#id): bool - defaults to true
+ * - [_id](https://mongoosejs.com/docs/guide.html#_id): bool - defaults to true
+ * - [minimize](https://mongoosejs.com/docs/guide.html#minimize): bool - controls [document#toObject](https://mongoosejs.com/docs/api/document.html#Document.prototype.toObject()) behavior when called manually - defaults to true
+ * - [read](https://mongoosejs.com/docs/guide.html#read): string
+ * - [readConcern](https://mongoosejs.com/docs/guide.html#readConcern): object - defaults to null, use to set a default [read concern](https://www.mongodb.com/docs/manual/reference/read-concern/) for all queries.
+ * - [writeConcern](https://mongoosejs.com/docs/guide.html#writeConcern): object - defaults to null, use to override [the MongoDB server's default write concern settings](https://www.mongodb.com/docs/manual/reference/write-concern/)
+ * - [shardKey](https://mongoosejs.com/docs/guide.html#shardKey): object - defaults to `null`
+ * - [strict](https://mongoosejs.com/docs/guide.html#strict): bool - defaults to true
+ * - [strictQuery](https://mongoosejs.com/docs/guide.html#strictQuery): bool - defaults to false
+ * - [toJSON](https://mongoosejs.com/docs/guide.html#toJSON) - object - no default
+ * - [toObject](https://mongoosejs.com/docs/guide.html#toObject) - object - no default
+ * - [typeKey](https://mongoosejs.com/docs/guide.html#typeKey) - string - defaults to 'type'
+ * - [validateBeforeSave](https://mongoosejs.com/docs/guide.html#validateBeforeSave) - bool - defaults to `true`
+ * - [validateModifiedOnly](https://mongoosejs.com/docs/api/document.html#Document.prototype.validate()) - bool - defaults to `false`
+ * - [versionKey](https://mongoosejs.com/docs/guide.html#versionKey): string or object - defaults to "__v"
+ * - [optimisticConcurrency](https://mongoosejs.com/docs/guide.html#optimisticConcurrency): bool - defaults to false. Set to true to enable [optimistic concurrency](https://thecodebarbarian.com/whats-new-in-mongoose-5-10-optimistic-concurrency.html).
+ * - [collation](https://mongoosejs.com/docs/guide.html#collation): object - defaults to null (which means use no collation)
+ * - [timeseries](https://mongoosejs.com/docs/guide.html#timeseries): object - defaults to null (which means this schema's collection won't be a timeseries collection)
+ * - [selectPopulatedPaths](https://mongoosejs.com/docs/guide.html#selectPopulatedPaths): boolean - defaults to `true`
+ * - [skipVersioning](https://mongoosejs.com/docs/guide.html#skipVersioning): object - paths to exclude from versioning
+ * - [timestamps](https://mongoosejs.com/docs/guide.html#timestamps): object or boolean - defaults to `false`. If true, Mongoose adds `createdAt` and `updatedAt` properties to your schema and manages those properties for you.
+ * - [pluginTags](https://mongoosejs.com/docs/guide.html#pluginTags): array of strings - defaults to `undefined`. If set and plugin called with `tags` option, will only apply that plugin to schemas with a matching tag.
+ * - [virtuals](https://mongoosejs.com/docs/tutorials/virtuals.html#virtuals-via-schema-options): object - virtuals to define, alias for [`.virtual`](https://mongoosejs.com/docs/api/schema.html#Schema.prototype.virtual())
+ * - [collectionOptions]: object with options passed to [`createCollection()`](https://www.mongodb.com/docs/manual/reference/method/db.createCollection/) when calling `Model.createCollection()` or `autoCreate` set to true.
+ *
+ * #### Options for Nested Schemas:
+ *
+ * - `excludeIndexes`: bool - defaults to `false`. If `true`, skip building indexes on this schema's paths.
+ *
+ * #### Note:
+ *
+ * _When nesting schemas, (`children` in the example above), always declare the child schema first before passing it into its parent._
+ *
+ * @param {Object|Schema|Array} [definition] Can be one of: object describing schema paths, or schema to copy, or array of objects and schemas
+ * @param {Object} [options]
+ * @inherits NodeJS EventEmitter https://nodejs.org/api/events.html#class-eventemitter
+ * @event `init`: Emitted after the schema is compiled into a `Model`.
+ * @api public
+ */
+
+function Schema(obj, options) {
+  if (!(this instanceof Schema)) {
+    return new Schema(obj, options);
+  }
+
+  this.obj = obj;
+  this.paths = {};
+  this.aliases = {};
+  this.subpaths = {};
+  this.virtuals = {};
+  this.singleNestedPaths = {};
+  this.nested = {};
+  this.inherits = {};
+  this.callQueue = [];
+  this._indexes = [];
+  this._searchIndexes = [];
+  this.methods = (options && options.methods) || {};
+  this.methodOptions = {};
+  this.statics = (options && options.statics) || {};
+  this.tree = {};
+  this.query = (options && options.query) || {};
+  this.childSchemas = [];
+  this.plugins = [];
+  // For internal debugging. Do not use this to try to save a schema in MDB.
+  this.$id = ++id;
+  this.mapPaths = [];
+
+  this.s = {
+    hooks: new Kareem()
+  };
+  this.options = this.defaultOptions(options);
+
+  // build paths
+  if (Array.isArray(obj)) {
+    for (const definition of obj) {
+      this.add(definition);
+    }
+  } else if (obj) {
+    this.add(obj);
+  }
+
+  // build virtual paths
+  if (options && options.virtuals) {
+    const virtuals = options.virtuals;
+    const pathNames = Object.keys(virtuals);
+    for (const pathName of pathNames) {
+      const pathOptions = virtuals[pathName].options ? virtuals[pathName].options : undefined;
+      const virtual = this.virtual(pathName, pathOptions);
+
+      if (virtuals[pathName].get) {
+        virtual.get(virtuals[pathName].get);
+      }
+
+      if (virtuals[pathName].set) {
+        virtual.set(virtuals[pathName].set);
+      }
+    }
+  }
+
+  // check if _id's value is a subdocument (gh-2276)
+  const _idSubDoc = obj && obj._id && utils.isObject(obj._id);
+
+  // ensure the documents get an auto _id unless disabled
+  const auto_id = !this.paths['_id'] &&
+      (this.options._id) && !_idSubDoc;
+
+  if (auto_id) {
+    addAutoId(this);
+  }
+
+  this.setupTimestamp(this.options.timestamps);
+}
+
+/**
+ * Create virtual properties with alias field
+ * @api private
+ */
+function aliasFields(schema, paths) {
+  for (const path of Object.keys(paths)) {
+    let alias = null;
+    if (paths[path] != null) {
+      alias = paths[path];
+    } else {
+      const options = get(schema.paths[path], 'options');
+      if (options == null) {
+        continue;
+      }
+
+      alias = options.alias;
+    }
+
+    if (!alias) {
+      continue;
+    }
+
+    const prop = schema.paths[path].path;
+    if (Array.isArray(alias)) {
+      for (const a of alias) {
+        if (typeof a !== 'string') {
+          throw new Error('Invalid value for alias option on ' + prop + ', got ' + a);
+        }
+
+        schema.aliases[a] = prop;
+
+        schema.
+          virtual(a).
+          get((function(p) {
+            return function() {
+              if (typeof this.get === 'function') {
+                return this.get(p);
+              }
+              return this[p];
+            };
+          })(prop)).
+          set((function(p) {
+            return function(v) {
+              return this.$set(p, v);
+            };
+          })(prop));
+      }
+
+      continue;
+    }
+
+    if (typeof alias !== 'string') {
+      throw new Error('Invalid value for alias option on ' + prop + ', got ' + alias);
+    }
+
+    schema.aliases[alias] = prop;
+
+    schema.
+      virtual(alias).
+      get((function(p) {
+        return function() {
+          if (typeof this.get === 'function') {
+            return this.get(p);
+          }
+          return this[p];
+        };
+      })(prop)).
+      set((function(p) {
+        return function(v) {
+          return this.$set(p, v);
+        };
+      })(prop));
+  }
+}
+
+/*!
+ * Inherit from EventEmitter.
+ */
+Schema.prototype = Object.create(EventEmitter.prototype);
+Schema.prototype.constructor = Schema;
+Schema.prototype.instanceOfSchema = true;
+
+/*!
+ * ignore
+ */
+
+Object.defineProperty(Schema.prototype, '$schemaType', {
+  configurable: false,
+  enumerable: false,
+  writable: true
+});
+
+/**
+ * Array of child schemas (from document arrays and single nested subdocs)
+ * and their corresponding compiled models. Each element of the array is
+ * an object with 2 properties: `schema` and `model`.
+ *
+ * This property is typically only useful for plugin authors and advanced users.
+ * You do not need to interact with this property at all to use mongoose.
+ *
+ * @api public
+ * @property childSchemas
+ * @memberOf Schema
+ * @instance
+ */
+
+Object.defineProperty(Schema.prototype, 'childSchemas', {
+  configurable: false,
+  enumerable: true,
+  writable: true
+});
+
+/**
+ * Object containing all virtuals defined on this schema.
+ * The objects' keys are the virtual paths and values are instances of `VirtualType`.
+ *
+ * This property is typically only useful for plugin authors and advanced users.
+ * You do not need to interact with this property at all to use mongoose.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({});
+ *     schema.virtual('answer').get(() => 42);
+ *
+ *     console.log(schema.virtuals); // { answer: VirtualType { path: 'answer', ... } }
+ *     console.log(schema.virtuals['answer'].getters[0].call()); // 42
+ *
+ * @api public
+ * @property virtuals
+ * @memberOf Schema
+ * @instance
+ */
+
+Object.defineProperty(Schema.prototype, 'virtuals', {
+  configurable: false,
+  enumerable: true,
+  writable: true
+});
+
+/**
+ * The original object passed to the schema constructor
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ a: String }).add({ b: String });
+ *     schema.obj; // { a: String }
+ *
+ * @api public
+ * @property obj
+ * @memberOf Schema
+ * @instance
+ */
+
+Schema.prototype.obj;
+
+/**
+ * The paths defined on this schema. The keys are the top-level paths
+ * in this schema, and the values are instances of the SchemaType class.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ name: String }, { _id: false });
+ *     schema.paths; // { name: SchemaString { ... } }
+ *
+ *     schema.add({ age: Number });
+ *     schema.paths; // { name: SchemaString { ... }, age: SchemaNumber { ... } }
+ *
+ * @api public
+ * @property paths
+ * @memberOf Schema
+ * @instance
+ */
+
+Schema.prototype.paths;
+
+/**
+ * Schema as a tree
+ *
+ * #### Example:
+ *
+ *     {
+ *         '_id'     : ObjectId
+ *       , 'nested'  : {
+ *             'key' : String
+ *         }
+ *     }
+ *
+ * @api private
+ * @property tree
+ * @memberOf Schema
+ * @instance
+ */
+
+Schema.prototype.tree;
+
+/**
+ * Returns a deep copy of the schema
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ name: String });
+ *     const clone = schema.clone();
+ *     clone === schema; // false
+ *     clone.path('name'); // SchemaString { ... }
+ *
+ * @return {Schema} the cloned schema
+ * @api public
+ * @memberOf Schema
+ * @instance
+ */
+
+Schema.prototype.clone = function() {
+  const s = this._clone();
+
+  // Bubble up `init` for backwards compat
+  s.on('init', v => this.emit('init', v));
+
+  return s;
+};
+
+/*!
+ * ignore
+ */
+
+Schema.prototype._clone = function _clone(Constructor) {
+  Constructor = Constructor || (this.base == null ? Schema : this.base.Schema);
+
+  const s = new Constructor({}, this._userProvidedOptions);
+  s.base = this.base;
+  s.obj = this.obj;
+  s.options = clone(this.options);
+  s.callQueue = this.callQueue.map(function(f) { return f; });
+  s.methods = clone(this.methods);
+  s.methodOptions = clone(this.methodOptions);
+  s.statics = clone(this.statics);
+  s.query = clone(this.query);
+  s.plugins = Array.prototype.slice.call(this.plugins);
+  s._indexes = clone(this._indexes);
+  s._searchIndexes = clone(this._searchIndexes);
+  s.s.hooks = this.s.hooks.clone();
+
+  s.tree = clone(this.tree);
+  s.paths = Object.fromEntries(
+    Object.entries(this.paths).map(([key, value]) => ([key, value.clone()]))
+  );
+  s.nested = clone(this.nested);
+  s.subpaths = clone(this.subpaths);
+  for (const schemaType of Object.values(s.paths)) {
+    if (schemaType.$isSingleNested) {
+      const path = schemaType.path;
+      for (const key of Object.keys(schemaType.schema.paths)) {
+        s.singleNestedPaths[path + '.' + key] = schemaType.schema.paths[key];
+      }
+      for (const key of Object.keys(schemaType.schema.singleNestedPaths)) {
+        s.singleNestedPaths[path + '.' + key] =
+          schemaType.schema.singleNestedPaths[key];
+      }
+      for (const key of Object.keys(schemaType.schema.subpaths)) {
+        s.singleNestedPaths[path + '.' + key] =
+          schemaType.schema.subpaths[key];
+      }
+      for (const key of Object.keys(schemaType.schema.nested)) {
+        s.singleNestedPaths[path + '.' + key] = 'nested';
+      }
+    }
+  }
+  s._gatherChildSchemas();
+
+  s.virtuals = clone(this.virtuals);
+  s.$globalPluginsApplied = this.$globalPluginsApplied;
+  s.$isRootDiscriminator = this.$isRootDiscriminator;
+  s.$implicitlyCreated = this.$implicitlyCreated;
+  s.$id = ++id;
+  s.$originalSchemaId = this.$id;
+  s.mapPaths = [].concat(this.mapPaths);
+
+  if (this.discriminatorMapping != null) {
+    s.discriminatorMapping = Object.assign({}, this.discriminatorMapping);
+  }
+  if (this.discriminators != null) {
+    s.discriminators = Object.assign({}, this.discriminators);
+  }
+  if (this._applyDiscriminators != null) {
+    s._applyDiscriminators = new Map(this._applyDiscriminators);
+  }
+
+  s.aliases = Object.assign({}, this.aliases);
+
+  return s;
+};
+
+/**
+ * Returns a new schema that has the picked `paths` from this schema.
+ *
+ * This method is analagous to [Lodash's `pick()` function](https://lodash.com/docs/4.17.15#pick) for Mongoose schemas.
+ *
+ * #### Example:
+ *
+ *     const schema = Schema({ name: String, age: Number });
+ *     // Creates a new schema with the same `name` path as `schema`,
+ *     // but no `age` path.
+ *     const newSchema = schema.pick(['name']);
+ *
+ *     newSchema.path('name'); // SchemaString { ... }
+ *     newSchema.path('age'); // undefined
+ *
+ * @param {String[]} paths List of Paths to pick for the new Schema
+ * @param {Object} [options] Options to pass to the new Schema Constructor (same as `new Schema(.., Options)`). Defaults to `this.options` if not set.
+ * @return {Schema}
+ * @api public
+ */
+
+Schema.prototype.pick = function(paths, options) {
+  const newSchema = new Schema({}, options || this.options);
+  if (!Array.isArray(paths)) {
+    throw new MongooseError('Schema#pick() only accepts an array argument, ' +
+      'got "' + typeof paths + '"');
+  }
+
+  for (const path of paths) {
+    if (this.nested[path]) {
+      newSchema.add({ [path]: get(this.tree, path) });
+    } else {
+      const schematype = this.path(path);
+      if (schematype == null) {
+        throw new MongooseError('Path `' + path + '` is not in the schema');
+      }
+      newSchema.add({ [path]: schematype });
+    }
+  }
+
+  return newSchema;
+};
+
+/**
+ * Returns a new schema that has the `paths` from the original schema, minus the omitted ones.
+ *
+ * This method is analagous to [Lodash's `omit()` function](https://lodash.com/docs/#omit) for Mongoose schemas.
+ *
+ * #### Example:
+ *
+ *     const schema = Schema({ name: String, age: Number });
+ *     // Creates a new schema omitting the `age` path
+ *     const newSchema = schema.omit(['age']);
+ *
+ *     newSchema.path('name'); // SchemaString { ... }
+ *     newSchema.path('age'); // undefined
+ *
+ * @param {String[]} paths List of Paths to omit for the new Schema
+ * @param {Object} [options] Options to pass to the new Schema Constructor (same as `new Schema(.., Options)`). Defaults to `this.options` if not set.
+ * @return {Schema}
+ * @api public
+ */
+
+Schema.prototype.omit = function(paths, options) {
+  const newSchema = new Schema(this, options || this.options);
+  if (!Array.isArray(paths)) {
+    throw new MongooseError(
+      'Schema#omit() only accepts an array argument, ' +
+        'got "' +
+        typeof paths +
+        '"'
+    );
+  }
+
+  newSchema.remove(paths);
+
+  for (const nested in newSchema.singleNestedPaths) {
+    if (paths.includes(nested)) {
+      delete newSchema.singleNestedPaths[nested];
+    }
+  }
+
+  return newSchema;
+};
+
+/**
+ * Returns default options for this schema, merged with `options`.
+ *
+ * @param {Object} [options] Options to overwrite the default options
+ * @return {Object} The merged options of `options` and the default options
+ * @api private
+ */
+
+Schema.prototype.defaultOptions = function(options) {
+  this._userProvidedOptions = options == null ? {} : clone(options);
+  const baseOptions = this.base && this.base.options || {};
+  const strict = 'strict' in baseOptions ? baseOptions.strict : true;
+  const strictQuery = 'strictQuery' in baseOptions ? baseOptions.strictQuery : false;
+  const id = 'id' in baseOptions ? baseOptions.id : true;
+  options = {
+    strict,
+    strictQuery,
+    bufferCommands: true,
+    capped: false, // { size, max, autoIndexId }
+    versionKey: '__v',
+    optimisticConcurrency: false,
+    minimize: true,
+    autoIndex: null,
+    discriminatorKey: '__t',
+    shardKey: null,
+    read: null,
+    validateBeforeSave: true,
+    validateModifiedOnly: false,
+    // the following are only applied at construction time
+    _id: true,
+    id: id,
+    typeKey: 'type',
+    ...options
+  };
+
+  if (options.versionKey && typeof options.versionKey !== 'string') {
+    throw new MongooseError('`versionKey` must be falsy or string, got `' + (typeof options.versionKey) + '`');
+  }
+
+  if (typeof options.read === 'string') {
+    options.read = handleReadPreferenceAliases(options.read);
+  } else if (Array.isArray(options.read) && typeof options.read[0] === 'string') {
+    options.read = {
+      mode: handleReadPreferenceAliases(options.read[0]),
+      tags: options.read[1]
+    };
+  }
+
+  if (options.optimisticConcurrency && !options.versionKey) {
+    throw new MongooseError('Must set `versionKey` if using `optimisticConcurrency`');
+  }
+
+  return options;
+};
+
+/**
+ * Inherit a Schema by applying a discriminator on an existing Schema.
+ *
+ *
+ * #### Example:
+ *
+ *     const eventSchema = new mongoose.Schema({ timestamp: Date }, { discriminatorKey: 'kind' });
+ *
+ *     const clickedEventSchema = new mongoose.Schema({ element: String }, { discriminatorKey: 'kind' });
+ *     const ClickedModel = eventSchema.discriminator('clicked', clickedEventSchema);
+ *
+ *     const Event = mongoose.model('Event', eventSchema);
+ *
+ *     Event.discriminators['clicked']; // Model { clicked }
+ *
+ *     const doc = await Event.create({ kind: 'clicked', element: '#hero' });
+ *     doc.element; // '#hero'
+ *     doc instanceof ClickedModel; // true
+ *
+ * @param {String} name the name of the discriminator
+ * @param {Schema} schema the discriminated Schema
+ * @param {Object} [options] discriminator options
+ * @param {String} [options.value] the string stored in the `discriminatorKey` property. If not specified, Mongoose uses the `name` parameter.
+ * @param {Boolean} [options.clone=true] By default, `discriminator()` clones the given `schema`. Set to `false` to skip cloning.
+ * @param {Boolean} [options.overwriteModels=false] by default, Mongoose does not allow you to define a discriminator with the same name as another discriminator. Set this to allow overwriting discriminators with the same name.
+ * @param {Boolean} [options.mergeHooks=true] By default, Mongoose merges the base schema's hooks with the discriminator schema's hooks. Set this option to `false` to make Mongoose use the discriminator schema's hooks instead.
+ * @param {Boolean} [options.mergePlugins=true] By default, Mongoose merges the base schema's plugins with the discriminator schema's plugins. Set this option to `false` to make Mongoose use the discriminator schema's plugins instead.
+ * @return {Schema} the Schema instance
+ * @api public
+ */
+Schema.prototype.discriminator = function(name, schema, options) {
+  this._applyDiscriminators = this._applyDiscriminators || new Map();
+  this._applyDiscriminators.set(name, { schema, options });
+
+  return this;
+};
+
+/*!
+ * Get this schema's default toObject/toJSON options, including Mongoose global
+ * options.
+ */
+
+Schema.prototype._defaultToObjectOptions = function(json) {
+  const path = json ? 'toJSON' : 'toObject';
+  if (this._defaultToObjectOptionsMap && this._defaultToObjectOptionsMap[path]) {
+    return this._defaultToObjectOptionsMap[path];
+  }
+
+  const baseOptions = this.base &&
+    this.base.options &&
+    this.base.options[path] || {};
+  const schemaOptions = this.options[path] || {};
+  // merge base default options with Schema's set default options if available.
+  // `clone` is necessary here because `utils.options` directly modifies the second input.
+  const defaultOptions = Object.assign({}, baseOptions, schemaOptions);
+
+  this._defaultToObjectOptionsMap = this._defaultToObjectOptionsMap || {};
+  this._defaultToObjectOptionsMap[path] = defaultOptions;
+  return defaultOptions;
+};
+
+/**
+ * Adds key path / schema type pairs to this schema.
+ *
+ * #### Example:
+ *
+ *     const ToySchema = new Schema();
+ *     ToySchema.add({ name: 'string', color: 'string', price: 'number' });
+ *
+ *     const TurboManSchema = new Schema();
+ *     // You can also `add()` another schema and copy over all paths, virtuals,
+ *     // getters, setters, indexes, methods, and statics.
+ *     TurboManSchema.add(ToySchema).add({ year: Number });
+ *
+ * @param {Object|Schema} obj plain object with paths to add, or another schema
+ * @param {String} [prefix] path to prefix the newly added paths with
+ * @return {Schema} the Schema instance
+ * @api public
+ */
+
+Schema.prototype.add = function add(obj, prefix) {
+  if (obj instanceof Schema || (obj != null && obj.instanceOfSchema)) {
+    merge(this, obj);
+
+    return this;
+  }
+
+  // Special case: setting top-level `_id` to false should convert to disabling
+  // the `_id` option. This behavior never worked before 5.4.11 but numerous
+  // codebases use it (see gh-7516, gh-7512).
+  if (obj._id === false && prefix == null) {
+    this.options._id = false;
+  }
+
+  prefix = prefix || '';
+  // avoid prototype pollution
+  if (prefix === '__proto__.' || prefix === 'constructor.' || prefix === 'prototype.') {
+    return this;
+  }
+
+  const keys = Object.keys(obj);
+  const typeKey = this.options.typeKey;
+  for (const key of keys) {
+    if (utils.specialProperties.has(key)) {
+      continue;
+    }
+
+    const fullPath = prefix + key;
+    const val = obj[key];
+
+    if (val == null) {
+      throw new TypeError('Invalid value for schema path `' + fullPath +
+        '`, got value "' + val + '"');
+    }
+    // Retain `_id: false` but don't set it as a path, re: gh-8274.
+    if (key === '_id' && val === false) {
+      continue;
+    }
+    // Deprecate setting schema paths to primitive types (gh-7558)
+    let isMongooseTypeString = false;
+    if (typeof val === 'string') {
+      // Handle the case in which the type is specified as a string (eg. 'date', 'oid', ...)
+      const MongooseTypes = this.base != null ? this.base.Schema.Types : Schema.Types;
+      const upperVal = val.charAt(0).toUpperCase() + val.substring(1);
+      isMongooseTypeString = MongooseTypes[upperVal] != null;
+    }
+    if (
+      key !== '_id' &&
+      ((typeof val !== 'object' && typeof val !== 'function' && !isMongooseTypeString) ||
+      val == null)
+    ) {
+      throw new TypeError(`Invalid schema configuration: \`${val}\` is not ` +
+        `a valid type at path \`${key}\`. See ` +
+        'https://bit.ly/mongoose-schematypes for a list of valid schema types.');
+    }
+    if (val instanceof VirtualType || (val.constructor && val.constructor.name || null) === 'VirtualType') {
+      this.virtual(val);
+      continue;
+    }
+
+    if (Array.isArray(val) && val.length === 1 && val[0] == null) {
+      throw new TypeError('Invalid value for schema Array path `' + fullPath +
+        '`, got value "' + val[0] + '"');
+    }
+
+    if (!(isPOJO(val) || val instanceof SchemaTypeOptions)) {
+      // Special-case: Non-options definitely a path so leaf at this node
+      // Examples: Schema instances, SchemaType instances
+      if (prefix) {
+        this.nested[prefix.substring(0, prefix.length - 1)] = true;
+      }
+      this.path(prefix + key, val);
+      if (val[0] != null && !(val[0].instanceOfSchema) && utils.isPOJO(val[0].discriminators)) {
+        const schemaType = this.path(prefix + key);
+        for (const key in val[0].discriminators) {
+          schemaType.discriminator(key, val[0].discriminators[key]);
+        }
+      }
+    } else if (Object.keys(val).length < 1) {
+      // Special-case: {} always interpreted as Mixed path so leaf at this node
+      if (prefix) {
+        this.nested[prefix.substring(0, prefix.length - 1)] = true;
+      }
+      this.path(fullPath, val); // mixed type
+    } else if (!val[typeKey] || (typeKey === 'type' && isPOJO(val.type) && val.type.type)) {
+      // Special-case: POJO with no bona-fide type key - interpret as tree of deep paths so recurse
+      // nested object `{ last: { name: String } }`. Avoid functions with `.type` re: #10807 because
+      // NestJS sometimes adds `Date.type`.
+      this.nested[fullPath] = true;
+      this.add(val, fullPath + '.');
+    } else {
+      // There IS a bona-fide type key that may also be a POJO
+      const _typeDef = val[typeKey];
+      if (isPOJO(_typeDef) && Object.keys(_typeDef).length > 0) {
+        // If a POJO is the value of a type key, make it a subdocument
+        if (prefix) {
+          this.nested[prefix.substring(0, prefix.length - 1)] = true;
+        }
+
+        const childSchemaOptions = {};
+        if (this._userProvidedOptions.typeKey) {
+          childSchemaOptions.typeKey = this._userProvidedOptions.typeKey;
+        }
+        // propagate 'strict' option to child schema
+        if (this._userProvidedOptions.strict != null) {
+          childSchemaOptions.strict = this._userProvidedOptions.strict;
+        }
+        if (this._userProvidedOptions.toObject != null) {
+          childSchemaOptions.toObject = utils.omit(this._userProvidedOptions.toObject, ['transform']);
+        }
+        if (this._userProvidedOptions.toJSON != null) {
+          childSchemaOptions.toJSON = utils.omit(this._userProvidedOptions.toJSON, ['transform']);
+        }
+
+        const _schema = new Schema(_typeDef, childSchemaOptions);
+        _schema.$implicitlyCreated = true;
+        const schemaWrappedPath = Object.assign({}, val, { [typeKey]: _schema });
+        this.path(prefix + key, schemaWrappedPath);
+      } else {
+        // Either the type is non-POJO or we interpret it as Mixed anyway
+        if (prefix) {
+          this.nested[prefix.substring(0, prefix.length - 1)] = true;
+        }
+        this.path(prefix + key, val);
+        if (val != null && !(val.instanceOfSchema) && utils.isPOJO(val.discriminators)) {
+          const schemaType = this.path(prefix + key);
+          for (const key in val.discriminators) {
+            schemaType.discriminator(key, val.discriminators[key]);
+          }
+        }
+      }
+    }
+  }
+
+  const aliasObj = Object.fromEntries(
+    Object.entries(obj).map(([key]) => ([prefix + key, null]))
+  );
+  aliasFields(this, aliasObj);
+  return this;
+};
+
+/**
+ * Add an alias for `path`. This means getting or setting the `alias`
+ * is equivalent to getting or setting the `path`.
+ *
+ * #### Example:
+ *
+ *     const toySchema = new Schema({ n: String });
+ *
+ *     // Make 'name' an alias for 'n'
+ *     toySchema.alias('n', 'name');
+ *
+ *     const Toy = mongoose.model('Toy', toySchema);
+ *     const turboMan = new Toy({ n: 'Turbo Man' });
+ *
+ *     turboMan.name; // 'Turbo Man'
+ *     turboMan.n; // 'Turbo Man'
+ *
+ *     turboMan.name = 'Turbo Man Action Figure';
+ *     turboMan.n; // 'Turbo Man Action Figure'
+ *
+ *     await turboMan.save(); // Saves { _id: ..., n: 'Turbo Man Action Figure' }
+ *
+ *
+ * @param {String} path real path to alias
+ * @param {String|String[]} alias the path(s) to use as an alias for `path`
+ * @return {Schema} the Schema instance
+ * @api public
+ */
+
+Schema.prototype.alias = function alias(path, alias) {
+  aliasFields(this, { [path]: alias });
+  return this;
+};
+
+/**
+ * Remove an index by name or index specification.
+ *
+ * removeIndex only removes indexes from your schema object. Does **not** affect the indexes
+ * in MongoDB.
+ *
+ * #### Example:
+ *
+ *     const ToySchema = new Schema({ name: String, color: String, price: Number });
+ *
+ *     // Add a new index on { name, color }
+ *     ToySchema.index({ name: 1, color: 1 });
+ *
+ *     // Remove index on { name, color }
+ *     // Keep in mind that order matters! `removeIndex({ color: 1, name: 1 })` won't remove the index
+ *     ToySchema.removeIndex({ name: 1, color: 1 });
+ *
+ *     // Add an index with a custom name
+ *     ToySchema.index({ color: 1 }, { name: 'my custom index name' });
+ *     // Remove index by name
+ *     ToySchema.removeIndex('my custom index name');
+ *
+ * @param {Object|string} index name or index specification
+ * @return {Schema} the Schema instance
+ * @api public
+ */
+
+Schema.prototype.removeIndex = function removeIndex(index) {
+  if (arguments.length > 1) {
+    throw new Error('removeIndex() takes only 1 argument');
+  }
+
+  if (typeof index !== 'object' && typeof index !== 'string') {
+    throw new Error('removeIndex() may only take either an object or a string as an argument');
+  }
+
+  if (typeof index === 'object') {
+    for (let i = this._indexes.length - 1; i >= 0; --i) {
+      if (isIndexSpecEqual(this._indexes[i][0], index)) {
+        this._indexes.splice(i, 1);
+      }
+    }
+  } else {
+    for (let i = this._indexes.length - 1; i >= 0; --i) {
+      if (this._indexes[i][1] != null && this._indexes[i][1].name === index) {
+        this._indexes.splice(i, 1);
+      }
+    }
+  }
+
+  return this;
+};
+
+/**
+ * Remove all indexes from this schema.
+ *
+ * clearIndexes only removes indexes from your schema object. Does **not** affect the indexes
+ * in MongoDB.
+ *
+ * #### Example:
+ *
+ *     const ToySchema = new Schema({ name: String, color: String, price: Number });
+ *     ToySchema.index({ name: 1 });
+ *     ToySchema.index({ color: 1 });
+ *
+ *     // Remove all indexes on this schema
+ *     ToySchema.clearIndexes();
+ *
+ *     ToySchema.indexes(); // []
+ *
+ * @return {Schema} the Schema instance
+ * @api public
+ */
+
+Schema.prototype.clearIndexes = function clearIndexes() {
+  this._indexes.length = 0;
+
+  return this;
+};
+
+/**
+ * Add an [Atlas search index](https://www.mongodb.com/docs/atlas/atlas-search/create-index/) that Mongoose will create using `Model.createSearchIndex()`.
+ * This function only works when connected to MongoDB Atlas.
+ *
+ * #### Example:
+ *
+ *     const ToySchema = new Schema({ name: String, color: String, price: Number });
+ *     ToySchema.searchIndex({ name: 'test', definition: { mappings: { dynamic: true } } });
+ *
+ * @param {Object} description index options, including `name` and `definition`
+ * @param {String} description.name
+ * @param {Object} description.definition
+ * @return {Schema} the Schema instance
+ * @api public
+ */
+
+Schema.prototype.searchIndex = function searchIndex(description) {
+  this._searchIndexes.push(description);
+
+  return this;
+};
+
+/**
+ * Reserved document keys.
+ *
+ * Keys in this object are names that are warned in schema declarations
+ * because they have the potential to break Mongoose/ Mongoose plugins functionality. If you create a schema
+ * using `new Schema()` with one of these property names, Mongoose will log a warning.
+ *
+ * - _posts
+ * - _pres
+ * - collection
+  * - emit
+ * - errors
+ * - get
+ * - init
+ * - isModified
+ * - isNew
+ * - listeners
+ * - modelName
+ * - on
+ * - once
+ * - populated
+ * - prototype
+ * - remove
+ * - removeListener
+ * - save
+ * - schema
+ * - toObject
+ * - validate
+ *
+ * _NOTE:_ Use of these terms as method names is permitted, but play at your own risk, as they may be existing mongoose document methods you are stomping on.
+ *
+ *      const schema = new Schema(..);
+ *      schema.methods.init = function () {} // potentially breaking
+ *
+ * @property reserved
+ * @memberOf Schema
+ * @static
+ */
+
+Schema.reserved = Object.create(null);
+Schema.prototype.reserved = Schema.reserved;
+
+const reserved = Schema.reserved;
+// Core object
+reserved['prototype'] =
+// EventEmitter
+reserved.emit =
+reserved.listeners =
+reserved.removeListener =
+
+// document properties and functions
+reserved.collection =
+reserved.errors =
+reserved.get =
+reserved.init =
+reserved.isModified =
+reserved.isNew =
+reserved.populated =
+reserved.remove =
+reserved.save =
+reserved.toObject =
+reserved.validate = 1;
+reserved.collection = 1;
+
+/**
+ * Gets/sets schema paths.
+ *
+ * Sets a path (if arity 2)
+ * Gets a path (if arity 1)
+ *
+ * #### Example:
+ *
+ *     schema.path('name') // returns a SchemaType
+ *     schema.path('name', Number) // changes the schemaType of `name` to Number
+ *
+ * @param {String} path The name of the Path to get / set
+ * @param {Object} [obj] The Type to set the path to, if provided the path will be SET, otherwise the path will be GET
+ * @api public
+ */
+
+Schema.prototype.path = function(path, obj) {
+  if (obj === undefined) {
+    if (this.paths[path] != null) {
+      return this.paths[path];
+    }
+    // Convert to '.$' to check subpaths re: gh-6405
+    const cleanPath = _pathToPositionalSyntax(path);
+    let schematype = _getPath(this, path, cleanPath);
+    if (schematype != null) {
+      return schematype;
+    }
+
+    // Look for maps
+    const mapPath = getMapPath(this, path);
+    if (mapPath != null) {
+      return mapPath;
+    }
+
+    // Look if a parent of this path is mixed
+    schematype = this.hasMixedParent(cleanPath);
+    if (schematype != null) {
+      return schematype;
+    }
+
+    // subpaths?
+    return hasNumericSubpathRegex.test(path)
+      ? getPositionalPath(this, path, cleanPath)
+      : undefined;
+  }
+
+  // some path names conflict with document methods
+  const firstPieceOfPath = path.split('.')[0];
+  if (reserved[firstPieceOfPath] && !this.options.suppressReservedKeysWarning) {
+    const errorMessage = `\`${firstPieceOfPath}\` is a reserved schema pathname and may break some functionality. ` +
+      'You are allowed to use it, but use at your own risk. ' +
+      'To disable this warning pass `suppressReservedKeysWarning` as a schema option.';
+
+    utils.warn(errorMessage);
+  }
+
+  if (typeof obj === 'object' && utils.hasUserDefinedProperty(obj, 'ref')) {
+    validateRef(obj.ref, path);
+  }
+
+  // update the tree
+  const subpaths = path.split(/\./);
+  const last = subpaths.pop();
+  let branch = this.tree;
+  let fullPath = '';
+
+  for (const sub of subpaths) {
+    if (utils.specialProperties.has(sub)) {
+      throw new Error('Cannot set special property `' + sub + '` on a schema');
+    }
+    fullPath = fullPath += (fullPath.length > 0 ? '.' : '') + sub;
+    if (!branch[sub]) {
+      this.nested[fullPath] = true;
+      branch[sub] = {};
+    }
+    if (typeof branch[sub] !== 'object') {
+      const msg = 'Cannot set nested path `' + path + '`. '
+          + 'Parent path `'
+          + fullPath
+          + '` already set to type ' + branch[sub].name
+          + '.';
+      throw new Error(msg);
+    }
+    branch = branch[sub];
+  }
+
+  branch[last] = clone(obj);
+
+  this.paths[path] = this.interpretAsType(path, obj, this.options);
+  const schemaType = this.paths[path];
+
+  if (schemaType.$isSchemaMap) {
+    // Maps can have arbitrary keys, so `$*` is internal shorthand for "any key"
+    // The '$' is to imply this path should never be stored in MongoDB so we
+    // can easily build a regexp out of this path, and '*' to imply "any key."
+    const mapPath = path + '.$*';
+
+    this.paths[mapPath] = schemaType.$__schemaType;
+    this.mapPaths.push(this.paths[mapPath]);
+    if (schemaType.$__schemaType.$isSingleNested) {
+      this.childSchemas.push({
+        schema: schemaType.$__schemaType.schema,
+        model: schemaType.$__schemaType.caster,
+        path: path
+      });
+    }
+  }
+
+  if (schemaType.$isSingleNested) {
+    for (const key of Object.keys(schemaType.schema.paths)) {
+      this.singleNestedPaths[path + '.' + key] = schemaType.schema.paths[key];
+    }
+    for (const key of Object.keys(schemaType.schema.singleNestedPaths)) {
+      this.singleNestedPaths[path + '.' + key] =
+        schemaType.schema.singleNestedPaths[key];
+    }
+    for (const key of Object.keys(schemaType.schema.subpaths)) {
+      this.singleNestedPaths[path + '.' + key] =
+        schemaType.schema.subpaths[key];
+    }
+    for (const key of Object.keys(schemaType.schema.nested)) {
+      this.singleNestedPaths[path + '.' + key] = 'nested';
+    }
+
+    Object.defineProperty(schemaType.schema, 'base', {
+      configurable: true,
+      enumerable: false,
+      writable: false,
+      value: this.base
+    });
+
+    schemaType.caster.base = this.base;
+    this.childSchemas.push({
+      schema: schemaType.schema,
+      model: schemaType.caster,
+      path: path
+    });
+  } else if (schemaType.$isMongooseDocumentArray) {
+    Object.defineProperty(schemaType.schema, 'base', {
+      configurable: true,
+      enumerable: false,
+      writable: false,
+      value: this.base
+    });
+
+    schemaType.casterConstructor.base = this.base;
+    this.childSchemas.push({
+      schema: schemaType.schema,
+      model: schemaType.casterConstructor,
+      path: path
+    });
+  }
+
+  if (schemaType.$isMongooseArray && schemaType.caster instanceof SchemaType) {
+    let arrayPath = path;
+    let _schemaType = schemaType;
+
+    const toAdd = [];
+    while (_schemaType.$isMongooseArray) {
+      arrayPath = arrayPath + '.$';
+
+      // Skip arrays of document arrays
+      if (_schemaType.$isMongooseDocumentArray) {
+        _schemaType.$embeddedSchemaType._arrayPath = arrayPath;
+        _schemaType.$embeddedSchemaType._arrayParentPath = path;
+        _schemaType = _schemaType.$embeddedSchemaType;
+      } else {
+        _schemaType.caster._arrayPath = arrayPath;
+        _schemaType.caster._arrayParentPath = path;
+        _schemaType = _schemaType.caster;
+      }
+
+      this.subpaths[arrayPath] = _schemaType;
+    }
+
+    for (const _schemaType of toAdd) {
+      this.subpaths[_schemaType.path] = _schemaType;
+    }
+  }
+
+  if (schemaType.$isMongooseDocumentArray) {
+    for (const key of Object.keys(schemaType.schema.paths)) {
+      const _schemaType = schemaType.schema.paths[key];
+      this.subpaths[path + '.' + key] = _schemaType;
+      if (typeof _schemaType === 'object' && _schemaType != null && _schemaType.$parentSchemaDocArray == null) {
+        _schemaType.$parentSchemaDocArray = schemaType;
+      }
+    }
+    for (const key of Object.keys(schemaType.schema.subpaths)) {
+      const _schemaType = schemaType.schema.subpaths[key];
+      this.subpaths[path + '.' + key] = _schemaType;
+      if (typeof _schemaType === 'object' && _schemaType != null && _schemaType.$parentSchemaDocArray == null) {
+        _schemaType.$parentSchemaDocArray = schemaType;
+      }
+    }
+    for (const key of Object.keys(schemaType.schema.singleNestedPaths)) {
+      const _schemaType = schemaType.schema.singleNestedPaths[key];
+      this.subpaths[path + '.' + key] = _schemaType;
+      if (typeof _schemaType === 'object' && _schemaType != null && _schemaType.$parentSchemaDocArray == null) {
+        _schemaType.$parentSchemaDocArray = schemaType;
+      }
+    }
+  }
+
+  return this;
+};
+
+/*!
+ * ignore
+ */
+
+Schema.prototype._gatherChildSchemas = function _gatherChildSchemas() {
+  const childSchemas = [];
+
+  for (const path of Object.keys(this.paths)) {
+    if (typeof path !== 'string') {
+      continue;
+    }
+    const schematype = this.paths[path];
+    if (schematype.$isMongooseDocumentArray || schematype.$isSingleNested) {
+      childSchemas.push({
+        schema: schematype.schema,
+        model: schematype.caster,
+        path: path
+      });
+    } else if (schematype.$isSchemaMap && schematype.$__schemaType.$isSingleNested) {
+      childSchemas.push({
+        schema: schematype.$__schemaType.schema,
+        model: schematype.$__schemaType.caster,
+        path: path
+      });
+    }
+  }
+
+  this.childSchemas = childSchemas;
+  return childSchemas;
+};
+
+/*!
+ * ignore
+ */
+
+function _getPath(schema, path, cleanPath) {
+  if (schema.paths.hasOwnProperty(path)) {
+    return schema.paths[path];
+  }
+  if (schema.subpaths.hasOwnProperty(cleanPath)) {
+    const subpath = schema.subpaths[cleanPath];
+    if (subpath === 'nested') {
+      return undefined;
+    }
+    return subpath;
+  }
+  if (schema.singleNestedPaths.hasOwnProperty(cleanPath) && typeof schema.singleNestedPaths[cleanPath] === 'object') {
+    const singleNestedPath = schema.singleNestedPaths[cleanPath];
+    if (singleNestedPath === 'nested') {
+      return undefined;
+    }
+    return singleNestedPath;
+  }
+
+  return null;
+}
+
+/*!
+ * ignore
+ */
+
+function _pathToPositionalSyntax(path) {
+  if (!/\.\d+/.test(path)) {
+    return path;
+  }
+  return path.replace(/\.\d+\./g, '.$.').replace(/\.\d+$/, '.$');
+}
+
+/*!
+ * ignore
+ */
+
+function getMapPath(schema, path) {
+  if (schema.mapPaths.length === 0) {
+    return null;
+  }
+  for (const val of schema.mapPaths) {
+    const _path = val.path;
+    const re = new RegExp('^' + _path.replace(/\.\$\*/g, '\\.[^.]+') + '$');
+    if (re.test(path)) {
+      return schema.paths[_path];
+    }
+  }
+
+  return null;
+}
+
+/**
+ * The Mongoose instance this schema is associated with
+ *
+ * @property base
+ * @api private
+ */
+
+Object.defineProperty(Schema.prototype, 'base', {
+  configurable: true,
+  enumerable: false,
+  writable: true,
+  value: null
+});
+
+/**
+ * Converts type arguments into Mongoose Types.
+ *
+ * @param {String} path
+ * @param {Object} obj constructor
+ * @param {Object} options
+ * @api private
+ */
+
+Schema.prototype.interpretAsType = function(path, obj, options) {
+  if (obj instanceof SchemaType) {
+    if (obj.path === path) {
+      return obj;
+    }
+    const clone = obj.clone();
+    clone.path = path;
+    return clone;
+  }
+
+
+  // If this schema has an associated Mongoose object, use the Mongoose object's
+  // copy of SchemaTypes re: gh-7158 gh-6933
+  const MongooseTypes = this.base != null ? this.base.Schema.Types : Schema.Types;
+  const Types = this.base != null ? this.base.Types : require('./types');
+
+  if (!utils.isPOJO(obj) && !(obj instanceof SchemaTypeOptions)) {
+    const constructorName = utils.getFunctionName(obj.constructor);
+    if (constructorName !== 'Object') {
+      const oldObj = obj;
+      obj = {};
+      obj[options.typeKey] = oldObj;
+    }
+  }
+
+  // Get the type making sure to allow keys named "type"
+  // and default to mixed if not specified.
+  // { type: { type: String, default: 'freshcut' } }
+  let type = obj[options.typeKey] && (obj[options.typeKey] instanceof Function || options.typeKey !== 'type' || !obj.type.type)
+    ? obj[options.typeKey]
+    : {};
+  let name;
+
+  if (utils.isPOJO(type) || type === 'mixed') {
+    return new MongooseTypes.Mixed(path, obj);
+  }
+
+  if (Array.isArray(type) || type === Array || type === 'array' || type === MongooseTypes.Array) {
+    // if it was specified through { type } look for `cast`
+    let cast = (type === Array || type === 'array')
+      ? obj.cast || obj.of
+      : type[0];
+
+    // new Schema({ path: [new Schema({ ... })] })
+    if (cast && cast.instanceOfSchema) {
+      if (!(cast instanceof Schema)) {
+        if (this.options._isMerging) {
+          cast = new Schema(cast);
+        } else {
+          throw new TypeError('Schema for array path `' + path +
+            '` is from a different copy of the Mongoose module. ' +
+            'Please make sure you\'re using the same version ' +
+            'of Mongoose everywhere with `npm list mongoose`. If you are still ' +
+            'getting this error, please add `new Schema()` around the path: ' +
+            `${path}: new Schema(...)`);
+        }
+      }
+      return new MongooseTypes.DocumentArray(path, cast, obj);
+    }
+    if (cast &&
+        cast[options.typeKey] &&
+        cast[options.typeKey].instanceOfSchema) {
+      if (!(cast[options.typeKey] instanceof Schema)) {
+        if (this.options._isMerging) {
+          cast[options.typeKey] = new Schema(cast[options.typeKey]);
+        } else {
+          throw new TypeError('Schema for array path `' + path +
+            '` is from a different copy of the Mongoose module. ' +
+            'Please make sure you\'re using the same version ' +
+            'of Mongoose everywhere with `npm list mongoose`. If you are still ' +
+            'getting this error, please add `new Schema()` around the path: ' +
+            `${path}: new Schema(...)`);
+        }
+      }
+      return new MongooseTypes.DocumentArray(path, cast[options.typeKey], obj, cast);
+    }
+    if (typeof cast !== 'undefined') {
+      if (Array.isArray(cast) || cast.type === Array || cast.type == 'Array') {
+        if (cast && cast.type == 'Array') {
+          cast.type = Array;
+        }
+        return new MongooseTypes.Array(path, this.interpretAsType(path, cast, options), obj);
+      }
+    }
+
+    // Handle both `new Schema({ arr: [{ subpath: String }] })` and `new Schema({ arr: [{ type: { subpath: string } }] })`
+    const castFromTypeKey = (cast != null && cast[options.typeKey] && (options.typeKey !== 'type' || !cast.type.type)) ?
+      cast[options.typeKey] :
+      cast;
+    if (typeof cast === 'string') {
+      cast = MongooseTypes[cast.charAt(0).toUpperCase() + cast.substring(1)];
+    } else if (utils.isPOJO(castFromTypeKey)) {
+      if (Object.keys(castFromTypeKey).length) {
+        // The `minimize` and `typeKey` options propagate to child schemas
+        // declared inline, like `{ arr: [{ val: { $type: String } }] }`.
+        // See gh-3560
+        const childSchemaOptions = { minimize: options.minimize };
+        if (options.typeKey) {
+          childSchemaOptions.typeKey = options.typeKey;
+        }
+        // propagate 'strict' option to child schema
+        if (options.hasOwnProperty('strict')) {
+          childSchemaOptions.strict = options.strict;
+        }
+        if (options.hasOwnProperty('strictQuery')) {
+          childSchemaOptions.strictQuery = options.strictQuery;
+        }
+        if (options.hasOwnProperty('toObject')) {
+          childSchemaOptions.toObject = utils.omit(options.toObject, ['transform']);
+        }
+        if (options.hasOwnProperty('toJSON')) {
+          childSchemaOptions.toJSON = utils.omit(options.toJSON, ['transform']);
+        }
+
+        if (this._userProvidedOptions.hasOwnProperty('_id')) {
+          childSchemaOptions._id = this._userProvidedOptions._id;
+        } else if (Schema.Types.DocumentArray.defaultOptions._id != null) {
+          childSchemaOptions._id = Schema.Types.DocumentArray.defaultOptions._id;
+        }
+
+        const childSchema = new Schema(castFromTypeKey, childSchemaOptions);
+        childSchema.$implicitlyCreated = true;
+        return new MongooseTypes.DocumentArray(path, childSchema, obj);
+      } else {
+        // Special case: empty object becomes mixed
+        return new MongooseTypes.Array(path, MongooseTypes.Mixed, obj);
+      }
+    }
+
+    if (cast) {
+      type = cast[options.typeKey] && (options.typeKey !== 'type' || !cast.type.type)
+        ? cast[options.typeKey]
+        : cast;
+      if (Array.isArray(type)) {
+        return new MongooseTypes.Array(path, this.interpretAsType(path, type, options), obj);
+      }
+
+      name = typeof type === 'string'
+        ? type
+        : type.schemaName || utils.getFunctionName(type);
+
+      // For Jest 26+, see #10296
+      if (name === 'ClockDate') {
+        name = 'Date';
+      }
+
+      if (name === void 0) {
+        throw new TypeError('Invalid schema configuration: ' +
+          `Could not determine the embedded type for array \`${path}\`. ` +
+          'See https://mongoosejs.com/docs/guide.html#definition for more info on supported schema syntaxes.');
+      }
+      if (!MongooseTypes.hasOwnProperty(name)) {
+        throw new TypeError('Invalid schema configuration: ' +
+          `\`${name}\` is not a valid type within the array \`${path}\`.` +
+          'See https://bit.ly/mongoose-schematypes for a list of valid schema types.');
+      }
+    }
+
+    return new MongooseTypes.Array(path, cast || MongooseTypes.Mixed, obj, options);
+  }
+
+  if (type && type.instanceOfSchema) {
+    return new MongooseTypes.Subdocument(type, path, obj);
+  }
+
+  if (Buffer.isBuffer(type)) {
+    name = 'Buffer';
+  } else if (typeof type === 'function' || typeof type === 'object') {
+    name = type.schemaName || utils.getFunctionName(type);
+  } else if (type === Types.ObjectId) {
+    name = 'ObjectId';
+  } else if (type === Types.Decimal128) {
+    name = 'Decimal128';
+  } else {
+    name = type == null ? '' + type : type.toString();
+  }
+
+  if (name) {
+    name = name.charAt(0).toUpperCase() + name.substring(1);
+  }
+  // Special case re: gh-7049 because the bson `ObjectID` class' capitalization
+  // doesn't line up with Mongoose's.
+  if (name === 'ObjectID') {
+    name = 'ObjectId';
+  }
+  // For Jest 26+, see #10296
+  if (name === 'ClockDate') {
+    name = 'Date';
+  }
+
+  if (name === void 0) {
+    throw new TypeError(`Invalid schema configuration: \`${path}\` schematype definition is ` +
+      'invalid. See ' +
+      'https://mongoosejs.com/docs/guide.html#definition for more info on supported schema syntaxes.');
+  }
+  if (MongooseTypes[name] == null) {
+    throw new TypeError(`Invalid schema configuration: \`${name}\` is not ` +
+      `a valid type at path \`${path}\`. See ` +
+      'https://bit.ly/mongoose-schematypes for a list of valid schema types.');
+  }
+
+  const schemaType = new MongooseTypes[name](path, obj);
+
+  if (schemaType.$isSchemaMap) {
+    createMapNestedSchemaType(this, schemaType, path, obj, options);
+  }
+
+  return schemaType;
+};
+
+/*!
+ * ignore
+ */
+
+function createMapNestedSchemaType(schema, schemaType, path, obj, options) {
+  const mapPath = path + '.$*';
+  let _mapType = { type: {} };
+  if (utils.hasUserDefinedProperty(obj, 'of')) {
+    const isInlineSchema = utils.isPOJO(obj.of) &&
+      Object.keys(obj.of).length > 0 &&
+      !utils.hasUserDefinedProperty(obj.of, schema.options.typeKey);
+    if (isInlineSchema) {
+      _mapType = { [schema.options.typeKey]: new Schema(obj.of) };
+    } else if (utils.isPOJO(obj.of)) {
+      _mapType = Object.assign({}, obj.of);
+    } else {
+      _mapType = { [schema.options.typeKey]: obj.of };
+    }
+
+    if (_mapType[schema.options.typeKey] && _mapType[schema.options.typeKey].instanceOfSchema) {
+      const subdocumentSchema = _mapType[schema.options.typeKey];
+      subdocumentSchema.eachPath((subpath, type) => {
+        if (type.options.select === true || type.options.select === false) {
+          throw new MongooseError('Cannot use schema-level projections (`select: true` or `select: false`) within maps at path "' + path + '.' + subpath + '"');
+        }
+      });
+    }
+
+    if (utils.hasUserDefinedProperty(obj, 'ref')) {
+      _mapType.ref = obj.ref;
+    }
+  }
+  schemaType.$__schemaType = schema.interpretAsType(mapPath, _mapType, options);
+}
+
+/**
+ * Iterates the schemas paths similar to Array#forEach.
+ *
+ * The callback is passed the pathname and the schemaType instance.
+ *
+ * #### Example:
+ *
+ *     const userSchema = new Schema({ name: String, registeredAt: Date });
+ *     userSchema.eachPath((pathname, schematype) => {
+ *       // Prints twice:
+ *       // name SchemaString { ... }
+ *       // registeredAt SchemaDate { ... }
+ *       console.log(pathname, schematype);
+ *     });
+ *
+ * @param {Function} fn callback function
+ * @return {Schema} this
+ * @api public
+ */
+
+Schema.prototype.eachPath = function(fn) {
+  const keys = Object.keys(this.paths);
+  const len = keys.length;
+
+  for (let i = 0; i < len; ++i) {
+    fn(keys[i], this.paths[keys[i]]);
+  }
+
+  return this;
+};
+
+/**
+ * Returns an Array of path strings that are required by this schema.
+ *
+ * #### Example:
+ *
+ *     const s = new Schema({
+ *       name: { type: String, required: true },
+ *       age: { type: String, required: true },
+ *       notes: String
+ *     });
+ *     s.requiredPaths(); // [ 'age', 'name' ]
+ *
+ * @api public
+ * @param {Boolean} invalidate Refresh the cache
+ * @return {Array}
+ */
+
+Schema.prototype.requiredPaths = function requiredPaths(invalidate) {
+  if (this._requiredpaths && !invalidate) {
+    return this._requiredpaths;
+  }
+
+  const paths = Object.keys(this.paths);
+  let i = paths.length;
+  const ret = [];
+
+  while (i--) {
+    const path = paths[i];
+    if (this.paths[path].isRequired) {
+      ret.push(path);
+    }
+  }
+  this._requiredpaths = ret;
+  return this._requiredpaths;
+};
+
+/**
+ * Returns indexes from fields and schema-level indexes (cached).
+ *
+ * @api private
+ * @return {Array}
+ */
+
+Schema.prototype.indexedPaths = function indexedPaths() {
+  if (this._indexedpaths) {
+    return this._indexedpaths;
+  }
+  this._indexedpaths = this.indexes();
+  return this._indexedpaths;
+};
+
+/**
+ * Returns the pathType of `path` for this schema.
+ *
+ * Given a path, returns whether it is a real, virtual, nested, or ad-hoc/undefined path.
+ *
+ * #### Example:
+ *
+ *     const s = new Schema({ name: String, nested: { foo: String } });
+ *     s.virtual('foo').get(() => 42);
+ *     s.pathType('name'); // "real"
+ *     s.pathType('nested'); // "nested"
+ *     s.pathType('foo'); // "virtual"
+ *     s.pathType('fail'); // "adhocOrUndefined"
+ *
+ * @param {String} path
+ * @return {String}
+ * @api public
+ */
+
+Schema.prototype.pathType = function(path) {
+  if (this.paths.hasOwnProperty(path)) {
+    return 'real';
+  }
+  if (this.virtuals.hasOwnProperty(path)) {
+    return 'virtual';
+  }
+  if (this.nested.hasOwnProperty(path)) {
+    return 'nested';
+  }
+
+  // Convert to '.$' to check subpaths re: gh-6405
+  const cleanPath = _pathToPositionalSyntax(path);
+
+  if (this.subpaths.hasOwnProperty(cleanPath) || this.subpaths.hasOwnProperty(path)) {
+    return 'real';
+  }
+
+  const singleNestedPath = this.singleNestedPaths.hasOwnProperty(cleanPath) || this.singleNestedPaths.hasOwnProperty(path);
+  if (singleNestedPath) {
+    return singleNestedPath === 'nested' ? 'nested' : 'real';
+  }
+
+  // Look for maps
+  const mapPath = getMapPath(this, path);
+  if (mapPath != null) {
+    return 'real';
+  }
+
+  if (/\.\d+\.|\.\d+$/.test(path)) {
+    return getPositionalPathType(this, path, cleanPath);
+  }
+  return 'adhocOrUndefined';
+};
+
+/**
+ * Returns true iff this path is a child of a mixed schema.
+ *
+ * @param {String} path
+ * @return {Boolean}
+ * @api private
+ */
+
+Schema.prototype.hasMixedParent = function(path) {
+  const subpaths = path.split(/\./g);
+  path = '';
+  for (let i = 0; i < subpaths.length; ++i) {
+    path = i > 0 ? path + '.' + subpaths[i] : subpaths[i];
+    if (this.paths.hasOwnProperty(path) &&
+        this.paths[path] instanceof MongooseTypes.Mixed) {
+      return this.paths[path];
+    }
+  }
+
+  return null;
+};
+
+/**
+ * Setup updatedAt and createdAt timestamps to documents if enabled
+ *
+ * @param {Boolean|Object} timestamps timestamps options
+ * @api private
+ */
+Schema.prototype.setupTimestamp = function(timestamps) {
+  return setupTimestamps(this, timestamps);
+};
+
+/**
+ * ignore. Deprecated re: #6405
+ * @param {Any} self
+ * @param {String} path
+ * @api private
+ */
+
+function getPositionalPathType(self, path, cleanPath) {
+  const subpaths = path.split(/\.(\d+)\.|\.(\d+)$/).filter(Boolean);
+  if (subpaths.length < 2) {
+    return self.paths.hasOwnProperty(subpaths[0]) ?
+      self.paths[subpaths[0]] :
+      'adhocOrUndefined';
+  }
+
+  let val = self.path(subpaths[0]);
+  let isNested = false;
+  if (!val) {
+    return 'adhocOrUndefined';
+  }
+
+  const last = subpaths.length - 1;
+
+  for (let i = 1; i < subpaths.length; ++i) {
+    isNested = false;
+    const subpath = subpaths[i];
+
+    if (i === last && val && !/\D/.test(subpath)) {
+      if (val.$isMongooseDocumentArray) {
+        val = val.$embeddedSchemaType;
+      } else if (val instanceof MongooseTypes.Array) {
+        // StringSchema, NumberSchema, etc
+        val = val.caster;
+      } else {
+        val = undefined;
+      }
+      break;
+    }
+
+    // ignore if its just a position segment: path.0.subpath
+    if (!/\D/.test(subpath)) {
+      // Nested array
+      if (val instanceof MongooseTypes.Array && i !== last) {
+        val = val.caster;
+      }
+      continue;
+    }
+
+    if (!(val && val.schema)) {
+      val = undefined;
+      break;
+    }
+
+    const type = val.schema.pathType(subpath);
+    isNested = (type === 'nested');
+    val = val.schema.path(subpath);
+  }
+
+  self.subpaths[cleanPath] = val;
+  if (val) {
+    return 'real';
+  }
+  if (isNested) {
+    return 'nested';
+  }
+  return 'adhocOrUndefined';
+}
+
+
+/*!
+ * ignore
+ */
+
+function getPositionalPath(self, path, cleanPath) {
+  getPositionalPathType(self, path, cleanPath);
+  return self.subpaths[cleanPath];
+}
+
+/**
+ * Adds a method call to the queue.
+ *
+ * #### Example:
+ *
+ *     schema.methods.print = function() { console.log(this); };
+ *     schema.queue('print', []); // Print the doc every one is instantiated
+ *
+ *     const Model = mongoose.model('Test', schema);
+ *     new Model({ name: 'test' }); // Prints '{"_id": ..., "name": "test" }'
+ *
+ * @param {String} name name of the document method to call later
+ * @param {Array} args arguments to pass to the method
+ * @api public
+ */
+
+Schema.prototype.queue = function(name, args) {
+  this.callQueue.push([name, args]);
+  return this;
+};
+
+/**
+ * Defines a pre hook for the model.
+ *
+ * #### Example:
+ *
+ *     const toySchema = new Schema({ name: String, created: Date });
+ *
+ *     toySchema.pre('save', function(next) {
+ *       if (!this.created) this.created = new Date;
+ *       next();
+ *     });
+ *
+ *     toySchema.pre('validate', function(next) {
+ *       if (this.name !== 'Woody') this.name = 'Woody';
+ *       next();
+ *     });
+ *
+ *     // Equivalent to calling `pre()` on `find`, `findOne`, `findOneAndUpdate`.
+ *     toySchema.pre(/^find/, function(next) {
+ *       console.log(this.getFilter());
+ *     });
+ *
+ *     // Equivalent to calling `pre()` on `updateOne`, `findOneAndUpdate`.
+ *     toySchema.pre(['updateOne', 'findOneAndUpdate'], function(next) {
+ *       console.log(this.getFilter());
+ *     });
+ *
+ *     toySchema.pre('deleteOne', function() {
+ *       // Runs when you call `Toy.deleteOne()`
+ *     });
+ *
+ *     toySchema.pre('deleteOne', { document: true }, function() {
+ *       // Runs when you call `doc.deleteOne()`
+ *     });
+ *
+ * @param {String|RegExp|String[]} methodName The method name or regular expression to match method name
+ * @param {Object} [options]
+ * @param {Boolean} [options.document] If `name` is a hook for both document and query middleware, set to `true` to run on document middleware. For example, set `options.document` to `true` to apply this hook to `Document#deleteOne()` rather than `Query#deleteOne()`.
+ * @param {Boolean} [options.query] If `name` is a hook for both document and query middleware, set to `true` to run on query middleware.
+ * @param {Function} callback
+ * @api public
+ */
+
+Schema.prototype.pre = function(name) {
+  if (name instanceof RegExp) {
+    const remainingArgs = Array.prototype.slice.call(arguments, 1);
+    for (const fn of hookNames) {
+      if (name.test(fn)) {
+        this.pre.apply(this, [fn].concat(remainingArgs));
+      }
+    }
+    return this;
+  }
+  if (Array.isArray(name)) {
+    const remainingArgs = Array.prototype.slice.call(arguments, 1);
+    for (const el of name) {
+      this.pre.apply(this, [el].concat(remainingArgs));
+    }
+    return this;
+  }
+  this.s.hooks.pre.apply(this.s.hooks, arguments);
+  return this;
+};
+
+/**
+ * Defines a post hook for the document
+ *
+ *     const schema = new Schema(..);
+ *     schema.post('save', function (doc) {
+ *       console.log('this fired after a document was saved');
+ *     });
+ *
+ *     schema.post('find', function(docs) {
+ *       console.log('this fired after you ran a find query');
+ *     });
+ *
+ *     schema.post(/Many$/, function(res) {
+ *       console.log('this fired after you ran `updateMany()` or `deleteMany()`');
+ *     });
+ *
+ *     const Model = mongoose.model('Model', schema);
+ *
+ *     const m = new Model(..);
+ *     m.save(function(err) {
+ *       console.log('this fires after the `post` hook');
+ *     });
+ *
+ *     m.find(function(err, docs) {
+ *       console.log('this fires after the post find hook');
+ *     });
+ *
+ * @param {String|RegExp|String[]} methodName The method name or regular expression to match method name
+ * @param {Object} [options]
+ * @param {Boolean} [options.document] If `name` is a hook for both document and query middleware, set to `true` to run on document middleware.
+ * @param {Boolean} [options.query] If `name` is a hook for both document and query middleware, set to `true` to run on query middleware.
+ * @param {Function} fn callback
+ * @see middleware https://mongoosejs.com/docs/middleware.html
+ * @see kareem https://npmjs.org/package/kareem
+ * @api public
+ */
+
+Schema.prototype.post = function(name) {
+  if (name instanceof RegExp) {
+    const remainingArgs = Array.prototype.slice.call(arguments, 1);
+    for (const fn of hookNames) {
+      if (name.test(fn)) {
+        this.post.apply(this, [fn].concat(remainingArgs));
+      }
+    }
+    return this;
+  }
+  if (Array.isArray(name)) {
+    const remainingArgs = Array.prototype.slice.call(arguments, 1);
+    for (const el of name) {
+      this.post.apply(this, [el].concat(remainingArgs));
+    }
+    return this;
+  }
+  this.s.hooks.post.apply(this.s.hooks, arguments);
+  return this;
+};
+
+/**
+ * Registers a plugin for this schema.
+ *
+ * #### Example:
+ *
+ *     const s = new Schema({ name: String });
+ *     s.plugin(schema => console.log(schema.path('name').path));
+ *     mongoose.model('Test', s); // Prints 'name'
+ *
+ * Or with Options:
+ *
+ *     const s = new Schema({ name: String });
+ *     s.plugin((schema, opts) => console.log(opts.text, schema.path('name').path), { text: "Schema Path Name:" });
+ *     mongoose.model('Test', s); // Prints 'Schema Path Name: name'
+ *
+ * @param {Function} plugin The Plugin's callback
+ * @param {Object} [opts] Options to pass to the plugin
+ * @param {Boolean} [opts.deduplicate=false] If true, ignore duplicate plugins (same `fn` argument using `===`)
+ * @see plugins https://mongoosejs.com/docs/plugins.html
+ * @api public
+ */
+
+Schema.prototype.plugin = function(fn, opts) {
+  if (typeof fn !== 'function') {
+    throw new Error('First param to `schema.plugin()` must be a function, ' +
+      'got "' + (typeof fn) + '"');
+  }
+
+
+  if (opts && opts.deduplicate) {
+    for (const plugin of this.plugins) {
+      if (plugin.fn === fn) {
+        return this;
+      }
+    }
+  }
+  this.plugins.push({ fn: fn, opts: opts });
+
+  fn(this, opts);
+  return this;
+};
+
+/**
+ * Adds an instance method to documents constructed from Models compiled from this schema.
+ *
+ * #### Example:
+ *
+ *     const schema = kittySchema = new Schema(..);
+ *
+ *     schema.method('meow', function () {
+ *       console.log('meeeeeoooooooooooow');
+ *     })
+ *
+ *     const Kitty = mongoose.model('Kitty', schema);
+ *
+ *     const fizz = new Kitty;
+ *     fizz.meow(); // meeeeeooooooooooooow
+ *
+ * If a hash of name/fn pairs is passed as the only argument, each name/fn pair will be added as methods.
+ *
+ *     schema.method({
+ *         purr: function () {}
+ *       , scratch: function () {}
+ *     });
+ *
+ *     // later
+ *     const fizz = new Kitty;
+ *     fizz.purr();
+ *     fizz.scratch();
+ *
+ * NOTE: `Schema.method()` adds instance methods to the `Schema.methods` object. You can also add instance methods directly to the `Schema.methods` object as seen in the [guide](https://mongoosejs.com/docs/guide.html#methods)
+ *
+ * @param {String|Object} name The Method Name for a single function, or a Object of "string-function" pairs.
+ * @param {Function} [fn] The Function in a single-function definition.
+ * @api public
+ */
+
+Schema.prototype.method = function(name, fn, options) {
+  if (typeof name !== 'string') {
+    for (const i in name) {
+      this.methods[i] = name[i];
+      this.methodOptions[i] = clone(options);
+    }
+  } else {
+    this.methods[name] = fn;
+    this.methodOptions[name] = clone(options);
+  }
+  return this;
+};
+
+/**
+ * Adds static "class" methods to Models compiled from this schema.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema(..);
+ *     // Equivalent to `schema.statics.findByName = function(name) {}`;
+ *     schema.static('findByName', function(name) {
+ *       return this.find({ name: name });
+ *     });
+ *
+ *     const Drink = mongoose.model('Drink', schema);
+ *     await Drink.findByName('LaCroix');
+ *
+ * If a hash of name/fn pairs is passed as the only argument, each name/fn pair will be added as methods.
+ *
+ *     schema.static({
+ *         findByName: function () {..}
+ *       , findByCost: function () {..}
+ *     });
+ *
+ *     const Drink = mongoose.model('Drink', schema);
+ *     await Drink.findByName('LaCroix');
+ *     await Drink.findByCost(3);
+ *
+ * If a hash of name/fn pairs is passed as the only argument, each name/fn pair will be added as statics.
+ *
+ * @param {String|Object} name The Method Name for a single function, or a Object of "string-function" pairs.
+ * @param {Function} [fn] The Function in a single-function definition.
+ * @api public
+ * @see Statics https://mongoosejs.com/docs/guide.html#statics
+ */
+
+Schema.prototype.static = function(name, fn) {
+  if (typeof name !== 'string') {
+    for (const i in name) {
+      this.statics[i] = name[i];
+    }
+  } else {
+    this.statics[name] = fn;
+  }
+  return this;
+};
+
+/**
+ * Defines an index (most likely compound) for this schema.
+ *
+ * #### Example:
+ *
+ *     schema.index({ first: 1, last: -1 })
+ *
+ * @param {Object} fields The Fields to index, with the order, available values: `1 | -1 | '2d' | '2dsphere' | 'geoHaystack' | 'hashed' | 'text'`
+ * @param {Object} [options] Options to pass to [MongoDB driver's `createIndex()` function](https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#createIndex)
+ * @param {String | number} [options.expires=null] Mongoose-specific syntactic sugar, uses [ms](https://www.npmjs.com/package/ms) to convert `expires` option into seconds for the `expireAfterSeconds` in the above link.
+ * @param {String} [options.language_override=null] Tells mongodb to use the specified field instead of `language` for parsing text indexes.
+ * @api public
+ */
+
+Schema.prototype.index = function(fields, options) {
+  fields || (fields = {});
+  options || (options = {});
+
+  if (options.expires) {
+    utils.expires(options);
+  }
+  for (const key in fields) {
+    if (this.aliases[key]) {
+      fields = utils.renameObjKey(fields, key, this.aliases[key]);
+    }
+  }
+  for (const field of Object.keys(fields)) {
+    if (fields[field] === 'ascending' || fields[field] === 'asc') {
+      fields[field] = 1;
+    } else if (fields[field] === 'descending' || fields[field] === 'desc') {
+      fields[field] = -1;
+    }
+  }
+
+  for (const existingIndex of this.indexes()) {
+    if (options.name == null && existingIndex[1].name == null && isIndexSpecEqual(existingIndex[0], fields)) {
+      utils.warn(`Duplicate schema index on ${JSON.stringify(fields)} found. This is often due to declaring an index using both "index: true" and "schema.index()". Please remove the duplicate index definition.`);
+    }
+  }
+
+  this._indexes.push([fields, options]);
+  return this;
+};
+
+/**
+ * Sets a schema option.
+ *
+ * #### Example:
+ *
+ *     schema.set('strict'); // 'true' by default
+ *     schema.set('strict', false); // Sets 'strict' to false
+ *     schema.set('strict'); // 'false'
+ *
+ * @param {String} key The name of the option to set the value to
+ * @param {Object} [value] The value to set the option to, if not passed, the option will be reset to default
+ * @param {Array<string>} [tags] tags to add to read preference if key === 'read'
+ * @see Schema https://mongoosejs.com/docs/api/schema.html#Schema()
+ * @api public
+ */
+
+Schema.prototype.set = function(key, value, tags) {
+  if (arguments.length === 1) {
+    return this.options[key];
+  }
+
+  switch (key) {
+    case 'read':
+      if (typeof value === 'string') {
+        this.options[key] = { mode: handleReadPreferenceAliases(value), tags };
+      } else if (Array.isArray(value) && typeof value[0] === 'string') {
+        this.options[key] = {
+          mode: handleReadPreferenceAliases(value[0]),
+          tags: value[1]
+        };
+      } else {
+        this.options[key] = value;
+      }
+      this._userProvidedOptions[key] = this.options[key];
+      break;
+    case 'timestamps':
+      this.setupTimestamp(value);
+      this.options[key] = value;
+      this._userProvidedOptions[key] = this.options[key];
+      break;
+    case '_id':
+      this.options[key] = value;
+      this._userProvidedOptions[key] = this.options[key];
+
+      if (value && !this.paths['_id']) {
+        addAutoId(this);
+      } else if (!value && this.paths['_id'] != null && this.paths['_id'].auto) {
+        this.remove('_id');
+      }
+      break;
+    default:
+      this.options[key] = value;
+      this._userProvidedOptions[key] = this.options[key];
+      break;
+  }
+
+  // Propagate `strict` and `strictQuery` changes down to implicitly created schemas
+  if (key === 'strict') {
+    _propagateOptionsToImplicitlyCreatedSchemas(this, { strict: value });
+  }
+  if (key === 'strictQuery') {
+    _propagateOptionsToImplicitlyCreatedSchemas(this, { strictQuery: value });
+  }
+  if (key === 'toObject') {
+    value = { ...value };
+    // Avoid propagating transform to implicitly created schemas re: gh-3279
+    delete value.transform;
+    _propagateOptionsToImplicitlyCreatedSchemas(this, { toObject: value });
+  }
+  if (key === 'toJSON') {
+    value = { ...value };
+    // Avoid propagating transform to implicitly created schemas re: gh-3279
+    delete value.transform;
+    _propagateOptionsToImplicitlyCreatedSchemas(this, { toJSON: value });
+  }
+
+  return this;
+};
+
+/*!
+ * Recursively set options on implicitly created schemas
+ */
+
+function _propagateOptionsToImplicitlyCreatedSchemas(baseSchema, options) {
+  for (const { schema } of baseSchema.childSchemas) {
+    if (!schema.$implicitlyCreated) {
+      continue;
+    }
+    Object.assign(schema.options, options);
+    _propagateOptionsToImplicitlyCreatedSchemas(schema, options);
+  }
+}
+
+/**
+ * Gets a schema option.
+ *
+ * #### Example:
+ *
+ *     schema.get('strict'); // true
+ *     schema.set('strict', false);
+ *     schema.get('strict'); // false
+ *
+ * @param {String} key The name of the Option to get the current value for
+ * @api public
+ * @return {Any} the option's value
+ */
+
+Schema.prototype.get = function(key) {
+  return this.options[key];
+};
+
+const indexTypes = '2d 2dsphere hashed text'.split(' ');
+
+/**
+ * The allowed index types
+ *
+ * @property {String[]} indexTypes
+ * @memberOf Schema
+ * @static
+ * @api public
+ */
+
+Object.defineProperty(Schema, 'indexTypes', {
+  get: function() {
+    return indexTypes;
+  },
+  set: function() {
+    throw new Error('Cannot overwrite Schema.indexTypes');
+  }
+});
+
+/**
+ * Returns a list of indexes that this schema declares, via `schema.index()` or by `index: true` in a path's options.
+ * Indexes are expressed as an array `[spec, options]`.
+ *
+ * #### Example:
+ *
+ *     const userSchema = new Schema({
+ *       email: { type: String, required: true, unique: true },
+ *       registeredAt: { type: Date, index: true }
+ *     });
+ *
+ *     // [ [ { email: 1 }, { unique: true, background: true } ],
+ *     //   [ { registeredAt: 1 }, { background: true } ] ]
+ *     userSchema.indexes();
+ *
+ * [Plugins](https://mongoosejs.com/docs/plugins.html) can use the return value of this function to modify a schema's indexes.
+ * For example, the below plugin makes every index unique by default.
+ *
+ *     function myPlugin(schema) {
+ *       for (const index of schema.indexes()) {
+ *         if (index[1].unique === undefined) {
+ *           index[1].unique = true;
+ *         }
+ *       }
+ *     }
+ *
+ * @api public
+ * @return {Array} list of indexes defined in the schema
+ */
+
+Schema.prototype.indexes = function() {
+  return getIndexes(this);
+};
+
+/**
+ * Creates a virtual type with the given name.
+ *
+ * @param {String} name The name of the Virtual
+ * @param {Object} [options]
+ * @param {String|Model} [options.ref] model name or model instance. Marks this as a [populate virtual](https://mongoosejs.com/docs/populate.html#populate-virtuals).
+ * @param {String|Function} [options.localField] Required for populate virtuals. See [populate virtual docs](https://mongoosejs.com/docs/populate.html#populate-virtuals) for more information.
+ * @param {String|Function} [options.foreignField] Required for populate virtuals. See [populate virtual docs](https://mongoosejs.com/docs/populate.html#populate-virtuals) for more information.
+ * @param {Boolean|Function} [options.justOne=false] Only works with populate virtuals. If [truthy](https://masteringjs.io/tutorials/fundamentals/truthy), will be a single doc or `null`. Otherwise, the populate virtual will be an array.
+ * @param {Boolean} [options.count=false] Only works with populate virtuals. If [truthy](https://masteringjs.io/tutorials/fundamentals/truthy), this populate virtual will contain the number of documents rather than the documents themselves when you `populate()`.
+ * @param {Function|null} [options.get=null] Adds a [getter](https://mongoosejs.com/docs/tutorials/getters-setters.html) to this virtual to transform the populated doc.
+ * @param {Object|Function} [options.match=null] Apply a default [`match` option to populate](https://mongoosejs.com/docs/populate.html#match), adding an additional filter to the populate query.
+ * @param {Boolean} [options.applyToArray=false] If true and the given `name` is a direct child of an array, apply the virtual to the array rather than the elements.
+ * @return {VirtualType}
+ */
+
+Schema.prototype.virtual = function(name, options) {
+  if (name instanceof VirtualType || getConstructorName(name) === 'VirtualType') {
+    return this.virtual(name.path, name.options);
+  }
+  options = new VirtualOptions(options);
+
+  if (utils.hasUserDefinedProperty(options, ['ref', 'refPath'])) {
+    if (options.localField == null) {
+      throw new Error('Reference virtuals require `localField` option');
+    }
+
+    if (options.foreignField == null) {
+      throw new Error('Reference virtuals require `foreignField` option');
+    }
+
+    const virtual = this.virtual(name);
+    virtual.options = options;
+
+    this.pre('init', function virtualPreInit(obj, opts) {
+      if (mpath.has(name, obj)) {
+        const _v = mpath.get(name, obj);
+        if (!this.$$populatedVirtuals) {
+          this.$$populatedVirtuals = {};
+        }
+
+        if (options.justOne || options.count) {
+          this.$$populatedVirtuals[name] = Array.isArray(_v) ?
+            _v[0] :
+            _v;
+        } else {
+          this.$$populatedVirtuals[name] = Array.isArray(_v) ?
+            _v :
+            _v == null ? [] : [_v];
+        }
+
+        if (opts?.hydratedPopulatedDocs && !options.count) {
+          const modelNames = virtual._getModelNamesForPopulate(this);
+          const populatedVal = this.$$populatedVirtuals[name];
+          if (!Array.isArray(populatedVal) && !populatedVal.$__ && modelNames?.length === 1) {
+            const PopulateModel = this.db.model(modelNames[0]);
+            this.$$populatedVirtuals[name] = PopulateModel.hydrate(populatedVal);
+          } else if (Array.isArray(populatedVal) && modelNames?.length === 1) {
+            const PopulateModel = this.db.model(modelNames[0]);
+            for (let i = 0; i < populatedVal.length; ++i) {
+              if (!populatedVal[i].$__) {
+                populatedVal[i] = PopulateModel.hydrate(populatedVal[i]);
+              }
+            }
+          }
+        }
+
+        mpath.unset(name, obj);
+      }
+    });
+
+    virtual.
+      set(function(v) {
+        if (!this.$$populatedVirtuals) {
+          this.$$populatedVirtuals = {};
+        }
+
+        return setPopulatedVirtualValue(
+          this.$$populatedVirtuals,
+          name,
+          v,
+          options
+        );
+      });
+
+    if (typeof options.get === 'function') {
+      virtual.get(options.get);
+    }
+
+    // Workaround for gh-8198: if virtual is under document array, make a fake
+    // virtual. See gh-8210, gh-13189
+    const parts = name.split('.');
+    let cur = parts[0];
+    for (let i = 0; i < parts.length - 1; ++i) {
+      if (this.paths[cur] == null) {
+        continue;
+      }
+
+      if (this.paths[cur].$isMongooseDocumentArray || this.paths[cur].$isSingleNested) {
+        const remnant = parts.slice(i + 1).join('.');
+        this.paths[cur].schema.virtual(remnant, options);
+        break;
+      }
+
+      cur += '.' + parts[i + 1];
+    }
+
+    return virtual;
+  }
+
+  const virtuals = this.virtuals;
+  const parts = name.split('.');
+
+  if (this.pathType(name) === 'real') {
+    throw new Error('Virtual path "' + name + '"' +
+      ' conflicts with a real path in the schema');
+  }
+
+  virtuals[name] = parts.reduce(function(mem, part, i) {
+    mem[part] || (mem[part] = (i === parts.length - 1)
+      ? new VirtualType(options, name)
+      : {});
+    return mem[part];
+  }, this.tree);
+
+  if (options && options.applyToArray && parts.length > 1) {
+    const path = this.path(parts.slice(0, -1).join('.'));
+    if (path && path.$isMongooseArray) {
+      return path.virtual(parts[parts.length - 1], options);
+    } else {
+      throw new MongooseError(`Path "${path}" is not an array`);
+    }
+  }
+
+  return virtuals[name];
+};
+
+/**
+ * Returns the virtual type with the given `name`.
+ *
+ * @param {String} name The name of the Virtual to get
+ * @return {VirtualType|null}
+ */
+
+Schema.prototype.virtualpath = function(name) {
+  return this.virtuals.hasOwnProperty(name) ? this.virtuals[name] : null;
+};
+
+/**
+ * Removes the given `path` (or [`paths`]).
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ name: String, age: Number });
+ *     schema.remove('name');
+ *     schema.path('name'); // Undefined
+ *     schema.path('age'); // SchemaNumber { ... }
+ *
+ * Or as a Array:
+ *
+ *     schema.remove(['name', 'age']);
+ *     schema.path('name'); // Undefined
+ *     schema.path('age'); // Undefined
+ *
+ * @param {String|Array} path The Path(s) to remove
+ * @return {Schema} the Schema instance
+ * @api public
+ */
+Schema.prototype.remove = function(path) {
+  if (typeof path === 'string') {
+    path = [path];
+  }
+  if (Array.isArray(path)) {
+    path.forEach(function(name) {
+      if (this.path(name) == null && !this.nested[name]) {
+        return;
+      }
+      if (this.nested[name]) {
+        const allKeys = Object.keys(this.paths).
+          concat(Object.keys(this.nested));
+        for (const path of allKeys) {
+          if (path.startsWith(name + '.')) {
+            delete this.paths[path];
+            delete this.nested[path];
+            _deletePath(this, path);
+          }
+        }
+
+        delete this.nested[name];
+        _deletePath(this, name);
+        return;
+      }
+
+      delete this.paths[name];
+      _deletePath(this, name);
+    }, this);
+  }
+  return this;
+};
+
+/*!
+ * ignore
+ */
+
+function _deletePath(schema, name) {
+  const pieces = name.split('.');
+  const last = pieces.pop();
+
+  let branch = schema.tree;
+
+  for (const piece of pieces) {
+    branch = branch[piece];
+  }
+
+  delete branch[last];
+}
+
+/**
+ * Removes the given virtual or virtuals from the schema.
+ *
+ * @param {String|Array} path The virutal path(s) to remove.
+ * @returns {Schema} the Schema instance, or a mongoose error if the virtual does not exist.
+ * @api public
+ */
+
+Schema.prototype.removeVirtual = function(path) {
+  if (typeof path === 'string') {
+    path = [path];
+  }
+  if (Array.isArray(path)) {
+    for (const virtual of path) {
+      if (this.virtuals[virtual] == null) {
+        throw new MongooseError(`Attempting to remove virtual "${virtual}" that does not exist.`);
+      }
+    }
+
+    for (const virtual of path) {
+      delete this.paths[virtual];
+      delete this.virtuals[virtual];
+      if (virtual.indexOf('.') !== -1) {
+        mpath.unset(virtual, this.tree);
+      } else {
+        delete this.tree[virtual];
+      }
+    }
+  }
+  return this;
+};
+
+/**
+ * Loads an ES6 class into a schema. Maps [setters](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/set) + [getters](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/get), [static methods](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes/static),
+ * and [instance methods](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes#Class_body_and_method_definitions)
+ * to schema [virtuals](https://mongoosejs.com/docs/guide.html#virtuals),
+ * [statics](https://mongoosejs.com/docs/guide.html#statics), and
+ * [methods](https://mongoosejs.com/docs/guide.html#methods).
+ *
+ * #### Example:
+ *
+ * ```javascript
+ * const md5 = require('md5');
+ * const userSchema = new Schema({ email: String });
+ * class UserClass {
+ *   // `gravatarImage` becomes a virtual
+ *   get gravatarImage() {
+ *     const hash = md5(this.email.toLowerCase());
+ *     return `https://www.gravatar.com/avatar/${hash}`;
+ *   }
+ *
+ *   // `getProfileUrl()` becomes a document method
+ *   getProfileUrl() {
+ *     return `https://mysite.com/${this.email}`;
+ *   }
+ *
+ *   // `findByEmail()` becomes a static
+ *   static findByEmail(email) {
+ *     return this.findOne({ email });
+ *   }
+ * }
+ *
+ * // `schema` will now have a `gravatarImage` virtual, a `getProfileUrl()` method,
+ * // and a `findByEmail()` static
+ * userSchema.loadClass(UserClass);
+ * ```
+ *
+ * @param {Function} model The Class to load
+ * @param {Boolean} [virtualsOnly] if truthy, only pulls virtuals from the class, not methods or statics
+ */
+Schema.prototype.loadClass = function(model, virtualsOnly) {
+  // Stop copying when hit certain base classes
+  if (model === Object.prototype ||
+      model === Function.prototype ||
+      model.prototype.hasOwnProperty('$isMongooseModelPrototype') ||
+      model.prototype.hasOwnProperty('$isMongooseDocumentPrototype')) {
+    return this;
+  }
+
+  this.loadClass(Object.getPrototypeOf(model), virtualsOnly);
+
+  // Add static methods
+  if (!virtualsOnly) {
+    Object.getOwnPropertyNames(model).forEach(function(name) {
+      if (name.match(/^(length|name|prototype|constructor|__proto__)$/)) {
+        return;
+      }
+      const prop = Object.getOwnPropertyDescriptor(model, name);
+      if (prop.hasOwnProperty('value')) {
+        this.static(name, prop.value);
+      }
+    }, this);
+  }
+
+  // Add methods and virtuals
+  Object.getOwnPropertyNames(model.prototype).forEach(function(name) {
+    if (name.match(/^(constructor)$/)) {
+      return;
+    }
+    const method = Object.getOwnPropertyDescriptor(model.prototype, name);
+    if (!virtualsOnly) {
+      if (typeof method.value === 'function') {
+        this.method(name, method.value);
+      }
+    }
+    if (typeof method.get === 'function') {
+      if (this.virtuals[name]) {
+        this.virtuals[name].getters = [];
+      }
+      this.virtual(name).get(method.get);
+    }
+    if (typeof method.set === 'function') {
+      if (this.virtuals[name]) {
+        this.virtuals[name].setters = [];
+      }
+      this.virtual(name).set(method.set);
+    }
+  }, this);
+
+  return this;
+};
+
+/*!
+ * ignore
+ */
+
+Schema.prototype._getSchema = function(path) {
+  const _this = this;
+  const pathschema = _this.path(path);
+  const resultPath = [];
+
+  if (pathschema) {
+    pathschema.$fullPath = path;
+    return pathschema;
+  }
+
+  function search(parts, schema) {
+    let p = parts.length + 1;
+    let foundschema;
+    let trypath;
+
+    while (p--) {
+      trypath = parts.slice(0, p).join('.');
+      foundschema = schema.path(trypath);
+      if (foundschema) {
+        resultPath.push(trypath);
+
+        if (foundschema.caster) {
+          // array of Mixed?
+          if (foundschema.caster instanceof MongooseTypes.Mixed) {
+            foundschema.caster.$fullPath = resultPath.join('.');
+            return foundschema.caster;
+          }
+
+          // Now that we found the array, we need to check if there
+          // are remaining document paths to look up for casting.
+          // Also we need to handle array.$.path since schema.path
+          // doesn't work for that.
+          // If there is no foundschema.schema we are dealing with
+          // a path like array.$
+          if (p !== parts.length) {
+            if (p + 1 === parts.length && foundschema.$embeddedSchemaType && (parts[p] === '$' || isArrayFilter(parts[p]))) {
+              return foundschema.$embeddedSchemaType;
+            }
+
+            if (foundschema.schema) {
+              let ret;
+              if (parts[p] === '$' || isArrayFilter(parts[p])) {
+                if (p + 1 === parts.length) {
+                  // comments.$
+                  return foundschema.$embeddedSchemaType;
+                }
+                // comments.$.comments.$.title
+                ret = search(parts.slice(p + 1), foundschema.schema);
+                if (ret) {
+                  ret.$parentSchemaDocArray = ret.$parentSchemaDocArray ||
+                    (foundschema.schema.$isSingleNested ? null : foundschema);
+                }
+                return ret;
+              }
+              // this is the last path of the selector
+              ret = search(parts.slice(p), foundschema.schema);
+              if (ret) {
+                ret.$parentSchemaDocArray = ret.$parentSchemaDocArray ||
+                  (foundschema.schema.$isSingleNested ? null : foundschema);
+              }
+              return ret;
+            }
+          }
+        } else if (foundschema.$isSchemaMap) {
+          if (p >= parts.length) {
+            return foundschema;
+          }
+          // Any path in the map will be an instance of the map's embedded schematype
+          if (p + 1 >= parts.length) {
+            return foundschema.$__schemaType;
+          }
+
+          if (foundschema.$__schemaType instanceof MongooseTypes.Mixed) {
+            return foundschema.$__schemaType;
+          }
+          if (foundschema.$__schemaType.schema != null) {
+            // Map of docs
+            const ret = search(parts.slice(p + 1), foundschema.$__schemaType.schema);
+            return ret;
+          }
+        }
+
+        foundschema.$fullPath = resultPath.join('.');
+
+        return foundschema;
+      }
+    }
+  }
+
+  // look for arrays
+  const parts = path.split('.');
+  for (let i = 0; i < parts.length; ++i) {
+    if (parts[i] === '$' || isArrayFilter(parts[i])) {
+      // Re: gh-5628, because `schema.path()` doesn't take $ into account.
+      parts[i] = '0';
+    }
+    if (numberRE.test(parts[i])) {
+      parts[i] = '$';
+    }
+  }
+  return search(parts, _this);
+};
+
+/*!
+ * ignore
+ */
+
+Schema.prototype._getPathType = function(path) {
+  const _this = this;
+  const pathschema = _this.path(path);
+
+  if (pathschema) {
+    return 'real';
+  }
+
+  function search(parts, schema) {
+    let p = parts.length + 1,
+        foundschema,
+        trypath;
+
+    while (p--) {
+      trypath = parts.slice(0, p).join('.');
+      foundschema = schema.path(trypath);
+      if (foundschema) {
+        if (foundschema.caster) {
+          // array of Mixed?
+          if (foundschema.caster instanceof MongooseTypes.Mixed) {
+            return { schema: foundschema, pathType: 'mixed' };
+          }
+
+          // Now that we found the array, we need to check if there
+          // are remaining document paths to look up for casting.
+          // Also we need to handle array.$.path since schema.path
+          // doesn't work for that.
+          // If there is no foundschema.schema we are dealing with
+          // a path like array.$
+          if (p !== parts.length && foundschema.schema) {
+            if (parts[p] === '$' || isArrayFilter(parts[p])) {
+              if (p === parts.length - 1) {
+                return { schema: foundschema, pathType: 'nested' };
+              }
+              // comments.$.comments.$.title
+              return search(parts.slice(p + 1), foundschema.schema);
+            }
+            // this is the last path of the selector
+            return search(parts.slice(p), foundschema.schema);
+          }
+          return {
+            schema: foundschema,
+            pathType: foundschema.$isSingleNested ? 'nested' : 'array'
+          };
+        }
+        return { schema: foundschema, pathType: 'real' };
+      } else if (p === parts.length && schema.nested[trypath]) {
+        return { schema: schema, pathType: 'nested' };
+      }
+    }
+    return { schema: foundschema || schema, pathType: 'undefined' };
+  }
+
+  // look for arrays
+  return search(path.split('.'), _this);
+};
+
+/**
+ * Transforms the duplicate key error by checking for duplicate key error messages by path.
+ * If no duplicate key error messages are found, returns the original error.
+ *
+ * @param {Error} error The error to transform
+ * @returns {Error} The transformed error
+ * @api private
+ */
+
+Schema.prototype._transformDuplicateKeyError = function _transformDuplicateKeyError(error) {
+  if (!this._duplicateKeyErrorMessagesByPath) {
+    return error;
+  }
+  if (error.code !== 11000 && error.code !== 11001) {
+    return error;
+  }
+
+  if (error.keyPattern != null) {
+    const keyPattern = error.keyPattern;
+    const keys = Object.keys(keyPattern);
+    if (keys.length !== 1) {
+      return error;
+    }
+    const firstKey = keys[0];
+    if (!this._duplicateKeyErrorMessagesByPath.hasOwnProperty(firstKey)) {
+      return error;
+    }
+    return new MongooseError(this._duplicateKeyErrorMessagesByPath[firstKey], { cause: error });
+  }
+
+  return error;
+};
+
+/*!
+ * ignore
+ */
+
+function isArrayFilter(piece) {
+  return piece.startsWith('$[') && piece.endsWith(']');
+}
+
+/**
+ * Called by `compile()` _right before_ compiling. Good for making any changes to
+ * the schema that should respect options set by plugins, like `id`
+ * @method _preCompile
+ * @memberOf Schema
+ * @instance
+ * @api private
+ */
+
+Schema.prototype._preCompile = function _preCompile() {
+  this.plugin(idGetter, { deduplicate: true });
+};
+
+/*!
+ * Module exports.
+ */
+
+module.exports = exports = Schema;
+
+// require down here because of reference issues
+
+/**
+ * The various built-in Mongoose Schema Types.
+ *
+ * #### Example:
+ *
+ *     const mongoose = require('mongoose');
+ *     const ObjectId = mongoose.Schema.Types.ObjectId;
+ *
+ * #### Types:
+ *
+ * - [String](https://mongoosejs.com/docs/schematypes.html#strings)
+ * - [Number](https://mongoosejs.com/docs/schematypes.html#numbers)
+ * - [Boolean](https://mongoosejs.com/docs/schematypes.html#booleans) | Bool
+ * - [Array](https://mongoosejs.com/docs/schematypes.html#arrays)
+ * - [Buffer](https://mongoosejs.com/docs/schematypes.html#buffers)
+ * - [Date](https://mongoosejs.com/docs/schematypes.html#dates)
+ * - [ObjectId](https://mongoosejs.com/docs/schematypes.html#objectids) | Oid
+ * - [Mixed](https://mongoosejs.com/docs/schematypes.html#mixed)
+ * - [UUID](https://mongoosejs.com/docs/schematypes.html#uuid)
+ * - [BigInt](https://mongoosejs.com/docs/schematypes.html#bigint)
+ * - [Double] (https://mongoosejs.com/docs/schematypes.html#double)
+ * - [Int32](https://mongoosejs.com/docs/schematypes.html#int32)
+ *
+ * Using this exposed access to the `Mixed` SchemaType, we can use them in our schema.
+ *
+ *     const Mixed = mongoose.Schema.Types.Mixed;
+ *     new mongoose.Schema({ _user: Mixed })
+ *
+ * @api public
+ */
+
+Schema.Types = MongooseTypes = require('./schema/index');
+
+/*!
+ * ignore
+ */
+
+exports.ObjectId = MongooseTypes.ObjectId;
diff --git a/backend/node_modules/mongoose/lib/schema/array.js b/backend/node_modules/mongoose/lib/schema/array.js
new file mode 100644
index 0000000..e424731
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/array.js
@@ -0,0 +1,704 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const $exists = require('./operators/exists');
+const $type = require('./operators/type');
+const MongooseError = require('../error/mongooseError');
+const SchemaArrayOptions = require('../options/schemaArrayOptions');
+const SchemaType = require('../schemaType');
+const CastError = SchemaType.CastError;
+const Mixed = require('./mixed');
+const VirtualOptions = require('../options/virtualOptions');
+const VirtualType = require('../virtualType');
+const arrayDepth = require('../helpers/arrayDepth');
+const cast = require('../cast');
+const clone = require('../helpers/clone');
+const getConstructorName = require('../helpers/getConstructorName');
+const isOperator = require('../helpers/query/isOperator');
+const util = require('util');
+const utils = require('../utils');
+const castToNumber = require('./operators/helpers').castToNumber;
+const geospatial = require('./operators/geospatial');
+const getDiscriminatorByValue = require('../helpers/discriminator/getDiscriminatorByValue');
+
+let MongooseArray;
+let EmbeddedDoc;
+
+const isNestedArraySymbol = Symbol('mongoose#isNestedArray');
+const emptyOpts = Object.freeze({});
+
+/**
+ * Array SchemaType constructor
+ *
+ * @param {String} key
+ * @param {SchemaType} cast
+ * @param {Object} options
+ * @param {Object} schemaOptions
+ * @inherits SchemaType
+ * @api public
+ */
+
+function SchemaArray(key, cast, options, schemaOptions) {
+  // lazy load
+  EmbeddedDoc || (EmbeddedDoc = require('../types').Embedded);
+
+  let typeKey = 'type';
+  if (schemaOptions && schemaOptions.typeKey) {
+    typeKey = schemaOptions.typeKey;
+  }
+  this.schemaOptions = schemaOptions;
+
+  if (cast) {
+    let castOptions = {};
+
+    if (utils.isPOJO(cast)) {
+      if (cast[typeKey]) {
+        // support { type: Woot }
+        castOptions = clone(cast); // do not alter user arguments
+        delete castOptions[typeKey];
+        cast = cast[typeKey];
+      } else {
+        cast = Mixed;
+      }
+    }
+
+    if (options != null && options.ref != null && castOptions.ref == null) {
+      castOptions.ref = options.ref;
+    }
+
+    if (cast === Object) {
+      cast = Mixed;
+    }
+
+    // support { type: 'String' }
+    const name = typeof cast === 'string'
+      ? cast
+      : utils.getFunctionName(cast);
+
+    const Types = require('./index.js');
+    const caster = Types.hasOwnProperty(name) ? Types[name] : cast;
+
+    this.casterConstructor = caster;
+
+    if (this.casterConstructor instanceof SchemaArray) {
+      this.casterConstructor[isNestedArraySymbol] = true;
+    }
+
+    if (typeof caster === 'function' &&
+        !caster.$isArraySubdocument &&
+        !caster.$isSchemaMap) {
+      const path = this.caster instanceof EmbeddedDoc ? null : key;
+      this.caster = new caster(path, castOptions);
+    } else {
+      this.caster = caster;
+      if (!(this.caster instanceof EmbeddedDoc)) {
+        this.caster.path = key;
+      }
+    }
+
+    this.$embeddedSchemaType = this.caster;
+  }
+
+  this.$isMongooseArray = true;
+
+  SchemaType.call(this, key, options, 'Array');
+
+  let defaultArr;
+  let fn;
+
+  if (this.defaultValue != null) {
+    defaultArr = this.defaultValue;
+    fn = typeof defaultArr === 'function';
+  }
+
+  if (!('defaultValue' in this) || this.defaultValue != null) {
+    const defaultFn = function() {
+      // Leave it up to `cast()` to convert the array
+      return fn
+        ? defaultArr.call(this)
+        : defaultArr != null
+          ? [].concat(defaultArr)
+          : [];
+    };
+    defaultFn.$runBeforeSetters = !fn;
+    this.default(defaultFn);
+  }
+}
+
+/**
+ * This schema type's name, to defend against minifiers that mangle
+ * function names.
+ *
+ * @api public
+ */
+SchemaArray.schemaName = 'Array';
+
+
+/**
+ * Options for all arrays.
+ *
+ * - `castNonArrays`: `true` by default. If `false`, Mongoose will throw a CastError when a value isn't an array. If `true`, Mongoose will wrap the provided value in an array before casting.
+ *
+ * @static
+ * @api public
+ */
+
+SchemaArray.options = { castNonArrays: true };
+
+/*!
+ * ignore
+ */
+
+SchemaArray.defaultOptions = {};
+
+/**
+ * Sets a default option for all Array instances.
+ *
+ * #### Example:
+ *
+ *     // Make all Array instances have `required` of true by default.
+ *     mongoose.Schema.Array.set('required', true);
+ *
+ *     const User = mongoose.model('User', new Schema({ test: Array }));
+ *     new User({ }).validateSync().errors.test.message; // Path `test` is required.
+ *
+ * @param {String} option The option you'd like to set the value for
+ * @param {Any} value value for option
+ * @return {undefined}
+ * @function set
+ * @api public
+ */
+SchemaArray.set = SchemaType.set;
+
+SchemaArray.setters = [];
+
+/**
+ * Attaches a getter for all Array instances
+ *
+ * @param {Function} getter
+ * @return {this}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaArray.get = SchemaType.get;
+
+/*!
+ * Inherits from SchemaType.
+ */
+SchemaArray.prototype = Object.create(SchemaType.prototype);
+SchemaArray.prototype.constructor = SchemaArray;
+SchemaArray.prototype.OptionsConstructor = SchemaArrayOptions;
+
+/*!
+ * ignore
+ */
+
+SchemaArray._checkRequired = SchemaType.prototype.checkRequired;
+
+/**
+ * Override the function the required validator uses to check whether an array
+ * passes the `required` check.
+ *
+ * #### Example:
+ *
+ *     // Require non-empty array to pass `required` check
+ *     mongoose.Schema.Types.Array.checkRequired(v => Array.isArray(v) && v.length);
+ *
+ *     const M = mongoose.model({ arr: { type: Array, required: true } });
+ *     new M({ arr: [] }).validateSync(); // `null`, validation fails!
+ *
+ * @param {Function} fn
+ * @return {Function}
+ * @function checkRequired
+ * @api public
+ */
+
+SchemaArray.checkRequired = SchemaType.checkRequired;
+
+/*!
+ * Virtuals defined on this array itself.
+ */
+
+SchemaArray.prototype.virtuals = null;
+
+/**
+ * Check if the given value satisfies the `required` validator.
+ *
+ * @param {Any} value
+ * @param {Document} doc
+ * @return {Boolean}
+ * @api public
+ */
+
+SchemaArray.prototype.checkRequired = function checkRequired(value, doc) {
+  if (typeof value === 'object' && SchemaType._isRef(this, value, doc, true)) {
+    return !!value;
+  }
+
+  // `require('util').inherits()` does **not** copy static properties, and
+  // plugins like mongoose-float use `inherits()` for pre-ES6.
+  const _checkRequired = typeof this.constructor.checkRequired === 'function' ?
+    this.constructor.checkRequired() :
+    SchemaArray.checkRequired();
+
+  return _checkRequired(value);
+};
+
+/**
+ * Adds an enum validator if this is an array of strings or numbers. Equivalent to
+ * `SchemaString.prototype.enum()` or `SchemaNumber.prototype.enum()`
+ *
+ * @param {...String|Object} [args] enumeration values
+ * @return {SchemaArray} this
+ */
+
+SchemaArray.prototype.enum = function() {
+  let arr = this;
+  while (true) {
+    const instance = arr &&
+    arr.caster &&
+    arr.caster.instance;
+    if (instance === 'Array') {
+      arr = arr.caster;
+      continue;
+    }
+    if (instance !== 'String' && instance !== 'Number') {
+      throw new Error('`enum` can only be set on an array of strings or numbers ' +
+        ', not ' + instance);
+    }
+    break;
+  }
+
+  let enumArray = arguments;
+  if (!Array.isArray(arguments) && utils.isObject(arguments)) {
+    enumArray = utils.object.vals(enumArray);
+  }
+
+  arr.caster.enum.apply(arr.caster, enumArray);
+  return this;
+};
+
+/**
+ * Overrides the getters application for the population special-case
+ *
+ * @param {Object} value
+ * @param {Object} scope
+ * @api private
+ */
+
+SchemaArray.prototype.applyGetters = function(value, scope) {
+  if (scope != null && scope.$__ != null && scope.$populated(this.path)) {
+    // means the object id was populated
+    return value;
+  }
+
+  const ret = SchemaType.prototype.applyGetters.call(this, value, scope);
+  return ret;
+};
+
+SchemaArray.prototype._applySetters = function(value, scope, init, priorVal) {
+  if (this.casterConstructor.$isMongooseArray &&
+      SchemaArray.options.castNonArrays &&
+      !this[isNestedArraySymbol]) {
+    // Check nesting levels and wrap in array if necessary
+    let depth = 0;
+    let arr = this;
+    while (arr != null &&
+      arr.$isMongooseArray &&
+      !arr.$isMongooseDocumentArray) {
+      ++depth;
+      arr = arr.casterConstructor;
+    }
+
+    // No need to wrap empty arrays
+    if (value != null && value.length !== 0) {
+      const valueDepth = arrayDepth(value);
+      if (valueDepth.min === valueDepth.max && valueDepth.max < depth && valueDepth.containsNonArrayItem) {
+        for (let i = valueDepth.max; i < depth; ++i) {
+          value = [value];
+        }
+      }
+    }
+  }
+
+  return SchemaType.prototype._applySetters.call(this, value, scope, init, priorVal);
+};
+
+/**
+ * Casts values for set().
+ *
+ * @param {Object} value
+ * @param {Document} doc document that triggers the casting
+ * @param {Boolean} init whether this is an initialization cast
+ * @api private
+ */
+
+SchemaArray.prototype.cast = function(value, doc, init, prev, options) {
+  // lazy load
+  MongooseArray || (MongooseArray = require('../types').Array);
+
+  let i;
+  let l;
+
+  if (Array.isArray(value)) {
+    const len = value.length;
+    if (!len && doc) {
+      const indexes = doc.schema.indexedPaths();
+
+      const arrayPath = this.path;
+      for (i = 0, l = indexes.length; i < l; ++i) {
+        const pathIndex = indexes[i][0][arrayPath];
+        if (pathIndex === '2dsphere' || pathIndex === '2d') {
+          return;
+        }
+      }
+
+      // Special case: if this index is on the parent of what looks like
+      // GeoJSON, skip setting the default to empty array re: #1668, #3233
+      const arrayGeojsonPath = this.path.endsWith('.coordinates') ?
+        this.path.substring(0, this.path.lastIndexOf('.')) : null;
+      if (arrayGeojsonPath != null) {
+        for (i = 0, l = indexes.length; i < l; ++i) {
+          const pathIndex = indexes[i][0][arrayGeojsonPath];
+          if (pathIndex === '2dsphere') {
+            return;
+          }
+        }
+      }
+    }
+
+    options = options || emptyOpts;
+
+    let rawValue = utils.isMongooseArray(value) ? value.__array : value;
+    let path = options.path || this.path;
+    if (options.arrayPathIndex != null) {
+      path += '.' + options.arrayPathIndex;
+    }
+    value = MongooseArray(rawValue, path, doc, this);
+    rawValue = value.__array;
+
+    if (init && doc != null && doc.$__ != null && doc.$populated(this.path)) {
+      return value;
+    }
+
+    const caster = this.caster;
+    const isMongooseArray = caster.$isMongooseArray;
+    if (caster && this.casterConstructor !== Mixed) {
+      try {
+        const len = rawValue.length;
+        for (i = 0; i < len; i++) {
+          const opts = {};
+          // Perf: creating `arrayPath` is expensive for large arrays.
+          // We only need `arrayPath` if this is a nested array, so
+          // skip if possible.
+          if (isMongooseArray) {
+            if (options.arrayPath != null) {
+              opts.arrayPathIndex = i;
+            } else if (caster._arrayParentPath != null) {
+              opts.arrayPathIndex = i;
+            }
+          }
+          rawValue[i] = caster.applySetters(rawValue[i], doc, init, void 0, opts);
+        }
+      } catch (e) {
+        // rethrow
+        throw new CastError('[' + e.kind + ']', util.inspect(value), this.path + '.' + i, e, this);
+      }
+    }
+
+    return value;
+  }
+
+  const castNonArraysOption = this.options.castNonArrays != null ? this.options.castNonArrays : SchemaArray.options.castNonArrays;
+  if (init || castNonArraysOption) {
+    // gh-2442: if we're loading this from the db and its not an array, mark
+    // the whole array as modified.
+    if (!!doc && !!init) {
+      doc.markModified(this.path);
+    }
+    return this.cast([value], doc, init);
+  }
+
+  throw new CastError('Array', util.inspect(value), this.path, null, this);
+};
+
+/*!
+ * ignore
+ */
+
+SchemaArray.prototype._castForPopulate = function _castForPopulate(value, doc) {
+  // lazy load
+  MongooseArray || (MongooseArray = require('../types').Array);
+
+  if (Array.isArray(value)) {
+    let i;
+    const rawValue = value.__array ? value.__array : value;
+    const len = rawValue.length;
+
+    const caster = this.caster;
+    if (caster && this.casterConstructor !== Mixed) {
+      try {
+        for (i = 0; i < len; i++) {
+          const opts = {};
+          // Perf: creating `arrayPath` is expensive for large arrays.
+          // We only need `arrayPath` if this is a nested array, so
+          // skip if possible.
+          if (caster.$isMongooseArray && caster._arrayParentPath != null) {
+            opts.arrayPathIndex = i;
+          }
+
+          rawValue[i] = caster.cast(rawValue[i], doc, false, void 0, opts);
+        }
+      } catch (e) {
+        // rethrow
+        throw new CastError('[' + e.kind + ']', util.inspect(value), this.path + '.' + i, e, this);
+      }
+    }
+
+    return value;
+  }
+
+  throw new CastError('Array', util.inspect(value), this.path, null, this);
+};
+
+SchemaArray.prototype.$toObject = SchemaArray.prototype.toObject;
+
+/*!
+ * ignore
+ */
+
+SchemaArray.prototype.discriminator = function(...args) {
+  let arr = this;
+  while (arr.$isMongooseArray && !arr.$isMongooseDocumentArray) {
+    arr = arr.casterConstructor;
+    if (arr == null || typeof arr === 'function') {
+      throw new MongooseError('You can only add an embedded discriminator on ' +
+        'a document array, ' + this.path + ' is a plain array');
+    }
+  }
+  return arr.discriminator(...args);
+};
+
+/*!
+ * ignore
+ */
+
+SchemaArray.prototype.clone = function() {
+  const options = Object.assign({}, this.options);
+  const schematype = new this.constructor(this.path, this.caster, options, this.schemaOptions);
+  schematype.validators = this.validators.slice();
+  if (this.requiredValidator !== undefined) {
+    schematype.requiredValidator = this.requiredValidator;
+  }
+  return schematype;
+};
+
+SchemaArray.prototype._castForQuery = function(val, context) {
+  let Constructor = this.casterConstructor;
+
+  if (val &&
+      Constructor.discriminators &&
+      Constructor.schema &&
+      Constructor.schema.options &&
+      Constructor.schema.options.discriminatorKey) {
+    if (typeof val[Constructor.schema.options.discriminatorKey] === 'string' &&
+        Constructor.discriminators[val[Constructor.schema.options.discriminatorKey]]) {
+      Constructor = Constructor.discriminators[val[Constructor.schema.options.discriminatorKey]];
+    } else {
+      const constructorByValue = getDiscriminatorByValue(Constructor.discriminators, val[Constructor.schema.options.discriminatorKey]);
+      if (constructorByValue) {
+        Constructor = constructorByValue;
+      }
+    }
+  }
+
+  const proto = this.casterConstructor.prototype;
+  const protoCastForQuery = proto && proto.castForQuery;
+  const protoCast = proto && proto.cast;
+  const constructorCastForQuery = Constructor.castForQuery;
+  const caster = this.caster;
+
+  if (Array.isArray(val)) {
+    this.setters.reverse().forEach(setter => {
+      val = setter.call(this, val, this);
+    });
+    val = val.map(function(v) {
+      if (utils.isObject(v) && v.$elemMatch) {
+        return v;
+      }
+      if (protoCastForQuery) {
+        v = protoCastForQuery.call(caster, null, v, context);
+        return v;
+      } else if (protoCast) {
+        v = protoCast.call(caster, v);
+        return v;
+      } else if (constructorCastForQuery) {
+        v = constructorCastForQuery.call(caster, null, v, context);
+        return v;
+      }
+      if (v != null) {
+        v = new Constructor(v);
+        return v;
+      }
+      return v;
+    });
+  } else if (protoCastForQuery) {
+    val = protoCastForQuery.call(caster, null, val, context);
+  } else if (protoCast) {
+    val = protoCast.call(caster, val);
+  } else if (constructorCastForQuery) {
+    val = constructorCastForQuery.call(caster, null, val, context);
+  } else if (val != null) {
+    val = new Constructor(val);
+  }
+
+  return val;
+};
+
+/**
+ * Casts values for queries.
+ *
+ * @param {String} $conditional
+ * @param {any} [value]
+ * @api private
+ */
+
+SchemaArray.prototype.castForQuery = function($conditional, val, context) {
+  let handler;
+
+  if ($conditional != null) {
+    handler = this.$conditionalHandlers[$conditional];
+
+    if (!handler) {
+      throw new Error('Can\'t use ' + $conditional + ' with Array.');
+    }
+
+    return handler.call(this, val, context);
+  } else {
+    return this._castForQuery(val, context);
+  }
+};
+
+/**
+ * Add a virtual to this array. Specifically to this array, not the individual elements.
+ *
+ * @param {String} name
+ * @param {Object} [options]
+ * @api private
+ */
+
+SchemaArray.prototype.virtual = function virtual(name, options) {
+  if (name instanceof VirtualType || getConstructorName(name) === 'VirtualType') {
+    return this.virtual(name.path, name.options);
+  }
+  options = new VirtualOptions(options);
+
+  if (utils.hasUserDefinedProperty(options, ['ref', 'refPath'])) {
+    throw new MongooseError('Cannot set populate virtual as a property of an array');
+  }
+
+  const virtual = new VirtualType(options, name);
+  if (this.virtuals === null) {
+    this.virtuals = {};
+  }
+  this.virtuals[name] = virtual;
+  return virtual;
+};
+
+function cast$all(val, context) {
+  if (!Array.isArray(val)) {
+    val = [val];
+  }
+
+  val = val.map((v) => {
+    if (!utils.isObject(v)) {
+      return v;
+    }
+    if (v.$elemMatch != null) {
+      return { $elemMatch: cast(this.casterConstructor.schema, v.$elemMatch, null, this && this.$$context) };
+    }
+
+    const o = {};
+    o[this.path] = v;
+    return cast(this.casterConstructor.schema, o, null, this && this.$$context)[this.path];
+  }, this);
+
+  return this.castForQuery(null, val, context);
+}
+
+function cast$elemMatch(val, context) {
+  const keys = Object.keys(val);
+  const numKeys = keys.length;
+  for (let i = 0; i < numKeys; ++i) {
+    const key = keys[i];
+    const value = val[key];
+    if (isOperator(key) && value != null) {
+      val[key] = this.castForQuery(key, value, context);
+    }
+  }
+
+  return val;
+}
+
+const handle = SchemaArray.prototype.$conditionalHandlers = {};
+
+handle.$all = cast$all;
+handle.$options = String;
+handle.$elemMatch = cast$elemMatch;
+handle.$geoIntersects = geospatial.cast$geoIntersects;
+handle.$or = createLogicalQueryOperatorHandler('$or');
+handle.$and = createLogicalQueryOperatorHandler('$and');
+handle.$nor = createLogicalQueryOperatorHandler('$nor');
+
+function createLogicalQueryOperatorHandler(op) {
+  return function logicalQueryOperatorHandler(val, context) {
+    if (!Array.isArray(val)) {
+      throw new TypeError('conditional ' + op + ' requires an array');
+    }
+
+    const ret = [];
+    for (const obj of val) {
+      ret.push(cast(this.casterConstructor.schema ?? context.schema, obj, null, this && this.$$context));
+    }
+
+    return ret;
+  };
+}
+
+handle.$near =
+handle.$nearSphere = geospatial.cast$near;
+
+handle.$within =
+handle.$geoWithin = geospatial.cast$within;
+
+handle.$size =
+handle.$minDistance =
+handle.$maxDistance = castToNumber;
+
+handle.$exists = $exists;
+handle.$type = $type;
+
+handle.$eq =
+handle.$gt =
+handle.$gte =
+handle.$lt =
+handle.$lte =
+handle.$not =
+handle.$regex =
+handle.$ne = SchemaArray.prototype._castForQuery;
+
+// `$in` is special because you can also include an empty array in the query
+// like `$in: [1, []]`, see gh-5913
+handle.$nin = SchemaType.prototype.$conditionalHandlers.$nin;
+handle.$in = SchemaType.prototype.$conditionalHandlers.$in;
+
+/*!
+ * Module exports.
+ */
+
+module.exports = SchemaArray;
diff --git a/backend/node_modules/mongoose/lib/schema/bigint.js b/backend/node_modules/mongoose/lib/schema/bigint.js
new file mode 100644
index 0000000..4dcebcb
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/bigint.js
@@ -0,0 +1,247 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const CastError = require('../error/cast');
+const SchemaType = require('../schemaType');
+const castBigInt = require('../cast/bigint');
+
+/**
+ * BigInt SchemaType constructor.
+ *
+ * @param {String} path
+ * @param {Object} options
+ * @inherits SchemaType
+ * @api public
+ */
+
+function SchemaBigInt(path, options) {
+  SchemaType.call(this, path, options, 'BigInt');
+}
+
+/**
+ * This schema type's name, to defend against minifiers that mangle
+ * function names.
+ *
+ * @api public
+ */
+SchemaBigInt.schemaName = 'BigInt';
+
+SchemaBigInt.defaultOptions = {};
+
+/*!
+ * Inherits from SchemaType.
+ */
+SchemaBigInt.prototype = Object.create(SchemaType.prototype);
+SchemaBigInt.prototype.constructor = SchemaBigInt;
+
+/*!
+ * ignore
+ */
+
+SchemaBigInt._cast = castBigInt;
+
+/**
+ * Sets a default option for all BigInt instances.
+ *
+ * #### Example:
+ *
+ *     // Make all bigints required by default
+ *     mongoose.Schema.BigInt.set('required', true);
+ *
+ * @param {String} option The option you'd like to set the value for
+ * @param {Any} value value for option
+ * @return {undefined}
+ * @function set
+ * @static
+ * @api public
+ */
+
+SchemaBigInt.set = SchemaType.set;
+
+SchemaBigInt.setters = [];
+
+/**
+ * Attaches a getter for all BigInt instances
+ *
+ * #### Example:
+ *
+ *     // Convert bigints to numbers
+ *     mongoose.Schema.BigInt.get(v => v == null ? v : Number(v));
+ *
+ * @param {Function} getter
+ * @return {this}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaBigInt.get = SchemaType.get;
+
+/**
+ * Get/set the function used to cast arbitrary values to bigints.
+ *
+ * #### Example:
+ *
+ *     // Make Mongoose cast empty string '' to false.
+ *     const original = mongoose.Schema.Types.BigInt.cast();
+ *     mongoose.Schema.BigInt.cast(v => {
+ *       if (v === '') {
+ *         return false;
+ *       }
+ *       return original(v);
+ *     });
+ *
+ *     // Or disable casting entirely
+ *     mongoose.Schema.BigInt.cast(false);
+ *
+ * @param {Function} caster
+ * @return {Function}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaBigInt.cast = function cast(caster) {
+  if (arguments.length === 0) {
+    return this._cast;
+  }
+  if (caster === false) {
+    caster = this._defaultCaster;
+  }
+  this._cast = caster;
+
+  return this._cast;
+};
+
+/*!
+ * ignore
+ */
+
+SchemaBigInt._checkRequired = v => v != null;
+
+/**
+ * Override the function the required validator uses to check whether a value
+ * passes the `required` check.
+ *
+ * @param {Function} fn
+ * @return {Function}
+ * @function checkRequired
+ * @static
+ * @api public
+ */
+
+SchemaBigInt.checkRequired = SchemaType.checkRequired;
+
+/**
+ * Check if the given value satisfies a required validator.
+ *
+ * @param {Any} value
+ * @return {Boolean}
+ * @api public
+ */
+
+SchemaBigInt.prototype.checkRequired = function(value) {
+  return this.constructor._checkRequired(value);
+};
+
+/**
+ * Casts to bigint
+ *
+ * @param {Object} value
+ * @param {Object} model this value is optional
+ * @api private
+ */
+
+SchemaBigInt.prototype.cast = function(value) {
+  let castBigInt;
+  if (typeof this._castFunction === 'function') {
+    castBigInt = this._castFunction;
+  } else if (typeof this.constructor.cast === 'function') {
+    castBigInt = this.constructor.cast();
+  } else {
+    castBigInt = SchemaBigInt.cast();
+  }
+
+  try {
+    return castBigInt(value);
+  } catch (error) {
+    throw new CastError('BigInt', value, this.path, error, this);
+  }
+};
+
+/*!
+ * ignore
+ */
+
+SchemaBigInt.$conditionalHandlers = {
+  ...SchemaType.prototype.$conditionalHandlers,
+  $gt: handleSingle,
+  $gte: handleSingle,
+  $lt: handleSingle,
+  $lte: handleSingle
+};
+
+/*!
+ * ignore
+ */
+
+function handleSingle(val, context) {
+  return this.castForQuery(null, val, context);
+}
+
+/**
+ * Casts contents for queries.
+ *
+ * @param {String} $conditional
+ * @param {any} val
+ * @api private
+ */
+
+SchemaBigInt.prototype.castForQuery = function($conditional, val, context) {
+  let handler;
+  if ($conditional != null) {
+    handler = SchemaBigInt.$conditionalHandlers[$conditional];
+
+    if (handler) {
+      return handler.call(this, val);
+    }
+
+    return this.applySetters(val, context);
+  }
+
+  try {
+    return this.applySetters(val, context);
+  } catch (err) {
+    if (err instanceof CastError && err.path === this.path && this.$fullPath != null) {
+      err.path = this.$fullPath;
+    }
+    throw err;
+  }
+};
+
+/**
+ *
+ * @api private
+ */
+
+SchemaBigInt.prototype._castNullish = function _castNullish(v) {
+  if (typeof v === 'undefined') {
+    return v;
+  }
+  const castBigInt = typeof this.constructor.cast === 'function' ?
+    this.constructor.cast() :
+    SchemaBigInt.cast();
+  if (castBigInt == null) {
+    return v;
+  }
+  return v;
+};
+
+/*!
+ * Module exports.
+ */
+
+module.exports = SchemaBigInt;
diff --git a/backend/node_modules/mongoose/lib/schema/boolean.js b/backend/node_modules/mongoose/lib/schema/boolean.js
new file mode 100644
index 0000000..1cbade0
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/boolean.js
@@ -0,0 +1,297 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const CastError = require('../error/cast');
+const SchemaType = require('../schemaType');
+const castBoolean = require('../cast/boolean');
+
+/**
+ * Boolean SchemaType constructor.
+ *
+ * @param {String} path
+ * @param {Object} options
+ * @inherits SchemaType
+ * @api public
+ */
+
+function SchemaBoolean(path, options) {
+  SchemaType.call(this, path, options, 'Boolean');
+}
+
+/**
+ * This schema type's name, to defend against minifiers that mangle
+ * function names.
+ *
+ * @api public
+ */
+SchemaBoolean.schemaName = 'Boolean';
+
+SchemaBoolean.defaultOptions = {};
+
+/*!
+ * Inherits from SchemaType.
+ */
+SchemaBoolean.prototype = Object.create(SchemaType.prototype);
+SchemaBoolean.prototype.constructor = SchemaBoolean;
+
+/*!
+ * ignore
+ */
+
+SchemaBoolean._cast = castBoolean;
+
+/**
+ * Sets a default option for all Boolean instances.
+ *
+ * #### Example:
+ *
+ *     // Make all booleans have `default` of false.
+ *     mongoose.Schema.Boolean.set('default', false);
+ *
+ *     const Order = mongoose.model('Order', new Schema({ isPaid: Boolean }));
+ *     new Order({ }).isPaid; // false
+ *
+ * @param {String} option The option you'd like to set the value for
+ * @param {Any} value value for option
+ * @return {undefined}
+ * @function set
+ * @static
+ * @api public
+ */
+
+SchemaBoolean.set = SchemaType.set;
+
+SchemaBoolean.setters = [];
+
+/**
+ * Attaches a getter for all Boolean instances
+ *
+ * #### Example:
+ *
+ *     mongoose.Schema.Boolean.get(v => v === true ? 'yes' : 'no');
+ *
+ *     const Order = mongoose.model('Order', new Schema({ isPaid: Boolean }));
+ *     new Order({ isPaid: false }).isPaid; // 'no'
+ *
+ * @param {Function} getter
+ * @return {this}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaBoolean.get = SchemaType.get;
+
+/**
+ * Get/set the function used to cast arbitrary values to booleans.
+ *
+ * #### Example:
+ *
+ *     // Make Mongoose cast empty string '' to false.
+ *     const original = mongoose.Schema.Boolean.cast();
+ *     mongoose.Schema.Boolean.cast(v => {
+ *       if (v === '') {
+ *         return false;
+ *       }
+ *       return original(v);
+ *     });
+ *
+ *     // Or disable casting entirely
+ *     mongoose.Schema.Boolean.cast(false);
+ *
+ * @param {Function} caster
+ * @return {Function}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaBoolean.cast = function cast(caster) {
+  if (arguments.length === 0) {
+    return this._cast;
+  }
+  if (caster === false) {
+    caster = this._defaultCaster;
+  }
+  this._cast = caster;
+
+  return this._cast;
+};
+
+/*!
+ * ignore
+ */
+
+SchemaBoolean._defaultCaster = v => {
+  if (v != null && typeof v !== 'boolean') {
+    throw new Error();
+  }
+  return v;
+};
+
+/*!
+ * ignore
+ */
+
+SchemaBoolean._checkRequired = v => v === true || v === false;
+
+/**
+ * Override the function the required validator uses to check whether a boolean
+ * passes the `required` check.
+ *
+ * @param {Function} fn
+ * @return {Function}
+ * @function checkRequired
+ * @static
+ * @api public
+ */
+
+SchemaBoolean.checkRequired = SchemaType.checkRequired;
+
+/**
+ * Check if the given value satisfies a required validator. For a boolean
+ * to satisfy a required validator, it must be strictly equal to true or to
+ * false.
+ *
+ * @param {Any} value
+ * @return {Boolean}
+ * @api public
+ */
+
+SchemaBoolean.prototype.checkRequired = function(value) {
+  return this.constructor._checkRequired(value);
+};
+
+/**
+ * Configure which values get casted to `true`.
+ *
+ * #### Example:
+ *
+ *     const M = mongoose.model('Test', new Schema({ b: Boolean }));
+ *     new M({ b: 'affirmative' }).b; // undefined
+ *     mongoose.Schema.Boolean.convertToTrue.add('affirmative');
+ *     new M({ b: 'affirmative' }).b; // true
+ *
+ * @property convertToTrue
+ * @static
+ * @memberOf SchemaBoolean
+ * @type {Set}
+ * @api public
+ */
+
+Object.defineProperty(SchemaBoolean, 'convertToTrue', {
+  get: () => castBoolean.convertToTrue,
+  set: v => { castBoolean.convertToTrue = v; }
+});
+
+/**
+ * Configure which values get casted to `false`.
+ *
+ * #### Example:
+ *
+ *     const M = mongoose.model('Test', new Schema({ b: Boolean }));
+ *     new M({ b: 'nay' }).b; // undefined
+ *     mongoose.Schema.Types.Boolean.convertToFalse.add('nay');
+ *     new M({ b: 'nay' }).b; // false
+ *
+ * @property convertToFalse
+ * @static
+ * @memberOf SchemaBoolean
+ * @type {Set}
+ * @api public
+ */
+
+Object.defineProperty(SchemaBoolean, 'convertToFalse', {
+  get: () => castBoolean.convertToFalse,
+  set: v => { castBoolean.convertToFalse = v; }
+});
+
+/**
+ * Casts to boolean
+ *
+ * @param {Object} value
+ * @param {Object} model this value is optional
+ * @api private
+ */
+
+SchemaBoolean.prototype.cast = function(value) {
+  let castBoolean;
+  if (typeof this._castFunction === 'function') {
+    castBoolean = this._castFunction;
+  } else if (typeof this.constructor.cast === 'function') {
+    castBoolean = this.constructor.cast();
+  } else {
+    castBoolean = SchemaBoolean.cast();
+  }
+
+  try {
+    return castBoolean(value);
+  } catch (error) {
+    throw new CastError('Boolean', value, this.path, error, this);
+  }
+};
+
+SchemaBoolean.$conditionalHandlers = { ...SchemaType.prototype.$conditionalHandlers };
+
+/**
+ * Casts contents for queries.
+ *
+ * @param {String} $conditional
+ * @param {any} val
+ * @api private
+ */
+
+SchemaBoolean.prototype.castForQuery = function($conditional, val, context) {
+  let handler;
+  if ($conditional != null) {
+    handler = SchemaBoolean.$conditionalHandlers[$conditional];
+
+    if (handler) {
+      return handler.call(this, val);
+    }
+
+    return this.applySetters(val, context);
+  }
+
+  try {
+    return this.applySetters(val, context);
+  } catch (err) {
+    if (err instanceof CastError && err.path === this.path && this.$fullPath != null) {
+      err.path = this.$fullPath;
+    }
+    throw err;
+  }
+};
+
+/**
+ *
+ * @api private
+ */
+
+SchemaBoolean.prototype._castNullish = function _castNullish(v) {
+  if (typeof v === 'undefined') {
+    return v;
+  }
+  const castBoolean = typeof this.constructor.cast === 'function' ?
+    this.constructor.cast() :
+    SchemaBoolean.cast();
+  if (castBoolean == null) {
+    return v;
+  }
+  if (castBoolean.convertToFalse instanceof Set && castBoolean.convertToFalse.has(v)) {
+    return false;
+  }
+  if (castBoolean.convertToTrue instanceof Set && castBoolean.convertToTrue.has(v)) {
+    return true;
+  }
+  return v;
+};
+
+/*!
+ * Module exports.
+ */
+
+module.exports = SchemaBoolean;
diff --git a/backend/node_modules/mongoose/lib/schema/buffer.js b/backend/node_modules/mongoose/lib/schema/buffer.js
new file mode 100644
index 0000000..e5cec2e
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/buffer.js
@@ -0,0 +1,307 @@
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const MongooseBuffer = require('../types/buffer');
+const SchemaBufferOptions = require('../options/schemaBufferOptions');
+const SchemaType = require('../schemaType');
+const handleBitwiseOperator = require('./operators/bitwise');
+const utils = require('../utils');
+
+const Binary = MongooseBuffer.Binary;
+const CastError = SchemaType.CastError;
+
+/**
+ * Buffer SchemaType constructor
+ *
+ * @param {String} key
+ * @param {Object} options
+ * @inherits SchemaType
+ * @api public
+ */
+
+function SchemaBuffer(key, options) {
+  SchemaType.call(this, key, options, 'Buffer');
+}
+
+/**
+ * This schema type's name, to defend against minifiers that mangle
+ * function names.
+ *
+ * @api public
+ */
+SchemaBuffer.schemaName = 'Buffer';
+
+SchemaBuffer.defaultOptions = {};
+
+/*!
+ * Inherits from SchemaType.
+ */
+SchemaBuffer.prototype = Object.create(SchemaType.prototype);
+SchemaBuffer.prototype.constructor = SchemaBuffer;
+SchemaBuffer.prototype.OptionsConstructor = SchemaBufferOptions;
+
+/*!
+ * ignore
+ */
+
+SchemaBuffer._checkRequired = v => !!(v && v.length);
+
+/**
+ * Sets a default option for all Buffer instances.
+ *
+ * #### Example:
+ *
+ *     // Make all buffers have `required` of true by default.
+ *     mongoose.Schema.Buffer.set('required', true);
+ *
+ *     const User = mongoose.model('User', new Schema({ test: Buffer }));
+ *     new User({ }).validateSync().errors.test.message; // Path `test` is required.
+ *
+ * @param {String} option The option you'd like to set the value for
+ * @param {Any} value value for option
+ * @return {undefined}
+ * @function set
+ * @static
+ * @api public
+ */
+
+SchemaBuffer.set = SchemaType.set;
+
+SchemaBuffer.setters = [];
+
+/**
+ * Attaches a getter for all Buffer instances
+ *
+ * #### Example:
+ *
+ *     // Always convert to string when getting an ObjectId
+ *     mongoose.Schema.Types.Buffer.get(v => v.toString('hex'));
+ *
+ *     const Model = mongoose.model('Test', new Schema({ buf: Buffer } }));
+ *     typeof (new Model({ buf: Buffer.fromString('hello') }).buf); // 'string'
+ *
+ * @param {Function} getter
+ * @return {this}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaBuffer.get = SchemaType.get;
+
+/**
+ * Override the function the required validator uses to check whether a string
+ * passes the `required` check.
+ *
+ * #### Example:
+ *
+ *     // Allow empty strings to pass `required` check
+ *     mongoose.Schema.Types.String.checkRequired(v => v != null);
+ *
+ *     const M = mongoose.model({ buf: { type: Buffer, required: true } });
+ *     new M({ buf: Buffer.from('') }).validateSync(); // validation passes!
+ *
+ * @param {Function} fn
+ * @return {Function}
+ * @function checkRequired
+ * @static
+ * @api public
+ */
+
+SchemaBuffer.checkRequired = SchemaType.checkRequired;
+
+/**
+ * Check if the given value satisfies a required validator. To satisfy a
+ * required validator, a buffer must not be null or undefined and have
+ * non-zero length.
+ *
+ * @param {Any} value
+ * @param {Document} doc
+ * @return {Boolean}
+ * @api public
+ */
+
+SchemaBuffer.prototype.checkRequired = function(value, doc) {
+  if (SchemaType._isRef(this, value, doc, true)) {
+    return !!value;
+  }
+  return this.constructor._checkRequired(value);
+};
+
+/**
+ * Casts contents
+ *
+ * @param {Object} value
+ * @param {Document} doc document that triggers the casting
+ * @param {Boolean} init
+ * @api private
+ */
+
+SchemaBuffer.prototype.cast = function(value, doc, init) {
+  let ret;
+  if (SchemaType._isRef(this, value, doc, init)) {
+    if (value && value.isMongooseBuffer) {
+      return value;
+    }
+
+    if (Buffer.isBuffer(value)) {
+      if (!value || !value.isMongooseBuffer) {
+        value = new MongooseBuffer(value, [this.path, doc]);
+        if (this.options.subtype != null) {
+          value._subtype = this.options.subtype;
+        }
+      }
+      return value;
+    }
+
+    if (value instanceof Binary) {
+      ret = new MongooseBuffer(value.value(true), [this.path, doc]);
+      if (typeof value.sub_type !== 'number') {
+        throw new CastError('Buffer', value, this.path, null, this);
+      }
+      ret._subtype = value.sub_type;
+      return ret;
+    }
+
+    if (value == null || utils.isNonBuiltinObject(value)) {
+      return this._castRef(value, doc, init);
+    }
+  }
+
+  // documents
+  if (value && value._id) {
+    value = value._id;
+  }
+
+  if (value && value.isMongooseBuffer) {
+    return value;
+  }
+
+  if (Buffer.isBuffer(value)) {
+    if (!value || !value.isMongooseBuffer) {
+      value = new MongooseBuffer(value, [this.path, doc]);
+      if (this.options.subtype != null) {
+        value._subtype = this.options.subtype;
+      }
+    }
+    return value;
+  }
+
+  if (value instanceof Binary) {
+    ret = new MongooseBuffer(value.value(true), [this.path, doc]);
+    if (typeof value.sub_type !== 'number') {
+      throw new CastError('Buffer', value, this.path, null, this);
+    }
+    ret._subtype = value.sub_type;
+    return ret;
+  }
+
+  if (value === null) {
+    return value;
+  }
+
+
+  const type = typeof value;
+  if (
+    type === 'string' || type === 'number' || Array.isArray(value) ||
+    (type === 'object' && value.type === 'Buffer' && Array.isArray(value.data)) // gh-6863
+  ) {
+    if (type === 'number') {
+      value = [value];
+    }
+    ret = new MongooseBuffer(value, [this.path, doc]);
+    if (this.options.subtype != null) {
+      ret._subtype = this.options.subtype;
+    }
+    return ret;
+  }
+
+  if (utils.isPOJO(value) && (value.$binary instanceof Binary || typeof value.$binary === 'string')) {
+    const buf = this.cast(Buffer.from(value.$binary, 'base64'));
+    if (value.$type != null) {
+      buf._subtype = value.$type;
+      return buf;
+    }
+  }
+
+  throw new CastError('Buffer', value, this.path, null, this);
+};
+
+/**
+ * Sets the default [subtype](https://studio3t.com/whats-new/best-practices-uuid-mongodb/)
+ * for this buffer. You can find a [list of allowed subtypes here](https://api.mongodb.com/python/current/api/bson/binary.html).
+ *
+ * #### Example:
+ *
+ *     const s = new Schema({ uuid: { type: Buffer, subtype: 4 });
+ *     const M = db.model('M', s);
+ *     const m = new M({ uuid: 'test string' });
+ *     m.uuid._subtype; // 4
+ *
+ * @param {Number} subtype the default subtype
+ * @return {SchemaType} this
+ * @api public
+ */
+
+SchemaBuffer.prototype.subtype = function(subtype) {
+  this.options.subtype = subtype;
+  return this;
+};
+
+/*!
+ * ignore
+ */
+function handleSingle(val, context) {
+  return this.castForQuery(null, val, context);
+}
+
+SchemaBuffer.prototype.$conditionalHandlers = {
+  ...SchemaType.prototype.$conditionalHandlers,
+  $bitsAllClear: handleBitwiseOperator,
+  $bitsAnyClear: handleBitwiseOperator,
+  $bitsAllSet: handleBitwiseOperator,
+  $bitsAnySet: handleBitwiseOperator,
+  $gt: handleSingle,
+  $gte: handleSingle,
+  $lt: handleSingle,
+  $lte: handleSingle
+};
+
+/**
+ * Casts contents for queries.
+ *
+ * @param {String} $conditional
+ * @param {any} [value]
+ * @api private
+ */
+
+SchemaBuffer.prototype.castForQuery = function($conditional, val, context) {
+  let handler;
+  if ($conditional != null) {
+    handler = this.$conditionalHandlers[$conditional];
+    if (!handler) {
+      throw new Error('Can\'t use ' + $conditional + ' with Buffer.');
+    }
+    return handler.call(this, val);
+  }
+
+  let casted;
+  try {
+    casted = this.applySetters(val, context);
+  } catch (err) {
+    if (err instanceof CastError && err.path === this.path && this.$fullPath != null) {
+      err.path = this.$fullPath;
+    }
+    throw err;
+  }
+  return casted ? casted.toObject({ transform: false, virtuals: false }) : casted;
+};
+
+/*!
+ * Module exports.
+ */
+
+module.exports = SchemaBuffer;
diff --git a/backend/node_modules/mongoose/lib/schema/date.js b/backend/node_modules/mongoose/lib/schema/date.js
new file mode 100644
index 0000000..6cbfee8
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/date.js
@@ -0,0 +1,433 @@
+/*!
+ * Module requirements.
+ */
+
+'use strict';
+
+const MongooseError = require('../error/index');
+const SchemaDateOptions = require('../options/schemaDateOptions');
+const SchemaType = require('../schemaType');
+const castDate = require('../cast/date');
+const getConstructorName = require('../helpers/getConstructorName');
+const utils = require('../utils');
+
+const CastError = SchemaType.CastError;
+
+/**
+ * Date SchemaType constructor.
+ *
+ * @param {String} key
+ * @param {Object} options
+ * @inherits SchemaType
+ * @api public
+ */
+
+function SchemaDate(key, options) {
+  SchemaType.call(this, key, options, 'Date');
+}
+
+/**
+ * This schema type's name, to defend against minifiers that mangle
+ * function names.
+ *
+ * @api public
+ */
+SchemaDate.schemaName = 'Date';
+
+SchemaDate.defaultOptions = {};
+
+/*!
+ * Inherits from SchemaType.
+ */
+SchemaDate.prototype = Object.create(SchemaType.prototype);
+SchemaDate.prototype.constructor = SchemaDate;
+SchemaDate.prototype.OptionsConstructor = SchemaDateOptions;
+
+/*!
+ * ignore
+ */
+
+SchemaDate._cast = castDate;
+
+/**
+ * Sets a default option for all Date instances.
+ *
+ * #### Example:
+ *
+ *     // Make all dates have `required` of true by default.
+ *     mongoose.Schema.Date.set('required', true);
+ *
+ *     const User = mongoose.model('User', new Schema({ test: Date }));
+ *     new User({ }).validateSync().errors.test.message; // Path `test` is required.
+ *
+ * @param {String} option The option you'd like to set the value for
+ * @param {Any} value value for option
+ * @return {undefined}
+ * @function set
+ * @static
+ * @api public
+ */
+
+SchemaDate.set = SchemaType.set;
+
+SchemaDate.setters = [];
+
+/**
+ * Attaches a getter for all Date instances
+ *
+ * #### Example:
+ *
+ *     // Always convert Dates to string
+ *     mongoose.Date.get(v => v.toString());
+ *
+ *     const Model = mongoose.model('Test', new Schema({ date: { type: Date, default: () => new Date() } }));
+ *     typeof (new Model({}).date); // 'string'
+ *
+ * @param {Function} getter
+ * @return {this}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaDate.get = SchemaType.get;
+
+/**
+ * Get/set the function used to cast arbitrary values to dates.
+ *
+ * #### Example:
+ *
+ *     // Mongoose converts empty string '' into `null` for date types. You
+ *     // can create a custom caster to disable it.
+ *     const original = mongoose.Schema.Types.Date.cast();
+ *     mongoose.Schema.Types.Date.cast(v => {
+ *       assert.ok(v !== '');
+ *       return original(v);
+ *     });
+ *
+ *     // Or disable casting entirely
+ *     mongoose.Schema.Types.Date.cast(false);
+ *
+ * @param {Function} caster
+ * @return {Function}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaDate.cast = function cast(caster) {
+  if (arguments.length === 0) {
+    return this._cast;
+  }
+  if (caster === false) {
+    caster = this._defaultCaster;
+  }
+  this._cast = caster;
+
+  return this._cast;
+};
+
+/*!
+ * ignore
+ */
+
+SchemaDate._defaultCaster = v => {
+  if (v != null && !(v instanceof Date)) {
+    throw new Error();
+  }
+  return v;
+};
+
+/**
+ * Declares a TTL index (rounded to the nearest second) for _Date_ types only.
+ *
+ * This sets the `expireAfterSeconds` index option available in MongoDB >= 2.1.2.
+ * This index type is only compatible with Date types.
+ *
+ * #### Example:
+ *
+ *     // expire in 24 hours
+ *     new Schema({ createdAt: { type: Date, expires: 60*60*24 }});
+ *
+ * `expires` utilizes the `ms` module from [guille](https://github.com/guille/) allowing us to use a friendlier syntax:
+ *
+ * #### Example:
+ *
+ *     // expire in 24 hours
+ *     new Schema({ createdAt: { type: Date, expires: '24h' }});
+ *
+ *     // expire in 1.5 hours
+ *     new Schema({ createdAt: { type: Date, expires: '1.5h' }});
+ *
+ *     // expire in 7 days
+ *     const schema = new Schema({ createdAt: Date });
+ *     schema.path('createdAt').expires('7d');
+ *
+ * @param {Number|String} when
+ * @added 3.0.0
+ * @return {SchemaType} this
+ * @api public
+ */
+
+SchemaDate.prototype.expires = function(when) {
+  if (getConstructorName(this._index) !== 'Object') {
+    this._index = {};
+  }
+
+  this._index.expires = when;
+  utils.expires(this._index);
+  return this;
+};
+
+/*!
+ * ignore
+ */
+
+SchemaDate._checkRequired = v => v instanceof Date;
+
+/**
+ * Override the function the required validator uses to check whether a string
+ * passes the `required` check.
+ *
+ * #### Example:
+ *
+ *     // Allow empty strings to pass `required` check
+ *     mongoose.Schema.Types.String.checkRequired(v => v != null);
+ *
+ *     const M = mongoose.model({ str: { type: String, required: true } });
+ *     new M({ str: '' }).validateSync(); // `null`, validation passes!
+ *
+ * @param {Function} fn
+ * @return {Function}
+ * @function checkRequired
+ * @static
+ * @api public
+ */
+
+SchemaDate.checkRequired = SchemaType.checkRequired;
+
+/**
+ * Check if the given value satisfies a required validator. To satisfy
+ * a required validator, the given value must be an instance of `Date`.
+ *
+ * @param {Any} value
+ * @param {Document} doc
+ * @return {Boolean}
+ * @api public
+ */
+
+SchemaDate.prototype.checkRequired = function(value, doc) {
+  if (typeof value === 'object' && SchemaType._isRef(this, value, doc, true)) {
+    return value != null;
+  }
+
+  // `require('util').inherits()` does **not** copy static properties, and
+  // plugins like mongoose-float use `inherits()` for pre-ES6.
+  const _checkRequired = typeof this.constructor.checkRequired === 'function' ?
+    this.constructor.checkRequired() :
+    SchemaDate.checkRequired();
+  return _checkRequired(value);
+};
+
+/**
+ * Sets a minimum date validator.
+ *
+ * #### Example:
+ *
+ *     const s = new Schema({ d: { type: Date, min: Date('1970-01-01') })
+ *     const M = db.model('M', s)
+ *     const m = new M({ d: Date('1969-12-31') })
+ *     m.save(function (err) {
+ *       console.error(err) // validator error
+ *       m.d = Date('2014-12-08');
+ *       m.save() // success
+ *     })
+ *
+ *     // custom error messages
+ *     // We can also use the special {MIN} token which will be replaced with the invalid value
+ *     const min = [Date('1970-01-01'), 'The value of path `{PATH}` ({VALUE}) is beneath the limit ({MIN}).'];
+ *     const schema = new Schema({ d: { type: Date, min: min })
+ *     const M = mongoose.model('M', schema);
+ *     const s= new M({ d: Date('1969-12-31') });
+ *     s.validate(function (err) {
+ *       console.log(String(err)) // ValidationError: The value of path `d` (1969-12-31) is before the limit (1970-01-01).
+ *     })
+ *
+ * @param {Date} value minimum date
+ * @param {String} [message] optional custom error message
+ * @return {SchemaType} this
+ * @see Customized Error Messages https://mongoosejs.com/docs/api/error.html#Error.messages
+ * @api public
+ */
+
+SchemaDate.prototype.min = function(value, message) {
+  if (this.minValidator) {
+    this.validators = this.validators.filter(function(v) {
+      return v.validator !== this.minValidator;
+    }, this);
+  }
+
+  if (value) {
+    let msg = message || MongooseError.messages.Date.min;
+    if (typeof msg === 'string') {
+      msg = msg.replace(/{MIN}/, (value === Date.now ? 'Date.now()' : value.toString()));
+    }
+    const _this = this;
+    this.validators.push({
+      validator: this.minValidator = function(val) {
+        let _value = value;
+        if (typeof value === 'function' && value !== Date.now) {
+          _value = _value.call(this);
+        }
+        const min = (_value === Date.now ? _value() : _this.cast(_value));
+        return val === null || val.valueOf() >= min.valueOf();
+      },
+      message: msg,
+      type: 'min',
+      min: value
+    });
+  }
+
+  return this;
+};
+
+/**
+ * Sets a maximum date validator.
+ *
+ * #### Example:
+ *
+ *     const s = new Schema({ d: { type: Date, max: Date('2014-01-01') })
+ *     const M = db.model('M', s)
+ *     const m = new M({ d: Date('2014-12-08') })
+ *     m.save(function (err) {
+ *       console.error(err) // validator error
+ *       m.d = Date('2013-12-31');
+ *       m.save() // success
+ *     })
+ *
+ *     // custom error messages
+ *     // We can also use the special {MAX} token which will be replaced with the invalid value
+ *     const max = [Date('2014-01-01'), 'The value of path `{PATH}` ({VALUE}) exceeds the limit ({MAX}).'];
+ *     const schema = new Schema({ d: { type: Date, max: max })
+ *     const M = mongoose.model('M', schema);
+ *     const s= new M({ d: Date('2014-12-08') });
+ *     s.validate(function (err) {
+ *       console.log(String(err)) // ValidationError: The value of path `d` (2014-12-08) exceeds the limit (2014-01-01).
+ *     })
+ *
+ * @param {Date} maximum date
+ * @param {String} [message] optional custom error message
+ * @return {SchemaType} this
+ * @see Customized Error Messages https://mongoosejs.com/docs/api/error.html#Error.messages
+ * @api public
+ */
+
+SchemaDate.prototype.max = function(value, message) {
+  if (this.maxValidator) {
+    this.validators = this.validators.filter(function(v) {
+      return v.validator !== this.maxValidator;
+    }, this);
+  }
+
+  if (value) {
+    let msg = message || MongooseError.messages.Date.max;
+    if (typeof msg === 'string') {
+      msg = msg.replace(/{MAX}/, (value === Date.now ? 'Date.now()' : value.toString()));
+    }
+    const _this = this;
+    this.validators.push({
+      validator: this.maxValidator = function(val) {
+        let _value = value;
+        if (typeof _value === 'function' && _value !== Date.now) {
+          _value = _value.call(this);
+        }
+        const max = (_value === Date.now ? _value() : _this.cast(_value));
+        return val === null || val.valueOf() <= max.valueOf();
+      },
+      message: msg,
+      type: 'max',
+      max: value
+    });
+  }
+
+  return this;
+};
+
+/**
+ * Casts to date
+ *
+ * @param {Object} value to cast
+ * @api private
+ */
+
+SchemaDate.prototype.cast = function(value) {
+  let castDate;
+  if (typeof this._castFunction === 'function') {
+    castDate = this._castFunction;
+  } else if (typeof this.constructor.cast === 'function') {
+    castDate = this.constructor.cast();
+  } else {
+    castDate = SchemaDate.cast();
+  }
+
+  try {
+    return castDate(value);
+  } catch (error) {
+    throw new CastError('date', value, this.path, error, this);
+  }
+};
+
+/**
+ * Date Query casting.
+ *
+ * @param {Any} val
+ * @api private
+ */
+
+function handleSingle(val) {
+  return this.cast(val);
+}
+
+SchemaDate.prototype.$conditionalHandlers = {
+  ...SchemaType.prototype.$conditionalHandlers,
+  $gt: handleSingle,
+  $gte: handleSingle,
+  $lt: handleSingle,
+  $lte: handleSingle
+};
+
+
+/**
+ * Casts contents for queries.
+ *
+ * @param {String} $conditional
+ * @param {any} [value]
+ * @api private
+ */
+
+SchemaDate.prototype.castForQuery = function($conditional, val, context) {
+  if ($conditional == null) {
+    try {
+      return this.applySetters(val, context);
+    } catch (err) {
+      if (err instanceof CastError && err.path === this.path && this.$fullPath != null) {
+        err.path = this.$fullPath;
+      }
+      throw err;
+    }
+  }
+
+  const handler = this.$conditionalHandlers[$conditional];
+
+  if (!handler) {
+    throw new Error('Can\'t use ' + $conditional + ' with Date.');
+  }
+
+  return handler.call(this, val);
+};
+
+/*!
+ * Module exports.
+ */
+
+module.exports = SchemaDate;
diff --git a/backend/node_modules/mongoose/lib/schema/decimal128.js b/backend/node_modules/mongoose/lib/schema/decimal128.js
new file mode 100644
index 0000000..70fcfec
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/decimal128.js
@@ -0,0 +1,228 @@
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const SchemaType = require('../schemaType');
+const CastError = SchemaType.CastError;
+const castDecimal128 = require('../cast/decimal128');
+const isBsonType = require('../helpers/isBsonType');
+
+/**
+ * Decimal128 SchemaType constructor.
+ *
+ * @param {String} key
+ * @param {Object} options
+ * @inherits SchemaType
+ * @api public
+ */
+
+function SchemaDecimal128(key, options) {
+  SchemaType.call(this, key, options, 'Decimal128');
+}
+
+/**
+ * This schema type's name, to defend against minifiers that mangle
+ * function names.
+ *
+ * @api public
+ */
+SchemaDecimal128.schemaName = 'Decimal128';
+
+SchemaDecimal128.defaultOptions = {};
+
+/*!
+ * Inherits from SchemaType.
+ */
+SchemaDecimal128.prototype = Object.create(SchemaType.prototype);
+SchemaDecimal128.prototype.constructor = SchemaDecimal128;
+
+/*!
+ * ignore
+ */
+
+SchemaDecimal128._cast = castDecimal128;
+
+/**
+ * Sets a default option for all Decimal128 instances.
+ *
+ * #### Example:
+ *
+ *     // Make all decimal 128s have `required` of true by default.
+ *     mongoose.Schema.Decimal128.set('required', true);
+ *
+ *     const User = mongoose.model('User', new Schema({ test: mongoose.Decimal128 }));
+ *     new User({ }).validateSync().errors.test.message; // Path `test` is required.
+ *
+ * @param {String} option The option you'd like to set the value for
+ * @param {Any} value value for option
+ * @return {undefined}
+ * @function set
+ * @static
+ * @api public
+ */
+
+SchemaDecimal128.set = SchemaType.set;
+
+SchemaDecimal128.setters = [];
+
+/**
+ * Attaches a getter for all Decimal128 instances
+ *
+ * #### Example:
+ *
+ *     // Automatically convert Decimal128s to Numbers
+ *     mongoose.Schema.Decimal128.get(v => v == null ? v : Number(v));
+ *
+ * @param {Function} getter
+ * @return {this}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaDecimal128.get = SchemaType.get;
+
+/**
+ * Get/set the function used to cast arbitrary values to decimals.
+ *
+ * #### Example:
+ *
+ *     // Make Mongoose only refuse to cast numbers as decimal128
+ *     const original = mongoose.Schema.Types.Decimal128.cast();
+ *     mongoose.Decimal128.cast(v => {
+ *       assert.ok(typeof v !== 'number');
+ *       return original(v);
+ *     });
+ *
+ *     // Or disable casting entirely
+ *     mongoose.Decimal128.cast(false);
+ *
+ * @param {Function} [caster]
+ * @return {Function}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaDecimal128.cast = function cast(caster) {
+  if (arguments.length === 0) {
+    return this._cast;
+  }
+  if (caster === false) {
+    caster = this._defaultCaster;
+  }
+  this._cast = caster;
+
+  return this._cast;
+};
+
+/*!
+ * ignore
+ */
+
+SchemaDecimal128._defaultCaster = v => {
+  if (v != null && !isBsonType(v, 'Decimal128')) {
+    throw new Error();
+  }
+  return v;
+};
+
+/*!
+ * ignore
+ */
+
+SchemaDecimal128._checkRequired = v => isBsonType(v, 'Decimal128');
+
+/**
+ * Override the function the required validator uses to check whether a string
+ * passes the `required` check.
+ *
+ * @param {Function} fn
+ * @return {Function}
+ * @function checkRequired
+ * @static
+ * @api public
+ */
+
+SchemaDecimal128.checkRequired = SchemaType.checkRequired;
+
+/**
+ * Check if the given value satisfies a required validator.
+ *
+ * @param {Any} value
+ * @param {Document} doc
+ * @return {Boolean}
+ * @api public
+ */
+
+SchemaDecimal128.prototype.checkRequired = function checkRequired(value, doc) {
+  if (SchemaType._isRef(this, value, doc, true)) {
+    return !!value;
+  }
+
+  // `require('util').inherits()` does **not** copy static properties, and
+  // plugins like mongoose-float use `inherits()` for pre-ES6.
+  const _checkRequired = typeof this.constructor.checkRequired === 'function' ?
+    this.constructor.checkRequired() :
+    SchemaDecimal128.checkRequired();
+
+  return _checkRequired(value);
+};
+
+/**
+ * Casts to Decimal128
+ *
+ * @param {Object} value
+ * @param {Object} doc
+ * @param {Boolean} init whether this is an initialization cast
+ * @api private
+ */
+
+SchemaDecimal128.prototype.cast = function(value, doc, init) {
+  if (SchemaType._isRef(this, value, doc, init)) {
+    if (isBsonType(value, 'Decimal128')) {
+      return value;
+    }
+
+    return this._castRef(value, doc, init);
+  }
+
+  let castDecimal128;
+  if (typeof this._castFunction === 'function') {
+    castDecimal128 = this._castFunction;
+  } else if (typeof this.constructor.cast === 'function') {
+    castDecimal128 = this.constructor.cast();
+  } else {
+    castDecimal128 = SchemaDecimal128.cast();
+  }
+
+  try {
+    return castDecimal128(value);
+  } catch (error) {
+    throw new CastError('Decimal128', value, this.path, error, this);
+  }
+};
+
+/*!
+ * ignore
+ */
+
+function handleSingle(val) {
+  return this.cast(val);
+}
+
+SchemaDecimal128.prototype.$conditionalHandlers = {
+  ...SchemaType.prototype.$conditionalHandlers,
+  $gt: handleSingle,
+  $gte: handleSingle,
+  $lt: handleSingle,
+  $lte: handleSingle
+};
+
+/*!
+ * Module exports.
+ */
+
+module.exports = SchemaDecimal128;
diff --git a/backend/node_modules/mongoose/lib/schema/documentArray.js b/backend/node_modules/mongoose/lib/schema/documentArray.js
new file mode 100644
index 0000000..413dc4a
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/documentArray.js
@@ -0,0 +1,658 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const CastError = require('../error/cast');
+const DocumentArrayElement = require('./documentArrayElement');
+const EventEmitter = require('events').EventEmitter;
+const SchemaArray = require('./array');
+const SchemaDocumentArrayOptions =
+  require('../options/schemaDocumentArrayOptions');
+const SchemaType = require('../schemaType');
+const cast = require('../cast');
+const discriminator = require('../helpers/model/discriminator');
+const handleIdOption = require('../helpers/schema/handleIdOption');
+const handleSpreadDoc = require('../helpers/document/handleSpreadDoc');
+const isOperator = require('../helpers/query/isOperator');
+const utils = require('../utils');
+const getConstructor = require('../helpers/discriminator/getConstructor');
+const InvalidSchemaOptionError = require('../error/invalidSchemaOption');
+
+const arrayAtomicsSymbol = require('../helpers/symbols').arrayAtomicsSymbol;
+const arrayPathSymbol = require('../helpers/symbols').arrayPathSymbol;
+const documentArrayParent = require('../helpers/symbols').documentArrayParent;
+
+let MongooseDocumentArray;
+let Subdocument;
+
+/**
+ * SubdocsArray SchemaType constructor
+ *
+ * @param {String} key
+ * @param {Schema} schema
+ * @param {Object} options
+ * @param {Object} schemaOptions
+ * @inherits SchemaArray
+ * @api public
+ */
+
+function SchemaDocumentArray(key, schema, options, schemaOptions) {
+  if (schema.options && schema.options.timeseries) {
+    throw new InvalidSchemaOptionError(key, 'timeseries');
+  }
+  const schemaTypeIdOption = SchemaDocumentArray.defaultOptions &&
+    SchemaDocumentArray.defaultOptions._id;
+  if (schemaTypeIdOption != null) {
+    schemaOptions = schemaOptions || {};
+    schemaOptions._id = schemaTypeIdOption;
+  }
+
+  if (schemaOptions != null && schemaOptions._id != null) {
+    schema = handleIdOption(schema, schemaOptions);
+  } else if (options != null && options._id != null) {
+    schema = handleIdOption(schema, options);
+  }
+
+  const EmbeddedDocument = _createConstructor(schema, options);
+  EmbeddedDocument.prototype.$basePath = key;
+
+  SchemaArray.call(this, key, EmbeddedDocument, options);
+
+  this.schema = schema;
+  this.schemaOptions = schemaOptions || {};
+  this.$isMongooseDocumentArray = true;
+  this.Constructor = EmbeddedDocument;
+
+  EmbeddedDocument.base = schema.base;
+
+  const fn = this.defaultValue;
+
+  if (!('defaultValue' in this) || fn != null) {
+    this.default(function() {
+      let arr = fn.call(this);
+      if (arr != null && !Array.isArray(arr)) {
+        arr = [arr];
+      }
+      // Leave it up to `cast()` to convert this to a documentarray
+      return arr;
+    });
+  }
+
+  const $parentSchemaType = this;
+  this.$embeddedSchemaType = new DocumentArrayElement(key + '.$', {
+    required: this &&
+      this.schemaOptions &&
+      this.schemaOptions.required || false,
+    $parentSchemaType
+  });
+
+  this.$embeddedSchemaType.caster = this.Constructor;
+  this.$embeddedSchemaType.schema = this.schema;
+}
+
+/**
+ * This schema type's name, to defend against minifiers that mangle
+ * function names.
+ *
+ * @api public
+ */
+SchemaDocumentArray.schemaName = 'DocumentArray';
+
+/**
+ * Options for all document arrays.
+ *
+ * - `castNonArrays`: `true` by default. If `false`, Mongoose will throw a CastError when a value isn't an array. If `true`, Mongoose will wrap the provided value in an array before casting.
+ *
+ * @api public
+ */
+
+SchemaDocumentArray.options = { castNonArrays: true };
+
+/*!
+ * Inherits from SchemaArray.
+ */
+SchemaDocumentArray.prototype = Object.create(SchemaArray.prototype);
+SchemaDocumentArray.prototype.constructor = SchemaDocumentArray;
+SchemaDocumentArray.prototype.OptionsConstructor = SchemaDocumentArrayOptions;
+SchemaDocumentArray.prototype.$conditionalHandlers = { ...SchemaArray.prototype.$conditionalHandlers };
+
+/*!
+ * ignore
+ */
+
+function _createConstructor(schema, options, baseClass) {
+  Subdocument || (Subdocument = require('../types/arraySubdocument'));
+
+  // compile an embedded document for this schema
+  function EmbeddedDocument() {
+    Subdocument.apply(this, arguments);
+    if (this.__parentArray == null || this.__parentArray.getArrayParent() == null) {
+      return;
+    }
+    this.$session(this.__parentArray.getArrayParent().$session());
+  }
+
+  schema._preCompile();
+
+  const proto = baseClass != null ? baseClass.prototype : Subdocument.prototype;
+  EmbeddedDocument.prototype = Object.create(proto);
+  EmbeddedDocument.prototype.$__setSchema(schema);
+  EmbeddedDocument.schema = schema;
+  EmbeddedDocument.prototype.constructor = EmbeddedDocument;
+  EmbeddedDocument.$isArraySubdocument = true;
+  EmbeddedDocument.events = new EventEmitter();
+  EmbeddedDocument.base = schema.base;
+
+  // apply methods
+  for (const i in schema.methods) {
+    EmbeddedDocument.prototype[i] = schema.methods[i];
+  }
+
+  // apply statics
+  for (const i in schema.statics) {
+    EmbeddedDocument[i] = schema.statics[i];
+  }
+
+  for (const i in EventEmitter.prototype) {
+    EmbeddedDocument[i] = EventEmitter.prototype[i];
+  }
+
+  EmbeddedDocument.options = options;
+
+  return EmbeddedDocument;
+}
+
+/**
+ * Adds a discriminator to this document array.
+ *
+ * #### Example:
+ *
+ *     const shapeSchema = Schema({ name: String }, { discriminatorKey: 'kind' });
+ *     const schema = Schema({ shapes: [shapeSchema] });
+ *
+ *     const docArrayPath = parentSchema.path('shapes');
+ *     docArrayPath.discriminator('Circle', Schema({ radius: Number }));
+ *
+ * @param {String} name
+ * @param {Schema} schema fields to add to the schema for instances of this sub-class
+ * @param {Object|string} [options] If string, same as `options.value`.
+ * @param {String} [options.value] the string stored in the `discriminatorKey` property. If not specified, Mongoose uses the `name` parameter.
+ * @param {Boolean} [options.clone=true] By default, `discriminator()` clones the given `schema`. Set to `false` to skip cloning.
+ * @see discriminators https://mongoosejs.com/docs/discriminators.html
+ * @return {Function} the constructor Mongoose will use for creating instances of this discriminator model
+ * @api public
+ */
+
+SchemaDocumentArray.prototype.discriminator = function(name, schema, options) {
+  if (typeof name === 'function') {
+    name = utils.getFunctionName(name);
+  }
+
+  options = options || {};
+  const tiedValue = utils.isPOJO(options) ? options.value : options;
+  const clone = typeof options.clone === 'boolean' ? options.clone : true;
+
+  if (schema.instanceOfSchema && clone) {
+    schema = schema.clone();
+  }
+
+  schema = discriminator(this.casterConstructor, name, schema, tiedValue, null, null, options?.overwriteExisting);
+
+  const EmbeddedDocument = _createConstructor(schema, null, this.casterConstructor);
+  EmbeddedDocument.baseCasterConstructor = this.casterConstructor;
+
+  try {
+    Object.defineProperty(EmbeddedDocument, 'name', {
+      value: name
+    });
+  } catch (error) {
+    // Ignore error, only happens on old versions of node
+  }
+
+  this.casterConstructor.discriminators[name] = EmbeddedDocument;
+
+  return this.casterConstructor.discriminators[name];
+};
+
+/**
+ * Performs local validations first, then validations on each embedded doc
+ *
+ * @api private
+ */
+
+SchemaDocumentArray.prototype.doValidate = function(array, fn, scope, options) {
+  // lazy load
+  MongooseDocumentArray || (MongooseDocumentArray = require('../types/documentArray'));
+
+  const _this = this;
+  try {
+    SchemaType.prototype.doValidate.call(this, array, cb, scope);
+  } catch (err) {
+    return fn(err);
+  }
+
+  function cb(err) {
+    if (err) {
+      return fn(err);
+    }
+
+    let count = array && array.length;
+    let error;
+
+    if (!count) {
+      return fn();
+    }
+    if (options && options.updateValidator) {
+      return fn();
+    }
+    if (!utils.isMongooseDocumentArray(array)) {
+      array = new MongooseDocumentArray(array, _this.path, scope);
+    }
+
+    // handle sparse arrays, do not use array.forEach which does not
+    // iterate over sparse elements yet reports array.length including
+    // them :(
+
+    function callback(err) {
+      if (err != null) {
+        error = err;
+      }
+      --count || fn(error);
+    }
+
+    for (let i = 0, len = count; i < len; ++i) {
+      // sidestep sparse entries
+      let doc = array[i];
+      if (doc == null) {
+        --count || fn(error);
+        continue;
+      }
+
+      // If you set the array index directly, the doc might not yet be
+      // a full fledged mongoose subdoc, so make it into one.
+      if (!(doc instanceof Subdocument)) {
+        const Constructor = getConstructor(_this.casterConstructor, array[i]);
+        doc = array[i] = new Constructor(doc, array, undefined, undefined, i);
+      }
+
+      if (options != null && options.validateModifiedOnly && !doc.$isModified()) {
+        --count || fn(error);
+        continue;
+      }
+
+      doc.$__validate(null, options, callback);
+    }
+  }
+};
+
+/**
+ * Performs local validations first, then validations on each embedded doc.
+ *
+ * #### Note:
+ *
+ * This method ignores the asynchronous validators.
+ *
+ * @return {MongooseError|undefined}
+ * @api private
+ */
+
+SchemaDocumentArray.prototype.doValidateSync = function(array, scope, options) {
+  const schemaTypeError = SchemaType.prototype.doValidateSync.call(this, array, scope);
+  if (schemaTypeError != null) {
+    return schemaTypeError;
+  }
+
+  const count = array && array.length;
+  let resultError = null;
+
+  if (!count) {
+    return;
+  }
+
+  // handle sparse arrays, do not use array.forEach which does not
+  // iterate over sparse elements yet reports array.length including
+  // them :(
+
+  for (let i = 0, len = count; i < len; ++i) {
+    // sidestep sparse entries
+    let doc = array[i];
+    if (!doc) {
+      continue;
+    }
+
+    // If you set the array index directly, the doc might not yet be
+    // a full fledged mongoose subdoc, so make it into one.
+    if (!(doc instanceof Subdocument)) {
+      const Constructor = getConstructor(this.casterConstructor, array[i]);
+      doc = array[i] = new Constructor(doc, array, undefined, undefined, i);
+    }
+
+    if (options != null && options.validateModifiedOnly && !doc.$isModified()) {
+      continue;
+    }
+
+    const subdocValidateError = doc.validateSync(options);
+
+    if (subdocValidateError && resultError == null) {
+      resultError = subdocValidateError;
+    }
+  }
+
+  return resultError;
+};
+
+/*!
+ * ignore
+ */
+
+SchemaDocumentArray.prototype.getDefault = function(scope, init, options) {
+  let ret = typeof this.defaultValue === 'function'
+    ? this.defaultValue.call(scope)
+    : this.defaultValue;
+
+  if (ret == null) {
+    return ret;
+  }
+
+  if (options && options.skipCast) {
+    return ret;
+  }
+
+  // lazy load
+  MongooseDocumentArray || (MongooseDocumentArray = require('../types/documentArray'));
+
+  if (!Array.isArray(ret)) {
+    ret = [ret];
+  }
+
+  ret = new MongooseDocumentArray(ret, this.path, scope);
+
+  for (let i = 0; i < ret.length; ++i) {
+    const Constructor = getConstructor(this.casterConstructor, ret[i]);
+    const _subdoc = new Constructor({}, ret, undefined,
+      undefined, i);
+    _subdoc.$init(ret[i]);
+    _subdoc.isNew = true;
+
+    // Make sure all paths in the subdoc are set to `default` instead
+    // of `init` since we used `init`.
+    Object.assign(_subdoc.$__.activePaths.default, _subdoc.$__.activePaths.init);
+    _subdoc.$__.activePaths.init = {};
+
+    ret[i] = _subdoc;
+  }
+
+  return ret;
+};
+
+const _toObjectOptions = Object.freeze({ transform: false, virtuals: false });
+const initDocumentOptions = Object.freeze({ skipId: false, willInit: true });
+
+/**
+ * Casts contents
+ *
+ * @param {Object} value
+ * @param {Document} document that triggers the casting
+ * @api private
+ */
+
+SchemaDocumentArray.prototype.cast = function(value, doc, init, prev, options) {
+  // lazy load
+  MongooseDocumentArray || (MongooseDocumentArray = require('../types/documentArray'));
+
+  // Skip casting if `value` is the same as the previous value, no need to cast. See gh-9266
+  if (value != null && value[arrayPathSymbol] != null && value === prev) {
+    return value;
+  }
+
+  let selected;
+  let subdoc;
+
+  options = options || {};
+
+  const path = options.path || this.path;
+
+  if (!Array.isArray(value)) {
+    if (!init && !SchemaDocumentArray.options.castNonArrays) {
+      throw new CastError('DocumentArray', value, this.path, null, this);
+    }
+    // gh-2442 mark whole array as modified if we're initializing a doc from
+    // the db and the path isn't an array in the document
+    if (!!doc && init) {
+      doc.markModified(path);
+    }
+    return this.cast([value], doc, init, prev, options);
+  }
+
+  // We need to create a new array, otherwise change tracking will
+  // update the old doc (gh-4449)
+  if (!options.skipDocumentArrayCast || utils.isMongooseDocumentArray(value)) {
+    value = new MongooseDocumentArray(value, path, doc, this);
+  }
+
+  if (prev != null) {
+    value[arrayAtomicsSymbol] = prev[arrayAtomicsSymbol] || {};
+  }
+
+  if (options.arrayPathIndex != null) {
+    value[arrayPathSymbol] = path + '.' + options.arrayPathIndex;
+  }
+
+  const rawArray = utils.isMongooseDocumentArray(value) ? value.__array : value;
+  const len = rawArray.length;
+
+  for (let i = 0; i < len; ++i) {
+    if (!rawArray[i]) {
+      continue;
+    }
+
+    const Constructor = getConstructor(this.casterConstructor, rawArray[i]);
+
+    const spreadDoc = handleSpreadDoc(rawArray[i], true);
+    if (rawArray[i] !== spreadDoc) {
+      rawArray[i] = spreadDoc;
+    }
+
+    if (rawArray[i] instanceof Subdocument) {
+      if (rawArray[i][documentArrayParent] !== doc) {
+        if (init) {
+          const subdoc = new Constructor(null, value, initDocumentOptions, selected, i);
+          rawArray[i] = subdoc.$init(rawArray[i]);
+        } else {
+          const subdoc = new Constructor(rawArray[i], value, undefined, undefined, i);
+          rawArray[i] = subdoc;
+        }
+      }
+      // Might not have the correct index yet, so ensure it does.
+      if (rawArray[i].__index == null) {
+        rawArray[i].$setIndex(i);
+      }
+    } else if (rawArray[i] != null) {
+      if (init) {
+        if (doc) {
+          selected || (selected = scopePaths(this, doc.$__.selected, init));
+        } else {
+          selected = true;
+        }
+
+        subdoc = new Constructor(null, value, initDocumentOptions, selected, i);
+        rawArray[i] = subdoc.$init(rawArray[i]);
+      } else {
+        if (prev && typeof prev.id === 'function') {
+          subdoc = prev.id(rawArray[i]._id);
+        }
+
+        if (prev && subdoc && utils.deepEqual(subdoc.toObject(_toObjectOptions), rawArray[i])) {
+          // handle resetting doc with existing id and same data
+          subdoc.set(rawArray[i]);
+          // if set() is hooked it will have no return value
+          // see gh-746
+          rawArray[i] = subdoc;
+        } else {
+          try {
+            subdoc = new Constructor(rawArray[i], value, undefined,
+              undefined, i);
+            // if set() is hooked it will have no return value
+            // see gh-746
+            rawArray[i] = subdoc;
+          } catch (error) {
+            throw new CastError('embedded', rawArray[i],
+              value[arrayPathSymbol], error, this);
+          }
+        }
+      }
+    }
+  }
+
+  return value;
+};
+
+/*!
+ * ignore
+ */
+
+SchemaDocumentArray.prototype.clone = function() {
+  const options = Object.assign({}, this.options);
+  const schematype = new this.constructor(this.path, this.schema, options, this.schemaOptions);
+  schematype.validators = this.validators.slice();
+  if (this.requiredValidator !== undefined) {
+    schematype.requiredValidator = this.requiredValidator;
+  }
+  schematype.Constructor.discriminators = Object.assign({},
+    this.Constructor.discriminators);
+  schematype._appliedDiscriminators = this._appliedDiscriminators;
+  return schematype;
+};
+
+/*!
+ * ignore
+ */
+
+SchemaDocumentArray.prototype.applyGetters = function(value, scope) {
+  return SchemaType.prototype.applyGetters.call(this, value, scope);
+};
+
+/**
+ * Scopes paths selected in a query to this array.
+ * Necessary for proper default application of subdocument values.
+ *
+ * @param {DocumentArrayPath} array the array to scope `fields` paths
+ * @param {Object|undefined} fields the root fields selected in the query
+ * @param {Boolean|undefined} init if we are being created part of a query result
+ * @api private
+ */
+
+function scopePaths(array, fields, init) {
+  if (!(init && fields)) {
+    return undefined;
+  }
+
+  const path = array.path + '.';
+  const keys = Object.keys(fields);
+  let i = keys.length;
+  const selected = {};
+  let hasKeys;
+  let key;
+  let sub;
+
+  while (i--) {
+    key = keys[i];
+    if (key.startsWith(path)) {
+      sub = key.substring(path.length);
+      if (sub === '$') {
+        continue;
+      }
+      if (sub.startsWith('$.')) {
+        sub = sub.substring(2);
+      }
+      hasKeys || (hasKeys = true);
+      selected[sub] = fields[key];
+    }
+  }
+
+  return hasKeys && selected || undefined;
+}
+
+/*!
+ * ignore
+ */
+
+SchemaDocumentArray.defaultOptions = {};
+
+/**
+ * Sets a default option for all DocumentArray instances.
+ *
+ * #### Example:
+ *
+ *     // Make all numbers have option `min` equal to 0.
+ *     mongoose.Schema.DocumentArray.set('_id', false);
+ *
+ * @param {String} option The name of the option you'd like to set (e.g. trim, lowercase, etc...)
+ * @param {Any} value The value of the option you'd like to set.
+ * @return {void}
+ * @function set
+ * @static
+ * @api public
+ */
+
+SchemaDocumentArray.set = SchemaType.set;
+
+SchemaDocumentArray.setters = [];
+
+/**
+ * Attaches a getter for all DocumentArrayPath instances
+ *
+ * @param {Function} getter
+ * @return {this}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaDocumentArray.get = SchemaType.get;
+
+/*!
+ * Handle casting $elemMatch operators
+ */
+
+SchemaDocumentArray.prototype.$conditionalHandlers.$elemMatch = cast$elemMatch;
+
+function cast$elemMatch(val, context) {
+  const keys = Object.keys(val);
+  const numKeys = keys.length;
+  for (let i = 0; i < numKeys; ++i) {
+    const key = keys[i];
+    const value = val[key];
+    if (isOperator(key) && value != null) {
+      val[key] = this.castForQuery(key, value, context);
+    }
+  }
+
+  // Is this an embedded discriminator and is the discriminator key set?
+  // If so, use the discriminator schema. See gh-7449
+  const discriminatorKey = this &&
+    this.casterConstructor &&
+    this.casterConstructor.schema &&
+    this.casterConstructor.schema.options &&
+    this.casterConstructor.schema.options.discriminatorKey;
+  const discriminators = this &&
+  this.casterConstructor &&
+  this.casterConstructor.schema &&
+  this.casterConstructor.schema.discriminators || {};
+  if (discriminatorKey != null &&
+      val[discriminatorKey] != null &&
+      discriminators[val[discriminatorKey]] != null) {
+    return cast(discriminators[val[discriminatorKey]], val, null, this && this.$$context);
+  }
+
+  const schema = this.casterConstructor.schema ?? context.schema;
+  return cast(schema, val, null, this && this.$$context);
+}
+
+/*!
+ * Module exports.
+ */
+
+module.exports = SchemaDocumentArray;
diff --git a/backend/node_modules/mongoose/lib/schema/documentArrayElement.js b/backend/node_modules/mongoose/lib/schema/documentArrayElement.js
new file mode 100644
index 0000000..5250b74
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/documentArrayElement.js
@@ -0,0 +1,100 @@
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const MongooseError = require('../error/mongooseError');
+const SchemaType = require('../schemaType');
+const SchemaSubdocument = require('./subdocument');
+const getConstructor = require('../helpers/discriminator/getConstructor');
+
+/**
+ * DocumentArrayElement SchemaType constructor.
+ *
+ * @param {String} path
+ * @param {Object} options
+ * @inherits SchemaType
+ * @api public
+ */
+
+function SchemaDocumentArrayElement(path, options) {
+  this.$parentSchemaType = options && options.$parentSchemaType;
+  if (!this.$parentSchemaType) {
+    throw new MongooseError('Cannot create DocumentArrayElement schematype without a parent');
+  }
+  delete options.$parentSchemaType;
+
+  SchemaType.call(this, path, options, 'DocumentArrayElement');
+
+  this.$isMongooseDocumentArrayElement = true;
+}
+
+/**
+ * This schema type's name, to defend against minifiers that mangle
+ * function names.
+ *
+ * @api public
+ */
+SchemaDocumentArrayElement.schemaName = 'DocumentArrayElement';
+
+SchemaDocumentArrayElement.defaultOptions = {};
+
+/*!
+ * Inherits from SchemaType.
+ */
+SchemaDocumentArrayElement.prototype = Object.create(SchemaType.prototype);
+SchemaDocumentArrayElement.prototype.constructor = SchemaDocumentArrayElement;
+
+/**
+ * Casts `val` for DocumentArrayElement.
+ *
+ * @param {Object} value to cast
+ * @api private
+ */
+
+SchemaDocumentArrayElement.prototype.cast = function(...args) {
+  return this.$parentSchemaType.cast(...args)[0];
+};
+
+/**
+ * Casts contents for queries.
+ *
+ * @param {String} $cond
+ * @param {any} [val]
+ * @api private
+ */
+
+SchemaDocumentArrayElement.prototype.doValidate = function(value, fn, scope, options) {
+  const Constructor = getConstructor(this.caster, value);
+
+  if (value && !(value instanceof Constructor)) {
+    value = new Constructor(value, scope, null, null, options && options.index != null ? options.index : null);
+  }
+
+  return SchemaSubdocument.prototype.doValidate.call(this, value, fn, scope, options);
+};
+
+/**
+ * Clone the current SchemaType
+ *
+ * @return {DocumentArrayElement} The cloned instance
+ * @api private
+ */
+
+SchemaDocumentArrayElement.prototype.clone = function() {
+  this.options.$parentSchemaType = this.$parentSchemaType;
+  const ret = SchemaType.prototype.clone.apply(this, arguments);
+  delete this.options.$parentSchemaType;
+
+  ret.caster = this.caster;
+  ret.schema = this.schema;
+
+  return ret;
+};
+
+/*!
+ * Module exports.
+ */
+
+module.exports = SchemaDocumentArrayElement;
diff --git a/backend/node_modules/mongoose/lib/schema/double.js b/backend/node_modules/mongoose/lib/schema/double.js
new file mode 100644
index 0000000..79c9475
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/double.js
@@ -0,0 +1,212 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const CastError = require('../error/cast');
+const SchemaType = require('../schemaType');
+const castDouble = require('../cast/double');
+
+/**
+ * Double SchemaType constructor.
+ *
+ * @param {String} path
+ * @param {Object} options
+ * @inherits SchemaType
+ * @api public
+ */
+
+function SchemaDouble(path, options) {
+  SchemaType.call(this, path, options, 'Double');
+}
+
+/**
+ * This schema type's name, to defend against minifiers that mangle
+ * function names.
+ *
+ * @api public
+ */
+SchemaDouble.schemaName = 'Double';
+
+SchemaDouble.defaultOptions = {};
+
+/*!
+ * Inherits from SchemaType.
+ */
+SchemaDouble.prototype = Object.create(SchemaType.prototype);
+SchemaDouble.prototype.constructor = SchemaDouble;
+
+/*!
+ * ignore
+ */
+
+SchemaDouble._cast = castDouble;
+
+/**
+ * Sets a default option for all Double instances.
+ *
+ * #### Example:
+ *
+ *     // Make all Double fields required by default
+ *     mongoose.Schema.Double.set('required', true);
+ *
+ * @param {String} option The option you'd like to set the value for
+ * @param {Any} value value for option
+ * @return {undefined}
+ * @function set
+ * @static
+ * @api public
+ */
+
+SchemaDouble.set = SchemaType.set;
+
+SchemaDouble.setters = [];
+
+/**
+ * Attaches a getter for all Double instances
+ *
+ * #### Example:
+ *
+ *     // Converts Double to be a represent milliseconds upon access
+ *     mongoose.Schema.Double.get(v => v == null ? '0.000 ms' : v.toString() + ' ms');
+ *
+ * @param {Function} getter
+ * @return {this}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaDouble.get = SchemaType.get;
+
+/*!
+ * ignore
+ */
+
+SchemaDouble._defaultCaster = v => {
+  if (v != null) {
+    if (v._bsontype !== 'Double') {
+      throw new Error();
+    }
+  }
+
+  return v;
+};
+
+/**
+ * Get/set the function used to cast arbitrary values to  IEEE 754-2008 floating points
+ *
+ * #### Example:
+ *
+ *     // Make Mongoose cast any NaNs to 0
+ *     const defaultCast = mongoose.Schema.Types.Double.cast();
+ *     mongoose.Schema.Types.Double.cast(v => {
+ *       if (isNaN(v)) {
+ *         return 0;
+ *       }
+ *       return defaultCast(v);
+ *     });
+ *
+ *     // Or disable casting for Doubles entirely (only JS numbers are permitted)
+ *     mongoose.Schema.Double.cast(false);
+ *
+ *
+ * @param {Function} caster
+ * @return {Function}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaDouble.cast = function cast(caster) {
+  if (arguments.length === 0) {
+    return this._cast;
+  }
+  if (caster === false) {
+    caster = this._defaultCaster;
+  }
+
+  this._cast = caster;
+
+  return this._cast;
+};
+
+
+/*!
+ * ignore
+ */
+
+SchemaDouble._checkRequired = v => v != null;
+/**
+ * Override the function the required validator uses to check whether a value
+ * passes the `required` check.
+ *
+ * @param {Function} fn
+ * @return {Function}
+ * @function checkRequired
+ * @static
+ * @api public
+ */
+
+SchemaDouble.checkRequired = SchemaType.checkRequired;
+
+/**
+ * Check if the given value satisfies a required validator.
+ *
+ * @param {Any} value
+ * @return {Boolean}
+ * @api public
+ */
+
+SchemaDouble.prototype.checkRequired = function(value) {
+  return this.constructor._checkRequired(value);
+};
+
+/**
+ * Casts to Double
+ *
+ * @param {Object} value
+ * @param {Object} model this value is optional
+ * @api private
+ */
+
+SchemaDouble.prototype.cast = function(value) {
+  let castDouble;
+  if (typeof this._castFunction === 'function') {
+    castDouble = this._castFunction;
+  } else if (typeof this.constructor.cast === 'function') {
+    castDouble = this.constructor.cast();
+  } else {
+    castDouble = SchemaDouble.cast();
+  }
+
+  try {
+    return castDouble(value);
+  } catch (error) {
+    throw new CastError('Double', value, this.path, error, this);
+  }
+};
+
+/*!
+ * ignore
+ */
+
+function handleSingle(val) {
+  return this.cast(val);
+}
+
+SchemaDouble.prototype.$conditionalHandlers = {
+  ...SchemaType.prototype.$conditionalHandlers,
+  $gt: handleSingle,
+  $gte: handleSingle,
+  $lt: handleSingle,
+  $lte: handleSingle
+};
+
+
+/*!
+ * Module exports.
+ */
+
+module.exports = SchemaDouble;
diff --git a/backend/node_modules/mongoose/lib/schema/index.js b/backend/node_modules/mongoose/lib/schema/index.js
new file mode 100644
index 0000000..2d2e992
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/index.js
@@ -0,0 +1,30 @@
+
+/*!
+ * Module exports.
+ */
+
+'use strict';
+
+exports.Array = require('./array');
+exports.BigInt = require('./bigint');
+exports.Boolean = require('./boolean');
+exports.Buffer = require('./buffer');
+exports.Date = require('./date');
+exports.Decimal128 = exports.Decimal = require('./decimal128');
+exports.DocumentArray = require('./documentArray');
+exports.Map = require('./map');
+exports.Mixed = require('./mixed');
+exports.Number = require('./number');
+exports.ObjectId = require('./objectId');
+exports.String = require('./string');
+exports.Subdocument = require('./subdocument');
+exports.UUID = require('./uuid');
+exports.Double = require('./double');
+exports.Int32 = require('./int32');
+
+// alias
+
+exports.Oid = exports.ObjectId;
+exports.Object = exports.Mixed;
+exports.Bool = exports.Boolean;
+exports.ObjectID = exports.ObjectId;
diff --git a/backend/node_modules/mongoose/lib/schema/int32.js b/backend/node_modules/mongoose/lib/schema/int32.js
new file mode 100644
index 0000000..6838d22
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/int32.js
@@ -0,0 +1,254 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const CastError = require('../error/cast');
+const SchemaType = require('../schemaType');
+const castInt32 = require('../cast/int32');
+const handleBitwiseOperator = require('./operators/bitwise');
+
+/**
+ * Int32 SchemaType constructor.
+ *
+ * @param {String} path
+ * @param {Object} options
+ * @inherits SchemaType
+ * @api public
+ */
+
+function SchemaInt32(path, options) {
+  SchemaType.call(this, path, options, 'Int32');
+}
+
+/**
+ * This schema type's name, to defend against minifiers that mangle
+ * function names.
+ *
+ * @api public
+ */
+SchemaInt32.schemaName = 'Int32';
+
+SchemaInt32.defaultOptions = {};
+
+/*!
+ * Inherits from SchemaType.
+ */
+SchemaInt32.prototype = Object.create(SchemaType.prototype);
+SchemaInt32.prototype.constructor = SchemaInt32;
+
+/*!
+ * ignore
+ */
+
+SchemaInt32._cast = castInt32;
+
+/**
+ * Sets a default option for all Int32 instances.
+ *
+ * #### Example:
+ *
+ *     // Make all Int32 fields required by default
+ *     mongoose.Schema.Int32.set('required', true);
+ *
+ * @param {String} option The option you'd like to set the value for
+ * @param {Any} value value for option
+ * @return {undefined}
+ * @function set
+ * @static
+ * @api public
+ */
+
+SchemaInt32.set = SchemaType.set;
+
+SchemaInt32.setters = [];
+
+/**
+ * Attaches a getter for all Int32 instances
+ *
+ * #### Example:
+ *
+ *     // Converts int32 to be a represent milliseconds upon access
+ *     mongoose.Schema.Int32.get(v => v == null ? '0 ms' : v.toString() + ' ms');
+ *
+ * @param {Function} getter
+ * @return {this}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaInt32.get = SchemaType.get;
+
+/*!
+ * ignore
+ */
+
+SchemaInt32._defaultCaster = v => {
+  const INT32_MAX = 0x7FFFFFFF;
+  const INT32_MIN = -0x80000000;
+
+  if (v != null) {
+    if (typeof v !== 'number' || v !== (v | 0) || v < INT32_MIN || v > INT32_MAX) {
+      throw new Error();
+    }
+  }
+
+  return v;
+};
+
+/**
+ * Get/set the function used to cast arbitrary values to 32-bit integers
+ *
+ * #### Example:
+ *
+ *     // Make Mongoose cast NaN to 0
+ *     const defaultCast = mongoose.Schema.Types.Int32.cast();
+ *     mongoose.Schema.Types.Int32.cast(v => {
+ *       if (isNaN(v)) {
+ *         return 0;
+ *       }
+ *       return defaultCast(v);
+ *     });
+ *
+ *     // Or disable casting for Int32s entirely (only JS numbers within 32-bit integer bounds and null-ish values are permitted)
+ *     mongoose.Schema.Int32.cast(false);
+ *
+ *
+ * @param {Function} caster
+ * @return {Function}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaInt32.cast = function cast(caster) {
+  if (arguments.length === 0) {
+    return this._cast;
+  }
+  if (caster === false) {
+    caster = this._defaultCaster;
+  }
+
+  this._cast = caster;
+
+  return this._cast;
+};
+
+
+/*!
+ * ignore
+ */
+
+SchemaInt32._checkRequired = v => v != null;
+/**
+ * Override the function the required validator uses to check whether a value
+ * passes the `required` check.
+ *
+ * @param {Function} fn
+ * @return {Function}
+ * @function checkRequired
+ * @static
+ * @api public
+ */
+
+SchemaInt32.checkRequired = SchemaType.checkRequired;
+
+/**
+ * Check if the given value satisfies a required validator.
+ *
+ * @param {Any} value
+ * @return {Boolean}
+ * @api public
+ */
+
+SchemaInt32.prototype.checkRequired = function(value) {
+  return this.constructor._checkRequired(value);
+};
+
+/**
+ * Casts to Int32
+ *
+ * @param {Object} value
+ * @param {Object} model this value is optional
+ * @api private
+ */
+
+SchemaInt32.prototype.cast = function(value) {
+  let castInt32;
+  if (typeof this._castFunction === 'function') {
+    castInt32 = this._castFunction;
+  } else if (typeof this.constructor.cast === 'function') {
+    castInt32 = this.constructor.cast();
+  } else {
+    castInt32 = SchemaInt32.cast();
+  }
+
+  try {
+    return castInt32(value);
+  } catch (error) {
+    throw new CastError('Int32', value, this.path, error, this);
+  }
+};
+
+/*!
+ * ignore
+ */
+
+SchemaInt32.$conditionalHandlers = {
+  ...SchemaType.prototype.$conditionalHandlers,
+  $gt: handleSingle,
+  $gte: handleSingle,
+  $lt: handleSingle,
+  $lte: handleSingle,
+  $bitsAllClear: handleBitwiseOperator,
+  $bitsAnyClear: handleBitwiseOperator,
+  $bitsAllSet: handleBitwiseOperator,
+  $bitsAnySet: handleBitwiseOperator
+};
+
+/*!
+ * ignore
+ */
+
+function handleSingle(val, context) {
+  return this.castForQuery(null, val, context);
+}
+
+/**
+ * Casts contents for queries.
+ *
+ * @param {String} $conditional
+ * @param {any} val
+ * @api private
+ */
+
+SchemaInt32.prototype.castForQuery = function($conditional, val, context) {
+  let handler;
+  if ($conditional != null) {
+    handler = SchemaInt32.$conditionalHandlers[$conditional];
+
+    if (handler) {
+      return handler.call(this, val);
+    }
+
+    return this.applySetters(val, context);
+  }
+
+  try {
+    return this.applySetters(val, context);
+  } catch (err) {
+    if (err instanceof CastError && err.path === this.path && this.$fullPath != null) {
+      err.path = this.$fullPath;
+    }
+    throw err;
+  }
+};
+
+
+/*!
+ * Module exports.
+ */
+
+module.exports = SchemaInt32;
diff --git a/backend/node_modules/mongoose/lib/schema/map.js b/backend/node_modules/mongoose/lib/schema/map.js
new file mode 100644
index 0000000..1c7c41a
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/map.js
@@ -0,0 +1,84 @@
+'use strict';
+
+/*!
+ * ignore
+ */
+
+const MongooseMap = require('../types/map');
+const SchemaMapOptions = require('../options/schemaMapOptions');
+const SchemaType = require('../schemaType');
+/*!
+ * ignore
+ */
+
+class SchemaMap extends SchemaType {
+  constructor(key, options) {
+    super(key, options, 'Map');
+    this.$isSchemaMap = true;
+  }
+
+  set(option, value) {
+    return SchemaType.set(option, value);
+  }
+
+  cast(val, doc, init) {
+    if (val instanceof MongooseMap) {
+      return val;
+    }
+
+    const path = this.path;
+
+    if (init) {
+      const map = new MongooseMap({}, path, doc, this.$__schemaType);
+
+      if (val instanceof global.Map) {
+        for (const key of val.keys()) {
+          let _val = val.get(key);
+          if (_val == null) {
+            _val = map.$__schemaType._castNullish(_val);
+          } else {
+            _val = map.$__schemaType.cast(_val, doc, true, null, { path: path + '.' + key });
+          }
+          map.$init(key, _val);
+        }
+      } else {
+        for (const key of Object.keys(val)) {
+          let _val = val[key];
+          if (_val == null) {
+            _val = map.$__schemaType._castNullish(_val);
+          } else {
+            _val = map.$__schemaType.cast(_val, doc, true, null, { path: path + '.' + key });
+          }
+          map.$init(key, _val);
+        }
+      }
+
+      return map;
+    }
+
+    return new MongooseMap(val, path, doc, this.$__schemaType);
+  }
+
+  clone() {
+    const schematype = super.clone();
+
+    if (this.$__schemaType != null) {
+      schematype.$__schemaType = this.$__schemaType.clone();
+    }
+    return schematype;
+  }
+}
+
+/**
+ * This schema type's name, to defend against minifiers that mangle
+ * function names.
+ *
+ * @api public
+ */
+SchemaMap.schemaName = 'Map';
+
+SchemaMap.prototype.OptionsConstructor = SchemaMapOptions;
+
+SchemaMap.defaultOptions = {};
+
+module.exports = SchemaMap;
diff --git a/backend/node_modules/mongoose/lib/schema/mixed.js b/backend/node_modules/mongoose/lib/schema/mixed.js
new file mode 100644
index 0000000..a645a98
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/mixed.js
@@ -0,0 +1,131 @@
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const SchemaType = require('../schemaType');
+const symbols = require('./symbols');
+const isObject = require('../helpers/isObject');
+const utils = require('../utils');
+
+/**
+ * Mixed SchemaType constructor.
+ *
+ * @param {String} path
+ * @param {Object} options
+ * @inherits SchemaType
+ * @api public
+ */
+
+function SchemaMixed(path, options) {
+  if (options && options.default) {
+    const def = options.default;
+    if (Array.isArray(def) && def.length === 0) {
+      // make sure empty array defaults are handled
+      options.default = Array;
+    } else if (!options.shared && isObject(def) && Object.keys(def).length === 0) {
+      // prevent odd "shared" objects between documents
+      options.default = function() {
+        return {};
+      };
+    }
+  }
+
+  SchemaType.call(this, path, options, 'Mixed');
+
+  this[symbols.schemaMixedSymbol] = true;
+}
+
+/**
+ * This schema type's name, to defend against minifiers that mangle
+ * function names.
+ *
+ * @api public
+ */
+SchemaMixed.schemaName = 'Mixed';
+
+SchemaMixed.defaultOptions = {};
+
+/*!
+ * Inherits from SchemaType.
+ */
+SchemaMixed.prototype = Object.create(SchemaType.prototype);
+SchemaMixed.prototype.constructor = SchemaMixed;
+
+/**
+ * Attaches a getter for all Mixed paths.
+ *
+ * #### Example:
+ *
+ *     // Hide the 'hidden' path
+ *     mongoose.Schema.Mixed.get(v => Object.assign({}, v, { hidden: null }));
+ *
+ *     const Model = mongoose.model('Test', new Schema({ test: {} }));
+ *     new Model({ test: { hidden: 'Secret!' } }).test.hidden; // null
+ *
+ * @param {Function} getter
+ * @return {this}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaMixed.get = SchemaType.get;
+
+/**
+ * Sets a default option for all Mixed instances.
+ *
+ * #### Example:
+ *
+ *     // Make all mixed instances have `required` of true by default.
+ *     mongoose.Schema.Mixed.set('required', true);
+ *
+ *     const User = mongoose.model('User', new Schema({ test: mongoose.Mixed }));
+ *     new User({ }).validateSync().errors.test.message; // Path `test` is required.
+ *
+ * @param {String} option The option you'd like to set the value for
+ * @param {Any} value value for option
+ * @return {undefined}
+ * @function set
+ * @static
+ * @api public
+ */
+
+SchemaMixed.set = SchemaType.set;
+
+SchemaMixed.setters = [];
+
+/**
+ * Casts `val` for Mixed.
+ *
+ * _this is a no-op_
+ *
+ * @param {Object} value to cast
+ * @api private
+ */
+
+SchemaMixed.prototype.cast = function(val) {
+  if (val instanceof Error) {
+    return utils.errorToPOJO(val);
+  }
+  return val;
+};
+
+/**
+ * Casts contents for queries.
+ *
+ * @param {String} $cond
+ * @param {any} [val]
+ * @api private
+ */
+
+SchemaMixed.prototype.castForQuery = function($cond, val) {
+  return val;
+};
+
+/*!
+ * Module exports.
+ */
+
+module.exports = SchemaMixed;
diff --git a/backend/node_modules/mongoose/lib/schema/number.js b/backend/node_modules/mongoose/lib/schema/number.js
new file mode 100644
index 0000000..d89ab7d
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/number.js
@@ -0,0 +1,449 @@
+'use strict';
+
+/*!
+ * Module requirements.
+ */
+
+const MongooseError = require('../error/index');
+const SchemaNumberOptions = require('../options/schemaNumberOptions');
+const SchemaType = require('../schemaType');
+const castNumber = require('../cast/number');
+const handleBitwiseOperator = require('./operators/bitwise');
+const utils = require('../utils');
+
+const CastError = SchemaType.CastError;
+
+/**
+ * Number SchemaType constructor.
+ *
+ * @param {String} key
+ * @param {Object} options
+ * @inherits SchemaType
+ * @api public
+ */
+
+function SchemaNumber(key, options) {
+  SchemaType.call(this, key, options, 'Number');
+}
+
+/**
+ * Attaches a getter for all Number instances.
+ *
+ * #### Example:
+ *
+ *     // Make all numbers round down
+ *     mongoose.Number.get(function(v) { return Math.floor(v); });
+ *
+ *     const Model = mongoose.model('Test', new Schema({ test: Number }));
+ *     new Model({ test: 3.14 }).test; // 3
+ *
+ * @param {Function} getter
+ * @return {this}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaNumber.get = SchemaType.get;
+
+/**
+ * Sets a default option for all Number instances.
+ *
+ * #### Example:
+ *
+ *     // Make all numbers have option `min` equal to 0.
+ *     mongoose.Schema.Number.set('min', 0);
+ *
+ *     const Order = mongoose.model('Order', new Schema({ amount: Number }));
+ *     new Order({ amount: -10 }).validateSync().errors.amount.message; // Path `amount` must be larger than 0.
+ *
+ * @param {String} option The option you'd like to set the value for
+ * @param {Any} value value for option
+ * @return {undefined}
+ * @function set
+ * @static
+ * @api public
+ */
+
+SchemaNumber.set = SchemaType.set;
+
+SchemaNumber.setters = [];
+
+/*!
+ * ignore
+ */
+
+SchemaNumber._cast = castNumber;
+
+/**
+ * Get/set the function used to cast arbitrary values to numbers.
+ *
+ * #### Example:
+ *
+ *     // Make Mongoose cast empty strings '' to 0 for paths declared as numbers
+ *     const original = mongoose.Number.cast();
+ *     mongoose.Number.cast(v => {
+ *       if (v === '') { return 0; }
+ *       return original(v);
+ *     });
+ *
+ *     // Or disable casting entirely
+ *     mongoose.Number.cast(false);
+ *
+ * @param {Function} caster
+ * @return {Function}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaNumber.cast = function cast(caster) {
+  if (arguments.length === 0) {
+    return this._cast;
+  }
+  if (caster === false) {
+    caster = this._defaultCaster;
+  }
+  this._cast = caster;
+
+  return this._cast;
+};
+
+/*!
+ * ignore
+ */
+
+SchemaNumber._defaultCaster = v => {
+  if (typeof v !== 'number') {
+    throw new Error();
+  }
+  return v;
+};
+
+/**
+ * This schema type's name, to defend against minifiers that mangle
+ * function names.
+ *
+ * @api public
+ */
+SchemaNumber.schemaName = 'Number';
+
+SchemaNumber.defaultOptions = {};
+
+/*!
+ * Inherits from SchemaType.
+ */
+SchemaNumber.prototype = Object.create(SchemaType.prototype);
+SchemaNumber.prototype.constructor = SchemaNumber;
+SchemaNumber.prototype.OptionsConstructor = SchemaNumberOptions;
+
+/*!
+ * ignore
+ */
+
+SchemaNumber._checkRequired = v => typeof v === 'number' || v instanceof Number;
+
+/**
+ * Override the function the required validator uses to check whether a string
+ * passes the `required` check.
+ *
+ * @param {Function} fn
+ * @return {Function}
+ * @function checkRequired
+ * @static
+ * @api public
+ */
+
+SchemaNumber.checkRequired = SchemaType.checkRequired;
+
+/**
+ * Check if the given value satisfies a required validator.
+ *
+ * @param {Any} value
+ * @param {Document} doc
+ * @return {Boolean}
+ * @api public
+ */
+
+SchemaNumber.prototype.checkRequired = function checkRequired(value, doc) {
+  if (typeof value === 'object' && SchemaType._isRef(this, value, doc, true)) {
+    return value != null;
+  }
+
+  // `require('util').inherits()` does **not** copy static properties, and
+  // plugins like mongoose-float use `inherits()` for pre-ES6.
+  const _checkRequired = typeof this.constructor.checkRequired === 'function' ?
+    this.constructor.checkRequired() :
+    SchemaNumber.checkRequired();
+
+  return _checkRequired(value);
+};
+
+/**
+ * Sets a minimum number validator.
+ *
+ * #### Example:
+ *
+ *     const s = new Schema({ n: { type: Number, min: 10 })
+ *     const M = db.model('M', s)
+ *     const m = new M({ n: 9 })
+ *     m.save(function (err) {
+ *       console.error(err) // validator error
+ *       m.n = 10;
+ *       m.save() // success
+ *     })
+ *
+ *     // custom error messages
+ *     // We can also use the special {MIN} token which will be replaced with the invalid value
+ *     const min = [10, 'The value of path `{PATH}` ({VALUE}) is beneath the limit ({MIN}).'];
+ *     const schema = new Schema({ n: { type: Number, min: min })
+ *     const M = mongoose.model('Measurement', schema);
+ *     const s= new M({ n: 4 });
+ *     s.validate(function (err) {
+ *       console.log(String(err)) // ValidationError: The value of path `n` (4) is beneath the limit (10).
+ *     })
+ *
+ * @param {Number} value minimum number
+ * @param {String} [message] optional custom error message
+ * @return {SchemaType} this
+ * @see Customized Error Messages https://mongoosejs.com/docs/api/error.html#Error.messages
+ * @api public
+ */
+
+SchemaNumber.prototype.min = function(value, message) {
+  if (this.minValidator) {
+    this.validators = this.validators.filter(function(v) {
+      return v.validator !== this.minValidator;
+    }, this);
+  }
+
+  if (value !== null && value !== undefined) {
+    let msg = message || MongooseError.messages.Number.min;
+    msg = msg.replace(/{MIN}/, value);
+    this.validators.push({
+      validator: this.minValidator = function(v) {
+        return v == null || v >= value;
+      },
+      message: msg,
+      type: 'min',
+      min: value
+    });
+  }
+
+  return this;
+};
+
+/**
+ * Sets a maximum number validator.
+ *
+ * #### Example:
+ *
+ *     const s = new Schema({ n: { type: Number, max: 10 })
+ *     const M = db.model('M', s)
+ *     const m = new M({ n: 11 })
+ *     m.save(function (err) {
+ *       console.error(err) // validator error
+ *       m.n = 10;
+ *       m.save() // success
+ *     })
+ *
+ *     // custom error messages
+ *     // We can also use the special {MAX} token which will be replaced with the invalid value
+ *     const max = [10, 'The value of path `{PATH}` ({VALUE}) exceeds the limit ({MAX}).'];
+ *     const schema = new Schema({ n: { type: Number, max: max })
+ *     const M = mongoose.model('Measurement', schema);
+ *     const s= new M({ n: 4 });
+ *     s.validate(function (err) {
+ *       console.log(String(err)) // ValidationError: The value of path `n` (4) exceeds the limit (10).
+ *     })
+ *
+ * @param {Number} maximum number
+ * @param {String} [message] optional custom error message
+ * @return {SchemaType} this
+ * @see Customized Error Messages https://mongoosejs.com/docs/api/error.html#Error.messages
+ * @api public
+ */
+
+SchemaNumber.prototype.max = function(value, message) {
+  if (this.maxValidator) {
+    this.validators = this.validators.filter(function(v) {
+      return v.validator !== this.maxValidator;
+    }, this);
+  }
+
+  if (value !== null && value !== undefined) {
+    let msg = message || MongooseError.messages.Number.max;
+    msg = msg.replace(/{MAX}/, value);
+    this.validators.push({
+      validator: this.maxValidator = function(v) {
+        return v == null || v <= value;
+      },
+      message: msg,
+      type: 'max',
+      max: value
+    });
+  }
+
+  return this;
+};
+
+/**
+ * Sets a enum validator
+ *
+ * #### Example:
+ *
+ *     const s = new Schema({ n: { type: Number, enum: [1, 2, 3] });
+ *     const M = db.model('M', s);
+ *
+ *     const m = new M({ n: 4 });
+ *     await m.save(); // throws validation error
+ *
+ *     m.n = 3;
+ *     await m.save(); // succeeds
+ *
+ * @param {Array} values allowed values
+ * @param {String} [message] optional custom error message
+ * @return {SchemaType} this
+ * @see Customized Error Messages https://mongoosejs.com/docs/api/error.html#Error.messages
+ * @api public
+ */
+
+SchemaNumber.prototype.enum = function(values, message) {
+  if (this.enumValidator) {
+    this.validators = this.validators.filter(function(v) {
+      return v.validator !== this.enumValidator;
+    }, this);
+  }
+
+
+  if (!Array.isArray(values)) {
+    const isObjectSyntax = utils.isPOJO(values) && values.values != null;
+    if (isObjectSyntax) {
+      message = values.message;
+      values = values.values;
+    } else if (typeof values === 'number') {
+      values = Array.prototype.slice.call(arguments);
+      message = null;
+    }
+
+    if (utils.isPOJO(values)) {
+      values = Object.values(values);
+    }
+    message = message || MongooseError.messages.Number.enum;
+  }
+
+  message = message == null ? MongooseError.messages.Number.enum : message;
+
+  this.enumValidator = v => v == null || values.indexOf(v) !== -1;
+  this.validators.push({
+    validator: this.enumValidator,
+    message: message,
+    type: 'enum',
+    enumValues: values
+  });
+
+  return this;
+};
+
+/**
+ * Casts to number
+ *
+ * @param {Object} value value to cast
+ * @param {Document} doc document that triggers the casting
+ * @param {Boolean} init
+ * @api private
+ */
+
+SchemaNumber.prototype.cast = function(value, doc, init) {
+  if (typeof value !== 'number' && SchemaType._isRef(this, value, doc, init)) {
+    if (value == null || utils.isNonBuiltinObject(value)) {
+      return this._castRef(value, doc, init);
+    }
+  }
+
+  const val = value && typeof value._id !== 'undefined' ?
+    value._id : // documents
+    value;
+
+  let castNumber;
+  if (typeof this._castFunction === 'function') {
+    castNumber = this._castFunction;
+  } else if (typeof this.constructor.cast === 'function') {
+    castNumber = this.constructor.cast();
+  } else {
+    castNumber = SchemaNumber.cast();
+  }
+
+  try {
+    return castNumber(val);
+  } catch (err) {
+    throw new CastError('Number', val, this.path, err, this);
+  }
+};
+
+/*!
+ * ignore
+ */
+
+function handleSingle(val) {
+  return this.cast(val);
+}
+
+function handleArray(val) {
+  const _this = this;
+  if (!Array.isArray(val)) {
+    return [this.cast(val)];
+  }
+  return val.map(function(m) {
+    return _this.cast(m);
+  });
+}
+
+SchemaNumber.prototype.$conditionalHandlers = {
+  ...SchemaType.prototype.$conditionalHandlers,
+  $bitsAllClear: handleBitwiseOperator,
+  $bitsAnyClear: handleBitwiseOperator,
+  $bitsAllSet: handleBitwiseOperator,
+  $bitsAnySet: handleBitwiseOperator,
+  $gt: handleSingle,
+  $gte: handleSingle,
+  $lt: handleSingle,
+  $lte: handleSingle,
+  $mod: handleArray
+};
+
+/**
+ * Casts contents for queries.
+ *
+ * @param {String} $conditional
+ * @param {any} [value]
+ * @api private
+ */
+
+SchemaNumber.prototype.castForQuery = function($conditional, val, context) {
+  let handler;
+  if ($conditional != null) {
+    handler = this.$conditionalHandlers[$conditional];
+    if (!handler) {
+      throw new CastError('number', val, this.path, null, this);
+    }
+    return handler.call(this, val, context);
+  }
+
+  try {
+    val = this.applySetters(val, context);
+  } catch (err) {
+    if (err instanceof CastError && err.path === this.path && this.$fullPath != null) {
+      err.path = this.$fullPath;
+    }
+    throw err;
+  }
+
+  return val;
+};
+
+/*!
+ * Module exports.
+ */
+
+module.exports = SchemaNumber;
diff --git a/backend/node_modules/mongoose/lib/schema/objectId.js b/backend/node_modules/mongoose/lib/schema/objectId.js
new file mode 100644
index 0000000..cad0519
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/objectId.js
@@ -0,0 +1,297 @@
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const SchemaObjectIdOptions = require('../options/schemaObjectIdOptions');
+const SchemaType = require('../schemaType');
+const castObjectId = require('../cast/objectid');
+const getConstructorName = require('../helpers/getConstructorName');
+const oid = require('../types/objectid');
+const isBsonType = require('../helpers/isBsonType');
+const utils = require('../utils');
+
+const CastError = SchemaType.CastError;
+let Document;
+
+/**
+ * ObjectId SchemaType constructor.
+ *
+ * @param {String} key
+ * @param {Object} options
+ * @inherits SchemaType
+ * @api public
+ */
+
+function SchemaObjectId(key, options) {
+  const isKeyHexStr = typeof key === 'string' && key.length === 24 && /^[a-f0-9]+$/i.test(key);
+  const suppressWarning = options && options.suppressWarning;
+  if ((isKeyHexStr || typeof key === 'undefined') && !suppressWarning) {
+    utils.warn('mongoose: To create a new ObjectId please try ' +
+      '`Mongoose.Types.ObjectId` instead of using ' +
+      '`Mongoose.Schema.ObjectId`. Set the `suppressWarning` option if ' +
+      'you\'re trying to create a hex char path in your schema.');
+  }
+  SchemaType.call(this, key, options, 'ObjectId');
+}
+
+/**
+ * This schema type's name, to defend against minifiers that mangle
+ * function names.
+ *
+ * @api public
+ */
+SchemaObjectId.schemaName = 'ObjectId';
+
+SchemaObjectId.defaultOptions = {};
+
+/*!
+ * Inherits from SchemaType.
+ */
+SchemaObjectId.prototype = Object.create(SchemaType.prototype);
+SchemaObjectId.prototype.constructor = SchemaObjectId;
+SchemaObjectId.prototype.OptionsConstructor = SchemaObjectIdOptions;
+
+/**
+ * Attaches a getter for all ObjectId instances
+ *
+ * #### Example:
+ *
+ *     // Always convert to string when getting an ObjectId
+ *     mongoose.ObjectId.get(v => v.toString());
+ *
+ *     const Model = mongoose.model('Test', new Schema({}));
+ *     typeof (new Model({})._id); // 'string'
+ *
+ * @param {Function} getter
+ * @return {this}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaObjectId.get = SchemaType.get;
+
+/**
+ * Sets a default option for all ObjectId instances.
+ *
+ * #### Example:
+ *
+ *     // Make all object ids have option `required` equal to true.
+ *     mongoose.Schema.ObjectId.set('required', true);
+ *
+ *     const Order = mongoose.model('Order', new Schema({ userId: ObjectId }));
+ *     new Order({ }).validateSync().errors.userId.message; // Path `userId` is required.
+ *
+ * @param {String} option The option you'd like to set the value for
+ * @param {Any} value value for option
+ * @return {undefined}
+ * @function set
+ * @static
+ * @api public
+ */
+
+SchemaObjectId.set = SchemaType.set;
+
+SchemaObjectId.setters = [];
+
+/**
+ * Adds an auto-generated ObjectId default if turnOn is true.
+ * @param {Boolean} turnOn auto generated ObjectId defaults
+ * @api public
+ * @return {SchemaType} this
+ */
+
+SchemaObjectId.prototype.auto = function(turnOn) {
+  if (turnOn) {
+    this.default(defaultId);
+    this.set(resetId);
+  }
+
+  return this;
+};
+
+/*!
+ * ignore
+ */
+
+SchemaObjectId._checkRequired = v => isBsonType(v, 'ObjectId');
+
+/*!
+ * ignore
+ */
+
+SchemaObjectId._cast = castObjectId;
+
+/**
+ * Get/set the function used to cast arbitrary values to objectids.
+ *
+ * #### Example:
+ *
+ *     // Make Mongoose only try to cast length 24 strings. By default, any 12
+ *     // char string is a valid ObjectId.
+ *     const original = mongoose.ObjectId.cast();
+ *     mongoose.ObjectId.cast(v => {
+ *       assert.ok(typeof v !== 'string' || v.length === 24);
+ *       return original(v);
+ *     });
+ *
+ *     // Or disable casting entirely
+ *     mongoose.ObjectId.cast(false);
+ *
+ * @param {Function} caster
+ * @return {Function}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaObjectId.cast = function cast(caster) {
+  if (arguments.length === 0) {
+    return this._cast;
+  }
+  if (caster === false) {
+    caster = this._defaultCaster;
+  }
+  this._cast = caster;
+
+  return this._cast;
+};
+
+/*!
+ * ignore
+ */
+
+SchemaObjectId._defaultCaster = v => {
+  if (!(isBsonType(v, 'ObjectId'))) {
+    throw new Error(v + ' is not an instance of ObjectId');
+  }
+  return v;
+};
+
+/**
+ * Override the function the required validator uses to check whether a string
+ * passes the `required` check.
+ *
+ * #### Example:
+ *
+ *     // Allow empty strings to pass `required` check
+ *     mongoose.Schema.Types.String.checkRequired(v => v != null);
+ *
+ *     const M = mongoose.model({ str: { type: String, required: true } });
+ *     new M({ str: '' }).validateSync(); // `null`, validation passes!
+ *
+ * @param {Function} fn
+ * @return {Function}
+ * @function checkRequired
+ * @static
+ * @api public
+ */
+
+SchemaObjectId.checkRequired = SchemaType.checkRequired;
+
+/**
+ * Check if the given value satisfies a required validator.
+ *
+ * @param {Any} value
+ * @param {Document} doc
+ * @return {Boolean}
+ * @api public
+ */
+
+SchemaObjectId.prototype.checkRequired = function checkRequired(value, doc) {
+  if (SchemaType._isRef(this, value, doc, true)) {
+    return !!value;
+  }
+
+  // `require('util').inherits()` does **not** copy static properties, and
+  // plugins like mongoose-float use `inherits()` for pre-ES6.
+  const _checkRequired = typeof this.constructor.checkRequired === 'function' ?
+    this.constructor.checkRequired() :
+    SchemaObjectId.checkRequired();
+
+  return _checkRequired(value);
+};
+
+/**
+ * Casts to ObjectId
+ *
+ * @param {Object} value
+ * @param {Object} doc
+ * @param {Boolean} init whether this is an initialization cast
+ * @api private
+ */
+
+SchemaObjectId.prototype.cast = function(value, doc, init) {
+  if (!(isBsonType(value, 'ObjectId')) && SchemaType._isRef(this, value, doc, init)) {
+    // wait! we may need to cast this to a document
+    if ((getConstructorName(value) || '').toLowerCase() === 'objectid') {
+      return new oid(value.toHexString());
+    }
+
+    if (value == null || utils.isNonBuiltinObject(value)) {
+      return this._castRef(value, doc, init);
+    }
+  }
+
+  let castObjectId;
+  if (typeof this._castFunction === 'function') {
+    castObjectId = this._castFunction;
+  } else if (typeof this.constructor.cast === 'function') {
+    castObjectId = this.constructor.cast();
+  } else {
+    castObjectId = SchemaObjectId.cast();
+  }
+
+  try {
+    return castObjectId(value);
+  } catch (error) {
+    throw new CastError('ObjectId', value, this.path, error, this);
+  }
+};
+
+/*!
+ * ignore
+ */
+
+function handleSingle(val) {
+  return this.cast(val);
+}
+
+SchemaObjectId.prototype.$conditionalHandlers = {
+  ...SchemaType.prototype.$conditionalHandlers,
+  $gt: handleSingle,
+  $gte: handleSingle,
+  $lt: handleSingle,
+  $lte: handleSingle
+};
+
+/*!
+ * ignore
+ */
+
+function defaultId() {
+  return new oid();
+}
+
+defaultId.$runBeforeSetters = true;
+
+function resetId(v) {
+  Document || (Document = require('../document'));
+
+  if (this instanceof Document) {
+    if (v === void 0) {
+      const _v = new oid();
+      return _v;
+    }
+  }
+
+  return v;
+}
+
+/*!
+ * Module exports.
+ */
+
+module.exports = SchemaObjectId;
diff --git a/backend/node_modules/mongoose/lib/schema/operators/bitwise.js b/backend/node_modules/mongoose/lib/schema/operators/bitwise.js
new file mode 100644
index 0000000..07e18cd
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/operators/bitwise.js
@@ -0,0 +1,38 @@
+/*!
+ * Module requirements.
+ */
+
+'use strict';
+
+const CastError = require('../../error/cast');
+
+/*!
+ * ignore
+ */
+
+function handleBitwiseOperator(val) {
+  const _this = this;
+  if (Array.isArray(val)) {
+    return val.map(function(v) {
+      return _castNumber(_this.path, v);
+    });
+  } else if (Buffer.isBuffer(val)) {
+    return val;
+  }
+  // Assume trying to cast to number
+  return _castNumber(_this.path, val);
+}
+
+/*!
+ * ignore
+ */
+
+function _castNumber(path, num) {
+  const v = Number(num);
+  if (isNaN(v)) {
+    throw new CastError('number', num, path);
+  }
+  return v;
+}
+
+module.exports = handleBitwiseOperator;
diff --git a/backend/node_modules/mongoose/lib/schema/operators/exists.js b/backend/node_modules/mongoose/lib/schema/operators/exists.js
new file mode 100644
index 0000000..916b4cb
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/operators/exists.js
@@ -0,0 +1,12 @@
+'use strict';
+
+const castBoolean = require('../../cast/boolean');
+
+/*!
+ * ignore
+ */
+
+module.exports = function(val) {
+  const path = this != null ? this.path : null;
+  return castBoolean(val, path);
+};
diff --git a/backend/node_modules/mongoose/lib/schema/operators/geospatial.js b/backend/node_modules/mongoose/lib/schema/operators/geospatial.js
new file mode 100644
index 0000000..75feda6
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/operators/geospatial.js
@@ -0,0 +1,107 @@
+/*!
+ * Module requirements.
+ */
+
+'use strict';
+
+const castArraysOfNumbers = require('./helpers').castArraysOfNumbers;
+const castToNumber = require('./helpers').castToNumber;
+
+/*!
+ * ignore
+ */
+
+exports.cast$geoIntersects = cast$geoIntersects;
+exports.cast$near = cast$near;
+exports.cast$within = cast$within;
+
+function cast$near(val) {
+  const SchemaArray = require('../array');
+
+  if (Array.isArray(val)) {
+    castArraysOfNumbers(val, this);
+    return val;
+  }
+
+  _castMinMaxDistance(this, val);
+
+  if (val && val.$geometry) {
+    return cast$geometry(val, this);
+  }
+
+  if (!Array.isArray(val)) {
+    throw new TypeError('$near must be either an array or an object ' +
+      'with a $geometry property');
+  }
+
+  return SchemaArray.prototype.castForQuery.call(this, null, val);
+}
+
+function cast$geometry(val, self) {
+  switch (val.$geometry.type) {
+    case 'Polygon':
+    case 'LineString':
+    case 'Point':
+      castArraysOfNumbers(val.$geometry.coordinates, self);
+      break;
+    default:
+      // ignore unknowns
+      break;
+  }
+
+  _castMinMaxDistance(self, val);
+
+  return val;
+}
+
+function cast$within(val) {
+  _castMinMaxDistance(this, val);
+
+  if (val.$box || val.$polygon) {
+    const type = val.$box ? '$box' : '$polygon';
+    val[type].forEach(arr => {
+      if (!Array.isArray(arr)) {
+        const msg = 'Invalid $within $box argument. '
+            + 'Expected an array, received ' + arr;
+        throw new TypeError(msg);
+      }
+      arr.forEach((v, i) => {
+        arr[i] = castToNumber.call(this, v);
+      });
+    });
+  } else if (val.$center || val.$centerSphere) {
+    const type = val.$center ? '$center' : '$centerSphere';
+    val[type].forEach((item, i) => {
+      if (Array.isArray(item)) {
+        item.forEach((v, j) => {
+          item[j] = castToNumber.call(this, v);
+        });
+      } else {
+        val[type][i] = castToNumber.call(this, item);
+      }
+    });
+  } else if (val.$geometry) {
+    cast$geometry(val, this);
+  }
+
+  return val;
+}
+
+function cast$geoIntersects(val) {
+  const geo = val.$geometry;
+  if (!geo) {
+    return;
+  }
+
+  cast$geometry(val, this);
+  return val;
+}
+
+function _castMinMaxDistance(self, val) {
+  if (val.$maxDistance) {
+    val.$maxDistance = castToNumber.call(self, val.$maxDistance);
+  }
+  if (val.$minDistance) {
+    val.$minDistance = castToNumber.call(self, val.$minDistance);
+  }
+}
diff --git a/backend/node_modules/mongoose/lib/schema/operators/helpers.js b/backend/node_modules/mongoose/lib/schema/operators/helpers.js
new file mode 100644
index 0000000..4690ca3
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/operators/helpers.js
@@ -0,0 +1,32 @@
+'use strict';
+
+/*!
+ * Module requirements.
+ */
+
+const SchemaNumber = require('../number');
+
+/*!
+ * ignore
+ */
+
+exports.castToNumber = castToNumber;
+exports.castArraysOfNumbers = castArraysOfNumbers;
+
+/*!
+ * ignore
+ */
+
+function castToNumber(val) {
+  return SchemaNumber.cast()(val);
+}
+
+function castArraysOfNumbers(arr, self) {
+  arr.forEach(function(v, i) {
+    if (Array.isArray(v)) {
+      castArraysOfNumbers(v, self);
+    } else {
+      arr[i] = castToNumber.call(self, v);
+    }
+  });
+}
diff --git a/backend/node_modules/mongoose/lib/schema/operators/text.js b/backend/node_modules/mongoose/lib/schema/operators/text.js
new file mode 100644
index 0000000..79be4ff
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/operators/text.js
@@ -0,0 +1,39 @@
+'use strict';
+
+const CastError = require('../../error/cast');
+const castBoolean = require('../../cast/boolean');
+const castString = require('../../cast/string');
+
+/**
+ * Casts val to an object suitable for `$text`. Throws an error if the object
+ * can't be casted.
+ *
+ * @param {Any} val value to cast
+ * @param {String} [path] path to associate with any errors that occured
+ * @return {Object} casted object
+ * @see https://www.mongodb.com/docs/manual/reference/operator/query/text/
+ * @api private
+ */
+
+module.exports = function castTextSearch(val, path) {
+  if (val == null || typeof val !== 'object') {
+    throw new CastError('$text', val, path);
+  }
+
+  if (val.$search != null) {
+    val.$search = castString(val.$search, path + '.$search');
+  }
+  if (val.$language != null) {
+    val.$language = castString(val.$language, path + '.$language');
+  }
+  if (val.$caseSensitive != null) {
+    val.$caseSensitive = castBoolean(val.$caseSensitive,
+      path + '.$castSensitive');
+  }
+  if (val.$diacriticSensitive != null) {
+    val.$diacriticSensitive = castBoolean(val.$diacriticSensitive,
+      path + '.$diacriticSensitive');
+  }
+
+  return val;
+};
diff --git a/backend/node_modules/mongoose/lib/schema/operators/type.js b/backend/node_modules/mongoose/lib/schema/operators/type.js
new file mode 100644
index 0000000..952c790
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/operators/type.js
@@ -0,0 +1,20 @@
+'use strict';
+
+/*!
+ * ignore
+ */
+
+module.exports = function(val) {
+  if (Array.isArray(val)) {
+    if (!val.every(v => typeof v === 'number' || typeof v === 'string')) {
+      throw new Error('$type array values must be strings or numbers');
+    }
+    return val;
+  }
+
+  if (typeof val !== 'number' && typeof val !== 'string') {
+    throw new Error('$type parameter must be number, string, or array of numbers and strings');
+  }
+
+  return val;
+};
diff --git a/backend/node_modules/mongoose/lib/schema/string.js b/backend/node_modules/mongoose/lib/schema/string.js
new file mode 100644
index 0000000..d62e233
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/string.js
@@ -0,0 +1,705 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const SchemaType = require('../schemaType');
+const MongooseError = require('../error/index');
+const SchemaStringOptions = require('../options/schemaStringOptions');
+const castString = require('../cast/string');
+const utils = require('../utils');
+const isBsonType = require('../helpers/isBsonType');
+
+const CastError = SchemaType.CastError;
+
+/**
+ * String SchemaType constructor.
+ *
+ * @param {String} key
+ * @param {Object} options
+ * @inherits SchemaType
+ * @api public
+ */
+
+function SchemaString(key, options) {
+  this.enumValues = [];
+  this.regExp = null;
+  SchemaType.call(this, key, options, 'String');
+}
+
+/**
+ * This schema type's name, to defend against minifiers that mangle
+ * function names.
+ *
+ * @api public
+ */
+SchemaString.schemaName = 'String';
+
+SchemaString.defaultOptions = {};
+
+/*!
+ * Inherits from SchemaType.
+ */
+SchemaString.prototype = Object.create(SchemaType.prototype);
+SchemaString.prototype.constructor = SchemaString;
+Object.defineProperty(SchemaString.prototype, 'OptionsConstructor', {
+  configurable: false,
+  enumerable: false,
+  writable: false,
+  value: SchemaStringOptions
+});
+
+/*!
+ * ignore
+ */
+
+SchemaString._cast = castString;
+
+/**
+ * Get/set the function used to cast arbitrary values to strings.
+ *
+ * #### Example:
+ *
+ *     // Throw an error if you pass in an object. Normally, Mongoose allows
+ *     // objects with custom `toString()` functions.
+ *     const original = mongoose.Schema.Types.String.cast();
+ *     mongoose.Schema.Types.String.cast(v => {
+ *       assert.ok(v == null || typeof v !== 'object');
+ *       return original(v);
+ *     });
+ *
+ *     // Or disable casting entirely
+ *     mongoose.Schema.Types.String.cast(false);
+ *
+ * @param {Function} caster
+ * @return {Function}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaString.cast = function cast(caster) {
+  if (arguments.length === 0) {
+    return this._cast;
+  }
+  if (caster === false) {
+    caster = this._defaultCaster;
+  }
+  this._cast = caster;
+
+  return this._cast;
+};
+
+/*!
+ * ignore
+ */
+
+SchemaString._defaultCaster = v => {
+  if (v != null && typeof v !== 'string') {
+    throw new Error();
+  }
+  return v;
+};
+
+/**
+ * Attaches a getter for all String instances.
+ *
+ * #### Example:
+ *
+ *     // Make all numbers round down
+ *     mongoose.Schema.String.get(v => v.toLowerCase());
+ *
+ *     const Model = mongoose.model('Test', new Schema({ test: String }));
+ *     new Model({ test: 'FOO' }).test; // 'foo'
+ *
+ * @param {Function} getter
+ * @return {this}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaString.get = SchemaType.get;
+
+/**
+ * Sets a default option for all String instances.
+ *
+ * #### Example:
+ *
+ *     // Make all strings have option `trim` equal to true.
+ *     mongoose.Schema.String.set('trim', true);
+ *
+ *     const User = mongoose.model('User', new Schema({ name: String }));
+ *     new User({ name: '   John Doe   ' }).name; // 'John Doe'
+ *
+ * @param {String} option The option you'd like to set the value for
+ * @param {Any} value value for option
+ * @return {undefined}
+ * @function set
+ * @static
+ * @api public
+ */
+
+SchemaString.set = SchemaType.set;
+
+SchemaString.setters = [];
+
+/*!
+ * ignore
+ */
+
+SchemaString._checkRequired = v => (v instanceof String || typeof v === 'string') && v.length;
+
+/**
+ * Override the function the required validator uses to check whether a string
+ * passes the `required` check.
+ *
+ * #### Example:
+ *
+ *     // Allow empty strings to pass `required` check
+ *     mongoose.Schema.Types.String.checkRequired(v => v != null);
+ *
+ *     const M = mongoose.model({ str: { type: String, required: true } });
+ *     new M({ str: '' }).validateSync(); // `null`, validation passes!
+ *
+ * @param {Function} fn
+ * @return {Function}
+ * @function checkRequired
+ * @static
+ * @api public
+ */
+
+SchemaString.checkRequired = SchemaType.checkRequired;
+
+/**
+ * Adds an enum validator
+ *
+ * #### Example:
+ *
+ *     const states = ['opening', 'open', 'closing', 'closed']
+ *     const s = new Schema({ state: { type: String, enum: states }})
+ *     const M = db.model('M', s)
+ *     const m = new M({ state: 'invalid' })
+ *     await m.save()
+ *       .catch((err) => console.error(err)); // ValidationError: `invalid` is not a valid enum value for path `state`.
+ *     m.state = 'open';
+ *     await m.save();
+ *     // success
+ *
+ *     // or with custom error messages
+ *     const enum = {
+ *       values: ['opening', 'open', 'closing', 'closed'],
+ *       message: 'enum validator failed for path `{PATH}` with value `{VALUE}`'
+ *     }
+ *     const s = new Schema({ state: { type: String, enum: enum })
+ *     const M = db.model('M', s)
+ *     const m = new M({ state: 'invalid' })
+ *     await m.save()
+ *       .catch((err) => console.error(err)); // ValidationError: enum validator failed for path `state` with value `invalid`
+ *     m.state = 'open';
+ *     await m.save();
+ *     // success
+ *
+ * @param {...String|Object} [args] enumeration values
+ * @return {SchemaType} this
+ * @see Customized Error Messages https://mongoosejs.com/docs/api/error.html#Error.messages
+ * @see Enums in JavaScript https://masteringjs.io/tutorials/fundamentals/enum
+ * @api public
+ */
+
+SchemaString.prototype.enum = function() {
+  if (this.enumValidator) {
+    this.validators = this.validators.filter(function(v) {
+      return v.validator !== this.enumValidator;
+    }, this);
+    this.enumValidator = false;
+  }
+
+  if (arguments[0] === void 0 || arguments[0] === false) {
+    return this;
+  }
+
+  let values;
+  let errorMessage;
+
+  if (utils.isObject(arguments[0])) {
+    if (Array.isArray(arguments[0].values)) {
+      values = arguments[0].values;
+      errorMessage = arguments[0].message;
+    } else {
+      values = utils.object.vals(arguments[0]);
+      errorMessage = MongooseError.messages.String.enum;
+    }
+  } else {
+    values = arguments;
+    errorMessage = MongooseError.messages.String.enum;
+  }
+
+  for (const value of values) {
+    if (value !== undefined) {
+      this.enumValues.push(this.cast(value));
+    }
+  }
+
+  const vals = this.enumValues;
+  this.enumValidator = function(v) {
+    return null == v || ~vals.indexOf(v);
+  };
+  this.validators.push({
+    validator: this.enumValidator,
+    message: errorMessage,
+    type: 'enum',
+    enumValues: vals
+  });
+
+  return this;
+};
+
+/**
+ * Adds a lowercase [setter](https://mongoosejs.com/docs/api/schematype.html#SchemaType.prototype.set()).
+ *
+ * #### Example:
+ *
+ *     const s = new Schema({ email: { type: String, lowercase: true }})
+ *     const M = db.model('M', s);
+ *     const m = new M({ email: 'SomeEmail@example.COM' });
+ *     console.log(m.email) // someemail@example.com
+ *     M.find({ email: 'SomeEmail@example.com' }); // Queries by 'someemail@example.com'
+ *
+ * Note that `lowercase` does **not** affect regular expression queries:
+ *
+ * #### Example:
+ *
+ *     // Still queries for documents whose `email` matches the regular
+ *     // expression /SomeEmail/. Mongoose does **not** convert the RegExp
+ *     // to lowercase.
+ *     M.find({ email: /SomeEmail/ });
+ *
+ * @api public
+ * @return {SchemaType} this
+ */
+
+SchemaString.prototype.lowercase = function(shouldApply) {
+  if (arguments.length > 0 && !shouldApply) {
+    return this;
+  }
+  return this.set(v => {
+    if (typeof v !== 'string') {
+      v = this.cast(v);
+    }
+    if (v) {
+      return v.toLowerCase();
+    }
+    return v;
+  });
+};
+
+/**
+ * Adds an uppercase [setter](https://mongoosejs.com/docs/api/schematype.html#SchemaType.prototype.set()).
+ *
+ * #### Example:
+ *
+ *     const s = new Schema({ caps: { type: String, uppercase: true }})
+ *     const M = db.model('M', s);
+ *     const m = new M({ caps: 'an example' });
+ *     console.log(m.caps) // AN EXAMPLE
+ *     M.find({ caps: 'an example' }) // Matches documents where caps = 'AN EXAMPLE'
+ *
+ * Note that `uppercase` does **not** affect regular expression queries:
+ *
+ * #### Example:
+ *
+ *     // Mongoose does **not** convert the RegExp to uppercase.
+ *     M.find({ email: /an example/ });
+ *
+ * @api public
+ * @return {SchemaType} this
+ */
+
+SchemaString.prototype.uppercase = function(shouldApply) {
+  if (arguments.length > 0 && !shouldApply) {
+    return this;
+  }
+  return this.set(v => {
+    if (typeof v !== 'string') {
+      v = this.cast(v);
+    }
+    if (v) {
+      return v.toUpperCase();
+    }
+    return v;
+  });
+};
+
+/**
+ * Adds a trim [setter](https://mongoosejs.com/docs/api/schematype.html#SchemaType.prototype.set()).
+ *
+ * The string value will be [trimmed](https://masteringjs.io/tutorials/fundamentals/trim-string) when set.
+ *
+ * #### Example:
+ *
+ *     const s = new Schema({ name: { type: String, trim: true }});
+ *     const M = db.model('M', s);
+ *     const string = ' some name ';
+ *     console.log(string.length); // 11
+ *     const m = new M({ name: string });
+ *     console.log(m.name.length); // 9
+ *
+ *     // Equivalent to `findOne({ name: string.trim() })`
+ *     M.findOne({ name: string });
+ *
+ * Note that `trim` does **not** affect regular expression queries:
+ *
+ * #### Example:
+ *
+ *     // Mongoose does **not** trim whitespace from the RegExp.
+ *     M.find({ name: / some name / });
+ *
+ * @api public
+ * @return {SchemaType} this
+ */
+
+SchemaString.prototype.trim = function(shouldTrim) {
+  if (arguments.length > 0 && !shouldTrim) {
+    return this;
+  }
+  return this.set(v => {
+    if (typeof v !== 'string') {
+      v = this.cast(v);
+    }
+    if (v) {
+      return v.trim();
+    }
+    return v;
+  });
+};
+
+/**
+ * Sets a minimum length validator.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ postalCode: { type: String, minlength: 5 })
+ *     const Address = db.model('Address', schema)
+ *     const address = new Address({ postalCode: '9512' })
+ *     address.save(function (err) {
+ *       console.error(err) // validator error
+ *       address.postalCode = '95125';
+ *       address.save() // success
+ *     })
+ *
+ *     // custom error messages
+ *     // We can also use the special {MINLENGTH} token which will be replaced with the minimum allowed length
+ *     const minlength = [5, 'The value of path `{PATH}` (`{VALUE}`) is shorter than the minimum allowed length ({MINLENGTH}).'];
+ *     const schema = new Schema({ postalCode: { type: String, minlength: minlength })
+ *     const Address = mongoose.model('Address', schema);
+ *     const address = new Address({ postalCode: '9512' });
+ *     address.validate(function (err) {
+ *       console.log(String(err)) // ValidationError: The value of path `postalCode` (`9512`) is shorter than the minimum length (5).
+ *     })
+ *
+ * @param {Number} value minimum string length
+ * @param {String} [message] optional custom error message
+ * @return {SchemaType} this
+ * @see Customized Error Messages https://mongoosejs.com/docs/api/error.html#Error.messages
+ * @api public
+ */
+
+SchemaString.prototype.minlength = function(value, message) {
+  if (this.minlengthValidator) {
+    this.validators = this.validators.filter(function(v) {
+      return v.validator !== this.minlengthValidator;
+    }, this);
+  }
+
+  if (value !== null && value !== undefined) {
+    let msg = message || MongooseError.messages.String.minlength;
+    msg = msg.replace(/{MINLENGTH}/, value);
+    this.validators.push({
+      validator: this.minlengthValidator = function(v) {
+        return v === null || v.length >= value;
+      },
+      message: msg,
+      type: 'minlength',
+      minlength: value
+    });
+  }
+
+  return this;
+};
+
+SchemaString.prototype.minLength = SchemaString.prototype.minlength;
+
+/**
+ * Sets a maximum length validator.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ postalCode: { type: String, maxlength: 9 })
+ *     const Address = db.model('Address', schema)
+ *     const address = new Address({ postalCode: '9512512345' })
+ *     address.save(function (err) {
+ *       console.error(err) // validator error
+ *       address.postalCode = '95125';
+ *       address.save() // success
+ *     })
+ *
+ *     // custom error messages
+ *     // We can also use the special {MAXLENGTH} token which will be replaced with the maximum allowed length
+ *     const maxlength = [9, 'The value of path `{PATH}` (`{VALUE}`) exceeds the maximum allowed length ({MAXLENGTH}).'];
+ *     const schema = new Schema({ postalCode: { type: String, maxlength: maxlength })
+ *     const Address = mongoose.model('Address', schema);
+ *     const address = new Address({ postalCode: '9512512345' });
+ *     address.validate(function (err) {
+ *       console.log(String(err)) // ValidationError: The value of path `postalCode` (`9512512345`) exceeds the maximum allowed length (9).
+ *     })
+ *
+ * @param {Number} value maximum string length
+ * @param {String} [message] optional custom error message
+ * @return {SchemaType} this
+ * @see Customized Error Messages https://mongoosejs.com/docs/api/error.html#Error.messages
+ * @api public
+ */
+
+SchemaString.prototype.maxlength = function(value, message) {
+  if (this.maxlengthValidator) {
+    this.validators = this.validators.filter(function(v) {
+      return v.validator !== this.maxlengthValidator;
+    }, this);
+  }
+
+  if (value !== null && value !== undefined) {
+    let msg = message || MongooseError.messages.String.maxlength;
+    msg = msg.replace(/{MAXLENGTH}/, value);
+    this.validators.push({
+      validator: this.maxlengthValidator = function(v) {
+        return v === null || v.length <= value;
+      },
+      message: msg,
+      type: 'maxlength',
+      maxlength: value
+    });
+  }
+
+  return this;
+};
+
+SchemaString.prototype.maxLength = SchemaString.prototype.maxlength;
+
+/**
+ * Sets a regexp validator.
+ *
+ * Any value that does not pass `regExp`.test(val) will fail validation.
+ *
+ * #### Example:
+ *
+ *     const s = new Schema({ name: { type: String, match: /^a/ }})
+ *     const M = db.model('M', s)
+ *     const m = new M({ name: 'I am invalid' })
+ *     m.validate(function (err) {
+ *       console.error(String(err)) // "ValidationError: Path `name` is invalid (I am invalid)."
+ *       m.name = 'apples'
+ *       m.validate(function (err) {
+ *         assert.ok(err) // success
+ *       })
+ *     })
+ *
+ *     // using a custom error message
+ *     const match = [ /\.html$/, "That file doesn't end in .html ({VALUE})" ];
+ *     const s = new Schema({ file: { type: String, match: match }})
+ *     const M = db.model('M', s);
+ *     const m = new M({ file: 'invalid' });
+ *     m.validate(function (err) {
+ *       console.log(String(err)) // "ValidationError: That file doesn't end in .html (invalid)"
+ *     })
+ *
+ * Empty strings, `undefined`, and `null` values always pass the match validator. If you require these values, enable the `required` validator also.
+ *
+ *     const s = new Schema({ name: { type: String, match: /^a/, required: true }})
+ *
+ * @param {RegExp} regExp regular expression to test against
+ * @param {String} [message] optional custom error message
+ * @return {SchemaType} this
+ * @see Customized Error Messages https://mongoosejs.com/docs/api/error.html#Error.messages
+ * @api public
+ */
+
+SchemaString.prototype.match = function match(regExp, message) {
+  // yes, we allow multiple match validators
+
+  const msg = message || MongooseError.messages.String.match;
+
+  const matchValidator = function(v) {
+    if (!regExp) {
+      return false;
+    }
+
+    // In case RegExp happens to have `/g` flag set, we need to reset the
+    // `lastIndex`, otherwise `match` will intermittently fail.
+    regExp.lastIndex = 0;
+
+    const ret = ((v != null && v !== '')
+      ? regExp.test(v)
+      : true);
+    return ret;
+  };
+
+  this.validators.push({
+    validator: matchValidator,
+    message: msg,
+    type: 'regexp',
+    regexp: regExp
+  });
+  return this;
+};
+
+/**
+ * Check if the given value satisfies the `required` validator. The value is
+ * considered valid if it is a string (that is, not `null` or `undefined`) and
+ * has positive length. The `required` validator **will** fail for empty
+ * strings.
+ *
+ * @param {Any} value
+ * @param {Document} doc
+ * @return {Boolean}
+ * @api public
+ */
+
+SchemaString.prototype.checkRequired = function checkRequired(value, doc) {
+  if (typeof value === 'object' && SchemaType._isRef(this, value, doc, true)) {
+    return value != null;
+  }
+
+  // `require('util').inherits()` does **not** copy static properties, and
+  // plugins like mongoose-float use `inherits()` for pre-ES6.
+  const _checkRequired = typeof this.constructor.checkRequired === 'function' ?
+    this.constructor.checkRequired() :
+    SchemaString.checkRequired();
+
+  return _checkRequired(value);
+};
+
+/**
+ * Casts to String
+ *
+ * @api private
+ */
+
+SchemaString.prototype.cast = function(value, doc, init) {
+  if (typeof value !== 'string' && SchemaType._isRef(this, value, doc, init)) {
+    return this._castRef(value, doc, init);
+  }
+
+  let castString;
+  if (typeof this._castFunction === 'function') {
+    castString = this._castFunction;
+  } else if (typeof this.constructor.cast === 'function') {
+    castString = this.constructor.cast();
+  } else {
+    castString = SchemaString.cast();
+  }
+
+  try {
+    return castString(value);
+  } catch (error) {
+    throw new CastError('string', value, this.path, null, this);
+  }
+};
+
+/*!
+ * ignore
+ */
+
+function handleSingle(val, context) {
+  return this.castForQuery(null, val, context);
+}
+
+/*!
+ * ignore
+ */
+
+function handleArray(val, context) {
+  const _this = this;
+  if (!Array.isArray(val)) {
+    return [this.castForQuery(null, val, context)];
+  }
+  return val.map(function(m) {
+    return _this.castForQuery(null, m, context);
+  });
+}
+
+/*!
+ * ignore
+ */
+
+function handleSingleNoSetters(val) {
+  if (val == null) {
+    return this._castNullish(val);
+  }
+
+  return this.cast(val, this);
+}
+
+const $conditionalHandlers = {
+  ...SchemaType.prototype.$conditionalHandlers,
+  $all: handleArray,
+  $gt: handleSingle,
+  $gte: handleSingle,
+  $lt: handleSingle,
+  $lte: handleSingle,
+  $options: handleSingleNoSetters,
+  $regex: function handle$regex(val) {
+    if (Object.prototype.toString.call(val) === '[object RegExp]') {
+      return val;
+    }
+
+    return handleSingleNoSetters.call(this, val);
+  },
+  $not: handleSingle
+};
+
+Object.defineProperty(SchemaString.prototype, '$conditionalHandlers', {
+  configurable: false,
+  enumerable: false,
+  writable: false,
+  value: Object.freeze($conditionalHandlers)
+});
+
+/**
+ * Casts contents for queries.
+ *
+ * @param {String} $conditional
+ * @param {any} [val]
+ * @api private
+ */
+
+SchemaString.prototype.castForQuery = function($conditional, val, context) {
+  let handler;
+  if ($conditional != null) {
+    handler = this.$conditionalHandlers[$conditional];
+    if (!handler) {
+      throw new Error('Can\'t use ' + $conditional + ' with String.');
+    }
+    return handler.call(this, val, context);
+  }
+
+  if (Object.prototype.toString.call(val) === '[object RegExp]' || isBsonType(val, 'BSONRegExp')) {
+    return val;
+  }
+
+  try {
+    return this.applySetters(val, context);
+  } catch (err) {
+    if (err instanceof CastError && err.path === this.path && this.$fullPath != null) {
+      err.path = this.$fullPath;
+    }
+    throw err;
+  }
+};
+
+/*!
+ * Module exports.
+ */
+
+module.exports = SchemaString;
diff --git a/backend/node_modules/mongoose/lib/schema/subdocument.js b/backend/node_modules/mongoose/lib/schema/subdocument.js
new file mode 100644
index 0000000..9a77d82
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/subdocument.js
@@ -0,0 +1,398 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const CastError = require('../error/cast');
+const EventEmitter = require('events').EventEmitter;
+const ObjectExpectedError = require('../error/objectExpected');
+const SchemaSubdocumentOptions = require('../options/schemaSubdocumentOptions');
+const SchemaType = require('../schemaType');
+const applyDefaults = require('../helpers/document/applyDefaults');
+const $exists = require('./operators/exists');
+const castToNumber = require('./operators/helpers').castToNumber;
+const discriminator = require('../helpers/model/discriminator');
+const geospatial = require('./operators/geospatial');
+const getConstructor = require('../helpers/discriminator/getConstructor');
+const handleIdOption = require('../helpers/schema/handleIdOption');
+const internalToObjectOptions = require('../options').internalToObjectOptions;
+const isExclusive = require('../helpers/projection/isExclusive');
+const utils = require('../utils');
+const InvalidSchemaOptionError = require('../error/invalidSchemaOption');
+
+let SubdocumentType;
+
+module.exports = SchemaSubdocument;
+
+/**
+ * Single nested subdocument SchemaType constructor.
+ *
+ * @param {Schema} schema
+ * @param {String} path
+ * @param {Object} options
+ * @inherits SchemaType
+ * @api public
+ */
+
+function SchemaSubdocument(schema, path, options) {
+  if (schema.options.timeseries) {
+    throw new InvalidSchemaOptionError(path, 'timeseries');
+  }
+  const schemaTypeIdOption = SchemaSubdocument.defaultOptions &&
+    SchemaSubdocument.defaultOptions._id;
+  if (schemaTypeIdOption != null) {
+    options = options || {};
+    options._id = schemaTypeIdOption;
+  }
+
+  schema = handleIdOption(schema, options);
+
+  this.caster = _createConstructor(schema, null, options);
+  this.caster.path = path;
+  this.caster.prototype.$basePath = path;
+  this.schema = schema;
+  this.$isSingleNested = true;
+  this.base = schema.base;
+  SchemaType.call(this, path, options, 'Embedded');
+}
+
+/*!
+ * ignore
+ */
+
+SchemaSubdocument.prototype = Object.create(SchemaType.prototype);
+SchemaSubdocument.prototype.constructor = SchemaSubdocument;
+SchemaSubdocument.prototype.OptionsConstructor = SchemaSubdocumentOptions;
+
+/*!
+ * ignore
+ */
+
+function _createConstructor(schema, baseClass, options) {
+  // lazy load
+  SubdocumentType || (SubdocumentType = require('../types/subdocument'));
+
+  const _embedded = function SingleNested(value, path, parent) {
+    this.$__parent = parent;
+    SubdocumentType.apply(this, arguments);
+
+    if (parent == null) {
+      return;
+    }
+    this.$session(parent.$session());
+  };
+
+  schema._preCompile();
+
+  const proto = baseClass != null ? baseClass.prototype : SubdocumentType.prototype;
+  _embedded.prototype = Object.create(proto);
+  _embedded.prototype.$__setSchema(schema);
+  _embedded.prototype.constructor = _embedded;
+  _embedded.$__required = options?.required;
+  _embedded.base = schema.base;
+  _embedded.schema = schema;
+  _embedded.$isSingleNested = true;
+  _embedded.events = new EventEmitter();
+  _embedded.prototype.toBSON = function() {
+    return this.toObject(internalToObjectOptions);
+  };
+
+  // apply methods
+  for (const i in schema.methods) {
+    _embedded.prototype[i] = schema.methods[i];
+  }
+
+  // apply statics
+  for (const i in schema.statics) {
+    _embedded[i] = schema.statics[i];
+  }
+
+  for (const i in EventEmitter.prototype) {
+    _embedded[i] = EventEmitter.prototype[i];
+  }
+
+  return _embedded;
+}
+
+/**
+ * Special case for when users use a common location schema to represent
+ * locations for use with $geoWithin.
+ * https://www.mongodb.com/docs/manual/reference/operator/query/geoWithin/
+ *
+ * @param {Object} val
+ * @api private
+ */
+
+SchemaSubdocument.prototype.$conditionalHandlers.$geoWithin = function handle$geoWithin(val, context) {
+  return { $geometry: this.castForQuery(null, val.$geometry, context) };
+};
+
+/*!
+ * ignore
+ */
+
+SchemaSubdocument.prototype.$conditionalHandlers.$near =
+SchemaSubdocument.prototype.$conditionalHandlers.$nearSphere = geospatial.cast$near;
+
+SchemaSubdocument.prototype.$conditionalHandlers.$within =
+SchemaSubdocument.prototype.$conditionalHandlers.$geoWithin = geospatial.cast$within;
+
+SchemaSubdocument.prototype.$conditionalHandlers.$geoIntersects =
+  geospatial.cast$geoIntersects;
+
+SchemaSubdocument.prototype.$conditionalHandlers.$minDistance = castToNumber;
+SchemaSubdocument.prototype.$conditionalHandlers.$maxDistance = castToNumber;
+
+SchemaSubdocument.prototype.$conditionalHandlers.$exists = $exists;
+
+/**
+ * Casts contents
+ *
+ * @param {Object} value
+ * @api private
+ */
+
+SchemaSubdocument.prototype.cast = function(val, doc, init, priorVal, options) {
+  if (val && val.$isSingleNested && val.parent === doc) {
+    return val;
+  }
+
+  if (val != null && (typeof val !== 'object' || Array.isArray(val))) {
+    throw new ObjectExpectedError(this.path, val);
+  }
+
+  const discriminatorKeyPath = this.schema.path(this.schema.options.discriminatorKey);
+  const defaultDiscriminatorValue = discriminatorKeyPath == null ? null : discriminatorKeyPath.getDefault(doc);
+  const Constructor = getConstructor(this.caster, val, defaultDiscriminatorValue);
+
+  let subdoc;
+
+  // Only pull relevant selected paths and pull out the base path
+  const parentSelected = doc && doc.$__ && doc.$__.selected;
+  const path = this.path;
+  const selected = parentSelected == null ? null : Object.keys(parentSelected).reduce((obj, key) => {
+    if (key.startsWith(path + '.')) {
+      obj = obj || {};
+      obj[key.substring(path.length + 1)] = parentSelected[key];
+    }
+    return obj;
+  }, null);
+  if (init) {
+    subdoc = new Constructor(void 0, selected, doc, false, { defaults: false });
+    delete subdoc.$__.defaults;
+    subdoc.$init(val);
+    const exclude = isExclusive(selected);
+    applyDefaults(subdoc, selected, exclude);
+  } else {
+    options = Object.assign({}, options, { priorDoc: priorVal });
+    if (Object.keys(val).length === 0) {
+      return new Constructor({}, selected, doc, undefined, options);
+    }
+
+    return new Constructor(val, selected, doc, undefined, options);
+  }
+
+  return subdoc;
+};
+
+/**
+ * Casts contents for query
+ *
+ * @param {string} [$conditional] optional query operator (like `$eq` or `$in`)
+ * @param {any} value
+ * @api private
+ */
+
+SchemaSubdocument.prototype.castForQuery = function($conditional, val, context, options) {
+  let handler;
+  if ($conditional != null) {
+    handler = this.$conditionalHandlers[$conditional];
+    if (!handler) {
+      throw new Error('Can\'t use ' + $conditional);
+    }
+    return handler.call(this, val);
+  }
+  if (val == null) {
+    return val;
+  }
+
+  const Constructor = getConstructor(this.caster, val);
+  if (val instanceof Constructor) {
+    return val;
+  }
+
+  if (this.options.runSetters) {
+    val = this._applySetters(val, context);
+  }
+
+  const overrideStrict = options != null && options.strict != null ?
+    options.strict :
+    void 0;
+
+  try {
+    val = new Constructor(val, overrideStrict);
+  } catch (error) {
+    // Make sure we always wrap in a CastError (gh-6803)
+    if (!(error instanceof CastError)) {
+      throw new CastError('Embedded', val, this.path, error, this);
+    }
+    throw error;
+  }
+  return val;
+};
+
+/**
+ * Async validation on this single nested doc.
+ *
+ * @api private
+ */
+
+SchemaSubdocument.prototype.doValidate = function(value, fn, scope, options) {
+  const Constructor = getConstructor(this.caster, value);
+
+  if (value && !(value instanceof Constructor)) {
+    value = new Constructor(value, null, (scope != null && scope.$__ != null) ? scope : null);
+  }
+
+  if (options && options.skipSchemaValidators) {
+    if (!value) {
+      return fn(null);
+    }
+    return value.validate().then(() => fn(null), err => fn(err));
+  }
+
+  SchemaType.prototype.doValidate.call(this, value, function(error) {
+    if (error) {
+      return fn(error);
+    }
+    if (!value) {
+      return fn(null);
+    }
+
+    value.validate().then(() => fn(null), err => fn(err));
+  }, scope, options);
+};
+
+/**
+ * Synchronously validate this single nested doc
+ *
+ * @api private
+ */
+
+SchemaSubdocument.prototype.doValidateSync = function(value, scope, options) {
+  if (!options || !options.skipSchemaValidators) {
+    const schemaTypeError = SchemaType.prototype.doValidateSync.call(this, value, scope);
+    if (schemaTypeError) {
+      return schemaTypeError;
+    }
+  }
+  if (!value) {
+    return;
+  }
+  return value.validateSync();
+};
+
+/**
+ * Adds a discriminator to this single nested subdocument.
+ *
+ * #### Example:
+ *
+ *     const shapeSchema = Schema({ name: String }, { discriminatorKey: 'kind' });
+ *     const schema = Schema({ shape: shapeSchema });
+ *
+ *     const singleNestedPath = parentSchema.path('shape');
+ *     singleNestedPath.discriminator('Circle', Schema({ radius: Number }));
+ *
+ * @param {String} name
+ * @param {Schema} schema fields to add to the schema for instances of this sub-class
+ * @param {Object|string} [options] If string, same as `options.value`.
+ * @param {String} [options.value] the string stored in the `discriminatorKey` property. If not specified, Mongoose uses the `name` parameter.
+ * @param {Boolean} [options.clone=true] By default, `discriminator()` clones the given `schema`. Set to `false` to skip cloning.
+ * @return {Function} the constructor Mongoose will use for creating instances of this discriminator model
+ * @see discriminators https://mongoosejs.com/docs/discriminators.html
+ * @api public
+ */
+
+SchemaSubdocument.prototype.discriminator = function(name, schema, options) {
+  options = options || {};
+  const value = utils.isPOJO(options) ? options.value : options;
+  const clone = typeof options.clone === 'boolean'
+    ? options.clone
+    : true;
+
+  if (schema.instanceOfSchema && clone) {
+    schema = schema.clone();
+  }
+
+  schema = discriminator(this.caster, name, schema, value, null, null, options.overwriteExisting);
+
+  this.caster.discriminators[name] = _createConstructor(schema, this.caster);
+
+  return this.caster.discriminators[name];
+};
+
+/*!
+ * ignore
+ */
+
+SchemaSubdocument.defaultOptions = {};
+
+/**
+ * Sets a default option for all Subdocument instances.
+ *
+ * #### Example:
+ *
+ *     // Make all numbers have option `min` equal to 0.
+ *     mongoose.Schema.Subdocument.set('required', true);
+ *
+ * @param {String} option The option you'd like to set the value for
+ * @param {Any} value value for option
+ * @return {void}
+ * @function set
+ * @static
+ * @api public
+ */
+
+SchemaSubdocument.set = SchemaType.set;
+
+SchemaSubdocument.setters = [];
+
+/**
+ * Attaches a getter for all Subdocument instances
+ *
+ * @param {Function} getter
+ * @return {this}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaSubdocument.get = SchemaType.get;
+
+/*!
+ * ignore
+ */
+
+SchemaSubdocument.prototype.toJSON = function toJSON() {
+  return { path: this.path, options: this.options };
+};
+
+/*!
+ * ignore
+ */
+
+SchemaSubdocument.prototype.clone = function() {
+  const schematype = new this.constructor(
+    this.schema,
+    this.path,
+    { ...this.options, _skipApplyDiscriminators: true }
+  );
+  schematype.validators = this.validators.slice();
+  if (this.requiredValidator !== undefined) {
+    schematype.requiredValidator = this.requiredValidator;
+  }
+  schematype.caster.discriminators = Object.assign({}, this.caster.discriminators);
+  schematype._appliedDiscriminators = this._appliedDiscriminators;
+  return schematype;
+};
diff --git a/backend/node_modules/mongoose/lib/schema/symbols.js b/backend/node_modules/mongoose/lib/schema/symbols.js
new file mode 100644
index 0000000..7ae0e9e
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/symbols.js
@@ -0,0 +1,5 @@
+'use strict';
+
+exports.schemaMixedSymbol = Symbol.for('mongoose:schema_mixed');
+
+exports.builtInMiddleware = Symbol.for('mongoose:built-in-middleware');
diff --git a/backend/node_modules/mongoose/lib/schema/uuid.js b/backend/node_modules/mongoose/lib/schema/uuid.js
new file mode 100644
index 0000000..0b3da55
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schema/uuid.js
@@ -0,0 +1,291 @@
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const MongooseBuffer = require('../types/buffer');
+const SchemaType = require('../schemaType');
+const CastError = SchemaType.CastError;
+const castUUID = require('../cast/uuid');
+const utils = require('../utils');
+const handleBitwiseOperator = require('./operators/bitwise');
+
+const UUID_FORMAT = castUUID.UUID_FORMAT;
+const Binary = MongooseBuffer.Binary;
+
+/**
+ * Convert binary to a uuid string
+ * @param {Buffer|Binary|String} uuidBin The value to process
+ * @returns {String} The completed uuid-string
+ * @api private
+ */
+function binaryToString(uuidBin) {
+  // i(hasezoey) dont quite know why, but "uuidBin" may sometimes also be the already processed string
+  let hex;
+  if (typeof uuidBin !== 'string' && uuidBin != null) {
+    hex = uuidBin.toString('hex');
+    const uuidStr = hex.substring(0, 8) + '-' + hex.substring(8, 8 + 4) + '-' + hex.substring(12, 12 + 4) + '-' + hex.substring(16, 16 + 4) + '-' + hex.substring(20, 20 + 12);
+    return uuidStr;
+  }
+  return uuidBin;
+}
+
+/**
+ * UUIDv1 SchemaType constructor.
+ *
+ * @param {String} key
+ * @param {Object} options
+ * @inherits SchemaType
+ * @api public
+ */
+
+function SchemaUUID(key, options) {
+  SchemaType.call(this, key, options, 'UUID');
+  this.getters.push(function(value) {
+    // For populated
+    if (value != null && value.$__ != null) {
+      return value;
+    }
+    if (Buffer.isBuffer(value)) {
+      return binaryToString(value);
+    } else if (value instanceof Binary) {
+      return binaryToString(value.buffer);
+    } else if (utils.isPOJO(value) && value.type === 'Buffer' && Array.isArray(value.data)) {
+      // Cloned buffers look like `{ type: 'Buffer', data: [5, 224, ...] }`
+      return binaryToString(Buffer.from(value.data));
+    }
+    return value;
+  });
+}
+
+/**
+ * This schema type's name, to defend against minifiers that mangle
+ * function names.
+ *
+ * @api public
+ */
+SchemaUUID.schemaName = 'UUID';
+
+SchemaUUID.defaultOptions = {};
+
+/*!
+ * Inherits from SchemaType.
+ */
+SchemaUUID.prototype = Object.create(SchemaType.prototype);
+SchemaUUID.prototype.constructor = SchemaUUID;
+
+/*!
+ * ignore
+ */
+
+SchemaUUID._cast = castUUID;
+
+/**
+ * Attaches a getter for all UUID instances.
+ *
+ * #### Example:
+ *
+ *     // Note that `v` is a string by default
+ *     mongoose.Schema.UUID.get(v => v.toUpperCase());
+ *
+ *     const Model = mongoose.model('Test', new Schema({ test: 'UUID' }));
+ *     new Model({ test: uuid.v4() }).test; // UUID with all uppercase
+ *
+ * @param {Function} getter
+ * @return {this}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaUUID.get = SchemaType.get;
+
+/**
+ * Sets a default option for all UUID instances.
+ *
+ * #### Example:
+ *
+ *     // Make all UUIDs have `required` of true by default.
+ *     mongoose.Schema.UUID.set('required', true);
+ *
+ *     const User = mongoose.model('User', new Schema({ test: mongoose.UUID }));
+ *     new User({ }).validateSync().errors.test.message; // Path `test` is required.
+ *
+ * @param {String} option The option you'd like to set the value for
+ * @param {Any} value value for option
+ * @return {undefined}
+ * @function set
+ * @static
+ * @api public
+ */
+
+SchemaUUID.set = SchemaType.set;
+
+SchemaUUID.setters = [];
+
+/**
+ * Get/set the function used to cast arbitrary values to UUIDs.
+ *
+ * #### Example:
+ *
+ *     // Make Mongoose refuse to cast UUIDs with 0 length
+ *     const original = mongoose.Schema.Types.UUID.cast();
+ *     mongoose.UUID.cast(v => {
+ *       assert.ok(typeof v === "string" && v.length > 0);
+ *       return original(v);
+ *     });
+ *
+ *     // Or disable casting entirely
+ *     mongoose.UUID.cast(false);
+ *
+ * @param {Function} [caster]
+ * @return {Function}
+ * @function get
+ * @static
+ * @api public
+ */
+
+SchemaUUID.cast = function cast(caster) {
+  if (arguments.length === 0) {
+    return this._cast;
+  }
+  if (caster === false) {
+    caster = this._defaultCaster;
+  }
+  this._cast = caster;
+
+  return this._cast;
+};
+
+/*!
+ * ignore
+ */
+
+SchemaUUID._checkRequired = v => v != null;
+
+/**
+ * Override the function the required validator uses to check whether a string
+ * passes the `required` check.
+ *
+ * @param {Function} fn
+ * @return {Function}
+ * @function checkRequired
+ * @static
+ * @api public
+ */
+
+SchemaUUID.checkRequired = SchemaType.checkRequired;
+
+/**
+ * Check if the given value satisfies a required validator.
+ *
+ * @param {Any} value
+ * @return {Boolean}
+ * @api public
+ */
+
+SchemaUUID.prototype.checkRequired = function checkRequired(value) {
+  if (Buffer.isBuffer(value)) {
+    value = binaryToString(value);
+  }
+  return value != null && UUID_FORMAT.test(value);
+};
+
+/**
+ * Casts to UUID
+ *
+ * @param {Object} value
+ * @param {Object} doc
+ * @param {Boolean} init whether this is an initialization cast
+ * @api private
+ */
+
+SchemaUUID.prototype.cast = function(value, doc, init) {
+  if (utils.isNonBuiltinObject(value) &&
+      SchemaType._isRef(this, value, doc, init)) {
+    return this._castRef(value, doc, init);
+  }
+
+  let castFn;
+  if (typeof this._castFunction === 'function') {
+    castFn = this._castFunction;
+  } else if (typeof this.constructor.cast === 'function') {
+    castFn = this.constructor.cast();
+  } else {
+    castFn = SchemaUUID.cast();
+  }
+
+  try {
+    return castFn(value);
+  } catch (error) {
+    throw new CastError(SchemaUUID.schemaName, value, this.path, error, this);
+  }
+};
+
+/*!
+ * ignore
+ */
+
+function handleSingle(val) {
+  return this.cast(val);
+}
+
+/*!
+ * ignore
+ */
+
+function handleArray(val) {
+  return val.map((m) => {
+    return this.cast(m);
+  });
+}
+
+SchemaUUID.prototype.$conditionalHandlers = {
+  ...SchemaType.prototype.$conditionalHandlers,
+  $bitsAllClear: handleBitwiseOperator,
+  $bitsAnyClear: handleBitwiseOperator,
+  $bitsAllSet: handleBitwiseOperator,
+  $bitsAnySet: handleBitwiseOperator,
+  $all: handleArray,
+  $gt: handleSingle,
+  $gte: handleSingle,
+  $in: handleArray,
+  $lt: handleSingle,
+  $lte: handleSingle,
+  $ne: handleSingle,
+  $nin: handleArray
+};
+
+/**
+ * Casts contents for queries.
+ *
+ * @param {String} $conditional
+ * @param {any} val
+ * @api private
+ */
+
+SchemaUUID.prototype.castForQuery = function($conditional, val, context) {
+  let handler;
+  if ($conditional != null) {
+    handler = this.$conditionalHandlers[$conditional];
+    if (!handler)
+      throw new Error('Can\'t use ' + $conditional + ' with UUID.');
+    return handler.call(this, val, context);
+  }
+
+  try {
+    return this.applySetters(val, context);
+  } catch (err) {
+    if (err instanceof CastError && err.path === this.path && this.$fullPath != null) {
+      err.path = this.$fullPath;
+    }
+    throw err;
+  }
+};
+
+/*!
+ * Module exports.
+ */
+
+module.exports = SchemaUUID;
diff --git a/backend/node_modules/mongoose/lib/schemaType.js b/backend/node_modules/mongoose/lib/schemaType.js
new file mode 100644
index 0000000..ed63c47
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/schemaType.js
@@ -0,0 +1,1782 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const MongooseError = require('./error/index');
+const SchemaTypeOptions = require('./options/schemaTypeOptions');
+const $exists = require('./schema/operators/exists');
+const $type = require('./schema/operators/type');
+const clone = require('./helpers/clone');
+const handleImmutable = require('./helpers/schematype/handleImmutable');
+const isAsyncFunction = require('./helpers/isAsyncFunction');
+const isSimpleValidator = require('./helpers/isSimpleValidator');
+const immediate = require('./helpers/immediate');
+const schemaTypeSymbol = require('./helpers/symbols').schemaTypeSymbol;
+const utils = require('./utils');
+const validatorErrorSymbol = require('./helpers/symbols').validatorErrorSymbol;
+const documentIsModified = require('./helpers/symbols').documentIsModified;
+
+const populateModelSymbol = require('./helpers/symbols').populateModelSymbol;
+
+const CastError = MongooseError.CastError;
+const ValidatorError = MongooseError.ValidatorError;
+
+const setOptionsForDefaults = { _skipMarkModified: true };
+
+/**
+ * SchemaType constructor. Do **not** instantiate `SchemaType` directly.
+ * Mongoose converts your schema paths into SchemaTypes automatically.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ name: String });
+ *     schema.path('name') instanceof SchemaType; // true
+ *
+ * @param {String} path
+ * @param {SchemaTypeOptions} [options] See [SchemaTypeOptions docs](https://mongoosejs.com/docs/api/schematypeoptions.html)
+ * @param {String} [instance]
+ * @api public
+ */
+
+function SchemaType(path, options, instance) {
+  this[schemaTypeSymbol] = true;
+  this.path = path;
+  this.instance = instance;
+  this.validators = [];
+  this.getters = this.constructor.hasOwnProperty('getters') ?
+    this.constructor.getters.slice() :
+    [];
+  this.setters = this.constructor.hasOwnProperty('setters') ?
+    this.constructor.setters.slice() :
+    [];
+
+  this.splitPath();
+
+  options = options || {};
+  const defaultOptions = this.constructor.defaultOptions || {};
+  const defaultOptionsKeys = Object.keys(defaultOptions);
+
+  for (const option of defaultOptionsKeys) {
+    if (option === 'validate') {
+      this.validate(defaultOptions.validate);
+    } else if (defaultOptions.hasOwnProperty(option) && !Object.prototype.hasOwnProperty.call(options, option)) {
+      options[option] = defaultOptions[option];
+    }
+  }
+
+  if (options.select == null) {
+    delete options.select;
+  }
+
+  const Options = this.OptionsConstructor || SchemaTypeOptions;
+  this.options = new Options(options);
+  this._index = null;
+
+  if (utils.hasUserDefinedProperty(this.options, 'immutable')) {
+    this.$immutable = this.options.immutable;
+
+    handleImmutable(this);
+  }
+
+  const keys = Object.keys(this.options);
+  for (const prop of keys) {
+    if (prop === 'cast') {
+      if (Array.isArray(this.options[prop])) {
+        this.castFunction.apply(this, this.options[prop]);
+      } else {
+        this.castFunction(this.options[prop]);
+      }
+      continue;
+    }
+    if (utils.hasUserDefinedProperty(this.options, prop) && typeof this[prop] === 'function') {
+      // { unique: true, index: true }
+      if (prop === 'index' && this._index) {
+        if (options.index === false) {
+          const index = this._index;
+          if (typeof index === 'object' && index != null) {
+            if (index.unique) {
+              throw new Error('Path "' + this.path + '" may not have `index` ' +
+                'set to false and `unique` set to true');
+            }
+            if (index.sparse) {
+              throw new Error('Path "' + this.path + '" may not have `index` ' +
+                'set to false and `sparse` set to true');
+            }
+          }
+
+          this._index = false;
+        }
+        continue;
+      }
+
+      const val = options[prop];
+      // Special case so we don't screw up array defaults, see gh-5780
+      if (prop === 'default') {
+        this.default(val);
+        continue;
+      }
+
+      const opts = Array.isArray(val) ? val : [val];
+
+      this[prop].apply(this, opts);
+    }
+  }
+
+  Object.defineProperty(this, '$$context', {
+    enumerable: false,
+    configurable: false,
+    writable: true,
+    value: null
+  });
+}
+
+/**
+ * The class that Mongoose uses internally to instantiate this SchemaType's `options` property.
+ * @memberOf SchemaType
+ * @instance
+ * @api private
+ */
+
+SchemaType.prototype.OptionsConstructor = SchemaTypeOptions;
+
+/**
+ * The path to this SchemaType in a Schema.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ name: String });
+ *     schema.path('name').path; // 'name'
+ *
+ * @property path
+ * @api public
+ * @memberOf SchemaType
+ */
+
+SchemaType.prototype.path;
+
+/**
+ * The validators that Mongoose should run to validate properties at this SchemaType's path.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ name: { type: String, required: true } });
+ *     schema.path('name').validators.length; // 1, the `required` validator
+ *
+ * @property validators
+ * @api public
+ * @memberOf SchemaType
+ */
+
+SchemaType.prototype.validators;
+
+/**
+ * True if this SchemaType has a required validator. False otherwise.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ name: { type: String, required: true } });
+ *     schema.path('name').isRequired; // true
+ *
+ *     schema.path('name').required(false);
+ *     schema.path('name').isRequired; // false
+ *
+ * @property isRequired
+ * @api public
+ * @memberOf SchemaType
+ */
+
+SchemaType.prototype.isRequired;
+
+/**
+ * Split the current dottet path into segments
+ *
+ * @return {String[]|undefined}
+ * @api private
+ */
+
+SchemaType.prototype.splitPath = function() {
+  if (this._presplitPath != null) {
+    return this._presplitPath;
+  }
+  if (this.path == null) {
+    return undefined;
+  }
+
+  this._presplitPath = this.path.indexOf('.') === -1 ? [this.path] : this.path.split('.');
+  return this._presplitPath;
+};
+
+/**
+ * Get/set the function used to cast arbitrary values to this type.
+ *
+ * #### Example:
+ *
+ *     // Disallow `null` for numbers, and don't try to cast any values to
+ *     // numbers, so even strings like '123' will cause a CastError.
+ *     mongoose.Number.cast(function(v) {
+ *       assert.ok(v === undefined || typeof v === 'number');
+ *       return v;
+ *     });
+ *
+ * @param {Function|false} caster Function that casts arbitrary values to this type, or throws an error if casting failed
+ * @return {Function}
+ * @static
+ * @memberOf SchemaType
+ * @function cast
+ * @api public
+ */
+
+SchemaType.cast = function cast(caster) {
+  if (arguments.length === 0) {
+    return this._cast;
+  }
+  if (caster === false) {
+    caster = v => v;
+  }
+  this._cast = caster;
+
+  return this._cast;
+};
+
+/**
+ * Get/set the function used to cast arbitrary values to this particular schematype instance.
+ * Overrides `SchemaType.cast()`.
+ *
+ * #### Example:
+ *
+ *     // Disallow `null` for numbers, and don't try to cast any values to
+ *     // numbers, so even strings like '123' will cause a CastError.
+ *     const number = new mongoose.Number('mypath', {});
+ *     number.cast(function(v) {
+ *       assert.ok(v === undefined || typeof v === 'number');
+ *       return v;
+ *     });
+ *
+ * @param {Function|false} caster Function that casts arbitrary values to this type, or throws an error if casting failed
+ * @return {Function}
+ * @memberOf SchemaType
+ * @api public
+ */
+
+SchemaType.prototype.castFunction = function castFunction(caster, message) {
+  if (arguments.length === 0) {
+    return this._castFunction;
+  }
+
+  if (caster === false) {
+    caster = this.constructor._defaultCaster || (v => v);
+  }
+  if (typeof caster === 'string') {
+    this._castErrorMessage = caster;
+    return this._castFunction;
+  }
+  if (caster != null) {
+    this._castFunction = caster;
+  }
+  if (message != null) {
+    this._castErrorMessage = message;
+  }
+
+  return this._castFunction;
+};
+
+/**
+ * The function that Mongoose calls to cast arbitrary values to this SchemaType.
+ *
+ * @param {Object} value value to cast
+ * @param {Document} doc document that triggers the casting
+ * @param {Boolean} init
+ * @api public
+ */
+
+SchemaType.prototype.cast = function cast() {
+  throw new Error('Base SchemaType class does not implement a `cast()` function');
+};
+
+/**
+ * Sets a default option for this schema type.
+ *
+ * #### Example:
+ *
+ *     // Make all strings be trimmed by default
+ *     mongoose.SchemaTypes.String.set('trim', true);
+ *
+ * @param {String} option The name of the option you'd like to set (e.g. trim, lowercase, etc...)
+ * @param {Any} value The value of the option you'd like to set.
+ * @return {void}
+ * @static
+ * @memberOf SchemaType
+ * @function set
+ * @api public
+ */
+
+SchemaType.set = function set(option, value) {
+  if (!this.hasOwnProperty('defaultOptions')) {
+    this.defaultOptions = Object.assign({}, this.defaultOptions);
+  }
+  this.defaultOptions[option] = value;
+};
+
+/**
+ * Attaches a getter for all instances of this schema type.
+ *
+ * #### Example:
+ *
+ *     // Make all numbers round down
+ *     mongoose.Number.get(function(v) { return Math.floor(v); });
+ *
+ * @param {Function} getter
+ * @return {this}
+ * @static
+ * @memberOf SchemaType
+ * @function get
+ * @api public
+ */
+
+SchemaType.get = function(getter) {
+  this.getters = this.hasOwnProperty('getters') ? this.getters : [];
+  this.getters.push(getter);
+};
+
+/**
+ * Sets a default value for this SchemaType.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ n: { type: Number, default: 10 })
+ *     const M = db.model('M', schema)
+ *     const m = new M;
+ *     console.log(m.n) // 10
+ *
+ * Defaults can be either `functions` which return the value to use as the default or the literal value itself. Either way, the value will be cast based on its schema type before being set during document creation.
+ *
+ * #### Example:
+ *
+ *     // values are cast:
+ *     const schema = new Schema({ aNumber: { type: Number, default: 4.815162342 }})
+ *     const M = db.model('M', schema)
+ *     const m = new M;
+ *     console.log(m.aNumber) // 4.815162342
+ *
+ *     // default unique objects for Mixed types:
+ *     const schema = new Schema({ mixed: Schema.Types.Mixed });
+ *     schema.path('mixed').default(function () {
+ *       return {};
+ *     });
+ *
+ *     // if we don't use a function to return object literals for Mixed defaults,
+ *     // each document will receive a reference to the same object literal creating
+ *     // a "shared" object instance:
+ *     const schema = new Schema({ mixed: Schema.Types.Mixed });
+ *     schema.path('mixed').default({});
+ *     const M = db.model('M', schema);
+ *     const m1 = new M;
+ *     m1.mixed.added = 1;
+ *     console.log(m1.mixed); // { added: 1 }
+ *     const m2 = new M;
+ *     console.log(m2.mixed); // { added: 1 }
+ *
+ * @param {Function|any} val The default value to set
+ * @return {Any|undefined} Returns the set default value.
+ * @api public
+ */
+
+SchemaType.prototype.default = function(val) {
+  if (arguments.length === 1) {
+    if (val === void 0) {
+      this.defaultValue = void 0;
+      return void 0;
+    }
+
+    if (val != null && val.instanceOfSchema) {
+      throw new MongooseError('Cannot set default value of path `' + this.path +
+        '` to a mongoose Schema instance.');
+    }
+
+    this.defaultValue = val;
+    return this.defaultValue;
+  } else if (arguments.length > 1) {
+    this.defaultValue = [...arguments];
+  }
+  return this.defaultValue;
+};
+
+/**
+ * Declares the index options for this schematype.
+ *
+ * #### Example:
+ *
+ *     const s = new Schema({ name: { type: String, index: true })
+ *     const s = new Schema({ name: { type: String, index: -1 })
+ *     const s = new Schema({ loc: { type: [Number], index: 'hashed' })
+ *     const s = new Schema({ loc: { type: [Number], index: '2d', sparse: true })
+ *     const s = new Schema({ loc: { type: [Number], index: { type: '2dsphere', sparse: true }})
+ *     const s = new Schema({ date: { type: Date, index: { unique: true, expires: '1d' }})
+ *     s.path('my.path').index(true);
+ *     s.path('my.date').index({ expires: 60 });
+ *     s.path('my.path').index({ unique: true, sparse: true });
+ *
+ * #### Note:
+ *
+ * _Indexes are created [in the background](https://www.mongodb.com/docs/manual/core/index-creation/#index-creation-background)
+ * by default. If `background` is set to `false`, MongoDB will not execute any
+ * read/write operations you send until the index build.
+ * Specify `background: false` to override Mongoose's default._
+ *
+ * @param {Object|Boolean|String|Number} options
+ * @return {SchemaType} this
+ * @api public
+ */
+
+SchemaType.prototype.index = function(options) {
+  this._index = options;
+  utils.expires(this._index);
+  return this;
+};
+
+/**
+ * Declares an unique index.
+ *
+ * #### Example:
+ *
+ *     const s = new Schema({ name: { type: String, unique: true } });
+ *     s.path('name').index({ unique: true });
+ *
+ * _NOTE: violating the constraint returns an `E11000` error from MongoDB when saving, not a Mongoose validation error._
+ *
+ * You can optionally specify an error message to replace MongoDB's default `E11000 duplicate key error` message.
+ * The following will throw a "Email must be unique" error if `save()`, `updateOne()`, `updateMany()`, `replaceOne()`,
+ * `findOneAndUpdate()`, or `findOneAndReplace()` throws a duplicate key error:
+ *
+ * ```javascript
+ * new Schema({
+ *   email: {
+ *     type: String,
+ *     unique: [true, 'Email must be unique']
+ *   }
+ * });
+ * ```
+ *
+ * Note that the above syntax does **not** work for `bulkWrite()` or `insertMany()`. `bulkWrite()` and `insertMany()`
+ * will still throw MongoDB's default `E11000 duplicate key error` message.
+ *
+ * @param {Boolean} value
+ * @param {String} [message]
+ * @return {SchemaType} this
+ * @api public
+ */
+
+SchemaType.prototype.unique = function unique(value, message) {
+  if (this._index === false) {
+    if (!value) {
+      return;
+    }
+    throw new Error('Path "' + this.path + '" may not have `index` set to ' +
+      'false and `unique` set to true');
+  }
+
+  if (!this.options.hasOwnProperty('index') && value === false) {
+    return this;
+  }
+
+  if (this._index == null || this._index === true) {
+    this._index = {};
+  } else if (typeof this._index === 'string') {
+    this._index = { type: this._index };
+  }
+
+  this._index.unique = !!value;
+  if (typeof message === 'string') {
+    this._duplicateKeyErrorMessage = message;
+  }
+  return this;
+};
+
+/**
+ * Declares a full text index.
+ *
+ * ### Example:
+ *
+ *      const s = new Schema({ name : { type: String, text : true } })
+ *      s.path('name').index({ text : true });
+ *
+ * @param {Boolean} bool
+ * @return {SchemaType} this
+ * @api public
+ */
+
+SchemaType.prototype.text = function(bool) {
+  if (this._index === false) {
+    if (!bool) {
+      return this;
+    }
+    throw new Error('Path "' + this.path + '" may not have `index` set to ' +
+      'false and `text` set to true');
+  }
+
+  if (!this.options.hasOwnProperty('index') && bool === false) {
+    return this;
+  }
+
+  if (this._index === null || this._index === undefined ||
+    typeof this._index === 'boolean') {
+    this._index = {};
+  } else if (typeof this._index === 'string') {
+    this._index = { type: this._index };
+  }
+
+  this._index.text = bool;
+  return this;
+};
+
+/**
+ * Declares a sparse index.
+ *
+ * #### Example:
+ *
+ *     const s = new Schema({ name: { type: String, sparse: true } });
+ *     s.path('name').index({ sparse: true });
+ *
+ * @param {Boolean} bool
+ * @return {SchemaType} this
+ * @api public
+ */
+
+SchemaType.prototype.sparse = function(bool) {
+  if (this._index === false) {
+    if (!bool) {
+      return this;
+    }
+    throw new Error('Path "' + this.path + '" may not have `index` set to ' +
+      'false and `sparse` set to true');
+  }
+
+  if (!this.options.hasOwnProperty('index') && bool === false) {
+    return this;
+  }
+
+  if (this._index == null || typeof this._index === 'boolean') {
+    this._index = {};
+  } else if (typeof this._index === 'string') {
+    this._index = { type: this._index };
+  }
+
+  this._index.sparse = bool;
+  return this;
+};
+
+/**
+ * Defines this path as immutable. Mongoose prevents you from changing
+ * immutable paths unless the parent document has [`isNew: true`](https://mongoosejs.com/docs/api/document.html#Document.prototype.isNew()).
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({
+ *       name: { type: String, immutable: true },
+ *       age: Number
+ *     });
+ *     const Model = mongoose.model('Test', schema);
+ *
+ *     await Model.create({ name: 'test' });
+ *     const doc = await Model.findOne();
+ *
+ *     doc.isNew; // false
+ *     doc.name = 'new name';
+ *     doc.name; // 'test', because `name` is immutable
+ *
+ * Mongoose also prevents changing immutable properties using `updateOne()`
+ * and `updateMany()` based on [strict mode](https://mongoosejs.com/docs/guide.html#strict).
+ *
+ * #### Example:
+ *
+ *     // Mongoose will strip out the `name` update, because `name` is immutable
+ *     Model.updateOne({}, { $set: { name: 'test2' }, $inc: { age: 1 } });
+ *
+ *     // If `strict` is set to 'throw', Mongoose will throw an error if you
+ *     // update `name`
+ *     const err = await Model.updateOne({}, { name: 'test2' }, { strict: 'throw' }).
+ *       then(() => null, err => err);
+ *     err.name; // StrictModeError
+ *
+ *     // If `strict` is `false`, Mongoose allows updating `name` even though
+ *     // the property is immutable.
+ *     Model.updateOne({}, { name: 'test2' }, { strict: false });
+ *
+ * @param {Boolean} bool
+ * @return {SchemaType} this
+ * @see isNew https://mongoosejs.com/docs/api/document.html#Document.prototype.isNew()
+ * @api public
+ */
+
+SchemaType.prototype.immutable = function(bool) {
+  this.$immutable = bool;
+  handleImmutable(this);
+
+  return this;
+};
+
+/**
+ * Defines a custom function for transforming this path when converting a document to JSON.
+ *
+ * Mongoose calls this function with one parameter: the current `value` of the path. Mongoose
+ * then uses the return value in the JSON output.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({
+ *       date: { type: Date, transform: v => v.getFullYear() }
+ *     });
+ *     const Model = mongoose.model('Test', schema);
+ *
+ *     await Model.create({ date: new Date('2016-06-01') });
+ *     const doc = await Model.findOne();
+ *
+ *     doc.date instanceof Date; // true
+ *
+ *     doc.toJSON().date; // 2016 as a number
+ *     JSON.stringify(doc); // '{"_id":...,"date":2016}'
+ *
+ * @param {Function} fn
+ * @return {SchemaType} this
+ * @api public
+ */
+
+SchemaType.prototype.transform = function(fn) {
+  this.options.transform = fn;
+
+  return this;
+};
+
+/**
+ * Adds a setter to this schematype.
+ *
+ * #### Example:
+ *
+ *     function capitalize (val) {
+ *       if (typeof val !== 'string') val = '';
+ *       return val.charAt(0).toUpperCase() + val.substring(1);
+ *     }
+ *
+ *     // defining within the schema
+ *     const s = new Schema({ name: { type: String, set: capitalize }});
+ *
+ *     // or with the SchemaType
+ *     const s = new Schema({ name: String })
+ *     s.path('name').set(capitalize);
+ *
+ * Setters allow you to transform the data before it gets to the raw mongodb
+ * document or query.
+ *
+ * Suppose you are implementing user registration for a website. Users provide
+ * an email and password, which gets saved to mongodb. The email is a string
+ * that you will want to normalize to lower case, in order to avoid one email
+ * having more than one account -- e.g., otherwise, avenue@q.com can be registered for 2 accounts via avenue@q.com and AvEnUe@Q.CoM.
+ *
+ * You can set up email lower case normalization easily via a Mongoose setter.
+ *
+ *     function toLower(v) {
+ *       return v.toLowerCase();
+ *     }
+ *
+ *     const UserSchema = new Schema({
+ *       email: { type: String, set: toLower }
+ *     });
+ *
+ *     const User = db.model('User', UserSchema);
+ *
+ *     const user = new User({email: 'AVENUE@Q.COM'});
+ *     console.log(user.email); // 'avenue@q.com'
+ *
+ *     // or
+ *     const user = new User();
+ *     user.email = 'Avenue@Q.com';
+ *     console.log(user.email); // 'avenue@q.com'
+ *     User.updateOne({ _id: _id }, { $set: { email: 'AVENUE@Q.COM' } }); // update to 'avenue@q.com'
+ *
+ * As you can see above, setters allow you to transform the data before it
+ * stored in MongoDB, or before executing a query.
+ *
+ * _NOTE: we could have also just used the built-in `lowercase: true` SchemaType option instead of defining our own function._
+ *
+ *     new Schema({ email: { type: String, lowercase: true }})
+ *
+ * Setters are also passed a second argument, the schematype on which the setter was defined. This allows for tailored behavior based on options passed in the schema.
+ *
+ *     function inspector (val, priorValue, schematype) {
+ *       if (schematype.options.required) {
+ *         return schematype.path + ' is required';
+ *       } else {
+ *         return val;
+ *       }
+ *     }
+ *
+ *     const VirusSchema = new Schema({
+ *       name: { type: String, required: true, set: inspector },
+ *       taxonomy: { type: String, set: inspector }
+ *     })
+ *
+ *     const Virus = db.model('Virus', VirusSchema);
+ *     const v = new Virus({ name: 'Parvoviridae', taxonomy: 'Parvovirinae' });
+ *
+ *     console.log(v.name);     // name is required
+ *     console.log(v.taxonomy); // Parvovirinae
+ *
+ * You can also use setters to modify other properties on the document. If
+ * you're setting a property `name` on a document, the setter will run with
+ * `this` as the document. Be careful, in mongoose 5 setters will also run
+ * when querying by `name` with `this` as the query.
+ *
+ *     const nameSchema = new Schema({ name: String, keywords: [String] });
+ *     nameSchema.path('name').set(function(v) {
+ *       // Need to check if `this` is a document, because in mongoose 5
+ *       // setters will also run on queries, in which case `this` will be a
+ *       // mongoose query object.
+ *       if (this instanceof Document && v != null) {
+ *         this.keywords = v.split(' ');
+ *       }
+ *       return v;
+ *     });
+ *
+ * @param {Function} fn
+ * @return {SchemaType} this
+ * @api public
+ */
+
+SchemaType.prototype.set = function(fn) {
+  if (typeof fn !== 'function') {
+    throw new TypeError('A setter must be a function.');
+  }
+  this.setters.push(fn);
+  return this;
+};
+
+/**
+ * Adds a getter to this schematype.
+ *
+ * #### Example:
+ *
+ *     function dob (val) {
+ *       if (!val) return val;
+ *       return (val.getMonth() + 1) + "/" + val.getDate() + "/" + val.getFullYear();
+ *     }
+ *
+ *     // defining within the schema
+ *     const s = new Schema({ born: { type: Date, get: dob })
+ *
+ *     // or by retreiving its SchemaType
+ *     const s = new Schema({ born: Date })
+ *     s.path('born').get(dob)
+ *
+ * Getters allow you to transform the representation of the data as it travels from the raw mongodb document to the value that you see.
+ *
+ * Suppose you are storing credit card numbers and you want to hide everything except the last 4 digits to the mongoose user. You can do so by defining a getter in the following way:
+ *
+ *     function obfuscate (cc) {
+ *       return '****-****-****-' + cc.slice(cc.length-4, cc.length);
+ *     }
+ *
+ *     const AccountSchema = new Schema({
+ *       creditCardNumber: { type: String, get: obfuscate }
+ *     });
+ *
+ *     const Account = db.model('Account', AccountSchema);
+ *
+ *     Account.findById(id, function (err, found) {
+ *       console.log(found.creditCardNumber); // '****-****-****-1234'
+ *     });
+ *
+ * Getters are also passed a second argument, the schematype on which the getter was defined. This allows for tailored behavior based on options passed in the schema.
+ *
+ *     function inspector (val, priorValue, schematype) {
+ *       if (schematype.options.required) {
+ *         return schematype.path + ' is required';
+ *       } else {
+ *         return schematype.path + ' is not';
+ *       }
+ *     }
+ *
+ *     const VirusSchema = new Schema({
+ *       name: { type: String, required: true, get: inspector },
+ *       taxonomy: { type: String, get: inspector }
+ *     })
+ *
+ *     const Virus = db.model('Virus', VirusSchema);
+ *
+ *     Virus.findById(id, function (err, virus) {
+ *       console.log(virus.name);     // name is required
+ *       console.log(virus.taxonomy); // taxonomy is not
+ *     })
+ *
+ * @param {Function} fn
+ * @return {SchemaType} this
+ * @api public
+ */
+
+SchemaType.prototype.get = function(fn) {
+  if (typeof fn !== 'function') {
+    throw new TypeError('A getter must be a function.');
+  }
+  this.getters.push(fn);
+  return this;
+};
+
+/**
+ * Adds multiple validators for this document path.
+ * Calls `validate()` for every element in validators.
+ *
+ * @param {Array<RegExp|Function|Object>} validators
+ * @returns this
+ */
+
+SchemaType.prototype.validateAll = function(validators) {
+  for (let i = 0; i < validators.length; i++) {
+    this.validate(validators[i]);
+  }
+  return this;
+};
+
+/**
+ * Adds validator(s) for this document path.
+ *
+ * Validators always receive the value to validate as their first argument and
+ * must return `Boolean`. Returning `false` or throwing an error means
+ * validation failed.
+ *
+ * The error message argument is optional. If not passed, the [default generic error message template](https://mongoosejs.com/docs/api/error.html#Error.messages) will be used.
+ *
+ * #### Example:
+ *
+ *     // make sure every value is equal to "something"
+ *     function validator (val) {
+ *       return val === 'something';
+ *     }
+ *     new Schema({ name: { type: String, validate: validator }});
+ *
+ *     // with a custom error message
+ *
+ *     const custom = [validator, 'Uh oh, {PATH} does not equal "something".']
+ *     new Schema({ name: { type: String, validate: custom }});
+ *
+ *     // adding many validators at a time
+ *
+ *     const many = [
+ *         { validator: validator, message: 'uh oh' }
+ *       , { validator: anotherValidator, message: 'failed' }
+ *     ]
+ *     new Schema({ name: { type: String, validate: many }});
+ *
+ *     // or utilizing SchemaType methods directly:
+ *
+ *     const schema = new Schema({ name: 'string' });
+ *     schema.path('name').validate(validator, 'validation of `{PATH}` failed with value `{VALUE}`');
+ *
+ * #### Error message templates:
+ *
+ * Below is a list of supported template keywords:
+ *
+ * - PATH: The schema path where the error is being triggered.
+ * - VALUE: The value assigned to the PATH that is triggering the error.
+ * - KIND: The validation property that triggered the error i.e. required.
+ * - REASON: The error object that caused this error if there was one.
+ *
+ * If Mongoose's built-in error message templating isn't enough, Mongoose
+ * supports setting the `message` property to a function.
+ *
+ *     schema.path('name').validate({
+ *       validator: function(v) { return v.length > 5; },
+ *       // `errors['name']` will be "name must have length 5, got 'foo'"
+ *       message: function(props) {
+ *         return `${props.path} must have length 5, got '${props.value}'`;
+ *       }
+ *     });
+ *
+ * To bypass Mongoose's error messages and just copy the error message that
+ * the validator throws, do this:
+ *
+ *     schema.path('name').validate({
+ *       validator: function() { throw new Error('Oops!'); },
+ *       // `errors['name'].message` will be "Oops!"
+ *       message: function(props) { return props.reason.message; }
+ *     });
+ *
+ * #### Asynchronous validation:
+ *
+ * Mongoose supports validators that return a promise. A validator that returns
+ * a promise is called an _async validator_. Async validators run in
+ * parallel, and `validate()` will wait until all async validators have settled.
+ *
+ *     schema.path('name').validate({
+ *       validator: function (value) {
+ *         return new Promise(function (resolve, reject) {
+ *           resolve(false); // validation failed
+ *         });
+ *       }
+ *     });
+ *
+ * You might use asynchronous validators to retreive other documents from the database to validate against or to meet other I/O bound validation needs.
+ *
+ * Validation occurs `pre('save')` or whenever you manually execute [document#validate](https://mongoosejs.com/docs/api/document.html#Document.prototype.validate()).
+ *
+ * If validation fails during `pre('save')` and no callback was passed to receive the error, an `error` event will be emitted on your Models associated db [connection](https://mongoosejs.com/docs/api/connection.html#Connection()), passing the validation error object along.
+ *
+ *     const conn = mongoose.createConnection(..);
+ *     conn.on('error', handleError);
+ *
+ *     const Product = conn.model('Product', yourSchema);
+ *     const dvd = new Product(..);
+ *     dvd.save(); // emits error on the `conn` above
+ *
+ * If you want to handle these errors at the Model level, add an `error`
+ * listener to your Model as shown below.
+ *
+ *     // registering an error listener on the Model lets us handle errors more locally
+ *     Product.on('error', handleError);
+ *
+ * @param {RegExp|Function|Object} obj validator function, or hash describing options
+ * @param {Function} [obj.validator] validator function. If the validator function returns `undefined` or a truthy value, validation succeeds. If it returns [falsy](https://masteringjs.io/tutorials/fundamentals/falsy) (except `undefined`) or throws an error, validation fails.
+ * @param {String|Function} [obj.message] optional error message. If function, should return the error message as a string
+ * @param {Boolean} [obj.propsParameter=false] If true, Mongoose will pass the validator properties object (with the `validator` function, `message`, etc.) as the 2nd arg to the validator function. This is disabled by default because many validators [rely on positional args](https://github.com/chriso/validator.js#validators), so turning this on may cause unpredictable behavior in external validators.
+ * @param {String|Function} [errorMsg] optional error message. If function, should return the error message as a string
+ * @param {String} [type] optional validator type
+ * @return {SchemaType} this
+ * @api public
+ */
+
+SchemaType.prototype.validate = function(obj, message, type) {
+  if (typeof obj === 'function' || obj && utils.getFunctionName(obj.constructor) === 'RegExp') {
+    let properties;
+    if (typeof message === 'function') {
+      properties = { validator: obj, message: message };
+      properties.type = type || 'user defined';
+    } else if (message instanceof Object && !type) {
+      properties = isSimpleValidator(message) ? Object.assign({}, message) : clone(message);
+      if (!properties.message) {
+        properties.message = properties.msg;
+      }
+      properties.validator = obj;
+      properties.type = properties.type || 'user defined';
+    } else {
+      if (message == null) {
+        message = MongooseError.messages.general.default;
+      }
+      if (!type) {
+        type = 'user defined';
+      }
+      properties = { message: message, type: type, validator: obj };
+    }
+
+    this.validators.push(properties);
+    return this;
+  }
+
+  let i;
+  let length;
+  let arg;
+
+  for (i = 0, length = arguments.length; i < length; i++) {
+    arg = arguments[i];
+    if (!utils.isPOJO(arg)) {
+      const msg = 'Invalid validator. Received (' + typeof arg + ') '
+        + arg
+        + '. See https://mongoosejs.com/docs/api/schematype.html#SchemaType.prototype.validate()';
+
+      throw new Error(msg);
+    }
+    this.validate(arg.validator, arg);
+  }
+
+  return this;
+};
+
+/**
+ * Adds a required validator to this SchemaType. The validator gets added
+ * to the front of this SchemaType's validators array using `unshift()`.
+ *
+ * #### Example:
+ *
+ *     const s = new Schema({ born: { type: Date, required: true })
+ *
+ *     // or with custom error message
+ *
+ *     const s = new Schema({ born: { type: Date, required: '{PATH} is required!' })
+ *
+ *     // or with a function
+ *
+ *     const s = new Schema({
+ *       userId: ObjectId,
+ *       username: {
+ *         type: String,
+ *         required: function() { return this.userId != null; }
+ *       }
+ *     })
+ *
+ *     // or with a function and a custom message
+ *     const s = new Schema({
+ *       userId: ObjectId,
+ *       username: {
+ *         type: String,
+ *         required: [
+ *           function() { return this.userId != null; },
+ *           'username is required if id is specified'
+ *         ]
+ *       }
+ *     })
+ *
+ *     // or through the path API
+ *
+ *     s.path('name').required(true);
+ *
+ *     // with custom error messaging
+ *
+ *     s.path('name').required(true, 'grrr :( ');
+ *
+ *     // or make a path conditionally required based on a function
+ *     const isOver18 = function() { return this.age >= 18; };
+ *     s.path('voterRegistrationId').required(isOver18);
+ *
+ * The required validator uses the SchemaType's `checkRequired` function to
+ * determine whether a given value satisfies the required validator. By default,
+ * a value satisfies the required validator if `val != null` (that is, if
+ * the value is not null nor undefined). However, most built-in mongoose schema
+ * types override the default `checkRequired` function:
+ *
+ * @param {Boolean|Function|Object} required enable/disable the validator, or function that returns required boolean, or options object
+ * @param {Boolean|Function} [options.isRequired] enable/disable the validator, or function that returns required boolean
+ * @param {Function} [options.ErrorConstructor] custom error constructor. The constructor receives 1 parameter, an object containing the validator properties.
+ * @param {String} [message] optional custom error message
+ * @return {SchemaType} this
+ * @see Customized Error Messages https://mongoosejs.com/docs/api/error.html#Error.messages
+ * @see SchemaArray#checkRequired https://mongoosejs.com/docs/api/schemaarray.html#SchemaArray.prototype.checkRequired()
+ * @see SchemaBoolean#checkRequired https://mongoosejs.com/docs/api/schemaboolean.html#SchemaBoolean.prototype.checkRequired()
+ * @see SchemaBuffer#checkRequired https://mongoosejs.com/docs/api/schemabuffer.html#SchemaBuffer.prototype.checkRequired()
+ * @see SchemaNumber#checkRequired https://mongoosejs.com/docs/api/schemanumber.html#SchemaNumber.prototype.checkRequired()
+ * @see SchemaObjectId#checkRequired https://mongoosejs.com/docs/api/schemaobjectid.html#ObjectId.prototype.checkRequired()
+ * @see SchemaString#checkRequired https://mongoosejs.com/docs/api/schemastring.html#SchemaString.prototype.checkRequired()
+ * @api public
+ */
+
+SchemaType.prototype.required = function(required, message) {
+  let customOptions = {};
+
+  if (arguments.length > 0 && required == null) {
+    this.validators = this.validators.filter(function(v) {
+      return v.validator !== this.requiredValidator;
+    }, this);
+
+    this.isRequired = false;
+    delete this.originalRequiredValue;
+    return this;
+  }
+
+  if (typeof required === 'object') {
+    customOptions = required;
+    message = customOptions.message || message;
+    required = required.isRequired;
+  }
+
+  if (required === false) {
+    this.validators = this.validators.filter(function(v) {
+      return v.validator !== this.requiredValidator;
+    }, this);
+
+    this.isRequired = false;
+    delete this.originalRequiredValue;
+    return this;
+  }
+
+  const _this = this;
+  this.isRequired = true;
+
+  this.requiredValidator = function(v) {
+    const cachedRequired = this && this.$__ && this.$__.cachedRequired;
+
+    // no validation when this path wasn't selected in the query.
+    if (cachedRequired != null && !this.$__isSelected(_this.path) && !this[documentIsModified](_this.path)) {
+      return true;
+    }
+
+    // `$cachedRequired` gets set in `_evaluateRequiredFunctions()` so we
+    // don't call required functions multiple times in one validate call
+    // See gh-6801
+    if (cachedRequired != null && _this.path in cachedRequired) {
+      const res = cachedRequired[_this.path] ?
+        _this.checkRequired(v, this) :
+        true;
+      delete cachedRequired[_this.path];
+      return res;
+    } else if (typeof required === 'function') {
+      return required.apply(this) ? _this.checkRequired(v, this) : true;
+    }
+
+    return _this.checkRequired(v, this);
+  };
+  this.originalRequiredValue = required;
+
+  if (typeof required === 'string') {
+    message = required;
+    required = undefined;
+  }
+
+  const msg = message || MongooseError.messages.general.required;
+  this.validators.unshift(Object.assign({}, customOptions, {
+    validator: this.requiredValidator,
+    message: msg,
+    type: 'required'
+  }));
+
+  return this;
+};
+
+/**
+ * Set the model that this path refers to. This is the option that [populate](https://mongoosejs.com/docs/populate.html)
+ * looks at to determine the foreign collection it should query.
+ *
+ * #### Example:
+ *
+ *     const userSchema = new Schema({ name: String });
+ *     const User = mongoose.model('User', userSchema);
+ *
+ *     const postSchema = new Schema({ user: mongoose.ObjectId });
+ *     postSchema.path('user').ref('User'); // Can set ref to a model name
+ *     postSchema.path('user').ref(User); // Or a model class
+ *     postSchema.path('user').ref(() => 'User'); // Or a function that returns the model name
+ *     postSchema.path('user').ref(() => User); // Or a function that returns the model class
+ *
+ *     // Or you can just declare the `ref` inline in your schema
+ *     const postSchema2 = new Schema({
+ *       user: { type: mongoose.ObjectId, ref: User }
+ *     });
+ *
+ * @param {String|Model|Function} ref either a model name, a [Model](https://mongoosejs.com/docs/models.html), or a function that returns a model name or model.
+ * @return {SchemaType} this
+ * @api public
+ */
+
+SchemaType.prototype.ref = function(ref) {
+  this.options.ref = ref;
+  return this;
+};
+
+/**
+ * Gets the default value
+ *
+ * @param {Object} scope the scope which callback are executed
+ * @param {Boolean} init
+ * @return {Any} The Stored default value.
+ * @api private
+ */
+
+SchemaType.prototype.getDefault = function(scope, init, options) {
+  let ret;
+  if (typeof this.defaultValue === 'function') {
+    if (
+      this.defaultValue === Date.now ||
+      this.defaultValue === Array ||
+      this.defaultValue.name.toLowerCase() === 'objectid'
+    ) {
+      ret = this.defaultValue.call(scope);
+    } else {
+      ret = this.defaultValue.call(scope, scope);
+    }
+  } else {
+    ret = this.defaultValue;
+  }
+
+  if (ret !== null && ret !== undefined) {
+    if (typeof ret === 'object' && (!this.options || !this.options.shared)) {
+      ret = clone(ret);
+    }
+
+    if (options && options.skipCast) {
+      return this._applySetters(ret, scope);
+    }
+
+    const casted = this.applySetters(ret, scope, init, undefined, setOptionsForDefaults);
+    if (casted && !Array.isArray(casted) && casted.$isSingleNested) {
+      casted.$__parent = scope;
+    }
+    return casted;
+  }
+  return ret;
+};
+
+/**
+ * Applies setters without casting
+ *
+ * @param {Any} value
+ * @param {Any} scope
+ * @param {Boolean} init
+ * @param {Any} priorVal
+ * @param {Object} [options]
+ * @instance
+ * @api private
+ */
+
+SchemaType.prototype._applySetters = function(value, scope, init, priorVal, options) {
+  let v = value;
+  if (init) {
+    return v;
+  }
+  const setters = this.setters;
+
+  for (let i = setters.length - 1; i >= 0; i--) {
+    v = setters[i].call(scope, v, priorVal, this, options);
+  }
+
+  return v;
+};
+
+/*!
+ * ignore
+ */
+
+SchemaType.prototype._castNullish = function _castNullish(v) {
+  return v;
+};
+
+/**
+ * Applies setters
+ *
+ * @param {Object} value
+ * @param {Object} scope
+ * @param {Boolean} init
+ * @return {Any}
+ * @api private
+ */
+
+SchemaType.prototype.applySetters = function(value, scope, init, priorVal, options) {
+  let v = this._applySetters(value, scope, init, priorVal, options);
+  if (v == null) {
+    return this._castNullish(v);
+  }
+  // do not cast until all setters are applied #665
+  v = this.cast(v, scope, init, priorVal, options);
+
+  return v;
+};
+
+/**
+ * Applies getters to a value
+ *
+ * @param {Object} value
+ * @param {Object} scope
+ * @return {Any}
+ * @api private
+ */
+
+SchemaType.prototype.applyGetters = function(value, scope) {
+  let v = value;
+  const getters = this.getters;
+  const len = getters.length;
+
+  if (len === 0) {
+    return v;
+  }
+
+  for (let i = 0; i < len; ++i) {
+    v = getters[i].call(scope, v, this);
+  }
+
+  return v;
+};
+
+/**
+ * Sets default `select()` behavior for this path.
+ *
+ * Set to `true` if this path should always be included in the results, `false` if it should be excluded by default. This setting can be overridden at the query level.
+ *
+ * #### Example:
+ *
+ *     T = db.model('T', new Schema({ x: { type: String, select: true }}));
+ *     T.find(..); // field x will always be selected ..
+ *     // .. unless overridden;
+ *     T.find().select('-x').exec(callback);
+ *
+ * @param {Boolean} val
+ * @return {SchemaType} this
+ * @api public
+ */
+
+SchemaType.prototype.select = function select(val) {
+  this.selected = !!val;
+  return this;
+};
+
+/**
+ * Performs a validation of `value` using the validators declared for this SchemaType.
+ *
+ * @param {Any} value
+ * @param {Function} callback
+ * @param {Object} scope
+ * @param {Object} [options]
+ * @param {String} [options.path]
+ * @return {Any} If no validators, returns the output from calling `fn`, otherwise no return
+ * @api public
+ */
+
+SchemaType.prototype.doValidate = function(value, fn, scope, options) {
+  let err = false;
+  const path = this.path;
+  if (typeof fn !== 'function') {
+    throw new TypeError(`Must pass callback function to doValidate(), got ${typeof fn}`);
+  }
+
+  // Avoid non-object `validators`
+  const validators = this.validators.
+    filter(v => typeof v === 'object' && v !== null);
+
+  let count = validators.length;
+
+  if (!count) {
+    return fn(null);
+  }
+
+  for (let i = 0, len = validators.length; i < len; ++i) {
+    if (err) {
+      break;
+    }
+
+    const v = validators[i];
+    const validator = v.validator;
+    let ok;
+
+    const validatorProperties = isSimpleValidator(v) ? Object.assign({}, v) : clone(v);
+    validatorProperties.path = options && options.path ? options.path : path;
+    validatorProperties.fullPath = this.$fullPath;
+    validatorProperties.value = value;
+
+    if (validator instanceof RegExp) {
+      validate(validator.test(value), validatorProperties, scope);
+      continue;
+    }
+
+    if (typeof validator !== 'function') {
+      continue;
+    }
+
+    if (value === undefined && validator !== this.requiredValidator) {
+      validate(true, validatorProperties, scope);
+      continue;
+    }
+
+    try {
+      if (validatorProperties.propsParameter) {
+        ok = validator.call(scope, value, validatorProperties);
+      } else {
+        ok = validator.call(scope, value);
+      }
+    } catch (error) {
+      ok = false;
+      validatorProperties.reason = error;
+      if (error.message) {
+        validatorProperties.message = error.message;
+      }
+    }
+
+    if (ok != null && typeof ok.then === 'function') {
+      ok.then(
+        function(ok) { validate(ok, validatorProperties, scope); },
+        function(error) {
+          validatorProperties.reason = error;
+          validatorProperties.message = error.message;
+          ok = false;
+          validate(ok, validatorProperties, scope);
+        });
+    } else {
+      validate(ok, validatorProperties, scope);
+    }
+  }
+
+  function validate(ok, validatorProperties, scope) {
+    if (err) {
+      return;
+    }
+    if (ok === undefined || ok) {
+      if (--count <= 0) {
+        immediate(function() {
+          fn(null);
+        });
+      }
+    } else {
+      const ErrorConstructor = validatorProperties.ErrorConstructor || ValidatorError;
+      err = new ErrorConstructor(validatorProperties, scope);
+      err[validatorErrorSymbol] = true;
+      immediate(function() {
+        fn(err);
+      });
+    }
+  }
+};
+
+
+function _validate(ok, validatorProperties) {
+  if (ok !== undefined && !ok) {
+    const ErrorConstructor = validatorProperties.ErrorConstructor || ValidatorError;
+    const err = new ErrorConstructor(validatorProperties);
+    err[validatorErrorSymbol] = true;
+    return err;
+  }
+}
+
+/**
+ * Performs a validation of `value` using the validators declared for this SchemaType.
+ *
+ * #### Note:
+ *
+ * This method ignores the asynchronous validators.
+ *
+ * @param {Any} value
+ * @param {Object} scope
+ * @param {Object} [options]
+ * @param {Object} [options.path]
+ * @return {MongooseError|null}
+ * @api private
+ */
+
+SchemaType.prototype.doValidateSync = function(value, scope, options) {
+  const path = this.path;
+  const count = this.validators.length;
+
+  if (!count) {
+    return null;
+  }
+
+  let validators = this.validators;
+  if (value === void 0) {
+    if (this.validators.length !== 0 && this.validators[0].type === 'required') {
+      validators = [this.validators[0]];
+    } else {
+      return null;
+    }
+  }
+
+  let err = null;
+  let i = 0;
+  const len = validators.length;
+  for (i = 0; i < len; ++i) {
+    const v = validators[i];
+
+    if (v === null || typeof v !== 'object') {
+      continue;
+    }
+
+    const validator = v.validator;
+    const validatorProperties = isSimpleValidator(v) ? Object.assign({}, v) : clone(v);
+    validatorProperties.path = options && options.path ? options.path : path;
+    validatorProperties.fullPath = this.$fullPath;
+    validatorProperties.value = value;
+    let ok = false;
+
+    // Skip any explicit async validators. Validators that return a promise
+    // will still run, but won't trigger any errors.
+    if (isAsyncFunction(validator)) {
+      continue;
+    }
+
+    if (validator instanceof RegExp) {
+      err = _validate(validator.test(value), validatorProperties);
+      continue;
+    }
+
+    if (typeof validator !== 'function') {
+      continue;
+    }
+
+    try {
+      if (validatorProperties.propsParameter) {
+        ok = validator.call(scope, value, validatorProperties);
+      } else {
+        ok = validator.call(scope, value);
+      }
+    } catch (error) {
+      ok = false;
+      validatorProperties.reason = error;
+    }
+
+    // Skip any validators that return a promise, we can't handle those
+    // synchronously
+    if (ok != null && typeof ok.then === 'function') {
+      continue;
+    }
+    err = _validate(ok, validatorProperties);
+    if (err) {
+      break;
+    }
+  }
+
+  return err;
+};
+
+/**
+ * Determines if value is a valid Reference.
+ *
+ * @param {SchemaType} self
+ * @param {Object} value
+ * @param {Document} doc
+ * @param {Boolean} init
+ * @return {Boolean}
+ * @api private
+ */
+
+SchemaType._isRef = function(self, value, doc, init) {
+  // fast path
+  let ref = init && self.options && (self.options.ref || self.options.refPath);
+
+  if (!ref && doc && doc.$__ != null) {
+    // checks for
+    // - this populated with adhoc model and no ref was set in schema OR
+    // - setting / pushing values after population
+    const path = doc.$__fullPath(self.path, true);
+
+    const owner = doc.ownerDocument();
+    ref = (path != null && owner.$populated(path)) || doc.$populated(self.path);
+  }
+
+  if (ref) {
+    if (value == null) {
+      return true;
+    }
+    if (!Buffer.isBuffer(value) && // buffers are objects too
+      value._bsontype !== 'Binary' // raw binary value from the db
+      && utils.isObject(value) // might have deselected _id in population query
+    ) {
+      return true;
+    }
+
+    return init;
+  }
+
+  return false;
+};
+
+/*!
+ * ignore
+ */
+
+SchemaType.prototype._castRef = function _castRef(value, doc, init) {
+  if (value == null) {
+    return value;
+  }
+
+  if (value.$__ != null) {
+    value.$__.wasPopulated = value.$__.wasPopulated || { value: value._doc._id };
+    return value;
+  }
+
+  // setting a populated path
+  if (Buffer.isBuffer(value) || !utils.isObject(value)) {
+    if (init) {
+      return value;
+    }
+    throw new CastError(this.instance, value, this.path, null, this);
+  }
+
+  // Handle the case where user directly sets a populated
+  // path to a plain object; cast to the Model used in
+  // the population query.
+  const path = doc.$__fullPath(this.path, true);
+  const owner = doc.ownerDocument();
+  const pop = owner.$populated(path, true);
+
+  let ret = value;
+  if (!doc.$__.populated ||
+    !doc.$__.populated[path] ||
+    !doc.$__.populated[path].options ||
+    !doc.$__.populated[path].options.options ||
+    !doc.$__.populated[path].options.options.lean) {
+    const PopulatedModel = pop ? pop.options[populateModelSymbol] : doc.constructor.db.model(this.options.ref);
+    ret = new PopulatedModel(value);
+    ret.$__.wasPopulated = { value: ret._doc._id, options: { [populateModelSymbol]: PopulatedModel } };
+  }
+
+  return ret;
+};
+
+/*!
+ * ignore
+ */
+
+function handleSingle(val, context) {
+  return this.castForQuery(null, val, context);
+}
+
+/*!
+ * ignore
+ */
+
+function handleArray(val, context) {
+  const _this = this;
+  if (!Array.isArray(val)) {
+    return [this.castForQuery(null, val, context)];
+  }
+  return val.map(function(m) {
+    return _this.castForQuery(null, m, context);
+  });
+}
+
+/**
+ * Just like handleArray, except also allows `[]` because surprisingly
+ * `$in: [1, []]` works fine
+ * @api private
+ */
+
+function handle$in(val, context) {
+  const _this = this;
+  if (!Array.isArray(val)) {
+    return [this.castForQuery(null, val, context)];
+  }
+  return val.map(function(m) {
+    if (Array.isArray(m) && m.length === 0) {
+      return m;
+    }
+    return _this.castForQuery(null, m, context);
+  });
+}
+
+/*!
+ * ignore
+ */
+
+SchemaType.prototype.$conditionalHandlers = {
+  $all: handleArray,
+  $eq: handleSingle,
+  $in: handle$in,
+  $ne: handleSingle,
+  $nin: handle$in,
+  $exists: $exists,
+  $type: $type
+};
+
+/**
+ * Cast the given value with the given optional query operator.
+ *
+ * @param {String} [$conditional] query operator, like `$eq` or `$in`
+ * @param {Any} val
+ * @param {Query} context
+ * @return {Any}
+ * @api private
+ */
+
+SchemaType.prototype.castForQuery = function($conditional, val, context) {
+  let handler;
+  if ($conditional != null) {
+    handler = this.$conditionalHandlers[$conditional];
+    if (!handler) {
+      throw new Error('Can\'t use ' + $conditional);
+    }
+    return handler.call(this, val, context);
+  }
+
+  try {
+    return this.applySetters(val, context);
+  } catch (err) {
+    if (err instanceof CastError && err.path === this.path && this.$fullPath != null) {
+      err.path = this.$fullPath;
+    }
+    throw err;
+  }
+};
+
+/**
+ * Set & Get the `checkRequired` function
+ * Override the function the required validator uses to check whether a value
+ * passes the `required` check. Override this on the individual SchemaType.
+ *
+ * #### Example:
+ *
+ *     // Use this to allow empty strings to pass the `required` validator
+ *     mongoose.Schema.Types.String.checkRequired(v => typeof v === 'string');
+ *
+ * @param {Function} [fn] If set, will overwrite the current set function
+ * @return {Function} The input `fn` or the already set function
+ * @static
+ * @memberOf SchemaType
+ * @function checkRequired
+ * @api public
+ */
+
+SchemaType.checkRequired = function(fn) {
+  if (arguments.length !== 0) {
+    this._checkRequired = fn;
+  }
+
+  return this._checkRequired;
+};
+
+/**
+ * Default check for if this path satisfies the `required` validator.
+ *
+ * @param {Any} val
+ * @return {Boolean} `true` when the value is not `null`, `false` otherwise
+ * @api private
+ */
+
+SchemaType.prototype.checkRequired = function(val) {
+  return val != null;
+};
+
+/**
+ * Clone the current SchemaType
+ *
+ * @return {SchemaType} The cloned SchemaType instance
+ * @api private
+ */
+
+SchemaType.prototype.clone = function() {
+  const options = Object.assign({}, this.options);
+  const schematype = new this.constructor(this.path, options, this.instance);
+  schematype.validators = this.validators.slice();
+  if (this.requiredValidator !== undefined) schematype.requiredValidator = this.requiredValidator;
+  if (this.defaultValue !== undefined) schematype.defaultValue = this.defaultValue;
+  if (this.$immutable !== undefined && this.options.immutable === undefined) {
+    schematype.$immutable = this.$immutable;
+
+    handleImmutable(schematype);
+  }
+  if (this._index !== undefined) schematype._index = this._index;
+  if (this.selected !== undefined) schematype.selected = this.selected;
+  if (this.isRequired !== undefined) schematype.isRequired = this.isRequired;
+  if (this.originalRequiredValue !== undefined) schematype.originalRequiredValue = this.originalRequiredValue;
+  schematype.getters = this.getters.slice();
+  schematype.setters = this.setters.slice();
+  return schematype;
+};
+
+/**
+ * Returns the embedded schema type, if any. For arrays, document arrays, and maps, `getEmbeddedSchemaType()`
+ * returns the schema type of the array's elements (or map's elements). For other types, `getEmbeddedSchemaType()`
+ * returns `undefined`.
+ *
+ * #### Example:
+ *
+ *     const schema = new Schema({ name: String, tags: [String] });
+ *     schema.path('name').getEmbeddedSchemaType(); // undefined
+ *     schema.path('tags').getEmbeddedSchemaType(); // SchemaString { path: 'tags', ... }
+ *
+ * @returns {SchemaType} embedded schematype
+ * @api public
+ */
+
+SchemaType.prototype.getEmbeddedSchemaType = function getEmbeddedSchemaType() {
+  return this.$embeddedSchemaType;
+};
+
+/*!
+ * If _duplicateKeyErrorMessage is a string, replace unique index errors "E11000 duplicate key error" with this string.
+ *
+ * @api private
+ */
+
+SchemaType.prototype._duplicateKeyErrorMessage = null;
+
+/*!
+ * Module exports.
+ */
+
+module.exports = exports = SchemaType;
+
+exports.CastError = CastError;
+
+exports.ValidatorError = ValidatorError;
diff --git a/backend/node_modules/mongoose/lib/stateMachine.js b/backend/node_modules/mongoose/lib/stateMachine.js
new file mode 100644
index 0000000..511dc54
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/stateMachine.js
@@ -0,0 +1,232 @@
+
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const utils = require('./utils'); // eslint-disable-line no-unused-vars
+
+/**
+ * StateMachine represents a minimal `interface` for the
+ * constructors it builds via StateMachine.ctor(...).
+ *
+ * @api private
+ */
+
+const StateMachine = module.exports = exports = function StateMachine() {
+};
+
+/**
+ * StateMachine.ctor('state1', 'state2', ...)
+ * A factory method for subclassing StateMachine.
+ * The arguments are a list of states. For each state,
+ * the constructor's prototype gets state transition
+ * methods named after each state. These transition methods
+ * place their path argument into the given state.
+ *
+ * @param {String} state
+ * @param {String} [state]
+ * @return {Function} subclass constructor
+ * @api private
+ */
+
+StateMachine.ctor = function() {
+  const states = [...arguments];
+
+  const ctor = function() {
+    StateMachine.apply(this, arguments);
+    this.paths = {};
+    this.states = {};
+  };
+
+  ctor.prototype = new StateMachine();
+  ctor.prototype.constructor = ctor;
+
+  ctor.prototype.stateNames = states;
+
+  states.forEach(function(state) {
+    // Changes the `path`'s state to `state`.
+    ctor.prototype[state] = function(path) {
+      this._changeState(path, state);
+    };
+  });
+
+  return ctor;
+};
+
+/**
+ * This function is wrapped by the state change functions:
+ *
+ * - `require(path)`
+ * - `modify(path)`
+ * - `init(path)`
+ *
+ * @api private
+ */
+
+StateMachine.prototype._changeState = function _changeState(path, nextState) {
+  const prevState = this.paths[path];
+  if (prevState === nextState) {
+    return;
+  }
+  const prevBucket = this.states[prevState];
+  if (prevBucket) delete prevBucket[path];
+
+  this.paths[path] = nextState;
+  this.states[nextState] = this.states[nextState] || {};
+  this.states[nextState][path] = true;
+};
+
+/*!
+ * ignore
+ */
+
+StateMachine.prototype.clear = function clear(state) {
+  if (this.states[state] == null) {
+    return;
+  }
+  const keys = Object.keys(this.states[state]);
+  let i = keys.length;
+  let path;
+
+  while (i--) {
+    path = keys[i];
+    delete this.states[state][path];
+    delete this.paths[path];
+  }
+};
+
+/*!
+ * ignore
+ */
+
+StateMachine.prototype.clearPath = function clearPath(path) {
+  const state = this.paths[path];
+  if (!state) {
+    return;
+  }
+  delete this.paths[path];
+  delete this.states[state][path];
+};
+
+/**
+ * Gets the paths for the given state, or empty object `{}` if none.
+ * @api private
+ */
+
+StateMachine.prototype.getStatePaths = function getStatePaths(state) {
+  if (this.states[state] != null) {
+    return this.states[state];
+  }
+  return {};
+};
+
+/**
+ * Checks to see if at least one path is in the states passed in via `arguments`
+ * e.g., this.some('required', 'inited')
+ *
+ * @param {String} state that we want to check for.
+ * @api private
+ */
+
+StateMachine.prototype.some = function some() {
+  const _this = this;
+  const what = arguments.length ? arguments : this.stateNames;
+  return Array.prototype.some.call(what, function(state) {
+    if (_this.states[state] == null) {
+      return false;
+    }
+    return Object.keys(_this.states[state]).length;
+  });
+};
+
+/**
+ * This function builds the functions that get assigned to `forEach` and `map`,
+ * since both of those methods share a lot of the same logic.
+ *
+ * @param {String} iterMethod is either 'forEach' or 'map'
+ * @return {Function}
+ * @api private
+ */
+
+StateMachine.prototype._iter = function _iter(iterMethod) {
+  return function() {
+    let states = [...arguments];
+    const callback = states.pop();
+
+    if (!states.length) states = this.stateNames;
+
+    const _this = this;
+
+    const paths = states.reduce(function(paths, state) {
+      if (_this.states[state] == null) {
+        return paths;
+      }
+      return paths.concat(Object.keys(_this.states[state]));
+    }, []);
+
+    return paths[iterMethod](function(path, i, paths) {
+      return callback(path, i, paths);
+    });
+  };
+};
+
+/**
+ * Iterates over the paths that belong to one of the parameter states.
+ *
+ * The function profile can look like:
+ * this.forEach(state1, fn);         // iterates over all paths in state1
+ * this.forEach(state1, state2, fn); // iterates over all paths in state1 or state2
+ * this.forEach(fn);                 // iterates over all paths in all states
+ *
+ * @param {String} [state]
+ * @param {String} [state]
+ * @param {Function} callback
+ * @api private
+ */
+
+StateMachine.prototype.forEach = function forEach() {
+  this.forEach = this._iter('forEach');
+  return this.forEach.apply(this, arguments);
+};
+
+/**
+ * Maps over the paths that belong to one of the parameter states.
+ *
+ * The function profile can look like:
+ * this.forEach(state1, fn);         // iterates over all paths in state1
+ * this.forEach(state1, state2, fn); // iterates over all paths in state1 or state2
+ * this.forEach(fn);                 // iterates over all paths in all states
+ *
+ * @param {String} [state]
+ * @param {String} [state]
+ * @param {Function} callback
+ * @return {Array}
+ * @api private
+ */
+
+StateMachine.prototype.map = function map() {
+  this.map = this._iter('map');
+  return this.map.apply(this, arguments);
+};
+
+/**
+ * Returns a copy of this state machine
+ *
+ * @param {Function} callback
+ * @return {StateMachine}
+ * @api private
+ */
+
+StateMachine.prototype.clone = function clone() {
+  const result = new this.constructor();
+  result.paths = { ...this.paths };
+  for (const state of this.stateNames) {
+    if (!(state in this.states)) {
+      continue;
+    }
+    result.states[state] = this.states[state] == null ? this.states[state] : { ...this.states[state] };
+  }
+  return result;
+};
diff --git a/backend/node_modules/mongoose/lib/types/array/index.js b/backend/node_modules/mongoose/lib/types/array/index.js
new file mode 100644
index 0000000..1f6e6a5
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/types/array/index.js
@@ -0,0 +1,124 @@
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const Document = require('../../document');
+const mongooseArrayMethods = require('./methods');
+
+const arrayAtomicsSymbol = require('../../helpers/symbols').arrayAtomicsSymbol;
+const arrayAtomicsBackupSymbol = require('../../helpers/symbols').arrayAtomicsBackupSymbol;
+const arrayParentSymbol = require('../../helpers/symbols').arrayParentSymbol;
+const arrayPathSymbol = require('../../helpers/symbols').arrayPathSymbol;
+const arraySchemaSymbol = require('../../helpers/symbols').arraySchemaSymbol;
+
+/**
+ * Mongoose Array constructor.
+ *
+ * #### Note:
+ *
+ * _Values always have to be passed to the constructor to initialize, otherwise `MongooseArray#push` will mark the array as modified._
+ *
+ * @param {Array} values
+ * @param {String} path
+ * @param {Document} doc parent document
+ * @api private
+ * @inherits Array https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array
+ * @see https://bit.ly/f6CnZU
+ */
+const _basePush = Array.prototype.push;
+const numberRE = /^\d+$/;
+
+function MongooseArray(values, path, doc, schematype) {
+  let __array;
+
+  if (Array.isArray(values)) {
+    const len = values.length;
+
+    // Perf optimizations for small arrays: much faster to use `...` than `for` + `push`,
+    // but large arrays may cause stack overflows. And for arrays of length 0/1, just
+    // modifying the array is faster. Seems small, but adds up when you have a document
+    // with thousands of nested arrays.
+    if (len === 0) {
+      __array = new Array();
+    } else if (len === 1) {
+      __array = new Array(1);
+      __array[0] = values[0];
+    } else if (len < 10000) {
+      __array = new Array();
+      _basePush.apply(__array, values);
+    } else {
+      __array = new Array();
+      for (let i = 0; i < len; ++i) {
+        _basePush.call(__array, values[i]);
+      }
+    }
+  } else {
+    __array = [];
+  }
+
+  const internals = {
+    [arrayAtomicsSymbol]: {},
+    [arrayAtomicsBackupSymbol]: void 0,
+    [arrayPathSymbol]: path,
+    [arraySchemaSymbol]: schematype,
+    [arrayParentSymbol]: void 0,
+    isMongooseArray: true,
+    isMongooseArrayProxy: true,
+    __array: __array
+  };
+
+  if (values && values[arrayAtomicsSymbol] != null) {
+    internals[arrayAtomicsSymbol] = values[arrayAtomicsSymbol];
+  }
+
+  // Because doc comes from the context of another function, doc === global
+  // can happen if there was a null somewhere up the chain (see #3020)
+  // RB Jun 17, 2015 updated to check for presence of expected paths instead
+  // to make more proof against unusual node environments
+  if (doc != null && doc instanceof Document) {
+    internals[arrayParentSymbol] = doc;
+    internals[arraySchemaSymbol] = schematype || doc.schema.path(path);
+  }
+
+  const proxy = new Proxy(__array, {
+    get: function(target, prop) {
+      if (internals.hasOwnProperty(prop)) {
+        return internals[prop];
+      }
+      if (mongooseArrayMethods.hasOwnProperty(prop)) {
+        return mongooseArrayMethods[prop];
+      }
+      if (schematype && schematype.virtuals && schematype.virtuals.hasOwnProperty(prop)) {
+        return schematype.virtuals[prop].applyGetters(undefined, target);
+      }
+      if (typeof prop === 'string' && numberRE.test(prop) && schematype?.$embeddedSchemaType != null) {
+        return schematype.$embeddedSchemaType.applyGetters(__array[prop], doc);
+      }
+
+      return __array[prop];
+    },
+    set: function(target, prop, value) {
+      if (typeof prop === 'string' && numberRE.test(prop)) {
+        mongooseArrayMethods.set.call(proxy, prop, value, false);
+      } else if (internals.hasOwnProperty(prop)) {
+        internals[prop] = value;
+      } else if (schematype && schematype.virtuals && schematype.virtuals.hasOwnProperty(prop)) {
+        schematype.virtuals[prop].applySetters(value, target);
+      } else {
+        __array[prop] = value;
+      }
+
+      return true;
+    }
+  });
+
+  return proxy;
+}
+
+/*!
+ * Module exports.
+ */
+
+module.exports = exports = MongooseArray;
diff --git a/backend/node_modules/mongoose/lib/types/array/isMongooseArray.js b/backend/node_modules/mongoose/lib/types/array/isMongooseArray.js
new file mode 100644
index 0000000..8932613
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/types/array/isMongooseArray.js
@@ -0,0 +1,5 @@
+'use strict';
+
+exports.isMongooseArray = function(mongooseArray) {
+  return Array.isArray(mongooseArray) && mongooseArray.isMongooseArray;
+};
diff --git a/backend/node_modules/mongoose/lib/types/array/methods/index.js b/backend/node_modules/mongoose/lib/types/array/methods/index.js
new file mode 100644
index 0000000..3322bbe
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/types/array/methods/index.js
@@ -0,0 +1,1058 @@
+'use strict';
+
+const Document = require('../../../document');
+const ArraySubdocument = require('../../arraySubdocument');
+const MongooseError = require('../../../error/mongooseError');
+const cleanModifiedSubpaths = require('../../../helpers/document/cleanModifiedSubpaths');
+const clone = require('../../../helpers/clone');
+const internalToObjectOptions = require('../../../options').internalToObjectOptions;
+const mpath = require('mpath');
+const utils = require('../../../utils');
+const isBsonType = require('../../../helpers/isBsonType');
+
+const arrayAtomicsSymbol = require('../../../helpers/symbols').arrayAtomicsSymbol;
+const arrayParentSymbol = require('../../../helpers/symbols').arrayParentSymbol;
+const arrayPathSymbol = require('../../../helpers/symbols').arrayPathSymbol;
+const arraySchemaSymbol = require('../../../helpers/symbols').arraySchemaSymbol;
+const populateModelSymbol = require('../../../helpers/symbols').populateModelSymbol;
+const slicedSymbol = Symbol('mongoose#Array#sliced');
+
+const _basePush = Array.prototype.push;
+
+/*!
+ * ignore
+ */
+
+const methods = {
+  /**
+   * Depopulates stored atomic operation values as necessary for direct insertion to MongoDB.
+   *
+   * If no atomics exist, we return all array values after conversion.
+   *
+   * @return {Array}
+   * @method $__getAtomics
+   * @memberOf MongooseArray
+   * @instance
+   * @api private
+   */
+
+  $__getAtomics() {
+    const ret = [];
+    const keys = Object.keys(this[arrayAtomicsSymbol] || {});
+    let i = keys.length;
+
+    const opts = Object.assign({}, internalToObjectOptions, { _isNested: true });
+
+    if (i === 0) {
+      ret[0] = ['$set', this.toObject(opts)];
+      return ret;
+    }
+
+    while (i--) {
+      const op = keys[i];
+      let val = this[arrayAtomicsSymbol][op];
+
+      // the atomic values which are arrays are not MongooseArrays. we
+      // need to convert their elements as if they were MongooseArrays
+      // to handle populated arrays versus DocumentArrays properly.
+      if (utils.isMongooseObject(val)) {
+        val = val.toObject(opts);
+      } else if (Array.isArray(val)) {
+        val = this.toObject.call(val, opts);
+      } else if (val != null && Array.isArray(val.$each)) {
+        val.$each = this.toObject.call(val.$each, opts);
+      } else if (val != null && typeof val.valueOf === 'function') {
+        val = val.valueOf();
+      }
+
+      if (op === '$addToSet') {
+        val = { $each: val };
+      }
+
+      ret.push([op, val]);
+    }
+
+    return ret;
+  },
+
+  /*!
+   * ignore
+   */
+
+  $atomics() {
+    return this[arrayAtomicsSymbol];
+  },
+
+  /*!
+   * ignore
+   */
+
+  $parent() {
+    return this[arrayParentSymbol];
+  },
+
+  /*!
+   * ignore
+   */
+
+  $path() {
+    return this[arrayPathSymbol];
+  },
+
+  /**
+   * Atomically shifts the array at most one time per document `save()`.
+   *
+   * #### Note:
+   *
+   * _Calling this multiple times on an array before saving sends the same command as calling it once._
+   * _This update is implemented using the MongoDB [$pop](https://www.mongodb.com/docs/manual/reference/operator/update/pop/) method which enforces this restriction._
+   *
+   *      doc.array = [1,2,3];
+   *
+   *      const shifted = doc.array.$shift();
+   *      console.log(shifted); // 1
+   *      console.log(doc.array); // [2,3]
+   *
+   *      // no affect
+   *      shifted = doc.array.$shift();
+   *      console.log(doc.array); // [2,3]
+   *
+   *      doc.save(function (err) {
+   *        if (err) return handleError(err);
+   *
+   *        // we saved, now $shift works again
+   *        shifted = doc.array.$shift();
+   *        console.log(shifted ); // 2
+   *        console.log(doc.array); // [3]
+   *      })
+   *
+   * @api public
+   * @memberOf MongooseArray
+   * @instance
+   * @method $shift
+   * @see mongodb https://www.mongodb.com/docs/manual/reference/operator/update/pop/
+   */
+
+  $shift() {
+    this._registerAtomic('$pop', -1);
+    this._markModified();
+
+    // only allow shifting once
+    const __array = this.__array;
+    if (__array._shifted) {
+      return;
+    }
+    __array._shifted = true;
+
+    return [].shift.call(__array);
+  },
+
+  /**
+   * Pops the array atomically at most one time per document `save()`.
+   *
+   * #### NOTE:
+   *
+   * _Calling this multiple times on an array before saving sends the same command as calling it once._
+   * _This update is implemented using the MongoDB [$pop](https://www.mongodb.com/docs/manual/reference/operator/update/pop/) method which enforces this restriction._
+   *
+   *      doc.array = [1,2,3];
+   *
+   *      const popped = doc.array.$pop();
+   *      console.log(popped); // 3
+   *      console.log(doc.array); // [1,2]
+   *
+   *      // no affect
+   *      popped = doc.array.$pop();
+   *      console.log(doc.array); // [1,2]
+   *
+   *      doc.save(function (err) {
+   *        if (err) return handleError(err);
+   *
+   *        // we saved, now $pop works again
+   *        popped = doc.array.$pop();
+   *        console.log(popped); // 2
+   *        console.log(doc.array); // [1]
+   *      })
+   *
+   * @api public
+   * @method $pop
+   * @memberOf MongooseArray
+   * @instance
+   * @see mongodb https://www.mongodb.com/docs/manual/reference/operator/update/pop/
+   * @method $pop
+   * @memberOf MongooseArray
+   */
+
+  $pop() {
+    this._registerAtomic('$pop', 1);
+    this._markModified();
+
+    // only allow popping once
+    if (this._popped) {
+      return;
+    }
+    this._popped = true;
+
+    return [].pop.call(this);
+  },
+
+  /*!
+   * ignore
+   */
+
+  $schema() {
+    return this[arraySchemaSymbol];
+  },
+
+  /**
+   * Casts a member based on this arrays schema.
+   *
+   * @param {any} value
+   * @return value the casted value
+   * @method _cast
+   * @api private
+   * @memberOf MongooseArray
+   */
+
+  _cast(value) {
+    let populated = false;
+    let Model;
+
+    const parent = this[arrayParentSymbol];
+    if (parent) {
+      populated = parent.$populated(this[arrayPathSymbol], true);
+    }
+
+    if (populated && value !== null && value !== undefined) {
+      // cast to the populated Models schema
+      Model = populated.options[populateModelSymbol];
+      if (Model == null) {
+        throw new MongooseError('No populated model found for path `' + this[arrayPathSymbol] + '`. This is likely a bug in Mongoose, please report an issue on github.com/Automattic/mongoose.');
+      }
+
+      // only objects are permitted so we can safely assume that
+      // non-objects are to be interpreted as _id
+      if (Buffer.isBuffer(value) ||
+          isBsonType(value, 'ObjectId') || !utils.isObject(value)) {
+        value = { _id: value };
+      }
+
+      // gh-2399
+      // we should cast model only when it's not a discriminator
+      const isDisc = value.schema && value.schema.discriminatorMapping &&
+          value.schema.discriminatorMapping.key !== undefined;
+      if (!isDisc) {
+        value = new Model(value);
+      }
+      return this[arraySchemaSymbol].caster.applySetters(value, parent, true);
+    }
+
+    return this[arraySchemaSymbol].caster.applySetters(value, parent, false);
+  },
+
+  /**
+   * Internal helper for .map()
+   *
+   * @api private
+   * @return {Number}
+   * @method _mapCast
+   * @memberOf MongooseArray
+   */
+
+  _mapCast(val, index) {
+    return this._cast(val, this.length + index);
+  },
+
+  /**
+   * Marks this array as modified.
+   *
+   * If it bubbles up from an embedded document change, then it takes the following arguments (otherwise, takes 0 arguments)
+   *
+   * @param {ArraySubdocument} subdoc the embedded doc that invoked this method on the Array
+   * @param {String} embeddedPath the path which changed in the subdoc
+   * @method _markModified
+   * @api private
+   * @memberOf MongooseArray
+   */
+
+  _markModified(elem) {
+    const parent = this[arrayParentSymbol];
+    let dirtyPath;
+
+    if (parent) {
+      dirtyPath = this[arrayPathSymbol];
+
+      if (arguments.length) {
+        dirtyPath = dirtyPath + '.' + elem;
+      }
+
+      if (dirtyPath != null && dirtyPath.endsWith('.$')) {
+        return this;
+      }
+
+      parent.markModified(dirtyPath, arguments.length !== 0 ? elem : parent);
+    }
+
+    return this;
+  },
+
+  /**
+   * Register an atomic operation with the parent.
+   *
+   * @param {Array} op operation
+   * @param {any} val
+   * @method _registerAtomic
+   * @api private
+   * @memberOf MongooseArray
+   */
+
+  _registerAtomic(op, val) {
+    if (this[slicedSymbol]) {
+      return;
+    }
+    if (op === '$set') {
+      // $set takes precedence over all other ops.
+      // mark entire array modified.
+      this[arrayAtomicsSymbol] = { $set: val };
+      cleanModifiedSubpaths(this[arrayParentSymbol], this[arrayPathSymbol]);
+      this._markModified();
+      return this;
+    }
+
+    const atomics = this[arrayAtomicsSymbol];
+
+    // reset pop/shift after save
+    if (op === '$pop' && !('$pop' in atomics)) {
+      const _this = this;
+      this[arrayParentSymbol].once('save', function() {
+        _this._popped = _this._shifted = null;
+      });
+    }
+
+    // check for impossible $atomic combos (Mongo denies more than one
+    // $atomic op on a single path
+    if (atomics.$set || Object.keys(atomics).length && !(op in atomics)) {
+      // a different op was previously registered.
+      // save the entire thing.
+      this[arrayAtomicsSymbol] = { $set: this };
+      return this;
+    }
+
+    let selector;
+
+    if (op === '$pullAll' || op === '$addToSet') {
+      atomics[op] || (atomics[op] = []);
+      atomics[op] = atomics[op].concat(val);
+    } else if (op === '$pullDocs') {
+      const pullOp = atomics['$pull'] || (atomics['$pull'] = {});
+      if (val[0] instanceof ArraySubdocument) {
+        selector = pullOp['$or'] || (pullOp['$or'] = []);
+        Array.prototype.push.apply(selector, val.map(v => {
+          return v.toObject({
+            transform: (doc, ret) => {
+              if (v == null || v.$__ == null) {
+                return ret;
+              }
+
+              Object.keys(v.$__.activePaths.getStatePaths('default')).forEach(path => {
+                mpath.unset(path, ret);
+
+                _minimizePath(ret, path);
+              });
+
+              return ret;
+            },
+            virtuals: false
+          });
+        }));
+      } else {
+        selector = pullOp['_id'] || (pullOp['_id'] = { $in: [] });
+        selector['$in'] = selector['$in'].concat(val);
+      }
+    } else if (op === '$push') {
+      atomics.$push = atomics.$push || { $each: [] };
+      if (val != null && utils.hasUserDefinedProperty(val, '$each')) {
+        atomics.$push = val;
+      } else {
+        if (val.length === 1) {
+          atomics.$push.$each.push(val[0]);
+        } else if (val.length < 10000) {
+          atomics.$push.$each.push(...val);
+        } else {
+          for (const v of val) {
+            atomics.$push.$each.push(v);
+          }
+        }
+      }
+    } else {
+      atomics[op] = val;
+    }
+
+    return this;
+  },
+
+  /**
+   * Adds values to the array if not already present.
+   *
+   * #### Example:
+   *
+   *     console.log(doc.array) // [2,3,4]
+   *     const added = doc.array.addToSet(4,5);
+   *     console.log(doc.array) // [2,3,4,5]
+   *     console.log(added)     // [5]
+   *
+   * @param {...any} [args]
+   * @return {Array} the values that were added
+   * @memberOf MongooseArray
+   * @api public
+   * @method addToSet
+   */
+
+  addToSet() {
+    _checkManualPopulation(this, arguments);
+    _depopulateIfNecessary(this, arguments);
+
+    const values = [].map.call(arguments, this._mapCast, this);
+    const added = [];
+    let type = '';
+    if (values[0] instanceof ArraySubdocument) {
+      type = 'doc';
+    } else if (values[0] instanceof Date) {
+      type = 'date';
+    } else if (isBsonType(values[0], 'ObjectId')) {
+      type = 'ObjectId';
+    }
+
+    const rawValues = utils.isMongooseArray(values) ? values.__array : values;
+    const rawArray = utils.isMongooseArray(this) ? this.__array : this;
+
+    rawValues.forEach(function(v) {
+      let found;
+      const val = +v;
+      switch (type) {
+        case 'doc':
+          found = this.some(function(doc) {
+            return doc.equals(v);
+          });
+          break;
+        case 'date':
+          found = this.some(function(d) {
+            return +d === val;
+          });
+          break;
+        case 'ObjectId':
+          found = this.find(o => o.toString() === v.toString());
+          break;
+        default:
+          found = ~this.indexOf(v);
+          break;
+      }
+
+      if (!found) {
+        this._markModified();
+        rawArray.push(v);
+        this._registerAtomic('$addToSet', v);
+        [].push.call(added, v);
+      }
+    }, this);
+
+    return added;
+  },
+
+  /**
+   * Returns the number of pending atomic operations to send to the db for this array.
+   *
+   * @api private
+   * @return {Number}
+   * @method hasAtomics
+   * @memberOf MongooseArray
+   */
+
+  hasAtomics() {
+    if (!utils.isPOJO(this[arrayAtomicsSymbol])) {
+      return 0;
+    }
+
+    return Object.keys(this[arrayAtomicsSymbol]).length;
+  },
+
+  /**
+   * Return whether or not the `obj` is included in the array.
+   *
+   * @param {Object} obj the item to check
+   * @param {Number} fromIndex
+   * @return {Boolean}
+   * @api public
+   * @method includes
+   * @memberOf MongooseArray
+   */
+
+  includes(obj, fromIndex) {
+    const ret = this.indexOf(obj, fromIndex);
+    return ret !== -1;
+  },
+
+  /**
+   * Return the index of `obj` or `-1` if not found.
+   *
+   * @param {Object} obj the item to look for
+   * @param {Number} fromIndex
+   * @return {Number}
+   * @api public
+   * @method indexOf
+   * @memberOf MongooseArray
+   */
+
+  indexOf(obj, fromIndex) {
+    if (isBsonType(obj, 'ObjectId')) {
+      obj = obj.toString();
+    }
+
+    fromIndex = fromIndex == null ? 0 : fromIndex;
+    const len = this.length;
+    for (let i = fromIndex; i < len; ++i) {
+      if (obj == this[i]) {
+        return i;
+      }
+    }
+    return -1;
+  },
+
+  /**
+   * Helper for console.log
+   *
+   * @api public
+   * @method inspect
+   * @memberOf MongooseArray
+   */
+
+  inspect() {
+    return JSON.stringify(this);
+  },
+
+  /**
+   * Pushes items to the array non-atomically.
+   *
+   * #### Note:
+   *
+   * _marks the entire array as modified, which if saved, will store it as a `$set` operation, potentially overwritting any changes that happen between when you retrieved the object and when you save it._
+   *
+   * @param {...any} [args]
+   * @api public
+   * @method nonAtomicPush
+   * @memberOf MongooseArray
+   */
+
+  nonAtomicPush() {
+    const values = [].map.call(arguments, this._mapCast, this);
+    this._markModified();
+    const ret = [].push.apply(this, values);
+    this._registerAtomic('$set', this);
+    return ret;
+  },
+
+  /**
+   * Wraps [`Array#pop`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/pop) with proper change tracking.
+   *
+   * #### Note:
+   *
+   * _marks the entire array as modified which will pass the entire thing to $set potentially overwriting any changes that happen between when you retrieved the object and when you save it._
+   *
+   * @see MongooseArray#$pop https://mongoosejs.com/docs/api/array.html#MongooseArray.prototype.$pop()
+   * @api public
+   * @method pop
+   * @memberOf MongooseArray
+   */
+
+  pop() {
+    this._markModified();
+    const ret = [].pop.call(this);
+    this._registerAtomic('$set', this);
+    return ret;
+  },
+
+  /**
+   * Pulls items from the array atomically. Equality is determined by casting
+   * the provided value to an embedded document and comparing using
+   * [the `Document.equals()` function.](https://mongoosejs.com/docs/api/document.html#Document.prototype.equals())
+   *
+   * #### Example:
+   *
+   *     doc.array.pull(ObjectId)
+   *     doc.array.pull({ _id: 'someId' })
+   *     doc.array.pull(36)
+   *     doc.array.pull('tag 1', 'tag 2')
+   *
+   * To remove a document from a subdocument array we may pass an object with a matching `_id`.
+   *
+   *     doc.subdocs.push({ _id: 4815162342 })
+   *     doc.subdocs.pull({ _id: 4815162342 }) // removed
+   *
+   * Or we may passing the _id directly and let mongoose take care of it.
+   *
+   *     doc.subdocs.push({ _id: 4815162342 })
+   *     doc.subdocs.pull(4815162342); // works
+   *
+   * The first pull call will result in a atomic operation on the database, if pull is called repeatedly without saving the document, a $set operation is used on the complete array instead, overwriting possible changes that happened on the database in the meantime.
+   *
+   * @param {...any} [args]
+   * @see mongodb https://www.mongodb.com/docs/manual/reference/operator/update/pull/
+   * @api public
+   * @method pull
+   * @memberOf MongooseArray
+   */
+
+  pull() {
+    const values = [].map.call(arguments, (v, i) => this._cast(v, i, { defaults: false }), this);
+    let cur = this[arrayParentSymbol].get(this[arrayPathSymbol]);
+    if (utils.isMongooseArray(cur)) {
+      cur = cur.__array;
+    }
+    let i = cur.length;
+    let mem;
+    this._markModified();
+
+    while (i--) {
+      mem = cur[i];
+      if (mem instanceof Document) {
+        const some = values.some(function(v) {
+          return mem.equals(v);
+        });
+        if (some) {
+          cur.splice(i, 1);
+        }
+      } else if (~this.indexOf.call(values, mem)) {
+        cur.splice(i, 1);
+      }
+    }
+
+    if (values[0] instanceof ArraySubdocument) {
+      this._registerAtomic('$pullDocs', values.map(function(v) {
+        const _id = v.$__getValue('_id');
+        if (_id === undefined || v.$isDefault('_id')) {
+          return v;
+        }
+        return _id;
+      }));
+    } else {
+      this._registerAtomic('$pullAll', values);
+    }
+
+
+    // Might have modified child paths and then pulled, like
+    // `doc.children[1].name = 'test';` followed by
+    // `doc.children.remove(doc.children[0]);`. In this case we fall back
+    // to a `$set` on the whole array. See #3511
+    if (cleanModifiedSubpaths(this[arrayParentSymbol], this[arrayPathSymbol]) > 0) {
+      this._registerAtomic('$set', this);
+    }
+
+    return this;
+  },
+
+  /**
+   * Wraps [`Array#push`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/push) with proper change tracking.
+   *
+   * #### Example:
+   *
+   *     const schema = Schema({ nums: [Number] });
+   *     const Model = mongoose.model('Test', schema);
+   *
+   *     const doc = await Model.create({ nums: [3, 4] });
+   *     doc.nums.push(5); // Add 5 to the end of the array
+   *     await doc.save();
+   *
+   *     // You can also pass an object with `$each` as the
+   *     // first parameter to use MongoDB's `$position`
+   *     doc.nums.push({
+   *       $each: [1, 2],
+   *       $position: 0
+   *     });
+   *     doc.nums; // [1, 2, 3, 4, 5]
+   *
+   * @param {...Object} [args]
+   * @api public
+   * @method push
+   * @memberOf MongooseArray
+   */
+
+  push() {
+    let values = arguments;
+    let atomic = values;
+    const isOverwrite = values[0] != null &&
+      utils.hasUserDefinedProperty(values[0], '$each');
+    const arr = utils.isMongooseArray(this) ? this.__array : this;
+    if (isOverwrite) {
+      atomic = values[0];
+      values = values[0].$each;
+    }
+
+    if (this[arraySchemaSymbol] == null) {
+      return _basePush.apply(this, values);
+    }
+
+    _checkManualPopulation(this, values);
+    _depopulateIfNecessary(this, values);
+
+    values = [].map.call(values, this._mapCast, this);
+    let ret;
+    const atomics = this[arrayAtomicsSymbol];
+    this._markModified();
+    if (isOverwrite) {
+      atomic.$each = values;
+
+      if ((atomics.$push && atomics.$push.$each && atomics.$push.$each.length || 0) !== 0 &&
+          atomics.$push.$position != atomic.$position) {
+        if (atomic.$position != null) {
+          [].splice.apply(arr, [atomic.$position, 0].concat(values));
+          ret = arr.length;
+        } else {
+          ret = [].push.apply(arr, values);
+        }
+
+        this._registerAtomic('$set', this);
+      } else if (atomic.$position != null) {
+        [].splice.apply(arr, [atomic.$position, 0].concat(values));
+        ret = this.length;
+      } else {
+        ret = [].push.apply(arr, values);
+      }
+    } else {
+      atomic = values;
+      ret = _basePush.apply(arr, values);
+    }
+
+    this._registerAtomic('$push', atomic);
+
+    return ret;
+  },
+
+  /**
+   * Alias of [pull](https://mongoosejs.com/docs/api/array.html#MongooseArray.prototype.pull())
+   *
+   * @see MongooseArray#pull https://mongoosejs.com/docs/api/array.html#MongooseArray.prototype.pull()
+   * @see mongodb https://www.mongodb.com/docs/manual/reference/operator/update/pull/
+   * @api public
+   * @memberOf MongooseArray
+   * @instance
+   * @method remove
+   */
+
+  remove() {
+    return this.pull.apply(this, arguments);
+  },
+
+  /**
+   * Sets the casted `val` at index `i` and marks the array modified.
+   *
+   * #### Example:
+   *
+   *     // given documents based on the following
+   *     const Doc = mongoose.model('Doc', new Schema({ array: [Number] }));
+   *
+   *     const doc = new Doc({ array: [2,3,4] })
+   *
+   *     console.log(doc.array) // [2,3,4]
+   *
+   *     doc.array.set(1,"5");
+   *     console.log(doc.array); // [2,5,4] // properly cast to number
+   *     doc.save() // the change is saved
+   *
+   *     // VS not using array#set
+   *     doc.array[1] = "5";
+   *     console.log(doc.array); // [2,"5",4] // no casting
+   *     doc.save() // change is not saved
+   *
+   * @return {Array} this
+   * @api public
+   * @method set
+   * @memberOf MongooseArray
+   */
+
+  set(i, val, skipModified) {
+    const arr = this.__array;
+    if (skipModified) {
+      arr[i] = val;
+      return this;
+    }
+    const value = methods._cast.call(this, val, i);
+    methods._markModified.call(this, i);
+    arr[i] = value;
+    return this;
+  },
+
+  /**
+   * Wraps [`Array#shift`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/unshift) with proper change tracking.
+   *
+   * #### Example:
+   *
+   *     doc.array = [2,3];
+   *     const res = doc.array.shift();
+   *     console.log(res) // 2
+   *     console.log(doc.array) // [3]
+   *
+   * #### Note:
+   *
+   * _marks the entire array as modified, which if saved, will store it as a `$set` operation, potentially overwritting any changes that happen between when you retrieved the object and when you save it._
+   *
+   * @api public
+   * @method shift
+   * @memberOf MongooseArray
+   */
+
+  shift() {
+    const arr = utils.isMongooseArray(this) ? this.__array : this;
+    this._markModified();
+    const ret = [].shift.call(arr);
+    this._registerAtomic('$set', this);
+    return ret;
+  },
+
+  /**
+   * Wraps [`Array#sort`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/sort) with proper change tracking.
+   *
+   * #### Note:
+   *
+   * _marks the entire array as modified, which if saved, will store it as a `$set` operation, potentially overwritting any changes that happen between when you retrieved the object and when you save it._
+   *
+   * @api public
+   * @method sort
+   * @memberOf MongooseArray
+   * @see MasteringJS: Array sort https://masteringjs.io/tutorials/fundamentals/array-sort
+   */
+
+  sort() {
+    const arr = utils.isMongooseArray(this) ? this.__array : this;
+    const ret = [].sort.apply(arr, arguments);
+    this._registerAtomic('$set', this);
+    return ret;
+  },
+
+  /**
+   * Wraps [`Array#splice`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/splice) with proper change tracking and casting.
+   *
+   * #### Note:
+   *
+   * _marks the entire array as modified, which if saved, will store it as a `$set` operation, potentially overwritting any changes that happen between when you retrieved the object and when you save it._
+   *
+   * @api public
+   * @method splice
+   * @memberOf MongooseArray
+   * @see MasteringJS: Array splice https://masteringjs.io/tutorials/fundamentals/array-splice
+   */
+
+  splice() {
+    let ret;
+    const arr = utils.isMongooseArray(this) ? this.__array : this;
+
+    this._markModified();
+    _checkManualPopulation(this, Array.prototype.slice.call(arguments, 2));
+
+    if (arguments.length) {
+      let vals;
+      if (this[arraySchemaSymbol] == null) {
+        vals = arguments;
+      } else {
+        vals = [];
+        for (let i = 0; i < arguments.length; ++i) {
+          vals[i] = i < 2 ?
+            arguments[i] :
+            this._cast(arguments[i], arguments[0] + (i - 2));
+        }
+      }
+
+      ret = [].splice.apply(arr, vals);
+      this._registerAtomic('$set', this);
+    }
+
+    return ret;
+  },
+
+  /*!
+   * ignore
+   */
+
+  toBSON() {
+    return this.toObject(internalToObjectOptions);
+  },
+
+  /**
+   * Returns a native js Array.
+   *
+   * @param {Object} options
+   * @return {Array}
+   * @api public
+   * @method toObject
+   * @memberOf MongooseArray
+   */
+
+  toObject(options) {
+    const arr = utils.isMongooseArray(this) ? this.__array : this;
+    if (options && options.depopulate) {
+      options = clone(options);
+      options._isNested = true;
+      // Ensure return value is a vanilla array, because in Node.js 6+ `map()`
+      // is smart enough to use the inherited array's constructor.
+      return [].concat(arr).map(function(doc) {
+        return doc instanceof Document
+          ? doc.toObject(options)
+          : doc;
+      });
+    }
+
+    return [].concat(arr);
+  },
+
+  $toObject() {
+    return this.constructor.prototype.toObject.apply(this, arguments);
+  },
+  /**
+   * Wraps [`Array#unshift`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/unshift) with proper change tracking.
+   *
+   * #### Note:
+   *
+   * _marks the entire array as modified, which if saved, will store it as a `$set` operation, potentially overwriting any changes that happen between when you retrieved the object and when you save it._
+   *
+   * @api public
+   * @method unshift
+   * @memberOf MongooseArray
+   */
+
+  unshift() {
+    _checkManualPopulation(this, arguments);
+
+    let values;
+    if (this[arraySchemaSymbol] == null) {
+      values = arguments;
+    } else {
+      values = [].map.call(arguments, this._cast, this);
+    }
+
+    const arr = utils.isMongooseArray(this) ? this.__array : this;
+    this._markModified();
+    [].unshift.apply(arr, values);
+    this._registerAtomic('$set', this);
+    return this.length;
+  }
+};
+
+/*!
+ * ignore
+ */
+
+function _isAllSubdocs(docs, ref) {
+  if (!ref) {
+    return false;
+  }
+
+  for (const arg of docs) {
+    if (arg == null) {
+      return false;
+    }
+    const model = arg.constructor;
+    if (!(arg instanceof Document) ||
+      (model.modelName !== ref && model.baseModelName !== ref)) {
+      return false;
+    }
+  }
+
+  return true;
+}
+
+/*!
+ * Minimize _just_ empty objects along the path chain specified
+ * by `parts`, ignoring all other paths. Useful in cases where
+ * you want to minimize after unsetting a path.
+ *
+ * #### Example:
+ *
+ *     const obj = { foo: { bar: { baz: {} } }, a: {} };
+ *     _minimizePath(obj, 'foo.bar.baz');
+ *     obj; // { a: {} }
+ */
+
+function _minimizePath(obj, parts, i) {
+  if (typeof parts === 'string') {
+    if (parts.indexOf('.') === -1) {
+      return;
+    }
+
+    parts = mpath.stringToParts(parts);
+  }
+  i = i || 0;
+  if (i >= parts.length) {
+    return;
+  }
+  if (obj == null || typeof obj !== 'object') {
+    return;
+  }
+
+  _minimizePath(obj[parts[0]], parts, i + 1);
+  if (obj[parts[0]] != null && typeof obj[parts[0]] === 'object' && Object.keys(obj[parts[0]]).length === 0) {
+    delete obj[parts[0]];
+  }
+}
+
+/*!
+ * ignore
+ */
+
+function _checkManualPopulation(arr, docs) {
+  const ref = arr == null ?
+    null :
+    arr[arraySchemaSymbol] && arr[arraySchemaSymbol].caster && arr[arraySchemaSymbol].caster.options && arr[arraySchemaSymbol].caster.options.ref || null;
+  if (arr.length === 0 &&
+      docs.length !== 0) {
+    if (_isAllSubdocs(docs, ref)) {
+      arr[arrayParentSymbol].$populated(arr[arrayPathSymbol], [], {
+        [populateModelSymbol]: docs[0].constructor
+      });
+    }
+  }
+}
+
+/*!
+ * If `docs` isn't all instances of the right model, depopulate `arr`
+ */
+
+function _depopulateIfNecessary(arr, docs) {
+  const ref = arr == null ?
+    null :
+    arr[arraySchemaSymbol] && arr[arraySchemaSymbol].caster && arr[arraySchemaSymbol].caster.options && arr[arraySchemaSymbol].caster.options.ref || null;
+  const parentDoc = arr[arrayParentSymbol];
+  const path = arr[arrayPathSymbol];
+  if (!ref || !parentDoc.populated(path)) {
+    return;
+  }
+  for (const doc of docs) {
+    if (doc == null) {
+      continue;
+    }
+    if (typeof doc !== 'object' || doc instanceof String || doc instanceof Number || doc instanceof Buffer || utils.isMongooseType(doc)) {
+      parentDoc.depopulate(path);
+      break;
+    }
+  }
+}
+
+const returnVanillaArrayMethods = [
+  'filter',
+  'flat',
+  'flatMap',
+  'map',
+  'slice'
+];
+for (const method of returnVanillaArrayMethods) {
+  if (Array.prototype[method] == null) {
+    continue;
+  }
+
+  methods[method] = function() {
+    const _arr = utils.isMongooseArray(this) ? this.__array : this;
+    const arr = [].concat(_arr);
+
+    return arr[method].apply(arr, arguments);
+  };
+}
+
+module.exports = methods;
diff --git a/backend/node_modules/mongoose/lib/types/arraySubdocument.js b/backend/node_modules/mongoose/lib/types/arraySubdocument.js
new file mode 100644
index 0000000..920088f
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/types/arraySubdocument.js
@@ -0,0 +1,197 @@
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const EventEmitter = require('events').EventEmitter;
+const Subdocument = require('./subdocument');
+const utils = require('../utils');
+
+const documentArrayParent = require('../helpers/symbols').documentArrayParent;
+
+/**
+ * A constructor.
+ *
+ * @param {Object} obj js object returned from the db
+ * @param {MongooseDocumentArray} parentArr the parent array of this document
+ * @param {Boolean} skipId
+ * @param {Object} fields
+ * @param {Number} index
+ * @inherits Document
+ * @api private
+ */
+
+function ArraySubdocument(obj, parentArr, skipId, fields, index) {
+  if (utils.isMongooseDocumentArray(parentArr)) {
+    this.__parentArray = parentArr;
+    this[documentArrayParent] = parentArr.$parent();
+  } else {
+    this.__parentArray = undefined;
+    this[documentArrayParent] = undefined;
+  }
+  this.$setIndex(index);
+  this.$__parent = this[documentArrayParent];
+
+  let options;
+  if (typeof skipId === 'object' && skipId != null) {
+    options = { isNew: true, ...skipId };
+    skipId = undefined;
+  } else {
+    options = { isNew: true };
+  }
+
+  Subdocument.call(this, obj, fields, this[documentArrayParent], skipId, options);
+}
+
+/*!
+ * Inherit from Subdocument
+ */
+ArraySubdocument.prototype = Object.create(Subdocument.prototype);
+ArraySubdocument.prototype.constructor = ArraySubdocument;
+
+Object.defineProperty(ArraySubdocument.prototype, '$isSingleNested', {
+  configurable: false,
+  writable: false,
+  value: false
+});
+
+Object.defineProperty(ArraySubdocument.prototype, '$isDocumentArrayElement', {
+  configurable: false,
+  writable: false,
+  value: true
+});
+
+for (const i in EventEmitter.prototype) {
+  ArraySubdocument[i] = EventEmitter.prototype[i];
+}
+
+/*!
+ * ignore
+ */
+
+ArraySubdocument.prototype.$setIndex = function(index) {
+  this.__index = index;
+
+  if (this.$__ != null && this.$__.validationError != null) {
+    const keys = Object.keys(this.$__.validationError.errors);
+    for (const key of keys) {
+      this.invalidate(key, this.$__.validationError.errors[key]);
+    }
+  }
+};
+
+/*!
+ * ignore
+ */
+
+ArraySubdocument.prototype.populate = function() {
+  throw new Error('Mongoose does not support calling populate() on nested ' +
+    'docs. Instead of `doc.arr[0].populate("path")`, use ' +
+    '`doc.populate("arr.0.path")`');
+};
+
+/*!
+ * ignore
+ */
+
+ArraySubdocument.prototype.$__removeFromParent = function() {
+  const _id = this._doc._id;
+  if (!_id) {
+    throw new Error('For your own good, Mongoose does not know ' +
+      'how to remove an ArraySubdocument that has no _id');
+  }
+  this.__parentArray.pull({ _id: _id });
+};
+
+/**
+ * Returns the full path to this document. If optional `path` is passed, it is appended to the full path.
+ *
+ * @param {String} [path]
+ * @param {Boolean} [skipIndex] Skip adding the array index. For example `arr.foo` instead of `arr.0.foo`.
+ * @return {String}
+ * @api private
+ * @method $__fullPath
+ * @memberOf ArraySubdocument
+ * @instance
+ */
+
+ArraySubdocument.prototype.$__fullPath = function(path, skipIndex) {
+  if (this.__index == null) {
+    return null;
+  }
+  if (!this.$__.fullPath) {
+    this.ownerDocument();
+  }
+
+  if (skipIndex) {
+    return path ?
+      this.$__.fullPath + '.' + path :
+      this.$__.fullPath;
+  }
+
+  return path ?
+    this.$__.fullPath + '.' + this.__index + '.' + path :
+    this.$__.fullPath + '.' + this.__index;
+};
+
+/**
+ * Given a path relative to this document, return the path relative
+ * to the top-level document.
+ * @method $__pathRelativeToParent
+ * @memberOf ArraySubdocument
+ * @instance
+ * @api private
+ */
+
+ArraySubdocument.prototype.$__pathRelativeToParent = function(path, skipIndex) {
+  if (this.__index == null || (!this.__parentArray || !this.__parentArray.$path)) {
+    return null;
+  }
+  if (skipIndex) {
+    return path == null ? this.__parentArray.$path() : this.__parentArray.$path() + '.' + path;
+  }
+  if (path == null) {
+    return this.__parentArray.$path() + '.' + this.__index;
+  }
+  return this.__parentArray.$path() + '.' + this.__index + '.' + path;
+};
+
+/**
+ * Returns this sub-documents parent document.
+ * @method $parent
+ * @memberOf ArraySubdocument
+ * @instance
+ * @api public
+ */
+
+ArraySubdocument.prototype.$parent = function() {
+  return this[documentArrayParent];
+};
+
+/**
+ * Returns this subdocument's parent array.
+ *
+ * #### Example:
+ *
+ *     const Test = mongoose.model('Test', new Schema({
+ *       docArr: [{ name: String }]
+ *     }));
+ *     const doc = new Test({ docArr: [{ name: 'test subdoc' }] });
+ *
+ *     doc.docArr[0].parentArray() === doc.docArr; // true
+ *
+ * @api public
+ * @method parentArray
+ * @returns DocumentArray
+ */
+
+ArraySubdocument.prototype.parentArray = function() {
+  return this.__parentArray;
+};
+
+/*!
+ * Module exports.
+ */
+
+module.exports = ArraySubdocument;
diff --git a/backend/node_modules/mongoose/lib/types/buffer.js b/backend/node_modules/mongoose/lib/types/buffer.js
new file mode 100644
index 0000000..4e18a2e
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/types/buffer.js
@@ -0,0 +1,277 @@
+/*!
+ * Module dependencies.
+ */
+
+'use strict';
+
+const Binary = require('bson').Binary;
+const utils = require('../utils');
+
+/**
+ * Mongoose Buffer constructor.
+ *
+ * Values always have to be passed to the constructor to initialize.
+ *
+ * @param {Buffer} value
+ * @param {String} encode
+ * @param {Number} offset
+ * @api private
+ * @inherits Buffer https://nodejs.org/api/buffer.html
+ * @see https://bit.ly/f6CnZU
+ */
+
+function MongooseBuffer(value, encode, offset) {
+  let val = value;
+  if (value == null) {
+    val = 0;
+  }
+
+  let encoding;
+  let path;
+  let doc;
+
+  if (Array.isArray(encode)) {
+    // internal casting
+    path = encode[0];
+    doc = encode[1];
+  } else {
+    encoding = encode;
+  }
+
+  let buf;
+  if (typeof val === 'number' || val instanceof Number) {
+    buf = Buffer.alloc(val);
+  } else { // string, array or object { type: 'Buffer', data: [...] }
+    buf = Buffer.from(val, encoding, offset);
+  }
+  utils.decorate(buf, MongooseBuffer.mixin);
+  buf.isMongooseBuffer = true;
+
+  // make sure these internal props don't show up in Object.keys()
+  buf[MongooseBuffer.pathSymbol] = path;
+  buf[parentSymbol] = doc;
+
+  buf._subtype = 0;
+  return buf;
+}
+
+const pathSymbol = Symbol.for('mongoose#Buffer#_path');
+const parentSymbol = Symbol.for('mongoose#Buffer#_parent');
+MongooseBuffer.pathSymbol = pathSymbol;
+
+/*!
+ * Inherit from Buffer.
+ */
+
+MongooseBuffer.mixin = {
+
+  /**
+   * Default subtype for the Binary representing this Buffer
+   *
+   * @api private
+   * @property _subtype
+   * @memberOf MongooseBuffer.mixin
+   * @static
+   */
+
+  _subtype: undefined,
+
+  /**
+   * Marks this buffer as modified.
+   *
+   * @api private
+   * @method _markModified
+   * @memberOf MongooseBuffer.mixin
+   * @static
+   */
+
+  _markModified: function() {
+    const parent = this[parentSymbol];
+
+    if (parent) {
+      parent.markModified(this[MongooseBuffer.pathSymbol]);
+    }
+    return this;
+  },
+
+  /**
+   * Writes the buffer.
+   *
+   * @api public
+   * @method write
+   * @memberOf MongooseBuffer.mixin
+   * @static
+   */
+
+  write: function() {
+    const written = Buffer.prototype.write.apply(this, arguments);
+
+    if (written > 0) {
+      this._markModified();
+    }
+
+    return written;
+  },
+
+  /**
+   * Copies the buffer.
+   *
+   * #### Note:
+   *
+   * `Buffer#copy` does not mark `target` as modified so you must copy from a `MongooseBuffer` for it to work as expected. This is a work around since `copy` modifies the target, not this.
+   *
+   * @return {Number} The number of bytes copied.
+   * @param {Buffer} target
+   * @method copy
+   * @memberOf MongooseBuffer.mixin
+   * @static
+   */
+
+  copy: function(target) {
+    const ret = Buffer.prototype.copy.apply(this, arguments);
+
+    if (target && target.isMongooseBuffer) {
+      target._markModified();
+    }
+
+    return ret;
+  }
+};
+
+/*!
+ * Compile other Buffer methods marking this buffer as modified.
+ */
+
+utils.each(
+  [
+    // node < 0.5
+    'writeUInt8', 'writeUInt16', 'writeUInt32', 'writeInt8', 'writeInt16', 'writeInt32',
+    'writeFloat', 'writeDouble', 'fill',
+    'utf8Write', 'binaryWrite', 'asciiWrite', 'set',
+
+    // node >= 0.5
+    'writeUInt16LE', 'writeUInt16BE', 'writeUInt32LE', 'writeUInt32BE',
+    'writeInt16LE', 'writeInt16BE', 'writeInt32LE', 'writeInt32BE', 'writeFloatLE', 'writeFloatBE', 'writeDoubleLE', 'writeDoubleBE']
+  , function(method) {
+    if (!Buffer.prototype[method]) {
+      return;
+    }
+    MongooseBuffer.mixin[method] = function() {
+      const ret = Buffer.prototype[method].apply(this, arguments);
+      this._markModified();
+      return ret;
+    };
+  });
+
+/**
+ * Converts this buffer to its Binary type representation.
+ *
+ * #### SubTypes:
+ *
+ *     const bson = require('bson')
+ *     bson.BSON_BINARY_SUBTYPE_DEFAULT
+ *     bson.BSON_BINARY_SUBTYPE_FUNCTION
+ *     bson.BSON_BINARY_SUBTYPE_BYTE_ARRAY
+ *     bson.BSON_BINARY_SUBTYPE_UUID
+ *     bson.BSON_BINARY_SUBTYPE_MD5
+ *     bson.BSON_BINARY_SUBTYPE_USER_DEFINED
+ *     doc.buffer.toObject(bson.BSON_BINARY_SUBTYPE_USER_DEFINED);
+ *
+ * @see bsonspec https://bsonspec.org/#/specification
+ * @param {Hex} [subtype]
+ * @return {Binary}
+ * @api public
+ * @method toObject
+ * @memberOf MongooseBuffer
+ */
+
+MongooseBuffer.mixin.toObject = function(options) {
+  const subtype = typeof options === 'number'
+    ? options
+    : (this._subtype || 0);
+  return new Binary(Buffer.from(this), subtype);
+};
+
+MongooseBuffer.mixin.$toObject = MongooseBuffer.mixin.toObject;
+
+/**
+ * Converts this buffer for storage in MongoDB, including subtype
+ *
+ * @return {Binary}
+ * @api public
+ * @method toBSON
+ * @memberOf MongooseBuffer
+ */
+
+MongooseBuffer.mixin.toBSON = function() {
+  return new Binary(this, this._subtype || 0);
+};
+
+/**
+ * Determines if this buffer is equals to `other` buffer
+ *
+ * @param {Buffer} other
+ * @return {Boolean}
+ * @method equals
+ * @memberOf MongooseBuffer
+ */
+
+MongooseBuffer.mixin.equals = function(other) {
+  if (!Buffer.isBuffer(other)) {
+    return false;
+  }
+
+  if (this.length !== other.length) {
+    return false;
+  }
+
+  for (let i = 0; i < this.length; ++i) {
+    if (this[i] !== other[i]) {
+      return false;
+    }
+  }
+
+  return true;
+};
+
+/**
+ * Sets the subtype option and marks the buffer modified.
+ *
+ * #### SubTypes:
+ *
+ *     const bson = require('bson')
+ *     bson.BSON_BINARY_SUBTYPE_DEFAULT
+ *     bson.BSON_BINARY_SUBTYPE_FUNCTION
+ *     bson.BSON_BINARY_SUBTYPE_BYTE_ARRAY
+ *     bson.BSON_BINARY_SUBTYPE_UUID
+ *     bson.BSON_BINARY_SUBTYPE_MD5
+ *     bson.BSON_BINARY_SUBTYPE_USER_DEFINED
+ *
+ *     doc.buffer.subtype(bson.BSON_BINARY_SUBTYPE_UUID);
+ *
+ * @see bsonspec https://bsonspec.org/#/specification
+ * @param {Hex} subtype
+ * @api public
+ * @method subtype
+ * @memberOf MongooseBuffer
+ */
+
+MongooseBuffer.mixin.subtype = function(subtype) {
+  if (typeof subtype !== 'number') {
+    throw new TypeError('Invalid subtype. Expected a number');
+  }
+
+  if (this._subtype !== subtype) {
+    this._markModified();
+  }
+
+  this._subtype = subtype;
+};
+
+/*!
+ * Module exports.
+ */
+
+MongooseBuffer.Binary = Binary;
+
+module.exports = MongooseBuffer;
diff --git a/backend/node_modules/mongoose/lib/types/decimal128.js b/backend/node_modules/mongoose/lib/types/decimal128.js
new file mode 100644
index 0000000..1250b41
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/types/decimal128.js
@@ -0,0 +1,13 @@
+/**
+ * Decimal128 type constructor
+ *
+ * #### Example:
+ *
+ *     const id = new mongoose.Types.Decimal128('3.1415');
+ *
+ * @constructor Decimal128
+ */
+
+'use strict';
+
+module.exports = require('bson').Decimal128;
diff --git a/backend/node_modules/mongoose/lib/types/documentArray/index.js b/backend/node_modules/mongoose/lib/types/documentArray/index.js
new file mode 100644
index 0000000..863d40a
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/types/documentArray/index.js
@@ -0,0 +1,118 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const ArrayMethods = require('../array/methods');
+const DocumentArrayMethods = require('./methods');
+const Document = require('../../document');
+
+const arrayAtomicsSymbol = require('../../helpers/symbols').arrayAtomicsSymbol;
+const arrayAtomicsBackupSymbol = require('../../helpers/symbols').arrayAtomicsBackupSymbol;
+const arrayParentSymbol = require('../../helpers/symbols').arrayParentSymbol;
+const arrayPathSymbol = require('../../helpers/symbols').arrayPathSymbol;
+const arraySchemaSymbol = require('../../helpers/symbols').arraySchemaSymbol;
+
+const _basePush = Array.prototype.push;
+const numberRE = /^\d+$/;
+/**
+ * DocumentArray constructor
+ *
+ * @param {Array} values
+ * @param {String} path the path to this array
+ * @param {Document} doc parent document
+ * @api private
+ * @return {MongooseDocumentArray}
+ * @inherits MongooseArray
+ * @see https://bit.ly/f6CnZU
+ */
+
+function MongooseDocumentArray(values, path, doc, schematype) {
+  const __array = [];
+
+  const internals = {
+    [arrayAtomicsSymbol]: {},
+    [arrayAtomicsBackupSymbol]: void 0,
+    [arrayPathSymbol]: path,
+    [arraySchemaSymbol]: void 0,
+    [arrayParentSymbol]: void 0
+  };
+
+  if (Array.isArray(values)) {
+    if (values[arrayPathSymbol] === path &&
+        values[arrayParentSymbol] === doc) {
+      internals[arrayAtomicsSymbol] = Object.assign({}, values[arrayAtomicsSymbol]);
+    }
+    values.forEach(v => {
+      _basePush.call(__array, v);
+    });
+  }
+  internals[arrayPathSymbol] = path;
+  internals.__array = __array;
+
+  // Because doc comes from the context of another function, doc === global
+  // can happen if there was a null somewhere up the chain (see #3020 && #3034)
+  // RB Jun 17, 2015 updated to check for presence of expected paths instead
+  // to make more proof against unusual node environments
+  if (doc && doc instanceof Document) {
+    internals[arrayParentSymbol] = doc;
+    internals[arraySchemaSymbol] = doc.$__schema.path(path);
+
+    // `schema.path()` doesn't drill into nested arrays properly yet, see
+    // gh-6398, gh-6602. This is a workaround because nested arrays are
+    // always plain non-document arrays, so once you get to a document array
+    // nesting is done. Matryoshka code.
+    while (internals[arraySchemaSymbol] != null &&
+        internals[arraySchemaSymbol].$isMongooseArray &&
+        !internals[arraySchemaSymbol].$isMongooseDocumentArray) {
+      internals[arraySchemaSymbol] = internals[arraySchemaSymbol].casterConstructor;
+    }
+  }
+
+  const proxy = new Proxy(__array, {
+    get: function(target, prop) {
+      if (prop === 'isMongooseArray' ||
+          prop === 'isMongooseArrayProxy' ||
+          prop === 'isMongooseDocumentArray' ||
+          prop === 'isMongooseDocumentArrayProxy') {
+        return true;
+      }
+      if (internals.hasOwnProperty(prop)) {
+        return internals[prop];
+      }
+      if (DocumentArrayMethods.hasOwnProperty(prop)) {
+        return DocumentArrayMethods[prop];
+      }
+      if (schematype && schematype.virtuals && schematype.virtuals.hasOwnProperty(prop)) {
+        return schematype.virtuals[prop].applyGetters(undefined, target);
+      }
+      if (ArrayMethods.hasOwnProperty(prop)) {
+        return ArrayMethods[prop];
+      }
+
+      return __array[prop];
+    },
+    set: function(target, prop, value) {
+      if (typeof prop === 'string' && numberRE.test(prop)) {
+        DocumentArrayMethods.set.call(proxy, prop, value, false);
+      } else if (internals.hasOwnProperty(prop)) {
+        internals[prop] = value;
+      } else if (schematype && schematype.virtuals && schematype.virtuals.hasOwnProperty(prop)) {
+        schematype.virtuals[prop].applySetters(value, target);
+      } else {
+        __array[prop] = value;
+      }
+
+      return true;
+    }
+  });
+
+  return proxy;
+}
+
+/*!
+ * Module exports.
+ */
+
+module.exports = MongooseDocumentArray;
diff --git a/backend/node_modules/mongoose/lib/types/documentArray/isMongooseDocumentArray.js b/backend/node_modules/mongoose/lib/types/documentArray/isMongooseDocumentArray.js
new file mode 100644
index 0000000..6e6a169
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/types/documentArray/isMongooseDocumentArray.js
@@ -0,0 +1,5 @@
+'use strict';
+
+exports.isMongooseDocumentArray = function(mongooseDocumentArray) {
+  return Array.isArray(mongooseDocumentArray) && mongooseDocumentArray.isMongooseDocumentArray;
+};
diff --git a/backend/node_modules/mongoose/lib/types/documentArray/methods/index.js b/backend/node_modules/mongoose/lib/types/documentArray/methods/index.js
new file mode 100644
index 0000000..00b47c4
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/types/documentArray/methods/index.js
@@ -0,0 +1,394 @@
+'use strict';
+
+const ArrayMethods = require('../../array/methods');
+const Document = require('../../../document');
+const castObjectId = require('../../../cast/objectid');
+const getDiscriminatorByValue = require('../../../helpers/discriminator/getDiscriminatorByValue');
+const internalToObjectOptions = require('../../../options').internalToObjectOptions;
+const utils = require('../../../utils');
+const isBsonType = require('../../../helpers/isBsonType');
+
+const arrayParentSymbol = require('../../../helpers/symbols').arrayParentSymbol;
+const arrayPathSymbol = require('../../../helpers/symbols').arrayPathSymbol;
+const arraySchemaSymbol = require('../../../helpers/symbols').arraySchemaSymbol;
+const documentArrayParent = require('../../../helpers/symbols').documentArrayParent;
+
+const _baseToString = Array.prototype.toString;
+
+const methods = {
+  /*!
+   * ignore
+   */
+
+  toBSON() {
+    return this.toObject(internalToObjectOptions);
+  },
+
+  toString() {
+    return _baseToString.call(this.__array.map(subdoc => {
+      if (subdoc != null && subdoc.$__ != null) {
+        return subdoc.toString();
+      }
+      return subdoc;
+    }));
+  },
+
+  /*!
+   * ignore
+   */
+
+  getArrayParent() {
+    return this[arrayParentSymbol];
+  },
+
+  /**
+   * Overrides MongooseArray#cast
+   *
+   * @method _cast
+   * @api private
+   * @memberOf MongooseDocumentArray
+   */
+
+  _cast(value, index, options) {
+    if (this[arraySchemaSymbol] == null) {
+      return value;
+    }
+    let Constructor = this[arraySchemaSymbol].casterConstructor;
+    const isInstance = Constructor.$isMongooseDocumentArray ?
+      utils.isMongooseDocumentArray(value) :
+      value instanceof Constructor;
+    if (isInstance ||
+        // Hack re: #5001, see #5005
+        (value && value.constructor && value.constructor.baseCasterConstructor === Constructor)) {
+      if (!(value[documentArrayParent] && value.__parentArray)) {
+        // value may have been created using array.create()
+        value[documentArrayParent] = this[arrayParentSymbol];
+        value.__parentArray = this;
+      }
+      value.$setIndex(index);
+      return value;
+    }
+
+    if (value === undefined || value === null) {
+      return null;
+    }
+
+    // handle cast('string') or cast(ObjectId) etc.
+    // only objects are permitted so we can safely assume that
+    // non-objects are to be interpreted as _id
+    if (Buffer.isBuffer(value) ||
+        isBsonType(value, 'ObjectId') || !utils.isObject(value)) {
+      value = { _id: value };
+    }
+
+    if (value &&
+        Constructor.discriminators &&
+        Constructor.schema &&
+        Constructor.schema.options &&
+        Constructor.schema.options.discriminatorKey) {
+      if (typeof value[Constructor.schema.options.discriminatorKey] === 'string' &&
+          Constructor.discriminators[value[Constructor.schema.options.discriminatorKey]]) {
+        Constructor = Constructor.discriminators[value[Constructor.schema.options.discriminatorKey]];
+      } else {
+        const constructorByValue = getDiscriminatorByValue(Constructor.discriminators, value[Constructor.schema.options.discriminatorKey]);
+        if (constructorByValue) {
+          Constructor = constructorByValue;
+        }
+      }
+    }
+
+    if (Constructor.$isMongooseDocumentArray) {
+      return Constructor.cast(value, this, undefined, undefined, index);
+    }
+    const ret = new Constructor(value, this, options, undefined, index);
+    ret.isNew = true;
+    return ret;
+  },
+
+  /**
+   * Searches array items for the first document with a matching _id.
+   *
+   * #### Example:
+   *
+   *     const embeddedDoc = m.array.id(some_id);
+   *
+   * @return {EmbeddedDocument|null} the subdocument or null if not found.
+   * @param {ObjectId|String|Number|Buffer} id
+   * @TODO cast to the _id based on schema for proper comparison
+   * @method id
+   * @api public
+   * @memberOf MongooseDocumentArray
+   */
+
+  id(id) {
+    let casted;
+    let sid;
+    let _id;
+
+    try {
+      casted = castObjectId(id).toString();
+    } catch (e) {
+      casted = null;
+    }
+
+    for (const val of this) {
+      if (!val) {
+        continue;
+      }
+
+      _id = val.get('_id');
+
+      if (_id === null || typeof _id === 'undefined') {
+        continue;
+      } else if (_id instanceof Document) {
+        sid || (sid = String(id));
+        if (sid == _id._id) {
+          return val;
+        }
+      } else if (!isBsonType(id, 'ObjectId') && !isBsonType(_id, 'ObjectId')) {
+        if (id == _id || utils.deepEqual(id, _id)) {
+          return val;
+        }
+      } else if (casted == _id) {
+        return val;
+      }
+    }
+
+    return null;
+  },
+
+  /**
+   * Returns a native js Array of plain js objects
+   *
+   * #### Note:
+   *
+   * _Each sub-document is converted to a plain object by calling its `#toObject` method._
+   *
+   * @param {Object} [options] optional options to pass to each documents `toObject` method call during conversion
+   * @return {Array}
+   * @method toObject
+   * @api public
+   * @memberOf MongooseDocumentArray
+   */
+
+  toObject(options) {
+    // `[].concat` coerces the return value into a vanilla JS array, rather
+    // than a Mongoose array.
+    return [].concat(this.map(function(doc) {
+      if (doc == null) {
+        return null;
+      }
+      if (typeof doc.toObject !== 'function') {
+        return doc;
+      }
+      return doc.toObject(options);
+    }));
+  },
+
+  $toObject() {
+    return this.constructor.prototype.toObject.apply(this, arguments);
+  },
+
+  /**
+   * Wraps [`Array#push`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/push) with proper change tracking.
+   *
+   * @param {...Object} [args]
+   * @api public
+   * @method push
+   * @memberOf MongooseDocumentArray
+   */
+
+  push() {
+    const ret = ArrayMethods.push.apply(this, arguments);
+
+    _updateParentPopulated(this);
+
+    return ret;
+  },
+
+  /**
+   * Pulls items from the array atomically.
+   *
+   * @param {...Object} [args]
+   * @api public
+   * @method pull
+   * @memberOf MongooseDocumentArray
+   */
+
+  pull() {
+    const ret = ArrayMethods.pull.apply(this, arguments);
+
+    _updateParentPopulated(this);
+
+    return ret;
+  },
+
+  /**
+   * Wraps [`Array#shift`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/unshift) with proper change tracking.
+   * @api private
+   */
+
+  shift() {
+    const ret = ArrayMethods.shift.apply(this, arguments);
+
+    _updateParentPopulated(this);
+
+    return ret;
+  },
+
+  /**
+   * Wraps [`Array#splice`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/splice) with proper change tracking and casting.
+   * @api private
+   */
+
+  splice() {
+    const ret = ArrayMethods.splice.apply(this, arguments);
+
+    _updateParentPopulated(this);
+
+    return ret;
+  },
+
+  /**
+   * Helper for console.log
+   *
+   * @method inspect
+   * @api public
+   * @memberOf MongooseDocumentArray
+   */
+
+  inspect() {
+    return this.toObject();
+  },
+
+  /**
+   * Creates a subdocument casted to this schema.
+   *
+   * This is the same subdocument constructor used for casting.
+   *
+   * @param {Object} obj the value to cast to this arrays SubDocument schema
+   * @method create
+   * @api public
+   * @memberOf MongooseDocumentArray
+   */
+
+  create(obj) {
+    let Constructor = this[arraySchemaSymbol].casterConstructor;
+    if (obj &&
+        Constructor.discriminators &&
+        Constructor.schema &&
+        Constructor.schema.options &&
+        Constructor.schema.options.discriminatorKey) {
+      if (typeof obj[Constructor.schema.options.discriminatorKey] === 'string' &&
+          Constructor.discriminators[obj[Constructor.schema.options.discriminatorKey]]) {
+        Constructor = Constructor.discriminators[obj[Constructor.schema.options.discriminatorKey]];
+      } else {
+        const constructorByValue = getDiscriminatorByValue(Constructor.discriminators, obj[Constructor.schema.options.discriminatorKey]);
+        if (constructorByValue) {
+          Constructor = constructorByValue;
+        }
+      }
+    }
+
+    return new Constructor(obj, this);
+  },
+
+  /*!
+   * ignore
+   */
+
+  notify(event) {
+    const _this = this;
+    return function notify(val, _arr) {
+      _arr = _arr || _this;
+      let i = _arr.length;
+      while (i--) {
+        if (_arr[i] == null) {
+          continue;
+        }
+        switch (event) {
+          // only swap for save event for now, we may change this to all event types later
+          case 'save':
+            val = _this[i];
+            break;
+          default:
+            // NO-OP
+            break;
+        }
+
+        if (utils.isMongooseArray(_arr[i])) {
+          notify(val, _arr[i]);
+        } else if (_arr[i]) {
+          _arr[i].emit(event, val);
+        }
+      }
+    };
+  },
+
+  set(i, val, skipModified) {
+    const arr = this.__array;
+    if (skipModified) {
+      arr[i] = val;
+      return this;
+    }
+    const value = methods._cast.call(this, val, i);
+    methods._markModified.call(this, i);
+    arr[i] = value;
+    return this;
+  },
+
+  _markModified(elem, embeddedPath) {
+    const parent = this[arrayParentSymbol];
+    let dirtyPath;
+
+    if (parent) {
+      dirtyPath = this[arrayPathSymbol];
+
+      if (arguments.length) {
+        if (embeddedPath != null) {
+          // an embedded doc bubbled up the change
+          const index = elem.__index;
+          dirtyPath = dirtyPath + '.' + index + '.' + embeddedPath;
+        } else {
+          // directly set an index
+          dirtyPath = dirtyPath + '.' + elem;
+        }
+      }
+
+      if (dirtyPath != null && dirtyPath.endsWith('.$')) {
+        return this;
+      }
+
+      parent.markModified(dirtyPath, arguments.length !== 0 ? elem : parent);
+    }
+
+    return this;
+  }
+};
+
+module.exports = methods;
+
+/**
+ * If this is a document array, each element may contain single
+ * populated paths, so we need to modify the top-level document's
+ * populated cache. See gh-8247, gh-8265.
+ * @param {Array} arr
+ * @api private
+ */
+
+function _updateParentPopulated(arr) {
+  const parent = arr[arrayParentSymbol];
+  if (!parent || parent.$__.populated == null) return;
+
+  const populatedPaths = Object.keys(parent.$__.populated).
+    filter(p => p.startsWith(arr[arrayPathSymbol] + '.'));
+
+  for (const path of populatedPaths) {
+    const remnant = path.slice((arr[arrayPathSymbol] + '.').length);
+    if (!Array.isArray(parent.$__.populated[path].value)) {
+      continue;
+    }
+
+    parent.$__.populated[path].value = arr.map(val => val.$populated(remnant));
+  }
+}
diff --git a/backend/node_modules/mongoose/lib/types/index.js b/backend/node_modules/mongoose/lib/types/index.js
new file mode 100644
index 0000000..d234f6b
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/types/index.js
@@ -0,0 +1,22 @@
+
+/*!
+ * Module exports.
+ */
+
+'use strict';
+
+exports.Array = require('./array');
+exports.Buffer = require('./buffer');
+
+exports.Document = // @deprecate
+exports.Embedded = require('./arraySubdocument');
+
+exports.DocumentArray = require('./documentArray');
+exports.Decimal128 = require('./decimal128');
+exports.ObjectId = require('./objectid');
+
+exports.Map = require('./map');
+
+exports.Subdocument = require('./subdocument');
+
+exports.UUID = require('./uuid');
diff --git a/backend/node_modules/mongoose/lib/types/map.js b/backend/node_modules/mongoose/lib/types/map.js
new file mode 100644
index 0000000..d3043be
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/types/map.js
@@ -0,0 +1,368 @@
+'use strict';
+
+const Mixed = require('../schema/mixed');
+const MongooseError = require('../error/mongooseError');
+const clone = require('../helpers/clone');
+const deepEqual = require('../utils').deepEqual;
+const getConstructorName = require('../helpers/getConstructorName');
+const handleSpreadDoc = require('../helpers/document/handleSpreadDoc');
+const util = require('util');
+const specialProperties = require('../helpers/specialProperties');
+const isBsonType = require('../helpers/isBsonType');
+const cleanModifiedSubpaths = require('../helpers/document/cleanModifiedSubpaths');
+
+const populateModelSymbol = require('../helpers/symbols').populateModelSymbol;
+
+/*!
+ * ignore
+ */
+
+class MongooseMap extends Map {
+  constructor(v, path, doc, schemaType) {
+    if (getConstructorName(v) === 'Object') {
+      v = Object.keys(v).reduce((arr, key) => arr.concat([[key, v[key]]]), []);
+    }
+    super(v);
+    this.$__parent = doc != null && doc.$__ != null ? doc : null;
+    this.$__path = path;
+    this.$__schemaType = schemaType == null ? new Mixed(path) : schemaType;
+
+    this.$__runDeferred();
+  }
+
+  $init(key, value) {
+    checkValidKey(key);
+
+    super.set(key, value);
+
+    if (value != null && value.$isSingleNested) {
+      value.$basePath = this.$__path + '.' + key;
+    }
+  }
+
+  $__set(key, value) {
+    super.set(key, value);
+  }
+
+  /**
+   * Overwrites native Map's `get()` function to support Mongoose getters.
+   *
+   * @api public
+   * @method get
+   * @memberOf Map
+   */
+
+  get(key, options) {
+    if (isBsonType(key, 'ObjectId')) {
+      key = key.toString();
+    }
+
+    options = options || {};
+    if (options.getters === false) {
+      return super.get(key);
+    }
+    return this.$__schemaType.applyGetters(super.get(key), this.$__parent);
+  }
+
+  /**
+   * Overwrites native Map's `set()` function to support setters, `populate()`,
+   * and change tracking. Note that Mongoose maps _only_ support strings and
+   * ObjectIds as keys.
+   *
+   * Keys also cannot:
+   * - be named after special properties `prototype`, `constructor`, and `__proto__`
+   * - start with a dollar sign (`$`)
+   * - contain any dots (`.`)
+   *
+   * #### Example:
+   *
+   *     doc.myMap.set('test', 42); // works
+   *     doc.myMap.set({ obj: 42 }, 42); // Throws "Mongoose maps only support string keys"
+   *     doc.myMap.set(10, 42); // Throws "Mongoose maps only support string keys"
+   *     doc.myMap.set("$test", 42); // Throws "Mongoose maps do not support keys that start with "$", got "$test""
+   *
+   * @api public
+   * @method set
+   * @memberOf Map
+   */
+
+  set(key, value) {
+    if (isBsonType(key, 'ObjectId')) {
+      key = key.toString();
+    }
+
+    checkValidKey(key);
+    value = handleSpreadDoc(value);
+
+    // Weird, but because you can't assign to `this` before calling `super()`
+    // you can't get access to `$__schemaType` to cast in the initial call to
+    // `set()` from the `super()` constructor.
+
+    if (this.$__schemaType == null) {
+      this.$__deferred = this.$__deferred || [];
+      this.$__deferred.push({ key: key, value: value });
+      return;
+    }
+
+    let _fullPath;
+    const parent = this.$__parent;
+    const populated = parent != null && parent.$__ && parent.$__.populated ?
+      parent.$populated(fullPath.call(this), true) || parent.$populated(this.$__path, true) :
+      null;
+    const priorVal = this.get(key);
+
+    if (populated != null) {
+      if (this.$__schemaType.$isSingleNested) {
+        throw new MongooseError(
+          'Cannot manually populate single nested subdoc underneath Map ' +
+          `at path "${this.$__path}". Try using an array instead of a Map.`
+        );
+      }
+      if (Array.isArray(value) && this.$__schemaType.$isMongooseArray) {
+        value = value.map(v => {
+          if (v.$__ == null) {
+            v = new populated.options[populateModelSymbol](v);
+          }
+          // Doesn't support single nested "in-place" populate
+          v.$__.wasPopulated = { value: v._doc._id };
+          return v;
+        });
+      } else if (value != null) {
+        if (value.$__ == null) {
+          value = new populated.options[populateModelSymbol](value);
+        }
+        // Doesn't support single nested "in-place" populate
+        value.$__.wasPopulated = { value: value._doc._id };
+      }
+    } else {
+      try {
+        const options = this.$__schemaType.$isMongooseDocumentArray || this.$__schemaType.$isSingleNested ?
+          { path: fullPath.call(this) } :
+          null;
+        value = this.$__schemaType.applySetters(
+          value,
+          this.$__parent,
+          false,
+          this.get(key),
+          options
+        );
+      } catch (error) {
+        if (this.$__parent != null && this.$__parent.$__ != null) {
+          this.$__parent.invalidate(fullPath.call(this), error);
+          return;
+        }
+        throw error;
+      }
+    }
+
+    super.set(key, value);
+
+    if (parent != null && parent.$__ != null && !deepEqual(value, priorVal)) {
+      const path = fullPath.call(this);
+      parent.markModified(path);
+      // If overwriting the full document array or subdoc, make sure to clean up any paths that were modified
+      // before re: #15108
+      if (this.$__schemaType.$isMongooseDocumentArray || this.$__schemaType.$isSingleNested) {
+        cleanModifiedSubpaths(parent, path);
+      }
+    }
+
+    // Delay calculating full path unless absolutely necessary, because string
+    // concatenation is a bottleneck re: #13171
+    function fullPath() {
+      if (_fullPath) {
+        return _fullPath;
+      }
+      _fullPath = this.$__path + '.' + key;
+      return _fullPath;
+    }
+  }
+
+  /**
+   * Overwrites native Map's `clear()` function to support change tracking.
+   *
+   * @api public
+   * @method clear
+   * @memberOf Map
+   */
+
+  clear() {
+    super.clear();
+    const parent = this.$__parent;
+    if (parent != null) {
+      parent.markModified(this.$__path);
+    }
+  }
+
+  /**
+   * Overwrites native Map's `delete()` function to support change tracking.
+   *
+   * @api public
+   * @method delete
+   * @memberOf Map
+   */
+
+  delete(key) {
+    if (isBsonType(key, 'ObjectId')) {
+      key = key.toString();
+    }
+
+    this.set(key, undefined);
+    return super.delete(key);
+  }
+
+  /**
+   * Converts this map to a native JavaScript Map so the MongoDB driver can serialize it.
+   *
+   * @api public
+   * @method toBSON
+   * @memberOf Map
+   */
+
+  toBSON() {
+    return new Map(this);
+  }
+
+  toObject(options) {
+    if (options && options.flattenMaps) {
+      const ret = {};
+      const keys = this.keys();
+      for (const key of keys) {
+        ret[key] = clone(this.get(key), options);
+      }
+      return ret;
+    }
+
+    return new Map(this);
+  }
+
+  $toObject() {
+    return this.constructor.prototype.toObject.apply(this, arguments);
+  }
+
+  /**
+   * Converts this map to a native JavaScript Map for `JSON.stringify()`. Set
+   * the `flattenMaps` option to convert this map to a POJO instead.
+   *
+   * #### Example:
+   *
+   *     doc.myMap.toJSON() instanceof Map; // true
+   *     doc.myMap.toJSON({ flattenMaps: true }) instanceof Map; // false
+   *
+   * @api public
+   * @method toJSON
+   * @param {Object} [options]
+   * @param {Boolean} [options.flattenMaps=false] set to `true` to convert the map to a POJO rather than a native JavaScript map
+   * @memberOf Map
+   */
+
+  toJSON(options) {
+    if (typeof (options && options.flattenMaps) === 'boolean' ? options.flattenMaps : true) {
+      const ret = {};
+      const keys = this.keys();
+      for (const key of keys) {
+        ret[key] = clone(this.get(key), options);
+      }
+      return ret;
+    }
+
+    return new Map(this);
+  }
+
+  inspect() {
+    return new Map(this);
+  }
+
+  $__runDeferred() {
+    if (!this.$__deferred) {
+      return;
+    }
+
+    for (const keyValueObject of this.$__deferred) {
+      this.set(keyValueObject.key, keyValueObject.value);
+    }
+
+    this.$__deferred = null;
+  }
+}
+
+if (util.inspect.custom) {
+  Object.defineProperty(MongooseMap.prototype, util.inspect.custom, {
+    enumerable: false,
+    writable: false,
+    configurable: false,
+    value: MongooseMap.prototype.inspect
+  });
+}
+
+Object.defineProperty(MongooseMap.prototype, '$__set', {
+  enumerable: false,
+  writable: true,
+  configurable: false
+});
+
+Object.defineProperty(MongooseMap.prototype, '$__parent', {
+  enumerable: false,
+  writable: true,
+  configurable: false
+});
+
+Object.defineProperty(MongooseMap.prototype, '$__path', {
+  enumerable: false,
+  writable: true,
+  configurable: false
+});
+
+Object.defineProperty(MongooseMap.prototype, '$__schemaType', {
+  enumerable: false,
+  writable: true,
+  configurable: false
+});
+
+/**
+ * Set to `true` for all Mongoose map instances
+ *
+ * @api public
+ * @property $isMongooseMap
+ * @memberOf MongooseMap
+ * @instance
+ */
+
+Object.defineProperty(MongooseMap.prototype, '$isMongooseMap', {
+  enumerable: false,
+  writable: false,
+  configurable: false,
+  value: true
+});
+
+Object.defineProperty(MongooseMap.prototype, '$__deferredCalls', {
+  enumerable: false,
+  writable: false,
+  configurable: false,
+  value: true
+});
+
+/**
+ * Since maps are stored as objects under the hood, keys must be strings
+ * and can't contain any invalid characters
+ * @param {String} key
+ * @api private
+ */
+
+function checkValidKey(key) {
+  const keyType = typeof key;
+  if (keyType !== 'string') {
+    throw new TypeError(`Mongoose maps only support string keys, got ${keyType}`);
+  }
+  if (key.startsWith('$')) {
+    throw new Error(`Mongoose maps do not support keys that start with "$", got "${key}"`);
+  }
+  if (key.includes('.')) {
+    throw new Error(`Mongoose maps do not support keys that contain ".", got "${key}"`);
+  }
+  if (specialProperties.has(key)) {
+    throw new Error(`Mongoose maps do not support reserved key name "${key}"`);
+  }
+}
+
+module.exports = MongooseMap;
diff --git a/backend/node_modules/mongoose/lib/types/objectid.js b/backend/node_modules/mongoose/lib/types/objectid.js
new file mode 100644
index 0000000..d38c223
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/types/objectid.js
@@ -0,0 +1,41 @@
+/**
+ * ObjectId type constructor
+ *
+ * #### Example:
+ *
+ *     const id = new mongoose.Types.ObjectId;
+ *
+ * @constructor ObjectId
+ */
+
+'use strict';
+
+const ObjectId = require('bson').ObjectId;
+const objectIdSymbol = require('../helpers/symbols').objectIdSymbol;
+
+/**
+ * Getter for convenience with populate, see gh-6115
+ * @api private
+ */
+
+Object.defineProperty(ObjectId.prototype, '_id', {
+  enumerable: false,
+  configurable: true,
+  get: function() {
+    return this;
+  }
+});
+
+/*!
+ * Convenience `valueOf()` to allow comparing ObjectIds using double equals re: gh-7299
+ */
+
+if (!ObjectId.prototype.hasOwnProperty('valueOf')) {
+  ObjectId.prototype.valueOf = function objectIdValueOf() {
+    return this.toString();
+  };
+}
+
+ObjectId.prototype[objectIdSymbol] = true;
+
+module.exports = ObjectId;
diff --git a/backend/node_modules/mongoose/lib/types/subdocument.js b/backend/node_modules/mongoose/lib/types/subdocument.js
new file mode 100644
index 0000000..b1984d0
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/types/subdocument.js
@@ -0,0 +1,435 @@
+'use strict';
+
+const Document = require('../document');
+const immediate = require('../helpers/immediate');
+const internalToObjectOptions = require('../options').internalToObjectOptions;
+const util = require('util');
+const utils = require('../utils');
+
+module.exports = Subdocument;
+
+/**
+ * Subdocument constructor.
+ *
+ * @inherits Document
+ * @api private
+ */
+
+function Subdocument(value, fields, parent, skipId, options) {
+  if (typeof skipId === 'object' && skipId != null && options == null) {
+    options = skipId;
+    skipId = undefined;
+  }
+  if (parent != null) {
+    // If setting a nested path, should copy isNew from parent re: gh-7048
+    const parentOptions = { isNew: parent.isNew };
+    if ('defaults' in parent.$__) {
+      parentOptions.defaults = parent.$__.defaults;
+    }
+    options = Object.assign(parentOptions, options);
+  }
+  if (options != null && options.path != null) {
+    this.$basePath = options.path;
+  }
+  Document.call(this, value, fields, skipId, options);
+
+  delete this.$__.priorDoc;
+}
+
+Subdocument.prototype = Object.create(Document.prototype);
+
+Object.defineProperty(Subdocument.prototype, '$isSubdocument', {
+  configurable: false,
+  writable: false,
+  value: true
+});
+
+Object.defineProperty(Subdocument.prototype, '$isSingleNested', {
+  configurable: false,
+  writable: false,
+  value: true
+});
+
+/*!
+ * ignore
+ */
+
+Subdocument.prototype.toBSON = function() {
+  return this.toObject(internalToObjectOptions);
+};
+
+/**
+ * Used as a stub for middleware
+ *
+ * #### Note:
+ *
+ * _This is a no-op. Does not actually save the doc to the db._
+ *
+ * @param {Function} [fn]
+ * @return {Promise} resolved Promise
+ * @api private
+ */
+
+Subdocument.prototype.save = async function save(options) {
+  options = options || {};
+
+  if (!options.suppressWarning) {
+    utils.warn('mongoose: calling `save()` on a subdoc does **not** save ' +
+      'the document to MongoDB, it only runs save middleware. ' +
+      'Use `subdoc.save({ suppressWarning: true })` to hide this warning ' +
+      'if you\'re sure this behavior is right for your app.');
+  }
+
+  return new Promise((resolve, reject) => {
+    this.$__save((err) => {
+      if (err != null) {
+        return reject(err);
+      }
+      resolve(this);
+    });
+  });
+};
+
+/**
+ * Given a path relative to this document, return the path relative
+ * to the top-level document.
+ * @param {String} path
+ * @method $__fullPath
+ * @memberOf Subdocument
+ * @instance
+ * @returns {String}
+ * @api private
+ */
+
+Subdocument.prototype.$__fullPath = function(path) {
+  if (!this.$__.fullPath) {
+    this.ownerDocument();
+  }
+
+  return path ?
+    this.$__.fullPath + '.' + path :
+    this.$__.fullPath;
+};
+
+/**
+ * Given a path relative to this document, return the path relative
+ * to the parent document.
+ * @param {String} p
+ * @returns {String}
+ * @method $__pathRelativeToParent
+ * @memberOf Subdocument
+ * @instance
+ * @api private
+ */
+
+Subdocument.prototype.$__pathRelativeToParent = function(p) {
+  if (p == null) {
+    return this.$basePath;
+  }
+  return [this.$basePath, p].join('.');
+};
+
+/**
+ * Used as a stub for middleware
+ *
+ * #### Note:
+ *
+ * _This is a no-op. Does not actually save the doc to the db._
+ *
+ * @param {Function} [fn]
+ * @method $__save
+ * @api private
+ */
+
+Subdocument.prototype.$__save = function(fn) {
+  return immediate(() => fn(null, this));
+};
+
+/*!
+ * ignore
+ */
+
+Subdocument.prototype.$isValid = function(path) {
+  const parent = this.$parent();
+  const fullPath = this.$__pathRelativeToParent(path);
+  if (parent != null && fullPath != null) {
+    return parent.$isValid(fullPath);
+  }
+  return Document.prototype.$isValid.call(this, path);
+};
+
+/*!
+ * ignore
+ */
+
+Subdocument.prototype.markModified = function(path) {
+  Document.prototype.markModified.call(this, path);
+  const parent = this.$parent();
+  const fullPath = this.$__pathRelativeToParent(path);
+
+  if (parent == null || fullPath == null) {
+    return;
+  }
+
+  const myPath = this.$__pathRelativeToParent().replace(/\.$/, '');
+  if (parent.isDirectModified(myPath) || this.isNew) {
+    return;
+  }
+  this.$__parent.markModified(fullPath, this);
+};
+
+/*!
+ * ignore
+ */
+
+Subdocument.prototype.isModified = function(paths, options, modifiedPaths) {
+  const parent = this.$parent();
+  if (parent != null) {
+    if (Array.isArray(paths) || typeof paths === 'string') {
+      paths = (Array.isArray(paths) ? paths : paths.split(' '));
+      paths = paths.map(p => this.$__pathRelativeToParent(p)).filter(p => p != null);
+    } else if (!paths) {
+      paths = this.$__pathRelativeToParent();
+    }
+
+    return parent.$isModified(paths, options, modifiedPaths);
+  }
+
+  return Document.prototype.isModified.call(this, paths, options, modifiedPaths);
+};
+
+/**
+ * Marks a path as valid, removing existing validation errors.
+ *
+ * @param {String} path the field to mark as valid
+ * @api private
+ * @method $markValid
+ * @memberOf Subdocument
+ */
+
+Subdocument.prototype.$markValid = function(path) {
+  Document.prototype.$markValid.call(this, path);
+  const parent = this.$parent();
+  const fullPath = this.$__pathRelativeToParent(path);
+  if (parent != null && fullPath != null) {
+    parent.$markValid(fullPath);
+  }
+};
+
+/*!
+ * ignore
+ */
+
+Subdocument.prototype.invalidate = function(path, err, val) {
+  Document.prototype.invalidate.call(this, path, err, val);
+
+  const parent = this.$parent();
+  const fullPath = this.$__pathRelativeToParent(path);
+  if (parent != null && fullPath != null) {
+    parent.invalidate(fullPath, err, val);
+  } else if (err.kind === 'cast' || err.name === 'CastError' || fullPath == null) {
+    throw err;
+  }
+
+  return this.ownerDocument().$__.validationError;
+};
+
+/*!
+ * ignore
+ */
+
+Subdocument.prototype.$ignore = function(path) {
+  Document.prototype.$ignore.call(this, path);
+  const parent = this.$parent();
+  const fullPath = this.$__pathRelativeToParent(path);
+  if (parent != null && fullPath != null) {
+    parent.$ignore(fullPath);
+  }
+};
+
+/**
+ * Returns the top level document of this sub-document.
+ *
+ * @return {Document}
+ */
+
+Subdocument.prototype.ownerDocument = function() {
+  if (this.$__.ownerDocument) {
+    return this.$__.ownerDocument;
+  }
+
+  let parent = this; // eslint-disable-line consistent-this
+  const paths = [];
+  const seenDocs = new Set([parent]);
+
+  while (true) {
+    if (typeof parent.$__pathRelativeToParent !== 'function') {
+      break;
+    }
+    paths.unshift(parent.$__pathRelativeToParent(void 0, true));
+    const _parent = parent.$parent();
+    if (_parent == null) {
+      break;
+    }
+    parent = _parent;
+    if (seenDocs.has(parent)) {
+      throw new Error('Infinite subdocument loop: subdoc with _id ' + parent._id + ' is a parent of itself');
+    }
+
+    seenDocs.add(parent);
+  }
+
+  this.$__.fullPath = paths.join('.');
+
+  this.$__.ownerDocument = parent;
+  return this.$__.ownerDocument;
+};
+
+/*!
+ * ignore
+ */
+
+Subdocument.prototype.$__fullPathWithIndexes = function() {
+  let parent = this; // eslint-disable-line consistent-this
+  const paths = [];
+  const seenDocs = new Set([parent]);
+
+  while (true) {
+    if (typeof parent.$__pathRelativeToParent !== 'function') {
+      break;
+    }
+    paths.unshift(parent.$__pathRelativeToParent(void 0, false));
+    const _parent = parent.$parent();
+    if (_parent == null) {
+      break;
+    }
+    parent = _parent;
+    if (seenDocs.has(parent)) {
+      throw new Error('Infinite subdocument loop: subdoc with _id ' + parent._id + ' is a parent of itself');
+    }
+
+    seenDocs.add(parent);
+  }
+
+  return paths.join('.');
+};
+
+/**
+ * Returns this sub-documents parent document.
+ *
+ * @api public
+ */
+
+Subdocument.prototype.parent = function() {
+  return this.$__parent;
+};
+
+/**
+ * Returns this sub-documents parent document.
+ *
+ * @api public
+ * @method $parent
+ */
+
+Subdocument.prototype.$parent = Subdocument.prototype.parent;
+
+/**
+ * no-op for hooks
+ * @param {Function} cb
+ * @method $__deleteOne
+ * @memberOf Subdocument
+ * @instance
+ * @api private
+ */
+
+Subdocument.prototype.$__deleteOne = function(cb) {
+  if (cb == null) {
+    return;
+  }
+  return cb(null, this);
+};
+
+/**
+ * ignore
+ * @method $__removeFromParent
+ * @memberOf Subdocument
+ * @instance
+ * @api private
+ */
+
+Subdocument.prototype.$__removeFromParent = function() {
+  this.$__parent.set(this.$basePath, null);
+};
+
+/**
+ * Null-out this subdoc
+ *
+ * @param {Object} [options]
+ * @param {Function} [callback] optional callback for compatibility with Document.prototype.remove
+ */
+
+Subdocument.prototype.deleteOne = function(options, callback) {
+  if (typeof options === 'function') {
+    callback = options;
+    options = null;
+  }
+  registerRemoveListener(this);
+
+  // If removing entire doc, no need to remove subdoc
+  if (!options || !options.noop) {
+    this.$__removeFromParent();
+
+    const owner = this.ownerDocument();
+    owner.$__.removedSubdocs = owner.$__.removedSubdocs || [];
+    owner.$__.removedSubdocs.push(this);
+  }
+
+  return this.$__deleteOne(callback);
+};
+
+/*!
+ * ignore
+ */
+
+Subdocument.prototype.populate = function() {
+  throw new Error('Mongoose does not support calling populate() on nested ' +
+    'docs. Instead of `doc.nested.populate("path")`, use ' +
+    '`doc.populate("nested.path")`');
+};
+
+/**
+ * Helper for console.log
+ *
+ * @api public
+ */
+
+Subdocument.prototype.inspect = function() {
+  return this.toObject();
+};
+
+if (util.inspect.custom) {
+  // Avoid Node deprecation warning DEP0079
+  Subdocument.prototype[util.inspect.custom] = Subdocument.prototype.inspect;
+}
+
+/**
+ * Registers remove event listeners for triggering
+ * on subdocuments.
+ *
+ * @param {Subdocument} sub
+ * @api private
+ */
+
+function registerRemoveListener(sub) {
+  const owner = sub.ownerDocument();
+
+  function emitRemove() {
+    owner.$removeListener('save', emitRemove);
+    owner.$removeListener('deleteOne', emitRemove);
+    sub.emit('deleteOne', sub);
+    sub.constructor.emit('deleteOne', sub);
+  }
+
+  owner.$on('save', emitRemove);
+  owner.$on('deleteOne', emitRemove);
+}
diff --git a/backend/node_modules/mongoose/lib/types/uuid.js b/backend/node_modules/mongoose/lib/types/uuid.js
new file mode 100644
index 0000000..fc9db85
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/types/uuid.js
@@ -0,0 +1,13 @@
+/**
+ * UUID type constructor
+ *
+ * #### Example:
+ *
+ *     const id = new mongoose.Types.UUID();
+ *
+ * @constructor UUID
+ */
+
+'use strict';
+
+module.exports = require('bson').UUID;
diff --git a/backend/node_modules/mongoose/lib/utils.js b/backend/node_modules/mongoose/lib/utils.js
new file mode 100644
index 0000000..6fc5c33
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/utils.js
@@ -0,0 +1,1027 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const UUID = require('bson').UUID;
+const ms = require('ms');
+const mpath = require('mpath');
+const ObjectId = require('./types/objectid');
+const PopulateOptions = require('./options/populateOptions');
+const clone = require('./helpers/clone');
+const immediate = require('./helpers/immediate');
+const isObject = require('./helpers/isObject');
+const isMongooseArray = require('./types/array/isMongooseArray');
+const isMongooseDocumentArray = require('./types/documentArray/isMongooseDocumentArray');
+const isBsonType = require('./helpers/isBsonType');
+const isPOJO = require('./helpers/isPOJO');
+const getFunctionName = require('./helpers/getFunctionName');
+const isMongooseObject = require('./helpers/isMongooseObject');
+const promiseOrCallback = require('./helpers/promiseOrCallback');
+const schemaMerge = require('./helpers/schema/merge');
+const specialProperties = require('./helpers/specialProperties');
+const { trustedSymbol } = require('./helpers/query/trusted');
+
+let Document;
+
+exports.specialProperties = specialProperties;
+
+exports.isMongooseArray = isMongooseArray.isMongooseArray;
+exports.isMongooseDocumentArray = isMongooseDocumentArray.isMongooseDocumentArray;
+exports.registerMongooseArray = isMongooseArray.registerMongooseArray;
+exports.registerMongooseDocumentArray = isMongooseDocumentArray.registerMongooseDocumentArray;
+
+const oneSpaceRE = /\s/;
+const manySpaceRE = /\s+/;
+
+/**
+ * Produces a collection name from model `name`. By default, just returns
+ * the model name
+ *
+ * @param {String} name a model name
+ * @param {Function} pluralize function that pluralizes the collection name
+ * @return {String} a collection name
+ * @api private
+ */
+
+exports.toCollectionName = function(name, pluralize) {
+  if (name === 'system.profile') {
+    return name;
+  }
+  if (name === 'system.indexes') {
+    return name;
+  }
+  if (typeof pluralize === 'function') {
+    if (typeof name !== 'string') {
+      throw new TypeError('Collection name must be a string');
+    }
+    if (name.length === 0) {
+      throw new TypeError('Collection name cannot be empty');
+    }
+    return pluralize(name);
+  }
+  return name;
+};
+
+/**
+ * Determines if `a` and `b` are deep equal.
+ *
+ * Modified from node/lib/assert.js
+ *
+ * @param {any} a a value to compare to `b`
+ * @param {any} b a value to compare to `a`
+ * @return {Boolean}
+ * @api private
+ */
+
+exports.deepEqual = function deepEqual(a, b) {
+  if (a === b) {
+    return true;
+  }
+
+  if (typeof a !== 'object' || typeof b !== 'object') {
+    return a === b;
+  }
+
+  if (a instanceof Date && b instanceof Date) {
+    return a.getTime() === b.getTime();
+  }
+
+  if ((isBsonType(a, 'ObjectId') && isBsonType(b, 'ObjectId')) ||
+      (isBsonType(a, 'Decimal128') && isBsonType(b, 'Decimal128'))) {
+    return a.toString() === b.toString();
+  }
+
+  if (a instanceof RegExp && b instanceof RegExp) {
+    return a.source === b.source &&
+        a.ignoreCase === b.ignoreCase &&
+        a.multiline === b.multiline &&
+        a.global === b.global &&
+        a.dotAll === b.dotAll &&
+        a.unicode === b.unicode &&
+        a.sticky === b.sticky &&
+        a.hasIndices === b.hasIndices;
+  }
+
+  if (a == null || b == null) {
+    return false;
+  }
+
+  if (a.prototype !== b.prototype) {
+    return false;
+  }
+
+  if (a instanceof Map || b instanceof Map) {
+    if (!(a instanceof Map) || !(b instanceof Map)) {
+      return false;
+    }
+    return deepEqual(Array.from(a.keys()), Array.from(b.keys())) &&
+      deepEqual(Array.from(a.values()), Array.from(b.values()));
+  }
+
+  // Handle MongooseNumbers
+  if (a instanceof Number && b instanceof Number) {
+    return a.valueOf() === b.valueOf();
+  }
+
+  if (Buffer.isBuffer(a)) {
+    return exports.buffer.areEqual(a, b);
+  }
+
+  if (Array.isArray(a) || Array.isArray(b)) {
+    if (!Array.isArray(a) || !Array.isArray(b)) {
+      return false;
+    }
+    const len = a.length;
+    if (len !== b.length) {
+      return false;
+    }
+    for (let i = 0; i < len; ++i) {
+      if (!deepEqual(a[i], b[i])) {
+        return false;
+      }
+    }
+    return true;
+  }
+
+  if (a.$__ != null) {
+    a = a._doc;
+  } else if (isMongooseObject(a)) {
+    a = a.toObject();
+  }
+
+  if (b.$__ != null) {
+    b = b._doc;
+  } else if (isMongooseObject(b)) {
+    b = b.toObject();
+  }
+
+  const ka = Object.keys(a);
+  const kb = Object.keys(b);
+  const kaLength = ka.length;
+
+  // having the same number of owned properties (keys incorporates
+  // hasOwnProperty)
+  if (kaLength !== kb.length) {
+    return false;
+  }
+
+  // ~~~cheap key test
+  for (let i = kaLength - 1; i >= 0; i--) {
+    if (ka[i] !== kb[i]) {
+      return false;
+    }
+  }
+
+  // equivalent values for every corresponding key, and
+  // ~~~possibly expensive deep test
+  for (const key of ka) {
+    if (!deepEqual(a[key], b[key])) {
+      return false;
+    }
+  }
+
+  return true;
+};
+
+/**
+ * Get the last element of an array
+ * @param {Array} arr
+ */
+
+exports.last = function(arr) {
+  if (arr.length > 0) {
+    return arr[arr.length - 1];
+  }
+  return void 0;
+};
+
+/*!
+ * ignore
+ */
+
+exports.promiseOrCallback = promiseOrCallback;
+
+/*!
+ * ignore
+ */
+
+exports.cloneArrays = function cloneArrays(arr) {
+  if (!Array.isArray(arr)) {
+    return arr;
+  }
+
+  return arr.map(el => exports.cloneArrays(el));
+};
+
+/*!
+ * ignore
+ */
+
+exports.omit = function omit(obj, keys) {
+  if (keys == null) {
+    return Object.assign({}, obj);
+  }
+  if (!Array.isArray(keys)) {
+    keys = [keys];
+  }
+
+  const ret = Object.assign({}, obj);
+  for (const key of keys) {
+    delete ret[key];
+  }
+  return ret;
+};
+
+/**
+ * Merges `from` into `to` without overwriting existing properties.
+ *
+ * @param {Object} to
+ * @param {Object} from
+ * @param {Object} [options]
+ * @param {String} [path]
+ * @api private
+ */
+
+exports.merge = function merge(to, from, options, path) {
+  options = options || {};
+
+  const keys = Object.keys(from);
+  let i = 0;
+  const len = keys.length;
+  let key;
+
+  if (from[trustedSymbol]) {
+    to[trustedSymbol] = from[trustedSymbol];
+  }
+
+  path = path || '';
+  const omitNested = options.omitNested || {};
+
+  while (i < len) {
+    key = keys[i++];
+    if (options.omit && options.omit[key]) {
+      continue;
+    }
+    if (omitNested[path]) {
+      continue;
+    }
+    if (specialProperties.has(key)) {
+      continue;
+    }
+    if (to[key] == null) {
+      if (isPOJO(from[key])) {
+        to[key] = { ...from[key] };
+      } else if (Array.isArray(from[key])) {
+        to[key] = [...from[key]];
+      } else {
+        to[key] = from[key];
+      }
+    } else if (exports.isObject(from[key])) {
+      if (!exports.isObject(to[key])) {
+        to[key] = {};
+      }
+      if (from[key] != null) {
+        // Skip merging schemas if we're creating a discriminator schema and
+        // base schema has a given path as a single nested but discriminator schema
+        // has the path as a document array, or vice versa (gh-9534)
+        if (options.isDiscriminatorSchemaMerge &&
+            (from[key].$isSingleNested && to[key].$isMongooseDocumentArray) ||
+            (from[key].$isMongooseDocumentArray && to[key].$isSingleNested)) {
+          continue;
+        } else if (from[key].instanceOfSchema) {
+          if (to[key].instanceOfSchema) {
+            schemaMerge(to[key], from[key].clone(), options.isDiscriminatorSchemaMerge);
+          } else {
+            to[key] = from[key].clone();
+          }
+          continue;
+        } else if (isBsonType(from[key], 'ObjectId')) {
+          to[key] = new ObjectId(from[key]);
+          continue;
+        }
+      }
+      merge(to[key], from[key], options, path ? path + '.' + key : key);
+    } else if (options.overwrite) {
+      to[key] = from[key];
+    }
+  }
+
+  return to;
+};
+
+/**
+ * Applies toObject recursively.
+ *
+ * @param {Document|Array|Object} obj
+ * @return {Object}
+ * @api private
+ */
+
+exports.toObject = function toObject(obj) {
+  Document || (Document = require('./document'));
+  let ret;
+
+  if (obj == null) {
+    return obj;
+  }
+
+  if (obj instanceof Document) {
+    return obj.toObject();
+  }
+
+  if (Array.isArray(obj)) {
+    ret = [];
+
+    for (const doc of obj) {
+      ret.push(toObject(doc));
+    }
+
+    return ret;
+  }
+
+  if (exports.isPOJO(obj)) {
+    ret = {};
+
+    if (obj[trustedSymbol]) {
+      ret[trustedSymbol] = obj[trustedSymbol];
+    }
+
+    for (const k of Object.keys(obj)) {
+      if (specialProperties.has(k)) {
+        continue;
+      }
+      ret[k] = toObject(obj[k]);
+    }
+
+    return ret;
+  }
+
+  return obj;
+};
+
+exports.isObject = isObject;
+
+/**
+ * Determines if `arg` is a plain old JavaScript object (POJO). Specifically,
+ * `arg` must be an object but not an instance of any special class, like String,
+ * ObjectId, etc.
+ *
+ * `Object.getPrototypeOf()` is part of ES5: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/getPrototypeOf
+ *
+ * @param {Object|Array|String|Function|RegExp|any} arg
+ * @api private
+ * @return {Boolean}
+ */
+
+exports.isPOJO = require('./helpers/isPOJO');
+
+/**
+ * Determines if `arg` is an object that isn't an instance of a built-in value
+ * class, like Array, Buffer, ObjectId, etc.
+ * @param {Any} val
+ */
+
+exports.isNonBuiltinObject = function isNonBuiltinObject(val) {
+  return typeof val === 'object' &&
+    !exports.isNativeObject(val) &&
+    !exports.isMongooseType(val) &&
+    !(val instanceof UUID) &&
+    val != null;
+};
+
+/**
+ * Determines if `obj` is a built-in object like an array, date, boolean,
+ * etc.
+ * @param {Any} arg
+ */
+
+exports.isNativeObject = function(arg) {
+  return Array.isArray(arg) ||
+    arg instanceof Date ||
+    arg instanceof Boolean ||
+    arg instanceof Number ||
+    arg instanceof String;
+};
+
+/**
+ * Determines if `val` is an object that has no own keys
+ * @param {Any} val
+ */
+
+exports.isEmptyObject = function(val) {
+  return val != null &&
+    typeof val === 'object' &&
+    Object.keys(val).length === 0;
+};
+
+/**
+ * Search if `obj` or any POJOs nested underneath `obj` has a property named
+ * `key`
+ * @param {Object} obj
+ * @param {String} key
+ */
+
+exports.hasKey = function hasKey(obj, key) {
+  const props = Object.keys(obj);
+  for (const prop of props) {
+    if (prop === key) {
+      return true;
+    }
+    if (exports.isPOJO(obj[prop]) && exports.hasKey(obj[prop], key)) {
+      return true;
+    }
+  }
+  return false;
+};
+
+/**
+ * process.nextTick helper.
+ *
+ * Wraps `callback` in a try/catch + nextTick.
+ *
+ * node-mongodb-native has a habit of state corruption when an error is immediately thrown from within a collection callback.
+ *
+ * @param {Function} callback
+ * @api private
+ */
+
+exports.tick = function tick(callback) {
+  if (typeof callback !== 'function') {
+    return;
+  }
+  return function() {
+    try {
+      callback.apply(this, arguments);
+    } catch (err) {
+      // only nextTick on err to get out of
+      // the event loop and avoid state corruption.
+      immediate(function() {
+        throw err;
+      });
+    }
+  };
+};
+
+/**
+ * Returns true if `v` is an object that can be serialized as a primitive in
+ * MongoDB
+ * @param {Any} v
+ */
+
+exports.isMongooseType = function(v) {
+  return isBsonType(v, 'ObjectId') || isBsonType(v, 'Decimal128') || v instanceof Buffer;
+};
+
+exports.isMongooseObject = isMongooseObject;
+
+/**
+ * Converts `expires` options of index objects to `expiresAfterSeconds` options for MongoDB.
+ *
+ * @param {Object} object
+ * @api private
+ */
+
+exports.expires = function expires(object) {
+  if (!(object && object.constructor.name === 'Object')) {
+    return;
+  }
+  if (!('expires' in object)) {
+    return;
+  }
+
+  object.expireAfterSeconds = (typeof object.expires !== 'string')
+    ? object.expires
+    : Math.round(ms(object.expires) / 1000);
+  delete object.expires;
+};
+
+/**
+ * populate helper
+ * @param {String} path
+ * @param {String} select
+ * @param {Model} model
+ * @param {Object} match
+ * @param {Object} options
+ * @param {Any} subPopulate
+ * @param {Boolean} justOne
+ * @param {Boolean} count
+ */
+
+exports.populate = function populate(path, select, model, match, options, subPopulate, justOne, count) {
+  // might have passed an object specifying all arguments
+  let obj = null;
+  if (arguments.length === 1) {
+    if (path instanceof PopulateOptions) {
+      // If reusing old populate docs, avoid reusing `_docs` because that may
+      // lead to bugs and memory leaks. See gh-11641
+      path._docs = {};
+      path._childDocs = [];
+      return [path];
+    }
+
+    if (Array.isArray(path)) {
+      const singles = makeSingles(path);
+      return singles.map(o => exports.populate(o)[0]);
+    }
+
+    if (exports.isObject(path)) {
+      obj = Object.assign({}, path);
+    } else {
+      obj = { path: path };
+    }
+  } else if (typeof model === 'object') {
+    obj = {
+      path: path,
+      select: select,
+      match: model,
+      options: match
+    };
+  } else {
+    obj = {
+      path: path,
+      select: select,
+      model: model,
+      match: match,
+      options: options,
+      populate: subPopulate,
+      justOne: justOne,
+      count: count
+    };
+  }
+
+  if (typeof obj.path !== 'string') {
+    throw new TypeError('utils.populate: invalid path. Expected string. Got typeof `' + typeof path + '`');
+  }
+
+  return _populateObj(obj);
+
+  // The order of select/conditions args is opposite Model.find but
+  // necessary to keep backward compatibility (select could be
+  // an array, string, or object literal).
+  function makeSingles(arr) {
+    const ret = [];
+    arr.forEach(function(obj) {
+      if (oneSpaceRE.test(obj.path)) {
+        const paths = obj.path.split(manySpaceRE);
+        paths.forEach(function(p) {
+          const copy = Object.assign({}, obj);
+          copy.path = p;
+          ret.push(copy);
+        });
+      } else {
+        ret.push(obj);
+      }
+    });
+
+    return ret;
+  }
+};
+
+function _populateObj(obj) {
+  if (Array.isArray(obj.populate)) {
+    const ret = [];
+    obj.populate.forEach(function(obj) {
+      if (oneSpaceRE.test(obj.path)) {
+        const copy = Object.assign({}, obj);
+        const paths = copy.path.split(manySpaceRE);
+        paths.forEach(function(p) {
+          copy.path = p;
+          ret.push(exports.populate(copy)[0]);
+        });
+      } else {
+        ret.push(exports.populate(obj)[0]);
+      }
+    });
+    obj.populate = exports.populate(ret);
+  } else if (obj.populate != null && typeof obj.populate === 'object') {
+    obj.populate = exports.populate(obj.populate);
+  }
+
+  const ret = [];
+  const paths = oneSpaceRE.test(obj.path) ? obj.path.split(manySpaceRE) : [obj.path];
+  if (obj.options != null) {
+    obj.options = clone(obj.options);
+  }
+
+  for (const path of paths) {
+    ret.push(new PopulateOptions(Object.assign({}, obj, { path: path })));
+  }
+
+  return ret;
+}
+
+/**
+ * Return the value of `obj` at the given `path`.
+ *
+ * @param {String} path
+ * @param {Object} obj
+ * @param {Any} map
+ */
+
+exports.getValue = function(path, obj, map) {
+  return mpath.get(path, obj, getValueLookup, map);
+};
+
+/*!
+ * ignore
+ */
+
+const mapGetterOptions = Object.freeze({ getters: false });
+
+function getValueLookup(obj, part) {
+  if (part === '$*' && obj instanceof Map) {
+    return obj;
+  }
+  let _from = obj?._doc || obj;
+  if (_from != null && _from.isMongooseArrayProxy) {
+    _from = _from.__array;
+  }
+  return _from instanceof Map ?
+    _from.get(part, mapGetterOptions) :
+    _from[part];
+}
+
+/**
+ * Sets the value of `obj` at the given `path`.
+ *
+ * @param {String} path
+ * @param {Anything} val
+ * @param {Object} obj
+ * @param {Any} map
+ * @param {Any} _copying
+ */
+
+exports.setValue = function(path, val, obj, map, _copying) {
+  mpath.set(path, val, obj, '_doc', map, _copying);
+};
+
+/**
+ * Returns an array of values from object `o`.
+ *
+ * @param {Object} o
+ * @return {Array}
+ * @api private
+ */
+
+exports.object = {};
+exports.object.vals = function vals(o) {
+  const keys = Object.keys(o);
+  let i = keys.length;
+  const ret = [];
+
+  while (i--) {
+    ret.push(o[keys[i]]);
+  }
+
+  return ret;
+};
+
+const hop = Object.prototype.hasOwnProperty;
+
+/**
+ * Safer helper for hasOwnProperty checks
+ *
+ * @param {Object} obj
+ * @param {String} prop
+ */
+
+exports.object.hasOwnProperty = function(obj, prop) {
+  return hop.call(obj, prop);
+};
+
+/**
+ * Determine if `val` is null or undefined
+ *
+ * @param {Any} val
+ * @return {Boolean}
+ */
+
+exports.isNullOrUndefined = function(val) {
+  return val === null || val === undefined;
+};
+
+/*!
+ * ignore
+ */
+
+exports.array = {};
+
+/**
+ * Flattens an array.
+ *
+ * [ 1, [ 2, 3, [4] ]] -> [1,2,3,4]
+ *
+ * @param {Array} arr
+ * @param {Function} [filter] If passed, will be invoked with each item in the array. If `filter` returns a falsy value, the item will not be included in the results.
+ * @param {Array} ret
+ * @return {Array}
+ * @api private
+ */
+
+exports.array.flatten = function flatten(arr, filter, ret) {
+  ret || (ret = []);
+
+  arr.forEach(function(item) {
+    if (Array.isArray(item)) {
+      flatten(item, filter, ret);
+    } else {
+      if (!filter || filter(item)) {
+        ret.push(item);
+      }
+    }
+  });
+
+  return ret;
+};
+
+/*!
+ * ignore
+ */
+
+const _hasOwnProperty = Object.prototype.hasOwnProperty;
+
+exports.hasUserDefinedProperty = function(obj, key) {
+  if (obj == null) {
+    return false;
+  }
+
+  if (Array.isArray(key)) {
+    for (const k of key) {
+      if (exports.hasUserDefinedProperty(obj, k)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  if (_hasOwnProperty.call(obj, key)) {
+    return true;
+  }
+  if (typeof obj === 'object' && key in obj) {
+    const v = obj[key];
+    return v !== Object.prototype[key] && v !== Array.prototype[key];
+  }
+
+  return false;
+};
+
+/*!
+ * ignore
+ */
+
+const MAX_ARRAY_INDEX = Math.pow(2, 32) - 1;
+
+exports.isArrayIndex = function(val) {
+  if (typeof val === 'number') {
+    return val >= 0 && val <= MAX_ARRAY_INDEX;
+  }
+  if (typeof val === 'string') {
+    if (!/^\d+$/.test(val)) {
+      return false;
+    }
+    val = +val;
+    return val >= 0 && val <= MAX_ARRAY_INDEX;
+  }
+
+  return false;
+};
+
+/**
+ * Removes duplicate values from an array
+ *
+ * [1, 2, 3, 3, 5] => [1, 2, 3, 5]
+ * [ ObjectId("550988ba0c19d57f697dc45e"), ObjectId("550988ba0c19d57f697dc45e") ]
+ *    => [ObjectId("550988ba0c19d57f697dc45e")]
+ *
+ * @param {Array} arr
+ * @return {Array}
+ * @api private
+ */
+
+exports.array.unique = function(arr) {
+  const primitives = new Set();
+  const ids = new Set();
+  const ret = [];
+
+  for (const item of arr) {
+    if (typeof item === 'number' || typeof item === 'string' || item == null) {
+      if (primitives.has(item)) {
+        continue;
+      }
+      ret.push(item);
+      primitives.add(item);
+    } else if (isBsonType(item, 'ObjectId')) {
+      if (ids.has(item.toString())) {
+        continue;
+      }
+      ret.push(item);
+      ids.add(item.toString());
+    } else {
+      ret.push(item);
+    }
+  }
+
+  return ret;
+};
+
+exports.buffer = {};
+
+/**
+ * Determines if two buffers are equal.
+ *
+ * @param {Buffer} a
+ * @param {Object} b
+ */
+
+exports.buffer.areEqual = function(a, b) {
+  if (!Buffer.isBuffer(a)) {
+    return false;
+  }
+  if (!Buffer.isBuffer(b)) {
+    return false;
+  }
+  if (a.length !== b.length) {
+    return false;
+  }
+  for (let i = 0, len = a.length; i < len; ++i) {
+    if (a[i] !== b[i]) {
+      return false;
+    }
+  }
+  return true;
+};
+
+exports.getFunctionName = getFunctionName;
+
+/**
+ * Decorate buffers
+ * @param {Object} destination
+ * @param {Object} source
+ */
+
+exports.decorate = function(destination, source) {
+  for (const key in source) {
+    if (specialProperties.has(key)) {
+      continue;
+    }
+    destination[key] = source[key];
+  }
+};
+
+/**
+ * merges to with a copy of from
+ *
+ * @param {Object} to
+ * @param {Object} fromObj
+ * @api private
+ */
+
+exports.mergeClone = function(to, fromObj) {
+  if (isMongooseObject(fromObj)) {
+    fromObj = fromObj.toObject({
+      transform: false,
+      virtuals: false,
+      depopulate: true,
+      getters: false,
+      flattenDecimals: false
+    });
+  }
+  const keys = Object.keys(fromObj);
+  const len = keys.length;
+  let i = 0;
+  let key;
+
+  while (i < len) {
+    key = keys[i++];
+    if (specialProperties.has(key)) {
+      continue;
+    }
+    if (typeof to[key] === 'undefined') {
+      to[key] = clone(fromObj[key], {
+        transform: false,
+        virtuals: false,
+        depopulate: true,
+        getters: false,
+        flattenDecimals: false
+      });
+    } else {
+      let val = fromObj[key];
+      if (val != null && val.valueOf && !(val instanceof Date)) {
+        val = val.valueOf();
+      }
+      if (exports.isObject(val)) {
+        let obj = val;
+        if (isMongooseObject(val) && !val.isMongooseBuffer) {
+          obj = obj.toObject({
+            transform: false,
+            virtuals: false,
+            depopulate: true,
+            getters: false,
+            flattenDecimals: false
+          });
+        }
+        if (val.isMongooseBuffer) {
+          obj = Buffer.from(obj);
+        }
+        exports.mergeClone(to[key], obj);
+      } else {
+        to[key] = clone(val, {
+          flattenDecimals: false
+        });
+      }
+    }
+  }
+};
+
+/**
+ * Executes a function on each element of an array (like _.each)
+ *
+ * @param {Array} arr
+ * @param {Function} fn
+ * @api private
+ */
+
+exports.each = function(arr, fn) {
+  for (const item of arr) {
+    fn(item);
+  }
+};
+
+/**
+ * Rename an object key, while preserving its position in the object
+ *
+ * @param {Object} oldObj
+ * @param {String|Number} oldKey
+ * @param {String|Number} newKey
+ * @api private
+ */
+exports.renameObjKey = function(oldObj, oldKey, newKey) {
+  const keys = Object.keys(oldObj);
+  return keys.reduce(
+    (acc, val) => {
+      if (val === oldKey) {
+        acc[newKey] = oldObj[oldKey];
+      } else {
+        acc[val] = oldObj[val];
+      }
+      return acc;
+    },
+    {}
+  );
+};
+
+/*!
+ * ignore
+ */
+
+exports.getOption = function(name) {
+  const sources = Array.prototype.slice.call(arguments, 1);
+
+  for (const source of sources) {
+    if (source == null) {
+      continue;
+    }
+    if (source[name] != null) {
+      return source[name];
+    }
+  }
+
+  return null;
+};
+
+/*!
+ * ignore
+ */
+
+exports.noop = function() {};
+
+exports.errorToPOJO = function errorToPOJO(error) {
+  const isError = error instanceof Error;
+  if (!isError) {
+    throw new Error('`error` must be `instanceof Error`.');
+  }
+
+  const ret = {};
+  for (const properyName of Object.getOwnPropertyNames(error)) {
+    ret[properyName] = error[properyName];
+  }
+  return ret;
+};
+
+/*!
+ * ignore
+ */
+
+exports.warn = function warn(message) {
+  return process.emitWarning(message, { code: 'MONGOOSE' });
+};
+
+
+exports.injectTimestampsOption = function injectTimestampsOption(writeOperation, timestampsOption) {
+  if (timestampsOption == null) {
+    return;
+  }
+  writeOperation.timestamps = timestampsOption;
+};
diff --git a/backend/node_modules/mongoose/lib/validOptions.js b/backend/node_modules/mongoose/lib/validOptions.js
new file mode 100644
index 0000000..6c09480
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/validOptions.js
@@ -0,0 +1,41 @@
+
+/*!
+ * Valid mongoose options
+ */
+
+'use strict';
+
+const VALID_OPTIONS = Object.freeze([
+  'allowDiskUse',
+  'applyPluginsToChildSchemas',
+  'applyPluginsToDiscriminators',
+  'autoCreate',
+  'autoIndex',
+  'autoSearchIndex',
+  'bufferCommands',
+  'bufferTimeoutMS',
+  'cloneSchemas',
+  'createInitialConnection',
+  'debug',
+  'forceRepopulate',
+  'id',
+  'timestamps.createdAt.immutable',
+  'maxTimeMS',
+  'objectIdGetter',
+  'overwriteModels',
+  'returnOriginal',
+  'runValidators',
+  'sanitizeFilter',
+  'sanitizeProjection',
+  'selectPopulatedPaths',
+  'setDefaultsOnInsert',
+  'strict',
+  'strictPopulate',
+  'strictQuery',
+  'toJSON',
+  'toObject',
+  'transactionAsyncLocalStorage',
+  'translateAliases'
+]);
+
+module.exports = VALID_OPTIONS;
diff --git a/backend/node_modules/mongoose/lib/virtualType.js b/backend/node_modules/mongoose/lib/virtualType.js
new file mode 100644
index 0000000..2008ebf
--- /dev/null
+++ b/backend/node_modules/mongoose/lib/virtualType.js
@@ -0,0 +1,204 @@
+'use strict';
+
+const modelNamesFromRefPath = require('./helpers/populate/modelNamesFromRefPath');
+const utils = require('./utils');
+
+const modelSymbol = require('./helpers/symbols').modelSymbol;
+
+/**
+ * VirtualType constructor
+ *
+ * This is what mongoose uses to define virtual attributes via `Schema.prototype.virtual`.
+ *
+ * #### Example:
+ *
+ *     const fullname = schema.virtual('fullname');
+ *     fullname instanceof mongoose.VirtualType // true
+ *
+ * @param {Object} options
+ * @param {String|Function} [options.ref] if `ref` is not nullish, this becomes a [populated virtual](https://mongoosejs.com/docs/populate.html#populate-virtuals)
+ * @param {String|Function} [options.localField] the local field to populate on if this is a populated virtual.
+ * @param {String|Function} [options.foreignField] the foreign field to populate on if this is a populated virtual.
+ * @param {Boolean} [options.justOne=false] by default, a populated virtual is an array. If you set `justOne`, the populated virtual will be a single doc or `null`.
+ * @param {Boolean} [options.getters=false] if you set this to `true`, Mongoose will call any custom getters you defined on this virtual
+ * @param {Boolean} [options.count=false] if you set this to `true`, `populate()` will set this virtual to the number of populated documents, as opposed to the documents themselves, using [`Query#countDocuments()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.countDocuments())
+ * @param {Object|Function} [options.match=null] add an extra match condition to `populate()`
+ * @param {Number} [options.limit=null] add a default `limit` to the `populate()` query
+ * @param {Number} [options.skip=null] add a default `skip` to the `populate()` query
+ * @param {Number} [options.perDocumentLimit=null] For legacy reasons, `limit` with `populate()` may give incorrect results because it only executes a single query for every document being populated. If you set `perDocumentLimit`, Mongoose will ensure correct `limit` per document by executing a separate query for each document to `populate()`. For example, `.find().populate({ path: 'test', perDocumentLimit: 2 })` will execute 2 additional queries if `.find()` returns 2 documents.
+ * @param {Object} [options.options=null] Additional options like `limit` and `lean`.
+ * @param {String} name
+ * @api public
+ */
+
+function VirtualType(options, name) {
+  this.path = name;
+  this.getters = [];
+  this.setters = [];
+  this.options = Object.assign({}, options);
+}
+
+/**
+ * If no getters/setters, add a default
+ *
+ * @api private
+ */
+
+VirtualType.prototype._applyDefaultGetters = function() {
+  if (this.getters.length > 0 || this.setters.length > 0) {
+    return;
+  }
+
+  const path = this.path;
+  const internalProperty = '$' + path;
+  this.getters.push(function() {
+    return this.$locals[internalProperty];
+  });
+  this.setters.push(function(v) {
+    this.$locals[internalProperty] = v;
+  });
+};
+
+/*!
+ * ignore
+ */
+
+VirtualType.prototype.clone = function() {
+  const clone = new VirtualType(this.options, this.path);
+  clone.getters = [].concat(this.getters);
+  clone.setters = [].concat(this.setters);
+  return clone;
+};
+
+/**
+ * Adds a custom getter to this virtual.
+ *
+ * Mongoose calls the getter function with the below 3 parameters.
+ *
+ * - `value`: the value returned by the previous getter. If there is only one getter, `value` will be `undefined`.
+ * - `virtual`: the virtual object you called `.get()` on.
+ * - `doc`: the document this virtual is attached to. Equivalent to `this`.
+ *
+ * #### Example:
+ *
+ *     const virtual = schema.virtual('fullname');
+ *     virtual.get(function(value, virtual, doc) {
+ *       return this.name.first + ' ' + this.name.last;
+ *     });
+ *
+ * @param {Function} fn
+ * @return {VirtualType} this
+ * @api public
+ */
+
+VirtualType.prototype.get = function(fn) {
+  this.getters.push(fn);
+  return this;
+};
+
+/**
+ * Adds a custom setter to this virtual.
+ *
+ * Mongoose calls the setter function with the below 3 parameters.
+ *
+ * - `value`: the value being set.
+ * - `virtual`: the virtual object you're calling `.set()` on.
+ * - `doc`: the document this virtual is attached to. Equivalent to `this`.
+ *
+ * #### Example:
+ *
+ *     const virtual = schema.virtual('fullname');
+ *     virtual.set(function(value, virtual, doc) {
+ *       const parts = value.split(' ');
+ *       this.name.first = parts[0];
+ *       this.name.last = parts[1];
+ *     });
+ *
+ *     const Model = mongoose.model('Test', schema);
+ *     const doc = new Model();
+ *     // Calls the setter with `value = 'Jean-Luc Picard'`
+ *     doc.fullname = 'Jean-Luc Picard';
+ *     doc.name.first; // 'Jean-Luc'
+ *     doc.name.last; // 'Picard'
+ *
+ * @param {Function} fn
+ * @return {VirtualType} this
+ * @api public
+ */
+
+VirtualType.prototype.set = function(fn) {
+  this.setters.push(fn);
+  return this;
+};
+
+/**
+ * Applies getters to `value`.
+ *
+ * @param {Object} value
+ * @param {Document} doc The document this virtual is attached to
+ * @return {Any} the value after applying all getters
+ * @api public
+ */
+
+VirtualType.prototype.applyGetters = function(value, doc) {
+  if (utils.hasUserDefinedProperty(this.options, ['ref', 'refPath']) &&
+      doc.$$populatedVirtuals &&
+      doc.$$populatedVirtuals.hasOwnProperty(this.path)) {
+    value = doc.$$populatedVirtuals[this.path];
+  }
+
+  let v = value;
+  for (const getter of this.getters) {
+    v = getter.call(doc, v, this, doc);
+  }
+  return v;
+};
+
+/**
+ * Applies setters to `value`.
+ *
+ * @param {Object} value
+ * @param {Document} doc
+ * @return {Any} the value after applying all setters
+ * @api public
+ */
+
+VirtualType.prototype.applySetters = function(value, doc) {
+  let v = value;
+  for (const setter of this.setters) {
+    v = setter.call(doc, v, this, doc);
+  }
+  return v;
+};
+
+/**
+ * Get the names of models used to populate this model given a doc
+ *
+ * @param {Document} doc
+ * @return {Array<string> | null}
+ * @api private
+ */
+
+VirtualType.prototype._getModelNamesForPopulate = function _getModelNamesForPopulate(doc) {
+  if (this.options.refPath) {
+    return modelNamesFromRefPath(this.options.refPath, doc, this.path);
+  }
+
+  let normalizedRef = null;
+  if (typeof this.options.ref === 'function' && !this.options.ref[modelSymbol]) {
+    normalizedRef = this.options.ref.call(doc, doc);
+  } else {
+    normalizedRef = this.options.ref;
+  }
+  if (normalizedRef != null && !Array.isArray(normalizedRef)) {
+    return [normalizedRef];
+  }
+
+  return normalizedRef;
+};
+
+/*!
+ * exports
+ */
+
+module.exports = VirtualType;
diff --git a/backend/node_modules/mongoose/node_modules/ms/index.js b/backend/node_modules/mongoose/node_modules/ms/index.js
new file mode 100644
index 0000000..ea734fb
--- /dev/null
+++ b/backend/node_modules/mongoose/node_modules/ms/index.js
@@ -0,0 +1,162 @@
+/**
+ * Helpers.
+ */
+
+var s = 1000;
+var m = s * 60;
+var h = m * 60;
+var d = h * 24;
+var w = d * 7;
+var y = d * 365.25;
+
+/**
+ * Parse or format the given `val`.
+ *
+ * Options:
+ *
+ *  - `long` verbose formatting [false]
+ *
+ * @param {String|Number} val
+ * @param {Object} [options]
+ * @throws {Error} throw an error if val is not a non-empty string or a number
+ * @return {String|Number}
+ * @api public
+ */
+
+module.exports = function (val, options) {
+  options = options || {};
+  var type = typeof val;
+  if (type === 'string' && val.length > 0) {
+    return parse(val);
+  } else if (type === 'number' && isFinite(val)) {
+    return options.long ? fmtLong(val) : fmtShort(val);
+  }
+  throw new Error(
+    'val is not a non-empty string or a valid number. val=' +
+      JSON.stringify(val)
+  );
+};
+
+/**
+ * Parse the given `str` and return milliseconds.
+ *
+ * @param {String} str
+ * @return {Number}
+ * @api private
+ */
+
+function parse(str) {
+  str = String(str);
+  if (str.length > 100) {
+    return;
+  }
+  var match = /^(-?(?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(
+    str
+  );
+  if (!match) {
+    return;
+  }
+  var n = parseFloat(match[1]);
+  var type = (match[2] || 'ms').toLowerCase();
+  switch (type) {
+    case 'years':
+    case 'year':
+    case 'yrs':
+    case 'yr':
+    case 'y':
+      return n * y;
+    case 'weeks':
+    case 'week':
+    case 'w':
+      return n * w;
+    case 'days':
+    case 'day':
+    case 'd':
+      return n * d;
+    case 'hours':
+    case 'hour':
+    case 'hrs':
+    case 'hr':
+    case 'h':
+      return n * h;
+    case 'minutes':
+    case 'minute':
+    case 'mins':
+    case 'min':
+    case 'm':
+      return n * m;
+    case 'seconds':
+    case 'second':
+    case 'secs':
+    case 'sec':
+    case 's':
+      return n * s;
+    case 'milliseconds':
+    case 'millisecond':
+    case 'msecs':
+    case 'msec':
+    case 'ms':
+      return n;
+    default:
+      return undefined;
+  }
+}
+
+/**
+ * Short format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function fmtShort(ms) {
+  var msAbs = Math.abs(ms);
+  if (msAbs >= d) {
+    return Math.round(ms / d) + 'd';
+  }
+  if (msAbs >= h) {
+    return Math.round(ms / h) + 'h';
+  }
+  if (msAbs >= m) {
+    return Math.round(ms / m) + 'm';
+  }
+  if (msAbs >= s) {
+    return Math.round(ms / s) + 's';
+  }
+  return ms + 'ms';
+}
+
+/**
+ * Long format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function fmtLong(ms) {
+  var msAbs = Math.abs(ms);
+  if (msAbs >= d) {
+    return plural(ms, msAbs, d, 'day');
+  }
+  if (msAbs >= h) {
+    return plural(ms, msAbs, h, 'hour');
+  }
+  if (msAbs >= m) {
+    return plural(ms, msAbs, m, 'minute');
+  }
+  if (msAbs >= s) {
+    return plural(ms, msAbs, s, 'second');
+  }
+  return ms + ' ms';
+}
+
+/**
+ * Pluralization helper.
+ */
+
+function plural(ms, msAbs, n, name) {
+  var isPlural = msAbs >= n * 1.5;
+  return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');
+}
diff --git a/backend/node_modules/mongoose/node_modules/ms/license.md b/backend/node_modules/mongoose/node_modules/ms/license.md
new file mode 100644
index 0000000..fa5d39b
--- /dev/null
+++ b/backend/node_modules/mongoose/node_modules/ms/license.md
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2020 Vercel, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/mongoose/node_modules/ms/package.json b/backend/node_modules/mongoose/node_modules/ms/package.json
new file mode 100644
index 0000000..4997189
--- /dev/null
+++ b/backend/node_modules/mongoose/node_modules/ms/package.json
@@ -0,0 +1,38 @@
+{
+  "name": "ms",
+  "version": "2.1.3",
+  "description": "Tiny millisecond conversion utility",
+  "repository": "vercel/ms",
+  "main": "./index",
+  "files": [
+    "index.js"
+  ],
+  "scripts": {
+    "precommit": "lint-staged",
+    "lint": "eslint lib/* bin/*",
+    "test": "mocha tests.js"
+  },
+  "eslintConfig": {
+    "extends": "eslint:recommended",
+    "env": {
+      "node": true,
+      "es6": true
+    }
+  },
+  "lint-staged": {
+    "*.js": [
+      "npm run lint",
+      "prettier --single-quote --write",
+      "git add"
+    ]
+  },
+  "license": "MIT",
+  "devDependencies": {
+    "eslint": "4.18.2",
+    "expect.js": "0.3.1",
+    "husky": "0.14.3",
+    "lint-staged": "5.0.0",
+    "mocha": "4.0.1",
+    "prettier": "2.0.5"
+  }
+}
diff --git a/backend/node_modules/mongoose/node_modules/ms/readme.md b/backend/node_modules/mongoose/node_modules/ms/readme.md
new file mode 100644
index 0000000..0fc1abb
--- /dev/null
+++ b/backend/node_modules/mongoose/node_modules/ms/readme.md
@@ -0,0 +1,59 @@
+# ms
+
+![CI](https://github.com/vercel/ms/workflows/CI/badge.svg)
+
+Use this package to easily convert various time formats to milliseconds.
+
+## Examples
+
+```js
+ms('2 days')  // 172800000
+ms('1d')      // 86400000
+ms('10h')     // 36000000
+ms('2.5 hrs') // 9000000
+ms('2h')      // 7200000
+ms('1m')      // 60000
+ms('5s')      // 5000
+ms('1y')      // 31557600000
+ms('100')     // 100
+ms('-3 days') // -259200000
+ms('-1h')     // -3600000
+ms('-200')    // -200
+```
+
+### Convert from Milliseconds
+
+```js
+ms(60000)             // "1m"
+ms(2 * 60000)         // "2m"
+ms(-3 * 60000)        // "-3m"
+ms(ms('10 hours'))    // "10h"
+```
+
+### Time Format Written-Out
+
+```js
+ms(60000, { long: true })             // "1 minute"
+ms(2 * 60000, { long: true })         // "2 minutes"
+ms(-3 * 60000, { long: true })        // "-3 minutes"
+ms(ms('10 hours'), { long: true })    // "10 hours"
+```
+
+## Features
+
+- Works both in [Node.js](https://nodejs.org) and in the browser
+- If a number is supplied to `ms`, a string with a unit is returned
+- If a string that contains the number is supplied, it returns it as a number (e.g.: it returns `100` for `'100'`)
+- If you pass a string with a number and a valid unit, the number of equivalent milliseconds is returned
+
+## Related Packages
+
+- [ms.macro](https://github.com/knpwrs/ms.macro) - Run `ms` as a macro at build-time.
+
+## Caught a Bug?
+
+1. [Fork](https://help.github.com/articles/fork-a-repo/) this repository to your own GitHub account and then [clone](https://help.github.com/articles/cloning-a-repository/) it to your local device
+2. Link the package to the global module directory: `npm link`
+3. Within the module you want to test your local development instance of ms, just link it to the dependencies: `npm link ms`. Instead of the default one from npm, Node.js will now use your clone of ms!
+
+As always, you can run the tests using: `npm test`
diff --git a/backend/node_modules/mongoose/package.json b/backend/node_modules/mongoose/package.json
new file mode 100644
index 0000000..7846787
--- /dev/null
+++ b/backend/node_modules/mongoose/package.json
@@ -0,0 +1,145 @@
+{
+  "name": "mongoose",
+  "description": "Mongoose MongoDB ODM",
+  "version": "8.9.7",
+  "author": "Guillermo Rauch <guillermo@learnboost.com>",
+  "keywords": [
+    "mongodb",
+    "document",
+    "model",
+    "schema",
+    "database",
+    "odm",
+    "data",
+    "datastore",
+    "query",
+    "nosql",
+    "orm",
+    "db"
+  ],
+  "license": "MIT",
+  "dependencies": {
+    "bson": "^6.10.1",
+    "kareem": "2.6.3",
+    "mongodb": "~6.12.0",
+    "mpath": "0.9.0",
+    "mquery": "5.0.0",
+    "ms": "2.1.3",
+    "sift": "17.1.3"
+  },
+  "devDependencies": {
+    "@babel/core": "7.26.7",
+    "@babel/preset-env": "7.26.7",
+    "@typescript-eslint/eslint-plugin": "^8.19.1",
+    "@typescript-eslint/parser": "^8.19.1",
+    "acquit": "1.3.0",
+    "acquit-ignore": "0.2.1",
+    "acquit-require": "0.1.1",
+    "assert-browserify": "2.0.0",
+    "babel-loader": "8.2.5",
+    "broken-link-checker": "^0.7.8",
+    "buffer": "^5.6.0",
+    "cheerio": "1.0.0",
+    "crypto-browserify": "3.12.1",
+    "dox": "1.0.0",
+    "eslint": "8.57.1",
+    "eslint-plugin-markdown": "^5.1.0",
+    "eslint-plugin-mocha-no-only": "1.2.0",
+    "express": "^4.19.2",
+    "fs-extra": "~11.3.0",
+    "highlight.js": "11.11.1",
+    "lodash.isequal": "4.5.0",
+    "lodash.isequalwith": "4.4.0",
+    "markdownlint-cli2": "^0.17.1",
+    "marked": "15.0.6",
+    "mkdirp": "^3.0.1",
+    "mocha": "11.1.0",
+    "moment": "2.30.1",
+    "mongodb-memory-server": "10.1.3",
+    "ncp": "^2.0.0",
+    "nyc": "15.1.0",
+    "pug": "3.0.3",
+    "q": "1.5.1",
+    "sinon": "19.0.2",
+    "stream-browserify": "3.0.0",
+    "tsd": "0.31.2",
+    "typescript": "5.7.3",
+    "uuid": "11.0.5",
+    "webpack": "5.97.1"
+  },
+  "directories": {
+    "lib": "./lib/mongoose"
+  },
+  "scripts": {
+    "docs:clean": "npm run docs:clean:stable",
+    "docs:clean:stable": "rimraf index.html && rimraf -rf ./docs/*.html  && rimraf -rf ./docs/api && rimraf -rf ./docs/tutorials/*.html && rimraf -rf ./docs/typescript/*.html && rimraf -rf ./docs/*.html && rimraf -rf ./docs/source/_docs && rimraf -rf ./tmp",
+    "docs:clean:5x": "rimraf index.html && rimraf -rf ./docs/5.x && rimraf -rf ./docs/source/_docs && rimraf -rf ./tmp",
+    "docs:clean:6x": "rimraf index.html && rimraf -rf ./docs/6.x && rimraf -rf ./docs/source/_docs && rimraf -rf ./tmp",
+    "docs:copy:tmp": "mkdirp ./tmp/docs/css && mkdirp ./tmp/docs/js && mkdirp ./tmp/docs/images && mkdirp ./tmp/docs/tutorials && mkdirp ./tmp/docs/typescript && mkdirp ./tmp/docs/api && ncp ./docs/css ./tmp/docs/css --filter=.css$ && ncp ./docs/js ./tmp/docs/js --filter=.js$ && ncp ./docs/images ./tmp/docs/images && ncp ./docs/tutorials ./tmp/docs/tutorials && ncp ./docs/typescript ./tmp/docs/typescript && ncp ./docs/api ./tmp/docs/api && cp index.html ./tmp && cp docs/*.html ./tmp/docs/",
+    "docs:copy:tmp:5x": "rimraf ./docs/5.x && ncp ./tmp ./docs/5.x",
+    "docs:copy:tmp:6x": "rimraf ./docs/6.x && ncp ./tmp ./docs/6.x",
+    "docs:generate": "node ./scripts/website.js",
+    "docs:generate:sponsorData": "node ./scripts/loadSponsorData.js",
+    "docs:test": "npm run docs:generate",
+    "docs:view": "node ./scripts/static.js",
+    "docs:prepare:publish:stable": "git checkout gh-pages && git merge master && npm run docs:generate",
+    "docs:prepare:publish:5x": "git checkout 5.x && git merge 5.x && npm run docs:clean:stable && npm run docs:generate && npm run docs:copy:tmp && git checkout gh-pages && npm run docs:copy:tmp:5x",
+    "docs:prepare:publish:6x": "git checkout 6.x && git merge 6.x && npm run docs:clean:stable && env DOCS_DEPLOY=true npm run docs:generate && mv ./docs/6.x ./tmp && git checkout gh-pages && npm run docs:copy:tmp:6x",
+    "docs:prepare:publish:7x": "env DOCS_DEPLOY=true npm run docs:generate && git checkout gh-pages && rimraf ./docs/7.x && mv ./tmp ./docs/7.x",
+    "docs:check-links": "blc http://127.0.0.1:8089 -ro",
+    "lint": "eslint .",
+    "lint-js": "eslint . --ext .js --ext .cjs",
+    "lint-ts": "eslint . --ext .ts",
+    "lint-md": "markdownlint-cli2 \"**/*.md\" \"#node_modules\" \"#benchmarks\"",
+    "build-browser": "(rm ./dist/* || true) && node ./scripts/build-browser.js",
+    "prepublishOnly": "npm run build-browser",
+    "release": "git pull && git push origin master --tags && npm publish",
+    "release-5x": "git pull origin 5.x && git push origin 5.x && git push origin 5.x --tags && npm publish --tag 5x",
+    "release-6x": "git pull origin 6.x && git push origin 6.x && git push origin 6.x --tags && npm publish --tag 6x",
+    "mongo": "node ./tools/repl.js",
+    "publish-7x": "npm publish --tag 7x",
+    "test": "mocha --exit ./test/*.test.js",
+    "test-deno": "deno run --allow-env --allow-read --allow-net --allow-run --allow-sys --allow-write ./test/deno.js",
+    "test-rs": "START_REPLICA_SET=1 mocha --timeout 30000 --exit ./test/*.test.js",
+    "test-tsd": "node ./test/types/check-types-filename && tsd",
+    "tdd": "mocha ./test/*.test.js --inspect --watch --recursive --watch-files ./**/*.{js,ts}",
+    "test-coverage": "nyc --reporter=html --reporter=text npm test",
+    "ts-benchmark": "cd ./benchmarks/typescript/simple && npm install && npm run benchmark | node ../../../scripts/tsc-diagnostics-check"
+  },
+  "main": "./index.js",
+  "types": "./types/index.d.ts",
+  "engines": {
+    "node": ">=16.20.1"
+  },
+  "bugs": {
+    "url": "https://github.com/Automattic/mongoose/issues/new"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/Automattic/mongoose.git"
+  },
+  "homepage": "https://mongoosejs.com",
+  "browser": "./dist/browser.umd.js",
+  "config": {
+    "mongodbMemoryServer": {
+      "disablePostinstall": true
+    }
+  },
+  "funding": {
+    "type": "opencollective",
+    "url": "https://opencollective.com/mongoose"
+  },
+  "tsd": {
+    "directory": "test/types",
+    "compilerOptions": {
+      "esModuleInterop": false,
+      "strict": true,
+      "allowSyntheticDefaultImports": true,
+      "strictPropertyInitialization": false,
+      "noImplicitAny": false,
+      "strictNullChecks": true,
+      "module": "commonjs",
+      "target": "ES2017"
+    }
+  }
+}
diff --git a/backend/node_modules/mongoose/types/aggregate.d.ts b/backend/node_modules/mongoose/types/aggregate.d.ts
new file mode 100644
index 0000000..29b4776
--- /dev/null
+++ b/backend/node_modules/mongoose/types/aggregate.d.ts
@@ -0,0 +1,180 @@
+declare module 'mongoose' {
+  import mongodb = require('mongodb');
+
+  /** Extract generic type from Aggregate class */
+  type AggregateExtract<P> = P extends Aggregate<infer T> ? T : never;
+
+  interface AggregateOptions extends Omit<mongodb.AggregateOptions, 'session'>, SessionOption {
+    [key: string]: any;
+  }
+
+  class Aggregate<ResultType> implements SessionOperation {
+    /**
+     * Returns an asyncIterator for use with [`for/await/of` loops](https://thecodebarbarian.com/getting-started-with-async-iterators-in-node-js)
+     * You do not need to call this function explicitly, the JavaScript runtime
+     * will call it for you.
+     */
+    [Symbol.asyncIterator](): AsyncIterableIterator<Unpacked<ResultType>>;
+
+    // Returns a string representation of this aggregation.
+    [Symbol.toStringTag]: string;
+
+    options: AggregateOptions;
+
+    /**
+     * Sets an option on this aggregation. This function will be deprecated in a
+     * future release.
+     *
+     * @deprecated
+     */
+    addCursorFlag(flag: CursorFlag, value: boolean): this;
+
+    /**
+     * Appends a new $addFields operator to this aggregate pipeline.
+     * Requires MongoDB v3.4+ to work
+     */
+    addFields(arg: PipelineStage.AddFields['$addFields']): this;
+
+    /** Sets the allowDiskUse option for the aggregation query */
+    allowDiskUse(value: boolean): this;
+
+    /** Appends new operators to this aggregate pipeline */
+    append(...args: PipelineStage[]): this;
+
+    /**
+     * Executes the query returning a `Promise` which will be
+     * resolved with either the doc(s) or rejected with the error.
+     * Like [`.then()`](#query_Query-then), but only takes a rejection handler.
+     */
+    catch: Promise<ResultType>['catch'];
+
+    /** Set the collation. */
+    collation(options: mongodb.CollationOptions): this;
+
+    /** Appends a new $count operator to this aggregate pipeline. */
+    count(fieldName: PipelineStage.Count['$count']): this;
+
+    /** Appends a new $densify operator to this aggregate pipeline */
+    densify(arg: PipelineStage.Densify['$densify']): this;
+
+    /**
+     * Sets the cursor option for the aggregation query
+     */
+    cursor<DocType = any>(options?: Record<string, unknown>): Cursor<DocType>;
+
+
+    /** Executes the aggregate pipeline on the currently bound Model. */
+    exec(): Promise<ResultType>;
+
+    /** Execute the aggregation with explain */
+    explain(verbosity: mongodb.ExplainVerbosityLike): Promise<AnyObject>;
+    explain(): Promise<AnyObject>;
+
+    /** Combines multiple aggregation pipelines. */
+    facet(options: PipelineStage.Facet['$facet']): this;
+
+    /** Appends a new $fill operator to this aggregate pipeline */
+    fill(arg: PipelineStage.Fill['$fill']): this;
+
+    /**
+     * Executes the aggregation returning a `Promise` which will be
+     * resolved with `.finally()` chained.
+     */
+    finally: Promise<ResultType>['finally'];
+
+    /** Appends new custom $graphLookup operator(s) to this aggregate pipeline, performing a recursive search on a collection. */
+    graphLookup(options: PipelineStage.GraphLookup['$graphLookup']): this;
+
+    /** Appends new custom $group operator to this aggregate pipeline. */
+    group(arg: PipelineStage.Group['$group']): this;
+
+    /** Sets the hint option for the aggregation query */
+    hint(value: Record<string, unknown> | string): this;
+
+    /**
+     * Appends a new $limit operator to this aggregate pipeline.
+     * @param num maximum number of records to pass to the next stage
+     */
+    limit(num: PipelineStage.Limit['$limit']): this;
+
+    /** Appends new custom $lookup operator to this aggregate pipeline. */
+    lookup(options: PipelineStage.Lookup['$lookup']): this;
+
+    /**
+     * Appends a new custom $match operator to this aggregate pipeline.
+     * @param arg $match operator contents
+     */
+    match(arg: PipelineStage.Match['$match']): this;
+
+    /**
+     * Binds this aggregate to a model.
+     * @param model the model to which the aggregate is to be bound
+     */
+    model(model: Model<any>): this;
+
+    /**
+     * Returns the current model bound to this aggregate object
+     */
+    model(): Model<any>;
+
+    /** Appends a new $geoNear operator to this aggregate pipeline. */
+    near(arg: PipelineStage.GeoNear['$geoNear']): this;
+
+    /** Returns the current pipeline */
+    pipeline(): PipelineStage[];
+
+    /** Appends a new $project operator to this aggregate pipeline. */
+    project(arg: PipelineStage.Project['$project']): this;
+
+    /** Sets the readPreference option for the aggregation query. */
+    read(pref: mongodb.ReadPreferenceLike): this;
+
+    /** Sets the readConcern level for the aggregation query. */
+    readConcern(level: string): this;
+
+    /** Appends a new $redact operator to this aggregate pipeline. */
+    redact(expression: PipelineStage.Redact['$redact'], thenExpr: '$$DESCEND' | '$$PRUNE' | '$$KEEP' | AnyObject, elseExpr: '$$DESCEND' | '$$PRUNE' | '$$KEEP' | AnyObject): this;
+
+    /** Appends a new $replaceRoot operator to this aggregate pipeline. */
+    replaceRoot(newRoot: PipelineStage.ReplaceRoot['$replaceRoot']['newRoot'] | string): this;
+
+    /**
+     * Helper for [Atlas Text Search](https://www.mongodb.com/docs/atlas/atlas-search/tutorial/)'s
+     * `$search` stage.
+     */
+    search(options: PipelineStage.Search['$search']): this;
+
+    /** Lets you set arbitrary options, for middlewares or plugins. */
+    option(value: AggregateOptions): this;
+
+    /** Appends new custom $sample operator to this aggregate pipeline. */
+    sample(arg: PipelineStage.Sample['$sample']['size']): this;
+
+    /** Sets the session for this aggregation. Useful for [transactions](/docs/transactions.html). */
+    session(session: mongodb.ClientSession | null): this;
+
+    /**
+     * Appends a new $skip operator to this aggregate pipeline.
+     * @param num number of records to skip before next stage
+     */
+    skip(num: PipelineStage.Skip['$skip']): this;
+
+    /** Appends a new $sort operator to this aggregate pipeline. */
+    sort(arg: string | Record<string, SortValues> | PipelineStage.Sort['$sort']): this;
+
+    /** Provides promise for aggregate. */
+    then: Promise<ResultType>['then'];
+
+    /**
+     * Appends a new $sortByCount operator to this aggregate pipeline. Accepts either a string field name
+     * or a pipeline object.
+     */
+    sortByCount(arg: string | PipelineStage.SortByCount['$sortByCount']): this;
+
+    /** Appends new $unionWith operator to this aggregate pipeline. */
+    unionWith(options: PipelineStage.UnionWith['$unionWith']): this;
+
+    /** Appends new custom $unwind operator(s) to this aggregate pipeline. */
+    unwind(...args: PipelineStage.Unwind['$unwind'][]): this;
+  }
+}
diff --git a/backend/node_modules/mongoose/types/augmentations.d.ts b/backend/node_modules/mongoose/types/augmentations.d.ts
new file mode 100644
index 0000000..82aca58
--- /dev/null
+++ b/backend/node_modules/mongoose/types/augmentations.d.ts
@@ -0,0 +1,9 @@
+// this import is required so that types get merged instead of completely overwritten
+import 'bson';
+
+declare module 'bson' {
+  interface ObjectId {
+    /** Mongoose automatically adds a conveniency "_id" getter on the base ObjectId class */
+    _id: this;
+  }
+}
diff --git a/backend/node_modules/mongoose/types/callback.d.ts b/backend/node_modules/mongoose/types/callback.d.ts
new file mode 100644
index 0000000..370379a
--- /dev/null
+++ b/backend/node_modules/mongoose/types/callback.d.ts
@@ -0,0 +1,8 @@
+declare module 'mongoose' {
+  type CallbackError = NativeError | null;
+
+  type Callback<T = any> = (error: CallbackError, result: T) => void;
+
+  type CallbackWithoutResult = (error: CallbackError) => void;
+  type CallbackWithoutResultAndOptionalError = (error?: CallbackError) => void;
+}
diff --git a/backend/node_modules/mongoose/types/collection.d.ts b/backend/node_modules/mongoose/types/collection.d.ts
new file mode 100644
index 0000000..14a09ba
--- /dev/null
+++ b/backend/node_modules/mongoose/types/collection.d.ts
@@ -0,0 +1,44 @@
+declare module 'mongoose' {
+  import mongodb = require('mongodb');
+
+  /*
+   * section collection.js
+   */
+  interface CollectionBase<T extends mongodb.Document> extends mongodb.Collection<T> {
+    /*
+     * Abstract methods. Some of these are already defined on the
+     * mongodb.Collection interface so they've been commented out.
+     */
+    ensureIndex(...args: any[]): any;
+    findAndModify(...args: any[]): any;
+    getIndexes(...args: any[]): any;
+
+    /** The collection name */
+    collectionName: string;
+    /** The Connection instance */
+    conn: Connection;
+    /** The collection name */
+    name: string;
+  }
+
+  /*
+   * section drivers/node-mongodb-native/collection.js
+   */
+  interface Collection<T extends mongodb.Document = mongodb.Document> extends CollectionBase<T> {
+    /**
+     * Collection constructor
+     * @param name name of the collection
+     * @param conn A MongooseConnection instance
+     * @param opts optional collection options
+     */
+    // eslint-disable-next-line @typescript-eslint/no-misused-new
+    new(name: string, conn: Connection, opts?: any): Collection<T>;
+    /** Formatter for debug print args */
+    $format(arg: any, color?: boolean, shell?: boolean): string;
+    /** Debug print helper */
+    $print(name: string, i: string | number, args: any[], color?: boolean, shell?: boolean): void;
+    /** Retrieves information about this collections indexes. */
+    getIndexes(): ReturnType<mongodb.Collection<T>['indexInformation']>;
+  }
+  let Collection: Collection;
+}
diff --git a/backend/node_modules/mongoose/types/connection.d.ts b/backend/node_modules/mongoose/types/connection.d.ts
new file mode 100644
index 0000000..e37914b
--- /dev/null
+++ b/backend/node_modules/mongoose/types/connection.d.ts
@@ -0,0 +1,259 @@
+declare module 'mongoose' {
+  import mongodb = require('mongodb');
+  import events = require('events');
+
+  /** The Mongoose module's default connection. Equivalent to `mongoose.connections[0]`, see [`connections`](#mongoose_Mongoose-connections). */
+  const connection: Connection;
+
+  /** An array containing all connections associated with this Mongoose instance. */
+  const connections: Connection[];
+
+  /** Opens Mongoose's default connection to MongoDB, see [connections docs](https://mongoosejs.com/docs/connections.html) */
+  function connect(uri: string, options?: ConnectOptions): Promise<Mongoose>;
+
+  /** Creates a Connection instance. */
+  function createConnection(uri: string, options?: ConnectOptions): Connection;
+  function createConnection(): Connection;
+
+  function disconnect(): Promise<void>;
+
+  /**
+   * Connection ready state
+   *
+   * - 0 = disconnected
+   * - 1 = connected
+   * - 2 = connecting
+   * - 3 = disconnecting
+   * - 99 = uninitialized
+   */
+  enum ConnectionStates {
+    disconnected = 0,
+    connected = 1,
+    connecting = 2,
+    disconnecting = 3,
+    uninitialized = 99,
+  }
+
+  /** Expose connection states for user-land */
+  const STATES: typeof ConnectionStates;
+
+  interface ConnectOptions extends mongodb.MongoClientOptions {
+    /** Set to false to [disable buffering](http://mongoosejs.com/docs/faq.html#callback_never_executes) on all models associated with this connection. */
+    bufferCommands?: boolean;
+    /** The name of the database you want to use. If not provided, Mongoose uses the database name from connection string. */
+    dbName?: string;
+    /** username for authentication, equivalent to `options.auth.user`. Maintained for backwards compatibility. */
+    user?: string;
+    /** password for authentication, equivalent to `options.auth.password`. Maintained for backwards compatibility. */
+    pass?: string;
+    /** Set to false to disable automatic index creation for all models associated with this connection. */
+    autoIndex?: boolean;
+    /** Set to `false` to disable Mongoose automatically calling `createCollection()` on every model created on this connection. */
+    autoCreate?: boolean;
+    /**
+     * Sanitizes query filters against [query selector injection attacks](
+     * https://thecodebarbarian.com/2014/09/04/defending-against-query-selector-injection-attacks.html
+     * ) by wrapping any nested objects that have a property whose name starts with $ in a $eq.
+     */
+    sanitizeFilter?: boolean;
+  }
+
+  class Connection extends events.EventEmitter implements SessionStarter {
+    /** Returns a promise that resolves when this connection successfully connects to MongoDB */
+    asPromise(): Promise<this>;
+
+    /** Closes the connection */
+    close(force?: boolean): Promise<void>;
+
+    /** Closes and destroys the connection. Connection once destroyed cannot be reopened */
+    destroy(force?: boolean): Promise<void>;
+
+    /** Retrieves a collection, creating it if not cached. */
+    collection<T extends AnyObject = AnyObject>(name: string, options?: mongodb.CreateCollectionOptions): Collection<T>;
+
+    /** A hash of the collections associated with this connection */
+    readonly collections: { [index: string]: Collection };
+
+    /** A hash of the global options that are associated with this connection */
+    readonly config: any;
+
+    /** The mongodb.Db instance, set when the connection is opened */
+    readonly db: mongodb.Db | undefined;
+
+    /**
+     * Helper for `createCollection()`. Will explicitly create the given collection
+     * with specified options. Used to create [capped collections](https://www.mongodb.com/docs/manual/core/capped-collections/)
+     * and [views](https://www.mongodb.com/docs/manual/core/views/) from mongoose.
+     */
+    createCollection<T extends AnyObject = AnyObject>(name: string, options?: mongodb.CreateCollectionOptions): Promise<mongodb.Collection<T>>;
+
+    /**
+     * https://mongoosejs.com/docs/api/connection.html#Connection.prototype.createCollections()
+     */
+    createCollections(continueOnError?: boolean): Promise<Record<string, Error | mongodb.Collection<any>>>;
+
+    /**
+     * Removes the model named `name` from this connection, if it exists. You can
+     * use this function to clean up any models you created in your tests to
+     * prevent OverwriteModelErrors.
+     */
+    deleteModel(name: string | RegExp): this;
+
+    /**
+     * Helper for `dropCollection()`. Will delete the given collection, including
+     * all documents and indexes.
+     */
+    dropCollection(collection: string): Promise<void>;
+
+    /**
+     * Helper for `dropDatabase()`. Deletes the given database, including all
+     * collections, documents, and indexes.
+     */
+    dropDatabase(): Promise<void>;
+
+    /** Gets the value of the option `key`. */
+    get(key: string): any;
+
+    /**
+     * Returns the [MongoDB driver `MongoClient`](https://mongodb.github.io/node-mongodb-native/4.9/classes/MongoClient.html) instance
+     * that this connection uses to talk to MongoDB.
+     */
+    getClient(): mongodb.MongoClient;
+
+    /**
+     * The host name portion of the URI. If multiple hosts, such as a replica set,
+     * this will contain the first host name in the URI
+     */
+    readonly host: string;
+
+    /**
+     * A number identifier for this connection. Used for debugging when
+     * you have [multiple connections](/docs/connections.html#multiple_connections).
+     */
+    readonly id: number;
+
+    /**
+     * Helper for MongoDB Node driver's `listCollections()`.
+     * Returns an array of collection names.
+     */
+    listCollections(): Promise<Pick<mongodb.CollectionInfo, 'name' | 'type'>[]>;
+
+    /**
+     * Helper for MongoDB Node driver's `listDatabases()`.
+     * Returns an array of database names.
+     */
+    listDatabases(): Promise<mongodb.ListDatabasesResult>;
+
+    /**
+     * A [POJO](https://masteringjs.io/tutorials/fundamentals/pojo) containing
+     * a map from model names to models. Contains all models that have been
+     * added to this connection using [`Connection#model()`](/docs/api/connection.html#connection_Connection-model).
+     */
+    readonly models: Readonly<{ [index: string]: Model<any> }>;
+
+    /** Defines or retrieves a model. */
+    model<TSchema extends Schema = any>(
+      name: string,
+      schema?: TSchema,
+      collection?: string,
+      options?: CompileModelOptions
+    ): Model<
+    InferSchemaType<TSchema>,
+    ObtainSchemaGeneric<TSchema, 'TQueryHelpers'>,
+    ObtainSchemaGeneric<TSchema, 'TInstanceMethods'>,
+    {},
+    HydratedDocument<
+    InferSchemaType<TSchema>,
+    ObtainSchemaGeneric<TSchema, 'TInstanceMethods'>,
+    ObtainSchemaGeneric<TSchema, 'TQueryHelpers'>
+    >,
+    TSchema> & ObtainSchemaGeneric<TSchema, 'TStaticMethods'>;
+    model<T, U, TQueryHelpers = {}>(
+      name: string,
+      schema?: Schema<T, any, any, TQueryHelpers, any, any, any>,
+      collection?: string,
+      options?: CompileModelOptions
+    ): U;
+    model<T>(name: string, schema?: Schema<T, any, any>, collection?: string, options?: CompileModelOptions): Model<T>;
+
+    /** Returns an array of model names created on this connection. */
+    modelNames(): Array<string>;
+
+    /** The name of the database this connection points to. */
+    readonly name: string;
+
+    /** Opens the connection with a URI using `MongoClient.connect()`. */
+    openUri(uri: string, options?: ConnectOptions): Promise<Connection>;
+
+    /** The password specified in the URI */
+    readonly pass: string;
+
+    /**
+     * The port portion of the URI. If multiple hosts, such as a replica set,
+     * this will contain the port from the first host name in the URI.
+     */
+    readonly port: number;
+
+    /** Declares a plugin executed on all schemas you pass to `conn.model()` */
+    plugin<S extends Schema = Schema, O = AnyObject>(fn: (schema: S, opts?: any) => void, opts?: O): Connection;
+
+    /** The plugins that will be applied to all models created on this connection. */
+    plugins: Array<any>;
+
+    /**
+     * Connection ready state
+     *
+     * - 0 = disconnected
+     * - 1 = connected
+     * - 2 = connecting
+     * - 3 = disconnecting
+     * - 99 = uninitialized
+     */
+    readonly readyState: ConnectionStates;
+
+    /** Sets the value of the option `key`. */
+    set(key: string, value: any): any;
+
+    /**
+     * Set the [MongoDB driver `MongoClient`](https://mongodb.github.io/node-mongodb-native/4.9/classes/MongoClient.html) instance
+     * that this connection uses to talk to MongoDB. This is useful if you already have a MongoClient instance, and want to
+     * reuse it.
+     */
+    setClient(client: mongodb.MongoClient): this;
+
+    /**
+     * _Requires MongoDB >= 3.6.0._ Starts a [MongoDB session](https://www.mongodb.com/docs/manual/release-notes/3.6/#client-sessions)
+     * for benefits like causal consistency, [retryable writes](https://www.mongodb.com/docs/manual/core/retryable-writes/),
+     * and [transactions](http://thecodebarbarian.com/a-node-js-perspective-on-mongodb-4-transactions.html).
+     */
+    startSession(options?: ClientSessionOptions): Promise<ClientSession>;
+
+    /**
+     * Makes the indexes in MongoDB match the indexes defined in every model's
+     * schema. This function will drop any indexes that are not defined in
+     * the model's schema except the `_id` index, and build any indexes that
+     * are in your schema but not in MongoDB.
+     */
+    syncIndexes(options?: SyncIndexesOptions): Promise<ConnectionSyncIndexesResult>;
+
+    /**
+     * _Requires MongoDB >= 3.6.0._ Executes the wrapped async function
+     * in a transaction. Mongoose will commit the transaction if the
+     * async function executes successfully and attempt to retry if
+     * there was a retryable error.
+     */
+    transaction<ReturnType = unknown>(fn: (session: mongodb.ClientSession) => Promise<ReturnType>, options?: mongodb.TransactionOptions): Promise<ReturnType>;
+
+    /** Switches to a different database using the same connection pool. */
+    useDb(name: string, options?: { useCache?: boolean, noListener?: boolean }): Connection;
+
+    /** The username specified in the URI */
+    readonly user: string;
+
+    /** Watches the entire underlying database for changes. Similar to [`Model.watch()`](/docs/api/model.html#model_Model-watch). */
+    watch<ResultType extends mongodb.Document = any>(pipeline?: Array<any>, options?: mongodb.ChangeStreamOptions): mongodb.ChangeStream<ResultType>;
+
+    withSession<T = any>(executor: (session: ClientSession) => Promise<T>): Promise<T>;
+  }
+
+}
diff --git a/backend/node_modules/mongoose/types/cursor.d.ts b/backend/node_modules/mongoose/types/cursor.d.ts
new file mode 100644
index 0000000..8c76599
--- /dev/null
+++ b/backend/node_modules/mongoose/types/cursor.d.ts
@@ -0,0 +1,67 @@
+declare module 'mongoose' {
+
+  import stream = require('stream');
+
+  type CursorFlag = 'tailable' | 'oplogReplay' | 'noCursorTimeout' | 'awaitData' | 'partial';
+
+  interface EachAsyncOptions {
+    parallel?: number;
+    batchSize?: number;
+    continueOnError?: boolean;
+    signal?: AbortSignal;
+  }
+
+  class Cursor<DocType = any, Options = never, NextResultType = DocType | null> extends stream.Readable {
+    [Symbol.asyncIterator](): Cursor<IteratorResult<DocType>, Options, IteratorResult<DocType>>;
+
+    [Symbol.asyncDispose](): Promise<void>;
+
+    /**
+     * Adds a [cursor flag](https://mongodb.github.io/node-mongodb-native/4.9/classes/FindCursor.html#addCursorFlag).
+     * Useful for setting the `noCursorTimeout` and `tailable` flags.
+     */
+    addCursorFlag(flag: CursorFlag, value: boolean): this;
+
+    /**
+     * Marks this cursor as closed. Will stop streaming and subsequent calls to
+     * `next()` will error.
+     */
+    close(): Promise<void>;
+
+    /**
+     * Destroy this cursor, closing the underlying cursor. Will stop streaming
+     * and subsequent calls to `next()` will error.
+     */
+    destroy(): this;
+
+    /**
+     * Rewind this cursor to its uninitialized state. Any options that are present on the cursor will
+     * remain in effect. Iterating this cursor will cause new queries to be sent to the server, even
+     * if the resultant data has already been retrieved by this cursor.
+     */
+    rewind(): this;
+
+    /**
+     * Execute `fn` for every document(s) in the cursor. If batchSize is provided
+     * `fn` will be executed for each batch of documents. If `fn` returns a promise,
+     * will wait for the promise to resolve before iterating on to the next one.
+     * Returns a promise that resolves when done.
+     */
+    eachAsync(fn: (doc: DocType[], i: number) => any, options: EachAsyncOptions & { batchSize: number }): Promise<void>;
+    eachAsync(fn: (doc: DocType, i: number) => any, options?: EachAsyncOptions): Promise<void>;
+
+    /**
+     * Registers a transform function which subsequently maps documents retrieved
+     * via the streams interface or `.next()`
+     */
+    map<ResultType>(fn: (res: DocType) => ResultType): Cursor<ResultType, Options>;
+
+    /**
+     * Get the next document from this cursor. Will return `null` when there are
+     * no documents left.
+     */
+    next(): Promise<NextResultType>;
+
+    options: Options;
+  }
+}
diff --git a/backend/node_modules/mongoose/types/document.d.ts b/backend/node_modules/mongoose/types/document.d.ts
new file mode 100644
index 0000000..e52169d
--- /dev/null
+++ b/backend/node_modules/mongoose/types/document.d.ts
@@ -0,0 +1,292 @@
+declare module 'mongoose' {
+  import mongodb = require('mongodb');
+
+  /** A list of paths to skip. If set, Mongoose will validate every modified path that is not in this list. */
+  type pathsToSkip = string[] | string;
+
+  interface DocumentSetOptions {
+    merge?: boolean;
+
+    [key: string]: any;
+  }
+
+  class ModifiedPathsSnapshot {}
+
+  /**
+   * Generic types for Document:
+   * *  T - the type of _id
+   * *  TQueryHelpers - Object with any helpers that should be mixed into the Query type
+   * *  DocType - the type of the actual Document created
+   */
+  class Document<T = unknown, TQueryHelpers = any, DocType = any> {
+    constructor(doc?: any);
+
+    /** This documents _id. */
+    _id: T;
+
+    /** Assert that a given path or paths is populated. Throws an error if not populated. */
+    $assertPopulated<Paths = {}>(path: string | string[], values?: Partial<Paths>): Omit<this, keyof Paths> & Paths;
+
+    /** Clear the document's modified paths. */
+    $clearModifiedPaths(): this;
+
+    /** Returns a deep clone of this document */
+    $clone(): this;
+
+    /**
+     * Creates a snapshot of this document's internal change tracking state. You can later
+     * reset this document's change tracking state using `$restoreModifiedPathsSnapshot()`.
+     */
+    $createModifiedPathsSnapshot(): ModifiedPathsSnapshot;
+
+    /* Get all subdocs (by bfs) */
+    $getAllSubdocs(): Document[];
+
+    /** Don't run validation on this path or persist changes to this path. */
+    $ignore(path: string): void;
+
+    /** Checks if a path is set to its default. */
+    $isDefault(path: string): boolean;
+
+    /** Getter/setter, determines whether the document was removed or not. */
+    $isDeleted(val?: boolean): boolean;
+
+    /** Returns an array of all populated documents associated with the query */
+    $getPopulatedDocs(): Document[];
+
+    /**
+     * Increments the numeric value at `path` by the given `val`.
+     * When you call `save()` on this document, Mongoose will send a
+     * `$inc` as opposed to a `$set`.
+     */
+    $inc(path: string | string[], val?: number): this;
+
+    /**
+     * Returns true if the given path is nullish or only contains empty objects.
+     * Useful for determining whether this subdoc will get stripped out by the
+     * [minimize option](/docs/guide.html#minimize).
+     */
+    $isEmpty(path: string): boolean;
+
+    /** Checks if a path is invalid */
+    $isValid(path: string): boolean;
+
+    /**
+     * Empty object that you can use for storing properties on the document. This
+     * is handy for passing data to middleware without conflicting with Mongoose
+     * internals.
+     */
+    $locals: Record<string, unknown>;
+
+    /** Marks a path as valid, removing existing validation errors. */
+    $markValid(path: string): void;
+
+    /** Returns the model with the given name on this document's associated connection. */
+    $model<ModelType = Model<unknown>>(name: string): ModelType;
+    $model<ModelType = Model<DocType>>(): ModelType;
+
+    /**
+     * A string containing the current operation that Mongoose is executing
+     * on this document. Can be `null`, `'save'`, `'validate'`, or `'remove'`.
+     */
+    $op: 'save' | 'validate' | 'remove' | null;
+
+    /**
+     * Restore this document's change tracking state to the given snapshot.
+     * Note that `$restoreModifiedPathsSnapshot()` does **not** modify the document's
+     * properties, just resets the change tracking state.
+     */
+    $restoreModifiedPathsSnapshot(snapshot: ModifiedPathsSnapshot): this;
+
+    /**
+     * Getter/setter around the session associated with this document. Used to
+     * automatically set `session` if you `save()` a doc that you got from a
+     * query with an associated session.
+     */
+    $session(session?: ClientSession | null): ClientSession | null;
+
+    /** Alias for `set()`, used internally to avoid conflicts */
+    $set(path: string | Record<string, any>, val: any, type: any, options?: DocumentSetOptions): this;
+    $set(path: string | Record<string, any>, val: any, options?: DocumentSetOptions): this;
+    $set(value: string | Record<string, any>): this;
+
+    /** Set this property to add additional query filters when Mongoose saves this document and `isNew` is false. */
+    $where: Record<string, unknown>;
+
+    /** If this is a discriminator model, `baseModelName` is the name of the base model. */
+    baseModelName?: string;
+
+    /** Collection the model uses. */
+    collection: Collection;
+
+    /** Connection the model uses. */
+    db: Connection;
+
+    /** Removes this document from the db. */
+    deleteOne(options?: QueryOptions): QueryWithHelpers<
+      mongodb.DeleteResult,
+      this,
+      TQueryHelpers,
+      DocType,
+      'deleteOne'
+    >;
+
+    /**
+     * Takes a populated field and returns it to its unpopulated state. If called with
+     * no arguments, then all populated fields are returned to their unpopulated state.
+     */
+    depopulate<Paths = {}>(path?: string | string[]): MergeType<this, Paths>;
+
+    /**
+     * Returns the list of paths that have been directly modified. A direct
+     * modified path is a path that you explicitly set, whether via `doc.foo = 'bar'`,
+     * `Object.assign(doc, { foo: 'bar' })`, or `doc.set('foo', 'bar')`.
+     */
+    directModifiedPaths(): Array<string>;
+
+    /**
+     * Returns true if this document is equal to another document.
+     *
+     * Documents are considered equal when they have matching `_id`s, unless neither
+     * document has an `_id`, in which case this function falls back to using
+     * `deepEqual()`.
+     */
+    equals(doc: Document<T>): boolean;
+
+    /** Returns the current validation errors. */
+    errors?: Error.ValidationError;
+
+    /** Returns the value of a path. */
+    get<T extends keyof DocType>(path: T, type?: any, options?: any): DocType[T];
+    get(path: string, type?: any, options?: any): any;
+
+    /**
+     * Returns the changes that happened to the document
+     * in the format that will be sent to MongoDB.
+     */
+    getChanges(): UpdateQuery<this>;
+
+    /** The string version of this documents _id. */
+    id?: any;
+
+    /** Signal that we desire an increment of this documents version. */
+    increment(): this;
+
+    /**
+    * Initializes the document without setters or marking anything modified.
+    * Called internally after a document is returned from mongodb. Normally,
+    * you do **not** need to call this function on your own.
+    */
+    init(obj: AnyObject, opts?: AnyObject): this;
+
+    /** Marks a path as invalid, causing validation to fail. */
+    invalidate<T extends keyof DocType>(path: T, errorMsg: string | NativeError, value?: any, kind?: string): NativeError | null;
+    invalidate(path: string, errorMsg: string | NativeError, value?: any, kind?: string): NativeError | null;
+
+    /** Returns true if `path` was directly set and modified, else false. */
+    isDirectModified<T extends keyof DocType>(path: T | Array<T>): boolean;
+    isDirectModified(path: string | Array<string>): boolean;
+
+    /** Checks if `path` was explicitly selected. If no projection, always returns true. */
+    isDirectSelected<T extends keyof DocType>(path: T): boolean;
+    isDirectSelected(path: string): boolean;
+
+    /** Checks if `path` is in the `init` state, that is, it was set by `Document#init()` and not modified since. */
+    isInit<T extends keyof DocType>(path: T): boolean;
+    isInit(path: string): boolean;
+
+    /**
+     * Returns true if any of the given paths are modified, else false. If no arguments, returns `true` if any path
+     * in this document is modified.
+     */
+    isModified<T extends keyof DocType>(path?: T | Array<T>, options?: { ignoreAtomics?: boolean } | null): boolean;
+    isModified(path?: string | Array<string>, options?: { ignoreAtomics?: boolean } | null): boolean;
+
+    /** Boolean flag specifying if the document is new. */
+    isNew: boolean;
+
+    /** Checks if `path` was selected in the source query which initialized this document. */
+    isSelected<T extends keyof DocType>(path: T): boolean;
+    isSelected(path: string): boolean;
+
+    /** Marks the path as having pending changes to write to the db. */
+    markModified<T extends keyof DocType>(path: T, scope?: any): void;
+    markModified(path: string, scope?: any): void;
+
+    /** Returns the model with the given name on this document's associated connection. */
+    model<ModelType = Model<unknown>>(name: string): ModelType;
+    model<ModelType = Model<DocType>>(): ModelType;
+
+    /** Returns the list of paths that have been modified. */
+    modifiedPaths(options?: { includeChildren?: boolean }): Array<string>;
+
+    /**
+     * Overwrite all values in this document with the values of `obj`, except
+     * for immutable properties. Behaves similarly to `set()`, except for it
+     * unsets all properties that aren't in `obj`.
+     */
+    overwrite(obj: AnyObject): this;
+
+    /**
+     * If this document is a subdocument or populated document, returns the
+     * document's parent. Returns undefined otherwise.
+     */
+    $parent(): Document | undefined;
+
+    /** Populates document references. */
+    populate<Paths = {}>(path: string | PopulateOptions | (string | PopulateOptions)[]): Promise<MergeType<this, Paths>>;
+    populate<Paths = {}>(path: string, select?: string | AnyObject, model?: Model<any>, match?: AnyObject, options?: PopulateOptions): Promise<MergeType<this, Paths>>;
+
+    /** Gets _id(s) used during population of the given `path`. If the path was not populated, returns `undefined`. */
+    populated(path: string): any;
+
+    /** Sends a replaceOne command with this document `_id` as the query selector. */
+    replaceOne(replacement?: AnyObject, options?: QueryOptions | null): Query<any, this>;
+
+    /** Saves this document by inserting a new document into the database if [document.isNew](/docs/api/document.html#document_Document-isNew) is `true`, or sends an [updateOne](/docs/api/document.html#document_Document-updateOne) operation with just the modified paths if `isNew` is `false`. */
+    save(options?: SaveOptions): Promise<this>;
+
+    /** The document's schema. */
+    schema: Schema;
+
+    /** Sets the value of a path, or many paths. */
+    set<T extends keyof DocType>(path: T, val: DocType[T], type: any, options?: DocumentSetOptions): this;
+    set(path: string | Record<string, any>, val: any, type: any, options?: DocumentSetOptions): this;
+    set(path: string | Record<string, any>, val: any, options?: DocumentSetOptions): this;
+    set(value: string | Record<string, any>): this;
+
+    /** The return value of this method is used in calls to JSON.stringify(doc). */
+    toJSON(options?: ToObjectOptions & { flattenMaps?: true, flattenObjectIds?: false }): FlattenMaps<Require_id<DocType>>;
+    toJSON(options: ToObjectOptions & { flattenObjectIds: false }): FlattenMaps<Require_id<DocType>>;
+    toJSON(options: ToObjectOptions & { flattenObjectIds: true }): ObjectIdToString<FlattenMaps<Require_id<DocType>>>;
+    toJSON(options: ToObjectOptions & { flattenMaps: false }): Require_id<DocType>;
+    toJSON(options: ToObjectOptions & { flattenMaps: false; flattenObjectIds: true }): ObjectIdToString<Require_id<DocType>>;
+
+    toJSON<T = Require_id<DocType>>(options?: ToObjectOptions & { flattenMaps?: true, flattenObjectIds?: false }): FlattenMaps<T>;
+    toJSON<T = Require_id<DocType>>(options: ToObjectOptions & { flattenObjectIds: false }): FlattenMaps<T>;
+    toJSON<T = Require_id<DocType>>(options: ToObjectOptions & { flattenObjectIds: true }): ObjectIdToString<FlattenMaps<T>>;
+    toJSON<T = Require_id<DocType>>(options: ToObjectOptions & { flattenMaps: false }): T;
+    toJSON<T = Require_id<DocType>>(options: ToObjectOptions & { flattenMaps: false; flattenObjectIds: true }): ObjectIdToString<T>;
+
+    /** Converts this document into a plain-old JavaScript object ([POJO](https://masteringjs.io/tutorials/fundamentals/pojo)). */
+    toObject(options?: ToObjectOptions): Require_id<DocType>;
+    toObject<T>(options?: ToObjectOptions): Require_id<T>;
+
+    /** Clears the modified state on the specified path. */
+    unmarkModified<T extends keyof DocType>(path: T): void;
+    unmarkModified(path: string): void;
+
+    /** Sends an updateOne command with this document `_id` as the query selector. */
+    updateOne(update?: UpdateQuery<this> | UpdateWithAggregationPipeline, options?: QueryOptions | null): Query<any, this>;
+
+    /** Executes registered validation rules for this document. */
+    validate<T extends keyof DocType>(pathsToValidate?: T | T[], options?: AnyObject): Promise<void>;
+    validate(pathsToValidate?: pathsToValidate, options?: AnyObject): Promise<void>;
+    validate(options: { pathsToSkip?: pathsToSkip }): Promise<void>;
+
+    /** Executes registered validation rules (skipping asynchronous validators) for this document. */
+    validateSync(options: { pathsToSkip?: pathsToSkip, [k: string]: any }): Error.ValidationError | null;
+    validateSync<T extends keyof DocType>(pathsToValidate?: T | T[], options?: AnyObject): Error.ValidationError | null;
+    validateSync(pathsToValidate?: pathsToValidate, options?: AnyObject): Error.ValidationError | null;
+  }
+}
diff --git a/backend/node_modules/mongoose/types/error.d.ts b/backend/node_modules/mongoose/types/error.d.ts
new file mode 100644
index 0000000..3fec7c4
--- /dev/null
+++ b/backend/node_modules/mongoose/types/error.d.ts
@@ -0,0 +1,133 @@
+declare class NativeError extends global.Error { }
+
+declare module 'mongoose' {
+  import mongodb = require('mongodb');
+
+  type CastError = Error.CastError;
+  type SyncIndexesError = Error.SyncIndexesError;
+
+  export class MongooseError extends global.Error {
+    constructor(msg: string);
+
+    /** The type of error. "MongooseError" for generic errors. */
+    name: string;
+
+    static messages: any;
+
+    static Messages: any;
+  }
+
+  class Error extends MongooseError { }
+
+  namespace Error {
+
+    export class CastError extends MongooseError {
+      name: 'CastError';
+      stringValue: string;
+      kind: string;
+      value: any;
+      path: string;
+      reason?: NativeError | null;
+
+      constructor(type: string, value: any, path: string, reason?: NativeError, schemaType?: SchemaType);
+    }
+    export class SyncIndexesError extends MongooseError {
+      name: 'SyncIndexesError';
+      errors?: Record<string, mongodb.MongoServerError>;
+
+      constructor(type: string, value: any, path: string, reason?: NativeError, schemaType?: SchemaType);
+    }
+
+    export class DivergentArrayError extends MongooseError {
+      name: 'DivergentArrayError';
+    }
+
+    export class MissingSchemaError extends MongooseError {
+      name: 'MissingSchemaError';
+    }
+
+    export class DocumentNotFoundError extends MongooseError {
+      name: 'DocumentNotFoundError';
+      result: any;
+      numAffected: number;
+      filter: any;
+      query: any;
+    }
+
+    export class ObjectExpectedError extends MongooseError {
+      name: 'ObjectExpectedError';
+      path: string;
+    }
+
+    export class ObjectParameterError extends MongooseError {
+      name: 'ObjectParameterError';
+    }
+
+    export class OverwriteModelError extends MongooseError {
+      name: 'OverwriteModelError';
+    }
+
+    export class ParallelSaveError extends MongooseError {
+      name: 'ParallelSaveError';
+    }
+
+    export class ParallelValidateError extends MongooseError {
+      name: 'ParallelValidateError';
+    }
+
+    export class MongooseServerSelectionError extends MongooseError {
+      name: 'MongooseServerSelectionError';
+    }
+
+    export class StrictModeError extends MongooseError {
+      name: 'StrictModeError';
+      isImmutableError: boolean;
+      path: string;
+    }
+
+    export class ValidationError extends MongooseError {
+      name: 'ValidationError';
+
+      errors: { [path: string]: ValidatorError | CastError };
+      addError: (path: string, error: ValidatorError | CastError) => void;
+
+      constructor(instance?: MongooseError);
+    }
+
+    export class ValidatorError extends MongooseError {
+      name: 'ValidatorError';
+      properties: {
+        message: string,
+        type?: string,
+        path?: string,
+        value?: any,
+        reason?: any
+      };
+      kind: string;
+      path: string;
+      value: any;
+      reason?: MongooseError | null;
+
+      constructor(properties: {
+        message?: string,
+        type?: string,
+        path?: string,
+        value?: any,
+        reason?: any
+      });
+    }
+
+    export class VersionError extends MongooseError {
+      name: 'VersionError';
+      version: number;
+      modifiedPaths: Array<string>;
+
+      constructor(doc: Document, currentVersion: number, modifiedPaths: Array<string>);
+    }
+
+    export class StrictPopulateError extends MongooseError {
+      name: 'StrictPopulateError';
+      path: string;
+    }
+  }
+}
diff --git a/backend/node_modules/mongoose/types/expressions.d.ts b/backend/node_modules/mongoose/types/expressions.d.ts
new file mode 100644
index 0000000..998e5f0
--- /dev/null
+++ b/backend/node_modules/mongoose/types/expressions.d.ts
@@ -0,0 +1,3053 @@
+declare module 'mongoose' {
+
+  /**
+   * [Expressions reference](https://www.mongodb.com/docs/manual/meta/aggregation-quick-reference/#expressions)
+   */
+  type AggregationVariables =
+    SpecialPathVariables |
+    '$$NOW' |
+    '$$CLUSTER_TIME' |
+    '$$DESCEND' |
+    '$$PRUNE' |
+    '$$KEEP';
+
+  type SpecialPathVariables =
+    '$$ROOT' |
+    '$$CURRENT' |
+    '$$REMOVE';
+
+  export namespace Expression {
+    export interface Abs {
+      /**
+       * Returns the absolute value of a number.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/abs/#mongodb-expression-exp.-abs
+       */
+      $abs: Path | ArithmeticExpressionOperator;
+    }
+
+    export interface Add {
+      /**
+       * Adds numbers to return the sum, or adds numbers and a date to return a new date. If adding numbers and a date, treats the numbers as milliseconds. Accepts any number of argument expressions, but at most, one expression can resolve to a date.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/add/#mongodb-expression-exp.-add
+       */
+      $add: Expression[];
+    }
+
+    export interface Ceil {
+      /**
+       * Returns the smallest integer greater than or equal to the specified number.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/ceil/#mongodb-expression-exp.-ceil
+       */
+      $ceil: NumberExpression;
+    }
+
+    export interface Divide {
+      /**
+       * Returns the result of dividing the first number by the second. Accepts two argument expressions.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/divide/#mongodb-expression-exp.-divide
+       */
+      $divide: NumberExpression[];
+    }
+
+    export interface Exp {
+      /**
+       * Raises e to the specified exponent.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/exp/#mongodb-expression-exp.-exp
+       */
+      $exp: NumberExpression;
+    }
+
+    export interface Floor {
+      /**
+       * Returns the largest integer less than or equal to the specified number.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/floor/#mongodb-expression-exp.-floor
+       */
+      $floor: NumberExpression;
+    }
+
+    export interface Ln {
+      /**
+       * Calculates the natural log of a number.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/ln/#mongodb-expression-exp.-ln
+       */
+      $ln: NumberExpression;
+    }
+
+    export interface Log {
+      /**
+       * Calculates the log of a number in the specified base.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/log/#mongodb-expression-exp.-log
+       */
+      $log: [NumberExpression, NumberExpression];
+    }
+
+    export interface Log10 {
+      /**
+       * Calculates the log base 10 of a number.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/log10/#mongodb-expression-exp.-log10
+       */
+      $log10: NumberExpression;
+    }
+
+    export interface Mod {
+      /**
+       * Returns the remainder of the first number divided by the second. Accepts two argument expressions.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/mod/#mongodb-expression-exp.-mod
+       */
+      $mod: [NumberExpression, NumberExpression];
+    }
+    export interface Multiply {
+      /**
+       * Multiplies numbers to return the product. Accepts any number of argument expressions.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/multiply/#mongodb-expression-exp.-multiply
+       */
+      $multiply: NumberExpression[];
+    }
+
+    export interface Pow {
+      /**
+       * Raises a number to the specified exponent.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/pow/#mongodb-expression-exp.-pow
+       */
+      $pow: [NumberExpression, NumberExpression];
+    }
+
+    export interface Round {
+      /**
+       * Rounds a number to to a whole integer or to a specified decimal place.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/round/#mongodb-expression-exp.-round
+       */
+      $round: [NumberExpression, NumberExpression?];
+    }
+
+    export interface Sqrt {
+      /**
+       * Calculates the square root.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/sqrt/#mongodb-expression-exp.-sqrt
+       */
+      $sqrt: NumberExpression;
+    }
+
+    export interface Subtract {
+      /**
+       * Returns the result of subtracting the second value from the first. If the two values are numbers, return the difference. If the two values are dates, return the difference in milliseconds. If the two values are a date and a number in milliseconds, return the resulting date. Accepts two argument expressions. If the two values are a date and a number, specify the date argument first as it is not meaningful to subtract a date from a number.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/subtract/#mongodb-expression-exp.-subtract
+       */
+      $subtract: (NumberExpression | DateExpression)[];
+    }
+
+    export interface Trunc {
+      /**
+       * Truncates a number to a whole integer or to a specified decimal place.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/trunc/#mongodb-expression-exp.-trunc
+       */
+      $trunc: [NumberExpression, NumberExpression?];
+    }
+
+    export interface Sin {
+      /**
+       * Returns the sine of a value that is measured in radians.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/sin/#mongodb-expression-exp.-sin
+       */
+      $sin: NumberExpression;
+    }
+
+    export interface Cos {
+      /**
+       * Returns the cosine of a value that is measured in radians.
+       *
+       * @version 4.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/cos/#mongodb-expression-exp.-cos
+       */
+      $cos: NumberExpression;
+    }
+
+    export interface Tan {
+      /**
+       * Returns the tangent of a value that is measured in radians.
+       *
+       * @version 4.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/tan/#mongodb-expression-exp.-tan
+       */
+      $tan: NumberExpression;
+    }
+
+    export interface Asin {
+      /**
+       * Returns the inverse sin (arc sine) of a value in radians.
+       *
+       * @version 4.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/asin/#mongodb-expression-exp.-asin
+       */
+      $asin: NumberExpression;
+    }
+
+    export interface Acos {
+      /**
+       * Returns the inverse cosine (arc cosine) of a value in radians.
+       *
+       * @version 4.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/acos/#mongodb-expression-exp.-acos
+       */
+      $acos: NumberExpression;
+    }
+
+    export interface Atan {
+      /**
+       * Returns the inverse tangent (arc tangent) of a value in radians.
+       *
+       * @version 4.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/atan/#mongodb-expression-exp.-atan
+       */
+      $atan: NumberExpression;
+    }
+
+    export interface Atan2 {
+      /**
+       * Returns the inverse tangent (arc tangent) of y / x in radians, where y and x are the first and second values passed to the expression respectively.
+       *
+       * @version 4.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/atan2/#mongodb-expression-exp.-atan2
+       */
+      $atan2: NumberExpression;
+    }
+
+    export interface Asinh {
+      /**
+       * Returns the inverse hyperbolic sine (hyperbolic arc sine) of a value in radians.
+       *
+       * @version 4.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/asinh/#mongodb-expression-exp.-asinh
+       */
+      $asinh: NumberExpression;
+    }
+
+    export interface Acosh {
+      /**
+       * Returns the inverse hyperbolic cosine (hyperbolic arc cosine) of a value in radians.
+       *
+       * @version 4.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/acosh/#mongodb-expression-exp.-acosh
+       */
+      $acosh: NumberExpression;
+    }
+
+    export interface Atanh {
+
+      /**
+       * Returns the inverse hyperbolic tangent (hyperbolic arc tangent) of a value in radians.
+       *
+       * @version 4.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/atanh/#mongodb-expression-exp.-atanh
+       */
+      $atanh: NumberExpression;
+    }
+
+    export interface Sinh {
+      /**
+       * Returns the hyperbolic sine of a value that is measured in radians.
+       *
+       * @version 4.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/sinh/#mongodb-expression-exp.-sinh
+       */
+      $sinh: NumberExpression;
+    }
+
+    export interface Cosh {
+      /**
+       * Returns the hyperbolic cosine of a value that is measured in radians.
+       *
+       * @version 4.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/cosh/#mongodb-expression-exp.-cosh
+       */
+      $cosh: NumberExpression;
+    }
+
+    export interface Tanh {
+      /**
+       * Returns the hyperbolic tangent of a value that is measured in radians.
+       *
+       * @version 4.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/tanh/#mongodb-expression-exp.-tanh
+       */
+      $tanh: NumberExpression;
+    }
+
+    export interface DegreesToRadians {
+      /**
+       * Converts a value from degrees to radians.
+       *
+       * @version 4.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/degreesToRadians/#mongodb-expression-exp.-degreesToRadians
+       */
+      $degreesToRadians: NumberExpression;
+    }
+
+    export interface RadiansToDegrees {
+      /**
+       * Converts a value from radians to degrees.
+       *
+       * @version 4.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/radiansToDegrees/#mongodb-expression-exp.-radiansToDegrees
+       */
+      $radiansToDegrees: NumberExpression;
+    }
+
+    export interface Meta {
+      /**
+       * Access available per-document metadata related to the aggregation operation.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/meta/#mongodb-expression-exp.-meta
+       */
+      $meta: 'textScore' | 'indexKey';
+    }
+
+    export interface DateAdd {
+      /**
+       * Adds a number of time units to a date object.
+       *
+       * @version 5.0.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/dateAdd/#mongodb-expression-exp.-dateAdd
+       */
+      $dateAdd: {
+        /**
+         * The beginning date, in UTC, for the addition operation. The startDate can be any expression that resolves to a Date, a Timestamp, or an ObjectID.
+         */
+        startDate: DateExpression;
+        /**
+         * The unit used to measure the amount of time added to the startDate. The unit is an expression that resolves to one of the following strings:
+         * - year
+         * - quarter
+         * - week
+         * - month
+         * - day
+         * - hour
+         * - minute
+         * - second
+         * - millisecond
+         */
+        unit: StringExpression<DateUnit>;
+        /**
+         * The number of units added to the startDate. The amount is an expression that resolves to an integer or long. The amount can also resolve to an integral decimal or a double if that value can be converted to a long without loss of precision.
+         */
+        amount: NumberExpression;
+        /**
+         * The timezone to carry out the operation. <tzExpression> must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC.
+         */
+        timezone?: tzExpression;
+      };
+    }
+
+    export interface DateDiff {
+      /**
+       * Returns the difference between two dates.
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/dateDiff/#mongodb-expression-exp.-dateDiff
+       */
+      $dateDiff: {
+        /**
+         * The start of the time period. The startDate can be any expression that resolves to a Date, a Timestamp, or an ObjectID.
+         */
+        startDate: DateExpression;
+        /**
+         * The end of the time period. The endDate can be any expression that resolves to a Date, a Timestamp, or an ObjectID.
+         */
+        endDate: DateExpression;
+        /**
+         * The time measurement unit between the startDate and endDate. It is an expression that resolves to a string:
+         * - year
+         * - quarter
+         * - week
+         * - month
+         * - day
+         * - hour
+         * - minute
+         * - second
+         * - millisecond
+         */
+        unit: StringExpression<DateUnit>;
+        /**
+         * The timezone to carry out the operation. <tzExpression> must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC.
+         */
+        timezone?: tzExpression;
+        /**
+         * Used when the unit is equal to week. Defaults to Sunday. The startOfWeek parameter is an expression that resolves to a case insensitive string:
+         * - monday (or mon)
+         * - tuesday (or tue)
+         * - wednesday (or wed)
+         * - thursday (or thu)
+         * - friday (or fri)
+         * - saturday (or sat)
+         * - sunday (or sun)
+         */
+        startOfWeek?: StringExpression<StartOfWeek>;
+      }
+    }
+
+    // TODO: Can be done better
+    export interface DateFromParts {
+      /**
+       * Constructs a BSON Date object given the date's constituent parts.
+       *
+       * @version 3.6
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/dateFromParts/#mongodb-expression-exp.-dateFromParts
+       */
+      $dateFromParts: {
+        /**
+         * ISO Week Date Year. Can be any expression that evaluates to a number.
+         *
+         * Value range: 1-9999
+         *
+         * If the number specified is outside this range, $dateFromParts errors. Starting in MongoDB 4.4, the lower bound for this value is 1. In previous versions of MongoDB, the lower bound was 0.
+         */
+        isoWeekYear?: NumberExpression;
+        /**
+         * Week of year. Can be any expression that evaluates to a number.
+         *
+         * Defaults to 1.
+         *
+         * Value range: 1-53
+         *
+         * Starting in MongoDB 4.0, if the number specified is outside this range, $dateFromParts incorporates the difference in the date calculation. See Value Range for examples.
+         */
+        isoWeek?: NumberExpression;
+        /**
+         * Day of week (Monday 1 - Sunday 7). Can be any expression that evaluates to a number.
+         *
+         * Defaults to 1.
+         *
+         * Value range: 1-7
+         *
+         * Starting in MongoDB 4.0, if the number specified is outside this range, $dateFromParts incorporates the difference in the date calculation. See Value Range for examples.
+         */
+        isoDayOfWeek?: NumberExpression;
+        /**
+         * Calendar year. Can be any expression that evaluates to a number.
+         *
+         * Value range: 1-9999
+         *
+         * If the number specified is outside this range, $dateFromParts errors. Starting in MongoDB 4.4, the lower bound for this value is 1. In previous versions of MongoDB, the lower bound was 0.
+         */
+        year?: NumberExpression;
+        /**
+         * Month. Can be any expression that evaluates to a number.
+         *
+         * Defaults to 1.
+         *
+         * Value range: 1-12
+         *
+         * Starting in MongoDB 4.0, if the number specified is outside this range, $dateFromParts incorporates the difference in the date calculation. See Value Range for examples.
+         */
+        month?: NumberExpression;
+        /**
+         * Day of month. Can be any expression that evaluates to a number.
+         *
+         * Defaults to 1.
+         *
+         * Value range: 1-31
+         *
+         * Starting in MongoDB 4.0, if the number specified is outside this range, $dateFromParts incorporates the difference in the date calculation. See Value Range for examples.
+         */
+        day?: NumberExpression;
+        /**
+         * Hour. Can be any expression that evaluates to a number.
+         *
+         * Defaults to 0.
+         *
+         * Value range: 0-23
+         *
+         * Starting in MongoDB 4.0, if the number specified is outside this range, $dateFromParts incorporates the difference in the date calculation. See Value Range for examples.
+         */
+        hour?: NumberExpression;
+        /**
+         * Minute. Can be any expression that evaluates to a number.
+         *
+         * Defaults to 0.
+         *
+         * Value range: 0-59 Starting in MongoDB 4.0, if the number specified is outside this range, $dateFromParts incorporates the difference in the date calculation. See Value Range for examples.
+         */
+        minute?: NumberExpression;
+        /**
+         * Second. Can be any expression that evaluates to a number.
+         *
+         * Defaults to 0.
+         *
+         * Value range: 0-59
+         *
+         * Starting in MongoDB 4.0, if the number specified is outside this range, $dateFromParts incorporates the difference in the date calculation. See Value Range for examples.
+         */
+        second?: NumberExpression;
+        /**
+         * Millisecond. Can be any expression that evaluates to a number.
+         *
+         * Defaults to 0.
+         *
+         * Value range: 0-999
+         *
+         * Starting in MongoDB 4.0, if the number specified is outside this range, $dateFromParts incorporates the difference in the date calculation. See Value Range for examples.
+         */
+        millisecond?: NumberExpression;
+        /**
+         * The timezone to carry out the operation. <tzExpression> must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC.
+         */
+        timezone?: tzExpression;
+      };
+    }
+
+    export interface DateFromString {
+      /**
+       * Converts a date/time string to a date object.
+       *
+       * @version 3.6
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/dateFromString/#mongodb-expression-exp.-dateFromString
+       */
+      $dateFromString: {
+        dateString: StringExpression<string>;
+        /**
+         * The date format specification of the dateString. The format can be any expression that evaluates to a string literal, containing 0 or more format specifiers. For a list of specifiers available, see Format Specifiers.
+         *
+         * If unspecified, $dateFromString uses "%Y-%m-%dT%H:%M:%S.%LZ" as the default format.
+         * @version 4.0
+         */
+        format?: FormatString;
+        /**
+         * The time zone to use to format the date.
+         *
+         * Note: If the dateString argument is formatted like '2017-02-08T12:10:40.787Z', in which the 'Z' at the end indicates Zulu time (UTC time zone), you cannot specify the timezone argument.
+         */
+        timezone?: tzExpression;
+        /**
+         * Optional. If $dateFromString encounters an error while parsing the given dateString, it outputs the result value of the provided onError expression. This result value can be of any type.
+         *
+         * If you do not specify onError, $dateFromString throws an error if it cannot parse dateString.
+         */
+        onError?: Expression;
+        /**
+         * Optional. If the dateString provided to $dateFromString is null or missing, it outputs the result value of the provided onNull expression. This result value can be of any type.
+         *
+         * If you do not specify onNull and dateString is null or missing, then $dateFromString outputs null.
+         */
+        onNull?: Expression;
+      };
+    }
+
+    export interface DateSubtract {
+      /**
+       * Subtracts a number of time units from a date object.
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/dateSubtract/#mongodb-expression-exp.-dateSubtract
+       */
+      $dateSubtract: {
+        /**
+         * The beginning date, in UTC, for the subtraction operation. The startDate can be any expression that resolves to a Date, a Timestamp, or an ObjectID.
+         */
+        startDate: DateExpression;
+        /**
+         * The unit of time, specified as an expression that must resolve to one of these strings:
+         * - year
+         * - quarter
+         * - week
+         * - month
+         * - day
+         * - hour
+         * - minute
+         * - second
+         * - millisecond
+         *
+         * Together, binSize and unit specify the time period used in the $dateTrunc calculation.
+         */
+        unit: StringExpression<DateUnit>;
+        /**
+         * The number of units subtracted from the startDate. The amount is an expression that resolves to an integer or long. The amount can also resolve to an integral decimal and or a double if that value can be converted to a long without loss of precision.
+         */
+        amount: NumberExpression;
+        /**
+         * The timezone to carry out the operation. <tzExpression> must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC.
+         */
+        timezone?: tzExpression;
+      };
+    }
+
+    export interface DateToParts {
+      /**
+       * Returns a document containing the constituent parts of a date.
+       *
+       * @version 3.6
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/dateToParts/#mongodb-expression-exp.-dateToParts
+       */
+      $dateToParts: {
+        /**
+         * The input date for which to return parts. <dateExpression> can be any expression that resolves to a Date, a Timestamp, or an ObjectID. For more information on expressions, see Expressions.
+         */
+        date: DateExpression;
+        /**
+         * The timezone of the operation result. <tzExpression> must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC.
+         *
+         * @version 3.6
+         */
+        timezone?: tzExpression;
+        /**
+         * If set to true, modifies the output document to use ISO week date fields. Defaults to false.
+         */
+        iso8601?: boolean;
+      };
+    }
+
+    export interface DateToString {
+      /**
+       * Returns the date as a formatted string.
+       *
+       * @version 3.6
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/dateToString/#mongodb-expression-exp.-dateToString
+       */
+      $dateToString: {
+        /**
+         * The date to convert to string. <dateExpression> must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID.
+         */
+        date: DateExpression;
+        /**
+         * The date format specification. <formatString> can be any string literal, containing 0 or more format specifiers. For a list of specifiers available, see Format Specifiers.
+         *
+         * If unspecified, $dateToString uses "%Y-%m-%dT%H:%M:%S.%LZ" as the default format.
+         *
+         * Changed in version 4.0: The format field is optional if featureCompatibilityVersion (fCV) is set to "4.0" or greater. For more information on fCV, see setFeatureCompatibilityVersion.
+         */
+        format?: FormatString;
+        /**
+         * The timezone of the operation result. <tzExpression> must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC.
+         *
+         * @version 3.6
+         */
+        timezone?: tzExpression;
+        /**
+         * The value to return if the date is null or missing. The arguments can be any valid expression.
+         *
+         * If unspecified, $dateToString returns null if the date is null or missing.
+         *
+         * Changed in version 4.0: Requires featureCompatibilityVersion (fCV) set to "4.0" or greater. For more information on fCV, see setFeatureCompatibilityVersion.
+         */
+        onNull?: Expression;
+      };
+    }
+
+    export interface DateTrunc {
+      /**
+       * Truncates a date.
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/dateTrunc/#mongodb-expression-exp.-dateTrunc
+       */
+      $dateTrunc: {
+        /**
+         * The date to truncate, specified in UTC. The date can be any expression that resolves to a Date, a Timestamp, or an ObjectID.
+         */
+        date: DateExpression;
+        /**
+         * The unit of time, specified as an expression that must resolve to one of these strings:
+         * - year
+         * - quarter
+         * - week
+         * - month
+         * - day
+         * - hour
+         * - minute
+         * - second
+         * - millisecond
+         *
+         * Together, binSize and unit specify the time period used in the $dateTrunc calculation.
+         */
+        unit: StringExpression<DateUnit>;
+        /**
+         * The numeric time value, specified as an expression that must resolve to a positive non-zero number. Defaults to 1.
+         *
+         * Together, binSize and unit specify the time period used in the $dateTrunc calculation.
+         */
+        binSize?: NumberExpression;
+        /**
+         * The timezone of the operation result. <tzExpression> must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC.
+         */
+        timezone?: tzExpression;
+        /**
+         * Used when the unit is equal to week. Defaults to Sunday. The startOfWeek parameter is an expression that resolves to a case insensitive string:
+         * - monday (or mon)
+         * - tuesday (or tue)
+         * - wednesday (or wed)
+         * - thursday (or thu)
+         * - friday (or fri)
+         * - saturday (or sat)
+         * - sunday (or sun)
+         */
+        startOfWeek?: StringExpression<StartOfWeek>;
+      }
+    }
+
+    export interface DayOfMonth {
+      /**
+       * Returns the day of the month for a date as a number between 1 and 31.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/dayOfMonth/#mongodb-expression-exp.-dayOfMonth
+       */
+      $dayOfMonth: DateExpression | {
+        /**
+         * The date to which the operator is applied. <dateExpression> must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID.
+         */
+        date: DateExpression;
+        /**
+         * The timezone of the operation result. <tzExpression> must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC.
+         */
+        timezone?: tzExpression;
+      };
+    }
+
+    export interface DayOfWeek {
+      /**
+       * Returns the day of the week for a date as a number between 1 (Sunday) and 7 (Saturday).
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/dayOfWeek/#mongodb-expression-exp.-dayOfWeek
+       */
+      $dayOfWeek: DateExpression | {
+        /**
+         * The date to which the operator is applied. <dateExpression> must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID.
+         */
+        date: DateExpression;
+        /**
+         * The timezone of the operation result. <tzExpression> must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC.
+         */
+        timezone?: tzExpression;
+      };
+    }
+
+    export interface DayOfYear {
+      /**
+       * Returns the day of the year for a date as a number between 1 and 366 (leap year).
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/dayOfYear/#mongodb-expression-exp.-dayOfYear
+       */
+      $dayOfYear: DateExpression | {
+        /**
+         * The date to which the operator is applied. <dateExpression> must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID.
+         */
+        date: DateExpression;
+        /**
+         * The timezone of the operation result. <tzExpression> must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC.
+         */
+        timezone?: tzExpression;
+      };
+    }
+
+    export interface Hour {
+      /**
+       * Returns the hour for a date as a number between 0 and 23.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/hour/#mongodb-expression-exp.-hour
+       */
+      $hour: DateExpression | {
+        /**
+         * The date to which the operator is applied. <dateExpression> must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID.
+         */
+        date: DateExpression;
+        /**
+         * The timezone of the operation result. <tzExpression> must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC.
+         */
+        timezone?: tzExpression;
+      };
+    }
+
+    export interface IsoDayOfWeek {
+      /**
+       * Returns the weekday number in ISO 8601 format, ranging from 1 (for Monday) to 7 (for Sunday).
+       *
+       * @version 3.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/isoDayOfWeek/#mongodb-expression-exp.-isoDayOfWeek
+       */
+      $isoDayOfWeek: DateExpression | {
+        /**
+         * The date to which the operator is applied. <dateExpression> must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID.
+         */
+        date: DateExpression;
+        /**
+         * The timezone of the operation result. <tzExpression> must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC.
+         */
+        timezone?: tzExpression;
+      };
+    }
+
+    export interface IsoWeek {
+      /**
+       * Returns the week number in ISO 8601 format, ranging from 1 to 53. Week numbers start at 1 with the week (Monday through Sunday) that contains the year's first Thursday.
+       *
+       * @version 3.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/isoWeek/#mongodb-expression-exp.-isoWeek
+       */
+      $isoWeek: DateExpression | {
+        /**
+         * The date to which the operator is applied. <dateExpression> must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID.
+         */
+        date: DateExpression;
+        /**
+         * The timezone of the operation result. <tzExpression> must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC.
+         */
+        timezone?: tzExpression;
+      };
+    }
+
+    export interface IsoWeekYear {
+      /**
+       * Returns the year number in ISO 8601 format. The year starts with the Monday of week 1 (ISO 8601) and ends with the Sunday of the last week (ISO 8601).
+       *
+       * @version 3.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/isoWeekYear/#mongodb-expression-exp.-isoWeekYear
+       */
+      $isoWeekYear: DateExpression | {
+        /**
+         * The date to which the operator is applied. <dateExpression> must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID.
+         */
+        date: DateExpression;
+        /**
+         * The timezone of the operation result. <tzExpression> must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC.
+         */
+        timezone?: tzExpression;
+      };
+    }
+
+    export interface Millisecond {
+      /**
+       * Returns the milliseconds of a date as a number between 0 and 999.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/millisecond/#mongodb-expression-exp.-millisecond
+       */
+      $millisecond: DateExpression | {
+        /**
+         * The date to which the operator is applied. <dateExpression> must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID.
+         */
+        date: DateExpression;
+        /**
+         * The timezone of the operation result. <tzExpression> must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC.
+         */
+        timezone?: tzExpression;
+      };
+    }
+
+    export interface Minute {
+      /**
+       * Returns the minute for a date as a number between 0 and 59.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/minute/#mongodb-expression-exp.-minute
+       */
+      $minute: DateExpression | {
+        /**
+         * The date to which the operator is applied. <dateExpression> must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID.
+         */
+        date: DateExpression;
+        /**
+         * The timezone of the operation result. <tzExpression> must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC.
+         */
+        timezone?: tzExpression;
+      };
+    }
+
+    export interface Month {
+      /**
+       * Returns the month for a date as a number between 1 (January) and 12 (December).
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/month/#mongodb-expression-exp.-month
+       */
+      $month: DateExpression | {
+        /**
+         * The date to which the operator is applied. <dateExpression> must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID.
+         */
+        date: DateExpression;
+        /**
+         * The timezone of the operation result. <tzExpression> must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC.
+         */
+        timezone?: tzExpression;
+      };
+    }
+
+    export interface Second {
+      /**
+       * Returns the seconds for a date as a number between 0 and 60 (leap seconds).
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/second/#mongodb-expression-exp.-second
+       */
+      $second: DateExpression | {
+        /**
+         * The date to which the operator is applied. <dateExpression> must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID.
+         */
+        date: DateExpression;
+        /**
+         * The timezone of the operation result. <tzExpression> must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC.
+         */
+        timezone?: tzExpression;
+      };
+    }
+
+    export interface ToDate {
+      /**
+       * Converts value to a Date.
+       *
+       * @version 4.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/toDate/#mongodb-expression-exp.-toDate
+       */
+      $toDate: Expression;
+    }
+
+    export interface Week {
+      /**
+       * Returns the week number for a date as a number between 0 (the partial week that precedes the first Sunday of the year) and 53 (leap year).
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/week/#mongodb-expression-exp.-week
+       */
+      $week: DateExpression | {
+        /**
+         * The date to which the operator is applied. <dateExpression> must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID.
+         */
+        date: DateExpression;
+        /**
+         * The timezone of the operation result. <tzExpression> must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC.
+         */
+        timezone?: tzExpression;
+      };
+    }
+
+    export interface Year {
+      /**
+       * Returns the year for a date as a number (e.g. 2014).
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/year/#mongodb-expression-exp.-year
+       */
+      $year: DateExpression | {
+        /**
+         * The date to which the operator is applied. <dateExpression> must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID.
+         */
+        date: DateExpression;
+        /**
+         * The timezone of the operation result. <tzExpression> must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC.
+         */
+        timezone?: tzExpression;
+      };
+    }
+
+    export interface And {
+      /**
+       * Returns true only when all its expressions evaluate to true. Accepts any number of argument expressions.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/and/#mongodb-expression-exp.-and
+       */
+      $and: (Expression | Record<string, Expression>)[];
+    }
+
+    export interface Not {
+      /**
+       * Returns the boolean value that is the opposite of its argument expression. Accepts a single argument expression.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/not/#mongodb-expression-exp.-not
+       */
+      $not: [Expression];
+    }
+
+    export interface Or {
+      /**
+       * Returns true when any of its expressions evaluates to true. Accepts any number of argument expressions.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/or/#mongodb-expression-exp.-or
+       */
+      $or: (Expression | Record<string, Expression>)[];
+    }
+
+    export interface Cmp {
+      /**
+       * Returns 0 if the two values are equivalent, 1 if the first value is greater than the second, and -1 if the first value is less than the second.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/cmp/#mongodb-expression-exp.-cmp
+       */
+      $cmp: [Record<string, AnyExpression> | Expression, Record<string, AnyExpression> | Expression];
+    }
+
+    export interface Eq {
+      /**
+       * Returns true if the values are equivalent.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/eq/#mongodb-expression-exp.-eq
+       */
+      $eq: AnyExpression | [AnyExpression, AnyExpression];
+    }
+
+    export interface Gt {
+      /**
+       * Returns true if the first value is greater than the second.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/gt/#mongodb-expression-exp.-gt
+       */
+      $gt: NumberExpression | [NumberExpression, NumberExpression];
+    }
+
+    export interface Gte {
+      /**
+       * Returns true if the first value is greater than or equal to the second.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/gte/#mongodb-expression-exp.-gte
+       */
+      $gte: NumberExpression | [NumberExpression, NumberExpression];
+    }
+
+    export interface Lt {
+      /**
+       * Returns true if the first value is less than the second.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/lt/#mongodb-expression-exp.-lt
+       */
+      $lt: NumberExpression | [NumberExpression, NumberExpression];
+    }
+
+    export interface Lte {
+      /**
+       * Returns true if the first value is less than or equal to the second.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/lte/#mongodb-expression-exp.-lte
+       */
+      $lte: NumberExpression | [NumberExpression, NumberExpression];
+    }
+
+    export interface Ne {
+      /**
+       * Returns true if the values are not equivalent.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/ne/#mongodb-expression-exp.-ne
+       */
+      $ne: Expression | [Expression, Expression | NullExpression] | null;
+    }
+
+    export interface Cond {
+      /**
+       * A ternary operator that evaluates one expression, and depending on the result, returns the value of one of the other two expressions. Accepts either three expressions in an ordered list or three named parameters.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/cond/#mongodb-expression-exp.-cond
+       */
+      $cond: { if: Expression, then: AnyExpression, else: AnyExpression } | [BooleanExpression, AnyExpression, AnyExpression];
+    }
+
+    export interface IfNull {
+      /**
+       * Returns either the non-null result of the first expression or the result of the second expression if the first expression results in a null result. Null result encompasses instances of undefined values or missing fields. Accepts two expressions as arguments. The result of the second expression can be null.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/ifNull/#mongodb-expression-exp.-ifNull
+       */
+      $ifNull: Expression[];
+    }
+
+    export interface Switch {
+      /**
+       * Evaluates a series of case expressions. When it finds an expression which evaluates to true, $switch executes a specified expression and breaks out of the control flow.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/switch/#mongodb-expression-exp.-switch
+       */
+      $switch: {
+        /**
+         * An array of control branch documents. Each branch is a document with the following fields:
+         * - $case
+         * - $then
+         */
+        branches: { case: Expression, then: Expression }[];
+        /**
+         * The path to take if no branch case expression evaluates to true.
+         *
+         * Although optional, if default is unspecified and no branch case evaluates to true, $switch returns an error.
+         */
+        default: Expression;
+      };
+    }
+
+    export interface ArrayElemAt {
+      /**
+       * Returns the element at the specified array index.
+       *
+       * @version 3.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/arrayElemAt/#mongodb-expression-exp.-arrayElemAt
+       */
+      $arrayElemAt: [ArrayExpression, NumberExpression];
+    }
+
+    export interface ArrayToObject {
+      /**
+       * Converts an array of key value pairs to a document.
+       *
+       * @version 3.4.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/arrayToObject/#mongodb-expression-exp.-arrayToObject
+       */
+      $arrayToObject: ArrayExpression;
+    }
+
+    export interface ConcatArrays {
+      /**
+       * Concatenates arrays to return the concatenated array.
+       *
+       * @version 3.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/concatArrays/#mongodb-expression-exp.-concatArrays
+       */
+      $concatArrays: Expression[];
+    }
+
+    export interface Filter {
+      /**
+       * Selects a subset of the array to return an array with only the elements that match the filter condition.
+       *
+       * @version 3.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/filter/#mongodb-expression-exp.-filter
+       */
+      $filter: {
+        /**
+         * An expression that resolves to an array.
+         */
+        input: ArrayExpression;
+        /**
+         * A name for the variable that represents each individual element of the input array. If no name is specified, the variable name defaults to this.
+         */
+        as?: string;
+        /**
+         * An expression that resolves to a boolean value used to determine if an element should be included in the output array. The expression references each element of the input array individually with the variable name specified in as.
+         */
+        cond: BooleanExpression;
+        /**
+         * A number expression that restricts the number of matching array elements that $filter returns. You cannot specify a limit less than 1. The matching array elements are returned in the order they appear in the input array.
+         *
+         * If the specified limit is greater than the number of matching array elements, $filter returns all matching array elements.
+         * If the limit is null, $filter returns all matching array elements.
+         *
+         * @version 5.2
+         * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/filter/#using-the-limit-field
+         */
+        limit?: NumberExpression;
+      }
+    }
+
+    export interface First {
+      /**
+       * Returns the first array element. Distinct from $first accumulator.
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/first/#mongodb-expression-exp.-first
+       */
+      $first: Expression;
+    }
+
+    export interface FirstN {
+      /**
+       * $firstN can be used as an aggregation accumulator or array operator.
+       * As an aggregation accumulator, it returns an aggregation of the first n elements within a group.
+       * As an array operator, it returns the specified number of elements from the beginning of an array.
+       *
+       * @version 5.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/firstN/#mongodb-expression-exp.-first
+       */
+      $firstN: {
+        input: Expression
+        n: Expression,
+      };
+    }
+
+    export interface In {
+      /**
+       * Returns a boolean indicating whether a specified value is in an array.
+       *
+       * @version 3.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/in/#mongodb-expression-exp.-in
+       */
+      $in: [Expression, ArrayExpression];
+    }
+
+    export interface IndexOfArray {
+      /**
+       * Searches an array for an occurrence of a specified value and returns the array index of the first occurrence. If the substring is not found, returns -1.
+       *
+       * @version 3.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/indexOfArray/#mongodb-expression-exp.-indexOfArray
+       */
+      $indexOfArray: [ArrayExpression, Expression] | [ArrayExpression, Expression, NumberExpression] | [ArrayExpression, Expression, NumberExpression, NumberExpression];
+    }
+
+    export interface IsArray {
+      /**
+       * Determines if the operand is an array. Returns a boolean.
+       *
+       * @version 3.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/isArray/#mongodb-expression-exp.-isArray
+       */
+      $isArray: [Expression];
+    }
+
+    export interface Last {
+      /**
+       * Returns the last array element. Distinct from $last accumulator.
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/last/#mongodb-expression-exp.-last
+       */
+      $last: Expression;
+    }
+
+    export interface LastN {
+      /**
+       * $lastN can be used as an aggregation accumulator or array operator.
+       * As an aggregation accumulator, it an aggregation of the last n elements within a group.
+       * As an array operator, it returns the specified number of elements from the end of an array.
+       *
+       * @version 5.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/lastN/#mongodb-group-grp.-lastN
+       */
+      $lastN: {
+        input: Expression
+        n: Expression,
+      };
+    }
+
+    export interface LinearFill {
+      /**
+       * Fills null and missing fields in a window using linear interpolation based on surrounding field values.
+       *
+       * @version 5.3
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/linearFill
+       */
+      $linearFill: Expression
+    }
+
+    export interface Locf {
+      /**
+       * Last observation carried forward. Sets values for null and missing fields in a window to the last non-null value for the field.
+       *
+       * @version 5.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/locf
+       */
+      $locf: Expression
+    }
+
+    export interface Map {
+      /**
+       * Applies a subexpression to each element of an array and returns the array of resulting values in order. Accepts named parameters.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/map/#mongodb-expression-exp.-map
+       */
+      $map: {
+        /**
+         * An expression that resolves to an array.
+         */
+        input: ArrayExpression;
+        /**
+         * A name for the variable that represents each individual element of the input array. If no name is specified, the variable name defaults to this.
+         */
+        as?: string;
+        /**
+         * An expression that is applied to each element of the input array. The expression references each element individually with the variable name specified in as.
+         */
+        in: Expression;
+      };
+    }
+
+    export interface ObjectToArray {
+      /**
+       * Converts a document to an array of documents representing key-value pairs.
+       *
+       * @version 3.4.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/objectToArray/#mongodb-expression-exp.-objectToArray
+       */
+      $objectToArray: ObjectExpression;
+    }
+
+    export interface Range {
+      /**
+       * Outputs an array containing a sequence of integers according to user-defined inputs.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/range/#mongodb-expression-exp.-range
+       */
+      $range: [NumberExpression, NumberExpression] | [NumberExpression, NumberExpression, NumberExpression];
+    }
+
+    export interface Reduce {
+      /**
+       * Applies an expression to each element in an array and combines them into a single value.
+       *
+       * @version 3.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/reduce/#mongodb-expression-exp.-reduce
+       */
+      $reduce: {
+        /**
+         * Can be any valid expression that resolves to an array. For more information on expressions, see Expressions.
+         *
+         * If the argument resolves to a value of null or refers to a missing field, $reduce returns null.
+         *
+         * If the argument does not resolve to an array or null nor refers to a missing field, $reduce returns an error.
+         */
+        input: ArrayExpression;
+        /**
+         * The initial cumulative value set before in is applied to the first element of the input array.
+         */
+        initialValue: Expression;
+        /**
+         * A valid expression that $reduce applies to each element in the input array in left-to-right order. Wrap the input value with $reverseArray to yield the equivalent of applying the combining expression from right-to-left.
+         *
+         * During evaluation of the in expression, two variables will be available:
+         * - `value` is the variable that represents the cumulative value of the expression.
+         * - `this` is the variable that refers to the element being processed.
+         */
+        in: Expression;
+      };
+    }
+
+    export interface ReverseArray {
+      /**
+       * Returns an array with the elements in reverse order.
+       *
+       * @version 3.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/reverseArray/#mongodb-expression-exp.-reverseArray
+       */
+      $reverseArray: ArrayExpression;
+    }
+
+    export interface Size {
+      /**
+       * Returns the number of elements in the array. Accepts a single expression as argument.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/size/#mongodb-expression-exp.-size
+       */
+      $size: ArrayExpression;
+    }
+
+    export interface Slice {
+      /**
+       * Returns a subset of an array.
+       *
+       * @version 3.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/slice/#mongodb-expression-exp.-slice
+       */
+      $slice: [ArrayExpression, NumberExpression] | [ArrayExpression, NumberExpression, NumberExpression];
+    }
+
+    export interface Zip {
+      /**
+       * Merge two arrays together.
+       *
+       * @version 3.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/zip/#mongodb-expression-exp.-zip
+       */
+      $zip: {
+        /**
+         * An array of expressions that resolve to arrays. The elements of these input arrays combine to form the arrays of the output array.
+         *
+         * If any of the inputs arrays resolves to a value of null or refers to a missing field, $zip returns null.
+         *
+         * If any of the inputs arrays does not resolve to an array or null nor refers to a missing field, $zip returns an error.
+         */
+        inputs: ArrayExpression[];
+        /**
+         * A boolean which specifies whether the length of the longest array determines the number of arrays in the output array.
+         *
+         * The default value is false: the shortest array length determines the number of arrays in the output array.
+         */
+        useLongestLength?: boolean;
+        /**
+         * An array of default element values to use if the input arrays have different lengths. You must specify useLongestLength: true along with this field, or else $zip will return an error.
+         *
+         * If useLongestLength: true but defaults is empty or not specified, $zip uses null as the default value.
+         *
+         * If specifying a non-empty defaults, you must specify a default for each input array or else $zip will return an error.
+         */
+        defaults?: ArrayExpression;
+      };
+    }
+
+    export interface Concat {
+      /**
+       * Concatenates any number of strings.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/concat/#mongodb-expression-exp.-concat
+       */
+      $concat: StringExpression[];
+    }
+
+    export interface IndexOfBytes {
+      /**
+       * Searches a string for an occurrence of a substring and returns the UTF-8 byte index of the first occurrence. If the substring is not found, returns -1.
+       *
+       * @version 3.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/indexOfBytes/#mongodb-expression-exp.-indexOfBytes
+       */
+      $indexOfBytes: [StringExpression, StringExpression] | [StringExpression, StringExpression, NumberExpression] | [StringExpression, StringExpression, NumberExpression, NumberExpression];
+    }
+
+    export interface IndexOfCP {
+      /**
+       * Searches a string for an occurrence of a substring and returns the UTF-8 code point index of the first occurrence. If the substring is not found, returns -1
+       *
+       * @version 3.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/indexOfCP/#mongodb-expression-exp.-indexOfCP
+       */
+      $indexOfCP: [StringExpression, StringExpression] | [StringExpression, StringExpression, NumberExpression] | [StringExpression, StringExpression, NumberExpression, NumberExpression];
+    }
+
+    export interface Ltrim {
+      /**
+       * Removes whitespace or the specified characters from the beginning of a string.
+       *
+       * @version 4.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/ltrim/#mongodb-expression-exp.-ltrim
+       */
+      $ltrim: {
+        /**
+         * The string to trim. The argument can be any valid expression that resolves to a string. For more information on expressions, see Expressions.
+         */
+        input: StringExpression;
+        /**
+         * The character(s) to trim from the beginning of the input.
+         *
+         * The argument can be any valid expression that resolves to a string. The $ltrim operator breaks down the string into individual UTF code point to trim from input.
+         *
+         * If unspecified, $ltrim removes whitespace characters, including the null character. For the list of whitespace characters, see Whitespace Characters.
+         */
+        chars?: StringExpression;
+      };
+    }
+
+    export interface RegexFind {
+      /**
+       * Applies a regular expression (regex) to a string and returns information on the first matched substring.
+       *
+       * @version 4.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/regexFind/#mongodb-expression-exp.-regexFind
+       */
+      $regexFind: {
+        /**
+         * The string on which you wish to apply the regex pattern. Can be a string or any valid expression that resolves to a string.
+         */
+        input: Expression; // TODO: Resolving to string, which ones?
+        /**
+         * The regex pattern to apply. Can be any valid expression that resolves to either a string or regex pattern /<pattern>/. When using the regex /<pattern>/, you can also specify the regex options i and m (but not the s or x options):
+         * - "pattern"
+         * - /pattern/
+         * - /pattern/options
+         *
+         * Alternatively, you can also specify the regex options with the options field. To specify the s or x options, you must use the options field.
+         *
+         * You cannot specify options in both the regex and the options field.
+         */
+        regex: RegExp | string;
+        /**
+         * The following <options> are available for use with regular expression.
+         *
+         * Note: You cannot specify options in both the regex and the options field.
+         *
+         * Option   Description
+         *
+         * `i`      Case insensitivity to match both upper and lower cases. You can specify the option in the options field or as part of the regex field.
+         *
+         * `m`      For patterns that include anchors (i.e. ^ for the start, $ for the end), match at the beginning or end of each line for strings with multiline values. Without this option, these anchors match at beginning or end of the string.
+         *          If the pattern contains no anchors or if the string value has no newline characters (e.g. \n), the m option has no effect.
+         *
+         * `x`      "Extended" capability to ignore all white space characters in the pattern unless escaped or included in a character class.
+         *          Additionally, it ignores characters in-between and including an un-escaped hash/pound (#) character and the next new line, so that you may include comments in complicated patterns. This only applies to data characters; white space characters may never appear within special character sequences in a pattern.
+         *          The x option does not affect the handling of the VT character (i.e. code 11).
+         *          You can specify the option only in the options field.
+         *
+         * `s`      Allows the dot character (i.e. .) to match all characters including newline characters.
+         *          You can specify the option only in the options field.
+         */
+        options?: RegexOptions;
+      };
+    }
+
+    export interface RegexFindAll {
+      /**
+       * Applies a regular expression (regex) to a string and returns information on the all matched substrings.
+       *
+       * @version 4.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/regexFindAll/#mongodb-expression-exp.-regexFindAll
+       */
+      $regexFindAll: {
+        /**
+         * The string on which you wish to apply the regex pattern. Can be a string or any valid expression that resolves to a string.
+         */
+        input: Expression; // TODO: Resolving to string, which ones?
+        /**
+         * The regex pattern to apply. Can be any valid expression that resolves to either a string or regex pattern /<pattern>/. When using the regex /<pattern>/, you can also specify the regex options i and m (but not the s or x options):
+         * - "pattern"
+         * - /pattern/
+         * - /pattern/options
+         *
+         * Alternatively, you can also specify the regex options with the options field. To specify the s or x options, you must use the options field.
+         *
+         * You cannot specify options in both the regex and the options field.
+         */
+        regex: RegExp | string;
+        /**
+         * The following <options> are available for use with regular expression.
+         *
+         * Note: You cannot specify options in both the regex and the options field.
+         *
+         * Option   Description
+         *
+         * `i`      Case insensitivity to match both upper and lower cases. You can specify the option in the options field or as part of the regex field.
+         *
+         * `m`      For patterns that include anchors (i.e. ^ for the start, $ for the end), match at the beginning or end of each line for strings with multiline values. Without this option, these anchors match at beginning or end of the string.
+         *          If the pattern contains no anchors or if the string value has no newline characters (e.g. \n), the m option has no effect.
+         *
+         * `x`      "Extended" capability to ignore all white space characters in the pattern unless escaped or included in a character class.
+         *          Additionally, it ignores characters in-between and including an un-escaped hash/pound (#) character and the next new line, so that you may include comments in complicated patterns. This only applies to data characters; white space characters may never appear within special character sequences in a pattern.
+         *          The x option does not affect the handling of the VT character (i.e. code 11).
+         *          You can specify the option only in the options field.
+         *
+         * `s`      Allows the dot character (i.e. .) to match all characters including newline characters.
+         *          You can specify the option only in the options field.
+         */
+        options?: RegexOptions;
+      };
+    }
+
+    export interface RegexMatch {
+      /**
+       * Applies a regular expression (regex) to a string and returns a boolean that indicates if a match is found or not.
+       *
+       * @version 4.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/regexMatch/#mongodb-expression-exp.-regexMatch
+       */
+      $regexMatch: {
+        /**
+         * The string on which you wish to apply the regex pattern. Can be a string or any valid expression that resolves to a string.
+         */
+        input: Expression; // TODO: Resolving to string, which ones?
+        /**
+         * The regex pattern to apply. Can be any valid expression that resolves to either a string or regex pattern /<pattern>/. When using the regex /<pattern>/, you can also specify the regex options i and m (but not the s or x options):
+         * - "pattern"
+         * - /pattern/
+         * - /pattern/options
+         *
+         * Alternatively, you can also specify the regex options with the options field. To specify the s or x options, you must use the options field.
+         *
+         * You cannot specify options in both the regex and the options field.
+         */
+        regex: RegExp | string;
+        /**
+         * The following <options> are available for use with regular expression.
+         *
+         * Note: You cannot specify options in both the regex and the options field.
+         *
+         * Option   Description
+         *
+         * `i`      Case insensitivity to match both upper and lower cases. You can specify the option in the options field or as part of the regex field.
+         *
+         * `m`      For patterns that include anchors (i.e. ^ for the start, $ for the end), match at the beginning or end of each line for strings with multiline values. Without this option, these anchors match at beginning or end of the string.
+         *          If the pattern contains no anchors or if the string value has no newline characters (e.g. \n), the m option has no effect.
+         *
+         * `x`      "Extended" capability to ignore all white space characters in the pattern unless escaped or included in a character class.
+         *          Additionally, it ignores characters in-between and including an un-escaped hash/pound (#) character and the next new line, so that you may include comments in complicated patterns. This only applies to data characters; white space characters may never appear within special character sequences in a pattern.
+         *          The x option does not affect the handling of the VT character (i.e. code 11).
+         *          You can specify the option only in the options field.
+         *
+         * `s`      Allows the dot character (i.e. .) to match all characters including newline characters.
+         *          You can specify the option only in the options field.
+         */
+        options?: RegexOptions;
+      };
+    }
+
+    export interface ReplaceOne {
+      /**
+       * Replaces the first instance of a matched string in a given input.
+       *
+       * @version 4.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/replaceOne/#mongodb-expression-exp.-replaceOne
+       */
+      $replaceOne: {
+        /**
+         * The string on which you wish to apply the find. Can be any valid expression that resolves to a string or a null. If input refers to a field that is missing, $replaceOne returns null.
+         */
+        input: StringExpression;
+        /**
+         * The string to search for within the given input. Can be any valid expression that resolves to a string or a null. If find refers to a field that is missing, $replaceOne returns null.
+         */
+        find: StringExpression;
+        /**
+         * The string to use to replace the first matched instance of find in input. Can be any valid expression that resolves to a string or a null.
+         */
+        replacement: StringExpression;
+      };
+    }
+
+    export interface ReplaceAll {
+      /**
+       * Replaces all instances of a matched string in a given input.
+       *
+       * @version 4.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/replaceAll/#mongodb-expression-exp.-replaceAll
+       */
+      $replaceAll: {
+        /**
+         * The string on which you wish to apply the find. Can be any valid expression that resolves to a string or a null. If input refers to a field that is missing, $replaceAll returns null.
+         */
+        input: StringExpression;
+        /**
+         * The string to search for within the given input. Can be any valid expression that resolves to a string or a null. If find refers to a field that is missing, $replaceAll returns null.
+         */
+        find: StringExpression;
+        /**
+         * The string to use to replace all matched instances of find in input. Can be any valid expression that resolves to a string or a null.
+         */
+        replacement: StringExpression;
+      };
+    }
+
+    export interface Rtrim {
+      /**
+       * Removes whitespace or the specified characters from the end of a string.
+       *
+       * @version 4.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/rtrim/#mongodb-expression-exp.-rtrim
+       */
+      $rtrim: {
+        /**
+         * The string to trim. The argument can be any valid expression that resolves to a string. For more information on expressions, see Expressions.
+         */
+        input: StringExpression;
+        /**
+         * The character(s) to trim from the beginning of the input.
+         *
+         * The argument can be any valid expression that resolves to a string. The $rtrim operator breaks down the string into individual UTF code point to trim from input.
+         *
+         * If unspecified, $rtrim removes whitespace characters, including the null character. For the list of whitespace characters, see Whitespace Characters.
+         */
+        chars?: StringExpression;
+      };
+    }
+
+    export interface Split {
+      /**
+       * Splits a string into substrings based on a delimiter. Returns an array of substrings. If the delimiter is not found within the string, returns an array containing the original string.
+       *
+       * @version 3.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/split/#mongodb-expression-exp.-split
+       */
+      $split: [StringExpression, StringExpression];
+    }
+
+    export interface StrLenBytes {
+      /**
+       * Returns the number of UTF-8 encoded bytes in a string.
+       *
+       * @version 3.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/strLenBytes/#mongodb-expression-exp.-strLenBytes
+       */
+      $strLenBytes: StringExpression;
+    }
+
+    export interface StrLenCP {
+      /**
+       * Returns the number of UTF-8 code points in a string.
+       *
+       * @version 3.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/strLenCP/#mongodb-expression-exp.-strLenCP
+       */
+      $strLenCP: StringExpression;
+    }
+
+    export interface Strcasecmp {
+      /**
+       * Performs case-insensitive string comparison and returns: 0 if two strings are equivalent, 1 if the first string is greater than the second, and -1 if the first string is less than the second.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/strcasecmp/#mongodb-expression-exp.-strcasecmp
+       */
+      $strcasecmp: [StringExpression, StringExpression];
+    }
+
+    export interface Substr {
+      /**
+       * Deprecated. Use $substrBytes or $substrCP.
+       *
+       * @deprecated 3.4
+       * @alias {Expression.SubstrBytes}
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/substr/#mongodb-expression-exp.-substr
+       */
+      $substr: [StringExpression, number, number];
+    }
+
+    export interface SubstrBytes {
+      /**
+       * Returns the substring of a string. Starts with the character at the specified UTF-8 byte index (zero-based) in the string and continues for the specified number of bytes.
+       *
+       * @version 3.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/substrBytes/#mongodb-expression-exp.-substrBytes
+       */
+      $substrBytes: [StringExpression, number, number];
+    }
+
+    export interface SubstrCP {
+      /**
+       * Returns the substring of a string. Starts with the character at the specified UTF-8 code point (CP) index (zero-based) in the string and continues for the number of code points specified.
+       *
+       * @version 3.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/substrCP/#mongodb-expression-exp.-substrCP
+       */
+      $substrCP: [StringExpression, number, number];
+    }
+
+    export interface ToLower {
+      /**
+       * Converts a string to lowercase. Accepts a single argument expression.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/toLower/#mongodb-expression-exp.-toLower
+       */
+      $toLower: StringExpression;
+    }
+
+    export interface ToString {
+      /**
+       * Converts value to a string.
+       *
+       * @version 4.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/toString/#mongodb-expression-exp.-toString
+       */
+      $toString: Expression;
+    }
+
+    export interface Trim {
+      /**
+       * Removes whitespace or the specified characters from the beginning and end of a string.
+       *
+       * @version 4.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/trim/#mongodb-expression-exp.-trim
+       */
+      $trim: {
+        /**
+         * The string to trim. The argument can be any valid expression that resolves to a string. For more information on expressions, see Expressions.
+         */
+        input: StringExpression;
+        /**
+         * The character(s) to trim from the beginning of the input.
+         *
+         * The argument can be any valid expression that resolves to a string. The $trim operator breaks down the string into individual UTF code point to trim from input.
+         *
+         * If unspecified, $trim removes whitespace characters, including the null character. For the list of whitespace characters, see Whitespace Characters.
+         */
+        chars?: StringExpression;
+      };
+    }
+
+    export interface ToUpper {
+      /**
+       * Converts a string to uppercase. Accepts a single argument expression.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/toUpper/#mongodb-expression-exp.-toUpper
+       */
+      $toUpper: StringExpression;
+    }
+
+    export interface Literal {
+
+      /**
+       * Returns a value without parsing. Use for values that the aggregation pipeline may interpret as an
+       * expression.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/literal/#mongodb-expression-exp.-literal
+       */
+      $literal: any;
+    }
+
+    export interface GetField {
+
+      /**
+       * Returns the value of a specified field from a document. If you don't specify an object, $getField returns
+       * the value of the field from $$CURRENT.
+       *
+       * @version 4.4.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/getField/#mongodb-expression-exp.-getField
+       */
+      $getField: {
+        /**
+         * Field in the input object for which you want to return a value. field can be any valid expression that
+         * resolves to a string constant.
+         */
+        field: StringExpression;
+        /**
+         * A valid expression that contains the field for which you want to return a value. input must resolve to an
+         * object, missing, null, or undefined. If omitted, defaults to the document currently being processed in the
+         * pipeline ($$CURRENT).
+         */
+        input?: ObjectExpression | SpecialPathVariables | NullExpression;
+      }
+    }
+
+    export interface Rand {
+
+      /**
+       * Returns a random float between 0 and 1 each time it is called.
+       *
+       * @version 4.4.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/rand/#mongodb-expression-exp.-rand
+       */
+      $rand: Record<string | number | symbol, never>;
+    }
+
+    export interface SampleRate {
+
+      /**
+       * Matches a random selection of input documents. The number of documents selected approximates the sample
+       * rate expressed as a percentage of the total number of documents.
+       *
+       * @version 4.4.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/sampleRate/#mongodb-expression-exp.-sampleRate
+       */
+      $sampleRate: number;
+    }
+
+    export interface MergeObjects {
+
+      /**
+       * Combines multiple documents into a single document.
+       *
+       * @version 3.6
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/mergeObjects/#mongodb-expression-exp.-mergeObjects
+       */
+      $mergeObjects: ObjectExpression | ObjectExpression[] | ArrayExpression | Record<string, string>;
+    }
+
+    export interface SetField {
+
+      /**
+       * Adds, updates, or removes a specified field in a document.
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/setField/#mongodb-expression-exp.-setField
+       */
+      $setField: {
+        /**
+         * Field in the input object that you want to add, update, or remove. field can be any valid expression that
+         * resolves to a string constant.
+         */
+        field: StringExpression;
+        /**
+         * Document that contains the field that you want to add or update. input must resolve to an object, missing,
+         * null, or undefined
+         */
+        input?: ObjectExpression | NullExpression;
+        /**
+         * The value that you want to assign to field. value can be any valid expression.
+         */
+        value?: Expression | SpecialPathVariables;
+      }
+    }
+
+    export interface UnsetField {
+
+      /**
+       * Removes a specified field in a document.
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/unsetField/#mongodb-expression-exp.-unsetField
+       */
+      $unsetField: {
+        /**
+         * Field in the input object that you want to add, update, or remove. field can be any valid expression that
+         * resolves to a string constant.
+         */
+        field: StringExpression;
+        /**
+         * Document that contains the field that you want to add or update. input must resolve to an object, missing,
+         * null, or undefined.
+         */
+        input?: ObjectExpression | SpecialPathVariables | NullExpression;
+      }
+    }
+
+    export interface Let {
+
+      /**
+       * Binds variables for use in the specified expression, and returns the result of the expression.
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/let/#mongodb-expression-exp.-let
+       */
+      $let: {
+        /**
+         * Assignment block for the variables accessible in the in expression. To assign a variable, specify a
+         * string for the variable name and assign a valid expression for the value.
+         */
+        vars: { [key: string]: Expression; };
+        /**
+         * The expression to evaluate.
+         */
+        in: Expression;
+      }
+    }
+
+    export interface AllElementsTrue {
+      /**
+       * Evaluates an array as a set and returns true if no element in the array is false. Otherwise, returns false. An
+       * empty array returns true.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/allElementsTrue/#mongodb-expression-exp.-allElementsTrue
+       */
+      $allElementsTrue: ArrayExpression;
+    }
+
+    export interface AnyElementsTrue {
+      /**
+       * Evaluates an array as a set and returns true if any of the elements are true and false otherwise. An empty
+       * array returns false.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/anyElementsTrue/#mongodb-expression-exp.-anyElementsTrue
+       */
+      $anyElementTrue: ArrayExpression;
+    }
+
+    export interface SetDifference {
+      /**
+       * Takes two sets and returns an array containing the elements that only exist in the first set; i.e. performs a
+       * relative complement of the second set relative to the first.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/setDifference/#mongodb-expression-exp.-setDifference
+       */
+      $setDifference: [ArrayExpression, ArrayExpression];
+    }
+
+    export interface SetEquals {
+      /**
+       * Compares two or more arrays and returns true if they have the same distinct elements and false otherwise.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/setEquals/#mongodb-expression-exp.-setEquals
+       */
+      $setEquals: ArrayExpression[];
+    }
+
+    export interface SetIntersection {
+      /**
+       * Takes two or more arrays and returns an array that contains the elements that appear in every input array.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/setIntersection/#mongodb-expression-exp.-setIntersection
+       */
+      $setIntersection: ArrayExpression[];
+    }
+
+    export interface SetIsSubset {
+      /**
+       * Takes two arrays and returns true when the first array is a subset of the second, including when the first
+       * array equals the second array, and false otherwise.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/setIsSubset/#mongodb-expression-exp.-setIsSubset
+       */
+      $setIsSubset: [ArrayExpression, ArrayExpression];
+    }
+
+    export interface SetUnion {
+      /**
+       * Takes two or more arrays and returns an array containing the elements that appear in any input array.
+       *
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/setUnion/#mongodb-expression-exp.-setUnion
+       */
+      $setUnion: ArrayExpression[];
+    }
+
+    export interface Accumulator {
+      /**
+       * Defines a custom accumulator operator. Accumulators are operators that maintain their state (e.g. totals,
+       * maximums, minimums, and related data) as documents progress through the pipeline. Use the $accumulator operator
+       * to execute your own JavaScript functions to implement behavior not supported by the MongoDB Query Language. See
+       * also $function.
+       *
+       * @version 4.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/accumulator/#mongodb-expression-exp.-accumulator
+       */
+      $accumulator: {
+        /**
+         * Function used to initialize the state. The init function receives its arguments from the initArgs array
+         * expression. You can specify the function definition as either BSON type Code or String.
+         */
+        init: CodeExpression;
+        /**
+         * Arguments passed to the init function.
+         */
+        initArgs?: ArrayExpression;
+        /**
+         * Function used to accumulate documents. The accumulate function receives its arguments from the current state
+         * and accumulateArgs array expression. The result of the accumulate function becomes the new state. You can
+         * specify the function definition as either BSON type Code or String.
+         */
+        accumulate: CodeExpression;
+        /**
+         * Arguments passed to the accumulate function. You can use accumulateArgs to specify what field value(s) to
+         * pass to the accumulate function.
+         */
+        accumulateArgs: ArrayExpression;
+        /**
+         * Function used to merge two internal states. merge must be either a String or Code BSON type. merge returns
+         * the combined result of the two merged states. For information on when the merge function is called, see Merge
+         * Two States with $merge.
+         */
+        merge: CodeExpression;
+        /**
+         * Function used to update the result of the accumulation.
+         */
+        finalize?: CodeExpression;
+        /**
+         * The language used in the $accumulator code.
+         */
+        lang: 'js';
+      }
+    }
+
+    export interface AddToSet {
+      /**
+       * Returns an array of all unique values that results from applying an expression to each document in a group.
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/addToSet/#mongodb-expression-exp.-addToSet
+       */
+      $addToSet: Expression | Record<string, Expression>;
+    }
+
+    export interface Avg {
+      /**
+       * Returns the average value of the numeric values. $avg ignores non-numeric values.
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/avg/#mongodb-expression-exp.-avg
+       */
+      $avg: Expression;
+    }
+
+    export interface Bottom {
+      /**
+       * Returns the bottom element within a group according to the specified sort order.
+       *
+       * @version 5.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/bottom/#mongodb-group-grp.-bottom
+       */
+      $bottom: {
+        sortBy: AnyObject,
+        output: Expression
+      };
+    }
+
+    export interface BottomN {
+      /**
+       * Returns an aggregation of the bottom n elements within a group, according to the specified sort order.
+       * If the group contains fewer than n elements, $bottomN returns all elements in the group.
+       *
+       * @version 5.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/bottomN/#mongodb-group-grp.-bottomN
+       */
+      $bottomN: {
+        n: Expression,
+        sortBy: AnyObject,
+        output: Expression
+      };
+    }
+
+    export interface Count {
+      /**
+       * Returns the number of documents in a group.
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/count/#mongodb-expression-exp.-count
+       */
+      $count: Record<string | number | symbol, never> | Path;
+    }
+
+    export interface CovariancePop {
+      /**
+       * Returns the population covariance of two numeric expressions that are evaluated using documents in the
+       * $setWindowFields stage window.
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/covariancePop/#mongodb-expression-exp.-covariancePop
+       */
+      $covariancePop: [NumberExpression, NumberExpression];
+    }
+
+    export interface CovarianceSamp {
+      /**
+       * Returns the sample covariance of two numeric expressions that are evaluated using documents in the
+       * $setWindowFields stage window.
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/covarianceSamp/#mongodb-expression-exp.-covarianceSamp
+       */
+      $covarianceSamp: [NumberExpression, NumberExpression];
+    }
+
+    export interface DenseRank {
+      /**
+       * Returns the document position (known as the rank) relative to other documents in the $setWindowFields stage
+       * partition.
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/denseRank/#mongodb-expression-exp.-denseRank
+       */
+      $denseRank: Record<string | number | symbol, never>;
+    }
+
+    export interface Derivative {
+      /**
+       * Returns the average rate of change within the specified window, which is calculated using the:
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/derivative/#mongodb-expression-exp.-derivative
+       */
+      $derivative: {
+        /**
+         * Specifies the expression to evaluate. The expression must evaluate to a number.
+         */
+        input: NumberExpression;
+        /**
+         * A string that specifies the time unit.
+         */
+        unit?: DateUnit;
+      }
+    }
+
+    export interface DocumentNumber {
+      /**
+       * Returns the position of a document (known as the document number) in the $setWindowFields stage partition.
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/documentNumber/#mongodb-expression-exp.-documentNumber
+       */
+      $documentNumber: Record<string | number | symbol, never>;
+    }
+
+    export interface ExpMovingAvg {
+      /**
+       * Returns the exponential moving average of numeric expressions applied to documents in a partition defined in
+       * the $setWindowFields stage.
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/expMovingAvg/#mongodb-expression-exp.-expMovingAvg
+       */
+      $expMovingAvg: {
+        /**
+         * Specifies the expression to evaluate. Non-numeric expressions are ignored.
+         */
+        input: Expression;
+
+        /**
+         * An integer that specifies the number of historical documents that have a significant mathematical weight in
+         * the exponential moving average calculation, with the most recent documents contributing the most weight.
+         *
+         * You must specify either N or alpha. You cannot specify both.
+         */
+        N: NumberExpression;
+
+        /**
+         * A double that specifies the exponential decay value to use in the exponential moving average calculation. A
+         * higher alpha value assigns a lower mathematical significance to previous results from the calculation.
+         *
+         * You must specify either N or alpha. You cannot specify both.
+         */
+        alpha?: never;
+      } |
+      {
+        /**
+         * Specifies the expression to evaluate. Non-numeric expressions are ignored.
+         */
+        input: Expression;
+
+        /**
+         * An integer that specifies the number of historical documents that have a significant mathematical weight in
+         * the exponential moving average calculation, with the most recent documents contributing the most weight.
+         *
+         * You must specify either N or alpha. You cannot specify both.
+         */
+        N?: never;
+
+        /**
+         * A double that specifies the exponential decay value to use in the exponential moving average calculation. A
+         * higher alpha value assigns a lower mathematical significance to previous results from the calculation.
+         *
+         * You must specify either N or alpha. You cannot specify both.
+         */
+        alpha: NumberExpression;
+      }
+    }
+
+    export interface Integral {
+      /**
+       * Returns the approximation of the area under a curve, which is calculated using the trapezoidal rule where each
+       * set of adjacent documents form a trapezoid using the:
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/integral/#mongodb-expression-exp.-integral
+       */
+      $integral: {
+        /**
+         * Specifies the expression to evaluate. You must provide an expression that returns a number.
+         */
+        input: NumberExpression;
+
+        /**
+         * A string that specifies the time unit.
+         */
+        unit?: DateUnit;
+      }
+    }
+
+    export interface Max {
+      /**
+       * Returns the maximum value. $max compares both value and type, using the specified BSON comparison order for
+       * values of different types.
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/max/#mongodb-expression-exp.-max
+       */
+      $max: Expression | Expression[];
+    }
+
+    export interface MaxN {
+      /**
+       * Returns an aggregation of the maxmimum value n elements within a group.
+       * If the group contains fewer than n elements, $maxN returns all elements in the group.
+       *
+       * @version 5.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/maxN/#mongodb-group-grp.-maxN
+       */
+      $maxN: {
+        input: Expression
+        n: Expression,
+      };
+    }
+
+    export interface Min {
+      /**
+       * Returns the minimum value. $min compares both value and type, using the specified BSON comparison order for
+       * values of different types.
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/min/#mongodb-expression-exp.-min
+       */
+      $min: Expression | Expression[];
+    }
+
+    export interface MinN {
+      /**
+       * Returns an aggregation of the minimum value n elements within a group.
+       * If the group contains fewer than n elements, $minN returns all elements in the group.
+       *
+       * @version 5.2
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/minN/#mongodb-group-grp.-minN
+       */
+      $minN: {
+        input: Expression
+        n: Expression,
+      };
+    }
+
+    export interface Push {
+      /**
+       * Returns an array of all values that result from applying an expression to documents.
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/push/#mongodb-expression-exp.-push
+       */
+      $push: Expression | Record<string, Expression>;
+    }
+
+    export interface Rank {
+      /**
+       * Returns the document position (known as the rank) relative to other documents in the $setWindowFields stage
+       * partition.
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/rank/#mongodb-expression-exp.-rank
+       */
+      $rank: Record<string | number | symbol, never>;
+    }
+
+    export interface Shift {
+      /**
+       * Returns the value from an expression applied to a document in a specified position relative to the current
+       * document in the $setWindowFields stage partition.
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/shift/#mongodb-expression-exp.-shift
+       */
+      $shift: {
+        /**
+         * Specifies an expression to evaluate and return in the output.
+         */
+        output: Expression;
+        /**
+         * Specifies an integer with a numeric document position relative to the current document in the output.
+         */
+        by: number;
+        /**
+         * Specifies an optional default expression to evaluate if the document position is outside of the implicit
+         * $setWindowFields stage window. The implicit window contains all the documents in the partition.
+         */
+        default?: Expression;
+      }
+    }
+
+    export interface Median {
+      /**
+       * Returns an approximation of the median, the 50th percentile, as a scalar value.
+       *
+       * @see https://www.mongodb.com/docs/v7.0/reference/operator/aggregation/median/
+       */
+      $median: {
+        input: number | Expression,
+        method: 'approximate'
+      }
+    }
+
+    export interface StdDevPop {
+      /**
+       * Calculates the population standard deviation of the input values. Use if the values encompass the entire
+       * population of data you want to represent and do not wish to generalize about a larger population. $stdDevPop
+       * ignores non-numeric values.
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/stdDevPop/#mongodb-expression-exp.-stdDevPop
+       */
+      $stdDevPop: Expression;
+    }
+
+    export interface StdDevSamp {
+      /**
+       * Calculates the sample standard deviation of the input values. Use if the values encompass a sample of a
+       * population of data from which to generalize about the population. $stdDevSamp ignores non-numeric values.
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/stdDevSamp/#mongodb-expression-exp.-stdDevSamp
+       */
+      $stdDevSamp: Expression;
+    }
+
+    export interface Sum {
+      /**
+       * Calculates and returns the collective sum of numeric values. $sum ignores non-numeric values.
+       *
+       * @version 5.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/sum/#mongodb-expression-exp.-sum
+       */
+      $sum: number | Expression | Expression[];
+    }
+
+    export interface Convert<K extends 'double' | 1 | 'string' | 2 | 'objectId' | 7 | 'bool' | 8 | 'date' | 9 | 'int' | 16 | 'long' | 18 | 'decimal' | 19 = 'double' | 1 | 'string' | 2 | 'objectId' | 7 | 'bool' | 8 | 'date' | 9 | 'int' | 16 | 'long' | 18 | 'decimal' | 19> {
+      /**
+       * Checks if the specified expression resolves to one of the following numeric
+       * - Integer
+       * - Decimal
+       * - Double
+       * - Long
+       *
+       * @version 4.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/convert/#mongodb-expression-exp.-convert
+       */
+      $convert: {
+        input: Expression;
+        to: K;
+        onError?: Expression;
+        onNull?: Expression;
+      };
+    }
+
+    export interface IsNumber {
+      /**
+       * Checks if the specified expression resolves to one of the following numeric
+       * - Integer
+       * - Decimal
+       * - Double
+       * - Long
+       *
+       * @version 4.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/isNumber/#mongodb-expression-exp.-isNumber
+       */
+      $isNumber: Expression;
+    }
+
+    export interface ToBool {
+      /**
+       * Converts a value to a boolean.
+       *
+       * @version 4.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/toBool/#mongodb-expression-exp.-toBool
+       */
+      $toBool: Expression;
+    }
+
+    export interface ToDecimal {
+      /**
+       * Converts a value to a decimal. If the value cannot be converted to a decimal, $toDecimal errors. If the value
+       * is null or missing, $toDecimal returns null.
+       *
+       * @version 4.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/toDecimal/#mongodb-expression-exp.-toDecimal
+       */
+      $toDecimal: Expression;
+    }
+
+    export interface ToDouble {
+      /**
+       * Converts a value to a double. If the value cannot be converted to an double, $toDouble errors. If the value is
+       * null or missing, $toDouble returns null.
+       *
+       * @version 4.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/toDouble/#mongodb-expression-exp.-toDouble
+       */
+      $toDouble: Expression;
+    }
+
+    export interface ToInt {
+      /**
+       * Converts a value to a long. If the value cannot be converted to a long, $toLong errors. If the value is null or
+       * missing, $toLong returns null.
+       *
+       * @version 4.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/toInt/#mongodb-expression-exp.-toInt
+       */
+      $toInt: Expression;
+    }
+
+    export interface ToLong {
+      /**
+       * Converts a value to a long. If the value cannot be converted to a long, $toLong errors. If the value is null or
+       * missing, $toLong returns null.
+       *
+       * @version 4.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/toLong/#mongodb-expression-exp.-toLong
+       */
+      $toLong: Expression;
+    }
+
+    export interface ToObjectId {
+      /**
+       * Converts a value to an ObjectId(). If the value cannot be converted to an ObjectId, $toObjectId errors. If the
+       * value is null or missing, $toObjectId returns null.
+       *
+       * @version 4.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/toObjectId/#mongodb-expression-exp.-toObjectId
+       */
+      $toObjectId: Expression;
+    }
+
+    export interface Top {
+      $top: {
+        sortBy: AnyObject,
+        output: Expression
+      };
+    }
+
+    export interface TopN {
+      $topN: {
+        n: Expression,
+        sortBy: AnyObject,
+        output: Expression
+      };
+    }
+
+    export interface ToString {
+      /**
+       * Converts a value to a string. If the value cannot be converted to a string, $toString errors. If the value is
+       * null or missing, $toString returns null.
+       *
+       * @version 4.0
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/toString/#mongodb-expression-exp.-toString
+       */
+      $toString: Expression;
+    }
+
+    export interface Type {
+      /**
+       * Returns a string that specifies the BSON type of the argument.
+       *
+       * @version 3.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/type/#mongodb-expression-exp.-type
+       */
+      $type: Expression;
+    }
+
+    export interface BinarySize {
+      /**
+       * Returns the size of a given string or binary data value's content in bytes.
+       *
+       * @version 4.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/binarySize/#mongodb-expression-exp.-binarySize
+       */
+      $binarySize: NullExpression | StringExpression | BinaryExpression;
+    }
+
+    export interface BsonSize {
+      /**
+       * Returns the size in bytes of a given document (i.e. bsontype Object) when encoded as BSON. You can use
+       * $bsonSize as an alternative to the Object.bsonSize() method.
+       *
+       * @version 4.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/bsonSize/#mongodb-expression-exp.-bsonSize
+       */
+      $bsonSize: NullExpression | ObjectExpression;
+    }
+
+    export interface Function {
+      /**
+       * Defines a custom aggregation function or expression in JavaScript.
+       *
+       * @version 4.4
+       * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/function/#mongodb-expression-exp.-function
+       */
+      $function: {
+        /**
+         * 	The function definition. You can specify the function definition as either BSON type Code or String.
+         */
+        body: CodeExpression;
+        /**
+         * Arguments passed to the function body. If the body function does not take an argument, you can specify an
+         * empty array [ ]
+         */
+        args: ArrayExpression;
+        /**
+         * The language used in the body. You must specify lang: "js".
+         */
+        lang: 'js'
+      };
+    }
+  }
+
+  type Path = string;
+
+
+  export type Expression =
+    Path |
+    ArithmeticExpressionOperator |
+    ArrayExpressionOperator |
+    BooleanExpressionOperator |
+    ComparisonExpressionOperator |
+    ConditionalExpressionOperator |
+    CustomAggregationExpressionOperator |
+    DataSizeOperator |
+    DateExpressionOperator |
+    LiteralExpressionOperator |
+    MiscellaneousExpressionOperator |
+    ObjectExpressionOperator |
+    SetExpressionOperator |
+    StringExpressionOperator |
+    TextExpressionOperator |
+    TrigonometryExpressionOperator |
+    TypeExpressionOperator |
+    AccumulatorOperator |
+    VariableExpressionOperator |
+    WindowOperator |
+    Expression.Top |
+    Expression.TopN |
+    any;
+
+  export type NullExpression = null;
+
+  export type CodeExpression =
+    string |
+    Function;
+
+  export type BinaryExpression =
+    Path;
+
+  export type FunctionExpression =
+    Expression.Function;
+
+  export type AnyExpression =
+    ArrayExpression |
+    BooleanExpression |
+    NumberExpression |
+    ObjectExpression |
+    StringExpression |
+    DateExpression |
+    BinaryExpression |
+    FunctionExpression |
+    ObjectIdExpression |
+    ConditionalExpressionOperator |
+    any;
+
+  export type ObjectIdExpression =
+    TypeExpressionOperatorReturningObjectId;
+
+  export type ArrayExpression<T = any> =
+    T[] |
+    Path |
+    ArrayExpressionOperatorReturningAny |
+    ArrayExpressionOperatorReturningArray |
+    StringExpressionOperatorReturningArray |
+    ObjectExpressionOperatorReturningArray |
+    SetExpressionOperatorReturningArray |
+    LiteralExpressionOperatorReturningAny |
+    WindowOperatorReturningArray |
+    CustomAggregationExpressionOperatorReturningAny |
+    WindowOperatorReturningAny;
+
+  export type BooleanExpression =
+    boolean |
+    Path |
+    BooleanExpressionOperator |
+    ArrayExpressionOperatorReturningAny |
+    ComparisonExpressionOperatorReturningBoolean |
+    StringExpressionOperatorReturningBoolean |
+    SetExpressionOperatorReturningBoolean |
+    LiteralExpressionOperatorReturningAny |
+    CustomAggregationExpressionOperatorReturningAny |
+    TypeExpressionOperatorReturningBoolean;
+
+  export type NumberExpression =
+    number |
+    Path |
+    ArrayExpressionOperatorReturningAny |
+    ArrayExpressionOperatorReturningNumber |
+    ArithmeticExpressionOperator |
+    ComparisonExpressionOperatorReturningNumber |
+    TrigonometryExpressionOperator |
+    MiscellaneousExpressionOperatorReturningNumber |
+    StringExpressionOperatorReturningNumber |
+    LiteralExpressionOperatorReturningAny |
+    ObjectExpressionOperator |
+    SetExpressionOperator |
+    WindowOperatorReturningNumber |
+    WindowOperatorReturningAny |
+    DataSizeOperatorReturningNumber |
+    CustomAggregationExpressionOperatorReturningAny |
+    TypeExpressionOperatorReturningNumber |
+    DateExpression |
+    DateExpressionOperatorReturningNumber;
+
+  export type ObjectExpression =
+    Path |
+    ArrayExpressionOperatorReturningAny |
+    DateExpressionOperatorReturningObject |
+    StringExpressionOperatorReturningObject |
+    ObjectExpressionOperatorReturningObject |
+    CustomAggregationExpressionOperatorReturningAny |
+    LiteralExpressionOperatorReturningAny;
+
+  export type StringExpression<T = string> =
+    Path |
+    ArrayExpressionOperatorReturningAny |
+    DateExpressionOperatorReturningString |
+    StringExpressionOperatorReturningString |
+    LiteralExpressionReturningAny |
+    CustomAggregationExpressionOperatorReturningAny |
+    TypeExpressionOperatorReturningString |
+    T;
+
+  export type DateExpression =
+    Path |
+    NativeDate |
+    DateExpressionOperatorReturningDate |
+    TypeExpressionOperatorReturningDate |
+    LiteralExpressionReturningAny;
+
+  export type ArithmeticExpressionOperator =
+    Expression.Abs |
+    Expression.Add |
+    Expression.Ceil |
+    Expression.Divide |
+    Expression.Exp |
+    Expression.Floor |
+    Expression.Ln |
+    Expression.Log |
+    Expression.Log10 |
+    Expression.Mod |
+    Expression.Multiply |
+    Expression.Pow |
+    Expression.Round |
+    Expression.Sqrt |
+    Expression.Subtract |
+    Expression.Trunc;
+
+  export type ArrayExpressionOperator =
+    ArrayExpressionOperatorReturningAny |
+    ArrayExpressionOperatorReturningBoolean |
+    ArrayExpressionOperatorReturningNumber |
+    ArrayExpressionOperatorReturningObject;
+
+  export type LiteralExpressionOperator =
+    Expression.Literal;
+
+  export type LiteralExpressionReturningAny =
+    LiteralExpressionOperatorReturningAny;
+
+  export type LiteralExpressionOperatorReturningAny =
+    Expression.Literal;
+
+  export type MiscellaneousExpressionOperator =
+    Expression.Rand |
+    Expression.SampleRate;
+
+  export type MiscellaneousExpressionOperatorReturningNumber =
+    Expression.Rand;
+
+  export type ArrayExpressionOperatorReturningAny =
+    Expression.ArrayElemAt |
+    Expression.First |
+    Expression.Last |
+    Expression.Reduce;
+
+  export type ArrayExpressionOperatorReturningArray =
+    Expression.ConcatArrays |
+    Expression.Filter |
+    Expression.FirstN |
+    Expression.LastN |
+    Expression.Map |
+    Expression.ObjectToArray |
+    Expression.Range |
+    Expression.ReverseArray |
+    Expression.Slice |
+    Expression.Zip;
+
+  export type ArrayExpressionOperatorReturningNumber =
+    Expression.IndexOfArray |
+    Expression.Size;
+
+  export type ArrayExpressionOperatorReturningObject =
+    Expression.ArrayToObject;
+
+  export type ArrayExpressionOperatorReturningBoolean =
+    Expression.In |
+    Expression.IsArray;
+
+  export type BooleanExpressionOperator =
+    Expression.And |
+    Expression.Or |
+    Expression.Not;
+
+  export type ComparisonExpressionOperator =
+    ComparisonExpressionOperatorReturningBoolean |
+    ComparisonExpressionOperatorReturningNumber;
+
+  export type ComparisonExpressionOperatorReturningBoolean =
+    Expression.Eq |
+    Expression.Gt |
+    Expression.Gte |
+    Expression.Lt |
+    Expression.Lte |
+    Expression.Ne;
+
+  export type ComparisonExpressionOperatorReturningNumber =
+    Expression.Cmp;
+
+  export type ConditionalExpressionOperator =
+    Expression.Cond |
+    Expression.IfNull |
+    Expression.Switch;
+
+  export type StringExpressionOperator =
+    StringExpressionOperatorReturningArray |
+    StringExpressionOperatorReturningBoolean |
+    StringExpressionOperatorReturningNumber |
+    StringExpressionOperatorReturningObject |
+    StringExpressionOperatorReturningString;
+
+  export type StringExpressionOperatorReturningArray =
+    Expression.RegexFindAll |
+    Expression.Split;
+
+  export type StringExpressionOperatorReturningBoolean =
+    Expression.RegexMatch;
+
+  export type StringExpressionOperatorReturningNumber =
+    Expression.IndexOfBytes |
+    Expression.IndexOfCP |
+    Expression.Strcasecmp |
+    Expression.StrLenBytes |
+    Expression.StrLenCP;
+
+  export type StringExpressionOperatorReturningObject =
+    Expression.RegexFind;
+
+  export type StringExpressionOperatorReturningString =
+    Expression.Concat |
+    Expression.Ltrim |
+    Expression.Ltrim |
+    Expression.ReplaceOne |
+    Expression.ReplaceAll |
+    Expression.Substr |
+    Expression.SubstrBytes |
+    Expression.SubstrCP |
+    Expression.ToLower |
+    Expression.ToString |
+    Expression.ToUpper |
+    Expression.Trim;
+
+  export type ObjectExpressionOperator =
+    Expression.MergeObjects |
+    Expression.ObjectToArray |
+    Expression.SetField |
+    Expression.UnsetField;
+
+  export type ObjectExpressionOperatorReturningArray =
+    Expression.ObjectToArray;
+
+  export type ObjectExpressionOperatorReturningObject =
+    Expression.MergeObjects |
+    Expression.SetField |
+    Expression.UnsetField;
+
+  export type VariableExpressionOperator =
+    Expression.Let;
+
+  export type VariableExpressionOperatorReturningAny =
+    Expression.Let;
+
+  export type SetExpressionOperator =
+    Expression.AllElementsTrue |
+    Expression.AnyElementsTrue |
+    Expression.SetDifference |
+    Expression.SetEquals |
+    Expression.SetIntersection |
+    Expression.SetIsSubset |
+    Expression.SetUnion;
+
+  export type SetExpressionOperatorReturningBoolean =
+    Expression.AllElementsTrue |
+    Expression.AnyElementsTrue |
+    Expression.SetEquals |
+    Expression.SetIsSubset;
+
+  export type SetExpressionOperatorReturningArray =
+    Expression.SetDifference |
+    Expression.SetIntersection |
+    Expression.SetUnion;
+
+  /**
+   * Trigonometry expressions perform trigonometric operations on numbers.
+   * Values that represent angles are always input or output in radians.
+   * Use $degreesToRadians and $radiansToDegrees to convert between degree
+   * and radian measurements.
+   */
+  export type TrigonometryExpressionOperator =
+    Expression.Sin |
+    Expression.Cos |
+    Expression.Tan |
+    Expression.Asin |
+    Expression.Acos |
+    Expression.Atan |
+    Expression.Atan2 |
+    Expression.Asinh |
+    Expression.Acosh |
+    Expression.Atanh |
+    Expression.Sinh |
+    Expression.Cosh |
+    Expression.Tanh |
+    Expression.DegreesToRadians |
+    Expression.RadiansToDegrees;
+
+  export type TextExpressionOperator =
+    Expression.Meta;
+
+  export type WindowOperator =
+    Expression.AddToSet |
+    Expression.Avg |
+    Expression.Count |
+    Expression.CovariancePop |
+    Expression.CovarianceSamp |
+    Expression.DenseRank |
+    Expression.Derivative |
+    Expression.DocumentNumber |
+    Expression.ExpMovingAvg |
+    Expression.First |
+    Expression.FirstN |
+    Expression.Integral |
+    Expression.Last |
+    Expression.LastN |
+    Expression.LinearFill |
+    Expression.Locf |
+    Expression.Max |
+    Expression.MaxN |
+    Expression.Median |
+    Expression.Min |
+    Expression.MinN |
+    Expression.Push |
+    Expression.Rank |
+    Expression.Shift |
+    Expression.StdDevPop |
+    Expression.StdDevSamp |
+    Expression.Sum;
+
+  export type WindowOperatorReturningAny =
+    Expression.First |
+    Expression.Last |
+    Expression.Shift;
+
+  export type WindowOperatorReturningArray =
+    Expression.AddToSet |
+    Expression.FirstN |
+    Expression.LastN |
+    Expression.MaxN |
+    Expression.MinN |
+    Expression.Push;
+
+  export type WindowOperatorReturningNumber =
+    Expression.Avg |
+    Expression.Count |
+    Expression.CovariancePop |
+    Expression.CovarianceSamp |
+    Expression.DenseRank |
+    Expression.DocumentNumber |
+    Expression.ExpMovingAvg |
+    Expression.Integral |
+    Expression.Max |
+    Expression.Median |
+    Expression.Min |
+    Expression.StdDevPop |
+    Expression.StdDevSamp |
+    Expression.Sum;
+
+  export type TypeExpressionOperator =
+    Expression.Convert |
+    Expression.IsNumber |
+    Expression.ToBool |
+    Expression.ToDate |
+    Expression.ToDecimal |
+    Expression.ToDouble |
+    Expression.ToInt |
+    Expression.ToLong |
+    Expression.ToObjectId |
+    Expression.ToString |
+    Expression.Type;
+
+  export type TypeExpressionOperatorReturningNumber =
+    Expression.Convert<'double' | 1 | 'int' | 16 | 'long' | 18 | 'decimal' | 19> |
+    Expression.ToDecimal |
+    Expression.ToDouble |
+    Expression.ToInt |
+    Expression.ToLong;
+
+  export type TypeExpressionOperatorReturningBoolean =
+    Expression.Convert<'bool' | 8> |
+    Expression.IsNumber |
+    Expression.ToBool;
+
+
+  export type TypeExpressionOperatorReturningString =
+    Expression.Convert<'string' | 2> |
+    Expression.ToString |
+    Expression.Type;
+
+  export type TypeExpressionOperatorReturningObjectId =
+    Expression.Convert<'objectId' | 7> |
+    Expression.ToObjectId;
+
+  export type TypeExpressionOperatorReturningDate =
+    Expression.Convert<'date' | 9> |
+    Expression.ToDate;
+
+  export type DataSizeOperator =
+    Expression.BinarySize |
+    Expression.BsonSize;
+
+  export type DataSizeOperatorReturningNumber =
+    Expression.BinarySize |
+    Expression.BsonSize;
+
+  export type CustomAggregationExpressionOperator =
+    Expression.Accumulator |
+    Expression.Function;
+
+  export type CustomAggregationExpressionOperatorReturningAny =
+    Expression.Function;
+
+  export type AccumulatorOperator =
+    Expression.Accumulator |
+    Expression.AddToSet |
+    Expression.Avg |
+    Expression.Bottom |
+    Expression.BottomN |
+    Expression.Count |
+    Expression.First |
+    Expression.FirstN |
+    Expression.Last |
+    Expression.LastN |
+    Expression.Max |
+    Expression.MaxN |
+    Expression.Median |
+    Expression.MergeObjects |
+    Expression.Min |
+    Expression.MinN |
+    Expression.Push |
+    Expression.StdDevPop |
+    Expression.StdDevSamp |
+    Expression.Sum |
+    Expression.Top |
+    Expression.TopN;
+
+  export type tzExpression = UTCOffset | StringExpressionOperatorReturningBoolean | string;
+
+  type hh = '-00' | '-01' | '-02' | '-03' | '-04' | '-05' | '-06' | '-07' | '-08' | '-09' | '-10' | '-11' | '-12' |
+  '+00' | '+01' | '+02' | '+03' | '+04' | '+05' | '+06' | '+07' | '+08' | '+09' | '+10' | '+11' | '+12' | '+13' | '+14';
+  type mm = '00' | '30' | '45';
+
+  type UTCOffset = `${hh}` | `${hh}${mm}` | `${hh}:${mm}`;
+
+  type RegexOptions =
+    'i' | 'm' | 's' | 'x' |
+    'is' | 'im' | 'ix' | 'si' | 'sm' | 'sx' | 'mi' | 'ms' | 'mx' | 'xi' | 'xs' | 'xm' |
+    'ism' | 'isx' | 'ims' | 'imx' | 'ixs' | 'ixm' | 'sim' | 'six' | 'smi' | 'smx' | 'sxi' | 'sxm' | 'mis' | 'mix' | 'msi' | 'msx' | 'mxi' | 'mxs' | 'xis' | 'xim' | 'xsi' | 'xsm' | 'xmi' | 'xms' |
+    'ismx' | 'isxm' | 'imsx' | 'imxs' | 'ixsm' | 'ixms' | 'simx' | 'sixm' | 'smix' | 'smxi' | 'sxim' | 'sxmi' | 'misx' | 'mixs' | 'msix' | 'msxi' | 'mxis' | 'mxsi' | 'xism' | 'xims' | 'xsim' | 'xsmi' | 'xmis' | 'xmsi';
+
+  type StartOfWeek =
+    'monday' | 'mon' |
+    'tuesday' | 'tue' |
+    'wednesday' | 'wed' |
+    'thursday' | 'thu' |
+    'friday' | 'fri' |
+    'saturday' | 'sat' |
+    'sunday' | 'sun';
+
+  type DateUnit = 'year' | 'quarter' | 'week' | 'month' | 'day' | 'hour' | 'minute' | 'second' | 'millisecond';
+
+  type FormatString = string;
+
+  export type DateExpressionOperator =
+    DateExpressionOperatorReturningDate |
+    DateExpressionOperatorReturningNumber |
+    DateExpressionOperatorReturningString |
+    DateExpressionOperatorReturningObject;
+
+  export type DateExpressionOperatorReturningObject =
+    Expression.DateToParts;
+
+  export type DateExpressionOperatorReturningNumber =
+    Expression.DateDiff |
+    Expression.DayOfMonth |
+    Expression.DayOfWeek |
+    Expression.DayOfYear |
+    Expression.IsoDayOfWeek |
+    Expression.IsoWeek |
+    Expression.IsoWeekYear |
+    Expression.Millisecond |
+    Expression.Second |
+    Expression.Minute |
+    Expression.Hour |
+    Expression.Month |
+    Expression.Year;
+
+  export type DateExpressionOperatorReturningDate =
+    Expression.DateAdd |
+    Expression.DateFromParts |
+    Expression.DateFromString |
+    Expression.DateSubtract |
+    Expression.DateTrunc |
+    Expression.ToDate;
+
+  export type DateExpressionOperatorReturningString =
+    Expression.DateToString;
+
+}
diff --git a/backend/node_modules/mongoose/types/helpers.d.ts b/backend/node_modules/mongoose/types/helpers.d.ts
new file mode 100644
index 0000000..91e2ea2
--- /dev/null
+++ b/backend/node_modules/mongoose/types/helpers.d.ts
@@ -0,0 +1,32 @@
+declare module 'mongoose' {
+  import mongodb = require('mongodb');
+
+  /**
+   * Mongoose uses this function to get the current time when setting
+   * [timestamps](/docs/guide.html#timestamps). You may stub out this function
+   * using a tool like [Sinon](https://www.npmjs.com/package/sinon) for testing.
+   */
+  function now(): NativeDate;
+
+  /**
+   * Tells `sanitizeFilter()` to skip the given object when filtering out potential query selector injection attacks.
+   * Use this method when you have a known query selector that you want to use.
+   */
+  function trusted<T>(obj: T): T;
+
+  /**
+   * Returns true if the given value is a Mongoose ObjectId (using `instanceof`) or if the
+   * given value is a 24 character hex string, which is the most commonly used string representation
+   * of an ObjectId.
+   */
+  function isObjectIdOrHexString(v: mongodb.ObjectId): true;
+  function isObjectIdOrHexString(v: mongodb.ObjectId | string): boolean;
+  function isObjectIdOrHexString(v: any): false;
+
+  /**
+   * Returns true if Mongoose can cast the given value to an ObjectId, or
+   * false otherwise.
+   */
+  function isValidObjectId(v: mongodb.ObjectId | Types.ObjectId): true;
+  function isValidObjectId(v: any): boolean;
+}
diff --git a/backend/node_modules/mongoose/types/index.d.ts b/backend/node_modules/mongoose/types/index.d.ts
new file mode 100644
index 0000000..f1a6b22
--- /dev/null
+++ b/backend/node_modules/mongoose/types/index.d.ts
@@ -0,0 +1,847 @@
+/// <reference path="./aggregate.d.ts" />
+/// <reference path="./callback.d.ts" />
+/// <reference path="./collection.d.ts" />
+/// <reference path="./connection.d.ts" />
+/// <reference path="./cursor.d.ts" />
+/// <reference path="./document.d.ts" />
+/// <reference path="./error.d.ts" />
+/// <reference path="./expressions.d.ts" />
+/// <reference path="./helpers.d.ts" />
+/// <reference path="./middlewares.d.ts" />
+/// <reference path="./indexes.d.ts" />
+/// <reference path="./models.d.ts" />
+/// <reference path="./mongooseoptions.d.ts" />
+/// <reference path="./pipelinestage.d.ts" />
+/// <reference path="./populate.d.ts" />
+/// <reference path="./query.d.ts" />
+/// <reference path="./schemaoptions.d.ts" />
+/// <reference path="./schematypes.d.ts" />
+/// <reference path="./session.d.ts" />
+/// <reference path="./types.d.ts" />
+/// <reference path="./utility.d.ts" />
+/// <reference path="./validation.d.ts" />
+/// <reference path="./inferrawdoctype.d.ts" />
+/// <reference path="./inferschematype.d.ts" />
+/// <reference path="./virtuals.d.ts" />
+/// <reference path="./augmentations.d.ts" />
+
+declare class NativeDate extends globalThis.Date { }
+
+declare module 'mongoose' {
+  import Kareem = require('kareem');
+  import events = require('events');
+  import mongodb = require('mongodb');
+  import mongoose = require('mongoose');
+
+  export type Mongoose = typeof mongoose;
+
+  /**
+   * Mongoose constructor. The exports object of the `mongoose` module is an instance of this
+   * class. Most apps will only use this one instance.
+   */
+  export const Mongoose: new (options?: MongooseOptions | null) => Mongoose;
+
+  export let Promise: any;
+
+  /**
+   * Can be extended to explicitly type specific models.
+   */
+  export interface Models {
+    [modelName: string]: Model<any>
+  }
+
+  /** An array containing all models associated with this Mongoose instance. */
+  export const models: Models;
+
+  /**
+   * Removes the model named `name` from the default connection, if it exists.
+   * You can use this function to clean up any models you created in your tests to
+   * prevent OverwriteModelErrors.
+   */
+  export function deleteModel(name: string | RegExp): Mongoose;
+
+  /**
+   * Sanitizes query filters against query selector injection attacks by wrapping
+   * any nested objects that have a property whose name starts with `$` in a `$eq`.
+   */
+  export function sanitizeFilter<T>(filter: FilterQuery<T>): FilterQuery<T>;
+
+  /** Gets mongoose options */
+  export function get<K extends keyof MongooseOptions>(key: K): MongooseOptions[K];
+
+  export function omitUndefined<T extends Record<string, any>>(val: T): T;
+
+  /* ! ignore */
+  export type CompileModelOptions = {
+    overwriteModels?: boolean,
+    connection?: Connection
+  };
+
+  export function model<TSchema extends Schema = any>(
+    name: string,
+    schema?: TSchema,
+    collection?: string,
+    options?: CompileModelOptions
+  ): Model<
+  InferSchemaType<TSchema>,
+  ObtainSchemaGeneric<TSchema, 'TQueryHelpers'>,
+  ObtainSchemaGeneric<TSchema, 'TInstanceMethods'>,
+  ObtainSchemaGeneric<TSchema, 'TVirtuals'>,
+  HydratedDocument<
+  InferSchemaType<TSchema>,
+  ObtainSchemaGeneric<TSchema, 'TVirtuals'> & ObtainSchemaGeneric<TSchema, 'TInstanceMethods'>,
+  ObtainSchemaGeneric<TSchema, 'TQueryHelpers'>
+  >,
+  TSchema
+  > & ObtainSchemaGeneric<TSchema, 'TStaticMethods'>;
+
+  export function model<T>(name: string, schema?: Schema<T, any, any> | Schema<T & Document, any, any>, collection?: string, options?: CompileModelOptions): Model<T>;
+
+  export function model<T, U, TQueryHelpers = {}>(
+    name: string,
+    schema?: Schema<T, any, any, TQueryHelpers, any, any, any>,
+    collection?: string,
+    options?: CompileModelOptions
+  ): U;
+
+  /** Returns an array of model names created on this instance of Mongoose. */
+  export function modelNames(): Array<string>;
+
+  /**
+   * Overwrites the current driver used by this Mongoose instance. A driver is a
+   * Mongoose-specific interface that defines functions like `find()`.
+   */
+  export function setDriver(driver: any): Mongoose;
+
+  /** The node-mongodb-native driver Mongoose uses. */
+  export { mongodb as mongo };
+
+  /** Declares a global plugin executed on all Schemas. */
+  export function plugin(fn: (schema: Schema, opts?: any) => void, opts?: any): Mongoose;
+
+  /** Getter/setter around function for pluralizing collection names. */
+  export function pluralize(fn?: ((str: string) => string) | null): ((str: string) => string) | null;
+
+  /** Sets mongoose options */
+  export function set<K extends keyof MongooseOptions>(key: K, value: MongooseOptions[K]): Mongoose;
+  export function set(options: { [K in keyof MongooseOptions]: MongooseOptions[K] }): Mongoose;
+
+  /** The Mongoose version */
+  export const version: string;
+
+  export type AnyKeys<T> = { [P in keyof T]?: T[P] | any };
+  export interface AnyObject {
+    [k: string]: any
+  }
+
+  export type Require_id<T> = T extends { _id?: infer U }
+    ? IfAny<U, T & { _id: Types.ObjectId }, T & Required<{ _id: U }>>
+    : T & { _id: Types.ObjectId };
+
+  export type Default__v<T> = T extends { __v?: infer U }
+    ? T
+    : T & { __v: number };
+
+  /** Helper type for getting the hydrated document type from the raw document type. The hydrated document type is what `new MyModel()` returns. */
+  export type HydratedDocument<
+    DocType,
+    TOverrides = {},
+    TQueryHelpers = {}
+  > = IfAny<
+    DocType,
+    any,
+    TOverrides extends Record<string, never> ?
+      Document<unknown, TQueryHelpers, DocType> & Default__v<Require_id<DocType>> :
+      IfAny<
+        TOverrides,
+        Document<unknown, TQueryHelpers, DocType> & Default__v<Require_id<DocType>>,
+        Document<unknown, TQueryHelpers, DocType> & MergeType<
+          Default__v<Require_id<DocType>>,
+          TOverrides
+        >
+      >
+  >;
+  export type HydratedSingleSubdocument<
+    DocType,
+    TOverrides = {}
+  > = IfAny<
+  DocType,
+  any,
+  TOverrides extends Record<string, never> ?
+    Types.Subdocument<unknown, Record<string, never>, DocType> & Require_id<DocType> :
+    IfAny<
+      TOverrides,
+      Types.Subdocument<unknown, Record<string, never>, DocType> & Require_id<DocType>,
+      Types.Subdocument<unknown, Record<string, never>, DocType> & MergeType<
+        Require_id<DocType>,
+        TOverrides
+      >
+    >
+  >;
+  export type HydratedArraySubdocument<DocType, TOverrides = {}> = IfAny<
+    DocType,
+    any,
+    TOverrides extends Record<string, never> ?
+      Types.ArraySubdocument<unknown, Record<string, never>, DocType> & Require_id<DocType> :
+      IfAny<
+        TOverrides,
+        Types.ArraySubdocument<unknown, Record<string, never>, DocType> & Require_id<DocType>,
+        Types.ArraySubdocument<unknown, Record<string, never>, DocType> & MergeType<
+          Require_id<DocType>,
+          TOverrides
+        >
+      >
+    >;
+
+  export type HydratedDocumentFromSchema<TSchema extends Schema> = HydratedDocument<
+  InferSchemaType<TSchema>,
+  ObtainSchemaGeneric<TSchema, 'TInstanceMethods'>,
+  ObtainSchemaGeneric<TSchema, 'TQueryHelpers'>
+  >;
+
+  export interface TagSet {
+    [k: string]: string;
+  }
+
+  export interface ToObjectOptions<THydratedDocumentType = HydratedDocument<unknown>> {
+    /** apply all getters (path and virtual getters) */
+    getters?: boolean;
+    /** apply virtual getters (can override getters option) */
+    virtuals?: boolean | string[];
+    /** if `options.virtuals = true`, you can set `options.aliases = false` to skip applying aliases. This option is a no-op if `options.virtuals = false`. */
+    aliases?: boolean;
+    /** remove empty objects (defaults to true) */
+    minimize?: boolean;
+    /** if set, mongoose will call this function to allow you to transform the returned object */
+    transform?: boolean | ((
+      doc: THydratedDocumentType,
+      ret: Record<string, any>,
+      options: ToObjectOptions<THydratedDocumentType>
+    ) => any);
+    /** if true, replace any conventionally populated paths with the original id in the output. Has no affect on virtual populated paths. */
+    depopulate?: boolean;
+    /** if false, exclude the version key (`__v` by default) from the output */
+    versionKey?: boolean;
+    /** if true, convert Maps to POJOs. Useful if you want to `JSON.stringify()` the result of `toObject()`. */
+    flattenMaps?: boolean;
+    /** if true, convert any ObjectIds in the result to 24 character hex strings. */
+    flattenObjectIds?: boolean;
+    /** If true, omits fields that are excluded in this document's projection. Unless you specified a projection, this will omit any field that has `select: false` in the schema. */
+    useProjection?: boolean;
+  }
+
+  export type DiscriminatorModel<M, T> = T extends Model<infer T, infer TQueryHelpers, infer TInstanceMethods, infer TVirtuals>
+    ?
+    M extends Model<infer M, infer MQueryHelpers, infer MInstanceMethods, infer MVirtuals>
+      ? Model<Omit<M, keyof T> & T, MQueryHelpers | TQueryHelpers, MInstanceMethods | TInstanceMethods, MVirtuals | TVirtuals>
+      : M
+    : M;
+
+  export type DiscriminatorSchema<DocType, M, TInstanceMethods, TQueryHelpers, TVirtuals, TStaticMethods, DisSchema> =
+    DisSchema extends Schema<infer DisSchemaEDocType, infer DisSchemaM, infer DisSchemaInstanceMethods, infer DisSchemaQueryhelpers, infer DisSchemaVirtuals, infer DisSchemaStatics>
+      ? Schema<MergeType<DocType, DisSchemaEDocType>, DiscriminatorModel<DisSchemaM, M>, DisSchemaInstanceMethods | TInstanceMethods, DisSchemaQueryhelpers | TQueryHelpers, DisSchemaVirtuals | TVirtuals, DisSchemaStatics & TStaticMethods>
+      : Schema<DocType, M, TInstanceMethods, TQueryHelpers, TVirtuals, TStaticMethods>;
+
+  type QueryResultType<T> = T extends Query<infer ResultType, any> ? ResultType : never;
+
+  type PluginFunction<
+    DocType,
+    M,
+    TInstanceMethods,
+    TQueryHelpers,
+    TVirtuals,
+    TStaticMethods> = (schema: Schema<DocType, M, TInstanceMethods, TQueryHelpers, TVirtuals, TStaticMethods>, opts?: any) => void;
+
+  export class Schema<
+    RawDocType = any,
+    TModelType = Model<RawDocType, any, any, any>,
+    TInstanceMethods = {},
+    TQueryHelpers = {},
+    TVirtuals = {},
+    TStaticMethods = {},
+    TSchemaOptions = DefaultSchemaOptions,
+    DocType extends ApplySchemaOptions<
+      ObtainDocumentType<DocType, RawDocType, ResolveSchemaOptions<TSchemaOptions>>,
+      ResolveSchemaOptions<TSchemaOptions>
+    > = ApplySchemaOptions<
+      ObtainDocumentType<any, RawDocType, ResolveSchemaOptions<TSchemaOptions>>,
+      ResolveSchemaOptions<TSchemaOptions>
+    >,
+    THydratedDocumentType = HydratedDocument<FlatRecord<DocType>, TVirtuals & TInstanceMethods>
+  >
+    extends events.EventEmitter {
+    /**
+     * Create a new schema
+     */
+    constructor(definition?: SchemaDefinition<SchemaDefinitionType<RawDocType>, RawDocType> | DocType, options?: SchemaOptions<FlatRecord<DocType>, TInstanceMethods, TQueryHelpers, TStaticMethods, TVirtuals, THydratedDocumentType> | ResolveSchemaOptions<TSchemaOptions>);
+
+    /** Adds key path / schema type pairs to this schema. */
+    add(obj: SchemaDefinition<SchemaDefinitionType<RawDocType>> | Schema, prefix?: string): this;
+
+    /**
+     * Add an alias for `path`. This means getting or setting the `alias`
+     * is equivalent to getting or setting the `path`.
+     */
+    alias(path: string, alias: string | string[]): this;
+
+    /**
+     * Array of child schemas (from document arrays and single nested subdocs)
+     * and their corresponding compiled models. Each element of the array is
+     * an object with 2 properties: `schema` and `model`.
+     */
+    childSchemas: { schema: Schema, model: any }[];
+
+    /** Removes all indexes on this schema */
+    clearIndexes(): this;
+
+    /** Returns a copy of this schema */
+    clone<T = this>(): T;
+
+    discriminator<DisSchema = Schema>(name: string | number, schema: DisSchema): this;
+
+    /** Returns a new schema that has the picked `paths` from this schema. */
+    pick<T = this>(paths: string[], options?: SchemaOptions): T;
+
+    /** Object containing discriminators defined on this schema */
+    discriminators?: { [name: string]: Schema };
+
+    /** Iterates the schemas paths similar to Array#forEach. */
+    eachPath(fn: (path: string, type: SchemaType) => void): this;
+
+    /** Defines an index (most likely compound) for this schema. */
+    index(fields: IndexDefinition, options?: Omit<IndexOptions, 'unique'> & { unique?: boolean | [true, string] }): this;
+
+    /**
+     * Define a search index for this schema.
+     *
+     * @remarks Search indexes are only supported when used against a 7.0+ Mongo Atlas cluster.
+     */
+    searchIndex(description: SearchIndexDescription): this;
+
+    /**
+     * Returns a list of indexes that this schema declares, via `schema.index()`
+     * or by `index: true` in a path's options.
+     */
+    indexes(): Array<[IndexDefinition, IndexOptions]>;
+
+    /** Gets a schema option. */
+    get<K extends keyof SchemaOptions>(key: K): SchemaOptions[K];
+
+    /**
+     * Loads an ES6 class into a schema. Maps [setters](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/set) + [getters](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/get), [static methods](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes/static),
+     * and [instance methods](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes#Class_body_and_method_definitions)
+     * to schema [virtuals](http://mongoosejs.com/docs/guide.html#virtuals),
+     * [statics](http://mongoosejs.com/docs/guide.html#statics), and
+     * [methods](http://mongoosejs.com/docs/guide.html#methods).
+     */
+    loadClass(model: Function, onlyVirtuals?: boolean): this;
+
+    /** Adds an instance method to documents constructed from Models compiled from this schema. */
+    method<Context = THydratedDocumentType>(name: string, fn: (this: Context, ...args: any[]) => any, opts?: any): this;
+    method(obj: Partial<TInstanceMethods>): this;
+
+    /** Object of currently defined methods on this schema. */
+    methods: AddThisParameter<TInstanceMethods, THydratedDocumentType> & AnyObject;
+
+    /** The original object passed to the schema constructor */
+    obj: SchemaDefinition<SchemaDefinitionType<RawDocType>, RawDocType>;
+
+    /** Returns a new schema that has the `paths` from the original schema, minus the omitted ones. */
+    omit<T = this>(paths: string[], options?: SchemaOptions): T;
+
+    /** Gets/sets schema paths. */
+    path<ResultType extends SchemaType = SchemaType<any, THydratedDocumentType>>(path: string): ResultType;
+    path<pathGeneric extends keyof RawDocType>(path: pathGeneric): SchemaType<RawDocType[pathGeneric]>;
+    path(path: string, constructor: any): this;
+
+    /** Lists all paths and their type in the schema. */
+    paths: {
+      [key: string]: SchemaType;
+    };
+
+    /** Returns the pathType of `path` for this schema. */
+    pathType(path: string): string;
+
+    /** Registers a plugin for this schema. */
+    plugin<PFunc extends PluginFunction<DocType, TModelType, any, any, any, any>, POptions extends Parameters<PFunc>[1] = Parameters<PFunc>[1]>(fn: PFunc, opts?: POptions): this;
+
+    /** Defines a post hook for the model. */
+
+    // PostMiddlewareFunction
+    // with errorHandler set to true
+    post<T = Query<any, any>>(method: MongooseQueryMiddleware | MongooseQueryMiddleware[] | RegExp, options: SchemaPostOptions & { errorHandler: true }, fn: ErrorHandlingMiddlewareWithOption<T>): this;
+    post<T = THydratedDocumentType>(method: MongooseDocumentMiddleware | MongooseDocumentMiddleware[] | RegExp, options: SchemaPostOptions & { errorHandler: true }, fn: ErrorHandlingMiddlewareWithOption<T>): this;
+    post<T extends Aggregate<any>>(method: 'aggregate' | RegExp, options: SchemaPostOptions & { errorHandler: true }, fn: ErrorHandlingMiddlewareWithOption<T, Array<any>>): this;
+    post<T = TModelType>(method: 'insertMany' | RegExp, options: SchemaPostOptions & { errorHandler: true }, fn: ErrorHandlingMiddlewareWithOption<T>): this;
+
+    // this = never since it never happens
+    post<T = never>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPostOptions & { document: false, query: false }, fn: PostMiddlewareFunction<never, never>): this;
+    post<T = never>(method: MongooseDistinctQueryMiddleware|MongooseDistinctQueryMiddleware[], options: SchemaPostOptions & { document: boolean, query: false }, fn: PostMiddlewareFunction<T, QueryResultType<T>>): this;
+    post<T = never>(method: MongooseDistinctDocumentMiddleware | MongooseDistinctDocumentMiddleware[] | RegExp, options: SchemaPostOptions & { document: false, query: true }, fn: PostMiddlewareFunction<T, T>): this;
+    // this = Document
+    post<T = THydratedDocumentType>(method: MongooseDistinctDocumentMiddleware|MongooseDistinctDocumentMiddleware[], fn: PostMiddlewareFunction<T, T>): this;
+    post<T = THydratedDocumentType>(method: MongooseDistinctDocumentMiddleware|MongooseDistinctDocumentMiddleware[], options: SchemaPostOptions & SchemaPostOptions, fn: PostMiddlewareFunction<T, T>): this;
+    post<T = THydratedDocumentType>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPostOptions & { document: true, query: false }, fn: PostMiddlewareFunction<T, T>): this;
+    // this = Query
+    post<T = Query<any, any>>(method: MongooseRawResultQueryMiddleware|MongooseRawResultQueryMiddleware[], fn: PostMiddlewareFunction<T, null | QueryResultType<T> | ModifyResult<QueryResultType<T>>>): this;
+    post<T = Query<any, any>>(method: MongooseDefaultQueryMiddleware|MongooseDefaultQueryMiddleware[], fn: PostMiddlewareFunction<T, QueryResultType<T>>): this;
+    post<T = Query<any, any>>(method: MongooseDistinctQueryMiddleware|MongooseDistinctQueryMiddleware[], options: SchemaPostOptions, fn: PostMiddlewareFunction<T, QueryResultType<T>>): this;
+    post<T = Query<any, any>>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPostOptions & { document: false, query: true }, fn: PostMiddlewareFunction<T, QueryResultType<T>>): this;
+    // this = Union of Document and Query, could be called with any of them
+    post<T = THydratedDocumentType|Query<any, any>>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPostOptions & { document: true, query: true }, fn: PostMiddlewareFunction<T, T|QueryResultType<T>>): this;
+    post<T = THydratedDocumentType|Query<any, any>>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, fn: PostMiddlewareFunction<T, T|QueryResultType<T>>): this;
+
+    // ErrorHandlingMiddlewareFunction
+    // this = never since it never happens
+    post<T = never>(method: MongooseDistinctQueryMiddleware|MongooseDistinctQueryMiddleware[], options: SchemaPostOptions & { document: boolean, query: false }, fn: ErrorHandlingMiddlewareFunction<T>): this;
+    post<T = never>(method: MongooseDistinctDocumentMiddleware|MongooseDistinctDocumentMiddleware[], options: SchemaPostOptions & { document: false, query: boolean }, fn: ErrorHandlingMiddlewareFunction<T>): this;
+    post<T = never>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPostOptions & { document: false, query: false }, fn: ErrorHandlingMiddlewareFunction<T>): this;
+    // this = Document
+    post<T = THydratedDocumentType>(method: MongooseDistinctDocumentMiddleware|MongooseDistinctDocumentMiddleware[], fn: ErrorHandlingMiddlewareFunction<T>): this;
+    post<T = THydratedDocumentType>(method: MongooseDistinctDocumentMiddleware|MongooseDistinctDocumentMiddleware[], options: SchemaPostOptions, fn: ErrorHandlingMiddlewareFunction<T>): this;
+    post<T = THydratedDocumentType>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPostOptions & { document: true, query: false }, fn: ErrorHandlingMiddlewareFunction<T>): this;
+    // this = Query
+    post<T = Query<any, any>>(method: MongooseDefaultQueryMiddleware|MongooseDefaultQueryMiddleware[], fn: ErrorHandlingMiddlewareFunction<T>): this;
+    post<T = Query<any, any>>(method: MongooseDistinctQueryMiddleware|MongooseDistinctQueryMiddleware[], options: SchemaPostOptions, fn: ErrorHandlingMiddlewareFunction<T>): this;
+    post<T = Query<any, any>>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPostOptions & { document: false, query: true }, fn: ErrorHandlingMiddlewareFunction<T>): this;
+    // this = Union of Document and Query, could be called with any of them
+    post<T = THydratedDocumentType|Query<any, any>>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPostOptions & { document: true, query: true }, fn: ErrorHandlingMiddlewareFunction<T>): this;
+    post<T = THydratedDocumentType|Query<any, any>>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, fn: ErrorHandlingMiddlewareFunction<T>): this;
+
+    // method aggregate and insertMany with PostMiddlewareFunction
+    post<T extends Aggregate<any>>(method: 'aggregate' | RegExp, fn: PostMiddlewareFunction<T, Array<AggregateExtract<T>>>): this;
+    post<T extends Aggregate<any>>(method: 'aggregate' | RegExp, options: SchemaPostOptions, fn: PostMiddlewareFunction<T, Array<AggregateExtract<T>>>): this;
+    post<T = TModelType>(method: 'insertMany' | RegExp, fn: PostMiddlewareFunction<T, T>): this;
+    post<T = TModelType>(method: 'insertMany' | RegExp, options: SchemaPostOptions, fn: PostMiddlewareFunction<T, T>): this;
+
+    // method aggregate and insertMany with ErrorHandlingMiddlewareFunction
+    post<T extends Aggregate<any>>(method: 'aggregate' | RegExp, fn: ErrorHandlingMiddlewareFunction<T, Array<any>>): this;
+    post<T extends Aggregate<any>>(method: 'aggregate' | RegExp, options: SchemaPostOptions, fn: ErrorHandlingMiddlewareFunction<T, Array<any>>): this;
+    post<T = TModelType>(method: 'bulkWrite' | 'createCollection' | 'insertMany' | RegExp, fn: ErrorHandlingMiddlewareFunction<T>): this;
+    post<T = TModelType>(method: 'bulkWrite' | 'createCollection' | 'insertMany' | RegExp, options: SchemaPostOptions, fn: ErrorHandlingMiddlewareFunction<T>): this;
+
+    /** Defines a pre hook for the model. */
+    // this = never since it never happens
+    pre<T = never>(method: 'save', options: SchemaPreOptions & { document: false, query: boolean }, fn: PreSaveMiddlewareFunction<T>): this;
+    pre<T = never>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPreOptions & { document: false, query: false }, fn: PreMiddlewareFunction<T>): this;
+    pre<T = never>(method: MongooseDistinctQueryMiddleware|MongooseDistinctQueryMiddleware[], options: SchemaPreOptions & { document: boolean, query: false }, fn: PreMiddlewareFunction<T>): this;
+    pre<T = never>(method: MongooseDistinctDocumentMiddleware | MongooseDistinctDocumentMiddleware[] | RegExp, options: SchemaPreOptions & { document: false, query: boolean }, fn: PreMiddlewareFunction<T>): this;
+    // this = Union of Document and Query, could be called with any of them
+    pre<T = THydratedDocumentType | Query<any, any>>(
+      method: MongooseQueryAndDocumentMiddleware | MongooseQueryAndDocumentMiddleware[] | RegExp,
+      options: SchemaPreOptions & { document: true, query: true },
+      fn: PreMiddlewareFunction<T>
+    ): this;
+    // this = Document
+    pre<T = THydratedDocumentType>(method: 'save', fn: PreSaveMiddlewareFunction<T>): this;
+    pre<T = THydratedDocumentType>(method: MongooseDistinctDocumentMiddleware|MongooseDistinctDocumentMiddleware[], fn: PreMiddlewareFunction<T>): this;
+    pre<T = THydratedDocumentType>(method: MongooseDistinctDocumentMiddleware|MongooseDistinctDocumentMiddleware[], options: SchemaPreOptions, fn: PreMiddlewareFunction<T>): this;
+    pre<T = THydratedDocumentType>(
+      method: MongooseQueryAndDocumentMiddleware | MongooseQueryAndDocumentMiddleware[] | RegExp,
+      options: SchemaPreOptions & { document: true },
+      fn: PreMiddlewareFunction<T>
+    ): this;
+    pre<T = THydratedDocumentType>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPreOptions & { document: true, query: false }, fn: PreMiddlewareFunction<T>): this;
+    // this = Query
+    pre<T = Query<any, any>>(method: MongooseDefaultQueryMiddleware|MongooseDefaultQueryMiddleware[], fn: PreMiddlewareFunction<T>): this;
+    pre<T = Query<any, any>>(method: MongooseDistinctQueryMiddleware|MongooseDistinctQueryMiddleware[], options: SchemaPreOptions, fn: PreMiddlewareFunction<T>): this;
+    pre<T = Query<any, any>>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPreOptions & { document: false, query: true }, fn: PreMiddlewareFunction<T>): this;
+    // this = Union of Document and Query, could be called with any of them
+    pre<T = THydratedDocumentType|Query<any, any>>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPreOptions & { document: true, query: true }, fn: PreMiddlewareFunction<T>): this;
+    pre<T = THydratedDocumentType|Query<any, any>>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, fn: PreMiddlewareFunction<T>): this;
+    // method aggregate
+    pre<T extends Aggregate<any>>(method: 'aggregate' | RegExp, fn: PreMiddlewareFunction<T>): this;
+    /* method insertMany */
+    pre<T = TModelType>(
+      method: 'insertMany' | RegExp,
+      fn: (
+        this: T,
+        next: (err?: CallbackError) => void,
+        docs: any | Array<any>,
+        options?: InsertManyOptions & { lean?: boolean }
+      ) => void | Promise<void>
+    ): this;
+    /* method bulkWrite */
+    pre<T = TModelType>(
+      method: 'bulkWrite' | RegExp,
+      fn: (
+        this: T,
+        next: (err?: CallbackError) => void,
+        ops: Array<AnyBulkWriteOperation<any>>,
+        options?: mongodb.BulkWriteOptions & MongooseBulkWriteOptions
+      ) => void | Promise<void>
+    ): this;
+    /* method createCollection */
+    pre<T = TModelType>(
+      method: 'createCollection' | RegExp,
+      fn: (
+        this: T,
+        next: (err?: CallbackError) => void,
+        options?: mongodb.CreateCollectionOptions & Pick<SchemaOptions, 'expires'>
+      ) => void | Promise<void>
+    ): this;
+
+    /** Object of currently defined query helpers on this schema. */
+    query: TQueryHelpers;
+
+    /** Adds a method call to the queue. */
+    queue(name: string, args: any[]): this;
+
+    /** Removes the given `path` (or [`paths`]). */
+    remove(paths: string | Array<string>): this;
+
+    /** Removes index by name or index spec */
+    removeIndex(index: string | AnyObject): this;
+
+    /** Returns an Array of path strings that are required by this schema. */
+    requiredPaths(invalidate?: boolean): string[];
+
+    /** Sets a schema option. */
+    set<K extends keyof SchemaOptions>(key: K, value: SchemaOptions[K], _tags?: any): this;
+
+    /** Adds static "class" methods to Models compiled from this schema. */
+    static<K extends keyof TStaticMethods>(name: K, fn: TStaticMethods[K]): this;
+    static(obj: { [F in keyof TStaticMethods]: TStaticMethods[F] } & { [name: string]: (this: TModelType, ...args: any[]) => any }): this;
+    static(name: string, fn: (this: TModelType, ...args: any[]) => any): this;
+
+    /** Object of currently defined statics on this schema. */
+    statics: { [F in keyof TStaticMethods]: TStaticMethods[F] } &
+    { [name: string]: (this: TModelType, ...args: any[]) => unknown };
+
+    /** Creates a virtual type with the given name. */
+    virtual<T = HydratedDocument<DocType, TVirtuals & TInstanceMethods, TQueryHelpers>>(
+      name: keyof TVirtuals | string,
+      options?: VirtualTypeOptions<T, DocType>
+    ): VirtualType<T>;
+
+    /** Object of currently defined virtuals on this schema */
+    virtuals: TVirtuals;
+
+    /** Returns the virtual type with the given `name`. */
+    virtualpath<T = THydratedDocumentType>(name: string): VirtualType<T> | null;
+
+    static ObjectId: typeof Schema.Types.ObjectId;
+  }
+
+  export type NumberSchemaDefinition = typeof Number | 'number' | 'Number' | typeof Schema.Types.Number;
+  export type StringSchemaDefinition = typeof String | 'string' | 'String' | typeof Schema.Types.String;
+  export type BooleanSchemaDefinition = typeof Boolean | 'boolean' | 'Boolean' | typeof Schema.Types.Boolean;
+  export type DateSchemaDefinition = DateConstructor | 'date' | 'Date' | typeof Schema.Types.Date;
+  export type ObjectIdSchemaDefinition = 'ObjectId' | 'ObjectID' | typeof Schema.Types.ObjectId;
+
+  export type SchemaDefinitionWithBuiltInClass<T> = T extends number
+    ? NumberSchemaDefinition
+    : T extends string
+      ? StringSchemaDefinition
+      : T extends boolean
+        ? BooleanSchemaDefinition
+        : T extends NativeDate
+          ? DateSchemaDefinition
+          : (Function | string);
+
+  export type SchemaDefinitionProperty<T = undefined, EnforcedDocType = any> = SchemaDefinitionWithBuiltInClass<T> |
+  SchemaTypeOptions<T extends undefined ? any : T, EnforcedDocType> |
+    typeof SchemaType |
+  Schema<any, any, any> |
+  Schema<any, any, any>[] |
+  SchemaTypeOptions<T extends undefined ? any : Unpacked<T>, EnforcedDocType>[] |
+  Function[] |
+  SchemaDefinition<T, EnforcedDocType> |
+  SchemaDefinition<Unpacked<T>, EnforcedDocType>[] |
+    typeof Schema.Types.Mixed |
+  MixedSchemaTypeOptions<EnforcedDocType>;
+
+  export type SchemaDefinition<T = undefined, EnforcedDocType = any> = T extends undefined
+    ? { [path: string]: SchemaDefinitionProperty; }
+    : { [path in keyof T]?: SchemaDefinitionProperty<T[path], EnforcedDocType>; };
+
+  export type AnyArray<T> = T[] | ReadonlyArray<T>;
+  export type ExtractMongooseArray<T> = T extends Types.Array<any> ? AnyArray<Unpacked<T>> : T;
+
+  export interface MixedSchemaTypeOptions<EnforcedDocType> extends SchemaTypeOptions<Schema.Types.Mixed, EnforcedDocType> {
+    type: typeof Schema.Types.Mixed;
+  }
+
+  export type RefType =
+    | number
+    | string
+    | Buffer
+    | undefined
+    | Types.ObjectId
+    | Types.Buffer
+    | typeof Schema.Types.Number
+    | typeof Schema.Types.String
+    | typeof Schema.Types.Buffer
+    | typeof Schema.Types.ObjectId
+    | typeof Schema.Types.UUID;
+
+
+  export type InferId<T> = T extends { _id?: any } ? T['_id'] : Types.ObjectId;
+
+  export interface VirtualTypeOptions<HydratedDocType = Document, DocType = unknown> {
+    /** If `ref` is not nullish, this becomes a populated virtual. */
+    ref?: string | Function;
+
+    /** The local field to populate on if this is a populated virtual. */
+    localField?: string | ((this: HydratedDocType, doc: HydratedDocType) => string);
+
+    /** The foreign field to populate on if this is a populated virtual. */
+    foreignField?: string | ((this: HydratedDocType, doc: HydratedDocType) => string);
+
+    /**
+     * By default, a populated virtual is an array. If you set `justOne`,
+     * the populated virtual will be a single doc or `null`.
+     */
+    justOne?: boolean;
+
+    /** If you set this to `true`, Mongoose will call any custom getters you defined on this virtual. */
+    getters?: boolean;
+
+    /**
+     * If you set this to `true`, `populate()` will set this virtual to the number of populated
+     * documents, as opposed to the documents themselves, using `Query#countDocuments()`.
+     */
+    count?: boolean;
+
+    /** Add an extra match condition to `populate()`. */
+    match?: FilterQuery<any> | ((doc: Record<string, any>, virtual?: this) => Record<string, any> | null);
+
+    /** Add a default `limit` to the `populate()` query. */
+    limit?: number;
+
+    /** Add a default `skip` to the `populate()` query. */
+    skip?: number;
+
+    /**
+     * For legacy reasons, `limit` with `populate()` may give incorrect results because it only
+     * executes a single query for every document being populated. If you set `perDocumentLimit`,
+     * Mongoose will ensure correct `limit` per document by executing a separate query for each
+     * document to `populate()`. For example, `.find().populate({ path: 'test', perDocumentLimit: 2 })`
+     * will execute 2 additional queries if `.find()` returns 2 documents.
+     */
+    perDocumentLimit?: number;
+
+    /** Additional options like `limit` and `lean`. */
+    options?: QueryOptions<DocType> & { match?: AnyObject };
+
+    /** If true and the given `name` is a direct child of an array, apply the virtual to the array rather than the elements. */
+    applyToArray?: boolean;
+
+    /** Additional options for plugins */
+    [extra: string]: any;
+  }
+
+  export class VirtualType<HydratedDocType> {
+    /** Applies getters to `value`. */
+    applyGetters(value: any, doc: Document): any;
+
+    /** Applies setters to `value`. */
+    applySetters(value: any, doc: Document): any;
+
+    /** Adds a custom getter to this virtual. */
+    get<T = HydratedDocType>(fn: (this: T, value: any, virtualType: VirtualType<T>, doc: T) => any): this;
+
+    /** Adds a custom setter to this virtual. */
+    set<T = HydratedDocType>(fn: (this: T, value: any, virtualType: VirtualType<T>, doc: T) => void): this;
+  }
+
+  export type ReturnsNewDoc = { new: true } | { returnOriginal: false } | { returnDocument: 'after' };
+
+  export type ProjectionElementType = number | string;
+  export type ProjectionType<T> = { [P in keyof T]?: ProjectionElementType } | AnyObject | string;
+
+  export type SortValues = SortOrder;
+
+  export type SortOrder = -1 | 1 | 'asc' | 'ascending' | 'desc' | 'descending';
+
+  type _UpdateQuery<TSchema, AdditionalProperties = AnyObject> = {
+    /** @see https://www.mongodb.com/docs/manual/reference/operator/update-field/ */
+    $currentDate?: AnyKeys<TSchema> & AdditionalProperties;
+    $inc?: AnyKeys<TSchema> & AdditionalProperties;
+    $min?: AnyKeys<TSchema> & AdditionalProperties;
+    $max?: AnyKeys<TSchema> & AdditionalProperties;
+    $mul?: AnyKeys<TSchema> & AdditionalProperties;
+    $rename?: Record<string, string>;
+    $set?: AnyKeys<TSchema> & AdditionalProperties;
+    $setOnInsert?: AnyKeys<TSchema> & AdditionalProperties;
+    $unset?: AnyKeys<TSchema> & AdditionalProperties;
+
+    /** @see https://www.mongodb.com/docs/manual/reference/operator/update-array/ */
+    $addToSet?: AnyKeys<TSchema> & AdditionalProperties;
+    $pop?: AnyKeys<TSchema> & AdditionalProperties;
+    $pull?: AnyKeys<TSchema> & AdditionalProperties;
+    $push?: AnyKeys<TSchema> & AdditionalProperties;
+    $pullAll?: AnyKeys<TSchema> & AdditionalProperties;
+
+    /** @see https://www.mongodb.com/docs/manual/reference/operator/update-bitwise/ */
+    $bit?: AnyKeys<TSchema>;
+  };
+
+  export type UpdateWithAggregationPipeline = UpdateAggregationStage[];
+  export type UpdateAggregationStage = { $addFields: any } |
+  { $set: any } |
+  { $project: any } |
+  { $unset: any } |
+  { $replaceRoot: any } |
+  { $replaceWith: any };
+
+  /**
+   * Update query command to perform on the document
+   * @example
+   * ```js
+   * { age: 30 }
+   * ```
+   */
+  export type UpdateQuery<T> = AnyKeys<T> & _UpdateQuery<T> & AnyObject;
+
+  /**
+   * A more strict form of UpdateQuery that enforces updating only
+   * known top-level properties.
+   * @example
+   * ```ts
+   * function updateUser(_id: mongoose.Types.ObjectId, update: UpdateQueryKnownOnly<IUser>) {
+   *   return User.updateOne({ _id }, update);
+   * }
+   * ```
+   */
+  export type UpdateQueryKnownOnly<T> = _UpdateQuery<T, {}>;
+
+  export type FlattenMaps<T> = {
+    [K in keyof T]: FlattenProperty<T[K]>;
+  };
+
+  export type BufferToBinaryProperty<T> = T extends Buffer
+    ? mongodb.Binary
+    : T extends Types.DocumentArray<infer ItemType>
+      ? Types.DocumentArray<BufferToBinary<ItemType>>
+      : T extends Types.Subdocument<unknown, unknown, infer SubdocType>
+        ? HydratedSingleSubdocument<BufferToBinary<SubdocType>>
+        : BufferToBinary<T>;
+
+  /**
+   * Converts any Buffer properties into mongodb.Binary instances, which is what `lean()` returns
+   */
+  export type BufferToBinary<T> = T extends Buffer
+    ? mongodb.Binary
+    : T extends Document
+      ? T
+      : T extends TreatAsPrimitives
+        ? T
+        : T extends Record<string, any>
+          ? {
+              [K in keyof T]: BufferToBinaryProperty<T[K]>
+            }
+          : T;
+
+  /**
+   * Converts any Buffer properties into { type: 'buffer', data: [1, 2, 3] } format for JSON serialization
+   */
+  export type BufferToJSON<T> = T extends Buffer
+    ? { type: 'buffer', data: number[] }
+    : T extends Document
+      ? T
+      : T extends TreatAsPrimitives
+        ? T
+        : T extends Record<string, any> ? {
+          [K in keyof T]: T[K] extends Buffer
+            ? { type: 'buffer', data: number[] }
+            : T[K] extends Types.DocumentArray<infer ItemType>
+                ? Types.DocumentArray<BufferToBinary<ItemType>>
+                : T[K] extends Types.Subdocument<unknown, unknown, infer SubdocType>
+                  ? HydratedSingleSubdocument<SubdocType>
+                  : BufferToBinary<T[K]>;
+        } : T;
+
+  /**
+   * Converts any ObjectId properties into strings for JSON serialization
+   */
+  export type ObjectIdToString<T> = T extends mongodb.ObjectId
+    ? string
+    : T extends Document
+      ? T
+      : T extends TreatAsPrimitives
+        ? T
+        : T extends Record<string, any> ? {
+          [K in keyof T]: T[K] extends mongodb.ObjectId
+            ? string
+            : T[K] extends Types.DocumentArray<infer ItemType>
+                ? Types.DocumentArray<ObjectIdToString<ItemType>>
+                : T[K] extends Types.Subdocument<unknown, unknown, infer SubdocType>
+                  ? HydratedSingleSubdocument<ObjectIdToString<SubdocType>>
+                  : ObjectIdToString<T[K]>;
+        } : T;
+
+  /**
+   * Converts any Date properties into strings for JSON serialization
+   */
+  export type DateToString<T> = T extends NativeDate
+    ? string
+    : T extends Document
+      ? T
+        : T extends TreatAsPrimitives
+        ? T
+        : T extends Record<string, any> ? {
+          [K in keyof T]: T[K] extends NativeDate
+            ? string
+            : T[K] extends (NativeDate | null | undefined)
+              ? string | null | undefined
+              : T[K] extends Types.DocumentArray<infer ItemType>
+                  ? Types.DocumentArray<DateToString<ItemType>>
+                  : T[K] extends Types.Subdocument<unknown, unknown, infer SubdocType>
+                    ? HydratedSingleSubdocument<DateToString<SubdocType>>
+                    : DateToString<T[K]>;
+        } : T;
+
+  /**
+   * Converts any Mongoose subdocuments (single nested or doc arrays) into POJO equivalents
+   */
+  export type SubdocsToPOJOs<T> = T extends Document
+    ? T
+    : T extends TreatAsPrimitives
+      ? T
+      : T extends Record<string, any> ? {
+        [K in keyof T]: T[K] extends Types.DocumentArray<infer ItemType>
+          ? ItemType[]
+          : T[K] extends Types.Subdocument<unknown, unknown, infer SubdocType>
+            ? SubdocType
+            : SubdocsToPOJOs<T[K]>;
+      } : T;
+
+  export type JSONSerialized<T> = SubdocsToPOJOs<
+    FlattenMaps<
+      BufferToJSON<
+        ObjectIdToString<
+          DateToString<T>
+        >
+      >
+    >
+  >;
+
+  /**
+   * Separate type is needed for properties of union type (for example, Types.DocumentArray | undefined) to apply conditional check to each member of it
+   * https://www.typescriptlang.org/docs/handbook/2/conditional-types.html#distributive-conditional-types
+   */
+  type FlattenProperty<T> = T extends Map<any, infer V>
+    ? Record<string, V> : T extends TreatAsPrimitives
+      ? T : T extends Types.DocumentArray<infer ItemType>
+        ? Types.DocumentArray<FlattenMaps<ItemType>> : FlattenMaps<T>;
+
+  export type actualPrimitives = string | boolean | number | bigint | symbol | null | undefined;
+  export type TreatAsPrimitives = actualPrimitives | NativeDate | RegExp | symbol | Error | BigInt | Types.ObjectId | Buffer | Function | mongodb.Binary;
+
+  export type SchemaDefinitionType<T> = T extends Document ? Omit<T, Exclude<keyof Document, '_id' | 'id' | '__v'>> : T;
+
+  /**
+   * Helper to choose the best option between two type helpers
+   */
+  export type _pickObject<T1, T2, Fallback> = T1 extends false ? T2 extends false ? Fallback : T2 : T1;
+
+  /* for ts-mongoose */
+  export class mquery { }
+
+  export function overwriteMiddlewareResult(val: any): Kareem.OverwriteMiddlewareResult;
+
+  export function skipMiddlewareFunction(val: any): Kareem.SkipWrappedFunction;
+
+  export default mongoose;
+}
diff --git a/backend/node_modules/mongoose/types/indexes.d.ts b/backend/node_modules/mongoose/types/indexes.d.ts
new file mode 100644
index 0000000..884e41c
--- /dev/null
+++ b/backend/node_modules/mongoose/types/indexes.d.ts
@@ -0,0 +1,97 @@
+declare module 'mongoose' {
+  import mongodb = require('mongodb');
+
+  /**
+   * Makes the indexes in MongoDB match the indexes defined in every model's
+   * schema. This function will drop any indexes that are not defined in
+   * the model's schema except the `_id` index, and build any indexes that
+   * are in your schema but not in MongoDB.
+   */
+  function syncIndexes(options?: SyncIndexesOptions): Promise<ConnectionSyncIndexesResult>;
+
+  interface IndexManager {
+    /* Deletes all indexes that aren't defined in this model's schema. Used by `syncIndexes()`. Returns list of dropped index names. */
+    cleanIndexes(options?: { toDrop?: string[], hideIndexes?: boolean }): Promise<string[]>;
+
+    /**
+     * Similar to `ensureIndexes()`, except for it uses the [`createIndex`](https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#createIndex)
+     * function.
+     */
+    createIndexes(options?: mongodb.CreateIndexesOptions): Promise<void>;
+
+    /**
+     * Does a dry-run of Model.syncIndexes(), meaning that
+     * the result of this function would be the result of
+     * Model.syncIndexes().
+     */
+    diffIndexes(options?: Record<string, unknown>): Promise<IndexesDiff>
+
+    /**
+     * Sends `createIndex` commands to mongo for each index declared in the schema.
+     * The `createIndex` commands are sent in series.
+     */
+    ensureIndexes(options?: mongodb.CreateIndexesOptions): Promise<void>;
+
+    /**
+     * Lists the indexes currently defined in MongoDB. This may or may not be
+     * the same as the indexes defined in your schema depending on whether you
+     * use the [`autoIndex` option](/docs/guide.html#autoIndex) and if you
+     * build indexes manually.
+     */
+    listIndexes(): Promise<Array<any>>;
+
+    /**
+     * Makes the indexes in MongoDB match the indexes defined in this model's
+     * schema. This function will drop any indexes that are not defined in
+     * the model's schema except the `_id` index, and build any indexes that
+     * are in your schema but not in MongoDB.
+     */
+    syncIndexes(options?: SyncIndexesOptions): Promise<Array<string>>;
+  }
+
+  interface IndexesDiff {
+    /** Indexes that would be created in mongodb. */
+    toCreate: Array<any>
+    /** Indexes that would be dropped in mongodb. */
+    toDrop: Array<any>
+  }
+
+  type IndexDirection = 1 | -1 | '2d' | '2dsphere' | 'geoHaystack' | 'hashed' | 'text' | 'ascending' | 'asc' | 'descending' | 'desc';
+  type IndexDefinition = Record<string, IndexDirection>;
+
+  interface SyncIndexesOptions extends mongodb.CreateIndexesOptions {
+    continueOnError?: boolean;
+    hideIndexes?: boolean;
+  }
+  type ConnectionSyncIndexesResult = Record<string, OneCollectionSyncIndexesResult>;
+  type OneCollectionSyncIndexesResult = Array<string> & mongodb.MongoServerError;
+
+  type IndexOptions = Omit<mongodb.CreateIndexesOptions, 'expires' | 'weights' | 'unique'> & {
+    /**
+     * `expires` utilizes the `ms` module from [guille](https://github.com/guille/) allowing us to use a friendlier syntax:
+     *
+     * @example
+     * ```js
+     * const schema = new Schema({ prop1: Date });
+     *
+     * // expire in 24 hours
+     * schema.index({ prop1: 1 }, { expires: 60*60*24 })
+     *
+     * // expire in 24 hours
+     * schema.index({ prop1: 1 }, { expires: '24h' })
+     *
+     * // expire in 1.5 hours
+     * schema.index({ prop1: 1 }, { expires: '1.5h' })
+     *
+     * // expire in 7 days
+     * schema.index({ prop1: 1 }, { expires: '7d' })
+     * ```
+     */
+    expires?: number | string;
+    weights?: Record<string, number>;
+
+    unique?: boolean | [true, string]
+  };
+
+  type SearchIndexDescription = mongodb.SearchIndexDescription;
+}
diff --git a/backend/node_modules/mongoose/types/inferrawdoctype.d.ts b/backend/node_modules/mongoose/types/inferrawdoctype.d.ts
new file mode 100644
index 0000000..6055710
--- /dev/null
+++ b/backend/node_modules/mongoose/types/inferrawdoctype.d.ts
@@ -0,0 +1,119 @@
+import {
+  IsPathRequired,
+  IsSchemaTypeFromBuiltinClass,
+  RequiredPaths,
+  OptionalPaths,
+  PathWithTypePropertyBaseType,
+  PathEnumOrString
+} from './inferschematype';
+
+declare module 'mongoose' {
+  export type InferRawDocType<
+    DocDefinition,
+    TSchemaOptions extends Record<any, any> = DefaultSchemaOptions
+  > = ApplySchemaOptions<{
+    [
+    K in keyof (RequiredPaths<DocDefinition, TSchemaOptions['typeKey']> &
+    OptionalPaths<DocDefinition, TSchemaOptions['typeKey']>)
+    ]: IsPathRequired<DocDefinition[K], TSchemaOptions['typeKey']> extends true
+      ? ObtainRawDocumentPathType<DocDefinition[K], TSchemaOptions['typeKey']>
+      : ObtainRawDocumentPathType<DocDefinition[K], TSchemaOptions['typeKey']> | null;
+  }, TSchemaOptions>;
+
+  /**
+   * @summary Obtains schema Path type.
+   * @description Obtains Path type by separating path type from other options and calling {@link ResolvePathType}
+   * @param {PathValueType} PathValueType Document definition path type.
+   * @param {TypeKey} TypeKey A generic refers to document definition.
+   */
+  type ObtainRawDocumentPathType<
+    PathValueType,
+    TypeKey extends string = DefaultTypeKey
+  > = ResolveRawPathType<
+    PathValueType extends PathWithTypePropertyBaseType<TypeKey> ? PathValueType[TypeKey] : PathValueType,
+    PathValueType extends PathWithTypePropertyBaseType<TypeKey> ? Omit<PathValueType, TypeKey> : {},
+    TypeKey
+  >;
+
+  /**
+   * Same as inferSchemaType, except:
+   *
+   * 1. Replace `Types.DocumentArray` and `Types.Array` with vanilla `Array`
+   * 2. Replace `ObtainDocumentPathType` with `ObtainRawDocumentPathType`
+   * 3. Replace `ResolvePathType` with `ResolveRawPathType`
+   *
+   * @summary Resolve path type by returning the corresponding type.
+   * @param {PathValueType} PathValueType Document definition path type.
+   * @param {Options} Options Document definition path options except path type.
+   * @param {TypeKey} TypeKey A generic of literal string type."Refers to the property used for path type definition".
+   * @returns Number, "Number" or "number" will be resolved to number type.
+   */
+  type ResolveRawPathType<PathValueType, Options extends SchemaTypeOptions<PathValueType> = {}, TypeKey extends string = DefaultSchemaOptions['typeKey']> =
+  PathValueType extends Schema ?
+    InferSchemaType<PathValueType> :
+    PathValueType extends (infer Item)[] ?
+      IfEquals<Item, never, any[], Item extends Schema ?
+        // If Item is a schema, infer its type.
+        Array<InferSchemaType<Item>> :
+        Item extends Record<TypeKey, any> ?
+          Item[TypeKey] extends Function | String ?
+            // If Item has a type key that's a string or a callable, it must be a scalar,
+            // so we can directly obtain its path type.
+            ObtainRawDocumentPathType<Item, TypeKey>[] :
+            // If the type key isn't callable, then this is an array of objects, in which case
+            // we need to call ObtainDocumentType to correctly infer its type.
+            Array<ObtainDocumentType<Item, any, { typeKey: TypeKey }>> :
+          IsSchemaTypeFromBuiltinClass<Item> extends true ?
+            ObtainRawDocumentPathType<Item, TypeKey>[] :
+            IsItRecordAndNotAny<Item> extends true ?
+              Item extends Record<string, never> ?
+                ObtainRawDocumentPathType<Item, TypeKey>[] :
+                Array<ObtainDocumentType<Item, any, { typeKey: TypeKey }>> :
+              ObtainRawDocumentPathType<Item, TypeKey>[]
+      >:
+      PathValueType extends ReadonlyArray<infer Item> ?
+        IfEquals<Item, never, any[], Item extends Schema ?
+          Array<InferSchemaType<Item>> :
+          Item extends Record<TypeKey, any> ?
+            Item[TypeKey] extends Function | String ?
+              ObtainRawDocumentPathType<Item, TypeKey>[] :
+              ObtainDocumentType<Item, any, { typeKey: TypeKey }>[]:
+            IsSchemaTypeFromBuiltinClass<Item> extends true ?
+              ObtainRawDocumentPathType<Item, TypeKey>[] :
+              IsItRecordAndNotAny<Item> extends true ?
+                Item extends Record<string, never> ?
+                  ObtainRawDocumentPathType<Item, TypeKey>[] :
+                  Array<ObtainDocumentType<Item, any, { typeKey: TypeKey }>> :
+                ObtainRawDocumentPathType<Item, TypeKey>[]
+        >:
+        PathValueType extends StringSchemaDefinition ? PathEnumOrString<Options['enum']> :
+          IfEquals<PathValueType, Schema.Types.String> extends true ? PathEnumOrString<Options['enum']> :
+            IfEquals<PathValueType, String> extends true ? PathEnumOrString<Options['enum']> :
+              PathValueType extends NumberSchemaDefinition ? Options['enum'] extends ReadonlyArray<any> ? Options['enum'][number] : number :
+                IfEquals<PathValueType, Schema.Types.Number> extends true ? number :
+                  PathValueType extends DateSchemaDefinition ? NativeDate :
+                    IfEquals<PathValueType, Schema.Types.Date> extends true ? NativeDate :
+                      PathValueType extends typeof Buffer | 'buffer' | 'Buffer' | typeof Schema.Types.Buffer ? Buffer :
+                        PathValueType extends BooleanSchemaDefinition ? boolean :
+                          IfEquals<PathValueType, Schema.Types.Boolean> extends true ? boolean :
+                            PathValueType extends ObjectIdSchemaDefinition ? Types.ObjectId :
+                              IfEquals<PathValueType, Types.ObjectId> extends true ? Types.ObjectId :
+                                IfEquals<PathValueType, Schema.Types.ObjectId> extends true ? Types.ObjectId :
+                                  PathValueType extends 'decimal128' | 'Decimal128' | typeof Schema.Types.Decimal128 ? Types.Decimal128 :
+                                    IfEquals<PathValueType, Schema.Types.Decimal128> extends true ? Types.Decimal128 :
+                                      IfEquals<PathValueType, Types.Decimal128> extends true ? Types.Decimal128 :
+                                        IfEquals<PathValueType, Schema.Types.BigInt> extends true ? bigint :
+                                          IfEquals<PathValueType, BigInt> extends true ? bigint :
+                                            PathValueType extends 'bigint' | 'BigInt' | typeof Schema.Types.BigInt | typeof BigInt ? bigint :
+                                              PathValueType extends 'uuid' | 'UUID' | typeof Schema.Types.UUID ? Buffer :
+                                                IfEquals<PathValueType, Schema.Types.UUID> extends true ? Buffer :
+                                                  PathValueType extends MapConstructor | 'Map' ? Map<string, ResolveRawPathType<Options['of']>> :
+                                                    IfEquals<PathValueType, typeof Schema.Types.Map> extends true ? Map<string, ResolveRawPathType<Options['of']>> :
+                                                      PathValueType extends ArrayConstructor ? any[] :
+                                                        PathValueType extends typeof Schema.Types.Mixed ? any:
+                                                          IfEquals<PathValueType, ObjectConstructor> extends true ? any:
+                                                            IfEquals<PathValueType, {}> extends true ? any:
+                                                              PathValueType extends typeof SchemaType ? PathValueType['prototype'] :
+                                                                PathValueType extends Record<string, any> ? ObtainDocumentType<PathValueType, any, { typeKey: TypeKey }> :
+                                                                  unknown;
+}
diff --git a/backend/node_modules/mongoose/types/inferschematype.d.ts b/backend/node_modules/mongoose/types/inferschematype.d.ts
new file mode 100644
index 0000000..38f8da1
--- /dev/null
+++ b/backend/node_modules/mongoose/types/inferschematype.d.ts
@@ -0,0 +1,321 @@
+import {
+  Schema,
+  InferSchemaType,
+  SchemaType,
+  SchemaTypeOptions,
+  TypeKeyBaseType,
+  Types,
+  NumberSchemaDefinition,
+  StringSchemaDefinition,
+  BooleanSchemaDefinition,
+  DateSchemaDefinition,
+  ObtainDocumentType,
+  DefaultTypeKey,
+  ObjectIdSchemaDefinition,
+  IfEquals,
+  DefaultSchemaOptions,
+  IsItRecordAndNotAny
+} from 'mongoose';
+
+declare module 'mongoose' {
+  /**
+   * @summary Obtains document schema type.
+   * @description Obtains document schema type from document Definition OR returns enforced schema type if it's provided.
+   * @param {DocDefinition} DocDefinition A generic equals to the type of document definition "provided in as first parameter in Schema constructor".
+   * @param {EnforcedDocType} EnforcedDocType A generic type enforced by user "provided before schema constructor".
+   * @param {TypeKey} TypeKey A generic of literal string type."Refers to the property used for path type definition".
+   */
+  type ObtainDocumentType<
+    DocDefinition,
+    EnforcedDocType = any,
+    TSchemaOptions extends Record<any, any> = DefaultSchemaOptions
+  > = IsItRecordAndNotAny<EnforcedDocType> extends true ?
+    EnforcedDocType :
+    {
+      [
+      K in keyof (RequiredPaths<DocDefinition, TSchemaOptions['typeKey']> &
+      OptionalPaths<DocDefinition, TSchemaOptions['typeKey']>)
+      ]: IsPathRequired<DocDefinition[K], TSchemaOptions['typeKey']> extends true ?
+        ObtainDocumentPathType<DocDefinition[K], TSchemaOptions['typeKey']> :
+        ObtainDocumentPathType<DocDefinition[K], TSchemaOptions['typeKey']> | null;
+    };
+
+  /**
+   * @summary Obtains document schema type from Schema instance.
+   * @param {Schema} TSchema `typeof` a schema instance.
+   * @example
+   * const userSchema = new Schema({userName:String});
+   * type UserType = InferSchemaType<typeof userSchema>;
+   * // result
+   * type UserType = {userName?: string}
+   */
+  export type InferSchemaType<TSchema> = IfAny<TSchema, any, ObtainSchemaGeneric<TSchema, 'DocType'>>;
+
+  /**
+   * @summary Obtains schema Generic type by using generic alias.
+   * @param {TSchema} TSchema A generic of schema type instance.
+   * @param {alias} alias Targeted generic alias.
+   */
+  type ObtainSchemaGeneric<TSchema, alias extends 'EnforcedDocType' | 'M' | 'TInstanceMethods' | 'TQueryHelpers' | 'TVirtuals' | 'TStaticMethods' | 'TSchemaOptions' | 'DocType'> =
+   TSchema extends Schema<infer EnforcedDocType, infer M, infer TInstanceMethods, infer TQueryHelpers, infer TVirtuals, infer TStaticMethods, infer TSchemaOptions, infer DocType>
+     ? {
+       EnforcedDocType: EnforcedDocType;
+       M: M;
+       TInstanceMethods: TInstanceMethods;
+       TQueryHelpers: TQueryHelpers;
+       TVirtuals: TVirtuals;
+       TStaticMethods: TStaticMethods;
+       TSchemaOptions: TSchemaOptions;
+       DocType: DocType;
+     }[alias]
+     : unknown;
+
+  type ResolveSchemaOptions<T> = MergeType<DefaultSchemaOptions, T>;
+
+  type ApplySchemaOptions<T, O = DefaultSchemaOptions> = ResolveTimestamps<T, O>;
+
+  type ResolveTimestamps<T, O> = O extends { methods: any } | { statics: any } | { virtuals: any } | { timestamps?: false } ? T
+    // For some reason, TypeScript sets all the document properties to unknown
+    // if we use methods, statics, or virtuals. So avoid inferring timestamps
+    // if any of these are set for now. See gh-12807
+    : O extends { timestamps: infer TimestampOptions } ? TimestampOptions extends true
+      ? { createdAt: NativeDate; updatedAt: NativeDate; } & T
+      : TimestampOptions extends SchemaTimestampsConfig
+        ? {
+          -readonly [K in keyof Pick<
+            TimestampOptions,
+            'createdAt' | 'updatedAt'
+          > as TimestampOptions[K] extends true
+            ? K
+            : TimestampOptions[K] extends `${infer TimestampValue}`
+              ? TimestampValue
+              : never]: NativeDate;
+        } & T
+        : T
+      : T;
+}
+
+type IsPathDefaultUndefined<PathType> = PathType extends { default: undefined } ?
+  true :
+  PathType extends { default: (...args: any[]) => undefined } ?
+    true :
+    false;
+
+/**
+ * @summary Checks if a document path is required or optional.
+ * @param {P} P Document path.
+ * @param {TypeKey} TypeKey A generic of literal string type."Refers to the property used for path type definition".
+ */
+type IsPathRequired<P, TypeKey extends string = DefaultTypeKey> =
+  P extends { required: true | [true, string | undefined] | { isRequired: true } } | ArrayConstructor | any[]
+    ? true
+    : P extends { required: boolean }
+      ? P extends { required: false }
+        ? false
+        : true
+      : P extends (Record<TypeKey, ArrayConstructor | any[]>)
+        ? IsPathDefaultUndefined<P> extends true
+          ? false
+          : true
+        : P extends (Record<TypeKey, any>)
+          ? P extends { default: any }
+            ? IfEquals<P['default'], undefined, false, true>
+            : false
+          : false;
+
+/**
+ * @summary Path base type defined by using TypeKey
+ * @description It helps to check if a path is defined by TypeKey OR not.
+ * @param {TypeKey} TypeKey A literal string refers to path type property key.
+ */
+type PathWithTypePropertyBaseType<TypeKey extends string = DefaultTypeKey> = { [k in TypeKey]: any };
+
+/**
+ * @summary A Utility to obtain schema's required path keys.
+ * @param {T} T A generic refers to document definition.
+ * @param {TypeKey} TypeKey A generic of literal string type."Refers to the property used for path type definition".
+ * @returns required paths keys of document definition.
+ */
+type RequiredPathKeys<T, TypeKey extends string = DefaultTypeKey> = {
+  [K in keyof T]: IsPathRequired<T[K], TypeKey> extends true ? IfEquals<T[K], any, never, K> : never;
+}[keyof T];
+
+/**
+ * @summary A Utility to obtain schema's required paths.
+ * @param {T} T A generic refers to document definition.
+ * @param {TypeKey} TypeKey A generic of literal string type."Refers to the property used for path type definition".
+ * @returns a record contains required paths with the corresponding type.
+ */
+type RequiredPaths<T, TypeKey extends string = DefaultTypeKey> = Pick<
+  { -readonly [K in keyof T]: T[K] },
+  RequiredPathKeys<T, TypeKey>
+>;
+
+/**
+ * @summary A Utility to obtain schema's optional path keys.
+ * @param {T} T A generic refers to document definition.
+ * @param {TypeKey} TypeKey A generic of literal string type."Refers to the property used for path type definition".
+ * @returns optional paths keys of document definition.
+ */
+type OptionalPathKeys<T, TypeKey extends string = DefaultTypeKey> = {
+  [K in keyof T]: IsPathRequired<T[K], TypeKey> extends true ? never : K;
+}[keyof T];
+
+/**
+ * @summary A Utility to obtain schema's optional paths.
+ * @param {T} T A generic refers to document definition.
+ * @param {TypeKey} TypeKey A generic of literal string type."Refers to the property used for path type definition".
+ * @returns a record contains optional paths with the corresponding type.
+ */
+type OptionalPaths<T, TypeKey extends string = DefaultTypeKey> = Pick<
+  { -readonly [K in keyof T]?: T[K] },
+  OptionalPathKeys<T, TypeKey>
+>;
+
+/**
+ * @summary Allows users to optionally choose their own type for a schema field for stronger typing.
+ */
+type TypeHint<T> = T extends { __typehint: infer U } ? U: never;
+
+
+/**
+ * @summary Obtains schema Path type.
+ * @description Obtains Path type by separating path type from other options and calling {@link ResolvePathType}
+ * @param {PathValueType} PathValueType Document definition path type.
+ * @param {TypeKey} TypeKey A generic refers to document definition.
+ */
+type ObtainDocumentPathType<PathValueType, TypeKey extends string = DefaultTypeKey> = ResolvePathType<
+  PathValueType extends PathWithTypePropertyBaseType<TypeKey>
+    ? PathValueType[TypeKey] extends PathWithTypePropertyBaseType<TypeKey>
+      ? PathValueType
+      : PathValueType[TypeKey]
+    : PathValueType,
+  PathValueType extends PathWithTypePropertyBaseType<TypeKey>
+    ? PathValueType[TypeKey] extends PathWithTypePropertyBaseType<TypeKey>
+      ? {}
+      : Omit<PathValueType, TypeKey>
+    : {},
+TypeKey,
+TypeHint<PathValueType>
+>;
+
+/**
+ * @param {T} T A generic refers to string path enums.
+ * @returns Path enum values type as literal strings or string.
+ */
+type PathEnumOrString<T extends SchemaTypeOptions<string>['enum']> = T extends ReadonlyArray<infer E> ? E : T extends { values: any } ? PathEnumOrString<T['values']> : string;
+
+type IsSchemaTypeFromBuiltinClass<T> = T extends (typeof String)
+  ? true
+  : T extends (typeof Number)
+    ? true
+    : T extends (typeof Boolean)
+      ? true
+      : T extends (typeof Buffer)
+        ? true
+        : T extends (typeof Schema.Types.ObjectId)
+          ? true
+          : T extends (typeof Schema.Types.UUID)
+            ? true
+            : T extends (typeof Schema.Types.Decimal128)
+              ? true
+              : T extends (typeof Schema.Types.Int32)
+                ? true
+                  : T extends (typeof Schema.Types.String)
+                    ? true
+                    : T extends (typeof Schema.Types.Number)
+                      ? true
+                      : T extends (typeof Schema.Types.Date)
+                        ? true
+                        : T extends (typeof Schema.Types.Double)
+                          ? true
+                          : T extends (typeof Schema.Types.Boolean)
+                            ? true
+                            : T extends Types.ObjectId
+                              ? true
+                              : T extends Types.Decimal128
+                                ? true
+                                : T extends Buffer
+                                  ? true
+                                  : T extends NativeDate
+                                    ? true
+                                    : T extends (typeof Schema.Types.Mixed)
+                                      ? true
+                                      : IfEquals<T, Schema.Types.ObjectId, true, false>;
+
+/**
+ * @summary Resolve path type by returning the corresponding type.
+ * @param {PathValueType} PathValueType Document definition path type.
+ * @param {Options} Options Document definition path options except path type.
+ * @param {TypeKey} TypeKey A generic of literal string type."Refers to the property used for path type definition".
+ * @returns Number, "Number" or "number" will be resolved to number type.
+ */
+type ResolvePathType<PathValueType, Options extends SchemaTypeOptions<PathValueType> = {}, TypeKey extends string = DefaultSchemaOptions['typeKey'], TypeHint = never> =
+  IfEquals<TypeHint, never,
+    PathValueType extends Schema ? InferSchemaType<PathValueType> :
+      PathValueType extends (infer Item)[] ?
+        IfEquals<Item, never, any[], Item extends Schema ?
+          // If Item is a schema, infer its type.
+          Types.DocumentArray<InferSchemaType<Item>> :
+          Item extends Record<TypeKey, any> ?
+            Item[TypeKey] extends Function | String ?
+              // If Item has a type key that's a string or a callable, it must be a scalar,
+              // so we can directly obtain its path type.
+              ObtainDocumentPathType<Item, TypeKey>[] :
+              // If the type key isn't callable, then this is an array of objects, in which case
+              // we need to call ObtainDocumentType to correctly infer its type.
+              Types.DocumentArray<ObtainDocumentType<Item, any, { typeKey: TypeKey }>> :
+            IsSchemaTypeFromBuiltinClass<Item> extends true ?
+              ObtainDocumentPathType<Item, TypeKey>[] :
+              IsItRecordAndNotAny<Item> extends true ?
+                Item extends Record<string, never> ?
+                  ObtainDocumentPathType<Item, TypeKey>[] :
+                  Types.DocumentArray<ObtainDocumentType<Item, any, { typeKey: TypeKey }>> :
+                ObtainDocumentPathType<Item, TypeKey>[]
+        >:
+        PathValueType extends ReadonlyArray<infer Item> ?
+          IfEquals<Item, never, any[], Item extends Schema ?
+            Types.DocumentArray<InferSchemaType<Item>> :
+            Item extends Record<TypeKey, any> ?
+              Item[TypeKey] extends Function | String ?
+                ObtainDocumentPathType<Item, TypeKey>[] :
+                ObtainDocumentType<Item, any, { typeKey: TypeKey }>[]:
+              IsSchemaTypeFromBuiltinClass<Item> extends true ?
+                ObtainDocumentPathType<Item, TypeKey>[] :
+                IsItRecordAndNotAny<Item> extends true ?
+                  Item extends Record<string, never> ?
+                    ObtainDocumentPathType<Item, TypeKey>[] :
+                    Types.DocumentArray<ObtainDocumentType<Item, any, { typeKey: TypeKey }>> :
+                  ObtainDocumentPathType<Item, TypeKey>[]
+          >:
+          PathValueType extends StringSchemaDefinition ? PathEnumOrString<Options['enum']> :
+            IfEquals<PathValueType, Schema.Types.String> extends true ? PathEnumOrString<Options['enum']> :
+              IfEquals<PathValueType, String> extends true ? PathEnumOrString<Options['enum']> :
+                PathValueType extends NumberSchemaDefinition ? Options['enum'] extends ReadonlyArray<any> ? Options['enum'][number] : number :
+                  IfEquals<PathValueType, Schema.Types.Number> extends true ? number :
+                    PathValueType extends DateSchemaDefinition ? NativeDate :
+                      IfEquals<PathValueType, Schema.Types.Date> extends true ? NativeDate :
+                        PathValueType extends typeof Buffer | 'buffer' | 'Buffer' | typeof Schema.Types.Buffer ? Buffer :
+                          PathValueType extends BooleanSchemaDefinition ? boolean :
+                            IfEquals<PathValueType, Schema.Types.Boolean> extends true ? boolean :
+                              PathValueType extends ObjectIdSchemaDefinition ? Types.ObjectId :
+                                IfEquals<PathValueType, Types.ObjectId> extends true ? Types.ObjectId :
+                                  IfEquals<PathValueType, Schema.Types.ObjectId> extends true ? Types.ObjectId :
+                                    PathValueType extends 'decimal128' | 'Decimal128' | typeof Schema.Types.Decimal128 ? Types.Decimal128 :
+                                      IfEquals<PathValueType, Schema.Types.Decimal128> extends true ? Types.Decimal128 :
+                                        IfEquals<PathValueType, Types.Decimal128> extends true ? Types.Decimal128 :
+                                            IfEquals<PathValueType, Schema.Types.BigInt> extends true ? bigint :
+                                              IfEquals<PathValueType, BigInt> extends true ? bigint :
+                                                PathValueType extends 'bigint' | 'BigInt' | typeof Schema.Types.BigInt | typeof BigInt ? bigint :
+                                                  PathValueType extends 'uuid' | 'UUID' | typeof Schema.Types.UUID ? Buffer :
+                                                    IfEquals<PathValueType, Schema.Types.UUID> extends true ? Buffer :
+                                                      PathValueType extends MapConstructor | 'Map' ? Map<string, ResolvePathType<Options['of']>> :
+                                                        IfEquals<PathValueType, typeof Schema.Types.Map> extends true ? Map<string, ResolvePathType<Options['of']>> :
+                                                          PathValueType extends ArrayConstructor ? any[] :
+                                                            PathValueType extends typeof Schema.Types.Mixed ? any:
+                                                              IfEquals<PathValueType, ObjectConstructor> extends true ? any:
+                                                                IfEquals<PathValueType, {}> extends true ? any:
+                                                                  PathValueType extends typeof SchemaType ? PathValueType['prototype'] :
+                                                                    PathValueType extends Record<string, any> ? ObtainDocumentType<PathValueType, any, { typeKey: TypeKey }> :
+                                                                      unknown,
+  TypeHint>;
diff --git a/backend/node_modules/mongoose/types/middlewares.d.ts b/backend/node_modules/mongoose/types/middlewares.d.ts
new file mode 100644
index 0000000..8d380ed
--- /dev/null
+++ b/backend/node_modules/mongoose/types/middlewares.d.ts
@@ -0,0 +1,50 @@
+declare module 'mongoose' {
+  import Kareem = require('kareem');
+
+  type MongooseQueryAndDocumentMiddleware = 'updateOne' | 'deleteOne';
+
+  type MongooseDistinctDocumentMiddleware = 'save' | 'init' | 'validate';
+  type MongooseDocumentMiddleware = MongooseDistinctDocumentMiddleware | MongooseQueryAndDocumentMiddleware;
+
+  type MongooseRawResultQueryMiddleware = 'findOneAndUpdate' | 'findOneAndReplace' | 'findOneAndDelete';
+  type MongooseDistinctQueryMiddleware = 'estimatedDocumentCount' | 'countDocuments' | 'deleteMany' | 'distinct' | 'find' | 'findOne' | 'findOneAndDelete' | 'findOneAndReplace' | 'findOneAndUpdate' | 'replaceOne' | 'updateMany';
+
+  type MongooseDefaultQueryMiddleware = MongooseDistinctQueryMiddleware | 'updateOne' | 'deleteOne';
+  type MongooseQueryMiddleware = MongooseDistinctQueryMiddleware | MongooseQueryAndDocumentMiddleware;
+
+  type MongooseQueryOrDocumentMiddleware = MongooseDistinctQueryMiddleware|MongooseDistinctDocumentMiddleware|MongooseQueryAndDocumentMiddleware;
+
+  type MiddlewareOptions = {
+    /**
+      * Enable this Hook for the Document Methods
+      * @default true
+      */
+    document?: boolean,
+    /**
+      * Enable this Hook for the Query Methods
+      * @default true
+      */
+    query?: boolean,
+    /**
+      * Explicitly set this function to be a Error handler instead of based on how many arguments are used
+      * @default false
+      */
+    errorHandler?: boolean
+  };
+  type SchemaPreOptions = MiddlewareOptions;
+  type SchemaPostOptions = MiddlewareOptions;
+
+  type PreMiddlewareFunction<ThisType = any> = (
+    this: ThisType,
+    next: CallbackWithoutResultAndOptionalError,
+    opts?: Record<string, any>
+  ) => void | Promise<void> | Kareem.SkipWrappedFunction;
+  type PreSaveMiddlewareFunction<ThisType = any> = (
+    this: ThisType,
+    next: CallbackWithoutResultAndOptionalError,
+    opts: SaveOptions
+  ) => void | Promise<void> | Kareem.SkipWrappedFunction;
+  type PostMiddlewareFunction<ThisType = any, ResType = any> = (this: ThisType, res: ResType, next: CallbackWithoutResultAndOptionalError) => void | Promise<void> | Kareem.OverwriteMiddlewareResult;
+  type ErrorHandlingMiddlewareFunction<ThisType = any, ResType = any> = (this: ThisType, err: NativeError, res: ResType, next: CallbackWithoutResultAndOptionalError) => void;
+  type ErrorHandlingMiddlewareWithOption<ThisType = any, ResType = any> = (this: ThisType, err: NativeError, res: ResType | null, next: CallbackWithoutResultAndOptionalError) => void | Promise<void> | Kareem.OverwriteMiddlewareResult;
+}
diff --git a/backend/node_modules/mongoose/types/models.d.ts b/backend/node_modules/mongoose/types/models.d.ts
new file mode 100644
index 0000000..fde1ad2
--- /dev/null
+++ b/backend/node_modules/mongoose/types/models.d.ts
@@ -0,0 +1,906 @@
+declare module 'mongoose' {
+  import mongodb = require('mongodb');
+
+  export interface DiscriminatorOptions {
+    value?: string | number | ObjectId;
+    clone?: boolean;
+    overwriteModels?: boolean;
+    mergeHooks?: boolean;
+    mergePlugins?: boolean;
+  }
+
+  export interface AcceptsDiscriminator {
+    /** Adds a discriminator type. */
+    discriminator<D>(
+      name: string | number,
+      schema: Schema,
+      value?: string | number | ObjectId | DiscriminatorOptions
+    ): Model<D>;
+    discriminator<T, U>(
+      name: string | number,
+      schema: Schema<T, U>,
+      value?: string | number | ObjectId | DiscriminatorOptions
+    ): U;
+  }
+
+  interface MongooseBulkWriteOptions extends mongodb.BulkWriteOptions {
+    session?: ClientSession;
+    skipValidation?: boolean;
+    throwOnValidationError?: boolean;
+    strict?: boolean | 'throw';
+    /** When false, do not add timestamps to documents. Can be overridden at the operation level. */
+    timestamps?: boolean;
+  }
+
+  interface MongooseBulkSaveOptions extends mongodb.BulkWriteOptions {
+    timestamps?: boolean;
+    session?: ClientSession;
+    validateBeforeSave?: boolean;
+  }
+
+  /**
+   * @deprecated use AnyBulkWriteOperation instead
+   */
+  interface MongooseBulkWritePerWriteOptions {
+    timestamps?: boolean;
+    strict?: boolean | 'throw';
+    session?: ClientSession;
+    skipValidation?: boolean;
+  }
+
+  interface HydrateOptions {
+    setters?: boolean;
+    hydratedPopulatedDocs?: boolean;
+  }
+
+  interface InsertManyOptions extends
+    PopulateOption,
+    SessionOption {
+    limit?: number;
+    // @deprecated, use includeResultMetadata instead
+    rawResult?: boolean;
+    includeResultMetadata?: boolean;
+    ordered?: boolean;
+    lean?: boolean;
+    throwOnValidationError?: boolean;
+  }
+
+  interface InsertManyResult<T> extends mongodb.InsertManyResult<T> {
+    mongoose?: { validationErrors?: Array<Error.CastError | Error.ValidatorError> };
+  }
+
+  type UpdateWriteOpResult = mongodb.UpdateResult;
+  type UpdateResult = mongodb.UpdateResult;
+  type DeleteResult = mongodb.DeleteResult;
+
+  interface MapReduceOptions<T, K, R> {
+    map: Function | string;
+    reduce: (key: K, vals: T[]) => R;
+    /** query filter object. */
+    query?: any;
+    /** sort input objects using this key */
+    sort?: any;
+    /** max number of documents */
+    limit?: number;
+    /** keep temporary data default: false */
+    keeptemp?: boolean;
+    /** finalize function */
+    finalize?: (key: K, val: R) => R;
+    /** scope variables exposed to map/reduce/finalize during execution */
+    scope?: any;
+    /** it is possible to make the execution stay in JS. Provided in MongoDB > 2.0.X default: false */
+    jsMode?: boolean;
+    /** provide statistics on job execution time. default: false */
+    verbose?: boolean;
+    readPreference?: string;
+    /** sets the output target for the map reduce job. default: {inline: 1} */
+    out?: {
+      /** the results are returned in an array */
+      inline?: number;
+      /**
+       * {replace: 'collectionName'} add the results to collectionName: the
+       * results replace the collection
+       */
+      replace?: string;
+      /**
+       * {reduce: 'collectionName'} add the results to collectionName: if
+       * dups are detected, uses the reducer / finalize functions
+       */
+      reduce?: string;
+      /**
+       * {merge: 'collectionName'} add the results to collectionName: if
+       * dups exist the new docs overwrite the old
+       */
+      merge?: string;
+    };
+  }
+
+  interface GeoSearchOptions {
+    /** x,y point to search for */
+    near: number[];
+    /** the maximum distance from the point near that a result can be */
+    maxDistance: number;
+    /** The maximum number of results to return */
+    limit?: number;
+    /** return the raw object instead of the Mongoose Model */
+    lean?: boolean;
+  }
+
+  interface ModifyResult<T> {
+    value: Default__v<Require_id<T>> | null;
+    /** see https://www.mongodb.com/docs/manual/reference/command/findAndModify/#lasterrorobject */
+    lastErrorObject?: {
+      updatedExisting?: boolean;
+      upserted?: mongodb.ObjectId;
+    };
+    ok: 0 | 1;
+  }
+
+  type WriteConcern = mongodb.WriteConcern;
+
+  /** A list of paths to validate. If set, Mongoose will validate only the modified paths that are in the given list. */
+  type PathsToValidate = string[] | string;
+  /**
+   * @deprecated
+   */
+  type pathsToValidate = PathsToValidate;
+
+  interface SaveOptions extends
+    SessionOption {
+    checkKeys?: boolean;
+    j?: boolean;
+    safe?: boolean | WriteConcern;
+    timestamps?: boolean | QueryTimestampsConfig;
+    validateBeforeSave?: boolean;
+    validateModifiedOnly?: boolean;
+    w?: number | string;
+    wtimeout?: number;
+  }
+
+  interface CreateOptions extends SaveOptions {
+    ordered?: boolean;
+    aggregateErrors?: boolean;
+  }
+
+  interface RemoveOptions extends SessionOption, Omit<mongodb.DeleteOptions, 'session'> {}
+
+  const Model: Model<any>;
+
+  export type AnyBulkWriteOperation<TSchema = AnyObject> = {
+    insertOne: InsertOneModel<TSchema>;
+  } | {
+    replaceOne: ReplaceOneModel<TSchema>;
+  } | {
+    updateOne: UpdateOneModel<TSchema>;
+  } | {
+    updateMany: UpdateManyModel<TSchema>;
+  } | {
+    deleteOne: DeleteOneModel<TSchema>;
+  } | {
+    deleteMany: DeleteManyModel<TSchema>;
+  };
+
+  export interface InsertOneModel<TSchema> {
+    document: mongodb.OptionalId<TSchema>;
+    /** When false, do not add timestamps. When true, overrides the `timestamps` option set in the `bulkWrite` options. */
+    timestamps?: boolean;
+  }
+
+  export interface ReplaceOneModel<TSchema = AnyObject> {
+    /** The filter to limit the replaced document. */
+    filter: RootFilterQuery<TSchema>;
+    /** The document with which to replace the matched document. */
+    replacement: mongodb.WithoutId<TSchema>;
+    /** Specifies a collation. */
+    collation?: mongodb.CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: mongodb.Hint;
+    /** When true, creates a new document if no document matches the query. */
+    upsert?: boolean;
+    /** When false, do not add timestamps. When true, overrides the `timestamps` option set in the `bulkWrite` options. */
+    timestamps?: boolean;
+  }
+
+  export interface UpdateOneModel<TSchema = AnyObject> {
+    /** The filter to limit the updated documents. */
+    filter: RootFilterQuery<TSchema>;
+    /** A document or pipeline containing update operators. */
+    update: UpdateQuery<TSchema>;
+    /** A set of filters specifying to which array elements an update should apply. */
+    arrayFilters?: AnyObject[];
+    /** Specifies a collation. */
+    collation?: mongodb.CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: mongodb.Hint;
+    /** When true, creates a new document if no document matches the query. */
+    upsert?: boolean;
+    /** When false, do not add timestamps. When true, overrides the `timestamps` option set in the `bulkWrite` options. */
+    timestamps?: boolean;
+  }
+
+  export interface UpdateManyModel<TSchema = AnyObject> {
+    /** The filter to limit the updated documents. */
+    filter: RootFilterQuery<TSchema>;
+    /** A document or pipeline containing update operators. */
+    update: UpdateQuery<TSchema>;
+    /** A set of filters specifying to which array elements an update should apply. */
+    arrayFilters?: AnyObject[];
+    /** Specifies a collation. */
+    collation?: mongodb.CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: mongodb.Hint;
+    /** When true, creates a new document if no document matches the query. */
+    upsert?: boolean;
+    /** When false, do not add timestamps. When true, overrides the `timestamps` option set in the `bulkWrite` options. */
+    timestamps?: boolean;
+  }
+
+  export interface DeleteOneModel<TSchema = AnyObject> {
+    /** The filter to limit the deleted documents. */
+    filter: RootFilterQuery<TSchema>;
+    /** Specifies a collation. */
+    collation?: mongodb.CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: mongodb.Hint;
+  }
+
+  export interface DeleteManyModel<TSchema = AnyObject> {
+    /** The filter to limit the deleted documents. */
+    filter: RootFilterQuery<TSchema>;
+    /** Specifies a collation. */
+    collation?: mongodb.CollationOptions;
+    /** The index to use. If specified, then the query system will only consider plans using the hinted index. */
+    hint?: mongodb.Hint;
+  }
+
+  /**
+   * Models are fancy constructors compiled from `Schema` definitions.
+   * An instance of a model is called a document.
+   * Models are responsible for creating and reading documents from the underlying MongoDB database
+   */
+  export interface Model<
+    TRawDocType,
+    TQueryHelpers = {},
+    TInstanceMethods = {},
+    TVirtuals = {},
+    THydratedDocumentType = HydratedDocument<TRawDocType, TVirtuals & TInstanceMethods, TQueryHelpers>,
+    TSchema = any> extends
+    NodeJS.EventEmitter,
+    AcceptsDiscriminator,
+    IndexManager,
+    SessionStarter {
+    new <DocType = Partial<TRawDocType>>(doc?: DocType, fields?: any | null, options?: boolean | AnyObject): THydratedDocumentType;
+
+    aggregate<R = any>(pipeline?: PipelineStage[], options?: AggregateOptions): Aggregate<Array<R>>;
+    aggregate<R = any>(pipeline: PipelineStage[]): Aggregate<Array<R>>;
+
+    /** Base Mongoose instance the model uses. */
+    base: Mongoose;
+
+    /**
+     * If this is a discriminator model, `baseModelName` is the name of
+     * the base model.
+     */
+    baseModelName: string | undefined;
+
+    /* Cast the given POJO to the model's schema */
+    castObject(obj: AnyObject, options?: { ignoreCastErrors?: boolean }): TRawDocType;
+
+    /* Apply defaults to the given document or POJO. */
+    applyDefaults(obj: AnyObject): AnyObject;
+    applyDefaults(obj: TRawDocType): TRawDocType;
+
+    /* Apply virtuals to the given POJO. */
+    applyVirtuals(obj: AnyObject, virtalsToApply?: string[]): AnyObject;
+
+    /**
+     * Apply this model's timestamps to a given POJO, including subdocument timestamps
+     */
+    applyTimestamps(obj: AnyObject, options?: { isUpdate?: boolean, currentTime?: () => Date }): AnyObject;
+
+    /**
+     * Sends multiple `insertOne`, `updateOne`, `updateMany`, `replaceOne`,
+     * `deleteOne`, and/or `deleteMany` operations to the MongoDB server in one
+     * command. This is faster than sending multiple independent operations (e.g.
+     * if you use `create()`) because with `bulkWrite()` there is only one network
+     * round trip to the MongoDB server.
+     */
+    bulkWrite<DocContents = TRawDocType>(
+      writes: Array<AnyBulkWriteOperation<DocContents extends Document ? any : (DocContents extends {} ? DocContents : any)>>,
+      options: MongooseBulkWriteOptions & { ordered: false }
+    ): Promise<mongodb.BulkWriteResult & { mongoose?: { validationErrors: Error[] } }>;
+    bulkWrite<DocContents = TRawDocType>(
+      writes: Array<AnyBulkWriteOperation<DocContents extends Document ? any : (DocContents extends {} ? DocContents : any)>>,
+      options?: MongooseBulkWriteOptions
+    ): Promise<mongodb.BulkWriteResult>;
+
+    /**
+     * Sends multiple `save()` calls in a single `bulkWrite()`. This is faster than
+     * sending multiple `save()` calls because with `bulkSave()` there is only one
+     * network round trip to the MongoDB server.
+     */
+    bulkSave(documents: Array<Document>, options?: MongooseBulkSaveOptions): Promise<mongodb.BulkWriteResult>;
+
+    /** Collection the model uses. */
+    collection: Collection;
+
+    /** Creates a `countDocuments` query: counts the number of documents that match `filter`. */
+    countDocuments(
+      filter?: RootFilterQuery<TRawDocType>,
+      options?: (mongodb.CountOptions & MongooseBaseQueryOptions<TRawDocType>) | null
+    ): QueryWithHelpers<
+      number,
+      THydratedDocumentType,
+      TQueryHelpers,
+      TRawDocType,
+      'countDocuments',
+      TInstanceMethods & TVirtuals
+    >;
+
+    /** Creates a new document or documents */
+    create<DocContents = AnyKeys<TRawDocType>>(docs: Array<TRawDocType | DocContents>, options: CreateOptions & { aggregateErrors: true }): Promise<(THydratedDocumentType | Error)[]>;
+    create<DocContents = AnyKeys<TRawDocType>>(docs: Array<TRawDocType | DocContents>, options?: CreateOptions): Promise<THydratedDocumentType[]>;
+    create<DocContents = AnyKeys<TRawDocType>>(doc: DocContents | TRawDocType): Promise<THydratedDocumentType>;
+    create<DocContents = AnyKeys<TRawDocType>>(...docs: Array<TRawDocType | DocContents>): Promise<THydratedDocumentType[]>;
+
+    /**
+     * Create the collection for this model. By default, if no indexes are specified,
+     * mongoose will not create the collection for the model until any documents are
+     * created. Use this method to create the collection explicitly.
+     */
+    createCollection<T extends mongodb.Document>(options?: mongodb.CreateCollectionOptions & Pick<SchemaOptions, 'expires'>): Promise<mongodb.Collection<T>>;
+
+    /**
+     * Create an [Atlas search index](https://www.mongodb.com/docs/atlas/atlas-search/create-index/).
+     * This function only works when connected to MongoDB Atlas.
+     */
+    createSearchIndex(description: SearchIndexDescription): Promise<string>;
+
+    /** Connection the model uses. */
+    db: Connection;
+
+    /**
+     * Deletes all of the documents that match `conditions` from the collection.
+     * Behaves like `remove()`, but deletes all documents that match `conditions`
+     * regardless of the `single` option.
+     */
+    deleteMany(
+      filter?: RootFilterQuery<TRawDocType>,
+      options?: (mongodb.DeleteOptions & MongooseBaseQueryOptions<TRawDocType>) | null
+    ): QueryWithHelpers<
+      mongodb.DeleteResult,
+      THydratedDocumentType,
+      TQueryHelpers,
+      TRawDocType,
+      'deleteMany',
+      TInstanceMethods & TVirtuals
+    >;
+    deleteMany(
+      filter: RootFilterQuery<TRawDocType>
+    ): QueryWithHelpers<
+      mongodb.DeleteResult,
+      THydratedDocumentType,
+      TQueryHelpers,
+      TRawDocType,
+      'deleteMany',
+      TInstanceMethods & TVirtuals
+    >;
+
+    /**
+     * Deletes the first document that matches `conditions` from the collection.
+     * Behaves like `remove()`, but deletes at most one document regardless of the
+     * `single` option.
+     */
+    deleteOne(
+      filter?: RootFilterQuery<TRawDocType>,
+      options?: (mongodb.DeleteOptions & MongooseBaseQueryOptions<TRawDocType>) | null
+    ): QueryWithHelpers<
+      mongodb.DeleteResult,
+      THydratedDocumentType,
+      TQueryHelpers,
+      TRawDocType,
+      'deleteOne',
+      TInstanceMethods & TVirtuals
+    >;
+    deleteOne(
+      filter: RootFilterQuery<TRawDocType>
+    ): QueryWithHelpers<
+      mongodb.DeleteResult,
+      THydratedDocumentType,
+      TQueryHelpers,
+      TRawDocType,
+      'deleteOne',
+      TInstanceMethods & TVirtuals
+    >;
+
+    /**
+     * Delete an existing [Atlas search index](https://www.mongodb.com/docs/atlas/atlas-search/create-index/) by name.
+     * This function only works when connected to MongoDB Atlas.
+     */
+    dropSearchIndex(name: string): Promise<void>;
+
+    /**
+     * Event emitter that reports any errors that occurred. Useful for global error
+     * handling.
+     */
+    events: NodeJS.EventEmitter;
+
+    /**
+     * Finds a single document by its _id field. `findById(id)` is almost*
+     * equivalent to `findOne({ _id: id })`. If you want to query by a document's
+     * `_id`, use `findById()` instead of `findOne()`.
+     */
+    findById<ResultDoc = THydratedDocumentType>(
+      id: any,
+      projection: ProjectionType<TRawDocType> | null | undefined,
+      options: QueryOptions<TRawDocType> & { lean: true }
+    ): QueryWithHelpers<
+      GetLeanResultType<TRawDocType, TRawDocType, 'findOne'> | null,
+      ResultDoc,
+      TQueryHelpers,
+      TRawDocType,
+      'findOne',
+      TInstanceMethods & TVirtuals
+    >;
+    findById<ResultDoc = THydratedDocumentType>(
+      id: any,
+      projection?: ProjectionType<TRawDocType> | null,
+      options?: QueryOptions<TRawDocType> | null
+    ): QueryWithHelpers<ResultDoc | null, ResultDoc, TQueryHelpers, TRawDocType, 'findOne', TInstanceMethods & TVirtuals>;
+    findById<ResultDoc = THydratedDocumentType>(
+      id: any,
+      projection?: ProjectionType<TRawDocType> | null
+    ): QueryWithHelpers<ResultDoc | null, ResultDoc, TQueryHelpers, TRawDocType, 'findOne', TInstanceMethods & TVirtuals>;
+
+    /** Finds one document. */
+    findOne<ResultDoc = THydratedDocumentType>(
+      filter: RootFilterQuery<TRawDocType>,
+      projection: ProjectionType<TRawDocType> | null | undefined,
+      options: QueryOptions<TRawDocType> & { lean: true }
+    ): QueryWithHelpers<
+      GetLeanResultType<TRawDocType, TRawDocType, 'findOne'> | null,
+      ResultDoc,
+      TQueryHelpers,
+      TRawDocType,
+      'findOne',
+      TInstanceMethods & TVirtuals
+    >;
+    findOne<ResultDoc = THydratedDocumentType>(
+      filter?: RootFilterQuery<TRawDocType>,
+      projection?: ProjectionType<TRawDocType> | null,
+      options?: QueryOptions<TRawDocType> | null
+    ): QueryWithHelpers<ResultDoc | null, ResultDoc, TQueryHelpers, TRawDocType, 'findOne', TInstanceMethods & TVirtuals>;
+    findOne<ResultDoc = THydratedDocumentType>(
+      filter?: RootFilterQuery<TRawDocType>,
+      projection?: ProjectionType<TRawDocType> | null
+    ): QueryWithHelpers<ResultDoc | null, ResultDoc, TQueryHelpers, TRawDocType, 'findOne', TInstanceMethods & TVirtuals>;
+    findOne<ResultDoc = THydratedDocumentType>(
+      filter?: RootFilterQuery<TRawDocType>
+    ): QueryWithHelpers<ResultDoc | null, ResultDoc, TQueryHelpers, TRawDocType, 'findOne', TInstanceMethods & TVirtuals>;
+
+    /**
+     * Shortcut for creating a new Document from existing raw data, pre-saved in the DB.
+     * The document returned has no paths marked as modified initially.
+     */
+    hydrate(obj: any, projection?: AnyObject, options?: HydrateOptions): THydratedDocumentType;
+
+    /**
+     * This function is responsible for building [indexes](https://www.mongodb.com/docs/manual/indexes/),
+     * unless [`autoIndex`](http://mongoosejs.com/docs/guide.html#autoIndex) is turned off.
+     * Mongoose calls this function automatically when a model is created using
+     * [`mongoose.model()`](/docs/api/mongoose.html#mongoose_Mongoose-model) or
+     * [`connection.model()`](/docs/api/connection.html#connection_Connection-model), so you
+     * don't need to call it.
+     */
+    init(): Promise<THydratedDocumentType>;
+
+    /** Inserts one or more new documents as a single `insertMany` call to the MongoDB server. */
+    insertMany(
+      docs: Array<TRawDocType>
+    ): Promise<Array<THydratedDocumentType>>;
+    insertMany(
+      docs: Array<TRawDocType>,
+      options: InsertManyOptions & { lean: true; }
+    ): Promise<Array<Require_id<TRawDocType>>>;
+    insertMany(
+      doc: Array<TRawDocType>,
+      options: InsertManyOptions & { ordered: false; rawResult: true; }
+    ): Promise<mongodb.InsertManyResult<Require_id<TRawDocType>> & {
+      mongoose: {
+        validationErrors: (CastError | Error.ValidatorError)[];
+        results: Array<
+          Error |
+          Object |
+          THydratedDocumentType
+        >
+      }
+    }>;
+    insertMany(
+      docs: Array<TRawDocType>,
+      options: InsertManyOptions & { lean: true, rawResult: true; }
+    ): Promise<mongodb.InsertManyResult<Require_id<TRawDocType>>>;
+    insertMany(
+      docs: Array<TRawDocType>,
+      options: InsertManyOptions & { rawResult: true; }
+    ): Promise<mongodb.InsertManyResult<Require_id<THydratedDocumentType>>>;
+    insertMany(
+      doc: Array<TRawDocType>,
+      options: InsertManyOptions
+    ): Promise<Array<THydratedDocumentType>>;
+    insertMany<DocContents = TRawDocType>(
+      docs: Array<DocContents | TRawDocType>,
+      options: InsertManyOptions & { lean: true; }
+    ): Promise<Array<Require_id<DocContents>>>;
+    insertMany<DocContents = TRawDocType>(
+      docs: DocContents | TRawDocType,
+      options: InsertManyOptions & { lean: true; }
+    ): Promise<Array<Require_id<DocContents>>>;
+    insertMany<DocContents = TRawDocType>(
+      doc: DocContents | TRawDocType,
+      options: InsertManyOptions & { ordered: false; rawResult: true; }
+    ): Promise<mongodb.InsertManyResult<Require_id<DocContents>> & {
+      mongoose: {
+        validationErrors: (CastError | Error.ValidatorError)[];
+        results: Array<
+          Error |
+          Object |
+          MergeType<THydratedDocumentType, DocContents>
+        >
+      }
+    }>;
+    insertMany<DocContents = TRawDocType>(
+      docs: Array<DocContents | TRawDocType>,
+      options: InsertManyOptions & { rawResult: true; }
+    ): Promise<mongodb.InsertManyResult<Require_id<DocContents>>>;
+    insertMany<DocContents = TRawDocType>(
+      docs: Array<DocContents | TRawDocType>
+    ): Promise<Array<MergeType<THydratedDocumentType, Omit<DocContents, '_id'>>>>;
+    insertMany<DocContents = TRawDocType>(
+      doc: DocContents,
+      options: InsertManyOptions & { lean: true; }
+    ): Promise<Array<Require_id<DocContents>>>;
+    insertMany<DocContents = TRawDocType>(
+      doc: DocContents,
+      options: InsertManyOptions & { rawResult: true; }
+    ): Promise<mongodb.InsertManyResult<Require_id<DocContents>>>;
+    insertMany<DocContents = TRawDocType>(
+      doc: DocContents,
+      options: InsertManyOptions
+    ): Promise<Array<MergeType<THydratedDocumentType, Omit<DocContents, '_id'>>>>;
+    insertMany<DocContents = TRawDocType>(
+      docs: Array<DocContents | TRawDocType>,
+      options: InsertManyOptions
+    ): Promise<Array<MergeType<THydratedDocumentType, Omit<DocContents, '_id'>>>>;
+    insertMany<DocContents = TRawDocType>(
+      doc: DocContents
+    ): Promise<
+      Array<MergeType<THydratedDocumentType, Omit<DocContents, '_id'>>>
+    >;
+
+    /**
+     * List all [Atlas search indexes](https://www.mongodb.com/docs/atlas/atlas-search/create-index/) on this model's collection.
+     * This function only works when connected to MongoDB Atlas.
+     */
+    listSearchIndexes(options?: mongodb.ListSearchIndexesOptions): Promise<Array<{ name: string }>>;
+
+    /** The name of the model */
+    modelName: string;
+
+    /** Populates document references. */
+    populate(
+      docs: Array<any>,
+      options: PopulateOptions | Array<PopulateOptions> | string
+    ): Promise<Array<THydratedDocumentType>>;
+    populate(
+      doc: any, options: PopulateOptions | Array<PopulateOptions> | string
+    ): Promise<THydratedDocumentType>;
+    populate<Paths>(
+      docs: Array<any>,
+      options: PopulateOptions | Array<PopulateOptions> | string
+    ): Promise<Array<MergeType<THydratedDocumentType, Paths>>>;
+    populate<Paths>(
+      doc: any, options: PopulateOptions | Array<PopulateOptions> | string
+    ): Promise<MergeType<THydratedDocumentType, Paths>>;
+
+    /**
+     * Update an existing [Atlas search index](https://www.mongodb.com/docs/atlas/atlas-search/create-index/).
+     * This function only works when connected to MongoDB Atlas.
+     */
+    updateSearchIndex(name: string, definition: AnyObject): Promise<void>;
+
+    /** Casts and validates the given object against this model's schema, passing the given `context` to custom validators. */
+    validate(): Promise<void>;
+    validate(obj: any): Promise<void>;
+    validate(obj: any, pathsOrOptions: PathsToValidate): Promise<void>;
+    validate(obj: any, pathsOrOptions: { pathsToSkip?: pathsToSkip }): Promise<void>;
+
+    /** Watches the underlying collection for changes using [MongoDB change streams](https://www.mongodb.com/docs/manual/changeStreams/). */
+    watch<ResultType extends mongodb.Document = any, ChangeType extends mongodb.ChangeStreamDocument = any>(pipeline?: Array<Record<string, unknown>>, options?: mongodb.ChangeStreamOptions & { hydrate?: boolean }): mongodb.ChangeStream<ResultType, ChangeType>;
+
+    /** Adds a `$where` clause to this query */
+    $where(argument: string | Function): QueryWithHelpers<Array<THydratedDocumentType>, THydratedDocumentType, TQueryHelpers, TRawDocType, 'find', TInstanceMethods & TVirtuals>;
+
+    /** Registered discriminators for this model. */
+    discriminators: { [name: string]: Model<any> } | undefined;
+
+    /** Translate any aliases fields/conditions so the final query or document object is pure */
+    translateAliases(raw: any): any;
+
+    /** Creates a `distinct` query: returns the distinct values of the given `field` that match `filter`. */
+    distinct<DocKey extends string, ResultType = unknown>(
+      field: DocKey,
+      filter?: RootFilterQuery<TRawDocType>,
+      options?: QueryOptions<TRawDocType>
+    ): QueryWithHelpers<
+      Array<
+        DocKey extends keyof WithLevel1NestedPaths<TRawDocType>
+          ? WithoutUndefined<Unpacked<WithLevel1NestedPaths<TRawDocType>[DocKey]>>
+          : ResultType
+      >,
+      THydratedDocumentType,
+      TQueryHelpers,
+      TRawDocType,
+      'distinct',
+      TInstanceMethods & TVirtuals
+    >;
+
+    /** Creates a `estimatedDocumentCount` query: counts the number of documents in the collection. */
+    estimatedDocumentCount(options?: QueryOptions<TRawDocType>): QueryWithHelpers<
+      number,
+      THydratedDocumentType,
+      TQueryHelpers,
+      TRawDocType,
+      'estimatedDocumentCount',
+      TInstanceMethods & TVirtuals
+    >;
+
+    /**
+     * Returns a document with its `_id` if at least one document exists in the database that matches
+     * the given `filter`, and `null` otherwise.
+     */
+    exists(
+      filter: RootFilterQuery<TRawDocType>
+    ): QueryWithHelpers<
+      { _id: InferId<TRawDocType> } | null,
+      THydratedDocumentType,
+      TQueryHelpers,
+      TRawDocType,
+      'findOne',
+      TInstanceMethods & TVirtuals
+    >;
+
+    /** Creates a `find` query: gets a list of documents that match `filter`. */
+    find<ResultDoc = THydratedDocumentType>(
+      filter: RootFilterQuery<TRawDocType>,
+      projection: ProjectionType<TRawDocType> | null | undefined,
+      options: QueryOptions<TRawDocType> & { lean: true }
+    ): QueryWithHelpers<
+      GetLeanResultType<TRawDocType, TRawDocType[], 'find'>,
+      ResultDoc,
+      TQueryHelpers,
+      TRawDocType,
+      'find',
+      TInstanceMethods & TVirtuals
+    >;
+    find<ResultDoc = THydratedDocumentType>(
+      filter: RootFilterQuery<TRawDocType>,
+      projection?: ProjectionType<TRawDocType> | null | undefined,
+      options?: QueryOptions<TRawDocType> | null | undefined
+    ): QueryWithHelpers<Array<ResultDoc>, ResultDoc, TQueryHelpers, TRawDocType, 'find', TInstanceMethods & TVirtuals>;
+    find<ResultDoc = THydratedDocumentType>(
+      filter: RootFilterQuery<TRawDocType>,
+      projection?: ProjectionType<TRawDocType> | null | undefined
+    ): QueryWithHelpers<Array<ResultDoc>, ResultDoc, TQueryHelpers, TRawDocType, 'find', TInstanceMethods & TVirtuals>;
+    find<ResultDoc = THydratedDocumentType>(
+      filter: RootFilterQuery<TRawDocType>
+    ): QueryWithHelpers<Array<ResultDoc>, ResultDoc, TQueryHelpers, TRawDocType, 'find', TInstanceMethods & TVirtuals>;
+    find<ResultDoc = THydratedDocumentType>(
+    ): QueryWithHelpers<Array<ResultDoc>, ResultDoc, TQueryHelpers, TRawDocType, 'find', TInstanceMethods & TVirtuals>;
+
+    /** Creates a `findByIdAndDelete` query, filtering by the given `_id`. */
+    findByIdAndDelete<ResultDoc = THydratedDocumentType>(
+      id: mongodb.ObjectId | any,
+      options: QueryOptions<TRawDocType> & { lean: true }
+    ): QueryWithHelpers<
+      GetLeanResultType<TRawDocType, TRawDocType, 'findOneAndDelete'> | null,
+      ResultDoc,
+      TQueryHelpers,
+      TRawDocType,
+      'findOneAndDelete',
+      TInstanceMethods & TVirtuals
+    >;
+    findByIdAndDelete<ResultDoc = THydratedDocumentType>(
+      id: mongodb.ObjectId | any,
+      options: QueryOptions<TRawDocType> & { includeResultMetadata: true }
+    ): QueryWithHelpers<ModifyResult<ResultDoc>, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndDelete', TInstanceMethods & TVirtuals>;
+    findByIdAndDelete<ResultDoc = THydratedDocumentType>(
+      id?: mongodb.ObjectId | any,
+      options?: QueryOptions<TRawDocType> | null
+    ): QueryWithHelpers<ResultDoc | null, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndDelete', TInstanceMethods & TVirtuals>;
+
+    /** Creates a `findOneAndUpdate` query, filtering by the given `_id`. */
+    findByIdAndUpdate<ResultDoc = THydratedDocumentType>(
+      filter: RootFilterQuery<TRawDocType>,
+      update: UpdateQuery<TRawDocType>,
+      options: QueryOptions<TRawDocType> & { includeResultMetadata: true, lean: true }
+    ): QueryWithHelpers<
+      ModifyResult<TRawDocType>,
+      ResultDoc,
+      TQueryHelpers,
+      TRawDocType,
+      'findOneAndUpdate',
+      TInstanceMethods & TVirtuals
+    >;
+    findByIdAndUpdate<ResultDoc = THydratedDocumentType>(
+      id: mongodb.ObjectId | any,
+      update: UpdateQuery<TRawDocType>,
+      options: QueryOptions<TRawDocType> & { lean: true }
+    ): QueryWithHelpers<
+      GetLeanResultType<TRawDocType, TRawDocType, 'findOneAndUpdate'> | null,
+      ResultDoc,
+      TQueryHelpers,
+      TRawDocType,
+      'findOneAndUpdate',
+      TInstanceMethods & TVirtuals
+    >;
+    findByIdAndUpdate<ResultDoc = THydratedDocumentType>(
+      id: mongodb.ObjectId | any,
+      update: UpdateQuery<TRawDocType>,
+      options: QueryOptions<TRawDocType> & { includeResultMetadata: true }
+    ): QueryWithHelpers<ModifyResult<ResultDoc>, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndUpdate', TInstanceMethods & TVirtuals>;
+    findByIdAndUpdate<ResultDoc = THydratedDocumentType>(
+      id: mongodb.ObjectId | any,
+      update: UpdateQuery<TRawDocType>,
+      options: QueryOptions<TRawDocType> & { upsert: true } & ReturnsNewDoc
+    ): QueryWithHelpers<ResultDoc, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndUpdate', TInstanceMethods & TVirtuals>;
+    findByIdAndUpdate<ResultDoc = THydratedDocumentType>(
+      id?: mongodb.ObjectId | any,
+      update?: UpdateQuery<TRawDocType>,
+      options?: QueryOptions<TRawDocType> | null
+    ): QueryWithHelpers<ResultDoc | null, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndUpdate', TInstanceMethods & TVirtuals>;
+    findByIdAndUpdate<ResultDoc = THydratedDocumentType>(
+      id: mongodb.ObjectId | any,
+      update: UpdateQuery<TRawDocType>
+    ): QueryWithHelpers<ResultDoc | null, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndUpdate', TInstanceMethods & TVirtuals>;
+
+    /** Creates a `findOneAndDelete` query: atomically finds the given document, deletes it, and returns the document as it was before deletion. */
+    findOneAndDelete<ResultDoc = THydratedDocumentType>(
+      filter: RootFilterQuery<TRawDocType>,
+      options: QueryOptions<TRawDocType> & { lean: true }
+    ): QueryWithHelpers<
+      GetLeanResultType<TRawDocType, TRawDocType, 'findOneAndDelete'> | null,
+      ResultDoc,
+      TQueryHelpers,
+      TRawDocType,
+      'findOneAndDelete',
+      TInstanceMethods & TVirtuals
+    >;
+    findOneAndDelete<ResultDoc = THydratedDocumentType>(
+      filter: RootFilterQuery<TRawDocType>,
+      options: QueryOptions<TRawDocType> & { includeResultMetadata: true }
+    ): QueryWithHelpers<ModifyResult<ResultDoc>, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndDelete', TInstanceMethods & TVirtuals>;
+    findOneAndDelete<ResultDoc = THydratedDocumentType>(
+      filter?: RootFilterQuery<TRawDocType> | null,
+      options?: QueryOptions<TRawDocType> | null
+    ): QueryWithHelpers<ResultDoc | null, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndDelete', TInstanceMethods & TVirtuals>;
+
+    /** Creates a `findOneAndReplace` query: atomically finds the given document and replaces it with `replacement`. */
+    findOneAndReplace<ResultDoc = THydratedDocumentType>(
+      filter: RootFilterQuery<TRawDocType>,
+      replacement: TRawDocType | AnyObject,
+      options: QueryOptions<TRawDocType> & { lean: true }
+    ): QueryWithHelpers<
+      GetLeanResultType<TRawDocType, TRawDocType, 'findOneAndReplace'> | null,
+      ResultDoc,
+      TQueryHelpers,
+      TRawDocType,
+      'findOneAndReplace',
+      TInstanceMethods & TVirtuals
+    >;
+    findOneAndReplace<ResultDoc = THydratedDocumentType>(
+      filter: RootFilterQuery<TRawDocType>,
+      replacement: TRawDocType | AnyObject,
+      options: QueryOptions<TRawDocType> & { includeResultMetadata: true }
+    ): QueryWithHelpers<ModifyResult<ResultDoc>, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndReplace', TInstanceMethods & TVirtuals>;
+    findOneAndReplace<ResultDoc = THydratedDocumentType>(
+      filter: RootFilterQuery<TRawDocType>,
+      replacement: TRawDocType | AnyObject,
+      options: QueryOptions<TRawDocType> & { upsert: true } & ReturnsNewDoc
+    ): QueryWithHelpers<ResultDoc, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndReplace', TInstanceMethods & TVirtuals>;
+    findOneAndReplace<ResultDoc = THydratedDocumentType>(
+      filter?: RootFilterQuery<TRawDocType>,
+      replacement?: TRawDocType | AnyObject,
+      options?: QueryOptions<TRawDocType> | null
+    ): QueryWithHelpers<ResultDoc | null, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndReplace', TInstanceMethods & TVirtuals>;
+
+    /** Creates a `findOneAndUpdate` query: atomically find the first document that matches `filter` and apply `update`. */
+    findOneAndUpdate<ResultDoc = THydratedDocumentType>(
+      filter: RootFilterQuery<TRawDocType>,
+      update: UpdateQuery<TRawDocType>,
+      options: QueryOptions<TRawDocType> & { includeResultMetadata: true, lean: true }
+    ): QueryWithHelpers<
+      ModifyResult<TRawDocType>,
+      ResultDoc,
+      TQueryHelpers,
+      TRawDocType,
+      'findOneAndUpdate',
+      TInstanceMethods & TVirtuals
+    >;
+    findOneAndUpdate<ResultDoc = THydratedDocumentType>(
+      filter: RootFilterQuery<TRawDocType>,
+      update: UpdateQuery<TRawDocType>,
+      options: QueryOptions<TRawDocType> & { lean: true }
+    ): QueryWithHelpers<
+      GetLeanResultType<TRawDocType, TRawDocType, 'findOneAndUpdate'> | null,
+      ResultDoc,
+      TQueryHelpers,
+      TRawDocType,
+      'findOneAndUpdate',
+      TInstanceMethods & TVirtuals
+    >;
+    findOneAndUpdate<ResultDoc = THydratedDocumentType>(
+      filter: RootFilterQuery<TRawDocType>,
+      update: UpdateQuery<TRawDocType>,
+      options: QueryOptions<TRawDocType> & { includeResultMetadata: true }
+    ): QueryWithHelpers<ModifyResult<ResultDoc>, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndUpdate', TInstanceMethods & TVirtuals>;
+    findOneAndUpdate<ResultDoc = THydratedDocumentType>(
+      filter: RootFilterQuery<TRawDocType>,
+      update: UpdateQuery<TRawDocType>,
+      options: QueryOptions<TRawDocType> & { upsert: true } & ReturnsNewDoc
+    ): QueryWithHelpers<ResultDoc, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndUpdate', TInstanceMethods & TVirtuals>;
+    findOneAndUpdate<ResultDoc = THydratedDocumentType>(
+      filter?: RootFilterQuery<TRawDocType>,
+      update?: UpdateQuery<TRawDocType>,
+      options?: QueryOptions<TRawDocType> | null
+    ): QueryWithHelpers<ResultDoc | null, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndUpdate', TInstanceMethods & TVirtuals>;
+
+    /** Creates a `replaceOne` query: finds the first document that matches `filter` and replaces it with `replacement`. */
+    replaceOne<ResultDoc = THydratedDocumentType>(
+      filter?: RootFilterQuery<TRawDocType>,
+      replacement?: TRawDocType | AnyObject,
+      options?: (mongodb.ReplaceOptions & MongooseQueryOptions<TRawDocType>) | null
+    ): QueryWithHelpers<UpdateWriteOpResult, ResultDoc, TQueryHelpers, TRawDocType, 'replaceOne', TInstanceMethods & TVirtuals>;
+
+    /** Apply changes made to this model's schema after this model was compiled. */
+    recompileSchema(): void;
+
+    /** Schema the model uses. */
+    schema: Schema<TRawDocType>;
+
+    /** Creates a `updateMany` query: updates all documents that match `filter` with `update`. */
+    updateMany<ResultDoc = THydratedDocumentType>(
+      filter?: RootFilterQuery<TRawDocType>,
+      update?: UpdateQuery<TRawDocType> | UpdateWithAggregationPipeline,
+      options?: (mongodb.UpdateOptions & MongooseUpdateQueryOptions<TRawDocType>) | null
+    ): QueryWithHelpers<UpdateWriteOpResult, ResultDoc, TQueryHelpers, TRawDocType, 'updateMany', TInstanceMethods & TVirtuals>;
+
+    /** Creates a `updateOne` query: updates the first document that matches `filter` with `update`. */
+    updateOne<ResultDoc = THydratedDocumentType>(
+      filter?: RootFilterQuery<TRawDocType>,
+      update?: UpdateQuery<TRawDocType> | UpdateWithAggregationPipeline,
+      options?: (mongodb.UpdateOptions & MongooseUpdateQueryOptions<TRawDocType>) | null
+    ): QueryWithHelpers<UpdateWriteOpResult, ResultDoc, TQueryHelpers, TRawDocType, 'updateOne', TInstanceMethods & TVirtuals>;
+
+    /** Creates a Query, applies the passed conditions, and returns the Query. */
+    where<ResultDoc = THydratedDocumentType>(
+      path: string,
+      val?: any
+    ): QueryWithHelpers<Array<ResultDoc>, ResultDoc, TQueryHelpers, TRawDocType, 'find', TInstanceMethods>;
+    where<ResultDoc = THydratedDocumentType>(obj: object): QueryWithHelpers<
+      Array<ResultDoc>,
+      ResultDoc,
+      TQueryHelpers,
+      TRawDocType,
+      'find',
+      TInstanceMethods & TVirtuals
+    >;
+    where<ResultDoc = THydratedDocumentType>(): QueryWithHelpers<
+      Array<ResultDoc>,
+      ResultDoc,
+      TQueryHelpers,
+      TRawDocType,
+      'find',
+      TInstanceMethods & TVirtuals
+    >;
+  }
+}
diff --git a/backend/node_modules/mongoose/types/mongooseoptions.d.ts b/backend/node_modules/mongoose/types/mongooseoptions.d.ts
new file mode 100644
index 0000000..9c35ab8
--- /dev/null
+++ b/backend/node_modules/mongoose/types/mongooseoptions.d.ts
@@ -0,0 +1,219 @@
+declare module 'mongoose' {
+  import stream = require('stream');
+
+  interface MongooseOptions {
+    /**
+     * Set to `true` to set `allowDiskUse` to true to all aggregation operations by default.
+     *
+     * @default false
+     */
+    allowDiskUse?: boolean;
+    /**
+     * Set to `false` to skip applying global plugins to child schemas.
+     *
+     * @default true
+     */
+    applyPluginsToChildSchemas?: boolean;
+
+    /**
+     * Set to `true` to apply global plugins to discriminator schemas.
+     * This typically isn't necessary because plugins are applied to the base schema and
+     * discriminators copy all middleware, methods, statics, and properties from the base schema.
+     *
+     * @default false
+     */
+    applyPluginsToDiscriminators?: boolean;
+
+    /**
+     * autoCreate is `true` by default unless readPreference is secondary or secondaryPreferred,
+     * which means Mongoose will attempt to create every model's underlying collection before
+     * creating indexes. If readPreference is secondary or secondaryPreferred, Mongoose will
+     * default to false for both autoCreate and autoIndex because both createCollection() and
+     * createIndex() will fail when connected to a secondary.
+     */
+    autoCreate?: boolean;
+
+    /**
+     * Set to `false` to disable automatic index creation for all models associated with this Mongoose instance.
+     *
+     * @default true
+     */
+    autoIndex?: boolean;
+
+    /**
+     * enable/disable mongoose's buffering mechanism for all connections and models.
+     *
+     * @default true
+     */
+    bufferCommands?: boolean;
+
+    /**
+     * If bufferCommands is on, this option sets the maximum amount of time Mongoose
+     * buffering will wait before throwing an error.
+     * If not specified, Mongoose will use 10000 (10 seconds).
+     *
+     * @default 10000
+     */
+    bufferTimeoutMS?: number;
+
+    /**
+     * Set to `true` to `clone()` all schemas before compiling into a model.
+     *
+     * @default false
+     */
+    cloneSchemas?: boolean;
+
+    /**
+     * Set to `false` to disable the creation of the initial default connection.
+     *
+     * @default true
+     */
+    createInitialConnection?: boolean;
+
+    /**
+     * If `true`, prints the operations mongoose sends to MongoDB to the console.
+     * If a writable stream is passed, it will log to that stream, without colorization.
+     * If a callback function is passed, it will receive the collection name, the method
+     * name, then all arguments passed to the method. For example, if you wanted to
+     * replicate the default logging, you could output from the callback
+     * `Mongoose: ${collectionName}.${methodName}(${methodArgs.join(', ')})`.
+     *
+     * @default false
+     */
+    debug?:
+    | boolean
+    | { color?: boolean; shell?: boolean; }
+    | stream.Writable
+    | ((collectionName: string, methodName: string, ...methodArgs: any[]) => void);
+
+    /**
+     * If `true`, adds a `id` virtual to all schemas unless overwritten on a per-schema basis.
+     * @defaultValue true
+     */
+    id?: boolean;
+
+    /**
+     * If `false`, it will change the `createdAt` field to be [`immutable: false`](https://mongoosejs.com/docs/api/schematype.html#schematype_SchemaType-immutable)
+     * which means you can update the `createdAt`.
+     *
+     * @default true
+     */
+    'timestamps.createdAt.immutable'?: boolean
+
+    /** If set, attaches [maxTimeMS](https://www.mongodb.com/docs/manual/reference/operator/meta/maxTimeMS/) to every query */
+    maxTimeMS?: number;
+
+    /**
+     * Mongoose adds a getter to MongoDB ObjectId's called `_id` that
+     * returns `this` for convenience with populate. Set this to false to remove the getter.
+     *
+     * @default true
+     */
+    objectIdGetter?: boolean;
+
+    /**
+     * Set to `true` to default to overwriting models with the same name when calling
+     * `mongoose.model()`, as opposed to throwing an `OverwriteModelError`.
+     *
+     * @default false
+     */
+    overwriteModels?: boolean;
+
+    /**
+     * If `false`, changes the default `returnOriginal` option to `findOneAndUpdate()`,
+     * `findByIdAndUpdate`, and `findOneAndReplace()` to false. This is equivalent to
+     * setting the `new` option to `true` for `findOneAndX()` calls by default. Read our
+     * `findOneAndUpdate()` [tutorial](https://mongoosejs.com/docs/tutorials/findoneandupdate.html)
+     * for more information.
+     *
+     * @default true
+     */
+    returnOriginal?: boolean;
+
+    /**
+     * Set to true to enable [update validators](
+     * https://mongoosejs.com/docs/validation.html#update-validators
+     * ) for all validators by default.
+     *
+     * @default false
+     */
+    runValidators?: boolean;
+
+    /**
+     * Sanitizes query filters against [query selector injection attacks](
+     * https://thecodebarbarian.com/2014/09/04/defending-against-query-selector-injection-attacks.html
+     * ) by wrapping any nested objects that have a property whose name starts with $ in a $eq.
+     */
+    sanitizeFilter?: boolean;
+
+    sanitizeProjection?: boolean;
+
+    /**
+     * Set to false to opt out of Mongoose adding all fields that you `populate()`
+     * to your `select()`. The schema-level option `selectPopulatedPaths` overwrites this one.
+     *
+     * @default true
+     */
+    selectPopulatedPaths?: boolean;
+
+    /**
+     * Mongoose also sets defaults on update() and findOneAndUpdate() when the upsert option is
+     * set by adding your schema's defaults to a MongoDB $setOnInsert operator. You can disable
+     * this behavior by setting the setDefaultsOnInsert option to false.
+     *
+     * @default true
+     */
+    setDefaultsOnInsert?: boolean;
+
+    /**
+     * Sets the default strict mode for schemas.
+     * May be `false`, `true`, or `'throw'`.
+     *
+     * @default true
+     */
+    strict?: boolean | 'throw';
+
+    /**
+     * Set to `false` to allow populating paths that aren't in the schema.
+     *
+     * @default true
+     */
+    strictPopulate?: boolean;
+
+    /**
+     * Sets the default [strictQuery](https://mongoosejs.com/docs/guide.html#strictQuery) mode for schemas.
+     * May be `false`, `true`, or `'throw'`.
+     *
+     * @default false
+     */
+    strictQuery?: boolean | 'throw';
+
+    /**
+     * Overwrites default objects to `toJSON()`, for determining how Mongoose
+     * documents get serialized by `JSON.stringify()`
+     *
+     * @default { transform: true, flattenDecimals: true }
+     */
+    toJSON?: ToObjectOptions;
+
+    /**
+     * Overwrites default objects to `toObject()`
+     *
+     * @default { transform: true, flattenDecimals: true }
+     */
+    toObject?: ToObjectOptions;
+
+    /**
+     * Set to true to make Mongoose use Node.js' built-in AsyncLocalStorage (Node >= 16.0.0)
+     * to set `session` option on all operations within a `connection.transaction(fn)` call
+     * by default. Defaults to false.
+     */
+    transactionAsyncLocalStorage?: boolean;
+
+    /**
+     * If `true`, convert any aliases in filter, projection, update, and distinct
+     * to their database property names. Defaults to false.
+     */
+    translateAliases?: boolean;
+  }
+}
diff --git a/backend/node_modules/mongoose/types/pipelinestage.d.ts b/backend/node_modules/mongoose/types/pipelinestage.d.ts
new file mode 100644
index 0000000..c709528
--- /dev/null
+++ b/backend/node_modules/mongoose/types/pipelinestage.d.ts
@@ -0,0 +1,332 @@
+declare module 'mongoose' {
+  /**
+     * [Stages reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/#aggregation-pipeline-stages)
+     */
+  export type PipelineStage =
+    | PipelineStage.AddFields
+    | PipelineStage.Bucket
+    | PipelineStage.BucketAuto
+    | PipelineStage.CollStats
+    | PipelineStage.Count
+    | PipelineStage.Densify
+    | PipelineStage.Documents
+    | PipelineStage.Facet
+    | PipelineStage.Fill
+    | PipelineStage.GeoNear
+    | PipelineStage.GraphLookup
+    | PipelineStage.Group
+    | PipelineStage.IndexStats
+    | PipelineStage.Limit
+    | PipelineStage.ListSessions
+    | PipelineStage.Lookup
+    | PipelineStage.Match
+    | PipelineStage.Merge
+    | PipelineStage.Out
+    | PipelineStage.PlanCacheStats
+    | PipelineStage.Project
+    | PipelineStage.Redact
+    | PipelineStage.ReplaceRoot
+    | PipelineStage.ReplaceWith
+    | PipelineStage.Sample
+    | PipelineStage.Search
+    | PipelineStage.SearchMeta
+    | PipelineStage.Set
+    | PipelineStage.SetWindowFields
+    | PipelineStage.Skip
+    | PipelineStage.Sort
+    | PipelineStage.SortByCount
+    | PipelineStage.UnionWith
+    | PipelineStage.Unset
+    | PipelineStage.Unwind
+    | PipelineStage.VectorSearch;
+
+  export namespace PipelineStage {
+    export interface AddFields {
+      /** [`$addFields` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/addFields/) */
+      $addFields: Record<string, AnyExpression>
+    }
+
+    export interface Bucket {
+      /** [`$bucket` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/bucket/) */
+      $bucket: {
+        groupBy: Expression;
+        boundaries: any[];
+        default?: any
+        output?: Record<string, AccumulatorOperator>
+      }
+    }
+
+    export interface BucketAuto {
+      /** [`$bucketAuto` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/bucketAuto/) */
+      $bucketAuto: {
+        groupBy: Expression | Record<string, Expression>;
+        buckets: number;
+        output?: Record<string, AccumulatorOperator>;
+        granularity?: 'R5' | 'R10' | 'R20' | 'R40' | 'R80' | '1-2-5' | 'E6' | 'E12' | 'E24' | 'E48' | 'E96' | 'E192' | 'POWERSOF2';
+      }
+    }
+
+    export interface CollStats {
+      /** [`$collStats` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/collStats/) */
+      $collStats: {
+        latencyStats?: { histograms?: boolean };
+        storageStats?: { scale?: number };
+        count?: Record<string | number | symbol, never>;
+        queryExecStats?: Record<string | number | symbol, never>;
+      }
+    }
+
+    export interface Count {
+      /** [`$count` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/count/) */
+      $count: string;
+    }
+
+    export interface Densify{
+      /** [`$densify` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/densify/) */
+      $densify: {
+        field: string,
+        partitionByFields?: string[],
+        range: {
+          step: number,
+          unit?: 'millisecond' | 'second' | 'minute' | 'hour' | 'day' | 'week' | 'month' | 'quarter' | 'year',
+          bounds: number[] | globalThis.Date[] | 'full' | 'partition'
+        }
+      }
+    }
+
+    export interface Documents {
+      /** [`$documents` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/documents/) */
+      $documents: Record<string, Expression>[]
+    }
+
+    export interface Fill {
+      /** [`$fill` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/fill/) */
+      $fill: {
+        partitionBy?: Expression,
+        partitionByFields?: string[],
+        sortBy?: Record<string, 1 | -1>,
+        output: Record<string, { value: Expression } | { method: 'linear' | 'locf' }>
+      }
+    }
+
+    export interface Facet {
+      /** [`$facet` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/facet/) */
+      $facet: Record<string, FacetPipelineStage[]>;
+    }
+
+    export type FacetPipelineStage = Exclude<PipelineStage, PipelineStage.CollStats | PipelineStage.Facet | PipelineStage.GeoNear | PipelineStage.IndexStats | PipelineStage.Out | PipelineStage.Merge | PipelineStage.PlanCacheStats>;
+
+    export interface GeoNear {
+      /** [`$geoNear` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/geoNear/) */
+      $geoNear: {
+        near: { type: 'Point'; coordinates: [number, number] } | [number, number];
+        distanceField: string;
+        distanceMultiplier?: number;
+        includeLocs?: string;
+        key?: string;
+        maxDistance?: number;
+        minDistance?: number;
+        query?: AnyObject;
+        spherical?: boolean;
+        /**
+         * Deprecated. Use only with MondoDB below 4.2 (removed in 4.2)
+         * @deprecated
+         */
+        num?: number;
+      }
+    }
+
+    export interface GraphLookup {
+      /** [`$graphLookup` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/graphLookup/) */
+      $graphLookup: {
+        from: string;
+        startWith: any
+        connectFromField: string;
+        connectToField: string;
+        as: string;
+        maxDepth?: number;
+        depthField?: string;
+        restrictSearchWithMatch?: AnyObject;
+      }
+    }
+
+    export interface Group {
+      /** [`$group` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/group) */
+      $group: { _id: any } | { [key: string]: AccumulatorOperator }
+    }
+
+    export interface IndexStats {
+      /** [`$indexStats` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/indexStats/) */
+      $indexStats: Record<string | number | symbol, never>;
+    }
+
+    export interface Limit {
+      /** [`$limit` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/limit/) */
+      $limit: number
+    }
+
+    export interface ListSessions {
+      /** [`$listSessions` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/listSessions/) */
+      $listSessions: { users?: { user: string; db: string }[] } | { allUsers?: true }
+    }
+
+    export interface Lookup {
+      /** [`$lookup` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/lookup/) */
+      $lookup: {
+        from: string
+        as: string
+        localField?: string
+        foreignField?: string
+        let?: Record<string, any>
+        pipeline?: Exclude<PipelineStage, PipelineStage.Merge | PipelineStage.Out>[]
+      }
+    }
+
+    export interface Match {
+      /** [`$match` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/match/) */
+      $match: FilterQuery<any>;
+    }
+
+    export interface Merge {
+      /** [`$merge` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/merge/) */
+      $merge: {
+        into: string | { db: string; coll: string }
+        on?: string | string[]
+        let?: Record<string, Expression>
+        whenMatched?: 'replace' | 'keepExisting' | 'merge' | 'fail' | Extract<PipelineStage, PipelineStage.AddFields | PipelineStage.Set | PipelineStage.Project | PipelineStage.Unset | PipelineStage.ReplaceRoot | PipelineStage.ReplaceWith>[]
+        whenNotMatched?: 'insert' | 'discard' | 'fail'
+      }
+    }
+
+    export interface Out {
+      /** [`$out` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/out/) */
+      $out: string | { db: string; coll: string }
+    }
+
+    export interface PlanCacheStats {
+      /** [`$planCacheStats` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/planCacheStats/) */
+      $planCacheStats: Record<string | number | symbol, never>
+    }
+
+    export interface Project {
+      /** [`$project` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/project/) */
+      $project: { [field: string]: AnyExpression | Expression | Project['$project'] }
+    }
+
+    export interface Redact {
+      /** [`$redact` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/redact/) */
+      $redact: Expression;
+    }
+
+    export interface ReplaceRoot {
+      /** [`$replaceRoot` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/replaceRoot/) */
+      $replaceRoot: { newRoot: AnyExpression }
+    }
+
+    export interface ReplaceWith {
+      /** [`$replaceWith` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/replaceWith/) */
+      $replaceWith: ObjectExpressionOperator | { [field: string]: Expression } | `$${string}`;
+    }
+
+    export interface Sample {
+      /** [`$sample` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/sample/) */
+      $sample: { size: number }
+    }
+
+    export interface Search {
+      /** [`$search` reference](https://www.mongodb.com/docs/atlas/atlas-search/query-syntax/) */
+      $search: {
+        index?: string;
+        highlight?: {
+          /** [`highlightPath` reference](https://docs.atlas.mongodb.com/atlas-search/path-construction/#multiple-field-search) */
+          path: string | string[] | { value: string, multi: string };
+          maxCharsToExamine?: number;
+          maxNumPassages?: number;
+        };
+        [operator: string]: any;
+      }
+    }
+
+    export interface SearchMeta {
+      /** [`$searchMeta` reference](https://www.mongodb.com/docs/atlas/atlas-search/query-syntax/#mongodb-pipeline-pipe.-searchMeta) */
+      $searchMeta: {
+        index?: string;
+        highlight?: {
+          /** [`highlightPath` reference](https://docs.atlas.mongodb.com/atlas-search/path-construction/#multiple-field-search) */
+          path: string | string[] | { value: string, multi: string };
+          maxCharsToExamine?: number;
+          maxNumPassages?: number;
+        };
+        [operator: string]: any;
+      }
+    }
+
+    export interface Set {
+      /** [`$set` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/set/) */
+      $set: Record<string, AnyExpression | any>
+    }
+
+    export interface SetWindowFields {
+      /** [`$setWindowFields` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/setWindowFields/) */
+      $setWindowFields: {
+        partitionBy?: any
+        sortBy?: Record<string, 1 | -1>
+        output: Record<
+        string,
+        WindowOperator & {
+          window?: {
+            documents?: [string | number, string | number]
+            range?: [string | number, string | number]
+            unit?: 'year' | 'quarter' | 'month' | 'week' | 'day' | 'hour' | 'minute' | 'second' | 'millisecond'
+          }
+        }
+        >
+      }
+    }
+
+    export interface Skip {
+      /** [`$skip` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/skip/) */
+      $skip: number
+    }
+
+    export interface Sort {
+      /** [`$sort` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/sort/) */
+      $sort: Record<string, 1 | -1 | Expression.Meta>
+    }
+
+    export interface SortByCount {
+      /** [`$sortByCount` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/sortByCount/) */
+      $sortByCount: Expression;
+    }
+
+    export interface UnionWith {
+      /** [`$unionWith` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/unionWith/) */
+      $unionWith:
+      | string
+      | { coll: string; pipeline?: Exclude<PipelineStage, PipelineStage.Out | PipelineStage.Merge>[] }
+      | { coll?: string; pipeline: Exclude<PipelineStage, PipelineStage.Out | PipelineStage.Merge>[] }
+    }
+
+    export interface Unset {
+      /** [`$unset` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/unset/) */
+      $unset: string | string[]
+    }
+
+    export interface Unwind {
+      /** [`$unwind` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/unwind/) */
+      $unwind: string | { path: string; includeArrayIndex?: string; preserveNullAndEmptyArrays?: boolean }
+    }
+    export interface VectorSearch {
+      /** [`$vectorSearch` reference](https://www.mongodb.com/docs/atlas/atlas-vector-search/vector-search-stage/) */
+      $vectorSearch: {
+        index: string,
+        path: string,
+        queryVector: number[],
+        numCandidates: number,
+        limit: number,
+        filter?: Expression,
+      }
+    }
+
+  }
+}
diff --git a/backend/node_modules/mongoose/types/populate.d.ts b/backend/node_modules/mongoose/types/populate.d.ts
new file mode 100644
index 0000000..8517c15
--- /dev/null
+++ b/backend/node_modules/mongoose/types/populate.d.ts
@@ -0,0 +1,47 @@
+declare module 'mongoose' {
+
+  /**
+   * Reference another Model
+   */
+  type PopulatedDoc<
+    PopulatedType,
+    RawId extends RefType = (PopulatedType extends { _id?: RefType; } ? NonNullable<PopulatedType['_id']> : Types.ObjectId) | undefined
+  > = PopulatedType | RawId;
+
+  interface PopulateOptions {
+    /** space delimited path(s) to populate */
+    path: string;
+    /** fields to select */
+    select?: any;
+    /** query conditions to match */
+    match?: any;
+    /** optional model to use for population */
+    model?: string | Model<any>;
+    /** optional query options like sort, limit, etc */
+    options?: QueryOptions;
+    /** correct limit on populated array */
+    perDocumentLimit?: number;
+    /** optional boolean, set to `false` to allow populating paths that aren't in the schema */
+    strictPopulate?: boolean;
+    /** deep populate */
+    populate?: string | PopulateOptions | (string | PopulateOptions)[];
+    /**
+     * If true Mongoose will always set `path` to a document, or `null` if no document was found.
+     * If false Mongoose will always set `path` to an array, which will be empty if no documents are found.
+     * Inferred from schema by default.
+     */
+    justOne?: boolean;
+    /** transform function to call on every populated doc */
+    transform?: (doc: any, id: any) => any;
+    /** Overwrite the schema-level local field to populate on if this is a populated virtual. */
+    localField?: string;
+    /** Overwrite the schema-level foreign field to populate on if this is a populated virtual. */
+    foreignField?: string;
+    /** Set to `false` to prevent Mongoose from repopulating paths that are already populated */
+    forceRepopulate?: boolean;
+  }
+
+  interface PopulateOption {
+    populate?: string | string[] | PopulateOptions | PopulateOptions[];
+  }
+}
diff --git a/backend/node_modules/mongoose/types/query.d.ts b/backend/node_modules/mongoose/types/query.d.ts
new file mode 100644
index 0000000..fbebf1b
--- /dev/null
+++ b/backend/node_modules/mongoose/types/query.d.ts
@@ -0,0 +1,889 @@
+declare module 'mongoose' {
+  import mongodb = require('mongodb');
+
+  export type Condition<T> = T | QuerySelector<T | any> | any;
+
+  /**
+   * Filter query to select the documents that match the query
+   * @example
+   * ```js
+   * { age: { $gte: 30 } }
+   * ```
+   */
+  type RootFilterQuery<T> = FilterQuery<T> | Query<any, any> | Types.ObjectId;
+
+  type FilterQuery<T> = {
+    [P in keyof T]?: Condition<T[P]>;
+  } & RootQuerySelector<T> & { _id?: Condition<string>; };
+
+  type MongooseBaseQueryOptionKeys =
+    | 'context'
+    | 'multipleCastError'
+    | 'overwriteDiscriminatorKey'
+    | 'overwriteImmutable'
+    | 'populate'
+    | 'runValidators'
+    | 'sanitizeProjection'
+    | 'sanitizeFilter'
+    | 'schemaLevelProjections'
+    | 'setDefaultsOnInsert'
+    | 'strict'
+    | 'strictQuery'
+    | 'translateAliases';
+
+  type MongooseQueryOptions<
+    DocType = unknown,
+    Keys extends keyof QueryOptions<DocType> = MongooseBaseQueryOptionKeys | 'timestamps' | 'lean'
+  > = Pick<QueryOptions<DocType>, Keys> & {
+    [other: string]: any;
+  };
+
+  type MongooseBaseQueryOptions<DocType = unknown> = MongooseQueryOptions<DocType, MongooseBaseQueryOptionKeys>;
+
+  type MongooseUpdateQueryOptions<DocType = unknown> = MongooseQueryOptions<
+    DocType,
+    MongooseBaseQueryOptionKeys | 'timestamps'
+  >;
+
+  type ProjectionFields<DocType> = { [Key in keyof DocType]?: any } & Record<string, any>;
+
+  type QueryWithHelpers<
+    ResultType,
+    DocType,
+    THelpers = {},
+    RawDocType = DocType,
+    QueryOp = 'find',
+    TDocOverrides = Record<string, never>
+  > = Query<ResultType, DocType, THelpers, RawDocType, QueryOp, TDocOverrides> & THelpers;
+
+  type QuerySelector<T> = {
+    // Comparison
+    $eq?: T;
+    $gt?: T;
+    $gte?: T;
+    $in?: [T] extends AnyArray<any> ? Unpacked<T>[] : T[];
+    $lt?: T;
+    $lte?: T;
+    $ne?: T;
+    $nin?: [T] extends AnyArray<any> ? Unpacked<T>[] : T[];
+    // Logical
+    $not?: T extends string ? QuerySelector<T> | RegExp : QuerySelector<T>;
+    // Element
+    /**
+     * When `true`, `$exists` matches the documents that contain the field,
+     * including documents where the field value is null.
+     */
+    $exists?: boolean;
+    $type?: string | number;
+    // Evaluation
+    $expr?: any;
+    $jsonSchema?: any;
+    $mod?: T extends number ? [number, number] : never;
+    $regex?: T extends string ? RegExp | string : never;
+    $options?: T extends string ? string : never;
+    // Geospatial
+    // TODO: define better types for geo queries
+    $geoIntersects?: { $geometry: object };
+    $geoWithin?: object;
+    $near?: object;
+    $nearSphere?: object;
+    $maxDistance?: number;
+    // Array
+    // TODO: define better types for $all and $elemMatch
+    $all?: T extends AnyArray<any> ? any[] : never;
+    $elemMatch?: T extends AnyArray<any> ? object : never;
+    $size?: T extends AnyArray<any> ? number : never;
+    // Bitwise
+    $bitsAllClear?: number | mongodb.Binary | number[];
+    $bitsAllSet?: number | mongodb.Binary | number[];
+    $bitsAnyClear?: number | mongodb.Binary | number[];
+    $bitsAnySet?: number | mongodb.Binary | number[];
+  };
+
+  type RootQuerySelector<T> = {
+    /** @see https://www.mongodb.com/docs/manual/reference/operator/query/and/#op._S_and */
+    $and?: Array<FilterQuery<T>>;
+    /** @see https://www.mongodb.com/docs/manual/reference/operator/query/nor/#op._S_nor */
+    $nor?: Array<FilterQuery<T>>;
+    /** @see https://www.mongodb.com/docs/manual/reference/operator/query/or/#op._S_or */
+    $or?: Array<FilterQuery<T>>;
+    /** @see https://www.mongodb.com/docs/manual/reference/operator/query/text */
+    $text?: {
+      $search: string;
+      $language?: string;
+      $caseSensitive?: boolean;
+      $diacriticSensitive?: boolean;
+    };
+    /** @see https://www.mongodb.com/docs/manual/reference/operator/query/where/#op._S_where */
+    $where?: string | Function;
+    /** @see https://www.mongodb.com/docs/manual/reference/operator/query/comment/#op._S_comment */
+    $comment?: string;
+    $expr?: Record<string, any>;
+    // this will mark all unrecognized properties as any (including nested queries)
+    [key: string]: any;
+  };
+
+  interface QueryTimestampsConfig {
+    createdAt?: boolean;
+    updatedAt?: boolean;
+  }
+
+  interface QueryOptions<DocType = unknown> extends
+    PopulateOption,
+    SessionOption {
+    arrayFilters?: { [key: string]: any }[];
+    batchSize?: number;
+    collation?: mongodb.CollationOptions;
+    comment?: any;
+    context?: string;
+    explain?: mongodb.ExplainVerbosityLike;
+    fields?: any | string;
+    hint?: mongodb.Hint;
+    /**
+     * If truthy, mongoose will return the document as a plain JavaScript object rather than a mongoose document.
+     */
+    lean?: boolean | Record<string, any>;
+    limit?: number;
+    maxTimeMS?: number;
+    multi?: boolean;
+    multipleCastError?: boolean;
+    /**
+     * By default, `findOneAndUpdate()` returns the document as it was **before**
+     * `update` was applied. If you set `new: true`, `findOneAndUpdate()` will
+     * instead give you the object after `update` was applied.
+     */
+    new?: boolean;
+
+    overwriteDiscriminatorKey?: boolean;
+    /**
+     * Mongoose removes updated immutable properties from `update` by default (excluding $setOnInsert).
+     * Set `overwriteImmutable` to `true` to allow updating immutable properties using other update operators.
+     */
+    overwriteImmutable?: boolean;
+    projection?: ProjectionType<DocType>;
+    /**
+     * if true, returns the full ModifyResult rather than just the document
+     */
+    includeResultMetadata?: boolean;
+    readPreference?: string | mongodb.ReadPreferenceMode;
+    /**
+     * An alias for the `new` option. `returnOriginal: false` is equivalent to `new: true`.
+     */
+    returnOriginal?: boolean;
+    /**
+     * Another alias for the `new` option. `returnOriginal` is deprecated so this should be used.
+     */
+    returnDocument?: 'before' | 'after';
+    /**
+     * Set to true to enable `update validators`
+     * (https://mongoosejs.com/docs/validation.html#update-validators). Defaults to false.
+     */
+    runValidators?: boolean;
+    /* Set to `true` to automatically sanitize potentially unsafe user-generated query projections */
+    sanitizeProjection?: boolean;
+    /**
+     * Set to `true` to automatically sanitize potentially unsafe query filters by stripping out query selectors that
+     * aren't explicitly allowed using `mongoose.trusted()`.
+     */
+    sanitizeFilter?: boolean;
+    /**
+     * Enable or disable schema level projections for this query. Enabled by default.
+     * Set to `false` to include fields with `select: false` in the query result by default.
+     */
+    schemaLevelProjections?: boolean;
+    setDefaultsOnInsert?: boolean;
+    skip?: number;
+    sort?: any;
+    /** overwrites the schema's strict mode option */
+    strict?: boolean | string;
+    /**
+     * equal to `strict` by default, may be `false`, `true`, or `'throw'`. Sets the default
+     * [strictQuery](https://mongoosejs.com/docs/guide.html#strictQuery) mode for schemas.
+     */
+    strictQuery?: boolean | 'throw';
+    tailable?: number;
+    /**
+     * If set to `false` and schema-level timestamps are enabled,
+     * skip timestamps for this update. Note that this allows you to overwrite
+     * timestamps. Does nothing if schema-level timestamps are not set.
+     */
+    timestamps?: boolean | QueryTimestampsConfig;
+    /**
+     * If `true`, convert any aliases in filter, projection, update, and distinct
+     * to their database property names. Defaults to false.
+     */
+    translateAliases?: boolean;
+    upsert?: boolean;
+    useBigInt64?: boolean;
+    writeConcern?: mongodb.WriteConcern;
+
+    [other: string]: any;
+  }
+
+  type QueryOpThatReturnsDocument = 'find' | 'findOne' | 'findOneAndUpdate' | 'findOneAndReplace' | 'findOneAndDelete';
+
+  type GetLeanResultType<RawDocType, ResultType, QueryOp> = QueryOp extends QueryOpThatReturnsDocument
+    ? (ResultType extends any[] ? Default__v<Require_id<FlattenMaps<BufferToBinary<RawDocType>>>>[] : Default__v<Require_id<FlattenMaps<BufferToBinary<RawDocType>>>>)
+    : ResultType;
+
+  type MergePopulatePaths<RawDocType, ResultType, QueryOp, Paths, TQueryHelpers, TDocOverrides = Record<string, never>> = QueryOp extends QueryOpThatReturnsDocument
+    ? ResultType extends null
+      ? ResultType
+      : ResultType extends (infer U)[]
+        ? U extends Document
+          ? HydratedDocument<MergeType<RawDocType, Paths>, TDocOverrides, TQueryHelpers>[]
+          : (MergeType<U, Paths>)[]
+        : ResultType extends Document
+          ? HydratedDocument<MergeType<RawDocType, Paths>, TDocOverrides, TQueryHelpers>
+          : MergeType<ResultType, Paths>
+    : MergeType<ResultType, Paths>;
+
+  class Query<ResultType, DocType, THelpers = {}, RawDocType = unknown, QueryOp = 'find', TDocOverrides = Record<string, never>> implements SessionOperation {
+    _mongooseOptions: MongooseQueryOptions<DocType>;
+
+    /**
+     * Returns a wrapper around a [mongodb driver cursor](https://mongodb.github.io/node-mongodb-native/4.9/classes/FindCursor.html).
+     * A QueryCursor exposes a Streams3 interface, as well as a `.next()` function.
+     * This is equivalent to calling `.cursor()` with no arguments.
+     */
+    [Symbol.asyncIterator](): AsyncIterableIterator<Unpacked<ResultType>>;
+
+    /** Executes the query */
+    exec(): Promise<ResultType>;
+
+    $where(argument: string | Function): QueryWithHelpers<
+      DocType[],
+      DocType,
+      THelpers,
+      RawDocType,
+      QueryOp,
+      TDocOverrides
+    >;
+
+    /** Specifies an `$all` query condition. When called with one argument, the most recent path passed to `where()` is used. */
+    all(path: string, val: Array<any>): this;
+    all(val: Array<any>): this;
+
+    /** Sets the allowDiskUse option for the query (ignored for < 4.4.0) */
+    allowDiskUse(value: boolean): this;
+
+    /** Specifies arguments for an `$and` condition. */
+    and(array: FilterQuery<RawDocType>[]): this;
+
+    /** Specifies the batchSize option. */
+    batchSize(val: number): this;
+
+    /** Specifies a `$box` condition */
+    box(lower: number[], upper: number[]): this;
+    box(val: any): this;
+
+    /**
+     * Casts this query to the schema of `model`.
+     *
+     * @param {Model} [model] the model to cast to. If not set, defaults to `this.model`
+     * @param {Object} [obj] If not set, defaults to this query's conditions
+     * @return {Object} the casted `obj`
+     */
+    cast(model?: Model<any, THelpers> | null, obj?: any): any;
+
+    /**
+     * Executes the query returning a `Promise` which will be
+     * resolved with either the doc(s) or rejected with the error.
+     * Like `.then()`, but only takes a rejection handler.
+     */
+    catch: Promise<ResultType>['catch'];
+
+    /**
+     * Executes the query returning a `Promise` which will be
+     * resolved with `.finally()` chained.
+     */
+    finally: Promise<ResultType>['finally'];
+
+    // Returns a string representation of this query.
+    [Symbol.toStringTag]: string;
+
+    /** Specifies a `$center` or `$centerSphere` condition. */
+    circle(path: string, area: any): this;
+    circle(area: any): this;
+
+    /** Make a copy of this query so you can re-execute it. */
+    clone(): this;
+
+    /** Adds a collation to this op (MongoDB 3.4 and up) */
+    collation(value: mongodb.CollationOptions): this;
+
+    /** Specifies the `comment` option. */
+    comment(val: string): this;
+
+    /** Specifies this query as a `countDocuments` query. */
+    countDocuments(
+      criteria?: RootFilterQuery<RawDocType>,
+      options?: QueryOptions<DocType>
+    ): QueryWithHelpers<number, DocType, THelpers, RawDocType, 'countDocuments', TDocOverrides>;
+
+    /**
+     * Returns a wrapper around a [mongodb driver cursor](https://mongodb.github.io/node-mongodb-native/4.9/classes/FindCursor.html).
+     * A QueryCursor exposes a Streams3 interface, as well as a `.next()` function.
+     */
+    cursor(options?: QueryOptions<DocType>): Cursor<Unpacked<ResultType>, QueryOptions<DocType>>;
+
+    /**
+     * Declare and/or execute this query as a `deleteMany()` operation. Works like
+     * remove, except it deletes _every_ document that matches `filter` in the
+     * collection, regardless of the value of `single`.
+     */
+    deleteMany(
+      filter?: RootFilterQuery<RawDocType>,
+      options?: QueryOptions<DocType>
+    ): QueryWithHelpers<any, DocType, THelpers, RawDocType, 'deleteMany', TDocOverrides>;
+    deleteMany(filter: RootFilterQuery<RawDocType>): QueryWithHelpers<
+      any,
+      DocType,
+      THelpers,
+      RawDocType,
+      'deleteMany',
+      TDocOverrides
+    >;
+    deleteMany(): QueryWithHelpers<any, DocType, THelpers, RawDocType, 'deleteMany', TDocOverrides>;
+
+    /**
+     * Declare and/or execute this query as a `deleteOne()` operation. Works like
+     * remove, except it deletes at most one document regardless of the `single`
+     * option.
+     */
+    deleteOne(
+      filter?: RootFilterQuery<RawDocType>,
+      options?: QueryOptions<DocType>
+    ): QueryWithHelpers<any, DocType, THelpers, RawDocType, 'deleteOne', TDocOverrides>;
+    deleteOne(filter: RootFilterQuery<RawDocType>): QueryWithHelpers<
+      any,
+      DocType,
+      THelpers,
+      RawDocType,
+      'deleteOne',
+      TDocOverrides
+    >;
+    deleteOne(): QueryWithHelpers<any, DocType, THelpers, RawDocType, 'deleteOne', TDocOverrides>;
+
+    /** Creates a `distinct` query: returns the distinct values of the given `field` that match `filter`. */
+    distinct<DocKey extends string, ResultType = unknown>(
+      field: DocKey,
+      filter?: RootFilterQuery<RawDocType>,
+      options?: QueryOptions<DocType>
+    ): QueryWithHelpers<
+      Array<
+        DocKey extends keyof WithLevel1NestedPaths<DocType>
+          ? WithoutUndefined<Unpacked<WithLevel1NestedPaths<DocType>[DocKey]>>
+          : ResultType
+      >,
+      DocType,
+      THelpers,
+      RawDocType,
+      'distinct',
+      TDocOverrides
+    >;
+
+    /** Specifies a `$elemMatch` query condition. When called with one argument, the most recent path passed to `where()` is used. */
+    elemMatch<K = string>(path: K, val: any): this;
+    elemMatch(val: Function | any): this;
+
+    /**
+     * Gets/sets the error flag on this query. If this flag is not null or
+     * undefined, the `exec()` promise will reject without executing.
+     */
+    error(): NativeError | null;
+    error(val: NativeError | null): this;
+
+    /** Specifies the complementary comparison value for paths specified with `where()` */
+    equals(val: any): this;
+
+    /** Creates a `estimatedDocumentCount` query: counts the number of documents in the collection. */
+    estimatedDocumentCount(options?: QueryOptions<DocType>): QueryWithHelpers<
+      number,
+      DocType,
+      THelpers,
+      RawDocType,
+      'estimatedDocumentCount',
+      TDocOverrides
+    >;
+
+    /** Specifies a `$exists` query condition. When called with one argument, the most recent path passed to `where()` is used. */
+    exists<K = string>(path: K, val: boolean): this;
+    exists(val: boolean): this;
+
+    /**
+     * Sets the [`explain` option](https://www.mongodb.com/docs/manual/reference/method/cursor.explain/),
+     * which makes this query return detailed execution stats instead of the actual
+     * query result. This method is useful for determining what index your queries
+     * use.
+     */
+    explain(verbose?: mongodb.ExplainVerbosityLike): this;
+
+    /** Creates a `find` query: gets a list of documents that match `filter`. */
+    find(
+      filter: RootFilterQuery<RawDocType>,
+      projection?: ProjectionType<RawDocType> | null,
+      options?: QueryOptions<DocType> | null
+    ): QueryWithHelpers<Array<DocType>, DocType, THelpers, RawDocType, 'find', TDocOverrides>;
+    find(
+      filter: RootFilterQuery<RawDocType>,
+      projection?: ProjectionType<RawDocType> | null
+    ): QueryWithHelpers<Array<DocType>, DocType, THelpers, RawDocType, 'find', TDocOverrides>;
+    find(
+      filter: RootFilterQuery<RawDocType>
+    ): QueryWithHelpers<Array<DocType>, DocType, THelpers, RawDocType, 'find', TDocOverrides>;
+    find(): QueryWithHelpers<Array<DocType>, DocType, THelpers, RawDocType, 'find', TDocOverrides>;
+
+    /** Declares the query a findOne operation. When executed, returns the first found document. */
+    findOne(
+      filter?: RootFilterQuery<RawDocType>,
+      projection?: ProjectionType<RawDocType> | null,
+      options?: QueryOptions<DocType> | null
+    ): QueryWithHelpers<DocType | null, DocType, THelpers, RawDocType, 'findOne', TDocOverrides>;
+    findOne(
+      filter?: RootFilterQuery<RawDocType>,
+      projection?: ProjectionType<RawDocType> | null
+    ): QueryWithHelpers<DocType | null, DocType, THelpers, RawDocType, 'findOne', TDocOverrides>;
+    findOne(
+      filter?: RootFilterQuery<RawDocType>
+    ): QueryWithHelpers<DocType | null, DocType, THelpers, RawDocType, 'findOne', TDocOverrides>;
+
+    /** Creates a `findOneAndDelete` query: atomically finds the given document, deletes it, and returns the document as it was before deletion. */
+    findOneAndDelete(
+      filter?: RootFilterQuery<RawDocType>,
+      options?: QueryOptions<DocType> | null
+    ): QueryWithHelpers<DocType | null, DocType, THelpers, RawDocType, 'findOneAndDelete'>;
+
+    /** Creates a `findOneAndUpdate` query: atomically find the first document that matches `filter` and apply `update`. */
+    findOneAndUpdate(
+      filter: RootFilterQuery<RawDocType>,
+      update: UpdateQuery<RawDocType>,
+      options: QueryOptions<DocType> & { includeResultMetadata: true }
+    ): QueryWithHelpers<ModifyResult<DocType>, DocType, THelpers, RawDocType, 'findOneAndUpdate', TDocOverrides>;
+    findOneAndUpdate(
+      filter: RootFilterQuery<RawDocType>,
+      update: UpdateQuery<RawDocType>,
+      options: QueryOptions<DocType> & { upsert: true } & ReturnsNewDoc
+    ): QueryWithHelpers<DocType, DocType, THelpers, RawDocType, 'findOneAndUpdate', TDocOverrides>;
+    findOneAndUpdate(
+      filter?: RootFilterQuery<RawDocType>,
+      update?: UpdateQuery<RawDocType>,
+      options?: QueryOptions<DocType> | null
+    ): QueryWithHelpers<DocType | null, DocType, THelpers, RawDocType, 'findOneAndUpdate', TDocOverrides>;
+
+    /** Declares the query a findById operation. When executed, returns the document with the given `_id`. */
+    findById(
+      id: mongodb.ObjectId | any,
+      projection?: ProjectionType<RawDocType> | null,
+      options?: QueryOptions<DocType> | null
+    ): QueryWithHelpers<DocType | null, DocType, THelpers, RawDocType, 'findOne', TDocOverrides>;
+    findById(
+      id: mongodb.ObjectId | any,
+      projection?: ProjectionType<RawDocType> | null
+    ): QueryWithHelpers<DocType | null, DocType, THelpers, RawDocType, 'findOne', TDocOverrides>;
+    findById(
+      id: mongodb.ObjectId | any
+    ): QueryWithHelpers<DocType | null, DocType, THelpers, RawDocType, 'findOne', TDocOverrides>;
+
+    /** Creates a `findByIdAndDelete` query, filtering by the given `_id`. */
+    findByIdAndDelete(
+      id: mongodb.ObjectId | any,
+      options: QueryOptions<DocType> & { includeResultMetadata: true }
+    ): QueryWithHelpers<ModifyResult<DocType>, DocType, THelpers, RawDocType, 'findOneAndDelete', TDocOverrides>;
+    findByIdAndDelete(
+      id?: mongodb.ObjectId | any,
+      options?: QueryOptions<DocType> | null
+    ): QueryWithHelpers<DocType | null, DocType, THelpers, RawDocType, 'findOneAndDelete', TDocOverrides>;
+
+    /** Creates a `findOneAndUpdate` query, filtering by the given `_id`. */
+    findByIdAndUpdate(
+      id: mongodb.ObjectId | any,
+      update: UpdateQuery<RawDocType>,
+      options: QueryOptions<DocType> & { includeResultMetadata: true }
+    ): QueryWithHelpers<any, DocType, THelpers, RawDocType, 'findOneAndUpdate', TDocOverrides>;
+    findByIdAndUpdate(
+      id: mongodb.ObjectId | any,
+      update: UpdateQuery<RawDocType>,
+      options: QueryOptions<DocType> & { upsert: true } & ReturnsNewDoc
+    ): QueryWithHelpers<DocType, DocType, THelpers, RawDocType, 'findOneAndUpdate', TDocOverrides>;
+    findByIdAndUpdate(
+      id?: mongodb.ObjectId | any,
+      update?: UpdateQuery<RawDocType>,
+      options?: QueryOptions<DocType> | null
+    ): QueryWithHelpers<DocType | null, DocType, THelpers, RawDocType, 'findOneAndUpdate', TDocOverrides>;
+    findByIdAndUpdate(
+      id: mongodb.ObjectId | any,
+      update: UpdateQuery<RawDocType>
+    ): QueryWithHelpers<DocType | null, DocType, THelpers, RawDocType, 'findOneAndUpdate', TDocOverrides>;
+
+    /** Specifies a `$geometry` condition */
+    geometry(object: { type: string, coordinates: any[] }): this;
+
+    /**
+     * For update operations, returns the value of a path in the update's `$set`.
+     * Useful for writing getters/setters that can work with both update operations
+     * and `save()`.
+     */
+    get(path: string): any;
+
+    /** Returns the current query filter (also known as conditions) as a POJO. */
+    getFilter(): FilterQuery<RawDocType>;
+
+    /** Gets query options. */
+    getOptions(): QueryOptions<DocType>;
+
+    /** Gets a list of paths to be populated by this query */
+    getPopulatedPaths(): Array<string>;
+
+    /** Returns the current query filter. Equivalent to `getFilter()`. */
+    getQuery(): FilterQuery<RawDocType>;
+
+    /** Returns the current update operations as a JSON object. */
+    getUpdate(): UpdateQuery<DocType> | UpdateWithAggregationPipeline | null;
+
+    /** Specifies a `$gt` query condition. When called with one argument, the most recent path passed to `where()` is used. */
+    gt<K = string>(path: K, val: any): this;
+    gt(val: number): this;
+
+    /** Specifies a `$gte` query condition. When called with one argument, the most recent path passed to `where()` is used. */
+    gte<K = string>(path: K, val: any): this;
+    gte(val: number): this;
+
+    /** Sets query hints. */
+    hint(val: any): this;
+
+    /** Specifies an `$in` query condition. When called with one argument, the most recent path passed to `where()` is used. */
+    in<K = string>(path: K, val: any[]): this;
+    in(val: Array<any>): this;
+
+    /** Declares an intersects query for `geometry()`. */
+    intersects(arg?: any): this;
+
+    /** Requests acknowledgement that this operation has been persisted to MongoDB's on-disk journal. */
+    j(val: boolean | null): this;
+
+    /** Sets the lean option. */
+    lean(
+      val?: boolean | any
+    ): QueryWithHelpers<
+      ResultType extends null
+        ? GetLeanResultType<RawDocType, ResultType, QueryOp> | null
+        : GetLeanResultType<RawDocType, ResultType, QueryOp>,
+      DocType,
+      THelpers,
+      RawDocType,
+      QueryOp,
+      TDocOverrides
+      >;
+    lean<LeanResultType>(
+      val?: boolean | any
+    ): QueryWithHelpers<
+      ResultType extends null
+        ? LeanResultType | null
+        : LeanResultType,
+      DocType,
+      THelpers,
+      RawDocType,
+      QueryOp,
+      TDocOverrides
+      >;
+
+    /** Specifies the maximum number of documents the query will return. */
+    limit(val: number): this;
+
+    /** Specifies a `$lt` query condition. When called with one argument, the most recent path passed to `where()` is used. */
+    lt<K = string>(path: K, val: any): this;
+    lt(val: number): this;
+
+    /** Specifies a `$lte` query condition. When called with one argument, the most recent path passed to `where()` is used. */
+    lte<K = string>(path: K, val: any): this;
+    lte(val: number): this;
+
+    /**
+     * Runs a function `fn` and treats the return value of `fn` as the new value
+     * for the query to resolve to.
+     */
+    transform<MappedType>(fn: (doc: ResultType) => MappedType): QueryWithHelpers<MappedType, DocType, THelpers, RawDocType, QueryOp, TDocOverrides>;
+
+    /** Specifies an `$maxDistance` query condition. When called with one argument, the most recent path passed to `where()` is used. */
+    maxDistance(path: string, val: number): this;
+    maxDistance(val: number): this;
+
+    /**
+     * Sets the [maxTimeMS](https://www.mongodb.com/docs/manual/reference/method/cursor.maxTimeMS/)
+     * option. This will tell the MongoDB server to abort if the query or write op
+     * has been running for more than `ms` milliseconds.
+     */
+    maxTimeMS(ms: number): this;
+
+    /** Merges another Query or conditions object into this one. */
+    merge(source: RootFilterQuery<RawDocType>): this;
+
+    /** Specifies a `$mod` condition, filters documents for documents whose `path` property is a number that is equal to `remainder` modulo `divisor`. */
+    mod<K = string>(path: K, val: number): this;
+    mod(val: Array<number>): this;
+
+    /** The model this query was created from */
+    model: Model<any>; // Can't use DocType, causes "Type instantiation is excessively deep"
+
+    /**
+     * Getter/setter around the current mongoose-specific options for this query
+     * Below are the current Mongoose-specific options.
+     */
+    mongooseOptions(val?: MongooseQueryOptions): MongooseQueryOptions;
+
+    /** Specifies a `$ne` query condition. When called with one argument, the most recent path passed to `where()` is used. */
+    ne<K = string>(path: K, val: any): this;
+    ne(val: any): this;
+
+    /** Specifies a `$near` or `$nearSphere` condition */
+    near<K = string>(path: K, val: any): this;
+    near(val: any): this;
+
+    /** Specifies an `$nin` query condition. When called with one argument, the most recent path passed to `where()` is used. */
+    nin<K = string>(path: K, val: any[]): this;
+    nin(val: Array<any>): this;
+
+    /** Specifies arguments for an `$nor` condition. */
+    nor(array: Array<FilterQuery<RawDocType>>): this;
+
+    /** Specifies arguments for an `$or` condition. */
+    or(array: Array<FilterQuery<RawDocType>>): this;
+
+    /**
+     * Make this query throw an error if no documents match the given `filter`.
+     * This is handy for integrating with async/await, because `orFail()` saves you
+     * an extra `if` statement to check if no document was found.
+     */
+    orFail(err?: NativeError | (() => NativeError)): QueryWithHelpers<NonNullable<ResultType>, DocType, THelpers, RawDocType, QueryOp, TDocOverrides>;
+
+    /** Specifies a `$polygon` condition */
+    polygon(path: string, ...coordinatePairs: number[][]): this;
+    polygon(...coordinatePairs: number[][]): this;
+
+    /** Specifies paths which should be populated with other documents. */
+    populate(
+      path: string | string[],
+      select?: string | any,
+      model?: string | Model<any, THelpers>,
+      match?: any
+    ): QueryWithHelpers<
+      ResultType,
+      DocType,
+      THelpers,
+      RawDocType,
+      QueryOp,
+      TDocOverrides
+    >;
+    populate(
+      options: PopulateOptions | (PopulateOptions | string)[]
+    ): QueryWithHelpers<
+      ResultType,
+      DocType,
+      THelpers,
+      RawDocType,
+      QueryOp,
+      TDocOverrides
+    >;
+    populate<Paths>(
+      path: string | string[],
+      select?: string | any,
+      model?: string | Model<any, THelpers>,
+      match?: any
+    ): QueryWithHelpers<
+      MergePopulatePaths<RawDocType, ResultType, QueryOp, Paths, THelpers, TDocOverrides>,
+      DocType,
+      THelpers,
+      UnpackedIntersection<RawDocType, Paths>,
+      QueryOp,
+      TDocOverrides
+    >;
+    populate<Paths>(
+      options: PopulateOptions | (PopulateOptions | string)[]
+    ): QueryWithHelpers<
+      MergePopulatePaths<RawDocType, ResultType, QueryOp, Paths, THelpers, TDocOverrides>,
+      DocType,
+      THelpers,
+      UnpackedIntersection<RawDocType, Paths>,
+      QueryOp,
+      TDocOverrides
+    >;
+
+    /** Add pre middleware to this query instance. Doesn't affect other queries. */
+    pre(fn: Function): this;
+
+    /** Add post middleware to this query instance. Doesn't affect other queries. */
+    post(fn: Function): this;
+
+    /** Get/set the current projection (AKA fields). Pass `null` to remove the current projection. */
+    projection(fields?: ProjectionFields<DocType> | string): ProjectionFields<DocType>;
+    projection(fields: null): null;
+    projection(): ProjectionFields<DocType> | null;
+
+    /** Determines the MongoDB nodes from which to read. */
+    read(mode: string | mongodb.ReadPreferenceMode, tags?: any[]): this;
+
+    /** Sets the readConcern option for the query. */
+    readConcern(level: string): this;
+
+    /** Specifies a `$regex` query condition. When called with one argument, the most recent path passed to `where()` is used. */
+    regex<K = string>(path: K, val: RegExp): this;
+    regex(val: string | RegExp): this;
+
+    /**
+     * Declare and/or execute this query as a replaceOne() operation. Same as
+     * `update()`, except MongoDB will replace the existing document and will
+     * not accept any [atomic](https://www.mongodb.com/docs/manual/tutorial/model-data-for-atomic-operations/#pattern) operators (`$set`, etc.)
+     */
+    replaceOne(
+      filter?: RootFilterQuery<RawDocType>,
+      replacement?: DocType | AnyObject,
+      options?: QueryOptions<DocType> | null
+    ): QueryWithHelpers<any, DocType, THelpers, RawDocType, 'replaceOne', TDocOverrides>;
+
+    /**
+     * Sets this query's `sanitizeProjection` option. With `sanitizeProjection()`, you can pass potentially untrusted user data to `.select()`.
+     */
+    sanitizeProjection(value: boolean): this;
+
+    /**
+     * Enable or disable schema level projections for this query. Enabled by default.
+     * Set to `false` to include fields with `select: false` in the query result by default.
+     */
+    schemaLevelProjections(value: boolean): this;
+
+    /** Specifies which document fields to include or exclude (also known as the query "projection") */
+    select<RawDocTypeOverride extends { [P in keyof RawDocType]?: any } = {}>(
+      arg: string | string[] | Record<string, number | boolean | string | object>
+    ): QueryWithHelpers<
+      IfEquals<
+        RawDocTypeOverride,
+        {},
+        ResultType,
+        ResultType extends any[]
+          ? ResultType extends HydratedDocument<any>[]
+            ? HydratedDocument<RawDocTypeOverride>[]
+            : RawDocTypeOverride[]
+          : (ResultType extends HydratedDocument<any>
+            ? HydratedDocument<RawDocTypeOverride>
+            : RawDocTypeOverride) | (null extends ResultType ? null : never)
+      >,
+      DocType,
+      THelpers,
+      IfEquals<
+        RawDocTypeOverride,
+        {},
+        RawDocType,
+        RawDocTypeOverride
+      >,
+      QueryOp,
+      TDocOverrides
+    >;
+
+    /** Determines if field selection has been made. */
+    selected(): boolean;
+
+    /** Determines if exclusive field selection has been made. */
+    selectedExclusively(): boolean;
+
+    /** Determines if inclusive field selection has been made. */
+    selectedInclusively(): boolean;
+
+    /**
+     * Sets the [MongoDB session](https://www.mongodb.com/docs/manual/reference/server-sessions/)
+     * associated with this query. Sessions are how you mark a query as part of a
+     * [transaction](/docs/transactions.html).
+     */
+    session(session: mongodb.ClientSession | null): this;
+
+    /**
+     * Adds a `$set` to this query's update without changing the operation.
+     * This is useful for query middleware so you can add an update regardless
+     * of whether you use `updateOne()`, `updateMany()`, `findOneAndUpdate()`, etc.
+     */
+    set(path: string | Record<string, unknown>, value?: any): this;
+
+    /** Sets query options. Some options only make sense for certain operations. */
+    setOptions(options: QueryOptions<DocType>, overwrite?: boolean): this;
+
+    /** Sets the query conditions to the provided JSON object. */
+    setQuery(val: FilterQuery<RawDocType> | null): void;
+
+    setUpdate(update: UpdateQuery<RawDocType> | UpdateWithAggregationPipeline): void;
+
+    /** Specifies an `$size` query condition. When called with one argument, the most recent path passed to `where()` is used. */
+    size<K = string>(path: K, val: number): this;
+    size(val: number): this;
+
+    /** Specifies the number of documents to skip. */
+    skip(val: number): this;
+
+    /** Specifies a `$slice` projection for an array. */
+    slice(path: string, val: number | Array<number>): this;
+    slice(val: number | Array<number>): this;
+
+    /** Sets the sort order. If an object is passed, values allowed are `asc`, `desc`, `ascending`, `descending`, `1`, and `-1`. */
+    sort(
+      arg?: string | { [key: string]: SortOrder | { $meta: any } } | [string, SortOrder][] | undefined | null,
+      options?: { override?: boolean }
+    ): this;
+
+    /** Sets the tailable option (for use with capped collections). */
+    tailable(bool?: boolean, opts?: {
+      numberOfRetries?: number;
+      tailableRetryInterval?: number;
+    }): this;
+
+    /**
+     * Executes the query returning a `Promise` which will be
+     * resolved with either the doc(s) or rejected with the error.
+     */
+    then: Promise<ResultType>['then'];
+
+    /** Converts this query to a customized, reusable query constructor with all arguments and options retained. */
+    toConstructor<RetType = typeof Query>(): RetType;
+
+    /**
+     * Declare and/or execute this query as an updateMany() operation. Same as
+     * `update()`, except MongoDB will update _all_ documents that match
+     * `filter` (as opposed to just the first one) regardless of the value of
+     * the `multi` option.
+     */
+    updateMany(
+      filter?: RootFilterQuery<RawDocType>,
+      update?: UpdateQuery<RawDocType> | UpdateWithAggregationPipeline,
+      options?: QueryOptions<DocType> | null
+    ): QueryWithHelpers<UpdateWriteOpResult, DocType, THelpers, RawDocType, 'updateMany', TDocOverrides>;
+
+    /**
+     * Declare and/or execute this query as an updateOne() operation. Same as
+     * `update()`, except it does not support the `multi` or `overwrite` options.
+     */
+    updateOne(
+      filter?: RootFilterQuery<RawDocType>,
+      update?: UpdateQuery<RawDocType> | UpdateWithAggregationPipeline,
+      options?: QueryOptions<DocType> | null
+    ): QueryWithHelpers<UpdateWriteOpResult, DocType, THelpers, RawDocType, 'updateOne', TDocOverrides>;
+
+    /**
+     * Sets the specified number of `mongod` servers, or tag set of `mongod` servers,
+     * that must acknowledge this write before this write is considered successful.
+     */
+    w(val: string | number | null): this;
+
+    /** Specifies a path for use with chaining. */
+    where(path: string, val?: any): this;
+    where(obj: object): this;
+    where(): this;
+
+    /** Defines a `$within` or `$geoWithin` argument for geo-spatial queries. */
+    within(val?: any): this;
+
+    /**
+     * If [`w > 1`](/docs/api/query.html#query_Query-w), the maximum amount of time to
+     * wait for this write to propagate through the replica set before this
+     * operation fails. The default is `0`, which means no timeout.
+     */
+    wtimeout(ms: number): this;
+  }
+}
diff --git a/backend/node_modules/mongoose/types/schemaoptions.d.ts b/backend/node_modules/mongoose/types/schemaoptions.d.ts
new file mode 100644
index 0000000..4df87a8
--- /dev/null
+++ b/backend/node_modules/mongoose/types/schemaoptions.d.ts
@@ -0,0 +1,270 @@
+declare module 'mongoose' {
+  import mongodb = require('mongodb');
+
+  interface SchemaTimestampsConfig {
+    createdAt?: boolean | string;
+    updatedAt?: boolean | string;
+    currentTime?: () => (NativeDate | number);
+  }
+
+  type TypeKeyBaseType = string;
+
+  type DefaultTypeKey = 'type';
+  interface SchemaOptions<
+    DocType = unknown,
+    TInstanceMethods = {},
+    QueryHelpers = {},
+    TStaticMethods = {},
+    TVirtuals = {},
+    THydratedDocumentType = HydratedDocument<DocType, TInstanceMethods, QueryHelpers>
+  > {
+    /**
+     * By default, Mongoose's init() function creates all the indexes defined in your model's schema by
+     * calling Model.createIndexes() after you successfully connect to MongoDB. If you want to disable
+     * automatic index builds, you can set autoIndex to false.
+     */
+    autoIndex?: boolean;
+    /**
+     * Similar to autoIndex, except for automatically creates any Atlas search indexes defined in your
+     * schema. Unlike autoIndex, this option defaults to false.
+     */
+    autoSearchIndex?: boolean;
+    /**
+     * If set to `true`, Mongoose will call Model.createCollection() to create the underlying collection
+     * in MongoDB if autoCreate is set to true. Calling createCollection() sets the collection's default
+     * collation based on the collation option and establishes the collection as a capped collection if
+     * you set the capped schema option.
+     */
+    autoCreate?: boolean;
+    /**
+     * By default, mongoose buffers commands when the connection goes down until the driver manages to reconnect.
+     * To disable buffering, set bufferCommands to false.
+     */
+    bufferCommands?: boolean;
+    /**
+     * If bufferCommands is on, this option sets the maximum amount of time Mongoose buffering will wait before
+     * throwing an error. If not specified, Mongoose will use 10000 (10 seconds).
+     */
+    bufferTimeoutMS?: number;
+    /**
+     * Mongoose supports MongoDBs capped collections. To specify the underlying MongoDB collection be capped, set
+     * the capped option to the maximum size of the collection in bytes.
+     */
+    capped?: boolean | number | { size?: number; max?: number; autoIndexId?: boolean; };
+    /** Sets a default collation for every query and aggregation. */
+    collation?: mongodb.CollationOptions;
+
+    /** Arbitrary options passed to `createCollection()` */
+    collectionOptions?: mongodb.CreateCollectionOptions;
+
+    /** The timeseries option to use when creating the model's collection. */
+    timeseries?: mongodb.TimeSeriesCollectionOptions;
+
+    /** The number of seconds after which a document in a timeseries collection expires. */
+    expireAfterSeconds?: number;
+
+    /** The time after which a document in a timeseries collection expires. */
+    expires?: number | string;
+
+    /**
+     * Mongoose by default produces a collection name by passing the model name to the utils.toCollectionName
+     * method. This method pluralizes the name. Set this option if you need a different name for your collection.
+     */
+    collection?: string;
+    /**
+     * When you define a [discriminator](/docs/discriminators.html), Mongoose adds a path to your
+     * schema that stores which discriminator a document is an instance of. By default, Mongoose
+     * adds an `__t` path, but you can set `discriminatorKey` to overwrite this default.
+     *
+     * @default '__t'
+     */
+    discriminatorKey?: string;
+
+    /**
+     * Option for nested Schemas.
+     *
+     * If true, skip building indexes on this schema's path.
+     *
+     * @default false
+     */
+    excludeIndexes?: boolean;
+    /**
+     * Mongoose assigns each of your schemas an id virtual getter by default which returns the document's _id field
+     * cast to a string, or in the case of ObjectIds, its hexString.
+     */
+    id?: boolean;
+    /**
+     * Mongoose assigns each of your schemas an _id field by default if one is not passed into the Schema
+     * constructor. The type assigned is an ObjectId to coincide with MongoDB's default behavior. If you
+     * don't want an _id added to your schema at all, you may disable it using this option.
+     */
+    _id?: boolean;
+    /**
+     * Mongoose will, by default, "minimize" schemas by removing empty objects. This behavior can be
+     * overridden by setting minimize option to false. It will then store empty objects.
+     */
+    minimize?: boolean;
+    /**
+     * Optimistic concurrency is a strategy to ensure the document you're updating didn't change between when you
+     * loaded it using find() or findOne(), and when you update it using save(). Set to `true` to enable
+     * optimistic concurrency.
+     */
+    optimisticConcurrency?: boolean;
+    /**
+     * If `plugin()` called with tags, Mongoose will only apply plugins to schemas that have
+     * a matching tag in `pluginTags`
+     */
+    pluginTags?: string[];
+    /**
+     * Allows setting query#read options at the schema level, providing us a way to apply default ReadPreferences
+     * to all queries derived from a model.
+     */
+    read?: string;
+    /**
+     * Set a default readConcern for all queries at the schema level
+     */
+    readConcern?: { level: 'local' | 'available' | 'majority' | 'snapshot' | 'linearizable' }
+    /** Allows setting write concern at the schema level. */
+    writeConcern?: WriteConcern;
+    /** defaults to true. */
+    safe?: boolean | { w?: number | string; wtimeout?: number; j?: boolean };
+    /**
+     * The shardKey option is used when we have a sharded MongoDB architecture. Each sharded collection is
+     * given a shard key which must be present in all insert/update operations. We just need to set this
+     * schema option to the same shard key and we'll be all set.
+     */
+    shardKey?: Record<string, unknown>;
+    /**
+     * The strict option, (enabled by default), ensures that values passed to our model constructor that were not
+     * specified in our schema do not get saved to the db.
+     */
+    strict?: boolean | 'throw';
+    /**
+     * equal to `strict` by default, may be `false`, `true`, or `'throw'`. Sets the default
+     * [strictQuery](https://mongoosejs.com/docs/guide.html#strictQuery) mode for schemas.
+     */
+    strictQuery?: boolean | 'throw';
+    /** Exactly the same as the toObject option but only applies when the document's toJSON method is called. */
+    toJSON?: ToObjectOptions<THydratedDocumentType>;
+    /**
+     * Documents have a toObject method which converts the mongoose document into a plain JavaScript object.
+     * This method accepts a few options. Instead of applying these options on a per-document basis, we may
+     * declare the options at the schema level and have them applied to all of the schema's documents by
+     * default.
+     */
+    toObject?: ToObjectOptions<THydratedDocumentType>;
+    /**
+     * By default, if you have an object with key 'type' in your schema, mongoose will interpret it as a
+     * type declaration. However, for applications like geoJSON, the 'type' property is important. If you want to
+     * control which key mongoose uses to find type declarations, set the 'typeKey' schema option.
+     */
+    typeKey?: string;
+
+    /**
+     * By default, documents are automatically validated before they are saved to the database. This is to
+     * prevent saving an invalid document. If you want to handle validation manually, and be able to save
+     * objects which don't pass validation, you can set validateBeforeSave to false.
+     */
+    validateBeforeSave?: boolean;
+    /**
+     * By default, validation will run on modified and required paths before saving to the database.
+     * You can choose to have Mongoose only validate modified paths by setting validateModifiedOnly to true.
+     */
+    validateModifiedOnly?: boolean;
+    /**
+     * The versionKey is a property set on each document when first created by Mongoose. This keys value
+     * contains the internal revision of the document. The versionKey option is a string that represents
+     * the path to use for versioning. The default is '__v'.
+     *
+     * @default '__v'
+     */
+    versionKey?: string | boolean;
+    /**
+     * By default, Mongoose will automatically select() any populated paths for you, unless you explicitly exclude them.
+     *
+     * @default true
+     */
+    selectPopulatedPaths?: boolean;
+    /**
+     * skipVersioning allows excluding paths from versioning (i.e., the internal revision will not be
+     * incremented even if these paths are updated). DO NOT do this unless you know what you're doing.
+     * For subdocuments, include this on the parent document using the fully qualified path.
+     */
+    skipVersioning?: { [key: string]: boolean; };
+    /**
+     * Validation errors in a single nested schema are reported
+     * both on the child and on the parent schema.
+     * Set storeSubdocValidationError to false on the child schema
+     * to make Mongoose only report the parent error.
+     */
+    storeSubdocValidationError?: boolean;
+    /**
+     * The timestamps option tells mongoose to assign createdAt and updatedAt fields to your schema. The type
+     * assigned is Date. By default, the names of the fields are createdAt and updatedAt. Customize the
+     * field names by setting timestamps.createdAt and timestamps.updatedAt.
+     */
+    timestamps?: boolean | SchemaTimestampsConfig;
+
+    /**
+     * Using `save`, `isNew`, and other Mongoose reserved names as schema path names now triggers a warning, not an error.
+     * You can suppress the warning by setting { suppressReservedKeysWarning: true } schema options. Keep in mind that this
+     * can break plugins that rely on these reserved names.
+     */
+    suppressReservedKeysWarning?: boolean,
+
+    /**
+     * Model Statics methods.
+     */
+    statics?: IfEquals<
+      TStaticMethods,
+      {},
+      { [name: string]: (this: Model<DocType>, ...args: any[]) => unknown },
+      AddThisParameter<TStaticMethods, Model<DocType>>
+    >
+
+    /**
+     * Document instance methods.
+     */
+    methods?: IfEquals<
+    TInstanceMethods,
+    {},
+    Record<any, (this: THydratedDocumentType, ...args: any) => unknown>,
+    AddThisParameter<TInstanceMethods, THydratedDocumentType> & AnyObject
+    >
+
+    /**
+     * Query helper functions.
+     */
+    query?: IfEquals<
+    QueryHelpers,
+    {},
+    Record<any, <T extends QueryWithHelpers<unknown, THydratedDocumentType, QueryHelpers, DocType>>(this: T, ...args: any) => T>,
+    QueryHelpers
+    >
+
+    /**
+     * Set whether to cast non-array values to arrays.
+     * @default true
+     */
+    castNonArrays?: boolean;
+
+    /**
+     * Virtual paths.
+     */
+    virtuals?: SchemaOptionsVirtualsPropertyType<DocType, TVirtuals, TInstanceMethods>,
+
+    /**
+     * Set to `true` to default to overwriting models with the same name when calling `mongoose.model()`, as opposed to throwing an `OverwriteModelError`.
+     * @default false
+     */
+    overwriteModels?: boolean;
+  }
+
+  interface DefaultSchemaOptions {
+    typeKey: 'type';
+    id: true;
+    _id: true;
+    timestamps: false;
+    versionKey: '__v'
+  }
+}
diff --git a/backend/node_modules/mongoose/types/schematypes.d.ts b/backend/node_modules/mongoose/types/schematypes.d.ts
new file mode 100644
index 0000000..d5d81c7
--- /dev/null
+++ b/backend/node_modules/mongoose/types/schematypes.d.ts
@@ -0,0 +1,540 @@
+declare module 'mongoose' {
+
+  /** The Mongoose Date [SchemaType](/docs/schematypes.html). */
+  type Date = Schema.Types.Date;
+
+  /**
+   * The Mongoose Decimal128 [SchemaType](/docs/schematypes.html). Used for
+   * declaring paths in your schema that should be
+   * [128-bit decimal floating points](http://thecodebarbarian.com/a-nodejs-perspective-on-mongodb-34-decimal.html).
+   * Do not use this to create a new Decimal128 instance, use `mongoose.Types.Decimal128`
+   * instead.
+   */
+  type Decimal128 = Schema.Types.Decimal128;
+
+
+  /**
+   * The Mongoose Int32 [SchemaType](/docs/schematypes.html). Used for
+   * declaring paths in your schema that should be
+   * 32-bit integers
+   * Do not use this to create a new Int32 instance, use `mongoose.Types.Int32`
+   * instead.
+   */
+  type Int32 = Schema.Types.Int32;
+
+  /**
+   * The Mongoose Mixed [SchemaType](/docs/schematypes.html). Used for
+   * declaring paths in your schema that Mongoose's change tracking, casting,
+   * and validation should ignore.
+   */
+  type Mixed = Schema.Types.Mixed;
+
+  /**
+   * The Mongoose Number [SchemaType](/docs/schematypes.html). Used for
+   * declaring paths in your schema that Mongoose should cast to numbers.
+   */
+  type Number = Schema.Types.Number;
+
+
+  /**
+   * The Mongoose Double [SchemaType](/docs/schematypes.html). Used for
+   * declaring paths in your schema that Mongoose should cast to doubles (IEEE 754-2008)/
+   */
+  type Double = Schema.Types.Double;
+
+  /**
+   * The Mongoose ObjectId [SchemaType](/docs/schematypes.html). Used for
+   * declaring paths in your schema that should be
+   * [MongoDB ObjectIds](https://www.mongodb.com/docs/manual/reference/method/ObjectId/).
+   * Do not use this to create a new ObjectId instance, use `mongoose.Types.ObjectId`
+   * instead.
+   */
+  type ObjectId = Schema.Types.ObjectId;
+
+  /** The various Mongoose SchemaTypes. */
+  const SchemaTypes: typeof Schema.Types;
+
+  type DefaultType<T> = T extends Schema.Types.Mixed ? any : Partial<ExtractMongooseArray<T>>;
+
+  class SchemaTypeOptions<T, EnforcedDocType = any> {
+    type?:
+    T extends string ? StringSchemaDefinition :
+      T extends number ? NumberSchemaDefinition :
+        T extends boolean ? BooleanSchemaDefinition :
+          T extends NativeDate ? DateSchemaDefinition :
+            T extends Map<any, any> ? SchemaDefinition<typeof Map> :
+              T extends Buffer ? SchemaDefinition<typeof Buffer> :
+                T extends Types.ObjectId ? ObjectIdSchemaDefinition :
+                  T extends Types.ObjectId[] ? AnyArray<ObjectIdSchemaDefinition> | AnyArray<SchemaTypeOptions<ObjectId, EnforcedDocType>> :
+                    T extends object[] ? (AnyArray<Schema<any, any, any>> | AnyArray<SchemaDefinition<Unpacked<T>>> | AnyArray<SchemaTypeOptions<Unpacked<T>, EnforcedDocType>>) :
+                      T extends string[] ? AnyArray<StringSchemaDefinition> | AnyArray<SchemaTypeOptions<string, EnforcedDocType>> :
+                        T extends number[] ? AnyArray<NumberSchemaDefinition> | AnyArray<SchemaTypeOptions<number, EnforcedDocType>> :
+                          T extends boolean[] ? AnyArray<BooleanSchemaDefinition> | AnyArray<SchemaTypeOptions<boolean, EnforcedDocType>> :
+                            T extends Function[] ? AnyArray<Function | string> | AnyArray<SchemaTypeOptions<Unpacked<T>, EnforcedDocType>> :
+                              T | typeof SchemaType | Schema<any, any, any> | SchemaDefinition<T> | Function | AnyArray<Function>;
+
+    /** Defines a virtual with the given name that gets/sets this path. */
+    alias?: string | string[];
+
+    /** Function or object describing how to validate this schematype. See [validation docs](https://mongoosejs.com/docs/validation.html). */
+    validate?: SchemaValidator<T, EnforcedDocType> | AnyArray<SchemaValidator<T, EnforcedDocType>>;
+
+    /** Allows overriding casting logic for this individual path. If a string, the given string overwrites Mongoose's default cast error message. */
+    cast?: string |
+    boolean |
+    ((value: any) => T) |
+    [(value: any) => T, string] |
+    [((value: any) => T) | null, (value: any, path: string, model: Model<any>, kind: string) => string];
+
+    /**
+     * If true, attach a required validator to this path, which ensures this path
+     * path cannot be set to a nullish value. If a function, Mongoose calls the
+     * function and only checks for nullish values if the function returns a truthy value.
+     */
+    required?: boolean | ((this: EnforcedDocType) => boolean) | [boolean, string] | [(this: EnforcedDocType) => boolean, string];
+
+    /**
+     * The default value for this path. If a function, Mongoose executes the function
+     * and uses the return value as the default.
+     */
+    default?: DefaultType<T> | ((this: EnforcedDocType, doc: any) => DefaultType<T>) | null;
+
+    /**
+     * The model that `populate()` should use if populating this path.
+     */
+    ref?: string | Model<any> | ((this: any, doc: any) => string | Model<any>);
+
+    /**
+     * The path in the document that `populate()` should use to find the model
+     * to use.
+     */
+
+    refPath?: string | ((this: any, doc: any) => string);
+
+    /**
+     * Whether to include or exclude this path by default when loading documents
+     * using `find()`, `findOne()`, etc.
+     */
+    select?: boolean | number;
+
+    /**
+     * If [truthy](https://masteringjs.io/tutorials/fundamentals/truthy), Mongoose will
+     * build an index on this path when the model is compiled.
+     */
+    index?: boolean | IndexDirection | IndexOptions;
+
+    /**
+     * If [truthy](https://masteringjs.io/tutorials/fundamentals/truthy), Mongoose
+     * will build a unique index on this path when the
+     * model is compiled. [The `unique` option is **not** a validator](/docs/validation.html#the-unique-option-is-not-a-validator).
+     */
+    unique?: boolean | number | [true, string];
+
+    /**
+     * If [truthy](https://masteringjs.io/tutorials/fundamentals/truthy), Mongoose will
+     * disallow changes to this path once the document is saved to the database for the first time. Read more
+     * about [immutability in Mongoose here](http://thecodebarbarian.com/whats-new-in-mongoose-5-6-immutable-properties.html).
+     */
+    immutable?: boolean | ((this: any, doc: any) => boolean);
+
+    /**
+     * If [truthy](https://masteringjs.io/tutorials/fundamentals/truthy), Mongoose will
+     * build a sparse index on this path.
+     */
+    sparse?: boolean | number;
+
+    /**
+     * If [truthy](https://masteringjs.io/tutorials/fundamentals/truthy), Mongoose
+     * will build a text index on this path.
+     */
+    text?: boolean | number | any;
+
+    /**
+     * Define a transform function for this individual schema type.
+     * Only called when calling `toJSON()` or `toObject()`.
+     */
+    transform?: (this: any, val: T) => any;
+
+    /** defines a custom getter for this property using [`Object.defineProperty()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/defineProperty). */
+    get?: (value: any, doc?: this) => T | undefined;
+
+    /** defines a custom setter for this property using [`Object.defineProperty()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/defineProperty). */
+    set?: (value: any, priorVal?: T, doc?: this) => any;
+
+    /** array of allowed values for this path. Allowed for strings, numbers, and arrays of strings */
+    enum?: Array<string | number | null> | ReadonlyArray<string | number | null> | { values: Array<string | number | null> | ReadonlyArray<string | number | null>, message?: string } | { [path: string]: string | number | null };
+
+    /** The default [subtype](http://bsonspec.org/spec.html) associated with this buffer when it is stored in MongoDB. Only allowed for buffer paths */
+    subtype?: number;
+
+    /** The minimum value allowed for this path. Only allowed for numbers and dates. */
+    min?: number | NativeDate | [number, string] | [NativeDate, string] | readonly [number, string] | readonly [NativeDate, string];
+
+    /** The maximum value allowed for this path. Only allowed for numbers and dates. */
+    max?: number | NativeDate | [number, string] | [NativeDate, string] | readonly [number, string] | readonly [NativeDate, string];
+
+    /** Defines a TTL index on this path. Only allowed for dates. */
+    expires?: string | number;
+
+    /** If `true`, Mongoose will skip gathering indexes on subpaths. Only allowed for subdocuments and subdocument arrays. */
+    excludeIndexes?: boolean;
+
+    /** If set, overrides the child schema's `_id` option. Only allowed for subdocuments and subdocument arrays. */
+    _id?: boolean;
+
+    /** If set, specifies the type of this map's values. Mongoose will cast this map's values to the given type. */
+    of?: Function | SchemaDefinitionProperty<any>;
+
+    /** If true, uses Mongoose's default `_id` settings. Only allowed for ObjectIds */
+    auto?: boolean;
+
+    /** Attaches a validator that succeeds if the data string matches the given regular expression, and fails otherwise. */
+    match?: RegExp | [RegExp, string] | readonly [RegExp, string];
+
+    /** If truthy, Mongoose will add a custom setter that lowercases this string using JavaScript's built-in `String#toLowerCase()`. */
+    lowercase?: boolean;
+
+    /** If truthy, Mongoose will add a custom setter that removes leading and trailing whitespace using JavaScript's built-in `String#trim()`. */
+    trim?: boolean;
+
+    /** If truthy, Mongoose will add a custom setter that uppercases this string using JavaScript's built-in `String#toUpperCase()`. */
+    uppercase?: boolean;
+
+    /** If set, Mongoose will add a custom validator that ensures the given string's `length` is at least the given number. */
+    minlength?: number | [number, string] | readonly [number, string];
+
+    /** If set, Mongoose will add a custom validator that ensures the given string's `length` is at most the given number. */
+    maxlength?: number | [number, string] | readonly [number, string];
+
+    [other: string]: any;
+  }
+
+  interface Validator<DocType = any> {
+    message?: string | ((props: ValidatorProps) => string);
+    type?: string;
+    validator?: ValidatorFunction<DocType>;
+    reason?: Error;
+  }
+
+  type ValidatorFunction<DocType = any> = (this: DocType, value: any, validatorProperties?: Validator) => any;
+
+  class SchemaType<T = any, DocType = any> {
+    /** SchemaType constructor */
+    constructor(path: string, options?: AnyObject, instance?: string);
+
+    /** Get/set the function used to cast arbitrary values to this type. */
+    static cast(caster?: Function | boolean): Function;
+
+    static checkRequired(checkRequired?: (v: any) => boolean): (v: any) => boolean;
+
+    /** Sets a default option for this schema type. */
+    static set(option: string, value: any): void;
+
+    /** Attaches a getter for all instances of this schema type. */
+    static get(getter: (value: any) => any): void;
+
+    /** Array containing default setters for all instances of this SchemaType */
+    static setters: ((val?: unknown, priorVal?: unknown, doc?: Document<unknown>, options?: Record<string, any> | null) => unknown)[];
+
+    /** The class that Mongoose uses internally to instantiate this SchemaType's `options` property. */
+    OptionsConstructor: SchemaTypeOptions<T>;
+
+    /** Cast `val` to this schema type. Each class that inherits from schema type should implement this function. */
+    cast(val: any, doc?: Document<any>, init?: boolean, prev?: any, options?: any): any;
+    cast<ResultType>(val: any, doc?: Document<any>, init?: boolean, prev?: any, options?: any): ResultType;
+
+    /** Sets a default value for this SchemaType. */
+    default(val: any): any;
+
+    /** Adds a getter to this schematype. */
+    get(fn: Function): this;
+
+    /** Gets this SchemaType's embedded SchemaType, if any  */
+    getEmbeddedSchemaType<T = any, DocType = any>(): SchemaType<T, DocType> | undefined;
+
+    /**
+     * Defines this path as immutable. Mongoose prevents you from changing
+     * immutable paths unless the parent document has [`isNew: true`](/docs/api/document.html#document_Document-isNew).
+     */
+    immutable(bool: boolean): this;
+
+    /** Declares the index options for this schematype. */
+    index(options: any): this;
+
+    /** String representation of what type this is, like 'ObjectID' or 'Number' */
+    instance: string;
+
+    /** True if this SchemaType has a required validator. False otherwise. */
+    isRequired?: boolean;
+
+    /** The options this SchemaType was instantiated with */
+    options: AnyObject;
+
+    /** The path to this SchemaType in a Schema. */
+    path: string;
+
+    /**
+     * Set the model that this path refers to. This is the option that [populate](https://mongoosejs.com/docs/populate.html)
+     * looks at to determine the foreign collection it should query.
+     */
+    ref(ref: string | boolean | Model<any>): this;
+
+    /**
+     * Adds a required validator to this SchemaType. The validator gets added
+     * to the front of this SchemaType's validators array using unshift().
+     */
+    required(required: boolean, message?: string): this;
+
+    /** The schema this SchemaType instance is part of */
+    schema: Schema<any>;
+
+    /** Sets default select() behavior for this path. */
+    select(val: boolean): this;
+
+    /** Adds a setter to this schematype. */
+    set(fn: Function): this;
+
+    /** Declares a sparse index. */
+    sparse(bool: boolean): this;
+
+    /** Declares a full text index. */
+    text(bool: boolean): this;
+
+    /** Defines a custom function for transforming this path when converting a document to JSON. */
+    transform(fn: (value: any) => any): this;
+
+    /** Declares an unique index. */
+    unique(bool: boolean): this;
+
+    /** The validators that Mongoose should run to validate properties at this SchemaType's path. */
+    validators: Validator[];
+
+    /** Adds validator(s) for this document path. */
+    validate(obj: RegExp | ValidatorFunction<DocType> | Validator<DocType>, errorMsg?: string, type?: string): this;
+
+    /** Adds multiple validators for this document path. */
+    validateAll(validators: Array<RegExp | ValidatorFunction<DocType> | Validator<DocType>>): this;
+
+    /** Default options for this SchemaType */
+    defaultOptions?: Record<string, any>;
+  }
+
+  namespace Schema {
+    namespace Types {
+      class Array extends SchemaType implements AcceptsDiscriminator {
+        /** This schema type's name, to defend against minifiers that mangle function names. */
+        static schemaName: 'Array';
+
+        static options: { castNonArrays: boolean; };
+
+        discriminator<T, U>(name: string | number, schema: Schema<T, U>, value?: string): U;
+        discriminator<D>(name: string | number, schema: Schema, value?: string): Model<D>;
+
+        /** The schematype embedded in this array */
+        caster?: SchemaType;
+
+        /** Default options for this SchemaType */
+        defaultOptions: Record<string, any>;
+
+        /**
+         * Adds an enum validator if this is an array of strings or numbers. Equivalent to
+         * `SchemaString.prototype.enum()` or `SchemaNumber.prototype.enum()`
+         */
+        enum(vals: string[] | number[]): this;
+      }
+
+      class BigInt extends SchemaType {
+        /** This schema type's name, to defend against minifiers that mangle function names. */
+        static schemaName: 'BigInt';
+
+        /** Default options for this SchemaType */
+        defaultOptions: Record<string, any>;
+      }
+
+      class Boolean extends SchemaType {
+        /** This schema type's name, to defend against minifiers that mangle function names. */
+        static schemaName: 'Boolean';
+
+        /** Configure which values get casted to `true`. */
+        static convertToTrue: Set<any>;
+
+        /** Configure which values get casted to `false`. */
+        static convertToFalse: Set<any>;
+
+        /** Default options for this SchemaType */
+        defaultOptions: Record<string, any>;
+      }
+
+      class Buffer extends SchemaType {
+        /** This schema type's name, to defend against minifiers that mangle function names. */
+        static schemaName: 'Buffer';
+
+        /**
+         * Sets the default [subtype](https://studio3t.com/whats-new/best-practices-uuid-mongodb/)
+         * for this buffer. You can find a [list of allowed subtypes here](http://api.mongodb.com/python/current/api/bson/binary.html).
+         */
+        subtype(subtype: 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 128): this;
+
+        /** Default options for this SchemaType */
+        defaultOptions: Record<string, any>;
+      }
+
+      class Date extends SchemaType {
+        /** This schema type's name, to defend against minifiers that mangle function names. */
+        static schemaName: 'Date';
+
+        /** Declares a TTL index (rounded to the nearest second) for _Date_ types only. */
+        expires(when: number | string): this;
+
+        /** Sets a maximum date validator. */
+        max(value: NativeDate, message: string): this;
+
+        /** Sets a minimum date validator. */
+        min(value: NativeDate, message: string): this;
+
+        /** Default options for this SchemaType */
+        defaultOptions: Record<string, any>;
+      }
+
+      class Decimal128 extends SchemaType {
+        /** This schema type's name, to defend against minifiers that mangle function names. */
+        static schemaName: 'Decimal128';
+
+        /** Default options for this SchemaType */
+        defaultOptions: Record<string, any>;
+      }
+
+      class Int32 extends SchemaType {
+        /** This schema type's name, to defend against minifiers that mangle function names. */
+        static schemaName: 'Int32';
+
+        /** Default options for this SchemaType */
+        defaultOptions: Record<string, any>;
+      }
+
+      class DocumentArray extends SchemaType implements AcceptsDiscriminator {
+        /** This schema type's name, to defend against minifiers that mangle function names. */
+        static schemaName: 'DocumentArray';
+
+        static options: { castNonArrays: boolean; };
+
+        discriminator<D>(name: string | number, schema: Schema, value?: string): Model<D>;
+        discriminator<T, U>(name: string | number, schema: Schema<T, U>, value?: string): U;
+
+        /** The schema used for documents in this array */
+        schema: Schema;
+
+        /** The constructor used for subdocuments in this array */
+        caster?: typeof Types.Subdocument;
+
+        /** Default options for this SchemaType */
+        defaultOptions: Record<string, any>;
+      }
+
+      class Map extends SchemaType {
+        /** This schema type's name, to defend against minifiers that mangle function names. */
+        static schemaName: 'Map';
+
+        /** Default options for this SchemaType */
+        defaultOptions: Record<string, any>;
+      }
+
+      class Mixed extends SchemaType {
+        /** This schema type's name, to defend against minifiers that mangle function names. */
+        static schemaName: 'Mixed';
+
+        /** Default options for this SchemaType */
+        defaultOptions: Record<string, any>;
+      }
+
+      class Number extends SchemaType {
+        /** This schema type's name, to defend against minifiers that mangle function names. */
+        static schemaName: 'Number';
+
+        /** Sets a enum validator */
+        enum(vals: number[]): this;
+
+        /** Sets a maximum number validator. */
+        max(value: number, message: string): this;
+
+        /** Sets a minimum number validator. */
+        min(value: number, message: string): this;
+
+        /** Default options for this SchemaType */
+        defaultOptions: Record<string, any>;
+      }
+
+      class Double extends SchemaType {
+        /** This schema type's name, to defend against minifiers that mangle function names. */
+        static schemaName: 'Double';
+
+        /** Default options for this SchemaType */
+        defaultOptions: Record<string, any>;
+      }
+
+      class ObjectId extends SchemaType {
+        /** This schema type's name, to defend against minifiers that mangle function names. */
+        static schemaName: 'ObjectId';
+
+        /** Adds an auto-generated ObjectId default if turnOn is true. */
+        auto(turnOn: boolean): this;
+
+        /** Default options for this SchemaType */
+        defaultOptions: Record<string, any>;
+      }
+
+      class Subdocument<DocType = unknown> extends SchemaType implements AcceptsDiscriminator {
+        /** This schema type's name, to defend against minifiers that mangle function names. */
+        static schemaName: string;
+
+        /** The document's schema */
+        schema: Schema;
+
+        /** Default options for this SchemaType */
+        defaultOptions: Record<string, any>;
+
+        discriminator<T, U>(name: string | number, schema: Schema<T, U>, value?: string): U;
+        discriminator<D>(name: string | number, schema: Schema, value?: string): Model<D>;
+
+        cast(val: any, doc?: Document<any>, init?: boolean, prev?: any, options?: any): HydratedSingleSubdocument<DocType>;
+      }
+
+      class String extends SchemaType {
+        /** This schema type's name, to defend against minifiers that mangle function names. */
+        static schemaName: 'String';
+
+        /** Adds an enum validator */
+        enum(vals: string[] | any): this;
+
+        /** Adds a lowercase [setter](http://mongoosejs.com/docs/api/schematype.html#schematype_SchemaType-set). */
+        lowercase(shouldApply?: boolean): this;
+
+        /** Sets a regexp validator. */
+        match(value: RegExp, message: string): this;
+
+        /** Sets a maximum length validator. */
+        maxlength(value: number, message: string): this;
+
+        /** Sets a minimum length validator. */
+        minlength(value: number, message: string): this;
+
+        /** Adds a trim [setter](http://mongoosejs.com/docs/api/schematype.html#schematype_SchemaType-set). */
+        trim(shouldTrim?: boolean): this;
+
+        /** Adds an uppercase [setter](http://mongoosejs.com/docs/api/schematype.html#schematype_SchemaType-set). */
+        uppercase(shouldApply?: boolean): this;
+
+        /** Default options for this SchemaType */
+        defaultOptions: Record<string, any>;
+      }
+
+      class UUID extends SchemaType {
+        /** This schema type's name, to defend against minifiers that mangle function names. */
+        static schemaName: 'UUID';
+
+        /** Default options for this SchemaType */
+        defaultOptions: Record<string, any>;
+      }
+    }
+  }
+}
diff --git a/backend/node_modules/mongoose/types/session.d.ts b/backend/node_modules/mongoose/types/session.d.ts
new file mode 100644
index 0000000..e7f41f7
--- /dev/null
+++ b/backend/node_modules/mongoose/types/session.d.ts
@@ -0,0 +1,32 @@
+declare module 'mongoose' {
+  import mongodb = require('mongodb');
+
+  type ClientSessionOptions = mongodb.ClientSessionOptions;
+  type ClientSession = mongodb.ClientSession;
+
+  /**
+   * _Requires MongoDB >= 3.6.0._ Starts a [MongoDB session](https://www.mongodb.com/docs/manual/release-notes/3.6/#client-sessions)
+   * for benefits like causal consistency, [retryable writes](https://www.mongodb.com/docs/manual/core/retryable-writes/),
+   * and [transactions](http://thecodebarbarian.com/a-node-js-perspective-on-mongodb-4-transactions.html).
+   */
+  function startSession(options?: ClientSessionOptions): Promise<ClientSession>;
+
+  interface SessionOperation {
+    /** Sets the session. Useful for [transactions](/docs/transactions.html). */
+    session(session: mongodb.ClientSession | null): this;
+  }
+
+  interface SessionStarter {
+
+    /**
+     * Starts a [MongoDB session](https://www.mongodb.com/docs/manual/release-notes/3.6/#client-sessions)
+     * for benefits like causal consistency, [retryable writes](https://www.mongodb.com/docs/manual/core/retryable-writes/),
+     * and [transactions](http://thecodebarbarian.com/a-node-js-perspective-on-mongodb-4-transactions.html).
+     */
+    startSession(options?: ClientSessionOptions): Promise<ClientSession>;
+  }
+
+  interface SessionOption {
+    session?: ClientSession | null;
+  }
+}
diff --git a/backend/node_modules/mongoose/types/types.d.ts b/backend/node_modules/mongoose/types/types.d.ts
new file mode 100644
index 0000000..503a9b2
--- /dev/null
+++ b/backend/node_modules/mongoose/types/types.d.ts
@@ -0,0 +1,108 @@
+
+declare module 'mongoose' {
+  import mongodb = require('mongodb');
+  import bson = require('bson');
+
+  class NativeBuffer extends Buffer {}
+
+  namespace Types {
+    class Array<T> extends global.Array<T> {
+      /** Pops the array atomically at most one time per document `save()`. */
+      $pop(): T;
+
+      /** Atomically shifts the array at most one time per document `save()`. */
+      $shift(): T;
+
+      /** Adds values to the array if not already present. */
+      addToSet(...args: any[]): any[];
+
+      isMongooseArray: true;
+
+      /** Pushes items to the array non-atomically. */
+      nonAtomicPush(...args: any[]): number;
+
+      /** Wraps [`Array#push`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/push) with proper change tracking. */
+      push(...args: any[]): number;
+
+      /**
+       * Pulls items from the array atomically. Equality is determined by casting
+       * the provided value to an embedded document and comparing using
+       * [the `Document.equals()` function.](./api/document.html#document_Document-equals)
+       */
+      pull(...args: any[]): this;
+
+      /**
+       * Alias of [pull](#mongoosearray_MongooseArray-pull)
+       */
+      remove(...args: any[]): this;
+
+      /** Sets the casted `val` at index `i` and marks the array modified. */
+      set(index: number, val: T): this;
+
+      /** Atomically shifts the array at most one time per document `save()`. */
+      shift(): T;
+
+      /** Returns a native js Array. */
+      toObject(options?: ToObjectOptions): any;
+      toObject<T>(options?: ToObjectOptions<T>): T;
+
+      /** Wraps [`Array#unshift`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/unshift) with proper change tracking. */
+      unshift(...args: any[]): number;
+    }
+
+    class Buffer extends NativeBuffer {
+      /** Sets the subtype option and marks the buffer modified. */
+      subtype(subtype: 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 128 | ToObjectOptions): void;
+
+      /** Converts this buffer to its Binary type representation. */
+      toObject(subtype?: 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 128): mongodb.Binary;
+    }
+
+    class Decimal128 extends mongodb.Decimal128 { }
+
+    class DocumentArray<T, THydratedDocumentType extends Types.Subdocument<any> = Types.Subdocument<InferId<T>, any, T> & T> extends Types.Array<THydratedDocumentType> {
+      /** DocumentArray constructor */
+      constructor(values: AnyObject[]);
+
+      isMongooseDocumentArray: true;
+
+      /** Creates a subdocument casted to this schema. */
+      create(obj: any): THydratedDocumentType;
+
+      /** Searches array items for the first document with a matching _id. */
+      id(id: any): THydratedDocumentType | null;
+
+      push(...args: (AnyKeys<T> & AnyObject)[]): number;
+
+      splice(start: number, deleteCount?: number, ...args: (AnyKeys<T> & AnyObject)[]): THydratedDocumentType[];
+    }
+
+    class Map<V> extends global.Map<string, V> {
+      /** Converts a Mongoose map into a vanilla JavaScript map. */
+      toObject(options?: ToObjectOptions & { flattenMaps?: boolean }): any;
+    }
+
+    class ObjectId extends mongodb.ObjectId {
+    }
+
+    class Subdocument<IdType = unknown, TQueryHelpers = any, DocType = any> extends Document<IdType, TQueryHelpers, DocType> {
+      $isSingleNested: true;
+
+      /** Returns the top level document of this sub-document. */
+      ownerDocument(): Document;
+
+      /** Returns this sub-documents parent document. */
+      parent(): Document;
+
+      /** Returns this sub-documents parent document. */
+      $parent(): Document;
+    }
+
+    class ArraySubdocument<IdType = any, TQueryHelpers = unknown, DocType = unknown> extends Subdocument<IdType, TQueryHelpers, DocType> {
+      /** Returns this sub-documents parent array. */
+      parentArray(): Types.DocumentArray<unknown>;
+    }
+
+    class UUID extends bson.UUID {}
+  }
+}
diff --git a/backend/node_modules/mongoose/types/utility.d.ts b/backend/node_modules/mongoose/types/utility.d.ts
new file mode 100644
index 0000000..7c6df56
--- /dev/null
+++ b/backend/node_modules/mongoose/types/utility.d.ts
@@ -0,0 +1,96 @@
+declare module 'mongoose' {
+  type IfAny<IFTYPE, THENTYPE, ELSETYPE = IFTYPE> = 0 extends (1 & IFTYPE) ? THENTYPE : ELSETYPE;
+  type IfUnknown<IFTYPE, THENTYPE> = unknown extends IFTYPE ? THENTYPE : IFTYPE;
+
+  type WithLevel1NestedPaths<T, K extends keyof T = keyof T> = {
+    [P in K | NestedPaths<Required<T>, K>]: P extends K
+      ? T[P]
+      : P extends `${infer Key}.${infer Rest}`
+        ? Key extends keyof T
+          ? Rest extends keyof NonNullable<T[Key]>
+            ? NonNullable<T[Key]>[Rest]
+            : never
+          : never
+        : never;
+  };
+
+  type NestedPaths<T, K extends keyof T> = K extends string
+    ? T[K] extends Record<string, any> | null | undefined
+      ? `${K}.${keyof NonNullable<T[K]> & string}`
+      : never
+    : never;
+
+  type WithoutUndefined<T> = T extends undefined ? never : T;
+
+  /**
+    * @summary Removes keys from a type
+    * @description It helps to exclude keys from a type
+    * @param {T} T A generic type to be checked.
+    * @param {K} K Keys from T that are to be excluded from the generic type
+    * @returns T with the keys in K excluded
+    */
+  type ExcludeKeys<T, K extends keyof T> = {
+    [P in keyof T as P extends K ? never : P]: T[P];
+  };
+
+  type Unpacked<T> = T extends (infer U)[] ?
+    U :
+    T extends ReadonlyArray<infer U> ? U : T;
+
+  type UnpackedIntersection<T, U> = T extends null ? null : T extends (infer A)[]
+    ? (Omit<A, keyof U> & U)[]
+    : keyof U extends never
+      ? T
+      : Omit<T, keyof U> & U;
+
+  type MergeType<A, B> = Omit<A, keyof B> & B;
+
+  /**
+   * @summary Converts Unions to one record "object".
+   * @description It makes intellisense dialog box easier to read as a single object instead of showing that in multiple object unions.
+   * @param {T} T The type to be converted.
+   */
+  type FlatRecord<T> = { [K in keyof T]: T[K] };
+
+  /**
+    * @summary Checks if a type is "Record" or "any".
+    * @description It Helps to check if user has provided schema type "EnforcedDocType"
+    * @param {T} T A generic type to be checked.
+    * @returns true if {@link T} is Record OR false if {@link T} is of any type.
+    */
+  type IsItRecordAndNotAny<T> = IfEquals<T, any, false, T extends Record<any, any> ? true : false>;
+
+/**
+ * @summary Checks if two types are identical.
+ * @param {T} T The first type to be compared with {@link U}.
+ * @param {U} U The seconde type to be compared with {@link T}.
+ * @param {Y} Y A type to be returned if {@link T} &  {@link U} are identical.
+ * @param {N} N A type to be returned if {@link T} &  {@link U} are not identical.
+ */
+type IfEquals<T, U, Y = true, N = false> =
+    (<G>() => G extends T ? 1 : 0) extends
+    (<G>() => G extends U ? 1 : 0) ? Y : N;
+
+/**
+ * @summary Extracts 'this' parameter from a function, if it exists. Otherwise, returns fallback.
+ * @param {T} T Function type to extract 'this' parameter from.
+ * @param {F} F Fallback type to return if 'this' parameter does not exist.
+ */
+type ThisParameter<T, F> = T extends { (this: infer This): void }
+  ? This
+  : F;
+
+/**
+ * @summary Decorates all functions in an object with 'this' parameter.
+ * @param {T} T Object with functions as values to add 'D' parameter to as 'this'. {@link D}
+ * @param {D} D The type to be added as 'this' parameter to all functions in {@link T}.
+ */
+type AddThisParameter<T, D> = {
+  [K in keyof T]: T[K] extends (...args: infer A) => infer R
+    ? ThisParameter<T[K], unknown> extends unknown
+      ? (this: D, ...args: A) => R
+      : T[K]
+    : T[K];
+};
+
+}
diff --git a/backend/node_modules/mongoose/types/validation.d.ts b/backend/node_modules/mongoose/types/validation.d.ts
new file mode 100644
index 0000000..3310d95
--- /dev/null
+++ b/backend/node_modules/mongoose/types/validation.d.ts
@@ -0,0 +1,30 @@
+declare module 'mongoose' {
+
+  type SchemaValidator<T, EnforcedDocType> = RegExp | [RegExp, string] | Function | [Function, string] | ValidateOpts<T, EnforcedDocType> | ValidateOpts<T, EnforcedDocType>[];
+
+  interface ValidatorProps {
+    path: string;
+    fullPath: string;
+    value: any;
+    reason?: Error;
+  }
+
+  interface ValidatorMessageFn {
+    (props: ValidatorProps): string;
+  }
+
+  type ValidateFn<T, EnforcedDocType> =
+    (this: EnforcedDocType, value: any, props?: ValidatorProps & Record<string, any>) => boolean;
+
+  type AsyncValidateFn<T, EnforcedDocType> =
+    (this: EnforcedDocType, value: any, props?: ValidatorProps & Record<string, any>) => Promise<boolean>;
+
+  interface ValidateOpts<T, EnforcedDocType> {
+    msg?: string;
+    message?: string | ValidatorMessageFn;
+    type?: string;
+    validator: ValidateFn<T, EnforcedDocType>
+    | AsyncValidateFn<T, EnforcedDocType>;
+    propsParameter?: boolean;
+  }
+}
diff --git a/backend/node_modules/mongoose/types/virtuals.d.ts b/backend/node_modules/mongoose/types/virtuals.d.ts
new file mode 100644
index 0000000..2ec48a4
--- /dev/null
+++ b/backend/node_modules/mongoose/types/virtuals.d.ts
@@ -0,0 +1,14 @@
+declare module 'mongoose' {
+    type VirtualPathFunctions<DocType = {}, PathValueType = unknown, TInstanceMethods = {}> = {
+      get?: TVirtualPathFN<DocType, PathValueType, TInstanceMethods, PathValueType>;
+      set?: TVirtualPathFN<DocType, PathValueType, TInstanceMethods, void>;
+      options?: VirtualTypeOptions<HydratedDocument<DocType, TInstanceMethods>, DocType>;
+    };
+
+  type TVirtualPathFN<DocType = {}, PathType = unknown, TInstanceMethods = {}, TReturn = unknown> =
+    <T = HydratedDocument<DocType, TInstanceMethods>>(this: Document<any, any, DocType> & DocType, value: PathType, virtual: VirtualType<T>, doc: Document<any, any, DocType> & DocType) => TReturn;
+
+    type SchemaOptionsVirtualsPropertyType<DocType = any, VirtualPaths = Record<any, unknown>, TInstanceMethods = {}> = {
+      [K in keyof VirtualPaths]: VirtualPathFunctions<IsItRecordAndNotAny<DocType> extends true ? DocType : any, VirtualPaths[K], TInstanceMethods>
+    };
+}
diff --git a/backend/node_modules/mpath/.travis.yml b/backend/node_modules/mpath/.travis.yml
new file mode 100644
index 0000000..9bdf212
--- /dev/null
+++ b/backend/node_modules/mpath/.travis.yml
@@ -0,0 +1,9 @@
+language: node_js
+node_js:
+  - "4"
+  - "5"
+  - "6"
+  - "7"
+  - "8"
+  - "9"
+  - "10"
diff --git a/backend/node_modules/mpath/History.md b/backend/node_modules/mpath/History.md
new file mode 100644
index 0000000..5235d68
--- /dev/null
+++ b/backend/node_modules/mpath/History.md
@@ -0,0 +1,88 @@
+0.9.0 / 2022-04-17
+==================
+ * feat: export `stringToParts()`
+
+0.8.4 / 2021-09-01
+==================
+ * fix: throw error if `parts` contains an element that isn't a string or number #13
+
+0.8.3 / 2020-12-30
+==================
+ * fix: use var instead of let/const for Node.js 4.x support
+
+0.8.2 / 2020-12-30
+==================
+ * fix(stringToParts): fall back to legacy treatment for square brackets if square brackets contents aren't a number Automattic/mongoose#9640
+ * chore: add eslint
+
+0.8.1 / 2020-12-10
+==================
+ * fix(stringToParts): handle empty string and trailing dot the same way that `split()` does for backwards compat
+
+0.8.0 / 2020-11-14
+==================
+ * feat: support square bracket indexing for `get()`, `set()`, `has()`, and `unset()`
+
+0.7.0 / 2020-03-24
+==================
+ * BREAKING CHANGE: remove `component.json` #9 [AlexeyGrigorievBoost](https://github.com/AlexeyGrigorievBoost)
+
+0.6.0 / 2019-05-01
+==================
+ * feat: support setting dotted paths within nested arrays
+
+0.5.2 / 2019-04-25
+==================
+ * fix: avoid using subclassed array constructor when doing `map()`
+
+0.5.1 / 2018-08-30
+==================
+ * fix: prevent writing to constructor and prototype as well as __proto__
+
+0.5.0 / 2018-08-30
+==================
+ * BREAKING CHANGE: disallow setting/unsetting __proto__ properties
+ * feat: re-add support for Node < 4 for this release
+
+0.4.1 / 2018-04-08
+==================
+ * fix: allow opting out of weird `$` set behavior re: Automattic/mongoose#6273
+
+0.4.0 / 2018-03-27
+==================
+ * feat: add support for ES6 maps
+ * BREAKING CHANGE: drop support for Node < 4
+
+0.3.0 / 2017-06-05
+==================
+ * feat: add has() and unset() functions
+
+0.2.1 / 2013-03-22
+==================
+
+  * test; added for #5
+  * fix typo that breaks set #5 [Contra](https://github.com/Contra)
+
+0.2.0 / 2013-03-15
+==================
+
+  * added; adapter support for set
+  * added; adapter support for get
+  * add basic benchmarks
+  * add support for using module as a component #2 [Contra](https://github.com/Contra)
+
+0.1.1 / 2012-12-21
+==================
+
+  * added; map support
+
+0.1.0 / 2012-12-13
+==================
+
+  * added; set('array.property', val, object) support
+  * added; get('array.property', object) support
+
+0.0.1 / 2012-11-03
+==================
+
+  * initial release
diff --git a/backend/node_modules/mpath/LICENSE b/backend/node_modules/mpath/LICENSE
new file mode 100644
index 0000000..38c529d
--- /dev/null
+++ b/backend/node_modules/mpath/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2012 [Aaron Heckmann](aaron.heckmann+github@gmail.com)
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/mpath/README.md b/backend/node_modules/mpath/README.md
new file mode 100644
index 0000000..9831dd0
--- /dev/null
+++ b/backend/node_modules/mpath/README.md
@@ -0,0 +1,278 @@
+#mpath
+
+{G,S}et javascript object values using MongoDB-like path notation.
+
+###Getting
+
+```js
+var mpath = require('mpath');
+
+var obj = {
+    comments: [
+      { title: 'funny' },
+      { title: 'exciting!' }
+    ]
+}
+
+mpath.get('comments.1.title', obj) // 'exciting!'
+```
+
+`mpath.get` supports array property notation as well.
+
+```js
+var obj = {
+    comments: [
+      { title: 'funny' },
+      { title: 'exciting!' }
+    ]
+}
+
+mpath.get('comments.title', obj) // ['funny', 'exciting!']
+```
+
+Array property and indexing syntax, when used together, are very powerful.
+
+```js
+var obj = {
+  array: [
+      { o: { array: [{x: {b: [4,6,8]}}, { y: 10} ] }}
+    , { o: { array: [{x: {b: [1,2,3]}}, { x: {z: 10 }}, { x: 'Turkey Day' }] }}
+    , { o: { array: [{x: {b: null }}, { x: { b: [null, 1]}}] }}
+    , { o: { array: [{x: null }] }}
+    , { o: { array: [{y: 3 }] }}
+    , { o: { array: [3, 0, null] }}
+    , { o: { name: 'ha' }}
+  ];
+}
+
+var found = mpath.get('array.o.array.x.b.1', obj);
+
+console.log(found); // prints..
+
+    [ [6, undefined]
+    , [2, undefined, undefined]
+    , [null, 1]
+    , [null]
+    , [undefined]
+    , [undefined, undefined, undefined]
+    , undefined
+    ]
+
+```
+
+#####Field selection rules:
+
+The following rules are iteratively applied to each `segment` in the passed `path`. For example:
+
+```js
+var path = 'one.two.14'; // path
+'one' // segment 0
+'two' // segment 1
+14    // segment 2
+```
+
+- 1) when value of the segment parent is not an array, return the value of `parent.segment`
+- 2) when value of the segment parent is an array
+  - a) if the segment is an integer, replace the parent array with the value at `parent[segment]`
+  - b) if not an integer, keep the array but replace each array `item` with the value returned from calling `get(remainingSegments, item)` or undefined if falsey.
+
+#####Maps
+
+`mpath.get` also accepts an optional `map` argument which receives each individual found value. The value returned from the `map` function will be used in the original found values place.
+
+```js
+var obj = {
+    comments: [
+      { title: 'funny' },
+      { title: 'exciting!' }
+    ]
+}
+
+mpath.get('comments.title', obj, function (val) {
+  return 'funny' == val
+    ? 'amusing'
+    : val;
+});
+// ['amusing', 'exciting!']
+```
+
+###Setting
+
+```js
+var obj = {
+    comments: [
+      { title: 'funny' },
+      { title: 'exciting!' }
+    ]
+}
+
+mpath.set('comments.1.title', 'hilarious', obj)
+console.log(obj.comments[1].title) // 'hilarious'
+```
+
+`mpath.set` supports the same array property notation as `mpath.get`.
+
+```js
+var obj = {
+    comments: [
+      { title: 'funny' },
+      { title: 'exciting!' }
+    ]
+}
+
+mpath.set('comments.title', ['hilarious', 'fruity'], obj);
+
+console.log(obj); // prints..
+
+  { comments: [
+      { title: 'hilarious' },
+      { title: 'fruity' }
+  ]}
+```
+
+Array property and indexing syntax can be used together also when setting.
+
+```js
+var obj = {
+  array: [
+      { o: { array: [{x: {b: [4,6,8]}}, { y: 10} ] }}
+    , { o: { array: [{x: {b: [1,2,3]}}, { x: {z: 10 }}, { x: 'Turkey Day' }] }}
+    , { o: { array: [{x: {b: null }}, { x: { b: [null, 1]}}] }}
+    , { o: { array: [{x: null }] }}
+    , { o: { array: [{y: 3 }] }}
+    , { o: { array: [3, 0, null] }}
+    , { o: { name: 'ha' }}
+  ]
+}
+
+mpath.set('array.1.o', 'this was changed', obj);
+
+console.log(require('util').inspect(obj, false, 1000)); // prints..
+
+{
+  array: [
+      { o: { array: [{x: {b: [4,6,8]}}, { y: 10} ] }}
+    , { o: 'this was changed' }
+    , { o: { array: [{x: {b: null }}, { x: { b: [null, 1]}}] }}
+    , { o: { array: [{x: null }] }}
+    , { o: { array: [{y: 3 }] }}
+    , { o: { array: [3, 0, null] }}
+    , { o: { name: 'ha' }}
+  ];
+}
+
+mpath.set('array.o.array.x', 'this was changed too', obj);
+
+console.log(require('util').inspect(obj, false, 1000)); // prints..
+
+{
+  array: [
+      { o: { array: [{x: 'this was changed too'}, { y: 10, x: 'this was changed too'} ] }}
+    , { o: 'this was changed' }
+    , { o: { array: [{x: 'this was changed too'}, { x: 'this was changed too'}] }}
+    , { o: { array: [{x: 'this was changed too'}] }}
+    , { o: { array: [{x: 'this was changed too', y: 3 }] }}
+    , { o: { array: [3, 0, null] }}
+    , { o: { name: 'ha' }}
+  ];
+}
+```
+
+####Setting arrays
+
+By default, setting a property within an array to another array results in each element of the new array being set to the item in the destination array at the matching index. An example is helpful.
+
+```js
+var obj = {
+    comments: [
+      { title: 'funny' },
+      { title: 'exciting!' }
+    ]
+}
+
+mpath.set('comments.title', ['hilarious', 'fruity'], obj);
+
+console.log(obj); // prints..
+
+  { comments: [
+      { title: 'hilarious' },
+      { title: 'fruity' }
+  ]}
+```
+
+If we do not desire this destructuring-like assignment behavior we may instead specify the `$` operator in the path being set to force the array to be copied directly.
+
+```js
+var obj = {
+    comments: [
+      { title: 'funny' },
+      { title: 'exciting!' }
+    ]
+}
+
+mpath.set('comments.$.title', ['hilarious', 'fruity'], obj);
+
+console.log(obj); // prints..
+
+  { comments: [
+      { title: ['hilarious', 'fruity'] },
+      { title: ['hilarious', 'fruity'] }
+  ]}
+```
+
+####Field assignment rules
+
+The rules utilized mirror those used on `mpath.get`, meaning we can take values returned from `mpath.get`, update them, and reassign them using `mpath.set`. Note that setting nested arrays of arrays can get unweildy quickly. Check out the [tests](https://github.com/aheckmann/mpath/blob/master/test/index.js) for more extreme examples.
+
+#####Maps
+
+`mpath.set` also accepts an optional `map` argument which receives each individual value being set. The value returned from the `map` function will be used in the original values place.
+
+```js
+var obj = {
+    comments: [
+      { title: 'funny' },
+      { title: 'exciting!' }
+    ]
+}
+
+mpath.set('comments.title', ['hilarious', 'fruity'], obj, function (val) {
+  return val.length;
+});
+
+console.log(obj); // prints..
+
+  { comments: [
+      { title: 9 },
+      { title: 6 }
+  ]}
+```
+
+### Custom object types
+
+Sometimes you may want to enact the same functionality on custom object types that store all their real data internally, say for an ODM type object. No fear, `mpath` has you covered. Simply pass the name of the property being used to store the internal data and it will be traversed instead:
+
+```js
+var mpath = require('mpath');
+
+var obj = {
+    comments: [
+      { title: 'exciting!', _doc: { title: 'great!' }}
+    ]
+}
+
+mpath.get('comments.0.title', obj, '_doc')            // 'great!'
+mpath.set('comments.0.title', 'nov 3rd', obj, '_doc')
+mpath.get('comments.0.title', obj, '_doc')            // 'nov 3rd'
+mpath.get('comments.0.title', obj)                    // 'exciting'
+```
+
+When used with a `map`, the `map` argument comes last.
+
+```js
+mpath.get(path, obj, '_doc', map);
+mpath.set(path, val, obj, '_doc', map);
+```
+
+[LICENSE](https://github.com/aheckmann/mpath/blob/master/LICENSE)
+
diff --git a/backend/node_modules/mpath/SECURITY.md b/backend/node_modules/mpath/SECURITY.md
new file mode 100644
index 0000000..1c916a3
--- /dev/null
+++ b/backend/node_modules/mpath/SECURITY.md
@@ -0,0 +1,5 @@
+# Reporting a Vulnerability
+
+Please report suspected security vulnerabilities to val [at] karpov [dot] io.
+You will receive a response from us within 72 hours.
+If the issue is confirmed, we will release a patch as soon as possible depending on complexity.
diff --git a/backend/node_modules/mpath/index.js b/backend/node_modules/mpath/index.js
new file mode 100644
index 0000000..47c17cd
--- /dev/null
+++ b/backend/node_modules/mpath/index.js
@@ -0,0 +1,3 @@
+'use strict';
+
+module.exports = exports = require('./lib');
diff --git a/backend/node_modules/mpath/lib/index.js b/backend/node_modules/mpath/lib/index.js
new file mode 100644
index 0000000..3f21cdc
--- /dev/null
+++ b/backend/node_modules/mpath/lib/index.js
@@ -0,0 +1,336 @@
+/* eslint strict:off */
+/* eslint no-var: off */
+/* eslint no-redeclare: off */
+
+var stringToParts = require('./stringToParts');
+
+// These properties are special and can open client libraries to security
+// issues
+var ignoreProperties = ['__proto__', 'constructor', 'prototype'];
+
+/**
+ * Returns the value of object `o` at the given `path`.
+ *
+ * ####Example:
+ *
+ *     var obj = {
+ *         comments: [
+ *             { title: 'exciting!', _doc: { title: 'great!' }}
+ *           , { title: 'number dos' }
+ *         ]
+ *     }
+ *
+ *     mpath.get('comments.0.title', o)         // 'exciting!'
+ *     mpath.get('comments.0.title', o, '_doc') // 'great!'
+ *     mpath.get('comments.title', o)           // ['exciting!', 'number dos']
+ *
+ *     // summary
+ *     mpath.get(path, o)
+ *     mpath.get(path, o, special)
+ *     mpath.get(path, o, map)
+ *     mpath.get(path, o, special, map)
+ *
+ * @param {String} path
+ * @param {Object} o
+ * @param {String} [special] When this property name is present on any object in the path, walking will continue on the value of this property.
+ * @param {Function} [map] Optional function which receives each individual found value. The value returned from `map` is used in the original values place.
+ */
+
+exports.get = function(path, o, special, map) {
+  var lookup;
+
+  if ('function' == typeof special) {
+    if (special.length < 2) {
+      map = special;
+      special = undefined;
+    } else {
+      lookup = special;
+      special = undefined;
+    }
+  }
+
+  map || (map = K);
+
+  var parts = 'string' == typeof path
+    ? stringToParts(path)
+    : path;
+
+  if (!Array.isArray(parts)) {
+    throw new TypeError('Invalid `path`. Must be either string or array');
+  }
+
+  var obj = o,
+      part;
+
+  for (var i = 0; i < parts.length; ++i) {
+    part = parts[i];
+    if (typeof parts[i] !== 'string' && typeof parts[i] !== 'number') {
+      throw new TypeError('Each segment of path to `get()` must be a string or number, got ' + typeof parts[i]);
+    }
+
+    if (Array.isArray(obj) && !/^\d+$/.test(part)) {
+      // reading a property from the array items
+      var paths = parts.slice(i);
+
+      // Need to `concat()` to avoid `map()` calling a constructor of an array
+      // subclass
+      return [].concat(obj).map(function(item) {
+        return item
+          ? exports.get(paths, item, special || lookup, map)
+          : map(undefined);
+      });
+    }
+
+    if (lookup) {
+      obj = lookup(obj, part);
+    } else {
+      var _from = special && obj[special] ? obj[special] : obj;
+      obj = _from instanceof Map ?
+        _from.get(part) :
+        _from[part];
+    }
+
+    if (!obj) return map(obj);
+  }
+
+  return map(obj);
+};
+
+/**
+ * Returns true if `in` returns true for every piece of the path
+ *
+ * @param {String} path
+ * @param {Object} o
+ */
+
+exports.has = function(path, o) {
+  var parts = typeof path === 'string' ?
+    stringToParts(path) :
+    path;
+
+  if (!Array.isArray(parts)) {
+    throw new TypeError('Invalid `path`. Must be either string or array');
+  }
+
+  var len = parts.length;
+  var cur = o;
+  for (var i = 0; i < len; ++i) {
+    if (typeof parts[i] !== 'string' && typeof parts[i] !== 'number') {
+      throw new TypeError('Each segment of path to `has()` must be a string or number, got ' + typeof parts[i]);
+    }
+    if (cur == null || typeof cur !== 'object' || !(parts[i] in cur)) {
+      return false;
+    }
+    cur = cur[parts[i]];
+  }
+
+  return true;
+};
+
+/**
+ * Deletes the last piece of `path`
+ *
+ * @param {String} path
+ * @param {Object} o
+ */
+
+exports.unset = function(path, o) {
+  var parts = typeof path === 'string' ?
+    stringToParts(path) :
+    path;
+
+  if (!Array.isArray(parts)) {
+    throw new TypeError('Invalid `path`. Must be either string or array');
+  }
+
+  var len = parts.length;
+  var cur = o;
+  for (var i = 0; i < len; ++i) {
+    if (cur == null || typeof cur !== 'object' || !(parts[i] in cur)) {
+      return false;
+    }
+    if (typeof parts[i] !== 'string' && typeof parts[i] !== 'number') {
+      throw new TypeError('Each segment of path to `unset()` must be a string or number, got ' + typeof parts[i]);
+    }
+    // Disallow any updates to __proto__ or special properties.
+    if (ignoreProperties.indexOf(parts[i]) !== -1) {
+      return false;
+    }
+    if (i === len - 1) {
+      delete cur[parts[i]];
+      return true;
+    }
+    cur = cur instanceof Map ? cur.get(parts[i]) : cur[parts[i]];
+  }
+
+  return true;
+};
+
+/**
+ * Sets the `val` at the given `path` of object `o`.
+ *
+ * @param {String} path
+ * @param {Anything} val
+ * @param {Object} o
+ * @param {String} [special] When this property name is present on any object in the path, walking will continue on the value of this property.
+ * @param {Function} [map] Optional function which is passed each individual value before setting it. The value returned from `map` is used in the original values place.
+ */
+
+exports.set = function(path, val, o, special, map, _copying) {
+  var lookup;
+
+  if ('function' == typeof special) {
+    if (special.length < 2) {
+      map = special;
+      special = undefined;
+    } else {
+      lookup = special;
+      special = undefined;
+    }
+  }
+
+  map || (map = K);
+
+  var parts = 'string' == typeof path
+    ? stringToParts(path)
+    : path;
+
+  if (!Array.isArray(parts)) {
+    throw new TypeError('Invalid `path`. Must be either string or array');
+  }
+
+  if (null == o) return;
+
+  for (var i = 0; i < parts.length; ++i) {
+    if (typeof parts[i] !== 'string' && typeof parts[i] !== 'number') {
+      throw new TypeError('Each segment of path to `set()` must be a string or number, got ' + typeof parts[i]);
+    }
+    // Silently ignore any updates to `__proto__`, these are potentially
+    // dangerous if using mpath with unsanitized data.
+    if (ignoreProperties.indexOf(parts[i]) !== -1) {
+      return;
+    }
+  }
+
+  // the existance of $ in a path tells us if the user desires
+  // the copying of an array instead of setting each value of
+  // the array to the one by one to matching positions of the
+  // current array. Unless the user explicitly opted out by passing
+  // false, see Automattic/mongoose#6273
+  var copy = _copying || (/\$/.test(path) && _copying !== false),
+      obj = o,
+      part;
+
+  for (var i = 0, len = parts.length - 1; i < len; ++i) {
+    part = parts[i];
+
+    if ('$' == part) {
+      if (i == len - 1) {
+        break;
+      } else {
+        continue;
+      }
+    }
+
+    if (Array.isArray(obj) && !/^\d+$/.test(part)) {
+      var paths = parts.slice(i);
+      if (!copy && Array.isArray(val)) {
+        for (var j = 0; j < obj.length && j < val.length; ++j) {
+          // assignment of single values of array
+          exports.set(paths, val[j], obj[j], special || lookup, map, copy);
+        }
+      } else {
+        for (var j = 0; j < obj.length; ++j) {
+          // assignment of entire value
+          exports.set(paths, val, obj[j], special || lookup, map, copy);
+        }
+      }
+      return;
+    }
+
+    if (lookup) {
+      obj = lookup(obj, part);
+    } else {
+      var _to = special && obj[special] ? obj[special] : obj;
+      obj = _to instanceof Map ?
+        _to.get(part) :
+        _to[part];
+    }
+
+    if (!obj) return;
+  }
+
+  // process the last property of the path
+
+  part = parts[len];
+
+  // use the special property if exists
+  if (special && obj[special]) {
+    obj = obj[special];
+  }
+
+  // set the value on the last branch
+  if (Array.isArray(obj) && !/^\d+$/.test(part)) {
+    if (!copy && Array.isArray(val)) {
+      _setArray(obj, val, part, lookup, special, map);
+    } else {
+      for (var j = 0; j < obj.length; ++j) {
+        var item = obj[j];
+        if (item) {
+          if (lookup) {
+            lookup(item, part, map(val));
+          } else {
+            if (item[special]) item = item[special];
+            item[part] = map(val);
+          }
+        }
+      }
+    }
+  } else {
+    if (lookup) {
+      lookup(obj, part, map(val));
+    } else if (obj instanceof Map) {
+      obj.set(part, map(val));
+    } else {
+      obj[part] = map(val);
+    }
+  }
+};
+
+/*!
+ * Split a string path into components delimited by '.' or
+ * '[\d+]'
+ *
+ * #### Example:
+ *     stringToParts('foo[0].bar.1'); // ['foo', '0', 'bar', '1']
+ */
+
+exports.stringToParts = stringToParts;
+
+/*!
+ * Recursively set nested arrays
+ */
+
+function _setArray(obj, val, part, lookup, special, map) {
+  for (var item, j = 0; j < obj.length && j < val.length; ++j) {
+    item = obj[j];
+    if (Array.isArray(item) && Array.isArray(val[j])) {
+      _setArray(item, val[j], part, lookup, special, map);
+    } else if (item) {
+      if (lookup) {
+        lookup(item, part, map(val[j]));
+      } else {
+        if (item[special]) item = item[special];
+        item[part] = map(val[j]);
+      }
+    }
+  }
+}
+
+/*!
+ * Returns the value passed to it.
+ */
+
+function K(v) {
+  return v;
+}
diff --git a/backend/node_modules/mpath/lib/stringToParts.js b/backend/node_modules/mpath/lib/stringToParts.js
new file mode 100644
index 0000000..f70f333
--- /dev/null
+++ b/backend/node_modules/mpath/lib/stringToParts.js
@@ -0,0 +1,48 @@
+'use strict';
+
+module.exports = function stringToParts(str) {
+  const result = [];
+
+  let curPropertyName = '';
+  let state = 'DEFAULT';
+  for (let i = 0; i < str.length; ++i) {
+    // Fall back to treating as property name rather than bracket notation if
+    // square brackets contains something other than a number.
+    if (state === 'IN_SQUARE_BRACKETS' && !/\d/.test(str[i]) && str[i] !== ']') {
+      state = 'DEFAULT';
+      curPropertyName = result[result.length - 1] + '[' + curPropertyName;
+      result.splice(result.length - 1, 1);
+    }
+
+    if (str[i] === '[') {
+      if (state !== 'IMMEDIATELY_AFTER_SQUARE_BRACKETS') {
+        result.push(curPropertyName);
+        curPropertyName = '';
+      }
+      state = 'IN_SQUARE_BRACKETS';
+    } else if (str[i] === ']') {
+      if (state === 'IN_SQUARE_BRACKETS') {
+        state = 'IMMEDIATELY_AFTER_SQUARE_BRACKETS';
+        result.push(curPropertyName);
+        curPropertyName = '';
+      } else {
+        state = 'DEFAULT';
+        curPropertyName += str[i];
+      }
+    } else if (str[i] === '.') {
+      if (state !== 'IMMEDIATELY_AFTER_SQUARE_BRACKETS') {
+        result.push(curPropertyName);
+        curPropertyName = '';
+      }
+      state = 'DEFAULT';
+    } else {
+      curPropertyName += str[i];
+    }
+  }
+
+  if (state !== 'IMMEDIATELY_AFTER_SQUARE_BRACKETS') {
+    result.push(curPropertyName);
+  }
+
+  return result;
+};
\ No newline at end of file
diff --git a/backend/node_modules/mpath/package.json b/backend/node_modules/mpath/package.json
new file mode 100644
index 0000000..6d1242d
--- /dev/null
+++ b/backend/node_modules/mpath/package.json
@@ -0,0 +1,144 @@
+{
+  "name": "mpath",
+  "version": "0.9.0",
+  "description": "{G,S}et object values using MongoDB-like path notation",
+  "main": "index.js",
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha test/*"
+  },
+  "engines": {
+    "node": ">=4.0.0"
+  },
+  "repository": "git://github.com/aheckmann/mpath.git",
+  "keywords": [
+    "mongodb",
+    "path",
+    "get",
+    "set"
+  ],
+  "author": "Aaron Heckmann <aaron.heckmann+github@gmail.com>",
+  "license": "MIT",
+  "devDependencies": {
+    "mocha": "5.x",
+    "benchmark": "~1.0.0",
+    "eslint": "7.16.0"
+  },
+  "eslintConfig": {
+    "extends": [
+      "eslint:recommended"
+    ],
+    "parserOptions": {
+      "ecmaVersion": 2015
+    },
+    "env": {
+      "node": true,
+      "es6": true
+    },
+    "rules": {
+      "comma-style": "error",
+      "indent": [
+        "error",
+        2,
+        {
+          "SwitchCase": 1,
+          "VariableDeclarator": 2
+        }
+      ],
+      "keyword-spacing": "error",
+      "no-whitespace-before-property": "error",
+      "no-buffer-constructor": "warn",
+      "no-console": "off",
+      "no-multi-spaces": "error",
+      "no-constant-condition": "off",
+      "func-call-spacing": "error",
+      "no-trailing-spaces": "error",
+      "no-undef": "error",
+      "no-unneeded-ternary": "error",
+      "no-const-assign": "error",
+      "no-useless-rename": "error",
+      "no-dupe-keys": "error",
+      "space-in-parens": [
+        "error",
+        "never"
+      ],
+      "spaced-comment": [
+        "error",
+        "always",
+        {
+          "block": {
+            "markers": [
+              "!"
+            ],
+            "balanced": true
+          }
+        }
+      ],
+      "key-spacing": [
+        "error",
+        {
+          "beforeColon": false,
+          "afterColon": true
+        }
+      ],
+      "comma-spacing": [
+        "error",
+        {
+          "before": false,
+          "after": true
+        }
+      ],
+      "array-bracket-spacing": 1,
+      "arrow-spacing": [
+        "error",
+        {
+          "before": true,
+          "after": true
+        }
+      ],
+      "object-curly-spacing": [
+        "error",
+        "always"
+      ],
+      "comma-dangle": [
+        "error",
+        "never"
+      ],
+      "no-unreachable": "error",
+      "quotes": [
+        "error",
+        "single"
+      ],
+      "quote-props": [
+        "error",
+        "as-needed"
+      ],
+      "semi": "error",
+      "no-extra-semi": "error",
+      "semi-spacing": "error",
+      "no-spaced-func": "error",
+      "no-throw-literal": "error",
+      "space-before-blocks": "error",
+      "space-before-function-paren": [
+        "error",
+        "never"
+      ],
+      "space-infix-ops": "error",
+      "space-unary-ops": "error",
+      "no-var": "warn",
+      "prefer-const": "warn",
+      "strict": [
+        "error",
+        "global"
+      ],
+      "no-restricted-globals": [
+        "error",
+        {
+          "name": "context",
+          "message": "Don't use Mocha's global context"
+        }
+      ],
+      "no-prototype-builtins": "off"
+    }
+  }
+}
diff --git a/backend/node_modules/mpath/test/.eslintrc.yml b/backend/node_modules/mpath/test/.eslintrc.yml
new file mode 100644
index 0000000..c0c6803
--- /dev/null
+++ b/backend/node_modules/mpath/test/.eslintrc.yml
@@ -0,0 +1,4 @@
+env:
+  mocha: true
+rules:
+  no-unused-vars: off
\ No newline at end of file
diff --git a/backend/node_modules/mpath/test/index.js b/backend/node_modules/mpath/test/index.js
new file mode 100644
index 0000000..ce07b19
--- /dev/null
+++ b/backend/node_modules/mpath/test/index.js
@@ -0,0 +1,1879 @@
+'use strict';
+
+/**
+ * Test dependencies.
+ */
+
+const mpath = require('../');
+const assert = require('assert');
+
+/**
+ * logging helper
+ */
+
+function log(o) {
+  console.log();
+  console.log(require('util').inspect(o, false, 1000));
+}
+
+/**
+ * special path for override tests
+ */
+
+const special = '_doc';
+
+/**
+ * Tests
+ */
+
+describe('mpath', function() {
+
+  /**
+   * test doc creator
+   */
+
+  function doc() {
+    const o = { first: { second: { third: [3, { name: 'aaron' }, 9] } } };
+    o.comments = [
+      { name: 'one' },
+      { name: 'two', _doc: { name: '2' } },
+      { name: 'three',
+        comments: [{}, { comments: [{ val: 'twoo' }] }],
+        _doc: { name: '3', comments: [{}, { _doc: { comments: [{ val: 2 }] } }] } }
+    ];
+    o.name = 'jiro';
+    o.array = [
+      { o: { array: [{ x: { b: [4, 6, 8] } }, { y: 10 }] } },
+      { o: { array: [{ x: { b: [1, 2, 3] } }, { x: { z: 10 } }, { x: { b: 'hi' } }] } },
+      { o: { array: [{ x: { b: null } }, { x: { b: [null, 1] } }] } },
+      { o: { array: [{ x: null }] } },
+      { o: { array: [{ y: 3 }] } },
+      { o: { array: [3, 0, null] } },
+      { o: { name: 'ha' } }
+    ];
+    o.arr = [
+      { arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] },
+      { yep: true }
+    ];
+    return o;
+  }
+
+  describe('get', function() {
+    const o = doc();
+
+    it('`path` must be a string or array', function(done) {
+      assert.throws(function() {
+        mpath.get({}, o);
+      }, /Must be either string or array/);
+      assert.throws(function() {
+        mpath.get(4, o);
+      }, /Must be either string or array/);
+      assert.throws(function() {
+        mpath.get(function() {}, o);
+      }, /Must be either string or array/);
+      assert.throws(function() {
+        mpath.get(/asdf/, o);
+      }, /Must be either string or array/);
+      assert.throws(function() {
+        mpath.get(Math, o);
+      }, /Must be either string or array/);
+      assert.throws(function() {
+        mpath.get(Buffer, o);
+      }, /Must be either string or array/);
+      assert.doesNotThrow(function() {
+        mpath.get('string', o);
+      });
+      assert.doesNotThrow(function() {
+        mpath.get([], o);
+      });
+      done();
+    });
+
+    describe('without `special`', function() {
+      it('works', function(done) {
+        assert.equal('jiro', mpath.get('name', o));
+
+        assert.deepEqual(
+          { second: { third: [3, { name: 'aaron' }, 9] } }
+          , mpath.get('first', o)
+        );
+
+        assert.deepEqual(
+          { third: [3, { name: 'aaron' }, 9] }
+          , mpath.get('first.second', o)
+        );
+
+        assert.deepEqual(
+          [3, { name: 'aaron' }, 9]
+          , mpath.get('first.second.third', o)
+        );
+
+        assert.deepEqual(
+          3
+          , mpath.get('first.second.third.0', o)
+        );
+
+        assert.deepEqual(
+          9
+          , mpath.get('first.second.third.2', o)
+        );
+
+        assert.deepEqual(
+          { name: 'aaron' }
+          , mpath.get('first.second.third.1', o)
+        );
+
+        assert.deepEqual(
+          'aaron'
+          , mpath.get('first.second.third.1.name', o)
+        );
+
+        assert.deepEqual([
+          { name: 'one' },
+          { name: 'two', _doc: { name: '2' } },
+          { name: 'three',
+            comments: [{}, { comments: [{ val: 'twoo' }] }],
+            _doc: { name: '3', comments: [{}, { _doc: { comments: [{ val: 2 }] } }] } }],
+        mpath.get('comments', o));
+
+        assert.deepEqual({ name: 'one' }, mpath.get('comments.0', o));
+        assert.deepEqual('one', mpath.get('comments.0.name', o));
+        assert.deepEqual('two', mpath.get('comments.1.name', o));
+        assert.deepEqual('three', mpath.get('comments.2.name', o));
+
+        assert.deepEqual([{}, { comments: [{ val: 'twoo' }] }]
+          , mpath.get('comments.2.comments', o));
+
+        assert.deepEqual({ comments: [{ val: 'twoo' }] }
+          , mpath.get('comments.2.comments.1', o));
+
+        assert.deepEqual('twoo', mpath.get('comments.2.comments.1.comments.0.val', o));
+
+        done();
+      });
+
+      it('handles array.property dot-notation', function(done) {
+        assert.deepEqual(
+          ['one', 'two', 'three']
+          , mpath.get('comments.name', o)
+        );
+        done();
+      });
+
+      it('handles array.array notation', function(done) {
+        assert.deepEqual(
+          [undefined, undefined, [{}, { comments: [{ val: 'twoo' }] }]]
+          , mpath.get('comments.comments', o)
+        );
+        done();
+      });
+
+      it('handles prop.prop.prop.arrayProperty notation', function(done) {
+        assert.deepEqual(
+          [undefined, 'aaron', undefined]
+          , mpath.get('first.second.third.name', o)
+        );
+        assert.deepEqual(
+          [1, 'aaron', 1]
+          , mpath.get('first.second.third.name', o, function(v) {
+            return undefined === v ? 1 : v;
+          })
+        );
+        done();
+      });
+
+      it('handles array.prop.array', function(done) {
+        assert.deepEqual(
+          [[{ x: { b: [4, 6, 8] } }, { y: 10 }],
+            [{ x: { b: [1, 2, 3] } }, { x: { z: 10 } }, { x: { b: 'hi' } }],
+            [{ x: { b: null } }, { x: { b: [null, 1] } }],
+            [{ x: null }],
+            [{ y: 3 }],
+            [3, 0, null],
+            undefined
+          ]
+          , mpath.get('array.o.array', o)
+        );
+        done();
+      });
+
+      it('handles array.prop.array.index', function(done) {
+        assert.deepEqual(
+          [{ x: { b: [4, 6, 8] } },
+            { x: { b: [1, 2, 3] } },
+            { x: { b: null } },
+            { x: null },
+            { y: 3 },
+            3,
+            undefined
+          ]
+          , mpath.get('array.o.array.0', o)
+        );
+        done();
+      });
+
+      it('handles array.prop.array.index.prop', function(done) {
+        assert.deepEqual(
+          [{ b: [4, 6, 8] },
+            { b: [1, 2, 3] },
+            { b: null },
+            null,
+            undefined,
+            undefined,
+            undefined
+          ]
+          , mpath.get('array.o.array.0.x', o)
+        );
+        done();
+      });
+
+      it('handles array.prop.array.prop', function(done) {
+        assert.deepEqual(
+          [[undefined, 10],
+            [undefined, undefined, undefined],
+            [undefined, undefined],
+            [undefined],
+            [3],
+            [undefined, undefined, undefined],
+            undefined
+          ]
+          , mpath.get('array.o.array.y', o)
+        );
+        assert.deepEqual(
+          [[{ b: [4, 6, 8] }, undefined],
+            [{ b: [1, 2, 3] }, { z: 10 }, { b: 'hi' }],
+            [{ b: null }, { b: [null, 1] }],
+            [null],
+            [undefined],
+            [undefined, undefined, undefined],
+            undefined
+          ]
+          , mpath.get('array.o.array.x', o)
+        );
+        done();
+      });
+
+      it('handles array.prop.array.prop.prop', function(done) {
+        assert.deepEqual(
+          [[[4, 6, 8], undefined],
+            [[1, 2, 3], undefined, 'hi'],
+            [null, [null, 1]],
+            [null],
+            [undefined],
+            [undefined, undefined, undefined],
+            undefined
+          ]
+          , mpath.get('array.o.array.x.b', o)
+        );
+        done();
+      });
+
+      it('handles array.prop.array.prop.prop.index', function(done) {
+        assert.deepEqual(
+          [[6, undefined],
+            [2, undefined, 'i'], // undocumented feature (string indexing)
+            [null, 1],
+            [null],
+            [undefined],
+            [undefined, undefined, undefined],
+            undefined
+          ]
+          , mpath.get('array.o.array.x.b.1', o)
+        );
+        assert.deepEqual(
+          [[6, 0],
+            [2, 0, 'i'], // undocumented feature (string indexing)
+            [null, 1],
+            [null],
+            [0],
+            [0, 0, 0],
+            0
+          ]
+          , mpath.get('array.o.array.x.b.1', o, function(v) {
+            return undefined === v ? 0 : v;
+          })
+        );
+        done();
+      });
+
+      it('handles array.index.prop.prop', function(done) {
+        assert.deepEqual(
+          [{ x: { b: [1, 2, 3] } }, { x: { z: 10 } }, { x: { b: 'hi' } }]
+          , mpath.get('array.1.o.array', o)
+        );
+        assert.deepEqual(
+          ['hi', 'hi', 'hi']
+          , mpath.get('array.1.o.array', o, function(v) {
+            if (Array.isArray(v)) {
+              return v.map(function(val) {
+                return 'hi';
+              });
+            }
+            return v;
+          })
+        );
+        done();
+      });
+
+      it('handles array.array.index', function(done) {
+        assert.deepEqual(
+          [{ a: { c: 48 } }, undefined]
+          , mpath.get('arr.arr.1', o)
+        );
+        assert.deepEqual(
+          ['woot', undefined]
+          , mpath.get('arr.arr.1', o, function(v) {
+            if (v && v.a && v.a.c) return 'woot';
+            return v;
+          })
+        );
+        done();
+      });
+
+      it('handles array.array.index.prop', function(done) {
+        assert.deepEqual(
+          [{ c: 48 }, 'woot']
+          , mpath.get('arr.arr.1.a', o, function(v) {
+            if (undefined === v) return 'woot';
+            return v;
+          })
+        );
+        assert.deepEqual(
+          [{ c: 48 }, undefined]
+          , mpath.get('arr.arr.1.a', o)
+        );
+        mpath.set('arr.arr.1.a', [{ c: 49 }, undefined], o);
+        assert.deepEqual(
+          [{ c: 49 }, undefined]
+          , mpath.get('arr.arr.1.a', o)
+        );
+        mpath.set('arr.arr.1.a', [{ c: 48 }, undefined], o);
+        done();
+      });
+
+      it('handles array.array.index.prop.prop', function(done) {
+        assert.deepEqual(
+          [48, undefined]
+          , mpath.get('arr.arr.1.a.c', o)
+        );
+        assert.deepEqual(
+          [48, 'woot']
+          , mpath.get('arr.arr.1.a.c', o, function(v) {
+            if (undefined === v) return 'woot';
+            return v;
+          })
+        );
+        done();
+      });
+
+    });
+
+    describe('with `special`', function() {
+      describe('that is a string', function() {
+        it('works', function(done) {
+          assert.equal('jiro', mpath.get('name', o, special));
+
+          assert.deepEqual(
+            { second: { third: [3, { name: 'aaron' }, 9] } }
+            , mpath.get('first', o, special)
+          );
+
+          assert.deepEqual(
+            { third: [3, { name: 'aaron' }, 9] }
+            , mpath.get('first.second', o, special)
+          );
+
+          assert.deepEqual(
+            [3, { name: 'aaron' }, 9]
+            , mpath.get('first.second.third', o, special)
+          );
+
+          assert.deepEqual(
+            3
+            , mpath.get('first.second.third.0', o, special)
+          );
+
+          assert.deepEqual(
+            4
+            , mpath.get('first.second.third.0', o, special, function(v) {
+              return 3 === v ? 4 : v;
+            })
+          );
+
+          assert.deepEqual(
+            9
+            , mpath.get('first.second.third.2', o, special)
+          );
+
+          assert.deepEqual(
+            { name: 'aaron' }
+            , mpath.get('first.second.third.1', o, special)
+          );
+
+          assert.deepEqual(
+            'aaron'
+            , mpath.get('first.second.third.1.name', o, special)
+          );
+
+          assert.deepEqual([
+            { name: 'one' },
+            { name: 'two', _doc: { name: '2' } },
+            { name: 'three',
+              comments: [{}, { comments: [{ val: 'twoo' }] }],
+              _doc: { name: '3', comments: [{}, { _doc: { comments: [{ val: 2 }] } }] } }],
+          mpath.get('comments', o, special));
+
+          assert.deepEqual({ name: 'one' }, mpath.get('comments.0', o, special));
+          assert.deepEqual('one', mpath.get('comments.0.name', o, special));
+          assert.deepEqual('2', mpath.get('comments.1.name', o, special));
+          assert.deepEqual('3', mpath.get('comments.2.name', o, special));
+          assert.deepEqual('nice', mpath.get('comments.2.name', o, special, function(v) {
+            return '3' === v ? 'nice' : v;
+          }));
+
+          assert.deepEqual([{}, { _doc: { comments: [{ val: 2 }] } }]
+            , mpath.get('comments.2.comments', o, special));
+
+          assert.deepEqual({ _doc: { comments: [{ val: 2 }] } }
+            , mpath.get('comments.2.comments.1', o, special));
+
+          assert.deepEqual(2, mpath.get('comments.2.comments.1.comments.0.val', o, special));
+          done();
+        });
+
+        it('handles array.property dot-notation', function(done) {
+          assert.deepEqual(
+            ['one', '2', '3']
+            , mpath.get('comments.name', o, special)
+          );
+          assert.deepEqual(
+            ['one', 2, '3']
+            , mpath.get('comments.name', o, special, function(v) {
+              return '2' === v ? 2 : v;
+            })
+          );
+          done();
+        });
+
+        it('handles array.array notation', function(done) {
+          assert.deepEqual(
+            [undefined, undefined, [{}, { _doc: { comments: [{ val: 2 }] } }]]
+            , mpath.get('comments.comments', o, special)
+          );
+          done();
+        });
+
+        it('handles array.array.index.array', function(done) {
+          assert.deepEqual(
+            [undefined, undefined, [{ val: 2 }]]
+            , mpath.get('comments.comments.1.comments', o, special)
+          );
+          done();
+        });
+
+        it('handles array.array.index.array.prop', function(done) {
+          assert.deepEqual(
+            [undefined, undefined, [2]]
+            , mpath.get('comments.comments.1.comments.val', o, special)
+          );
+          assert.deepEqual(
+            ['nil', 'nil', [2]]
+            , mpath.get('comments.comments.1.comments.val', o, special, function(v) {
+              return undefined === v ? 'nil' : v;
+            })
+          );
+          done();
+        });
+      });
+
+      describe('that is a function', function() {
+        const special = function(obj, key) {
+          return obj[key];
+        };
+
+        it('works', function(done) {
+          assert.equal('jiro', mpath.get('name', o, special));
+
+          assert.deepEqual(
+            { second: { third: [3, { name: 'aaron' }, 9] } }
+            , mpath.get('first', o, special)
+          );
+
+          assert.deepEqual(
+            { third: [3, { name: 'aaron' }, 9] }
+            , mpath.get('first.second', o, special)
+          );
+
+          assert.deepEqual(
+            [3, { name: 'aaron' }, 9]
+            , mpath.get('first.second.third', o, special)
+          );
+
+          assert.deepEqual(
+            3
+            , mpath.get('first.second.third.0', o, special)
+          );
+
+          assert.deepEqual(
+            4
+            , mpath.get('first.second.third.0', o, special, function(v) {
+              return 3 === v ? 4 : v;
+            })
+          );
+
+          assert.deepEqual(
+            9
+            , mpath.get('first.second.third.2', o, special)
+          );
+
+          assert.deepEqual(
+            { name: 'aaron' }
+            , mpath.get('first.second.third.1', o, special)
+          );
+
+          assert.deepEqual(
+            'aaron'
+            , mpath.get('first.second.third.1.name', o, special)
+          );
+
+          assert.deepEqual([
+            { name: 'one' },
+            { name: 'two', _doc: { name: '2' } },
+            { name: 'three',
+              comments: [{}, { comments: [{ val: 'twoo' }] }],
+              _doc: { name: '3', comments: [{}, { _doc: { comments: [{ val: 2 }] } }] } }],
+          mpath.get('comments', o, special));
+
+          assert.deepEqual({ name: 'one' }, mpath.get('comments.0', o, special));
+          assert.deepEqual('one', mpath.get('comments.0.name', o, special));
+          assert.deepEqual('two', mpath.get('comments.1.name', o, special));
+          assert.deepEqual('three', mpath.get('comments.2.name', o, special));
+          assert.deepEqual('nice', mpath.get('comments.2.name', o, special, function(v) {
+            return 'three' === v ? 'nice' : v;
+          }));
+
+          assert.deepEqual([{}, { comments: [{ val: 'twoo' }] }]
+            , mpath.get('comments.2.comments', o, special));
+
+          assert.deepEqual({ comments: [{ val: 'twoo' }] }
+            , mpath.get('comments.2.comments.1', o, special));
+
+          assert.deepEqual('twoo', mpath.get('comments.2.comments.1.comments.0.val', o, special));
+
+          let overide = false;
+          assert.deepEqual('twoo', mpath.get('comments.8.comments.1.comments.0.val', o, function(obj, path) {
+            if (Array.isArray(obj) && 8 == path) {
+              overide = true;
+              return obj[2];
+            }
+            return obj[path];
+          }));
+          assert.ok(overide);
+
+          done();
+        });
+
+        it('in combination with map', function(done) {
+          const special = function(obj, key) {
+            if (Array.isArray(obj)) return obj[key];
+            return obj.mpath;
+          };
+          const map = function(val) {
+            return 'convert' == val
+              ? 'mpath'
+              : val;
+          };
+          const o = { mpath: [{ mpath: 'converse' }, { mpath: 'convert' }] };
+
+          assert.equal('mpath', mpath.get('something.1.kewl', o, special, map));
+          done();
+        });
+      });
+    });
+  });
+
+  describe('set', function() {
+    it('prevents writing to __proto__', function() {
+      const obj = {};
+      mpath.set('__proto__.x', 'foobar', obj);
+      assert.ok(!({}.x));
+
+      mpath.set('constructor.prototype.x', 'foobar', obj);
+      assert.ok(!({}.x));
+    });
+
+    describe('without `special`', function() {
+      const o = doc();
+
+      it('works', function(done) {
+        mpath.set('name', 'a new val', o, function(v) {
+          return 'a new val' === v ? 'changed' : v;
+        });
+        assert.deepEqual('changed', o.name);
+
+        mpath.set('name', 'changed', o);
+        assert.deepEqual('changed', o.name);
+
+        mpath.set('first.second.third', [1, { name: 'x' }, 9], o);
+        assert.deepEqual([1, { name: 'x' }, 9], o.first.second.third);
+
+        mpath.set('first.second.third.1.name', 'y', o);
+        assert.deepEqual([1, { name: 'y' }, 9], o.first.second.third);
+
+        mpath.set('comments.1.name', 'ttwwoo', o);
+        assert.deepEqual({ name: 'ttwwoo', _doc: { name: '2' } }, o.comments[1]);
+
+        mpath.set('comments.2.comments.1.comments.0.expand', 'added', o);
+        assert.deepEqual(
+          { val: 'twoo', expand: 'added' }
+          , o.comments[2].comments[1].comments[0]);
+
+        mpath.set('comments.2.comments.1.comments.2', 'added', o);
+        assert.equal(3, o.comments[2].comments[1].comments.length);
+        assert.deepEqual(
+          { val: 'twoo', expand: 'added' }
+          , o.comments[2].comments[1].comments[0]);
+        assert.deepEqual(
+          undefined
+          , o.comments[2].comments[1].comments[1]);
+        assert.deepEqual(
+          'added'
+          , o.comments[2].comments[1].comments[2]);
+
+        done();
+      });
+
+      describe('array.path', function() {
+        describe('with single non-array value', function() {
+          it('works', function(done) {
+            mpath.set('arr.yep', false, o, function(v) {
+              return false === v ? true : v;
+            });
+            assert.deepEqual([
+              { yep: true, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] },
+              { yep: true }
+            ], o.arr);
+
+            mpath.set('arr.yep', false, o);
+
+            assert.deepEqual([
+              { yep: false, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] },
+              { yep: false }
+            ], o.arr);
+
+            done();
+          });
+        });
+        describe('with array of values', function() {
+          it('that are equal in length', function(done) {
+            mpath.set('arr.yep', ['one', 2], o, function(v) {
+              return 'one' === v ? 1 : v;
+            });
+            assert.deepEqual([
+              { yep: 1, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] },
+              { yep: 2 }
+            ], o.arr);
+            mpath.set('arr.yep', ['one', 2], o);
+
+            assert.deepEqual([
+              { yep: 'one', arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] },
+              { yep: 2 }
+            ], o.arr);
+
+            done();
+          });
+
+          it('that is less than length', function(done) {
+            mpath.set('arr.yep', [47], o, function(v) {
+              return 47 === v ? 4 : v;
+            });
+            assert.deepEqual([
+              { yep: 4, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] },
+              { yep: 2 }
+            ], o.arr);
+
+            mpath.set('arr.yep', [47], o);
+            assert.deepEqual([
+              { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] },
+              { yep: 2 }
+            ], o.arr);
+
+            done();
+          });
+
+          it('that is greater than length', function(done) {
+            mpath.set('arr.yep', [5, 6, 7], o, function(v) {
+              return 5 === v ? 'five' : v;
+            });
+            assert.deepEqual([
+              { yep: 'five', arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] },
+              { yep: 6 }
+            ], o.arr);
+
+            mpath.set('arr.yep', [5, 6, 7], o);
+            assert.deepEqual([
+              { yep: 5, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] },
+              { yep: 6 }
+            ], o.arr);
+
+            done();
+          });
+        });
+      });
+
+      describe('array.$.path', function() {
+        describe('with single non-array value', function() {
+          it('copies the value to each item in array', function(done) {
+            mpath.set('arr.$.yep', { xtra: 'double good' }, o, function(v) {
+              return v && v.xtra ? 'hi' : v;
+            });
+            assert.deepEqual([
+              { yep: 'hi', arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] },
+              { yep: 'hi' }
+            ], o.arr);
+
+            mpath.set('arr.$.yep', { xtra: 'double good' }, o);
+            assert.deepEqual([
+              { yep: { xtra: 'double good' }, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] },
+              { yep: { xtra: 'double good' } }
+            ], o.arr);
+
+            done();
+          });
+        });
+        describe('with array of values', function() {
+          it('copies the value to each item in array', function(done) {
+            mpath.set('arr.$.yep', [15], o, function(v) {
+              return v.length === 1 ? [] : v;
+            });
+            assert.deepEqual([
+              { yep: [], arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] },
+              { yep: [] }
+            ], o.arr);
+
+            mpath.set('arr.$.yep', [15], o);
+            assert.deepEqual([
+              { yep: [15], arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] },
+              { yep: [15] }
+            ], o.arr);
+
+            done();
+          });
+        });
+      });
+
+      describe('array.index.path', function() {
+        it('works', function(done) {
+          mpath.set('arr.1.yep', 0, o, function(v) {
+            return 0 === v ? 'zero' : v;
+          });
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] },
+            { yep: 'zero' }
+          ], o.arr);
+
+          mpath.set('arr.1.yep', 0, o);
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] },
+            { yep: 0 }
+          ], o.arr);
+
+          done();
+        });
+      });
+
+      describe('array.index.array.path', function() {
+        it('with single value', function(done) {
+          mpath.set('arr.0.arr.e', 35, o, function(v) {
+            return 35 === v ? 3 : v;
+          });
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: { b: 47 }, e: 3 }, { a: { c: 48 }, e: 3 }, { d: 'yep', e: 3 }] },
+            { yep: 0 }
+          ], o.arr);
+
+          mpath.set('arr.0.arr.e', 35, o);
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: { b: 47 }, e: 35 }, { a: { c: 48 }, e: 35 }, { d: 'yep', e: 35 }] },
+            { yep: 0 }
+          ], o.arr);
+
+          done();
+        });
+        it('with array', function(done) {
+          mpath.set('arr.0.arr.e', ['a', 'b'], o, function(v) {
+            return 'a' === v ? 'x' : v;
+          });
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: { b: 47 }, e: 'x' }, { a: { c: 48 }, e: 'b' }, { d: 'yep', e: 35 }] },
+            { yep: 0 }
+          ], o.arr);
+
+          mpath.set('arr.0.arr.e', ['a', 'b'], o);
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: { b: 47 }, e: 'a' }, { a: { c: 48 }, e: 'b' }, { d: 'yep', e: 35 }] },
+            { yep: 0 }
+          ], o.arr);
+
+          done();
+        });
+      });
+
+      describe('array.index.array.path.path', function() {
+        it('with single value', function(done) {
+          mpath.set('arr.0.arr.a.b', 36, o, function(v) {
+            return 36 === v ? 3 : v;
+          });
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: { b: 3 }, e: 'a' }, { a: { c: 48, b: 3 }, e: 'b' }, { d: 'yep', e: 35 }] },
+            { yep: 0 }
+          ], o.arr);
+
+          mpath.set('arr.0.arr.a.b', 36, o);
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: { b: 36 }, e: 'a' }, { a: { c: 48, b: 36 }, e: 'b' }, { d: 'yep', e: 35 }] },
+            { yep: 0 }
+          ], o.arr);
+
+          done();
+        });
+        it('with array', function(done) {
+          mpath.set('arr.0.arr.a.b', [1, 2, 3, 4], o, function(v) {
+            return 2 === v ? 'two' : v;
+          });
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: { b: 1 }, e: 'a' }, { a: { c: 48, b: 'two' }, e: 'b' }, { d: 'yep', e: 35 }] },
+            { yep: 0 }
+          ], o.arr);
+
+          mpath.set('arr.0.arr.a.b', [1, 2, 3, 4], o);
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: { b: 1 }, e: 'a' }, { a: { c: 48, b: 2 }, e: 'b' }, { d: 'yep', e: 35 }] },
+            { yep: 0 }
+          ], o.arr);
+
+          done();
+        });
+      });
+
+      describe('array.index.array.$.path.path', function() {
+        it('with single value', function(done) {
+          mpath.set('arr.0.arr.$.a.b', '$', o, function(v) {
+            return '$' === v ? 'dolla billz' : v;
+          });
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: { b: 'dolla billz' }, e: 'a' }, { a: { c: 48, b: 'dolla billz' }, e: 'b' }, { d: 'yep', e: 35 }] },
+            { yep: 0 }
+          ], o.arr);
+
+          mpath.set('arr.0.arr.$.a.b', '$', o);
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: { b: '$' }, e: 'a' }, { a: { c: 48, b: '$' }, e: 'b' }, { d: 'yep', e: 35 }] },
+            { yep: 0 }
+          ], o.arr);
+
+          done();
+        });
+        it('with array', function(done) {
+          mpath.set('arr.0.arr.$.a.b', [1], o, function(v) {
+            return Array.isArray(v) ? {} : v;
+          });
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: { b: {} }, e: 'a' }, { a: { c: 48, b: {} }, e: 'b' }, { d: 'yep', e: 35 }] },
+            { yep: 0 }
+          ], o.arr);
+
+          mpath.set('arr.0.arr.$.a.b', [1], o);
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: { b: [1] }, e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] },
+            { yep: 0 }
+          ], o.arr);
+
+          done();
+        });
+      });
+
+      describe('array.array.index.path', function() {
+        it('with single value', function(done) {
+          mpath.set('arr.arr.0.a', 'single', o, function(v) {
+            return 'single' === v ? 'double' : v;
+          });
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: 'double', e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] },
+            { yep: 0 }
+          ], o.arr);
+
+          mpath.set('arr.arr.0.a', 'single', o);
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: 'single', e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] },
+            { yep: 0 }
+          ], o.arr);
+
+          done();
+        });
+        it('with array', function(done) {
+          mpath.set('arr.arr.0.a', [4, 8, 15, 16, 23, 42], o, function(v) {
+            return 4 === v ? 3 : v;
+          });
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: 3, e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] },
+            { yep: false }
+          ], o.arr);
+
+          mpath.set('arr.arr.0.a', [4, 8, 15, 16, 23, 42], o);
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: 4, e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] },
+            { yep: false }
+          ], o.arr);
+
+          done();
+        });
+      });
+
+      describe('array.array.$.index.path', function() {
+        it('with single value', function(done) {
+          mpath.set('arr.arr.$.0.a', 'singles', o, function(v) {
+            return 0;
+          });
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: 0, e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] },
+            { yep: 0 }
+          ], o.arr);
+
+          mpath.set('arr.arr.$.0.a', 'singles', o);
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: 'singles', e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] },
+            { yep: 0 }
+          ], o.arr);
+
+          mpath.set('$.arr.arr.0.a', 'single', o);
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: 'single', e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] },
+            { yep: 0 }
+          ], o.arr);
+
+          done();
+        });
+        it('with array', function(done) {
+          mpath.set('arr.arr.$.0.a', [4, 8, 15, 16, 23, 42], o, function(v) {
+            return 'nope';
+          });
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: 'nope', e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] },
+            { yep: 0 }
+          ], o.arr);
+
+          mpath.set('arr.arr.$.0.a', [4, 8, 15, 16, 23, 42], o);
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: [4, 8, 15, 16, 23, 42], e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] },
+            { yep: 0 }
+          ], o.arr);
+
+          mpath.set('arr.$.arr.0.a', [4, 8, 15, 16, 23, 42, 108], o);
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: [4, 8, 15, 16, 23, 42, 108], e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] },
+            { yep: 0 }
+          ], o.arr);
+
+          done();
+        });
+      });
+
+      describe('array.array.path.index', function() {
+        it('with single value', function(done) {
+          mpath.set('arr.arr.a.7', 47, o, function(v) {
+            return 1;
+          });
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: [4, 8, 15, 16, 23, 42, 108, 1], e: 'a' }, { a: { c: 48, b: [1], 7: 1 }, e: 'b' }, { d: 'yep', e: 35 }] },
+            { yep: 0 }
+          ], o.arr);
+
+          mpath.set('arr.arr.a.7', 47, o);
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: [4, 8, 15, 16, 23, 42, 108, 47], e: 'a' }, { a: { c: 48, b: [1], 7: 47 }, e: 'b' }, { d: 'yep', e: 35 }] },
+            { yep: 0 }
+          ], o.arr);
+
+          done();
+        });
+        it('with array', function(done) {
+          o.arr[1].arr = [{ a: [] }, { a: [] }, { a: null }];
+          mpath.set('arr.arr.a.7', [[null, 46], [undefined, 'woot']], o);
+
+          const a1 = [];
+          const a2 = [];
+          a1[7] = undefined;
+          a2[7] = 'woot';
+
+          assert.deepEqual([
+            { yep: [15], arr: [{ a: [4, 8, 15, 16, 23, 42, 108, null], e: 'a' }, { a: { c: 48, b: [1], 7: 46 }, e: 'b' }, { d: 'yep', e: 35 }] },
+            { yep: 0, arr: [{ a: a1 }, { a: a2 }, { a: null }] }
+          ], o.arr);
+
+          done();
+        });
+      });
+
+      describe('handles array.array.path', function() {
+        it('with single', function(done) {
+          o.arr[1].arr = [{}, {}];
+          assert.deepEqual([{}, {}], o.arr[1].arr);
+          o.arr.push({ arr: 'something else' });
+          o.arr.push({ arr: ['something else'] });
+          o.arr.push({ arr: [[]] });
+          o.arr.push({ arr: [5] });
+
+          const weird = [];
+          weird.e = 'xmas';
+
+          // test
+          mpath.set('arr.arr.e', 47, o, function(v) {
+            return 'xmas';
+          });
+          assert.deepEqual([
+            { yep: [15], arr: [
+              { a: [4, 8, 15, 16, 23, 42, 108, null], e: 'xmas' },
+              { a: { c: 48, b: [1], 7: 46 }, e: 'xmas' },
+              { d: 'yep', e: 'xmas' }
+            ]
+            },
+            { yep: 0, arr: [{ e: 'xmas' }, { e: 'xmas' }] },
+            { arr: 'something else' },
+            { arr: ['something else'] },
+            { arr: [weird] },
+            { arr: [5] }
+          ]
+          , o.arr);
+
+          weird.e = 47;
+
+          mpath.set('arr.arr.e', 47, o);
+          assert.deepEqual([
+            { yep: [15], arr: [
+              { a: [4, 8, 15, 16, 23, 42, 108, null], e: 47 },
+              { a: { c: 48, b: [1], 7: 46 }, e: 47 },
+              { d: 'yep', e: 47 }
+            ]
+            },
+            { yep: 0, arr: [{ e: 47 }, { e: 47 }] },
+            { arr: 'something else' },
+            { arr: ['something else'] },
+            { arr: [weird] },
+            { arr: [5] }
+          ]
+          , o.arr);
+
+          done();
+        });
+        it('with arrays', function(done) {
+          mpath.set('arr.arr.e', [[1, 2, 3], [4, 5], null, [], [6], [7, 8, 9]], o, function(v) {
+            return 10;
+          });
+
+          const weird = [];
+          weird.e = 10;
+
+          assert.deepEqual([
+            { yep: [15], arr: [
+              { a: [4, 8, 15, 16, 23, 42, 108, null], e: 10 },
+              { a: { c: 48, b: [1], 7: 46 }, e: 10 },
+              { d: 'yep', e: 10 }
+            ]
+            },
+            { yep: 0, arr: [{ e: 10 }, { e: 10 }] },
+            { arr: 'something else' },
+            { arr: ['something else'] },
+            { arr: [weird] },
+            { arr: [5] }
+          ]
+          , o.arr);
+
+          mpath.set('arr.arr.e', [[1, 2, 3], [4, 5], null, [], [6], [7, 8, 9]], o);
+
+          weird.e = 6;
+
+          assert.deepEqual([
+            { yep: [15], arr: [
+              { a: [4, 8, 15, 16, 23, 42, 108, null], e: 1 },
+              { a: { c: 48, b: [1], 7: 46 }, e: 2 },
+              { d: 'yep', e: 3 }
+            ]
+            },
+            { yep: 0, arr: [{ e: 4 }, { e: 5 }] },
+            { arr: 'something else' },
+            { arr: ['something else'] },
+            { arr: [weird] },
+            { arr: [5] }
+          ]
+          , o.arr);
+
+          done();
+        });
+      });
+    });
+
+    describe('with `special`', function() {
+      const o = doc();
+
+      it('works', function(done) {
+        mpath.set('name', 'chan', o, special, function(v) {
+          return 'hi';
+        });
+        assert.deepEqual('hi', o.name);
+
+        mpath.set('name', 'changer', o, special);
+        assert.deepEqual('changer', o.name);
+
+        mpath.set('first.second.third', [1, { name: 'y' }, 9], o, special);
+        assert.deepEqual([1, { name: 'y' }, 9], o.first.second.third);
+
+        mpath.set('first.second.third.1.name', 'z', o, special);
+        assert.deepEqual([1, { name: 'z' }, 9], o.first.second.third);
+
+        mpath.set('comments.1.name', 'ttwwoo', o, special);
+        assert.deepEqual({ name: 'two', _doc: { name: 'ttwwoo' } }, o.comments[1]);
+
+        mpath.set('comments.2.comments.1.comments.0.expander', 'adder', o, special, function(v) {
+          return 'super';
+        });
+        assert.deepEqual(
+          { val: 2, expander: 'super' }
+          , o.comments[2]._doc.comments[1]._doc.comments[0]);
+
+        mpath.set('comments.2.comments.1.comments.0.expander', 'adder', o, special);
+        assert.deepEqual(
+          { val: 2, expander: 'adder' }
+          , o.comments[2]._doc.comments[1]._doc.comments[0]);
+
+        mpath.set('comments.2.comments.1.comments.2', 'set', o, special);
+        assert.equal(3, o.comments[2]._doc.comments[1]._doc.comments.length);
+        assert.deepEqual(
+          { val: 2, expander: 'adder' }
+          , o.comments[2]._doc.comments[1]._doc.comments[0]);
+        assert.deepEqual(
+          undefined
+          , o.comments[2]._doc.comments[1]._doc.comments[1]);
+        assert.deepEqual(
+          'set'
+          , o.comments[2]._doc.comments[1]._doc.comments[2]);
+        done();
+      });
+
+      describe('array.path', function() {
+        describe('with single non-array value', function() {
+          it('works', function(done) {
+            o.arr[1]._doc = { special: true };
+
+            mpath.set('arr.yep', false, o, special, function(v) {
+              return 'yes';
+            });
+            assert.deepEqual([
+              { yep: 'yes', arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] },
+              { yep: true, _doc: { special: true, yep: 'yes' } }
+            ], o.arr);
+
+            mpath.set('arr.yep', false, o, special);
+            assert.deepEqual([
+              { yep: false, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] },
+              { yep: true, _doc: { special: true, yep: false } }
+            ], o.arr);
+
+            done();
+          });
+        });
+        describe('with array of values', function() {
+          it('that are equal in length', function(done) {
+            mpath.set('arr.yep', ['one', 2], o, special, function(v) {
+              return 2 === v ? 20 : v;
+            });
+            assert.deepEqual([
+              { yep: 'one', arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] },
+              { yep: true, _doc: { special: true, yep: 20 } }
+            ], o.arr);
+
+            mpath.set('arr.yep', ['one', 2], o, special);
+            assert.deepEqual([
+              { yep: 'one', arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] },
+              { yep: true, _doc: { special: true, yep: 2 } }
+            ], o.arr);
+
+            done();
+          });
+
+          it('that is less than length', function(done) {
+            mpath.set('arr.yep', [47], o, special, function(v) {
+              return 80;
+            });
+            assert.deepEqual([
+              { yep: 80, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] },
+              { yep: true, _doc: { special: true, yep: 2 } }
+            ], o.arr);
+
+            mpath.set('arr.yep', [47], o, special);
+            assert.deepEqual([
+              { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] },
+              { yep: true, _doc: { special: true, yep: 2 } }
+            ], o.arr);
+
+            // add _doc to first element
+            o.arr[0]._doc = { yep: 46, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] };
+
+            mpath.set('arr.yep', [20], o, special);
+            assert.deepEqual([
+              { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], _doc: { yep: 20, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] } },
+              { yep: true, _doc: { special: true, yep: 2 } }
+            ], o.arr);
+
+            done();
+          });
+
+          it('that is greater than length', function(done) {
+            mpath.set('arr.yep', [5, 6, 7], o, special, function() {
+              return 'x';
+            });
+            assert.deepEqual([
+              { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], _doc: { yep: 'x', arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] } },
+              { yep: true, _doc: { special: true, yep: 'x' } }
+            ], o.arr);
+
+            mpath.set('arr.yep', [5, 6, 7], o, special);
+            assert.deepEqual([
+              { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], _doc: { yep: 5, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] } },
+              { yep: true, _doc: { special: true, yep: 6 } }
+            ], o.arr);
+
+            done();
+          });
+        });
+      });
+
+      describe('array.$.path', function() {
+        describe('with single non-array value', function() {
+          it('copies the value to each item in array', function(done) {
+            mpath.set('arr.$.yep', { xtra: 'double good' }, o, special, function(v) {
+              return 9;
+            });
+            assert.deepEqual([
+              { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+                _doc: { yep: 9, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] } },
+              { yep: true, _doc: { special: true, yep: 9 } }
+            ], o.arr);
+
+            mpath.set('arr.$.yep', { xtra: 'double good' }, o, special);
+            assert.deepEqual([
+              { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+                _doc: { yep: { xtra: 'double good' }, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] } },
+              { yep: true, _doc: { special: true, yep: { xtra: 'double good' } } }
+            ], o.arr);
+
+            done();
+          });
+        });
+        describe('with array of values', function() {
+          it('copies the value to each item in array', function(done) {
+            mpath.set('arr.$.yep', [15], o, special, function(v) {
+              return 'array';
+            });
+            assert.deepEqual([
+              { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+                _doc: { yep: 'array', arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] } },
+              { yep: true, _doc: { special: true, yep: 'array' } }
+            ], o.arr);
+
+            mpath.set('arr.$.yep', [15], o, special);
+            assert.deepEqual([
+              { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+                _doc: { yep: [15], arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] } },
+              { yep: true, _doc: { special: true, yep: [15] } }
+            ], o.arr);
+
+            done();
+          });
+        });
+      });
+
+      describe('array.index.path', function() {
+        it('works', function(done) {
+          mpath.set('arr.1.yep', 0, o, special, function(v) {
+            return 1;
+          });
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] } },
+            { yep: true, _doc: { special: true, yep: 1 } }
+          ], o.arr);
+
+          mpath.set('arr.1.yep', 0, o, special);
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          done();
+        });
+      });
+
+      describe('array.index.array.path', function() {
+        it('with single value', function(done) {
+          mpath.set('arr.0.arr.e', 35, o, special, function(v) {
+            return 30;
+          });
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: { b: 47 }, e: 30 }, { a: { c: 48 }, e: 30 }, { d: 'yep', e: 30 }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          mpath.set('arr.0.arr.e', 35, o, special);
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: { b: 47 }, e: 35 }, { a: { c: 48 }, e: 35 }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          done();
+        });
+        it('with array', function(done) {
+          mpath.set('arr.0.arr.e', ['a', 'b'], o, special, function(v) {
+            return 'a' === v ? 'A' : v;
+          });
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: { b: 47 }, e: 'A' }, { a: { c: 48 }, e: 'b' }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          mpath.set('arr.0.arr.e', ['a', 'b'], o, special);
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: { b: 47 }, e: 'a' }, { a: { c: 48 }, e: 'b' }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          done();
+        });
+      });
+
+      describe('array.index.array.path.path', function() {
+        it('with single value', function(done) {
+          mpath.set('arr.0.arr.a.b', 36, o, special, function(v) {
+            return 20;
+          });
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: { b: 20 }, e: 'a' }, { a: { c: 48, b: 20 }, e: 'b' }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          mpath.set('arr.0.arr.a.b', 36, o, special);
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: { b: 36 }, e: 'a' }, { a: { c: 48, b: 36 }, e: 'b' }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          done();
+        });
+        it('with array', function(done) {
+          mpath.set('arr.0.arr.a.b', [1, 2, 3, 4], o, special, function(v) {
+            return v * 2;
+          });
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: { b: 2 }, e: 'a' }, { a: { c: 48, b: 4 }, e: 'b' }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          mpath.set('arr.0.arr.a.b', [1, 2, 3, 4], o, special);
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: { b: 1 }, e: 'a' }, { a: { c: 48, b: 2 }, e: 'b' }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          done();
+        });
+      });
+
+      describe('array.index.array.$.path.path', function() {
+        it('with single value', function(done) {
+          mpath.set('arr.0.arr.$.a.b', '$', o, special, function(v) {
+            return 'dollaz';
+          });
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: { b: 'dollaz' }, e: 'a' }, { a: { c: 48, b: 'dollaz' }, e: 'b' }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          mpath.set('arr.0.arr.$.a.b', '$', o, special);
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: { b: '$' }, e: 'a' }, { a: { c: 48, b: '$' }, e: 'b' }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          done();
+        });
+        it('with array', function(done) {
+          mpath.set('arr.0.arr.$.a.b', [1], o, special, function(v) {
+            return {};
+          });
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: { b: {} }, e: 'a' }, { a: { c: 48, b: {} }, e: 'b' }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          mpath.set('arr.0.arr.$.a.b', [1], o, special);
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: { b: [1] }, e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          done();
+        });
+      });
+
+      describe('array.array.index.path', function() {
+        it('with single value', function(done) {
+          mpath.set('arr.arr.0.a', 'single', o, special, function(v) {
+            return 88;
+          });
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: 88, e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          mpath.set('arr.arr.0.a', 'single', o, special);
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: 'single', e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          done();
+        });
+        it('with array', function(done) {
+          mpath.set('arr.arr.0.a', [4, 8, 15, 16, 23, 42], o, special, function(v) {
+            return v * 2;
+          });
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: 8, e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          mpath.set('arr.arr.0.a', [4, 8, 15, 16, 23, 42], o, special);
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: 4, e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          done();
+        });
+      });
+
+      describe('array.array.$.index.path', function() {
+        it('with single value', function(done) {
+          mpath.set('arr.arr.$.0.a', 'singles', o, special, function(v) {
+            return v.toUpperCase();
+          });
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: 'SINGLES', e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          mpath.set('arr.arr.$.0.a', 'singles', o, special);
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: 'singles', e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          mpath.set('$.arr.arr.0.a', 'single', o, special);
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: 'single', e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          done();
+        });
+        it('with array', function(done) {
+          mpath.set('arr.arr.$.0.a', [4, 8, 15, 16, 23, 42], o, special, function(v) {
+            return Array;
+          });
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: Array, e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          mpath.set('arr.arr.$.0.a', [4, 8, 15, 16, 23, 42], o, special);
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: [4, 8, 15, 16, 23, 42], e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          mpath.set('arr.$.arr.0.a', [4, 8, 15, 16, 23, 42, 108], o, special);
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: [4, 8, 15, 16, 23, 42, 108], e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          done();
+        });
+      });
+
+      describe('array.array.path.index', function() {
+        it('with single value', function(done) {
+          mpath.set('arr.arr.a.7', 47, o, special, function(v) {
+            return Object;
+          });
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: [4, 8, 15, 16, 23, 42, 108, Object], e: 'a' }, { a: { c: 48, b: [1], 7: Object }, e: 'b' }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          mpath.set('arr.arr.a.7', 47, o, special);
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: [4, 8, 15, 16, 23, 42, 108, 47], e: 'a' }, { a: { c: 48, b: [1], 7: 47 }, e: 'b' }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { special: true, yep: 0 } }
+          ], o.arr);
+
+          done();
+        });
+        it('with array', function(done) {
+          o.arr[1]._doc.arr = [{ a: [] }, { a: [] }, { a: null }];
+          mpath.set('arr.arr.a.7', [[null, 46], [undefined, 'woot']], o, special, function(v) {
+            return undefined === v ? 'nope' : v;
+          });
+
+          const a1 = [];
+          const a2 = [];
+          a1[7] = 'nope';
+          a2[7] = 'woot';
+
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: [4, 8, 15, 16, 23, 42, 108, null], e: 'a' }, { a: { c: 48, b: [1], 7: 46 }, e: 'b' }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { arr: [{ a: a1 }, { a: a2 }, { a: null }], special: true, yep: 0 } }
+          ], o.arr);
+
+          mpath.set('arr.arr.a.7', [[null, 46], [undefined, 'woot']], o, special);
+
+          a1[7] = undefined;
+
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: { yep: [15], arr: [{ a: [4, 8, 15, 16, 23, 42, 108, null], e: 'a' }, { a: { c: 48, b: [1], 7: 46 }, e: 'b' }, { d: 'yep', e: 35 }] } },
+            { yep: true, _doc: { arr: [{ a: a1 }, { a: a2 }, { a: null }], special: true, yep: 0 } }
+          ], o.arr);
+
+          done();
+        });
+      });
+
+      describe('handles array.array.path', function() {
+        it('with single', function(done) {
+          o.arr[1]._doc.arr = [{}, {}];
+          assert.deepEqual([{}, {}], o.arr[1]._doc.arr);
+          o.arr.push({ _doc: { arr: 'something else' } });
+          o.arr.push({ _doc: { arr: ['something else'] } });
+          o.arr.push({ _doc: { arr: [[]] } });
+          o.arr.push({ _doc: { arr: [5] } });
+
+          // test
+          mpath.set('arr.arr.e', 47, o, special);
+
+          const weird = [];
+          weird.e = 47;
+
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: {
+                yep: [15],
+                arr: [
+                  { a: [4, 8, 15, 16, 23, 42, 108, null], e: 47 },
+                  { a: { c: 48, b: [1], 7: 46 }, e: 47 },
+                  { d: 'yep', e: 47 }
+                ]
+              }
+            },
+            { yep: true,
+              _doc: {
+                arr: [
+                  { e: 47 },
+                  { e: 47 }
+                ],
+                special: true,
+                yep: 0
+              }
+            },
+            { _doc: { arr: 'something else' } },
+            { _doc: { arr: ['something else'] } },
+            { _doc: { arr: [weird] } },
+            { _doc: { arr: [5] } }
+          ]
+          , o.arr);
+
+          done();
+        });
+        it('with arrays', function(done) {
+          mpath.set('arr.arr.e', [[1, 2, 3], [4, 5], null, [], [6], [7, 8, 9]], o, special);
+
+          const weird = [];
+          weird.e = 6;
+
+          assert.deepEqual([
+            { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }],
+              _doc: {
+                yep: [15],
+                arr: [
+                  { a: [4, 8, 15, 16, 23, 42, 108, null], e: 1 },
+                  { a: { c: 48, b: [1], 7: 46 }, e: 2 },
+                  { d: 'yep', e: 3 }
+                ]
+              }
+            },
+            { yep: true,
+              _doc: {
+                arr: [
+                  { e: 4 },
+                  { e: 5 }
+                ],
+                special: true,
+                yep: 0
+              }
+            },
+            { _doc: { arr: 'something else' } },
+            { _doc: { arr: ['something else'] } },
+            { _doc: { arr: [weird] } },
+            { _doc: { arr: [5] } }
+          ]
+          , o.arr);
+
+          done();
+        });
+      });
+
+      describe('that is a function', function() {
+        describe('without map', function() {
+          it('works on array value', function(done) {
+            const o = { hello: { world: [{ how: 'are' }, { you: '?' }] } };
+            const special = function(obj, key, val) {
+              if (val) {
+                obj[key] = val;
+              } else {
+                return 'thing' == key
+                  ? obj.world
+                  : obj[key];
+              }
+            };
+            mpath.set('hello.thing.how', 'arrrr', o, special);
+            assert.deepEqual(o, { hello: { world: [{ how: 'arrrr' }, { you: '?', how: 'arrrr' }] } });
+            done();
+          });
+          it('works on non-array value', function(done) {
+            const o = { hello: { world: { how: 'are you' } } };
+            const special = function(obj, key, val) {
+              if (val) {
+                obj[key] = val;
+              } else {
+                return 'thing' == key
+                  ? obj.world
+                  : obj[key];
+              }
+            };
+            mpath.set('hello.thing.how', 'RU', o, special);
+            assert.deepEqual(o, { hello: { world: { how: 'RU' } } });
+            done();
+          });
+        });
+        it('works with map', function(done) {
+          const o = { hello: { world: [{ how: 'are' }, { you: '?' }] } };
+          const special = function(obj, key, val) {
+            if (val) {
+              obj[key] = val;
+            } else {
+              return 'thing' == key
+                ? obj.world
+                : obj[key];
+            }
+          };
+          const map = function(val) {
+            return 'convert' == val
+              ? 'ºº'
+              : val;
+          };
+          mpath.set('hello.thing.how', 'convert', o, special, map);
+          assert.deepEqual(o, { hello: { world: [{ how: 'ºº' }, { you: '?', how: 'ºº' }] } });
+          done();
+        });
+      });
+
+    });
+
+    describe('get/set integration', function() {
+      const o = doc();
+
+      it('works', function(done) {
+        const vals = mpath.get('array.o.array.x.b', o);
+
+        vals[0][0][2] = 10;
+        vals[1][0][1] = 0;
+        vals[1][1] = 'Rambaldi';
+        vals[1][2] = [12, 14];
+        vals[2] = [{ changed: true }, [null, ['changed', 'to', 'array']]];
+
+        mpath.set('array.o.array.x.b', vals, o);
+
+        const t = [
+          { o: { array: [{ x: { b: [4, 6, 10] } }, { y: 10 }] } },
+          { o: { array: [{ x: { b: [1, 0, 3] } }, { x: { b: 'Rambaldi', z: 10 } }, { x: { b: [12, 14] } }] } },
+          { o: { array: [{ x: { b: { changed: true } } }, { x: { b: [null, ['changed', 'to', 'array']] } }] } },
+          { o: { array: [{ x: null }] } },
+          { o: { array: [{ y: 3 }] } },
+          { o: { array: [3, 0, null] } },
+          { o: { name: 'ha' } }
+        ];
+        assert.deepEqual(t, o.array);
+        done();
+      });
+
+      it('array.prop', function(done) {
+        mpath.set('comments.name', ['this', 'was', 'changed'], o);
+
+        assert.deepEqual([
+          { name: 'this' },
+          { name: 'was', _doc: { name: '2' } },
+          { name: 'changed',
+            comments: [{}, { comments: [{ val: 'twoo' }] }],
+            _doc: { name: '3', comments: [{}, { _doc: { comments: [{ val: 2 }] } }] } }
+        ], o.comments);
+
+        mpath.set('comments.name', ['also', 'changed', 'this'], o, special);
+
+        assert.deepEqual([
+          { name: 'also' },
+          { name: 'was', _doc: { name: 'changed' } },
+          { name: 'changed',
+            comments: [{}, { comments: [{ val: 'twoo' }] }],
+            _doc: { name: 'this', comments: [{}, { _doc: { comments: [{ val: 2 }] } }] } }
+        ], o.comments);
+
+        done();
+      });
+
+      it('nested array', function(done) {
+        const obj = { arr: [[{ test: 41 }]] };
+        mpath.set('arr.test', [[42]], obj);
+        assert.deepEqual(obj.arr, [[{ test: 42 }]]);
+        done();
+      });
+    });
+
+    describe('multiple $ use', function() {
+      const o = doc();
+      it('is ok', function(done) {
+        assert.doesNotThrow(function() {
+          mpath.set('arr.$.arr.$.a', 35, o);
+        });
+        done();
+      });
+    });
+
+    it('has', function(done) {
+      assert.ok(mpath.has('a', { a: 1 }));
+      assert.ok(mpath.has('a', { a: undefined }));
+      assert.ok(!mpath.has('a', {}));
+      assert.ok(!mpath.has('a', null));
+
+      assert.ok(mpath.has('a.b', { a: { b: 1 } }));
+      assert.ok(mpath.has('a.b', { a: { b: undefined } }));
+      assert.ok(!mpath.has('a.b', { a: 1 }));
+      assert.ok(!mpath.has('a.b', { a: null }));
+
+      done();
+    });
+
+    it('underneath a map', function(done) {
+      if (!global.Map) {
+        done();
+        return;
+      }
+      assert.equal(mpath.get('a.b', { a: new Map([['b', 1]]) }), 1);
+
+      const m = new Map([['b', 1]]);
+      const obj = { a: m };
+      mpath.set('a.c', 2, obj);
+      assert.equal(m.get('c'), 2);
+
+      done();
+    });
+
+    it('unset', function(done) {
+      let o = { a: 1 };
+      mpath.unset('a', o);
+      assert.deepEqual(o, {});
+
+      o = { a: { b: 1 } };
+      mpath.unset('a.b', o);
+      assert.deepEqual(o, { a: {} });
+
+      o = { a: null };
+      mpath.unset('a.b', o);
+      assert.deepEqual(o, { a: null });
+
+      done();
+    });
+
+    it('unset with __proto__', function(done) {
+      // Should refuse to set __proto__
+      function Clazz() {}
+      Clazz.prototype.foobar = true;
+
+      mpath.unset('__proto__.foobar', new Clazz());
+      assert.ok(Clazz.prototype.foobar);
+
+      mpath.unset('constructor.prototype.foobar', new Clazz());
+      assert.ok(Clazz.prototype.foobar);
+
+      done();
+    });
+
+    it('get() underneath subclassed array', function(done) {
+      class MyArray extends Array {}
+
+      const obj = {
+        arr: new MyArray()
+      };
+      obj.arr.push({ test: 2 });
+
+      const arr = mpath.get('arr.test', obj);
+      assert.equal(arr.constructor.name, 'Array');
+      assert.ok(!(arr instanceof MyArray));
+
+      done();
+    });
+
+    it('ignores setting a nested path that doesnt exist', function(done) {
+      const o = doc();
+      assert.doesNotThrow(function() {
+        mpath.set('thing.that.is.new', 10, o);
+      });
+      done();
+    });
+  });
+});
diff --git a/backend/node_modules/mpath/test/stringToParts.js b/backend/node_modules/mpath/test/stringToParts.js
new file mode 100644
index 0000000..09940df
--- /dev/null
+++ b/backend/node_modules/mpath/test/stringToParts.js
@@ -0,0 +1,30 @@
+'use strict';
+
+const assert = require('assert');
+const stringToParts = require('../lib/stringToParts');
+
+describe('stringToParts', function() {
+  it('handles brackets for numbers', function() {
+    assert.deepEqual(stringToParts('list[0].name'), ['list', '0', 'name']);
+    assert.deepEqual(stringToParts('list[0][1].name'), ['list', '0', '1', 'name']);
+  });
+
+  it('handles dot notation', function() {
+    assert.deepEqual(stringToParts('a.b.c'), ['a', 'b', 'c']);
+    assert.deepEqual(stringToParts('a..b.d'), ['a', '', 'b', 'd']);
+  });
+
+  it('ignores invalid numbers in square brackets', function() {
+    assert.deepEqual(stringToParts('foo[1mystring]'), ['foo[1mystring]']);
+    assert.deepEqual(stringToParts('foo[1mystring].bar[1]'), ['foo[1mystring]', 'bar', '1']);
+    assert.deepEqual(stringToParts('foo[1mystring][2]'), ['foo[1mystring]', '2']);
+  });
+
+  it('handles empty string', function() {
+    assert.deepEqual(stringToParts(''), ['']);
+  });
+
+  it('handles trailing dot', function() {
+    assert.deepEqual(stringToParts('a.b.'), ['a', 'b', '']);
+  });
+});
\ No newline at end of file
diff --git a/backend/node_modules/mquery/.github/ISSUE_TEMPLATE.md b/backend/node_modules/mquery/.github/ISSUE_TEMPLATE.md
new file mode 100644
index 0000000..20412e6
--- /dev/null
+++ b/backend/node_modules/mquery/.github/ISSUE_TEMPLATE.md
@@ -0,0 +1,11 @@
+<!-- *Before creating an issue please make sure you are using the latest version of mquery -->
+
+**Do you want to request a *feature* or report a *bug*?**
+
+**What is the current behavior?**
+
+**If the current behavior is a bug, please provide the steps to reproduce.**
+
+**What is the expected behavior?**
+
+**What are the versions of Node.js and mquery are you are using? Note that "latest" is not a version.**
diff --git a/backend/node_modules/mquery/.github/PULL_REQUEST_TEMPLATE.md b/backend/node_modules/mquery/.github/PULL_REQUEST_TEMPLATE.md
new file mode 100644
index 0000000..eb1a69d
--- /dev/null
+++ b/backend/node_modules/mquery/.github/PULL_REQUEST_TEMPLATE.md
@@ -0,0 +1,9 @@
+<!-- Thanks for submitting a pull request! Please provide enough information so that others can review your pull request. The two fields below are mandatory.-->
+
+**Summary**
+
+<!-- Explain the **motivation** for making this change. What problem does the pull request solve? -->
+
+**Examples**
+
+<!-- If this code fixes a bug or adds a new feature, provide an example demonstrating the change, unless you added a test. -->
diff --git a/backend/node_modules/mquery/History.md b/backend/node_modules/mquery/History.md
new file mode 100644
index 0000000..da42c4d
--- /dev/null
+++ b/backend/node_modules/mquery/History.md
@@ -0,0 +1,384 @@
+5.0.0 / 2023-02-23
+==================
+ * BREAKING CHANGE: drop callback support #137 [hasezoey](https://github.com/hasezoey)
+ * BREAKING CHANGE: remove custom promise library support #137 [hasezoey](https://github.com/hasezoey)
+ * BREAKING CHANGE: remove long deprecated `update`, `remove` functions #136 [hasezoey](https://github.com/hasezoey)
+ * BREAKING CHANGE: remove collection ducktyping: first param to `mquery()` is now always the query filter #138
+ * feat: support MongoDB Node driver 5 #137 [hasezoey](https://github.com/hasezoey)
+
+4.0.3 / 2022-05-17
+==================
+ * fix: allow using `comment` with `findOneAndUpdate()`, `count()`, `distinct()` and `hint` with `findOneAndUpdate()` Automattic/mongoose#11793
+
+4.0.2 / 2022-01-23
+==================
+ * perf: replace regexp-clone with native functionality #131 [Uzlopak](https://github.com/Uzlopak)
+
+4.0.1 / 2022-01-20
+==================
+ * perf: remove sliced, add various microoptimizations #130 [Uzlopak](https://github.com/Uzlopak)
+ * refactor: convert NodeCollection to a class #128 [jimmywarting](https://github.com/jimmywarting)
+
+4.0.0 / 2021-08-24
+
+4.0.0-rc0 / 2021-08-19
+======================
+ * BREAKING CHANGE: drop support for Node < 12 #123
+ * BREAKING CHANGE: upgrade to mongodb driver 4.x: drop support for `findAndModify()`, use native `findOneAndUpdate/Delete` #124
+ * BREAKING CHANGE: rename findStream -> findCursor #124
+ * BREAKING CHANGE: use native ES6 promises by default, remove bluebird dependency #123
+
+3.2.5 / 2021-03-29
+==================
+ * fix(utils): make `mergeClone()` skip special properties like `__proto__` #121 [zpbrent](https://github.com/zpbrent)
+
+3.2.4 / 2021-02-12
+==================
+ * fix(utils): make clone() only copy own properties Automattic/mongoose#9876
+
+3.2.3 / 2020-12-10
+==================
+ * fix(utils): avoid copying special properties like `__proto__` when merging and cloning. Fix CVE-2020-35149
+
+3.2.2 / 2019-09-22
+==================
+ * fix: dont re-call setOptions() when pulling base class options Automattic/mongoose#8159
+
+3.2.1 / 2018-08-24
+==================
+ * chore: upgrade deps
+
+3.2.0 / 2018-08-24
+==================
+ * feat: add $useProjection to opt in to using `projection` instead of `fields` re: MongoDB deprecation warnings Automattic/mongoose#6880
+
+3.1.2 / 2018-08-01
+==================
+ * chore: move eslint to devDependencies #110 [jakesjews](https://github.com/jakesjews)
+
+3.1.1 / 2018-07-30
+==================
+ * chore: add eslint #107 [Fonger](https://github.com/Fonger)
+ * docs: clean up readConcern docs #106 [Fonger](https://github.com/Fonger)
+
+3.1.0 / 2018-07-29
+==================
+ * feat: add `readConcern()` helper #105 [Fonger](https://github.com/Fonger)
+ * feat: add `maxTimeMS()` as alias of `maxTime()` #105 [Fonger](https://github.com/Fonger)
+ * feat: add `collation()` helper #105 [Fonger](https://github.com/Fonger)
+
+3.0.1 / 2018-07-02
+==================
+ * fix: parse sort array options correctly #103 #102 [Fonger](https://github.com/Fonger)
+
+3.0.0 / 2018-01-20
+==================
+ * chore: upgrade deps and add nsp
+
+3.0.0-rc0 / 2017-12-06
+======================
+ * BREAKING CHANGE: remove support for node < 4
+ * BREAKING CHANGE: remove support for retainKeyOrder, will always be true by default re: Automattic/mongoose#2749
+
+2.3.3 / 2017-11-19
+==================
+ * fixed; catch sync errors in cursor.toArray() re: Automattic/mongoose#5812
+
+2.3.2 / 2017-09-27
+==================
+ * fixed; bumped debug -> 2.6.9 re: #89
+
+2.3.1 / 2017-05-22
+==================
+ * fixed; bumped debug -> 2.6.7 re: #86
+
+2.3.0 / 2017-03-05
+==================
+ * added; replaceOne function
+ * added; deleteOne and deleteMany functions
+
+2.2.3 / 2017-01-31
+==================
+ * fixed; throw correct error when passing incorrectly formatted array to sort()
+
+2.2.2 / 2017-01-31
+==================
+ * fixed; allow passing maps to sort()
+
+2.2.1 / 2017-01-29
+==================
+ * fixed; allow passing string to hint()
+
+2.2.0 / 2017-01-08
+==================
+ * added; updateOne and updateMany functions
+
+2.1.0 / 2016-12-22
+==================
+ * added; ability to pass an array to select() #81 [dciccale](https://github.com/dciccale)
+
+2.0.0 / 2016-09-25
+==================
+ * added; support for mongodb driver 2.0 streams
+
+1.12.0 / 2016-09-25
+===================
+ * added; `retainKeyOrder` option re: Automattic/mongoose#4542
+
+1.11.0 / 2016-06-04
+===================
+ * added; `.minDistance()` helper and minDistance for `.near()` Automattic/mongoose#4179
+
+1.10.1 / 2016-04-26
+===================
+ * fixed; ensure conditions is an object before assigning #75
+
+1.10.0 / 2016-03-16
+==================
+
+ * updated; bluebird to latest 2.10.2 version #74 [matskiv](https://github.com/matskiv)
+
+1.9.0 / 2016-03-15
+==================
+ * added; `.eq` as a shortcut for `.equals` #72 [Fonger](https://github.com/Fonger)
+ * added; ability to use array syntax for sort re: https://jira.mongodb.org/browse/NODE-578 #67
+
+1.8.0 / 2016-03-01
+==================
+ * fixed; dont throw an error if count used with sort or select Automattic/mongoose#3914
+
+1.7.0 / 2016-02-23
+==================
+ * fixed; don't treat objects with a length property as argument objects #70
+ * added; `.findCursor()` method #69 [nswbmw](https://github.com/nswbmw)
+ * added; `_compiledUpdate` property #68 [nswbmw](https://github.com/nswbmw)
+
+1.6.2 / 2015-07-12
+==================
+
+ * fixed; support exec cb being called synchronously #66
+
+1.6.1 / 2015-06-16
+==================
+
+ * fixed; do not treat $meta projection as inclusive [vkarpov15](https://github.com/vkarpov15)
+
+1.6.0 / 2015-05-27
+==================
+
+ * update dependencies #65 [bachp](https://github.com/bachp)
+
+1.5.0 / 2015-03-31
+==================
+
+ * fixed; debug output
+ * fixed; allow hint usage with count #61 [trueinsider](https://github.com/trueinsider)
+
+1.4.0 / 2015-03-29
+==================
+
+ * added; object support to slice() #60 [vkarpov15](https://github.com/vkarpov15)
+ * debug; improved output #57 [flyvictor](https://github.com/flyvictor)
+
+1.3.0 / 2014-11-06
+==================
+
+ * added; setTraceFunction() #53 from [jlai](https://github.com/jlai)
+
+1.2.1 / 2014-09-26
+==================
+
+ * fixed; distinct assignment in toConstructor() #51 from [esco](https://github.com/esco)
+
+1.2.0 / 2014-09-18
+==================
+
+ * added; stream() support for find()
+
+1.1.0 / 2014-09-15
+==================
+
+ * add #then for co / koa support
+ * start checking code coverage
+
+1.0.0 / 2014-07-07
+==================
+
+ * Remove broken require() calls until they're actually implemented #48 [vkarpov15](https://github.com/vkarpov15)
+
+0.9.0 / 2014-05-22
+==================
+
+ * added; thunk() support
+ * release 0.8.0
+
+0.8.0 / 2014-05-15
+==================
+
+ * added; support for maxTimeMS #44 [yoitsro](https://github.com/yoitsro)
+ * updated; devDependency (driver to 1.4.4)
+
+0.7.0 / 2014-05-02
+==================
+
+ * fixed; pass $maxDistance in $near object as described in docs #43 [vkarpov15](https://github.com/vkarpov15)
+ * fixed; cloning buffers #42 [gjohnson](https://github.com/gjohnson)
+ * tests; a little bit more `mongodb` agnostic #34 [refack](https://github.com/refack)
+
+0.6.0 / 2014-04-01
+==================
+
+ * fixed; Allow $meta args in sort() so text search sorting works #37 [vkarpov15](https://github.com/vkarpov15)
+
+0.5.3 / 2014-02-22
+==================
+
+ * fixed; cloning mongodb.Binary
+
+0.5.2 / 2014-01-30
+==================
+
+ * fixed; cloning ObjectId constructors
+ * fixed; cloning of ReadPreferences #30 [ashtuchkin](https://github.com/ashtuchkin)
+ * tests; use specific mongodb version #29 [AvianFlu](https://github.com/AvianFlu)
+ * tests; remove dependency on ObjectId #28 [refack](https://github.com/refack)
+ * tests; add failing ReadPref test
+
+0.5.1 / 2014-01-17
+==================
+
+ * added; deprecation notice to tags parameter #27 [ashtuchkin](https://github.com/ashtuchkin)
+ * readme; add links
+
+0.5.0 / 2014-01-16
+==================
+
+ * removed; mongodb driver dependency #26 [ashtuchkin](https://github.com/ashtuchkin)
+ * removed; first class support of read preference tags #26 (still supported though) [ashtuchkin](https://github.com/ashtuchkin)
+ * added; better ObjectId clone support
+ * fixed; cloning objects that have no constructor #21
+ * docs; cleaned up [ashtuchkin](https://github.com/ashtuchkin)
+
+0.4.2 / 2014-01-08
+==================
+
+ * updated; debug module 0.7.4 [refack](https://github.com/refack)
+
+0.4.1 / 2014-01-07
+==================
+
+ * fixed; inclusive/exclusive logic
+
+0.4.0 / 2014-01-06
+==================
+
+ * added; selected()
+ * added; selectedInclusively()
+ * added; selectedExclusively()
+
+0.3.3 / 2013-11-14
+==================
+
+ * Fix Mongo DB Dependency #20 [rschmukler](https://github.com/rschmukler)
+
+0.3.2 / 2013-09-06
+==================
+
+  * added; geometry support for near()
+
+0.3.1 / 2013-08-22
+==================
+
+  * fixed; update retains key order #19
+
+0.3.0 / 2013-08-22
+==================
+
+  * less hardcoded isNode env detection #18 [vshulyak](https://github.com/vshulyak)
+  * added; validation of findAndModify varients
+  * clone update doc before execution
+  * stricter env checks
+
+0.2.7 / 2013-08-2
+==================
+
+  * Now support GeoJSON point values for Query#near
+
+0.2.6 / 2013-07-30
+==================
+
+  * internally, 'asc' and 'desc' for sorts are now converted into 1 and -1, respectively
+
+0.2.5 / 2013-07-30
+==================
+
+  * updated docs
+  * changed internal representation of `sort` to use objects instead of arrays
+
+0.2.4 / 2013-07-25
+==================
+
+  * updated; sliced to 0.0.5
+
+0.2.3 / 2013-07-09
+==================
+
+  * now using a callback in collection.find instead of directly calling toArray() on the cursor [ebensing](https://github.com/ebensing)
+
+0.2.2 / 2013-07-09
+==================
+
+  * now exposing mongodb export to allow for better testing [ebensing](https://github.com/ebensing)
+
+0.2.1 / 2013-07-08
+==================
+
+  * select no longer accepts arrays as parameters [ebensing](https://github.com/ebensing)
+
+0.2.0 / 2013-07-05
+==================
+
+  * use $geoWithin by default
+
+0.1.2 / 2013-07-02
+==================
+
+  * added use$geoWithin flag [ebensing](https://github.com/ebensing)
+  * fix read preferences typo [ebensing](https://github.com/ebensing)
+  * fix reference to old param name in exists() [ebensing](https://github.com/ebensing)
+
+0.1.1 / 2013-06-24
+==================
+
+  * fixed; $intersects -> $geoIntersects #14 [ebensing](https://github.com/ebensing)
+  * fixed; Retain key order when copying objects #15 [ebensing](https://github.com/ebensing)
+  * bump mongodb dev dep
+
+0.1.0 / 2013-05-06
+==================
+
+  * findAndModify; return the query
+  * move mquery.proto.canMerge to mquery.canMerge
+  * overwrite option now works with non-empty objects
+  * use strict mode
+  * validate count options
+  * validate distinct options
+  * add aggregate to base collection methods
+  * clone merge arguments
+  * clone merged update arguments
+  * move subclass to mquery.prototype.toConstructor
+  * fixed; maxScan casing
+  * use regexp-clone
+  * added; geometry/intersects support
+  * support $and
+  * near: do not use "radius"
+  * callbacks always fire on next turn of loop
+  * defined collection interface
+  * remove time from tests
+  * clarify goals
+  * updated docs;
+
+0.0.1 / 2012-12-15
+==================
+
+  * initial release
diff --git a/backend/node_modules/mquery/LICENSE b/backend/node_modules/mquery/LICENSE
new file mode 100644
index 0000000..38c529d
--- /dev/null
+++ b/backend/node_modules/mquery/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2012 [Aaron Heckmann](aaron.heckmann+github@gmail.com)
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/mquery/README.md b/backend/node_modules/mquery/README.md
new file mode 100644
index 0000000..aa3b82e
--- /dev/null
+++ b/backend/node_modules/mquery/README.md
@@ -0,0 +1,1247 @@
+# mquery
+
+`mquery` is a fluent mongodb query builder designed to run in multiple environments.
+
+[![Build Status](https://travis-ci.org/aheckmann/mquery.svg?branch=master)](https://travis-ci.org/aheckmann/mquery)
+[![NPM version](https://badge.fury.io/js/mquery.svg)](http://badge.fury.io/js/mquery)
+
+[![npm](https://nodei.co/npm/mquery.png)](https://www.npmjs.com/package/mquery)
+
+## Features
+
+- fluent query builder api
+- custom base query support
+- MongoDB 2.4 geoJSON support
+- method + option combinations validation
+- node.js driver compatibility
+- environment detection
+- [debug](https://github.com/visionmedia/debug) support
+- separated collection implementations for maximum flexibility
+
+## Use
+
+```js
+const mongo = require('mongodb');
+
+const client = new mongo.MongoClient(uri);
+await client.connect();
+// get a collection
+const collection = client.collection('artists');
+
+// pass it to the constructor
+await mquery(collection).find({...});
+
+// or pass it to the collection method
+const docs = await mquery().find({...}).collection(collection);
+
+// or better yet, create a custom query constructor that has it always set
+const Artist = mquery(collection).toConstructor();
+const docs = await Artist().find(...).where(...);
+```
+
+`mquery` requires a collection object to work with. In the example above we just pass the collection object created using the official [MongoDB driver](https://github.com/mongodb/node-mongodb-native).
+
+## Fluent API
+
+- [mquery](#mquery)
+  - [Features](#features)
+  - [Use](#use)
+  - [Fluent API](#fluent-api)
+  - [Helpers](#helpers)
+    - [find()](#find)
+    - [findOne()](#findone)
+    - [count()](#count)
+    - [findOneAndUpdate()](#findoneandupdate)
+        - [findOneAndUpdate() options](#findoneandupdate-options)
+    - [findOneAndRemove()](#findoneandremove)
+        - [findOneAndRemove() options](#findoneandremove-options)
+    - [distinct()](#distinct)
+    - [exec()](#exec)
+    - [stream()](#stream)
+    - [all()](#all)
+    - [and()](#and)
+    - [box()](#box)
+    - [circle()](#circle)
+    - [elemMatch()](#elemmatch)
+    - [equals()](#equals)
+    - [exists()](#exists)
+    - [geometry()](#geometry)
+    - [gt()](#gt)
+    - [gte()](#gte)
+    - [in()](#in)
+    - [intersects()](#intersects)
+    - [lt()](#lt)
+    - [lte()](#lte)
+    - [maxDistance()](#maxdistance)
+    - [mod()](#mod)
+    - [ne()](#ne)
+    - [nin()](#nin)
+    - [nor()](#nor)
+    - [near()](#near)
+      - [Example](#example)
+    - [or()](#or)
+    - [polygon()](#polygon)
+    - [regex()](#regex)
+    - [select()](#select)
+        - [String syntax](#string-syntax)
+    - [selected()](#selected)
+    - [selectedInclusively()](#selectedinclusively)
+    - [selectedExclusively()](#selectedexclusively)
+    - [size()](#size)
+    - [slice()](#slice)
+    - [within()](#within)
+    - [where()](#where)
+    - [$where()](#where-1)
+    - [batchSize()](#batchsize)
+    - [collation()](#collation)
+    - [comment()](#comment)
+    - [hint()](#hint)
+    - [j()](#j)
+    - [limit()](#limit)
+    - [maxTime()](#maxtime)
+    - [skip()](#skip)
+    - [sort()](#sort)
+    - [read()](#read)
+        - [Preferences:](#preferences)
+        - [Preference Tags:](#preference-tags)
+    - [readConcern()](#readconcern)
+        - [Read Concern Level:](#read-concern-level)
+    - [writeConcern()](#writeconcern)
+        - [Write Concern:](#write-concern)
+    - [slaveOk()](#slaveok)
+    - [tailable()](#tailable)
+    - [wtimeout()](#wtimeout)
+  - [Helpers](#helpers-1)
+    - [collection()](#collection)
+    - [then()](#then)
+    - [merge(object)](#mergeobject)
+    - [setOptions(options)](#setoptionsoptions)
+        - [setOptions() options](#setoptions-options)
+    - [setTraceFunction(func)](#settracefunctionfunc)
+    - [mquery.setGlobalTraceFunction(func)](#mquerysetglobaltracefunctionfunc)
+    - [mquery.canMerge(conditions)](#mquerycanmergeconditions)
+  - [mquery.use$geoWithin](#mqueryusegeowithin)
+  - [Custom Base Queries](#custom-base-queries)
+  - [Validation](#validation)
+  - [Debug support](#debug-support)
+  - [General compatibility](#general-compatibility)
+      - [ObjectIds](#objectids)
+      - [Read Preferences](#read-preferences)
+  - [Future goals](#future-goals)
+  - [Installation](#installation)
+  - [License](#license)
+
+## Helpers
+
+- [collection](#collection)
+- [then](#then)
+- [merge](#mergeobject)
+- [setOptions](#setoptionsoptions)
+- [setTraceFunction](#settracefunctionfunc)
+- [mquery.setGlobalTraceFunction](#mquerysetglobaltracefunctionfunc)
+- [mquery.canMerge](#mquerycanmergeconditions)
+- [mquery.use$geoWithin](#mqueryusegeowithin)
+
+### find()
+
+Declares this query a _find_ query. Optionally pass a match clause.
+
+```js
+mquery().find()
+mquery().find(match)
+await mquery().find()
+const docs = await mquery().find(match);
+assert(Array.isArray(docs));
+```
+
+### findOne()
+
+Declares this query a _findOne_ query. Optionally pass a match clause.
+
+```js
+mquery().findOne()
+mquery().findOne(match)
+await mquery().findOne()
+const doc = await mquery().findOne(match);
+if (doc) {
+  // the document may not be found
+  console.log(doc);
+}
+```
+
+### count()
+
+Declares this query a _count_ query. Optionally pass a match clause.
+
+```js
+mquery().count()
+mquery().count(match)
+await mquery().count()
+const number = await mquery().count(match);
+console.log('we found %d matching documents', number);
+```
+
+### findOneAndUpdate()
+
+Declares this query a _findAndModify_ with update query. Optionally pass a match clause, update document, options.
+
+When executed, the first matching document (if found) is modified according to the update document and passed back.
+
+#### findOneAndUpdate() options
+
+Options are passed to the `setOptions()` method.
+
+- `returnDocument`: string - `'after'` to return the modified document rather than the original. defaults to `'before'`
+- `upsert`: boolean - creates the object if it doesn't exist. defaults to false
+- `sort`: if multiple docs are found by the match condition, sets the sort order to choose which doc to update
+
+```js
+query.findOneAndUpdate()
+query.findOneAndUpdate(updateDocument)
+query.findOneAndUpdate(match, updateDocument)
+query.findOneAndUpdate(match, updateDocument, options)
+
+// the following all execute the command
+await query.findOneAndUpdate()
+await query.findOneAndUpdate(updateDocument)
+await query.findOneAndUpdate(match, updateDocument)
+const doc = await await query.findOneAndUpdate(match, updateDocument, options);
+if (doc) {
+  // the document may not be found
+  console.log(doc);
+}
+```
+
+### findOneAndRemove()
+
+Declares this query a _findAndModify_ with remove query. Alias of findOneAndDelete.
+Optionally pass a match clause, options.
+
+When executed, the first matching document (if found) is modified according to the update document, removed from the collection and passed as a result.
+
+#### findOneAndRemove() options
+
+Options are passed to the `setOptions()` method.
+
+- `sort`: if multiple docs are found by the condition, sets the sort order to choose which doc to modify and remove
+
+```js
+A.where().findOneAndDelete()
+A.where().findOneAndRemove()
+A.where().findOneAndRemove(match)
+A.where().findOneAndRemove(match, options)
+
+// the following all execute the command
+await A.where().findOneAndRemove()
+await A.where().findOneAndRemove(match)
+const doc = await A.where().findOneAndRemove(match, options);
+if (doc) {
+  // the document may not be found
+  console.log(doc);
+}
+```
+
+### distinct()
+
+Declares this query a _distinct_ query. Optionally pass the distinct field, a match clause.
+
+```js
+mquery().distinct()
+mquery().distinct(match)
+mquery().distinct(match, field)
+mquery().distinct(field)
+
+// the following all execute the command
+await mquery().distinct()
+await mquery().distinct(field)
+await mquery().distinct(match)
+const result = await mquery().distinct(match, field);
+console.log(result);
+```
+
+### exec()
+
+Executes the query.
+
+```js
+const docs = await mquery().findOne().where('route').intersects(polygon).exec()
+```
+
+### stream()
+
+Executes the query and returns a stream.
+
+```js
+var stream = mquery().find().stream(options);
+stream.on('data', cb);
+stream.on('close', fn);
+```
+
+Note: this only works with `find()` operations.
+
+Note: returns the stream object directly from the node-mongodb-native driver. (currently streams1 type stream). Any options will be passed along to the [driver method](http://mongodb.github.io/node-mongodb-native/api-generated/cursor.html#stream).
+
+---
+
+### all()
+
+Specifies an `$all` query condition
+
+```js
+mquery().where('permission').all(['read', 'write'])
+```
+
+[MongoDB documentation](http://docs.mongodb.org/manual/reference/operator/all/)
+
+### and()
+
+Specifies arguments for an `$and` condition
+
+```js
+mquery().and([{ color: 'green' }, { status: 'ok' }])
+```
+
+[MongoDB documentation](http://docs.mongodb.org/manual/reference/operator/and/)
+
+### box()
+
+Specifies a `$box` condition
+
+```js
+var lowerLeft = [40.73083, -73.99756]
+var upperRight= [40.741404,  -73.988135]
+
+mquery().where('location').within().box(lowerLeft, upperRight)
+```
+
+[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/box/)
+
+### circle()
+
+Specifies a `$center` or `$centerSphere` condition.
+
+```js
+var area = { center: [50, 50], radius: 10, unique: true }
+query.where('loc').within().circle(area)
+query.circle('loc', area);
+
+// for spherical calculations
+var area = { center: [50, 50], radius: 10, unique: true, spherical: true }
+query.where('loc').within().circle(area)
+query.circle('loc', area);
+```
+
+- [MongoDB Documentation - center](http://docs.mongodb.org/manual/reference/operator/center/)
+- [MongoDB Documentation - centerSphere](http://docs.mongodb.org/manual/reference/operator/centerSphere/)
+
+### elemMatch()
+
+Specifies an `$elemMatch` condition
+
+```js
+query.where('comment').elemMatch({ author: 'autobot', votes: {$gte: 5}})
+
+query.elemMatch('comment', function (elem) {
+  elem.where('author').equals('autobot');
+  elem.where('votes').gte(5);
+})
+```
+
+[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/elemMatch/)
+
+### equals()
+
+Specifies the complementary comparison value for the path specified with `where()`.
+
+```js
+mquery().where('age').equals(49);
+
+// is the same as
+
+mquery().where({ 'age': 49 });
+```
+
+### exists()
+
+Specifies an `$exists` condition
+
+```js
+// { name: { $exists: true }}
+mquery().where('name').exists()
+mquery().where('name').exists(true)
+mquery().exists('name')
+
+// { name: { $exists: false }}
+mquery().where('name').exists(false);
+mquery().exists('name', false);
+```
+
+[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/exists/)
+
+### geometry()
+
+Specifies a `$geometry` condition
+
+```js
+var polyA = [[[ 10, 20 ], [ 10, 40 ], [ 30, 40 ], [ 30, 20 ]]]
+query.where('loc').within().geometry({ type: 'Polygon', coordinates: polyA })
+
+// or
+var polyB = [[ 0, 0 ], [ 1, 1 ]]
+query.where('loc').within().geometry({ type: 'LineString', coordinates: polyB })
+
+// or
+var polyC = [ 0, 0 ]
+query.where('loc').within().geometry({ type: 'Point', coordinates: polyC })
+
+// or
+query.where('loc').intersects().geometry({ type: 'Point', coordinates: polyC })
+
+// or
+query.where('loc').near().geometry({ type: 'Point', coordinates: [3,5] })
+```
+
+`geometry()` **must** come after `intersects()`, `within()`, or `near()`.
+
+The `object` argument must contain `type` and `coordinates` properties.
+
+- type `String`
+- coordinates `Array`
+
+[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/geometry/)
+
+### gt()
+
+Specifies a `$gt` query condition.
+
+```js
+mquery().where('clicks').gt(999)
+```
+
+[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/gt/)
+
+### gte()
+
+Specifies a `$gte` query condition.
+
+[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/gte/)
+
+```js
+mquery().where('clicks').gte(1000)
+```
+
+### in()
+
+Specifies an `$in` query condition.
+
+```js
+mquery().where('author_id').in([3, 48901, 761])
+```
+
+[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/in/)
+
+### intersects()
+
+Declares an `$geoIntersects` query for `geometry()`.
+
+```js
+query.where('path').intersects().geometry({
+    type: 'LineString'
+  , coordinates: [[180.0, 11.0], [180, 9.0]]
+})
+
+// geometry arguments are supported
+query.where('path').intersects({
+    type: 'LineString'
+  , coordinates: [[180.0, 11.0], [180, 9.0]]
+})
+```
+
+**Must** be used after `where()`.
+
+[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/geoIntersects/)
+
+### lt()
+
+Specifies a `$lt` query condition.
+
+```js
+mquery().where('clicks').lt(50)
+```
+
+[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/lt/)
+
+### lte()
+
+Specifies a `$lte` query condition.
+
+```js
+mquery().where('clicks').lte(49)
+```
+
+[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/lte/)
+
+### maxDistance()
+
+Specifies a `$maxDistance` query condition.
+
+```js
+mquery().where('location').near({ center: [139, 74.3] }).maxDistance(5)
+```
+
+[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/maxDistance/)
+
+### mod()
+
+Specifies a `$mod` condition
+
+```js
+mquery().where('count').mod(2, 0)
+```
+
+[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/mod/)
+
+### ne()
+
+Specifies a `$ne` query condition.
+
+```js
+mquery().where('status').ne('ok')
+```
+
+[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/ne/)
+
+### nin()
+
+Specifies an `$nin` query condition.
+
+```js
+mquery().where('author_id').nin([3, 48901, 761])
+```
+
+[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/nin/)
+
+### nor()
+
+Specifies arguments for an `$nor` condition.
+
+```js
+mquery().nor([{ color: 'green' }, { status: 'ok' }])
+```
+
+[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/nor/)
+
+### near()
+
+Specifies arguments for a `$near` or `$nearSphere` condition.
+
+These operators return documents sorted by distance.
+
+#### Example
+
+```js
+query.where('loc').near({ center: [10, 10] });
+query.where('loc').near({ center: [10, 10], maxDistance: 5 });
+query.near('loc', { center: [10, 10], maxDistance: 5 });
+
+// GeoJSON
+query.where('loc').near({ center: { type: 'Point', coordinates: [10, 10] }});
+query.where('loc').near({ center: { type: 'Point', coordinates: [10, 10] }, maxDistance: 5, spherical: true });
+query.where('loc').near().geometry({ type: 'Point', coordinates: [10, 10] });
+
+// For a $nearSphere condition, pass the `spherical` option.
+query.near({ center: [10, 10], maxDistance: 5, spherical: true });
+```
+
+[MongoDB Documentation](http://www.mongodb.org/display/DOCS/Geospatial+Indexing)
+
+### or()
+
+Specifies arguments for an `$or` condition.
+
+```js
+mquery().or([{ color: 'red' }, { status: 'emergency' }])
+```
+
+[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/or/)
+
+### polygon()
+
+Specifies a `$polygon` condition
+
+```js
+mquery().where('loc').within().polygon([10,20], [13, 25], [7,15])
+mquery().polygon('loc', [10,20], [13, 25], [7,15])
+```
+
+[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/polygon/)
+
+### regex()
+
+Specifies a `$regex` query condition.
+
+```js
+mquery().where('name').regex(/^sixstepsrecords/)
+```
+
+[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/regex/)
+
+### select()
+
+Specifies which document fields to include or exclude
+
+```js
+// 1 means include, 0 means exclude
+mquery().select({ name: 1, address: 1, _id: 0 })
+
+// or
+
+mquery().select('name address -_id')
+```
+
+#### String syntax
+
+When passing a string, prefixing a path with `-` will flag that path as excluded. When a path does not have the `-` prefix, it is included.
+
+```js
+// include a and b, exclude c
+query.select('a b -c');
+
+// or you may use object notation, useful when
+// you have keys already prefixed with a "-"
+query.select({a: 1, b: 1, c: 0});
+```
+
+_Cannot be used with `distinct()`._
+
+### selected()
+
+Determines if the query has selected any fields.
+
+```js
+var query = mquery();
+query.selected() // false
+query.select('-name');
+query.selected() // true
+```
+
+### selectedInclusively()
+
+Determines if the query has selected any fields inclusively.
+
+```js
+var query = mquery().select('name');
+query.selectedInclusively() // true
+
+var query = mquery();
+query.selected() // false
+query.select('-name');
+query.selectedInclusively() // false
+query.selectedExclusively() // true
+```
+
+### selectedExclusively()
+
+Determines if the query has selected any fields exclusively.
+
+```js
+var query = mquery().select('-name');
+query.selectedExclusively() // true
+
+var query = mquery();
+query.selected() // false
+query.select('name');
+query.selectedExclusively() // false
+query.selectedInclusively() // true
+```
+
+### size()
+
+Specifies a `$size` query condition.
+
+```js
+mquery().where('someArray').size(6)
+```
+
+[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/size/)
+
+### slice()
+
+Specifies a `$slice` projection for a `path`
+
+```js
+mquery().where('comments').slice(5)
+mquery().where('comments').slice(-5)
+mquery().where('comments').slice([-10, 5])
+```
+
+[MongoDB Documentation](http://docs.mongodb.org/manual/reference/projection/slice/)
+
+### within()
+
+Sets a `$geoWithin` or `$within` argument for geo-spatial queries.
+
+```js
+mquery().within().box()
+mquery().within().circle()
+mquery().within().geometry()
+
+mquery().where('loc').within({ center: [50,50], radius: 10, unique: true, spherical: true });
+mquery().where('loc').within({ box: [[40.73, -73.9], [40.7, -73.988]] });
+mquery().where('loc').within({ polygon: [[],[],[],[]] });
+
+mquery().where('loc').within([], [], []) // polygon
+mquery().where('loc').within([], []) // box
+mquery().where('loc').within({ type: 'LineString', coordinates: [...] }); // geometry
+```
+
+As of mquery 2.0, `$geoWithin` is used by default. This impacts you if running MongoDB < 2.4. To alter this behavior, see [mquery.use$geoWithin](#mqueryusegeowithin).
+
+**Must** be used after `where()`.
+
+[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/geoWithin/)
+
+### where()
+
+Specifies a `path` for use with chaining
+
+```js
+// instead of writing:
+mquery().find({age: {$gte: 21, $lte: 65}});
+
+// we can instead write:
+mquery().where('age').gte(21).lte(65);
+
+// passing query conditions is permitted too
+mquery().find().where({ name: 'vonderful' })
+
+// chaining
+await mquery()
+  .where('age').gte(21).lte(65)
+  .where({ 'name': /^vonderful/i })
+  .where('friends').slice(10)
+  .exec()
+```
+
+### $where()
+
+Specifies a `$where` condition.
+
+Use `$where` when you need to select documents using a JavaScript expression.
+
+```js
+await query.$where('this.comments.length > 10 || this.name.length > 5').exec()
+
+query.$where(function () {
+  return this.comments.length > 10 || this.name.length > 5;
+})
+```
+
+Only use `$where` when you have a condition that cannot be met using other MongoDB operators like `$lt`. Be sure to read about all of [its caveats](http://docs.mongodb.org/manual/reference/operator/where/) before using.
+
+---
+
+### batchSize()
+
+Specifies the batchSize option.
+
+```js
+query.batchSize(100)
+```
+
+_Cannot be used with `distinct()`._
+
+[MongoDB documentation](http://docs.mongodb.org/manual/reference/method/cursor.batchSize/)
+
+### collation()
+
+Specifies the collation option.
+
+```js
+query.collation({ locale: "en_US", strength: 1 })
+```
+
+[MongoDB documentation](https://docs.mongodb.com/manual/reference/method/cursor.collation/#cursor.collation)
+
+### comment()
+
+Specifies the comment option.
+
+```js
+query.comment('login query');
+```
+
+_Cannot be used with `distinct()`._
+
+[MongoDB documentation](http://docs.mongodb.org/manual/reference/operator/)
+
+### hint()
+
+Sets query hints.
+
+```js
+mquery().hint({ indexA: 1, indexB: -1 })
+```
+
+_Cannot be used with `distinct()`._
+
+[MongoDB documentation](http://docs.mongodb.org/manual/reference/operator/hint/)
+
+### j()
+
+Requests acknowledgement that this operation has been persisted to MongoDB's on-disk journal.
+
+This option is only valid for operations that write to the database:
+
+- `deleteOne()`
+- `deleteMany()`
+- `findOneAndDelete()`
+- `findOneAndUpdate()`
+- `updateOne()`
+- `updateMany()`
+
+Defaults to the `j` value if it is specified in [writeConcern](#writeconcern)
+
+```js
+mquery().j(true);
+```
+
+### limit()
+
+Specifies the limit option.
+
+```js
+query.limit(20)
+```
+
+_Cannot be used with `distinct()`._
+
+[MongoDB documentation](http://docs.mongodb.org/manual/reference/method/cursor.limit/)
+
+### maxTime()
+
+Specifies the maxTimeMS option.
+
+```js
+query.maxTime(100)
+query.maxTimeMS(100)
+```
+
+[MongoDB documentation](http://docs.mongodb.org/manual/reference/method/cursor.maxTimeMS/)
+
+### skip()
+
+Specifies the skip option.
+
+```js
+query.skip(100).limit(20)
+```
+
+_Cannot be used with `distinct()`._
+
+[MongoDB documentation](http://docs.mongodb.org/manual/reference/method/cursor.skip/)
+
+### sort()
+
+Sets the query sort order.
+
+If an object is passed, key values allowed are `asc`, `desc`, `ascending`, `descending`, `1`, and `-1`.
+
+If a string is passed, it must be a space delimited list of path names. The sort order of each path is ascending unless the path name is prefixed with `-` which will be treated as descending.
+
+```js
+// these are equivalent
+query.sort({ field: 'asc', test: -1 });
+query.sort('field -test');
+```
+
+_Cannot be used with `distinct()`._
+
+[MongoDB documentation](http://docs.mongodb.org/manual/reference/method/cursor.sort/)
+
+### read()
+
+Sets the readPreference option for the query.
+
+```js
+mquery().read('primary')
+mquery().read('p')  // same as primary
+
+mquery().read('primaryPreferred')
+mquery().read('pp') // same as primaryPreferred
+
+mquery().read('secondary')
+mquery().read('s')  // same as secondary
+
+mquery().read('secondaryPreferred')
+mquery().read('sp') // same as secondaryPreferred
+
+mquery().read('nearest')
+mquery().read('n')  // same as nearest
+
+mquery().setReadPreference('primary') // alias of .read()
+```
+
+#### Preferences:
+
+- `primary` - (default) Read from primary only. Operations will produce an error if primary is unavailable. Cannot be combined with tags.
+- `secondary` - Read from secondary if available, otherwise error.
+- `primaryPreferred` - Read from primary if available, otherwise a secondary.
+- `secondaryPreferred` - Read from a secondary if available, otherwise read from the primary.
+- `nearest` - All operations read from among the nearest candidates, but unlike other modes, this option will include both the primary and all secondaries in the random selection.
+
+Aliases
+
+- `p`   primary
+- `pp`  primaryPreferred
+- `s`   secondary
+- `sp`  secondaryPreferred
+- `n`   nearest
+
+#### Preference Tags:
+
+To keep the separation of concerns between `mquery` and your driver
+clean, `mquery#read()` no longer handles specifying a second `tags` argument as of version 0.5.
+If you need to specify tags, pass any non-string argument as the first argument.
+`mquery` will pass this argument untouched to your collections methods later.
+For example:
+
+```js
+// example of specifying tags using the Node.js driver
+var ReadPref = require('mongodb').ReadPreference;
+var preference = new ReadPref('secondary', [{ dc:'sf', s: 1 },{ dc:'ma', s: 2 }]);
+mquery(...).read(preference).exec();
+```
+
+Read more about how to use read preferences [here](http://docs.mongodb.org/manual/applications/replication/#read-preference) and [here](http://mongodb.github.com/node-mongodb-native/driver-articles/anintroductionto1_1and2_2.html#read-preferences).
+
+### readConcern()
+
+Sets the readConcern option for the query.
+
+```js
+// local
+mquery().readConcern('local')
+mquery().readConcern('l')
+mquery().r('l')
+
+// available
+mquery().readConcern('available')
+mquery().readConcern('a')
+mquery().r('a')
+
+// majority
+mquery().readConcern('majority')
+mquery().readConcern('m')
+mquery().r('m')
+
+// linearizable
+mquery().readConcern('linearizable')
+mquery().readConcern('lz')
+mquery().r('lz')
+
+// snapshot
+mquery().readConcern('snapshot')
+mquery().readConcern('s')
+mquery().r('s')
+```
+
+#### Read Concern Level:
+
+- `local` - The query returns from the instance with no guarantee guarantee that the data has been written to a majority of the replica set members (i.e. may be rolled back). (MongoDB 3.2+)
+- `available` - The query returns from the instance with no guarantee guarantee that the data has been written to a majority of the replica set members (i.e. may be rolled back). (MongoDB 3.6+)
+- `majority` - The query returns the data that has been acknowledged by a majority of the replica set members. The documents returned by the read operation are durable, even in the event of failure. (MongoDB 3.2+)
+- `linearizable` - The query returns data that reflects all successful majority-acknowledged writes that completed prior to the start of the read operation. The query may wait for concurrently executing writes to propagate to a majority of replica set members before returning results. (MongoDB 3.4+)
+- `snapshot` - Only available for operations within multi-document transactions. Upon transaction commit with write concern "majority", the transaction operations are guaranteed to have read from a snapshot of majority-committed data. (MongoDB 4.0+)
+
+Aliases
+
+- `l`   local
+- `a`   available
+- `m`   majority
+- `lz`  linearizable
+- `s`   snapshot
+
+Read more about how to use read concern [here](https://docs.mongodb.com/manual/reference/read-concern/).
+
+### writeConcern()
+
+Sets the writeConcern option for the query.
+
+This option is only valid for operations that write to the database:
+
+- `deleteOne()`
+- `deleteMany()`
+- `findOneAndDelete()`
+- `findOneAndUpdate()`
+- `updateOne()`
+- `updateMany()`
+
+```js
+mquery().writeConcern(0)
+mquery().writeConcern(1)
+mquery().writeConcern({ w: 1, j: true, wtimeout: 2000 })
+mquery().writeConcern('majority')
+mquery().writeConcern('m') // same as majority
+mquery().writeConcern('tagSetName') // if the tag set is 'm', use .writeConcern({ w: 'm' }) instead
+mquery().w(1) // w is alias of writeConcern
+```
+
+#### Write Concern:
+
+writeConcern({ w: `<value>`, j: `<boolean>`, wtimeout: `<number>` }`)
+
+- the w option to request acknowledgement that the write operation has propagated to a specified number of mongod instances or to mongod instances with specified tags
+- the j option to request acknowledgement that the write operation has been written to the journal
+- the wtimeout option to specify a time limit to prevent write operations from blocking indefinitely
+
+Can be break down to use the following syntax:
+
+mquery().w(`<value>`).j(`<boolean>`).wtimeout(`<number>`)
+
+Read more about how to use write concern [here](https://docs.mongodb.com/manual/reference/write-concern/)
+
+### slaveOk()
+
+Sets the slaveOk option. `true` allows reading from secondaries.
+
+**deprecated** use [read()](#read) preferences instead if on mongodb >= 2.2
+
+```js
+query.slaveOk() // true
+query.slaveOk(true)
+query.slaveOk(false)
+```
+
+[MongoDB documentation](http://docs.mongodb.org/manual/reference/method/rs.slaveOk/)
+
+### tailable()
+
+Sets tailable option.
+
+```js
+mquery().tailable() <== true
+mquery().tailable(true)
+mquery().tailable(false)
+```
+
+_Cannot be used with `distinct()`._
+
+[MongoDB Documentation](http://docs.mongodb.org/manual/tutorial/create-tailable-cursor/)
+
+### wtimeout()
+
+Specifies a time limit, in milliseconds, for the write concern. If `w > 1`, it is maximum amount of time to
+wait for this write to propagate through the replica set before this operation fails. The default is `0`, which means no timeout.
+
+This option is only valid for operations that write to the database:
+
+- `deleteOne()`
+- `deleteMany()`
+- `findOneAndDelete()`
+- `findOneAndUpdate()`
+- `updateOne()`
+- `updateMany()`
+
+Defaults to `wtimeout` value if it is specified in [writeConcern](#writeconcern)
+
+```js
+mquery().wtimeout(2000)
+mquery().wTimeout(2000)
+```
+
+## Helpers
+
+### collection()
+
+Sets the querys collection.
+
+```js
+mquery().collection(aCollection)
+```
+
+### then()
+
+Executes the query and returns a promise which will be resolved with the query results or rejected if the query responds with an error.
+
+```js
+mquery().find(..).then(success, error);
+```
+
+This is very useful when combined with [co](https://github.com/visionmedia/co) or [koa](https://github.com/koajs/koa), which automatically resolve promise-like objects for you.
+
+```js
+co(function*(){
+  var doc = yield mquery().findOne({ _id: 499 });
+  console.log(doc); // { _id: 499, name: 'amazing', .. }
+})();
+```
+
+_NOTE_:
+The returned promise is a [bluebird](https://github.com/petkaantonov/bluebird/) promise but this is customizable. If you want to
+use your favorite promise library, simply set `mquery.Promise = YourPromiseConstructor`.
+Your `Promise` must be [promises A+](http://promisesaplus.com/) compliant.
+
+### merge(object)
+
+Merges other mquery or match condition objects into this one. When an mquery instance is passed, its match conditions, field selection and options are merged.
+
+```js
+const drum = mquery({ type: 'drum' }).collection(instruments);
+const redDrum = mquery({ color: 'red' }).merge(drum);
+const n = await redDrum.count();
+console.log('there are %d red drums', n);
+```
+
+Internally uses `mquery.canMerge` to determine validity.
+
+### setOptions(options)
+
+Sets query options.
+
+```js
+mquery().setOptions({ collection: coll, limit: 20 })
+```
+
+#### setOptions() options
+
+- [tailable](#tailable) *
+- [sort](#sort) *
+- [limit](#limit) *
+- [skip](#skip) *
+- [maxTime](#maxtime) *
+- [batchSize](#batchsize) *
+- [comment](#comment) *
+- [hint](#hint) *
+- [collection](#collection): the collection to query against
+
+_* denotes a query helper method is also available_
+
+### setTraceFunction(func)
+
+Set a function to trace this query. Useful for profiling or logging.
+
+```js
+function traceFunction (method, queryInfo, query) {
+  console.log('starting ' + method + ' query');
+
+  return function (err, result, millis) {
+    console.log('finished ' + method + ' query in ' + millis + 'ms');
+  };
+}
+
+mquery().setTraceFunction(traceFunction).findOne({name: 'Joe'}, cb);
+```
+
+The trace function is passed (method, queryInfo, query)
+
+- method is the name of the method being called (e.g. findOne)
+- queryInfo contains information about the query:
+  - conditions: query conditions/criteria
+  - options: options such as sort, fields, etc
+  - doc: document being updated
+- query is the query object
+
+The trace function should return a callback function which accepts:
+- err: error, if any
+- result: result, if any
+- millis: time spent waiting for query result
+
+NOTE: stream requests are not traced.
+
+### mquery.setGlobalTraceFunction(func)
+
+Similar to `setTraceFunction()` but automatically applied to all queries.
+
+```js
+mquery.setTraceFunction(traceFunction);
+```
+
+### mquery.canMerge(conditions)
+
+Determines if `conditions` can be merged using `mquery().merge()`.
+
+```js
+var query = mquery({ type: 'drum' });
+var okToMerge = mquery.canMerge(anObject)
+if (okToMerge) {
+  query.merge(anObject);
+}
+```
+
+## mquery.use$geoWithin
+
+MongoDB 2.4 introduced the `$geoWithin` operator which replaces and is 100% backward compatible with `$within`. As of mquery 0.2, we default to using `$geoWithin` for all `within()` calls.
+
+If you are running MongoDB < 2.4 this will be problematic. To force `mquery` to be backward compatible and always use `$within`, set the `mquery.use$geoWithin` flag to `false`.
+
+```js
+mquery.use$geoWithin = false;
+```
+
+## Custom Base Queries
+
+Often times we want custom base queries that encapsulate predefined criteria. With `mquery` this is easy. First create the query you want to reuse and call its `toConstructor()` method which returns a new subclass of `mquery` that retains all options and criteria of the original.
+
+```js
+var greatMovies = mquery(movieCollection).where('rating').gte(4.5).toConstructor();
+
+// use it!
+const n = await greatMovies().count();
+console.log('There are %d great movies', n);
+
+const docs = await greatMovies().where({ name: /^Life/ }).select('name').find();
+console.log(docs);
+```
+
+## Validation
+
+Method and options combinations are checked for validity at runtime to prevent creation of invalid query constructs. For example, a `distinct` query does not support specifying options like `hint` or field selection. In this case an error will be thrown so you can catch these mistakes in development.
+
+## Debug support
+
+Debug mode is provided through the use of the [debug](https://github.com/visionmedia/debug) module. To enable:
+
+```sh
+DEBUG=mquery node yourprogram.js
+```
+
+Read the debug module documentation for more details.
+
+## General compatibility
+
+### ObjectIds
+
+`mquery` clones query arguments before passing them to a `collection` method for execution.
+This prevents accidental side-affects to the objects you pass.
+To clone `ObjectIds` we need to make some assumptions.
+
+First, to check if an object is an `ObjectId`, we check its constructors name. If it matches either
+`ObjectId` or `ObjectID` we clone it.
+
+To clone `ObjectIds`, we call its optional `clone` method. If a `clone` method does not exist, we fall
+back to calling `new obj.constructor(obj.id)`. We assume, for compatibility with the
+Node.js driver, that the `ObjectId` instance has a public `id` property and that
+when creating an `ObjectId` instance we can pass that `id` as an argument.
+
+#### Read Preferences
+
+`mquery` supports specifying [Read Preferences](https://www.mongodb.com/docs/manual/core/read-preference/) to control from which MongoDB node your query will read.
+The Read Preferences spec also support specifying tags. To pass tags, some
+drivers (Node.js driver) require passing a special constructor that handles both the read preference and its tags.
+If you need to specify tags, pass an instance of your drivers ReadPreference constructor or roll your own. `mquery` will store whatever you provide and pass later to your collection during execution.
+
+## Future goals
+
+- mongo shell compatibility
+- browser compatibility
+
+## Installation
+
+```sh
+npm install mquery
+```
+
+## License
+
+[MIT](https://github.com/aheckmann/mquery/blob/master/LICENSE)
diff --git a/backend/node_modules/mquery/SECURITY.md b/backend/node_modules/mquery/SECURITY.md
new file mode 100644
index 0000000..41b89d8
--- /dev/null
+++ b/backend/node_modules/mquery/SECURITY.md
@@ -0,0 +1 @@
+Please follow the instructions on [Tidelift's security page](https://tidelift.com/docs/security) to report a security issue.
diff --git a/backend/node_modules/mquery/lib/collection/collection.js b/backend/node_modules/mquery/lib/collection/collection.js
new file mode 100644
index 0000000..b473f89
--- /dev/null
+++ b/backend/node_modules/mquery/lib/collection/collection.js
@@ -0,0 +1,45 @@
+'use strict';
+
+/**
+ * methods a collection must implement
+ */
+
+const methods = [
+  'find',
+  'findOne',
+  'updateMany',
+  'updateOne',
+  'replaceOne',
+  'count',
+  'distinct',
+  'findOneAndDelete',
+  'findOneAndUpdate',
+  'aggregate',
+  'findCursor',
+  'deleteOne',
+  'deleteMany'
+];
+
+/**
+ * Collection base class from which implementations inherit
+ */
+
+function Collection() {}
+
+for (let i = 0, len = methods.length; i < len; ++i) {
+  const method = methods[i];
+  Collection.prototype[method] = notImplemented(method);
+}
+
+module.exports = exports = Collection;
+Collection.methods = methods;
+
+/**
+ * creates a function which throws an implementation error
+ */
+
+function notImplemented(method) {
+  return function() {
+    throw new Error('collection.' + method + ' not implemented');
+  };
+}
diff --git a/backend/node_modules/mquery/lib/collection/index.js b/backend/node_modules/mquery/lib/collection/index.js
new file mode 100644
index 0000000..4faa032
--- /dev/null
+++ b/backend/node_modules/mquery/lib/collection/index.js
@@ -0,0 +1,13 @@
+'use strict';
+
+const env = require('../env');
+
+if ('unknown' == env.type) {
+  throw new Error('Unknown environment');
+}
+
+module.exports =
+  env.isNode ? require('./node') :
+    env.isMongo ? require('./collection') :
+      require('./collection');
+
diff --git a/backend/node_modules/mquery/lib/collection/node.js b/backend/node_modules/mquery/lib/collection/node.js
new file mode 100644
index 0000000..6580f51
--- /dev/null
+++ b/backend/node_modules/mquery/lib/collection/node.js
@@ -0,0 +1,114 @@
+'use strict';
+
+/**
+ * Module dependencies
+ */
+
+const Collection = require('./collection');
+
+class NodeCollection extends Collection {
+  constructor(col) {
+    super();
+
+    this.collection = col;
+    this.collectionName = col.collectionName;
+  }
+
+  /**
+   * find(match, options)
+   */
+  async find(match, options) {
+    const cursor = this.collection.find(match, options);
+
+    return cursor.toArray();
+  }
+
+  /**
+   * findOne(match, options)
+   */
+  async findOne(match, options) {
+    return this.collection.findOne(match, options);
+  }
+
+  /**
+   * count(match, options)
+   */
+  async count(match, options) {
+    return this.collection.count(match, options);
+  }
+
+  /**
+   * distinct(prop, match, options)
+   */
+  async distinct(prop, match, options) {
+    return this.collection.distinct(prop, match, options);
+  }
+
+  /**
+   * updateMany(match, update, options)
+   */
+  async updateMany(match, update, options) {
+    return this.collection.updateMany(match, update, options);
+  }
+
+  /**
+   * updateOne(match, update, options)
+   */
+  async updateOne(match, update, options) {
+    return this.collection.updateOne(match, update, options);
+  }
+
+  /**
+   * replaceOne(match, update, options)
+   */
+  async replaceOne(match, update, options) {
+    return this.collection.replaceOne(match, update, options);
+  }
+
+  /**
+   * deleteOne(match, options)
+   */
+  async deleteOne(match, options) {
+    return this.collection.deleteOne(match, options);
+  }
+
+  /**
+   * deleteMany(match, options)
+   */
+  async deleteMany(match, options) {
+    return this.collection.deleteMany(match, options);
+  }
+
+  /**
+   * findOneAndDelete(match, options, function(err[, result])
+   */
+  async findOneAndDelete(match, options) {
+    return this.collection.findOneAndDelete(match, options);
+  }
+
+  /**
+   * findOneAndUpdate(match, update, options)
+   */
+  async findOneAndUpdate(match, update, options) {
+    return this.collection.findOneAndUpdate(match, update, options);
+  }
+
+  /**
+   * var cursor = findCursor(match, options)
+   */
+  findCursor(match, options) {
+    return this.collection.find(match, options);
+  }
+
+  /**
+   * aggregation(operators...)
+   * TODO
+   */
+}
+
+
+/**
+ * Expose
+ */
+
+module.exports = exports = NodeCollection;
diff --git a/backend/node_modules/mquery/lib/env.js b/backend/node_modules/mquery/lib/env.js
new file mode 100644
index 0000000..d3d225b
--- /dev/null
+++ b/backend/node_modules/mquery/lib/env.js
@@ -0,0 +1,22 @@
+'use strict';
+
+exports.isNode = 'undefined' != typeof process
+           && 'object' == typeof module
+           && 'object' == typeof global
+           && 'function' == typeof Buffer
+           && process.argv;
+
+exports.isMongo = !exports.isNode
+           && 'function' == typeof printjson
+           && 'function' == typeof ObjectId
+           && 'function' == typeof rs
+           && 'function' == typeof sh;
+
+exports.isBrowser = !exports.isNode
+                 && !exports.isMongo
+                 && 'undefined' != typeof window;
+
+exports.type = exports.isNode ? 'node'
+  : exports.isMongo ? 'mongo'
+    : exports.isBrowser ? 'browser'
+      : 'unknown';
diff --git a/backend/node_modules/mquery/lib/mquery.js b/backend/node_modules/mquery/lib/mquery.js
new file mode 100644
index 0000000..dc874ad
--- /dev/null
+++ b/backend/node_modules/mquery/lib/mquery.js
@@ -0,0 +1,2705 @@
+'use strict';
+
+/**
+ * Dependencies
+ */
+
+const assert = require('assert');
+const util = require('util');
+const utils = require('./utils');
+const debug = require('debug')('mquery');
+
+/**
+ * Query constructor used for building queries.
+ *
+ * #### Example:
+ *
+ *     var query = new Query({ name: 'mquery' });
+ *     query.setOptions({ collection: moduleCollection })
+ *     await query.where('age').gte(21).exec();
+ *
+ * @param {Object} [criteria] criteria for the query OR the collection instance to use
+ * @param {Object} [options]
+ * @api public
+ */
+
+function Query(criteria, options) {
+  if (!(this instanceof Query))
+    return new Query(criteria, options);
+
+  const proto = this.constructor.prototype;
+
+  this.op = proto.op || undefined;
+
+  this.options = Object.assign({}, proto.options);
+
+  this._conditions = proto._conditions
+    ? utils.clone(proto._conditions)
+    : {};
+
+  this._fields = proto._fields
+    ? utils.clone(proto._fields)
+    : undefined;
+
+  this._updateDoc = proto._updateDoc
+    ? utils.clone(proto._updateDoc)
+    : undefined;
+
+  this._path = proto._path || undefined;
+  this._distinctDoc = proto._distinctDoc || undefined;
+  this._collection = proto._collection || undefined;
+  this._traceFunction = proto._traceFunction || undefined;
+
+  if (options) {
+    this.setOptions(options);
+  }
+
+  if (criteria) {
+    this.find(criteria);
+  }
+}
+
+/**
+ * This is a parameter that the user can set which determines if mquery
+ * uses $within or $geoWithin for queries. It defaults to true which
+ * means $geoWithin will be used. If using MongoDB < 2.4 you should
+ * set this to false.
+ *
+ * @api public
+ * @property use$geoWithin
+ */
+
+let $withinCmd = '$geoWithin';
+Object.defineProperty(Query, 'use$geoWithin', {
+  get: function() { return $withinCmd == '$geoWithin'; },
+  set: function(v) {
+    if (true === v) {
+      // mongodb >= 2.4
+      $withinCmd = '$geoWithin';
+    } else {
+      $withinCmd = '$within';
+    }
+  }
+});
+
+/**
+ * Converts this query to a constructor function with all arguments and options retained.
+ *
+ * #### Example:
+ *
+ *     // Create a query that will read documents with a "video" category from
+ *     // `aCollection` on the primary node in the replica-set unless it is down,
+ *     // in which case we'll read from a secondary node.
+ *     var query = mquery({ category: 'video' })
+ *     query.setOptions({ collection: aCollection, read: 'primaryPreferred' });
+ *
+ *     // create a constructor based off these settings
+ *     var Video = query.toConstructor();
+ *
+ *     // Video is now a subclass of mquery() and works the same way but with the
+ *     // default query parameters and options set.
+ *
+ *     // run a query with the previous settings but filter for movies with names
+ *     // that start with "Life".
+ *     Video().where({ name: /^Life/ }).exec(cb);
+ *
+ * @return {Query} new Query
+ * @api public
+ */
+
+Query.prototype.toConstructor = function toConstructor() {
+  function CustomQuery(criteria, options) {
+    if (!(this instanceof CustomQuery))
+      return new CustomQuery(criteria, options);
+    Query.call(this, criteria, options);
+  }
+
+  utils.inherits(CustomQuery, Query);
+
+  // set inherited defaults
+  const p = CustomQuery.prototype;
+
+  p.options = {};
+  p.setOptions(this.options);
+
+  p.op = this.op;
+  p._conditions = utils.clone(this._conditions);
+  p._fields = utils.clone(this._fields);
+  p._updateDoc = utils.clone(this._updateDoc);
+  p._path = this._path;
+  p._distinctDoc = this._distinctDoc;
+  p._collection = this._collection;
+  p._traceFunction = this._traceFunction;
+
+  return CustomQuery;
+};
+
+/**
+ * Sets query options.
+ *
+ * #### Options:
+ *
+ * - [tailable](http://www.mongodb.org/display/DOCS/Tailable+Cursors) *
+ * - [sort](http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%7B%7Bsort(\)%7D%7D) *
+ * - [limit](http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%7B%7Blimit%28%29%7D%7D) *
+ * - [skip](http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%7B%7Bskip%28%29%7D%7D) *
+ * - [maxTime](http://docs.mongodb.org/manual/reference/operator/meta/maxTimeMS/#op._S_maxTimeMS) *
+ * - [batchSize](http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%7B%7BbatchSize%28%29%7D%7D) *
+ * - [comment](http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%24comment) *
+ * - [hint](http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%24hint) *
+ * - [slaveOk](http://docs.mongodb.org/manual/applications/replication/#read-preference) *
+ * - [safe](http://www.mongodb.org/display/DOCS/getLastError+Command)
+ * - collection the collection to query against
+ *
+ * _* denotes a query helper method is also available_
+ *
+ * @param {Object} options
+ * @api public
+ */
+
+Query.prototype.setOptions = function(options) {
+  if (!(options && utils.isObject(options)))
+    return this;
+
+  // set arbitrary options
+  const methods = utils.keys(options);
+  let method;
+
+  for (let i = 0; i < methods.length; ++i) {
+    method = methods[i];
+
+    // use methods if exist (safer option manipulation)
+    if ('function' == typeof this[method]) {
+      const args = Array.isArray(options[method])
+        ? options[method]
+        : [options[method]];
+      this[method].apply(this, args);
+    } else {
+      this.options[method] = options[method];
+    }
+  }
+
+  return this;
+};
+
+/**
+ * Sets this Querys collection.
+ *
+ * @param {Collection} coll
+ * @return {Query} this
+ */
+
+Query.prototype.collection = function collection(coll) {
+  this._collection = new Query.Collection(coll);
+
+  return this;
+};
+
+/**
+ * Adds a collation to this op (MongoDB 3.4 and up)
+ *
+ * #### Example:
+ *
+ *     query.find().collation({ locale: "en_US", strength: 1 })
+ *
+ * @param {Object} value
+ * @return {Query} this
+ * @see MongoDB docs https://docs.mongodb.com/manual/reference/method/cursor.collation/#cursor.collation
+ * @api public
+ */
+
+Query.prototype.collation = function(value) {
+  this.options.collation = value;
+  return this;
+};
+
+/**
+ * Specifies a `$where` condition
+ *
+ * Use `$where` when you need to select documents using a JavaScript expression.
+ *
+ * #### Example:
+ *
+ *     query.$where('this.comments.length > 10 || this.name.length > 5')
+ *
+ *     query.$where(function () {
+ *       return this.comments.length > 10 || this.name.length > 5;
+ *     })
+ *
+ * @param {String|Function} js javascript string or function
+ * @return {Query} this
+ * @memberOf Query
+ * @method $where
+ * @api public
+ */
+
+Query.prototype.$where = function(js) {
+  this._conditions.$where = js;
+  return this;
+};
+
+/**
+ * Specifies a `path` for use with chaining.
+ *
+ * #### Example:
+ *
+ *     // instead of writing:
+ *     await User.find({age: {$gte: 21, $lte: 65}});
+ *
+ *     // we can instead write:
+ *     User.where('age').gte(21).lte(65);
+ *
+ *     // passing query conditions is permitted
+ *     User.find().where({ name: 'vonderful' })
+ *
+ *     // chaining
+ *     await User
+ *       .where('age').gte(21).lte(65)
+ *       .where('name', /^vonderful/i)
+ *       .where('friends').slice(10)
+ *       .exec()
+ *
+ * @param {String} [path]
+ * @param {Object} [val]
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.where = function() {
+  if (!arguments.length) return this;
+  if (!this.op) this.op = 'find';
+
+  const type = typeof arguments[0];
+
+  if ('string' == type) {
+    this._path = arguments[0];
+
+    if (2 === arguments.length) {
+      this._conditions[this._path] = arguments[1];
+    }
+
+    return this;
+  }
+
+  if ('object' == type && !Array.isArray(arguments[0])) {
+    return this.merge(arguments[0]);
+  }
+
+  throw new TypeError('path must be a string or object');
+};
+
+/**
+ * Specifies the complementary comparison value for paths specified with `where()`
+ *
+ * #### Example:
+ *
+ *     User.where('age').equals(49);
+ *
+ *     // is the same as
+ *
+ *     User.where('age', 49);
+ *
+ * @param {Object} val
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.equals = function equals(val) {
+  this._ensurePath('equals');
+  const path = this._path;
+  this._conditions[path] = val;
+  return this;
+};
+
+/**
+ * Specifies the complementary comparison value for paths specified with `where()`
+ * This is alias of `equals`
+ *
+ * #### Example:
+ *
+ *     User.where('age').eq(49);
+ *
+ *     // is the same as
+ *
+ *     User.shere('age').equals(49);
+ *
+ *     // is the same as
+ *
+ *     User.where('age', 49);
+ *
+ * @param {Object} val
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.eq = function eq(val) {
+  this._ensurePath('eq');
+  const path = this._path;
+  this._conditions[path] = val;
+  return this;
+};
+
+/**
+ * Specifies arguments for an `$or` condition.
+ *
+ * #### Example:
+ *
+ *     query.or([{ color: 'red' }, { status: 'emergency' }])
+ *
+ * @param {Array} array array of conditions
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.or = function or(array) {
+  const or = this._conditions.$or || (this._conditions.$or = []);
+  if (!Array.isArray(array)) array = [array];
+  or.push.apply(or, array);
+  return this;
+};
+
+/**
+ * Specifies arguments for a `$nor` condition.
+ *
+ * #### Example:
+ *
+ *     query.nor([{ color: 'green' }, { status: 'ok' }])
+ *
+ * @param {Array} array array of conditions
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.nor = function nor(array) {
+  const nor = this._conditions.$nor || (this._conditions.$nor = []);
+  if (!Array.isArray(array)) array = [array];
+  nor.push.apply(nor, array);
+  return this;
+};
+
+/**
+ * Specifies arguments for a `$and` condition.
+ *
+ * #### Example:
+ *
+ *     query.and([{ color: 'green' }, { status: 'ok' }])
+ *
+ * @see $and http://docs.mongodb.org/manual/reference/operator/and/
+ * @param {Array} array array of conditions
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.and = function and(array) {
+  const and = this._conditions.$and || (this._conditions.$and = []);
+  if (!Array.isArray(array)) array = [array];
+  and.push.apply(and, array);
+  return this;
+};
+
+/**
+ * Specifies a $gt query condition.
+ *
+ * When called with one argument, the most recent path passed to `where()` is used.
+ *
+ * #### Example:
+ *
+ *     Thing.find().where('age').gt(21)
+ *
+ *     // or
+ *     Thing.find().gt('age', 21)
+ *
+ * @method gt
+ * @memberOf Query
+ * @param {String} [path]
+ * @param {Number} val
+ * @api public
+ */
+
+/**
+ * Specifies a $gte query condition.
+ *
+ * When called with one argument, the most recent path passed to `where()` is used.
+ *
+ * @method gte
+ * @memberOf Query
+ * @param {String} [path]
+ * @param {Number} val
+ * @api public
+ */
+
+/**
+ * Specifies a $lt query condition.
+ *
+ * When called with one argument, the most recent path passed to `where()` is used.
+ *
+ * @method lt
+ * @memberOf Query
+ * @param {String} [path]
+ * @param {Number} val
+ * @api public
+ */
+
+/**
+ * Specifies a $lte query condition.
+ *
+ * When called with one argument, the most recent path passed to `where()` is used.
+ *
+ * @method lte
+ * @memberOf Query
+ * @param {String} [path]
+ * @param {Number} val
+ * @api public
+ */
+
+/**
+ * Specifies a $ne query condition.
+ *
+ * When called with one argument, the most recent path passed to `where()` is used.
+ *
+ * @method ne
+ * @memberOf Query
+ * @param {String} [path]
+ * @param {Number} val
+ * @api public
+ */
+
+/**
+ * Specifies an $in query condition.
+ *
+ * When called with one argument, the most recent path passed to `where()` is used.
+ *
+ * @method in
+ * @memberOf Query
+ * @param {String} [path]
+ * @param {Number} val
+ * @api public
+ */
+
+/**
+ * Specifies an $nin query condition.
+ *
+ * When called with one argument, the most recent path passed to `where()` is used.
+ *
+ * @method nin
+ * @memberOf Query
+ * @param {String} [path]
+ * @param {Number} val
+ * @api public
+ */
+
+/**
+ * Specifies an $all query condition.
+ *
+ * When called with one argument, the most recent path passed to `where()` is used.
+ *
+ * @method all
+ * @memberOf Query
+ * @param {String} [path]
+ * @param {Number} val
+ * @api public
+ */
+
+/**
+ * Specifies a $size query condition.
+ *
+ * When called with one argument, the most recent path passed to `where()` is used.
+ *
+ * @method size
+ * @memberOf Query
+ * @param {String} [path]
+ * @param {Number} val
+ * @api public
+ */
+
+/**
+ * Specifies a $regex query condition.
+ *
+ * When called with one argument, the most recent path passed to `where()` is used.
+ *
+ * @method regex
+ * @memberOf Query
+ * @param {String} [path]
+ * @param {String|RegExp} val
+ * @api public
+ */
+
+/**
+ * Specifies a $maxDistance query condition.
+ *
+ * When called with one argument, the most recent path passed to `where()` is used.
+ *
+ * @method maxDistance
+ * @memberOf Query
+ * @param {String} [path]
+ * @param {Number} val
+ * @api public
+ */
+
+/*!
+ * gt, gte, lt, lte, ne, in, nin, all, regex, size, maxDistance
+ *
+ *     Thing.where('type').nin(array)
+ */
+
+'gt gte lt lte ne in nin all regex size maxDistance minDistance'.split(' ').forEach(function($conditional) {
+  Query.prototype[$conditional] = function() {
+    let path, val;
+
+    if (1 === arguments.length) {
+      this._ensurePath($conditional);
+      val = arguments[0];
+      path = this._path;
+    } else {
+      val = arguments[1];
+      path = arguments[0];
+    }
+
+    const conds = this._conditions[path] === null || typeof this._conditions[path] === 'object' ?
+      this._conditions[path] :
+      (this._conditions[path] = {});
+    conds['$' + $conditional] = val;
+    return this;
+  };
+});
+
+/**
+ * Specifies a `$mod` condition
+ *
+ * @param {String} [path]
+ * @param {Number} val
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.mod = function() {
+  let val, path;
+
+  if (1 === arguments.length) {
+    this._ensurePath('mod');
+    val = arguments[0];
+    path = this._path;
+  } else if (2 === arguments.length && !Array.isArray(arguments[1])) {
+    this._ensurePath('mod');
+    val = [arguments[0], arguments[1]];
+    path = this._path;
+  } else if (3 === arguments.length) {
+    val = [arguments[1], arguments[2]];
+    path = arguments[0];
+  } else {
+    val = arguments[1];
+    path = arguments[0];
+  }
+
+  const conds = this._conditions[path] || (this._conditions[path] = {});
+  conds.$mod = val;
+  return this;
+};
+
+/**
+ * Specifies an `$exists` condition
+ *
+ * #### Example:
+ *
+ *     // { name: { $exists: true }}
+ *     Thing.where('name').exists()
+ *     Thing.where('name').exists(true)
+ *     Thing.find().exists('name')
+ *
+ *     // { name: { $exists: false }}
+ *     Thing.where('name').exists(false);
+ *     Thing.find().exists('name', false);
+ *
+ * @param {String} [path]
+ * @param {Number} val
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.exists = function() {
+  let path, val;
+
+  if (0 === arguments.length) {
+    this._ensurePath('exists');
+    path = this._path;
+    val = true;
+  } else if (1 === arguments.length) {
+    if ('boolean' === typeof arguments[0]) {
+      this._ensurePath('exists');
+      path = this._path;
+      val = arguments[0];
+    } else {
+      path = arguments[0];
+      val = true;
+    }
+  } else if (2 === arguments.length) {
+    path = arguments[0];
+    val = arguments[1];
+  }
+
+  const conds = this._conditions[path] || (this._conditions[path] = {});
+  conds.$exists = val;
+  return this;
+};
+
+/**
+ * Specifies an `$elemMatch` condition
+ *
+ * #### Example:
+ *
+ *     query.elemMatch('comment', { author: 'autobot', votes: {$gte: 5}})
+ *
+ *     query.where('comment').elemMatch({ author: 'autobot', votes: {$gte: 5}})
+ *
+ *     query.elemMatch('comment', function (elem) {
+ *       elem.where('author').equals('autobot');
+ *       elem.where('votes').gte(5);
+ *     })
+ *
+ *     query.where('comment').elemMatch(function (elem) {
+ *       elem.where({ author: 'autobot' });
+ *       elem.where('votes').gte(5);
+ *     })
+ *
+ * @param {String|Object|Function} path
+ * @param {Object|Function} criteria
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.elemMatch = function() {
+  if (null == arguments[0])
+    throw new TypeError('Invalid argument');
+
+  let fn, path, criteria;
+
+  if ('function' === typeof arguments[0]) {
+    this._ensurePath('elemMatch');
+    path = this._path;
+    fn = arguments[0];
+  } else if (utils.isObject(arguments[0])) {
+    this._ensurePath('elemMatch');
+    path = this._path;
+    criteria = arguments[0];
+  } else if ('function' === typeof arguments[1]) {
+    path = arguments[0];
+    fn = arguments[1];
+  } else if (arguments[1] && utils.isObject(arguments[1])) {
+    path = arguments[0];
+    criteria = arguments[1];
+  } else {
+    throw new TypeError('Invalid argument');
+  }
+
+  if (fn) {
+    criteria = new Query;
+    fn(criteria);
+    criteria = criteria._conditions;
+  }
+
+  const conds = this._conditions[path] || (this._conditions[path] = {});
+  conds.$elemMatch = criteria;
+  return this;
+};
+
+// Spatial queries
+
+/**
+ * Sugar for geo-spatial queries.
+ *
+ * #### Example:
+ *
+ *     query.within().box()
+ *     query.within().circle()
+ *     query.within().geometry()
+ *
+ *     query.where('loc').within({ center: [50,50], radius: 10, unique: true, spherical: true });
+ *     query.where('loc').within({ box: [[40.73, -73.9], [40.7, -73.988]] });
+ *     query.where('loc').within({ polygon: [[],[],[],[]] });
+ *
+ *     query.where('loc').within([], [], []) // polygon
+ *     query.where('loc').within([], []) // box
+ *     query.where('loc').within({ type: 'LineString', coordinates: [...] }); // geometry
+ *
+ * #### Note:
+ *
+ * Must be used after `where()`.
+ *
+ * @memberOf Query
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.within = function within() {
+  // opinionated, must be used after where
+  this._ensurePath('within');
+  this._geoComparison = $withinCmd;
+
+  if (0 === arguments.length) {
+    return this;
+  }
+
+  if (2 === arguments.length) {
+    return this.box.apply(this, arguments);
+  } else if (2 < arguments.length) {
+    return this.polygon.apply(this, arguments);
+  }
+
+  const area = arguments[0];
+
+  if (!area)
+    throw new TypeError('Invalid argument');
+
+  if (area.center)
+    return this.circle(area);
+
+  if (area.box)
+    return this.box.apply(this, area.box);
+
+  if (area.polygon)
+    return this.polygon.apply(this, area.polygon);
+
+  if (area.type && area.coordinates)
+    return this.geometry(area);
+
+  throw new TypeError('Invalid argument');
+};
+
+/**
+ * Specifies a $box condition
+ *
+ * #### Example:
+ *
+ *     var lowerLeft = [40.73083, -73.99756]
+ *     var upperRight= [40.741404,  -73.988135]
+ *
+ *     query.where('loc').within().box(lowerLeft, upperRight)
+ *     query.box('loc', lowerLeft, upperRight )
+ *
+ * @see http://www.mongodb.org/display/DOCS/Geospatial+Indexing
+ * @see Query#within #query_Query-within
+ * @param {String} path
+ * @param {Object} val
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.box = function() {
+  let path, box;
+
+  if (3 === arguments.length) {
+    // box('loc', [], [])
+    path = arguments[0];
+    box = [arguments[1], arguments[2]];
+  } else if (2 === arguments.length) {
+    // box([], [])
+    this._ensurePath('box');
+    path = this._path;
+    box = [arguments[0], arguments[1]];
+  } else {
+    throw new TypeError('Invalid argument');
+  }
+
+  const conds = this._conditions[path] || (this._conditions[path] = {});
+  conds[this._geoComparison || $withinCmd] = { $box: box };
+  return this;
+};
+
+/**
+ * Specifies a $polygon condition
+ *
+ * #### Example:
+ *
+ *     query.where('loc').within().polygon([10,20], [13, 25], [7,15])
+ *     query.polygon('loc', [10,20], [13, 25], [7,15])
+ *
+ * @param {String|Array} [path]
+ * @param {Array|Object} [val]
+ * @return {Query} this
+ * @see http://www.mongodb.org/display/DOCS/Geospatial+Indexing
+ * @api public
+ */
+
+Query.prototype.polygon = function() {
+  let val, path;
+
+  if ('string' == typeof arguments[0]) {
+    // polygon('loc', [],[],[])
+    val = Array.from(arguments);
+    path = val.shift();
+  } else {
+    // polygon([],[],[])
+    this._ensurePath('polygon');
+    path = this._path;
+    val = Array.from(arguments);
+  }
+
+  const conds = this._conditions[path] || (this._conditions[path] = {});
+  conds[this._geoComparison || $withinCmd] = { $polygon: val };
+  return this;
+};
+
+/**
+ * Specifies a $center or $centerSphere condition.
+ *
+ * #### Example:
+ *
+ *     var area = { center: [50, 50], radius: 10, unique: true }
+ *     query.where('loc').within().circle(area)
+ *     query.center('loc', area);
+ *
+ *     // for spherical calculations
+ *     var area = { center: [50, 50], radius: 10, unique: true, spherical: true }
+ *     query.where('loc').within().circle(area)
+ *     query.center('loc', area);
+ *
+ * @param {String} [path]
+ * @param {Object} area
+ * @return {Query} this
+ * @see http://www.mongodb.org/display/DOCS/Geospatial+Indexing
+ * @api public
+ */
+
+Query.prototype.circle = function() {
+  let path, val;
+
+  if (1 === arguments.length) {
+    this._ensurePath('circle');
+    path = this._path;
+    val = arguments[0];
+  } else if (2 === arguments.length) {
+    path = arguments[0];
+    val = arguments[1];
+  } else {
+    throw new TypeError('Invalid argument');
+  }
+
+  if (!('radius' in val && val.center))
+    throw new Error('center and radius are required');
+
+  const conds = this._conditions[path] || (this._conditions[path] = {});
+
+  const type = val.spherical
+    ? '$centerSphere'
+    : '$center';
+
+  const wKey = this._geoComparison || $withinCmd;
+  conds[wKey] = {};
+  conds[wKey][type] = [val.center, val.radius];
+
+  if ('unique' in val)
+    conds[wKey].$uniqueDocs = !!val.unique;
+
+  return this;
+};
+
+/**
+ * Specifies a `$near` or `$nearSphere` condition
+ *
+ * These operators return documents sorted by distance.
+ *
+ * #### Example:
+ *
+ *     query.where('loc').near({ center: [10, 10] });
+ *     query.where('loc').near({ center: [10, 10], maxDistance: 5 });
+ *     query.where('loc').near({ center: [10, 10], maxDistance: 5, spherical: true });
+ *     query.near('loc', { center: [10, 10], maxDistance: 5 });
+ *     query.near({ center: { type: 'Point', coordinates: [..] }})
+ *     query.near().geometry({ type: 'Point', coordinates: [..] })
+ *
+ * @param {String} [path]
+ * @param {Object} val
+ * @return {Query} this
+ * @see http://www.mongodb.org/display/DOCS/Geospatial+Indexing
+ * @api public
+ */
+
+Query.prototype.near = function near() {
+  let path, val;
+
+  this._geoComparison = '$near';
+
+  if (0 === arguments.length) {
+    return this;
+  } else if (1 === arguments.length) {
+    this._ensurePath('near');
+    path = this._path;
+    val = arguments[0];
+  } else if (2 === arguments.length) {
+    path = arguments[0];
+    val = arguments[1];
+  } else {
+    throw new TypeError('Invalid argument');
+  }
+
+  if (!val.center) {
+    throw new Error('center is required');
+  }
+
+  const conds = this._conditions[path] || (this._conditions[path] = {});
+
+  const type = val.spherical
+    ? '$nearSphere'
+    : '$near';
+
+  // center could be a GeoJSON object or an Array
+  if (Array.isArray(val.center)) {
+    conds[type] = val.center;
+
+    const radius = 'maxDistance' in val
+      ? val.maxDistance
+      : null;
+
+    if (null != radius) {
+      conds.$maxDistance = radius;
+    }
+    if (null != val.minDistance) {
+      conds.$minDistance = val.minDistance;
+    }
+  } else {
+    // GeoJSON?
+    if (val.center.type != 'Point' || !Array.isArray(val.center.coordinates)) {
+      throw new Error(util.format('Invalid GeoJSON specified for %s', type));
+    }
+    conds[type] = { $geometry: val.center };
+
+    // MongoDB 2.6 insists on maxDistance being in $near / $nearSphere
+    if ('maxDistance' in val) {
+      conds[type]['$maxDistance'] = val.maxDistance;
+    }
+    if ('minDistance' in val) {
+      conds[type]['$minDistance'] = val.minDistance;
+    }
+  }
+
+  return this;
+};
+
+/**
+ * Declares an intersects query for `geometry()`.
+ *
+ * #### Example:
+ *
+ *     query.where('path').intersects().geometry({
+ *         type: 'LineString'
+ *       , coordinates: [[180.0, 11.0], [180, 9.0]]
+ *     })
+ *
+ *     query.where('path').intersects({
+ *         type: 'LineString'
+ *       , coordinates: [[180.0, 11.0], [180, 9.0]]
+ *     })
+ *
+ * @param {Object} [arg]
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.intersects = function intersects() {
+  // opinionated, must be used after where
+  this._ensurePath('intersects');
+
+  this._geoComparison = '$geoIntersects';
+
+  if (0 === arguments.length) {
+    return this;
+  }
+
+  const area = arguments[0];
+
+  if (null != area && area.type && area.coordinates)
+    return this.geometry(area);
+
+  throw new TypeError('Invalid argument');
+};
+
+/**
+ * Specifies a `$geometry` condition
+ *
+ * #### Example:
+ *
+ *     var polyA = [[[ 10, 20 ], [ 10, 40 ], [ 30, 40 ], [ 30, 20 ]]]
+ *     query.where('loc').within().geometry({ type: 'Polygon', coordinates: polyA })
+ *
+ *     // or
+ *     var polyB = [[ 0, 0 ], [ 1, 1 ]]
+ *     query.where('loc').within().geometry({ type: 'LineString', coordinates: polyB })
+ *
+ *     // or
+ *     var polyC = [ 0, 0 ]
+ *     query.where('loc').within().geometry({ type: 'Point', coordinates: polyC })
+ *
+ *     // or
+ *     query.where('loc').intersects().geometry({ type: 'Point', coordinates: polyC })
+ *
+ * #### Note:
+ *
+ * `geometry()` **must** come after either `intersects()` or `within()`.
+ *
+ * The `object` argument must contain `type` and `coordinates` properties.
+ * - type {String}
+ * - coordinates {Array}
+ *
+ * The most recent path passed to `where()` is used.
+ *
+ * @param {Object} object Must contain a `type` property which is a String and a `coordinates` property which is an Array. See the examples.
+ * @return {Query} this
+ * @see http://docs.mongodb.org/manual/release-notes/2.4/#new-geospatial-indexes-with-geojson-and-improved-spherical-geometry
+ * @see http://www.mongodb.org/display/DOCS/Geospatial+Indexing
+ * @see $geometry http://docs.mongodb.org/manual/reference/operator/geometry/
+ * @api public
+ */
+
+Query.prototype.geometry = function geometry() {
+  if (!('$within' == this._geoComparison ||
+        '$geoWithin' == this._geoComparison ||
+        '$near' == this._geoComparison ||
+        '$geoIntersects' == this._geoComparison)) {
+    throw new Error('geometry() must come after `within()`, `intersects()`, or `near()');
+  }
+
+  let val, path;
+
+  if (1 === arguments.length) {
+    this._ensurePath('geometry');
+    path = this._path;
+    val = arguments[0];
+  } else {
+    throw new TypeError('Invalid argument');
+  }
+
+  if (!(val.type && Array.isArray(val.coordinates))) {
+    throw new TypeError('Invalid argument');
+  }
+
+  const conds = this._conditions[path] || (this._conditions[path] = {});
+  conds[this._geoComparison] = { $geometry: val };
+
+  return this;
+};
+
+// end spatial
+
+/**
+ * Specifies which document fields to include or exclude
+ *
+ * #### String syntax
+ *
+ * When passing a string, prefixing a path with `-` will flag that path as excluded. When a path does not have the `-` prefix, it is included.
+ *
+ * #### Example:
+ *
+ *     // include a and b, exclude c
+ *     query.select('a b -c');
+ *
+ *     // or you may use object notation, useful when
+ *     // you have keys already prefixed with a "-"
+ *     query.select({a: 1, b: 1, c: 0});
+ *
+ * #### Note:
+ *
+ * Cannot be used with `distinct()`
+ *
+ * @param {Object|String} arg
+ * @return {Query} this
+ * @see SchemaType
+ * @api public
+ */
+
+Query.prototype.select = function select() {
+  let arg = arguments[0];
+  if (!arg) return this;
+
+  if (arguments.length !== 1) {
+    throw new Error('Invalid select: select only takes 1 argument');
+  }
+
+  this._validate('select');
+
+  const fields = this._fields || (this._fields = {});
+  const type = typeof arg;
+  let i, len;
+
+  if (('string' == type || utils.isArgumentsObject(arg)) &&
+    'number' == typeof arg.length || Array.isArray(arg)) {
+    if ('string' == type)
+      arg = arg.split(/\s+/);
+
+    for (i = 0, len = arg.length; i < len; ++i) {
+      let field = arg[i];
+      if (!field) continue;
+      const include = '-' == field[0] ? 0 : 1;
+      if (include === 0) field = field.substring(1);
+      fields[field] = include;
+    }
+
+    return this;
+  }
+
+  if (utils.isObject(arg)) {
+    const keys = utils.keys(arg);
+    for (i = 0; i < keys.length; ++i) {
+      fields[keys[i]] = arg[keys[i]];
+    }
+    return this;
+  }
+
+  throw new TypeError('Invalid select() argument. Must be string or object.');
+};
+
+/**
+ * Specifies a $slice condition for a `path`
+ *
+ * #### Example:
+ *
+ *     query.slice('comments', 5)
+ *     query.slice('comments', -5)
+ *     query.slice('comments', [10, 5])
+ *     query.where('comments').slice(5)
+ *     query.where('comments').slice([-10, 5])
+ *
+ * @param {String} [path]
+ * @param {Number} val number/range of elements to slice
+ * @return {Query} this
+ * @see mongodb http://www.mongodb.org/display/DOCS/Retrieving+a+Subset+of+Fields#RetrievingaSubsetofFields-RetrievingaSubrangeofArrayElements
+ * @api public
+ */
+
+Query.prototype.slice = function() {
+  if (0 === arguments.length)
+    return this;
+
+  this._validate('slice');
+
+  let path, val;
+
+  if (1 === arguments.length) {
+    const arg = arguments[0];
+    if (typeof arg === 'object' && !Array.isArray(arg)) {
+      const keys = Object.keys(arg);
+      const numKeys = keys.length;
+      for (let i = 0; i < numKeys; ++i) {
+        this.slice(keys[i], arg[keys[i]]);
+      }
+      return this;
+    }
+    this._ensurePath('slice');
+    path = this._path;
+    val = arguments[0];
+  } else if (2 === arguments.length) {
+    if ('number' === typeof arguments[0]) {
+      this._ensurePath('slice');
+      path = this._path;
+      val = [arguments[0], arguments[1]];
+    } else {
+      path = arguments[0];
+      val = arguments[1];
+    }
+  } else if (3 === arguments.length) {
+    path = arguments[0];
+    val = [arguments[1], arguments[2]];
+  }
+
+  const myFields = this._fields || (this._fields = {});
+  myFields[path] = { $slice: val };
+  return this;
+};
+
+/**
+ * Sets the sort order
+ *
+ * If an object is passed, values allowed are 'asc', 'desc', 'ascending', 'descending', 1, and -1.
+ *
+ * If a string is passed, it must be a space delimited list of path names. The sort order of each path is ascending unless the path name is prefixed with `-` which will be treated as descending.
+ *
+ * #### Example:
+ *
+ *     // these are equivalent
+ *     query.sort({ field: 'asc', test: -1 });
+ *     query.sort('field -test');
+ *     query.sort([['field', 1], ['test', -1]]);
+ *
+ * #### Note:
+ *
+ *  - The array syntax `.sort([['field', 1], ['test', -1]])` can only be used with [mongodb driver >= 2.0.46](https://github.com/mongodb/node-mongodb-native/blob/2.1/HISTORY.md#2046-2015-10-15).
+ *  - Cannot be used with `distinct()`
+ *
+ * @param {Object|String|Array} arg
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.sort = function(arg) {
+  if (!arg) return this;
+  let i, len, field;
+
+  this._validate('sort');
+
+  const type = typeof arg;
+
+  // .sort([['field', 1], ['test', -1]])
+  if (Array.isArray(arg)) {
+    len = arg.length;
+    for (i = 0; i < arg.length; ++i) {
+      if (!Array.isArray(arg[i])) {
+        throw new Error('Invalid sort() argument, must be array of arrays');
+      }
+      _pushArr(this.options, arg[i][0], arg[i][1]);
+    }
+    return this;
+  }
+
+  // .sort('field -test')
+  if (1 === arguments.length && 'string' == type) {
+    arg = arg.split(/\s+/);
+    len = arg.length;
+    for (i = 0; i < len; ++i) {
+      field = arg[i];
+      if (!field) continue;
+      const ascend = '-' == field[0] ? -1 : 1;
+      if (ascend === -1) field = field.substring(1);
+      push(this.options, field, ascend);
+    }
+
+    return this;
+  }
+
+  // .sort({ field: 1, test: -1 })
+  if (utils.isObject(arg)) {
+    const keys = utils.keys(arg);
+    for (i = 0; i < keys.length; ++i) {
+      field = keys[i];
+      push(this.options, field, arg[field]);
+    }
+
+    return this;
+  }
+
+  if (typeof Map !== 'undefined' && arg instanceof Map) {
+    _pushMap(this.options, arg);
+    return this;
+  }
+  throw new TypeError('Invalid sort() argument. Must be a string, object, or array.');
+};
+
+/*!
+ * @ignore
+ */
+
+const _validSortValue = {
+  1: 1,
+  '-1': -1,
+  asc: 1,
+  ascending: 1,
+  desc: -1,
+  descending: -1
+};
+
+function push(opts, field, value) {
+  if (Array.isArray(opts.sort)) {
+    throw new TypeError('Can\'t mix sort syntaxes. Use either array or object:' +
+      '\n- `.sort([[\'field\', 1], [\'test\', -1]])`' +
+      '\n- `.sort({ field: 1, test: -1 })`');
+  }
+
+  let s;
+  if (value && value.$meta) {
+    s = opts.sort || (opts.sort = {});
+    s[field] = { $meta: value.$meta };
+    return;
+  }
+
+  s = opts.sort || (opts.sort = {});
+  let val = String(value || 1).toLowerCase();
+  val = _validSortValue[val];
+  if (!val) throw new TypeError('Invalid sort value: { ' + field + ': ' + value + ' }');
+
+  s[field] = val;
+}
+
+function _pushArr(opts, field, value) {
+  opts.sort = opts.sort || [];
+  if (!Array.isArray(opts.sort)) {
+    throw new TypeError('Can\'t mix sort syntaxes. Use either array or object:' +
+      '\n- `.sort([[\'field\', 1], [\'test\', -1]])`' +
+      '\n- `.sort({ field: 1, test: -1 })`');
+  }
+
+  let val = String(value || 1).toLowerCase();
+  val = _validSortValue[val];
+  if (!val) throw new TypeError('Invalid sort value: [ ' + field + ', ' + value + ' ]');
+
+  opts.sort.push([field, val]);
+}
+
+function _pushMap(opts, map) {
+  opts.sort = opts.sort || new Map();
+  if (!(opts.sort instanceof Map)) {
+    throw new TypeError('Can\'t mix sort syntaxes. Use either array or ' +
+      'object or map consistently');
+  }
+  map.forEach(function(value, key) {
+    let val = String(value || 1).toLowerCase();
+    val = _validSortValue[val];
+    if (!val) throw new TypeError('Invalid sort value: < ' + key + ': ' + value + ' >');
+
+    opts.sort.set(key, val);
+  });
+}
+
+
+/**
+ * Specifies the limit option.
+ *
+ * #### Example:
+ *
+ *     query.limit(20)
+ *
+ * #### Note:
+ *
+ * Cannot be used with `distinct()`
+ *
+ * @method limit
+ * @memberOf Query
+ * @param {Number} val
+ * @see mongodb http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%7B%7Blimit%28%29%7D%7D
+ * @api public
+ */
+/**
+ * Specifies the skip option.
+ *
+ * #### Example:
+ *
+ *     query.skip(100).limit(20)
+ *
+ * #### Note:
+ *
+ * Cannot be used with `distinct()`
+ *
+ * @method skip
+ * @memberOf Query
+ * @param {Number} val
+ * @see mongodb http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%7B%7Bskip%28%29%7D%7D
+ * @api public
+ */
+/**
+ * Specifies the batchSize option.
+ *
+ * #### Example:
+ *
+ *     query.batchSize(100)
+ *
+ * #### Note:
+ *
+ * Cannot be used with `distinct()`
+ *
+ * @method batchSize
+ * @memberOf Query
+ * @param {Number} val
+ * @see mongodb http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%7B%7BbatchSize%28%29%7D%7D
+ * @api public
+ */
+/**
+ * Specifies the `comment` option.
+ *
+ * #### Example:
+ *
+ *     query.comment('login query')
+ *
+ * #### Note:
+ *
+ * Cannot be used with `distinct()`
+ *
+ * @method comment
+ * @memberOf Query
+ * @param {Number} val
+ * @see mongodb http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%24comment
+ * @api public
+ */
+
+/*!
+ * limit, skip, batchSize, comment
+ *
+ * Sets these associated options.
+ *
+ *     query.comment('feed query');
+ */
+
+['limit', 'skip', 'batchSize', 'comment'].forEach(function(method) {
+  Query.prototype[method] = function(v) {
+    this._validate(method);
+    this.options[method] = v;
+    return this;
+  };
+});
+
+/**
+ * Specifies the maxTimeMS option.
+ *
+ * #### Example:
+ *
+ *     query.maxTime(100)
+ *     query.maxTimeMS(100)
+ *
+ * @method maxTime
+ * @memberOf Query
+ * @param {Number} ms
+ * @see mongodb http://docs.mongodb.org/manual/reference/operator/meta/maxTimeMS/#op._S_maxTimeMS
+ * @api public
+ */
+
+Query.prototype.maxTime = Query.prototype.maxTimeMS = function(ms) {
+  this._validate('maxTime');
+  this.options.maxTimeMS = ms;
+  return this;
+};
+
+/**
+ * Sets query hints.
+ *
+ * #### Example:
+ *
+ *     query.hint({ indexA: 1, indexB: -1});
+ *     query.hint('indexA_1_indexB_1');
+ *
+ * #### Note:
+ *
+ * Cannot be used with `distinct()`
+ *
+ * @param {Object|string} val a hint object or the index name
+ * @return {Query} this
+ * @see mongodb http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%24hint
+ * @api public
+ */
+
+Query.prototype.hint = function() {
+  if (0 === arguments.length) return this;
+
+  this._validate('hint');
+
+  const arg = arguments[0];
+  if (utils.isObject(arg)) {
+    const hint = this.options.hint || (this.options.hint = {});
+
+    // must keep object keys in order so don't use Object.keys()
+    for (const k in arg) {
+      hint[k] = arg[k];
+    }
+
+    return this;
+  }
+  if (typeof arg === 'string') {
+    this.options.hint = arg;
+    return this;
+  }
+
+  throw new TypeError('Invalid hint. ' + arg);
+};
+
+/**
+ * Requests acknowledgement that this operation has been persisted to MongoDB's
+ * on-disk journal.
+ * This option is only valid for operations that write to the database:
+ *
+ * - `deleteOne()`
+ * - `deleteMany()`
+ * - `findOneAndDelete()`
+ * - `findOneAndUpdate()`
+ * - `updateOne()`
+ * - `updateMany()`
+ *
+ * Defaults to the `j` value if it is specified in writeConcern options
+ *
+ * #### Example:
+ *
+ *     mquery().w(2).j(true).wtimeout(2000);
+ *
+ * @method j
+ * @memberOf Query
+ * @instance
+ * @param {boolean} val
+ * @see mongodb https://docs.mongodb.com/manual/reference/write-concern/#j-option
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.j = function j(val) {
+  this.options.j = val;
+  return this;
+};
+
+/**
+ * Sets the slaveOk option. _Deprecated_ in MongoDB 2.2 in favor of read preferences.
+ *
+ * #### Example:
+ *
+ *     query.slaveOk() // true
+ *     query.slaveOk(true)
+ *     query.slaveOk(false)
+ *
+ * @deprecated use read() preferences instead if on mongodb >= 2.2
+ * @param {Boolean} v defaults to true
+ * @see mongodb http://docs.mongodb.org/manual/applications/replication/#read-preference
+ * @see read()
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.slaveOk = function(v) {
+  this.options.slaveOk = arguments.length ? !!v : true;
+  return this;
+};
+
+/**
+ * Sets the readPreference option for the query.
+ *
+ * #### Example:
+ *
+ *     new Query().read('primary')
+ *     new Query().read('p')  // same as primary
+ *
+ *     new Query().read('primaryPreferred')
+ *     new Query().read('pp') // same as primaryPreferred
+ *
+ *     new Query().read('secondary')
+ *     new Query().read('s')  // same as secondary
+ *
+ *     new Query().read('secondaryPreferred')
+ *     new Query().read('sp') // same as secondaryPreferred
+ *
+ *     new Query().read('nearest')
+ *     new Query().read('n')  // same as nearest
+ *
+ *     // you can also use mongodb.ReadPreference class to also specify tags
+ *     new Query().read(mongodb.ReadPreference('secondary', [{ dc:'sf', s: 1 },{ dc:'ma', s: 2 }]))
+ *
+ *     new Query().setReadPreference('primary') // alias of .read()
+ *
+ * #### Preferences:
+ *
+ *     primary - (default)  Read from primary only. Operations will produce an error if primary is unavailable. Cannot be combined with tags.
+ *     secondary            Read from secondary if available, otherwise error.
+ *     primaryPreferred     Read from primary if available, otherwise a secondary.
+ *     secondaryPreferred   Read from a secondary if available, otherwise read from the primary.
+ *     nearest              All operations read from among the nearest candidates, but unlike other modes, this option will include both the primary and all secondaries in the random selection.
+ *
+ * Aliases
+ *
+ *     p   primary
+ *     pp  primaryPreferred
+ *     s   secondary
+ *     sp  secondaryPreferred
+ *     n   nearest
+ *
+ * Read more about how to use read preferences [here](http://docs.mongodb.org/manual/applications/replication/#read-preference) and [here](http://mongodb.github.com/node-mongodb-native/driver-articles/anintroductionto1_1and2_2.html#read-preferences).
+ *
+ * @param {String|ReadPreference} pref one of the listed preference options or their aliases
+ * @see mongodb http://docs.mongodb.org/manual/applications/replication/#read-preference
+ * @see driver http://mongodb.github.com/node-mongodb-native/driver-articles/anintroductionto1_1and2_2.html#read-preferences
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.read = Query.prototype.setReadPreference = function(pref) {
+  if (arguments.length > 1 && !Query.prototype.read.deprecationWarningIssued) {
+    console.error('Deprecation warning: \'tags\' argument is not supported anymore in Query.read() method. Please use mongodb.ReadPreference object instead.');
+    Query.prototype.read.deprecationWarningIssued = true;
+  }
+  this.options.readPreference = utils.readPref(pref);
+  return this;
+};
+
+/**
+ * Sets the readConcern option for the query.
+ *
+ * #### Example:
+ *
+ *     new Query().readConcern('local')
+ *     new Query().readConcern('l')  // same as local
+ *
+ *     new Query().readConcern('available')
+ *     new Query().readConcern('a')  // same as available
+ *
+ *     new Query().readConcern('majority')
+ *     new Query().readConcern('m')  // same as majority
+ *
+ *     new Query().readConcern('linearizable')
+ *     new Query().readConcern('lz') // same as linearizable
+ *
+ *     new Query().readConcern('snapshot')
+ *     new Query().readConcern('s')  // same as snapshot
+ *
+ *     new Query().r('s') // r is alias of readConcern
+ *
+ *
+ * #### Read Concern Level:
+ *
+ *     local         MongoDB 3.2+ The query returns from the instance with no guarantee guarantee that the data has been written to a majority of the replica set members (i.e. may be rolled back).
+ *     available     MongoDB 3.6+ The query returns from the instance with no guarantee guarantee that the data has been written to a majority of the replica set members (i.e. may be rolled back).
+ *     majority      MongoDB 3.2+ The query returns the data that has been acknowledged by a majority of the replica set members. The documents returned by the read operation are durable, even in the event of failure.
+ *     linearizable  MongoDB 3.4+ The query returns data that reflects all successful majority-acknowledged writes that completed prior to the start of the read operation. The query may wait for concurrently executing writes to propagate to a majority of replica set members before returning results.
+ *     snapshot      MongoDB 4.0+ Only available for operations within multi-document transactions. Upon transaction commit with write concern "majority", the transaction operations are guaranteed to have read from a snapshot of majority-committed data.
+ *
+ * Aliases
+ *
+ *     l   local
+ *     a   available
+ *     m   majority
+ *     lz  linearizable
+ *     s   snapshot
+ *
+ * Read more about how to use read concern [here](https://docs.mongodb.com/manual/reference/read-concern/).
+ *
+ * @param {String} level one of the listed read concern level or their aliases
+ * @see mongodb https://docs.mongodb.com/manual/reference/read-concern/
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.readConcern = Query.prototype.r = function(level) {
+  this.options.readConcern = utils.readConcern(level);
+  return this;
+};
+
+/**
+ * Sets tailable option.
+ *
+ * #### Example:
+ *
+ *     query.tailable() <== true
+ *     query.tailable(true)
+ *     query.tailable(false)
+ *
+ * #### Note:
+ *
+ * Cannot be used with `distinct()`
+ *
+ * @param {Boolean} v defaults to true
+ * @see mongodb http://www.mongodb.org/display/DOCS/Tailable+Cursors
+ * @api public
+ */
+
+Query.prototype.tailable = function() {
+  this._validate('tailable');
+
+  this.options.tailable = arguments.length
+    ? !!arguments[0]
+    : true;
+
+  return this;
+};
+
+/**
+ * Sets the specified number of `mongod` servers, or tag set of `mongod` servers,
+ * that must acknowledge this write before this write is considered successful.
+ * This option is only valid for operations that write to the database:
+ *
+ * - `deleteOne()`
+ * - `deleteMany()`
+ * - `findOneAndDelete()`
+ * - `findOneAndUpdate()`
+ * - `updateOne()`
+ * - `updateMany()`
+ *
+ * Defaults to the `w` value if it is specified in writeConcern options
+ *
+ * #### Example:
+ *
+ *     mquery().writeConcern(0)
+ *     mquery().writeConcern(1)
+ *     mquery().writeConcern({ w: 1, j: true, wtimeout: 2000 })
+ *     mquery().writeConcern('majority')
+ *     mquery().writeConcern('m') // same as majority
+ *     mquery().writeConcern('tagSetName') // if the tag set is 'm', use .writeConcern({ w: 'm' }) instead
+ *     mquery().w(1) // w is alias of writeConcern
+ *
+ * @method writeConcern
+ * @memberOf Query
+ * @instance
+ * @param {String|number|object} concern 0 for fire-and-forget, 1 for acknowledged by one server, 'majority' for majority of the replica set, or [any of the more advanced options](https://docs.mongodb.com/manual/reference/write-concern/#w-option).
+ * @see mongodb https://docs.mongodb.com/manual/reference/write-concern/#w-option
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.writeConcern = Query.prototype.w = function writeConcern(concern) {
+  if ('object' === typeof concern) {
+    if ('undefined' !== typeof concern.j) this.options.j = concern.j;
+    if ('undefined' !== typeof concern.w) this.options.w = concern.w;
+    if ('undefined' !== typeof concern.wtimeout) this.options.wtimeout = concern.wtimeout;
+  } else {
+    this.options.w = 'm' === concern ? 'majority' : concern;
+  }
+  return this;
+};
+
+/**
+ * Specifies a time limit, in milliseconds, for the write concern.
+ * If `ms > 1`, it is maximum amount of time to wait for this write
+ * to propagate through the replica set before this operation fails.
+ * The default is `0`, which means no timeout.
+ *
+ * This option is only valid for operations that write to the database:
+ *
+ * - `deleteOne()`
+ * - `deleteMany()`
+ * - `findOneAndDelete()`
+ * - `findOneAndUpdate()`
+ * - `updateOne()`
+ * - `updateMany()`
+ *
+ * Defaults to `wtimeout` value if it is specified in writeConcern
+ *
+ * #### Example:
+ *
+ *     mquery().w(2).j(true).wtimeout(2000)
+ *
+ * @method wtimeout
+ * @memberOf Query
+ * @instance
+ * @param {number} ms number of milliseconds to wait
+ * @see mongodb https://docs.mongodb.com/manual/reference/write-concern/#wtimeout
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.wtimeout = Query.prototype.wTimeout = function wtimeout(ms) {
+  this.options.wtimeout = ms;
+  return this;
+};
+
+/**
+ * Merges another Query or conditions object into this one.
+ *
+ * When a Query is passed, conditions, field selection and options are merged.
+ *
+ * @param {Query|Object} source
+ * @return {Query} this
+ */
+
+Query.prototype.merge = function(source) {
+  if (!source)
+    return this;
+
+  if (!Query.canMerge(source))
+    throw new TypeError('Invalid argument. Expected instanceof mquery or plain object');
+
+  if (source instanceof Query) {
+    // if source has a feature, apply it to ourselves
+
+    if (source._conditions) {
+      utils.merge(this._conditions, source._conditions);
+    }
+
+    if (source._fields) {
+      this._fields || (this._fields = {});
+      utils.merge(this._fields, source._fields);
+    }
+
+    if (source.options) {
+      this.options || (this.options = {});
+      utils.merge(this.options, source.options);
+    }
+
+    if (source._updateDoc) {
+      this._updateDoc || (this._updateDoc = {});
+      utils.mergeClone(this._updateDoc, source._updateDoc);
+    }
+
+    if (source._distinctDoc) {
+      this._distinctDoc = source._distinctDoc;
+    }
+
+    return this;
+  }
+
+  // plain object
+  utils.merge(this._conditions, source);
+
+  return this;
+};
+
+/**
+ * Finds documents.
+ *
+ * #### Example:
+ *
+ *     query.find()
+ *     await query.find()
+ *     await query.find({ name: 'Burning Lights' })
+ *
+ * @param {Object} [criteria] mongodb selector
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.find = function(criteria) {
+  this.op = 'find';
+
+  if (Query.canMerge(criteria)) {
+    this.merge(criteria);
+  }
+
+  return this;
+};
+
+/**
+ * Executes a `find` Query
+ * @returns the result
+ */
+Query.prototype._find = async function _find() {
+  const conds = this._conditions;
+  const options = this._optionsForExec();
+
+  if (this.$useProjection) {
+    options.projection = this._fieldsForExec();
+  } else {
+    options.fields = this._fieldsForExec();
+  }
+
+  debug('_find', this._collection.collectionName, conds, options);
+
+  return this._collection.find(conds, options);
+};
+
+/**
+ * Returns the query cursor
+ *
+ * #### Examples:
+ *
+ *     query.find().cursor();
+ *     query.cursor({ name: 'Burning Lights' });
+ *
+ * @param {Object} [criteria] mongodb selector
+ * @return {Object} cursor
+ * @api public
+ */
+
+Query.prototype.cursor = function cursor(criteria) {
+  if (this.op) {
+    if (this.op !== 'find') {
+      throw new TypeError('.cursor only support .find method');
+    }
+  } else {
+    this.find(criteria);
+  }
+
+  const conds = this._conditions;
+  const options = this._optionsForExec();
+
+  if (this.$useProjection) {
+    options.projection = this._fieldsForExec();
+  } else {
+    options.fields = this._fieldsForExec();
+  }
+
+  debug('findCursor', this._collection.collectionName, conds, options);
+  return this._collection.findCursor(conds, options);
+};
+
+/**
+ * Executes the query as a findOne() operation.
+ *
+ * #### Example:
+ *
+ *     query.findOne().where('name', /^Burning/);
+ *
+ *     query.findOne({ name: /^Burning/ })
+ *
+ *     await query.findOne({ name: /^Burning/ }); // executes
+ *
+ * @param {Object|Query} [criteria] mongodb selector
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.findOne = function(criteria) {
+  this.op = 'findOne';
+
+  if (Query.canMerge(criteria)) {
+    this.merge(criteria);
+  }
+
+  return this;
+};
+
+/**
+ * Executes a `findOne` Query
+ * @returns the results
+ */
+Query.prototype._findOne = async function _findOne() {
+  const conds = this._conditions;
+  const options = this._optionsForExec();
+
+  if (this.$useProjection) {
+    options.projection = this._fieldsForExec();
+  } else {
+    options.fields = this._fieldsForExec();
+  }
+
+  debug('findOne', this._collection.collectionName, conds, options);
+
+  return this._collection.findOne(conds, options);
+};
+
+/**
+ * Exectues the query as a count() operation.
+ *
+ * #### Example:
+ *
+ *     query.count().where('color', 'black').exec();
+ *
+ *     query.count({ color: 'black' })
+ *
+ *     await query.count({ color: 'black' });
+ *
+ *     const doc = await query.where('color', 'black').count();
+ *     console.log('there are %d kittens', count);
+ *
+ * @param {Object} [criteria] mongodb selector
+ * @return {Query} this
+ * @see mongodb http://www.mongodb.org/display/DOCS/Aggregation#Aggregation-Count
+ * @api public
+ */
+
+Query.prototype.count = function(criteria) {
+  this.op = 'count';
+  this._validate();
+
+  if (Query.canMerge(criteria)) {
+    this.merge(criteria);
+  }
+
+  return this;
+};
+
+/**
+ * Executes a `count` Query
+ * @returns the results
+ */
+Query.prototype._count = async function _count() {
+  const conds = this._conditions,
+      options = this._optionsForExec();
+
+  debug('count', this._collection.collectionName, conds, options);
+
+  return this._collection.count(conds, options);
+};
+
+/**
+ * Declares or executes a distinct() operation.
+ *
+ * #### Example:
+ *
+ *     await distinct(criteria, field)
+ *     distinct(criteria, field)
+ *     await distinct(field)
+ *     distinct(field)
+ *     await distinct()
+ *     distinct()
+ *
+ * @param {Object|Query} [criteria]
+ * @param {String} [field]
+ * @return {Query} this
+ * @see mongodb http://www.mongodb.org/display/DOCS/Aggregation#Aggregation-Distinct
+ * @api public
+ */
+
+Query.prototype.distinct = function(criteria, field) {
+  this.op = 'distinct';
+  this._validate();
+
+  if (!field && typeof criteria === 'string') {
+    field = criteria;
+    criteria = undefined;
+  }
+
+  if ('string' == typeof field) {
+    this._distinctDoc = field;
+  }
+
+  if (Query.canMerge(criteria)) {
+    this.merge(criteria);
+  }
+
+  return this;
+};
+
+/**
+ * Executes a `distinct` Query
+ * @returns the results
+ */
+Query.prototype._distinct = async function _distinct() {
+  if (!this._distinctDoc) {
+    throw new Error('No value for `distinct` has been declared');
+  }
+
+  const conds = this._conditions,
+      options = this._optionsForExec();
+
+  debug('distinct', this._collection.collectionName, conds, options);
+
+  return this._collection.distinct(this._distinctDoc, conds, options);
+};
+
+/**
+ * Declare and/or execute this query as an `updateMany()` operation. This function will update _all_ documents that match
+ * `criteria`, rather than just the first one.
+ *
+ * _All paths passed that are not $atomic operations will become $set ops._
+ *
+ * #### Example:
+ *
+ *     // Update every document whose `title` contains 'test'
+ *     mquery().updateMany({ title: /test/ }, { year: 2017 })
+ *
+ * @param {Object} [criteria]
+ * @param {Object} [doc] the update command
+ * @param {Object} [options]
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.updateMany = function updateMany(criteria, doc, options) {
+  if (arguments.length === 1) {
+    doc = criteria;
+    criteria = options = undefined;
+  }
+
+  return _update(this, 'updateMany', criteria, doc, options);
+};
+
+/**
+ * Executes a `updateMany` Query
+ * @returns the results
+ */
+Query.prototype._updateMany = async function() {
+  return _updateExec(this, 'updateMany');
+};
+
+/**
+ * Declare and/or execute this query as an `updateOne()` operation. This function will _always_ update just one document,
+ * regardless of the `multi` option.
+ *
+ * _All paths passed that are not $atomic operations will become $set ops._
+ *
+ * #### Example:
+ *
+ *     // Update the first document whose `title` contains 'test'
+ *     mquery().updateMany({ title: /test/ }, { year: 2017 })
+ *
+ * @param {Object} [criteria]
+ * @param {Object} [doc] the update command
+ * @param {Object} [options]
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.updateOne = function updateOne(criteria, doc, options) {
+  if (arguments.length === 1) {
+    doc = criteria;
+    criteria = options = undefined;
+  }
+
+  return _update(this, 'updateOne', criteria, doc, options);
+};
+
+/**
+ * Executes a `updateOne` Query
+ * @returns the results
+ */
+Query.prototype._updateOne = async function() {
+  return _updateExec(this, 'updateOne');
+};
+
+/**
+ * Declare and/or execute this query as an `replaceOne()` operation. Similar
+ * to `updateOne()`, except `replaceOne()` is not allowed to use atomic
+ * modifiers (`$set`, `$push`, etc.). Calling `replaceOne()` will always
+ * replace the existing doc.
+ *
+ * #### Example:
+ *
+ *     // Replace the document with `_id` 1 with `{ _id: 1, year: 2017 }`
+ *     mquery().replaceOne({ _id: 1 }, { year: 2017 })
+ *
+ * @param {Object} [criteria]
+ * @param {Object} [doc] the update command
+ * @param {Object} [options]
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.replaceOne = function replaceOne(criteria, doc, options) {
+  if (arguments.length === 1) {
+    doc = criteria;
+    criteria = options = undefined;
+  }
+
+  this.setOptions({ overwrite: true });
+  return _update(this, 'replaceOne', criteria, doc, options);
+};
+
+/**
+ * Executes a `replaceOne` Query
+ * @returns the results
+ */
+Query.prototype._replaceOne = async function() {
+  return _updateExec(this, 'replaceOne');
+};
+
+/*!
+ * Internal helper for updateMany, updateOne
+ */
+
+function _update(query, op, criteria, doc, options) {
+  query.op = op;
+
+  if (Query.canMerge(criteria)) {
+    query.merge(criteria);
+  }
+
+  if (doc) {
+    query._mergeUpdate(doc);
+  }
+
+  if (utils.isObject(options)) {
+    // { overwrite: true }
+    query.setOptions(options);
+  }
+
+  return query;
+}
+
+/**
+ * Helper for de-duplicating "update*" functions
+ * @param {Query} query The Query Object (replacement for "this")
+ * @param {String} op The Operation to be done
+ * @returns the results
+ */
+async function _updateExec(query, op) {
+  const options = query._optionsForExec();
+
+  const criteria = query._conditions;
+  const doc = query._updateForExec();
+
+  debug('update', query._collection.collectionName, criteria, doc, options);
+
+  return query._collection[op](criteria, doc, options);
+}
+
+/**
+ * Declare and/or execute this query as a `deleteOne()` operation.
+ *
+ * #### Example:
+ *
+ *     await mquery(collection).deleteOne({ artist: 'Anne Murray' })
+ *
+ * @param {Object|Query} [criteria] mongodb selector
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.deleteOne = function(criteria) {
+  this.op = 'deleteOne';
+
+  if (Query.canMerge(criteria)) {
+    this.merge(criteria);
+  }
+
+  return this;
+};
+
+/**
+ * Executes a `deleteOne` Query
+ * @returns the results
+ */
+Query.prototype._deleteOne = async function() {
+  const options = this._optionsForExec();
+  delete options.justOne;
+
+  const conds = this._conditions;
+
+  debug('deleteOne', this._collection.collectionName, conds, options);
+
+  return this._collection.deleteOne(conds, options);
+};
+
+/**
+ * Declare and/or execute this query as a `deleteMany()` operation. Always deletes
+ * _every_ document that matches `criteria`.
+ *
+ * #### Example:
+ *
+ *     await mquery(collection).deleteMany({ artist: 'Anne Murray' })
+ *
+ * @param {Object|Query} [criteria] mongodb selector
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.deleteMany = function(criteria) {
+  this.op = 'deleteMany';
+
+  if (Query.canMerge(criteria)) {
+    this.merge(criteria);
+  }
+
+  return this;
+};
+
+/**
+ * Executes a `deleteMany` Query
+ * @returns the results
+ */
+Query.prototype._deleteMany = async function() {
+  const options = this._optionsForExec();
+  delete options.justOne;
+
+  const conds = this._conditions;
+
+  debug('deleteOne', this._collection.collectionName, conds, options);
+
+  return this._collection.deleteMany(conds, options);
+};
+
+/**
+ * Issues a mongodb [findAndModify](http://www.mongodb.org/display/DOCS/findAndModify+Command) update command.
+ *
+ * Finds a matching document, updates it according to the `update` arg, passing any `options`, and returns the found document (if any).
+ *
+ * #### Available options
+ *
+ * - `new`: bool - true to return the modified document rather than the original. defaults to true
+ * - `upsert`: bool - creates the object if it doesn't exist. defaults to false.
+ * - `sort`: if multiple docs are found by the conditions, sets the sort order to choose which doc to update
+ *
+ * #### Examples:
+ *
+ *     await query.findOneAndUpdate(conditions, update, options) // executes
+ *     query.findOneAndUpdate(conditions, update, options)  // returns Query
+ *     await query.findOneAndUpdate(conditions, update) // executes
+ *     query.findOneAndUpdate(conditions, update)           // returns Query
+ *     await query.findOneAndUpdate(update)             // returns Query
+ *     query.findOneAndUpdate(update)                       // returns Query
+ *     await query.findOneAndUpdate()                     // executes
+ *     query.findOneAndUpdate()                             // returns Query
+ *
+ * @param {Object|Query} [query]
+ * @param {Object} [doc]
+ * @param {Object} [options]
+ * @see mongodb http://www.mongodb.org/display/DOCS/findAndModify+Command
+ * @return {Query} this
+ * @api public
+ */
+
+Query.prototype.findOneAndUpdate = function(criteria, doc, options) {
+  this.op = 'findOneAndUpdate';
+  this._validate();
+
+  if (arguments.length === 1) {
+    doc = criteria;
+    criteria = options = undefined;
+  }
+
+  if (Query.canMerge(criteria)) {
+    this.merge(criteria);
+  }
+
+  // apply doc
+  if (doc) {
+    this._mergeUpdate(doc);
+  }
+
+  options && this.setOptions(options);
+
+  return this;
+};
+
+/**
+ * Executes a `findOneAndUpdate` Query
+ * @returns the results
+ */
+Query.prototype._findOneAndUpdate = async function() {
+  const conds = this._conditions;
+  const update = this._updateForExec();
+  const options = this._optionsForExec();
+
+  return this._collection.findOneAndUpdate(conds, update, options);
+};
+
+/**
+ * Issues a mongodb [findAndModify](http://www.mongodb.org/display/DOCS/findAndModify+Command) remove command.
+ *
+ * Finds a matching document, removes it, returning the found document (if any).
+ *
+ * #### Available options
+ *
+ * - `sort`: if multiple docs are found by the conditions, sets the sort order to choose which doc to update
+ *
+ * #### Examples:
+ *
+ *     await A.where().findOneAndRemove(conditions, options) // executes
+ *     A.where().findOneAndRemove(conditions, options)  // return Query
+ *     await A.where().findOneAndRemove(conditions) // executes
+ *     A.where().findOneAndRemove(conditions) // returns Query
+ *     await A.where().findOneAndRemove()   // executes
+ *     A.where().findOneAndRemove()           // returns Query
+ *     A.where().findOneAndDelete()           // alias of .findOneAndRemove()
+ *
+ * @param {Object} [conditions]
+ * @param {Object} [options]
+ * @return {Query} this
+ * @see mongodb http://www.mongodb.org/display/DOCS/findAndModify+Command
+ * @api public
+ */
+
+Query.prototype.findOneAndRemove = Query.prototype.findOneAndDelete = function(conditions, options) {
+  this.op = 'findOneAndRemove';
+  this._validate();
+
+  // apply conditions
+  if (Query.canMerge(conditions)) {
+    this.merge(conditions);
+  }
+
+  // apply options
+  options && this.setOptions(options);
+
+  return this;
+};
+
+/**
+ * Executes a `findOneAndRemove` Query
+ * @returns the results
+ */
+Query.prototype._findOneAndRemove = async function() {
+  const options = this._optionsForExec();
+  const conds = this._conditions;
+
+  return this._collection.findOneAndDelete(conds, options);
+};
+
+/**
+ * Add trace function that gets called when the query is executed.
+ * The function will be called with (method, queryInfo, query) and
+ * should return a callback function which will be called
+ * with (err, result, millis) when the query is complete.
+ *
+ * queryInfo is an object containing: {
+ *   collectionName: <name of the collection>,
+ *   conditions: <query criteria>,
+ *   options: <comment, fields, readPreference, etc>,
+ *   doc: [document to update, if applicable]
+ * }
+ *
+ * NOTE: Does not trace stream queries.
+ *
+ * @param {Function} traceFunction
+ * @return {Query} this
+ * @api public
+ */
+Query.prototype.setTraceFunction = function(traceFunction) {
+  this._traceFunction = traceFunction;
+  return this;
+};
+
+/**
+ * Executes the query
+ *
+ * #### Examples:
+ *
+ *     query.exec();
+ *     await query.exec();
+ *     query.exec('update');
+ *     await query.exec('find');
+ *
+ * @param {String|Function} [operation]
+ * @api public
+ */
+
+Query.prototype.exec = async function exec(op) {
+  if (typeof op === 'string') {
+    this.op = op;
+  }
+
+  assert.ok(this.op, 'Missing query type: (find, etc)');
+
+  const fnName = '_' + this.op;
+
+  // better error, because default would list it as "this[fnName] is not a function"
+  if (typeof this[fnName] !== 'function') {
+    throw new TypeError(`this[${fnName}] is not a function`);
+  }
+
+  return this[fnName]();
+};
+
+/**
+ * Executes the query returning a `Promise` which will be
+ * resolved with either the doc(s) or rejected with the error.
+ *
+ * @param {Function} [resolve]
+ * @param {Function} [reject]
+ * @return {Promise}
+ * @api public
+ */
+
+Query.prototype.then = async function(res, rej) {
+  return this.exec().then(res, rej);
+};
+
+/**
+ * Returns a cursor for the given `find` query.
+ *
+ * @throws Error if operation is not a find
+ * @returns {Cursor} MongoDB driver cursor
+ */
+
+Query.prototype.cursor = function() {
+  if ('find' != this.op)
+    throw new Error('cursor() is only available for find');
+
+  const conds = this._conditions;
+
+  const options = this._optionsForExec();
+  if (this.$useProjection) {
+    options.projection = this._fieldsForExec();
+  } else {
+    options.fields = this._fieldsForExec();
+  }
+
+  debug('cursor', this._collection.collectionName, conds, options);
+
+  return this._collection.findCursor(conds, options);
+};
+
+/**
+ * Determines if field selection has been made.
+ *
+ * @return {Boolean}
+ * @api public
+ */
+
+Query.prototype.selected = function selected() {
+  return !!(this._fields && Object.keys(this._fields).length > 0);
+};
+
+/**
+ * Determines if inclusive field selection has been made.
+ *
+ *     query.selectedInclusively() // false
+ *     query.select('name')
+ *     query.selectedInclusively() // true
+ *     query.selectedExlusively() // false
+ *
+ * @returns {Boolean}
+ */
+
+Query.prototype.selectedInclusively = function selectedInclusively() {
+  if (!this._fields) return false;
+
+  const keys = Object.keys(this._fields);
+  if (0 === keys.length) return false;
+
+  for (let i = 0; i < keys.length; ++i) {
+    const key = keys[i];
+    if (0 === this._fields[key]) return false;
+    if (this._fields[key] &&
+        typeof this._fields[key] === 'object' &&
+        this._fields[key].$meta) {
+      return false;
+    }
+  }
+
+  return true;
+};
+
+/**
+ * Determines if exclusive field selection has been made.
+ *
+ *     query.selectedExlusively() // false
+ *     query.select('-name')
+ *     query.selectedExlusively() // true
+ *     query.selectedInclusively() // false
+ *
+ * @returns {Boolean}
+ */
+
+Query.prototype.selectedExclusively = function selectedExclusively() {
+  if (!this._fields) return false;
+
+  const keys = Object.keys(this._fields);
+  if (0 === keys.length) return false;
+
+  for (let i = 0; i < keys.length; ++i) {
+    const key = keys[i];
+    if (0 === this._fields[key]) return true;
+  }
+
+  return false;
+};
+
+/**
+ * Merges `doc` with the current update object.
+ *
+ * @param {Object} doc
+ */
+
+Query.prototype._mergeUpdate = function(doc) {
+  if (!this._updateDoc) this._updateDoc = {};
+  if (doc instanceof Query) {
+    if (doc._updateDoc) {
+      utils.mergeClone(this._updateDoc, doc._updateDoc);
+    }
+  } else {
+    utils.mergeClone(this._updateDoc, doc);
+  }
+};
+
+/**
+ * Returns default options.
+ *
+ * @return {Object}
+ * @api private
+ */
+
+Query.prototype._optionsForExec = function() {
+  const options = utils.clone(this.options);
+  return options;
+};
+
+/**
+ * Returns fields selection for this query.
+ *
+ * @return {Object}
+ * @api private
+ */
+
+Query.prototype._fieldsForExec = function() {
+  return utils.clone(this._fields);
+};
+
+/**
+ * Return an update document with corrected $set operations.
+ *
+ * @api private
+ */
+
+Query.prototype._updateForExec = function() {
+  const update = utils.clone(this._updateDoc);
+  const ops = utils.keys(update);
+  const ret = {};
+
+  for (const op of ops) {
+    if (this.options.overwrite) {
+      ret[op] = update[op];
+      continue;
+    }
+
+    if ('$' !== op[0]) {
+      // fix up $set sugar
+      if (!ret.$set) {
+        if (update.$set) {
+          ret.$set = update.$set;
+        } else {
+          ret.$set = {};
+        }
+      }
+      ret.$set[op] = update[op];
+      if (!~ops.indexOf('$set')) ops.push('$set');
+    } else if ('$set' === op) {
+      if (!ret.$set) {
+        ret[op] = update[op];
+      }
+    } else {
+      ret[op] = update[op];
+    }
+  }
+
+  this._compiledUpdate = ret;
+  return ret;
+};
+
+/**
+ * Make sure _path is set.
+ *
+ * @parmam {String} method
+ */
+
+Query.prototype._ensurePath = function(method) {
+  if (!this._path) {
+    const msg = method + '() must be used after where() '
+                     + 'when called with these arguments';
+    throw new Error(msg);
+  }
+};
+
+/*!
+ * Permissions
+ */
+
+Query.permissions = require('./permissions');
+
+Query._isPermitted = function(a, b) {
+  const denied = Query.permissions[b];
+  if (!denied) return true;
+  return true !== denied[a];
+};
+
+Query.prototype._validate = function(action) {
+  let fail;
+  let validator;
+
+  if (undefined === action) {
+
+    validator = Query.permissions[this.op];
+    if ('function' != typeof validator) return true;
+
+    fail = validator(this);
+
+  } else if (!Query._isPermitted(action, this.op)) {
+    fail = action;
+  }
+
+  if (fail) {
+    throw new Error(fail + ' cannot be used with ' + this.op);
+  }
+};
+
+/**
+ * Determines if `conds` can be merged using `mquery().merge()`
+ *
+ * @param {Object} conds
+ * @return {Boolean}
+ */
+
+Query.canMerge = function(conds) {
+  return conds instanceof Query || utils.isObject(conds);
+};
+
+/**
+ * Set a trace function that will get called whenever a
+ * query is executed.
+ *
+ * See `setTraceFunction()` for details.
+ *
+ * @param {Object} conds
+ * @return {Boolean}
+ */
+Query.setGlobalTraceFunction = function(traceFunction) {
+  Query.traceFunction = traceFunction;
+};
+
+/*!
+ * Exports.
+ */
+
+Query.utils = utils;
+Query.env = require('./env');
+Query.Collection = require('./collection');
+Query.BaseCollection = require('./collection/collection');
+module.exports = exports = Query;
+
+// TODO
+// test utils
diff --git a/backend/node_modules/mquery/lib/permissions.js b/backend/node_modules/mquery/lib/permissions.js
new file mode 100644
index 0000000..97d2c73
--- /dev/null
+++ b/backend/node_modules/mquery/lib/permissions.js
@@ -0,0 +1,78 @@
+'use strict';
+
+const denied = exports;
+
+denied.distinct = function(self) {
+  if (self._fields && Object.keys(self._fields).length > 0) {
+    return 'field selection and slice';
+  }
+
+  const keys = Object.keys(denied.distinct);
+  let err;
+
+  keys.every(function(option) {
+    if (self.options[option]) {
+      err = option;
+      return false;
+    }
+    return true;
+  });
+
+  return err;
+};
+denied.distinct.select =
+denied.distinct.slice =
+denied.distinct.sort =
+denied.distinct.limit =
+denied.distinct.skip =
+denied.distinct.batchSize =
+denied.distinct.hint =
+denied.distinct.tailable = true;
+
+
+// aggregation integration
+
+
+denied.findOneAndUpdate =
+denied.findOneAndRemove = function(self) {
+  const keys = Object.keys(denied.findOneAndUpdate);
+  let err;
+
+  keys.every(function(option) {
+    if (self.options[option]) {
+      err = option;
+      return false;
+    }
+    return true;
+  });
+
+  return err;
+};
+denied.findOneAndUpdate.limit =
+denied.findOneAndUpdate.skip =
+denied.findOneAndUpdate.batchSize =
+denied.findOneAndUpdate.tailable = true;
+
+
+denied.count = function(self) {
+  if (self._fields && Object.keys(self._fields).length > 0) {
+    return 'field selection and slice';
+  }
+
+  const keys = Object.keys(denied.count);
+  let err;
+
+  keys.every(function(option) {
+    if (self.options[option]) {
+      err = option;
+      return false;
+    }
+    return true;
+  });
+
+  return err;
+};
+
+denied.count.slice =
+denied.count.batchSize =
+denied.count.tailable = true;
diff --git a/backend/node_modules/mquery/lib/utils.js b/backend/node_modules/mquery/lib/utils.js
new file mode 100644
index 0000000..dbaec25
--- /dev/null
+++ b/backend/node_modules/mquery/lib/utils.js
@@ -0,0 +1,297 @@
+'use strict';
+
+/*!
+ * Module dependencies.
+ */
+
+const specialProperties = ['__proto__', 'constructor', 'prototype'];
+
+/**
+ * Clones objects
+ *
+ * @param {Object} obj the object to clone
+ * @param {Object} options
+ * @return {Object} the cloned object
+ * @api private
+ */
+
+const clone = exports.clone = function clone(obj, options) {
+  if (obj === undefined || obj === null)
+    return obj;
+
+  if (Array.isArray(obj))
+    return exports.cloneArray(obj, options);
+
+  if (obj.constructor) {
+    if (/ObjectI[dD]$/.test(obj.constructor.name)) {
+      return 'function' == typeof obj.clone
+        ? obj.clone()
+        : new obj.constructor(obj.id);
+    }
+
+    if (obj.constructor.name === 'ReadPreference') {
+      return new obj.constructor(obj.mode, clone(obj.tags, options));
+    }
+
+    if ('Binary' == obj._bsontype && obj.buffer && obj.value) {
+      return 'function' == typeof obj.clone
+        ? obj.clone()
+        : new obj.constructor(obj.value(true), obj.sub_type);
+    }
+
+    if ('Date' === obj.constructor.name || 'Function' === obj.constructor.name)
+      return new obj.constructor(+obj);
+
+    if ('RegExp' === obj.constructor.name)
+      return new RegExp(obj);
+
+    if ('Buffer' === obj.constructor.name)
+      return Buffer.from(obj);
+  }
+
+  if (isObject(obj))
+    return exports.cloneObject(obj, options);
+
+  if (obj.valueOf)
+    return obj.valueOf();
+};
+
+/*!
+ * ignore
+ */
+
+exports.cloneObject = function cloneObject(obj, options) {
+  const minimize = options && options.minimize,
+      ret = {},
+      keys = Object.keys(obj),
+      len = keys.length;
+  let hasKeys = false,
+      val,
+      k = '',
+      i = 0;
+
+  for (i = 0; i < len; ++i) {
+    k = keys[i];
+    // Not technically prototype pollution because this wouldn't merge properties
+    // onto `Object.prototype`, but avoid properties like __proto__ as a precaution.
+    if (specialProperties.indexOf(k) !== -1) {
+      continue;
+    }
+
+    val = clone(obj[k], options);
+
+    if (!minimize || ('undefined' !== typeof val)) {
+      hasKeys || (hasKeys = true);
+      ret[k] = val;
+    }
+  }
+
+  return minimize
+    ? hasKeys && ret
+    : ret;
+};
+
+exports.cloneArray = function cloneArray(arr, options) {
+  const ret = [],
+      l = arr.length;
+  let i = 0;
+  for (; i < l; i++)
+    ret.push(clone(arr[i], options));
+  return ret;
+};
+
+/**
+ * Merges `from` into `to` without overwriting existing properties.
+ *
+ * @param {Object} to
+ * @param {Object} from
+ * @api private
+ */
+
+exports.merge = function merge(to, from) {
+  const keys = Object.keys(from);
+
+  for (const key of keys) {
+    if (specialProperties.indexOf(key) !== -1) {
+      continue;
+    }
+    if ('undefined' === typeof to[key]) {
+      to[key] = from[key];
+    } else {
+      if (exports.isObject(from[key])) {
+        merge(to[key], from[key]);
+      } else {
+        to[key] = from[key];
+      }
+    }
+  }
+};
+
+/**
+ * Same as merge but clones the assigned values.
+ *
+ * @param {Object} to
+ * @param {Object} from
+ * @api private
+ */
+
+exports.mergeClone = function mergeClone(to, from) {
+  const keys = Object.keys(from);
+
+  for (const key of keys) {
+    if (specialProperties.indexOf(key) !== -1) {
+      continue;
+    }
+    if ('undefined' === typeof to[key]) {
+      to[key] = clone(from[key]);
+    } else {
+      if (exports.isObject(from[key])) {
+        mergeClone(to[key], from[key]);
+      } else {
+        to[key] = clone(from[key]);
+      }
+    }
+  }
+};
+
+/**
+ * Read pref helper (mongo 2.2 drivers support this)
+ *
+ * Allows using aliases instead of full preference names:
+ *
+ *     p   primary
+ *     pp  primaryPreferred
+ *     s   secondary
+ *     sp  secondaryPreferred
+ *     n   nearest
+ *
+ * @param {String} pref
+ */
+
+exports.readPref = function readPref(pref) {
+  switch (pref) {
+    case 'p':
+      pref = 'primary';
+      break;
+    case 'pp':
+      pref = 'primaryPreferred';
+      break;
+    case 's':
+      pref = 'secondary';
+      break;
+    case 'sp':
+      pref = 'secondaryPreferred';
+      break;
+    case 'n':
+      pref = 'nearest';
+      break;
+  }
+
+  return pref;
+};
+
+
+/**
+ * Read Concern helper (mongo 3.2 drivers support this)
+ *
+ * Allows using string to specify read concern level:
+ *
+ *     local          3.2+
+ *     available      3.6+
+ *     majority       3.2+
+ *     linearizable   3.4+
+ *     snapshot       4.0+
+ *
+ * @param {String|Object} concern
+ */
+
+exports.readConcern = function readConcern(concern) {
+  if ('string' === typeof concern) {
+    switch (concern) {
+      case 'l':
+        concern = 'local';
+        break;
+      case 'a':
+        concern = 'available';
+        break;
+      case 'm':
+        concern = 'majority';
+        break;
+      case 'lz':
+        concern = 'linearizable';
+        break;
+      case 's':
+        concern = 'snapshot';
+        break;
+    }
+    concern = { level: concern };
+  }
+  return concern;
+};
+
+/**
+ * Object.prototype.toString.call helper
+ */
+
+const _toString = Object.prototype.toString;
+exports.toString = function(arg) {
+  return _toString.call(arg);
+};
+
+/**
+ * Determines if `arg` is an object.
+ *
+ * @param {Object|Array|String|Function|RegExp|any} arg
+ * @return {Boolean}
+ */
+
+const isObject = exports.isObject = function(arg) {
+  return '[object Object]' == exports.toString(arg);
+};
+
+/**
+ * Object.keys helper
+ */
+
+exports.keys = Object.keys;
+
+/**
+ * Basic Object.create polyfill.
+ * Only one argument is supported.
+ *
+ * Based on https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Object/create
+ */
+
+exports.create = 'function' == typeof Object.create
+  ? Object.create
+  : create;
+
+function create(proto) {
+  if (arguments.length > 1) {
+    throw new Error('Adding properties is not supported');
+  }
+
+  function F() { }
+  F.prototype = proto;
+  return new F;
+}
+
+/**
+ * inheritance
+ */
+
+exports.inherits = function(ctor, superCtor) {
+  ctor.prototype = exports.create(superCtor.prototype);
+  ctor.prototype.constructor = ctor;
+};
+
+/**
+ * Check if this object is an arguments object
+ *
+ * @param {Any} v
+ * @return {Boolean}
+ */
+
+exports.isArgumentsObject = function(v) {
+  return Object.prototype.toString.call(v) === '[object Arguments]';
+};
diff --git a/backend/node_modules/mquery/node_modules/debug/LICENSE b/backend/node_modules/mquery/node_modules/debug/LICENSE
new file mode 100644
index 0000000..1a9820e
--- /dev/null
+++ b/backend/node_modules/mquery/node_modules/debug/LICENSE
@@ -0,0 +1,20 @@
+(The MIT License)
+
+Copyright (c) 2014-2017 TJ Holowaychuk <tj@vision-media.ca>
+Copyright (c) 2018-2021 Josh Junon
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+and associated documentation files (the 'Software'), to deal in the Software without restriction,
+including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial
+portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
+LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
diff --git a/backend/node_modules/mquery/node_modules/debug/README.md b/backend/node_modules/mquery/node_modules/debug/README.md
new file mode 100644
index 0000000..9ebdfbf
--- /dev/null
+++ b/backend/node_modules/mquery/node_modules/debug/README.md
@@ -0,0 +1,481 @@
+# debug
+[![OpenCollective](https://opencollective.com/debug/backers/badge.svg)](#backers)
+[![OpenCollective](https://opencollective.com/debug/sponsors/badge.svg)](#sponsors)
+
+<img width="647" src="https://user-images.githubusercontent.com/71256/29091486-fa38524c-7c37-11e7-895f-e7ec8e1039b6.png">
+
+A tiny JavaScript debugging utility modelled after Node.js core's debugging
+technique. Works in Node.js and web browsers.
+
+## Installation
+
+```bash
+$ npm install debug
+```
+
+## Usage
+
+`debug` exposes a function; simply pass this function the name of your module, and it will return a decorated version of `console.error` for you to pass debug statements to. This will allow you to toggle the debug output for different parts of your module as well as the module as a whole.
+
+Example [_app.js_](./examples/node/app.js):
+
+```js
+var debug = require('debug')('http')
+  , http = require('http')
+  , name = 'My App';
+
+// fake app
+
+debug('booting %o', name);
+
+http.createServer(function(req, res){
+  debug(req.method + ' ' + req.url);
+  res.end('hello\n');
+}).listen(3000, function(){
+  debug('listening');
+});
+
+// fake worker of some kind
+
+require('./worker');
+```
+
+Example [_worker.js_](./examples/node/worker.js):
+
+```js
+var a = require('debug')('worker:a')
+  , b = require('debug')('worker:b');
+
+function work() {
+  a('doing lots of uninteresting work');
+  setTimeout(work, Math.random() * 1000);
+}
+
+work();
+
+function workb() {
+  b('doing some work');
+  setTimeout(workb, Math.random() * 2000);
+}
+
+workb();
+```
+
+The `DEBUG` environment variable is then used to enable these based on space or
+comma-delimited names.
+
+Here are some examples:
+
+<img width="647" alt="screen shot 2017-08-08 at 12 53 04 pm" src="https://user-images.githubusercontent.com/71256/29091703-a6302cdc-7c38-11e7-8304-7c0b3bc600cd.png">
+<img width="647" alt="screen shot 2017-08-08 at 12 53 38 pm" src="https://user-images.githubusercontent.com/71256/29091700-a62a6888-7c38-11e7-800b-db911291ca2b.png">
+<img width="647" alt="screen shot 2017-08-08 at 12 53 25 pm" src="https://user-images.githubusercontent.com/71256/29091701-a62ea114-7c38-11e7-826a-2692bedca740.png">
+
+#### Windows command prompt notes
+
+##### CMD
+
+On Windows the environment variable is set using the `set` command.
+
+```cmd
+set DEBUG=*,-not_this
+```
+
+Example:
+
+```cmd
+set DEBUG=* & node app.js
+```
+
+##### PowerShell (VS Code default)
+
+PowerShell uses different syntax to set environment variables.
+
+```cmd
+$env:DEBUG = "*,-not_this"
+```
+
+Example:
+
+```cmd
+$env:DEBUG='app';node app.js
+```
+
+Then, run the program to be debugged as usual.
+
+npm script example:
+```js
+  "windowsDebug": "@powershell -Command $env:DEBUG='*';node app.js",
+```
+
+## Namespace Colors
+
+Every debug instance has a color generated for it based on its namespace name.
+This helps when visually parsing the debug output to identify which debug instance
+a debug line belongs to.
+
+#### Node.js
+
+In Node.js, colors are enabled when stderr is a TTY. You also _should_ install
+the [`supports-color`](https://npmjs.org/supports-color) module alongside debug,
+otherwise debug will only use a small handful of basic colors.
+
+<img width="521" src="https://user-images.githubusercontent.com/71256/29092181-47f6a9e6-7c3a-11e7-9a14-1928d8a711cd.png">
+
+#### Web Browser
+
+Colors are also enabled on "Web Inspectors" that understand the `%c` formatting
+option. These are WebKit web inspectors, Firefox ([since version
+31](https://hacks.mozilla.org/2014/05/editable-box-model-multiple-selection-sublime-text-keys-much-more-firefox-developer-tools-episode-31/))
+and the Firebug plugin for Firefox (any version).
+
+<img width="524" src="https://user-images.githubusercontent.com/71256/29092033-b65f9f2e-7c39-11e7-8e32-f6f0d8e865c1.png">
+
+
+## Millisecond diff
+
+When actively developing an application it can be useful to see when the time spent between one `debug()` call and the next. Suppose for example you invoke `debug()` before requesting a resource, and after as well, the "+NNNms" will show you how much time was spent between calls.
+
+<img width="647" src="https://user-images.githubusercontent.com/71256/29091486-fa38524c-7c37-11e7-895f-e7ec8e1039b6.png">
+
+When stdout is not a TTY, `Date#toISOString()` is used, making it more useful for logging the debug information as shown below:
+
+<img width="647" src="https://user-images.githubusercontent.com/71256/29091956-6bd78372-7c39-11e7-8c55-c948396d6edd.png">
+
+
+## Conventions
+
+If you're using this in one or more of your libraries, you _should_ use the name of your library so that developers may toggle debugging as desired without guessing names. If you have more than one debuggers you _should_ prefix them with your library name and use ":" to separate features. For example "bodyParser" from Connect would then be "connect:bodyParser".  If you append a "*" to the end of your name, it will always be enabled regardless of the setting of the DEBUG environment variable.  You can then use it for normal output as well as debug output.
+
+## Wildcards
+
+The `*` character may be used as a wildcard. Suppose for example your library has
+debuggers named "connect:bodyParser", "connect:compress", "connect:session",
+instead of listing all three with
+`DEBUG=connect:bodyParser,connect:compress,connect:session`, you may simply do
+`DEBUG=connect:*`, or to run everything using this module simply use `DEBUG=*`.
+
+You can also exclude specific debuggers by prefixing them with a "-" character.
+For example, `DEBUG=*,-connect:*` would include all debuggers except those
+starting with "connect:".
+
+## Environment Variables
+
+When running through Node.js, you can set a few environment variables that will
+change the behavior of the debug logging:
+
+| Name      | Purpose                                         |
+|-----------|-------------------------------------------------|
+| `DEBUG`   | Enables/disables specific debugging namespaces. |
+| `DEBUG_HIDE_DATE` | Hide date from debug output (non-TTY).  |
+| `DEBUG_COLORS`| Whether or not to use colors in the debug output. |
+| `DEBUG_DEPTH` | Object inspection depth.                    |
+| `DEBUG_SHOW_HIDDEN` | Shows hidden properties on inspected objects. |
+
+
+__Note:__ The environment variables beginning with `DEBUG_` end up being
+converted into an Options object that gets used with `%o`/`%O` formatters.
+See the Node.js documentation for
+[`util.inspect()`](https://nodejs.org/api/util.html#util_util_inspect_object_options)
+for the complete list.
+
+## Formatters
+
+Debug uses [printf-style](https://wikipedia.org/wiki/Printf_format_string) formatting.
+Below are the officially supported formatters:
+
+| Formatter | Representation |
+|-----------|----------------|
+| `%O`      | Pretty-print an Object on multiple lines. |
+| `%o`      | Pretty-print an Object all on a single line. |
+| `%s`      | String. |
+| `%d`      | Number (both integer and float). |
+| `%j`      | JSON. Replaced with the string '[Circular]' if the argument contains circular references. |
+| `%%`      | Single percent sign ('%'). This does not consume an argument. |
+
+
+### Custom formatters
+
+You can add custom formatters by extending the `debug.formatters` object.
+For example, if you wanted to add support for rendering a Buffer as hex with
+`%h`, you could do something like:
+
+```js
+const createDebug = require('debug')
+createDebug.formatters.h = (v) => {
+  return v.toString('hex')
+}
+
+// …elsewhere
+const debug = createDebug('foo')
+debug('this is hex: %h', new Buffer('hello world'))
+//   foo this is hex: 68656c6c6f20776f726c6421 +0ms
+```
+
+
+## Browser Support
+
+You can build a browser-ready script using [browserify](https://github.com/substack/node-browserify),
+or just use the [browserify-as-a-service](https://wzrd.in/) [build](https://wzrd.in/standalone/debug@latest),
+if you don't want to build it yourself.
+
+Debug's enable state is currently persisted by `localStorage`.
+Consider the situation shown below where you have `worker:a` and `worker:b`,
+and wish to debug both. You can enable this using `localStorage.debug`:
+
+```js
+localStorage.debug = 'worker:*'
+```
+
+And then refresh the page.
+
+```js
+a = debug('worker:a');
+b = debug('worker:b');
+
+setInterval(function(){
+  a('doing some work');
+}, 1000);
+
+setInterval(function(){
+  b('doing some work');
+}, 1200);
+```
+
+In Chromium-based web browsers (e.g. Brave, Chrome, and Electron), the JavaScript console will—by default—only show messages logged by `debug` if the "Verbose" log level is _enabled_.
+
+<img width="647" src="https://user-images.githubusercontent.com/7143133/152083257-29034707-c42c-4959-8add-3cee850e6fcf.png">
+
+## Output streams
+
+  By default `debug` will log to stderr, however this can be configured per-namespace by overriding the `log` method:
+
+Example [_stdout.js_](./examples/node/stdout.js):
+
+```js
+var debug = require('debug');
+var error = debug('app:error');
+
+// by default stderr is used
+error('goes to stderr!');
+
+var log = debug('app:log');
+// set this namespace to log via console.log
+log.log = console.log.bind(console); // don't forget to bind to console!
+log('goes to stdout');
+error('still goes to stderr!');
+
+// set all output to go via console.info
+// overrides all per-namespace log settings
+debug.log = console.info.bind(console);
+error('now goes to stdout via console.info');
+log('still goes to stdout, but via console.info now');
+```
+
+## Extend
+You can simply extend debugger 
+```js
+const log = require('debug')('auth');
+
+//creates new debug instance with extended namespace
+const logSign = log.extend('sign');
+const logLogin = log.extend('login');
+
+log('hello'); // auth hello
+logSign('hello'); //auth:sign hello
+logLogin('hello'); //auth:login hello
+```
+
+## Set dynamically
+
+You can also enable debug dynamically by calling the `enable()` method :
+
+```js
+let debug = require('debug');
+
+console.log(1, debug.enabled('test'));
+
+debug.enable('test');
+console.log(2, debug.enabled('test'));
+
+debug.disable();
+console.log(3, debug.enabled('test'));
+
+```
+
+print :   
+```
+1 false
+2 true
+3 false
+```
+
+Usage :  
+`enable(namespaces)`  
+`namespaces` can include modes separated by a colon and wildcards.
+   
+Note that calling `enable()` completely overrides previously set DEBUG variable : 
+
+```
+$ DEBUG=foo node -e 'var dbg = require("debug"); dbg.enable("bar"); console.log(dbg.enabled("foo"))'
+=> false
+```
+
+`disable()`
+
+Will disable all namespaces. The functions returns the namespaces currently
+enabled (and skipped). This can be useful if you want to disable debugging
+temporarily without knowing what was enabled to begin with.
+
+For example:
+
+```js
+let debug = require('debug');
+debug.enable('foo:*,-foo:bar');
+let namespaces = debug.disable();
+debug.enable(namespaces);
+```
+
+Note: There is no guarantee that the string will be identical to the initial
+enable string, but semantically they will be identical.
+
+## Checking whether a debug target is enabled
+
+After you've created a debug instance, you can determine whether or not it is
+enabled by checking the `enabled` property:
+
+```javascript
+const debug = require('debug')('http');
+
+if (debug.enabled) {
+  // do stuff...
+}
+```
+
+You can also manually toggle this property to force the debug instance to be
+enabled or disabled.
+
+## Usage in child processes
+
+Due to the way `debug` detects if the output is a TTY or not, colors are not shown in child processes when `stderr` is piped. A solution is to pass the `DEBUG_COLORS=1` environment variable to the child process.  
+For example:
+
+```javascript
+worker = fork(WORKER_WRAP_PATH, [workerPath], {
+  stdio: [
+    /* stdin: */ 0,
+    /* stdout: */ 'pipe',
+    /* stderr: */ 'pipe',
+    'ipc',
+  ],
+  env: Object.assign({}, process.env, {
+    DEBUG_COLORS: 1 // without this settings, colors won't be shown
+  }),
+});
+
+worker.stderr.pipe(process.stderr, { end: false });
+```
+
+
+## Authors
+
+ - TJ Holowaychuk
+ - Nathan Rajlich
+ - Andrew Rhyne
+ - Josh Junon
+
+## Backers
+
+Support us with a monthly donation and help us continue our activities. [[Become a backer](https://opencollective.com/debug#backer)]
+
+<a href="https://opencollective.com/debug/backer/0/website" target="_blank"><img src="https://opencollective.com/debug/backer/0/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/1/website" target="_blank"><img src="https://opencollective.com/debug/backer/1/avatar.svg"></a>
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+<a href="https://opencollective.com/debug/backer/26/website" target="_blank"><img src="https://opencollective.com/debug/backer/26/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/27/website" target="_blank"><img src="https://opencollective.com/debug/backer/27/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/28/website" target="_blank"><img src="https://opencollective.com/debug/backer/28/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/29/website" target="_blank"><img src="https://opencollective.com/debug/backer/29/avatar.svg"></a>
+
+
+## Sponsors
+
+Become a sponsor and get your logo on our README on Github with a link to your site. [[Become a sponsor](https://opencollective.com/debug#sponsor)]
+
+<a href="https://opencollective.com/debug/sponsor/0/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/0/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/1/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/1/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/2/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/2/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/3/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/3/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/4/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/4/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/5/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/5/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/6/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/6/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/7/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/7/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/8/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/8/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/9/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/9/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/10/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/10/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/11/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/11/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/12/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/12/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/13/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/13/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/14/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/14/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/15/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/15/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/16/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/16/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/17/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/17/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/18/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/18/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/19/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/19/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/20/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/20/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/21/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/21/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/22/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/22/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/23/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/23/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/24/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/24/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/25/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/25/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/26/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/26/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/27/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/27/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/28/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/28/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/29/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/29/avatar.svg"></a>
+
+## License
+
+(The MIT License)
+
+Copyright (c) 2014-2017 TJ Holowaychuk &lt;tj@vision-media.ca&gt;
+Copyright (c) 2018-2021 Josh Junon
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/mquery/node_modules/debug/package.json b/backend/node_modules/mquery/node_modules/debug/package.json
new file mode 100644
index 0000000..60dfcf5
--- /dev/null
+++ b/backend/node_modules/mquery/node_modules/debug/package.json
@@ -0,0 +1,65 @@
+{
+  "name": "debug",
+  "version": "4.4.0",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/debug-js/debug.git"
+  },
+  "description": "Lightweight debugging utility for Node.js and the browser",
+  "keywords": [
+    "debug",
+    "log",
+    "debugger"
+  ],
+  "files": [
+    "src",
+    "LICENSE",
+    "README.md"
+  ],
+  "author": "Josh Junon (https://github.com/qix-)",
+  "contributors": [
+    "TJ Holowaychuk <tj@vision-media.ca>",
+    "Nathan Rajlich <nathan@tootallnate.net> (http://n8.io)",
+    "Andrew Rhyne <rhyneandrew@gmail.com>"
+  ],
+  "license": "MIT",
+  "scripts": {
+    "lint": "xo",
+    "test": "npm run test:node && npm run test:browser && npm run lint",
+    "test:node": "istanbul cover _mocha -- test.js test.node.js",
+    "test:browser": "karma start --single-run",
+    "test:coverage": "cat ./coverage/lcov.info | coveralls"
+  },
+  "dependencies": {
+    "ms": "^2.1.3"
+  },
+  "devDependencies": {
+    "brfs": "^2.0.1",
+    "browserify": "^16.2.3",
+    "coveralls": "^3.0.2",
+    "istanbul": "^0.4.5",
+    "karma": "^3.1.4",
+    "karma-browserify": "^6.0.0",
+    "karma-chrome-launcher": "^2.2.0",
+    "karma-mocha": "^1.3.0",
+    "mocha": "^5.2.0",
+    "mocha-lcov-reporter": "^1.2.0",
+    "sinon": "^14.0.0",
+    "xo": "^0.23.0"
+  },
+  "peerDependenciesMeta": {
+    "supports-color": {
+      "optional": true
+    }
+  },
+  "main": "./src/index.js",
+  "browser": "./src/browser.js",
+  "engines": {
+    "node": ">=6.0"
+  },
+  "xo": {
+    "rules": {
+      "import/extensions": "off"
+    }
+  }
+}
diff --git a/backend/node_modules/mquery/node_modules/debug/src/browser.js b/backend/node_modules/mquery/node_modules/debug/src/browser.js
new file mode 100644
index 0000000..df8e179
--- /dev/null
+++ b/backend/node_modules/mquery/node_modules/debug/src/browser.js
@@ -0,0 +1,272 @@
+/* eslint-env browser */
+
+/**
+ * This is the web browser implementation of `debug()`.
+ */
+
+exports.formatArgs = formatArgs;
+exports.save = save;
+exports.load = load;
+exports.useColors = useColors;
+exports.storage = localstorage();
+exports.destroy = (() => {
+	let warned = false;
+
+	return () => {
+		if (!warned) {
+			warned = true;
+			console.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.');
+		}
+	};
+})();
+
+/**
+ * Colors.
+ */
+
+exports.colors = [
+	'#0000CC',
+	'#0000FF',
+	'#0033CC',
+	'#0033FF',
+	'#0066CC',
+	'#0066FF',
+	'#0099CC',
+	'#0099FF',
+	'#00CC00',
+	'#00CC33',
+	'#00CC66',
+	'#00CC99',
+	'#00CCCC',
+	'#00CCFF',
+	'#3300CC',
+	'#3300FF',
+	'#3333CC',
+	'#3333FF',
+	'#3366CC',
+	'#3366FF',
+	'#3399CC',
+	'#3399FF',
+	'#33CC00',
+	'#33CC33',
+	'#33CC66',
+	'#33CC99',
+	'#33CCCC',
+	'#33CCFF',
+	'#6600CC',
+	'#6600FF',
+	'#6633CC',
+	'#6633FF',
+	'#66CC00',
+	'#66CC33',
+	'#9900CC',
+	'#9900FF',
+	'#9933CC',
+	'#9933FF',
+	'#99CC00',
+	'#99CC33',
+	'#CC0000',
+	'#CC0033',
+	'#CC0066',
+	'#CC0099',
+	'#CC00CC',
+	'#CC00FF',
+	'#CC3300',
+	'#CC3333',
+	'#CC3366',
+	'#CC3399',
+	'#CC33CC',
+	'#CC33FF',
+	'#CC6600',
+	'#CC6633',
+	'#CC9900',
+	'#CC9933',
+	'#CCCC00',
+	'#CCCC33',
+	'#FF0000',
+	'#FF0033',
+	'#FF0066',
+	'#FF0099',
+	'#FF00CC',
+	'#FF00FF',
+	'#FF3300',
+	'#FF3333',
+	'#FF3366',
+	'#FF3399',
+	'#FF33CC',
+	'#FF33FF',
+	'#FF6600',
+	'#FF6633',
+	'#FF9900',
+	'#FF9933',
+	'#FFCC00',
+	'#FFCC33'
+];
+
+/**
+ * Currently only WebKit-based Web Inspectors, Firefox >= v31,
+ * and the Firebug extension (any Firefox version) are known
+ * to support "%c" CSS customizations.
+ *
+ * TODO: add a `localStorage` variable to explicitly enable/disable colors
+ */
+
+// eslint-disable-next-line complexity
+function useColors() {
+	// NB: In an Electron preload script, document will be defined but not fully
+	// initialized. Since we know we're in Chrome, we'll just detect this case
+	// explicitly
+	if (typeof window !== 'undefined' && window.process && (window.process.type === 'renderer' || window.process.__nwjs)) {
+		return true;
+	}
+
+	// Internet Explorer and Edge do not support colors.
+	if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
+		return false;
+	}
+
+	let m;
+
+	// Is webkit? http://stackoverflow.com/a/16459606/376773
+	// document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
+	// eslint-disable-next-line no-return-assign
+	return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||
+		// Is firebug? http://stackoverflow.com/a/398120/376773
+		(typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||
+		// Is firefox >= v31?
+		// https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
+		(typeof navigator !== 'undefined' && navigator.userAgent && (m = navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/)) && parseInt(m[1], 10) >= 31) ||
+		// Double check webkit in userAgent just in case we are in a worker
+		(typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/));
+}
+
+/**
+ * Colorize log arguments if enabled.
+ *
+ * @api public
+ */
+
+function formatArgs(args) {
+	args[0] = (this.useColors ? '%c' : '') +
+		this.namespace +
+		(this.useColors ? ' %c' : ' ') +
+		args[0] +
+		(this.useColors ? '%c ' : ' ') +
+		'+' + module.exports.humanize(this.diff);
+
+	if (!this.useColors) {
+		return;
+	}
+
+	const c = 'color: ' + this.color;
+	args.splice(1, 0, c, 'color: inherit');
+
+	// The final "%c" is somewhat tricky, because there could be other
+	// arguments passed either before or after the %c, so we need to
+	// figure out the correct index to insert the CSS into
+	let index = 0;
+	let lastC = 0;
+	args[0].replace(/%[a-zA-Z%]/g, match => {
+		if (match === '%%') {
+			return;
+		}
+		index++;
+		if (match === '%c') {
+			// We only are interested in the *last* %c
+			// (the user may have provided their own)
+			lastC = index;
+		}
+	});
+
+	args.splice(lastC, 0, c);
+}
+
+/**
+ * Invokes `console.debug()` when available.
+ * No-op when `console.debug` is not a "function".
+ * If `console.debug` is not available, falls back
+ * to `console.log`.
+ *
+ * @api public
+ */
+exports.log = console.debug || console.log || (() => {});
+
+/**
+ * Save `namespaces`.
+ *
+ * @param {String} namespaces
+ * @api private
+ */
+function save(namespaces) {
+	try {
+		if (namespaces) {
+			exports.storage.setItem('debug', namespaces);
+		} else {
+			exports.storage.removeItem('debug');
+		}
+	} catch (error) {
+		// Swallow
+		// XXX (@Qix-) should we be logging these?
+	}
+}
+
+/**
+ * Load `namespaces`.
+ *
+ * @return {String} returns the previously persisted debug modes
+ * @api private
+ */
+function load() {
+	let r;
+	try {
+		r = exports.storage.getItem('debug');
+	} catch (error) {
+		// Swallow
+		// XXX (@Qix-) should we be logging these?
+	}
+
+	// If debug isn't set in LS, and we're in Electron, try to load $DEBUG
+	if (!r && typeof process !== 'undefined' && 'env' in process) {
+		r = process.env.DEBUG;
+	}
+
+	return r;
+}
+
+/**
+ * Localstorage attempts to return the localstorage.
+ *
+ * This is necessary because safari throws
+ * when a user disables cookies/localstorage
+ * and you attempt to access it.
+ *
+ * @return {LocalStorage}
+ * @api private
+ */
+
+function localstorage() {
+	try {
+		// TVMLKit (Apple TV JS Runtime) does not have a window object, just localStorage in the global context
+		// The Browser also has localStorage in the global context.
+		return localStorage;
+	} catch (error) {
+		// Swallow
+		// XXX (@Qix-) should we be logging these?
+	}
+}
+
+module.exports = require('./common')(exports);
+
+const {formatters} = module.exports;
+
+/**
+ * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
+ */
+
+formatters.j = function (v) {
+	try {
+		return JSON.stringify(v);
+	} catch (error) {
+		return '[UnexpectedJSONParseError]: ' + error.message;
+	}
+};
diff --git a/backend/node_modules/mquery/node_modules/debug/src/common.js b/backend/node_modules/mquery/node_modules/debug/src/common.js
new file mode 100644
index 0000000..528c7ec
--- /dev/null
+++ b/backend/node_modules/mquery/node_modules/debug/src/common.js
@@ -0,0 +1,292 @@
+
+/**
+ * This is the common logic for both the Node.js and web browser
+ * implementations of `debug()`.
+ */
+
+function setup(env) {
+	createDebug.debug = createDebug;
+	createDebug.default = createDebug;
+	createDebug.coerce = coerce;
+	createDebug.disable = disable;
+	createDebug.enable = enable;
+	createDebug.enabled = enabled;
+	createDebug.humanize = require('ms');
+	createDebug.destroy = destroy;
+
+	Object.keys(env).forEach(key => {
+		createDebug[key] = env[key];
+	});
+
+	/**
+	* The currently active debug mode names, and names to skip.
+	*/
+
+	createDebug.names = [];
+	createDebug.skips = [];
+
+	/**
+	* Map of special "%n" handling functions, for the debug "format" argument.
+	*
+	* Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
+	*/
+	createDebug.formatters = {};
+
+	/**
+	* Selects a color for a debug namespace
+	* @param {String} namespace The namespace string for the debug instance to be colored
+	* @return {Number|String} An ANSI color code for the given namespace
+	* @api private
+	*/
+	function selectColor(namespace) {
+		let hash = 0;
+
+		for (let i = 0; i < namespace.length; i++) {
+			hash = ((hash << 5) - hash) + namespace.charCodeAt(i);
+			hash |= 0; // Convert to 32bit integer
+		}
+
+		return createDebug.colors[Math.abs(hash) % createDebug.colors.length];
+	}
+	createDebug.selectColor = selectColor;
+
+	/**
+	* Create a debugger with the given `namespace`.
+	*
+	* @param {String} namespace
+	* @return {Function}
+	* @api public
+	*/
+	function createDebug(namespace) {
+		let prevTime;
+		let enableOverride = null;
+		let namespacesCache;
+		let enabledCache;
+
+		function debug(...args) {
+			// Disabled?
+			if (!debug.enabled) {
+				return;
+			}
+
+			const self = debug;
+
+			// Set `diff` timestamp
+			const curr = Number(new Date());
+			const ms = curr - (prevTime || curr);
+			self.diff = ms;
+			self.prev = prevTime;
+			self.curr = curr;
+			prevTime = curr;
+
+			args[0] = createDebug.coerce(args[0]);
+
+			if (typeof args[0] !== 'string') {
+				// Anything else let's inspect with %O
+				args.unshift('%O');
+			}
+
+			// Apply any `formatters` transformations
+			let index = 0;
+			args[0] = args[0].replace(/%([a-zA-Z%])/g, (match, format) => {
+				// If we encounter an escaped % then don't increase the array index
+				if (match === '%%') {
+					return '%';
+				}
+				index++;
+				const formatter = createDebug.formatters[format];
+				if (typeof formatter === 'function') {
+					const val = args[index];
+					match = formatter.call(self, val);
+
+					// Now we need to remove `args[index]` since it's inlined in the `format`
+					args.splice(index, 1);
+					index--;
+				}
+				return match;
+			});
+
+			// Apply env-specific formatting (colors, etc.)
+			createDebug.formatArgs.call(self, args);
+
+			const logFn = self.log || createDebug.log;
+			logFn.apply(self, args);
+		}
+
+		debug.namespace = namespace;
+		debug.useColors = createDebug.useColors();
+		debug.color = createDebug.selectColor(namespace);
+		debug.extend = extend;
+		debug.destroy = createDebug.destroy; // XXX Temporary. Will be removed in the next major release.
+
+		Object.defineProperty(debug, 'enabled', {
+			enumerable: true,
+			configurable: false,
+			get: () => {
+				if (enableOverride !== null) {
+					return enableOverride;
+				}
+				if (namespacesCache !== createDebug.namespaces) {
+					namespacesCache = createDebug.namespaces;
+					enabledCache = createDebug.enabled(namespace);
+				}
+
+				return enabledCache;
+			},
+			set: v => {
+				enableOverride = v;
+			}
+		});
+
+		// Env-specific initialization logic for debug instances
+		if (typeof createDebug.init === 'function') {
+			createDebug.init(debug);
+		}
+
+		return debug;
+	}
+
+	function extend(namespace, delimiter) {
+		const newDebug = createDebug(this.namespace + (typeof delimiter === 'undefined' ? ':' : delimiter) + namespace);
+		newDebug.log = this.log;
+		return newDebug;
+	}
+
+	/**
+	* Enables a debug mode by namespaces. This can include modes
+	* separated by a colon and wildcards.
+	*
+	* @param {String} namespaces
+	* @api public
+	*/
+	function enable(namespaces) {
+		createDebug.save(namespaces);
+		createDebug.namespaces = namespaces;
+
+		createDebug.names = [];
+		createDebug.skips = [];
+
+		const split = (typeof namespaces === 'string' ? namespaces : '')
+			.trim()
+			.replace(' ', ',')
+			.split(',')
+			.filter(Boolean);
+
+		for (const ns of split) {
+			if (ns[0] === '-') {
+				createDebug.skips.push(ns.slice(1));
+			} else {
+				createDebug.names.push(ns);
+			}
+		}
+	}
+
+	/**
+	 * Checks if the given string matches a namespace template, honoring
+	 * asterisks as wildcards.
+	 *
+	 * @param {String} search
+	 * @param {String} template
+	 * @return {Boolean}
+	 */
+	function matchesTemplate(search, template) {
+		let searchIndex = 0;
+		let templateIndex = 0;
+		let starIndex = -1;
+		let matchIndex = 0;
+
+		while (searchIndex < search.length) {
+			if (templateIndex < template.length && (template[templateIndex] === search[searchIndex] || template[templateIndex] === '*')) {
+				// Match character or proceed with wildcard
+				if (template[templateIndex] === '*') {
+					starIndex = templateIndex;
+					matchIndex = searchIndex;
+					templateIndex++; // Skip the '*'
+				} else {
+					searchIndex++;
+					templateIndex++;
+				}
+			} else if (starIndex !== -1) { // eslint-disable-line no-negated-condition
+				// Backtrack to the last '*' and try to match more characters
+				templateIndex = starIndex + 1;
+				matchIndex++;
+				searchIndex = matchIndex;
+			} else {
+				return false; // No match
+			}
+		}
+
+		// Handle trailing '*' in template
+		while (templateIndex < template.length && template[templateIndex] === '*') {
+			templateIndex++;
+		}
+
+		return templateIndex === template.length;
+	}
+
+	/**
+	* Disable debug output.
+	*
+	* @return {String} namespaces
+	* @api public
+	*/
+	function disable() {
+		const namespaces = [
+			...createDebug.names,
+			...createDebug.skips.map(namespace => '-' + namespace)
+		].join(',');
+		createDebug.enable('');
+		return namespaces;
+	}
+
+	/**
+	* Returns true if the given mode name is enabled, false otherwise.
+	*
+	* @param {String} name
+	* @return {Boolean}
+	* @api public
+	*/
+	function enabled(name) {
+		for (const skip of createDebug.skips) {
+			if (matchesTemplate(name, skip)) {
+				return false;
+			}
+		}
+
+		for (const ns of createDebug.names) {
+			if (matchesTemplate(name, ns)) {
+				return true;
+			}
+		}
+
+		return false;
+	}
+
+	/**
+	* Coerce `val`.
+	*
+	* @param {Mixed} val
+	* @return {Mixed}
+	* @api private
+	*/
+	function coerce(val) {
+		if (val instanceof Error) {
+			return val.stack || val.message;
+		}
+		return val;
+	}
+
+	/**
+	* XXX DO NOT USE. This is a temporary stub function.
+	* XXX It WILL be removed in the next major release.
+	*/
+	function destroy() {
+		console.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.');
+	}
+
+	createDebug.enable(createDebug.load());
+
+	return createDebug;
+}
+
+module.exports = setup;
diff --git a/backend/node_modules/mquery/node_modules/debug/src/index.js b/backend/node_modules/mquery/node_modules/debug/src/index.js
new file mode 100644
index 0000000..bf4c57f
--- /dev/null
+++ b/backend/node_modules/mquery/node_modules/debug/src/index.js
@@ -0,0 +1,10 @@
+/**
+ * Detect Electron renderer / nwjs process, which is node, but we should
+ * treat as a browser.
+ */
+
+if (typeof process === 'undefined' || process.type === 'renderer' || process.browser === true || process.__nwjs) {
+	module.exports = require('./browser.js');
+} else {
+	module.exports = require('./node.js');
+}
diff --git a/backend/node_modules/mquery/node_modules/debug/src/node.js b/backend/node_modules/mquery/node_modules/debug/src/node.js
new file mode 100644
index 0000000..715560a
--- /dev/null
+++ b/backend/node_modules/mquery/node_modules/debug/src/node.js
@@ -0,0 +1,263 @@
+/**
+ * Module dependencies.
+ */
+
+const tty = require('tty');
+const util = require('util');
+
+/**
+ * This is the Node.js implementation of `debug()`.
+ */
+
+exports.init = init;
+exports.log = log;
+exports.formatArgs = formatArgs;
+exports.save = save;
+exports.load = load;
+exports.useColors = useColors;
+exports.destroy = util.deprecate(
+	() => {},
+	'Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.'
+);
+
+/**
+ * Colors.
+ */
+
+exports.colors = [6, 2, 3, 4, 5, 1];
+
+try {
+	// Optional dependency (as in, doesn't need to be installed, NOT like optionalDependencies in package.json)
+	// eslint-disable-next-line import/no-extraneous-dependencies
+	const supportsColor = require('supports-color');
+
+	if (supportsColor && (supportsColor.stderr || supportsColor).level >= 2) {
+		exports.colors = [
+			20,
+			21,
+			26,
+			27,
+			32,
+			33,
+			38,
+			39,
+			40,
+			41,
+			42,
+			43,
+			44,
+			45,
+			56,
+			57,
+			62,
+			63,
+			68,
+			69,
+			74,
+			75,
+			76,
+			77,
+			78,
+			79,
+			80,
+			81,
+			92,
+			93,
+			98,
+			99,
+			112,
+			113,
+			128,
+			129,
+			134,
+			135,
+			148,
+			149,
+			160,
+			161,
+			162,
+			163,
+			164,
+			165,
+			166,
+			167,
+			168,
+			169,
+			170,
+			171,
+			172,
+			173,
+			178,
+			179,
+			184,
+			185,
+			196,
+			197,
+			198,
+			199,
+			200,
+			201,
+			202,
+			203,
+			204,
+			205,
+			206,
+			207,
+			208,
+			209,
+			214,
+			215,
+			220,
+			221
+		];
+	}
+} catch (error) {
+	// Swallow - we only care if `supports-color` is available; it doesn't have to be.
+}
+
+/**
+ * Build up the default `inspectOpts` object from the environment variables.
+ *
+ *   $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js
+ */
+
+exports.inspectOpts = Object.keys(process.env).filter(key => {
+	return /^debug_/i.test(key);
+}).reduce((obj, key) => {
+	// Camel-case
+	const prop = key
+		.substring(6)
+		.toLowerCase()
+		.replace(/_([a-z])/g, (_, k) => {
+			return k.toUpperCase();
+		});
+
+	// Coerce string value into JS value
+	let val = process.env[key];
+	if (/^(yes|on|true|enabled)$/i.test(val)) {
+		val = true;
+	} else if (/^(no|off|false|disabled)$/i.test(val)) {
+		val = false;
+	} else if (val === 'null') {
+		val = null;
+	} else {
+		val = Number(val);
+	}
+
+	obj[prop] = val;
+	return obj;
+}, {});
+
+/**
+ * Is stdout a TTY? Colored output is enabled when `true`.
+ */
+
+function useColors() {
+	return 'colors' in exports.inspectOpts ?
+		Boolean(exports.inspectOpts.colors) :
+		tty.isatty(process.stderr.fd);
+}
+
+/**
+ * Adds ANSI color escape codes if enabled.
+ *
+ * @api public
+ */
+
+function formatArgs(args) {
+	const {namespace: name, useColors} = this;
+
+	if (useColors) {
+		const c = this.color;
+		const colorCode = '\u001B[3' + (c < 8 ? c : '8;5;' + c);
+		const prefix = `  ${colorCode};1m${name} \u001B[0m`;
+
+		args[0] = prefix + args[0].split('\n').join('\n' + prefix);
+		args.push(colorCode + 'm+' + module.exports.humanize(this.diff) + '\u001B[0m');
+	} else {
+		args[0] = getDate() + name + ' ' + args[0];
+	}
+}
+
+function getDate() {
+	if (exports.inspectOpts.hideDate) {
+		return '';
+	}
+	return new Date().toISOString() + ' ';
+}
+
+/**
+ * Invokes `util.formatWithOptions()` with the specified arguments and writes to stderr.
+ */
+
+function log(...args) {
+	return process.stderr.write(util.formatWithOptions(exports.inspectOpts, ...args) + '\n');
+}
+
+/**
+ * Save `namespaces`.
+ *
+ * @param {String} namespaces
+ * @api private
+ */
+function save(namespaces) {
+	if (namespaces) {
+		process.env.DEBUG = namespaces;
+	} else {
+		// If you set a process.env field to null or undefined, it gets cast to the
+		// string 'null' or 'undefined'. Just delete instead.
+		delete process.env.DEBUG;
+	}
+}
+
+/**
+ * Load `namespaces`.
+ *
+ * @return {String} returns the previously persisted debug modes
+ * @api private
+ */
+
+function load() {
+	return process.env.DEBUG;
+}
+
+/**
+ * Init logic for `debug` instances.
+ *
+ * Create a new `inspectOpts` object in case `useColors` is set
+ * differently for a particular `debug` instance.
+ */
+
+function init(debug) {
+	debug.inspectOpts = {};
+
+	const keys = Object.keys(exports.inspectOpts);
+	for (let i = 0; i < keys.length; i++) {
+		debug.inspectOpts[keys[i]] = exports.inspectOpts[keys[i]];
+	}
+}
+
+module.exports = require('./common')(exports);
+
+const {formatters} = module.exports;
+
+/**
+ * Map %o to `util.inspect()`, all on a single line.
+ */
+
+formatters.o = function (v) {
+	this.inspectOpts.colors = this.useColors;
+	return util.inspect(v, this.inspectOpts)
+		.split('\n')
+		.map(str => str.trim())
+		.join(' ');
+};
+
+/**
+ * Map %O to `util.inspect()`, allowing multiple lines if needed.
+ */
+
+formatters.O = function (v) {
+	this.inspectOpts.colors = this.useColors;
+	return util.inspect(v, this.inspectOpts);
+};
diff --git a/backend/node_modules/mquery/node_modules/ms/index.js b/backend/node_modules/mquery/node_modules/ms/index.js
new file mode 100644
index 0000000..ea734fb
--- /dev/null
+++ b/backend/node_modules/mquery/node_modules/ms/index.js
@@ -0,0 +1,162 @@
+/**
+ * Helpers.
+ */
+
+var s = 1000;
+var m = s * 60;
+var h = m * 60;
+var d = h * 24;
+var w = d * 7;
+var y = d * 365.25;
+
+/**
+ * Parse or format the given `val`.
+ *
+ * Options:
+ *
+ *  - `long` verbose formatting [false]
+ *
+ * @param {String|Number} val
+ * @param {Object} [options]
+ * @throws {Error} throw an error if val is not a non-empty string or a number
+ * @return {String|Number}
+ * @api public
+ */
+
+module.exports = function (val, options) {
+  options = options || {};
+  var type = typeof val;
+  if (type === 'string' && val.length > 0) {
+    return parse(val);
+  } else if (type === 'number' && isFinite(val)) {
+    return options.long ? fmtLong(val) : fmtShort(val);
+  }
+  throw new Error(
+    'val is not a non-empty string or a valid number. val=' +
+      JSON.stringify(val)
+  );
+};
+
+/**
+ * Parse the given `str` and return milliseconds.
+ *
+ * @param {String} str
+ * @return {Number}
+ * @api private
+ */
+
+function parse(str) {
+  str = String(str);
+  if (str.length > 100) {
+    return;
+  }
+  var match = /^(-?(?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(
+    str
+  );
+  if (!match) {
+    return;
+  }
+  var n = parseFloat(match[1]);
+  var type = (match[2] || 'ms').toLowerCase();
+  switch (type) {
+    case 'years':
+    case 'year':
+    case 'yrs':
+    case 'yr':
+    case 'y':
+      return n * y;
+    case 'weeks':
+    case 'week':
+    case 'w':
+      return n * w;
+    case 'days':
+    case 'day':
+    case 'd':
+      return n * d;
+    case 'hours':
+    case 'hour':
+    case 'hrs':
+    case 'hr':
+    case 'h':
+      return n * h;
+    case 'minutes':
+    case 'minute':
+    case 'mins':
+    case 'min':
+    case 'm':
+      return n * m;
+    case 'seconds':
+    case 'second':
+    case 'secs':
+    case 'sec':
+    case 's':
+      return n * s;
+    case 'milliseconds':
+    case 'millisecond':
+    case 'msecs':
+    case 'msec':
+    case 'ms':
+      return n;
+    default:
+      return undefined;
+  }
+}
+
+/**
+ * Short format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function fmtShort(ms) {
+  var msAbs = Math.abs(ms);
+  if (msAbs >= d) {
+    return Math.round(ms / d) + 'd';
+  }
+  if (msAbs >= h) {
+    return Math.round(ms / h) + 'h';
+  }
+  if (msAbs >= m) {
+    return Math.round(ms / m) + 'm';
+  }
+  if (msAbs >= s) {
+    return Math.round(ms / s) + 's';
+  }
+  return ms + 'ms';
+}
+
+/**
+ * Long format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function fmtLong(ms) {
+  var msAbs = Math.abs(ms);
+  if (msAbs >= d) {
+    return plural(ms, msAbs, d, 'day');
+  }
+  if (msAbs >= h) {
+    return plural(ms, msAbs, h, 'hour');
+  }
+  if (msAbs >= m) {
+    return plural(ms, msAbs, m, 'minute');
+  }
+  if (msAbs >= s) {
+    return plural(ms, msAbs, s, 'second');
+  }
+  return ms + ' ms';
+}
+
+/**
+ * Pluralization helper.
+ */
+
+function plural(ms, msAbs, n, name) {
+  var isPlural = msAbs >= n * 1.5;
+  return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');
+}
diff --git a/backend/node_modules/mquery/node_modules/ms/license.md b/backend/node_modules/mquery/node_modules/ms/license.md
new file mode 100644
index 0000000..fa5d39b
--- /dev/null
+++ b/backend/node_modules/mquery/node_modules/ms/license.md
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2020 Vercel, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/mquery/node_modules/ms/package.json b/backend/node_modules/mquery/node_modules/ms/package.json
new file mode 100644
index 0000000..4997189
--- /dev/null
+++ b/backend/node_modules/mquery/node_modules/ms/package.json
@@ -0,0 +1,38 @@
+{
+  "name": "ms",
+  "version": "2.1.3",
+  "description": "Tiny millisecond conversion utility",
+  "repository": "vercel/ms",
+  "main": "./index",
+  "files": [
+    "index.js"
+  ],
+  "scripts": {
+    "precommit": "lint-staged",
+    "lint": "eslint lib/* bin/*",
+    "test": "mocha tests.js"
+  },
+  "eslintConfig": {
+    "extends": "eslint:recommended",
+    "env": {
+      "node": true,
+      "es6": true
+    }
+  },
+  "lint-staged": {
+    "*.js": [
+      "npm run lint",
+      "prettier --single-quote --write",
+      "git add"
+    ]
+  },
+  "license": "MIT",
+  "devDependencies": {
+    "eslint": "4.18.2",
+    "expect.js": "0.3.1",
+    "husky": "0.14.3",
+    "lint-staged": "5.0.0",
+    "mocha": "4.0.1",
+    "prettier": "2.0.5"
+  }
+}
diff --git a/backend/node_modules/mquery/node_modules/ms/readme.md b/backend/node_modules/mquery/node_modules/ms/readme.md
new file mode 100644
index 0000000..0fc1abb
--- /dev/null
+++ b/backend/node_modules/mquery/node_modules/ms/readme.md
@@ -0,0 +1,59 @@
+# ms
+
+![CI](https://github.com/vercel/ms/workflows/CI/badge.svg)
+
+Use this package to easily convert various time formats to milliseconds.
+
+## Examples
+
+```js
+ms('2 days')  // 172800000
+ms('1d')      // 86400000
+ms('10h')     // 36000000
+ms('2.5 hrs') // 9000000
+ms('2h')      // 7200000
+ms('1m')      // 60000
+ms('5s')      // 5000
+ms('1y')      // 31557600000
+ms('100')     // 100
+ms('-3 days') // -259200000
+ms('-1h')     // -3600000
+ms('-200')    // -200
+```
+
+### Convert from Milliseconds
+
+```js
+ms(60000)             // "1m"
+ms(2 * 60000)         // "2m"
+ms(-3 * 60000)        // "-3m"
+ms(ms('10 hours'))    // "10h"
+```
+
+### Time Format Written-Out
+
+```js
+ms(60000, { long: true })             // "1 minute"
+ms(2 * 60000, { long: true })         // "2 minutes"
+ms(-3 * 60000, { long: true })        // "-3 minutes"
+ms(ms('10 hours'), { long: true })    // "10 hours"
+```
+
+## Features
+
+- Works both in [Node.js](https://nodejs.org) and in the browser
+- If a number is supplied to `ms`, a string with a unit is returned
+- If a string that contains the number is supplied, it returns it as a number (e.g.: it returns `100` for `'100'`)
+- If you pass a string with a number and a valid unit, the number of equivalent milliseconds is returned
+
+## Related Packages
+
+- [ms.macro](https://github.com/knpwrs/ms.macro) - Run `ms` as a macro at build-time.
+
+## Caught a Bug?
+
+1. [Fork](https://help.github.com/articles/fork-a-repo/) this repository to your own GitHub account and then [clone](https://help.github.com/articles/cloning-a-repository/) it to your local device
+2. Link the package to the global module directory: `npm link`
+3. Within the module you want to test your local development instance of ms, just link it to the dependencies: `npm link ms`. Instead of the default one from npm, Node.js will now use your clone of ms!
+
+As always, you can run the tests using: `npm test`
diff --git a/backend/node_modules/mquery/package.json b/backend/node_modules/mquery/package.json
new file mode 100644
index 0000000..9016083
--- /dev/null
+++ b/backend/node_modules/mquery/package.json
@@ -0,0 +1,38 @@
+{
+  "name": "mquery",
+  "version": "5.0.0",
+  "description": "Expressive query building for MongoDB",
+  "main": "lib/mquery.js",
+  "scripts": {
+    "test": "mocha --exit test/index.js test/*.test.js",
+    "fix-lint": "eslint . --fix",
+    "lint": "eslint ."
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/aheckmann/mquery.git"
+  },
+  "engines": {
+    "node": ">=14.0.0"
+  },
+  "dependencies": {
+    "debug": "4.x"
+  },
+  "devDependencies": {
+    "eslint": "8.x",
+    "eslint-plugin-mocha-no-only": "1.1.1",
+    "mocha": "9.x",
+    "mongodb": "5.x"
+  },
+  "bugs": {
+    "url": "https://github.com/aheckmann/mquery/issues/new"
+  },
+  "author": "Aaron Heckmann <aaron.heckmann+github@gmail.com>",
+  "license": "MIT",
+  "keywords": [
+    "mongodb",
+    "query",
+    "builder"
+  ],
+  "homepage": "https://github.com/aheckmann/mquery/"
+}
diff --git a/backend/node_modules/ms/index.js b/backend/node_modules/ms/index.js
new file mode 100644
index 0000000..6a522b1
--- /dev/null
+++ b/backend/node_modules/ms/index.js
@@ -0,0 +1,152 @@
+/**
+ * Helpers.
+ */
+
+var s = 1000;
+var m = s * 60;
+var h = m * 60;
+var d = h * 24;
+var y = d * 365.25;
+
+/**
+ * Parse or format the given `val`.
+ *
+ * Options:
+ *
+ *  - `long` verbose formatting [false]
+ *
+ * @param {String|Number} val
+ * @param {Object} [options]
+ * @throws {Error} throw an error if val is not a non-empty string or a number
+ * @return {String|Number}
+ * @api public
+ */
+
+module.exports = function(val, options) {
+  options = options || {};
+  var type = typeof val;
+  if (type === 'string' && val.length > 0) {
+    return parse(val);
+  } else if (type === 'number' && isNaN(val) === false) {
+    return options.long ? fmtLong(val) : fmtShort(val);
+  }
+  throw new Error(
+    'val is not a non-empty string or a valid number. val=' +
+      JSON.stringify(val)
+  );
+};
+
+/**
+ * Parse the given `str` and return milliseconds.
+ *
+ * @param {String} str
+ * @return {Number}
+ * @api private
+ */
+
+function parse(str) {
+  str = String(str);
+  if (str.length > 100) {
+    return;
+  }
+  var match = /^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(
+    str
+  );
+  if (!match) {
+    return;
+  }
+  var n = parseFloat(match[1]);
+  var type = (match[2] || 'ms').toLowerCase();
+  switch (type) {
+    case 'years':
+    case 'year':
+    case 'yrs':
+    case 'yr':
+    case 'y':
+      return n * y;
+    case 'days':
+    case 'day':
+    case 'd':
+      return n * d;
+    case 'hours':
+    case 'hour':
+    case 'hrs':
+    case 'hr':
+    case 'h':
+      return n * h;
+    case 'minutes':
+    case 'minute':
+    case 'mins':
+    case 'min':
+    case 'm':
+      return n * m;
+    case 'seconds':
+    case 'second':
+    case 'secs':
+    case 'sec':
+    case 's':
+      return n * s;
+    case 'milliseconds':
+    case 'millisecond':
+    case 'msecs':
+    case 'msec':
+    case 'ms':
+      return n;
+    default:
+      return undefined;
+  }
+}
+
+/**
+ * Short format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function fmtShort(ms) {
+  if (ms >= d) {
+    return Math.round(ms / d) + 'd';
+  }
+  if (ms >= h) {
+    return Math.round(ms / h) + 'h';
+  }
+  if (ms >= m) {
+    return Math.round(ms / m) + 'm';
+  }
+  if (ms >= s) {
+    return Math.round(ms / s) + 's';
+  }
+  return ms + 'ms';
+}
+
+/**
+ * Long format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function fmtLong(ms) {
+  return plural(ms, d, 'day') ||
+    plural(ms, h, 'hour') ||
+    plural(ms, m, 'minute') ||
+    plural(ms, s, 'second') ||
+    ms + ' ms';
+}
+
+/**
+ * Pluralization helper.
+ */
+
+function plural(ms, n, name) {
+  if (ms < n) {
+    return;
+  }
+  if (ms < n * 1.5) {
+    return Math.floor(ms / n) + ' ' + name;
+  }
+  return Math.ceil(ms / n) + ' ' + name + 's';
+}
diff --git a/backend/node_modules/ms/license.md b/backend/node_modules/ms/license.md
new file mode 100644
index 0000000..69b6125
--- /dev/null
+++ b/backend/node_modules/ms/license.md
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 Zeit, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/ms/package.json b/backend/node_modules/ms/package.json
new file mode 100644
index 0000000..6a31c81
--- /dev/null
+++ b/backend/node_modules/ms/package.json
@@ -0,0 +1,37 @@
+{
+  "name": "ms",
+  "version": "2.0.0",
+  "description": "Tiny milisecond conversion utility",
+  "repository": "zeit/ms",
+  "main": "./index",
+  "files": [
+    "index.js"
+  ],
+  "scripts": {
+    "precommit": "lint-staged",
+    "lint": "eslint lib/* bin/*",
+    "test": "mocha tests.js"
+  },
+  "eslintConfig": {
+    "extends": "eslint:recommended",
+    "env": {
+      "node": true,
+      "es6": true
+    }
+  },
+  "lint-staged": {
+    "*.js": [
+      "npm run lint",
+      "prettier --single-quote --write",
+      "git add"
+    ]
+  },
+  "license": "MIT",
+  "devDependencies": {
+    "eslint": "3.19.0",
+    "expect.js": "0.3.1",
+    "husky": "0.13.3",
+    "lint-staged": "3.4.1",
+    "mocha": "3.4.1"
+  }
+}
diff --git a/backend/node_modules/ms/readme.md b/backend/node_modules/ms/readme.md
new file mode 100644
index 0000000..84a9974
--- /dev/null
+++ b/backend/node_modules/ms/readme.md
@@ -0,0 +1,51 @@
+# ms
+
+[![Build Status](https://travis-ci.org/zeit/ms.svg?branch=master)](https://travis-ci.org/zeit/ms)
+[![Slack Channel](http://zeit-slackin.now.sh/badge.svg)](https://zeit.chat/)
+
+Use this package to easily convert various time formats to milliseconds.
+
+## Examples
+
+```js
+ms('2 days')  // 172800000
+ms('1d')      // 86400000
+ms('10h')     // 36000000
+ms('2.5 hrs') // 9000000
+ms('2h')      // 7200000
+ms('1m')      // 60000
+ms('5s')      // 5000
+ms('1y')      // 31557600000
+ms('100')     // 100
+```
+
+### Convert from milliseconds
+
+```js
+ms(60000)             // "1m"
+ms(2 * 60000)         // "2m"
+ms(ms('10 hours'))    // "10h"
+```
+
+### Time format written-out
+
+```js
+ms(60000, { long: true })             // "1 minute"
+ms(2 * 60000, { long: true })         // "2 minutes"
+ms(ms('10 hours'), { long: true })    // "10 hours"
+```
+
+## Features
+
+- Works both in [node](https://nodejs.org) and in the browser.
+- If a number is supplied to `ms`, a string with a unit is returned.
+- If a string that contains the number is supplied, it returns it as a number (e.g.: it returns `100` for `'100'`).
+- If you pass a string with a number and a valid unit, the number of equivalent ms is returned.
+
+## Caught a bug?
+
+1. [Fork](https://help.github.com/articles/fork-a-repo/) this repository to your own GitHub account and then [clone](https://help.github.com/articles/cloning-a-repository/) it to your local device
+2. Link the package to the global module directory: `npm link`
+3. Within the module you want to test your local development instance of ms, just link it to the dependencies: `npm link ms`. Instead of the default one from npm, node will now use your clone of ms!
+
+As always, you can run the tests using: `npm test`
diff --git a/backend/node_modules/multer/LICENSE b/backend/node_modules/multer/LICENSE
new file mode 100644
index 0000000..6c011b1
--- /dev/null
+++ b/backend/node_modules/multer/LICENSE
@@ -0,0 +1,17 @@
+Copyright (c) 2014 Hage Yaapa <[http://www.hacksparrow.com](http://www.hacksparrow.com)>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/multer/README.md b/backend/node_modules/multer/README.md
new file mode 100644
index 0000000..7f5d080
--- /dev/null
+++ b/backend/node_modules/multer/README.md
@@ -0,0 +1,333 @@
+# Multer [![Build Status](https://travis-ci.org/expressjs/multer.svg?branch=master)](https://travis-ci.org/expressjs/multer) [![NPM version](https://badge.fury.io/js/multer.svg)](https://badge.fury.io/js/multer) [![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat)](https://github.com/feross/standard)
+
+Multer is a node.js middleware for handling `multipart/form-data`, which is primarily used for uploading files. It is written
+on top of [busboy](https://github.com/mscdex/busboy) for maximum efficiency.
+
+**NOTE**: Multer will not process any form which is not multipart (`multipart/form-data`).
+
+## Translations 
+
+This README is also available in other languages:
+
+- [Español](https://github.com/expressjs/multer/blob/master/doc/README-es.md) (Spanish)
+- [简体中文](https://github.com/expressjs/multer/blob/master/doc/README-zh-cn.md) (Chinese)
+- [한국어](https://github.com/expressjs/multer/blob/master/doc/README-ko.md) (Korean)
+- [Русский язык](https://github.com/expressjs/multer/blob/master/doc/README-ru.md) (Russian)
+- [Việt Nam](https://github.com/expressjs/multer/blob/master/doc/README-vi.md) (Vietnam)
+- [Português](https://github.com/expressjs/multer/blob/master/doc/README-pt-br.md) (Portuguese Brazil)
+
+## Installation
+
+```sh
+$ npm install --save multer
+```
+
+## Usage
+
+Multer adds a `body` object and a `file` or `files` object to the `request` object. The `body` object contains the values of the text fields of the form, the `file` or `files` object contains the files uploaded via the form.
+
+Basic usage example:
+
+Don't forget the `enctype="multipart/form-data"` in your form.
+
+```html
+<form action="/profile" method="post" enctype="multipart/form-data">
+  <input type="file" name="avatar" />
+</form>
+```
+
+```javascript
+const express = require('express')
+const multer  = require('multer')
+const upload = multer({ dest: 'uploads/' })
+
+const app = express()
+
+app.post('/profile', upload.single('avatar'), function (req, res, next) {
+  // req.file is the `avatar` file
+  // req.body will hold the text fields, if there were any
+})
+
+app.post('/photos/upload', upload.array('photos', 12), function (req, res, next) {
+  // req.files is array of `photos` files
+  // req.body will contain the text fields, if there were any
+})
+
+const cpUpload = upload.fields([{ name: 'avatar', maxCount: 1 }, { name: 'gallery', maxCount: 8 }])
+app.post('/cool-profile', cpUpload, function (req, res, next) {
+  // req.files is an object (String -> Array) where fieldname is the key, and the value is array of files
+  //
+  // e.g.
+  //  req.files['avatar'][0] -> File
+  //  req.files['gallery'] -> Array
+  //
+  // req.body will contain the text fields, if there were any
+})
+```
+
+In case you need to handle a text-only multipart form, you should use the `.none()` method:
+
+```javascript
+const express = require('express')
+const app = express()
+const multer  = require('multer')
+const upload = multer()
+
+app.post('/profile', upload.none(), function (req, res, next) {
+  // req.body contains the text fields
+})
+```
+
+Here's an example on how multer is used an HTML form. Take special note of the `enctype="multipart/form-data"` and `name="uploaded_file"` fields:
+
+```html
+<form action="/stats" enctype="multipart/form-data" method="post">
+  <div class="form-group">
+    <input type="file" class="form-control-file" name="uploaded_file">
+    <input type="text" class="form-control" placeholder="Number of speakers" name="nspeakers">
+    <input type="submit" value="Get me the stats!" class="btn btn-default">            
+  </div>
+</form>
+```
+
+Then in your javascript file you would add these lines to access both the file and the body. It is important that you use the `name` field value from the form in your upload function. This tells multer which field on the request it should look for the files in. If these fields aren't the same in the HTML form and on your server, your upload will fail:
+
+```javascript
+const multer  = require('multer')
+const upload = multer({ dest: './public/data/uploads/' })
+app.post('/stats', upload.single('uploaded_file'), function (req, res) {
+   // req.file is the name of your file in the form above, here 'uploaded_file'
+   // req.body will hold the text fields, if there were any 
+   console.log(req.file, req.body)
+});
+```
+
+
+
+## API
+
+### File information
+
+Each file contains the following information:
+
+Key | Description | Note
+--- | --- | ---
+`fieldname` | Field name specified in the form |
+`originalname` | Name of the file on the user's computer |
+`encoding` | Encoding type of the file |
+`mimetype` | Mime type of the file |
+`size` | Size of the file in bytes |
+`destination` | The folder to which the file has been saved | `DiskStorage`
+`filename` | The name of the file within the `destination` | `DiskStorage`
+`path` | The full path to the uploaded file | `DiskStorage`
+`buffer` | A `Buffer` of the entire file | `MemoryStorage`
+
+### `multer(opts)`
+
+Multer accepts an options object, the most basic of which is the `dest`
+property, which tells Multer where to upload the files. In case you omit the
+options object, the files will be kept in memory and never written to disk.
+
+By default, Multer will rename the files so as to avoid naming conflicts. The
+renaming function can be customized according to your needs.
+
+The following are the options that can be passed to Multer.
+
+Key | Description
+--- | ---
+`dest` or `storage` | Where to store the files
+`fileFilter` | Function to control which files are accepted
+`limits` | Limits of the uploaded data
+`preservePath` | Keep the full path of files instead of just the base name
+
+In an average web app, only `dest` might be required, and configured as shown in
+the following example.
+
+```javascript
+const upload = multer({ dest: 'uploads/' })
+```
+
+If you want more control over your uploads, you'll want to use the `storage`
+option instead of `dest`. Multer ships with storage engines `DiskStorage`
+and `MemoryStorage`; More engines are available from third parties.
+
+#### `.single(fieldname)`
+
+Accept a single file with the name `fieldname`. The single file will be stored
+in `req.file`.
+
+#### `.array(fieldname[, maxCount])`
+
+Accept an array of files, all with the name `fieldname`. Optionally error out if
+more than `maxCount` files are uploaded. The array of files will be stored in
+`req.files`.
+
+#### `.fields(fields)`
+
+Accept a mix of files, specified by `fields`. An object with arrays of files
+will be stored in `req.files`.
+
+`fields` should be an array of objects with `name` and optionally a `maxCount`.
+Example:
+
+```javascript
+[
+  { name: 'avatar', maxCount: 1 },
+  { name: 'gallery', maxCount: 8 }
+]
+```
+
+#### `.none()`
+
+Accept only text fields. If any file upload is made, error with code
+"LIMIT\_UNEXPECTED\_FILE" will be issued.
+
+#### `.any()`
+
+Accepts all files that comes over the wire. An array of files will be stored in
+`req.files`.
+
+**WARNING:** Make sure that you always handle the files that a user uploads.
+Never add multer as a global middleware since a malicious user could upload
+files to a route that you didn't anticipate. Only use this function on routes
+where you are handling the uploaded files.
+
+### `storage`
+
+#### `DiskStorage`
+
+The disk storage engine gives you full control on storing files to disk.
+
+```javascript
+const storage = multer.diskStorage({
+  destination: function (req, file, cb) {
+    cb(null, '/tmp/my-uploads')
+  },
+  filename: function (req, file, cb) {
+    const uniqueSuffix = Date.now() + '-' + Math.round(Math.random() * 1E9)
+    cb(null, file.fieldname + '-' + uniqueSuffix)
+  }
+})
+
+const upload = multer({ storage: storage })
+```
+
+There are two options available, `destination` and `filename`. They are both
+functions that determine where the file should be stored.
+
+`destination` is used to determine within which folder the uploaded files should
+be stored. This can also be given as a `string` (e.g. `'/tmp/uploads'`). If no
+`destination` is given, the operating system's default directory for temporary
+files is used.
+
+**Note:** You are responsible for creating the directory when providing
+`destination` as a function. When passing a string, multer will make sure that
+the directory is created for you.
+
+`filename` is used to determine what the file should be named inside the folder.
+If no `filename` is given, each file will be given a random name that doesn't
+include any file extension.
+
+**Note:** Multer will not append any file extension for you, your function
+should return a filename complete with an file extension.
+
+Each function gets passed both the request (`req`) and some information about
+the file (`file`) to aid with the decision.
+
+Note that `req.body` might not have been fully populated yet. It depends on the
+order that the client transmits fields and files to the server.
+
+For understanding the calling convention used in the callback (needing to pass
+null as the first param), refer to
+[Node.js error handling](https://www.joyent.com/node-js/production/design/errors)
+
+#### `MemoryStorage`
+
+The memory storage engine stores the files in memory as `Buffer` objects. It
+doesn't have any options.
+
+```javascript
+const storage = multer.memoryStorage()
+const upload = multer({ storage: storage })
+```
+
+When using memory storage, the file info will contain a field called
+`buffer` that contains the entire file.
+
+**WARNING**: Uploading very large files, or relatively small files in large
+numbers very quickly, can cause your application to run out of memory when
+memory storage is used.
+
+### `limits`
+
+An object specifying the size limits of the following optional properties. Multer passes this object into busboy directly, and the details of the properties can be found on [busboy's page](https://github.com/mscdex/busboy#busboy-methods).
+
+The following integer values are available:
+
+Key | Description | Default
+--- | --- | ---
+`fieldNameSize` | Max field name size | 100 bytes
+`fieldSize` | Max field value size (in bytes) | 1MB
+`fields` | Max number of non-file fields | Infinity
+`fileSize` | For multipart forms, the max file size (in bytes) | Infinity
+`files` | For multipart forms, the max number of file fields | Infinity
+`parts` | For multipart forms, the max number of parts (fields + files) | Infinity
+`headerPairs` | For multipart forms, the max number of header key=>value pairs to parse | 2000
+
+Specifying the limits can help protect your site against denial of service (DoS) attacks.
+
+### `fileFilter`
+
+Set this to a function to control which files should be uploaded and which
+should be skipped. The function should look like this:
+
+```javascript
+function fileFilter (req, file, cb) {
+
+  // The function should call `cb` with a boolean
+  // to indicate if the file should be accepted
+
+  // To reject this file pass `false`, like so:
+  cb(null, false)
+
+  // To accept the file pass `true`, like so:
+  cb(null, true)
+
+  // You can always pass an error if something goes wrong:
+  cb(new Error('I don\'t have a clue!'))
+
+}
+```
+
+## Error handling
+
+When encountering an error, Multer will delegate the error to Express. You can
+display a nice error page using [the standard express way](http://expressjs.com/guide/error-handling.html).
+
+If you want to catch errors specifically from Multer, you can call the
+middleware function by yourself. Also, if you want to catch only [the Multer errors](https://github.com/expressjs/multer/blob/master/lib/multer-error.js), you can use the `MulterError` class that is attached to the `multer` object itself (e.g. `err instanceof multer.MulterError`).
+
+```javascript
+const multer = require('multer')
+const upload = multer().single('avatar')
+
+app.post('/profile', function (req, res) {
+  upload(req, res, function (err) {
+    if (err instanceof multer.MulterError) {
+      // A Multer error occurred when uploading.
+    } else if (err) {
+      // An unknown error occurred when uploading.
+    }
+
+    // Everything went fine.
+  })
+})
+```
+
+## Custom storage engine
+
+For information on how to build your own storage engine, see [Multer Storage Engine](https://github.com/expressjs/multer/blob/master/StorageEngine.md).
+
+## License
+
+[MIT](LICENSE)
diff --git a/backend/node_modules/multer/index.js b/backend/node_modules/multer/index.js
new file mode 100644
index 0000000..d5b67eb
--- /dev/null
+++ b/backend/node_modules/multer/index.js
@@ -0,0 +1,104 @@
+var makeMiddleware = require('./lib/make-middleware')
+
+var diskStorage = require('./storage/disk')
+var memoryStorage = require('./storage/memory')
+var MulterError = require('./lib/multer-error')
+
+function allowAll (req, file, cb) {
+  cb(null, true)
+}
+
+function Multer (options) {
+  if (options.storage) {
+    this.storage = options.storage
+  } else if (options.dest) {
+    this.storage = diskStorage({ destination: options.dest })
+  } else {
+    this.storage = memoryStorage()
+  }
+
+  this.limits = options.limits
+  this.preservePath = options.preservePath
+  this.fileFilter = options.fileFilter || allowAll
+}
+
+Multer.prototype._makeMiddleware = function (fields, fileStrategy) {
+  function setup () {
+    var fileFilter = this.fileFilter
+    var filesLeft = Object.create(null)
+
+    fields.forEach(function (field) {
+      if (typeof field.maxCount === 'number') {
+        filesLeft[field.name] = field.maxCount
+      } else {
+        filesLeft[field.name] = Infinity
+      }
+    })
+
+    function wrappedFileFilter (req, file, cb) {
+      if ((filesLeft[file.fieldname] || 0) <= 0) {
+        return cb(new MulterError('LIMIT_UNEXPECTED_FILE', file.fieldname))
+      }
+
+      filesLeft[file.fieldname] -= 1
+      fileFilter(req, file, cb)
+    }
+
+    return {
+      limits: this.limits,
+      preservePath: this.preservePath,
+      storage: this.storage,
+      fileFilter: wrappedFileFilter,
+      fileStrategy: fileStrategy
+    }
+  }
+
+  return makeMiddleware(setup.bind(this))
+}
+
+Multer.prototype.single = function (name) {
+  return this._makeMiddleware([{ name: name, maxCount: 1 }], 'VALUE')
+}
+
+Multer.prototype.array = function (name, maxCount) {
+  return this._makeMiddleware([{ name: name, maxCount: maxCount }], 'ARRAY')
+}
+
+Multer.prototype.fields = function (fields) {
+  return this._makeMiddleware(fields, 'OBJECT')
+}
+
+Multer.prototype.none = function () {
+  return this._makeMiddleware([], 'NONE')
+}
+
+Multer.prototype.any = function () {
+  function setup () {
+    return {
+      limits: this.limits,
+      preservePath: this.preservePath,
+      storage: this.storage,
+      fileFilter: this.fileFilter,
+      fileStrategy: 'ARRAY'
+    }
+  }
+
+  return makeMiddleware(setup.bind(this))
+}
+
+function multer (options) {
+  if (options === undefined) {
+    return new Multer({})
+  }
+
+  if (typeof options === 'object' && options !== null) {
+    return new Multer(options)
+  }
+
+  throw new TypeError('Expected object for argument options')
+}
+
+module.exports = multer
+module.exports.diskStorage = diskStorage
+module.exports.memoryStorage = memoryStorage
+module.exports.MulterError = MulterError
diff --git a/backend/node_modules/multer/lib/counter.js b/backend/node_modules/multer/lib/counter.js
new file mode 100644
index 0000000..29c410c
--- /dev/null
+++ b/backend/node_modules/multer/lib/counter.js
@@ -0,0 +1,28 @@
+var EventEmitter = require('events').EventEmitter
+
+function Counter () {
+  EventEmitter.call(this)
+  this.value = 0
+}
+
+Counter.prototype = Object.create(EventEmitter.prototype)
+
+Counter.prototype.increment = function increment () {
+  this.value++
+}
+
+Counter.prototype.decrement = function decrement () {
+  if (--this.value === 0) this.emit('zero')
+}
+
+Counter.prototype.isZero = function isZero () {
+  return (this.value === 0)
+}
+
+Counter.prototype.onceZero = function onceZero (fn) {
+  if (this.isZero()) return fn()
+
+  this.once('zero', fn)
+}
+
+module.exports = Counter
diff --git a/backend/node_modules/multer/lib/file-appender.js b/backend/node_modules/multer/lib/file-appender.js
new file mode 100644
index 0000000..1a2c5e7
--- /dev/null
+++ b/backend/node_modules/multer/lib/file-appender.js
@@ -0,0 +1,67 @@
+var objectAssign = require('object-assign')
+
+function arrayRemove (arr, item) {
+  var idx = arr.indexOf(item)
+  if (~idx) arr.splice(idx, 1)
+}
+
+function FileAppender (strategy, req) {
+  this.strategy = strategy
+  this.req = req
+
+  switch (strategy) {
+    case 'NONE': break
+    case 'VALUE': break
+    case 'ARRAY': req.files = []; break
+    case 'OBJECT': req.files = Object.create(null); break
+    default: throw new Error('Unknown file strategy: ' + strategy)
+  }
+}
+
+FileAppender.prototype.insertPlaceholder = function (file) {
+  var placeholder = {
+    fieldname: file.fieldname
+  }
+
+  switch (this.strategy) {
+    case 'NONE': break
+    case 'VALUE': break
+    case 'ARRAY': this.req.files.push(placeholder); break
+    case 'OBJECT':
+      if (this.req.files[file.fieldname]) {
+        this.req.files[file.fieldname].push(placeholder)
+      } else {
+        this.req.files[file.fieldname] = [placeholder]
+      }
+      break
+  }
+
+  return placeholder
+}
+
+FileAppender.prototype.removePlaceholder = function (placeholder) {
+  switch (this.strategy) {
+    case 'NONE': break
+    case 'VALUE': break
+    case 'ARRAY': arrayRemove(this.req.files, placeholder); break
+    case 'OBJECT':
+      if (this.req.files[placeholder.fieldname].length === 1) {
+        delete this.req.files[placeholder.fieldname]
+      } else {
+        arrayRemove(this.req.files[placeholder.fieldname], placeholder)
+      }
+      break
+  }
+}
+
+FileAppender.prototype.replacePlaceholder = function (placeholder, file) {
+  if (this.strategy === 'VALUE') {
+    this.req.file = file
+    return
+  }
+
+  delete placeholder.fieldname
+  objectAssign(placeholder, file)
+}
+
+module.exports = FileAppender
diff --git a/backend/node_modules/multer/lib/make-middleware.js b/backend/node_modules/multer/lib/make-middleware.js
new file mode 100644
index 0000000..6627cf4
--- /dev/null
+++ b/backend/node_modules/multer/lib/make-middleware.js
@@ -0,0 +1,173 @@
+var is = require('type-is')
+var Busboy = require('busboy')
+var extend = require('xtend')
+var appendField = require('append-field')
+
+var Counter = require('./counter')
+var MulterError = require('./multer-error')
+var FileAppender = require('./file-appender')
+var removeUploadedFiles = require('./remove-uploaded-files')
+
+function makeMiddleware (setup) {
+  return function multerMiddleware (req, res, next) {
+    if (!is(req, ['multipart'])) return next()
+
+    var options = setup()
+
+    var limits = options.limits
+    var storage = options.storage
+    var fileFilter = options.fileFilter
+    var fileStrategy = options.fileStrategy
+    var preservePath = options.preservePath
+
+    req.body = Object.create(null)
+
+    var busboy
+
+    try {
+      busboy = Busboy({ headers: req.headers, limits: limits, preservePath: preservePath })
+    } catch (err) {
+      return next(err)
+    }
+
+    var appender = new FileAppender(fileStrategy, req)
+    var isDone = false
+    var readFinished = false
+    var errorOccured = false
+    var pendingWrites = new Counter()
+    var uploadedFiles = []
+
+    function done (err) {
+      if (isDone) return
+      isDone = true
+      req.unpipe(busboy)
+      busboy.removeAllListeners()
+      next(err)
+    }
+
+    function indicateDone () {
+      if (readFinished && pendingWrites.isZero() && !errorOccured) done()
+    }
+
+    function abortWithError (uploadError) {
+      if (errorOccured) return
+      errorOccured = true
+
+      pendingWrites.onceZero(function () {
+        function remove (file, cb) {
+          storage._removeFile(req, file, cb)
+        }
+
+        removeUploadedFiles(uploadedFiles, remove, function (err, storageErrors) {
+          if (err) return done(err)
+
+          uploadError.storageErrors = storageErrors
+          done(uploadError)
+        })
+      })
+    }
+
+    function abortWithCode (code, optionalField) {
+      abortWithError(new MulterError(code, optionalField))
+    }
+
+    // handle text field data
+    busboy.on('field', function (fieldname, value, { nameTruncated, valueTruncated }) {
+      if (fieldname == null) return abortWithCode('MISSING_FIELD_NAME')
+      if (nameTruncated) return abortWithCode('LIMIT_FIELD_KEY')
+      if (valueTruncated) return abortWithCode('LIMIT_FIELD_VALUE', fieldname)
+
+      // Work around bug in Busboy (https://github.com/mscdex/busboy/issues/6)
+      if (limits && Object.prototype.hasOwnProperty.call(limits, 'fieldNameSize')) {
+        if (fieldname.length > limits.fieldNameSize) return abortWithCode('LIMIT_FIELD_KEY')
+      }
+
+      appendField(req.body, fieldname, value)
+    })
+
+    // handle files
+    busboy.on('file', function (fieldname, fileStream, { filename, encoding, mimeType }) {
+      // don't attach to the files object, if there is no file
+      if (!filename) return fileStream.resume()
+
+      // Work around bug in Busboy (https://github.com/mscdex/busboy/issues/6)
+      if (limits && Object.prototype.hasOwnProperty.call(limits, 'fieldNameSize')) {
+        if (fieldname.length > limits.fieldNameSize) return abortWithCode('LIMIT_FIELD_KEY')
+      }
+
+      var file = {
+        fieldname: fieldname,
+        originalname: filename,
+        encoding: encoding,
+        mimetype: mimeType
+      }
+
+      var placeholder = appender.insertPlaceholder(file)
+
+      fileFilter(req, file, function (err, includeFile) {
+        if (err) {
+          appender.removePlaceholder(placeholder)
+          return abortWithError(err)
+        }
+
+        if (!includeFile) {
+          appender.removePlaceholder(placeholder)
+          return fileStream.resume()
+        }
+
+        var aborting = false
+        pendingWrites.increment()
+
+        Object.defineProperty(file, 'stream', {
+          configurable: true,
+          enumerable: false,
+          value: fileStream
+        })
+
+        fileStream.on('error', function (err) {
+          pendingWrites.decrement()
+          abortWithError(err)
+        })
+
+        fileStream.on('limit', function () {
+          aborting = true
+          abortWithCode('LIMIT_FILE_SIZE', fieldname)
+        })
+
+        storage._handleFile(req, file, function (err, info) {
+          if (aborting) {
+            appender.removePlaceholder(placeholder)
+            uploadedFiles.push(extend(file, info))
+            return pendingWrites.decrement()
+          }
+
+          if (err) {
+            appender.removePlaceholder(placeholder)
+            pendingWrites.decrement()
+            return abortWithError(err)
+          }
+
+          var fileInfo = extend(file, info)
+
+          appender.replacePlaceholder(placeholder, fileInfo)
+          uploadedFiles.push(fileInfo)
+          pendingWrites.decrement()
+          indicateDone()
+        })
+      })
+    })
+
+    busboy.on('error', function (err) { abortWithError(err) })
+    busboy.on('partsLimit', function () { abortWithCode('LIMIT_PART_COUNT') })
+    busboy.on('filesLimit', function () { abortWithCode('LIMIT_FILE_COUNT') })
+    busboy.on('fieldsLimit', function () { abortWithCode('LIMIT_FIELD_COUNT') })
+    busboy.on('close', function () {
+      readFinished = true
+      indicateDone()
+    })
+
+    req.pipe(busboy)
+  }
+}
+
+module.exports = makeMiddleware
diff --git a/backend/node_modules/multer/lib/multer-error.js b/backend/node_modules/multer/lib/multer-error.js
new file mode 100644
index 0000000..d56b00e
--- /dev/null
+++ b/backend/node_modules/multer/lib/multer-error.js
@@ -0,0 +1,24 @@
+var util = require('util')
+
+var errorMessages = {
+  LIMIT_PART_COUNT: 'Too many parts',
+  LIMIT_FILE_SIZE: 'File too large',
+  LIMIT_FILE_COUNT: 'Too many files',
+  LIMIT_FIELD_KEY: 'Field name too long',
+  LIMIT_FIELD_VALUE: 'Field value too long',
+  LIMIT_FIELD_COUNT: 'Too many fields',
+  LIMIT_UNEXPECTED_FILE: 'Unexpected field',
+  MISSING_FIELD_NAME: 'Field name missing'
+}
+
+function MulterError (code, field) {
+  Error.captureStackTrace(this, this.constructor)
+  this.name = this.constructor.name
+  this.message = errorMessages[code]
+  this.code = code
+  if (field) this.field = field
+}
+
+util.inherits(MulterError, Error)
+
+module.exports = MulterError
diff --git a/backend/node_modules/multer/lib/remove-uploaded-files.js b/backend/node_modules/multer/lib/remove-uploaded-files.js
new file mode 100644
index 0000000..f0b16ea
--- /dev/null
+++ b/backend/node_modules/multer/lib/remove-uploaded-files.js
@@ -0,0 +1,28 @@
+function removeUploadedFiles (uploadedFiles, remove, cb) {
+  var length = uploadedFiles.length
+  var errors = []
+
+  if (length === 0) return cb(null, errors)
+
+  function handleFile (idx) {
+    var file = uploadedFiles[idx]
+
+    remove(file, function (err) {
+      if (err) {
+        err.file = file
+        err.field = file.fieldname
+        errors.push(err)
+      }
+
+      if (idx < length - 1) {
+        handleFile(idx + 1)
+      } else {
+        cb(null, errors)
+      }
+    })
+  }
+
+  handleFile(0)
+}
+
+module.exports = removeUploadedFiles
diff --git a/backend/node_modules/multer/package.json b/backend/node_modules/multer/package.json
new file mode 100644
index 0000000..8545a73
--- /dev/null
+++ b/backend/node_modules/multer/package.json
@@ -0,0 +1,52 @@
+{
+  "name": "multer",
+  "description": "Middleware for handling `multipart/form-data`.",
+  "version": "1.4.5-lts.1",
+  "contributors": [
+    "Hage Yaapa <captain@hacksparrow.com> (http://www.hacksparrow.com)",
+    "Jaret Pfluger <https://github.com/jpfluger>",
+    "Linus Unnebäck <linus@folkdatorn.se>"
+  ],
+  "license": "MIT",
+  "repository": "expressjs/multer",
+  "keywords": [
+    "form",
+    "post",
+    "multipart",
+    "form-data",
+    "formdata",
+    "express",
+    "middleware"
+  ],
+  "dependencies": {
+    "append-field": "^1.0.0",
+    "busboy": "^1.0.0",
+    "concat-stream": "^1.5.2",
+    "mkdirp": "^0.5.4",
+    "object-assign": "^4.1.1",
+    "type-is": "^1.6.4",
+    "xtend": "^4.0.0"
+  },
+  "devDependencies": {
+    "deep-equal": "^2.0.3",
+    "express": "^4.13.1",
+    "form-data": "^1.0.0-rc1",
+    "fs-temp": "^1.1.2",
+    "mocha": "^3.5.3",
+    "rimraf": "^2.4.1",
+    "standard": "^14.3.3",
+    "testdata-w3c-json-form": "^1.0.0"
+  },
+  "engines": {
+    "node": ">= 6.0.0"
+  },
+  "files": [
+    "LICENSE",
+    "index.js",
+    "storage/",
+    "lib/"
+  ],
+  "scripts": {
+    "test": "standard && mocha"
+  }
+}
diff --git a/backend/node_modules/multer/storage/disk.js b/backend/node_modules/multer/storage/disk.js
new file mode 100644
index 0000000..2f77c9f
--- /dev/null
+++ b/backend/node_modules/multer/storage/disk.js
@@ -0,0 +1,66 @@
+var fs = require('fs')
+var os = require('os')
+var path = require('path')
+var crypto = require('crypto')
+var mkdirp = require('mkdirp')
+
+function getFilename (req, file, cb) {
+  crypto.randomBytes(16, function (err, raw) {
+    cb(err, err ? undefined : raw.toString('hex'))
+  })
+}
+
+function getDestination (req, file, cb) {
+  cb(null, os.tmpdir())
+}
+
+function DiskStorage (opts) {
+  this.getFilename = (opts.filename || getFilename)
+
+  if (typeof opts.destination === 'string') {
+    mkdirp.sync(opts.destination)
+    this.getDestination = function ($0, $1, cb) { cb(null, opts.destination) }
+  } else {
+    this.getDestination = (opts.destination || getDestination)
+  }
+}
+
+DiskStorage.prototype._handleFile = function _handleFile (req, file, cb) {
+  var that = this
+
+  that.getDestination(req, file, function (err, destination) {
+    if (err) return cb(err)
+
+    that.getFilename(req, file, function (err, filename) {
+      if (err) return cb(err)
+
+      var finalPath = path.join(destination, filename)
+      var outStream = fs.createWriteStream(finalPath)
+
+      file.stream.pipe(outStream)
+      outStream.on('error', cb)
+      outStream.on('finish', function () {
+        cb(null, {
+          destination: destination,
+          filename: filename,
+          path: finalPath,
+          size: outStream.bytesWritten
+        })
+      })
+    })
+  })
+}
+
+DiskStorage.prototype._removeFile = function _removeFile (req, file, cb) {
+  var path = file.path
+
+  delete file.destination
+  delete file.filename
+  delete file.path
+
+  fs.unlink(path, cb)
+}
+
+module.exports = function (opts) {
+  return new DiskStorage(opts)
+}
diff --git a/backend/node_modules/multer/storage/memory.js b/backend/node_modules/multer/storage/memory.js
new file mode 100644
index 0000000..f953ded
--- /dev/null
+++ b/backend/node_modules/multer/storage/memory.js
@@ -0,0 +1,21 @@
+var concat = require('concat-stream')
+
+function MemoryStorage (opts) {}
+
+MemoryStorage.prototype._handleFile = function _handleFile (req, file, cb) {
+  file.stream.pipe(concat({ encoding: 'buffer' }, function (data) {
+    cb(null, {
+      buffer: data,
+      size: data.length
+    })
+  }))
+}
+
+MemoryStorage.prototype._removeFile = function _removeFile (req, file, cb) {
+  delete file.buffer
+  cb(null)
+}
+
+module.exports = function (opts) {
+  return new MemoryStorage(opts)
+}
diff --git a/backend/node_modules/negotiator/HISTORY.md b/backend/node_modules/negotiator/HISTORY.md
new file mode 100644
index 0000000..a9a5449
--- /dev/null
+++ b/backend/node_modules/negotiator/HISTORY.md
@@ -0,0 +1,108 @@
+0.6.3 / 2022-01-22
+==================
+
+  * Revert "Lazy-load modules from main entry point"
+
+0.6.2 / 2019-04-29
+==================
+
+  * Fix sorting charset, encoding, and language with extra parameters
+
+0.6.1 / 2016-05-02
+==================
+
+  * perf: improve `Accept` parsing speed
+  * perf: improve `Accept-Charset` parsing speed
+  * perf: improve `Accept-Encoding` parsing speed
+  * perf: improve `Accept-Language` parsing speed
+
+0.6.0 / 2015-09-29
+==================
+
+  * Fix including type extensions in parameters in `Accept` parsing
+  * Fix parsing `Accept` parameters with quoted equals
+  * Fix parsing `Accept` parameters with quoted semicolons
+  * Lazy-load modules from main entry point
+  * perf: delay type concatenation until needed
+  * perf: enable strict mode
+  * perf: hoist regular expressions
+  * perf: remove closures getting spec properties
+  * perf: remove a closure from media type parsing
+  * perf: remove property delete from media type parsing
+
+0.5.3 / 2015-05-10
+==================
+
+  * Fix media type parameter matching to be case-insensitive
+
+0.5.2 / 2015-05-06
+==================
+
+  * Fix comparing media types with quoted values
+  * Fix splitting media types with quoted commas
+
+0.5.1 / 2015-02-14
+==================
+
+  * Fix preference sorting to be stable for long acceptable lists
+
+0.5.0 / 2014-12-18
+==================
+
+  * Fix list return order when large accepted list
+  * Fix missing identity encoding when q=0 exists
+  * Remove dynamic building of Negotiator class
+
+0.4.9 / 2014-10-14
+==================
+
+  * Fix error when media type has invalid parameter
+
+0.4.8 / 2014-09-28
+==================
+
+  * Fix all negotiations to be case-insensitive
+  * Stable sort preferences of same quality according to client order
+  * Support Node.js 0.6
+
+0.4.7 / 2014-06-24
+==================
+
+  * Handle invalid provided languages
+  * Handle invalid provided media types
+
+0.4.6 / 2014-06-11
+==================
+
+  *  Order by specificity when quality is the same
+
+0.4.5 / 2014-05-29
+==================
+
+  * Fix regression in empty header handling
+
+0.4.4 / 2014-05-29
+==================
+
+  * Fix behaviors when headers are not present
+
+0.4.3 / 2014-04-16
+==================
+
+  * Handle slashes on media params correctly
+
+0.4.2 / 2014-02-28
+==================
+
+  * Fix media type sorting
+  * Handle media types params strictly
+
+0.4.1 / 2014-01-16
+==================
+
+  * Use most specific matches
+
+0.4.0 / 2014-01-09
+==================
+
+  * Remove preferred prefix from methods
diff --git a/backend/node_modules/negotiator/LICENSE b/backend/node_modules/negotiator/LICENSE
new file mode 100644
index 0000000..ea6b9e2
--- /dev/null
+++ b/backend/node_modules/negotiator/LICENSE
@@ -0,0 +1,24 @@
+(The MIT License)
+
+Copyright (c) 2012-2014 Federico Romero
+Copyright (c) 2012-2014 Isaac Z. Schlueter
+Copyright (c) 2014-2015 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/negotiator/README.md b/backend/node_modules/negotiator/README.md
new file mode 100644
index 0000000..82915e5
--- /dev/null
+++ b/backend/node_modules/negotiator/README.md
@@ -0,0 +1,203 @@
+# negotiator
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][github-actions-ci-image]][github-actions-ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+An HTTP content negotiator for Node.js
+
+## Installation
+
+```sh
+$ npm install negotiator
+```
+
+## API
+
+```js
+var Negotiator = require('negotiator')
+```
+
+### Accept Negotiation
+
+```js
+availableMediaTypes = ['text/html', 'text/plain', 'application/json']
+
+// The negotiator constructor receives a request object
+negotiator = new Negotiator(request)
+
+// Let's say Accept header is 'text/html, application/*;q=0.2, image/jpeg;q=0.8'
+
+negotiator.mediaTypes()
+// -> ['text/html', 'image/jpeg', 'application/*']
+
+negotiator.mediaTypes(availableMediaTypes)
+// -> ['text/html', 'application/json']
+
+negotiator.mediaType(availableMediaTypes)
+// -> 'text/html'
+```
+
+You can check a working example at `examples/accept.js`.
+
+#### Methods
+
+##### mediaType()
+
+Returns the most preferred media type from the client.
+
+##### mediaType(availableMediaType)
+
+Returns the most preferred media type from a list of available media types.
+
+##### mediaTypes()
+
+Returns an array of preferred media types ordered by the client preference.
+
+##### mediaTypes(availableMediaTypes)
+
+Returns an array of preferred media types ordered by priority from a list of
+available media types.
+
+### Accept-Language Negotiation
+
+```js
+negotiator = new Negotiator(request)
+
+availableLanguages = ['en', 'es', 'fr']
+
+// Let's say Accept-Language header is 'en;q=0.8, es, pt'
+
+negotiator.languages()
+// -> ['es', 'pt', 'en']
+
+negotiator.languages(availableLanguages)
+// -> ['es', 'en']
+
+language = negotiator.language(availableLanguages)
+// -> 'es'
+```
+
+You can check a working example at `examples/language.js`.
+
+#### Methods
+
+##### language()
+
+Returns the most preferred language from the client.
+
+##### language(availableLanguages)
+
+Returns the most preferred language from a list of available languages.
+
+##### languages()
+
+Returns an array of preferred languages ordered by the client preference.
+
+##### languages(availableLanguages)
+
+Returns an array of preferred languages ordered by priority from a list of
+available languages.
+
+### Accept-Charset Negotiation
+
+```js
+availableCharsets = ['utf-8', 'iso-8859-1', 'iso-8859-5']
+
+negotiator = new Negotiator(request)
+
+// Let's say Accept-Charset header is 'utf-8, iso-8859-1;q=0.8, utf-7;q=0.2'
+
+negotiator.charsets()
+// -> ['utf-8', 'iso-8859-1', 'utf-7']
+
+negotiator.charsets(availableCharsets)
+// -> ['utf-8', 'iso-8859-1']
+
+negotiator.charset(availableCharsets)
+// -> 'utf-8'
+```
+
+You can check a working example at `examples/charset.js`.
+
+#### Methods
+
+##### charset()
+
+Returns the most preferred charset from the client.
+
+##### charset(availableCharsets)
+
+Returns the most preferred charset from a list of available charsets.
+
+##### charsets()
+
+Returns an array of preferred charsets ordered by the client preference.
+
+##### charsets(availableCharsets)
+
+Returns an array of preferred charsets ordered by priority from a list of
+available charsets.
+
+### Accept-Encoding Negotiation
+
+```js
+availableEncodings = ['identity', 'gzip']
+
+negotiator = new Negotiator(request)
+
+// Let's say Accept-Encoding header is 'gzip, compress;q=0.2, identity;q=0.5'
+
+negotiator.encodings()
+// -> ['gzip', 'identity', 'compress']
+
+negotiator.encodings(availableEncodings)
+// -> ['gzip', 'identity']
+
+negotiator.encoding(availableEncodings)
+// -> 'gzip'
+```
+
+You can check a working example at `examples/encoding.js`.
+
+#### Methods
+
+##### encoding()
+
+Returns the most preferred encoding from the client.
+
+##### encoding(availableEncodings)
+
+Returns the most preferred encoding from a list of available encodings.
+
+##### encodings()
+
+Returns an array of preferred encodings ordered by the client preference.
+
+##### encodings(availableEncodings)
+
+Returns an array of preferred encodings ordered by priority from a list of
+available encodings.
+
+## See Also
+
+The [accepts](https://npmjs.org/package/accepts#readme) module builds on
+this module and provides an alternative interface, mime type validation,
+and more.
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/negotiator.svg
+[npm-url]: https://npmjs.org/package/negotiator
+[node-version-image]: https://img.shields.io/node/v/negotiator.svg
+[node-version-url]: https://nodejs.org/en/download/
+[coveralls-image]: https://img.shields.io/coveralls/jshttp/negotiator/master.svg
+[coveralls-url]: https://coveralls.io/r/jshttp/negotiator?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/negotiator.svg
+[downloads-url]: https://npmjs.org/package/negotiator
+[github-actions-ci-image]: https://img.shields.io/github/workflow/status/jshttp/negotiator/ci/master?label=ci
+[github-actions-ci-url]: https://github.com/jshttp/negotiator/actions/workflows/ci.yml
diff --git a/backend/node_modules/negotiator/index.js b/backend/node_modules/negotiator/index.js
new file mode 100644
index 0000000..4788264
--- /dev/null
+++ b/backend/node_modules/negotiator/index.js
@@ -0,0 +1,82 @@
+/*!
+ * negotiator
+ * Copyright(c) 2012 Federico Romero
+ * Copyright(c) 2012-2014 Isaac Z. Schlueter
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+var preferredCharsets = require('./lib/charset')
+var preferredEncodings = require('./lib/encoding')
+var preferredLanguages = require('./lib/language')
+var preferredMediaTypes = require('./lib/mediaType')
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = Negotiator;
+module.exports.Negotiator = Negotiator;
+
+/**
+ * Create a Negotiator instance from a request.
+ * @param {object} request
+ * @public
+ */
+
+function Negotiator(request) {
+  if (!(this instanceof Negotiator)) {
+    return new Negotiator(request);
+  }
+
+  this.request = request;
+}
+
+Negotiator.prototype.charset = function charset(available) {
+  var set = this.charsets(available);
+  return set && set[0];
+};
+
+Negotiator.prototype.charsets = function charsets(available) {
+  return preferredCharsets(this.request.headers['accept-charset'], available);
+};
+
+Negotiator.prototype.encoding = function encoding(available) {
+  var set = this.encodings(available);
+  return set && set[0];
+};
+
+Negotiator.prototype.encodings = function encodings(available) {
+  return preferredEncodings(this.request.headers['accept-encoding'], available);
+};
+
+Negotiator.prototype.language = function language(available) {
+  var set = this.languages(available);
+  return set && set[0];
+};
+
+Negotiator.prototype.languages = function languages(available) {
+  return preferredLanguages(this.request.headers['accept-language'], available);
+};
+
+Negotiator.prototype.mediaType = function mediaType(available) {
+  var set = this.mediaTypes(available);
+  return set && set[0];
+};
+
+Negotiator.prototype.mediaTypes = function mediaTypes(available) {
+  return preferredMediaTypes(this.request.headers.accept, available);
+};
+
+// Backwards compatibility
+Negotiator.prototype.preferredCharset = Negotiator.prototype.charset;
+Negotiator.prototype.preferredCharsets = Negotiator.prototype.charsets;
+Negotiator.prototype.preferredEncoding = Negotiator.prototype.encoding;
+Negotiator.prototype.preferredEncodings = Negotiator.prototype.encodings;
+Negotiator.prototype.preferredLanguage = Negotiator.prototype.language;
+Negotiator.prototype.preferredLanguages = Negotiator.prototype.languages;
+Negotiator.prototype.preferredMediaType = Negotiator.prototype.mediaType;
+Negotiator.prototype.preferredMediaTypes = Negotiator.prototype.mediaTypes;
diff --git a/backend/node_modules/negotiator/lib/charset.js b/backend/node_modules/negotiator/lib/charset.js
new file mode 100644
index 0000000..cdd0148
--- /dev/null
+++ b/backend/node_modules/negotiator/lib/charset.js
@@ -0,0 +1,169 @@
+/**
+ * negotiator
+ * Copyright(c) 2012 Isaac Z. Schlueter
+ * Copyright(c) 2014 Federico Romero
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = preferredCharsets;
+module.exports.preferredCharsets = preferredCharsets;
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var simpleCharsetRegExp = /^\s*([^\s;]+)\s*(?:;(.*))?$/;
+
+/**
+ * Parse the Accept-Charset header.
+ * @private
+ */
+
+function parseAcceptCharset(accept) {
+  var accepts = accept.split(',');
+
+  for (var i = 0, j = 0; i < accepts.length; i++) {
+    var charset = parseCharset(accepts[i].trim(), i);
+
+    if (charset) {
+      accepts[j++] = charset;
+    }
+  }
+
+  // trim accepts
+  accepts.length = j;
+
+  return accepts;
+}
+
+/**
+ * Parse a charset from the Accept-Charset header.
+ * @private
+ */
+
+function parseCharset(str, i) {
+  var match = simpleCharsetRegExp.exec(str);
+  if (!match) return null;
+
+  var charset = match[1];
+  var q = 1;
+  if (match[2]) {
+    var params = match[2].split(';')
+    for (var j = 0; j < params.length; j++) {
+      var p = params[j].trim().split('=');
+      if (p[0] === 'q') {
+        q = parseFloat(p[1]);
+        break;
+      }
+    }
+  }
+
+  return {
+    charset: charset,
+    q: q,
+    i: i
+  };
+}
+
+/**
+ * Get the priority of a charset.
+ * @private
+ */
+
+function getCharsetPriority(charset, accepted, index) {
+  var priority = {o: -1, q: 0, s: 0};
+
+  for (var i = 0; i < accepted.length; i++) {
+    var spec = specify(charset, accepted[i], index);
+
+    if (spec && (priority.s - spec.s || priority.q - spec.q || priority.o - spec.o) < 0) {
+      priority = spec;
+    }
+  }
+
+  return priority;
+}
+
+/**
+ * Get the specificity of the charset.
+ * @private
+ */
+
+function specify(charset, spec, index) {
+  var s = 0;
+  if(spec.charset.toLowerCase() === charset.toLowerCase()){
+    s |= 1;
+  } else if (spec.charset !== '*' ) {
+    return null
+  }
+
+  return {
+    i: index,
+    o: spec.i,
+    q: spec.q,
+    s: s
+  }
+}
+
+/**
+ * Get the preferred charsets from an Accept-Charset header.
+ * @public
+ */
+
+function preferredCharsets(accept, provided) {
+  // RFC 2616 sec 14.2: no header = *
+  var accepts = parseAcceptCharset(accept === undefined ? '*' : accept || '');
+
+  if (!provided) {
+    // sorted list of all charsets
+    return accepts
+      .filter(isQuality)
+      .sort(compareSpecs)
+      .map(getFullCharset);
+  }
+
+  var priorities = provided.map(function getPriority(type, index) {
+    return getCharsetPriority(type, accepts, index);
+  });
+
+  // sorted list of accepted charsets
+  return priorities.filter(isQuality).sort(compareSpecs).map(function getCharset(priority) {
+    return provided[priorities.indexOf(priority)];
+  });
+}
+
+/**
+ * Compare two specs.
+ * @private
+ */
+
+function compareSpecs(a, b) {
+  return (b.q - a.q) || (b.s - a.s) || (a.o - b.o) || (a.i - b.i) || 0;
+}
+
+/**
+ * Get full charset string.
+ * @private
+ */
+
+function getFullCharset(spec) {
+  return spec.charset;
+}
+
+/**
+ * Check if a spec has any quality.
+ * @private
+ */
+
+function isQuality(spec) {
+  return spec.q > 0;
+}
diff --git a/backend/node_modules/negotiator/lib/encoding.js b/backend/node_modules/negotiator/lib/encoding.js
new file mode 100644
index 0000000..8432cd7
--- /dev/null
+++ b/backend/node_modules/negotiator/lib/encoding.js
@@ -0,0 +1,184 @@
+/**
+ * negotiator
+ * Copyright(c) 2012 Isaac Z. Schlueter
+ * Copyright(c) 2014 Federico Romero
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = preferredEncodings;
+module.exports.preferredEncodings = preferredEncodings;
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var simpleEncodingRegExp = /^\s*([^\s;]+)\s*(?:;(.*))?$/;
+
+/**
+ * Parse the Accept-Encoding header.
+ * @private
+ */
+
+function parseAcceptEncoding(accept) {
+  var accepts = accept.split(',');
+  var hasIdentity = false;
+  var minQuality = 1;
+
+  for (var i = 0, j = 0; i < accepts.length; i++) {
+    var encoding = parseEncoding(accepts[i].trim(), i);
+
+    if (encoding) {
+      accepts[j++] = encoding;
+      hasIdentity = hasIdentity || specify('identity', encoding);
+      minQuality = Math.min(minQuality, encoding.q || 1);
+    }
+  }
+
+  if (!hasIdentity) {
+    /*
+     * If identity doesn't explicitly appear in the accept-encoding header,
+     * it's added to the list of acceptable encoding with the lowest q
+     */
+    accepts[j++] = {
+      encoding: 'identity',
+      q: minQuality,
+      i: i
+    };
+  }
+
+  // trim accepts
+  accepts.length = j;
+
+  return accepts;
+}
+
+/**
+ * Parse an encoding from the Accept-Encoding header.
+ * @private
+ */
+
+function parseEncoding(str, i) {
+  var match = simpleEncodingRegExp.exec(str);
+  if (!match) return null;
+
+  var encoding = match[1];
+  var q = 1;
+  if (match[2]) {
+    var params = match[2].split(';');
+    for (var j = 0; j < params.length; j++) {
+      var p = params[j].trim().split('=');
+      if (p[0] === 'q') {
+        q = parseFloat(p[1]);
+        break;
+      }
+    }
+  }
+
+  return {
+    encoding: encoding,
+    q: q,
+    i: i
+  };
+}
+
+/**
+ * Get the priority of an encoding.
+ * @private
+ */
+
+function getEncodingPriority(encoding, accepted, index) {
+  var priority = {o: -1, q: 0, s: 0};
+
+  for (var i = 0; i < accepted.length; i++) {
+    var spec = specify(encoding, accepted[i], index);
+
+    if (spec && (priority.s - spec.s || priority.q - spec.q || priority.o - spec.o) < 0) {
+      priority = spec;
+    }
+  }
+
+  return priority;
+}
+
+/**
+ * Get the specificity of the encoding.
+ * @private
+ */
+
+function specify(encoding, spec, index) {
+  var s = 0;
+  if(spec.encoding.toLowerCase() === encoding.toLowerCase()){
+    s |= 1;
+  } else if (spec.encoding !== '*' ) {
+    return null
+  }
+
+  return {
+    i: index,
+    o: spec.i,
+    q: spec.q,
+    s: s
+  }
+};
+
+/**
+ * Get the preferred encodings from an Accept-Encoding header.
+ * @public
+ */
+
+function preferredEncodings(accept, provided) {
+  var accepts = parseAcceptEncoding(accept || '');
+
+  if (!provided) {
+    // sorted list of all encodings
+    return accepts
+      .filter(isQuality)
+      .sort(compareSpecs)
+      .map(getFullEncoding);
+  }
+
+  var priorities = provided.map(function getPriority(type, index) {
+    return getEncodingPriority(type, accepts, index);
+  });
+
+  // sorted list of accepted encodings
+  return priorities.filter(isQuality).sort(compareSpecs).map(function getEncoding(priority) {
+    return provided[priorities.indexOf(priority)];
+  });
+}
+
+/**
+ * Compare two specs.
+ * @private
+ */
+
+function compareSpecs(a, b) {
+  return (b.q - a.q) || (b.s - a.s) || (a.o - b.o) || (a.i - b.i) || 0;
+}
+
+/**
+ * Get full encoding string.
+ * @private
+ */
+
+function getFullEncoding(spec) {
+  return spec.encoding;
+}
+
+/**
+ * Check if a spec has any quality.
+ * @private
+ */
+
+function isQuality(spec) {
+  return spec.q > 0;
+}
diff --git a/backend/node_modules/negotiator/lib/language.js b/backend/node_modules/negotiator/lib/language.js
new file mode 100644
index 0000000..a231672
--- /dev/null
+++ b/backend/node_modules/negotiator/lib/language.js
@@ -0,0 +1,179 @@
+/**
+ * negotiator
+ * Copyright(c) 2012 Isaac Z. Schlueter
+ * Copyright(c) 2014 Federico Romero
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = preferredLanguages;
+module.exports.preferredLanguages = preferredLanguages;
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var simpleLanguageRegExp = /^\s*([^\s\-;]+)(?:-([^\s;]+))?\s*(?:;(.*))?$/;
+
+/**
+ * Parse the Accept-Language header.
+ * @private
+ */
+
+function parseAcceptLanguage(accept) {
+  var accepts = accept.split(',');
+
+  for (var i = 0, j = 0; i < accepts.length; i++) {
+    var language = parseLanguage(accepts[i].trim(), i);
+
+    if (language) {
+      accepts[j++] = language;
+    }
+  }
+
+  // trim accepts
+  accepts.length = j;
+
+  return accepts;
+}
+
+/**
+ * Parse a language from the Accept-Language header.
+ * @private
+ */
+
+function parseLanguage(str, i) {
+  var match = simpleLanguageRegExp.exec(str);
+  if (!match) return null;
+
+  var prefix = match[1]
+  var suffix = match[2]
+  var full = prefix
+
+  if (suffix) full += "-" + suffix;
+
+  var q = 1;
+  if (match[3]) {
+    var params = match[3].split(';')
+    for (var j = 0; j < params.length; j++) {
+      var p = params[j].split('=');
+      if (p[0] === 'q') q = parseFloat(p[1]);
+    }
+  }
+
+  return {
+    prefix: prefix,
+    suffix: suffix,
+    q: q,
+    i: i,
+    full: full
+  };
+}
+
+/**
+ * Get the priority of a language.
+ * @private
+ */
+
+function getLanguagePriority(language, accepted, index) {
+  var priority = {o: -1, q: 0, s: 0};
+
+  for (var i = 0; i < accepted.length; i++) {
+    var spec = specify(language, accepted[i], index);
+
+    if (spec && (priority.s - spec.s || priority.q - spec.q || priority.o - spec.o) < 0) {
+      priority = spec;
+    }
+  }
+
+  return priority;
+}
+
+/**
+ * Get the specificity of the language.
+ * @private
+ */
+
+function specify(language, spec, index) {
+  var p = parseLanguage(language)
+  if (!p) return null;
+  var s = 0;
+  if(spec.full.toLowerCase() === p.full.toLowerCase()){
+    s |= 4;
+  } else if (spec.prefix.toLowerCase() === p.full.toLowerCase()) {
+    s |= 2;
+  } else if (spec.full.toLowerCase() === p.prefix.toLowerCase()) {
+    s |= 1;
+  } else if (spec.full !== '*' ) {
+    return null
+  }
+
+  return {
+    i: index,
+    o: spec.i,
+    q: spec.q,
+    s: s
+  }
+};
+
+/**
+ * Get the preferred languages from an Accept-Language header.
+ * @public
+ */
+
+function preferredLanguages(accept, provided) {
+  // RFC 2616 sec 14.4: no header = *
+  var accepts = parseAcceptLanguage(accept === undefined ? '*' : accept || '');
+
+  if (!provided) {
+    // sorted list of all languages
+    return accepts
+      .filter(isQuality)
+      .sort(compareSpecs)
+      .map(getFullLanguage);
+  }
+
+  var priorities = provided.map(function getPriority(type, index) {
+    return getLanguagePriority(type, accepts, index);
+  });
+
+  // sorted list of accepted languages
+  return priorities.filter(isQuality).sort(compareSpecs).map(function getLanguage(priority) {
+    return provided[priorities.indexOf(priority)];
+  });
+}
+
+/**
+ * Compare two specs.
+ * @private
+ */
+
+function compareSpecs(a, b) {
+  return (b.q - a.q) || (b.s - a.s) || (a.o - b.o) || (a.i - b.i) || 0;
+}
+
+/**
+ * Get full language string.
+ * @private
+ */
+
+function getFullLanguage(spec) {
+  return spec.full;
+}
+
+/**
+ * Check if a spec has any quality.
+ * @private
+ */
+
+function isQuality(spec) {
+  return spec.q > 0;
+}
diff --git a/backend/node_modules/negotiator/lib/mediaType.js b/backend/node_modules/negotiator/lib/mediaType.js
new file mode 100644
index 0000000..67309dd
--- /dev/null
+++ b/backend/node_modules/negotiator/lib/mediaType.js
@@ -0,0 +1,294 @@
+/**
+ * negotiator
+ * Copyright(c) 2012 Isaac Z. Schlueter
+ * Copyright(c) 2014 Federico Romero
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = preferredMediaTypes;
+module.exports.preferredMediaTypes = preferredMediaTypes;
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var simpleMediaTypeRegExp = /^\s*([^\s\/;]+)\/([^;\s]+)\s*(?:;(.*))?$/;
+
+/**
+ * Parse the Accept header.
+ * @private
+ */
+
+function parseAccept(accept) {
+  var accepts = splitMediaTypes(accept);
+
+  for (var i = 0, j = 0; i < accepts.length; i++) {
+    var mediaType = parseMediaType(accepts[i].trim(), i);
+
+    if (mediaType) {
+      accepts[j++] = mediaType;
+    }
+  }
+
+  // trim accepts
+  accepts.length = j;
+
+  return accepts;
+}
+
+/**
+ * Parse a media type from the Accept header.
+ * @private
+ */
+
+function parseMediaType(str, i) {
+  var match = simpleMediaTypeRegExp.exec(str);
+  if (!match) return null;
+
+  var params = Object.create(null);
+  var q = 1;
+  var subtype = match[2];
+  var type = match[1];
+
+  if (match[3]) {
+    var kvps = splitParameters(match[3]).map(splitKeyValuePair);
+
+    for (var j = 0; j < kvps.length; j++) {
+      var pair = kvps[j];
+      var key = pair[0].toLowerCase();
+      var val = pair[1];
+
+      // get the value, unwrapping quotes
+      var value = val && val[0] === '"' && val[val.length - 1] === '"'
+        ? val.substr(1, val.length - 2)
+        : val;
+
+      if (key === 'q') {
+        q = parseFloat(value);
+        break;
+      }
+
+      // store parameter
+      params[key] = value;
+    }
+  }
+
+  return {
+    type: type,
+    subtype: subtype,
+    params: params,
+    q: q,
+    i: i
+  };
+}
+
+/**
+ * Get the priority of a media type.
+ * @private
+ */
+
+function getMediaTypePriority(type, accepted, index) {
+  var priority = {o: -1, q: 0, s: 0};
+
+  for (var i = 0; i < accepted.length; i++) {
+    var spec = specify(type, accepted[i], index);
+
+    if (spec && (priority.s - spec.s || priority.q - spec.q || priority.o - spec.o) < 0) {
+      priority = spec;
+    }
+  }
+
+  return priority;
+}
+
+/**
+ * Get the specificity of the media type.
+ * @private
+ */
+
+function specify(type, spec, index) {
+  var p = parseMediaType(type);
+  var s = 0;
+
+  if (!p) {
+    return null;
+  }
+
+  if(spec.type.toLowerCase() == p.type.toLowerCase()) {
+    s |= 4
+  } else if(spec.type != '*') {
+    return null;
+  }
+
+  if(spec.subtype.toLowerCase() == p.subtype.toLowerCase()) {
+    s |= 2
+  } else if(spec.subtype != '*') {
+    return null;
+  }
+
+  var keys = Object.keys(spec.params);
+  if (keys.length > 0) {
+    if (keys.every(function (k) {
+      return spec.params[k] == '*' || (spec.params[k] || '').toLowerCase() == (p.params[k] || '').toLowerCase();
+    })) {
+      s |= 1
+    } else {
+      return null
+    }
+  }
+
+  return {
+    i: index,
+    o: spec.i,
+    q: spec.q,
+    s: s,
+  }
+}
+
+/**
+ * Get the preferred media types from an Accept header.
+ * @public
+ */
+
+function preferredMediaTypes(accept, provided) {
+  // RFC 2616 sec 14.2: no header = */*
+  var accepts = parseAccept(accept === undefined ? '*/*' : accept || '');
+
+  if (!provided) {
+    // sorted list of all types
+    return accepts
+      .filter(isQuality)
+      .sort(compareSpecs)
+      .map(getFullType);
+  }
+
+  var priorities = provided.map(function getPriority(type, index) {
+    return getMediaTypePriority(type, accepts, index);
+  });
+
+  // sorted list of accepted types
+  return priorities.filter(isQuality).sort(compareSpecs).map(function getType(priority) {
+    return provided[priorities.indexOf(priority)];
+  });
+}
+
+/**
+ * Compare two specs.
+ * @private
+ */
+
+function compareSpecs(a, b) {
+  return (b.q - a.q) || (b.s - a.s) || (a.o - b.o) || (a.i - b.i) || 0;
+}
+
+/**
+ * Get full type string.
+ * @private
+ */
+
+function getFullType(spec) {
+  return spec.type + '/' + spec.subtype;
+}
+
+/**
+ * Check if a spec has any quality.
+ * @private
+ */
+
+function isQuality(spec) {
+  return spec.q > 0;
+}
+
+/**
+ * Count the number of quotes in a string.
+ * @private
+ */
+
+function quoteCount(string) {
+  var count = 0;
+  var index = 0;
+
+  while ((index = string.indexOf('"', index)) !== -1) {
+    count++;
+    index++;
+  }
+
+  return count;
+}
+
+/**
+ * Split a key value pair.
+ * @private
+ */
+
+function splitKeyValuePair(str) {
+  var index = str.indexOf('=');
+  var key;
+  var val;
+
+  if (index === -1) {
+    key = str;
+  } else {
+    key = str.substr(0, index);
+    val = str.substr(index + 1);
+  }
+
+  return [key, val];
+}
+
+/**
+ * Split an Accept header into media types.
+ * @private
+ */
+
+function splitMediaTypes(accept) {
+  var accepts = accept.split(',');
+
+  for (var i = 1, j = 0; i < accepts.length; i++) {
+    if (quoteCount(accepts[j]) % 2 == 0) {
+      accepts[++j] = accepts[i];
+    } else {
+      accepts[j] += ',' + accepts[i];
+    }
+  }
+
+  // trim accepts
+  accepts.length = j + 1;
+
+  return accepts;
+}
+
+/**
+ * Split a string of parameters.
+ * @private
+ */
+
+function splitParameters(str) {
+  var parameters = str.split(';');
+
+  for (var i = 1, j = 0; i < parameters.length; i++) {
+    if (quoteCount(parameters[j]) % 2 == 0) {
+      parameters[++j] = parameters[i];
+    } else {
+      parameters[j] += ';' + parameters[i];
+    }
+  }
+
+  // trim parameters
+  parameters.length = j + 1;
+
+  for (var i = 0; i < parameters.length; i++) {
+    parameters[i] = parameters[i].trim();
+  }
+
+  return parameters;
+}
diff --git a/backend/node_modules/negotiator/package.json b/backend/node_modules/negotiator/package.json
new file mode 100644
index 0000000..297635f
--- /dev/null
+++ b/backend/node_modules/negotiator/package.json
@@ -0,0 +1,42 @@
+{
+  "name": "negotiator",
+  "description": "HTTP content negotiation",
+  "version": "0.6.3",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Federico Romero <federico.romero@outboxlabs.com>",
+    "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)"
+  ],
+  "license": "MIT",
+  "keywords": [
+    "http",
+    "content negotiation",
+    "accept",
+    "accept-language",
+    "accept-encoding",
+    "accept-charset"
+  ],
+  "repository": "jshttp/negotiator",
+  "devDependencies": {
+    "eslint": "7.32.0",
+    "eslint-plugin-markdown": "2.2.1",
+    "mocha": "9.1.3",
+    "nyc": "15.1.0"
+  },
+  "files": [
+    "lib/",
+    "HISTORY.md",
+    "LICENSE",
+    "index.js",
+    "README.md"
+  ],
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --check-leaks --bail test/",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
+  }
+}
diff --git a/backend/node_modules/nodemailer/.gitattributes b/backend/node_modules/nodemailer/.gitattributes
new file mode 100644
index 0000000..0318d52
--- /dev/null
+++ b/backend/node_modules/nodemailer/.gitattributes
@@ -0,0 +1,6 @@
+*.js text eol=lf
+*.txt text eol=lf
+*.html text eol=lf
+*.htm text eol=lf
+*.ics -text
+*.bin -text
\ No newline at end of file
diff --git a/backend/node_modules/nodemailer/.ncurc.js b/backend/node_modules/nodemailer/.ncurc.js
new file mode 100644
index 0000000..8133dde
--- /dev/null
+++ b/backend/node_modules/nodemailer/.ncurc.js
@@ -0,0 +1,11 @@
+module.exports = {
+    upgrade: true,
+    reject: [
+        // API changes break existing tests
+        'proxy',
+
+        // API changes
+        'eslint',
+        'eslint-config-prettier'
+    ]
+};
diff --git a/backend/node_modules/nodemailer/.prettierrc.js b/backend/node_modules/nodemailer/.prettierrc.js
new file mode 100644
index 0000000..3f83654
--- /dev/null
+++ b/backend/node_modules/nodemailer/.prettierrc.js
@@ -0,0 +1,8 @@
+module.exports = {
+    printWidth: 160,
+    tabWidth: 4,
+    singleQuote: true,
+    endOfLine: 'lf',
+    trailingComma: 'none',
+    arrowParens: 'avoid'
+};
diff --git a/backend/node_modules/nodemailer/CHANGELOG.md b/backend/node_modules/nodemailer/CHANGELOG.md
new file mode 100644
index 0000000..37eba2c
--- /dev/null
+++ b/backend/node_modules/nodemailer/CHANGELOG.md
@@ -0,0 +1,841 @@
+# CHANGELOG
+
+## [6.10.0](https://github.com/nodemailer/nodemailer/compare/v6.9.16...v6.10.0) (2025-01-23)
+
+
+### Features
+
+* **services:** add Seznam email service configuration ([#1695](https://github.com/nodemailer/nodemailer/issues/1695)) ([d1ae0a8](https://github.com/nodemailer/nodemailer/commit/d1ae0a86883ba6011a49a5bbdf076098e2e3637a))
+
+
+### Bug Fixes
+
+* **proxy:** Set error and timeout errors for proxied sockets ([aa0c99c](https://github.com/nodemailer/nodemailer/commit/aa0c99c8f25440bb3dc91f4f3448777c800604d7))
+
+## [6.9.16](https://github.com/nodemailer/nodemailer/compare/v6.9.15...v6.9.16) (2024-10-28)
+
+
+### Bug Fixes
+
+* **addressparser:** Correctly detect if user local part is attached to domain part ([f2096c5](https://github.com/nodemailer/nodemailer/commit/f2096c51b92a69ecfbcc15884c28cb2c2f00b826))
+
+## [6.9.15](https://github.com/nodemailer/nodemailer/compare/v6.9.14...v6.9.15) (2024-08-08)
+
+
+### Bug Fixes
+
+* Fix memory leak ([#1667](https://github.com/nodemailer/nodemailer/issues/1667)) ([baa28f6](https://github.com/nodemailer/nodemailer/commit/baa28f659641a4bc30360633673d851618f8e8bd))
+* **mime:** Added GeoJSON closes [#1637](https://github.com/nodemailer/nodemailer/issues/1637) ([#1665](https://github.com/nodemailer/nodemailer/issues/1665)) ([79b8293](https://github.com/nodemailer/nodemailer/commit/79b8293ad557d36f066b4675e649dd80362fd45b))
+
+## [6.9.14](https://github.com/nodemailer/nodemailer/compare/v6.9.13...v6.9.14) (2024-06-19)
+
+
+### Bug Fixes
+
+* **api:** Added support for Ethereal authentication ([56b2205](https://github.com/nodemailer/nodemailer/commit/56b22052a98de9e363f6c4d26d1512925349c3f3))
+* **services.json:** Add Email Services Provider Feishu Mail (CN) ([#1648](https://github.com/nodemailer/nodemailer/issues/1648)) ([e9e9ecc](https://github.com/nodemailer/nodemailer/commit/e9e9ecc99b352948a912868c7912b280a05178c6))
+* **services.json:** update Mailtrap host and port in well known ([#1652](https://github.com/nodemailer/nodemailer/issues/1652)) ([fc2c9ea](https://github.com/nodemailer/nodemailer/commit/fc2c9ea0b4c4f4e514143d2a138c9a23095fc827))
+* **well-known-services:** Add Loopia in well known services ([#1655](https://github.com/nodemailer/nodemailer/issues/1655)) ([21a28a1](https://github.com/nodemailer/nodemailer/commit/21a28a18fc9fdf8e0e86ddd846e54641395b2cb6))
+
+## [6.9.13](https://github.com/nodemailer/nodemailer/compare/v6.9.12...v6.9.13) (2024-03-20)
+
+
+### Bug Fixes
+
+* **tls:** Ensure servername for SMTP ([d66fdd3](https://github.com/nodemailer/nodemailer/commit/d66fdd3dccacc4bc79d697fe9009204cc8d4bde0))
+
+## [6.9.12](https://github.com/nodemailer/nodemailer/compare/v6.9.11...v6.9.12) (2024-03-08)
+
+
+### Bug Fixes
+
+* **message-generation:** Escape single quote in address names ([4ae5fad](https://github.com/nodemailer/nodemailer/commit/4ae5fadeaac70ba91abf529fcaae65f829a39101))
+
+## [6.9.11](https://github.com/nodemailer/nodemailer/compare/v6.9.10...v6.9.11) (2024-02-29)
+
+
+### Bug Fixes
+
+* **headers:** Ensure that Content-type is the bottom header ([c7cf97e](https://github.com/nodemailer/nodemailer/commit/c7cf97e5ecc83f8eee773359951df995c9945446))
+
+## [6.9.10](https://github.com/nodemailer/nodemailer/compare/v6.9.9...v6.9.10) (2024-02-22)
+
+
+### Bug Fixes
+
+* **data-uri:** Do not use regular expressions for parsing data URI schemes ([12e65e9](https://github.com/nodemailer/nodemailer/commit/12e65e975d80efe6bafe6de4590829b3b5ebb492))
+* **data-uri:** Moved all data-uri regexes to use the non-regex parseDataUri method ([edd5dfe](https://github.com/nodemailer/nodemailer/commit/edd5dfe5ce9b725f8b8ae2830797f65b2a2b0a33))
+
+## [6.9.9](https://github.com/nodemailer/nodemailer/compare/v6.9.8...v6.9.9) (2024-02-01)
+
+
+### Bug Fixes
+
+* **security:** Fix issues described in GHSA-9h6g-pr28-7cqp. Do not use eternal matching pattern if only a few occurences are expected ([dd8f5e8](https://github.com/nodemailer/nodemailer/commit/dd8f5e8a4ddc99992e31df76bcff9c590035cd4a))
+* **tests:** Use native node test runner, added code coverage support, removed grunt ([#1604](https://github.com/nodemailer/nodemailer/issues/1604)) ([be45c1b](https://github.com/nodemailer/nodemailer/commit/be45c1b299d012358d69247019391a02734d70af))
+
+## [6.9.8](https://github.com/nodemailer/nodemailer/compare/v6.9.7...v6.9.8) (2023-12-30)
+
+
+### Bug Fixes
+
+* **punycode:** do not use native punycode module ([b4d0e0c](https://github.com/nodemailer/nodemailer/commit/b4d0e0c7cc4b15bc4d9e287f91d1bcaca87508b0))
+
+## [6.9.7](https://github.com/nodemailer/nodemailer/compare/v6.9.6...v6.9.7) (2023-10-22)
+
+
+### Bug Fixes
+
+* **customAuth:** Do not require user and pass to be set for custom authentication schemes (fixes [#1584](https://github.com/nodemailer/nodemailer/issues/1584)) ([41d482c](https://github.com/nodemailer/nodemailer/commit/41d482c3f01e26111b06f3e46351b193db3fb5cb))
+
+## [6.9.6](https://github.com/nodemailer/nodemailer/compare/v6.9.5...v6.9.6) (2023-10-09)
+
+
+### Bug Fixes
+
+* **inline:** Use 'inline' as the default Content Dispostion value for embedded images ([db32c93](https://github.com/nodemailer/nodemailer/commit/db32c93fefee527bcc239f13056e5d9181a4d8af))
+* **tests:** Removed Node v12 from test matrix as it is not compatible with the test framework anymore ([7fe0a60](https://github.com/nodemailer/nodemailer/commit/7fe0a608ed6bcb70dc6b2de543ebfc3a30abf984))
+
+## [6.9.5](https://github.com/nodemailer/nodemailer/compare/v6.9.4...v6.9.5) (2023-09-06)
+
+
+### Bug Fixes
+
+* **license:** Updated license year ([da4744e](https://github.com/nodemailer/nodemailer/commit/da4744e491f3a68f4f68e4073684370592630e01))
+
+## 6.9.4 2023-07-19
+
+-   Renamed SendinBlue to Brevo
+
+## 6.9.3 2023-05-29
+
+-   Specified license identifier (was defined as MIT, actual value MIT-0)
+-   If SMTP server disconnects with a message, process it and include as part of the response error
+
+## 6.9.2 2023-05-11
+
+-   Fix uncaught exception on invalid attachment content payload
+
+## 6.9.1 2023-01-27
+
+-   Fix base64 encoding for emoji bytes in encoded words
+
+## 6.9.0 2023-01-12
+
+-   Do not throw if failed to resolve IPv4 addresses
+-   Include EHLO extensions in the send response
+-   fix sendMail function: callback should be optional
+
+## 6.8.0 2022-09-28
+
+-   Add DNS timeout (huksley)
+-   add dns.REFUSED (lucagianfelici)
+
+## 6.7.8 2022-08-11
+
+-   Allow to use multiple Reply-To addresses
+
+## 6.7.7 2022-07-06
+
+-   Resolver fixes
+
+## 6.7.5 2022-05-04
+
+-   No changes, pushing a new README to npmjs.org
+
+## 6.7.4 2022-04-29
+
+-   Ensure compatibility with Node 18
+-   Replaced Travis with Github Actions
+
+## 6.7.3 2022-03-21
+
+-   Typo fixes
+-   Added stale issue automation fir Github
+-   Add Infomaniak config to well known service (popod)
+-   Update Outlook/Hotmail host in well known services (popod)
+-   fix: DSN recipient gets ignored (KornKalle)
+
+## 6.7.2 2021-11-26
+
+-   Fix proxies for account verification
+
+## 6.7.1 2021-11-15
+
+-   fix verify on ses-transport (stanofsky)
+
+## 6.7.0 2021-10-11
+
+-   Updated DNS resolving logic. If there are multiple responses for a A/AAAA record, then loop these randomly instead of only caching the first one
+
+## 6.6.5 2021-09-23
+
+-   Replaced Object.values() and Array.flat() with polyfills to allow using Nodemailer in Node v6+
+
+## 6.6.4 2021-09-22
+
+-   Better compatibility with IPv6-only SMTP hosts (oxzi)
+-   Fix ses verify for sdk v3 (hannesvdvreken)
+-   Added SECURITY.txt for contact info
+
+## 6.6.3 2021-07-14
+
+-   Do not show passwords in SMTP transaction logs. All passwords used in logging are replaced by `"/* secret */"`
+
+## 6.6.1 2021-05-23
+
+-   Fixed address formatting issue where newlines in an email address, if provided via address object, were not properly removed. Reported by tmazeika (#1289)
+
+## 6.6.0 2021-04-28
+
+-   Added new option `newline` for MailComposer
+-   aws ses connection verification (Ognjen Jevremovic)
+
+## 6.5.0 2021-02-26
+
+-   Pass through textEncoding to subnodes
+-   Added support for AWS SES v3 SDK
+-   Fixed tests
+
+## 6.4.18 2021-02-11
+
+-   Updated README
+
+## 6.4.17 2020-12-11
+
+-   Allow mixing attachments with caendar alternatives
+
+## 6.4.16 2020-11-12
+
+-   Applied updated prettier formating rules
+
+## 6.4.15 2020-11-06
+
+-   Minor changes in header key casing
+
+## 6.4.14 2020-10-14
+
+-   Disabled postinstall script
+
+## 6.4.13 2020-10-02
+
+-   Fix normalizeHeaderKey method for single node messages
+
+## 6.4.12 2020-09-30
+
+-   Better handling of attachment filenames that include quote symbols
+-   Includes all information from the oath2 error response in the error message (Normal Gaussian) [1787f227]
+
+## 6.4.11 2020-07-29
+
+-   Fixed escape sequence handling in address parsing
+
+## 6.4.10 2020-06-17
+
+-   Fixed RFC822 output for MailComposer when using invalid content-type value. Mostly relevant if message attachments have stragne content-type values set.
+
+## 6.4.7 2020-05-28
+
+-   Always set charset=utf-8 for Content-Type headers
+-   Catch error when using invalid crypto.sign input
+
+## 6.4.6 2020-03-20
+
+-   fix: `requeueAttempts=n` should requeue `n` times (Patrick Malouin) [a27ed2f7]
+
+## 6.4.4 2020-03-01
+
+-   Add `options.forceAuth` for SMTP (Patrick Malouin) [a27ed2f7]
+
+## 6.4.3 2020-02-22
+
+-   Added an option to specify max number of requeues when connection closes unexpectedly (Igor Sechyn) [8a927f5a]
+
+## 6.4.2 2019-12-11
+
+-   Fixed bug where array item was used with a potentially empty array
+
+## 6.4.1 2019-12-07
+
+-   Fix processing server output with unterminated responses
+
+## 6.4.0 2019-12-04
+
+-   Do not use auth if server does not advertise AUTH support [f419b09d]
+-   add dns.CONNREFUSED (Hiroyuki Okada) [5c4c8ca8]
+
+## 6.3.1 2019-10-09
+
+-   Ignore "end" events because it might be "error" after it (dex4er) [72bade9]
+-   Set username and password on the connection proxy object correctly (UsamaAshraf) [250b1a8]
+-   Support more DNS errors (madarche) [2391aa4]
+
+## 6.3.0 2019-07-14
+
+-   Added new option to pass a set of httpHeaders to be sent when fetching attachments. See [PR #1034](https://github.com/nodemailer/nodemailer/pull/1034)
+
+## 6.2.1 2019-05-24
+
+-   No changes. It is the same as 6.2.0 that was accidentally published as 6.2.1 to npm
+
+## 6.2.0 2019-05-24
+
+-   Added new option for addressparser: `flatten`. If true then ignores group names and returns a single list of all addresses
+
+## 6.1.1 2019-04-20
+
+-   Fixed regression bug with missing smtp `authMethod` property
+
+## 6.1.0 2019-04-06
+
+-   Added new message property `amp` for providing AMP4EMAIL content
+
+## 6.0.0 2019-03-25
+
+-   SMTPConnection: use removeListener instead of removeAllListeners (xr0master) [ddc4af15]
+    Using removeListener should fix memory leak with Node.js streams
+
+## 5.1.1 2019-01-09
+
+-   Added missing option argument for custom auth
+
+## 5.1.0 2019-01-09
+
+-   Official support for custom authentication methods and examples (examples/custom-auth-async.js and examples/custom-auth-cb.js)
+
+## 5.0.1 2019-01-09
+
+-   Fixed regression error to support Node versions lower than 6.11
+-   Added expiremental custom authentication support
+
+## 5.0.0 2018-12-28
+
+-   Start using dns.resolve() instead of dns.lookup() for resolving SMTP hostnames. Might be breaking change on some environments so upgrade with care
+-   Show more logs for renewing OAuth2 tokens, previously it was not possible to see what actually failed
+
+## 4.7.0 2018-11-19
+
+-   Cleaned up List-\* header generation
+-   Fixed 'full' return option for DSN (klaronix) [23b93a3b]
+-   Support promises `for mailcomposer.build()`
+
+## 4.6.8 2018-08-15
+
+-   Use first IP address from DNS resolution when using a proxy (Limbozz) [d4ca847c]
+-   Return raw email from SES transport (gabegorelick) [3aa08967]
+
+## 4.6.7 2018-06-15
+
+-   Added option `skipEncoding` to JSONTransport
+
+## 4.6.6 2018-06-10
+
+-   Fixes mime encoded-word compatibility issue with invalid clients like Zimbra
+
+## 4.6.5 2018-05-23
+
+-   Fixed broken DKIM stream in Node.js v10
+-   Updated error messages for SMTP responses to not include a newline
+
+## 4.6.4 2018-03-31
+
+-   Readded logo author link to README that was accidentally removed a while ago
+
+## 4.6.3 2018-03-13
+
+-   Removed unneeded dependency
+
+## 4.6.2 2018-03-06
+
+-   When redirecting URL calls then do not include original POST content
+
+## 4.6.1 2018-03-06
+
+-   Fixed Smtp connection freezing, when trying to send after close / quit (twawszczak) [73d3911c]
+
+## 4.6.0 2018-02-22
+
+-   Support socks module v2 in addition to v1 [e228bcb2]
+-   Fixed invalid promise return value when using createTestAccount [5524e627]
+-   Allow using local addresses [8f6fa35f]
+
+## 4.5.0 2018-02-21
+
+-   Added new message transport option `normalizeHeaderKey(key)=>normalizedKey` for custom header formatting
+
+## 4.4.2 2018-01-20
+
+-   Added sponsors section to README
+-   enclose encodeURIComponent in try..catch to handle invalid urls
+
+## 4.4.1 2017-12-08
+
+-   Better handling of unexpectedly dropping connections
+
+## 4.4.0 2017-11-10
+
+-   Changed default behavior for attachment option contentTransferEncoding. If it is unset then base64 encoding is used for the attachment. If it is set to false then previous default applies (base64 for most, 7bit for text)
+
+## 4.3.1 2017-10-25
+
+-   Fixed a confict with Electron.js where timers do not have unref method
+
+## 4.3.0 2017-10-23
+
+-   Added new mail object method `mail.normalize(cb)` that should make creating HTTP API based transports much easier
+
+## 4.2.0 2017-10-13
+
+-   Expose streamed messages size and timers in info response
+
+## v4.1.3 2017-10-06
+
+-   Allow generating preview links without calling createTestAccount first
+
+## v4.1.2 2017-10-03
+
+-   No actual changes. Needed to push updated README to npmjs
+
+## v4.1.1 2017-09-25
+
+-   Fixed JSONTransport attachment handling
+
+## v4.1.0 2017-08-28
+
+-   Added new methods `createTestAccount` and `getTestMessageUrl` to use autogenerated email accounts from https://Ethereal.email
+
+## v4.0.1 2017-04-13
+
+-   Fixed issue with LMTP and STARTTLS
+
+## v4.0.0 2017-04-06
+
+-   License changed from EUPLv1.1 to MIT
+
+## v3.1.8 2017-03-21
+
+-   Fixed invalid List-\* header generation
+
+## v3.1.7 2017-03-14
+
+-   Emit an error if STARTTLS ends with connection being closed
+
+## v3.1.6 2017-03-14
+
+-   Expose last server response for smtpConnection
+
+## v3.1.5 2017-03-08
+
+-   Fixed SES transport, added missing `response` value
+
+## v3.1.4 2017-02-26
+
+-   Fixed DKIM calculation for empty body
+-   Ensure linebreak after message content. This fixes DKIM signatures for non-multipart messages where input did not end with a newline
+
+## v3.1.3 2017-02-17
+
+-   Fixed missing `transport.verify()` methods for SES transport
+
+## v3.1.2 2017-02-17
+
+-   Added missing error handlers for Sendmail, SES and Stream transports. If a messages contained an invalid URL as attachment then these transports threw an uncatched error
+
+## v3.1.1 2017-02-13
+
+-   Fixed missing `transport.on('idle')` and `transport.isIdle()` methods for SES transports
+
+## v3.1.0 2017-02-13
+
+-   Added built-in transport for AWS SES. [Docs](http://localhost:1313/transports/ses/)
+-   Updated stream transport to allow building JSON strings. [Docs](http://localhost:1313/transports/stream/#json-transport)
+-   Added new method _mail.resolveAll_ that fetches all attachments and such to be able to more easily build API-based transports
+
+## v3.0.2 2017-02-04
+
+-   Fixed a bug with OAuth2 login where error callback was fired twice if getToken was not available.
+
+## v3.0.1 2017-02-03
+
+-   Fixed a bug where Nodemailer threw an exception if `disableFileAccess` option was used
+-   Added FLOSS [exception declaration](FLOSS_EXCEPTIONS.md)
+
+## v3.0.0 2017-01-31
+
+-   Initial version of Nodemailer 3
+
+This update brings a lot of breaking changes:
+
+-   License changed from MIT to **EUPL-1.1**. This was possible as the new version of Nodemailer is a major rewrite. The features I don't have ownership for, were removed or reimplemented. If there's still some snippets in the code that have vague ownership then notify <mailto:andris@kreata.ee> about the conflicting code and I'll fix it.
+-   Requires **Node.js v6+**
+-   All **templating is gone**. It was too confusing to use and to be really universal a huge list of different renderers would be required. Nodemailer is about email, not about parsing different template syntaxes
+-   **No NTLM authentication**. It was too difficult to re-implement. If you still need it then it would be possible to introduce a pluggable SASL interface where you could load the NTLM module in your own code and pass it to Nodemailer. Currently this is not possible.
+-   **OAuth2 authentication** is built in and has a different [configuration](https://nodemailer.com/smtp/oauth2/). You can use both user (3LO) and service (2LO) accounts to generate access tokens from Nodemailer. Additionally there's a new feature to authenticate differently for every message – useful if your application sends on behalf of different users instead of a single sender.
+-   **Improved Calendaring**. Provide an ical file to Nodemailer to send out [calendar events](https://nodemailer.com/message/calendar-events/).
+
+And also some non-breaking changes:
+
+-   All **dependencies were dropped**. There is exactly 0 dependencies needed to use Nodemailer. This brings the installation time of Nodemailer from NPM down to less than 2 seconds
+-   **Delivery status notifications** added to Nodemailer
+-   Improved and built-in **DKIM** signing of messages. Previously you needed an external module for this and it did quite a lousy job with larger messages
+-   **Stream transport** to return a RFC822 formatted message as a stream. Useful if you want to use Nodemailer as a preprocessor and not for actual delivery.
+-   **Sendmail** transport built-in, no need for external transport plugin
+
+See [Nodemailer.com](https://nodemailer.com/) for full documentation
+
+## 2.7.0 2016-12-08
+
+-   Bumped mailcomposer that generates encoded-words differently which might break some tests
+
+## 2.6.0 2016-09-05
+
+-   Added new options disableFileAccess and disableUrlAccess
+-   Fixed envelope handling where cc/bcc fields were ignored in the envelope object
+
+## 2.4.2 2016-05-25
+
+-   Removed shrinkwrap file. Seemed to cause more trouble than help
+
+## 2.4.1 2016-05-12
+
+-   Fixed outdated shrinkwrap file
+
+## 2.4.0 2016-05-11
+
+-   Bumped mailcomposer module to allow using `false` as attachment filename (suppresses filename usage)
+-   Added NTLM authentication support
+
+## 2.3.2 2016-04-11
+
+-   Bumped smtp transport modules to get newest smtp-connection that fixes SMTPUTF8 support for internationalized email addresses
+
+## 2.3.1 2016-04-08
+
+-   Bumped mailcomposer to have better support for message/822 attachments
+
+## 2.3.0 2016-03-03
+
+-   Fixed a bug with attachment filename that contains mixed unicode and dashes
+-   Added built-in support for proxies by providing a new SMTP option `proxy` that takes a proxy configuration url as its value
+-   Added option `transport` to dynamically load transport plugins
+-   Do not require globally installed grunt-cli
+
+## 2.2.1 2016-02-20
+
+-   Fixed a bug in SMTP requireTLS option that was broken
+
+## 2.2.0 2016-02-18
+
+-   Removed the need to use `clone` dependency
+-   Added new method `verify` to check SMTP configuration
+-   Direct transport uses STARTTLS by default, fallbacks to plaintext if STARTTLS fails
+-   Added new message option `list` for setting List-\* headers
+-   Add simple proxy support with `getSocket` method
+-   Added new message option `textEncoding`. If `textEncoding` is not set then detect best encoding automatically
+-   Added new message option `icalEvent` to embed iCalendar events. Example [here](examples/ical-event.js)
+-   Added new attachment option `raw` to use prepared MIME contents instead of generating a new one. This might be useful when you want to handcraft some parts of the message yourself, for example if you want to inject a PGP encrypted message as the contents of a MIME node
+-   Added new message option `raw` to use an existing MIME message instead of generating a new one
+
+## 2.1.0 2016-02-01
+
+Republishing 2.1.0-rc.1 as stable. To recap, here's the notable changes between v2.0 and v2.1:
+
+-   Implemented templating support. You can either use a simple built-in renderer or some external advanced renderer, eg. [node-email-templates](https://github.com/niftylettuce/node-email-templates). Templating [docs](http://nodemailer.com/2-0-0-beta/templating/).
+-   Updated smtp-pool to emit 'idle' events in order to handle message queue more effectively
+-   Updated custom header handling, works everywhere the same now, no differences between adding custom headers to the message or to an attachment
+
+## 2.1.0-rc.1 2016-01-25
+
+Sneaked in some new features even though it is already rc
+
+-   If a SMTP pool is closed while there are still messages in a queue, the message callbacks are invoked with an error
+-   In case of SMTP pool the transporter emits 'idle' when there is a free connection slot available
+-   Added method `isIdle()` that checks if a pool has still some free connection slots available
+
+## 2.1.0-rc.0 2016-01-20
+
+-   Bumped dependency versions
+
+## 2.1.0-beta.3 2016-01-20
+
+-   Added support for node-email-templates templating in addition to the built-in renderer
+
+## 2.1.0-beta.2 2016-01-20
+
+-   Implemented simple templating feature
+
+## 2.1.0-beta.1 2016-01-20
+
+-   Allow using prepared header values that are not folded or encoded by Nodemailer
+
+## 2.1.0-beta.0 2016-01-20
+
+-   Use the same header custom structure for message root, attachments and alternatives
+-   Ensure that Message-Id exists when accessing message
+-   Allow using array values for custom headers (inserts every value in its own row)
+
+## 2.0.0 2016-01-11
+
+-   Released rc.2 as stable
+
+## 2.0.0-rc.2 2016-01-04
+
+-   Locked dependencies
+
+## 2.0.0-beta.2 2016-01-04
+
+-   Updated documentation to reflect changes with SMTP handling
+-   Use beta versions for smtp/pool/direct transports
+-   Updated logging
+
+## 2.0.0-beta.1 2016-01-03
+
+-   Use bunyan compatible logger instead of the emit('log') style
+-   Outsourced some reusable methods to nodemailer-shared
+-   Support setting direct/smtp/pool with the default configuration
+
+## 2.0.0-beta.0 2015-12-31
+
+-   Stream errors are not silently swallowed
+-   Do not use format=flowed
+-   Use nodemailer-fetch to fetch URL streams
+-   jshint replaced by eslint
+
+## v1.11.0 2015-12-28
+
+Allow connection url based SMTP configurations
+
+## v1.10.0 2015-11-13
+
+Added `defaults` argument for `createTransport` to predefine commonn values (eg. `from` address)
+
+## v1.9.0 2015-11-09
+
+Returns a Promise for `sendMail` if callback is not defined
+
+## v1.8.0 2015-10-08
+
+Added priority option (high, normal, low) for setting Importance header
+
+## v1.7.0 2015-10-06
+
+Replaced hyperquest with needle. Fixes issues with compressed data and redirects
+
+## v1.6.0 2015-10-05
+
+Maintenance release. Bumped dependencies to get support for unicode filenames for QQ webmail and to support emoji in filenames
+
+## v1.5.0 2015-09-24
+
+Use mailcomposer instead of built in solution to generate message sources. Bumped libmime gives better quoted-printable handling.
+
+## v1.4.0 2015-06-27
+
+Added new message option `watchHtml` to specify Apple Watch specific HTML part of the message. See [this post](https://litmus.com/blog/how-to-send-hidden-version-email-apple-watch) for details
+
+## v1.3.4 2015-04-25
+
+Maintenance release, bumped buildmail version to get fixed format=flowed handling
+
+## v1.3.3 2015-04-25
+
+Maintenance release, bumped dependencies
+
+## v1.3.2 2015-03-09
+
+Maintenance release, upgraded dependencies. Replaced simplesmtp based tests with smtp-server based ones.
+
+## v1.3.0 2014-09-12
+
+Maintenance release, upgrades buildmail and libmime. Allows using functions as transform plugins and fixes issue with unicode filenames in Gmail.
+
+## v1.2.2 2014-09-05
+
+Proper handling of data uris as attachments. Attachment `path` property can also be defined as a data uri, not just regular url or file path.
+
+## v1.2.1 2014-08-21
+
+Bumped libmime and mailbuild versions to properly handle filenames with spaces (short ascii only filenames with spaces were left unquoted).
+
+## v1.2.0 2014-08-18
+
+Allow using encoded strings as attachments. Added new property `encoding` which defines the encoding used for a `content` string. If encoding is set, the content value is converted to a Buffer value using the defined encoding before usage. Useful for including binary attachemnts in JSON formatted email objects.
+
+## v1.1.2 2014-08-18
+
+Return deprecatin error for v0.x style configuration
+
+## v1.1.1 2014-07-30
+
+Bumped nodemailer-direct-transport dependency. Updated version includes a bugfix for Stream nodes handling. Important only if use direct-transport with Streams (not file paths or urls) as attachment content.
+
+## v1.1.0 2014-07-29
+
+Added new method `resolveContent()` to get the html/text/attachment content as a String or Buffer.
+
+## v1.0.4 2014-07-23
+
+Bugfix release. HTML node was instered twice if the message consisted of a HTML content (but no text content) + at least one attachment with CID + at least one attachment without CID. In this case the HTML node was inserted both to the root level multipart/mixed section and to the multipart/related sub section
+
+## v1.0.3 2014-07-16
+
+Fixed a bug where Nodemailer crashed if the message content type was multipart/related
+
+## v1.0.2 2014-07-16
+
+Upgraded nodemailer-smtp-transport to 0.1.11\. The docs state that for SSL you should use 'secure' option but the underlying smtp-connection module used 'secureConnection' for this purpose. Fixed smpt-connection to match the docs.
+
+## v1.0.1 2014-07-15
+
+Implemented missing #close method that is passed to the underlying transport object. Required by the smtp pool.
+
+## v1.0.0 2014-07-15
+
+Total rewrite. See migration guide here: <http://www.andrisreinman.com/nodemailer-v1-0/#migrationguide>
+
+## v0.7.1 2014-07-09
+
+-   Upgraded aws-sdk to 2.0.5
+
+## v0.7.0 2014-06-17
+
+-   Bumped version to v0.7.0
+-   Fix AWS-SES usage [5b6bc144]
+-   Replace current SES with new SES using AWS-SDK (Elanorr) [c79d797a]
+-   Updated README.md about Node Email Templates (niftylettuce) [e52bef81]
+
+## v0.6.5 2014-05-15
+
+-   Bumped version to v0.6.5
+-   Use tildes instead of carets for dependency listing [5296ce41]
+-   Allow clients to set a custom identityString (venables) [5373287d]
+-   bugfix (adding "-i" to sendmail command line for each new mail) by copying this.args (vrodic) [05a8a9a3]
+-   update copyright (gdi2290) [3a6cba3a]
+
+## v0.6.4 2014-05-13
+
+-   Bumped version to v0.6.4
+-   added npmignore, bumped dependencies [21bddcd9]
+-   Add AOL to well-known services (msouce) [da7dd3b7]
+
+## v0.6.3 2014-04-16
+
+-   Bumped version to v0.6.3
+-   Upgraded simplesmtp dependency [dd367f59]
+
+## v0.6.2 2014-04-09
+
+-   Bumped version to v0.6.2
+-   Added error option to Stub transport [c423acad]
+-   Use SVG npm badge (t3chnoboy) [677117b7]
+-   add SendCloud to well known services (haio) [43c358e0]
+-   High-res build-passing and NPM module badges (sahat) [9fdc37cd]
+
+## v0.6.1 2014-01-26
+
+-   Bumped version to v0.6.1
+-   Do not throw on multiple errors from sendmail command [c6e2cd12]
+-   Do not require callback for pickup, fixes #238 [93eb3214]
+-   Added AWSSecurityToken information to README, fixes #235 [58e921d1]
+-   Added Nodemailer logo [06b7d1a8]
+
+## v0.6.0 2013-12-30
+
+-   Bumped version to v0.6.0
+-   Allow defining custom transport methods [ec5b48ce]
+-   Return messageId with responseObject for all built in transport methods [74445cec]
+-   Bumped dependency versions for mailcomposer and readable-stream [9a034c34]
+-   Changed pickup argument name to 'directory' [01c3ea53]
+-   Added support for IIS pickup directory with PICKUP transport (philipproplesch) [36940b59..360a2878]
+-   Applied common styles [9e93a409]
+-   Updated readme [c78075e7]
+
+## v0.5.15 2013-12-13
+
+-   bumped version to v0.5.15
+-   Updated README, added global options info for setting uo transports [554bb0e5]
+-   Resolve public hostname, if resolveHostname property for a transport object is set to `true` [9023a6e1..4c66b819]
+
+## v0.5.14 2013-12-05
+
+-   bumped version to v0.5.14
+-   Expose status for direct messages [f0312df6]
+-   Allow to skip the X-Mailer header if xMailer value is set to 'false' [f2c20a68]
+
+## v0.5.13 2013-12-03
+
+-   bumped version to v0.5.13
+-   Use the name property from the transport object to use for the domain part of message-id values (1598eee9)
+
+## v0.5.12 2013-12-02
+
+-   bumped version to v0.5.12
+-   Expose transport method and transport module version if available [a495106e]
+-   Added 'he' module instead of using custom html entity decoding [c197d102]
+-   Added xMailer property for transport configuration object to override X-Mailer value [e8733a61]
+-   Updated README, added description for 'mail' method [e1f5f3a6]
+
+## v0.5.11 2013-11-28
+
+-   bumped version to v0.5.11
+-   Updated mailcomposer version. Replaces ent with he [6a45b790e]
+
+## v0.5.10 2013-11-26
+
+-   bumped version to v0.5.10
+-   added shorthand function mail() for direct transport type [88129bd7]
+-   minor tweaks and typo fixes [f797409e..ceac0ca4]
+
+## v0.5.9 2013-11-25
+
+-   bumped version to v0.5.9
+-   Update for 'direct' handling [77b84e2f]
+-   do not require callback to be provided for 'direct' type [ec51c79f]
+
+## v0.5.8 2013-11-22
+
+-   bumped version to v0.5.8
+-   Added support for 'direct' transport [826f226d..0dbbcbbc]
+
+## v0.5.7 2013-11-18
+
+-   bumped version to v0.5.7
+-   Replace \r\n by \n in Sendmail transport (rolftimmermans) [fed2089e..616ec90c] A lot of sendmail implementations choke on \r\n newlines and require \n This commit addresses this by transforming all \r\n sequences passed to the sendmail command with \n
+
+## v0.5.6 2013-11-15
+
+-   bumped version to v0.5.6
+-   Upgraded mailcomposer dependency to 0.2.4 [e5ff9c40]
+-   Removed noCR option [e810d1b8]
+-   Update wellknown.js, added FastMail (k-j-kleist) [cf930f6d]
+
+## v0.5.5 2013-10-30
+
+-   bumped version to v0.5.5
+-   Updated mailcomposer dependnecy version to 0.2.3
+-   Remove legacy code - node v0.4 is not supported anymore anyway
+-   Use hostname (autodetected or from the options.name property) for Message-Id instead of "Nodemailer" (helps a bit when messages are identified as spam)
+-   Added maxMessages info to README
+
+## v0.5.4 2013-10-29
+
+-   bumped version to v0.5.4
+-   added "use strict" statements
+-   Added DSN info to README
+-   add support for QQ enterprise email (coderhaoxin)
+-   Add a Bitdeli Badge to README
+-   DSN options Passthrought into simplesmtp. (irvinzz)
+
+## v0.5.3 2013-10-03
+
+-   bumped version v0.5.3
+-   Using a stub transport to prevent sendmail from being called during a test. (jsdevel)
+-   closes #78: sendmail transport does not work correctly on Unix machines. (jsdevel)
+-   Updated PaaS Support list to include Modulus. (fiveisprime)
+-   Translate self closing break tags to newline (kosmasgiannis)
+-   fix typos (aeosynth)
+
+## v0.5.2 2013-07-25
+
+-   bumped version v0.5.2
+-   Merge pull request #177 from MrSwitch/master Fixing Amazon SES, fatal error caused by bad connection
diff --git a/backend/node_modules/nodemailer/CODE_OF_CONDUCT.md b/backend/node_modules/nodemailer/CODE_OF_CONDUCT.md
new file mode 100644
index 0000000..e6895ed
--- /dev/null
+++ b/backend/node_modules/nodemailer/CODE_OF_CONDUCT.md
@@ -0,0 +1,76 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, sex characteristics, gender identity and expression,
+level of experience, education, socio-economic status, nationality, personal
+appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+ advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+ address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+ professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at info@nodemailer.com. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see
+https://www.contributor-covenant.org/faq
diff --git a/backend/node_modules/nodemailer/LICENSE b/backend/node_modules/nodemailer/LICENSE
new file mode 100644
index 0000000..fdfc967
--- /dev/null
+++ b/backend/node_modules/nodemailer/LICENSE
@@ -0,0 +1,16 @@
+Copyright (c) 2011-2023 Andris Reinman
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/nodemailer/README.md b/backend/node_modules/nodemailer/README.md
new file mode 100644
index 0000000..1ce0380
--- /dev/null
+++ b/backend/node_modules/nodemailer/README.md
@@ -0,0 +1,86 @@
+# Nodemailer
+
+[![Nodemailer](https://raw.githubusercontent.com/nodemailer/nodemailer/master/assets/nm_logo_200x136.png)](https://nodemailer.com/about/)
+
+Send emails from Node.js – easy as cake! 🍰✉️
+
+[![NPM](https://nodei.co/npm/nodemailer.png?downloads=true&downloadRank=true&stars=true)](https://nodemailer.com/about/)
+
+See [nodemailer.com](https://nodemailer.com/) for documentation and terms.
+
+> [!TIP]
+> Check out **[EmailEngine](https://emailengine.app/?utm_source=github-nodemailer&utm_campaign=nodemailer&utm_medium=readme-link)** – a self-hosted email gateway that allows making **REST requests against IMAP and SMTP servers**. EmailEngine also sends webhooks whenever something changes on the registered accounts.\
+> \
+> Using the email accounts registered with EmailEngine, you can receive and [send emails](https://emailengine.app/sending-emails?utm_source=github-nodemailer&utm_campaign=nodemailer&utm_medium=readme-link). EmailEngine supports OAuth2, delayed sends, opens and clicks tracking, bounce detection, etc. All on top of regular email accounts without an external MTA service.
+
+## Having an issue?
+
+#### First review the docs
+
+Documentation for Nodemailer can be found at [nodemailer.com](https://nodemailer.com/about/).
+
+#### Nodemailer throws a SyntaxError for "..."
+
+You are using an older Node.js version than v6.0. Upgrade Node.js to get support for the spread operator. Nodemailer supports all Node.js versions starting from Node.js@v6.0.0.
+
+#### I'm having issues with Gmail
+
+Gmail either works well, or it does not work at all. It is probably easier to switch to an alternative service instead of fixing issues with Gmail. If Gmail does not work for you, then don't use it. Read more about it [here](https://nodemailer.com/usage/using-gmail/).
+
+#### I get ETIMEDOUT errors
+
+Check your firewall settings. Timeout usually occurs when you try to open a connection to a firewalled port either on the server or on your machine. Some ISPs also block email ports to prevent spamming.
+
+#### Nodemailer works on one machine but not in another
+
+It's either a firewall issue, or your SMTP server blocks authentication attempts from some servers.
+
+#### I get TLS errors
+
+-   If you are running the code on your machine, check your antivirus settings. Antiviruses often mess around with email ports usage. Node.js might not recognize the MITM cert your antivirus is using.
+-   Latest Node versions allow only TLS versions 1.2 and higher. Some servers might still use TLS 1.1 or lower. Check Node.js docs on how to get correct TLS support for your app. You can change this with [tls.minVersion](https://nodejs.org/dist/latest-v16.x/docs/api/tls.html#tls_tls_createsecurecontext_options) option
+-   You might have the wrong value for the `secure` option. This should be set to `true` only for port 465. For every other port, it should be `false`. Setting it to `false` does not mean that Nodemailer would not use TLS. Nodemailer would still try to upgrade the connection to use TLS if the server supports it.
+-   Older Node versions do not fully support the certificate chain of the newest Let's Encrypt certificates. Either set [tls.rejectUnauthorized](https://nodejs.org/dist/latest-v16.x/docs/api/tls.html#tlsconnectoptions-callback) to `false` to skip chain verification or upgrade your Node version
+
+```
+let configOptions = {
+    host: "smtp.example.com",
+    port: 587,
+    tls: {
+        rejectUnauthorized: true,
+        minVersion: "TLSv1.2"
+    }
+}
+```
+
+#### I have issues with DNS / hosts file
+
+Node.js uses [c-ares](https://nodejs.org/en/docs/meta/topics/dependencies/#c-ares) to resolve domain names, not the DNS library provided by the system, so if you have some custom DNS routing set up, it might be ignored. Nodemailer runs [dns.resolve4()](https://nodejs.org/dist/latest-v16.x/docs/api/dns.html#dnsresolve4hostname-options-callback) and [dns.resolve6()](https://nodejs.org/dist/latest-v16.x/docs/api/dns.html#dnsresolve6hostname-options-callback) to resolve hostname into an IP address. If both calls fail, then Nodemailer will fall back to [dns.lookup()](https://nodejs.org/dist/latest-v16.x/docs/api/dns.html#dnslookuphostname-options-callback). If this does not work for you, you can hard code the IP address into the configuration like shown below. In that case, Nodemailer would not perform any DNS lookups.
+
+```
+let configOptions = {
+    host: "1.2.3.4",
+    port: 465,
+    secure: true,
+    tls: {
+        // must provide server name, otherwise TLS certificate check will fail
+        servername: "example.com"
+    }
+}
+```
+
+#### I have an issue with TypeScript types
+
+Nodemailer has official support for Node.js only. For anything related to TypeScript, you need to directly contact the authors of the [type definitions](https://www.npmjs.com/package/@types/nodemailer).
+
+#### I have a different problem
+
+If you are having issues with Nodemailer, then the best way to find help would be [Stack Overflow](https://stackoverflow.com/search?q=nodemailer) or revisit the [docs](https://nodemailer.com/about/).
+
+### License
+
+Nodemailer is licensed under the **MIT No Attribution license**
+
+---
+
+The Nodemailer logo was designed by [Sven Kristjansen](https://www.behance.net/kristjansen).
diff --git a/backend/node_modules/nodemailer/SECURITY.txt b/backend/node_modules/nodemailer/SECURITY.txt
new file mode 100644
index 0000000..27a54d3
--- /dev/null
+++ b/backend/node_modules/nodemailer/SECURITY.txt
@@ -0,0 +1,22 @@
+-----BEGIN PGP SIGNED MESSAGE-----
+Hash: SHA256
+
+Contact: mailto:andris@reinman.eu
+Encryption: https://keys.openpgp.org/vks/v1/by-fingerprint/5D952A46E1D8C931F6364E01DC6C83F4D584D364
+Preferred-Languages: en, et
+-----BEGIN PGP SIGNATURE-----
+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+=BUZr
+-----END PGP SIGNATURE-----
diff --git a/backend/node_modules/nodemailer/lib/addressparser/index.js b/backend/node_modules/nodemailer/lib/addressparser/index.js
new file mode 100644
index 0000000..73e39e5
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/addressparser/index.js
@@ -0,0 +1,327 @@
+'use strict';
+
+/**
+ * Converts tokens for a single address into an address object
+ *
+ * @param {Array} tokens Tokens object
+ * @return {Object} Address object
+ */
+function _handleAddress(tokens) {
+    let isGroup = false;
+    let state = 'text';
+    let address;
+    let addresses = [];
+    let data = {
+        address: [],
+        comment: [],
+        group: [],
+        text: []
+    };
+    let i;
+    let len;
+
+    // Filter out <addresses>, (comments) and regular text
+    for (i = 0, len = tokens.length; i < len; i++) {
+        let token = tokens[i];
+        let prevToken = i ? tokens[i - 1] : null;
+        if (token.type === 'operator') {
+            switch (token.value) {
+                case '<':
+                    state = 'address';
+                    break;
+                case '(':
+                    state = 'comment';
+                    break;
+                case ':':
+                    state = 'group';
+                    isGroup = true;
+                    break;
+                default:
+                    state = 'text';
+                    break;
+            }
+        } else if (token.value) {
+            if (state === 'address') {
+                // handle use case where unquoted name includes a "<"
+                // Apple Mail truncates everything between an unexpected < and an address
+                // and so will we
+                token.value = token.value.replace(/^[^<]*<\s*/, '');
+            }
+
+            if (prevToken && prevToken.noBreak && data[state].length) {
+                // join values
+                data[state][data[state].length - 1] += token.value;
+            } else {
+                data[state].push(token.value);
+            }
+        }
+    }
+
+    // If there is no text but a comment, replace the two
+    if (!data.text.length && data.comment.length) {
+        data.text = data.comment;
+        data.comment = [];
+    }
+
+    if (isGroup) {
+        // http://tools.ietf.org/html/rfc2822#appendix-A.1.3
+        data.text = data.text.join(' ');
+        addresses.push({
+            name: data.text || (address && address.name),
+            group: data.group.length ? addressparser(data.group.join(',')) : []
+        });
+    } else {
+        // If no address was found, try to detect one from regular text
+        if (!data.address.length && data.text.length) {
+            for (i = data.text.length - 1; i >= 0; i--) {
+                if (data.text[i].match(/^[^@\s]+@[^@\s]+$/)) {
+                    data.address = data.text.splice(i, 1);
+                    break;
+                }
+            }
+
+            let _regexHandler = function (address) {
+                if (!data.address.length) {
+                    data.address = [address.trim()];
+                    return ' ';
+                } else {
+                    return address;
+                }
+            };
+
+            // still no address
+            if (!data.address.length) {
+                for (i = data.text.length - 1; i >= 0; i--) {
+                    // fixed the regex to parse email address correctly when email address has more than one @
+                    data.text[i] = data.text[i].replace(/\s*\b[^@\s]+@[^\s]+\b\s*/, _regexHandler).trim();
+                    if (data.address.length) {
+                        break;
+                    }
+                }
+            }
+        }
+
+        // If there's still is no text but a comment exixts, replace the two
+        if (!data.text.length && data.comment.length) {
+            data.text = data.comment;
+            data.comment = [];
+        }
+
+        // Keep only the first address occurence, push others to regular text
+        if (data.address.length > 1) {
+            data.text = data.text.concat(data.address.splice(1));
+        }
+
+        // Join values with spaces
+        data.text = data.text.join(' ');
+        data.address = data.address.join(' ');
+
+        if (!data.address && isGroup) {
+            return [];
+        } else {
+            address = {
+                address: data.address || data.text || '',
+                name: data.text || data.address || ''
+            };
+
+            if (address.address === address.name) {
+                if ((address.address || '').match(/@/)) {
+                    address.name = '';
+                } else {
+                    address.address = '';
+                }
+            }
+
+            addresses.push(address);
+        }
+    }
+
+    return addresses;
+}
+
+/**
+ * Creates a Tokenizer object for tokenizing address field strings
+ *
+ * @constructor
+ * @param {String} str Address field string
+ */
+class Tokenizer {
+    constructor(str) {
+        this.str = (str || '').toString();
+        this.operatorCurrent = '';
+        this.operatorExpecting = '';
+        this.node = null;
+        this.escaped = false;
+
+        this.list = [];
+        /**
+         * Operator tokens and which tokens are expected to end the sequence
+         */
+        this.operators = {
+            '"': '"',
+            '(': ')',
+            '<': '>',
+            ',': '',
+            ':': ';',
+            // Semicolons are not a legal delimiter per the RFC2822 grammar other
+            // than for terminating a group, but they are also not valid for any
+            // other use in this context.  Given that some mail clients have
+            // historically allowed the semicolon as a delimiter equivalent to the
+            // comma in their UI, it makes sense to treat them the same as a comma
+            // when used outside of a group.
+            ';': ''
+        };
+    }
+
+    /**
+     * Tokenizes the original input string
+     *
+     * @return {Array} An array of operator|text tokens
+     */
+    tokenize() {
+        let list = [];
+
+        for (let i = 0, len = this.str.length; i < len; i++) {
+            let chr = this.str.charAt(i);
+            let nextChr = i < len - 1 ? this.str.charAt(i + 1) : null;
+            this.checkChar(chr, nextChr);
+        }
+
+        this.list.forEach(node => {
+            node.value = (node.value || '').toString().trim();
+            if (node.value) {
+                list.push(node);
+            }
+        });
+
+        return list;
+    }
+
+    /**
+     * Checks if a character is an operator or text and acts accordingly
+     *
+     * @param {String} chr Character from the address field
+     */
+    checkChar(chr, nextChr) {
+        if (this.escaped) {
+            // ignore next condition blocks
+        } else if (chr === this.operatorExpecting) {
+            this.node = {
+                type: 'operator',
+                value: chr
+            };
+
+            if (nextChr && ![' ', '\t', '\r', '\n', ',', ';'].includes(nextChr)) {
+                this.node.noBreak = true;
+            }
+
+            this.list.push(this.node);
+            this.node = null;
+            this.operatorExpecting = '';
+            this.escaped = false;
+
+            return;
+        } else if (!this.operatorExpecting && chr in this.operators) {
+            this.node = {
+                type: 'operator',
+                value: chr
+            };
+            this.list.push(this.node);
+            this.node = null;
+            this.operatorExpecting = this.operators[chr];
+            this.escaped = false;
+            return;
+        } else if (['"', "'"].includes(this.operatorExpecting) && chr === '\\') {
+            this.escaped = true;
+            return;
+        }
+
+        if (!this.node) {
+            this.node = {
+                type: 'text',
+                value: ''
+            };
+            this.list.push(this.node);
+        }
+
+        if (chr === '\n') {
+            // Convert newlines to spaces. Carriage return is ignored as \r and \n usually
+            // go together anyway and there already is a WS for \n. Lone \r means something is fishy.
+            chr = ' ';
+        }
+
+        if (chr.charCodeAt(0) >= 0x21 || [' ', '\t'].includes(chr)) {
+            // skip command bytes
+            this.node.value += chr;
+        }
+
+        this.escaped = false;
+    }
+}
+
+/**
+ * Parses structured e-mail addresses from an address field
+ *
+ * Example:
+ *
+ *    'Name <address@domain>'
+ *
+ * will be converted to
+ *
+ *     [{name: 'Name', address: 'address@domain'}]
+ *
+ * @param {String} str Address field
+ * @return {Array} An array of address objects
+ */
+function addressparser(str, options) {
+    options = options || {};
+
+    let tokenizer = new Tokenizer(str);
+    let tokens = tokenizer.tokenize();
+
+    let addresses = [];
+    let address = [];
+    let parsedAddresses = [];
+
+    tokens.forEach(token => {
+        if (token.type === 'operator' && (token.value === ',' || token.value === ';')) {
+            if (address.length) {
+                addresses.push(address);
+            }
+            address = [];
+        } else {
+            address.push(token);
+        }
+    });
+
+    if (address.length) {
+        addresses.push(address);
+    }
+
+    addresses.forEach(address => {
+        address = _handleAddress(address);
+        if (address.length) {
+            parsedAddresses = parsedAddresses.concat(address);
+        }
+    });
+
+    if (options.flatten) {
+        let addresses = [];
+        let walkAddressList = list => {
+            list.forEach(address => {
+                if (address.group) {
+                    return walkAddressList(address.group);
+                } else {
+                    addresses.push(address);
+                }
+            });
+        };
+        walkAddressList(parsedAddresses);
+        return addresses;
+    }
+
+    return parsedAddresses;
+}
+
+// expose to the world
+module.exports = addressparser;
diff --git a/backend/node_modules/nodemailer/lib/base64/index.js b/backend/node_modules/nodemailer/lib/base64/index.js
new file mode 100644
index 0000000..cafd5d8
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/base64/index.js
@@ -0,0 +1,142 @@
+'use strict';
+
+const Transform = require('stream').Transform;
+
+/**
+ * Encodes a Buffer into a base64 encoded string
+ *
+ * @param {Buffer} buffer Buffer to convert
+ * @returns {String} base64 encoded string
+ */
+function encode(buffer) {
+    if (typeof buffer === 'string') {
+        buffer = Buffer.from(buffer, 'utf-8');
+    }
+
+    return buffer.toString('base64');
+}
+
+/**
+ * Adds soft line breaks to a base64 string
+ *
+ * @param {String} str base64 encoded string that might need line wrapping
+ * @param {Number} [lineLength=76] Maximum allowed length for a line
+ * @returns {String} Soft-wrapped base64 encoded string
+ */
+function wrap(str, lineLength) {
+    str = (str || '').toString();
+    lineLength = lineLength || 76;
+
+    if (str.length <= lineLength) {
+        return str;
+    }
+
+    let result = [];
+    let pos = 0;
+    let chunkLength = lineLength * 1024;
+    while (pos < str.length) {
+        let wrappedLines = str
+            .substr(pos, chunkLength)
+            .replace(new RegExp('.{' + lineLength + '}', 'g'), '$&\r\n')
+            .trim();
+        result.push(wrappedLines);
+        pos += chunkLength;
+    }
+
+    return result.join('\r\n').trim();
+}
+
+/**
+ * Creates a transform stream for encoding data to base64 encoding
+ *
+ * @constructor
+ * @param {Object} options Stream options
+ * @param {Number} [options.lineLength=76] Maximum length for lines, set to false to disable wrapping
+ */
+class Encoder extends Transform {
+    constructor(options) {
+        super();
+        // init Transform
+        this.options = options || {};
+
+        if (this.options.lineLength !== false) {
+            this.options.lineLength = this.options.lineLength || 76;
+        }
+
+        this._curLine = '';
+        this._remainingBytes = false;
+
+        this.inputBytes = 0;
+        this.outputBytes = 0;
+    }
+
+    _transform(chunk, encoding, done) {
+        if (encoding !== 'buffer') {
+            chunk = Buffer.from(chunk, encoding);
+        }
+
+        if (!chunk || !chunk.length) {
+            return setImmediate(done);
+        }
+
+        this.inputBytes += chunk.length;
+
+        if (this._remainingBytes && this._remainingBytes.length) {
+            chunk = Buffer.concat([this._remainingBytes, chunk], this._remainingBytes.length + chunk.length);
+            this._remainingBytes = false;
+        }
+
+        if (chunk.length % 3) {
+            this._remainingBytes = chunk.slice(chunk.length - (chunk.length % 3));
+            chunk = chunk.slice(0, chunk.length - (chunk.length % 3));
+        } else {
+            this._remainingBytes = false;
+        }
+
+        let b64 = this._curLine + encode(chunk);
+
+        if (this.options.lineLength) {
+            b64 = wrap(b64, this.options.lineLength);
+
+            // remove last line as it is still most probably incomplete
+            let lastLF = b64.lastIndexOf('\n');
+            if (lastLF < 0) {
+                this._curLine = b64;
+                b64 = '';
+            } else if (lastLF === b64.length - 1) {
+                this._curLine = '';
+            } else {
+                this._curLine = b64.substr(lastLF + 1);
+                b64 = b64.substr(0, lastLF + 1);
+            }
+        }
+
+        if (b64) {
+            this.outputBytes += b64.length;
+            this.push(Buffer.from(b64, 'ascii'));
+        }
+
+        setImmediate(done);
+    }
+
+    _flush(done) {
+        if (this._remainingBytes && this._remainingBytes.length) {
+            this._curLine += encode(this._remainingBytes);
+        }
+
+        if (this._curLine) {
+            this._curLine = wrap(this._curLine, this.options.lineLength);
+            this.outputBytes += this._curLine.length;
+            this.push(this._curLine, 'ascii');
+            this._curLine = '';
+        }
+        done();
+    }
+}
+
+// expose to the world
+module.exports = {
+    encode,
+    wrap,
+    Encoder
+};
diff --git a/backend/node_modules/nodemailer/lib/dkim/index.js b/backend/node_modules/nodemailer/lib/dkim/index.js
new file mode 100644
index 0000000..7536b37
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/dkim/index.js
@@ -0,0 +1,251 @@
+'use strict';
+
+// FIXME:
+// replace this Transform mess with a method that pipes input argument to output argument
+
+const MessageParser = require('./message-parser');
+const RelaxedBody = require('./relaxed-body');
+const sign = require('./sign');
+const PassThrough = require('stream').PassThrough;
+const fs = require('fs');
+const path = require('path');
+const crypto = require('crypto');
+
+const DKIM_ALGO = 'sha256';
+const MAX_MESSAGE_SIZE = 128 * 1024; // buffer messages larger than this to disk
+
+/*
+// Usage:
+
+let dkim = new DKIM({
+    domainName: 'example.com',
+    keySelector: 'key-selector',
+    privateKey,
+    cacheDir: '/tmp'
+});
+dkim.sign(input).pipe(process.stdout);
+
+// Where inputStream is a rfc822 message (either a stream, string or Buffer)
+// and outputStream is a DKIM signed rfc822 message
+*/
+
+class DKIMSigner {
+    constructor(options, keys, input, output) {
+        this.options = options || {};
+        this.keys = keys;
+
+        this.cacheTreshold = Number(this.options.cacheTreshold) || MAX_MESSAGE_SIZE;
+        this.hashAlgo = this.options.hashAlgo || DKIM_ALGO;
+
+        this.cacheDir = this.options.cacheDir || false;
+
+        this.chunks = [];
+        this.chunklen = 0;
+        this.readPos = 0;
+        this.cachePath = this.cacheDir ? path.join(this.cacheDir, 'message.' + Date.now() + '-' + crypto.randomBytes(14).toString('hex')) : false;
+        this.cache = false;
+
+        this.headers = false;
+        this.bodyHash = false;
+        this.parser = false;
+        this.relaxedBody = false;
+
+        this.input = input;
+        this.output = output;
+        this.output.usingCache = false;
+
+        this.hasErrored = false;
+
+        this.input.on('error', err => {
+            this.hasErrored = true;
+            this.cleanup();
+            output.emit('error', err);
+        });
+    }
+
+    cleanup() {
+        if (!this.cache || !this.cachePath) {
+            return;
+        }
+        fs.unlink(this.cachePath, () => false);
+    }
+
+    createReadCache() {
+        // pipe remainings to cache file
+        this.cache = fs.createReadStream(this.cachePath);
+        this.cache.once('error', err => {
+            this.cleanup();
+            this.output.emit('error', err);
+        });
+        this.cache.once('close', () => {
+            this.cleanup();
+        });
+        this.cache.pipe(this.output);
+    }
+
+    sendNextChunk() {
+        if (this.hasErrored) {
+            return;
+        }
+
+        if (this.readPos >= this.chunks.length) {
+            if (!this.cache) {
+                return this.output.end();
+            }
+            return this.createReadCache();
+        }
+        let chunk = this.chunks[this.readPos++];
+        if (this.output.write(chunk) === false) {
+            return this.output.once('drain', () => {
+                this.sendNextChunk();
+            });
+        }
+        setImmediate(() => this.sendNextChunk());
+    }
+
+    sendSignedOutput() {
+        let keyPos = 0;
+        let signNextKey = () => {
+            if (keyPos >= this.keys.length) {
+                this.output.write(this.parser.rawHeaders);
+                return setImmediate(() => this.sendNextChunk());
+            }
+            let key = this.keys[keyPos++];
+            let dkimField = sign(this.headers, this.hashAlgo, this.bodyHash, {
+                domainName: key.domainName,
+                keySelector: key.keySelector,
+                privateKey: key.privateKey,
+                headerFieldNames: this.options.headerFieldNames,
+                skipFields: this.options.skipFields
+            });
+            if (dkimField) {
+                this.output.write(Buffer.from(dkimField + '\r\n'));
+            }
+            return setImmediate(signNextKey);
+        };
+
+        if (this.bodyHash && this.headers) {
+            return signNextKey();
+        }
+
+        this.output.write(this.parser.rawHeaders);
+        this.sendNextChunk();
+    }
+
+    createWriteCache() {
+        this.output.usingCache = true;
+        // pipe remainings to cache file
+        this.cache = fs.createWriteStream(this.cachePath);
+        this.cache.once('error', err => {
+            this.cleanup();
+            // drain input
+            this.relaxedBody.unpipe(this.cache);
+            this.relaxedBody.on('readable', () => {
+                while (this.relaxedBody.read() !== null) {
+                    // do nothing
+                }
+            });
+            this.hasErrored = true;
+            // emit error
+            this.output.emit('error', err);
+        });
+        this.cache.once('close', () => {
+            this.sendSignedOutput();
+        });
+        this.relaxedBody.removeAllListeners('readable');
+        this.relaxedBody.pipe(this.cache);
+    }
+
+    signStream() {
+        this.parser = new MessageParser();
+        this.relaxedBody = new RelaxedBody({
+            hashAlgo: this.hashAlgo
+        });
+
+        this.parser.on('headers', value => {
+            this.headers = value;
+        });
+
+        this.relaxedBody.on('hash', value => {
+            this.bodyHash = value;
+        });
+
+        this.relaxedBody.on('readable', () => {
+            let chunk;
+            if (this.cache) {
+                return;
+            }
+            while ((chunk = this.relaxedBody.read()) !== null) {
+                this.chunks.push(chunk);
+                this.chunklen += chunk.length;
+                if (this.chunklen >= this.cacheTreshold && this.cachePath) {
+                    return this.createWriteCache();
+                }
+            }
+        });
+
+        this.relaxedBody.on('end', () => {
+            if (this.cache) {
+                return;
+            }
+            this.sendSignedOutput();
+        });
+
+        this.parser.pipe(this.relaxedBody);
+        setImmediate(() => this.input.pipe(this.parser));
+    }
+}
+
+class DKIM {
+    constructor(options) {
+        this.options = options || {};
+        this.keys = [].concat(
+            this.options.keys || {
+                domainName: options.domainName,
+                keySelector: options.keySelector,
+                privateKey: options.privateKey
+            }
+        );
+    }
+
+    sign(input, extraOptions) {
+        let output = new PassThrough();
+        let inputStream = input;
+        let writeValue = false;
+
+        if (Buffer.isBuffer(input)) {
+            writeValue = input;
+            inputStream = new PassThrough();
+        } else if (typeof input === 'string') {
+            writeValue = Buffer.from(input);
+            inputStream = new PassThrough();
+        }
+
+        let options = this.options;
+        if (extraOptions && Object.keys(extraOptions).length) {
+            options = {};
+            Object.keys(this.options || {}).forEach(key => {
+                options[key] = this.options[key];
+            });
+            Object.keys(extraOptions || {}).forEach(key => {
+                if (!(key in options)) {
+                    options[key] = extraOptions[key];
+                }
+            });
+        }
+
+        let signer = new DKIMSigner(options, this.keys, inputStream, output);
+        setImmediate(() => {
+            signer.signStream();
+            if (writeValue) {
+                setImmediate(() => {
+                    inputStream.end(writeValue);
+                });
+            }
+        });
+
+        return output;
+    }
+}
+
+module.exports = DKIM;
diff --git a/backend/node_modules/nodemailer/lib/dkim/message-parser.js b/backend/node_modules/nodemailer/lib/dkim/message-parser.js
new file mode 100644
index 0000000..8ee93d2
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/dkim/message-parser.js
@@ -0,0 +1,155 @@
+'use strict';
+
+const Transform = require('stream').Transform;
+
+/**
+ * MessageParser instance is a transform stream that separates message headers
+ * from the rest of the body. Headers are emitted with the 'headers' event. Message
+ * body is passed on as the resulting stream.
+ */
+class MessageParser extends Transform {
+    constructor(options) {
+        super(options);
+        this.lastBytes = Buffer.alloc(4);
+        this.headersParsed = false;
+        this.headerBytes = 0;
+        this.headerChunks = [];
+        this.rawHeaders = false;
+        this.bodySize = 0;
+    }
+
+    /**
+     * Keeps count of the last 4 bytes in order to detect line breaks on chunk boundaries
+     *
+     * @param {Buffer} data Next data chunk from the stream
+     */
+    updateLastBytes(data) {
+        let lblen = this.lastBytes.length;
+        let nblen = Math.min(data.length, lblen);
+
+        // shift existing bytes
+        for (let i = 0, len = lblen - nblen; i < len; i++) {
+            this.lastBytes[i] = this.lastBytes[i + nblen];
+        }
+
+        // add new bytes
+        for (let i = 1; i <= nblen; i++) {
+            this.lastBytes[lblen - i] = data[data.length - i];
+        }
+    }
+
+    /**
+     * Finds and removes message headers from the remaining body. We want to keep
+     * headers separated until final delivery to be able to modify these
+     *
+     * @param {Buffer} data Next chunk of data
+     * @return {Boolean} Returns true if headers are already found or false otherwise
+     */
+    checkHeaders(data) {
+        if (this.headersParsed) {
+            return true;
+        }
+
+        let lblen = this.lastBytes.length;
+        let headerPos = 0;
+        this.curLinePos = 0;
+        for (let i = 0, len = this.lastBytes.length + data.length; i < len; i++) {
+            let chr;
+            if (i < lblen) {
+                chr = this.lastBytes[i];
+            } else {
+                chr = data[i - lblen];
+            }
+            if (chr === 0x0a && i) {
+                let pr1 = i - 1 < lblen ? this.lastBytes[i - 1] : data[i - 1 - lblen];
+                let pr2 = i > 1 ? (i - 2 < lblen ? this.lastBytes[i - 2] : data[i - 2 - lblen]) : false;
+                if (pr1 === 0x0a) {
+                    this.headersParsed = true;
+                    headerPos = i - lblen + 1;
+                    this.headerBytes += headerPos;
+                    break;
+                } else if (pr1 === 0x0d && pr2 === 0x0a) {
+                    this.headersParsed = true;
+                    headerPos = i - lblen + 1;
+                    this.headerBytes += headerPos;
+                    break;
+                }
+            }
+        }
+
+        if (this.headersParsed) {
+            this.headerChunks.push(data.slice(0, headerPos));
+            this.rawHeaders = Buffer.concat(this.headerChunks, this.headerBytes);
+            this.headerChunks = null;
+            this.emit('headers', this.parseHeaders());
+            if (data.length - 1 > headerPos) {
+                let chunk = data.slice(headerPos);
+                this.bodySize += chunk.length;
+                // this would be the first chunk of data sent downstream
+                setImmediate(() => this.push(chunk));
+            }
+            return false;
+        } else {
+            this.headerBytes += data.length;
+            this.headerChunks.push(data);
+        }
+
+        // store last 4 bytes to catch header break
+        this.updateLastBytes(data);
+
+        return false;
+    }
+
+    _transform(chunk, encoding, callback) {
+        if (!chunk || !chunk.length) {
+            return callback();
+        }
+
+        if (typeof chunk === 'string') {
+            chunk = Buffer.from(chunk, encoding);
+        }
+
+        let headersFound;
+
+        try {
+            headersFound = this.checkHeaders(chunk);
+        } catch (E) {
+            return callback(E);
+        }
+
+        if (headersFound) {
+            this.bodySize += chunk.length;
+            this.push(chunk);
+        }
+
+        setImmediate(callback);
+    }
+
+    _flush(callback) {
+        if (this.headerChunks) {
+            let chunk = Buffer.concat(this.headerChunks, this.headerBytes);
+            this.bodySize += chunk.length;
+            this.push(chunk);
+            this.headerChunks = null;
+        }
+        callback();
+    }
+
+    parseHeaders() {
+        let lines = (this.rawHeaders || '').toString().split(/\r?\n/);
+        for (let i = lines.length - 1; i > 0; i--) {
+            if (/^\s/.test(lines[i])) {
+                lines[i - 1] += '\n' + lines[i];
+                lines.splice(i, 1);
+            }
+        }
+        return lines
+            .filter(line => line.trim())
+            .map(line => ({
+                key: line.substr(0, line.indexOf(':')).trim().toLowerCase(),
+                line
+            }));
+    }
+}
+
+module.exports = MessageParser;
diff --git a/backend/node_modules/nodemailer/lib/dkim/relaxed-body.js b/backend/node_modules/nodemailer/lib/dkim/relaxed-body.js
new file mode 100644
index 0000000..03558e8
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/dkim/relaxed-body.js
@@ -0,0 +1,154 @@
+'use strict';
+
+// streams through a message body and calculates relaxed body hash
+
+const Transform = require('stream').Transform;
+const crypto = require('crypto');
+
+class RelaxedBody extends Transform {
+    constructor(options) {
+        super();
+        options = options || {};
+        this.chunkBuffer = [];
+        this.chunkBufferLen = 0;
+        this.bodyHash = crypto.createHash(options.hashAlgo || 'sha1');
+        this.remainder = '';
+        this.byteLength = 0;
+
+        this.debug = options.debug;
+        this._debugBody = options.debug ? [] : false;
+    }
+
+    updateHash(chunk) {
+        let bodyStr;
+
+        // find next remainder
+        let nextRemainder = '';
+
+        // This crux finds and removes the spaces from the last line and the newline characters after the last non-empty line
+        // If we get another chunk that does not match this description then we can restore the previously processed data
+        let state = 'file';
+        for (let i = chunk.length - 1; i >= 0; i--) {
+            let c = chunk[i];
+
+            if (state === 'file' && (c === 0x0a || c === 0x0d)) {
+                // do nothing, found \n or \r at the end of chunk, stil end of file
+            } else if (state === 'file' && (c === 0x09 || c === 0x20)) {
+                // switch to line ending mode, this is the last non-empty line
+                state = 'line';
+            } else if (state === 'line' && (c === 0x09 || c === 0x20)) {
+                // do nothing, found ' ' or \t at the end of line, keep processing the last non-empty line
+            } else if (state === 'file' || state === 'line') {
+                // non line/file ending character found, switch to body mode
+                state = 'body';
+                if (i === chunk.length - 1) {
+                    // final char is not part of line end or file end, so do nothing
+                    break;
+                }
+            }
+
+            if (i === 0) {
+                // reached to the beginning of the chunk, check if it is still about the ending
+                // and if the remainder also matches
+                if (
+                    (state === 'file' && (!this.remainder || /[\r\n]$/.test(this.remainder))) ||
+                    (state === 'line' && (!this.remainder || /[ \t]$/.test(this.remainder)))
+                ) {
+                    // keep everything
+                    this.remainder += chunk.toString('binary');
+                    return;
+                } else if (state === 'line' || state === 'file') {
+                    // process existing remainder as normal line but store the current chunk
+                    nextRemainder = chunk.toString('binary');
+                    chunk = false;
+                    break;
+                }
+            }
+
+            if (state !== 'body') {
+                continue;
+            }
+
+            // reached first non ending byte
+            nextRemainder = chunk.slice(i + 1).toString('binary');
+            chunk = chunk.slice(0, i + 1);
+            break;
+        }
+
+        let needsFixing = !!this.remainder;
+        if (chunk && !needsFixing) {
+            // check if we even need to change anything
+            for (let i = 0, len = chunk.length; i < len; i++) {
+                if (i && chunk[i] === 0x0a && chunk[i - 1] !== 0x0d) {
+                    // missing \r before \n
+                    needsFixing = true;
+                    break;
+                } else if (i && chunk[i] === 0x0d && chunk[i - 1] === 0x20) {
+                    // trailing WSP found
+                    needsFixing = true;
+                    break;
+                } else if (i && chunk[i] === 0x20 && chunk[i - 1] === 0x20) {
+                    // multiple spaces found, needs to be replaced with just one
+                    needsFixing = true;
+                    break;
+                } else if (chunk[i] === 0x09) {
+                    // TAB found, needs to be replaced with a space
+                    needsFixing = true;
+                    break;
+                }
+            }
+        }
+
+        if (needsFixing) {
+            bodyStr = this.remainder + (chunk ? chunk.toString('binary') : '');
+            this.remainder = nextRemainder;
+            bodyStr = bodyStr
+                .replace(/\r?\n/g, '\n') // use js line endings
+                .replace(/[ \t]*$/gm, '') // remove line endings, rtrim
+                .replace(/[ \t]+/gm, ' ') // single spaces
+                .replace(/\n/g, '\r\n'); // restore rfc822 line endings
+            chunk = Buffer.from(bodyStr, 'binary');
+        } else if (nextRemainder) {
+            this.remainder = nextRemainder;
+        }
+
+        if (this.debug) {
+            this._debugBody.push(chunk);
+        }
+        this.bodyHash.update(chunk);
+    }
+
+    _transform(chunk, encoding, callback) {
+        if (!chunk || !chunk.length) {
+            return callback();
+        }
+
+        if (typeof chunk === 'string') {
+            chunk = Buffer.from(chunk, encoding);
+        }
+
+        this.updateHash(chunk);
+
+        this.byteLength += chunk.length;
+        this.push(chunk);
+        callback();
+    }
+
+    _flush(callback) {
+        // generate final hash and emit it
+        if (/[\r\n]$/.test(this.remainder) && this.byteLength > 2) {
+            // add terminating line end
+            this.bodyHash.update(Buffer.from('\r\n'));
+        }
+        if (!this.byteLength) {
+            // emit empty line buffer to keep the stream flowing
+            this.push(Buffer.from('\r\n'));
+            // this.bodyHash.update(Buffer.from('\r\n'));
+        }
+
+        this.emit('hash', this.bodyHash.digest('base64'), this.debug ? Buffer.concat(this._debugBody) : false);
+        callback();
+    }
+}
+
+module.exports = RelaxedBody;
diff --git a/backend/node_modules/nodemailer/lib/dkim/sign.js b/backend/node_modules/nodemailer/lib/dkim/sign.js
new file mode 100644
index 0000000..70943b6
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/dkim/sign.js
@@ -0,0 +1,117 @@
+'use strict';
+
+const punycode = require('../punycode');
+const mimeFuncs = require('../mime-funcs');
+const crypto = require('crypto');
+
+/**
+ * Returns DKIM signature header line
+ *
+ * @param {Object} headers Parsed headers object from MessageParser
+ * @param {String} bodyHash Base64 encoded hash of the message
+ * @param {Object} options DKIM options
+ * @param {String} options.domainName Domain name to be signed for
+ * @param {String} options.keySelector DKIM key selector to use
+ * @param {String} options.privateKey DKIM private key to use
+ * @return {String} Complete header line
+ */
+
+module.exports = (headers, hashAlgo, bodyHash, options) => {
+    options = options || {};
+
+    // all listed fields from RFC4871 #5.5
+    let defaultFieldNames =
+        'From:Sender:Reply-To:Subject:Date:Message-ID:To:' +
+        'Cc:MIME-Version:Content-Type:Content-Transfer-Encoding:Content-ID:' +
+        'Content-Description:Resent-Date:Resent-From:Resent-Sender:' +
+        'Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:' +
+        'List-Id:List-Help:List-Unsubscribe:List-Subscribe:List-Post:' +
+        'List-Owner:List-Archive';
+
+    let fieldNames = options.headerFieldNames || defaultFieldNames;
+
+    let canonicalizedHeaderData = relaxedHeaders(headers, fieldNames, options.skipFields);
+    let dkimHeader = generateDKIMHeader(options.domainName, options.keySelector, canonicalizedHeaderData.fieldNames, hashAlgo, bodyHash);
+
+    let signer, signature;
+
+    canonicalizedHeaderData.headers += 'dkim-signature:' + relaxedHeaderLine(dkimHeader);
+
+    signer = crypto.createSign(('rsa-' + hashAlgo).toUpperCase());
+    signer.update(canonicalizedHeaderData.headers);
+    try {
+        signature = signer.sign(options.privateKey, 'base64');
+    } catch (E) {
+        return false;
+    }
+
+    return dkimHeader + signature.replace(/(^.{73}|.{75}(?!\r?\n|\r))/g, '$&\r\n ').trim();
+};
+
+module.exports.relaxedHeaders = relaxedHeaders;
+
+function generateDKIMHeader(domainName, keySelector, fieldNames, hashAlgo, bodyHash) {
+    let dkim = [
+        'v=1',
+        'a=rsa-' + hashAlgo,
+        'c=relaxed/relaxed',
+        'd=' + punycode.toASCII(domainName),
+        'q=dns/txt',
+        's=' + keySelector,
+        'bh=' + bodyHash,
+        'h=' + fieldNames
+    ].join('; ');
+
+    return mimeFuncs.foldLines('DKIM-Signature: ' + dkim, 76) + ';\r\n b=';
+}
+
+function relaxedHeaders(headers, fieldNames, skipFields) {
+    let includedFields = new Set();
+    let skip = new Set();
+    let headerFields = new Map();
+
+    (skipFields || '')
+        .toLowerCase()
+        .split(':')
+        .forEach(field => {
+            skip.add(field.trim());
+        });
+
+    (fieldNames || '')
+        .toLowerCase()
+        .split(':')
+        .filter(field => !skip.has(field.trim()))
+        .forEach(field => {
+            includedFields.add(field.trim());
+        });
+
+    for (let i = headers.length - 1; i >= 0; i--) {
+        let line = headers[i];
+        // only include the first value from bottom to top
+        if (includedFields.has(line.key) && !headerFields.has(line.key)) {
+            headerFields.set(line.key, relaxedHeaderLine(line.line));
+        }
+    }
+
+    let headersList = [];
+    let fields = [];
+    includedFields.forEach(field => {
+        if (headerFields.has(field)) {
+            fields.push(field);
+            headersList.push(field + ':' + headerFields.get(field));
+        }
+    });
+
+    return {
+        headers: headersList.join('\r\n') + '\r\n',
+        fieldNames: fields.join(':')
+    };
+}
+
+function relaxedHeaderLine(line) {
+    return line
+        .substr(line.indexOf(':') + 1)
+        .replace(/\r?\n/g, '')
+        .replace(/\s+/g, ' ')
+        .trim();
+}
diff --git a/backend/node_modules/nodemailer/lib/fetch/cookies.js b/backend/node_modules/nodemailer/lib/fetch/cookies.js
new file mode 100644
index 0000000..917b840
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/fetch/cookies.js
@@ -0,0 +1,281 @@
+'use strict';
+
+// module to handle cookies
+
+const urllib = require('url');
+
+const SESSION_TIMEOUT = 1800; // 30 min
+
+/**
+ * Creates a biskviit cookie jar for managing cookie values in memory
+ *
+ * @constructor
+ * @param {Object} [options] Optional options object
+ */
+class Cookies {
+    constructor(options) {
+        this.options = options || {};
+        this.cookies = [];
+    }
+
+    /**
+     * Stores a cookie string to the cookie storage
+     *
+     * @param {String} cookieStr Value from the 'Set-Cookie:' header
+     * @param {String} url Current URL
+     */
+    set(cookieStr, url) {
+        let urlparts = urllib.parse(url || '');
+        let cookie = this.parse(cookieStr);
+        let domain;
+
+        if (cookie.domain) {
+            domain = cookie.domain.replace(/^\./, '');
+
+            // do not allow cross origin cookies
+            if (
+                // can't be valid if the requested domain is shorter than current hostname
+                urlparts.hostname.length < domain.length ||
+                // prefix domains with dot to be sure that partial matches are not used
+                ('.' + urlparts.hostname).substr(-domain.length + 1) !== '.' + domain
+            ) {
+                cookie.domain = urlparts.hostname;
+            }
+        } else {
+            cookie.domain = urlparts.hostname;
+        }
+
+        if (!cookie.path) {
+            cookie.path = this.getPath(urlparts.pathname);
+        }
+
+        // if no expire date, then use sessionTimeout value
+        if (!cookie.expires) {
+            cookie.expires = new Date(Date.now() + (Number(this.options.sessionTimeout || SESSION_TIMEOUT) || SESSION_TIMEOUT) * 1000);
+        }
+
+        return this.add(cookie);
+    }
+
+    /**
+     * Returns cookie string for the 'Cookie:' header.
+     *
+     * @param {String} url URL to check for
+     * @returns {String} Cookie header or empty string if no matches were found
+     */
+    get(url) {
+        return this.list(url)
+            .map(cookie => cookie.name + '=' + cookie.value)
+            .join('; ');
+    }
+
+    /**
+     * Lists all valied cookie objects for the specified URL
+     *
+     * @param {String} url URL to check for
+     * @returns {Array} An array of cookie objects
+     */
+    list(url) {
+        let result = [];
+        let i;
+        let cookie;
+
+        for (i = this.cookies.length - 1; i >= 0; i--) {
+            cookie = this.cookies[i];
+
+            if (this.isExpired(cookie)) {
+                this.cookies.splice(i, i);
+                continue;
+            }
+
+            if (this.match(cookie, url)) {
+                result.unshift(cookie);
+            }
+        }
+
+        return result;
+    }
+
+    /**
+     * Parses cookie string from the 'Set-Cookie:' header
+     *
+     * @param {String} cookieStr String from the 'Set-Cookie:' header
+     * @returns {Object} Cookie object
+     */
+    parse(cookieStr) {
+        let cookie = {};
+
+        (cookieStr || '')
+            .toString()
+            .split(';')
+            .forEach(cookiePart => {
+                let valueParts = cookiePart.split('=');
+                let key = valueParts.shift().trim().toLowerCase();
+                let value = valueParts.join('=').trim();
+                let domain;
+
+                if (!key) {
+                    // skip empty parts
+                    return;
+                }
+
+                switch (key) {
+                    case 'expires':
+                        value = new Date(value);
+                        // ignore date if can not parse it
+                        if (value.toString() !== 'Invalid Date') {
+                            cookie.expires = value;
+                        }
+                        break;
+
+                    case 'path':
+                        cookie.path = value;
+                        break;
+
+                    case 'domain':
+                        domain = value.toLowerCase();
+                        if (domain.length && domain.charAt(0) !== '.') {
+                            domain = '.' + domain; // ensure preceeding dot for user set domains
+                        }
+                        cookie.domain = domain;
+                        break;
+
+                    case 'max-age':
+                        cookie.expires = new Date(Date.now() + (Number(value) || 0) * 1000);
+                        break;
+
+                    case 'secure':
+                        cookie.secure = true;
+                        break;
+
+                    case 'httponly':
+                        cookie.httponly = true;
+                        break;
+
+                    default:
+                        if (!cookie.name) {
+                            cookie.name = key;
+                            cookie.value = value;
+                        }
+                }
+            });
+
+        return cookie;
+    }
+
+    /**
+     * Checks if a cookie object is valid for a specified URL
+     *
+     * @param {Object} cookie Cookie object
+     * @param {String} url URL to check for
+     * @returns {Boolean} true if cookie is valid for specifiec URL
+     */
+    match(cookie, url) {
+        let urlparts = urllib.parse(url || '');
+
+        // check if hostname matches
+        // .foo.com also matches subdomains, foo.com does not
+        if (
+            urlparts.hostname !== cookie.domain &&
+            (cookie.domain.charAt(0) !== '.' || ('.' + urlparts.hostname).substr(-cookie.domain.length) !== cookie.domain)
+        ) {
+            return false;
+        }
+
+        // check if path matches
+        let path = this.getPath(urlparts.pathname);
+        if (path.substr(0, cookie.path.length) !== cookie.path) {
+            return false;
+        }
+
+        // check secure argument
+        if (cookie.secure && urlparts.protocol !== 'https:') {
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Adds (or updates/removes if needed) a cookie object to the cookie storage
+     *
+     * @param {Object} cookie Cookie value to be stored
+     */
+    add(cookie) {
+        let i;
+        let len;
+
+        // nothing to do here
+        if (!cookie || !cookie.name) {
+            return false;
+        }
+
+        // overwrite if has same params
+        for (i = 0, len = this.cookies.length; i < len; i++) {
+            if (this.compare(this.cookies[i], cookie)) {
+                // check if the cookie needs to be removed instead
+                if (this.isExpired(cookie)) {
+                    this.cookies.splice(i, 1); // remove expired/unset cookie
+                    return false;
+                }
+
+                this.cookies[i] = cookie;
+                return true;
+            }
+        }
+
+        // add as new if not already expired
+        if (!this.isExpired(cookie)) {
+            this.cookies.push(cookie);
+        }
+
+        return true;
+    }
+
+    /**
+     * Checks if two cookie objects are the same
+     *
+     * @param {Object} a Cookie to check against
+     * @param {Object} b Cookie to check against
+     * @returns {Boolean} True, if the cookies are the same
+     */
+    compare(a, b) {
+        return a.name === b.name && a.path === b.path && a.domain === b.domain && a.secure === b.secure && a.httponly === a.httponly;
+    }
+
+    /**
+     * Checks if a cookie is expired
+     *
+     * @param {Object} cookie Cookie object to check against
+     * @returns {Boolean} True, if the cookie is expired
+     */
+    isExpired(cookie) {
+        return (cookie.expires && cookie.expires < new Date()) || !cookie.value;
+    }
+
+    /**
+     * Returns normalized cookie path for an URL path argument
+     *
+     * @param {String} pathname
+     * @returns {String} Normalized path
+     */
+    getPath(pathname) {
+        let path = (pathname || '/').split('/');
+        path.pop(); // remove filename part
+        path = path.join('/').trim();
+
+        // ensure path prefix /
+        if (path.charAt(0) !== '/') {
+            path = '/' + path;
+        }
+
+        // ensure path suffix /
+        if (path.substr(-1) !== '/') {
+            path += '/';
+        }
+
+        return path;
+    }
+}
+
+module.exports = Cookies;
diff --git a/backend/node_modules/nodemailer/lib/fetch/index.js b/backend/node_modules/nodemailer/lib/fetch/index.js
new file mode 100644
index 0000000..2e73dbd
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/fetch/index.js
@@ -0,0 +1,274 @@
+'use strict';
+
+const http = require('http');
+const https = require('https');
+const urllib = require('url');
+const zlib = require('zlib');
+const PassThrough = require('stream').PassThrough;
+const Cookies = require('./cookies');
+const packageData = require('../../package.json');
+const net = require('net');
+
+const MAX_REDIRECTS = 5;
+
+module.exports = function (url, options) {
+    return nmfetch(url, options);
+};
+
+module.exports.Cookies = Cookies;
+
+function nmfetch(url, options) {
+    options = options || {};
+
+    options.fetchRes = options.fetchRes || new PassThrough();
+    options.cookies = options.cookies || new Cookies();
+    options.redirects = options.redirects || 0;
+    options.maxRedirects = isNaN(options.maxRedirects) ? MAX_REDIRECTS : options.maxRedirects;
+
+    if (options.cookie) {
+        [].concat(options.cookie || []).forEach(cookie => {
+            options.cookies.set(cookie, url);
+        });
+        options.cookie = false;
+    }
+
+    let fetchRes = options.fetchRes;
+    let parsed = urllib.parse(url);
+    let method = (options.method || '').toString().trim().toUpperCase() || 'GET';
+    let finished = false;
+    let cookies;
+    let body;
+
+    let handler = parsed.protocol === 'https:' ? https : http;
+
+    let headers = {
+        'accept-encoding': 'gzip,deflate',
+        'user-agent': 'nodemailer/' + packageData.version
+    };
+
+    Object.keys(options.headers || {}).forEach(key => {
+        headers[key.toLowerCase().trim()] = options.headers[key];
+    });
+
+    if (options.userAgent) {
+        headers['user-agent'] = options.userAgent;
+    }
+
+    if (parsed.auth) {
+        headers.Authorization = 'Basic ' + Buffer.from(parsed.auth).toString('base64');
+    }
+
+    if ((cookies = options.cookies.get(url))) {
+        headers.cookie = cookies;
+    }
+
+    if (options.body) {
+        if (options.contentType !== false) {
+            headers['Content-Type'] = options.contentType || 'application/x-www-form-urlencoded';
+        }
+
+        if (typeof options.body.pipe === 'function') {
+            // it's a stream
+            headers['Transfer-Encoding'] = 'chunked';
+            body = options.body;
+            body.on('error', err => {
+                if (finished) {
+                    return;
+                }
+                finished = true;
+                err.type = 'FETCH';
+                err.sourceUrl = url;
+                fetchRes.emit('error', err);
+            });
+        } else {
+            if (options.body instanceof Buffer) {
+                body = options.body;
+            } else if (typeof options.body === 'object') {
+                try {
+                    // encodeURIComponent can fail on invalid input (partial emoji etc.)
+                    body = Buffer.from(
+                        Object.keys(options.body)
+                            .map(key => {
+                                let value = options.body[key].toString().trim();
+                                return encodeURIComponent(key) + '=' + encodeURIComponent(value);
+                            })
+                            .join('&')
+                    );
+                } catch (E) {
+                    if (finished) {
+                        return;
+                    }
+                    finished = true;
+                    E.type = 'FETCH';
+                    E.sourceUrl = url;
+                    fetchRes.emit('error', E);
+                    return;
+                }
+            } else {
+                body = Buffer.from(options.body.toString().trim());
+            }
+
+            headers['Content-Type'] = options.contentType || 'application/x-www-form-urlencoded';
+            headers['Content-Length'] = body.length;
+        }
+        // if method is not provided, use POST instead of GET
+        method = (options.method || '').toString().trim().toUpperCase() || 'POST';
+    }
+
+    let req;
+    let reqOptions = {
+        method,
+        host: parsed.hostname,
+        path: parsed.path,
+        port: parsed.port ? parsed.port : parsed.protocol === 'https:' ? 443 : 80,
+        headers,
+        rejectUnauthorized: false,
+        agent: false
+    };
+
+    if (options.tls) {
+        Object.keys(options.tls).forEach(key => {
+            reqOptions[key] = options.tls[key];
+        });
+    }
+
+    if (parsed.protocol === 'https:' && parsed.hostname && parsed.hostname !== reqOptions.host && !net.isIP(parsed.hostname) && !reqOptions.servername) {
+        reqOptions.servername = parsed.hostname;
+    }
+
+    try {
+        req = handler.request(reqOptions);
+    } catch (E) {
+        finished = true;
+        setImmediate(() => {
+            E.type = 'FETCH';
+            E.sourceUrl = url;
+            fetchRes.emit('error', E);
+        });
+        return fetchRes;
+    }
+
+    if (options.timeout) {
+        req.setTimeout(options.timeout, () => {
+            if (finished) {
+                return;
+            }
+            finished = true;
+            req.abort();
+            let err = new Error('Request Timeout');
+            err.type = 'FETCH';
+            err.sourceUrl = url;
+            fetchRes.emit('error', err);
+        });
+    }
+
+    req.on('error', err => {
+        if (finished) {
+            return;
+        }
+        finished = true;
+        err.type = 'FETCH';
+        err.sourceUrl = url;
+        fetchRes.emit('error', err);
+    });
+
+    req.on('response', res => {
+        let inflate;
+
+        if (finished) {
+            return;
+        }
+
+        switch (res.headers['content-encoding']) {
+            case 'gzip':
+            case 'deflate':
+                inflate = zlib.createUnzip();
+                break;
+        }
+
+        if (res.headers['set-cookie']) {
+            [].concat(res.headers['set-cookie'] || []).forEach(cookie => {
+                options.cookies.set(cookie, url);
+            });
+        }
+
+        if ([301, 302, 303, 307, 308].includes(res.statusCode) && res.headers.location) {
+            // redirect
+            options.redirects++;
+            if (options.redirects > options.maxRedirects) {
+                finished = true;
+                let err = new Error('Maximum redirect count exceeded');
+                err.type = 'FETCH';
+                err.sourceUrl = url;
+                fetchRes.emit('error', err);
+                req.abort();
+                return;
+            }
+            // redirect does not include POST body
+            options.method = 'GET';
+            options.body = false;
+            return nmfetch(urllib.resolve(url, res.headers.location), options);
+        }
+
+        fetchRes.statusCode = res.statusCode;
+        fetchRes.headers = res.headers;
+
+        if (res.statusCode >= 300 && !options.allowErrorResponse) {
+            finished = true;
+            let err = new Error('Invalid status code ' + res.statusCode);
+            err.type = 'FETCH';
+            err.sourceUrl = url;
+            fetchRes.emit('error', err);
+            req.abort();
+            return;
+        }
+
+        res.on('error', err => {
+            if (finished) {
+                return;
+            }
+            finished = true;
+            err.type = 'FETCH';
+            err.sourceUrl = url;
+            fetchRes.emit('error', err);
+            req.abort();
+        });
+
+        if (inflate) {
+            res.pipe(inflate).pipe(fetchRes);
+            inflate.on('error', err => {
+                if (finished) {
+                    return;
+                }
+                finished = true;
+                err.type = 'FETCH';
+                err.sourceUrl = url;
+                fetchRes.emit('error', err);
+                req.abort();
+            });
+        } else {
+            res.pipe(fetchRes);
+        }
+    });
+
+    setImmediate(() => {
+        if (body) {
+            try {
+                if (typeof body.pipe === 'function') {
+                    return body.pipe(req);
+                } else {
+                    req.write(body);
+                }
+            } catch (err) {
+                finished = true;
+                err.type = 'FETCH';
+                err.sourceUrl = url;
+                fetchRes.emit('error', err);
+                return;
+            }
+        }
+        req.end();
+    });
+
+    return fetchRes;
+}
diff --git a/backend/node_modules/nodemailer/lib/json-transport/index.js b/backend/node_modules/nodemailer/lib/json-transport/index.js
new file mode 100644
index 0000000..769bde6
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/json-transport/index.js
@@ -0,0 +1,82 @@
+'use strict';
+
+const packageData = require('../../package.json');
+const shared = require('../shared');
+
+/**
+ * Generates a Transport object to generate JSON output
+ *
+ * @constructor
+ * @param {Object} optional config parameter
+ */
+class JSONTransport {
+    constructor(options) {
+        options = options || {};
+
+        this.options = options || {};
+
+        this.name = 'JSONTransport';
+        this.version = packageData.version;
+
+        this.logger = shared.getLogger(this.options, {
+            component: this.options.component || 'json-transport'
+        });
+    }
+
+    /**
+     * <p>Compiles a mailcomposer message and forwards it to handler that sends it.</p>
+     *
+     * @param {Object} emailMessage MailComposer object
+     * @param {Function} callback Callback function to run when the sending is completed
+     */
+    send(mail, done) {
+        // Sendmail strips this header line by itself
+        mail.message.keepBcc = true;
+
+        let envelope = mail.data.envelope || mail.message.getEnvelope();
+        let messageId = mail.message.messageId();
+
+        let recipients = [].concat(envelope.to || []);
+        if (recipients.length > 3) {
+            recipients.push('...and ' + recipients.splice(2).length + ' more');
+        }
+        this.logger.info(
+            {
+                tnx: 'send',
+                messageId
+            },
+            'Composing JSON structure of %s to <%s>',
+            messageId,
+            recipients.join(', ')
+        );
+
+        setImmediate(() => {
+            mail.normalize((err, data) => {
+                if (err) {
+                    this.logger.error(
+                        {
+                            err,
+                            tnx: 'send',
+                            messageId
+                        },
+                        'Failed building JSON structure for %s. %s',
+                        messageId,
+                        err.message
+                    );
+                    return done(err);
+                }
+
+                delete data.envelope;
+                delete data.normalizedHeaders;
+
+                return done(null, {
+                    envelope,
+                    messageId,
+                    message: this.options.skipEncoding ? data : JSON.stringify(data)
+                });
+            });
+        });
+    }
+}
+
+module.exports = JSONTransport;
diff --git a/backend/node_modules/nodemailer/lib/mail-composer/index.js b/backend/node_modules/nodemailer/lib/mail-composer/index.js
new file mode 100644
index 0000000..7e90215
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/mail-composer/index.js
@@ -0,0 +1,565 @@
+/* eslint no-undefined: 0 */
+
+'use strict';
+
+const MimeNode = require('../mime-node');
+const mimeFuncs = require('../mime-funcs');
+const parseDataURI = require('../shared').parseDataURI;
+
+/**
+ * Creates the object for composing a MimeNode instance out from the mail options
+ *
+ * @constructor
+ * @param {Object} mail Mail options
+ */
+class MailComposer {
+    constructor(mail) {
+        this.mail = mail || {};
+        this.message = false;
+    }
+
+    /**
+     * Builds MimeNode instance
+     */
+    compile() {
+        this._alternatives = this.getAlternatives();
+        this._htmlNode = this._alternatives.filter(alternative => /^text\/html\b/i.test(alternative.contentType)).pop();
+        this._attachments = this.getAttachments(!!this._htmlNode);
+
+        this._useRelated = !!(this._htmlNode && this._attachments.related.length);
+        this._useAlternative = this._alternatives.length > 1;
+        this._useMixed = this._attachments.attached.length > 1 || (this._alternatives.length && this._attachments.attached.length === 1);
+
+        // Compose MIME tree
+        if (this.mail.raw) {
+            this.message = new MimeNode('message/rfc822', { newline: this.mail.newline }).setRaw(this.mail.raw);
+        } else if (this._useMixed) {
+            this.message = this._createMixed();
+        } else if (this._useAlternative) {
+            this.message = this._createAlternative();
+        } else if (this._useRelated) {
+            this.message = this._createRelated();
+        } else {
+            this.message = this._createContentNode(
+                false,
+                []
+                    .concat(this._alternatives || [])
+                    .concat(this._attachments.attached || [])
+                    .shift() || {
+                    contentType: 'text/plain',
+                    content: ''
+                }
+            );
+        }
+
+        // Add custom headers
+        if (this.mail.headers) {
+            this.message.addHeader(this.mail.headers);
+        }
+
+        // Add headers to the root node, always overrides custom headers
+        ['from', 'sender', 'to', 'cc', 'bcc', 'reply-to', 'in-reply-to', 'references', 'subject', 'message-id', 'date'].forEach(header => {
+            let key = header.replace(/-(\w)/g, (o, c) => c.toUpperCase());
+            if (this.mail[key]) {
+                this.message.setHeader(header, this.mail[key]);
+            }
+        });
+
+        // Sets custom envelope
+        if (this.mail.envelope) {
+            this.message.setEnvelope(this.mail.envelope);
+        }
+
+        // ensure Message-Id value
+        this.message.messageId();
+
+        return this.message;
+    }
+
+    /**
+     * List all attachments. Resulting attachment objects can be used as input for MimeNode nodes
+     *
+     * @param {Boolean} findRelated If true separate related attachments from attached ones
+     * @returns {Object} An object of arrays (`related` and `attached`)
+     */
+    getAttachments(findRelated) {
+        let icalEvent, eventObject;
+        let attachments = [].concat(this.mail.attachments || []).map((attachment, i) => {
+            let data;
+            let isMessageNode = /^message\//i.test(attachment.contentType);
+
+            if (/^data:/i.test(attachment.path || attachment.href)) {
+                attachment = this._processDataUrl(attachment);
+            }
+
+            let contentType = attachment.contentType || mimeFuncs.detectMimeType(attachment.filename || attachment.path || attachment.href || 'bin');
+            let isImage = /^image\//i.test(contentType);
+            let contentDisposition = attachment.contentDisposition || (isMessageNode || (isImage && attachment.cid) ? 'inline' : 'attachment');
+
+            data = {
+                contentType,
+                contentDisposition,
+                contentTransferEncoding: 'contentTransferEncoding' in attachment ? attachment.contentTransferEncoding : 'base64'
+            };
+
+            if (attachment.filename) {
+                data.filename = attachment.filename;
+            } else if (!isMessageNode && attachment.filename !== false) {
+                data.filename = (attachment.path || attachment.href || '').split('/').pop().split('?').shift() || 'attachment-' + (i + 1);
+                if (data.filename.indexOf('.') < 0) {
+                    data.filename += '.' + mimeFuncs.detectExtension(data.contentType);
+                }
+            }
+
+            if (/^https?:\/\//i.test(attachment.path)) {
+                attachment.href = attachment.path;
+                attachment.path = undefined;
+            }
+
+            if (attachment.cid) {
+                data.cid = attachment.cid;
+            }
+
+            if (attachment.raw) {
+                data.raw = attachment.raw;
+            } else if (attachment.path) {
+                data.content = {
+                    path: attachment.path
+                };
+            } else if (attachment.href) {
+                data.content = {
+                    href: attachment.href,
+                    httpHeaders: attachment.httpHeaders
+                };
+            } else {
+                data.content = attachment.content || '';
+            }
+
+            if (attachment.encoding) {
+                data.encoding = attachment.encoding;
+            }
+
+            if (attachment.headers) {
+                data.headers = attachment.headers;
+            }
+
+            return data;
+        });
+
+        if (this.mail.icalEvent) {
+            if (
+                typeof this.mail.icalEvent === 'object' &&
+                (this.mail.icalEvent.content || this.mail.icalEvent.path || this.mail.icalEvent.href || this.mail.icalEvent.raw)
+            ) {
+                icalEvent = this.mail.icalEvent;
+            } else {
+                icalEvent = {
+                    content: this.mail.icalEvent
+                };
+            }
+
+            eventObject = {};
+            Object.keys(icalEvent).forEach(key => {
+                eventObject[key] = icalEvent[key];
+            });
+
+            eventObject.contentType = 'application/ics';
+            if (!eventObject.headers) {
+                eventObject.headers = {};
+            }
+            eventObject.filename = eventObject.filename || 'invite.ics';
+            eventObject.headers['Content-Disposition'] = 'attachment';
+            eventObject.headers['Content-Transfer-Encoding'] = 'base64';
+        }
+
+        if (!findRelated) {
+            return {
+                attached: attachments.concat(eventObject || []),
+                related: []
+            };
+        } else {
+            return {
+                attached: attachments.filter(attachment => !attachment.cid).concat(eventObject || []),
+                related: attachments.filter(attachment => !!attachment.cid)
+            };
+        }
+    }
+
+    /**
+     * List alternatives. Resulting objects can be used as input for MimeNode nodes
+     *
+     * @returns {Array} An array of alternative elements. Includes the `text` and `html` values as well
+     */
+    getAlternatives() {
+        let alternatives = [],
+            text,
+            html,
+            watchHtml,
+            amp,
+            icalEvent,
+            eventObject;
+
+        if (this.mail.text) {
+            if (typeof this.mail.text === 'object' && (this.mail.text.content || this.mail.text.path || this.mail.text.href || this.mail.text.raw)) {
+                text = this.mail.text;
+            } else {
+                text = {
+                    content: this.mail.text
+                };
+            }
+            text.contentType = 'text/plain; charset=utf-8';
+        }
+
+        if (this.mail.watchHtml) {
+            if (
+                typeof this.mail.watchHtml === 'object' &&
+                (this.mail.watchHtml.content || this.mail.watchHtml.path || this.mail.watchHtml.href || this.mail.watchHtml.raw)
+            ) {
+                watchHtml = this.mail.watchHtml;
+            } else {
+                watchHtml = {
+                    content: this.mail.watchHtml
+                };
+            }
+            watchHtml.contentType = 'text/watch-html; charset=utf-8';
+        }
+
+        if (this.mail.amp) {
+            if (typeof this.mail.amp === 'object' && (this.mail.amp.content || this.mail.amp.path || this.mail.amp.href || this.mail.amp.raw)) {
+                amp = this.mail.amp;
+            } else {
+                amp = {
+                    content: this.mail.amp
+                };
+            }
+            amp.contentType = 'text/x-amp-html; charset=utf-8';
+        }
+
+        // NB! when including attachments with a calendar alternative you might end up in a blank screen on some clients
+        if (this.mail.icalEvent) {
+            if (
+                typeof this.mail.icalEvent === 'object' &&
+                (this.mail.icalEvent.content || this.mail.icalEvent.path || this.mail.icalEvent.href || this.mail.icalEvent.raw)
+            ) {
+                icalEvent = this.mail.icalEvent;
+            } else {
+                icalEvent = {
+                    content: this.mail.icalEvent
+                };
+            }
+
+            eventObject = {};
+            Object.keys(icalEvent).forEach(key => {
+                eventObject[key] = icalEvent[key];
+            });
+
+            if (eventObject.content && typeof eventObject.content === 'object') {
+                // we are going to have the same attachment twice, so mark this to be
+                // resolved just once
+                eventObject.content._resolve = true;
+            }
+
+            eventObject.filename = false;
+            eventObject.contentType = 'text/calendar; charset=utf-8; method=' + (eventObject.method || 'PUBLISH').toString().trim().toUpperCase();
+            if (!eventObject.headers) {
+                eventObject.headers = {};
+            }
+        }
+
+        if (this.mail.html) {
+            if (typeof this.mail.html === 'object' && (this.mail.html.content || this.mail.html.path || this.mail.html.href || this.mail.html.raw)) {
+                html = this.mail.html;
+            } else {
+                html = {
+                    content: this.mail.html
+                };
+            }
+            html.contentType = 'text/html; charset=utf-8';
+        }
+
+        []
+            .concat(text || [])
+            .concat(watchHtml || [])
+            .concat(amp || [])
+            .concat(html || [])
+            .concat(eventObject || [])
+            .concat(this.mail.alternatives || [])
+            .forEach(alternative => {
+                let data;
+
+                if (/^data:/i.test(alternative.path || alternative.href)) {
+                    alternative = this._processDataUrl(alternative);
+                }
+
+                data = {
+                    contentType: alternative.contentType || mimeFuncs.detectMimeType(alternative.filename || alternative.path || alternative.href || 'txt'),
+                    contentTransferEncoding: alternative.contentTransferEncoding
+                };
+
+                if (alternative.filename) {
+                    data.filename = alternative.filename;
+                }
+
+                if (/^https?:\/\//i.test(alternative.path)) {
+                    alternative.href = alternative.path;
+                    alternative.path = undefined;
+                }
+
+                if (alternative.raw) {
+                    data.raw = alternative.raw;
+                } else if (alternative.path) {
+                    data.content = {
+                        path: alternative.path
+                    };
+                } else if (alternative.href) {
+                    data.content = {
+                        href: alternative.href
+                    };
+                } else {
+                    data.content = alternative.content || '';
+                }
+
+                if (alternative.encoding) {
+                    data.encoding = alternative.encoding;
+                }
+
+                if (alternative.headers) {
+                    data.headers = alternative.headers;
+                }
+
+                alternatives.push(data);
+            });
+
+        return alternatives;
+    }
+
+    /**
+     * Builds multipart/mixed node. It should always contain different type of elements on the same level
+     * eg. text + attachments
+     *
+     * @param {Object} parentNode Parent for this note. If it does not exist, a root node is created
+     * @returns {Object} MimeNode node element
+     */
+    _createMixed(parentNode) {
+        let node;
+
+        if (!parentNode) {
+            node = new MimeNode('multipart/mixed', {
+                baseBoundary: this.mail.baseBoundary,
+                textEncoding: this.mail.textEncoding,
+                boundaryPrefix: this.mail.boundaryPrefix,
+                disableUrlAccess: this.mail.disableUrlAccess,
+                disableFileAccess: this.mail.disableFileAccess,
+                normalizeHeaderKey: this.mail.normalizeHeaderKey,
+                newline: this.mail.newline
+            });
+        } else {
+            node = parentNode.createChild('multipart/mixed', {
+                disableUrlAccess: this.mail.disableUrlAccess,
+                disableFileAccess: this.mail.disableFileAccess,
+                normalizeHeaderKey: this.mail.normalizeHeaderKey,
+                newline: this.mail.newline
+            });
+        }
+
+        if (this._useAlternative) {
+            this._createAlternative(node);
+        } else if (this._useRelated) {
+            this._createRelated(node);
+        }
+
+        []
+            .concat((!this._useAlternative && this._alternatives) || [])
+            .concat(this._attachments.attached || [])
+            .forEach(element => {
+                // if the element is a html node from related subpart then ignore it
+                if (!this._useRelated || element !== this._htmlNode) {
+                    this._createContentNode(node, element);
+                }
+            });
+
+        return node;
+    }
+
+    /**
+     * Builds multipart/alternative node. It should always contain same type of elements on the same level
+     * eg. text + html view of the same data
+     *
+     * @param {Object} parentNode Parent for this note. If it does not exist, a root node is created
+     * @returns {Object} MimeNode node element
+     */
+    _createAlternative(parentNode) {
+        let node;
+
+        if (!parentNode) {
+            node = new MimeNode('multipart/alternative', {
+                baseBoundary: this.mail.baseBoundary,
+                textEncoding: this.mail.textEncoding,
+                boundaryPrefix: this.mail.boundaryPrefix,
+                disableUrlAccess: this.mail.disableUrlAccess,
+                disableFileAccess: this.mail.disableFileAccess,
+                normalizeHeaderKey: this.mail.normalizeHeaderKey,
+                newline: this.mail.newline
+            });
+        } else {
+            node = parentNode.createChild('multipart/alternative', {
+                disableUrlAccess: this.mail.disableUrlAccess,
+                disableFileAccess: this.mail.disableFileAccess,
+                normalizeHeaderKey: this.mail.normalizeHeaderKey,
+                newline: this.mail.newline
+            });
+        }
+
+        this._alternatives.forEach(alternative => {
+            if (this._useRelated && this._htmlNode === alternative) {
+                this._createRelated(node);
+            } else {
+                this._createContentNode(node, alternative);
+            }
+        });
+
+        return node;
+    }
+
+    /**
+     * Builds multipart/related node. It should always contain html node with related attachments
+     *
+     * @param {Object} parentNode Parent for this note. If it does not exist, a root node is created
+     * @returns {Object} MimeNode node element
+     */
+    _createRelated(parentNode) {
+        let node;
+
+        if (!parentNode) {
+            node = new MimeNode('multipart/related; type="text/html"', {
+                baseBoundary: this.mail.baseBoundary,
+                textEncoding: this.mail.textEncoding,
+                boundaryPrefix: this.mail.boundaryPrefix,
+                disableUrlAccess: this.mail.disableUrlAccess,
+                disableFileAccess: this.mail.disableFileAccess,
+                normalizeHeaderKey: this.mail.normalizeHeaderKey,
+                newline: this.mail.newline
+            });
+        } else {
+            node = parentNode.createChild('multipart/related; type="text/html"', {
+                disableUrlAccess: this.mail.disableUrlAccess,
+                disableFileAccess: this.mail.disableFileAccess,
+                normalizeHeaderKey: this.mail.normalizeHeaderKey,
+                newline: this.mail.newline
+            });
+        }
+
+        this._createContentNode(node, this._htmlNode);
+
+        this._attachments.related.forEach(alternative => this._createContentNode(node, alternative));
+
+        return node;
+    }
+
+    /**
+     * Creates a regular node with contents
+     *
+     * @param {Object} parentNode Parent for this note. If it does not exist, a root node is created
+     * @param {Object} element Node data
+     * @returns {Object} MimeNode node element
+     */
+    _createContentNode(parentNode, element) {
+        element = element || {};
+        element.content = element.content || '';
+
+        let node;
+        let encoding = (element.encoding || 'utf8')
+            .toString()
+            .toLowerCase()
+            .replace(/[-_\s]/g, '');
+
+        if (!parentNode) {
+            node = new MimeNode(element.contentType, {
+                filename: element.filename,
+                baseBoundary: this.mail.baseBoundary,
+                textEncoding: this.mail.textEncoding,
+                boundaryPrefix: this.mail.boundaryPrefix,
+                disableUrlAccess: this.mail.disableUrlAccess,
+                disableFileAccess: this.mail.disableFileAccess,
+                normalizeHeaderKey: this.mail.normalizeHeaderKey,
+                newline: this.mail.newline
+            });
+        } else {
+            node = parentNode.createChild(element.contentType, {
+                filename: element.filename,
+                textEncoding: this.mail.textEncoding,
+                disableUrlAccess: this.mail.disableUrlAccess,
+                disableFileAccess: this.mail.disableFileAccess,
+                normalizeHeaderKey: this.mail.normalizeHeaderKey,
+                newline: this.mail.newline
+            });
+        }
+
+        // add custom headers
+        if (element.headers) {
+            node.addHeader(element.headers);
+        }
+
+        if (element.cid) {
+            node.setHeader('Content-Id', '<' + element.cid.replace(/[<>]/g, '') + '>');
+        }
+
+        if (element.contentTransferEncoding) {
+            node.setHeader('Content-Transfer-Encoding', element.contentTransferEncoding);
+        } else if (this.mail.encoding && /^text\//i.test(element.contentType)) {
+            node.setHeader('Content-Transfer-Encoding', this.mail.encoding);
+        }
+
+        if (!/^text\//i.test(element.contentType) || element.contentDisposition) {
+            node.setHeader(
+                'Content-Disposition',
+                element.contentDisposition || (element.cid && /^image\//i.test(element.contentType) ? 'inline' : 'attachment')
+            );
+        }
+
+        if (typeof element.content === 'string' && !['utf8', 'usascii', 'ascii'].includes(encoding)) {
+            element.content = Buffer.from(element.content, encoding);
+        }
+
+        // prefer pregenerated raw content
+        if (element.raw) {
+            node.setRaw(element.raw);
+        } else {
+            node.setContent(element.content);
+        }
+
+        return node;
+    }
+
+    /**
+     * Parses data uri and converts it to a Buffer
+     *
+     * @param {Object} element Content element
+     * @return {Object} Parsed element
+     */
+    _processDataUrl(element) {
+        let parsedDataUri;
+        if ((element.path || element.href).match(/^data:/)) {
+            parsedDataUri = parseDataURI(element.path || element.href);
+        }
+
+        if (!parsedDataUri) {
+            return element;
+        }
+
+        element.content = parsedDataUri.data;
+        element.contentType = element.contentType || parsedDataUri.contentType;
+
+        if ('path' in element) {
+            element.path = false;
+        }
+
+        if ('href' in element) {
+            element.href = false;
+        }
+
+        return element;
+    }
+}
+
+module.exports = MailComposer;
diff --git a/backend/node_modules/nodemailer/lib/mailer/index.js b/backend/node_modules/nodemailer/lib/mailer/index.js
new file mode 100644
index 0000000..3c80184
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/mailer/index.js
@@ -0,0 +1,429 @@
+'use strict';
+
+const EventEmitter = require('events');
+const shared = require('../shared');
+const mimeTypes = require('../mime-funcs/mime-types');
+const MailComposer = require('../mail-composer');
+const DKIM = require('../dkim');
+const httpProxyClient = require('../smtp-connection/http-proxy-client');
+const util = require('util');
+const urllib = require('url');
+const packageData = require('../../package.json');
+const MailMessage = require('./mail-message');
+const net = require('net');
+const dns = require('dns');
+const crypto = require('crypto');
+
+/**
+ * Creates an object for exposing the Mail API
+ *
+ * @constructor
+ * @param {Object} transporter Transport object instance to pass the mails to
+ */
+class Mail extends EventEmitter {
+    constructor(transporter, options, defaults) {
+        super();
+
+        this.options = options || {};
+        this._defaults = defaults || {};
+
+        this._defaultPlugins = {
+            compile: [(...args) => this._convertDataImages(...args)],
+            stream: []
+        };
+
+        this._userPlugins = {
+            compile: [],
+            stream: []
+        };
+
+        this.meta = new Map();
+
+        this.dkim = this.options.dkim ? new DKIM(this.options.dkim) : false;
+
+        this.transporter = transporter;
+        this.transporter.mailer = this;
+
+        this.logger = shared.getLogger(this.options, {
+            component: this.options.component || 'mail'
+        });
+
+        this.logger.debug(
+            {
+                tnx: 'create'
+            },
+            'Creating transport: %s',
+            this.getVersionString()
+        );
+
+        // setup emit handlers for the transporter
+        if (typeof this.transporter.on === 'function') {
+            // deprecated log interface
+            this.transporter.on('log', log => {
+                this.logger.debug(
+                    {
+                        tnx: 'transport'
+                    },
+                    '%s: %s',
+                    log.type,
+                    log.message
+                );
+            });
+
+            // transporter errors
+            this.transporter.on('error', err => {
+                this.logger.error(
+                    {
+                        err,
+                        tnx: 'transport'
+                    },
+                    'Transport Error: %s',
+                    err.message
+                );
+                this.emit('error', err);
+            });
+
+            // indicates if the sender has became idle
+            this.transporter.on('idle', (...args) => {
+                this.emit('idle', ...args);
+            });
+        }
+
+        /**
+         * Optional methods passed to the underlying transport object
+         */
+        ['close', 'isIdle', 'verify'].forEach(method => {
+            this[method] = (...args) => {
+                if (typeof this.transporter[method] === 'function') {
+                    if (method === 'verify' && typeof this.getSocket === 'function') {
+                        this.transporter.getSocket = this.getSocket;
+                        this.getSocket = false;
+                    }
+                    return this.transporter[method](...args);
+                } else {
+                    this.logger.warn(
+                        {
+                            tnx: 'transport',
+                            methodName: method
+                        },
+                        'Non existing method %s called for transport',
+                        method
+                    );
+                    return false;
+                }
+            };
+        });
+
+        // setup proxy handling
+        if (this.options.proxy && typeof this.options.proxy === 'string') {
+            this.setupProxy(this.options.proxy);
+        }
+    }
+
+    use(step, plugin) {
+        step = (step || '').toString();
+        if (!this._userPlugins.hasOwnProperty(step)) {
+            this._userPlugins[step] = [plugin];
+        } else {
+            this._userPlugins[step].push(plugin);
+        }
+
+        return this;
+    }
+
+    /**
+     * Sends an email using the preselected transport object
+     *
+     * @param {Object} data E-data description
+     * @param {Function?} callback Callback to run once the sending succeeded or failed
+     */
+    sendMail(data, callback = null) {
+        let promise;
+
+        if (!callback) {
+            promise = new Promise((resolve, reject) => {
+                callback = shared.callbackPromise(resolve, reject);
+            });
+        }
+
+        if (typeof this.getSocket === 'function') {
+            this.transporter.getSocket = this.getSocket;
+            this.getSocket = false;
+        }
+
+        let mail = new MailMessage(this, data);
+
+        this.logger.debug(
+            {
+                tnx: 'transport',
+                name: this.transporter.name,
+                version: this.transporter.version,
+                action: 'send'
+            },
+            'Sending mail using %s/%s',
+            this.transporter.name,
+            this.transporter.version
+        );
+
+        this._processPlugins('compile', mail, err => {
+            if (err) {
+                this.logger.error(
+                    {
+                        err,
+                        tnx: 'plugin',
+                        action: 'compile'
+                    },
+                    'PluginCompile Error: %s',
+                    err.message
+                );
+                return callback(err);
+            }
+
+            mail.message = new MailComposer(mail.data).compile();
+
+            mail.setMailerHeader();
+            mail.setPriorityHeaders();
+            mail.setListHeaders();
+
+            this._processPlugins('stream', mail, err => {
+                if (err) {
+                    this.logger.error(
+                        {
+                            err,
+                            tnx: 'plugin',
+                            action: 'stream'
+                        },
+                        'PluginStream Error: %s',
+                        err.message
+                    );
+                    return callback(err);
+                }
+
+                if (mail.data.dkim || this.dkim) {
+                    mail.message.processFunc(input => {
+                        let dkim = mail.data.dkim ? new DKIM(mail.data.dkim) : this.dkim;
+                        this.logger.debug(
+                            {
+                                tnx: 'DKIM',
+                                messageId: mail.message.messageId(),
+                                dkimDomains: dkim.keys.map(key => key.keySelector + '.' + key.domainName).join(', ')
+                            },
+                            'Signing outgoing message with %s keys',
+                            dkim.keys.length
+                        );
+                        return dkim.sign(input, mail.data._dkim);
+                    });
+                }
+
+                this.transporter.send(mail, (...args) => {
+                    if (args[0]) {
+                        this.logger.error(
+                            {
+                                err: args[0],
+                                tnx: 'transport',
+                                action: 'send'
+                            },
+                            'Send Error: %s',
+                            args[0].message
+                        );
+                    }
+                    callback(...args);
+                });
+            });
+        });
+
+        return promise;
+    }
+
+    getVersionString() {
+        return util.format('%s (%s; +%s; %s/%s)', packageData.name, packageData.version, packageData.homepage, this.transporter.name, this.transporter.version);
+    }
+
+    _processPlugins(step, mail, callback) {
+        step = (step || '').toString();
+
+        if (!this._userPlugins.hasOwnProperty(step)) {
+            return callback();
+        }
+
+        let userPlugins = this._userPlugins[step] || [];
+        let defaultPlugins = this._defaultPlugins[step] || [];
+
+        if (userPlugins.length) {
+            this.logger.debug(
+                {
+                    tnx: 'transaction',
+                    pluginCount: userPlugins.length,
+                    step
+                },
+                'Using %s plugins for %s',
+                userPlugins.length,
+                step
+            );
+        }
+
+        if (userPlugins.length + defaultPlugins.length === 0) {
+            return callback();
+        }
+
+        let pos = 0;
+        let block = 'default';
+        let processPlugins = () => {
+            let curplugins = block === 'default' ? defaultPlugins : userPlugins;
+            if (pos >= curplugins.length) {
+                if (block === 'default' && userPlugins.length) {
+                    block = 'user';
+                    pos = 0;
+                    curplugins = userPlugins;
+                } else {
+                    return callback();
+                }
+            }
+            let plugin = curplugins[pos++];
+            plugin(mail, err => {
+                if (err) {
+                    return callback(err);
+                }
+                processPlugins();
+            });
+        };
+
+        processPlugins();
+    }
+
+    /**
+     * Sets up proxy handler for a Nodemailer object
+     *
+     * @param {String} proxyUrl Proxy configuration url
+     */
+    setupProxy(proxyUrl) {
+        let proxy = urllib.parse(proxyUrl);
+
+        // setup socket handler for the mailer object
+        this.getSocket = (options, callback) => {
+            let protocol = proxy.protocol.replace(/:$/, '').toLowerCase();
+
+            if (this.meta.has('proxy_handler_' + protocol)) {
+                return this.meta.get('proxy_handler_' + protocol)(proxy, options, callback);
+            }
+
+            switch (protocol) {
+                // Connect using a HTTP CONNECT method
+                case 'http':
+                case 'https':
+                    httpProxyClient(proxy.href, options.port, options.host, (err, socket) => {
+                        if (err) {
+                            return callback(err);
+                        }
+                        return callback(null, {
+                            connection: socket
+                        });
+                    });
+                    return;
+                case 'socks':
+                case 'socks5':
+                case 'socks4':
+                case 'socks4a': {
+                    if (!this.meta.has('proxy_socks_module')) {
+                        return callback(new Error('Socks module not loaded'));
+                    }
+                    let connect = ipaddress => {
+                        let proxyV2 = !!this.meta.get('proxy_socks_module').SocksClient;
+                        let socksClient = proxyV2 ? this.meta.get('proxy_socks_module').SocksClient : this.meta.get('proxy_socks_module');
+                        let proxyType = Number(proxy.protocol.replace(/\D/g, '')) || 5;
+                        let connectionOpts = {
+                            proxy: {
+                                ipaddress,
+                                port: Number(proxy.port),
+                                type: proxyType
+                            },
+                            [proxyV2 ? 'destination' : 'target']: {
+                                host: options.host,
+                                port: options.port
+                            },
+                            command: 'connect'
+                        };
+
+                        if (proxy.auth) {
+                            let username = decodeURIComponent(proxy.auth.split(':').shift());
+                            let password = decodeURIComponent(proxy.auth.split(':').pop());
+                            if (proxyV2) {
+                                connectionOpts.proxy.userId = username;
+                                connectionOpts.proxy.password = password;
+                            } else if (proxyType === 4) {
+                                connectionOpts.userid = username;
+                            } else {
+                                connectionOpts.authentication = {
+                                    username,
+                                    password
+                                };
+                            }
+                        }
+
+                        socksClient.createConnection(connectionOpts, (err, info) => {
+                            if (err) {
+                                return callback(err);
+                            }
+                            return callback(null, {
+                                connection: info.socket || info
+                            });
+                        });
+                    };
+
+                    if (net.isIP(proxy.hostname)) {
+                        return connect(proxy.hostname);
+                    }
+
+                    return dns.resolve(proxy.hostname, (err, address) => {
+                        if (err) {
+                            return callback(err);
+                        }
+                        connect(Array.isArray(address) ? address[0] : address);
+                    });
+                }
+            }
+            callback(new Error('Unknown proxy configuration'));
+        };
+    }
+
+    _convertDataImages(mail, callback) {
+        if ((!this.options.attachDataUrls && !mail.data.attachDataUrls) || !mail.data.html) {
+            return callback();
+        }
+        mail.resolveContent(mail.data, 'html', (err, html) => {
+            if (err) {
+                return callback(err);
+            }
+            let cidCounter = 0;
+            html = (html || '')
+                .toString()
+                .replace(/(<img\b[^<>]{0,1024} src\s{0,20}=[\s"']{0,20})(data:([^;]+);[^"'>\s]+)/gi, (match, prefix, dataUri, mimeType) => {
+                    let cid = crypto.randomBytes(10).toString('hex') + '@localhost';
+                    if (!mail.data.attachments) {
+                        mail.data.attachments = [];
+                    }
+                    if (!Array.isArray(mail.data.attachments)) {
+                        mail.data.attachments = [].concat(mail.data.attachments || []);
+                    }
+                    mail.data.attachments.push({
+                        path: dataUri,
+                        cid,
+                        filename: 'image-' + ++cidCounter + '.' + mimeTypes.detectExtension(mimeType)
+                    });
+                    return prefix + 'cid:' + cid;
+                });
+            mail.data.html = html;
+            callback();
+        });
+    }
+
+    set(key, value) {
+        return this.meta.set(key, value);
+    }
+
+    get(key) {
+        return this.meta.get(key);
+    }
+}
+
+module.exports = Mail;
diff --git a/backend/node_modules/nodemailer/lib/mailer/mail-message.js b/backend/node_modules/nodemailer/lib/mailer/mail-message.js
new file mode 100644
index 0000000..24d492b
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/mailer/mail-message.js
@@ -0,0 +1,315 @@
+'use strict';
+
+const shared = require('../shared');
+const MimeNode = require('../mime-node');
+const mimeFuncs = require('../mime-funcs');
+
+class MailMessage {
+    constructor(mailer, data) {
+        this.mailer = mailer;
+        this.data = {};
+        this.message = null;
+
+        data = data || {};
+        let options = mailer.options || {};
+        let defaults = mailer._defaults || {};
+
+        Object.keys(data).forEach(key => {
+            this.data[key] = data[key];
+        });
+
+        this.data.headers = this.data.headers || {};
+
+        // apply defaults
+        Object.keys(defaults).forEach(key => {
+            if (!(key in this.data)) {
+                this.data[key] = defaults[key];
+            } else if (key === 'headers') {
+                // headers is a special case. Allow setting individual default headers
+                Object.keys(defaults.headers).forEach(key => {
+                    if (!(key in this.data.headers)) {
+                        this.data.headers[key] = defaults.headers[key];
+                    }
+                });
+            }
+        });
+
+        // force specific keys from transporter options
+        ['disableFileAccess', 'disableUrlAccess', 'normalizeHeaderKey'].forEach(key => {
+            if (key in options) {
+                this.data[key] = options[key];
+            }
+        });
+    }
+
+    resolveContent(...args) {
+        return shared.resolveContent(...args);
+    }
+
+    resolveAll(callback) {
+        let keys = [
+            [this.data, 'html'],
+            [this.data, 'text'],
+            [this.data, 'watchHtml'],
+            [this.data, 'amp'],
+            [this.data, 'icalEvent']
+        ];
+
+        if (this.data.alternatives && this.data.alternatives.length) {
+            this.data.alternatives.forEach((alternative, i) => {
+                keys.push([this.data.alternatives, i]);
+            });
+        }
+
+        if (this.data.attachments && this.data.attachments.length) {
+            this.data.attachments.forEach((attachment, i) => {
+                if (!attachment.filename) {
+                    attachment.filename = (attachment.path || attachment.href || '').split('/').pop().split('?').shift() || 'attachment-' + (i + 1);
+                    if (attachment.filename.indexOf('.') < 0) {
+                        attachment.filename += '.' + mimeFuncs.detectExtension(attachment.contentType);
+                    }
+                }
+
+                if (!attachment.contentType) {
+                    attachment.contentType = mimeFuncs.detectMimeType(attachment.filename || attachment.path || attachment.href || 'bin');
+                }
+
+                keys.push([this.data.attachments, i]);
+            });
+        }
+
+        let mimeNode = new MimeNode();
+
+        let addressKeys = ['from', 'to', 'cc', 'bcc', 'sender', 'replyTo'];
+
+        addressKeys.forEach(address => {
+            let value;
+            if (this.message) {
+                value = [].concat(mimeNode._parseAddresses(this.message.getHeader(address === 'replyTo' ? 'reply-to' : address)) || []);
+            } else if (this.data[address]) {
+                value = [].concat(mimeNode._parseAddresses(this.data[address]) || []);
+            }
+            if (value && value.length) {
+                this.data[address] = value;
+            } else if (address in this.data) {
+                this.data[address] = null;
+            }
+        });
+
+        let singleKeys = ['from', 'sender'];
+        singleKeys.forEach(address => {
+            if (this.data[address]) {
+                this.data[address] = this.data[address].shift();
+            }
+        });
+
+        let pos = 0;
+        let resolveNext = () => {
+            if (pos >= keys.length) {
+                return callback(null, this.data);
+            }
+            let args = keys[pos++];
+            if (!args[0] || !args[0][args[1]]) {
+                return resolveNext();
+            }
+            shared.resolveContent(...args, (err, value) => {
+                if (err) {
+                    return callback(err);
+                }
+
+                let node = {
+                    content: value
+                };
+                if (args[0][args[1]] && typeof args[0][args[1]] === 'object' && !Buffer.isBuffer(args[0][args[1]])) {
+                    Object.keys(args[0][args[1]]).forEach(key => {
+                        if (!(key in node) && !['content', 'path', 'href', 'raw'].includes(key)) {
+                            node[key] = args[0][args[1]][key];
+                        }
+                    });
+                }
+
+                args[0][args[1]] = node;
+                resolveNext();
+            });
+        };
+
+        setImmediate(() => resolveNext());
+    }
+
+    normalize(callback) {
+        let envelope = this.data.envelope || this.message.getEnvelope();
+        let messageId = this.message.messageId();
+
+        this.resolveAll((err, data) => {
+            if (err) {
+                return callback(err);
+            }
+
+            data.envelope = envelope;
+            data.messageId = messageId;
+
+            ['html', 'text', 'watchHtml', 'amp'].forEach(key => {
+                if (data[key] && data[key].content) {
+                    if (typeof data[key].content === 'string') {
+                        data[key] = data[key].content;
+                    } else if (Buffer.isBuffer(data[key].content)) {
+                        data[key] = data[key].content.toString();
+                    }
+                }
+            });
+
+            if (data.icalEvent && Buffer.isBuffer(data.icalEvent.content)) {
+                data.icalEvent.content = data.icalEvent.content.toString('base64');
+                data.icalEvent.encoding = 'base64';
+            }
+
+            if (data.alternatives && data.alternatives.length) {
+                data.alternatives.forEach(alternative => {
+                    if (alternative && alternative.content && Buffer.isBuffer(alternative.content)) {
+                        alternative.content = alternative.content.toString('base64');
+                        alternative.encoding = 'base64';
+                    }
+                });
+            }
+
+            if (data.attachments && data.attachments.length) {
+                data.attachments.forEach(attachment => {
+                    if (attachment && attachment.content && Buffer.isBuffer(attachment.content)) {
+                        attachment.content = attachment.content.toString('base64');
+                        attachment.encoding = 'base64';
+                    }
+                });
+            }
+
+            data.normalizedHeaders = {};
+            Object.keys(data.headers || {}).forEach(key => {
+                let value = [].concat(data.headers[key] || []).shift();
+                value = (value && value.value) || value;
+                if (value) {
+                    if (['references', 'in-reply-to', 'message-id', 'content-id'].includes(key)) {
+                        value = this.message._encodeHeaderValue(key, value);
+                    }
+                    data.normalizedHeaders[key] = value;
+                }
+            });
+
+            if (data.list && typeof data.list === 'object') {
+                let listHeaders = this._getListHeaders(data.list);
+                listHeaders.forEach(entry => {
+                    data.normalizedHeaders[entry.key] = entry.value.map(val => (val && val.value) || val).join(', ');
+                });
+            }
+
+            if (data.references) {
+                data.normalizedHeaders.references = this.message._encodeHeaderValue('references', data.references);
+            }
+
+            if (data.inReplyTo) {
+                data.normalizedHeaders['in-reply-to'] = this.message._encodeHeaderValue('in-reply-to', data.inReplyTo);
+            }
+
+            return callback(null, data);
+        });
+    }
+
+    setMailerHeader() {
+        if (!this.message || !this.data.xMailer) {
+            return;
+        }
+        this.message.setHeader('X-Mailer', this.data.xMailer);
+    }
+
+    setPriorityHeaders() {
+        if (!this.message || !this.data.priority) {
+            return;
+        }
+        switch ((this.data.priority || '').toString().toLowerCase()) {
+            case 'high':
+                this.message.setHeader('X-Priority', '1 (Highest)');
+                this.message.setHeader('X-MSMail-Priority', 'High');
+                this.message.setHeader('Importance', 'High');
+                break;
+            case 'low':
+                this.message.setHeader('X-Priority', '5 (Lowest)');
+                this.message.setHeader('X-MSMail-Priority', 'Low');
+                this.message.setHeader('Importance', 'Low');
+                break;
+            default:
+            // do not add anything, since all messages are 'Normal' by default
+        }
+    }
+
+    setListHeaders() {
+        if (!this.message || !this.data.list || typeof this.data.list !== 'object') {
+            return;
+        }
+        // add optional List-* headers
+        if (this.data.list && typeof this.data.list === 'object') {
+            this._getListHeaders(this.data.list).forEach(listHeader => {
+                listHeader.value.forEach(value => {
+                    this.message.addHeader(listHeader.key, value);
+                });
+            });
+        }
+    }
+
+    _getListHeaders(listData) {
+        // make sure an url looks like <protocol:url>
+        return Object.keys(listData).map(key => ({
+            key: 'list-' + key.toLowerCase().trim(),
+            value: [].concat(listData[key] || []).map(value => ({
+                prepared: true,
+                foldLines: true,
+                value: []
+                    .concat(value || [])
+                    .map(value => {
+                        if (typeof value === 'string') {
+                            value = {
+                                url: value
+                            };
+                        }
+
+                        if (value && value.url) {
+                            if (key.toLowerCase().trim() === 'id') {
+                                // List-ID: "comment" <domain>
+                                let comment = value.comment || '';
+                                if (mimeFuncs.isPlainText(comment)) {
+                                    comment = '"' + comment + '"';
+                                } else {
+                                    comment = mimeFuncs.encodeWord(comment);
+                                }
+
+                                return (value.comment ? comment + ' ' : '') + this._formatListUrl(value.url).replace(/^<[^:]+\/{,2}/, '');
+                            }
+
+                            // List-*: <http://domain> (comment)
+                            let comment = value.comment || '';
+                            if (!mimeFuncs.isPlainText(comment)) {
+                                comment = mimeFuncs.encodeWord(comment);
+                            }
+
+                            return this._formatListUrl(value.url) + (value.comment ? ' (' + comment + ')' : '');
+                        }
+
+                        return '';
+                    })
+                    .filter(value => value)
+                    .join(', ')
+            }))
+        }));
+    }
+
+    _formatListUrl(url) {
+        url = url.replace(/[\s<]+|[\s>]+/g, '');
+        if (/^(https?|mailto|ftp):/.test(url)) {
+            return '<' + url + '>';
+        }
+        if (/^[^@]+@[^@]+$/.test(url)) {
+            return '<mailto:' + url + '>';
+        }
+
+        return '<http://' + url + '>';
+    }
+}
+
+module.exports = MailMessage;
diff --git a/backend/node_modules/nodemailer/lib/mime-funcs/index.js b/backend/node_modules/nodemailer/lib/mime-funcs/index.js
new file mode 100644
index 0000000..86e975d
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/mime-funcs/index.js
@@ -0,0 +1,625 @@
+/* eslint no-control-regex:0 */
+
+'use strict';
+
+const base64 = require('../base64');
+const qp = require('../qp');
+const mimeTypes = require('./mime-types');
+
+module.exports = {
+    /**
+     * Checks if a value is plaintext string (uses only printable 7bit chars)
+     *
+     * @param {String} value String to be tested
+     * @returns {Boolean} true if it is a plaintext string
+     */
+    isPlainText(value, isParam) {
+        const re = isParam ? /[\x00-\x08\x0b\x0c\x0e-\x1f"\u0080-\uFFFF]/ : /[\x00-\x08\x0b\x0c\x0e-\x1f\u0080-\uFFFF]/;
+        if (typeof value !== 'string' || re.test(value)) {
+            return false;
+        } else {
+            return true;
+        }
+    },
+
+    /**
+     * Checks if a multi line string containes lines longer than the selected value.
+     *
+     * Useful when detecting if a mail message needs any processing at all –
+     * if only plaintext characters are used and lines are short, then there is
+     * no need to encode the values in any way. If the value is plaintext but has
+     * longer lines then allowed, then use format=flowed
+     *
+     * @param {Number} lineLength Max line length to check for
+     * @returns {Boolean} Returns true if there is at least one line longer than lineLength chars
+     */
+    hasLongerLines(str, lineLength) {
+        if (str.length > 128 * 1024) {
+            // do not test strings longer than 128kB
+            return true;
+        }
+        return new RegExp('^.{' + (lineLength + 1) + ',}', 'm').test(str);
+    },
+
+    /**
+     * Encodes a string or an Buffer to an UTF-8 MIME Word (rfc2047)
+     *
+     * @param {String|Buffer} data String to be encoded
+     * @param {String} mimeWordEncoding='Q' Encoding for the mime word, either Q or B
+     * @param {Number} [maxLength=0] If set, split mime words into several chunks if needed
+     * @return {String} Single or several mime words joined together
+     */
+    encodeWord(data, mimeWordEncoding, maxLength) {
+        mimeWordEncoding = (mimeWordEncoding || 'Q').toString().toUpperCase().trim().charAt(0);
+        maxLength = maxLength || 0;
+
+        let encodedStr;
+        let toCharset = 'UTF-8';
+
+        if (maxLength && maxLength > 7 + toCharset.length) {
+            maxLength -= 7 + toCharset.length;
+        }
+
+        if (mimeWordEncoding === 'Q') {
+            // https://tools.ietf.org/html/rfc2047#section-5 rule (3)
+            encodedStr = qp.encode(data).replace(/[^a-z0-9!*+\-/=]/gi, chr => {
+                let ord = chr.charCodeAt(0).toString(16).toUpperCase();
+                if (chr === ' ') {
+                    return '_';
+                } else {
+                    return '=' + (ord.length === 1 ? '0' + ord : ord);
+                }
+            });
+        } else if (mimeWordEncoding === 'B') {
+            encodedStr = typeof data === 'string' ? data : base64.encode(data);
+            maxLength = maxLength ? Math.max(3, ((maxLength - (maxLength % 4)) / 4) * 3) : 0;
+        }
+
+        if (maxLength && (mimeWordEncoding !== 'B' ? encodedStr : base64.encode(data)).length > maxLength) {
+            if (mimeWordEncoding === 'Q') {
+                encodedStr = this.splitMimeEncodedString(encodedStr, maxLength).join('?= =?' + toCharset + '?' + mimeWordEncoding + '?');
+            } else {
+                // RFC2047 6.3 (2) states that encoded-word must include an integral number of characters, so no chopping unicode sequences
+                let parts = [];
+                let lpart = '';
+                for (let i = 0, len = encodedStr.length; i < len; i++) {
+                    let chr = encodedStr.charAt(i);
+
+                    if (/[\ud83c\ud83d\ud83e]/.test(chr) && i < len - 1) {
+                        // composite emoji byte, so add the next byte as well
+                        chr += encodedStr.charAt(++i);
+                    }
+
+                    // check if we can add this character to the existing string
+                    // without breaking byte length limit
+                    if (Buffer.byteLength(lpart + chr) <= maxLength || i === 0) {
+                        lpart += chr;
+                    } else {
+                        // we hit the length limit, so push the existing string and start over
+                        parts.push(base64.encode(lpart));
+                        lpart = chr;
+                    }
+                }
+                if (lpart) {
+                    parts.push(base64.encode(lpart));
+                }
+
+                if (parts.length > 1) {
+                    encodedStr = parts.join('?= =?' + toCharset + '?' + mimeWordEncoding + '?');
+                } else {
+                    encodedStr = parts.join('');
+                }
+            }
+        } else if (mimeWordEncoding === 'B') {
+            encodedStr = base64.encode(data);
+        }
+
+        return '=?' + toCharset + '?' + mimeWordEncoding + '?' + encodedStr + (encodedStr.substr(-2) === '?=' ? '' : '?=');
+    },
+
+    /**
+     * Finds word sequences with non ascii text and converts these to mime words
+     *
+     * @param {String} value String to be encoded
+     * @param {String} mimeWordEncoding='Q' Encoding for the mime word, either Q or B
+     * @param {Number} [maxLength=0] If set, split mime words into several chunks if needed
+     * @param {Boolean} [encodeAll=false] If true and the value needs encoding then encodes entire string, not just the smallest match
+     * @return {String} String with possible mime words
+     */
+    encodeWords(value, mimeWordEncoding, maxLength, encodeAll) {
+        maxLength = maxLength || 0;
+
+        let encodedValue;
+
+        // find first word with a non-printable ascii or special symbol in it
+        let firstMatch = value.match(/(?:^|\s)([^\s]*["\u0080-\uFFFF])/);
+        if (!firstMatch) {
+            return value;
+        }
+
+        if (encodeAll) {
+            // if it is requested to encode everything or the string contains something that resebles encoded word, then encode everything
+
+            return this.encodeWord(value, mimeWordEncoding, maxLength);
+        }
+
+        // find the last word with a non-printable ascii in it
+        let lastMatch = value.match(/(["\u0080-\uFFFF][^\s]*)[^"\u0080-\uFFFF]*$/);
+        if (!lastMatch) {
+            // should not happen
+            return value;
+        }
+
+        let startIndex =
+            firstMatch.index +
+            (
+                firstMatch[0].match(/[^\s]/) || {
+                    index: 0
+                }
+            ).index;
+        let endIndex = lastMatch.index + (lastMatch[1] || '').length;
+
+        encodedValue =
+            (startIndex ? value.substr(0, startIndex) : '') +
+            this.encodeWord(value.substring(startIndex, endIndex), mimeWordEncoding || 'Q', maxLength) +
+            (endIndex < value.length ? value.substr(endIndex) : '');
+
+        return encodedValue;
+    },
+
+    /**
+     * Joins parsed header value together as 'value; param1=value1; param2=value2'
+     * PS: We are following RFC 822 for the list of special characters that we need to keep in quotes.
+     *      Refer: https://www.w3.org/Protocols/rfc1341/4_Content-Type.html
+     * @param {Object} structured Parsed header value
+     * @return {String} joined header value
+     */
+    buildHeaderValue(structured) {
+        let paramsArray = [];
+
+        Object.keys(structured.params || {}).forEach(param => {
+            // filename might include unicode characters so it is a special case
+            // other values probably do not
+            let value = structured.params[param];
+            if (!this.isPlainText(value, true) || value.length >= 75) {
+                this.buildHeaderParam(param, value, 50).forEach(encodedParam => {
+                    if (!/[\s"\\;:/=(),<>@[\]?]|^[-']|'$/.test(encodedParam.value) || encodedParam.key.substr(-1) === '*') {
+                        paramsArray.push(encodedParam.key + '=' + encodedParam.value);
+                    } else {
+                        paramsArray.push(encodedParam.key + '=' + JSON.stringify(encodedParam.value));
+                    }
+                });
+            } else if (/[\s'"\\;:/=(),<>@[\]?]|^-/.test(value)) {
+                paramsArray.push(param + '=' + JSON.stringify(value));
+            } else {
+                paramsArray.push(param + '=' + value);
+            }
+        });
+
+        return structured.value + (paramsArray.length ? '; ' + paramsArray.join('; ') : '');
+    },
+
+    /**
+     * Encodes a string or an Buffer to an UTF-8 Parameter Value Continuation encoding (rfc2231)
+     * Useful for splitting long parameter values.
+     *
+     * For example
+     *      title="unicode string"
+     * becomes
+     *     title*0*=utf-8''unicode
+     *     title*1*=%20string
+     *
+     * @param {String|Buffer} data String to be encoded
+     * @param {Number} [maxLength=50] Max length for generated chunks
+     * @param {String} [fromCharset='UTF-8'] Source sharacter set
+     * @return {Array} A list of encoded keys and headers
+     */
+    buildHeaderParam(key, data, maxLength) {
+        let list = [];
+        let encodedStr = typeof data === 'string' ? data : (data || '').toString();
+        let encodedStrArr;
+        let chr, ord;
+        let line;
+        let startPos = 0;
+        let i, len;
+
+        maxLength = maxLength || 50;
+
+        // process ascii only text
+        if (this.isPlainText(data, true)) {
+            // check if conversion is even needed
+            if (encodedStr.length <= maxLength) {
+                return [
+                    {
+                        key,
+                        value: encodedStr
+                    }
+                ];
+            }
+
+            encodedStr = encodedStr.replace(new RegExp('.{' + maxLength + '}', 'g'), str => {
+                list.push({
+                    line: str
+                });
+                return '';
+            });
+
+            if (encodedStr) {
+                list.push({
+                    line: encodedStr
+                });
+            }
+        } else {
+            if (/[\uD800-\uDBFF]/.test(encodedStr)) {
+                // string containts surrogate pairs, so normalize it to an array of bytes
+                encodedStrArr = [];
+                for (i = 0, len = encodedStr.length; i < len; i++) {
+                    chr = encodedStr.charAt(i);
+                    ord = chr.charCodeAt(0);
+                    if (ord >= 0xd800 && ord <= 0xdbff && i < len - 1) {
+                        chr += encodedStr.charAt(i + 1);
+                        encodedStrArr.push(chr);
+                        i++;
+                    } else {
+                        encodedStrArr.push(chr);
+                    }
+                }
+                encodedStr = encodedStrArr;
+            }
+
+            // first line includes the charset and language info and needs to be encoded
+            // even if it does not contain any unicode characters
+            line = 'utf-8\x27\x27';
+            let encoded = true;
+            startPos = 0;
+
+            // process text with unicode or special chars
+            for (i = 0, len = encodedStr.length; i < len; i++) {
+                chr = encodedStr[i];
+
+                if (encoded) {
+                    chr = this.safeEncodeURIComponent(chr);
+                } else {
+                    // try to urlencode current char
+                    chr = chr === ' ' ? chr : this.safeEncodeURIComponent(chr);
+                    // By default it is not required to encode a line, the need
+                    // only appears when the string contains unicode or special chars
+                    // in this case we start processing the line over and encode all chars
+                    if (chr !== encodedStr[i]) {
+                        // Check if it is even possible to add the encoded char to the line
+                        // If not, there is no reason to use this line, just push it to the list
+                        // and start a new line with the char that needs encoding
+                        if ((this.safeEncodeURIComponent(line) + chr).length >= maxLength) {
+                            list.push({
+                                line,
+                                encoded
+                            });
+                            line = '';
+                            startPos = i - 1;
+                        } else {
+                            encoded = true;
+                            i = startPos;
+                            line = '';
+                            continue;
+                        }
+                    }
+                }
+
+                // if the line is already too long, push it to the list and start a new one
+                if ((line + chr).length >= maxLength) {
+                    list.push({
+                        line,
+                        encoded
+                    });
+                    line = chr = encodedStr[i] === ' ' ? ' ' : this.safeEncodeURIComponent(encodedStr[i]);
+                    if (chr === encodedStr[i]) {
+                        encoded = false;
+                        startPos = i - 1;
+                    } else {
+                        encoded = true;
+                    }
+                } else {
+                    line += chr;
+                }
+            }
+
+            if (line) {
+                list.push({
+                    line,
+                    encoded
+                });
+            }
+        }
+
+        return list.map((item, i) => ({
+            // encoded lines: {name}*{part}*
+            // unencoded lines: {name}*{part}
+            // if any line needs to be encoded then the first line (part==0) is always encoded
+            key: key + '*' + i + (item.encoded ? '*' : ''),
+            value: item.line
+        }));
+    },
+
+    /**
+     * Parses a header value with key=value arguments into a structured
+     * object.
+     *
+     *   parseHeaderValue('content-type: text/plain; CHARSET='UTF-8'') ->
+     *   {
+     *     'value': 'text/plain',
+     *     'params': {
+     *       'charset': 'UTF-8'
+     *     }
+     *   }
+     *
+     * @param {String} str Header value
+     * @return {Object} Header value as a parsed structure
+     */
+    parseHeaderValue(str) {
+        let response = {
+            value: false,
+            params: {}
+        };
+        let key = false;
+        let value = '';
+        let type = 'value';
+        let quote = false;
+        let escaped = false;
+        let chr;
+
+        for (let i = 0, len = str.length; i < len; i++) {
+            chr = str.charAt(i);
+            if (type === 'key') {
+                if (chr === '=') {
+                    key = value.trim().toLowerCase();
+                    type = 'value';
+                    value = '';
+                    continue;
+                }
+                value += chr;
+            } else {
+                if (escaped) {
+                    value += chr;
+                } else if (chr === '\\') {
+                    escaped = true;
+                    continue;
+                } else if (quote && chr === quote) {
+                    quote = false;
+                } else if (!quote && chr === '"') {
+                    quote = chr;
+                } else if (!quote && chr === ';') {
+                    if (key === false) {
+                        response.value = value.trim();
+                    } else {
+                        response.params[key] = value.trim();
+                    }
+                    type = 'key';
+                    value = '';
+                } else {
+                    value += chr;
+                }
+                escaped = false;
+            }
+        }
+
+        if (type === 'value') {
+            if (key === false) {
+                response.value = value.trim();
+            } else {
+                response.params[key] = value.trim();
+            }
+        } else if (value.trim()) {
+            response.params[value.trim().toLowerCase()] = '';
+        }
+
+        // handle parameter value continuations
+        // https://tools.ietf.org/html/rfc2231#section-3
+
+        // preprocess values
+        Object.keys(response.params).forEach(key => {
+            let actualKey, nr, match, value;
+            if ((match = key.match(/(\*(\d+)|\*(\d+)\*|\*)$/))) {
+                actualKey = key.substr(0, match.index);
+                nr = Number(match[2] || match[3]) || 0;
+
+                if (!response.params[actualKey] || typeof response.params[actualKey] !== 'object') {
+                    response.params[actualKey] = {
+                        charset: false,
+                        values: []
+                    };
+                }
+
+                value = response.params[key];
+
+                if (nr === 0 && match[0].substr(-1) === '*' && (match = value.match(/^([^']*)'[^']*'(.*)$/))) {
+                    response.params[actualKey].charset = match[1] || 'iso-8859-1';
+                    value = match[2];
+                }
+
+                response.params[actualKey].values[nr] = value;
+
+                // remove the old reference
+                delete response.params[key];
+            }
+        });
+
+        // concatenate split rfc2231 strings and convert encoded strings to mime encoded words
+        Object.keys(response.params).forEach(key => {
+            let value;
+            if (response.params[key] && Array.isArray(response.params[key].values)) {
+                value = response.params[key].values.map(val => val || '').join('');
+
+                if (response.params[key].charset) {
+                    // convert "%AB" to "=?charset?Q?=AB?="
+                    response.params[key] =
+                        '=?' +
+                        response.params[key].charset +
+                        '?Q?' +
+                        value
+                            // fix invalidly encoded chars
+                            .replace(/[=?_\s]/g, s => {
+                                let c = s.charCodeAt(0).toString(16);
+                                if (s === ' ') {
+                                    return '_';
+                                } else {
+                                    return '%' + (c.length < 2 ? '0' : '') + c;
+                                }
+                            })
+                            // change from urlencoding to percent encoding
+                            .replace(/%/g, '=') +
+                        '?=';
+                } else {
+                    response.params[key] = value;
+                }
+            }
+        });
+
+        return response;
+    },
+
+    /**
+     * Returns file extension for a content type string. If no suitable extensions
+     * are found, 'bin' is used as the default extension
+     *
+     * @param {String} mimeType Content type to be checked for
+     * @return {String} File extension
+     */
+    detectExtension: mimeType => mimeTypes.detectExtension(mimeType),
+
+    /**
+     * Returns content type for a file extension. If no suitable content types
+     * are found, 'application/octet-stream' is used as the default content type
+     *
+     * @param {String} extension Extension to be checked for
+     * @return {String} File extension
+     */
+    detectMimeType: extension => mimeTypes.detectMimeType(extension),
+
+    /**
+     * Folds long lines, useful for folding header lines (afterSpace=false) and
+     * flowed text (afterSpace=true)
+     *
+     * @param {String} str String to be folded
+     * @param {Number} [lineLength=76] Maximum length of a line
+     * @param {Boolean} afterSpace If true, leave a space in th end of a line
+     * @return {String} String with folded lines
+     */
+    foldLines(str, lineLength, afterSpace) {
+        str = (str || '').toString();
+        lineLength = lineLength || 76;
+
+        let pos = 0,
+            len = str.length,
+            result = '',
+            line,
+            match;
+
+        while (pos < len) {
+            line = str.substr(pos, lineLength);
+            if (line.length < lineLength) {
+                result += line;
+                break;
+            }
+            if ((match = line.match(/^[^\n\r]*(\r?\n|\r)/))) {
+                line = match[0];
+                result += line;
+                pos += line.length;
+                continue;
+            } else if ((match = line.match(/(\s+)[^\s]*$/)) && match[0].length - (afterSpace ? (match[1] || '').length : 0) < line.length) {
+                line = line.substr(0, line.length - (match[0].length - (afterSpace ? (match[1] || '').length : 0)));
+            } else if ((match = str.substr(pos + line.length).match(/^[^\s]+(\s*)/))) {
+                line = line + match[0].substr(0, match[0].length - (!afterSpace ? (match[1] || '').length : 0));
+            }
+
+            result += line;
+            pos += line.length;
+            if (pos < len) {
+                result += '\r\n';
+            }
+        }
+
+        return result;
+    },
+
+    /**
+     * Splits a mime encoded string. Needed for dividing mime words into smaller chunks
+     *
+     * @param {String} str Mime encoded string to be split up
+     * @param {Number} maxlen Maximum length of characters for one part (minimum 12)
+     * @return {Array} Split string
+     */
+    splitMimeEncodedString: (str, maxlen) => {
+        let curLine,
+            match,
+            chr,
+            done,
+            lines = [];
+
+        // require at least 12 symbols to fit possible 4 octet UTF-8 sequences
+        maxlen = Math.max(maxlen || 0, 12);
+
+        while (str.length) {
+            curLine = str.substr(0, maxlen);
+
+            // move incomplete escaped char back to main
+            if ((match = curLine.match(/[=][0-9A-F]?$/i))) {
+                curLine = curLine.substr(0, match.index);
+            }
+
+            done = false;
+            while (!done) {
+                done = true;
+                // check if not middle of a unicode char sequence
+                if ((match = str.substr(curLine.length).match(/^[=]([0-9A-F]{2})/i))) {
+                    chr = parseInt(match[1], 16);
+                    // invalid sequence, move one char back anc recheck
+                    if (chr < 0xc2 && chr > 0x7f) {
+                        curLine = curLine.substr(0, curLine.length - 3);
+                        done = false;
+                    }
+                }
+            }
+
+            if (curLine.length) {
+                lines.push(curLine);
+            }
+            str = str.substr(curLine.length);
+        }
+
+        return lines;
+    },
+
+    encodeURICharComponent: chr => {
+        let res = '';
+        let ord = chr.charCodeAt(0).toString(16).toUpperCase();
+
+        if (ord.length % 2) {
+            ord = '0' + ord;
+        }
+
+        if (ord.length > 2) {
+            for (let i = 0, len = ord.length / 2; i < len; i++) {
+                res += '%' + ord.substr(i, 2);
+            }
+        } else {
+            res += '%' + ord;
+        }
+
+        return res;
+    },
+
+    safeEncodeURIComponent(str) {
+        str = (str || '').toString();
+
+        try {
+            // might throw if we try to encode invalid sequences, eg. partial emoji
+            str = encodeURIComponent(str);
+        } catch (E) {
+            // should never run
+            return str.replace(/[^\x00-\x1F *'()<>@,;:\\"[\]?=\u007F-\uFFFF]+/g, '');
+        }
+
+        // ensure chars that are not handled by encodeURICompent are converted as well
+        return str.replace(/[\x00-\x1F *'()<>@,;:\\"[\]?=\u007F-\uFFFF]/g, chr => this.encodeURICharComponent(chr));
+    }
+};
diff --git a/backend/node_modules/nodemailer/lib/mime-funcs/mime-types.js b/backend/node_modules/nodemailer/lib/mime-funcs/mime-types.js
new file mode 100644
index 0000000..ef5a7c4
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/mime-funcs/mime-types.js
@@ -0,0 +1,2104 @@
+/* eslint quote-props: 0 */
+
+'use strict';
+
+const path = require('path');
+
+const defaultMimeType = 'application/octet-stream';
+const defaultExtension = 'bin';
+
+const mimeTypes = new Map([
+    ['application/acad', 'dwg'],
+    ['application/applixware', 'aw'],
+    ['application/arj', 'arj'],
+    ['application/atom+xml', 'xml'],
+    ['application/atomcat+xml', 'atomcat'],
+    ['application/atomsvc+xml', 'atomsvc'],
+    ['application/base64', ['mm', 'mme']],
+    ['application/binhex', 'hqx'],
+    ['application/binhex4', 'hqx'],
+    ['application/book', ['book', 'boo']],
+    ['application/ccxml+xml,', 'ccxml'],
+    ['application/cdf', 'cdf'],
+    ['application/cdmi-capability', 'cdmia'],
+    ['application/cdmi-container', 'cdmic'],
+    ['application/cdmi-domain', 'cdmid'],
+    ['application/cdmi-object', 'cdmio'],
+    ['application/cdmi-queue', 'cdmiq'],
+    ['application/clariscad', 'ccad'],
+    ['application/commonground', 'dp'],
+    ['application/cu-seeme', 'cu'],
+    ['application/davmount+xml', 'davmount'],
+    ['application/drafting', 'drw'],
+    ['application/dsptype', 'tsp'],
+    ['application/dssc+der', 'dssc'],
+    ['application/dssc+xml', 'xdssc'],
+    ['application/dxf', 'dxf'],
+    ['application/ecmascript', ['js', 'es']],
+    ['application/emma+xml', 'emma'],
+    ['application/envoy', 'evy'],
+    ['application/epub+zip', 'epub'],
+    ['application/excel', ['xls', 'xl', 'xla', 'xlb', 'xlc', 'xld', 'xlk', 'xll', 'xlm', 'xlt', 'xlv', 'xlw']],
+    ['application/exi', 'exi'],
+    ['application/font-tdpfr', 'pfr'],
+    ['application/fractals', 'fif'],
+    ['application/freeloader', 'frl'],
+    ['application/futuresplash', 'spl'],
+    ['application/geo+json', 'geojson'],
+    ['application/gnutar', 'tgz'],
+    ['application/groupwise', 'vew'],
+    ['application/hlp', 'hlp'],
+    ['application/hta', 'hta'],
+    ['application/hyperstudio', 'stk'],
+    ['application/i-deas', 'unv'],
+    ['application/iges', ['iges', 'igs']],
+    ['application/inf', 'inf'],
+    ['application/internet-property-stream', 'acx'],
+    ['application/ipfix', 'ipfix'],
+    ['application/java', 'class'],
+    ['application/java-archive', 'jar'],
+    ['application/java-byte-code', 'class'],
+    ['application/java-serialized-object', 'ser'],
+    ['application/java-vm', 'class'],
+    ['application/javascript', 'js'],
+    ['application/json', 'json'],
+    ['application/lha', 'lha'],
+    ['application/lzx', 'lzx'],
+    ['application/mac-binary', 'bin'],
+    ['application/mac-binhex', 'hqx'],
+    ['application/mac-binhex40', 'hqx'],
+    ['application/mac-compactpro', 'cpt'],
+    ['application/macbinary', 'bin'],
+    ['application/mads+xml', 'mads'],
+    ['application/marc', 'mrc'],
+    ['application/marcxml+xml', 'mrcx'],
+    ['application/mathematica', 'ma'],
+    ['application/mathml+xml', 'mathml'],
+    ['application/mbedlet', 'mbd'],
+    ['application/mbox', 'mbox'],
+    ['application/mcad', 'mcd'],
+    ['application/mediaservercontrol+xml', 'mscml'],
+    ['application/metalink4+xml', 'meta4'],
+    ['application/mets+xml', 'mets'],
+    ['application/mime', 'aps'],
+    ['application/mods+xml', 'mods'],
+    ['application/mp21', 'm21'],
+    ['application/mp4', 'mp4'],
+    ['application/mspowerpoint', ['ppt', 'pot', 'pps', 'ppz']],
+    ['application/msword', ['doc', 'dot', 'w6w', 'wiz', 'word']],
+    ['application/mswrite', 'wri'],
+    ['application/mxf', 'mxf'],
+    ['application/netmc', 'mcp'],
+    ['application/octet-stream', ['*']],
+    ['application/oda', 'oda'],
+    ['application/oebps-package+xml', 'opf'],
+    ['application/ogg', 'ogx'],
+    ['application/olescript', 'axs'],
+    ['application/onenote', 'onetoc'],
+    ['application/patch-ops-error+xml', 'xer'],
+    ['application/pdf', 'pdf'],
+    ['application/pgp-encrypted', 'asc'],
+    ['application/pgp-signature', 'pgp'],
+    ['application/pics-rules', 'prf'],
+    ['application/pkcs-12', 'p12'],
+    ['application/pkcs-crl', 'crl'],
+    ['application/pkcs10', 'p10'],
+    ['application/pkcs7-mime', ['p7c', 'p7m']],
+    ['application/pkcs7-signature', 'p7s'],
+    ['application/pkcs8', 'p8'],
+    ['application/pkix-attr-cert', 'ac'],
+    ['application/pkix-cert', ['cer', 'crt']],
+    ['application/pkix-crl', 'crl'],
+    ['application/pkix-pkipath', 'pkipath'],
+    ['application/pkixcmp', 'pki'],
+    ['application/plain', 'text'],
+    ['application/pls+xml', 'pls'],
+    ['application/postscript', ['ps', 'ai', 'eps']],
+    ['application/powerpoint', 'ppt'],
+    ['application/pro_eng', ['part', 'prt']],
+    ['application/prs.cww', 'cww'],
+    ['application/pskc+xml', 'pskcxml'],
+    ['application/rdf+xml', 'rdf'],
+    ['application/reginfo+xml', 'rif'],
+    ['application/relax-ng-compact-syntax', 'rnc'],
+    ['application/resource-lists+xml', 'rl'],
+    ['application/resource-lists-diff+xml', 'rld'],
+    ['application/ringing-tones', 'rng'],
+    ['application/rls-services+xml', 'rs'],
+    ['application/rsd+xml', 'rsd'],
+    ['application/rss+xml', 'xml'],
+    ['application/rtf', ['rtf', 'rtx']],
+    ['application/sbml+xml', 'sbml'],
+    ['application/scvp-cv-request', 'scq'],
+    ['application/scvp-cv-response', 'scs'],
+    ['application/scvp-vp-request', 'spq'],
+    ['application/scvp-vp-response', 'spp'],
+    ['application/sdp', 'sdp'],
+    ['application/sea', 'sea'],
+    ['application/set', 'set'],
+    ['application/set-payment-initiation', 'setpay'],
+    ['application/set-registration-initiation', 'setreg'],
+    ['application/shf+xml', 'shf'],
+    ['application/sla', 'stl'],
+    ['application/smil', ['smi', 'smil']],
+    ['application/smil+xml', 'smi'],
+    ['application/solids', 'sol'],
+    ['application/sounder', 'sdr'],
+    ['application/sparql-query', 'rq'],
+    ['application/sparql-results+xml', 'srx'],
+    ['application/srgs', 'gram'],
+    ['application/srgs+xml', 'grxml'],
+    ['application/sru+xml', 'sru'],
+    ['application/ssml+xml', 'ssml'],
+    ['application/step', ['step', 'stp']],
+    ['application/streamingmedia', 'ssm'],
+    ['application/tei+xml', 'tei'],
+    ['application/thraud+xml', 'tfi'],
+    ['application/timestamped-data', 'tsd'],
+    ['application/toolbook', 'tbk'],
+    ['application/vda', 'vda'],
+    ['application/vnd.3gpp.pic-bw-large', 'plb'],
+    ['application/vnd.3gpp.pic-bw-small', 'psb'],
+    ['application/vnd.3gpp.pic-bw-var', 'pvb'],
+    ['application/vnd.3gpp2.tcap', 'tcap'],
+    ['application/vnd.3m.post-it-notes', 'pwn'],
+    ['application/vnd.accpac.simply.aso', 'aso'],
+    ['application/vnd.accpac.simply.imp', 'imp'],
+    ['application/vnd.acucobol', 'acu'],
+    ['application/vnd.acucorp', 'atc'],
+    ['application/vnd.adobe.air-application-installer-package+zip', 'air'],
+    ['application/vnd.adobe.fxp', 'fxp'],
+    ['application/vnd.adobe.xdp+xml', 'xdp'],
+    ['application/vnd.adobe.xfdf', 'xfdf'],
+    ['application/vnd.ahead.space', 'ahead'],
+    ['application/vnd.airzip.filesecure.azf', 'azf'],
+    ['application/vnd.airzip.filesecure.azs', 'azs'],
+    ['application/vnd.amazon.ebook', 'azw'],
+    ['application/vnd.americandynamics.acc', 'acc'],
+    ['application/vnd.amiga.ami', 'ami'],
+    ['application/vnd.android.package-archive', 'apk'],
+    ['application/vnd.anser-web-certificate-issue-initiation', 'cii'],
+    ['application/vnd.anser-web-funds-transfer-initiation', 'fti'],
+    ['application/vnd.antix.game-component', 'atx'],
+    ['application/vnd.apple.installer+xml', 'mpkg'],
+    ['application/vnd.apple.mpegurl', 'm3u8'],
+    ['application/vnd.aristanetworks.swi', 'swi'],
+    ['application/vnd.audiograph', 'aep'],
+    ['application/vnd.blueice.multipass', 'mpm'],
+    ['application/vnd.bmi', 'bmi'],
+    ['application/vnd.businessobjects', 'rep'],
+    ['application/vnd.chemdraw+xml', 'cdxml'],
+    ['application/vnd.chipnuts.karaoke-mmd', 'mmd'],
+    ['application/vnd.cinderella', 'cdy'],
+    ['application/vnd.claymore', 'cla'],
+    ['application/vnd.cloanto.rp9', 'rp9'],
+    ['application/vnd.clonk.c4group', 'c4g'],
+    ['application/vnd.cluetrust.cartomobile-config', 'c11amc'],
+    ['application/vnd.cluetrust.cartomobile-config-pkg', 'c11amz'],
+    ['application/vnd.commonspace', 'csp'],
+    ['application/vnd.contact.cmsg', 'cdbcmsg'],
+    ['application/vnd.cosmocaller', 'cmc'],
+    ['application/vnd.crick.clicker', 'clkx'],
+    ['application/vnd.crick.clicker.keyboard', 'clkk'],
+    ['application/vnd.crick.clicker.palette', 'clkp'],
+    ['application/vnd.crick.clicker.template', 'clkt'],
+    ['application/vnd.crick.clicker.wordbank', 'clkw'],
+    ['application/vnd.criticaltools.wbs+xml', 'wbs'],
+    ['application/vnd.ctc-posml', 'pml'],
+    ['application/vnd.cups-ppd', 'ppd'],
+    ['application/vnd.curl.car', 'car'],
+    ['application/vnd.curl.pcurl', 'pcurl'],
+    ['application/vnd.data-vision.rdz', 'rdz'],
+    ['application/vnd.denovo.fcselayout-link', 'fe_launch'],
+    ['application/vnd.dna', 'dna'],
+    ['application/vnd.dolby.mlp', 'mlp'],
+    ['application/vnd.dpgraph', 'dpg'],
+    ['application/vnd.dreamfactory', 'dfac'],
+    ['application/vnd.dvb.ait', 'ait'],
+    ['application/vnd.dvb.service', 'svc'],
+    ['application/vnd.dynageo', 'geo'],
+    ['application/vnd.ecowin.chart', 'mag'],
+    ['application/vnd.enliven', 'nml'],
+    ['application/vnd.epson.esf', 'esf'],
+    ['application/vnd.epson.msf', 'msf'],
+    ['application/vnd.epson.quickanime', 'qam'],
+    ['application/vnd.epson.salt', 'slt'],
+    ['application/vnd.epson.ssf', 'ssf'],
+    ['application/vnd.eszigno3+xml', 'es3'],
+    ['application/vnd.ezpix-album', 'ez2'],
+    ['application/vnd.ezpix-package', 'ez3'],
+    ['application/vnd.fdf', 'fdf'],
+    ['application/vnd.fdsn.seed', 'seed'],
+    ['application/vnd.flographit', 'gph'],
+    ['application/vnd.fluxtime.clip', 'ftc'],
+    ['application/vnd.framemaker', 'fm'],
+    ['application/vnd.frogans.fnc', 'fnc'],
+    ['application/vnd.frogans.ltf', 'ltf'],
+    ['application/vnd.fsc.weblaunch', 'fsc'],
+    ['application/vnd.fujitsu.oasys', 'oas'],
+    ['application/vnd.fujitsu.oasys2', 'oa2'],
+    ['application/vnd.fujitsu.oasys3', 'oa3'],
+    ['application/vnd.fujitsu.oasysgp', 'fg5'],
+    ['application/vnd.fujitsu.oasysprs', 'bh2'],
+    ['application/vnd.fujixerox.ddd', 'ddd'],
+    ['application/vnd.fujixerox.docuworks', 'xdw'],
+    ['application/vnd.fujixerox.docuworks.binder', 'xbd'],
+    ['application/vnd.fuzzysheet', 'fzs'],
+    ['application/vnd.genomatix.tuxedo', 'txd'],
+    ['application/vnd.geogebra.file', 'ggb'],
+    ['application/vnd.geogebra.tool', 'ggt'],
+    ['application/vnd.geometry-explorer', 'gex'],
+    ['application/vnd.geonext', 'gxt'],
+    ['application/vnd.geoplan', 'g2w'],
+    ['application/vnd.geospace', 'g3w'],
+    ['application/vnd.gmx', 'gmx'],
+    ['application/vnd.google-earth.kml+xml', 'kml'],
+    ['application/vnd.google-earth.kmz', 'kmz'],
+    ['application/vnd.grafeq', 'gqf'],
+    ['application/vnd.groove-account', 'gac'],
+    ['application/vnd.groove-help', 'ghf'],
+    ['application/vnd.groove-identity-message', 'gim'],
+    ['application/vnd.groove-injector', 'grv'],
+    ['application/vnd.groove-tool-message', 'gtm'],
+    ['application/vnd.groove-tool-template', 'tpl'],
+    ['application/vnd.groove-vcard', 'vcg'],
+    ['application/vnd.hal+xml', 'hal'],
+    ['application/vnd.handheld-entertainment+xml', 'zmm'],
+    ['application/vnd.hbci', 'hbci'],
+    ['application/vnd.hhe.lesson-player', 'les'],
+    ['application/vnd.hp-hpgl', ['hgl', 'hpg', 'hpgl']],
+    ['application/vnd.hp-hpid', 'hpid'],
+    ['application/vnd.hp-hps', 'hps'],
+    ['application/vnd.hp-jlyt', 'jlt'],
+    ['application/vnd.hp-pcl', 'pcl'],
+    ['application/vnd.hp-pclxl', 'pclxl'],
+    ['application/vnd.hydrostatix.sof-data', 'sfd-hdstx'],
+    ['application/vnd.hzn-3d-crossword', 'x3d'],
+    ['application/vnd.ibm.minipay', 'mpy'],
+    ['application/vnd.ibm.modcap', 'afp'],
+    ['application/vnd.ibm.rights-management', 'irm'],
+    ['application/vnd.ibm.secure-container', 'sc'],
+    ['application/vnd.iccprofile', 'icc'],
+    ['application/vnd.igloader', 'igl'],
+    ['application/vnd.immervision-ivp', 'ivp'],
+    ['application/vnd.immervision-ivu', 'ivu'],
+    ['application/vnd.insors.igm', 'igm'],
+    ['application/vnd.intercon.formnet', 'xpw'],
+    ['application/vnd.intergeo', 'i2g'],
+    ['application/vnd.intu.qbo', 'qbo'],
+    ['application/vnd.intu.qfx', 'qfx'],
+    ['application/vnd.ipunplugged.rcprofile', 'rcprofile'],
+    ['application/vnd.irepository.package+xml', 'irp'],
+    ['application/vnd.is-xpr', 'xpr'],
+    ['application/vnd.isac.fcs', 'fcs'],
+    ['application/vnd.jam', 'jam'],
+    ['application/vnd.jcp.javame.midlet-rms', 'rms'],
+    ['application/vnd.jisp', 'jisp'],
+    ['application/vnd.joost.joda-archive', 'joda'],
+    ['application/vnd.kahootz', 'ktz'],
+    ['application/vnd.kde.karbon', 'karbon'],
+    ['application/vnd.kde.kchart', 'chrt'],
+    ['application/vnd.kde.kformula', 'kfo'],
+    ['application/vnd.kde.kivio', 'flw'],
+    ['application/vnd.kde.kontour', 'kon'],
+    ['application/vnd.kde.kpresenter', 'kpr'],
+    ['application/vnd.kde.kspread', 'ksp'],
+    ['application/vnd.kde.kword', 'kwd'],
+    ['application/vnd.kenameaapp', 'htke'],
+    ['application/vnd.kidspiration', 'kia'],
+    ['application/vnd.kinar', 'kne'],
+    ['application/vnd.koan', 'skp'],
+    ['application/vnd.kodak-descriptor', 'sse'],
+    ['application/vnd.las.las+xml', 'lasxml'],
+    ['application/vnd.llamagraphics.life-balance.desktop', 'lbd'],
+    ['application/vnd.llamagraphics.life-balance.exchange+xml', 'lbe'],
+    ['application/vnd.lotus-1-2-3', '123'],
+    ['application/vnd.lotus-approach', 'apr'],
+    ['application/vnd.lotus-freelance', 'pre'],
+    ['application/vnd.lotus-notes', 'nsf'],
+    ['application/vnd.lotus-organizer', 'org'],
+    ['application/vnd.lotus-screencam', 'scm'],
+    ['application/vnd.lotus-wordpro', 'lwp'],
+    ['application/vnd.macports.portpkg', 'portpkg'],
+    ['application/vnd.mcd', 'mcd'],
+    ['application/vnd.medcalcdata', 'mc1'],
+    ['application/vnd.mediastation.cdkey', 'cdkey'],
+    ['application/vnd.mfer', 'mwf'],
+    ['application/vnd.mfmp', 'mfm'],
+    ['application/vnd.micrografx.flo', 'flo'],
+    ['application/vnd.micrografx.igx', 'igx'],
+    ['application/vnd.mif', 'mif'],
+    ['application/vnd.mobius.daf', 'daf'],
+    ['application/vnd.mobius.dis', 'dis'],
+    ['application/vnd.mobius.mbk', 'mbk'],
+    ['application/vnd.mobius.mqy', 'mqy'],
+    ['application/vnd.mobius.msl', 'msl'],
+    ['application/vnd.mobius.plc', 'plc'],
+    ['application/vnd.mobius.txf', 'txf'],
+    ['application/vnd.mophun.application', 'mpn'],
+    ['application/vnd.mophun.certificate', 'mpc'],
+    ['application/vnd.mozilla.xul+xml', 'xul'],
+    ['application/vnd.ms-artgalry', 'cil'],
+    ['application/vnd.ms-cab-compressed', 'cab'],
+    ['application/vnd.ms-excel', ['xls', 'xla', 'xlc', 'xlm', 'xlt', 'xlw', 'xlb', 'xll']],
+    ['application/vnd.ms-excel.addin.macroenabled.12', 'xlam'],
+    ['application/vnd.ms-excel.sheet.binary.macroenabled.12', 'xlsb'],
+    ['application/vnd.ms-excel.sheet.macroenabled.12', 'xlsm'],
+    ['application/vnd.ms-excel.template.macroenabled.12', 'xltm'],
+    ['application/vnd.ms-fontobject', 'eot'],
+    ['application/vnd.ms-htmlhelp', 'chm'],
+    ['application/vnd.ms-ims', 'ims'],
+    ['application/vnd.ms-lrm', 'lrm'],
+    ['application/vnd.ms-officetheme', 'thmx'],
+    ['application/vnd.ms-outlook', 'msg'],
+    ['application/vnd.ms-pki.certstore', 'sst'],
+    ['application/vnd.ms-pki.pko', 'pko'],
+    ['application/vnd.ms-pki.seccat', 'cat'],
+    ['application/vnd.ms-pki.stl', 'stl'],
+    ['application/vnd.ms-pkicertstore', 'sst'],
+    ['application/vnd.ms-pkiseccat', 'cat'],
+    ['application/vnd.ms-pkistl', 'stl'],
+    ['application/vnd.ms-powerpoint', ['ppt', 'pot', 'pps', 'ppa', 'pwz']],
+    ['application/vnd.ms-powerpoint.addin.macroenabled.12', 'ppam'],
+    ['application/vnd.ms-powerpoint.presentation.macroenabled.12', 'pptm'],
+    ['application/vnd.ms-powerpoint.slide.macroenabled.12', 'sldm'],
+    ['application/vnd.ms-powerpoint.slideshow.macroenabled.12', 'ppsm'],
+    ['application/vnd.ms-powerpoint.template.macroenabled.12', 'potm'],
+    ['application/vnd.ms-project', 'mpp'],
+    ['application/vnd.ms-word.document.macroenabled.12', 'docm'],
+    ['application/vnd.ms-word.template.macroenabled.12', 'dotm'],
+    ['application/vnd.ms-works', ['wks', 'wcm', 'wdb', 'wps']],
+    ['application/vnd.ms-wpl', 'wpl'],
+    ['application/vnd.ms-xpsdocument', 'xps'],
+    ['application/vnd.mseq', 'mseq'],
+    ['application/vnd.musician', 'mus'],
+    ['application/vnd.muvee.style', 'msty'],
+    ['application/vnd.neurolanguage.nlu', 'nlu'],
+    ['application/vnd.noblenet-directory', 'nnd'],
+    ['application/vnd.noblenet-sealer', 'nns'],
+    ['application/vnd.noblenet-web', 'nnw'],
+    ['application/vnd.nokia.configuration-message', 'ncm'],
+    ['application/vnd.nokia.n-gage.data', 'ngdat'],
+    ['application/vnd.nokia.n-gage.symbian.install', 'n-gage'],
+    ['application/vnd.nokia.radio-preset', 'rpst'],
+    ['application/vnd.nokia.radio-presets', 'rpss'],
+    ['application/vnd.nokia.ringing-tone', 'rng'],
+    ['application/vnd.novadigm.edm', 'edm'],
+    ['application/vnd.novadigm.edx', 'edx'],
+    ['application/vnd.novadigm.ext', 'ext'],
+    ['application/vnd.oasis.opendocument.chart', 'odc'],
+    ['application/vnd.oasis.opendocument.chart-template', 'otc'],
+    ['application/vnd.oasis.opendocument.database', 'odb'],
+    ['application/vnd.oasis.opendocument.formula', 'odf'],
+    ['application/vnd.oasis.opendocument.formula-template', 'odft'],
+    ['application/vnd.oasis.opendocument.graphics', 'odg'],
+    ['application/vnd.oasis.opendocument.graphics-template', 'otg'],
+    ['application/vnd.oasis.opendocument.image', 'odi'],
+    ['application/vnd.oasis.opendocument.image-template', 'oti'],
+    ['application/vnd.oasis.opendocument.presentation', 'odp'],
+    ['application/vnd.oasis.opendocument.presentation-template', 'otp'],
+    ['application/vnd.oasis.opendocument.spreadsheet', 'ods'],
+    ['application/vnd.oasis.opendocument.spreadsheet-template', 'ots'],
+    ['application/vnd.oasis.opendocument.text', 'odt'],
+    ['application/vnd.oasis.opendocument.text-master', 'odm'],
+    ['application/vnd.oasis.opendocument.text-template', 'ott'],
+    ['application/vnd.oasis.opendocument.text-web', 'oth'],
+    ['application/vnd.olpc-sugar', 'xo'],
+    ['application/vnd.oma.dd2+xml', 'dd2'],
+    ['application/vnd.openofficeorg.extension', 'oxt'],
+    ['application/vnd.openxmlformats-officedocument.presentationml.presentation', 'pptx'],
+    ['application/vnd.openxmlformats-officedocument.presentationml.slide', 'sldx'],
+    ['application/vnd.openxmlformats-officedocument.presentationml.slideshow', 'ppsx'],
+    ['application/vnd.openxmlformats-officedocument.presentationml.template', 'potx'],
+    ['application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', 'xlsx'],
+    ['application/vnd.openxmlformats-officedocument.spreadsheetml.template', 'xltx'],
+    ['application/vnd.openxmlformats-officedocument.wordprocessingml.document', 'docx'],
+    ['application/vnd.openxmlformats-officedocument.wordprocessingml.template', 'dotx'],
+    ['application/vnd.osgeo.mapguide.package', 'mgp'],
+    ['application/vnd.osgi.dp', 'dp'],
+    ['application/vnd.palm', 'pdb'],
+    ['application/vnd.pawaafile', 'paw'],
+    ['application/vnd.pg.format', 'str'],
+    ['application/vnd.pg.osasli', 'ei6'],
+    ['application/vnd.picsel', 'efif'],
+    ['application/vnd.pmi.widget', 'wg'],
+    ['application/vnd.pocketlearn', 'plf'],
+    ['application/vnd.powerbuilder6', 'pbd'],
+    ['application/vnd.previewsystems.box', 'box'],
+    ['application/vnd.proteus.magazine', 'mgz'],
+    ['application/vnd.publishare-delta-tree', 'qps'],
+    ['application/vnd.pvi.ptid1', 'ptid'],
+    ['application/vnd.quark.quarkxpress', 'qxd'],
+    ['application/vnd.realvnc.bed', 'bed'],
+    ['application/vnd.recordare.musicxml', 'mxl'],
+    ['application/vnd.recordare.musicxml+xml', 'musicxml'],
+    ['application/vnd.rig.cryptonote', 'cryptonote'],
+    ['application/vnd.rim.cod', 'cod'],
+    ['application/vnd.rn-realmedia', 'rm'],
+    ['application/vnd.rn-realplayer', 'rnx'],
+    ['application/vnd.route66.link66+xml', 'link66'],
+    ['application/vnd.sailingtracker.track', 'st'],
+    ['application/vnd.seemail', 'see'],
+    ['application/vnd.sema', 'sema'],
+    ['application/vnd.semd', 'semd'],
+    ['application/vnd.semf', 'semf'],
+    ['application/vnd.shana.informed.formdata', 'ifm'],
+    ['application/vnd.shana.informed.formtemplate', 'itp'],
+    ['application/vnd.shana.informed.interchange', 'iif'],
+    ['application/vnd.shana.informed.package', 'ipk'],
+    ['application/vnd.simtech-mindmapper', 'twd'],
+    ['application/vnd.smaf', 'mmf'],
+    ['application/vnd.smart.teacher', 'teacher'],
+    ['application/vnd.solent.sdkm+xml', 'sdkm'],
+    ['application/vnd.spotfire.dxp', 'dxp'],
+    ['application/vnd.spotfire.sfs', 'sfs'],
+    ['application/vnd.stardivision.calc', 'sdc'],
+    ['application/vnd.stardivision.draw', 'sda'],
+    ['application/vnd.stardivision.impress', 'sdd'],
+    ['application/vnd.stardivision.math', 'smf'],
+    ['application/vnd.stardivision.writer', 'sdw'],
+    ['application/vnd.stardivision.writer-global', 'sgl'],
+    ['application/vnd.stepmania.stepchart', 'sm'],
+    ['application/vnd.sun.xml.calc', 'sxc'],
+    ['application/vnd.sun.xml.calc.template', 'stc'],
+    ['application/vnd.sun.xml.draw', 'sxd'],
+    ['application/vnd.sun.xml.draw.template', 'std'],
+    ['application/vnd.sun.xml.impress', 'sxi'],
+    ['application/vnd.sun.xml.impress.template', 'sti'],
+    ['application/vnd.sun.xml.math', 'sxm'],
+    ['application/vnd.sun.xml.writer', 'sxw'],
+    ['application/vnd.sun.xml.writer.global', 'sxg'],
+    ['application/vnd.sun.xml.writer.template', 'stw'],
+    ['application/vnd.sus-calendar', 'sus'],
+    ['application/vnd.svd', 'svd'],
+    ['application/vnd.symbian.install', 'sis'],
+    ['application/vnd.syncml+xml', 'xsm'],
+    ['application/vnd.syncml.dm+wbxml', 'bdm'],
+    ['application/vnd.syncml.dm+xml', 'xdm'],
+    ['application/vnd.tao.intent-module-archive', 'tao'],
+    ['application/vnd.tmobile-livetv', 'tmo'],
+    ['application/vnd.trid.tpt', 'tpt'],
+    ['application/vnd.triscape.mxs', 'mxs'],
+    ['application/vnd.trueapp', 'tra'],
+    ['application/vnd.ufdl', 'ufd'],
+    ['application/vnd.uiq.theme', 'utz'],
+    ['application/vnd.umajin', 'umj'],
+    ['application/vnd.unity', 'unityweb'],
+    ['application/vnd.uoml+xml', 'uoml'],
+    ['application/vnd.vcx', 'vcx'],
+    ['application/vnd.visio', 'vsd'],
+    ['application/vnd.visionary', 'vis'],
+    ['application/vnd.vsf', 'vsf'],
+    ['application/vnd.wap.wbxml', 'wbxml'],
+    ['application/vnd.wap.wmlc', 'wmlc'],
+    ['application/vnd.wap.wmlscriptc', 'wmlsc'],
+    ['application/vnd.webturbo', 'wtb'],
+    ['application/vnd.wolfram.player', 'nbp'],
+    ['application/vnd.wordperfect', 'wpd'],
+    ['application/vnd.wqd', 'wqd'],
+    ['application/vnd.wt.stf', 'stf'],
+    ['application/vnd.xara', ['web', 'xar']],
+    ['application/vnd.xfdl', 'xfdl'],
+    ['application/vnd.yamaha.hv-dic', 'hvd'],
+    ['application/vnd.yamaha.hv-script', 'hvs'],
+    ['application/vnd.yamaha.hv-voice', 'hvp'],
+    ['application/vnd.yamaha.openscoreformat', 'osf'],
+    ['application/vnd.yamaha.openscoreformat.osfpvg+xml', 'osfpvg'],
+    ['application/vnd.yamaha.smaf-audio', 'saf'],
+    ['application/vnd.yamaha.smaf-phrase', 'spf'],
+    ['application/vnd.yellowriver-custom-menu', 'cmp'],
+    ['application/vnd.zul', 'zir'],
+    ['application/vnd.zzazz.deck+xml', 'zaz'],
+    ['application/vocaltec-media-desc', 'vmd'],
+    ['application/vocaltec-media-file', 'vmf'],
+    ['application/voicexml+xml', 'vxml'],
+    ['application/widget', 'wgt'],
+    ['application/winhlp', 'hlp'],
+    ['application/wordperfect', ['wp', 'wp5', 'wp6', 'wpd']],
+    ['application/wordperfect6.0', ['w60', 'wp5']],
+    ['application/wordperfect6.1', 'w61'],
+    ['application/wsdl+xml', 'wsdl'],
+    ['application/wspolicy+xml', 'wspolicy'],
+    ['application/x-123', 'wk1'],
+    ['application/x-7z-compressed', '7z'],
+    ['application/x-abiword', 'abw'],
+    ['application/x-ace-compressed', 'ace'],
+    ['application/x-aim', 'aim'],
+    ['application/x-authorware-bin', 'aab'],
+    ['application/x-authorware-map', 'aam'],
+    ['application/x-authorware-seg', 'aas'],
+    ['application/x-bcpio', 'bcpio'],
+    ['application/x-binary', 'bin'],
+    ['application/x-binhex40', 'hqx'],
+    ['application/x-bittorrent', 'torrent'],
+    ['application/x-bsh', ['bsh', 'sh', 'shar']],
+    ['application/x-bytecode.elisp', 'elc'],
+    ['application/x-bytecode.python', 'pyc'],
+    ['application/x-bzip', 'bz'],
+    ['application/x-bzip2', ['boz', 'bz2']],
+    ['application/x-cdf', 'cdf'],
+    ['application/x-cdlink', 'vcd'],
+    ['application/x-chat', ['cha', 'chat']],
+    ['application/x-chess-pgn', 'pgn'],
+    ['application/x-cmu-raster', 'ras'],
+    ['application/x-cocoa', 'cco'],
+    ['application/x-compactpro', 'cpt'],
+    ['application/x-compress', 'z'],
+    ['application/x-compressed', ['tgz', 'gz', 'z', 'zip']],
+    ['application/x-conference', 'nsc'],
+    ['application/x-cpio', 'cpio'],
+    ['application/x-cpt', 'cpt'],
+    ['application/x-csh', 'csh'],
+    ['application/x-debian-package', 'deb'],
+    ['application/x-deepv', 'deepv'],
+    ['application/x-director', ['dir', 'dcr', 'dxr']],
+    ['application/x-doom', 'wad'],
+    ['application/x-dtbncx+xml', 'ncx'],
+    ['application/x-dtbook+xml', 'dtb'],
+    ['application/x-dtbresource+xml', 'res'],
+    ['application/x-dvi', 'dvi'],
+    ['application/x-elc', 'elc'],
+    ['application/x-envoy', ['env', 'evy']],
+    ['application/x-esrehber', 'es'],
+    ['application/x-excel', ['xls', 'xla', 'xlb', 'xlc', 'xld', 'xlk', 'xll', 'xlm', 'xlt', 'xlv', 'xlw']],
+    ['application/x-font-bdf', 'bdf'],
+    ['application/x-font-ghostscript', 'gsf'],
+    ['application/x-font-linux-psf', 'psf'],
+    ['application/x-font-otf', 'otf'],
+    ['application/x-font-pcf', 'pcf'],
+    ['application/x-font-snf', 'snf'],
+    ['application/x-font-ttf', 'ttf'],
+    ['application/x-font-type1', 'pfa'],
+    ['application/x-font-woff', 'woff'],
+    ['application/x-frame', 'mif'],
+    ['application/x-freelance', 'pre'],
+    ['application/x-futuresplash', 'spl'],
+    ['application/x-gnumeric', 'gnumeric'],
+    ['application/x-gsp', 'gsp'],
+    ['application/x-gss', 'gss'],
+    ['application/x-gtar', 'gtar'],
+    ['application/x-gzip', ['gz', 'gzip']],
+    ['application/x-hdf', 'hdf'],
+    ['application/x-helpfile', ['help', 'hlp']],
+    ['application/x-httpd-imap', 'imap'],
+    ['application/x-ima', 'ima'],
+    ['application/x-internet-signup', ['ins', 'isp']],
+    ['application/x-internett-signup', 'ins'],
+    ['application/x-inventor', 'iv'],
+    ['application/x-ip2', 'ip'],
+    ['application/x-iphone', 'iii'],
+    ['application/x-java-class', 'class'],
+    ['application/x-java-commerce', 'jcm'],
+    ['application/x-java-jnlp-file', 'jnlp'],
+    ['application/x-javascript', 'js'],
+    ['application/x-koan', ['skd', 'skm', 'skp', 'skt']],
+    ['application/x-ksh', 'ksh'],
+    ['application/x-latex', ['latex', 'ltx']],
+    ['application/x-lha', 'lha'],
+    ['application/x-lisp', 'lsp'],
+    ['application/x-livescreen', 'ivy'],
+    ['application/x-lotus', 'wq1'],
+    ['application/x-lotusscreencam', 'scm'],
+    ['application/x-lzh', 'lzh'],
+    ['application/x-lzx', 'lzx'],
+    ['application/x-mac-binhex40', 'hqx'],
+    ['application/x-macbinary', 'bin'],
+    ['application/x-magic-cap-package-1.0', 'mc$'],
+    ['application/x-mathcad', 'mcd'],
+    ['application/x-meme', 'mm'],
+    ['application/x-midi', ['mid', 'midi']],
+    ['application/x-mif', 'mif'],
+    ['application/x-mix-transfer', 'nix'],
+    ['application/x-mobipocket-ebook', 'prc'],
+    ['application/x-mplayer2', 'asx'],
+    ['application/x-ms-application', 'application'],
+    ['application/x-ms-wmd', 'wmd'],
+    ['application/x-ms-wmz', 'wmz'],
+    ['application/x-ms-xbap', 'xbap'],
+    ['application/x-msaccess', 'mdb'],
+    ['application/x-msbinder', 'obd'],
+    ['application/x-mscardfile', 'crd'],
+    ['application/x-msclip', 'clp'],
+    ['application/x-msdownload', ['exe', 'dll']],
+    ['application/x-msexcel', ['xls', 'xla', 'xlw']],
+    ['application/x-msmediaview', ['mvb', 'm13', 'm14']],
+    ['application/x-msmetafile', 'wmf'],
+    ['application/x-msmoney', 'mny'],
+    ['application/x-mspowerpoint', 'ppt'],
+    ['application/x-mspublisher', 'pub'],
+    ['application/x-msschedule', 'scd'],
+    ['application/x-msterminal', 'trm'],
+    ['application/x-mswrite', 'wri'],
+    ['application/x-navi-animation', 'ani'],
+    ['application/x-navidoc', 'nvd'],
+    ['application/x-navimap', 'map'],
+    ['application/x-navistyle', 'stl'],
+    ['application/x-netcdf', ['cdf', 'nc']],
+    ['application/x-newton-compatible-pkg', 'pkg'],
+    ['application/x-nokia-9000-communicator-add-on-software', 'aos'],
+    ['application/x-omc', 'omc'],
+    ['application/x-omcdatamaker', 'omcd'],
+    ['application/x-omcregerator', 'omcr'],
+    ['application/x-pagemaker', ['pm4', 'pm5']],
+    ['application/x-pcl', 'pcl'],
+    ['application/x-perfmon', ['pma', 'pmc', 'pml', 'pmr', 'pmw']],
+    ['application/x-pixclscript', 'plx'],
+    ['application/x-pkcs10', 'p10'],
+    ['application/x-pkcs12', ['p12', 'pfx']],
+    ['application/x-pkcs7-certificates', ['p7b', 'spc']],
+    ['application/x-pkcs7-certreqresp', 'p7r'],
+    ['application/x-pkcs7-mime', ['p7m', 'p7c']],
+    ['application/x-pkcs7-signature', ['p7s', 'p7a']],
+    ['application/x-pointplus', 'css'],
+    ['application/x-portable-anymap', 'pnm'],
+    ['application/x-project', ['mpc', 'mpt', 'mpv', 'mpx']],
+    ['application/x-qpro', 'wb1'],
+    ['application/x-rar-compressed', 'rar'],
+    ['application/x-rtf', 'rtf'],
+    ['application/x-sdp', 'sdp'],
+    ['application/x-sea', 'sea'],
+    ['application/x-seelogo', 'sl'],
+    ['application/x-sh', 'sh'],
+    ['application/x-shar', ['shar', 'sh']],
+    ['application/x-shockwave-flash', 'swf'],
+    ['application/x-silverlight-app', 'xap'],
+    ['application/x-sit', 'sit'],
+    ['application/x-sprite', ['spr', 'sprite']],
+    ['application/x-stuffit', 'sit'],
+    ['application/x-stuffitx', 'sitx'],
+    ['application/x-sv4cpio', 'sv4cpio'],
+    ['application/x-sv4crc', 'sv4crc'],
+    ['application/x-tar', 'tar'],
+    ['application/x-tbook', ['sbk', 'tbk']],
+    ['application/x-tcl', 'tcl'],
+    ['application/x-tex', 'tex'],
+    ['application/x-tex-tfm', 'tfm'],
+    ['application/x-texinfo', ['texi', 'texinfo']],
+    ['application/x-troff', ['roff', 't', 'tr']],
+    ['application/x-troff-man', 'man'],
+    ['application/x-troff-me', 'me'],
+    ['application/x-troff-ms', 'ms'],
+    ['application/x-troff-msvideo', 'avi'],
+    ['application/x-ustar', 'ustar'],
+    ['application/x-visio', ['vsd', 'vst', 'vsw']],
+    ['application/x-vnd.audioexplosion.mzz', 'mzz'],
+    ['application/x-vnd.ls-xpix', 'xpix'],
+    ['application/x-vrml', 'vrml'],
+    ['application/x-wais-source', ['src', 'wsrc']],
+    ['application/x-winhelp', 'hlp'],
+    ['application/x-wintalk', 'wtk'],
+    ['application/x-world', ['wrl', 'svr']],
+    ['application/x-wpwin', 'wpd'],
+    ['application/x-wri', 'wri'],
+    ['application/x-x509-ca-cert', ['cer', 'crt', 'der']],
+    ['application/x-x509-user-cert', 'crt'],
+    ['application/x-xfig', 'fig'],
+    ['application/x-xpinstall', 'xpi'],
+    ['application/x-zip-compressed', 'zip'],
+    ['application/xcap-diff+xml', 'xdf'],
+    ['application/xenc+xml', 'xenc'],
+    ['application/xhtml+xml', 'xhtml'],
+    ['application/xml', 'xml'],
+    ['application/xml-dtd', 'dtd'],
+    ['application/xop+xml', 'xop'],
+    ['application/xslt+xml', 'xslt'],
+    ['application/xspf+xml', 'xspf'],
+    ['application/xv+xml', 'mxml'],
+    ['application/yang', 'yang'],
+    ['application/yin+xml', 'yin'],
+    ['application/ynd.ms-pkipko', 'pko'],
+    ['application/zip', 'zip'],
+    ['audio/adpcm', 'adp'],
+    ['audio/aiff', ['aiff', 'aif', 'aifc']],
+    ['audio/basic', ['snd', 'au']],
+    ['audio/it', 'it'],
+    ['audio/make', ['funk', 'my', 'pfunk']],
+    ['audio/make.my.funk', 'pfunk'],
+    ['audio/mid', ['mid', 'rmi']],
+    ['audio/midi', ['midi', 'kar', 'mid']],
+    ['audio/mod', 'mod'],
+    ['audio/mp4', 'mp4a'],
+    ['audio/mpeg', ['mpga', 'mp3', 'm2a', 'mp2', 'mpa', 'mpg']],
+    ['audio/mpeg3', 'mp3'],
+    ['audio/nspaudio', ['la', 'lma']],
+    ['audio/ogg', 'oga'],
+    ['audio/s3m', 's3m'],
+    ['audio/tsp-audio', 'tsi'],
+    ['audio/tsplayer', 'tsp'],
+    ['audio/vnd.dece.audio', 'uva'],
+    ['audio/vnd.digital-winds', 'eol'],
+    ['audio/vnd.dra', 'dra'],
+    ['audio/vnd.dts', 'dts'],
+    ['audio/vnd.dts.hd', 'dtshd'],
+    ['audio/vnd.lucent.voice', 'lvp'],
+    ['audio/vnd.ms-playready.media.pya', 'pya'],
+    ['audio/vnd.nuera.ecelp4800', 'ecelp4800'],
+    ['audio/vnd.nuera.ecelp7470', 'ecelp7470'],
+    ['audio/vnd.nuera.ecelp9600', 'ecelp9600'],
+    ['audio/vnd.qcelp', 'qcp'],
+    ['audio/vnd.rip', 'rip'],
+    ['audio/voc', 'voc'],
+    ['audio/voxware', 'vox'],
+    ['audio/wav', 'wav'],
+    ['audio/webm', 'weba'],
+    ['audio/x-aac', 'aac'],
+    ['audio/x-adpcm', 'snd'],
+    ['audio/x-aiff', ['aiff', 'aif', 'aifc']],
+    ['audio/x-au', 'au'],
+    ['audio/x-gsm', ['gsd', 'gsm']],
+    ['audio/x-jam', 'jam'],
+    ['audio/x-liveaudio', 'lam'],
+    ['audio/x-mid', ['mid', 'midi']],
+    ['audio/x-midi', ['midi', 'mid']],
+    ['audio/x-mod', 'mod'],
+    ['audio/x-mpeg', 'mp2'],
+    ['audio/x-mpeg-3', 'mp3'],
+    ['audio/x-mpegurl', 'm3u'],
+    ['audio/x-mpequrl', 'm3u'],
+    ['audio/x-ms-wax', 'wax'],
+    ['audio/x-ms-wma', 'wma'],
+    ['audio/x-nspaudio', ['la', 'lma']],
+    ['audio/x-pn-realaudio', ['ra', 'ram', 'rm', 'rmm', 'rmp']],
+    ['audio/x-pn-realaudio-plugin', ['ra', 'rmp', 'rpm']],
+    ['audio/x-psid', 'sid'],
+    ['audio/x-realaudio', 'ra'],
+    ['audio/x-twinvq', 'vqf'],
+    ['audio/x-twinvq-plugin', ['vqe', 'vql']],
+    ['audio/x-vnd.audioexplosion.mjuicemediafile', 'mjf'],
+    ['audio/x-voc', 'voc'],
+    ['audio/x-wav', 'wav'],
+    ['audio/xm', 'xm'],
+    ['chemical/x-cdx', 'cdx'],
+    ['chemical/x-cif', 'cif'],
+    ['chemical/x-cmdf', 'cmdf'],
+    ['chemical/x-cml', 'cml'],
+    ['chemical/x-csml', 'csml'],
+    ['chemical/x-pdb', ['pdb', 'xyz']],
+    ['chemical/x-xyz', 'xyz'],
+    ['drawing/x-dwf', 'dwf'],
+    ['i-world/i-vrml', 'ivr'],
+    ['image/bmp', ['bmp', 'bm']],
+    ['image/cgm', 'cgm'],
+    ['image/cis-cod', 'cod'],
+    ['image/cmu-raster', ['ras', 'rast']],
+    ['image/fif', 'fif'],
+    ['image/florian', ['flo', 'turbot']],
+    ['image/g3fax', 'g3'],
+    ['image/gif', 'gif'],
+    ['image/ief', ['ief', 'iefs']],
+    ['image/jpeg', ['jpeg', 'jpe', 'jpg', 'jfif', 'jfif-tbnl']],
+    ['image/jutvision', 'jut'],
+    ['image/ktx', 'ktx'],
+    ['image/naplps', ['nap', 'naplps']],
+    ['image/pict', ['pic', 'pict']],
+    ['image/pipeg', 'jfif'],
+    ['image/pjpeg', ['jfif', 'jpe', 'jpeg', 'jpg']],
+    ['image/png', ['png', 'x-png']],
+    ['image/prs.btif', 'btif'],
+    ['image/svg+xml', 'svg'],
+    ['image/tiff', ['tif', 'tiff']],
+    ['image/vasa', 'mcf'],
+    ['image/vnd.adobe.photoshop', 'psd'],
+    ['image/vnd.dece.graphic', 'uvi'],
+    ['image/vnd.djvu', 'djvu'],
+    ['image/vnd.dvb.subtitle', 'sub'],
+    ['image/vnd.dwg', ['dwg', 'dxf', 'svf']],
+    ['image/vnd.dxf', 'dxf'],
+    ['image/vnd.fastbidsheet', 'fbs'],
+    ['image/vnd.fpx', 'fpx'],
+    ['image/vnd.fst', 'fst'],
+    ['image/vnd.fujixerox.edmics-mmr', 'mmr'],
+    ['image/vnd.fujixerox.edmics-rlc', 'rlc'],
+    ['image/vnd.ms-modi', 'mdi'],
+    ['image/vnd.net-fpx', ['fpx', 'npx']],
+    ['image/vnd.rn-realflash', 'rf'],
+    ['image/vnd.rn-realpix', 'rp'],
+    ['image/vnd.wap.wbmp', 'wbmp'],
+    ['image/vnd.xiff', 'xif'],
+    ['image/webp', 'webp'],
+    ['image/x-cmu-raster', 'ras'],
+    ['image/x-cmx', 'cmx'],
+    ['image/x-dwg', ['dwg', 'dxf', 'svf']],
+    ['image/x-freehand', 'fh'],
+    ['image/x-icon', 'ico'],
+    ['image/x-jg', 'art'],
+    ['image/x-jps', 'jps'],
+    ['image/x-niff', ['niff', 'nif']],
+    ['image/x-pcx', 'pcx'],
+    ['image/x-pict', ['pct', 'pic']],
+    ['image/x-portable-anymap', 'pnm'],
+    ['image/x-portable-bitmap', 'pbm'],
+    ['image/x-portable-graymap', 'pgm'],
+    ['image/x-portable-greymap', 'pgm'],
+    ['image/x-portable-pixmap', 'ppm'],
+    ['image/x-quicktime', ['qif', 'qti', 'qtif']],
+    ['image/x-rgb', 'rgb'],
+    ['image/x-tiff', ['tif', 'tiff']],
+    ['image/x-windows-bmp', 'bmp'],
+    ['image/x-xbitmap', 'xbm'],
+    ['image/x-xbm', 'xbm'],
+    ['image/x-xpixmap', ['xpm', 'pm']],
+    ['image/x-xwd', 'xwd'],
+    ['image/x-xwindowdump', 'xwd'],
+    ['image/xbm', 'xbm'],
+    ['image/xpm', 'xpm'],
+    ['message/rfc822', ['eml', 'mht', 'mhtml', 'nws', 'mime']],
+    ['model/iges', ['iges', 'igs']],
+    ['model/mesh', 'msh'],
+    ['model/vnd.collada+xml', 'dae'],
+    ['model/vnd.dwf', 'dwf'],
+    ['model/vnd.gdl', 'gdl'],
+    ['model/vnd.gtw', 'gtw'],
+    ['model/vnd.mts', 'mts'],
+    ['model/vnd.vtu', 'vtu'],
+    ['model/vrml', ['vrml', 'wrl', 'wrz']],
+    ['model/x-pov', 'pov'],
+    ['multipart/x-gzip', 'gzip'],
+    ['multipart/x-ustar', 'ustar'],
+    ['multipart/x-zip', 'zip'],
+    ['music/crescendo', ['mid', 'midi']],
+    ['music/x-karaoke', 'kar'],
+    ['paleovu/x-pv', 'pvu'],
+    ['text/asp', 'asp'],
+    ['text/calendar', 'ics'],
+    ['text/css', 'css'],
+    ['text/csv', 'csv'],
+    ['text/ecmascript', 'js'],
+    ['text/h323', '323'],
+    ['text/html', ['html', 'htm', 'stm', 'acgi', 'htmls', 'htx', 'shtml']],
+    ['text/iuls', 'uls'],
+    ['text/javascript', 'js'],
+    ['text/mcf', 'mcf'],
+    ['text/n3', 'n3'],
+    ['text/pascal', 'pas'],
+    [
+        'text/plain',
+        [
+            'txt',
+            'bas',
+            'c',
+            'h',
+            'c++',
+            'cc',
+            'com',
+            'conf',
+            'cxx',
+            'def',
+            'f',
+            'f90',
+            'for',
+            'g',
+            'hh',
+            'idc',
+            'jav',
+            'java',
+            'list',
+            'log',
+            'lst',
+            'm',
+            'mar',
+            'pl',
+            'sdml',
+            'text'
+        ]
+    ],
+    ['text/plain-bas', 'par'],
+    ['text/prs.lines.tag', 'dsc'],
+    ['text/richtext', ['rtx', 'rt', 'rtf']],
+    ['text/scriplet', 'wsc'],
+    ['text/scriptlet', 'sct'],
+    ['text/sgml', ['sgm', 'sgml']],
+    ['text/tab-separated-values', 'tsv'],
+    ['text/troff', 't'],
+    ['text/turtle', 'ttl'],
+    ['text/uri-list', ['uni', 'unis', 'uri', 'uris']],
+    ['text/vnd.abc', 'abc'],
+    ['text/vnd.curl', 'curl'],
+    ['text/vnd.curl.dcurl', 'dcurl'],
+    ['text/vnd.curl.mcurl', 'mcurl'],
+    ['text/vnd.curl.scurl', 'scurl'],
+    ['text/vnd.fly', 'fly'],
+    ['text/vnd.fmi.flexstor', 'flx'],
+    ['text/vnd.graphviz', 'gv'],
+    ['text/vnd.in3d.3dml', '3dml'],
+    ['text/vnd.in3d.spot', 'spot'],
+    ['text/vnd.rn-realtext', 'rt'],
+    ['text/vnd.sun.j2me.app-descriptor', 'jad'],
+    ['text/vnd.wap.wml', 'wml'],
+    ['text/vnd.wap.wmlscript', 'wmls'],
+    ['text/webviewhtml', 'htt'],
+    ['text/x-asm', ['asm', 's']],
+    ['text/x-audiosoft-intra', 'aip'],
+    ['text/x-c', ['c', 'cc', 'cpp']],
+    ['text/x-component', 'htc'],
+    ['text/x-fortran', ['for', 'f', 'f77', 'f90']],
+    ['text/x-h', ['h', 'hh']],
+    ['text/x-java-source', ['java', 'jav']],
+    ['text/x-java-source,java', 'java'],
+    ['text/x-la-asf', 'lsx'],
+    ['text/x-m', 'm'],
+    ['text/x-pascal', 'p'],
+    ['text/x-script', 'hlb'],
+    ['text/x-script.csh', 'csh'],
+    ['text/x-script.elisp', 'el'],
+    ['text/x-script.guile', 'scm'],
+    ['text/x-script.ksh', 'ksh'],
+    ['text/x-script.lisp', 'lsp'],
+    ['text/x-script.perl', 'pl'],
+    ['text/x-script.perl-module', 'pm'],
+    ['text/x-script.phyton', 'py'],
+    ['text/x-script.rexx', 'rexx'],
+    ['text/x-script.scheme', 'scm'],
+    ['text/x-script.sh', 'sh'],
+    ['text/x-script.tcl', 'tcl'],
+    ['text/x-script.tcsh', 'tcsh'],
+    ['text/x-script.zsh', 'zsh'],
+    ['text/x-server-parsed-html', ['shtml', 'ssi']],
+    ['text/x-setext', 'etx'],
+    ['text/x-sgml', ['sgm', 'sgml']],
+    ['text/x-speech', ['spc', 'talk']],
+    ['text/x-uil', 'uil'],
+    ['text/x-uuencode', ['uu', 'uue']],
+    ['text/x-vcalendar', 'vcs'],
+    ['text/x-vcard', 'vcf'],
+    ['text/xml', 'xml'],
+    ['video/3gpp', '3gp'],
+    ['video/3gpp2', '3g2'],
+    ['video/animaflex', 'afl'],
+    ['video/avi', 'avi'],
+    ['video/avs-video', 'avs'],
+    ['video/dl', 'dl'],
+    ['video/fli', 'fli'],
+    ['video/gl', 'gl'],
+    ['video/h261', 'h261'],
+    ['video/h263', 'h263'],
+    ['video/h264', 'h264'],
+    ['video/jpeg', 'jpgv'],
+    ['video/jpm', 'jpm'],
+    ['video/mj2', 'mj2'],
+    ['video/mp4', 'mp4'],
+    ['video/mpeg', ['mpeg', 'mp2', 'mpa', 'mpe', 'mpg', 'mpv2', 'm1v', 'm2v', 'mp3']],
+    ['video/msvideo', 'avi'],
+    ['video/ogg', 'ogv'],
+    ['video/quicktime', ['mov', 'qt', 'moov']],
+    ['video/vdo', 'vdo'],
+    ['video/vivo', ['viv', 'vivo']],
+    ['video/vnd.dece.hd', 'uvh'],
+    ['video/vnd.dece.mobile', 'uvm'],
+    ['video/vnd.dece.pd', 'uvp'],
+    ['video/vnd.dece.sd', 'uvs'],
+    ['video/vnd.dece.video', 'uvv'],
+    ['video/vnd.fvt', 'fvt'],
+    ['video/vnd.mpegurl', 'mxu'],
+    ['video/vnd.ms-playready.media.pyv', 'pyv'],
+    ['video/vnd.rn-realvideo', 'rv'],
+    ['video/vnd.uvvu.mp4', 'uvu'],
+    ['video/vnd.vivo', ['viv', 'vivo']],
+    ['video/vosaic', 'vos'],
+    ['video/webm', 'webm'],
+    ['video/x-amt-demorun', 'xdr'],
+    ['video/x-amt-showrun', 'xsr'],
+    ['video/x-atomic3d-feature', 'fmf'],
+    ['video/x-dl', 'dl'],
+    ['video/x-dv', ['dif', 'dv']],
+    ['video/x-f4v', 'f4v'],
+    ['video/x-fli', 'fli'],
+    ['video/x-flv', 'flv'],
+    ['video/x-gl', 'gl'],
+    ['video/x-isvideo', 'isu'],
+    ['video/x-la-asf', ['lsf', 'lsx']],
+    ['video/x-m4v', 'm4v'],
+    ['video/x-motion-jpeg', 'mjpg'],
+    ['video/x-mpeg', ['mp3', 'mp2']],
+    ['video/x-mpeq2a', 'mp2'],
+    ['video/x-ms-asf', ['asf', 'asr', 'asx']],
+    ['video/x-ms-asf-plugin', 'asx'],
+    ['video/x-ms-wm', 'wm'],
+    ['video/x-ms-wmv', 'wmv'],
+    ['video/x-ms-wmx', 'wmx'],
+    ['video/x-ms-wvx', 'wvx'],
+    ['video/x-msvideo', 'avi'],
+    ['video/x-qtc', 'qtc'],
+    ['video/x-scm', 'scm'],
+    ['video/x-sgi-movie', ['movie', 'mv']],
+    ['windows/metafile', 'wmf'],
+    ['www/mime', 'mime'],
+    ['x-conference/x-cooltalk', 'ice'],
+    ['x-music/x-midi', ['mid', 'midi']],
+    ['x-world/x-3dmf', ['3dm', '3dmf', 'qd3', 'qd3d']],
+    ['x-world/x-svr', 'svr'],
+    ['x-world/x-vrml', ['flr', 'vrml', 'wrl', 'wrz', 'xaf', 'xof']],
+    ['x-world/x-vrt', 'vrt'],
+    ['xgl/drawing', 'xgz'],
+    ['xgl/movie', 'xmz']
+]);
+const extensions = new Map([
+    ['123', 'application/vnd.lotus-1-2-3'],
+    ['323', 'text/h323'],
+    ['*', 'application/octet-stream'],
+    ['3dm', 'x-world/x-3dmf'],
+    ['3dmf', 'x-world/x-3dmf'],
+    ['3dml', 'text/vnd.in3d.3dml'],
+    ['3g2', 'video/3gpp2'],
+    ['3gp', 'video/3gpp'],
+    ['7z', 'application/x-7z-compressed'],
+    ['a', 'application/octet-stream'],
+    ['aab', 'application/x-authorware-bin'],
+    ['aac', 'audio/x-aac'],
+    ['aam', 'application/x-authorware-map'],
+    ['aas', 'application/x-authorware-seg'],
+    ['abc', 'text/vnd.abc'],
+    ['abw', 'application/x-abiword'],
+    ['ac', 'application/pkix-attr-cert'],
+    ['acc', 'application/vnd.americandynamics.acc'],
+    ['ace', 'application/x-ace-compressed'],
+    ['acgi', 'text/html'],
+    ['acu', 'application/vnd.acucobol'],
+    ['acx', 'application/internet-property-stream'],
+    ['adp', 'audio/adpcm'],
+    ['aep', 'application/vnd.audiograph'],
+    ['afl', 'video/animaflex'],
+    ['afp', 'application/vnd.ibm.modcap'],
+    ['ahead', 'application/vnd.ahead.space'],
+    ['ai', 'application/postscript'],
+    ['aif', ['audio/aiff', 'audio/x-aiff']],
+    ['aifc', ['audio/aiff', 'audio/x-aiff']],
+    ['aiff', ['audio/aiff', 'audio/x-aiff']],
+    ['aim', 'application/x-aim'],
+    ['aip', 'text/x-audiosoft-intra'],
+    ['air', 'application/vnd.adobe.air-application-installer-package+zip'],
+    ['ait', 'application/vnd.dvb.ait'],
+    ['ami', 'application/vnd.amiga.ami'],
+    ['ani', 'application/x-navi-animation'],
+    ['aos', 'application/x-nokia-9000-communicator-add-on-software'],
+    ['apk', 'application/vnd.android.package-archive'],
+    ['application', 'application/x-ms-application'],
+    ['apr', 'application/vnd.lotus-approach'],
+    ['aps', 'application/mime'],
+    ['arc', 'application/octet-stream'],
+    ['arj', ['application/arj', 'application/octet-stream']],
+    ['art', 'image/x-jg'],
+    ['asf', 'video/x-ms-asf'],
+    ['asm', 'text/x-asm'],
+    ['aso', 'application/vnd.accpac.simply.aso'],
+    ['asp', 'text/asp'],
+    ['asr', 'video/x-ms-asf'],
+    ['asx', ['video/x-ms-asf', 'application/x-mplayer2', 'video/x-ms-asf-plugin']],
+    ['atc', 'application/vnd.acucorp'],
+    ['atomcat', 'application/atomcat+xml'],
+    ['atomsvc', 'application/atomsvc+xml'],
+    ['atx', 'application/vnd.antix.game-component'],
+    ['au', ['audio/basic', 'audio/x-au']],
+    ['avi', ['video/avi', 'video/msvideo', 'application/x-troff-msvideo', 'video/x-msvideo']],
+    ['avs', 'video/avs-video'],
+    ['aw', 'application/applixware'],
+    ['axs', 'application/olescript'],
+    ['azf', 'application/vnd.airzip.filesecure.azf'],
+    ['azs', 'application/vnd.airzip.filesecure.azs'],
+    ['azw', 'application/vnd.amazon.ebook'],
+    ['bas', 'text/plain'],
+    ['bcpio', 'application/x-bcpio'],
+    ['bdf', 'application/x-font-bdf'],
+    ['bdm', 'application/vnd.syncml.dm+wbxml'],
+    ['bed', 'application/vnd.realvnc.bed'],
+    ['bh2', 'application/vnd.fujitsu.oasysprs'],
+    ['bin', ['application/octet-stream', 'application/mac-binary', 'application/macbinary', 'application/x-macbinary', 'application/x-binary']],
+    ['bm', 'image/bmp'],
+    ['bmi', 'application/vnd.bmi'],
+    ['bmp', ['image/bmp', 'image/x-windows-bmp']],
+    ['boo', 'application/book'],
+    ['book', 'application/book'],
+    ['box', 'application/vnd.previewsystems.box'],
+    ['boz', 'application/x-bzip2'],
+    ['bsh', 'application/x-bsh'],
+    ['btif', 'image/prs.btif'],
+    ['bz', 'application/x-bzip'],
+    ['bz2', 'application/x-bzip2'],
+    ['c', ['text/plain', 'text/x-c']],
+    ['c++', 'text/plain'],
+    ['c11amc', 'application/vnd.cluetrust.cartomobile-config'],
+    ['c11amz', 'application/vnd.cluetrust.cartomobile-config-pkg'],
+    ['c4g', 'application/vnd.clonk.c4group'],
+    ['cab', 'application/vnd.ms-cab-compressed'],
+    ['car', 'application/vnd.curl.car'],
+    ['cat', ['application/vnd.ms-pkiseccat', 'application/vnd.ms-pki.seccat']],
+    ['cc', ['text/plain', 'text/x-c']],
+    ['ccad', 'application/clariscad'],
+    ['cco', 'application/x-cocoa'],
+    ['ccxml', 'application/ccxml+xml,'],
+    ['cdbcmsg', 'application/vnd.contact.cmsg'],
+    ['cdf', ['application/cdf', 'application/x-cdf', 'application/x-netcdf']],
+    ['cdkey', 'application/vnd.mediastation.cdkey'],
+    ['cdmia', 'application/cdmi-capability'],
+    ['cdmic', 'application/cdmi-container'],
+    ['cdmid', 'application/cdmi-domain'],
+    ['cdmio', 'application/cdmi-object'],
+    ['cdmiq', 'application/cdmi-queue'],
+    ['cdx', 'chemical/x-cdx'],
+    ['cdxml', 'application/vnd.chemdraw+xml'],
+    ['cdy', 'application/vnd.cinderella'],
+    ['cer', ['application/pkix-cert', 'application/x-x509-ca-cert']],
+    ['cgm', 'image/cgm'],
+    ['cha', 'application/x-chat'],
+    ['chat', 'application/x-chat'],
+    ['chm', 'application/vnd.ms-htmlhelp'],
+    ['chrt', 'application/vnd.kde.kchart'],
+    ['cif', 'chemical/x-cif'],
+    ['cii', 'application/vnd.anser-web-certificate-issue-initiation'],
+    ['cil', 'application/vnd.ms-artgalry'],
+    ['cla', 'application/vnd.claymore'],
+    ['class', ['application/octet-stream', 'application/java', 'application/java-byte-code', 'application/java-vm', 'application/x-java-class']],
+    ['clkk', 'application/vnd.crick.clicker.keyboard'],
+    ['clkp', 'application/vnd.crick.clicker.palette'],
+    ['clkt', 'application/vnd.crick.clicker.template'],
+    ['clkw', 'application/vnd.crick.clicker.wordbank'],
+    ['clkx', 'application/vnd.crick.clicker'],
+    ['clp', 'application/x-msclip'],
+    ['cmc', 'application/vnd.cosmocaller'],
+    ['cmdf', 'chemical/x-cmdf'],
+    ['cml', 'chemical/x-cml'],
+    ['cmp', 'application/vnd.yellowriver-custom-menu'],
+    ['cmx', 'image/x-cmx'],
+    ['cod', ['image/cis-cod', 'application/vnd.rim.cod']],
+    ['com', ['application/octet-stream', 'text/plain']],
+    ['conf', 'text/plain'],
+    ['cpio', 'application/x-cpio'],
+    ['cpp', 'text/x-c'],
+    ['cpt', ['application/mac-compactpro', 'application/x-compactpro', 'application/x-cpt']],
+    ['crd', 'application/x-mscardfile'],
+    ['crl', ['application/pkix-crl', 'application/pkcs-crl']],
+    ['crt', ['application/pkix-cert', 'application/x-x509-user-cert', 'application/x-x509-ca-cert']],
+    ['cryptonote', 'application/vnd.rig.cryptonote'],
+    ['csh', ['text/x-script.csh', 'application/x-csh']],
+    ['csml', 'chemical/x-csml'],
+    ['csp', 'application/vnd.commonspace'],
+    ['css', ['text/css', 'application/x-pointplus']],
+    ['csv', 'text/csv'],
+    ['cu', 'application/cu-seeme'],
+    ['curl', 'text/vnd.curl'],
+    ['cww', 'application/prs.cww'],
+    ['cxx', 'text/plain'],
+    ['dae', 'model/vnd.collada+xml'],
+    ['daf', 'application/vnd.mobius.daf'],
+    ['davmount', 'application/davmount+xml'],
+    ['dcr', 'application/x-director'],
+    ['dcurl', 'text/vnd.curl.dcurl'],
+    ['dd2', 'application/vnd.oma.dd2+xml'],
+    ['ddd', 'application/vnd.fujixerox.ddd'],
+    ['deb', 'application/x-debian-package'],
+    ['deepv', 'application/x-deepv'],
+    ['def', 'text/plain'],
+    ['der', 'application/x-x509-ca-cert'],
+    ['dfac', 'application/vnd.dreamfactory'],
+    ['dif', 'video/x-dv'],
+    ['dir', 'application/x-director'],
+    ['dis', 'application/vnd.mobius.dis'],
+    ['djvu', 'image/vnd.djvu'],
+    ['dl', ['video/dl', 'video/x-dl']],
+    ['dll', 'application/x-msdownload'],
+    ['dms', 'application/octet-stream'],
+    ['dna', 'application/vnd.dna'],
+    ['doc', 'application/msword'],
+    ['docm', 'application/vnd.ms-word.document.macroenabled.12'],
+    ['docx', 'application/vnd.openxmlformats-officedocument.wordprocessingml.document'],
+    ['dot', 'application/msword'],
+    ['dotm', 'application/vnd.ms-word.template.macroenabled.12'],
+    ['dotx', 'application/vnd.openxmlformats-officedocument.wordprocessingml.template'],
+    ['dp', ['application/commonground', 'application/vnd.osgi.dp']],
+    ['dpg', 'application/vnd.dpgraph'],
+    ['dra', 'audio/vnd.dra'],
+    ['drw', 'application/drafting'],
+    ['dsc', 'text/prs.lines.tag'],
+    ['dssc', 'application/dssc+der'],
+    ['dtb', 'application/x-dtbook+xml'],
+    ['dtd', 'application/xml-dtd'],
+    ['dts', 'audio/vnd.dts'],
+    ['dtshd', 'audio/vnd.dts.hd'],
+    ['dump', 'application/octet-stream'],
+    ['dv', 'video/x-dv'],
+    ['dvi', 'application/x-dvi'],
+    ['dwf', ['model/vnd.dwf', 'drawing/x-dwf']],
+    ['dwg', ['application/acad', 'image/vnd.dwg', 'image/x-dwg']],
+    ['dxf', ['application/dxf', 'image/vnd.dwg', 'image/vnd.dxf', 'image/x-dwg']],
+    ['dxp', 'application/vnd.spotfire.dxp'],
+    ['dxr', 'application/x-director'],
+    ['ecelp4800', 'audio/vnd.nuera.ecelp4800'],
+    ['ecelp7470', 'audio/vnd.nuera.ecelp7470'],
+    ['ecelp9600', 'audio/vnd.nuera.ecelp9600'],
+    ['edm', 'application/vnd.novadigm.edm'],
+    ['edx', 'application/vnd.novadigm.edx'],
+    ['efif', 'application/vnd.picsel'],
+    ['ei6', 'application/vnd.pg.osasli'],
+    ['el', 'text/x-script.elisp'],
+    ['elc', ['application/x-elc', 'application/x-bytecode.elisp']],
+    ['eml', 'message/rfc822'],
+    ['emma', 'application/emma+xml'],
+    ['env', 'application/x-envoy'],
+    ['eol', 'audio/vnd.digital-winds'],
+    ['eot', 'application/vnd.ms-fontobject'],
+    ['eps', 'application/postscript'],
+    ['epub', 'application/epub+zip'],
+    ['es', ['application/ecmascript', 'application/x-esrehber']],
+    ['es3', 'application/vnd.eszigno3+xml'],
+    ['esf', 'application/vnd.epson.esf'],
+    ['etx', 'text/x-setext'],
+    ['evy', ['application/envoy', 'application/x-envoy']],
+    ['exe', ['application/octet-stream', 'application/x-msdownload']],
+    ['exi', 'application/exi'],
+    ['ext', 'application/vnd.novadigm.ext'],
+    ['ez2', 'application/vnd.ezpix-album'],
+    ['ez3', 'application/vnd.ezpix-package'],
+    ['f', ['text/plain', 'text/x-fortran']],
+    ['f4v', 'video/x-f4v'],
+    ['f77', 'text/x-fortran'],
+    ['f90', ['text/plain', 'text/x-fortran']],
+    ['fbs', 'image/vnd.fastbidsheet'],
+    ['fcs', 'application/vnd.isac.fcs'],
+    ['fdf', 'application/vnd.fdf'],
+    ['fe_launch', 'application/vnd.denovo.fcselayout-link'],
+    ['fg5', 'application/vnd.fujitsu.oasysgp'],
+    ['fh', 'image/x-freehand'],
+    ['fif', ['application/fractals', 'image/fif']],
+    ['fig', 'application/x-xfig'],
+    ['fli', ['video/fli', 'video/x-fli']],
+    ['flo', ['image/florian', 'application/vnd.micrografx.flo']],
+    ['flr', 'x-world/x-vrml'],
+    ['flv', 'video/x-flv'],
+    ['flw', 'application/vnd.kde.kivio'],
+    ['flx', 'text/vnd.fmi.flexstor'],
+    ['fly', 'text/vnd.fly'],
+    ['fm', 'application/vnd.framemaker'],
+    ['fmf', 'video/x-atomic3d-feature'],
+    ['fnc', 'application/vnd.frogans.fnc'],
+    ['for', ['text/plain', 'text/x-fortran']],
+    ['fpx', ['image/vnd.fpx', 'image/vnd.net-fpx']],
+    ['frl', 'application/freeloader'],
+    ['fsc', 'application/vnd.fsc.weblaunch'],
+    ['fst', 'image/vnd.fst'],
+    ['ftc', 'application/vnd.fluxtime.clip'],
+    ['fti', 'application/vnd.anser-web-funds-transfer-initiation'],
+    ['funk', 'audio/make'],
+    ['fvt', 'video/vnd.fvt'],
+    ['fxp', 'application/vnd.adobe.fxp'],
+    ['fzs', 'application/vnd.fuzzysheet'],
+    ['g', 'text/plain'],
+    ['g2w', 'application/vnd.geoplan'],
+    ['g3', 'image/g3fax'],
+    ['g3w', 'application/vnd.geospace'],
+    ['gac', 'application/vnd.groove-account'],
+    ['gdl', 'model/vnd.gdl'],
+    ['geo', 'application/vnd.dynageo'],
+    ['geojson', 'application/geo+json'],
+    ['gex', 'application/vnd.geometry-explorer'],
+    ['ggb', 'application/vnd.geogebra.file'],
+    ['ggt', 'application/vnd.geogebra.tool'],
+    ['ghf', 'application/vnd.groove-help'],
+    ['gif', 'image/gif'],
+    ['gim', 'application/vnd.groove-identity-message'],
+    ['gl', ['video/gl', 'video/x-gl']],
+    ['gmx', 'application/vnd.gmx'],
+    ['gnumeric', 'application/x-gnumeric'],
+    ['gph', 'application/vnd.flographit'],
+    ['gqf', 'application/vnd.grafeq'],
+    ['gram', 'application/srgs'],
+    ['grv', 'application/vnd.groove-injector'],
+    ['grxml', 'application/srgs+xml'],
+    ['gsd', 'audio/x-gsm'],
+    ['gsf', 'application/x-font-ghostscript'],
+    ['gsm', 'audio/x-gsm'],
+    ['gsp', 'application/x-gsp'],
+    ['gss', 'application/x-gss'],
+    ['gtar', 'application/x-gtar'],
+    ['gtm', 'application/vnd.groove-tool-message'],
+    ['gtw', 'model/vnd.gtw'],
+    ['gv', 'text/vnd.graphviz'],
+    ['gxt', 'application/vnd.geonext'],
+    ['gz', ['application/x-gzip', 'application/x-compressed']],
+    ['gzip', ['multipart/x-gzip', 'application/x-gzip']],
+    ['h', ['text/plain', 'text/x-h']],
+    ['h261', 'video/h261'],
+    ['h263', 'video/h263'],
+    ['h264', 'video/h264'],
+    ['hal', 'application/vnd.hal+xml'],
+    ['hbci', 'application/vnd.hbci'],
+    ['hdf', 'application/x-hdf'],
+    ['help', 'application/x-helpfile'],
+    ['hgl', 'application/vnd.hp-hpgl'],
+    ['hh', ['text/plain', 'text/x-h']],
+    ['hlb', 'text/x-script'],
+    ['hlp', ['application/winhlp', 'application/hlp', 'application/x-helpfile', 'application/x-winhelp']],
+    ['hpg', 'application/vnd.hp-hpgl'],
+    ['hpgl', 'application/vnd.hp-hpgl'],
+    ['hpid', 'application/vnd.hp-hpid'],
+    ['hps', 'application/vnd.hp-hps'],
+    [
+        'hqx',
+        [
+            'application/mac-binhex40',
+            'application/binhex',
+            'application/binhex4',
+            'application/mac-binhex',
+            'application/x-binhex40',
+            'application/x-mac-binhex40'
+        ]
+    ],
+    ['hta', 'application/hta'],
+    ['htc', 'text/x-component'],
+    ['htke', 'application/vnd.kenameaapp'],
+    ['htm', 'text/html'],
+    ['html', 'text/html'],
+    ['htmls', 'text/html'],
+    ['htt', 'text/webviewhtml'],
+    ['htx', 'text/html'],
+    ['hvd', 'application/vnd.yamaha.hv-dic'],
+    ['hvp', 'application/vnd.yamaha.hv-voice'],
+    ['hvs', 'application/vnd.yamaha.hv-script'],
+    ['i2g', 'application/vnd.intergeo'],
+    ['icc', 'application/vnd.iccprofile'],
+    ['ice', 'x-conference/x-cooltalk'],
+    ['ico', 'image/x-icon'],
+    ['ics', 'text/calendar'],
+    ['idc', 'text/plain'],
+    ['ief', 'image/ief'],
+    ['iefs', 'image/ief'],
+    ['ifm', 'application/vnd.shana.informed.formdata'],
+    ['iges', ['application/iges', 'model/iges']],
+    ['igl', 'application/vnd.igloader'],
+    ['igm', 'application/vnd.insors.igm'],
+    ['igs', ['application/iges', 'model/iges']],
+    ['igx', 'application/vnd.micrografx.igx'],
+    ['iif', 'application/vnd.shana.informed.interchange'],
+    ['iii', 'application/x-iphone'],
+    ['ima', 'application/x-ima'],
+    ['imap', 'application/x-httpd-imap'],
+    ['imp', 'application/vnd.accpac.simply.imp'],
+    ['ims', 'application/vnd.ms-ims'],
+    ['inf', 'application/inf'],
+    ['ins', ['application/x-internet-signup', 'application/x-internett-signup']],
+    ['ip', 'application/x-ip2'],
+    ['ipfix', 'application/ipfix'],
+    ['ipk', 'application/vnd.shana.informed.package'],
+    ['irm', 'application/vnd.ibm.rights-management'],
+    ['irp', 'application/vnd.irepository.package+xml'],
+    ['isp', 'application/x-internet-signup'],
+    ['isu', 'video/x-isvideo'],
+    ['it', 'audio/it'],
+    ['itp', 'application/vnd.shana.informed.formtemplate'],
+    ['iv', 'application/x-inventor'],
+    ['ivp', 'application/vnd.immervision-ivp'],
+    ['ivr', 'i-world/i-vrml'],
+    ['ivu', 'application/vnd.immervision-ivu'],
+    ['ivy', 'application/x-livescreen'],
+    ['jad', 'text/vnd.sun.j2me.app-descriptor'],
+    ['jam', ['application/vnd.jam', 'audio/x-jam']],
+    ['jar', 'application/java-archive'],
+    ['jav', ['text/plain', 'text/x-java-source']],
+    ['java', ['text/plain', 'text/x-java-source,java', 'text/x-java-source']],
+    ['jcm', 'application/x-java-commerce'],
+    ['jfif', ['image/pipeg', 'image/jpeg', 'image/pjpeg']],
+    ['jfif-tbnl', 'image/jpeg'],
+    ['jisp', 'application/vnd.jisp'],
+    ['jlt', 'application/vnd.hp-jlyt'],
+    ['jnlp', 'application/x-java-jnlp-file'],
+    ['joda', 'application/vnd.joost.joda-archive'],
+    ['jpe', ['image/jpeg', 'image/pjpeg']],
+    ['jpeg', ['image/jpeg', 'image/pjpeg']],
+    ['jpg', ['image/jpeg', 'image/pjpeg']],
+    ['jpgv', 'video/jpeg'],
+    ['jpm', 'video/jpm'],
+    ['jps', 'image/x-jps'],
+    ['js', ['application/javascript', 'application/ecmascript', 'text/javascript', 'text/ecmascript', 'application/x-javascript']],
+    ['json', 'application/json'],
+    ['jut', 'image/jutvision'],
+    ['kar', ['audio/midi', 'music/x-karaoke']],
+    ['karbon', 'application/vnd.kde.karbon'],
+    ['kfo', 'application/vnd.kde.kformula'],
+    ['kia', 'application/vnd.kidspiration'],
+    ['kml', 'application/vnd.google-earth.kml+xml'],
+    ['kmz', 'application/vnd.google-earth.kmz'],
+    ['kne', 'application/vnd.kinar'],
+    ['kon', 'application/vnd.kde.kontour'],
+    ['kpr', 'application/vnd.kde.kpresenter'],
+    ['ksh', ['application/x-ksh', 'text/x-script.ksh']],
+    ['ksp', 'application/vnd.kde.kspread'],
+    ['ktx', 'image/ktx'],
+    ['ktz', 'application/vnd.kahootz'],
+    ['kwd', 'application/vnd.kde.kword'],
+    ['la', ['audio/nspaudio', 'audio/x-nspaudio']],
+    ['lam', 'audio/x-liveaudio'],
+    ['lasxml', 'application/vnd.las.las+xml'],
+    ['latex', 'application/x-latex'],
+    ['lbd', 'application/vnd.llamagraphics.life-balance.desktop'],
+    ['lbe', 'application/vnd.llamagraphics.life-balance.exchange+xml'],
+    ['les', 'application/vnd.hhe.lesson-player'],
+    ['lha', ['application/octet-stream', 'application/lha', 'application/x-lha']],
+    ['lhx', 'application/octet-stream'],
+    ['link66', 'application/vnd.route66.link66+xml'],
+    ['list', 'text/plain'],
+    ['lma', ['audio/nspaudio', 'audio/x-nspaudio']],
+    ['log', 'text/plain'],
+    ['lrm', 'application/vnd.ms-lrm'],
+    ['lsf', 'video/x-la-asf'],
+    ['lsp', ['application/x-lisp', 'text/x-script.lisp']],
+    ['lst', 'text/plain'],
+    ['lsx', ['video/x-la-asf', 'text/x-la-asf']],
+    ['ltf', 'application/vnd.frogans.ltf'],
+    ['ltx', 'application/x-latex'],
+    ['lvp', 'audio/vnd.lucent.voice'],
+    ['lwp', 'application/vnd.lotus-wordpro'],
+    ['lzh', ['application/octet-stream', 'application/x-lzh']],
+    ['lzx', ['application/lzx', 'application/octet-stream', 'application/x-lzx']],
+    ['m', ['text/plain', 'text/x-m']],
+    ['m13', 'application/x-msmediaview'],
+    ['m14', 'application/x-msmediaview'],
+    ['m1v', 'video/mpeg'],
+    ['m21', 'application/mp21'],
+    ['m2a', 'audio/mpeg'],
+    ['m2v', 'video/mpeg'],
+    ['m3u', ['audio/x-mpegurl', 'audio/x-mpequrl']],
+    ['m3u8', 'application/vnd.apple.mpegurl'],
+    ['m4v', 'video/x-m4v'],
+    ['ma', 'application/mathematica'],
+    ['mads', 'application/mads+xml'],
+    ['mag', 'application/vnd.ecowin.chart'],
+    ['man', 'application/x-troff-man'],
+    ['map', 'application/x-navimap'],
+    ['mar', 'text/plain'],
+    ['mathml', 'application/mathml+xml'],
+    ['mbd', 'application/mbedlet'],
+    ['mbk', 'application/vnd.mobius.mbk'],
+    ['mbox', 'application/mbox'],
+    ['mc$', 'application/x-magic-cap-package-1.0'],
+    ['mc1', 'application/vnd.medcalcdata'],
+    ['mcd', ['application/mcad', 'application/vnd.mcd', 'application/x-mathcad']],
+    ['mcf', ['image/vasa', 'text/mcf']],
+    ['mcp', 'application/netmc'],
+    ['mcurl', 'text/vnd.curl.mcurl'],
+    ['mdb', 'application/x-msaccess'],
+    ['mdi', 'image/vnd.ms-modi'],
+    ['me', 'application/x-troff-me'],
+    ['meta4', 'application/metalink4+xml'],
+    ['mets', 'application/mets+xml'],
+    ['mfm', 'application/vnd.mfmp'],
+    ['mgp', 'application/vnd.osgeo.mapguide.package'],
+    ['mgz', 'application/vnd.proteus.magazine'],
+    ['mht', 'message/rfc822'],
+    ['mhtml', 'message/rfc822'],
+    ['mid', ['audio/mid', 'audio/midi', 'music/crescendo', 'x-music/x-midi', 'audio/x-midi', 'application/x-midi', 'audio/x-mid']],
+    ['midi', ['audio/midi', 'music/crescendo', 'x-music/x-midi', 'audio/x-midi', 'application/x-midi', 'audio/x-mid']],
+    ['mif', ['application/vnd.mif', 'application/x-mif', 'application/x-frame']],
+    ['mime', ['message/rfc822', 'www/mime']],
+    ['mj2', 'video/mj2'],
+    ['mjf', 'audio/x-vnd.audioexplosion.mjuicemediafile'],
+    ['mjpg', 'video/x-motion-jpeg'],
+    ['mlp', 'application/vnd.dolby.mlp'],
+    ['mm', ['application/base64', 'application/x-meme']],
+    ['mmd', 'application/vnd.chipnuts.karaoke-mmd'],
+    ['mme', 'application/base64'],
+    ['mmf', 'application/vnd.smaf'],
+    ['mmr', 'image/vnd.fujixerox.edmics-mmr'],
+    ['mny', 'application/x-msmoney'],
+    ['mod', ['audio/mod', 'audio/x-mod']],
+    ['mods', 'application/mods+xml'],
+    ['moov', 'video/quicktime'],
+    ['mov', 'video/quicktime'],
+    ['movie', 'video/x-sgi-movie'],
+    ['mp2', ['video/mpeg', 'audio/mpeg', 'video/x-mpeg', 'audio/x-mpeg', 'video/x-mpeq2a']],
+    ['mp3', ['audio/mpeg', 'audio/mpeg3', 'video/mpeg', 'audio/x-mpeg-3', 'video/x-mpeg']],
+    ['mp4', ['video/mp4', 'application/mp4']],
+    ['mp4a', 'audio/mp4'],
+    ['mpa', ['video/mpeg', 'audio/mpeg']],
+    ['mpc', ['application/vnd.mophun.certificate', 'application/x-project']],
+    ['mpe', 'video/mpeg'],
+    ['mpeg', 'video/mpeg'],
+    ['mpg', ['video/mpeg', 'audio/mpeg']],
+    ['mpga', 'audio/mpeg'],
+    ['mpkg', 'application/vnd.apple.installer+xml'],
+    ['mpm', 'application/vnd.blueice.multipass'],
+    ['mpn', 'application/vnd.mophun.application'],
+    ['mpp', 'application/vnd.ms-project'],
+    ['mpt', 'application/x-project'],
+    ['mpv', 'application/x-project'],
+    ['mpv2', 'video/mpeg'],
+    ['mpx', 'application/x-project'],
+    ['mpy', 'application/vnd.ibm.minipay'],
+    ['mqy', 'application/vnd.mobius.mqy'],
+    ['mrc', 'application/marc'],
+    ['mrcx', 'application/marcxml+xml'],
+    ['ms', 'application/x-troff-ms'],
+    ['mscml', 'application/mediaservercontrol+xml'],
+    ['mseq', 'application/vnd.mseq'],
+    ['msf', 'application/vnd.epson.msf'],
+    ['msg', 'application/vnd.ms-outlook'],
+    ['msh', 'model/mesh'],
+    ['msl', 'application/vnd.mobius.msl'],
+    ['msty', 'application/vnd.muvee.style'],
+    ['mts', 'model/vnd.mts'],
+    ['mus', 'application/vnd.musician'],
+    ['musicxml', 'application/vnd.recordare.musicxml+xml'],
+    ['mv', 'video/x-sgi-movie'],
+    ['mvb', 'application/x-msmediaview'],
+    ['mwf', 'application/vnd.mfer'],
+    ['mxf', 'application/mxf'],
+    ['mxl', 'application/vnd.recordare.musicxml'],
+    ['mxml', 'application/xv+xml'],
+    ['mxs', 'application/vnd.triscape.mxs'],
+    ['mxu', 'video/vnd.mpegurl'],
+    ['my', 'audio/make'],
+    ['mzz', 'application/x-vnd.audioexplosion.mzz'],
+    ['n-gage', 'application/vnd.nokia.n-gage.symbian.install'],
+    ['n3', 'text/n3'],
+    ['nap', 'image/naplps'],
+    ['naplps', 'image/naplps'],
+    ['nbp', 'application/vnd.wolfram.player'],
+    ['nc', 'application/x-netcdf'],
+    ['ncm', 'application/vnd.nokia.configuration-message'],
+    ['ncx', 'application/x-dtbncx+xml'],
+    ['ngdat', 'application/vnd.nokia.n-gage.data'],
+    ['nif', 'image/x-niff'],
+    ['niff', 'image/x-niff'],
+    ['nix', 'application/x-mix-transfer'],
+    ['nlu', 'application/vnd.neurolanguage.nlu'],
+    ['nml', 'application/vnd.enliven'],
+    ['nnd', 'application/vnd.noblenet-directory'],
+    ['nns', 'application/vnd.noblenet-sealer'],
+    ['nnw', 'application/vnd.noblenet-web'],
+    ['npx', 'image/vnd.net-fpx'],
+    ['nsc', 'application/x-conference'],
+    ['nsf', 'application/vnd.lotus-notes'],
+    ['nvd', 'application/x-navidoc'],
+    ['nws', 'message/rfc822'],
+    ['o', 'application/octet-stream'],
+    ['oa2', 'application/vnd.fujitsu.oasys2'],
+    ['oa3', 'application/vnd.fujitsu.oasys3'],
+    ['oas', 'application/vnd.fujitsu.oasys'],
+    ['obd', 'application/x-msbinder'],
+    ['oda', 'application/oda'],
+    ['odb', 'application/vnd.oasis.opendocument.database'],
+    ['odc', 'application/vnd.oasis.opendocument.chart'],
+    ['odf', 'application/vnd.oasis.opendocument.formula'],
+    ['odft', 'application/vnd.oasis.opendocument.formula-template'],
+    ['odg', 'application/vnd.oasis.opendocument.graphics'],
+    ['odi', 'application/vnd.oasis.opendocument.image'],
+    ['odm', 'application/vnd.oasis.opendocument.text-master'],
+    ['odp', 'application/vnd.oasis.opendocument.presentation'],
+    ['ods', 'application/vnd.oasis.opendocument.spreadsheet'],
+    ['odt', 'application/vnd.oasis.opendocument.text'],
+    ['oga', 'audio/ogg'],
+    ['ogv', 'video/ogg'],
+    ['ogx', 'application/ogg'],
+    ['omc', 'application/x-omc'],
+    ['omcd', 'application/x-omcdatamaker'],
+    ['omcr', 'application/x-omcregerator'],
+    ['onetoc', 'application/onenote'],
+    ['opf', 'application/oebps-package+xml'],
+    ['org', 'application/vnd.lotus-organizer'],
+    ['osf', 'application/vnd.yamaha.openscoreformat'],
+    ['osfpvg', 'application/vnd.yamaha.openscoreformat.osfpvg+xml'],
+    ['otc', 'application/vnd.oasis.opendocument.chart-template'],
+    ['otf', 'application/x-font-otf'],
+    ['otg', 'application/vnd.oasis.opendocument.graphics-template'],
+    ['oth', 'application/vnd.oasis.opendocument.text-web'],
+    ['oti', 'application/vnd.oasis.opendocument.image-template'],
+    ['otp', 'application/vnd.oasis.opendocument.presentation-template'],
+    ['ots', 'application/vnd.oasis.opendocument.spreadsheet-template'],
+    ['ott', 'application/vnd.oasis.opendocument.text-template'],
+    ['oxt', 'application/vnd.openofficeorg.extension'],
+    ['p', 'text/x-pascal'],
+    ['p10', ['application/pkcs10', 'application/x-pkcs10']],
+    ['p12', ['application/pkcs-12', 'application/x-pkcs12']],
+    ['p7a', 'application/x-pkcs7-signature'],
+    ['p7b', 'application/x-pkcs7-certificates'],
+    ['p7c', ['application/pkcs7-mime', 'application/x-pkcs7-mime']],
+    ['p7m', ['application/pkcs7-mime', 'application/x-pkcs7-mime']],
+    ['p7r', 'application/x-pkcs7-certreqresp'],
+    ['p7s', ['application/pkcs7-signature', 'application/x-pkcs7-signature']],
+    ['p8', 'application/pkcs8'],
+    ['par', 'text/plain-bas'],
+    ['part', 'application/pro_eng'],
+    ['pas', 'text/pascal'],
+    ['paw', 'application/vnd.pawaafile'],
+    ['pbd', 'application/vnd.powerbuilder6'],
+    ['pbm', 'image/x-portable-bitmap'],
+    ['pcf', 'application/x-font-pcf'],
+    ['pcl', ['application/vnd.hp-pcl', 'application/x-pcl']],
+    ['pclxl', 'application/vnd.hp-pclxl'],
+    ['pct', 'image/x-pict'],
+    ['pcurl', 'application/vnd.curl.pcurl'],
+    ['pcx', 'image/x-pcx'],
+    ['pdb', ['application/vnd.palm', 'chemical/x-pdb']],
+    ['pdf', 'application/pdf'],
+    ['pfa', 'application/x-font-type1'],
+    ['pfr', 'application/font-tdpfr'],
+    ['pfunk', ['audio/make', 'audio/make.my.funk']],
+    ['pfx', 'application/x-pkcs12'],
+    ['pgm', ['image/x-portable-graymap', 'image/x-portable-greymap']],
+    ['pgn', 'application/x-chess-pgn'],
+    ['pgp', 'application/pgp-signature'],
+    ['pic', ['image/pict', 'image/x-pict']],
+    ['pict', 'image/pict'],
+    ['pkg', 'application/x-newton-compatible-pkg'],
+    ['pki', 'application/pkixcmp'],
+    ['pkipath', 'application/pkix-pkipath'],
+    ['pko', ['application/ynd.ms-pkipko', 'application/vnd.ms-pki.pko']],
+    ['pl', ['text/plain', 'text/x-script.perl']],
+    ['plb', 'application/vnd.3gpp.pic-bw-large'],
+    ['plc', 'application/vnd.mobius.plc'],
+    ['plf', 'application/vnd.pocketlearn'],
+    ['pls', 'application/pls+xml'],
+    ['plx', 'application/x-pixclscript'],
+    ['pm', ['text/x-script.perl-module', 'image/x-xpixmap']],
+    ['pm4', 'application/x-pagemaker'],
+    ['pm5', 'application/x-pagemaker'],
+    ['pma', 'application/x-perfmon'],
+    ['pmc', 'application/x-perfmon'],
+    ['pml', ['application/vnd.ctc-posml', 'application/x-perfmon']],
+    ['pmr', 'application/x-perfmon'],
+    ['pmw', 'application/x-perfmon'],
+    ['png', 'image/png'],
+    ['pnm', ['application/x-portable-anymap', 'image/x-portable-anymap']],
+    ['portpkg', 'application/vnd.macports.portpkg'],
+    ['pot', ['application/vnd.ms-powerpoint', 'application/mspowerpoint']],
+    ['potm', 'application/vnd.ms-powerpoint.template.macroenabled.12'],
+    ['potx', 'application/vnd.openxmlformats-officedocument.presentationml.template'],
+    ['pov', 'model/x-pov'],
+    ['ppa', 'application/vnd.ms-powerpoint'],
+    ['ppam', 'application/vnd.ms-powerpoint.addin.macroenabled.12'],
+    ['ppd', 'application/vnd.cups-ppd'],
+    ['ppm', 'image/x-portable-pixmap'],
+    ['pps', ['application/vnd.ms-powerpoint', 'application/mspowerpoint']],
+    ['ppsm', 'application/vnd.ms-powerpoint.slideshow.macroenabled.12'],
+    ['ppsx', 'application/vnd.openxmlformats-officedocument.presentationml.slideshow'],
+    ['ppt', ['application/vnd.ms-powerpoint', 'application/mspowerpoint', 'application/powerpoint', 'application/x-mspowerpoint']],
+    ['pptm', 'application/vnd.ms-powerpoint.presentation.macroenabled.12'],
+    ['pptx', 'application/vnd.openxmlformats-officedocument.presentationml.presentation'],
+    ['ppz', 'application/mspowerpoint'],
+    ['prc', 'application/x-mobipocket-ebook'],
+    ['pre', ['application/vnd.lotus-freelance', 'application/x-freelance']],
+    ['prf', 'application/pics-rules'],
+    ['prt', 'application/pro_eng'],
+    ['ps', 'application/postscript'],
+    ['psb', 'application/vnd.3gpp.pic-bw-small'],
+    ['psd', ['application/octet-stream', 'image/vnd.adobe.photoshop']],
+    ['psf', 'application/x-font-linux-psf'],
+    ['pskcxml', 'application/pskc+xml'],
+    ['ptid', 'application/vnd.pvi.ptid1'],
+    ['pub', 'application/x-mspublisher'],
+    ['pvb', 'application/vnd.3gpp.pic-bw-var'],
+    ['pvu', 'paleovu/x-pv'],
+    ['pwn', 'application/vnd.3m.post-it-notes'],
+    ['pwz', 'application/vnd.ms-powerpoint'],
+    ['py', 'text/x-script.phyton'],
+    ['pya', 'audio/vnd.ms-playready.media.pya'],
+    ['pyc', 'application/x-bytecode.python'],
+    ['pyv', 'video/vnd.ms-playready.media.pyv'],
+    ['qam', 'application/vnd.epson.quickanime'],
+    ['qbo', 'application/vnd.intu.qbo'],
+    ['qcp', 'audio/vnd.qcelp'],
+    ['qd3', 'x-world/x-3dmf'],
+    ['qd3d', 'x-world/x-3dmf'],
+    ['qfx', 'application/vnd.intu.qfx'],
+    ['qif', 'image/x-quicktime'],
+    ['qps', 'application/vnd.publishare-delta-tree'],
+    ['qt', 'video/quicktime'],
+    ['qtc', 'video/x-qtc'],
+    ['qti', 'image/x-quicktime'],
+    ['qtif', 'image/x-quicktime'],
+    ['qxd', 'application/vnd.quark.quarkxpress'],
+    ['ra', ['audio/x-realaudio', 'audio/x-pn-realaudio', 'audio/x-pn-realaudio-plugin']],
+    ['ram', 'audio/x-pn-realaudio'],
+    ['rar', 'application/x-rar-compressed'],
+    ['ras', ['image/cmu-raster', 'application/x-cmu-raster', 'image/x-cmu-raster']],
+    ['rast', 'image/cmu-raster'],
+    ['rcprofile', 'application/vnd.ipunplugged.rcprofile'],
+    ['rdf', 'application/rdf+xml'],
+    ['rdz', 'application/vnd.data-vision.rdz'],
+    ['rep', 'application/vnd.businessobjects'],
+    ['res', 'application/x-dtbresource+xml'],
+    ['rexx', 'text/x-script.rexx'],
+    ['rf', 'image/vnd.rn-realflash'],
+    ['rgb', 'image/x-rgb'],
+    ['rif', 'application/reginfo+xml'],
+    ['rip', 'audio/vnd.rip'],
+    ['rl', 'application/resource-lists+xml'],
+    ['rlc', 'image/vnd.fujixerox.edmics-rlc'],
+    ['rld', 'application/resource-lists-diff+xml'],
+    ['rm', ['application/vnd.rn-realmedia', 'audio/x-pn-realaudio']],
+    ['rmi', 'audio/mid'],
+    ['rmm', 'audio/x-pn-realaudio'],
+    ['rmp', ['audio/x-pn-realaudio-plugin', 'audio/x-pn-realaudio']],
+    ['rms', 'application/vnd.jcp.javame.midlet-rms'],
+    ['rnc', 'application/relax-ng-compact-syntax'],
+    ['rng', ['application/ringing-tones', 'application/vnd.nokia.ringing-tone']],
+    ['rnx', 'application/vnd.rn-realplayer'],
+    ['roff', 'application/x-troff'],
+    ['rp', 'image/vnd.rn-realpix'],
+    ['rp9', 'application/vnd.cloanto.rp9'],
+    ['rpm', 'audio/x-pn-realaudio-plugin'],
+    ['rpss', 'application/vnd.nokia.radio-presets'],
+    ['rpst', 'application/vnd.nokia.radio-preset'],
+    ['rq', 'application/sparql-query'],
+    ['rs', 'application/rls-services+xml'],
+    ['rsd', 'application/rsd+xml'],
+    ['rt', ['text/richtext', 'text/vnd.rn-realtext']],
+    ['rtf', ['application/rtf', 'text/richtext', 'application/x-rtf']],
+    ['rtx', ['text/richtext', 'application/rtf']],
+    ['rv', 'video/vnd.rn-realvideo'],
+    ['s', 'text/x-asm'],
+    ['s3m', 'audio/s3m'],
+    ['saf', 'application/vnd.yamaha.smaf-audio'],
+    ['saveme', 'application/octet-stream'],
+    ['sbk', 'application/x-tbook'],
+    ['sbml', 'application/sbml+xml'],
+    ['sc', 'application/vnd.ibm.secure-container'],
+    ['scd', 'application/x-msschedule'],
+    ['scm', ['application/vnd.lotus-screencam', 'video/x-scm', 'text/x-script.guile', 'application/x-lotusscreencam', 'text/x-script.scheme']],
+    ['scq', 'application/scvp-cv-request'],
+    ['scs', 'application/scvp-cv-response'],
+    ['sct', 'text/scriptlet'],
+    ['scurl', 'text/vnd.curl.scurl'],
+    ['sda', 'application/vnd.stardivision.draw'],
+    ['sdc', 'application/vnd.stardivision.calc'],
+    ['sdd', 'application/vnd.stardivision.impress'],
+    ['sdkm', 'application/vnd.solent.sdkm+xml'],
+    ['sdml', 'text/plain'],
+    ['sdp', ['application/sdp', 'application/x-sdp']],
+    ['sdr', 'application/sounder'],
+    ['sdw', 'application/vnd.stardivision.writer'],
+    ['sea', ['application/sea', 'application/x-sea']],
+    ['see', 'application/vnd.seemail'],
+    ['seed', 'application/vnd.fdsn.seed'],
+    ['sema', 'application/vnd.sema'],
+    ['semd', 'application/vnd.semd'],
+    ['semf', 'application/vnd.semf'],
+    ['ser', 'application/java-serialized-object'],
+    ['set', 'application/set'],
+    ['setpay', 'application/set-payment-initiation'],
+    ['setreg', 'application/set-registration-initiation'],
+    ['sfd-hdstx', 'application/vnd.hydrostatix.sof-data'],
+    ['sfs', 'application/vnd.spotfire.sfs'],
+    ['sgl', 'application/vnd.stardivision.writer-global'],
+    ['sgm', ['text/sgml', 'text/x-sgml']],
+    ['sgml', ['text/sgml', 'text/x-sgml']],
+    ['sh', ['application/x-shar', 'application/x-bsh', 'application/x-sh', 'text/x-script.sh']],
+    ['shar', ['application/x-bsh', 'application/x-shar']],
+    ['shf', 'application/shf+xml'],
+    ['shtml', ['text/html', 'text/x-server-parsed-html']],
+    ['sid', 'audio/x-psid'],
+    ['sis', 'application/vnd.symbian.install'],
+    ['sit', ['application/x-stuffit', 'application/x-sit']],
+    ['sitx', 'application/x-stuffitx'],
+    ['skd', 'application/x-koan'],
+    ['skm', 'application/x-koan'],
+    ['skp', ['application/vnd.koan', 'application/x-koan']],
+    ['skt', 'application/x-koan'],
+    ['sl', 'application/x-seelogo'],
+    ['sldm', 'application/vnd.ms-powerpoint.slide.macroenabled.12'],
+    ['sldx', 'application/vnd.openxmlformats-officedocument.presentationml.slide'],
+    ['slt', 'application/vnd.epson.salt'],
+    ['sm', 'application/vnd.stepmania.stepchart'],
+    ['smf', 'application/vnd.stardivision.math'],
+    ['smi', ['application/smil', 'application/smil+xml']],
+    ['smil', 'application/smil'],
+    ['snd', ['audio/basic', 'audio/x-adpcm']],
+    ['snf', 'application/x-font-snf'],
+    ['sol', 'application/solids'],
+    ['spc', ['text/x-speech', 'application/x-pkcs7-certificates']],
+    ['spf', 'application/vnd.yamaha.smaf-phrase'],
+    ['spl', ['application/futuresplash', 'application/x-futuresplash']],
+    ['spot', 'text/vnd.in3d.spot'],
+    ['spp', 'application/scvp-vp-response'],
+    ['spq', 'application/scvp-vp-request'],
+    ['spr', 'application/x-sprite'],
+    ['sprite', 'application/x-sprite'],
+    ['src', 'application/x-wais-source'],
+    ['sru', 'application/sru+xml'],
+    ['srx', 'application/sparql-results+xml'],
+    ['sse', 'application/vnd.kodak-descriptor'],
+    ['ssf', 'application/vnd.epson.ssf'],
+    ['ssi', 'text/x-server-parsed-html'],
+    ['ssm', 'application/streamingmedia'],
+    ['ssml', 'application/ssml+xml'],
+    ['sst', ['application/vnd.ms-pkicertstore', 'application/vnd.ms-pki.certstore']],
+    ['st', 'application/vnd.sailingtracker.track'],
+    ['stc', 'application/vnd.sun.xml.calc.template'],
+    ['std', 'application/vnd.sun.xml.draw.template'],
+    ['step', 'application/step'],
+    ['stf', 'application/vnd.wt.stf'],
+    ['sti', 'application/vnd.sun.xml.impress.template'],
+    ['stk', 'application/hyperstudio'],
+    ['stl', ['application/vnd.ms-pkistl', 'application/sla', 'application/vnd.ms-pki.stl', 'application/x-navistyle']],
+    ['stm', 'text/html'],
+    ['stp', 'application/step'],
+    ['str', 'application/vnd.pg.format'],
+    ['stw', 'application/vnd.sun.xml.writer.template'],
+    ['sub', 'image/vnd.dvb.subtitle'],
+    ['sus', 'application/vnd.sus-calendar'],
+    ['sv4cpio', 'application/x-sv4cpio'],
+    ['sv4crc', 'application/x-sv4crc'],
+    ['svc', 'application/vnd.dvb.service'],
+    ['svd', 'application/vnd.svd'],
+    ['svf', ['image/vnd.dwg', 'image/x-dwg']],
+    ['svg', 'image/svg+xml'],
+    ['svr', ['x-world/x-svr', 'application/x-world']],
+    ['swf', 'application/x-shockwave-flash'],
+    ['swi', 'application/vnd.aristanetworks.swi'],
+    ['sxc', 'application/vnd.sun.xml.calc'],
+    ['sxd', 'application/vnd.sun.xml.draw'],
+    ['sxg', 'application/vnd.sun.xml.writer.global'],
+    ['sxi', 'application/vnd.sun.xml.impress'],
+    ['sxm', 'application/vnd.sun.xml.math'],
+    ['sxw', 'application/vnd.sun.xml.writer'],
+    ['t', ['text/troff', 'application/x-troff']],
+    ['talk', 'text/x-speech'],
+    ['tao', 'application/vnd.tao.intent-module-archive'],
+    ['tar', 'application/x-tar'],
+    ['tbk', ['application/toolbook', 'application/x-tbook']],
+    ['tcap', 'application/vnd.3gpp2.tcap'],
+    ['tcl', ['text/x-script.tcl', 'application/x-tcl']],
+    ['tcsh', 'text/x-script.tcsh'],
+    ['teacher', 'application/vnd.smart.teacher'],
+    ['tei', 'application/tei+xml'],
+    ['tex', 'application/x-tex'],
+    ['texi', 'application/x-texinfo'],
+    ['texinfo', 'application/x-texinfo'],
+    ['text', ['application/plain', 'text/plain']],
+    ['tfi', 'application/thraud+xml'],
+    ['tfm', 'application/x-tex-tfm'],
+    ['tgz', ['application/gnutar', 'application/x-compressed']],
+    ['thmx', 'application/vnd.ms-officetheme'],
+    ['tif', ['image/tiff', 'image/x-tiff']],
+    ['tiff', ['image/tiff', 'image/x-tiff']],
+    ['tmo', 'application/vnd.tmobile-livetv'],
+    ['torrent', 'application/x-bittorrent'],
+    ['tpl', 'application/vnd.groove-tool-template'],
+    ['tpt', 'application/vnd.trid.tpt'],
+    ['tr', 'application/x-troff'],
+    ['tra', 'application/vnd.trueapp'],
+    ['trm', 'application/x-msterminal'],
+    ['tsd', 'application/timestamped-data'],
+    ['tsi', 'audio/tsp-audio'],
+    ['tsp', ['application/dsptype', 'audio/tsplayer']],
+    ['tsv', 'text/tab-separated-values'],
+    ['ttf', 'application/x-font-ttf'],
+    ['ttl', 'text/turtle'],
+    ['turbot', 'image/florian'],
+    ['twd', 'application/vnd.simtech-mindmapper'],
+    ['txd', 'application/vnd.genomatix.tuxedo'],
+    ['txf', 'application/vnd.mobius.txf'],
+    ['txt', 'text/plain'],
+    ['ufd', 'application/vnd.ufdl'],
+    ['uil', 'text/x-uil'],
+    ['uls', 'text/iuls'],
+    ['umj', 'application/vnd.umajin'],
+    ['uni', 'text/uri-list'],
+    ['unis', 'text/uri-list'],
+    ['unityweb', 'application/vnd.unity'],
+    ['unv', 'application/i-deas'],
+    ['uoml', 'application/vnd.uoml+xml'],
+    ['uri', 'text/uri-list'],
+    ['uris', 'text/uri-list'],
+    ['ustar', ['application/x-ustar', 'multipart/x-ustar']],
+    ['utz', 'application/vnd.uiq.theme'],
+    ['uu', ['application/octet-stream', 'text/x-uuencode']],
+    ['uue', 'text/x-uuencode'],
+    ['uva', 'audio/vnd.dece.audio'],
+    ['uvh', 'video/vnd.dece.hd'],
+    ['uvi', 'image/vnd.dece.graphic'],
+    ['uvm', 'video/vnd.dece.mobile'],
+    ['uvp', 'video/vnd.dece.pd'],
+    ['uvs', 'video/vnd.dece.sd'],
+    ['uvu', 'video/vnd.uvvu.mp4'],
+    ['uvv', 'video/vnd.dece.video'],
+    ['vcd', 'application/x-cdlink'],
+    ['vcf', 'text/x-vcard'],
+    ['vcg', 'application/vnd.groove-vcard'],
+    ['vcs', 'text/x-vcalendar'],
+    ['vcx', 'application/vnd.vcx'],
+    ['vda', 'application/vda'],
+    ['vdo', 'video/vdo'],
+    ['vew', 'application/groupwise'],
+    ['vis', 'application/vnd.visionary'],
+    ['viv', ['video/vivo', 'video/vnd.vivo']],
+    ['vivo', ['video/vivo', 'video/vnd.vivo']],
+    ['vmd', 'application/vocaltec-media-desc'],
+    ['vmf', 'application/vocaltec-media-file'],
+    ['voc', ['audio/voc', 'audio/x-voc']],
+    ['vos', 'video/vosaic'],
+    ['vox', 'audio/voxware'],
+    ['vqe', 'audio/x-twinvq-plugin'],
+    ['vqf', 'audio/x-twinvq'],
+    ['vql', 'audio/x-twinvq-plugin'],
+    ['vrml', ['model/vrml', 'x-world/x-vrml', 'application/x-vrml']],
+    ['vrt', 'x-world/x-vrt'],
+    ['vsd', ['application/vnd.visio', 'application/x-visio']],
+    ['vsf', 'application/vnd.vsf'],
+    ['vst', 'application/x-visio'],
+    ['vsw', 'application/x-visio'],
+    ['vtu', 'model/vnd.vtu'],
+    ['vxml', 'application/voicexml+xml'],
+    ['w60', 'application/wordperfect6.0'],
+    ['w61', 'application/wordperfect6.1'],
+    ['w6w', 'application/msword'],
+    ['wad', 'application/x-doom'],
+    ['wav', ['audio/wav', 'audio/x-wav']],
+    ['wax', 'audio/x-ms-wax'],
+    ['wb1', 'application/x-qpro'],
+    ['wbmp', 'image/vnd.wap.wbmp'],
+    ['wbs', 'application/vnd.criticaltools.wbs+xml'],
+    ['wbxml', 'application/vnd.wap.wbxml'],
+    ['wcm', 'application/vnd.ms-works'],
+    ['wdb', 'application/vnd.ms-works'],
+    ['web', 'application/vnd.xara'],
+    ['weba', 'audio/webm'],
+    ['webm', 'video/webm'],
+    ['webp', 'image/webp'],
+    ['wg', 'application/vnd.pmi.widget'],
+    ['wgt', 'application/widget'],
+    ['wiz', 'application/msword'],
+    ['wk1', 'application/x-123'],
+    ['wks', 'application/vnd.ms-works'],
+    ['wm', 'video/x-ms-wm'],
+    ['wma', 'audio/x-ms-wma'],
+    ['wmd', 'application/x-ms-wmd'],
+    ['wmf', ['windows/metafile', 'application/x-msmetafile']],
+    ['wml', 'text/vnd.wap.wml'],
+    ['wmlc', 'application/vnd.wap.wmlc'],
+    ['wmls', 'text/vnd.wap.wmlscript'],
+    ['wmlsc', 'application/vnd.wap.wmlscriptc'],
+    ['wmv', 'video/x-ms-wmv'],
+    ['wmx', 'video/x-ms-wmx'],
+    ['wmz', 'application/x-ms-wmz'],
+    ['woff', 'application/x-font-woff'],
+    ['word', 'application/msword'],
+    ['wp', 'application/wordperfect'],
+    ['wp5', ['application/wordperfect', 'application/wordperfect6.0']],
+    ['wp6', 'application/wordperfect'],
+    ['wpd', ['application/wordperfect', 'application/vnd.wordperfect', 'application/x-wpwin']],
+    ['wpl', 'application/vnd.ms-wpl'],
+    ['wps', 'application/vnd.ms-works'],
+    ['wq1', 'application/x-lotus'],
+    ['wqd', 'application/vnd.wqd'],
+    ['wri', ['application/mswrite', 'application/x-wri', 'application/x-mswrite']],
+    ['wrl', ['model/vrml', 'x-world/x-vrml', 'application/x-world']],
+    ['wrz', ['model/vrml', 'x-world/x-vrml']],
+    ['wsc', 'text/scriplet'],
+    ['wsdl', 'application/wsdl+xml'],
+    ['wspolicy', 'application/wspolicy+xml'],
+    ['wsrc', 'application/x-wais-source'],
+    ['wtb', 'application/vnd.webturbo'],
+    ['wtk', 'application/x-wintalk'],
+    ['wvx', 'video/x-ms-wvx'],
+    ['x-png', 'image/png'],
+    ['x3d', 'application/vnd.hzn-3d-crossword'],
+    ['xaf', 'x-world/x-vrml'],
+    ['xap', 'application/x-silverlight-app'],
+    ['xar', 'application/vnd.xara'],
+    ['xbap', 'application/x-ms-xbap'],
+    ['xbd', 'application/vnd.fujixerox.docuworks.binder'],
+    ['xbm', ['image/xbm', 'image/x-xbm', 'image/x-xbitmap']],
+    ['xdf', 'application/xcap-diff+xml'],
+    ['xdm', 'application/vnd.syncml.dm+xml'],
+    ['xdp', 'application/vnd.adobe.xdp+xml'],
+    ['xdr', 'video/x-amt-demorun'],
+    ['xdssc', 'application/dssc+xml'],
+    ['xdw', 'application/vnd.fujixerox.docuworks'],
+    ['xenc', 'application/xenc+xml'],
+    ['xer', 'application/patch-ops-error+xml'],
+    ['xfdf', 'application/vnd.adobe.xfdf'],
+    ['xfdl', 'application/vnd.xfdl'],
+    ['xgz', 'xgl/drawing'],
+    ['xhtml', 'application/xhtml+xml'],
+    ['xif', 'image/vnd.xiff'],
+    ['xl', 'application/excel'],
+    ['xla', ['application/vnd.ms-excel', 'application/excel', 'application/x-msexcel', 'application/x-excel']],
+    ['xlam', 'application/vnd.ms-excel.addin.macroenabled.12'],
+    ['xlb', ['application/excel', 'application/vnd.ms-excel', 'application/x-excel']],
+    ['xlc', ['application/vnd.ms-excel', 'application/excel', 'application/x-excel']],
+    ['xld', ['application/excel', 'application/x-excel']],
+    ['xlk', ['application/excel', 'application/x-excel']],
+    ['xll', ['application/excel', 'application/vnd.ms-excel', 'application/x-excel']],
+    ['xlm', ['application/vnd.ms-excel', 'application/excel', 'application/x-excel']],
+    ['xls', ['application/vnd.ms-excel', 'application/excel', 'application/x-msexcel', 'application/x-excel']],
+    ['xlsb', 'application/vnd.ms-excel.sheet.binary.macroenabled.12'],
+    ['xlsm', 'application/vnd.ms-excel.sheet.macroenabled.12'],
+    ['xlsx', 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'],
+    ['xlt', ['application/vnd.ms-excel', 'application/excel', 'application/x-excel']],
+    ['xltm', 'application/vnd.ms-excel.template.macroenabled.12'],
+    ['xltx', 'application/vnd.openxmlformats-officedocument.spreadsheetml.template'],
+    ['xlv', ['application/excel', 'application/x-excel']],
+    ['xlw', ['application/vnd.ms-excel', 'application/excel', 'application/x-msexcel', 'application/x-excel']],
+    ['xm', 'audio/xm'],
+    ['xml', ['application/xml', 'text/xml', 'application/atom+xml', 'application/rss+xml']],
+    ['xmz', 'xgl/movie'],
+    ['xo', 'application/vnd.olpc-sugar'],
+    ['xof', 'x-world/x-vrml'],
+    ['xop', 'application/xop+xml'],
+    ['xpi', 'application/x-xpinstall'],
+    ['xpix', 'application/x-vnd.ls-xpix'],
+    ['xpm', ['image/xpm', 'image/x-xpixmap']],
+    ['xpr', 'application/vnd.is-xpr'],
+    ['xps', 'application/vnd.ms-xpsdocument'],
+    ['xpw', 'application/vnd.intercon.formnet'],
+    ['xslt', 'application/xslt+xml'],
+    ['xsm', 'application/vnd.syncml+xml'],
+    ['xspf', 'application/xspf+xml'],
+    ['xsr', 'video/x-amt-showrun'],
+    ['xul', 'application/vnd.mozilla.xul+xml'],
+    ['xwd', ['image/x-xwd', 'image/x-xwindowdump']],
+    ['xyz', ['chemical/x-xyz', 'chemical/x-pdb']],
+    ['yang', 'application/yang'],
+    ['yin', 'application/yin+xml'],
+    ['z', ['application/x-compressed', 'application/x-compress']],
+    ['zaz', 'application/vnd.zzazz.deck+xml'],
+    ['zip', ['application/zip', 'multipart/x-zip', 'application/x-zip-compressed', 'application/x-compressed']],
+    ['zir', 'application/vnd.zul'],
+    ['zmm', 'application/vnd.handheld-entertainment+xml'],
+    ['zoo', 'application/octet-stream'],
+    ['zsh', 'text/x-script.zsh']
+]);
+
+module.exports = {
+    detectMimeType(filename) {
+        if (!filename) {
+            return defaultMimeType;
+        }
+
+        let parsed = path.parse(filename);
+        let extension = (parsed.ext.substr(1) || parsed.name || '').split('?').shift().trim().toLowerCase();
+        let value = defaultMimeType;
+
+        if (extensions.has(extension)) {
+            value = extensions.get(extension);
+        }
+
+        if (Array.isArray(value)) {
+            return value[0];
+        }
+        return value;
+    },
+
+    detectExtension(mimeType) {
+        if (!mimeType) {
+            return defaultExtension;
+        }
+        let parts = (mimeType || '').toLowerCase().trim().split('/');
+        let rootType = parts.shift().trim();
+        let subType = parts.join('/').trim();
+
+        if (mimeTypes.has(rootType + '/' + subType)) {
+            let value = mimeTypes.get(rootType + '/' + subType);
+            if (Array.isArray(value)) {
+                return value[0];
+            }
+            return value;
+        }
+
+        switch (rootType) {
+            case 'text':
+                return 'txt';
+            default:
+                return 'bin';
+        }
+    }
+};
diff --git a/backend/node_modules/nodemailer/lib/mime-node/index.js b/backend/node_modules/nodemailer/lib/mime-node/index.js
new file mode 100644
index 0000000..b92fd7a
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/mime-node/index.js
@@ -0,0 +1,1314 @@
+/* eslint no-undefined: 0, prefer-spread: 0, no-control-regex: 0 */
+
+'use strict';
+
+const crypto = require('crypto');
+const fs = require('fs');
+const punycode = require('../punycode');
+const PassThrough = require('stream').PassThrough;
+const shared = require('../shared');
+
+const mimeFuncs = require('../mime-funcs');
+const qp = require('../qp');
+const base64 = require('../base64');
+const addressparser = require('../addressparser');
+const nmfetch = require('../fetch');
+const LastNewline = require('./last-newline');
+
+const LeWindows = require('./le-windows');
+const LeUnix = require('./le-unix');
+
+/**
+ * Creates a new mime tree node. Assumes 'multipart/*' as the content type
+ * if it is a branch, anything else counts as leaf. If rootNode is missing from
+ * the options, assumes this is the root.
+ *
+ * @param {String} contentType Define the content type for the node. Can be left blank for attachments (derived from filename)
+ * @param {Object} [options] optional options
+ * @param {Object} [options.rootNode] root node for this tree
+ * @param {Object} [options.parentNode] immediate parent for this node
+ * @param {Object} [options.filename] filename for an attachment node
+ * @param {String} [options.baseBoundary] shared part of the unique multipart boundary
+ * @param {Boolean} [options.keepBcc] If true, do not exclude Bcc from the generated headers
+ * @param {Function} [options.normalizeHeaderKey] method to normalize header keys for custom caseing
+ * @param {String} [options.textEncoding] either 'Q' (the default) or 'B'
+ */
+class MimeNode {
+    constructor(contentType, options) {
+        this.nodeCounter = 0;
+
+        options = options || {};
+
+        /**
+         * shared part of the unique multipart boundary
+         */
+        this.baseBoundary = options.baseBoundary || crypto.randomBytes(8).toString('hex');
+        this.boundaryPrefix = options.boundaryPrefix || '--_NmP';
+
+        this.disableFileAccess = !!options.disableFileAccess;
+        this.disableUrlAccess = !!options.disableUrlAccess;
+
+        this.normalizeHeaderKey = options.normalizeHeaderKey;
+
+        /**
+         * If date headers is missing and current node is the root, this value is used instead
+         */
+        this.date = new Date();
+
+        /**
+         * Root node for current mime tree
+         */
+        this.rootNode = options.rootNode || this;
+
+        /**
+         * If true include Bcc in generated headers (if available)
+         */
+        this.keepBcc = !!options.keepBcc;
+
+        /**
+         * If filename is specified but contentType is not (probably an attachment)
+         * detect the content type from filename extension
+         */
+        if (options.filename) {
+            /**
+             * Filename for this node. Useful with attachments
+             */
+            this.filename = options.filename;
+            if (!contentType) {
+                contentType = mimeFuncs.detectMimeType(this.filename.split('.').pop());
+            }
+        }
+
+        /**
+         * Indicates which encoding should be used for header strings: "Q" or "B"
+         */
+        this.textEncoding = (options.textEncoding || '').toString().trim().charAt(0).toUpperCase();
+
+        /**
+         * Immediate parent for this node (or undefined if not set)
+         */
+        this.parentNode = options.parentNode;
+
+        /**
+         * Hostname for default message-id values
+         */
+        this.hostname = options.hostname;
+
+        /**
+         * If set to 'win' then uses \r\n, if 'linux' then \n. If not set (or `raw` is used) then newlines are kept as is.
+         */
+        this.newline = options.newline;
+
+        /**
+         * An array for possible child nodes
+         */
+        this.childNodes = [];
+
+        /**
+         * Used for generating unique boundaries (prepended to the shared base)
+         */
+        this._nodeId = ++this.rootNode.nodeCounter;
+
+        /**
+         * A list of header values for this node in the form of [{key:'', value:''}]
+         */
+        this._headers = [];
+
+        /**
+         * True if the content only uses ASCII printable characters
+         * @type {Boolean}
+         */
+        this._isPlainText = false;
+
+        /**
+         * True if the content is plain text but has longer lines than allowed
+         * @type {Boolean}
+         */
+        this._hasLongLines = false;
+
+        /**
+         * If set, use instead this value for envelopes instead of generating one
+         * @type {Boolean}
+         */
+        this._envelope = false;
+
+        /**
+         * If set then use this value as the stream content instead of building it
+         * @type {String|Buffer|Stream}
+         */
+        this._raw = false;
+
+        /**
+         * Additional transform streams that the message will be piped before
+         * exposing by createReadStream
+         * @type {Array}
+         */
+        this._transforms = [];
+
+        /**
+         * Additional process functions that the message will be piped through before
+         * exposing by createReadStream. These functions are run after transforms
+         * @type {Array}
+         */
+        this._processFuncs = [];
+
+        /**
+         * If content type is set (or derived from the filename) add it to headers
+         */
+        if (contentType) {
+            this.setHeader('Content-Type', contentType);
+        }
+    }
+
+    /////// PUBLIC METHODS
+
+    /**
+     * Creates and appends a child node.Arguments provided are passed to MimeNode constructor
+     *
+     * @param {String} [contentType] Optional content type
+     * @param {Object} [options] Optional options object
+     * @return {Object} Created node object
+     */
+    createChild(contentType, options) {
+        if (!options && typeof contentType === 'object') {
+            options = contentType;
+            contentType = undefined;
+        }
+        let node = new MimeNode(contentType, options);
+        this.appendChild(node);
+        return node;
+    }
+
+    /**
+     * Appends an existing node to the mime tree. Removes the node from an existing
+     * tree if needed
+     *
+     * @param {Object} childNode node to be appended
+     * @return {Object} Appended node object
+     */
+    appendChild(childNode) {
+        if (childNode.rootNode !== this.rootNode) {
+            childNode.rootNode = this.rootNode;
+            childNode._nodeId = ++this.rootNode.nodeCounter;
+        }
+
+        childNode.parentNode = this;
+
+        this.childNodes.push(childNode);
+        return childNode;
+    }
+
+    /**
+     * Replaces current node with another node
+     *
+     * @param {Object} node Replacement node
+     * @return {Object} Replacement node
+     */
+    replace(node) {
+        if (node === this) {
+            return this;
+        }
+
+        this.parentNode.childNodes.forEach((childNode, i) => {
+            if (childNode === this) {
+                node.rootNode = this.rootNode;
+                node.parentNode = this.parentNode;
+                node._nodeId = this._nodeId;
+
+                this.rootNode = this;
+                this.parentNode = undefined;
+
+                node.parentNode.childNodes[i] = node;
+            }
+        });
+
+        return node;
+    }
+
+    /**
+     * Removes current node from the mime tree
+     *
+     * @return {Object} removed node
+     */
+    remove() {
+        if (!this.parentNode) {
+            return this;
+        }
+
+        for (let i = this.parentNode.childNodes.length - 1; i >= 0; i--) {
+            if (this.parentNode.childNodes[i] === this) {
+                this.parentNode.childNodes.splice(i, 1);
+                this.parentNode = undefined;
+                this.rootNode = this;
+                return this;
+            }
+        }
+    }
+
+    /**
+     * Sets a header value. If the value for selected key exists, it is overwritten.
+     * You can set multiple values as well by using [{key:'', value:''}] or
+     * {key: 'value'} as the first argument.
+     *
+     * @param {String|Array|Object} key Header key or a list of key value pairs
+     * @param {String} value Header value
+     * @return {Object} current node
+     */
+    setHeader(key, value) {
+        let added = false,
+            headerValue;
+
+        // Allow setting multiple headers at once
+        if (!value && key && typeof key === 'object') {
+            // allow {key:'content-type', value: 'text/plain'}
+            if (key.key && 'value' in key) {
+                this.setHeader(key.key, key.value);
+            } else if (Array.isArray(key)) {
+                // allow [{key:'content-type', value: 'text/plain'}]
+                key.forEach(i => {
+                    this.setHeader(i.key, i.value);
+                });
+            } else {
+                // allow {'content-type': 'text/plain'}
+                Object.keys(key).forEach(i => {
+                    this.setHeader(i, key[i]);
+                });
+            }
+            return this;
+        }
+
+        key = this._normalizeHeaderKey(key);
+
+        headerValue = {
+            key,
+            value
+        };
+
+        // Check if the value exists and overwrite
+        for (let i = 0, len = this._headers.length; i < len; i++) {
+            if (this._headers[i].key === key) {
+                if (!added) {
+                    // replace the first match
+                    this._headers[i] = headerValue;
+                    added = true;
+                } else {
+                    // remove following matches
+                    this._headers.splice(i, 1);
+                    i--;
+                    len--;
+                }
+            }
+        }
+
+        // match not found, append the value
+        if (!added) {
+            this._headers.push(headerValue);
+        }
+
+        return this;
+    }
+
+    /**
+     * Adds a header value. If the value for selected key exists, the value is appended
+     * as a new field and old one is not touched.
+     * You can set multiple values as well by using [{key:'', value:''}] or
+     * {key: 'value'} as the first argument.
+     *
+     * @param {String|Array|Object} key Header key or a list of key value pairs
+     * @param {String} value Header value
+     * @return {Object} current node
+     */
+    addHeader(key, value) {
+        // Allow setting multiple headers at once
+        if (!value && key && typeof key === 'object') {
+            // allow {key:'content-type', value: 'text/plain'}
+            if (key.key && key.value) {
+                this.addHeader(key.key, key.value);
+            } else if (Array.isArray(key)) {
+                // allow [{key:'content-type', value: 'text/plain'}]
+                key.forEach(i => {
+                    this.addHeader(i.key, i.value);
+                });
+            } else {
+                // allow {'content-type': 'text/plain'}
+                Object.keys(key).forEach(i => {
+                    this.addHeader(i, key[i]);
+                });
+            }
+            return this;
+        } else if (Array.isArray(value)) {
+            value.forEach(val => {
+                this.addHeader(key, val);
+            });
+            return this;
+        }
+
+        this._headers.push({
+            key: this._normalizeHeaderKey(key),
+            value
+        });
+
+        return this;
+    }
+
+    /**
+     * Retrieves the first mathcing value of a selected key
+     *
+     * @param {String} key Key to search for
+     * @retun {String} Value for the key
+     */
+    getHeader(key) {
+        key = this._normalizeHeaderKey(key);
+        for (let i = 0, len = this._headers.length; i < len; i++) {
+            if (this._headers[i].key === key) {
+                return this._headers[i].value;
+            }
+        }
+    }
+
+    /**
+     * Sets body content for current node. If the value is a string, charset is added automatically
+     * to Content-Type (if it is text/*). If the value is a Buffer, you need to specify
+     * the charset yourself
+     *
+     * @param (String|Buffer) content Body content
+     * @return {Object} current node
+     */
+    setContent(content) {
+        this.content = content;
+        if (typeof this.content.pipe === 'function') {
+            // pre-stream handler. might be triggered if a stream is set as content
+            // and 'error' fires before anything is done with this stream
+            this._contentErrorHandler = err => {
+                this.content.removeListener('error', this._contentErrorHandler);
+                this.content = err;
+            };
+            this.content.once('error', this._contentErrorHandler);
+        } else if (typeof this.content === 'string') {
+            this._isPlainText = mimeFuncs.isPlainText(this.content);
+            if (this._isPlainText && mimeFuncs.hasLongerLines(this.content, 76)) {
+                // If there are lines longer than 76 symbols/bytes do not use 7bit
+                this._hasLongLines = true;
+            }
+        }
+        return this;
+    }
+
+    build(callback) {
+        let promise;
+
+        if (!callback) {
+            promise = new Promise((resolve, reject) => {
+                callback = shared.callbackPromise(resolve, reject);
+            });
+        }
+
+        let stream = this.createReadStream();
+        let buf = [];
+        let buflen = 0;
+        let returned = false;
+
+        stream.on('readable', () => {
+            let chunk;
+
+            while ((chunk = stream.read()) !== null) {
+                buf.push(chunk);
+                buflen += chunk.length;
+            }
+        });
+
+        stream.once('error', err => {
+            if (returned) {
+                return;
+            }
+            returned = true;
+
+            return callback(err);
+        });
+
+        stream.once('end', chunk => {
+            if (returned) {
+                return;
+            }
+            returned = true;
+
+            if (chunk && chunk.length) {
+                buf.push(chunk);
+                buflen += chunk.length;
+            }
+            return callback(null, Buffer.concat(buf, buflen));
+        });
+
+        return promise;
+    }
+
+    getTransferEncoding() {
+        let transferEncoding = false;
+        let contentType = (this.getHeader('Content-Type') || '').toString().toLowerCase().trim();
+
+        if (this.content) {
+            transferEncoding = (this.getHeader('Content-Transfer-Encoding') || '').toString().toLowerCase().trim();
+            if (!transferEncoding || !['base64', 'quoted-printable'].includes(transferEncoding)) {
+                if (/^text\//i.test(contentType)) {
+                    // If there are no special symbols, no need to modify the text
+                    if (this._isPlainText && !this._hasLongLines) {
+                        transferEncoding = '7bit';
+                    } else if (typeof this.content === 'string' || this.content instanceof Buffer) {
+                        // detect preferred encoding for string value
+                        transferEncoding = this._getTextEncoding(this.content) === 'Q' ? 'quoted-printable' : 'base64';
+                    } else {
+                        // we can not check content for a stream, so either use preferred encoding or fallback to QP
+                        transferEncoding = this.textEncoding === 'B' ? 'base64' : 'quoted-printable';
+                    }
+                } else if (!/^(multipart|message)\//i.test(contentType)) {
+                    transferEncoding = transferEncoding || 'base64';
+                }
+            }
+        }
+        return transferEncoding;
+    }
+
+    /**
+     * Builds the header block for the mime node. Append \r\n\r\n before writing the content
+     *
+     * @returns {String} Headers
+     */
+    buildHeaders() {
+        let transferEncoding = this.getTransferEncoding();
+        let headers = [];
+
+        if (transferEncoding) {
+            this.setHeader('Content-Transfer-Encoding', transferEncoding);
+        }
+
+        if (this.filename && !this.getHeader('Content-Disposition')) {
+            this.setHeader('Content-Disposition', 'attachment');
+        }
+
+        // Ensure mandatory header fields
+        if (this.rootNode === this) {
+            if (!this.getHeader('Date')) {
+                this.setHeader('Date', this.date.toUTCString().replace(/GMT/, '+0000'));
+            }
+
+            // ensure that Message-Id is present
+            this.messageId();
+
+            if (!this.getHeader('MIME-Version')) {
+                this.setHeader('MIME-Version', '1.0');
+            }
+
+            // Ensure that Content-Type is the last header for the root node
+            for (let i = this._headers.length - 2; i >= 0; i--) {
+                let header = this._headers[i];
+                if (header.key === 'Content-Type') {
+                    this._headers.splice(i, 1);
+                    this._headers.push(header);
+                }
+            }
+        }
+
+        this._headers.forEach(header => {
+            let key = header.key;
+            let value = header.value;
+            let structured;
+            let param;
+            let options = {};
+            let formattedHeaders = ['From', 'Sender', 'To', 'Cc', 'Bcc', 'Reply-To', 'Date', 'References'];
+
+            if (value && typeof value === 'object' && !formattedHeaders.includes(key)) {
+                Object.keys(value).forEach(key => {
+                    if (key !== 'value') {
+                        options[key] = value[key];
+                    }
+                });
+                value = (value.value || '').toString();
+                if (!value.trim()) {
+                    return;
+                }
+            }
+
+            if (options.prepared) {
+                // header value is
+                if (options.foldLines) {
+                    headers.push(mimeFuncs.foldLines(key + ': ' + value));
+                } else {
+                    headers.push(key + ': ' + value);
+                }
+                return;
+            }
+
+            switch (header.key) {
+                case 'Content-Disposition':
+                    structured = mimeFuncs.parseHeaderValue(value);
+                    if (this.filename) {
+                        structured.params.filename = this.filename;
+                    }
+                    value = mimeFuncs.buildHeaderValue(structured);
+                    break;
+
+                case 'Content-Type':
+                    structured = mimeFuncs.parseHeaderValue(value);
+
+                    this._handleContentType(structured);
+
+                    if (structured.value.match(/^text\/plain\b/) && typeof this.content === 'string' && /[\u0080-\uFFFF]/.test(this.content)) {
+                        structured.params.charset = 'utf-8';
+                    }
+
+                    value = mimeFuncs.buildHeaderValue(structured);
+
+                    if (this.filename) {
+                        // add support for non-compliant clients like QQ webmail
+                        // we can't build the value with buildHeaderValue as the value is non standard and
+                        // would be converted to parameter continuation encoding that we do not want
+                        param = this._encodeWords(this.filename);
+
+                        if (param !== this.filename || /[\s'"\\;:/=(),<>@[\]?]|^-/.test(param)) {
+                            // include value in quotes if needed
+                            param = '"' + param + '"';
+                        }
+                        value += '; name=' + param;
+                    }
+                    break;
+
+                case 'Bcc':
+                    if (!this.keepBcc) {
+                        // skip BCC values
+                        return;
+                    }
+                    break;
+            }
+
+            value = this._encodeHeaderValue(key, value);
+
+            // skip empty lines
+            if (!(value || '').toString().trim()) {
+                return;
+            }
+
+            if (typeof this.normalizeHeaderKey === 'function') {
+                let normalized = this.normalizeHeaderKey(key, value);
+                if (normalized && typeof normalized === 'string' && normalized.length) {
+                    key = normalized;
+                }
+            }
+
+            headers.push(mimeFuncs.foldLines(key + ': ' + value, 76));
+        });
+
+        return headers.join('\r\n');
+    }
+
+    /**
+     * Streams the rfc2822 message from the current node. If this is a root node,
+     * mandatory header fields are set if missing (Date, Message-Id, MIME-Version)
+     *
+     * @return {String} Compiled message
+     */
+    createReadStream(options) {
+        options = options || {};
+
+        let stream = new PassThrough(options);
+        let outputStream = stream;
+        let transform;
+
+        this.stream(stream, options, err => {
+            if (err) {
+                outputStream.emit('error', err);
+                return;
+            }
+            stream.end();
+        });
+
+        for (let i = 0, len = this._transforms.length; i < len; i++) {
+            transform = typeof this._transforms[i] === 'function' ? this._transforms[i]() : this._transforms[i];
+            outputStream.once('error', err => {
+                transform.emit('error', err);
+            });
+            outputStream = outputStream.pipe(transform);
+        }
+
+        // ensure terminating newline after possible user transforms
+        transform = new LastNewline();
+        outputStream.once('error', err => {
+            transform.emit('error', err);
+        });
+        outputStream = outputStream.pipe(transform);
+
+        // dkim and stuff
+        for (let i = 0, len = this._processFuncs.length; i < len; i++) {
+            transform = this._processFuncs[i];
+            outputStream = transform(outputStream);
+        }
+
+        if (this.newline) {
+            const winbreak = ['win', 'windows', 'dos', '\r\n'].includes(this.newline.toString().toLowerCase());
+            const newlineTransform = winbreak ? new LeWindows() : new LeUnix();
+
+            const stream = outputStream.pipe(newlineTransform);
+            outputStream.on('error', err => stream.emit('error', err));
+            return stream;
+        }
+
+        return outputStream;
+    }
+
+    /**
+     * Appends a transform stream object to the transforms list. Final output
+     * is passed through this stream before exposing
+     *
+     * @param {Object} transform Read-Write stream
+     */
+    transform(transform) {
+        this._transforms.push(transform);
+    }
+
+    /**
+     * Appends a post process function. The functon is run after transforms and
+     * uses the following syntax
+     *
+     *   processFunc(input) -> outputStream
+     *
+     * @param {Object} processFunc Read-Write stream
+     */
+    processFunc(processFunc) {
+        this._processFuncs.push(processFunc);
+    }
+
+    stream(outputStream, options, done) {
+        let transferEncoding = this.getTransferEncoding();
+        let contentStream;
+        let localStream;
+
+        // protect actual callback against multiple triggering
+        let returned = false;
+        let callback = err => {
+            if (returned) {
+                return;
+            }
+            returned = true;
+            done(err);
+        };
+
+        // for multipart nodes, push child nodes
+        // for content nodes end the stream
+        let finalize = () => {
+            let childId = 0;
+            let processChildNode = () => {
+                if (childId >= this.childNodes.length) {
+                    outputStream.write('\r\n--' + this.boundary + '--\r\n');
+                    return callback();
+                }
+                let child = this.childNodes[childId++];
+                outputStream.write((childId > 1 ? '\r\n' : '') + '--' + this.boundary + '\r\n');
+                child.stream(outputStream, options, err => {
+                    if (err) {
+                        return callback(err);
+                    }
+                    setImmediate(processChildNode);
+                });
+            };
+
+            if (this.multipart) {
+                setImmediate(processChildNode);
+            } else {
+                return callback();
+            }
+        };
+
+        // pushes node content
+        let sendContent = () => {
+            if (this.content) {
+                if (Object.prototype.toString.call(this.content) === '[object Error]') {
+                    // content is already errored
+                    return callback(this.content);
+                }
+
+                if (typeof this.content.pipe === 'function') {
+                    this.content.removeListener('error', this._contentErrorHandler);
+                    this._contentErrorHandler = err => callback(err);
+                    this.content.once('error', this._contentErrorHandler);
+                }
+
+                let createStream = () => {
+                    if (['quoted-printable', 'base64'].includes(transferEncoding)) {
+                        contentStream = new (transferEncoding === 'base64' ? base64 : qp).Encoder(options);
+
+                        contentStream.pipe(outputStream, {
+                            end: false
+                        });
+                        contentStream.once('end', finalize);
+                        contentStream.once('error', err => callback(err));
+
+                        localStream = this._getStream(this.content);
+                        localStream.pipe(contentStream);
+                    } else {
+                        // anything that is not QP or Base54 passes as-is
+                        localStream = this._getStream(this.content);
+                        localStream.pipe(outputStream, {
+                            end: false
+                        });
+                        localStream.once('end', finalize);
+                    }
+
+                    localStream.once('error', err => callback(err));
+                };
+
+                if (this.content._resolve) {
+                    let chunks = [];
+                    let chunklen = 0;
+                    let returned = false;
+                    let sourceStream = this._getStream(this.content);
+                    sourceStream.on('error', err => {
+                        if (returned) {
+                            return;
+                        }
+                        returned = true;
+                        callback(err);
+                    });
+                    sourceStream.on('readable', () => {
+                        let chunk;
+                        while ((chunk = sourceStream.read()) !== null) {
+                            chunks.push(chunk);
+                            chunklen += chunk.length;
+                        }
+                    });
+                    sourceStream.on('end', () => {
+                        if (returned) {
+                            return;
+                        }
+                        returned = true;
+                        this.content._resolve = false;
+                        this.content._resolvedValue = Buffer.concat(chunks, chunklen);
+                        setImmediate(createStream);
+                    });
+                } else {
+                    setImmediate(createStream);
+                }
+                return;
+            } else {
+                return setImmediate(finalize);
+            }
+        };
+
+        if (this._raw) {
+            setImmediate(() => {
+                if (Object.prototype.toString.call(this._raw) === '[object Error]') {
+                    // content is already errored
+                    return callback(this._raw);
+                }
+
+                // remove default error handler (if set)
+                if (typeof this._raw.pipe === 'function') {
+                    this._raw.removeListener('error', this._contentErrorHandler);
+                }
+
+                let raw = this._getStream(this._raw);
+                raw.pipe(outputStream, {
+                    end: false
+                });
+                raw.on('error', err => outputStream.emit('error', err));
+                raw.on('end', finalize);
+            });
+        } else {
+            outputStream.write(this.buildHeaders() + '\r\n\r\n');
+            setImmediate(sendContent);
+        }
+    }
+
+    /**
+     * Sets envelope to be used instead of the generated one
+     *
+     * @return {Object} SMTP envelope in the form of {from: 'from@example.com', to: ['to@example.com']}
+     */
+    setEnvelope(envelope) {
+        let list;
+
+        this._envelope = {
+            from: false,
+            to: []
+        };
+
+        if (envelope.from) {
+            list = [];
+            this._convertAddresses(this._parseAddresses(envelope.from), list);
+            list = list.filter(address => address && address.address);
+            if (list.length && list[0]) {
+                this._envelope.from = list[0].address;
+            }
+        }
+        ['to', 'cc', 'bcc'].forEach(key => {
+            if (envelope[key]) {
+                this._convertAddresses(this._parseAddresses(envelope[key]), this._envelope.to);
+            }
+        });
+
+        this._envelope.to = this._envelope.to.map(to => to.address).filter(address => address);
+
+        let standardFields = ['to', 'cc', 'bcc', 'from'];
+        Object.keys(envelope).forEach(key => {
+            if (!standardFields.includes(key)) {
+                this._envelope[key] = envelope[key];
+            }
+        });
+
+        return this;
+    }
+
+    /**
+     * Generates and returns an object with parsed address fields
+     *
+     * @return {Object} Address object
+     */
+    getAddresses() {
+        let addresses = {};
+
+        this._headers.forEach(header => {
+            let key = header.key.toLowerCase();
+            if (['from', 'sender', 'reply-to', 'to', 'cc', 'bcc'].includes(key)) {
+                if (!Array.isArray(addresses[key])) {
+                    addresses[key] = [];
+                }
+
+                this._convertAddresses(this._parseAddresses(header.value), addresses[key]);
+            }
+        });
+
+        return addresses;
+    }
+
+    /**
+     * Generates and returns SMTP envelope with the sender address and a list of recipients addresses
+     *
+     * @return {Object} SMTP envelope in the form of {from: 'from@example.com', to: ['to@example.com']}
+     */
+    getEnvelope() {
+        if (this._envelope) {
+            return this._envelope;
+        }
+
+        let envelope = {
+            from: false,
+            to: []
+        };
+        this._headers.forEach(header => {
+            let list = [];
+            if (header.key === 'From' || (!envelope.from && ['Reply-To', 'Sender'].includes(header.key))) {
+                this._convertAddresses(this._parseAddresses(header.value), list);
+                if (list.length && list[0]) {
+                    envelope.from = list[0].address;
+                }
+            } else if (['To', 'Cc', 'Bcc'].includes(header.key)) {
+                this._convertAddresses(this._parseAddresses(header.value), envelope.to);
+            }
+        });
+
+        envelope.to = envelope.to.map(to => to.address);
+
+        return envelope;
+    }
+
+    /**
+     * Returns Message-Id value. If it does not exist, then creates one
+     *
+     * @return {String} Message-Id value
+     */
+    messageId() {
+        let messageId = this.getHeader('Message-ID');
+        // You really should define your own Message-Id field!
+        if (!messageId) {
+            messageId = this._generateMessageId();
+            this.setHeader('Message-ID', messageId);
+        }
+        return messageId;
+    }
+
+    /**
+     * Sets pregenerated content that will be used as the output of this node
+     *
+     * @param {String|Buffer|Stream} Raw MIME contents
+     */
+    setRaw(raw) {
+        this._raw = raw;
+
+        if (this._raw && typeof this._raw.pipe === 'function') {
+            // pre-stream handler. might be triggered if a stream is set as content
+            // and 'error' fires before anything is done with this stream
+            this._contentErrorHandler = err => {
+                this._raw.removeListener('error', this._contentErrorHandler);
+                this._raw = err;
+            };
+            this._raw.once('error', this._contentErrorHandler);
+        }
+
+        return this;
+    }
+
+    /////// PRIVATE METHODS
+
+    /**
+     * Detects and returns handle to a stream related with the content.
+     *
+     * @param {Mixed} content Node content
+     * @returns {Object} Stream object
+     */
+    _getStream(content) {
+        let contentStream;
+
+        if (content._resolvedValue) {
+            // pass string or buffer content as a stream
+            contentStream = new PassThrough();
+
+            setImmediate(() => {
+                try {
+                    contentStream.end(content._resolvedValue);
+                } catch (err) {
+                    contentStream.emit('error', err);
+                }
+            });
+
+            return contentStream;
+        } else if (typeof content.pipe === 'function') {
+            // assume as stream
+            return content;
+        } else if (content && typeof content.path === 'string' && !content.href) {
+            if (this.disableFileAccess) {
+                contentStream = new PassThrough();
+                setImmediate(() => contentStream.emit('error', new Error('File access rejected for ' + content.path)));
+                return contentStream;
+            }
+            // read file
+            return fs.createReadStream(content.path);
+        } else if (content && typeof content.href === 'string') {
+            if (this.disableUrlAccess) {
+                contentStream = new PassThrough();
+                setImmediate(() => contentStream.emit('error', new Error('Url access rejected for ' + content.href)));
+                return contentStream;
+            }
+            // fetch URL
+            return nmfetch(content.href, { headers: content.httpHeaders });
+        } else {
+            // pass string or buffer content as a stream
+            contentStream = new PassThrough();
+
+            setImmediate(() => {
+                try {
+                    contentStream.end(content || '');
+                } catch (err) {
+                    contentStream.emit('error', err);
+                }
+            });
+            return contentStream;
+        }
+    }
+
+    /**
+     * Parses addresses. Takes in a single address or an array or an
+     * array of address arrays (eg. To: [[first group], [second group],...])
+     *
+     * @param {Mixed} addresses Addresses to be parsed
+     * @return {Array} An array of address objects
+     */
+    _parseAddresses(addresses) {
+        return [].concat.apply(
+            [],
+            [].concat(addresses).map(address => {
+                // eslint-disable-line prefer-spread
+                if (address && address.address) {
+                    address.address = this._normalizeAddress(address.address);
+                    address.name = address.name || '';
+                    return [address];
+                }
+                return addressparser(address);
+            })
+        );
+    }
+
+    /**
+     * Normalizes a header key, uses Camel-Case form, except for uppercase MIME-
+     *
+     * @param {String} key Key to be normalized
+     * @return {String} key in Camel-Case form
+     */
+    _normalizeHeaderKey(key) {
+        key = (key || '')
+            .toString()
+            // no newlines in keys
+            .replace(/\r?\n|\r/g, ' ')
+            .trim()
+            .toLowerCase()
+            // use uppercase words, except MIME
+            .replace(/^X-SMTPAPI$|^(MIME|DKIM|ARC|BIMI)\b|^[a-z]|-(SPF|FBL|ID|MD5)$|-[a-z]/gi, c => c.toUpperCase())
+            // special case
+            .replace(/^Content-Features$/i, 'Content-features');
+
+        return key;
+    }
+
+    /**
+     * Checks if the content type is multipart and defines boundary if needed.
+     * Doesn't return anything, modifies object argument instead.
+     *
+     * @param {Object} structured Parsed header value for 'Content-Type' key
+     */
+    _handleContentType(structured) {
+        this.contentType = structured.value.trim().toLowerCase();
+
+        this.multipart = /^multipart\//i.test(this.contentType) ? this.contentType.substr(this.contentType.indexOf('/') + 1) : false;
+
+        if (this.multipart) {
+            this.boundary = structured.params.boundary = structured.params.boundary || this.boundary || this._generateBoundary();
+        } else {
+            this.boundary = false;
+        }
+    }
+
+    /**
+     * Generates a multipart boundary value
+     *
+     * @return {String} boundary value
+     */
+    _generateBoundary() {
+        return this.rootNode.boundaryPrefix + '-' + this.rootNode.baseBoundary + '-Part_' + this._nodeId;
+    }
+
+    /**
+     * Encodes a header value for use in the generated rfc2822 email.
+     *
+     * @param {String} key Header key
+     * @param {String} value Header value
+     */
+    _encodeHeaderValue(key, value) {
+        key = this._normalizeHeaderKey(key);
+
+        switch (key) {
+            // Structured headers
+            case 'From':
+            case 'Sender':
+            case 'To':
+            case 'Cc':
+            case 'Bcc':
+            case 'Reply-To':
+                return this._convertAddresses(this._parseAddresses(value));
+
+            // values enclosed in <>
+            case 'Message-ID':
+            case 'In-Reply-To':
+            case 'Content-Id':
+                value = (value || '').toString().replace(/\r?\n|\r/g, ' ');
+
+                if (value.charAt(0) !== '<') {
+                    value = '<' + value;
+                }
+
+                if (value.charAt(value.length - 1) !== '>') {
+                    value = value + '>';
+                }
+                return value;
+
+            // space separated list of values enclosed in <>
+            case 'References':
+                value = [].concat
+                    .apply(
+                        [],
+                        [].concat(value || '').map(elm => {
+                            // eslint-disable-line prefer-spread
+                            elm = (elm || '')
+                                .toString()
+                                .replace(/\r?\n|\r/g, ' ')
+                                .trim();
+                            return elm.replace(/<[^>]*>/g, str => str.replace(/\s/g, '')).split(/\s+/);
+                        })
+                    )
+                    .map(elm => {
+                        if (elm.charAt(0) !== '<') {
+                            elm = '<' + elm;
+                        }
+                        if (elm.charAt(elm.length - 1) !== '>') {
+                            elm = elm + '>';
+                        }
+                        return elm;
+                    });
+
+                return value.join(' ').trim();
+
+            case 'Date':
+                if (Object.prototype.toString.call(value) === '[object Date]') {
+                    return value.toUTCString().replace(/GMT/, '+0000');
+                }
+
+                value = (value || '').toString().replace(/\r?\n|\r/g, ' ');
+                return this._encodeWords(value);
+
+            case 'Content-Type':
+            case 'Content-Disposition':
+                // if it includes a filename then it is already encoded
+                return (value || '').toString().replace(/\r?\n|\r/g, ' ');
+
+            default:
+                value = (value || '').toString().replace(/\r?\n|\r/g, ' ');
+                // encodeWords only encodes if needed, otherwise the original string is returned
+                return this._encodeWords(value);
+        }
+    }
+
+    /**
+     * Rebuilds address object using punycode and other adjustments
+     *
+     * @param {Array} addresses An array of address objects
+     * @param {Array} [uniqueList] An array to be populated with addresses
+     * @return {String} address string
+     */
+    _convertAddresses(addresses, uniqueList) {
+        let values = [];
+
+        uniqueList = uniqueList || [];
+
+        [].concat(addresses || []).forEach(address => {
+            if (address.address) {
+                address.address = this._normalizeAddress(address.address);
+
+                if (!address.name) {
+                    values.push(address.address.indexOf(' ') >= 0 ? `<${address.address}>` : `${address.address}`);
+                } else if (address.name) {
+                    values.push(`${this._encodeAddressName(address.name)} <${address.address}>`);
+                }
+
+                if (address.address) {
+                    if (!uniqueList.filter(a => a.address === address.address).length) {
+                        uniqueList.push(address);
+                    }
+                }
+            } else if (address.group) {
+                let groupListAddresses = (address.group.length ? this._convertAddresses(address.group, uniqueList) : '').trim();
+                values.push(`${this._encodeAddressName(address.name)}:${groupListAddresses};`);
+            }
+        });
+
+        return values.join(', ');
+    }
+
+    /**
+     * Normalizes an email address
+     *
+     * @param {Array} address An array of address objects
+     * @return {String} address string
+     */
+    _normalizeAddress(address) {
+        address = (address || '')
+            .toString()
+            .replace(/[\x00-\x1F<>]+/g, ' ') // remove unallowed characters
+            .trim();
+
+        let lastAt = address.lastIndexOf('@');
+        if (lastAt < 0) {
+            // Bare username
+            return address;
+        }
+
+        let user = address.substr(0, lastAt);
+        let domain = address.substr(lastAt + 1);
+
+        // Usernames are not touched and are kept as is even if these include unicode
+        // Domains are punycoded by default
+        // 'jõgeva.ee' will be converted to 'xn--jgeva-dua.ee'
+        // non-unicode domains are left as is
+
+        let encodedDomain;
+
+        try {
+            encodedDomain = punycode.toASCII(domain.toLowerCase());
+        } catch (err) {
+            // keep as is?
+        }
+
+        if (user.indexOf(' ') >= 0) {
+            if (user.charAt(0) !== '"') {
+                user = '"' + user;
+            }
+            if (user.substr(-1) !== '"') {
+                user = user + '"';
+            }
+        }
+
+        return `${user}@${encodedDomain}`;
+    }
+
+    /**
+     * If needed, mime encodes the name part
+     *
+     * @param {String} name Name part of an address
+     * @returns {String} Mime word encoded string if needed
+     */
+    _encodeAddressName(name) {
+        if (!/^[\w ]*$/.test(name)) {
+            if (/^[\x20-\x7e]*$/.test(name)) {
+                return '"' + name.replace(/([\\"])/g, '\\$1') + '"';
+            } else {
+                return mimeFuncs.encodeWord(name, this._getTextEncoding(name), 52);
+            }
+        }
+        return name;
+    }
+
+    /**
+     * If needed, mime encodes the name part
+     *
+     * @param {String} name Name part of an address
+     * @returns {String} Mime word encoded string if needed
+     */
+    _encodeWords(value) {
+        // set encodeAll parameter to true even though it is against the recommendation of RFC2047,
+        // by default only words that include non-ascii should be converted into encoded words
+        // but some clients (eg. Zimbra) do not handle it properly and remove surrounding whitespace
+        return mimeFuncs.encodeWords(value, this._getTextEncoding(value), 52, true);
+    }
+
+    /**
+     * Detects best mime encoding for a text value
+     *
+     * @param {String} value Value to check for
+     * @return {String} either 'Q' or 'B'
+     */
+    _getTextEncoding(value) {
+        value = (value || '').toString();
+
+        let encoding = this.textEncoding;
+        let latinLen;
+        let nonLatinLen;
+
+        if (!encoding) {
+            // count latin alphabet symbols and 8-bit range symbols + control symbols
+            // if there are more latin characters, then use quoted-printable
+            // encoding, otherwise use base64
+            nonLatinLen = (value.match(/[\x00-\x08\x0B\x0C\x0E-\x1F\u0080-\uFFFF]/g) || []).length; // eslint-disable-line no-control-regex
+            latinLen = (value.match(/[a-z]/gi) || []).length;
+            // if there are more latin symbols than binary/unicode, then prefer Q, otherwise B
+            encoding = nonLatinLen < latinLen ? 'Q' : 'B';
+        }
+        return encoding;
+    }
+
+    /**
+     * Generates a message id
+     *
+     * @return {String} Random Message-ID value
+     */
+    _generateMessageId() {
+        return (
+            '<' +
+            [2, 2, 2, 6].reduce(
+                // crux to generate UUID-like random strings
+                (prev, len) => prev + '-' + crypto.randomBytes(len).toString('hex'),
+                crypto.randomBytes(4).toString('hex')
+            ) +
+            '@' +
+            // try to use the domain of the FROM address or fallback to server hostname
+            (this.getEnvelope().from || this.hostname || 'localhost').split('@').pop() +
+            '>'
+        );
+    }
+}
+
+module.exports = MimeNode;
diff --git a/backend/node_modules/nodemailer/lib/mime-node/last-newline.js b/backend/node_modules/nodemailer/lib/mime-node/last-newline.js
new file mode 100644
index 0000000..5fcd057
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/mime-node/last-newline.js
@@ -0,0 +1,33 @@
+'use strict';
+
+const Transform = require('stream').Transform;
+
+class LastNewline extends Transform {
+    constructor() {
+        super();
+        this.lastByte = false;
+    }
+
+    _transform(chunk, encoding, done) {
+        if (chunk.length) {
+            this.lastByte = chunk[chunk.length - 1];
+        }
+
+        this.push(chunk);
+        done();
+    }
+
+    _flush(done) {
+        if (this.lastByte === 0x0a) {
+            return done();
+        }
+        if (this.lastByte === 0x0d) {
+            this.push(Buffer.from('\n'));
+            return done();
+        }
+        this.push(Buffer.from('\r\n'));
+        return done();
+    }
+}
+
+module.exports = LastNewline;
diff --git a/backend/node_modules/nodemailer/lib/mime-node/le-unix.js b/backend/node_modules/nodemailer/lib/mime-node/le-unix.js
new file mode 100644
index 0000000..5feacd3
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/mime-node/le-unix.js
@@ -0,0 +1,43 @@
+'use strict';
+
+const stream = require('stream');
+const Transform = stream.Transform;
+
+/**
+ * Ensures that only <LF> is used for linebreaks
+ *
+ * @param {Object} options Stream options
+ */
+class LeWindows extends Transform {
+    constructor(options) {
+        super(options);
+        // init Transform
+        this.options = options || {};
+    }
+
+    /**
+     * Escapes dots
+     */
+    _transform(chunk, encoding, done) {
+        let buf;
+        let lastPos = 0;
+
+        for (let i = 0, len = chunk.length; i < len; i++) {
+            if (chunk[i] === 0x0d) {
+                // \n
+                buf = chunk.slice(lastPos, i);
+                lastPos = i + 1;
+                this.push(buf);
+            }
+        }
+        if (lastPos && lastPos < chunk.length) {
+            buf = chunk.slice(lastPos);
+            this.push(buf);
+        } else if (!lastPos) {
+            this.push(chunk);
+        }
+        done();
+    }
+}
+
+module.exports = LeWindows;
diff --git a/backend/node_modules/nodemailer/lib/mime-node/le-windows.js b/backend/node_modules/nodemailer/lib/mime-node/le-windows.js
new file mode 100644
index 0000000..b156a7c
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/mime-node/le-windows.js
@@ -0,0 +1,52 @@
+'use strict';
+
+const stream = require('stream');
+const Transform = stream.Transform;
+
+/**
+ * Ensures that only <CR><LF> sequences are used for linebreaks
+ *
+ * @param {Object} options Stream options
+ */
+class LeWindows extends Transform {
+    constructor(options) {
+        super(options);
+        // init Transform
+        this.options = options || {};
+        this.lastByte = false;
+    }
+
+    /**
+     * Escapes dots
+     */
+    _transform(chunk, encoding, done) {
+        let buf;
+        let lastPos = 0;
+
+        for (let i = 0, len = chunk.length; i < len; i++) {
+            if (chunk[i] === 0x0a) {
+                // \n
+                if ((i && chunk[i - 1] !== 0x0d) || (!i && this.lastByte !== 0x0d)) {
+                    if (i > lastPos) {
+                        buf = chunk.slice(lastPos, i);
+                        this.push(buf);
+                    }
+                    this.push(Buffer.from('\r\n'));
+                    lastPos = i + 1;
+                }
+            }
+        }
+
+        if (lastPos && lastPos < chunk.length) {
+            buf = chunk.slice(lastPos);
+            this.push(buf);
+        } else if (!lastPos) {
+            this.push(chunk);
+        }
+
+        this.lastByte = chunk[chunk.length - 1];
+        done();
+    }
+}
+
+module.exports = LeWindows;
diff --git a/backend/node_modules/nodemailer/lib/nodemailer.js b/backend/node_modules/nodemailer/lib/nodemailer.js
new file mode 100644
index 0000000..9d43375
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/nodemailer.js
@@ -0,0 +1,150 @@
+'use strict';
+
+const Mailer = require('./mailer');
+const shared = require('./shared');
+const SMTPPool = require('./smtp-pool');
+const SMTPTransport = require('./smtp-transport');
+const SendmailTransport = require('./sendmail-transport');
+const StreamTransport = require('./stream-transport');
+const JSONTransport = require('./json-transport');
+const SESTransport = require('./ses-transport');
+const nmfetch = require('./fetch');
+const packageData = require('../package.json');
+
+const ETHEREAL_API = (process.env.ETHEREAL_API || 'https://api.nodemailer.com').replace(/\/+$/, '');
+const ETHEREAL_WEB = (process.env.ETHEREAL_WEB || 'https://ethereal.email').replace(/\/+$/, '');
+const ETHEREAL_API_KEY = (process.env.ETHEREAL_API_KEY || '').replace(/\s*/g, '') || null;
+const ETHEREAL_CACHE = ['true', 'yes', 'y', '1'].includes((process.env.ETHEREAL_CACHE || 'yes').toString().trim().toLowerCase());
+
+let testAccount = false;
+
+module.exports.createTransport = function (transporter, defaults) {
+    let urlConfig;
+    let options;
+    let mailer;
+
+    if (
+        // provided transporter is a configuration object, not transporter plugin
+        (typeof transporter === 'object' && typeof transporter.send !== 'function') ||
+        // provided transporter looks like a connection url
+        (typeof transporter === 'string' && /^(smtps?|direct):/i.test(transporter))
+    ) {
+        if ((urlConfig = typeof transporter === 'string' ? transporter : transporter.url)) {
+            // parse a configuration URL into configuration options
+            options = shared.parseConnectionUrl(urlConfig);
+        } else {
+            options = transporter;
+        }
+
+        if (options.pool) {
+            transporter = new SMTPPool(options);
+        } else if (options.sendmail) {
+            transporter = new SendmailTransport(options);
+        } else if (options.streamTransport) {
+            transporter = new StreamTransport(options);
+        } else if (options.jsonTransport) {
+            transporter = new JSONTransport(options);
+        } else if (options.SES) {
+            transporter = new SESTransport(options);
+        } else {
+            transporter = new SMTPTransport(options);
+        }
+    }
+
+    mailer = new Mailer(transporter, options, defaults);
+
+    return mailer;
+};
+
+module.exports.createTestAccount = function (apiUrl, callback) {
+    let promise;
+
+    if (!callback && typeof apiUrl === 'function') {
+        callback = apiUrl;
+        apiUrl = false;
+    }
+
+    if (!callback) {
+        promise = new Promise((resolve, reject) => {
+            callback = shared.callbackPromise(resolve, reject);
+        });
+    }
+
+    if (ETHEREAL_CACHE && testAccount) {
+        setImmediate(() => callback(null, testAccount));
+        return promise;
+    }
+
+    apiUrl = apiUrl || ETHEREAL_API;
+
+    let chunks = [];
+    let chunklen = 0;
+
+    let requestHeaders = {};
+    let requestBody = {
+        requestor: packageData.name,
+        version: packageData.version
+    };
+
+    if (ETHEREAL_API_KEY) {
+        requestHeaders.Authorization = 'Bearer ' + ETHEREAL_API_KEY;
+    }
+
+    let req = nmfetch(apiUrl + '/user', {
+        contentType: 'application/json',
+        method: 'POST',
+        headers: requestHeaders,
+        body: Buffer.from(JSON.stringify(requestBody))
+    });
+
+    req.on('readable', () => {
+        let chunk;
+        while ((chunk = req.read()) !== null) {
+            chunks.push(chunk);
+            chunklen += chunk.length;
+        }
+    });
+
+    req.once('error', err => callback(err));
+
+    req.once('end', () => {
+        let res = Buffer.concat(chunks, chunklen);
+        let data;
+        let err;
+        try {
+            data = JSON.parse(res.toString());
+        } catch (E) {
+            err = E;
+        }
+        if (err) {
+            return callback(err);
+        }
+        if (data.status !== 'success' || data.error) {
+            return callback(new Error(data.error || 'Request failed'));
+        }
+        delete data.status;
+        testAccount = data;
+        callback(null, testAccount);
+    });
+
+    return promise;
+};
+
+module.exports.getTestMessageUrl = function (info) {
+    if (!info || !info.response) {
+        return false;
+    }
+
+    let infoProps = new Map();
+    info.response.replace(/\[([^\]]+)\]$/, (m, props) => {
+        props.replace(/\b([A-Z0-9]+)=([^\s]+)/g, (m, key, value) => {
+            infoProps.set(key, value);
+        });
+    });
+
+    if (infoProps.has('STATUS') && infoProps.has('MSGID')) {
+        return (testAccount.web || ETHEREAL_WEB) + '/message/' + infoProps.get('MSGID');
+    }
+
+    return false;
+};
diff --git a/backend/node_modules/nodemailer/lib/punycode/index.js b/backend/node_modules/nodemailer/lib/punycode/index.js
new file mode 100644
index 0000000..cd3e494
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/punycode/index.js
@@ -0,0 +1,460 @@
+/*
+
+Copied from https://github.com/mathiasbynens/punycode.js/blob/ef3505c8abb5143a00d53ce59077c9f7f4b2ac47/punycode.js
+
+Copyright Mathias Bynens <https://mathiasbynens.be/>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+*/
+/* eslint callback-return: 0, no-bitwise: 0, eqeqeq: 0, prefer-arrow-callback: 0, object-shorthand: 0 */
+
+'use strict';
+
+/** Highest positive signed 32-bit float value */
+const maxInt = 2147483647; // aka. 0x7FFFFFFF or 2^31-1
+
+/** Bootstring parameters */
+const base = 36;
+const tMin = 1;
+const tMax = 26;
+const skew = 38;
+const damp = 700;
+const initialBias = 72;
+const initialN = 128; // 0x80
+const delimiter = '-'; // '\x2D'
+
+/** Regular expressions */
+const regexPunycode = /^xn--/;
+const regexNonASCII = /[^\0-\x7F]/; // Note: U+007F DEL is excluded too.
+const regexSeparators = /[\x2E\u3002\uFF0E\uFF61]/g; // RFC 3490 separators
+
+/** Error messages */
+const errors = {
+    overflow: 'Overflow: input needs wider integers to process',
+    'not-basic': 'Illegal input >= 0x80 (not a basic code point)',
+    'invalid-input': 'Invalid input'
+};
+
+/** Convenience shortcuts */
+const baseMinusTMin = base - tMin;
+const floor = Math.floor;
+const stringFromCharCode = String.fromCharCode;
+
+/*--------------------------------------------------------------------------*/
+
+/**
+ * A generic error utility function.
+ * @private
+ * @param {String} type The error type.
+ * @returns {Error} Throws a `RangeError` with the applicable error message.
+ */
+function error(type) {
+    throw new RangeError(errors[type]);
+}
+
+/**
+ * A generic `Array#map` utility function.
+ * @private
+ * @param {Array} array The array to iterate over.
+ * @param {Function} callback The function that gets called for every array
+ * item.
+ * @returns {Array} A new array of values returned by the callback function.
+ */
+function map(array, callback) {
+    const result = [];
+    let length = array.length;
+    while (length--) {
+        result[length] = callback(array[length]);
+    }
+    return result;
+}
+
+/**
+ * A simple `Array#map`-like wrapper to work with domain name strings or email
+ * addresses.
+ * @private
+ * @param {String} domain The domain name or email address.
+ * @param {Function} callback The function that gets called for every
+ * character.
+ * @returns {String} A new string of characters returned by the callback
+ * function.
+ */
+function mapDomain(domain, callback) {
+    const parts = domain.split('@');
+    let result = '';
+    if (parts.length > 1) {
+        // In email addresses, only the domain name should be punycoded. Leave
+        // the local part (i.e. everything up to `@`) intact.
+        result = parts[0] + '@';
+        domain = parts[1];
+    }
+    // Avoid `split(regex)` for IE8 compatibility. See #17.
+    domain = domain.replace(regexSeparators, '\x2E');
+    const labels = domain.split('.');
+    const encoded = map(labels, callback).join('.');
+    return result + encoded;
+}
+
+/**
+ * Creates an array containing the numeric code points of each Unicode
+ * character in the string. While JavaScript uses UCS-2 internally,
+ * this function will convert a pair of surrogate halves (each of which
+ * UCS-2 exposes as separate characters) into a single code point,
+ * matching UTF-16.
+ * @see `punycode.ucs2.encode`
+ * @see <https://mathiasbynens.be/notes/javascript-encoding>
+ * @memberOf punycode.ucs2
+ * @name decode
+ * @param {String} string The Unicode input string (UCS-2).
+ * @returns {Array} The new array of code points.
+ */
+function ucs2decode(string) {
+    const output = [];
+    let counter = 0;
+    const length = string.length;
+    while (counter < length) {
+        const value = string.charCodeAt(counter++);
+        if (value >= 0xd800 && value <= 0xdbff && counter < length) {
+            // It's a high surrogate, and there is a next character.
+            const extra = string.charCodeAt(counter++);
+            if ((extra & 0xfc00) == 0xdc00) {
+                // Low surrogate.
+                output.push(((value & 0x3ff) << 10) + (extra & 0x3ff) + 0x10000);
+            } else {
+                // It's an unmatched surrogate; only append this code unit, in case the
+                // next code unit is the high surrogate of a surrogate pair.
+                output.push(value);
+                counter--;
+            }
+        } else {
+            output.push(value);
+        }
+    }
+    return output;
+}
+
+/**
+ * Creates a string based on an array of numeric code points.
+ * @see `punycode.ucs2.decode`
+ * @memberOf punycode.ucs2
+ * @name encode
+ * @param {Array} codePoints The array of numeric code points.
+ * @returns {String} The new Unicode string (UCS-2).
+ */
+const ucs2encode = codePoints => String.fromCodePoint(...codePoints);
+
+/**
+ * Converts a basic code point into a digit/integer.
+ * @see `digitToBasic()`
+ * @private
+ * @param {Number} codePoint The basic numeric code point value.
+ * @returns {Number} The numeric value of a basic code point (for use in
+ * representing integers) in the range `0` to `base - 1`, or `base` if
+ * the code point does not represent a value.
+ */
+const basicToDigit = function (codePoint) {
+    if (codePoint >= 0x30 && codePoint < 0x3a) {
+        return 26 + (codePoint - 0x30);
+    }
+    if (codePoint >= 0x41 && codePoint < 0x5b) {
+        return codePoint - 0x41;
+    }
+    if (codePoint >= 0x61 && codePoint < 0x7b) {
+        return codePoint - 0x61;
+    }
+    return base;
+};
+
+/**
+ * Converts a digit/integer into a basic code point.
+ * @see `basicToDigit()`
+ * @private
+ * @param {Number} digit The numeric value of a basic code point.
+ * @returns {Number} The basic code point whose value (when used for
+ * representing integers) is `digit`, which needs to be in the range
+ * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is
+ * used; else, the lowercase form is used. The behavior is undefined
+ * if `flag` is non-zero and `digit` has no uppercase form.
+ */
+const digitToBasic = function (digit, flag) {
+    //  0..25 map to ASCII a..z or A..Z
+    // 26..35 map to ASCII 0..9
+    return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5);
+};
+
+/**
+ * Bias adaptation function as per section 3.4 of RFC 3492.
+ * https://tools.ietf.org/html/rfc3492#section-3.4
+ * @private
+ */
+const adapt = function (delta, numPoints, firstTime) {
+    let k = 0;
+    delta = firstTime ? floor(delta / damp) : delta >> 1;
+    delta += floor(delta / numPoints);
+    for (; /* no initialization */ delta > (baseMinusTMin * tMax) >> 1; k += base) {
+        delta = floor(delta / baseMinusTMin);
+    }
+    return floor(k + ((baseMinusTMin + 1) * delta) / (delta + skew));
+};
+
+/**
+ * Converts a Punycode string of ASCII-only symbols to a string of Unicode
+ * symbols.
+ * @memberOf punycode
+ * @param {String} input The Punycode string of ASCII-only symbols.
+ * @returns {String} The resulting string of Unicode symbols.
+ */
+const decode = function (input) {
+    // Don't use UCS-2.
+    const output = [];
+    const inputLength = input.length;
+    let i = 0;
+    let n = initialN;
+    let bias = initialBias;
+
+    // Handle the basic code points: let `basic` be the number of input code
+    // points before the last delimiter, or `0` if there is none, then copy
+    // the first basic code points to the output.
+
+    let basic = input.lastIndexOf(delimiter);
+    if (basic < 0) {
+        basic = 0;
+    }
+
+    for (let j = 0; j < basic; ++j) {
+        // if it's not a basic code point
+        if (input.charCodeAt(j) >= 0x80) {
+            error('not-basic');
+        }
+        output.push(input.charCodeAt(j));
+    }
+
+    // Main decoding loop: start just after the last delimiter if any basic code
+    // points were copied; start at the beginning otherwise.
+
+    for (let index = basic > 0 ? basic + 1 : 0; index < inputLength /* no final expression */; ) {
+        // `index` is the index of the next character to be consumed.
+        // Decode a generalized variable-length integer into `delta`,
+        // which gets added to `i`. The overflow checking is easier
+        // if we increase `i` as we go, then subtract off its starting
+        // value at the end to obtain `delta`.
+        const oldi = i;
+        for (let w = 1, k = base /* no condition */; ; k += base) {
+            if (index >= inputLength) {
+                error('invalid-input');
+            }
+
+            const digit = basicToDigit(input.charCodeAt(index++));
+
+            if (digit >= base) {
+                error('invalid-input');
+            }
+            if (digit > floor((maxInt - i) / w)) {
+                error('overflow');
+            }
+
+            i += digit * w;
+            const t = k <= bias ? tMin : k >= bias + tMax ? tMax : k - bias;
+
+            if (digit < t) {
+                break;
+            }
+
+            const baseMinusT = base - t;
+            if (w > floor(maxInt / baseMinusT)) {
+                error('overflow');
+            }
+
+            w *= baseMinusT;
+        }
+
+        const out = output.length + 1;
+        bias = adapt(i - oldi, out, oldi == 0);
+
+        // `i` was supposed to wrap around from `out` to `0`,
+        // incrementing `n` each time, so we'll fix that now:
+        if (floor(i / out) > maxInt - n) {
+            error('overflow');
+        }
+
+        n += floor(i / out);
+        i %= out;
+
+        // Insert `n` at position `i` of the output.
+        output.splice(i++, 0, n);
+    }
+
+    return String.fromCodePoint(...output);
+};
+
+/**
+ * Converts a string of Unicode symbols (e.g. a domain name label) to a
+ * Punycode string of ASCII-only symbols.
+ * @memberOf punycode
+ * @param {String} input The string of Unicode symbols.
+ * @returns {String} The resulting Punycode string of ASCII-only symbols.
+ */
+const encode = function (input) {
+    const output = [];
+
+    // Convert the input in UCS-2 to an array of Unicode code points.
+    input = ucs2decode(input);
+
+    // Cache the length.
+    const inputLength = input.length;
+
+    // Initialize the state.
+    let n = initialN;
+    let delta = 0;
+    let bias = initialBias;
+
+    // Handle the basic code points.
+    for (const currentValue of input) {
+        if (currentValue < 0x80) {
+            output.push(stringFromCharCode(currentValue));
+        }
+    }
+
+    const basicLength = output.length;
+    let handledCPCount = basicLength;
+
+    // `handledCPCount` is the number of code points that have been handled;
+    // `basicLength` is the number of basic code points.
+
+    // Finish the basic string with a delimiter unless it's empty.
+    if (basicLength) {
+        output.push(delimiter);
+    }
+
+    // Main encoding loop:
+    while (handledCPCount < inputLength) {
+        // All non-basic code points < n have been handled already. Find the next
+        // larger one:
+        let m = maxInt;
+        for (const currentValue of input) {
+            if (currentValue >= n && currentValue < m) {
+                m = currentValue;
+            }
+        }
+
+        // Increase `delta` enough to advance the decoder's <n,i> state to <m,0>,
+        // but guard against overflow.
+        const handledCPCountPlusOne = handledCPCount + 1;
+        if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) {
+            error('overflow');
+        }
+
+        delta += (m - n) * handledCPCountPlusOne;
+        n = m;
+
+        for (const currentValue of input) {
+            if (currentValue < n && ++delta > maxInt) {
+                error('overflow');
+            }
+            if (currentValue === n) {
+                // Represent delta as a generalized variable-length integer.
+                let q = delta;
+                for (let k = base /* no condition */; ; k += base) {
+                    const t = k <= bias ? tMin : k >= bias + tMax ? tMax : k - bias;
+                    if (q < t) {
+                        break;
+                    }
+                    const qMinusT = q - t;
+                    const baseMinusT = base - t;
+                    output.push(stringFromCharCode(digitToBasic(t + (qMinusT % baseMinusT), 0)));
+                    q = floor(qMinusT / baseMinusT);
+                }
+
+                output.push(stringFromCharCode(digitToBasic(q, 0)));
+                bias = adapt(delta, handledCPCountPlusOne, handledCPCount === basicLength);
+                delta = 0;
+                ++handledCPCount;
+            }
+        }
+
+        ++delta;
+        ++n;
+    }
+    return output.join('');
+};
+
+/**
+ * Converts a Punycode string representing a domain name or an email address
+ * to Unicode. Only the Punycoded parts of the input will be converted, i.e.
+ * it doesn't matter if you call it on a string that has already been
+ * converted to Unicode.
+ * @memberOf punycode
+ * @param {String} input The Punycoded domain name or email address to
+ * convert to Unicode.
+ * @returns {String} The Unicode representation of the given Punycode
+ * string.
+ */
+const toUnicode = function (input) {
+    return mapDomain(input, function (string) {
+        return regexPunycode.test(string) ? decode(string.slice(4).toLowerCase()) : string;
+    });
+};
+
+/**
+ * Converts a Unicode string representing a domain name or an email address to
+ * Punycode. Only the non-ASCII parts of the domain name will be converted,
+ * i.e. it doesn't matter if you call it with a domain that's already in
+ * ASCII.
+ * @memberOf punycode
+ * @param {String} input The domain name or email address to convert, as a
+ * Unicode string.
+ * @returns {String} The Punycode representation of the given domain name or
+ * email address.
+ */
+const toASCII = function (input) {
+    return mapDomain(input, function (string) {
+        return regexNonASCII.test(string) ? 'xn--' + encode(string) : string;
+    });
+};
+
+/*--------------------------------------------------------------------------*/
+
+/** Define the public API */
+const punycode = {
+    /**
+     * A string representing the current Punycode.js version number.
+     * @memberOf punycode
+     * @type String
+     */
+    version: '2.3.1',
+    /**
+     * An object of methods to convert from JavaScript's internal character
+     * representation (UCS-2) to Unicode code points, and back.
+     * @see <https://mathiasbynens.be/notes/javascript-encoding>
+     * @memberOf punycode
+     * @type Object
+     */
+    ucs2: {
+        decode: ucs2decode,
+        encode: ucs2encode
+    },
+    decode: decode,
+    encode: encode,
+    toASCII: toASCII,
+    toUnicode: toUnicode
+};
+
+module.exports = punycode;
diff --git a/backend/node_modules/nodemailer/lib/qp/index.js b/backend/node_modules/nodemailer/lib/qp/index.js
new file mode 100644
index 0000000..6bf6f08
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/qp/index.js
@@ -0,0 +1,219 @@
+'use strict';
+
+const Transform = require('stream').Transform;
+
+/**
+ * Encodes a Buffer into a Quoted-Printable encoded string
+ *
+ * @param {Buffer} buffer Buffer to convert
+ * @returns {String} Quoted-Printable encoded string
+ */
+function encode(buffer) {
+    if (typeof buffer === 'string') {
+        buffer = Buffer.from(buffer, 'utf-8');
+    }
+
+    // usable characters that do not need encoding
+    let ranges = [
+        // https://tools.ietf.org/html/rfc2045#section-6.7
+        [0x09], // <TAB>
+        [0x0a], // <LF>
+        [0x0d], // <CR>
+        [0x20, 0x3c], // <SP>!"#$%&'()*+,-./0123456789:;
+        [0x3e, 0x7e] // >?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}
+    ];
+    let result = '';
+    let ord;
+
+    for (let i = 0, len = buffer.length; i < len; i++) {
+        ord = buffer[i];
+        // if the char is in allowed range, then keep as is, unless it is a WS in the end of a line
+        if (checkRanges(ord, ranges) && !((ord === 0x20 || ord === 0x09) && (i === len - 1 || buffer[i + 1] === 0x0a || buffer[i + 1] === 0x0d))) {
+            result += String.fromCharCode(ord);
+            continue;
+        }
+        result += '=' + (ord < 0x10 ? '0' : '') + ord.toString(16).toUpperCase();
+    }
+
+    return result;
+}
+
+/**
+ * Adds soft line breaks to a Quoted-Printable string
+ *
+ * @param {String} str Quoted-Printable encoded string that might need line wrapping
+ * @param {Number} [lineLength=76] Maximum allowed length for a line
+ * @returns {String} Soft-wrapped Quoted-Printable encoded string
+ */
+function wrap(str, lineLength) {
+    str = (str || '').toString();
+    lineLength = lineLength || 76;
+
+    if (str.length <= lineLength) {
+        return str;
+    }
+
+    let pos = 0;
+    let len = str.length;
+    let match, code, line;
+    let lineMargin = Math.floor(lineLength / 3);
+    let result = '';
+
+    // insert soft linebreaks where needed
+    while (pos < len) {
+        line = str.substr(pos, lineLength);
+        if ((match = line.match(/\r\n/))) {
+            line = line.substr(0, match.index + match[0].length);
+            result += line;
+            pos += line.length;
+            continue;
+        }
+
+        if (line.substr(-1) === '\n') {
+            // nothing to change here
+            result += line;
+            pos += line.length;
+            continue;
+        } else if ((match = line.substr(-lineMargin).match(/\n.*?$/))) {
+            // truncate to nearest line break
+            line = line.substr(0, line.length - (match[0].length - 1));
+            result += line;
+            pos += line.length;
+            continue;
+        } else if (line.length > lineLength - lineMargin && (match = line.substr(-lineMargin).match(/[ \t.,!?][^ \t.,!?]*$/))) {
+            // truncate to nearest space
+            line = line.substr(0, line.length - (match[0].length - 1));
+        } else if (line.match(/[=][\da-f]{0,2}$/i)) {
+            // push incomplete encoding sequences to the next line
+            if ((match = line.match(/[=][\da-f]{0,1}$/i))) {
+                line = line.substr(0, line.length - match[0].length);
+            }
+
+            // ensure that utf-8 sequences are not split
+            while (line.length > 3 && line.length < len - pos && !line.match(/^(?:=[\da-f]{2}){1,4}$/i) && (match = line.match(/[=][\da-f]{2}$/gi))) {
+                code = parseInt(match[0].substr(1, 2), 16);
+                if (code < 128) {
+                    break;
+                }
+
+                line = line.substr(0, line.length - 3);
+
+                if (code >= 0xc0) {
+                    break;
+                }
+            }
+        }
+
+        if (pos + line.length < len && line.substr(-1) !== '\n') {
+            if (line.length === lineLength && line.match(/[=][\da-f]{2}$/i)) {
+                line = line.substr(0, line.length - 3);
+            } else if (line.length === lineLength) {
+                line = line.substr(0, line.length - 1);
+            }
+            pos += line.length;
+            line += '=\r\n';
+        } else {
+            pos += line.length;
+        }
+
+        result += line;
+    }
+
+    return result;
+}
+
+/**
+ * Helper function to check if a number is inside provided ranges
+ *
+ * @param {Number} nr Number to check for
+ * @param {Array} ranges An Array of allowed values
+ * @returns {Boolean} True if the value was found inside allowed ranges, false otherwise
+ */
+function checkRanges(nr, ranges) {
+    for (let i = ranges.length - 1; i >= 0; i--) {
+        if (!ranges[i].length) {
+            continue;
+        }
+        if (ranges[i].length === 1 && nr === ranges[i][0]) {
+            return true;
+        }
+        if (ranges[i].length === 2 && nr >= ranges[i][0] && nr <= ranges[i][1]) {
+            return true;
+        }
+    }
+    return false;
+}
+
+/**
+ * Creates a transform stream for encoding data to Quoted-Printable encoding
+ *
+ * @constructor
+ * @param {Object} options Stream options
+ * @param {Number} [options.lineLength=76] Maximum length for lines, set to false to disable wrapping
+ */
+class Encoder extends Transform {
+    constructor(options) {
+        super();
+
+        // init Transform
+        this.options = options || {};
+
+        if (this.options.lineLength !== false) {
+            this.options.lineLength = this.options.lineLength || 76;
+        }
+
+        this._curLine = '';
+
+        this.inputBytes = 0;
+        this.outputBytes = 0;
+    }
+
+    _transform(chunk, encoding, done) {
+        let qp;
+
+        if (encoding !== 'buffer') {
+            chunk = Buffer.from(chunk, encoding);
+        }
+
+        if (!chunk || !chunk.length) {
+            return done();
+        }
+
+        this.inputBytes += chunk.length;
+
+        if (this.options.lineLength) {
+            qp = this._curLine + encode(chunk);
+            qp = wrap(qp, this.options.lineLength);
+            qp = qp.replace(/(^|\n)([^\n]*)$/, (match, lineBreak, lastLine) => {
+                this._curLine = lastLine;
+                return lineBreak;
+            });
+
+            if (qp) {
+                this.outputBytes += qp.length;
+                this.push(qp);
+            }
+        } else {
+            qp = encode(chunk);
+            this.outputBytes += qp.length;
+            this.push(qp, 'ascii');
+        }
+
+        done();
+    }
+
+    _flush(done) {
+        if (this._curLine) {
+            this.outputBytes += this._curLine.length;
+            this.push(this._curLine, 'ascii');
+        }
+        done();
+    }
+}
+
+// expose to the world
+module.exports = {
+    encode,
+    wrap,
+    Encoder
+};
diff --git a/backend/node_modules/nodemailer/lib/sendmail-transport/index.js b/backend/node_modules/nodemailer/lib/sendmail-transport/index.js
new file mode 100644
index 0000000..b1cc13b
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/sendmail-transport/index.js
@@ -0,0 +1,210 @@
+'use strict';
+
+const spawn = require('child_process').spawn;
+const packageData = require('../../package.json');
+const shared = require('../shared');
+
+/**
+ * Generates a Transport object for Sendmail
+ *
+ * Possible options can be the following:
+ *
+ *  * **path** optional path to sendmail binary
+ *  * **newline** either 'windows' or 'unix'
+ *  * **args** an array of arguments for the sendmail binary
+ *
+ * @constructor
+ * @param {Object} optional config parameter for Sendmail
+ */
+class SendmailTransport {
+    constructor(options) {
+        options = options || {};
+
+        // use a reference to spawn for mocking purposes
+        this._spawn = spawn;
+
+        this.options = options || {};
+
+        this.name = 'Sendmail';
+        this.version = packageData.version;
+
+        this.path = 'sendmail';
+        this.args = false;
+        this.winbreak = false;
+
+        this.logger = shared.getLogger(this.options, {
+            component: this.options.component || 'sendmail'
+        });
+
+        if (options) {
+            if (typeof options === 'string') {
+                this.path = options;
+            } else if (typeof options === 'object') {
+                if (options.path) {
+                    this.path = options.path;
+                }
+                if (Array.isArray(options.args)) {
+                    this.args = options.args;
+                }
+                this.winbreak = ['win', 'windows', 'dos', '\r\n'].includes((options.newline || '').toString().toLowerCase());
+            }
+        }
+    }
+
+    /**
+     * <p>Compiles a mailcomposer message and forwards it to handler that sends it.</p>
+     *
+     * @param {Object} emailMessage MailComposer object
+     * @param {Function} callback Callback function to run when the sending is completed
+     */
+    send(mail, done) {
+        // Sendmail strips this header line by itself
+        mail.message.keepBcc = true;
+
+        let envelope = mail.data.envelope || mail.message.getEnvelope();
+        let messageId = mail.message.messageId();
+        let args;
+        let sendmail;
+        let returned;
+
+        const hasInvalidAddresses = []
+            .concat(envelope.from || [])
+            .concat(envelope.to || [])
+            .some(addr => /^-/.test(addr));
+        if (hasInvalidAddresses) {
+            return done(new Error('Can not send mail. Invalid envelope addresses.'));
+        }
+
+        if (this.args) {
+            // force -i to keep single dots
+            args = ['-i'].concat(this.args).concat(envelope.to);
+        } else {
+            args = ['-i'].concat(envelope.from ? ['-f', envelope.from] : []).concat(envelope.to);
+        }
+
+        let callback = err => {
+            if (returned) {
+                // ignore any additional responses, already done
+                return;
+            }
+            returned = true;
+            if (typeof done === 'function') {
+                if (err) {
+                    return done(err);
+                } else {
+                    return done(null, {
+                        envelope: mail.data.envelope || mail.message.getEnvelope(),
+                        messageId,
+                        response: 'Messages queued for delivery'
+                    });
+                }
+            }
+        };
+
+        try {
+            sendmail = this._spawn(this.path, args);
+        } catch (E) {
+            this.logger.error(
+                {
+                    err: E,
+                    tnx: 'spawn',
+                    messageId
+                },
+                'Error occurred while spawning sendmail. %s',
+                E.message
+            );
+            return callback(E);
+        }
+
+        if (sendmail) {
+            sendmail.on('error', err => {
+                this.logger.error(
+                    {
+                        err,
+                        tnx: 'spawn',
+                        messageId
+                    },
+                    'Error occurred when sending message %s. %s',
+                    messageId,
+                    err.message
+                );
+                callback(err);
+            });
+
+            sendmail.once('exit', code => {
+                if (!code) {
+                    return callback();
+                }
+                let err;
+                if (code === 127) {
+                    err = new Error('Sendmail command not found, process exited with code ' + code);
+                } else {
+                    err = new Error('Sendmail exited with code ' + code);
+                }
+
+                this.logger.error(
+                    {
+                        err,
+                        tnx: 'stdin',
+                        messageId
+                    },
+                    'Error sending message %s to sendmail. %s',
+                    messageId,
+                    err.message
+                );
+                callback(err);
+            });
+            sendmail.once('close', callback);
+
+            sendmail.stdin.on('error', err => {
+                this.logger.error(
+                    {
+                        err,
+                        tnx: 'stdin',
+                        messageId
+                    },
+                    'Error occurred when piping message %s to sendmail. %s',
+                    messageId,
+                    err.message
+                );
+                callback(err);
+            });
+
+            let recipients = [].concat(envelope.to || []);
+            if (recipients.length > 3) {
+                recipients.push('...and ' + recipients.splice(2).length + ' more');
+            }
+            this.logger.info(
+                {
+                    tnx: 'send',
+                    messageId
+                },
+                'Sending message %s to <%s>',
+                messageId,
+                recipients.join(', ')
+            );
+
+            let sourceStream = mail.message.createReadStream();
+            sourceStream.once('error', err => {
+                this.logger.error(
+                    {
+                        err,
+                        tnx: 'stdin',
+                        messageId
+                    },
+                    'Error occurred when generating message %s. %s',
+                    messageId,
+                    err.message
+                );
+                sendmail.kill('SIGINT'); // do not deliver the message
+                callback(err);
+            });
+
+            sourceStream.pipe(sendmail.stdin);
+        } else {
+            return callback(new Error('sendmail was not found'));
+        }
+    }
+}
+
+module.exports = SendmailTransport;
diff --git a/backend/node_modules/nodemailer/lib/ses-transport/index.js b/backend/node_modules/nodemailer/lib/ses-transport/index.js
new file mode 100644
index 0000000..6646a4a
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/ses-transport/index.js
@@ -0,0 +1,349 @@
+'use strict';
+
+const EventEmitter = require('events');
+const packageData = require('../../package.json');
+const shared = require('../shared');
+const LeWindows = require('../mime-node/le-windows');
+
+/**
+ * Generates a Transport object for AWS SES
+ *
+ * Possible options can be the following:
+ *
+ *  * **sendingRate** optional Number specifying how many messages per second should be delivered to SES
+ *  * **maxConnections** optional Number specifying max number of parallel connections to SES
+ *
+ * @constructor
+ * @param {Object} optional config parameter
+ */
+class SESTransport extends EventEmitter {
+    constructor(options) {
+        super();
+        options = options || {};
+
+        this.options = options || {};
+        this.ses = this.options.SES;
+
+        this.name = 'SESTransport';
+        this.version = packageData.version;
+
+        this.logger = shared.getLogger(this.options, {
+            component: this.options.component || 'ses-transport'
+        });
+
+        // parallel sending connections
+        this.maxConnections = Number(this.options.maxConnections) || Infinity;
+        this.connections = 0;
+
+        // max messages per second
+        this.sendingRate = Number(this.options.sendingRate) || Infinity;
+        this.sendingRateTTL = null;
+        this.rateInterval = 1000; // milliseconds
+        this.rateMessages = [];
+
+        this.pending = [];
+
+        this.idling = true;
+
+        setImmediate(() => {
+            if (this.idling) {
+                this.emit('idle');
+            }
+        });
+    }
+
+    /**
+     * Schedules a sending of a message
+     *
+     * @param {Object} emailMessage MailComposer object
+     * @param {Function} callback Callback function to run when the sending is completed
+     */
+    send(mail, callback) {
+        if (this.connections >= this.maxConnections) {
+            this.idling = false;
+            return this.pending.push({
+                mail,
+                callback
+            });
+        }
+
+        if (!this._checkSendingRate()) {
+            this.idling = false;
+            return this.pending.push({
+                mail,
+                callback
+            });
+        }
+
+        this._send(mail, (...args) => {
+            setImmediate(() => callback(...args));
+            this._sent();
+        });
+    }
+
+    _checkRatedQueue() {
+        if (this.connections >= this.maxConnections || !this._checkSendingRate()) {
+            return;
+        }
+
+        if (!this.pending.length) {
+            if (!this.idling) {
+                this.idling = true;
+                this.emit('idle');
+            }
+            return;
+        }
+
+        let next = this.pending.shift();
+        this._send(next.mail, (...args) => {
+            setImmediate(() => next.callback(...args));
+            this._sent();
+        });
+    }
+
+    _checkSendingRate() {
+        clearTimeout(this.sendingRateTTL);
+
+        let now = Date.now();
+        let oldest = false;
+        // delete older messages
+        for (let i = this.rateMessages.length - 1; i >= 0; i--) {
+            if (this.rateMessages[i].ts >= now - this.rateInterval && (!oldest || this.rateMessages[i].ts < oldest)) {
+                oldest = this.rateMessages[i].ts;
+            }
+
+            if (this.rateMessages[i].ts < now - this.rateInterval && !this.rateMessages[i].pending) {
+                this.rateMessages.splice(i, 1);
+            }
+        }
+
+        if (this.rateMessages.length < this.sendingRate) {
+            return true;
+        }
+
+        let delay = Math.max(oldest + 1001, now + 20);
+        this.sendingRateTTL = setTimeout(() => this._checkRatedQueue(), now - delay);
+
+        try {
+            this.sendingRateTTL.unref();
+        } catch (E) {
+            // Ignore. Happens on envs with non-node timer implementation
+        }
+
+        return false;
+    }
+
+    _sent() {
+        this.connections--;
+        this._checkRatedQueue();
+    }
+
+    /**
+     * Returns true if there are free slots in the queue
+     */
+    isIdle() {
+        return this.idling;
+    }
+
+    /**
+     * Compiles a mailcomposer message and forwards it to SES
+     *
+     * @param {Object} emailMessage MailComposer object
+     * @param {Function} callback Callback function to run when the sending is completed
+     */
+    _send(mail, callback) {
+        let statObject = {
+            ts: Date.now(),
+            pending: true
+        };
+        this.connections++;
+        this.rateMessages.push(statObject);
+
+        let envelope = mail.data.envelope || mail.message.getEnvelope();
+        let messageId = mail.message.messageId();
+
+        let recipients = [].concat(envelope.to || []);
+        if (recipients.length > 3) {
+            recipients.push('...and ' + recipients.splice(2).length + ' more');
+        }
+        this.logger.info(
+            {
+                tnx: 'send',
+                messageId
+            },
+            'Sending message %s to <%s>',
+            messageId,
+            recipients.join(', ')
+        );
+
+        let getRawMessage = next => {
+            // do not use Message-ID and Date in DKIM signature
+            if (!mail.data._dkim) {
+                mail.data._dkim = {};
+            }
+            if (mail.data._dkim.skipFields && typeof mail.data._dkim.skipFields === 'string') {
+                mail.data._dkim.skipFields += ':date:message-id';
+            } else {
+                mail.data._dkim.skipFields = 'date:message-id';
+            }
+
+            let sourceStream = mail.message.createReadStream();
+            let stream = sourceStream.pipe(new LeWindows());
+            let chunks = [];
+            let chunklen = 0;
+
+            stream.on('readable', () => {
+                let chunk;
+                while ((chunk = stream.read()) !== null) {
+                    chunks.push(chunk);
+                    chunklen += chunk.length;
+                }
+            });
+
+            sourceStream.once('error', err => stream.emit('error', err));
+
+            stream.once('error', err => {
+                next(err);
+            });
+
+            stream.once('end', () => next(null, Buffer.concat(chunks, chunklen)));
+        };
+
+        setImmediate(() =>
+            getRawMessage((err, raw) => {
+                if (err) {
+                    this.logger.error(
+                        {
+                            err,
+                            tnx: 'send',
+                            messageId
+                        },
+                        'Failed creating message for %s. %s',
+                        messageId,
+                        err.message
+                    );
+                    statObject.pending = false;
+                    return callback(err);
+                }
+
+                let sesMessage = {
+                    RawMessage: {
+                        // required
+                        Data: raw // required
+                    },
+                    Source: envelope.from,
+                    Destinations: envelope.to
+                };
+
+                Object.keys(mail.data.ses || {}).forEach(key => {
+                    sesMessage[key] = mail.data.ses[key];
+                });
+
+                let ses = (this.ses.aws ? this.ses.ses : this.ses) || {};
+                let aws = this.ses.aws || {};
+
+                let getRegion = cb => {
+                    if (ses.config && typeof ses.config.region === 'function') {
+                        // promise
+                        return ses.config
+                            .region()
+                            .then(region => cb(null, region))
+                            .catch(err => cb(err));
+                    }
+                    return cb(null, (ses.config && ses.config.region) || 'us-east-1');
+                };
+
+                getRegion((err, region) => {
+                    if (err || !region) {
+                        region = 'us-east-1';
+                    }
+
+                    let sendPromise;
+                    if (typeof ses.send === 'function' && aws.SendRawEmailCommand) {
+                        // v3 API
+                        sendPromise = ses.send(new aws.SendRawEmailCommand(sesMessage));
+                    } else {
+                        // v2 API
+                        sendPromise = ses.sendRawEmail(sesMessage).promise();
+                    }
+
+                    sendPromise
+                        .then(data => {
+                            if (region === 'us-east-1') {
+                                region = 'email';
+                            }
+
+                            statObject.pending = false;
+                            callback(null, {
+                                envelope: {
+                                    from: envelope.from,
+                                    to: envelope.to
+                                },
+                                messageId: '<' + data.MessageId + (!/@/.test(data.MessageId) ? '@' + region + '.amazonses.com' : '') + '>',
+                                response: data.MessageId,
+                                raw
+                            });
+                        })
+                        .catch(err => {
+                            this.logger.error(
+                                {
+                                    err,
+                                    tnx: 'send'
+                                },
+                                'Send error for %s: %s',
+                                messageId,
+                                err.message
+                            );
+                            statObject.pending = false;
+                            callback(err);
+                        });
+                });
+            })
+        );
+    }
+
+    /**
+     * Verifies SES configuration
+     *
+     * @param {Function} callback Callback function
+     */
+    verify(callback) {
+        let promise;
+        let ses = (this.ses.aws ? this.ses.ses : this.ses) || {};
+        let aws = this.ses.aws || {};
+
+        const sesMessage = {
+            RawMessage: {
+                // required
+                Data: 'From: invalid@invalid\r\nTo: invalid@invalid\r\n Subject: Invalid\r\n\r\nInvalid'
+            },
+            Source: 'invalid@invalid',
+            Destinations: ['invalid@invalid']
+        };
+
+        if (!callback) {
+            promise = new Promise((resolve, reject) => {
+                callback = shared.callbackPromise(resolve, reject);
+            });
+        }
+        const cb = err => {
+            if (err && (err.code || err.Code) !== 'InvalidParameterValue') {
+                return callback(err);
+            }
+            return callback(null, true);
+        };
+
+        if (typeof ses.send === 'function' && aws.SendRawEmailCommand) {
+            // v3 API
+            sesMessage.RawMessage.Data = Buffer.from(sesMessage.RawMessage.Data);
+            ses.send(new aws.SendRawEmailCommand(sesMessage), cb);
+        } else {
+            // v2 API
+            ses.sendRawEmail(sesMessage, cb);
+        }
+
+        return promise;
+    }
+}
+
+module.exports = SESTransport;
diff --git a/backend/node_modules/nodemailer/lib/shared/index.js b/backend/node_modules/nodemailer/lib/shared/index.js
new file mode 100644
index 0000000..4c16a37
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/shared/index.js
@@ -0,0 +1,688 @@
+/* eslint no-console: 0 */
+
+'use strict';
+
+const urllib = require('url');
+const util = require('util');
+const fs = require('fs');
+const nmfetch = require('../fetch');
+const dns = require('dns');
+const net = require('net');
+const os = require('os');
+
+const DNS_TTL = 5 * 60 * 1000;
+
+let networkInterfaces;
+try {
+    networkInterfaces = os.networkInterfaces();
+} catch (err) {
+    // fails on some systems
+}
+
+module.exports.networkInterfaces = networkInterfaces;
+
+const isFamilySupported = (family, allowInternal) => {
+    let networkInterfaces = module.exports.networkInterfaces;
+    if (!networkInterfaces) {
+        // hope for the best
+        return true;
+    }
+
+    const familySupported =
+        // crux that replaces Object.values(networkInterfaces) as Object.values is not supported in nodejs v6
+        Object.keys(networkInterfaces)
+            .map(key => networkInterfaces[key])
+            // crux that replaces .flat() as it is not supported in older Node versions (v10 and older)
+            .reduce((acc, val) => acc.concat(val), [])
+            .filter(i => !i.internal || allowInternal)
+            .filter(i => i.family === 'IPv' + family || i.family === family).length > 0;
+
+    return familySupported;
+};
+
+const resolver = (family, hostname, options, callback) => {
+    options = options || {};
+    const familySupported = isFamilySupported(family, options.allowInternalNetworkInterfaces);
+
+    if (!familySupported) {
+        return callback(null, []);
+    }
+
+    const resolver = dns.Resolver ? new dns.Resolver(options) : dns;
+    resolver['resolve' + family](hostname, (err, addresses) => {
+        if (err) {
+            switch (err.code) {
+                case dns.NODATA:
+                case dns.NOTFOUND:
+                case dns.NOTIMP:
+                case dns.SERVFAIL:
+                case dns.CONNREFUSED:
+                case dns.REFUSED:
+                case 'EAI_AGAIN':
+                    return callback(null, []);
+            }
+            return callback(err);
+        }
+        return callback(null, Array.isArray(addresses) ? addresses : [].concat(addresses || []));
+    });
+};
+
+const dnsCache = (module.exports.dnsCache = new Map());
+
+const formatDNSValue = (value, extra) => {
+    if (!value) {
+        return Object.assign({}, extra || {});
+    }
+
+    return Object.assign(
+        {
+            servername: value.servername,
+            host:
+                !value.addresses || !value.addresses.length
+                    ? null
+                    : value.addresses.length === 1
+                    ? value.addresses[0]
+                    : value.addresses[Math.floor(Math.random() * value.addresses.length)]
+        },
+        extra || {}
+    );
+};
+
+module.exports.resolveHostname = (options, callback) => {
+    options = options || {};
+
+    if (!options.host && options.servername) {
+        options.host = options.servername;
+    }
+
+    if (!options.host || net.isIP(options.host)) {
+        // nothing to do here
+        let value = {
+            addresses: [options.host],
+            servername: options.servername || false
+        };
+        return callback(
+            null,
+            formatDNSValue(value, {
+                cached: false
+            })
+        );
+    }
+
+    let cached;
+    if (dnsCache.has(options.host)) {
+        cached = dnsCache.get(options.host);
+
+        if (!cached.expires || cached.expires >= Date.now()) {
+            return callback(
+                null,
+                formatDNSValue(cached.value, {
+                    cached: true
+                })
+            );
+        }
+    }
+
+    resolver(4, options.host, options, (err, addresses) => {
+        if (err) {
+            if (cached) {
+                // ignore error, use expired value
+                return callback(
+                    null,
+                    formatDNSValue(cached.value, {
+                        cached: true,
+                        error: err
+                    })
+                );
+            }
+            return callback(err);
+        }
+
+        if (addresses && addresses.length) {
+            let value = {
+                addresses,
+                servername: options.servername || options.host
+            };
+
+            dnsCache.set(options.host, {
+                value,
+                expires: Date.now() + (options.dnsTtl || DNS_TTL)
+            });
+
+            return callback(
+                null,
+                formatDNSValue(value, {
+                    cached: false
+                })
+            );
+        }
+
+        resolver(6, options.host, options, (err, addresses) => {
+            if (err) {
+                if (cached) {
+                    // ignore error, use expired value
+                    return callback(
+                        null,
+                        formatDNSValue(cached.value, {
+                            cached: true,
+                            error: err
+                        })
+                    );
+                }
+                return callback(err);
+            }
+
+            if (addresses && addresses.length) {
+                let value = {
+                    addresses,
+                    servername: options.servername || options.host
+                };
+
+                dnsCache.set(options.host, {
+                    value,
+                    expires: Date.now() + (options.dnsTtl || DNS_TTL)
+                });
+
+                return callback(
+                    null,
+                    formatDNSValue(value, {
+                        cached: false
+                    })
+                );
+            }
+
+            try {
+                dns.lookup(options.host, { all: true }, (err, addresses) => {
+                    if (err) {
+                        if (cached) {
+                            // ignore error, use expired value
+                            return callback(
+                                null,
+                                formatDNSValue(cached.value, {
+                                    cached: true,
+                                    error: err
+                                })
+                            );
+                        }
+                        return callback(err);
+                    }
+
+                    let address = addresses
+                        ? addresses
+                              .filter(addr => isFamilySupported(addr.family))
+                              .map(addr => addr.address)
+                              .shift()
+                        : false;
+
+                    if (addresses && addresses.length && !address) {
+                        // there are addresses but none can be used
+                        console.warn(`Failed to resolve IPv${addresses[0].family} addresses with current network`);
+                    }
+
+                    if (!address && cached) {
+                        // nothing was found, fallback to cached value
+                        return callback(
+                            null,
+                            formatDNSValue(cached.value, {
+                                cached: true
+                            })
+                        );
+                    }
+
+                    let value = {
+                        addresses: address ? [address] : [options.host],
+                        servername: options.servername || options.host
+                    };
+
+                    dnsCache.set(options.host, {
+                        value,
+                        expires: Date.now() + (options.dnsTtl || DNS_TTL)
+                    });
+
+                    return callback(
+                        null,
+                        formatDNSValue(value, {
+                            cached: false
+                        })
+                    );
+                });
+            } catch (err) {
+                if (cached) {
+                    // ignore error, use expired value
+                    return callback(
+                        null,
+                        formatDNSValue(cached.value, {
+                            cached: true,
+                            error: err
+                        })
+                    );
+                }
+                return callback(err);
+            }
+        });
+    });
+};
+/**
+ * Parses connection url to a structured configuration object
+ *
+ * @param {String} str Connection url
+ * @return {Object} Configuration object
+ */
+module.exports.parseConnectionUrl = str => {
+    str = str || '';
+    let options = {};
+
+    [urllib.parse(str, true)].forEach(url => {
+        let auth;
+
+        switch (url.protocol) {
+            case 'smtp:':
+                options.secure = false;
+                break;
+            case 'smtps:':
+                options.secure = true;
+                break;
+            case 'direct:':
+                options.direct = true;
+                break;
+        }
+
+        if (!isNaN(url.port) && Number(url.port)) {
+            options.port = Number(url.port);
+        }
+
+        if (url.hostname) {
+            options.host = url.hostname;
+        }
+
+        if (url.auth) {
+            auth = url.auth.split(':');
+
+            if (!options.auth) {
+                options.auth = {};
+            }
+
+            options.auth.user = auth.shift();
+            options.auth.pass = auth.join(':');
+        }
+
+        Object.keys(url.query || {}).forEach(key => {
+            let obj = options;
+            let lKey = key;
+            let value = url.query[key];
+
+            if (!isNaN(value)) {
+                value = Number(value);
+            }
+
+            switch (value) {
+                case 'true':
+                    value = true;
+                    break;
+                case 'false':
+                    value = false;
+                    break;
+            }
+
+            // tls is nested object
+            if (key.indexOf('tls.') === 0) {
+                lKey = key.substr(4);
+                if (!options.tls) {
+                    options.tls = {};
+                }
+                obj = options.tls;
+            } else if (key.indexOf('.') >= 0) {
+                // ignore nested properties besides tls
+                return;
+            }
+
+            if (!(lKey in obj)) {
+                obj[lKey] = value;
+            }
+        });
+    });
+
+    return options;
+};
+
+module.exports._logFunc = (logger, level, defaults, data, message, ...args) => {
+    let entry = {};
+
+    Object.keys(defaults || {}).forEach(key => {
+        if (key !== 'level') {
+            entry[key] = defaults[key];
+        }
+    });
+
+    Object.keys(data || {}).forEach(key => {
+        if (key !== 'level') {
+            entry[key] = data[key];
+        }
+    });
+
+    logger[level](entry, message, ...args);
+};
+
+/**
+ * Returns a bunyan-compatible logger interface. Uses either provided logger or
+ * creates a default console logger
+ *
+ * @param {Object} [options] Options object that might include 'logger' value
+ * @return {Object} bunyan compatible logger
+ */
+module.exports.getLogger = (options, defaults) => {
+    options = options || {};
+
+    let response = {};
+    let levels = ['trace', 'debug', 'info', 'warn', 'error', 'fatal'];
+
+    if (!options.logger) {
+        // use vanity logger
+        levels.forEach(level => {
+            response[level] = () => false;
+        });
+        return response;
+    }
+
+    let logger = options.logger;
+
+    if (options.logger === true) {
+        // create console logger
+        logger = createDefaultLogger(levels);
+    }
+
+    levels.forEach(level => {
+        response[level] = (data, message, ...args) => {
+            module.exports._logFunc(logger, level, defaults, data, message, ...args);
+        };
+    });
+
+    return response;
+};
+
+/**
+ * Wrapper for creating a callback that either resolves or rejects a promise
+ * based on input
+ *
+ * @param {Function} resolve Function to run if callback is called
+ * @param {Function} reject Function to run if callback ends with an error
+ */
+module.exports.callbackPromise = (resolve, reject) =>
+    function () {
+        let args = Array.from(arguments);
+        let err = args.shift();
+        if (err) {
+            reject(err);
+        } else {
+            resolve(...args);
+        }
+    };
+
+module.exports.parseDataURI = uri => {
+    let input = uri;
+    let commaPos = input.indexOf(',');
+    if (!commaPos) {
+        return uri;
+    }
+
+    let data = input.substring(commaPos + 1);
+    let metaStr = input.substring('data:'.length, commaPos);
+
+    let encoding;
+
+    let metaEntries = metaStr.split(';');
+    let lastMetaEntry = metaEntries.length > 1 ? metaEntries[metaEntries.length - 1] : false;
+    if (lastMetaEntry && lastMetaEntry.indexOf('=') < 0) {
+        encoding = lastMetaEntry.toLowerCase();
+        metaEntries.pop();
+    }
+
+    let contentType = metaEntries.shift() || 'application/octet-stream';
+    let params = {};
+    for (let entry of metaEntries) {
+        let sep = entry.indexOf('=');
+        if (sep >= 0) {
+            let key = entry.substring(0, sep);
+            let value = entry.substring(sep + 1);
+            params[key] = value;
+        }
+    }
+
+    switch (encoding) {
+        case 'base64':
+            data = Buffer.from(data, 'base64');
+            break;
+        case 'utf8':
+            data = Buffer.from(data);
+            break;
+        default:
+            try {
+                data = Buffer.from(decodeURIComponent(data));
+            } catch (err) {
+                data = Buffer.from(data);
+            }
+            data = Buffer.from(data);
+    }
+
+    return { data, encoding, contentType, params };
+};
+
+/**
+ * Resolves a String or a Buffer value for content value. Useful if the value
+ * is a Stream or a file or an URL. If the value is a Stream, overwrites
+ * the stream object with the resolved value (you can't stream a value twice).
+ *
+ * This is useful when you want to create a plugin that needs a content value,
+ * for example the `html` or `text` value as a String or a Buffer but not as
+ * a file path or an URL.
+ *
+ * @param {Object} data An object or an Array you want to resolve an element for
+ * @param {String|Number} key Property name or an Array index
+ * @param {Function} callback Callback function with (err, value)
+ */
+module.exports.resolveContent = (data, key, callback) => {
+    let promise;
+
+    if (!callback) {
+        promise = new Promise((resolve, reject) => {
+            callback = module.exports.callbackPromise(resolve, reject);
+        });
+    }
+
+    let content = (data && data[key] && data[key].content) || data[key];
+    let contentStream;
+    let encoding = ((typeof data[key] === 'object' && data[key].encoding) || 'utf8')
+        .toString()
+        .toLowerCase()
+        .replace(/[-_\s]/g, '');
+
+    if (!content) {
+        return callback(null, content);
+    }
+
+    if (typeof content === 'object') {
+        if (typeof content.pipe === 'function') {
+            return resolveStream(content, (err, value) => {
+                if (err) {
+                    return callback(err);
+                }
+                // we can't stream twice the same content, so we need
+                // to replace the stream object with the streaming result
+                if (data[key].content) {
+                    data[key].content = value;
+                } else {
+                    data[key] = value;
+                }
+                callback(null, value);
+            });
+        } else if (/^https?:\/\//i.test(content.path || content.href)) {
+            contentStream = nmfetch(content.path || content.href);
+            return resolveStream(contentStream, callback);
+        } else if (/^data:/i.test(content.path || content.href)) {
+            let parsedDataUri = module.exports.parseDataURI(content.path || content.href);
+
+            if (!parsedDataUri || !parsedDataUri.data) {
+                return callback(null, Buffer.from(0));
+            }
+            return callback(null, parsedDataUri.data);
+        } else if (content.path) {
+            return resolveStream(fs.createReadStream(content.path), callback);
+        }
+    }
+
+    if (typeof data[key].content === 'string' && !['utf8', 'usascii', 'ascii'].includes(encoding)) {
+        content = Buffer.from(data[key].content, encoding);
+    }
+
+    // default action, return as is
+    setImmediate(() => callback(null, content));
+
+    return promise;
+};
+
+/**
+ * Copies properties from source objects to target objects
+ */
+module.exports.assign = function (/* target, ... sources */) {
+    let args = Array.from(arguments);
+    let target = args.shift() || {};
+
+    args.forEach(source => {
+        Object.keys(source || {}).forEach(key => {
+            if (['tls', 'auth'].includes(key) && source[key] && typeof source[key] === 'object') {
+                // tls and auth are special keys that need to be enumerated separately
+                // other objects are passed as is
+                if (!target[key]) {
+                    // ensure that target has this key
+                    target[key] = {};
+                }
+                Object.keys(source[key]).forEach(subKey => {
+                    target[key][subKey] = source[key][subKey];
+                });
+            } else {
+                target[key] = source[key];
+            }
+        });
+    });
+    return target;
+};
+
+module.exports.encodeXText = str => {
+    // ! 0x21
+    // + 0x2B
+    // = 0x3D
+    // ~ 0x7E
+    if (!/[^\x21-\x2A\x2C-\x3C\x3E-\x7E]/.test(str)) {
+        return str;
+    }
+    let buf = Buffer.from(str);
+    let result = '';
+    for (let i = 0, len = buf.length; i < len; i++) {
+        let c = buf[i];
+        if (c < 0x21 || c > 0x7e || c === 0x2b || c === 0x3d) {
+            result += '+' + (c < 0x10 ? '0' : '') + c.toString(16).toUpperCase();
+        } else {
+            result += String.fromCharCode(c);
+        }
+    }
+    return result;
+};
+
+/**
+ * Streams a stream value into a Buffer
+ *
+ * @param {Object} stream Readable stream
+ * @param {Function} callback Callback function with (err, value)
+ */
+function resolveStream(stream, callback) {
+    let responded = false;
+    let chunks = [];
+    let chunklen = 0;
+
+    stream.on('error', err => {
+        if (responded) {
+            return;
+        }
+
+        responded = true;
+        callback(err);
+    });
+
+    stream.on('readable', () => {
+        let chunk;
+        while ((chunk = stream.read()) !== null) {
+            chunks.push(chunk);
+            chunklen += chunk.length;
+        }
+    });
+
+    stream.on('end', () => {
+        if (responded) {
+            return;
+        }
+        responded = true;
+
+        let value;
+
+        try {
+            value = Buffer.concat(chunks, chunklen);
+        } catch (E) {
+            return callback(E);
+        }
+        callback(null, value);
+    });
+}
+
+/**
+ * Generates a bunyan-like logger that prints to console
+ *
+ * @returns {Object} Bunyan logger instance
+ */
+function createDefaultLogger(levels) {
+    let levelMaxLen = 0;
+    let levelNames = new Map();
+    levels.forEach(level => {
+        if (level.length > levelMaxLen) {
+            levelMaxLen = level.length;
+        }
+    });
+
+    levels.forEach(level => {
+        let levelName = level.toUpperCase();
+        if (levelName.length < levelMaxLen) {
+            levelName += ' '.repeat(levelMaxLen - levelName.length);
+        }
+        levelNames.set(level, levelName);
+    });
+
+    let print = (level, entry, message, ...args) => {
+        let prefix = '';
+        if (entry) {
+            if (entry.tnx === 'server') {
+                prefix = 'S: ';
+            } else if (entry.tnx === 'client') {
+                prefix = 'C: ';
+            }
+
+            if (entry.sid) {
+                prefix = '[' + entry.sid + '] ' + prefix;
+            }
+
+            if (entry.cid) {
+                prefix = '[#' + entry.cid + '] ' + prefix;
+            }
+        }
+
+        message = util.format(message, ...args);
+        message.split(/\r?\n/).forEach(line => {
+            console.log('[%s] %s %s', new Date().toISOString().substr(0, 19).replace(/T/, ' '), levelNames.get(level), prefix + line);
+        });
+    };
+
+    let logger = {};
+    levels.forEach(level => {
+        logger[level] = print.bind(null, level);
+    });
+
+    return logger;
+}
diff --git a/backend/node_modules/nodemailer/lib/smtp-connection/data-stream.js b/backend/node_modules/nodemailer/lib/smtp-connection/data-stream.js
new file mode 100644
index 0000000..5efa087
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/smtp-connection/data-stream.js
@@ -0,0 +1,108 @@
+'use strict';
+
+const stream = require('stream');
+const Transform = stream.Transform;
+
+/**
+ * Escapes dots in the beginning of lines. Ends the stream with <CR><LF>.<CR><LF>
+ * Also makes sure that only <CR><LF> sequences are used for linebreaks
+ *
+ * @param {Object} options Stream options
+ */
+class DataStream extends Transform {
+    constructor(options) {
+        super(options);
+        // init Transform
+        this.options = options || {};
+        this._curLine = '';
+
+        this.inByteCount = 0;
+        this.outByteCount = 0;
+        this.lastByte = false;
+    }
+
+    /**
+     * Escapes dots
+     */
+    _transform(chunk, encoding, done) {
+        let chunks = [];
+        let chunklen = 0;
+        let i,
+            len,
+            lastPos = 0;
+        let buf;
+
+        if (!chunk || !chunk.length) {
+            return done();
+        }
+
+        if (typeof chunk === 'string') {
+            chunk = Buffer.from(chunk);
+        }
+
+        this.inByteCount += chunk.length;
+
+        for (i = 0, len = chunk.length; i < len; i++) {
+            if (chunk[i] === 0x2e) {
+                // .
+                if ((i && chunk[i - 1] === 0x0a) || (!i && (!this.lastByte || this.lastByte === 0x0a))) {
+                    buf = chunk.slice(lastPos, i + 1);
+                    chunks.push(buf);
+                    chunks.push(Buffer.from('.'));
+                    chunklen += buf.length + 1;
+                    lastPos = i + 1;
+                }
+            } else if (chunk[i] === 0x0a) {
+                // .
+                if ((i && chunk[i - 1] !== 0x0d) || (!i && this.lastByte !== 0x0d)) {
+                    if (i > lastPos) {
+                        buf = chunk.slice(lastPos, i);
+                        chunks.push(buf);
+                        chunklen += buf.length + 2;
+                    } else {
+                        chunklen += 2;
+                    }
+                    chunks.push(Buffer.from('\r\n'));
+                    lastPos = i + 1;
+                }
+            }
+        }
+
+        if (chunklen) {
+            // add last piece
+            if (lastPos < chunk.length) {
+                buf = chunk.slice(lastPos);
+                chunks.push(buf);
+                chunklen += buf.length;
+            }
+
+            this.outByteCount += chunklen;
+            this.push(Buffer.concat(chunks, chunklen));
+        } else {
+            this.outByteCount += chunk.length;
+            this.push(chunk);
+        }
+
+        this.lastByte = chunk[chunk.length - 1];
+        done();
+    }
+
+    /**
+     * Finalizes the stream with a dot on a single line
+     */
+    _flush(done) {
+        let buf;
+        if (this.lastByte === 0x0a) {
+            buf = Buffer.from('.\r\n');
+        } else if (this.lastByte === 0x0d) {
+            buf = Buffer.from('\n.\r\n');
+        } else {
+            buf = Buffer.from('\r\n.\r\n');
+        }
+        this.outByteCount += buf.length;
+        this.push(buf);
+        done();
+    }
+}
+
+module.exports = DataStream;
diff --git a/backend/node_modules/nodemailer/lib/smtp-connection/http-proxy-client.js b/backend/node_modules/nodemailer/lib/smtp-connection/http-proxy-client.js
new file mode 100644
index 0000000..a59bb49
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/smtp-connection/http-proxy-client.js
@@ -0,0 +1,143 @@
+'use strict';
+
+/**
+ * Minimal HTTP/S proxy client
+ */
+
+const net = require('net');
+const tls = require('tls');
+const urllib = require('url');
+
+/**
+ * Establishes proxied connection to destinationPort
+ *
+ * httpProxyClient("http://localhost:3128/", 80, "google.com", function(err, socket){
+ *     socket.write("GET / HTTP/1.0\r\n\r\n");
+ * });
+ *
+ * @param {String} proxyUrl proxy configuration, etg "http://proxy.host:3128/"
+ * @param {Number} destinationPort Port to open in destination host
+ * @param {String} destinationHost Destination hostname
+ * @param {Function} callback Callback to run with the rocket object once connection is established
+ */
+function httpProxyClient(proxyUrl, destinationPort, destinationHost, callback) {
+    let proxy = urllib.parse(proxyUrl);
+
+    // create a socket connection to the proxy server
+    let options;
+    let connect;
+    let socket;
+
+    options = {
+        host: proxy.hostname,
+        port: Number(proxy.port) ? Number(proxy.port) : proxy.protocol === 'https:' ? 443 : 80
+    };
+
+    if (proxy.protocol === 'https:') {
+        // we can use untrusted proxies as long as we verify actual SMTP certificates
+        options.rejectUnauthorized = false;
+        connect = tls.connect.bind(tls);
+    } else {
+        connect = net.connect.bind(net);
+    }
+
+    // Error harness for initial connection. Once connection is established, the responsibility
+    // to handle errors is passed to whoever uses this socket
+    let finished = false;
+    let tempSocketErr = err => {
+        if (finished) {
+            return;
+        }
+        finished = true;
+        try {
+            socket.destroy();
+        } catch (E) {
+            // ignore
+        }
+        callback(err);
+    };
+
+    let timeoutErr = () => {
+        let err = new Error('Proxy socket timed out');
+        err.code = 'ETIMEDOUT';
+        tempSocketErr(err);
+    };
+
+    socket = connect(options, () => {
+        if (finished) {
+            return;
+        }
+
+        let reqHeaders = {
+            Host: destinationHost + ':' + destinationPort,
+            Connection: 'close'
+        };
+        if (proxy.auth) {
+            reqHeaders['Proxy-Authorization'] = 'Basic ' + Buffer.from(proxy.auth).toString('base64');
+        }
+
+        socket.write(
+            // HTTP method
+            'CONNECT ' +
+                destinationHost +
+                ':' +
+                destinationPort +
+                ' HTTP/1.1\r\n' +
+                // HTTP request headers
+                Object.keys(reqHeaders)
+                    .map(key => key + ': ' + reqHeaders[key])
+                    .join('\r\n') +
+                // End request
+                '\r\n\r\n'
+        );
+
+        let headers = '';
+        let onSocketData = chunk => {
+            let match;
+            let remainder;
+
+            if (finished) {
+                return;
+            }
+
+            headers += chunk.toString('binary');
+            if ((match = headers.match(/\r\n\r\n/))) {
+                socket.removeListener('data', onSocketData);
+
+                remainder = headers.substr(match.index + match[0].length);
+                headers = headers.substr(0, match.index);
+                if (remainder) {
+                    socket.unshift(Buffer.from(remainder, 'binary'));
+                }
+
+                // proxy connection is now established
+                finished = true;
+
+                // check response code
+                match = headers.match(/^HTTP\/\d+\.\d+ (\d+)/i);
+                if (!match || (match[1] || '').charAt(0) !== '2') {
+                    try {
+                        socket.destroy();
+                    } catch (E) {
+                        // ignore
+                    }
+                    return callback(new Error('Invalid response from proxy' + ((match && ': ' + match[1]) || '')));
+                }
+
+                socket.removeListener('error', tempSocketErr);
+                socket.removeListener('timeout', timeoutErr);
+                socket.setTimeout(0);
+
+                return callback(null, socket);
+            }
+        };
+        socket.on('data', onSocketData);
+    });
+
+    socket.setTimeout(httpProxyClient.timeout || 30 * 1000);
+    socket.on('timeout', timeoutErr);
+
+    socket.once('error', tempSocketErr);
+}
+
+module.exports = httpProxyClient;
diff --git a/backend/node_modules/nodemailer/lib/smtp-connection/index.js b/backend/node_modules/nodemailer/lib/smtp-connection/index.js
new file mode 100644
index 0000000..a0bb46d
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/smtp-connection/index.js
@@ -0,0 +1,1836 @@
+'use strict';
+
+const packageInfo = require('../../package.json');
+const EventEmitter = require('events').EventEmitter;
+const net = require('net');
+const tls = require('tls');
+const os = require('os');
+const crypto = require('crypto');
+const DataStream = require('./data-stream');
+const PassThrough = require('stream').PassThrough;
+const shared = require('../shared');
+
+// default timeout values in ms
+const CONNECTION_TIMEOUT = 2 * 60 * 1000; // how much to wait for the connection to be established
+const SOCKET_TIMEOUT = 10 * 60 * 1000; // how much to wait for socket inactivity before disconnecting the client
+const GREETING_TIMEOUT = 30 * 1000; // how much to wait after connection is established but SMTP greeting is not receieved
+const DNS_TIMEOUT = 30 * 1000; // how much to wait for resolveHostname
+
+/**
+ * Generates a SMTP connection object
+ *
+ * Optional options object takes the following possible properties:
+ *
+ *  * **port** - is the port to connect to (defaults to 587 or 465)
+ *  * **host** - is the hostname or IP address to connect to (defaults to 'localhost')
+ *  * **secure** - use SSL
+ *  * **ignoreTLS** - ignore server support for STARTTLS
+ *  * **requireTLS** - forces the client to use STARTTLS
+ *  * **name** - the name of the client server
+ *  * **localAddress** - outbound address to bind to (see: http://nodejs.org/api/net.html#net_net_connect_options_connectionlistener)
+ *  * **greetingTimeout** - Time to wait in ms until greeting message is received from the server (defaults to 10000)
+ *  * **connectionTimeout** - how many milliseconds to wait for the connection to establish
+ *  * **socketTimeout** - Time of inactivity until the connection is closed (defaults to 1 hour)
+ *  * **dnsTimeout** - Time to wait in ms for the DNS requests to be resolved (defaults to 30 seconds)
+ *  * **lmtp** - if true, uses LMTP instead of SMTP protocol
+ *  * **logger** - bunyan compatible logger interface
+ *  * **debug** - if true pass SMTP traffic to the logger
+ *  * **tls** - options for createCredentials
+ *  * **socket** - existing socket to use instead of creating a new one (see: http://nodejs.org/api/net.html#net_class_net_socket)
+ *  * **secured** - boolean indicates that the provided socket has already been upgraded to tls
+ *
+ * @constructor
+ * @namespace SMTP Client module
+ * @param {Object} [options] Option properties
+ */
+class SMTPConnection extends EventEmitter {
+    constructor(options) {
+        super(options);
+
+        this.id = crypto.randomBytes(8).toString('base64').replace(/\W/g, '');
+        this.stage = 'init';
+
+        this.options = options || {};
+
+        this.secureConnection = !!this.options.secure;
+        this.alreadySecured = !!this.options.secured;
+
+        this.port = Number(this.options.port) || (this.secureConnection ? 465 : 587);
+        this.host = this.options.host || 'localhost';
+
+        this.servername = this.options.servername ? this.options.servername : !net.isIP(this.host) ? this.host : false;
+
+        this.allowInternalNetworkInterfaces = this.options.allowInternalNetworkInterfaces || false;
+
+        if (typeof this.options.secure === 'undefined' && this.port === 465) {
+            // if secure option is not set but port is 465, then default to secure
+            this.secureConnection = true;
+        }
+
+        this.name = this.options.name || this._getHostname();
+
+        this.logger = shared.getLogger(this.options, {
+            component: this.options.component || 'smtp-connection',
+            sid: this.id
+        });
+
+        this.customAuth = new Map();
+        Object.keys(this.options.customAuth || {}).forEach(key => {
+            let mapKey = (key || '').toString().trim().toUpperCase();
+            if (!mapKey) {
+                return;
+            }
+            this.customAuth.set(mapKey, this.options.customAuth[key]);
+        });
+
+        /**
+         * Expose version nr, just for the reference
+         * @type {String}
+         */
+        this.version = packageInfo.version;
+
+        /**
+         * If true, then the user is authenticated
+         * @type {Boolean}
+         */
+        this.authenticated = false;
+
+        /**
+         * If set to true, this instance is no longer active
+         * @private
+         */
+        this.destroyed = false;
+
+        /**
+         * Defines if the current connection is secure or not. If not,
+         * STARTTLS can be used if available
+         * @private
+         */
+        this.secure = !!this.secureConnection;
+
+        /**
+         * Store incomplete messages coming from the server
+         * @private
+         */
+        this._remainder = '';
+
+        /**
+         * Unprocessed responses from the server
+         * @type {Array}
+         */
+        this._responseQueue = [];
+
+        this.lastServerResponse = false;
+
+        /**
+         * The socket connecting to the server
+         * @publick
+         */
+        this._socket = false;
+
+        /**
+         * Lists supported auth mechanisms
+         * @private
+         */
+        this._supportedAuth = [];
+
+        /**
+         * Set to true, if EHLO response includes "AUTH".
+         * If false then authentication is not tried
+         */
+        this.allowsAuth = false;
+
+        /**
+         * Includes current envelope (from, to)
+         * @private
+         */
+        this._envelope = false;
+
+        /**
+         * Lists supported extensions
+         * @private
+         */
+        this._supportedExtensions = [];
+
+        /**
+         * Defines the maximum allowed size for a single message
+         * @private
+         */
+        this._maxAllowedSize = 0;
+
+        /**
+         * Function queue to run if a data chunk comes from the server
+         * @private
+         */
+        this._responseActions = [];
+        this._recipientQueue = [];
+
+        /**
+         * Timeout variable for waiting the greeting
+         * @private
+         */
+        this._greetingTimeout = false;
+
+        /**
+         * Timeout variable for waiting the connection to start
+         * @private
+         */
+        this._connectionTimeout = false;
+
+        /**
+         * If the socket is deemed already closed
+         * @private
+         */
+        this._destroyed = false;
+
+        /**
+         * If the socket is already being closed
+         * @private
+         */
+        this._closing = false;
+
+        /**
+         * Callbacks for socket's listeners
+         */
+        this._onSocketData = chunk => this._onData(chunk);
+        this._onSocketError = error => this._onError(error, 'ESOCKET', false, 'CONN');
+        this._onSocketClose = () => this._onClose();
+        this._onSocketEnd = () => this._onEnd();
+        this._onSocketTimeout = () => this._onTimeout();
+    }
+
+    /**
+     * Creates a connection to a SMTP server and sets up connection
+     * listener
+     */
+    connect(connectCallback) {
+        if (typeof connectCallback === 'function') {
+            this.once('connect', () => {
+                this.logger.debug(
+                    {
+                        tnx: 'smtp'
+                    },
+                    'SMTP handshake finished'
+                );
+                connectCallback();
+            });
+
+            const isDestroyedMessage = this._isDestroyedMessage('connect');
+            if (isDestroyedMessage) {
+                return connectCallback(this._formatError(isDestroyedMessage, 'ECONNECTION', false, 'CONN'));
+            }
+        }
+
+        let opts = {
+            port: this.port,
+            host: this.host,
+            allowInternalNetworkInterfaces: this.allowInternalNetworkInterfaces,
+            timeout: this.options.dnsTimeout || DNS_TIMEOUT
+        };
+
+        if (this.options.localAddress) {
+            opts.localAddress = this.options.localAddress;
+        }
+
+        let setupConnectionHandlers = () => {
+            this._connectionTimeout = setTimeout(() => {
+                this._onError('Connection timeout', 'ETIMEDOUT', false, 'CONN');
+            }, this.options.connectionTimeout || CONNECTION_TIMEOUT);
+
+            this._socket.on('error', this._onSocketError);
+        };
+
+        if (this.options.connection) {
+            // connection is already opened
+            this._socket = this.options.connection;
+            setupConnectionHandlers();
+
+            if (this.secureConnection && !this.alreadySecured) {
+                setImmediate(() =>
+                    this._upgradeConnection(err => {
+                        if (err) {
+                            this._onError(new Error('Error initiating TLS - ' + (err.message || err)), 'ETLS', false, 'CONN');
+                            return;
+                        }
+                        this._onConnect();
+                    })
+                );
+            } else {
+                setImmediate(() => this._onConnect());
+            }
+            return;
+        } else if (this.options.socket) {
+            // socket object is set up but not yet connected
+            this._socket = this.options.socket;
+            return shared.resolveHostname(opts, (err, resolved) => {
+                if (err) {
+                    return setImmediate(() => this._onError(err, 'EDNS', false, 'CONN'));
+                }
+                this.logger.debug(
+                    {
+                        tnx: 'dns',
+                        source: opts.host,
+                        resolved: resolved.host,
+                        cached: !!resolved.cached
+                    },
+                    'Resolved %s as %s [cache %s]',
+                    opts.host,
+                    resolved.host,
+                    resolved.cached ? 'hit' : 'miss'
+                );
+                Object.keys(resolved).forEach(key => {
+                    if (key.charAt(0) !== '_' && resolved[key]) {
+                        opts[key] = resolved[key];
+                    }
+                });
+                try {
+                    this._socket.connect(this.port, this.host, () => {
+                        this._socket.setKeepAlive(true);
+                        this._onConnect();
+                    });
+                    setupConnectionHandlers();
+                } catch (E) {
+                    return setImmediate(() => this._onError(E, 'ECONNECTION', false, 'CONN'));
+                }
+            });
+        } else if (this.secureConnection) {
+            // connect using tls
+            if (this.options.tls) {
+                Object.keys(this.options.tls).forEach(key => {
+                    opts[key] = this.options.tls[key];
+                });
+            }
+
+            // ensure servername for SNI
+            if (this.servername && !opts.servername) {
+                opts.servername = this.servername;
+            }
+
+            return shared.resolveHostname(opts, (err, resolved) => {
+                if (err) {
+                    return setImmediate(() => this._onError(err, 'EDNS', false, 'CONN'));
+                }
+                this.logger.debug(
+                    {
+                        tnx: 'dns',
+                        source: opts.host,
+                        resolved: resolved.host,
+                        cached: !!resolved.cached
+                    },
+                    'Resolved %s as %s [cache %s]',
+                    opts.host,
+                    resolved.host,
+                    resolved.cached ? 'hit' : 'miss'
+                );
+                Object.keys(resolved).forEach(key => {
+                    if (key.charAt(0) !== '_' && resolved[key]) {
+                        opts[key] = resolved[key];
+                    }
+                });
+                try {
+                    this._socket = tls.connect(opts, () => {
+                        this._socket.setKeepAlive(true);
+                        this._onConnect();
+                    });
+                    setupConnectionHandlers();
+                } catch (E) {
+                    return setImmediate(() => this._onError(E, 'ECONNECTION', false, 'CONN'));
+                }
+            });
+        } else {
+            // connect using plaintext
+            return shared.resolveHostname(opts, (err, resolved) => {
+                if (err) {
+                    return setImmediate(() => this._onError(err, 'EDNS', false, 'CONN'));
+                }
+                this.logger.debug(
+                    {
+                        tnx: 'dns',
+                        source: opts.host,
+                        resolved: resolved.host,
+                        cached: !!resolved.cached
+                    },
+                    'Resolved %s as %s [cache %s]',
+                    opts.host,
+                    resolved.host,
+                    resolved.cached ? 'hit' : 'miss'
+                );
+                Object.keys(resolved).forEach(key => {
+                    if (key.charAt(0) !== '_' && resolved[key]) {
+                        opts[key] = resolved[key];
+                    }
+                });
+                try {
+                    this._socket = net.connect(opts, () => {
+                        this._socket.setKeepAlive(true);
+                        this._onConnect();
+                    });
+                    setupConnectionHandlers();
+                } catch (E) {
+                    return setImmediate(() => this._onError(E, 'ECONNECTION', false, 'CONN'));
+                }
+            });
+        }
+    }
+
+    /**
+     * Sends QUIT
+     */
+    quit() {
+        this._sendCommand('QUIT');
+        this._responseActions.push(this.close);
+    }
+
+    /**
+     * Closes the connection to the server
+     */
+    close() {
+        clearTimeout(this._connectionTimeout);
+        clearTimeout(this._greetingTimeout);
+        this._responseActions = [];
+
+        // allow to run this function only once
+        if (this._closing) {
+            return;
+        }
+        this._closing = true;
+
+        let closeMethod = 'end';
+
+        if (this.stage === 'init') {
+            // Close the socket immediately when connection timed out
+            closeMethod = 'destroy';
+        }
+
+        this.logger.debug(
+            {
+                tnx: 'smtp'
+            },
+            'Closing connection to the server using "%s"',
+            closeMethod
+        );
+
+        let socket = (this._socket && this._socket.socket) || this._socket;
+
+        if (socket && !socket.destroyed) {
+            try {
+                this._socket[closeMethod]();
+            } catch (E) {
+                // just ignore
+            }
+        }
+
+        this._destroy();
+    }
+
+    /**
+     * Authenticate user
+     */
+    login(authData, callback) {
+        const isDestroyedMessage = this._isDestroyedMessage('login');
+        if (isDestroyedMessage) {
+            return callback(this._formatError(isDestroyedMessage, 'ECONNECTION', false, 'API'));
+        }
+
+        this._auth = authData || {};
+        // Select SASL authentication method
+        this._authMethod = (this._auth.method || '').toString().trim().toUpperCase() || false;
+
+        if (!this._authMethod && this._auth.oauth2 && !this._auth.credentials) {
+            this._authMethod = 'XOAUTH2';
+        } else if (!this._authMethod || (this._authMethod === 'XOAUTH2' && !this._auth.oauth2)) {
+            // use first supported
+            this._authMethod = (this._supportedAuth[0] || 'PLAIN').toUpperCase().trim();
+        }
+
+        if (this._authMethod !== 'XOAUTH2' && (!this._auth.credentials || !this._auth.credentials.user || !this._auth.credentials.pass)) {
+            if ((this._auth.user && this._auth.pass) || this.customAuth.has(this._authMethod)) {
+                this._auth.credentials = {
+                    user: this._auth.user,
+                    pass: this._auth.pass,
+                    options: this._auth.options
+                };
+            } else {
+                return callback(this._formatError('Missing credentials for "' + this._authMethod + '"', 'EAUTH', false, 'API'));
+            }
+        }
+
+        if (this.customAuth.has(this._authMethod)) {
+            let handler = this.customAuth.get(this._authMethod);
+            let lastResponse;
+            let returned = false;
+
+            let resolve = () => {
+                if (returned) {
+                    return;
+                }
+                returned = true;
+                this.logger.info(
+                    {
+                        tnx: 'smtp',
+                        username: this._auth.user,
+                        action: 'authenticated',
+                        method: this._authMethod
+                    },
+                    'User %s authenticated',
+                    JSON.stringify(this._auth.user)
+                );
+                this.authenticated = true;
+                callback(null, true);
+            };
+
+            let reject = err => {
+                if (returned) {
+                    return;
+                }
+                returned = true;
+                callback(this._formatError(err, 'EAUTH', lastResponse, 'AUTH ' + this._authMethod));
+            };
+
+            let handlerResponse = handler({
+                auth: this._auth,
+                method: this._authMethod,
+
+                extensions: [].concat(this._supportedExtensions),
+                authMethods: [].concat(this._supportedAuth),
+                maxAllowedSize: this._maxAllowedSize || false,
+
+                sendCommand: (cmd, done) => {
+                    let promise;
+
+                    if (!done) {
+                        promise = new Promise((resolve, reject) => {
+                            done = shared.callbackPromise(resolve, reject);
+                        });
+                    }
+
+                    this._responseActions.push(str => {
+                        lastResponse = str;
+
+                        let codes = str.match(/^(\d+)(?:\s(\d+\.\d+\.\d+))?\s/);
+                        let data = {
+                            command: cmd,
+                            response: str
+                        };
+                        if (codes) {
+                            data.status = Number(codes[1]) || 0;
+                            if (codes[2]) {
+                                data.code = codes[2];
+                            }
+                            data.text = str.substr(codes[0].length);
+                        } else {
+                            data.text = str;
+                            data.status = 0; // just in case we need to perform numeric comparisons
+                        }
+                        done(null, data);
+                    });
+                    setImmediate(() => this._sendCommand(cmd));
+
+                    return promise;
+                },
+
+                resolve,
+                reject
+            });
+
+            if (handlerResponse && typeof handlerResponse.catch === 'function') {
+                // a promise was returned
+                handlerResponse.then(resolve).catch(reject);
+            }
+
+            return;
+        }
+
+        switch (this._authMethod) {
+            case 'XOAUTH2':
+                this._handleXOauth2Token(false, callback);
+                return;
+            case 'LOGIN':
+                this._responseActions.push(str => {
+                    this._actionAUTH_LOGIN_USER(str, callback);
+                });
+                this._sendCommand('AUTH LOGIN');
+                return;
+            case 'PLAIN':
+                this._responseActions.push(str => {
+                    this._actionAUTHComplete(str, callback);
+                });
+                this._sendCommand(
+                    'AUTH PLAIN ' +
+                        Buffer.from(
+                            //this._auth.user+'\u0000'+
+                            '\u0000' + // skip authorization identity as it causes problems with some servers
+                                this._auth.credentials.user +
+                                '\u0000' +
+                                this._auth.credentials.pass,
+                            'utf-8'
+                        ).toString('base64'),
+                    // log entry without passwords
+                    'AUTH PLAIN ' +
+                        Buffer.from(
+                            //this._auth.user+'\u0000'+
+                            '\u0000' + // skip authorization identity as it causes problems with some servers
+                                this._auth.credentials.user +
+                                '\u0000' +
+                                '/* secret */',
+                            'utf-8'
+                        ).toString('base64')
+                );
+                return;
+            case 'CRAM-MD5':
+                this._responseActions.push(str => {
+                    this._actionAUTH_CRAM_MD5(str, callback);
+                });
+                this._sendCommand('AUTH CRAM-MD5');
+                return;
+        }
+
+        return callback(this._formatError('Unknown authentication method "' + this._authMethod + '"', 'EAUTH', false, 'API'));
+    }
+
+    /**
+     * Sends a message
+     *
+     * @param {Object} envelope Envelope object, {from: addr, to: [addr]}
+     * @param {Object} message String, Buffer or a Stream
+     * @param {Function} callback Callback to return once sending is completed
+     */
+    send(envelope, message, done) {
+        if (!message) {
+            return done(this._formatError('Empty message', 'EMESSAGE', false, 'API'));
+        }
+
+        const isDestroyedMessage = this._isDestroyedMessage('send message');
+        if (isDestroyedMessage) {
+            return done(this._formatError(isDestroyedMessage, 'ECONNECTION', false, 'API'));
+        }
+
+        // reject larger messages than allowed
+        if (this._maxAllowedSize && envelope.size > this._maxAllowedSize) {
+            return setImmediate(() => {
+                done(this._formatError('Message size larger than allowed ' + this._maxAllowedSize, 'EMESSAGE', false, 'MAIL FROM'));
+            });
+        }
+
+        // ensure that callback is only called once
+        let returned = false;
+        let callback = function () {
+            if (returned) {
+                return;
+            }
+            returned = true;
+
+            done(...arguments);
+        };
+
+        if (typeof message.on === 'function') {
+            message.on('error', err => callback(this._formatError(err, 'ESTREAM', false, 'API')));
+        }
+
+        let startTime = Date.now();
+        this._setEnvelope(envelope, (err, info) => {
+            if (err) {
+                // create passthrough stream to consume to prevent OOM
+                let stream = new PassThrough();
+                if (typeof message.pipe === 'function') {
+                    message.pipe(stream);
+                } else {
+                    stream.write(message);
+                    stream.end();
+                }
+
+                return callback(err);
+            }
+            let envelopeTime = Date.now();
+            let stream = this._createSendStream((err, str) => {
+                if (err) {
+                    return callback(err);
+                }
+
+                info.envelopeTime = envelopeTime - startTime;
+                info.messageTime = Date.now() - envelopeTime;
+                info.messageSize = stream.outByteCount;
+                info.response = str;
+
+                return callback(null, info);
+            });
+            if (typeof message.pipe === 'function') {
+                message.pipe(stream);
+            } else {
+                stream.write(message);
+                stream.end();
+            }
+        });
+    }
+
+    /**
+     * Resets connection state
+     *
+     * @param {Function} callback Callback to return once connection is reset
+     */
+    reset(callback) {
+        this._sendCommand('RSET');
+        this._responseActions.push(str => {
+            if (str.charAt(0) !== '2') {
+                return callback(this._formatError('Could not reset session state. response=' + str, 'EPROTOCOL', str, 'RSET'));
+            }
+            this._envelope = false;
+            return callback(null, true);
+        });
+    }
+
+    /**
+     * Connection listener that is run when the connection to
+     * the server is opened
+     *
+     * @event
+     */
+    _onConnect() {
+        clearTimeout(this._connectionTimeout);
+
+        this.logger.info(
+            {
+                tnx: 'network',
+                localAddress: this._socket.localAddress,
+                localPort: this._socket.localPort,
+                remoteAddress: this._socket.remoteAddress,
+                remotePort: this._socket.remotePort
+            },
+            '%s established to %s:%s',
+            this.secure ? 'Secure connection' : 'Connection',
+            this._socket.remoteAddress,
+            this._socket.remotePort
+        );
+
+        if (this._destroyed) {
+            // Connection was established after we already had canceled it
+            this.close();
+            return;
+        }
+
+        this.stage = 'connected';
+
+        // clear existing listeners for the socket
+        this._socket.removeListener('data', this._onSocketData);
+        this._socket.removeListener('timeout', this._onSocketTimeout);
+        this._socket.removeListener('close', this._onSocketClose);
+        this._socket.removeListener('end', this._onSocketEnd);
+
+        this._socket.on('data', this._onSocketData);
+        this._socket.once('close', this._onSocketClose);
+        this._socket.once('end', this._onSocketEnd);
+
+        this._socket.setTimeout(this.options.socketTimeout || SOCKET_TIMEOUT);
+        this._socket.on('timeout', this._onSocketTimeout);
+
+        this._greetingTimeout = setTimeout(() => {
+            // if still waiting for greeting, give up
+            if (this._socket && !this._destroyed && this._responseActions[0] === this._actionGreeting) {
+                this._onError('Greeting never received', 'ETIMEDOUT', false, 'CONN');
+            }
+        }, this.options.greetingTimeout || GREETING_TIMEOUT);
+
+        this._responseActions.push(this._actionGreeting);
+
+        // we have a 'data' listener set up so resume socket if it was paused
+        this._socket.resume();
+    }
+
+    /**
+     * 'data' listener for data coming from the server
+     *
+     * @event
+     * @param {Buffer} chunk Data chunk coming from the server
+     */
+    _onData(chunk) {
+        if (this._destroyed || !chunk || !chunk.length) {
+            return;
+        }
+
+        let data = (chunk || '').toString('binary');
+        let lines = (this._remainder + data).split(/\r?\n/);
+        let lastline;
+
+        this._remainder = lines.pop();
+
+        for (let i = 0, len = lines.length; i < len; i++) {
+            if (this._responseQueue.length) {
+                lastline = this._responseQueue[this._responseQueue.length - 1];
+                if (/^\d+-/.test(lastline.split('\n').pop())) {
+                    this._responseQueue[this._responseQueue.length - 1] += '\n' + lines[i];
+                    continue;
+                }
+            }
+            this._responseQueue.push(lines[i]);
+        }
+
+        if (this._responseQueue.length) {
+            lastline = this._responseQueue[this._responseQueue.length - 1];
+            if (/^\d+-/.test(lastline.split('\n').pop())) {
+                return;
+            }
+        }
+
+        this._processResponse();
+    }
+
+    /**
+     * 'error' listener for the socket
+     *
+     * @event
+     * @param {Error} err Error object
+     * @param {String} type Error name
+     */
+    _onError(err, type, data, command) {
+        clearTimeout(this._connectionTimeout);
+        clearTimeout(this._greetingTimeout);
+
+        if (this._destroyed) {
+            // just ignore, already closed
+            // this might happen when a socket is canceled because of reached timeout
+            // but the socket timeout error itself receives only after
+            return;
+        }
+
+        err = this._formatError(err, type, data, command);
+
+        this.logger.error(data, err.message);
+
+        this.emit('error', err);
+        this.close();
+    }
+
+    _formatError(message, type, response, command) {
+        let err;
+
+        if (/Error\]$/i.test(Object.prototype.toString.call(message))) {
+            err = message;
+        } else {
+            err = new Error(message);
+        }
+
+        if (type && type !== 'Error') {
+            err.code = type;
+        }
+
+        if (response) {
+            err.response = response;
+            err.message += ': ' + response;
+        }
+
+        let responseCode = (typeof response === 'string' && Number((response.match(/^\d+/) || [])[0])) || false;
+        if (responseCode) {
+            err.responseCode = responseCode;
+        }
+
+        if (command) {
+            err.command = command;
+        }
+
+        return err;
+    }
+
+    /**
+     * 'close' listener for the socket
+     *
+     * @event
+     */
+    _onClose() {
+        let serverResponse = false;
+
+        if (this._remainder && this._remainder.trim()) {
+            if (this.options.debug || this.options.transactionLog) {
+                this.logger.debug(
+                    {
+                        tnx: 'server'
+                    },
+                    this._remainder.replace(/\r?\n$/, '')
+                );
+            }
+            this.lastServerResponse = serverResponse = this._remainder.trim();
+        }
+
+        this.logger.info(
+            {
+                tnx: 'network'
+            },
+            'Connection closed'
+        );
+
+        if (this.upgrading && !this._destroyed) {
+            return this._onError(new Error('Connection closed unexpectedly'), 'ETLS', serverResponse, 'CONN');
+        } else if (![this._actionGreeting, this.close].includes(this._responseActions[0]) && !this._destroyed) {
+            return this._onError(new Error('Connection closed unexpectedly'), 'ECONNECTION', serverResponse, 'CONN');
+        } else if (/^[45]\d{2}\b/.test(serverResponse)) {
+            return this._onError(new Error('Connection closed unexpectedly'), 'ECONNECTION', serverResponse, 'CONN');
+        }
+
+        this._destroy();
+    }
+
+    /**
+     * 'end' listener for the socket
+     *
+     * @event
+     */
+    _onEnd() {
+        if (this._socket && !this._socket.destroyed) {
+            this._socket.destroy();
+        }
+    }
+
+    /**
+     * 'timeout' listener for the socket
+     *
+     * @event
+     */
+    _onTimeout() {
+        return this._onError(new Error('Timeout'), 'ETIMEDOUT', false, 'CONN');
+    }
+
+    /**
+     * Destroys the client, emits 'end'
+     */
+    _destroy() {
+        if (this._destroyed) {
+            return;
+        }
+        this._destroyed = true;
+        this.emit('end');
+    }
+
+    /**
+     * Upgrades the connection to TLS
+     *
+     * @param {Function} callback Callback function to run when the connection
+     *        has been secured
+     */
+    _upgradeConnection(callback) {
+        // do not remove all listeners or it breaks node v0.10 as there's
+        // apparently a 'finish' event set that would be cleared as well
+
+        // we can safely keep 'error', 'end', 'close' etc. events
+        this._socket.removeListener('data', this._onSocketData); // incoming data is going to be gibberish from this point onwards
+        this._socket.removeListener('timeout', this._onSocketTimeout); // timeout will be re-set for the new socket object
+
+        let socketPlain = this._socket;
+        let opts = {
+            socket: this._socket,
+            host: this.host
+        };
+
+        Object.keys(this.options.tls || {}).forEach(key => {
+            opts[key] = this.options.tls[key];
+        });
+
+        // ensure servername for SNI
+        if (this.servername && !opts.servername) {
+            opts.servername = this.servername;
+        }
+
+        this.upgrading = true;
+        // tls.connect is not an asynchronous function however it may still throw errors and requires to be wrapped with try/catch
+        try {
+            this._socket = tls.connect(opts, () => {
+                this.secure = true;
+                this.upgrading = false;
+                this._socket.on('data', this._onSocketData);
+
+                socketPlain.removeListener('close', this._onSocketClose);
+                socketPlain.removeListener('end', this._onSocketEnd);
+
+                return callback(null, true);
+            });
+        } catch (err) {
+            return callback(err);
+        }
+
+        this._socket.on('error', this._onSocketError);
+        this._socket.once('close', this._onSocketClose);
+        this._socket.once('end', this._onSocketEnd);
+
+        this._socket.setTimeout(this.options.socketTimeout || SOCKET_TIMEOUT); // 10 min.
+        this._socket.on('timeout', this._onSocketTimeout);
+
+        // resume in case the socket was paused
+        socketPlain.resume();
+    }
+
+    /**
+     * Processes queued responses from the server
+     *
+     * @param {Boolean} force If true, ignores _processing flag
+     */
+    _processResponse() {
+        if (!this._responseQueue.length) {
+            return false;
+        }
+
+        let str = (this.lastServerResponse = (this._responseQueue.shift() || '').toString());
+
+        if (/^\d+-/.test(str.split('\n').pop())) {
+            // keep waiting for the final part of multiline response
+            return;
+        }
+
+        if (this.options.debug || this.options.transactionLog) {
+            this.logger.debug(
+                {
+                    tnx: 'server'
+                },
+                str.replace(/\r?\n$/, '')
+            );
+        }
+
+        if (!str.trim()) {
+            // skip unexpected empty lines
+            setImmediate(() => this._processResponse());
+        }
+
+        let action = this._responseActions.shift();
+
+        if (typeof action === 'function') {
+            action.call(this, str);
+            setImmediate(() => this._processResponse());
+        } else {
+            return this._onError(new Error('Unexpected Response'), 'EPROTOCOL', str, 'CONN');
+        }
+    }
+
+    /**
+     * Send a command to the server, append \r\n
+     *
+     * @param {String} str String to be sent to the server
+     * @param {String} logStr Optional string to be used for logging instead of the actual string
+     */
+    _sendCommand(str, logStr) {
+        if (this._destroyed) {
+            // Connection already closed, can't send any more data
+            return;
+        }
+
+        if (this._socket.destroyed) {
+            return this.close();
+        }
+
+        if (this.options.debug || this.options.transactionLog) {
+            this.logger.debug(
+                {
+                    tnx: 'client'
+                },
+                (logStr || str || '').toString().replace(/\r?\n$/, '')
+            );
+        }
+
+        this._socket.write(Buffer.from(str + '\r\n', 'utf-8'));
+    }
+
+    /**
+     * Initiates a new message by submitting envelope data, starting with
+     * MAIL FROM: command
+     *
+     * @param {Object} envelope Envelope object in the form of
+     *        {from:'...', to:['...']}
+     *        or
+     *        {from:{address:'...',name:'...'}, to:[address:'...',name:'...']}
+     */
+    _setEnvelope(envelope, callback) {
+        let args = [];
+        let useSmtpUtf8 = false;
+
+        this._envelope = envelope || {};
+        this._envelope.from = ((this._envelope.from && this._envelope.from.address) || this._envelope.from || '').toString().trim();
+
+        this._envelope.to = [].concat(this._envelope.to || []).map(to => ((to && to.address) || to || '').toString().trim());
+
+        if (!this._envelope.to.length) {
+            return callback(this._formatError('No recipients defined', 'EENVELOPE', false, 'API'));
+        }
+
+        if (this._envelope.from && /[\r\n<>]/.test(this._envelope.from)) {
+            return callback(this._formatError('Invalid sender ' + JSON.stringify(this._envelope.from), 'EENVELOPE', false, 'API'));
+        }
+
+        // check if the sender address uses only ASCII characters,
+        // otherwise require usage of SMTPUTF8 extension
+        if (/[\x80-\uFFFF]/.test(this._envelope.from)) {
+            useSmtpUtf8 = true;
+        }
+
+        for (let i = 0, len = this._envelope.to.length; i < len; i++) {
+            if (!this._envelope.to[i] || /[\r\n<>]/.test(this._envelope.to[i])) {
+                return callback(this._formatError('Invalid recipient ' + JSON.stringify(this._envelope.to[i]), 'EENVELOPE', false, 'API'));
+            }
+
+            // check if the recipients addresses use only ASCII characters,
+            // otherwise require usage of SMTPUTF8 extension
+            if (/[\x80-\uFFFF]/.test(this._envelope.to[i])) {
+                useSmtpUtf8 = true;
+            }
+        }
+
+        // clone the recipients array for latter manipulation
+        this._envelope.rcptQueue = JSON.parse(JSON.stringify(this._envelope.to || []));
+        this._envelope.rejected = [];
+        this._envelope.rejectedErrors = [];
+        this._envelope.accepted = [];
+
+        if (this._envelope.dsn) {
+            try {
+                this._envelope.dsn = this._setDsnEnvelope(this._envelope.dsn);
+            } catch (err) {
+                return callback(this._formatError('Invalid DSN ' + err.message, 'EENVELOPE', false, 'API'));
+            }
+        }
+
+        this._responseActions.push(str => {
+            this._actionMAIL(str, callback);
+        });
+
+        // If the server supports SMTPUTF8 and the envelope includes an internationalized
+        // email address then append SMTPUTF8 keyword to the MAIL FROM command
+        if (useSmtpUtf8 && this._supportedExtensions.includes('SMTPUTF8')) {
+            args.push('SMTPUTF8');
+            this._usingSmtpUtf8 = true;
+        }
+
+        // If the server supports 8BITMIME and the message might contain non-ascii bytes
+        // then append the 8BITMIME keyword to the MAIL FROM command
+        if (this._envelope.use8BitMime && this._supportedExtensions.includes('8BITMIME')) {
+            args.push('BODY=8BITMIME');
+            this._using8BitMime = true;
+        }
+
+        if (this._envelope.size && this._supportedExtensions.includes('SIZE')) {
+            args.push('SIZE=' + this._envelope.size);
+        }
+
+        // If the server supports DSN and the envelope includes an DSN prop
+        // then append DSN params to the MAIL FROM command
+        if (this._envelope.dsn && this._supportedExtensions.includes('DSN')) {
+            if (this._envelope.dsn.ret) {
+                args.push('RET=' + shared.encodeXText(this._envelope.dsn.ret));
+            }
+            if (this._envelope.dsn.envid) {
+                args.push('ENVID=' + shared.encodeXText(this._envelope.dsn.envid));
+            }
+        }
+
+        this._sendCommand('MAIL FROM:<' + this._envelope.from + '>' + (args.length ? ' ' + args.join(' ') : ''));
+    }
+
+    _setDsnEnvelope(params) {
+        let ret = (params.ret || params.return || '').toString().toUpperCase() || null;
+        if (ret) {
+            switch (ret) {
+                case 'HDRS':
+                case 'HEADERS':
+                    ret = 'HDRS';
+                    break;
+                case 'FULL':
+                case 'BODY':
+                    ret = 'FULL';
+                    break;
+            }
+        }
+
+        if (ret && !['FULL', 'HDRS'].includes(ret)) {
+            throw new Error('ret: ' + JSON.stringify(ret));
+        }
+
+        let envid = (params.envid || params.id || '').toString() || null;
+
+        let notify = params.notify || null;
+        if (notify) {
+            if (typeof notify === 'string') {
+                notify = notify.split(',');
+            }
+            notify = notify.map(n => n.trim().toUpperCase());
+            let validNotify = ['NEVER', 'SUCCESS', 'FAILURE', 'DELAY'];
+            let invaliNotify = notify.filter(n => !validNotify.includes(n));
+            if (invaliNotify.length || (notify.length > 1 && notify.includes('NEVER'))) {
+                throw new Error('notify: ' + JSON.stringify(notify.join(',')));
+            }
+            notify = notify.join(',');
+        }
+
+        let orcpt = (params.recipient || params.orcpt || '').toString() || null;
+        if (orcpt && orcpt.indexOf(';') < 0) {
+            orcpt = 'rfc822;' + orcpt;
+        }
+
+        return {
+            ret,
+            envid,
+            notify,
+            orcpt
+        };
+    }
+
+    _getDsnRcptToArgs() {
+        let args = [];
+        // If the server supports DSN and the envelope includes an DSN prop
+        // then append DSN params to the RCPT TO command
+        if (this._envelope.dsn && this._supportedExtensions.includes('DSN')) {
+            if (this._envelope.dsn.notify) {
+                args.push('NOTIFY=' + shared.encodeXText(this._envelope.dsn.notify));
+            }
+            if (this._envelope.dsn.orcpt) {
+                args.push('ORCPT=' + shared.encodeXText(this._envelope.dsn.orcpt));
+            }
+        }
+        return args.length ? ' ' + args.join(' ') : '';
+    }
+
+    _createSendStream(callback) {
+        let dataStream = new DataStream();
+        let logStream;
+
+        if (this.options.lmtp) {
+            this._envelope.accepted.forEach((recipient, i) => {
+                let final = i === this._envelope.accepted.length - 1;
+                this._responseActions.push(str => {
+                    this._actionLMTPStream(recipient, final, str, callback);
+                });
+            });
+        } else {
+            this._responseActions.push(str => {
+                this._actionSMTPStream(str, callback);
+            });
+        }
+
+        dataStream.pipe(this._socket, {
+            end: false
+        });
+
+        if (this.options.debug) {
+            logStream = new PassThrough();
+            logStream.on('readable', () => {
+                let chunk;
+                while ((chunk = logStream.read())) {
+                    this.logger.debug(
+                        {
+                            tnx: 'message'
+                        },
+                        chunk.toString('binary').replace(/\r?\n$/, '')
+                    );
+                }
+            });
+            dataStream.pipe(logStream);
+        }
+
+        dataStream.once('end', () => {
+            this.logger.info(
+                {
+                    tnx: 'message',
+                    inByteCount: dataStream.inByteCount,
+                    outByteCount: dataStream.outByteCount
+                },
+                '<%s bytes encoded mime message (source size %s bytes)>',
+                dataStream.outByteCount,
+                dataStream.inByteCount
+            );
+        });
+
+        return dataStream;
+    }
+
+    /** ACTIONS **/
+
+    /**
+     * Will be run after the connection is created and the server sends
+     * a greeting. If the incoming message starts with 220 initiate
+     * SMTP session by sending EHLO command
+     *
+     * @param {String} str Message from the server
+     */
+    _actionGreeting(str) {
+        clearTimeout(this._greetingTimeout);
+
+        if (str.substr(0, 3) !== '220') {
+            this._onError(new Error('Invalid greeting. response=' + str), 'EPROTOCOL', str, 'CONN');
+            return;
+        }
+
+        if (this.options.lmtp) {
+            this._responseActions.push(this._actionLHLO);
+            this._sendCommand('LHLO ' + this.name);
+        } else {
+            this._responseActions.push(this._actionEHLO);
+            this._sendCommand('EHLO ' + this.name);
+        }
+    }
+
+    /**
+     * Handles server response for LHLO command. If it yielded in
+     * error, emit 'error', otherwise treat this as an EHLO response
+     *
+     * @param {String} str Message from the server
+     */
+    _actionLHLO(str) {
+        if (str.charAt(0) !== '2') {
+            this._onError(new Error('Invalid LHLO. response=' + str), 'EPROTOCOL', str, 'LHLO');
+            return;
+        }
+
+        this._actionEHLO(str);
+    }
+
+    /**
+     * Handles server response for EHLO command. If it yielded in
+     * error, try HELO instead, otherwise initiate TLS negotiation
+     * if STARTTLS is supported by the server or move into the
+     * authentication phase.
+     *
+     * @param {String} str Message from the server
+     */
+    _actionEHLO(str) {
+        let match;
+
+        if (str.substr(0, 3) === '421') {
+            this._onError(new Error('Server terminates connection. response=' + str), 'ECONNECTION', str, 'EHLO');
+            return;
+        }
+
+        if (str.charAt(0) !== '2') {
+            if (this.options.requireTLS) {
+                this._onError(new Error('EHLO failed but HELO does not support required STARTTLS. response=' + str), 'ECONNECTION', str, 'EHLO');
+                return;
+            }
+
+            // Try HELO instead
+            this._responseActions.push(this._actionHELO);
+            this._sendCommand('HELO ' + this.name);
+            return;
+        }
+
+        this._ehloLines = str
+            .split(/\r?\n/)
+            .map(line => line.replace(/^\d+[ -]/, '').trim())
+            .filter(line => line)
+            .slice(1);
+
+        // Detect if the server supports STARTTLS
+        if (!this.secure && !this.options.ignoreTLS && (/[ -]STARTTLS\b/im.test(str) || this.options.requireTLS)) {
+            this._sendCommand('STARTTLS');
+            this._responseActions.push(this._actionSTARTTLS);
+            return;
+        }
+
+        // Detect if the server supports SMTPUTF8
+        if (/[ -]SMTPUTF8\b/im.test(str)) {
+            this._supportedExtensions.push('SMTPUTF8');
+        }
+
+        // Detect if the server supports DSN
+        if (/[ -]DSN\b/im.test(str)) {
+            this._supportedExtensions.push('DSN');
+        }
+
+        // Detect if the server supports 8BITMIME
+        if (/[ -]8BITMIME\b/im.test(str)) {
+            this._supportedExtensions.push('8BITMIME');
+        }
+
+        // Detect if the server supports PIPELINING
+        if (/[ -]PIPELINING\b/im.test(str)) {
+            this._supportedExtensions.push('PIPELINING');
+        }
+
+        // Detect if the server supports AUTH
+        if (/[ -]AUTH\b/i.test(str)) {
+            this.allowsAuth = true;
+        }
+
+        // Detect if the server supports PLAIN auth
+        if (/[ -]AUTH(?:(\s+|=)[^\n]*\s+|\s+|=)PLAIN/i.test(str)) {
+            this._supportedAuth.push('PLAIN');
+        }
+
+        // Detect if the server supports LOGIN auth
+        if (/[ -]AUTH(?:(\s+|=)[^\n]*\s+|\s+|=)LOGIN/i.test(str)) {
+            this._supportedAuth.push('LOGIN');
+        }
+
+        // Detect if the server supports CRAM-MD5 auth
+        if (/[ -]AUTH(?:(\s+|=)[^\n]*\s+|\s+|=)CRAM-MD5/i.test(str)) {
+            this._supportedAuth.push('CRAM-MD5');
+        }
+
+        // Detect if the server supports XOAUTH2 auth
+        if (/[ -]AUTH(?:(\s+|=)[^\n]*\s+|\s+|=)XOAUTH2/i.test(str)) {
+            this._supportedAuth.push('XOAUTH2');
+        }
+
+        // Detect if the server supports SIZE extensions (and the max allowed size)
+        if ((match = str.match(/[ -]SIZE(?:[ \t]+(\d+))?/im))) {
+            this._supportedExtensions.push('SIZE');
+            this._maxAllowedSize = Number(match[1]) || 0;
+        }
+
+        this.emit('connect');
+    }
+
+    /**
+     * Handles server response for HELO command. If it yielded in
+     * error, emit 'error', otherwise move into the authentication phase.
+     *
+     * @param {String} str Message from the server
+     */
+    _actionHELO(str) {
+        if (str.charAt(0) !== '2') {
+            this._onError(new Error('Invalid HELO. response=' + str), 'EPROTOCOL', str, 'HELO');
+            return;
+        }
+
+        // assume that authentication is enabled (most probably is not though)
+        this.allowsAuth = true;
+
+        this.emit('connect');
+    }
+
+    /**
+     * Handles server response for STARTTLS command. If there's an error
+     * try HELO instead, otherwise initiate TLS upgrade. If the upgrade
+     * succeedes restart the EHLO
+     *
+     * @param {String} str Message from the server
+     */
+    _actionSTARTTLS(str) {
+        if (str.charAt(0) !== '2') {
+            if (this.options.opportunisticTLS) {
+                this.logger.info(
+                    {
+                        tnx: 'smtp'
+                    },
+                    'Failed STARTTLS upgrade, continuing unencrypted'
+                );
+                return this.emit('connect');
+            }
+            this._onError(new Error('Error upgrading connection with STARTTLS'), 'ETLS', str, 'STARTTLS');
+            return;
+        }
+
+        this._upgradeConnection((err, secured) => {
+            if (err) {
+                this._onError(new Error('Error initiating TLS - ' + (err.message || err)), 'ETLS', false, 'STARTTLS');
+                return;
+            }
+
+            this.logger.info(
+                {
+                    tnx: 'smtp'
+                },
+                'Connection upgraded with STARTTLS'
+            );
+
+            if (secured) {
+                // restart session
+                if (this.options.lmtp) {
+                    this._responseActions.push(this._actionLHLO);
+                    this._sendCommand('LHLO ' + this.name);
+                } else {
+                    this._responseActions.push(this._actionEHLO);
+                    this._sendCommand('EHLO ' + this.name);
+                }
+            } else {
+                this.emit('connect');
+            }
+        });
+    }
+
+    /**
+     * Handle the response for AUTH LOGIN command. We are expecting
+     * '334 VXNlcm5hbWU6' (base64 for 'Username:'). Data to be sent as
+     * response needs to be base64 encoded username. We do not need
+     * exact match but settle with 334 response in general as some
+     * hosts invalidly use a longer message than VXNlcm5hbWU6
+     *
+     * @param {String} str Message from the server
+     */
+    _actionAUTH_LOGIN_USER(str, callback) {
+        if (!/^334[ -]/.test(str)) {
+            // expecting '334 VXNlcm5hbWU6'
+            callback(this._formatError('Invalid login sequence while waiting for "334 VXNlcm5hbWU6"', 'EAUTH', str, 'AUTH LOGIN'));
+            return;
+        }
+
+        this._responseActions.push(str => {
+            this._actionAUTH_LOGIN_PASS(str, callback);
+        });
+
+        this._sendCommand(Buffer.from(this._auth.credentials.user + '', 'utf-8').toString('base64'));
+    }
+
+    /**
+     * Handle the response for AUTH CRAM-MD5 command. We are expecting
+     * '334 <challenge string>'. Data to be sent as response needs to be
+     * base64 decoded challenge string, MD5 hashed using the password as
+     * a HMAC key, prefixed by the username and a space, and finally all
+     * base64 encoded again.
+     *
+     * @param {String} str Message from the server
+     */
+    _actionAUTH_CRAM_MD5(str, callback) {
+        let challengeMatch = str.match(/^334\s+(.+)$/);
+        let challengeString = '';
+
+        if (!challengeMatch) {
+            return callback(this._formatError('Invalid login sequence while waiting for server challenge string', 'EAUTH', str, 'AUTH CRAM-MD5'));
+        } else {
+            challengeString = challengeMatch[1];
+        }
+
+        // Decode from base64
+        let base64decoded = Buffer.from(challengeString, 'base64').toString('ascii'),
+            hmacMD5 = crypto.createHmac('md5', this._auth.credentials.pass);
+
+        hmacMD5.update(base64decoded);
+
+        let prepended = this._auth.credentials.user + ' ' + hmacMD5.digest('hex');
+
+        this._responseActions.push(str => {
+            this._actionAUTH_CRAM_MD5_PASS(str, callback);
+        });
+
+        this._sendCommand(
+            Buffer.from(prepended).toString('base64'),
+            // hidden hash for logs
+            Buffer.from(this._auth.credentials.user + ' /* secret */').toString('base64')
+        );
+    }
+
+    /**
+     * Handles the response to CRAM-MD5 authentication, if there's no error,
+     * the user can be considered logged in. Start waiting for a message to send
+     *
+     * @param {String} str Message from the server
+     */
+    _actionAUTH_CRAM_MD5_PASS(str, callback) {
+        if (!str.match(/^235\s+/)) {
+            return callback(this._formatError('Invalid login sequence while waiting for "235"', 'EAUTH', str, 'AUTH CRAM-MD5'));
+        }
+
+        this.logger.info(
+            {
+                tnx: 'smtp',
+                username: this._auth.user,
+                action: 'authenticated',
+                method: this._authMethod
+            },
+            'User %s authenticated',
+            JSON.stringify(this._auth.user)
+        );
+        this.authenticated = true;
+        callback(null, true);
+    }
+
+    /**
+     * Handle the response for AUTH LOGIN command. We are expecting
+     * '334 UGFzc3dvcmQ6' (base64 for 'Password:'). Data to be sent as
+     * response needs to be base64 encoded password.
+     *
+     * @param {String} str Message from the server
+     */
+    _actionAUTH_LOGIN_PASS(str, callback) {
+        if (!/^334[ -]/.test(str)) {
+            // expecting '334 UGFzc3dvcmQ6'
+            return callback(this._formatError('Invalid login sequence while waiting for "334 UGFzc3dvcmQ6"', 'EAUTH', str, 'AUTH LOGIN'));
+        }
+
+        this._responseActions.push(str => {
+            this._actionAUTHComplete(str, callback);
+        });
+
+        this._sendCommand(
+            Buffer.from((this._auth.credentials.pass || '').toString(), 'utf-8').toString('base64'),
+            // Hidden pass for logs
+            Buffer.from('/* secret */', 'utf-8').toString('base64')
+        );
+    }
+
+    /**
+     * Handles the response for authentication, if there's no error,
+     * the user can be considered logged in. Start waiting for a message to send
+     *
+     * @param {String} str Message from the server
+     */
+    _actionAUTHComplete(str, isRetry, callback) {
+        if (!callback && typeof isRetry === 'function') {
+            callback = isRetry;
+            isRetry = false;
+        }
+
+        if (str.substr(0, 3) === '334') {
+            this._responseActions.push(str => {
+                if (isRetry || this._authMethod !== 'XOAUTH2') {
+                    this._actionAUTHComplete(str, true, callback);
+                } else {
+                    // fetch a new OAuth2 access token
+                    setImmediate(() => this._handleXOauth2Token(true, callback));
+                }
+            });
+            this._sendCommand('');
+            return;
+        }
+
+        if (str.charAt(0) !== '2') {
+            this.logger.info(
+                {
+                    tnx: 'smtp',
+                    username: this._auth.user,
+                    action: 'authfail',
+                    method: this._authMethod
+                },
+                'User %s failed to authenticate',
+                JSON.stringify(this._auth.user)
+            );
+            return callback(this._formatError('Invalid login', 'EAUTH', str, 'AUTH ' + this._authMethod));
+        }
+
+        this.logger.info(
+            {
+                tnx: 'smtp',
+                username: this._auth.user,
+                action: 'authenticated',
+                method: this._authMethod
+            },
+            'User %s authenticated',
+            JSON.stringify(this._auth.user)
+        );
+        this.authenticated = true;
+        callback(null, true);
+    }
+
+    /**
+     * Handle response for a MAIL FROM: command
+     *
+     * @param {String} str Message from the server
+     */
+    _actionMAIL(str, callback) {
+        let message, curRecipient;
+        if (Number(str.charAt(0)) !== 2) {
+            if (this._usingSmtpUtf8 && /^550 /.test(str) && /[\x80-\uFFFF]/.test(this._envelope.from)) {
+                message = 'Internationalized mailbox name not allowed';
+            } else {
+                message = 'Mail command failed';
+            }
+            return callback(this._formatError(message, 'EENVELOPE', str, 'MAIL FROM'));
+        }
+
+        if (!this._envelope.rcptQueue.length) {
+            return callback(this._formatError('Can\x27t send mail - no recipients defined', 'EENVELOPE', false, 'API'));
+        } else {
+            this._recipientQueue = [];
+
+            if (this._supportedExtensions.includes('PIPELINING')) {
+                while (this._envelope.rcptQueue.length) {
+                    curRecipient = this._envelope.rcptQueue.shift();
+                    this._recipientQueue.push(curRecipient);
+                    this._responseActions.push(str => {
+                        this._actionRCPT(str, callback);
+                    });
+                    this._sendCommand('RCPT TO:<' + curRecipient + '>' + this._getDsnRcptToArgs());
+                }
+            } else {
+                curRecipient = this._envelope.rcptQueue.shift();
+                this._recipientQueue.push(curRecipient);
+                this._responseActions.push(str => {
+                    this._actionRCPT(str, callback);
+                });
+                this._sendCommand('RCPT TO:<' + curRecipient + '>' + this._getDsnRcptToArgs());
+            }
+        }
+    }
+
+    /**
+     * Handle response for a RCPT TO: command
+     *
+     * @param {String} str Message from the server
+     */
+    _actionRCPT(str, callback) {
+        let message,
+            err,
+            curRecipient = this._recipientQueue.shift();
+        if (Number(str.charAt(0)) !== 2) {
+            // this is a soft error
+            if (this._usingSmtpUtf8 && /^553 /.test(str) && /[\x80-\uFFFF]/.test(curRecipient)) {
+                message = 'Internationalized mailbox name not allowed';
+            } else {
+                message = 'Recipient command failed';
+            }
+            this._envelope.rejected.push(curRecipient);
+            // store error for the failed recipient
+            err = this._formatError(message, 'EENVELOPE', str, 'RCPT TO');
+            err.recipient = curRecipient;
+            this._envelope.rejectedErrors.push(err);
+        } else {
+            this._envelope.accepted.push(curRecipient);
+        }
+
+        if (!this._envelope.rcptQueue.length && !this._recipientQueue.length) {
+            if (this._envelope.rejected.length < this._envelope.to.length) {
+                this._responseActions.push(str => {
+                    this._actionDATA(str, callback);
+                });
+                this._sendCommand('DATA');
+            } else {
+                err = this._formatError('Can\x27t send mail - all recipients were rejected', 'EENVELOPE', str, 'RCPT TO');
+                err.rejected = this._envelope.rejected;
+                err.rejectedErrors = this._envelope.rejectedErrors;
+                return callback(err);
+            }
+        } else if (this._envelope.rcptQueue.length) {
+            curRecipient = this._envelope.rcptQueue.shift();
+            this._recipientQueue.push(curRecipient);
+            this._responseActions.push(str => {
+                this._actionRCPT(str, callback);
+            });
+            this._sendCommand('RCPT TO:<' + curRecipient + '>' + this._getDsnRcptToArgs());
+        }
+    }
+
+    /**
+     * Handle response for a DATA command
+     *
+     * @param {String} str Message from the server
+     */
+    _actionDATA(str, callback) {
+        // response should be 354 but according to this issue https://github.com/eleith/emailjs/issues/24
+        // some servers might use 250 instead, so lets check for 2 or 3 as the first digit
+        if (!/^[23]/.test(str)) {
+            return callback(this._formatError('Data command failed', 'EENVELOPE', str, 'DATA'));
+        }
+
+        let response = {
+            accepted: this._envelope.accepted,
+            rejected: this._envelope.rejected
+        };
+
+        if (this._ehloLines && this._ehloLines.length) {
+            response.ehlo = this._ehloLines;
+        }
+
+        if (this._envelope.rejectedErrors.length) {
+            response.rejectedErrors = this._envelope.rejectedErrors;
+        }
+
+        callback(null, response);
+    }
+
+    /**
+     * Handle response for a DATA stream when using SMTP
+     * We expect a single response that defines if the sending succeeded or failed
+     *
+     * @param {String} str Message from the server
+     */
+    _actionSMTPStream(str, callback) {
+        if (Number(str.charAt(0)) !== 2) {
+            // Message failed
+            return callback(this._formatError('Message failed', 'EMESSAGE', str, 'DATA'));
+        } else {
+            // Message sent succesfully
+            return callback(null, str);
+        }
+    }
+
+    /**
+     * Handle response for a DATA stream
+     * We expect a separate response for every recipient. All recipients can either
+     * succeed or fail separately
+     *
+     * @param {String} recipient The recipient this response applies to
+     * @param {Boolean} final Is this the final recipient?
+     * @param {String} str Message from the server
+     */
+    _actionLMTPStream(recipient, final, str, callback) {
+        let err;
+        if (Number(str.charAt(0)) !== 2) {
+            // Message failed
+            err = this._formatError('Message failed for recipient ' + recipient, 'EMESSAGE', str, 'DATA');
+            err.recipient = recipient;
+            this._envelope.rejected.push(recipient);
+            this._envelope.rejectedErrors.push(err);
+            for (let i = 0, len = this._envelope.accepted.length; i < len; i++) {
+                if (this._envelope.accepted[i] === recipient) {
+                    this._envelope.accepted.splice(i, 1);
+                }
+            }
+        }
+        if (final) {
+            return callback(null, str);
+        }
+    }
+
+    _handleXOauth2Token(isRetry, callback) {
+        this._auth.oauth2.getToken(isRetry, (err, accessToken) => {
+            if (err) {
+                this.logger.info(
+                    {
+                        tnx: 'smtp',
+                        username: this._auth.user,
+                        action: 'authfail',
+                        method: this._authMethod
+                    },
+                    'User %s failed to authenticate',
+                    JSON.stringify(this._auth.user)
+                );
+                return callback(this._formatError(err, 'EAUTH', false, 'AUTH XOAUTH2'));
+            }
+            this._responseActions.push(str => {
+                this._actionAUTHComplete(str, isRetry, callback);
+            });
+            this._sendCommand(
+                'AUTH XOAUTH2 ' + this._auth.oauth2.buildXOAuth2Token(accessToken),
+                //  Hidden for logs
+                'AUTH XOAUTH2 ' + this._auth.oauth2.buildXOAuth2Token('/* secret */')
+            );
+        });
+    }
+
+    /**
+     *
+     * @param {string} command
+     * @private
+     */
+    _isDestroyedMessage(command) {
+        if (this._destroyed) {
+            return 'Cannot ' + command + ' - smtp connection is already destroyed.';
+        }
+
+        if (this._socket) {
+            if (this._socket.destroyed) {
+                return 'Cannot ' + command + ' - smtp connection socket is already destroyed.';
+            }
+
+            if (!this._socket.writable) {
+                return 'Cannot ' + command + ' - smtp connection socket is already half-closed.';
+            }
+        }
+    }
+
+    _getHostname() {
+        // defaul hostname is machine hostname or [IP]
+        let defaultHostname;
+        try {
+            defaultHostname = os.hostname() || '';
+        } catch (err) {
+            // fails on windows 7
+            defaultHostname = 'localhost';
+        }
+
+        // ignore if not FQDN
+        if (!defaultHostname || defaultHostname.indexOf('.') < 0) {
+            defaultHostname = '[127.0.0.1]';
+        }
+
+        // IP should be enclosed in []
+        if (defaultHostname.match(/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/)) {
+            defaultHostname = '[' + defaultHostname + ']';
+        }
+
+        return defaultHostname;
+    }
+}
+
+module.exports = SMTPConnection;
diff --git a/backend/node_modules/nodemailer/lib/smtp-pool/index.js b/backend/node_modules/nodemailer/lib/smtp-pool/index.js
new file mode 100644
index 0000000..6a5d309
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/smtp-pool/index.js
@@ -0,0 +1,648 @@
+'use strict';
+
+const EventEmitter = require('events');
+const PoolResource = require('./pool-resource');
+const SMTPConnection = require('../smtp-connection');
+const wellKnown = require('../well-known');
+const shared = require('../shared');
+const packageData = require('../../package.json');
+
+/**
+ * Creates a SMTP pool transport object for Nodemailer
+ *
+ * @constructor
+ * @param {Object} options SMTP Connection options
+ */
+class SMTPPool extends EventEmitter {
+    constructor(options) {
+        super();
+
+        options = options || {};
+        if (typeof options === 'string') {
+            options = {
+                url: options
+            };
+        }
+
+        let urlData;
+        let service = options.service;
+
+        if (typeof options.getSocket === 'function') {
+            this.getSocket = options.getSocket;
+        }
+
+        if (options.url) {
+            urlData = shared.parseConnectionUrl(options.url);
+            service = service || urlData.service;
+        }
+
+        this.options = shared.assign(
+            false, // create new object
+            options, // regular options
+            urlData, // url options
+            service && wellKnown(service) // wellknown options
+        );
+
+        this.options.maxConnections = this.options.maxConnections || 5;
+        this.options.maxMessages = this.options.maxMessages || 100;
+
+        this.logger = shared.getLogger(this.options, {
+            component: this.options.component || 'smtp-pool'
+        });
+
+        // temporary object
+        let connection = new SMTPConnection(this.options);
+
+        this.name = 'SMTP (pool)';
+        this.version = packageData.version + '[client:' + connection.version + ']';
+
+        this._rateLimit = {
+            counter: 0,
+            timeout: null,
+            waiting: [],
+            checkpoint: false,
+            delta: Number(this.options.rateDelta) || 1000,
+            limit: Number(this.options.rateLimit) || 0
+        };
+        this._closed = false;
+        this._queue = [];
+        this._connections = [];
+        this._connectionCounter = 0;
+
+        this.idling = true;
+
+        setImmediate(() => {
+            if (this.idling) {
+                this.emit('idle');
+            }
+        });
+    }
+
+    /**
+     * Placeholder function for creating proxy sockets. This method immediatelly returns
+     * without a socket
+     *
+     * @param {Object} options Connection options
+     * @param {Function} callback Callback function to run with the socket keys
+     */
+    getSocket(options, callback) {
+        // return immediatelly
+        return setImmediate(() => callback(null, false));
+    }
+
+    /**
+     * Queues an e-mail to be sent using the selected settings
+     *
+     * @param {Object} mail Mail object
+     * @param {Function} callback Callback function
+     */
+    send(mail, callback) {
+        if (this._closed) {
+            return false;
+        }
+
+        this._queue.push({
+            mail,
+            requeueAttempts: 0,
+            callback
+        });
+
+        if (this.idling && this._queue.length >= this.options.maxConnections) {
+            this.idling = false;
+        }
+
+        setImmediate(() => this._processMessages());
+
+        return true;
+    }
+
+    /**
+     * Closes all connections in the pool. If there is a message being sent, the connection
+     * is closed later
+     */
+    close() {
+        let connection;
+        let len = this._connections.length;
+        this._closed = true;
+
+        // clear rate limit timer if it exists
+        clearTimeout(this._rateLimit.timeout);
+
+        if (!len && !this._queue.length) {
+            return;
+        }
+
+        // remove all available connections
+        for (let i = len - 1; i >= 0; i--) {
+            if (this._connections[i] && this._connections[i].available) {
+                connection = this._connections[i];
+                connection.close();
+                this.logger.info(
+                    {
+                        tnx: 'connection',
+                        cid: connection.id,
+                        action: 'removed'
+                    },
+                    'Connection #%s removed',
+                    connection.id
+                );
+            }
+        }
+
+        if (len && !this._connections.length) {
+            this.logger.debug(
+                {
+                    tnx: 'connection'
+                },
+                'All connections removed'
+            );
+        }
+
+        if (!this._queue.length) {
+            return;
+        }
+
+        // make sure that entire queue would be cleaned
+        let invokeCallbacks = () => {
+            if (!this._queue.length) {
+                this.logger.debug(
+                    {
+                        tnx: 'connection'
+                    },
+                    'Pending queue entries cleared'
+                );
+                return;
+            }
+            let entry = this._queue.shift();
+            if (entry && typeof entry.callback === 'function') {
+                try {
+                    entry.callback(new Error('Connection pool was closed'));
+                } catch (E) {
+                    this.logger.error(
+                        {
+                            err: E,
+                            tnx: 'callback',
+                            cid: connection.id
+                        },
+                        'Callback error for #%s: %s',
+                        connection.id,
+                        E.message
+                    );
+                }
+            }
+            setImmediate(invokeCallbacks);
+        };
+        setImmediate(invokeCallbacks);
+    }
+
+    /**
+     * Check the queue and available connections. If there is a message to be sent and there is
+     * an available connection, then use this connection to send the mail
+     */
+    _processMessages() {
+        let connection;
+        let i, len;
+
+        // do nothing if already closed
+        if (this._closed) {
+            return;
+        }
+
+        // do nothing if queue is empty
+        if (!this._queue.length) {
+            if (!this.idling) {
+                // no pending jobs
+                this.idling = true;
+                this.emit('idle');
+            }
+            return;
+        }
+
+        // find first available connection
+        for (i = 0, len = this._connections.length; i < len; i++) {
+            if (this._connections[i].available) {
+                connection = this._connections[i];
+                break;
+            }
+        }
+
+        if (!connection && this._connections.length < this.options.maxConnections) {
+            connection = this._createConnection();
+        }
+
+        if (!connection) {
+            // no more free connection slots available
+            this.idling = false;
+            return;
+        }
+
+        // check if there is free space in the processing queue
+        if (!this.idling && this._queue.length < this.options.maxConnections) {
+            this.idling = true;
+            this.emit('idle');
+        }
+
+        let entry = (connection.queueEntry = this._queue.shift());
+        entry.messageId = (connection.queueEntry.mail.message.getHeader('message-id') || '').replace(/[<>\s]/g, '');
+
+        connection.available = false;
+
+        this.logger.debug(
+            {
+                tnx: 'pool',
+                cid: connection.id,
+                messageId: entry.messageId,
+                action: 'assign'
+            },
+            'Assigned message <%s> to #%s (%s)',
+            entry.messageId,
+            connection.id,
+            connection.messages + 1
+        );
+
+        if (this._rateLimit.limit) {
+            this._rateLimit.counter++;
+            if (!this._rateLimit.checkpoint) {
+                this._rateLimit.checkpoint = Date.now();
+            }
+        }
+
+        connection.send(entry.mail, (err, info) => {
+            // only process callback if current handler is not changed
+            if (entry === connection.queueEntry) {
+                try {
+                    entry.callback(err, info);
+                } catch (E) {
+                    this.logger.error(
+                        {
+                            err: E,
+                            tnx: 'callback',
+                            cid: connection.id
+                        },
+                        'Callback error for #%s: %s',
+                        connection.id,
+                        E.message
+                    );
+                }
+                connection.queueEntry = false;
+            }
+        });
+    }
+
+    /**
+     * Creates a new pool resource
+     */
+    _createConnection() {
+        let connection = new PoolResource(this);
+
+        connection.id = ++this._connectionCounter;
+
+        this.logger.info(
+            {
+                tnx: 'pool',
+                cid: connection.id,
+                action: 'conection'
+            },
+            'Created new pool resource #%s',
+            connection.id
+        );
+
+        // resource comes available
+        connection.on('available', () => {
+            this.logger.debug(
+                {
+                    tnx: 'connection',
+                    cid: connection.id,
+                    action: 'available'
+                },
+                'Connection #%s became available',
+                connection.id
+            );
+
+            if (this._closed) {
+                // if already closed run close() that will remove this connections from connections list
+                this.close();
+            } else {
+                // check if there's anything else to send
+                this._processMessages();
+            }
+        });
+
+        // resource is terminated with an error
+        connection.once('error', err => {
+            if (err.code !== 'EMAXLIMIT') {
+                this.logger.error(
+                    {
+                        err,
+                        tnx: 'pool',
+                        cid: connection.id
+                    },
+                    'Pool Error for #%s: %s',
+                    connection.id,
+                    err.message
+                );
+            } else {
+                this.logger.debug(
+                    {
+                        tnx: 'pool',
+                        cid: connection.id,
+                        action: 'maxlimit'
+                    },
+                    'Max messages limit exchausted for #%s',
+                    connection.id
+                );
+            }
+
+            if (connection.queueEntry) {
+                try {
+                    connection.queueEntry.callback(err);
+                } catch (E) {
+                    this.logger.error(
+                        {
+                            err: E,
+                            tnx: 'callback',
+                            cid: connection.id
+                        },
+                        'Callback error for #%s: %s',
+                        connection.id,
+                        E.message
+                    );
+                }
+                connection.queueEntry = false;
+            }
+
+            // remove the erroneus connection from connections list
+            this._removeConnection(connection);
+
+            this._continueProcessing();
+        });
+
+        connection.once('close', () => {
+            this.logger.info(
+                {
+                    tnx: 'connection',
+                    cid: connection.id,
+                    action: 'closed'
+                },
+                'Connection #%s was closed',
+                connection.id
+            );
+
+            this._removeConnection(connection);
+
+            if (connection.queueEntry) {
+                // If the connection closed when sending, add the message to the queue again
+                // if max number of requeues is not reached yet
+                // Note that we must wait a bit.. because the callback of the 'error' handler might be called
+                // in the next event loop
+                setTimeout(() => {
+                    if (connection.queueEntry) {
+                        if (this._shouldRequeuOnConnectionClose(connection.queueEntry)) {
+                            this._requeueEntryOnConnectionClose(connection);
+                        } else {
+                            this._failDeliveryOnConnectionClose(connection);
+                        }
+                    }
+                    this._continueProcessing();
+                }, 50);
+            } else {
+                this._continueProcessing();
+            }
+        });
+
+        this._connections.push(connection);
+
+        return connection;
+    }
+
+    _shouldRequeuOnConnectionClose(queueEntry) {
+        if (this.options.maxRequeues === undefined || this.options.maxRequeues < 0) {
+            return true;
+        }
+
+        return queueEntry.requeueAttempts < this.options.maxRequeues;
+    }
+
+    _failDeliveryOnConnectionClose(connection) {
+        if (connection.queueEntry && connection.queueEntry.callback) {
+            try {
+                connection.queueEntry.callback(new Error('Reached maximum number of retries after connection was closed'));
+            } catch (E) {
+                this.logger.error(
+                    {
+                        err: E,
+                        tnx: 'callback',
+                        messageId: connection.queueEntry.messageId,
+                        cid: connection.id
+                    },
+                    'Callback error for #%s: %s',
+                    connection.id,
+                    E.message
+                );
+            }
+            connection.queueEntry = false;
+        }
+    }
+
+    _requeueEntryOnConnectionClose(connection) {
+        connection.queueEntry.requeueAttempts = connection.queueEntry.requeueAttempts + 1;
+        this.logger.debug(
+            {
+                tnx: 'pool',
+                cid: connection.id,
+                messageId: connection.queueEntry.messageId,
+                action: 'requeue'
+            },
+            'Re-queued message <%s> for #%s. Attempt: #%s',
+            connection.queueEntry.messageId,
+            connection.id,
+            connection.queueEntry.requeueAttempts
+        );
+        this._queue.unshift(connection.queueEntry);
+        connection.queueEntry = false;
+    }
+
+    /**
+     * Continue to process message if the pool hasn't closed
+     */
+    _continueProcessing() {
+        if (this._closed) {
+            this.close();
+        } else {
+            setTimeout(() => this._processMessages(), 100);
+        }
+    }
+
+    /**
+     * Remove resource from pool
+     *
+     * @param {Object} connection The PoolResource to remove
+     */
+    _removeConnection(connection) {
+        let index = this._connections.indexOf(connection);
+
+        if (index !== -1) {
+            this._connections.splice(index, 1);
+        }
+    }
+
+    /**
+     * Checks if connections have hit current rate limit and if so, queues the availability callback
+     *
+     * @param {Function} callback Callback function to run once rate limiter has been cleared
+     */
+    _checkRateLimit(callback) {
+        if (!this._rateLimit.limit) {
+            return callback();
+        }
+
+        let now = Date.now();
+
+        if (this._rateLimit.counter < this._rateLimit.limit) {
+            return callback();
+        }
+
+        this._rateLimit.waiting.push(callback);
+
+        if (this._rateLimit.checkpoint <= now - this._rateLimit.delta) {
+            return this._clearRateLimit();
+        } else if (!this._rateLimit.timeout) {
+            this._rateLimit.timeout = setTimeout(() => this._clearRateLimit(), this._rateLimit.delta - (now - this._rateLimit.checkpoint));
+            this._rateLimit.checkpoint = now;
+        }
+    }
+
+    /**
+     * Clears current rate limit limitation and runs paused callback
+     */
+    _clearRateLimit() {
+        clearTimeout(this._rateLimit.timeout);
+        this._rateLimit.timeout = null;
+        this._rateLimit.counter = 0;
+        this._rateLimit.checkpoint = false;
+
+        // resume all paused connections
+        while (this._rateLimit.waiting.length) {
+            let cb = this._rateLimit.waiting.shift();
+            setImmediate(cb);
+        }
+    }
+
+    /**
+     * Returns true if there are free slots in the queue
+     */
+    isIdle() {
+        return this.idling;
+    }
+
+    /**
+     * Verifies SMTP configuration
+     *
+     * @param {Function} callback Callback function
+     */
+    verify(callback) {
+        let promise;
+
+        if (!callback) {
+            promise = new Promise((resolve, reject) => {
+                callback = shared.callbackPromise(resolve, reject);
+            });
+        }
+
+        let auth = new PoolResource(this).auth;
+
+        this.getSocket(this.options, (err, socketOptions) => {
+            if (err) {
+                return callback(err);
+            }
+
+            let options = this.options;
+            if (socketOptions && socketOptions.connection) {
+                this.logger.info(
+                    {
+                        tnx: 'proxy',
+                        remoteAddress: socketOptions.connection.remoteAddress,
+                        remotePort: socketOptions.connection.remotePort,
+                        destHost: options.host || '',
+                        destPort: options.port || '',
+                        action: 'connected'
+                    },
+                    'Using proxied socket from %s:%s to %s:%s',
+                    socketOptions.connection.remoteAddress,
+                    socketOptions.connection.remotePort,
+                    options.host || '',
+                    options.port || ''
+                );
+                options = shared.assign(false, options);
+                Object.keys(socketOptions).forEach(key => {
+                    options[key] = socketOptions[key];
+                });
+            }
+
+            let connection = new SMTPConnection(options);
+            let returned = false;
+
+            connection.once('error', err => {
+                if (returned) {
+                    return;
+                }
+                returned = true;
+                connection.close();
+                return callback(err);
+            });
+
+            connection.once('end', () => {
+                if (returned) {
+                    return;
+                }
+                returned = true;
+                return callback(new Error('Connection closed'));
+            });
+
+            let finalize = () => {
+                if (returned) {
+                    return;
+                }
+                returned = true;
+                connection.quit();
+                return callback(null, true);
+            };
+
+            connection.connect(() => {
+                if (returned) {
+                    return;
+                }
+
+                if (auth && (connection.allowsAuth || options.forceAuth)) {
+                    connection.login(auth, err => {
+                        if (returned) {
+                            return;
+                        }
+
+                        if (err) {
+                            returned = true;
+                            connection.close();
+                            return callback(err);
+                        }
+
+                        finalize();
+                    });
+                } else if (!auth && connection.allowsAuth && options.forceAuth) {
+                    let err = new Error('Authentication info was not provided');
+                    err.code = 'NoAuth';
+
+                    returned = true;
+                    connection.close();
+                    return callback(err);
+                } else {
+                    finalize();
+                }
+            });
+        });
+
+        return promise;
+    }
+}
+
+// expose to the world
+module.exports = SMTPPool;
diff --git a/backend/node_modules/nodemailer/lib/smtp-pool/pool-resource.js b/backend/node_modules/nodemailer/lib/smtp-pool/pool-resource.js
new file mode 100644
index 0000000..d67cc5c
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/smtp-pool/pool-resource.js
@@ -0,0 +1,253 @@
+'use strict';
+
+const SMTPConnection = require('../smtp-connection');
+const assign = require('../shared').assign;
+const XOAuth2 = require('../xoauth2');
+const EventEmitter = require('events');
+
+/**
+ * Creates an element for the pool
+ *
+ * @constructor
+ * @param {Object} options SMTPPool instance
+ */
+class PoolResource extends EventEmitter {
+    constructor(pool) {
+        super();
+
+        this.pool = pool;
+        this.options = pool.options;
+        this.logger = this.pool.logger;
+
+        if (this.options.auth) {
+            switch ((this.options.auth.type || '').toString().toUpperCase()) {
+                case 'OAUTH2': {
+                    let oauth2 = new XOAuth2(this.options.auth, this.logger);
+                    oauth2.provisionCallback = (this.pool.mailer && this.pool.mailer.get('oauth2_provision_cb')) || oauth2.provisionCallback;
+                    this.auth = {
+                        type: 'OAUTH2',
+                        user: this.options.auth.user,
+                        oauth2,
+                        method: 'XOAUTH2'
+                    };
+                    oauth2.on('token', token => this.pool.mailer.emit('token', token));
+                    oauth2.on('error', err => this.emit('error', err));
+                    break;
+                }
+                default:
+                    if (!this.options.auth.user && !this.options.auth.pass) {
+                        break;
+                    }
+                    this.auth = {
+                        type: (this.options.auth.type || '').toString().toUpperCase() || 'LOGIN',
+                        user: this.options.auth.user,
+                        credentials: {
+                            user: this.options.auth.user || '',
+                            pass: this.options.auth.pass,
+                            options: this.options.auth.options
+                        },
+                        method: (this.options.auth.method || '').trim().toUpperCase() || this.options.authMethod || false
+                    };
+            }
+        }
+
+        this._connection = false;
+        this._connected = false;
+
+        this.messages = 0;
+        this.available = true;
+    }
+
+    /**
+     * Initiates a connection to the SMTP server
+     *
+     * @param {Function} callback Callback function to run once the connection is established or failed
+     */
+    connect(callback) {
+        this.pool.getSocket(this.options, (err, socketOptions) => {
+            if (err) {
+                return callback(err);
+            }
+
+            let returned = false;
+            let options = this.options;
+            if (socketOptions && socketOptions.connection) {
+                this.logger.info(
+                    {
+                        tnx: 'proxy',
+                        remoteAddress: socketOptions.connection.remoteAddress,
+                        remotePort: socketOptions.connection.remotePort,
+                        destHost: options.host || '',
+                        destPort: options.port || '',
+                        action: 'connected'
+                    },
+                    'Using proxied socket from %s:%s to %s:%s',
+                    socketOptions.connection.remoteAddress,
+                    socketOptions.connection.remotePort,
+                    options.host || '',
+                    options.port || ''
+                );
+
+                options = assign(false, options);
+                Object.keys(socketOptions).forEach(key => {
+                    options[key] = socketOptions[key];
+                });
+            }
+
+            this.connection = new SMTPConnection(options);
+
+            this.connection.once('error', err => {
+                this.emit('error', err);
+                if (returned) {
+                    return;
+                }
+                returned = true;
+                return callback(err);
+            });
+
+            this.connection.once('end', () => {
+                this.close();
+                if (returned) {
+                    return;
+                }
+                returned = true;
+
+                let timer = setTimeout(() => {
+                    if (returned) {
+                        return;
+                    }
+                    // still have not returned, this means we have an unexpected connection close
+                    let err = new Error('Unexpected socket close');
+                    if (this.connection && this.connection._socket && this.connection._socket.upgrading) {
+                        // starttls connection errors
+                        err.code = 'ETLS';
+                    }
+                    callback(err);
+                }, 1000);
+
+                try {
+                    timer.unref();
+                } catch (E) {
+                    // Ignore. Happens on envs with non-node timer implementation
+                }
+            });
+
+            this.connection.connect(() => {
+                if (returned) {
+                    return;
+                }
+
+                if (this.auth && (this.connection.allowsAuth || options.forceAuth)) {
+                    this.connection.login(this.auth, err => {
+                        if (returned) {
+                            return;
+                        }
+                        returned = true;
+
+                        if (err) {
+                            this.connection.close();
+                            this.emit('error', err);
+                            return callback(err);
+                        }
+
+                        this._connected = true;
+                        callback(null, true);
+                    });
+                } else {
+                    returned = true;
+                    this._connected = true;
+                    return callback(null, true);
+                }
+            });
+        });
+    }
+
+    /**
+     * Sends an e-mail to be sent using the selected settings
+     *
+     * @param {Object} mail Mail object
+     * @param {Function} callback Callback function
+     */
+    send(mail, callback) {
+        if (!this._connected) {
+            return this.connect(err => {
+                if (err) {
+                    return callback(err);
+                }
+                return this.send(mail, callback);
+            });
+        }
+
+        let envelope = mail.message.getEnvelope();
+        let messageId = mail.message.messageId();
+
+        let recipients = [].concat(envelope.to || []);
+        if (recipients.length > 3) {
+            recipients.push('...and ' + recipients.splice(2).length + ' more');
+        }
+        this.logger.info(
+            {
+                tnx: 'send',
+                messageId,
+                cid: this.id
+            },
+            'Sending message %s using #%s to <%s>',
+            messageId,
+            this.id,
+            recipients.join(', ')
+        );
+
+        if (mail.data.dsn) {
+            envelope.dsn = mail.data.dsn;
+        }
+
+        this.connection.send(envelope, mail.message.createReadStream(), (err, info) => {
+            this.messages++;
+
+            if (err) {
+                this.connection.close();
+                this.emit('error', err);
+                return callback(err);
+            }
+
+            info.envelope = {
+                from: envelope.from,
+                to: envelope.to
+            };
+            info.messageId = messageId;
+
+            setImmediate(() => {
+                let err;
+                if (this.messages >= this.options.maxMessages) {
+                    err = new Error('Resource exhausted');
+                    err.code = 'EMAXLIMIT';
+                    this.connection.close();
+                    this.emit('error', err);
+                } else {
+                    this.pool._checkRateLimit(() => {
+                        this.available = true;
+                        this.emit('available');
+                    });
+                }
+            });
+
+            callback(null, info);
+        });
+    }
+
+    /**
+     * Closes the connection
+     */
+    close() {
+        this._connected = false;
+        if (this.auth && this.auth.oauth2) {
+            this.auth.oauth2.removeAllListeners();
+        }
+        if (this.connection) {
+            this.connection.close();
+        }
+        this.emit('close');
+    }
+}
+
+module.exports = PoolResource;
diff --git a/backend/node_modules/nodemailer/lib/smtp-transport/index.js b/backend/node_modules/nodemailer/lib/smtp-transport/index.js
new file mode 100644
index 0000000..a1c45a5
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/smtp-transport/index.js
@@ -0,0 +1,416 @@
+'use strict';
+
+const EventEmitter = require('events');
+const SMTPConnection = require('../smtp-connection');
+const wellKnown = require('../well-known');
+const shared = require('../shared');
+const XOAuth2 = require('../xoauth2');
+const packageData = require('../../package.json');
+
+/**
+ * Creates a SMTP transport object for Nodemailer
+ *
+ * @constructor
+ * @param {Object} options Connection options
+ */
+class SMTPTransport extends EventEmitter {
+    constructor(options) {
+        super();
+
+        options = options || {};
+
+        if (typeof options === 'string') {
+            options = {
+                url: options
+            };
+        }
+
+        let urlData;
+        let service = options.service;
+
+        if (typeof options.getSocket === 'function') {
+            this.getSocket = options.getSocket;
+        }
+
+        if (options.url) {
+            urlData = shared.parseConnectionUrl(options.url);
+            service = service || urlData.service;
+        }
+
+        this.options = shared.assign(
+            false, // create new object
+            options, // regular options
+            urlData, // url options
+            service && wellKnown(service) // wellknown options
+        );
+
+        this.logger = shared.getLogger(this.options, {
+            component: this.options.component || 'smtp-transport'
+        });
+
+        // temporary object
+        let connection = new SMTPConnection(this.options);
+
+        this.name = 'SMTP';
+        this.version = packageData.version + '[client:' + connection.version + ']';
+
+        if (this.options.auth) {
+            this.auth = this.getAuth({});
+        }
+    }
+
+    /**
+     * Placeholder function for creating proxy sockets. This method immediatelly returns
+     * without a socket
+     *
+     * @param {Object} options Connection options
+     * @param {Function} callback Callback function to run with the socket keys
+     */
+    getSocket(options, callback) {
+        // return immediatelly
+        return setImmediate(() => callback(null, false));
+    }
+
+    getAuth(authOpts) {
+        if (!authOpts) {
+            return this.auth;
+        }
+
+        let hasAuth = false;
+        let authData = {};
+
+        if (this.options.auth && typeof this.options.auth === 'object') {
+            Object.keys(this.options.auth).forEach(key => {
+                hasAuth = true;
+                authData[key] = this.options.auth[key];
+            });
+        }
+
+        if (authOpts && typeof authOpts === 'object') {
+            Object.keys(authOpts).forEach(key => {
+                hasAuth = true;
+                authData[key] = authOpts[key];
+            });
+        }
+
+        if (!hasAuth) {
+            return false;
+        }
+
+        switch ((authData.type || '').toString().toUpperCase()) {
+            case 'OAUTH2': {
+                if (!authData.service && !authData.user) {
+                    return false;
+                }
+                let oauth2 = new XOAuth2(authData, this.logger);
+                oauth2.provisionCallback = (this.mailer && this.mailer.get('oauth2_provision_cb')) || oauth2.provisionCallback;
+                oauth2.on('token', token => this.mailer.emit('token', token));
+                oauth2.on('error', err => this.emit('error', err));
+                return {
+                    type: 'OAUTH2',
+                    user: authData.user,
+                    oauth2,
+                    method: 'XOAUTH2'
+                };
+            }
+            default:
+                return {
+                    type: (authData.type || '').toString().toUpperCase() || 'LOGIN',
+                    user: authData.user,
+                    credentials: {
+                        user: authData.user || '',
+                        pass: authData.pass,
+                        options: authData.options
+                    },
+                    method: (authData.method || '').trim().toUpperCase() || this.options.authMethod || false
+                };
+        }
+    }
+
+    /**
+     * Sends an e-mail using the selected settings
+     *
+     * @param {Object} mail Mail object
+     * @param {Function} callback Callback function
+     */
+    send(mail, callback) {
+        this.getSocket(this.options, (err, socketOptions) => {
+            if (err) {
+                return callback(err);
+            }
+
+            let returned = false;
+            let options = this.options;
+            if (socketOptions && socketOptions.connection) {
+                this.logger.info(
+                    {
+                        tnx: 'proxy',
+                        remoteAddress: socketOptions.connection.remoteAddress,
+                        remotePort: socketOptions.connection.remotePort,
+                        destHost: options.host || '',
+                        destPort: options.port || '',
+                        action: 'connected'
+                    },
+                    'Using proxied socket from %s:%s to %s:%s',
+                    socketOptions.connection.remoteAddress,
+                    socketOptions.connection.remotePort,
+                    options.host || '',
+                    options.port || ''
+                );
+
+                // only copy options if we need to modify it
+                options = shared.assign(false, options);
+                Object.keys(socketOptions).forEach(key => {
+                    options[key] = socketOptions[key];
+                });
+            }
+
+            let connection = new SMTPConnection(options);
+
+            connection.once('error', err => {
+                if (returned) {
+                    return;
+                }
+                returned = true;
+                connection.close();
+                return callback(err);
+            });
+
+            connection.once('end', () => {
+                if (returned) {
+                    return;
+                }
+
+                let timer = setTimeout(() => {
+                    if (returned) {
+                        return;
+                    }
+                    returned = true;
+                    // still have not returned, this means we have an unexpected connection close
+                    let err = new Error('Unexpected socket close');
+                    if (connection && connection._socket && connection._socket.upgrading) {
+                        // starttls connection errors
+                        err.code = 'ETLS';
+                    }
+                    callback(err);
+                }, 1000);
+
+                try {
+                    timer.unref();
+                } catch (E) {
+                    // Ignore. Happens on envs with non-node timer implementation
+                }
+            });
+
+            let sendMessage = () => {
+                let envelope = mail.message.getEnvelope();
+                let messageId = mail.message.messageId();
+
+                let recipients = [].concat(envelope.to || []);
+                if (recipients.length > 3) {
+                    recipients.push('...and ' + recipients.splice(2).length + ' more');
+                }
+
+                if (mail.data.dsn) {
+                    envelope.dsn = mail.data.dsn;
+                }
+
+                this.logger.info(
+                    {
+                        tnx: 'send',
+                        messageId
+                    },
+                    'Sending message %s to <%s>',
+                    messageId,
+                    recipients.join(', ')
+                );
+
+                connection.send(envelope, mail.message.createReadStream(), (err, info) => {
+                    returned = true;
+                    connection.close();
+                    if (err) {
+                        this.logger.error(
+                            {
+                                err,
+                                tnx: 'send'
+                            },
+                            'Send error for %s: %s',
+                            messageId,
+                            err.message
+                        );
+                        return callback(err);
+                    }
+                    info.envelope = {
+                        from: envelope.from,
+                        to: envelope.to
+                    };
+                    info.messageId = messageId;
+                    try {
+                        return callback(null, info);
+                    } catch (E) {
+                        this.logger.error(
+                            {
+                                err: E,
+                                tnx: 'callback'
+                            },
+                            'Callback error for %s: %s',
+                            messageId,
+                            E.message
+                        );
+                    }
+                });
+            };
+
+            connection.connect(() => {
+                if (returned) {
+                    return;
+                }
+
+                let auth = this.getAuth(mail.data.auth);
+
+                if (auth && (connection.allowsAuth || options.forceAuth)) {
+                    connection.login(auth, err => {
+                        if (auth && auth !== this.auth && auth.oauth2) {
+                            auth.oauth2.removeAllListeners();
+                        }
+                        if (returned) {
+                            return;
+                        }
+
+                        if (err) {
+                            returned = true;
+                            connection.close();
+                            return callback(err);
+                        }
+
+                        sendMessage();
+                    });
+                } else {
+                    sendMessage();
+                }
+            });
+        });
+    }
+
+    /**
+     * Verifies SMTP configuration
+     *
+     * @param {Function} callback Callback function
+     */
+    verify(callback) {
+        let promise;
+
+        if (!callback) {
+            promise = new Promise((resolve, reject) => {
+                callback = shared.callbackPromise(resolve, reject);
+            });
+        }
+
+        this.getSocket(this.options, (err, socketOptions) => {
+            if (err) {
+                return callback(err);
+            }
+
+            let options = this.options;
+            if (socketOptions && socketOptions.connection) {
+                this.logger.info(
+                    {
+                        tnx: 'proxy',
+                        remoteAddress: socketOptions.connection.remoteAddress,
+                        remotePort: socketOptions.connection.remotePort,
+                        destHost: options.host || '',
+                        destPort: options.port || '',
+                        action: 'connected'
+                    },
+                    'Using proxied socket from %s:%s to %s:%s',
+                    socketOptions.connection.remoteAddress,
+                    socketOptions.connection.remotePort,
+                    options.host || '',
+                    options.port || ''
+                );
+
+                options = shared.assign(false, options);
+                Object.keys(socketOptions).forEach(key => {
+                    options[key] = socketOptions[key];
+                });
+            }
+
+            let connection = new SMTPConnection(options);
+            let returned = false;
+
+            connection.once('error', err => {
+                if (returned) {
+                    return;
+                }
+                returned = true;
+                connection.close();
+                return callback(err);
+            });
+
+            connection.once('end', () => {
+                if (returned) {
+                    return;
+                }
+                returned = true;
+                return callback(new Error('Connection closed'));
+            });
+
+            let finalize = () => {
+                if (returned) {
+                    return;
+                }
+                returned = true;
+                connection.quit();
+                return callback(null, true);
+            };
+
+            connection.connect(() => {
+                if (returned) {
+                    return;
+                }
+
+                let authData = this.getAuth({});
+
+                if (authData && (connection.allowsAuth || options.forceAuth)) {
+                    connection.login(authData, err => {
+                        if (returned) {
+                            return;
+                        }
+
+                        if (err) {
+                            returned = true;
+                            connection.close();
+                            return callback(err);
+                        }
+
+                        finalize();
+                    });
+                } else if (!authData && connection.allowsAuth && options.forceAuth) {
+                    let err = new Error('Authentication info was not provided');
+                    err.code = 'NoAuth';
+
+                    returned = true;
+                    connection.close();
+                    return callback(err);
+                } else {
+                    finalize();
+                }
+            });
+        });
+
+        return promise;
+    }
+
+    /**
+     * Releases resources
+     */
+    close() {
+        if (this.auth && this.auth.oauth2) {
+            this.auth.oauth2.removeAllListeners();
+        }
+        this.emit('close');
+    }
+}
+
+// expose to the world
+module.exports = SMTPTransport;
diff --git a/backend/node_modules/nodemailer/lib/stream-transport/index.js b/backend/node_modules/nodemailer/lib/stream-transport/index.js
new file mode 100644
index 0000000..1921469
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/stream-transport/index.js
@@ -0,0 +1,135 @@
+'use strict';
+
+const packageData = require('../../package.json');
+const shared = require('../shared');
+
+/**
+ * Generates a Transport object for streaming
+ *
+ * Possible options can be the following:
+ *
+ *  * **buffer** if true, then returns the message as a Buffer object instead of a stream
+ *  * **newline** either 'windows' or 'unix'
+ *
+ * @constructor
+ * @param {Object} optional config parameter
+ */
+class StreamTransport {
+    constructor(options) {
+        options = options || {};
+
+        this.options = options || {};
+
+        this.name = 'StreamTransport';
+        this.version = packageData.version;
+
+        this.logger = shared.getLogger(this.options, {
+            component: this.options.component || 'stream-transport'
+        });
+
+        this.winbreak = ['win', 'windows', 'dos', '\r\n'].includes((options.newline || '').toString().toLowerCase());
+    }
+
+    /**
+     * Compiles a mailcomposer message and forwards it to handler that sends it
+     *
+     * @param {Object} emailMessage MailComposer object
+     * @param {Function} callback Callback function to run when the sending is completed
+     */
+    send(mail, done) {
+        // We probably need this in the output
+        mail.message.keepBcc = true;
+
+        let envelope = mail.data.envelope || mail.message.getEnvelope();
+        let messageId = mail.message.messageId();
+
+        let recipients = [].concat(envelope.to || []);
+        if (recipients.length > 3) {
+            recipients.push('...and ' + recipients.splice(2).length + ' more');
+        }
+        this.logger.info(
+            {
+                tnx: 'send',
+                messageId
+            },
+            'Sending message %s to <%s> using %s line breaks',
+            messageId,
+            recipients.join(', '),
+            this.winbreak ? '<CR><LF>' : '<LF>'
+        );
+
+        setImmediate(() => {
+            let stream;
+
+            try {
+                stream = mail.message.createReadStream();
+            } catch (E) {
+                this.logger.error(
+                    {
+                        err: E,
+                        tnx: 'send',
+                        messageId
+                    },
+                    'Creating send stream failed for %s. %s',
+                    messageId,
+                    E.message
+                );
+                return done(E);
+            }
+
+            if (!this.options.buffer) {
+                stream.once('error', err => {
+                    this.logger.error(
+                        {
+                            err,
+                            tnx: 'send',
+                            messageId
+                        },
+                        'Failed creating message for %s. %s',
+                        messageId,
+                        err.message
+                    );
+                });
+                return done(null, {
+                    envelope: mail.data.envelope || mail.message.getEnvelope(),
+                    messageId,
+                    message: stream
+                });
+            }
+
+            let chunks = [];
+            let chunklen = 0;
+            stream.on('readable', () => {
+                let chunk;
+                while ((chunk = stream.read()) !== null) {
+                    chunks.push(chunk);
+                    chunklen += chunk.length;
+                }
+            });
+
+            stream.once('error', err => {
+                this.logger.error(
+                    {
+                        err,
+                        tnx: 'send',
+                        messageId
+                    },
+                    'Failed creating message for %s. %s',
+                    messageId,
+                    err.message
+                );
+                return done(err);
+            });
+
+            stream.on('end', () =>
+                done(null, {
+                    envelope: mail.data.envelope || mail.message.getEnvelope(),
+                    messageId,
+                    message: Buffer.concat(chunks, chunklen)
+                })
+            );
+        });
+    }
+}
+
+module.exports = StreamTransport;
diff --git a/backend/node_modules/nodemailer/lib/well-known/index.js b/backend/node_modules/nodemailer/lib/well-known/index.js
new file mode 100644
index 0000000..9fdc28f
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/well-known/index.js
@@ -0,0 +1,47 @@
+'use strict';
+
+const services = require('./services.json');
+const normalized = {};
+
+Object.keys(services).forEach(key => {
+    let service = services[key];
+
+    normalized[normalizeKey(key)] = normalizeService(service);
+
+    [].concat(service.aliases || []).forEach(alias => {
+        normalized[normalizeKey(alias)] = normalizeService(service);
+    });
+
+    [].concat(service.domains || []).forEach(domain => {
+        normalized[normalizeKey(domain)] = normalizeService(service);
+    });
+});
+
+function normalizeKey(key) {
+    return key.replace(/[^a-zA-Z0-9.-]/g, '').toLowerCase();
+}
+
+function normalizeService(service) {
+    let filter = ['domains', 'aliases'];
+    let response = {};
+
+    Object.keys(service).forEach(key => {
+        if (filter.indexOf(key) < 0) {
+            response[key] = service[key];
+        }
+    });
+
+    return response;
+}
+
+/**
+ * Resolves SMTP config for given key. Key can be a name (like 'Gmail'), alias (like 'Google Mail') or
+ * an email address (like 'test@googlemail.com').
+ *
+ * @param {String} key [description]
+ * @returns {Object} SMTP config or false if not found
+ */
+module.exports = function (key) {
+    key = normalizeKey(key.split('@').pop());
+    return normalized[key] || false;
+};
diff --git a/backend/node_modules/nodemailer/lib/well-known/services.json b/backend/node_modules/nodemailer/lib/well-known/services.json
new file mode 100644
index 0000000..e41774e
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/well-known/services.json
@@ -0,0 +1,370 @@
+{
+    "1und1": {
+        "host": "smtp.1und1.de",
+        "port": 465,
+        "secure": true,
+        "authMethod": "LOGIN"
+    },
+    
+    "Aliyun": {
+        "domains": ["aliyun.com"],
+        "host": "smtp.aliyun.com",
+        "port": 465,
+        "secure": true
+    },
+    
+    "AOL": {
+        "domains": ["aol.com"],
+        "host": "smtp.aol.com",
+        "port": 587
+    },
+
+    "Bluewin": {
+        "host": "smtpauths.bluewin.ch",
+        "domains": ["bluewin.ch"],
+        "port": 465
+    },
+
+    "DebugMail": {
+        "host": "debugmail.io",
+        "port": 25
+    },
+
+    "DynectEmail": {
+        "aliases": ["Dynect"],
+        "host": "smtp.dynect.net",
+        "port": 25
+    },
+
+    "Ethereal": {
+        "aliases": ["ethereal.email"],
+        "host": "smtp.ethereal.email",
+        "port": 587
+    },
+
+    "FastMail": {
+        "domains": ["fastmail.fm"],
+        "host": "smtp.fastmail.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "Forward Email": {
+        "aliases": ["FE", "ForwardEmail"],
+        "domains": ["forwardemail.net"],
+        "host": "smtp.forwardemail.net",
+        "port": 465,
+        "secure": true
+    },
+
+    "Feishu Mail": {
+        "aliases": ["Feishu", "FeishuMail"],
+        "domains": ["www.feishu.cn"],
+        "host": "smtp.feishu.cn",
+        "port": 465,
+        "secure": true
+    },
+
+    "GandiMail": {
+        "aliases": ["Gandi", "Gandi Mail"],
+        "host": "mail.gandi.net",
+        "port": 587
+    },
+
+    "Gmail": {
+        "aliases": ["Google Mail"],
+        "domains": ["gmail.com", "googlemail.com"],
+        "host": "smtp.gmail.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "Godaddy": {
+        "host": "smtpout.secureserver.net",
+        "port": 25
+    },
+
+    "GodaddyAsia": {
+        "host": "smtp.asia.secureserver.net",
+        "port": 25
+    },
+
+    "GodaddyEurope": {
+        "host": "smtp.europe.secureserver.net",
+        "port": 25
+    },
+
+    "hot.ee": {
+        "host": "mail.hot.ee"
+    },
+
+    "Hotmail": {
+        "aliases": ["Outlook", "Outlook.com", "Hotmail.com"],
+        "domains": ["hotmail.com", "outlook.com"],
+        "host": "smtp-mail.outlook.com",
+        "port": 587
+    },
+
+    "iCloud": {
+        "aliases": ["Me", "Mac"],
+        "domains": ["me.com", "mac.com"],
+        "host": "smtp.mail.me.com",
+        "port": 587
+    },
+
+    "Infomaniak": {
+        "host": "mail.infomaniak.com",
+        "domains": ["ik.me", "ikmail.com", "etik.com"],
+        "port": 587
+    },
+    "Loopia": {
+        "host": "mailcluster.loopia.se",
+        "port": 465
+    },
+    "mail.ee": {
+        "host": "smtp.mail.ee"
+    },
+
+    "Mail.ru": {
+        "host": "smtp.mail.ru",
+        "port": 465,
+        "secure": true
+    },
+
+    "Mailcatch.app": {
+        "host": "sandbox-smtp.mailcatch.app",
+        "port": 2525
+    },
+
+    "Maildev": {
+        "port": 1025,
+        "ignoreTLS": true
+    },
+
+    "Mailgun": {
+        "host": "smtp.mailgun.org",
+        "port": 465,
+        "secure": true
+    },
+
+    "Mailjet": {
+        "host": "in.mailjet.com",
+        "port": 587
+    },
+
+    "Mailosaur": {
+        "host": "mailosaur.io",
+        "port": 25
+    },
+
+    "Mailtrap": {
+        "host": "live.smtp.mailtrap.io",
+        "port": 587
+    },
+
+    "Mandrill": {
+        "host": "smtp.mandrillapp.com",
+        "port": 587
+    },
+
+    "Naver": {
+        "host": "smtp.naver.com",
+        "port": 587
+    },
+
+    "One": {
+        "host": "send.one.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "OpenMailBox": {
+        "aliases": ["OMB", "openmailbox.org"],
+        "host": "smtp.openmailbox.org",
+        "port": 465,
+        "secure": true
+    },
+
+    "Outlook365": {
+        "host": "smtp.office365.com",
+        "port": 587,
+        "secure": false
+    },
+
+    "OhMySMTP": {
+        "host": "smtp.ohmysmtp.com",
+        "port": 587,
+        "secure": false
+    },
+
+    "Postmark": {
+        "aliases": ["PostmarkApp"],
+        "host": "smtp.postmarkapp.com",
+        "port": 2525
+    },
+
+    "Proton": {
+        "aliases": ["ProtonMail", "Proton.me", "Protonmail.com", "Protonmail.ch"],
+        "domains": ["proton.me", "protonmail.com", "pm.me", "protonmail.ch"],
+        "host": "smtp.protonmail.ch",
+        "port": 587,
+        "requireTLS": true
+    },
+
+    "qiye.aliyun": {
+        "host": "smtp.mxhichina.com",
+        "port": "465",
+        "secure": true
+    },
+
+    "QQ": {
+        "domains": ["qq.com"],
+        "host": "smtp.qq.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "QQex": {
+        "aliases": ["QQ Enterprise"],
+        "domains": ["exmail.qq.com"],
+        "host": "smtp.exmail.qq.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SendCloud": {
+        "host": "smtp.sendcloud.net",
+        "port": 2525
+    },
+
+    "SendGrid": {
+        "host": "smtp.sendgrid.net",
+        "port": 587
+    },
+
+    "SendinBlue": {
+        "aliases": ["Brevo"],
+        "host": "smtp-relay.brevo.com",
+        "port": 587
+    },
+
+    "SendPulse": {
+        "host": "smtp-pulse.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES": {
+        "host": "email-smtp.us-east-1.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-US-EAST-1": {
+        "host": "email-smtp.us-east-1.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-US-WEST-2": {
+        "host": "email-smtp.us-west-2.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-EU-WEST-1": {
+        "host": "email-smtp.eu-west-1.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-AP-SOUTH-1": {
+        "host": "email-smtp.ap-south-1.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-AP-NORTHEAST-1": {
+        "host": "email-smtp.ap-northeast-1.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-AP-NORTHEAST-2": {
+        "host": "email-smtp.ap-northeast-2.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-AP-NORTHEAST-3": {
+        "host": "email-smtp.ap-northeast-3.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-AP-SOUTHEAST-1": {
+        "host": "email-smtp.ap-southeast-1.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "SES-AP-SOUTHEAST-2": {
+        "host": "email-smtp.ap-southeast-2.amazonaws.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "Seznam": {
+        "aliases": ["Seznam Email"],
+        "domains": ["seznam.cz", "email.cz", "post.cz", "spoluzaci.cz"],
+        "host": "smtp.seznam.cz",
+        "port": 465,
+        "secure": true
+    },
+
+    "Sparkpost": {
+        "aliases": ["SparkPost", "SparkPost Mail"],
+        "domains": ["sparkpost.com"],
+        "host": "smtp.sparkpostmail.com",
+        "port": 587,
+        "secure": false
+    },
+
+    "Tipimail": {
+        "host": "smtp.tipimail.com",
+        "port": 587
+    },
+
+    "Yahoo": {
+        "domains": ["yahoo.com"],
+        "host": "smtp.mail.yahoo.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "Yandex": {
+        "domains": ["yandex.ru"],
+        "host": "smtp.yandex.ru",
+        "port": 465,
+        "secure": true
+    },
+
+    "Zoho": {
+        "host": "smtp.zoho.com",
+        "port": 465,
+        "secure": true,
+        "authMethod": "LOGIN"
+    },
+
+    "126": {
+        "host": "smtp.126.com",
+        "port": 465,
+        "secure": true
+    },
+
+    "163": {
+        "host": "smtp.163.com",
+        "port": 465,
+        "secure": true
+    }
+}
diff --git a/backend/node_modules/nodemailer/lib/xoauth2/index.js b/backend/node_modules/nodemailer/lib/xoauth2/index.js
new file mode 100644
index 0000000..ed461df
--- /dev/null
+++ b/backend/node_modules/nodemailer/lib/xoauth2/index.js
@@ -0,0 +1,376 @@
+'use strict';
+
+const Stream = require('stream').Stream;
+const nmfetch = require('../fetch');
+const crypto = require('crypto');
+const shared = require('../shared');
+
+/**
+ * XOAUTH2 access_token generator for Gmail.
+ * Create client ID for web applications in Google API console to use it.
+ * See Offline Access for receiving the needed refreshToken for an user
+ * https://developers.google.com/accounts/docs/OAuth2WebServer#offline
+ *
+ * Usage for generating access tokens with a custom method using provisionCallback:
+ * provisionCallback(user, renew, callback)
+ *   * user is the username to get the token for
+ *   * renew is a boolean that if true indicates that existing token failed and needs to be renewed
+ *   * callback is the callback to run with (error, accessToken [, expires])
+ *     * accessToken is a string
+ *     * expires is an optional expire time in milliseconds
+ * If provisionCallback is used, then Nodemailer does not try to attempt generating the token by itself
+ *
+ * @constructor
+ * @param {Object} options Client information for token generation
+ * @param {String} options.user User e-mail address
+ * @param {String} options.clientId Client ID value
+ * @param {String} options.clientSecret Client secret value
+ * @param {String} options.refreshToken Refresh token for an user
+ * @param {String} options.accessUrl Endpoint for token generation, defaults to 'https://accounts.google.com/o/oauth2/token'
+ * @param {String} options.accessToken An existing valid accessToken
+ * @param {String} options.privateKey Private key for JSW
+ * @param {Number} options.expires Optional Access Token expire time in ms
+ * @param {Number} options.timeout Optional TTL for Access Token in seconds
+ * @param {Function} options.provisionCallback Function to run when a new access token is required
+ */
+class XOAuth2 extends Stream {
+    constructor(options, logger) {
+        super();
+
+        this.options = options || {};
+
+        if (options && options.serviceClient) {
+            if (!options.privateKey || !options.user) {
+                setImmediate(() => this.emit('error', new Error('Options "privateKey" and "user" are required for service account!')));
+                return;
+            }
+
+            let serviceRequestTimeout = Math.min(Math.max(Number(this.options.serviceRequestTimeout) || 0, 0), 3600);
+            this.options.serviceRequestTimeout = serviceRequestTimeout || 5 * 60;
+        }
+
+        this.logger = shared.getLogger(
+            {
+                logger
+            },
+            {
+                component: this.options.component || 'OAuth2'
+            }
+        );
+
+        this.provisionCallback = typeof this.options.provisionCallback === 'function' ? this.options.provisionCallback : false;
+
+        this.options.accessUrl = this.options.accessUrl || 'https://accounts.google.com/o/oauth2/token';
+        this.options.customHeaders = this.options.customHeaders || {};
+        this.options.customParams = this.options.customParams || {};
+
+        this.accessToken = this.options.accessToken || false;
+
+        if (this.options.expires && Number(this.options.expires)) {
+            this.expires = this.options.expires;
+        } else {
+            let timeout = Math.max(Number(this.options.timeout) || 0, 0);
+            this.expires = (timeout && Date.now() + timeout * 1000) || 0;
+        }
+    }
+
+    /**
+     * Returns or generates (if previous has expired) a XOAuth2 token
+     *
+     * @param {Boolean} renew If false then use cached access token (if available)
+     * @param {Function} callback Callback function with error object and token string
+     */
+    getToken(renew, callback) {
+        if (!renew && this.accessToken && (!this.expires || this.expires > Date.now())) {
+            return callback(null, this.accessToken);
+        }
+
+        let generateCallback = (...args) => {
+            if (args[0]) {
+                this.logger.error(
+                    {
+                        err: args[0],
+                        tnx: 'OAUTH2',
+                        user: this.options.user,
+                        action: 'renew'
+                    },
+                    'Failed generating new Access Token for %s',
+                    this.options.user
+                );
+            } else {
+                this.logger.info(
+                    {
+                        tnx: 'OAUTH2',
+                        user: this.options.user,
+                        action: 'renew'
+                    },
+                    'Generated new Access Token for %s',
+                    this.options.user
+                );
+            }
+            callback(...args);
+        };
+
+        if (this.provisionCallback) {
+            this.provisionCallback(this.options.user, !!renew, (err, accessToken, expires) => {
+                if (!err && accessToken) {
+                    this.accessToken = accessToken;
+                    this.expires = expires || 0;
+                }
+                generateCallback(err, accessToken);
+            });
+        } else {
+            this.generateToken(generateCallback);
+        }
+    }
+
+    /**
+     * Updates token values
+     *
+     * @param {String} accessToken New access token
+     * @param {Number} timeout Access token lifetime in seconds
+     *
+     * Emits 'token': { user: User email-address, accessToken: the new accessToken, timeout: TTL in seconds}
+     */
+    updateToken(accessToken, timeout) {
+        this.accessToken = accessToken;
+        timeout = Math.max(Number(timeout) || 0, 0);
+        this.expires = (timeout && Date.now() + timeout * 1000) || 0;
+
+        this.emit('token', {
+            user: this.options.user,
+            accessToken: accessToken || '',
+            expires: this.expires
+        });
+    }
+
+    /**
+     * Generates a new XOAuth2 token with the credentials provided at initialization
+     *
+     * @param {Function} callback Callback function with error object and token string
+     */
+    generateToken(callback) {
+        let urlOptions;
+        let loggedUrlOptions;
+        if (this.options.serviceClient) {
+            // service account - https://developers.google.com/identity/protocols/OAuth2ServiceAccount
+            let iat = Math.floor(Date.now() / 1000); // unix time
+            let tokenData = {
+                iss: this.options.serviceClient,
+                scope: this.options.scope || 'https://mail.google.com/',
+                sub: this.options.user,
+                aud: this.options.accessUrl,
+                iat,
+                exp: iat + this.options.serviceRequestTimeout
+            };
+            let token;
+            try {
+                token = this.jwtSignRS256(tokenData);
+            } catch (err) {
+                return callback(new Error('Can\x27t generate token. Check your auth options'));
+            }
+
+            urlOptions = {
+                grant_type: 'urn:ietf:params:oauth:grant-type:jwt-bearer',
+                assertion: token
+            };
+
+            loggedUrlOptions = {
+                grant_type: 'urn:ietf:params:oauth:grant-type:jwt-bearer',
+                assertion: tokenData
+            };
+        } else {
+            if (!this.options.refreshToken) {
+                return callback(new Error('Can\x27t create new access token for user'));
+            }
+
+            // web app - https://developers.google.com/identity/protocols/OAuth2WebServer
+            urlOptions = {
+                client_id: this.options.clientId || '',
+                client_secret: this.options.clientSecret || '',
+                refresh_token: this.options.refreshToken,
+                grant_type: 'refresh_token'
+            };
+
+            loggedUrlOptions = {
+                client_id: this.options.clientId || '',
+                client_secret: (this.options.clientSecret || '').substr(0, 6) + '...',
+                refresh_token: (this.options.refreshToken || '').substr(0, 6) + '...',
+                grant_type: 'refresh_token'
+            };
+        }
+
+        Object.keys(this.options.customParams).forEach(key => {
+            urlOptions[key] = this.options.customParams[key];
+            loggedUrlOptions[key] = this.options.customParams[key];
+        });
+
+        this.logger.debug(
+            {
+                tnx: 'OAUTH2',
+                user: this.options.user,
+                action: 'generate'
+            },
+            'Requesting token using: %s',
+            JSON.stringify(loggedUrlOptions)
+        );
+
+        this.postRequest(this.options.accessUrl, urlOptions, this.options, (error, body) => {
+            let data;
+
+            if (error) {
+                return callback(error);
+            }
+
+            try {
+                data = JSON.parse(body.toString());
+            } catch (E) {
+                return callback(E);
+            }
+
+            if (!data || typeof data !== 'object') {
+                this.logger.debug(
+                    {
+                        tnx: 'OAUTH2',
+                        user: this.options.user,
+                        action: 'post'
+                    },
+                    'Response: %s',
+                    (body || '').toString()
+                );
+                return callback(new Error('Invalid authentication response'));
+            }
+
+            let logData = {};
+            Object.keys(data).forEach(key => {
+                if (key !== 'access_token') {
+                    logData[key] = data[key];
+                } else {
+                    logData[key] = (data[key] || '').toString().substr(0, 6) + '...';
+                }
+            });
+
+            this.logger.debug(
+                {
+                    tnx: 'OAUTH2',
+                    user: this.options.user,
+                    action: 'post'
+                },
+                'Response: %s',
+                JSON.stringify(logData)
+            );
+
+            if (data.error) {
+                // Error Response : https://tools.ietf.org/html/rfc6749#section-5.2
+                let errorMessage = data.error;
+                if (data.error_description) {
+                    errorMessage += ': ' + data.error_description;
+                }
+                if (data.error_uri) {
+                    errorMessage += ' (' + data.error_uri + ')';
+                }
+                return callback(new Error(errorMessage));
+            }
+
+            if (data.access_token) {
+                this.updateToken(data.access_token, data.expires_in);
+                return callback(null, this.accessToken);
+            }
+
+            return callback(new Error('No access token'));
+        });
+    }
+
+    /**
+     * Converts an access_token and user id into a base64 encoded XOAuth2 token
+     *
+     * @param {String} [accessToken] Access token string
+     * @return {String} Base64 encoded token for IMAP or SMTP login
+     */
+    buildXOAuth2Token(accessToken) {
+        let authData = ['user=' + (this.options.user || ''), 'auth=Bearer ' + (accessToken || this.accessToken), '', ''];
+        return Buffer.from(authData.join('\x01'), 'utf-8').toString('base64');
+    }
+
+    /**
+     * Custom POST request handler.
+     * This is only needed to keep paths short in Windows – usually this module
+     * is a dependency of a dependency and if it tries to require something
+     * like the request module the paths get way too long to handle for Windows.
+     * As we do only a simple POST request we do not actually require complicated
+     * logic support (no redirects, no nothing) anyway.
+     *
+     * @param {String} url Url to POST to
+     * @param {String|Buffer} payload Payload to POST
+     * @param {Function} callback Callback function with (err, buff)
+     */
+    postRequest(url, payload, params, callback) {
+        let returned = false;
+
+        let chunks = [];
+        let chunklen = 0;
+
+        let req = nmfetch(url, {
+            method: 'post',
+            headers: params.customHeaders,
+            body: payload,
+            allowErrorResponse: true
+        });
+
+        req.on('readable', () => {
+            let chunk;
+            while ((chunk = req.read()) !== null) {
+                chunks.push(chunk);
+                chunklen += chunk.length;
+            }
+        });
+
+        req.once('error', err => {
+            if (returned) {
+                return;
+            }
+            returned = true;
+            return callback(err);
+        });
+
+        req.once('end', () => {
+            if (returned) {
+                return;
+            }
+            returned = true;
+            return callback(null, Buffer.concat(chunks, chunklen));
+        });
+    }
+
+    /**
+     * Encodes a buffer or a string into Base64url format
+     *
+     * @param {Buffer|String} data The data to convert
+     * @return {String} The encoded string
+     */
+    toBase64URL(data) {
+        if (typeof data === 'string') {
+            data = Buffer.from(data);
+        }
+
+        return data
+            .toString('base64')
+            .replace(/[=]+/g, '') // remove '='s
+            .replace(/\+/g, '-') // '+' → '-'
+            .replace(/\//g, '_'); // '/' → '_'
+    }
+
+    /**
+     * Creates a JSON Web Token signed with RS256 (SHA256 + RSA)
+     *
+     * @param {Object} payload The payload to include in the generated token
+     * @return {String} The generated and signed token
+     */
+    jwtSignRS256(payload) {
+        payload = ['{"alg":"RS256","typ":"JWT"}', JSON.stringify(payload)].map(val => this.toBase64URL(val)).join('.');
+        let signature = crypto.createSign('RSA-SHA256').update(payload).sign(this.options.privateKey);
+        return payload + '.' + this.toBase64URL(signature);
+    }
+}
+
+module.exports = XOAuth2;
diff --git a/backend/node_modules/nodemailer/package.json b/backend/node_modules/nodemailer/package.json
new file mode 100644
index 0000000..c53f899
--- /dev/null
+++ b/backend/node_modules/nodemailer/package.json
@@ -0,0 +1,43 @@
+{
+    "name": "nodemailer",
+    "version": "6.10.0",
+    "description": "Easy as cake e-mail sending from your Node.js applications",
+    "main": "lib/nodemailer.js",
+    "scripts": {
+        "test": "node --test --test-concurrency=1 test/**/*.test.js test/**/*-test.js",
+        "test:coverage": "c8 node --test --test-concurrency=1 test/**/*.test.js test/**/*-test.js",
+        "lint": "eslint .",
+        "update": "rm -rf node_modules/ package-lock.json && ncu -u && npm install"
+    },
+    "repository": {
+        "type": "git",
+        "url": "https://github.com/nodemailer/nodemailer.git"
+    },
+    "keywords": [
+        "Nodemailer"
+    ],
+    "author": "Andris Reinman",
+    "license": "MIT-0",
+    "bugs": {
+        "url": "https://github.com/nodemailer/nodemailer/issues"
+    },
+    "homepage": "https://nodemailer.com/",
+    "devDependencies": {
+        "@aws-sdk/client-ses": "3.731.1",
+        "bunyan": "1.8.15",
+        "c8": "10.1.3",
+        "eslint": "8.57.0",
+        "eslint-config-nodemailer": "1.2.0",
+        "eslint-config-prettier": "9.1.0",
+        "libbase64": "1.3.0",
+        "libmime": "5.3.6",
+        "libqp": "2.1.1",
+        "nodemailer-ntlm-auth": "1.0.4",
+        "proxy": "1.0.2",
+        "proxy-test-server": "1.0.0",
+        "smtp-server": "3.13.6"
+    },
+    "engines": {
+        "node": ">=6.0.0"
+    }
+}
diff --git a/backend/node_modules/object-assign/index.js b/backend/node_modules/object-assign/index.js
new file mode 100644
index 0000000..0930cf8
--- /dev/null
+++ b/backend/node_modules/object-assign/index.js
@@ -0,0 +1,90 @@
+/*
+object-assign
+(c) Sindre Sorhus
+@license MIT
+*/
+
+'use strict';
+/* eslint-disable no-unused-vars */
+var getOwnPropertySymbols = Object.getOwnPropertySymbols;
+var hasOwnProperty = Object.prototype.hasOwnProperty;
+var propIsEnumerable = Object.prototype.propertyIsEnumerable;
+
+function toObject(val) {
+	if (val === null || val === undefined) {
+		throw new TypeError('Object.assign cannot be called with null or undefined');
+	}
+
+	return Object(val);
+}
+
+function shouldUseNative() {
+	try {
+		if (!Object.assign) {
+			return false;
+		}
+
+		// Detect buggy property enumeration order in older V8 versions.
+
+		// https://bugs.chromium.org/p/v8/issues/detail?id=4118
+		var test1 = new String('abc');  // eslint-disable-line no-new-wrappers
+		test1[5] = 'de';
+		if (Object.getOwnPropertyNames(test1)[0] === '5') {
+			return false;
+		}
+
+		// https://bugs.chromium.org/p/v8/issues/detail?id=3056
+		var test2 = {};
+		for (var i = 0; i < 10; i++) {
+			test2['_' + String.fromCharCode(i)] = i;
+		}
+		var order2 = Object.getOwnPropertyNames(test2).map(function (n) {
+			return test2[n];
+		});
+		if (order2.join('') !== '0123456789') {
+			return false;
+		}
+
+		// https://bugs.chromium.org/p/v8/issues/detail?id=3056
+		var test3 = {};
+		'abcdefghijklmnopqrst'.split('').forEach(function (letter) {
+			test3[letter] = letter;
+		});
+		if (Object.keys(Object.assign({}, test3)).join('') !==
+				'abcdefghijklmnopqrst') {
+			return false;
+		}
+
+		return true;
+	} catch (err) {
+		// We don't expect any of the above to throw, but better to be safe.
+		return false;
+	}
+}
+
+module.exports = shouldUseNative() ? Object.assign : function (target, source) {
+	var from;
+	var to = toObject(target);
+	var symbols;
+
+	for (var s = 1; s < arguments.length; s++) {
+		from = Object(arguments[s]);
+
+		for (var key in from) {
+			if (hasOwnProperty.call(from, key)) {
+				to[key] = from[key];
+			}
+		}
+
+		if (getOwnPropertySymbols) {
+			symbols = getOwnPropertySymbols(from);
+			for (var i = 0; i < symbols.length; i++) {
+				if (propIsEnumerable.call(from, symbols[i])) {
+					to[symbols[i]] = from[symbols[i]];
+				}
+			}
+		}
+	}
+
+	return to;
+};
diff --git a/backend/node_modules/object-assign/license b/backend/node_modules/object-assign/license
new file mode 100644
index 0000000..654d0bf
--- /dev/null
+++ b/backend/node_modules/object-assign/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/object-assign/package.json b/backend/node_modules/object-assign/package.json
new file mode 100644
index 0000000..503eb1e
--- /dev/null
+++ b/backend/node_modules/object-assign/package.json
@@ -0,0 +1,42 @@
+{
+  "name": "object-assign",
+  "version": "4.1.1",
+  "description": "ES2015 `Object.assign()` ponyfill",
+  "license": "MIT",
+  "repository": "sindresorhus/object-assign",
+  "author": {
+    "name": "Sindre Sorhus",
+    "email": "sindresorhus@gmail.com",
+    "url": "sindresorhus.com"
+  },
+  "engines": {
+    "node": ">=0.10.0"
+  },
+  "scripts": {
+    "test": "xo && ava",
+    "bench": "matcha bench.js"
+  },
+  "files": [
+    "index.js"
+  ],
+  "keywords": [
+    "object",
+    "assign",
+    "extend",
+    "properties",
+    "es2015",
+    "ecmascript",
+    "harmony",
+    "ponyfill",
+    "prollyfill",
+    "polyfill",
+    "shim",
+    "browser"
+  ],
+  "devDependencies": {
+    "ava": "^0.16.0",
+    "lodash": "^4.16.4",
+    "matcha": "^0.7.0",
+    "xo": "^0.16.0"
+  }
+}
diff --git a/backend/node_modules/object-assign/readme.md b/backend/node_modules/object-assign/readme.md
new file mode 100644
index 0000000..1be09d3
--- /dev/null
+++ b/backend/node_modules/object-assign/readme.md
@@ -0,0 +1,61 @@
+# object-assign [![Build Status](https://travis-ci.org/sindresorhus/object-assign.svg?branch=master)](https://travis-ci.org/sindresorhus/object-assign)
+
+> ES2015 [`Object.assign()`](http://www.2ality.com/2014/01/object-assign.html) [ponyfill](https://ponyfill.com)
+
+
+## Use the built-in
+
+Node.js 4 and up, as well as every evergreen browser (Chrome, Edge, Firefox, Opera, Safari),
+support `Object.assign()` :tada:. If you target only those environments, then by all
+means, use `Object.assign()` instead of this package.
+
+
+## Install
+
+```
+$ npm install --save object-assign
+```
+
+
+## Usage
+
+```js
+const objectAssign = require('object-assign');
+
+objectAssign({foo: 0}, {bar: 1});
+//=> {foo: 0, bar: 1}
+
+// multiple sources
+objectAssign({foo: 0}, {bar: 1}, {baz: 2});
+//=> {foo: 0, bar: 1, baz: 2}
+
+// overwrites equal keys
+objectAssign({foo: 0}, {foo: 1}, {foo: 2});
+//=> {foo: 2}
+
+// ignores null and undefined sources
+objectAssign({foo: 0}, null, {bar: 1}, undefined);
+//=> {foo: 0, bar: 1}
+```
+
+
+## API
+
+### objectAssign(target, [source, ...])
+
+Assigns enumerable own properties of `source` objects to the `target` object and returns the `target` object. Additional `source` objects will overwrite previous ones.
+
+
+## Resources
+
+- [ES2015 spec - Object.assign](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.assign)
+
+
+## Related
+
+- [deep-assign](https://github.com/sindresorhus/deep-assign) - Recursive `Object.assign()`
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)
diff --git a/backend/node_modules/object-inspect/.eslintrc b/backend/node_modules/object-inspect/.eslintrc
new file mode 100644
index 0000000..21f9039
--- /dev/null
+++ b/backend/node_modules/object-inspect/.eslintrc
@@ -0,0 +1,53 @@
+{
+    "root": true,
+    "extends": "@ljharb",
+    "rules": {
+        "complexity": 0,
+        "func-style": [2, "declaration"],
+        "indent": [2, 4],
+        "max-lines": 1,
+        "max-lines-per-function": 1,
+        "max-params": [2, 4],
+        "max-statements": 0,
+        "max-statements-per-line": [2, { "max": 2 }],
+        "no-magic-numbers": 0,
+        "no-param-reassign": 1,
+        "strict": 0, // TODO
+    },
+    "overrides": [
+        {
+            "files": ["test/**", "test-*", "example/**"],
+            "extends": "@ljharb/eslint-config/tests",
+            "rules": {
+              "id-length": 0,
+            },
+        },
+        {
+            "files": ["example/**"],
+            "rules": {
+                "no-console": 0,
+            },
+        },
+        {
+            "files": ["test/browser/**"],
+            "env": {
+                "browser": true,
+            },
+        },
+        {
+            "files": ["test/bigint*"],
+            "rules": {
+                "new-cap": [2, { "capIsNewExceptions": ["BigInt"] }],
+            },
+        },
+        {
+            "files": "index.js",
+            "globals": {
+                "HTMLElement": false,
+            },
+            "rules": {
+                "no-use-before-define": 1,
+            },
+        },
+    ],
+}
diff --git a/backend/node_modules/object-inspect/.github/FUNDING.yml b/backend/node_modules/object-inspect/.github/FUNDING.yml
new file mode 100644
index 0000000..730276b
--- /dev/null
+++ b/backend/node_modules/object-inspect/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/object-inspect
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/object-inspect/.nycrc b/backend/node_modules/object-inspect/.nycrc
new file mode 100644
index 0000000..58a5db7
--- /dev/null
+++ b/backend/node_modules/object-inspect/.nycrc
@@ -0,0 +1,13 @@
+{
+  "all": true,
+  "check-coverage": false,
+  "instrumentation": false,
+  "sourceMap": false,
+  "reporter": ["text-summary", "text", "html", "json"],
+  "exclude": [
+    "coverage",
+    "example",
+    "test",
+    "test-core-js.js"
+  ]
+}
diff --git a/backend/node_modules/object-inspect/CHANGELOG.md b/backend/node_modules/object-inspect/CHANGELOG.md
new file mode 100644
index 0000000..bdf9002
--- /dev/null
+++ b/backend/node_modules/object-inspect/CHANGELOG.md
@@ -0,0 +1,424 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.13.4](https://github.com/inspect-js/object-inspect/compare/v1.13.3...v1.13.4) - 2025-02-04
+
+### Commits
+
+- [Fix] avoid being fooled by a `Symbol.toStringTag` [`fa5870d`](https://github.com/inspect-js/object-inspect/commit/fa5870da468a525d2f20193700f70752f506cbf7)
+- [Tests] fix tests in node v6.0 - v6.4 [`2abfe1b`](https://github.com/inspect-js/object-inspect/commit/2abfe1bc3c69f9293c07c5cd65a9d7d87a628b84)
+- [Dev Deps] update `es-value-fixtures`, `for-each`, `has-symbols` [`3edfb01`](https://github.com/inspect-js/object-inspect/commit/3edfb01cc8cce220fba0dfdfe2dc8bc955758cdd)
+
+## [v1.13.3](https://github.com/inspect-js/object-inspect/compare/v1.13.2...v1.13.3) - 2024-11-09
+
+### Commits
+
+- [actions] split out node 10-20, and 20+ [`44395a8`](https://github.com/inspect-js/object-inspect/commit/44395a8fc1deda6718a5e125e86b9ffcaa1c7580)
+- [Fix] `quoteStyle`: properly escape only the containing quotes [`5137f8f`](https://github.com/inspect-js/object-inspect/commit/5137f8f7bea69a7fc671bb683fd35f244f38fc52)
+- [Refactor] clean up `quoteStyle` code [`450680c`](https://github.com/inspect-js/object-inspect/commit/450680cd50de4e689ee3b8e1d6db3a1bcf3fc18c)
+- [Tests] add `quoteStyle` escaping tests [`e997c59`](https://github.com/inspect-js/object-inspect/commit/e997c595aeaea84fd98ca35d7e1c3b5ab3ae26e0)
+- [Dev Deps] update `auto-changelog`, `es-value-fixtures`, `tape` [`d5a469c`](https://github.com/inspect-js/object-inspect/commit/d5a469c99ec07ccaeafc36ac4b36a93285086d48)
+- [Tests] replace `aud` with `npm audit` [`fb7815f`](https://github.com/inspect-js/object-inspect/commit/fb7815f9b72cae277a04f65bbb0543f85b88be62)
+- [Dev Deps] update `mock-property` [`11c817b`](https://github.com/inspect-js/object-inspect/commit/11c817bf10392aa017755962ba6bc89d731359ee)
+
+## [v1.13.2](https://github.com/inspect-js/object-inspect/compare/v1.13.1...v1.13.2) - 2024-06-21
+
+### Commits
+
+- [readme] update badges [`8a51e6b`](https://github.com/inspect-js/object-inspect/commit/8a51e6bedaf389ec40cc4659e9df53e8543d176e)
+- [Dev Deps] update `@ljharb/eslint-config`, `tape` [`ef05f58`](https://github.com/inspect-js/object-inspect/commit/ef05f58c9761a41416ab907299bf0fa79517014b)
+- [Dev Deps] update `error-cause`, `has-tostringtag`, `tape` [`c0c6c26`](https://github.com/inspect-js/object-inspect/commit/c0c6c26c44cee6671f7c5d43d2b91d27c5c00d90)
+- [Fix] Don't throw when `global` is not defined [`d4d0965`](https://github.com/inspect-js/object-inspect/commit/d4d096570f7dbd0e03266a96de11d05eb7b63e0f)
+- [meta] add missing `engines.node` [`17a352a`](https://github.com/inspect-js/object-inspect/commit/17a352af6fe1ba6b70a19081674231eb1a50c940)
+- [Dev Deps] update `globalthis` [`9c08884`](https://github.com/inspect-js/object-inspect/commit/9c08884aa662a149e2f11403f413927736b97da7)
+- [Dev Deps] update `error-cause` [`6af352d`](https://github.com/inspect-js/object-inspect/commit/6af352d7c3929a4cc4c55768c27bf547a5e900f4)
+- [Dev Deps] update `npmignore` [`94e617d`](https://github.com/inspect-js/object-inspect/commit/94e617d38831722562fa73dff4c895746861d267)
+- [Dev Deps] update `mock-property` [`2ac24d7`](https://github.com/inspect-js/object-inspect/commit/2ac24d7e58cd388ad093c33249e413e05bbfd6c3)
+- [Dev Deps] update `tape` [`46125e5`](https://github.com/inspect-js/object-inspect/commit/46125e58f1d1dcfb170ed3d1ea69da550ea8d77b)
+
+## [v1.13.1](https://github.com/inspect-js/object-inspect/compare/v1.13.0...v1.13.1) - 2023-10-19
+
+### Commits
+
+- [Fix] in IE 8, global can !== window despite them being prototypes of each other [`30d0859`](https://github.com/inspect-js/object-inspect/commit/30d0859dc4606cf75c2410edcd5d5c6355f8d372)
+
+## [v1.13.0](https://github.com/inspect-js/object-inspect/compare/v1.12.3...v1.13.0) - 2023-10-14
+
+### Commits
+
+- [New] add special handling for the global object [`431bab2`](https://github.com/inspect-js/object-inspect/commit/431bab21a490ee51d35395966a504501e8c685da)
+- [Dev Deps] update `@ljharb/eslint-config`, `aud`, `tape` [`fd4f619`](https://github.com/inspect-js/object-inspect/commit/fd4f6193562b4b0e95dcf5c0201b4e8cbbc4f58d)
+- [Dev Deps] update `mock-property`, `tape` [`b453f6c`](https://github.com/inspect-js/object-inspect/commit/b453f6ceeebf8a1b738a1029754092e0367a4134)
+- [Dev Deps] update `error-cause` [`e8ffc57`](https://github.com/inspect-js/object-inspect/commit/e8ffc577d73b92bb6a4b00c44f14e3319e374888)
+- [Dev Deps] update `tape` [`054b8b9`](https://github.com/inspect-js/object-inspect/commit/054b8b9b98633284cf989e582450ebfbbe53503c)
+- [Dev Deps] temporarily remove `aud` due to breaking change in transitive deps [`2476845`](https://github.com/inspect-js/object-inspect/commit/2476845e0678dd290c541c81cd3dec8420782c52)
+- [Dev Deps] pin `glob`, since v10.3.8+ requires a broken `jackspeak` [`383fa5e`](https://github.com/inspect-js/object-inspect/commit/383fa5eebc0afd705cc778a4b49d8e26452e49a8)
+- [Dev Deps] pin `jackspeak` since 2.1.2+ depends on npm aliases, which kill the install process in npm &lt; 6 [`68c244c`](https://github.com/inspect-js/object-inspect/commit/68c244c5174cdd877e5dcb8ee90aa3f44b2f25be)
+
+## [v1.12.3](https://github.com/inspect-js/object-inspect/compare/v1.12.2...v1.12.3) - 2023-01-12
+
+### Commits
+
+- [Fix] in eg FF 24, collections lack forEach [`75fc226`](https://github.com/inspect-js/object-inspect/commit/75fc22673c82d45f28322b1946bb0eb41b672b7f)
+- [actions] update rebase action to use reusable workflow [`250a277`](https://github.com/inspect-js/object-inspect/commit/250a277a095e9dacc029ab8454dcfc15de549dcd)
+- [Dev Deps] update `aud`, `es-value-fixtures`, `tape` [`66a19b3`](https://github.com/inspect-js/object-inspect/commit/66a19b3209ccc3c5ef4b34c3cb0160e65d1ce9d5)
+- [Dev Deps] update `@ljharb/eslint-config`, `aud`, `error-cause` [`c43d332`](https://github.com/inspect-js/object-inspect/commit/c43d3324b48384a16fd3dc444e5fc589d785bef3)
+- [Tests] add `@pkgjs/support` to `postlint` [`e2618d2`](https://github.com/inspect-js/object-inspect/commit/e2618d22a7a3fa361b6629b53c1752fddc9c4d80)
+
+## [v1.12.2](https://github.com/inspect-js/object-inspect/compare/v1.12.1...v1.12.2) - 2022-05-26
+
+### Commits
+
+- [Fix] use `util.inspect` for a custom inspection symbol method [`e243bf2`](https://github.com/inspect-js/object-inspect/commit/e243bf2eda6c4403ac6f1146fddb14d12e9646c1)
+- [meta] add support info [`ca20ba3`](https://github.com/inspect-js/object-inspect/commit/ca20ba35713c17068ca912a86c542f5e8acb656c)
+- [Fix] ignore `cause` in node v16.9 and v16.10 where it has a bug [`86aa553`](https://github.com/inspect-js/object-inspect/commit/86aa553a4a455562c2c56f1540f0bf857b9d314b)
+
+## [v1.12.1](https://github.com/inspect-js/object-inspect/compare/v1.12.0...v1.12.1) - 2022-05-21
+
+### Commits
+
+- [Tests] use `mock-property` [`4ec8893`](https://github.com/inspect-js/object-inspect/commit/4ec8893ea9bfd28065ca3638cf6762424bf44352)
+- [meta] use `npmignore` to autogenerate an npmignore file [`07f868c`](https://github.com/inspect-js/object-inspect/commit/07f868c10bd25a9d18686528339bb749c211fc9a)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog`, `tape` [`b05244b`](https://github.com/inspect-js/object-inspect/commit/b05244b4f331e00c43b3151bc498041be77ccc91)
+- [Dev Deps] update `@ljharb/eslint-config`, `error-cause`, `es-value-fixtures`, `functions-have-names`, `tape` [`d037398`](https://github.com/inspect-js/object-inspect/commit/d037398dcc5d531532e4c19c4a711ed677f579c1)
+- [Fix] properly handle callable regexes in older engines [`848fe48`](https://github.com/inspect-js/object-inspect/commit/848fe48bd6dd0064ba781ee6f3c5e54a94144c37)
+
+## [v1.12.0](https://github.com/inspect-js/object-inspect/compare/v1.11.1...v1.12.0) - 2021-12-18
+
+### Commits
+
+- [New] add `numericSeparator` boolean option [`2d2d537`](https://github.com/inspect-js/object-inspect/commit/2d2d537f5359a4300ce1c10241369f8024f89e11)
+- [Robustness] cache more prototype methods [`191533d`](https://github.com/inspect-js/object-inspect/commit/191533da8aec98a05eadd73a5a6e979c9c8653e8)
+- [New] ensure an Error’s `cause` is displayed [`53bc2ce`](https://github.com/inspect-js/object-inspect/commit/53bc2cee4e5a9cc4986f3cafa22c0685f340715e)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config` [`bc164b6`](https://github.com/inspect-js/object-inspect/commit/bc164b6e2e7d36b263970f16f54de63048b84a36)
+- [Robustness] cache `RegExp.prototype.test` [`a314ab8`](https://github.com/inspect-js/object-inspect/commit/a314ab8271b905cbabc594c82914d2485a8daf12)
+- [meta] fix auto-changelog settings [`5ed0983`](https://github.com/inspect-js/object-inspect/commit/5ed0983be72f73e32e2559997517a95525c7e20d)
+
+## [v1.11.1](https://github.com/inspect-js/object-inspect/compare/v1.11.0...v1.11.1) - 2021-12-05
+
+### Commits
+
+- [meta] add `auto-changelog` [`7dbdd22`](https://github.com/inspect-js/object-inspect/commit/7dbdd228401d6025d8b7391476d88aee9ea9bbdf)
+- [actions] reuse common workflows [`c8823bc`](https://github.com/inspect-js/object-inspect/commit/c8823bc0a8790729680709d45fb6e652432e91aa)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `safe-publish-latest`, `tape` [`7532b12`](https://github.com/inspect-js/object-inspect/commit/7532b120598307497b712890f75af8056f6d37a6)
+- [Refactor] use `has-tostringtag` to behave correctly in the presence of symbol shams [`94abb5d`](https://github.com/inspect-js/object-inspect/commit/94abb5d4e745bf33253942dea86b3e538d2ff6c6)
+- [actions] update codecov uploader [`5ed5102`](https://github.com/inspect-js/object-inspect/commit/5ed51025267a00e53b1341357315490ac4eb0874)
+- [Dev Deps] update `eslint`, `tape` [`37b2ad2`](https://github.com/inspect-js/object-inspect/commit/37b2ad26c08d94bfd01d5d07069a0b28ef4e2ad7)
+- [meta] add `sideEffects` flag [`d341f90`](https://github.com/inspect-js/object-inspect/commit/d341f905ef8bffa6a694cda6ddc5ba343532cd4f)
+
+## [v1.11.0](https://github.com/inspect-js/object-inspect/compare/v1.10.3...v1.11.0) - 2021-07-12
+
+### Commits
+
+- [New] `customInspect`: add `symbol` option, to mimic modern util.inspect behavior [`e973a6e`](https://github.com/inspect-js/object-inspect/commit/e973a6e21f8140c5837cf25e9d89bdde88dc3120)
+- [Dev Deps] update `eslint` [`05f1cb3`](https://github.com/inspect-js/object-inspect/commit/05f1cb3cbcfe1f238e8b51cf9bc294305b7ed793)
+
+## [v1.10.3](https://github.com/inspect-js/object-inspect/compare/v1.10.2...v1.10.3) - 2021-05-07
+
+### Commits
+
+- [Fix] handle core-js Symbol shams [`4acfc2c`](https://github.com/inspect-js/object-inspect/commit/4acfc2c4b503498759120eb517abad6d51c9c5d6)
+- [readme] update badges [`95c323a`](https://github.com/inspect-js/object-inspect/commit/95c323ad909d6cbabb95dd6015c190ba6db9c1f2)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud` [`cb38f48`](https://github.com/inspect-js/object-inspect/commit/cb38f485de6ec7a95109b5a9bbd0a1deba2f6611)
+
+## [v1.10.2](https://github.com/inspect-js/object-inspect/compare/v1.10.1...v1.10.2) - 2021-04-17
+
+### Commits
+
+- [Fix] use a robust check for a boxed Symbol [`87f12d6`](https://github.com/inspect-js/object-inspect/commit/87f12d6e69ce530be04659c81a4cd502943acac5)
+
+## [v1.10.1](https://github.com/inspect-js/object-inspect/compare/v1.10.0...v1.10.1) - 2021-04-17
+
+### Commits
+
+- [Fix] use a robust check for a boxed bigint [`d5ca829`](https://github.com/inspect-js/object-inspect/commit/d5ca8298b6d2e5c7b9334a5b21b96ed95d225c91)
+
+## [v1.10.0](https://github.com/inspect-js/object-inspect/compare/v1.9.0...v1.10.0) - 2021-04-17
+
+### Commits
+
+- [Tests] increase coverage [`d8abb8a`](https://github.com/inspect-js/object-inspect/commit/d8abb8a62c2f084919df994a433b346e0d87a227)
+- [actions] use `node/install` instead of `node/run`; use `codecov` action [`4bfec2e`](https://github.com/inspect-js/object-inspect/commit/4bfec2e30aaef6ddef6cbb1448306f9f8b9520b7)
+- [New] respect `Symbol.toStringTag` on objects [`799b58f`](https://github.com/inspect-js/object-inspect/commit/799b58f536a45e4484633a8e9daeb0330835f175)
+- [Fix] do not allow Symbol.toStringTag to masquerade as builtins [`d6c5b37`](https://github.com/inspect-js/object-inspect/commit/d6c5b37d7e94427796b82432fb0c8964f033a6ab)
+- [New] add `WeakRef` support [`b6d898e`](https://github.com/inspect-js/object-inspect/commit/b6d898ee21868c780a7ee66b28532b5b34ed7f09)
+- [meta] do not publish github action workflow files [`918cdfc`](https://github.com/inspect-js/object-inspect/commit/918cdfc4b6fe83f559ff6ef04fe66201e3ff5cbd)
+- [meta] create `FUNDING.yml` [`0bb5fc5`](https://github.com/inspect-js/object-inspect/commit/0bb5fc516dbcd2cd728bd89cee0b580acc5ce301)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `tape` [`22c8dc0`](https://github.com/inspect-js/object-inspect/commit/22c8dc0cac113d70f4781e49a950070923a671be)
+- [meta] use `prepublishOnly` script for npm 7+ [`e52ee09`](https://github.com/inspect-js/object-inspect/commit/e52ee09e8050b8dbac94ef57f786675567728223)
+- [Dev Deps] update `eslint` [`7c4e6fd`](https://github.com/inspect-js/object-inspect/commit/7c4e6fdedcd27cc980e13c9ad834d05a96f3d40c)
+
+## [v1.9.0](https://github.com/inspect-js/object-inspect/compare/v1.8.0...v1.9.0) - 2020-11-30
+
+### Commits
+
+- [Tests] migrate tests to Github Actions [`d262251`](https://github.com/inspect-js/object-inspect/commit/d262251e13e16d3490b5473672f6b6d6ff86675d)
+- [New] add enumerable own Symbols to plain object output [`ee60c03`](https://github.com/inspect-js/object-inspect/commit/ee60c033088cff9d33baa71e59a362a541b48284)
+- [Tests] add passing tests [`01ac3e4`](https://github.com/inspect-js/object-inspect/commit/01ac3e4b5a30f97875a63dc9b1416b3bd626afc9)
+- [actions] add "Require Allow Edits" action [`c2d7746`](https://github.com/inspect-js/object-inspect/commit/c2d774680cde4ca4af332d84d4121b26f798ba9e)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `core-js` [`70058de`](https://github.com/inspect-js/object-inspect/commit/70058de1579fc54d1d15ed6c2dbe246637ce70ff)
+- [Fix] hex characters in strings should be uppercased, to match node `assert` [`6ab8faa`](https://github.com/inspect-js/object-inspect/commit/6ab8faaa0abc08fe7a8e2afd8b39c6f1f0e00113)
+- [Tests] run `nyc` on all tests [`4c47372`](https://github.com/inspect-js/object-inspect/commit/4c473727879ddc8e28b599202551ddaaf07b6210)
+- [Tests] node 0.8 has an unpredictable property order; fix `groups` test by removing property [`f192069`](https://github.com/inspect-js/object-inspect/commit/f192069a978a3b60e6f0e0d45ac7df260ab9a778)
+- [New] add enumerable properties to Function inspect result, per node’s `assert` [`fd38e1b`](https://github.com/inspect-js/object-inspect/commit/fd38e1bc3e2a1dc82091ce3e021917462eee64fc)
+- [Tests] fix tests for node &lt; 10, due to regex match `groups` [`2ac6462`](https://github.com/inspect-js/object-inspect/commit/2ac6462cc4f72eaa0b63a8cfee9aabe3008b2330)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config` [`44b59e2`](https://github.com/inspect-js/object-inspect/commit/44b59e2676a7f825ef530dfd19dafb599e3b9456)
+- [Robustness] cache `Symbol.prototype.toString` [`f3c2074`](https://github.com/inspect-js/object-inspect/commit/f3c2074d8f32faf8292587c07c9678ea931703dd)
+- [Dev Deps] update `eslint` [`9411294`](https://github.com/inspect-js/object-inspect/commit/94112944b9245e3302e25453277876402d207e7f)
+- [meta] `require-allow-edits` no longer requires an explicit github token [`36c0220`](https://github.com/inspect-js/object-inspect/commit/36c02205de3c2b0e84d53777c5c9fd54a36c48ab)
+- [actions] update rebase checkout action to v2 [`55a39a6`](https://github.com/inspect-js/object-inspect/commit/55a39a64e944f19c6a7d8efddf3df27700f20d14)
+- [actions] switch Automatic Rebase workflow to `pull_request_target` event [`f59fd3c`](https://github.com/inspect-js/object-inspect/commit/f59fd3cf406c3a7c7ece140904a80bbc6bacfcca)
+- [Dev Deps] update `eslint` [`a492bec`](https://github.com/inspect-js/object-inspect/commit/a492becec644b0155c9c4bc1caf6f9fac11fb2c7)
+
+## [v1.8.0](https://github.com/inspect-js/object-inspect/compare/v1.7.0...v1.8.0) - 2020-06-18
+
+### Fixed
+
+- [New] add `indent` option [`#27`](https://github.com/inspect-js/object-inspect/issues/27)
+
+### Commits
+
+- [Tests] add codecov [`4324cbb`](https://github.com/inspect-js/object-inspect/commit/4324cbb1a2bd7710822a4151ff373570db22453e)
+- [New] add `maxStringLength` option [`b3995cb`](https://github.com/inspect-js/object-inspect/commit/b3995cb71e15b5ee127a3094c43994df9d973502)
+- [New] add `customInspect` option, to disable custom inspect methods [`28b9179`](https://github.com/inspect-js/object-inspect/commit/28b9179ee802bb3b90810100c11637db90c2fb6d)
+- [Tests] add Date and RegExp tests [`3b28eca`](https://github.com/inspect-js/object-inspect/commit/3b28eca57b0367aeadffac604ea09e8bdae7d97b)
+- [actions] add automatic rebasing / merge commit blocking [`0d9c6c0`](https://github.com/inspect-js/object-inspect/commit/0d9c6c044e83475ff0bfffb9d35b149834c83a2e)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `core-js`, `tape`; add `aud` [`7c204f2`](https://github.com/inspect-js/object-inspect/commit/7c204f22b9e41bc97147f4d32d4cb045b17769a6)
+- [readme] fix repo URLs, remove testling [`34ca9a0`](https://github.com/inspect-js/object-inspect/commit/34ca9a0dabfe75bd311f806a326fadad029909a3)
+- [Fix] when truncating a deep array, note it as `[Array]` instead of just `[Object]` [`f74c82d`](https://github.com/inspect-js/object-inspect/commit/f74c82dd0b35386445510deb250f34c41be3ec0e)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `tape` [`1a8a5ea`](https://github.com/inspect-js/object-inspect/commit/1a8a5ea069ea2bee89d77caedad83ffa23d35711)
+- [Fix] do not be fooled by a function’s own `toString` method [`7cb5c65`](https://github.com/inspect-js/object-inspect/commit/7cb5c657a976f94715c19c10556a30f15bb7d5d7)
+- [patch] indicate explicitly that anon functions are anonymous, to match node [`81ebdd4`](https://github.com/inspect-js/object-inspect/commit/81ebdd4215005144074bbdff3f6bafa01407910a)
+- [Dev Deps] loosen the `core-js` dep [`e7472e8`](https://github.com/inspect-js/object-inspect/commit/e7472e8e242117670560bd995830c2a4d12080f5)
+- [Dev Deps] update `tape` [`699827e`](https://github.com/inspect-js/object-inspect/commit/699827e6b37258b5203c33c78c009bf4b0e6a66d)
+- [meta] add `safe-publish-latest` [`c5d2868`](https://github.com/inspect-js/object-inspect/commit/c5d2868d6eb33c472f37a20f89ceef2787046088)
+- [Dev Deps] update `@ljharb/eslint-config` [`9199501`](https://github.com/inspect-js/object-inspect/commit/919950195d486114ccebacbdf9d74d7f382693b0)
+
+## [v1.7.0](https://github.com/inspect-js/object-inspect/compare/v1.6.0...v1.7.0) - 2019-11-10
+
+### Commits
+
+- [Tests] use shared travis-ci configs [`19899ed`](https://github.com/inspect-js/object-inspect/commit/19899edbf31f4f8809acf745ce34ad1ce1bfa63b)
+- [Tests] add linting [`a00f057`](https://github.com/inspect-js/object-inspect/commit/a00f057d917f66ea26dd37769c6b810ec4af97e8)
+- [Tests] lint last file [`2698047`](https://github.com/inspect-js/object-inspect/commit/2698047b58af1e2e88061598ef37a75f228dddf6)
+- [Tests] up to `node` `v12.7`, `v11.15`, `v10.16`, `v8.16`, `v6.17` [`589e87a`](https://github.com/inspect-js/object-inspect/commit/589e87a99cadcff4b600e6a303418e9d922836e8)
+- [New] add support for `WeakMap` and `WeakSet` [`3ddb3e4`](https://github.com/inspect-js/object-inspect/commit/3ddb3e4e0c8287130c61a12e0ed9c104b1549306)
+- [meta] clean up license so github can detect it properly [`27527bb`](https://github.com/inspect-js/object-inspect/commit/27527bb801520c9610c68cc3b55d6f20a2bee56d)
+- [Tests] cover `util.inspect.custom` [`36d47b9`](https://github.com/inspect-js/object-inspect/commit/36d47b9c59056a57ef2f1491602c726359561800)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `core-js`, `tape` [`b614eaa`](https://github.com/inspect-js/object-inspect/commit/b614eaac901da0e5c69151f534671f990a94cace)
+- [Tests] fix coverage thresholds [`7b7b176`](https://github.com/inspect-js/object-inspect/commit/7b7b176e15f8bd6e8b2f261ff5a493c2fe78d9c2)
+- [Tests] bigint tests now can run on unflagged node [`063af31`](https://github.com/inspect-js/object-inspect/commit/063af31ce9cd13c202e3b67c07ba06dc9b7c0f81)
+- [Refactor] add early bailout to `isMap` and `isSet` checks [`fc51047`](https://github.com/inspect-js/object-inspect/commit/fc5104714a3671d37e225813db79470d6335683b)
+- [meta] add `funding` field [`7f9953a`](https://github.com/inspect-js/object-inspect/commit/7f9953a113eec7b064a6393cf9f90ba15f1d131b)
+- [Tests] Fix invalid strict-mode syntax with hexadecimal [`a8b5425`](https://github.com/inspect-js/object-inspect/commit/a8b542503b4af1599a275209a1a99f5fdedb1ead)
+- [Dev Deps] update `@ljharb/eslint-config` [`98df157`](https://github.com/inspect-js/object-inspect/commit/98df1577314d9188a3fc3f17fdcf2fba697ae1bd)
+- add copyright to LICENSE [`bb69fd0`](https://github.com/inspect-js/object-inspect/commit/bb69fd017a062d299e44da1f9b2c7dcd67f621e6)
+- [Tests] use `npx aud` in `posttest` [`4838353`](https://github.com/inspect-js/object-inspect/commit/4838353593974cf7f905b9ef04c03c094f0cdbe2)
+- [Tests] move `0.6` to allowed failures, because it won‘t build on travis [`1bff32a`](https://github.com/inspect-js/object-inspect/commit/1bff32aa52e8aea687f0856b28ba754b3e43ebf7)
+
+## [v1.6.0](https://github.com/inspect-js/object-inspect/compare/v1.5.0...v1.6.0) - 2018-05-02
+
+### Commits
+
+- [New] add support for boxed BigInt primitives [`356c66a`](https://github.com/inspect-js/object-inspect/commit/356c66a410e7aece7162c8319880a5ef647beaa9)
+- [Tests] up to `node` `v10.0`, `v9.11`, `v8.11`, `v6.14`, `v4.9` [`c77b65b`](https://github.com/inspect-js/object-inspect/commit/c77b65bba593811b906b9ec57561c5cba92e2db3)
+- [New] Add support for upcoming `BigInt` [`1ac548e`](https://github.com/inspect-js/object-inspect/commit/1ac548e4b27e26466c28c9a5e63e5d4e0591c31f)
+- [Tests] run bigint tests in CI with --harmony-bigint flag [`d31b738`](https://github.com/inspect-js/object-inspect/commit/d31b73831880254b5c6cf5691cda9a149fbc5f04)
+- [Dev Deps] update `core-js`, `tape` [`ff9eff6`](https://github.com/inspect-js/object-inspect/commit/ff9eff67113341ee1aaf80c1c22d683f43bfbccf)
+- [Docs] fix example to use `safer-buffer` [`48cae12`](https://github.com/inspect-js/object-inspect/commit/48cae12a73ec6cacc955175bc56bbe6aee6a211f)
+
+## [v1.5.0](https://github.com/inspect-js/object-inspect/compare/v1.4.1...v1.5.0) - 2017-12-25
+
+### Commits
+
+- [New] add `quoteStyle` option [`f5a72d2`](https://github.com/inspect-js/object-inspect/commit/f5a72d26edb3959b048f74c056ca7100a6b091e4)
+- [Tests] add more test coverage [`30ebe4e`](https://github.com/inspect-js/object-inspect/commit/30ebe4e1fa943b99ecbb85be7614256d536e2759)
+- [Tests] require 0.6 to pass [`99a008c`](https://github.com/inspect-js/object-inspect/commit/99a008ccace189a60fd7da18bf00e32c9572b980)
+
+## [v1.4.1](https://github.com/inspect-js/object-inspect/compare/v1.4.0...v1.4.1) - 2017-12-19
+
+### Commits
+
+- [Tests] up to `node` `v9.3`, `v8.9`, `v6.12` [`6674476`](https://github.com/inspect-js/object-inspect/commit/6674476cc56acaac1bde96c84fed5ef631911906)
+- [Fix] `inspect(Object(-0))` should be “Object(-0)”, not “Object(0)” [`d0a031f`](https://github.com/inspect-js/object-inspect/commit/d0a031f1cbb3024ee9982bfe364dd18a7e4d1bd3)
+
+## [v1.4.0](https://github.com/inspect-js/object-inspect/compare/v1.3.0...v1.4.0) - 2017-10-24
+
+### Commits
+
+- [Tests] add `npm run coverage` [`3b48fb2`](https://github.com/inspect-js/object-inspect/commit/3b48fb25db037235eeb808f0b2830aad7aa36f70)
+- [Tests] remove commented-out osx builds [`71e24db`](https://github.com/inspect-js/object-inspect/commit/71e24db8ad6ee3b9b381c5300b0475f2ba595a73)
+- [New] add support for `util.inspect.custom`, in node only. [`20cca77`](https://github.com/inspect-js/object-inspect/commit/20cca7762d7e17f15b21a90793dff84acce155df)
+- [Tests] up to `node` `v8.6`; use `nvm install-latest-npm` to ensure new npm doesn’t break old node [`252952d`](https://github.com/inspect-js/object-inspect/commit/252952d230d8065851dd3d4d5fe8398aae068529)
+- [Tests] up to `node` `v8.8` [`4aa868d`](https://github.com/inspect-js/object-inspect/commit/4aa868d3a62914091d489dd6ec6eed194ee67cd3)
+- [Dev Deps] update `core-js`, `tape` [`59483d1`](https://github.com/inspect-js/object-inspect/commit/59483d1df418f852f51fa0db7b24aa6b0209a27a)
+
+## [v1.3.0](https://github.com/inspect-js/object-inspect/compare/v1.2.2...v1.3.0) - 2017-07-31
+
+### Fixed
+
+- [Fix] Map/Set: work around core-js bug &lt; v2.5.0 [`#9`](https://github.com/inspect-js/object-inspect/issues/9)
+
+### Commits
+
+- [New] add support for arrays with additional object keys [`0d19937`](https://github.com/inspect-js/object-inspect/commit/0d199374ee37959e51539616666f420ccb29acb9)
+- [Tests] up to `node` `v8.2`, `v7.10`, `v6.11`; fix new npm breaking on older nodes [`e24784a`](https://github.com/inspect-js/object-inspect/commit/e24784a90c49117787157a12a63897c49cf89bbb)
+- Only apps should have lockfiles [`c6faebc`](https://github.com/inspect-js/object-inspect/commit/c6faebcb2ee486a889a4a1c4d78c0776c7576185)
+- [Dev Deps] update `tape` [`7345a0a`](https://github.com/inspect-js/object-inspect/commit/7345a0aeba7e91b888a079c10004d17696a7f586)
+
+## [v1.2.2](https://github.com/inspect-js/object-inspect/compare/v1.2.1...v1.2.2) - 2017-03-24
+
+### Commits
+
+- [Tests] up to `node` `v7.7`, `v6.10`, `v4.8`; improve test matrix [`a2ddc15`](https://github.com/inspect-js/object-inspect/commit/a2ddc15a1f2c65af18076eea1c0eb9cbceb478a0)
+- [Tests] up to `node` `v7.0`, `v6.9`, `v5.12`, `v4.6`, `io.js` `v3.3`; improve test matrix [`a48949f`](https://github.com/inspect-js/object-inspect/commit/a48949f6b574b2d4d2298109d8e8d0eb3e7a83e7)
+- [Performance] check for primitive types as early as possible. [`3b8092a`](https://github.com/inspect-js/object-inspect/commit/3b8092a2a4deffd0575f94334f00194e2d48dad3)
+- [Refactor] remove unneeded `else`s. [`7255034`](https://github.com/inspect-js/object-inspect/commit/725503402e08de4f96f6bf2d8edef44ac36f26b6)
+- [Refactor] avoid recreating `lowbyte` function every time. [`81edd34`](https://github.com/inspect-js/object-inspect/commit/81edd3475bd15bdd18e84de7472033dcf5004aaa)
+- [Fix] differentiate -0 from 0 [`521d345`](https://github.com/inspect-js/object-inspect/commit/521d3456b009da7bf1c5785c8a9df5a9f8718264)
+- [Refactor] move object key gathering into separate function [`aca6265`](https://github.com/inspect-js/object-inspect/commit/aca626536eaeef697196c6e9db3e90e7e0355b6a)
+- [Refactor] consolidate wrapping logic for boxed primitives into a function. [`4e440cd`](https://github.com/inspect-js/object-inspect/commit/4e440cd9065df04802a2a1dead03f48c353ca301)
+- [Robustness] use `typeof` instead of comparing to literal `undefined` [`5ca6f60`](https://github.com/inspect-js/object-inspect/commit/5ca6f601937506daff8ed2fcf686363b55807b69)
+- [Refactor] consolidate Map/Set notations. [`4e576e5`](https://github.com/inspect-js/object-inspect/commit/4e576e5d7ed2f9ec3fb7f37a0d16732eb10758a9)
+- [Tests] ensure that this function remains anonymous, despite ES6 name inference. [`7540ae5`](https://github.com/inspect-js/object-inspect/commit/7540ae591278756db614fa4def55ca413150e1a3)
+- [Refactor] explicitly coerce Error objects to strings. [`7f4ca84`](https://github.com/inspect-js/object-inspect/commit/7f4ca8424ee8dc2c0ca5a422d94f7fac40327261)
+- [Refactor] split up `var` declarations for debuggability [`6f2c11e`](https://github.com/inspect-js/object-inspect/commit/6f2c11e6a85418586a00292dcec5e97683f89bc3)
+- [Robustness] cache `Object.prototype.toString` [`df44a20`](https://github.com/inspect-js/object-inspect/commit/df44a20adfccf31529d60d1df2079bfc3c836e27)
+- [Dev Deps] update `tape` [`3ec714e`](https://github.com/inspect-js/object-inspect/commit/3ec714eba57bc3f58a6eb4fca1376f49e70d300a)
+- [Dev Deps] update `tape` [`beb72d9`](https://github.com/inspect-js/object-inspect/commit/beb72d969653747d7cde300393c28755375329b0)
+
+## [v1.2.1](https://github.com/inspect-js/object-inspect/compare/v1.2.0...v1.2.1) - 2016-04-09
+
+### Fixed
+
+- [Fix] fix Boolean `false` object inspection. [`#7`](https://github.com/substack/object-inspect/pull/7)
+
+## [v1.2.0](https://github.com/inspect-js/object-inspect/compare/v1.1.0...v1.2.0) - 2016-04-09
+
+### Fixed
+
+- [New] add support for inspecting String/Number/Boolean objects. [`#6`](https://github.com/inspect-js/object-inspect/issues/6)
+
+### Commits
+
+- [Dev Deps] update `tape` [`742caa2`](https://github.com/inspect-js/object-inspect/commit/742caa262cf7af4c815d4821c8bd0129c1446432)
+
+## [v1.1.0](https://github.com/inspect-js/object-inspect/compare/1.0.2...v1.1.0) - 2015-12-14
+
+### Merged
+
+- [New] add ES6 Map/Set support. [`#4`](https://github.com/inspect-js/object-inspect/pull/4)
+
+### Fixed
+
+- [New] add ES6 Map/Set support. [`#3`](https://github.com/inspect-js/object-inspect/issues/3)
+
+### Commits
+
+- Update `travis.yml` to test on bunches of `iojs` and `node` versions. [`4c1fd65`](https://github.com/inspect-js/object-inspect/commit/4c1fd65cc3bd95307e854d114b90478324287fd2)
+- [Dev Deps] update `tape` [`88a907e`](https://github.com/inspect-js/object-inspect/commit/88a907e33afbe408e4b5d6e4e42a33143f88848c)
+
+## [1.0.2](https://github.com/inspect-js/object-inspect/compare/1.0.1...1.0.2) - 2015-08-07
+
+### Commits
+
+- [Fix] Cache `Object.prototype.hasOwnProperty` in case it's deleted later. [`1d0075d`](https://github.com/inspect-js/object-inspect/commit/1d0075d3091dc82246feeb1f9871cb2b8ed227b3)
+- [Dev Deps] Update `tape` [`ca8d5d7`](https://github.com/inspect-js/object-inspect/commit/ca8d5d75635ddbf76f944e628267581e04958457)
+- gitignore node_modules since this is a reusable modules. [`ed41407`](https://github.com/inspect-js/object-inspect/commit/ed41407811743ca530cdeb28f982beb96026af82)
+
+## [1.0.1](https://github.com/inspect-js/object-inspect/compare/1.0.0...1.0.1) - 2015-07-19
+
+### Commits
+
+- Make `inspect` work with symbol primitives and objects, including in node 0.11 and 0.12. [`ddf1b94`](https://github.com/inspect-js/object-inspect/commit/ddf1b94475ab951f1e3bccdc0a48e9073cfbfef4)
+- bump tape [`103d674`](https://github.com/inspect-js/object-inspect/commit/103d67496b504bdcfdd765d303a773f87ec106e2)
+- use newer travis config [`d497276`](https://github.com/inspect-js/object-inspect/commit/d497276c1da14234bb5098a59cf20de75fbc316a)
+
+## [1.0.0](https://github.com/inspect-js/object-inspect/compare/0.4.0...1.0.0) - 2014-08-05
+
+### Commits
+
+- error inspect works properly [`260a22d`](https://github.com/inspect-js/object-inspect/commit/260a22d134d3a8a482c67d52091c6040c34f4299)
+- seen coverage [`57269e8`](https://github.com/inspect-js/object-inspect/commit/57269e8baa992a7439047f47325111fdcbcb8417)
+- htmlelement instance coverage [`397ffe1`](https://github.com/inspect-js/object-inspect/commit/397ffe10a1980350868043ef9de65686d438979f)
+- more element coverage [`6905cc2`](https://github.com/inspect-js/object-inspect/commit/6905cc2f7df35600177e613b0642b4df5efd3eca)
+- failing test for type errors [`385b615`](https://github.com/inspect-js/object-inspect/commit/385b6152e49b51b68449a662f410b084ed7c601a)
+- fn name coverage [`edc906d`](https://github.com/inspect-js/object-inspect/commit/edc906d40fca6b9194d304062c037ee8e398c4c2)
+- server-side element test [`362d1d3`](https://github.com/inspect-js/object-inspect/commit/362d1d3e86f187651c29feeb8478110afada385b)
+- custom inspect fn [`e89b0f6`](https://github.com/inspect-js/object-inspect/commit/e89b0f6fe6d5e03681282af83732a509160435a6)
+- fixed browser test [`b530882`](https://github.com/inspect-js/object-inspect/commit/b5308824a1c8471c5617e394766a03a6977102a9)
+- depth test, matches node [`1cfd9e0`](https://github.com/inspect-js/object-inspect/commit/1cfd9e0285a4ae1dff44101ad482915d9bf47e48)
+- exercise hasOwnProperty path [`8d753fb`](https://github.com/inspect-js/object-inspect/commit/8d753fb362a534fa1106e4d80f2ee9bea06a66d9)
+- more cases covered for errors [`c5c46a5`](https://github.com/inspect-js/object-inspect/commit/c5c46a569ec4606583497e8550f0d8c7ad39a4a4)
+- \W obj key test case [`b0eceee`](https://github.com/inspect-js/object-inspect/commit/b0eceeea6e0eb94d686c1046e99b9e25e5005f75)
+- coverage for explicit depth param [`e12b91c`](https://github.com/inspect-js/object-inspect/commit/e12b91cd59683362f3a0e80f46481a0211e26c15)
+
+## [0.4.0](https://github.com/inspect-js/object-inspect/compare/0.3.1...0.4.0) - 2014-03-21
+
+### Commits
+
+- passing lowbyte interpolation test [`b847511`](https://github.com/inspect-js/object-inspect/commit/b8475114f5def7e7961c5353d48d3d8d9a520985)
+- lowbyte test [`4a2b0e1`](https://github.com/inspect-js/object-inspect/commit/4a2b0e142667fc933f195472759385ac08f3946c)
+
+## [0.3.1](https://github.com/inspect-js/object-inspect/compare/0.3.0...0.3.1) - 2014-03-04
+
+### Commits
+
+- sort keys [`a07b19c`](https://github.com/inspect-js/object-inspect/commit/a07b19cc3b1521a82d4fafb6368b7a9775428a05)
+
+## [0.3.0](https://github.com/inspect-js/object-inspect/compare/0.2.0...0.3.0) - 2014-03-04
+
+### Commits
+
+- [] and {} instead of [ ] and { } [`654c44b`](https://github.com/inspect-js/object-inspect/commit/654c44b2865811f3519e57bb8526e0821caf5c6b)
+
+## [0.2.0](https://github.com/inspect-js/object-inspect/compare/0.1.3...0.2.0) - 2014-03-04
+
+### Commits
+
+- failing holes test [`99cdfad`](https://github.com/inspect-js/object-inspect/commit/99cdfad03c6474740275a75636fe6ca86c77737a)
+- regex already work [`e324033`](https://github.com/inspect-js/object-inspect/commit/e324033267025995ec97d32ed0a65737c99477a6)
+- failing undef/null test [`1f88a00`](https://github.com/inspect-js/object-inspect/commit/1f88a00265d3209719dda8117b7e6360b4c20943)
+- holes in the all example [`7d345f3`](https://github.com/inspect-js/object-inspect/commit/7d345f3676dcbe980cff89a4f6c243269ebbb709)
+- check for .inspect(), fixes Buffer use-case [`c3f7546`](https://github.com/inspect-js/object-inspect/commit/c3f75466dbca125347d49847c05262c292f12b79)
+- fixes for holes [`ce25f73`](https://github.com/inspect-js/object-inspect/commit/ce25f736683de4b92ff27dc5471218415e2d78d8)
+- weird null behavior [`405c1ea`](https://github.com/inspect-js/object-inspect/commit/405c1ea72cd5a8cf3b498c3eaa903d01b9fbcab5)
+- tape is actually a devDependency, upgrade [`703b0ce`](https://github.com/inspect-js/object-inspect/commit/703b0ce6c5817b4245a082564bccd877e0bb6990)
+- put date in the example [`a342219`](https://github.com/inspect-js/object-inspect/commit/a3422190eeaa013215f46df2d0d37b48595ac058)
+- passing the null test [`4ab737e`](https://github.com/inspect-js/object-inspect/commit/4ab737ebf862a75d247ebe51e79307a34d6380d4)
+
+## [0.1.3](https://github.com/inspect-js/object-inspect/compare/0.1.1...0.1.3) - 2013-07-26
+
+### Commits
+
+- special isElement() check [`882768a`](https://github.com/inspect-js/object-inspect/commit/882768a54035d30747be9de1baf14e5aa0daa128)
+- oh right old IEs don't have indexOf either [`36d1275`](https://github.com/inspect-js/object-inspect/commit/36d12756c38b08a74370b0bb696c809e529913a5)
+
+## [0.1.1](https://github.com/inspect-js/object-inspect/compare/0.1.0...0.1.1) - 2013-07-26
+
+### Commits
+
+- tests! [`4422fd9`](https://github.com/inspect-js/object-inspect/commit/4422fd95532c2745aa6c4f786f35f1090be29998)
+- fix for ie&lt;9, doesn't have hasOwnProperty [`6b7d611`](https://github.com/inspect-js/object-inspect/commit/6b7d61183050f6da801ea04473211da226482613)
+- fix for all IEs: no f.name [`4e0c2f6`](https://github.com/inspect-js/object-inspect/commit/4e0c2f6dfd01c306d067d7163319acc97c94ee50)
+- badges [`5ed0d88`](https://github.com/inspect-js/object-inspect/commit/5ed0d88e4e407f9cb327fa4a146c17921f9680f3)
+
+## [0.1.0](https://github.com/inspect-js/object-inspect/compare/0.0.0...0.1.0) - 2013-07-26
+
+### Commits
+
+- [Function] for functions [`ad5c485`](https://github.com/inspect-js/object-inspect/commit/ad5c485098fc83352cb540a60b2548ca56820e0b)
+
+## 0.0.0 - 2013-07-26
+
+### Commits
+
+- working browser example [`34be6b6`](https://github.com/inspect-js/object-inspect/commit/34be6b6548f9ce92bdc3c27572857ba0c4a1218d)
+- package.json etc [`cad51f2`](https://github.com/inspect-js/object-inspect/commit/cad51f23fc6bcf1a456ed6abe16088256c2f632f)
+- docs complete [`b80cce2`](https://github.com/inspect-js/object-inspect/commit/b80cce2490c4e7183a9ee11ea89071f0abec4446)
+- circular example [`4b4a7b9`](https://github.com/inspect-js/object-inspect/commit/4b4a7b92209e4e6b4630976cb6bcd17d14165a59)
+- string rep [`7afb479`](https://github.com/inspect-js/object-inspect/commit/7afb479baa798d27f09e0a178b72ea327f60f5c8)
diff --git a/backend/node_modules/object-inspect/LICENSE b/backend/node_modules/object-inspect/LICENSE
new file mode 100644
index 0000000..ca64cc1
--- /dev/null
+++ b/backend/node_modules/object-inspect/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2013 James Halliday
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/object-inspect/example/all.js b/backend/node_modules/object-inspect/example/all.js
new file mode 100644
index 0000000..2f3355c
--- /dev/null
+++ b/backend/node_modules/object-inspect/example/all.js
@@ -0,0 +1,23 @@
+'use strict';
+
+var inspect = require('../');
+var Buffer = require('safer-buffer').Buffer;
+
+var holes = ['a', 'b'];
+holes[4] = 'e';
+holes[6] = 'g';
+
+var obj = {
+    a: 1,
+    b: [3, 4, undefined, null],
+    c: undefined,
+    d: null,
+    e: {
+        regex: /^x/i,
+        buf: Buffer.from('abc'),
+        holes: holes
+    },
+    now: new Date()
+};
+obj.self = obj;
+console.log(inspect(obj));
diff --git a/backend/node_modules/object-inspect/example/circular.js b/backend/node_modules/object-inspect/example/circular.js
new file mode 100644
index 0000000..487a7c1
--- /dev/null
+++ b/backend/node_modules/object-inspect/example/circular.js
@@ -0,0 +1,6 @@
+'use strict';
+
+var inspect = require('../');
+var obj = { a: 1, b: [3, 4] };
+obj.c = obj;
+console.log(inspect(obj));
diff --git a/backend/node_modules/object-inspect/example/fn.js b/backend/node_modules/object-inspect/example/fn.js
new file mode 100644
index 0000000..9b5db8d
--- /dev/null
+++ b/backend/node_modules/object-inspect/example/fn.js
@@ -0,0 +1,5 @@
+'use strict';
+
+var inspect = require('../');
+var obj = [1, 2, function f(n) { return n + 5; }, 4];
+console.log(inspect(obj));
diff --git a/backend/node_modules/object-inspect/example/inspect.js b/backend/node_modules/object-inspect/example/inspect.js
new file mode 100644
index 0000000..e2df7c9
--- /dev/null
+++ b/backend/node_modules/object-inspect/example/inspect.js
@@ -0,0 +1,10 @@
+'use strict';
+
+/* eslint-env browser */
+var inspect = require('../');
+
+var d = document.createElement('div');
+d.setAttribute('id', 'beep');
+d.innerHTML = '<b>wooo</b><i>iiiii</i>';
+
+console.log(inspect([d, { a: 3, b: 4, c: [5, 6, [7, [8, [9]]]] }]));
diff --git a/backend/node_modules/object-inspect/index.js b/backend/node_modules/object-inspect/index.js
new file mode 100644
index 0000000..a4b2d4c
--- /dev/null
+++ b/backend/node_modules/object-inspect/index.js
@@ -0,0 +1,544 @@
+var hasMap = typeof Map === 'function' && Map.prototype;
+var mapSizeDescriptor = Object.getOwnPropertyDescriptor && hasMap ? Object.getOwnPropertyDescriptor(Map.prototype, 'size') : null;
+var mapSize = hasMap && mapSizeDescriptor && typeof mapSizeDescriptor.get === 'function' ? mapSizeDescriptor.get : null;
+var mapForEach = hasMap && Map.prototype.forEach;
+var hasSet = typeof Set === 'function' && Set.prototype;
+var setSizeDescriptor = Object.getOwnPropertyDescriptor && hasSet ? Object.getOwnPropertyDescriptor(Set.prototype, 'size') : null;
+var setSize = hasSet && setSizeDescriptor && typeof setSizeDescriptor.get === 'function' ? setSizeDescriptor.get : null;
+var setForEach = hasSet && Set.prototype.forEach;
+var hasWeakMap = typeof WeakMap === 'function' && WeakMap.prototype;
+var weakMapHas = hasWeakMap ? WeakMap.prototype.has : null;
+var hasWeakSet = typeof WeakSet === 'function' && WeakSet.prototype;
+var weakSetHas = hasWeakSet ? WeakSet.prototype.has : null;
+var hasWeakRef = typeof WeakRef === 'function' && WeakRef.prototype;
+var weakRefDeref = hasWeakRef ? WeakRef.prototype.deref : null;
+var booleanValueOf = Boolean.prototype.valueOf;
+var objectToString = Object.prototype.toString;
+var functionToString = Function.prototype.toString;
+var $match = String.prototype.match;
+var $slice = String.prototype.slice;
+var $replace = String.prototype.replace;
+var $toUpperCase = String.prototype.toUpperCase;
+var $toLowerCase = String.prototype.toLowerCase;
+var $test = RegExp.prototype.test;
+var $concat = Array.prototype.concat;
+var $join = Array.prototype.join;
+var $arrSlice = Array.prototype.slice;
+var $floor = Math.floor;
+var bigIntValueOf = typeof BigInt === 'function' ? BigInt.prototype.valueOf : null;
+var gOPS = Object.getOwnPropertySymbols;
+var symToString = typeof Symbol === 'function' && typeof Symbol.iterator === 'symbol' ? Symbol.prototype.toString : null;
+var hasShammedSymbols = typeof Symbol === 'function' && typeof Symbol.iterator === 'object';
+// ie, `has-tostringtag/shams
+var toStringTag = typeof Symbol === 'function' && Symbol.toStringTag && (typeof Symbol.toStringTag === hasShammedSymbols ? 'object' : 'symbol')
+    ? Symbol.toStringTag
+    : null;
+var isEnumerable = Object.prototype.propertyIsEnumerable;
+
+var gPO = (typeof Reflect === 'function' ? Reflect.getPrototypeOf : Object.getPrototypeOf) || (
+    [].__proto__ === Array.prototype // eslint-disable-line no-proto
+        ? function (O) {
+            return O.__proto__; // eslint-disable-line no-proto
+        }
+        : null
+);
+
+function addNumericSeparator(num, str) {
+    if (
+        num === Infinity
+        || num === -Infinity
+        || num !== num
+        || (num && num > -1000 && num < 1000)
+        || $test.call(/e/, str)
+    ) {
+        return str;
+    }
+    var sepRegex = /[0-9](?=(?:[0-9]{3})+(?![0-9]))/g;
+    if (typeof num === 'number') {
+        var int = num < 0 ? -$floor(-num) : $floor(num); // trunc(num)
+        if (int !== num) {
+            var intStr = String(int);
+            var dec = $slice.call(str, intStr.length + 1);
+            return $replace.call(intStr, sepRegex, '$&_') + '.' + $replace.call($replace.call(dec, /([0-9]{3})/g, '$&_'), /_$/, '');
+        }
+    }
+    return $replace.call(str, sepRegex, '$&_');
+}
+
+var utilInspect = require('./util.inspect');
+var inspectCustom = utilInspect.custom;
+var inspectSymbol = isSymbol(inspectCustom) ? inspectCustom : null;
+
+var quotes = {
+    __proto__: null,
+    'double': '"',
+    single: "'"
+};
+var quoteREs = {
+    __proto__: null,
+    'double': /(["\\])/g,
+    single: /(['\\])/g
+};
+
+module.exports = function inspect_(obj, options, depth, seen) {
+    var opts = options || {};
+
+    if (has(opts, 'quoteStyle') && !has(quotes, opts.quoteStyle)) {
+        throw new TypeError('option "quoteStyle" must be "single" or "double"');
+    }
+    if (
+        has(opts, 'maxStringLength') && (typeof opts.maxStringLength === 'number'
+            ? opts.maxStringLength < 0 && opts.maxStringLength !== Infinity
+            : opts.maxStringLength !== null
+        )
+    ) {
+        throw new TypeError('option "maxStringLength", if provided, must be a positive integer, Infinity, or `null`');
+    }
+    var customInspect = has(opts, 'customInspect') ? opts.customInspect : true;
+    if (typeof customInspect !== 'boolean' && customInspect !== 'symbol') {
+        throw new TypeError('option "customInspect", if provided, must be `true`, `false`, or `\'symbol\'`');
+    }
+
+    if (
+        has(opts, 'indent')
+        && opts.indent !== null
+        && opts.indent !== '\t'
+        && !(parseInt(opts.indent, 10) === opts.indent && opts.indent > 0)
+    ) {
+        throw new TypeError('option "indent" must be "\\t", an integer > 0, or `null`');
+    }
+    if (has(opts, 'numericSeparator') && typeof opts.numericSeparator !== 'boolean') {
+        throw new TypeError('option "numericSeparator", if provided, must be `true` or `false`');
+    }
+    var numericSeparator = opts.numericSeparator;
+
+    if (typeof obj === 'undefined') {
+        return 'undefined';
+    }
+    if (obj === null) {
+        return 'null';
+    }
+    if (typeof obj === 'boolean') {
+        return obj ? 'true' : 'false';
+    }
+
+    if (typeof obj === 'string') {
+        return inspectString(obj, opts);
+    }
+    if (typeof obj === 'number') {
+        if (obj === 0) {
+            return Infinity / obj > 0 ? '0' : '-0';
+        }
+        var str = String(obj);
+        return numericSeparator ? addNumericSeparator(obj, str) : str;
+    }
+    if (typeof obj === 'bigint') {
+        var bigIntStr = String(obj) + 'n';
+        return numericSeparator ? addNumericSeparator(obj, bigIntStr) : bigIntStr;
+    }
+
+    var maxDepth = typeof opts.depth === 'undefined' ? 5 : opts.depth;
+    if (typeof depth === 'undefined') { depth = 0; }
+    if (depth >= maxDepth && maxDepth > 0 && typeof obj === 'object') {
+        return isArray(obj) ? '[Array]' : '[Object]';
+    }
+
+    var indent = getIndent(opts, depth);
+
+    if (typeof seen === 'undefined') {
+        seen = [];
+    } else if (indexOf(seen, obj) >= 0) {
+        return '[Circular]';
+    }
+
+    function inspect(value, from, noIndent) {
+        if (from) {
+            seen = $arrSlice.call(seen);
+            seen.push(from);
+        }
+        if (noIndent) {
+            var newOpts = {
+                depth: opts.depth
+            };
+            if (has(opts, 'quoteStyle')) {
+                newOpts.quoteStyle = opts.quoteStyle;
+            }
+            return inspect_(value, newOpts, depth + 1, seen);
+        }
+        return inspect_(value, opts, depth + 1, seen);
+    }
+
+    if (typeof obj === 'function' && !isRegExp(obj)) { // in older engines, regexes are callable
+        var name = nameOf(obj);
+        var keys = arrObjKeys(obj, inspect);
+        return '[Function' + (name ? ': ' + name : ' (anonymous)') + ']' + (keys.length > 0 ? ' { ' + $join.call(keys, ', ') + ' }' : '');
+    }
+    if (isSymbol(obj)) {
+        var symString = hasShammedSymbols ? $replace.call(String(obj), /^(Symbol\(.*\))_[^)]*$/, '$1') : symToString.call(obj);
+        return typeof obj === 'object' && !hasShammedSymbols ? markBoxed(symString) : symString;
+    }
+    if (isElement(obj)) {
+        var s = '<' + $toLowerCase.call(String(obj.nodeName));
+        var attrs = obj.attributes || [];
+        for (var i = 0; i < attrs.length; i++) {
+            s += ' ' + attrs[i].name + '=' + wrapQuotes(quote(attrs[i].value), 'double', opts);
+        }
+        s += '>';
+        if (obj.childNodes && obj.childNodes.length) { s += '...'; }
+        s += '</' + $toLowerCase.call(String(obj.nodeName)) + '>';
+        return s;
+    }
+    if (isArray(obj)) {
+        if (obj.length === 0) { return '[]'; }
+        var xs = arrObjKeys(obj, inspect);
+        if (indent && !singleLineValues(xs)) {
+            return '[' + indentedJoin(xs, indent) + ']';
+        }
+        return '[ ' + $join.call(xs, ', ') + ' ]';
+    }
+    if (isError(obj)) {
+        var parts = arrObjKeys(obj, inspect);
+        if (!('cause' in Error.prototype) && 'cause' in obj && !isEnumerable.call(obj, 'cause')) {
+            return '{ [' + String(obj) + '] ' + $join.call($concat.call('[cause]: ' + inspect(obj.cause), parts), ', ') + ' }';
+        }
+        if (parts.length === 0) { return '[' + String(obj) + ']'; }
+        return '{ [' + String(obj) + '] ' + $join.call(parts, ', ') + ' }';
+    }
+    if (typeof obj === 'object' && customInspect) {
+        if (inspectSymbol && typeof obj[inspectSymbol] === 'function' && utilInspect) {
+            return utilInspect(obj, { depth: maxDepth - depth });
+        } else if (customInspect !== 'symbol' && typeof obj.inspect === 'function') {
+            return obj.inspect();
+        }
+    }
+    if (isMap(obj)) {
+        var mapParts = [];
+        if (mapForEach) {
+            mapForEach.call(obj, function (value, key) {
+                mapParts.push(inspect(key, obj, true) + ' => ' + inspect(value, obj));
+            });
+        }
+        return collectionOf('Map', mapSize.call(obj), mapParts, indent);
+    }
+    if (isSet(obj)) {
+        var setParts = [];
+        if (setForEach) {
+            setForEach.call(obj, function (value) {
+                setParts.push(inspect(value, obj));
+            });
+        }
+        return collectionOf('Set', setSize.call(obj), setParts, indent);
+    }
+    if (isWeakMap(obj)) {
+        return weakCollectionOf('WeakMap');
+    }
+    if (isWeakSet(obj)) {
+        return weakCollectionOf('WeakSet');
+    }
+    if (isWeakRef(obj)) {
+        return weakCollectionOf('WeakRef');
+    }
+    if (isNumber(obj)) {
+        return markBoxed(inspect(Number(obj)));
+    }
+    if (isBigInt(obj)) {
+        return markBoxed(inspect(bigIntValueOf.call(obj)));
+    }
+    if (isBoolean(obj)) {
+        return markBoxed(booleanValueOf.call(obj));
+    }
+    if (isString(obj)) {
+        return markBoxed(inspect(String(obj)));
+    }
+    // note: in IE 8, sometimes `global !== window` but both are the prototypes of each other
+    /* eslint-env browser */
+    if (typeof window !== 'undefined' && obj === window) {
+        return '{ [object Window] }';
+    }
+    if (
+        (typeof globalThis !== 'undefined' && obj === globalThis)
+        || (typeof global !== 'undefined' && obj === global)
+    ) {
+        return '{ [object globalThis] }';
+    }
+    if (!isDate(obj) && !isRegExp(obj)) {
+        var ys = arrObjKeys(obj, inspect);
+        var isPlainObject = gPO ? gPO(obj) === Object.prototype : obj instanceof Object || obj.constructor === Object;
+        var protoTag = obj instanceof Object ? '' : 'null prototype';
+        var stringTag = !isPlainObject && toStringTag && Object(obj) === obj && toStringTag in obj ? $slice.call(toStr(obj), 8, -1) : protoTag ? 'Object' : '';
+        var constructorTag = isPlainObject || typeof obj.constructor !== 'function' ? '' : obj.constructor.name ? obj.constructor.name + ' ' : '';
+        var tag = constructorTag + (stringTag || protoTag ? '[' + $join.call($concat.call([], stringTag || [], protoTag || []), ': ') + '] ' : '');
+        if (ys.length === 0) { return tag + '{}'; }
+        if (indent) {
+            return tag + '{' + indentedJoin(ys, indent) + '}';
+        }
+        return tag + '{ ' + $join.call(ys, ', ') + ' }';
+    }
+    return String(obj);
+};
+
+function wrapQuotes(s, defaultStyle, opts) {
+    var style = opts.quoteStyle || defaultStyle;
+    var quoteChar = quotes[style];
+    return quoteChar + s + quoteChar;
+}
+
+function quote(s) {
+    return $replace.call(String(s), /"/g, '&quot;');
+}
+
+function canTrustToString(obj) {
+    return !toStringTag || !(typeof obj === 'object' && (toStringTag in obj || typeof obj[toStringTag] !== 'undefined'));
+}
+function isArray(obj) { return toStr(obj) === '[object Array]' && canTrustToString(obj); }
+function isDate(obj) { return toStr(obj) === '[object Date]' && canTrustToString(obj); }
+function isRegExp(obj) { return toStr(obj) === '[object RegExp]' && canTrustToString(obj); }
+function isError(obj) { return toStr(obj) === '[object Error]' && canTrustToString(obj); }
+function isString(obj) { return toStr(obj) === '[object String]' && canTrustToString(obj); }
+function isNumber(obj) { return toStr(obj) === '[object Number]' && canTrustToString(obj); }
+function isBoolean(obj) { return toStr(obj) === '[object Boolean]' && canTrustToString(obj); }
+
+// Symbol and BigInt do have Symbol.toStringTag by spec, so that can't be used to eliminate false positives
+function isSymbol(obj) {
+    if (hasShammedSymbols) {
+        return obj && typeof obj === 'object' && obj instanceof Symbol;
+    }
+    if (typeof obj === 'symbol') {
+        return true;
+    }
+    if (!obj || typeof obj !== 'object' || !symToString) {
+        return false;
+    }
+    try {
+        symToString.call(obj);
+        return true;
+    } catch (e) {}
+    return false;
+}
+
+function isBigInt(obj) {
+    if (!obj || typeof obj !== 'object' || !bigIntValueOf) {
+        return false;
+    }
+    try {
+        bigIntValueOf.call(obj);
+        return true;
+    } catch (e) {}
+    return false;
+}
+
+var hasOwn = Object.prototype.hasOwnProperty || function (key) { return key in this; };
+function has(obj, key) {
+    return hasOwn.call(obj, key);
+}
+
+function toStr(obj) {
+    return objectToString.call(obj);
+}
+
+function nameOf(f) {
+    if (f.name) { return f.name; }
+    var m = $match.call(functionToString.call(f), /^function\s*([\w$]+)/);
+    if (m) { return m[1]; }
+    return null;
+}
+
+function indexOf(xs, x) {
+    if (xs.indexOf) { return xs.indexOf(x); }
+    for (var i = 0, l = xs.length; i < l; i++) {
+        if (xs[i] === x) { return i; }
+    }
+    return -1;
+}
+
+function isMap(x) {
+    if (!mapSize || !x || typeof x !== 'object') {
+        return false;
+    }
+    try {
+        mapSize.call(x);
+        try {
+            setSize.call(x);
+        } catch (s) {
+            return true;
+        }
+        return x instanceof Map; // core-js workaround, pre-v2.5.0
+    } catch (e) {}
+    return false;
+}
+
+function isWeakMap(x) {
+    if (!weakMapHas || !x || typeof x !== 'object') {
+        return false;
+    }
+    try {
+        weakMapHas.call(x, weakMapHas);
+        try {
+            weakSetHas.call(x, weakSetHas);
+        } catch (s) {
+            return true;
+        }
+        return x instanceof WeakMap; // core-js workaround, pre-v2.5.0
+    } catch (e) {}
+    return false;
+}
+
+function isWeakRef(x) {
+    if (!weakRefDeref || !x || typeof x !== 'object') {
+        return false;
+    }
+    try {
+        weakRefDeref.call(x);
+        return true;
+    } catch (e) {}
+    return false;
+}
+
+function isSet(x) {
+    if (!setSize || !x || typeof x !== 'object') {
+        return false;
+    }
+    try {
+        setSize.call(x);
+        try {
+            mapSize.call(x);
+        } catch (m) {
+            return true;
+        }
+        return x instanceof Set; // core-js workaround, pre-v2.5.0
+    } catch (e) {}
+    return false;
+}
+
+function isWeakSet(x) {
+    if (!weakSetHas || !x || typeof x !== 'object') {
+        return false;
+    }
+    try {
+        weakSetHas.call(x, weakSetHas);
+        try {
+            weakMapHas.call(x, weakMapHas);
+        } catch (s) {
+            return true;
+        }
+        return x instanceof WeakSet; // core-js workaround, pre-v2.5.0
+    } catch (e) {}
+    return false;
+}
+
+function isElement(x) {
+    if (!x || typeof x !== 'object') { return false; }
+    if (typeof HTMLElement !== 'undefined' && x instanceof HTMLElement) {
+        return true;
+    }
+    return typeof x.nodeName === 'string' && typeof x.getAttribute === 'function';
+}
+
+function inspectString(str, opts) {
+    if (str.length > opts.maxStringLength) {
+        var remaining = str.length - opts.maxStringLength;
+        var trailer = '... ' + remaining + ' more character' + (remaining > 1 ? 's' : '');
+        return inspectString($slice.call(str, 0, opts.maxStringLength), opts) + trailer;
+    }
+    var quoteRE = quoteREs[opts.quoteStyle || 'single'];
+    quoteRE.lastIndex = 0;
+    // eslint-disable-next-line no-control-regex
+    var s = $replace.call($replace.call(str, quoteRE, '\\$1'), /[\x00-\x1f]/g, lowbyte);
+    return wrapQuotes(s, 'single', opts);
+}
+
+function lowbyte(c) {
+    var n = c.charCodeAt(0);
+    var x = {
+        8: 'b',
+        9: 't',
+        10: 'n',
+        12: 'f',
+        13: 'r'
+    }[n];
+    if (x) { return '\\' + x; }
+    return '\\x' + (n < 0x10 ? '0' : '') + $toUpperCase.call(n.toString(16));
+}
+
+function markBoxed(str) {
+    return 'Object(' + str + ')';
+}
+
+function weakCollectionOf(type) {
+    return type + ' { ? }';
+}
+
+function collectionOf(type, size, entries, indent) {
+    var joinedEntries = indent ? indentedJoin(entries, indent) : $join.call(entries, ', ');
+    return type + ' (' + size + ') {' + joinedEntries + '}';
+}
+
+function singleLineValues(xs) {
+    for (var i = 0; i < xs.length; i++) {
+        if (indexOf(xs[i], '\n') >= 0) {
+            return false;
+        }
+    }
+    return true;
+}
+
+function getIndent(opts, depth) {
+    var baseIndent;
+    if (opts.indent === '\t') {
+        baseIndent = '\t';
+    } else if (typeof opts.indent === 'number' && opts.indent > 0) {
+        baseIndent = $join.call(Array(opts.indent + 1), ' ');
+    } else {
+        return null;
+    }
+    return {
+        base: baseIndent,
+        prev: $join.call(Array(depth + 1), baseIndent)
+    };
+}
+
+function indentedJoin(xs, indent) {
+    if (xs.length === 0) { return ''; }
+    var lineJoiner = '\n' + indent.prev + indent.base;
+    return lineJoiner + $join.call(xs, ',' + lineJoiner) + '\n' + indent.prev;
+}
+
+function arrObjKeys(obj, inspect) {
+    var isArr = isArray(obj);
+    var xs = [];
+    if (isArr) {
+        xs.length = obj.length;
+        for (var i = 0; i < obj.length; i++) {
+            xs[i] = has(obj, i) ? inspect(obj[i], obj) : '';
+        }
+    }
+    var syms = typeof gOPS === 'function' ? gOPS(obj) : [];
+    var symMap;
+    if (hasShammedSymbols) {
+        symMap = {};
+        for (var k = 0; k < syms.length; k++) {
+            symMap['$' + syms[k]] = syms[k];
+        }
+    }
+
+    for (var key in obj) { // eslint-disable-line no-restricted-syntax
+        if (!has(obj, key)) { continue; } // eslint-disable-line no-restricted-syntax, no-continue
+        if (isArr && String(Number(key)) === key && key < obj.length) { continue; } // eslint-disable-line no-restricted-syntax, no-continue
+        if (hasShammedSymbols && symMap['$' + key] instanceof Symbol) {
+            // this is to prevent shammed Symbols, which are stored as strings, from being included in the string key section
+            continue; // eslint-disable-line no-restricted-syntax, no-continue
+        } else if ($test.call(/[^\w$]/, key)) {
+            xs.push(inspect(key, obj) + ': ' + inspect(obj[key], obj));
+        } else {
+            xs.push(key + ': ' + inspect(obj[key], obj));
+        }
+    }
+    if (typeof gOPS === 'function') {
+        for (var j = 0; j < syms.length; j++) {
+            if (isEnumerable.call(obj, syms[j])) {
+                xs.push('[' + inspect(syms[j]) + ']: ' + inspect(obj[syms[j]], obj));
+            }
+        }
+    }
+    return xs;
+}
diff --git a/backend/node_modules/object-inspect/package-support.json b/backend/node_modules/object-inspect/package-support.json
new file mode 100644
index 0000000..5cc12d0
--- /dev/null
+++ b/backend/node_modules/object-inspect/package-support.json
@@ -0,0 +1,20 @@
+{
+  "versions": [
+    {
+      "version": "*",
+      "target": {
+        "node": "all"
+      },
+      "response": {
+        "type": "time-permitting"
+      },
+      "backing": {
+        "npm-funding": true,
+        "donations": [
+          "https://github.com/ljharb",
+          "https://tidelift.com/funding/github/npm/object-inspect"
+        ]
+      }
+    }
+  ]
+}
diff --git a/backend/node_modules/object-inspect/package.json b/backend/node_modules/object-inspect/package.json
new file mode 100644
index 0000000..9fd97ff
--- /dev/null
+++ b/backend/node_modules/object-inspect/package.json
@@ -0,0 +1,105 @@
+{
+  "name": "object-inspect",
+  "version": "1.13.4",
+  "description": "string representations of objects in node and the browser",
+  "main": "index.js",
+  "sideEffects": false,
+  "devDependencies": {
+    "@ljharb/eslint-config": "^21.1.1",
+    "@pkgjs/support": "^0.0.6",
+    "auto-changelog": "^2.5.0",
+    "core-js": "^2.6.12",
+    "error-cause": "^1.0.8",
+    "es-value-fixtures": "^1.7.1",
+    "eslint": "=8.8.0",
+    "for-each": "^0.3.4",
+    "functions-have-names": "^1.2.3",
+    "glob": "=10.3.7",
+    "globalthis": "^1.0.4",
+    "has-symbols": "^1.1.0",
+    "has-tostringtag": "^1.0.2",
+    "in-publish": "^2.0.1",
+    "jackspeak": "=2.1.1",
+    "make-arrow-function": "^1.2.0",
+    "mock-property": "^1.1.0",
+    "npmignore": "^0.3.1",
+    "nyc": "^10.3.2",
+    "safe-publish-latest": "^2.0.0",
+    "safer-buffer": "^2.1.2",
+    "semver": "^6.3.1",
+    "string.prototype.repeat": "^1.0.0",
+    "tape": "^5.9.0"
+  },
+  "scripts": {
+    "prepack": "npmignore --auto --commentLines=autogenerated",
+    "prepublish": "not-in-publish || npm run prepublishOnly",
+    "prepublishOnly": "safe-publish-latest",
+    "pretest": "npm run lint",
+    "lint": "eslint --ext=js,mjs .",
+    "postlint": "npx @pkgjs/support validate",
+    "test": "npm run tests-only && npm run test:corejs",
+    "tests-only": "nyc tape 'test/*.js'",
+    "test:corejs": "nyc tape test-core-js.js 'test/*.js'",
+    "posttest": "npx npm@'>=10.2' audit --production",
+    "version": "auto-changelog && git add CHANGELOG.md",
+    "postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+  },
+  "testling": {
+    "files": [
+      "test/*.js",
+      "test/browser/*.js"
+    ],
+    "browsers": [
+      "ie/6..latest",
+      "chrome/latest",
+      "firefox/latest",
+      "safari/latest",
+      "opera/latest",
+      "iphone/latest",
+      "ipad/latest",
+      "android/latest"
+    ]
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/inspect-js/object-inspect.git"
+  },
+  "homepage": "https://github.com/inspect-js/object-inspect",
+  "keywords": [
+    "inspect",
+    "util.inspect",
+    "object",
+    "stringify",
+    "pretty"
+  ],
+  "author": {
+    "name": "James Halliday",
+    "email": "mail@substack.net",
+    "url": "http://substack.net"
+  },
+  "funding": {
+    "url": "https://github.com/sponsors/ljharb"
+  },
+  "license": "MIT",
+  "browser": {
+    "./util.inspect.js": false
+  },
+  "auto-changelog": {
+    "output": "CHANGELOG.md",
+    "template": "keepachangelog",
+    "unreleased": false,
+    "commitLimit": false,
+    "backfillLimit": false,
+    "hideCredit": true
+  },
+  "publishConfig": {
+    "ignore": [
+      ".github/workflows",
+      "./test-core-js.js"
+    ]
+  },
+  "support": true,
+  "engines": {
+    "node": ">= 0.4"
+  }
+}
diff --git a/backend/node_modules/object-inspect/readme.markdown b/backend/node_modules/object-inspect/readme.markdown
new file mode 100644
index 0000000..f91617d
--- /dev/null
+++ b/backend/node_modules/object-inspect/readme.markdown
@@ -0,0 +1,84 @@
+# object-inspect <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+string representations of objects in node and the browser
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+# example
+
+## circular
+
+``` js
+var inspect = require('object-inspect');
+var obj = { a: 1, b: [3,4] };
+obj.c = obj;
+console.log(inspect(obj));
+```
+
+## dom element
+
+``` js
+var inspect = require('object-inspect');
+
+var d = document.createElement('div');
+d.setAttribute('id', 'beep');
+d.innerHTML = '<b>wooo</b><i>iiiii</i>';
+
+console.log(inspect([ d, { a: 3, b : 4, c: [5,6,[7,[8,[9]]]] } ]));
+```
+
+output:
+
+```
+[ <div id="beep">...</div>, { a: 3, b: 4, c: [ 5, 6, [ 7, [ 8, [ ... ] ] ] ] } ]
+```
+
+# methods
+
+``` js
+var inspect = require('object-inspect')
+```
+
+## var s = inspect(obj, opts={})
+
+Return a string `s` with the string representation of `obj` up to a depth of `opts.depth`.
+
+Additional options:
+  - `quoteStyle`: must be "single" or "double", if present. Default `'single'` for strings, `'double'` for HTML elements.
+  - `maxStringLength`: must be `0`, a positive integer, `Infinity`, or `null`, if present. Default `Infinity`.
+  - `customInspect`: When `true`, a custom inspect method function will be invoked (either undere the `util.inspect.custom` symbol, or the `inspect` property). When the string `'symbol'`, only the symbol method will be invoked. Default `true`.
+  - `indent`: must be "\t", `null`, or a positive integer. Default `null`.
+  - `numericSeparator`: must be a boolean, if present. Default `false`. If `true`, all numbers will be printed with numeric separators (eg, `1234.5678` will be printed as `'1_234.567_8'`)
+
+# install
+
+With [npm](https://npmjs.org) do:
+
+```
+npm install object-inspect
+```
+
+# license
+
+MIT
+
+[package-url]: https://npmjs.org/package/object-inspect
+[npm-version-svg]: https://versionbadg.es/inspect-js/object-inspect.svg
+[deps-svg]: https://david-dm.org/inspect-js/object-inspect.svg
+[deps-url]: https://david-dm.org/inspect-js/object-inspect
+[dev-deps-svg]: https://david-dm.org/inspect-js/object-inspect/dev-status.svg
+[dev-deps-url]: https://david-dm.org/inspect-js/object-inspect#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/object-inspect.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/object-inspect.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/object-inspect.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=object-inspect
+[codecov-image]: https://codecov.io/gh/inspect-js/object-inspect/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/inspect-js/object-inspect/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/inspect-js/object-inspect
+[actions-url]: https://github.com/inspect-js/object-inspect/actions
diff --git a/backend/node_modules/object-inspect/test-core-js.js b/backend/node_modules/object-inspect/test-core-js.js
new file mode 100644
index 0000000..e53c400
--- /dev/null
+++ b/backend/node_modules/object-inspect/test-core-js.js
@@ -0,0 +1,26 @@
+'use strict';
+
+require('core-js');
+
+var inspect = require('./');
+var test = require('tape');
+
+test('Maps', function (t) {
+    t.equal(inspect(new Map([[1, 2]])), 'Map (1) {1 => 2}');
+    t.end();
+});
+
+test('WeakMaps', function (t) {
+    t.equal(inspect(new WeakMap([[{}, 2]])), 'WeakMap { ? }');
+    t.end();
+});
+
+test('Sets', function (t) {
+    t.equal(inspect(new Set([[1, 2]])), 'Set (1) {[ 1, 2 ]}');
+    t.end();
+});
+
+test('WeakSets', function (t) {
+    t.equal(inspect(new WeakSet([[1, 2]])), 'WeakSet { ? }');
+    t.end();
+});
diff --git a/backend/node_modules/object-inspect/test/bigint.js b/backend/node_modules/object-inspect/test/bigint.js
new file mode 100644
index 0000000..4ecc31d
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/bigint.js
@@ -0,0 +1,58 @@
+'use strict';
+
+var inspect = require('../');
+var test = require('tape');
+var hasToStringTag = require('has-tostringtag/shams')();
+
+test('bigint', { skip: typeof BigInt === 'undefined' }, function (t) {
+    t.test('primitives', function (st) {
+        st.plan(3);
+
+        st.equal(inspect(BigInt(-256)), '-256n');
+        st.equal(inspect(BigInt(0)), '0n');
+        st.equal(inspect(BigInt(256)), '256n');
+    });
+
+    t.test('objects', function (st) {
+        st.plan(3);
+
+        st.equal(inspect(Object(BigInt(-256))), 'Object(-256n)');
+        st.equal(inspect(Object(BigInt(0))), 'Object(0n)');
+        st.equal(inspect(Object(BigInt(256))), 'Object(256n)');
+    });
+
+    t.test('syntactic primitives', function (st) {
+        st.plan(3);
+
+        /* eslint-disable no-new-func */
+        st.equal(inspect(Function('return -256n')()), '-256n');
+        st.equal(inspect(Function('return 0n')()), '0n');
+        st.equal(inspect(Function('return 256n')()), '256n');
+    });
+
+    t.test('toStringTag', { skip: !hasToStringTag }, function (st) {
+        st.plan(1);
+
+        var faker = {};
+        faker[Symbol.toStringTag] = 'BigInt';
+        st.equal(
+            inspect(faker),
+            '{ [Symbol(Symbol.toStringTag)]: \'BigInt\' }',
+            'object lying about being a BigInt inspects as an object'
+        );
+    });
+
+    t.test('numericSeparator', function (st) {
+        st.equal(inspect(BigInt(0), { numericSeparator: false }), '0n', '0n, numericSeparator false');
+        st.equal(inspect(BigInt(0), { numericSeparator: true }), '0n', '0n, numericSeparator true');
+
+        st.equal(inspect(BigInt(1234), { numericSeparator: false }), '1234n', '1234n, numericSeparator false');
+        st.equal(inspect(BigInt(1234), { numericSeparator: true }), '1_234n', '1234n, numericSeparator true');
+        st.equal(inspect(BigInt(-1234), { numericSeparator: false }), '-1234n', '1234n, numericSeparator false');
+        st.equal(inspect(BigInt(-1234), { numericSeparator: true }), '-1_234n', '1234n, numericSeparator true');
+
+        st.end();
+    });
+
+    t.end();
+});
diff --git a/backend/node_modules/object-inspect/test/browser/dom.js b/backend/node_modules/object-inspect/test/browser/dom.js
new file mode 100644
index 0000000..210c0b2
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/browser/dom.js
@@ -0,0 +1,15 @@
+var inspect = require('../../');
+var test = require('tape');
+
+test('dom element', function (t) {
+    t.plan(1);
+
+    var d = document.createElement('div');
+    d.setAttribute('id', 'beep');
+    d.innerHTML = '<b>wooo</b><i>iiiii</i>';
+
+    t.equal(
+        inspect([d, { a: 3, b: 4, c: [5, 6, [7, [8, [9]]]] }]),
+        '[ <div id="beep">...</div>, { a: 3, b: 4, c: [ 5, 6, [ 7, [ 8, [Object] ] ] ] } ]'
+    );
+});
diff --git a/backend/node_modules/object-inspect/test/circular.js b/backend/node_modules/object-inspect/test/circular.js
new file mode 100644
index 0000000..5df4233
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/circular.js
@@ -0,0 +1,16 @@
+var inspect = require('../');
+var test = require('tape');
+
+test('circular', function (t) {
+    t.plan(2);
+    var obj = { a: 1, b: [3, 4] };
+    obj.c = obj;
+    t.equal(inspect(obj), '{ a: 1, b: [ 3, 4 ], c: [Circular] }');
+
+    var double = {};
+    double.a = [double];
+    double.b = {};
+    double.b.inner = double.b;
+    double.b.obj = double;
+    t.equal(inspect(double), '{ a: [ [Circular] ], b: { inner: [Circular], obj: [Circular] } }');
+});
diff --git a/backend/node_modules/object-inspect/test/deep.js b/backend/node_modules/object-inspect/test/deep.js
new file mode 100644
index 0000000..99ce32a
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/deep.js
@@ -0,0 +1,12 @@
+var inspect = require('../');
+var test = require('tape');
+
+test('deep', function (t) {
+    t.plan(4);
+    var obj = [[[[[[500]]]]]];
+    t.equal(inspect(obj), '[ [ [ [ [ [Array] ] ] ] ] ]');
+    t.equal(inspect(obj, { depth: 4 }), '[ [ [ [ [Array] ] ] ] ]');
+    t.equal(inspect(obj, { depth: 2 }), '[ [ [Array] ] ]');
+
+    t.equal(inspect([[[{ a: 1 }]]], { depth: 3 }), '[ [ [ [Object] ] ] ]');
+});
diff --git a/backend/node_modules/object-inspect/test/element.js b/backend/node_modules/object-inspect/test/element.js
new file mode 100644
index 0000000..47fa9e2
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/element.js
@@ -0,0 +1,53 @@
+var inspect = require('../');
+var test = require('tape');
+
+test('element', function (t) {
+    t.plan(3);
+    var elem = {
+        nodeName: 'div',
+        attributes: [{ name: 'class', value: 'row' }],
+        getAttribute: function (key) { return key; },
+        childNodes: []
+    };
+    var obj = [1, elem, 3];
+    t.deepEqual(inspect(obj), '[ 1, <div class="row"></div>, 3 ]');
+    t.deepEqual(inspect(obj, { quoteStyle: 'single' }), "[ 1, <div class='row'></div>, 3 ]");
+    t.deepEqual(inspect(obj, { quoteStyle: 'double' }), '[ 1, <div class="row"></div>, 3 ]');
+});
+
+test('element no attr', function (t) {
+    t.plan(1);
+    var elem = {
+        nodeName: 'div',
+        getAttribute: function (key) { return key; },
+        childNodes: []
+    };
+    var obj = [1, elem, 3];
+    t.deepEqual(inspect(obj), '[ 1, <div></div>, 3 ]');
+});
+
+test('element with contents', function (t) {
+    t.plan(1);
+    var elem = {
+        nodeName: 'div',
+        getAttribute: function (key) { return key; },
+        childNodes: [{ nodeName: 'b' }]
+    };
+    var obj = [1, elem, 3];
+    t.deepEqual(inspect(obj), '[ 1, <div>...</div>, 3 ]');
+});
+
+test('element instance', function (t) {
+    t.plan(1);
+    var h = global.HTMLElement;
+    global.HTMLElement = function (name, attr) {
+        this.nodeName = name;
+        this.attributes = attr;
+    };
+    global.HTMLElement.prototype.getAttribute = function () {};
+
+    var elem = new global.HTMLElement('div', []);
+    var obj = [1, elem, 3];
+    t.deepEqual(inspect(obj), '[ 1, <div></div>, 3 ]');
+    global.HTMLElement = h;
+});
diff --git a/backend/node_modules/object-inspect/test/err.js b/backend/node_modules/object-inspect/test/err.js
new file mode 100644
index 0000000..cc1d884
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/err.js
@@ -0,0 +1,48 @@
+var test = require('tape');
+var ErrorWithCause = require('error-cause/Error');
+
+var inspect = require('../');
+
+test('type error', function (t) {
+    t.plan(1);
+    var aerr = new TypeError();
+    aerr.foo = 555;
+    aerr.bar = [1, 2, 3];
+
+    var berr = new TypeError('tuv');
+    berr.baz = 555;
+
+    var cerr = new SyntaxError();
+    cerr.message = 'whoa';
+    cerr['a-b'] = 5;
+
+    var withCause = new ErrorWithCause('foo', { cause: 'bar' });
+    var withCausePlus = new ErrorWithCause('foo', { cause: 'bar' });
+    withCausePlus.foo = 'bar';
+    var withUndefinedCause = new ErrorWithCause('foo', { cause: undefined });
+    var withEnumerableCause = new Error('foo');
+    withEnumerableCause.cause = 'bar';
+
+    var obj = [
+        new TypeError(),
+        new TypeError('xxx'),
+        aerr,
+        berr,
+        cerr,
+        withCause,
+        withCausePlus,
+        withUndefinedCause,
+        withEnumerableCause
+    ];
+    t.equal(inspect(obj), '[ ' + [
+        '[TypeError]',
+        '[TypeError: xxx]',
+        '{ [TypeError] foo: 555, bar: [ 1, 2, 3 ] }',
+        '{ [TypeError: tuv] baz: 555 }',
+        '{ [SyntaxError: whoa] message: \'whoa\', \'a-b\': 5 }',
+        'cause' in Error.prototype ? '[Error: foo]' : '{ [Error: foo] [cause]: \'bar\' }',
+        '{ [Error: foo] ' + ('cause' in Error.prototype ? '' : '[cause]: \'bar\', ') + 'foo: \'bar\' }',
+        'cause' in Error.prototype ? '[Error: foo]' : '{ [Error: foo] [cause]: undefined }',
+        '{ [Error: foo] cause: \'bar\' }'
+    ].join(', ') + ' ]');
+});
diff --git a/backend/node_modules/object-inspect/test/fakes.js b/backend/node_modules/object-inspect/test/fakes.js
new file mode 100644
index 0000000..a65c08c
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/fakes.js
@@ -0,0 +1,29 @@
+'use strict';
+
+var inspect = require('../');
+var test = require('tape');
+var hasToStringTag = require('has-tostringtag/shams')();
+var forEach = require('for-each');
+
+test('fakes', { skip: !hasToStringTag }, function (t) {
+    forEach([
+        'Array',
+        'Boolean',
+        'Date',
+        'Error',
+        'Number',
+        'RegExp',
+        'String'
+    ], function (expected) {
+        var faker = {};
+        faker[Symbol.toStringTag] = expected;
+
+        t.equal(
+            inspect(faker),
+            '{ [Symbol(Symbol.toStringTag)]: \'' + expected + '\' }',
+            'faker masquerading as ' + expected + ' is not shown as one'
+        );
+    });
+
+    t.end();
+});
diff --git a/backend/node_modules/object-inspect/test/fn.js b/backend/node_modules/object-inspect/test/fn.js
new file mode 100644
index 0000000..de3ca62
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/fn.js
@@ -0,0 +1,76 @@
+var inspect = require('../');
+var test = require('tape');
+var arrow = require('make-arrow-function')();
+var functionsHaveConfigurableNames = require('functions-have-names').functionsHaveConfigurableNames();
+
+test('function', function (t) {
+    t.plan(1);
+    var obj = [1, 2, function f(n) { return n; }, 4];
+    t.equal(inspect(obj), '[ 1, 2, [Function: f], 4 ]');
+});
+
+test('function name', function (t) {
+    t.plan(1);
+    var f = (function () {
+        return function () {};
+    }());
+    f.toString = function toStr() { return 'function xxx () {}'; };
+    var obj = [1, 2, f, 4];
+    t.equal(inspect(obj), '[ 1, 2, [Function (anonymous)] { toString: [Function: toStr] }, 4 ]');
+});
+
+test('anon function', function (t) {
+    var f = (function () {
+        return function () {};
+    }());
+    var obj = [1, 2, f, 4];
+    t.equal(inspect(obj), '[ 1, 2, [Function (anonymous)], 4 ]');
+
+    t.end();
+});
+
+test('arrow function', { skip: !arrow }, function (t) {
+    t.equal(inspect(arrow), '[Function (anonymous)]');
+
+    t.end();
+});
+
+test('truly nameless function', { skip: !arrow || !functionsHaveConfigurableNames }, function (t) {
+    function f() {}
+    Object.defineProperty(f, 'name', { value: false });
+    t.equal(f.name, false);
+    t.equal(
+        inspect(f),
+        '[Function: f]',
+        'named function with falsy `.name` does not hide its original name'
+    );
+
+    function g() {}
+    Object.defineProperty(g, 'name', { value: true });
+    t.equal(g.name, true);
+    t.equal(
+        inspect(g),
+        '[Function: true]',
+        'named function with truthy `.name` hides its original name'
+    );
+
+    var anon = function () {}; // eslint-disable-line func-style
+    Object.defineProperty(anon, 'name', { value: null });
+    t.equal(anon.name, null);
+    t.equal(
+        inspect(anon),
+        '[Function (anonymous)]',
+        'anon function with falsy `.name` does not hide its anonymity'
+    );
+
+    var anon2 = function () {}; // eslint-disable-line func-style
+    Object.defineProperty(anon2, 'name', { value: 1 });
+    t.equal(anon2.name, 1);
+    t.equal(
+        inspect(anon2),
+        '[Function: 1]',
+        'anon function with truthy `.name` hides its anonymity'
+    );
+
+    t.end();
+});
diff --git a/backend/node_modules/object-inspect/test/global.js b/backend/node_modules/object-inspect/test/global.js
new file mode 100644
index 0000000..c57216a
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/global.js
@@ -0,0 +1,17 @@
+'use strict';
+
+var inspect = require('../');
+
+var test = require('tape');
+var globalThis = require('globalthis')();
+
+test('global object', function (t) {
+    /* eslint-env browser */
+    var expected = typeof window === 'undefined' ? 'globalThis' : 'Window';
+    t.equal(
+        inspect([globalThis]),
+        '[ { [object ' + expected + '] } ]'
+    );
+
+    t.end();
+});
diff --git a/backend/node_modules/object-inspect/test/has.js b/backend/node_modules/object-inspect/test/has.js
new file mode 100644
index 0000000..01800de
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/has.js
@@ -0,0 +1,15 @@
+'use strict';
+
+var inspect = require('../');
+var test = require('tape');
+var mockProperty = require('mock-property');
+
+test('when Object#hasOwnProperty is deleted', function (t) {
+    t.plan(1);
+    var arr = [1, , 3]; // eslint-disable-line no-sparse-arrays
+
+    t.teardown(mockProperty(Array.prototype, 1, { value: 2 })); // this is needed to account for "in" vs "hasOwnProperty"
+    t.teardown(mockProperty(Object.prototype, 'hasOwnProperty', { 'delete': true }));
+
+    t.equal(inspect(arr), '[ 1, , 3 ]');
+});
diff --git a/backend/node_modules/object-inspect/test/holes.js b/backend/node_modules/object-inspect/test/holes.js
new file mode 100644
index 0000000..87fc8c8
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/holes.js
@@ -0,0 +1,15 @@
+var test = require('tape');
+var inspect = require('../');
+
+var xs = ['a', 'b'];
+xs[5] = 'f';
+xs[7] = 'j';
+xs[8] = 'k';
+
+test('holes', function (t) {
+    t.plan(1);
+    t.equal(
+        inspect(xs),
+        "[ 'a', 'b', , , , 'f', , 'j', 'k' ]"
+    );
+});
diff --git a/backend/node_modules/object-inspect/test/indent-option.js b/backend/node_modules/object-inspect/test/indent-option.js
new file mode 100644
index 0000000..89d8fce
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/indent-option.js
@@ -0,0 +1,271 @@
+var test = require('tape');
+var forEach = require('for-each');
+
+var inspect = require('../');
+
+test('bad indent options', function (t) {
+    forEach([
+        undefined,
+        true,
+        false,
+        -1,
+        1.2,
+        Infinity,
+        -Infinity,
+        NaN
+    ], function (indent) {
+        t['throws'](
+            function () { inspect('', { indent: indent }); },
+            TypeError,
+            inspect(indent) + ' is invalid'
+        );
+    });
+
+    t.end();
+});
+
+test('simple object with indent', function (t) {
+    t.plan(2);
+
+    var obj = { a: 1, b: 2 };
+
+    var expectedSpaces = [
+        '{',
+        '  a: 1,',
+        '  b: 2',
+        '}'
+    ].join('\n');
+    var expectedTabs = [
+        '{',
+        '	a: 1,',
+        '	b: 2',
+        '}'
+    ].join('\n');
+
+    t.equal(inspect(obj, { indent: 2 }), expectedSpaces, 'two');
+    t.equal(inspect(obj, { indent: '\t' }), expectedTabs, 'tabs');
+});
+
+test('two deep object with indent', function (t) {
+    t.plan(2);
+
+    var obj = { a: 1, b: { c: 3, d: 4 } };
+
+    var expectedSpaces = [
+        '{',
+        '  a: 1,',
+        '  b: {',
+        '    c: 3,',
+        '    d: 4',
+        '  }',
+        '}'
+    ].join('\n');
+    var expectedTabs = [
+        '{',
+        '	a: 1,',
+        '	b: {',
+        '		c: 3,',
+        '		d: 4',
+        '	}',
+        '}'
+    ].join('\n');
+
+    t.equal(inspect(obj, { indent: 2 }), expectedSpaces, 'two');
+    t.equal(inspect(obj, { indent: '\t' }), expectedTabs, 'tabs');
+});
+
+test('simple array with all single line elements', function (t) {
+    t.plan(2);
+
+    var obj = [1, 2, 3, 'asdf\nsdf'];
+
+    var expected = '[ 1, 2, 3, \'asdf\\nsdf\' ]';
+
+    t.equal(inspect(obj, { indent: 2 }), expected, 'two');
+    t.equal(inspect(obj, { indent: '\t' }), expected, 'tabs');
+});
+
+test('array with complex elements', function (t) {
+    t.plan(2);
+
+    var obj = [1, { a: 1, b: { c: 1 } }, 'asdf\nsdf'];
+
+    var expectedSpaces = [
+        '[',
+        '  1,',
+        '  {',
+        '    a: 1,',
+        '    b: {',
+        '      c: 1',
+        '    }',
+        '  },',
+        '  \'asdf\\nsdf\'',
+        ']'
+    ].join('\n');
+    var expectedTabs = [
+        '[',
+        '	1,',
+        '	{',
+        '		a: 1,',
+        '		b: {',
+        '			c: 1',
+        '		}',
+        '	},',
+        '	\'asdf\\nsdf\'',
+        ']'
+    ].join('\n');
+
+    t.equal(inspect(obj, { indent: 2 }), expectedSpaces, 'two');
+    t.equal(inspect(obj, { indent: '\t' }), expectedTabs, 'tabs');
+});
+
+test('values', function (t) {
+    t.plan(2);
+    var obj = [{}, [], { 'a-b': 5 }];
+
+    var expectedSpaces = [
+        '[',
+        '  {},',
+        '  [],',
+        '  {',
+        '    \'a-b\': 5',
+        '  }',
+        ']'
+    ].join('\n');
+    var expectedTabs = [
+        '[',
+        '	{},',
+        '	[],',
+        '	{',
+        '		\'a-b\': 5',
+        '	}',
+        ']'
+    ].join('\n');
+
+    t.equal(inspect(obj, { indent: 2 }), expectedSpaces, 'two');
+    t.equal(inspect(obj, { indent: '\t' }), expectedTabs, 'tabs');
+});
+
+test('Map', { skip: typeof Map !== 'function' }, function (t) {
+    var map = new Map();
+    map.set({ a: 1 }, ['b']);
+    map.set(3, NaN);
+
+    var expectedStringSpaces = [
+        'Map (2) {',
+        '  { a: 1 } => [ \'b\' ],',
+        '  3 => NaN',
+        '}'
+    ].join('\n');
+    var expectedStringTabs = [
+        'Map (2) {',
+        '	{ a: 1 } => [ \'b\' ],',
+        '	3 => NaN',
+        '}'
+    ].join('\n');
+    var expectedStringTabsDoubleQuotes = [
+        'Map (2) {',
+        '	{ a: 1 } => [ "b" ],',
+        '	3 => NaN',
+        '}'
+    ].join('\n');
+
+    t.equal(
+        inspect(map, { indent: 2 }),
+        expectedStringSpaces,
+        'Map keys are not indented (two)'
+    );
+    t.equal(
+        inspect(map, { indent: '\t' }),
+        expectedStringTabs,
+        'Map keys are not indented (tabs)'
+    );
+    t.equal(
+        inspect(map, { indent: '\t', quoteStyle: 'double' }),
+        expectedStringTabsDoubleQuotes,
+        'Map keys are not indented (tabs + double quotes)'
+    );
+
+    t.equal(inspect(new Map(), { indent: 2 }), 'Map (0) {}', 'empty Map should show as empty (two)');
+    t.equal(inspect(new Map(), { indent: '\t' }), 'Map (0) {}', 'empty Map should show as empty (tabs)');
+
+    var nestedMap = new Map();
+    nestedMap.set(nestedMap, map);
+    var expectedNestedSpaces = [
+        'Map (1) {',
+        '  [Circular] => Map (2) {',
+        '    { a: 1 } => [ \'b\' ],',
+        '    3 => NaN',
+        '  }',
+        '}'
+    ].join('\n');
+    var expectedNestedTabs = [
+        'Map (1) {',
+        '	[Circular] => Map (2) {',
+        '		{ a: 1 } => [ \'b\' ],',
+        '		3 => NaN',
+        '	}',
+        '}'
+    ].join('\n');
+    t.equal(inspect(nestedMap, { indent: 2 }), expectedNestedSpaces, 'Map containing a Map should work (two)');
+    t.equal(inspect(nestedMap, { indent: '\t' }), expectedNestedTabs, 'Map containing a Map should work (tabs)');
+
+    t.end();
+});
+
+test('Set', { skip: typeof Set !== 'function' }, function (t) {
+    var set = new Set();
+    set.add({ a: 1 });
+    set.add(['b']);
+    var expectedStringSpaces = [
+        'Set (2) {',
+        '  {',
+        '    a: 1',
+        '  },',
+        '  [ \'b\' ]',
+        '}'
+    ].join('\n');
+    var expectedStringTabs = [
+        'Set (2) {',
+        '	{',
+        '		a: 1',
+        '	},',
+        '	[ \'b\' ]',
+        '}'
+    ].join('\n');
+    t.equal(inspect(set, { indent: 2 }), expectedStringSpaces, 'new Set([{ a: 1 }, ["b"]]) should show size and contents (two)');
+    t.equal(inspect(set, { indent: '\t' }), expectedStringTabs, 'new Set([{ a: 1 }, ["b"]]) should show size and contents (tabs)');
+
+    t.equal(inspect(new Set(), { indent: 2 }), 'Set (0) {}', 'empty Set should show as empty (two)');
+    t.equal(inspect(new Set(), { indent: '\t' }), 'Set (0) {}', 'empty Set should show as empty (tabs)');
+
+    var nestedSet = new Set();
+    nestedSet.add(set);
+    nestedSet.add(nestedSet);
+    var expectedNestedSpaces = [
+        'Set (2) {',
+        '  Set (2) {',
+        '    {',
+        '      a: 1',
+        '    },',
+        '    [ \'b\' ]',
+        '  },',
+        '  [Circular]',
+        '}'
+    ].join('\n');
+    var expectedNestedTabs = [
+        'Set (2) {',
+        '	Set (2) {',
+        '		{',
+        '			a: 1',
+        '		},',
+        '		[ \'b\' ]',
+        '	},',
+        '	[Circular]',
+        '}'
+    ].join('\n');
+    t.equal(inspect(nestedSet, { indent: 2 }), expectedNestedSpaces, 'Set containing a Set should work (two)');
+    t.equal(inspect(nestedSet, { indent: '\t' }), expectedNestedTabs, 'Set containing a Set should work (tabs)');
+
+    t.end();
+});
diff --git a/backend/node_modules/object-inspect/test/inspect.js b/backend/node_modules/object-inspect/test/inspect.js
new file mode 100644
index 0000000..1abf81b
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/inspect.js
@@ -0,0 +1,139 @@
+var test = require('tape');
+var hasSymbols = require('has-symbols/shams')();
+var utilInspect = require('../util.inspect');
+var repeat = require('string.prototype.repeat');
+
+var inspect = require('..');
+
+test('inspect', function (t) {
+    t.plan(5);
+
+    var obj = [{ inspect: function xyzInspect() { return '!XYZ¡'; } }, []];
+    var stringResult = '[ !XYZ¡, [] ]';
+    var falseResult = '[ { inspect: [Function: xyzInspect] }, [] ]';
+
+    t.equal(inspect(obj), stringResult);
+    t.equal(inspect(obj, { customInspect: true }), stringResult);
+    t.equal(inspect(obj, { customInspect: 'symbol' }), falseResult);
+    t.equal(inspect(obj, { customInspect: false }), falseResult);
+    t['throws'](
+        function () { inspect(obj, { customInspect: 'not a boolean or "symbol"' }); },
+        TypeError,
+        '`customInspect` must be a boolean or the string "symbol"'
+    );
+});
+
+test('inspect custom symbol', { skip: !hasSymbols || !utilInspect || !utilInspect.custom }, function (t) {
+    t.plan(4);
+
+    var obj = { inspect: function stringInspect() { return 'string'; } };
+    obj[utilInspect.custom] = function custom() { return 'symbol'; };
+
+    var symbolResult = '[ symbol, [] ]';
+    var stringResult = '[ string, [] ]';
+    var falseResult = '[ { inspect: [Function: stringInspect]' + (utilInspect.custom ? ', [' + inspect(utilInspect.custom) + ']: [Function: custom]' : '') + ' }, [] ]';
+
+    var symbolStringFallback = utilInspect.custom ? symbolResult : stringResult;
+    var symbolFalseFallback = utilInspect.custom ? symbolResult : falseResult;
+
+    t.equal(inspect([obj, []]), symbolStringFallback);
+    t.equal(inspect([obj, []], { customInspect: true }), symbolStringFallback);
+    t.equal(inspect([obj, []], { customInspect: 'symbol' }), symbolFalseFallback);
+    t.equal(inspect([obj, []], { customInspect: false }), falseResult);
+});
+
+test('symbols', { skip: !hasSymbols }, function (t) {
+    t.plan(2);
+
+    var obj = { a: 1 };
+    obj[Symbol('test')] = 2;
+    obj[Symbol.iterator] = 3;
+    Object.defineProperty(obj, Symbol('non-enum'), {
+        enumerable: false,
+        value: 4
+    });
+
+    if (typeof Symbol.iterator === 'symbol') {
+        t.equal(inspect(obj), '{ a: 1, [Symbol(test)]: 2, [Symbol(Symbol.iterator)]: 3 }', 'object with symbols');
+        t.equal(inspect([obj, []]), '[ { a: 1, [Symbol(test)]: 2, [Symbol(Symbol.iterator)]: 3 }, [] ]', 'object with symbols in array');
+    } else {
+        // symbol sham key ordering is unreliable
+        t.match(
+            inspect(obj),
+            /^(?:{ a: 1, \[Symbol\(test\)\]: 2, \[Symbol\(Symbol.iterator\)\]: 3 }|{ a: 1, \[Symbol\(Symbol.iterator\)\]: 3, \[Symbol\(test\)\]: 2 })$/,
+            'object with symbols (nondeterministic symbol sham key ordering)'
+        );
+        t.match(
+            inspect([obj, []]),
+            /^\[ (?:{ a: 1, \[Symbol\(test\)\]: 2, \[Symbol\(Symbol.iterator\)\]: 3 }|{ a: 1, \[Symbol\(Symbol.iterator\)\]: 3, \[Symbol\(test\)\]: 2 }), \[\] \]$/,
+            'object with symbols in array (nondeterministic symbol sham key ordering)'
+        );
+    }
+});
+
+test('maxStringLength', function (t) {
+    t['throws'](
+        function () { inspect('', { maxStringLength: -1 }); },
+        TypeError,
+        'maxStringLength must be >= 0, or Infinity, not negative'
+    );
+
+    var str = repeat('a', 1e8);
+
+    t.equal(
+        inspect([str], { maxStringLength: 10 }),
+        '[ \'aaaaaaaaaa\'... 99999990 more characters ]',
+        'maxStringLength option limits output'
+    );
+
+    t.equal(
+        inspect(['f'], { maxStringLength: null }),
+        '[ \'\'... 1 more character ]',
+        'maxStringLength option accepts `null`'
+    );
+
+    t.equal(
+        inspect([str], { maxStringLength: Infinity }),
+        '[ \'' + str + '\' ]',
+        'maxStringLength option accepts ∞'
+    );
+
+    t.end();
+});
+
+test('inspect options', { skip: !utilInspect.custom }, function (t) {
+    var obj = {};
+    obj[utilInspect.custom] = function () {
+        return JSON.stringify(arguments);
+    };
+    t.equal(
+        inspect(obj),
+        utilInspect(obj, { depth: 5 }),
+        'custom symbols will use node\'s inspect'
+    );
+    t.equal(
+        inspect(obj, { depth: 2 }),
+        utilInspect(obj, { depth: 2 }),
+        'a reduced depth will be passed to node\'s inspect'
+    );
+    t.equal(
+        inspect({ d1: obj }, { depth: 3 }),
+        '{ d1: ' + utilInspect(obj, { depth: 2 }) + ' }',
+        'deep objects will receive a reduced depth'
+    );
+    t.equal(
+        inspect({ d1: obj }, { depth: 1 }),
+        '{ d1: [Object] }',
+        'unlike nodejs inspect, customInspect will not be used once the depth is exceeded.'
+    );
+    t.end();
+});
+
+test('inspect URL', { skip: typeof URL === 'undefined' }, function (t) {
+    t.match(
+        inspect(new URL('https://nodejs.org')),
+        /nodejs\.org/, // Different environments stringify it differently
+        'url can be inspected'
+    );
+    t.end();
+});
diff --git a/backend/node_modules/object-inspect/test/lowbyte.js b/backend/node_modules/object-inspect/test/lowbyte.js
new file mode 100644
index 0000000..68a345d
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/lowbyte.js
@@ -0,0 +1,12 @@
+var test = require('tape');
+var inspect = require('../');
+
+var obj = { x: 'a\r\nb', y: '\x05! \x1f \x12' };
+
+test('interpolate low bytes', function (t) {
+    t.plan(1);
+    t.equal(
+        inspect(obj),
+        "{ x: 'a\\r\\nb', y: '\\x05! \\x1F \\x12' }"
+    );
+});
diff --git a/backend/node_modules/object-inspect/test/number.js b/backend/node_modules/object-inspect/test/number.js
new file mode 100644
index 0000000..8f287e8
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/number.js
@@ -0,0 +1,58 @@
+var test = require('tape');
+var v = require('es-value-fixtures');
+var forEach = require('for-each');
+
+var inspect = require('../');
+
+test('negative zero', function (t) {
+    t.equal(inspect(0), '0', 'inspect(0) === "0"');
+    t.equal(inspect(Object(0)), 'Object(0)', 'inspect(Object(0)) === "Object(0)"');
+
+    t.equal(inspect(-0), '-0', 'inspect(-0) === "-0"');
+    t.equal(inspect(Object(-0)), 'Object(-0)', 'inspect(Object(-0)) === "Object(-0)"');
+
+    t.end();
+});
+
+test('numericSeparator', function (t) {
+    forEach(v.nonBooleans, function (nonBoolean) {
+        t['throws'](
+            function () { inspect(true, { numericSeparator: nonBoolean }); },
+            TypeError,
+            inspect(nonBoolean) + ' is not a boolean'
+        );
+    });
+
+    t.test('3 digit numbers', function (st) {
+        var failed = false;
+        for (var i = -999; i < 1000; i += 1) {
+            var actual = inspect(i);
+            var actualSepNo = inspect(i, { numericSeparator: false });
+            var actualSepYes = inspect(i, { numericSeparator: true });
+            var expected = String(i);
+            if (actual !== expected || actualSepNo !== expected || actualSepYes !== expected) {
+                failed = true;
+                t.equal(actual, expected);
+                t.equal(actualSepNo, expected);
+                t.equal(actualSepYes, expected);
+            }
+        }
+
+        st.notOk(failed, 'all 3 digit numbers passed');
+
+        st.end();
+    });
+
+    t.equal(inspect(1e3), '1000', '1000');
+    t.equal(inspect(1e3, { numericSeparator: false }), '1000', '1000, numericSeparator false');
+    t.equal(inspect(1e3, { numericSeparator: true }), '1_000', '1000, numericSeparator true');
+    t.equal(inspect(-1e3), '-1000', '-1000');
+    t.equal(inspect(-1e3, { numericSeparator: false }), '-1000', '-1000, numericSeparator false');
+    t.equal(inspect(-1e3, { numericSeparator: true }), '-1_000', '-1000, numericSeparator true');
+
+    t.equal(inspect(1234.5678, { numericSeparator: true }), '1_234.567_8', 'fractional numbers get separators');
+    t.equal(inspect(1234.56789, { numericSeparator: true }), '1_234.567_89', 'fractional numbers get separators');
+    t.equal(inspect(1234.567891, { numericSeparator: true }), '1_234.567_891', 'fractional numbers get separators');
+
+    t.end();
+});
diff --git a/backend/node_modules/object-inspect/test/quoteStyle.js b/backend/node_modules/object-inspect/test/quoteStyle.js
new file mode 100644
index 0000000..da23e63
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/quoteStyle.js
@@ -0,0 +1,26 @@
+'use strict';
+
+var inspect = require('../');
+var test = require('tape');
+
+test('quoteStyle option', function (t) {
+    t['throws'](function () { inspect(null, { quoteStyle: false }); }, 'false is not a valid value');
+    t['throws'](function () { inspect(null, { quoteStyle: true }); }, 'true is not a valid value');
+    t['throws'](function () { inspect(null, { quoteStyle: '' }); }, '"" is not a valid value');
+    t['throws'](function () { inspect(null, { quoteStyle: {} }); }, '{} is not a valid value');
+    t['throws'](function () { inspect(null, { quoteStyle: [] }); }, '[] is not a valid value');
+    t['throws'](function () { inspect(null, { quoteStyle: 42 }); }, '42 is not a valid value');
+    t['throws'](function () { inspect(null, { quoteStyle: NaN }); }, 'NaN is not a valid value');
+    t['throws'](function () { inspect(null, { quoteStyle: function () {} }); }, 'a function is not a valid value');
+
+    t.equal(inspect('"', { quoteStyle: 'single' }), '\'"\'', 'double quote, quoteStyle: "single"');
+    t.equal(inspect('"', { quoteStyle: 'double' }), '"\\""', 'double quote, quoteStyle: "double"');
+
+    t.equal(inspect('\'', { quoteStyle: 'single' }), '\'\\\'\'', 'single quote, quoteStyle: "single"');
+    t.equal(inspect('\'', { quoteStyle: 'double' }), '"\'"', 'single quote, quoteStyle: "double"');
+
+    t.equal(inspect('`', { quoteStyle: 'single' }), '\'`\'', 'backtick, quoteStyle: "single"');
+    t.equal(inspect('`', { quoteStyle: 'double' }), '"`"', 'backtick, quoteStyle: "double"');
+
+    t.end();
+});
diff --git a/backend/node_modules/object-inspect/test/toStringTag.js b/backend/node_modules/object-inspect/test/toStringTag.js
new file mode 100644
index 0000000..95f8270
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/toStringTag.js
@@ -0,0 +1,40 @@
+'use strict';
+
+var test = require('tape');
+var hasToStringTag = require('has-tostringtag/shams')();
+
+var inspect = require('../');
+
+test('Symbol.toStringTag', { skip: !hasToStringTag }, function (t) {
+    t.plan(4);
+
+    var obj = { a: 1 };
+    t.equal(inspect(obj), '{ a: 1 }', 'object, no Symbol.toStringTag');
+
+    obj[Symbol.toStringTag] = 'foo';
+    t.equal(inspect(obj), '{ a: 1, [Symbol(Symbol.toStringTag)]: \'foo\' }', 'object with Symbol.toStringTag');
+
+    t.test('null objects', { skip: 'toString' in { __proto__: null } }, function (st) {
+        st.plan(2);
+
+        var dict = { __proto__: null, a: 1 };
+        st.equal(inspect(dict), '[Object: null prototype] { a: 1 }', 'null object with Symbol.toStringTag');
+
+        dict[Symbol.toStringTag] = 'Dict';
+        st.equal(inspect(dict), '[Dict: null prototype] { a: 1, [Symbol(Symbol.toStringTag)]: \'Dict\' }', 'null object with Symbol.toStringTag');
+    });
+
+    t.test('instances', function (st) {
+        st.plan(4);
+
+        function C() {
+            this.a = 1;
+        }
+        st.equal(Object.prototype.toString.call(new C()), '[object Object]', 'instance, no toStringTag, Object.prototype.toString');
+        st.equal(inspect(new C()), 'C { a: 1 }', 'instance, no toStringTag');
+
+        C.prototype[Symbol.toStringTag] = 'Class!';
+        st.equal(Object.prototype.toString.call(new C()), '[object Class!]', 'instance, with toStringTag, Object.prototype.toString');
+        st.equal(inspect(new C()), 'C [Class!] { a: 1 }', 'instance, with toStringTag');
+    });
+});
diff --git a/backend/node_modules/object-inspect/test/undef.js b/backend/node_modules/object-inspect/test/undef.js
new file mode 100644
index 0000000..e3f4961
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/undef.js
@@ -0,0 +1,12 @@
+var test = require('tape');
+var inspect = require('../');
+
+var obj = { a: 1, b: [3, 4, undefined, null], c: undefined, d: null };
+
+test('undef and null', function (t) {
+    t.plan(1);
+    t.equal(
+        inspect(obj),
+        '{ a: 1, b: [ 3, 4, undefined, null ], c: undefined, d: null }'
+    );
+});
diff --git a/backend/node_modules/object-inspect/test/values.js b/backend/node_modules/object-inspect/test/values.js
new file mode 100644
index 0000000..15986cd
--- /dev/null
+++ b/backend/node_modules/object-inspect/test/values.js
@@ -0,0 +1,261 @@
+'use strict';
+
+var inspect = require('../');
+var test = require('tape');
+var mockProperty = require('mock-property');
+var hasSymbols = require('has-symbols/shams')();
+var hasToStringTag = require('has-tostringtag/shams')();
+var forEach = require('for-each');
+var semver = require('semver');
+
+test('values', function (t) {
+    t.plan(1);
+    var obj = [{}, [], { 'a-b': 5 }];
+    t.equal(inspect(obj), '[ {}, [], { \'a-b\': 5 } ]');
+});
+
+test('arrays with properties', function (t) {
+    t.plan(1);
+    var arr = [3];
+    arr.foo = 'bar';
+    var obj = [1, 2, arr];
+    obj.baz = 'quux';
+    obj.index = -1;
+    t.equal(inspect(obj), '[ 1, 2, [ 3, foo: \'bar\' ], baz: \'quux\', index: -1 ]');
+});
+
+test('has', function (t) {
+    t.plan(1);
+    t.teardown(mockProperty(Object.prototype, 'hasOwnProperty', { 'delete': true }));
+
+    t.equal(inspect({ a: 1, b: 2 }), '{ a: 1, b: 2 }');
+});
+
+test('indexOf seen', function (t) {
+    t.plan(1);
+    var xs = [1, 2, 3, {}];
+    xs.push(xs);
+
+    var seen = [];
+    seen.indexOf = undefined;
+
+    t.equal(
+        inspect(xs, {}, 0, seen),
+        '[ 1, 2, 3, {}, [Circular] ]'
+    );
+});
+
+test('seen seen', function (t) {
+    t.plan(1);
+    var xs = [1, 2, 3];
+
+    var seen = [xs];
+    seen.indexOf = undefined;
+
+    t.equal(
+        inspect(xs, {}, 0, seen),
+        '[Circular]'
+    );
+});
+
+test('seen seen seen', function (t) {
+    t.plan(1);
+    var xs = [1, 2, 3];
+
+    var seen = [5, xs];
+    seen.indexOf = undefined;
+
+    t.equal(
+        inspect(xs, {}, 0, seen),
+        '[Circular]'
+    );
+});
+
+test('symbols', { skip: !hasSymbols }, function (t) {
+    var sym = Symbol('foo');
+    t.equal(inspect(sym), 'Symbol(foo)', 'Symbol("foo") should be "Symbol(foo)"');
+    if (typeof sym === 'symbol') {
+        // Symbol shams are incapable of differentiating boxed from unboxed symbols
+        t.equal(inspect(Object(sym)), 'Object(Symbol(foo))', 'Object(Symbol("foo")) should be "Object(Symbol(foo))"');
+    }
+
+    t.test('toStringTag', { skip: !hasToStringTag }, function (st) {
+        st.plan(1);
+
+        var faker = {};
+        faker[Symbol.toStringTag] = 'Symbol';
+        st.equal(
+            inspect(faker),
+            '{ [Symbol(Symbol.toStringTag)]: \'Symbol\' }',
+            'object lying about being a Symbol inspects as an object'
+        );
+    });
+
+    t.end();
+});
+
+test('Map', { skip: typeof Map !== 'function' }, function (t) {
+    var map = new Map();
+    map.set({ a: 1 }, ['b']);
+    map.set(3, NaN);
+    var expectedString = 'Map (2) {' + inspect({ a: 1 }) + ' => ' + inspect(['b']) + ', 3 => NaN}';
+    t.equal(inspect(map), expectedString, 'new Map([[{ a: 1 }, ["b"]], [3, NaN]]) should show size and contents');
+    t.equal(inspect(new Map()), 'Map (0) {}', 'empty Map should show as empty');
+
+    var nestedMap = new Map();
+    nestedMap.set(nestedMap, map);
+    t.equal(inspect(nestedMap), 'Map (1) {[Circular] => ' + expectedString + '}', 'Map containing a Map should work');
+
+    t.end();
+});
+
+test('WeakMap', { skip: typeof WeakMap !== 'function' }, function (t) {
+    var map = new WeakMap();
+    map.set({ a: 1 }, ['b']);
+    var expectedString = 'WeakMap { ? }';
+    t.equal(inspect(map), expectedString, 'new WeakMap([[{ a: 1 }, ["b"]]]) should not show size or contents');
+    t.equal(inspect(new WeakMap()), 'WeakMap { ? }', 'empty WeakMap should not show as empty');
+
+    t.end();
+});
+
+test('Set', { skip: typeof Set !== 'function' }, function (t) {
+    var set = new Set();
+    set.add({ a: 1 });
+    set.add(['b']);
+    var expectedString = 'Set (2) {' + inspect({ a: 1 }) + ', ' + inspect(['b']) + '}';
+    t.equal(inspect(set), expectedString, 'new Set([{ a: 1 }, ["b"]]) should show size and contents');
+    t.equal(inspect(new Set()), 'Set (0) {}', 'empty Set should show as empty');
+
+    var nestedSet = new Set();
+    nestedSet.add(set);
+    nestedSet.add(nestedSet);
+    t.equal(inspect(nestedSet), 'Set (2) {' + expectedString + ', [Circular]}', 'Set containing a Set should work');
+
+    t.end();
+});
+
+test('WeakSet', { skip: typeof WeakSet !== 'function' }, function (t) {
+    var map = new WeakSet();
+    map.add({ a: 1 });
+    var expectedString = 'WeakSet { ? }';
+    t.equal(inspect(map), expectedString, 'new WeakSet([{ a: 1 }]) should not show size or contents');
+    t.equal(inspect(new WeakSet()), 'WeakSet { ? }', 'empty WeakSet should not show as empty');
+
+    t.end();
+});
+
+test('WeakRef', { skip: typeof WeakRef !== 'function' }, function (t) {
+    var ref = new WeakRef({ a: 1 });
+    var expectedString = 'WeakRef { ? }';
+    t.equal(inspect(ref), expectedString, 'new WeakRef({ a: 1 }) should not show contents');
+
+    t.end();
+});
+
+test('FinalizationRegistry', { skip: typeof FinalizationRegistry !== 'function' }, function (t) {
+    var registry = new FinalizationRegistry(function () {});
+    var expectedString = 'FinalizationRegistry [FinalizationRegistry] {}';
+    t.equal(inspect(registry), expectedString, 'new FinalizationRegistry(function () {}) should work normallys');
+
+    t.end();
+});
+
+test('Strings', function (t) {
+    var str = 'abc';
+
+    t.equal(inspect(str), "'" + str + "'", 'primitive string shows as such');
+    t.equal(inspect(str, { quoteStyle: 'single' }), "'" + str + "'", 'primitive string shows as such, single quoted');
+    t.equal(inspect(str, { quoteStyle: 'double' }), '"' + str + '"', 'primitive string shows as such, double quoted');
+    t.equal(inspect(Object(str)), 'Object(' + inspect(str) + ')', 'String object shows as such');
+    t.equal(inspect(Object(str), { quoteStyle: 'single' }), 'Object(' + inspect(str, { quoteStyle: 'single' }) + ')', 'String object shows as such, single quoted');
+    t.equal(inspect(Object(str), { quoteStyle: 'double' }), 'Object(' + inspect(str, { quoteStyle: 'double' }) + ')', 'String object shows as such, double quoted');
+
+    t.end();
+});
+
+test('Numbers', function (t) {
+    var num = 42;
+
+    t.equal(inspect(num), String(num), 'primitive number shows as such');
+    t.equal(inspect(Object(num)), 'Object(' + inspect(num) + ')', 'Number object shows as such');
+
+    t.end();
+});
+
+test('Booleans', function (t) {
+    t.equal(inspect(true), String(true), 'primitive true shows as such');
+    t.equal(inspect(Object(true)), 'Object(' + inspect(true) + ')', 'Boolean object true shows as such');
+
+    t.equal(inspect(false), String(false), 'primitive false shows as such');
+    t.equal(inspect(Object(false)), 'Object(' + inspect(false) + ')', 'Boolean false object shows as such');
+
+    t.end();
+});
+
+test('Date', function (t) {
+    var now = new Date();
+    t.equal(inspect(now), String(now), 'Date shows properly');
+    t.equal(inspect(new Date(NaN)), 'Invalid Date', 'Invalid Date shows properly');
+
+    t.end();
+});
+
+test('RegExps', function (t) {
+    t.equal(inspect(/a/g), '/a/g', 'regex shows properly');
+    t.equal(inspect(new RegExp('abc', 'i')), '/abc/i', 'new RegExp shows properly');
+
+    var match = 'abc abc'.match(/[ab]+/);
+    delete match.groups; // for node < 10
+    t.equal(inspect(match), '[ \'ab\', index: 0, input: \'abc abc\' ]', 'RegExp match object shows properly');
+
+    t.end();
+});
+
+test('Proxies', { skip: typeof Proxy !== 'function' || !hasToStringTag }, function (t) {
+    var target = { proxy: true };
+    var fake = new Proxy(target, { has: function () { return false; } });
+
+    // needed to work around a weird difference in node v6.0 - v6.4 where non-present properties are not logged
+    var isNode60 = semver.satisfies(process.version, '6.0 - 6.4');
+
+    forEach([
+        'Boolean',
+        'Number',
+        'String',
+        'Symbol',
+        'Date'
+    ], function (tag) {
+        target[Symbol.toStringTag] = tag;
+
+        t.equal(
+            inspect(fake),
+            '{ ' + (isNode60 ? '' : 'proxy: true, ') + '[Symbol(Symbol.toStringTag)]: \'' + tag + '\' }',
+            'Proxy for + ' + tag + ' shows as the target, which has no slots'
+        );
+    });
+
+    t.end();
+});
+
+test('fakers', { skip: !hasToStringTag }, function (t) {
+    var target = { proxy: false };
+
+    forEach([
+        'Boolean',
+        'Number',
+        'String',
+        'Symbol',
+        'Date'
+    ], function (tag) {
+        target[Symbol.toStringTag] = tag;
+
+        t.equal(
+            inspect(target),
+            '{ proxy: false, [Symbol(Symbol.toStringTag)]: \'' + tag + '\' }',
+            'Object pretending to be ' + tag + ' does not trick us'
+        );
+    });
+
+    t.end();
+});
diff --git a/backend/node_modules/object-inspect/util.inspect.js b/backend/node_modules/object-inspect/util.inspect.js
new file mode 100644
index 0000000..7784fab
--- /dev/null
+++ b/backend/node_modules/object-inspect/util.inspect.js
@@ -0,0 +1 @@
+module.exports = require('util').inspect;
diff --git a/backend/node_modules/on-finished/HISTORY.md b/backend/node_modules/on-finished/HISTORY.md
new file mode 100644
index 0000000..1917595
--- /dev/null
+++ b/backend/node_modules/on-finished/HISTORY.md
@@ -0,0 +1,98 @@
+2.4.1 / 2022-02-22
+==================
+
+  * Fix error on early async hooks implementations
+
+2.4.0 / 2022-02-21
+==================
+
+  * Prevent loss of async hooks context
+
+2.3.0 / 2015-05-26
+==================
+
+  * Add defined behavior for HTTP `CONNECT` requests
+  * Add defined behavior for HTTP `Upgrade` requests
+  * deps: ee-first@1.1.1
+
+2.2.1 / 2015-04-22
+==================
+
+  * Fix `isFinished(req)` when data buffered
+
+2.2.0 / 2014-12-22
+==================
+
+  * Add message object to callback arguments
+
+2.1.1 / 2014-10-22
+==================
+
+  * Fix handling of pipelined requests
+
+2.1.0 / 2014-08-16
+==================
+
+  * Check if `socket` is detached
+  * Return `undefined` for `isFinished` if state unknown
+
+2.0.0 / 2014-08-16
+==================
+
+  * Add `isFinished` function
+  * Move to `jshttp` organization
+  * Remove support for plain socket argument
+  * Rename to `on-finished`
+  * Support both `req` and `res` as arguments
+  * deps: ee-first@1.0.5
+
+1.2.2 / 2014-06-10
+==================
+
+  * Reduce listeners added to emitters
+    - avoids "event emitter leak" warnings when used multiple times on same request
+
+1.2.1 / 2014-06-08
+==================
+
+  * Fix returned value when already finished
+
+1.2.0 / 2014-06-05
+==================
+
+  * Call callback when called on already-finished socket
+
+1.1.4 / 2014-05-27
+==================
+
+  * Support node.js 0.8
+
+1.1.3 / 2014-04-30
+==================
+
+  * Make sure errors passed as instanceof `Error`
+
+1.1.2 / 2014-04-18
+==================
+
+  * Default the `socket` to passed-in object
+
+1.1.1 / 2014-01-16
+==================
+
+  * Rename module to `finished`
+
+1.1.0 / 2013-12-25
+==================
+
+  * Call callback when called on already-errored socket
+
+1.0.1 / 2013-12-20
+==================
+
+  * Actually pass the error to the callback
+
+1.0.0 / 2013-12-20
+==================
+
+  * Initial release
diff --git a/backend/node_modules/on-finished/LICENSE b/backend/node_modules/on-finished/LICENSE
new file mode 100644
index 0000000..5931fd2
--- /dev/null
+++ b/backend/node_modules/on-finished/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2013 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2014 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/on-finished/README.md b/backend/node_modules/on-finished/README.md
new file mode 100644
index 0000000..8973cde
--- /dev/null
+++ b/backend/node_modules/on-finished/README.md
@@ -0,0 +1,162 @@
+# on-finished
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-image]][node-url]
+[![Build Status][ci-image]][ci-url]
+[![Coverage Status][coveralls-image]][coveralls-url]
+
+Execute a callback when a HTTP request closes, finishes, or errors.
+
+## Install
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install on-finished
+```
+
+## API
+
+```js
+var onFinished = require('on-finished')
+```
+
+### onFinished(res, listener)
+
+Attach a listener to listen for the response to finish. The listener will
+be invoked only once when the response finished. If the response finished
+to an error, the first argument will contain the error. If the response
+has already finished, the listener will be invoked.
+
+Listening to the end of a response would be used to close things associated
+with the response, like open files.
+
+Listener is invoked as `listener(err, res)`.
+
+<!-- eslint-disable handle-callback-err -->
+
+```js
+onFinished(res, function (err, res) {
+  // clean up open fds, etc.
+  // err contains the error if request error'd
+})
+```
+
+### onFinished(req, listener)
+
+Attach a listener to listen for the request to finish. The listener will
+be invoked only once when the request finished. If the request finished
+to an error, the first argument will contain the error. If the request
+has already finished, the listener will be invoked.
+
+Listening to the end of a request would be used to know when to continue
+after reading the data.
+
+Listener is invoked as `listener(err, req)`.
+
+<!-- eslint-disable handle-callback-err -->
+
+```js
+var data = ''
+
+req.setEncoding('utf8')
+req.on('data', function (str) {
+  data += str
+})
+
+onFinished(req, function (err, req) {
+  // data is read unless there is err
+})
+```
+
+### onFinished.isFinished(res)
+
+Determine if `res` is already finished. This would be useful to check and
+not even start certain operations if the response has already finished.
+
+### onFinished.isFinished(req)
+
+Determine if `req` is already finished. This would be useful to check and
+not even start certain operations if the request has already finished.
+
+## Special Node.js requests
+
+### HTTP CONNECT method
+
+The meaning of the `CONNECT` method from RFC 7231, section 4.3.6:
+
+> The CONNECT method requests that the recipient establish a tunnel to
+> the destination origin server identified by the request-target and,
+> if successful, thereafter restrict its behavior to blind forwarding
+> of packets, in both directions, until the tunnel is closed.  Tunnels
+> are commonly used to create an end-to-end virtual connection, through
+> one or more proxies, which can then be secured using TLS (Transport
+> Layer Security, [RFC5246]).
+
+In Node.js, these request objects come from the `'connect'` event on
+the HTTP server.
+
+When this module is used on a HTTP `CONNECT` request, the request is
+considered "finished" immediately, **due to limitations in the Node.js
+interface**. This means if the `CONNECT` request contains a request entity,
+the request will be considered "finished" even before it has been read.
+
+There is no such thing as a response object to a `CONNECT` request in
+Node.js, so there is no support for one.
+
+### HTTP Upgrade request
+
+The meaning of the `Upgrade` header from RFC 7230, section 6.1:
+
+> The "Upgrade" header field is intended to provide a simple mechanism
+> for transitioning from HTTP/1.1 to some other protocol on the same
+> connection.
+
+In Node.js, these request objects come from the `'upgrade'` event on
+the HTTP server.
+
+When this module is used on a HTTP request with an `Upgrade` header, the
+request is considered "finished" immediately, **due to limitations in the
+Node.js interface**. This means if the `Upgrade` request contains a request
+entity, the request will be considered "finished" even before it has been
+read.
+
+There is no such thing as a response object to a `Upgrade` request in
+Node.js, so there is no support for one.
+
+## Example
+
+The following code ensures that file descriptors are always closed
+once the response finishes.
+
+```js
+var destroy = require('destroy')
+var fs = require('fs')
+var http = require('http')
+var onFinished = require('on-finished')
+
+http.createServer(function onRequest (req, res) {
+  var stream = fs.createReadStream('package.json')
+  stream.pipe(res)
+  onFinished(res, function () {
+    destroy(stream)
+  })
+})
+```
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://badgen.net/github/checks/jshttp/on-finished/master?label=ci
+[ci-url]: https://github.com/jshttp/on-finished/actions/workflows/ci.yml
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/on-finished/master
+[coveralls-url]: https://coveralls.io/r/jshttp/on-finished?branch=master
+[node-image]: https://badgen.net/npm/node/on-finished
+[node-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/on-finished
+[npm-url]: https://npmjs.org/package/on-finished
+[npm-version-image]: https://badgen.net/npm/v/on-finished
diff --git a/backend/node_modules/on-finished/index.js b/backend/node_modules/on-finished/index.js
new file mode 100644
index 0000000..e68df7b
--- /dev/null
+++ b/backend/node_modules/on-finished/index.js
@@ -0,0 +1,234 @@
+/*!
+ * on-finished
+ * Copyright(c) 2013 Jonathan Ong
+ * Copyright(c) 2014 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = onFinished
+module.exports.isFinished = isFinished
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var asyncHooks = tryRequireAsyncHooks()
+var first = require('ee-first')
+
+/**
+ * Variables.
+ * @private
+ */
+
+/* istanbul ignore next */
+var defer = typeof setImmediate === 'function'
+  ? setImmediate
+  : function (fn) { process.nextTick(fn.bind.apply(fn, arguments)) }
+
+/**
+ * Invoke callback when the response has finished, useful for
+ * cleaning up resources afterwards.
+ *
+ * @param {object} msg
+ * @param {function} listener
+ * @return {object}
+ * @public
+ */
+
+function onFinished (msg, listener) {
+  if (isFinished(msg) !== false) {
+    defer(listener, null, msg)
+    return msg
+  }
+
+  // attach the listener to the message
+  attachListener(msg, wrap(listener))
+
+  return msg
+}
+
+/**
+ * Determine if message is already finished.
+ *
+ * @param {object} msg
+ * @return {boolean}
+ * @public
+ */
+
+function isFinished (msg) {
+  var socket = msg.socket
+
+  if (typeof msg.finished === 'boolean') {
+    // OutgoingMessage
+    return Boolean(msg.finished || (socket && !socket.writable))
+  }
+
+  if (typeof msg.complete === 'boolean') {
+    // IncomingMessage
+    return Boolean(msg.upgrade || !socket || !socket.readable || (msg.complete && !msg.readable))
+  }
+
+  // don't know
+  return undefined
+}
+
+/**
+ * Attach a finished listener to the message.
+ *
+ * @param {object} msg
+ * @param {function} callback
+ * @private
+ */
+
+function attachFinishedListener (msg, callback) {
+  var eeMsg
+  var eeSocket
+  var finished = false
+
+  function onFinish (error) {
+    eeMsg.cancel()
+    eeSocket.cancel()
+
+    finished = true
+    callback(error)
+  }
+
+  // finished on first message event
+  eeMsg = eeSocket = first([[msg, 'end', 'finish']], onFinish)
+
+  function onSocket (socket) {
+    // remove listener
+    msg.removeListener('socket', onSocket)
+
+    if (finished) return
+    if (eeMsg !== eeSocket) return
+
+    // finished on first socket event
+    eeSocket = first([[socket, 'error', 'close']], onFinish)
+  }
+
+  if (msg.socket) {
+    // socket already assigned
+    onSocket(msg.socket)
+    return
+  }
+
+  // wait for socket to be assigned
+  msg.on('socket', onSocket)
+
+  if (msg.socket === undefined) {
+    // istanbul ignore next: node.js 0.8 patch
+    patchAssignSocket(msg, onSocket)
+  }
+}
+
+/**
+ * Attach the listener to the message.
+ *
+ * @param {object} msg
+ * @return {function}
+ * @private
+ */
+
+function attachListener (msg, listener) {
+  var attached = msg.__onFinished
+
+  // create a private single listener with queue
+  if (!attached || !attached.queue) {
+    attached = msg.__onFinished = createListener(msg)
+    attachFinishedListener(msg, attached)
+  }
+
+  attached.queue.push(listener)
+}
+
+/**
+ * Create listener on message.
+ *
+ * @param {object} msg
+ * @return {function}
+ * @private
+ */
+
+function createListener (msg) {
+  function listener (err) {
+    if (msg.__onFinished === listener) msg.__onFinished = null
+    if (!listener.queue) return
+
+    var queue = listener.queue
+    listener.queue = null
+
+    for (var i = 0; i < queue.length; i++) {
+      queue[i](err, msg)
+    }
+  }
+
+  listener.queue = []
+
+  return listener
+}
+
+/**
+ * Patch ServerResponse.prototype.assignSocket for node.js 0.8.
+ *
+ * @param {ServerResponse} res
+ * @param {function} callback
+ * @private
+ */
+
+// istanbul ignore next: node.js 0.8 patch
+function patchAssignSocket (res, callback) {
+  var assignSocket = res.assignSocket
+
+  if (typeof assignSocket !== 'function') return
+
+  // res.on('socket', callback) is broken in 0.8
+  res.assignSocket = function _assignSocket (socket) {
+    assignSocket.call(this, socket)
+    callback(socket)
+  }
+}
+
+/**
+ * Try to require async_hooks
+ * @private
+ */
+
+function tryRequireAsyncHooks () {
+  try {
+    return require('async_hooks')
+  } catch (e) {
+    return {}
+  }
+}
+
+/**
+ * Wrap function with async resource, if possible.
+ * AsyncResource.bind static method backported.
+ * @private
+ */
+
+function wrap (fn) {
+  var res
+
+  // create anonymous resource
+  if (asyncHooks.AsyncResource) {
+    res = new asyncHooks.AsyncResource(fn.name || 'bound-anonymous-fn')
+  }
+
+  // incompatible node.js
+  if (!res || !res.runInAsyncScope) {
+    return fn
+  }
+
+  // return bound function
+  return res.runInAsyncScope.bind(res, fn, null)
+}
diff --git a/backend/node_modules/on-finished/package.json b/backend/node_modules/on-finished/package.json
new file mode 100644
index 0000000..644cd81
--- /dev/null
+++ b/backend/node_modules/on-finished/package.json
@@ -0,0 +1,39 @@
+{
+  "name": "on-finished",
+  "description": "Execute a callback when a request closes, finishes, or errors",
+  "version": "2.4.1",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)"
+  ],
+  "license": "MIT",
+  "repository": "jshttp/on-finished",
+  "dependencies": {
+    "ee-first": "1.1.1"
+  },
+  "devDependencies": {
+    "eslint": "7.32.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.25.4",
+    "eslint-plugin-markdown": "2.2.1",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "5.2.0",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "9.2.1",
+    "nyc": "15.1.0"
+  },
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "index.js"
+  ],
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-ci": "nyc --reporter=lcovonly --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
+  }
+}
diff --git a/backend/node_modules/parseurl/HISTORY.md b/backend/node_modules/parseurl/HISTORY.md
new file mode 100644
index 0000000..8e40954
--- /dev/null
+++ b/backend/node_modules/parseurl/HISTORY.md
@@ -0,0 +1,58 @@
+1.3.3 / 2019-04-15
+==================
+
+  * Fix Node.js 0.8 return value inconsistencies
+
+1.3.2 / 2017-09-09
+==================
+
+  * perf: reduce overhead for full URLs
+  * perf: unroll the "fast-path" `RegExp`
+
+1.3.1 / 2016-01-17
+==================
+
+  * perf: enable strict mode
+
+1.3.0 / 2014-08-09
+==================
+
+  * Add `parseurl.original` for parsing `req.originalUrl` with fallback
+  * Return `undefined` if `req.url` is `undefined`
+
+1.2.0 / 2014-07-21
+==================
+
+  * Cache URLs based on original value
+  * Remove no-longer-needed URL mis-parse work-around
+  * Simplify the "fast-path" `RegExp`
+
+1.1.3 / 2014-07-08
+==================
+
+  * Fix typo
+
+1.1.2 / 2014-07-08
+==================
+
+  * Seriously fix Node.js 0.8 compatibility
+
+1.1.1 / 2014-07-08
+==================
+
+  * Fix Node.js 0.8 compatibility
+
+1.1.0 / 2014-07-08
+==================
+
+  * Incorporate URL href-only parse fast-path
+
+1.0.1 / 2014-03-08
+==================
+
+  * Add missing `require`
+
+1.0.0 / 2014-03-08
+==================
+
+  * Genesis from `connect`
diff --git a/backend/node_modules/parseurl/LICENSE b/backend/node_modules/parseurl/LICENSE
new file mode 100644
index 0000000..27653d3
--- /dev/null
+++ b/backend/node_modules/parseurl/LICENSE
@@ -0,0 +1,24 @@
+
+(The MIT License)
+
+Copyright (c) 2014 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2014-2017 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/parseurl/README.md b/backend/node_modules/parseurl/README.md
new file mode 100644
index 0000000..443e716
--- /dev/null
+++ b/backend/node_modules/parseurl/README.md
@@ -0,0 +1,133 @@
+# parseurl
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-image]][node-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Parse a URL with memoization.
+
+## Install
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install parseurl
+```
+
+## API
+
+```js
+var parseurl = require('parseurl')
+```
+
+### parseurl(req)
+
+Parse the URL of the given request object (looks at the `req.url` property)
+and return the result. The result is the same as `url.parse` in Node.js core.
+Calling this function multiple times on the same `req` where `req.url` does
+not change will return a cached parsed object, rather than parsing again.
+
+### parseurl.original(req)
+
+Parse the original URL of the given request object and return the result.
+This works by trying to parse `req.originalUrl` if it is a string, otherwise
+parses `req.url`. The result is the same as `url.parse` in Node.js core.
+Calling this function multiple times on the same `req` where `req.originalUrl`
+does not change will return a cached parsed object, rather than parsing again.
+
+## Benchmark
+
+```bash
+$ npm run-script bench
+
+> parseurl@1.3.3 bench nodejs-parseurl
+> node benchmark/index.js
+
+  http_parser@2.8.0
+  node@10.6.0
+  v8@6.7.288.46-node.13
+  uv@1.21.0
+  zlib@1.2.11
+  ares@1.14.0
+  modules@64
+  nghttp2@1.32.0
+  napi@3
+  openssl@1.1.0h
+  icu@61.1
+  unicode@10.0
+  cldr@33.0
+  tz@2018c
+
+> node benchmark/fullurl.js
+
+  Parsing URL "http://localhost:8888/foo/bar?user=tj&pet=fluffy"
+
+  4 tests completed.
+
+  fasturl            x 2,207,842 ops/sec ±3.76% (184 runs sampled)
+  nativeurl - legacy x   507,180 ops/sec ±0.82% (191 runs sampled)
+  nativeurl - whatwg x   290,044 ops/sec ±1.96% (189 runs sampled)
+  parseurl           x   488,907 ops/sec ±2.13% (192 runs sampled)
+
+> node benchmark/pathquery.js
+
+  Parsing URL "/foo/bar?user=tj&pet=fluffy"
+
+  4 tests completed.
+
+  fasturl            x 3,812,564 ops/sec ±3.15% (188 runs sampled)
+  nativeurl - legacy x 2,651,631 ops/sec ±1.68% (189 runs sampled)
+  nativeurl - whatwg x   161,837 ops/sec ±2.26% (189 runs sampled)
+  parseurl           x 4,166,338 ops/sec ±2.23% (184 runs sampled)
+
+> node benchmark/samerequest.js
+
+  Parsing URL "/foo/bar?user=tj&pet=fluffy" on same request object
+
+  4 tests completed.
+
+  fasturl            x  3,821,651 ops/sec ±2.42% (185 runs sampled)
+  nativeurl - legacy x  2,651,162 ops/sec ±1.90% (187 runs sampled)
+  nativeurl - whatwg x    175,166 ops/sec ±1.44% (188 runs sampled)
+  parseurl           x 14,912,606 ops/sec ±3.59% (183 runs sampled)
+
+> node benchmark/simplepath.js
+
+  Parsing URL "/foo/bar"
+
+  4 tests completed.
+
+  fasturl            x 12,421,765 ops/sec ±2.04% (191 runs sampled)
+  nativeurl - legacy x  7,546,036 ops/sec ±1.41% (188 runs sampled)
+  nativeurl - whatwg x    198,843 ops/sec ±1.83% (189 runs sampled)
+  parseurl           x 24,244,006 ops/sec ±0.51% (194 runs sampled)
+
+> node benchmark/slash.js
+
+  Parsing URL "/"
+
+  4 tests completed.
+
+  fasturl            x 17,159,456 ops/sec ±3.25% (188 runs sampled)
+  nativeurl - legacy x 11,635,097 ops/sec ±3.79% (184 runs sampled)
+  nativeurl - whatwg x    240,693 ops/sec ±0.83% (189 runs sampled)
+  parseurl           x 42,279,067 ops/sec ±0.55% (190 runs sampled)
+```
+
+## License
+
+  [MIT](LICENSE)
+
+[coveralls-image]: https://badgen.net/coveralls/c/github/pillarjs/parseurl/master
+[coveralls-url]: https://coveralls.io/r/pillarjs/parseurl?branch=master
+[node-image]: https://badgen.net/npm/node/parseurl
+[node-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/parseurl
+[npm-url]: https://npmjs.org/package/parseurl
+[npm-version-image]: https://badgen.net/npm/v/parseurl
+[travis-image]: https://badgen.net/travis/pillarjs/parseurl/master
+[travis-url]: https://travis-ci.org/pillarjs/parseurl
diff --git a/backend/node_modules/parseurl/index.js b/backend/node_modules/parseurl/index.js
new file mode 100644
index 0000000..ece7223
--- /dev/null
+++ b/backend/node_modules/parseurl/index.js
@@ -0,0 +1,158 @@
+/*!
+ * parseurl
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2014-2017 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var url = require('url')
+var parse = url.parse
+var Url = url.Url
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = parseurl
+module.exports.original = originalurl
+
+/**
+ * Parse the `req` url with memoization.
+ *
+ * @param {ServerRequest} req
+ * @return {Object}
+ * @public
+ */
+
+function parseurl (req) {
+  var url = req.url
+
+  if (url === undefined) {
+    // URL is undefined
+    return undefined
+  }
+
+  var parsed = req._parsedUrl
+
+  if (fresh(url, parsed)) {
+    // Return cached URL parse
+    return parsed
+  }
+
+  // Parse the URL
+  parsed = fastparse(url)
+  parsed._raw = url
+
+  return (req._parsedUrl = parsed)
+};
+
+/**
+ * Parse the `req` original url with fallback and memoization.
+ *
+ * @param {ServerRequest} req
+ * @return {Object}
+ * @public
+ */
+
+function originalurl (req) {
+  var url = req.originalUrl
+
+  if (typeof url !== 'string') {
+    // Fallback
+    return parseurl(req)
+  }
+
+  var parsed = req._parsedOriginalUrl
+
+  if (fresh(url, parsed)) {
+    // Return cached URL parse
+    return parsed
+  }
+
+  // Parse the URL
+  parsed = fastparse(url)
+  parsed._raw = url
+
+  return (req._parsedOriginalUrl = parsed)
+};
+
+/**
+ * Parse the `str` url with fast-path short-cut.
+ *
+ * @param {string} str
+ * @return {Object}
+ * @private
+ */
+
+function fastparse (str) {
+  if (typeof str !== 'string' || str.charCodeAt(0) !== 0x2f /* / */) {
+    return parse(str)
+  }
+
+  var pathname = str
+  var query = null
+  var search = null
+
+  // This takes the regexp from https://github.com/joyent/node/pull/7878
+  // Which is /^(\/[^?#\s]*)(\?[^#\s]*)?$/
+  // And unrolls it into a for loop
+  for (var i = 1; i < str.length; i++) {
+    switch (str.charCodeAt(i)) {
+      case 0x3f: /* ?  */
+        if (search === null) {
+          pathname = str.substring(0, i)
+          query = str.substring(i + 1)
+          search = str.substring(i)
+        }
+        break
+      case 0x09: /* \t */
+      case 0x0a: /* \n */
+      case 0x0c: /* \f */
+      case 0x0d: /* \r */
+      case 0x20: /*    */
+      case 0x23: /* #  */
+      case 0xa0:
+      case 0xfeff:
+        return parse(str)
+    }
+  }
+
+  var url = Url !== undefined
+    ? new Url()
+    : {}
+
+  url.path = str
+  url.href = str
+  url.pathname = pathname
+
+  if (search !== null) {
+    url.query = query
+    url.search = search
+  }
+
+  return url
+}
+
+/**
+ * Determine if parsed is still fresh for url.
+ *
+ * @param {string} url
+ * @param {object} parsedUrl
+ * @return {boolean}
+ * @private
+ */
+
+function fresh (url, parsedUrl) {
+  return typeof parsedUrl === 'object' &&
+    parsedUrl !== null &&
+    (Url === undefined || parsedUrl instanceof Url) &&
+    parsedUrl._raw === url
+}
diff --git a/backend/node_modules/parseurl/package.json b/backend/node_modules/parseurl/package.json
new file mode 100644
index 0000000..6b443ca
--- /dev/null
+++ b/backend/node_modules/parseurl/package.json
@@ -0,0 +1,40 @@
+{
+  "name": "parseurl",
+  "description": "parse a url with memoization",
+  "version": "1.3.3",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)"
+  ],
+  "repository": "pillarjs/parseurl",
+  "license": "MIT",
+  "devDependencies": {
+    "beautify-benchmark": "0.2.4",
+    "benchmark": "2.1.4",
+    "eslint": "5.16.0",
+    "eslint-config-standard": "12.0.0",
+    "eslint-plugin-import": "2.17.1",
+    "eslint-plugin-node": "7.0.1",
+    "eslint-plugin-promise": "4.1.1",
+    "eslint-plugin-standard": "4.0.0",
+    "fast-url-parser": "1.1.3",
+    "istanbul": "0.4.5",
+    "mocha": "6.1.3"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "README.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "bench": "node benchmark/index.js",
+    "lint": "eslint .",
+    "test": "mocha --check-leaks --bail --reporter spec test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --check-leaks --reporter dot test/",
+    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --check-leaks --reporter spec test/"
+  }
+}
diff --git a/backend/node_modules/path-to-regexp/LICENSE b/backend/node_modules/path-to-regexp/LICENSE
new file mode 100644
index 0000000..983fbe8
--- /dev/null
+++ b/backend/node_modules/path-to-regexp/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Blake Embrey (hello@blakeembrey.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/path-to-regexp/Readme.md b/backend/node_modules/path-to-regexp/Readme.md
new file mode 100644
index 0000000..95452a6
--- /dev/null
+++ b/backend/node_modules/path-to-regexp/Readme.md
@@ -0,0 +1,35 @@
+# Path-to-RegExp
+
+Turn an Express-style path string such as `/user/:name` into a regular expression.
+
+**Note:** This is a legacy branch. You should upgrade to `1.x`.
+
+## Usage
+
+```javascript
+var pathToRegexp = require('path-to-regexp');
+```
+
+### pathToRegexp(path, keys, options)
+
+ - **path** A string in the express format, an array of such strings, or a regular expression
+ - **keys** An array to be populated with the keys present in the url.  Once the function completes, this will be an array of strings.
+ - **options**
+   - **options.sensitive** Defaults to false, set this to true to make routes case sensitive
+   - **options.strict** Defaults to false, set this to true to make the trailing slash matter.
+   - **options.end** Defaults to true, set this to false to only match the prefix of the URL.
+
+```javascript
+var keys = [];
+var exp = pathToRegexp('/foo/:bar', keys);
+//keys = ['bar']
+//exp = /^\/foo\/(?:([^\/]+?))\/?$/i
+```
+
+## Live Demo
+
+You can see a live demo of this library in use at [express-route-tester](http://forbeslindesay.github.com/express-route-tester/).
+
+## License
+
+  MIT
diff --git a/backend/node_modules/path-to-regexp/index.js b/backend/node_modules/path-to-regexp/index.js
new file mode 100644
index 0000000..95d2f4b
--- /dev/null
+++ b/backend/node_modules/path-to-regexp/index.js
@@ -0,0 +1,156 @@
+/**
+ * Expose `pathToRegexp`.
+ */
+
+module.exports = pathToRegexp;
+
+/**
+ * Match matching groups in a regular expression.
+ */
+var MATCHING_GROUP_REGEXP = /\\.|\((?:\?<(.*?)>)?(?!\?)/g;
+
+/**
+ * Normalize the given path string,
+ * returning a regular expression.
+ *
+ * An empty array should be passed,
+ * which will contain the placeholder
+ * key names. For example "/user/:id" will
+ * then contain ["id"].
+ *
+ * @param  {String|RegExp|Array} path
+ * @param  {Array} keys
+ * @param  {Object} options
+ * @return {RegExp}
+ * @api private
+ */
+
+function pathToRegexp(path, keys, options) {
+  options = options || {};
+  keys = keys || [];
+  var strict = options.strict;
+  var end = options.end !== false;
+  var flags = options.sensitive ? '' : 'i';
+  var lookahead = options.lookahead !== false;
+  var extraOffset = 0;
+  var keysOffset = keys.length;
+  var i = 0;
+  var name = 0;
+  var pos = 0;
+  var backtrack = '';
+  var m;
+
+  if (path instanceof RegExp) {
+    while (m = MATCHING_GROUP_REGEXP.exec(path.source)) {
+      if (m[0][0] === '\\') continue;
+
+      keys.push({
+        name: m[1] || name++,
+        optional: false,
+        offset: m.index
+      });
+    }
+
+    return path;
+  }
+
+  if (Array.isArray(path)) {
+    // Map array parts into regexps and return their source. We also pass
+    // the same keys and options instance into every generation to get
+    // consistent matching groups before we join the sources together.
+    path = path.map(function (value) {
+      return pathToRegexp(value, keys, options).source;
+    });
+
+    return new RegExp(path.join('|'), flags);
+  }
+
+  if (typeof path !== 'string') {
+    throw new TypeError('path must be a string, array of strings, or regular expression');
+  }
+
+  path = path.replace(
+    /\\.|(\/)?(\.)?:(\w+)(\(.*?\))?(\*)?(\?)?|[.*]|\/\(/g,
+    function (match, slash, format, key, capture, star, optional, offset) {
+      if (match[0] === '\\') {
+        backtrack += match;
+        pos += 2;
+        return match;
+      }
+
+      if (match === '.') {
+        backtrack += '\\.';
+        extraOffset += 1;
+        pos += 1;
+        return '\\.';
+      }
+
+      if (slash || format) {
+        backtrack = '';
+      } else {
+        backtrack += path.slice(pos, offset);
+      }
+
+      pos = offset + match.length;
+
+      if (match === '*') {
+        extraOffset += 3;
+        return '(.*)';
+      }
+
+      if (match === '/(') {
+        backtrack += '/';
+        extraOffset += 2;
+        return '/(?:';
+      }
+
+      slash = slash || '';
+      format = format ? '\\.' : '';
+      optional = optional || '';
+      capture = capture ?
+        capture.replace(/\\.|\*/, function (m) { return m === '*' ? '(.*)' : m; }) :
+        (backtrack ? '((?:(?!/|' + backtrack + ').)+?)' : '([^/' + format + ']+?)');
+
+      keys.push({
+        name: key,
+        optional: !!optional,
+        offset: offset + extraOffset
+      });
+
+      var result = '(?:'
+        + format + slash + capture
+        + (star ? '((?:[/' + format + '].+?)?)' : '')
+        + ')'
+        + optional;
+
+      extraOffset += result.length - match.length;
+
+      return result;
+    });
+
+  // This is a workaround for handling unnamed matching groups.
+  while (m = MATCHING_GROUP_REGEXP.exec(path)) {
+    if (m[0][0] === '\\') continue;
+
+    if (keysOffset + i === keys.length || keys[keysOffset + i].offset > m.index) {
+      keys.splice(keysOffset + i, 0, {
+        name: name++, // Unnamed matching groups must be consistently linear.
+        optional: false,
+        offset: m.index
+      });
+    }
+
+    i++;
+  }
+
+  path += strict ? '' : path[path.length - 1] === '/' ? '?' : '/?';
+
+  // If the path is non-ending, match until the end or a slash.
+  if (end) {
+    path += '$';
+  } else if (path[path.length - 1] !== '/') {
+    path += lookahead ? '(?=/|$)' : '(?:/|$)';
+  }
+
+  return new RegExp('^' + path, flags);
+};
diff --git a/backend/node_modules/path-to-regexp/package.json b/backend/node_modules/path-to-regexp/package.json
new file mode 100644
index 0000000..23b4b6a
--- /dev/null
+++ b/backend/node_modules/path-to-regexp/package.json
@@ -0,0 +1,30 @@
+{
+  "name": "path-to-regexp",
+  "description": "Express style path to RegExp utility",
+  "version": "0.1.12",
+  "files": [
+    "index.js",
+    "LICENSE"
+  ],
+  "scripts": {
+    "test": "istanbul cover _mocha -- -R spec"
+  },
+  "keywords": [
+    "express",
+    "regexp"
+  ],
+  "component": {
+    "scripts": {
+      "path-to-regexp": "index.js"
+    }
+  },
+  "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/pillarjs/path-to-regexp.git"
+  },
+  "devDependencies": {
+    "mocha": "^1.17.1",
+    "istanbul": "^0.2.6"
+  }
+}
diff --git a/backend/node_modules/process-nextick-args/index.js b/backend/node_modules/process-nextick-args/index.js
new file mode 100644
index 0000000..3eecf11
--- /dev/null
+++ b/backend/node_modules/process-nextick-args/index.js
@@ -0,0 +1,45 @@
+'use strict';
+
+if (typeof process === 'undefined' ||
+    !process.version ||
+    process.version.indexOf('v0.') === 0 ||
+    process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) {
+  module.exports = { nextTick: nextTick };
+} else {
+  module.exports = process
+}
+
+function nextTick(fn, arg1, arg2, arg3) {
+  if (typeof fn !== 'function') {
+    throw new TypeError('"callback" argument must be a function');
+  }
+  var len = arguments.length;
+  var args, i;
+  switch (len) {
+  case 0:
+  case 1:
+    return process.nextTick(fn);
+  case 2:
+    return process.nextTick(function afterTickOne() {
+      fn.call(null, arg1);
+    });
+  case 3:
+    return process.nextTick(function afterTickTwo() {
+      fn.call(null, arg1, arg2);
+    });
+  case 4:
+    return process.nextTick(function afterTickThree() {
+      fn.call(null, arg1, arg2, arg3);
+    });
+  default:
+    args = new Array(len - 1);
+    i = 0;
+    while (i < args.length) {
+      args[i++] = arguments[i];
+    }
+    return process.nextTick(function afterTick() {
+      fn.apply(null, args);
+    });
+  }
+}
+
diff --git a/backend/node_modules/process-nextick-args/license.md b/backend/node_modules/process-nextick-args/license.md
new file mode 100644
index 0000000..c67e353
--- /dev/null
+++ b/backend/node_modules/process-nextick-args/license.md
@@ -0,0 +1,19 @@
+# Copyright (c) 2015 Calvin Metcalf
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+**THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.**
diff --git a/backend/node_modules/process-nextick-args/package.json b/backend/node_modules/process-nextick-args/package.json
new file mode 100644
index 0000000..6070b72
--- /dev/null
+++ b/backend/node_modules/process-nextick-args/package.json
@@ -0,0 +1,25 @@
+{
+  "name": "process-nextick-args",
+  "version": "2.0.1",
+  "description": "process.nextTick but always with args",
+  "main": "index.js",
+  "files": [
+    "index.js"
+  ],
+  "scripts": {
+    "test": "node test.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/calvinmetcalf/process-nextick-args.git"
+  },
+  "author": "",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/calvinmetcalf/process-nextick-args/issues"
+  },
+  "homepage": "https://github.com/calvinmetcalf/process-nextick-args",
+  "devDependencies": {
+    "tap": "~0.2.6"
+  }
+}
diff --git a/backend/node_modules/process-nextick-args/readme.md b/backend/node_modules/process-nextick-args/readme.md
new file mode 100644
index 0000000..ecb432c
--- /dev/null
+++ b/backend/node_modules/process-nextick-args/readme.md
@@ -0,0 +1,18 @@
+process-nextick-args
+=====
+
+[![Build Status](https://travis-ci.org/calvinmetcalf/process-nextick-args.svg?branch=master)](https://travis-ci.org/calvinmetcalf/process-nextick-args)
+
+```bash
+npm install --save process-nextick-args
+```
+
+Always be able to pass arguments to process.nextTick, no matter the platform
+
+```js
+var pna = require('process-nextick-args');
+
+pna.nextTick(function (a, b, c) {
+  console.log(a, b, c);
+}, 'step', 3,  'profit');
+```
diff --git a/backend/node_modules/proxy-addr/HISTORY.md b/backend/node_modules/proxy-addr/HISTORY.md
new file mode 100644
index 0000000..8480242
--- /dev/null
+++ b/backend/node_modules/proxy-addr/HISTORY.md
@@ -0,0 +1,161 @@
+2.0.7 / 2021-05-31
+==================
+
+  * deps: forwarded@0.2.0
+    - Use `req.socket` over deprecated `req.connection`
+
+2.0.6 / 2020-02-24
+==================
+
+  * deps: ipaddr.js@1.9.1
+
+2.0.5 / 2019-04-16
+==================
+
+  * deps: ipaddr.js@1.9.0
+
+2.0.4 / 2018-07-26
+==================
+
+  * deps: ipaddr.js@1.8.0
+
+2.0.3 / 2018-02-19
+==================
+
+  * deps: ipaddr.js@1.6.0
+
+2.0.2 / 2017-09-24
+==================
+
+  * deps: forwarded@~0.1.2
+    - perf: improve header parsing
+    - perf: reduce overhead when no `X-Forwarded-For` header
+
+2.0.1 / 2017-09-10
+==================
+
+  * deps: forwarded@~0.1.1
+    - Fix trimming leading / trailing OWS
+    - perf: hoist regular expression
+  * deps: ipaddr.js@1.5.2
+
+2.0.0 / 2017-08-08
+==================
+
+  * Drop support for Node.js below 0.10
+
+1.1.5 / 2017-07-25
+==================
+
+  * Fix array argument being altered
+  * deps: ipaddr.js@1.4.0
+
+1.1.4 / 2017-03-24
+==================
+
+  * deps: ipaddr.js@1.3.0
+
+1.1.3 / 2017-01-14
+==================
+
+  * deps: ipaddr.js@1.2.0
+
+1.1.2 / 2016-05-29
+==================
+
+  * deps: ipaddr.js@1.1.1
+    - Fix IPv6-mapped IPv4 validation edge cases
+
+1.1.1 / 2016-05-03
+==================
+
+  * Fix regression matching mixed versions against multiple subnets
+
+1.1.0 / 2016-05-01
+==================
+
+  * Fix accepting various invalid netmasks
+    - IPv4 netmasks must be contingous
+    - IPv6 addresses cannot be used as a netmask
+  * deps: ipaddr.js@1.1.0
+
+1.0.10 / 2015-12-09
+===================
+
+  * deps: ipaddr.js@1.0.5
+    - Fix regression in `isValid` with non-string arguments
+
+1.0.9 / 2015-12-01
+==================
+
+  * deps: ipaddr.js@1.0.4
+    - Fix accepting some invalid IPv6 addresses
+    - Reject CIDRs with negative or overlong masks
+  * perf: enable strict mode
+
+1.0.8 / 2015-05-10
+==================
+
+  * deps: ipaddr.js@1.0.1
+
+1.0.7 / 2015-03-16
+==================
+
+  * deps: ipaddr.js@0.1.9
+    - Fix OOM on certain inputs to `isValid`
+
+1.0.6 / 2015-02-01
+==================
+
+  * deps: ipaddr.js@0.1.8
+
+1.0.5 / 2015-01-08
+==================
+
+  * deps: ipaddr.js@0.1.6
+
+1.0.4 / 2014-11-23
+==================
+
+  * deps: ipaddr.js@0.1.5
+    - Fix edge cases with `isValid`
+
+1.0.3 / 2014-09-21
+==================
+
+  * Use `forwarded` npm module
+
+1.0.2 / 2014-09-18
+==================
+
+  * Fix a global leak when multiple subnets are trusted
+  * Support Node.js 0.6
+  * deps: ipaddr.js@0.1.3
+
+1.0.1 / 2014-06-03
+==================
+
+  * Fix links in npm package
+
+1.0.0 / 2014-05-08
+==================
+
+  * Add `trust` argument to determine proxy trust on
+    * Accepts custom function
+    * Accepts IPv4/IPv6 address(es)
+    * Accepts subnets
+    * Accepts pre-defined names
+  * Add optional `trust` argument to `proxyaddr.all` to
+    stop at first untrusted
+  * Add `proxyaddr.compile` to pre-compile `trust` function
+    to make subsequent calls faster
+
+0.0.1 / 2014-05-04
+==================
+
+  * Fix bad npm publish
+
+0.0.0 / 2014-05-04
+==================
+
+  * Initial release
diff --git a/backend/node_modules/proxy-addr/LICENSE b/backend/node_modules/proxy-addr/LICENSE
new file mode 100644
index 0000000..cab251c
--- /dev/null
+++ b/backend/node_modules/proxy-addr/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2014-2016 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/proxy-addr/README.md b/backend/node_modules/proxy-addr/README.md
new file mode 100644
index 0000000..69c0b63
--- /dev/null
+++ b/backend/node_modules/proxy-addr/README.md
@@ -0,0 +1,139 @@
+# proxy-addr
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-image]][node-url]
+[![Build Status][ci-image]][ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Determine address of proxied request
+
+## Install
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install proxy-addr
+```
+
+## API
+
+```js
+var proxyaddr = require('proxy-addr')
+```
+
+### proxyaddr(req, trust)
+
+Return the address of the request, using the given `trust` parameter.
+
+The `trust` argument is a function that returns `true` if you trust
+the address, `false` if you don't. The closest untrusted address is
+returned.
+
+```js
+proxyaddr(req, function (addr) { return addr === '127.0.0.1' })
+proxyaddr(req, function (addr, i) { return i < 1 })
+```
+
+The `trust` arugment may also be a single IP address string or an
+array of trusted addresses, as plain IP addresses, CIDR-formatted
+strings, or IP/netmask strings.
+
+```js
+proxyaddr(req, '127.0.0.1')
+proxyaddr(req, ['127.0.0.0/8', '10.0.0.0/8'])
+proxyaddr(req, ['127.0.0.0/255.0.0.0', '192.168.0.0/255.255.0.0'])
+```
+
+This module also supports IPv6. Your IPv6 addresses will be normalized
+automatically (i.e. `fe80::00ed:1` equals `fe80:0:0:0:0:0:ed:1`).
+
+```js
+proxyaddr(req, '::1')
+proxyaddr(req, ['::1/128', 'fe80::/10'])
+```
+
+This module will automatically work with IPv4-mapped IPv6 addresses
+as well to support node.js in IPv6-only mode. This means that you do
+not have to specify both `::ffff:a00:1` and `10.0.0.1`.
+
+As a convenience, this module also takes certain pre-defined names
+in addition to IP addresses, which expand into IP addresses:
+
+```js
+proxyaddr(req, 'loopback')
+proxyaddr(req, ['loopback', 'fc00:ac:1ab5:fff::1/64'])
+```
+
+  * `loopback`: IPv4 and IPv6 loopback addresses (like `::1` and
+    `127.0.0.1`).
+  * `linklocal`: IPv4 and IPv6 link-local addresses (like
+    `fe80::1:1:1:1` and `169.254.0.1`).
+  * `uniquelocal`: IPv4 private addresses and IPv6 unique-local
+    addresses (like `fc00:ac:1ab5:fff::1` and `192.168.0.1`).
+
+When `trust` is specified as a function, it will be called for each
+address to determine if it is a trusted address. The function is
+given two arguments: `addr` and `i`, where `addr` is a string of
+the address to check and `i` is a number that represents the distance
+from the socket address.
+
+### proxyaddr.all(req, [trust])
+
+Return all the addresses of the request, optionally stopping at the
+first untrusted. This array is ordered from closest to furthest
+(i.e. `arr[0] === req.connection.remoteAddress`).
+
+```js
+proxyaddr.all(req)
+```
+
+The optional `trust` argument takes the same arguments as `trust`
+does in `proxyaddr(req, trust)`.
+
+```js
+proxyaddr.all(req, 'loopback')
+```
+
+### proxyaddr.compile(val)
+
+Compiles argument `val` into a `trust` function. This function takes
+the same arguments as `trust` does in `proxyaddr(req, trust)` and
+returns a function suitable for `proxyaddr(req, trust)`.
+
+```js
+var trust = proxyaddr.compile('loopback')
+var addr = proxyaddr(req, trust)
+```
+
+This function is meant to be optimized for use against every request.
+It is recommend to compile a trust function up-front for the trusted
+configuration and pass that to `proxyaddr(req, trust)` for each request.
+
+## Testing
+
+```sh
+$ npm test
+```
+
+## Benchmarks
+
+```sh
+$ npm run-script bench
+```
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://badgen.net/github/checks/jshttp/proxy-addr/master?label=ci
+[ci-url]: https://github.com/jshttp/proxy-addr/actions?query=workflow%3Aci
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/proxy-addr/master
+[coveralls-url]: https://coveralls.io/r/jshttp/proxy-addr?branch=master
+[node-image]: https://badgen.net/npm/node/proxy-addr
+[node-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/proxy-addr
+[npm-url]: https://npmjs.org/package/proxy-addr
+[npm-version-image]: https://badgen.net/npm/v/proxy-addr
diff --git a/backend/node_modules/proxy-addr/index.js b/backend/node_modules/proxy-addr/index.js
new file mode 100644
index 0000000..a909b05
--- /dev/null
+++ b/backend/node_modules/proxy-addr/index.js
@@ -0,0 +1,327 @@
+/*!
+ * proxy-addr
+ * Copyright(c) 2014-2016 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = proxyaddr
+module.exports.all = alladdrs
+module.exports.compile = compile
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var forwarded = require('forwarded')
+var ipaddr = require('ipaddr.js')
+
+/**
+ * Variables.
+ * @private
+ */
+
+var DIGIT_REGEXP = /^[0-9]+$/
+var isip = ipaddr.isValid
+var parseip = ipaddr.parse
+
+/**
+ * Pre-defined IP ranges.
+ * @private
+ */
+
+var IP_RANGES = {
+  linklocal: ['169.254.0.0/16', 'fe80::/10'],
+  loopback: ['127.0.0.1/8', '::1/128'],
+  uniquelocal: ['10.0.0.0/8', '172.16.0.0/12', '192.168.0.0/16', 'fc00::/7']
+}
+
+/**
+ * Get all addresses in the request, optionally stopping
+ * at the first untrusted.
+ *
+ * @param {Object} request
+ * @param {Function|Array|String} [trust]
+ * @public
+ */
+
+function alladdrs (req, trust) {
+  // get addresses
+  var addrs = forwarded(req)
+
+  if (!trust) {
+    // Return all addresses
+    return addrs
+  }
+
+  if (typeof trust !== 'function') {
+    trust = compile(trust)
+  }
+
+  for (var i = 0; i < addrs.length - 1; i++) {
+    if (trust(addrs[i], i)) continue
+
+    addrs.length = i + 1
+  }
+
+  return addrs
+}
+
+/**
+ * Compile argument into trust function.
+ *
+ * @param {Array|String} val
+ * @private
+ */
+
+function compile (val) {
+  if (!val) {
+    throw new TypeError('argument is required')
+  }
+
+  var trust
+
+  if (typeof val === 'string') {
+    trust = [val]
+  } else if (Array.isArray(val)) {
+    trust = val.slice()
+  } else {
+    throw new TypeError('unsupported trust argument')
+  }
+
+  for (var i = 0; i < trust.length; i++) {
+    val = trust[i]
+
+    if (!Object.prototype.hasOwnProperty.call(IP_RANGES, val)) {
+      continue
+    }
+
+    // Splice in pre-defined range
+    val = IP_RANGES[val]
+    trust.splice.apply(trust, [i, 1].concat(val))
+    i += val.length - 1
+  }
+
+  return compileTrust(compileRangeSubnets(trust))
+}
+
+/**
+ * Compile `arr` elements into range subnets.
+ *
+ * @param {Array} arr
+ * @private
+ */
+
+function compileRangeSubnets (arr) {
+  var rangeSubnets = new Array(arr.length)
+
+  for (var i = 0; i < arr.length; i++) {
+    rangeSubnets[i] = parseipNotation(arr[i])
+  }
+
+  return rangeSubnets
+}
+
+/**
+ * Compile range subnet array into trust function.
+ *
+ * @param {Array} rangeSubnets
+ * @private
+ */
+
+function compileTrust (rangeSubnets) {
+  // Return optimized function based on length
+  var len = rangeSubnets.length
+  return len === 0
+    ? trustNone
+    : len === 1
+      ? trustSingle(rangeSubnets[0])
+      : trustMulti(rangeSubnets)
+}
+
+/**
+ * Parse IP notation string into range subnet.
+ *
+ * @param {String} note
+ * @private
+ */
+
+function parseipNotation (note) {
+  var pos = note.lastIndexOf('/')
+  var str = pos !== -1
+    ? note.substring(0, pos)
+    : note
+
+  if (!isip(str)) {
+    throw new TypeError('invalid IP address: ' + str)
+  }
+
+  var ip = parseip(str)
+
+  if (pos === -1 && ip.kind() === 'ipv6' && ip.isIPv4MappedAddress()) {
+    // Store as IPv4
+    ip = ip.toIPv4Address()
+  }
+
+  var max = ip.kind() === 'ipv6'
+    ? 128
+    : 32
+
+  var range = pos !== -1
+    ? note.substring(pos + 1, note.length)
+    : null
+
+  if (range === null) {
+    range = max
+  } else if (DIGIT_REGEXP.test(range)) {
+    range = parseInt(range, 10)
+  } else if (ip.kind() === 'ipv4' && isip(range)) {
+    range = parseNetmask(range)
+  } else {
+    range = null
+  }
+
+  if (range <= 0 || range > max) {
+    throw new TypeError('invalid range on address: ' + note)
+  }
+
+  return [ip, range]
+}
+
+/**
+ * Parse netmask string into CIDR range.
+ *
+ * @param {String} netmask
+ * @private
+ */
+
+function parseNetmask (netmask) {
+  var ip = parseip(netmask)
+  var kind = ip.kind()
+
+  return kind === 'ipv4'
+    ? ip.prefixLengthFromSubnetMask()
+    : null
+}
+
+/**
+ * Determine address of proxied request.
+ *
+ * @param {Object} request
+ * @param {Function|Array|String} trust
+ * @public
+ */
+
+function proxyaddr (req, trust) {
+  if (!req) {
+    throw new TypeError('req argument is required')
+  }
+
+  if (!trust) {
+    throw new TypeError('trust argument is required')
+  }
+
+  var addrs = alladdrs(req, trust)
+  var addr = addrs[addrs.length - 1]
+
+  return addr
+}
+
+/**
+ * Static trust function to trust nothing.
+ *
+ * @private
+ */
+
+function trustNone () {
+  return false
+}
+
+/**
+ * Compile trust function for multiple subnets.
+ *
+ * @param {Array} subnets
+ * @private
+ */
+
+function trustMulti (subnets) {
+  return function trust (addr) {
+    if (!isip(addr)) return false
+
+    var ip = parseip(addr)
+    var ipconv
+    var kind = ip.kind()
+
+    for (var i = 0; i < subnets.length; i++) {
+      var subnet = subnets[i]
+      var subnetip = subnet[0]
+      var subnetkind = subnetip.kind()
+      var subnetrange = subnet[1]
+      var trusted = ip
+
+      if (kind !== subnetkind) {
+        if (subnetkind === 'ipv4' && !ip.isIPv4MappedAddress()) {
+          // Incompatible IP addresses
+          continue
+        }
+
+        if (!ipconv) {
+          // Convert IP to match subnet IP kind
+          ipconv = subnetkind === 'ipv4'
+            ? ip.toIPv4Address()
+            : ip.toIPv4MappedAddress()
+        }
+
+        trusted = ipconv
+      }
+
+      if (trusted.match(subnetip, subnetrange)) {
+        return true
+      }
+    }
+
+    return false
+  }
+}
+
+/**
+ * Compile trust function for single subnet.
+ *
+ * @param {Object} subnet
+ * @private
+ */
+
+function trustSingle (subnet) {
+  var subnetip = subnet[0]
+  var subnetkind = subnetip.kind()
+  var subnetisipv4 = subnetkind === 'ipv4'
+  var subnetrange = subnet[1]
+
+  return function trust (addr) {
+    if (!isip(addr)) return false
+
+    var ip = parseip(addr)
+    var kind = ip.kind()
+
+    if (kind !== subnetkind) {
+      if (subnetisipv4 && !ip.isIPv4MappedAddress()) {
+        // Incompatible IP addresses
+        return false
+      }
+
+      // Convert IP to match subnet IP kind
+      ip = subnetisipv4
+        ? ip.toIPv4Address()
+        : ip.toIPv4MappedAddress()
+    }
+
+    return ip.match(subnetip, subnetrange)
+  }
+}
diff --git a/backend/node_modules/proxy-addr/package.json b/backend/node_modules/proxy-addr/package.json
new file mode 100644
index 0000000..24ba8f7
--- /dev/null
+++ b/backend/node_modules/proxy-addr/package.json
@@ -0,0 +1,47 @@
+{
+  "name": "proxy-addr",
+  "description": "Determine address of proxied request",
+  "version": "2.0.7",
+  "author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
+  "license": "MIT",
+  "keywords": [
+    "ip",
+    "proxy",
+    "x-forwarded-for"
+  ],
+  "repository": "jshttp/proxy-addr",
+  "dependencies": {
+    "forwarded": "0.2.0",
+    "ipaddr.js": "1.9.1"
+  },
+  "devDependencies": {
+    "benchmark": "2.1.4",
+    "beautify-benchmark": "0.2.4",
+    "deep-equal": "1.0.1",
+    "eslint": "7.26.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.23.4",
+    "eslint-plugin-markdown": "2.2.0",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "4.3.1",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "8.4.0",
+    "nyc": "15.1.0"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "README.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.10"
+  },
+  "scripts": {
+    "bench": "node benchmark/index.js",
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
+  }
+}
diff --git a/backend/node_modules/proxy-from-env/.eslintrc b/backend/node_modules/proxy-from-env/.eslintrc
new file mode 100644
index 0000000..a51449b
--- /dev/null
+++ b/backend/node_modules/proxy-from-env/.eslintrc
@@ -0,0 +1,29 @@
+{
+  "env": {
+    "node": true
+  },
+  "rules": {
+    "array-bracket-spacing": [2, "never"],
+    "block-scoped-var": 2,
+    "brace-style": [2, "1tbs"],
+    "camelcase": 1,
+    "computed-property-spacing": [2, "never"],
+    "curly": 2,
+    "eol-last": 2,
+    "eqeqeq": [2, "smart"],
+    "max-depth": [1, 3],
+    "max-len": [1, 80],
+    "max-statements": [1, 15],
+    "new-cap": 1,
+    "no-extend-native": 2,
+    "no-mixed-spaces-and-tabs": 2,
+    "no-trailing-spaces": 2,
+    "no-unused-vars": 1,
+    "no-use-before-define": [2, "nofunc"],
+    "object-curly-spacing": [2, "never"],
+    "quotes": [2, "single", "avoid-escape"],
+    "semi": [2, "always"],
+    "keyword-spacing": [2, {"before": true, "after": true}],
+    "space-unary-ops": 2
+  }
+}
diff --git a/backend/node_modules/proxy-from-env/.travis.yml b/backend/node_modules/proxy-from-env/.travis.yml
new file mode 100644
index 0000000..64a05f9
--- /dev/null
+++ b/backend/node_modules/proxy-from-env/.travis.yml
@@ -0,0 +1,10 @@
+language: node_js
+node_js:
+  - node
+  - lts/*
+script:
+  - npm run lint
+  # test-coverage will also run the tests, but does not print helpful output upon test failure.
+  # So we also run the tests separately.
+  - npm run test
+  - npm run test-coverage && cat coverage/lcov.info | ./node_modules/.bin/coveralls && rm -rf coverage
diff --git a/backend/node_modules/proxy-from-env/LICENSE b/backend/node_modules/proxy-from-env/LICENSE
new file mode 100644
index 0000000..8f25097
--- /dev/null
+++ b/backend/node_modules/proxy-from-env/LICENSE
@@ -0,0 +1,20 @@
+The MIT License
+
+Copyright (C) 2016-2018 Rob Wu <rob@robwu.nl>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/proxy-from-env/README.md b/backend/node_modules/proxy-from-env/README.md
new file mode 100644
index 0000000..e82520c
--- /dev/null
+++ b/backend/node_modules/proxy-from-env/README.md
@@ -0,0 +1,131 @@
+# proxy-from-env
+
+[![Build Status](https://travis-ci.org/Rob--W/proxy-from-env.svg?branch=master)](https://travis-ci.org/Rob--W/proxy-from-env)
+[![Coverage Status](https://coveralls.io/repos/github/Rob--W/proxy-from-env/badge.svg?branch=master)](https://coveralls.io/github/Rob--W/proxy-from-env?branch=master)
+
+`proxy-from-env` is a Node.js package that exports a function (`getProxyForUrl`)
+that takes an input URL (a string or
+[`url.parse`](https://nodejs.org/docs/latest/api/url.html#url_url_parsing)'s
+return value) and returns the desired proxy URL (also a string) based on
+standard proxy environment variables. If no proxy is set, an empty string is
+returned.
+
+It is your responsibility to actually proxy the request using the given URL.
+
+Installation:
+
+```sh
+npm install proxy-from-env
+```
+
+## Example
+This example shows how the data for a URL can be fetched via the
+[`http` module](https://nodejs.org/api/http.html), in a proxy-aware way.
+
+```javascript
+var http = require('http');
+var parseUrl = require('url').parse;
+var getProxyForUrl = require('proxy-from-env').getProxyForUrl;
+
+var some_url = 'http://example.com/something';
+
+// // Example, if there is a proxy server at 10.0.0.1:1234, then setting the
+// // http_proxy environment variable causes the request to go through a proxy.
+// process.env.http_proxy = 'http://10.0.0.1:1234';
+// 
+// // But if the host to be proxied is listed in NO_PROXY, then the request is
+// // not proxied (but a direct request is made).
+// process.env.no_proxy = 'example.com';
+
+var proxy_url = getProxyForUrl(some_url);  // <-- Our magic.
+if (proxy_url) {
+  // Should be proxied through proxy_url.
+  var parsed_some_url = parseUrl(some_url);
+  var parsed_proxy_url = parseUrl(proxy_url);
+  // A HTTP proxy is quite simple. It is similar to a normal request, except the
+  // path is an absolute URL, and the proxied URL's host is put in the header
+  // instead of the server's actual host.
+  httpOptions = {
+    protocol: parsed_proxy_url.protocol,
+    hostname: parsed_proxy_url.hostname,
+    port: parsed_proxy_url.port,
+    path: parsed_some_url.href,
+    headers: {
+      Host: parsed_some_url.host,  // = host name + optional port.
+    },
+  };
+} else {
+  // Direct request.
+  httpOptions = some_url;
+}
+http.get(httpOptions, function(res) {
+  var responses = [];
+  res.on('data', function(chunk) { responses.push(chunk); });
+  res.on('end', function() { console.log(responses.join(''));  });
+});
+
+```
+
+## Environment variables
+The environment variables can be specified in lowercase or uppercase, with the
+lowercase name having precedence over the uppercase variant. A variable that is
+not set has the same meaning as a variable that is set but has no value.
+
+### NO\_PROXY
+
+`NO_PROXY` is a list of host names (optionally with a port). If the input URL
+matches any of the entries in `NO_PROXY`, then the input URL should be fetched
+by a direct request (i.e. without a proxy).
+
+Matching follows the following rules:
+
+- `NO_PROXY=*` disables all proxies.
+- Space and commas may be used to separate the entries in the `NO_PROXY` list.
+- If `NO_PROXY` does not contain any entries, then proxies are never disabled.
+- If a port is added after the host name, then the ports must match. If the URL
+  does not have an explicit port name, the protocol's default port is used.
+- Generally, the proxy is only disabled if the host name is an exact match for
+  an entry in the `NO_PROXY` list. The only exceptions are entries that start
+  with a dot or with a wildcard; then the proxy is disabled if the host name
+  ends with the entry.
+
+See `test.js` for examples of what should match and what does not.
+
+### \*\_PROXY
+
+The environment variable used for the proxy depends on the protocol of the URL.
+For example, `https://example.com` uses the "https" protocol, and therefore the
+proxy to be used is `HTTPS_PROXY` (_NOT_ `HTTP_PROXY`, which is _only_ used for
+http:-URLs).
+
+The library is not limited to http(s), other schemes such as
+`FTP_PROXY` (ftp:),
+`WSS_PROXY` (wss:),
+`WS_PROXY` (ws:)
+are also supported.
+
+If present, `ALL_PROXY` is used as fallback if there is no other match.
+
+
+## External resources
+The exact way of parsing the environment variables is not codified in any
+standard. This library is designed to be compatible with formats as expected by
+existing software.
+The following resources were used to determine the desired behavior:
+
+- cURL:
+  https://curl.haxx.se/docs/manpage.html#ENVIRONMENT  
+  https://github.com/curl/curl/blob/4af40b3646d3b09f68e419f7ca866ff395d1f897/lib/url.c#L4446-L4514  
+  https://github.com/curl/curl/blob/4af40b3646d3b09f68e419f7ca866ff395d1f897/lib/url.c#L4608-L4638  
+
+- wget: 
+  https://www.gnu.org/software/wget/manual/wget.html#Proxies  
+  http://git.savannah.gnu.org/cgit/wget.git/tree/src/init.c?id=636a5f9a1c508aa39e35a3a8e9e54520a284d93d#n383  
+  http://git.savannah.gnu.org/cgit/wget.git/tree/src/retr.c?id=93c1517c4071c4288ba5a4b038e7634e4c6b5482#n1278  
+
+- W3:
+  https://www.w3.org/Daemon/User/Proxies/ProxyClients.html  
+
+- Python's urllib:
+  https://github.com/python/cpython/blob/936135bb97fe04223aa30ca6e98eac8f3ed6b349/Lib/urllib/request.py#L755-L782  
+  https://github.com/python/cpython/blob/936135bb97fe04223aa30ca6e98eac8f3ed6b349/Lib/urllib/request.py#L2444-L2479
diff --git a/backend/node_modules/proxy-from-env/index.js b/backend/node_modules/proxy-from-env/index.js
new file mode 100644
index 0000000..df75004
--- /dev/null
+++ b/backend/node_modules/proxy-from-env/index.js
@@ -0,0 +1,108 @@
+'use strict';
+
+var parseUrl = require('url').parse;
+
+var DEFAULT_PORTS = {
+  ftp: 21,
+  gopher: 70,
+  http: 80,
+  https: 443,
+  ws: 80,
+  wss: 443,
+};
+
+var stringEndsWith = String.prototype.endsWith || function(s) {
+  return s.length <= this.length &&
+    this.indexOf(s, this.length - s.length) !== -1;
+};
+
+/**
+ * @param {string|object} url - The URL, or the result from url.parse.
+ * @return {string} The URL of the proxy that should handle the request to the
+ *  given URL. If no proxy is set, this will be an empty string.
+ */
+function getProxyForUrl(url) {
+  var parsedUrl = typeof url === 'string' ? parseUrl(url) : url || {};
+  var proto = parsedUrl.protocol;
+  var hostname = parsedUrl.host;
+  var port = parsedUrl.port;
+  if (typeof hostname !== 'string' || !hostname || typeof proto !== 'string') {
+    return '';  // Don't proxy URLs without a valid scheme or host.
+  }
+
+  proto = proto.split(':', 1)[0];
+  // Stripping ports in this way instead of using parsedUrl.hostname to make
+  // sure that the brackets around IPv6 addresses are kept.
+  hostname = hostname.replace(/:\d*$/, '');
+  port = parseInt(port) || DEFAULT_PORTS[proto] || 0;
+  if (!shouldProxy(hostname, port)) {
+    return '';  // Don't proxy URLs that match NO_PROXY.
+  }
+
+  var proxy =
+    getEnv('npm_config_' + proto + '_proxy') ||
+    getEnv(proto + '_proxy') ||
+    getEnv('npm_config_proxy') ||
+    getEnv('all_proxy');
+  if (proxy && proxy.indexOf('://') === -1) {
+    // Missing scheme in proxy, default to the requested URL's scheme.
+    proxy = proto + '://' + proxy;
+  }
+  return proxy;
+}
+
+/**
+ * Determines whether a given URL should be proxied.
+ *
+ * @param {string} hostname - The host name of the URL.
+ * @param {number} port - The effective port of the URL.
+ * @returns {boolean} Whether the given URL should be proxied.
+ * @private
+ */
+function shouldProxy(hostname, port) {
+  var NO_PROXY =
+    (getEnv('npm_config_no_proxy') || getEnv('no_proxy')).toLowerCase();
+  if (!NO_PROXY) {
+    return true;  // Always proxy if NO_PROXY is not set.
+  }
+  if (NO_PROXY === '*') {
+    return false;  // Never proxy if wildcard is set.
+  }
+
+  return NO_PROXY.split(/[,\s]/).every(function(proxy) {
+    if (!proxy) {
+      return true;  // Skip zero-length hosts.
+    }
+    var parsedProxy = proxy.match(/^(.+):(\d+)$/);
+    var parsedProxyHostname = parsedProxy ? parsedProxy[1] : proxy;
+    var parsedProxyPort = parsedProxy ? parseInt(parsedProxy[2]) : 0;
+    if (parsedProxyPort && parsedProxyPort !== port) {
+      return true;  // Skip if ports don't match.
+    }
+
+    if (!/^[.*]/.test(parsedProxyHostname)) {
+      // No wildcards, so stop proxying if there is an exact match.
+      return hostname !== parsedProxyHostname;
+    }
+
+    if (parsedProxyHostname.charAt(0) === '*') {
+      // Remove leading wildcard.
+      parsedProxyHostname = parsedProxyHostname.slice(1);
+    }
+    // Stop proxying if the hostname ends with the no_proxy host.
+    return !stringEndsWith.call(hostname, parsedProxyHostname);
+  });
+}
+
+/**
+ * Get the value for an environment variable.
+ *
+ * @param {string} key - The name of the environment variable.
+ * @return {string} The value of the environment variable.
+ * @private
+ */
+function getEnv(key) {
+  return process.env[key.toLowerCase()] || process.env[key.toUpperCase()] || '';
+}
+
+exports.getProxyForUrl = getProxyForUrl;
diff --git a/backend/node_modules/proxy-from-env/package.json b/backend/node_modules/proxy-from-env/package.json
new file mode 100644
index 0000000..be2b845
--- /dev/null
+++ b/backend/node_modules/proxy-from-env/package.json
@@ -0,0 +1,34 @@
+{
+  "name": "proxy-from-env",
+  "version": "1.1.0",
+  "description": "Offers getProxyForUrl to get the proxy URL for a URL, respecting the *_PROXY (e.g. HTTP_PROXY) and NO_PROXY environment variables.",
+  "main": "index.js",
+  "scripts": {
+    "lint": "eslint *.js",
+    "test": "mocha ./test.js --reporter spec",
+    "test-coverage": "istanbul cover ./node_modules/.bin/_mocha -- --reporter spec"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/Rob--W/proxy-from-env.git"
+  },
+  "keywords": [
+    "proxy",
+    "http_proxy",
+    "https_proxy",
+    "no_proxy",
+    "environment"
+  ],
+  "author": "Rob Wu <rob@robwu.nl> (https://robwu.nl/)",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/Rob--W/proxy-from-env/issues"
+  },
+  "homepage": "https://github.com/Rob--W/proxy-from-env#readme",
+  "devDependencies": {
+    "coveralls": "^3.0.9",
+    "eslint": "^6.8.0",
+    "istanbul": "^0.4.5",
+    "mocha": "^7.1.0"
+  }
+}
diff --git a/backend/node_modules/proxy-from-env/test.js b/backend/node_modules/proxy-from-env/test.js
new file mode 100644
index 0000000..abf6542
--- /dev/null
+++ b/backend/node_modules/proxy-from-env/test.js
@@ -0,0 +1,483 @@
+/* eslint max-statements:0 */
+'use strict';
+
+var assert = require('assert');
+var parseUrl = require('url').parse;
+
+var getProxyForUrl = require('./').getProxyForUrl;
+
+// Runs the callback with process.env temporarily set to env.
+function runWithEnv(env, callback) {
+  var originalEnv = process.env;
+  process.env = env;
+  try {
+    callback();
+  } finally {
+    process.env = originalEnv;
+  }
+}
+
+// Defines a test case that checks whether getProxyForUrl(input) === expected.
+function testProxyUrl(env, expected, input) {
+  assert(typeof env === 'object' && env !== null);
+  // Copy object to make sure that the in param does not get modified between
+  // the call of this function and the use of it below.
+  env = JSON.parse(JSON.stringify(env));
+
+  var title = 'getProxyForUrl(' + JSON.stringify(input) + ')' +
+     ' === ' + JSON.stringify(expected);
+
+  // Save call stack for later use.
+  var stack = {};
+  Error.captureStackTrace(stack, testProxyUrl);
+  // Only use the last stack frame because that shows where this function is
+  // called, and that is sufficient for our purpose. No need to flood the logs
+  // with an uninteresting stack trace.
+  stack = stack.stack.split('\n', 2)[1];
+
+  it(title, function() {
+    var actual;
+    runWithEnv(env, function() {
+      actual = getProxyForUrl(input);
+    });
+    if (expected === actual) {
+      return;  // Good!
+    }
+    try {
+      assert.strictEqual(expected, actual); // Create a formatted error message.
+      // Should not happen because previously we determined expected !== actual.
+      throw new Error('assert.strictEqual passed. This is impossible!');
+    } catch (e) {
+      // Use the original stack trace, so we can see a helpful line number.
+      e.stack = e.message + stack;
+      throw e;
+    }
+  });
+}
+
+describe('getProxyForUrl', function() {
+  describe('No proxy variables', function() {
+    var env = {};
+    testProxyUrl(env, '', 'http://example.com');
+    testProxyUrl(env, '', 'https://example.com');
+    testProxyUrl(env, '', 'ftp://example.com');
+  });
+
+  describe('Invalid URLs', function() {
+    var env = {};
+    env.ALL_PROXY = 'http://unexpected.proxy';
+    testProxyUrl(env, '', 'bogus');
+    testProxyUrl(env, '', '//example.com');
+    testProxyUrl(env, '', '://example.com');
+    testProxyUrl(env, '', '://');
+    testProxyUrl(env, '', '/path');
+    testProxyUrl(env, '', '');
+    testProxyUrl(env, '', 'http:');
+    testProxyUrl(env, '', 'http:/');
+    testProxyUrl(env, '', 'http://');
+    testProxyUrl(env, '', 'prototype://');
+    testProxyUrl(env, '', 'hasOwnProperty://');
+    testProxyUrl(env, '', '__proto__://');
+    testProxyUrl(env, '', undefined);
+    testProxyUrl(env, '', null);
+    testProxyUrl(env, '', {});
+    testProxyUrl(env, '', {host: 'x', protocol: 1});
+    testProxyUrl(env, '', {host: 1, protocol: 'x'});
+  });
+
+  describe('http_proxy and HTTP_PROXY', function() {
+    var env = {};
+    env.HTTP_PROXY = 'http://http-proxy';
+
+    testProxyUrl(env, '', 'https://example');
+    testProxyUrl(env, 'http://http-proxy', 'http://example');
+    testProxyUrl(env, 'http://http-proxy', parseUrl('http://example'));
+
+    // eslint-disable-next-line camelcase
+    env.http_proxy = 'http://priority';
+    testProxyUrl(env, 'http://priority', 'http://example');
+  });
+
+  describe('http_proxy with non-sensical value', function() {
+    var env = {};
+    // Crazy values should be passed as-is. It is the responsibility of the
+    // one who launches the application that the value makes sense.
+    // TODO: Should we be stricter and perform validation?
+    env.HTTP_PROXY = 'Crazy \n!() { ::// }';
+    testProxyUrl(env, 'Crazy \n!() { ::// }', 'http://wow');
+
+    // The implementation assumes that the HTTP_PROXY environment variable is
+    // somewhat reasonable, and if the scheme is missing, it is added.
+    // Garbage in, garbage out some would say...
+    env.HTTP_PROXY = 'crazy without colon slash slash';
+    testProxyUrl(env, 'http://crazy without colon slash slash', 'http://wow');
+  });
+
+  describe('https_proxy and HTTPS_PROXY', function() {
+    var env = {};
+    // Assert that there is no fall back to http_proxy
+    env.HTTP_PROXY = 'http://unexpected.proxy';
+    testProxyUrl(env, '', 'https://example');
+
+    env.HTTPS_PROXY = 'http://https-proxy';
+    testProxyUrl(env, 'http://https-proxy', 'https://example');
+
+    // eslint-disable-next-line camelcase
+    env.https_proxy = 'http://priority';
+    testProxyUrl(env, 'http://priority', 'https://example');
+  });
+
+  describe('ftp_proxy', function() {
+    var env = {};
+    // Something else than http_proxy / https, as a sanity check.
+    env.FTP_PROXY = 'http://ftp-proxy';
+
+    testProxyUrl(env, 'http://ftp-proxy', 'ftp://example');
+    testProxyUrl(env, '', 'ftps://example');
+  });
+
+  describe('all_proxy', function() {
+    var env = {};
+    env.ALL_PROXY = 'http://catch-all';
+    testProxyUrl(env, 'http://catch-all', 'https://example');
+
+    // eslint-disable-next-line camelcase
+    env.all_proxy = 'http://priority';
+    testProxyUrl(env, 'http://priority', 'https://example');
+  });
+
+  describe('all_proxy without scheme', function() {
+    var env = {};
+    env.ALL_PROXY = 'noscheme';
+    testProxyUrl(env, 'http://noscheme', 'http://example');
+    testProxyUrl(env, 'https://noscheme', 'https://example');
+
+    // The module does not impose restrictions on the scheme.
+    testProxyUrl(env, 'bogus-scheme://noscheme', 'bogus-scheme://example');
+
+    // But the URL should still be valid.
+    testProxyUrl(env, '', 'bogus');
+  });
+
+  describe('no_proxy empty', function() {
+    var env = {};
+    env.HTTPS_PROXY = 'http://proxy';
+
+    // NO_PROXY set but empty.
+    env.NO_PROXY = '';
+    testProxyUrl(env, 'http://proxy', 'https://example');
+
+    // No entries in NO_PROXY (comma).
+    env.NO_PROXY = ',';
+    testProxyUrl(env, 'http://proxy', 'https://example');
+
+    // No entries in NO_PROXY (whitespace).
+    env.NO_PROXY = ' ';
+    testProxyUrl(env, 'http://proxy', 'https://example');
+
+    // No entries in NO_PROXY (multiple whitespace / commas).
+    env.NO_PROXY = ',\t,,,\n,  ,\r';
+    testProxyUrl(env, 'http://proxy', 'https://example');
+  });
+
+  describe('no_proxy=example (single host)', function() {
+    var env = {};
+    env.HTTP_PROXY = 'http://proxy';
+
+    env.NO_PROXY = 'example';
+    testProxyUrl(env, '', 'http://example');
+    testProxyUrl(env, '', 'http://example:80');
+    testProxyUrl(env, '', 'http://example:0');
+    testProxyUrl(env, '', 'http://example:1337');
+    testProxyUrl(env, 'http://proxy', 'http://sub.example');
+    testProxyUrl(env, 'http://proxy', 'http://prefexample');
+    testProxyUrl(env, 'http://proxy', 'http://example.no');
+    testProxyUrl(env, 'http://proxy', 'http://a.b.example');
+    testProxyUrl(env, 'http://proxy', 'http://host/example');
+  });
+
+  describe('no_proxy=sub.example (subdomain)', function() {
+    var env = {};
+    env.HTTP_PROXY = 'http://proxy';
+
+    env.NO_PROXY = 'sub.example';
+    testProxyUrl(env, 'http://proxy', 'http://example');
+    testProxyUrl(env, 'http://proxy', 'http://example:80');
+    testProxyUrl(env, 'http://proxy', 'http://example:0');
+    testProxyUrl(env, 'http://proxy', 'http://example:1337');
+    testProxyUrl(env, '', 'http://sub.example');
+    testProxyUrl(env, 'http://proxy', 'http://no.sub.example');
+    testProxyUrl(env, 'http://proxy', 'http://sub-example');
+    testProxyUrl(env, 'http://proxy', 'http://example.sub');
+  });
+
+  describe('no_proxy=example:80 (host + port)', function() {
+    var env = {};
+    env.HTTP_PROXY = 'http://proxy';
+
+    env.NO_PROXY = 'example:80';
+    testProxyUrl(env, '', 'http://example');
+    testProxyUrl(env, '', 'http://example:80');
+    testProxyUrl(env, '', 'http://example:0');
+    testProxyUrl(env, 'http://proxy', 'http://example:1337');
+    testProxyUrl(env, 'http://proxy', 'http://sub.example');
+    testProxyUrl(env, 'http://proxy', 'http://prefexample');
+    testProxyUrl(env, 'http://proxy', 'http://example.no');
+    testProxyUrl(env, 'http://proxy', 'http://a.b.example');
+  });
+
+  describe('no_proxy=.example (host suffix)', function() {
+    var env = {};
+    env.HTTP_PROXY = 'http://proxy';
+
+    env.NO_PROXY = '.example';
+    testProxyUrl(env, 'http://proxy', 'http://example');
+    testProxyUrl(env, 'http://proxy', 'http://example:80');
+    testProxyUrl(env, 'http://proxy', 'http://example:1337');
+    testProxyUrl(env, '', 'http://sub.example');
+    testProxyUrl(env, '', 'http://sub.example:80');
+    testProxyUrl(env, '', 'http://sub.example:1337');
+    testProxyUrl(env, 'http://proxy', 'http://prefexample');
+    testProxyUrl(env, 'http://proxy', 'http://example.no');
+    testProxyUrl(env, '', 'http://a.b.example');
+  });
+
+  describe('no_proxy=*', function() {
+    var env = {};
+    env.HTTP_PROXY = 'http://proxy';
+    env.NO_PROXY = '*';
+    testProxyUrl(env, '', 'http://example.com');
+  });
+
+  describe('no_proxy=*.example (host suffix with *.)', function() {
+    var env = {};
+    env.HTTP_PROXY = 'http://proxy';
+
+    env.NO_PROXY = '*.example';
+    testProxyUrl(env, 'http://proxy', 'http://example');
+    testProxyUrl(env, 'http://proxy', 'http://example:80');
+    testProxyUrl(env, 'http://proxy', 'http://example:1337');
+    testProxyUrl(env, '', 'http://sub.example');
+    testProxyUrl(env, '', 'http://sub.example:80');
+    testProxyUrl(env, '', 'http://sub.example:1337');
+    testProxyUrl(env, 'http://proxy', 'http://prefexample');
+    testProxyUrl(env, 'http://proxy', 'http://example.no');
+    testProxyUrl(env, '', 'http://a.b.example');
+  });
+
+  describe('no_proxy=*example (substring suffix)', function() {
+    var env = {};
+    env.HTTP_PROXY = 'http://proxy';
+
+    env.NO_PROXY = '*example';
+    testProxyUrl(env, '', 'http://example');
+    testProxyUrl(env, '', 'http://example:80');
+    testProxyUrl(env, '', 'http://example:1337');
+    testProxyUrl(env, '', 'http://sub.example');
+    testProxyUrl(env, '', 'http://sub.example:80');
+    testProxyUrl(env, '', 'http://sub.example:1337');
+    testProxyUrl(env, '', 'http://prefexample');
+    testProxyUrl(env, '', 'http://a.b.example');
+    testProxyUrl(env, 'http://proxy', 'http://example.no');
+    testProxyUrl(env, 'http://proxy', 'http://host/example');
+  });
+
+  describe('no_proxy=.*example (arbitrary wildcards are NOT supported)',
+      function() {
+    var env = {};
+    env.HTTP_PROXY = 'http://proxy';
+
+    env.NO_PROXY = '.*example';
+    testProxyUrl(env, 'http://proxy', 'http://example');
+    testProxyUrl(env, 'http://proxy', 'http://sub.example');
+    testProxyUrl(env, 'http://proxy', 'http://sub.example');
+    testProxyUrl(env, 'http://proxy', 'http://prefexample');
+    testProxyUrl(env, 'http://proxy', 'http://x.prefexample');
+    testProxyUrl(env, 'http://proxy', 'http://a.b.example');
+  });
+
+  describe('no_proxy=[::1],[::2]:80,10.0.0.1,10.0.0.2:80 (IP addresses)',
+      function() {
+    var env = {};
+    env.HTTP_PROXY = 'http://proxy';
+
+    env.NO_PROXY = '[::1],[::2]:80,10.0.0.1,10.0.0.2:80';
+    testProxyUrl(env, '', 'http://[::1]/');
+    testProxyUrl(env, '', 'http://[::1]:80/');
+    testProxyUrl(env, '', 'http://[::1]:1337/');
+
+    testProxyUrl(env, '', 'http://[::2]/');
+    testProxyUrl(env, '', 'http://[::2]:80/');
+    testProxyUrl(env, 'http://proxy', 'http://[::2]:1337/');
+
+    testProxyUrl(env, '', 'http://10.0.0.1/');
+    testProxyUrl(env, '', 'http://10.0.0.1:80/');
+    testProxyUrl(env, '', 'http://10.0.0.1:1337/');
+
+    testProxyUrl(env, '', 'http://10.0.0.2/');
+    testProxyUrl(env, '', 'http://10.0.0.2:80/');
+    testProxyUrl(env, 'http://proxy', 'http://10.0.0.2:1337/');
+  });
+
+  describe('no_proxy=127.0.0.1/32 (CIDR is NOT supported)', function() {
+    var env = {};
+    env.HTTP_PROXY = 'http://proxy';
+
+    env.NO_PROXY = '127.0.0.1/32';
+    testProxyUrl(env, 'http://proxy', 'http://127.0.0.1');
+    testProxyUrl(env, 'http://proxy', 'http://127.0.0.1/32');
+  });
+
+  describe('no_proxy=127.0.0.1 does NOT match localhost', function() {
+    var env = {};
+    env.HTTP_PROXY = 'http://proxy';
+
+    env.NO_PROXY = '127.0.0.1';
+    testProxyUrl(env, '', 'http://127.0.0.1');
+    // We're not performing DNS queries, so this shouldn't match.
+    testProxyUrl(env, 'http://proxy', 'http://localhost');
+  });
+
+  describe('no_proxy with protocols that have a default port', function() {
+    var env = {};
+    env.WS_PROXY = 'http://ws';
+    env.WSS_PROXY = 'http://wss';
+    env.HTTP_PROXY = 'http://http';
+    env.HTTPS_PROXY = 'http://https';
+    env.GOPHER_PROXY = 'http://gopher';
+    env.FTP_PROXY = 'http://ftp';
+    env.ALL_PROXY = 'http://all';
+
+    env.NO_PROXY = 'xxx:21,xxx:70,xxx:80,xxx:443';
+
+    testProxyUrl(env, '', 'http://xxx');
+    testProxyUrl(env, '', 'http://xxx:80');
+    testProxyUrl(env, 'http://http', 'http://xxx:1337');
+
+    testProxyUrl(env, '', 'ws://xxx');
+    testProxyUrl(env, '', 'ws://xxx:80');
+    testProxyUrl(env, 'http://ws', 'ws://xxx:1337');
+
+    testProxyUrl(env, '', 'https://xxx');
+    testProxyUrl(env, '', 'https://xxx:443');
+    testProxyUrl(env, 'http://https', 'https://xxx:1337');
+
+    testProxyUrl(env, '', 'wss://xxx');
+    testProxyUrl(env, '', 'wss://xxx:443');
+    testProxyUrl(env, 'http://wss', 'wss://xxx:1337');
+
+    testProxyUrl(env, '', 'gopher://xxx');
+    testProxyUrl(env, '', 'gopher://xxx:70');
+    testProxyUrl(env, 'http://gopher', 'gopher://xxx:1337');
+
+    testProxyUrl(env, '', 'ftp://xxx');
+    testProxyUrl(env, '', 'ftp://xxx:21');
+    testProxyUrl(env, 'http://ftp', 'ftp://xxx:1337');
+  });
+
+  describe('no_proxy should not be case-sensitive', function() {
+    var env = {};
+    env.HTTP_PROXY = 'http://proxy';
+    env.NO_PROXY = 'XXX,YYY,ZzZ';
+
+    testProxyUrl(env, '', 'http://xxx');
+    testProxyUrl(env, '', 'http://XXX');
+    testProxyUrl(env, '', 'http://yyy');
+    testProxyUrl(env, '', 'http://YYY');
+    testProxyUrl(env, '', 'http://ZzZ');
+    testProxyUrl(env, '', 'http://zZz');
+  });
+
+  describe('NPM proxy configuration', function() {
+    describe('npm_config_http_proxy should work', function() {
+      var env = {};
+      // eslint-disable-next-line camelcase
+      env.npm_config_http_proxy = 'http://http-proxy';
+
+      testProxyUrl(env, '', 'https://example');
+      testProxyUrl(env, 'http://http-proxy', 'http://example');
+
+      // eslint-disable-next-line camelcase
+      env.npm_config_http_proxy = 'http://priority';
+      testProxyUrl(env, 'http://priority', 'http://example');
+    });
+    // eslint-disable-next-line max-len
+    describe('npm_config_http_proxy should take precedence over HTTP_PROXY and npm_config_proxy', function() {
+      var env = {};
+      // eslint-disable-next-line camelcase
+      env.npm_config_http_proxy = 'http://http-proxy';
+      // eslint-disable-next-line camelcase
+      env.npm_config_proxy = 'http://unexpected-proxy';
+      env.HTTP_PROXY = 'http://unexpected-proxy';
+
+      testProxyUrl(env, 'http://http-proxy', 'http://example');
+    });
+    describe('npm_config_https_proxy should work', function() {
+      var env = {};
+      // eslint-disable-next-line camelcase
+      env.npm_config_http_proxy = 'http://unexpected.proxy';
+      testProxyUrl(env, '', 'https://example');
+
+      // eslint-disable-next-line camelcase
+      env.npm_config_https_proxy = 'http://https-proxy';
+      testProxyUrl(env, 'http://https-proxy', 'https://example');
+
+      // eslint-disable-next-line camelcase
+      env.npm_config_https_proxy = 'http://priority';
+      testProxyUrl(env, 'http://priority', 'https://example');
+    });
+    // eslint-disable-next-line max-len
+    describe('npm_config_https_proxy should take precedence over HTTPS_PROXY and npm_config_proxy', function() {
+      var env = {};
+      // eslint-disable-next-line camelcase
+      env.npm_config_https_proxy = 'http://https-proxy';
+      // eslint-disable-next-line camelcase
+      env.npm_config_proxy = 'http://unexpected-proxy';
+      env.HTTPS_PROXY = 'http://unexpected-proxy';
+
+      testProxyUrl(env, 'http://https-proxy', 'https://example');
+    });
+    describe('npm_config_proxy should work', function() {
+      var env = {};
+      // eslint-disable-next-line camelcase
+      env.npm_config_proxy = 'http://http-proxy';
+      testProxyUrl(env, 'http://http-proxy', 'http://example');
+      testProxyUrl(env, 'http://http-proxy', 'https://example');
+
+      // eslint-disable-next-line camelcase
+      env.npm_config_proxy = 'http://priority';
+      testProxyUrl(env, 'http://priority', 'http://example');
+      testProxyUrl(env, 'http://priority', 'https://example');
+    });
+    // eslint-disable-next-line max-len
+    describe('HTTP_PROXY and HTTPS_PROXY should take precedence over npm_config_proxy', function() {
+      var env = {};
+      env.HTTP_PROXY = 'http://http-proxy';
+      env.HTTPS_PROXY = 'http://https-proxy';
+      // eslint-disable-next-line camelcase
+      env.npm_config_proxy = 'http://unexpected-proxy';
+      testProxyUrl(env, 'http://http-proxy', 'http://example');
+      testProxyUrl(env, 'http://https-proxy', 'https://example');
+    });
+    describe('npm_config_no_proxy should work', function() {
+      var env = {};
+      env.HTTP_PROXY = 'http://proxy';
+      // eslint-disable-next-line camelcase
+      env.npm_config_no_proxy = 'example';
+
+      testProxyUrl(env, '', 'http://example');
+      testProxyUrl(env, 'http://proxy', 'http://otherwebsite');
+    });
+    // eslint-disable-next-line max-len
+    describe('npm_config_no_proxy should take precedence over NO_PROXY', function() {
+      var env = {};
+      env.HTTP_PROXY = 'http://proxy';
+      env.NO_PROXY = 'otherwebsite';
+      // eslint-disable-next-line camelcase
+      env.npm_config_no_proxy = 'example';
+
+      testProxyUrl(env, '', 'http://example');
+      testProxyUrl(env, 'http://proxy', 'http://otherwebsite');
+    });
+  });
+});
diff --git a/backend/node_modules/punycode/LICENSE-MIT.txt b/backend/node_modules/punycode/LICENSE-MIT.txt
new file mode 100644
index 0000000..a41e0a7
--- /dev/null
+++ b/backend/node_modules/punycode/LICENSE-MIT.txt
@@ -0,0 +1,20 @@
+Copyright Mathias Bynens <https://mathiasbynens.be/>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/punycode/README.md b/backend/node_modules/punycode/README.md
new file mode 100644
index 0000000..f611016
--- /dev/null
+++ b/backend/node_modules/punycode/README.md
@@ -0,0 +1,148 @@
+# Punycode.js [![punycode on npm](https://img.shields.io/npm/v/punycode)](https://www.npmjs.com/package/punycode) [![](https://data.jsdelivr.com/v1/package/npm/punycode/badge)](https://www.jsdelivr.com/package/npm/punycode)
+
+Punycode.js is a robust Punycode converter that fully complies to [RFC 3492](https://tools.ietf.org/html/rfc3492) and [RFC 5891](https://tools.ietf.org/html/rfc5891).
+
+This JavaScript library is the result of comparing, optimizing and documenting different open-source implementations of the Punycode algorithm:
+
+* [The C example code from RFC 3492](https://tools.ietf.org/html/rfc3492#appendix-C)
+* [`punycode.c` by _Markus W. Scherer_ (IBM)](http://opensource.apple.com/source/ICU/ICU-400.42/icuSources/common/punycode.c)
+* [`punycode.c` by _Ben Noordhuis_](https://github.com/bnoordhuis/punycode/blob/master/punycode.c)
+* [JavaScript implementation by _some_](http://stackoverflow.com/questions/183485/can-anyone-recommend-a-good-free-javascript-for-punycode-to-unicode-conversion/301287#301287)
+* [`punycode.js` by _Ben Noordhuis_](https://github.com/joyent/node/blob/426298c8c1c0d5b5224ac3658c41e7c2a3fe9377/lib/punycode.js) (note: [not fully compliant](https://github.com/joyent/node/issues/2072))
+
+This project was [bundled](https://github.com/joyent/node/blob/master/lib/punycode.js) with Node.js from [v0.6.2+](https://github.com/joyent/node/compare/975f1930b1...61e796decc) until [v7](https://github.com/nodejs/node/pull/7941) (soft-deprecated).
+
+This project provides a CommonJS module that uses ES2015+ features and JavaScript module, which work in modern Node.js versions and browsers. For the old Punycode.js version that offers the same functionality in a UMD build with support for older pre-ES2015 runtimes, including Rhino, Ringo, and Narwhal, see [v1.4.1](https://github.com/mathiasbynens/punycode.js/releases/tag/v1.4.1).
+
+## Installation
+
+Via [npm](https://www.npmjs.com/):
+
+```bash
+npm install punycode --save
+```
+
+In [Node.js](https://nodejs.org/):
+
+> ⚠️ Note that userland modules don't hide core modules.
+> For example, `require('punycode')` still imports the deprecated core module even if you executed `npm install punycode`.
+> Use `require('punycode/')` to import userland modules rather than core modules.
+
+```js
+const punycode = require('punycode/');
+```
+
+## API
+
+### `punycode.decode(string)`
+
+Converts a Punycode string of ASCII symbols to a string of Unicode symbols.
+
+```js
+// decode domain name parts
+punycode.decode('maana-pta'); // 'mañana'
+punycode.decode('--dqo34k'); // '☃-⌘'
+```
+
+### `punycode.encode(string)`
+
+Converts a string of Unicode symbols to a Punycode string of ASCII symbols.
+
+```js
+// encode domain name parts
+punycode.encode('mañana'); // 'maana-pta'
+punycode.encode('☃-⌘'); // '--dqo34k'
+```
+
+### `punycode.toUnicode(input)`
+
+Converts a Punycode string representing a domain name or an email address to Unicode. Only the Punycoded parts of the input will be converted, i.e. it doesn’t matter if you call it on a string that has already been converted to Unicode.
+
+```js
+// decode domain names
+punycode.toUnicode('xn--maana-pta.com');
+// → 'mañana.com'
+punycode.toUnicode('xn----dqo34k.com');
+// → '☃-⌘.com'
+
+// decode email addresses
+punycode.toUnicode('джумла@xn--p-8sbkgc5ag7bhce.xn--ba-lmcq');
+// → 'джумла@джpумлатест.bрфa'
+```
+
+### `punycode.toASCII(input)`
+
+Converts a lowercased Unicode string representing a domain name or an email address to Punycode. Only the non-ASCII parts of the input will be converted, i.e. it doesn’t matter if you call it with a domain that’s already in ASCII.
+
+```js
+// encode domain names
+punycode.toASCII('mañana.com');
+// → 'xn--maana-pta.com'
+punycode.toASCII('☃-⌘.com');
+// → 'xn----dqo34k.com'
+
+// encode email addresses
+punycode.toASCII('джумла@джpумлатест.bрфa');
+// → 'джумла@xn--p-8sbkgc5ag7bhce.xn--ba-lmcq'
+```
+
+### `punycode.ucs2`
+
+#### `punycode.ucs2.decode(string)`
+
+Creates an array containing the numeric code point values of each Unicode symbol in the string. While [JavaScript uses UCS-2 internally](https://mathiasbynens.be/notes/javascript-encoding), this function will convert a pair of surrogate halves (each of which UCS-2 exposes as separate characters) into a single code point, matching UTF-16.
+
+```js
+punycode.ucs2.decode('abc');
+// → [0x61, 0x62, 0x63]
+// surrogate pair for U+1D306 TETRAGRAM FOR CENTRE:
+punycode.ucs2.decode('\uD834\uDF06');
+// → [0x1D306]
+```
+
+#### `punycode.ucs2.encode(codePoints)`
+
+Creates a string based on an array of numeric code point values.
+
+```js
+punycode.ucs2.encode([0x61, 0x62, 0x63]);
+// → 'abc'
+punycode.ucs2.encode([0x1D306]);
+// → '\uD834\uDF06'
+```
+
+### `punycode.version`
+
+A string representing the current Punycode.js version number.
+
+## For maintainers
+
+### How to publish a new release
+
+1. On the `main` branch, bump the version number in `package.json`:
+
+    ```sh
+    npm version patch -m 'Release v%s'
+    ```
+
+    Instead of `patch`, use `minor` or `major` [as needed](https://semver.org/).
+
+    Note that this produces a Git commit + tag.
+
+1. Push the release commit and tag:
+
+    ```sh
+    git push && git push --tags
+    ```
+
+    Our CI then automatically publishes the new release to npm, under both the [`punycode`](https://www.npmjs.com/package/punycode) and [`punycode.js`](https://www.npmjs.com/package/punycode.js) names.
+
+## Author
+
+| [![twitter/mathias](https://gravatar.com/avatar/24e08a9ea84deb17ae121074d0f17125?s=70)](https://twitter.com/mathias "Follow @mathias on Twitter") |
+|---|
+| [Mathias Bynens](https://mathiasbynens.be/) |
+
+## License
+
+Punycode.js is available under the [MIT](https://mths.be/mit) license.
diff --git a/backend/node_modules/punycode/package.json b/backend/node_modules/punycode/package.json
new file mode 100644
index 0000000..b8b76fc
--- /dev/null
+++ b/backend/node_modules/punycode/package.json
@@ -0,0 +1,58 @@
+{
+  "name": "punycode",
+  "version": "2.3.1",
+  "description": "A robust Punycode converter that fully complies to RFC 3492 and RFC 5891, and works on nearly all JavaScript platforms.",
+  "homepage": "https://mths.be/punycode",
+  "main": "punycode.js",
+  "jsnext:main": "punycode.es6.js",
+  "module": "punycode.es6.js",
+  "engines": {
+    "node": ">=6"
+  },
+  "keywords": [
+    "punycode",
+    "unicode",
+    "idn",
+    "idna",
+    "dns",
+    "url",
+    "domain"
+  ],
+  "license": "MIT",
+  "author": {
+    "name": "Mathias Bynens",
+    "url": "https://mathiasbynens.be/"
+  },
+  "contributors": [
+    {
+      "name": "Mathias Bynens",
+      "url": "https://mathiasbynens.be/"
+    }
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/mathiasbynens/punycode.js.git"
+  },
+  "bugs": "https://github.com/mathiasbynens/punycode.js/issues",
+  "files": [
+    "LICENSE-MIT.txt",
+    "punycode.js",
+    "punycode.es6.js"
+  ],
+  "scripts": {
+    "test": "mocha tests",
+    "build": "node scripts/prepublish.js"
+  },
+  "devDependencies": {
+    "codecov": "^3.8.3",
+    "nyc": "^15.1.0",
+    "mocha": "^10.2.0"
+  },
+  "jspm": {
+    "map": {
+      "./punycode.js": {
+        "node": "@node/punycode"
+      }
+    }
+  }
+}
diff --git a/backend/node_modules/punycode/punycode.es6.js b/backend/node_modules/punycode/punycode.es6.js
new file mode 100644
index 0000000..dadece2
--- /dev/null
+++ b/backend/node_modules/punycode/punycode.es6.js
@@ -0,0 +1,444 @@
+'use strict';
+
+/** Highest positive signed 32-bit float value */
+const maxInt = 2147483647; // aka. 0x7FFFFFFF or 2^31-1
+
+/** Bootstring parameters */
+const base = 36;
+const tMin = 1;
+const tMax = 26;
+const skew = 38;
+const damp = 700;
+const initialBias = 72;
+const initialN = 128; // 0x80
+const delimiter = '-'; // '\x2D'
+
+/** Regular expressions */
+const regexPunycode = /^xn--/;
+const regexNonASCII = /[^\0-\x7F]/; // Note: U+007F DEL is excluded too.
+const regexSeparators = /[\x2E\u3002\uFF0E\uFF61]/g; // RFC 3490 separators
+
+/** Error messages */
+const errors = {
+	'overflow': 'Overflow: input needs wider integers to process',
+	'not-basic': 'Illegal input >= 0x80 (not a basic code point)',
+	'invalid-input': 'Invalid input'
+};
+
+/** Convenience shortcuts */
+const baseMinusTMin = base - tMin;
+const floor = Math.floor;
+const stringFromCharCode = String.fromCharCode;
+
+/*--------------------------------------------------------------------------*/
+
+/**
+ * A generic error utility function.
+ * @private
+ * @param {String} type The error type.
+ * @returns {Error} Throws a `RangeError` with the applicable error message.
+ */
+function error(type) {
+	throw new RangeError(errors[type]);
+}
+
+/**
+ * A generic `Array#map` utility function.
+ * @private
+ * @param {Array} array The array to iterate over.
+ * @param {Function} callback The function that gets called for every array
+ * item.
+ * @returns {Array} A new array of values returned by the callback function.
+ */
+function map(array, callback) {
+	const result = [];
+	let length = array.length;
+	while (length--) {
+		result[length] = callback(array[length]);
+	}
+	return result;
+}
+
+/**
+ * A simple `Array#map`-like wrapper to work with domain name strings or email
+ * addresses.
+ * @private
+ * @param {String} domain The domain name or email address.
+ * @param {Function} callback The function that gets called for every
+ * character.
+ * @returns {String} A new string of characters returned by the callback
+ * function.
+ */
+function mapDomain(domain, callback) {
+	const parts = domain.split('@');
+	let result = '';
+	if (parts.length > 1) {
+		// In email addresses, only the domain name should be punycoded. Leave
+		// the local part (i.e. everything up to `@`) intact.
+		result = parts[0] + '@';
+		domain = parts[1];
+	}
+	// Avoid `split(regex)` for IE8 compatibility. See #17.
+	domain = domain.replace(regexSeparators, '\x2E');
+	const labels = domain.split('.');
+	const encoded = map(labels, callback).join('.');
+	return result + encoded;
+}
+
+/**
+ * Creates an array containing the numeric code points of each Unicode
+ * character in the string. While JavaScript uses UCS-2 internally,
+ * this function will convert a pair of surrogate halves (each of which
+ * UCS-2 exposes as separate characters) into a single code point,
+ * matching UTF-16.
+ * @see `punycode.ucs2.encode`
+ * @see <https://mathiasbynens.be/notes/javascript-encoding>
+ * @memberOf punycode.ucs2
+ * @name decode
+ * @param {String} string The Unicode input string (UCS-2).
+ * @returns {Array} The new array of code points.
+ */
+function ucs2decode(string) {
+	const output = [];
+	let counter = 0;
+	const length = string.length;
+	while (counter < length) {
+		const value = string.charCodeAt(counter++);
+		if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
+			// It's a high surrogate, and there is a next character.
+			const extra = string.charCodeAt(counter++);
+			if ((extra & 0xFC00) == 0xDC00) { // Low surrogate.
+				output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
+			} else {
+				// It's an unmatched surrogate; only append this code unit, in case the
+				// next code unit is the high surrogate of a surrogate pair.
+				output.push(value);
+				counter--;
+			}
+		} else {
+			output.push(value);
+		}
+	}
+	return output;
+}
+
+/**
+ * Creates a string based on an array of numeric code points.
+ * @see `punycode.ucs2.decode`
+ * @memberOf punycode.ucs2
+ * @name encode
+ * @param {Array} codePoints The array of numeric code points.
+ * @returns {String} The new Unicode string (UCS-2).
+ */
+const ucs2encode = codePoints => String.fromCodePoint(...codePoints);
+
+/**
+ * Converts a basic code point into a digit/integer.
+ * @see `digitToBasic()`
+ * @private
+ * @param {Number} codePoint The basic numeric code point value.
+ * @returns {Number} The numeric value of a basic code point (for use in
+ * representing integers) in the range `0` to `base - 1`, or `base` if
+ * the code point does not represent a value.
+ */
+const basicToDigit = function(codePoint) {
+	if (codePoint >= 0x30 && codePoint < 0x3A) {
+		return 26 + (codePoint - 0x30);
+	}
+	if (codePoint >= 0x41 && codePoint < 0x5B) {
+		return codePoint - 0x41;
+	}
+	if (codePoint >= 0x61 && codePoint < 0x7B) {
+		return codePoint - 0x61;
+	}
+	return base;
+};
+
+/**
+ * Converts a digit/integer into a basic code point.
+ * @see `basicToDigit()`
+ * @private
+ * @param {Number} digit The numeric value of a basic code point.
+ * @returns {Number} The basic code point whose value (when used for
+ * representing integers) is `digit`, which needs to be in the range
+ * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is
+ * used; else, the lowercase form is used. The behavior is undefined
+ * if `flag` is non-zero and `digit` has no uppercase form.
+ */
+const digitToBasic = function(digit, flag) {
+	//  0..25 map to ASCII a..z or A..Z
+	// 26..35 map to ASCII 0..9
+	return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5);
+};
+
+/**
+ * Bias adaptation function as per section 3.4 of RFC 3492.
+ * https://tools.ietf.org/html/rfc3492#section-3.4
+ * @private
+ */
+const adapt = function(delta, numPoints, firstTime) {
+	let k = 0;
+	delta = firstTime ? floor(delta / damp) : delta >> 1;
+	delta += floor(delta / numPoints);
+	for (/* no initialization */; delta > baseMinusTMin * tMax >> 1; k += base) {
+		delta = floor(delta / baseMinusTMin);
+	}
+	return floor(k + (baseMinusTMin + 1) * delta / (delta + skew));
+};
+
+/**
+ * Converts a Punycode string of ASCII-only symbols to a string of Unicode
+ * symbols.
+ * @memberOf punycode
+ * @param {String} input The Punycode string of ASCII-only symbols.
+ * @returns {String} The resulting string of Unicode symbols.
+ */
+const decode = function(input) {
+	// Don't use UCS-2.
+	const output = [];
+	const inputLength = input.length;
+	let i = 0;
+	let n = initialN;
+	let bias = initialBias;
+
+	// Handle the basic code points: let `basic` be the number of input code
+	// points before the last delimiter, or `0` if there is none, then copy
+	// the first basic code points to the output.
+
+	let basic = input.lastIndexOf(delimiter);
+	if (basic < 0) {
+		basic = 0;
+	}
+
+	for (let j = 0; j < basic; ++j) {
+		// if it's not a basic code point
+		if (input.charCodeAt(j) >= 0x80) {
+			error('not-basic');
+		}
+		output.push(input.charCodeAt(j));
+	}
+
+	// Main decoding loop: start just after the last delimiter if any basic code
+	// points were copied; start at the beginning otherwise.
+
+	for (let index = basic > 0 ? basic + 1 : 0; index < inputLength; /* no final expression */) {
+
+		// `index` is the index of the next character to be consumed.
+		// Decode a generalized variable-length integer into `delta`,
+		// which gets added to `i`. The overflow checking is easier
+		// if we increase `i` as we go, then subtract off its starting
+		// value at the end to obtain `delta`.
+		const oldi = i;
+		for (let w = 1, k = base; /* no condition */; k += base) {
+
+			if (index >= inputLength) {
+				error('invalid-input');
+			}
+
+			const digit = basicToDigit(input.charCodeAt(index++));
+
+			if (digit >= base) {
+				error('invalid-input');
+			}
+			if (digit > floor((maxInt - i) / w)) {
+				error('overflow');
+			}
+
+			i += digit * w;
+			const t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);
+
+			if (digit < t) {
+				break;
+			}
+
+			const baseMinusT = base - t;
+			if (w > floor(maxInt / baseMinusT)) {
+				error('overflow');
+			}
+
+			w *= baseMinusT;
+
+		}
+
+		const out = output.length + 1;
+		bias = adapt(i - oldi, out, oldi == 0);
+
+		// `i` was supposed to wrap around from `out` to `0`,
+		// incrementing `n` each time, so we'll fix that now:
+		if (floor(i / out) > maxInt - n) {
+			error('overflow');
+		}
+
+		n += floor(i / out);
+		i %= out;
+
+		// Insert `n` at position `i` of the output.
+		output.splice(i++, 0, n);
+
+	}
+
+	return String.fromCodePoint(...output);
+};
+
+/**
+ * Converts a string of Unicode symbols (e.g. a domain name label) to a
+ * Punycode string of ASCII-only symbols.
+ * @memberOf punycode
+ * @param {String} input The string of Unicode symbols.
+ * @returns {String} The resulting Punycode string of ASCII-only symbols.
+ */
+const encode = function(input) {
+	const output = [];
+
+	// Convert the input in UCS-2 to an array of Unicode code points.
+	input = ucs2decode(input);
+
+	// Cache the length.
+	const inputLength = input.length;
+
+	// Initialize the state.
+	let n = initialN;
+	let delta = 0;
+	let bias = initialBias;
+
+	// Handle the basic code points.
+	for (const currentValue of input) {
+		if (currentValue < 0x80) {
+			output.push(stringFromCharCode(currentValue));
+		}
+	}
+
+	const basicLength = output.length;
+	let handledCPCount = basicLength;
+
+	// `handledCPCount` is the number of code points that have been handled;
+	// `basicLength` is the number of basic code points.
+
+	// Finish the basic string with a delimiter unless it's empty.
+	if (basicLength) {
+		output.push(delimiter);
+	}
+
+	// Main encoding loop:
+	while (handledCPCount < inputLength) {
+
+		// All non-basic code points < n have been handled already. Find the next
+		// larger one:
+		let m = maxInt;
+		for (const currentValue of input) {
+			if (currentValue >= n && currentValue < m) {
+				m = currentValue;
+			}
+		}
+
+		// Increase `delta` enough to advance the decoder's <n,i> state to <m,0>,
+		// but guard against overflow.
+		const handledCPCountPlusOne = handledCPCount + 1;
+		if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) {
+			error('overflow');
+		}
+
+		delta += (m - n) * handledCPCountPlusOne;
+		n = m;
+
+		for (const currentValue of input) {
+			if (currentValue < n && ++delta > maxInt) {
+				error('overflow');
+			}
+			if (currentValue === n) {
+				// Represent delta as a generalized variable-length integer.
+				let q = delta;
+				for (let k = base; /* no condition */; k += base) {
+					const t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);
+					if (q < t) {
+						break;
+					}
+					const qMinusT = q - t;
+					const baseMinusT = base - t;
+					output.push(
+						stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0))
+					);
+					q = floor(qMinusT / baseMinusT);
+				}
+
+				output.push(stringFromCharCode(digitToBasic(q, 0)));
+				bias = adapt(delta, handledCPCountPlusOne, handledCPCount === basicLength);
+				delta = 0;
+				++handledCPCount;
+			}
+		}
+
+		++delta;
+		++n;
+
+	}
+	return output.join('');
+};
+
+/**
+ * Converts a Punycode string representing a domain name or an email address
+ * to Unicode. Only the Punycoded parts of the input will be converted, i.e.
+ * it doesn't matter if you call it on a string that has already been
+ * converted to Unicode.
+ * @memberOf punycode
+ * @param {String} input The Punycoded domain name or email address to
+ * convert to Unicode.
+ * @returns {String} The Unicode representation of the given Punycode
+ * string.
+ */
+const toUnicode = function(input) {
+	return mapDomain(input, function(string) {
+		return regexPunycode.test(string)
+			? decode(string.slice(4).toLowerCase())
+			: string;
+	});
+};
+
+/**
+ * Converts a Unicode string representing a domain name or an email address to
+ * Punycode. Only the non-ASCII parts of the domain name will be converted,
+ * i.e. it doesn't matter if you call it with a domain that's already in
+ * ASCII.
+ * @memberOf punycode
+ * @param {String} input The domain name or email address to convert, as a
+ * Unicode string.
+ * @returns {String} The Punycode representation of the given domain name or
+ * email address.
+ */
+const toASCII = function(input) {
+	return mapDomain(input, function(string) {
+		return regexNonASCII.test(string)
+			? 'xn--' + encode(string)
+			: string;
+	});
+};
+
+/*--------------------------------------------------------------------------*/
+
+/** Define the public API */
+const punycode = {
+	/**
+	 * A string representing the current Punycode.js version number.
+	 * @memberOf punycode
+	 * @type String
+	 */
+	'version': '2.3.1',
+	/**
+	 * An object of methods to convert from JavaScript's internal character
+	 * representation (UCS-2) to Unicode code points, and back.
+	 * @see <https://mathiasbynens.be/notes/javascript-encoding>
+	 * @memberOf punycode
+	 * @type Object
+	 */
+	'ucs2': {
+		'decode': ucs2decode,
+		'encode': ucs2encode
+	},
+	'decode': decode,
+	'encode': encode,
+	'toASCII': toASCII,
+	'toUnicode': toUnicode
+};
+
+export { ucs2decode, ucs2encode, decode, encode, toASCII, toUnicode };
+export default punycode;
diff --git a/backend/node_modules/punycode/punycode.js b/backend/node_modules/punycode/punycode.js
new file mode 100644
index 0000000..a1ef251
--- /dev/null
+++ b/backend/node_modules/punycode/punycode.js
@@ -0,0 +1,443 @@
+'use strict';
+
+/** Highest positive signed 32-bit float value */
+const maxInt = 2147483647; // aka. 0x7FFFFFFF or 2^31-1
+
+/** Bootstring parameters */
+const base = 36;
+const tMin = 1;
+const tMax = 26;
+const skew = 38;
+const damp = 700;
+const initialBias = 72;
+const initialN = 128; // 0x80
+const delimiter = '-'; // '\x2D'
+
+/** Regular expressions */
+const regexPunycode = /^xn--/;
+const regexNonASCII = /[^\0-\x7F]/; // Note: U+007F DEL is excluded too.
+const regexSeparators = /[\x2E\u3002\uFF0E\uFF61]/g; // RFC 3490 separators
+
+/** Error messages */
+const errors = {
+	'overflow': 'Overflow: input needs wider integers to process',
+	'not-basic': 'Illegal input >= 0x80 (not a basic code point)',
+	'invalid-input': 'Invalid input'
+};
+
+/** Convenience shortcuts */
+const baseMinusTMin = base - tMin;
+const floor = Math.floor;
+const stringFromCharCode = String.fromCharCode;
+
+/*--------------------------------------------------------------------------*/
+
+/**
+ * A generic error utility function.
+ * @private
+ * @param {String} type The error type.
+ * @returns {Error} Throws a `RangeError` with the applicable error message.
+ */
+function error(type) {
+	throw new RangeError(errors[type]);
+}
+
+/**
+ * A generic `Array#map` utility function.
+ * @private
+ * @param {Array} array The array to iterate over.
+ * @param {Function} callback The function that gets called for every array
+ * item.
+ * @returns {Array} A new array of values returned by the callback function.
+ */
+function map(array, callback) {
+	const result = [];
+	let length = array.length;
+	while (length--) {
+		result[length] = callback(array[length]);
+	}
+	return result;
+}
+
+/**
+ * A simple `Array#map`-like wrapper to work with domain name strings or email
+ * addresses.
+ * @private
+ * @param {String} domain The domain name or email address.
+ * @param {Function} callback The function that gets called for every
+ * character.
+ * @returns {String} A new string of characters returned by the callback
+ * function.
+ */
+function mapDomain(domain, callback) {
+	const parts = domain.split('@');
+	let result = '';
+	if (parts.length > 1) {
+		// In email addresses, only the domain name should be punycoded. Leave
+		// the local part (i.e. everything up to `@`) intact.
+		result = parts[0] + '@';
+		domain = parts[1];
+	}
+	// Avoid `split(regex)` for IE8 compatibility. See #17.
+	domain = domain.replace(regexSeparators, '\x2E');
+	const labels = domain.split('.');
+	const encoded = map(labels, callback).join('.');
+	return result + encoded;
+}
+
+/**
+ * Creates an array containing the numeric code points of each Unicode
+ * character in the string. While JavaScript uses UCS-2 internally,
+ * this function will convert a pair of surrogate halves (each of which
+ * UCS-2 exposes as separate characters) into a single code point,
+ * matching UTF-16.
+ * @see `punycode.ucs2.encode`
+ * @see <https://mathiasbynens.be/notes/javascript-encoding>
+ * @memberOf punycode.ucs2
+ * @name decode
+ * @param {String} string The Unicode input string (UCS-2).
+ * @returns {Array} The new array of code points.
+ */
+function ucs2decode(string) {
+	const output = [];
+	let counter = 0;
+	const length = string.length;
+	while (counter < length) {
+		const value = string.charCodeAt(counter++);
+		if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
+			// It's a high surrogate, and there is a next character.
+			const extra = string.charCodeAt(counter++);
+			if ((extra & 0xFC00) == 0xDC00) { // Low surrogate.
+				output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
+			} else {
+				// It's an unmatched surrogate; only append this code unit, in case the
+				// next code unit is the high surrogate of a surrogate pair.
+				output.push(value);
+				counter--;
+			}
+		} else {
+			output.push(value);
+		}
+	}
+	return output;
+}
+
+/**
+ * Creates a string based on an array of numeric code points.
+ * @see `punycode.ucs2.decode`
+ * @memberOf punycode.ucs2
+ * @name encode
+ * @param {Array} codePoints The array of numeric code points.
+ * @returns {String} The new Unicode string (UCS-2).
+ */
+const ucs2encode = codePoints => String.fromCodePoint(...codePoints);
+
+/**
+ * Converts a basic code point into a digit/integer.
+ * @see `digitToBasic()`
+ * @private
+ * @param {Number} codePoint The basic numeric code point value.
+ * @returns {Number} The numeric value of a basic code point (for use in
+ * representing integers) in the range `0` to `base - 1`, or `base` if
+ * the code point does not represent a value.
+ */
+const basicToDigit = function(codePoint) {
+	if (codePoint >= 0x30 && codePoint < 0x3A) {
+		return 26 + (codePoint - 0x30);
+	}
+	if (codePoint >= 0x41 && codePoint < 0x5B) {
+		return codePoint - 0x41;
+	}
+	if (codePoint >= 0x61 && codePoint < 0x7B) {
+		return codePoint - 0x61;
+	}
+	return base;
+};
+
+/**
+ * Converts a digit/integer into a basic code point.
+ * @see `basicToDigit()`
+ * @private
+ * @param {Number} digit The numeric value of a basic code point.
+ * @returns {Number} The basic code point whose value (when used for
+ * representing integers) is `digit`, which needs to be in the range
+ * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is
+ * used; else, the lowercase form is used. The behavior is undefined
+ * if `flag` is non-zero and `digit` has no uppercase form.
+ */
+const digitToBasic = function(digit, flag) {
+	//  0..25 map to ASCII a..z or A..Z
+	// 26..35 map to ASCII 0..9
+	return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5);
+};
+
+/**
+ * Bias adaptation function as per section 3.4 of RFC 3492.
+ * https://tools.ietf.org/html/rfc3492#section-3.4
+ * @private
+ */
+const adapt = function(delta, numPoints, firstTime) {
+	let k = 0;
+	delta = firstTime ? floor(delta / damp) : delta >> 1;
+	delta += floor(delta / numPoints);
+	for (/* no initialization */; delta > baseMinusTMin * tMax >> 1; k += base) {
+		delta = floor(delta / baseMinusTMin);
+	}
+	return floor(k + (baseMinusTMin + 1) * delta / (delta + skew));
+};
+
+/**
+ * Converts a Punycode string of ASCII-only symbols to a string of Unicode
+ * symbols.
+ * @memberOf punycode
+ * @param {String} input The Punycode string of ASCII-only symbols.
+ * @returns {String} The resulting string of Unicode symbols.
+ */
+const decode = function(input) {
+	// Don't use UCS-2.
+	const output = [];
+	const inputLength = input.length;
+	let i = 0;
+	let n = initialN;
+	let bias = initialBias;
+
+	// Handle the basic code points: let `basic` be the number of input code
+	// points before the last delimiter, or `0` if there is none, then copy
+	// the first basic code points to the output.
+
+	let basic = input.lastIndexOf(delimiter);
+	if (basic < 0) {
+		basic = 0;
+	}
+
+	for (let j = 0; j < basic; ++j) {
+		// if it's not a basic code point
+		if (input.charCodeAt(j) >= 0x80) {
+			error('not-basic');
+		}
+		output.push(input.charCodeAt(j));
+	}
+
+	// Main decoding loop: start just after the last delimiter if any basic code
+	// points were copied; start at the beginning otherwise.
+
+	for (let index = basic > 0 ? basic + 1 : 0; index < inputLength; /* no final expression */) {
+
+		// `index` is the index of the next character to be consumed.
+		// Decode a generalized variable-length integer into `delta`,
+		// which gets added to `i`. The overflow checking is easier
+		// if we increase `i` as we go, then subtract off its starting
+		// value at the end to obtain `delta`.
+		const oldi = i;
+		for (let w = 1, k = base; /* no condition */; k += base) {
+
+			if (index >= inputLength) {
+				error('invalid-input');
+			}
+
+			const digit = basicToDigit(input.charCodeAt(index++));
+
+			if (digit >= base) {
+				error('invalid-input');
+			}
+			if (digit > floor((maxInt - i) / w)) {
+				error('overflow');
+			}
+
+			i += digit * w;
+			const t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);
+
+			if (digit < t) {
+				break;
+			}
+
+			const baseMinusT = base - t;
+			if (w > floor(maxInt / baseMinusT)) {
+				error('overflow');
+			}
+
+			w *= baseMinusT;
+
+		}
+
+		const out = output.length + 1;
+		bias = adapt(i - oldi, out, oldi == 0);
+
+		// `i` was supposed to wrap around from `out` to `0`,
+		// incrementing `n` each time, so we'll fix that now:
+		if (floor(i / out) > maxInt - n) {
+			error('overflow');
+		}
+
+		n += floor(i / out);
+		i %= out;
+
+		// Insert `n` at position `i` of the output.
+		output.splice(i++, 0, n);
+
+	}
+
+	return String.fromCodePoint(...output);
+};
+
+/**
+ * Converts a string of Unicode symbols (e.g. a domain name label) to a
+ * Punycode string of ASCII-only symbols.
+ * @memberOf punycode
+ * @param {String} input The string of Unicode symbols.
+ * @returns {String} The resulting Punycode string of ASCII-only symbols.
+ */
+const encode = function(input) {
+	const output = [];
+
+	// Convert the input in UCS-2 to an array of Unicode code points.
+	input = ucs2decode(input);
+
+	// Cache the length.
+	const inputLength = input.length;
+
+	// Initialize the state.
+	let n = initialN;
+	let delta = 0;
+	let bias = initialBias;
+
+	// Handle the basic code points.
+	for (const currentValue of input) {
+		if (currentValue < 0x80) {
+			output.push(stringFromCharCode(currentValue));
+		}
+	}
+
+	const basicLength = output.length;
+	let handledCPCount = basicLength;
+
+	// `handledCPCount` is the number of code points that have been handled;
+	// `basicLength` is the number of basic code points.
+
+	// Finish the basic string with a delimiter unless it's empty.
+	if (basicLength) {
+		output.push(delimiter);
+	}
+
+	// Main encoding loop:
+	while (handledCPCount < inputLength) {
+
+		// All non-basic code points < n have been handled already. Find the next
+		// larger one:
+		let m = maxInt;
+		for (const currentValue of input) {
+			if (currentValue >= n && currentValue < m) {
+				m = currentValue;
+			}
+		}
+
+		// Increase `delta` enough to advance the decoder's <n,i> state to <m,0>,
+		// but guard against overflow.
+		const handledCPCountPlusOne = handledCPCount + 1;
+		if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) {
+			error('overflow');
+		}
+
+		delta += (m - n) * handledCPCountPlusOne;
+		n = m;
+
+		for (const currentValue of input) {
+			if (currentValue < n && ++delta > maxInt) {
+				error('overflow');
+			}
+			if (currentValue === n) {
+				// Represent delta as a generalized variable-length integer.
+				let q = delta;
+				for (let k = base; /* no condition */; k += base) {
+					const t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);
+					if (q < t) {
+						break;
+					}
+					const qMinusT = q - t;
+					const baseMinusT = base - t;
+					output.push(
+						stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0))
+					);
+					q = floor(qMinusT / baseMinusT);
+				}
+
+				output.push(stringFromCharCode(digitToBasic(q, 0)));
+				bias = adapt(delta, handledCPCountPlusOne, handledCPCount === basicLength);
+				delta = 0;
+				++handledCPCount;
+			}
+		}
+
+		++delta;
+		++n;
+
+	}
+	return output.join('');
+};
+
+/**
+ * Converts a Punycode string representing a domain name or an email address
+ * to Unicode. Only the Punycoded parts of the input will be converted, i.e.
+ * it doesn't matter if you call it on a string that has already been
+ * converted to Unicode.
+ * @memberOf punycode
+ * @param {String} input The Punycoded domain name or email address to
+ * convert to Unicode.
+ * @returns {String} The Unicode representation of the given Punycode
+ * string.
+ */
+const toUnicode = function(input) {
+	return mapDomain(input, function(string) {
+		return regexPunycode.test(string)
+			? decode(string.slice(4).toLowerCase())
+			: string;
+	});
+};
+
+/**
+ * Converts a Unicode string representing a domain name or an email address to
+ * Punycode. Only the non-ASCII parts of the domain name will be converted,
+ * i.e. it doesn't matter if you call it with a domain that's already in
+ * ASCII.
+ * @memberOf punycode
+ * @param {String} input The domain name or email address to convert, as a
+ * Unicode string.
+ * @returns {String} The Punycode representation of the given domain name or
+ * email address.
+ */
+const toASCII = function(input) {
+	return mapDomain(input, function(string) {
+		return regexNonASCII.test(string)
+			? 'xn--' + encode(string)
+			: string;
+	});
+};
+
+/*--------------------------------------------------------------------------*/
+
+/** Define the public API */
+const punycode = {
+	/**
+	 * A string representing the current Punycode.js version number.
+	 * @memberOf punycode
+	 * @type String
+	 */
+	'version': '2.3.1',
+	/**
+	 * An object of methods to convert from JavaScript's internal character
+	 * representation (UCS-2) to Unicode code points, and back.
+	 * @see <https://mathiasbynens.be/notes/javascript-encoding>
+	 * @memberOf punycode
+	 * @type Object
+	 */
+	'ucs2': {
+		'decode': ucs2decode,
+		'encode': ucs2encode
+	},
+	'decode': decode,
+	'encode': encode,
+	'toASCII': toASCII,
+	'toUnicode': toUnicode
+};
+
+module.exports = punycode;
diff --git a/backend/node_modules/qs/.editorconfig b/backend/node_modules/qs/.editorconfig
new file mode 100644
index 0000000..6adecfb
--- /dev/null
+++ b/backend/node_modules/qs/.editorconfig
@@ -0,0 +1,46 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+max_line_length = 160
+quote_type = single
+
+[test/*]
+max_line_length = off
+
+[LICENSE.md]
+indent_size = off
+
+[*.md]
+max_line_length = off
+
+[*.json]
+max_line_length = off
+
+[Makefile]
+max_line_length = off
+
+[CHANGELOG.md]
+indent_style = space
+indent_size = 2
+
+[LICENSE]
+indent_size = 2
+max_line_length = off
+
+[coverage/**/*]
+indent_size = off
+indent_style = off
+indent = off
+max_line_length = off
+
+[.nycrc]
+indent_style = tab
+
+[tea.yaml]
+indent_size = 2
diff --git a/backend/node_modules/qs/.eslintrc b/backend/node_modules/qs/.eslintrc
new file mode 100644
index 0000000..b692761
--- /dev/null
+++ b/backend/node_modules/qs/.eslintrc
@@ -0,0 +1,38 @@
+{
+    "root": true,
+
+    "extends": "@ljharb",
+
+    "ignorePatterns": [
+        "dist/",
+    ],
+
+    "rules": {
+        "complexity": 0,
+        "consistent-return": 1,
+        "func-name-matching": 0,
+        "id-length": [2, { "min": 1, "max": 25, "properties": "never" }],
+        "indent": [2, 4],
+        "max-lines-per-function": [2, { "max": 150 }],
+        "max-params": [2, 18],
+        "max-statements": [2, 100],
+        "multiline-comment-style": 0,
+        "no-continue": 1,
+        "no-magic-numbers": 0,
+        "no-restricted-syntax": [2, "BreakStatement", "DebuggerStatement", "ForInStatement", "LabeledStatement", "WithStatement"],
+    },
+
+    "overrides": [
+        {
+            "files": "test/**",
+            "rules": {
+                "function-paren-newline": 0,
+                "max-lines-per-function": 0,
+                "max-statements": 0,
+                "no-buffer-constructor": 0,
+                "no-extend-native": 0,
+                "no-throw-literal": 0,
+            },
+        },
+    ],
+}
diff --git a/backend/node_modules/qs/.github/FUNDING.yml b/backend/node_modules/qs/.github/FUNDING.yml
new file mode 100644
index 0000000..0355f4f
--- /dev/null
+++ b/backend/node_modules/qs/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/qs
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with a single custom sponsorship URL
diff --git a/backend/node_modules/qs/.nycrc b/backend/node_modules/qs/.nycrc
new file mode 100644
index 0000000..1d57cab
--- /dev/null
+++ b/backend/node_modules/qs/.nycrc
@@ -0,0 +1,13 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"lines": 86,
+	"statements": 85.93,
+	"functions": 82.43,
+	"branches": 76.06,
+	"exclude": [
+		"coverage",
+		"dist"
+	]
+}
diff --git a/backend/node_modules/qs/CHANGELOG.md b/backend/node_modules/qs/CHANGELOG.md
new file mode 100644
index 0000000..02a6b50
--- /dev/null
+++ b/backend/node_modules/qs/CHANGELOG.md
@@ -0,0 +1,600 @@
+## **6.13.0**
+- [New] `parse`: add `strictDepth` option (#511)
+- [Tests] use `npm audit` instead of `aud`
+
+## **6.12.3**
+- [Fix] `parse`: properly account for `strictNullHandling` when `allowEmptyArrays`
+- [meta] fix changelog indentation
+
+## **6.12.2**
+- [Fix] `parse`: parse encoded square brackets (#506)
+- [readme] add CII best practices badge
+
+## **6.12.1**
+- [Fix] `parse`: Disable `decodeDotInKeys` by default to restore previous behavior (#501)
+- [Performance] `utils`: Optimize performance under large data volumes, reduce memory usage, and speed up processing (#502)
+- [Refactor] `utils`: use `+=`
+- [Tests] increase coverage
+
+## **6.12.0**
+
+- [New] `parse`/`stringify`: add `decodeDotInKeys`/`encodeDotKeys` options (#488)
+- [New] `parse`: add `duplicates` option
+- [New] `parse`/`stringify`: add `allowEmptyArrays` option to allow [] in object values (#487)
+- [Refactor] `parse`/`stringify`: move allowDots config logic to its own variable
+- [Refactor] `stringify`: move option-handling code into `normalizeStringifyOptions`
+- [readme] update readme, add logos (#484)
+- [readme] `stringify`: clarify default `arrayFormat` behavior
+- [readme] fix line wrapping
+- [readme] remove dead badges
+- [Deps] update `side-channel`
+- [meta] make the dist build 50% smaller
+- [meta] add `sideEffects` flag
+- [meta] run build in prepack, not prepublish
+- [Tests] `parse`: remove useless tests; add coverage
+- [Tests] `stringify`: increase coverage
+- [Tests] use `mock-property`
+- [Tests] `stringify`: improve coverage
+- [Dev Deps] update `@ljharb/eslint-config `, `aud`, `has-override-mistake`, `has-property-descriptors`, `mock-property`, `npmignore`, `object-inspect`, `tape`
+- [Dev Deps] pin `glob`, since v10.3.8+ requires a broken `jackspeak`
+- [Dev Deps] pin `jackspeak` since 2.1.2+ depends on npm aliases, which kill the install process in npm < 6
+
+## **6.11.2**
+- [Fix] `parse`: Fix parsing when the global Object prototype is frozen (#473)
+- [Tests] add passing test cases with empty keys (#473)
+
+## **6.11.1**
+- [Fix] `stringify`: encode comma values more consistently (#463)
+- [readme] add usage of `filter` option for injecting custom serialization, i.e. of custom types (#447)
+- [meta] remove extraneous code backticks (#457)
+- [meta] fix changelog markdown
+- [actions] update checkout action
+- [actions] restrict action permissions
+- [Dev Deps] update `@ljharb/eslint-config`, `aud`, `object-inspect`, `tape`
+
+## **6.11.0**
+- [New] [Fix] `stringify`: revert 0e903c0; add `commaRoundTrip` option (#442)
+- [readme] fix version badge
+
+## **6.10.5**
+- [Fix] `stringify`: with `arrayFormat: comma`, properly include an explicit `[]` on a single-item array (#434)
+
+## **6.10.4**
+- [Fix] `stringify`: with `arrayFormat: comma`, include an explicit `[]` on a single-item array (#441)
+- [meta] use `npmignore` to autogenerate an npmignore file
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `has-symbol`, `object-inspect`, `tape`
+
+## **6.10.3**
+- [Fix] `parse`: ignore `__proto__` keys (#428)
+- [Robustness] `stringify`: avoid relying on a global `undefined` (#427)
+- [actions] reuse common workflows
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `object-inspect`, `tape`
+
+## **6.10.2**
+- [Fix] `stringify`: actually fix cyclic references (#426)
+- [Fix] `stringify`: avoid encoding arrayformat comma when `encodeValuesOnly = true` (#424)
+- [readme] remove travis badge; add github actions/codecov badges; update URLs
+- [Docs] add note and links for coercing primitive values (#408)
+- [actions] update codecov uploader
+- [actions] update workflows
+- [Tests] clean up stringify tests slightly
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `object-inspect`, `safe-publish-latest`, `tape`
+
+## **6.10.1**
+- [Fix] `stringify`: avoid exception on repeated object values (#402)
+
+## **6.10.0**
+- [New] `stringify`: throw on cycles, instead of an infinite loop (#395, #394, #393)
+- [New] `parse`: add `allowSparse` option for collapsing arrays with missing indices (#312)
+- [meta] fix README.md (#399)
+- [meta] only run `npm run dist` in publish, not install
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `has-symbols`, `tape`
+- [Tests] fix tests on node v0.6
+- [Tests] use `ljharb/actions/node/install` instead of `ljharb/actions/node/run`
+- [Tests] Revert "[meta] ignore eclint transitive audit warning"
+
+## **6.9.7**
+- [Fix] `parse`: ignore `__proto__` keys (#428)
+- [Fix] `stringify`: avoid encoding arrayformat comma when `encodeValuesOnly = true` (#424)
+- [Robustness] `stringify`: avoid relying on a global `undefined` (#427)
+- [readme] remove travis badge; add github actions/codecov badges; update URLs
+- [Docs] add note and links for coercing primitive values (#408)
+- [Tests] clean up stringify tests slightly
+- [meta] fix README.md (#399)
+- Revert "[meta] ignore eclint transitive audit warning"
+- [actions] backport actions from main
+- [Dev Deps] backport updates from main
+
+## **6.9.6**
+- [Fix] restore `dist` dir; mistakenly removed in d4f6c32
+
+## **6.9.5**
+- [Fix] `stringify`: do not encode parens for RFC1738
+- [Fix] `stringify`: fix arrayFormat comma with empty array/objects (#350)
+- [Refactor] `format`: remove `util.assign` call
+- [meta] add "Allow Edits" workflow; update rebase workflow
+- [actions] switch Automatic Rebase workflow to `pull_request_target` event
+- [Tests] `stringify`: add tests for #378
+- [Tests] migrate tests to Github Actions
+- [Tests] run `nyc` on all tests; use `tape` runner
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `browserify`, `mkdirp`, `object-inspect`, `tape`; add `aud`
+
+## **6.9.4**
+- [Fix] `stringify`: when `arrayFormat` is `comma`, respect `serializeDate` (#364)
+- [Refactor] `stringify`: reduce branching (part of #350)
+- [Refactor] move `maybeMap` to `utils`
+- [Dev Deps] update `browserify`, `tape`
+
+## **6.9.3**
+- [Fix] proper comma parsing of URL-encoded commas (#361)
+- [Fix] parses comma delimited array while having percent-encoded comma treated as normal text (#336)
+
+## **6.9.2**
+- [Fix] `parse`: Fix parsing array from object with `comma` true (#359)
+- [Fix] `parse`: throw a TypeError instead of an Error for bad charset (#349)
+- [meta] ignore eclint transitive audit warning
+- [meta] fix indentation in package.json
+- [meta] add tidelift marketing copy
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `object-inspect`, `has-symbols`, `tape`, `mkdirp`, `iconv-lite`
+- [actions] add automatic rebasing / merge commit blocking
+
+## **6.9.1**
+- [Fix] `parse`: with comma true, handle field that holds an array of arrays (#335)
+- [Fix] `parse`: with comma true, do not split non-string values (#334)
+- [meta] add `funding` field
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`
+- [Tests] use shared travis-ci config
+
+## **6.9.0**
+- [New] `parse`/`stringify`: Pass extra key/value argument to `decoder` (#333)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `evalmd`
+- [Tests] `parse`: add passing `arrayFormat` tests
+- [Tests] add `posttest` using `npx aud` to run `npm audit` without a lockfile
+- [Tests] up to `node` `v12.10`, `v11.15`, `v10.16`, `v8.16`
+- [Tests] `Buffer.from` in node v5.0-v5.9 and v4.0-v4.4 requires a TypedArray
+
+## **6.8.3**
+- [Fix] `parse`: ignore `__proto__` keys (#428)
+- [Robustness] `stringify`: avoid relying on a global `undefined` (#427)
+- [Fix] `stringify`: avoid encoding arrayformat comma when `encodeValuesOnly = true` (#424)
+- [readme] remove travis badge; add github actions/codecov badges; update URLs
+- [Tests] clean up stringify tests slightly
+- [Docs] add note and links for coercing primitive values (#408)
+- [meta] fix README.md (#399)
+- [actions] backport actions from main
+- [Dev Deps] backport updates from main
+- [Refactor] `stringify`: reduce branching
+- [meta] do not publish workflow files
+
+## **6.8.2**
+- [Fix] proper comma parsing of URL-encoded commas (#361)
+- [Fix] parses comma delimited array while having percent-encoded comma treated as normal text (#336)
+
+## **6.8.1**
+- [Fix] `parse`: Fix parsing array from object with `comma` true (#359)
+- [Fix] `parse`: throw a TypeError instead of an Error for bad charset (#349)
+- [Fix] `parse`: with comma true, handle field that holds an array of arrays (#335)
+- [fix] `parse`: with comma true, do not split non-string values (#334)
+- [meta] add tidelift marketing copy
+- [meta] add `funding` field
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `tape`, `safe-publish-latest`, `evalmd`, `has-symbols`, `iconv-lite`, `mkdirp`, `object-inspect`
+- [Tests] `parse`: add passing `arrayFormat` tests
+- [Tests] use shared travis-ci configs
+- [Tests] `Buffer.from` in node v5.0-v5.9 and v4.0-v4.4 requires a TypedArray
+- [actions] add automatic rebasing / merge commit blocking
+
+## **6.8.0**
+- [New] add `depth=false` to preserve the original key; [Fix] `depth=0` should preserve the original key (#326)
+- [New] [Fix] stringify symbols and bigints
+- [Fix] ensure node 0.12 can stringify Symbols
+- [Fix] fix for an impossible situation: when the formatter is called with a non-string value
+- [Refactor] `formats`: tiny bit of cleanup.
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `browserify`, `safe-publish-latest`, `iconv-lite`, `tape`
+- [Tests] add tests for `depth=0` and `depth=false` behavior, both current and intuitive/intended (#326)
+- [Tests] use `eclint` instead of `editorconfig-tools`
+- [docs] readme: add security note
+- [meta] add github sponsorship
+- [meta] add FUNDING.yml
+- [meta] Clean up license text so it’s properly detected as BSD-3-Clause
+
+## **6.7.3**
+- [Fix] `parse`: ignore `__proto__` keys (#428)
+- [Fix] `stringify`: avoid encoding arrayformat comma when `encodeValuesOnly = true` (#424)
+- [Robustness] `stringify`: avoid relying on a global `undefined` (#427)
+- [readme] remove travis badge; add github actions/codecov badges; update URLs
+- [Docs] add note and links for coercing primitive values (#408)
+- [meta] fix README.md (#399)
+- [meta] do not publish workflow files
+- [actions] backport actions from main
+- [Dev Deps] backport updates from main
+- [Tests] use `nyc` for coverage
+- [Tests] clean up stringify tests slightly
+
+## **6.7.2**
+- [Fix] proper comma parsing of URL-encoded commas (#361)
+- [Fix] parses comma delimited array while having percent-encoded comma treated as normal text (#336)
+
+## **6.7.1**
+- [Fix] `parse`: Fix parsing array from object with `comma` true (#359)
+- [Fix] `parse`: with comma true, handle field that holds an array of arrays (#335)
+- [fix] `parse`: with comma true, do not split non-string values (#334)
+- [Fix] `parse`: throw a TypeError instead of an Error for bad charset (#349)
+- [Fix] fix for an impossible situation: when the formatter is called with a non-string value
+- [Refactor] `formats`: tiny bit of cleanup.
+- readme: add security note
+- [meta] add tidelift marketing copy
+- [meta] add `funding` field
+- [meta] add FUNDING.yml
+- [meta] Clean up license text so it’s properly detected as BSD-3-Clause
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `tape`, `safe-publish-latest`, `evalmd`, `iconv-lite`, `mkdirp`, `object-inspect`, `browserify`
+- [Tests] `parse`: add passing `arrayFormat` tests
+- [Tests] use shared travis-ci configs
+- [Tests] `Buffer.from` in node v5.0-v5.9 and v4.0-v4.4 requires a TypedArray
+- [Tests] add tests for `depth=0` and `depth=false` behavior, both current and intuitive/intended
+- [Tests] use `eclint` instead of `editorconfig-tools`
+- [actions] add automatic rebasing / merge commit blocking
+
+## **6.7.0**
+- [New] `stringify`/`parse`: add `comma` as an `arrayFormat` option (#276, #219)
+- [Fix] correctly parse nested arrays (#212)
+- [Fix] `utils.merge`: avoid a crash with a null target and a truthy non-array source, also with an array source
+- [Robustness] `stringify`: cache `Object.prototype.hasOwnProperty`
+- [Refactor] `utils`: `isBuffer`: small tweak; add tests
+- [Refactor] use cached `Array.isArray`
+- [Refactor] `parse`/`stringify`: make a function to normalize the options
+- [Refactor] `utils`: reduce observable [[Get]]s
+- [Refactor] `stringify`/`utils`: cache `Array.isArray`
+- [Tests] always use `String(x)` over `x.toString()`
+- [Tests] fix Buffer tests to work in node < 4.5 and node < 5.10
+- [Tests] temporarily allow coverage to fail
+
+## **6.6.1**
+- [Fix] `parse`: ignore `__proto__` keys (#428)
+- [Fix] fix for an impossible situation: when the formatter is called with a non-string value
+- [Fix] `utils.merge`: avoid a crash with a null target and an array source
+- [Fix] `utils.merge`: avoid a crash with a null target and a truthy non-array source
+- [Fix] correctly parse nested arrays
+- [Robustness] `stringify`: avoid relying on a global `undefined` (#427)
+- [Robustness] `stringify`: cache `Object.prototype.hasOwnProperty`
+- [Refactor] `formats`: tiny bit of cleanup.
+- [Refactor] `utils`: `isBuffer`: small tweak; add tests
+- [Refactor]: `stringify`/`utils`: cache `Array.isArray`
+- [Refactor] `utils`: reduce observable [[Get]]s
+- [Refactor] use cached `Array.isArray`
+- [Refactor] `parse`/`stringify`: make a function to normalize the options
+- [readme] remove travis badge; add github actions/codecov badges; update URLs
+- [Docs] Clarify the need for "arrayLimit" option
+- [meta] fix README.md (#399)
+- [meta] do not publish workflow files
+- [meta] Clean up license text so it’s properly detected as BSD-3-Clause
+- [meta] add FUNDING.yml
+- [meta] Fixes typo in CHANGELOG.md
+- [actions] backport actions from main
+- [Tests] fix Buffer tests to work in node < 4.5 and node < 5.10
+- [Tests] always use `String(x)` over `x.toString()`
+- [Dev Deps] backport from main
+
+## **6.6.0**
+- [New] Add support for iso-8859-1, utf8 "sentinel" and numeric entities (#268)
+- [New] move two-value combine to a `utils` function (#189)
+- [Fix] `stringify`: fix a crash with `strictNullHandling` and a custom `filter`/`serializeDate` (#279)
+- [Fix] when `parseArrays` is false, properly handle keys ending in `[]` (#260)
+- [Fix] `stringify`: do not crash in an obscure combo of `interpretNumericEntities`, a bad custom `decoder`, & `iso-8859-1`
+- [Fix] `utils`: `merge`: fix crash when `source` is a truthy primitive & no options are provided
+- [refactor] `stringify`: Avoid arr = arr.concat(...), push to the existing instance (#269)
+- [Refactor] `parse`: only need to reassign the var once
+- [Refactor] `parse`/`stringify`: clean up `charset` options checking; fix defaults
+- [Refactor] add missing defaults
+- [Refactor] `parse`: one less `concat` call
+- [Refactor] `utils`: `compactQueue`: make it explicitly side-effecting
+- [Dev Deps] update `browserify`, `eslint`, `@ljharb/eslint-config`, `iconv-lite`, `safe-publish-latest`, `tape`
+- [Tests] up to `node` `v10.10`, `v9.11`, `v8.12`, `v6.14`, `v4.9`; pin included builds to LTS
+
+## **6.5.3**
+- [Fix] `parse`: ignore `__proto__` keys (#428)
+- [Fix] `utils.merge`: avoid a crash with a null target and a truthy non-array source
+- [Fix] correctly parse nested arrays
+- [Fix] `stringify`: fix a crash with `strictNullHandling` and a custom `filter`/`serializeDate` (#279)
+- [Fix] `utils`: `merge`: fix crash when `source` is a truthy primitive & no options are provided
+- [Fix] when `parseArrays` is false, properly handle keys ending in `[]`
+- [Fix] fix for an impossible situation: when the formatter is called with a non-string value
+- [Fix] `utils.merge`: avoid a crash with a null target and an array source
+- [Refactor] `utils`: reduce observable [[Get]]s
+- [Refactor] use cached `Array.isArray`
+- [Refactor] `stringify`: Avoid arr = arr.concat(...), push to the existing instance (#269)
+- [Refactor] `parse`: only need to reassign the var once
+- [Robustness] `stringify`: avoid relying on a global `undefined` (#427)
+- [readme] remove travis badge; add github actions/codecov badges; update URLs
+- [Docs] Clean up license text so it’s properly detected as BSD-3-Clause
+- [Docs] Clarify the need for "arrayLimit" option
+- [meta] fix README.md (#399)
+- [meta] add FUNDING.yml
+- [actions] backport actions from main
+- [Tests] always use `String(x)` over `x.toString()`
+- [Tests] remove nonexistent tape option
+- [Dev Deps] backport from main
+
+## **6.5.2**
+- [Fix] use `safer-buffer` instead of `Buffer` constructor
+- [Refactor] utils: `module.exports` one thing, instead of mutating `exports` (#230)
+- [Dev Deps] update `browserify`, `eslint`, `iconv-lite`, `safer-buffer`, `tape`, `browserify`
+
+## **6.5.1**
+- [Fix] Fix parsing & compacting very deep objects (#224)
+- [Refactor] name utils functions
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `tape`
+- [Tests] up to `node` `v8.4`; use `nvm install-latest-npm` so newer npm doesn’t break older node
+- [Tests] Use precise dist for Node.js 0.6 runtime (#225)
+- [Tests] make 0.6 required, now that it’s passing
+- [Tests] on `node` `v8.2`; fix npm on node 0.6
+
+## **6.5.0**
+- [New] add `utils.assign`
+- [New] pass default encoder/decoder to custom encoder/decoder functions (#206)
+- [New] `parse`/`stringify`: add `ignoreQueryPrefix`/`addQueryPrefix` options, respectively (#213)
+- [Fix] Handle stringifying empty objects with addQueryPrefix (#217)
+- [Fix] do not mutate `options` argument (#207)
+- [Refactor] `parse`: cache index to reuse in else statement (#182)
+- [Docs] add various badges to readme (#208)
+- [Dev Deps] update `eslint`, `browserify`, `iconv-lite`, `tape`
+- [Tests] up to `node` `v8.1`, `v7.10`, `v6.11`; npm v4.6 breaks on node < v1; npm v5+ breaks on node < v4
+- [Tests] add `editorconfig-tools`
+
+## **6.4.1**
+- [Fix] `parse`: ignore `__proto__` keys (#428)
+- [Fix] fix for an impossible situation: when the formatter is called with a non-string value
+- [Fix] use `safer-buffer` instead of `Buffer` constructor
+- [Fix] `utils.merge`: avoid a crash with a null target and an array source
+- [Fix] `utils.merge`: avoid a crash with a null target and a truthy non-array source
+- [Fix] `stringify`: fix a crash with `strictNullHandling` and a custom `filter`/`serializeDate` (#279)
+- [Fix] `utils`: `merge`: fix crash when `source` is a truthy primitive & no options are provided
+- [Fix] when `parseArrays` is false, properly handle keys ending in `[]`
+- [Robustness] `stringify`: avoid relying on a global `undefined` (#427)
+- [Refactor] use cached `Array.isArray`
+- [Refactor] `stringify`: Avoid arr = arr.concat(...), push to the existing instance (#269)
+- [readme] remove travis badge; add github actions/codecov badges; update URLs
+- [Docs] Clarify the need for "arrayLimit" option
+- [meta] fix README.md (#399)
+- [meta] Clean up license text so it’s properly detected as BSD-3-Clause
+- [meta] add FUNDING.yml
+- [actions] backport actions from main
+- [Tests] remove nonexistent tape option
+- [Dev Deps] backport from main
+
+## **6.4.0**
+- [New] `qs.stringify`: add `encodeValuesOnly` option
+- [Fix] follow `allowPrototypes` option during merge (#201, #201)
+- [Fix] support keys starting with brackets (#202, #200)
+- [Fix] chmod a-x
+- [Dev Deps] update `eslint`
+- [Tests] up to `node` `v7.7`, `v6.10`,` v4.8`; disable osx builds since they block linux builds
+- [eslint] reduce warnings
+
+## **6.3.3**
+- [Fix] `parse`: ignore `__proto__` keys (#428)
+- [Fix] fix for an impossible situation: when the formatter is called with a non-string value
+- [Fix] `utils.merge`: avoid a crash with a null target and an array source
+- [Fix] `utils.merge`: avoid a crash with a null target and a truthy non-array source
+- [Fix] `stringify`: fix a crash with `strictNullHandling` and a custom `filter`/`serializeDate` (#279)
+- [Fix] `utils`: `merge`: fix crash when `source` is a truthy primitive & no options are provided
+- [Fix] when `parseArrays` is false, properly handle keys ending in `[]`
+- [Robustness] `stringify`: avoid relying on a global `undefined` (#427)
+- [Refactor] use cached `Array.isArray`
+- [Refactor] `stringify`: Avoid arr = arr.concat(...), push to the existing instance (#269)
+- [Docs] Clarify the need for "arrayLimit" option
+- [meta] fix README.md (#399)
+- [meta] Clean up license text so it’s properly detected as BSD-3-Clause
+- [meta] add FUNDING.yml
+- [actions] backport actions from main
+- [Tests] use `safer-buffer` instead of `Buffer` constructor
+- [Tests] remove nonexistent tape option
+- [Dev Deps] backport from main
+
+## **6.3.2**
+- [Fix] follow `allowPrototypes` option during merge (#201, #200)
+- [Dev Deps] update `eslint`
+- [Fix] chmod a-x
+- [Fix] support keys starting with brackets (#202, #200)
+- [Tests] up to `node` `v7.7`, `v6.10`,` v4.8`; disable osx builds since they block linux builds
+
+## **6.3.1**
+- [Fix] ensure that `allowPrototypes: false` does not ever shadow Object.prototype properties (thanks, @snyk!)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `browserify`, `iconv-lite`, `qs-iconv`, `tape`
+- [Tests] on all node minors; improve test matrix
+- [Docs] document stringify option `allowDots` (#195)
+- [Docs] add empty object and array values example (#195)
+- [Docs] Fix minor inconsistency/typo (#192)
+- [Docs] document stringify option `sort` (#191)
+- [Refactor] `stringify`: throw faster with an invalid encoder
+- [Refactor] remove unnecessary escapes (#184)
+- Remove contributing.md, since `qs` is no longer part of `hapi` (#183)
+
+## **6.3.0**
+- [New] Add support for RFC 1738 (#174, #173)
+- [New] `stringify`: Add `serializeDate` option to customize Date serialization (#159)
+- [Fix] ensure `utils.merge` handles merging two arrays
+- [Refactor] only constructors should be capitalized
+- [Refactor] capitalized var names are for constructors only
+- [Refactor] avoid using a sparse array
+- [Robustness] `formats`: cache `String#replace`
+- [Dev Deps] update `browserify`, `eslint`, `@ljharb/eslint-config`; add `safe-publish-latest`
+- [Tests] up to `node` `v6.8`, `v4.6`; improve test matrix
+- [Tests] flesh out arrayLimit/arrayFormat tests (#107)
+- [Tests] skip Object.create tests when null objects are not available
+- [Tests] Turn on eslint for test files (#175)
+
+## **6.2.4**
+- [Fix] `parse`: ignore `__proto__` keys (#428)
+- [Fix] `utils.merge`: avoid a crash with a null target and an array source
+- [Fix] `utils.merge`: avoid a crash with a null target and a truthy non-array source
+- [Fix] `utils`: `merge`: fix crash when `source` is a truthy primitive & no options are provided
+- [Fix] when `parseArrays` is false, properly handle keys ending in `[]`
+- [Robustness] `stringify`: avoid relying on a global `undefined` (#427)
+- [Refactor] use cached `Array.isArray`
+- [Docs] Clarify the need for "arrayLimit" option
+- [meta] fix README.md (#399)
+- [meta] Clean up license text so it’s properly detected as BSD-3-Clause
+- [meta] add FUNDING.yml
+- [actions] backport actions from main
+- [Tests] use `safer-buffer` instead of `Buffer` constructor
+- [Tests] remove nonexistent tape option
+- [Dev Deps] backport from main
+
+## **6.2.3**
+- [Fix] follow `allowPrototypes` option during merge (#201, #200)
+- [Fix] chmod a-x
+- [Fix] support keys starting with brackets (#202, #200)
+- [Tests] up to `node` `v7.7`, `v6.10`,` v4.8`; disable osx builds since they block linux builds
+
+## **6.2.2**
+- [Fix] ensure that `allowPrototypes: false` does not ever shadow Object.prototype properties
+
+## **6.2.1**
+- [Fix] ensure `key[]=x&key[]&key[]=y` results in 3, not 2, values
+- [Refactor] Be explicit and use `Object.prototype.hasOwnProperty.call`
+- [Tests] remove `parallelshell` since it does not reliably report failures
+- [Tests] up to `node` `v6.3`, `v5.12`
+- [Dev Deps] update `tape`, `eslint`, `@ljharb/eslint-config`, `qs-iconv`
+
+## [**6.2.0**](https://github.com/ljharb/qs/issues?milestone=36&state=closed)
+- [New] pass Buffers to the encoder/decoder directly (#161)
+- [New] add "encoder" and "decoder" options, for custom param encoding/decoding (#160)
+- [Fix] fix compacting of nested sparse arrays (#150)
+
+## **6.1.2**
+- [Fix] follow `allowPrototypes` option during merge (#201, #200)
+- [Fix] chmod a-x
+- [Fix] support keys starting with brackets (#202, #200)
+- [Tests] up to `node` `v7.7`, `v6.10`,` v4.8`; disable osx builds since they block linux builds
+
+## **6.1.1**
+- [Fix] ensure that `allowPrototypes: false` does not ever shadow Object.prototype properties
+
+## [**6.1.0**](https://github.com/ljharb/qs/issues?milestone=35&state=closed)
+- [New] allowDots option for `stringify` (#151)
+- [Fix] "sort" option should work at a depth of 3 or more (#151)
+- [Fix] Restore `dist` directory; will be removed in v7 (#148)
+
+## **6.0.4**
+- [Fix] follow `allowPrototypes` option during merge (#201, #200)
+- [Fix] chmod a-x
+- [Fix] support keys starting with brackets (#202, #200)
+- [Tests] up to `node` `v7.7`, `v6.10`,` v4.8`; disable osx builds since they block linux builds
+
+## **6.0.3**
+- [Fix] ensure that `allowPrototypes: false` does not ever shadow Object.prototype properties
+- [Fix] Restore `dist` directory; will be removed in v7 (#148)
+
+## [**6.0.2**](https://github.com/ljharb/qs/issues?milestone=33&state=closed)
+- Revert ES6 requirement and restore support for node down to v0.8.
+
+## [**6.0.1**](https://github.com/ljharb/qs/issues?milestone=32&state=closed)
+- [**#127**](https://github.com/ljharb/qs/pull/127) Fix engines definition in package.json
+
+## [**6.0.0**](https://github.com/ljharb/qs/issues?milestone=31&state=closed)
+- [**#124**](https://github.com/ljharb/qs/issues/124) Use ES6 and drop support for node < v4
+
+## **5.2.1**
+- [Fix] ensure `key[]=x&key[]&key[]=y` results in 3, not 2, values
+
+## [**5.2.0**](https://github.com/ljharb/qs/issues?milestone=30&state=closed)
+- [**#64**](https://github.com/ljharb/qs/issues/64) Add option to sort object keys in the query string
+
+## [**5.1.0**](https://github.com/ljharb/qs/issues?milestone=29&state=closed)
+- [**#117**](https://github.com/ljharb/qs/issues/117) make URI encoding stringified results optional
+- [**#106**](https://github.com/ljharb/qs/issues/106) Add flag `skipNulls` to optionally skip null values in stringify
+
+## [**5.0.0**](https://github.com/ljharb/qs/issues?milestone=28&state=closed)
+- [**#114**](https://github.com/ljharb/qs/issues/114) default allowDots to false
+- [**#100**](https://github.com/ljharb/qs/issues/100) include dist to npm
+
+## [**4.0.0**](https://github.com/ljharb/qs/issues?milestone=26&state=closed)
+- [**#98**](https://github.com/ljharb/qs/issues/98) make returning plain objects and allowing prototype overwriting properties optional
+
+## [**3.1.0**](https://github.com/ljharb/qs/issues?milestone=24&state=closed)
+- [**#89**](https://github.com/ljharb/qs/issues/89) Add option to disable "Transform dot notation to bracket notation"
+
+## [**3.0.0**](https://github.com/ljharb/qs/issues?milestone=23&state=closed)
+- [**#80**](https://github.com/ljharb/qs/issues/80) qs.parse silently drops properties
+- [**#77**](https://github.com/ljharb/qs/issues/77) Perf boost
+- [**#60**](https://github.com/ljharb/qs/issues/60) Add explicit option to disable array parsing
+- [**#74**](https://github.com/ljharb/qs/issues/74) Bad parse when turning array into object
+- [**#81**](https://github.com/ljharb/qs/issues/81) Add a `filter` option
+- [**#68**](https://github.com/ljharb/qs/issues/68) Fixed issue with recursion and passing strings into objects.
+- [**#66**](https://github.com/ljharb/qs/issues/66) Add mixed array and object dot notation support Closes: #47
+- [**#76**](https://github.com/ljharb/qs/issues/76) RFC 3986
+- [**#85**](https://github.com/ljharb/qs/issues/85) No equal sign
+- [**#84**](https://github.com/ljharb/qs/issues/84) update license attribute
+
+## [**2.4.1**](https://github.com/ljharb/qs/issues?milestone=20&state=closed)
+- [**#73**](https://github.com/ljharb/qs/issues/73) Property 'hasOwnProperty' of object #<Object> is not a function
+
+## [**2.4.0**](https://github.com/ljharb/qs/issues?milestone=19&state=closed)
+- [**#70**](https://github.com/ljharb/qs/issues/70) Add arrayFormat option
+
+## [**2.3.3**](https://github.com/ljharb/qs/issues?milestone=18&state=closed)
+- [**#59**](https://github.com/ljharb/qs/issues/59) make sure array indexes are >= 0, closes #57
+- [**#58**](https://github.com/ljharb/qs/issues/58) make qs usable for browser loader
+
+## [**2.3.2**](https://github.com/ljharb/qs/issues?milestone=17&state=closed)
+- [**#55**](https://github.com/ljharb/qs/issues/55) allow merging a string into an object
+
+## [**2.3.1**](https://github.com/ljharb/qs/issues?milestone=16&state=closed)
+- [**#52**](https://github.com/ljharb/qs/issues/52) Return "undefined" and "false" instead of throwing "TypeError".
+
+## [**2.3.0**](https://github.com/ljharb/qs/issues?milestone=15&state=closed)
+- [**#50**](https://github.com/ljharb/qs/issues/50) add option to omit array indices, closes #46
+
+## [**2.2.5**](https://github.com/ljharb/qs/issues?milestone=14&state=closed)
+- [**#39**](https://github.com/ljharb/qs/issues/39) Is there an alternative to Buffer.isBuffer?
+- [**#49**](https://github.com/ljharb/qs/issues/49) refactor utils.merge, fixes #45
+- [**#41**](https://github.com/ljharb/qs/issues/41) avoid browserifying Buffer, for #39
+
+## [**2.2.4**](https://github.com/ljharb/qs/issues?milestone=13&state=closed)
+- [**#38**](https://github.com/ljharb/qs/issues/38) how to handle object keys beginning with a number
+
+## [**2.2.3**](https://github.com/ljharb/qs/issues?milestone=12&state=closed)
+- [**#37**](https://github.com/ljharb/qs/issues/37) parser discards first empty value in array
+- [**#36**](https://github.com/ljharb/qs/issues/36) Update to lab 4.x
+
+## [**2.2.2**](https://github.com/ljharb/qs/issues?milestone=11&state=closed)
+- [**#33**](https://github.com/ljharb/qs/issues/33) Error when plain object in a value
+- [**#34**](https://github.com/ljharb/qs/issues/34) use Object.prototype.hasOwnProperty.call instead of obj.hasOwnProperty
+- [**#24**](https://github.com/ljharb/qs/issues/24) Changelog? Semver?
+
+## [**2.2.1**](https://github.com/ljharb/qs/issues?milestone=10&state=closed)
+- [**#32**](https://github.com/ljharb/qs/issues/32) account for circular references properly, closes #31
+- [**#31**](https://github.com/ljharb/qs/issues/31) qs.parse stackoverflow on circular objects
+
+## [**2.2.0**](https://github.com/ljharb/qs/issues?milestone=9&state=closed)
+- [**#26**](https://github.com/ljharb/qs/issues/26) Don't use Buffer global if it's not present
+- [**#30**](https://github.com/ljharb/qs/issues/30) Bug when merging non-object values into arrays
+- [**#29**](https://github.com/ljharb/qs/issues/29) Don't call Utils.clone at the top of Utils.merge
+- [**#23**](https://github.com/ljharb/qs/issues/23) Ability to not limit parameters?
+
+## [**2.1.0**](https://github.com/ljharb/qs/issues?milestone=8&state=closed)
+- [**#22**](https://github.com/ljharb/qs/issues/22) Enable using a RegExp as delimiter
+
+## [**2.0.0**](https://github.com/ljharb/qs/issues?milestone=7&state=closed)
+- [**#18**](https://github.com/ljharb/qs/issues/18) Why is there arrayLimit?
+- [**#20**](https://github.com/ljharb/qs/issues/20) Configurable parametersLimit
+- [**#21**](https://github.com/ljharb/qs/issues/21) make all limits optional, for #18, for #20
+
+## [**1.2.2**](https://github.com/ljharb/qs/issues?milestone=6&state=closed)
+- [**#19**](https://github.com/ljharb/qs/issues/19) Don't overwrite null values
+
+## [**1.2.1**](https://github.com/ljharb/qs/issues?milestone=5&state=closed)
+- [**#16**](https://github.com/ljharb/qs/issues/16) ignore non-string delimiters
+- [**#15**](https://github.com/ljharb/qs/issues/15) Close code block
+
+## [**1.2.0**](https://github.com/ljharb/qs/issues?milestone=4&state=closed)
+- [**#12**](https://github.com/ljharb/qs/issues/12) Add optional delim argument
+- [**#13**](https://github.com/ljharb/qs/issues/13) fix #11: flattened keys in array are now correctly parsed
+
+## [**1.1.0**](https://github.com/ljharb/qs/issues?milestone=3&state=closed)
+- [**#7**](https://github.com/ljharb/qs/issues/7) Empty values of a POST array disappear after being submitted
+- [**#9**](https://github.com/ljharb/qs/issues/9) Should not omit equals signs (=) when value is null
+- [**#6**](https://github.com/ljharb/qs/issues/6) Minor grammar fix in README
+
+## [**1.0.2**](https://github.com/ljharb/qs/issues?milestone=2&state=closed)
+- [**#5**](https://github.com/ljharb/qs/issues/5) array holes incorrectly copied into object on large index
diff --git a/backend/node_modules/qs/LICENSE.md b/backend/node_modules/qs/LICENSE.md
new file mode 100644
index 0000000..fecf6b6
--- /dev/null
+++ b/backend/node_modules/qs/LICENSE.md
@@ -0,0 +1,29 @@
+BSD 3-Clause License
+
+Copyright (c) 2014, Nathan LaFreniere and other [contributors](https://github.com/ljharb/qs/graphs/contributors)
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its
+   contributors may be used to endorse or promote products derived from
+   this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/backend/node_modules/qs/README.md b/backend/node_modules/qs/README.md
new file mode 100644
index 0000000..1e0d9ad
--- /dev/null
+++ b/backend/node_modules/qs/README.md
@@ -0,0 +1,709 @@
+<p align="center">
+    <img alt="qs" src="./logos/banner_default.png" width="800" />
+</p>
+
+# qs <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+[![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/9058/badge)](https://bestpractices.coreinfrastructure.org/projects/9058)
+
+[![npm badge][npm-badge-png]][package-url]
+
+A querystring parsing and stringifying library with some added security.
+
+Lead Maintainer: [Jordan Harband](https://github.com/ljharb)
+
+The **qs** module was originally created and maintained by [TJ Holowaychuk](https://github.com/visionmedia/node-querystring).
+
+## Usage
+
+```javascript
+var qs = require('qs');
+var assert = require('assert');
+
+var obj = qs.parse('a=c');
+assert.deepEqual(obj, { a: 'c' });
+
+var str = qs.stringify(obj);
+assert.equal(str, 'a=c');
+```
+
+### Parsing Objects
+
+[](#preventEval)
+```javascript
+qs.parse(string, [options]);
+```
+
+**qs** allows you to create nested objects within your query strings, by surrounding the name of sub-keys with square brackets `[]`.
+For example, the string `'foo[bar]=baz'` converts to:
+
+```javascript
+assert.deepEqual(qs.parse('foo[bar]=baz'), {
+    foo: {
+        bar: 'baz'
+    }
+});
+```
+
+When using the `plainObjects` option the parsed value is returned as a null object, created via `Object.create(null)` and as such you should be aware that prototype methods will not exist on it and a user may set those names to whatever value they like:
+
+```javascript
+var nullObject = qs.parse('a[hasOwnProperty]=b', { plainObjects: true });
+assert.deepEqual(nullObject, { a: { hasOwnProperty: 'b' } });
+```
+
+By default parameters that would overwrite properties on the object prototype are ignored, if you wish to keep the data from those fields either use `plainObjects` as mentioned above, or set `allowPrototypes` to `true` which will allow user input to overwrite those properties.
+*WARNING* It is generally a bad idea to enable this option as it can cause problems when attempting to use the properties that have been overwritten.
+Always be careful with this option.
+
+```javascript
+var protoObject = qs.parse('a[hasOwnProperty]=b', { allowPrototypes: true });
+assert.deepEqual(protoObject, { a: { hasOwnProperty: 'b' } });
+```
+
+URI encoded strings work too:
+
+```javascript
+assert.deepEqual(qs.parse('a%5Bb%5D=c'), {
+    a: { b: 'c' }
+});
+```
+
+You can also nest your objects, like `'foo[bar][baz]=foobarbaz'`:
+
+```javascript
+assert.deepEqual(qs.parse('foo[bar][baz]=foobarbaz'), {
+    foo: {
+        bar: {
+            baz: 'foobarbaz'
+        }
+    }
+});
+```
+
+By default, when nesting objects **qs** will only parse up to 5 children deep.
+This means if you attempt to parse a string like `'a[b][c][d][e][f][g][h][i]=j'` your resulting object will be:
+
+```javascript
+var expected = {
+    a: {
+        b: {
+            c: {
+                d: {
+                    e: {
+                        f: {
+                            '[g][h][i]': 'j'
+                        }
+                    }
+                }
+            }
+        }
+    }
+};
+var string = 'a[b][c][d][e][f][g][h][i]=j';
+assert.deepEqual(qs.parse(string), expected);
+```
+
+This depth can be overridden by passing a `depth` option to `qs.parse(string, [options])`:
+
+```javascript
+var deep = qs.parse('a[b][c][d][e][f][g][h][i]=j', { depth: 1 });
+assert.deepEqual(deep, { a: { b: { '[c][d][e][f][g][h][i]': 'j' } } });
+```
+
+You can configure **qs** to throw an error when parsing nested input beyond this depth using the `strictDepth` option (defaulted to false):
+
+```javascript
+try {
+    qs.parse('a[b][c][d][e][f][g][h][i]=j', { depth: 1, strictDepth: true });
+} catch (err) {
+    assert(err instanceof RangeError);
+    assert.strictEqual(err.message, 'Input depth exceeded depth option of 1 and strictDepth is true');
+}
+```
+
+The depth limit helps mitigate abuse when **qs** is used to parse user input, and it is recommended to keep it a reasonably small number. The strictDepth option adds a layer of protection by throwing an error when the limit is exceeded, allowing you to catch and handle such cases.
+
+For similar reasons, by default **qs** will only parse up to 1000 parameters. This can be overridden by passing a `parameterLimit` option:
+
+```javascript
+var limited = qs.parse('a=b&c=d', { parameterLimit: 1 });
+assert.deepEqual(limited, { a: 'b' });
+```
+
+To bypass the leading question mark, use `ignoreQueryPrefix`:
+
+```javascript
+var prefixed = qs.parse('?a=b&c=d', { ignoreQueryPrefix: true });
+assert.deepEqual(prefixed, { a: 'b', c: 'd' });
+```
+
+An optional delimiter can also be passed:
+
+```javascript
+var delimited = qs.parse('a=b;c=d', { delimiter: ';' });
+assert.deepEqual(delimited, { a: 'b', c: 'd' });
+```
+
+Delimiters can be a regular expression too:
+
+```javascript
+var regexed = qs.parse('a=b;c=d,e=f', { delimiter: /[;,]/ });
+assert.deepEqual(regexed, { a: 'b', c: 'd', e: 'f' });
+```
+
+Option `allowDots` can be used to enable dot notation:
+
+```javascript
+var withDots = qs.parse('a.b=c', { allowDots: true });
+assert.deepEqual(withDots, { a: { b: 'c' } });
+```
+
+Option `decodeDotInKeys` can be used to decode dots in keys
+Note: it implies `allowDots`, so `parse` will error if you set `decodeDotInKeys` to `true`, and `allowDots` to `false`.
+
+```javascript
+var withDots = qs.parse('name%252Eobj.first=John&name%252Eobj.last=Doe', { decodeDotInKeys: true });
+assert.deepEqual(withDots, { 'name.obj': { first: 'John', last: 'Doe' }});
+```
+
+Option `allowEmptyArrays` can be used to allowing empty array values in object
+```javascript
+var withEmptyArrays = qs.parse('foo[]&bar=baz', { allowEmptyArrays: true });
+assert.deepEqual(withEmptyArrays, { foo: [], bar: 'baz' });
+```
+
+Option `duplicates` can be used to change the behavior when duplicate keys are encountered
+```javascript
+assert.deepEqual(qs.parse('foo=bar&foo=baz'), { foo: ['bar', 'baz'] });
+assert.deepEqual(qs.parse('foo=bar&foo=baz', { duplicates: 'combine' }), { foo: ['bar', 'baz'] });
+assert.deepEqual(qs.parse('foo=bar&foo=baz', { duplicates: 'first' }), { foo: 'bar' });
+assert.deepEqual(qs.parse('foo=bar&foo=baz', { duplicates: 'last' }), { foo: 'baz' });
+```
+
+If you have to deal with legacy browsers or services, there's also support for decoding percent-encoded octets as iso-8859-1:
+
+```javascript
+var oldCharset = qs.parse('a=%A7', { charset: 'iso-8859-1' });
+assert.deepEqual(oldCharset, { a: '§' });
+```
+
+Some services add an initial `utf8=✓` value to forms so that old Internet Explorer versions are more likely to submit the form as utf-8.
+Additionally, the server can check the value against wrong encodings of the checkmark character and detect that a query string or `application/x-www-form-urlencoded` body was *not* sent as utf-8, eg. if the form had an `accept-charset` parameter or the containing page had a different character set.
+
+**qs** supports this mechanism via the `charsetSentinel` option.
+If specified, the `utf8` parameter will be omitted from the returned object.
+It will be used to switch to `iso-8859-1`/`utf-8` mode depending on how the checkmark is encoded.
+
+**Important**: When you specify both the `charset` option and the `charsetSentinel` option, the `charset` will be overridden when the request contains a `utf8` parameter from which the actual charset can be deduced.
+In that sense the `charset` will behave as the default charset rather than the authoritative charset.
+
+```javascript
+var detectedAsUtf8 = qs.parse('utf8=%E2%9C%93&a=%C3%B8', {
+    charset: 'iso-8859-1',
+    charsetSentinel: true
+});
+assert.deepEqual(detectedAsUtf8, { a: 'ø' });
+
+// Browsers encode the checkmark as &#10003; when submitting as iso-8859-1:
+var detectedAsIso8859_1 = qs.parse('utf8=%26%2310003%3B&a=%F8', {
+    charset: 'utf-8',
+    charsetSentinel: true
+});
+assert.deepEqual(detectedAsIso8859_1, { a: 'ø' });
+```
+
+If you want to decode the `&#...;` syntax to the actual character, you can specify the `interpretNumericEntities` option as well:
+
+```javascript
+var detectedAsIso8859_1 = qs.parse('a=%26%239786%3B', {
+    charset: 'iso-8859-1',
+    interpretNumericEntities: true
+});
+assert.deepEqual(detectedAsIso8859_1, { a: '☺' });
+```
+
+It also works when the charset has been detected in `charsetSentinel` mode.
+
+### Parsing Arrays
+
+**qs** can also parse arrays using a similar `[]` notation:
+
+```javascript
+var withArray = qs.parse('a[]=b&a[]=c');
+assert.deepEqual(withArray, { a: ['b', 'c'] });
+```
+
+You may specify an index as well:
+
+```javascript
+var withIndexes = qs.parse('a[1]=c&a[0]=b');
+assert.deepEqual(withIndexes, { a: ['b', 'c'] });
+```
+
+Note that the only difference between an index in an array and a key in an object is that the value between the brackets must be a number to create an array.
+When creating arrays with specific indices, **qs** will compact a sparse array to only the existing values preserving their order:
+
+```javascript
+var noSparse = qs.parse('a[1]=b&a[15]=c');
+assert.deepEqual(noSparse, { a: ['b', 'c'] });
+```
+
+You may also use `allowSparse` option to parse sparse arrays:
+
+```javascript
+var sparseArray = qs.parse('a[1]=2&a[3]=5', { allowSparse: true });
+assert.deepEqual(sparseArray, { a: [, '2', , '5'] });
+```
+
+Note that an empty string is also a value, and will be preserved:
+
+```javascript
+var withEmptyString = qs.parse('a[]=&a[]=b');
+assert.deepEqual(withEmptyString, { a: ['', 'b'] });
+
+var withIndexedEmptyString = qs.parse('a[0]=b&a[1]=&a[2]=c');
+assert.deepEqual(withIndexedEmptyString, { a: ['b', '', 'c'] });
+```
+
+**qs** will also limit specifying indices in an array to a maximum index of `20`.
+Any array members with an index of greater than `20` will instead be converted to an object with the index as the key.
+This is needed to handle cases when someone sent, for example, `a[999999999]` and it will take significant time to iterate over this huge array.
+
+```javascript
+var withMaxIndex = qs.parse('a[100]=b');
+assert.deepEqual(withMaxIndex, { a: { '100': 'b' } });
+```
+
+This limit can be overridden by passing an `arrayLimit` option:
+
+```javascript
+var withArrayLimit = qs.parse('a[1]=b', { arrayLimit: 0 });
+assert.deepEqual(withArrayLimit, { a: { '1': 'b' } });
+```
+
+To disable array parsing entirely, set `parseArrays` to `false`.
+
+```javascript
+var noParsingArrays = qs.parse('a[]=b', { parseArrays: false });
+assert.deepEqual(noParsingArrays, { a: { '0': 'b' } });
+```
+
+If you mix notations, **qs** will merge the two items into an object:
+
+```javascript
+var mixedNotation = qs.parse('a[0]=b&a[b]=c');
+assert.deepEqual(mixedNotation, { a: { '0': 'b', b: 'c' } });
+```
+
+You can also create arrays of objects:
+
+```javascript
+var arraysOfObjects = qs.parse('a[][b]=c');
+assert.deepEqual(arraysOfObjects, { a: [{ b: 'c' }] });
+```
+
+Some people use comma to join array, **qs** can parse it:
+```javascript
+var arraysOfObjects = qs.parse('a=b,c', { comma: true })
+assert.deepEqual(arraysOfObjects, { a: ['b', 'c'] })
+```
+(_this cannot convert nested objects, such as `a={b:1},{c:d}`_)
+
+### Parsing primitive/scalar values (numbers, booleans, null, etc)
+
+By default, all values are parsed as strings.
+This behavior will not change and is explained in [issue #91](https://github.com/ljharb/qs/issues/91).
+
+```javascript
+var primitiveValues = qs.parse('a=15&b=true&c=null');
+assert.deepEqual(primitiveValues, { a: '15', b: 'true', c: 'null' });
+```
+
+If you wish to auto-convert values which look like numbers, booleans, and other values into their primitive counterparts, you can use the [query-types Express JS middleware](https://github.com/xpepermint/query-types) which will auto-convert all request query parameters.
+
+### Stringifying
+
+[](#preventEval)
+```javascript
+qs.stringify(object, [options]);
+```
+
+When stringifying, **qs** by default URI encodes output. Objects are stringified as you would expect:
+
+```javascript
+assert.equal(qs.stringify({ a: 'b' }), 'a=b');
+assert.equal(qs.stringify({ a: { b: 'c' } }), 'a%5Bb%5D=c');
+```
+
+This encoding can be disabled by setting the `encode` option to `false`:
+
+```javascript
+var unencoded = qs.stringify({ a: { b: 'c' } }, { encode: false });
+assert.equal(unencoded, 'a[b]=c');
+```
+
+Encoding can be disabled for keys by setting the `encodeValuesOnly` option to `true`:
+```javascript
+var encodedValues = qs.stringify(
+    { a: 'b', c: ['d', 'e=f'], f: [['g'], ['h']] },
+    { encodeValuesOnly: true }
+);
+assert.equal(encodedValues,'a=b&c[0]=d&c[1]=e%3Df&f[0][0]=g&f[1][0]=h');
+```
+
+This encoding can also be replaced by a custom encoding method set as `encoder` option:
+
+```javascript
+var encoded = qs.stringify({ a: { b: 'c' } }, { encoder: function (str) {
+    // Passed in values `a`, `b`, `c`
+    return // Return encoded string
+}})
+```
+
+_(Note: the `encoder` option does not apply if `encode` is `false`)_
+
+Analogue to the `encoder` there is a `decoder` option for `parse` to override decoding of properties and values:
+
+```javascript
+var decoded = qs.parse('x=z', { decoder: function (str) {
+    // Passed in values `x`, `z`
+    return // Return decoded string
+}})
+```
+
+You can encode keys and values using different logic by using the type argument provided to the encoder:
+
+```javascript
+var encoded = qs.stringify({ a: { b: 'c' } }, { encoder: function (str, defaultEncoder, charset, type) {
+    if (type === 'key') {
+        return // Encoded key
+    } else if (type === 'value') {
+        return // Encoded value
+    }
+}})
+```
+
+The type argument is also provided to the decoder:
+
+```javascript
+var decoded = qs.parse('x=z', { decoder: function (str, defaultDecoder, charset, type) {
+    if (type === 'key') {
+        return // Decoded key
+    } else if (type === 'value') {
+        return // Decoded value
+    }
+}})
+```
+
+Examples beyond this point will be shown as though the output is not URI encoded for clarity.
+Please note that the return values in these cases *will* be URI encoded during real usage.
+
+When arrays are stringified, they follow the `arrayFormat` option, which defaults to `indices`:
+
+```javascript
+qs.stringify({ a: ['b', 'c', 'd'] });
+// 'a[0]=b&a[1]=c&a[2]=d'
+```
+
+You may override this by setting the `indices` option to `false`, or to be more explicit, the `arrayFormat` option to `repeat`:
+
+```javascript
+qs.stringify({ a: ['b', 'c', 'd'] }, { indices: false });
+// 'a=b&a=c&a=d'
+```
+
+You may use the `arrayFormat` option to specify the format of the output array:
+
+```javascript
+qs.stringify({ a: ['b', 'c'] }, { arrayFormat: 'indices' })
+// 'a[0]=b&a[1]=c'
+qs.stringify({ a: ['b', 'c'] }, { arrayFormat: 'brackets' })
+// 'a[]=b&a[]=c'
+qs.stringify({ a: ['b', 'c'] }, { arrayFormat: 'repeat' })
+// 'a=b&a=c'
+qs.stringify({ a: ['b', 'c'] }, { arrayFormat: 'comma' })
+// 'a=b,c'
+```
+
+Note: when using `arrayFormat` set to `'comma'`, you can also pass the `commaRoundTrip` option set to `true` or `false`, to append `[]` on single-item arrays, so that they can round trip through a parse.
+
+When objects are stringified, by default they use bracket notation:
+
+```javascript
+qs.stringify({ a: { b: { c: 'd', e: 'f' } } });
+// 'a[b][c]=d&a[b][e]=f'
+```
+
+You may override this to use dot notation by setting the `allowDots` option to `true`:
+
+```javascript
+qs.stringify({ a: { b: { c: 'd', e: 'f' } } }, { allowDots: true });
+// 'a.b.c=d&a.b.e=f'
+```
+
+You may encode the dot notation in the keys of object with option `encodeDotInKeys` by setting it to `true`:
+Note: it implies `allowDots`, so `stringify` will error if you set `decodeDotInKeys` to `true`, and `allowDots` to `false`.
+Caveat: when `encodeValuesOnly` is `true` as well as `encodeDotInKeys`, only dots in keys and nothing else will be encoded.
+```javascript
+qs.stringify({ "name.obj": { "first": "John", "last": "Doe" } }, { allowDots: true, encodeDotInKeys: true })
+// 'name%252Eobj.first=John&name%252Eobj.last=Doe'
+```
+
+You may allow empty array values by setting the `allowEmptyArrays` option to `true`:
+```javascript
+qs.stringify({ foo: [], bar: 'baz' }, { allowEmptyArrays: true });
+// 'foo[]&bar=baz'
+```
+
+Empty strings and null values will omit the value, but the equals sign (=) remains in place:
+
+```javascript
+assert.equal(qs.stringify({ a: '' }), 'a=');
+```
+
+Key with no values (such as an empty object or array) will return nothing:
+
+```javascript
+assert.equal(qs.stringify({ a: [] }), '');
+assert.equal(qs.stringify({ a: {} }), '');
+assert.equal(qs.stringify({ a: [{}] }), '');
+assert.equal(qs.stringify({ a: { b: []} }), '');
+assert.equal(qs.stringify({ a: { b: {}} }), '');
+```
+
+Properties that are set to `undefined` will be omitted entirely:
+
+```javascript
+assert.equal(qs.stringify({ a: null, b: undefined }), 'a=');
+```
+
+The query string may optionally be prepended with a question mark:
+
+```javascript
+assert.equal(qs.stringify({ a: 'b', c: 'd' }, { addQueryPrefix: true }), '?a=b&c=d');
+```
+
+The delimiter may be overridden with stringify as well:
+
+```javascript
+assert.equal(qs.stringify({ a: 'b', c: 'd' }, { delimiter: ';' }), 'a=b;c=d');
+```
+
+If you only want to override the serialization of `Date` objects, you can provide a `serializeDate` option:
+
+```javascript
+var date = new Date(7);
+assert.equal(qs.stringify({ a: date }), 'a=1970-01-01T00:00:00.007Z'.replace(/:/g, '%3A'));
+assert.equal(
+    qs.stringify({ a: date }, { serializeDate: function (d) { return d.getTime(); } }),
+    'a=7'
+);
+```
+
+You may use the `sort` option to affect the order of parameter keys:
+
+```javascript
+function alphabeticalSort(a, b) {
+    return a.localeCompare(b);
+}
+assert.equal(qs.stringify({ a: 'c', z: 'y', b : 'f' }, { sort: alphabeticalSort }), 'a=c&b=f&z=y');
+```
+
+Finally, you can use the `filter` option to restrict which keys will be included in the stringified output.
+If you pass a function, it will be called for each key to obtain the replacement value.
+Otherwise, if you pass an array, it will be used to select properties and array indices for stringification:
+
+```javascript
+function filterFunc(prefix, value) {
+    if (prefix == 'b') {
+        // Return an `undefined` value to omit a property.
+        return;
+    }
+    if (prefix == 'e[f]') {
+        return value.getTime();
+    }
+    if (prefix == 'e[g][0]') {
+        return value * 2;
+    }
+    return value;
+}
+qs.stringify({ a: 'b', c: 'd', e: { f: new Date(123), g: [2] } }, { filter: filterFunc });
+// 'a=b&c=d&e[f]=123&e[g][0]=4'
+qs.stringify({ a: 'b', c: 'd', e: 'f' }, { filter: ['a', 'e'] });
+// 'a=b&e=f'
+qs.stringify({ a: ['b', 'c', 'd'], e: 'f' }, { filter: ['a', 0, 2] });
+// 'a[0]=b&a[2]=d'
+```
+
+You could also use `filter` to inject custom serialization for user defined types.
+Consider you're working with some api that expects query strings of the format for ranges:
+
+```
+https://domain.com/endpoint?range=30...70
+```
+
+For which you model as:
+
+```javascript
+class Range {
+    constructor(from, to) {
+        this.from = from;
+        this.to = to;
+    }
+}
+```
+
+You could _inject_ a custom serializer to handle values of this type:
+
+```javascript
+qs.stringify(
+    {
+        range: new Range(30, 70),
+    },
+    {
+        filter: (prefix, value) => {
+            if (value instanceof Range) {
+                return `${value.from}...${value.to}`;
+            }
+            // serialize the usual way
+            return value;
+        },
+    }
+);
+// range=30...70
+```
+
+### Handling of `null` values
+
+By default, `null` values are treated like empty strings:
+
+```javascript
+var withNull = qs.stringify({ a: null, b: '' });
+assert.equal(withNull, 'a=&b=');
+```
+
+Parsing does not distinguish between parameters with and without equal signs.
+Both are converted to empty strings.
+
+```javascript
+var equalsInsensitive = qs.parse('a&b=');
+assert.deepEqual(equalsInsensitive, { a: '', b: '' });
+```
+
+To distinguish between `null` values and empty strings use the `strictNullHandling` flag. In the result string the `null`
+values have no `=` sign:
+
+```javascript
+var strictNull = qs.stringify({ a: null, b: '' }, { strictNullHandling: true });
+assert.equal(strictNull, 'a&b=');
+```
+
+To parse values without `=` back to `null` use the `strictNullHandling` flag:
+
+```javascript
+var parsedStrictNull = qs.parse('a&b=', { strictNullHandling: true });
+assert.deepEqual(parsedStrictNull, { a: null, b: '' });
+```
+
+To completely skip rendering keys with `null` values, use the `skipNulls` flag:
+
+```javascript
+var nullsSkipped = qs.stringify({ a: 'b', c: null}, { skipNulls: true });
+assert.equal(nullsSkipped, 'a=b');
+```
+
+If you're communicating with legacy systems, you can switch to `iso-8859-1` using the `charset` option:
+
+```javascript
+var iso = qs.stringify({ æ: 'æ' }, { charset: 'iso-8859-1' });
+assert.equal(iso, '%E6=%E6');
+```
+
+Characters that don't exist in `iso-8859-1` will be converted to numeric entities, similar to what browsers do:
+
+```javascript
+var numeric = qs.stringify({ a: '☺' }, { charset: 'iso-8859-1' });
+assert.equal(numeric, 'a=%26%239786%3B');
+```
+
+You can use the `charsetSentinel` option to announce the character by including an `utf8=✓` parameter with the proper encoding if the checkmark, similar to what Ruby on Rails and others do when submitting forms.
+
+```javascript
+var sentinel = qs.stringify({ a: '☺' }, { charsetSentinel: true });
+assert.equal(sentinel, 'utf8=%E2%9C%93&a=%E2%98%BA');
+
+var isoSentinel = qs.stringify({ a: 'æ' }, { charsetSentinel: true, charset: 'iso-8859-1' });
+assert.equal(isoSentinel, 'utf8=%26%2310003%3B&a=%E6');
+```
+
+### Dealing with special character sets
+
+By default the encoding and decoding of characters is done in `utf-8`, and `iso-8859-1` support is also built in via the `charset` parameter.
+
+If you wish to encode querystrings to a different character set (i.e.
+[Shift JIS](https://en.wikipedia.org/wiki/Shift_JIS)) you can use the
+[`qs-iconv`](https://github.com/martinheidegger/qs-iconv) library:
+
+```javascript
+var encoder = require('qs-iconv/encoder')('shift_jis');
+var shiftJISEncoded = qs.stringify({ a: 'こんにちは！' }, { encoder: encoder });
+assert.equal(shiftJISEncoded, 'a=%82%B1%82%F1%82%C9%82%BF%82%CD%81I');
+```
+
+This also works for decoding of query strings:
+
+```javascript
+var decoder = require('qs-iconv/decoder')('shift_jis');
+var obj = qs.parse('a=%82%B1%82%F1%82%C9%82%BF%82%CD%81I', { decoder: decoder });
+assert.deepEqual(obj, { a: 'こんにちは！' });
+```
+
+### RFC 3986 and RFC 1738 space encoding
+
+RFC3986 used as default option and encodes ' ' to *%20* which is backward compatible.
+In the same time, output can be stringified as per RFC1738 with ' ' equal to '+'.
+
+```
+assert.equal(qs.stringify({ a: 'b c' }), 'a=b%20c');
+assert.equal(qs.stringify({ a: 'b c' }, { format : 'RFC3986' }), 'a=b%20c');
+assert.equal(qs.stringify({ a: 'b c' }, { format : 'RFC1738' }), 'a=b+c');
+```
+
+## Security
+
+Please email [@ljharb](https://github.com/ljharb) or see https://tidelift.com/security if you have a potential security vulnerability to report.
+
+## qs for enterprise
+
+Available as part of the Tidelift Subscription
+
+The maintainers of qs and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications.
+Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use.
+[Learn more.](https://tidelift.com/subscription/pkg/npm-qs?utm_source=npm-qs&utm_medium=referral&utm_campaign=enterprise&utm_term=repo)
+
+[package-url]: https://npmjs.org/package/qs
+[npm-version-svg]: https://versionbadg.es/ljharb/qs.svg
+[deps-svg]: https://david-dm.org/ljharb/qs.svg
+[deps-url]: https://david-dm.org/ljharb/qs
+[dev-deps-svg]: https://david-dm.org/ljharb/qs/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/qs#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/qs.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/qs.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/qs.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=qs
+[codecov-image]: https://codecov.io/gh/ljharb/qs/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/qs/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/qs
+[actions-url]: https://github.com/ljharb/qs/actions
+
+## Acknowledgements
+
+qs logo by [NUMI](https://github.com/numi-hq/open-design):
+
+[<img src="https://raw.githubusercontent.com/numi-hq/open-design/main/assets/numi-lockup.png" alt="NUMI Logo" style="width: 200px;"/>](https://numi.tech/?ref=qs)
diff --git a/backend/node_modules/qs/dist/qs.js b/backend/node_modules/qs/dist/qs.js
new file mode 100644
index 0000000..154e72e
--- /dev/null
+++ b/backend/node_modules/qs/dist/qs.js
@@ -0,0 +1,90 @@
+(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.Qs = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
+"use strict";var replace=String.prototype.replace,percentTwenties=/%20/g,Format={RFC1738:"RFC1738",RFC3986:"RFC3986"};module.exports={default:Format.RFC3986,formatters:{RFC1738:function(e){return replace.call(e,percentTwenties,"+")},RFC3986:function(e){return String(e)}},RFC1738:Format.RFC1738,RFC3986:Format.RFC3986};
+
+},{}],2:[function(require,module,exports){
+"use strict";var stringify=require(4),parse=require(3),formats=require(1);module.exports={formats:formats,parse:parse,stringify:stringify};
+
+},{"1":1,"3":3,"4":4}],3:[function(require,module,exports){
+"use strict";var utils=require(5),has=Object.prototype.hasOwnProperty,isArray=Array.isArray,defaults={allowDots:!1,allowEmptyArrays:!1,allowPrototypes:!1,allowSparse:!1,arrayLimit:20,charset:"utf-8",charsetSentinel:!1,comma:!1,decodeDotInKeys:!1,decoder:utils.decode,delimiter:"&",depth:5,duplicates:"combine",ignoreQueryPrefix:!1,interpretNumericEntities:!1,parameterLimit:1e3,parseArrays:!0,plainObjects:!1,strictDepth:!1,strictNullHandling:!1},interpretNumericEntities=function(e){return e.replace(/&#(\d+);/g,(function(e,t){return String.fromCharCode(parseInt(t,10))}))},parseArrayValue=function(e,t){return e&&"string"==typeof e&&t.comma&&e.indexOf(",")>-1?e.split(","):e},isoSentinel="utf8=%26%2310003%3B",charsetSentinel="utf8=%E2%9C%93",parseValues=function parseQueryStringValues(e,t){var r={__proto__:null},a=t.ignoreQueryPrefix?e.replace(/^\?/,""):e;a=a.replace(/%5B/gi,"[").replace(/%5D/gi,"]");var i,o=t.parameterLimit===1/0?void 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l,s=e[o];if("[]"===s&&r.parseArrays)l=r.allowEmptyArrays&&(""===i||r.strictNullHandling&&null===i)?[]:[].concat(i);else{l=r.plainObjects?Object.create(null):{};var n="["===s.charAt(0)&&"]"===s.charAt(s.length-1)?s.slice(1,-1):s,p=r.decodeDotInKeys?n.replace(/%2E/g,"."):n,c=parseInt(p,10);r.parseArrays||""!==p?!isNaN(c)&&s!==p&&String(c)===p&&c>=0&&r.parseArrays&&c<=r.arrayLimit?(l=[])[c]=i:"__proto__"!==p&&(l[p]=i):l={0:i}}i=l}return i},parseKeys=function parseQueryStringKeys(e,t,r,a){if(e){var i=r.allowDots?e.replace(/\.([^.[]+)/g,"[$1]"):e,o=/(\[[^[\]]*])/g,l=r.depth>0&&/(\[[^[\]]*])/.exec(i),s=l?i.slice(0,l.index):i,n=[];if(s){if(!r.plainObjects&&has.call(Object.prototype,s)&&!r.allowPrototypes)return;n.push(s)}for(var p=0;r.depth>0&&null!==(l=o.exec(i))&&p<r.depth;){if(p+=1,!r.plainObjects&&has.call(Object.prototype,l[1].slice(1,-1))&&!r.allowPrototypes)return;n.push(l[1])}if(l){if(!0===r.strictDepth)throw new RangeError("Input depth exceeded depth option of "+r.depth+" and 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last");return{allowDots:void 0===e.allowDots?!0===e.decodeDotInKeys||defaults.allowDots:!!e.allowDots,allowEmptyArrays:"boolean"==typeof e.allowEmptyArrays?!!e.allowEmptyArrays:defaults.allowEmptyArrays,allowPrototypes:"boolean"==typeof e.allowPrototypes?e.allowPrototypes:defaults.allowPrototypes,allowSparse:"boolean"==typeof e.allowSparse?e.allowSparse:defaults.allowSparse,arrayLimit:"number"==typeof e.arrayLimit?e.arrayLimit:defaults.arrayLimit,charset:t,charsetSentinel:"boolean"==typeof e.charsetSentinel?e.charsetSentinel:defaults.charsetSentinel,comma:"boolean"==typeof e.comma?e.comma:defaults.comma,decodeDotInKeys:"boolean"==typeof e.decodeDotInKeys?e.decodeDotInKeys:defaults.decodeDotInKeys,decoder:"function"==typeof e.decoder?e.decoder:defaults.decoder,delimiter:"string"==typeof e.delimiter||utils.isRegExp(e.delimiter)?e.delimiter:defaults.delimiter,depth:"number"==typeof e.depth||!1===e.depth?+e.depth:defaults.depth,duplicates:r,ignoreQueryPrefix:!0===e.ignoreQueryPrefix,interpretNumericEntities:"boolean"==typeof e.interpretNumericEntities?e.interpretNumericEntities:defaults.interpretNumericEntities,parameterLimit:"number"==typeof e.parameterLimit?e.parameterLimit:defaults.parameterLimit,parseArrays:!1!==e.parseArrays,plainObjects:"boolean"==typeof e.plainObjects?e.plainObjects:defaults.plainObjects,strictDepth:"boolean"==typeof e.strictDepth?!!e.strictDepth:defaults.strictDepth,strictNullHandling:"boolean"==typeof e.strictNullHandling?e.strictNullHandling:defaults.strictNullHandling}};module.exports=function(e,t){var r=normalizeParseOptions(t);if(""===e||null==e)return r.plainObjects?Object.create(null):{};for(var a="string"==typeof e?parseValues(e,r):e,i=r.plainObjects?Object.create(null):{},o=Object.keys(a),l=0;l<o.length;++l){var s=o[l],n=parseKeys(s,a[s],r,"string"==typeof e);i=utils.merge(i,n,r)}return!0===r.allowSparse?i:utils.compact(i)};
+
+},{"5":5}],4:[function(require,module,exports){
+"use strict";var getSideChannel=require(29),utils=require(5),formats=require(1),has=Object.prototype.hasOwnProperty,arrayPrefixGenerators={brackets:function brackets(e){return e+"[]"},comma:"comma",indices:function indices(e,r){return e+"["+r+"]"},repeat:function repeat(e){return e}},isArray=Array.isArray,push=Array.prototype.push,pushToArray=function(e,r){push.apply(e,isArray(r)?r:[r])},toISO=Date.prototype.toISOString,defaultFormat=formats.default,defaults={addQueryPrefix:!1,allowDots:!1,allowEmptyArrays:!1,arrayFormat:"indices",charset:"utf-8",charsetSentinel:!1,delimiter:"&",encode:!0,encodeDotInKeys:!1,encoder:utils.encode,encodeValuesOnly:!1,format:defaultFormat,formatter:formats.formatters[defaultFormat],indices:!1,serializeDate:function serializeDate(e){return toISO.call(e)},skipNulls:!1,strictNullHandling:!1},isNonNullishPrimitive=function isNonNullishPrimitive(e){return"string"==typeof e||"number"==typeof e||"boolean"==typeof e||"symbol"==typeof e||"bigint"==typeof 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charset option must be either utf-8, iso-8859-1, or undefined");var t=formats.default;if(void 0!==e.format){if(!has.call(formats.formatters,e.format))throw new TypeError("Unknown format option provided.");t=e.format}var o,a=formats.formatters[t],n=defaults.filter;if(("function"==typeof e.filter||isArray(e.filter))&&(n=e.filter),o=e.arrayFormat in arrayPrefixGenerators?e.arrayFormat:"indices"in e?e.indices?"indices":"repeat":defaults.arrayFormat,"commaRoundTrip"in e&&"boolean"!=typeof e.commaRoundTrip)throw new TypeError("`commaRoundTrip` must be a boolean, or absent");var i=void 0===e.allowDots?!0===e.encodeDotInKeys||defaults.allowDots:!!e.allowDots;return{addQueryPrefix:"boolean"==typeof e.addQueryPrefix?e.addQueryPrefix:defaults.addQueryPrefix,allowDots:i,allowEmptyArrays:"boolean"==typeof e.allowEmptyArrays?!!e.allowEmptyArrays:defaults.allowEmptyArrays,arrayFormat:o,charset:r,charsetSentinel:"boolean"==typeof e.charsetSentinel?e.charsetSentinel:defaults.charsetSentinel,commaRoundTrip:e.commaRoundTrip,delimiter:void 0===e.delimiter?defaults.delimiter:e.delimiter,encode:"boolean"==typeof e.encode?e.encode:defaults.encode,encodeDotInKeys:"boolean"==typeof e.encodeDotInKeys?e.encodeDotInKeys:defaults.encodeDotInKeys,encoder:"function"==typeof e.encoder?e.encoder:defaults.encoder,encodeValuesOnly:"boolean"==typeof e.encodeValuesOnly?e.encodeValuesOnly:defaults.encodeValuesOnly,filter:n,format:t,formatter:a,serializeDate:"function"==typeof e.serializeDate?e.serializeDate:defaults.serializeDate,skipNulls:"boolean"==typeof e.skipNulls?e.skipNulls:defaults.skipNulls,sort:"function"==typeof e.sort?e.sort:null,strictNullHandling:"boolean"==typeof e.strictNullHandling?e.strictNullHandling:defaults.strictNullHandling}};module.exports=function(e,r){var t,o=e,a=normalizeStringifyOptions(r);"function"==typeof a.filter?o=(0,a.filter)("",o):isArray(a.filter)&&(t=a.filter);var n=[];if("object"!=typeof o||null===o)return"";var i=arrayPrefixGenerators[a.arrayFormat],l="comma"===i&&a.commaRoundTrip;t||(t=Object.keys(o)),a.sort&&t.sort(a.sort);for(var s=getSideChannel(),f=0;f<t.length;++f){var u=t[f];a.skipNulls&&null===o[u]||pushToArray(n,stringify(o[u],u,i,l,a.allowEmptyArrays,a.strictNullHandling,a.skipNulls,a.encodeDotInKeys,a.encode?a.encoder:null,a.filter,a.sort,a.allowDots,a.serializeDate,a.format,a.formatter,a.encodeValuesOnly,a.charset,s))}var d=n.join(a.delimiter),y=!0===a.addQueryPrefix?"?":"";return a.charsetSentinel&&("iso-8859-1"===a.charset?y+="utf8=%26%2310003%3B&":y+="utf8=%E2%9C%93&"),d.length>0?y+d:""};
+
+},{"1":1,"29":29,"5":5}],5:[function(require,module,exports){
+"use strict";var formats=require(1),has=Object.prototype.hasOwnProperty,isArray=Array.isArray,hexTable=function(){for(var e=[],r=0;r<256;++r)e.push("%"+((r<16?"0":"")+r.toString(16)).toUpperCase());return e}(),compactQueue=function compactQueue(e){for(;e.length>1;){var r=e.pop(),t=r.obj[r.prop];if(isArray(t)){for(var o=[],n=0;n<t.length;++n)void 0!==t[n]&&o.push(t[n]);r.obj[r.prop]=o}}},arrayToObject=function arrayToObject(e,r){for(var t=r&&r.plainObjects?Object.create(null):{},o=0;o<e.length;++o)void 0!==e[o]&&(t[o]=e[o]);return t},merge=function merge(e,r,t){if(!r)return e;if("object"!=typeof r){if(isArray(e))e.push(r);else{if(!e||"object"!=typeof e)return[e,r];(t&&(t.plainObjects||t.allowPrototypes)||!has.call(Object.prototype,r))&&(e[r]=!0)}return e}if(!e||"object"!=typeof e)return[e].concat(r);var o=e;return isArray(e)&&!isArray(r)&&(o=arrayToObject(e,t)),isArray(e)&&isArray(r)?(r.forEach((function(r,o){if(has.call(e,o)){var n=e[o];n&&"object"==typeof n&&r&&"object"==typeof r?e[o]=merge(n,r,t):e.push(r)}else e[o]=r})),e):Object.keys(r).reduce((function(e,o){var n=r[o];return has.call(e,o)?e[o]=merge(e[o],n,t):e[o]=n,e}),o)},assign=function assignSingleSource(e,r){return Object.keys(r).reduce((function(e,t){return e[t]=r[t],e}),e)},decode=function(e,r,t){var o=e.replace(/\+/g," ");if("iso-8859-1"===t)return o.replace(/%[0-9a-f]{2}/gi,unescape);try{return decodeURIComponent(o)}catch(e){return o}},limit=1024,encode=function encode(e,r,t,o,n){if(0===e.length)return e;var a=e;if("symbol"==typeof e?a=Symbol.prototype.toString.call(e):"string"!=typeof e&&(a=String(e)),"iso-8859-1"===t)return escape(a).replace(/%u[0-9a-f]{4}/gi,(function(e){return"%26%23"+parseInt(e.slice(2),16)+"%3B"}));for(var c="",i=0;i<a.length;i+=limit){for(var u=a.length>=limit?a.slice(i,i+limit):a,p=[],s=0;s<u.length;++s){var f=u.charCodeAt(s);45===f||46===f||95===f||126===f||f>=48&&f<=57||f>=65&&f<=90||f>=97&&f<=122||n===formats.RFC1738&&(40===f||41===f)?p[p.length]=u.charAt(s):f<128?p[p.length]=hexTable[f]:f<2048?p[p.length]=hexTable[192|f>>6]+hexTable[128|63&f]:f<55296||f>=57344?p[p.length]=hexTable[224|f>>12]+hexTable[128|f>>6&63]+hexTable[128|63&f]:(s+=1,f=65536+((1023&f)<<10|1023&u.charCodeAt(s)),p[p.length]=hexTable[240|f>>18]+hexTable[128|f>>12&63]+hexTable[128|f>>6&63]+hexTable[128|63&f])}c+=p.join("")}return c},compact=function compact(e){for(var r=[{obj:{o:e},prop:"o"}],t=[],o=0;o<r.length;++o)for(var n=r[o],a=n.obj[n.prop],c=Object.keys(a),i=0;i<c.length;++i){var u=c[i],p=a[u];"object"==typeof p&&null!==p&&-1===t.indexOf(p)&&(r.push({obj:a,prop:u}),t.push(p))}return compactQueue(r),e},isRegExp=function isRegExp(e){return"[object RegExp]"===Object.prototype.toString.call(e)},isBuffer=function isBuffer(e){return!(!e||"object"!=typeof e||!(e.constructor&&e.constructor.isBuffer&&e.constructor.isBuffer(e)))},combine=function combine(e,r){return[].concat(e,r)},maybeMap=function maybeMap(e,r){if(isArray(e)){for(var t=[],o=0;o<e.length;o+=1)t.push(r(e[o]));return t}return r(e)};module.exports={/* common-shake removed: arrayToObject:arrayToObject *//* common-shake removed: assign:assign */combine:combine,compact:compact,decode:decode,encode:encode,isBuffer:isBuffer,isRegExp:isRegExp,maybeMap:maybeMap,merge:merge};
+
+},{"1":1}],29:[function(require,module,exports){
+"use strict";var GetIntrinsic=require(20),callBound=require(7),inspect=require(27),$TypeError=require(16),$WeakMap=GetIntrinsic("%WeakMap%",!0),$Map=GetIntrinsic("%Map%",!0),$weakMapGet=callBound("WeakMap.prototype.get",!0),$weakMapSet=callBound("WeakMap.prototype.set",!0),$weakMapHas=callBound("WeakMap.prototype.has",!0),$mapGet=callBound("Map.prototype.get",!0),$mapSet=callBound("Map.prototype.set",!0),$mapHas=callBound("Map.prototype.has",!0),listGetNode=function(e,t){for(var n,a=e;null!==(n=a.next);a=n)if(n.key===t)return a.next=n.next,n.next=e.next,e.next=n,n},listGet=function(e,t){var n=listGetNode(e,t);return n&&n.value},listSet=function(e,t,n){var a=listGetNode(e,t);a?a.value=n:e.next={key:t,next:e.next,value:n}},listHas=function(e,t){return!!listGetNode(e,t)};module.exports=function getSideChannel(){var e,t,n,a={assert:function(e){if(!a.has(e))throw new $TypeError("Side channel does not contain "+inspect(e))},get:function(a){if($WeakMap&&a&&("object"==typeof a||"function"==typeof a)){if(e)return $weakMapGet(e,a)}else if($Map){if(t)return $mapGet(t,a)}else if(n)return listGet(n,a)},has:function(a){if($WeakMap&&a&&("object"==typeof a||"function"==typeof a)){if(e)return $weakMapHas(e,a)}else if($Map){if(t)return $mapHas(t,a)}else if(n)return listHas(n,a);return!1},set:function(a,r){$WeakMap&&a&&("object"==typeof a||"function"==typeof a)?(e||(e=new $WeakMap),$weakMapSet(e,a,r)):$Map?(t||(t=new $Map),$mapSet(t,a,r)):(n||(n={key:{},next:null}),listSet(n,a,r))}};return a};
+
+},{"16":16,"20":20,"27":27,"7":7}],6:[function(require,module,exports){
+
+},{}],7:[function(require,module,exports){
+"use strict";var GetIntrinsic=require(20),callBind=require(8),$indexOf=callBind(GetIntrinsic("String.prototype.indexOf"));module.exports=function callBoundIntrinsic(i,n){var t=GetIntrinsic(i,!!n);return"function"==typeof t&&$indexOf(i,".prototype.")>-1?callBind(t):t};
+
+},{"20":20,"8":8}],20:[function(require,module,exports){
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+"use strict";module.exports=TypeError;
+
+},{}],19:[function(require,module,exports){
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+
+},{"10":10,"15":15,"16":16,"21":21}],15:[function(require,module,exports){
+"use strict";module.exports=SyntaxError;
+
+},{}],21:[function(require,module,exports){
+"use strict";var GetIntrinsic=require(20),$gOPD=GetIntrinsic("%Object.getOwnPropertyDescriptor%",!0);if($gOPD)try{$gOPD([],"length")}catch(t){$gOPD=null}module.exports=$gOPD;
+
+},{"20":20}],11:[function(require,module,exports){
+"use strict";module.exports=EvalError;
+
+},{}],12:[function(require,module,exports){
+"use strict";module.exports=Error;
+
+},{}],13:[function(require,module,exports){
+"use strict";module.exports=RangeError;
+
+},{}],14:[function(require,module,exports){
+"use strict";module.exports=ReferenceError;
+
+},{}],17:[function(require,module,exports){
+"use strict";module.exports=URIError;
+
+},{}],18:[function(require,module,exports){
+"use strict";var ERROR_MESSAGE="Function.prototype.bind called on incompatible ",toStr=Object.prototype.toString,max=Math.max,funcType="[object Function]",concatty=function concatty(t,n){for(var r=[],o=0;o<t.length;o+=1)r[o]=t[o];for(var e=0;e<n.length;e+=1)r[e+t.length]=n[e];return r},slicy=function slicy(t,n){for(var r=[],o=n||0,e=0;o<t.length;o+=1,e+=1)r[e]=t[o];return r},joiny=function(t,n){for(var r="",o=0;o<t.length;o+=1)r+=t[o],o+1<t.length&&(r+=n);return r};module.exports=function bind(t){var n=this;if("function"!=typeof n||toStr.apply(n)!==funcType)throw new TypeError(ERROR_MESSAGE+n);for(var r,o=slicy(arguments,1),e=max(0,n.length-o.length),i=[],c=0;c<e;c++)i[c]="$"+c;if(r=Function("binder","return function ("+joiny(i,",")+"){ return binder.apply(this,arguments); }")((function(){if(this instanceof r){var e=n.apply(this,concatty(o,arguments));return Object(e)===e?e:this}return n.apply(t,concatty(o,arguments))})),n.prototype){var p=function Empty(){};p.prototype=n.prototype,r.prototype=new p,p.prototype=null}return r};
+
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+"use strict";var test={__proto__:null,foo:{}},$Object=Object;module.exports=function hasProto(){return{__proto__:test}.foo===test.foo&&!(test instanceof $Object)};
+
+},{}],26:[function(require,module,exports){
+"use strict";var call=Function.prototype.call,$hasOwn=Object.prototype.hasOwnProperty,bind=require(19);module.exports=bind.call(call,$hasOwn);
+
+},{"19":19}],24:[function(require,module,exports){
+"use strict";var origSymbol="undefined"!=typeof Symbol&&Symbol,hasSymbolSham=require(25);module.exports=function hasNativeSymbols(){return"function"==typeof origSymbol&&"function"==typeof Symbol&&"symbol"==typeof origSymbol("foo")&&"symbol"==typeof Symbol("bar")&&hasSymbolSham()};
+
+},{"25":25}],22:[function(require,module,exports){
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+
+},{"10":10}],25:[function(require,module,exports){
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+
+},{}],27:[function(require,module,exports){
+(function (global){(function (){
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o=e||{};if(has(o,"quoteStyle")&&"single"!==o.quoteStyle&&"double"!==o.quoteStyle)throw new TypeError('option "quoteStyle" must be "single" or "double"');if(has(o,"maxStringLength")&&("number"==typeof o.maxStringLength?o.maxStringLength<0&&o.maxStringLength!==1/0:null!==o.maxStringLength))throw new TypeError('option "maxStringLength", if provided, must be a positive integer, Infinity, or `null`');var i=!has(o,"customInspect")||o.customInspect;if("boolean"!=typeof i&&"symbol"!==i)throw new TypeError("option \"customInspect\", if provided, must be `true`, `false`, or `'symbol'`");if(has(o,"indent")&&null!==o.indent&&"\t"!==o.indent&&!(parseInt(o.indent,10)===o.indent&&o.indent>0))throw new TypeError('option "indent" must be "\\t", an integer > 0, or `null`');if(has(o,"numericSeparator")&&"boolean"!=typeof o.numericSeparator)throw new TypeError('option "numericSeparator", if provided, must be `true` or `false`');var a=o.numericSeparator;if(void 0===t)return"undefined";if(null===t)return"null";if("boolean"==typeof t)return t?"true":"false";if("string"==typeof t)return inspectString(t,o);if("number"==typeof t){if(0===t)return 1/0/t>0?"0":"-0";var c=String(t);return a?addNumericSeparator(t,c):c}if("bigint"==typeof t){var l=String(t)+"n";return a?addNumericSeparator(t,l):l}var p=void 0===o.depth?5:o.depth;if(void 0===r&&(r=0),r>=p&&p>0&&"object"==typeof t)return isArray(t)?"[Array]":"[Object]";var u=getIndent(o,r);if(void 0===n)n=[];else if(indexOf(n,t)>=0)return"[Circular]";function inspect(t,e,i){if(e&&(n=$arrSlice.call(n)).push(e),i){var a={depth:o.depth};return has(o,"quoteStyle")&&(a.quoteStyle=o.quoteStyle),inspect_(t,a,r+1,n)}return inspect_(t,o,r+1,n)}if("function"==typeof t&&!isRegExp(t)){var f=nameOf(t),s=arrObjKeys(t,inspect);return"[Function"+(f?": "+f:" (anonymous)")+"]"+(s.length>0?" { "+$join.call(s,", ")+" }":"")}if(isSymbol(t)){var y=hasShammedSymbols?$replace.call(String(t),/^(Symbol\(.*\))_[^)]*$/,"$1"):symToString.call(t);return"object"!=typeof t||hasShammedSymbols?y:markBoxed(y)}if(isElement(t)){for(var S="<"+$toLowerCase.call(String(t.nodeName)),g=t.attributes||[],b=0;b<g.length;b++)S+=" "+g[b].name+"="+wrapQuotes(quote(g[b].value),"double",o);return S+=">",t.childNodes&&t.childNodes.length&&(S+="..."),S+"</"+$toLowerCase.call(String(t.nodeName))+">"}if(isArray(t)){if(0===t.length)return"[]";var m=arrObjKeys(t,inspect);return u&&!singleLineValues(m)?"["+indentedJoin(m,u)+"]":"[ "+$join.call(m,", ")+" ]"}if(isError(t)){var h=arrObjKeys(t,inspect);return"cause"in Error.prototype||!("cause"in t)||isEnumerable.call(t,"cause")?0===h.length?"["+String(t)+"]":"{ ["+String(t)+"] "+$join.call(h,", ")+" }":"{ ["+String(t)+"] "+$join.call($concat.call("[cause]: "+inspect(t.cause),h),", ")+" }"}if("object"==typeof t&&i){if(inspectSymbol&&"function"==typeof t[inspectSymbol]&&utilInspect)return utilInspect(t,{depth:p-r});if("symbol"!==i&&"function"==typeof t.inspect)return t.inspect()}if(isMap(t)){var d=[];return mapForEach&&mapForEach.call(t,(function(e,r){d.push(inspect(r,t,!0)+" => "+inspect(e,t))})),collectionOf("Map",mapSize.call(t),d,u)}if(isSet(t)){var j=[];return setForEach&&setForEach.call(t,(function(e){j.push(inspect(e,t))})),collectionOf("Set",setSize.call(t),j,u)}if(isWeakMap(t))return weakCollectionOf("WeakMap");if(isWeakSet(t))return weakCollectionOf("WeakSet");if(isWeakRef(t))return weakCollectionOf("WeakRef");if(isNumber(t))return markBoxed(inspect(Number(t)));if(isBigInt(t))return markBoxed(inspect(bigIntValueOf.call(t)));if(isBoolean(t))return markBoxed(booleanValueOf.call(t));if(isString(t))return markBoxed(inspect(String(t)));if("undefined"!=typeof window&&t===window)return"{ [object Window] }";if("undefined"!=typeof globalThis&&t===globalThis||"undefined"!=typeof global&&t===global)return"{ [object globalThis] }";if(!isDate(t)&&!isRegExp(t)){var O=arrObjKeys(t,inspect),w=gPO?gPO(t)===Object.prototype:t instanceof Object||t.constructor===Object,$=t instanceof Object?"":"null prototype",k=!w&&toStringTag&&Object(t)===t&&toStringTag in t?$slice.call(toStr(t),8,-1):$?"Object":"",v=(w||"function"!=typeof t.constructor?"":t.constructor.name?t.constructor.name+" ":"")+(k||$?"["+$join.call($concat.call([],k||[],$||[]),": ")+"] ":"");return 0===O.length?v+"{}":u?v+"{"+indentedJoin(O,u)+"}":v+"{ "+$join.call(O,", ")+" }"}return String(t)};var hasOwn=Object.prototype.hasOwnProperty||function(t){return t in this};function has(t,e){return hasOwn.call(t,e)}function toStr(t){return objectToString.call(t)}function nameOf(t){if(t.name)return t.name;var e=$match.call(functionToString.call(t),/^function\s*([\w$]+)/);return e?e[1]:null}function indexOf(t,e){if(t.indexOf)return t.indexOf(e);for(var r=0,n=t.length;r<n;r++)if(t[r]===e)return r;return-1}function isMap(t){if(!mapSize||!t||"object"!=typeof t)return!1;try{mapSize.call(t);try{setSize.call(t)}catch(t){return!0}return t instanceof Map}catch(t){}return!1}function isWeakMap(t){if(!weakMapHas||!t||"object"!=typeof t)return!1;try{weakMapHas.call(t,weakMapHas);try{weakSetHas.call(t,weakSetHas)}catch(t){return!0}return t instanceof WeakMap}catch(t){}return!1}function isWeakRef(t){if(!weakRefDeref||!t||"object"!=typeof t)return!1;try{return weakRefDeref.call(t),!0}catch(t){}return!1}function isSet(t){if(!setSize||!t||"object"!=typeof t)return!1;try{setSize.call(t);try{mapSize.call(t)}catch(t){return!0}return t instanceof Set}catch(t){}return!1}function isWeakSet(t){if(!weakSetHas||!t||"object"!=typeof t)return!1;try{weakSetHas.call(t,weakSetHas);try{weakMapHas.call(t,weakMapHas)}catch(t){return!0}return t instanceof WeakSet}catch(t){}return!1}function isElement(t){return!(!t||"object"!=typeof t)&&("undefined"!=typeof HTMLElement&&t instanceof HTMLElement||"string"==typeof t.nodeName&&"function"==typeof t.getAttribute)}function inspectString(t,e){if(t.length>e.maxStringLength){var r=t.length-e.maxStringLength,n="... "+r+" more character"+(r>1?"s":"");return inspectString($slice.call(t,0,e.maxStringLength),e)+n}return wrapQuotes($replace.call($replace.call(t,/(['\\])/g,"\\$1"),/[\x00-\x1f]/g,lowbyte),"single",e)}function lowbyte(t){var e=t.charCodeAt(0),r={8:"b",9:"t",10:"n",12:"f",13:"r"}[e];return r?"\\"+r:"\\x"+(e<16?"0":"")+$toUpperCase.call(e.toString(16))}function markBoxed(t){return"Object("+t+")"}function weakCollectionOf(t){return t+" { ? }"}function collectionOf(t,e,r,n){return t+" ("+e+") {"+(n?indentedJoin(r,n):$join.call(r,", "))+"}"}function singleLineValues(t){for(var e=0;e<t.length;e++)if(indexOf(t[e],"\n")>=0)return!1;return!0}function getIndent(t,e){var r;if("\t"===t.indent)r="\t";else{if(!("number"==typeof t.indent&&t.indent>0))return null;r=$join.call(Array(t.indent+1)," ")}return{base:r,prev:$join.call(Array(e+1),r)}}function indentedJoin(t,e){if(0===t.length)return"";var r="\n"+e.prev+e.base;return r+$join.call(t,","+r)+"\n"+e.prev}function arrObjKeys(t,e){var r=isArray(t),n=[];if(r){n.length=t.length;for(var o=0;o<t.length;o++)n[o]=has(t,o)?e(t[o],t):""}var i,a="function"==typeof gOPS?gOPS(t):[];if(hasShammedSymbols){i={};for(var c=0;c<a.length;c++)i["$"+a[c]]=a[c]}for(var l in t)has(t,l)&&(r&&String(Number(l))===l&&l<t.length||hasShammedSymbols&&i["$"+l]instanceof Symbol||($test.call(/[^\w$]/,l)?n.push(e(l,t)+": "+e(t[l],t)):n.push(l+": "+e(t[l],t))));if("function"==typeof gOPS)for(var p=0;p<a.length;p++)isEnumerable.call(t,a[p])&&n.push("["+e(a[p])+"]: "+e(t[a[p]],t));return n}
+
+}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"6":6}]},{},[2])(2)
+});
diff --git a/backend/node_modules/qs/lib/formats.js b/backend/node_modules/qs/lib/formats.js
new file mode 100644
index 0000000..f36cf20
--- /dev/null
+++ b/backend/node_modules/qs/lib/formats.js
@@ -0,0 +1,23 @@
+'use strict';
+
+var replace = String.prototype.replace;
+var percentTwenties = /%20/g;
+
+var Format = {
+    RFC1738: 'RFC1738',
+    RFC3986: 'RFC3986'
+};
+
+module.exports = {
+    'default': Format.RFC3986,
+    formatters: {
+        RFC1738: function (value) {
+            return replace.call(value, percentTwenties, '+');
+        },
+        RFC3986: function (value) {
+            return String(value);
+        }
+    },
+    RFC1738: Format.RFC1738,
+    RFC3986: Format.RFC3986
+};
diff --git a/backend/node_modules/qs/lib/index.js b/backend/node_modules/qs/lib/index.js
new file mode 100644
index 0000000..0d6a97d
--- /dev/null
+++ b/backend/node_modules/qs/lib/index.js
@@ -0,0 +1,11 @@
+'use strict';
+
+var stringify = require('./stringify');
+var parse = require('./parse');
+var formats = require('./formats');
+
+module.exports = {
+    formats: formats,
+    parse: parse,
+    stringify: stringify
+};
diff --git a/backend/node_modules/qs/lib/parse.js b/backend/node_modules/qs/lib/parse.js
new file mode 100644
index 0000000..3d74c71
--- /dev/null
+++ b/backend/node_modules/qs/lib/parse.js
@@ -0,0 +1,296 @@
+'use strict';
+
+var utils = require('./utils');
+
+var has = Object.prototype.hasOwnProperty;
+var isArray = Array.isArray;
+
+var defaults = {
+    allowDots: false,
+    allowEmptyArrays: false,
+    allowPrototypes: false,
+    allowSparse: false,
+    arrayLimit: 20,
+    charset: 'utf-8',
+    charsetSentinel: false,
+    comma: false,
+    decodeDotInKeys: false,
+    decoder: utils.decode,
+    delimiter: '&',
+    depth: 5,
+    duplicates: 'combine',
+    ignoreQueryPrefix: false,
+    interpretNumericEntities: false,
+    parameterLimit: 1000,
+    parseArrays: true,
+    plainObjects: false,
+    strictDepth: false,
+    strictNullHandling: false
+};
+
+var interpretNumericEntities = function (str) {
+    return str.replace(/&#(\d+);/g, function ($0, numberStr) {
+        return String.fromCharCode(parseInt(numberStr, 10));
+    });
+};
+
+var parseArrayValue = function (val, options) {
+    if (val && typeof val === 'string' && options.comma && val.indexOf(',') > -1) {
+        return val.split(',');
+    }
+
+    return val;
+};
+
+// This is what browsers will submit when the ✓ character occurs in an
+// application/x-www-form-urlencoded body and the encoding of the page containing
+// the form is iso-8859-1, or when the submitted form has an accept-charset
+// attribute of iso-8859-1. Presumably also with other charsets that do not contain
+// the ✓ character, such as us-ascii.
+var isoSentinel = 'utf8=%26%2310003%3B'; // encodeURIComponent('&#10003;')
+
+// These are the percent-encoded utf-8 octets representing a checkmark, indicating that the request actually is utf-8 encoded.
+var charsetSentinel = 'utf8=%E2%9C%93'; // encodeURIComponent('✓')
+
+var parseValues = function parseQueryStringValues(str, options) {
+    var obj = { __proto__: null };
+
+    var cleanStr = options.ignoreQueryPrefix ? str.replace(/^\?/, '') : str;
+    cleanStr = cleanStr.replace(/%5B/gi, '[').replace(/%5D/gi, ']');
+    var limit = options.parameterLimit === Infinity ? undefined : options.parameterLimit;
+    var parts = cleanStr.split(options.delimiter, limit);
+    var skipIndex = -1; // Keep track of where the utf8 sentinel was found
+    var i;
+
+    var charset = options.charset;
+    if (options.charsetSentinel) {
+        for (i = 0; i < parts.length; ++i) {
+            if (parts[i].indexOf('utf8=') === 0) {
+                if (parts[i] === charsetSentinel) {
+                    charset = 'utf-8';
+                } else if (parts[i] === isoSentinel) {
+                    charset = 'iso-8859-1';
+                }
+                skipIndex = i;
+                i = parts.length; // The eslint settings do not allow break;
+            }
+        }
+    }
+
+    for (i = 0; i < parts.length; ++i) {
+        if (i === skipIndex) {
+            continue;
+        }
+        var part = parts[i];
+
+        var bracketEqualsPos = part.indexOf(']=');
+        var pos = bracketEqualsPos === -1 ? part.indexOf('=') : bracketEqualsPos + 1;
+
+        var key, val;
+        if (pos === -1) {
+            key = options.decoder(part, defaults.decoder, charset, 'key');
+            val = options.strictNullHandling ? null : '';
+        } else {
+            key = options.decoder(part.slice(0, pos), defaults.decoder, charset, 'key');
+            val = utils.maybeMap(
+                parseArrayValue(part.slice(pos + 1), options),
+                function (encodedVal) {
+                    return options.decoder(encodedVal, defaults.decoder, charset, 'value');
+                }
+            );
+        }
+
+        if (val && options.interpretNumericEntities && charset === 'iso-8859-1') {
+            val = interpretNumericEntities(val);
+        }
+
+        if (part.indexOf('[]=') > -1) {
+            val = isArray(val) ? [val] : val;
+        }
+
+        var existing = has.call(obj, key);
+        if (existing && options.duplicates === 'combine') {
+            obj[key] = utils.combine(obj[key], val);
+        } else if (!existing || options.duplicates === 'last') {
+            obj[key] = val;
+        }
+    }
+
+    return obj;
+};
+
+var parseObject = function (chain, val, options, valuesParsed) {
+    var leaf = valuesParsed ? val : parseArrayValue(val, options);
+
+    for (var i = chain.length - 1; i >= 0; --i) {
+        var obj;
+        var root = chain[i];
+
+        if (root === '[]' && options.parseArrays) {
+            obj = options.allowEmptyArrays && (leaf === '' || (options.strictNullHandling && leaf === null))
+                ? []
+                : [].concat(leaf);
+        } else {
+            obj = options.plainObjects ? Object.create(null) : {};
+            var cleanRoot = root.charAt(0) === '[' && root.charAt(root.length - 1) === ']' ? root.slice(1, -1) : root;
+            var decodedRoot = options.decodeDotInKeys ? cleanRoot.replace(/%2E/g, '.') : cleanRoot;
+            var index = parseInt(decodedRoot, 10);
+            if (!options.parseArrays && decodedRoot === '') {
+                obj = { 0: leaf };
+            } else if (
+                !isNaN(index)
+                && root !== decodedRoot
+                && String(index) === decodedRoot
+                && index >= 0
+                && (options.parseArrays && index <= options.arrayLimit)
+            ) {
+                obj = [];
+                obj[index] = leaf;
+            } else if (decodedRoot !== '__proto__') {
+                obj[decodedRoot] = leaf;
+            }
+        }
+
+        leaf = obj;
+    }
+
+    return leaf;
+};
+
+var parseKeys = function parseQueryStringKeys(givenKey, val, options, valuesParsed) {
+    if (!givenKey) {
+        return;
+    }
+
+    // Transform dot notation to bracket notation
+    var key = options.allowDots ? givenKey.replace(/\.([^.[]+)/g, '[$1]') : givenKey;
+
+    // The regex chunks
+
+    var brackets = /(\[[^[\]]*])/;
+    var child = /(\[[^[\]]*])/g;
+
+    // Get the parent
+
+    var segment = options.depth > 0 && brackets.exec(key);
+    var parent = segment ? key.slice(0, segment.index) : key;
+
+    // Stash the parent if it exists
+
+    var keys = [];
+    if (parent) {
+        // If we aren't using plain objects, optionally prefix keys that would overwrite object prototype properties
+        if (!options.plainObjects && has.call(Object.prototype, parent)) {
+            if (!options.allowPrototypes) {
+                return;
+            }
+        }
+
+        keys.push(parent);
+    }
+
+    // Loop through children appending to the array until we hit depth
+
+    var i = 0;
+    while (options.depth > 0 && (segment = child.exec(key)) !== null && i < options.depth) {
+        i += 1;
+        if (!options.plainObjects && has.call(Object.prototype, segment[1].slice(1, -1))) {
+            if (!options.allowPrototypes) {
+                return;
+            }
+        }
+        keys.push(segment[1]);
+    }
+
+    // If there's a remainder, check strictDepth option for throw, else just add whatever is left
+
+    if (segment) {
+        if (options.strictDepth === true) {
+            throw new RangeError('Input depth exceeded depth option of ' + options.depth + ' and strictDepth is true');
+        }
+        keys.push('[' + key.slice(segment.index) + ']');
+    }
+
+    return parseObject(keys, val, options, valuesParsed);
+};
+
+var normalizeParseOptions = function normalizeParseOptions(opts) {
+    if (!opts) {
+        return defaults;
+    }
+
+    if (typeof opts.allowEmptyArrays !== 'undefined' && typeof opts.allowEmptyArrays !== 'boolean') {
+        throw new TypeError('`allowEmptyArrays` option can only be `true` or `false`, when provided');
+    }
+
+    if (typeof opts.decodeDotInKeys !== 'undefined' && typeof opts.decodeDotInKeys !== 'boolean') {
+        throw new TypeError('`decodeDotInKeys` option can only be `true` or `false`, when provided');
+    }
+
+    if (opts.decoder !== null && typeof opts.decoder !== 'undefined' && typeof opts.decoder !== 'function') {
+        throw new TypeError('Decoder has to be a function.');
+    }
+
+    if (typeof opts.charset !== 'undefined' && opts.charset !== 'utf-8' && opts.charset !== 'iso-8859-1') {
+        throw new TypeError('The charset option must be either utf-8, iso-8859-1, or undefined');
+    }
+    var charset = typeof opts.charset === 'undefined' ? defaults.charset : opts.charset;
+
+    var duplicates = typeof opts.duplicates === 'undefined' ? defaults.duplicates : opts.duplicates;
+
+    if (duplicates !== 'combine' && duplicates !== 'first' && duplicates !== 'last') {
+        throw new TypeError('The duplicates option must be either combine, first, or last');
+    }
+
+    var allowDots = typeof opts.allowDots === 'undefined' ? opts.decodeDotInKeys === true ? true : defaults.allowDots : !!opts.allowDots;
+
+    return {
+        allowDots: allowDots,
+        allowEmptyArrays: typeof opts.allowEmptyArrays === 'boolean' ? !!opts.allowEmptyArrays : defaults.allowEmptyArrays,
+        allowPrototypes: typeof opts.allowPrototypes === 'boolean' ? opts.allowPrototypes : defaults.allowPrototypes,
+        allowSparse: typeof opts.allowSparse === 'boolean' ? opts.allowSparse : defaults.allowSparse,
+        arrayLimit: typeof opts.arrayLimit === 'number' ? opts.arrayLimit : defaults.arrayLimit,
+        charset: charset,
+        charsetSentinel: typeof opts.charsetSentinel === 'boolean' ? opts.charsetSentinel : defaults.charsetSentinel,
+        comma: typeof opts.comma === 'boolean' ? opts.comma : defaults.comma,
+        decodeDotInKeys: typeof opts.decodeDotInKeys === 'boolean' ? opts.decodeDotInKeys : defaults.decodeDotInKeys,
+        decoder: typeof opts.decoder === 'function' ? opts.decoder : defaults.decoder,
+        delimiter: typeof opts.delimiter === 'string' || utils.isRegExp(opts.delimiter) ? opts.delimiter : defaults.delimiter,
+        // eslint-disable-next-line no-implicit-coercion, no-extra-parens
+        depth: (typeof opts.depth === 'number' || opts.depth === false) ? +opts.depth : defaults.depth,
+        duplicates: duplicates,
+        ignoreQueryPrefix: opts.ignoreQueryPrefix === true,
+        interpretNumericEntities: typeof opts.interpretNumericEntities === 'boolean' ? opts.interpretNumericEntities : defaults.interpretNumericEntities,
+        parameterLimit: typeof opts.parameterLimit === 'number' ? opts.parameterLimit : defaults.parameterLimit,
+        parseArrays: opts.parseArrays !== false,
+        plainObjects: typeof opts.plainObjects === 'boolean' ? opts.plainObjects : defaults.plainObjects,
+        strictDepth: typeof opts.strictDepth === 'boolean' ? !!opts.strictDepth : defaults.strictDepth,
+        strictNullHandling: typeof opts.strictNullHandling === 'boolean' ? opts.strictNullHandling : defaults.strictNullHandling
+    };
+};
+
+module.exports = function (str, opts) {
+    var options = normalizeParseOptions(opts);
+
+    if (str === '' || str === null || typeof str === 'undefined') {
+        return options.plainObjects ? Object.create(null) : {};
+    }
+
+    var tempObj = typeof str === 'string' ? parseValues(str, options) : str;
+    var obj = options.plainObjects ? Object.create(null) : {};
+
+    // Iterate over the keys and setup the new object
+
+    var keys = Object.keys(tempObj);
+    for (var i = 0; i < keys.length; ++i) {
+        var key = keys[i];
+        var newObj = parseKeys(key, tempObj[key], options, typeof str === 'string');
+        obj = utils.merge(obj, newObj, options);
+    }
+
+    if (options.allowSparse === true) {
+        return obj;
+    }
+
+    return utils.compact(obj);
+};
diff --git a/backend/node_modules/qs/lib/stringify.js b/backend/node_modules/qs/lib/stringify.js
new file mode 100644
index 0000000..9b934d6
--- /dev/null
+++ b/backend/node_modules/qs/lib/stringify.js
@@ -0,0 +1,351 @@
+'use strict';
+
+var getSideChannel = require('side-channel');
+var utils = require('./utils');
+var formats = require('./formats');
+var has = Object.prototype.hasOwnProperty;
+
+var arrayPrefixGenerators = {
+    brackets: function brackets(prefix) {
+        return prefix + '[]';
+    },
+    comma: 'comma',
+    indices: function indices(prefix, key) {
+        return prefix + '[' + key + ']';
+    },
+    repeat: function repeat(prefix) {
+        return prefix;
+    }
+};
+
+var isArray = Array.isArray;
+var push = Array.prototype.push;
+var pushToArray = function (arr, valueOrArray) {
+    push.apply(arr, isArray(valueOrArray) ? valueOrArray : [valueOrArray]);
+};
+
+var toISO = Date.prototype.toISOString;
+
+var defaultFormat = formats['default'];
+var defaults = {
+    addQueryPrefix: false,
+    allowDots: false,
+    allowEmptyArrays: false,
+    arrayFormat: 'indices',
+    charset: 'utf-8',
+    charsetSentinel: false,
+    delimiter: '&',
+    encode: true,
+    encodeDotInKeys: false,
+    encoder: utils.encode,
+    encodeValuesOnly: false,
+    format: defaultFormat,
+    formatter: formats.formatters[defaultFormat],
+    // deprecated
+    indices: false,
+    serializeDate: function serializeDate(date) {
+        return toISO.call(date);
+    },
+    skipNulls: false,
+    strictNullHandling: false
+};
+
+var isNonNullishPrimitive = function isNonNullishPrimitive(v) {
+    return typeof v === 'string'
+        || typeof v === 'number'
+        || typeof v === 'boolean'
+        || typeof v === 'symbol'
+        || typeof v === 'bigint';
+};
+
+var sentinel = {};
+
+var stringify = function stringify(
+    object,
+    prefix,
+    generateArrayPrefix,
+    commaRoundTrip,
+    allowEmptyArrays,
+    strictNullHandling,
+    skipNulls,
+    encodeDotInKeys,
+    encoder,
+    filter,
+    sort,
+    allowDots,
+    serializeDate,
+    format,
+    formatter,
+    encodeValuesOnly,
+    charset,
+    sideChannel
+) {
+    var obj = object;
+
+    var tmpSc = sideChannel;
+    var step = 0;
+    var findFlag = false;
+    while ((tmpSc = tmpSc.get(sentinel)) !== void undefined && !findFlag) {
+        // Where object last appeared in the ref tree
+        var pos = tmpSc.get(object);
+        step += 1;
+        if (typeof pos !== 'undefined') {
+            if (pos === step) {
+                throw new RangeError('Cyclic object value');
+            } else {
+                findFlag = true; // Break while
+            }
+        }
+        if (typeof tmpSc.get(sentinel) === 'undefined') {
+            step = 0;
+        }
+    }
+
+    if (typeof filter === 'function') {
+        obj = filter(prefix, obj);
+    } else if (obj instanceof Date) {
+        obj = serializeDate(obj);
+    } else if (generateArrayPrefix === 'comma' && isArray(obj)) {
+        obj = utils.maybeMap(obj, function (value) {
+            if (value instanceof Date) {
+                return serializeDate(value);
+            }
+            return value;
+        });
+    }
+
+    if (obj === null) {
+        if (strictNullHandling) {
+            return encoder && !encodeValuesOnly ? encoder(prefix, defaults.encoder, charset, 'key', format) : prefix;
+        }
+
+        obj = '';
+    }
+
+    if (isNonNullishPrimitive(obj) || utils.isBuffer(obj)) {
+        if (encoder) {
+            var keyValue = encodeValuesOnly ? prefix : encoder(prefix, defaults.encoder, charset, 'key', format);
+            return [formatter(keyValue) + '=' + formatter(encoder(obj, defaults.encoder, charset, 'value', format))];
+        }
+        return [formatter(prefix) + '=' + formatter(String(obj))];
+    }
+
+    var values = [];
+
+    if (typeof obj === 'undefined') {
+        return values;
+    }
+
+    var objKeys;
+    if (generateArrayPrefix === 'comma' && isArray(obj)) {
+        // we need to join elements in
+        if (encodeValuesOnly && encoder) {
+            obj = utils.maybeMap(obj, encoder);
+        }
+        objKeys = [{ value: obj.length > 0 ? obj.join(',') || null : void undefined }];
+    } else if (isArray(filter)) {
+        objKeys = filter;
+    } else {
+        var keys = Object.keys(obj);
+        objKeys = sort ? keys.sort(sort) : keys;
+    }
+
+    var encodedPrefix = encodeDotInKeys ? prefix.replace(/\./g, '%2E') : prefix;
+
+    var adjustedPrefix = commaRoundTrip && isArray(obj) && obj.length === 1 ? encodedPrefix + '[]' : encodedPrefix;
+
+    if (allowEmptyArrays && isArray(obj) && obj.length === 0) {
+        return adjustedPrefix + '[]';
+    }
+
+    for (var j = 0; j < objKeys.length; ++j) {
+        var key = objKeys[j];
+        var value = typeof key === 'object' && typeof key.value !== 'undefined' ? key.value : obj[key];
+
+        if (skipNulls && value === null) {
+            continue;
+        }
+
+        var encodedKey = allowDots && encodeDotInKeys ? key.replace(/\./g, '%2E') : key;
+        var keyPrefix = isArray(obj)
+            ? typeof generateArrayPrefix === 'function' ? generateArrayPrefix(adjustedPrefix, encodedKey) : adjustedPrefix
+            : adjustedPrefix + (allowDots ? '.' + encodedKey : '[' + encodedKey + ']');
+
+        sideChannel.set(object, step);
+        var valueSideChannel = getSideChannel();
+        valueSideChannel.set(sentinel, sideChannel);
+        pushToArray(values, stringify(
+            value,
+            keyPrefix,
+            generateArrayPrefix,
+            commaRoundTrip,
+            allowEmptyArrays,
+            strictNullHandling,
+            skipNulls,
+            encodeDotInKeys,
+            generateArrayPrefix === 'comma' && encodeValuesOnly && isArray(obj) ? null : encoder,
+            filter,
+            sort,
+            allowDots,
+            serializeDate,
+            format,
+            formatter,
+            encodeValuesOnly,
+            charset,
+            valueSideChannel
+        ));
+    }
+
+    return values;
+};
+
+var normalizeStringifyOptions = function normalizeStringifyOptions(opts) {
+    if (!opts) {
+        return defaults;
+    }
+
+    if (typeof opts.allowEmptyArrays !== 'undefined' && typeof opts.allowEmptyArrays !== 'boolean') {
+        throw new TypeError('`allowEmptyArrays` option can only be `true` or `false`, when provided');
+    }
+
+    if (typeof opts.encodeDotInKeys !== 'undefined' && typeof opts.encodeDotInKeys !== 'boolean') {
+        throw new TypeError('`encodeDotInKeys` option can only be `true` or `false`, when provided');
+    }
+
+    if (opts.encoder !== null && typeof opts.encoder !== 'undefined' && typeof opts.encoder !== 'function') {
+        throw new TypeError('Encoder has to be a function.');
+    }
+
+    var charset = opts.charset || defaults.charset;
+    if (typeof opts.charset !== 'undefined' && opts.charset !== 'utf-8' && opts.charset !== 'iso-8859-1') {
+        throw new TypeError('The charset option must be either utf-8, iso-8859-1, or undefined');
+    }
+
+    var format = formats['default'];
+    if (typeof opts.format !== 'undefined') {
+        if (!has.call(formats.formatters, opts.format)) {
+            throw new TypeError('Unknown format option provided.');
+        }
+        format = opts.format;
+    }
+    var formatter = formats.formatters[format];
+
+    var filter = defaults.filter;
+    if (typeof opts.filter === 'function' || isArray(opts.filter)) {
+        filter = opts.filter;
+    }
+
+    var arrayFormat;
+    if (opts.arrayFormat in arrayPrefixGenerators) {
+        arrayFormat = opts.arrayFormat;
+    } else if ('indices' in opts) {
+        arrayFormat = opts.indices ? 'indices' : 'repeat';
+    } else {
+        arrayFormat = defaults.arrayFormat;
+    }
+
+    if ('commaRoundTrip' in opts && typeof opts.commaRoundTrip !== 'boolean') {
+        throw new TypeError('`commaRoundTrip` must be a boolean, or absent');
+    }
+
+    var allowDots = typeof opts.allowDots === 'undefined' ? opts.encodeDotInKeys === true ? true : defaults.allowDots : !!opts.allowDots;
+
+    return {
+        addQueryPrefix: typeof opts.addQueryPrefix === 'boolean' ? opts.addQueryPrefix : defaults.addQueryPrefix,
+        allowDots: allowDots,
+        allowEmptyArrays: typeof opts.allowEmptyArrays === 'boolean' ? !!opts.allowEmptyArrays : defaults.allowEmptyArrays,
+        arrayFormat: arrayFormat,
+        charset: charset,
+        charsetSentinel: typeof opts.charsetSentinel === 'boolean' ? opts.charsetSentinel : defaults.charsetSentinel,
+        commaRoundTrip: opts.commaRoundTrip,
+        delimiter: typeof opts.delimiter === 'undefined' ? defaults.delimiter : opts.delimiter,
+        encode: typeof opts.encode === 'boolean' ? opts.encode : defaults.encode,
+        encodeDotInKeys: typeof opts.encodeDotInKeys === 'boolean' ? opts.encodeDotInKeys : defaults.encodeDotInKeys,
+        encoder: typeof opts.encoder === 'function' ? opts.encoder : defaults.encoder,
+        encodeValuesOnly: typeof opts.encodeValuesOnly === 'boolean' ? opts.encodeValuesOnly : defaults.encodeValuesOnly,
+        filter: filter,
+        format: format,
+        formatter: formatter,
+        serializeDate: typeof opts.serializeDate === 'function' ? opts.serializeDate : defaults.serializeDate,
+        skipNulls: typeof opts.skipNulls === 'boolean' ? opts.skipNulls : defaults.skipNulls,
+        sort: typeof opts.sort === 'function' ? opts.sort : null,
+        strictNullHandling: typeof opts.strictNullHandling === 'boolean' ? opts.strictNullHandling : defaults.strictNullHandling
+    };
+};
+
+module.exports = function (object, opts) {
+    var obj = object;
+    var options = normalizeStringifyOptions(opts);
+
+    var objKeys;
+    var filter;
+
+    if (typeof options.filter === 'function') {
+        filter = options.filter;
+        obj = filter('', obj);
+    } else if (isArray(options.filter)) {
+        filter = options.filter;
+        objKeys = filter;
+    }
+
+    var keys = [];
+
+    if (typeof obj !== 'object' || obj === null) {
+        return '';
+    }
+
+    var generateArrayPrefix = arrayPrefixGenerators[options.arrayFormat];
+    var commaRoundTrip = generateArrayPrefix === 'comma' && options.commaRoundTrip;
+
+    if (!objKeys) {
+        objKeys = Object.keys(obj);
+    }
+
+    if (options.sort) {
+        objKeys.sort(options.sort);
+    }
+
+    var sideChannel = getSideChannel();
+    for (var i = 0; i < objKeys.length; ++i) {
+        var key = objKeys[i];
+
+        if (options.skipNulls && obj[key] === null) {
+            continue;
+        }
+        pushToArray(keys, stringify(
+            obj[key],
+            key,
+            generateArrayPrefix,
+            commaRoundTrip,
+            options.allowEmptyArrays,
+            options.strictNullHandling,
+            options.skipNulls,
+            options.encodeDotInKeys,
+            options.encode ? options.encoder : null,
+            options.filter,
+            options.sort,
+            options.allowDots,
+            options.serializeDate,
+            options.format,
+            options.formatter,
+            options.encodeValuesOnly,
+            options.charset,
+            sideChannel
+        ));
+    }
+
+    var joined = keys.join(options.delimiter);
+    var prefix = options.addQueryPrefix === true ? '?' : '';
+
+    if (options.charsetSentinel) {
+        if (options.charset === 'iso-8859-1') {
+            // encodeURIComponent('&#10003;'), the "numeric entity" representation of a checkmark
+            prefix += 'utf8=%26%2310003%3B&';
+        } else {
+            // encodeURIComponent('✓')
+            prefix += 'utf8=%E2%9C%93&';
+        }
+    }
+
+    return joined.length > 0 ? prefix + joined : '';
+};
diff --git a/backend/node_modules/qs/lib/utils.js b/backend/node_modules/qs/lib/utils.js
new file mode 100644
index 0000000..7c860f1
--- /dev/null
+++ b/backend/node_modules/qs/lib/utils.js
@@ -0,0 +1,265 @@
+'use strict';
+
+var formats = require('./formats');
+
+var has = Object.prototype.hasOwnProperty;
+var isArray = Array.isArray;
+
+var hexTable = (function () {
+    var array = [];
+    for (var i = 0; i < 256; ++i) {
+        array.push('%' + ((i < 16 ? '0' : '') + i.toString(16)).toUpperCase());
+    }
+
+    return array;
+}());
+
+var compactQueue = function compactQueue(queue) {
+    while (queue.length > 1) {
+        var item = queue.pop();
+        var obj = item.obj[item.prop];
+
+        if (isArray(obj)) {
+            var compacted = [];
+
+            for (var j = 0; j < obj.length; ++j) {
+                if (typeof obj[j] !== 'undefined') {
+                    compacted.push(obj[j]);
+                }
+            }
+
+            item.obj[item.prop] = compacted;
+        }
+    }
+};
+
+var arrayToObject = function arrayToObject(source, options) {
+    var obj = options && options.plainObjects ? Object.create(null) : {};
+    for (var i = 0; i < source.length; ++i) {
+        if (typeof source[i] !== 'undefined') {
+            obj[i] = source[i];
+        }
+    }
+
+    return obj;
+};
+
+var merge = function merge(target, source, options) {
+    /* eslint no-param-reassign: 0 */
+    if (!source) {
+        return target;
+    }
+
+    if (typeof source !== 'object') {
+        if (isArray(target)) {
+            target.push(source);
+        } else if (target && typeof target === 'object') {
+            if ((options && (options.plainObjects || options.allowPrototypes)) || !has.call(Object.prototype, source)) {
+                target[source] = true;
+            }
+        } else {
+            return [target, source];
+        }
+
+        return target;
+    }
+
+    if (!target || typeof target !== 'object') {
+        return [target].concat(source);
+    }
+
+    var mergeTarget = target;
+    if (isArray(target) && !isArray(source)) {
+        mergeTarget = arrayToObject(target, options);
+    }
+
+    if (isArray(target) && isArray(source)) {
+        source.forEach(function (item, i) {
+            if (has.call(target, i)) {
+                var targetItem = target[i];
+                if (targetItem && typeof targetItem === 'object' && item && typeof item === 'object') {
+                    target[i] = merge(targetItem, item, options);
+                } else {
+                    target.push(item);
+                }
+            } else {
+                target[i] = item;
+            }
+        });
+        return target;
+    }
+
+    return Object.keys(source).reduce(function (acc, key) {
+        var value = source[key];
+
+        if (has.call(acc, key)) {
+            acc[key] = merge(acc[key], value, options);
+        } else {
+            acc[key] = value;
+        }
+        return acc;
+    }, mergeTarget);
+};
+
+var assign = function assignSingleSource(target, source) {
+    return Object.keys(source).reduce(function (acc, key) {
+        acc[key] = source[key];
+        return acc;
+    }, target);
+};
+
+var decode = function (str, decoder, charset) {
+    var strWithoutPlus = str.replace(/\+/g, ' ');
+    if (charset === 'iso-8859-1') {
+        // unescape never throws, no try...catch needed:
+        return strWithoutPlus.replace(/%[0-9a-f]{2}/gi, unescape);
+    }
+    // utf-8
+    try {
+        return decodeURIComponent(strWithoutPlus);
+    } catch (e) {
+        return strWithoutPlus;
+    }
+};
+
+var limit = 1024;
+
+/* eslint operator-linebreak: [2, "before"] */
+
+var encode = function encode(str, defaultEncoder, charset, kind, format) {
+    // This code was originally written by Brian White (mscdex) for the io.js core querystring library.
+    // It has been adapted here for stricter adherence to RFC 3986
+    if (str.length === 0) {
+        return str;
+    }
+
+    var string = str;
+    if (typeof str === 'symbol') {
+        string = Symbol.prototype.toString.call(str);
+    } else if (typeof str !== 'string') {
+        string = String(str);
+    }
+
+    if (charset === 'iso-8859-1') {
+        return escape(string).replace(/%u[0-9a-f]{4}/gi, function ($0) {
+            return '%26%23' + parseInt($0.slice(2), 16) + '%3B';
+        });
+    }
+
+    var out = '';
+    for (var j = 0; j < string.length; j += limit) {
+        var segment = string.length >= limit ? string.slice(j, j + limit) : string;
+        var arr = [];
+
+        for (var i = 0; i < segment.length; ++i) {
+            var c = segment.charCodeAt(i);
+            if (
+                c === 0x2D // -
+                || c === 0x2E // .
+                || c === 0x5F // _
+                || c === 0x7E // ~
+                || (c >= 0x30 && c <= 0x39) // 0-9
+                || (c >= 0x41 && c <= 0x5A) // a-z
+                || (c >= 0x61 && c <= 0x7A) // A-Z
+                || (format === formats.RFC1738 && (c === 0x28 || c === 0x29)) // ( )
+            ) {
+                arr[arr.length] = segment.charAt(i);
+                continue;
+            }
+
+            if (c < 0x80) {
+                arr[arr.length] = hexTable[c];
+                continue;
+            }
+
+            if (c < 0x800) {
+                arr[arr.length] = hexTable[0xC0 | (c >> 6)]
+                    + hexTable[0x80 | (c & 0x3F)];
+                continue;
+            }
+
+            if (c < 0xD800 || c >= 0xE000) {
+                arr[arr.length] = hexTable[0xE0 | (c >> 12)]
+                    + hexTable[0x80 | ((c >> 6) & 0x3F)]
+                    + hexTable[0x80 | (c & 0x3F)];
+                continue;
+            }
+
+            i += 1;
+            c = 0x10000 + (((c & 0x3FF) << 10) | (segment.charCodeAt(i) & 0x3FF));
+
+            arr[arr.length] = hexTable[0xF0 | (c >> 18)]
+                + hexTable[0x80 | ((c >> 12) & 0x3F)]
+                + hexTable[0x80 | ((c >> 6) & 0x3F)]
+                + hexTable[0x80 | (c & 0x3F)];
+        }
+
+        out += arr.join('');
+    }
+
+    return out;
+};
+
+var compact = function compact(value) {
+    var queue = [{ obj: { o: value }, prop: 'o' }];
+    var refs = [];
+
+    for (var i = 0; i < queue.length; ++i) {
+        var item = queue[i];
+        var obj = item.obj[item.prop];
+
+        var keys = Object.keys(obj);
+        for (var j = 0; j < keys.length; ++j) {
+            var key = keys[j];
+            var val = obj[key];
+            if (typeof val === 'object' && val !== null && refs.indexOf(val) === -1) {
+                queue.push({ obj: obj, prop: key });
+                refs.push(val);
+            }
+        }
+    }
+
+    compactQueue(queue);
+
+    return value;
+};
+
+var isRegExp = function isRegExp(obj) {
+    return Object.prototype.toString.call(obj) === '[object RegExp]';
+};
+
+var isBuffer = function isBuffer(obj) {
+    if (!obj || typeof obj !== 'object') {
+        return false;
+    }
+
+    return !!(obj.constructor && obj.constructor.isBuffer && obj.constructor.isBuffer(obj));
+};
+
+var combine = function combine(a, b) {
+    return [].concat(a, b);
+};
+
+var maybeMap = function maybeMap(val, fn) {
+    if (isArray(val)) {
+        var mapped = [];
+        for (var i = 0; i < val.length; i += 1) {
+            mapped.push(fn(val[i]));
+        }
+        return mapped;
+    }
+    return fn(val);
+};
+
+module.exports = {
+    arrayToObject: arrayToObject,
+    assign: assign,
+    combine: combine,
+    compact: compact,
+    decode: decode,
+    encode: encode,
+    isBuffer: isBuffer,
+    isRegExp: isRegExp,
+    maybeMap: maybeMap,
+    merge: merge
+};
diff --git a/backend/node_modules/qs/package.json b/backend/node_modules/qs/package.json
new file mode 100644
index 0000000..6dae052
--- /dev/null
+++ b/backend/node_modules/qs/package.json
@@ -0,0 +1,91 @@
+{
+    "name": "qs",
+    "description": "A querystring parser that supports nesting and arrays, with a depth limit",
+    "homepage": "https://github.com/ljharb/qs",
+    "version": "6.13.0",
+    "repository": {
+        "type": "git",
+        "url": "https://github.com/ljharb/qs.git"
+    },
+    "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+    },
+    "main": "lib/index.js",
+    "sideEffects": false,
+    "contributors": [
+        {
+            "name": "Jordan Harband",
+            "email": "ljharb@gmail.com",
+            "url": "http://ljharb.codes"
+        }
+    ],
+    "keywords": [
+        "querystring",
+        "qs",
+        "query",
+        "url",
+        "parse",
+        "stringify"
+    ],
+    "engines": {
+        "node": ">=0.6"
+    },
+    "dependencies": {
+        "side-channel": "^1.0.6"
+    },
+    "devDependencies": {
+        "@browserify/envify": "^6.0.0",
+        "@browserify/uglifyify": "^6.0.0",
+        "@ljharb/eslint-config": "^21.1.1",
+        "browserify": "^16.5.2",
+        "bundle-collapser": "^1.4.0",
+        "common-shakeify": "~1.0.0",
+        "eclint": "^2.8.1",
+        "es-value-fixtures": "^1.4.2",
+        "eslint": "=8.8.0",
+        "evalmd": "^0.0.19",
+        "for-each": "^0.3.3",
+        "glob": "=10.3.7",
+        "has-override-mistake": "^1.0.1",
+        "has-property-descriptors": "^1.0.2",
+        "has-symbols": "^1.0.3",
+        "iconv-lite": "^0.5.1",
+        "in-publish": "^2.0.1",
+        "jackspeak": "=2.1.1",
+        "mkdirp": "^0.5.5",
+        "mock-property": "^1.0.3",
+        "module-deps": "^6.2.3",
+        "npmignore": "^0.3.1",
+        "nyc": "^10.3.2",
+        "object-inspect": "^1.13.2",
+        "qs-iconv": "^1.0.4",
+        "safe-publish-latest": "^2.0.0",
+        "safer-buffer": "^2.1.2",
+        "tape": "^5.8.1",
+        "unassertify": "^3.0.1"
+    },
+    "scripts": {
+        "prepack": "npmignore --auto --commentLines=autogenerated && npm run dist",
+        "prepublishOnly": "safe-publish-latest",
+        "prepublish": "not-in-publish || npm run prepublishOnly",
+        "pretest": "npm run --silent readme && npm run --silent lint",
+        "test": "npm run tests-only",
+        "tests-only": "nyc tape 'test/**/*.js'",
+        "posttest": "npx npm@'>=10.2' audit --production",
+        "readme": "evalmd README.md",
+        "postlint": "eclint check $(git ls-files | xargs find 2> /dev/null | grep -vE 'node_modules|\\.git' | grep -v dist/)",
+        "lint": "eslint --ext=js,mjs .",
+        "dist": "mkdirp dist && browserify --standalone Qs -g unassertify -g @browserify/envify -g [@browserify/uglifyify --mangle.keep_fnames --compress.keep_fnames --format.indent_level=1 --compress.arrows=false --compress.passes=4 --compress.typeofs=false] -p common-shakeify -p bundle-collapser/plugin lib/index.js > dist/qs.js"
+    },
+    "license": "BSD-3-Clause",
+    "publishConfig": {
+        "ignore": [
+            "!dist/*",
+            "bower.json",
+            "component.json",
+            ".github/workflows",
+            "logos",
+            "tea.yaml"
+        ]
+    }
+}
diff --git a/backend/node_modules/qs/test/empty-keys-cases.js b/backend/node_modules/qs/test/empty-keys-cases.js
new file mode 100644
index 0000000..2b1190e
--- /dev/null
+++ b/backend/node_modules/qs/test/empty-keys-cases.js
@@ -0,0 +1,267 @@
+'use strict';
+
+module.exports = {
+    emptyTestCases: [
+        {
+            input: '&',
+            withEmptyKeys: {},
+            stringifyOutput: {
+                brackets: '',
+                indices: '',
+                repeat: ''
+            },
+            noEmptyKeys: {}
+        },
+        {
+            input: '&&',
+            withEmptyKeys: {},
+            stringifyOutput: {
+                brackets: '',
+                indices: '',
+                repeat: ''
+            },
+            noEmptyKeys: {}
+        },
+        {
+            input: '&=',
+            withEmptyKeys: { '': '' },
+            stringifyOutput: {
+                brackets: '=',
+                indices: '=',
+                repeat: '='
+            },
+            noEmptyKeys: {}
+        },
+        {
+            input: '&=&',
+            withEmptyKeys: { '': '' },
+            stringifyOutput: {
+                brackets: '=',
+                indices: '=',
+                repeat: '='
+            },
+            noEmptyKeys: {}
+        },
+        {
+            input: '&=&=',
+            withEmptyKeys: { '': ['', ''] },
+            stringifyOutput: {
+                brackets: '[]=&[]=',
+                indices: '[0]=&[1]=',
+                repeat: '=&='
+            },
+            noEmptyKeys: {}
+        },
+        {
+            input: '&=&=&',
+            withEmptyKeys: { '': ['', ''] },
+            stringifyOutput: {
+                brackets: '[]=&[]=',
+                indices: '[0]=&[1]=',
+                repeat: '=&='
+            },
+            noEmptyKeys: {}
+        },
+        {
+            input: '=',
+            withEmptyKeys: { '': '' },
+            noEmptyKeys: {},
+            stringifyOutput: {
+                brackets: '=',
+                indices: '=',
+                repeat: '='
+            }
+        },
+        {
+            input: '=&',
+            withEmptyKeys: { '': '' },
+            stringifyOutput: {
+                brackets: '=',
+                indices: '=',
+                repeat: '='
+            },
+            noEmptyKeys: {}
+        },
+        {
+            input: '=&&&',
+            withEmptyKeys: { '': '' },
+            stringifyOutput: {
+                brackets: '=',
+                indices: '=',
+                repeat: '='
+            },
+            noEmptyKeys: {}
+        },
+        {
+            input: '=&=&=&',
+            withEmptyKeys: { '': ['', '', ''] },
+            stringifyOutput: {
+                brackets: '[]=&[]=&[]=',
+                indices: '[0]=&[1]=&[2]=',
+                repeat: '=&=&='
+            },
+            noEmptyKeys: {}
+        },
+        {
+            input: '=&a[]=b&a[1]=c',
+            withEmptyKeys: { '': '', a: ['b', 'c'] },
+            stringifyOutput: {
+                brackets: '=&a[]=b&a[]=c',
+                indices: '=&a[0]=b&a[1]=c',
+                repeat: '=&a=b&a=c'
+            },
+            noEmptyKeys: { a: ['b', 'c'] }
+        },
+        {
+            input: '=a',
+            withEmptyKeys: { '': 'a' },
+            noEmptyKeys: {},
+            stringifyOutput: {
+                brackets: '=a',
+                indices: '=a',
+                repeat: '=a'
+            }
+        },
+        {
+            input: 'a==a',
+            withEmptyKeys: { a: '=a' },
+            noEmptyKeys: { a: '=a' },
+            stringifyOutput: {
+                brackets: 'a==a',
+                indices: 'a==a',
+                repeat: 'a==a'
+            }
+        },
+        {
+            input: '=&a[]=b',
+            withEmptyKeys: { '': '', a: ['b'] },
+            stringifyOutput: {
+                brackets: '=&a[]=b',
+                indices: '=&a[0]=b',
+                repeat: '=&a=b'
+            },
+            noEmptyKeys: { a: ['b'] }
+        },
+        {
+            input: '=&a[]=b&a[]=c&a[2]=d',
+            withEmptyKeys: { '': '', a: ['b', 'c', 'd'] },
+            stringifyOutput: {
+                brackets: '=&a[]=b&a[]=c&a[]=d',
+                indices: '=&a[0]=b&a[1]=c&a[2]=d',
+                repeat: '=&a=b&a=c&a=d'
+            },
+            noEmptyKeys: { a: ['b', 'c', 'd'] }
+        },
+        {
+            input: '=a&=b',
+            withEmptyKeys: { '': ['a', 'b'] },
+            stringifyOutput: {
+                brackets: '[]=a&[]=b',
+                indices: '[0]=a&[1]=b',
+                repeat: '=a&=b'
+            },
+            noEmptyKeys: {}
+        },
+        {
+            input: '=a&foo=b',
+            withEmptyKeys: { '': 'a', foo: 'b' },
+            noEmptyKeys: { foo: 'b' },
+            stringifyOutput: {
+                brackets: '=a&foo=b',
+                indices: '=a&foo=b',
+                repeat: '=a&foo=b'
+            }
+        },
+        {
+            input: 'a[]=b&a=c&=',
+            withEmptyKeys: { '': '', a: ['b', 'c'] },
+            stringifyOutput: {
+                brackets: '=&a[]=b&a[]=c',
+                indices: '=&a[0]=b&a[1]=c',
+                repeat: '=&a=b&a=c'
+            },
+            noEmptyKeys: { a: ['b', 'c'] }
+        },
+        {
+            input: 'a[]=b&a=c&=',
+            withEmptyKeys: { '': '', a: ['b', 'c'] },
+            stringifyOutput: {
+                brackets: '=&a[]=b&a[]=c',
+                indices: '=&a[0]=b&a[1]=c',
+                repeat: '=&a=b&a=c'
+            },
+            noEmptyKeys: { a: ['b', 'c'] }
+        },
+        {
+            input: 'a[0]=b&a=c&=',
+            withEmptyKeys: { '': '', a: ['b', 'c'] },
+            stringifyOutput: {
+                brackets: '=&a[]=b&a[]=c',
+                indices: '=&a[0]=b&a[1]=c',
+                repeat: '=&a=b&a=c'
+            },
+            noEmptyKeys: { a: ['b', 'c'] }
+        },
+        {
+            input: 'a=b&a[]=c&=',
+            withEmptyKeys: { '': '', a: ['b', 'c'] },
+            stringifyOutput: {
+                brackets: '=&a[]=b&a[]=c',
+                indices: '=&a[0]=b&a[1]=c',
+                repeat: '=&a=b&a=c'
+            },
+            noEmptyKeys: { a: ['b', 'c'] }
+        },
+        {
+            input: 'a=b&a[0]=c&=',
+            withEmptyKeys: { '': '', a: ['b', 'c'] },
+            stringifyOutput: {
+                brackets: '=&a[]=b&a[]=c',
+                indices: '=&a[0]=b&a[1]=c',
+                repeat: '=&a=b&a=c'
+            },
+            noEmptyKeys: { a: ['b', 'c'] }
+        },
+        {
+            input: '[]=a&[]=b& []=1',
+            withEmptyKeys: { '': ['a', 'b'], ' ': ['1'] },
+            stringifyOutput: {
+                brackets: '[]=a&[]=b& []=1',
+                indices: '[0]=a&[1]=b& [0]=1',
+                repeat: '=a&=b& =1'
+            },
+            noEmptyKeys: { 0: 'a', 1: 'b', ' ': ['1'] }
+        },
+        {
+            input: '[0]=a&[1]=b&a[0]=1&a[1]=2',
+            withEmptyKeys: { '': ['a', 'b'], a: ['1', '2'] },
+            noEmptyKeys: { 0: 'a', 1: 'b', a: ['1', '2'] },
+            stringifyOutput: {
+                brackets: '[]=a&[]=b&a[]=1&a[]=2',
+                indices: '[0]=a&[1]=b&a[0]=1&a[1]=2',
+                repeat: '=a&=b&a=1&a=2'
+            }
+        },
+        {
+            input: '[deep]=a&[deep]=2',
+            withEmptyKeys: { '': { deep: ['a', '2'] }
+            },
+            stringifyOutput: {
+                brackets: '[deep][]=a&[deep][]=2',
+                indices: '[deep][0]=a&[deep][1]=2',
+                repeat: '[deep]=a&[deep]=2'
+            },
+            noEmptyKeys: { deep: ['a', '2'] }
+        },
+        {
+            input: '%5B0%5D=a&%5B1%5D=b',
+            withEmptyKeys: { '': ['a', 'b'] },
+            stringifyOutput: {
+                brackets: '[]=a&[]=b',
+                indices: '[0]=a&[1]=b',
+                repeat: '=a&=b'
+            },
+            noEmptyKeys: { 0: 'a', 1: 'b' }
+        }
+    ]
+};
diff --git a/backend/node_modules/qs/test/parse.js b/backend/node_modules/qs/test/parse.js
new file mode 100644
index 0000000..8a2f487
--- /dev/null
+++ b/backend/node_modules/qs/test/parse.js
@@ -0,0 +1,1170 @@
+'use strict';
+
+var test = require('tape');
+var hasPropertyDescriptors = require('has-property-descriptors')();
+var iconv = require('iconv-lite');
+var mockProperty = require('mock-property');
+var hasOverrideMistake = require('has-override-mistake')();
+var SaferBuffer = require('safer-buffer').Buffer;
+var v = require('es-value-fixtures');
+var inspect = require('object-inspect');
+var emptyTestCases = require('./empty-keys-cases').emptyTestCases;
+
+var qs = require('../');
+var utils = require('../lib/utils');
+
+test('parse()', function (t) {
+    t.test('parses a simple string', function (st) {
+        st.deepEqual(qs.parse('0=foo'), { 0: 'foo' });
+        st.deepEqual(qs.parse('foo=c++'), { foo: 'c  ' });
+        st.deepEqual(qs.parse('a[>=]=23'), { a: { '>=': '23' } });
+        st.deepEqual(qs.parse('a[<=>]==23'), { a: { '<=>': '=23' } });
+        st.deepEqual(qs.parse('a[==]=23'), { a: { '==': '23' } });
+        st.deepEqual(qs.parse('foo', { strictNullHandling: true }), { foo: null });
+        st.deepEqual(qs.parse('foo'), { foo: '' });
+        st.deepEqual(qs.parse('foo='), { foo: '' });
+        st.deepEqual(qs.parse('foo=bar'), { foo: 'bar' });
+        st.deepEqual(qs.parse(' foo = bar = baz '), { ' foo ': ' bar = baz ' });
+        st.deepEqual(qs.parse('foo=bar=baz'), { foo: 'bar=baz' });
+        st.deepEqual(qs.parse('foo=bar&bar=baz'), { foo: 'bar', bar: 'baz' });
+        st.deepEqual(qs.parse('foo2=bar2&baz2='), { foo2: 'bar2', baz2: '' });
+        st.deepEqual(qs.parse('foo=bar&baz', { strictNullHandling: true }), { foo: 'bar', baz: null });
+        st.deepEqual(qs.parse('foo=bar&baz'), { foo: 'bar', baz: '' });
+        st.deepEqual(qs.parse('cht=p3&chd=t:60,40&chs=250x100&chl=Hello|World'), {
+            cht: 'p3',
+            chd: 't:60,40',
+            chs: '250x100',
+            chl: 'Hello|World'
+        });
+        st.end();
+    });
+
+    t.test('comma: false', function (st) {
+        st.deepEqual(qs.parse('a[]=b&a[]=c'), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a[0]=b&a[1]=c'), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a=b,c'), { a: 'b,c' });
+        st.deepEqual(qs.parse('a=b&a=c'), { a: ['b', 'c'] });
+        st.end();
+    });
+
+    t.test('comma: true', function (st) {
+        st.deepEqual(qs.parse('a[]=b&a[]=c', { comma: true }), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a[0]=b&a[1]=c', { comma: true }), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a=b,c', { comma: true }), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a=b&a=c', { comma: true }), { a: ['b', 'c'] });
+        st.end();
+    });
+
+    t.test('allows enabling dot notation', function (st) {
+        st.deepEqual(qs.parse('a.b=c'), { 'a.b': 'c' });
+        st.deepEqual(qs.parse('a.b=c', { allowDots: true }), { a: { b: 'c' } });
+
+        st.end();
+    });
+
+    t.test('decode dot keys correctly', function (st) {
+        st.deepEqual(
+            qs.parse('name%252Eobj.first=John&name%252Eobj.last=Doe', { allowDots: false, decodeDotInKeys: false }),
+            { 'name%2Eobj.first': 'John', 'name%2Eobj.last': 'Doe' },
+            'with allowDots false and decodeDotInKeys false'
+        );
+        st.deepEqual(
+            qs.parse('name.obj.first=John&name.obj.last=Doe', { allowDots: true, decodeDotInKeys: false }),
+            { name: { obj: { first: 'John', last: 'Doe' } } },
+            'with allowDots false and decodeDotInKeys false'
+        );
+        st.deepEqual(
+            qs.parse('name%252Eobj.first=John&name%252Eobj.last=Doe', { allowDots: true, decodeDotInKeys: false }),
+            { 'name%2Eobj': { first: 'John', last: 'Doe' } },
+            'with allowDots true and decodeDotInKeys false'
+        );
+        st.deepEqual(
+            qs.parse('name%252Eobj.first=John&name%252Eobj.last=Doe', { allowDots: true, decodeDotInKeys: true }),
+            { 'name.obj': { first: 'John', last: 'Doe' } },
+            'with allowDots true and decodeDotInKeys true'
+        );
+
+        st.deepEqual(
+            qs.parse(
+                'name%252Eobj%252Esubobject.first%252Egodly%252Ename=John&name%252Eobj%252Esubobject.last=Doe',
+                { allowDots: false, decodeDotInKeys: false }
+            ),
+            { 'name%2Eobj%2Esubobject.first%2Egodly%2Ename': 'John', 'name%2Eobj%2Esubobject.last': 'Doe' },
+            'with allowDots false and decodeDotInKeys false'
+        );
+        st.deepEqual(
+            qs.parse(
+                'name.obj.subobject.first.godly.name=John&name.obj.subobject.last=Doe',
+                { allowDots: true, decodeDotInKeys: false }
+            ),
+            { name: { obj: { subobject: { first: { godly: { name: 'John' } }, last: 'Doe' } } } },
+            'with allowDots true and decodeDotInKeys false'
+        );
+        st.deepEqual(
+            qs.parse(
+                'name%252Eobj%252Esubobject.first%252Egodly%252Ename=John&name%252Eobj%252Esubobject.last=Doe',
+                { allowDots: true, decodeDotInKeys: true }
+            ),
+            { 'name.obj.subobject': { 'first.godly.name': 'John', last: 'Doe' } },
+            'with allowDots true and decodeDotInKeys true'
+        );
+        st.deepEqual(
+            qs.parse('name%252Eobj.first=John&name%252Eobj.last=Doe'),
+            { 'name%2Eobj.first': 'John', 'name%2Eobj.last': 'Doe' },
+            'with allowDots and decodeDotInKeys undefined'
+        );
+
+        st.end();
+    });
+
+    t.test('should decode dot in key of object, and allow enabling dot notation when decodeDotInKeys is set to true and allowDots is undefined', function (st) {
+        st.deepEqual(
+            qs.parse(
+                'name%252Eobj%252Esubobject.first%252Egodly%252Ename=John&name%252Eobj%252Esubobject.last=Doe',
+                { decodeDotInKeys: true }
+            ),
+            { 'name.obj.subobject': { 'first.godly.name': 'John', last: 'Doe' } },
+            'with allowDots undefined and decodeDotInKeys true'
+        );
+
+        st.end();
+    });
+
+    t.test('should throw when decodeDotInKeys is not of type boolean', function (st) {
+        st['throws'](
+            function () { qs.parse('foo[]&bar=baz', { decodeDotInKeys: 'foobar' }); },
+            TypeError
+        );
+
+        st['throws'](
+            function () { qs.parse('foo[]&bar=baz', { decodeDotInKeys: 0 }); },
+            TypeError
+        );
+        st['throws'](
+            function () { qs.parse('foo[]&bar=baz', { decodeDotInKeys: NaN }); },
+            TypeError
+        );
+
+        st['throws'](
+            function () { qs.parse('foo[]&bar=baz', { decodeDotInKeys: null }); },
+            TypeError
+        );
+
+        st.end();
+    });
+
+    t.test('allows empty arrays in obj values', function (st) {
+        st.deepEqual(qs.parse('foo[]&bar=baz', { allowEmptyArrays: true }), { foo: [], bar: 'baz' });
+        st.deepEqual(qs.parse('foo[]&bar=baz', { allowEmptyArrays: false }), { foo: [''], bar: 'baz' });
+
+        st.end();
+    });
+
+    t.test('should throw when allowEmptyArrays is not of type boolean', function (st) {
+        st['throws'](
+            function () { qs.parse('foo[]&bar=baz', { allowEmptyArrays: 'foobar' }); },
+            TypeError
+        );
+
+        st['throws'](
+            function () { qs.parse('foo[]&bar=baz', { allowEmptyArrays: 0 }); },
+            TypeError
+        );
+        st['throws'](
+            function () { qs.parse('foo[]&bar=baz', { allowEmptyArrays: NaN }); },
+            TypeError
+        );
+
+        st['throws'](
+            function () { qs.parse('foo[]&bar=baz', { allowEmptyArrays: null }); },
+            TypeError
+        );
+
+        st.end();
+    });
+
+    t.test('allowEmptyArrays + strictNullHandling', function (st) {
+        st.deepEqual(
+            qs.parse('testEmptyArray[]', { strictNullHandling: true, allowEmptyArrays: true }),
+            { testEmptyArray: [] }
+        );
+
+        st.end();
+    });
+
+    t.deepEqual(qs.parse('a[b]=c'), { a: { b: 'c' } }, 'parses a single nested string');
+    t.deepEqual(qs.parse('a[b][c]=d'), { a: { b: { c: 'd' } } }, 'parses a double nested string');
+    t.deepEqual(
+        qs.parse('a[b][c][d][e][f][g][h]=i'),
+        { a: { b: { c: { d: { e: { f: { '[g][h]': 'i' } } } } } } },
+        'defaults to a depth of 5'
+    );
+
+    t.test('only parses one level when depth = 1', function (st) {
+        st.deepEqual(qs.parse('a[b][c]=d', { depth: 1 }), { a: { b: { '[c]': 'd' } } });
+        st.deepEqual(qs.parse('a[b][c][d]=e', { depth: 1 }), { a: { b: { '[c][d]': 'e' } } });
+        st.end();
+    });
+
+    t.test('uses original key when depth = 0', function (st) {
+        st.deepEqual(qs.parse('a[0]=b&a[1]=c', { depth: 0 }), { 'a[0]': 'b', 'a[1]': 'c' });
+        st.deepEqual(qs.parse('a[0][0]=b&a[0][1]=c&a[1]=d&e=2', { depth: 0 }), { 'a[0][0]': 'b', 'a[0][1]': 'c', 'a[1]': 'd', e: '2' });
+        st.end();
+    });
+
+    t.test('uses original key when depth = false', function (st) {
+        st.deepEqual(qs.parse('a[0]=b&a[1]=c', { depth: false }), { 'a[0]': 'b', 'a[1]': 'c' });
+        st.deepEqual(qs.parse('a[0][0]=b&a[0][1]=c&a[1]=d&e=2', { depth: false }), { 'a[0][0]': 'b', 'a[0][1]': 'c', 'a[1]': 'd', e: '2' });
+        st.end();
+    });
+
+    t.deepEqual(qs.parse('a=b&a=c'), { a: ['b', 'c'] }, 'parses a simple array');
+
+    t.test('parses an explicit array', function (st) {
+        st.deepEqual(qs.parse('a[]=b'), { a: ['b'] });
+        st.deepEqual(qs.parse('a[]=b&a[]=c'), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a[]=b&a[]=c&a[]=d'), { a: ['b', 'c', 'd'] });
+        st.end();
+    });
+
+    t.test('parses a mix of simple and explicit arrays', function (st) {
+        st.deepEqual(qs.parse('a=b&a[]=c'), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a[]=b&a=c'), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a[0]=b&a=c'), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a=b&a[0]=c'), { a: ['b', 'c'] });
+
+        st.deepEqual(qs.parse('a[1]=b&a=c', { arrayLimit: 20 }), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a[]=b&a=c', { arrayLimit: 0 }), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a[]=b&a=c'), { a: ['b', 'c'] });
+
+        st.deepEqual(qs.parse('a=b&a[1]=c', { arrayLimit: 20 }), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a=b&a[]=c', { arrayLimit: 0 }), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a=b&a[]=c'), { a: ['b', 'c'] });
+
+        st.end();
+    });
+
+    t.test('parses a nested array', function (st) {
+        st.deepEqual(qs.parse('a[b][]=c&a[b][]=d'), { a: { b: ['c', 'd'] } });
+        st.deepEqual(qs.parse('a[>=]=25'), { a: { '>=': '25' } });
+        st.end();
+    });
+
+    t.test('allows to specify array indices', function (st) {
+        st.deepEqual(qs.parse('a[1]=c&a[0]=b&a[2]=d'), { a: ['b', 'c', 'd'] });
+        st.deepEqual(qs.parse('a[1]=c&a[0]=b'), { a: ['b', 'c'] });
+        st.deepEqual(qs.parse('a[1]=c', { arrayLimit: 20 }), { a: ['c'] });
+        st.deepEqual(qs.parse('a[1]=c', { arrayLimit: 0 }), { a: { 1: 'c' } });
+        st.deepEqual(qs.parse('a[1]=c'), { a: ['c'] });
+        st.end();
+    });
+
+    t.test('limits specific array indices to arrayLimit', function (st) {
+        st.deepEqual(qs.parse('a[20]=a', { arrayLimit: 20 }), { a: ['a'] });
+        st.deepEqual(qs.parse('a[21]=a', { arrayLimit: 20 }), { a: { 21: 'a' } });
+
+        st.deepEqual(qs.parse('a[20]=a'), { a: ['a'] });
+        st.deepEqual(qs.parse('a[21]=a'), { a: { 21: 'a' } });
+        st.end();
+    });
+
+    t.deepEqual(qs.parse('a[12b]=c'), { a: { '12b': 'c' } }, 'supports keys that begin with a number');
+
+    t.test('supports encoded = signs', function (st) {
+        st.deepEqual(qs.parse('he%3Dllo=th%3Dere'), { 'he=llo': 'th=ere' });
+        st.end();
+    });
+
+    t.test('is ok with url encoded strings', function (st) {
+        st.deepEqual(qs.parse('a[b%20c]=d'), { a: { 'b c': 'd' } });
+        st.deepEqual(qs.parse('a[b]=c%20d'), { a: { b: 'c d' } });
+        st.end();
+    });
+
+    t.test('allows brackets in the value', function (st) {
+        st.deepEqual(qs.parse('pets=["tobi"]'), { pets: '["tobi"]' });
+        st.deepEqual(qs.parse('operators=[">=", "<="]'), { operators: '[">=", "<="]' });
+        st.end();
+    });
+
+    t.test('allows empty values', function (st) {
+        st.deepEqual(qs.parse(''), {});
+        st.deepEqual(qs.parse(null), {});
+        st.deepEqual(qs.parse(undefined), {});
+        st.end();
+    });
+
+    t.test('transforms arrays to objects', function (st) {
+        st.deepEqual(qs.parse('foo[0]=bar&foo[bad]=baz'), { foo: { 0: 'bar', bad: 'baz' } });
+        st.deepEqual(qs.parse('foo[bad]=baz&foo[0]=bar'), { foo: { bad: 'baz', 0: 'bar' } });
+        st.deepEqual(qs.parse('foo[bad]=baz&foo[]=bar'), { foo: { bad: 'baz', 0: 'bar' } });
+        st.deepEqual(qs.parse('foo[]=bar&foo[bad]=baz'), { foo: { 0: 'bar', bad: 'baz' } });
+        st.deepEqual(qs.parse('foo[bad]=baz&foo[]=bar&foo[]=foo'), { foo: { bad: 'baz', 0: 'bar', 1: 'foo' } });
+        st.deepEqual(qs.parse('foo[0][a]=a&foo[0][b]=b&foo[1][a]=aa&foo[1][b]=bb'), { foo: [{ a: 'a', b: 'b' }, { a: 'aa', b: 'bb' }] });
+
+        st.deepEqual(qs.parse('a[]=b&a[t]=u&a[hasOwnProperty]=c', { allowPrototypes: false }), { a: { 0: 'b', t: 'u' } });
+        st.deepEqual(qs.parse('a[]=b&a[t]=u&a[hasOwnProperty]=c', { allowPrototypes: true }), { a: { 0: 'b', t: 'u', hasOwnProperty: 'c' } });
+        st.deepEqual(qs.parse('a[]=b&a[hasOwnProperty]=c&a[x]=y', { allowPrototypes: false }), { a: { 0: 'b', x: 'y' } });
+        st.deepEqual(qs.parse('a[]=b&a[hasOwnProperty]=c&a[x]=y', { allowPrototypes: true }), { a: { 0: 'b', hasOwnProperty: 'c', x: 'y' } });
+        st.end();
+    });
+
+    t.test('transforms arrays to objects (dot notation)', function (st) {
+        st.deepEqual(qs.parse('foo[0].baz=bar&fool.bad=baz', { allowDots: true }), { foo: [{ baz: 'bar' }], fool: { bad: 'baz' } });
+        st.deepEqual(qs.parse('foo[0].baz=bar&fool.bad.boo=baz', { allowDots: true }), { foo: [{ baz: 'bar' }], fool: { bad: { boo: 'baz' } } });
+        st.deepEqual(qs.parse('foo[0][0].baz=bar&fool.bad=baz', { allowDots: true }), { foo: [[{ baz: 'bar' }]], fool: { bad: 'baz' } });
+        st.deepEqual(qs.parse('foo[0].baz[0]=15&foo[0].bar=2', { allowDots: true }), { foo: [{ baz: ['15'], bar: '2' }] });
+        st.deepEqual(qs.parse('foo[0].baz[0]=15&foo[0].baz[1]=16&foo[0].bar=2', { allowDots: true }), { foo: [{ baz: ['15', '16'], bar: '2' }] });
+        st.deepEqual(qs.parse('foo.bad=baz&foo[0]=bar', { allowDots: true }), { foo: { bad: 'baz', 0: 'bar' } });
+        st.deepEqual(qs.parse('foo.bad=baz&foo[]=bar', { allowDots: true }), { foo: { bad: 'baz', 0: 'bar' } });
+        st.deepEqual(qs.parse('foo[]=bar&foo.bad=baz', { allowDots: true }), { foo: { 0: 'bar', bad: 'baz' } });
+        st.deepEqual(qs.parse('foo.bad=baz&foo[]=bar&foo[]=foo', { allowDots: true }), { foo: { bad: 'baz', 0: 'bar', 1: 'foo' } });
+        st.deepEqual(qs.parse('foo[0].a=a&foo[0].b=b&foo[1].a=aa&foo[1].b=bb', { allowDots: true }), { foo: [{ a: 'a', b: 'b' }, { a: 'aa', b: 'bb' }] });
+        st.end();
+    });
+
+    t.test('correctly prunes undefined values when converting an array to an object', function (st) {
+        st.deepEqual(qs.parse('a[2]=b&a[99999999]=c'), { a: { 2: 'b', 99999999: 'c' } });
+        st.end();
+    });
+
+    t.test('supports malformed uri characters', function (st) {
+        st.deepEqual(qs.parse('{%:%}', { strictNullHandling: true }), { '{%:%}': null });
+        st.deepEqual(qs.parse('{%:%}='), { '{%:%}': '' });
+        st.deepEqual(qs.parse('foo=%:%}'), { foo: '%:%}' });
+        st.end();
+    });
+
+    t.test('doesn\'t produce empty keys', function (st) {
+        st.deepEqual(qs.parse('_r=1&'), { _r: '1' });
+        st.end();
+    });
+
+    t.test('cannot access Object prototype', function (st) {
+        qs.parse('constructor[prototype][bad]=bad');
+        qs.parse('bad[constructor][prototype][bad]=bad');
+        st.equal(typeof Object.prototype.bad, 'undefined');
+        st.end();
+    });
+
+    t.test('parses arrays of objects', function (st) {
+        st.deepEqual(qs.parse('a[][b]=c'), { a: [{ b: 'c' }] });
+        st.deepEqual(qs.parse('a[0][b]=c'), { a: [{ b: 'c' }] });
+        st.end();
+    });
+
+    t.test('allows for empty strings in arrays', function (st) {
+        st.deepEqual(qs.parse('a[]=b&a[]=&a[]=c'), { a: ['b', '', 'c'] });
+
+        st.deepEqual(
+            qs.parse('a[0]=b&a[1]&a[2]=c&a[19]=', { strictNullHandling: true, arrayLimit: 20 }),
+            { a: ['b', null, 'c', ''] },
+            'with arrayLimit 20 + array indices: null then empty string works'
+        );
+        st.deepEqual(
+            qs.parse('a[]=b&a[]&a[]=c&a[]=', { strictNullHandling: true, arrayLimit: 0 }),
+            { a: ['b', null, 'c', ''] },
+            'with arrayLimit 0 + array brackets: null then empty string works'
+        );
+
+        st.deepEqual(
+            qs.parse('a[0]=b&a[1]=&a[2]=c&a[19]', { strictNullHandling: true, arrayLimit: 20 }),
+            { a: ['b', '', 'c', null] },
+            'with arrayLimit 20 + array indices: empty string then null works'
+        );
+        st.deepEqual(
+            qs.parse('a[]=b&a[]=&a[]=c&a[]', { strictNullHandling: true, arrayLimit: 0 }),
+            { a: ['b', '', 'c', null] },
+            'with arrayLimit 0 + array brackets: empty string then null works'
+        );
+
+        st.deepEqual(
+            qs.parse('a[]=&a[]=b&a[]=c'),
+            { a: ['', 'b', 'c'] },
+            'array brackets: empty strings work'
+        );
+        st.end();
+    });
+
+    t.test('compacts sparse arrays', function (st) {
+        st.deepEqual(qs.parse('a[10]=1&a[2]=2', { arrayLimit: 20 }), { a: ['2', '1'] });
+        st.deepEqual(qs.parse('a[1][b][2][c]=1', { arrayLimit: 20 }), { a: [{ b: [{ c: '1' }] }] });
+        st.deepEqual(qs.parse('a[1][2][3][c]=1', { arrayLimit: 20 }), { a: [[[{ c: '1' }]]] });
+        st.deepEqual(qs.parse('a[1][2][3][c][1]=1', { arrayLimit: 20 }), { a: [[[{ c: ['1'] }]]] });
+        st.end();
+    });
+
+    t.test('parses sparse arrays', function (st) {
+        /* eslint no-sparse-arrays: 0 */
+        st.deepEqual(qs.parse('a[4]=1&a[1]=2', { allowSparse: true }), { a: [, '2', , , '1'] });
+        st.deepEqual(qs.parse('a[1][b][2][c]=1', { allowSparse: true }), { a: [, { b: [, , { c: '1' }] }] });
+        st.deepEqual(qs.parse('a[1][2][3][c]=1', { allowSparse: true }), { a: [, [, , [, , , { c: '1' }]]] });
+        st.deepEqual(qs.parse('a[1][2][3][c][1]=1', { allowSparse: true }), { a: [, [, , [, , , { c: [, '1'] }]]] });
+        st.end();
+    });
+
+    t.test('parses semi-parsed strings', function (st) {
+        st.deepEqual(qs.parse({ 'a[b]': 'c' }), { a: { b: 'c' } });
+        st.deepEqual(qs.parse({ 'a[b]': 'c', 'a[d]': 'e' }), { a: { b: 'c', d: 'e' } });
+        st.end();
+    });
+
+    t.test('parses buffers correctly', function (st) {
+        var b = SaferBuffer.from('test');
+        st.deepEqual(qs.parse({ a: b }), { a: b });
+        st.end();
+    });
+
+    t.test('parses jquery-param strings', function (st) {
+        // readable = 'filter[0][]=int1&filter[0][]==&filter[0][]=77&filter[]=and&filter[2][]=int2&filter[2][]==&filter[2][]=8'
+        var encoded = 'filter%5B0%5D%5B%5D=int1&filter%5B0%5D%5B%5D=%3D&filter%5B0%5D%5B%5D=77&filter%5B%5D=and&filter%5B2%5D%5B%5D=int2&filter%5B2%5D%5B%5D=%3D&filter%5B2%5D%5B%5D=8';
+        var expected = { filter: [['int1', '=', '77'], 'and', ['int2', '=', '8']] };
+        st.deepEqual(qs.parse(encoded), expected);
+        st.end();
+    });
+
+    t.test('continues parsing when no parent is found', function (st) {
+        st.deepEqual(qs.parse('[]=&a=b'), { 0: '', a: 'b' });
+        st.deepEqual(qs.parse('[]&a=b', { strictNullHandling: true }), { 0: null, a: 'b' });
+        st.deepEqual(qs.parse('[foo]=bar'), { foo: 'bar' });
+        st.end();
+    });
+
+    t.test('does not error when parsing a very long array', function (st) {
+        var str = 'a[]=a';
+        while (Buffer.byteLength(str) < 128 * 1024) {
+            str = str + '&' + str;
+        }
+
+        st.doesNotThrow(function () {
+            qs.parse(str);
+        });
+
+        st.end();
+    });
+
+    t.test('should not throw when a native prototype has an enumerable property', function (st) {
+        st.intercept(Object.prototype, 'crash', { value: '' });
+        st.intercept(Array.prototype, 'crash', { value: '' });
+
+        st.doesNotThrow(qs.parse.bind(null, 'a=b'));
+        st.deepEqual(qs.parse('a=b'), { a: 'b' });
+        st.doesNotThrow(qs.parse.bind(null, 'a[][b]=c'));
+        st.deepEqual(qs.parse('a[][b]=c'), { a: [{ b: 'c' }] });
+
+        st.end();
+    });
+
+    t.test('parses a string with an alternative string delimiter', function (st) {
+        st.deepEqual(qs.parse('a=b;c=d', { delimiter: ';' }), { a: 'b', c: 'd' });
+        st.end();
+    });
+
+    t.test('parses a string with an alternative RegExp delimiter', function (st) {
+        st.deepEqual(qs.parse('a=b; c=d', { delimiter: /[;,] */ }), { a: 'b', c: 'd' });
+        st.end();
+    });
+
+    t.test('does not use non-splittable objects as delimiters', function (st) {
+        st.deepEqual(qs.parse('a=b&c=d', { delimiter: true }), { a: 'b', c: 'd' });
+        st.end();
+    });
+
+    t.test('allows overriding parameter limit', function (st) {
+        st.deepEqual(qs.parse('a=b&c=d', { parameterLimit: 1 }), { a: 'b' });
+        st.end();
+    });
+
+    t.test('allows setting the parameter limit to Infinity', function (st) {
+        st.deepEqual(qs.parse('a=b&c=d', { parameterLimit: Infinity }), { a: 'b', c: 'd' });
+        st.end();
+    });
+
+    t.test('allows overriding array limit', function (st) {
+        st.deepEqual(qs.parse('a[0]=b', { arrayLimit: -1 }), { a: { 0: 'b' } });
+        st.deepEqual(qs.parse('a[0]=b', { arrayLimit: 0 }), { a: ['b'] });
+
+        st.deepEqual(qs.parse('a[-1]=b', { arrayLimit: -1 }), { a: { '-1': 'b' } });
+        st.deepEqual(qs.parse('a[-1]=b', { arrayLimit: 0 }), { a: { '-1': 'b' } });
+
+        st.deepEqual(qs.parse('a[0]=b&a[1]=c', { arrayLimit: -1 }), { a: { 0: 'b', 1: 'c' } });
+        st.deepEqual(qs.parse('a[0]=b&a[1]=c', { arrayLimit: 0 }), { a: { 0: 'b', 1: 'c' } });
+
+        st.end();
+    });
+
+    t.test('allows disabling array parsing', function (st) {
+        var indices = qs.parse('a[0]=b&a[1]=c', { parseArrays: false });
+        st.deepEqual(indices, { a: { 0: 'b', 1: 'c' } });
+        st.equal(Array.isArray(indices.a), false, 'parseArrays:false, indices case is not an array');
+
+        var emptyBrackets = qs.parse('a[]=b', { parseArrays: false });
+        st.deepEqual(emptyBrackets, { a: { 0: 'b' } });
+        st.equal(Array.isArray(emptyBrackets.a), false, 'parseArrays:false, empty brackets case is not an array');
+
+        st.end();
+    });
+
+    t.test('allows for query string prefix', function (st) {
+        st.deepEqual(qs.parse('?foo=bar', { ignoreQueryPrefix: true }), { foo: 'bar' });
+        st.deepEqual(qs.parse('foo=bar', { ignoreQueryPrefix: true }), { foo: 'bar' });
+        st.deepEqual(qs.parse('?foo=bar', { ignoreQueryPrefix: false }), { '?foo': 'bar' });
+
+        st.end();
+    });
+
+    t.test('parses an object', function (st) {
+        var input = {
+            'user[name]': { 'pop[bob]': 3 },
+            'user[email]': null
+        };
+
+        var expected = {
+            user: {
+                name: { 'pop[bob]': 3 },
+                email: null
+            }
+        };
+
+        var result = qs.parse(input);
+
+        st.deepEqual(result, expected);
+        st.end();
+    });
+
+    t.test('parses string with comma as array divider', function (st) {
+        st.deepEqual(qs.parse('foo=bar,tee', { comma: true }), { foo: ['bar', 'tee'] });
+        st.deepEqual(qs.parse('foo[bar]=coffee,tee', { comma: true }), { foo: { bar: ['coffee', 'tee'] } });
+        st.deepEqual(qs.parse('foo=', { comma: true }), { foo: '' });
+        st.deepEqual(qs.parse('foo', { comma: true }), { foo: '' });
+        st.deepEqual(qs.parse('foo', { comma: true, strictNullHandling: true }), { foo: null });
+
+        // test cases inversed from from stringify tests
+        st.deepEqual(qs.parse('a[0]=c'), { a: ['c'] });
+        st.deepEqual(qs.parse('a[]=c'), { a: ['c'] });
+        st.deepEqual(qs.parse('a[]=c', { comma: true }), { a: ['c'] });
+
+        st.deepEqual(qs.parse('a[0]=c&a[1]=d'), { a: ['c', 'd'] });
+        st.deepEqual(qs.parse('a[]=c&a[]=d'), { a: ['c', 'd'] });
+        st.deepEqual(qs.parse('a=c,d', { comma: true }), { a: ['c', 'd'] });
+
+        st.end();
+    });
+
+    t.test('parses values with comma as array divider', function (st) {
+        st.deepEqual(qs.parse({ foo: 'bar,tee' }, { comma: false }), { foo: 'bar,tee' });
+        st.deepEqual(qs.parse({ foo: 'bar,tee' }, { comma: true }), { foo: ['bar', 'tee'] });
+        st.end();
+    });
+
+    t.test('use number decoder, parses string that has one number with comma option enabled', function (st) {
+        var decoder = function (str, defaultDecoder, charset, type) {
+            if (!isNaN(Number(str))) {
+                return parseFloat(str);
+            }
+            return defaultDecoder(str, defaultDecoder, charset, type);
+        };
+
+        st.deepEqual(qs.parse('foo=1', { comma: true, decoder: decoder }), { foo: 1 });
+        st.deepEqual(qs.parse('foo=0', { comma: true, decoder: decoder }), { foo: 0 });
+
+        st.end();
+    });
+
+    t.test('parses brackets holds array of arrays when having two parts of strings with comma as array divider', function (st) {
+        st.deepEqual(qs.parse('foo[]=1,2,3&foo[]=4,5,6', { comma: true }), { foo: [['1', '2', '3'], ['4', '5', '6']] });
+        st.deepEqual(qs.parse('foo[]=1,2,3&foo[]=', { comma: true }), { foo: [['1', '2', '3'], ''] });
+        st.deepEqual(qs.parse('foo[]=1,2,3&foo[]=,', { comma: true }), { foo: [['1', '2', '3'], ['', '']] });
+        st.deepEqual(qs.parse('foo[]=1,2,3&foo[]=a', { comma: true }), { foo: [['1', '2', '3'], 'a'] });
+
+        st.end();
+    });
+
+    t.test('parses url-encoded brackets holds array of arrays when having two parts of strings with comma as array divider', function (st) {
+        st.deepEqual(qs.parse('foo%5B%5D=1,2,3&foo%5B%5D=4,5,6', { comma: true }), { foo: [['1', '2', '3'], ['4', '5', '6']] });
+        st.deepEqual(qs.parse('foo%5B%5D=1,2,3&foo%5B%5D=', { comma: true }), { foo: [['1', '2', '3'], ''] });
+        st.deepEqual(qs.parse('foo%5B%5D=1,2,3&foo%5B%5D=,', { comma: true }), { foo: [['1', '2', '3'], ['', '']] });
+        st.deepEqual(qs.parse('foo%5B%5D=1,2,3&foo%5B%5D=a', { comma: true }), { foo: [['1', '2', '3'], 'a'] });
+
+        st.end();
+    });
+
+    t.test('parses comma delimited array while having percent-encoded comma treated as normal text', function (st) {
+        st.deepEqual(qs.parse('foo=a%2Cb', { comma: true }), { foo: 'a,b' });
+        st.deepEqual(qs.parse('foo=a%2C%20b,d', { comma: true }), { foo: ['a, b', 'd'] });
+        st.deepEqual(qs.parse('foo=a%2C%20b,c%2C%20d', { comma: true }), { foo: ['a, b', 'c, d'] });
+
+        st.end();
+    });
+
+    t.test('parses an object in dot notation', function (st) {
+        var input = {
+            'user.name': { 'pop[bob]': 3 },
+            'user.email.': null
+        };
+
+        var expected = {
+            user: {
+                name: { 'pop[bob]': 3 },
+                email: null
+            }
+        };
+
+        var result = qs.parse(input, { allowDots: true });
+
+        st.deepEqual(result, expected);
+        st.end();
+    });
+
+    t.test('parses an object and not child values', function (st) {
+        var input = {
+            'user[name]': { 'pop[bob]': { test: 3 } },
+            'user[email]': null
+        };
+
+        var expected = {
+            user: {
+                name: { 'pop[bob]': { test: 3 } },
+                email: null
+            }
+        };
+
+        var result = qs.parse(input);
+
+        st.deepEqual(result, expected);
+        st.end();
+    });
+
+    t.test('does not blow up when Buffer global is missing', function (st) {
+        var restore = mockProperty(global, 'Buffer', { 'delete': true });
+
+        var result = qs.parse('a=b&c=d');
+
+        restore();
+
+        st.deepEqual(result, { a: 'b', c: 'd' });
+        st.end();
+    });
+
+    t.test('does not crash when parsing circular references', function (st) {
+        var a = {};
+        a.b = a;
+
+        var parsed;
+
+        st.doesNotThrow(function () {
+            parsed = qs.parse({ 'foo[bar]': 'baz', 'foo[baz]': a });
+        });
+
+        st.equal('foo' in parsed, true, 'parsed has "foo" property');
+        st.equal('bar' in parsed.foo, true);
+        st.equal('baz' in parsed.foo, true);
+        st.equal(parsed.foo.bar, 'baz');
+        st.deepEqual(parsed.foo.baz, a);
+        st.end();
+    });
+
+    t.test('does not crash when parsing deep objects', function (st) {
+        var parsed;
+        var str = 'foo';
+
+        for (var i = 0; i < 5000; i++) {
+            str += '[p]';
+        }
+
+        str += '=bar';
+
+        st.doesNotThrow(function () {
+            parsed = qs.parse(str, { depth: 5000 });
+        });
+
+        st.equal('foo' in parsed, true, 'parsed has "foo" property');
+
+        var depth = 0;
+        var ref = parsed.foo;
+        while ((ref = ref.p)) {
+            depth += 1;
+        }
+
+        st.equal(depth, 5000, 'parsed is 5000 properties deep');
+
+        st.end();
+    });
+
+    t.test('parses null objects correctly', { skip: !Object.create }, function (st) {
+        var a = Object.create(null);
+        a.b = 'c';
+
+        st.deepEqual(qs.parse(a), { b: 'c' });
+        var result = qs.parse({ a: a });
+        st.equal('a' in result, true, 'result has "a" property');
+        st.deepEqual(result.a, a);
+        st.end();
+    });
+
+    t.test('parses dates correctly', function (st) {
+        var now = new Date();
+        st.deepEqual(qs.parse({ a: now }), { a: now });
+        st.end();
+    });
+
+    t.test('parses regular expressions correctly', function (st) {
+        var re = /^test$/;
+        st.deepEqual(qs.parse({ a: re }), { a: re });
+        st.end();
+    });
+
+    t.test('does not allow overwriting prototype properties', function (st) {
+        st.deepEqual(qs.parse('a[hasOwnProperty]=b', { allowPrototypes: false }), {});
+        st.deepEqual(qs.parse('hasOwnProperty=b', { allowPrototypes: false }), {});
+
+        st.deepEqual(
+            qs.parse('toString', { allowPrototypes: false }),
+            {},
+            'bare "toString" results in {}'
+        );
+
+        st.end();
+    });
+
+    t.test('can allow overwriting prototype properties', function (st) {
+        st.deepEqual(qs.parse('a[hasOwnProperty]=b', { allowPrototypes: true }), { a: { hasOwnProperty: 'b' } });
+        st.deepEqual(qs.parse('hasOwnProperty=b', { allowPrototypes: true }), { hasOwnProperty: 'b' });
+
+        st.deepEqual(
+            qs.parse('toString', { allowPrototypes: true }),
+            { toString: '' },
+            'bare "toString" results in { toString: "" }'
+        );
+
+        st.end();
+    });
+
+    t.test('does not crash when the global Object prototype is frozen', { skip: !hasPropertyDescriptors || !hasOverrideMistake }, function (st) {
+        // We can't actually freeze the global Object prototype as that will interfere with other tests, and once an object is frozen, it
+        // can't be unfrozen. Instead, we add a new non-writable property to simulate this.
+        st.teardown(mockProperty(Object.prototype, 'frozenProp', { value: 'foo', nonWritable: true, nonEnumerable: true }));
+
+        st['throws'](
+            function () {
+                var obj = {};
+                obj.frozenProp = 'bar';
+            },
+            // node < 6 has a different error message
+            /^TypeError: Cannot assign to read only property 'frozenProp' of (?:object '#<Object>'|#<Object>)/,
+            'regular assignment of an inherited non-writable property throws'
+        );
+
+        var parsed;
+        st.doesNotThrow(
+            function () {
+                parsed = qs.parse('frozenProp', { allowPrototypes: false });
+            },
+            'parsing a nonwritable Object.prototype property does not throw'
+        );
+
+        st.deepEqual(parsed, {}, 'bare "frozenProp" results in {}');
+
+        st.end();
+    });
+
+    t.test('params starting with a closing bracket', function (st) {
+        st.deepEqual(qs.parse(']=toString'), { ']': 'toString' });
+        st.deepEqual(qs.parse(']]=toString'), { ']]': 'toString' });
+        st.deepEqual(qs.parse(']hello]=toString'), { ']hello]': 'toString' });
+        st.end();
+    });
+
+    t.test('params starting with a starting bracket', function (st) {
+        st.deepEqual(qs.parse('[=toString'), { '[': 'toString' });
+        st.deepEqual(qs.parse('[[=toString'), { '[[': 'toString' });
+        st.deepEqual(qs.parse('[hello[=toString'), { '[hello[': 'toString' });
+        st.end();
+    });
+
+    t.test('add keys to objects', function (st) {
+        st.deepEqual(
+            qs.parse('a[b]=c&a=d'),
+            { a: { b: 'c', d: true } },
+            'can add keys to objects'
+        );
+
+        st.deepEqual(
+            qs.parse('a[b]=c&a=toString'),
+            { a: { b: 'c' } },
+            'can not overwrite prototype'
+        );
+
+        st.deepEqual(
+            qs.parse('a[b]=c&a=toString', { allowPrototypes: true }),
+            { a: { b: 'c', toString: true } },
+            'can overwrite prototype with allowPrototypes true'
+        );
+
+        st.deepEqual(
+            qs.parse('a[b]=c&a=toString', { plainObjects: true }),
+            { __proto__: null, a: { __proto__: null, b: 'c', toString: true } },
+            'can overwrite prototype with plainObjects true'
+        );
+
+        st.end();
+    });
+
+    t.test('dunder proto is ignored', function (st) {
+        var payload = 'categories[__proto__]=login&categories[__proto__]&categories[length]=42';
+        var result = qs.parse(payload, { allowPrototypes: true });
+
+        st.deepEqual(
+            result,
+            {
+                categories: {
+                    length: '42'
+                }
+            },
+            'silent [[Prototype]] payload'
+        );
+
+        var plainResult = qs.parse(payload, { allowPrototypes: true, plainObjects: true });
+
+        st.deepEqual(
+            plainResult,
+            {
+                __proto__: null,
+                categories: {
+                    __proto__: null,
+                    length: '42'
+                }
+            },
+            'silent [[Prototype]] payload: plain objects'
+        );
+
+        var query = qs.parse('categories[__proto__]=cats&categories[__proto__]=dogs&categories[some][json]=toInject', { allowPrototypes: true });
+
+        st.notOk(Array.isArray(query.categories), 'is not an array');
+        st.notOk(query.categories instanceof Array, 'is not instanceof an array');
+        st.deepEqual(query.categories, { some: { json: 'toInject' } });
+        st.equal(JSON.stringify(query.categories), '{"some":{"json":"toInject"}}', 'stringifies as a non-array');
+
+        st.deepEqual(
+            qs.parse('foo[__proto__][hidden]=value&foo[bar]=stuffs', { allowPrototypes: true }),
+            {
+                foo: {
+                    bar: 'stuffs'
+                }
+            },
+            'hidden values'
+        );
+
+        st.deepEqual(
+            qs.parse('foo[__proto__][hidden]=value&foo[bar]=stuffs', { allowPrototypes: true, plainObjects: true }),
+            {
+                __proto__: null,
+                foo: {
+                    __proto__: null,
+                    bar: 'stuffs'
+                }
+            },
+            'hidden values: plain objects'
+        );
+
+        st.end();
+    });
+
+    t.test('can return null objects', { skip: !Object.create }, function (st) {
+        var expected = Object.create(null);
+        expected.a = Object.create(null);
+        expected.a.b = 'c';
+        expected.a.hasOwnProperty = 'd';
+        st.deepEqual(qs.parse('a[b]=c&a[hasOwnProperty]=d', { plainObjects: true }), expected);
+        st.deepEqual(qs.parse(null, { plainObjects: true }), Object.create(null));
+        var expectedArray = Object.create(null);
+        expectedArray.a = Object.create(null);
+        expectedArray.a[0] = 'b';
+        expectedArray.a.c = 'd';
+        st.deepEqual(qs.parse('a[]=b&a[c]=d', { plainObjects: true }), expectedArray);
+        st.end();
+    });
+
+    t.test('can parse with custom encoding', function (st) {
+        st.deepEqual(qs.parse('%8c%a7=%91%e5%8d%e3%95%7b', {
+            decoder: function (str) {
+                var reg = /%([0-9A-F]{2})/ig;
+                var result = [];
+                var parts = reg.exec(str);
+                while (parts) {
+                    result.push(parseInt(parts[1], 16));
+                    parts = reg.exec(str);
+                }
+                return String(iconv.decode(SaferBuffer.from(result), 'shift_jis'));
+            }
+        }), { 県: '大阪府' });
+        st.end();
+    });
+
+    t.test('receives the default decoder as a second argument', function (st) {
+        st.plan(1);
+        qs.parse('a', {
+            decoder: function (str, defaultDecoder) {
+                st.equal(defaultDecoder, utils.decode);
+            }
+        });
+        st.end();
+    });
+
+    t.test('throws error with wrong decoder', function (st) {
+        st['throws'](function () {
+            qs.parse({}, { decoder: 'string' });
+        }, new TypeError('Decoder has to be a function.'));
+        st.end();
+    });
+
+    t.test('does not mutate the options argument', function (st) {
+        var options = {};
+        qs.parse('a[b]=true', options);
+        st.deepEqual(options, {});
+        st.end();
+    });
+
+    t.test('throws if an invalid charset is specified', function (st) {
+        st['throws'](function () {
+            qs.parse('a=b', { charset: 'foobar' });
+        }, new TypeError('The charset option must be either utf-8, iso-8859-1, or undefined'));
+        st.end();
+    });
+
+    t.test('parses an iso-8859-1 string if asked to', function (st) {
+        st.deepEqual(qs.parse('%A2=%BD', { charset: 'iso-8859-1' }), { '¢': '½' });
+        st.end();
+    });
+
+    var urlEncodedCheckmarkInUtf8 = '%E2%9C%93';
+    var urlEncodedOSlashInUtf8 = '%C3%B8';
+    var urlEncodedNumCheckmark = '%26%2310003%3B';
+    var urlEncodedNumSmiley = '%26%239786%3B';
+
+    t.test('prefers an utf-8 charset specified by the utf8 sentinel to a default charset of iso-8859-1', function (st) {
+        st.deepEqual(qs.parse('utf8=' + urlEncodedCheckmarkInUtf8 + '&' + urlEncodedOSlashInUtf8 + '=' + urlEncodedOSlashInUtf8, { charsetSentinel: true, charset: 'iso-8859-1' }), { ø: 'ø' });
+        st.end();
+    });
+
+    t.test('prefers an iso-8859-1 charset specified by the utf8 sentinel to a default charset of utf-8', function (st) {
+        st.deepEqual(qs.parse('utf8=' + urlEncodedNumCheckmark + '&' + urlEncodedOSlashInUtf8 + '=' + urlEncodedOSlashInUtf8, { charsetSentinel: true, charset: 'utf-8' }), { 'ø': 'ø' });
+        st.end();
+    });
+
+    t.test('does not require the utf8 sentinel to be defined before the parameters whose decoding it affects', function (st) {
+        st.deepEqual(qs.parse('a=' + urlEncodedOSlashInUtf8 + '&utf8=' + urlEncodedNumCheckmark, { charsetSentinel: true, charset: 'utf-8' }), { a: 'ø' });
+        st.end();
+    });
+
+    t.test('should ignore an utf8 sentinel with an unknown value', function (st) {
+        st.deepEqual(qs.parse('utf8=foo&' + urlEncodedOSlashInUtf8 + '=' + urlEncodedOSlashInUtf8, { charsetSentinel: true, charset: 'utf-8' }), { ø: 'ø' });
+        st.end();
+    });
+
+    t.test('uses the utf8 sentinel to switch to utf-8 when no default charset is given', function (st) {
+        st.deepEqual(qs.parse('utf8=' + urlEncodedCheckmarkInUtf8 + '&' + urlEncodedOSlashInUtf8 + '=' + urlEncodedOSlashInUtf8, { charsetSentinel: true }), { ø: 'ø' });
+        st.end();
+    });
+
+    t.test('uses the utf8 sentinel to switch to iso-8859-1 when no default charset is given', function (st) {
+        st.deepEqual(qs.parse('utf8=' + urlEncodedNumCheckmark + '&' + urlEncodedOSlashInUtf8 + '=' + urlEncodedOSlashInUtf8, { charsetSentinel: true }), { 'ø': 'ø' });
+        st.end();
+    });
+
+    t.test('interprets numeric entities in iso-8859-1 when `interpretNumericEntities`', function (st) {
+        st.deepEqual(qs.parse('foo=' + urlEncodedNumSmiley, { charset: 'iso-8859-1', interpretNumericEntities: true }), { foo: '☺' });
+        st.end();
+    });
+
+    t.test('handles a custom decoder returning `null`, in the `iso-8859-1` charset, when `interpretNumericEntities`', function (st) {
+        st.deepEqual(qs.parse('foo=&bar=' + urlEncodedNumSmiley, {
+            charset: 'iso-8859-1',
+            decoder: function (str, defaultDecoder, charset) {
+                return str ? defaultDecoder(str, defaultDecoder, charset) : null;
+            },
+            interpretNumericEntities: true
+        }), { foo: null, bar: '☺' });
+        st.end();
+    });
+
+    t.test('does not interpret numeric entities in iso-8859-1 when `interpretNumericEntities` is absent', function (st) {
+        st.deepEqual(qs.parse('foo=' + urlEncodedNumSmiley, { charset: 'iso-8859-1' }), { foo: '&#9786;' });
+        st.end();
+    });
+
+    t.test('does not interpret numeric entities when the charset is utf-8, even when `interpretNumericEntities`', function (st) {
+        st.deepEqual(qs.parse('foo=' + urlEncodedNumSmiley, { charset: 'utf-8', interpretNumericEntities: true }), { foo: '&#9786;' });
+        st.end();
+    });
+
+    t.test('does not interpret %uXXXX syntax in iso-8859-1 mode', function (st) {
+        st.deepEqual(qs.parse('%u263A=%u263A', { charset: 'iso-8859-1' }), { '%u263A': '%u263A' });
+        st.end();
+    });
+
+    t.test('allows for decoding keys and values differently', function (st) {
+        var decoder = function (str, defaultDecoder, charset, type) {
+            if (type === 'key') {
+                return defaultDecoder(str, defaultDecoder, charset, type).toLowerCase();
+            }
+            if (type === 'value') {
+                return defaultDecoder(str, defaultDecoder, charset, type).toUpperCase();
+            }
+            throw 'this should never happen! type: ' + type;
+        };
+
+        st.deepEqual(qs.parse('KeY=vAlUe', { decoder: decoder }), { key: 'VALUE' });
+        st.end();
+    });
+
+    t.end();
+});
+
+test('parses empty keys', function (t) {
+    emptyTestCases.forEach(function (testCase) {
+        t.test('skips empty string key with ' + testCase.input, function (st) {
+            st.deepEqual(qs.parse(testCase.input), testCase.noEmptyKeys);
+
+            st.end();
+        });
+    });
+});
+
+test('`duplicates` option', function (t) {
+    v.nonStrings.concat('not a valid option').forEach(function (invalidOption) {
+        if (typeof invalidOption !== 'undefined') {
+            t['throws'](
+                function () { qs.parse('', { duplicates: invalidOption }); },
+                TypeError,
+                'throws on invalid option: ' + inspect(invalidOption)
+            );
+        }
+    });
+
+    t.deepEqual(
+        qs.parse('foo=bar&foo=baz'),
+        { foo: ['bar', 'baz'] },
+        'duplicates: default, combine'
+    );
+
+    t.deepEqual(
+        qs.parse('foo=bar&foo=baz', { duplicates: 'combine' }),
+        { foo: ['bar', 'baz'] },
+        'duplicates: combine'
+    );
+
+    t.deepEqual(
+        qs.parse('foo=bar&foo=baz', { duplicates: 'first' }),
+        { foo: 'bar' },
+        'duplicates: first'
+    );
+
+    t.deepEqual(
+        qs.parse('foo=bar&foo=baz', { duplicates: 'last' }),
+        { foo: 'baz' },
+        'duplicates: last'
+    );
+
+    t.end();
+});
+
+test('qs strictDepth option - throw cases', function (t) {
+    t.test('throws an exception when depth exceeds the limit with strictDepth: true', function (st) {
+        st['throws'](
+            function () {
+                qs.parse('a[b][c][d][e][f][g][h][i]=j', { depth: 1, strictDepth: true });
+            },
+            RangeError,
+            'Should throw RangeError'
+        );
+        st.end();
+    });
+
+    t.test('throws an exception for multiple nested arrays with strictDepth: true', function (st) {
+        st['throws'](
+            function () {
+                qs.parse('a[0][1][2][3][4]=b', { depth: 3, strictDepth: true });
+            },
+            RangeError,
+            'Should throw RangeError'
+        );
+        st.end();
+    });
+
+    t.test('throws an exception for nested objects and arrays with strictDepth: true', function (st) {
+        st['throws'](
+            function () {
+                qs.parse('a[b][c][0][d][e]=f', { depth: 3, strictDepth: true });
+            },
+            RangeError,
+            'Should throw RangeError'
+        );
+        st.end();
+    });
+
+    t.test('throws an exception for different types of values with strictDepth: true', function (st) {
+        st['throws'](
+            function () {
+                qs.parse('a[b][c][d][e]=true&a[b][c][d][f]=42', { depth: 3, strictDepth: true });
+            },
+            RangeError,
+            'Should throw RangeError'
+        );
+        st.end();
+    });
+
+});
+
+test('qs strictDepth option - non-throw cases', function (t) {
+    t.test('when depth is 0 and strictDepth true, do not throw', function (st) {
+        st.doesNotThrow(
+            function () {
+                qs.parse('a[b][c][d][e]=true&a[b][c][d][f]=42', { depth: 0, strictDepth: true });
+            },
+            RangeError,
+            'Should not throw RangeError'
+        );
+        st.end();
+    });
+
+    t.test('parses successfully when depth is within the limit with strictDepth: true', function (st) {
+        st.doesNotThrow(
+            function () {
+                var result = qs.parse('a[b]=c', { depth: 1, strictDepth: true });
+                st.deepEqual(result, { a: { b: 'c' } }, 'Should parse correctly');
+            }
+        );
+        st.end();
+    });
+
+    t.test('does not throw an exception when depth exceeds the limit with strictDepth: false', function (st) {
+        st.doesNotThrow(
+            function () {
+                var result = qs.parse('a[b][c][d][e][f][g][h][i]=j', { depth: 1 });
+                st.deepEqual(result, { a: { b: { '[c][d][e][f][g][h][i]': 'j' } } }, 'Should parse with depth limit');
+            }
+        );
+        st.end();
+    });
+
+    t.test('parses successfully when depth is within the limit with strictDepth: false', function (st) {
+        st.doesNotThrow(
+            function () {
+                var result = qs.parse('a[b]=c', { depth: 1 });
+                st.deepEqual(result, { a: { b: 'c' } }, 'Should parse correctly');
+            }
+        );
+        st.end();
+    });
+
+    t.test('does not throw when depth is exactly at the limit with strictDepth: true', function (st) {
+        st.doesNotThrow(
+            function () {
+                var result = qs.parse('a[b][c]=d', { depth: 2, strictDepth: true });
+                st.deepEqual(result, { a: { b: { c: 'd' } } }, 'Should parse correctly');
+            }
+        );
+        st.end();
+    });
+});
diff --git a/backend/node_modules/qs/test/stringify.js b/backend/node_modules/qs/test/stringify.js
new file mode 100644
index 0000000..12b1c71
--- /dev/null
+++ b/backend/node_modules/qs/test/stringify.js
@@ -0,0 +1,1298 @@
+'use strict';
+
+var test = require('tape');
+var qs = require('../');
+var utils = require('../lib/utils');
+var iconv = require('iconv-lite');
+var SaferBuffer = require('safer-buffer').Buffer;
+var hasSymbols = require('has-symbols');
+var mockProperty = require('mock-property');
+var emptyTestCases = require('./empty-keys-cases').emptyTestCases;
+var hasBigInt = typeof BigInt === 'function';
+
+test('stringify()', function (t) {
+    t.test('stringifies a querystring object', function (st) {
+        st.equal(qs.stringify({ a: 'b' }), 'a=b');
+        st.equal(qs.stringify({ a: 1 }), 'a=1');
+        st.equal(qs.stringify({ a: 1, b: 2 }), 'a=1&b=2');
+        st.equal(qs.stringify({ a: 'A_Z' }), 'a=A_Z');
+        st.equal(qs.stringify({ a: '€' }), 'a=%E2%82%AC');
+        st.equal(qs.stringify({ a: '' }), 'a=%EE%80%80');
+        st.equal(qs.stringify({ a: 'א' }), 'a=%D7%90');
+        st.equal(qs.stringify({ a: '𐐷' }), 'a=%F0%90%90%B7');
+        st.end();
+    });
+
+    t.test('stringifies falsy values', function (st) {
+        st.equal(qs.stringify(undefined), '');
+        st.equal(qs.stringify(null), '');
+        st.equal(qs.stringify(null, { strictNullHandling: true }), '');
+        st.equal(qs.stringify(false), '');
+        st.equal(qs.stringify(0), '');
+        st.end();
+    });
+
+    t.test('stringifies symbols', { skip: !hasSymbols() }, function (st) {
+        st.equal(qs.stringify(Symbol.iterator), '');
+        st.equal(qs.stringify([Symbol.iterator]), '0=Symbol%28Symbol.iterator%29');
+        st.equal(qs.stringify({ a: Symbol.iterator }), 'a=Symbol%28Symbol.iterator%29');
+        st.equal(
+            qs.stringify({ a: [Symbol.iterator] }, { encodeValuesOnly: true, arrayFormat: 'brackets' }),
+            'a[]=Symbol%28Symbol.iterator%29'
+        );
+        st.end();
+    });
+
+    t.test('stringifies bigints', { skip: !hasBigInt }, function (st) {
+        var three = BigInt(3);
+        var encodeWithN = function (value, defaultEncoder, charset) {
+            var result = defaultEncoder(value, defaultEncoder, charset);
+            return typeof value === 'bigint' ? result + 'n' : result;
+        };
+        st.equal(qs.stringify(three), '');
+        st.equal(qs.stringify([three]), '0=3');
+        st.equal(qs.stringify([three], { encoder: encodeWithN }), '0=3n');
+        st.equal(qs.stringify({ a: three }), 'a=3');
+        st.equal(qs.stringify({ a: three }, { encoder: encodeWithN }), 'a=3n');
+        st.equal(
+            qs.stringify({ a: [three] }, { encodeValuesOnly: true, arrayFormat: 'brackets' }),
+            'a[]=3'
+        );
+        st.equal(
+            qs.stringify({ a: [three] }, { encodeValuesOnly: true, encoder: encodeWithN, arrayFormat: 'brackets' }),
+            'a[]=3n'
+        );
+        st.end();
+    });
+
+    t.test('encodes dot in key of object when encodeDotInKeys and allowDots is provided', function (st) {
+        st.equal(
+            qs.stringify(
+                { 'name.obj': { first: 'John', last: 'Doe' } },
+                { allowDots: false, encodeDotInKeys: false }
+            ),
+            'name.obj%5Bfirst%5D=John&name.obj%5Blast%5D=Doe',
+            'with allowDots false and encodeDotInKeys false'
+        );
+        st.equal(
+            qs.stringify(
+                { 'name.obj': { first: 'John', last: 'Doe' } },
+                { allowDots: true, encodeDotInKeys: false }
+            ),
+            'name.obj.first=John&name.obj.last=Doe',
+            'with allowDots true and encodeDotInKeys false'
+        );
+        st.equal(
+            qs.stringify(
+                { 'name.obj': { first: 'John', last: 'Doe' } },
+                { allowDots: false, encodeDotInKeys: true }
+            ),
+            'name%252Eobj%5Bfirst%5D=John&name%252Eobj%5Blast%5D=Doe',
+            'with allowDots false and encodeDotInKeys true'
+        );
+        st.equal(
+            qs.stringify(
+                { 'name.obj': { first: 'John', last: 'Doe' } },
+                { allowDots: true, encodeDotInKeys: true }
+            ),
+            'name%252Eobj.first=John&name%252Eobj.last=Doe',
+            'with allowDots true and encodeDotInKeys true'
+        );
+
+        st.equal(
+            qs.stringify(
+                { 'name.obj.subobject': { 'first.godly.name': 'John', last: 'Doe' } },
+                { allowDots: false, encodeDotInKeys: false }
+            ),
+            'name.obj.subobject%5Bfirst.godly.name%5D=John&name.obj.subobject%5Blast%5D=Doe',
+            'with allowDots false and encodeDotInKeys false'
+        );
+        st.equal(
+            qs.stringify(
+                { 'name.obj.subobject': { 'first.godly.name': 'John', last: 'Doe' } },
+                { allowDots: true, encodeDotInKeys: false }
+            ),
+            'name.obj.subobject.first.godly.name=John&name.obj.subobject.last=Doe',
+            'with allowDots false and encodeDotInKeys false'
+        );
+        st.equal(
+            qs.stringify(
+                { 'name.obj.subobject': { 'first.godly.name': 'John', last: 'Doe' } },
+                { allowDots: false, encodeDotInKeys: true }
+            ),
+            'name%252Eobj%252Esubobject%5Bfirst.godly.name%5D=John&name%252Eobj%252Esubobject%5Blast%5D=Doe',
+            'with allowDots false and encodeDotInKeys true'
+        );
+        st.equal(
+            qs.stringify(
+                { 'name.obj.subobject': { 'first.godly.name': 'John', last: 'Doe' } },
+                { allowDots: true, encodeDotInKeys: true }
+            ),
+            'name%252Eobj%252Esubobject.first%252Egodly%252Ename=John&name%252Eobj%252Esubobject.last=Doe',
+            'with allowDots true and encodeDotInKeys true'
+        );
+
+        st.end();
+    });
+
+    t.test('should encode dot in key of object, and automatically set allowDots to `true` when encodeDotInKeys is true and allowDots in undefined', function (st) {
+        st.equal(
+            qs.stringify(
+                { 'name.obj.subobject': { 'first.godly.name': 'John', last: 'Doe' } },
+                { encodeDotInKeys: true }
+            ),
+            'name%252Eobj%252Esubobject.first%252Egodly%252Ename=John&name%252Eobj%252Esubobject.last=Doe',
+            'with allowDots undefined and encodeDotInKeys true'
+        );
+        st.end();
+    });
+
+    t.test('should encode dot in key of object when encodeDotInKeys and allowDots is provided, and nothing else when encodeValuesOnly is provided', function (st) {
+        st.equal(
+            qs.stringify({ 'name.obj': { first: 'John', last: 'Doe' } }, {
+                encodeDotInKeys: true, allowDots: true, encodeValuesOnly: true
+            }),
+            'name%2Eobj.first=John&name%2Eobj.last=Doe'
+        );
+
+        st.equal(
+            qs.stringify({ 'name.obj.subobject': { 'first.godly.name': 'John', last: 'Doe' } }, { allowDots: true, encodeDotInKeys: true, encodeValuesOnly: true }),
+            'name%2Eobj%2Esubobject.first%2Egodly%2Ename=John&name%2Eobj%2Esubobject.last=Doe'
+        );
+
+        st.end();
+    });
+
+    t.test('throws when `commaRoundTrip` is not a boolean', function (st) {
+        st['throws'](
+            function () { qs.stringify({}, { commaRoundTrip: 'not a boolean' }); },
+            TypeError,
+            'throws when `commaRoundTrip` is not a boolean'
+        );
+
+        st.end();
+    });
+
+    t.test('throws when `encodeDotInKeys` is not a boolean', function (st) {
+        st['throws'](
+            function () { qs.stringify({ a: [], b: 'zz' }, { encodeDotInKeys: 'foobar' }); },
+            TypeError
+        );
+
+        st['throws'](
+            function () { qs.stringify({ a: [], b: 'zz' }, { encodeDotInKeys: 0 }); },
+            TypeError
+        );
+
+        st['throws'](
+            function () { qs.stringify({ a: [], b: 'zz' }, { encodeDotInKeys: NaN }); },
+            TypeError
+        );
+
+        st['throws'](
+            function () { qs.stringify({ a: [], b: 'zz' }, { encodeDotInKeys: null }); },
+            TypeError
+        );
+
+        st.end();
+    });
+
+    t.test('adds query prefix', function (st) {
+        st.equal(qs.stringify({ a: 'b' }, { addQueryPrefix: true }), '?a=b');
+        st.end();
+    });
+
+    t.test('with query prefix, outputs blank string given an empty object', function (st) {
+        st.equal(qs.stringify({}, { addQueryPrefix: true }), '');
+        st.end();
+    });
+
+    t.test('stringifies nested falsy values', function (st) {
+        st.equal(qs.stringify({ a: { b: { c: null } } }), 'a%5Bb%5D%5Bc%5D=');
+        st.equal(qs.stringify({ a: { b: { c: null } } }, { strictNullHandling: true }), 'a%5Bb%5D%5Bc%5D');
+        st.equal(qs.stringify({ a: { b: { c: false } } }), 'a%5Bb%5D%5Bc%5D=false');
+        st.end();
+    });
+
+    t.test('stringifies a nested object', function (st) {
+        st.equal(qs.stringify({ a: { b: 'c' } }), 'a%5Bb%5D=c');
+        st.equal(qs.stringify({ a: { b: { c: { d: 'e' } } } }), 'a%5Bb%5D%5Bc%5D%5Bd%5D=e');
+        st.end();
+    });
+
+    t.test('`allowDots` option: stringifies a nested object with dots notation', function (st) {
+        st.equal(qs.stringify({ a: { b: 'c' } }, { allowDots: true }), 'a.b=c');
+        st.equal(qs.stringify({ a: { b: { c: { d: 'e' } } } }, { allowDots: true }), 'a.b.c.d=e');
+        st.end();
+    });
+
+    t.test('stringifies an array value', function (st) {
+        st.equal(
+            qs.stringify({ a: ['b', 'c', 'd'] }, { arrayFormat: 'indices' }),
+            'a%5B0%5D=b&a%5B1%5D=c&a%5B2%5D=d',
+            'indices => indices'
+        );
+        st.equal(
+            qs.stringify({ a: ['b', 'c', 'd'] }, { arrayFormat: 'brackets' }),
+            'a%5B%5D=b&a%5B%5D=c&a%5B%5D=d',
+            'brackets => brackets'
+        );
+        st.equal(
+            qs.stringify({ a: ['b', 'c', 'd'] }, { arrayFormat: 'comma' }),
+            'a=b%2Cc%2Cd',
+            'comma => comma'
+        );
+        st.equal(
+            qs.stringify({ a: ['b', 'c', 'd'] }, { arrayFormat: 'comma', commaRoundTrip: true }),
+            'a=b%2Cc%2Cd',
+            'comma round trip => comma'
+        );
+        st.equal(
+            qs.stringify({ a: ['b', 'c', 'd'] }),
+            'a%5B0%5D=b&a%5B1%5D=c&a%5B2%5D=d',
+            'default => indices'
+        );
+        st.end();
+    });
+
+    t.test('`skipNulls` option', function (st) {
+        st.equal(
+            qs.stringify({ a: 'b', c: null }, { skipNulls: true }),
+            'a=b',
+            'omits nulls when asked'
+        );
+
+        st.equal(
+            qs.stringify({ a: { b: 'c', d: null } }, { skipNulls: true }),
+            'a%5Bb%5D=c',
+            'omits nested nulls when asked'
+        );
+
+        st.end();
+    });
+
+    t.test('omits array indices when asked', function (st) {
+        st.equal(qs.stringify({ a: ['b', 'c', 'd'] }, { indices: false }), 'a=b&a=c&a=d');
+
+        st.end();
+    });
+
+    t.test('omits object key/value pair when value is empty array', function (st) {
+        st.equal(qs.stringify({ a: [], b: 'zz' }), 'b=zz');
+
+        st.end();
+    });
+
+    t.test('should not omit object key/value pair when value is empty array and when asked', function (st) {
+        st.equal(qs.stringify({ a: [], b: 'zz' }), 'b=zz');
+        st.equal(qs.stringify({ a: [], b: 'zz' }, { allowEmptyArrays: false }), 'b=zz');
+        st.equal(qs.stringify({ a: [], b: 'zz' }, { allowEmptyArrays: true }), 'a[]&b=zz');
+
+        st.end();
+    });
+
+    t.test('should throw when allowEmptyArrays is not of type boolean', function (st) {
+        st['throws'](
+            function () { qs.stringify({ a: [], b: 'zz' }, { allowEmptyArrays: 'foobar' }); },
+            TypeError
+        );
+
+        st['throws'](
+            function () { qs.stringify({ a: [], b: 'zz' }, { allowEmptyArrays: 0 }); },
+            TypeError
+        );
+
+        st['throws'](
+            function () { qs.stringify({ a: [], b: 'zz' }, { allowEmptyArrays: NaN }); },
+            TypeError
+        );
+
+        st['throws'](
+            function () { qs.stringify({ a: [], b: 'zz' }, { allowEmptyArrays: null }); },
+            TypeError
+        );
+
+        st.end();
+    });
+
+    t.test('allowEmptyArrays + strictNullHandling', function (st) {
+        st.equal(
+            qs.stringify(
+                { testEmptyArray: [] },
+                { strictNullHandling: true, allowEmptyArrays: true }
+            ),
+            'testEmptyArray[]'
+        );
+
+        st.end();
+    });
+
+    t.test('stringifies an array value with one item vs multiple items', function (st) {
+        st.test('non-array item', function (s2t) {
+            s2t.equal(qs.stringify({ a: 'c' }, { encodeValuesOnly: true, arrayFormat: 'indices' }), 'a=c');
+            s2t.equal(qs.stringify({ a: 'c' }, { encodeValuesOnly: true, arrayFormat: 'brackets' }), 'a=c');
+            s2t.equal(qs.stringify({ a: 'c' }, { encodeValuesOnly: true, arrayFormat: 'comma' }), 'a=c');
+            s2t.equal(qs.stringify({ a: 'c' }, { encodeValuesOnly: true }), 'a=c');
+
+            s2t.end();
+        });
+
+        st.test('array with a single item', function (s2t) {
+            s2t.equal(qs.stringify({ a: ['c'] }, { encodeValuesOnly: true, arrayFormat: 'indices' }), 'a[0]=c');
+            s2t.equal(qs.stringify({ a: ['c'] }, { encodeValuesOnly: true, arrayFormat: 'brackets' }), 'a[]=c');
+            s2t.equal(qs.stringify({ a: ['c'] }, { encodeValuesOnly: true, arrayFormat: 'comma' }), 'a=c');
+            s2t.equal(qs.stringify({ a: ['c'] }, { encodeValuesOnly: true, arrayFormat: 'comma', commaRoundTrip: true }), 'a[]=c'); // so it parses back as an array
+            s2t.equal(qs.stringify({ a: ['c'] }, { encodeValuesOnly: true }), 'a[0]=c');
+
+            s2t.end();
+        });
+
+        st.test('array with multiple items', function (s2t) {
+            s2t.equal(qs.stringify({ a: ['c', 'd'] }, { encodeValuesOnly: true, arrayFormat: 'indices' }), 'a[0]=c&a[1]=d');
+            s2t.equal(qs.stringify({ a: ['c', 'd'] }, { encodeValuesOnly: true, arrayFormat: 'brackets' }), 'a[]=c&a[]=d');
+            s2t.equal(qs.stringify({ a: ['c', 'd'] }, { encodeValuesOnly: true, arrayFormat: 'comma' }), 'a=c,d');
+            s2t.equal(qs.stringify({ a: ['c', 'd'] }, { encodeValuesOnly: true, arrayFormat: 'comma', commaRoundTrip: true }), 'a=c,d');
+            s2t.equal(qs.stringify({ a: ['c', 'd'] }, { encodeValuesOnly: true }), 'a[0]=c&a[1]=d');
+
+            s2t.end();
+        });
+
+        st.test('array with multiple items with a comma inside', function (s2t) {
+            s2t.equal(qs.stringify({ a: ['c,d', 'e'] }, { encodeValuesOnly: true, arrayFormat: 'comma' }), 'a=c%2Cd,e');
+            s2t.equal(qs.stringify({ a: ['c,d', 'e'] }, { arrayFormat: 'comma' }), 'a=c%2Cd%2Ce');
+
+            s2t.equal(qs.stringify({ a: ['c,d', 'e'] }, { encodeValuesOnly: true, arrayFormat: 'comma', commaRoundTrip: true }), 'a=c%2Cd,e');
+            s2t.equal(qs.stringify({ a: ['c,d', 'e'] }, { arrayFormat: 'comma', commaRoundTrip: true }), 'a=c%2Cd%2Ce');
+
+            s2t.end();
+        });
+
+        st.end();
+    });
+
+    t.test('stringifies a nested array value', function (st) {
+        st.equal(qs.stringify({ a: { b: ['c', 'd'] } }, { encodeValuesOnly: true, arrayFormat: 'indices' }), 'a[b][0]=c&a[b][1]=d');
+        st.equal(qs.stringify({ a: { b: ['c', 'd'] } }, { encodeValuesOnly: true, arrayFormat: 'brackets' }), 'a[b][]=c&a[b][]=d');
+        st.equal(qs.stringify({ a: { b: ['c', 'd'] } }, { encodeValuesOnly: true, arrayFormat: 'comma' }), 'a[b]=c,d');
+        st.equal(qs.stringify({ a: { b: ['c', 'd'] } }, { encodeValuesOnly: true }), 'a[b][0]=c&a[b][1]=d');
+        st.end();
+    });
+
+    t.test('stringifies comma and empty array values', function (st) {
+        st.equal(qs.stringify({ a: [',', '', 'c,d%'] }, { encode: false, arrayFormat: 'indices' }), 'a[0]=,&a[1]=&a[2]=c,d%');
+        st.equal(qs.stringify({ a: [',', '', 'c,d%'] }, { encode: false, arrayFormat: 'brackets' }), 'a[]=,&a[]=&a[]=c,d%');
+        st.equal(qs.stringify({ a: [',', '', 'c,d%'] }, { encode: false, arrayFormat: 'comma' }), 'a=,,,c,d%');
+        st.equal(qs.stringify({ a: [',', '', 'c,d%'] }, { encode: false, arrayFormat: 'repeat' }), 'a=,&a=&a=c,d%');
+
+        st.equal(qs.stringify({ a: [',', '', 'c,d%'] }, { encode: true, encodeValuesOnly: true, arrayFormat: 'indices' }), 'a[0]=%2C&a[1]=&a[2]=c%2Cd%25');
+        st.equal(qs.stringify({ a: [',', '', 'c,d%'] }, { encode: true, encodeValuesOnly: true, arrayFormat: 'brackets' }), 'a[]=%2C&a[]=&a[]=c%2Cd%25');
+        st.equal(qs.stringify({ a: [',', '', 'c,d%'] }, { encode: true, encodeValuesOnly: true, arrayFormat: 'comma' }), 'a=%2C,,c%2Cd%25');
+        st.equal(qs.stringify({ a: [',', '', 'c,d%'] }, { encode: true, encodeValuesOnly: true, arrayFormat: 'repeat' }), 'a=%2C&a=&a=c%2Cd%25');
+
+        st.equal(qs.stringify({ a: [',', '', 'c,d%'] }, { encode: true, encodeValuesOnly: false, arrayFormat: 'indices' }), 'a%5B0%5D=%2C&a%5B1%5D=&a%5B2%5D=c%2Cd%25');
+        st.equal(qs.stringify({ a: [',', '', 'c,d%'] }, { encode: true, encodeValuesOnly: false, arrayFormat: 'brackets' }), 'a%5B%5D=%2C&a%5B%5D=&a%5B%5D=c%2Cd%25');
+        st.equal(qs.stringify({ a: [',', '', 'c,d%'] }, { encode: true, encodeValuesOnly: false, arrayFormat: 'comma' }), 'a=%2C%2C%2Cc%2Cd%25');
+        st.equal(qs.stringify({ a: [',', '', 'c,d%'] }, { encode: true, encodeValuesOnly: false, arrayFormat: 'repeat' }), 'a=%2C&a=&a=c%2Cd%25');
+
+        st.end();
+    });
+
+    t.test('stringifies comma and empty non-array values', function (st) {
+        st.equal(qs.stringify({ a: ',', b: '', c: 'c,d%' }, { encode: false, arrayFormat: 'indices' }), 'a=,&b=&c=c,d%');
+        st.equal(qs.stringify({ a: ',', b: '', c: 'c,d%' }, { encode: false, arrayFormat: 'brackets' }), 'a=,&b=&c=c,d%');
+        st.equal(qs.stringify({ a: ',', b: '', c: 'c,d%' }, { encode: false, arrayFormat: 'comma' }), 'a=,&b=&c=c,d%');
+        st.equal(qs.stringify({ a: ',', b: '', c: 'c,d%' }, { encode: false, arrayFormat: 'repeat' }), 'a=,&b=&c=c,d%');
+
+        st.equal(qs.stringify({ a: ',', b: '', c: 'c,d%' }, { encode: true, encodeValuesOnly: true, arrayFormat: 'indices' }), 'a=%2C&b=&c=c%2Cd%25');
+        st.equal(qs.stringify({ a: ',', b: '', c: 'c,d%' }, { encode: true, encodeValuesOnly: true, arrayFormat: 'brackets' }), 'a=%2C&b=&c=c%2Cd%25');
+        st.equal(qs.stringify({ a: ',', b: '', c: 'c,d%' }, { encode: true, encodeValuesOnly: true, arrayFormat: 'comma' }), 'a=%2C&b=&c=c%2Cd%25');
+        st.equal(qs.stringify({ a: ',', b: '', c: 'c,d%' }, { encode: true, encodeValuesOnly: true, arrayFormat: 'repeat' }), 'a=%2C&b=&c=c%2Cd%25');
+
+        st.equal(qs.stringify({ a: ',', b: '', c: 'c,d%' }, { encode: true, encodeValuesOnly: false, arrayFormat: 'indices' }), 'a=%2C&b=&c=c%2Cd%25');
+        st.equal(qs.stringify({ a: ',', b: '', c: 'c,d%' }, { encode: true, encodeValuesOnly: false, arrayFormat: 'brackets' }), 'a=%2C&b=&c=c%2Cd%25');
+        st.equal(qs.stringify({ a: ',', b: '', c: 'c,d%' }, { encode: true, encodeValuesOnly: false, arrayFormat: 'comma' }), 'a=%2C&b=&c=c%2Cd%25');
+        st.equal(qs.stringify({ a: ',', b: '', c: 'c,d%' }, { encode: true, encodeValuesOnly: false, arrayFormat: 'repeat' }), 'a=%2C&b=&c=c%2Cd%25');
+
+        st.end();
+    });
+
+    t.test('stringifies a nested array value with dots notation', function (st) {
+        st.equal(
+            qs.stringify(
+                { a: { b: ['c', 'd'] } },
+                { allowDots: true, encodeValuesOnly: true, arrayFormat: 'indices' }
+            ),
+            'a.b[0]=c&a.b[1]=d',
+            'indices: stringifies with dots + indices'
+        );
+        st.equal(
+            qs.stringify(
+                { a: { b: ['c', 'd'] } },
+                { allowDots: true, encodeValuesOnly: true, arrayFormat: 'brackets' }
+            ),
+            'a.b[]=c&a.b[]=d',
+            'brackets: stringifies with dots + brackets'
+        );
+        st.equal(
+            qs.stringify(
+                { a: { b: ['c', 'd'] } },
+                { allowDots: true, encodeValuesOnly: true, arrayFormat: 'comma' }
+            ),
+            'a.b=c,d',
+            'comma: stringifies with dots + comma'
+        );
+        st.equal(
+            qs.stringify(
+                { a: { b: ['c', 'd'] } },
+                { allowDots: true, encodeValuesOnly: true }
+            ),
+            'a.b[0]=c&a.b[1]=d',
+            'default: stringifies with dots + indices'
+        );
+        st.end();
+    });
+
+    t.test('stringifies an object inside an array', function (st) {
+        st.equal(
+            qs.stringify({ a: [{ b: 'c' }] }, { arrayFormat: 'indices', encodeValuesOnly: true }),
+            'a[0][b]=c',
+            'indices => indices'
+        );
+        st.equal(
+            qs.stringify({ a: [{ b: 'c' }] }, { arrayFormat: 'repeat', encodeValuesOnly: true }),
+            'a[b]=c',
+            'repeat => repeat'
+        );
+        st.equal(
+            qs.stringify({ a: [{ b: 'c' }] }, { arrayFormat: 'brackets', encodeValuesOnly: true }),
+            'a[][b]=c',
+            'brackets => brackets'
+        );
+        st.equal(
+            qs.stringify({ a: [{ b: 'c' }] }, { encodeValuesOnly: true }),
+            'a[0][b]=c',
+            'default => indices'
+        );
+
+        st.equal(
+            qs.stringify({ a: [{ b: { c: [1] } }] }, { arrayFormat: 'indices', encodeValuesOnly: true }),
+            'a[0][b][c][0]=1',
+            'indices => indices'
+        );
+        st.equal(
+            qs.stringify({ a: [{ b: { c: [1] } }] }, { arrayFormat: 'repeat', encodeValuesOnly: true }),
+            'a[b][c]=1',
+            'repeat => repeat'
+        );
+        st.equal(
+            qs.stringify({ a: [{ b: { c: [1] } }] }, { arrayFormat: 'brackets', encodeValuesOnly: true }),
+            'a[][b][c][]=1',
+            'brackets => brackets'
+        );
+        st.equal(
+            qs.stringify({ a: [{ b: { c: [1] } }] }, { encodeValuesOnly: true }),
+            'a[0][b][c][0]=1',
+            'default => indices'
+        );
+
+        st.end();
+    });
+
+    t.test('stringifies an array with mixed objects and primitives', function (st) {
+        st.equal(
+            qs.stringify({ a: [{ b: 1 }, 2, 3] }, { encodeValuesOnly: true, arrayFormat: 'indices' }),
+            'a[0][b]=1&a[1]=2&a[2]=3',
+            'indices => indices'
+        );
+        st.equal(
+            qs.stringify({ a: [{ b: 1 }, 2, 3] }, { encodeValuesOnly: true, arrayFormat: 'brackets' }),
+            'a[][b]=1&a[]=2&a[]=3',
+            'brackets => brackets'
+        );
+        st.equal(
+            qs.stringify({ a: [{ b: 1 }, 2, 3] }, { encodeValuesOnly: true, arrayFormat: 'comma' }),
+            '???',
+            'brackets => brackets',
+            { skip: 'TODO: figure out what this should do' }
+        );
+        st.equal(
+            qs.stringify({ a: [{ b: 1 }, 2, 3] }, { encodeValuesOnly: true }),
+            'a[0][b]=1&a[1]=2&a[2]=3',
+            'default => indices'
+        );
+
+        st.end();
+    });
+
+    t.test('stringifies an object inside an array with dots notation', function (st) {
+        st.equal(
+            qs.stringify(
+                { a: [{ b: 'c' }] },
+                { allowDots: true, encode: false, arrayFormat: 'indices' }
+            ),
+            'a[0].b=c',
+            'indices => indices'
+        );
+        st.equal(
+            qs.stringify(
+                { a: [{ b: 'c' }] },
+                { allowDots: true, encode: false, arrayFormat: 'brackets' }
+            ),
+            'a[].b=c',
+            'brackets => brackets'
+        );
+        st.equal(
+            qs.stringify(
+                { a: [{ b: 'c' }] },
+                { allowDots: true, encode: false }
+            ),
+            'a[0].b=c',
+            'default => indices'
+        );
+
+        st.equal(
+            qs.stringify(
+                { a: [{ b: { c: [1] } }] },
+                { allowDots: true, encode: false, arrayFormat: 'indices' }
+            ),
+            'a[0].b.c[0]=1',
+            'indices => indices'
+        );
+        st.equal(
+            qs.stringify(
+                { a: [{ b: { c: [1] } }] },
+                { allowDots: true, encode: false, arrayFormat: 'brackets' }
+            ),
+            'a[].b.c[]=1',
+            'brackets => brackets'
+        );
+        st.equal(
+            qs.stringify(
+                { a: [{ b: { c: [1] } }] },
+                { allowDots: true, encode: false }
+            ),
+            'a[0].b.c[0]=1',
+            'default => indices'
+        );
+
+        st.end();
+    });
+
+    t.test('does not omit object keys when indices = false', function (st) {
+        st.equal(qs.stringify({ a: [{ b: 'c' }] }, { indices: false }), 'a%5Bb%5D=c');
+        st.end();
+    });
+
+    t.test('uses indices notation for arrays when indices=true', function (st) {
+        st.equal(qs.stringify({ a: ['b', 'c'] }, { indices: true }), 'a%5B0%5D=b&a%5B1%5D=c');
+        st.end();
+    });
+
+    t.test('uses indices notation for arrays when no arrayFormat is specified', function (st) {
+        st.equal(qs.stringify({ a: ['b', 'c'] }), 'a%5B0%5D=b&a%5B1%5D=c');
+        st.end();
+    });
+
+    t.test('uses indices notation for arrays when arrayFormat=indices', function (st) {
+        st.equal(qs.stringify({ a: ['b', 'c'] }, { arrayFormat: 'indices' }), 'a%5B0%5D=b&a%5B1%5D=c');
+        st.end();
+    });
+
+    t.test('uses repeat notation for arrays when arrayFormat=repeat', function (st) {
+        st.equal(qs.stringify({ a: ['b', 'c'] }, { arrayFormat: 'repeat' }), 'a=b&a=c');
+        st.end();
+    });
+
+    t.test('uses brackets notation for arrays when arrayFormat=brackets', function (st) {
+        st.equal(qs.stringify({ a: ['b', 'c'] }, { arrayFormat: 'brackets' }), 'a%5B%5D=b&a%5B%5D=c');
+        st.end();
+    });
+
+    t.test('stringifies a complicated object', function (st) {
+        st.equal(qs.stringify({ a: { b: 'c', d: 'e' } }), 'a%5Bb%5D=c&a%5Bd%5D=e');
+        st.end();
+    });
+
+    t.test('stringifies an empty value', function (st) {
+        st.equal(qs.stringify({ a: '' }), 'a=');
+        st.equal(qs.stringify({ a: null }, { strictNullHandling: true }), 'a');
+
+        st.equal(qs.stringify({ a: '', b: '' }), 'a=&b=');
+        st.equal(qs.stringify({ a: null, b: '' }, { strictNullHandling: true }), 'a&b=');
+
+        st.equal(qs.stringify({ a: { b: '' } }), 'a%5Bb%5D=');
+        st.equal(qs.stringify({ a: { b: null } }, { strictNullHandling: true }), 'a%5Bb%5D');
+        st.equal(qs.stringify({ a: { b: null } }, { strictNullHandling: false }), 'a%5Bb%5D=');
+
+        st.end();
+    });
+
+    t.test('stringifies an empty array in different arrayFormat', function (st) {
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false }), 'b[0]=&c=c');
+        // arrayFormat default
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'indices' }), 'b[0]=&c=c');
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'brackets' }), 'b[]=&c=c');
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'repeat' }), 'b=&c=c');
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'comma' }), 'b=&c=c');
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'comma', commaRoundTrip: true }), 'b[]=&c=c');
+        // with strictNullHandling
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'indices', strictNullHandling: true }), 'b[0]&c=c');
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'brackets', strictNullHandling: true }), 'b[]&c=c');
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'repeat', strictNullHandling: true }), 'b&c=c');
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'comma', strictNullHandling: true }), 'b&c=c');
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'comma', strictNullHandling: true, commaRoundTrip: true }), 'b[]&c=c');
+        // with skipNulls
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'indices', skipNulls: true }), 'c=c');
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'brackets', skipNulls: true }), 'c=c');
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'repeat', skipNulls: true }), 'c=c');
+        st.equal(qs.stringify({ a: [], b: [null], c: 'c' }, { encode: false, arrayFormat: 'comma', skipNulls: true }), 'c=c');
+
+        st.end();
+    });
+
+    t.test('stringifies a null object', { skip: !Object.create }, function (st) {
+        var obj = Object.create(null);
+        obj.a = 'b';
+        st.equal(qs.stringify(obj), 'a=b');
+        st.end();
+    });
+
+    t.test('returns an empty string for invalid input', function (st) {
+        st.equal(qs.stringify(undefined), '');
+        st.equal(qs.stringify(false), '');
+        st.equal(qs.stringify(null), '');
+        st.equal(qs.stringify(''), '');
+        st.end();
+    });
+
+    t.test('stringifies an object with a null object as a child', { skip: !Object.create }, function (st) {
+        var obj = { a: Object.create(null) };
+
+        obj.a.b = 'c';
+        st.equal(qs.stringify(obj), 'a%5Bb%5D=c');
+        st.end();
+    });
+
+    t.test('drops keys with a value of undefined', function (st) {
+        st.equal(qs.stringify({ a: undefined }), '');
+
+        st.equal(qs.stringify({ a: { b: undefined, c: null } }, { strictNullHandling: true }), 'a%5Bc%5D');
+        st.equal(qs.stringify({ a: { b: undefined, c: null } }, { strictNullHandling: false }), 'a%5Bc%5D=');
+        st.equal(qs.stringify({ a: { b: undefined, c: '' } }), 'a%5Bc%5D=');
+        st.end();
+    });
+
+    t.test('url encodes values', function (st) {
+        st.equal(qs.stringify({ a: 'b c' }), 'a=b%20c');
+        st.end();
+    });
+
+    t.test('stringifies a date', function (st) {
+        var now = new Date();
+        var str = 'a=' + encodeURIComponent(now.toISOString());
+        st.equal(qs.stringify({ a: now }), str);
+        st.end();
+    });
+
+    t.test('stringifies the weird object from qs', function (st) {
+        st.equal(qs.stringify({ 'my weird field': '~q1!2"\'w$5&7/z8)?' }), 'my%20weird%20field=~q1%212%22%27w%245%267%2Fz8%29%3F');
+        st.end();
+    });
+
+    t.test('skips properties that are part of the object prototype', function (st) {
+        st.intercept(Object.prototype, 'crash', { value: 'test' });
+
+        st.equal(qs.stringify({ a: 'b' }), 'a=b');
+        st.equal(qs.stringify({ a: { b: 'c' } }), 'a%5Bb%5D=c');
+
+        st.end();
+    });
+
+    t.test('stringifies boolean values', function (st) {
+        st.equal(qs.stringify({ a: true }), 'a=true');
+        st.equal(qs.stringify({ a: { b: true } }), 'a%5Bb%5D=true');
+        st.equal(qs.stringify({ b: false }), 'b=false');
+        st.equal(qs.stringify({ b: { c: false } }), 'b%5Bc%5D=false');
+        st.end();
+    });
+
+    t.test('stringifies buffer values', function (st) {
+        st.equal(qs.stringify({ a: SaferBuffer.from('test') }), 'a=test');
+        st.equal(qs.stringify({ a: { b: SaferBuffer.from('test') } }), 'a%5Bb%5D=test');
+        st.end();
+    });
+
+    t.test('stringifies an object using an alternative delimiter', function (st) {
+        st.equal(qs.stringify({ a: 'b', c: 'd' }, { delimiter: ';' }), 'a=b;c=d');
+        st.end();
+    });
+
+    t.test('does not blow up when Buffer global is missing', function (st) {
+        var restore = mockProperty(global, 'Buffer', { 'delete': true });
+
+        var result = qs.stringify({ a: 'b', c: 'd' });
+
+        restore();
+
+        st.equal(result, 'a=b&c=d');
+        st.end();
+    });
+
+    t.test('does not crash when parsing circular references', function (st) {
+        var a = {};
+        a.b = a;
+
+        st['throws'](
+            function () { qs.stringify({ 'foo[bar]': 'baz', 'foo[baz]': a }); },
+            /RangeError: Cyclic object value/,
+            'cyclic values throw'
+        );
+
+        var circular = {
+            a: 'value'
+        };
+        circular.a = circular;
+        st['throws'](
+            function () { qs.stringify(circular); },
+            /RangeError: Cyclic object value/,
+            'cyclic values throw'
+        );
+
+        var arr = ['a'];
+        st.doesNotThrow(
+            function () { qs.stringify({ x: arr, y: arr }); },
+            'non-cyclic values do not throw'
+        );
+
+        st.end();
+    });
+
+    t.test('non-circular duplicated references can still work', function (st) {
+        var hourOfDay = {
+            'function': 'hour_of_day'
+        };
+
+        var p1 = {
+            'function': 'gte',
+            arguments: [hourOfDay, 0]
+        };
+        var p2 = {
+            'function': 'lte',
+            arguments: [hourOfDay, 23]
+        };
+
+        st.equal(
+            qs.stringify({ filters: { $and: [p1, p2] } }, { encodeValuesOnly: true, arrayFormat: 'indices' }),
+            'filters[$and][0][function]=gte&filters[$and][0][arguments][0][function]=hour_of_day&filters[$and][0][arguments][1]=0&filters[$and][1][function]=lte&filters[$and][1][arguments][0][function]=hour_of_day&filters[$and][1][arguments][1]=23'
+        );
+        st.equal(
+            qs.stringify({ filters: { $and: [p1, p2] } }, { encodeValuesOnly: true, arrayFormat: 'brackets' }),
+            'filters[$and][][function]=gte&filters[$and][][arguments][][function]=hour_of_day&filters[$and][][arguments][]=0&filters[$and][][function]=lte&filters[$and][][arguments][][function]=hour_of_day&filters[$and][][arguments][]=23'
+        );
+        st.equal(
+            qs.stringify({ filters: { $and: [p1, p2] } }, { encodeValuesOnly: true, arrayFormat: 'repeat' }),
+            'filters[$and][function]=gte&filters[$and][arguments][function]=hour_of_day&filters[$and][arguments]=0&filters[$and][function]=lte&filters[$and][arguments][function]=hour_of_day&filters[$and][arguments]=23'
+        );
+
+        st.end();
+    });
+
+    t.test('selects properties when filter=array', function (st) {
+        st.equal(qs.stringify({ a: 'b' }, { filter: ['a'] }), 'a=b');
+        st.equal(qs.stringify({ a: 1 }, { filter: [] }), '');
+
+        st.equal(
+            qs.stringify(
+                { a: { b: [1, 2, 3, 4], c: 'd' }, c: 'f' },
+                { filter: ['a', 'b', 0, 2], arrayFormat: 'indices' }
+            ),
+            'a%5Bb%5D%5B0%5D=1&a%5Bb%5D%5B2%5D=3',
+            'indices => indices'
+        );
+        st.equal(
+            qs.stringify(
+                { a: { b: [1, 2, 3, 4], c: 'd' }, c: 'f' },
+                { filter: ['a', 'b', 0, 2], arrayFormat: 'brackets' }
+            ),
+            'a%5Bb%5D%5B%5D=1&a%5Bb%5D%5B%5D=3',
+            'brackets => brackets'
+        );
+        st.equal(
+            qs.stringify(
+                { a: { b: [1, 2, 3, 4], c: 'd' }, c: 'f' },
+                { filter: ['a', 'b', 0, 2] }
+            ),
+            'a%5Bb%5D%5B0%5D=1&a%5Bb%5D%5B2%5D=3',
+            'default => indices'
+        );
+
+        st.end();
+    });
+
+    t.test('supports custom representations when filter=function', function (st) {
+        var calls = 0;
+        var obj = { a: 'b', c: 'd', e: { f: new Date(1257894000000) } };
+        var filterFunc = function (prefix, value) {
+            calls += 1;
+            if (calls === 1) {
+                st.equal(prefix, '', 'prefix is empty');
+                st.equal(value, obj);
+            } else if (prefix === 'c') {
+                return void 0;
+            } else if (value instanceof Date) {
+                st.equal(prefix, 'e[f]');
+                return value.getTime();
+            }
+            return value;
+        };
+
+        st.equal(qs.stringify(obj, { filter: filterFunc }), 'a=b&e%5Bf%5D=1257894000000');
+        st.equal(calls, 5);
+        st.end();
+    });
+
+    t.test('can disable uri encoding', function (st) {
+        st.equal(qs.stringify({ a: 'b' }, { encode: false }), 'a=b');
+        st.equal(qs.stringify({ a: { b: 'c' } }, { encode: false }), 'a[b]=c');
+        st.equal(qs.stringify({ a: 'b', c: null }, { strictNullHandling: true, encode: false }), 'a=b&c');
+        st.end();
+    });
+
+    t.test('can sort the keys', function (st) {
+        var sort = function (a, b) {
+            return a.localeCompare(b);
+        };
+        st.equal(qs.stringify({ a: 'c', z: 'y', b: 'f' }, { sort: sort }), 'a=c&b=f&z=y');
+        st.equal(qs.stringify({ a: 'c', z: { j: 'a', i: 'b' }, b: 'f' }, { sort: sort }), 'a=c&b=f&z%5Bi%5D=b&z%5Bj%5D=a');
+        st.end();
+    });
+
+    t.test('can sort the keys at depth 3 or more too', function (st) {
+        var sort = function (a, b) {
+            return a.localeCompare(b);
+        };
+        st.equal(
+            qs.stringify(
+                { a: 'a', z: { zj: { zjb: 'zjb', zja: 'zja' }, zi: { zib: 'zib', zia: 'zia' } }, b: 'b' },
+                { sort: sort, encode: false }
+            ),
+            'a=a&b=b&z[zi][zia]=zia&z[zi][zib]=zib&z[zj][zja]=zja&z[zj][zjb]=zjb'
+        );
+        st.equal(
+            qs.stringify(
+                { a: 'a', z: { zj: { zjb: 'zjb', zja: 'zja' }, zi: { zib: 'zib', zia: 'zia' } }, b: 'b' },
+                { sort: null, encode: false }
+            ),
+            'a=a&z[zj][zjb]=zjb&z[zj][zja]=zja&z[zi][zib]=zib&z[zi][zia]=zia&b=b'
+        );
+        st.end();
+    });
+
+    t.test('can stringify with custom encoding', function (st) {
+        st.equal(qs.stringify({ 県: '大阪府', '': '' }, {
+            encoder: function (str) {
+                if (str.length === 0) {
+                    return '';
+                }
+                var buf = iconv.encode(str, 'shiftjis');
+                var result = [];
+                for (var i = 0; i < buf.length; ++i) {
+                    result.push(buf.readUInt8(i).toString(16));
+                }
+                return '%' + result.join('%');
+            }
+        }), '%8c%a7=%91%e5%8d%e3%95%7b&=');
+        st.end();
+    });
+
+    t.test('receives the default encoder as a second argument', function (st) {
+        st.plan(8);
+
+        qs.stringify({ a: 1, b: new Date(), c: true, d: [1] }, {
+            encoder: function (str) {
+                st.match(typeof str, /^(?:string|number|boolean)$/);
+                return '';
+            }
+        });
+
+        st.end();
+    });
+
+    t.test('receives the default encoder as a second argument', function (st) {
+        st.plan(2);
+
+        qs.stringify({ a: 1 }, {
+            encoder: function (str, defaultEncoder) {
+                st.equal(defaultEncoder, utils.encode);
+            }
+        });
+
+        st.end();
+    });
+
+    t.test('throws error with wrong encoder', function (st) {
+        st['throws'](function () {
+            qs.stringify({}, { encoder: 'string' });
+        }, new TypeError('Encoder has to be a function.'));
+        st.end();
+    });
+
+    t.test('can use custom encoder for a buffer object', { skip: typeof Buffer === 'undefined' }, function (st) {
+        st.equal(qs.stringify({ a: SaferBuffer.from([1]) }, {
+            encoder: function (buffer) {
+                if (typeof buffer === 'string') {
+                    return buffer;
+                }
+                return String.fromCharCode(buffer.readUInt8(0) + 97);
+            }
+        }), 'a=b');
+
+        st.equal(qs.stringify({ a: SaferBuffer.from('a b') }, {
+            encoder: function (buffer) {
+                return buffer;
+            }
+        }), 'a=a b');
+        st.end();
+    });
+
+    t.test('serializeDate option', function (st) {
+        var date = new Date();
+        st.equal(
+            qs.stringify({ a: date }),
+            'a=' + date.toISOString().replace(/:/g, '%3A'),
+            'default is toISOString'
+        );
+
+        var mutatedDate = new Date();
+        mutatedDate.toISOString = function () {
+            throw new SyntaxError();
+        };
+        st['throws'](function () {
+            mutatedDate.toISOString();
+        }, SyntaxError);
+        st.equal(
+            qs.stringify({ a: mutatedDate }),
+            'a=' + Date.prototype.toISOString.call(mutatedDate).replace(/:/g, '%3A'),
+            'toISOString works even when method is not locally present'
+        );
+
+        var specificDate = new Date(6);
+        st.equal(
+            qs.stringify(
+                { a: specificDate },
+                { serializeDate: function (d) { return d.getTime() * 7; } }
+            ),
+            'a=42',
+            'custom serializeDate function called'
+        );
+
+        st.equal(
+            qs.stringify(
+                { a: [date] },
+                {
+                    serializeDate: function (d) { return d.getTime(); },
+                    arrayFormat: 'comma'
+                }
+            ),
+            'a=' + date.getTime(),
+            'works with arrayFormat comma'
+        );
+        st.equal(
+            qs.stringify(
+                { a: [date] },
+                {
+                    serializeDate: function (d) { return d.getTime(); },
+                    arrayFormat: 'comma',
+                    commaRoundTrip: true
+                }
+            ),
+            'a%5B%5D=' + date.getTime(),
+            'works with arrayFormat comma'
+        );
+
+        st.end();
+    });
+
+    t.test('RFC 1738 serialization', function (st) {
+        st.equal(qs.stringify({ a: 'b c' }, { format: qs.formats.RFC1738 }), 'a=b+c');
+        st.equal(qs.stringify({ 'a b': 'c d' }, { format: qs.formats.RFC1738 }), 'a+b=c+d');
+        st.equal(qs.stringify({ 'a b': SaferBuffer.from('a b') }, { format: qs.formats.RFC1738 }), 'a+b=a+b');
+
+        st.equal(qs.stringify({ 'foo(ref)': 'bar' }, { format: qs.formats.RFC1738 }), 'foo(ref)=bar');
+
+        st.end();
+    });
+
+    t.test('RFC 3986 spaces serialization', function (st) {
+        st.equal(qs.stringify({ a: 'b c' }, { format: qs.formats.RFC3986 }), 'a=b%20c');
+        st.equal(qs.stringify({ 'a b': 'c d' }, { format: qs.formats.RFC3986 }), 'a%20b=c%20d');
+        st.equal(qs.stringify({ 'a b': SaferBuffer.from('a b') }, { format: qs.formats.RFC3986 }), 'a%20b=a%20b');
+
+        st.end();
+    });
+
+    t.test('Backward compatibility to RFC 3986', function (st) {
+        st.equal(qs.stringify({ a: 'b c' }), 'a=b%20c');
+        st.equal(qs.stringify({ 'a b': SaferBuffer.from('a b') }), 'a%20b=a%20b');
+
+        st.end();
+    });
+
+    t.test('Edge cases and unknown formats', function (st) {
+        ['UFO1234', false, 1234, null, {}, []].forEach(function (format) {
+            st['throws'](
+                function () {
+                    qs.stringify({ a: 'b c' }, { format: format });
+                },
+                new TypeError('Unknown format option provided.')
+            );
+        });
+        st.end();
+    });
+
+    t.test('encodeValuesOnly', function (st) {
+        st.equal(
+            qs.stringify(
+                { a: 'b', c: ['d', 'e=f'], f: [['g'], ['h']] },
+                { encodeValuesOnly: true, arrayFormat: 'indices' }
+            ),
+            'a=b&c[0]=d&c[1]=e%3Df&f[0][0]=g&f[1][0]=h',
+            'encodeValuesOnly + indices'
+        );
+        st.equal(
+            qs.stringify(
+                { a: 'b', c: ['d', 'e=f'], f: [['g'], ['h']] },
+                { encodeValuesOnly: true, arrayFormat: 'brackets' }
+            ),
+            'a=b&c[]=d&c[]=e%3Df&f[][]=g&f[][]=h',
+            'encodeValuesOnly + brackets'
+        );
+        st.equal(
+            qs.stringify(
+                { a: 'b', c: ['d', 'e=f'], f: [['g'], ['h']] },
+                { encodeValuesOnly: true, arrayFormat: 'repeat' }
+            ),
+            'a=b&c=d&c=e%3Df&f=g&f=h',
+            'encodeValuesOnly + repeat'
+        );
+
+        st.equal(
+            qs.stringify(
+                { a: 'b', c: ['d', 'e'], f: [['g'], ['h']] },
+                { arrayFormat: 'indices' }
+            ),
+            'a=b&c%5B0%5D=d&c%5B1%5D=e&f%5B0%5D%5B0%5D=g&f%5B1%5D%5B0%5D=h',
+            'no encodeValuesOnly + indices'
+        );
+        st.equal(
+            qs.stringify(
+                { a: 'b', c: ['d', 'e'], f: [['g'], ['h']] },
+                { arrayFormat: 'brackets' }
+            ),
+            'a=b&c%5B%5D=d&c%5B%5D=e&f%5B%5D%5B%5D=g&f%5B%5D%5B%5D=h',
+            'no encodeValuesOnly + brackets'
+        );
+        st.equal(
+            qs.stringify(
+                { a: 'b', c: ['d', 'e'], f: [['g'], ['h']] },
+                { arrayFormat: 'repeat' }
+            ),
+            'a=b&c=d&c=e&f=g&f=h',
+            'no encodeValuesOnly + repeat'
+        );
+
+        st.end();
+    });
+
+    t.test('encodeValuesOnly - strictNullHandling', function (st) {
+        st.equal(
+            qs.stringify(
+                { a: { b: null } },
+                { encodeValuesOnly: true, strictNullHandling: true }
+            ),
+            'a[b]'
+        );
+        st.end();
+    });
+
+    t.test('throws if an invalid charset is specified', function (st) {
+        st['throws'](function () {
+            qs.stringify({ a: 'b' }, { charset: 'foobar' });
+        }, new TypeError('The charset option must be either utf-8, iso-8859-1, or undefined'));
+        st.end();
+    });
+
+    t.test('respects a charset of iso-8859-1', function (st) {
+        st.equal(qs.stringify({ æ: 'æ' }, { charset: 'iso-8859-1' }), '%E6=%E6');
+        st.end();
+    });
+
+    t.test('encodes unrepresentable chars as numeric entities in iso-8859-1 mode', function (st) {
+        st.equal(qs.stringify({ a: '☺' }, { charset: 'iso-8859-1' }), 'a=%26%239786%3B');
+        st.end();
+    });
+
+    t.test('respects an explicit charset of utf-8 (the default)', function (st) {
+        st.equal(qs.stringify({ a: 'æ' }, { charset: 'utf-8' }), 'a=%C3%A6');
+        st.end();
+    });
+
+    t.test('`charsetSentinel` option', function (st) {
+        st.equal(
+            qs.stringify({ a: 'æ' }, { charsetSentinel: true, charset: 'utf-8' }),
+            'utf8=%E2%9C%93&a=%C3%A6',
+            'adds the right sentinel when instructed to and the charset is utf-8'
+        );
+
+        st.equal(
+            qs.stringify({ a: 'æ' }, { charsetSentinel: true, charset: 'iso-8859-1' }),
+            'utf8=%26%2310003%3B&a=%E6',
+            'adds the right sentinel when instructed to and the charset is iso-8859-1'
+        );
+
+        st.end();
+    });
+
+    t.test('does not mutate the options argument', function (st) {
+        var options = {};
+        qs.stringify({}, options);
+        st.deepEqual(options, {});
+        st.end();
+    });
+
+    t.test('strictNullHandling works with custom filter', function (st) {
+        var filter = function (prefix, value) {
+            return value;
+        };
+
+        var options = { strictNullHandling: true, filter: filter };
+        st.equal(qs.stringify({ key: null }, options), 'key');
+        st.end();
+    });
+
+    t.test('strictNullHandling works with null serializeDate', function (st) {
+        var serializeDate = function () {
+            return null;
+        };
+        var options = { strictNullHandling: true, serializeDate: serializeDate };
+        var date = new Date();
+        st.equal(qs.stringify({ key: date }, options), 'key');
+        st.end();
+    });
+
+    t.test('allows for encoding keys and values differently', function (st) {
+        var encoder = function (str, defaultEncoder, charset, type) {
+            if (type === 'key') {
+                return defaultEncoder(str, defaultEncoder, charset, type).toLowerCase();
+            }
+            if (type === 'value') {
+                return defaultEncoder(str, defaultEncoder, charset, type).toUpperCase();
+            }
+            throw 'this should never happen! type: ' + type;
+        };
+
+        st.deepEqual(qs.stringify({ KeY: 'vAlUe' }, { encoder: encoder }), 'key=VALUE');
+        st.end();
+    });
+
+    t.test('objects inside arrays', function (st) {
+        var obj = { a: { b: { c: 'd', e: 'f' } } };
+        var withArray = { a: { b: [{ c: 'd', e: 'f' }] } };
+
+        st.equal(qs.stringify(obj, { encode: false }), 'a[b][c]=d&a[b][e]=f', 'no array, no arrayFormat');
+        st.equal(qs.stringify(obj, { encode: false, arrayFormat: 'brackets' }), 'a[b][c]=d&a[b][e]=f', 'no array, bracket');
+        st.equal(qs.stringify(obj, { encode: false, arrayFormat: 'indices' }), 'a[b][c]=d&a[b][e]=f', 'no array, indices');
+        st.equal(qs.stringify(obj, { encode: false, arrayFormat: 'repeat' }), 'a[b][c]=d&a[b][e]=f', 'no array, repeat');
+        st.equal(qs.stringify(obj, { encode: false, arrayFormat: 'comma' }), 'a[b][c]=d&a[b][e]=f', 'no array, comma');
+
+        st.equal(qs.stringify(withArray, { encode: false }), 'a[b][0][c]=d&a[b][0][e]=f', 'array, no arrayFormat');
+        st.equal(qs.stringify(withArray, { encode: false, arrayFormat: 'brackets' }), 'a[b][][c]=d&a[b][][e]=f', 'array, bracket');
+        st.equal(qs.stringify(withArray, { encode: false, arrayFormat: 'indices' }), 'a[b][0][c]=d&a[b][0][e]=f', 'array, indices');
+        st.equal(qs.stringify(withArray, { encode: false, arrayFormat: 'repeat' }), 'a[b][c]=d&a[b][e]=f', 'array, repeat');
+        st.equal(
+            qs.stringify(withArray, { encode: false, arrayFormat: 'comma' }),
+            '???',
+            'array, comma',
+            { skip: 'TODO: figure out what this should do' }
+        );
+
+        st.end();
+    });
+
+    t.test('stringifies sparse arrays', function (st) {
+        /* eslint no-sparse-arrays: 0 */
+        st.equal(qs.stringify({ a: [, '2', , , '1'] }, { encodeValuesOnly: true, arrayFormat: 'indices' }), 'a[1]=2&a[4]=1');
+        st.equal(qs.stringify({ a: [, '2', , , '1'] }, { encodeValuesOnly: true, arrayFormat: 'brackets' }), 'a[]=2&a[]=1');
+        st.equal(qs.stringify({ a: [, '2', , , '1'] }, { encodeValuesOnly: true, arrayFormat: 'repeat' }), 'a=2&a=1');
+
+        st.equal(qs.stringify({ a: [, { b: [, , { c: '1' }] }] }, { encodeValuesOnly: true, arrayFormat: 'indices' }), 'a[1][b][2][c]=1');
+        st.equal(qs.stringify({ a: [, { b: [, , { c: '1' }] }] }, { encodeValuesOnly: true, arrayFormat: 'brackets' }), 'a[][b][][c]=1');
+        st.equal(qs.stringify({ a: [, { b: [, , { c: '1' }] }] }, { encodeValuesOnly: true, arrayFormat: 'repeat' }), 'a[b][c]=1');
+
+        st.equal(qs.stringify({ a: [, [, , [, , , { c: '1' }]]] }, { encodeValuesOnly: true, arrayFormat: 'indices' }), 'a[1][2][3][c]=1');
+        st.equal(qs.stringify({ a: [, [, , [, , , { c: '1' }]]] }, { encodeValuesOnly: true, arrayFormat: 'brackets' }), 'a[][][][c]=1');
+        st.equal(qs.stringify({ a: [, [, , [, , , { c: '1' }]]] }, { encodeValuesOnly: true, arrayFormat: 'repeat' }), 'a[c]=1');
+
+        st.equal(qs.stringify({ a: [, [, , [, , , { c: [, '1'] }]]] }, { encodeValuesOnly: true, arrayFormat: 'indices' }), 'a[1][2][3][c][1]=1');
+        st.equal(qs.stringify({ a: [, [, , [, , , { c: [, '1'] }]]] }, { encodeValuesOnly: true, arrayFormat: 'brackets' }), 'a[][][][c][]=1');
+        st.equal(qs.stringify({ a: [, [, , [, , , { c: [, '1'] }]]] }, { encodeValuesOnly: true, arrayFormat: 'repeat' }), 'a[c]=1');
+
+        st.end();
+    });
+
+    t.test('encodes a very long string', function (st) {
+        var chars = [];
+        var expected = [];
+        for (var i = 0; i < 5e3; i++) {
+            chars.push(' ' + i);
+
+            expected.push('%20' + i);
+        }
+
+        var obj = {
+            foo: chars.join('')
+        };
+
+        st.equal(
+            qs.stringify(obj, { arrayFormat: 'bracket', charset: 'utf-8' }),
+            'foo=' + expected.join('')
+        );
+
+        st.end();
+    });
+
+    t.end();
+});
+
+test('stringifies empty keys', function (t) {
+    emptyTestCases.forEach(function (testCase) {
+        t.test('stringifies an object with empty string key with ' + testCase.input, function (st) {
+            st.deepEqual(
+                qs.stringify(testCase.withEmptyKeys, { encode: false, arrayFormat: 'indices' }),
+                testCase.stringifyOutput.indices,
+                'test case: ' + testCase.input + ', indices'
+            );
+            st.deepEqual(
+                qs.stringify(testCase.withEmptyKeys, { encode: false, arrayFormat: 'brackets' }),
+                testCase.stringifyOutput.brackets,
+                'test case: ' + testCase.input + ', brackets'
+            );
+            st.deepEqual(
+                qs.stringify(testCase.withEmptyKeys, { encode: false, arrayFormat: 'repeat' }),
+                testCase.stringifyOutput.repeat,
+                'test case: ' + testCase.input + ', repeat'
+            );
+
+            st.end();
+        });
+    });
+
+    t.test('edge case with object/arrays', function (st) {
+        st.deepEqual(qs.stringify({ '': { '': [2, 3] } }, { encode: false }), '[][0]=2&[][1]=3');
+        st.deepEqual(qs.stringify({ '': { '': [2, 3], a: 2 } }, { encode: false }), '[][0]=2&[][1]=3&[a]=2');
+        st.deepEqual(qs.stringify({ '': { '': [2, 3] } }, { encode: false, arrayFormat: 'indices' }), '[][0]=2&[][1]=3');
+        st.deepEqual(qs.stringify({ '': { '': [2, 3], a: 2 } }, { encode: false, arrayFormat: 'indices' }), '[][0]=2&[][1]=3&[a]=2');
+
+        st.end();
+    });
+});
diff --git a/backend/node_modules/qs/test/utils.js b/backend/node_modules/qs/test/utils.js
new file mode 100644
index 0000000..aa84dfd
--- /dev/null
+++ b/backend/node_modules/qs/test/utils.js
@@ -0,0 +1,136 @@
+'use strict';
+
+var test = require('tape');
+var inspect = require('object-inspect');
+var SaferBuffer = require('safer-buffer').Buffer;
+var forEach = require('for-each');
+var utils = require('../lib/utils');
+
+test('merge()', function (t) {
+    t.deepEqual(utils.merge(null, true), [null, true], 'merges true into null');
+
+    t.deepEqual(utils.merge(null, [42]), [null, 42], 'merges null into an array');
+
+    t.deepEqual(utils.merge({ a: 'b' }, { a: 'c' }), { a: ['b', 'c'] }, 'merges two objects with the same key');
+
+    var oneMerged = utils.merge({ foo: 'bar' }, { foo: { first: '123' } });
+    t.deepEqual(oneMerged, { foo: ['bar', { first: '123' }] }, 'merges a standalone and an object into an array');
+
+    var twoMerged = utils.merge({ foo: ['bar', { first: '123' }] }, { foo: { second: '456' } });
+    t.deepEqual(twoMerged, { foo: { 0: 'bar', 1: { first: '123' }, second: '456' } }, 'merges a standalone and two objects into an array');
+
+    var sandwiched = utils.merge({ foo: ['bar', { first: '123', second: '456' }] }, { foo: 'baz' });
+    t.deepEqual(sandwiched, { foo: ['bar', { first: '123', second: '456' }, 'baz'] }, 'merges an object sandwiched by two standalones into an array');
+
+    var nestedArrays = utils.merge({ foo: ['baz'] }, { foo: ['bar', 'xyzzy'] });
+    t.deepEqual(nestedArrays, { foo: ['baz', 'bar', 'xyzzy'] });
+
+    var noOptionsNonObjectSource = utils.merge({ foo: 'baz' }, 'bar');
+    t.deepEqual(noOptionsNonObjectSource, { foo: 'baz', bar: true });
+
+    t.test(
+        'avoids invoking array setters unnecessarily',
+        { skip: typeof Object.defineProperty !== 'function' },
+        function (st) {
+            var setCount = 0;
+            var getCount = 0;
+            var observed = [];
+            Object.defineProperty(observed, 0, {
+                get: function () {
+                    getCount += 1;
+                    return { bar: 'baz' };
+                },
+                set: function () { setCount += 1; }
+            });
+            utils.merge(observed, [null]);
+            st.equal(setCount, 0);
+            st.equal(getCount, 1);
+            observed[0] = observed[0]; // eslint-disable-line no-self-assign
+            st.equal(setCount, 1);
+            st.equal(getCount, 2);
+            st.end();
+        }
+    );
+
+    t.end();
+});
+
+test('assign()', function (t) {
+    var target = { a: 1, b: 2 };
+    var source = { b: 3, c: 4 };
+    var result = utils.assign(target, source);
+
+    t.equal(result, target, 'returns the target');
+    t.deepEqual(target, { a: 1, b: 3, c: 4 }, 'target and source are merged');
+    t.deepEqual(source, { b: 3, c: 4 }, 'source is untouched');
+
+    t.end();
+});
+
+test('combine()', function (t) {
+    t.test('both arrays', function (st) {
+        var a = [1];
+        var b = [2];
+        var combined = utils.combine(a, b);
+
+        st.deepEqual(a, [1], 'a is not mutated');
+        st.deepEqual(b, [2], 'b is not mutated');
+        st.notEqual(a, combined, 'a !== combined');
+        st.notEqual(b, combined, 'b !== combined');
+        st.deepEqual(combined, [1, 2], 'combined is a + b');
+
+        st.end();
+    });
+
+    t.test('one array, one non-array', function (st) {
+        var aN = 1;
+        var a = [aN];
+        var bN = 2;
+        var b = [bN];
+
+        var combinedAnB = utils.combine(aN, b);
+        st.deepEqual(b, [bN], 'b is not mutated');
+        st.notEqual(aN, combinedAnB, 'aN + b !== aN');
+        st.notEqual(a, combinedAnB, 'aN + b !== a');
+        st.notEqual(bN, combinedAnB, 'aN + b !== bN');
+        st.notEqual(b, combinedAnB, 'aN + b !== b');
+        st.deepEqual([1, 2], combinedAnB, 'first argument is array-wrapped when not an array');
+
+        var combinedABn = utils.combine(a, bN);
+        st.deepEqual(a, [aN], 'a is not mutated');
+        st.notEqual(aN, combinedABn, 'a + bN !== aN');
+        st.notEqual(a, combinedABn, 'a + bN !== a');
+        st.notEqual(bN, combinedABn, 'a + bN !== bN');
+        st.notEqual(b, combinedABn, 'a + bN !== b');
+        st.deepEqual([1, 2], combinedABn, 'second argument is array-wrapped when not an array');
+
+        st.end();
+    });
+
+    t.test('neither is an array', function (st) {
+        var combined = utils.combine(1, 2);
+        st.notEqual(1, combined, '1 + 2 !== 1');
+        st.notEqual(2, combined, '1 + 2 !== 2');
+        st.deepEqual([1, 2], combined, 'both arguments are array-wrapped when not an array');
+
+        st.end();
+    });
+
+    t.end();
+});
+
+test('isBuffer()', function (t) {
+    forEach([null, undefined, true, false, '', 'abc', 42, 0, NaN, {}, [], function () {}, /a/g], function (x) {
+        t.equal(utils.isBuffer(x), false, inspect(x) + ' is not a buffer');
+    });
+
+    var fakeBuffer = { constructor: Buffer };
+    t.equal(utils.isBuffer(fakeBuffer), false, 'fake buffer is not a buffer');
+
+    var saferBuffer = SaferBuffer.from('abc');
+    t.equal(utils.isBuffer(saferBuffer), true, 'SaferBuffer instance is a buffer');
+
+    var buffer = Buffer.from && Buffer.alloc ? Buffer.from('abc') : new Buffer('abc');
+    t.equal(utils.isBuffer(buffer), true, 'real Buffer instance is a buffer');
+    t.end();
+});
diff --git a/backend/node_modules/range-parser/HISTORY.md b/backend/node_modules/range-parser/HISTORY.md
new file mode 100644
index 0000000..70a973d
--- /dev/null
+++ b/backend/node_modules/range-parser/HISTORY.md
@@ -0,0 +1,56 @@
+1.2.1 / 2019-05-10
+==================
+
+  * Improve error when `str` is not a string
+
+1.2.0 / 2016-06-01
+==================
+
+  * Add `combine` option to combine overlapping ranges
+
+1.1.0 / 2016-05-13
+==================
+
+  * Fix incorrectly returning -1 when there is at least one valid range
+  * perf: remove internal function
+
+1.0.3 / 2015-10-29
+==================
+
+  * perf: enable strict mode
+
+1.0.2 / 2014-09-08
+==================
+
+  * Support Node.js 0.6
+
+1.0.1 / 2014-09-07
+==================
+
+  * Move repository to jshttp
+
+1.0.0 / 2013-12-11
+==================
+
+  * Add repository to package.json
+  * Add MIT license
+
+0.0.4 / 2012-06-17
+==================
+
+  * Change ret -1 for unsatisfiable and -2 when invalid
+
+0.0.3 / 2012-06-17
+==================
+
+  * Fix last-byte-pos default to len - 1
+
+0.0.2 / 2012-06-14
+==================
+
+  * Add `.type`
+
+0.0.1 / 2012-06-11
+==================
+
+  * Initial release
diff --git a/backend/node_modules/range-parser/LICENSE b/backend/node_modules/range-parser/LICENSE
new file mode 100644
index 0000000..3599954
--- /dev/null
+++ b/backend/node_modules/range-parser/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2012-2014 TJ Holowaychuk <tj@vision-media.ca>
+Copyright (c) 2015-2016 Douglas Christopher Wilson <doug@somethingdoug.com
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/range-parser/README.md b/backend/node_modules/range-parser/README.md
new file mode 100644
index 0000000..c247e82
--- /dev/null
+++ b/backend/node_modules/range-parser/README.md
@@ -0,0 +1,84 @@
+# range-parser
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-image]][node-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Range header field parser.
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install range-parser
+```
+
+## API
+
+<!-- eslint-disable no-unused-vars -->
+
+```js
+var parseRange = require('range-parser')
+```
+
+### parseRange(size, header, options)
+
+Parse the given `header` string where `size` is the maximum size of the resource.
+An array of ranges will be returned or negative numbers indicating an error parsing.
+
+  * `-2` signals a malformed header string
+  * `-1` signals an unsatisfiable range
+
+<!-- eslint-disable no-undef -->
+
+```js
+// parse header from request
+var range = parseRange(size, req.headers.range)
+
+// the type of the range
+if (range.type === 'bytes') {
+  // the ranges
+  range.forEach(function (r) {
+    // do something with r.start and r.end
+  })
+}
+```
+
+#### Options
+
+These properties are accepted in the options object.
+
+##### combine
+
+Specifies if overlapping & adjacent ranges should be combined, defaults to `false`.
+When `true`, ranges will be combined and returned as if they were specified that
+way in the header.
+
+<!-- eslint-disable no-undef -->
+
+```js
+parseRange(100, 'bytes=50-55,0-10,5-10,56-60', { combine: true })
+// => [
+//      { start: 0,  end: 10 },
+//      { start: 50, end: 60 }
+//    ]
+```
+
+## License
+
+[MIT](LICENSE)
+
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/range-parser/master
+[coveralls-url]: https://coveralls.io/r/jshttp/range-parser?branch=master
+[node-image]: https://badgen.net/npm/node/range-parser
+[node-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/range-parser
+[npm-url]: https://npmjs.org/package/range-parser
+[npm-version-image]: https://badgen.net/npm/v/range-parser
+[travis-image]: https://badgen.net/travis/jshttp/range-parser/master
+[travis-url]: https://travis-ci.org/jshttp/range-parser
diff --git a/backend/node_modules/range-parser/index.js b/backend/node_modules/range-parser/index.js
new file mode 100644
index 0000000..b7dc5c0
--- /dev/null
+++ b/backend/node_modules/range-parser/index.js
@@ -0,0 +1,162 @@
+/*!
+ * range-parser
+ * Copyright(c) 2012-2014 TJ Holowaychuk
+ * Copyright(c) 2015-2016 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = rangeParser
+
+/**
+ * Parse "Range" header `str` relative to the given file `size`.
+ *
+ * @param {Number} size
+ * @param {String} str
+ * @param {Object} [options]
+ * @return {Array}
+ * @public
+ */
+
+function rangeParser (size, str, options) {
+  if (typeof str !== 'string') {
+    throw new TypeError('argument str must be a string')
+  }
+
+  var index = str.indexOf('=')
+
+  if (index === -1) {
+    return -2
+  }
+
+  // split the range string
+  var arr = str.slice(index + 1).split(',')
+  var ranges = []
+
+  // add ranges type
+  ranges.type = str.slice(0, index)
+
+  // parse all ranges
+  for (var i = 0; i < arr.length; i++) {
+    var range = arr[i].split('-')
+    var start = parseInt(range[0], 10)
+    var end = parseInt(range[1], 10)
+
+    // -nnn
+    if (isNaN(start)) {
+      start = size - end
+      end = size - 1
+    // nnn-
+    } else if (isNaN(end)) {
+      end = size - 1
+    }
+
+    // limit last-byte-pos to current length
+    if (end > size - 1) {
+      end = size - 1
+    }
+
+    // invalid or unsatisifiable
+    if (isNaN(start) || isNaN(end) || start > end || start < 0) {
+      continue
+    }
+
+    // add range
+    ranges.push({
+      start: start,
+      end: end
+    })
+  }
+
+  if (ranges.length < 1) {
+    // unsatisifiable
+    return -1
+  }
+
+  return options && options.combine
+    ? combineRanges(ranges)
+    : ranges
+}
+
+/**
+ * Combine overlapping & adjacent ranges.
+ * @private
+ */
+
+function combineRanges (ranges) {
+  var ordered = ranges.map(mapWithIndex).sort(sortByRangeStart)
+
+  for (var j = 0, i = 1; i < ordered.length; i++) {
+    var range = ordered[i]
+    var current = ordered[j]
+
+    if (range.start > current.end + 1) {
+      // next range
+      ordered[++j] = range
+    } else if (range.end > current.end) {
+      // extend range
+      current.end = range.end
+      current.index = Math.min(current.index, range.index)
+    }
+  }
+
+  // trim ordered array
+  ordered.length = j + 1
+
+  // generate combined range
+  var combined = ordered.sort(sortByRangeIndex).map(mapWithoutIndex)
+
+  // copy ranges type
+  combined.type = ranges.type
+
+  return combined
+}
+
+/**
+ * Map function to add index value to ranges.
+ * @private
+ */
+
+function mapWithIndex (range, index) {
+  return {
+    start: range.start,
+    end: range.end,
+    index: index
+  }
+}
+
+/**
+ * Map function to remove index value from ranges.
+ * @private
+ */
+
+function mapWithoutIndex (range) {
+  return {
+    start: range.start,
+    end: range.end
+  }
+}
+
+/**
+ * Sort function to sort ranges by index.
+ * @private
+ */
+
+function sortByRangeIndex (a, b) {
+  return a.index - b.index
+}
+
+/**
+ * Sort function to sort ranges by start position.
+ * @private
+ */
+
+function sortByRangeStart (a, b) {
+  return a.start - b.start
+}
diff --git a/backend/node_modules/range-parser/package.json b/backend/node_modules/range-parser/package.json
new file mode 100644
index 0000000..abea6d8
--- /dev/null
+++ b/backend/node_modules/range-parser/package.json
@@ -0,0 +1,44 @@
+{
+  "name": "range-parser",
+  "author": "TJ Holowaychuk <tj@vision-media.ca> (http://tjholowaychuk.com)",
+  "description": "Range header field string parser",
+  "version": "1.2.1",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "James Wyatt Cready <wyatt.cready@lanetix.com>",
+    "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)"
+  ],
+  "license": "MIT",
+  "keywords": [
+    "range",
+    "parser",
+    "http"
+  ],
+  "repository": "jshttp/range-parser",
+  "devDependencies": {
+    "deep-equal": "1.0.1",
+    "eslint": "5.16.0",
+    "eslint-config-standard": "12.0.0",
+    "eslint-plugin-markdown": "1.0.0",
+    "eslint-plugin-import": "2.17.2",
+    "eslint-plugin-node": "8.0.1",
+    "eslint-plugin-promise": "4.1.1",
+    "eslint-plugin-standard": "4.0.0",
+    "mocha": "6.1.4",
+    "nyc": "14.1.1"
+  },
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "lint": "eslint --plugin markdown --ext js,md .",
+    "test": "mocha --reporter spec",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "test-travis": "nyc --reporter=text npm test"
+  }
+}
diff --git a/backend/node_modules/raw-body/HISTORY.md b/backend/node_modules/raw-body/HISTORY.md
new file mode 100644
index 0000000..baf0e2d
--- /dev/null
+++ b/backend/node_modules/raw-body/HISTORY.md
@@ -0,0 +1,308 @@
+2.5.2 / 2023-02-21
+==================
+
+  * Fix error message for non-stream argument
+
+2.5.1 / 2022-02-28
+==================
+
+  * Fix error on early async hooks implementations
+
+2.5.0 / 2022-02-21
+==================
+
+  * Prevent loss of async hooks context
+  * Prevent hanging when stream is not readable
+  * deps: http-errors@2.0.0
+    - deps: depd@2.0.0
+    - deps: statuses@2.0.1
+
+2.4.3 / 2022-02-14
+==================
+
+  * deps: bytes@3.1.2
+
+2.4.2 / 2021-11-16
+==================
+
+  * deps: bytes@3.1.1
+  * deps: http-errors@1.8.1
+    - deps: setprototypeof@1.2.0
+    - deps: toidentifier@1.0.1
+
+2.4.1 / 2019-06-25
+==================
+
+  * deps: http-errors@1.7.3
+    - deps: inherits@2.0.4
+
+2.4.0 / 2019-04-17
+==================
+
+  * deps: bytes@3.1.0
+    - Add petabyte (`pb`) support
+  * deps: http-errors@1.7.2
+    - Set constructor name when possible
+    - deps: setprototypeof@1.1.1
+    - deps: statuses@'>= 1.5.0 < 2'
+  * deps: iconv-lite@0.4.24
+    - Added encoding MIK
+
+2.3.3 / 2018-05-08
+==================
+
+  * deps: http-errors@1.6.3
+    - deps: depd@~1.1.2
+    - deps: setprototypeof@1.1.0
+    - deps: statuses@'>= 1.3.1 < 2'
+  * deps: iconv-lite@0.4.23
+    - Fix loading encoding with year appended
+    - Fix deprecation warnings on Node.js 10+
+
+2.3.2 / 2017-09-09
+==================
+
+  * deps: iconv-lite@0.4.19
+    - Fix ISO-8859-1 regression
+    - Update Windows-1255
+
+2.3.1 / 2017-09-07
+==================
+
+  * deps: bytes@3.0.0
+  * deps: http-errors@1.6.2
+    - deps: depd@1.1.1
+  * perf: skip buffer decoding on overage chunk
+
+2.3.0 / 2017-08-04
+==================
+
+  * Add TypeScript definitions
+  * Use `http-errors` for standard emitted errors
+  * deps: bytes@2.5.0
+  * deps: iconv-lite@0.4.18
+    - Add support for React Native
+    - Add a warning if not loaded as utf-8
+    - Fix CESU-8 decoding in Node.js 8
+    - Improve speed of ISO-8859-1 encoding
+
+2.2.0 / 2017-01-02
+==================
+
+  * deps: iconv-lite@0.4.15
+    - Added encoding MS-31J
+    - Added encoding MS-932
+    - Added encoding MS-936
+    - Added encoding MS-949
+    - Added encoding MS-950
+    - Fix GBK/GB18030 handling of Euro character
+
+2.1.7 / 2016-06-19
+==================
+
+  * deps: bytes@2.4.0
+  * perf: remove double-cleanup on happy path
+
+2.1.6 / 2016-03-07
+==================
+
+  * deps: bytes@2.3.0
+    - Drop partial bytes on all parsed units
+    - Fix parsing byte string that looks like hex
+
+2.1.5 / 2015-11-30
+==================
+
+  * deps: bytes@2.2.0
+  * deps: iconv-lite@0.4.13
+
+2.1.4 / 2015-09-27
+==================
+
+  * Fix masking critical errors from `iconv-lite`
+  * deps: iconv-lite@0.4.12
+    - Fix CESU-8 decoding in Node.js 4.x
+
+2.1.3 / 2015-09-12
+==================
+
+  * Fix sync callback when attaching data listener causes sync read
+    - Node.js 0.10 compatibility issue
+
+2.1.2 / 2015-07-05
+==================
+
+  * Fix error stack traces to skip `makeError`
+  * deps: iconv-lite@0.4.11
+    - Add encoding CESU-8
+
+2.1.1 / 2015-06-14
+==================
+
+  * Use `unpipe` module for unpiping requests
+
+2.1.0 / 2015-05-28
+==================
+
+  * deps: iconv-lite@0.4.10
+    - Improved UTF-16 endianness detection
+    - Leading BOM is now removed when decoding
+    - The encoding UTF-16 without BOM now defaults to UTF-16LE when detection fails
+
+2.0.2 / 2015-05-21
+==================
+
+  * deps: bytes@2.1.0
+    - Slight optimizations
+
+2.0.1 / 2015-05-10
+==================
+
+  * Fix a false-positive when unpiping in Node.js 0.8
+
+2.0.0 / 2015-05-08
+==================
+
+  * Return a promise without callback instead of thunk
+  * deps: bytes@2.0.1
+    - units no longer case sensitive when parsing
+
+1.3.4 / 2015-04-15
+==================
+
+  * Fix hanging callback if request aborts during read
+  * deps: iconv-lite@0.4.8
+    - Add encoding alias UNICODE-1-1-UTF-7
+
+1.3.3 / 2015-02-08
+==================
+
+  * deps: iconv-lite@0.4.7
+    - Gracefully support enumerables on `Object.prototype`
+
+1.3.2 / 2015-01-20
+==================
+
+  * deps: iconv-lite@0.4.6
+    - Fix rare aliases of single-byte encodings
+
+1.3.1 / 2014-11-21
+==================
+
+  * deps: iconv-lite@0.4.5
+    - Fix Windows-31J and X-SJIS encoding support
+
+1.3.0 / 2014-07-20
+==================
+
+  * Fully unpipe the stream on error
+    - Fixes `Cannot switch to old mode now` error on Node.js 0.10+
+
+1.2.3 / 2014-07-20
+==================
+
+  * deps: iconv-lite@0.4.4
+    - Added encoding UTF-7
+
+1.2.2 / 2014-06-19
+==================
+
+  * Send invalid encoding error to callback
+
+1.2.1 / 2014-06-15
+==================
+
+  * deps: iconv-lite@0.4.3
+    - Added encodings UTF-16BE and UTF-16 with BOM
+
+1.2.0 / 2014-06-13
+==================
+
+  * Passing string as `options` interpreted as encoding
+  * Support all encodings from `iconv-lite`
+
+1.1.7 / 2014-06-12
+==================
+
+  * use `string_decoder` module from npm
+
+1.1.6 / 2014-05-27
+==================
+
+  * check encoding for old streams1
+  * support node.js < 0.10.6
+
+1.1.5 / 2014-05-14
+==================
+
+  * bump bytes
+
+1.1.4 / 2014-04-19
+==================
+
+  * allow true as an option
+  * bump bytes
+
+1.1.3 / 2014-03-02
+==================
+
+  * fix case when length=null
+
+1.1.2 / 2013-12-01
+==================
+
+  * be less strict on state.encoding check
+
+1.1.1 / 2013-11-27
+==================
+
+  * add engines
+
+1.1.0 / 2013-11-27
+==================
+
+  * add err.statusCode and err.type
+  * allow for encoding option to be true
+  * pause the stream instead of dumping on error
+  * throw if the stream's encoding is set
+
+1.0.1 / 2013-11-19
+==================
+
+  * dont support streams1, throw if dev set encoding
+
+1.0.0 / 2013-11-17
+==================
+
+  * rename `expected` option to `length`
+
+0.2.0 / 2013-11-15
+==================
+
+  * republish
+
+0.1.1 / 2013-11-15
+==================
+
+  * use bytes
+
+0.1.0 / 2013-11-11
+==================
+
+  * generator support
+
+0.0.3 / 2013-10-10
+==================
+
+  * update repo
+
+0.0.2 / 2013-09-14
+==================
+
+  * dump stream on bad headers
+  * listen to events after defining received and buffers
+
+0.0.1 / 2013-09-14
+==================
+
+  * Initial release
diff --git a/backend/node_modules/raw-body/LICENSE b/backend/node_modules/raw-body/LICENSE
new file mode 100644
index 0000000..1029a7a
--- /dev/null
+++ b/backend/node_modules/raw-body/LICENSE
@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2013-2014 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2014-2022 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/raw-body/README.md b/backend/node_modules/raw-body/README.md
new file mode 100644
index 0000000..d9b36d6
--- /dev/null
+++ b/backend/node_modules/raw-body/README.md
@@ -0,0 +1,223 @@
+# raw-body
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build status][github-actions-ci-image]][github-actions-ci-url]
+[![Test coverage][coveralls-image]][coveralls-url]
+
+Gets the entire buffer of a stream either as a `Buffer` or a string.
+Validates the stream's length against an expected length and maximum limit.
+Ideal for parsing request bodies.
+
+## Install
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install raw-body
+```
+
+### TypeScript
+
+This module includes a [TypeScript](https://www.typescriptlang.org/)
+declaration file to enable auto complete in compatible editors and type
+information for TypeScript projects. This module depends on the Node.js
+types, so install `@types/node`:
+
+```sh
+$ npm install @types/node
+```
+
+## API
+
+```js
+var getRawBody = require('raw-body')
+```
+
+### getRawBody(stream, [options], [callback])
+
+**Returns a promise if no callback specified and global `Promise` exists.**
+
+Options:
+
+- `length` - The length of the stream.
+  If the contents of the stream do not add up to this length,
+  an `400` error code is returned.
+- `limit` - The byte limit of the body.
+  This is the number of bytes or any string format supported by
+  [bytes](https://www.npmjs.com/package/bytes),
+  for example `1000`, `'500kb'` or `'3mb'`.
+  If the body ends up being larger than this limit,
+  a `413` error code is returned.
+- `encoding` - The encoding to use to decode the body into a string.
+  By default, a `Buffer` instance will be returned when no encoding is specified.
+  Most likely, you want `utf-8`, so setting `encoding` to `true` will decode as `utf-8`.
+  You can use any type of encoding supported by [iconv-lite](https://www.npmjs.org/package/iconv-lite#readme).
+
+You can also pass a string in place of options to just specify the encoding.
+
+If an error occurs, the stream will be paused, everything unpiped,
+and you are responsible for correctly disposing the stream.
+For HTTP requests, you may need to finish consuming the stream if
+you want to keep the socket open for future requests. For streams
+that use file descriptors, you should `stream.destroy()` or
+`stream.close()` to prevent leaks.
+
+## Errors
+
+This module creates errors depending on the error condition during reading.
+The error may be an error from the underlying Node.js implementation, but is
+otherwise an error created by this module, which has the following attributes:
+
+  * `limit` - the limit in bytes
+  * `length` and `expected` - the expected length of the stream
+  * `received` - the received bytes
+  * `encoding` - the invalid encoding
+  * `status` and `statusCode` - the corresponding status code for the error
+  * `type` - the error type
+
+### Types
+
+The errors from this module have a `type` property which allows for the programmatic
+determination of the type of error returned.
+
+#### encoding.unsupported
+
+This error will occur when the `encoding` option is specified, but the value does
+not map to an encoding supported by the [iconv-lite](https://www.npmjs.org/package/iconv-lite#readme)
+module.
+
+#### entity.too.large
+
+This error will occur when the `limit` option is specified, but the stream has
+an entity that is larger.
+
+#### request.aborted
+
+This error will occur when the request stream is aborted by the client before
+reading the body has finished.
+
+#### request.size.invalid
+
+This error will occur when the `length` option is specified, but the stream has
+emitted more bytes.
+
+#### stream.encoding.set
+
+This error will occur when the given stream has an encoding set on it, making it
+a decoded stream. The stream should not have an encoding set and is expected to
+emit `Buffer` objects.
+
+#### stream.not.readable
+
+This error will occur when the given stream is not readable.
+
+## Examples
+
+### Simple Express example
+
+```js
+var contentType = require('content-type')
+var express = require('express')
+var getRawBody = require('raw-body')
+
+var app = express()
+
+app.use(function (req, res, next) {
+  getRawBody(req, {
+    length: req.headers['content-length'],
+    limit: '1mb',
+    encoding: contentType.parse(req).parameters.charset
+  }, function (err, string) {
+    if (err) return next(err)
+    req.text = string
+    next()
+  })
+})
+
+// now access req.text
+```
+
+### Simple Koa example
+
+```js
+var contentType = require('content-type')
+var getRawBody = require('raw-body')
+var koa = require('koa')
+
+var app = koa()
+
+app.use(function * (next) {
+  this.text = yield getRawBody(this.req, {
+    length: this.req.headers['content-length'],
+    limit: '1mb',
+    encoding: contentType.parse(this.req).parameters.charset
+  })
+  yield next
+})
+
+// now access this.text
+```
+
+### Using as a promise
+
+To use this library as a promise, simply omit the `callback` and a promise is
+returned, provided that a global `Promise` is defined.
+
+```js
+var getRawBody = require('raw-body')
+var http = require('http')
+
+var server = http.createServer(function (req, res) {
+  getRawBody(req)
+    .then(function (buf) {
+      res.statusCode = 200
+      res.end(buf.length + ' bytes submitted')
+    })
+    .catch(function (err) {
+      res.statusCode = 500
+      res.end(err.message)
+    })
+})
+
+server.listen(3000)
+```
+
+### Using with TypeScript
+
+```ts
+import * as getRawBody from 'raw-body';
+import * as http from 'http';
+
+const server = http.createServer((req, res) => {
+  getRawBody(req)
+  .then((buf) => {
+    res.statusCode = 200;
+    res.end(buf.length + ' bytes submitted');
+  })
+  .catch((err) => {
+    res.statusCode = err.statusCode;
+    res.end(err.message);
+  });
+});
+
+server.listen(3000);
+```
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/raw-body.svg
+[npm-url]: https://npmjs.org/package/raw-body
+[node-version-image]: https://img.shields.io/node/v/raw-body.svg
+[node-version-url]: https://nodejs.org/en/download/
+[coveralls-image]: https://img.shields.io/coveralls/stream-utils/raw-body/master.svg
+[coveralls-url]: https://coveralls.io/r/stream-utils/raw-body?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/raw-body.svg
+[downloads-url]: https://npmjs.org/package/raw-body
+[github-actions-ci-image]: https://img.shields.io/github/actions/workflow/status/stream-utils/raw-body/ci.yml?branch=master&label=ci
+[github-actions-ci-url]: https://github.com/jshttp/stream-utils/raw-body?query=workflow%3Aci
diff --git a/backend/node_modules/raw-body/SECURITY.md b/backend/node_modules/raw-body/SECURITY.md
new file mode 100644
index 0000000..2421efc
--- /dev/null
+++ b/backend/node_modules/raw-body/SECURITY.md
@@ -0,0 +1,24 @@
+# Security Policies and Procedures
+
+## Reporting a Bug
+
+The `raw-body` team and community take all security bugs seriously. Thank you
+for improving the security of Express. We appreciate your efforts and
+responsible disclosure and will make every effort to acknowledge your
+contributions.
+
+Report security bugs by emailing the current owners of `raw-body`. This information
+can be found in the npm registry using the command `npm owner ls raw-body`.
+If unsure or unable to get the information from the above, open an issue
+in the [project issue tracker](https://github.com/stream-utils/raw-body/issues)
+asking for the current contact information.
+
+To ensure the timely response to your report, please ensure that the entirety
+of the report is contained within the email body and not solely behind a web
+link or an attachment.
+
+At least one owner will acknowledge your email within 48 hours, and will send a
+more detailed response within 48 hours indicating the next steps in handling
+your report. After the initial reply to your report, the owners will
+endeavor to keep you informed of the progress towards a fix and full
+announcement, and may ask for additional information or guidance.
diff --git a/backend/node_modules/raw-body/index.d.ts b/backend/node_modules/raw-body/index.d.ts
new file mode 100644
index 0000000..dcbbebd
--- /dev/null
+++ b/backend/node_modules/raw-body/index.d.ts
@@ -0,0 +1,87 @@
+import { Readable } from 'stream';
+
+declare namespace getRawBody {
+  export type Encoding = string | true;
+
+  export interface Options {
+    /**
+     * The expected length of the stream.
+     */
+    length?: number | string | null;
+    /**
+     * The byte limit of the body. This is the number of bytes or any string
+     * format supported by `bytes`, for example `1000`, `'500kb'` or `'3mb'`.
+     */
+    limit?: number | string | null;
+    /**
+     * The encoding to use to decode the body into a string. By default, a
+     * `Buffer` instance will be returned when no encoding is specified. Most
+     * likely, you want `utf-8`, so setting encoding to `true` will decode as
+     * `utf-8`. You can use any type of encoding supported by `iconv-lite`.
+     */
+    encoding?: Encoding | null;
+  }
+
+  export interface RawBodyError extends Error {
+    /**
+     * The limit in bytes.
+     */
+    limit?: number;
+    /**
+     * The expected length of the stream.
+     */
+    length?: number;
+    expected?: number;
+    /**
+     * The received bytes.
+     */
+    received?: number;
+    /**
+     * The encoding.
+     */
+    encoding?: string;
+    /**
+     * The corresponding status code for the error.
+     */
+    status: number;
+    statusCode: number;
+    /**
+     * The error type.
+     */
+    type: string;
+  }
+}
+
+/**
+ * Gets the entire buffer of a stream either as a `Buffer` or a string.
+ * Validates the stream's length against an expected length and maximum
+ * limit. Ideal for parsing request bodies.
+ */
+declare function getRawBody(
+  stream: Readable,
+  callback: (err: getRawBody.RawBodyError, body: Buffer) => void
+): void;
+
+declare function getRawBody(
+  stream: Readable,
+  options: (getRawBody.Options & { encoding: getRawBody.Encoding }) | getRawBody.Encoding,
+  callback: (err: getRawBody.RawBodyError, body: string) => void
+): void;
+
+declare function getRawBody(
+  stream: Readable,
+  options: getRawBody.Options,
+  callback: (err: getRawBody.RawBodyError, body: Buffer) => void
+): void;
+
+declare function getRawBody(
+  stream: Readable,
+  options: (getRawBody.Options & { encoding: getRawBody.Encoding }) | getRawBody.Encoding
+): Promise<string>;
+
+declare function getRawBody(
+  stream: Readable,
+  options?: getRawBody.Options
+): Promise<Buffer>;
+
+export = getRawBody;
diff --git a/backend/node_modules/raw-body/index.js b/backend/node_modules/raw-body/index.js
new file mode 100644
index 0000000..9cdcd12
--- /dev/null
+++ b/backend/node_modules/raw-body/index.js
@@ -0,0 +1,336 @@
+/*!
+ * raw-body
+ * Copyright(c) 2013-2014 Jonathan Ong
+ * Copyright(c) 2014-2022 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var asyncHooks = tryRequireAsyncHooks()
+var bytes = require('bytes')
+var createError = require('http-errors')
+var iconv = require('iconv-lite')
+var unpipe = require('unpipe')
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = getRawBody
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var ICONV_ENCODING_MESSAGE_REGEXP = /^Encoding not recognized: /
+
+/**
+ * Get the decoder for a given encoding.
+ *
+ * @param {string} encoding
+ * @private
+ */
+
+function getDecoder (encoding) {
+  if (!encoding) return null
+
+  try {
+    return iconv.getDecoder(encoding)
+  } catch (e) {
+    // error getting decoder
+    if (!ICONV_ENCODING_MESSAGE_REGEXP.test(e.message)) throw e
+
+    // the encoding was not found
+    throw createError(415, 'specified encoding unsupported', {
+      encoding: encoding,
+      type: 'encoding.unsupported'
+    })
+  }
+}
+
+/**
+ * Get the raw body of a stream (typically HTTP).
+ *
+ * @param {object} stream
+ * @param {object|string|function} [options]
+ * @param {function} [callback]
+ * @public
+ */
+
+function getRawBody (stream, options, callback) {
+  var done = callback
+  var opts = options || {}
+
+  // light validation
+  if (stream === undefined) {
+    throw new TypeError('argument stream is required')
+  } else if (typeof stream !== 'object' || stream === null || typeof stream.on !== 'function') {
+    throw new TypeError('argument stream must be a stream')
+  }
+
+  if (options === true || typeof options === 'string') {
+    // short cut for encoding
+    opts = {
+      encoding: options
+    }
+  }
+
+  if (typeof options === 'function') {
+    done = options
+    opts = {}
+  }
+
+  // validate callback is a function, if provided
+  if (done !== undefined && typeof done !== 'function') {
+    throw new TypeError('argument callback must be a function')
+  }
+
+  // require the callback without promises
+  if (!done && !global.Promise) {
+    throw new TypeError('argument callback is required')
+  }
+
+  // get encoding
+  var encoding = opts.encoding !== true
+    ? opts.encoding
+    : 'utf-8'
+
+  // convert the limit to an integer
+  var limit = bytes.parse(opts.limit)
+
+  // convert the expected length to an integer
+  var length = opts.length != null && !isNaN(opts.length)
+    ? parseInt(opts.length, 10)
+    : null
+
+  if (done) {
+    // classic callback style
+    return readStream(stream, encoding, length, limit, wrap(done))
+  }
+
+  return new Promise(function executor (resolve, reject) {
+    readStream(stream, encoding, length, limit, function onRead (err, buf) {
+      if (err) return reject(err)
+      resolve(buf)
+    })
+  })
+}
+
+/**
+ * Halt a stream.
+ *
+ * @param {Object} stream
+ * @private
+ */
+
+function halt (stream) {
+  // unpipe everything from the stream
+  unpipe(stream)
+
+  // pause stream
+  if (typeof stream.pause === 'function') {
+    stream.pause()
+  }
+}
+
+/**
+ * Read the data from the stream.
+ *
+ * @param {object} stream
+ * @param {string} encoding
+ * @param {number} length
+ * @param {number} limit
+ * @param {function} callback
+ * @public
+ */
+
+function readStream (stream, encoding, length, limit, callback) {
+  var complete = false
+  var sync = true
+
+  // check the length and limit options.
+  // note: we intentionally leave the stream paused,
+  // so users should handle the stream themselves.
+  if (limit !== null && length !== null && length > limit) {
+    return done(createError(413, 'request entity too large', {
+      expected: length,
+      length: length,
+      limit: limit,
+      type: 'entity.too.large'
+    }))
+  }
+
+  // streams1: assert request encoding is buffer.
+  // streams2+: assert the stream encoding is buffer.
+  //   stream._decoder: streams1
+  //   state.encoding: streams2
+  //   state.decoder: streams2, specifically < 0.10.6
+  var state = stream._readableState
+  if (stream._decoder || (state && (state.encoding || state.decoder))) {
+    // developer error
+    return done(createError(500, 'stream encoding should not be set', {
+      type: 'stream.encoding.set'
+    }))
+  }
+
+  if (typeof stream.readable !== 'undefined' && !stream.readable) {
+    return done(createError(500, 'stream is not readable', {
+      type: 'stream.not.readable'
+    }))
+  }
+
+  var received = 0
+  var decoder
+
+  try {
+    decoder = getDecoder(encoding)
+  } catch (err) {
+    return done(err)
+  }
+
+  var buffer = decoder
+    ? ''
+    : []
+
+  // attach listeners
+  stream.on('aborted', onAborted)
+  stream.on('close', cleanup)
+  stream.on('data', onData)
+  stream.on('end', onEnd)
+  stream.on('error', onEnd)
+
+  // mark sync section complete
+  sync = false
+
+  function done () {
+    var args = new Array(arguments.length)
+
+    // copy arguments
+    for (var i = 0; i < args.length; i++) {
+      args[i] = arguments[i]
+    }
+
+    // mark complete
+    complete = true
+
+    if (sync) {
+      process.nextTick(invokeCallback)
+    } else {
+      invokeCallback()
+    }
+
+    function invokeCallback () {
+      cleanup()
+
+      if (args[0]) {
+        // halt the stream on error
+        halt(stream)
+      }
+
+      callback.apply(null, args)
+    }
+  }
+
+  function onAborted () {
+    if (complete) return
+
+    done(createError(400, 'request aborted', {
+      code: 'ECONNABORTED',
+      expected: length,
+      length: length,
+      received: received,
+      type: 'request.aborted'
+    }))
+  }
+
+  function onData (chunk) {
+    if (complete) return
+
+    received += chunk.length
+
+    if (limit !== null && received > limit) {
+      done(createError(413, 'request entity too large', {
+        limit: limit,
+        received: received,
+        type: 'entity.too.large'
+      }))
+    } else if (decoder) {
+      buffer += decoder.write(chunk)
+    } else {
+      buffer.push(chunk)
+    }
+  }
+
+  function onEnd (err) {
+    if (complete) return
+    if (err) return done(err)
+
+    if (length !== null && received !== length) {
+      done(createError(400, 'request size did not match content length', {
+        expected: length,
+        length: length,
+        received: received,
+        type: 'request.size.invalid'
+      }))
+    } else {
+      var string = decoder
+        ? buffer + (decoder.end() || '')
+        : Buffer.concat(buffer)
+      done(null, string)
+    }
+  }
+
+  function cleanup () {
+    buffer = null
+
+    stream.removeListener('aborted', onAborted)
+    stream.removeListener('data', onData)
+    stream.removeListener('end', onEnd)
+    stream.removeListener('error', onEnd)
+    stream.removeListener('close', cleanup)
+  }
+}
+
+/**
+ * Try to require async_hooks
+ * @private
+ */
+
+function tryRequireAsyncHooks () {
+  try {
+    return require('async_hooks')
+  } catch (e) {
+    return {}
+  }
+}
+
+/**
+ * Wrap function with async resource, if possible.
+ * AsyncResource.bind static method backported.
+ * @private
+ */
+
+function wrap (fn) {
+  var res
+
+  // create anonymous resource
+  if (asyncHooks.AsyncResource) {
+    res = new asyncHooks.AsyncResource(fn.name || 'bound-anonymous-fn')
+  }
+
+  // incompatible node.js
+  if (!res || !res.runInAsyncScope) {
+    return fn
+  }
+
+  // return bound function
+  return res.runInAsyncScope.bind(res, fn, null)
+}
diff --git a/backend/node_modules/raw-body/package.json b/backend/node_modules/raw-body/package.json
new file mode 100644
index 0000000..aabb1c3
--- /dev/null
+++ b/backend/node_modules/raw-body/package.json
@@ -0,0 +1,49 @@
+{
+  "name": "raw-body",
+  "description": "Get and validate the raw body of a readable stream.",
+  "version": "2.5.2",
+  "author": "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Raynos <raynos2@gmail.com>"
+  ],
+  "license": "MIT",
+  "repository": "stream-utils/raw-body",
+  "dependencies": {
+    "bytes": "3.1.2",
+    "http-errors": "2.0.0",
+    "iconv-lite": "0.4.24",
+    "unpipe": "1.0.0"
+  },
+  "devDependencies": {
+    "bluebird": "3.7.2",
+    "eslint": "8.34.0",
+    "eslint-config-standard": "15.0.1",
+    "eslint-plugin-import": "2.27.5",
+    "eslint-plugin-markdown": "3.0.0",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "6.1.1",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "10.2.0",
+    "nyc": "15.1.0",
+    "readable-stream": "2.3.7",
+    "safe-buffer": "5.2.1"
+  },
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "README.md",
+    "SECURITY.md",
+    "index.d.ts",
+    "index.js"
+  ],
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --trace-deprecation --reporter spec --bail --check-leaks test/",
+    "test-ci": "nyc --reporter=lcovonly --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
+  }
+}
diff --git a/backend/node_modules/readable-stream/.travis.yml b/backend/node_modules/readable-stream/.travis.yml
new file mode 100644
index 0000000..f62cdac
--- /dev/null
+++ b/backend/node_modules/readable-stream/.travis.yml
@@ -0,0 +1,34 @@
+sudo: false
+language: node_js
+before_install:
+  - (test $NPM_LEGACY && npm install -g npm@2 && npm install -g npm@3) || true
+notifications:
+  email: false
+matrix:
+  fast_finish: true
+  include:
+  - node_js: '0.8'
+    env: NPM_LEGACY=true
+  - node_js: '0.10'
+    env: NPM_LEGACY=true
+  - node_js: '0.11'
+    env: NPM_LEGACY=true
+  - node_js: '0.12'
+    env: NPM_LEGACY=true
+  - node_js: 1
+    env: NPM_LEGACY=true
+  - node_js: 2
+    env: NPM_LEGACY=true
+  - node_js: 3
+    env: NPM_LEGACY=true
+  - node_js: 4
+  - node_js: 5
+  - node_js: 6
+  - node_js: 7
+  - node_js: 8
+  - node_js: 9
+script: "npm run test"
+env:
+  global:
+  - secure: rE2Vvo7vnjabYNULNyLFxOyt98BoJexDqsiOnfiD6kLYYsiQGfr/sbZkPMOFm9qfQG7pjqx+zZWZjGSswhTt+626C0t/njXqug7Yps4c3dFblzGfreQHp7wNX5TFsvrxd6dAowVasMp61sJcRnB2w8cUzoe3RAYUDHyiHktwqMc=
+  - secure: g9YINaKAdMatsJ28G9jCGbSaguXCyxSTy+pBO6Ch0Cf57ZLOTka3HqDj8p3nV28LUIHZ3ut5WO43CeYKwt4AUtLpBS3a0dndHdY6D83uY6b2qh5hXlrcbeQTq2cvw2y95F7hm4D1kwrgZ7ViqaKggRcEupAL69YbJnxeUDKWEdI=
diff --git a/backend/node_modules/readable-stream/CONTRIBUTING.md b/backend/node_modules/readable-stream/CONTRIBUTING.md
new file mode 100644
index 0000000..f478d58
--- /dev/null
+++ b/backend/node_modules/readable-stream/CONTRIBUTING.md
@@ -0,0 +1,38 @@
+# Developer's Certificate of Origin 1.1
+
+By making a contribution to this project, I certify that:
+
+* (a) The contribution was created in whole or in part by me and I
+  have the right to submit it under the open source license
+  indicated in the file; or
+
+* (b) The contribution is based upon previous work that, to the best
+  of my knowledge, is covered under an appropriate open source
+  license and I have the right under that license to submit that
+  work with modifications, whether created in whole or in part
+  by me, under the same open source license (unless I am
+  permitted to submit under a different license), as indicated
+  in the file; or
+
+* (c) The contribution was provided directly to me by some other
+  person who certified (a), (b) or (c) and I have not modified
+  it.
+
+* (d) I understand and agree that this project and the contribution
+  are public and that a record of the contribution (including all
+  personal information I submit with it, including my sign-off) is
+  maintained indefinitely and may be redistributed consistent with
+  this project or the open source license(s) involved.
+
+## Moderation Policy
+
+The [Node.js Moderation Policy] applies to this WG.
+
+## Code of Conduct
+
+The [Node.js Code of Conduct][] applies to this WG.
+
+[Node.js Code of Conduct]:
+https://github.com/nodejs/node/blob/master/CODE_OF_CONDUCT.md
+[Node.js Moderation Policy]:
+https://github.com/nodejs/TSC/blob/master/Moderation-Policy.md
diff --git a/backend/node_modules/readable-stream/GOVERNANCE.md b/backend/node_modules/readable-stream/GOVERNANCE.md
new file mode 100644
index 0000000..16ffb93
--- /dev/null
+++ b/backend/node_modules/readable-stream/GOVERNANCE.md
@@ -0,0 +1,136 @@
+### Streams Working Group
+
+The Node.js Streams is jointly governed by a Working Group
+(WG)
+that is responsible for high-level guidance of the project.
+
+The WG has final authority over this project including:
+
+* Technical direction
+* Project governance and process (including this policy)
+* Contribution policy
+* GitHub repository hosting
+* Conduct guidelines
+* Maintaining the list of additional Collaborators
+
+For the current list of WG members, see the project
+[README.md](./README.md#current-project-team-members).
+
+### Collaborators
+
+The readable-stream GitHub repository is
+maintained by the WG and additional Collaborators who are added by the
+WG on an ongoing basis.
+
+Individuals making significant and valuable contributions are made
+Collaborators and given commit-access to the project. These
+individuals are identified by the WG and their addition as
+Collaborators is discussed during the WG meeting.
+
+_Note:_ If you make a significant contribution and are not considered
+for commit-access log an issue or contact a WG member directly and it
+will be brought up in the next WG meeting.
+
+Modifications of the contents of the readable-stream repository are
+made on
+a collaborative basis. Anybody with a GitHub account may propose a
+modification via pull request and it will be considered by the project
+Collaborators. All pull requests must be reviewed and accepted by a
+Collaborator with sufficient expertise who is able to take full
+responsibility for the change. In the case of pull requests proposed
+by an existing Collaborator, an additional Collaborator is required
+for sign-off. Consensus should be sought if additional Collaborators
+participate and there is disagreement around a particular
+modification. See _Consensus Seeking Process_ below for further detail
+on the consensus model used for governance.
+
+Collaborators may opt to elevate significant or controversial
+modifications, or modifications that have not found consensus to the
+WG for discussion by assigning the ***WG-agenda*** tag to a pull
+request or issue. The WG should serve as the final arbiter where
+required.
+
+For the current list of Collaborators, see the project
+[README.md](./README.md#members).
+
+### WG Membership
+
+WG seats are not time-limited.  There is no fixed size of the WG.
+However, the expected target is between 6 and 12, to ensure adequate
+coverage of important areas of expertise, balanced with the ability to
+make decisions efficiently.
+
+There is no specific set of requirements or qualifications for WG
+membership beyond these rules.
+
+The WG may add additional members to the WG by unanimous consensus.
+
+A WG member may be removed from the WG by voluntary resignation, or by
+unanimous consensus of all other WG members.
+
+Changes to WG membership should be posted in the agenda, and may be
+suggested as any other agenda item (see "WG Meetings" below).
+
+If an addition or removal is proposed during a meeting, and the full
+WG is not in attendance to participate, then the addition or removal
+is added to the agenda for the subsequent meeting.  This is to ensure
+that all members are given the opportunity to participate in all
+membership decisions.  If a WG member is unable to attend a meeting
+where a planned membership decision is being made, then their consent
+is assumed.
+
+No more than 1/3 of the WG members may be affiliated with the same
+employer.  If removal or resignation of a WG member, or a change of
+employment by a WG member, creates a situation where more than 1/3 of
+the WG membership shares an employer, then the situation must be
+immediately remedied by the resignation or removal of one or more WG
+members affiliated with the over-represented employer(s).
+
+### WG Meetings
+
+The WG meets occasionally on a Google Hangout On Air. A designated moderator
+approved by the WG runs the meeting. Each meeting should be
+published to YouTube.
+
+Items are added to the WG agenda that are considered contentious or
+are modifications of governance, contribution policy, WG membership,
+or release process.
+
+The intention of the agenda is not to approve or review all patches;
+that should happen continuously on GitHub and be handled by the larger
+group of Collaborators.
+
+Any community member or contributor can ask that something be added to
+the next meeting's agenda by logging a GitHub Issue. Any Collaborator,
+WG member or the moderator can add the item to the agenda by adding
+the ***WG-agenda*** tag to the issue.
+
+Prior to each WG meeting the moderator will share the Agenda with
+members of the WG. WG members can add any items they like to the
+agenda at the beginning of each meeting. The moderator and the WG
+cannot veto or remove items.
+
+The WG may invite persons or representatives from certain projects to
+participate in a non-voting capacity.
+
+The moderator is responsible for summarizing the discussion of each
+agenda item and sends it as a pull request after the meeting.
+
+### Consensus Seeking Process
+
+The WG follows a
+[Consensus
+Seeking](http://en.wikipedia.org/wiki/Consensus-seeking_decision-making)
+decision-making model.
+
+When an agenda item has appeared to reach a consensus the moderator
+will ask "Does anyone object?" as a final call for dissent from the
+consensus.
+
+If an agenda item cannot reach a consensus a WG member can call for
+either a closing vote or a vote to table the issue to the next
+meeting. The call for a vote must be seconded by a majority of the WG
+or else the discussion will continue. Simple majority wins.
+
+Note that changes to WG membership require a majority consensus.  See
+"WG Membership" above.
diff --git a/backend/node_modules/readable-stream/LICENSE b/backend/node_modules/readable-stream/LICENSE
new file mode 100644
index 0000000..2873b3b
--- /dev/null
+++ b/backend/node_modules/readable-stream/LICENSE
@@ -0,0 +1,47 @@
+Node.js is licensed for use as follows:
+
+"""
+Copyright Node.js contributors. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
+"""
+
+This license applies to parts of Node.js originating from the
+https://github.com/joyent/node repository:
+
+"""
+Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
+"""
diff --git a/backend/node_modules/readable-stream/README.md b/backend/node_modules/readable-stream/README.md
new file mode 100644
index 0000000..f1c5a93
--- /dev/null
+++ b/backend/node_modules/readable-stream/README.md
@@ -0,0 +1,58 @@
+# readable-stream
+
+***Node-core v8.17.0 streams for userland*** [![Build Status](https://travis-ci.org/nodejs/readable-stream.svg?branch=master)](https://travis-ci.org/nodejs/readable-stream)
+
+
+[![NPM](https://nodei.co/npm/readable-stream.png?downloads=true&downloadRank=true)](https://nodei.co/npm/readable-stream/)
+[![NPM](https://nodei.co/npm-dl/readable-stream.png?&months=6&height=3)](https://nodei.co/npm/readable-stream/)
+
+
+[![Sauce Test Status](https://saucelabs.com/browser-matrix/readable-stream.svg)](https://saucelabs.com/u/readable-stream)
+
+```bash
+npm install --save readable-stream
+```
+
+***Node-core streams for userland***
+
+This package is a mirror of the Streams2 and Streams3 implementations in
+Node-core.
+
+Full documentation may be found on the [Node.js website](https://nodejs.org/dist/v8.17.0/docs/api/stream.html).
+
+If you want to guarantee a stable streams base, regardless of what version of
+Node you, or the users of your libraries are using, use **readable-stream** *only* and avoid the *"stream"* module in Node-core, for background see [this blogpost](http://r.va.gg/2014/06/why-i-dont-use-nodes-core-stream-module.html).
+
+As of version 2.0.0 **readable-stream** uses semantic versioning.
+
+# Streams Working Group
+
+`readable-stream` is maintained by the Streams Working Group, which
+oversees the development and maintenance of the Streams API within
+Node.js. The responsibilities of the Streams Working Group include:
+
+* Addressing stream issues on the Node.js issue tracker.
+* Authoring and editing stream documentation within the Node.js project.
+* Reviewing changes to stream subclasses within the Node.js project.
+* Redirecting changes to streams from the Node.js project to this
+  project.
+* Assisting in the implementation of stream providers within Node.js.
+* Recommending versions of `readable-stream` to be included in Node.js.
+* Messaging about the future of streams to give the community advance
+  notice of changes.
+
+<a name="members"></a>
+## Team Members
+
+* **Chris Dickinson** ([@chrisdickinson](https://github.com/chrisdickinson)) &lt;christopher.s.dickinson@gmail.com&gt;
+  - Release GPG key: 9554F04D7259F04124DE6B476D5A82AC7E37093B
+* **Calvin Metcalf** ([@calvinmetcalf](https://github.com/calvinmetcalf)) &lt;calvin.metcalf@gmail.com&gt;
+  - Release GPG key: F3EF5F62A87FC27A22E643F714CE4FF5015AA242
+* **Rod Vagg** ([@rvagg](https://github.com/rvagg)) &lt;rod@vagg.org&gt;
+  - Release GPG key: DD8F2338BAE7501E3DD5AC78C273792F7D83545D
+* **Sam Newman** ([@sonewman](https://github.com/sonewman)) &lt;newmansam@outlook.com&gt;
+* **Mathias Buus** ([@mafintosh](https://github.com/mafintosh)) &lt;mathiasbuus@gmail.com&gt;
+* **Domenic Denicola** ([@domenic](https://github.com/domenic)) &lt;d@domenic.me&gt;
+* **Matteo Collina** ([@mcollina](https://github.com/mcollina)) &lt;matteo.collina@gmail.com&gt;
+  - Release GPG key: 3ABC01543F22DD2239285CDD818674489FBC127E
+* **Irina Shestak** ([@lrlna](https://github.com/lrlna)) &lt;shestak.irina@gmail.com&gt;
diff --git a/backend/node_modules/readable-stream/doc/wg-meetings/2015-01-30.md b/backend/node_modules/readable-stream/doc/wg-meetings/2015-01-30.md
new file mode 100644
index 0000000..83275f1
--- /dev/null
+++ b/backend/node_modules/readable-stream/doc/wg-meetings/2015-01-30.md
@@ -0,0 +1,60 @@
+# streams WG Meeting 2015-01-30
+
+## Links
+
+* **Google Hangouts Video**: http://www.youtube.com/watch?v=I9nDOSGfwZg
+* **GitHub Issue**: https://github.com/iojs/readable-stream/issues/106
+* **Original Minutes Google Doc**: https://docs.google.com/document/d/17aTgLnjMXIrfjgNaTUnHQO7m3xgzHR2VXBTmi03Qii4/
+
+## Agenda
+
+Extracted from https://github.com/iojs/readable-stream/labels/wg-agenda prior to meeting.
+
+* adopt a charter [#105](https://github.com/iojs/readable-stream/issues/105)
+* release and versioning strategy [#101](https://github.com/iojs/readable-stream/issues/101)
+* simpler stream creation [#102](https://github.com/iojs/readable-stream/issues/102)
+* proposal: deprecate implicit flowing of streams [#99](https://github.com/iojs/readable-stream/issues/99)
+
+## Minutes
+
+### adopt a charter
+
+* group: +1's all around
+
+### What versioning scheme should be adopted?
+* group: +1’s 3.0.0
+* domenic+group: pulling in patches from other sources where appropriate
+* mikeal: version independently, suggesting versions for io.js
+* mikeal+domenic: work with TC to notify in advance of changes
+simpler stream creation
+
+### streamline creation of streams
+* sam: streamline creation of streams
+* domenic: nice simple solution posted
+  but, we lose the opportunity to change the model
+  may not be backwards incompatible (double check keys)
+
+  **action item:** domenic will check
+
+### remove implicit flowing of streams on(‘data’)
+* add isFlowing / isPaused
+* mikeal: worrying that we’re documenting polyfill methods – confuses users
+* domenic: more reflective API is probably good, with warning labels for users
+* new section for mad scientists (reflective stream access)
+* calvin: name the “third state”
+* mikeal: maybe borrow the name from whatwg?
+* domenic: we’re missing the “third state”
+* consensus: kind of difficult to name the third state
+* mikeal: figure out differences in states / compat
+* mathias: always flow on data – eliminates third state
+  * explore what it breaks
+
+**action items:**
+* ask isaac for ability to list packages by what public io.js APIs they use (esp. Stream)
+* ask rod/build for infrastructure
+* **chris**: explore the “flow on data” approach
+* add isPaused/isFlowing
+* add new docs section
+* move isPaused to that section
+
+
diff --git a/backend/node_modules/readable-stream/duplex-browser.js b/backend/node_modules/readable-stream/duplex-browser.js
new file mode 100644
index 0000000..f8b2db8
--- /dev/null
+++ b/backend/node_modules/readable-stream/duplex-browser.js
@@ -0,0 +1 @@
+module.exports = require('./lib/_stream_duplex.js');
diff --git a/backend/node_modules/readable-stream/duplex.js b/backend/node_modules/readable-stream/duplex.js
new file mode 100644
index 0000000..46924cb
--- /dev/null
+++ b/backend/node_modules/readable-stream/duplex.js
@@ -0,0 +1 @@
+module.exports = require('./readable').Duplex
diff --git a/backend/node_modules/readable-stream/lib/_stream_duplex.js b/backend/node_modules/readable-stream/lib/_stream_duplex.js
new file mode 100644
index 0000000..57003c3
--- /dev/null
+++ b/backend/node_modules/readable-stream/lib/_stream_duplex.js
@@ -0,0 +1,131 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// a duplex stream is just a stream that is both readable and writable.
+// Since JS doesn't have multiple prototypal inheritance, this class
+// prototypally inherits from Readable, and then parasitically from
+// Writable.
+
+'use strict';
+
+/*<replacement>*/
+
+var pna = require('process-nextick-args');
+/*</replacement>*/
+
+/*<replacement>*/
+var objectKeys = Object.keys || function (obj) {
+  var keys = [];
+  for (var key in obj) {
+    keys.push(key);
+  }return keys;
+};
+/*</replacement>*/
+
+module.exports = Duplex;
+
+/*<replacement>*/
+var util = Object.create(require('core-util-is'));
+util.inherits = require('inherits');
+/*</replacement>*/
+
+var Readable = require('./_stream_readable');
+var Writable = require('./_stream_writable');
+
+util.inherits(Duplex, Readable);
+
+{
+  // avoid scope creep, the keys array can then be collected
+  var keys = objectKeys(Writable.prototype);
+  for (var v = 0; v < keys.length; v++) {
+    var method = keys[v];
+    if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
+  }
+}
+
+function Duplex(options) {
+  if (!(this instanceof Duplex)) return new Duplex(options);
+
+  Readable.call(this, options);
+  Writable.call(this, options);
+
+  if (options && options.readable === false) this.readable = false;
+
+  if (options && options.writable === false) this.writable = false;
+
+  this.allowHalfOpen = true;
+  if (options && options.allowHalfOpen === false) this.allowHalfOpen = false;
+
+  this.once('end', onend);
+}
+
+Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function () {
+    return this._writableState.highWaterMark;
+  }
+});
+
+// the no-half-open enforcer
+function onend() {
+  // if we allow half-open state, or if the writable side ended,
+  // then we're ok.
+  if (this.allowHalfOpen || this._writableState.ended) return;
+
+  // no more data can be written.
+  // But allow more writes to happen in this tick.
+  pna.nextTick(onEndNT, this);
+}
+
+function onEndNT(self) {
+  self.end();
+}
+
+Object.defineProperty(Duplex.prototype, 'destroyed', {
+  get: function () {
+    if (this._readableState === undefined || this._writableState === undefined) {
+      return false;
+    }
+    return this._readableState.destroyed && this._writableState.destroyed;
+  },
+  set: function (value) {
+    // we ignore the value if the stream
+    // has not been initialized yet
+    if (this._readableState === undefined || this._writableState === undefined) {
+      return;
+    }
+
+    // backward compatibility, the user is explicitly
+    // managing destroyed
+    this._readableState.destroyed = value;
+    this._writableState.destroyed = value;
+  }
+});
+
+Duplex.prototype._destroy = function (err, cb) {
+  this.push(null);
+  this.end();
+
+  pna.nextTick(cb, err);
+};
\ No newline at end of file
diff --git a/backend/node_modules/readable-stream/lib/_stream_passthrough.js b/backend/node_modules/readable-stream/lib/_stream_passthrough.js
new file mode 100644
index 0000000..612edb4
--- /dev/null
+++ b/backend/node_modules/readable-stream/lib/_stream_passthrough.js
@@ -0,0 +1,47 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// a passthrough stream.
+// basically just the most minimal sort of Transform stream.
+// Every written chunk gets output as-is.
+
+'use strict';
+
+module.exports = PassThrough;
+
+var Transform = require('./_stream_transform');
+
+/*<replacement>*/
+var util = Object.create(require('core-util-is'));
+util.inherits = require('inherits');
+/*</replacement>*/
+
+util.inherits(PassThrough, Transform);
+
+function PassThrough(options) {
+  if (!(this instanceof PassThrough)) return new PassThrough(options);
+
+  Transform.call(this, options);
+}
+
+PassThrough.prototype._transform = function (chunk, encoding, cb) {
+  cb(null, chunk);
+};
\ No newline at end of file
diff --git a/backend/node_modules/readable-stream/lib/_stream_readable.js b/backend/node_modules/readable-stream/lib/_stream_readable.js
new file mode 100644
index 0000000..3af95cb
--- /dev/null
+++ b/backend/node_modules/readable-stream/lib/_stream_readable.js
@@ -0,0 +1,1019 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+'use strict';
+
+/*<replacement>*/
+
+var pna = require('process-nextick-args');
+/*</replacement>*/
+
+module.exports = Readable;
+
+/*<replacement>*/
+var isArray = require('isarray');
+/*</replacement>*/
+
+/*<replacement>*/
+var Duplex;
+/*</replacement>*/
+
+Readable.ReadableState = ReadableState;
+
+/*<replacement>*/
+var EE = require('events').EventEmitter;
+
+var EElistenerCount = function (emitter, type) {
+  return emitter.listeners(type).length;
+};
+/*</replacement>*/
+
+/*<replacement>*/
+var Stream = require('./internal/streams/stream');
+/*</replacement>*/
+
+/*<replacement>*/
+
+var Buffer = require('safe-buffer').Buffer;
+var OurUint8Array = (typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : typeof self !== 'undefined' ? self : {}).Uint8Array || function () {};
+function _uint8ArrayToBuffer(chunk) {
+  return Buffer.from(chunk);
+}
+function _isUint8Array(obj) {
+  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
+}
+
+/*</replacement>*/
+
+/*<replacement>*/
+var util = Object.create(require('core-util-is'));
+util.inherits = require('inherits');
+/*</replacement>*/
+
+/*<replacement>*/
+var debugUtil = require('util');
+var debug = void 0;
+if (debugUtil && debugUtil.debuglog) {
+  debug = debugUtil.debuglog('stream');
+} else {
+  debug = function () {};
+}
+/*</replacement>*/
+
+var BufferList = require('./internal/streams/BufferList');
+var destroyImpl = require('./internal/streams/destroy');
+var StringDecoder;
+
+util.inherits(Readable, Stream);
+
+var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];
+
+function prependListener(emitter, event, fn) {
+  // Sadly this is not cacheable as some libraries bundle their own
+  // event emitter implementation with them.
+  if (typeof emitter.prependListener === 'function') return emitter.prependListener(event, fn);
+
+  // This is a hack to make sure that our error handler is attached before any
+  // userland ones.  NEVER DO THIS. This is here only because this code needs
+  // to continue to work with older versions of Node.js that do not include
+  // the prependListener() method. The goal is to eventually remove this hack.
+  if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
+}
+
+function ReadableState(options, stream) {
+  Duplex = Duplex || require('./_stream_duplex');
+
+  options = options || {};
+
+  // Duplex streams are both readable and writable, but share
+  // the same options object.
+  // However, some cases require setting options to different
+  // values for the readable and the writable sides of the duplex stream.
+  // These options can be provided separately as readableXXX and writableXXX.
+  var isDuplex = stream instanceof Duplex;
+
+  // object stream flag. Used to make read(n) ignore n and to
+  // make all the buffer merging and length checks go away
+  this.objectMode = !!options.objectMode;
+
+  if (isDuplex) this.objectMode = this.objectMode || !!options.readableObjectMode;
+
+  // the point at which it stops calling _read() to fill the buffer
+  // Note: 0 is a valid value, means "don't call _read preemptively ever"
+  var hwm = options.highWaterMark;
+  var readableHwm = options.readableHighWaterMark;
+  var defaultHwm = this.objectMode ? 16 : 16 * 1024;
+
+  if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (readableHwm || readableHwm === 0)) this.highWaterMark = readableHwm;else this.highWaterMark = defaultHwm;
+
+  // cast to ints.
+  this.highWaterMark = Math.floor(this.highWaterMark);
+
+  // A linked list is used to store data chunks instead of an array because the
+  // linked list can remove elements from the beginning faster than
+  // array.shift()
+  this.buffer = new BufferList();
+  this.length = 0;
+  this.pipes = null;
+  this.pipesCount = 0;
+  this.flowing = null;
+  this.ended = false;
+  this.endEmitted = false;
+  this.reading = false;
+
+  // a flag to be able to tell if the event 'readable'/'data' is emitted
+  // immediately, or on a later tick.  We set this to true at first, because
+  // any actions that shouldn't happen until "later" should generally also
+  // not happen before the first read call.
+  this.sync = true;
+
+  // whenever we return null, then we set a flag to say
+  // that we're awaiting a 'readable' event emission.
+  this.needReadable = false;
+  this.emittedReadable = false;
+  this.readableListening = false;
+  this.resumeScheduled = false;
+
+  // has it been destroyed
+  this.destroyed = false;
+
+  // Crypto is kind of old and crusty.  Historically, its default string
+  // encoding is 'binary' so we have to make this configurable.
+  // Everything else in the universe uses 'utf8', though.
+  this.defaultEncoding = options.defaultEncoding || 'utf8';
+
+  // the number of writers that are awaiting a drain event in .pipe()s
+  this.awaitDrain = 0;
+
+  // if true, a maybeReadMore has been scheduled
+  this.readingMore = false;
+
+  this.decoder = null;
+  this.encoding = null;
+  if (options.encoding) {
+    if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
+    this.decoder = new StringDecoder(options.encoding);
+    this.encoding = options.encoding;
+  }
+}
+
+function Readable(options) {
+  Duplex = Duplex || require('./_stream_duplex');
+
+  if (!(this instanceof Readable)) return new Readable(options);
+
+  this._readableState = new ReadableState(options, this);
+
+  // legacy
+  this.readable = true;
+
+  if (options) {
+    if (typeof options.read === 'function') this._read = options.read;
+
+    if (typeof options.destroy === 'function') this._destroy = options.destroy;
+  }
+
+  Stream.call(this);
+}
+
+Object.defineProperty(Readable.prototype, 'destroyed', {
+  get: function () {
+    if (this._readableState === undefined) {
+      return false;
+    }
+    return this._readableState.destroyed;
+  },
+  set: function (value) {
+    // we ignore the value if the stream
+    // has not been initialized yet
+    if (!this._readableState) {
+      return;
+    }
+
+    // backward compatibility, the user is explicitly
+    // managing destroyed
+    this._readableState.destroyed = value;
+  }
+});
+
+Readable.prototype.destroy = destroyImpl.destroy;
+Readable.prototype._undestroy = destroyImpl.undestroy;
+Readable.prototype._destroy = function (err, cb) {
+  this.push(null);
+  cb(err);
+};
+
+// Manually shove something into the read() buffer.
+// This returns true if the highWaterMark has not been hit yet,
+// similar to how Writable.write() returns true if you should
+// write() some more.
+Readable.prototype.push = function (chunk, encoding) {
+  var state = this._readableState;
+  var skipChunkCheck;
+
+  if (!state.objectMode) {
+    if (typeof chunk === 'string') {
+      encoding = encoding || state.defaultEncoding;
+      if (encoding !== state.encoding) {
+        chunk = Buffer.from(chunk, encoding);
+        encoding = '';
+      }
+      skipChunkCheck = true;
+    }
+  } else {
+    skipChunkCheck = true;
+  }
+
+  return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);
+};
+
+// Unshift should *always* be something directly out of read()
+Readable.prototype.unshift = function (chunk) {
+  return readableAddChunk(this, chunk, null, true, false);
+};
+
+function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) {
+  var state = stream._readableState;
+  if (chunk === null) {
+    state.reading = false;
+    onEofChunk(stream, state);
+  } else {
+    var er;
+    if (!skipChunkCheck) er = chunkInvalid(state, chunk);
+    if (er) {
+      stream.emit('error', er);
+    } else if (state.objectMode || chunk && chunk.length > 0) {
+      if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) {
+        chunk = _uint8ArrayToBuffer(chunk);
+      }
+
+      if (addToFront) {
+        if (state.endEmitted) stream.emit('error', new Error('stream.unshift() after end event'));else addChunk(stream, state, chunk, true);
+      } else if (state.ended) {
+        stream.emit('error', new Error('stream.push() after EOF'));
+      } else {
+        state.reading = false;
+        if (state.decoder && !encoding) {
+          chunk = state.decoder.write(chunk);
+          if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state);
+        } else {
+          addChunk(stream, state, chunk, false);
+        }
+      }
+    } else if (!addToFront) {
+      state.reading = false;
+    }
+  }
+
+  return needMoreData(state);
+}
+
+function addChunk(stream, state, chunk, addToFront) {
+  if (state.flowing && state.length === 0 && !state.sync) {
+    stream.emit('data', chunk);
+    stream.read(0);
+  } else {
+    // update the buffer info.
+    state.length += state.objectMode ? 1 : chunk.length;
+    if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);
+
+    if (state.needReadable) emitReadable(stream);
+  }
+  maybeReadMore(stream, state);
+}
+
+function chunkInvalid(state, chunk) {
+  var er;
+  if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
+    er = new TypeError('Invalid non-string/buffer chunk');
+  }
+  return er;
+}
+
+// if it's past the high water mark, we can push in some more.
+// Also, if we have no data yet, we can stand some
+// more bytes.  This is to work around cases where hwm=0,
+// such as the repl.  Also, if the push() triggered a
+// readable event, and the user called read(largeNumber) such that
+// needReadable was set, then we ought to push more, so that another
+// 'readable' event will be triggered.
+function needMoreData(state) {
+  return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0);
+}
+
+Readable.prototype.isPaused = function () {
+  return this._readableState.flowing === false;
+};
+
+// backwards compatibility.
+Readable.prototype.setEncoding = function (enc) {
+  if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
+  this._readableState.decoder = new StringDecoder(enc);
+  this._readableState.encoding = enc;
+  return this;
+};
+
+// Don't raise the hwm > 8MB
+var MAX_HWM = 0x800000;
+function computeNewHighWaterMark(n) {
+  if (n >= MAX_HWM) {
+    n = MAX_HWM;
+  } else {
+    // Get the next highest power of 2 to prevent increasing hwm excessively in
+    // tiny amounts
+    n--;
+    n |= n >>> 1;
+    n |= n >>> 2;
+    n |= n >>> 4;
+    n |= n >>> 8;
+    n |= n >>> 16;
+    n++;
+  }
+  return n;
+}
+
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function howMuchToRead(n, state) {
+  if (n <= 0 || state.length === 0 && state.ended) return 0;
+  if (state.objectMode) return 1;
+  if (n !== n) {
+    // Only flow one buffer at a time
+    if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;
+  }
+  // If we're asking for more than the current hwm, then raise the hwm.
+  if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);
+  if (n <= state.length) return n;
+  // Don't have enough
+  if (!state.ended) {
+    state.needReadable = true;
+    return 0;
+  }
+  return state.length;
+}
+
+// you can override either this method, or the async _read(n) below.
+Readable.prototype.read = function (n) {
+  debug('read', n);
+  n = parseInt(n, 10);
+  var state = this._readableState;
+  var nOrig = n;
+
+  if (n !== 0) state.emittedReadable = false;
+
+  // if we're doing read(0) to trigger a readable event, but we
+  // already have a bunch of data in the buffer, then just trigger
+  // the 'readable' event and move on.
+  if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) {
+    debug('read: emitReadable', state.length, state.ended);
+    if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);
+    return null;
+  }
+
+  n = howMuchToRead(n, state);
+
+  // if we've ended, and we're now clear, then finish it up.
+  if (n === 0 && state.ended) {
+    if (state.length === 0) endReadable(this);
+    return null;
+  }
+
+  // All the actual chunk generation logic needs to be
+  // *below* the call to _read.  The reason is that in certain
+  // synthetic stream cases, such as passthrough streams, _read
+  // may be a completely synchronous operation which may change
+  // the state of the read buffer, providing enough data when
+  // before there was *not* enough.
+  //
+  // So, the steps are:
+  // 1. Figure out what the state of things will be after we do
+  // a read from the buffer.
+  //
+  // 2. If that resulting state will trigger a _read, then call _read.
+  // Note that this may be asynchronous, or synchronous.  Yes, it is
+  // deeply ugly to write APIs this way, but that still doesn't mean
+  // that the Readable class should behave improperly, as streams are
+  // designed to be sync/async agnostic.
+  // Take note if the _read call is sync or async (ie, if the read call
+  // has returned yet), so that we know whether or not it's safe to emit
+  // 'readable' etc.
+  //
+  // 3. Actually pull the requested chunks out of the buffer and return.
+
+  // if we need a readable event, then we need to do some reading.
+  var doRead = state.needReadable;
+  debug('need readable', doRead);
+
+  // if we currently have less than the highWaterMark, then also read some
+  if (state.length === 0 || state.length - n < state.highWaterMark) {
+    doRead = true;
+    debug('length less than watermark', doRead);
+  }
+
+  // however, if we've ended, then there's no point, and if we're already
+  // reading, then it's unnecessary.
+  if (state.ended || state.reading) {
+    doRead = false;
+    debug('reading or ended', doRead);
+  } else if (doRead) {
+    debug('do read');
+    state.reading = true;
+    state.sync = true;
+    // if the length is currently zero, then we *need* a readable event.
+    if (state.length === 0) state.needReadable = true;
+    // call internal read method
+    this._read(state.highWaterMark);
+    state.sync = false;
+    // If _read pushed data synchronously, then `reading` will be false,
+    // and we need to re-evaluate how much data we can return to the user.
+    if (!state.reading) n = howMuchToRead(nOrig, state);
+  }
+
+  var ret;
+  if (n > 0) ret = fromList(n, state);else ret = null;
+
+  if (ret === null) {
+    state.needReadable = true;
+    n = 0;
+  } else {
+    state.length -= n;
+  }
+
+  if (state.length === 0) {
+    // If we have nothing in the buffer, then we want to know
+    // as soon as we *do* get something into the buffer.
+    if (!state.ended) state.needReadable = true;
+
+    // If we tried to read() past the EOF, then emit end on the next tick.
+    if (nOrig !== n && state.ended) endReadable(this);
+  }
+
+  if (ret !== null) this.emit('data', ret);
+
+  return ret;
+};
+
+function onEofChunk(stream, state) {
+  if (state.ended) return;
+  if (state.decoder) {
+    var chunk = state.decoder.end();
+    if (chunk && chunk.length) {
+      state.buffer.push(chunk);
+      state.length += state.objectMode ? 1 : chunk.length;
+    }
+  }
+  state.ended = true;
+
+  // emit 'readable' now to make sure it gets picked up.
+  emitReadable(stream);
+}
+
+// Don't emit readable right away in sync mode, because this can trigger
+// another read() call => stack overflow.  This way, it might trigger
+// a nextTick recursion warning, but that's not so bad.
+function emitReadable(stream) {
+  var state = stream._readableState;
+  state.needReadable = false;
+  if (!state.emittedReadable) {
+    debug('emitReadable', state.flowing);
+    state.emittedReadable = true;
+    if (state.sync) pna.nextTick(emitReadable_, stream);else emitReadable_(stream);
+  }
+}
+
+function emitReadable_(stream) {
+  debug('emit readable');
+  stream.emit('readable');
+  flow(stream);
+}
+
+// at this point, the user has presumably seen the 'readable' event,
+// and called read() to consume some data.  that may have triggered
+// in turn another _read(n) call, in which case reading = true if
+// it's in progress.
+// However, if we're not ended, or reading, and the length < hwm,
+// then go ahead and try to read some more preemptively.
+function maybeReadMore(stream, state) {
+  if (!state.readingMore) {
+    state.readingMore = true;
+    pna.nextTick(maybeReadMore_, stream, state);
+  }
+}
+
+function maybeReadMore_(stream, state) {
+  var len = state.length;
+  while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) {
+    debug('maybeReadMore read 0');
+    stream.read(0);
+    if (len === state.length)
+      // didn't get any data, stop spinning.
+      break;else len = state.length;
+  }
+  state.readingMore = false;
+}
+
+// abstract method.  to be overridden in specific implementation classes.
+// call cb(er, data) where data is <= n in length.
+// for virtual (non-string, non-buffer) streams, "length" is somewhat
+// arbitrary, and perhaps not very meaningful.
+Readable.prototype._read = function (n) {
+  this.emit('error', new Error('_read() is not implemented'));
+};
+
+Readable.prototype.pipe = function (dest, pipeOpts) {
+  var src = this;
+  var state = this._readableState;
+
+  switch (state.pipesCount) {
+    case 0:
+      state.pipes = dest;
+      break;
+    case 1:
+      state.pipes = [state.pipes, dest];
+      break;
+    default:
+      state.pipes.push(dest);
+      break;
+  }
+  state.pipesCount += 1;
+  debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
+
+  var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;
+
+  var endFn = doEnd ? onend : unpipe;
+  if (state.endEmitted) pna.nextTick(endFn);else src.once('end', endFn);
+
+  dest.on('unpipe', onunpipe);
+  function onunpipe(readable, unpipeInfo) {
+    debug('onunpipe');
+    if (readable === src) {
+      if (unpipeInfo && unpipeInfo.hasUnpiped === false) {
+        unpipeInfo.hasUnpiped = true;
+        cleanup();
+      }
+    }
+  }
+
+  function onend() {
+    debug('onend');
+    dest.end();
+  }
+
+  // when the dest drains, it reduces the awaitDrain counter
+  // on the source.  This would be more elegant with a .once()
+  // handler in flow(), but adding and removing repeatedly is
+  // too slow.
+  var ondrain = pipeOnDrain(src);
+  dest.on('drain', ondrain);
+
+  var cleanedUp = false;
+  function cleanup() {
+    debug('cleanup');
+    // cleanup event handlers once the pipe is broken
+    dest.removeListener('close', onclose);
+    dest.removeListener('finish', onfinish);
+    dest.removeListener('drain', ondrain);
+    dest.removeListener('error', onerror);
+    dest.removeListener('unpipe', onunpipe);
+    src.removeListener('end', onend);
+    src.removeListener('end', unpipe);
+    src.removeListener('data', ondata);
+
+    cleanedUp = true;
+
+    // if the reader is waiting for a drain event from this
+    // specific writer, then it would cause it to never start
+    // flowing again.
+    // So, if this is awaiting a drain, then we just call it now.
+    // If we don't know, then assume that we are waiting for one.
+    if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
+  }
+
+  // If the user pushes more data while we're writing to dest then we'll end up
+  // in ondata again. However, we only want to increase awaitDrain once because
+  // dest will only emit one 'drain' event for the multiple writes.
+  // => Introduce a guard on increasing awaitDrain.
+  var increasedAwaitDrain = false;
+  src.on('data', ondata);
+  function ondata(chunk) {
+    debug('ondata');
+    increasedAwaitDrain = false;
+    var ret = dest.write(chunk);
+    if (false === ret && !increasedAwaitDrain) {
+      // If the user unpiped during `dest.write()`, it is possible
+      // to get stuck in a permanently paused state if that write
+      // also returned false.
+      // => Check whether `dest` is still a piping destination.
+      if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {
+        debug('false write response, pause', state.awaitDrain);
+        state.awaitDrain++;
+        increasedAwaitDrain = true;
+      }
+      src.pause();
+    }
+  }
+
+  // if the dest has an error, then stop piping into it.
+  // however, don't suppress the throwing behavior for this.
+  function onerror(er) {
+    debug('onerror', er);
+    unpipe();
+    dest.removeListener('error', onerror);
+    if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er);
+  }
+
+  // Make sure our error handler is attached before userland ones.
+  prependListener(dest, 'error', onerror);
+
+  // Both close and finish should trigger unpipe, but only once.
+  function onclose() {
+    dest.removeListener('finish', onfinish);
+    unpipe();
+  }
+  dest.once('close', onclose);
+  function onfinish() {
+    debug('onfinish');
+    dest.removeListener('close', onclose);
+    unpipe();
+  }
+  dest.once('finish', onfinish);
+
+  function unpipe() {
+    debug('unpipe');
+    src.unpipe(dest);
+  }
+
+  // tell the dest that it's being piped to
+  dest.emit('pipe', src);
+
+  // start the flow if it hasn't been started already.
+  if (!state.flowing) {
+    debug('pipe resume');
+    src.resume();
+  }
+
+  return dest;
+};
+
+function pipeOnDrain(src) {
+  return function () {
+    var state = src._readableState;
+    debug('pipeOnDrain', state.awaitDrain);
+    if (state.awaitDrain) state.awaitDrain--;
+    if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {
+      state.flowing = true;
+      flow(src);
+    }
+  };
+}
+
+Readable.prototype.unpipe = function (dest) {
+  var state = this._readableState;
+  var unpipeInfo = { hasUnpiped: false };
+
+  // if we're not piping anywhere, then do nothing.
+  if (state.pipesCount === 0) return this;
+
+  // just one destination.  most common case.
+  if (state.pipesCount === 1) {
+    // passed in one, but it's not the right one.
+    if (dest && dest !== state.pipes) return this;
+
+    if (!dest) dest = state.pipes;
+
+    // got a match.
+    state.pipes = null;
+    state.pipesCount = 0;
+    state.flowing = false;
+    if (dest) dest.emit('unpipe', this, unpipeInfo);
+    return this;
+  }
+
+  // slow case. multiple pipe destinations.
+
+  if (!dest) {
+    // remove all.
+    var dests = state.pipes;
+    var len = state.pipesCount;
+    state.pipes = null;
+    state.pipesCount = 0;
+    state.flowing = false;
+
+    for (var i = 0; i < len; i++) {
+      dests[i].emit('unpipe', this, { hasUnpiped: false });
+    }return this;
+  }
+
+  // try to find the right one.
+  var index = indexOf(state.pipes, dest);
+  if (index === -1) return this;
+
+  state.pipes.splice(index, 1);
+  state.pipesCount -= 1;
+  if (state.pipesCount === 1) state.pipes = state.pipes[0];
+
+  dest.emit('unpipe', this, unpipeInfo);
+
+  return this;
+};
+
+// set up data events if they are asked for
+// Ensure readable listeners eventually get something
+Readable.prototype.on = function (ev, fn) {
+  var res = Stream.prototype.on.call(this, ev, fn);
+
+  if (ev === 'data') {
+    // Start flowing on next tick if stream isn't explicitly paused
+    if (this._readableState.flowing !== false) this.resume();
+  } else if (ev === 'readable') {
+    var state = this._readableState;
+    if (!state.endEmitted && !state.readableListening) {
+      state.readableListening = state.needReadable = true;
+      state.emittedReadable = false;
+      if (!state.reading) {
+        pna.nextTick(nReadingNextTick, this);
+      } else if (state.length) {
+        emitReadable(this);
+      }
+    }
+  }
+
+  return res;
+};
+Readable.prototype.addListener = Readable.prototype.on;
+
+function nReadingNextTick(self) {
+  debug('readable nexttick read 0');
+  self.read(0);
+}
+
+// pause() and resume() are remnants of the legacy readable stream API
+// If the user uses them, then switch into old mode.
+Readable.prototype.resume = function () {
+  var state = this._readableState;
+  if (!state.flowing) {
+    debug('resume');
+    state.flowing = true;
+    resume(this, state);
+  }
+  return this;
+};
+
+function resume(stream, state) {
+  if (!state.resumeScheduled) {
+    state.resumeScheduled = true;
+    pna.nextTick(resume_, stream, state);
+  }
+}
+
+function resume_(stream, state) {
+  if (!state.reading) {
+    debug('resume read 0');
+    stream.read(0);
+  }
+
+  state.resumeScheduled = false;
+  state.awaitDrain = 0;
+  stream.emit('resume');
+  flow(stream);
+  if (state.flowing && !state.reading) stream.read(0);
+}
+
+Readable.prototype.pause = function () {
+  debug('call pause flowing=%j', this._readableState.flowing);
+  if (false !== this._readableState.flowing) {
+    debug('pause');
+    this._readableState.flowing = false;
+    this.emit('pause');
+  }
+  return this;
+};
+
+function flow(stream) {
+  var state = stream._readableState;
+  debug('flow', state.flowing);
+  while (state.flowing && stream.read() !== null) {}
+}
+
+// wrap an old-style stream as the async data source.
+// This is *not* part of the readable stream interface.
+// It is an ugly unfortunate mess of history.
+Readable.prototype.wrap = function (stream) {
+  var _this = this;
+
+  var state = this._readableState;
+  var paused = false;
+
+  stream.on('end', function () {
+    debug('wrapped end');
+    if (state.decoder && !state.ended) {
+      var chunk = state.decoder.end();
+      if (chunk && chunk.length) _this.push(chunk);
+    }
+
+    _this.push(null);
+  });
+
+  stream.on('data', function (chunk) {
+    debug('wrapped data');
+    if (state.decoder) chunk = state.decoder.write(chunk);
+
+    // don't skip over falsy values in objectMode
+    if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;
+
+    var ret = _this.push(chunk);
+    if (!ret) {
+      paused = true;
+      stream.pause();
+    }
+  });
+
+  // proxy all the other methods.
+  // important when wrapping filters and duplexes.
+  for (var i in stream) {
+    if (this[i] === undefined && typeof stream[i] === 'function') {
+      this[i] = function (method) {
+        return function () {
+          return stream[method].apply(stream, arguments);
+        };
+      }(i);
+    }
+  }
+
+  // proxy certain important events.
+  for (var n = 0; n < kProxyEvents.length; n++) {
+    stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n]));
+  }
+
+  // when we try to consume some more bytes, simply unpause the
+  // underlying stream.
+  this._read = function (n) {
+    debug('wrapped _read', n);
+    if (paused) {
+      paused = false;
+      stream.resume();
+    }
+  };
+
+  return this;
+};
+
+Object.defineProperty(Readable.prototype, 'readableHighWaterMark', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function () {
+    return this._readableState.highWaterMark;
+  }
+});
+
+// exposed for testing purposes only.
+Readable._fromList = fromList;
+
+// Pluck off n bytes from an array of buffers.
+// Length is the combined lengths of all the buffers in the list.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function fromList(n, state) {
+  // nothing buffered
+  if (state.length === 0) return null;
+
+  var ret;
+  if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {
+    // read it all, truncate the list
+    if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.head.data;else ret = state.buffer.concat(state.length);
+    state.buffer.clear();
+  } else {
+    // read part of list
+    ret = fromListPartial(n, state.buffer, state.decoder);
+  }
+
+  return ret;
+}
+
+// Extracts only enough buffered data to satisfy the amount requested.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function fromListPartial(n, list, hasStrings) {
+  var ret;
+  if (n < list.head.data.length) {
+    // slice is the same for buffers and strings
+    ret = list.head.data.slice(0, n);
+    list.head.data = list.head.data.slice(n);
+  } else if (n === list.head.data.length) {
+    // first chunk is a perfect match
+    ret = list.shift();
+  } else {
+    // result spans more than one buffer
+    ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list);
+  }
+  return ret;
+}
+
+// Copies a specified amount of characters from the list of buffered data
+// chunks.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function copyFromBufferString(n, list) {
+  var p = list.head;
+  var c = 1;
+  var ret = p.data;
+  n -= ret.length;
+  while (p = p.next) {
+    var str = p.data;
+    var nb = n > str.length ? str.length : n;
+    if (nb === str.length) ret += str;else ret += str.slice(0, n);
+    n -= nb;
+    if (n === 0) {
+      if (nb === str.length) {
+        ++c;
+        if (p.next) list.head = p.next;else list.head = list.tail = null;
+      } else {
+        list.head = p;
+        p.data = str.slice(nb);
+      }
+      break;
+    }
+    ++c;
+  }
+  list.length -= c;
+  return ret;
+}
+
+// Copies a specified amount of bytes from the list of buffered data chunks.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function copyFromBuffer(n, list) {
+  var ret = Buffer.allocUnsafe(n);
+  var p = list.head;
+  var c = 1;
+  p.data.copy(ret);
+  n -= p.data.length;
+  while (p = p.next) {
+    var buf = p.data;
+    var nb = n > buf.length ? buf.length : n;
+    buf.copy(ret, ret.length - n, 0, nb);
+    n -= nb;
+    if (n === 0) {
+      if (nb === buf.length) {
+        ++c;
+        if (p.next) list.head = p.next;else list.head = list.tail = null;
+      } else {
+        list.head = p;
+        p.data = buf.slice(nb);
+      }
+      break;
+    }
+    ++c;
+  }
+  list.length -= c;
+  return ret;
+}
+
+function endReadable(stream) {
+  var state = stream._readableState;
+
+  // If we get here before consuming all the bytes, then that is a
+  // bug in node.  Should never happen.
+  if (state.length > 0) throw new Error('"endReadable()" called on non-empty stream');
+
+  if (!state.endEmitted) {
+    state.ended = true;
+    pna.nextTick(endReadableNT, state, stream);
+  }
+}
+
+function endReadableNT(state, stream) {
+  // Check that we didn't get one last unshift.
+  if (!state.endEmitted && state.length === 0) {
+    state.endEmitted = true;
+    stream.readable = false;
+    stream.emit('end');
+  }
+}
+
+function indexOf(xs, x) {
+  for (var i = 0, l = xs.length; i < l; i++) {
+    if (xs[i] === x) return i;
+  }
+  return -1;
+}
\ No newline at end of file
diff --git a/backend/node_modules/readable-stream/lib/_stream_transform.js b/backend/node_modules/readable-stream/lib/_stream_transform.js
new file mode 100644
index 0000000..fcfc105
--- /dev/null
+++ b/backend/node_modules/readable-stream/lib/_stream_transform.js
@@ -0,0 +1,214 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// a transform stream is a readable/writable stream where you do
+// something with the data.  Sometimes it's called a "filter",
+// but that's not a great name for it, since that implies a thing where
+// some bits pass through, and others are simply ignored.  (That would
+// be a valid example of a transform, of course.)
+//
+// While the output is causally related to the input, it's not a
+// necessarily symmetric or synchronous transformation.  For example,
+// a zlib stream might take multiple plain-text writes(), and then
+// emit a single compressed chunk some time in the future.
+//
+// Here's how this works:
+//
+// The Transform stream has all the aspects of the readable and writable
+// stream classes.  When you write(chunk), that calls _write(chunk,cb)
+// internally, and returns false if there's a lot of pending writes
+// buffered up.  When you call read(), that calls _read(n) until
+// there's enough pending readable data buffered up.
+//
+// In a transform stream, the written data is placed in a buffer.  When
+// _read(n) is called, it transforms the queued up data, calling the
+// buffered _write cb's as it consumes chunks.  If consuming a single
+// written chunk would result in multiple output chunks, then the first
+// outputted bit calls the readcb, and subsequent chunks just go into
+// the read buffer, and will cause it to emit 'readable' if necessary.
+//
+// This way, back-pressure is actually determined by the reading side,
+// since _read has to be called to start processing a new chunk.  However,
+// a pathological inflate type of transform can cause excessive buffering
+// here.  For example, imagine a stream where every byte of input is
+// interpreted as an integer from 0-255, and then results in that many
+// bytes of output.  Writing the 4 bytes {ff,ff,ff,ff} would result in
+// 1kb of data being output.  In this case, you could write a very small
+// amount of input, and end up with a very large amount of output.  In
+// such a pathological inflating mechanism, there'd be no way to tell
+// the system to stop doing the transform.  A single 4MB write could
+// cause the system to run out of memory.
+//
+// However, even in such a pathological case, only a single written chunk
+// would be consumed, and then the rest would wait (un-transformed) until
+// the results of the previous transformed chunk were consumed.
+
+'use strict';
+
+module.exports = Transform;
+
+var Duplex = require('./_stream_duplex');
+
+/*<replacement>*/
+var util = Object.create(require('core-util-is'));
+util.inherits = require('inherits');
+/*</replacement>*/
+
+util.inherits(Transform, Duplex);
+
+function afterTransform(er, data) {
+  var ts = this._transformState;
+  ts.transforming = false;
+
+  var cb = ts.writecb;
+
+  if (!cb) {
+    return this.emit('error', new Error('write callback called multiple times'));
+  }
+
+  ts.writechunk = null;
+  ts.writecb = null;
+
+  if (data != null) // single equals check for both `null` and `undefined`
+    this.push(data);
+
+  cb(er);
+
+  var rs = this._readableState;
+  rs.reading = false;
+  if (rs.needReadable || rs.length < rs.highWaterMark) {
+    this._read(rs.highWaterMark);
+  }
+}
+
+function Transform(options) {
+  if (!(this instanceof Transform)) return new Transform(options);
+
+  Duplex.call(this, options);
+
+  this._transformState = {
+    afterTransform: afterTransform.bind(this),
+    needTransform: false,
+    transforming: false,
+    writecb: null,
+    writechunk: null,
+    writeencoding: null
+  };
+
+  // start out asking for a readable event once data is transformed.
+  this._readableState.needReadable = true;
+
+  // we have implemented the _read method, and done the other things
+  // that Readable wants before the first _read call, so unset the
+  // sync guard flag.
+  this._readableState.sync = false;
+
+  if (options) {
+    if (typeof options.transform === 'function') this._transform = options.transform;
+
+    if (typeof options.flush === 'function') this._flush = options.flush;
+  }
+
+  // When the writable side finishes, then flush out anything remaining.
+  this.on('prefinish', prefinish);
+}
+
+function prefinish() {
+  var _this = this;
+
+  if (typeof this._flush === 'function') {
+    this._flush(function (er, data) {
+      done(_this, er, data);
+    });
+  } else {
+    done(this, null, null);
+  }
+}
+
+Transform.prototype.push = function (chunk, encoding) {
+  this._transformState.needTransform = false;
+  return Duplex.prototype.push.call(this, chunk, encoding);
+};
+
+// This is the part where you do stuff!
+// override this function in implementation classes.
+// 'chunk' is an input chunk.
+//
+// Call `push(newChunk)` to pass along transformed output
+// to the readable side.  You may call 'push' zero or more times.
+//
+// Call `cb(err)` when you are done with this chunk.  If you pass
+// an error, then that'll put the hurt on the whole operation.  If you
+// never call cb(), then you'll never get another chunk.
+Transform.prototype._transform = function (chunk, encoding, cb) {
+  throw new Error('_transform() is not implemented');
+};
+
+Transform.prototype._write = function (chunk, encoding, cb) {
+  var ts = this._transformState;
+  ts.writecb = cb;
+  ts.writechunk = chunk;
+  ts.writeencoding = encoding;
+  if (!ts.transforming) {
+    var rs = this._readableState;
+    if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
+  }
+};
+
+// Doesn't matter what the args are here.
+// _transform does all the work.
+// That we got here means that the readable side wants more data.
+Transform.prototype._read = function (n) {
+  var ts = this._transformState;
+
+  if (ts.writechunk !== null && ts.writecb && !ts.transforming) {
+    ts.transforming = true;
+    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
+  } else {
+    // mark that we need a transform, so that any data that comes in
+    // will get processed, now that we've asked for it.
+    ts.needTransform = true;
+  }
+};
+
+Transform.prototype._destroy = function (err, cb) {
+  var _this2 = this;
+
+  Duplex.prototype._destroy.call(this, err, function (err2) {
+    cb(err2);
+    _this2.emit('close');
+  });
+};
+
+function done(stream, er, data) {
+  if (er) return stream.emit('error', er);
+
+  if (data != null) // single equals check for both `null` and `undefined`
+    stream.push(data);
+
+  // if there's nothing in the write buffer, then that means
+  // that nothing more will ever be provided
+  if (stream._writableState.length) throw new Error('Calling transform done when ws.length != 0');
+
+  if (stream._transformState.transforming) throw new Error('Calling transform done when still transforming');
+
+  return stream.push(null);
+}
\ No newline at end of file
diff --git a/backend/node_modules/readable-stream/lib/_stream_writable.js b/backend/node_modules/readable-stream/lib/_stream_writable.js
new file mode 100644
index 0000000..e1e897f
--- /dev/null
+++ b/backend/node_modules/readable-stream/lib/_stream_writable.js
@@ -0,0 +1,685 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// A bit simpler than readable streams.
+// Implement an async ._write(chunk, encoding, cb), and it'll handle all
+// the drain event emission and buffering.
+
+'use strict';
+
+/*<replacement>*/
+
+var pna = require('process-nextick-args');
+/*</replacement>*/
+
+module.exports = Writable;
+
+/* <replacement> */
+function WriteReq(chunk, encoding, cb) {
+  this.chunk = chunk;
+  this.encoding = encoding;
+  this.callback = cb;
+  this.next = null;
+}
+
+// It seems a linked list but it is not
+// there will be only 2 of these for each stream
+function CorkedRequest(state) {
+  var _this = this;
+
+  this.next = null;
+  this.entry = null;
+  this.finish = function () {
+    onCorkedFinish(_this, state);
+  };
+}
+/* </replacement> */
+
+/*<replacement>*/
+var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : pna.nextTick;
+/*</replacement>*/
+
+/*<replacement>*/
+var Duplex;
+/*</replacement>*/
+
+Writable.WritableState = WritableState;
+
+/*<replacement>*/
+var util = Object.create(require('core-util-is'));
+util.inherits = require('inherits');
+/*</replacement>*/
+
+/*<replacement>*/
+var internalUtil = {
+  deprecate: require('util-deprecate')
+};
+/*</replacement>*/
+
+/*<replacement>*/
+var Stream = require('./internal/streams/stream');
+/*</replacement>*/
+
+/*<replacement>*/
+
+var Buffer = require('safe-buffer').Buffer;
+var OurUint8Array = (typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : typeof self !== 'undefined' ? self : {}).Uint8Array || function () {};
+function _uint8ArrayToBuffer(chunk) {
+  return Buffer.from(chunk);
+}
+function _isUint8Array(obj) {
+  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
+}
+
+/*</replacement>*/
+
+var destroyImpl = require('./internal/streams/destroy');
+
+util.inherits(Writable, Stream);
+
+function nop() {}
+
+function WritableState(options, stream) {
+  Duplex = Duplex || require('./_stream_duplex');
+
+  options = options || {};
+
+  // Duplex streams are both readable and writable, but share
+  // the same options object.
+  // However, some cases require setting options to different
+  // values for the readable and the writable sides of the duplex stream.
+  // These options can be provided separately as readableXXX and writableXXX.
+  var isDuplex = stream instanceof Duplex;
+
+  // object stream flag to indicate whether or not this stream
+  // contains buffers or objects.
+  this.objectMode = !!options.objectMode;
+
+  if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode;
+
+  // the point at which write() starts returning false
+  // Note: 0 is a valid value, means that we always return false if
+  // the entire buffer is not flushed immediately on write()
+  var hwm = options.highWaterMark;
+  var writableHwm = options.writableHighWaterMark;
+  var defaultHwm = this.objectMode ? 16 : 16 * 1024;
+
+  if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (writableHwm || writableHwm === 0)) this.highWaterMark = writableHwm;else this.highWaterMark = defaultHwm;
+
+  // cast to ints.
+  this.highWaterMark = Math.floor(this.highWaterMark);
+
+  // if _final has been called
+  this.finalCalled = false;
+
+  // drain event flag.
+  this.needDrain = false;
+  // at the start of calling end()
+  this.ending = false;
+  // when end() has been called, and returned
+  this.ended = false;
+  // when 'finish' is emitted
+  this.finished = false;
+
+  // has it been destroyed
+  this.destroyed = false;
+
+  // should we decode strings into buffers before passing to _write?
+  // this is here so that some node-core streams can optimize string
+  // handling at a lower level.
+  var noDecode = options.decodeStrings === false;
+  this.decodeStrings = !noDecode;
+
+  // Crypto is kind of old and crusty.  Historically, its default string
+  // encoding is 'binary' so we have to make this configurable.
+  // Everything else in the universe uses 'utf8', though.
+  this.defaultEncoding = options.defaultEncoding || 'utf8';
+
+  // not an actual buffer we keep track of, but a measurement
+  // of how much we're waiting to get pushed to some underlying
+  // socket or file.
+  this.length = 0;
+
+  // a flag to see when we're in the middle of a write.
+  this.writing = false;
+
+  // when true all writes will be buffered until .uncork() call
+  this.corked = 0;
+
+  // a flag to be able to tell if the onwrite cb is called immediately,
+  // or on a later tick.  We set this to true at first, because any
+  // actions that shouldn't happen until "later" should generally also
+  // not happen before the first write call.
+  this.sync = true;
+
+  // a flag to know if we're processing previously buffered items, which
+  // may call the _write() callback in the same tick, so that we don't
+  // end up in an overlapped onwrite situation.
+  this.bufferProcessing = false;
+
+  // the callback that's passed to _write(chunk,cb)
+  this.onwrite = function (er) {
+    onwrite(stream, er);
+  };
+
+  // the callback that the user supplies to write(chunk,encoding,cb)
+  this.writecb = null;
+
+  // the amount that is being written when _write is called.
+  this.writelen = 0;
+
+  this.bufferedRequest = null;
+  this.lastBufferedRequest = null;
+
+  // number of pending user-supplied write callbacks
+  // this must be 0 before 'finish' can be emitted
+  this.pendingcb = 0;
+
+  // emit prefinish if the only thing we're waiting for is _write cbs
+  // This is relevant for synchronous Transform streams
+  this.prefinished = false;
+
+  // True if the error was already emitted and should not be thrown again
+  this.errorEmitted = false;
+
+  // count buffered requests
+  this.bufferedRequestCount = 0;
+
+  // allocate the first CorkedRequest, there is always
+  // one allocated and free to use, and we maintain at most two
+  this.corkedRequestsFree = new CorkedRequest(this);
+}
+
+WritableState.prototype.getBuffer = function getBuffer() {
+  var current = this.bufferedRequest;
+  var out = [];
+  while (current) {
+    out.push(current);
+    current = current.next;
+  }
+  return out;
+};
+
+(function () {
+  try {
+    Object.defineProperty(WritableState.prototype, 'buffer', {
+      get: internalUtil.deprecate(function () {
+        return this.getBuffer();
+      }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')
+    });
+  } catch (_) {}
+})();
+
+// Test _writableState for inheritance to account for Duplex streams,
+// whose prototype chain only points to Readable.
+var realHasInstance;
+if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {
+  realHasInstance = Function.prototype[Symbol.hasInstance];
+  Object.defineProperty(Writable, Symbol.hasInstance, {
+    value: function (object) {
+      if (realHasInstance.call(this, object)) return true;
+      if (this !== Writable) return false;
+
+      return object && object._writableState instanceof WritableState;
+    }
+  });
+} else {
+  realHasInstance = function (object) {
+    return object instanceof this;
+  };
+}
+
+function Writable(options) {
+  Duplex = Duplex || require('./_stream_duplex');
+
+  // Writable ctor is applied to Duplexes, too.
+  // `realHasInstance` is necessary because using plain `instanceof`
+  // would return false, as no `_writableState` property is attached.
+
+  // Trying to use the custom `instanceof` for Writable here will also break the
+  // Node.js LazyTransform implementation, which has a non-trivial getter for
+  // `_writableState` that would lead to infinite recursion.
+  if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) {
+    return new Writable(options);
+  }
+
+  this._writableState = new WritableState(options, this);
+
+  // legacy.
+  this.writable = true;
+
+  if (options) {
+    if (typeof options.write === 'function') this._write = options.write;
+
+    if (typeof options.writev === 'function') this._writev = options.writev;
+
+    if (typeof options.destroy === 'function') this._destroy = options.destroy;
+
+    if (typeof options.final === 'function') this._final = options.final;
+  }
+
+  Stream.call(this);
+}
+
+// Otherwise people can pipe Writable streams, which is just wrong.
+Writable.prototype.pipe = function () {
+  this.emit('error', new Error('Cannot pipe, not readable'));
+};
+
+function writeAfterEnd(stream, cb) {
+  var er = new Error('write after end');
+  // TODO: defer error events consistently everywhere, not just the cb
+  stream.emit('error', er);
+  pna.nextTick(cb, er);
+}
+
+// Checks that a user-supplied chunk is valid, especially for the particular
+// mode the stream is in. Currently this means that `null` is never accepted
+// and undefined/non-string values are only allowed in object mode.
+function validChunk(stream, state, chunk, cb) {
+  var valid = true;
+  var er = false;
+
+  if (chunk === null) {
+    er = new TypeError('May not write null values to stream');
+  } else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
+    er = new TypeError('Invalid non-string/buffer chunk');
+  }
+  if (er) {
+    stream.emit('error', er);
+    pna.nextTick(cb, er);
+    valid = false;
+  }
+  return valid;
+}
+
+Writable.prototype.write = function (chunk, encoding, cb) {
+  var state = this._writableState;
+  var ret = false;
+  var isBuf = !state.objectMode && _isUint8Array(chunk);
+
+  if (isBuf && !Buffer.isBuffer(chunk)) {
+    chunk = _uint8ArrayToBuffer(chunk);
+  }
+
+  if (typeof encoding === 'function') {
+    cb = encoding;
+    encoding = null;
+  }
+
+  if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
+
+  if (typeof cb !== 'function') cb = nop;
+
+  if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {
+    state.pendingcb++;
+    ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);
+  }
+
+  return ret;
+};
+
+Writable.prototype.cork = function () {
+  var state = this._writableState;
+
+  state.corked++;
+};
+
+Writable.prototype.uncork = function () {
+  var state = this._writableState;
+
+  if (state.corked) {
+    state.corked--;
+
+    if (!state.writing && !state.corked && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
+  }
+};
+
+Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
+  // node::ParseEncoding() requires lower case.
+  if (typeof encoding === 'string') encoding = encoding.toLowerCase();
+  if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding);
+  this._writableState.defaultEncoding = encoding;
+  return this;
+};
+
+function decodeChunk(state, chunk, encoding) {
+  if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
+    chunk = Buffer.from(chunk, encoding);
+  }
+  return chunk;
+}
+
+Object.defineProperty(Writable.prototype, 'writableHighWaterMark', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function () {
+    return this._writableState.highWaterMark;
+  }
+});
+
+// if we're already writing something, then just put this
+// in the queue, and wait our turn.  Otherwise, call _write
+// If we return false, then we need a drain event, so set that flag.
+function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
+  if (!isBuf) {
+    var newChunk = decodeChunk(state, chunk, encoding);
+    if (chunk !== newChunk) {
+      isBuf = true;
+      encoding = 'buffer';
+      chunk = newChunk;
+    }
+  }
+  var len = state.objectMode ? 1 : chunk.length;
+
+  state.length += len;
+
+  var ret = state.length < state.highWaterMark;
+  // we must ensure that previous needDrain will not be reset to false.
+  if (!ret) state.needDrain = true;
+
+  if (state.writing || state.corked) {
+    var last = state.lastBufferedRequest;
+    state.lastBufferedRequest = {
+      chunk: chunk,
+      encoding: encoding,
+      isBuf: isBuf,
+      callback: cb,
+      next: null
+    };
+    if (last) {
+      last.next = state.lastBufferedRequest;
+    } else {
+      state.bufferedRequest = state.lastBufferedRequest;
+    }
+    state.bufferedRequestCount += 1;
+  } else {
+    doWrite(stream, state, false, len, chunk, encoding, cb);
+  }
+
+  return ret;
+}
+
+function doWrite(stream, state, writev, len, chunk, encoding, cb) {
+  state.writelen = len;
+  state.writecb = cb;
+  state.writing = true;
+  state.sync = true;
+  if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
+  state.sync = false;
+}
+
+function onwriteError(stream, state, sync, er, cb) {
+  --state.pendingcb;
+
+  if (sync) {
+    // defer the callback if we are being called synchronously
+    // to avoid piling up things on the stack
+    pna.nextTick(cb, er);
+    // this can emit finish, and it will always happen
+    // after error
+    pna.nextTick(finishMaybe, stream, state);
+    stream._writableState.errorEmitted = true;
+    stream.emit('error', er);
+  } else {
+    // the caller expect this to happen before if
+    // it is async
+    cb(er);
+    stream._writableState.errorEmitted = true;
+    stream.emit('error', er);
+    // this can emit finish, but finish must
+    // always follow error
+    finishMaybe(stream, state);
+  }
+}
+
+function onwriteStateUpdate(state) {
+  state.writing = false;
+  state.writecb = null;
+  state.length -= state.writelen;
+  state.writelen = 0;
+}
+
+function onwrite(stream, er) {
+  var state = stream._writableState;
+  var sync = state.sync;
+  var cb = state.writecb;
+
+  onwriteStateUpdate(state);
+
+  if (er) onwriteError(stream, state, sync, er, cb);else {
+    // Check if we're actually ready to finish, but don't emit yet
+    var finished = needFinish(state);
+
+    if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
+      clearBuffer(stream, state);
+    }
+
+    if (sync) {
+      /*<replacement>*/
+      asyncWrite(afterWrite, stream, state, finished, cb);
+      /*</replacement>*/
+    } else {
+      afterWrite(stream, state, finished, cb);
+    }
+  }
+}
+
+function afterWrite(stream, state, finished, cb) {
+  if (!finished) onwriteDrain(stream, state);
+  state.pendingcb--;
+  cb();
+  finishMaybe(stream, state);
+}
+
+// Must force callback to be called on nextTick, so that we don't
+// emit 'drain' before the write() consumer gets the 'false' return
+// value, and has a chance to attach a 'drain' listener.
+function onwriteDrain(stream, state) {
+  if (state.length === 0 && state.needDrain) {
+    state.needDrain = false;
+    stream.emit('drain');
+  }
+}
+
+// if there's something in the buffer waiting, then process it
+function clearBuffer(stream, state) {
+  state.bufferProcessing = true;
+  var entry = state.bufferedRequest;
+
+  if (stream._writev && entry && entry.next) {
+    // Fast case, write everything using _writev()
+    var l = state.bufferedRequestCount;
+    var buffer = new Array(l);
+    var holder = state.corkedRequestsFree;
+    holder.entry = entry;
+
+    var count = 0;
+    var allBuffers = true;
+    while (entry) {
+      buffer[count] = entry;
+      if (!entry.isBuf) allBuffers = false;
+      entry = entry.next;
+      count += 1;
+    }
+    buffer.allBuffers = allBuffers;
+
+    doWrite(stream, state, true, state.length, buffer, '', holder.finish);
+
+    // doWrite is almost always async, defer these to save a bit of time
+    // as the hot path ends with doWrite
+    state.pendingcb++;
+    state.lastBufferedRequest = null;
+    if (holder.next) {
+      state.corkedRequestsFree = holder.next;
+      holder.next = null;
+    } else {
+      state.corkedRequestsFree = new CorkedRequest(state);
+    }
+    state.bufferedRequestCount = 0;
+  } else {
+    // Slow case, write chunks one-by-one
+    while (entry) {
+      var chunk = entry.chunk;
+      var encoding = entry.encoding;
+      var cb = entry.callback;
+      var len = state.objectMode ? 1 : chunk.length;
+
+      doWrite(stream, state, false, len, chunk, encoding, cb);
+      entry = entry.next;
+      state.bufferedRequestCount--;
+      // if we didn't call the onwrite immediately, then
+      // it means that we need to wait until it does.
+      // also, that means that the chunk and cb are currently
+      // being processed, so move the buffer counter past them.
+      if (state.writing) {
+        break;
+      }
+    }
+
+    if (entry === null) state.lastBufferedRequest = null;
+  }
+
+  state.bufferedRequest = entry;
+  state.bufferProcessing = false;
+}
+
+Writable.prototype._write = function (chunk, encoding, cb) {
+  cb(new Error('_write() is not implemented'));
+};
+
+Writable.prototype._writev = null;
+
+Writable.prototype.end = function (chunk, encoding, cb) {
+  var state = this._writableState;
+
+  if (typeof chunk === 'function') {
+    cb = chunk;
+    chunk = null;
+    encoding = null;
+  } else if (typeof encoding === 'function') {
+    cb = encoding;
+    encoding = null;
+  }
+
+  if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);
+
+  // .end() fully uncorks
+  if (state.corked) {
+    state.corked = 1;
+    this.uncork();
+  }
+
+  // ignore unnecessary end() calls.
+  if (!state.ending) endWritable(this, state, cb);
+};
+
+function needFinish(state) {
+  return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
+}
+function callFinal(stream, state) {
+  stream._final(function (err) {
+    state.pendingcb--;
+    if (err) {
+      stream.emit('error', err);
+    }
+    state.prefinished = true;
+    stream.emit('prefinish');
+    finishMaybe(stream, state);
+  });
+}
+function prefinish(stream, state) {
+  if (!state.prefinished && !state.finalCalled) {
+    if (typeof stream._final === 'function') {
+      state.pendingcb++;
+      state.finalCalled = true;
+      pna.nextTick(callFinal, stream, state);
+    } else {
+      state.prefinished = true;
+      stream.emit('prefinish');
+    }
+  }
+}
+
+function finishMaybe(stream, state) {
+  var need = needFinish(state);
+  if (need) {
+    prefinish(stream, state);
+    if (state.pendingcb === 0) {
+      state.finished = true;
+      stream.emit('finish');
+    }
+  }
+  return need;
+}
+
+function endWritable(stream, state, cb) {
+  state.ending = true;
+  finishMaybe(stream, state);
+  if (cb) {
+    if (state.finished) pna.nextTick(cb);else stream.once('finish', cb);
+  }
+  state.ended = true;
+  stream.writable = false;
+}
+
+function onCorkedFinish(corkReq, state, err) {
+  var entry = corkReq.entry;
+  corkReq.entry = null;
+  while (entry) {
+    var cb = entry.callback;
+    state.pendingcb--;
+    cb(err);
+    entry = entry.next;
+  }
+
+  // reuse the free corkReq.
+  state.corkedRequestsFree.next = corkReq;
+}
+
+Object.defineProperty(Writable.prototype, 'destroyed', {
+  get: function () {
+    if (this._writableState === undefined) {
+      return false;
+    }
+    return this._writableState.destroyed;
+  },
+  set: function (value) {
+    // we ignore the value if the stream
+    // has not been initialized yet
+    if (!this._writableState) {
+      return;
+    }
+
+    // backward compatibility, the user is explicitly
+    // managing destroyed
+    this._writableState.destroyed = value;
+  }
+});
+
+Writable.prototype.destroy = destroyImpl.destroy;
+Writable.prototype._undestroy = destroyImpl.undestroy;
+Writable.prototype._destroy = function (err, cb) {
+  this.end();
+  cb(err);
+};
\ No newline at end of file
diff --git a/backend/node_modules/readable-stream/lib/internal/streams/BufferList.js b/backend/node_modules/readable-stream/lib/internal/streams/BufferList.js
new file mode 100644
index 0000000..5e08097
--- /dev/null
+++ b/backend/node_modules/readable-stream/lib/internal/streams/BufferList.js
@@ -0,0 +1,78 @@
+'use strict';
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var Buffer = require('safe-buffer').Buffer;
+var util = require('util');
+
+function copyBuffer(src, target, offset) {
+  src.copy(target, offset);
+}
+
+module.exports = function () {
+  function BufferList() {
+    _classCallCheck(this, BufferList);
+
+    this.head = null;
+    this.tail = null;
+    this.length = 0;
+  }
+
+  BufferList.prototype.push = function push(v) {
+    var entry = { data: v, next: null };
+    if (this.length > 0) this.tail.next = entry;else this.head = entry;
+    this.tail = entry;
+    ++this.length;
+  };
+
+  BufferList.prototype.unshift = function unshift(v) {
+    var entry = { data: v, next: this.head };
+    if (this.length === 0) this.tail = entry;
+    this.head = entry;
+    ++this.length;
+  };
+
+  BufferList.prototype.shift = function shift() {
+    if (this.length === 0) return;
+    var ret = this.head.data;
+    if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
+    --this.length;
+    return ret;
+  };
+
+  BufferList.prototype.clear = function clear() {
+    this.head = this.tail = null;
+    this.length = 0;
+  };
+
+  BufferList.prototype.join = function join(s) {
+    if (this.length === 0) return '';
+    var p = this.head;
+    var ret = '' + p.data;
+    while (p = p.next) {
+      ret += s + p.data;
+    }return ret;
+  };
+
+  BufferList.prototype.concat = function concat(n) {
+    if (this.length === 0) return Buffer.alloc(0);
+    var ret = Buffer.allocUnsafe(n >>> 0);
+    var p = this.head;
+    var i = 0;
+    while (p) {
+      copyBuffer(p.data, ret, i);
+      i += p.data.length;
+      p = p.next;
+    }
+    return ret;
+  };
+
+  return BufferList;
+}();
+
+if (util && util.inspect && util.inspect.custom) {
+  module.exports.prototype[util.inspect.custom] = function () {
+    var obj = util.inspect({ length: this.length });
+    return this.constructor.name + ' ' + obj;
+  };
+}
\ No newline at end of file
diff --git a/backend/node_modules/readable-stream/lib/internal/streams/destroy.js b/backend/node_modules/readable-stream/lib/internal/streams/destroy.js
new file mode 100644
index 0000000..85a8214
--- /dev/null
+++ b/backend/node_modules/readable-stream/lib/internal/streams/destroy.js
@@ -0,0 +1,84 @@
+'use strict';
+
+/*<replacement>*/
+
+var pna = require('process-nextick-args');
+/*</replacement>*/
+
+// undocumented cb() API, needed for core, not for public API
+function destroy(err, cb) {
+  var _this = this;
+
+  var readableDestroyed = this._readableState && this._readableState.destroyed;
+  var writableDestroyed = this._writableState && this._writableState.destroyed;
+
+  if (readableDestroyed || writableDestroyed) {
+    if (cb) {
+      cb(err);
+    } else if (err) {
+      if (!this._writableState) {
+        pna.nextTick(emitErrorNT, this, err);
+      } else if (!this._writableState.errorEmitted) {
+        this._writableState.errorEmitted = true;
+        pna.nextTick(emitErrorNT, this, err);
+      }
+    }
+
+    return this;
+  }
+
+  // we set destroyed to true before firing error callbacks in order
+  // to make it re-entrance safe in case destroy() is called within callbacks
+
+  if (this._readableState) {
+    this._readableState.destroyed = true;
+  }
+
+  // if this is a duplex stream mark the writable part as destroyed as well
+  if (this._writableState) {
+    this._writableState.destroyed = true;
+  }
+
+  this._destroy(err || null, function (err) {
+    if (!cb && err) {
+      if (!_this._writableState) {
+        pna.nextTick(emitErrorNT, _this, err);
+      } else if (!_this._writableState.errorEmitted) {
+        _this._writableState.errorEmitted = true;
+        pna.nextTick(emitErrorNT, _this, err);
+      }
+    } else if (cb) {
+      cb(err);
+    }
+  });
+
+  return this;
+}
+
+function undestroy() {
+  if (this._readableState) {
+    this._readableState.destroyed = false;
+    this._readableState.reading = false;
+    this._readableState.ended = false;
+    this._readableState.endEmitted = false;
+  }
+
+  if (this._writableState) {
+    this._writableState.destroyed = false;
+    this._writableState.ended = false;
+    this._writableState.ending = false;
+    this._writableState.finalCalled = false;
+    this._writableState.prefinished = false;
+    this._writableState.finished = false;
+    this._writableState.errorEmitted = false;
+  }
+}
+
+function emitErrorNT(self, err) {
+  self.emit('error', err);
+}
+
+module.exports = {
+  destroy: destroy,
+  undestroy: undestroy
+};
\ No newline at end of file
diff --git a/backend/node_modules/readable-stream/lib/internal/streams/stream-browser.js b/backend/node_modules/readable-stream/lib/internal/streams/stream-browser.js
new file mode 100644
index 0000000..9332a3f
--- /dev/null
+++ b/backend/node_modules/readable-stream/lib/internal/streams/stream-browser.js
@@ -0,0 +1 @@
+module.exports = require('events').EventEmitter;
diff --git a/backend/node_modules/readable-stream/lib/internal/streams/stream.js b/backend/node_modules/readable-stream/lib/internal/streams/stream.js
new file mode 100644
index 0000000..ce2ad5b
--- /dev/null
+++ b/backend/node_modules/readable-stream/lib/internal/streams/stream.js
@@ -0,0 +1 @@
+module.exports = require('stream');
diff --git a/backend/node_modules/readable-stream/node_modules/safe-buffer/LICENSE b/backend/node_modules/readable-stream/node_modules/safe-buffer/LICENSE
new file mode 100644
index 0000000..0c068ce
--- /dev/null
+++ b/backend/node_modules/readable-stream/node_modules/safe-buffer/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Feross Aboukhadijeh
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/readable-stream/node_modules/safe-buffer/README.md b/backend/node_modules/readable-stream/node_modules/safe-buffer/README.md
new file mode 100644
index 0000000..e9a81af
--- /dev/null
+++ b/backend/node_modules/readable-stream/node_modules/safe-buffer/README.md
@@ -0,0 +1,584 @@
+# safe-buffer [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][downloads-url] [![javascript style guide][standard-image]][standard-url]
+
+[travis-image]: https://img.shields.io/travis/feross/safe-buffer/master.svg
+[travis-url]: https://travis-ci.org/feross/safe-buffer
+[npm-image]: https://img.shields.io/npm/v/safe-buffer.svg
+[npm-url]: https://npmjs.org/package/safe-buffer
+[downloads-image]: https://img.shields.io/npm/dm/safe-buffer.svg
+[downloads-url]: https://npmjs.org/package/safe-buffer
+[standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg
+[standard-url]: https://standardjs.com
+
+#### Safer Node.js Buffer API
+
+**Use the new Node.js Buffer APIs (`Buffer.from`, `Buffer.alloc`,
+`Buffer.allocUnsafe`, `Buffer.allocUnsafeSlow`) in all versions of Node.js.**
+
+**Uses the built-in implementation when available.**
+
+## install
+
+```
+npm install safe-buffer
+```
+
+## usage
+
+The goal of this package is to provide a safe replacement for the node.js `Buffer`.
+
+It's a drop-in replacement for `Buffer`. You can use it by adding one `require` line to
+the top of your node.js modules:
+
+```js
+var Buffer = require('safe-buffer').Buffer
+
+// Existing buffer code will continue to work without issues:
+
+new Buffer('hey', 'utf8')
+new Buffer([1, 2, 3], 'utf8')
+new Buffer(obj)
+new Buffer(16) // create an uninitialized buffer (potentially unsafe)
+
+// But you can use these new explicit APIs to make clear what you want:
+
+Buffer.from('hey', 'utf8') // convert from many types to a Buffer
+Buffer.alloc(16) // create a zero-filled buffer (safe)
+Buffer.allocUnsafe(16) // create an uninitialized buffer (potentially unsafe)
+```
+
+## api
+
+### Class Method: Buffer.from(array)
+<!-- YAML
+added: v3.0.0
+-->
+
+* `array` {Array}
+
+Allocates a new `Buffer` using an `array` of octets.
+
+```js
+const buf = Buffer.from([0x62,0x75,0x66,0x66,0x65,0x72]);
+  // creates a new Buffer containing ASCII bytes
+  // ['b','u','f','f','e','r']
+```
+
+A `TypeError` will be thrown if `array` is not an `Array`.
+
+### Class Method: Buffer.from(arrayBuffer[, byteOffset[, length]])
+<!-- YAML
+added: v5.10.0
+-->
+
+* `arrayBuffer` {ArrayBuffer} The `.buffer` property of a `TypedArray` or
+  a `new ArrayBuffer()`
+* `byteOffset` {Number} Default: `0`
+* `length` {Number} Default: `arrayBuffer.length - byteOffset`
+
+When passed a reference to the `.buffer` property of a `TypedArray` instance,
+the newly created `Buffer` will share the same allocated memory as the
+TypedArray.
+
+```js
+const arr = new Uint16Array(2);
+arr[0] = 5000;
+arr[1] = 4000;
+
+const buf = Buffer.from(arr.buffer); // shares the memory with arr;
+
+console.log(buf);
+  // Prints: <Buffer 88 13 a0 0f>
+
+// changing the TypedArray changes the Buffer also
+arr[1] = 6000;
+
+console.log(buf);
+  // Prints: <Buffer 88 13 70 17>
+```
+
+The optional `byteOffset` and `length` arguments specify a memory range within
+the `arrayBuffer` that will be shared by the `Buffer`.
+
+```js
+const ab = new ArrayBuffer(10);
+const buf = Buffer.from(ab, 0, 2);
+console.log(buf.length);
+  // Prints: 2
+```
+
+A `TypeError` will be thrown if `arrayBuffer` is not an `ArrayBuffer`.
+
+### Class Method: Buffer.from(buffer)
+<!-- YAML
+added: v3.0.0
+-->
+
+* `buffer` {Buffer}
+
+Copies the passed `buffer` data onto a new `Buffer` instance.
+
+```js
+const buf1 = Buffer.from('buffer');
+const buf2 = Buffer.from(buf1);
+
+buf1[0] = 0x61;
+console.log(buf1.toString());
+  // 'auffer'
+console.log(buf2.toString());
+  // 'buffer' (copy is not changed)
+```
+
+A `TypeError` will be thrown if `buffer` is not a `Buffer`.
+
+### Class Method: Buffer.from(str[, encoding])
+<!-- YAML
+added: v5.10.0
+-->
+
+* `str` {String} String to encode.
+* `encoding` {String} Encoding to use, Default: `'utf8'`
+
+Creates a new `Buffer` containing the given JavaScript string `str`. If
+provided, the `encoding` parameter identifies the character encoding.
+If not provided, `encoding` defaults to `'utf8'`.
+
+```js
+const buf1 = Buffer.from('this is a tést');
+console.log(buf1.toString());
+  // prints: this is a tést
+console.log(buf1.toString('ascii'));
+  // prints: this is a tC)st
+
+const buf2 = Buffer.from('7468697320697320612074c3a97374', 'hex');
+console.log(buf2.toString());
+  // prints: this is a tést
+```
+
+A `TypeError` will be thrown if `str` is not a string.
+
+### Class Method: Buffer.alloc(size[, fill[, encoding]])
+<!-- YAML
+added: v5.10.0
+-->
+
+* `size` {Number}
+* `fill` {Value} Default: `undefined`
+* `encoding` {String} Default: `utf8`
+
+Allocates a new `Buffer` of `size` bytes. If `fill` is `undefined`, the
+`Buffer` will be *zero-filled*.
+
+```js
+const buf = Buffer.alloc(5);
+console.log(buf);
+  // <Buffer 00 00 00 00 00>
+```
+
+The `size` must be less than or equal to the value of
+`require('buffer').kMaxLength` (on 64-bit architectures, `kMaxLength` is
+`(2^31)-1`). Otherwise, a [`RangeError`][] is thrown. A zero-length Buffer will
+be created if a `size` less than or equal to 0 is specified.
+
+If `fill` is specified, the allocated `Buffer` will be initialized by calling
+`buf.fill(fill)`. See [`buf.fill()`][] for more information.
+
+```js
+const buf = Buffer.alloc(5, 'a');
+console.log(buf);
+  // <Buffer 61 61 61 61 61>
+```
+
+If both `fill` and `encoding` are specified, the allocated `Buffer` will be
+initialized by calling `buf.fill(fill, encoding)`. For example:
+
+```js
+const buf = Buffer.alloc(11, 'aGVsbG8gd29ybGQ=', 'base64');
+console.log(buf);
+  // <Buffer 68 65 6c 6c 6f 20 77 6f 72 6c 64>
+```
+
+Calling `Buffer.alloc(size)` can be significantly slower than the alternative
+`Buffer.allocUnsafe(size)` but ensures that the newly created `Buffer` instance
+contents will *never contain sensitive data*.
+
+A `TypeError` will be thrown if `size` is not a number.
+
+### Class Method: Buffer.allocUnsafe(size)
+<!-- YAML
+added: v5.10.0
+-->
+
+* `size` {Number}
+
+Allocates a new *non-zero-filled* `Buffer` of `size` bytes.  The `size` must
+be less than or equal to the value of `require('buffer').kMaxLength` (on 64-bit
+architectures, `kMaxLength` is `(2^31)-1`). Otherwise, a [`RangeError`][] is
+thrown. A zero-length Buffer will be created if a `size` less than or equal to
+0 is specified.
+
+The underlying memory for `Buffer` instances created in this way is *not
+initialized*. The contents of the newly created `Buffer` are unknown and
+*may contain sensitive data*. Use [`buf.fill(0)`][] to initialize such
+`Buffer` instances to zeroes.
+
+```js
+const buf = Buffer.allocUnsafe(5);
+console.log(buf);
+  // <Buffer 78 e0 82 02 01>
+  // (octets will be different, every time)
+buf.fill(0);
+console.log(buf);
+  // <Buffer 00 00 00 00 00>
+```
+
+A `TypeError` will be thrown if `size` is not a number.
+
+Note that the `Buffer` module pre-allocates an internal `Buffer` instance of
+size `Buffer.poolSize` that is used as a pool for the fast allocation of new
+`Buffer` instances created using `Buffer.allocUnsafe(size)` (and the deprecated
+`new Buffer(size)` constructor) only when `size` is less than or equal to
+`Buffer.poolSize >> 1` (floor of `Buffer.poolSize` divided by two). The default
+value of `Buffer.poolSize` is `8192` but can be modified.
+
+Use of this pre-allocated internal memory pool is a key difference between
+calling `Buffer.alloc(size, fill)` vs. `Buffer.allocUnsafe(size).fill(fill)`.
+Specifically, `Buffer.alloc(size, fill)` will *never* use the internal Buffer
+pool, while `Buffer.allocUnsafe(size).fill(fill)` *will* use the internal
+Buffer pool if `size` is less than or equal to half `Buffer.poolSize`. The
+difference is subtle but can be important when an application requires the
+additional performance that `Buffer.allocUnsafe(size)` provides.
+
+### Class Method: Buffer.allocUnsafeSlow(size)
+<!-- YAML
+added: v5.10.0
+-->
+
+* `size` {Number}
+
+Allocates a new *non-zero-filled* and non-pooled `Buffer` of `size` bytes.  The
+`size` must be less than or equal to the value of
+`require('buffer').kMaxLength` (on 64-bit architectures, `kMaxLength` is
+`(2^31)-1`). Otherwise, a [`RangeError`][] is thrown. A zero-length Buffer will
+be created if a `size` less than or equal to 0 is specified.
+
+The underlying memory for `Buffer` instances created in this way is *not
+initialized*. The contents of the newly created `Buffer` are unknown and
+*may contain sensitive data*. Use [`buf.fill(0)`][] to initialize such
+`Buffer` instances to zeroes.
+
+When using `Buffer.allocUnsafe()` to allocate new `Buffer` instances,
+allocations under 4KB are, by default, sliced from a single pre-allocated
+`Buffer`. This allows applications to avoid the garbage collection overhead of
+creating many individually allocated Buffers. This approach improves both
+performance and memory usage by eliminating the need to track and cleanup as
+many `Persistent` objects.
+
+However, in the case where a developer may need to retain a small chunk of
+memory from a pool for an indeterminate amount of time, it may be appropriate
+to create an un-pooled Buffer instance using `Buffer.allocUnsafeSlow()` then
+copy out the relevant bits.
+
+```js
+// need to keep around a few small chunks of memory
+const store = [];
+
+socket.on('readable', () => {
+  const data = socket.read();
+  // allocate for retained data
+  const sb = Buffer.allocUnsafeSlow(10);
+  // copy the data into the new allocation
+  data.copy(sb, 0, 0, 10);
+  store.push(sb);
+});
+```
+
+Use of `Buffer.allocUnsafeSlow()` should be used only as a last resort *after*
+a developer has observed undue memory retention in their applications.
+
+A `TypeError` will be thrown if `size` is not a number.
+
+### All the Rest
+
+The rest of the `Buffer` API is exactly the same as in node.js.
+[See the docs](https://nodejs.org/api/buffer.html).
+
+
+## Related links
+
+- [Node.js issue: Buffer(number) is unsafe](https://github.com/nodejs/node/issues/4660)
+- [Node.js Enhancement Proposal: Buffer.from/Buffer.alloc/Buffer.zalloc/Buffer() soft-deprecate](https://github.com/nodejs/node-eps/pull/4)
+
+## Why is `Buffer` unsafe?
+
+Today, the node.js `Buffer` constructor is overloaded to handle many different argument
+types like `String`, `Array`, `Object`, `TypedArrayView` (`Uint8Array`, etc.),
+`ArrayBuffer`, and also `Number`.
+
+The API is optimized for convenience: you can throw any type at it, and it will try to do
+what you want.
+
+Because the Buffer constructor is so powerful, you often see code like this:
+
+```js
+// Convert UTF-8 strings to hex
+function toHex (str) {
+  return new Buffer(str).toString('hex')
+}
+```
+
+***But what happens if `toHex` is called with a `Number` argument?***
+
+### Remote Memory Disclosure
+
+If an attacker can make your program call the `Buffer` constructor with a `Number`
+argument, then they can make it allocate uninitialized memory from the node.js process.
+This could potentially disclose TLS private keys, user data, or database passwords.
+
+When the `Buffer` constructor is passed a `Number` argument, it returns an
+**UNINITIALIZED** block of memory of the specified `size`. When you create a `Buffer` like
+this, you **MUST** overwrite the contents before returning it to the user.
+
+From the [node.js docs](https://nodejs.org/api/buffer.html#buffer_new_buffer_size):
+
+> `new Buffer(size)`
+>
+> - `size` Number
+>
+> The underlying memory for `Buffer` instances created in this way is not initialized.
+> **The contents of a newly created `Buffer` are unknown and could contain sensitive
+> data.** Use `buf.fill(0)` to initialize a Buffer to zeroes.
+
+(Emphasis our own.)
+
+Whenever the programmer intended to create an uninitialized `Buffer` you often see code
+like this:
+
+```js
+var buf = new Buffer(16)
+
+// Immediately overwrite the uninitialized buffer with data from another buffer
+for (var i = 0; i < buf.length; i++) {
+  buf[i] = otherBuf[i]
+}
+```
+
+
+### Would this ever be a problem in real code?
+
+Yes. It's surprisingly common to forget to check the type of your variables in a
+dynamically-typed language like JavaScript.
+
+Usually the consequences of assuming the wrong type is that your program crashes with an
+uncaught exception. But the failure mode for forgetting to check the type of arguments to
+the `Buffer` constructor is more catastrophic.
+
+Here's an example of a vulnerable service that takes a JSON payload and converts it to
+hex:
+
+```js
+// Take a JSON payload {str: "some string"} and convert it to hex
+var server = http.createServer(function (req, res) {
+  var data = ''
+  req.setEncoding('utf8')
+  req.on('data', function (chunk) {
+    data += chunk
+  })
+  req.on('end', function () {
+    var body = JSON.parse(data)
+    res.end(new Buffer(body.str).toString('hex'))
+  })
+})
+
+server.listen(8080)
+```
+
+In this example, an http client just has to send:
+
+```json
+{
+  "str": 1000
+}
+```
+
+and it will get back 1,000 bytes of uninitialized memory from the server.
+
+This is a very serious bug. It's similar in severity to the
+[the Heartbleed bug](http://heartbleed.com/) that allowed disclosure of OpenSSL process
+memory by remote attackers.
+
+
+### Which real-world packages were vulnerable?
+
+#### [`bittorrent-dht`](https://www.npmjs.com/package/bittorrent-dht)
+
+[Mathias Buus](https://github.com/mafintosh) and I
+([Feross Aboukhadijeh](http://feross.org/)) found this issue in one of our own packages,
+[`bittorrent-dht`](https://www.npmjs.com/package/bittorrent-dht). The bug would allow
+anyone on the internet to send a series of messages to a user of `bittorrent-dht` and get
+them to reveal 20 bytes at a time of uninitialized memory from the node.js process.
+
+Here's
+[the commit](https://github.com/feross/bittorrent-dht/commit/6c7da04025d5633699800a99ec3fbadf70ad35b8)
+that fixed it. We released a new fixed version, created a
+[Node Security Project disclosure](https://nodesecurity.io/advisories/68), and deprecated all
+vulnerable versions on npm so users will get a warning to upgrade to a newer version.
+
+#### [`ws`](https://www.npmjs.com/package/ws)
+
+That got us wondering if there were other vulnerable packages. Sure enough, within a short
+period of time, we found the same issue in [`ws`](https://www.npmjs.com/package/ws), the
+most popular WebSocket implementation in node.js.
+
+If certain APIs were called with `Number` parameters instead of `String` or `Buffer` as
+expected, then uninitialized server memory would be disclosed to the remote peer.
+
+These were the vulnerable methods:
+
+```js
+socket.send(number)
+socket.ping(number)
+socket.pong(number)
+```
+
+Here's a vulnerable socket server with some echo functionality:
+
+```js
+server.on('connection', function (socket) {
+  socket.on('message', function (message) {
+    message = JSON.parse(message)
+    if (message.type === 'echo') {
+      socket.send(message.data) // send back the user's message
+    }
+  })
+})
+```
+
+`socket.send(number)` called on the server, will disclose server memory.
+
+Here's [the release](https://github.com/websockets/ws/releases/tag/1.0.1) where the issue
+was fixed, with a more detailed explanation. Props to
+[Arnout Kazemier](https://github.com/3rd-Eden) for the quick fix. Here's the
+[Node Security Project disclosure](https://nodesecurity.io/advisories/67).
+
+
+### What's the solution?
+
+It's important that node.js offers a fast way to get memory otherwise performance-critical
+applications would needlessly get a lot slower.
+
+But we need a better way to *signal our intent* as programmers. **When we want
+uninitialized memory, we should request it explicitly.**
+
+Sensitive functionality should not be packed into a developer-friendly API that loosely
+accepts many different types. This type of API encourages the lazy practice of passing
+variables in without checking the type very carefully.
+
+#### A new API: `Buffer.allocUnsafe(number)`
+
+The functionality of creating buffers with uninitialized memory should be part of another
+API. We propose `Buffer.allocUnsafe(number)`. This way, it's not part of an API that
+frequently gets user input of all sorts of different types passed into it.
+
+```js
+var buf = Buffer.allocUnsafe(16) // careful, uninitialized memory!
+
+// Immediately overwrite the uninitialized buffer with data from another buffer
+for (var i = 0; i < buf.length; i++) {
+  buf[i] = otherBuf[i]
+}
+```
+
+
+### How do we fix node.js core?
+
+We sent [a PR to node.js core](https://github.com/nodejs/node/pull/4514) (merged as
+`semver-major`) which defends against one case:
+
+```js
+var str = 16
+new Buffer(str, 'utf8')
+```
+
+In this situation, it's implied that the programmer intended the first argument to be a
+string, since they passed an encoding as a second argument. Today, node.js will allocate
+uninitialized memory in the case of `new Buffer(number, encoding)`, which is probably not
+what the programmer intended.
+
+But this is only a partial solution, since if the programmer does `new Buffer(variable)`
+(without an `encoding` parameter) there's no way to know what they intended. If `variable`
+is sometimes a number, then uninitialized memory will sometimes be returned.
+
+### What's the real long-term fix?
+
+We could deprecate and remove `new Buffer(number)` and use `Buffer.allocUnsafe(number)` when
+we need uninitialized memory. But that would break 1000s of packages.
+
+~~We believe the best solution is to:~~
+
+~~1. Change `new Buffer(number)` to return safe, zeroed-out memory~~
+
+~~2. Create a new API for creating uninitialized Buffers. We propose: `Buffer.allocUnsafe(number)`~~
+
+#### Update
+
+We now support adding three new APIs:
+
+- `Buffer.from(value)` - convert from any type to a buffer
+- `Buffer.alloc(size)` - create a zero-filled buffer
+- `Buffer.allocUnsafe(size)` - create an uninitialized buffer with given size
+
+This solves the core problem that affected `ws` and `bittorrent-dht` which is
+`Buffer(variable)` getting tricked into taking a number argument.
+
+This way, existing code continues working and the impact on the npm ecosystem will be
+minimal. Over time, npm maintainers can migrate performance-critical code to use
+`Buffer.allocUnsafe(number)` instead of `new Buffer(number)`.
+
+
+### Conclusion
+
+We think there's a serious design issue with the `Buffer` API as it exists today. It
+promotes insecure software by putting high-risk functionality into a convenient API
+with friendly "developer ergonomics".
+
+This wasn't merely a theoretical exercise because we found the issue in some of the
+most popular npm packages.
+
+Fortunately, there's an easy fix that can be applied today. Use `safe-buffer` in place of
+`buffer`.
+
+```js
+var Buffer = require('safe-buffer').Buffer
+```
+
+Eventually, we hope that node.js core can switch to this new, safer behavior. We believe
+the impact on the ecosystem would be minimal since it's not a breaking change.
+Well-maintained, popular packages would be updated to use `Buffer.alloc` quickly, while
+older, insecure packages would magically become safe from this attack vector.
+
+
+## links
+
+- [Node.js PR: buffer: throw if both length and enc are passed](https://github.com/nodejs/node/pull/4514)
+- [Node Security Project disclosure for `ws`](https://nodesecurity.io/advisories/67)
+- [Node Security Project disclosure for`bittorrent-dht`](https://nodesecurity.io/advisories/68)
+
+
+## credit
+
+The original issues in `bittorrent-dht`
+([disclosure](https://nodesecurity.io/advisories/68)) and
+`ws` ([disclosure](https://nodesecurity.io/advisories/67)) were discovered by
+[Mathias Buus](https://github.com/mafintosh) and
+[Feross Aboukhadijeh](http://feross.org/).
+
+Thanks to [Adam Baldwin](https://github.com/evilpacket) for helping disclose these issues
+and for his work running the [Node Security Project](https://nodesecurity.io/).
+
+Thanks to [John Hiesey](https://github.com/jhiesey) for proofreading this README and
+auditing the code.
+
+
+## license
+
+MIT. Copyright (C) [Feross Aboukhadijeh](http://feross.org)
diff --git a/backend/node_modules/readable-stream/node_modules/safe-buffer/index.d.ts b/backend/node_modules/readable-stream/node_modules/safe-buffer/index.d.ts
new file mode 100644
index 0000000..e9fed80
--- /dev/null
+++ b/backend/node_modules/readable-stream/node_modules/safe-buffer/index.d.ts
@@ -0,0 +1,187 @@
+declare module "safe-buffer" {
+  export class Buffer {
+    length: number
+    write(string: string, offset?: number, length?: number, encoding?: string): number;
+    toString(encoding?: string, start?: number, end?: number): string;
+    toJSON(): { type: 'Buffer', data: any[] };
+    equals(otherBuffer: Buffer): boolean;
+    compare(otherBuffer: Buffer, targetStart?: number, targetEnd?: number, sourceStart?: number, sourceEnd?: number): number;
+    copy(targetBuffer: Buffer, targetStart?: number, sourceStart?: number, sourceEnd?: number): number;
+    slice(start?: number, end?: number): Buffer;
+    writeUIntLE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+    writeUIntBE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+    writeIntLE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+    writeIntBE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+    readUIntLE(offset: number, byteLength: number, noAssert?: boolean): number;
+    readUIntBE(offset: number, byteLength: number, noAssert?: boolean): number;
+    readIntLE(offset: number, byteLength: number, noAssert?: boolean): number;
+    readIntBE(offset: number, byteLength: number, noAssert?: boolean): number;
+    readUInt8(offset: number, noAssert?: boolean): number;
+    readUInt16LE(offset: number, noAssert?: boolean): number;
+    readUInt16BE(offset: number, noAssert?: boolean): number;
+    readUInt32LE(offset: number, noAssert?: boolean): number;
+    readUInt32BE(offset: number, noAssert?: boolean): number;
+    readInt8(offset: number, noAssert?: boolean): number;
+    readInt16LE(offset: number, noAssert?: boolean): number;
+    readInt16BE(offset: number, noAssert?: boolean): number;
+    readInt32LE(offset: number, noAssert?: boolean): number;
+    readInt32BE(offset: number, noAssert?: boolean): number;
+    readFloatLE(offset: number, noAssert?: boolean): number;
+    readFloatBE(offset: number, noAssert?: boolean): number;
+    readDoubleLE(offset: number, noAssert?: boolean): number;
+    readDoubleBE(offset: number, noAssert?: boolean): number;
+    swap16(): Buffer;
+    swap32(): Buffer;
+    swap64(): Buffer;
+    writeUInt8(value: number, offset: number, noAssert?: boolean): number;
+    writeUInt16LE(value: number, offset: number, noAssert?: boolean): number;
+    writeUInt16BE(value: number, offset: number, noAssert?: boolean): number;
+    writeUInt32LE(value: number, offset: number, noAssert?: boolean): number;
+    writeUInt32BE(value: number, offset: number, noAssert?: boolean): number;
+    writeInt8(value: number, offset: number, noAssert?: boolean): number;
+    writeInt16LE(value: number, offset: number, noAssert?: boolean): number;
+    writeInt16BE(value: number, offset: number, noAssert?: boolean): number;
+    writeInt32LE(value: number, offset: number, noAssert?: boolean): number;
+    writeInt32BE(value: number, offset: number, noAssert?: boolean): number;
+    writeFloatLE(value: number, offset: number, noAssert?: boolean): number;
+    writeFloatBE(value: number, offset: number, noAssert?: boolean): number;
+    writeDoubleLE(value: number, offset: number, noAssert?: boolean): number;
+    writeDoubleBE(value: number, offset: number, noAssert?: boolean): number;
+    fill(value: any, offset?: number, end?: number): this;
+    indexOf(value: string | number | Buffer, byteOffset?: number, encoding?: string): number;
+    lastIndexOf(value: string | number | Buffer, byteOffset?: number, encoding?: string): number;
+    includes(value: string | number | Buffer, byteOffset?: number, encoding?: string): boolean;
+
+    /**
+     * Allocates a new buffer containing the given {str}.
+     *
+     * @param str String to store in buffer.
+     * @param encoding encoding to use, optional.  Default is 'utf8'
+     */
+     constructor (str: string, encoding?: string);
+    /**
+     * Allocates a new buffer of {size} octets.
+     *
+     * @param size count of octets to allocate.
+     */
+    constructor (size: number);
+    /**
+     * Allocates a new buffer containing the given {array} of octets.
+     *
+     * @param array The octets to store.
+     */
+    constructor (array: Uint8Array);
+    /**
+     * Produces a Buffer backed by the same allocated memory as
+     * the given {ArrayBuffer}.
+     *
+     *
+     * @param arrayBuffer The ArrayBuffer with which to share memory.
+     */
+    constructor (arrayBuffer: ArrayBuffer);
+    /**
+     * Allocates a new buffer containing the given {array} of octets.
+     *
+     * @param array The octets to store.
+     */
+    constructor (array: any[]);
+    /**
+     * Copies the passed {buffer} data onto a new {Buffer} instance.
+     *
+     * @param buffer The buffer to copy.
+     */
+    constructor (buffer: Buffer);
+    prototype: Buffer;
+    /**
+     * Allocates a new Buffer using an {array} of octets.
+     *
+     * @param array
+     */
+    static from(array: any[]): Buffer;
+    /**
+     * When passed a reference to the .buffer property of a TypedArray instance,
+     * the newly created Buffer will share the same allocated memory as the TypedArray.
+     * The optional {byteOffset} and {length} arguments specify a memory range
+     * within the {arrayBuffer} that will be shared by the Buffer.
+     *
+     * @param arrayBuffer The .buffer property of a TypedArray or a new ArrayBuffer()
+     * @param byteOffset
+     * @param length
+     */
+    static from(arrayBuffer: ArrayBuffer, byteOffset?: number, length?: number): Buffer;
+    /**
+     * Copies the passed {buffer} data onto a new Buffer instance.
+     *
+     * @param buffer
+     */
+    static from(buffer: Buffer): Buffer;
+    /**
+     * Creates a new Buffer containing the given JavaScript string {str}.
+     * If provided, the {encoding} parameter identifies the character encoding.
+     * If not provided, {encoding} defaults to 'utf8'.
+     *
+     * @param str
+     */
+    static from(str: string, encoding?: string): Buffer;
+    /**
+     * Returns true if {obj} is a Buffer
+     *
+     * @param obj object to test.
+     */
+    static isBuffer(obj: any): obj is Buffer;
+    /**
+     * Returns true if {encoding} is a valid encoding argument.
+     * Valid string encodings in Node 0.12: 'ascii'|'utf8'|'utf16le'|'ucs2'(alias of 'utf16le')|'base64'|'binary'(deprecated)|'hex'
+     *
+     * @param encoding string to test.
+     */
+    static isEncoding(encoding: string): boolean;
+    /**
+     * Gives the actual byte length of a string. encoding defaults to 'utf8'.
+     * This is not the same as String.prototype.length since that returns the number of characters in a string.
+     *
+     * @param string string to test.
+     * @param encoding encoding used to evaluate (defaults to 'utf8')
+     */
+    static byteLength(string: string, encoding?: string): number;
+    /**
+     * Returns a buffer which is the result of concatenating all the buffers in the list together.
+     *
+     * If the list has no items, or if the totalLength is 0, then it returns a zero-length buffer.
+     * If the list has exactly one item, then the first item of the list is returned.
+     * If the list has more than one item, then a new Buffer is created.
+     *
+     * @param list An array of Buffer objects to concatenate
+     * @param totalLength Total length of the buffers when concatenated.
+     *   If totalLength is not provided, it is read from the buffers in the list. However, this adds an additional loop to the function, so it is faster to provide the length explicitly.
+     */
+    static concat(list: Buffer[], totalLength?: number): Buffer;
+    /**
+     * The same as buf1.compare(buf2).
+     */
+    static compare(buf1: Buffer, buf2: Buffer): number;
+    /**
+     * Allocates a new buffer of {size} octets.
+     *
+     * @param size count of octets to allocate.
+     * @param fill if specified, buffer will be initialized by calling buf.fill(fill).
+     *    If parameter is omitted, buffer will be filled with zeros.
+     * @param encoding encoding used for call to buf.fill while initalizing
+     */
+    static alloc(size: number, fill?: string | Buffer | number, encoding?: string): Buffer;
+    /**
+     * Allocates a new buffer of {size} octets, leaving memory not initialized, so the contents
+     * of the newly created Buffer are unknown and may contain sensitive data.
+     *
+     * @param size count of octets to allocate
+     */
+    static allocUnsafe(size: number): Buffer;
+    /**
+     * Allocates a new non-pooled buffer of {size} octets, leaving memory not initialized, so the contents
+     * of the newly created Buffer are unknown and may contain sensitive data.
+     *
+     * @param size count of octets to allocate
+     */
+    static allocUnsafeSlow(size: number): Buffer;
+  }
+}
\ No newline at end of file
diff --git a/backend/node_modules/readable-stream/node_modules/safe-buffer/index.js b/backend/node_modules/readable-stream/node_modules/safe-buffer/index.js
new file mode 100644
index 0000000..22438da
--- /dev/null
+++ b/backend/node_modules/readable-stream/node_modules/safe-buffer/index.js
@@ -0,0 +1,62 @@
+/* eslint-disable node/no-deprecated-api */
+var buffer = require('buffer')
+var Buffer = buffer.Buffer
+
+// alternative to using Object.keys for old browsers
+function copyProps (src, dst) {
+  for (var key in src) {
+    dst[key] = src[key]
+  }
+}
+if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
+  module.exports = buffer
+} else {
+  // Copy properties from require('buffer')
+  copyProps(buffer, exports)
+  exports.Buffer = SafeBuffer
+}
+
+function SafeBuffer (arg, encodingOrOffset, length) {
+  return Buffer(arg, encodingOrOffset, length)
+}
+
+// Copy static methods from Buffer
+copyProps(Buffer, SafeBuffer)
+
+SafeBuffer.from = function (arg, encodingOrOffset, length) {
+  if (typeof arg === 'number') {
+    throw new TypeError('Argument must not be a number')
+  }
+  return Buffer(arg, encodingOrOffset, length)
+}
+
+SafeBuffer.alloc = function (size, fill, encoding) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  var buf = Buffer(size)
+  if (fill !== undefined) {
+    if (typeof encoding === 'string') {
+      buf.fill(fill, encoding)
+    } else {
+      buf.fill(fill)
+    }
+  } else {
+    buf.fill(0)
+  }
+  return buf
+}
+
+SafeBuffer.allocUnsafe = function (size) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  return Buffer(size)
+}
+
+SafeBuffer.allocUnsafeSlow = function (size) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  return buffer.SlowBuffer(size)
+}
diff --git a/backend/node_modules/readable-stream/node_modules/safe-buffer/package.json b/backend/node_modules/readable-stream/node_modules/safe-buffer/package.json
new file mode 100644
index 0000000..623fbc3
--- /dev/null
+++ b/backend/node_modules/readable-stream/node_modules/safe-buffer/package.json
@@ -0,0 +1,37 @@
+{
+  "name": "safe-buffer",
+  "description": "Safer Node.js Buffer API",
+  "version": "5.1.2",
+  "author": {
+    "name": "Feross Aboukhadijeh",
+    "email": "feross@feross.org",
+    "url": "http://feross.org"
+  },
+  "bugs": {
+    "url": "https://github.com/feross/safe-buffer/issues"
+  },
+  "devDependencies": {
+    "standard": "*",
+    "tape": "^4.0.0"
+  },
+  "homepage": "https://github.com/feross/safe-buffer",
+  "keywords": [
+    "buffer",
+    "buffer allocate",
+    "node security",
+    "safe",
+    "safe-buffer",
+    "security",
+    "uninitialized"
+  ],
+  "license": "MIT",
+  "main": "index.js",
+  "types": "index.d.ts",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/feross/safe-buffer.git"
+  },
+  "scripts": {
+    "test": "standard && tape test/*.js"
+  }
+}
diff --git a/backend/node_modules/readable-stream/package.json b/backend/node_modules/readable-stream/package.json
new file mode 100644
index 0000000..514c178
--- /dev/null
+++ b/backend/node_modules/readable-stream/package.json
@@ -0,0 +1,52 @@
+{
+  "name": "readable-stream",
+  "version": "2.3.8",
+  "description": "Streams3, a user-land copy of the stream library from Node.js",
+  "main": "readable.js",
+  "dependencies": {
+    "core-util-is": "~1.0.0",
+    "inherits": "~2.0.3",
+    "isarray": "~1.0.0",
+    "process-nextick-args": "~2.0.0",
+    "safe-buffer": "~5.1.1",
+    "string_decoder": "~1.1.1",
+    "util-deprecate": "~1.0.1"
+  },
+  "devDependencies": {
+    "assert": "^1.4.0",
+    "babel-polyfill": "^6.9.1",
+    "buffer": "^4.9.0",
+    "lolex": "^2.3.2",
+    "nyc": "^6.4.0",
+    "tap": "^0.7.0",
+    "tape": "^4.8.0"
+  },
+  "scripts": {
+    "test": "tap test/parallel/*.js test/ours/*.js && node test/verify-dependencies.js",
+    "ci": "tap test/parallel/*.js test/ours/*.js --tap | tee test.tap && node test/verify-dependencies.js",
+    "cover": "nyc npm test",
+    "report": "nyc report --reporter=lcov"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/nodejs/readable-stream"
+  },
+  "keywords": [
+    "readable",
+    "stream",
+    "pipe"
+  ],
+  "browser": {
+    "util": false,
+    "./readable.js": "./readable-browser.js",
+    "./writable.js": "./writable-browser.js",
+    "./duplex.js": "./duplex-browser.js",
+    "./lib/internal/streams/stream.js": "./lib/internal/streams/stream-browser.js"
+  },
+  "nyc": {
+    "include": [
+      "lib/**.js"
+    ]
+  },
+  "license": "MIT"
+}
diff --git a/backend/node_modules/readable-stream/passthrough.js b/backend/node_modules/readable-stream/passthrough.js
new file mode 100644
index 0000000..ffd791d
--- /dev/null
+++ b/backend/node_modules/readable-stream/passthrough.js
@@ -0,0 +1 @@
+module.exports = require('./readable').PassThrough
diff --git a/backend/node_modules/readable-stream/readable-browser.js b/backend/node_modules/readable-stream/readable-browser.js
new file mode 100644
index 0000000..e503725
--- /dev/null
+++ b/backend/node_modules/readable-stream/readable-browser.js
@@ -0,0 +1,7 @@
+exports = module.exports = require('./lib/_stream_readable.js');
+exports.Stream = exports;
+exports.Readable = exports;
+exports.Writable = require('./lib/_stream_writable.js');
+exports.Duplex = require('./lib/_stream_duplex.js');
+exports.Transform = require('./lib/_stream_transform.js');
+exports.PassThrough = require('./lib/_stream_passthrough.js');
diff --git a/backend/node_modules/readable-stream/readable.js b/backend/node_modules/readable-stream/readable.js
new file mode 100644
index 0000000..ec89ec5
--- /dev/null
+++ b/backend/node_modules/readable-stream/readable.js
@@ -0,0 +1,19 @@
+var Stream = require('stream');
+if (process.env.READABLE_STREAM === 'disable' && Stream) {
+  module.exports = Stream;
+  exports = module.exports = Stream.Readable;
+  exports.Readable = Stream.Readable;
+  exports.Writable = Stream.Writable;
+  exports.Duplex = Stream.Duplex;
+  exports.Transform = Stream.Transform;
+  exports.PassThrough = Stream.PassThrough;
+  exports.Stream = Stream;
+} else {
+  exports = module.exports = require('./lib/_stream_readable.js');
+  exports.Stream = Stream || exports;
+  exports.Readable = exports;
+  exports.Writable = require('./lib/_stream_writable.js');
+  exports.Duplex = require('./lib/_stream_duplex.js');
+  exports.Transform = require('./lib/_stream_transform.js');
+  exports.PassThrough = require('./lib/_stream_passthrough.js');
+}
diff --git a/backend/node_modules/readable-stream/transform.js b/backend/node_modules/readable-stream/transform.js
new file mode 100644
index 0000000..b1baba2
--- /dev/null
+++ b/backend/node_modules/readable-stream/transform.js
@@ -0,0 +1 @@
+module.exports = require('./readable').Transform
diff --git a/backend/node_modules/readable-stream/writable-browser.js b/backend/node_modules/readable-stream/writable-browser.js
new file mode 100644
index 0000000..ebdde6a
--- /dev/null
+++ b/backend/node_modules/readable-stream/writable-browser.js
@@ -0,0 +1 @@
+module.exports = require('./lib/_stream_writable.js');
diff --git a/backend/node_modules/readable-stream/writable.js b/backend/node_modules/readable-stream/writable.js
new file mode 100644
index 0000000..3211a6f
--- /dev/null
+++ b/backend/node_modules/readable-stream/writable.js
@@ -0,0 +1,8 @@
+var Stream = require("stream")
+var Writable = require("./lib/_stream_writable.js")
+
+if (process.env.READABLE_STREAM === 'disable') {
+  module.exports = Stream && Stream.Writable || Writable
+} else {
+  module.exports = Writable
+}
diff --git a/backend/node_modules/safe-buffer/LICENSE b/backend/node_modules/safe-buffer/LICENSE
new file mode 100644
index 0000000..0c068ce
--- /dev/null
+++ b/backend/node_modules/safe-buffer/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Feross Aboukhadijeh
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/safe-buffer/README.md b/backend/node_modules/safe-buffer/README.md
new file mode 100644
index 0000000..e9a81af
--- /dev/null
+++ b/backend/node_modules/safe-buffer/README.md
@@ -0,0 +1,584 @@
+# safe-buffer [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][downloads-url] [![javascript style guide][standard-image]][standard-url]
+
+[travis-image]: https://img.shields.io/travis/feross/safe-buffer/master.svg
+[travis-url]: https://travis-ci.org/feross/safe-buffer
+[npm-image]: https://img.shields.io/npm/v/safe-buffer.svg
+[npm-url]: https://npmjs.org/package/safe-buffer
+[downloads-image]: https://img.shields.io/npm/dm/safe-buffer.svg
+[downloads-url]: https://npmjs.org/package/safe-buffer
+[standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg
+[standard-url]: https://standardjs.com
+
+#### Safer Node.js Buffer API
+
+**Use the new Node.js Buffer APIs (`Buffer.from`, `Buffer.alloc`,
+`Buffer.allocUnsafe`, `Buffer.allocUnsafeSlow`) in all versions of Node.js.**
+
+**Uses the built-in implementation when available.**
+
+## install
+
+```
+npm install safe-buffer
+```
+
+## usage
+
+The goal of this package is to provide a safe replacement for the node.js `Buffer`.
+
+It's a drop-in replacement for `Buffer`. You can use it by adding one `require` line to
+the top of your node.js modules:
+
+```js
+var Buffer = require('safe-buffer').Buffer
+
+// Existing buffer code will continue to work without issues:
+
+new Buffer('hey', 'utf8')
+new Buffer([1, 2, 3], 'utf8')
+new Buffer(obj)
+new Buffer(16) // create an uninitialized buffer (potentially unsafe)
+
+// But you can use these new explicit APIs to make clear what you want:
+
+Buffer.from('hey', 'utf8') // convert from many types to a Buffer
+Buffer.alloc(16) // create a zero-filled buffer (safe)
+Buffer.allocUnsafe(16) // create an uninitialized buffer (potentially unsafe)
+```
+
+## api
+
+### Class Method: Buffer.from(array)
+<!-- YAML
+added: v3.0.0
+-->
+
+* `array` {Array}
+
+Allocates a new `Buffer` using an `array` of octets.
+
+```js
+const buf = Buffer.from([0x62,0x75,0x66,0x66,0x65,0x72]);
+  // creates a new Buffer containing ASCII bytes
+  // ['b','u','f','f','e','r']
+```
+
+A `TypeError` will be thrown if `array` is not an `Array`.
+
+### Class Method: Buffer.from(arrayBuffer[, byteOffset[, length]])
+<!-- YAML
+added: v5.10.0
+-->
+
+* `arrayBuffer` {ArrayBuffer} The `.buffer` property of a `TypedArray` or
+  a `new ArrayBuffer()`
+* `byteOffset` {Number} Default: `0`
+* `length` {Number} Default: `arrayBuffer.length - byteOffset`
+
+When passed a reference to the `.buffer` property of a `TypedArray` instance,
+the newly created `Buffer` will share the same allocated memory as the
+TypedArray.
+
+```js
+const arr = new Uint16Array(2);
+arr[0] = 5000;
+arr[1] = 4000;
+
+const buf = Buffer.from(arr.buffer); // shares the memory with arr;
+
+console.log(buf);
+  // Prints: <Buffer 88 13 a0 0f>
+
+// changing the TypedArray changes the Buffer also
+arr[1] = 6000;
+
+console.log(buf);
+  // Prints: <Buffer 88 13 70 17>
+```
+
+The optional `byteOffset` and `length` arguments specify a memory range within
+the `arrayBuffer` that will be shared by the `Buffer`.
+
+```js
+const ab = new ArrayBuffer(10);
+const buf = Buffer.from(ab, 0, 2);
+console.log(buf.length);
+  // Prints: 2
+```
+
+A `TypeError` will be thrown if `arrayBuffer` is not an `ArrayBuffer`.
+
+### Class Method: Buffer.from(buffer)
+<!-- YAML
+added: v3.0.0
+-->
+
+* `buffer` {Buffer}
+
+Copies the passed `buffer` data onto a new `Buffer` instance.
+
+```js
+const buf1 = Buffer.from('buffer');
+const buf2 = Buffer.from(buf1);
+
+buf1[0] = 0x61;
+console.log(buf1.toString());
+  // 'auffer'
+console.log(buf2.toString());
+  // 'buffer' (copy is not changed)
+```
+
+A `TypeError` will be thrown if `buffer` is not a `Buffer`.
+
+### Class Method: Buffer.from(str[, encoding])
+<!-- YAML
+added: v5.10.0
+-->
+
+* `str` {String} String to encode.
+* `encoding` {String} Encoding to use, Default: `'utf8'`
+
+Creates a new `Buffer` containing the given JavaScript string `str`. If
+provided, the `encoding` parameter identifies the character encoding.
+If not provided, `encoding` defaults to `'utf8'`.
+
+```js
+const buf1 = Buffer.from('this is a tést');
+console.log(buf1.toString());
+  // prints: this is a tést
+console.log(buf1.toString('ascii'));
+  // prints: this is a tC)st
+
+const buf2 = Buffer.from('7468697320697320612074c3a97374', 'hex');
+console.log(buf2.toString());
+  // prints: this is a tést
+```
+
+A `TypeError` will be thrown if `str` is not a string.
+
+### Class Method: Buffer.alloc(size[, fill[, encoding]])
+<!-- YAML
+added: v5.10.0
+-->
+
+* `size` {Number}
+* `fill` {Value} Default: `undefined`
+* `encoding` {String} Default: `utf8`
+
+Allocates a new `Buffer` of `size` bytes. If `fill` is `undefined`, the
+`Buffer` will be *zero-filled*.
+
+```js
+const buf = Buffer.alloc(5);
+console.log(buf);
+  // <Buffer 00 00 00 00 00>
+```
+
+The `size` must be less than or equal to the value of
+`require('buffer').kMaxLength` (on 64-bit architectures, `kMaxLength` is
+`(2^31)-1`). Otherwise, a [`RangeError`][] is thrown. A zero-length Buffer will
+be created if a `size` less than or equal to 0 is specified.
+
+If `fill` is specified, the allocated `Buffer` will be initialized by calling
+`buf.fill(fill)`. See [`buf.fill()`][] for more information.
+
+```js
+const buf = Buffer.alloc(5, 'a');
+console.log(buf);
+  // <Buffer 61 61 61 61 61>
+```
+
+If both `fill` and `encoding` are specified, the allocated `Buffer` will be
+initialized by calling `buf.fill(fill, encoding)`. For example:
+
+```js
+const buf = Buffer.alloc(11, 'aGVsbG8gd29ybGQ=', 'base64');
+console.log(buf);
+  // <Buffer 68 65 6c 6c 6f 20 77 6f 72 6c 64>
+```
+
+Calling `Buffer.alloc(size)` can be significantly slower than the alternative
+`Buffer.allocUnsafe(size)` but ensures that the newly created `Buffer` instance
+contents will *never contain sensitive data*.
+
+A `TypeError` will be thrown if `size` is not a number.
+
+### Class Method: Buffer.allocUnsafe(size)
+<!-- YAML
+added: v5.10.0
+-->
+
+* `size` {Number}
+
+Allocates a new *non-zero-filled* `Buffer` of `size` bytes.  The `size` must
+be less than or equal to the value of `require('buffer').kMaxLength` (on 64-bit
+architectures, `kMaxLength` is `(2^31)-1`). Otherwise, a [`RangeError`][] is
+thrown. A zero-length Buffer will be created if a `size` less than or equal to
+0 is specified.
+
+The underlying memory for `Buffer` instances created in this way is *not
+initialized*. The contents of the newly created `Buffer` are unknown and
+*may contain sensitive data*. Use [`buf.fill(0)`][] to initialize such
+`Buffer` instances to zeroes.
+
+```js
+const buf = Buffer.allocUnsafe(5);
+console.log(buf);
+  // <Buffer 78 e0 82 02 01>
+  // (octets will be different, every time)
+buf.fill(0);
+console.log(buf);
+  // <Buffer 00 00 00 00 00>
+```
+
+A `TypeError` will be thrown if `size` is not a number.
+
+Note that the `Buffer` module pre-allocates an internal `Buffer` instance of
+size `Buffer.poolSize` that is used as a pool for the fast allocation of new
+`Buffer` instances created using `Buffer.allocUnsafe(size)` (and the deprecated
+`new Buffer(size)` constructor) only when `size` is less than or equal to
+`Buffer.poolSize >> 1` (floor of `Buffer.poolSize` divided by two). The default
+value of `Buffer.poolSize` is `8192` but can be modified.
+
+Use of this pre-allocated internal memory pool is a key difference between
+calling `Buffer.alloc(size, fill)` vs. `Buffer.allocUnsafe(size).fill(fill)`.
+Specifically, `Buffer.alloc(size, fill)` will *never* use the internal Buffer
+pool, while `Buffer.allocUnsafe(size).fill(fill)` *will* use the internal
+Buffer pool if `size` is less than or equal to half `Buffer.poolSize`. The
+difference is subtle but can be important when an application requires the
+additional performance that `Buffer.allocUnsafe(size)` provides.
+
+### Class Method: Buffer.allocUnsafeSlow(size)
+<!-- YAML
+added: v5.10.0
+-->
+
+* `size` {Number}
+
+Allocates a new *non-zero-filled* and non-pooled `Buffer` of `size` bytes.  The
+`size` must be less than or equal to the value of
+`require('buffer').kMaxLength` (on 64-bit architectures, `kMaxLength` is
+`(2^31)-1`). Otherwise, a [`RangeError`][] is thrown. A zero-length Buffer will
+be created if a `size` less than or equal to 0 is specified.
+
+The underlying memory for `Buffer` instances created in this way is *not
+initialized*. The contents of the newly created `Buffer` are unknown and
+*may contain sensitive data*. Use [`buf.fill(0)`][] to initialize such
+`Buffer` instances to zeroes.
+
+When using `Buffer.allocUnsafe()` to allocate new `Buffer` instances,
+allocations under 4KB are, by default, sliced from a single pre-allocated
+`Buffer`. This allows applications to avoid the garbage collection overhead of
+creating many individually allocated Buffers. This approach improves both
+performance and memory usage by eliminating the need to track and cleanup as
+many `Persistent` objects.
+
+However, in the case where a developer may need to retain a small chunk of
+memory from a pool for an indeterminate amount of time, it may be appropriate
+to create an un-pooled Buffer instance using `Buffer.allocUnsafeSlow()` then
+copy out the relevant bits.
+
+```js
+// need to keep around a few small chunks of memory
+const store = [];
+
+socket.on('readable', () => {
+  const data = socket.read();
+  // allocate for retained data
+  const sb = Buffer.allocUnsafeSlow(10);
+  // copy the data into the new allocation
+  data.copy(sb, 0, 0, 10);
+  store.push(sb);
+});
+```
+
+Use of `Buffer.allocUnsafeSlow()` should be used only as a last resort *after*
+a developer has observed undue memory retention in their applications.
+
+A `TypeError` will be thrown if `size` is not a number.
+
+### All the Rest
+
+The rest of the `Buffer` API is exactly the same as in node.js.
+[See the docs](https://nodejs.org/api/buffer.html).
+
+
+## Related links
+
+- [Node.js issue: Buffer(number) is unsafe](https://github.com/nodejs/node/issues/4660)
+- [Node.js Enhancement Proposal: Buffer.from/Buffer.alloc/Buffer.zalloc/Buffer() soft-deprecate](https://github.com/nodejs/node-eps/pull/4)
+
+## Why is `Buffer` unsafe?
+
+Today, the node.js `Buffer` constructor is overloaded to handle many different argument
+types like `String`, `Array`, `Object`, `TypedArrayView` (`Uint8Array`, etc.),
+`ArrayBuffer`, and also `Number`.
+
+The API is optimized for convenience: you can throw any type at it, and it will try to do
+what you want.
+
+Because the Buffer constructor is so powerful, you often see code like this:
+
+```js
+// Convert UTF-8 strings to hex
+function toHex (str) {
+  return new Buffer(str).toString('hex')
+}
+```
+
+***But what happens if `toHex` is called with a `Number` argument?***
+
+### Remote Memory Disclosure
+
+If an attacker can make your program call the `Buffer` constructor with a `Number`
+argument, then they can make it allocate uninitialized memory from the node.js process.
+This could potentially disclose TLS private keys, user data, or database passwords.
+
+When the `Buffer` constructor is passed a `Number` argument, it returns an
+**UNINITIALIZED** block of memory of the specified `size`. When you create a `Buffer` like
+this, you **MUST** overwrite the contents before returning it to the user.
+
+From the [node.js docs](https://nodejs.org/api/buffer.html#buffer_new_buffer_size):
+
+> `new Buffer(size)`
+>
+> - `size` Number
+>
+> The underlying memory for `Buffer` instances created in this way is not initialized.
+> **The contents of a newly created `Buffer` are unknown and could contain sensitive
+> data.** Use `buf.fill(0)` to initialize a Buffer to zeroes.
+
+(Emphasis our own.)
+
+Whenever the programmer intended to create an uninitialized `Buffer` you often see code
+like this:
+
+```js
+var buf = new Buffer(16)
+
+// Immediately overwrite the uninitialized buffer with data from another buffer
+for (var i = 0; i < buf.length; i++) {
+  buf[i] = otherBuf[i]
+}
+```
+
+
+### Would this ever be a problem in real code?
+
+Yes. It's surprisingly common to forget to check the type of your variables in a
+dynamically-typed language like JavaScript.
+
+Usually the consequences of assuming the wrong type is that your program crashes with an
+uncaught exception. But the failure mode for forgetting to check the type of arguments to
+the `Buffer` constructor is more catastrophic.
+
+Here's an example of a vulnerable service that takes a JSON payload and converts it to
+hex:
+
+```js
+// Take a JSON payload {str: "some string"} and convert it to hex
+var server = http.createServer(function (req, res) {
+  var data = ''
+  req.setEncoding('utf8')
+  req.on('data', function (chunk) {
+    data += chunk
+  })
+  req.on('end', function () {
+    var body = JSON.parse(data)
+    res.end(new Buffer(body.str).toString('hex'))
+  })
+})
+
+server.listen(8080)
+```
+
+In this example, an http client just has to send:
+
+```json
+{
+  "str": 1000
+}
+```
+
+and it will get back 1,000 bytes of uninitialized memory from the server.
+
+This is a very serious bug. It's similar in severity to the
+[the Heartbleed bug](http://heartbleed.com/) that allowed disclosure of OpenSSL process
+memory by remote attackers.
+
+
+### Which real-world packages were vulnerable?
+
+#### [`bittorrent-dht`](https://www.npmjs.com/package/bittorrent-dht)
+
+[Mathias Buus](https://github.com/mafintosh) and I
+([Feross Aboukhadijeh](http://feross.org/)) found this issue in one of our own packages,
+[`bittorrent-dht`](https://www.npmjs.com/package/bittorrent-dht). The bug would allow
+anyone on the internet to send a series of messages to a user of `bittorrent-dht` and get
+them to reveal 20 bytes at a time of uninitialized memory from the node.js process.
+
+Here's
+[the commit](https://github.com/feross/bittorrent-dht/commit/6c7da04025d5633699800a99ec3fbadf70ad35b8)
+that fixed it. We released a new fixed version, created a
+[Node Security Project disclosure](https://nodesecurity.io/advisories/68), and deprecated all
+vulnerable versions on npm so users will get a warning to upgrade to a newer version.
+
+#### [`ws`](https://www.npmjs.com/package/ws)
+
+That got us wondering if there were other vulnerable packages. Sure enough, within a short
+period of time, we found the same issue in [`ws`](https://www.npmjs.com/package/ws), the
+most popular WebSocket implementation in node.js.
+
+If certain APIs were called with `Number` parameters instead of `String` or `Buffer` as
+expected, then uninitialized server memory would be disclosed to the remote peer.
+
+These were the vulnerable methods:
+
+```js
+socket.send(number)
+socket.ping(number)
+socket.pong(number)
+```
+
+Here's a vulnerable socket server with some echo functionality:
+
+```js
+server.on('connection', function (socket) {
+  socket.on('message', function (message) {
+    message = JSON.parse(message)
+    if (message.type === 'echo') {
+      socket.send(message.data) // send back the user's message
+    }
+  })
+})
+```
+
+`socket.send(number)` called on the server, will disclose server memory.
+
+Here's [the release](https://github.com/websockets/ws/releases/tag/1.0.1) where the issue
+was fixed, with a more detailed explanation. Props to
+[Arnout Kazemier](https://github.com/3rd-Eden) for the quick fix. Here's the
+[Node Security Project disclosure](https://nodesecurity.io/advisories/67).
+
+
+### What's the solution?
+
+It's important that node.js offers a fast way to get memory otherwise performance-critical
+applications would needlessly get a lot slower.
+
+But we need a better way to *signal our intent* as programmers. **When we want
+uninitialized memory, we should request it explicitly.**
+
+Sensitive functionality should not be packed into a developer-friendly API that loosely
+accepts many different types. This type of API encourages the lazy practice of passing
+variables in without checking the type very carefully.
+
+#### A new API: `Buffer.allocUnsafe(number)`
+
+The functionality of creating buffers with uninitialized memory should be part of another
+API. We propose `Buffer.allocUnsafe(number)`. This way, it's not part of an API that
+frequently gets user input of all sorts of different types passed into it.
+
+```js
+var buf = Buffer.allocUnsafe(16) // careful, uninitialized memory!
+
+// Immediately overwrite the uninitialized buffer with data from another buffer
+for (var i = 0; i < buf.length; i++) {
+  buf[i] = otherBuf[i]
+}
+```
+
+
+### How do we fix node.js core?
+
+We sent [a PR to node.js core](https://github.com/nodejs/node/pull/4514) (merged as
+`semver-major`) which defends against one case:
+
+```js
+var str = 16
+new Buffer(str, 'utf8')
+```
+
+In this situation, it's implied that the programmer intended the first argument to be a
+string, since they passed an encoding as a second argument. Today, node.js will allocate
+uninitialized memory in the case of `new Buffer(number, encoding)`, which is probably not
+what the programmer intended.
+
+But this is only a partial solution, since if the programmer does `new Buffer(variable)`
+(without an `encoding` parameter) there's no way to know what they intended. If `variable`
+is sometimes a number, then uninitialized memory will sometimes be returned.
+
+### What's the real long-term fix?
+
+We could deprecate and remove `new Buffer(number)` and use `Buffer.allocUnsafe(number)` when
+we need uninitialized memory. But that would break 1000s of packages.
+
+~~We believe the best solution is to:~~
+
+~~1. Change `new Buffer(number)` to return safe, zeroed-out memory~~
+
+~~2. Create a new API for creating uninitialized Buffers. We propose: `Buffer.allocUnsafe(number)`~~
+
+#### Update
+
+We now support adding three new APIs:
+
+- `Buffer.from(value)` - convert from any type to a buffer
+- `Buffer.alloc(size)` - create a zero-filled buffer
+- `Buffer.allocUnsafe(size)` - create an uninitialized buffer with given size
+
+This solves the core problem that affected `ws` and `bittorrent-dht` which is
+`Buffer(variable)` getting tricked into taking a number argument.
+
+This way, existing code continues working and the impact on the npm ecosystem will be
+minimal. Over time, npm maintainers can migrate performance-critical code to use
+`Buffer.allocUnsafe(number)` instead of `new Buffer(number)`.
+
+
+### Conclusion
+
+We think there's a serious design issue with the `Buffer` API as it exists today. It
+promotes insecure software by putting high-risk functionality into a convenient API
+with friendly "developer ergonomics".
+
+This wasn't merely a theoretical exercise because we found the issue in some of the
+most popular npm packages.
+
+Fortunately, there's an easy fix that can be applied today. Use `safe-buffer` in place of
+`buffer`.
+
+```js
+var Buffer = require('safe-buffer').Buffer
+```
+
+Eventually, we hope that node.js core can switch to this new, safer behavior. We believe
+the impact on the ecosystem would be minimal since it's not a breaking change.
+Well-maintained, popular packages would be updated to use `Buffer.alloc` quickly, while
+older, insecure packages would magically become safe from this attack vector.
+
+
+## links
+
+- [Node.js PR: buffer: throw if both length and enc are passed](https://github.com/nodejs/node/pull/4514)
+- [Node Security Project disclosure for `ws`](https://nodesecurity.io/advisories/67)
+- [Node Security Project disclosure for`bittorrent-dht`](https://nodesecurity.io/advisories/68)
+
+
+## credit
+
+The original issues in `bittorrent-dht`
+([disclosure](https://nodesecurity.io/advisories/68)) and
+`ws` ([disclosure](https://nodesecurity.io/advisories/67)) were discovered by
+[Mathias Buus](https://github.com/mafintosh) and
+[Feross Aboukhadijeh](http://feross.org/).
+
+Thanks to [Adam Baldwin](https://github.com/evilpacket) for helping disclose these issues
+and for his work running the [Node Security Project](https://nodesecurity.io/).
+
+Thanks to [John Hiesey](https://github.com/jhiesey) for proofreading this README and
+auditing the code.
+
+
+## license
+
+MIT. Copyright (C) [Feross Aboukhadijeh](http://feross.org)
diff --git a/backend/node_modules/safe-buffer/index.d.ts b/backend/node_modules/safe-buffer/index.d.ts
new file mode 100644
index 0000000..e9fed80
--- /dev/null
+++ b/backend/node_modules/safe-buffer/index.d.ts
@@ -0,0 +1,187 @@
+declare module "safe-buffer" {
+  export class Buffer {
+    length: number
+    write(string: string, offset?: number, length?: number, encoding?: string): number;
+    toString(encoding?: string, start?: number, end?: number): string;
+    toJSON(): { type: 'Buffer', data: any[] };
+    equals(otherBuffer: Buffer): boolean;
+    compare(otherBuffer: Buffer, targetStart?: number, targetEnd?: number, sourceStart?: number, sourceEnd?: number): number;
+    copy(targetBuffer: Buffer, targetStart?: number, sourceStart?: number, sourceEnd?: number): number;
+    slice(start?: number, end?: number): Buffer;
+    writeUIntLE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+    writeUIntBE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+    writeIntLE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+    writeIntBE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+    readUIntLE(offset: number, byteLength: number, noAssert?: boolean): number;
+    readUIntBE(offset: number, byteLength: number, noAssert?: boolean): number;
+    readIntLE(offset: number, byteLength: number, noAssert?: boolean): number;
+    readIntBE(offset: number, byteLength: number, noAssert?: boolean): number;
+    readUInt8(offset: number, noAssert?: boolean): number;
+    readUInt16LE(offset: number, noAssert?: boolean): number;
+    readUInt16BE(offset: number, noAssert?: boolean): number;
+    readUInt32LE(offset: number, noAssert?: boolean): number;
+    readUInt32BE(offset: number, noAssert?: boolean): number;
+    readInt8(offset: number, noAssert?: boolean): number;
+    readInt16LE(offset: number, noAssert?: boolean): number;
+    readInt16BE(offset: number, noAssert?: boolean): number;
+    readInt32LE(offset: number, noAssert?: boolean): number;
+    readInt32BE(offset: number, noAssert?: boolean): number;
+    readFloatLE(offset: number, noAssert?: boolean): number;
+    readFloatBE(offset: number, noAssert?: boolean): number;
+    readDoubleLE(offset: number, noAssert?: boolean): number;
+    readDoubleBE(offset: number, noAssert?: boolean): number;
+    swap16(): Buffer;
+    swap32(): Buffer;
+    swap64(): Buffer;
+    writeUInt8(value: number, offset: number, noAssert?: boolean): number;
+    writeUInt16LE(value: number, offset: number, noAssert?: boolean): number;
+    writeUInt16BE(value: number, offset: number, noAssert?: boolean): number;
+    writeUInt32LE(value: number, offset: number, noAssert?: boolean): number;
+    writeUInt32BE(value: number, offset: number, noAssert?: boolean): number;
+    writeInt8(value: number, offset: number, noAssert?: boolean): number;
+    writeInt16LE(value: number, offset: number, noAssert?: boolean): number;
+    writeInt16BE(value: number, offset: number, noAssert?: boolean): number;
+    writeInt32LE(value: number, offset: number, noAssert?: boolean): number;
+    writeInt32BE(value: number, offset: number, noAssert?: boolean): number;
+    writeFloatLE(value: number, offset: number, noAssert?: boolean): number;
+    writeFloatBE(value: number, offset: number, noAssert?: boolean): number;
+    writeDoubleLE(value: number, offset: number, noAssert?: boolean): number;
+    writeDoubleBE(value: number, offset: number, noAssert?: boolean): number;
+    fill(value: any, offset?: number, end?: number): this;
+    indexOf(value: string | number | Buffer, byteOffset?: number, encoding?: string): number;
+    lastIndexOf(value: string | number | Buffer, byteOffset?: number, encoding?: string): number;
+    includes(value: string | number | Buffer, byteOffset?: number, encoding?: string): boolean;
+
+    /**
+     * Allocates a new buffer containing the given {str}.
+     *
+     * @param str String to store in buffer.
+     * @param encoding encoding to use, optional.  Default is 'utf8'
+     */
+     constructor (str: string, encoding?: string);
+    /**
+     * Allocates a new buffer of {size} octets.
+     *
+     * @param size count of octets to allocate.
+     */
+    constructor (size: number);
+    /**
+     * Allocates a new buffer containing the given {array} of octets.
+     *
+     * @param array The octets to store.
+     */
+    constructor (array: Uint8Array);
+    /**
+     * Produces a Buffer backed by the same allocated memory as
+     * the given {ArrayBuffer}.
+     *
+     *
+     * @param arrayBuffer The ArrayBuffer with which to share memory.
+     */
+    constructor (arrayBuffer: ArrayBuffer);
+    /**
+     * Allocates a new buffer containing the given {array} of octets.
+     *
+     * @param array The octets to store.
+     */
+    constructor (array: any[]);
+    /**
+     * Copies the passed {buffer} data onto a new {Buffer} instance.
+     *
+     * @param buffer The buffer to copy.
+     */
+    constructor (buffer: Buffer);
+    prototype: Buffer;
+    /**
+     * Allocates a new Buffer using an {array} of octets.
+     *
+     * @param array
+     */
+    static from(array: any[]): Buffer;
+    /**
+     * When passed a reference to the .buffer property of a TypedArray instance,
+     * the newly created Buffer will share the same allocated memory as the TypedArray.
+     * The optional {byteOffset} and {length} arguments specify a memory range
+     * within the {arrayBuffer} that will be shared by the Buffer.
+     *
+     * @param arrayBuffer The .buffer property of a TypedArray or a new ArrayBuffer()
+     * @param byteOffset
+     * @param length
+     */
+    static from(arrayBuffer: ArrayBuffer, byteOffset?: number, length?: number): Buffer;
+    /**
+     * Copies the passed {buffer} data onto a new Buffer instance.
+     *
+     * @param buffer
+     */
+    static from(buffer: Buffer): Buffer;
+    /**
+     * Creates a new Buffer containing the given JavaScript string {str}.
+     * If provided, the {encoding} parameter identifies the character encoding.
+     * If not provided, {encoding} defaults to 'utf8'.
+     *
+     * @param str
+     */
+    static from(str: string, encoding?: string): Buffer;
+    /**
+     * Returns true if {obj} is a Buffer
+     *
+     * @param obj object to test.
+     */
+    static isBuffer(obj: any): obj is Buffer;
+    /**
+     * Returns true if {encoding} is a valid encoding argument.
+     * Valid string encodings in Node 0.12: 'ascii'|'utf8'|'utf16le'|'ucs2'(alias of 'utf16le')|'base64'|'binary'(deprecated)|'hex'
+     *
+     * @param encoding string to test.
+     */
+    static isEncoding(encoding: string): boolean;
+    /**
+     * Gives the actual byte length of a string. encoding defaults to 'utf8'.
+     * This is not the same as String.prototype.length since that returns the number of characters in a string.
+     *
+     * @param string string to test.
+     * @param encoding encoding used to evaluate (defaults to 'utf8')
+     */
+    static byteLength(string: string, encoding?: string): number;
+    /**
+     * Returns a buffer which is the result of concatenating all the buffers in the list together.
+     *
+     * If the list has no items, or if the totalLength is 0, then it returns a zero-length buffer.
+     * If the list has exactly one item, then the first item of the list is returned.
+     * If the list has more than one item, then a new Buffer is created.
+     *
+     * @param list An array of Buffer objects to concatenate
+     * @param totalLength Total length of the buffers when concatenated.
+     *   If totalLength is not provided, it is read from the buffers in the list. However, this adds an additional loop to the function, so it is faster to provide the length explicitly.
+     */
+    static concat(list: Buffer[], totalLength?: number): Buffer;
+    /**
+     * The same as buf1.compare(buf2).
+     */
+    static compare(buf1: Buffer, buf2: Buffer): number;
+    /**
+     * Allocates a new buffer of {size} octets.
+     *
+     * @param size count of octets to allocate.
+     * @param fill if specified, buffer will be initialized by calling buf.fill(fill).
+     *    If parameter is omitted, buffer will be filled with zeros.
+     * @param encoding encoding used for call to buf.fill while initalizing
+     */
+    static alloc(size: number, fill?: string | Buffer | number, encoding?: string): Buffer;
+    /**
+     * Allocates a new buffer of {size} octets, leaving memory not initialized, so the contents
+     * of the newly created Buffer are unknown and may contain sensitive data.
+     *
+     * @param size count of octets to allocate
+     */
+    static allocUnsafe(size: number): Buffer;
+    /**
+     * Allocates a new non-pooled buffer of {size} octets, leaving memory not initialized, so the contents
+     * of the newly created Buffer are unknown and may contain sensitive data.
+     *
+     * @param size count of octets to allocate
+     */
+    static allocUnsafeSlow(size: number): Buffer;
+  }
+}
\ No newline at end of file
diff --git a/backend/node_modules/safe-buffer/index.js b/backend/node_modules/safe-buffer/index.js
new file mode 100644
index 0000000..f8d3ec9
--- /dev/null
+++ b/backend/node_modules/safe-buffer/index.js
@@ -0,0 +1,65 @@
+/*! safe-buffer. MIT License. Feross Aboukhadijeh <https://feross.org/opensource> */
+/* eslint-disable node/no-deprecated-api */
+var buffer = require('buffer')
+var Buffer = buffer.Buffer
+
+// alternative to using Object.keys for old browsers
+function copyProps (src, dst) {
+  for (var key in src) {
+    dst[key] = src[key]
+  }
+}
+if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
+  module.exports = buffer
+} else {
+  // Copy properties from require('buffer')
+  copyProps(buffer, exports)
+  exports.Buffer = SafeBuffer
+}
+
+function SafeBuffer (arg, encodingOrOffset, length) {
+  return Buffer(arg, encodingOrOffset, length)
+}
+
+SafeBuffer.prototype = Object.create(Buffer.prototype)
+
+// Copy static methods from Buffer
+copyProps(Buffer, SafeBuffer)
+
+SafeBuffer.from = function (arg, encodingOrOffset, length) {
+  if (typeof arg === 'number') {
+    throw new TypeError('Argument must not be a number')
+  }
+  return Buffer(arg, encodingOrOffset, length)
+}
+
+SafeBuffer.alloc = function (size, fill, encoding) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  var buf = Buffer(size)
+  if (fill !== undefined) {
+    if (typeof encoding === 'string') {
+      buf.fill(fill, encoding)
+    } else {
+      buf.fill(fill)
+    }
+  } else {
+    buf.fill(0)
+  }
+  return buf
+}
+
+SafeBuffer.allocUnsafe = function (size) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  return Buffer(size)
+}
+
+SafeBuffer.allocUnsafeSlow = function (size) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  return buffer.SlowBuffer(size)
+}
diff --git a/backend/node_modules/safe-buffer/package.json b/backend/node_modules/safe-buffer/package.json
new file mode 100644
index 0000000..f2869e2
--- /dev/null
+++ b/backend/node_modules/safe-buffer/package.json
@@ -0,0 +1,51 @@
+{
+  "name": "safe-buffer",
+  "description": "Safer Node.js Buffer API",
+  "version": "5.2.1",
+  "author": {
+    "name": "Feross Aboukhadijeh",
+    "email": "feross@feross.org",
+    "url": "https://feross.org"
+  },
+  "bugs": {
+    "url": "https://github.com/feross/safe-buffer/issues"
+  },
+  "devDependencies": {
+    "standard": "*",
+    "tape": "^5.0.0"
+  },
+  "homepage": "https://github.com/feross/safe-buffer",
+  "keywords": [
+    "buffer",
+    "buffer allocate",
+    "node security",
+    "safe",
+    "safe-buffer",
+    "security",
+    "uninitialized"
+  ],
+  "license": "MIT",
+  "main": "index.js",
+  "types": "index.d.ts",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/feross/safe-buffer.git"
+  },
+  "scripts": {
+    "test": "standard && tape test/*.js"
+  },
+  "funding": [
+    {
+      "type": "github",
+      "url": "https://github.com/sponsors/feross"
+    },
+    {
+      "type": "patreon",
+      "url": "https://www.patreon.com/feross"
+    },
+    {
+      "type": "consulting",
+      "url": "https://feross.org/support"
+    }
+  ]
+}
diff --git a/backend/node_modules/safer-buffer/LICENSE b/backend/node_modules/safer-buffer/LICENSE
new file mode 100644
index 0000000..4fe9e6f
--- /dev/null
+++ b/backend/node_modules/safer-buffer/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2018 Nikita Skovoroda <chalkerx@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/safer-buffer/Porting-Buffer.md b/backend/node_modules/safer-buffer/Porting-Buffer.md
new file mode 100644
index 0000000..68d86ba
--- /dev/null
+++ b/backend/node_modules/safer-buffer/Porting-Buffer.md
@@ -0,0 +1,268 @@
+# Porting to the Buffer.from/Buffer.alloc API
+
+<a id="overview"></a>
+## Overview
+
+- [Variant 1: Drop support for Node.js ≤ 4.4.x and 5.0.0 — 5.9.x.](#variant-1) (*recommended*)
+- [Variant 2: Use a polyfill](#variant-2)
+- [Variant 3: manual detection, with safeguards](#variant-3)
+
+### Finding problematic bits of code using grep
+
+Just run `grep -nrE '[^a-zA-Z](Slow)?Buffer\s*\(' --exclude-dir node_modules`.
+
+It will find all the potentially unsafe places in your own code (with some considerably unlikely
+exceptions).
+
+### Finding problematic bits of code using Node.js 8
+
+If you’re using Node.js ≥ 8.0.0 (which is recommended), Node.js exposes multiple options that help with finding the relevant pieces of code:
+
+- `--trace-warnings` will make Node.js show a stack trace for this warning and other warnings that are printed by Node.js.
+- `--trace-deprecation` does the same thing, but only for deprecation warnings.
+- `--pending-deprecation` will show more types of deprecation warnings. In particular, it will show the `Buffer()` deprecation warning, even on Node.js 8.
+
+You can set these flags using an environment variable:
+
+```console
+$ export NODE_OPTIONS='--trace-warnings --pending-deprecation'
+$ cat example.js
+'use strict';
+const foo = new Buffer('foo');
+$ node example.js
+(node:7147) [DEP0005] DeprecationWarning: The Buffer() and new Buffer() constructors are not recommended for use due to security and usability concerns. Please use the new Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() construction methods instead.
+    at showFlaggedDeprecation (buffer.js:127:13)
+    at new Buffer (buffer.js:148:3)
+    at Object.<anonymous> (/path/to/example.js:2:13)
+    [... more stack trace lines ...]
+```
+
+### Finding problematic bits of code using linters
+
+Eslint rules [no-buffer-constructor](https://eslint.org/docs/rules/no-buffer-constructor)
+or
+[node/no-deprecated-api](https://github.com/mysticatea/eslint-plugin-node/blob/master/docs/rules/no-deprecated-api.md)
+also find calls to deprecated `Buffer()` API. Those rules are included in some pre-sets.
+
+There is a drawback, though, that it doesn't always
+[work correctly](https://github.com/chalker/safer-buffer#why-not-safe-buffer) when `Buffer` is
+overriden e.g. with a polyfill, so recommended is a combination of this and some other method
+described above.
+
+<a id="variant-1"></a>
+## Variant 1: Drop support for Node.js ≤ 4.4.x and 5.0.0 — 5.9.x.
+
+This is the recommended solution nowadays that would imply only minimal overhead.
+
+The Node.js 5.x release line has been unsupported since July 2016, and the Node.js 4.x release line reaches its End of Life in April 2018 (→ [Schedule](https://github.com/nodejs/Release#release-schedule)). This means that these versions of Node.js will *not* receive any updates, even in case of security issues, so using these release lines should be avoided, if at all possible.
+
+What you would do in this case is to convert all `new Buffer()` or `Buffer()` calls to use `Buffer.alloc()` or `Buffer.from()`, in the following way:
+
+- For `new Buffer(number)`, replace it with `Buffer.alloc(number)`.
+- For `new Buffer(string)` (or `new Buffer(string, encoding)`), replace it with `Buffer.from(string)` (or `Buffer.from(string, encoding)`).
+- For all other combinations of arguments (these are much rarer), also replace `new Buffer(...arguments)` with `Buffer.from(...arguments)`.
+
+Note that `Buffer.alloc()` is also _faster_ on the current Node.js versions than
+`new Buffer(size).fill(0)`, which is what you would otherwise need to ensure zero-filling.
+
+Enabling eslint rule [no-buffer-constructor](https://eslint.org/docs/rules/no-buffer-constructor)
+or
+[node/no-deprecated-api](https://github.com/mysticatea/eslint-plugin-node/blob/master/docs/rules/no-deprecated-api.md)
+is recommended to avoid accidential unsafe Buffer API usage.
+
+There is also a [JSCodeshift codemod](https://github.com/joyeecheung/node-dep-codemod#dep005)
+for automatically migrating Buffer constructors to `Buffer.alloc()` or `Buffer.from()`.
+Note that it currently only works with cases where the arguments are literals or where the
+constructor is invoked with two arguments.
+
+_If you currently support those older Node.js versions and dropping them would be a semver-major change
+for you, or if you support older branches of your packages, consider using [Variant 2](#variant-2)
+or [Variant 3](#variant-3) on older branches, so people using those older branches will also receive
+the fix. That way, you will eradicate potential issues caused by unguarded Buffer API usage and
+your users will not observe a runtime deprecation warning when running your code on Node.js 10._
+
+<a id="variant-2"></a>
+## Variant 2: Use a polyfill
+
+Utilize [safer-buffer](https://www.npmjs.com/package/safer-buffer) as a polyfill to support older
+Node.js versions.
+
+You would take exacly the same steps as in [Variant 1](#variant-1), but with a polyfill
+`const Buffer = require('safer-buffer').Buffer` in all files where you use the new `Buffer` api.
+
+Make sure that you do not use old `new Buffer` API — in any files where the line above is added,
+using old `new Buffer()` API will _throw_. It will be easy to notice that in CI, though.
+
+Alternatively, you could use [buffer-from](https://www.npmjs.com/package/buffer-from) and/or
+[buffer-alloc](https://www.npmjs.com/package/buffer-alloc) [ponyfills](https://ponyfill.com/) —
+those are great, the only downsides being 4 deps in the tree and slightly more code changes to
+migrate off them (as you would be using e.g. `Buffer.from` under a different name). If you need only
+`Buffer.from` polyfilled — `buffer-from` alone which comes with no extra dependencies.
+
+_Alternatively, you could use [safe-buffer](https://www.npmjs.com/package/safe-buffer) — it also
+provides a polyfill, but takes a different approach which has
+[it's drawbacks](https://github.com/chalker/safer-buffer#why-not-safe-buffer). It will allow you
+to also use the older `new Buffer()` API in your code, though — but that's arguably a benefit, as
+it is problematic, can cause issues in your code, and will start emitting runtime deprecation
+warnings starting with Node.js 10._
+
+Note that in either case, it is important that you also remove all calls to the old Buffer
+API manually — just throwing in `safe-buffer` doesn't fix the problem by itself, it just provides
+a polyfill for the new API. I have seen people doing that mistake.
+
+Enabling eslint rule [no-buffer-constructor](https://eslint.org/docs/rules/no-buffer-constructor)
+or
+[node/no-deprecated-api](https://github.com/mysticatea/eslint-plugin-node/blob/master/docs/rules/no-deprecated-api.md)
+is recommended.
+
+_Don't forget to drop the polyfill usage once you drop support for Node.js < 4.5.0._
+
+<a id="variant-3"></a>
+## Variant 3 — manual detection, with safeguards
+
+This is useful if you create Buffer instances in only a few places (e.g. one), or you have your own
+wrapper around them.
+
+### Buffer(0)
+
+This special case for creating empty buffers can be safely replaced with `Buffer.concat([])`, which
+returns the same result all the way down to Node.js 0.8.x.
+
+### Buffer(notNumber)
+
+Before:
+
+```js
+var buf = new Buffer(notNumber, encoding);
+```
+
+After:
+
+```js
+var buf;
+if (Buffer.from && Buffer.from !== Uint8Array.from) {
+  buf = Buffer.from(notNumber, encoding);
+} else {
+  if (typeof notNumber === 'number')
+    throw new Error('The "size" argument must be of type number.');
+  buf = new Buffer(notNumber, encoding);
+}
+```
+
+`encoding` is optional.
+
+Note that the `typeof notNumber` before `new Buffer` is required (for cases when `notNumber` argument is not
+hard-coded) and _is not caused by the deprecation of Buffer constructor_ — it's exactly _why_ the
+Buffer constructor is deprecated. Ecosystem packages lacking this type-check caused numereous
+security issues — situations when unsanitized user input could end up in the `Buffer(arg)` create
+problems ranging from DoS to leaking sensitive information to the attacker from the process memory.
+
+When `notNumber` argument is hardcoded (e.g. literal `"abc"` or `[0,1,2]`), the `typeof` check can
+be omitted.
+
+Also note that using TypeScript does not fix this problem for you — when libs written in
+`TypeScript` are used from JS, or when user input ends up there — it behaves exactly as pure JS, as
+all type checks are translation-time only and are not present in the actual JS code which TS
+compiles to.
+
+### Buffer(number)
+
+For Node.js 0.10.x (and below) support:
+
+```js
+var buf;
+if (Buffer.alloc) {
+  buf = Buffer.alloc(number);
+} else {
+  buf = new Buffer(number);
+  buf.fill(0);
+}
+```
+
+Otherwise (Node.js ≥ 0.12.x):
+
+```js
+const buf = Buffer.alloc ? Buffer.alloc(number) : new Buffer(number).fill(0);
+```
+
+## Regarding Buffer.allocUnsafe
+
+Be extra cautious when using `Buffer.allocUnsafe`:
+ * Don't use it if you don't have a good reason to
+   * e.g. you probably won't ever see a performance difference for small buffers, in fact, those
+     might be even faster with `Buffer.alloc()`,
+   * if your code is not in the hot code path — you also probably won't notice a difference,
+   * keep in mind that zero-filling minimizes the potential risks.
+ * If you use it, make sure that you never return the buffer in a partially-filled state,
+   * if you are writing to it sequentially — always truncate it to the actuall written length
+
+Errors in handling buffers allocated with `Buffer.allocUnsafe` could result in various issues,
+ranged from undefined behaviour of your code to sensitive data (user input, passwords, certs)
+leaking to the remote attacker.
+
+_Note that the same applies to `new Buffer` usage without zero-filling, depending on the Node.js
+version (and lacking type checks also adds DoS to the list of potential problems)._
+
+<a id="faq"></a>
+## FAQ
+
+<a id="design-flaws"></a>
+### What is wrong with the `Buffer` constructor?
+
+The `Buffer` constructor could be used to create a buffer in many different ways:
+
+- `new Buffer(42)` creates a `Buffer` of 42 bytes. Before Node.js 8, this buffer contained
+  *arbitrary memory* for performance reasons, which could include anything ranging from
+  program source code to passwords and encryption keys.
+- `new Buffer('abc')` creates a `Buffer` that contains the UTF-8-encoded version of
+  the string `'abc'`. A second argument could specify another encoding: For example,
+  `new Buffer(string, 'base64')` could be used to convert a Base64 string into the original
+  sequence of bytes that it represents.
+- There are several other combinations of arguments.
+
+This meant that, in code like `var buffer = new Buffer(foo);`, *it is not possible to tell
+what exactly the contents of the generated buffer are* without knowing the type of `foo`.
+
+Sometimes, the value of `foo` comes from an external source. For example, this function
+could be exposed as a service on a web server, converting a UTF-8 string into its Base64 form:
+
+```
+function stringToBase64(req, res) {
+  // The request body should have the format of `{ string: 'foobar' }`
+  const rawBytes = new Buffer(req.body.string)
+  const encoded = rawBytes.toString('base64')
+  res.end({ encoded: encoded })
+}
+```
+
+Note that this code does *not* validate the type of `req.body.string`:
+
+- `req.body.string` is expected to be a string. If this is the case, all goes well.
+- `req.body.string` is controlled by the client that sends the request.
+- If `req.body.string` is the *number* `50`, the `rawBytes` would be 50 bytes:
+  - Before Node.js 8, the content would be uninitialized
+  - After Node.js 8, the content would be `50` bytes with the value `0`
+
+Because of the missing type check, an attacker could intentionally send a number
+as part of the request. Using this, they can either:
+
+- Read uninitialized memory. This **will** leak passwords, encryption keys and other
+  kinds of sensitive information. (Information leak)
+- Force the program to allocate a large amount of memory. For example, when specifying
+  `500000000` as the input value, each request will allocate 500MB of memory.
+  This can be used to either exhaust the memory available of a program completely
+  and make it crash, or slow it down significantly. (Denial of Service)
+
+Both of these scenarios are considered serious security issues in a real-world
+web server context.
+
+when using `Buffer.from(req.body.string)` instead, passing a number will always
+throw an exception instead, giving a controlled behaviour that can always be
+handled by the program.
+
+<a id="ecosystem-usage"></a>
+### The `Buffer()` constructor has been deprecated for a while. Is this really an issue?
+
+Surveys of code in the `npm` ecosystem have shown that the `Buffer()` constructor is still
+widely used. This includes new code, and overall usage of such code has actually been
+*increasing*.
diff --git a/backend/node_modules/safer-buffer/Readme.md b/backend/node_modules/safer-buffer/Readme.md
new file mode 100644
index 0000000..14b0822
--- /dev/null
+++ b/backend/node_modules/safer-buffer/Readme.md
@@ -0,0 +1,156 @@
+# safer-buffer [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![javascript style guide][standard-image]][standard-url] [![Security Responsible Disclosure][secuirty-image]][secuirty-url]
+
+[travis-image]: https://travis-ci.org/ChALkeR/safer-buffer.svg?branch=master
+[travis-url]: https://travis-ci.org/ChALkeR/safer-buffer
+[npm-image]: https://img.shields.io/npm/v/safer-buffer.svg
+[npm-url]: https://npmjs.org/package/safer-buffer
+[standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg
+[standard-url]: https://standardjs.com
+[secuirty-image]: https://img.shields.io/badge/Security-Responsible%20Disclosure-green.svg
+[secuirty-url]: https://github.com/nodejs/security-wg/blob/master/processes/responsible_disclosure_template.md
+
+Modern Buffer API polyfill without footguns, working on Node.js from 0.8 to current.
+
+## How to use?
+
+First, port all `Buffer()` and `new Buffer()` calls to `Buffer.alloc()` and `Buffer.from()` API.
+
+Then, to achieve compatibility with outdated Node.js versions (`<4.5.0` and 5.x `<5.9.0`), use
+`const Buffer = require('safer-buffer').Buffer` in all files where you make calls to the new
+Buffer API. _Use `var` instead of `const` if you need that for your Node.js version range support._
+
+Also, see the
+[porting Buffer](https://github.com/ChALkeR/safer-buffer/blob/master/Porting-Buffer.md) guide.
+
+## Do I need it?
+
+Hopefully, not — dropping support for outdated Node.js versions should be fine nowdays, and that
+is the recommended path forward. You _do_ need to port to the `Buffer.alloc()` and `Buffer.from()`
+though.
+
+See the [porting guide](https://github.com/ChALkeR/safer-buffer/blob/master/Porting-Buffer.md)
+for a better description.
+
+## Why not [safe-buffer](https://npmjs.com/safe-buffer)?
+
+_In short: while `safe-buffer` serves as a polyfill for the new API, it allows old API usage and
+itself contains footguns._
+
+`safe-buffer` could be used safely to get the new API while still keeping support for older
+Node.js versions (like this module), but while analyzing ecosystem usage of the old Buffer API
+I found out that `safe-buffer` is itself causing problems in some cases.
+
+For example, consider the following snippet:
+
+```console
+$ cat example.unsafe.js
+console.log(Buffer(20))
+$ ./node-v6.13.0-linux-x64/bin/node example.unsafe.js
+<Buffer 0a 00 00 00 00 00 00 00 28 13 de 02 00 00 00 00 05 00 00 00>
+$ standard example.unsafe.js
+standard: Use JavaScript Standard Style (https://standardjs.com)
+  /home/chalker/repo/safer-buffer/example.unsafe.js:2:13: 'Buffer()' was deprecated since v6. Use 'Buffer.alloc()' or 'Buffer.from()' (use 'https://www.npmjs.com/package/safe-buffer' for '<4.5.0') instead.
+```
+
+This is allocates and writes to console an uninitialized chunk of memory.
+[standard](https://www.npmjs.com/package/standard) linter (among others) catch that and warn people
+to avoid using unsafe API.
+
+Let's now throw in `safe-buffer`!
+
+```console
+$ cat example.safe-buffer.js
+const Buffer = require('safe-buffer').Buffer
+console.log(Buffer(20))
+$ standard example.safe-buffer.js
+$ ./node-v6.13.0-linux-x64/bin/node example.safe-buffer.js
+<Buffer 08 00 00 00 00 00 00 00 28 58 01 82 fe 7f 00 00 00 00 00 00>
+```
+
+See the problem? Adding in `safe-buffer` _magically removes the lint warning_, but the behavior
+remains identiсal to what we had before, and when launched on Node.js 6.x LTS — this dumps out
+chunks of uninitialized memory.
+_And this code will still emit runtime warnings on Node.js 10.x and above._
+
+That was done by design. I first considered changing `safe-buffer`, prohibiting old API usage or
+emitting warnings on it, but that significantly diverges from `safe-buffer` design. After some
+discussion, it was decided to move my approach into a separate package, and _this is that separate
+package_.
+
+This footgun is not imaginary — I observed top-downloaded packages doing that kind of thing,
+«fixing» the lint warning by blindly including `safe-buffer` without any actual changes.
+
+Also in some cases, even if the API _was_ migrated to use of safe Buffer API — a random pull request
+can bring unsafe Buffer API usage back to the codebase by adding new calls — and that could go
+unnoticed even if you have a linter prohibiting that (becase of the reason stated above), and even
+pass CI. _I also observed that being done in popular packages._
+
+Some examples:
+ * [webdriverio](https://github.com/webdriverio/webdriverio/commit/05cbd3167c12e4930f09ef7cf93b127ba4effae4#diff-124380949022817b90b622871837d56cR31)
+   (a module with 548 759 downloads/month),
+ * [websocket-stream](https://github.com/maxogden/websocket-stream/commit/c9312bd24d08271687d76da0fe3c83493871cf61)
+   (218 288 d/m, fix in [maxogden/websocket-stream#142](https://github.com/maxogden/websocket-stream/pull/142)),
+ * [node-serialport](https://github.com/node-serialport/node-serialport/commit/e8d9d2b16c664224920ce1c895199b1ce2def48c)
+   (113 138 d/m, fix in [node-serialport/node-serialport#1510](https://github.com/node-serialport/node-serialport/pull/1510)),
+ * [karma](https://github.com/karma-runner/karma/commit/3d94b8cf18c695104ca195334dc75ff054c74eec)
+   (3 973 193 d/m, fix in [karma-runner/karma#2947](https://github.com/karma-runner/karma/pull/2947)),
+ * [spdy-transport](https://github.com/spdy-http2/spdy-transport/commit/5375ac33f4a62a4f65bcfc2827447d42a5dbe8b1)
+   (5 970 727 d/m, fix in [spdy-http2/spdy-transport#53](https://github.com/spdy-http2/spdy-transport/pull/53)).
+ * And there are a lot more over the ecosystem.
+
+I filed a PR at
+[mysticatea/eslint-plugin-node#110](https://github.com/mysticatea/eslint-plugin-node/pull/110) to
+partially fix that (for cases when that lint rule is used), but it is a semver-major change for
+linter rules and presets, so it would take significant time for that to reach actual setups.
+_It also hasn't been released yet (2018-03-20)._
+
+Also, `safer-buffer` discourages the usage of `.allocUnsafe()`, which is often done by a mistake.
+It still supports it with an explicit concern barier, by placing it under
+`require('safer-buffer/dangereous')`.
+
+## But isn't throwing bad?
+
+Not really. It's an error that could be noticed and fixed early, instead of causing havoc later like
+unguarded `new Buffer()` calls that end up receiving user input can do.
+
+This package affects only the files where `var Buffer = require('safer-buffer').Buffer` was done, so
+it is really simple to keep track of things and make sure that you don't mix old API usage with that.
+Also, CI should hint anything that you might have missed.
+
+New commits, if tested, won't land new usage of unsafe Buffer API this way.
+_Node.js 10.x also deals with that by printing a runtime depecation warning._
+
+### Would it affect third-party modules?
+
+No, unless you explicitly do an awful thing like monkey-patching or overriding the built-in `Buffer`.
+Don't do that.
+
+### But I don't want throwing…
+
+That is also fine!
+
+Also, it could be better in some cases when you don't comprehensive enough test coverage.
+
+In that case — just don't override `Buffer` and use
+`var SaferBuffer = require('safer-buffer').Buffer` instead.
+
+That way, everything using `Buffer` natively would still work, but there would be two drawbacks:
+
+* `Buffer.from`/`Buffer.alloc` won't be polyfilled — use `SaferBuffer.from` and
+  `SaferBuffer.alloc` instead.
+* You are still open to accidentally using the insecure deprecated API — use a linter to catch that.
+
+Note that using a linter to catch accidential `Buffer` constructor usage in this case is strongly
+recommended. `Buffer` is not overriden in this usecase, so linters won't get confused.
+
+## «Without footguns»?
+
+Well, it is still possible to do _some_ things with `Buffer` API, e.g. accessing `.buffer` property
+on older versions and duping things from there. You shouldn't do that in your code, probabably.
+
+The intention is to remove the most significant footguns that affect lots of packages in the
+ecosystem, and to do it in the proper way.
+
+Also, this package doesn't protect against security issues affecting some Node.js versions, so for
+usage in your own production code, it is still recommended to update to a Node.js version
+[supported by upstream](https://github.com/nodejs/release#release-schedule).
diff --git a/backend/node_modules/safer-buffer/dangerous.js b/backend/node_modules/safer-buffer/dangerous.js
new file mode 100644
index 0000000..ca41fdc
--- /dev/null
+++ b/backend/node_modules/safer-buffer/dangerous.js
@@ -0,0 +1,58 @@
+/* eslint-disable node/no-deprecated-api */
+
+'use strict'
+
+var buffer = require('buffer')
+var Buffer = buffer.Buffer
+var safer = require('./safer.js')
+var Safer = safer.Buffer
+
+var dangerous = {}
+
+var key
+
+for (key in safer) {
+  if (!safer.hasOwnProperty(key)) continue
+  dangerous[key] = safer[key]
+}
+
+var Dangereous = dangerous.Buffer = {}
+
+// Copy Safer API
+for (key in Safer) {
+  if (!Safer.hasOwnProperty(key)) continue
+  Dangereous[key] = Safer[key]
+}
+
+// Copy those missing unsafe methods, if they are present
+for (key in Buffer) {
+  if (!Buffer.hasOwnProperty(key)) continue
+  if (Dangereous.hasOwnProperty(key)) continue
+  Dangereous[key] = Buffer[key]
+}
+
+if (!Dangereous.allocUnsafe) {
+  Dangereous.allocUnsafe = function (size) {
+    if (typeof size !== 'number') {
+      throw new TypeError('The "size" argument must be of type number. Received type ' + typeof size)
+    }
+    if (size < 0 || size >= 2 * (1 << 30)) {
+      throw new RangeError('The value "' + size + '" is invalid for option "size"')
+    }
+    return Buffer(size)
+  }
+}
+
+if (!Dangereous.allocUnsafeSlow) {
+  Dangereous.allocUnsafeSlow = function (size) {
+    if (typeof size !== 'number') {
+      throw new TypeError('The "size" argument must be of type number. Received type ' + typeof size)
+    }
+    if (size < 0 || size >= 2 * (1 << 30)) {
+      throw new RangeError('The value "' + size + '" is invalid for option "size"')
+    }
+    return buffer.SlowBuffer(size)
+  }
+}
+
+module.exports = dangerous
diff --git a/backend/node_modules/safer-buffer/package.json b/backend/node_modules/safer-buffer/package.json
new file mode 100644
index 0000000..d452b04
--- /dev/null
+++ b/backend/node_modules/safer-buffer/package.json
@@ -0,0 +1,34 @@
+{
+  "name": "safer-buffer",
+  "version": "2.1.2",
+  "description": "Modern Buffer API polyfill without footguns",
+  "main": "safer.js",
+  "scripts": {
+    "browserify-test": "browserify --external tape tests.js > browserify-tests.js && tape browserify-tests.js",
+    "test": "standard && tape tests.js"
+  },
+  "author": {
+    "name": "Nikita Skovoroda",
+    "email": "chalkerx@gmail.com",
+    "url": "https://github.com/ChALkeR"
+  },
+  "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/ChALkeR/safer-buffer.git"
+  },
+  "bugs": {
+    "url": "https://github.com/ChALkeR/safer-buffer/issues"
+  },
+  "devDependencies": {
+    "standard": "^11.0.1",
+    "tape": "^4.9.0"
+  },
+  "files": [
+    "Porting-Buffer.md",
+    "Readme.md",
+    "tests.js",
+    "dangerous.js",
+    "safer.js"
+  ]
+}
diff --git a/backend/node_modules/safer-buffer/safer.js b/backend/node_modules/safer-buffer/safer.js
new file mode 100644
index 0000000..37c7e1a
--- /dev/null
+++ b/backend/node_modules/safer-buffer/safer.js
@@ -0,0 +1,77 @@
+/* eslint-disable node/no-deprecated-api */
+
+'use strict'
+
+var buffer = require('buffer')
+var Buffer = buffer.Buffer
+
+var safer = {}
+
+var key
+
+for (key in buffer) {
+  if (!buffer.hasOwnProperty(key)) continue
+  if (key === 'SlowBuffer' || key === 'Buffer') continue
+  safer[key] = buffer[key]
+}
+
+var Safer = safer.Buffer = {}
+for (key in Buffer) {
+  if (!Buffer.hasOwnProperty(key)) continue
+  if (key === 'allocUnsafe' || key === 'allocUnsafeSlow') continue
+  Safer[key] = Buffer[key]
+}
+
+safer.Buffer.prototype = Buffer.prototype
+
+if (!Safer.from || Safer.from === Uint8Array.from) {
+  Safer.from = function (value, encodingOrOffset, length) {
+    if (typeof value === 'number') {
+      throw new TypeError('The "value" argument must not be of type number. Received type ' + typeof value)
+    }
+    if (value && typeof value.length === 'undefined') {
+      throw new TypeError('The first argument must be one of type string, Buffer, ArrayBuffer, Array, or Array-like Object. Received type ' + typeof value)
+    }
+    return Buffer(value, encodingOrOffset, length)
+  }
+}
+
+if (!Safer.alloc) {
+  Safer.alloc = function (size, fill, encoding) {
+    if (typeof size !== 'number') {
+      throw new TypeError('The "size" argument must be of type number. Received type ' + typeof size)
+    }
+    if (size < 0 || size >= 2 * (1 << 30)) {
+      throw new RangeError('The value "' + size + '" is invalid for option "size"')
+    }
+    var buf = Buffer(size)
+    if (!fill || fill.length === 0) {
+      buf.fill(0)
+    } else if (typeof encoding === 'string') {
+      buf.fill(fill, encoding)
+    } else {
+      buf.fill(fill)
+    }
+    return buf
+  }
+}
+
+if (!safer.kStringMaxLength) {
+  try {
+    safer.kStringMaxLength = process.binding('buffer').kStringMaxLength
+  } catch (e) {
+    // we can't determine kStringMaxLength in environments where process.binding
+    // is unsupported, so let's not set it
+  }
+}
+
+if (!safer.constants) {
+  safer.constants = {
+    MAX_LENGTH: safer.kMaxLength
+  }
+  if (safer.kStringMaxLength) {
+    safer.constants.MAX_STRING_LENGTH = safer.kStringMaxLength
+  }
+}
+
+module.exports = safer
diff --git a/backend/node_modules/safer-buffer/tests.js b/backend/node_modules/safer-buffer/tests.js
new file mode 100644
index 0000000..7ed2777
--- /dev/null
+++ b/backend/node_modules/safer-buffer/tests.js
@@ -0,0 +1,406 @@
+/* eslint-disable node/no-deprecated-api */
+
+'use strict'
+
+var test = require('tape')
+
+var buffer = require('buffer')
+
+var index = require('./')
+var safer = require('./safer')
+var dangerous = require('./dangerous')
+
+/* Inheritance tests */
+
+test('Default is Safer', function (t) {
+  t.equal(index, safer)
+  t.notEqual(safer, dangerous)
+  t.notEqual(index, dangerous)
+  t.end()
+})
+
+test('Is not a function', function (t) {
+  [index, safer, dangerous].forEach(function (impl) {
+    t.equal(typeof impl, 'object')
+    t.equal(typeof impl.Buffer, 'object')
+  });
+  [buffer].forEach(function (impl) {
+    t.equal(typeof impl, 'object')
+    t.equal(typeof impl.Buffer, 'function')
+  })
+  t.end()
+})
+
+test('Constructor throws', function (t) {
+  [index, safer, dangerous].forEach(function (impl) {
+    t.throws(function () { impl.Buffer() })
+    t.throws(function () { impl.Buffer(0) })
+    t.throws(function () { impl.Buffer('a') })
+    t.throws(function () { impl.Buffer('a', 'utf-8') })
+    t.throws(function () { return new impl.Buffer() })
+    t.throws(function () { return new impl.Buffer(0) })
+    t.throws(function () { return new impl.Buffer('a') })
+    t.throws(function () { return new impl.Buffer('a', 'utf-8') })
+  })
+  t.end()
+})
+
+test('Safe methods exist', function (t) {
+  [index, safer, dangerous].forEach(function (impl) {
+    t.equal(typeof impl.Buffer.alloc, 'function', 'alloc')
+    t.equal(typeof impl.Buffer.from, 'function', 'from')
+  })
+  t.end()
+})
+
+test('Unsafe methods exist only in Dangerous', function (t) {
+  [index, safer].forEach(function (impl) {
+    t.equal(typeof impl.Buffer.allocUnsafe, 'undefined')
+    t.equal(typeof impl.Buffer.allocUnsafeSlow, 'undefined')
+  });
+  [dangerous].forEach(function (impl) {
+    t.equal(typeof impl.Buffer.allocUnsafe, 'function')
+    t.equal(typeof impl.Buffer.allocUnsafeSlow, 'function')
+  })
+  t.end()
+})
+
+test('Generic methods/properties are defined and equal', function (t) {
+  ['poolSize', 'isBuffer', 'concat', 'byteLength'].forEach(function (method) {
+    [index, safer, dangerous].forEach(function (impl) {
+      t.equal(impl.Buffer[method], buffer.Buffer[method], method)
+      t.notEqual(typeof impl.Buffer[method], 'undefined', method)
+    })
+  })
+  t.end()
+})
+
+test('Built-in buffer static methods/properties are inherited', function (t) {
+  Object.keys(buffer).forEach(function (method) {
+    if (method === 'SlowBuffer' || method === 'Buffer') return;
+    [index, safer, dangerous].forEach(function (impl) {
+      t.equal(impl[method], buffer[method], method)
+      t.notEqual(typeof impl[method], 'undefined', method)
+    })
+  })
+  t.end()
+})
+
+test('Built-in Buffer static methods/properties are inherited', function (t) {
+  Object.keys(buffer.Buffer).forEach(function (method) {
+    if (method === 'allocUnsafe' || method === 'allocUnsafeSlow') return;
+    [index, safer, dangerous].forEach(function (impl) {
+      t.equal(impl.Buffer[method], buffer.Buffer[method], method)
+      t.notEqual(typeof impl.Buffer[method], 'undefined', method)
+    })
+  })
+  t.end()
+})
+
+test('.prototype property of Buffer is inherited', function (t) {
+  [index, safer, dangerous].forEach(function (impl) {
+    t.equal(impl.Buffer.prototype, buffer.Buffer.prototype, 'prototype')
+    t.notEqual(typeof impl.Buffer.prototype, 'undefined', 'prototype')
+  })
+  t.end()
+})
+
+test('All Safer methods are present in Dangerous', function (t) {
+  Object.keys(safer).forEach(function (method) {
+    if (method === 'Buffer') return;
+    [index, safer, dangerous].forEach(function (impl) {
+      t.equal(impl[method], safer[method], method)
+      if (method !== 'kStringMaxLength') {
+        t.notEqual(typeof impl[method], 'undefined', method)
+      }
+    })
+  })
+  Object.keys(safer.Buffer).forEach(function (method) {
+    [index, safer, dangerous].forEach(function (impl) {
+      t.equal(impl.Buffer[method], safer.Buffer[method], method)
+      t.notEqual(typeof impl.Buffer[method], 'undefined', method)
+    })
+  })
+  t.end()
+})
+
+test('Safe methods from Dangerous methods are present in Safer', function (t) {
+  Object.keys(dangerous).forEach(function (method) {
+    if (method === 'Buffer') return;
+    [index, safer, dangerous].forEach(function (impl) {
+      t.equal(impl[method], dangerous[method], method)
+      if (method !== 'kStringMaxLength') {
+        t.notEqual(typeof impl[method], 'undefined', method)
+      }
+    })
+  })
+  Object.keys(dangerous.Buffer).forEach(function (method) {
+    if (method === 'allocUnsafe' || method === 'allocUnsafeSlow') return;
+    [index, safer, dangerous].forEach(function (impl) {
+      t.equal(impl.Buffer[method], dangerous.Buffer[method], method)
+      t.notEqual(typeof impl.Buffer[method], 'undefined', method)
+    })
+  })
+  t.end()
+})
+
+/* Behaviour tests */
+
+test('Methods return Buffers', function (t) {
+  [index, safer, dangerous].forEach(function (impl) {
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(0)))
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(0, 10)))
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(0, 'a')))
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(10)))
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(10, 'x')))
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(9, 'ab')))
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from('')))
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from('string')))
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from('string', 'utf-8')))
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64')))
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from([0, 42, 3])))
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from(new Uint8Array([0, 42, 3]))))
+    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from([])))
+  });
+  ['allocUnsafe', 'allocUnsafeSlow'].forEach(function (method) {
+    t.ok(buffer.Buffer.isBuffer(dangerous.Buffer[method](0)))
+    t.ok(buffer.Buffer.isBuffer(dangerous.Buffer[method](10)))
+  })
+  t.end()
+})
+
+test('Constructor is buffer.Buffer', function (t) {
+  [index, safer, dangerous].forEach(function (impl) {
+    t.equal(impl.Buffer.alloc(0).constructor, buffer.Buffer)
+    t.equal(impl.Buffer.alloc(0, 10).constructor, buffer.Buffer)
+    t.equal(impl.Buffer.alloc(0, 'a').constructor, buffer.Buffer)
+    t.equal(impl.Buffer.alloc(10).constructor, buffer.Buffer)
+    t.equal(impl.Buffer.alloc(10, 'x').constructor, buffer.Buffer)
+    t.equal(impl.Buffer.alloc(9, 'ab').constructor, buffer.Buffer)
+    t.equal(impl.Buffer.from('').constructor, buffer.Buffer)
+    t.equal(impl.Buffer.from('string').constructor, buffer.Buffer)
+    t.equal(impl.Buffer.from('string', 'utf-8').constructor, buffer.Buffer)
+    t.equal(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64').constructor, buffer.Buffer)
+    t.equal(impl.Buffer.from([0, 42, 3]).constructor, buffer.Buffer)
+    t.equal(impl.Buffer.from(new Uint8Array([0, 42, 3])).constructor, buffer.Buffer)
+    t.equal(impl.Buffer.from([]).constructor, buffer.Buffer)
+  });
+  [0, 10, 100].forEach(function (arg) {
+    t.equal(dangerous.Buffer.allocUnsafe(arg).constructor, buffer.Buffer)
+    t.equal(dangerous.Buffer.allocUnsafeSlow(arg).constructor, buffer.SlowBuffer(0).constructor)
+  })
+  t.end()
+})
+
+test('Invalid calls throw', function (t) {
+  [index, safer, dangerous].forEach(function (impl) {
+    t.throws(function () { impl.Buffer.from(0) })
+    t.throws(function () { impl.Buffer.from(10) })
+    t.throws(function () { impl.Buffer.from(10, 'utf-8') })
+    t.throws(function () { impl.Buffer.from('string', 'invalid encoding') })
+    t.throws(function () { impl.Buffer.from(-10) })
+    t.throws(function () { impl.Buffer.from(1e90) })
+    t.throws(function () { impl.Buffer.from(Infinity) })
+    t.throws(function () { impl.Buffer.from(-Infinity) })
+    t.throws(function () { impl.Buffer.from(NaN) })
+    t.throws(function () { impl.Buffer.from(null) })
+    t.throws(function () { impl.Buffer.from(undefined) })
+    t.throws(function () { impl.Buffer.from() })
+    t.throws(function () { impl.Buffer.from({}) })
+    t.throws(function () { impl.Buffer.alloc('') })
+    t.throws(function () { impl.Buffer.alloc('string') })
+    t.throws(function () { impl.Buffer.alloc('string', 'utf-8') })
+    t.throws(function () { impl.Buffer.alloc('b25ldHdvdGhyZWU=', 'base64') })
+    t.throws(function () { impl.Buffer.alloc(-10) })
+    t.throws(function () { impl.Buffer.alloc(1e90) })
+    t.throws(function () { impl.Buffer.alloc(2 * (1 << 30)) })
+    t.throws(function () { impl.Buffer.alloc(Infinity) })
+    t.throws(function () { impl.Buffer.alloc(-Infinity) })
+    t.throws(function () { impl.Buffer.alloc(null) })
+    t.throws(function () { impl.Buffer.alloc(undefined) })
+    t.throws(function () { impl.Buffer.alloc() })
+    t.throws(function () { impl.Buffer.alloc([]) })
+    t.throws(function () { impl.Buffer.alloc([0, 42, 3]) })
+    t.throws(function () { impl.Buffer.alloc({}) })
+  });
+  ['allocUnsafe', 'allocUnsafeSlow'].forEach(function (method) {
+    t.throws(function () { dangerous.Buffer[method]('') })
+    t.throws(function () { dangerous.Buffer[method]('string') })
+    t.throws(function () { dangerous.Buffer[method]('string', 'utf-8') })
+    t.throws(function () { dangerous.Buffer[method](2 * (1 << 30)) })
+    t.throws(function () { dangerous.Buffer[method](Infinity) })
+    if (dangerous.Buffer[method] === buffer.Buffer.allocUnsafe) {
+      t.skip('Skipping, older impl of allocUnsafe coerced negative sizes to 0')
+    } else {
+      t.throws(function () { dangerous.Buffer[method](-10) })
+      t.throws(function () { dangerous.Buffer[method](-1e90) })
+      t.throws(function () { dangerous.Buffer[method](-Infinity) })
+    }
+    t.throws(function () { dangerous.Buffer[method](null) })
+    t.throws(function () { dangerous.Buffer[method](undefined) })
+    t.throws(function () { dangerous.Buffer[method]() })
+    t.throws(function () { dangerous.Buffer[method]([]) })
+    t.throws(function () { dangerous.Buffer[method]([0, 42, 3]) })
+    t.throws(function () { dangerous.Buffer[method]({}) })
+  })
+  t.end()
+})
+
+test('Buffers have appropriate lengths', function (t) {
+  [index, safer, dangerous].forEach(function (impl) {
+    t.equal(impl.Buffer.alloc(0).length, 0)
+    t.equal(impl.Buffer.alloc(10).length, 10)
+    t.equal(impl.Buffer.from('').length, 0)
+    t.equal(impl.Buffer.from('string').length, 6)
+    t.equal(impl.Buffer.from('string', 'utf-8').length, 6)
+    t.equal(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64').length, 11)
+    t.equal(impl.Buffer.from([0, 42, 3]).length, 3)
+    t.equal(impl.Buffer.from(new Uint8Array([0, 42, 3])).length, 3)
+    t.equal(impl.Buffer.from([]).length, 0)
+  });
+  ['allocUnsafe', 'allocUnsafeSlow'].forEach(function (method) {
+    t.equal(dangerous.Buffer[method](0).length, 0)
+    t.equal(dangerous.Buffer[method](10).length, 10)
+  })
+  t.end()
+})
+
+test('Buffers have appropriate lengths (2)', function (t) {
+  t.equal(index.Buffer.alloc, safer.Buffer.alloc)
+  t.equal(index.Buffer.alloc, dangerous.Buffer.alloc)
+  var ok = true;
+  [ safer.Buffer.alloc,
+    dangerous.Buffer.allocUnsafe,
+    dangerous.Buffer.allocUnsafeSlow
+  ].forEach(function (method) {
+    for (var i = 0; i < 1e2; i++) {
+      var length = Math.round(Math.random() * 1e5)
+      var buf = method(length)
+      if (!buffer.Buffer.isBuffer(buf)) ok = false
+      if (buf.length !== length) ok = false
+    }
+  })
+  t.ok(ok)
+  t.end()
+})
+
+test('.alloc(size) is zero-filled and has correct length', function (t) {
+  t.equal(index.Buffer.alloc, safer.Buffer.alloc)
+  t.equal(index.Buffer.alloc, dangerous.Buffer.alloc)
+  var ok = true
+  for (var i = 0; i < 1e2; i++) {
+    var length = Math.round(Math.random() * 2e6)
+    var buf = index.Buffer.alloc(length)
+    if (!buffer.Buffer.isBuffer(buf)) ok = false
+    if (buf.length !== length) ok = false
+    var j
+    for (j = 0; j < length; j++) {
+      if (buf[j] !== 0) ok = false
+    }
+    buf.fill(1)
+    for (j = 0; j < length; j++) {
+      if (buf[j] !== 1) ok = false
+    }
+  }
+  t.ok(ok)
+  t.end()
+})
+
+test('.allocUnsafe / .allocUnsafeSlow are fillable and have correct lengths', function (t) {
+  ['allocUnsafe', 'allocUnsafeSlow'].forEach(function (method) {
+    var ok = true
+    for (var i = 0; i < 1e2; i++) {
+      var length = Math.round(Math.random() * 2e6)
+      var buf = dangerous.Buffer[method](length)
+      if (!buffer.Buffer.isBuffer(buf)) ok = false
+      if (buf.length !== length) ok = false
+      buf.fill(0, 0, length)
+      var j
+      for (j = 0; j < length; j++) {
+        if (buf[j] !== 0) ok = false
+      }
+      buf.fill(1, 0, length)
+      for (j = 0; j < length; j++) {
+        if (buf[j] !== 1) ok = false
+      }
+    }
+    t.ok(ok, method)
+  })
+  t.end()
+})
+
+test('.alloc(size, fill) is `fill`-filled', function (t) {
+  t.equal(index.Buffer.alloc, safer.Buffer.alloc)
+  t.equal(index.Buffer.alloc, dangerous.Buffer.alloc)
+  var ok = true
+  for (var i = 0; i < 1e2; i++) {
+    var length = Math.round(Math.random() * 2e6)
+    var fill = Math.round(Math.random() * 255)
+    var buf = index.Buffer.alloc(length, fill)
+    if (!buffer.Buffer.isBuffer(buf)) ok = false
+    if (buf.length !== length) ok = false
+    for (var j = 0; j < length; j++) {
+      if (buf[j] !== fill) ok = false
+    }
+  }
+  t.ok(ok)
+  t.end()
+})
+
+test('.alloc(size, fill) is `fill`-filled', function (t) {
+  t.equal(index.Buffer.alloc, safer.Buffer.alloc)
+  t.equal(index.Buffer.alloc, dangerous.Buffer.alloc)
+  var ok = true
+  for (var i = 0; i < 1e2; i++) {
+    var length = Math.round(Math.random() * 2e6)
+    var fill = Math.round(Math.random() * 255)
+    var buf = index.Buffer.alloc(length, fill)
+    if (!buffer.Buffer.isBuffer(buf)) ok = false
+    if (buf.length !== length) ok = false
+    for (var j = 0; j < length; j++) {
+      if (buf[j] !== fill) ok = false
+    }
+  }
+  t.ok(ok)
+  t.deepEqual(index.Buffer.alloc(9, 'a'), index.Buffer.alloc(9, 97))
+  t.notDeepEqual(index.Buffer.alloc(9, 'a'), index.Buffer.alloc(9, 98))
+
+  var tmp = new buffer.Buffer(2)
+  tmp.fill('ok')
+  if (tmp[1] === tmp[0]) {
+    // Outdated Node.js
+    t.deepEqual(index.Buffer.alloc(5, 'ok'), index.Buffer.from('ooooo'))
+  } else {
+    t.deepEqual(index.Buffer.alloc(5, 'ok'), index.Buffer.from('okoko'))
+  }
+  t.notDeepEqual(index.Buffer.alloc(5, 'ok'), index.Buffer.from('kokok'))
+
+  t.end()
+})
+
+test('safer.Buffer.from returns results same as Buffer constructor', function (t) {
+  [index, safer, dangerous].forEach(function (impl) {
+    t.deepEqual(impl.Buffer.from(''), new buffer.Buffer(''))
+    t.deepEqual(impl.Buffer.from('string'), new buffer.Buffer('string'))
+    t.deepEqual(impl.Buffer.from('string', 'utf-8'), new buffer.Buffer('string', 'utf-8'))
+    t.deepEqual(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64'), new buffer.Buffer('b25ldHdvdGhyZWU=', 'base64'))
+    t.deepEqual(impl.Buffer.from([0, 42, 3]), new buffer.Buffer([0, 42, 3]))
+    t.deepEqual(impl.Buffer.from(new Uint8Array([0, 42, 3])), new buffer.Buffer(new Uint8Array([0, 42, 3])))
+    t.deepEqual(impl.Buffer.from([]), new buffer.Buffer([]))
+  })
+  t.end()
+})
+
+test('safer.Buffer.from returns consistent results', function (t) {
+  [index, safer, dangerous].forEach(function (impl) {
+    t.deepEqual(impl.Buffer.from(''), impl.Buffer.alloc(0))
+    t.deepEqual(impl.Buffer.from([]), impl.Buffer.alloc(0))
+    t.deepEqual(impl.Buffer.from(new Uint8Array([])), impl.Buffer.alloc(0))
+    t.deepEqual(impl.Buffer.from('string', 'utf-8'), impl.Buffer.from('string'))
+    t.deepEqual(impl.Buffer.from('string'), impl.Buffer.from([115, 116, 114, 105, 110, 103]))
+    t.deepEqual(impl.Buffer.from('string'), impl.Buffer.from(impl.Buffer.from('string')))
+    t.deepEqual(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64'), impl.Buffer.from('onetwothree'))
+    t.notDeepEqual(impl.Buffer.from('b25ldHdvdGhyZWU='), impl.Buffer.from('onetwothree'))
+  })
+  t.end()
+})
diff --git a/backend/node_modules/send/HISTORY.md b/backend/node_modules/send/HISTORY.md
new file mode 100644
index 0000000..0dd29d0
--- /dev/null
+++ b/backend/node_modules/send/HISTORY.md
@@ -0,0 +1,526 @@
+0.19.0 / 2024-09-10
+===================
+
+* Remove link renderization in html while redirecting
+
+0.18.0 / 2022-03-23
+===================
+
+  * Fix emitted 416 error missing headers property
+  * Limit the headers removed for 304 response
+  * deps: depd@2.0.0
+    - Replace internal `eval` usage with `Function` constructor
+    - Use instance methods on `process` to check for listeners
+  * deps: destroy@1.2.0
+  * deps: http-errors@2.0.0
+    - deps: depd@2.0.0
+    - deps: statuses@2.0.1
+  * deps: on-finished@2.4.1
+  * deps: statuses@2.0.1
+
+0.17.2 / 2021-12-11
+===================
+
+  * pref: ignore empty http tokens
+  * deps: http-errors@1.8.1
+    - deps: inherits@2.0.4
+    - deps: toidentifier@1.0.1
+    - deps: setprototypeof@1.2.0
+  * deps: ms@2.1.3
+
+0.17.1 / 2019-05-10
+===================
+
+  * Set stricter CSP header in redirect & error responses
+  * deps: range-parser@~1.2.1
+
+0.17.0 / 2019-05-03
+===================
+
+  * deps: http-errors@~1.7.2
+    - Set constructor name when possible
+    - Use `toidentifier` module to make class names
+    - deps: depd@~1.1.2
+    - deps: setprototypeof@1.1.1
+    - deps: statuses@'>= 1.5.0 < 2'
+  * deps: mime@1.6.0
+    - Add extensions for JPEG-2000 images
+    - Add new `font/*` types from IANA
+    - Add WASM mapping
+    - Update `.bdoc` to `application/bdoc`
+    - Update `.bmp` to `image/bmp`
+    - Update `.m4a` to `audio/mp4`
+    - Update `.rtf` to `application/rtf`
+    - Update `.wav` to `audio/wav`
+    - Update `.xml` to `application/xml`
+    - Update generic extensions to `application/octet-stream`:
+      `.deb`, `.dll`, `.dmg`, `.exe`, `.iso`, `.msi`
+    - Use mime-score module to resolve extension conflicts
+  * deps: ms@2.1.1
+    - Add `week`/`w` support
+    - Fix negative number handling
+  * deps: statuses@~1.5.0
+  * perf: remove redundant `path.normalize` call
+
+0.16.2 / 2018-02-07
+===================
+
+  * Fix incorrect end tag in default error & redirects
+  * deps: depd@~1.1.2
+    - perf: remove argument reassignment
+  * deps: encodeurl@~1.0.2
+    - Fix encoding `%` as last character
+  * deps: statuses@~1.4.0
+
+0.16.1 / 2017-09-29
+===================
+
+  * Fix regression in edge-case behavior for empty `path`
+
+0.16.0 / 2017-09-27
+===================
+
+  * Add `immutable` option
+  * Fix missing `</html>` in default error & redirects
+  * Use instance methods on steam to check for listeners
+  * deps: mime@1.4.1
+    - Add 70 new types for file extensions
+    - Set charset as "UTF-8" for .js and .json
+  * perf: improve path validation speed
+
+0.15.6 / 2017-09-22
+===================
+
+  * deps: debug@2.6.9
+  * perf: improve `If-Match` token parsing
+
+0.15.5 / 2017-09-20
+===================
+
+  * deps: etag@~1.8.1
+    - perf: replace regular expression with substring
+  * deps: fresh@0.5.2
+    - Fix handling of modified headers with invalid dates
+    - perf: improve ETag match loop
+    - perf: improve `If-None-Match` token parsing
+
+0.15.4 / 2017-08-05
+===================
+
+  * deps: debug@2.6.8
+  * deps: depd@~1.1.1
+    - Remove unnecessary `Buffer` loading
+  * deps: http-errors@~1.6.2
+    - deps: depd@1.1.1
+
+0.15.3 / 2017-05-16
+===================
+
+  * deps: debug@2.6.7
+    - deps: ms@2.0.0
+  * deps: ms@2.0.0
+
+0.15.2 / 2017-04-26
+===================
+
+  * deps: debug@2.6.4
+    - Fix `DEBUG_MAX_ARRAY_LENGTH`
+    - deps: ms@0.7.3
+  * deps: ms@1.0.0
+
+0.15.1 / 2017-03-04
+===================
+
+  * Fix issue when `Date.parse` does not return `NaN` on invalid date
+  * Fix strict violation in broken environments
+
+0.15.0 / 2017-02-25
+===================
+
+  * Support `If-Match` and `If-Unmodified-Since` headers
+  * Add `res` and `path` arguments to `directory` event
+  * Remove usage of `res._headers` private field
+    - Improves compatibility with Node.js 8 nightly
+  * Send complete HTML document in redirect & error responses
+  * Set default CSP header in redirect & error responses
+  * Use `res.getHeaderNames()` when available
+  * Use `res.headersSent` when available
+  * deps: debug@2.6.1
+    - Allow colors in workers
+    - Deprecated `DEBUG_FD` environment variable set to `3` or higher
+    - Fix error when running under React Native
+    - Use same color for same namespace
+    - deps: ms@0.7.2
+  * deps: etag@~1.8.0
+  * deps: fresh@0.5.0
+    - Fix false detection of `no-cache` request directive
+    - Fix incorrect result when `If-None-Match` has both `*` and ETags
+    - Fix weak `ETag` matching to match spec
+    - perf: delay reading header values until needed
+    - perf: enable strict mode
+    - perf: hoist regular expressions
+    - perf: remove duplicate conditional
+    - perf: remove unnecessary boolean coercions
+    - perf: skip checking modified time if ETag check failed
+    - perf: skip parsing `If-None-Match` when no `ETag` header
+    - perf: use `Date.parse` instead of `new Date`
+  * deps: http-errors@~1.6.1
+    - Make `message` property enumerable for `HttpError`s
+    - deps: setprototypeof@1.0.3
+
+0.14.2 / 2017-01-23
+===================
+
+  * deps: http-errors@~1.5.1
+    - deps: inherits@2.0.3
+    - deps: setprototypeof@1.0.2
+    - deps: statuses@'>= 1.3.1 < 2'
+  * deps: ms@0.7.2
+  * deps: statuses@~1.3.1
+
+0.14.1 / 2016-06-09
+===================
+
+  * Fix redirect error when `path` contains raw non-URL characters
+  * Fix redirect when `path` starts with multiple forward slashes
+
+0.14.0 / 2016-06-06
+===================
+
+  * Add `acceptRanges` option
+  * Add `cacheControl` option
+  * Attempt to combine multiple ranges into single range
+  * Correctly inherit from `Stream` class
+  * Fix `Content-Range` header in 416 responses when using `start`/`end` options
+  * Fix `Content-Range` header missing from default 416 responses
+  * Ignore non-byte `Range` headers
+  * deps: http-errors@~1.5.0
+    - Add `HttpError` export, for `err instanceof createError.HttpError`
+    - Support new code `421 Misdirected Request`
+    - Use `setprototypeof` module to replace `__proto__` setting
+    - deps: inherits@2.0.1
+    - deps: statuses@'>= 1.3.0 < 2'
+    - perf: enable strict mode
+  * deps: range-parser@~1.2.0
+    - Fix incorrectly returning -1 when there is at least one valid range
+    - perf: remove internal function
+  * deps: statuses@~1.3.0
+    - Add `421 Misdirected Request`
+    - perf: enable strict mode
+  * perf: remove argument reassignment
+
+0.13.2 / 2016-03-05
+===================
+
+  * Fix invalid `Content-Type` header when `send.mime.default_type` unset
+
+0.13.1 / 2016-01-16
+===================
+
+  * deps: depd@~1.1.0
+    - Support web browser loading
+    - perf: enable strict mode
+  * deps: destroy@~1.0.4
+    - perf: enable strict mode
+  * deps: escape-html@~1.0.3
+    - perf: enable strict mode
+    - perf: optimize string replacement
+    - perf: use faster string coercion
+  * deps: range-parser@~1.0.3
+    - perf: enable strict mode
+
+0.13.0 / 2015-06-16
+===================
+
+  * Allow Node.js HTTP server to set `Date` response header
+  * Fix incorrectly removing `Content-Location` on 304 response
+  * Improve the default redirect response headers
+  * Send appropriate headers on default error response
+  * Use `http-errors` for standard emitted errors
+  * Use `statuses` instead of `http` module for status messages
+  * deps: escape-html@1.0.2
+  * deps: etag@~1.7.0
+    - Improve stat performance by removing hashing
+  * deps: fresh@0.3.0
+    - Add weak `ETag` matching support
+  * deps: on-finished@~2.3.0
+    - Add defined behavior for HTTP `CONNECT` requests
+    - Add defined behavior for HTTP `Upgrade` requests
+    - deps: ee-first@1.1.1
+  * perf: enable strict mode
+  * perf: remove unnecessary array allocations
+
+0.12.3 / 2015-05-13
+===================
+
+  * deps: debug@~2.2.0
+    - deps: ms@0.7.1
+  * deps: depd@~1.0.1
+  * deps: etag@~1.6.0
+   - Improve support for JXcore
+   - Support "fake" stats objects in environments without `fs`
+  * deps: ms@0.7.1
+    - Prevent extraordinarily long inputs
+  * deps: on-finished@~2.2.1
+
+0.12.2 / 2015-03-13
+===================
+
+  * Throw errors early for invalid `extensions` or `index` options
+  * deps: debug@~2.1.3
+    - Fix high intensity foreground color for bold
+    - deps: ms@0.7.0
+
+0.12.1 / 2015-02-17
+===================
+
+  * Fix regression sending zero-length files
+
+0.12.0 / 2015-02-16
+===================
+
+  * Always read the stat size from the file
+  * Fix mutating passed-in `options`
+  * deps: mime@1.3.4
+
+0.11.1 / 2015-01-20
+===================
+
+  * Fix `root` path disclosure
+
+0.11.0 / 2015-01-05
+===================
+
+  * deps: debug@~2.1.1
+  * deps: etag@~1.5.1
+    - deps: crc@3.2.1
+  * deps: ms@0.7.0
+    - Add `milliseconds`
+    - Add `msecs`
+    - Add `secs`
+    - Add `mins`
+    - Add `hrs`
+    - Add `yrs`
+  * deps: on-finished@~2.2.0
+
+0.10.1 / 2014-10-22
+===================
+
+  * deps: on-finished@~2.1.1
+    - Fix handling of pipelined requests
+
+0.10.0 / 2014-10-15
+===================
+
+  * deps: debug@~2.1.0
+    - Implement `DEBUG_FD` env variable support
+  * deps: depd@~1.0.0
+  * deps: etag@~1.5.0
+    - Improve string performance
+    - Slightly improve speed for weak ETags over 1KB
+
+0.9.3 / 2014-09-24
+==================
+
+  * deps: etag@~1.4.0
+    - Support "fake" stats objects
+
+0.9.2 / 2014-09-15
+==================
+
+  * deps: depd@0.4.5
+  * deps: etag@~1.3.1
+  * deps: range-parser@~1.0.2
+
+0.9.1 / 2014-09-07
+==================
+
+  * deps: fresh@0.2.4
+
+0.9.0 / 2014-09-07
+==================
+
+  * Add `lastModified` option
+  * Use `etag` to generate `ETag` header
+  * deps: debug@~2.0.0
+
+0.8.5 / 2014-09-04
+==================
+
+  * Fix malicious path detection for empty string path
+
+0.8.4 / 2014-09-04
+==================
+
+  * Fix a path traversal issue when using `root`
+
+0.8.3 / 2014-08-16
+==================
+
+  * deps: destroy@1.0.3
+    - renamed from dethroy
+  * deps: on-finished@2.1.0
+
+0.8.2 / 2014-08-14
+==================
+
+  * Work around `fd` leak in Node.js 0.10 for `fs.ReadStream`
+  * deps: dethroy@1.0.2
+
+0.8.1 / 2014-08-05
+==================
+
+  * Fix `extensions` behavior when file already has extension
+
+0.8.0 / 2014-08-05
+==================
+
+  * Add `extensions` option
+
+0.7.4 / 2014-08-04
+==================
+
+  * Fix serving index files without root dir
+
+0.7.3 / 2014-07-29
+==================
+
+  * Fix incorrect 403 on Windows and Node.js 0.11
+
+0.7.2 / 2014-07-27
+==================
+
+  * deps: depd@0.4.4
+    - Work-around v8 generating empty stack traces
+
+0.7.1 / 2014-07-26
+==================
+
+ * deps: depd@0.4.3
+   - Fix exception when global `Error.stackTraceLimit` is too low
+
+0.7.0 / 2014-07-20
+==================
+
+ * Deprecate `hidden` option; use `dotfiles` option
+ * Add `dotfiles` option
+ * deps: debug@1.0.4
+ * deps: depd@0.4.2
+   - Add `TRACE_DEPRECATION` environment variable
+   - Remove non-standard grey color from color output
+   - Support `--no-deprecation` argument
+   - Support `--trace-deprecation` argument
+
+0.6.0 / 2014-07-11
+==================
+
+ * Deprecate `from` option; use `root` option
+ * Deprecate `send.etag()` -- use `etag` in `options`
+ * Deprecate `send.hidden()` -- use `hidden` in `options`
+ * Deprecate `send.index()` -- use `index` in `options`
+ * Deprecate `send.maxage()` -- use `maxAge` in `options`
+ * Deprecate `send.root()` -- use `root` in `options`
+ * Cap `maxAge` value to 1 year
+ * deps: debug@1.0.3
+   - Add support for multiple wildcards in namespaces
+
+0.5.0 / 2014-06-28
+==================
+
+ * Accept string for `maxAge` (converted by `ms`)
+ * Add `headers` event
+ * Include link in default redirect response
+ * Use `EventEmitter.listenerCount` to count listeners
+
+0.4.3 / 2014-06-11
+==================
+
+ * Do not throw un-catchable error on file open race condition
+ * Use `escape-html` for HTML escaping
+ * deps: debug@1.0.2
+   - fix some debugging output colors on node.js 0.8
+ * deps: finished@1.2.2
+ * deps: fresh@0.2.2
+
+0.4.2 / 2014-06-09
+==================
+
+ * fix "event emitter leak" warnings
+ * deps: debug@1.0.1
+ * deps: finished@1.2.1
+
+0.4.1 / 2014-06-02
+==================
+
+ * Send `max-age` in `Cache-Control` in correct format
+
+0.4.0 / 2014-05-27
+==================
+
+ * Calculate ETag with md5 for reduced collisions
+ * Fix wrong behavior when index file matches directory
+ * Ignore stream errors after request ends
+   - Goodbye `EBADF, read`
+ * Skip directories in index file search
+ * deps: debug@0.8.1
+
+0.3.0 / 2014-04-24
+==================
+
+ * Fix sending files with dots without root set
+ * Coerce option types
+ * Accept API options in options object
+ * Set etags to "weak"
+ * Include file path in etag
+ * Make "Can't set headers after they are sent." catchable
+ * Send full entity-body for multi range requests
+ * Default directory access to 403 when index disabled
+ * Support multiple index paths
+ * Support "If-Range" header
+ * Control whether to generate etags
+ * deps: mime@1.2.11
+
+0.2.0 / 2014-01-29
+==================
+
+ * update range-parser and fresh
+
+0.1.4 / 2013-08-11 
+==================
+
+ * update fresh
+
+0.1.3 / 2013-07-08 
+==================
+
+ * Revert "Fix fd leak"
+
+0.1.2 / 2013-07-03 
+==================
+
+ * Fix fd leak
+
+0.1.0 / 2012-08-25 
+==================
+
+  * add options parameter to send() that is passed to fs.createReadStream() [kanongil]
+
+0.0.4 / 2012-08-16 
+==================
+
+  * allow custom "Accept-Ranges" definition
+
+0.0.3 / 2012-07-16 
+==================
+
+  * fix normalization of the root directory. Closes #3
+
+0.0.2 / 2012-07-09 
+==================
+
+  * add passing of req explicitly for now (YUCK)
+
+0.0.1 / 2010-01-03
+==================
+
+  * Initial release
diff --git a/backend/node_modules/send/LICENSE b/backend/node_modules/send/LICENSE
new file mode 100644
index 0000000..b6ea1c1
--- /dev/null
+++ b/backend/node_modules/send/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2012 TJ Holowaychuk
+Copyright (c) 2014-2022 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/send/README.md b/backend/node_modules/send/README.md
new file mode 100644
index 0000000..fadf838
--- /dev/null
+++ b/backend/node_modules/send/README.md
@@ -0,0 +1,327 @@
+# send
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Linux Build][github-actions-ci-image]][github-actions-ci-url]
+[![Windows Build][appveyor-image]][appveyor-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Send is a library for streaming files from the file system as a http response
+supporting partial responses (Ranges), conditional-GET negotiation (If-Match,
+If-Unmodified-Since, If-None-Match, If-Modified-Since), high test coverage,
+and granular events which may be leveraged to take appropriate actions in your
+application or framework.
+
+Looking to serve up entire folders mapped to URLs? Try [serve-static](https://www.npmjs.org/package/serve-static).
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```bash
+$ npm install send
+```
+
+## API
+
+```js
+var send = require('send')
+```
+
+### send(req, path, [options])
+
+Create a new `SendStream` for the given path to send to a `res`. The `req` is
+the Node.js HTTP request and the `path` is a urlencoded path to send (urlencoded,
+not the actual file-system path).
+
+#### Options
+
+##### acceptRanges
+
+Enable or disable accepting ranged requests, defaults to true.
+Disabling this will not send `Accept-Ranges` and ignore the contents
+of the `Range` request header.
+
+##### cacheControl
+
+Enable or disable setting `Cache-Control` response header, defaults to
+true. Disabling this will ignore the `immutable` and `maxAge` options.
+
+##### dotfiles
+
+Set how "dotfiles" are treated when encountered. A dotfile is a file
+or directory that begins with a dot ("."). Note this check is done on
+the path itself without checking if the path actually exists on the
+disk. If `root` is specified, only the dotfiles above the root are
+checked (i.e. the root itself can be within a dotfile when when set
+to "deny").
+
+  - `'allow'` No special treatment for dotfiles.
+  - `'deny'` Send a 403 for any request for a dotfile.
+  - `'ignore'` Pretend like the dotfile does not exist and 404.
+
+The default value is _similar_ to `'ignore'`, with the exception that
+this default will not ignore the files within a directory that begins
+with a dot, for backward-compatibility.
+
+##### end
+
+Byte offset at which the stream ends, defaults to the length of the file
+minus 1. The end is inclusive in the stream, meaning `end: 3` will include
+the 4th byte in the stream.
+
+##### etag
+
+Enable or disable etag generation, defaults to true.
+
+##### extensions
+
+If a given file doesn't exist, try appending one of the given extensions,
+in the given order. By default, this is disabled (set to `false`). An
+example value that will serve extension-less HTML files: `['html', 'htm']`.
+This is skipped if the requested file already has an extension.
+
+##### immutable
+
+Enable or disable the `immutable` directive in the `Cache-Control` response
+header, defaults to `false`. If set to `true`, the `maxAge` option should
+also be specified to enable caching. The `immutable` directive will prevent
+supported clients from making conditional requests during the life of the
+`maxAge` option to check if the file has changed.
+
+##### index
+
+By default send supports "index.html" files, to disable this
+set `false` or to supply a new index pass a string or an array
+in preferred order.
+
+##### lastModified
+
+Enable or disable `Last-Modified` header, defaults to true. Uses the file
+system's last modified value.
+
+##### maxAge
+
+Provide a max-age in milliseconds for http caching, defaults to 0.
+This can also be a string accepted by the
+[ms](https://www.npmjs.org/package/ms#readme) module.
+
+##### root
+
+Serve files relative to `path`.
+
+##### start
+
+Byte offset at which the stream starts, defaults to 0. The start is inclusive,
+meaning `start: 2` will include the 3rd byte in the stream.
+
+#### Events
+
+The `SendStream` is an event emitter and will emit the following events:
+
+  - `error` an error occurred `(err)`
+  - `directory` a directory was requested `(res, path)`
+  - `file` a file was requested `(path, stat)`
+  - `headers` the headers are about to be set on a file `(res, path, stat)`
+  - `stream` file streaming has started `(stream)`
+  - `end` streaming has completed
+
+#### .pipe
+
+The `pipe` method is used to pipe the response into the Node.js HTTP response
+object, typically `send(req, path, options).pipe(res)`.
+
+### .mime
+
+The `mime` export is the global instance of of the
+[`mime` npm module](https://www.npmjs.com/package/mime).
+
+This is used to configure the MIME types that are associated with file extensions
+as well as other options for how to resolve the MIME type of a file (like the
+default type to use for an unknown file extension).
+
+## Error-handling
+
+By default when no `error` listeners are present an automatic response will be
+made, otherwise you have full control over the response, aka you may show a 5xx
+page etc.
+
+## Caching
+
+It does _not_ perform internal caching, you should use a reverse proxy cache
+such as Varnish for this, or those fancy things called CDNs. If your
+application is small enough that it would benefit from single-node memory
+caching, it's small enough that it does not need caching at all ;).
+
+## Debugging
+
+To enable `debug()` instrumentation output export __DEBUG__:
+
+```
+$ DEBUG=send node app
+```
+
+## Running tests
+
+```
+$ npm install
+$ npm test
+```
+
+## Examples
+
+### Serve a specific file
+
+This simple example will send a specific file to all requests.
+
+```js
+var http = require('http')
+var send = require('send')
+
+var server = http.createServer(function onRequest (req, res) {
+  send(req, '/path/to/index.html')
+    .pipe(res)
+})
+
+server.listen(3000)
+```
+
+### Serve all files from a directory
+
+This simple example will just serve up all the files in a
+given directory as the top-level. For example, a request
+`GET /foo.txt` will send back `/www/public/foo.txt`.
+
+```js
+var http = require('http')
+var parseUrl = require('parseurl')
+var send = require('send')
+
+var server = http.createServer(function onRequest (req, res) {
+  send(req, parseUrl(req).pathname, { root: '/www/public' })
+    .pipe(res)
+})
+
+server.listen(3000)
+```
+
+### Custom file types
+
+```js
+var http = require('http')
+var parseUrl = require('parseurl')
+var send = require('send')
+
+// Default unknown types to text/plain
+send.mime.default_type = 'text/plain'
+
+// Add a custom type
+send.mime.define({
+  'application/x-my-type': ['x-mt', 'x-mtt']
+})
+
+var server = http.createServer(function onRequest (req, res) {
+  send(req, parseUrl(req).pathname, { root: '/www/public' })
+    .pipe(res)
+})
+
+server.listen(3000)
+```
+
+### Custom directory index view
+
+This is a example of serving up a structure of directories with a
+custom function to render a listing of a directory.
+
+```js
+var http = require('http')
+var fs = require('fs')
+var parseUrl = require('parseurl')
+var send = require('send')
+
+// Transfer arbitrary files from within /www/example.com/public/*
+// with a custom handler for directory listing
+var server = http.createServer(function onRequest (req, res) {
+  send(req, parseUrl(req).pathname, { index: false, root: '/www/public' })
+    .once('directory', directory)
+    .pipe(res)
+})
+
+server.listen(3000)
+
+// Custom directory handler
+function directory (res, path) {
+  var stream = this
+
+  // redirect to trailing slash for consistent url
+  if (!stream.hasTrailingSlash()) {
+    return stream.redirect(path)
+  }
+
+  // get directory list
+  fs.readdir(path, function onReaddir (err, list) {
+    if (err) return stream.error(err)
+
+    // render an index for the directory
+    res.setHeader('Content-Type', 'text/plain; charset=UTF-8')
+    res.end(list.join('\n') + '\n')
+  })
+}
+```
+
+### Serving from a root directory with custom error-handling
+
+```js
+var http = require('http')
+var parseUrl = require('parseurl')
+var send = require('send')
+
+var server = http.createServer(function onRequest (req, res) {
+  // your custom error-handling logic:
+  function error (err) {
+    res.statusCode = err.status || 500
+    res.end(err.message)
+  }
+
+  // your custom headers
+  function headers (res, path, stat) {
+    // serve all files for download
+    res.setHeader('Content-Disposition', 'attachment')
+  }
+
+  // your custom directory handling logic:
+  function redirect () {
+    res.statusCode = 301
+    res.setHeader('Location', req.url + '/')
+    res.end('Redirecting to ' + req.url + '/')
+  }
+
+  // transfer arbitrary files from within
+  // /www/example.com/public/*
+  send(req, parseUrl(req).pathname, { root: '/www/public' })
+    .on('error', error)
+    .on('directory', redirect)
+    .on('headers', headers)
+    .pipe(res)
+})
+
+server.listen(3000)
+```
+
+## License
+
+[MIT](LICENSE)
+
+[appveyor-image]: https://badgen.net/appveyor/ci/dougwilson/send/master?label=windows
+[appveyor-url]: https://ci.appveyor.com/project/dougwilson/send
+[coveralls-image]: https://badgen.net/coveralls/c/github/pillarjs/send/master
+[coveralls-url]: https://coveralls.io/r/pillarjs/send?branch=master
+[github-actions-ci-image]: https://badgen.net/github/checks/pillarjs/send/master?label=linux
+[github-actions-ci-url]: https://github.com/pillarjs/send/actions/workflows/ci.yml
+[node-image]: https://badgen.net/npm/node/send
+[node-url]: https://nodejs.org/en/download/
+[npm-downloads-image]: https://badgen.net/npm/dm/send
+[npm-url]: https://npmjs.org/package/send
+[npm-version-image]: https://badgen.net/npm/v/send
diff --git a/backend/node_modules/send/SECURITY.md b/backend/node_modules/send/SECURITY.md
new file mode 100644
index 0000000..46b48f7
--- /dev/null
+++ b/backend/node_modules/send/SECURITY.md
@@ -0,0 +1,24 @@
+# Security Policies and Procedures
+
+## Reporting a Bug
+
+The `send` team and community take all security bugs seriously. Thank you
+for improving the security of Express. We appreciate your efforts and
+responsible disclosure and will make every effort to acknowledge your
+contributions.
+
+Report security bugs by emailing the current owner(s) of `send`. This information
+can be found in the npm registry using the command `npm owner ls send`.
+If unsure or unable to get the information from the above, open an issue
+in the [project issue tracker](https://github.com/pillarjs/send/issues)
+asking for the current contact information.
+
+To ensure the timely response to your report, please ensure that the entirety
+of the report is contained within the email body and not solely behind a web
+link or an attachment.
+
+At least one owner will acknowledge your email within 48 hours, and will send a
+more detailed response within 48 hours indicating the next steps in handling
+your report. After the initial reply to your report, the owners will
+endeavor to keep you informed of the progress towards a fix and full
+announcement, and may ask for additional information or guidance.
diff --git a/backend/node_modules/send/index.js b/backend/node_modules/send/index.js
new file mode 100644
index 0000000..768f8ca
--- /dev/null
+++ b/backend/node_modules/send/index.js
@@ -0,0 +1,1142 @@
+/*!
+ * send
+ * Copyright(c) 2012 TJ Holowaychuk
+ * Copyright(c) 2014-2022 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var createError = require('http-errors')
+var debug = require('debug')('send')
+var deprecate = require('depd')('send')
+var destroy = require('destroy')
+var encodeUrl = require('encodeurl')
+var escapeHtml = require('escape-html')
+var etag = require('etag')
+var fresh = require('fresh')
+var fs = require('fs')
+var mime = require('mime')
+var ms = require('ms')
+var onFinished = require('on-finished')
+var parseRange = require('range-parser')
+var path = require('path')
+var statuses = require('statuses')
+var Stream = require('stream')
+var util = require('util')
+
+/**
+ * Path function references.
+ * @private
+ */
+
+var extname = path.extname
+var join = path.join
+var normalize = path.normalize
+var resolve = path.resolve
+var sep = path.sep
+
+/**
+ * Regular expression for identifying a bytes Range header.
+ * @private
+ */
+
+var BYTES_RANGE_REGEXP = /^ *bytes=/
+
+/**
+ * Maximum value allowed for the max age.
+ * @private
+ */
+
+var MAX_MAXAGE = 60 * 60 * 24 * 365 * 1000 // 1 year
+
+/**
+ * Regular expression to match a path with a directory up component.
+ * @private
+ */
+
+var UP_PATH_REGEXP = /(?:^|[\\/])\.\.(?:[\\/]|$)/
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = send
+module.exports.mime = mime
+
+/**
+ * Return a `SendStream` for `req` and `path`.
+ *
+ * @param {object} req
+ * @param {string} path
+ * @param {object} [options]
+ * @return {SendStream}
+ * @public
+ */
+
+function send (req, path, options) {
+  return new SendStream(req, path, options)
+}
+
+/**
+ * Initialize a `SendStream` with the given `path`.
+ *
+ * @param {Request} req
+ * @param {String} path
+ * @param {object} [options]
+ * @private
+ */
+
+function SendStream (req, path, options) {
+  Stream.call(this)
+
+  var opts = options || {}
+
+  this.options = opts
+  this.path = path
+  this.req = req
+
+  this._acceptRanges = opts.acceptRanges !== undefined
+    ? Boolean(opts.acceptRanges)
+    : true
+
+  this._cacheControl = opts.cacheControl !== undefined
+    ? Boolean(opts.cacheControl)
+    : true
+
+  this._etag = opts.etag !== undefined
+    ? Boolean(opts.etag)
+    : true
+
+  this._dotfiles = opts.dotfiles !== undefined
+    ? opts.dotfiles
+    : 'ignore'
+
+  if (this._dotfiles !== 'ignore' && this._dotfiles !== 'allow' && this._dotfiles !== 'deny') {
+    throw new TypeError('dotfiles option must be "allow", "deny", or "ignore"')
+  }
+
+  this._hidden = Boolean(opts.hidden)
+
+  if (opts.hidden !== undefined) {
+    deprecate('hidden: use dotfiles: \'' + (this._hidden ? 'allow' : 'ignore') + '\' instead')
+  }
+
+  // legacy support
+  if (opts.dotfiles === undefined) {
+    this._dotfiles = undefined
+  }
+
+  this._extensions = opts.extensions !== undefined
+    ? normalizeList(opts.extensions, 'extensions option')
+    : []
+
+  this._immutable = opts.immutable !== undefined
+    ? Boolean(opts.immutable)
+    : false
+
+  this._index = opts.index !== undefined
+    ? normalizeList(opts.index, 'index option')
+    : ['index.html']
+
+  this._lastModified = opts.lastModified !== undefined
+    ? Boolean(opts.lastModified)
+    : true
+
+  this._maxage = opts.maxAge || opts.maxage
+  this._maxage = typeof this._maxage === 'string'
+    ? ms(this._maxage)
+    : Number(this._maxage)
+  this._maxage = !isNaN(this._maxage)
+    ? Math.min(Math.max(0, this._maxage), MAX_MAXAGE)
+    : 0
+
+  this._root = opts.root
+    ? resolve(opts.root)
+    : null
+
+  if (!this._root && opts.from) {
+    this.from(opts.from)
+  }
+}
+
+/**
+ * Inherits from `Stream`.
+ */
+
+util.inherits(SendStream, Stream)
+
+/**
+ * Enable or disable etag generation.
+ *
+ * @param {Boolean} val
+ * @return {SendStream}
+ * @api public
+ */
+
+SendStream.prototype.etag = deprecate.function(function etag (val) {
+  this._etag = Boolean(val)
+  debug('etag %s', this._etag)
+  return this
+}, 'send.etag: pass etag as option')
+
+/**
+ * Enable or disable "hidden" (dot) files.
+ *
+ * @param {Boolean} path
+ * @return {SendStream}
+ * @api public
+ */
+
+SendStream.prototype.hidden = deprecate.function(function hidden (val) {
+  this._hidden = Boolean(val)
+  this._dotfiles = undefined
+  debug('hidden %s', this._hidden)
+  return this
+}, 'send.hidden: use dotfiles option')
+
+/**
+ * Set index `paths`, set to a falsy
+ * value to disable index support.
+ *
+ * @param {String|Boolean|Array} paths
+ * @return {SendStream}
+ * @api public
+ */
+
+SendStream.prototype.index = deprecate.function(function index (paths) {
+  var index = !paths ? [] : normalizeList(paths, 'paths argument')
+  debug('index %o', paths)
+  this._index = index
+  return this
+}, 'send.index: pass index as option')
+
+/**
+ * Set root `path`.
+ *
+ * @param {String} path
+ * @return {SendStream}
+ * @api public
+ */
+
+SendStream.prototype.root = function root (path) {
+  this._root = resolve(String(path))
+  debug('root %s', this._root)
+  return this
+}
+
+SendStream.prototype.from = deprecate.function(SendStream.prototype.root,
+  'send.from: pass root as option')
+
+SendStream.prototype.root = deprecate.function(SendStream.prototype.root,
+  'send.root: pass root as option')
+
+/**
+ * Set max-age to `maxAge`.
+ *
+ * @param {Number} maxAge
+ * @return {SendStream}
+ * @api public
+ */
+
+SendStream.prototype.maxage = deprecate.function(function maxage (maxAge) {
+  this._maxage = typeof maxAge === 'string'
+    ? ms(maxAge)
+    : Number(maxAge)
+  this._maxage = !isNaN(this._maxage)
+    ? Math.min(Math.max(0, this._maxage), MAX_MAXAGE)
+    : 0
+  debug('max-age %d', this._maxage)
+  return this
+}, 'send.maxage: pass maxAge as option')
+
+/**
+ * Emit error with `status`.
+ *
+ * @param {number} status
+ * @param {Error} [err]
+ * @private
+ */
+
+SendStream.prototype.error = function error (status, err) {
+  // emit if listeners instead of responding
+  if (hasListeners(this, 'error')) {
+    return this.emit('error', createHttpError(status, err))
+  }
+
+  var res = this.res
+  var msg = statuses.message[status] || String(status)
+  var doc = createHtmlDocument('Error', escapeHtml(msg))
+
+  // clear existing headers
+  clearHeaders(res)
+
+  // add error headers
+  if (err && err.headers) {
+    setHeaders(res, err.headers)
+  }
+
+  // send basic response
+  res.statusCode = status
+  res.setHeader('Content-Type', 'text/html; charset=UTF-8')
+  res.setHeader('Content-Length', Buffer.byteLength(doc))
+  res.setHeader('Content-Security-Policy', "default-src 'none'")
+  res.setHeader('X-Content-Type-Options', 'nosniff')
+  res.end(doc)
+}
+
+/**
+ * Check if the pathname ends with "/".
+ *
+ * @return {boolean}
+ * @private
+ */
+
+SendStream.prototype.hasTrailingSlash = function hasTrailingSlash () {
+  return this.path[this.path.length - 1] === '/'
+}
+
+/**
+ * Check if this is a conditional GET request.
+ *
+ * @return {Boolean}
+ * @api private
+ */
+
+SendStream.prototype.isConditionalGET = function isConditionalGET () {
+  return this.req.headers['if-match'] ||
+    this.req.headers['if-unmodified-since'] ||
+    this.req.headers['if-none-match'] ||
+    this.req.headers['if-modified-since']
+}
+
+/**
+ * Check if the request preconditions failed.
+ *
+ * @return {boolean}
+ * @private
+ */
+
+SendStream.prototype.isPreconditionFailure = function isPreconditionFailure () {
+  var req = this.req
+  var res = this.res
+
+  // if-match
+  var match = req.headers['if-match']
+  if (match) {
+    var etag = res.getHeader('ETag')
+    return !etag || (match !== '*' && parseTokenList(match).every(function (match) {
+      return match !== etag && match !== 'W/' + etag && 'W/' + match !== etag
+    }))
+  }
+
+  // if-unmodified-since
+  var unmodifiedSince = parseHttpDate(req.headers['if-unmodified-since'])
+  if (!isNaN(unmodifiedSince)) {
+    var lastModified = parseHttpDate(res.getHeader('Last-Modified'))
+    return isNaN(lastModified) || lastModified > unmodifiedSince
+  }
+
+  return false
+}
+
+/**
+ * Strip various content header fields for a change in entity.
+ *
+ * @private
+ */
+
+SendStream.prototype.removeContentHeaderFields = function removeContentHeaderFields () {
+  var res = this.res
+
+  res.removeHeader('Content-Encoding')
+  res.removeHeader('Content-Language')
+  res.removeHeader('Content-Length')
+  res.removeHeader('Content-Range')
+  res.removeHeader('Content-Type')
+}
+
+/**
+ * Respond with 304 not modified.
+ *
+ * @api private
+ */
+
+SendStream.prototype.notModified = function notModified () {
+  var res = this.res
+  debug('not modified')
+  this.removeContentHeaderFields()
+  res.statusCode = 304
+  res.end()
+}
+
+/**
+ * Raise error that headers already sent.
+ *
+ * @api private
+ */
+
+SendStream.prototype.headersAlreadySent = function headersAlreadySent () {
+  var err = new Error('Can\'t set headers after they are sent.')
+  debug('headers already sent')
+  this.error(500, err)
+}
+
+/**
+ * Check if the request is cacheable, aka
+ * responded with 2xx or 304 (see RFC 2616 section 14.2{5,6}).
+ *
+ * @return {Boolean}
+ * @api private
+ */
+
+SendStream.prototype.isCachable = function isCachable () {
+  var statusCode = this.res.statusCode
+  return (statusCode >= 200 && statusCode < 300) ||
+    statusCode === 304
+}
+
+/**
+ * Handle stat() error.
+ *
+ * @param {Error} error
+ * @private
+ */
+
+SendStream.prototype.onStatError = function onStatError (error) {
+  switch (error.code) {
+    case 'ENAMETOOLONG':
+    case 'ENOENT':
+    case 'ENOTDIR':
+      this.error(404, error)
+      break
+    default:
+      this.error(500, error)
+      break
+  }
+}
+
+/**
+ * Check if the cache is fresh.
+ *
+ * @return {Boolean}
+ * @api private
+ */
+
+SendStream.prototype.isFresh = function isFresh () {
+  return fresh(this.req.headers, {
+    etag: this.res.getHeader('ETag'),
+    'last-modified': this.res.getHeader('Last-Modified')
+  })
+}
+
+/**
+ * Check if the range is fresh.
+ *
+ * @return {Boolean}
+ * @api private
+ */
+
+SendStream.prototype.isRangeFresh = function isRangeFresh () {
+  var ifRange = this.req.headers['if-range']
+
+  if (!ifRange) {
+    return true
+  }
+
+  // if-range as etag
+  if (ifRange.indexOf('"') !== -1) {
+    var etag = this.res.getHeader('ETag')
+    return Boolean(etag && ifRange.indexOf(etag) !== -1)
+  }
+
+  // if-range as modified date
+  var lastModified = this.res.getHeader('Last-Modified')
+  return parseHttpDate(lastModified) <= parseHttpDate(ifRange)
+}
+
+/**
+ * Redirect to path.
+ *
+ * @param {string} path
+ * @private
+ */
+
+SendStream.prototype.redirect = function redirect (path) {
+  var res = this.res
+
+  if (hasListeners(this, 'directory')) {
+    this.emit('directory', res, path)
+    return
+  }
+
+  if (this.hasTrailingSlash()) {
+    this.error(403)
+    return
+  }
+
+  var loc = encodeUrl(collapseLeadingSlashes(this.path + '/'))
+  var doc = createHtmlDocument('Redirecting', 'Redirecting to ' + escapeHtml(loc))
+
+  // redirect
+  res.statusCode = 301
+  res.setHeader('Content-Type', 'text/html; charset=UTF-8')
+  res.setHeader('Content-Length', Buffer.byteLength(doc))
+  res.setHeader('Content-Security-Policy', "default-src 'none'")
+  res.setHeader('X-Content-Type-Options', 'nosniff')
+  res.setHeader('Location', loc)
+  res.end(doc)
+}
+
+/**
+ * Pipe to `res.
+ *
+ * @param {Stream} res
+ * @return {Stream} res
+ * @api public
+ */
+
+SendStream.prototype.pipe = function pipe (res) {
+  // root path
+  var root = this._root
+
+  // references
+  this.res = res
+
+  // decode the path
+  var path = decode(this.path)
+  if (path === -1) {
+    this.error(400)
+    return res
+  }
+
+  // null byte(s)
+  if (~path.indexOf('\0')) {
+    this.error(400)
+    return res
+  }
+
+  var parts
+  if (root !== null) {
+    // normalize
+    if (path) {
+      path = normalize('.' + sep + path)
+    }
+
+    // malicious path
+    if (UP_PATH_REGEXP.test(path)) {
+      debug('malicious path "%s"', path)
+      this.error(403)
+      return res
+    }
+
+    // explode path parts
+    parts = path.split(sep)
+
+    // join / normalize from optional root dir
+    path = normalize(join(root, path))
+  } else {
+    // ".." is malicious without "root"
+    if (UP_PATH_REGEXP.test(path)) {
+      debug('malicious path "%s"', path)
+      this.error(403)
+      return res
+    }
+
+    // explode path parts
+    parts = normalize(path).split(sep)
+
+    // resolve the path
+    path = resolve(path)
+  }
+
+  // dotfile handling
+  if (containsDotFile(parts)) {
+    var access = this._dotfiles
+
+    // legacy support
+    if (access === undefined) {
+      access = parts[parts.length - 1][0] === '.'
+        ? (this._hidden ? 'allow' : 'ignore')
+        : 'allow'
+    }
+
+    debug('%s dotfile "%s"', access, path)
+    switch (access) {
+      case 'allow':
+        break
+      case 'deny':
+        this.error(403)
+        return res
+      case 'ignore':
+      default:
+        this.error(404)
+        return res
+    }
+  }
+
+  // index file support
+  if (this._index.length && this.hasTrailingSlash()) {
+    this.sendIndex(path)
+    return res
+  }
+
+  this.sendFile(path)
+  return res
+}
+
+/**
+ * Transfer `path`.
+ *
+ * @param {String} path
+ * @api public
+ */
+
+SendStream.prototype.send = function send (path, stat) {
+  var len = stat.size
+  var options = this.options
+  var opts = {}
+  var res = this.res
+  var req = this.req
+  var ranges = req.headers.range
+  var offset = options.start || 0
+
+  if (headersSent(res)) {
+    // impossible to send now
+    this.headersAlreadySent()
+    return
+  }
+
+  debug('pipe "%s"', path)
+
+  // set header fields
+  this.setHeader(path, stat)
+
+  // set content-type
+  this.type(path)
+
+  // conditional GET support
+  if (this.isConditionalGET()) {
+    if (this.isPreconditionFailure()) {
+      this.error(412)
+      return
+    }
+
+    if (this.isCachable() && this.isFresh()) {
+      this.notModified()
+      return
+    }
+  }
+
+  // adjust len to start/end options
+  len = Math.max(0, len - offset)
+  if (options.end !== undefined) {
+    var bytes = options.end - offset + 1
+    if (len > bytes) len = bytes
+  }
+
+  // Range support
+  if (this._acceptRanges && BYTES_RANGE_REGEXP.test(ranges)) {
+    // parse
+    ranges = parseRange(len, ranges, {
+      combine: true
+    })
+
+    // If-Range support
+    if (!this.isRangeFresh()) {
+      debug('range stale')
+      ranges = -2
+    }
+
+    // unsatisfiable
+    if (ranges === -1) {
+      debug('range unsatisfiable')
+
+      // Content-Range
+      res.setHeader('Content-Range', contentRange('bytes', len))
+
+      // 416 Requested Range Not Satisfiable
+      return this.error(416, {
+        headers: { 'Content-Range': res.getHeader('Content-Range') }
+      })
+    }
+
+    // valid (syntactically invalid/multiple ranges are treated as a regular response)
+    if (ranges !== -2 && ranges.length === 1) {
+      debug('range %j', ranges)
+
+      // Content-Range
+      res.statusCode = 206
+      res.setHeader('Content-Range', contentRange('bytes', len, ranges[0]))
+
+      // adjust for requested range
+      offset += ranges[0].start
+      len = ranges[0].end - ranges[0].start + 1
+    }
+  }
+
+  // clone options
+  for (var prop in options) {
+    opts[prop] = options[prop]
+  }
+
+  // set read options
+  opts.start = offset
+  opts.end = Math.max(offset, offset + len - 1)
+
+  // content-length
+  res.setHeader('Content-Length', len)
+
+  // HEAD support
+  if (req.method === 'HEAD') {
+    res.end()
+    return
+  }
+
+  this.stream(path, opts)
+}
+
+/**
+ * Transfer file for `path`.
+ *
+ * @param {String} path
+ * @api private
+ */
+SendStream.prototype.sendFile = function sendFile (path) {
+  var i = 0
+  var self = this
+
+  debug('stat "%s"', path)
+  fs.stat(path, function onstat (err, stat) {
+    if (err && err.code === 'ENOENT' && !extname(path) && path[path.length - 1] !== sep) {
+      // not found, check extensions
+      return next(err)
+    }
+    if (err) return self.onStatError(err)
+    if (stat.isDirectory()) return self.redirect(path)
+    self.emit('file', path, stat)
+    self.send(path, stat)
+  })
+
+  function next (err) {
+    if (self._extensions.length <= i) {
+      return err
+        ? self.onStatError(err)
+        : self.error(404)
+    }
+
+    var p = path + '.' + self._extensions[i++]
+
+    debug('stat "%s"', p)
+    fs.stat(p, function (err, stat) {
+      if (err) return next(err)
+      if (stat.isDirectory()) return next()
+      self.emit('file', p, stat)
+      self.send(p, stat)
+    })
+  }
+}
+
+/**
+ * Transfer index for `path`.
+ *
+ * @param {String} path
+ * @api private
+ */
+SendStream.prototype.sendIndex = function sendIndex (path) {
+  var i = -1
+  var self = this
+
+  function next (err) {
+    if (++i >= self._index.length) {
+      if (err) return self.onStatError(err)
+      return self.error(404)
+    }
+
+    var p = join(path, self._index[i])
+
+    debug('stat "%s"', p)
+    fs.stat(p, function (err, stat) {
+      if (err) return next(err)
+      if (stat.isDirectory()) return next()
+      self.emit('file', p, stat)
+      self.send(p, stat)
+    })
+  }
+
+  next()
+}
+
+/**
+ * Stream `path` to the response.
+ *
+ * @param {String} path
+ * @param {Object} options
+ * @api private
+ */
+
+SendStream.prototype.stream = function stream (path, options) {
+  var self = this
+  var res = this.res
+
+  // pipe
+  var stream = fs.createReadStream(path, options)
+  this.emit('stream', stream)
+  stream.pipe(res)
+
+  // cleanup
+  function cleanup () {
+    destroy(stream, true)
+  }
+
+  // response finished, cleanup
+  onFinished(res, cleanup)
+
+  // error handling
+  stream.on('error', function onerror (err) {
+    // clean up stream early
+    cleanup()
+
+    // error
+    self.onStatError(err)
+  })
+
+  // end
+  stream.on('end', function onend () {
+    self.emit('end')
+  })
+}
+
+/**
+ * Set content-type based on `path`
+ * if it hasn't been explicitly set.
+ *
+ * @param {String} path
+ * @api private
+ */
+
+SendStream.prototype.type = function type (path) {
+  var res = this.res
+
+  if (res.getHeader('Content-Type')) return
+
+  var type = mime.lookup(path)
+
+  if (!type) {
+    debug('no content-type')
+    return
+  }
+
+  var charset = mime.charsets.lookup(type)
+
+  debug('content-type %s', type)
+  res.setHeader('Content-Type', type + (charset ? '; charset=' + charset : ''))
+}
+
+/**
+ * Set response header fields, most
+ * fields may be pre-defined.
+ *
+ * @param {String} path
+ * @param {Object} stat
+ * @api private
+ */
+
+SendStream.prototype.setHeader = function setHeader (path, stat) {
+  var res = this.res
+
+  this.emit('headers', res, path, stat)
+
+  if (this._acceptRanges && !res.getHeader('Accept-Ranges')) {
+    debug('accept ranges')
+    res.setHeader('Accept-Ranges', 'bytes')
+  }
+
+  if (this._cacheControl && !res.getHeader('Cache-Control')) {
+    var cacheControl = 'public, max-age=' + Math.floor(this._maxage / 1000)
+
+    if (this._immutable) {
+      cacheControl += ', immutable'
+    }
+
+    debug('cache-control %s', cacheControl)
+    res.setHeader('Cache-Control', cacheControl)
+  }
+
+  if (this._lastModified && !res.getHeader('Last-Modified')) {
+    var modified = stat.mtime.toUTCString()
+    debug('modified %s', modified)
+    res.setHeader('Last-Modified', modified)
+  }
+
+  if (this._etag && !res.getHeader('ETag')) {
+    var val = etag(stat)
+    debug('etag %s', val)
+    res.setHeader('ETag', val)
+  }
+}
+
+/**
+ * Clear all headers from a response.
+ *
+ * @param {object} res
+ * @private
+ */
+
+function clearHeaders (res) {
+  var headers = getHeaderNames(res)
+
+  for (var i = 0; i < headers.length; i++) {
+    res.removeHeader(headers[i])
+  }
+}
+
+/**
+ * Collapse all leading slashes into a single slash
+ *
+ * @param {string} str
+ * @private
+ */
+function collapseLeadingSlashes (str) {
+  for (var i = 0; i < str.length; i++) {
+    if (str[i] !== '/') {
+      break
+    }
+  }
+
+  return i > 1
+    ? '/' + str.substr(i)
+    : str
+}
+
+/**
+ * Determine if path parts contain a dotfile.
+ *
+ * @api private
+ */
+
+function containsDotFile (parts) {
+  for (var i = 0; i < parts.length; i++) {
+    var part = parts[i]
+    if (part.length > 1 && part[0] === '.') {
+      return true
+    }
+  }
+
+  return false
+}
+
+/**
+ * Create a Content-Range header.
+ *
+ * @param {string} type
+ * @param {number} size
+ * @param {array} [range]
+ */
+
+function contentRange (type, size, range) {
+  return type + ' ' + (range ? range.start + '-' + range.end : '*') + '/' + size
+}
+
+/**
+ * Create a minimal HTML document.
+ *
+ * @param {string} title
+ * @param {string} body
+ * @private
+ */
+
+function createHtmlDocument (title, body) {
+  return '<!DOCTYPE html>\n' +
+    '<html lang="en">\n' +
+    '<head>\n' +
+    '<meta charset="utf-8">\n' +
+    '<title>' + title + '</title>\n' +
+    '</head>\n' +
+    '<body>\n' +
+    '<pre>' + body + '</pre>\n' +
+    '</body>\n' +
+    '</html>\n'
+}
+
+/**
+ * Create a HttpError object from simple arguments.
+ *
+ * @param {number} status
+ * @param {Error|object} err
+ * @private
+ */
+
+function createHttpError (status, err) {
+  if (!err) {
+    return createError(status)
+  }
+
+  return err instanceof Error
+    ? createError(status, err, { expose: false })
+    : createError(status, err)
+}
+
+/**
+ * decodeURIComponent.
+ *
+ * Allows V8 to only deoptimize this fn instead of all
+ * of send().
+ *
+ * @param {String} path
+ * @api private
+ */
+
+function decode (path) {
+  try {
+    return decodeURIComponent(path)
+  } catch (err) {
+    return -1
+  }
+}
+
+/**
+ * Get the header names on a respnse.
+ *
+ * @param {object} res
+ * @returns {array[string]}
+ * @private
+ */
+
+function getHeaderNames (res) {
+  return typeof res.getHeaderNames !== 'function'
+    ? Object.keys(res._headers || {})
+    : res.getHeaderNames()
+}
+
+/**
+ * Determine if emitter has listeners of a given type.
+ *
+ * The way to do this check is done three different ways in Node.js >= 0.8
+ * so this consolidates them into a minimal set using instance methods.
+ *
+ * @param {EventEmitter} emitter
+ * @param {string} type
+ * @returns {boolean}
+ * @private
+ */
+
+function hasListeners (emitter, type) {
+  var count = typeof emitter.listenerCount !== 'function'
+    ? emitter.listeners(type).length
+    : emitter.listenerCount(type)
+
+  return count > 0
+}
+
+/**
+ * Determine if the response headers have been sent.
+ *
+ * @param {object} res
+ * @returns {boolean}
+ * @private
+ */
+
+function headersSent (res) {
+  return typeof res.headersSent !== 'boolean'
+    ? Boolean(res._header)
+    : res.headersSent
+}
+
+/**
+ * Normalize the index option into an array.
+ *
+ * @param {boolean|string|array} val
+ * @param {string} name
+ * @private
+ */
+
+function normalizeList (val, name) {
+  var list = [].concat(val || [])
+
+  for (var i = 0; i < list.length; i++) {
+    if (typeof list[i] !== 'string') {
+      throw new TypeError(name + ' must be array of strings or false')
+    }
+  }
+
+  return list
+}
+
+/**
+ * Parse an HTTP Date into a number.
+ *
+ * @param {string} date
+ * @private
+ */
+
+function parseHttpDate (date) {
+  var timestamp = date && Date.parse(date)
+
+  return typeof timestamp === 'number'
+    ? timestamp
+    : NaN
+}
+
+/**
+ * Parse a HTTP token list.
+ *
+ * @param {string} str
+ * @private
+ */
+
+function parseTokenList (str) {
+  var end = 0
+  var list = []
+  var start = 0
+
+  // gather tokens
+  for (var i = 0, len = str.length; i < len; i++) {
+    switch (str.charCodeAt(i)) {
+      case 0x20: /*   */
+        if (start === end) {
+          start = end = i + 1
+        }
+        break
+      case 0x2c: /* , */
+        if (start !== end) {
+          list.push(str.substring(start, end))
+        }
+        start = end = i + 1
+        break
+      default:
+        end = i + 1
+        break
+    }
+  }
+
+  // final token
+  if (start !== end) {
+    list.push(str.substring(start, end))
+  }
+
+  return list
+}
+
+/**
+ * Set an object of headers on a response.
+ *
+ * @param {object} res
+ * @param {object} headers
+ * @private
+ */
+
+function setHeaders (res, headers) {
+  var keys = Object.keys(headers)
+
+  for (var i = 0; i < keys.length; i++) {
+    var key = keys[i]
+    res.setHeader(key, headers[key])
+  }
+}
diff --git a/backend/node_modules/send/node_modules/encodeurl/HISTORY.md b/backend/node_modules/send/node_modules/encodeurl/HISTORY.md
new file mode 100644
index 0000000..41313b2
--- /dev/null
+++ b/backend/node_modules/send/node_modules/encodeurl/HISTORY.md
@@ -0,0 +1,14 @@
+1.0.2 / 2018-01-21
+==================
+
+  * Fix encoding `%` as last character
+
+1.0.1 / 2016-06-09
+==================
+
+  * Fix encoding unpaired surrogates at start/end of string
+
+1.0.0 / 2016-06-08
+==================
+
+  * Initial release
diff --git a/backend/node_modules/send/node_modules/encodeurl/LICENSE b/backend/node_modules/send/node_modules/encodeurl/LICENSE
new file mode 100644
index 0000000..8812229
--- /dev/null
+++ b/backend/node_modules/send/node_modules/encodeurl/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2016 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/send/node_modules/encodeurl/README.md b/backend/node_modules/send/node_modules/encodeurl/README.md
new file mode 100644
index 0000000..127c5a0
--- /dev/null
+++ b/backend/node_modules/send/node_modules/encodeurl/README.md
@@ -0,0 +1,128 @@
+# encodeurl
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Encode a URL to a percent-encoded form, excluding already-encoded sequences
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install encodeurl
+```
+
+## API
+
+```js
+var encodeUrl = require('encodeurl')
+```
+
+### encodeUrl(url)
+
+Encode a URL to a percent-encoded form, excluding already-encoded sequences.
+
+This function will take an already-encoded URL and encode all the non-URL
+code points (as UTF-8 byte sequences). This function will not encode the
+"%" character unless it is not part of a valid sequence (`%20` will be
+left as-is, but `%foo` will be encoded as `%25foo`).
+
+This encode is meant to be "safe" and does not throw errors. It will try as
+hard as it can to properly encode the given URL, including replacing any raw,
+unpaired surrogate pairs with the Unicode replacement character prior to
+encoding.
+
+This function is _similar_ to the intrinsic function `encodeURI`, except it
+will not encode the `%` character if that is part of a valid sequence, will
+not encode `[` and `]` (for IPv6 hostnames) and will replace raw, unpaired
+surrogate pairs with the Unicode replacement character (instead of throwing).
+
+## Examples
+
+### Encode a URL containing user-controled data
+
+```js
+var encodeUrl = require('encodeurl')
+var escapeHtml = require('escape-html')
+
+http.createServer(function onRequest (req, res) {
+  // get encoded form of inbound url
+  var url = encodeUrl(req.url)
+
+  // create html message
+  var body = '<p>Location ' + escapeHtml(url) + ' not found</p>'
+
+  // send a 404
+  res.statusCode = 404
+  res.setHeader('Content-Type', 'text/html; charset=UTF-8')
+  res.setHeader('Content-Length', String(Buffer.byteLength(body, 'utf-8')))
+  res.end(body, 'utf-8')
+})
+```
+
+### Encode a URL for use in a header field
+
+```js
+var encodeUrl = require('encodeurl')
+var escapeHtml = require('escape-html')
+var url = require('url')
+
+http.createServer(function onRequest (req, res) {
+  // parse inbound url
+  var href = url.parse(req)
+
+  // set new host for redirect
+  href.host = 'localhost'
+  href.protocol = 'https:'
+  href.slashes = true
+
+  // create location header
+  var location = encodeUrl(url.format(href))
+
+  // create html message
+  var body = '<p>Redirecting to new site: ' + escapeHtml(location) + '</p>'
+
+  // send a 301
+  res.statusCode = 301
+  res.setHeader('Content-Type', 'text/html; charset=UTF-8')
+  res.setHeader('Content-Length', String(Buffer.byteLength(body, 'utf-8')))
+  res.setHeader('Location', location)
+  res.end(body, 'utf-8')
+})
+```
+
+## Testing
+
+```sh
+$ npm test
+$ npm run lint
+```
+
+## References
+
+- [RFC 3986: Uniform Resource Identifier (URI): Generic Syntax][rfc-3986]
+- [WHATWG URL Living Standard][whatwg-url]
+
+[rfc-3986]: https://tools.ietf.org/html/rfc3986
+[whatwg-url]: https://url.spec.whatwg.org/
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/encodeurl.svg
+[npm-url]: https://npmjs.org/package/encodeurl
+[node-version-image]: https://img.shields.io/node/v/encodeurl.svg
+[node-version-url]: https://nodejs.org/en/download
+[travis-image]: https://img.shields.io/travis/pillarjs/encodeurl.svg
+[travis-url]: https://travis-ci.org/pillarjs/encodeurl
+[coveralls-image]: https://img.shields.io/coveralls/pillarjs/encodeurl.svg
+[coveralls-url]: https://coveralls.io/r/pillarjs/encodeurl?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/encodeurl.svg
+[downloads-url]: https://npmjs.org/package/encodeurl
diff --git a/backend/node_modules/send/node_modules/encodeurl/index.js b/backend/node_modules/send/node_modules/encodeurl/index.js
new file mode 100644
index 0000000..fc4906c
--- /dev/null
+++ b/backend/node_modules/send/node_modules/encodeurl/index.js
@@ -0,0 +1,60 @@
+/*!
+ * encodeurl
+ * Copyright(c) 2016 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = encodeUrl
+
+/**
+ * RegExp to match non-URL code points, *after* encoding (i.e. not including "%")
+ * and including invalid escape sequences.
+ * @private
+ */
+
+var ENCODE_CHARS_REGEXP = /(?:[^\x21\x25\x26-\x3B\x3D\x3F-\x5B\x5D\x5F\x61-\x7A\x7E]|%(?:[^0-9A-Fa-f]|[0-9A-Fa-f][^0-9A-Fa-f]|$))+/g
+
+/**
+ * RegExp to match unmatched surrogate pair.
+ * @private
+ */
+
+var UNMATCHED_SURROGATE_PAIR_REGEXP = /(^|[^\uD800-\uDBFF])[\uDC00-\uDFFF]|[\uD800-\uDBFF]([^\uDC00-\uDFFF]|$)/g
+
+/**
+ * String to replace unmatched surrogate pair with.
+ * @private
+ */
+
+var UNMATCHED_SURROGATE_PAIR_REPLACE = '$1\uFFFD$2'
+
+/**
+ * Encode a URL to a percent-encoded form, excluding already-encoded sequences.
+ *
+ * This function will take an already-encoded URL and encode all the non-URL
+ * code points. This function will not encode the "%" character unless it is
+ * not part of a valid sequence (`%20` will be left as-is, but `%foo` will
+ * be encoded as `%25foo`).
+ *
+ * This encode is meant to be "safe" and does not throw errors. It will try as
+ * hard as it can to properly encode the given URL, including replacing any raw,
+ * unpaired surrogate pairs with the Unicode replacement character prior to
+ * encoding.
+ *
+ * @param {string} url
+ * @return {string}
+ * @public
+ */
+
+function encodeUrl (url) {
+  return String(url)
+    .replace(UNMATCHED_SURROGATE_PAIR_REGEXP, UNMATCHED_SURROGATE_PAIR_REPLACE)
+    .replace(ENCODE_CHARS_REGEXP, encodeURI)
+}
diff --git a/backend/node_modules/send/node_modules/encodeurl/package.json b/backend/node_modules/send/node_modules/encodeurl/package.json
new file mode 100644
index 0000000..b9f25ef
--- /dev/null
+++ b/backend/node_modules/send/node_modules/encodeurl/package.json
@@ -0,0 +1,40 @@
+{
+  "name": "encodeurl",
+  "description": "Encode a URL to a percent-encoded form, excluding already-encoded sequences",
+  "version": "1.0.2",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>"
+  ],
+  "license": "MIT",
+  "keywords": [
+    "encode",
+    "encodeurl",
+    "url"
+  ],
+  "repository": "pillarjs/encodeurl",
+  "devDependencies": {
+    "eslint": "3.19.0",
+    "eslint-config-standard": "10.2.1",
+    "eslint-plugin-import": "2.8.0",
+    "eslint-plugin-node": "5.2.1",
+    "eslint-plugin-promise": "3.6.0",
+    "eslint-plugin-standard": "3.0.1",
+    "istanbul": "0.4.5",
+    "mocha": "2.5.3"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "README.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/",
+    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/"
+  }
+}
diff --git a/backend/node_modules/send/node_modules/ms/index.js b/backend/node_modules/send/node_modules/ms/index.js
new file mode 100644
index 0000000..ea734fb
--- /dev/null
+++ b/backend/node_modules/send/node_modules/ms/index.js
@@ -0,0 +1,162 @@
+/**
+ * Helpers.
+ */
+
+var s = 1000;
+var m = s * 60;
+var h = m * 60;
+var d = h * 24;
+var w = d * 7;
+var y = d * 365.25;
+
+/**
+ * Parse or format the given `val`.
+ *
+ * Options:
+ *
+ *  - `long` verbose formatting [false]
+ *
+ * @param {String|Number} val
+ * @param {Object} [options]
+ * @throws {Error} throw an error if val is not a non-empty string or a number
+ * @return {String|Number}
+ * @api public
+ */
+
+module.exports = function (val, options) {
+  options = options || {};
+  var type = typeof val;
+  if (type === 'string' && val.length > 0) {
+    return parse(val);
+  } else if (type === 'number' && isFinite(val)) {
+    return options.long ? fmtLong(val) : fmtShort(val);
+  }
+  throw new Error(
+    'val is not a non-empty string or a valid number. val=' +
+      JSON.stringify(val)
+  );
+};
+
+/**
+ * Parse the given `str` and return milliseconds.
+ *
+ * @param {String} str
+ * @return {Number}
+ * @api private
+ */
+
+function parse(str) {
+  str = String(str);
+  if (str.length > 100) {
+    return;
+  }
+  var match = /^(-?(?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(
+    str
+  );
+  if (!match) {
+    return;
+  }
+  var n = parseFloat(match[1]);
+  var type = (match[2] || 'ms').toLowerCase();
+  switch (type) {
+    case 'years':
+    case 'year':
+    case 'yrs':
+    case 'yr':
+    case 'y':
+      return n * y;
+    case 'weeks':
+    case 'week':
+    case 'w':
+      return n * w;
+    case 'days':
+    case 'day':
+    case 'd':
+      return n * d;
+    case 'hours':
+    case 'hour':
+    case 'hrs':
+    case 'hr':
+    case 'h':
+      return n * h;
+    case 'minutes':
+    case 'minute':
+    case 'mins':
+    case 'min':
+    case 'm':
+      return n * m;
+    case 'seconds':
+    case 'second':
+    case 'secs':
+    case 'sec':
+    case 's':
+      return n * s;
+    case 'milliseconds':
+    case 'millisecond':
+    case 'msecs':
+    case 'msec':
+    case 'ms':
+      return n;
+    default:
+      return undefined;
+  }
+}
+
+/**
+ * Short format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function fmtShort(ms) {
+  var msAbs = Math.abs(ms);
+  if (msAbs >= d) {
+    return Math.round(ms / d) + 'd';
+  }
+  if (msAbs >= h) {
+    return Math.round(ms / h) + 'h';
+  }
+  if (msAbs >= m) {
+    return Math.round(ms / m) + 'm';
+  }
+  if (msAbs >= s) {
+    return Math.round(ms / s) + 's';
+  }
+  return ms + 'ms';
+}
+
+/**
+ * Long format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function fmtLong(ms) {
+  var msAbs = Math.abs(ms);
+  if (msAbs >= d) {
+    return plural(ms, msAbs, d, 'day');
+  }
+  if (msAbs >= h) {
+    return plural(ms, msAbs, h, 'hour');
+  }
+  if (msAbs >= m) {
+    return plural(ms, msAbs, m, 'minute');
+  }
+  if (msAbs >= s) {
+    return plural(ms, msAbs, s, 'second');
+  }
+  return ms + ' ms';
+}
+
+/**
+ * Pluralization helper.
+ */
+
+function plural(ms, msAbs, n, name) {
+  var isPlural = msAbs >= n * 1.5;
+  return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');
+}
diff --git a/backend/node_modules/send/node_modules/ms/license.md b/backend/node_modules/send/node_modules/ms/license.md
new file mode 100644
index 0000000..fa5d39b
--- /dev/null
+++ b/backend/node_modules/send/node_modules/ms/license.md
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2020 Vercel, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/send/node_modules/ms/package.json b/backend/node_modules/send/node_modules/ms/package.json
new file mode 100644
index 0000000..4997189
--- /dev/null
+++ b/backend/node_modules/send/node_modules/ms/package.json
@@ -0,0 +1,38 @@
+{
+  "name": "ms",
+  "version": "2.1.3",
+  "description": "Tiny millisecond conversion utility",
+  "repository": "vercel/ms",
+  "main": "./index",
+  "files": [
+    "index.js"
+  ],
+  "scripts": {
+    "precommit": "lint-staged",
+    "lint": "eslint lib/* bin/*",
+    "test": "mocha tests.js"
+  },
+  "eslintConfig": {
+    "extends": "eslint:recommended",
+    "env": {
+      "node": true,
+      "es6": true
+    }
+  },
+  "lint-staged": {
+    "*.js": [
+      "npm run lint",
+      "prettier --single-quote --write",
+      "git add"
+    ]
+  },
+  "license": "MIT",
+  "devDependencies": {
+    "eslint": "4.18.2",
+    "expect.js": "0.3.1",
+    "husky": "0.14.3",
+    "lint-staged": "5.0.0",
+    "mocha": "4.0.1",
+    "prettier": "2.0.5"
+  }
+}
diff --git a/backend/node_modules/send/node_modules/ms/readme.md b/backend/node_modules/send/node_modules/ms/readme.md
new file mode 100644
index 0000000..0fc1abb
--- /dev/null
+++ b/backend/node_modules/send/node_modules/ms/readme.md
@@ -0,0 +1,59 @@
+# ms
+
+![CI](https://github.com/vercel/ms/workflows/CI/badge.svg)
+
+Use this package to easily convert various time formats to milliseconds.
+
+## Examples
+
+```js
+ms('2 days')  // 172800000
+ms('1d')      // 86400000
+ms('10h')     // 36000000
+ms('2.5 hrs') // 9000000
+ms('2h')      // 7200000
+ms('1m')      // 60000
+ms('5s')      // 5000
+ms('1y')      // 31557600000
+ms('100')     // 100
+ms('-3 days') // -259200000
+ms('-1h')     // -3600000
+ms('-200')    // -200
+```
+
+### Convert from Milliseconds
+
+```js
+ms(60000)             // "1m"
+ms(2 * 60000)         // "2m"
+ms(-3 * 60000)        // "-3m"
+ms(ms('10 hours'))    // "10h"
+```
+
+### Time Format Written-Out
+
+```js
+ms(60000, { long: true })             // "1 minute"
+ms(2 * 60000, { long: true })         // "2 minutes"
+ms(-3 * 60000, { long: true })        // "-3 minutes"
+ms(ms('10 hours'), { long: true })    // "10 hours"
+```
+
+## Features
+
+- Works both in [Node.js](https://nodejs.org) and in the browser
+- If a number is supplied to `ms`, a string with a unit is returned
+- If a string that contains the number is supplied, it returns it as a number (e.g.: it returns `100` for `'100'`)
+- If you pass a string with a number and a valid unit, the number of equivalent milliseconds is returned
+
+## Related Packages
+
+- [ms.macro](https://github.com/knpwrs/ms.macro) - Run `ms` as a macro at build-time.
+
+## Caught a Bug?
+
+1. [Fork](https://help.github.com/articles/fork-a-repo/) this repository to your own GitHub account and then [clone](https://help.github.com/articles/cloning-a-repository/) it to your local device
+2. Link the package to the global module directory: `npm link`
+3. Within the module you want to test your local development instance of ms, just link it to the dependencies: `npm link ms`. Instead of the default one from npm, Node.js will now use your clone of ms!
+
+As always, you can run the tests using: `npm test`
diff --git a/backend/node_modules/send/package.json b/backend/node_modules/send/package.json
new file mode 100644
index 0000000..a3233e0
--- /dev/null
+++ b/backend/node_modules/send/package.json
@@ -0,0 +1,62 @@
+{
+  "name": "send",
+  "description": "Better streaming static file server with Range and conditional-GET support",
+  "version": "0.19.0",
+  "author": "TJ Holowaychuk <tj@vision-media.ca>",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "James Wyatt Cready <jcready@gmail.com>",
+    "Jesús Leganés Combarro <piranna@gmail.com>"
+  ],
+  "license": "MIT",
+  "repository": "pillarjs/send",
+  "keywords": [
+    "static",
+    "file",
+    "server"
+  ],
+  "dependencies": {
+    "debug": "2.6.9",
+    "depd": "2.0.0",
+    "destroy": "1.2.0",
+    "encodeurl": "~1.0.2",
+    "escape-html": "~1.0.3",
+    "etag": "~1.8.1",
+    "fresh": "0.5.2",
+    "http-errors": "2.0.0",
+    "mime": "1.6.0",
+    "ms": "2.1.3",
+    "on-finished": "2.4.1",
+    "range-parser": "~1.2.1",
+    "statuses": "2.0.1"
+  },
+  "devDependencies": {
+    "after": "0.8.2",
+    "eslint": "7.32.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.25.4",
+    "eslint-plugin-markdown": "2.2.1",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "5.2.0",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "9.2.2",
+    "nyc": "15.1.0",
+    "supertest": "6.2.2"
+  },
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "README.md",
+    "SECURITY.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.8.0"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --check-leaks --reporter spec --bail",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
+  }
+}
diff --git a/backend/node_modules/serve-static/HISTORY.md b/backend/node_modules/serve-static/HISTORY.md
new file mode 100644
index 0000000..dccf667
--- /dev/null
+++ b/backend/node_modules/serve-static/HISTORY.md
@@ -0,0 +1,487 @@
+1.16.2 / 2024-09-11
+===================
+
+* deps: encodeurl@~2.0.0
+
+1.16.1 / 2024-09-11
+===================
+
+* deps: send@0.19.0
+
+1.16.0 / 2024-09-10
+===================
+
+* Remove link renderization in html while redirecting
+
+
+1.15.0 / 2022-03-24
+===================
+
+  * deps: send@0.18.0
+    - Fix emitted 416 error missing headers property
+    - Limit the headers removed for 304 response
+    - deps: depd@2.0.0
+    - deps: destroy@1.2.0
+    - deps: http-errors@2.0.0
+    - deps: on-finished@2.4.1
+    - deps: statuses@2.0.1
+
+1.14.2 / 2021-12-15
+===================
+
+  * deps: send@0.17.2
+    - deps: http-errors@1.8.1
+    - deps: ms@2.1.3
+    - pref: ignore empty http tokens
+
+1.14.1 / 2019-05-10
+===================
+
+  * Set stricter CSP header in redirect response
+  * deps: send@0.17.1
+    - deps: range-parser@~1.2.1
+
+1.14.0 / 2019-05-07
+===================
+
+  * deps: parseurl@~1.3.3
+  * deps: send@0.17.0
+    - deps: http-errors@~1.7.2
+    - deps: mime@1.6.0
+    - deps: ms@2.1.1
+    - deps: statuses@~1.5.0
+    - perf: remove redundant `path.normalize` call
+
+1.13.2 / 2018-02-07
+===================
+
+  * Fix incorrect end tag in redirects
+  * deps: encodeurl@~1.0.2
+    - Fix encoding `%` as last character
+  * deps: send@0.16.2
+    - deps: depd@~1.1.2
+    - deps: encodeurl@~1.0.2
+    - deps: statuses@~1.4.0
+
+1.13.1 / 2017-09-29
+===================
+
+  * Fix regression when `root` is incorrectly set to a file
+  * deps: send@0.16.1
+
+1.13.0 / 2017-09-27
+===================
+
+  * deps: send@0.16.0
+    - Add 70 new types for file extensions
+    - Add `immutable` option
+    - Fix missing `</html>` in default error & redirects
+    - Set charset as "UTF-8" for .js and .json
+    - Use instance methods on steam to check for listeners
+    - deps: mime@1.4.1
+    - perf: improve path validation speed
+
+1.12.6 / 2017-09-22
+===================
+
+  * deps: send@0.15.6
+    - deps: debug@2.6.9
+    - perf: improve `If-Match` token parsing
+  * perf: improve slash collapsing
+
+1.12.5 / 2017-09-21
+===================
+
+  * deps: parseurl@~1.3.2
+    - perf: reduce overhead for full URLs
+    - perf: unroll the "fast-path" `RegExp`
+  * deps: send@0.15.5
+    - Fix handling of modified headers with invalid dates
+    - deps: etag@~1.8.1
+    - deps: fresh@0.5.2
+
+1.12.4 / 2017-08-05
+===================
+
+  * deps: send@0.15.4
+    - deps: debug@2.6.8
+    - deps: depd@~1.1.1
+    - deps: http-errors@~1.6.2
+
+1.12.3 / 2017-05-16
+===================
+
+  * deps: send@0.15.3
+    - deps: debug@2.6.7
+
+1.12.2 / 2017-04-26
+===================
+
+  * deps: send@0.15.2
+    - deps: debug@2.6.4
+
+1.12.1 / 2017-03-04
+===================
+
+  * deps: send@0.15.1
+    - Fix issue when `Date.parse` does not return `NaN` on invalid date
+    - Fix strict violation in broken environments
+
+1.12.0 / 2017-02-25
+===================
+
+  * Send complete HTML document in redirect response
+  * Set default CSP header in redirect response
+  * deps: send@0.15.0
+    - Fix false detection of `no-cache` request directive
+    - Fix incorrect result when `If-None-Match` has both `*` and ETags
+    - Fix weak `ETag` matching to match spec
+    - Remove usage of `res._headers` private field
+    - Support `If-Match` and `If-Unmodified-Since` headers
+    - Use `res.getHeaderNames()` when available
+    - Use `res.headersSent` when available
+    - deps: debug@2.6.1
+    - deps: etag@~1.8.0
+    - deps: fresh@0.5.0
+    - deps: http-errors@~1.6.1
+
+1.11.2 / 2017-01-23
+===================
+
+  * deps: send@0.14.2
+    - deps: http-errors@~1.5.1
+    - deps: ms@0.7.2
+    - deps: statuses@~1.3.1
+
+1.11.1 / 2016-06-10
+===================
+
+  * Fix redirect error when `req.url` contains raw non-URL characters
+  * deps: send@0.14.1
+
+1.11.0 / 2016-06-07
+===================
+
+  * Use status code 301 for redirects
+  * deps: send@0.14.0
+    - Add `acceptRanges` option
+    - Add `cacheControl` option
+    - Attempt to combine multiple ranges into single range
+    - Correctly inherit from `Stream` class
+    - Fix `Content-Range` header in 416 responses when using `start`/`end` options
+    - Fix `Content-Range` header missing from default 416 responses
+    - Ignore non-byte `Range` headers
+    - deps: http-errors@~1.5.0
+    - deps: range-parser@~1.2.0
+    - deps: statuses@~1.3.0
+    - perf: remove argument reassignment
+
+1.10.3 / 2016-05-30
+===================
+
+  * deps: send@0.13.2
+    - Fix invalid `Content-Type` header when `send.mime.default_type` unset
+
+1.10.2 / 2016-01-19
+===================
+
+  * deps: parseurl@~1.3.1
+    - perf: enable strict mode
+
+1.10.1 / 2016-01-16
+===================
+
+  * deps: escape-html@~1.0.3
+    - perf: enable strict mode
+    - perf: optimize string replacement
+    - perf: use faster string coercion
+  * deps: send@0.13.1
+    - deps: depd@~1.1.0
+    - deps: destroy@~1.0.4
+    - deps: escape-html@~1.0.3
+    - deps: range-parser@~1.0.3
+
+1.10.0 / 2015-06-17
+===================
+
+  * Add `fallthrough` option
+    - Allows declaring this middleware is the final destination
+    - Provides better integration with Express patterns
+  * Fix reading options from options prototype
+  * Improve the default redirect response headers
+  * deps: escape-html@1.0.2
+  * deps: send@0.13.0
+    - Allow Node.js HTTP server to set `Date` response header
+    - Fix incorrectly removing `Content-Location` on 304 response
+    - Improve the default redirect response headers
+    - Send appropriate headers on default error response
+    - Use `http-errors` for standard emitted errors
+    - Use `statuses` instead of `http` module for status messages
+    - deps: escape-html@1.0.2
+    - deps: etag@~1.7.0
+    - deps: fresh@0.3.0
+    - deps: on-finished@~2.3.0
+    - perf: enable strict mode
+    - perf: remove unnecessary array allocations
+  * perf: enable strict mode
+  * perf: remove argument reassignment
+
+1.9.3 / 2015-05-14
+==================
+
+  * deps: send@0.12.3
+    - deps: debug@~2.2.0
+    - deps: depd@~1.0.1
+    - deps: etag@~1.6.0
+    - deps: ms@0.7.1
+    - deps: on-finished@~2.2.1
+
+1.9.2 / 2015-03-14
+==================
+
+  * deps: send@0.12.2
+    - Throw errors early for invalid `extensions` or `index` options
+    - deps: debug@~2.1.3
+
+1.9.1 / 2015-02-17
+==================
+
+  * deps: send@0.12.1
+    - Fix regression sending zero-length files
+
+1.9.0 / 2015-02-16
+==================
+
+  * deps: send@0.12.0
+    - Always read the stat size from the file
+    - Fix mutating passed-in `options`
+    - deps: mime@1.3.4
+
+1.8.1 / 2015-01-20
+==================
+
+  * Fix redirect loop in Node.js 0.11.14
+  * deps: send@0.11.1
+    - Fix root path disclosure
+
+1.8.0 / 2015-01-05
+==================
+
+  * deps: send@0.11.0
+    - deps: debug@~2.1.1
+    - deps: etag@~1.5.1
+    - deps: ms@0.7.0
+    - deps: on-finished@~2.2.0
+
+1.7.2 / 2015-01-02
+==================
+
+  * Fix potential open redirect when mounted at root
+
+1.7.1 / 2014-10-22
+==================
+
+  * deps: send@0.10.1
+    - deps: on-finished@~2.1.1
+
+1.7.0 / 2014-10-15
+==================
+
+  * deps: send@0.10.0
+    - deps: debug@~2.1.0
+    - deps: depd@~1.0.0
+    - deps: etag@~1.5.0
+
+1.6.5 / 2015-02-04
+==================
+
+  * Fix potential open redirect when mounted at root
+    - Back-ported from v1.7.2
+
+1.6.4 / 2014-10-08
+==================
+
+  * Fix redirect loop when index file serving disabled
+
+1.6.3 / 2014-09-24
+==================
+
+  * deps: send@0.9.3
+    - deps: etag@~1.4.0
+
+1.6.2 / 2014-09-15
+==================
+
+  * deps: send@0.9.2
+    - deps: depd@0.4.5
+    - deps: etag@~1.3.1
+    - deps: range-parser@~1.0.2
+
+1.6.1 / 2014-09-07
+==================
+
+  * deps: send@0.9.1
+    - deps: fresh@0.2.4
+
+1.6.0 / 2014-09-07
+==================
+
+  * deps: send@0.9.0
+    - Add `lastModified` option
+    - Use `etag` to generate `ETag` header
+    - deps: debug@~2.0.0
+
+1.5.4 / 2014-09-04
+==================
+
+  * deps: send@0.8.5
+    - Fix a path traversal issue when using `root`
+    - Fix malicious path detection for empty string path
+
+1.5.3 / 2014-08-17
+==================
+
+  * deps: send@0.8.3
+
+1.5.2 / 2014-08-14
+==================
+
+  * deps: send@0.8.2
+    - Work around `fd` leak in Node.js 0.10 for `fs.ReadStream`
+
+1.5.1 / 2014-08-09
+==================
+
+  * Fix parsing of weird `req.originalUrl` values
+  * deps: parseurl@~1.3.0
+  * deps: utils-merge@1.0.0
+
+1.5.0 / 2014-08-05
+==================
+
+  * deps: send@0.8.1
+    - Add `extensions` option
+
+1.4.4 / 2014-08-04
+==================
+
+  * deps: send@0.7.4
+    - Fix serving index files without root dir
+
+1.4.3 / 2014-07-29
+==================
+
+  * deps: send@0.7.3
+    - Fix incorrect 403 on Windows and Node.js 0.11
+
+1.4.2 / 2014-07-27
+==================
+
+  * deps: send@0.7.2
+    - deps: depd@0.4.4
+
+1.4.1 / 2014-07-26
+==================
+
+  * deps: send@0.7.1
+    - deps: depd@0.4.3
+
+1.4.0 / 2014-07-21
+==================
+
+  * deps: parseurl@~1.2.0
+    - Cache URLs based on original value
+    - Remove no-longer-needed URL mis-parse work-around
+    - Simplify the "fast-path" `RegExp`
+  * deps: send@0.7.0
+    - Add `dotfiles` option
+    - deps: debug@1.0.4
+    - deps: depd@0.4.2
+
+1.3.2 / 2014-07-11
+==================
+
+  * deps: send@0.6.0
+    - Cap `maxAge` value to 1 year
+    - deps: debug@1.0.3
+
+1.3.1 / 2014-07-09
+==================
+
+  * deps: parseurl@~1.1.3
+    - faster parsing of href-only URLs
+
+1.3.0 / 2014-06-28
+==================
+
+  * Add `setHeaders` option
+  * Include HTML link in redirect response
+  * deps: send@0.5.0
+    - Accept string for `maxAge` (converted by `ms`)
+
+1.2.3 / 2014-06-11
+==================
+
+  * deps: send@0.4.3
+    - Do not throw un-catchable error on file open race condition
+    - Use `escape-html` for HTML escaping
+    - deps: debug@1.0.2
+    - deps: finished@1.2.2
+    - deps: fresh@0.2.2
+
+1.2.2 / 2014-06-09
+==================
+
+  * deps: send@0.4.2
+    - fix "event emitter leak" warnings
+    - deps: debug@1.0.1
+    - deps: finished@1.2.1
+
+1.2.1 / 2014-06-02
+==================
+
+  * use `escape-html` for escaping
+  * deps: send@0.4.1
+    - Send `max-age` in `Cache-Control` in correct format
+
+1.2.0 / 2014-05-29
+==================
+
+  * deps: send@0.4.0
+    - Calculate ETag with md5 for reduced collisions
+    - Fix wrong behavior when index file matches directory
+    - Ignore stream errors after request ends
+    - Skip directories in index file search
+    - deps: debug@0.8.1
+
+1.1.0 / 2014-04-24
+==================
+
+  * Accept options directly to `send` module
+  * deps: send@0.3.0
+
+1.0.4 / 2014-04-07
+==================
+
+  * Resolve relative paths at middleware setup
+  * Use parseurl to parse the URL from request
+
+1.0.3 / 2014-03-20
+==================
+
+  * Do not rely on connect-like environments
+
+1.0.2 / 2014-03-06
+==================
+
+  * deps: send@0.2.0
+
+1.0.1 / 2014-03-05
+==================
+
+  * Add mime export for back-compat
+
+1.0.0 / 2014-03-05
+==================
+
+  * Genesis from `connect`
diff --git a/backend/node_modules/serve-static/LICENSE b/backend/node_modules/serve-static/LICENSE
new file mode 100644
index 0000000..cbe62e8
--- /dev/null
+++ b/backend/node_modules/serve-static/LICENSE
@@ -0,0 +1,25 @@
+(The MIT License)
+
+Copyright (c) 2010 Sencha Inc.
+Copyright (c) 2011 LearnBoost
+Copyright (c) 2011 TJ Holowaychuk
+Copyright (c) 2014-2016 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/serve-static/README.md b/backend/node_modules/serve-static/README.md
new file mode 100644
index 0000000..262d944
--- /dev/null
+++ b/backend/node_modules/serve-static/README.md
@@ -0,0 +1,257 @@
+# serve-static
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Linux Build][github-actions-ci-image]][github-actions-ci-url]
+[![Windows Build][appveyor-image]][appveyor-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+## Install
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install serve-static
+```
+
+## API
+
+```js
+var serveStatic = require('serve-static')
+```
+
+### serveStatic(root, options)
+
+Create a new middleware function to serve files from within a given root
+directory. The file to serve will be determined by combining `req.url`
+with the provided root directory. When a file is not found, instead of
+sending a 404 response, this module will instead call `next()` to move on
+to the next middleware, allowing for stacking and fall-backs.
+
+#### Options
+
+##### acceptRanges
+
+Enable or disable accepting ranged requests, defaults to true.
+Disabling this will not send `Accept-Ranges` and ignore the contents
+of the `Range` request header.
+
+##### cacheControl
+
+Enable or disable setting `Cache-Control` response header, defaults to
+true. Disabling this will ignore the `immutable` and `maxAge` options.
+
+##### dotfiles
+
+ Set how "dotfiles" are treated when encountered. A dotfile is a file
+or directory that begins with a dot ("."). Note this check is done on
+the path itself without checking if the path actually exists on the
+disk. If `root` is specified, only the dotfiles above the root are
+checked (i.e. the root itself can be within a dotfile when set
+to "deny").
+
+  - `'allow'` No special treatment for dotfiles.
+  - `'deny'` Deny a request for a dotfile and 403/`next()`.
+  - `'ignore'` Pretend like the dotfile does not exist and 404/`next()`.
+
+The default value is similar to `'ignore'`, with the exception that this
+default will not ignore the files within a directory that begins with a dot.
+
+##### etag
+
+Enable or disable etag generation, defaults to true.
+
+##### extensions
+
+Set file extension fallbacks. When set, if a file is not found, the given
+extensions will be added to the file name and search for. The first that
+exists will be served. Example: `['html', 'htm']`.
+
+The default value is `false`.
+
+##### fallthrough
+
+Set the middleware to have client errors fall-through as just unhandled
+requests, otherwise forward a client error. The difference is that client
+errors like a bad request or a request to a non-existent file will cause
+this middleware to simply `next()` to your next middleware when this value
+is `true`. When this value is `false`, these errors (even 404s), will invoke
+`next(err)`.
+
+Typically `true` is desired such that multiple physical directories can be
+mapped to the same web address or for routes to fill in non-existent files.
+
+The value `false` can be used if this middleware is mounted at a path that
+is designed to be strictly a single file system directory, which allows for
+short-circuiting 404s for less overhead. This middleware will also reply to
+all methods.
+
+The default value is `true`.
+
+##### immutable
+
+Enable or disable the `immutable` directive in the `Cache-Control` response
+header, defaults to `false`. If set to `true`, the `maxAge` option should
+also be specified to enable caching. The `immutable` directive will prevent
+supported clients from making conditional requests during the life of the
+`maxAge` option to check if the file has changed.
+
+##### index
+
+By default this module will send "index.html" files in response to a request
+on a directory. To disable this set `false` or to supply a new index pass a
+string or an array in preferred order.
+
+##### lastModified
+
+Enable or disable `Last-Modified` header, defaults to true. Uses the file
+system's last modified value.
+
+##### maxAge
+
+Provide a max-age in milliseconds for http caching, defaults to 0. This
+can also be a string accepted by the [ms](https://www.npmjs.org/package/ms#readme)
+module.
+
+##### redirect
+
+Redirect to trailing "/" when the pathname is a dir. Defaults to `true`.
+
+##### setHeaders
+
+Function to set custom headers on response. Alterations to the headers need to
+occur synchronously. The function is called as `fn(res, path, stat)`, where
+the arguments are:
+
+  - `res` the response object
+  - `path` the file path that is being sent
+  - `stat` the stat object of the file that is being sent
+
+## Examples
+
+### Serve files with vanilla node.js http server
+
+```js
+var finalhandler = require('finalhandler')
+var http = require('http')
+var serveStatic = require('serve-static')
+
+// Serve up public/ftp folder
+var serve = serveStatic('public/ftp', { index: ['index.html', 'index.htm'] })
+
+// Create server
+var server = http.createServer(function onRequest (req, res) {
+  serve(req, res, finalhandler(req, res))
+})
+
+// Listen
+server.listen(3000)
+```
+
+### Serve all files as downloads
+
+```js
+var contentDisposition = require('content-disposition')
+var finalhandler = require('finalhandler')
+var http = require('http')
+var serveStatic = require('serve-static')
+
+// Serve up public/ftp folder
+var serve = serveStatic('public/ftp', {
+  index: false,
+  setHeaders: setHeaders
+})
+
+// Set header to force download
+function setHeaders (res, path) {
+  res.setHeader('Content-Disposition', contentDisposition(path))
+}
+
+// Create server
+var server = http.createServer(function onRequest (req, res) {
+  serve(req, res, finalhandler(req, res))
+})
+
+// Listen
+server.listen(3000)
+```
+
+### Serving using express
+
+#### Simple
+
+This is a simple example of using Express.
+
+```js
+var express = require('express')
+var serveStatic = require('serve-static')
+
+var app = express()
+
+app.use(serveStatic('public/ftp', { index: ['default.html', 'default.htm'] }))
+app.listen(3000)
+```
+
+#### Multiple roots
+
+This example shows a simple way to search through multiple directories.
+Files are searched for in `public-optimized/` first, then `public/` second
+as a fallback.
+
+```js
+var express = require('express')
+var path = require('path')
+var serveStatic = require('serve-static')
+
+var app = express()
+
+app.use(serveStatic(path.join(__dirname, 'public-optimized')))
+app.use(serveStatic(path.join(__dirname, 'public')))
+app.listen(3000)
+```
+
+#### Different settings for paths
+
+This example shows how to set a different max age depending on the served
+file type. In this example, HTML files are not cached, while everything else
+is for 1 day.
+
+```js
+var express = require('express')
+var path = require('path')
+var serveStatic = require('serve-static')
+
+var app = express()
+
+app.use(serveStatic(path.join(__dirname, 'public'), {
+  maxAge: '1d',
+  setHeaders: setCustomCacheControl
+}))
+
+app.listen(3000)
+
+function setCustomCacheControl (res, path) {
+  if (serveStatic.mime.lookup(path) === 'text/html') {
+    // Custom Cache-Control for HTML files
+    res.setHeader('Cache-Control', 'public, max-age=0')
+  }
+}
+```
+
+## License
+
+[MIT](LICENSE)
+
+[appveyor-image]: https://badgen.net/appveyor/ci/dougwilson/serve-static/master?label=windows
+[appveyor-url]: https://ci.appveyor.com/project/dougwilson/serve-static
+[coveralls-image]: https://badgen.net/coveralls/c/github/expressjs/serve-static/master
+[coveralls-url]: https://coveralls.io/r/expressjs/serve-static?branch=master
+[github-actions-ci-image]: https://badgen.net/github/checks/expressjs/serve-static/master?label=linux
+[github-actions-ci-url]: https://github.com/expressjs/serve-static/actions/workflows/ci.yml
+[node-image]: https://badgen.net/npm/node/serve-static
+[node-url]: https://nodejs.org/en/download/
+[npm-downloads-image]: https://badgen.net/npm/dm/serve-static
+[npm-url]: https://npmjs.org/package/serve-static
+[npm-version-image]: https://badgen.net/npm/v/serve-static
diff --git a/backend/node_modules/serve-static/index.js b/backend/node_modules/serve-static/index.js
new file mode 100644
index 0000000..3f3e64e
--- /dev/null
+++ b/backend/node_modules/serve-static/index.js
@@ -0,0 +1,209 @@
+/*!
+ * serve-static
+ * Copyright(c) 2010 Sencha Inc.
+ * Copyright(c) 2011 TJ Holowaychuk
+ * Copyright(c) 2014-2016 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var encodeUrl = require('encodeurl')
+var escapeHtml = require('escape-html')
+var parseUrl = require('parseurl')
+var resolve = require('path').resolve
+var send = require('send')
+var url = require('url')
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = serveStatic
+module.exports.mime = send.mime
+
+/**
+ * @param {string} root
+ * @param {object} [options]
+ * @return {function}
+ * @public
+ */
+
+function serveStatic (root, options) {
+  if (!root) {
+    throw new TypeError('root path required')
+  }
+
+  if (typeof root !== 'string') {
+    throw new TypeError('root path must be a string')
+  }
+
+  // copy options object
+  var opts = Object.create(options || null)
+
+  // fall-though
+  var fallthrough = opts.fallthrough !== false
+
+  // default redirect
+  var redirect = opts.redirect !== false
+
+  // headers listener
+  var setHeaders = opts.setHeaders
+
+  if (setHeaders && typeof setHeaders !== 'function') {
+    throw new TypeError('option setHeaders must be function')
+  }
+
+  // setup options for send
+  opts.maxage = opts.maxage || opts.maxAge || 0
+  opts.root = resolve(root)
+
+  // construct directory listener
+  var onDirectory = redirect
+    ? createRedirectDirectoryListener()
+    : createNotFoundDirectoryListener()
+
+  return function serveStatic (req, res, next) {
+    if (req.method !== 'GET' && req.method !== 'HEAD') {
+      if (fallthrough) {
+        return next()
+      }
+
+      // method not allowed
+      res.statusCode = 405
+      res.setHeader('Allow', 'GET, HEAD')
+      res.setHeader('Content-Length', '0')
+      res.end()
+      return
+    }
+
+    var forwardError = !fallthrough
+    var originalUrl = parseUrl.original(req)
+    var path = parseUrl(req).pathname
+
+    // make sure redirect occurs at mount
+    if (path === '/' && originalUrl.pathname.substr(-1) !== '/') {
+      path = ''
+    }
+
+    // create send stream
+    var stream = send(req, path, opts)
+
+    // add directory handler
+    stream.on('directory', onDirectory)
+
+    // add headers listener
+    if (setHeaders) {
+      stream.on('headers', setHeaders)
+    }
+
+    // add file listener for fallthrough
+    if (fallthrough) {
+      stream.on('file', function onFile () {
+        // once file is determined, always forward error
+        forwardError = true
+      })
+    }
+
+    // forward errors
+    stream.on('error', function error (err) {
+      if (forwardError || !(err.statusCode < 500)) {
+        next(err)
+        return
+      }
+
+      next()
+    })
+
+    // pipe
+    stream.pipe(res)
+  }
+}
+
+/**
+ * Collapse all leading slashes into a single slash
+ * @private
+ */
+function collapseLeadingSlashes (str) {
+  for (var i = 0; i < str.length; i++) {
+    if (str.charCodeAt(i) !== 0x2f /* / */) {
+      break
+    }
+  }
+
+  return i > 1
+    ? '/' + str.substr(i)
+    : str
+}
+
+/**
+ * Create a minimal HTML document.
+ *
+ * @param {string} title
+ * @param {string} body
+ * @private
+ */
+
+function createHtmlDocument (title, body) {
+  return '<!DOCTYPE html>\n' +
+    '<html lang="en">\n' +
+    '<head>\n' +
+    '<meta charset="utf-8">\n' +
+    '<title>' + title + '</title>\n' +
+    '</head>\n' +
+    '<body>\n' +
+    '<pre>' + body + '</pre>\n' +
+    '</body>\n' +
+    '</html>\n'
+}
+
+/**
+ * Create a directory listener that just 404s.
+ * @private
+ */
+
+function createNotFoundDirectoryListener () {
+  return function notFound () {
+    this.error(404)
+  }
+}
+
+/**
+ * Create a directory listener that performs a redirect.
+ * @private
+ */
+
+function createRedirectDirectoryListener () {
+  return function redirect (res) {
+    if (this.hasTrailingSlash()) {
+      this.error(404)
+      return
+    }
+
+    // get original URL
+    var originalUrl = parseUrl.original(this.req)
+
+    // append trailing slash
+    originalUrl.path = null
+    originalUrl.pathname = collapseLeadingSlashes(originalUrl.pathname + '/')
+
+    // reformat the URL
+    var loc = encodeUrl(url.format(originalUrl))
+    var doc = createHtmlDocument('Redirecting', 'Redirecting to ' + escapeHtml(loc))
+
+    // send redirect response
+    res.statusCode = 301
+    res.setHeader('Content-Type', 'text/html; charset=UTF-8')
+    res.setHeader('Content-Length', Buffer.byteLength(doc))
+    res.setHeader('Content-Security-Policy', "default-src 'none'")
+    res.setHeader('X-Content-Type-Options', 'nosniff')
+    res.setHeader('Location', loc)
+    res.end(doc)
+  }
+}
diff --git a/backend/node_modules/serve-static/package.json b/backend/node_modules/serve-static/package.json
new file mode 100644
index 0000000..49d7542
--- /dev/null
+++ b/backend/node_modules/serve-static/package.json
@@ -0,0 +1,42 @@
+{
+  "name": "serve-static",
+  "description": "Serve static files",
+  "version": "1.16.2",
+  "author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
+  "license": "MIT",
+  "repository": "expressjs/serve-static",
+  "dependencies": {
+    "encodeurl": "~2.0.0",
+    "escape-html": "~1.0.3",
+    "parseurl": "~1.3.3",
+    "send": "0.19.0"
+  },
+  "devDependencies": {
+    "eslint": "7.32.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.25.4",
+    "eslint-plugin-markdown": "2.2.1",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "5.2.0",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "9.2.2",
+    "nyc": "15.1.0",
+    "safe-buffer": "5.2.1",
+    "supertest": "6.2.2"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.8.0"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "version": "node scripts/version-history.js && git add HISTORY.md"
+  }
+}
diff --git a/backend/node_modules/setprototypeof/LICENSE b/backend/node_modules/setprototypeof/LICENSE
new file mode 100644
index 0000000..61afa2f
--- /dev/null
+++ b/backend/node_modules/setprototypeof/LICENSE
@@ -0,0 +1,13 @@
+Copyright (c) 2015, Wes Todd
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/backend/node_modules/setprototypeof/README.md b/backend/node_modules/setprototypeof/README.md
new file mode 100644
index 0000000..791eeff
--- /dev/null
+++ b/backend/node_modules/setprototypeof/README.md
@@ -0,0 +1,31 @@
+# Polyfill for `Object.setPrototypeOf`
+
+[![NPM Version](https://img.shields.io/npm/v/setprototypeof.svg)](https://npmjs.org/package/setprototypeof)
+[![NPM Downloads](https://img.shields.io/npm/dm/setprototypeof.svg)](https://npmjs.org/package/setprototypeof)
+[![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg)](https://github.com/standard/standard)
+
+A simple cross platform implementation to set the prototype of an instianted object.  Supports all modern browsers and at least back to IE8.
+
+## Usage:
+
+```
+$ npm install --save setprototypeof
+```
+
+```javascript
+var setPrototypeOf = require('setprototypeof')
+
+var obj = {}
+setPrototypeOf(obj, {
+  foo: function () {
+    return 'bar'
+  }
+})
+obj.foo() // bar
+```
+
+TypeScript is also supported:
+
+```typescript
+import setPrototypeOf from 'setprototypeof'
+```
diff --git a/backend/node_modules/setprototypeof/index.d.ts b/backend/node_modules/setprototypeof/index.d.ts
new file mode 100644
index 0000000..f108ecd
--- /dev/null
+++ b/backend/node_modules/setprototypeof/index.d.ts
@@ -0,0 +1,2 @@
+declare function setPrototypeOf(o: any, proto: object | null): any;
+export = setPrototypeOf;
diff --git a/backend/node_modules/setprototypeof/index.js b/backend/node_modules/setprototypeof/index.js
new file mode 100644
index 0000000..c527055
--- /dev/null
+++ b/backend/node_modules/setprototypeof/index.js
@@ -0,0 +1,17 @@
+'use strict'
+/* eslint no-proto: 0 */
+module.exports = Object.setPrototypeOf || ({ __proto__: [] } instanceof Array ? setProtoOf : mixinProperties)
+
+function setProtoOf (obj, proto) {
+  obj.__proto__ = proto
+  return obj
+}
+
+function mixinProperties (obj, proto) {
+  for (var prop in proto) {
+    if (!Object.prototype.hasOwnProperty.call(obj, prop)) {
+      obj[prop] = proto[prop]
+    }
+  }
+  return obj
+}
diff --git a/backend/node_modules/setprototypeof/package.json b/backend/node_modules/setprototypeof/package.json
new file mode 100644
index 0000000..f20915b
--- /dev/null
+++ b/backend/node_modules/setprototypeof/package.json
@@ -0,0 +1,38 @@
+{
+  "name": "setprototypeof",
+  "version": "1.2.0",
+  "description": "A small polyfill for Object.setprototypeof",
+  "main": "index.js",
+  "typings": "index.d.ts",
+  "scripts": {
+    "test": "standard && mocha",
+    "testallversions": "npm run node010 && npm run node4 && npm run node6 && npm run node9 && npm run node11",
+    "testversion": "docker run -it --rm -v $(PWD):/usr/src/app -w /usr/src/app node:${NODE_VER} npm install mocha@${MOCHA_VER:-latest} && npm t",
+    "node010": "NODE_VER=0.10 MOCHA_VER=3 npm run testversion",
+    "node4": "NODE_VER=4 npm run testversion",
+    "node6": "NODE_VER=6 npm run testversion",
+    "node9": "NODE_VER=9 npm run testversion",
+    "node11": "NODE_VER=11 npm run testversion",
+    "prepublishOnly": "npm t",
+    "postpublish": "git push origin && git push origin --tags"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/wesleytodd/setprototypeof.git"
+  },
+  "keywords": [
+    "polyfill",
+    "object",
+    "setprototypeof"
+  ],
+  "author": "Wes Todd",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/wesleytodd/setprototypeof/issues"
+  },
+  "homepage": "https://github.com/wesleytodd/setprototypeof",
+  "devDependencies": {
+    "mocha": "^6.1.4",
+    "standard": "^13.0.2"
+  }
+}
diff --git a/backend/node_modules/setprototypeof/test/index.js b/backend/node_modules/setprototypeof/test/index.js
new file mode 100644
index 0000000..afeb4dd
--- /dev/null
+++ b/backend/node_modules/setprototypeof/test/index.js
@@ -0,0 +1,24 @@
+'use strict'
+/* eslint-env mocha */
+/* eslint no-proto: 0 */
+var assert = require('assert')
+var setPrototypeOf = require('..')
+
+describe('setProtoOf(obj, proto)', function () {
+  it('should merge objects', function () {
+    var obj = { a: 1, b: 2 }
+    var proto = { b: 3, c: 4 }
+    var mergeObj = setPrototypeOf(obj, proto)
+
+    if (Object.getPrototypeOf) {
+      assert.strictEqual(Object.getPrototypeOf(obj), proto)
+    } else if ({ __proto__: [] } instanceof Array) {
+      assert.strictEqual(obj.__proto__, proto)
+    } else {
+      assert.strictEqual(obj.a, 1)
+      assert.strictEqual(obj.b, 2)
+      assert.strictEqual(obj.c, 4)
+    }
+    assert.strictEqual(mergeObj, obj)
+  })
+})
diff --git a/backend/node_modules/side-channel-list/.editorconfig b/backend/node_modules/side-channel-list/.editorconfig
new file mode 100644
index 0000000..72e0eba
--- /dev/null
+++ b/backend/node_modules/side-channel-list/.editorconfig
@@ -0,0 +1,9 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+indent_style = tab
+indent_size = 2
+trim_trailing_whitespace = true
diff --git a/backend/node_modules/side-channel-list/.eslintrc b/backend/node_modules/side-channel-list/.eslintrc
new file mode 100644
index 0000000..93978e7
--- /dev/null
+++ b/backend/node_modules/side-channel-list/.eslintrc
@@ -0,0 +1,11 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"max-lines-per-function": 0,
+		"multiline-comment-style": 1,
+		"new-cap": [2, { "capIsNewExceptions": ["GetIntrinsic"] }],
+	},
+}
diff --git a/backend/node_modules/side-channel-list/.github/FUNDING.yml b/backend/node_modules/side-channel-list/.github/FUNDING.yml
new file mode 100644
index 0000000..eaff735
--- /dev/null
+++ b/backend/node_modules/side-channel-list/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/side-channel-list
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/side-channel-list/.nycrc b/backend/node_modules/side-channel-list/.nycrc
new file mode 100644
index 0000000..1826526
--- /dev/null
+++ b/backend/node_modules/side-channel-list/.nycrc
@@ -0,0 +1,13 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"lines": 86,
+	"statements": 85.93,
+	"functions": 82.43,
+	"branches": 76.06,
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/side-channel-list/CHANGELOG.md b/backend/node_modules/side-channel-list/CHANGELOG.md
new file mode 100644
index 0000000..2ec51b7
--- /dev/null
+++ b/backend/node_modules/side-channel-list/CHANGELOG.md
@@ -0,0 +1,15 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## v1.0.0 - 2024-12-10
+
+### Commits
+
+- Initial implementation, tests, readme, types [`5d6baee`](https://github.com/ljharb/side-channel-list/commit/5d6baee5c9054a1238007f5a1dfc109a7a816251)
+- Initial commit [`3ae784c`](https://github.com/ljharb/side-channel-list/commit/3ae784c63a47895fbaeed2a91ab54a8029a7a100)
+- npm init [`07055a4`](https://github.com/ljharb/side-channel-list/commit/07055a4d139895565b199dba5fe2479c1a1b9e28)
+- Only apps should have lockfiles [`9573058`](https://github.com/ljharb/side-channel-list/commit/9573058a47494e2d68f8c6c77b5d7fbe441949c1)
diff --git a/backend/node_modules/side-channel-list/LICENSE b/backend/node_modules/side-channel-list/LICENSE
new file mode 100644
index 0000000..f82f389
--- /dev/null
+++ b/backend/node_modules/side-channel-list/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/side-channel-list/README.md b/backend/node_modules/side-channel-list/README.md
new file mode 100644
index 0000000..d9c7a13
--- /dev/null
+++ b/backend/node_modules/side-channel-list/README.md
@@ -0,0 +1,62 @@
+# side-channel-list <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+Store information about any JS value in a side channel, using a linked list.
+
+Warning: this implementation will leak memory until you `delete` the `key`.
+Use [`side-channel`](https://npmjs.com/side-channel) for the best available strategy.
+
+## Getting started
+
+```sh
+npm install --save side-channel-list
+```
+
+## Usage/Examples
+
+```js
+const assert = require('assert');
+const getSideChannelList = require('side-channel-list');
+
+const channel = getSideChannelList();
+
+const key = {};
+assert.equal(channel.has(key), false);
+assert.throws(() => channel.assert(key), TypeError);
+
+channel.set(key, 42);
+
+channel.assert(key); // does not throw
+assert.equal(channel.has(key), true);
+assert.equal(channel.get(key), 42);
+
+channel.delete(key);
+assert.equal(channel.has(key), false);
+assert.throws(() => channel.assert(key), TypeError);
+```
+
+## Tests
+
+Clone the repo, `npm install`, and run `npm test`
+
+[package-url]: https://npmjs.org/package/side-channel-list
+[npm-version-svg]: https://versionbadg.es/ljharb/side-channel-list.svg
+[deps-svg]: https://david-dm.org/ljharb/side-channel-list.svg
+[deps-url]: https://david-dm.org/ljharb/side-channel-list
+[dev-deps-svg]: https://david-dm.org/ljharb/side-channel-list/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/side-channel-list#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/side-channel-list.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/side-channel-list.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/side-channel-list.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=side-channel-list
+[codecov-image]: https://codecov.io/gh/ljharb/side-channel-list/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/side-channel-list/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/side-channel-list
+[actions-url]: https://github.com/ljharb/side-channel-list/actions
diff --git a/backend/node_modules/side-channel-list/index.d.ts b/backend/node_modules/side-channel-list/index.d.ts
new file mode 100644
index 0000000..c9cabc8
--- /dev/null
+++ b/backend/node_modules/side-channel-list/index.d.ts
@@ -0,0 +1,13 @@
+declare namespace getSideChannelList {
+	type Channel<K, V> = {
+		assert: (key: K) => void;
+		has: (key: K) => boolean;
+		get: (key: K) => V | undefined;
+		set: (key: K, value: V) => void;
+		delete: (key: K) => boolean;
+	};
+}
+
+declare function getSideChannelList<V, K>(): getSideChannelList.Channel<K, V>;
+
+export = getSideChannelList;
diff --git a/backend/node_modules/side-channel-list/index.js b/backend/node_modules/side-channel-list/index.js
new file mode 100644
index 0000000..8d6f98c
--- /dev/null
+++ b/backend/node_modules/side-channel-list/index.js
@@ -0,0 +1,113 @@
+'use strict';
+
+var inspect = require('object-inspect');
+
+var $TypeError = require('es-errors/type');
+
+/*
+* This function traverses the list returning the node corresponding to the given key.
+*
+* That node is also moved to the head of the list, so that if it's accessed again we don't need to traverse the whole list.
+* By doing so, all the recently used nodes can be accessed relatively quickly.
+*/
+/** @type {import('./list.d.ts').listGetNode} */
+// eslint-disable-next-line consistent-return
+var listGetNode = function (list, key, isDelete) {
+	/** @type {typeof list | NonNullable<(typeof list)['next']>} */
+	var prev = list;
+	/** @type {(typeof list)['next']} */
+	var curr;
+	// eslint-disable-next-line eqeqeq
+	for (; (curr = prev.next) != null; prev = curr) {
+		if (curr.key === key) {
+			prev.next = curr.next;
+			if (!isDelete) {
+				// eslint-disable-next-line no-extra-parens
+				curr.next = /** @type {NonNullable<typeof list.next>} */ (list.next);
+				list.next = curr; // eslint-disable-line no-param-reassign
+			}
+			return curr;
+		}
+	}
+};
+
+/** @type {import('./list.d.ts').listGet} */
+var listGet = function (objects, key) {
+	if (!objects) {
+		return void undefined;
+	}
+	var node = listGetNode(objects, key);
+	return node && node.value;
+};
+/** @type {import('./list.d.ts').listSet} */
+var listSet = function (objects, key, value) {
+	var node = listGetNode(objects, key);
+	if (node) {
+		node.value = value;
+	} else {
+		// Prepend the new node to the beginning of the list
+		objects.next = /** @type {import('./list.d.ts').ListNode<typeof value, typeof key>} */ ({ // eslint-disable-line no-param-reassign, no-extra-parens
+			key: key,
+			next: objects.next,
+			value: value
+		});
+	}
+};
+/** @type {import('./list.d.ts').listHas} */
+var listHas = function (objects, key) {
+	if (!objects) {
+		return false;
+	}
+	return !!listGetNode(objects, key);
+};
+/** @type {import('./list.d.ts').listDelete} */
+// eslint-disable-next-line consistent-return
+var listDelete = function (objects, key) {
+	if (objects) {
+		return listGetNode(objects, key, true);
+	}
+};
+
+/** @type {import('.')} */
+module.exports = function getSideChannelList() {
+	/** @typedef {ReturnType<typeof getSideChannelList>} Channel */
+	/** @typedef {Parameters<Channel['get']>[0]} K */
+	/** @typedef {Parameters<Channel['set']>[1]} V */
+
+	/** @type {import('./list.d.ts').RootNode<V, K> | undefined} */ var $o;
+
+	/** @type {Channel} */
+	var channel = {
+		assert: function (key) {
+			if (!channel.has(key)) {
+				throw new $TypeError('Side channel does not contain ' + inspect(key));
+			}
+		},
+		'delete': function (key) {
+			var root = $o && $o.next;
+			var deletedNode = listDelete($o, key);
+			if (deletedNode && root && root === deletedNode) {
+				$o = void undefined;
+			}
+			return !!deletedNode;
+		},
+		get: function (key) {
+			return listGet($o, key);
+		},
+		has: function (key) {
+			return listHas($o, key);
+		},
+		set: function (key, value) {
+			if (!$o) {
+				// Initialize the linked list as an empty node, so that we don't have to special-case handling of the first node: we can always refer to it as (previous node).next, instead of something like (list).head
+				$o = {
+					next: void undefined
+				};
+			}
+			// eslint-disable-next-line no-extra-parens
+			listSet(/** @type {NonNullable<typeof $o>} */ ($o), key, value);
+		}
+	};
+	// @ts-expect-error TODO: figure out why this is erroring
+	return channel;
+};
diff --git a/backend/node_modules/side-channel-list/list.d.ts b/backend/node_modules/side-channel-list/list.d.ts
new file mode 100644
index 0000000..2c759e2
--- /dev/null
+++ b/backend/node_modules/side-channel-list/list.d.ts
@@ -0,0 +1,14 @@
+type ListNode<T, K> = {
+	key: K;
+	next: undefined | ListNode<T, K>;
+	value: T;
+};
+type RootNode<T, K> = {
+	next: undefined | ListNode<T, K>;
+};
+
+export function listGetNode<T, K>(list: RootNode<T, K>, key: ListNode<T, K>['key'], isDelete?: boolean): ListNode<T, K> | undefined;
+export function listGet<T, K>(objects: undefined | RootNode<T, K>, key: ListNode<T, K>['key']): T | undefined;
+export function listSet<T, K>(objects: RootNode<T, K>, key: ListNode<T, K>['key'], value: T): void;
+export function listHas<T, K>(objects: undefined | RootNode<T, K>, key: ListNode<T, K>['key']): boolean;
+export function listDelete<T, K>(objects: undefined | RootNode<T, K>, key: ListNode<T, K>['key']): ListNode<T, K> | undefined;
diff --git a/backend/node_modules/side-channel-list/package.json b/backend/node_modules/side-channel-list/package.json
new file mode 100644
index 0000000..ba0f5c5
--- /dev/null
+++ b/backend/node_modules/side-channel-list/package.json
@@ -0,0 +1,77 @@
+{
+	"name": "side-channel-list",
+	"version": "1.0.0",
+	"description": "Store information about any JS value in a side channel, using a linked list",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./package.json": "./package.json"
+	},
+	"types": "./index.d.ts",
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublishOnly": "safe-publish-latest",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prelint": "evalmd README.md && eclint check $(git ls-files | xargs find 2> /dev/null | grep -vE 'node_modules|\\.git')",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "tsc -p . && attw -P",
+		"pretest": "npm run lint",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@'>= 10.2' audit --production",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/side-channel-list.git"
+	},
+	"keywords": [],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"funding": {
+		"url": "https://github.com/sponsors/ljharb"
+	},
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/side-channel-list/issues"
+	},
+	"homepage": "https://github.com/ljharb/side-channel-list#readme",
+	"dependencies": {
+		"es-errors": "^1.3.0",
+		"object-inspect": "^1.13.3"
+	},
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.17.1",
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.2",
+		"@types/object-inspect": "^1.13.0",
+		"@types/tape": "^5.6.5",
+		"auto-changelog": "^2.5.0",
+		"eclint": "^2.8.1",
+		"encoding": "^0.1.13",
+		"eslint": "=8.8.0",
+		"evalmd": "^0.0.19",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/backend/node_modules/side-channel-list/test/index.js b/backend/node_modules/side-channel-list/test/index.js
new file mode 100644
index 0000000..3ad4368
--- /dev/null
+++ b/backend/node_modules/side-channel-list/test/index.js
@@ -0,0 +1,104 @@
+'use strict';
+
+var test = require('tape');
+
+var getSideChannelList = require('../');
+
+test('getSideChannelList', function (t) {
+	t.test('export', function (st) {
+		st.equal(typeof getSideChannelList, 'function', 'is a function');
+
+		st.equal(getSideChannelList.length, 0, 'takes no arguments');
+
+		var channel = getSideChannelList();
+		st.ok(channel, 'is truthy');
+		st.equal(typeof channel, 'object', 'is an object');
+		st.end();
+	});
+
+	t.test('assert', function (st) {
+		var channel = getSideChannelList();
+		st['throws'](
+			function () { channel.assert({}); },
+			TypeError,
+			'nonexistent value throws'
+		);
+
+		var o = {};
+		channel.set(o, 'data');
+		st.doesNotThrow(function () { channel.assert(o); }, 'existent value noops');
+
+		st.end();
+	});
+
+	t.test('has', function (st) {
+		var channel = getSideChannelList();
+		/** @type {unknown[]} */ var o = [];
+
+		st.equal(channel.has(o), false, 'nonexistent value yields false');
+
+		channel.set(o, 'foo');
+		st.equal(channel.has(o), true, 'existent value yields true');
+
+		st.equal(channel.has('abc'), false, 'non object value non existent yields false');
+
+		channel.set('abc', 'foo');
+		st.equal(channel.has('abc'), true, 'non object value that exists yields true');
+
+		st.end();
+	});
+
+	t.test('get', function (st) {
+		var channel = getSideChannelList();
+		var o = {};
+		st.equal(channel.get(o), undefined, 'nonexistent value yields undefined');
+
+		var data = {};
+		channel.set(o, data);
+		st.equal(channel.get(o), data, '"get" yields data set by "set"');
+
+		st.end();
+	});
+
+	t.test('set', function (st) {
+		var channel = getSideChannelList();
+		var o = function () {};
+		st.equal(channel.get(o), undefined, 'value not set');
+
+		channel.set(o, 42);
+		st.equal(channel.get(o), 42, 'value was set');
+
+		channel.set(o, Infinity);
+		st.equal(channel.get(o), Infinity, 'value was set again');
+
+		var o2 = {};
+		channel.set(o2, 17);
+		st.equal(channel.get(o), Infinity, 'o is not modified');
+		st.equal(channel.get(o2), 17, 'o2 is set');
+
+		channel.set(o, 14);
+		st.equal(channel.get(o), 14, 'o is modified');
+		st.equal(channel.get(o2), 17, 'o2 is not modified');
+
+		st.end();
+	});
+
+	t.test('delete', function (st) {
+		var channel = getSideChannelList();
+		var o = {};
+		st.equal(channel['delete']({}), false, 'nonexistent value yields false');
+
+		channel.set(o, 42);
+		st.equal(channel.has(o), true, 'value is set');
+
+		st.equal(channel['delete']({}), false, 'nonexistent value still yields false');
+
+		st.equal(channel['delete'](o), true, 'deleted value yields true');
+
+		st.equal(channel.has(o), false, 'value is no longer set');
+
+		st.end();
+	});
+
+	t.end();
+});
diff --git a/backend/node_modules/side-channel-list/tsconfig.json b/backend/node_modules/side-channel-list/tsconfig.json
new file mode 100644
index 0000000..d9a6668
--- /dev/null
+++ b/backend/node_modules/side-channel-list/tsconfig.json
@@ -0,0 +1,9 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		"target": "es2021",
+	},
+	"exclude": [
+		"coverage",
+	],
+}
diff --git a/backend/node_modules/side-channel-map/.editorconfig b/backend/node_modules/side-channel-map/.editorconfig
new file mode 100644
index 0000000..72e0eba
--- /dev/null
+++ b/backend/node_modules/side-channel-map/.editorconfig
@@ -0,0 +1,9 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+indent_style = tab
+indent_size = 2
+trim_trailing_whitespace = true
diff --git a/backend/node_modules/side-channel-map/.eslintrc b/backend/node_modules/side-channel-map/.eslintrc
new file mode 100644
index 0000000..93978e7
--- /dev/null
+++ b/backend/node_modules/side-channel-map/.eslintrc
@@ -0,0 +1,11 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"max-lines-per-function": 0,
+		"multiline-comment-style": 1,
+		"new-cap": [2, { "capIsNewExceptions": ["GetIntrinsic"] }],
+	},
+}
diff --git a/backend/node_modules/side-channel-map/.github/FUNDING.yml b/backend/node_modules/side-channel-map/.github/FUNDING.yml
new file mode 100644
index 0000000..f2891bd
--- /dev/null
+++ b/backend/node_modules/side-channel-map/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/side-channel-map
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/side-channel-map/.nycrc b/backend/node_modules/side-channel-map/.nycrc
new file mode 100644
index 0000000..1826526
--- /dev/null
+++ b/backend/node_modules/side-channel-map/.nycrc
@@ -0,0 +1,13 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"lines": 86,
+	"statements": 85.93,
+	"functions": 82.43,
+	"branches": 76.06,
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/side-channel-map/CHANGELOG.md b/backend/node_modules/side-channel-map/CHANGELOG.md
new file mode 100644
index 0000000..b6ccea9
--- /dev/null
+++ b/backend/node_modules/side-channel-map/CHANGELOG.md
@@ -0,0 +1,22 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.0.1](https://github.com/ljharb/side-channel-map/compare/v1.0.0...v1.0.1) - 2024-12-10
+
+### Commits
+
+- [Deps] update `call-bound` [`6d05aaa`](https://github.com/ljharb/side-channel-map/commit/6d05aaa4ce5f2be4e7825df433d650696f0ba40f)
+- [types] fix generics ordering [`11c0184`](https://github.com/ljharb/side-channel-map/commit/11c0184132ac11fdc16857e12682e148e5e9ee74)
+
+## v1.0.0 - 2024-12-10
+
+### Commits
+
+- Initial implementation, tests, readme, types [`ad877b4`](https://github.com/ljharb/side-channel-map/commit/ad877b42926d46d63fff76a2bd01d2b4a01959a9)
+- Initial commit [`28f8879`](https://github.com/ljharb/side-channel-map/commit/28f8879c512abe8fcf9b6a4dc7754a0287e5eba4)
+- npm init [`2c9604e`](https://github.com/ljharb/side-channel-map/commit/2c9604e5aa40223e425ea7cea78f8a07697504bd)
+- Only apps should have lockfiles [`5e7ba9c`](https://github.com/ljharb/side-channel-map/commit/5e7ba9cffe3ef42095815adc8ac1255b49bbadf5)
diff --git a/backend/node_modules/side-channel-map/LICENSE b/backend/node_modules/side-channel-map/LICENSE
new file mode 100644
index 0000000..f82f389
--- /dev/null
+++ b/backend/node_modules/side-channel-map/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/side-channel-map/README.md b/backend/node_modules/side-channel-map/README.md
new file mode 100644
index 0000000..8fa6f77
--- /dev/null
+++ b/backend/node_modules/side-channel-map/README.md
@@ -0,0 +1,62 @@
+# side-channel-map <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+Store information about any JS value in a side channel, using a Map.
+
+Warning: if the `key` is an object, this implementation will leak memory until you `delete` it.
+Use [`side-channel`](https://npmjs.com/side-channel) for the best available strategy.
+
+## Getting started
+
+```sh
+npm install --save side-channel-map
+```
+
+## Usage/Examples
+
+```js
+const assert = require('assert');
+const getSideChannelMap = require('side-channel-map');
+
+const channel = getSideChannelMap();
+
+const key = {};
+assert.equal(channel.has(key), false);
+assert.throws(() => channel.assert(key), TypeError);
+
+channel.set(key, 42);
+
+channel.assert(key); // does not throw
+assert.equal(channel.has(key), true);
+assert.equal(channel.get(key), 42);
+
+channel.delete(key);
+assert.equal(channel.has(key), false);
+assert.throws(() => channel.assert(key), TypeError);
+```
+
+## Tests
+
+Clone the repo, `npm install`, and run `npm test`
+
+[package-url]: https://npmjs.org/package/side-channel-map
+[npm-version-svg]: https://versionbadg.es/ljharb/side-channel-map.svg
+[deps-svg]: https://david-dm.org/ljharb/side-channel-map.svg
+[deps-url]: https://david-dm.org/ljharb/side-channel-map
+[dev-deps-svg]: https://david-dm.org/ljharb/side-channel-map/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/side-channel-map#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/side-channel-map.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/side-channel-map.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/side-channel-map.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=side-channel-map
+[codecov-image]: https://codecov.io/gh/ljharb/side-channel-map/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/side-channel-map/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/side-channel-map
+[actions-url]: https://github.com/ljharb/side-channel-map/actions
diff --git a/backend/node_modules/side-channel-map/index.d.ts b/backend/node_modules/side-channel-map/index.d.ts
new file mode 100644
index 0000000..de33e89
--- /dev/null
+++ b/backend/node_modules/side-channel-map/index.d.ts
@@ -0,0 +1,15 @@
+declare namespace getSideChannelMap {
+	type Channel<K, V> = {
+		assert: (key: K) => void;
+		has: (key: K) => boolean;
+		get: (key: K) => V | undefined;
+		set: (key: K, value: V) => void;
+		delete: (key: K) => boolean;
+	};
+}
+
+declare function getSideChannelMap<K, V>(): getSideChannelMap.Channel<K, V>;
+
+declare const x: false | typeof getSideChannelMap;
+
+export = x;
diff --git a/backend/node_modules/side-channel-map/index.js b/backend/node_modules/side-channel-map/index.js
new file mode 100644
index 0000000..e111100
--- /dev/null
+++ b/backend/node_modules/side-channel-map/index.js
@@ -0,0 +1,68 @@
+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+var callBound = require('call-bound');
+var inspect = require('object-inspect');
+
+var $TypeError = require('es-errors/type');
+var $Map = GetIntrinsic('%Map%', true);
+
+/** @type {<K, V>(thisArg: Map<K, V>, key: K) => V} */
+var $mapGet = callBound('Map.prototype.get', true);
+/** @type {<K, V>(thisArg: Map<K, V>, key: K, value: V) => void} */
+var $mapSet = callBound('Map.prototype.set', true);
+/** @type {<K, V>(thisArg: Map<K, V>, key: K) => boolean} */
+var $mapHas = callBound('Map.prototype.has', true);
+/** @type {<K, V>(thisArg: Map<K, V>, key: K) => boolean} */
+var $mapDelete = callBound('Map.prototype.delete', true);
+/** @type {<K, V>(thisArg: Map<K, V>) => number} */
+var $mapSize = callBound('Map.prototype.size', true);
+
+/** @type {import('.')} */
+module.exports = !!$Map && /** @type {Exclude<import('.'), false>} */ function getSideChannelMap() {
+	/** @typedef {ReturnType<typeof getSideChannelMap>} Channel */
+	/** @typedef {Parameters<Channel['get']>[0]} K */
+	/** @typedef {Parameters<Channel['set']>[1]} V */
+
+	/** @type {Map<K, V> | undefined} */ var $m;
+
+	/** @type {Channel} */
+	var channel = {
+		assert: function (key) {
+			if (!channel.has(key)) {
+				throw new $TypeError('Side channel does not contain ' + inspect(key));
+			}
+		},
+		'delete': function (key) {
+			if ($m) {
+				var result = $mapDelete($m, key);
+				if ($mapSize($m) === 0) {
+					$m = void undefined;
+				}
+				return result;
+			}
+			return false;
+		},
+		get: function (key) { // eslint-disable-line consistent-return
+			if ($m) {
+				return $mapGet($m, key);
+			}
+		},
+		has: function (key) {
+			if ($m) {
+				return $mapHas($m, key);
+			}
+			return false;
+		},
+		set: function (key, value) {
+			if (!$m) {
+				// @ts-expect-error TS can't handle narrowing a variable inside a closure
+				$m = new $Map();
+			}
+			$mapSet($m, key, value);
+		}
+	};
+
+	// @ts-expect-error TODO: figure out why TS is erroring here
+	return channel;
+};
diff --git a/backend/node_modules/side-channel-map/package.json b/backend/node_modules/side-channel-map/package.json
new file mode 100644
index 0000000..18e8080
--- /dev/null
+++ b/backend/node_modules/side-channel-map/package.json
@@ -0,0 +1,80 @@
+{
+	"name": "side-channel-map",
+	"version": "1.0.1",
+	"description": "Store information about any JS value in a side channel, using a Map",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./package.json": "./package.json"
+	},
+	"types": "./index.d.ts",
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublishOnly": "safe-publish-latest",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prelint": "evalmd README.md && eclint check $(git ls-files | xargs find 2> /dev/null | grep -vE 'node_modules|\\.git')",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "tsc -p . && attw -P",
+		"pretest": "npm run lint",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@'>= 10.2' audit --production",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/side-channel-map.git"
+	},
+	"keywords": [],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"funding": {
+		"url": "https://github.com/sponsors/ljharb"
+	},
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/side-channel-map/issues"
+	},
+	"homepage": "https://github.com/ljharb/side-channel-map#readme",
+	"dependencies": {
+		"call-bound": "^1.0.2",
+		"es-errors": "^1.3.0",
+		"get-intrinsic": "^1.2.5",
+		"object-inspect": "^1.13.3"
+	},
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.17.1",
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.2",
+		"@types/get-intrinsic": "^1.2.3",
+		"@types/object-inspect": "^1.13.0",
+		"@types/tape": "^5.6.5",
+		"auto-changelog": "^2.5.0",
+		"eclint": "^2.8.1",
+		"encoding": "^0.1.13",
+		"eslint": "=8.8.0",
+		"evalmd": "^0.0.19",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/backend/node_modules/side-channel-map/test/index.js b/backend/node_modules/side-channel-map/test/index.js
new file mode 100644
index 0000000..1743323
--- /dev/null
+++ b/backend/node_modules/side-channel-map/test/index.js
@@ -0,0 +1,114 @@
+'use strict';
+
+var test = require('tape');
+
+var getSideChannelMap = require('../');
+
+test('getSideChannelMap', { skip: typeof Map !== 'function' }, function (t) {
+	var getSideChannel = getSideChannelMap || function () {
+		throw new EvalError('should never happen');
+	};
+
+	t.test('export', function (st) {
+		st.equal(typeof getSideChannel, 'function', 'is a function');
+
+		st.equal(getSideChannel.length, 0, 'takes no arguments');
+
+		var channel = getSideChannel();
+		st.ok(channel, 'is truthy');
+		st.equal(typeof channel, 'object', 'is an object');
+		st.end();
+	});
+
+	t.test('assert', function (st) {
+		var channel = getSideChannel();
+		st['throws'](
+			function () { channel.assert({}); },
+			TypeError,
+			'nonexistent value throws'
+		);
+
+		var o = {};
+		channel.set(o, 'data');
+		st.doesNotThrow(function () { channel.assert(o); }, 'existent value noops');
+
+		st.end();
+	});
+
+	t.test('has', function (st) {
+		var channel = getSideChannel();
+		/** @type {unknown[]} */ var o = [];
+
+		st.equal(channel.has(o), false, 'nonexistent value yields false');
+
+		channel.set(o, 'foo');
+		st.equal(channel.has(o), true, 'existent value yields true');
+
+		st.equal(channel.has('abc'), false, 'non object value non existent yields false');
+
+		channel.set('abc', 'foo');
+		st.equal(channel.has('abc'), true, 'non object value that exists yields true');
+
+		st.end();
+	});
+
+	t.test('get', function (st) {
+		var channel = getSideChannel();
+		var o = {};
+		st.equal(channel.get(o), undefined, 'nonexistent value yields undefined');
+
+		var data = {};
+		channel.set(o, data);
+		st.equal(channel.get(o), data, '"get" yields data set by "set"');
+
+		st.end();
+	});
+
+	t.test('set', function (st) {
+		var channel = getSideChannel();
+		var o = function () {};
+		st.equal(channel.get(o), undefined, 'value not set');
+
+		channel.set(o, 42);
+		st.equal(channel.get(o), 42, 'value was set');
+
+		channel.set(o, Infinity);
+		st.equal(channel.get(o), Infinity, 'value was set again');
+
+		var o2 = {};
+		channel.set(o2, 17);
+		st.equal(channel.get(o), Infinity, 'o is not modified');
+		st.equal(channel.get(o2), 17, 'o2 is set');
+
+		channel.set(o, 14);
+		st.equal(channel.get(o), 14, 'o is modified');
+		st.equal(channel.get(o2), 17, 'o2 is not modified');
+
+		st.end();
+	});
+
+	t.test('delete', function (st) {
+		var channel = getSideChannel();
+		var o = {};
+		st.equal(channel['delete']({}), false, 'nonexistent value yields false');
+
+		channel.set(o, 42);
+		st.equal(channel.has(o), true, 'value is set');
+
+		st.equal(channel['delete']({}), false, 'nonexistent value still yields false');
+
+		st.equal(channel['delete'](o), true, 'deleted value yields true');
+
+		st.equal(channel.has(o), false, 'value is no longer set');
+
+		st.end();
+	});
+
+	t.end();
+});
+
+test('getSideChannelMap, no Maps', { skip: typeof Map === 'function' }, function (t) {
+	t.equal(getSideChannelMap, false, 'is false');
+
+	t.end();
+});
diff --git a/backend/node_modules/side-channel-map/tsconfig.json b/backend/node_modules/side-channel-map/tsconfig.json
new file mode 100644
index 0000000..d9a6668
--- /dev/null
+++ b/backend/node_modules/side-channel-map/tsconfig.json
@@ -0,0 +1,9 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		"target": "es2021",
+	},
+	"exclude": [
+		"coverage",
+	],
+}
diff --git a/backend/node_modules/side-channel-weakmap/.editorconfig b/backend/node_modules/side-channel-weakmap/.editorconfig
new file mode 100644
index 0000000..72e0eba
--- /dev/null
+++ b/backend/node_modules/side-channel-weakmap/.editorconfig
@@ -0,0 +1,9 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+indent_style = tab
+indent_size = 2
+trim_trailing_whitespace = true
diff --git a/backend/node_modules/side-channel-weakmap/.eslintrc b/backend/node_modules/side-channel-weakmap/.eslintrc
new file mode 100644
index 0000000..9b13ad8
--- /dev/null
+++ b/backend/node_modules/side-channel-weakmap/.eslintrc
@@ -0,0 +1,12 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"id-length": 0,
+		"max-lines-per-function": 0,
+		"multiline-comment-style": 1,
+		"new-cap": [2, { "capIsNewExceptions": ["GetIntrinsic"] }],
+	},
+}
diff --git a/backend/node_modules/side-channel-weakmap/.github/FUNDING.yml b/backend/node_modules/side-channel-weakmap/.github/FUNDING.yml
new file mode 100644
index 0000000..2ae71cd
--- /dev/null
+++ b/backend/node_modules/side-channel-weakmap/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/side-channel-weakmap
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/side-channel-weakmap/.nycrc b/backend/node_modules/side-channel-weakmap/.nycrc
new file mode 100644
index 0000000..1826526
--- /dev/null
+++ b/backend/node_modules/side-channel-weakmap/.nycrc
@@ -0,0 +1,13 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"lines": 86,
+	"statements": 85.93,
+	"functions": 82.43,
+	"branches": 76.06,
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/side-channel-weakmap/CHANGELOG.md b/backend/node_modules/side-channel-weakmap/CHANGELOG.md
new file mode 100644
index 0000000..aba7ab0
--- /dev/null
+++ b/backend/node_modules/side-channel-weakmap/CHANGELOG.md
@@ -0,0 +1,28 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.0.2](https://github.com/ljharb/side-channel-weakmap/compare/v1.0.1...v1.0.2) - 2024-12-10
+
+### Commits
+
+- [types] fix generics ordering [`1b62e94`](https://github.com/ljharb/side-channel-weakmap/commit/1b62e94a2ad6ed30b640ba73c4a2535836c67289)
+
+## [v1.0.1](https://github.com/ljharb/side-channel-weakmap/compare/v1.0.0...v1.0.1) - 2024-12-10
+
+### Commits
+
+- [types] fix generics ordering [`08a4a5d`](https://github.com/ljharb/side-channel-weakmap/commit/08a4a5dbffedc3ebc79f1aaaf5a3dd6d2196dc1b)
+- [Deps] update `side-channel-map` [`b53fe44`](https://github.com/ljharb/side-channel-weakmap/commit/b53fe447dfdd3a9aebedfd015b384eac17fce916)
+
+## v1.0.0 - 2024-12-10
+
+### Commits
+
+- Initial implementation, tests, readme, types [`53c0fa4`](https://github.com/ljharb/side-channel-weakmap/commit/53c0fa4788435a006f58b9d7b43cb65989ecee49)
+- Initial commit [`a157947`](https://github.com/ljharb/side-channel-weakmap/commit/a157947f26fcaf2c4a941d3a044e76bf67343532)
+- npm init [`54dfc55`](https://github.com/ljharb/side-channel-weakmap/commit/54dfc55bafb16265910d5aad4e743c43aee5bbbb)
+- Only apps should have lockfiles [`0ddd6c7`](https://github.com/ljharb/side-channel-weakmap/commit/0ddd6c7b07fe8ee04d67b2e9f7255af7ce62c07d)
diff --git a/backend/node_modules/side-channel-weakmap/LICENSE b/backend/node_modules/side-channel-weakmap/LICENSE
new file mode 100644
index 0000000..3900dd7
--- /dev/null
+++ b/backend/node_modules/side-channel-weakmap/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/side-channel-weakmap/README.md b/backend/node_modules/side-channel-weakmap/README.md
new file mode 100644
index 0000000..856ee36
--- /dev/null
+++ b/backend/node_modules/side-channel-weakmap/README.md
@@ -0,0 +1,62 @@
+# side-channel-weakmap <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+Store information about any JS value in a side channel. Uses WeakMap if available.
+
+Warning: this implementation will leak memory until you `delete` the `key`.
+Use [`side-channel`](https://npmjs.com/side-channel) for the best available strategy.
+
+## Getting started
+
+```sh
+npm install --save side-channel-weakmap
+```
+
+## Usage/Examples
+
+```js
+const assert = require('assert');
+const getSideChannelList = require('side-channel-weakmap');
+
+const channel = getSideChannelList();
+
+const key = {};
+assert.equal(channel.has(key), false);
+assert.throws(() => channel.assert(key), TypeError);
+
+channel.set(key, 42);
+
+channel.assert(key); // does not throw
+assert.equal(channel.has(key), true);
+assert.equal(channel.get(key), 42);
+
+channel.delete(key);
+assert.equal(channel.has(key), false);
+assert.throws(() => channel.assert(key), TypeError);
+```
+
+## Tests
+
+Clone the repo, `npm install`, and run `npm test`
+
+[package-url]: https://npmjs.org/package/side-channel-weakmap
+[npm-version-svg]: https://versionbadg.es/ljharb/side-channel-weakmap.svg
+[deps-svg]: https://david-dm.org/ljharb/side-channel-weakmap.svg
+[deps-url]: https://david-dm.org/ljharb/side-channel-weakmap
+[dev-deps-svg]: https://david-dm.org/ljharb/side-channel-weakmap/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/side-channel-weakmap#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/side-channel-weakmap.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/side-channel-weakmap.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/side-channel-weakmap.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=side-channel-weakmap
+[codecov-image]: https://codecov.io/gh/ljharb/side-channel-weakmap/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/side-channel-weakmap/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/side-channel-weakmap
+[actions-url]: https://github.com/ljharb/side-channel-weakmap/actions
diff --git a/backend/node_modules/side-channel-weakmap/index.d.ts b/backend/node_modules/side-channel-weakmap/index.d.ts
new file mode 100644
index 0000000..ce1bc2a
--- /dev/null
+++ b/backend/node_modules/side-channel-weakmap/index.d.ts
@@ -0,0 +1,15 @@
+declare namespace getSideChannelWeakMap {
+	type Channel<K, V> = {
+		assert: (key: K) => void;
+		has: (key: K) => boolean;
+		get: (key: K) => V | undefined;
+		set: (key: K, value: V) => void;
+		delete: (key: K) => boolean;
+	}
+}
+
+declare function getSideChannelWeakMap<K, V>(): getSideChannelWeakMap.Channel<K, V>;
+
+declare const x: false | typeof getSideChannelWeakMap;
+
+export = x;
diff --git a/backend/node_modules/side-channel-weakmap/index.js b/backend/node_modules/side-channel-weakmap/index.js
new file mode 100644
index 0000000..e5b8183
--- /dev/null
+++ b/backend/node_modules/side-channel-weakmap/index.js
@@ -0,0 +1,84 @@
+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+var callBound = require('call-bound');
+var inspect = require('object-inspect');
+var getSideChannelMap = require('side-channel-map');
+
+var $TypeError = require('es-errors/type');
+var $WeakMap = GetIntrinsic('%WeakMap%', true);
+
+/** @type {<K extends object, V>(thisArg: WeakMap<K, V>, key: K) => V} */
+var $weakMapGet = callBound('WeakMap.prototype.get', true);
+/** @type {<K extends object, V>(thisArg: WeakMap<K, V>, key: K, value: V) => void} */
+var $weakMapSet = callBound('WeakMap.prototype.set', true);
+/** @type {<K extends object, V>(thisArg: WeakMap<K, V>, key: K) => boolean} */
+var $weakMapHas = callBound('WeakMap.prototype.has', true);
+/** @type {<K extends object, V>(thisArg: WeakMap<K, V>, key: K) => boolean} */
+var $weakMapDelete = callBound('WeakMap.prototype.delete', true);
+
+/** @type {import('.')} */
+module.exports = $WeakMap
+	? /** @type {Exclude<import('.'), false>} */ function getSideChannelWeakMap() {
+		/** @typedef {ReturnType<typeof getSideChannelWeakMap>} Channel */
+		/** @typedef {Parameters<Channel['get']>[0]} K */
+		/** @typedef {Parameters<Channel['set']>[1]} V */
+
+		/** @type {WeakMap<K & object, V> | undefined} */ var $wm;
+		/** @type {Channel | undefined} */ var $m;
+
+		/** @type {Channel} */
+		var channel = {
+			assert: function (key) {
+				if (!channel.has(key)) {
+					throw new $TypeError('Side channel does not contain ' + inspect(key));
+				}
+			},
+			'delete': function (key) {
+				if ($WeakMap && key && (typeof key === 'object' || typeof key === 'function')) {
+					if ($wm) {
+						return $weakMapDelete($wm, key);
+					}
+				} else if (getSideChannelMap) {
+					if ($m) {
+						return $m['delete'](key);
+					}
+				}
+				return false;
+			},
+			get: function (key) {
+				if ($WeakMap && key && (typeof key === 'object' || typeof key === 'function')) {
+					if ($wm) {
+						return $weakMapGet($wm, key);
+					}
+				}
+				return $m && $m.get(key);
+			},
+			has: function (key) {
+				if ($WeakMap && key && (typeof key === 'object' || typeof key === 'function')) {
+					if ($wm) {
+						return $weakMapHas($wm, key);
+					}
+				}
+				return !!$m && $m.has(key);
+			},
+			set: function (key, value) {
+				if ($WeakMap && key && (typeof key === 'object' || typeof key === 'function')) {
+					if (!$wm) {
+						$wm = new $WeakMap();
+					}
+					$weakMapSet($wm, key, value);
+				} else if (getSideChannelMap) {
+					if (!$m) {
+						$m = getSideChannelMap();
+					}
+					// eslint-disable-next-line no-extra-parens
+					/** @type {NonNullable<typeof $m>} */ ($m).set(key, value);
+				}
+			}
+		};
+
+		// @ts-expect-error TODO: figure out why this is erroring
+		return channel;
+	}
+	: getSideChannelMap;
diff --git a/backend/node_modules/side-channel-weakmap/package.json b/backend/node_modules/side-channel-weakmap/package.json
new file mode 100644
index 0000000..9ef6583
--- /dev/null
+++ b/backend/node_modules/side-channel-weakmap/package.json
@@ -0,0 +1,87 @@
+{
+	"name": "side-channel-weakmap",
+	"version": "1.0.2",
+	"description": "Store information about any JS value in a side channel. Uses WeakMap if available.",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./package.json": "./package.json"
+	},
+	"types": "./index.d.ts",
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublishOnly": "safe-publish-latest",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prelint": "eclint check $(git ls-files | xargs find 2> /dev/null | grep -vE 'node_modules|\\.git')",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "tsc -p . && attw -P",
+		"pretest": "npm run lint",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@'>=10.2' audit --production",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/side-channel-weakmap.git"
+	},
+	"keywords": [
+		"weakmap",
+		"map",
+		"side",
+		"channel",
+		"metadata"
+	],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"funding": {
+		"url": "https://github.com/sponsors/ljharb"
+	},
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/side-channel-weakmap/issues"
+	},
+	"homepage": "https://github.com/ljharb/side-channel-weakmap#readme",
+	"dependencies": {
+		"call-bound": "^1.0.2",
+		"es-errors": "^1.3.0",
+		"get-intrinsic": "^1.2.5",
+		"object-inspect": "^1.13.3",
+		"side-channel-map": "^1.0.1"
+	},
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.17.1",
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.2",
+		"@types/call-bind": "^1.0.5",
+		"@types/get-intrinsic": "^1.2.3",
+		"@types/object-inspect": "^1.13.0",
+		"@types/tape": "^5.6.5",
+		"auto-changelog": "^2.5.0",
+		"eclint": "^2.8.1",
+		"encoding": "^0.1.13",
+		"eslint": "=8.8.0",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/backend/node_modules/side-channel-weakmap/test/index.js b/backend/node_modules/side-channel-weakmap/test/index.js
new file mode 100644
index 0000000..a01248b
--- /dev/null
+++ b/backend/node_modules/side-channel-weakmap/test/index.js
@@ -0,0 +1,114 @@
+'use strict';
+
+var test = require('tape');
+
+var getSideChannelWeakMap = require('../');
+
+test('getSideChannelMap', { skip: typeof WeakMap !== 'function' && typeof Map !== 'function' }, function (t) {
+	var getSideChannel = getSideChannelWeakMap || function () {
+		throw new EvalError('should never happen');
+	};
+
+	t.test('export', function (st) {
+		st.equal(typeof getSideChannel, 'function', 'is a function');
+
+		st.equal(getSideChannel.length, 0, 'takes no arguments');
+
+		var channel = getSideChannel();
+		st.ok(channel, 'is truthy');
+		st.equal(typeof channel, 'object', 'is an object');
+		st.end();
+	});
+
+	t.test('assert', function (st) {
+		var channel = getSideChannel();
+		st['throws'](
+			function () { channel.assert({}); },
+			TypeError,
+			'nonexistent value throws'
+		);
+
+		var o = {};
+		channel.set(o, 'data');
+		st.doesNotThrow(function () { channel.assert(o); }, 'existent value noops');
+
+		st.end();
+	});
+
+	t.test('has', function (st) {
+		var channel = getSideChannel();
+		/** @type {unknown[]} */ var o = [];
+
+		st.equal(channel.has(o), false, 'nonexistent value yields false');
+
+		channel.set(o, 'foo');
+		st.equal(channel.has(o), true, 'existent value yields true');
+
+		st.equal(channel.has('abc'), false, 'non object value non existent yields false');
+
+		channel.set('abc', 'foo');
+		st.equal(channel.has('abc'), true, 'non object value that exists yields true');
+
+		st.end();
+	});
+
+	t.test('get', function (st) {
+		var channel = getSideChannel();
+		var o = {};
+		st.equal(channel.get(o), undefined, 'nonexistent value yields undefined');
+
+		var data = {};
+		channel.set(o, data);
+		st.equal(channel.get(o), data, '"get" yields data set by "set"');
+
+		st.end();
+	});
+
+	t.test('set', function (st) {
+		var channel = getSideChannel();
+		var o = function () {};
+		st.equal(channel.get(o), undefined, 'value not set');
+
+		channel.set(o, 42);
+		st.equal(channel.get(o), 42, 'value was set');
+
+		channel.set(o, Infinity);
+		st.equal(channel.get(o), Infinity, 'value was set again');
+
+		var o2 = {};
+		channel.set(o2, 17);
+		st.equal(channel.get(o), Infinity, 'o is not modified');
+		st.equal(channel.get(o2), 17, 'o2 is set');
+
+		channel.set(o, 14);
+		st.equal(channel.get(o), 14, 'o is modified');
+		st.equal(channel.get(o2), 17, 'o2 is not modified');
+
+		st.end();
+	});
+
+	t.test('delete', function (st) {
+		var channel = getSideChannel();
+		var o = {};
+		st.equal(channel['delete']({}), false, 'nonexistent value yields false');
+
+		channel.set(o, 42);
+		st.equal(channel.has(o), true, 'value is set');
+
+		st.equal(channel['delete']({}), false, 'nonexistent value still yields false');
+
+		st.equal(channel['delete'](o), true, 'deleted value yields true');
+
+		st.equal(channel.has(o), false, 'value is no longer set');
+
+		st.end();
+	});
+
+	t.end();
+});
+
+test('getSideChannelMap, no WeakMaps and/or Maps', { skip: typeof WeakMap === 'function' || typeof Map === 'function' }, function (t) {
+	t.equal(getSideChannelWeakMap, false, 'is false');
+
+	t.end();
+});
diff --git a/backend/node_modules/side-channel-weakmap/tsconfig.json b/backend/node_modules/side-channel-weakmap/tsconfig.json
new file mode 100644
index 0000000..d9a6668
--- /dev/null
+++ b/backend/node_modules/side-channel-weakmap/tsconfig.json
@@ -0,0 +1,9 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		"target": "es2021",
+	},
+	"exclude": [
+		"coverage",
+	],
+}
diff --git a/backend/node_modules/side-channel/.editorconfig b/backend/node_modules/side-channel/.editorconfig
new file mode 100644
index 0000000..72e0eba
--- /dev/null
+++ b/backend/node_modules/side-channel/.editorconfig
@@ -0,0 +1,9 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+indent_style = tab
+indent_size = 2
+trim_trailing_whitespace = true
diff --git a/backend/node_modules/side-channel/.eslintrc b/backend/node_modules/side-channel/.eslintrc
new file mode 100644
index 0000000..9b13ad8
--- /dev/null
+++ b/backend/node_modules/side-channel/.eslintrc
@@ -0,0 +1,12 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"id-length": 0,
+		"max-lines-per-function": 0,
+		"multiline-comment-style": 1,
+		"new-cap": [2, { "capIsNewExceptions": ["GetIntrinsic"] }],
+	},
+}
diff --git a/backend/node_modules/side-channel/.github/FUNDING.yml b/backend/node_modules/side-channel/.github/FUNDING.yml
new file mode 100644
index 0000000..2a94840
--- /dev/null
+++ b/backend/node_modules/side-channel/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/side-channel
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/backend/node_modules/side-channel/.nycrc b/backend/node_modules/side-channel/.nycrc
new file mode 100644
index 0000000..1826526
--- /dev/null
+++ b/backend/node_modules/side-channel/.nycrc
@@ -0,0 +1,13 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"lines": 86,
+	"statements": 85.93,
+	"functions": 82.43,
+	"branches": 76.06,
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
diff --git a/backend/node_modules/side-channel/CHANGELOG.md b/backend/node_modules/side-channel/CHANGELOG.md
new file mode 100644
index 0000000..58e378c
--- /dev/null
+++ b/backend/node_modules/side-channel/CHANGELOG.md
@@ -0,0 +1,110 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.1.0](https://github.com/ljharb/side-channel/compare/v1.0.6...v1.1.0) - 2024-12-11
+
+### Commits
+
+- [Refactor] extract implementations to `side-channel-weakmap`, `side-channel-map`, `side-channel-list` [`ada5955`](https://github.com/ljharb/side-channel/commit/ada595549a5c4c6c853756d598846b180941c6da)
+- [New] add `channel.delete` [`c01d2d3`](https://github.com/ljharb/side-channel/commit/c01d2d3fd51dbb1ce6da72ad7916e61bd6172aad)
+- [types] improve types [`0c54356`](https://github.com/ljharb/side-channel/commit/0c5435651417df41b8cc1a5f7cdce8bffae68cde)
+- [readme] add content [`be24868`](https://github.com/ljharb/side-channel/commit/be248682ac294b0e22c883092c45985aa91c490a)
+- [actions] split out node 10-20, and 20+ [`c4488e2`](https://github.com/ljharb/side-channel/commit/c4488e241ef3d49a19fe266ac830a2e644305911)
+- [types] use shared tsconfig [`0e0d57c`](https://github.com/ljharb/side-channel/commit/0e0d57c2ff17c7b45c6cbd43ebcf553edc9e3adc)
+- [Dev Deps] update `@ljharb/eslint-config`, `@ljharb/tsconfig`, `@types/get-intrinsic`, `@types/object-inspect`, `@types/tape`, `auto-changelog`, `tape` [`fb4f622`](https://github.com/ljharb/side-channel/commit/fb4f622e64a99a1e40b6e5cd7691674a9dc429e4)
+- [Deps] update `call-bind`, `get-intrinsic`, `object-inspect` [`b78336b`](https://github.com/ljharb/side-channel/commit/b78336b886172d1b457d414ac9e28de8c5fecc78)
+- [Tests] replace `aud` with `npm audit` [`ee3ab46`](https://github.com/ljharb/side-channel/commit/ee3ab4690d954311c35115651bcfd45edd205aa1)
+- [Dev Deps] add missing peer dep [`c03e21a`](https://github.com/ljharb/side-channel/commit/c03e21a7def3b67cdc15ae22316884fefcb2f6a8)
+
+## [v1.0.6](https://github.com/ljharb/side-channel/compare/v1.0.5...v1.0.6) - 2024-02-29
+
+### Commits
+
+- add types [`9beef66`](https://github.com/ljharb/side-channel/commit/9beef6643e6d717ea57bedabf86448123a7dd9e9)
+- [meta] simplify `exports` [`4334cf9`](https://github.com/ljharb/side-channel/commit/4334cf9df654151504c383b62a2f9ebdc8d9d5ac)
+- [Deps] update `call-bind` [`d6043c4`](https://github.com/ljharb/side-channel/commit/d6043c4d8f4d7be9037dd0f0419c7a2e0e39ec6a)
+- [Dev Deps] update `tape` [`6aca376`](https://github.com/ljharb/side-channel/commit/6aca3761868dc8cd5ff7fd9799bf6b95e09a6eb0)
+
+## [v1.0.5](https://github.com/ljharb/side-channel/compare/v1.0.4...v1.0.5) - 2024-02-06
+
+### Commits
+
+- [actions] reuse common workflows [`3d2e1ff`](https://github.com/ljharb/side-channel/commit/3d2e1ffd16dd6eaaf3e40ff57951f840d2d63c04)
+- [meta] use `npmignore` to autogenerate an npmignore file [`04296ea`](https://github.com/ljharb/side-channel/commit/04296ea17d1544b0a5d20fd5bfb31aa4f6513eb9)
+- [meta] add `.editorconfig`; add `eclint` [`130f0a6`](https://github.com/ljharb/side-channel/commit/130f0a6adbc04d385c7456a601d38344dce3d6a9)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog`, `safe-publish-latest`, `tape` [`d480c2f`](https://github.com/ljharb/side-channel/commit/d480c2fbe757489ae9b4275491ffbcc3ac4725e9)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog`, `tape` [`ecbe70e`](https://github.com/ljharb/side-channel/commit/ecbe70e53a418234081a77971fec1fdfae20c841)
+- [actions] update rebase action [`75240b9`](https://github.com/ljharb/side-channel/commit/75240b9963b816e8846400d2287cb68f88c7fba7)
+- [Dev Deps] update `@ljharb/eslint-config`, `aud`, `npmignore`, `tape` [`ae8d281`](https://github.com/ljharb/side-channel/commit/ae8d281572430099109870fd9430d2ca3f320b8d)
+- [Dev Deps] update `@ljharb/eslint-config`, `aud`, `tape` [`7125b88`](https://github.com/ljharb/side-channel/commit/7125b885fd0eacad4fee9b073b72d14065ece278)
+- [Deps] update `call-bind`, `get-intrinsic`, `object-inspect` [`82577c9`](https://github.com/ljharb/side-channel/commit/82577c9796304519139a570f82a317211b5f3b86)
+- [Deps] update `call-bind`, `get-intrinsic`, `object-inspect` [`550aadf`](https://github.com/ljharb/side-channel/commit/550aadf20475a6081fd70304cc54f77259a5c8a8)
+- [Tests] increase coverage [`5130877`](https://github.com/ljharb/side-channel/commit/5130877a7b27c862e64e6d1c12a178b28808859d)
+- [Deps] update `get-intrinsic`, `object-inspect` [`ba0194c`](https://github.com/ljharb/side-channel/commit/ba0194c505b1a8a0427be14cadd5b8a46d4d01b8)
+- [meta] add missing `engines.node` [`985fd24`](https://github.com/ljharb/side-channel/commit/985fd249663cb06617a693a94fe08cad12f5cb70)
+- [Refactor] use `es-errors`, so things that only need those do not need `get-intrinsic` [`40227a8`](https://github.com/ljharb/side-channel/commit/40227a87b01709ad2c0eebf87eb4223a800099b9)
+- [Deps] update `get-intrinsic` [`a989b40`](https://github.com/ljharb/side-channel/commit/a989b4024958737ae7be9fbffdeff2078f33a0fd)
+- [Deps] update `object-inspect` [`aec42d2`](https://github.com/ljharb/side-channel/commit/aec42d2ec541a31aaa02475692c87d489237d9a3)
+
+## [v1.0.4](https://github.com/ljharb/side-channel/compare/v1.0.3...v1.0.4) - 2020-12-29
+
+### Commits
+
+- [Tests] migrate tests to Github Actions [`10909cb`](https://github.com/ljharb/side-channel/commit/10909cbf8ce9c0bf96f604cf13d7ffd5a22c2d40)
+- [Refactor] Use a linked list rather than an array, and move accessed nodes to the beginning [`195613f`](https://github.com/ljharb/side-channel/commit/195613f28b5c1e6072ef0b61b5beebaf2b6a304e)
+- [meta] do not publish github action workflow files [`290ec29`](https://github.com/ljharb/side-channel/commit/290ec29cd21a60585145b4a7237ec55228c52c27)
+- [Tests] run `nyc` on all tests; use `tape` runner [`ea6d030`](https://github.com/ljharb/side-channel/commit/ea6d030ff3fe6be2eca39e859d644c51ecd88869)
+- [actions] add "Allow Edits" workflow [`d464d8f`](https://github.com/ljharb/side-channel/commit/d464d8fe52b5eddf1504a0ed97f0941a90f32c15)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog` [`02daca8`](https://github.com/ljharb/side-channel/commit/02daca87c6809821c97be468d1afa2f5ef447383)
+- [Refactor] use `call-bind` and `get-intrinsic` instead of `es-abstract` [`e09d481`](https://github.com/ljharb/side-channel/commit/e09d481528452ebafa5cdeae1af665c35aa2deee)
+- [Deps] update `object.assign` [`ee83aa8`](https://github.com/ljharb/side-channel/commit/ee83aa81df313b5e46319a63adb05cf0c179079a)
+- [actions] update rebase action to use checkout v2 [`7726b0b`](https://github.com/ljharb/side-channel/commit/7726b0b058b632fccea709f58960871defaaa9d7)
+
+## [v1.0.3](https://github.com/ljharb/side-channel/compare/v1.0.2...v1.0.3) - 2020-08-23
+
+### Commits
+
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog`, `tape` [`1f10561`](https://github.com/ljharb/side-channel/commit/1f105611ef3acf32dec8032ae5c0baa5e56bb868)
+- [Deps] update `es-abstract`, `object-inspect` [`bc20159`](https://github.com/ljharb/side-channel/commit/bc201597949a505e37cef9eaf24c7010831e6f03)
+- [Dev Deps] update `@ljharb/eslint-config`, `tape` [`b9b2b22`](https://github.com/ljharb/side-channel/commit/b9b2b225f9e0ea72a6ec2b89348f0bd690bc9ed1)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `tape` [`7055ab4`](https://github.com/ljharb/side-channel/commit/7055ab4de0860606efd2003674a74f1fe6ebc07e)
+- [Dev Deps] update `auto-changelog`; add `aud` [`d278c37`](https://github.com/ljharb/side-channel/commit/d278c37d08227be4f84aa769fcd919e73feeba40)
+- [actions] switch Automatic Rebase workflow to `pull_request_target` event [`3bcf982`](https://github.com/ljharb/side-channel/commit/3bcf982faa122745b39c33ce83d32fdf003741c6)
+- [Tests] only audit prod deps [`18d01c4`](https://github.com/ljharb/side-channel/commit/18d01c4015b82a3d75044c4d5ba7917b2eac01ec)
+- [Deps] update `es-abstract` [`6ab096d`](https://github.com/ljharb/side-channel/commit/6ab096d9de2b482cf5e0717e34e212f5b2b9bc9a)
+- [Dev Deps] update `tape` [`9dc174c`](https://github.com/ljharb/side-channel/commit/9dc174cc651dfd300b4b72da936a0a7eda5f9452)
+- [Deps] update `es-abstract` [`431d0f0`](https://github.com/ljharb/side-channel/commit/431d0f0ff11fbd2ae6f3115582a356d3a1cfce82)
+- [Deps] update `es-abstract` [`49869fd`](https://github.com/ljharb/side-channel/commit/49869fd323bf4453f0ba515c0fb265cf5ab7b932)
+- [meta] Add package.json to package's exports [`77d9cdc`](https://github.com/ljharb/side-channel/commit/77d9cdceb2a9e47700074f2ae0c0a202e7dac0d4)
+
+## [v1.0.2](https://github.com/ljharb/side-channel/compare/v1.0.1...v1.0.2) - 2019-12-20
+
+### Commits
+
+- [Dev Deps] update `@ljharb/eslint-config`, `tape` [`4a526df`](https://github.com/ljharb/side-channel/commit/4a526df44e4701566ed001ec78546193f818b082)
+- [Deps] update `es-abstract` [`d4f6e62`](https://github.com/ljharb/side-channel/commit/d4f6e629b6fb93a07415db7f30d3c90fd7f264fe)
+
+## [v1.0.1](https://github.com/ljharb/side-channel/compare/v1.0.0...v1.0.1) - 2019-12-01
+
+### Commits
+
+- [Fix] add missing "exports" [`d212907`](https://github.com/ljharb/side-channel/commit/d2129073abf0701a5343bf28aa2145617604dc2e)
+
+## v1.0.0 - 2019-12-01
+
+### Commits
+
+- Initial implementation [`dbebd3a`](https://github.com/ljharb/side-channel/commit/dbebd3a4b5ed64242f9a6810efe7c4214cd8cde4)
+- Initial tests [`73bdefe`](https://github.com/ljharb/side-channel/commit/73bdefe568c9076cf8c0b8719bc2141aec0e19b8)
+- Initial commit [`43c03e1`](https://github.com/ljharb/side-channel/commit/43c03e1c2849ec50a87b7a5cd76238a62b0b8770)
+- npm init [`5c090a7`](https://github.com/ljharb/side-channel/commit/5c090a765d66a5527d9889b89aeff78dee91348c)
+- [meta] add `auto-changelog` [`a5c4e56`](https://github.com/ljharb/side-channel/commit/a5c4e5675ec02d5eb4d84b4243aeea2a1d38fbec)
+- [actions] add automatic rebasing / merge commit blocking [`bab1683`](https://github.com/ljharb/side-channel/commit/bab1683d8f9754b086e94397699fdc645e0d7077)
+- [meta] add `funding` field; create FUNDING.yml [`63d7aea`](https://github.com/ljharb/side-channel/commit/63d7aeaf34f5650650ae97ca4b9fae685bd0937c)
+- [Tests] add `npm run lint` [`46a5a81`](https://github.com/ljharb/side-channel/commit/46a5a81705cd2664f83df232c01dbbf2ee952885)
+- Only apps should have lockfiles [`8b16b03`](https://github.com/ljharb/side-channel/commit/8b16b0305f00895d90c4e2e5773c854cfea0e448)
+- [meta] add `safe-publish-latest` [`2f098ef`](https://github.com/ljharb/side-channel/commit/2f098ef092a39399cfe548b19a1fc03c2fd2f490)
diff --git a/backend/node_modules/side-channel/LICENSE b/backend/node_modules/side-channel/LICENSE
new file mode 100644
index 0000000..3900dd7
--- /dev/null
+++ b/backend/node_modules/side-channel/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/side-channel/README.md b/backend/node_modules/side-channel/README.md
new file mode 100644
index 0000000..cc7e103
--- /dev/null
+++ b/backend/node_modules/side-channel/README.md
@@ -0,0 +1,61 @@
+# side-channel <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+Store information about any JS value in a side channel. Uses WeakMap if available.
+
+Warning: in an environment that lacks `WeakMap`, this implementation will leak memory until you `delete` the `key`.
+
+## Getting started
+
+```sh
+npm install --save side-channel
+```
+
+## Usage/Examples
+
+```js
+const assert = require('assert');
+const getSideChannel = require('side-channel');
+
+const channel = getSideChannel();
+
+const key = {};
+assert.equal(channel.has(key), false);
+assert.throws(() => channel.assert(key), TypeError);
+
+channel.set(key, 42);
+
+channel.assert(key); // does not throw
+assert.equal(channel.has(key), true);
+assert.equal(channel.get(key), 42);
+
+channel.delete(key);
+assert.equal(channel.has(key), false);
+assert.throws(() => channel.assert(key), TypeError);
+```
+
+## Tests
+
+Clone the repo, `npm install`, and run `npm test`
+
+[package-url]: https://npmjs.org/package/side-channel
+[npm-version-svg]: https://versionbadg.es/ljharb/side-channel.svg
+[deps-svg]: https://david-dm.org/ljharb/side-channel.svg
+[deps-url]: https://david-dm.org/ljharb/side-channel
+[dev-deps-svg]: https://david-dm.org/ljharb/side-channel/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/side-channel#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/side-channel.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/side-channel.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/side-channel.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=side-channel
+[codecov-image]: https://codecov.io/gh/ljharb/side-channel/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/side-channel/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/side-channel
+[actions-url]: https://github.com/ljharb/side-channel/actions
diff --git a/backend/node_modules/side-channel/index.d.ts b/backend/node_modules/side-channel/index.d.ts
new file mode 100644
index 0000000..18c6317
--- /dev/null
+++ b/backend/node_modules/side-channel/index.d.ts
@@ -0,0 +1,14 @@
+import getSideChannelList from 'side-channel-list';
+import getSideChannelMap from 'side-channel-map';
+import getSideChannelWeakMap from 'side-channel-weakmap';
+
+declare namespace getSideChannel {
+	type Channel<K, V> =
+		| getSideChannelList.Channel<K, V>
+		| ReturnType<Exclude<typeof getSideChannelMap<K, V>, false>>
+		| ReturnType<Exclude<typeof getSideChannelWeakMap<K, V>, false>>;
+}
+
+declare function getSideChannel<K, V>(): getSideChannel.Channel<K, V>;
+
+export = getSideChannel;
diff --git a/backend/node_modules/side-channel/index.js b/backend/node_modules/side-channel/index.js
new file mode 100644
index 0000000..a8a9b05
--- /dev/null
+++ b/backend/node_modules/side-channel/index.js
@@ -0,0 +1,43 @@
+'use strict';
+
+var $TypeError = require('es-errors/type');
+var inspect = require('object-inspect');
+var getSideChannelList = require('side-channel-list');
+var getSideChannelMap = require('side-channel-map');
+var getSideChannelWeakMap = require('side-channel-weakmap');
+
+var makeChannel = getSideChannelWeakMap || getSideChannelMap || getSideChannelList;
+
+/** @type {import('.')} */
+module.exports = function getSideChannel() {
+	/** @typedef {ReturnType<typeof getSideChannel>} Channel */
+
+	/** @type {Channel | undefined} */ var $channelData;
+
+	/** @type {Channel} */
+	var channel = {
+		assert: function (key) {
+			if (!channel.has(key)) {
+				throw new $TypeError('Side channel does not contain ' + inspect(key));
+			}
+		},
+		'delete': function (key) {
+			return !!$channelData && $channelData['delete'](key);
+		},
+		get: function (key) {
+			return $channelData && $channelData.get(key);
+		},
+		has: function (key) {
+			return !!$channelData && $channelData.has(key);
+		},
+		set: function (key, value) {
+			if (!$channelData) {
+				$channelData = makeChannel();
+			}
+
+			$channelData.set(key, value);
+		}
+	};
+	// @ts-expect-error TODO: figure out why this is erroring
+	return channel;
+};
diff --git a/backend/node_modules/side-channel/package.json b/backend/node_modules/side-channel/package.json
new file mode 100644
index 0000000..30fa42c
--- /dev/null
+++ b/backend/node_modules/side-channel/package.json
@@ -0,0 +1,85 @@
+{
+	"name": "side-channel",
+	"version": "1.1.0",
+	"description": "Store information about any JS value in a side channel. Uses WeakMap if available.",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./package.json": "./package.json"
+	},
+	"types": "./index.d.ts",
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublishOnly": "safe-publish-latest",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prelint": "eclint check $(git ls-files | xargs find 2> /dev/null | grep -vE 'node_modules|\\.git')",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "tsc -p . && attw -P",
+		"pretest": "npm run lint",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@'>=10.2' audit --production",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/side-channel.git"
+	},
+	"keywords": [
+		"weakmap",
+		"map",
+		"side",
+		"channel",
+		"metadata"
+	],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"funding": {
+		"url": "https://github.com/sponsors/ljharb"
+	},
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/side-channel/issues"
+	},
+	"homepage": "https://github.com/ljharb/side-channel#readme",
+	"dependencies": {
+		"es-errors": "^1.3.0",
+		"object-inspect": "^1.13.3",
+		"side-channel-list": "^1.0.0",
+		"side-channel-map": "^1.0.1",
+		"side-channel-weakmap": "^1.0.2"
+	},
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.17.1",
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.2",
+		"@types/object-inspect": "^1.13.0",
+		"@types/tape": "^5.6.5",
+		"auto-changelog": "^2.5.0",
+		"eclint": "^2.8.1",
+		"encoding": "^0.1.13",
+		"eslint": "=8.8.0",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/backend/node_modules/side-channel/test/index.js b/backend/node_modules/side-channel/test/index.js
new file mode 100644
index 0000000..bd1e7c2
--- /dev/null
+++ b/backend/node_modules/side-channel/test/index.js
@@ -0,0 +1,104 @@
+'use strict';
+
+var test = require('tape');
+
+var getSideChannel = require('../');
+
+test('getSideChannel', function (t) {
+	t.test('export', function (st) {
+		st.equal(typeof getSideChannel, 'function', 'is a function');
+
+		st.equal(getSideChannel.length, 0, 'takes no arguments');
+
+		var channel = getSideChannel();
+		st.ok(channel, 'is truthy');
+		st.equal(typeof channel, 'object', 'is an object');
+		st.end();
+	});
+
+	t.test('assert', function (st) {
+		var channel = getSideChannel();
+		st['throws'](
+			function () { channel.assert({}); },
+			TypeError,
+			'nonexistent value throws'
+		);
+
+		var o = {};
+		channel.set(o, 'data');
+		st.doesNotThrow(function () { channel.assert(o); }, 'existent value noops');
+
+		st.end();
+	});
+
+	t.test('has', function (st) {
+		var channel = getSideChannel();
+		/** @type {unknown[]} */ var o = [];
+
+		st.equal(channel.has(o), false, 'nonexistent value yields false');
+
+		channel.set(o, 'foo');
+		st.equal(channel.has(o), true, 'existent value yields true');
+
+		st.equal(channel.has('abc'), false, 'non object value non existent yields false');
+
+		channel.set('abc', 'foo');
+		st.equal(channel.has('abc'), true, 'non object value that exists yields true');
+
+		st.end();
+	});
+
+	t.test('get', function (st) {
+		var channel = getSideChannel();
+		var o = {};
+		st.equal(channel.get(o), undefined, 'nonexistent value yields undefined');
+
+		var data = {};
+		channel.set(o, data);
+		st.equal(channel.get(o), data, '"get" yields data set by "set"');
+
+		st.end();
+	});
+
+	t.test('set', function (st) {
+		var channel = getSideChannel();
+		var o = function () {};
+		st.equal(channel.get(o), undefined, 'value not set');
+
+		channel.set(o, 42);
+		st.equal(channel.get(o), 42, 'value was set');
+
+		channel.set(o, Infinity);
+		st.equal(channel.get(o), Infinity, 'value was set again');
+
+		var o2 = {};
+		channel.set(o2, 17);
+		st.equal(channel.get(o), Infinity, 'o is not modified');
+		st.equal(channel.get(o2), 17, 'o2 is set');
+
+		channel.set(o, 14);
+		st.equal(channel.get(o), 14, 'o is modified');
+		st.equal(channel.get(o2), 17, 'o2 is not modified');
+
+		st.end();
+	});
+
+	t.test('delete', function (st) {
+		var channel = getSideChannel();
+		var o = {};
+		st.equal(channel['delete']({}), false, 'nonexistent value yields false');
+
+		channel.set(o, 42);
+		st.equal(channel.has(o), true, 'value is set');
+
+		st.equal(channel['delete']({}), false, 'nonexistent value still yields false');
+
+		st.equal(channel['delete'](o), true, 'deleted value yields true');
+
+		st.equal(channel.has(o), false, 'value is no longer set');
+
+		st.end();
+	});
+
+	t.end();
+});
diff --git a/backend/node_modules/side-channel/tsconfig.json b/backend/node_modules/side-channel/tsconfig.json
new file mode 100644
index 0000000..d9a6668
--- /dev/null
+++ b/backend/node_modules/side-channel/tsconfig.json
@@ -0,0 +1,9 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		"target": "es2021",
+	},
+	"exclude": [
+		"coverage",
+	],
+}
diff --git a/backend/node_modules/sift/MIT-LICENSE.txt b/backend/node_modules/sift/MIT-LICENSE.txt
new file mode 100644
index 0000000..c080d2e
--- /dev/null
+++ b/backend/node_modules/sift/MIT-LICENSE.txt
@@ -0,0 +1,20 @@
+Copyright (c) 2015 Craig Condon
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/sift/README.md b/backend/node_modules/sift/README.md
new file mode 100644
index 0000000..0501d1a
--- /dev/null
+++ b/backend/node_modules/sift/README.md
@@ -0,0 +1,465 @@
+**Installation**: `npm install sift`, or `yarn add sift`
+
+## Sift is a tiny library for using MongoDB queries in Javascript
+
+[![Build Status](https://secure.travis-ci.org/crcn/sift.js.png)](https://secure.travis-ci.org/crcn/sift.js)
+
+<!-- [![Coverage Status](https://coveralls.io/repos/crcn/sift.js/badge.svg)](https://coveralls.io/r/crcn/sift.js)  -->
+<!-- [![Join the chat at https://gitter.im/crcn/sift.js](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/crcn/sift.js?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) -->
+
+**For extended documentation, checkout http://docs.mongodb.org/manual/reference/operator/query/**
+
+## Features:
+
+- Supported operators: [\$in](#in), [\$nin](#nin), [\$exists](#exists), [\$gte](#gte), [\$gt](#gt), [\$lte](#lte), [\$lt](#lt), [\$eq](#eq), [\$ne](#ne), [\$mod](#mod), [\$all](#all), [\$and](#and), [\$or](#or), [\$nor](#nor), [\$not](#not), [\$size](#size), [\$type](#type), [\$regex](#regex), [\$where](#where), [\$elemMatch](#elemmatch)
+- Regexp searches
+- Supports node.js, and web
+- Custom Operations
+- Tree-shaking (omitting functionality from web app bundles)
+
+## Examples
+
+```javascript
+import sift from "sift";
+
+// intersecting arrays
+const result1 = ["hello", "sifted", "array!"].filter(
+  sift({ $in: ["hello", "world"] }),
+); // ['hello']
+
+// regexp filter
+const result2 = ["craig", "john", "jake"].filter(sift(/^j/)); //['john','jake']
+
+// function filter
+const testFilter = sift({
+  //you can also filter against functions
+  name: function (value) {
+    return value.length == 5;
+  },
+});
+
+const result3 = [
+  {
+    name: "craig",
+  },
+  {
+    name: "john",
+  },
+  {
+    name: "jake",
+  },
+].filter(testFilter); // filtered: [{ name: 'craig' }]
+
+// you can test *single values* against your custom sifter
+testFilter({ name: "sarah" }); //true
+testFilter({ name: "tim" }); //false
+```
+
+## API
+
+### sift(query: MongoQuery, options?: Options): Function
+
+Creates a filter with all the built-in MongoDB query operations.
+
+- `query` - the filter to use against the target array
+- `options`
+  - `operations` - [custom operations](#custom-operations)
+  - `compare` - compares difference between two values
+
+Example:
+
+```javascript
+import sift from "sift";
+
+const test = sift({ $gt: 5 });
+
+console.log(test(6)); // true
+console.log(test(4)); // false
+
+[3, 4, 5, 6, 7].filter(test); // [6, 7]
+```
+
+### createQueryTester(query: Query, options?: Options): Function
+
+Creates a filter function **without** built-in MongoDB query operations. This is useful
+if you're looking to omit certain operations from application bundles. See [Omitting built-in operations](#omitting-built-in-operations) for more info.
+
+```javascript
+import { createQueryTester, $eq, $in } from "sift";
+const filter = createQueryTester({ $eq: 5 }, { operations: { $eq, $in } });
+```
+
+### createEqualsOperation(params: any, ownerQuery: Query, options: Options): Operation
+
+Used for [custom operations](#custom-operations).
+
+```javascript
+import { createQueryTester, createEqualsOperation, $eq, $in } from "sift";
+const filter = createQueryTester(
+  { $mod: 5 },
+  {
+    operations: {
+      $something(mod, ownerQuery, options) {
+        return createEqualsOperation(
+          (value) => value % mod === 0,
+          ownerQuery,
+          options,
+        );
+      },
+    },
+  },
+);
+filter(10); // true
+filter(11); // false
+```
+
+## Supported Operators
+
+See MongoDB's [advanced queries](http://www.mongodb.org/display/DOCS/Advanced+Queries) for more info.
+
+### \$in
+
+array value must be _\$in_ the given query:
+
+Intersecting two arrays:
+
+```javascript
+// filtered: ['Brazil']
+["Brazil", "Haiti", "Peru", "Chile"].filter(
+  sift({ $in: ["Costa Rica", "Brazil"] }),
+);
+```
+
+Here's another example. This acts more like the \$or operator:
+
+```javascript
+[{ name: "Craig", location: "Brazil" }].filter(
+  sift({ location: { $in: ["Costa Rica", "Brazil"] } }),
+);
+```
+
+### \$nin
+
+Opposite of \$in:
+
+```javascript
+// filtered: ['Haiti','Peru','Chile']
+["Brazil", "Haiti", "Peru", "Chile"].filter(
+  sift({ $nin: ["Costa Rica", "Brazil"] }),
+);
+```
+
+### \$exists
+
+Checks if whether a value exists:
+
+```javascript
+// filtered: ['Craig','Tim']
+sift({ $exists: true })(["Craig", null, "Tim"]);
+```
+
+You can also filter out values that don't exist
+
+```javascript
+// filtered: [{ name: "Tim" }]
+[{ name: "Craig", city: "Minneapolis" }, { name: "Tim" }].filter(
+  sift({ city: { $exists: false } }),
+);
+```
+
+### \$gte
+
+Checks if a number is >= value:
+
+```javascript
+// filtered: [2, 3]
+[0, 1, 2, 3].filter(sift({ $gte: 2 }));
+```
+
+### \$gt
+
+Checks if a number is > value:
+
+```javascript
+// filtered: [3]
+[0, 1, 2, 3].filter(sift({ $gt: 2 }));
+```
+
+### \$lte
+
+Checks if a number is <= value.
+
+```javascript
+// filtered: [0, 1, 2]
+[0, 1, 2, 3].filter(sift({ $lte: 2 }));
+```
+
+### \$lt
+
+Checks if number is < value.
+
+```javascript
+// filtered: [0, 1]
+[0, 1, 2, 3].filter(sift({ $lt: 2 }));
+```
+
+### \$eq
+
+Checks if `query === value`. Note that **\$eq can be omitted**. For **\$eq**, and **\$ne**
+
+```javascript
+// filtered: [{ state: 'MN' }]
+[{ state: "MN" }, { state: "CA" }, { state: "WI" }].filter(
+  sift({ state: { $eq: "MN" } }),
+);
+```
+
+Or:
+
+```javascript
+// filtered: [{ state: 'MN' }]
+[{ state: "MN" }, { state: "CA" }, { state: "WI" }].filter(
+  sift({ state: "MN" }),
+);
+```
+
+### \$ne
+
+Checks if `query !== value`.
+
+```javascript
+// filtered: [{ state: 'CA' }, { state: 'WI'}]
+[{ state: "MN" }, { state: "CA" }, { state: "WI" }].filter(
+  sift({ state: { $ne: "MN" } }),
+);
+```
+
+### \$mod
+
+Modulus:
+
+```javascript
+// filtered: [300, 600]
+[100, 200, 300, 400, 500, 600].filter(sift({ $mod: [3, 0] }));
+```
+
+### \$all
+
+values must match **everything** in array:
+
+```javascript
+// filtered: [ { tags: ['books','programming','travel' ]} ]
+[
+  { tags: ["books", "programming", "travel"] },
+  { tags: ["travel", "cooking"] },
+].filter(sift({ tags: { $all: ["books", "programming"] } }));
+```
+
+### \$and
+
+ability to use an array of expressions. All expressions must test true.
+
+```javascript
+// filtered: [ { name: 'Craig', state: 'MN' }]
+
+[
+  { name: "Craig", state: "MN" },
+  { name: "Tim", state: "MN" },
+  { name: "Joe", state: "CA" },
+].filter(sift({ $and: [{ name: "Craig" }, { state: "MN" }] }));
+```
+
+### \$or
+
+OR array of expressions.
+
+```javascript
+// filtered: [ { name: 'Craig', state: 'MN' }, { name: 'Tim', state: 'MN' }]
+[
+  { name: "Craig", state: "MN" },
+  { name: "Tim", state: "MN" },
+  { name: "Joe", state: "CA" },
+].filter(sift({ $or: [{ name: "Craig" }, { state: "MN" }] }));
+```
+
+### \$nor
+
+opposite of or:
+
+```javascript
+// filtered: [{ name: 'Joe', state: 'CA' }]
+[
+  { name: "Craig", state: "MN" },
+  { name: "Tim", state: "MN" },
+  { name: "Joe", state: "CA" },
+].filter(sift({ $nor: [{ name: "Craig" }, { state: "MN" }] }));
+```
+
+### \$size
+
+Matches an array - must match given size:
+
+```javascript
+// filtered: ['food','cooking']
+[{ tags: ["food", "cooking"] }, { tags: ["traveling"] }].filter(
+  sift({ tags: { $size: 2 } }),
+);
+```
+
+### \$type
+
+Matches a values based on the type
+
+```javascript
+[new Date(), 4342, "hello world"].filter(sift({ $type: Date })); // returns single date
+[new Date(), 4342, "hello world"].filter(sift({ $type: String })); // returns ['hello world']
+```
+
+### \$regex
+
+Matches values based on the given regular expression
+
+```javascript
+["frank", "fred", "sam", "frost"].filter(
+  sift({ $regex: /^f/i, $nin: ["frank"] }),
+); // ["fred", "frost"]
+["frank", "fred", "sam", "frost"].filter(
+  sift({ $regex: "^f", $options: "i", $nin: ["frank"] }),
+); // ["fred", "frost"]
+```
+
+### \$where
+
+Matches based on some javascript comparison
+
+```javascript
+[{ name: "frank" }, { name: "joe" }].filter(
+  sift({ $where: "this.name === 'frank'" }),
+); // ["frank"]
+[{ name: "frank" }, { name: "joe" }].filter(
+  sift({
+    $where: function () {
+      return this.name === "frank";
+    },
+  }),
+); // ["frank"]
+```
+
+### \$elemMatch
+
+Matches elements of array
+
+```javascript
+var bills = [
+  {
+    month: "july",
+    casts: [
+      {
+        id: 1,
+        value: 200,
+      },
+      {
+        id: 2,
+        value: 1000,
+      },
+    ],
+  },
+  {
+    month: "august",
+    casts: [
+      {
+        id: 3,
+        value: 1000,
+      },
+      {
+        id: 4,
+        value: 4000,
+      },
+    ],
+  },
+];
+
+var result = bills.filter(
+  sift({
+    casts: {
+      $elemMatch: {
+        value: { $gt: 1000 },
+      },
+    },
+  }),
+); // {month:'august', casts:[{id:3, value: 1000},{id: 4, value: 4000}]}
+```
+
+### \$not
+
+Not expression:
+
+```javascript
+["craig", "tim", "jake"].filter(sift({ $not: { $in: ["craig", "tim"] } })); // ['jake']
+["craig", "tim", "jake"].filter(sift({ $not: { $size: 5 } })); // ['tim','jake']
+```
+
+### Date comparison
+
+Mongodb allows you to do date comparisons like so:
+
+```javascript
+db.collection.find({ createdAt: { $gte: "2018-03-22T06:00:00Z" } });
+```
+
+In Sift, you'll need to specify a Date object:
+
+```javascript
+collection.find(
+  sift({ createdAt: { $gte: new Date("2018-03-22T06:00:00Z") } }),
+);
+```
+
+## Custom behavior
+
+Sift works like MongoDB out of the box, but you're also able to modify the behavior to suite your needs.
+
+#### Custom operations
+
+You can register your own custom operations. Here's an example:
+
+```javascript
+import sift, { createEqualsOperation } from "sift";
+
+var filter = sift(
+  {
+    $customMod: 2,
+  },
+  {
+    operations: {
+      $customMod(params, ownerQuery, options) {
+        return createEqualsOperation(
+          (value) => value % params !== 0,
+          ownerQuery,
+          options,
+        );
+      },
+    },
+  },
+);
+
+[1, 2, 3, 4, 5].filter(filter); // [1, 3, 5]
+```
+
+#### Omitting built-in operations
+
+You can create a filter function that omits the built-in operations like so:
+
+```javascript
+import { createQueryTester, $in, $all, $nin, $lt } from "sift";
+const test = createQueryTester(
+  {
+    $eq: 10,
+  },
+  { operations: { $in, $all, $nin, $lt } },
+);
+
+[1, 2, 3, 4, 10].filter(test);
+```
+
+For bundlers like `Webpack` and `Rollup`, operations that aren't used are omitted from application bundles via tree-shaking.
diff --git a/backend/node_modules/sift/es/index.js b/backend/node_modules/sift/es/index.js
new file mode 100644
index 0000000..8e0e9f0
--- /dev/null
+++ b/backend/node_modules/sift/es/index.js
@@ -0,0 +1,632 @@
+const typeChecker = (type) => {
+    const typeString = "[object " + type + "]";
+    return function (value) {
+        return getClassName(value) === typeString;
+    };
+};
+const getClassName = (value) => Object.prototype.toString.call(value);
+const comparable = (value) => {
+    if (value instanceof Date) {
+        return value.getTime();
+    }
+    else if (isArray(value)) {
+        return value.map(comparable);
+    }
+    else if (value && typeof value.toJSON === "function") {
+        return value.toJSON();
+    }
+    return value;
+};
+const coercePotentiallyNull = (value) => value == null ? null : value;
+const isArray = typeChecker("Array");
+const isObject = typeChecker("Object");
+const isFunction = typeChecker("Function");
+const isProperty = (item, key) => {
+    return item.hasOwnProperty(key) && !isFunction(item[key]);
+};
+const isVanillaObject = (value) => {
+    return (value &&
+        (value.constructor === Object ||
+            value.constructor === Array ||
+            value.constructor.toString() === "function Object() { [native code] }" ||
+            value.constructor.toString() === "function Array() { [native code] }") &&
+        !value.toJSON);
+};
+const equals = (a, b) => {
+    if (a == null && a == b) {
+        return true;
+    }
+    if (a === b) {
+        return true;
+    }
+    if (Object.prototype.toString.call(a) !== Object.prototype.toString.call(b)) {
+        return false;
+    }
+    if (isArray(a)) {
+        if (a.length !== b.length) {
+            return false;
+        }
+        for (let i = 0, { length } = a; i < length; i++) {
+            if (!equals(a[i], b[i]))
+                return false;
+        }
+        return true;
+    }
+    else if (isObject(a)) {
+        if (Object.keys(a).length !== Object.keys(b).length) {
+            return false;
+        }
+        for (const key in a) {
+            if (!equals(a[key], b[key]))
+                return false;
+        }
+        return true;
+    }
+    return false;
+};
+
+/**
+ * Walks through each value given the context - used for nested operations. E.g:
+ * { "person.address": { $eq: "blarg" }}
+ */
+const walkKeyPathValues = (item, keyPath, next, depth, key, owner) => {
+    const currentKey = keyPath[depth];
+    // if array, then try matching. Might fall through for cases like:
+    // { $eq: [1, 2, 3] }, [ 1, 2, 3 ].
+    if (isArray(item) &&
+        isNaN(Number(currentKey)) &&
+        !isProperty(item, currentKey)) {
+        for (let i = 0, { length } = item; i < length; i++) {
+            // if FALSE is returned, then terminate walker. For operations, this simply
+            // means that the search critera was met.
+            if (!walkKeyPathValues(item[i], keyPath, next, depth, i, item)) {
+                return false;
+            }
+        }
+    }
+    if (depth === keyPath.length || item == null) {
+        return next(item, key, owner, depth === 0, depth === keyPath.length);
+    }
+    return walkKeyPathValues(item[currentKey], keyPath, next, depth + 1, currentKey, item);
+};
+class BaseOperation {
+    constructor(params, owneryQuery, options, name) {
+        this.params = params;
+        this.owneryQuery = owneryQuery;
+        this.options = options;
+        this.name = name;
+        this.init();
+    }
+    init() { }
+    reset() {
+        this.done = false;
+        this.keep = false;
+    }
+}
+class GroupOperation extends BaseOperation {
+    constructor(params, owneryQuery, options, children) {
+        super(params, owneryQuery, options);
+        this.children = children;
+    }
+    /**
+     */
+    reset() {
+        this.keep = false;
+        this.done = false;
+        for (let i = 0, { length } = this.children; i < length; i++) {
+            this.children[i].reset();
+        }
+    }
+    /**
+     */
+    childrenNext(item, key, owner, root, leaf) {
+        let done = true;
+        let keep = true;
+        for (let i = 0, { length } = this.children; i < length; i++) {
+            const childOperation = this.children[i];
+            if (!childOperation.done) {
+                childOperation.next(item, key, owner, root, leaf);
+            }
+            if (!childOperation.keep) {
+                keep = false;
+            }
+            if (childOperation.done) {
+                if (!childOperation.keep) {
+                    break;
+                }
+            }
+            else {
+                done = false;
+            }
+        }
+        this.done = done;
+        this.keep = keep;
+    }
+}
+class NamedGroupOperation extends GroupOperation {
+    constructor(params, owneryQuery, options, children, name) {
+        super(params, owneryQuery, options, children);
+        this.name = name;
+    }
+}
+class QueryOperation extends GroupOperation {
+    constructor() {
+        super(...arguments);
+        this.propop = true;
+    }
+    /**
+     */
+    next(item, key, parent, root) {
+        this.childrenNext(item, key, parent, root);
+    }
+}
+class NestedOperation extends GroupOperation {
+    constructor(keyPath, params, owneryQuery, options, children) {
+        super(params, owneryQuery, options, children);
+        this.keyPath = keyPath;
+        this.propop = true;
+        /**
+         */
+        this._nextNestedValue = (value, key, owner, root, leaf) => {
+            this.childrenNext(value, key, owner, root, leaf);
+            return !this.done;
+        };
+    }
+    /**
+     */
+    next(item, key, parent) {
+        walkKeyPathValues(item, this.keyPath, this._nextNestedValue, 0, key, parent);
+    }
+}
+const createTester = (a, compare) => {
+    if (a instanceof Function) {
+        return a;
+    }
+    if (a instanceof RegExp) {
+        return (b) => {
+            const result = typeof b === "string" && a.test(b);
+            a.lastIndex = 0;
+            return result;
+        };
+    }
+    const comparableA = comparable(a);
+    return (b) => compare(comparableA, comparable(b));
+};
+class EqualsOperation extends BaseOperation {
+    constructor() {
+        super(...arguments);
+        this.propop = true;
+    }
+    init() {
+        this._test = createTester(this.params, this.options.compare);
+    }
+    next(item, key, parent) {
+        if (!Array.isArray(parent) || parent.hasOwnProperty(key)) {
+            if (this._test(item, key, parent)) {
+                this.done = true;
+                this.keep = true;
+            }
+        }
+    }
+}
+const createEqualsOperation = (params, owneryQuery, options) => new EqualsOperation(params, owneryQuery, options);
+const numericalOperationCreator = (createNumericalOperation) => (params, owneryQuery, options, name) => {
+    return createNumericalOperation(params, owneryQuery, options, name);
+};
+const numericalOperation = (createTester) => numericalOperationCreator((params, owneryQuery, options, name) => {
+    const typeofParams = typeof comparable(params);
+    const test = createTester(params);
+    return new EqualsOperation((b) => {
+        const actualValue = coercePotentiallyNull(b);
+        return (typeof comparable(actualValue) === typeofParams && test(actualValue));
+    }, owneryQuery, options, name);
+});
+const createNamedOperation = (name, params, parentQuery, options) => {
+    const operationCreator = options.operations[name];
+    if (!operationCreator) {
+        throwUnsupportedOperation(name);
+    }
+    return operationCreator(params, parentQuery, options, name);
+};
+const throwUnsupportedOperation = (name) => {
+    throw new Error(`Unsupported operation: ${name}`);
+};
+const containsOperation = (query, options) => {
+    for (const key in query) {
+        if (options.operations.hasOwnProperty(key) || key.charAt(0) === "$")
+            return true;
+    }
+    return false;
+};
+const createNestedOperation = (keyPath, nestedQuery, parentKey, owneryQuery, options) => {
+    if (containsOperation(nestedQuery, options)) {
+        const [selfOperations, nestedOperations] = createQueryOperations(nestedQuery, parentKey, options);
+        if (nestedOperations.length) {
+            throw new Error(`Property queries must contain only operations, or exact objects.`);
+        }
+        return new NestedOperation(keyPath, nestedQuery, owneryQuery, options, selfOperations);
+    }
+    return new NestedOperation(keyPath, nestedQuery, owneryQuery, options, [
+        new EqualsOperation(nestedQuery, owneryQuery, options),
+    ]);
+};
+const createQueryOperation = (query, owneryQuery = null, { compare, operations } = {}) => {
+    const options = {
+        compare: compare || equals,
+        operations: Object.assign({}, operations || {}),
+    };
+    const [selfOperations, nestedOperations] = createQueryOperations(query, null, options);
+    const ops = [];
+    if (selfOperations.length) {
+        ops.push(new NestedOperation([], query, owneryQuery, options, selfOperations));
+    }
+    ops.push(...nestedOperations);
+    if (ops.length === 1) {
+        return ops[0];
+    }
+    return new QueryOperation(query, owneryQuery, options, ops);
+};
+const createQueryOperations = (query, parentKey, options) => {
+    const selfOperations = [];
+    const nestedOperations = [];
+    if (!isVanillaObject(query)) {
+        selfOperations.push(new EqualsOperation(query, query, options));
+        return [selfOperations, nestedOperations];
+    }
+    for (const key in query) {
+        if (options.operations.hasOwnProperty(key)) {
+            const op = createNamedOperation(key, query[key], query, options);
+            if (op) {
+                if (!op.propop && parentKey && !options.operations[parentKey]) {
+                    throw new Error(`Malformed query. ${key} cannot be matched against property.`);
+                }
+            }
+            // probably just a flag for another operation (like $options)
+            if (op != null) {
+                selfOperations.push(op);
+            }
+        }
+        else if (key.charAt(0) === "$") {
+            throwUnsupportedOperation(key);
+        }
+        else {
+            nestedOperations.push(createNestedOperation(key.split("."), query[key], key, query, options));
+        }
+    }
+    return [selfOperations, nestedOperations];
+};
+const createOperationTester = (operation) => (item, key, owner) => {
+    operation.reset();
+    operation.next(item, key, owner);
+    return operation.keep;
+};
+const createQueryTester = (query, options = {}) => {
+    return createOperationTester(createQueryOperation(query, null, options));
+};
+
+class $Ne extends BaseOperation {
+    constructor() {
+        super(...arguments);
+        this.propop = true;
+    }
+    init() {
+        this._test = createTester(this.params, this.options.compare);
+    }
+    reset() {
+        super.reset();
+        this.keep = true;
+    }
+    next(item) {
+        if (this._test(item)) {
+            this.done = true;
+            this.keep = false;
+        }
+    }
+}
+// https://docs.mongodb.com/manual/reference/operator/query/elemMatch/
+class $ElemMatch extends BaseOperation {
+    constructor() {
+        super(...arguments);
+        this.propop = true;
+    }
+    init() {
+        if (!this.params || typeof this.params !== "object") {
+            throw new Error(`Malformed query. $elemMatch must by an object.`);
+        }
+        this._queryOperation = createQueryOperation(this.params, this.owneryQuery, this.options);
+    }
+    reset() {
+        super.reset();
+        this._queryOperation.reset();
+    }
+    next(item) {
+        if (isArray(item)) {
+            for (let i = 0, { length } = item; i < length; i++) {
+                // reset query operation since item being tested needs to pass _all_ query
+                // operations for it to be a success
+                this._queryOperation.reset();
+                const child = item[i];
+                this._queryOperation.next(child, i, item, false);
+                this.keep = this.keep || this._queryOperation.keep;
+            }
+            this.done = true;
+        }
+        else {
+            this.done = false;
+            this.keep = false;
+        }
+    }
+}
+class $Not extends BaseOperation {
+    constructor() {
+        super(...arguments);
+        this.propop = true;
+    }
+    init() {
+        this._queryOperation = createQueryOperation(this.params, this.owneryQuery, this.options);
+    }
+    reset() {
+        super.reset();
+        this._queryOperation.reset();
+    }
+    next(item, key, owner, root) {
+        this._queryOperation.next(item, key, owner, root);
+        this.done = this._queryOperation.done;
+        this.keep = !this._queryOperation.keep;
+    }
+}
+class $Size extends BaseOperation {
+    constructor() {
+        super(...arguments);
+        this.propop = true;
+    }
+    init() { }
+    next(item) {
+        if (isArray(item) && item.length === this.params) {
+            this.done = true;
+            this.keep = true;
+        }
+        // if (parent && parent.length === this.params) {
+        //   this.done = true;
+        //   this.keep = true;
+        // }
+    }
+}
+const assertGroupNotEmpty = (values) => {
+    if (values.length === 0) {
+        throw new Error(`$and/$or/$nor must be a nonempty array`);
+    }
+};
+class $Or extends BaseOperation {
+    constructor() {
+        super(...arguments);
+        this.propop = false;
+    }
+    init() {
+        assertGroupNotEmpty(this.params);
+        this._ops = this.params.map((op) => createQueryOperation(op, null, this.options));
+    }
+    reset() {
+        this.done = false;
+        this.keep = false;
+        for (let i = 0, { length } = this._ops; i < length; i++) {
+            this._ops[i].reset();
+        }
+    }
+    next(item, key, owner) {
+        let done = false;
+        let success = false;
+        for (let i = 0, { length } = this._ops; i < length; i++) {
+            const op = this._ops[i];
+            op.next(item, key, owner);
+            if (op.keep) {
+                done = true;
+                success = op.keep;
+                break;
+            }
+        }
+        this.keep = success;
+        this.done = done;
+    }
+}
+class $Nor extends $Or {
+    constructor() {
+        super(...arguments);
+        this.propop = false;
+    }
+    next(item, key, owner) {
+        super.next(item, key, owner);
+        this.keep = !this.keep;
+    }
+}
+class $In extends BaseOperation {
+    constructor() {
+        super(...arguments);
+        this.propop = true;
+    }
+    init() {
+        const params = Array.isArray(this.params) ? this.params : [this.params];
+        this._testers = params.map((value) => {
+            if (containsOperation(value, this.options)) {
+                throw new Error(`cannot nest $ under ${this.name.toLowerCase()}`);
+            }
+            return createTester(value, this.options.compare);
+        });
+    }
+    next(item, key, owner) {
+        let done = false;
+        let success = false;
+        for (let i = 0, { length } = this._testers; i < length; i++) {
+            const test = this._testers[i];
+            if (test(item)) {
+                done = true;
+                success = true;
+                break;
+            }
+        }
+        this.keep = success;
+        this.done = done;
+    }
+}
+class $Nin extends BaseOperation {
+    constructor(params, ownerQuery, options, name) {
+        super(params, ownerQuery, options, name);
+        this.propop = true;
+        this._in = new $In(params, ownerQuery, options, name);
+    }
+    next(item, key, owner, root) {
+        this._in.next(item, key, owner);
+        if (isArray(owner) && !root) {
+            if (this._in.keep) {
+                this.keep = false;
+                this.done = true;
+            }
+            else if (key == owner.length - 1) {
+                this.keep = true;
+                this.done = true;
+            }
+        }
+        else {
+            this.keep = !this._in.keep;
+            this.done = true;
+        }
+    }
+    reset() {
+        super.reset();
+        this._in.reset();
+    }
+}
+class $Exists extends BaseOperation {
+    constructor() {
+        super(...arguments);
+        this.propop = true;
+    }
+    next(item, key, owner, root, leaf) {
+        if (!leaf) {
+            this.done = true;
+            this.keep = !this.params;
+        }
+        else if (owner.hasOwnProperty(key) === this.params) {
+            this.done = true;
+            this.keep = true;
+        }
+    }
+}
+class $And extends NamedGroupOperation {
+    constructor(params, owneryQuery, options, name) {
+        super(params, owneryQuery, options, params.map((query) => createQueryOperation(query, owneryQuery, options)), name);
+        this.propop = false;
+        assertGroupNotEmpty(params);
+    }
+    next(item, key, owner, root) {
+        this.childrenNext(item, key, owner, root);
+    }
+}
+class $All extends NamedGroupOperation {
+    constructor(params, owneryQuery, options, name) {
+        super(params, owneryQuery, options, params.map((query) => createQueryOperation(query, owneryQuery, options)), name);
+        this.propop = true;
+    }
+    next(item, key, owner, root) {
+        this.childrenNext(item, key, owner, root);
+    }
+}
+const $eq = (params, owneryQuery, options) => new EqualsOperation(params, owneryQuery, options);
+const $ne = (params, owneryQuery, options, name) => new $Ne(params, owneryQuery, options, name);
+const $or = (params, owneryQuery, options, name) => new $Or(params, owneryQuery, options, name);
+const $nor = (params, owneryQuery, options, name) => new $Nor(params, owneryQuery, options, name);
+const $elemMatch = (params, owneryQuery, options, name) => new $ElemMatch(params, owneryQuery, options, name);
+const $nin = (params, owneryQuery, options, name) => new $Nin(params, owneryQuery, options, name);
+const $in = (params, owneryQuery, options, name) => {
+    return new $In(params, owneryQuery, options, name);
+};
+const $lt = numericalOperation((params) => (b) => {
+    return b != null && b < params;
+});
+const $lte = numericalOperation((params) => (b) => {
+    return b === params || b <= params;
+});
+const $gt = numericalOperation((params) => (b) => {
+    return b != null && b > params;
+});
+const $gte = numericalOperation((params) => (b) => {
+    return b === params || b >= params;
+});
+const $mod = ([mod, equalsValue], owneryQuery, options) => new EqualsOperation((b) => comparable(b) % mod === equalsValue, owneryQuery, options);
+const $exists = (params, owneryQuery, options, name) => new $Exists(params, owneryQuery, options, name);
+const $regex = (pattern, owneryQuery, options) => new EqualsOperation(new RegExp(pattern, owneryQuery.$options), owneryQuery, options);
+const $not = (params, owneryQuery, options, name) => new $Not(params, owneryQuery, options, name);
+const typeAliases = {
+    number: (v) => typeof v === "number",
+    string: (v) => typeof v === "string",
+    bool: (v) => typeof v === "boolean",
+    array: (v) => Array.isArray(v),
+    null: (v) => v === null,
+    timestamp: (v) => v instanceof Date,
+};
+const $type = (clazz, owneryQuery, options) => new EqualsOperation((b) => {
+    if (typeof clazz === "string") {
+        if (!typeAliases[clazz]) {
+            throw new Error(`Type alias does not exist`);
+        }
+        return typeAliases[clazz](b);
+    }
+    return b != null ? b instanceof clazz || b.constructor === clazz : false;
+}, owneryQuery, options);
+const $and = (params, ownerQuery, options, name) => new $And(params, ownerQuery, options, name);
+const $all = (params, ownerQuery, options, name) => new $All(params, ownerQuery, options, name);
+const $size = (params, ownerQuery, options) => new $Size(params, ownerQuery, options, "$size");
+const $options = () => null;
+const $where = (params, ownerQuery, options) => {
+    let test;
+    if (isFunction(params)) {
+        test = params;
+    }
+    else if (!process.env.CSP_ENABLED) {
+        test = new Function("obj", "return " + params);
+    }
+    else {
+        throw new Error(`In CSP mode, sift does not support strings in "$where" condition`);
+    }
+    return new EqualsOperation((b) => test.bind(b)(b), ownerQuery, options);
+};
+
+var defaultOperations = /*#__PURE__*/Object.freeze({
+    __proto__: null,
+    $Size: $Size,
+    $all: $all,
+    $and: $and,
+    $elemMatch: $elemMatch,
+    $eq: $eq,
+    $exists: $exists,
+    $gt: $gt,
+    $gte: $gte,
+    $in: $in,
+    $lt: $lt,
+    $lte: $lte,
+    $mod: $mod,
+    $ne: $ne,
+    $nin: $nin,
+    $nor: $nor,
+    $not: $not,
+    $options: $options,
+    $or: $or,
+    $regex: $regex,
+    $size: $size,
+    $type: $type,
+    $where: $where
+});
+
+const createDefaultQueryOperation = (query, ownerQuery, { compare, operations } = {}) => {
+    return createQueryOperation(query, ownerQuery, {
+        compare,
+        operations: Object.assign({}, defaultOperations, operations || {}),
+    });
+};
+const createDefaultQueryTester = (query, options = {}) => {
+    const op = createDefaultQueryOperation(query, null, options);
+    return createOperationTester(op);
+};
+
+export { $Size, $all, $and, $elemMatch, $eq, $exists, $gt, $gte, $in, $lt, $lte, $mod, $ne, $nin, $nor, $not, $options, $or, $regex, $size, $type, $where, EqualsOperation, createDefaultQueryOperation, createEqualsOperation, createOperationTester, createQueryOperation, createQueryTester, createDefaultQueryTester as default };
+//# sourceMappingURL=index.js.map
diff --git a/backend/node_modules/sift/es/index.js.map b/backend/node_modules/sift/es/index.js.map
new file mode 100644
index 0000000..8a9ff1d
--- /dev/null
+++ b/backend/node_modules/sift/es/index.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/sift/es5m/index.js b/backend/node_modules/sift/es5m/index.js
new file mode 100644
index 0000000..3136cbf
--- /dev/null
+++ b/backend/node_modules/sift/es5m/index.js
@@ -0,0 +1,743 @@
+/******************************************************************************
+Copyright (c) Microsoft Corporation.
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+***************************************************************************** */
+/* global Reflect, Promise, SuppressedError, Symbol */
+
+var extendStatics = function(d, b) {
+    extendStatics = Object.setPrototypeOf ||
+        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+        function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
+    return extendStatics(d, b);
+};
+
+function __extends(d, b) {
+    if (typeof b !== "function" && b !== null)
+        throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
+    extendStatics(d, b);
+    function __() { this.constructor = d; }
+    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+}
+
+typeof SuppressedError === "function" ? SuppressedError : function (error, suppressed, message) {
+    var e = new Error(message);
+    return e.name = "SuppressedError", e.error = error, e.suppressed = suppressed, e;
+};
+
+var typeChecker = function (type) {
+    var typeString = "[object " + type + "]";
+    return function (value) {
+        return getClassName(value) === typeString;
+    };
+};
+var getClassName = function (value) { return Object.prototype.toString.call(value); };
+var comparable = function (value) {
+    if (value instanceof Date) {
+        return value.getTime();
+    }
+    else if (isArray(value)) {
+        return value.map(comparable);
+    }
+    else if (value && typeof value.toJSON === "function") {
+        return value.toJSON();
+    }
+    return value;
+};
+var coercePotentiallyNull = function (value) {
+    return value == null ? null : value;
+};
+var isArray = typeChecker("Array");
+var isObject = typeChecker("Object");
+var isFunction = typeChecker("Function");
+var isProperty = function (item, key) {
+    return item.hasOwnProperty(key) && !isFunction(item[key]);
+};
+var isVanillaObject = function (value) {
+    return (value &&
+        (value.constructor === Object ||
+            value.constructor === Array ||
+            value.constructor.toString() === "function Object() { [native code] }" ||
+            value.constructor.toString() === "function Array() { [native code] }") &&
+        !value.toJSON);
+};
+var equals = function (a, b) {
+    if (a == null && a == b) {
+        return true;
+    }
+    if (a === b) {
+        return true;
+    }
+    if (Object.prototype.toString.call(a) !== Object.prototype.toString.call(b)) {
+        return false;
+    }
+    if (isArray(a)) {
+        if (a.length !== b.length) {
+            return false;
+        }
+        for (var i = 0, length_1 = a.length; i < length_1; i++) {
+            if (!equals(a[i], b[i]))
+                return false;
+        }
+        return true;
+    }
+    else if (isObject(a)) {
+        if (Object.keys(a).length !== Object.keys(b).length) {
+            return false;
+        }
+        for (var key in a) {
+            if (!equals(a[key], b[key]))
+                return false;
+        }
+        return true;
+    }
+    return false;
+};
+
+/**
+ * Walks through each value given the context - used for nested operations. E.g:
+ * { "person.address": { $eq: "blarg" }}
+ */
+var walkKeyPathValues = function (item, keyPath, next, depth, key, owner) {
+    var currentKey = keyPath[depth];
+    // if array, then try matching. Might fall through for cases like:
+    // { $eq: [1, 2, 3] }, [ 1, 2, 3 ].
+    if (isArray(item) &&
+        isNaN(Number(currentKey)) &&
+        !isProperty(item, currentKey)) {
+        for (var i = 0, length_1 = item.length; i < length_1; i++) {
+            // if FALSE is returned, then terminate walker. For operations, this simply
+            // means that the search critera was met.
+            if (!walkKeyPathValues(item[i], keyPath, next, depth, i, item)) {
+                return false;
+            }
+        }
+    }
+    if (depth === keyPath.length || item == null) {
+        return next(item, key, owner, depth === 0, depth === keyPath.length);
+    }
+    return walkKeyPathValues(item[currentKey], keyPath, next, depth + 1, currentKey, item);
+};
+var BaseOperation = /** @class */ (function () {
+    function BaseOperation(params, owneryQuery, options, name) {
+        this.params = params;
+        this.owneryQuery = owneryQuery;
+        this.options = options;
+        this.name = name;
+        this.init();
+    }
+    BaseOperation.prototype.init = function () { };
+    BaseOperation.prototype.reset = function () {
+        this.done = false;
+        this.keep = false;
+    };
+    return BaseOperation;
+}());
+var GroupOperation = /** @class */ (function (_super) {
+    __extends(GroupOperation, _super);
+    function GroupOperation(params, owneryQuery, options, children) {
+        var _this = _super.call(this, params, owneryQuery, options) || this;
+        _this.children = children;
+        return _this;
+    }
+    /**
+     */
+    GroupOperation.prototype.reset = function () {
+        this.keep = false;
+        this.done = false;
+        for (var i = 0, length_2 = this.children.length; i < length_2; i++) {
+            this.children[i].reset();
+        }
+    };
+    /**
+     */
+    GroupOperation.prototype.childrenNext = function (item, key, owner, root, leaf) {
+        var done = true;
+        var keep = true;
+        for (var i = 0, length_3 = this.children.length; i < length_3; i++) {
+            var childOperation = this.children[i];
+            if (!childOperation.done) {
+                childOperation.next(item, key, owner, root, leaf);
+            }
+            if (!childOperation.keep) {
+                keep = false;
+            }
+            if (childOperation.done) {
+                if (!childOperation.keep) {
+                    break;
+                }
+            }
+            else {
+                done = false;
+            }
+        }
+        this.done = done;
+        this.keep = keep;
+    };
+    return GroupOperation;
+}(BaseOperation));
+var NamedGroupOperation = /** @class */ (function (_super) {
+    __extends(NamedGroupOperation, _super);
+    function NamedGroupOperation(params, owneryQuery, options, children, name) {
+        var _this = _super.call(this, params, owneryQuery, options, children) || this;
+        _this.name = name;
+        return _this;
+    }
+    return NamedGroupOperation;
+}(GroupOperation));
+var QueryOperation = /** @class */ (function (_super) {
+    __extends(QueryOperation, _super);
+    function QueryOperation() {
+        var _this = _super !== null && _super.apply(this, arguments) || this;
+        _this.propop = true;
+        return _this;
+    }
+    /**
+     */
+    QueryOperation.prototype.next = function (item, key, parent, root) {
+        this.childrenNext(item, key, parent, root);
+    };
+    return QueryOperation;
+}(GroupOperation));
+var NestedOperation = /** @class */ (function (_super) {
+    __extends(NestedOperation, _super);
+    function NestedOperation(keyPath, params, owneryQuery, options, children) {
+        var _this = _super.call(this, params, owneryQuery, options, children) || this;
+        _this.keyPath = keyPath;
+        _this.propop = true;
+        /**
+         */
+        _this._nextNestedValue = function (value, key, owner, root, leaf) {
+            _this.childrenNext(value, key, owner, root, leaf);
+            return !_this.done;
+        };
+        return _this;
+    }
+    /**
+     */
+    NestedOperation.prototype.next = function (item, key, parent) {
+        walkKeyPathValues(item, this.keyPath, this._nextNestedValue, 0, key, parent);
+    };
+    return NestedOperation;
+}(GroupOperation));
+var createTester = function (a, compare) {
+    if (a instanceof Function) {
+        return a;
+    }
+    if (a instanceof RegExp) {
+        return function (b) {
+            var result = typeof b === "string" && a.test(b);
+            a.lastIndex = 0;
+            return result;
+        };
+    }
+    var comparableA = comparable(a);
+    return function (b) { return compare(comparableA, comparable(b)); };
+};
+var EqualsOperation = /** @class */ (function (_super) {
+    __extends(EqualsOperation, _super);
+    function EqualsOperation() {
+        var _this = _super !== null && _super.apply(this, arguments) || this;
+        _this.propop = true;
+        return _this;
+    }
+    EqualsOperation.prototype.init = function () {
+        this._test = createTester(this.params, this.options.compare);
+    };
+    EqualsOperation.prototype.next = function (item, key, parent) {
+        if (!Array.isArray(parent) || parent.hasOwnProperty(key)) {
+            if (this._test(item, key, parent)) {
+                this.done = true;
+                this.keep = true;
+            }
+        }
+    };
+    return EqualsOperation;
+}(BaseOperation));
+var createEqualsOperation = function (params, owneryQuery, options) { return new EqualsOperation(params, owneryQuery, options); };
+var numericalOperationCreator = function (createNumericalOperation) {
+    return function (params, owneryQuery, options, name) {
+        return createNumericalOperation(params, owneryQuery, options, name);
+    };
+};
+var numericalOperation = function (createTester) {
+    return numericalOperationCreator(function (params, owneryQuery, options, name) {
+        var typeofParams = typeof comparable(params);
+        var test = createTester(params);
+        return new EqualsOperation(function (b) {
+            var actualValue = coercePotentiallyNull(b);
+            return (typeof comparable(actualValue) === typeofParams && test(actualValue));
+        }, owneryQuery, options, name);
+    });
+};
+var createNamedOperation = function (name, params, parentQuery, options) {
+    var operationCreator = options.operations[name];
+    if (!operationCreator) {
+        throwUnsupportedOperation(name);
+    }
+    return operationCreator(params, parentQuery, options, name);
+};
+var throwUnsupportedOperation = function (name) {
+    throw new Error("Unsupported operation: ".concat(name));
+};
+var containsOperation = function (query, options) {
+    for (var key in query) {
+        if (options.operations.hasOwnProperty(key) || key.charAt(0) === "$")
+            return true;
+    }
+    return false;
+};
+var createNestedOperation = function (keyPath, nestedQuery, parentKey, owneryQuery, options) {
+    if (containsOperation(nestedQuery, options)) {
+        var _a = createQueryOperations(nestedQuery, parentKey, options), selfOperations = _a[0], nestedOperations = _a[1];
+        if (nestedOperations.length) {
+            throw new Error("Property queries must contain only operations, or exact objects.");
+        }
+        return new NestedOperation(keyPath, nestedQuery, owneryQuery, options, selfOperations);
+    }
+    return new NestedOperation(keyPath, nestedQuery, owneryQuery, options, [
+        new EqualsOperation(nestedQuery, owneryQuery, options),
+    ]);
+};
+var createQueryOperation = function (query, owneryQuery, _a) {
+    if (owneryQuery === void 0) { owneryQuery = null; }
+    var _b = _a === void 0 ? {} : _a, compare = _b.compare, operations = _b.operations;
+    var options = {
+        compare: compare || equals,
+        operations: Object.assign({}, operations || {}),
+    };
+    var _c = createQueryOperations(query, null, options), selfOperations = _c[0], nestedOperations = _c[1];
+    var ops = [];
+    if (selfOperations.length) {
+        ops.push(new NestedOperation([], query, owneryQuery, options, selfOperations));
+    }
+    ops.push.apply(ops, nestedOperations);
+    if (ops.length === 1) {
+        return ops[0];
+    }
+    return new QueryOperation(query, owneryQuery, options, ops);
+};
+var createQueryOperations = function (query, parentKey, options) {
+    var selfOperations = [];
+    var nestedOperations = [];
+    if (!isVanillaObject(query)) {
+        selfOperations.push(new EqualsOperation(query, query, options));
+        return [selfOperations, nestedOperations];
+    }
+    for (var key in query) {
+        if (options.operations.hasOwnProperty(key)) {
+            var op = createNamedOperation(key, query[key], query, options);
+            if (op) {
+                if (!op.propop && parentKey && !options.operations[parentKey]) {
+                    throw new Error("Malformed query. ".concat(key, " cannot be matched against property."));
+                }
+            }
+            // probably just a flag for another operation (like $options)
+            if (op != null) {
+                selfOperations.push(op);
+            }
+        }
+        else if (key.charAt(0) === "$") {
+            throwUnsupportedOperation(key);
+        }
+        else {
+            nestedOperations.push(createNestedOperation(key.split("."), query[key], key, query, options));
+        }
+    }
+    return [selfOperations, nestedOperations];
+};
+var createOperationTester = function (operation) {
+    return function (item, key, owner) {
+        operation.reset();
+        operation.next(item, key, owner);
+        return operation.keep;
+    };
+};
+var createQueryTester = function (query, options) {
+    if (options === void 0) { options = {}; }
+    return createOperationTester(createQueryOperation(query, null, options));
+};
+
+var $Ne = /** @class */ (function (_super) {
+    __extends($Ne, _super);
+    function $Ne() {
+        var _this = _super !== null && _super.apply(this, arguments) || this;
+        _this.propop = true;
+        return _this;
+    }
+    $Ne.prototype.init = function () {
+        this._test = createTester(this.params, this.options.compare);
+    };
+    $Ne.prototype.reset = function () {
+        _super.prototype.reset.call(this);
+        this.keep = true;
+    };
+    $Ne.prototype.next = function (item) {
+        if (this._test(item)) {
+            this.done = true;
+            this.keep = false;
+        }
+    };
+    return $Ne;
+}(BaseOperation));
+// https://docs.mongodb.com/manual/reference/operator/query/elemMatch/
+var $ElemMatch = /** @class */ (function (_super) {
+    __extends($ElemMatch, _super);
+    function $ElemMatch() {
+        var _this = _super !== null && _super.apply(this, arguments) || this;
+        _this.propop = true;
+        return _this;
+    }
+    $ElemMatch.prototype.init = function () {
+        if (!this.params || typeof this.params !== "object") {
+            throw new Error("Malformed query. $elemMatch must by an object.");
+        }
+        this._queryOperation = createQueryOperation(this.params, this.owneryQuery, this.options);
+    };
+    $ElemMatch.prototype.reset = function () {
+        _super.prototype.reset.call(this);
+        this._queryOperation.reset();
+    };
+    $ElemMatch.prototype.next = function (item) {
+        if (isArray(item)) {
+            for (var i = 0, length_1 = item.length; i < length_1; i++) {
+                // reset query operation since item being tested needs to pass _all_ query
+                // operations for it to be a success
+                this._queryOperation.reset();
+                var child = item[i];
+                this._queryOperation.next(child, i, item, false);
+                this.keep = this.keep || this._queryOperation.keep;
+            }
+            this.done = true;
+        }
+        else {
+            this.done = false;
+            this.keep = false;
+        }
+    };
+    return $ElemMatch;
+}(BaseOperation));
+var $Not = /** @class */ (function (_super) {
+    __extends($Not, _super);
+    function $Not() {
+        var _this = _super !== null && _super.apply(this, arguments) || this;
+        _this.propop = true;
+        return _this;
+    }
+    $Not.prototype.init = function () {
+        this._queryOperation = createQueryOperation(this.params, this.owneryQuery, this.options);
+    };
+    $Not.prototype.reset = function () {
+        _super.prototype.reset.call(this);
+        this._queryOperation.reset();
+    };
+    $Not.prototype.next = function (item, key, owner, root) {
+        this._queryOperation.next(item, key, owner, root);
+        this.done = this._queryOperation.done;
+        this.keep = !this._queryOperation.keep;
+    };
+    return $Not;
+}(BaseOperation));
+var $Size = /** @class */ (function (_super) {
+    __extends($Size, _super);
+    function $Size() {
+        var _this = _super !== null && _super.apply(this, arguments) || this;
+        _this.propop = true;
+        return _this;
+    }
+    $Size.prototype.init = function () { };
+    $Size.prototype.next = function (item) {
+        if (isArray(item) && item.length === this.params) {
+            this.done = true;
+            this.keep = true;
+        }
+        // if (parent && parent.length === this.params) {
+        //   this.done = true;
+        //   this.keep = true;
+        // }
+    };
+    return $Size;
+}(BaseOperation));
+var assertGroupNotEmpty = function (values) {
+    if (values.length === 0) {
+        throw new Error("$and/$or/$nor must be a nonempty array");
+    }
+};
+var $Or = /** @class */ (function (_super) {
+    __extends($Or, _super);
+    function $Or() {
+        var _this = _super !== null && _super.apply(this, arguments) || this;
+        _this.propop = false;
+        return _this;
+    }
+    $Or.prototype.init = function () {
+        var _this = this;
+        assertGroupNotEmpty(this.params);
+        this._ops = this.params.map(function (op) {
+            return createQueryOperation(op, null, _this.options);
+        });
+    };
+    $Or.prototype.reset = function () {
+        this.done = false;
+        this.keep = false;
+        for (var i = 0, length_2 = this._ops.length; i < length_2; i++) {
+            this._ops[i].reset();
+        }
+    };
+    $Or.prototype.next = function (item, key, owner) {
+        var done = false;
+        var success = false;
+        for (var i = 0, length_3 = this._ops.length; i < length_3; i++) {
+            var op = this._ops[i];
+            op.next(item, key, owner);
+            if (op.keep) {
+                done = true;
+                success = op.keep;
+                break;
+            }
+        }
+        this.keep = success;
+        this.done = done;
+    };
+    return $Or;
+}(BaseOperation));
+var $Nor = /** @class */ (function (_super) {
+    __extends($Nor, _super);
+    function $Nor() {
+        var _this = _super !== null && _super.apply(this, arguments) || this;
+        _this.propop = false;
+        return _this;
+    }
+    $Nor.prototype.next = function (item, key, owner) {
+        _super.prototype.next.call(this, item, key, owner);
+        this.keep = !this.keep;
+    };
+    return $Nor;
+}($Or));
+var $In = /** @class */ (function (_super) {
+    __extends($In, _super);
+    function $In() {
+        var _this = _super !== null && _super.apply(this, arguments) || this;
+        _this.propop = true;
+        return _this;
+    }
+    $In.prototype.init = function () {
+        var _this = this;
+        var params = Array.isArray(this.params) ? this.params : [this.params];
+        this._testers = params.map(function (value) {
+            if (containsOperation(value, _this.options)) {
+                throw new Error("cannot nest $ under ".concat(_this.name.toLowerCase()));
+            }
+            return createTester(value, _this.options.compare);
+        });
+    };
+    $In.prototype.next = function (item, key, owner) {
+        var done = false;
+        var success = false;
+        for (var i = 0, length_4 = this._testers.length; i < length_4; i++) {
+            var test = this._testers[i];
+            if (test(item)) {
+                done = true;
+                success = true;
+                break;
+            }
+        }
+        this.keep = success;
+        this.done = done;
+    };
+    return $In;
+}(BaseOperation));
+var $Nin = /** @class */ (function (_super) {
+    __extends($Nin, _super);
+    function $Nin(params, ownerQuery, options, name) {
+        var _this = _super.call(this, params, ownerQuery, options, name) || this;
+        _this.propop = true;
+        _this._in = new $In(params, ownerQuery, options, name);
+        return _this;
+    }
+    $Nin.prototype.next = function (item, key, owner, root) {
+        this._in.next(item, key, owner);
+        if (isArray(owner) && !root) {
+            if (this._in.keep) {
+                this.keep = false;
+                this.done = true;
+            }
+            else if (key == owner.length - 1) {
+                this.keep = true;
+                this.done = true;
+            }
+        }
+        else {
+            this.keep = !this._in.keep;
+            this.done = true;
+        }
+    };
+    $Nin.prototype.reset = function () {
+        _super.prototype.reset.call(this);
+        this._in.reset();
+    };
+    return $Nin;
+}(BaseOperation));
+var $Exists = /** @class */ (function (_super) {
+    __extends($Exists, _super);
+    function $Exists() {
+        var _this = _super !== null && _super.apply(this, arguments) || this;
+        _this.propop = true;
+        return _this;
+    }
+    $Exists.prototype.next = function (item, key, owner, root, leaf) {
+        if (!leaf) {
+            this.done = true;
+            this.keep = !this.params;
+        }
+        else if (owner.hasOwnProperty(key) === this.params) {
+            this.done = true;
+            this.keep = true;
+        }
+    };
+    return $Exists;
+}(BaseOperation));
+var $And = /** @class */ (function (_super) {
+    __extends($And, _super);
+    function $And(params, owneryQuery, options, name) {
+        var _this = _super.call(this, params, owneryQuery, options, params.map(function (query) { return createQueryOperation(query, owneryQuery, options); }), name) || this;
+        _this.propop = false;
+        assertGroupNotEmpty(params);
+        return _this;
+    }
+    $And.prototype.next = function (item, key, owner, root) {
+        this.childrenNext(item, key, owner, root);
+    };
+    return $And;
+}(NamedGroupOperation));
+var $All = /** @class */ (function (_super) {
+    __extends($All, _super);
+    function $All(params, owneryQuery, options, name) {
+        var _this = _super.call(this, params, owneryQuery, options, params.map(function (query) { return createQueryOperation(query, owneryQuery, options); }), name) || this;
+        _this.propop = true;
+        return _this;
+    }
+    $All.prototype.next = function (item, key, owner, root) {
+        this.childrenNext(item, key, owner, root);
+    };
+    return $All;
+}(NamedGroupOperation));
+var $eq = function (params, owneryQuery, options) {
+    return new EqualsOperation(params, owneryQuery, options);
+};
+var $ne = function (params, owneryQuery, options, name) { return new $Ne(params, owneryQuery, options, name); };
+var $or = function (params, owneryQuery, options, name) { return new $Or(params, owneryQuery, options, name); };
+var $nor = function (params, owneryQuery, options, name) { return new $Nor(params, owneryQuery, options, name); };
+var $elemMatch = function (params, owneryQuery, options, name) { return new $ElemMatch(params, owneryQuery, options, name); };
+var $nin = function (params, owneryQuery, options, name) { return new $Nin(params, owneryQuery, options, name); };
+var $in = function (params, owneryQuery, options, name) {
+    return new $In(params, owneryQuery, options, name);
+};
+var $lt = numericalOperation(function (params) { return function (b) {
+    return b != null && b < params;
+}; });
+var $lte = numericalOperation(function (params) { return function (b) {
+    return b === params || b <= params;
+}; });
+var $gt = numericalOperation(function (params) { return function (b) {
+    return b != null && b > params;
+}; });
+var $gte = numericalOperation(function (params) { return function (b) {
+    return b === params || b >= params;
+}; });
+var $mod = function (_a, owneryQuery, options) {
+    var mod = _a[0], equalsValue = _a[1];
+    return new EqualsOperation(function (b) { return comparable(b) % mod === equalsValue; }, owneryQuery, options);
+};
+var $exists = function (params, owneryQuery, options, name) { return new $Exists(params, owneryQuery, options, name); };
+var $regex = function (pattern, owneryQuery, options) {
+    return new EqualsOperation(new RegExp(pattern, owneryQuery.$options), owneryQuery, options);
+};
+var $not = function (params, owneryQuery, options, name) { return new $Not(params, owneryQuery, options, name); };
+var typeAliases = {
+    number: function (v) { return typeof v === "number"; },
+    string: function (v) { return typeof v === "string"; },
+    bool: function (v) { return typeof v === "boolean"; },
+    array: function (v) { return Array.isArray(v); },
+    null: function (v) { return v === null; },
+    timestamp: function (v) { return v instanceof Date; },
+};
+var $type = function (clazz, owneryQuery, options) {
+    return new EqualsOperation(function (b) {
+        if (typeof clazz === "string") {
+            if (!typeAliases[clazz]) {
+                throw new Error("Type alias does not exist");
+            }
+            return typeAliases[clazz](b);
+        }
+        return b != null ? b instanceof clazz || b.constructor === clazz : false;
+    }, owneryQuery, options);
+};
+var $and = function (params, ownerQuery, options, name) { return new $And(params, ownerQuery, options, name); };
+var $all = function (params, ownerQuery, options, name) { return new $All(params, ownerQuery, options, name); };
+var $size = function (params, ownerQuery, options) { return new $Size(params, ownerQuery, options, "$size"); };
+var $options = function () { return null; };
+var $where = function (params, ownerQuery, options) {
+    var test;
+    if (isFunction(params)) {
+        test = params;
+    }
+    else if (!process.env.CSP_ENABLED) {
+        test = new Function("obj", "return " + params);
+    }
+    else {
+        throw new Error("In CSP mode, sift does not support strings in \"$where\" condition");
+    }
+    return new EqualsOperation(function (b) { return test.bind(b)(b); }, ownerQuery, options);
+};
+
+var defaultOperations = /*#__PURE__*/Object.freeze({
+    __proto__: null,
+    $Size: $Size,
+    $all: $all,
+    $and: $and,
+    $elemMatch: $elemMatch,
+    $eq: $eq,
+    $exists: $exists,
+    $gt: $gt,
+    $gte: $gte,
+    $in: $in,
+    $lt: $lt,
+    $lte: $lte,
+    $mod: $mod,
+    $ne: $ne,
+    $nin: $nin,
+    $nor: $nor,
+    $not: $not,
+    $options: $options,
+    $or: $or,
+    $regex: $regex,
+    $size: $size,
+    $type: $type,
+    $where: $where
+});
+
+var createDefaultQueryOperation = function (query, ownerQuery, _a) {
+    var _b = _a === void 0 ? {} : _a, compare = _b.compare, operations = _b.operations;
+    return createQueryOperation(query, ownerQuery, {
+        compare: compare,
+        operations: Object.assign({}, defaultOperations, operations || {}),
+    });
+};
+var createDefaultQueryTester = function (query, options) {
+    if (options === void 0) { options = {}; }
+    var op = createDefaultQueryOperation(query, null, options);
+    return createOperationTester(op);
+};
+
+export { $Size, $all, $and, $elemMatch, $eq, $exists, $gt, $gte, $in, $lt, $lte, $mod, $ne, $nin, $nor, $not, $options, $or, $regex, $size, $type, $where, EqualsOperation, createDefaultQueryOperation, createEqualsOperation, createOperationTester, createQueryOperation, createQueryTester, createDefaultQueryTester as default };
+//# sourceMappingURL=index.js.map
diff --git a/backend/node_modules/sift/es5m/index.js.map b/backend/node_modules/sift/es5m/index.js.map
new file mode 100644
index 0000000..8523755
--- /dev/null
+++ b/backend/node_modules/sift/es5m/index.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sources":["../node_modules/tslib/tslib.es6.js","../src/utils.ts","../src/core.ts","../src/operations.ts","../src/index.ts"],"sourcesContent":["/******************************************************************************\r\nCopyright (c) Microsoft Corporation.\r\n\r\nPermission to use, copy, modify, and/or distribute this software for any\r\npurpose with or without fee is hereby granted.\r\n\r\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\r\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\r\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n/* global Reflect, Promise, SuppressedError, Symbol */\r\n\r\nvar extendStatics = function(d, b) {\r\n    extendStatics = Object.setPrototypeOf ||\r\n        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n        function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\r\n    return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n    if (typeof b !== \"function\" && b !== null)\r\n        throw new TypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\r\n    extendStatics(d, b);\r\n    function __() { this.constructor = d; }\r\n    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\r\n}\r\n\r\nexport var __assign = function() {\r\n    __assign = Object.assign || function __assign(t) {\r\n        for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n            s = arguments[i];\r\n            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\r\n        }\r\n        return t;\r\n    }\r\n    return __assign.apply(this, arguments);\r\n}\r\n\r\nexport function __rest(s, e) {\r\n    var t = {};\r\n    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\r\n        t[p] = s[p];\r\n    if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\r\n        for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\r\n            if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\r\n                t[p[i]] = s[p[i]];\r\n        }\r\n    return t;\r\n}\r\n\r\nexport function __decorate(decorators, target, key, desc) {\r\n    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\r\n    if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\r\n    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\r\n    return c > 3 && r && Object.defineProperty(target, key, r), r;\r\n}\r\n\r\nexport function __param(paramIndex, decorator) {\r\n    return function (target, key) { decorator(target, key, paramIndex); }\r\n}\r\n\r\nexport function __esDecorate(ctor, descriptorIn, decorators, contextIn, initializers, extraInitializers) {\r\n    function accept(f) { if (f !== void 0 && typeof f !== \"function\") throw new TypeError(\"Function expected\"); return f; }\r\n    var kind = contextIn.kind, key = kind === \"getter\" ? \"get\" : kind === \"setter\" ? \"set\" : \"value\";\r\n    var target = !descriptorIn && ctor ? contextIn[\"static\"] ? ctor : ctor.prototype : null;\r\n    var descriptor = descriptorIn || (target ? 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(this.v = v, this) : new __await(v);\r\n}\r\n\r\nexport function __asyncGenerator(thisArg, _arguments, generator) {\r\n    if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n    var g = generator.apply(thisArg, _arguments || []), i, q = [];\r\n    return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\r\n    function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\r\n    function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\r\n    function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\r\n    function fulfill(value) { resume(\"next\", value); }\r\n    function reject(value) { resume(\"throw\", value); }\r\n    function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\r\n}\r\n\r\nexport function __asyncDelegator(o) {\r\n    var i, p;\r\n    return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\r\n    function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: false } : f ? f(v) : v; } : f; }\r\n}\r\n\r\nexport function __asyncValues(o) {\r\n    if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n    var m = o[Symbol.asyncIterator], i;\r\n    return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\r\n    function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\r\n    function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\r\n}\r\n\r\nexport function __makeTemplateObject(cooked, raw) {\r\n    if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\r\n    return cooked;\r\n};\r\n\r\nvar __setModuleDefault = Object.create ? (function(o, v) {\r\n    Object.defineProperty(o, \"default\", { enumerable: true, value: v });\r\n}) : function(o, v) {\r\n    o[\"default\"] = v;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n    if (mod && mod.__esModule) return mod;\r\n    var result = {};\r\n    if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\r\n    __setModuleDefault(result, mod);\r\n    return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n    return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n\r\nexport function __classPrivateFieldGet(receiver, state, kind, f) {\r\n    if (kind === \"a\" && !f) throw new TypeError(\"Private accessor was defined without a getter\");\r\n    if (typeof state === \"function\" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError(\"Cannot read private member from an object whose class did not declare it\");\r\n    return kind === \"m\" ? f : kind === \"a\" ? f.call(receiver) : f ? f.value : state.get(receiver);\r\n}\r\n\r\nexport function __classPrivateFieldSet(receiver, state, value, kind, f) {\r\n    if (kind === \"m\") throw new TypeError(\"Private method is not writable\");\r\n    if (kind === \"a\" && !f) throw new TypeError(\"Private accessor was defined without a setter\");\r\n    if (typeof state === \"function\" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError(\"Cannot write private member to an object whose class did not declare it\");\r\n    return (kind === \"a\" ? f.call(receiver, value) : f ? f.value = value : state.set(receiver, value)), value;\r\n}\r\n\r\nexport function __classPrivateFieldIn(state, receiver) {\r\n    if (receiver === null || (typeof receiver !== \"object\" && typeof receiver !== \"function\")) throw new TypeError(\"Cannot use 'in' operator on non-object\");\r\n    return typeof state === \"function\" ? receiver === state : state.has(receiver);\r\n}\r\n\r\nexport function __addDisposableResource(env, value, async) {\r\n    if (value !== null && value !== void 0) {\r\n        if (typeof value !== \"object\" && typeof value !== \"function\") throw new TypeError(\"Object expected.\");\r\n        var dispose;\r\n        if (async) {\r\n            if (!Symbol.asyncDispose) throw new TypeError(\"Symbol.asyncDispose is not defined.\");\r\n            dispose = value[Symbol.asyncDispose];\r\n        }\r\n        if (dispose === void 0) {\r\n            if (!Symbol.dispose) throw new TypeError(\"Symbol.dispose is not defined.\");\r\n            dispose = value[Symbol.dispose];\r\n        }\r\n        if (typeof dispose !== \"function\") throw new TypeError(\"Object not disposable.\");\r\n        env.stack.push({ value: value, dispose: dispose, async: async });\r\n    }\r\n    else if (async) {\r\n        env.stack.push({ async: true });\r\n    }\r\n    return value;\r\n}\r\n\r\nvar _SuppressedError = typeof SuppressedError === \"function\" ? 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diff --git a/backend/node_modules/sift/index.d.ts b/backend/node_modules/sift/index.d.ts
new file mode 100644
index 0000000..2b82571
--- /dev/null
+++ b/backend/node_modules/sift/index.d.ts
@@ -0,0 +1,4 @@
+import sift from "./lib";
+
+export default sift;
+export * from "./lib";
diff --git a/backend/node_modules/sift/index.js b/backend/node_modules/sift/index.js
new file mode 100644
index 0000000..449294a
--- /dev/null
+++ b/backend/node_modules/sift/index.js
@@ -0,0 +1,4 @@
+const lib = require("./lib");
+
+module.exports = lib.default;
+Object.assign(module.exports, lib);
diff --git a/backend/node_modules/sift/lib/core.d.ts b/backend/node_modules/sift/lib/core.d.ts
new file mode 100644
index 0000000..1e801ae
--- /dev/null
+++ b/backend/node_modules/sift/lib/core.d.ts
@@ -0,0 +1,116 @@
+import { Key, Comparator } from "./utils";
+export interface Operation<TItem> {
+    readonly keep: boolean;
+    readonly done: boolean;
+    propop: boolean;
+    reset(): any;
+    next(item: TItem, key?: Key, owner?: any, root?: boolean, leaf?: boolean): any;
+}
+export type Tester = (item: any, key?: Key, owner?: any, root?: boolean, leaf?: boolean) => boolean;
+export interface NamedOperation {
+    name: string;
+}
+export type OperationCreator<TItem> = (params: any, parentQuery: any, options: Options, name: string) => Operation<TItem>;
+export type BasicValueQuery<TValue> = {
+    $eq?: TValue;
+    $ne?: TValue;
+    $lt?: TValue;
+    $gt?: TValue;
+    $lte?: TValue;
+    $gte?: TValue;
+    $in?: TValue[];
+    $nin?: TValue[];
+    $all?: TValue[];
+    $mod?: [number, number];
+    $exists?: boolean;
+    $regex?: string | RegExp;
+    $size?: number;
+    $where?: ((this: TValue, obj: TValue) => boolean) | string;
+    $options?: "i" | "g" | "m" | "u";
+    $type?: Function;
+    $not?: NestedQuery<TValue>;
+    $or?: NestedQuery<TValue>[];
+    $nor?: NestedQuery<TValue>[];
+    $and?: NestedQuery<TValue>[];
+};
+export type ArrayValueQuery<TValue> = {
+    $elemMatch?: Query<TValue>;
+} & BasicValueQuery<TValue>;
+type Unpacked<T> = T extends (infer U)[] ? U : T;
+export type ValueQuery<TValue> = TValue extends Array<any> ? ArrayValueQuery<Unpacked<TValue>> : BasicValueQuery<TValue>;
+type NotObject = string | number | Date | boolean | Array<any>;
+export type ShapeQuery<TItemSchema> = TItemSchema extends NotObject ? {} : {
+    [k in keyof TItemSchema]?: TItemSchema[k] | ValueQuery<TItemSchema[k]>;
+};
+export type NestedQuery<TItemSchema> = ValueQuery<TItemSchema> & ShapeQuery<TItemSchema>;
+export type Query<TItemSchema> = TItemSchema | RegExp | NestedQuery<TItemSchema>;
+export type QueryOperators<TValue = any> = keyof ValueQuery<TValue>;
+export declare abstract class BaseOperation<TParams, TItem = any> implements Operation<TItem> {
+    readonly params: TParams;
+    readonly owneryQuery: any;
+    readonly options: Options;
+    readonly name?: string;
+    keep: boolean;
+    done: boolean;
+    abstract propop: boolean;
+    constructor(params: TParams, owneryQuery: any, options: Options, name?: string);
+    protected init(): void;
+    reset(): void;
+    abstract next(item: any, key: Key, parent: any, root: boolean, leaf?: boolean): any;
+}
+declare abstract class GroupOperation extends BaseOperation<any> {
+    readonly children: Operation<any>[];
+    keep: boolean;
+    done: boolean;
+    constructor(params: any, owneryQuery: any, options: Options, children: Operation<any>[]);
+    /**
+     */
+    reset(): void;
+    abstract next(item: any, key: Key, owner: any, root: boolean): any;
+    /**
+     */
+    protected childrenNext(item: any, key: Key, owner: any, root: boolean, leaf?: boolean): void;
+}
+export declare abstract class NamedGroupOperation extends GroupOperation implements NamedOperation {
+    readonly name: string;
+    abstract propop: boolean;
+    constructor(params: any, owneryQuery: any, options: Options, children: Operation<any>[], name: string);
+}
+export declare class QueryOperation<TItem> extends GroupOperation {
+    readonly propop = true;
+    /**
+     */
+    next(item: TItem, key: Key, parent: any, root: boolean): void;
+}
+export declare class NestedOperation extends GroupOperation {
+    readonly keyPath: Key[];
+    readonly propop = true;
+    constructor(keyPath: Key[], params: any, owneryQuery: any, options: Options, children: Operation<any>[]);
+    /**
+     */
+    next(item: any, key: Key, parent: any): void;
+    /**
+     */
+    private _nextNestedValue;
+}
+export declare const createTester: (a: any, compare: Comparator) => any;
+export declare class EqualsOperation<TParam> extends BaseOperation<TParam> {
+    readonly propop = true;
+    private _test;
+    init(): void;
+    next(item: any, key: Key, parent: any): void;
+}
+export declare const createEqualsOperation: (params: any, owneryQuery: any, options: Options) => EqualsOperation<any>;
+export declare const numericalOperationCreator: (createNumericalOperation: OperationCreator<any>) => (params: any, owneryQuery: any, options: Options, name: string) => Operation<any>;
+export declare const numericalOperation: (createTester: (value: any) => Tester) => (params: any, owneryQuery: any, options: Options, name: string) => Operation<any>;
+export type Options = {
+    operations: {
+        [identifier: string]: OperationCreator<any>;
+    };
+    compare: (a: any, b: any) => boolean;
+};
+export declare const containsOperation: (query: any, options: Options) => boolean;
+export declare const createQueryOperation: <TItem, TSchema = TItem>(query: Query<TSchema>, owneryQuery?: any, { compare, operations }?: Partial<Options>) => QueryOperation<TItem>;
+export declare const createOperationTester: <TItem>(operation: Operation<TItem>) => (item: TItem, key?: Key, owner?: any) => boolean;
+export declare const createQueryTester: <TItem, TSchema = TItem>(query: Query<TSchema>, options?: Partial<Options>) => (item: TItem, key?: Key, owner?: any) => boolean;
+export {};
diff --git a/backend/node_modules/sift/lib/index.d.ts b/backend/node_modules/sift/lib/index.d.ts
new file mode 100644
index 0000000..6218e8b
--- /dev/null
+++ b/backend/node_modules/sift/lib/index.d.ts
@@ -0,0 +1,6 @@
+import { Query, QueryOperators, BasicValueQuery, ArrayValueQuery, ValueQuery, NestedQuery, ShapeQuery, Options, createQueryTester, EqualsOperation, createQueryOperation, createEqualsOperation, createOperationTester } from "./core";
+declare const createDefaultQueryOperation: <TItem, TSchema extends TItem = TItem>(query: Query<TSchema>, ownerQuery: any, { compare, operations }?: Partial<Options>) => import("./core").QueryOperation<unknown>;
+declare const createDefaultQueryTester: <TItem, TSchema extends TItem = TItem>(query: Query<TSchema>, options?: Partial<Options>) => (item: unknown, key?: import("./utils").Key, owner?: any) => boolean;
+export { Query, QueryOperators, BasicValueQuery, ArrayValueQuery, ValueQuery, NestedQuery, ShapeQuery, EqualsOperation, createQueryTester, createOperationTester, createDefaultQueryOperation, createEqualsOperation, createQueryOperation, };
+export * from "./operations";
+export default createDefaultQueryTester;
diff --git a/backend/node_modules/sift/lib/index.js b/backend/node_modules/sift/lib/index.js
new file mode 100644
index 0000000..d0d8933
--- /dev/null
+++ b/backend/node_modules/sift/lib/index.js
@@ -0,0 +1,781 @@
+(function (global, factory) {
+    typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+    typeof define === 'function' && define.amd ? define(['exports'], factory) :
+    (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.sift = {}));
+})(this, (function (exports) { 'use strict';
+
+    /******************************************************************************
+    Copyright (c) Microsoft Corporation.
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose with or without fee is hereby granted.
+
+    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+    REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+    AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+    INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+    LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+    OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+    PERFORMANCE OF THIS SOFTWARE.
+    ***************************************************************************** */
+    /* global Reflect, Promise, SuppressedError, Symbol */
+
+    var extendStatics = function(d, b) {
+        extendStatics = Object.setPrototypeOf ||
+            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
+        return extendStatics(d, b);
+    };
+
+    function __extends(d, b) {
+        if (typeof b !== "function" && b !== null)
+            throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
+        extendStatics(d, b);
+        function __() { this.constructor = d; }
+        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+    }
+
+    typeof SuppressedError === "function" ? SuppressedError : function (error, suppressed, message) {
+        var e = new Error(message);
+        return e.name = "SuppressedError", e.error = error, e.suppressed = suppressed, e;
+    };
+
+    var typeChecker = function (type) {
+        var typeString = "[object " + type + "]";
+        return function (value) {
+            return getClassName(value) === typeString;
+        };
+    };
+    var getClassName = function (value) { return Object.prototype.toString.call(value); };
+    var comparable = function (value) {
+        if (value instanceof Date) {
+            return value.getTime();
+        }
+        else if (isArray(value)) {
+            return value.map(comparable);
+        }
+        else if (value && typeof value.toJSON === "function") {
+            return value.toJSON();
+        }
+        return value;
+    };
+    var coercePotentiallyNull = function (value) {
+        return value == null ? null : value;
+    };
+    var isArray = typeChecker("Array");
+    var isObject = typeChecker("Object");
+    var isFunction = typeChecker("Function");
+    var isProperty = function (item, key) {
+        return item.hasOwnProperty(key) && !isFunction(item[key]);
+    };
+    var isVanillaObject = function (value) {
+        return (value &&
+            (value.constructor === Object ||
+                value.constructor === Array ||
+                value.constructor.toString() === "function Object() { [native code] }" ||
+                value.constructor.toString() === "function Array() { [native code] }") &&
+            !value.toJSON);
+    };
+    var equals = function (a, b) {
+        if (a == null && a == b) {
+            return true;
+        }
+        if (a === b) {
+            return true;
+        }
+        if (Object.prototype.toString.call(a) !== Object.prototype.toString.call(b)) {
+            return false;
+        }
+        if (isArray(a)) {
+            if (a.length !== b.length) {
+                return false;
+            }
+            for (var i = 0, length_1 = a.length; i < length_1; i++) {
+                if (!equals(a[i], b[i]))
+                    return false;
+            }
+            return true;
+        }
+        else if (isObject(a)) {
+            if (Object.keys(a).length !== Object.keys(b).length) {
+                return false;
+            }
+            for (var key in a) {
+                if (!equals(a[key], b[key]))
+                    return false;
+            }
+            return true;
+        }
+        return false;
+    };
+
+    /**
+     * Walks through each value given the context - used for nested operations. E.g:
+     * { "person.address": { $eq: "blarg" }}
+     */
+    var walkKeyPathValues = function (item, keyPath, next, depth, key, owner) {
+        var currentKey = keyPath[depth];
+        // if array, then try matching. Might fall through for cases like:
+        // { $eq: [1, 2, 3] }, [ 1, 2, 3 ].
+        if (isArray(item) &&
+            isNaN(Number(currentKey)) &&
+            !isProperty(item, currentKey)) {
+            for (var i = 0, length_1 = item.length; i < length_1; i++) {
+                // if FALSE is returned, then terminate walker. For operations, this simply
+                // means that the search critera was met.
+                if (!walkKeyPathValues(item[i], keyPath, next, depth, i, item)) {
+                    return false;
+                }
+            }
+        }
+        if (depth === keyPath.length || item == null) {
+            return next(item, key, owner, depth === 0, depth === keyPath.length);
+        }
+        return walkKeyPathValues(item[currentKey], keyPath, next, depth + 1, currentKey, item);
+    };
+    var BaseOperation = /** @class */ (function () {
+        function BaseOperation(params, owneryQuery, options, name) {
+            this.params = params;
+            this.owneryQuery = owneryQuery;
+            this.options = options;
+            this.name = name;
+            this.init();
+        }
+        BaseOperation.prototype.init = function () { };
+        BaseOperation.prototype.reset = function () {
+            this.done = false;
+            this.keep = false;
+        };
+        return BaseOperation;
+    }());
+    var GroupOperation = /** @class */ (function (_super) {
+        __extends(GroupOperation, _super);
+        function GroupOperation(params, owneryQuery, options, children) {
+            var _this = _super.call(this, params, owneryQuery, options) || this;
+            _this.children = children;
+            return _this;
+        }
+        /**
+         */
+        GroupOperation.prototype.reset = function () {
+            this.keep = false;
+            this.done = false;
+            for (var i = 0, length_2 = this.children.length; i < length_2; i++) {
+                this.children[i].reset();
+            }
+        };
+        /**
+         */
+        GroupOperation.prototype.childrenNext = function (item, key, owner, root, leaf) {
+            var done = true;
+            var keep = true;
+            for (var i = 0, length_3 = this.children.length; i < length_3; i++) {
+                var childOperation = this.children[i];
+                if (!childOperation.done) {
+                    childOperation.next(item, key, owner, root, leaf);
+                }
+                if (!childOperation.keep) {
+                    keep = false;
+                }
+                if (childOperation.done) {
+                    if (!childOperation.keep) {
+                        break;
+                    }
+                }
+                else {
+                    done = false;
+                }
+            }
+            this.done = done;
+            this.keep = keep;
+        };
+        return GroupOperation;
+    }(BaseOperation));
+    var NamedGroupOperation = /** @class */ (function (_super) {
+        __extends(NamedGroupOperation, _super);
+        function NamedGroupOperation(params, owneryQuery, options, children, name) {
+            var _this = _super.call(this, params, owneryQuery, options, children) || this;
+            _this.name = name;
+            return _this;
+        }
+        return NamedGroupOperation;
+    }(GroupOperation));
+    var QueryOperation = /** @class */ (function (_super) {
+        __extends(QueryOperation, _super);
+        function QueryOperation() {
+            var _this = _super !== null && _super.apply(this, arguments) || this;
+            _this.propop = true;
+            return _this;
+        }
+        /**
+         */
+        QueryOperation.prototype.next = function (item, key, parent, root) {
+            this.childrenNext(item, key, parent, root);
+        };
+        return QueryOperation;
+    }(GroupOperation));
+    var NestedOperation = /** @class */ (function (_super) {
+        __extends(NestedOperation, _super);
+        function NestedOperation(keyPath, params, owneryQuery, options, children) {
+            var _this = _super.call(this, params, owneryQuery, options, children) || this;
+            _this.keyPath = keyPath;
+            _this.propop = true;
+            /**
+             */
+            _this._nextNestedValue = function (value, key, owner, root, leaf) {
+                _this.childrenNext(value, key, owner, root, leaf);
+                return !_this.done;
+            };
+            return _this;
+        }
+        /**
+         */
+        NestedOperation.prototype.next = function (item, key, parent) {
+            walkKeyPathValues(item, this.keyPath, this._nextNestedValue, 0, key, parent);
+        };
+        return NestedOperation;
+    }(GroupOperation));
+    var createTester = function (a, compare) {
+        if (a instanceof Function) {
+            return a;
+        }
+        if (a instanceof RegExp) {
+            return function (b) {
+                var result = typeof b === "string" && a.test(b);
+                a.lastIndex = 0;
+                return result;
+            };
+        }
+        var comparableA = comparable(a);
+        return function (b) { return compare(comparableA, comparable(b)); };
+    };
+    var EqualsOperation = /** @class */ (function (_super) {
+        __extends(EqualsOperation, _super);
+        function EqualsOperation() {
+            var _this = _super !== null && _super.apply(this, arguments) || this;
+            _this.propop = true;
+            return _this;
+        }
+        EqualsOperation.prototype.init = function () {
+            this._test = createTester(this.params, this.options.compare);
+        };
+        EqualsOperation.prototype.next = function (item, key, parent) {
+            if (!Array.isArray(parent) || parent.hasOwnProperty(key)) {
+                if (this._test(item, key, parent)) {
+                    this.done = true;
+                    this.keep = true;
+                }
+            }
+        };
+        return EqualsOperation;
+    }(BaseOperation));
+    var createEqualsOperation = function (params, owneryQuery, options) { return new EqualsOperation(params, owneryQuery, options); };
+    var numericalOperationCreator = function (createNumericalOperation) {
+        return function (params, owneryQuery, options, name) {
+            return createNumericalOperation(params, owneryQuery, options, name);
+        };
+    };
+    var numericalOperation = function (createTester) {
+        return numericalOperationCreator(function (params, owneryQuery, options, name) {
+            var typeofParams = typeof comparable(params);
+            var test = createTester(params);
+            return new EqualsOperation(function (b) {
+                var actualValue = coercePotentiallyNull(b);
+                return (typeof comparable(actualValue) === typeofParams && test(actualValue));
+            }, owneryQuery, options, name);
+        });
+    };
+    var createNamedOperation = function (name, params, parentQuery, options) {
+        var operationCreator = options.operations[name];
+        if (!operationCreator) {
+            throwUnsupportedOperation(name);
+        }
+        return operationCreator(params, parentQuery, options, name);
+    };
+    var throwUnsupportedOperation = function (name) {
+        throw new Error("Unsupported operation: ".concat(name));
+    };
+    var containsOperation = function (query, options) {
+        for (var key in query) {
+            if (options.operations.hasOwnProperty(key) || key.charAt(0) === "$")
+                return true;
+        }
+        return false;
+    };
+    var createNestedOperation = function (keyPath, nestedQuery, parentKey, owneryQuery, options) {
+        if (containsOperation(nestedQuery, options)) {
+            var _a = createQueryOperations(nestedQuery, parentKey, options), selfOperations = _a[0], nestedOperations = _a[1];
+            if (nestedOperations.length) {
+                throw new Error("Property queries must contain only operations, or exact objects.");
+            }
+            return new NestedOperation(keyPath, nestedQuery, owneryQuery, options, selfOperations);
+        }
+        return new NestedOperation(keyPath, nestedQuery, owneryQuery, options, [
+            new EqualsOperation(nestedQuery, owneryQuery, options),
+        ]);
+    };
+    var createQueryOperation = function (query, owneryQuery, _a) {
+        if (owneryQuery === void 0) { owneryQuery = null; }
+        var _b = _a === void 0 ? {} : _a, compare = _b.compare, operations = _b.operations;
+        var options = {
+            compare: compare || equals,
+            operations: Object.assign({}, operations || {}),
+        };
+        var _c = createQueryOperations(query, null, options), selfOperations = _c[0], nestedOperations = _c[1];
+        var ops = [];
+        if (selfOperations.length) {
+            ops.push(new NestedOperation([], query, owneryQuery, options, selfOperations));
+        }
+        ops.push.apply(ops, nestedOperations);
+        if (ops.length === 1) {
+            return ops[0];
+        }
+        return new QueryOperation(query, owneryQuery, options, ops);
+    };
+    var createQueryOperations = function (query, parentKey, options) {
+        var selfOperations = [];
+        var nestedOperations = [];
+        if (!isVanillaObject(query)) {
+            selfOperations.push(new EqualsOperation(query, query, options));
+            return [selfOperations, nestedOperations];
+        }
+        for (var key in query) {
+            if (options.operations.hasOwnProperty(key)) {
+                var op = createNamedOperation(key, query[key], query, options);
+                if (op) {
+                    if (!op.propop && parentKey && !options.operations[parentKey]) {
+                        throw new Error("Malformed query. ".concat(key, " cannot be matched against property."));
+                    }
+                }
+                // probably just a flag for another operation (like $options)
+                if (op != null) {
+                    selfOperations.push(op);
+                }
+            }
+            else if (key.charAt(0) === "$") {
+                throwUnsupportedOperation(key);
+            }
+            else {
+                nestedOperations.push(createNestedOperation(key.split("."), query[key], key, query, options));
+            }
+        }
+        return [selfOperations, nestedOperations];
+    };
+    var createOperationTester = function (operation) {
+        return function (item, key, owner) {
+            operation.reset();
+            operation.next(item, key, owner);
+            return operation.keep;
+        };
+    };
+    var createQueryTester = function (query, options) {
+        if (options === void 0) { options = {}; }
+        return createOperationTester(createQueryOperation(query, null, options));
+    };
+
+    var $Ne = /** @class */ (function (_super) {
+        __extends($Ne, _super);
+        function $Ne() {
+            var _this = _super !== null && _super.apply(this, arguments) || this;
+            _this.propop = true;
+            return _this;
+        }
+        $Ne.prototype.init = function () {
+            this._test = createTester(this.params, this.options.compare);
+        };
+        $Ne.prototype.reset = function () {
+            _super.prototype.reset.call(this);
+            this.keep = true;
+        };
+        $Ne.prototype.next = function (item) {
+            if (this._test(item)) {
+                this.done = true;
+                this.keep = false;
+            }
+        };
+        return $Ne;
+    }(BaseOperation));
+    // https://docs.mongodb.com/manual/reference/operator/query/elemMatch/
+    var $ElemMatch = /** @class */ (function (_super) {
+        __extends($ElemMatch, _super);
+        function $ElemMatch() {
+            var _this = _super !== null && _super.apply(this, arguments) || this;
+            _this.propop = true;
+            return _this;
+        }
+        $ElemMatch.prototype.init = function () {
+            if (!this.params || typeof this.params !== "object") {
+                throw new Error("Malformed query. $elemMatch must by an object.");
+            }
+            this._queryOperation = createQueryOperation(this.params, this.owneryQuery, this.options);
+        };
+        $ElemMatch.prototype.reset = function () {
+            _super.prototype.reset.call(this);
+            this._queryOperation.reset();
+        };
+        $ElemMatch.prototype.next = function (item) {
+            if (isArray(item)) {
+                for (var i = 0, length_1 = item.length; i < length_1; i++) {
+                    // reset query operation since item being tested needs to pass _all_ query
+                    // operations for it to be a success
+                    this._queryOperation.reset();
+                    var child = item[i];
+                    this._queryOperation.next(child, i, item, false);
+                    this.keep = this.keep || this._queryOperation.keep;
+                }
+                this.done = true;
+            }
+            else {
+                this.done = false;
+                this.keep = false;
+            }
+        };
+        return $ElemMatch;
+    }(BaseOperation));
+    var $Not = /** @class */ (function (_super) {
+        __extends($Not, _super);
+        function $Not() {
+            var _this = _super !== null && _super.apply(this, arguments) || this;
+            _this.propop = true;
+            return _this;
+        }
+        $Not.prototype.init = function () {
+            this._queryOperation = createQueryOperation(this.params, this.owneryQuery, this.options);
+        };
+        $Not.prototype.reset = function () {
+            _super.prototype.reset.call(this);
+            this._queryOperation.reset();
+        };
+        $Not.prototype.next = function (item, key, owner, root) {
+            this._queryOperation.next(item, key, owner, root);
+            this.done = this._queryOperation.done;
+            this.keep = !this._queryOperation.keep;
+        };
+        return $Not;
+    }(BaseOperation));
+    var $Size = /** @class */ (function (_super) {
+        __extends($Size, _super);
+        function $Size() {
+            var _this = _super !== null && _super.apply(this, arguments) || this;
+            _this.propop = true;
+            return _this;
+        }
+        $Size.prototype.init = function () { };
+        $Size.prototype.next = function (item) {
+            if (isArray(item) && item.length === this.params) {
+                this.done = true;
+                this.keep = true;
+            }
+            // if (parent && parent.length === this.params) {
+            //   this.done = true;
+            //   this.keep = true;
+            // }
+        };
+        return $Size;
+    }(BaseOperation));
+    var assertGroupNotEmpty = function (values) {
+        if (values.length === 0) {
+            throw new Error("$and/$or/$nor must be a nonempty array");
+        }
+    };
+    var $Or = /** @class */ (function (_super) {
+        __extends($Or, _super);
+        function $Or() {
+            var _this = _super !== null && _super.apply(this, arguments) || this;
+            _this.propop = false;
+            return _this;
+        }
+        $Or.prototype.init = function () {
+            var _this = this;
+            assertGroupNotEmpty(this.params);
+            this._ops = this.params.map(function (op) {
+                return createQueryOperation(op, null, _this.options);
+            });
+        };
+        $Or.prototype.reset = function () {
+            this.done = false;
+            this.keep = false;
+            for (var i = 0, length_2 = this._ops.length; i < length_2; i++) {
+                this._ops[i].reset();
+            }
+        };
+        $Or.prototype.next = function (item, key, owner) {
+            var done = false;
+            var success = false;
+            for (var i = 0, length_3 = this._ops.length; i < length_3; i++) {
+                var op = this._ops[i];
+                op.next(item, key, owner);
+                if (op.keep) {
+                    done = true;
+                    success = op.keep;
+                    break;
+                }
+            }
+            this.keep = success;
+            this.done = done;
+        };
+        return $Or;
+    }(BaseOperation));
+    var $Nor = /** @class */ (function (_super) {
+        __extends($Nor, _super);
+        function $Nor() {
+            var _this = _super !== null && _super.apply(this, arguments) || this;
+            _this.propop = false;
+            return _this;
+        }
+        $Nor.prototype.next = function (item, key, owner) {
+            _super.prototype.next.call(this, item, key, owner);
+            this.keep = !this.keep;
+        };
+        return $Nor;
+    }($Or));
+    var $In = /** @class */ (function (_super) {
+        __extends($In, _super);
+        function $In() {
+            var _this = _super !== null && _super.apply(this, arguments) || this;
+            _this.propop = true;
+            return _this;
+        }
+        $In.prototype.init = function () {
+            var _this = this;
+            var params = Array.isArray(this.params) ? this.params : [this.params];
+            this._testers = params.map(function (value) {
+                if (containsOperation(value, _this.options)) {
+                    throw new Error("cannot nest $ under ".concat(_this.name.toLowerCase()));
+                }
+                return createTester(value, _this.options.compare);
+            });
+        };
+        $In.prototype.next = function (item, key, owner) {
+            var done = false;
+            var success = false;
+            for (var i = 0, length_4 = this._testers.length; i < length_4; i++) {
+                var test = this._testers[i];
+                if (test(item)) {
+                    done = true;
+                    success = true;
+                    break;
+                }
+            }
+            this.keep = success;
+            this.done = done;
+        };
+        return $In;
+    }(BaseOperation));
+    var $Nin = /** @class */ (function (_super) {
+        __extends($Nin, _super);
+        function $Nin(params, ownerQuery, options, name) {
+            var _this = _super.call(this, params, ownerQuery, options, name) || this;
+            _this.propop = true;
+            _this._in = new $In(params, ownerQuery, options, name);
+            return _this;
+        }
+        $Nin.prototype.next = function (item, key, owner, root) {
+            this._in.next(item, key, owner);
+            if (isArray(owner) && !root) {
+                if (this._in.keep) {
+                    this.keep = false;
+                    this.done = true;
+                }
+                else if (key == owner.length - 1) {
+                    this.keep = true;
+                    this.done = true;
+                }
+            }
+            else {
+                this.keep = !this._in.keep;
+                this.done = true;
+            }
+        };
+        $Nin.prototype.reset = function () {
+            _super.prototype.reset.call(this);
+            this._in.reset();
+        };
+        return $Nin;
+    }(BaseOperation));
+    var $Exists = /** @class */ (function (_super) {
+        __extends($Exists, _super);
+        function $Exists() {
+            var _this = _super !== null && _super.apply(this, arguments) || this;
+            _this.propop = true;
+            return _this;
+        }
+        $Exists.prototype.next = function (item, key, owner, root, leaf) {
+            if (!leaf) {
+                this.done = true;
+                this.keep = !this.params;
+            }
+            else if (owner.hasOwnProperty(key) === this.params) {
+                this.done = true;
+                this.keep = true;
+            }
+        };
+        return $Exists;
+    }(BaseOperation));
+    var $And = /** @class */ (function (_super) {
+        __extends($And, _super);
+        function $And(params, owneryQuery, options, name) {
+            var _this = _super.call(this, params, owneryQuery, options, params.map(function (query) { return createQueryOperation(query, owneryQuery, options); }), name) || this;
+            _this.propop = false;
+            assertGroupNotEmpty(params);
+            return _this;
+        }
+        $And.prototype.next = function (item, key, owner, root) {
+            this.childrenNext(item, key, owner, root);
+        };
+        return $And;
+    }(NamedGroupOperation));
+    var $All = /** @class */ (function (_super) {
+        __extends($All, _super);
+        function $All(params, owneryQuery, options, name) {
+            var _this = _super.call(this, params, owneryQuery, options, params.map(function (query) { return createQueryOperation(query, owneryQuery, options); }), name) || this;
+            _this.propop = true;
+            return _this;
+        }
+        $All.prototype.next = function (item, key, owner, root) {
+            this.childrenNext(item, key, owner, root);
+        };
+        return $All;
+    }(NamedGroupOperation));
+    var $eq = function (params, owneryQuery, options) {
+        return new EqualsOperation(params, owneryQuery, options);
+    };
+    var $ne = function (params, owneryQuery, options, name) { return new $Ne(params, owneryQuery, options, name); };
+    var $or = function (params, owneryQuery, options, name) { return new $Or(params, owneryQuery, options, name); };
+    var $nor = function (params, owneryQuery, options, name) { return new $Nor(params, owneryQuery, options, name); };
+    var $elemMatch = function (params, owneryQuery, options, name) { return new $ElemMatch(params, owneryQuery, options, name); };
+    var $nin = function (params, owneryQuery, options, name) { return new $Nin(params, owneryQuery, options, name); };
+    var $in = function (params, owneryQuery, options, name) {
+        return new $In(params, owneryQuery, options, name);
+    };
+    var $lt = numericalOperation(function (params) { return function (b) {
+        return b != null && b < params;
+    }; });
+    var $lte = numericalOperation(function (params) { return function (b) {
+        return b === params || b <= params;
+    }; });
+    var $gt = numericalOperation(function (params) { return function (b) {
+        return b != null && b > params;
+    }; });
+    var $gte = numericalOperation(function (params) { return function (b) {
+        return b === params || b >= params;
+    }; });
+    var $mod = function (_a, owneryQuery, options) {
+        var mod = _a[0], equalsValue = _a[1];
+        return new EqualsOperation(function (b) { return comparable(b) % mod === equalsValue; }, owneryQuery, options);
+    };
+    var $exists = function (params, owneryQuery, options, name) { return new $Exists(params, owneryQuery, options, name); };
+    var $regex = function (pattern, owneryQuery, options) {
+        return new EqualsOperation(new RegExp(pattern, owneryQuery.$options), owneryQuery, options);
+    };
+    var $not = function (params, owneryQuery, options, name) { return new $Not(params, owneryQuery, options, name); };
+    var typeAliases = {
+        number: function (v) { return typeof v === "number"; },
+        string: function (v) { return typeof v === "string"; },
+        bool: function (v) { return typeof v === "boolean"; },
+        array: function (v) { return Array.isArray(v); },
+        null: function (v) { return v === null; },
+        timestamp: function (v) { return v instanceof Date; },
+    };
+    var $type = function (clazz, owneryQuery, options) {
+        return new EqualsOperation(function (b) {
+            if (typeof clazz === "string") {
+                if (!typeAliases[clazz]) {
+                    throw new Error("Type alias does not exist");
+                }
+                return typeAliases[clazz](b);
+            }
+            return b != null ? b instanceof clazz || b.constructor === clazz : false;
+        }, owneryQuery, options);
+    };
+    var $and = function (params, ownerQuery, options, name) { return new $And(params, ownerQuery, options, name); };
+    var $all = function (params, ownerQuery, options, name) { return new $All(params, ownerQuery, options, name); };
+    var $size = function (params, ownerQuery, options) { return new $Size(params, ownerQuery, options, "$size"); };
+    var $options = function () { return null; };
+    var $where = function (params, ownerQuery, options) {
+        var test;
+        if (isFunction(params)) {
+            test = params;
+        }
+        else if (!process.env.CSP_ENABLED) {
+            test = new Function("obj", "return " + params);
+        }
+        else {
+            throw new Error("In CSP mode, sift does not support strings in \"$where\" condition");
+        }
+        return new EqualsOperation(function (b) { return test.bind(b)(b); }, ownerQuery, options);
+    };
+
+    var defaultOperations = /*#__PURE__*/Object.freeze({
+        __proto__: null,
+        $Size: $Size,
+        $all: $all,
+        $and: $and,
+        $elemMatch: $elemMatch,
+        $eq: $eq,
+        $exists: $exists,
+        $gt: $gt,
+        $gte: $gte,
+        $in: $in,
+        $lt: $lt,
+        $lte: $lte,
+        $mod: $mod,
+        $ne: $ne,
+        $nin: $nin,
+        $nor: $nor,
+        $not: $not,
+        $options: $options,
+        $or: $or,
+        $regex: $regex,
+        $size: $size,
+        $type: $type,
+        $where: $where
+    });
+
+    var createDefaultQueryOperation = function (query, ownerQuery, _a) {
+        var _b = _a === void 0 ? {} : _a, compare = _b.compare, operations = _b.operations;
+        return createQueryOperation(query, ownerQuery, {
+            compare: compare,
+            operations: Object.assign({}, defaultOperations, operations || {}),
+        });
+    };
+    var createDefaultQueryTester = function (query, options) {
+        if (options === void 0) { options = {}; }
+        var op = createDefaultQueryOperation(query, null, options);
+        return createOperationTester(op);
+    };
+
+    exports.$Size = $Size;
+    exports.$all = $all;
+    exports.$and = $and;
+    exports.$elemMatch = $elemMatch;
+    exports.$eq = $eq;
+    exports.$exists = $exists;
+    exports.$gt = $gt;
+    exports.$gte = $gte;
+    exports.$in = $in;
+    exports.$lt = $lt;
+    exports.$lte = $lte;
+    exports.$mod = $mod;
+    exports.$ne = $ne;
+    exports.$nin = $nin;
+    exports.$nor = $nor;
+    exports.$not = $not;
+    exports.$options = $options;
+    exports.$or = $or;
+    exports.$regex = $regex;
+    exports.$size = $size;
+    exports.$type = $type;
+    exports.$where = $where;
+    exports.EqualsOperation = EqualsOperation;
+    exports.createDefaultQueryOperation = createDefaultQueryOperation;
+    exports.createEqualsOperation = createEqualsOperation;
+    exports.createOperationTester = createOperationTester;
+    exports.createQueryOperation = createQueryOperation;
+    exports.createQueryTester = createQueryTester;
+    exports.default = createDefaultQueryTester;
+
+    Object.defineProperty(exports, '__esModule', { value: true });
+
+}));
+//# sourceMappingURL=index.js.map
diff --git a/backend/node_modules/sift/lib/index.js.map b/backend/node_modules/sift/lib/index.js.map
new file mode 100644
index 0000000..ca6a98b
--- /dev/null
+++ b/backend/node_modules/sift/lib/index.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sources":["../node_modules/tslib/tslib.es6.js","../src/utils.ts","../src/core.ts","../src/operations.ts","../src/index.ts"],"sourcesContent":["/******************************************************************************\r\nCopyright (c) Microsoft Corporation.\r\n\r\nPermission to use, copy, modify, and/or distribute this software for any\r\npurpose with or without fee is hereby granted.\r\n\r\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\r\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\r\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n/* global Reflect, Promise, SuppressedError, Symbol */\r\n\r\nvar extendStatics = function(d, b) {\r\n    extendStatics = Object.setPrototypeOf ||\r\n        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n        function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\r\n    return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n    if (typeof b !== \"function\" && b !== null)\r\n        throw new TypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\r\n    extendStatics(d, b);\r\n    function __() { this.constructor = d; }\r\n    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\r\n}\r\n\r\nexport var __assign = function() {\r\n    __assign = Object.assign || function __assign(t) {\r\n        for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n            s = arguments[i];\r\n            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\r\n        }\r\n        return t;\r\n    }\r\n    return __assign.apply(this, arguments);\r\n}\r\n\r\nexport function __rest(s, e) {\r\n    var t = {};\r\n    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\r\n        t[p] = s[p];\r\n    if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\r\n        for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\r\n            if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\r\n                t[p[i]] = s[p[i]];\r\n        }\r\n    return t;\r\n}\r\n\r\nexport function __decorate(decorators, target, key, desc) {\r\n    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\r\n    if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\r\n    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\r\n    return c > 3 && r && Object.defineProperty(target, key, r), r;\r\n}\r\n\r\nexport function __param(paramIndex, decorator) {\r\n    return function (target, key) { decorator(target, key, paramIndex); }\r\n}\r\n\r\nexport function __esDecorate(ctor, descriptorIn, decorators, contextIn, initializers, extraInitializers) {\r\n    function accept(f) { if (f !== void 0 && typeof f !== \"function\") throw new TypeError(\"Function expected\"); return f; }\r\n    var kind = contextIn.kind, key = kind === \"getter\" ? \"get\" : kind === \"setter\" ? \"set\" : \"value\";\r\n    var target = !descriptorIn && ctor ? contextIn[\"static\"] ? ctor : ctor.prototype : null;\r\n    var descriptor = descriptorIn || (target ? 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\ No newline at end of file
diff --git a/backend/node_modules/sift/lib/operations.d.ts b/backend/node_modules/sift/lib/operations.d.ts
new file mode 100644
index 0000000..7e49f74
--- /dev/null
+++ b/backend/node_modules/sift/lib/operations.d.ts
@@ -0,0 +1,88 @@
+import { BaseOperation, EqualsOperation, Options, Operation, Query, NamedGroupOperation } from "./core";
+import { Key } from "./utils";
+declare class $Ne extends BaseOperation<any> {
+    readonly propop = true;
+    private _test;
+    init(): void;
+    reset(): void;
+    next(item: any): void;
+}
+declare class $ElemMatch extends BaseOperation<Query<any>> {
+    readonly propop = true;
+    private _queryOperation;
+    init(): void;
+    reset(): void;
+    next(item: any): void;
+}
+declare class $Not extends BaseOperation<Query<any>> {
+    readonly propop = true;
+    private _queryOperation;
+    init(): void;
+    reset(): void;
+    next(item: any, key: Key, owner: any, root: boolean): void;
+}
+export declare class $Size extends BaseOperation<any> {
+    readonly propop = true;
+    init(): void;
+    next(item: any): void;
+}
+declare class $Or extends BaseOperation<any> {
+    readonly propop = false;
+    private _ops;
+    init(): void;
+    reset(): void;
+    next(item: any, key: Key, owner: any): void;
+}
+declare class $Nor extends $Or {
+    readonly propop = false;
+    next(item: any, key: Key, owner: any): void;
+}
+declare class $In extends BaseOperation<any> {
+    readonly propop = true;
+    private _testers;
+    init(): void;
+    next(item: any, key: Key, owner: any): void;
+}
+declare class $Nin extends BaseOperation<any> {
+    readonly propop = true;
+    private _in;
+    constructor(params: any, ownerQuery: any, options: Options, name: string);
+    next(item: any, key: Key, owner: any, root: boolean): void;
+    reset(): void;
+}
+declare class $Exists extends BaseOperation<boolean> {
+    readonly propop = true;
+    next(item: any, key: Key, owner: any, root: boolean, leaf?: boolean): void;
+}
+declare class $And extends NamedGroupOperation {
+    readonly propop = false;
+    constructor(params: Query<any>[], owneryQuery: Query<any>, options: Options, name: string);
+    next(item: any, key: Key, owner: any, root: boolean): void;
+}
+declare class $All extends NamedGroupOperation {
+    readonly propop = true;
+    constructor(params: Query<any>[], owneryQuery: Query<any>, options: Options, name: string);
+    next(item: any, key: Key, owner: any, root: boolean): void;
+}
+export declare const $eq: (params: any, owneryQuery: Query<any>, options: Options) => EqualsOperation<any>;
+export declare const $ne: (params: any, owneryQuery: Query<any>, options: Options, name: string) => $Ne;
+export declare const $or: (params: Query<any>[], owneryQuery: Query<any>, options: Options, name: string) => $Or;
+export declare const $nor: (params: Query<any>[], owneryQuery: Query<any>, options: Options, name: string) => $Nor;
+export declare const $elemMatch: (params: any, owneryQuery: Query<any>, options: Options, name: string) => $ElemMatch;
+export declare const $nin: (params: any, owneryQuery: Query<any>, options: Options, name: string) => $Nin;
+export declare const $in: (params: any, owneryQuery: Query<any>, options: Options, name: string) => $In;
+export declare const $lt: (params: any, owneryQuery: any, options: Options, name: string) => Operation<any>;
+export declare const $lte: (params: any, owneryQuery: any, options: Options, name: string) => Operation<any>;
+export declare const $gt: (params: any, owneryQuery: any, options: Options, name: string) => Operation<any>;
+export declare const $gte: (params: any, owneryQuery: any, options: Options, name: string) => Operation<any>;
+export declare const $mod: ([mod, equalsValue]: number[], owneryQuery: Query<any>, options: Options) => EqualsOperation<(b: any) => boolean>;
+export declare const $exists: (params: boolean, owneryQuery: Query<any>, options: Options, name: string) => $Exists;
+export declare const $regex: (pattern: string, owneryQuery: Query<any>, options: Options) => EqualsOperation<RegExp>;
+export declare const $not: (params: any, owneryQuery: Query<any>, options: Options, name: string) => $Not;
+export declare const $type: (clazz: Function | string, owneryQuery: Query<any>, options: Options) => EqualsOperation<(b: any) => any>;
+export declare const $and: (params: Query<any>[], ownerQuery: Query<any>, options: Options, name: string) => $And;
+export declare const $all: (params: Query<any>[], ownerQuery: Query<any>, options: Options, name: string) => $All;
+export declare const $size: (params: number, ownerQuery: Query<any>, options: Options) => $Size;
+export declare const $options: () => any;
+export declare const $where: (params: string | Function, ownerQuery: Query<any>, options: Options) => EqualsOperation<(b: any) => any>;
+export {};
diff --git a/backend/node_modules/sift/lib/utils.d.ts b/backend/node_modules/sift/lib/utils.d.ts
new file mode 100644
index 0000000..4de9e74
--- /dev/null
+++ b/backend/node_modules/sift/lib/utils.d.ts
@@ -0,0 +1,11 @@
+export type Key = string | number;
+export type Comparator = (a: any, b: any) => boolean;
+export declare const typeChecker: <TType>(type: any) => (value: any) => value is TType;
+export declare const comparable: (value: any) => any;
+export declare const coercePotentiallyNull: (value: any) => any;
+export declare const isArray: (value: any) => value is any[];
+export declare const isObject: (value: any) => value is Object;
+export declare const isFunction: (value: any) => value is Function;
+export declare const isProperty: (item: any, key: any) => boolean;
+export declare const isVanillaObject: (value: any) => boolean;
+export declare const equals: (a: any, b: any) => boolean;
diff --git a/backend/node_modules/sift/package.json b/backend/node_modules/sift/package.json
new file mode 100644
index 0000000..0784287
--- /dev/null
+++ b/backend/node_modules/sift/package.json
@@ -0,0 +1,61 @@
+{
+  "name": "sift",
+  "description": "MongoDB query filtering in JavaScript",
+  "version": "17.1.3",
+  "repository": "crcn/sift.js",
+  "sideEffects": false,
+  "author": {
+    "name": "Craig Condon",
+    "email": "craig.j.condon@gmail.com"
+  },
+  "license": "MIT",
+  "engines": {},
+  "typings": "./index.d.ts",
+  "husky": {
+    "hooks": {
+      "pre-commit": "pretty-quick --staged"
+    }
+  },
+  "devDependencies": {
+    "@rollup/plugin-replace": "^2.3.2",
+    "@rollup/plugin-typescript": "8.2.1",
+    "@types/node": "^13.7.0",
+    "bson": "^6.6.0",
+    "eval": "^0.1.8",
+    "husky": "^9.0.11",
+    "mocha": "10.4.0",
+    "mongodb": "^3.6.6",
+    "prettier": "3.2.5",
+    "pretty-quick": "^4.0.0",
+    "rimraf": "^5.0.5",
+    "rollup": "^4.14.2",
+    "@rollup/plugin-terser": "^0.4.4",
+    "tslib": "2.6.2",
+    "typescript": "5.4.5"
+  },
+  "main": "./index.js",
+  "module": "./es5m/index.js",
+  "es2015": "./es/index.js",
+  "scripts": {
+    "clean": "rimraf lib es5m es",
+    "prebuild": "npm run clean && npm run build:types",
+    "build": "rollup -c",
+    "build:types": "tsc -p tsconfig.json --emitDeclarationOnly --outDir lib",
+    "test": "npm run test:spec && npm run test:types",
+    "test:spec": "mocha ./test -R spec",
+    "test:types": "cd test && tsc types.ts --noEmit",
+    "prepublishOnly": "npm run build && npm run test"
+  },
+  "files": [
+    "es",
+    "es5m",
+    "lib",
+    "src",
+    "*.d.ts",
+    "*.js.map",
+    "index.js",
+    "sift.csp.min.js",
+    "sift.min.js",
+    "MIT-LICENSE.txt"
+  ]
+}
diff --git a/backend/node_modules/sift/sift.csp.min.js b/backend/node_modules/sift/sift.csp.min.js
new file mode 100644
index 0000000..673941c
--- /dev/null
+++ b/backend/node_modules/sift/sift.csp.min.js
@@ -0,0 +1,778 @@
+(function (global, factory) {
+    typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+    typeof define === 'function' && define.amd ? define(['exports'], factory) :
+    (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.sift = {}));
+})(this, (function (exports) { 'use strict';
+
+    /******************************************************************************
+    Copyright (c) Microsoft Corporation.
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose with or without fee is hereby granted.
+
+    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+    REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+    AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+    INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+    LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+    OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+    PERFORMANCE OF THIS SOFTWARE.
+    ***************************************************************************** */
+    /* global Reflect, Promise, SuppressedError, Symbol */
+
+    var extendStatics = function(d, b) {
+        extendStatics = Object.setPrototypeOf ||
+            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
+        return extendStatics(d, b);
+    };
+
+    function __extends(d, b) {
+        if (typeof b !== "function" && b !== null)
+            throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
+        extendStatics(d, b);
+        function __() { this.constructor = d; }
+        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+    }
+
+    typeof SuppressedError === "function" ? SuppressedError : function (error, suppressed, message) {
+        var e = new Error(message);
+        return e.name = "SuppressedError", e.error = error, e.suppressed = suppressed, e;
+    };
+
+    var typeChecker = function (type) {
+        var typeString = "[object " + type + "]";
+        return function (value) {
+            return getClassName(value) === typeString;
+        };
+    };
+    var getClassName = function (value) { return Object.prototype.toString.call(value); };
+    var comparable = function (value) {
+        if (value instanceof Date) {
+            return value.getTime();
+        }
+        else if (isArray(value)) {
+            return value.map(comparable);
+        }
+        else if (value && typeof value.toJSON === "function") {
+            return value.toJSON();
+        }
+        return value;
+    };
+    var coercePotentiallyNull = function (value) {
+        return value == null ? null : value;
+    };
+    var isArray = typeChecker("Array");
+    var isObject = typeChecker("Object");
+    var isFunction = typeChecker("Function");
+    var isProperty = function (item, key) {
+        return item.hasOwnProperty(key) && !isFunction(item[key]);
+    };
+    var isVanillaObject = function (value) {
+        return (value &&
+            (value.constructor === Object ||
+                value.constructor === Array ||
+                value.constructor.toString() === "function Object() { [native code] }" ||
+                value.constructor.toString() === "function Array() { [native code] }") &&
+            !value.toJSON);
+    };
+    var equals = function (a, b) {
+        if (a == null && a == b) {
+            return true;
+        }
+        if (a === b) {
+            return true;
+        }
+        if (Object.prototype.toString.call(a) !== Object.prototype.toString.call(b)) {
+            return false;
+        }
+        if (isArray(a)) {
+            if (a.length !== b.length) {
+                return false;
+            }
+            for (var i = 0, length_1 = a.length; i < length_1; i++) {
+                if (!equals(a[i], b[i]))
+                    return false;
+            }
+            return true;
+        }
+        else if (isObject(a)) {
+            if (Object.keys(a).length !== Object.keys(b).length) {
+                return false;
+            }
+            for (var key in a) {
+                if (!equals(a[key], b[key]))
+                    return false;
+            }
+            return true;
+        }
+        return false;
+    };
+
+    /**
+     * Walks through each value given the context - used for nested operations. E.g:
+     * { "person.address": { $eq: "blarg" }}
+     */
+    var walkKeyPathValues = function (item, keyPath, next, depth, key, owner) {
+        var currentKey = keyPath[depth];
+        // if array, then try matching. Might fall through for cases like:
+        // { $eq: [1, 2, 3] }, [ 1, 2, 3 ].
+        if (isArray(item) &&
+            isNaN(Number(currentKey)) &&
+            !isProperty(item, currentKey)) {
+            for (var i = 0, length_1 = item.length; i < length_1; i++) {
+                // if FALSE is returned, then terminate walker. For operations, this simply
+                // means that the search critera was met.
+                if (!walkKeyPathValues(item[i], keyPath, next, depth, i, item)) {
+                    return false;
+                }
+            }
+        }
+        if (depth === keyPath.length || item == null) {
+            return next(item, key, owner, depth === 0, depth === keyPath.length);
+        }
+        return walkKeyPathValues(item[currentKey], keyPath, next, depth + 1, currentKey, item);
+    };
+    var BaseOperation = /** @class */ (function () {
+        function BaseOperation(params, owneryQuery, options, name) {
+            this.params = params;
+            this.owneryQuery = owneryQuery;
+            this.options = options;
+            this.name = name;
+            this.init();
+        }
+        BaseOperation.prototype.init = function () { };
+        BaseOperation.prototype.reset = function () {
+            this.done = false;
+            this.keep = false;
+        };
+        return BaseOperation;
+    }());
+    var GroupOperation = /** @class */ (function (_super) {
+        __extends(GroupOperation, _super);
+        function GroupOperation(params, owneryQuery, options, children) {
+            var _this = _super.call(this, params, owneryQuery, options) || this;
+            _this.children = children;
+            return _this;
+        }
+        /**
+         */
+        GroupOperation.prototype.reset = function () {
+            this.keep = false;
+            this.done = false;
+            for (var i = 0, length_2 = this.children.length; i < length_2; i++) {
+                this.children[i].reset();
+            }
+        };
+        /**
+         */
+        GroupOperation.prototype.childrenNext = function (item, key, owner, root, leaf) {
+            var done = true;
+            var keep = true;
+            for (var i = 0, length_3 = this.children.length; i < length_3; i++) {
+                var childOperation = this.children[i];
+                if (!childOperation.done) {
+                    childOperation.next(item, key, owner, root, leaf);
+                }
+                if (!childOperation.keep) {
+                    keep = false;
+                }
+                if (childOperation.done) {
+                    if (!childOperation.keep) {
+                        break;
+                    }
+                }
+                else {
+                    done = false;
+                }
+            }
+            this.done = done;
+            this.keep = keep;
+        };
+        return GroupOperation;
+    }(BaseOperation));
+    var NamedGroupOperation = /** @class */ (function (_super) {
+        __extends(NamedGroupOperation, _super);
+        function NamedGroupOperation(params, owneryQuery, options, children, name) {
+            var _this = _super.call(this, params, owneryQuery, options, children) || this;
+            _this.name = name;
+            return _this;
+        }
+        return NamedGroupOperation;
+    }(GroupOperation));
+    var QueryOperation = /** @class */ (function (_super) {
+        __extends(QueryOperation, _super);
+        function QueryOperation() {
+            var _this = _super !== null && _super.apply(this, arguments) || this;
+            _this.propop = true;
+            return _this;
+        }
+        /**
+         */
+        QueryOperation.prototype.next = function (item, key, parent, root) {
+            this.childrenNext(item, key, parent, root);
+        };
+        return QueryOperation;
+    }(GroupOperation));
+    var NestedOperation = /** @class */ (function (_super) {
+        __extends(NestedOperation, _super);
+        function NestedOperation(keyPath, params, owneryQuery, options, children) {
+            var _this = _super.call(this, params, owneryQuery, options, children) || this;
+            _this.keyPath = keyPath;
+            _this.propop = true;
+            /**
+             */
+            _this._nextNestedValue = function (value, key, owner, root, leaf) {
+                _this.childrenNext(value, key, owner, root, leaf);
+                return !_this.done;
+            };
+            return _this;
+        }
+        /**
+         */
+        NestedOperation.prototype.next = function (item, key, parent) {
+            walkKeyPathValues(item, this.keyPath, this._nextNestedValue, 0, key, parent);
+        };
+        return NestedOperation;
+    }(GroupOperation));
+    var createTester = function (a, compare) {
+        if (a instanceof Function) {
+            return a;
+        }
+        if (a instanceof RegExp) {
+            return function (b) {
+                var result = typeof b === "string" && a.test(b);
+                a.lastIndex = 0;
+                return result;
+            };
+        }
+        var comparableA = comparable(a);
+        return function (b) { return compare(comparableA, comparable(b)); };
+    };
+    var EqualsOperation = /** @class */ (function (_super) {
+        __extends(EqualsOperation, _super);
+        function EqualsOperation() {
+            var _this = _super !== null && _super.apply(this, arguments) || this;
+            _this.propop = true;
+            return _this;
+        }
+        EqualsOperation.prototype.init = function () {
+            this._test = createTester(this.params, this.options.compare);
+        };
+        EqualsOperation.prototype.next = function (item, key, parent) {
+            if (!Array.isArray(parent) || parent.hasOwnProperty(key)) {
+                if (this._test(item, key, parent)) {
+                    this.done = true;
+                    this.keep = true;
+                }
+            }
+        };
+        return EqualsOperation;
+    }(BaseOperation));
+    var createEqualsOperation = function (params, owneryQuery, options) { return new EqualsOperation(params, owneryQuery, options); };
+    var numericalOperationCreator = function (createNumericalOperation) {
+        return function (params, owneryQuery, options, name) {
+            return createNumericalOperation(params, owneryQuery, options, name);
+        };
+    };
+    var numericalOperation = function (createTester) {
+        return numericalOperationCreator(function (params, owneryQuery, options, name) {
+            var typeofParams = typeof comparable(params);
+            var test = createTester(params);
+            return new EqualsOperation(function (b) {
+                var actualValue = coercePotentiallyNull(b);
+                return (typeof comparable(actualValue) === typeofParams && test(actualValue));
+            }, owneryQuery, options, name);
+        });
+    };
+    var createNamedOperation = function (name, params, parentQuery, options) {
+        var operationCreator = options.operations[name];
+        if (!operationCreator) {
+            throwUnsupportedOperation(name);
+        }
+        return operationCreator(params, parentQuery, options, name);
+    };
+    var throwUnsupportedOperation = function (name) {
+        throw new Error("Unsupported operation: ".concat(name));
+    };
+    var containsOperation = function (query, options) {
+        for (var key in query) {
+            if (options.operations.hasOwnProperty(key) || key.charAt(0) === "$")
+                return true;
+        }
+        return false;
+    };
+    var createNestedOperation = function (keyPath, nestedQuery, parentKey, owneryQuery, options) {
+        if (containsOperation(nestedQuery, options)) {
+            var _a = createQueryOperations(nestedQuery, parentKey, options), selfOperations = _a[0], nestedOperations = _a[1];
+            if (nestedOperations.length) {
+                throw new Error("Property queries must contain only operations, or exact objects.");
+            }
+            return new NestedOperation(keyPath, nestedQuery, owneryQuery, options, selfOperations);
+        }
+        return new NestedOperation(keyPath, nestedQuery, owneryQuery, options, [
+            new EqualsOperation(nestedQuery, owneryQuery, options),
+        ]);
+    };
+    var createQueryOperation = function (query, owneryQuery, _a) {
+        if (owneryQuery === void 0) { owneryQuery = null; }
+        var _b = _a === void 0 ? {} : _a, compare = _b.compare, operations = _b.operations;
+        var options = {
+            compare: compare || equals,
+            operations: Object.assign({}, operations || {}),
+        };
+        var _c = createQueryOperations(query, null, options), selfOperations = _c[0], nestedOperations = _c[1];
+        var ops = [];
+        if (selfOperations.length) {
+            ops.push(new NestedOperation([], query, owneryQuery, options, selfOperations));
+        }
+        ops.push.apply(ops, nestedOperations);
+        if (ops.length === 1) {
+            return ops[0];
+        }
+        return new QueryOperation(query, owneryQuery, options, ops);
+    };
+    var createQueryOperations = function (query, parentKey, options) {
+        var selfOperations = [];
+        var nestedOperations = [];
+        if (!isVanillaObject(query)) {
+            selfOperations.push(new EqualsOperation(query, query, options));
+            return [selfOperations, nestedOperations];
+        }
+        for (var key in query) {
+            if (options.operations.hasOwnProperty(key)) {
+                var op = createNamedOperation(key, query[key], query, options);
+                if (op) {
+                    if (!op.propop && parentKey && !options.operations[parentKey]) {
+                        throw new Error("Malformed query. ".concat(key, " cannot be matched against property."));
+                    }
+                }
+                // probably just a flag for another operation (like $options)
+                if (op != null) {
+                    selfOperations.push(op);
+                }
+            }
+            else if (key.charAt(0) === "$") {
+                throwUnsupportedOperation(key);
+            }
+            else {
+                nestedOperations.push(createNestedOperation(key.split("."), query[key], key, query, options));
+            }
+        }
+        return [selfOperations, nestedOperations];
+    };
+    var createOperationTester = function (operation) {
+        return function (item, key, owner) {
+            operation.reset();
+            operation.next(item, key, owner);
+            return operation.keep;
+        };
+    };
+    var createQueryTester = function (query, options) {
+        if (options === void 0) { options = {}; }
+        return createOperationTester(createQueryOperation(query, null, options));
+    };
+
+    var $Ne = /** @class */ (function (_super) {
+        __extends($Ne, _super);
+        function $Ne() {
+            var _this = _super !== null && _super.apply(this, arguments) || this;
+            _this.propop = true;
+            return _this;
+        }
+        $Ne.prototype.init = function () {
+            this._test = createTester(this.params, this.options.compare);
+        };
+        $Ne.prototype.reset = function () {
+            _super.prototype.reset.call(this);
+            this.keep = true;
+        };
+        $Ne.prototype.next = function (item) {
+            if (this._test(item)) {
+                this.done = true;
+                this.keep = false;
+            }
+        };
+        return $Ne;
+    }(BaseOperation));
+    // https://docs.mongodb.com/manual/reference/operator/query/elemMatch/
+    var $ElemMatch = /** @class */ (function (_super) {
+        __extends($ElemMatch, _super);
+        function $ElemMatch() {
+            var _this = _super !== null && _super.apply(this, arguments) || this;
+            _this.propop = true;
+            return _this;
+        }
+        $ElemMatch.prototype.init = function () {
+            if (!this.params || typeof this.params !== "object") {
+                throw new Error("Malformed query. $elemMatch must by an object.");
+            }
+            this._queryOperation = createQueryOperation(this.params, this.owneryQuery, this.options);
+        };
+        $ElemMatch.prototype.reset = function () {
+            _super.prototype.reset.call(this);
+            this._queryOperation.reset();
+        };
+        $ElemMatch.prototype.next = function (item) {
+            if (isArray(item)) {
+                for (var i = 0, length_1 = item.length; i < length_1; i++) {
+                    // reset query operation since item being tested needs to pass _all_ query
+                    // operations for it to be a success
+                    this._queryOperation.reset();
+                    var child = item[i];
+                    this._queryOperation.next(child, i, item, false);
+                    this.keep = this.keep || this._queryOperation.keep;
+                }
+                this.done = true;
+            }
+            else {
+                this.done = false;
+                this.keep = false;
+            }
+        };
+        return $ElemMatch;
+    }(BaseOperation));
+    var $Not = /** @class */ (function (_super) {
+        __extends($Not, _super);
+        function $Not() {
+            var _this = _super !== null && _super.apply(this, arguments) || this;
+            _this.propop = true;
+            return _this;
+        }
+        $Not.prototype.init = function () {
+            this._queryOperation = createQueryOperation(this.params, this.owneryQuery, this.options);
+        };
+        $Not.prototype.reset = function () {
+            _super.prototype.reset.call(this);
+            this._queryOperation.reset();
+        };
+        $Not.prototype.next = function (item, key, owner, root) {
+            this._queryOperation.next(item, key, owner, root);
+            this.done = this._queryOperation.done;
+            this.keep = !this._queryOperation.keep;
+        };
+        return $Not;
+    }(BaseOperation));
+    var $Size = /** @class */ (function (_super) {
+        __extends($Size, _super);
+        function $Size() {
+            var _this = _super !== null && _super.apply(this, arguments) || this;
+            _this.propop = true;
+            return _this;
+        }
+        $Size.prototype.init = function () { };
+        $Size.prototype.next = function (item) {
+            if (isArray(item) && item.length === this.params) {
+                this.done = true;
+                this.keep = true;
+            }
+            // if (parent && parent.length === this.params) {
+            //   this.done = true;
+            //   this.keep = true;
+            // }
+        };
+        return $Size;
+    }(BaseOperation));
+    var assertGroupNotEmpty = function (values) {
+        if (values.length === 0) {
+            throw new Error("$and/$or/$nor must be a nonempty array");
+        }
+    };
+    var $Or = /** @class */ (function (_super) {
+        __extends($Or, _super);
+        function $Or() {
+            var _this = _super !== null && _super.apply(this, arguments) || this;
+            _this.propop = false;
+            return _this;
+        }
+        $Or.prototype.init = function () {
+            var _this = this;
+            assertGroupNotEmpty(this.params);
+            this._ops = this.params.map(function (op) {
+                return createQueryOperation(op, null, _this.options);
+            });
+        };
+        $Or.prototype.reset = function () {
+            this.done = false;
+            this.keep = false;
+            for (var i = 0, length_2 = this._ops.length; i < length_2; i++) {
+                this._ops[i].reset();
+            }
+        };
+        $Or.prototype.next = function (item, key, owner) {
+            var done = false;
+            var success = false;
+            for (var i = 0, length_3 = this._ops.length; i < length_3; i++) {
+                var op = this._ops[i];
+                op.next(item, key, owner);
+                if (op.keep) {
+                    done = true;
+                    success = op.keep;
+                    break;
+                }
+            }
+            this.keep = success;
+            this.done = done;
+        };
+        return $Or;
+    }(BaseOperation));
+    var $Nor = /** @class */ (function (_super) {
+        __extends($Nor, _super);
+        function $Nor() {
+            var _this = _super !== null && _super.apply(this, arguments) || this;
+            _this.propop = false;
+            return _this;
+        }
+        $Nor.prototype.next = function (item, key, owner) {
+            _super.prototype.next.call(this, item, key, owner);
+            this.keep = !this.keep;
+        };
+        return $Nor;
+    }($Or));
+    var $In = /** @class */ (function (_super) {
+        __extends($In, _super);
+        function $In() {
+            var _this = _super !== null && _super.apply(this, arguments) || this;
+            _this.propop = true;
+            return _this;
+        }
+        $In.prototype.init = function () {
+            var _this = this;
+            var params = Array.isArray(this.params) ? this.params : [this.params];
+            this._testers = params.map(function (value) {
+                if (containsOperation(value, _this.options)) {
+                    throw new Error("cannot nest $ under ".concat(_this.name.toLowerCase()));
+                }
+                return createTester(value, _this.options.compare);
+            });
+        };
+        $In.prototype.next = function (item, key, owner) {
+            var done = false;
+            var success = false;
+            for (var i = 0, length_4 = this._testers.length; i < length_4; i++) {
+                var test = this._testers[i];
+                if (test(item)) {
+                    done = true;
+                    success = true;
+                    break;
+                }
+            }
+            this.keep = success;
+            this.done = done;
+        };
+        return $In;
+    }(BaseOperation));
+    var $Nin = /** @class */ (function (_super) {
+        __extends($Nin, _super);
+        function $Nin(params, ownerQuery, options, name) {
+            var _this = _super.call(this, params, ownerQuery, options, name) || this;
+            _this.propop = true;
+            _this._in = new $In(params, ownerQuery, options, name);
+            return _this;
+        }
+        $Nin.prototype.next = function (item, key, owner, root) {
+            this._in.next(item, key, owner);
+            if (isArray(owner) && !root) {
+                if (this._in.keep) {
+                    this.keep = false;
+                    this.done = true;
+                }
+                else if (key == owner.length - 1) {
+                    this.keep = true;
+                    this.done = true;
+                }
+            }
+            else {
+                this.keep = !this._in.keep;
+                this.done = true;
+            }
+        };
+        $Nin.prototype.reset = function () {
+            _super.prototype.reset.call(this);
+            this._in.reset();
+        };
+        return $Nin;
+    }(BaseOperation));
+    var $Exists = /** @class */ (function (_super) {
+        __extends($Exists, _super);
+        function $Exists() {
+            var _this = _super !== null && _super.apply(this, arguments) || this;
+            _this.propop = true;
+            return _this;
+        }
+        $Exists.prototype.next = function (item, key, owner, root, leaf) {
+            if (!leaf) {
+                this.done = true;
+                this.keep = !this.params;
+            }
+            else if (owner.hasOwnProperty(key) === this.params) {
+                this.done = true;
+                this.keep = true;
+            }
+        };
+        return $Exists;
+    }(BaseOperation));
+    var $And = /** @class */ (function (_super) {
+        __extends($And, _super);
+        function $And(params, owneryQuery, options, name) {
+            var _this = _super.call(this, params, owneryQuery, options, params.map(function (query) { return createQueryOperation(query, owneryQuery, options); }), name) || this;
+            _this.propop = false;
+            assertGroupNotEmpty(params);
+            return _this;
+        }
+        $And.prototype.next = function (item, key, owner, root) {
+            this.childrenNext(item, key, owner, root);
+        };
+        return $And;
+    }(NamedGroupOperation));
+    var $All = /** @class */ (function (_super) {
+        __extends($All, _super);
+        function $All(params, owneryQuery, options, name) {
+            var _this = _super.call(this, params, owneryQuery, options, params.map(function (query) { return createQueryOperation(query, owneryQuery, options); }), name) || this;
+            _this.propop = true;
+            return _this;
+        }
+        $All.prototype.next = function (item, key, owner, root) {
+            this.childrenNext(item, key, owner, root);
+        };
+        return $All;
+    }(NamedGroupOperation));
+    var $eq = function (params, owneryQuery, options) {
+        return new EqualsOperation(params, owneryQuery, options);
+    };
+    var $ne = function (params, owneryQuery, options, name) { return new $Ne(params, owneryQuery, options, name); };
+    var $or = function (params, owneryQuery, options, name) { return new $Or(params, owneryQuery, options, name); };
+    var $nor = function (params, owneryQuery, options, name) { return new $Nor(params, owneryQuery, options, name); };
+    var $elemMatch = function (params, owneryQuery, options, name) { return new $ElemMatch(params, owneryQuery, options, name); };
+    var $nin = function (params, owneryQuery, options, name) { return new $Nin(params, owneryQuery, options, name); };
+    var $in = function (params, owneryQuery, options, name) {
+        return new $In(params, owneryQuery, options, name);
+    };
+    var $lt = numericalOperation(function (params) { return function (b) {
+        return b != null && b < params;
+    }; });
+    var $lte = numericalOperation(function (params) { return function (b) {
+        return b === params || b <= params;
+    }; });
+    var $gt = numericalOperation(function (params) { return function (b) {
+        return b != null && b > params;
+    }; });
+    var $gte = numericalOperation(function (params) { return function (b) {
+        return b === params || b >= params;
+    }; });
+    var $mod = function (_a, owneryQuery, options) {
+        var mod = _a[0], equalsValue = _a[1];
+        return new EqualsOperation(function (b) { return comparable(b) % mod === equalsValue; }, owneryQuery, options);
+    };
+    var $exists = function (params, owneryQuery, options, name) { return new $Exists(params, owneryQuery, options, name); };
+    var $regex = function (pattern, owneryQuery, options) {
+        return new EqualsOperation(new RegExp(pattern, owneryQuery.$options), owneryQuery, options);
+    };
+    var $not = function (params, owneryQuery, options, name) { return new $Not(params, owneryQuery, options, name); };
+    var typeAliases = {
+        number: function (v) { return typeof v === "number"; },
+        string: function (v) { return typeof v === "string"; },
+        bool: function (v) { return typeof v === "boolean"; },
+        array: function (v) { return Array.isArray(v); },
+        null: function (v) { return v === null; },
+        timestamp: function (v) { return v instanceof Date; },
+    };
+    var $type = function (clazz, owneryQuery, options) {
+        return new EqualsOperation(function (b) {
+            if (typeof clazz === "string") {
+                if (!typeAliases[clazz]) {
+                    throw new Error("Type alias does not exist");
+                }
+                return typeAliases[clazz](b);
+            }
+            return b != null ? b instanceof clazz || b.constructor === clazz : false;
+        }, owneryQuery, options);
+    };
+    var $and = function (params, ownerQuery, options, name) { return new $And(params, ownerQuery, options, name); };
+    var $all = function (params, ownerQuery, options, name) { return new $All(params, ownerQuery, options, name); };
+    var $size = function (params, ownerQuery, options) { return new $Size(params, ownerQuery, options, "$size"); };
+    var $options = function () { return null; };
+    var $where = function (params, ownerQuery, options) {
+        var test;
+        if (isFunction(params)) {
+            test = params;
+        }
+        else {
+            throw new Error("In CSP mode, sift does not support strings in \"$where\" condition");
+        }
+        return new EqualsOperation(function (b) { return test.bind(b)(b); }, ownerQuery, options);
+    };
+
+    var defaultOperations = /*#__PURE__*/Object.freeze({
+        __proto__: null,
+        $Size: $Size,
+        $all: $all,
+        $and: $and,
+        $elemMatch: $elemMatch,
+        $eq: $eq,
+        $exists: $exists,
+        $gt: $gt,
+        $gte: $gte,
+        $in: $in,
+        $lt: $lt,
+        $lte: $lte,
+        $mod: $mod,
+        $ne: $ne,
+        $nin: $nin,
+        $nor: $nor,
+        $not: $not,
+        $options: $options,
+        $or: $or,
+        $regex: $regex,
+        $size: $size,
+        $type: $type,
+        $where: $where
+    });
+
+    var createDefaultQueryOperation = function (query, ownerQuery, _a) {
+        var _b = _a === void 0 ? {} : _a, compare = _b.compare, operations = _b.operations;
+        return createQueryOperation(query, ownerQuery, {
+            compare: compare,
+            operations: Object.assign({}, defaultOperations, operations || {}),
+        });
+    };
+    var createDefaultQueryTester = function (query, options) {
+        if (options === void 0) { options = {}; }
+        var op = createDefaultQueryOperation(query, null, options);
+        return createOperationTester(op);
+    };
+
+    exports.$Size = $Size;
+    exports.$all = $all;
+    exports.$and = $and;
+    exports.$elemMatch = $elemMatch;
+    exports.$eq = $eq;
+    exports.$exists = $exists;
+    exports.$gt = $gt;
+    exports.$gte = $gte;
+    exports.$in = $in;
+    exports.$lt = $lt;
+    exports.$lte = $lte;
+    exports.$mod = $mod;
+    exports.$ne = $ne;
+    exports.$nin = $nin;
+    exports.$nor = $nor;
+    exports.$not = $not;
+    exports.$options = $options;
+    exports.$or = $or;
+    exports.$regex = $regex;
+    exports.$size = $size;
+    exports.$type = $type;
+    exports.$where = $where;
+    exports.EqualsOperation = EqualsOperation;
+    exports.createDefaultQueryOperation = createDefaultQueryOperation;
+    exports.createEqualsOperation = createEqualsOperation;
+    exports.createOperationTester = createOperationTester;
+    exports.createQueryOperation = createQueryOperation;
+    exports.createQueryTester = createQueryTester;
+    exports.default = createDefaultQueryTester;
+
+    Object.defineProperty(exports, '__esModule', { value: true });
+
+}));
+//# sourceMappingURL=sift.csp.min.js.map
diff --git a/backend/node_modules/sift/sift.csp.min.js.map b/backend/node_modules/sift/sift.csp.min.js.map
new file mode 100644
index 0000000..681fb85
--- /dev/null
+++ b/backend/node_modules/sift/sift.csp.min.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"sift.csp.min.js","sources":["node_modules/tslib/tslib.es6.js","src/utils.ts","src/core.ts","src/operations.ts","src/index.ts"],"sourcesContent":["/******************************************************************************\r\nCopyright (c) Microsoft Corporation.\r\n\r\nPermission to use, copy, modify, and/or distribute this software for any\r\npurpose with or without fee is hereby granted.\r\n\r\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\r\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\r\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n/* global Reflect, Promise, SuppressedError, Symbol */\r\n\r\nvar extendStatics = function(d, b) {\r\n    extendStatics = Object.setPrototypeOf ||\r\n        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n        function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\r\n    return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n    if (typeof b !== \"function\" && b !== null)\r\n        throw new TypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\r\n    extendStatics(d, b);\r\n    function __() { this.constructor = d; }\r\n    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\r\n}\r\n\r\nexport var __assign = function() {\r\n    __assign = Object.assign || function __assign(t) {\r\n        for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n            s = arguments[i];\r\n            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\r\n        }\r\n        return t;\r\n    }\r\n    return __assign.apply(this, arguments);\r\n}\r\n\r\nexport function __rest(s, e) {\r\n    var t = {};\r\n    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\r\n        t[p] = s[p];\r\n    if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\r\n        for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\r\n            if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\r\n                t[p[i]] = s[p[i]];\r\n        }\r\n    return t;\r\n}\r\n\r\nexport function __decorate(decorators, target, key, desc) {\r\n    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\r\n    if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\r\n    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\r\n    return c > 3 && r && Object.defineProperty(target, key, r), r;\r\n}\r\n\r\nexport function __param(paramIndex, decorator) {\r\n    return function (target, key) { decorator(target, key, paramIndex); }\r\n}\r\n\r\nexport function __esDecorate(ctor, descriptorIn, decorators, contextIn, initializers, extraInitializers) {\r\n    function accept(f) { if (f !== void 0 && typeof f !== \"function\") throw new TypeError(\"Function expected\"); return f; }\r\n    var kind = contextIn.kind, key = kind === \"getter\" ? \"get\" : kind === \"setter\" ? \"set\" : \"value\";\r\n    var target = !descriptorIn && ctor ? contextIn[\"static\"] ? ctor : ctor.prototype : null;\r\n    var descriptor = descriptorIn || (target ? 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diff --git a/backend/node_modules/sift/sift.min.js b/backend/node_modules/sift/sift.min.js
new file mode 100644
index 0000000..035d448
--- /dev/null
+++ b/backend/node_modules/sift/sift.min.js
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diff --git a/backend/node_modules/sift/sift.min.js.map b/backend/node_modules/sift/sift.min.js.map
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(function(o, m, k, k2) {\r\n    if (k2 === undefined) k2 = k;\r\n    var desc = Object.getOwnPropertyDescriptor(m, k);\r\n    if (!desc || (\"get\" in desc ? !m.__esModule : desc.writable || desc.configurable)) {\r\n        desc = { enumerable: true, get: function() { return m[k]; } };\r\n    }\r\n    Object.defineProperty(o, k2, desc);\r\n}) : (function(o, m, k, k2) {\r\n    if (k2 === undefined) k2 = k;\r\n    o[k2] = m[k];\r\n});\r\n\r\nexport function __exportStar(m, o) {\r\n    for (var p in m) if (p !== \"default\" && !Object.prototype.hasOwnProperty.call(o, p)) __createBinding(o, m, p);\r\n}\r\n\r\nexport function __values(o) {\r\n    var s = typeof Symbol === \"function\" && Symbol.iterator, m = s && o[s], i = 0;\r\n    if (m) return m.call(o);\r\n    if (o && typeof o.length === \"number\") return {\r\n        next: function () {\r\n            if (o && i >= o.length) o = void 0;\r\n            return { value: o && o[i++], done: !o };\r\n        }\r\n    };\r\n    throw new TypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\r\n}\r\n\r\nexport function __read(o, n) {\r\n    var m = typeof Symbol === \"function\" && o[Symbol.iterator];\r\n    if (!m) return o;\r\n    var i = m.call(o), r, ar = [], e;\r\n    try {\r\n        while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\r\n    }\r\n    catch (error) { e = { error: error }; }\r\n    finally {\r\n        try {\r\n            if (r && !r.done && (m = i[\"return\"])) m.call(i);\r\n        }\r\n        finally { if (e) throw e.error; }\r\n    }\r\n    return ar;\r\n}\r\n\r\n/** @deprecated */\r\nexport function __spread() {\r\n    for (var ar = [], i = 0; i < arguments.length; i++)\r\n        ar = ar.concat(__read(arguments[i]));\r\n    return ar;\r\n}\r\n\r\n/** @deprecated */\r\nexport function __spreadArrays() {\r\n    for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\r\n    for (var r = Array(s), k = 0, i = 0; i < il; i++)\r\n        for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\r\n            r[k] = a[j];\r\n    return r;\r\n}\r\n\r\nexport function __spreadArray(to, from, pack) {\r\n    if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {\r\n        if (ar || !(i in from)) {\r\n            if (!ar) ar = Array.prototype.slice.call(from, 0, i);\r\n            ar[i] = from[i];\r\n        }\r\n    }\r\n    return to.concat(ar || Array.prototype.slice.call(from));\r\n}\r\n\r\nexport function __await(v) {\r\n    return this instanceof __await ? (this.v = v, this) : new __await(v);\r\n}\r\n\r\nexport function __asyncGenerator(thisArg, _arguments, generator) {\r\n    if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n    var g = generator.apply(thisArg, _arguments || []), i, q = [];\r\n    return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\r\n    function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\r\n    function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\r\n    function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\r\n    function fulfill(value) { resume(\"next\", value); }\r\n    function reject(value) { resume(\"throw\", value); }\r\n    function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\r\n}\r\n\r\nexport function __asyncDelegator(o) {\r\n    var i, p;\r\n    return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\r\n    function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: false } : f ? f(v) : v; } : f; }\r\n}\r\n\r\nexport function __asyncValues(o) {\r\n    if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n    var m = o[Symbol.asyncIterator], i;\r\n    return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\r\n    function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\r\n    function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\r\n}\r\n\r\nexport function __makeTemplateObject(cooked, raw) {\r\n    if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\r\n    return cooked;\r\n};\r\n\r\nvar __setModuleDefault = Object.create ? (function(o, v) {\r\n    Object.defineProperty(o, \"default\", { enumerable: true, value: v });\r\n}) : function(o, v) {\r\n    o[\"default\"] = v;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n    if (mod && mod.__esModule) return mod;\r\n    var result = {};\r\n    if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\r\n    __setModuleDefault(result, mod);\r\n    return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n    return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n\r\nexport function __classPrivateFieldGet(receiver, state, kind, f) {\r\n    if (kind === \"a\" && !f) throw new TypeError(\"Private accessor was defined without a getter\");\r\n    if (typeof state === \"function\" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError(\"Cannot read private member from an object whose class did not declare it\");\r\n    return kind === \"m\" ? f : kind === \"a\" ? f.call(receiver) : f ? f.value : state.get(receiver);\r\n}\r\n\r\nexport function __classPrivateFieldSet(receiver, state, value, kind, f) {\r\n    if (kind === \"m\") throw new TypeError(\"Private method is not writable\");\r\n    if (kind === \"a\" && !f) throw new TypeError(\"Private accessor was defined without a setter\");\r\n    if (typeof state === \"function\" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError(\"Cannot write private member to an object whose class did not declare it\");\r\n    return (kind === \"a\" ? f.call(receiver, value) : f ? f.value = value : state.set(receiver, value)), value;\r\n}\r\n\r\nexport function __classPrivateFieldIn(state, receiver) {\r\n    if (receiver === null || (typeof receiver !== \"object\" && typeof receiver !== \"function\")) throw new TypeError(\"Cannot use 'in' operator on non-object\");\r\n    return typeof state === \"function\" ? receiver === state : state.has(receiver);\r\n}\r\n\r\nexport function __addDisposableResource(env, value, async) {\r\n    if (value !== null && value !== void 0) {\r\n        if (typeof value !== \"object\" && typeof value !== \"function\") throw new TypeError(\"Object expected.\");\r\n        var dispose;\r\n        if (async) {\r\n            if (!Symbol.asyncDispose) throw new TypeError(\"Symbol.asyncDispose is not defined.\");\r\n            dispose = value[Symbol.asyncDispose];\r\n        }\r\n        if (dispose === void 0) {\r\n            if (!Symbol.dispose) throw new TypeError(\"Symbol.dispose is not defined.\");\r\n            dispose = value[Symbol.dispose];\r\n        }\r\n        if (typeof dispose !== \"function\") throw new TypeError(\"Object not disposable.\");\r\n        env.stack.push({ value: value, dispose: dispose, async: async });\r\n    }\r\n    else if (async) {\r\n        env.stack.push({ async: true });\r\n    }\r\n    return value;\r\n}\r\n\r\nvar _SuppressedError = typeof SuppressedError === \"function\" ? 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\ No newline at end of file
diff --git a/backend/node_modules/sift/src/core.ts b/backend/node_modules/sift/src/core.ts
new file mode 100644
index 0000000..68ecea9
--- /dev/null
+++ b/backend/node_modules/sift/src/core.ts
@@ -0,0 +1,494 @@
+import {
+  isArray,
+  Key,
+  Comparator,
+  isVanillaObject,
+  comparable,
+  equals,
+  coercePotentiallyNull,
+  isProperty,
+} from "./utils";
+
+export interface Operation<TItem> {
+  readonly keep: boolean;
+  readonly done: boolean;
+  propop: boolean;
+  reset();
+  next(item: TItem, key?: Key, owner?: any, root?: boolean, leaf?: boolean);
+}
+
+export type Tester = (
+  item: any,
+  key?: Key,
+  owner?: any,
+  root?: boolean,
+  leaf?: boolean,
+) => boolean;
+
+export interface NamedOperation {
+  name: string;
+}
+
+export type OperationCreator<TItem> = (
+  params: any,
+  parentQuery: any,
+  options: Options,
+  name: string,
+) => Operation<TItem>;
+
+export type BasicValueQuery<TValue> = {
+  $eq?: TValue;
+  $ne?: TValue;
+  $lt?: TValue;
+  $gt?: TValue;
+  $lte?: TValue;
+  $gte?: TValue;
+  $in?: TValue[];
+  $nin?: TValue[];
+  $all?: TValue[];
+  $mod?: [number, number];
+  $exists?: boolean;
+  $regex?: string | RegExp;
+  $size?: number;
+  $where?: ((this: TValue, obj: TValue) => boolean) | string;
+  $options?: "i" | "g" | "m" | "u";
+  $type?: Function;
+  $not?: NestedQuery<TValue>;
+  $or?: NestedQuery<TValue>[];
+  $nor?: NestedQuery<TValue>[];
+  $and?: NestedQuery<TValue>[];
+};
+
+export type ArrayValueQuery<TValue> = {
+  $elemMatch?: Query<TValue>;
+} & BasicValueQuery<TValue>;
+type Unpacked<T> = T extends (infer U)[] ? U : T;
+
+export type ValueQuery<TValue> =
+  TValue extends Array<any>
+    ? ArrayValueQuery<Unpacked<TValue>>
+    : BasicValueQuery<TValue>;
+
+type NotObject = string | number | Date | boolean | Array<any>;
+export type ShapeQuery<TItemSchema> = TItemSchema extends NotObject
+  ? {}
+  : { [k in keyof TItemSchema]?: TItemSchema[k] | ValueQuery<TItemSchema[k]> };
+
+export type NestedQuery<TItemSchema> = ValueQuery<TItemSchema> &
+  ShapeQuery<TItemSchema>;
+export type Query<TItemSchema> =
+  | TItemSchema
+  | RegExp
+  | NestedQuery<TItemSchema>;
+
+export type QueryOperators<TValue = any> = keyof ValueQuery<TValue>;
+
+/**
+ * Walks through each value given the context - used for nested operations. E.g:
+ * { "person.address": { $eq: "blarg" }}
+ */
+
+const walkKeyPathValues = (
+  item: any,
+  keyPath: Key[],
+  next: Tester,
+  depth: number,
+  key: Key,
+  owner: any,
+) => {
+  const currentKey = keyPath[depth];
+
+  // if array, then try matching. Might fall through for cases like:
+  // { $eq: [1, 2, 3] }, [ 1, 2, 3 ].
+  if (
+    isArray(item) &&
+    isNaN(Number(currentKey)) &&
+    !isProperty(item, currentKey)
+  ) {
+    for (let i = 0, { length } = item; i < length; i++) {
+      // if FALSE is returned, then terminate walker. For operations, this simply
+      // means that the search critera was met.
+      if (!walkKeyPathValues(item[i], keyPath, next, depth, i, item)) {
+        return false;
+      }
+    }
+  }
+
+  if (depth === keyPath.length || item == null) {
+    return next(item, key, owner, depth === 0, depth === keyPath.length);
+  }
+
+  return walkKeyPathValues(
+    item[currentKey],
+    keyPath,
+    next,
+    depth + 1,
+    currentKey,
+    item,
+  );
+};
+
+export abstract class BaseOperation<TParams, TItem = any>
+  implements Operation<TItem>
+{
+  keep: boolean;
+  done: boolean;
+  abstract propop: boolean;
+  constructor(
+    readonly params: TParams,
+    readonly owneryQuery: any,
+    readonly options: Options,
+    readonly name?: string,
+  ) {
+    this.init();
+  }
+  protected init() {}
+  reset() {
+    this.done = false;
+    this.keep = false;
+  }
+  abstract next(
+    item: any,
+    key: Key,
+    parent: any,
+    root: boolean,
+    leaf?: boolean,
+  );
+}
+
+abstract class GroupOperation extends BaseOperation<any> {
+  keep: boolean;
+  done: boolean;
+
+  constructor(
+    params: any,
+    owneryQuery: any,
+    options: Options,
+    public readonly children: Operation<any>[],
+  ) {
+    super(params, owneryQuery, options);
+  }
+
+  /**
+   */
+
+  reset() {
+    this.keep = false;
+    this.done = false;
+    for (let i = 0, { length } = this.children; i < length; i++) {
+      this.children[i].reset();
+    }
+  }
+
+  abstract next(item: any, key: Key, owner: any, root: boolean);
+
+  /**
+   */
+
+  protected childrenNext(
+    item: any,
+    key: Key,
+    owner: any,
+    root: boolean,
+    leaf?: boolean,
+  ) {
+    let done = true;
+    let keep = true;
+    for (let i = 0, { length } = this.children; i < length; i++) {
+      const childOperation = this.children[i];
+      if (!childOperation.done) {
+        childOperation.next(item, key, owner, root, leaf);
+      }
+      if (!childOperation.keep) {
+        keep = false;
+      }
+      if (childOperation.done) {
+        if (!childOperation.keep) {
+          break;
+        }
+      } else {
+        done = false;
+      }
+    }
+    this.done = done;
+    this.keep = keep;
+  }
+}
+
+export abstract class NamedGroupOperation
+  extends GroupOperation
+  implements NamedOperation
+{
+  abstract propop: boolean;
+  constructor(
+    params: any,
+    owneryQuery: any,
+    options: Options,
+    children: Operation<any>[],
+    readonly name: string,
+  ) {
+    super(params, owneryQuery, options, children);
+  }
+}
+
+export class QueryOperation<TItem> extends GroupOperation {
+  readonly propop = true;
+  /**
+   */
+
+  next(item: TItem, key: Key, parent: any, root: boolean) {
+    this.childrenNext(item, key, parent, root);
+  }
+}
+
+export class NestedOperation extends GroupOperation {
+  readonly propop = true;
+  constructor(
+    readonly keyPath: Key[],
+    params: any,
+    owneryQuery: any,
+    options: Options,
+    children: Operation<any>[],
+  ) {
+    super(params, owneryQuery, options, children);
+  }
+  /**
+   */
+
+  next(item: any, key: Key, parent: any) {
+    walkKeyPathValues(
+      item,
+      this.keyPath,
+      this._nextNestedValue,
+      0,
+      key,
+      parent,
+    );
+  }
+
+  /**
+   */
+
+  private _nextNestedValue = (
+    value: any,
+    key: Key,
+    owner: any,
+    root: boolean,
+    leaf: boolean,
+  ) => {
+    this.childrenNext(value, key, owner, root, leaf);
+    return !this.done;
+  };
+}
+
+export const createTester = (a, compare: Comparator) => {
+  if (a instanceof Function) {
+    return a;
+  }
+  if (a instanceof RegExp) {
+    return (b) => {
+      const result = typeof b === "string" && a.test(b);
+      a.lastIndex = 0;
+      return result;
+    };
+  }
+  const comparableA = comparable(a);
+  return (b) => compare(comparableA, comparable(b));
+};
+
+export class EqualsOperation<TParam> extends BaseOperation<TParam> {
+  readonly propop = true;
+  private _test: Tester;
+  init() {
+    this._test = createTester(this.params, this.options.compare);
+  }
+  next(item, key: Key, parent: any) {
+    if (!Array.isArray(parent) || parent.hasOwnProperty(key)) {
+      if (this._test(item, key, parent)) {
+        this.done = true;
+        this.keep = true;
+      }
+    }
+  }
+}
+
+export const createEqualsOperation = (
+  params: any,
+  owneryQuery: any,
+  options: Options,
+) => new EqualsOperation(params, owneryQuery, options);
+
+export const numericalOperationCreator =
+  (createNumericalOperation: OperationCreator<any>) =>
+  (params: any, owneryQuery: any, options: Options, name: string) => {
+    return createNumericalOperation(params, owneryQuery, options, name);
+  };
+
+export const numericalOperation = (createTester: (value: any) => Tester) =>
+  numericalOperationCreator(
+    (params: any, owneryQuery: Query<any>, options: Options, name: string) => {
+      const typeofParams = typeof comparable(params);
+      const test = createTester(params);
+      return new EqualsOperation(
+        (b) => {
+          const actualValue = coercePotentiallyNull(b);
+          return (
+            typeof comparable(actualValue) === typeofParams && test(actualValue)
+          );
+        },
+        owneryQuery,
+        options,
+        name,
+      );
+    },
+  );
+
+export type Options = {
+  operations: {
+    [identifier: string]: OperationCreator<any>;
+  };
+  compare: (a, b) => boolean;
+};
+
+const createNamedOperation = (
+  name: string,
+  params: any,
+  parentQuery: any,
+  options: Options,
+) => {
+  const operationCreator = options.operations[name];
+  if (!operationCreator) {
+    throwUnsupportedOperation(name);
+  }
+  return operationCreator(params, parentQuery, options, name);
+};
+
+const throwUnsupportedOperation = (name: string) => {
+  throw new Error(`Unsupported operation: ${name}`);
+};
+
+export const containsOperation = (query: any, options: Options) => {
+  for (const key in query) {
+    if (options.operations.hasOwnProperty(key) || key.charAt(0) === "$")
+      return true;
+  }
+  return false;
+};
+const createNestedOperation = (
+  keyPath: Key[],
+  nestedQuery: any,
+  parentKey: string,
+  owneryQuery: any,
+  options: Options,
+) => {
+  if (containsOperation(nestedQuery, options)) {
+    const [selfOperations, nestedOperations] = createQueryOperations(
+      nestedQuery,
+      parentKey,
+      options,
+    );
+    if (nestedOperations.length) {
+      throw new Error(
+        `Property queries must contain only operations, or exact objects.`,
+      );
+    }
+    return new NestedOperation(
+      keyPath,
+      nestedQuery,
+      owneryQuery,
+      options,
+      selfOperations,
+    );
+  }
+  return new NestedOperation(keyPath, nestedQuery, owneryQuery, options, [
+    new EqualsOperation(nestedQuery, owneryQuery, options),
+  ]);
+};
+
+export const createQueryOperation = <TItem, TSchema = TItem>(
+  query: Query<TSchema>,
+  owneryQuery: any = null,
+  { compare, operations }: Partial<Options> = {},
+): QueryOperation<TItem> => {
+  const options = {
+    compare: compare || equals,
+    operations: Object.assign({}, operations || {}),
+  };
+
+  const [selfOperations, nestedOperations] = createQueryOperations(
+    query,
+    null,
+    options,
+  );
+
+  const ops = [];
+
+  if (selfOperations.length) {
+    ops.push(
+      new NestedOperation([], query, owneryQuery, options, selfOperations),
+    );
+  }
+
+  ops.push(...nestedOperations);
+
+  if (ops.length === 1) {
+    return ops[0];
+  }
+  return new QueryOperation(query, owneryQuery, options, ops);
+};
+
+const createQueryOperations = (
+  query: any,
+  parentKey: string,
+  options: Options,
+) => {
+  const selfOperations = [];
+  const nestedOperations = [];
+  if (!isVanillaObject(query)) {
+    selfOperations.push(new EqualsOperation(query, query, options));
+    return [selfOperations, nestedOperations];
+  }
+  for (const key in query) {
+    if (options.operations.hasOwnProperty(key)) {
+      const op = createNamedOperation(key, query[key], query, options);
+
+      if (op) {
+        if (!op.propop && parentKey && !options.operations[parentKey]) {
+          throw new Error(
+            `Malformed query. ${key} cannot be matched against property.`,
+          );
+        }
+      }
+
+      // probably just a flag for another operation (like $options)
+      if (op != null) {
+        selfOperations.push(op);
+      }
+    } else if (key.charAt(0) === "$") {
+      throwUnsupportedOperation(key);
+    } else {
+      nestedOperations.push(
+        createNestedOperation(key.split("."), query[key], key, query, options),
+      );
+    }
+  }
+
+  return [selfOperations, nestedOperations];
+};
+
+export const createOperationTester =
+  <TItem>(operation: Operation<TItem>) =>
+  (item: TItem, key?: Key, owner?: any) => {
+    operation.reset();
+    operation.next(item, key, owner);
+    return operation.keep;
+  };
+
+export const createQueryTester = <TItem, TSchema = TItem>(
+  query: Query<TSchema>,
+  options: Partial<Options> = {},
+) => {
+  return createOperationTester(
+    createQueryOperation<TItem, TSchema>(query, null, options),
+  );
+};
diff --git a/backend/node_modules/sift/src/index.ts b/backend/node_modules/sift/src/index.ts
new file mode 100644
index 0000000..ea733b9
--- /dev/null
+++ b/backend/node_modules/sift/src/index.ts
@@ -0,0 +1,54 @@
+import * as defaultOperations from "./operations";
+import {
+  Query,
+  QueryOperators,
+  BasicValueQuery,
+  ArrayValueQuery,
+  ValueQuery,
+  NestedQuery,
+  ShapeQuery,
+  Options,
+  createQueryTester,
+  EqualsOperation,
+  createQueryOperation,
+  createEqualsOperation,
+  createOperationTester,
+} from "./core";
+
+const createDefaultQueryOperation = <TItem, TSchema extends TItem = TItem>(
+  query: Query<TSchema>,
+  ownerQuery: any,
+  { compare, operations }: Partial<Options> = {},
+) => {
+  return createQueryOperation(query, ownerQuery, {
+    compare,
+    operations: Object.assign({}, defaultOperations, operations || {}),
+  });
+};
+
+const createDefaultQueryTester = <TItem, TSchema extends TItem = TItem>(
+  query: Query<TSchema>,
+  options: Partial<Options> = {},
+) => {
+  const op = createDefaultQueryOperation(query, null, options);
+  return createOperationTester(op);
+};
+
+export {
+  Query,
+  QueryOperators,
+  BasicValueQuery,
+  ArrayValueQuery,
+  ValueQuery,
+  NestedQuery,
+  ShapeQuery,
+  EqualsOperation,
+  createQueryTester,
+  createOperationTester,
+  createDefaultQueryOperation,
+  createEqualsOperation,
+  createQueryOperation,
+};
+export * from "./operations";
+
+export default createDefaultQueryTester;
diff --git a/backend/node_modules/sift/src/operations.ts b/backend/node_modules/sift/src/operations.ts
new file mode 100644
index 0000000..68177b1
--- /dev/null
+++ b/backend/node_modules/sift/src/operations.ts
@@ -0,0 +1,422 @@
+import {
+  BaseOperation,
+  EqualsOperation,
+  Options,
+  createTester,
+  Tester,
+  createQueryOperation,
+  QueryOperation,
+  Operation,
+  Query,
+  NamedGroupOperation,
+  numericalOperation,
+  containsOperation,
+} from "./core";
+import { Key, comparable, isFunction, isArray } from "./utils";
+
+class $Ne extends BaseOperation<any> {
+  readonly propop = true;
+  private _test: Tester;
+  init() {
+    this._test = createTester(this.params, this.options.compare);
+  }
+  reset() {
+    super.reset();
+    this.keep = true;
+  }
+  next(item: any) {
+    if (this._test(item)) {
+      this.done = true;
+      this.keep = false;
+    }
+  }
+}
+// https://docs.mongodb.com/manual/reference/operator/query/elemMatch/
+class $ElemMatch extends BaseOperation<Query<any>> {
+  readonly propop = true;
+  private _queryOperation: QueryOperation<any>;
+  init() {
+    if (!this.params || typeof this.params !== "object") {
+      throw new Error(`Malformed query. $elemMatch must by an object.`);
+    }
+    this._queryOperation = createQueryOperation(
+      this.params,
+      this.owneryQuery,
+      this.options,
+    );
+  }
+  reset() {
+    super.reset();
+    this._queryOperation.reset();
+  }
+  next(item: any) {
+    if (isArray(item)) {
+      for (let i = 0, { length } = item; i < length; i++) {
+        // reset query operation since item being tested needs to pass _all_ query
+        // operations for it to be a success
+        this._queryOperation.reset();
+
+        const child = item[i];
+        this._queryOperation.next(child, i, item, false);
+        this.keep = this.keep || this._queryOperation.keep;
+      }
+      this.done = true;
+    } else {
+      this.done = false;
+      this.keep = false;
+    }
+  }
+}
+
+class $Not extends BaseOperation<Query<any>> {
+  readonly propop = true;
+  private _queryOperation: QueryOperation<any>;
+  init() {
+    this._queryOperation = createQueryOperation(
+      this.params,
+      this.owneryQuery,
+      this.options,
+    );
+  }
+  reset() {
+    super.reset();
+    this._queryOperation.reset();
+  }
+  next(item: any, key: Key, owner: any, root: boolean) {
+    this._queryOperation.next(item, key, owner, root);
+    this.done = this._queryOperation.done;
+    this.keep = !this._queryOperation.keep;
+  }
+}
+
+export class $Size extends BaseOperation<any> {
+  readonly propop = true;
+  init() {}
+  next(item) {
+    if (isArray(item) && item.length === this.params) {
+      this.done = true;
+      this.keep = true;
+    }
+    // if (parent && parent.length === this.params) {
+    //   this.done = true;
+    //   this.keep = true;
+    // }
+  }
+}
+
+const assertGroupNotEmpty = (values: any[]) => {
+  if (values.length === 0) {
+    throw new Error(`$and/$or/$nor must be a nonempty array`);
+  }
+};
+
+class $Or extends BaseOperation<any> {
+  readonly propop = false;
+  private _ops: Operation<any>[];
+  init() {
+    assertGroupNotEmpty(this.params);
+    this._ops = this.params.map((op) =>
+      createQueryOperation(op, null, this.options),
+    );
+  }
+  reset() {
+    this.done = false;
+    this.keep = false;
+    for (let i = 0, { length } = this._ops; i < length; i++) {
+      this._ops[i].reset();
+    }
+  }
+  next(item: any, key: Key, owner: any) {
+    let done = false;
+    let success = false;
+    for (let i = 0, { length } = this._ops; i < length; i++) {
+      const op = this._ops[i];
+      op.next(item, key, owner);
+      if (op.keep) {
+        done = true;
+        success = op.keep;
+        break;
+      }
+    }
+
+    this.keep = success;
+    this.done = done;
+  }
+}
+
+class $Nor extends $Or {
+  readonly propop = false;
+  next(item: any, key: Key, owner: any) {
+    super.next(item, key, owner);
+    this.keep = !this.keep;
+  }
+}
+
+class $In extends BaseOperation<any> {
+  readonly propop = true;
+  private _testers: Tester[];
+  init() {
+    const params = Array.isArray(this.params) ? this.params : [this.params];
+    this._testers = params.map((value) => {
+      if (containsOperation(value, this.options)) {
+        throw new Error(`cannot nest $ under ${this.name.toLowerCase()}`);
+      }
+      return createTester(value, this.options.compare);
+    });
+  }
+  next(item: any, key: Key, owner: any) {
+    let done = false;
+    let success = false;
+    for (let i = 0, { length } = this._testers; i < length; i++) {
+      const test = this._testers[i];
+      if (test(item)) {
+        done = true;
+        success = true;
+        break;
+      }
+    }
+
+    this.keep = success;
+    this.done = done;
+  }
+}
+
+class $Nin extends BaseOperation<any> {
+  readonly propop = true;
+  private _in: $In;
+  constructor(params: any, ownerQuery: any, options: Options, name: string) {
+    super(params, ownerQuery, options, name);
+    this._in = new $In(params, ownerQuery, options, name);
+  }
+  next(item: any, key: Key, owner: any, root: boolean) {
+    this._in.next(item, key, owner);
+
+    if (isArray(owner) && !root) {
+      if (this._in.keep) {
+        this.keep = false;
+        this.done = true;
+      } else if (key == owner.length - 1) {
+        this.keep = true;
+        this.done = true;
+      }
+    } else {
+      this.keep = !this._in.keep;
+      this.done = true;
+    }
+  }
+  reset() {
+    super.reset();
+    this._in.reset();
+  }
+}
+
+class $Exists extends BaseOperation<boolean> {
+  readonly propop = true;
+  next(item: any, key: Key, owner: any, root: boolean, leaf?: boolean) {
+    if (!leaf) {
+      this.done = true;
+      this.keep = !this.params;
+    } else if (owner.hasOwnProperty(key) === this.params) {
+      this.done = true;
+      this.keep = true;
+    }
+  }
+}
+
+class $And extends NamedGroupOperation {
+  readonly propop = false;
+  constructor(
+    params: Query<any>[],
+    owneryQuery: Query<any>,
+    options: Options,
+    name: string,
+  ) {
+    super(
+      params,
+      owneryQuery,
+      options,
+      params.map((query) => createQueryOperation(query, owneryQuery, options)),
+      name,
+    );
+
+    assertGroupNotEmpty(params);
+  }
+  next(item: any, key: Key, owner: any, root: boolean) {
+    this.childrenNext(item, key, owner, root);
+  }
+}
+
+class $All extends NamedGroupOperation {
+  readonly propop = true;
+  constructor(
+    params: Query<any>[],
+    owneryQuery: Query<any>,
+    options: Options,
+    name: string,
+  ) {
+    super(
+      params,
+      owneryQuery,
+      options,
+      params.map((query) => createQueryOperation(query, owneryQuery, options)),
+      name,
+    );
+  }
+  next(item: any, key: Key, owner: any, root: boolean) {
+    this.childrenNext(item, key, owner, root);
+  }
+}
+
+export const $eq = (params: any, owneryQuery: Query<any>, options: Options) =>
+  new EqualsOperation(params, owneryQuery, options);
+export const $ne = (
+  params: any,
+  owneryQuery: Query<any>,
+  options: Options,
+  name: string,
+) => new $Ne(params, owneryQuery, options, name);
+export const $or = (
+  params: Query<any>[],
+  owneryQuery: Query<any>,
+  options: Options,
+  name: string,
+) => new $Or(params, owneryQuery, options, name);
+export const $nor = (
+  params: Query<any>[],
+  owneryQuery: Query<any>,
+  options: Options,
+  name: string,
+) => new $Nor(params, owneryQuery, options, name);
+export const $elemMatch = (
+  params: any,
+  owneryQuery: Query<any>,
+  options: Options,
+  name: string,
+) => new $ElemMatch(params, owneryQuery, options, name);
+export const $nin = (
+  params: any,
+  owneryQuery: Query<any>,
+  options: Options,
+  name: string,
+) => new $Nin(params, owneryQuery, options, name);
+export const $in = (
+  params: any,
+  owneryQuery: Query<any>,
+  options: Options,
+  name: string,
+) => {
+  return new $In(params, owneryQuery, options, name);
+};
+
+export const $lt = numericalOperation((params) => (b) => {
+  return b != null && b < params;
+});
+export const $lte = numericalOperation((params) => (b) => {
+  return b === params || b <= params;
+});
+export const $gt = numericalOperation((params) => (b) => {
+  return b != null && b > params;
+});
+export const $gte = numericalOperation((params) => (b) => {
+  return b === params || b >= params;
+});
+export const $mod = (
+  [mod, equalsValue]: number[],
+  owneryQuery: Query<any>,
+  options: Options,
+) =>
+  new EqualsOperation(
+    (b) => comparable(b) % mod === equalsValue,
+    owneryQuery,
+    options,
+  );
+export const $exists = (
+  params: boolean,
+  owneryQuery: Query<any>,
+  options: Options,
+  name: string,
+) => new $Exists(params, owneryQuery, options, name);
+export const $regex = (
+  pattern: string,
+  owneryQuery: Query<any>,
+  options: Options,
+) =>
+  new EqualsOperation(
+    new RegExp(pattern, owneryQuery.$options),
+    owneryQuery,
+    options,
+  );
+export const $not = (
+  params: any,
+  owneryQuery: Query<any>,
+  options: Options,
+  name: string,
+) => new $Not(params, owneryQuery, options, name);
+
+const typeAliases = {
+  number: (v) => typeof v === "number",
+  string: (v) => typeof v === "string",
+  bool: (v) => typeof v === "boolean",
+  array: (v) => Array.isArray(v),
+  null: (v) => v === null,
+  timestamp: (v) => v instanceof Date,
+};
+
+export const $type = (
+  clazz: Function | string,
+  owneryQuery: Query<any>,
+  options: Options,
+) =>
+  new EqualsOperation(
+    (b) => {
+      if (typeof clazz === "string") {
+        if (!typeAliases[clazz]) {
+          throw new Error(`Type alias does not exist`);
+        }
+
+        return typeAliases[clazz](b);
+      }
+
+      return b != null ? b instanceof clazz || b.constructor === clazz : false;
+    },
+    owneryQuery,
+    options,
+  );
+export const $and = (
+  params: Query<any>[],
+  ownerQuery: Query<any>,
+  options: Options,
+  name: string,
+) => new $And(params, ownerQuery, options, name);
+
+export const $all = (
+  params: Query<any>[],
+  ownerQuery: Query<any>,
+  options: Options,
+  name: string,
+) => new $All(params, ownerQuery, options, name);
+export const $size = (
+  params: number,
+  ownerQuery: Query<any>,
+  options: Options,
+) => new $Size(params, ownerQuery, options, "$size");
+export const $options = () => null;
+export const $where = (
+  params: string | Function,
+  ownerQuery: Query<any>,
+  options: Options,
+) => {
+  let test;
+
+  if (isFunction(params)) {
+    test = params;
+  } else if (!process.env.CSP_ENABLED) {
+    test = new Function("obj", "return " + params);
+  } else {
+    throw new Error(
+      `In CSP mode, sift does not support strings in "$where" condition`,
+    );
+  }
+
+  return new EqualsOperation((b) => test.bind(b)(b), ownerQuery, options);
+};
diff --git a/backend/node_modules/sift/src/utils.ts b/backend/node_modules/sift/src/utils.ts
new file mode 100644
index 0000000..02e2a75
--- /dev/null
+++ b/backend/node_modules/sift/src/utils.ts
@@ -0,0 +1,74 @@
+export type Key = string | number;
+export type Comparator = (a, b) => boolean;
+export const typeChecker = <TType>(type) => {
+  const typeString = "[object " + type + "]";
+  return function (value): value is TType {
+    return getClassName(value) === typeString;
+  };
+};
+
+const getClassName = (value) => Object.prototype.toString.call(value);
+
+export const comparable = (value: any) => {
+  if (value instanceof Date) {
+    return value.getTime();
+  } else if (isArray(value)) {
+    return value.map(comparable);
+  } else if (value && typeof value.toJSON === "function") {
+    return value.toJSON();
+  }
+
+  return value;
+};
+
+export const coercePotentiallyNull = (value: any) =>
+  value == null ? null : value;
+
+export const isArray = typeChecker<Array<any>>("Array");
+export const isObject = typeChecker<Object>("Object");
+export const isFunction = typeChecker<Function>("Function");
+export const isProperty = (item: any, key: any) => {
+  return item.hasOwnProperty(key) && !isFunction(item[key]);
+};
+export const isVanillaObject = (value) => {
+  return (
+    value &&
+    (value.constructor === Object ||
+      value.constructor === Array ||
+      value.constructor.toString() === "function Object() { [native code] }" ||
+      value.constructor.toString() === "function Array() { [native code] }") &&
+    !value.toJSON
+  );
+};
+
+export const equals = (a, b) => {
+  if (a == null && a == b) {
+    return true;
+  }
+  if (a === b) {
+    return true;
+  }
+
+  if (Object.prototype.toString.call(a) !== Object.prototype.toString.call(b)) {
+    return false;
+  }
+
+  if (isArray(a)) {
+    if (a.length !== b.length) {
+      return false;
+    }
+    for (let i = 0, { length } = a; i < length; i++) {
+      if (!equals(a[i], b[i])) return false;
+    }
+    return true;
+  } else if (isObject(a)) {
+    if (Object.keys(a).length !== Object.keys(b).length) {
+      return false;
+    }
+    for (const key in a) {
+      if (!equals(a[key], b[key])) return false;
+    }
+    return true;
+  }
+  return false;
+};
diff --git a/backend/node_modules/sparse-bitfield/.npmignore b/backend/node_modules/sparse-bitfield/.npmignore
new file mode 100644
index 0000000..3c3629e
--- /dev/null
+++ b/backend/node_modules/sparse-bitfield/.npmignore
@@ -0,0 +1 @@
+node_modules
diff --git a/backend/node_modules/sparse-bitfield/.travis.yml b/backend/node_modules/sparse-bitfield/.travis.yml
new file mode 100644
index 0000000..c042821
--- /dev/null
+++ b/backend/node_modules/sparse-bitfield/.travis.yml
@@ -0,0 +1,6 @@
+language: node_js
+node_js:
+  - '0.10'
+  - '0.12'
+  - '4.0'
+  - '5.0'
diff --git a/backend/node_modules/sparse-bitfield/LICENSE b/backend/node_modules/sparse-bitfield/LICENSE
new file mode 100644
index 0000000..bae9da7
--- /dev/null
+++ b/backend/node_modules/sparse-bitfield/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 Mathias Buus
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/sparse-bitfield/README.md b/backend/node_modules/sparse-bitfield/README.md
new file mode 100644
index 0000000..7b6b8f9
--- /dev/null
+++ b/backend/node_modules/sparse-bitfield/README.md
@@ -0,0 +1,62 @@
+# sparse-bitfield
+
+Bitfield implementation that allocates a series of 1kb buffers to support sparse bitfields
+without allocating a massive buffer. If you want to simple implementation of a flat bitfield
+see the [bitfield](https://github.com/fb55/bitfield) module.
+
+This module is mostly useful if you need a big bitfield where you won't nessecarily set every bit.
+
+```
+npm install sparse-bitfield
+```
+
+[![build status](http://img.shields.io/travis/mafintosh/sparse-bitfield.svg?style=flat)](http://travis-ci.org/mafintosh/sparse-bitfield)
+
+## Usage
+
+``` js
+var bitfield = require('sparse-bitfield')
+var bits = bitfield()
+
+bits.set(0, true) // set first bit
+bits.set(1, true) // set second bit
+bits.set(1000000000000, true) // set the 1.000.000.000.000th bit
+```
+
+Running the above example will allocate two 1kb buffers internally.
+Each 1kb buffer can hold information about 8192 bits so the first one will be used to store information about the first two bits and the second will be used to store the 1.000.000.000.000th bit.
+
+## API
+
+#### `var bits = bitfield([options])`
+
+Create a new bitfield. Options include
+
+``` js
+{
+  pageSize: 1024, // how big should the partial buffers be
+  buffer: anExistingBitfield,
+  trackUpdates: false // track when pages are being updated in the pager
+}
+```
+
+#### `bits.set(index, value)`
+
+Set a bit to true or false.
+
+#### `bits.get(index)`
+
+Get the value of a bit.
+
+#### `bits.pages`
+
+A [memory-pager](https://github.com/mafintosh/memory-pager) instance that is managing the underlying memory.
+If you set `trackUpdates` to true in the constructor you can use `.lastUpdate()` on this instance to get the last updated memory page.
+
+#### `var buffer = bits.toBuffer()`
+
+Get a single buffer representing the entire bitfield.
+
+## License
+
+MIT
diff --git a/backend/node_modules/sparse-bitfield/index.js b/backend/node_modules/sparse-bitfield/index.js
new file mode 100644
index 0000000..ff458c9
--- /dev/null
+++ b/backend/node_modules/sparse-bitfield/index.js
@@ -0,0 +1,95 @@
+var pager = require('memory-pager')
+
+module.exports = Bitfield
+
+function Bitfield (opts) {
+  if (!(this instanceof Bitfield)) return new Bitfield(opts)
+  if (!opts) opts = {}
+  if (Buffer.isBuffer(opts)) opts = {buffer: opts}
+
+  this.pageOffset = opts.pageOffset || 0
+  this.pageSize = opts.pageSize || 1024
+  this.pages = opts.pages || pager(this.pageSize)
+
+  this.byteLength = this.pages.length * this.pageSize
+  this.length = 8 * this.byteLength
+
+  if (!powerOfTwo(this.pageSize)) throw new Error('The page size should be a power of two')
+
+  this._trackUpdates = !!opts.trackUpdates
+  this._pageMask = this.pageSize - 1
+
+  if (opts.buffer) {
+    for (var i = 0; i < opts.buffer.length; i += this.pageSize) {
+      this.pages.set(i / this.pageSize, opts.buffer.slice(i, i + this.pageSize))
+    }
+    this.byteLength = opts.buffer.length
+    this.length = 8 * this.byteLength
+  }
+}
+
+Bitfield.prototype.get = function (i) {
+  var o = i & 7
+  var j = (i - o) / 8
+
+  return !!(this.getByte(j) & (128 >> o))
+}
+
+Bitfield.prototype.getByte = function (i) {
+  var o = i & this._pageMask
+  var j = (i - o) / this.pageSize
+  var page = this.pages.get(j, true)
+
+  return page ? page.buffer[o + this.pageOffset] : 0
+}
+
+Bitfield.prototype.set = function (i, v) {
+  var o = i & 7
+  var j = (i - o) / 8
+  var b = this.getByte(j)
+
+  return this.setByte(j, v ? b | (128 >> o) : b & (255 ^ (128 >> o)))
+}
+
+Bitfield.prototype.toBuffer = function () {
+  var all = alloc(this.pages.length * this.pageSize)
+
+  for (var i = 0; i < this.pages.length; i++) {
+    var next = this.pages.get(i, true)
+    var allOffset = i * this.pageSize
+    if (next) next.buffer.copy(all, allOffset, this.pageOffset, this.pageOffset + this.pageSize)
+  }
+
+  return all
+}
+
+Bitfield.prototype.setByte = function (i, b) {
+  var o = i & this._pageMask
+  var j = (i - o) / this.pageSize
+  var page = this.pages.get(j, false)
+
+  o += this.pageOffset
+
+  if (page.buffer[o] === b) return false
+  page.buffer[o] = b
+
+  if (i >= this.byteLength) {
+    this.byteLength = i + 1
+    this.length = this.byteLength * 8
+  }
+
+  if (this._trackUpdates) this.pages.updated(page)
+
+  return true
+}
+
+function alloc (n) {
+  if (Buffer.alloc) return Buffer.alloc(n)
+  var b = new Buffer(n)
+  b.fill(0)
+  return b
+}
+
+function powerOfTwo (x) {
+  return !(x & (x - 1))
+}
diff --git a/backend/node_modules/sparse-bitfield/package.json b/backend/node_modules/sparse-bitfield/package.json
new file mode 100644
index 0000000..092a23f
--- /dev/null
+++ b/backend/node_modules/sparse-bitfield/package.json
@@ -0,0 +1,27 @@
+{
+  "name": "sparse-bitfield",
+  "version": "3.0.3",
+  "description": "Bitfield that allocates a series of small buffers to support sparse bits without allocating a massive buffer",
+  "main": "index.js",
+  "dependencies": {
+    "memory-pager": "^1.0.2"
+  },
+  "devDependencies": {
+    "buffer-alloc": "^1.1.0",
+    "standard": "^9.0.0",
+    "tape": "^4.6.3"
+  },
+  "scripts": {
+    "test": "standard && tape test.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/mafintosh/sparse-bitfield.git"
+  },
+  "author": "Mathias Buus (@mafintosh)",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/mafintosh/sparse-bitfield/issues"
+  },
+  "homepage": "https://github.com/mafintosh/sparse-bitfield"
+}
diff --git a/backend/node_modules/sparse-bitfield/test.js b/backend/node_modules/sparse-bitfield/test.js
new file mode 100644
index 0000000..ae42ef4
--- /dev/null
+++ b/backend/node_modules/sparse-bitfield/test.js
@@ -0,0 +1,79 @@
+var alloc = require('buffer-alloc')
+var tape = require('tape')
+var bitfield = require('./')
+
+tape('set and get', function (t) {
+  var bits = bitfield()
+
+  t.same(bits.get(0), false, 'first bit is false')
+  bits.set(0, true)
+  t.same(bits.get(0), true, 'first bit is true')
+  t.same(bits.get(1), false, 'second bit is false')
+  bits.set(0, false)
+  t.same(bits.get(0), false, 'first bit is reset')
+  t.end()
+})
+
+tape('set large and get', function (t) {
+  var bits = bitfield()
+
+  t.same(bits.get(9999999999999), false, 'large bit is false')
+  bits.set(9999999999999, true)
+  t.same(bits.get(9999999999999), true, 'large bit is true')
+  t.same(bits.get(9999999999999 + 1), false, 'large bit + 1 is false')
+  bits.set(9999999999999, false)
+  t.same(bits.get(9999999999999), false, 'large bit is reset')
+  t.end()
+})
+
+tape('get and set buffer', function (t) {
+  var bits = bitfield({trackUpdates: true})
+
+  t.same(bits.pages.get(0, true), undefined)
+  t.same(bits.pages.get(Math.floor(9999999999999 / 8 / 1024), true), undefined)
+  bits.set(9999999999999, true)
+
+  var bits2 = bitfield()
+  var upd = bits.pages.lastUpdate()
+  bits2.pages.set(Math.floor(upd.offset / 1024), upd.buffer)
+  t.same(bits2.get(9999999999999), true, 'bit is set')
+  t.end()
+})
+
+tape('toBuffer', function (t) {
+  var bits = bitfield()
+
+  t.same(bits.toBuffer(), alloc(0))
+
+  bits.set(0, true)
+
+  t.same(bits.toBuffer(), bits.pages.get(0).buffer)
+
+  bits.set(9000, true)
+
+  t.same(bits.toBuffer(), Buffer.concat([bits.pages.get(0).buffer, bits.pages.get(1).buffer]))
+  t.end()
+})
+
+tape('pass in buffer', function (t) {
+  var bits = bitfield()
+
+  bits.set(0, true)
+  bits.set(9000, true)
+
+  var clone = bitfield(bits.toBuffer())
+
+  t.same(clone.get(0), true)
+  t.same(clone.get(9000), true)
+  t.end()
+})
+
+tape('set small buffer', function (t) {
+  var buf = alloc(1)
+  buf[0] = 255
+  var bits = bitfield(buf)
+
+  t.same(bits.get(0), true)
+  t.same(bits.pages.get(0).buffer.length, bits.pageSize)
+  t.end()
+})
diff --git a/backend/node_modules/statuses/HISTORY.md b/backend/node_modules/statuses/HISTORY.md
new file mode 100644
index 0000000..fa4556e
--- /dev/null
+++ b/backend/node_modules/statuses/HISTORY.md
@@ -0,0 +1,82 @@
+2.0.1 / 2021-01-03
+==================
+
+  * Fix returning values from `Object.prototype`
+
+2.0.0 / 2020-04-19
+==================
+
+  * Drop support for Node.js 0.6
+  * Fix messaging casing of `418 I'm a Teapot`
+  * Remove code 306
+  * Remove `status[code]` exports; use `status.message[code]`
+  * Remove `status[msg]` exports; use `status.code[msg]`
+  * Rename `425 Unordered Collection` to standard `425 Too Early`
+  * Rename `STATUS_CODES` export to `message`
+  * Return status message for `statuses(code)` when given code
+
+1.5.0 / 2018-03-27
+==================
+
+  * Add `103 Early Hints`
+
+1.4.0 / 2017-10-20
+==================
+
+  * Add `STATUS_CODES` export
+
+1.3.1 / 2016-11-11
+==================
+
+  * Fix return type in JSDoc
+
+1.3.0 / 2016-05-17
+==================
+
+  * Add `421 Misdirected Request`
+  * perf: enable strict mode
+
+1.2.1 / 2015-02-01
+==================
+
+  * Fix message for status 451
+    - `451 Unavailable For Legal Reasons`
+
+1.2.0 / 2014-09-28
+==================
+
+  * Add `208 Already Repored`
+  * Add `226 IM Used`
+  * Add `306 (Unused)`
+  * Add `415 Unable For Legal Reasons`
+  * Add `508 Loop Detected`
+
+1.1.1 / 2014-09-24
+==================
+
+  * Add missing 308 to `codes.json`
+
+1.1.0 / 2014-09-21
+==================
+
+  * Add `codes.json` for universal support
+
+1.0.4 / 2014-08-20
+==================
+
+  * Package cleanup
+
+1.0.3 / 2014-06-08
+==================
+
+  * Add 308 to `.redirect` category
+
+1.0.2 / 2014-03-13
+==================
+
+  * Add `.retry` category
+
+1.0.1 / 2014-03-12
+==================
+
+  * Initial release
diff --git a/backend/node_modules/statuses/LICENSE b/backend/node_modules/statuses/LICENSE
new file mode 100644
index 0000000..28a3161
--- /dev/null
+++ b/backend/node_modules/statuses/LICENSE
@@ -0,0 +1,23 @@
+
+The MIT License (MIT)
+
+Copyright (c) 2014 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2016 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/statuses/README.md b/backend/node_modules/statuses/README.md
new file mode 100644
index 0000000..57967e6
--- /dev/null
+++ b/backend/node_modules/statuses/README.md
@@ -0,0 +1,136 @@
+# statuses
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][ci-image]][ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+HTTP status utility for node.
+
+This module provides a list of status codes and messages sourced from
+a few different projects:
+
+  * The [IANA Status Code Registry](https://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml)
+  * The [Node.js project](https://nodejs.org/)
+  * The [NGINX project](https://www.nginx.com/)
+  * The [Apache HTTP Server project](https://httpd.apache.org/)
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install statuses
+```
+
+## API
+
+<!-- eslint-disable no-unused-vars -->
+
+```js
+var status = require('statuses')
+```
+
+### status(code)
+
+Returns the status message string for a known HTTP status code. The code
+may be a number or a string. An error is thrown for an unknown status code.
+
+<!-- eslint-disable no-undef -->
+
+```js
+status(403) // => 'Forbidden'
+status('403') // => 'Forbidden'
+status(306) // throws
+```
+
+### status(msg)
+
+Returns the numeric status code for a known HTTP status message. The message
+is case-insensitive. An error is thrown for an unknown status message.
+
+<!-- eslint-disable no-undef -->
+
+```js
+status('forbidden') // => 403
+status('Forbidden') // => 403
+status('foo') // throws
+```
+
+### status.codes
+
+Returns an array of all the status codes as `Integer`s.
+
+### status.code[msg]
+
+Returns the numeric status code for a known status message (in lower-case),
+otherwise `undefined`.
+
+<!-- eslint-disable no-undef, no-unused-expressions -->
+
+```js
+status['not found'] // => 404
+```
+
+### status.empty[code]
+
+Returns `true` if a status code expects an empty body.
+
+<!-- eslint-disable no-undef, no-unused-expressions -->
+
+```js
+status.empty[200] // => undefined
+status.empty[204] // => true
+status.empty[304] // => true
+```
+
+### status.message[code]
+
+Returns the string message for a known numeric status code, otherwise
+`undefined`. This object is the same format as the
+[Node.js http module `http.STATUS_CODES`](https://nodejs.org/dist/latest/docs/api/http.html#http_http_status_codes).
+
+<!-- eslint-disable no-undef, no-unused-expressions -->
+
+```js
+status.message[404] // => 'Not Found'
+```
+
+### status.redirect[code]
+
+Returns `true` if a status code is a valid redirect status.
+
+<!-- eslint-disable no-undef, no-unused-expressions -->
+
+```js
+status.redirect[200] // => undefined
+status.redirect[301] // => true
+```
+
+### status.retry[code]
+
+Returns `true` if you should retry the rest.
+
+<!-- eslint-disable no-undef, no-unused-expressions -->
+
+```js
+status.retry[501] // => undefined
+status.retry[503] // => true
+```
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://badgen.net/github/checks/jshttp/statuses/master?label=ci
+[ci-url]: https://github.com/jshttp/statuses/actions?query=workflow%3Aci
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/statuses/master
+[coveralls-url]: https://coveralls.io/r/jshttp/statuses?branch=master
+[node-version-image]: https://badgen.net/npm/node/statuses
+[node-version-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/statuses
+[npm-url]: https://npmjs.org/package/statuses
+[npm-version-image]: https://badgen.net/npm/v/statuses
diff --git a/backend/node_modules/statuses/codes.json b/backend/node_modules/statuses/codes.json
new file mode 100644
index 0000000..1333ed1
--- /dev/null
+++ b/backend/node_modules/statuses/codes.json
@@ -0,0 +1,65 @@
+{
+  "100": "Continue",
+  "101": "Switching Protocols",
+  "102": "Processing",
+  "103": "Early Hints",
+  "200": "OK",
+  "201": "Created",
+  "202": "Accepted",
+  "203": "Non-Authoritative Information",
+  "204": "No Content",
+  "205": "Reset Content",
+  "206": "Partial Content",
+  "207": "Multi-Status",
+  "208": "Already Reported",
+  "226": "IM Used",
+  "300": "Multiple Choices",
+  "301": "Moved Permanently",
+  "302": "Found",
+  "303": "See Other",
+  "304": "Not Modified",
+  "305": "Use Proxy",
+  "307": "Temporary Redirect",
+  "308": "Permanent Redirect",
+  "400": "Bad Request",
+  "401": "Unauthorized",
+  "402": "Payment Required",
+  "403": "Forbidden",
+  "404": "Not Found",
+  "405": "Method Not Allowed",
+  "406": "Not Acceptable",
+  "407": "Proxy Authentication Required",
+  "408": "Request Timeout",
+  "409": "Conflict",
+  "410": "Gone",
+  "411": "Length Required",
+  "412": "Precondition Failed",
+  "413": "Payload Too Large",
+  "414": "URI Too Long",
+  "415": "Unsupported Media Type",
+  "416": "Range Not Satisfiable",
+  "417": "Expectation Failed",
+  "418": "I'm a Teapot",
+  "421": "Misdirected Request",
+  "422": "Unprocessable Entity",
+  "423": "Locked",
+  "424": "Failed Dependency",
+  "425": "Too Early",
+  "426": "Upgrade Required",
+  "428": "Precondition Required",
+  "429": "Too Many Requests",
+  "431": "Request Header Fields Too Large",
+  "451": "Unavailable For Legal Reasons",
+  "500": "Internal Server Error",
+  "501": "Not Implemented",
+  "502": "Bad Gateway",
+  "503": "Service Unavailable",
+  "504": "Gateway Timeout",
+  "505": "HTTP Version Not Supported",
+  "506": "Variant Also Negotiates",
+  "507": "Insufficient Storage",
+  "508": "Loop Detected",
+  "509": "Bandwidth Limit Exceeded",
+  "510": "Not Extended",
+  "511": "Network Authentication Required"
+}
diff --git a/backend/node_modules/statuses/index.js b/backend/node_modules/statuses/index.js
new file mode 100644
index 0000000..ea351c5
--- /dev/null
+++ b/backend/node_modules/statuses/index.js
@@ -0,0 +1,146 @@
+/*!
+ * statuses
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2016 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var codes = require('./codes.json')
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = status
+
+// status code to message map
+status.message = codes
+
+// status message (lower-case) to code map
+status.code = createMessageToStatusCodeMap(codes)
+
+// array of status codes
+status.codes = createStatusCodeList(codes)
+
+// status codes for redirects
+status.redirect = {
+  300: true,
+  301: true,
+  302: true,
+  303: true,
+  305: true,
+  307: true,
+  308: true
+}
+
+// status codes for empty bodies
+status.empty = {
+  204: true,
+  205: true,
+  304: true
+}
+
+// status codes for when you should retry the request
+status.retry = {
+  502: true,
+  503: true,
+  504: true
+}
+
+/**
+ * Create a map of message to status code.
+ * @private
+ */
+
+function createMessageToStatusCodeMap (codes) {
+  var map = {}
+
+  Object.keys(codes).forEach(function forEachCode (code) {
+    var message = codes[code]
+    var status = Number(code)
+
+    // populate map
+    map[message.toLowerCase()] = status
+  })
+
+  return map
+}
+
+/**
+ * Create a list of all status codes.
+ * @private
+ */
+
+function createStatusCodeList (codes) {
+  return Object.keys(codes).map(function mapCode (code) {
+    return Number(code)
+  })
+}
+
+/**
+ * Get the status code for given message.
+ * @private
+ */
+
+function getStatusCode (message) {
+  var msg = message.toLowerCase()
+
+  if (!Object.prototype.hasOwnProperty.call(status.code, msg)) {
+    throw new Error('invalid status message: "' + message + '"')
+  }
+
+  return status.code[msg]
+}
+
+/**
+ * Get the status message for given code.
+ * @private
+ */
+
+function getStatusMessage (code) {
+  if (!Object.prototype.hasOwnProperty.call(status.message, code)) {
+    throw new Error('invalid status code: ' + code)
+  }
+
+  return status.message[code]
+}
+
+/**
+ * Get the status code.
+ *
+ * Given a number, this will throw if it is not a known status
+ * code, otherwise the code will be returned. Given a string,
+ * the string will be parsed for a number and return the code
+ * if valid, otherwise will lookup the code assuming this is
+ * the status message.
+ *
+ * @param {string|number} code
+ * @returns {number}
+ * @public
+ */
+
+function status (code) {
+  if (typeof code === 'number') {
+    return getStatusMessage(code)
+  }
+
+  if (typeof code !== 'string') {
+    throw new TypeError('code must be a number or string')
+  }
+
+  // '403'
+  var n = parseInt(code, 10)
+  if (!isNaN(n)) {
+    return getStatusMessage(n)
+  }
+
+  return getStatusCode(code)
+}
diff --git a/backend/node_modules/statuses/package.json b/backend/node_modules/statuses/package.json
new file mode 100644
index 0000000..8c3e719
--- /dev/null
+++ b/backend/node_modules/statuses/package.json
@@ -0,0 +1,49 @@
+{
+  "name": "statuses",
+  "description": "HTTP status utility",
+  "version": "2.0.1",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)"
+  ],
+  "repository": "jshttp/statuses",
+  "license": "MIT",
+  "keywords": [
+    "http",
+    "status",
+    "code"
+  ],
+  "files": [
+    "HISTORY.md",
+    "index.js",
+    "codes.json",
+    "LICENSE"
+  ],
+  "devDependencies": {
+    "csv-parse": "4.14.2",
+    "eslint": "7.17.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.22.1",
+    "eslint-plugin-markdown": "1.0.2",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "4.2.1",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "8.2.1",
+    "nyc": "15.1.0",
+    "raw-body": "2.4.1",
+    "stream-to-array": "2.3.0"
+  },
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "build": "node scripts/build.js",
+    "fetch": "node scripts/fetch-apache.js && node scripts/fetch-iana.js && node scripts/fetch-nginx.js && node scripts/fetch-node.js",
+    "lint": "eslint --plugin markdown --ext js,md .",
+    "test": "mocha --reporter spec --check-leaks --bail test/",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "update": "npm run fetch && npm run build",
+    "version": "node scripts/version-history.js && git add HISTORY.md"
+  }
+}
diff --git a/backend/node_modules/streamsearch/.eslintrc.js b/backend/node_modules/streamsearch/.eslintrc.js
new file mode 100644
index 0000000..be9311d
--- /dev/null
+++ b/backend/node_modules/streamsearch/.eslintrc.js
@@ -0,0 +1,5 @@
+'use strict';
+
+module.exports = {
+  extends: '@mscdex/eslint-config',
+};
diff --git a/backend/node_modules/streamsearch/.github/workflows/ci.yml b/backend/node_modules/streamsearch/.github/workflows/ci.yml
new file mode 100644
index 0000000..29d5178
--- /dev/null
+++ b/backend/node_modules/streamsearch/.github/workflows/ci.yml
@@ -0,0 +1,24 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches: [ master ]
+
+jobs:
+  tests-linux:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        node-version: [10.x, 12.x, 14.x, 16.x]
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Install module
+        run: npm install
+      - name: Run tests
+        run: npm test
diff --git a/backend/node_modules/streamsearch/.github/workflows/lint.yml b/backend/node_modules/streamsearch/.github/workflows/lint.yml
new file mode 100644
index 0000000..9f9e1f5
--- /dev/null
+++ b/backend/node_modules/streamsearch/.github/workflows/lint.yml
@@ -0,0 +1,23 @@
+name: lint
+
+on:
+  pull_request:
+  push:
+    branches: [ master ]
+
+env:
+  NODE_VERSION: 16.x
+
+jobs:
+  lint-js:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js ${{ env.NODE_VERSION }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+      - name: Install ESLint + ESLint configs/plugins
+        run: npm install --only=dev
+      - name: Lint files
+        run: npm run lint
diff --git a/backend/node_modules/streamsearch/LICENSE b/backend/node_modules/streamsearch/LICENSE
new file mode 100644
index 0000000..290762e
--- /dev/null
+++ b/backend/node_modules/streamsearch/LICENSE
@@ -0,0 +1,19 @@
+Copyright Brian White. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
\ No newline at end of file
diff --git a/backend/node_modules/streamsearch/README.md b/backend/node_modules/streamsearch/README.md
new file mode 100644
index 0000000..c3934d1
--- /dev/null
+++ b/backend/node_modules/streamsearch/README.md
@@ -0,0 +1,95 @@
+Description
+===========
+
+streamsearch is a module for [node.js](http://nodejs.org/) that allows searching a stream using the Boyer-Moore-Horspool algorithm.
+
+This module is based heavily on the Streaming Boyer-Moore-Horspool C++ implementation by Hongli Lai [here](https://github.com/FooBarWidget/boyer-moore-horspool).
+
+
+Requirements
+============
+
+* [node.js](http://nodejs.org/) -- v10.0.0 or newer
+
+
+Installation
+============
+
+    npm install streamsearch
+
+Example
+=======
+
+```js
+  const { inspect } = require('util');
+
+  const StreamSearch = require('streamsearch');
+
+  const needle = Buffer.from('\r\n');
+  const ss = new StreamSearch(needle, (isMatch, data, start, end) => {
+    if (data)
+      console.log('data: ' + inspect(data.toString('latin1', start, end)));
+    if (isMatch)
+      console.log('match!');
+  });
+
+  const chunks = [
+    'foo',
+    ' bar',
+    '\r',
+    '\n',
+    'baz, hello\r',
+    '\n world.',
+    '\r\n Node.JS rules!!\r\n\r\n',
+  ];
+  for (const chunk of chunks)
+    ss.push(Buffer.from(chunk));
+
+  // output:
+  //
+  // data: 'foo'
+  // data: ' bar'
+  // match!
+  // data: 'baz, hello'
+  // match!
+  // data: ' world.'
+  // match!
+  // data: ' Node.JS rules!!'
+  // match!
+  // data: ''
+  // match!
+```
+
+
+API
+===
+
+Properties
+----------
+
+* **maxMatches** - < _integer_ > - The maximum number of matches. Defaults to `Infinity`.
+
+* **matches** - < _integer_ > - The current match count.
+
+
+Functions
+---------
+
+* **(constructor)**(< _mixed_ >needle, < _function_ >callback) - Creates and returns a new instance for searching for a _Buffer_ or _string_ `needle`. `callback` is called any time there is non-matching data and/or there is a needle match. `callback` will be called with the following arguments:
+
+  1. `isMatch` - _boolean_ - Indicates whether a match has been found
+
+  2. `data` - _mixed_ - If set, this contains data that did not match the needle.
+
+  3. `start` - _integer_ - The index in `data` where the non-matching data begins (inclusive).
+
+  4. `end` - _integer_ - The index in `data` where the non-matching data ends (exclusive).
+
+  5. `isSafeData` - _boolean_ - Indicates if it is safe to store a reference to `data` (e.g. as-is or via `data.slice()`) or not, as in some cases `data` may point to a Buffer whose contents change over time.
+
+* **destroy**() - _(void)_ - Emits any last remaining unmatched data that may still be buffered and then resets internal state.
+
+* **push**(< _Buffer_ >chunk) - _integer_ - Processes `chunk`, searching for a match. The return value is the last processed index in `chunk` + 1.
+
+* **reset**() - _(void)_ - Resets internal state. Useful for when you wish to start searching a new/different stream for example.
+
diff --git a/backend/node_modules/streamsearch/lib/sbmh.js b/backend/node_modules/streamsearch/lib/sbmh.js
new file mode 100644
index 0000000..510cae2
--- /dev/null
+++ b/backend/node_modules/streamsearch/lib/sbmh.js
@@ -0,0 +1,267 @@
+'use strict';
+/*
+  Based heavily on the Streaming Boyer-Moore-Horspool C++ implementation
+  by Hongli Lai at: https://github.com/FooBarWidget/boyer-moore-horspool
+*/
+function memcmp(buf1, pos1, buf2, pos2, num) {
+  for (let i = 0; i < num; ++i) {
+    if (buf1[pos1 + i] !== buf2[pos2 + i])
+      return false;
+  }
+  return true;
+}
+
+class SBMH {
+  constructor(needle, cb) {
+    if (typeof cb !== 'function')
+      throw new Error('Missing match callback');
+
+    if (typeof needle === 'string')
+      needle = Buffer.from(needle);
+    else if (!Buffer.isBuffer(needle))
+      throw new Error(`Expected Buffer for needle, got ${typeof needle}`);
+
+    const needleLen = needle.length;
+
+    this.maxMatches = Infinity;
+    this.matches = 0;
+
+    this._cb = cb;
+    this._lookbehindSize = 0;
+    this._needle = needle;
+    this._bufPos = 0;
+
+    this._lookbehind = Buffer.allocUnsafe(needleLen);
+
+    // Initialize occurrence table.
+    this._occ = [
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen, needleLen, needleLen,
+      needleLen, needleLen, needleLen, needleLen
+    ];
+
+    // Populate occurrence table with analysis of the needle, ignoring the last
+    // letter.
+    if (needleLen > 1) {
+      for (let i = 0; i < needleLen - 1; ++i)
+        this._occ[needle[i]] = needleLen - 1 - i;
+    }
+  }
+
+  reset() {
+    this.matches = 0;
+    this._lookbehindSize = 0;
+    this._bufPos = 0;
+  }
+
+  push(chunk, pos) {
+    let result;
+    if (!Buffer.isBuffer(chunk))
+      chunk = Buffer.from(chunk, 'latin1');
+    const chunkLen = chunk.length;
+    this._bufPos = pos || 0;
+    while (result !== chunkLen && this.matches < this.maxMatches)
+      result = feed(this, chunk);
+    return result;
+  }
+
+  destroy() {
+    const lbSize = this._lookbehindSize;
+    if (lbSize)
+      this._cb(false, this._lookbehind, 0, lbSize, false);
+    this.reset();
+  }
+}
+
+function feed(self, data) {
+  const len = data.length;
+  const needle = self._needle;
+  const needleLen = needle.length;
+
+  // Positive: points to a position in `data`
+  //           pos == 3 points to data[3]
+  // Negative: points to a position in the lookbehind buffer
+  //           pos == -2 points to lookbehind[lookbehindSize - 2]
+  let pos = -self._lookbehindSize;
+  const lastNeedleCharPos = needleLen - 1;
+  const lastNeedleChar = needle[lastNeedleCharPos];
+  const end = len - needleLen;
+  const occ = self._occ;
+  const lookbehind = self._lookbehind;
+
+  if (pos < 0) {
+    // Lookbehind buffer is not empty. Perform Boyer-Moore-Horspool
+    // search with character lookup code that considers both the
+    // lookbehind buffer and the current round's haystack data.
+    //
+    // Loop until
+    //   there is a match.
+    // or until
+    //   we've moved past the position that requires the
+    //   lookbehind buffer. In this case we switch to the
+    //   optimized loop.
+    // or until
+    //   the character to look at lies outside the haystack.
+    while (pos < 0 && pos <= end) {
+      const nextPos = pos + lastNeedleCharPos;
+      const ch = (nextPos < 0
+                  ? lookbehind[self._lookbehindSize + nextPos]
+                  : data[nextPos]);
+
+      if (ch === lastNeedleChar
+          && matchNeedle(self, data, pos, lastNeedleCharPos)) {
+        self._lookbehindSize = 0;
+        ++self.matches;
+        if (pos > -self._lookbehindSize)
+          self._cb(true, lookbehind, 0, self._lookbehindSize + pos, false);
+        else
+          self._cb(true, undefined, 0, 0, true);
+
+        return (self._bufPos = pos + needleLen);
+      }
+
+      pos += occ[ch];
+    }
+
+    // No match.
+
+    // There's too few data for Boyer-Moore-Horspool to run,
+    // so let's use a different algorithm to skip as much as
+    // we can.
+    // Forward pos until
+    //   the trailing part of lookbehind + data
+    //   looks like the beginning of the needle
+    // or until
+    //   pos == 0
+    while (pos < 0 && !matchNeedle(self, data, pos, len - pos))
+      ++pos;
+
+    if (pos < 0) {
+      // Cut off part of the lookbehind buffer that has
+      // been processed and append the entire haystack
+      // into it.
+      const bytesToCutOff = self._lookbehindSize + pos;
+
+      if (bytesToCutOff > 0) {
+        // The cut off data is guaranteed not to contain the needle.
+        self._cb(false, lookbehind, 0, bytesToCutOff, false);
+      }
+
+      self._lookbehindSize -= bytesToCutOff;
+      lookbehind.copy(lookbehind, 0, bytesToCutOff, self._lookbehindSize);
+      lookbehind.set(data, self._lookbehindSize);
+      self._lookbehindSize += len;
+
+      self._bufPos = len;
+      return len;
+    }
+
+    // Discard lookbehind buffer.
+    self._cb(false, lookbehind, 0, self._lookbehindSize, false);
+    self._lookbehindSize = 0;
+  }
+
+  pos += self._bufPos;
+
+  const firstNeedleChar = needle[0];
+
+  // Lookbehind buffer is now empty. Perform Boyer-Moore-Horspool
+  // search with optimized character lookup code that only considers
+  // the current round's haystack data.
+  while (pos <= end) {
+    const ch = data[pos + lastNeedleCharPos];
+
+    if (ch === lastNeedleChar
+        && data[pos] === firstNeedleChar
+        && memcmp(needle, 0, data, pos, lastNeedleCharPos)) {
+      ++self.matches;
+      if (pos > 0)
+        self._cb(true, data, self._bufPos, pos, true);
+      else
+        self._cb(true, undefined, 0, 0, true);
+
+      return (self._bufPos = pos + needleLen);
+    }
+
+    pos += occ[ch];
+  }
+
+  // There was no match. If there's trailing haystack data that we cannot
+  // match yet using the Boyer-Moore-Horspool algorithm (because the trailing
+  // data is less than the needle size) then match using a modified
+  // algorithm that starts matching from the beginning instead of the end.
+  // Whatever trailing data is left after running this algorithm is added to
+  // the lookbehind buffer.
+  while (pos < len) {
+    if (data[pos] !== firstNeedleChar
+        || !memcmp(data, pos, needle, 0, len - pos)) {
+      ++pos;
+      continue;
+    }
+    data.copy(lookbehind, 0, pos, len);
+    self._lookbehindSize = len - pos;
+    break;
+  }
+
+  // Everything until `pos` is guaranteed not to contain needle data.
+  if (pos > 0)
+    self._cb(false, data, self._bufPos, pos < len ? pos : len, true);
+
+  self._bufPos = len;
+  return len;
+}
+
+function matchNeedle(self, data, pos, len) {
+  const lb = self._lookbehind;
+  const lbSize = self._lookbehindSize;
+  const needle = self._needle;
+
+  for (let i = 0; i < len; ++i, ++pos) {
+    const ch = (pos < 0 ? lb[lbSize + pos] : data[pos]);
+    if (ch !== needle[i])
+      return false;
+  }
+  return true;
+}
+
+module.exports = SBMH;
diff --git a/backend/node_modules/streamsearch/package.json b/backend/node_modules/streamsearch/package.json
new file mode 100644
index 0000000..51df8f9
--- /dev/null
+++ b/backend/node_modules/streamsearch/package.json
@@ -0,0 +1,34 @@
+{
+  "name": "streamsearch",
+  "version": "1.1.0",
+  "author": "Brian White <mscdex@mscdex.net>",
+  "description": "Streaming Boyer-Moore-Horspool searching for node.js",
+  "main": "./lib/sbmh.js",
+  "engines": {
+    "node": ">=10.0.0"
+  },
+  "devDependencies": {
+    "@mscdex/eslint-config": "^1.1.0",
+    "eslint": "^7.32.0"
+  },
+  "scripts": {
+    "test": "node test/test.js",
+    "lint": "eslint --cache --report-unused-disable-directives --ext=.js .eslintrc.js lib test",
+    "lint:fix": "npm run lint -- --fix"
+  },
+  "keywords": [
+    "stream",
+    "horspool",
+    "boyer-moore-horspool",
+    "boyer-moore",
+    "search"
+  ],
+  "licenses": [{
+    "type": "MIT",
+    "url": "http://github.com/mscdex/streamsearch/raw/master/LICENSE"
+  }],
+  "repository": {
+    "type": "git",
+    "url": "http://github.com/mscdex/streamsearch.git"
+  }
+}
diff --git a/backend/node_modules/streamsearch/test/test.js b/backend/node_modules/streamsearch/test/test.js
new file mode 100644
index 0000000..39a04d7
--- /dev/null
+++ b/backend/node_modules/streamsearch/test/test.js
@@ -0,0 +1,70 @@
+'use strict';
+
+const assert = require('assert');
+
+const StreamSearch = require('../lib/sbmh.js');
+
+[
+  {
+    needle: '\r\n',
+    chunks: [
+      'foo',
+      ' bar',
+      '\r',
+      '\n',
+      'baz, hello\r',
+      '\n world.',
+      '\r\n Node.JS rules!!\r\n\r\n',
+    ],
+    expect: [
+      [false, 'foo'],
+      [false, ' bar'],
+      [ true, null],
+      [false, 'baz, hello'],
+      [ true, null],
+      [false, ' world.'],
+      [ true, null],
+      [ true, ' Node.JS rules!!'],
+      [ true, ''],
+    ],
+  },
+  {
+    needle: '---foobarbaz',
+    chunks: [
+      '---foobarbaz',
+      'asdf',
+      '\r\n',
+      '---foobarba',
+      '---foobar',
+      'ba',
+      '\r\n---foobarbaz--\r\n',
+    ],
+    expect: [
+      [ true, null],
+      [false, 'asdf'],
+      [false, '\r\n'],
+      [false, '---foobarba'],
+      [false, '---foobarba'],
+      [ true, '\r\n'],
+      [false, '--\r\n'],
+    ],
+  },
+].forEach((test, i) => {
+  console.log(`Running test #${i + 1}`);
+  const { needle, chunks, expect } = test;
+
+  const results = [];
+  const ss = new StreamSearch(Buffer.from(needle),
+                              (isMatch, data, start, end) => {
+    if (data)
+      data = data.toString('latin1', start, end);
+    else
+      data = null;
+    results.push([isMatch, data]);
+  });
+
+  for (const chunk of chunks)
+    ss.push(Buffer.from(chunk));
+
+  assert.deepStrictEqual(results, expect);
+});
diff --git a/backend/node_modules/string_decoder/.travis.yml b/backend/node_modules/string_decoder/.travis.yml
new file mode 100644
index 0000000..3347a72
--- /dev/null
+++ b/backend/node_modules/string_decoder/.travis.yml
@@ -0,0 +1,50 @@
+sudo: false
+language: node_js
+before_install:
+  - npm install -g npm@2
+  - test $NPM_LEGACY && npm install -g npm@latest-3 || npm install npm -g
+notifications:
+  email: false
+matrix:
+  fast_finish: true
+  include:
+  - node_js: '0.8'
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: '0.10'
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: '0.11'
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: '0.12'
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: 1
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: 2
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: 3
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: 4
+    env: TASK=test
+  - node_js: 5
+    env: TASK=test
+  - node_js: 6
+    env: TASK=test
+  - node_js: 7
+    env: TASK=test
+  - node_js: 8
+    env: TASK=test
+  - node_js: 9
+    env: TASK=test
diff --git a/backend/node_modules/string_decoder/LICENSE b/backend/node_modules/string_decoder/LICENSE
new file mode 100644
index 0000000..778edb2
--- /dev/null
+++ b/backend/node_modules/string_decoder/LICENSE
@@ -0,0 +1,48 @@
+Node.js is licensed for use as follows:
+
+"""
+Copyright Node.js contributors. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
+"""
+
+This license applies to parts of Node.js originating from the
+https://github.com/joyent/node repository:
+
+"""
+Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
+"""
+
diff --git a/backend/node_modules/string_decoder/README.md b/backend/node_modules/string_decoder/README.md
new file mode 100644
index 0000000..5fd5831
--- /dev/null
+++ b/backend/node_modules/string_decoder/README.md
@@ -0,0 +1,47 @@
+# string_decoder
+
+***Node-core v8.9.4 string_decoder for userland***
+
+
+[![NPM](https://nodei.co/npm/string_decoder.png?downloads=true&downloadRank=true)](https://nodei.co/npm/string_decoder/)
+[![NPM](https://nodei.co/npm-dl/string_decoder.png?&months=6&height=3)](https://nodei.co/npm/string_decoder/)
+
+
+```bash
+npm install --save string_decoder
+```
+
+***Node-core string_decoder for userland***
+
+This package is a mirror of the string_decoder implementation in Node-core.
+
+Full documentation may be found on the [Node.js website](https://nodejs.org/dist/v8.9.4/docs/api/).
+
+As of version 1.0.0 **string_decoder** uses semantic versioning.
+
+## Previous versions
+
+Previous version numbers match the versions found in Node core, e.g. 0.10.24 matches Node 0.10.24, likewise 0.11.10 matches Node 0.11.10.
+
+## Update
+
+The *build/* directory contains a build script that will scrape the source from the [nodejs/node](https://github.com/nodejs/node) repo given a specific Node version.
+
+## Streams Working Group
+
+`string_decoder` is maintained by the Streams Working Group, which
+oversees the development and maintenance of the Streams API within
+Node.js. The responsibilities of the Streams Working Group include:
+
+* Addressing stream issues on the Node.js issue tracker.
+* Authoring and editing stream documentation within the Node.js project.
+* Reviewing changes to stream subclasses within the Node.js project.
+* Redirecting changes to streams from the Node.js project to this
+  project.
+* Assisting in the implementation of stream providers within Node.js.
+* Recommending versions of `readable-stream` to be included in Node.js.
+* Messaging about the future of streams to give the community advance
+  notice of changes.
+
+See [readable-stream](https://github.com/nodejs/readable-stream) for
+more details.
diff --git a/backend/node_modules/string_decoder/lib/string_decoder.js b/backend/node_modules/string_decoder/lib/string_decoder.js
new file mode 100644
index 0000000..2e89e63
--- /dev/null
+++ b/backend/node_modules/string_decoder/lib/string_decoder.js
@@ -0,0 +1,296 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+'use strict';
+
+/*<replacement>*/
+
+var Buffer = require('safe-buffer').Buffer;
+/*</replacement>*/
+
+var isEncoding = Buffer.isEncoding || function (encoding) {
+  encoding = '' + encoding;
+  switch (encoding && encoding.toLowerCase()) {
+    case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw':
+      return true;
+    default:
+      return false;
+  }
+};
+
+function _normalizeEncoding(enc) {
+  if (!enc) return 'utf8';
+  var retried;
+  while (true) {
+    switch (enc) {
+      case 'utf8':
+      case 'utf-8':
+        return 'utf8';
+      case 'ucs2':
+      case 'ucs-2':
+      case 'utf16le':
+      case 'utf-16le':
+        return 'utf16le';
+      case 'latin1':
+      case 'binary':
+        return 'latin1';
+      case 'base64':
+      case 'ascii':
+      case 'hex':
+        return enc;
+      default:
+        if (retried) return; // undefined
+        enc = ('' + enc).toLowerCase();
+        retried = true;
+    }
+  }
+};
+
+// Do not cache `Buffer.isEncoding` when checking encoding names as some
+// modules monkey-patch it to support additional encodings
+function normalizeEncoding(enc) {
+  var nenc = _normalizeEncoding(enc);
+  if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc);
+  return nenc || enc;
+}
+
+// StringDecoder provides an interface for efficiently splitting a series of
+// buffers into a series of JS strings without breaking apart multi-byte
+// characters.
+exports.StringDecoder = StringDecoder;
+function StringDecoder(encoding) {
+  this.encoding = normalizeEncoding(encoding);
+  var nb;
+  switch (this.encoding) {
+    case 'utf16le':
+      this.text = utf16Text;
+      this.end = utf16End;
+      nb = 4;
+      break;
+    case 'utf8':
+      this.fillLast = utf8FillLast;
+      nb = 4;
+      break;
+    case 'base64':
+      this.text = base64Text;
+      this.end = base64End;
+      nb = 3;
+      break;
+    default:
+      this.write = simpleWrite;
+      this.end = simpleEnd;
+      return;
+  }
+  this.lastNeed = 0;
+  this.lastTotal = 0;
+  this.lastChar = Buffer.allocUnsafe(nb);
+}
+
+StringDecoder.prototype.write = function (buf) {
+  if (buf.length === 0) return '';
+  var r;
+  var i;
+  if (this.lastNeed) {
+    r = this.fillLast(buf);
+    if (r === undefined) return '';
+    i = this.lastNeed;
+    this.lastNeed = 0;
+  } else {
+    i = 0;
+  }
+  if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i);
+  return r || '';
+};
+
+StringDecoder.prototype.end = utf8End;
+
+// Returns only complete characters in a Buffer
+StringDecoder.prototype.text = utf8Text;
+
+// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer
+StringDecoder.prototype.fillLast = function (buf) {
+  if (this.lastNeed <= buf.length) {
+    buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed);
+    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
+  }
+  buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length);
+  this.lastNeed -= buf.length;
+};
+
+// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a
+// continuation byte. If an invalid byte is detected, -2 is returned.
+function utf8CheckByte(byte) {
+  if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4;
+  return byte >> 6 === 0x02 ? -1 : -2;
+}
+
+// Checks at most 3 bytes at the end of a Buffer in order to detect an
+// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)
+// needed to complete the UTF-8 character (if applicable) are returned.
+function utf8CheckIncomplete(self, buf, i) {
+  var j = buf.length - 1;
+  if (j < i) return 0;
+  var nb = utf8CheckByte(buf[j]);
+  if (nb >= 0) {
+    if (nb > 0) self.lastNeed = nb - 1;
+    return nb;
+  }
+  if (--j < i || nb === -2) return 0;
+  nb = utf8CheckByte(buf[j]);
+  if (nb >= 0) {
+    if (nb > 0) self.lastNeed = nb - 2;
+    return nb;
+  }
+  if (--j < i || nb === -2) return 0;
+  nb = utf8CheckByte(buf[j]);
+  if (nb >= 0) {
+    if (nb > 0) {
+      if (nb === 2) nb = 0;else self.lastNeed = nb - 3;
+    }
+    return nb;
+  }
+  return 0;
+}
+
+// Validates as many continuation bytes for a multi-byte UTF-8 character as
+// needed or are available. If we see a non-continuation byte where we expect
+// one, we "replace" the validated continuation bytes we've seen so far with
+// a single UTF-8 replacement character ('\ufffd'), to match v8's UTF-8 decoding
+// behavior. The continuation byte check is included three times in the case
+// where all of the continuation bytes for a character exist in the same buffer.
+// It is also done this way as a slight performance increase instead of using a
+// loop.
+function utf8CheckExtraBytes(self, buf, p) {
+  if ((buf[0] & 0xC0) !== 0x80) {
+    self.lastNeed = 0;
+    return '\ufffd';
+  }
+  if (self.lastNeed > 1 && buf.length > 1) {
+    if ((buf[1] & 0xC0) !== 0x80) {
+      self.lastNeed = 1;
+      return '\ufffd';
+    }
+    if (self.lastNeed > 2 && buf.length > 2) {
+      if ((buf[2] & 0xC0) !== 0x80) {
+        self.lastNeed = 2;
+        return '\ufffd';
+      }
+    }
+  }
+}
+
+// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.
+function utf8FillLast(buf) {
+  var p = this.lastTotal - this.lastNeed;
+  var r = utf8CheckExtraBytes(this, buf, p);
+  if (r !== undefined) return r;
+  if (this.lastNeed <= buf.length) {
+    buf.copy(this.lastChar, p, 0, this.lastNeed);
+    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
+  }
+  buf.copy(this.lastChar, p, 0, buf.length);
+  this.lastNeed -= buf.length;
+}
+
+// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a
+// partial character, the character's bytes are buffered until the required
+// number of bytes are available.
+function utf8Text(buf, i) {
+  var total = utf8CheckIncomplete(this, buf, i);
+  if (!this.lastNeed) return buf.toString('utf8', i);
+  this.lastTotal = total;
+  var end = buf.length - (total - this.lastNeed);
+  buf.copy(this.lastChar, 0, end);
+  return buf.toString('utf8', i, end);
+}
+
+// For UTF-8, a replacement character is added when ending on a partial
+// character.
+function utf8End(buf) {
+  var r = buf && buf.length ? this.write(buf) : '';
+  if (this.lastNeed) return r + '\ufffd';
+  return r;
+}
+
+// UTF-16LE typically needs two bytes per character, but even if we have an even
+// number of bytes available, we need to check if we end on a leading/high
+// surrogate. In that case, we need to wait for the next two bytes in order to
+// decode the last character properly.
+function utf16Text(buf, i) {
+  if ((buf.length - i) % 2 === 0) {
+    var r = buf.toString('utf16le', i);
+    if (r) {
+      var c = r.charCodeAt(r.length - 1);
+      if (c >= 0xD800 && c <= 0xDBFF) {
+        this.lastNeed = 2;
+        this.lastTotal = 4;
+        this.lastChar[0] = buf[buf.length - 2];
+        this.lastChar[1] = buf[buf.length - 1];
+        return r.slice(0, -1);
+      }
+    }
+    return r;
+  }
+  this.lastNeed = 1;
+  this.lastTotal = 2;
+  this.lastChar[0] = buf[buf.length - 1];
+  return buf.toString('utf16le', i, buf.length - 1);
+}
+
+// For UTF-16LE we do not explicitly append special replacement characters if we
+// end on a partial character, we simply let v8 handle that.
+function utf16End(buf) {
+  var r = buf && buf.length ? this.write(buf) : '';
+  if (this.lastNeed) {
+    var end = this.lastTotal - this.lastNeed;
+    return r + this.lastChar.toString('utf16le', 0, end);
+  }
+  return r;
+}
+
+function base64Text(buf, i) {
+  var n = (buf.length - i) % 3;
+  if (n === 0) return buf.toString('base64', i);
+  this.lastNeed = 3 - n;
+  this.lastTotal = 3;
+  if (n === 1) {
+    this.lastChar[0] = buf[buf.length - 1];
+  } else {
+    this.lastChar[0] = buf[buf.length - 2];
+    this.lastChar[1] = buf[buf.length - 1];
+  }
+  return buf.toString('base64', i, buf.length - n);
+}
+
+function base64End(buf) {
+  var r = buf && buf.length ? this.write(buf) : '';
+  if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);
+  return r;
+}
+
+// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)
+function simpleWrite(buf) {
+  return buf.toString(this.encoding);
+}
+
+function simpleEnd(buf) {
+  return buf && buf.length ? this.write(buf) : '';
+}
\ No newline at end of file
diff --git a/backend/node_modules/string_decoder/node_modules/safe-buffer/LICENSE b/backend/node_modules/string_decoder/node_modules/safe-buffer/LICENSE
new file mode 100644
index 0000000..0c068ce
--- /dev/null
+++ b/backend/node_modules/string_decoder/node_modules/safe-buffer/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Feross Aboukhadijeh
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/string_decoder/node_modules/safe-buffer/README.md b/backend/node_modules/string_decoder/node_modules/safe-buffer/README.md
new file mode 100644
index 0000000..e9a81af
--- /dev/null
+++ b/backend/node_modules/string_decoder/node_modules/safe-buffer/README.md
@@ -0,0 +1,584 @@
+# safe-buffer [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][downloads-url] [![javascript style guide][standard-image]][standard-url]
+
+[travis-image]: https://img.shields.io/travis/feross/safe-buffer/master.svg
+[travis-url]: https://travis-ci.org/feross/safe-buffer
+[npm-image]: https://img.shields.io/npm/v/safe-buffer.svg
+[npm-url]: https://npmjs.org/package/safe-buffer
+[downloads-image]: https://img.shields.io/npm/dm/safe-buffer.svg
+[downloads-url]: https://npmjs.org/package/safe-buffer
+[standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg
+[standard-url]: https://standardjs.com
+
+#### Safer Node.js Buffer API
+
+**Use the new Node.js Buffer APIs (`Buffer.from`, `Buffer.alloc`,
+`Buffer.allocUnsafe`, `Buffer.allocUnsafeSlow`) in all versions of Node.js.**
+
+**Uses the built-in implementation when available.**
+
+## install
+
+```
+npm install safe-buffer
+```
+
+## usage
+
+The goal of this package is to provide a safe replacement for the node.js `Buffer`.
+
+It's a drop-in replacement for `Buffer`. You can use it by adding one `require` line to
+the top of your node.js modules:
+
+```js
+var Buffer = require('safe-buffer').Buffer
+
+// Existing buffer code will continue to work without issues:
+
+new Buffer('hey', 'utf8')
+new Buffer([1, 2, 3], 'utf8')
+new Buffer(obj)
+new Buffer(16) // create an uninitialized buffer (potentially unsafe)
+
+// But you can use these new explicit APIs to make clear what you want:
+
+Buffer.from('hey', 'utf8') // convert from many types to a Buffer
+Buffer.alloc(16) // create a zero-filled buffer (safe)
+Buffer.allocUnsafe(16) // create an uninitialized buffer (potentially unsafe)
+```
+
+## api
+
+### Class Method: Buffer.from(array)
+<!-- YAML
+added: v3.0.0
+-->
+
+* `array` {Array}
+
+Allocates a new `Buffer` using an `array` of octets.
+
+```js
+const buf = Buffer.from([0x62,0x75,0x66,0x66,0x65,0x72]);
+  // creates a new Buffer containing ASCII bytes
+  // ['b','u','f','f','e','r']
+```
+
+A `TypeError` will be thrown if `array` is not an `Array`.
+
+### Class Method: Buffer.from(arrayBuffer[, byteOffset[, length]])
+<!-- YAML
+added: v5.10.0
+-->
+
+* `arrayBuffer` {ArrayBuffer} The `.buffer` property of a `TypedArray` or
+  a `new ArrayBuffer()`
+* `byteOffset` {Number} Default: `0`
+* `length` {Number} Default: `arrayBuffer.length - byteOffset`
+
+When passed a reference to the `.buffer` property of a `TypedArray` instance,
+the newly created `Buffer` will share the same allocated memory as the
+TypedArray.
+
+```js
+const arr = new Uint16Array(2);
+arr[0] = 5000;
+arr[1] = 4000;
+
+const buf = Buffer.from(arr.buffer); // shares the memory with arr;
+
+console.log(buf);
+  // Prints: <Buffer 88 13 a0 0f>
+
+// changing the TypedArray changes the Buffer also
+arr[1] = 6000;
+
+console.log(buf);
+  // Prints: <Buffer 88 13 70 17>
+```
+
+The optional `byteOffset` and `length` arguments specify a memory range within
+the `arrayBuffer` that will be shared by the `Buffer`.
+
+```js
+const ab = new ArrayBuffer(10);
+const buf = Buffer.from(ab, 0, 2);
+console.log(buf.length);
+  // Prints: 2
+```
+
+A `TypeError` will be thrown if `arrayBuffer` is not an `ArrayBuffer`.
+
+### Class Method: Buffer.from(buffer)
+<!-- YAML
+added: v3.0.0
+-->
+
+* `buffer` {Buffer}
+
+Copies the passed `buffer` data onto a new `Buffer` instance.
+
+```js
+const buf1 = Buffer.from('buffer');
+const buf2 = Buffer.from(buf1);
+
+buf1[0] = 0x61;
+console.log(buf1.toString());
+  // 'auffer'
+console.log(buf2.toString());
+  // 'buffer' (copy is not changed)
+```
+
+A `TypeError` will be thrown if `buffer` is not a `Buffer`.
+
+### Class Method: Buffer.from(str[, encoding])
+<!-- YAML
+added: v5.10.0
+-->
+
+* `str` {String} String to encode.
+* `encoding` {String} Encoding to use, Default: `'utf8'`
+
+Creates a new `Buffer` containing the given JavaScript string `str`. If
+provided, the `encoding` parameter identifies the character encoding.
+If not provided, `encoding` defaults to `'utf8'`.
+
+```js
+const buf1 = Buffer.from('this is a tést');
+console.log(buf1.toString());
+  // prints: this is a tést
+console.log(buf1.toString('ascii'));
+  // prints: this is a tC)st
+
+const buf2 = Buffer.from('7468697320697320612074c3a97374', 'hex');
+console.log(buf2.toString());
+  // prints: this is a tést
+```
+
+A `TypeError` will be thrown if `str` is not a string.
+
+### Class Method: Buffer.alloc(size[, fill[, encoding]])
+<!-- YAML
+added: v5.10.0
+-->
+
+* `size` {Number}
+* `fill` {Value} Default: `undefined`
+* `encoding` {String} Default: `utf8`
+
+Allocates a new `Buffer` of `size` bytes. If `fill` is `undefined`, the
+`Buffer` will be *zero-filled*.
+
+```js
+const buf = Buffer.alloc(5);
+console.log(buf);
+  // <Buffer 00 00 00 00 00>
+```
+
+The `size` must be less than or equal to the value of
+`require('buffer').kMaxLength` (on 64-bit architectures, `kMaxLength` is
+`(2^31)-1`). Otherwise, a [`RangeError`][] is thrown. A zero-length Buffer will
+be created if a `size` less than or equal to 0 is specified.
+
+If `fill` is specified, the allocated `Buffer` will be initialized by calling
+`buf.fill(fill)`. See [`buf.fill()`][] for more information.
+
+```js
+const buf = Buffer.alloc(5, 'a');
+console.log(buf);
+  // <Buffer 61 61 61 61 61>
+```
+
+If both `fill` and `encoding` are specified, the allocated `Buffer` will be
+initialized by calling `buf.fill(fill, encoding)`. For example:
+
+```js
+const buf = Buffer.alloc(11, 'aGVsbG8gd29ybGQ=', 'base64');
+console.log(buf);
+  // <Buffer 68 65 6c 6c 6f 20 77 6f 72 6c 64>
+```
+
+Calling `Buffer.alloc(size)` can be significantly slower than the alternative
+`Buffer.allocUnsafe(size)` but ensures that the newly created `Buffer` instance
+contents will *never contain sensitive data*.
+
+A `TypeError` will be thrown if `size` is not a number.
+
+### Class Method: Buffer.allocUnsafe(size)
+<!-- YAML
+added: v5.10.0
+-->
+
+* `size` {Number}
+
+Allocates a new *non-zero-filled* `Buffer` of `size` bytes.  The `size` must
+be less than or equal to the value of `require('buffer').kMaxLength` (on 64-bit
+architectures, `kMaxLength` is `(2^31)-1`). Otherwise, a [`RangeError`][] is
+thrown. A zero-length Buffer will be created if a `size` less than or equal to
+0 is specified.
+
+The underlying memory for `Buffer` instances created in this way is *not
+initialized*. The contents of the newly created `Buffer` are unknown and
+*may contain sensitive data*. Use [`buf.fill(0)`][] to initialize such
+`Buffer` instances to zeroes.
+
+```js
+const buf = Buffer.allocUnsafe(5);
+console.log(buf);
+  // <Buffer 78 e0 82 02 01>
+  // (octets will be different, every time)
+buf.fill(0);
+console.log(buf);
+  // <Buffer 00 00 00 00 00>
+```
+
+A `TypeError` will be thrown if `size` is not a number.
+
+Note that the `Buffer` module pre-allocates an internal `Buffer` instance of
+size `Buffer.poolSize` that is used as a pool for the fast allocation of new
+`Buffer` instances created using `Buffer.allocUnsafe(size)` (and the deprecated
+`new Buffer(size)` constructor) only when `size` is less than or equal to
+`Buffer.poolSize >> 1` (floor of `Buffer.poolSize` divided by two). The default
+value of `Buffer.poolSize` is `8192` but can be modified.
+
+Use of this pre-allocated internal memory pool is a key difference between
+calling `Buffer.alloc(size, fill)` vs. `Buffer.allocUnsafe(size).fill(fill)`.
+Specifically, `Buffer.alloc(size, fill)` will *never* use the internal Buffer
+pool, while `Buffer.allocUnsafe(size).fill(fill)` *will* use the internal
+Buffer pool if `size` is less than or equal to half `Buffer.poolSize`. The
+difference is subtle but can be important when an application requires the
+additional performance that `Buffer.allocUnsafe(size)` provides.
+
+### Class Method: Buffer.allocUnsafeSlow(size)
+<!-- YAML
+added: v5.10.0
+-->
+
+* `size` {Number}
+
+Allocates a new *non-zero-filled* and non-pooled `Buffer` of `size` bytes.  The
+`size` must be less than or equal to the value of
+`require('buffer').kMaxLength` (on 64-bit architectures, `kMaxLength` is
+`(2^31)-1`). Otherwise, a [`RangeError`][] is thrown. A zero-length Buffer will
+be created if a `size` less than or equal to 0 is specified.
+
+The underlying memory for `Buffer` instances created in this way is *not
+initialized*. The contents of the newly created `Buffer` are unknown and
+*may contain sensitive data*. Use [`buf.fill(0)`][] to initialize such
+`Buffer` instances to zeroes.
+
+When using `Buffer.allocUnsafe()` to allocate new `Buffer` instances,
+allocations under 4KB are, by default, sliced from a single pre-allocated
+`Buffer`. This allows applications to avoid the garbage collection overhead of
+creating many individually allocated Buffers. This approach improves both
+performance and memory usage by eliminating the need to track and cleanup as
+many `Persistent` objects.
+
+However, in the case where a developer may need to retain a small chunk of
+memory from a pool for an indeterminate amount of time, it may be appropriate
+to create an un-pooled Buffer instance using `Buffer.allocUnsafeSlow()` then
+copy out the relevant bits.
+
+```js
+// need to keep around a few small chunks of memory
+const store = [];
+
+socket.on('readable', () => {
+  const data = socket.read();
+  // allocate for retained data
+  const sb = Buffer.allocUnsafeSlow(10);
+  // copy the data into the new allocation
+  data.copy(sb, 0, 0, 10);
+  store.push(sb);
+});
+```
+
+Use of `Buffer.allocUnsafeSlow()` should be used only as a last resort *after*
+a developer has observed undue memory retention in their applications.
+
+A `TypeError` will be thrown if `size` is not a number.
+
+### All the Rest
+
+The rest of the `Buffer` API is exactly the same as in node.js.
+[See the docs](https://nodejs.org/api/buffer.html).
+
+
+## Related links
+
+- [Node.js issue: Buffer(number) is unsafe](https://github.com/nodejs/node/issues/4660)
+- [Node.js Enhancement Proposal: Buffer.from/Buffer.alloc/Buffer.zalloc/Buffer() soft-deprecate](https://github.com/nodejs/node-eps/pull/4)
+
+## Why is `Buffer` unsafe?
+
+Today, the node.js `Buffer` constructor is overloaded to handle many different argument
+types like `String`, `Array`, `Object`, `TypedArrayView` (`Uint8Array`, etc.),
+`ArrayBuffer`, and also `Number`.
+
+The API is optimized for convenience: you can throw any type at it, and it will try to do
+what you want.
+
+Because the Buffer constructor is so powerful, you often see code like this:
+
+```js
+// Convert UTF-8 strings to hex
+function toHex (str) {
+  return new Buffer(str).toString('hex')
+}
+```
+
+***But what happens if `toHex` is called with a `Number` argument?***
+
+### Remote Memory Disclosure
+
+If an attacker can make your program call the `Buffer` constructor with a `Number`
+argument, then they can make it allocate uninitialized memory from the node.js process.
+This could potentially disclose TLS private keys, user data, or database passwords.
+
+When the `Buffer` constructor is passed a `Number` argument, it returns an
+**UNINITIALIZED** block of memory of the specified `size`. When you create a `Buffer` like
+this, you **MUST** overwrite the contents before returning it to the user.
+
+From the [node.js docs](https://nodejs.org/api/buffer.html#buffer_new_buffer_size):
+
+> `new Buffer(size)`
+>
+> - `size` Number
+>
+> The underlying memory for `Buffer` instances created in this way is not initialized.
+> **The contents of a newly created `Buffer` are unknown and could contain sensitive
+> data.** Use `buf.fill(0)` to initialize a Buffer to zeroes.
+
+(Emphasis our own.)
+
+Whenever the programmer intended to create an uninitialized `Buffer` you often see code
+like this:
+
+```js
+var buf = new Buffer(16)
+
+// Immediately overwrite the uninitialized buffer with data from another buffer
+for (var i = 0; i < buf.length; i++) {
+  buf[i] = otherBuf[i]
+}
+```
+
+
+### Would this ever be a problem in real code?
+
+Yes. It's surprisingly common to forget to check the type of your variables in a
+dynamically-typed language like JavaScript.
+
+Usually the consequences of assuming the wrong type is that your program crashes with an
+uncaught exception. But the failure mode for forgetting to check the type of arguments to
+the `Buffer` constructor is more catastrophic.
+
+Here's an example of a vulnerable service that takes a JSON payload and converts it to
+hex:
+
+```js
+// Take a JSON payload {str: "some string"} and convert it to hex
+var server = http.createServer(function (req, res) {
+  var data = ''
+  req.setEncoding('utf8')
+  req.on('data', function (chunk) {
+    data += chunk
+  })
+  req.on('end', function () {
+    var body = JSON.parse(data)
+    res.end(new Buffer(body.str).toString('hex'))
+  })
+})
+
+server.listen(8080)
+```
+
+In this example, an http client just has to send:
+
+```json
+{
+  "str": 1000
+}
+```
+
+and it will get back 1,000 bytes of uninitialized memory from the server.
+
+This is a very serious bug. It's similar in severity to the
+[the Heartbleed bug](http://heartbleed.com/) that allowed disclosure of OpenSSL process
+memory by remote attackers.
+
+
+### Which real-world packages were vulnerable?
+
+#### [`bittorrent-dht`](https://www.npmjs.com/package/bittorrent-dht)
+
+[Mathias Buus](https://github.com/mafintosh) and I
+([Feross Aboukhadijeh](http://feross.org/)) found this issue in one of our own packages,
+[`bittorrent-dht`](https://www.npmjs.com/package/bittorrent-dht). The bug would allow
+anyone on the internet to send a series of messages to a user of `bittorrent-dht` and get
+them to reveal 20 bytes at a time of uninitialized memory from the node.js process.
+
+Here's
+[the commit](https://github.com/feross/bittorrent-dht/commit/6c7da04025d5633699800a99ec3fbadf70ad35b8)
+that fixed it. We released a new fixed version, created a
+[Node Security Project disclosure](https://nodesecurity.io/advisories/68), and deprecated all
+vulnerable versions on npm so users will get a warning to upgrade to a newer version.
+
+#### [`ws`](https://www.npmjs.com/package/ws)
+
+That got us wondering if there were other vulnerable packages. Sure enough, within a short
+period of time, we found the same issue in [`ws`](https://www.npmjs.com/package/ws), the
+most popular WebSocket implementation in node.js.
+
+If certain APIs were called with `Number` parameters instead of `String` or `Buffer` as
+expected, then uninitialized server memory would be disclosed to the remote peer.
+
+These were the vulnerable methods:
+
+```js
+socket.send(number)
+socket.ping(number)
+socket.pong(number)
+```
+
+Here's a vulnerable socket server with some echo functionality:
+
+```js
+server.on('connection', function (socket) {
+  socket.on('message', function (message) {
+    message = JSON.parse(message)
+    if (message.type === 'echo') {
+      socket.send(message.data) // send back the user's message
+    }
+  })
+})
+```
+
+`socket.send(number)` called on the server, will disclose server memory.
+
+Here's [the release](https://github.com/websockets/ws/releases/tag/1.0.1) where the issue
+was fixed, with a more detailed explanation. Props to
+[Arnout Kazemier](https://github.com/3rd-Eden) for the quick fix. Here's the
+[Node Security Project disclosure](https://nodesecurity.io/advisories/67).
+
+
+### What's the solution?
+
+It's important that node.js offers a fast way to get memory otherwise performance-critical
+applications would needlessly get a lot slower.
+
+But we need a better way to *signal our intent* as programmers. **When we want
+uninitialized memory, we should request it explicitly.**
+
+Sensitive functionality should not be packed into a developer-friendly API that loosely
+accepts many different types. This type of API encourages the lazy practice of passing
+variables in without checking the type very carefully.
+
+#### A new API: `Buffer.allocUnsafe(number)`
+
+The functionality of creating buffers with uninitialized memory should be part of another
+API. We propose `Buffer.allocUnsafe(number)`. This way, it's not part of an API that
+frequently gets user input of all sorts of different types passed into it.
+
+```js
+var buf = Buffer.allocUnsafe(16) // careful, uninitialized memory!
+
+// Immediately overwrite the uninitialized buffer with data from another buffer
+for (var i = 0; i < buf.length; i++) {
+  buf[i] = otherBuf[i]
+}
+```
+
+
+### How do we fix node.js core?
+
+We sent [a PR to node.js core](https://github.com/nodejs/node/pull/4514) (merged as
+`semver-major`) which defends against one case:
+
+```js
+var str = 16
+new Buffer(str, 'utf8')
+```
+
+In this situation, it's implied that the programmer intended the first argument to be a
+string, since they passed an encoding as a second argument. Today, node.js will allocate
+uninitialized memory in the case of `new Buffer(number, encoding)`, which is probably not
+what the programmer intended.
+
+But this is only a partial solution, since if the programmer does `new Buffer(variable)`
+(without an `encoding` parameter) there's no way to know what they intended. If `variable`
+is sometimes a number, then uninitialized memory will sometimes be returned.
+
+### What's the real long-term fix?
+
+We could deprecate and remove `new Buffer(number)` and use `Buffer.allocUnsafe(number)` when
+we need uninitialized memory. But that would break 1000s of packages.
+
+~~We believe the best solution is to:~~
+
+~~1. Change `new Buffer(number)` to return safe, zeroed-out memory~~
+
+~~2. Create a new API for creating uninitialized Buffers. We propose: `Buffer.allocUnsafe(number)`~~
+
+#### Update
+
+We now support adding three new APIs:
+
+- `Buffer.from(value)` - convert from any type to a buffer
+- `Buffer.alloc(size)` - create a zero-filled buffer
+- `Buffer.allocUnsafe(size)` - create an uninitialized buffer with given size
+
+This solves the core problem that affected `ws` and `bittorrent-dht` which is
+`Buffer(variable)` getting tricked into taking a number argument.
+
+This way, existing code continues working and the impact on the npm ecosystem will be
+minimal. Over time, npm maintainers can migrate performance-critical code to use
+`Buffer.allocUnsafe(number)` instead of `new Buffer(number)`.
+
+
+### Conclusion
+
+We think there's a serious design issue with the `Buffer` API as it exists today. It
+promotes insecure software by putting high-risk functionality into a convenient API
+with friendly "developer ergonomics".
+
+This wasn't merely a theoretical exercise because we found the issue in some of the
+most popular npm packages.
+
+Fortunately, there's an easy fix that can be applied today. Use `safe-buffer` in place of
+`buffer`.
+
+```js
+var Buffer = require('safe-buffer').Buffer
+```
+
+Eventually, we hope that node.js core can switch to this new, safer behavior. We believe
+the impact on the ecosystem would be minimal since it's not a breaking change.
+Well-maintained, popular packages would be updated to use `Buffer.alloc` quickly, while
+older, insecure packages would magically become safe from this attack vector.
+
+
+## links
+
+- [Node.js PR: buffer: throw if both length and enc are passed](https://github.com/nodejs/node/pull/4514)
+- [Node Security Project disclosure for `ws`](https://nodesecurity.io/advisories/67)
+- [Node Security Project disclosure for`bittorrent-dht`](https://nodesecurity.io/advisories/68)
+
+
+## credit
+
+The original issues in `bittorrent-dht`
+([disclosure](https://nodesecurity.io/advisories/68)) and
+`ws` ([disclosure](https://nodesecurity.io/advisories/67)) were discovered by
+[Mathias Buus](https://github.com/mafintosh) and
+[Feross Aboukhadijeh](http://feross.org/).
+
+Thanks to [Adam Baldwin](https://github.com/evilpacket) for helping disclose these issues
+and for his work running the [Node Security Project](https://nodesecurity.io/).
+
+Thanks to [John Hiesey](https://github.com/jhiesey) for proofreading this README and
+auditing the code.
+
+
+## license
+
+MIT. Copyright (C) [Feross Aboukhadijeh](http://feross.org)
diff --git a/backend/node_modules/string_decoder/node_modules/safe-buffer/index.d.ts b/backend/node_modules/string_decoder/node_modules/safe-buffer/index.d.ts
new file mode 100644
index 0000000..e9fed80
--- /dev/null
+++ b/backend/node_modules/string_decoder/node_modules/safe-buffer/index.d.ts
@@ -0,0 +1,187 @@
+declare module "safe-buffer" {
+  export class Buffer {
+    length: number
+    write(string: string, offset?: number, length?: number, encoding?: string): number;
+    toString(encoding?: string, start?: number, end?: number): string;
+    toJSON(): { type: 'Buffer', data: any[] };
+    equals(otherBuffer: Buffer): boolean;
+    compare(otherBuffer: Buffer, targetStart?: number, targetEnd?: number, sourceStart?: number, sourceEnd?: number): number;
+    copy(targetBuffer: Buffer, targetStart?: number, sourceStart?: number, sourceEnd?: number): number;
+    slice(start?: number, end?: number): Buffer;
+    writeUIntLE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+    writeUIntBE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+    writeIntLE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+    writeIntBE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+    readUIntLE(offset: number, byteLength: number, noAssert?: boolean): number;
+    readUIntBE(offset: number, byteLength: number, noAssert?: boolean): number;
+    readIntLE(offset: number, byteLength: number, noAssert?: boolean): number;
+    readIntBE(offset: number, byteLength: number, noAssert?: boolean): number;
+    readUInt8(offset: number, noAssert?: boolean): number;
+    readUInt16LE(offset: number, noAssert?: boolean): number;
+    readUInt16BE(offset: number, noAssert?: boolean): number;
+    readUInt32LE(offset: number, noAssert?: boolean): number;
+    readUInt32BE(offset: number, noAssert?: boolean): number;
+    readInt8(offset: number, noAssert?: boolean): number;
+    readInt16LE(offset: number, noAssert?: boolean): number;
+    readInt16BE(offset: number, noAssert?: boolean): number;
+    readInt32LE(offset: number, noAssert?: boolean): number;
+    readInt32BE(offset: number, noAssert?: boolean): number;
+    readFloatLE(offset: number, noAssert?: boolean): number;
+    readFloatBE(offset: number, noAssert?: boolean): number;
+    readDoubleLE(offset: number, noAssert?: boolean): number;
+    readDoubleBE(offset: number, noAssert?: boolean): number;
+    swap16(): Buffer;
+    swap32(): Buffer;
+    swap64(): Buffer;
+    writeUInt8(value: number, offset: number, noAssert?: boolean): number;
+    writeUInt16LE(value: number, offset: number, noAssert?: boolean): number;
+    writeUInt16BE(value: number, offset: number, noAssert?: boolean): number;
+    writeUInt32LE(value: number, offset: number, noAssert?: boolean): number;
+    writeUInt32BE(value: number, offset: number, noAssert?: boolean): number;
+    writeInt8(value: number, offset: number, noAssert?: boolean): number;
+    writeInt16LE(value: number, offset: number, noAssert?: boolean): number;
+    writeInt16BE(value: number, offset: number, noAssert?: boolean): number;
+    writeInt32LE(value: number, offset: number, noAssert?: boolean): number;
+    writeInt32BE(value: number, offset: number, noAssert?: boolean): number;
+    writeFloatLE(value: number, offset: number, noAssert?: boolean): number;
+    writeFloatBE(value: number, offset: number, noAssert?: boolean): number;
+    writeDoubleLE(value: number, offset: number, noAssert?: boolean): number;
+    writeDoubleBE(value: number, offset: number, noAssert?: boolean): number;
+    fill(value: any, offset?: number, end?: number): this;
+    indexOf(value: string | number | Buffer, byteOffset?: number, encoding?: string): number;
+    lastIndexOf(value: string | number | Buffer, byteOffset?: number, encoding?: string): number;
+    includes(value: string | number | Buffer, byteOffset?: number, encoding?: string): boolean;
+
+    /**
+     * Allocates a new buffer containing the given {str}.
+     *
+     * @param str String to store in buffer.
+     * @param encoding encoding to use, optional.  Default is 'utf8'
+     */
+     constructor (str: string, encoding?: string);
+    /**
+     * Allocates a new buffer of {size} octets.
+     *
+     * @param size count of octets to allocate.
+     */
+    constructor (size: number);
+    /**
+     * Allocates a new buffer containing the given {array} of octets.
+     *
+     * @param array The octets to store.
+     */
+    constructor (array: Uint8Array);
+    /**
+     * Produces a Buffer backed by the same allocated memory as
+     * the given {ArrayBuffer}.
+     *
+     *
+     * @param arrayBuffer The ArrayBuffer with which to share memory.
+     */
+    constructor (arrayBuffer: ArrayBuffer);
+    /**
+     * Allocates a new buffer containing the given {array} of octets.
+     *
+     * @param array The octets to store.
+     */
+    constructor (array: any[]);
+    /**
+     * Copies the passed {buffer} data onto a new {Buffer} instance.
+     *
+     * @param buffer The buffer to copy.
+     */
+    constructor (buffer: Buffer);
+    prototype: Buffer;
+    /**
+     * Allocates a new Buffer using an {array} of octets.
+     *
+     * @param array
+     */
+    static from(array: any[]): Buffer;
+    /**
+     * When passed a reference to the .buffer property of a TypedArray instance,
+     * the newly created Buffer will share the same allocated memory as the TypedArray.
+     * The optional {byteOffset} and {length} arguments specify a memory range
+     * within the {arrayBuffer} that will be shared by the Buffer.
+     *
+     * @param arrayBuffer The .buffer property of a TypedArray or a new ArrayBuffer()
+     * @param byteOffset
+     * @param length
+     */
+    static from(arrayBuffer: ArrayBuffer, byteOffset?: number, length?: number): Buffer;
+    /**
+     * Copies the passed {buffer} data onto a new Buffer instance.
+     *
+     * @param buffer
+     */
+    static from(buffer: Buffer): Buffer;
+    /**
+     * Creates a new Buffer containing the given JavaScript string {str}.
+     * If provided, the {encoding} parameter identifies the character encoding.
+     * If not provided, {encoding} defaults to 'utf8'.
+     *
+     * @param str
+     */
+    static from(str: string, encoding?: string): Buffer;
+    /**
+     * Returns true if {obj} is a Buffer
+     *
+     * @param obj object to test.
+     */
+    static isBuffer(obj: any): obj is Buffer;
+    /**
+     * Returns true if {encoding} is a valid encoding argument.
+     * Valid string encodings in Node 0.12: 'ascii'|'utf8'|'utf16le'|'ucs2'(alias of 'utf16le')|'base64'|'binary'(deprecated)|'hex'
+     *
+     * @param encoding string to test.
+     */
+    static isEncoding(encoding: string): boolean;
+    /**
+     * Gives the actual byte length of a string. encoding defaults to 'utf8'.
+     * This is not the same as String.prototype.length since that returns the number of characters in a string.
+     *
+     * @param string string to test.
+     * @param encoding encoding used to evaluate (defaults to 'utf8')
+     */
+    static byteLength(string: string, encoding?: string): number;
+    /**
+     * Returns a buffer which is the result of concatenating all the buffers in the list together.
+     *
+     * If the list has no items, or if the totalLength is 0, then it returns a zero-length buffer.
+     * If the list has exactly one item, then the first item of the list is returned.
+     * If the list has more than one item, then a new Buffer is created.
+     *
+     * @param list An array of Buffer objects to concatenate
+     * @param totalLength Total length of the buffers when concatenated.
+     *   If totalLength is not provided, it is read from the buffers in the list. However, this adds an additional loop to the function, so it is faster to provide the length explicitly.
+     */
+    static concat(list: Buffer[], totalLength?: number): Buffer;
+    /**
+     * The same as buf1.compare(buf2).
+     */
+    static compare(buf1: Buffer, buf2: Buffer): number;
+    /**
+     * Allocates a new buffer of {size} octets.
+     *
+     * @param size count of octets to allocate.
+     * @param fill if specified, buffer will be initialized by calling buf.fill(fill).
+     *    If parameter is omitted, buffer will be filled with zeros.
+     * @param encoding encoding used for call to buf.fill while initalizing
+     */
+    static alloc(size: number, fill?: string | Buffer | number, encoding?: string): Buffer;
+    /**
+     * Allocates a new buffer of {size} octets, leaving memory not initialized, so the contents
+     * of the newly created Buffer are unknown and may contain sensitive data.
+     *
+     * @param size count of octets to allocate
+     */
+    static allocUnsafe(size: number): Buffer;
+    /**
+     * Allocates a new non-pooled buffer of {size} octets, leaving memory not initialized, so the contents
+     * of the newly created Buffer are unknown and may contain sensitive data.
+     *
+     * @param size count of octets to allocate
+     */
+    static allocUnsafeSlow(size: number): Buffer;
+  }
+}
\ No newline at end of file
diff --git a/backend/node_modules/string_decoder/node_modules/safe-buffer/index.js b/backend/node_modules/string_decoder/node_modules/safe-buffer/index.js
new file mode 100644
index 0000000..22438da
--- /dev/null
+++ b/backend/node_modules/string_decoder/node_modules/safe-buffer/index.js
@@ -0,0 +1,62 @@
+/* eslint-disable node/no-deprecated-api */
+var buffer = require('buffer')
+var Buffer = buffer.Buffer
+
+// alternative to using Object.keys for old browsers
+function copyProps (src, dst) {
+  for (var key in src) {
+    dst[key] = src[key]
+  }
+}
+if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
+  module.exports = buffer
+} else {
+  // Copy properties from require('buffer')
+  copyProps(buffer, exports)
+  exports.Buffer = SafeBuffer
+}
+
+function SafeBuffer (arg, encodingOrOffset, length) {
+  return Buffer(arg, encodingOrOffset, length)
+}
+
+// Copy static methods from Buffer
+copyProps(Buffer, SafeBuffer)
+
+SafeBuffer.from = function (arg, encodingOrOffset, length) {
+  if (typeof arg === 'number') {
+    throw new TypeError('Argument must not be a number')
+  }
+  return Buffer(arg, encodingOrOffset, length)
+}
+
+SafeBuffer.alloc = function (size, fill, encoding) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  var buf = Buffer(size)
+  if (fill !== undefined) {
+    if (typeof encoding === 'string') {
+      buf.fill(fill, encoding)
+    } else {
+      buf.fill(fill)
+    }
+  } else {
+    buf.fill(0)
+  }
+  return buf
+}
+
+SafeBuffer.allocUnsafe = function (size) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  return Buffer(size)
+}
+
+SafeBuffer.allocUnsafeSlow = function (size) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  return buffer.SlowBuffer(size)
+}
diff --git a/backend/node_modules/string_decoder/node_modules/safe-buffer/package.json b/backend/node_modules/string_decoder/node_modules/safe-buffer/package.json
new file mode 100644
index 0000000..623fbc3
--- /dev/null
+++ b/backend/node_modules/string_decoder/node_modules/safe-buffer/package.json
@@ -0,0 +1,37 @@
+{
+  "name": "safe-buffer",
+  "description": "Safer Node.js Buffer API",
+  "version": "5.1.2",
+  "author": {
+    "name": "Feross Aboukhadijeh",
+    "email": "feross@feross.org",
+    "url": "http://feross.org"
+  },
+  "bugs": {
+    "url": "https://github.com/feross/safe-buffer/issues"
+  },
+  "devDependencies": {
+    "standard": "*",
+    "tape": "^4.0.0"
+  },
+  "homepage": "https://github.com/feross/safe-buffer",
+  "keywords": [
+    "buffer",
+    "buffer allocate",
+    "node security",
+    "safe",
+    "safe-buffer",
+    "security",
+    "uninitialized"
+  ],
+  "license": "MIT",
+  "main": "index.js",
+  "types": "index.d.ts",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/feross/safe-buffer.git"
+  },
+  "scripts": {
+    "test": "standard && tape test/*.js"
+  }
+}
diff --git a/backend/node_modules/string_decoder/package.json b/backend/node_modules/string_decoder/package.json
new file mode 100644
index 0000000..518c3eb
--- /dev/null
+++ b/backend/node_modules/string_decoder/package.json
@@ -0,0 +1,31 @@
+{
+  "name": "string_decoder",
+  "version": "1.1.1",
+  "description": "The string_decoder module from Node core",
+  "main": "lib/string_decoder.js",
+  "dependencies": {
+    "safe-buffer": "~5.1.0"
+  },
+  "devDependencies": {
+    "babel-polyfill": "^6.23.0",
+    "core-util-is": "^1.0.2",
+    "inherits": "^2.0.3",
+    "tap": "~0.4.8"
+  },
+  "scripts": {
+    "test": "tap test/parallel/*.js && node test/verify-dependencies",
+    "ci": "tap test/parallel/*.js test/ours/*.js --tap | tee test.tap && node test/verify-dependencies.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/nodejs/string_decoder.git"
+  },
+  "homepage": "https://github.com/nodejs/string_decoder",
+  "keywords": [
+    "string",
+    "decoder",
+    "browser",
+    "browserify"
+  ],
+  "license": "MIT"
+}
diff --git a/backend/node_modules/toidentifier/HISTORY.md b/backend/node_modules/toidentifier/HISTORY.md
new file mode 100644
index 0000000..cb7cc89
--- /dev/null
+++ b/backend/node_modules/toidentifier/HISTORY.md
@@ -0,0 +1,9 @@
+1.0.1 / 2021-11-14
+==================
+
+  * pref: enable strict mode
+
+1.0.0 / 2018-07-09
+==================
+
+  * Initial release
diff --git a/backend/node_modules/toidentifier/LICENSE b/backend/node_modules/toidentifier/LICENSE
new file mode 100644
index 0000000..de22d15
--- /dev/null
+++ b/backend/node_modules/toidentifier/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2016 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/toidentifier/README.md b/backend/node_modules/toidentifier/README.md
new file mode 100644
index 0000000..57e8a78
--- /dev/null
+++ b/backend/node_modules/toidentifier/README.md
@@ -0,0 +1,61 @@
+# toidentifier
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Build Status][github-actions-ci-image]][github-actions-ci-url]
+[![Test Coverage][codecov-image]][codecov-url]
+
+> Convert a string of words to a JavaScript identifier
+
+## Install
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```bash
+$ npm install toidentifier
+```
+
+## Example
+
+```js
+var toIdentifier = require('toidentifier')
+
+console.log(toIdentifier('Bad Request'))
+// => "BadRequest"
+```
+
+## API
+
+This CommonJS module exports a single default function: `toIdentifier`.
+
+### toIdentifier(string)
+
+Given a string as the argument, it will be transformed according to
+the following rules and the new string will be returned:
+
+1. Split into words separated by space characters (`0x20`).
+2. Upper case the first character of each word.
+3. Join the words together with no separator.
+4. Remove all non-word (`[0-9a-z_]`) characters.
+
+## License
+
+[MIT](LICENSE)
+
+[codecov-image]: https://img.shields.io/codecov/c/github/component/toidentifier.svg
+[codecov-url]: https://codecov.io/gh/component/toidentifier
+[downloads-image]: https://img.shields.io/npm/dm/toidentifier.svg
+[downloads-url]: https://npmjs.org/package/toidentifier
+[github-actions-ci-image]: https://img.shields.io/github/workflow/status/component/toidentifier/ci/master?label=ci
+[github-actions-ci-url]: https://github.com/component/toidentifier?query=workflow%3Aci
+[npm-image]: https://img.shields.io/npm/v/toidentifier.svg
+[npm-url]: https://npmjs.org/package/toidentifier
+
+
+##
+
+[npm]: https://www.npmjs.com/
+
+[yarn]: https://yarnpkg.com/
diff --git a/backend/node_modules/toidentifier/index.js b/backend/node_modules/toidentifier/index.js
new file mode 100644
index 0000000..9295d02
--- /dev/null
+++ b/backend/node_modules/toidentifier/index.js
@@ -0,0 +1,32 @@
+/*!
+ * toidentifier
+ * Copyright(c) 2016 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = toIdentifier
+
+/**
+ * Trasform the given string into a JavaScript identifier
+ *
+ * @param {string} str
+ * @returns {string}
+ * @public
+ */
+
+function toIdentifier (str) {
+  return str
+    .split(' ')
+    .map(function (token) {
+      return token.slice(0, 1).toUpperCase() + token.slice(1)
+    })
+    .join('')
+    .replace(/[^ _0-9a-z]/gi, '')
+}
diff --git a/backend/node_modules/toidentifier/package.json b/backend/node_modules/toidentifier/package.json
new file mode 100644
index 0000000..42db1a6
--- /dev/null
+++ b/backend/node_modules/toidentifier/package.json
@@ -0,0 +1,38 @@
+{
+  "name": "toidentifier",
+  "description": "Convert a string of words to a JavaScript identifier",
+  "version": "1.0.1",
+  "author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Nick Baugh <niftylettuce@gmail.com> (http://niftylettuce.com/)"
+  ],
+  "repository": "component/toidentifier",
+  "devDependencies": {
+    "eslint": "7.32.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.25.3",
+    "eslint-plugin-markdown": "2.2.1",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "4.3.1",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "9.1.3",
+    "nyc": "15.1.0"
+  },
+  "engines": {
+    "node": ">=0.6"
+  },
+  "license": "MIT",
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "index.js"
+  ],
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "version": "node scripts/version-history.js && git add HISTORY.md"
+  }
+}
diff --git a/backend/node_modules/tr46/LICENSE.md b/backend/node_modules/tr46/LICENSE.md
new file mode 100644
index 0000000..62c0de2
--- /dev/null
+++ b/backend/node_modules/tr46/LICENSE.md
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sebastian Mayr
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/tr46/README.md b/backend/node_modules/tr46/README.md
new file mode 100644
index 0000000..7bd9ffd
--- /dev/null
+++ b/backend/node_modules/tr46/README.md
@@ -0,0 +1,76 @@
+# tr46
+
+An JavaScript implementation of [Unicode Technical Standard #46: Unicode IDNA Compatibility Processing](https://unicode.org/reports/tr46/).
+
+## API
+
+### `toASCII(domainName[, options])`
+
+Converts a string of Unicode symbols to a case-folded Punycode string of ASCII symbols.
+
+Available options:
+
+* [`checkBidi`](#checkbidi)
+* [`checkHyphens`](#checkhyphens)
+* [`checkJoiners`](#checkjoiners)
+* [`ignoreInvalidPunycode`](#ignoreinvalidpunycode)
+* [`transitionalProcessing`](#transitionalprocessing)
+* [`useSTD3ASCIIRules`](#usestd3asciirules)
+* [`verifyDNSLength`](#verifydnslength)
+
+### `toUnicode(domainName[, options])`
+
+Converts a case-folded Punycode string of ASCII symbols to a string of Unicode symbols.
+
+Available options:
+
+* [`checkBidi`](#checkbidi)
+* [`checkHyphens`](#checkhyphens)
+* [`checkJoiners`](#checkjoiners)
+* [`ignoreInvalidPunycode`](#ignoreinvalidpunycode)
+* [`transitionalProcessing`](#transitionalprocessing)
+* [`useSTD3ASCIIRules`](#usestd3asciirules)
+
+## Options
+
+### `checkBidi`
+
+Type: `boolean`
+Default value: `false`
+When set to `true`, any bi-directional text within the input will be checked for validation.
+
+### `checkHyphens`
+
+Type: `boolean`
+Default value: `false`
+When set to `true`, the positions of any hyphen characters within the input will be checked for validation.
+
+### `checkJoiners`
+
+Type: `boolean`
+Default value: `false`
+When set to `true`, any word joiner characters within the input will be checked for validation.
+
+### `ignoreInvalidPunycode`
+
+Type: `boolean`
+Default value: `false`
+When set to `true`, invalid Punycode strings within the input will be allowed.
+
+### `transitionalProcessing`
+
+Type: `boolean`
+Default value: `false`
+When set to `true`, uses [transitional (compatibility) processing](https://unicode.org/reports/tr46/#Compatibility_Processing) of the deviation characters.
+
+### `useSTD3ASCIIRules`
+
+Type: `boolean`
+Default value: `false`
+When set to `true`, input will be validated according to [STD3 Rules](http://unicode.org/reports/tr46/#STD3_Rules).
+
+### `verifyDNSLength`
+
+Type: `boolean`
+Default value: `false`
+When set to `true`, the length of each DNS label within the input will be checked for validation.
diff --git a/backend/node_modules/tr46/index.js b/backend/node_modules/tr46/index.js
new file mode 100644
index 0000000..1146383
--- /dev/null
+++ b/backend/node_modules/tr46/index.js
@@ -0,0 +1,340 @@
+"use strict";
+
+const punycode = require("punycode/");
+const regexes = require("./lib/regexes.js");
+const mappingTable = require("./lib/mappingTable.json");
+const { STATUS_MAPPING } = require("./lib/statusMapping.js");
+
+function containsNonASCII(str) {
+  return /[^\x00-\x7F]/u.test(str);
+}
+
+function findStatus(val, { useSTD3ASCIIRules }) {
+  let start = 0;
+  let end = mappingTable.length - 1;
+
+  while (start <= end) {
+    const mid = Math.floor((start + end) / 2);
+
+    const target = mappingTable[mid];
+    const min = Array.isArray(target[0]) ? target[0][0] : target[0];
+    const max = Array.isArray(target[0]) ? target[0][1] : target[0];
+
+    if (min <= val && max >= val) {
+      if (useSTD3ASCIIRules &&
+          (target[1] === STATUS_MAPPING.disallowed_STD3_valid || target[1] === STATUS_MAPPING.disallowed_STD3_mapped)) {
+        return [STATUS_MAPPING.disallowed, ...target.slice(2)];
+      } else if (target[1] === STATUS_MAPPING.disallowed_STD3_valid) {
+        return [STATUS_MAPPING.valid, ...target.slice(2)];
+      } else if (target[1] === STATUS_MAPPING.disallowed_STD3_mapped) {
+        return [STATUS_MAPPING.mapped, ...target.slice(2)];
+      }
+
+      return target.slice(1);
+    } else if (min > val) {
+      end = mid - 1;
+    } else {
+      start = mid + 1;
+    }
+  }
+
+  return null;
+}
+
+function mapChars(domainName, { useSTD3ASCIIRules, transitionalProcessing }) {
+  let processed = "";
+
+  for (const ch of domainName) {
+    const [status, mapping] = findStatus(ch.codePointAt(0), { useSTD3ASCIIRules });
+
+    switch (status) {
+      case STATUS_MAPPING.disallowed:
+        processed += ch;
+        break;
+      case STATUS_MAPPING.ignored:
+        break;
+      case STATUS_MAPPING.mapped:
+        if (transitionalProcessing && ch === "ẞ") {
+          processed += "ss";
+        } else {
+          processed += mapping;
+        }
+        break;
+      case STATUS_MAPPING.deviation:
+        if (transitionalProcessing) {
+          processed += mapping;
+        } else {
+          processed += ch;
+        }
+        break;
+      case STATUS_MAPPING.valid:
+        processed += ch;
+        break;
+    }
+  }
+
+  return processed;
+}
+
+function validateLabel(label, {
+  checkHyphens,
+  checkBidi,
+  checkJoiners,
+  transitionalProcessing,
+  useSTD3ASCIIRules,
+  isBidi
+}) {
+  // "must be satisfied for a non-empty label"
+  if (label.length === 0) {
+    return true;
+  }
+
+  // "1. The label must be in Unicode Normalization Form NFC."
+  if (label.normalize("NFC") !== label) {
+    return false;
+  }
+
+  const codePoints = Array.from(label);
+
+  // "2. If CheckHyphens, the label must not contain a U+002D HYPHEN-MINUS character in both the
+  // third and fourth positions."
+  //
+  // "3. If CheckHyphens, the label must neither begin nor end with a U+002D HYPHEN-MINUS character."
+  if (checkHyphens) {
+    if ((codePoints[2] === "-" && codePoints[3] === "-") ||
+        (label.startsWith("-") || label.endsWith("-"))) {
+      return false;
+    }
+  }
+
+  // "4. If not CheckHyphens, the label must not begin with “xn--”."
+  // Disabled while we figure out https://github.com/whatwg/url/issues/803.
+  // if (!checkHyphens) {
+  //   if (label.startsWith("xn--")) {
+  //     return false;
+  //   }
+  // }
+
+  // "5. The label must not contain a U+002E ( . ) FULL STOP."
+  if (label.includes(".")) {
+    return false;
+  }
+
+  // "6. The label must not begin with a combining mark, that is: General_Category=Mark."
+  if (regexes.combiningMarks.test(codePoints[0])) {
+    return false;
+  }
+
+  // "7. Each code point in the label must only have certain Status values according to Section 5"
+  for (const ch of codePoints) {
+    const [status] = findStatus(ch.codePointAt(0), { useSTD3ASCIIRules });
+    if (transitionalProcessing) {
+      // "For Transitional Processing (deprecated), each value must be valid."
+      if (status !== STATUS_MAPPING.valid) {
+        return false;
+      }
+    } else if (status !== STATUS_MAPPING.valid && status !== STATUS_MAPPING.deviation) {
+      // "For Nontransitional Processing, each value must be either valid or deviation."
+      return false;
+    }
+  }
+
+  // "8. If CheckJoiners, the label must satisify the ContextJ rules"
+  // https://tools.ietf.org/html/rfc5892#appendix-A
+  if (checkJoiners) {
+    let last = 0;
+    for (const [i, ch] of codePoints.entries()) {
+      if (ch === "\u200C" || ch === "\u200D") {
+        if (i > 0) {
+          if (regexes.combiningClassVirama.test(codePoints[i - 1])) {
+            continue;
+          }
+          if (ch === "\u200C") {
+            // TODO: make this more efficient
+            const next = codePoints.indexOf("\u200C", i + 1);
+            const test = next < 0 ? codePoints.slice(last) : codePoints.slice(last, next);
+            if (regexes.validZWNJ.test(test.join(""))) {
+              last = i + 1;
+              continue;
+            }
+          }
+        }
+        return false;
+      }
+    }
+  }
+
+  // "9. If CheckBidi, and if the domain name is a Bidi domain name, then the label must satisfy..."
+  // https://tools.ietf.org/html/rfc5893#section-2
+  if (checkBidi && isBidi) {
+    let rtl;
+
+    // 1
+    if (regexes.bidiS1LTR.test(codePoints[0])) {
+      rtl = false;
+    } else if (regexes.bidiS1RTL.test(codePoints[0])) {
+      rtl = true;
+    } else {
+      return false;
+    }
+
+    if (rtl) {
+      // 2-4
+      if (!regexes.bidiS2.test(label) ||
+          !regexes.bidiS3.test(label) ||
+          (regexes.bidiS4EN.test(label) && regexes.bidiS4AN.test(label))) {
+        return false;
+      }
+    } else if (!regexes.bidiS5.test(label) ||
+               !regexes.bidiS6.test(label)) { // 5-6
+      return false;
+    }
+  }
+
+  return true;
+}
+
+function isBidiDomain(labels) {
+  const domain = labels.map(label => {
+    if (label.startsWith("xn--")) {
+      try {
+        return punycode.decode(label.substring(4));
+      } catch (err) {
+        return "";
+      }
+    }
+    return label;
+  }).join(".");
+  return regexes.bidiDomain.test(domain);
+}
+
+function processing(domainName, options) {
+  // 1. Map.
+  let string = mapChars(domainName, options);
+
+  // 2. Normalize.
+  string = string.normalize("NFC");
+
+  // 3. Break.
+  const labels = string.split(".");
+  const isBidi = isBidiDomain(labels);
+
+  // 4. Convert/Validate.
+  let error = false;
+  for (const [i, origLabel] of labels.entries()) {
+    let label = origLabel;
+    let transitionalProcessingForThisLabel = options.transitionalProcessing;
+    if (label.startsWith("xn--")) {
+      if (containsNonASCII(label)) {
+        error = true;
+        continue;
+      }
+
+      try {
+        label = punycode.decode(label.substring(4));
+      } catch {
+        if (!options.ignoreInvalidPunycode) {
+          error = true;
+          continue;
+        }
+      }
+      labels[i] = label;
+      transitionalProcessingForThisLabel = false;
+    }
+
+    // No need to validate if we already know there is an error.
+    if (error) {
+      continue;
+    }
+    const validation = validateLabel(label, {
+      ...options,
+      transitionalProcessing: transitionalProcessingForThisLabel,
+      isBidi
+    });
+    if (!validation) {
+      error = true;
+    }
+  }
+
+  return {
+    string: labels.join("."),
+    error
+  };
+}
+
+function toASCII(domainName, {
+  checkHyphens = false,
+  checkBidi = false,
+  checkJoiners = false,
+  useSTD3ASCIIRules = false,
+  verifyDNSLength = false,
+  transitionalProcessing = false,
+  ignoreInvalidPunycode = false
+} = {}) {
+  const result = processing(domainName, {
+    checkHyphens,
+    checkBidi,
+    checkJoiners,
+    useSTD3ASCIIRules,
+    transitionalProcessing,
+    ignoreInvalidPunycode
+  });
+  let labels = result.string.split(".");
+  labels = labels.map(l => {
+    if (containsNonASCII(l)) {
+      try {
+        return `xn--${punycode.encode(l)}`;
+      } catch (e) {
+        result.error = true;
+      }
+    }
+    return l;
+  });
+
+  if (verifyDNSLength) {
+    const total = labels.join(".").length;
+    if (total > 253 || total === 0) {
+      result.error = true;
+    }
+
+    for (let i = 0; i < labels.length; ++i) {
+      if (labels[i].length > 63 || labels[i].length === 0) {
+        result.error = true;
+        break;
+      }
+    }
+  }
+
+  if (result.error) {
+    return null;
+  }
+  return labels.join(".");
+}
+
+function toUnicode(domainName, {
+  checkHyphens = false,
+  checkBidi = false,
+  checkJoiners = false,
+  useSTD3ASCIIRules = false,
+  transitionalProcessing = false,
+  ignoreInvalidPunycode = false
+} = {}) {
+  const result = processing(domainName, {
+    checkHyphens,
+    checkBidi,
+    checkJoiners,
+    useSTD3ASCIIRules,
+    transitionalProcessing,
+    ignoreInvalidPunycode
+  });
+
+  return {
+    domain: result.string,
+    error: result.error
+  };
+}
+
+module.exports = {
+  toASCII,
+  toUnicode
+};
diff --git a/backend/node_modules/tr46/lib/mappingTable.json b/backend/node_modules/tr46/lib/mappingTable.json
new file mode 100644
index 0000000..db68aab
--- /dev/null
+++ b/backend/node_modules/tr46/lib/mappingTable.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/tr46/lib/regexes.js b/backend/node_modules/tr46/lib/regexes.js
new file mode 100644
index 0000000..1c22b42
--- /dev/null
+++ b/backend/node_modules/tr46/lib/regexes.js
@@ -0,0 +1,29 @@
+"use strict";
+
+const combiningMarks = /[\u0300-\u036F\u0483-\u0489\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u0610-\u061A\u064B-\u065F\u0670\u06D6-\u06DC\u06DF-\u06E4\u06E7\u06E8\u06EA-\u06ED\u0711\u0730-\u074A\u07A6-\u07B0\u07EB-\u07F3\u07FD\u0816-\u0819\u081B-\u0823\u0825-\u0827\u0829-\u082D\u0859-\u085B\u0898-\u089F\u08CA-\u08E1\u08E3-\u0903\u093A-\u093C\u093E-\u094F\u0951-\u0957\u0962\u0963\u0981-\u0983\u09BC\u09BE-\u09C4\u09C7\u09C8\u09CB-\u09CD\u09D7\u09E2\u09E3\u09FE\u0A01-\u0A03\u0A3C\u0A3E-\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A70\u0A71\u0A75\u0A81-\u0A83\u0ABC\u0ABE-\u0AC5\u0AC7-\u0AC9\u0ACB-\u0ACD\u0AE2\u0AE3\u0AFA-\u0AFF\u0B01-\u0B03\u0B3C\u0B3E-\u0B44\u0B47\u0B48\u0B4B-\u0B4D\u0B55-\u0B57\u0B62\u0B63\u0B82\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCD\u0BD7\u0C00-\u0C04\u0C3C\u0C3E-\u0C44\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C62\u0C63\u0C81-\u0C83\u0CBC\u0CBE-\u0CC4\u0CC6-\u0CC8\u0CCA-\u0CCD\u0CD5\u0CD6\u0CE2\u0CE3\u0CF3\u0D00-\u0D03\u0D3B\u0D3C\u0D3E-\u0D44\u0D46-\u0D48\u0D4A-\u0D4D\u0D57\u0D62\u0D63\u0D81-\u0D83\u0DCA\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DF2\u0DF3\u0E31\u0E34-\u0E3A\u0E47-\u0E4E\u0EB1\u0EB4-\u0EBC\u0EC8-\u0ECE\u0F18\u0F19\u0F35\u0F37\u0F39\u0F3E\u0F3F\u0F71-\u0F84\u0F86\u0F87\u0F8D-\u0F97\u0F99-\u0FBC\u0FC6\u102B-\u103E\u1056-\u1059\u105E-\u1060\u1062-\u1064\u1067-\u106D\u1071-\u1074\u1082-\u108D\u108F\u109A-\u109D\u135D-\u135F\u1712-\u1715\u1732-\u1734\u1752\u1753\u1772\u1773\u17B4-\u17D3\u17DD\u180B-\u180D\u180F\u1885\u1886\u18A9\u1920-\u192B\u1930-\u193B\u1A17-\u1A1B\u1A55-\u1A5E\u1A60-\u1A7C\u1A7F\u1AB0-\u1ACE\u1B00-\u1B04\u1B34-\u1B44\u1B6B-\u1B73\u1B80-\u1B82\u1BA1-\u1BAD\u1BE6-\u1BF3\u1C24-\u1C37\u1CD0-\u1CD2\u1CD4-\u1CE8\u1CED\u1CF4\u1CF7-\u1CF9\u1DC0-\u1DFF\u20D0-\u20F0\u2CEF-\u2CF1\u2D7F\u2DE0-\u2DFF\u302A-\u302F\u3099\u309A\uA66F-\uA672\uA674-\uA67D\uA69E\uA69F\uA6F0\uA6F1\uA802\uA806\uA80B\uA823-\uA827\uA82C\uA880\uA881\uA8B4-\uA8C5\uA8E0-\uA8F1\uA8FF\uA926-\uA92D\uA947-\uA953\uA980-\uA983\uA9B3-\uA9C0\uA9E5\uAA29-\uAA36\uAA43\uAA4C\uAA4D\uAA7B-\uAA7D\uAAB0\uAAB2-\uAAB4\uAAB7\uAAB8\uAABE\uAABF\uAAC1\uAAEB-\uAAEF\uAAF5\uAAF6\uABE3-\uABEA\uABEC\uABED\uFB1E\uFE00-\uFE0F\uFE20-\uFE2F\u{101FD}\u{102E0}\u{10376}-\u{1037A}\u{10A01}-\u{10A03}\u{10A05}\u{10A06}\u{10A0C}-\u{10A0F}\u{10A38}-\u{10A3A}\u{10A3F}\u{10AE5}\u{10AE6}\u{10D24}-\u{10D27}\u{10EAB}\u{10EAC}\u{10EFD}-\u{10EFF}\u{10F46}-\u{10F50}\u{10F82}-\u{10F85}\u{11000}-\u{11002}\u{11038}-\u{11046}\u{11070}\u{11073}\u{11074}\u{1107F}-\u{11082}\u{110B0}-\u{110BA}\u{110C2}\u{11100}-\u{11102}\u{11127}-\u{11134}\u{11145}\u{11146}\u{11173}\u{11180}-\u{11182}\u{111B3}-\u{111C0}\u{111C9}-\u{111CC}\u{111CE}\u{111CF}\u{1122C}-\u{11237}\u{1123E}\u{11241}\u{112DF}-\u{112EA}\u{11300}-\u{11303}\u{1133B}\u{1133C}\u{1133E}-\u{11344}\u{11347}\u{11348}\u{1134B}-\u{1134D}\u{11357}\u{11362}\u{11363}\u{11366}-\u{1136C}\u{11370}-\u{11374}\u{11435}-\u{11446}\u{1145E}\u{114B0}-\u{114C3}\u{115AF}-\u{115B5}\u{115B8}-\u{115C0}\u{115DC}\u{115DD}\u{11630}-\u{11640}\u{116AB}-\u{116B7}\u{1171D}-\u{1172B}\u{1182C}-\u{1183A}\u{11930}-\u{11935}\u{11937}\u{11938}\u{1193B}-\u{1193E}\u{11940}\u{11942}\u{11943}\u{119D1}-\u{119D7}\u{119DA}-\u{119E0}\u{119E4}\u{11A01}-\u{11A0A}\u{11A33}-\u{11A39}\u{11A3B}-\u{11A3E}\u{11A47}\u{11A51}-\u{11A5B}\u{11A8A}-\u{11A99}\u{11C2F}-\u{11C36}\u{11C38}-\u{11C3F}\u{11C92}-\u{11CA7}\u{11CA9}-\u{11CB6}\u{11D31}-\u{11D36}\u{11D3A}\u{11D3C}\u{11D3D}\u{11D3F}-\u{11D45}\u{11D47}\u{11D8A}-\u{11D8E}\u{11D90}\u{11D91}\u{11D93}-\u{11D97}\u{11EF3}-\u{11EF6}\u{11F00}\u{11F01}\u{11F03}\u{11F34}-\u{11F3A}\u{11F3E}-\u{11F42}\u{13440}\u{13447}-\u{13455}\u{16AF0}-\u{16AF4}\u{16B30}-\u{16B36}\u{16F4F}\u{16F51}-\u{16F87}\u{16F8F}-\u{16F92}\u{16FE4}\u{16FF0}\u{16FF1}\u{1BC9D}\u{1BC9E}\u{1CF00}-\u{1CF2D}\u{1CF30}-\u{1CF46}\u{1D165}-\u{1D169}\u{1D16D}-\u{1D172}\u{1D17B}-\u{1D182}\u{1D185}-\u{1D18B}\u{1D1AA}-\u{1D1AD}\u{1D242}-\u{1D244}\u{1DA00}-\u{1DA36}\u{1DA3B}-\u{1DA6C}\u{1DA75}\u{1DA84}\u{1DA9B}-\u{1DA9F}\u{1DAA1}-\u{1DAAF}\u{1E000}-\u{1E006}\u{1E008}-\u{1E018}\u{1E01B}-\u{1E021}\u{1E023}\u{1E024}\u{1E026}-\u{1E02A}\u{1E08F}\u{1E130}-\u{1E136}\u{1E2AE}\u{1E2EC}-\u{1E2EF}\u{1E4EC}-\u{1E4EF}\u{1E8D0}-\u{1E8D6}\u{1E944}-\u{1E94A}\u{E0100}-\u{E01EF}]/u;
+const combiningClassVirama = /[\u094D\u09CD\u0A4D\u0ACD\u0B4D\u0BCD\u0C4D\u0CCD\u0D3B\u0D3C\u0D4D\u0DCA\u0E3A\u0EBA\u0F84\u1039\u103A\u1714\u1715\u1734\u17D2\u1A60\u1B44\u1BAA\u1BAB\u1BF2\u1BF3\u2D7F\uA806\uA82C\uA8C4\uA953\uA9C0\uAAF6\uABED\u{10A3F}\u{11046}\u{11070}\u{1107F}\u{110B9}\u{11133}\u{11134}\u{111C0}\u{11235}\u{112EA}\u{1134D}\u{11442}\u{114C2}\u{115BF}\u{1163F}\u{116B6}\u{1172B}\u{11839}\u{1193D}\u{1193E}\u{119E0}\u{11A34}\u{11A47}\u{11A99}\u{11C3F}\u{11D44}\u{11D45}\u{11D97}\u{11F41}\u{11F42}]/u;
+const validZWNJ = /[\u0620\u0626\u0628\u062A-\u062E\u0633-\u063F\u0641-\u0647\u0649\u064A\u066E\u066F\u0678-\u0687\u069A-\u06BF\u06C1\u06C2\u06CC\u06CE\u06D0\u06D1\u06FA-\u06FC\u06FF\u0712-\u0714\u071A-\u071D\u071F-\u0727\u0729\u072B\u072D\u072E\u074E-\u0758\u075C-\u076A\u076D-\u0770\u0772\u0775-\u0777\u077A-\u077F\u07CA-\u07EA\u0841-\u0845\u0848\u084A-\u0853\u0855\u0860\u0862-\u0865\u0868\u0886\u0889-\u088D\u08A0-\u08A9\u08AF\u08B0\u08B3-\u08B8\u08BA-\u08C8\u1807\u1820-\u1878\u1887-\u18A8\u18AA\uA840-\uA872\u{10AC0}-\u{10AC4}\u{10ACD}\u{10AD3}-\u{10ADC}\u{10ADE}-\u{10AE0}\u{10AEB}-\u{10AEE}\u{10B80}\u{10B82}\u{10B86}-\u{10B88}\u{10B8A}\u{10B8B}\u{10B8D}\u{10B90}\u{10BAD}\u{10BAE}\u{10D00}-\u{10D21}\u{10D23}\u{10F30}-\u{10F32}\u{10F34}-\u{10F44}\u{10F51}-\u{10F53}\u{10F70}-\u{10F73}\u{10F76}-\u{10F81}\u{10FB0}\u{10FB2}\u{10FB3}\u{10FB8}\u{10FBB}\u{10FBC}\u{10FBE}\u{10FBF}\u{10FC1}\u{10FC4}\u{10FCA}\u{10FCB}\u{1E900}-\u{1E943}][\xAD\u0300-\u036F\u0483-\u0489\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u0610-\u061A\u061C\u064B-\u065F\u0670\u06D6-\u06DC\u06DF-\u06E4\u06E7\u06E8\u06EA-\u06ED\u070F\u0711\u0730-\u074A\u07A6-\u07B0\u07EB-\u07F3\u07FD\u0816-\u0819\u081B-\u0823\u0825-\u0827\u0829-\u082D\u0859-\u085B\u0898-\u089F\u08CA-\u08E1\u08E3-\u0902\u093A\u093C\u0941-\u0948\u094D\u0951-\u0957\u0962\u0963\u0981\u09BC\u09C1-\u09C4\u09CD\u09E2\u09E3\u09FE\u0A01\u0A02\u0A3C\u0A41\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A70\u0A71\u0A75\u0A81\u0A82\u0ABC\u0AC1-\u0AC5\u0AC7\u0AC8\u0ACD\u0AE2\u0AE3\u0AFA-\u0AFF\u0B01\u0B3C\u0B3F\u0B41-\u0B44\u0B4D\u0B55\u0B56\u0B62\u0B63\u0B82\u0BC0\u0BCD\u0C00\u0C04\u0C3C\u0C3E-\u0C40\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C62\u0C63\u0C81\u0CBC\u0CBF\u0CC6\u0CCC\u0CCD\u0CE2\u0CE3\u0D00\u0D01\u0D3B\u0D3C\u0D41-\u0D44\u0D4D\u0D62\u0D63\u0D81\u0DCA\u0DD2-\u0DD4\u0DD6\u0E31\u0E34-\u0E3A\u0E47-\u0E4E\u0EB1\u0EB4-\u0EBC\u0EC8-\u0ECE\u0F18\u0F19\u0F35\u0F37\u0F39\u0F71-\u0F7E\u0F80-\u0F84\u0F86\u0F87\u0F8D-\u0F97\u0F99-\u0FBC\u0FC6\u102D-\u1030\u1032-\u1037\u1039\u103A\u103D\u103E\u1058\u1059\u105E-\u1060\u1071-\u1074\u1082\u1085\u1086\u108D\u109D\u135D-\u135F\u1712-\u1714\u1732\u1733\u1752\u1753\u1772\u1773\u17B4\u17B5\u17B7-\u17BD\u17C6\u17C9-\u17D3\u17DD\u180B-\u180D\u180F\u1885\u1886\u18A9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193B\u1A17\u1A18\u1A1B\u1A56\u1A58-\u1A5E\u1A60\u1A62\u1A65-\u1A6C\u1A73-\u1A7C\u1A7F\u1AB0-\u1ACE\u1B00-\u1B03\u1B34\u1B36-\u1B3A\u1B3C\u1B42\u1B6B-\u1B73\u1B80\u1B81\u1BA2-\u1BA5\u1BA8\u1BA9\u1BAB-\u1BAD\u1BE6\u1BE8\u1BE9\u1BED\u1BEF-\u1BF1\u1C2C-\u1C33\u1C36\u1C37\u1CD0-\u1CD2\u1CD4-\u1CE0\u1CE2-\u1CE8\u1CED\u1CF4\u1CF8\u1CF9\u1DC0-\u1DFF\u200B\u200E\u200F\u202A-\u202E\u2060-\u2064\u206A-\u206F\u20D0-\u20F0\u2CEF-\u2CF1\u2D7F\u2DE0-\u2DFF\u302A-\u302D\u3099\u309A\uA66F-\uA672\uA674-\uA67D\uA69E\uA69F\uA6F0\uA6F1\uA802\uA806\uA80B\uA825\uA826\uA82C\uA8C4\uA8C5\uA8E0-\uA8F1\uA8FF\uA926-\uA92D\uA947-\uA951\uA980-\uA982\uA9B3\uA9B6-\uA9B9\uA9BC\uA9BD\uA9E5\uAA29-\uAA2E\uAA31\uAA32\uAA35\uAA36\uAA43\uAA4C\uAA7C\uAAB0\uAAB2-\uAAB4\uAAB7\uAAB8\uAABE\uAABF\uAAC1\uAAEC\uAAED\uAAF6\uABE5\uABE8\uABED\uFB1E\uFE00-\uFE0F\uFE20-\uFE2F\uFEFF\uFFF9-\uFFFB\u{101FD}\u{102E0}\u{10376}-\u{1037A}\u{10A01}-\u{10A03}\u{10A05}\u{10A06}\u{10A0C}-\u{10A0F}\u{10A38}-\u{10A3A}\u{10A3F}\u{10AE5}\u{10AE6}\u{10D24}-\u{10D27}\u{10EAB}\u{10EAC}\u{10EFD}-\u{10EFF}\u{10F46}-\u{10F50}\u{10F82}-\u{10F85}\u{11001}\u{11038}-\u{11046}\u{11070}\u{11073}\u{11074}\u{1107F}-\u{11081}\u{110B3}-\u{110B6}\u{110B9}\u{110BA}\u{110C2}\u{11100}-\u{11102}\u{11127}-\u{1112B}\u{1112D}-\u{11134}\u{11173}\u{11180}\u{11181}\u{111B6}-\u{111BE}\u{111C9}-\u{111CC}\u{111CF}\u{1122F}-\u{11231}\u{11234}\u{11236}\u{11237}\u{1123E}\u{11241}\u{112DF}\u{112E3}-\u{112EA}\u{11300}\u{11301}\u{1133B}\u{1133C}\u{11340}\u{11366}-\u{1136C}\u{11370}-\u{11374}\u{11438}-\u{1143F}\u{11442}-\u{11444}\u{11446}\u{1145E}\u{114B3}-\u{114B8}\u{114BA}\u{114BF}\u{114C0}\u{114C2}\u{114C3}\u{115B2}-\u{115B5}\u{115BC}\u{115BD}\u{115BF}\u{115C0}\u{115DC}\u{115DD}\u{11633}-\u{1163A}\u{1163D}\u{1163F}\u{11640}\u{116AB}\u{116AD}\u{116B0}-\u{116B5}\u{116B7}\u{1171D}-\u{1171F}\u{11722}-\u{11725}\u{11727}-\u{1172B}\u{1182F}-\u{11837}\u{11839}\u{1183A}\u{1193B}\u{1193C}\u{1193E}\u{11943}\u{119D4}-\u{119D7}\u{119DA}\u{119DB}\u{119E0}\u{11A01}-\u{11A0A}\u{11A33}-\u{11A38}\u{11A3B}-\u{11A3E}\u{11A47}\u{11A51}-\u{11A56}\u{11A59}-\u{11A5B}\u{11A8A}-\u{11A96}\u{11A98}\u{11A99}\u{11C30}-\u{11C36}\u{11C38}-\u{11C3D}\u{11C3F}\u{11C92}-\u{11CA7}\u{11CAA}-\u{11CB0}\u{11CB2}\u{11CB3}\u{11CB5}\u{11CB6}\u{11D31}-\u{11D36}\u{11D3A}\u{11D3C}\u{11D3D}\u{11D3F}-\u{11D45}\u{11D47}\u{11D90}\u{11D91}\u{11D95}\u{11D97}\u{11EF3}\u{11EF4}\u{11F00}\u{11F01}\u{11F36}-\u{11F3A}\u{11F40}\u{11F42}\u{13430}-\u{13440}\u{13447}-\u{13455}\u{16AF0}-\u{16AF4}\u{16B30}-\u{16B36}\u{16F4F}\u{16F8F}-\u{16F92}\u{16FE4}\u{1BC9D}\u{1BC9E}\u{1BCA0}-\u{1BCA3}\u{1CF00}-\u{1CF2D}\u{1CF30}-\u{1CF46}\u{1D167}-\u{1D169}\u{1D173}-\u{1D182}\u{1D185}-\u{1D18B}\u{1D1AA}-\u{1D1AD}\u{1D242}-\u{1D244}\u{1DA00}-\u{1DA36}\u{1DA3B}-\u{1DA6C}\u{1DA75}\u{1DA84}\u{1DA9B}-\u{1DA9F}\u{1DAA1}-\u{1DAAF}\u{1E000}-\u{1E006}\u{1E008}-\u{1E018}\u{1E01B}-\u{1E021}\u{1E023}\u{1E024}\u{1E026}-\u{1E02A}\u{1E08F}\u{1E130}-\u{1E136}\u{1E2AE}\u{1E2EC}-\u{1E2EF}\u{1E4EC}-\u{1E4EF}\u{1E8D0}-\u{1E8D6}\u{1E944}-\u{1E94B}\u{E0001}\u{E0020}-\u{E007F}\u{E0100}-\u{E01EF}]*\u200C[\xAD\u0300-\u036F\u0483-\u0489\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u0610-\u061A\u061C\u064B-\u065F\u0670\u06D6-\u06DC\u06DF-\u06E4\u06E7\u06E8\u06EA-\u06ED\u070F\u0711\u0730-\u074A\u07A6-\u07B0\u07EB-\u07F3\u07FD\u0816-\u0819\u081B-\u0823\u0825-\u0827\u0829-\u082D\u0859-\u085B\u0898-\u089F\u08CA-\u08E1\u08E3-\u0902\u093A\u093C\u0941-\u0948\u094D\u0951-\u0957\u0962\u0963\u0981\u09BC\u09C1-\u09C4\u09CD\u09E2\u09E3\u09FE\u0A01\u0A02\u0A3C\u0A41\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A70\u0A71\u0A75\u0A81\u0A82\u0ABC\u0AC1-\u0AC5\u0AC7\u0AC8\u0ACD\u0AE2\u0AE3\u0AFA-\u0AFF\u0B01\u0B3C\u0B3F\u0B41-\u0B44\u0B4D\u0B55\u0B56\u0B62\u0B63\u0B82\u0BC0\u0BCD\u0C00\u0C04\u0C3C\u0C3E-\u0C40\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C62\u0C63\u0C81\u0CBC\u0CBF\u0CC6\u0CCC\u0CCD\u0CE2\u0CE3\u0D00\u0D01\u0D3B\u0D3C\u0D41-\u0D44\u0D4D\u0D62\u0D63\u0D81\u0DCA\u0DD2-\u0DD4\u0DD6\u0E31\u0E34-\u0E3A\u0E47-\u0E4E\u0EB1\u0EB4-\u0EBC\u0EC8-\u0ECE\u0F18\u0F19\u0F35\u0F37\u0F39\u0F71-\u0F7E\u0F80-\u0F84\u0F86\u0F87\u0F8D-\u0F97\u0F99-\u0FBC\u0FC6\u102D-\u1030\u1032-\u1037\u1039\u103A\u103D\u103E\u1058\u1059\u105E-\u1060\u1071-\u1074\u1082\u1085\u1086\u108D\u109D\u135D-\u135F\u1712-\u1714\u1732\u1733\u1752\u1753\u1772\u1773\u17B4\u17B5\u17B7-\u17BD\u17C6\u17C9-\u17D3\u17DD\u180B-\u180D\u180F\u1885\u1886\u18A9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193B\u1A17\u1A18\u1A1B\u1A56\u1A58-\u1A5E\u1A60\u1A62\u1A65-\u1A6C\u1A73-\u1A7C\u1A7F\u1AB0-\u1ACE\u1B00-\u1B03\u1B34\u1B36-\u1B3A\u1B3C\u1B42\u1B6B-\u1B73\u1B80\u1B81\u1BA2-\u1BA5\u1BA8\u1BA9\u1BAB-\u1BAD\u1BE6\u1BE8\u1BE9\u1BED\u1BEF-\u1BF1\u1C2C-\u1C33\u1C36\u1C37\u1CD0-\u1CD2\u1CD4-\u1CE0\u1CE2-\u1CE8\u1CED\u1CF4\u1CF8\u1CF9\u1DC0-\u1DFF\u200B\u200E\u200F\u202A-\u202E\u2060-\u2064\u206A-\u206F\u20D0-\u20F0\u2CEF-\u2CF1\u2D7F\u2DE0-\u2DFF\u302A-\u302D\u3099\u309A\uA66F-\uA672\uA674-\uA67D\uA69E\uA69F\uA6F0\uA6F1\uA802\uA806\uA80B\uA825\uA826\uA82C\uA8C4\uA8C5\uA8E0-\uA8F1\uA8FF\uA926-\uA92D\uA947-\uA951\uA980-\uA982\uA9B3\uA9B6-\uA9B9\uA9BC\uA9BD\uA9E5\uAA29-\uAA2E\uAA31\uAA32\uAA35\uAA36\uAA43\uAA4C\uAA7C\uAAB0\uAAB2-\uAAB4\uAAB7\uAAB8\uAABE\uAABF\uAAC1\uAAEC\uAAED\uAAF6\uABE5\uABE8\uABED\uFB1E\uFE00-\uFE0F\uFE20-\uFE2F\uFEFF\uFFF9-\uFFFB\u{101FD}\u{102E0}\u{10376}-\u{1037A}\u{10A01}-\u{10A03}\u{10A05}\u{10A06}\u{10A0C}-\u{10A0F}\u{10A38}-\u{10A3A}\u{10A3F}\u{10AE5}\u{10AE6}\u{10D24}-\u{10D27}\u{10EAB}\u{10EAC}\u{10EFD}-\u{10EFF}\u{10F46}-\u{10F50}\u{10F82}-\u{10F85}\u{11001}\u{11038}-\u{11046}\u{11070}\u{11073}\u{11074}\u{1107F}-\u{11081}\u{110B3}-\u{110B6}\u{110B9}\u{110BA}\u{110C2}\u{11100}-\u{11102}\u{11127}-\u{1112B}\u{1112D}-\u{11134}\u{11173}\u{11180}\u{11181}\u{111B6}-\u{111BE}\u{111C9}-\u{111CC}\u{111CF}\u{1122F}-\u{11231}\u{11234}\u{11236}\u{11237}\u{1123E}\u{11241}\u{112DF}\u{112E3}-\u{112EA}\u{11300}\u{11301}\u{1133B}\u{1133C}\u{11340}\u{11366}-\u{1136C}\u{11370}-\u{11374}\u{11438}-\u{1143F}\u{11442}-\u{11444}\u{11446}\u{1145E}\u{114B3}-\u{114B8}\u{114BA}\u{114BF}\u{114C0}\u{114C2}\u{114C3}\u{115B2}-\u{115B5}\u{115BC}\u{115BD}\u{115BF}\u{115C0}\u{115DC}\u{115DD}\u{11633}-\u{1163A}\u{1163D}\u{1163F}\u{11640}\u{116AB}\u{116AD}\u{116B0}-\u{116B5}\u{116B7}\u{1171D}-\u{1171F}\u{11722}-\u{11725}\u{11727}-\u{1172B}\u{1182F}-\u{11837}\u{11839}\u{1183A}\u{1193B}\u{1193C}\u{1193E}\u{11943}\u{119D4}-\u{119D7}\u{119DA}\u{119DB}\u{119E0}\u{11A01}-\u{11A0A}\u{11A33}-\u{11A38}\u{11A3B}-\u{11A3E}\u{11A47}\u{11A51}-\u{11A56}\u{11A59}-\u{11A5B}\u{11A8A}-\u{11A96}\u{11A98}\u{11A99}\u{11C30}-\u{11C36}\u{11C38}-\u{11C3D}\u{11C3F}\u{11C92}-\u{11CA7}\u{11CAA}-\u{11CB0}\u{11CB2}\u{11CB3}\u{11CB5}\u{11CB6}\u{11D31}-\u{11D36}\u{11D3A}\u{11D3C}\u{11D3D}\u{11D3F}-\u{11D45}\u{11D47}\u{11D90}\u{11D91}\u{11D95}\u{11D97}\u{11EF3}\u{11EF4}\u{11F00}\u{11F01}\u{11F36}-\u{11F3A}\u{11F40}\u{11F42}\u{13430}-\u{13440}\u{13447}-\u{13455}\u{16AF0}-\u{16AF4}\u{16B30}-\u{16B36}\u{16F4F}\u{16F8F}-\u{16F92}\u{16FE4}\u{1BC9D}\u{1BC9E}\u{1BCA0}-\u{1BCA3}\u{1CF00}-\u{1CF2D}\u{1CF30}-\u{1CF46}\u{1D167}-\u{1D169}\u{1D173}-\u{1D182}\u{1D185}-\u{1D18B}\u{1D1AA}-\u{1D1AD}\u{1D242}-\u{1D244}\u{1DA00}-\u{1DA36}\u{1DA3B}-\u{1DA6C}\u{1DA75}\u{1DA84}\u{1DA9B}-\u{1DA9F}\u{1DAA1}-\u{1DAAF}\u{1E000}-\u{1E006}\u{1E008}-\u{1E018}\u{1E01B}-\u{1E021}\u{1E023}\u{1E024}\u{1E026}-\u{1E02A}\u{1E08F}\u{1E130}-\u{1E136}\u{1E2AE}\u{1E2EC}-\u{1E2EF}\u{1E4EC}-\u{1E4EF}\u{1E8D0}-\u{1E8D6}\u{1E944}-\u{1E94B}\u{E0001}\u{E0020}-\u{E007F}\u{E0100}-\u{E01EF}]*[\u0620\u0622-\u063F\u0641-\u064A\u066E\u066F\u0671-\u0673\u0675-\u06D3\u06D5\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u077F\u07CA-\u07EA\u0840-\u0858\u0860\u0862-\u0865\u0867-\u086A\u0870-\u0882\u0886\u0889-\u088E\u08A0-\u08AC\u08AE-\u08C8\u1807\u1820-\u1878\u1887-\u18A8\u18AA\uA840-\uA871\u{10AC0}-\u{10AC5}\u{10AC7}\u{10AC9}\u{10ACA}\u{10ACE}-\u{10AD6}\u{10AD8}-\u{10AE1}\u{10AE4}\u{10AEB}-\u{10AEF}\u{10B80}-\u{10B91}\u{10BA9}-\u{10BAE}\u{10D01}-\u{10D23}\u{10F30}-\u{10F44}\u{10F51}-\u{10F54}\u{10F70}-\u{10F81}\u{10FB0}\u{10FB2}-\u{10FB6}\u{10FB8}-\u{10FBF}\u{10FC1}-\u{10FC4}\u{10FC9}\u{10FCA}\u{1E900}-\u{1E943}]/u;
+const bidiDomain = /[\u05BE\u05C0\u05C3\u05C6\u05D0-\u05EA\u05EF-\u05F4\u0600-\u0605\u0608\u060B\u060D\u061B-\u064A\u0660-\u0669\u066B-\u066F\u0671-\u06D5\u06DD\u06E5\u06E6\u06EE\u06EF\u06FA-\u070D\u070F\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07C0-\u07EA\u07F4\u07F5\u07FA\u07FE-\u0815\u081A\u0824\u0828\u0830-\u083E\u0840-\u0858\u085E\u0860-\u086A\u0870-\u088E\u0890\u0891\u08A0-\u08C9\u08E2\u200F\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBC2\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFC\uFE70-\uFE74\uFE76-\uFEFC\u{10800}-\u{10805}\u{10808}\u{1080A}-\u{10835}\u{10837}\u{10838}\u{1083C}\u{1083F}-\u{10855}\u{10857}-\u{1089E}\u{108A7}-\u{108AF}\u{108E0}-\u{108F2}\u{108F4}\u{108F5}\u{108FB}-\u{1091B}\u{10920}-\u{10939}\u{1093F}\u{10980}-\u{109B7}\u{109BC}-\u{109CF}\u{109D2}-\u{10A00}\u{10A10}-\u{10A13}\u{10A15}-\u{10A17}\u{10A19}-\u{10A35}\u{10A40}-\u{10A48}\u{10A50}-\u{10A58}\u{10A60}-\u{10A9F}\u{10AC0}-\u{10AE4}\u{10AEB}-\u{10AF6}\u{10B00}-\u{10B35}\u{10B40}-\u{10B55}\u{10B58}-\u{10B72}\u{10B78}-\u{10B91}\u{10B99}-\u{10B9C}\u{10BA9}-\u{10BAF}\u{10C00}-\u{10C48}\u{10C80}-\u{10CB2}\u{10CC0}-\u{10CF2}\u{10CFA}-\u{10D23}\u{10D30}-\u{10D39}\u{10E60}-\u{10E7E}\u{10E80}-\u{10EA9}\u{10EAD}\u{10EB0}\u{10EB1}\u{10F00}-\u{10F27}\u{10F30}-\u{10F45}\u{10F51}-\u{10F59}\u{10F70}-\u{10F81}\u{10F86}-\u{10F89}\u{10FB0}-\u{10FCB}\u{10FE0}-\u{10FF6}\u{1E800}-\u{1E8C4}\u{1E8C7}-\u{1E8CF}\u{1E900}-\u{1E943}\u{1E94B}\u{1E950}-\u{1E959}\u{1E95E}\u{1E95F}\u{1EC71}-\u{1ECB4}\u{1ED01}-\u{1ED3D}\u{1EE00}-\u{1EE03}\u{1EE05}-\u{1EE1F}\u{1EE21}\u{1EE22}\u{1EE24}\u{1EE27}\u{1EE29}-\u{1EE32}\u{1EE34}-\u{1EE37}\u{1EE39}\u{1EE3B}\u{1EE42}\u{1EE47}\u{1EE49}\u{1EE4B}\u{1EE4D}-\u{1EE4F}\u{1EE51}\u{1EE52}\u{1EE54}\u{1EE57}\u{1EE59}\u{1EE5B}\u{1EE5D}\u{1EE5F}\u{1EE61}\u{1EE62}\u{1EE64}\u{1EE67}-\u{1EE6A}\u{1EE6C}-\u{1EE72}\u{1EE74}-\u{1EE77}\u{1EE79}-\u{1EE7C}\u{1EE7E}\u{1EE80}-\u{1EE89}\u{1EE8B}-\u{1EE9B}\u{1EEA1}-\u{1EEA3}\u{1EEA5}-\u{1EEA9}\u{1EEAB}-\u{1EEBB}]/u;
+const bidiS1LTR = /[A-Za-z\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02B8\u02BB-\u02C1\u02D0\u02D1\u02E0-\u02E4\u02EE\u0370-\u0373\u0376\u0377\u037A-\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0482\u048A-\u052F\u0531-\u0556\u0559-\u0589\u0903-\u0939\u093B\u093D-\u0940\u0949-\u094C\u094E-\u0950\u0958-\u0961\u0964-\u0980\u0982\u0983\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD-\u09C0\u09C7\u09C8\u09CB\u09CC\u09CE\u09D7\u09DC\u09DD\u09DF-\u09E1\u09E6-\u09F1\u09F4-\u09FA\u09FC\u09FD\u0A03\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A3E-\u0A40\u0A59-\u0A5C\u0A5E\u0A66-\u0A6F\u0A72-\u0A74\u0A76\u0A83\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD-\u0AC0\u0AC9\u0ACB\u0ACC\u0AD0\u0AE0\u0AE1\u0AE6-\u0AF0\u0AF9\u0B02\u0B03\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B3E\u0B40\u0B47\u0B48\u0B4B\u0B4C\u0B57\u0B5C\u0B5D\u0B5F-\u0B61\u0B66-\u0B77\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BBE\u0BBF\u0BC1\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCC\u0BD0\u0BD7\u0BE6-\u0BF2\u0C01-\u0C03\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C39\u0C3D\u0C41-\u0C44\u0C58-\u0C5A\u0C5D\u0C60\u0C61\u0C66-\u0C6F\u0C77\u0C7F\u0C80\u0C82-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBD-\u0CC4\u0CC6-\u0CC8\u0CCA\u0CCB\u0CD5\u0CD6\u0CDD\u0CDE\u0CE0\u0CE1\u0CE6-\u0CEF\u0CF1-\u0CF3\u0D02-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D-\u0D40\u0D46-\u0D48\u0D4A-\u0D4C\u0D4E\u0D4F\u0D54-\u0D61\u0D66-\u0D7F\u0D82\u0D83\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0DCF-\u0DD1\u0DD8-\u0DDF\u0DE6-\u0DEF\u0DF2-\u0DF4\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E4F-\u0E5B\u0E81\u0E82\u0E84\u0E86-\u0E8A\u0E8C-\u0EA3\u0EA5\u0EA7-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6\u0ED0-\u0ED9\u0EDC-\u0EDF\u0F00-\u0F17\u0F1A-\u0F34\u0F36\u0F38\u0F3E-\u0F47\u0F49-\u0F6C\u0F7F\u0F85\u0F88-\u0F8C\u0FBE-\u0FC5\u0FC7-\u0FCC\u0FCE-\u0FDA\u1000-\u102C\u1031\u1038\u103B\u103C\u103F-\u1057\u105A-\u105D\u1061-\u1070\u1075-\u1081\u1083\u1084\u1087-\u108C\u108E-\u109C\u109E-\u10C5\u10C7\u10CD\u10D0-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u1360-\u137C\u1380-\u138F\u13A0-\u13F5\u13F8-\u13FD\u1401-\u167F\u1681-\u169A\u16A0-\u16F8\u1700-\u1711\u1715\u171F-\u1731\u1734-\u1736\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17B6\u17BE-\u17C5\u17C7\u17C8\u17D4-\u17DA\u17DC\u17E0-\u17E9\u1810-\u1819\u1820-\u1878\u1880-\u1884\u1887-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191E\u1923-\u1926\u1929-\u192B\u1930\u1931\u1933-\u1938\u1946-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u19D0-\u19DA\u1A00-\u1A16\u1A19\u1A1A\u1A1E-\u1A55\u1A57\u1A61\u1A63\u1A64\u1A6D-\u1A72\u1A80-\u1A89\u1A90-\u1A99\u1AA0-\u1AAD\u1B04-\u1B33\u1B35\u1B3B\u1B3D-\u1B41\u1B43-\u1B4C\u1B50-\u1B6A\u1B74-\u1B7E\u1B82-\u1BA1\u1BA6\u1BA7\u1BAA\u1BAE-\u1BE5\u1BE7\u1BEA-\u1BEC\u1BEE\u1BF2\u1BF3\u1BFC-\u1C2B\u1C34\u1C35\u1C3B-\u1C49\u1C4D-\u1C88\u1C90-\u1CBA\u1CBD-\u1CC7\u1CD3\u1CE1\u1CE9-\u1CEC\u1CEE-\u1CF3\u1CF5-\u1CF7\u1CFA\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u200E\u2071\u207F\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u214F\u2160-\u2188\u2336-\u237A\u2395\u249C-\u24E9\u26AC\u2800-\u28FF\u2C00-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D70\u2D80-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u3005-\u3007\u3021-\u3029\u302E\u302F\u3031-\u3035\u3038-\u303C\u3041-\u3096\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312F\u3131-\u318E\u3190-\u31BF\u31F0-\u321C\u3220-\u324F\u3260-\u327B\u327F-\u32B0\u32C0-\u32CB\u32D0-\u3376\u337B-\u33DD\u33E0-\u33FE\u3400-\u4DBF\u4E00-\uA48C\uA4D0-\uA60C\uA610-\uA62B\uA640-\uA66E\uA680-\uA69D\uA6A0-\uA6EF\uA6F2-\uA6F7\uA722-\uA787\uA789-\uA7CA\uA7D0\uA7D1\uA7D3\uA7D5-\uA7D9\uA7F2-\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA824\uA827\uA830-\uA837\uA840-\uA873\uA880-\uA8C3\uA8CE-\uA8D9\uA8F2-\uA8FE\uA900-\uA925\uA92E-\uA946\uA952\uA953\uA95F-\uA97C\uA983-\uA9B2\uA9B4\uA9B5\uA9BA\uA9BB\uA9BE-\uA9CD\uA9CF-\uA9D9\uA9DE-\uA9E4\uA9E6-\uA9FE\uAA00-\uAA28\uAA2F\uAA30\uAA33\uAA34\uAA40-\uAA42\uAA44-\uAA4B\uAA4D\uAA50-\uAA59\uAA5C-\uAA7B\uAA7D-\uAAAF\uAAB1\uAAB5\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAAEB\uAAEE-\uAAF5\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uAB30-\uAB69\uAB70-\uABE4\uABE6\uABE7\uABE9-\uABEC\uABF0-\uABF9\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uD800-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC\u{10000}-\u{1000B}\u{1000D}-\u{10026}\u{10028}-\u{1003A}\u{1003C}\u{1003D}\u{1003F}-\u{1004D}\u{10050}-\u{1005D}\u{10080}-\u{100FA}\u{10100}\u{10102}\u{10107}-\u{10133}\u{10137}-\u{1013F}\u{1018D}\u{1018E}\u{101D0}-\u{101FC}\u{10280}-\u{1029C}\u{102A0}-\u{102D0}\u{10300}-\u{10323}\u{1032D}-\u{1034A}\u{10350}-\u{10375}\u{10380}-\u{1039D}\u{1039F}-\u{103C3}\u{103C8}-\u{103D5}\u{10400}-\u{1049D}\u{104A0}-\u{104A9}\u{104B0}-\u{104D3}\u{104D8}-\u{104FB}\u{10500}-\u{10527}\u{10530}-\u{10563}\u{1056F}-\u{1057A}\u{1057C}-\u{1058A}\u{1058C}-\u{10592}\u{10594}\u{10595}\u{10597}-\u{105A1}\u{105A3}-\u{105B1}\u{105B3}-\u{105B9}\u{105BB}\u{105BC}\u{10600}-\u{10736}\u{10740}-\u{10755}\u{10760}-\u{10767}\u{10780}-\u{10785}\u{10787}-\u{107B0}\u{107B2}-\u{107BA}\u{11000}\u{11002}-\u{11037}\u{11047}-\u{1104D}\u{11066}-\u{1106F}\u{11071}\u{11072}\u{11075}\u{11082}-\u{110B2}\u{110B7}\u{110B8}\u{110BB}-\u{110C1}\u{110CD}\u{110D0}-\u{110E8}\u{110F0}-\u{110F9}\u{11103}-\u{11126}\u{1112C}\u{11136}-\u{11147}\u{11150}-\u{11172}\u{11174}-\u{11176}\u{11182}-\u{111B5}\u{111BF}-\u{111C8}\u{111CD}\u{111CE}\u{111D0}-\u{111DF}\u{111E1}-\u{111F4}\u{11200}-\u{11211}\u{11213}-\u{1122E}\u{11232}\u{11233}\u{11235}\u{11238}-\u{1123D}\u{1123F}\u{11240}\u{11280}-\u{11286}\u{11288}\u{1128A}-\u{1128D}\u{1128F}-\u{1129D}\u{1129F}-\u{112A9}\u{112B0}-\u{112DE}\u{112E0}-\u{112E2}\u{112F0}-\u{112F9}\u{11302}\u{11303}\u{11305}-\u{1130C}\u{1130F}\u{11310}\u{11313}-\u{11328}\u{1132A}-\u{11330}\u{11332}\u{11333}\u{11335}-\u{11339}\u{1133D}-\u{1133F}\u{11341}-\u{11344}\u{11347}\u{11348}\u{1134B}-\u{1134D}\u{11350}\u{11357}\u{1135D}-\u{11363}\u{11400}-\u{11437}\u{11440}\u{11441}\u{11445}\u{11447}-\u{1145B}\u{1145D}\u{1145F}-\u{11461}\u{11480}-\u{114B2}\u{114B9}\u{114BB}-\u{114BE}\u{114C1}\u{114C4}-\u{114C7}\u{114D0}-\u{114D9}\u{11580}-\u{115B1}\u{115B8}-\u{115BB}\u{115BE}\u{115C1}-\u{115DB}\u{11600}-\u{11632}\u{1163B}\u{1163C}\u{1163E}\u{11641}-\u{11644}\u{11650}-\u{11659}\u{11680}-\u{116AA}\u{116AC}\u{116AE}\u{116AF}\u{116B6}\u{116B8}\u{116B9}\u{116C0}-\u{116C9}\u{11700}-\u{1171A}\u{11720}\u{11721}\u{11726}\u{11730}-\u{11746}\u{11800}-\u{1182E}\u{11838}\u{1183B}\u{118A0}-\u{118F2}\u{118FF}-\u{11906}\u{11909}\u{1190C}-\u{11913}\u{11915}\u{11916}\u{11918}-\u{11935}\u{11937}\u{11938}\u{1193D}\u{1193F}-\u{11942}\u{11944}-\u{11946}\u{11950}-\u{11959}\u{119A0}-\u{119A7}\u{119AA}-\u{119D3}\u{119DC}-\u{119DF}\u{119E1}-\u{119E4}\u{11A00}\u{11A07}\u{11A08}\u{11A0B}-\u{11A32}\u{11A39}\u{11A3A}\u{11A3F}-\u{11A46}\u{11A50}\u{11A57}\u{11A58}\u{11A5C}-\u{11A89}\u{11A97}\u{11A9A}-\u{11AA2}\u{11AB0}-\u{11AF8}\u{11B00}-\u{11B09}\u{11C00}-\u{11C08}\u{11C0A}-\u{11C2F}\u{11C3E}-\u{11C45}\u{11C50}-\u{11C6C}\u{11C70}-\u{11C8F}\u{11CA9}\u{11CB1}\u{11CB4}\u{11D00}-\u{11D06}\u{11D08}\u{11D09}\u{11D0B}-\u{11D30}\u{11D46}\u{11D50}-\u{11D59}\u{11D60}-\u{11D65}\u{11D67}\u{11D68}\u{11D6A}-\u{11D8E}\u{11D93}\u{11D94}\u{11D96}\u{11D98}\u{11DA0}-\u{11DA9}\u{11EE0}-\u{11EF2}\u{11EF5}-\u{11EF8}\u{11F02}-\u{11F10}\u{11F12}-\u{11F35}\u{11F3E}\u{11F3F}\u{11F41}\u{11F43}-\u{11F59}\u{11FB0}\u{11FC0}-\u{11FD4}\u{11FFF}-\u{12399}\u{12400}-\u{1246E}\u{12470}-\u{12474}\u{12480}-\u{12543}\u{12F90}-\u{12FF2}\u{13000}-\u{1343F}\u{13441}-\u{13446}\u{14400}-\u{14646}\u{16800}-\u{16A38}\u{16A40}-\u{16A5E}\u{16A60}-\u{16A69}\u{16A6E}-\u{16ABE}\u{16AC0}-\u{16AC9}\u{16AD0}-\u{16AED}\u{16AF5}\u{16B00}-\u{16B2F}\u{16B37}-\u{16B45}\u{16B50}-\u{16B59}\u{16B5B}-\u{16B61}\u{16B63}-\u{16B77}\u{16B7D}-\u{16B8F}\u{16E40}-\u{16E9A}\u{16F00}-\u{16F4A}\u{16F50}-\u{16F87}\u{16F93}-\u{16F9F}\u{16FE0}\u{16FE1}\u{16FE3}\u{16FF0}\u{16FF1}\u{17000}-\u{187F7}\u{18800}-\u{18CD5}\u{18D00}-\u{18D08}\u{1AFF0}-\u{1AFF3}\u{1AFF5}-\u{1AFFB}\u{1AFFD}\u{1AFFE}\u{1B000}-\u{1B122}\u{1B132}\u{1B150}-\u{1B152}\u{1B155}\u{1B164}-\u{1B167}\u{1B170}-\u{1B2FB}\u{1BC00}-\u{1BC6A}\u{1BC70}-\u{1BC7C}\u{1BC80}-\u{1BC88}\u{1BC90}-\u{1BC99}\u{1BC9C}\u{1BC9F}\u{1CF50}-\u{1CFC3}\u{1D000}-\u{1D0F5}\u{1D100}-\u{1D126}\u{1D129}-\u{1D166}\u{1D16A}-\u{1D172}\u{1D183}\u{1D184}\u{1D18C}-\u{1D1A9}\u{1D1AE}-\u{1D1E8}\u{1D2C0}-\u{1D2D3}\u{1D2E0}-\u{1D2F3}\u{1D360}-\u{1D378}\u{1D400}-\u{1D454}\u{1D456}-\u{1D49C}\u{1D49E}\u{1D49F}\u{1D4A2}\u{1D4A5}\u{1D4A6}\u{1D4A9}-\u{1D4AC}\u{1D4AE}-\u{1D4B9}\u{1D4BB}\u{1D4BD}-\u{1D4C3}\u{1D4C5}-\u{1D505}\u{1D507}-\u{1D50A}\u{1D50D}-\u{1D514}\u{1D516}-\u{1D51C}\u{1D51E}-\u{1D539}\u{1D53B}-\u{1D53E}\u{1D540}-\u{1D544}\u{1D546}\u{1D54A}-\u{1D550}\u{1D552}-\u{1D6A5}\u{1D6A8}-\u{1D6DA}\u{1D6DC}-\u{1D714}\u{1D716}-\u{1D74E}\u{1D750}-\u{1D788}\u{1D78A}-\u{1D7C2}\u{1D7C4}-\u{1D7CB}\u{1D800}-\u{1D9FF}\u{1DA37}-\u{1DA3A}\u{1DA6D}-\u{1DA74}\u{1DA76}-\u{1DA83}\u{1DA85}-\u{1DA8B}\u{1DF00}-\u{1DF1E}\u{1DF25}-\u{1DF2A}\u{1E030}-\u{1E06D}\u{1E100}-\u{1E12C}\u{1E137}-\u{1E13D}\u{1E140}-\u{1E149}\u{1E14E}\u{1E14F}\u{1E290}-\u{1E2AD}\u{1E2C0}-\u{1E2EB}\u{1E2F0}-\u{1E2F9}\u{1E4D0}-\u{1E4EB}\u{1E4F0}-\u{1E4F9}\u{1E7E0}-\u{1E7E6}\u{1E7E8}-\u{1E7EB}\u{1E7ED}\u{1E7EE}\u{1E7F0}-\u{1E7FE}\u{1F110}-\u{1F12E}\u{1F130}-\u{1F169}\u{1F170}-\u{1F1AC}\u{1F1E6}-\u{1F202}\u{1F210}-\u{1F23B}\u{1F240}-\u{1F248}\u{1F250}\u{1F251}\u{20000}-\u{2A6DF}\u{2A700}-\u{2B739}\u{2B740}-\u{2B81D}\u{2B820}-\u{2CEA1}\u{2CEB0}-\u{2EBE0}\u{2EBF0}-\u{2EE5D}\u{2F800}-\u{2FA1D}\u{30000}-\u{3134A}\u{31350}-\u{323AF}\u{F0000}-\u{FFFFD}\u{100000}-\u{10FFFD}]/u;
+const bidiS1RTL = /[\u05BE\u05C0\u05C3\u05C6\u05D0-\u05EA\u05EF-\u05F4\u0608\u060B\u060D\u061B-\u064A\u066D-\u066F\u0671-\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u070D\u070F\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07C0-\u07EA\u07F4\u07F5\u07FA\u07FE-\u0815\u081A\u0824\u0828\u0830-\u083E\u0840-\u0858\u085E\u0860-\u086A\u0870-\u088E\u08A0-\u08C9\u200F\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBC2\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFC\uFE70-\uFE74\uFE76-\uFEFC\u{10800}-\u{10805}\u{10808}\u{1080A}-\u{10835}\u{10837}\u{10838}\u{1083C}\u{1083F}-\u{10855}\u{10857}-\u{1089E}\u{108A7}-\u{108AF}\u{108E0}-\u{108F2}\u{108F4}\u{108F5}\u{108FB}-\u{1091B}\u{10920}-\u{10939}\u{1093F}\u{10980}-\u{109B7}\u{109BC}-\u{109CF}\u{109D2}-\u{10A00}\u{10A10}-\u{10A13}\u{10A15}-\u{10A17}\u{10A19}-\u{10A35}\u{10A40}-\u{10A48}\u{10A50}-\u{10A58}\u{10A60}-\u{10A9F}\u{10AC0}-\u{10AE4}\u{10AEB}-\u{10AF6}\u{10B00}-\u{10B35}\u{10B40}-\u{10B55}\u{10B58}-\u{10B72}\u{10B78}-\u{10B91}\u{10B99}-\u{10B9C}\u{10BA9}-\u{10BAF}\u{10C00}-\u{10C48}\u{10C80}-\u{10CB2}\u{10CC0}-\u{10CF2}\u{10CFA}-\u{10D23}\u{10E80}-\u{10EA9}\u{10EAD}\u{10EB0}\u{10EB1}\u{10F00}-\u{10F27}\u{10F30}-\u{10F45}\u{10F51}-\u{10F59}\u{10F70}-\u{10F81}\u{10F86}-\u{10F89}\u{10FB0}-\u{10FCB}\u{10FE0}-\u{10FF6}\u{1E800}-\u{1E8C4}\u{1E8C7}-\u{1E8CF}\u{1E900}-\u{1E943}\u{1E94B}\u{1E950}-\u{1E959}\u{1E95E}\u{1E95F}\u{1EC71}-\u{1ECB4}\u{1ED01}-\u{1ED3D}\u{1EE00}-\u{1EE03}\u{1EE05}-\u{1EE1F}\u{1EE21}\u{1EE22}\u{1EE24}\u{1EE27}\u{1EE29}-\u{1EE32}\u{1EE34}-\u{1EE37}\u{1EE39}\u{1EE3B}\u{1EE42}\u{1EE47}\u{1EE49}\u{1EE4B}\u{1EE4D}-\u{1EE4F}\u{1EE51}\u{1EE52}\u{1EE54}\u{1EE57}\u{1EE59}\u{1EE5B}\u{1EE5D}\u{1EE5F}\u{1EE61}\u{1EE62}\u{1EE64}\u{1EE67}-\u{1EE6A}\u{1EE6C}-\u{1EE72}\u{1EE74}-\u{1EE77}\u{1EE79}-\u{1EE7C}\u{1EE7E}\u{1EE80}-\u{1EE89}\u{1EE8B}-\u{1EE9B}\u{1EEA1}-\u{1EEA3}\u{1EEA5}-\u{1EEA9}\u{1EEAB}-\u{1EEBB}]/u;
+const bidiS2 = /^[\0-\x08\x0E-\x1B!-@\[-`\{-\x84\x86-\xA9\xAB-\xB4\xB6-\xB9\xBB-\xBF\xD7\xF7\u02B9\u02BA\u02C2-\u02CF\u02D2-\u02DF\u02E5-\u02ED\u02EF-\u036F\u0374\u0375\u037E\u0384\u0385\u0387\u03F6\u0483-\u0489\u058A\u058D-\u058F\u0591-\u05C7\u05D0-\u05EA\u05EF-\u05F4\u0600-\u070D\u070F-\u074A\u074D-\u07B1\u07C0-\u07FA\u07FD-\u082D\u0830-\u083E\u0840-\u085B\u085E\u0860-\u086A\u0870-\u088E\u0890\u0891\u0898-\u0902\u093A\u093C\u0941-\u0948\u094D\u0951-\u0957\u0962\u0963\u0981\u09BC\u09C1-\u09C4\u09CD\u09E2\u09E3\u09F2\u09F3\u09FB\u09FE\u0A01\u0A02\u0A3C\u0A41\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A70\u0A71\u0A75\u0A81\u0A82\u0ABC\u0AC1-\u0AC5\u0AC7\u0AC8\u0ACD\u0AE2\u0AE3\u0AF1\u0AFA-\u0AFF\u0B01\u0B3C\u0B3F\u0B41-\u0B44\u0B4D\u0B55\u0B56\u0B62\u0B63\u0B82\u0BC0\u0BCD\u0BF3-\u0BFA\u0C00\u0C04\u0C3C\u0C3E-\u0C40\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C62\u0C63\u0C78-\u0C7E\u0C81\u0CBC\u0CCC\u0CCD\u0CE2\u0CE3\u0D00\u0D01\u0D3B\u0D3C\u0D41-\u0D44\u0D4D\u0D62\u0D63\u0D81\u0DCA\u0DD2-\u0DD4\u0DD6\u0E31\u0E34-\u0E3A\u0E3F\u0E47-\u0E4E\u0EB1\u0EB4-\u0EBC\u0EC8-\u0ECE\u0F18\u0F19\u0F35\u0F37\u0F39-\u0F3D\u0F71-\u0F7E\u0F80-\u0F84\u0F86\u0F87\u0F8D-\u0F97\u0F99-\u0FBC\u0FC6\u102D-\u1030\u1032-\u1037\u1039\u103A\u103D\u103E\u1058\u1059\u105E-\u1060\u1071-\u1074\u1082\u1085\u1086\u108D\u109D\u135D-\u135F\u1390-\u1399\u1400\u169B\u169C\u1712-\u1714\u1732\u1733\u1752\u1753\u1772\u1773\u17B4\u17B5\u17B7-\u17BD\u17C6\u17C9-\u17D3\u17DB\u17DD\u17F0-\u17F9\u1800-\u180F\u1885\u1886\u18A9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193B\u1940\u1944\u1945\u19DE-\u19FF\u1A17\u1A18\u1A1B\u1A56\u1A58-\u1A5E\u1A60\u1A62\u1A65-\u1A6C\u1A73-\u1A7C\u1A7F\u1AB0-\u1ACE\u1B00-\u1B03\u1B34\u1B36-\u1B3A\u1B3C\u1B42\u1B6B-\u1B73\u1B80\u1B81\u1BA2-\u1BA5\u1BA8\u1BA9\u1BAB-\u1BAD\u1BE6\u1BE8\u1BE9\u1BED\u1BEF-\u1BF1\u1C2C-\u1C33\u1C36\u1C37\u1CD0-\u1CD2\u1CD4-\u1CE0\u1CE2-\u1CE8\u1CED\u1CF4\u1CF8\u1CF9\u1DC0-\u1DFF\u1FBD\u1FBF-\u1FC1\u1FCD-\u1FCF\u1FDD-\u1FDF\u1FED-\u1FEF\u1FFD\u1FFE\u200B-\u200D\u200F-\u2027\u202F-\u205E\u2060-\u2064\u206A-\u2070\u2074-\u207E\u2080-\u208E\u20A0-\u20C0\u20D0-\u20F0\u2100\u2101\u2103-\u2106\u2108\u2109\u2114\u2116-\u2118\u211E-\u2123\u2125\u2127\u2129\u212E\u213A\u213B\u2140-\u2144\u214A-\u214D\u2150-\u215F\u2189-\u218B\u2190-\u2335\u237B-\u2394\u2396-\u2426\u2440-\u244A\u2460-\u249B\u24EA-\u26AB\u26AD-\u27FF\u2900-\u2B73\u2B76-\u2B95\u2B97-\u2BFF\u2CE5-\u2CEA\u2CEF-\u2CF1\u2CF9-\u2CFF\u2D7F\u2DE0-\u2E5D\u2E80-\u2E99\u2E9B-\u2EF3\u2F00-\u2FD5\u2FF0-\u2FFF\u3001-\u3004\u3008-\u3020\u302A-\u302D\u3030\u3036\u3037\u303D-\u303F\u3099-\u309C\u30A0\u30FB\u31C0-\u31E3\u31EF\u321D\u321E\u3250-\u325F\u327C-\u327E\u32B1-\u32BF\u32CC-\u32CF\u3377-\u337A\u33DE\u33DF\u33FF\u4DC0-\u4DFF\uA490-\uA4C6\uA60D-\uA60F\uA66F-\uA67F\uA69E\uA69F\uA6F0\uA6F1\uA700-\uA721\uA788\uA802\uA806\uA80B\uA825\uA826\uA828-\uA82C\uA838\uA839\uA874-\uA877\uA8C4\uA8C5\uA8E0-\uA8F1\uA8FF\uA926-\uA92D\uA947-\uA951\uA980-\uA982\uA9B3\uA9B6-\uA9B9\uA9BC\uA9BD\uA9E5\uAA29-\uAA2E\uAA31\uAA32\uAA35\uAA36\uAA43\uAA4C\uAA7C\uAAB0\uAAB2-\uAAB4\uAAB7\uAAB8\uAABE\uAABF\uAAC1\uAAEC\uAAED\uAAF6\uAB6A\uAB6B\uABE5\uABE8\uABED\uFB1D-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBC2\uFBD3-\uFD8F\uFD92-\uFDC7\uFDCF\uFDF0-\uFE19\uFE20-\uFE52\uFE54-\uFE66\uFE68-\uFE6B\uFE70-\uFE74\uFE76-\uFEFC\uFEFF\uFF01-\uFF20\uFF3B-\uFF40\uFF5B-\uFF65\uFFE0-\uFFE6\uFFE8-\uFFEE\uFFF9-\uFFFD\u{10101}\u{10140}-\u{1018C}\u{10190}-\u{1019C}\u{101A0}\u{101FD}\u{102E0}-\u{102FB}\u{10376}-\u{1037A}\u{10800}-\u{10805}\u{10808}\u{1080A}-\u{10835}\u{10837}\u{10838}\u{1083C}\u{1083F}-\u{10855}\u{10857}-\u{1089E}\u{108A7}-\u{108AF}\u{108E0}-\u{108F2}\u{108F4}\u{108F5}\u{108FB}-\u{1091B}\u{1091F}-\u{10939}\u{1093F}\u{10980}-\u{109B7}\u{109BC}-\u{109CF}\u{109D2}-\u{10A03}\u{10A05}\u{10A06}\u{10A0C}-\u{10A13}\u{10A15}-\u{10A17}\u{10A19}-\u{10A35}\u{10A38}-\u{10A3A}\u{10A3F}-\u{10A48}\u{10A50}-\u{10A58}\u{10A60}-\u{10A9F}\u{10AC0}-\u{10AE6}\u{10AEB}-\u{10AF6}\u{10B00}-\u{10B35}\u{10B39}-\u{10B55}\u{10B58}-\u{10B72}\u{10B78}-\u{10B91}\u{10B99}-\u{10B9C}\u{10BA9}-\u{10BAF}\u{10C00}-\u{10C48}\u{10C80}-\u{10CB2}\u{10CC0}-\u{10CF2}\u{10CFA}-\u{10D27}\u{10D30}-\u{10D39}\u{10E60}-\u{10E7E}\u{10E80}-\u{10EA9}\u{10EAB}-\u{10EAD}\u{10EB0}\u{10EB1}\u{10EFD}-\u{10F27}\u{10F30}-\u{10F59}\u{10F70}-\u{10F89}\u{10FB0}-\u{10FCB}\u{10FE0}-\u{10FF6}\u{11001}\u{11038}-\u{11046}\u{11052}-\u{11065}\u{11070}\u{11073}\u{11074}\u{1107F}-\u{11081}\u{110B3}-\u{110B6}\u{110B9}\u{110BA}\u{110C2}\u{11100}-\u{11102}\u{11127}-\u{1112B}\u{1112D}-\u{11134}\u{11173}\u{11180}\u{11181}\u{111B6}-\u{111BE}\u{111C9}-\u{111CC}\u{111CF}\u{1122F}-\u{11231}\u{11234}\u{11236}\u{11237}\u{1123E}\u{11241}\u{112DF}\u{112E3}-\u{112EA}\u{11300}\u{11301}\u{1133B}\u{1133C}\u{11340}\u{11366}-\u{1136C}\u{11370}-\u{11374}\u{11438}-\u{1143F}\u{11442}-\u{11444}\u{11446}\u{1145E}\u{114B3}-\u{114B8}\u{114BA}\u{114BF}\u{114C0}\u{114C2}\u{114C3}\u{115B2}-\u{115B5}\u{115BC}\u{115BD}\u{115BF}\u{115C0}\u{115DC}\u{115DD}\u{11633}-\u{1163A}\u{1163D}\u{1163F}\u{11640}\u{11660}-\u{1166C}\u{116AB}\u{116AD}\u{116B0}-\u{116B5}\u{116B7}\u{1171D}-\u{1171F}\u{11722}-\u{11725}\u{11727}-\u{1172B}\u{1182F}-\u{11837}\u{11839}\u{1183A}\u{1193B}\u{1193C}\u{1193E}\u{11943}\u{119D4}-\u{119D7}\u{119DA}\u{119DB}\u{119E0}\u{11A01}-\u{11A06}\u{11A09}\u{11A0A}\u{11A33}-\u{11A38}\u{11A3B}-\u{11A3E}\u{11A47}\u{11A51}-\u{11A56}\u{11A59}-\u{11A5B}\u{11A8A}-\u{11A96}\u{11A98}\u{11A99}\u{11C30}-\u{11C36}\u{11C38}-\u{11C3D}\u{11C92}-\u{11CA7}\u{11CAA}-\u{11CB0}\u{11CB2}\u{11CB3}\u{11CB5}\u{11CB6}\u{11D31}-\u{11D36}\u{11D3A}\u{11D3C}\u{11D3D}\u{11D3F}-\u{11D45}\u{11D47}\u{11D90}\u{11D91}\u{11D95}\u{11D97}\u{11EF3}\u{11EF4}\u{11F00}\u{11F01}\u{11F36}-\u{11F3A}\u{11F40}\u{11F42}\u{11FD5}-\u{11FF1}\u{13440}\u{13447}-\u{13455}\u{16AF0}-\u{16AF4}\u{16B30}-\u{16B36}\u{16F4F}\u{16F8F}-\u{16F92}\u{16FE2}\u{16FE4}\u{1BC9D}\u{1BC9E}\u{1BCA0}-\u{1BCA3}\u{1CF00}-\u{1CF2D}\u{1CF30}-\u{1CF46}\u{1D167}-\u{1D169}\u{1D173}-\u{1D182}\u{1D185}-\u{1D18B}\u{1D1AA}-\u{1D1AD}\u{1D1E9}\u{1D1EA}\u{1D200}-\u{1D245}\u{1D300}-\u{1D356}\u{1D6DB}\u{1D715}\u{1D74F}\u{1D789}\u{1D7C3}\u{1D7CE}-\u{1D7FF}\u{1DA00}-\u{1DA36}\u{1DA3B}-\u{1DA6C}\u{1DA75}\u{1DA84}\u{1DA9B}-\u{1DA9F}\u{1DAA1}-\u{1DAAF}\u{1E000}-\u{1E006}\u{1E008}-\u{1E018}\u{1E01B}-\u{1E021}\u{1E023}\u{1E024}\u{1E026}-\u{1E02A}\u{1E08F}\u{1E130}-\u{1E136}\u{1E2AE}\u{1E2EC}-\u{1E2EF}\u{1E2FF}\u{1E4EC}-\u{1E4EF}\u{1E800}-\u{1E8C4}\u{1E8C7}-\u{1E8D6}\u{1E900}-\u{1E94B}\u{1E950}-\u{1E959}\u{1E95E}\u{1E95F}\u{1EC71}-\u{1ECB4}\u{1ED01}-\u{1ED3D}\u{1EE00}-\u{1EE03}\u{1EE05}-\u{1EE1F}\u{1EE21}\u{1EE22}\u{1EE24}\u{1EE27}\u{1EE29}-\u{1EE32}\u{1EE34}-\u{1EE37}\u{1EE39}\u{1EE3B}\u{1EE42}\u{1EE47}\u{1EE49}\u{1EE4B}\u{1EE4D}-\u{1EE4F}\u{1EE51}\u{1EE52}\u{1EE54}\u{1EE57}\u{1EE59}\u{1EE5B}\u{1EE5D}\u{1EE5F}\u{1EE61}\u{1EE62}\u{1EE64}\u{1EE67}-\u{1EE6A}\u{1EE6C}-\u{1EE72}\u{1EE74}-\u{1EE77}\u{1EE79}-\u{1EE7C}\u{1EE7E}\u{1EE80}-\u{1EE89}\u{1EE8B}-\u{1EE9B}\u{1EEA1}-\u{1EEA3}\u{1EEA5}-\u{1EEA9}\u{1EEAB}-\u{1EEBB}\u{1EEF0}\u{1EEF1}\u{1F000}-\u{1F02B}\u{1F030}-\u{1F093}\u{1F0A0}-\u{1F0AE}\u{1F0B1}-\u{1F0BF}\u{1F0C1}-\u{1F0CF}\u{1F0D1}-\u{1F0F5}\u{1F100}-\u{1F10F}\u{1F12F}\u{1F16A}-\u{1F16F}\u{1F1AD}\u{1F260}-\u{1F265}\u{1F300}-\u{1F6D7}\u{1F6DC}-\u{1F6EC}\u{1F6F0}-\u{1F6FC}\u{1F700}-\u{1F776}\u{1F77B}-\u{1F7D9}\u{1F7E0}-\u{1F7EB}\u{1F7F0}\u{1F800}-\u{1F80B}\u{1F810}-\u{1F847}\u{1F850}-\u{1F859}\u{1F860}-\u{1F887}\u{1F890}-\u{1F8AD}\u{1F8B0}\u{1F8B1}\u{1F900}-\u{1FA53}\u{1FA60}-\u{1FA6D}\u{1FA70}-\u{1FA7C}\u{1FA80}-\u{1FA88}\u{1FA90}-\u{1FABD}\u{1FABF}-\u{1FAC5}\u{1FACE}-\u{1FADB}\u{1FAE0}-\u{1FAE8}\u{1FAF0}-\u{1FAF8}\u{1FB00}-\u{1FB92}\u{1FB94}-\u{1FBCA}\u{1FBF0}-\u{1FBF9}\u{E0001}\u{E0020}-\u{E007F}\u{E0100}-\u{E01EF}]*$/u;
+const bidiS3 = /[0-9\xB2\xB3\xB9\u05BE\u05C0\u05C3\u05C6\u05D0-\u05EA\u05EF-\u05F4\u0600-\u0605\u0608\u060B\u060D\u061B-\u064A\u0660-\u0669\u066B-\u066F\u0671-\u06D5\u06DD\u06E5\u06E6\u06EE-\u070D\u070F\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07C0-\u07EA\u07F4\u07F5\u07FA\u07FE-\u0815\u081A\u0824\u0828\u0830-\u083E\u0840-\u0858\u085E\u0860-\u086A\u0870-\u088E\u0890\u0891\u08A0-\u08C9\u08E2\u200F\u2070\u2074-\u2079\u2080-\u2089\u2488-\u249B\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBC2\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFC\uFE70-\uFE74\uFE76-\uFEFC\uFF10-\uFF19\u{102E1}-\u{102FB}\u{10800}-\u{10805}\u{10808}\u{1080A}-\u{10835}\u{10837}\u{10838}\u{1083C}\u{1083F}-\u{10855}\u{10857}-\u{1089E}\u{108A7}-\u{108AF}\u{108E0}-\u{108F2}\u{108F4}\u{108F5}\u{108FB}-\u{1091B}\u{10920}-\u{10939}\u{1093F}\u{10980}-\u{109B7}\u{109BC}-\u{109CF}\u{109D2}-\u{10A00}\u{10A10}-\u{10A13}\u{10A15}-\u{10A17}\u{10A19}-\u{10A35}\u{10A40}-\u{10A48}\u{10A50}-\u{10A58}\u{10A60}-\u{10A9F}\u{10AC0}-\u{10AE4}\u{10AEB}-\u{10AF6}\u{10B00}-\u{10B35}\u{10B40}-\u{10B55}\u{10B58}-\u{10B72}\u{10B78}-\u{10B91}\u{10B99}-\u{10B9C}\u{10BA9}-\u{10BAF}\u{10C00}-\u{10C48}\u{10C80}-\u{10CB2}\u{10CC0}-\u{10CF2}\u{10CFA}-\u{10D23}\u{10D30}-\u{10D39}\u{10E60}-\u{10E7E}\u{10E80}-\u{10EA9}\u{10EAD}\u{10EB0}\u{10EB1}\u{10F00}-\u{10F27}\u{10F30}-\u{10F45}\u{10F51}-\u{10F59}\u{10F70}-\u{10F81}\u{10F86}-\u{10F89}\u{10FB0}-\u{10FCB}\u{10FE0}-\u{10FF6}\u{1D7CE}-\u{1D7FF}\u{1E800}-\u{1E8C4}\u{1E8C7}-\u{1E8CF}\u{1E900}-\u{1E943}\u{1E94B}\u{1E950}-\u{1E959}\u{1E95E}\u{1E95F}\u{1EC71}-\u{1ECB4}\u{1ED01}-\u{1ED3D}\u{1EE00}-\u{1EE03}\u{1EE05}-\u{1EE1F}\u{1EE21}\u{1EE22}\u{1EE24}\u{1EE27}\u{1EE29}-\u{1EE32}\u{1EE34}-\u{1EE37}\u{1EE39}\u{1EE3B}\u{1EE42}\u{1EE47}\u{1EE49}\u{1EE4B}\u{1EE4D}-\u{1EE4F}\u{1EE51}\u{1EE52}\u{1EE54}\u{1EE57}\u{1EE59}\u{1EE5B}\u{1EE5D}\u{1EE5F}\u{1EE61}\u{1EE62}\u{1EE64}\u{1EE67}-\u{1EE6A}\u{1EE6C}-\u{1EE72}\u{1EE74}-\u{1EE77}\u{1EE79}-\u{1EE7C}\u{1EE7E}\u{1EE80}-\u{1EE89}\u{1EE8B}-\u{1EE9B}\u{1EEA1}-\u{1EEA3}\u{1EEA5}-\u{1EEA9}\u{1EEAB}-\u{1EEBB}\u{1F100}-\u{1F10A}\u{1FBF0}-\u{1FBF9}][\u0300-\u036F\u0483-\u0489\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u0610-\u061A\u064B-\u065F\u0670\u06D6-\u06DC\u06DF-\u06E4\u06E7\u06E8\u06EA-\u06ED\u0711\u0730-\u074A\u07A6-\u07B0\u07EB-\u07F3\u07FD\u0816-\u0819\u081B-\u0823\u0825-\u0827\u0829-\u082D\u0859-\u085B\u0898-\u089F\u08CA-\u08E1\u08E3-\u0902\u093A\u093C\u0941-\u0948\u094D\u0951-\u0957\u0962\u0963\u0981\u09BC\u09C1-\u09C4\u09CD\u09E2\u09E3\u09FE\u0A01\u0A02\u0A3C\u0A41\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A70\u0A71\u0A75\u0A81\u0A82\u0ABC\u0AC1-\u0AC5\u0AC7\u0AC8\u0ACD\u0AE2\u0AE3\u0AFA-\u0AFF\u0B01\u0B3C\u0B3F\u0B41-\u0B44\u0B4D\u0B55\u0B56\u0B62\u0B63\u0B82\u0BC0\u0BCD\u0C00\u0C04\u0C3C\u0C3E-\u0C40\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C62\u0C63\u0C81\u0CBC\u0CCC\u0CCD\u0CE2\u0CE3\u0D00\u0D01\u0D3B\u0D3C\u0D41-\u0D44\u0D4D\u0D62\u0D63\u0D81\u0DCA\u0DD2-\u0DD4\u0DD6\u0E31\u0E34-\u0E3A\u0E47-\u0E4E\u0EB1\u0EB4-\u0EBC\u0EC8-\u0ECE\u0F18\u0F19\u0F35\u0F37\u0F39\u0F71-\u0F7E\u0F80-\u0F84\u0F86\u0F87\u0F8D-\u0F97\u0F99-\u0FBC\u0FC6\u102D-\u1030\u1032-\u1037\u1039\u103A\u103D\u103E\u1058\u1059\u105E-\u1060\u1071-\u1074\u1082\u1085\u1086\u108D\u109D\u135D-\u135F\u1712-\u1714\u1732\u1733\u1752\u1753\u1772\u1773\u17B4\u17B5\u17B7-\u17BD\u17C6\u17C9-\u17D3\u17DD\u180B-\u180D\u180F\u1885\u1886\u18A9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193B\u1A17\u1A18\u1A1B\u1A56\u1A58-\u1A5E\u1A60\u1A62\u1A65-\u1A6C\u1A73-\u1A7C\u1A7F\u1AB0-\u1ACE\u1B00-\u1B03\u1B34\u1B36-\u1B3A\u1B3C\u1B42\u1B6B-\u1B73\u1B80\u1B81\u1BA2-\u1BA5\u1BA8\u1BA9\u1BAB-\u1BAD\u1BE6\u1BE8\u1BE9\u1BED\u1BEF-\u1BF1\u1C2C-\u1C33\u1C36\u1C37\u1CD0-\u1CD2\u1CD4-\u1CE0\u1CE2-\u1CE8\u1CED\u1CF4\u1CF8\u1CF9\u1DC0-\u1DFF\u20D0-\u20F0\u2CEF-\u2CF1\u2D7F\u2DE0-\u2DFF\u302A-\u302D\u3099\u309A\uA66F-\uA672\uA674-\uA67D\uA69E\uA69F\uA6F0\uA6F1\uA802\uA806\uA80B\uA825\uA826\uA82C\uA8C4\uA8C5\uA8E0-\uA8F1\uA8FF\uA926-\uA92D\uA947-\uA951\uA980-\uA982\uA9B3\uA9B6-\uA9B9\uA9BC\uA9BD\uA9E5\uAA29-\uAA2E\uAA31\uAA32\uAA35\uAA36\uAA43\uAA4C\uAA7C\uAAB0\uAAB2-\uAAB4\uAAB7\uAAB8\uAABE\uAABF\uAAC1\uAAEC\uAAED\uAAF6\uABE5\uABE8\uABED\uFB1E\uFE00-\uFE0F\uFE20-\uFE2F\u{101FD}\u{102E0}\u{10376}-\u{1037A}\u{10A01}-\u{10A03}\u{10A05}\u{10A06}\u{10A0C}-\u{10A0F}\u{10A38}-\u{10A3A}\u{10A3F}\u{10AE5}\u{10AE6}\u{10D24}-\u{10D27}\u{10EAB}\u{10EAC}\u{10EFD}-\u{10EFF}\u{10F46}-\u{10F50}\u{10F82}-\u{10F85}\u{11001}\u{11038}-\u{11046}\u{11070}\u{11073}\u{11074}\u{1107F}-\u{11081}\u{110B3}-\u{110B6}\u{110B9}\u{110BA}\u{110C2}\u{11100}-\u{11102}\u{11127}-\u{1112B}\u{1112D}-\u{11134}\u{11173}\u{11180}\u{11181}\u{111B6}-\u{111BE}\u{111C9}-\u{111CC}\u{111CF}\u{1122F}-\u{11231}\u{11234}\u{11236}\u{11237}\u{1123E}\u{11241}\u{112DF}\u{112E3}-\u{112EA}\u{11300}\u{11301}\u{1133B}\u{1133C}\u{11340}\u{11366}-\u{1136C}\u{11370}-\u{11374}\u{11438}-\u{1143F}\u{11442}-\u{11444}\u{11446}\u{1145E}\u{114B3}-\u{114B8}\u{114BA}\u{114BF}\u{114C0}\u{114C2}\u{114C3}\u{115B2}-\u{115B5}\u{115BC}\u{115BD}\u{115BF}\u{115C0}\u{115DC}\u{115DD}\u{11633}-\u{1163A}\u{1163D}\u{1163F}\u{11640}\u{116AB}\u{116AD}\u{116B0}-\u{116B5}\u{116B7}\u{1171D}-\u{1171F}\u{11722}-\u{11725}\u{11727}-\u{1172B}\u{1182F}-\u{11837}\u{11839}\u{1183A}\u{1193B}\u{1193C}\u{1193E}\u{11943}\u{119D4}-\u{119D7}\u{119DA}\u{119DB}\u{119E0}\u{11A01}-\u{11A06}\u{11A09}\u{11A0A}\u{11A33}-\u{11A38}\u{11A3B}-\u{11A3E}\u{11A47}\u{11A51}-\u{11A56}\u{11A59}-\u{11A5B}\u{11A8A}-\u{11A96}\u{11A98}\u{11A99}\u{11C30}-\u{11C36}\u{11C38}-\u{11C3D}\u{11C92}-\u{11CA7}\u{11CAA}-\u{11CB0}\u{11CB2}\u{11CB3}\u{11CB5}\u{11CB6}\u{11D31}-\u{11D36}\u{11D3A}\u{11D3C}\u{11D3D}\u{11D3F}-\u{11D45}\u{11D47}\u{11D90}\u{11D91}\u{11D95}\u{11D97}\u{11EF3}\u{11EF4}\u{11F00}\u{11F01}\u{11F36}-\u{11F3A}\u{11F40}\u{11F42}\u{13440}\u{13447}-\u{13455}\u{16AF0}-\u{16AF4}\u{16B30}-\u{16B36}\u{16F4F}\u{16F8F}-\u{16F92}\u{16FE4}\u{1BC9D}\u{1BC9E}\u{1CF00}-\u{1CF2D}\u{1CF30}-\u{1CF46}\u{1D167}-\u{1D169}\u{1D17B}-\u{1D182}\u{1D185}-\u{1D18B}\u{1D1AA}-\u{1D1AD}\u{1D242}-\u{1D244}\u{1DA00}-\u{1DA36}\u{1DA3B}-\u{1DA6C}\u{1DA75}\u{1DA84}\u{1DA9B}-\u{1DA9F}\u{1DAA1}-\u{1DAAF}\u{1E000}-\u{1E006}\u{1E008}-\u{1E018}\u{1E01B}-\u{1E021}\u{1E023}\u{1E024}\u{1E026}-\u{1E02A}\u{1E08F}\u{1E130}-\u{1E136}\u{1E2AE}\u{1E2EC}-\u{1E2EF}\u{1E4EC}-\u{1E4EF}\u{1E8D0}-\u{1E8D6}\u{1E944}-\u{1E94A}\u{E0100}-\u{E01EF}]*$/u;
+const bidiS4EN = /[0-9\xB2\xB3\xB9\u06F0-\u06F9\u2070\u2074-\u2079\u2080-\u2089\u2488-\u249B\uFF10-\uFF19\u{102E1}-\u{102FB}\u{1D7CE}-\u{1D7FF}\u{1F100}-\u{1F10A}\u{1FBF0}-\u{1FBF9}]/u;
+const bidiS4AN = /[\u0600-\u0605\u0660-\u0669\u066B\u066C\u06DD\u0890\u0891\u08E2\u{10D30}-\u{10D39}\u{10E60}-\u{10E7E}]/u;
+const bidiS5 = /^[\0-\x08\x0E-\x1B!-\x84\x86-\u0377\u037A-\u037F\u0384-\u038A\u038C\u038E-\u03A1\u03A3-\u052F\u0531-\u0556\u0559-\u058A\u058D-\u058F\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u0606\u0607\u0609\u060A\u060C\u060E-\u061A\u064B-\u065F\u066A\u0670\u06D6-\u06DC\u06DE-\u06E4\u06E7-\u06ED\u06F0-\u06F9\u0711\u0730-\u074A\u07A6-\u07B0\u07EB-\u07F3\u07F6-\u07F9\u07FD\u0816-\u0819\u081B-\u0823\u0825-\u0827\u0829-\u082D\u0859-\u085B\u0898-\u089F\u08CA-\u08E1\u08E3-\u0983\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BC-\u09C4\u09C7\u09C8\u09CB-\u09CE\u09D7\u09DC\u09DD\u09DF-\u09E3\u09E6-\u09FE\u0A01-\u0A03\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A3C\u0A3E-\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A59-\u0A5C\u0A5E\u0A66-\u0A76\u0A81-\u0A83\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABC-\u0AC5\u0AC7-\u0AC9\u0ACB-\u0ACD\u0AD0\u0AE0-\u0AE3\u0AE6-\u0AF1\u0AF9-\u0AFF\u0B01-\u0B03\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3C-\u0B44\u0B47\u0B48\u0B4B-\u0B4D\u0B55-\u0B57\u0B5C\u0B5D\u0B5F-\u0B63\u0B66-\u0B77\u0B82\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCD\u0BD0\u0BD7\u0BE6-\u0BFA\u0C00-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C39\u0C3C-\u0C44\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C58-\u0C5A\u0C5D\u0C60-\u0C63\u0C66-\u0C6F\u0C77-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBC-\u0CC4\u0CC6-\u0CC8\u0CCA-\u0CCD\u0CD5\u0CD6\u0CDD\u0CDE\u0CE0-\u0CE3\u0CE6-\u0CEF\u0CF1-\u0CF3\u0D00-\u0D0C\u0D0E-\u0D10\u0D12-\u0D44\u0D46-\u0D48\u0D4A-\u0D4F\u0D54-\u0D63\u0D66-\u0D7F\u0D81-\u0D83\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0DCA\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DE6-\u0DEF\u0DF2-\u0DF4\u0E01-\u0E3A\u0E3F-\u0E5B\u0E81\u0E82\u0E84\u0E86-\u0E8A\u0E8C-\u0EA3\u0EA5\u0EA7-\u0EBD\u0EC0-\u0EC4\u0EC6\u0EC8-\u0ECE\u0ED0-\u0ED9\u0EDC-\u0EDF\u0F00-\u0F47\u0F49-\u0F6C\u0F71-\u0F97\u0F99-\u0FBC\u0FBE-\u0FCC\u0FCE-\u0FDA\u1000-\u10C5\u10C7\u10CD\u10D0-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u135D-\u137C\u1380-\u1399\u13A0-\u13F5\u13F8-\u13FD\u1400-\u167F\u1681-\u169C\u16A0-\u16F8\u1700-\u1715\u171F-\u1736\u1740-\u1753\u1760-\u176C\u176E-\u1770\u1772\u1773\u1780-\u17DD\u17E0-\u17E9\u17F0-\u17F9\u1800-\u1819\u1820-\u1878\u1880-\u18AA\u18B0-\u18F5\u1900-\u191E\u1920-\u192B\u1930-\u193B\u1940\u1944-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u19D0-\u19DA\u19DE-\u1A1B\u1A1E-\u1A5E\u1A60-\u1A7C\u1A7F-\u1A89\u1A90-\u1A99\u1AA0-\u1AAD\u1AB0-\u1ACE\u1B00-\u1B4C\u1B50-\u1B7E\u1B80-\u1BF3\u1BFC-\u1C37\u1C3B-\u1C49\u1C4D-\u1C88\u1C90-\u1CBA\u1CBD-\u1CC7\u1CD0-\u1CFA\u1D00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FC4\u1FC6-\u1FD3\u1FD6-\u1FDB\u1FDD-\u1FEF\u1FF2-\u1FF4\u1FF6-\u1FFE\u200B-\u200E\u2010-\u2027\u202F-\u205E\u2060-\u2064\u206A-\u2071\u2074-\u208E\u2090-\u209C\u20A0-\u20C0\u20D0-\u20F0\u2100-\u218B\u2190-\u2426\u2440-\u244A\u2460-\u2B73\u2B76-\u2B95\u2B97-\u2CF3\u2CF9-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D70\u2D7F-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2DE0-\u2E5D\u2E80-\u2E99\u2E9B-\u2EF3\u2F00-\u2FD5\u2FF0-\u2FFF\u3001-\u303F\u3041-\u3096\u3099-\u30FF\u3105-\u312F\u3131-\u318E\u3190-\u31E3\u31EF-\u321E\u3220-\uA48C\uA490-\uA4C6\uA4D0-\uA62B\uA640-\uA6F7\uA700-\uA7CA\uA7D0\uA7D1\uA7D3\uA7D5-\uA7D9\uA7F2-\uA82C\uA830-\uA839\uA840-\uA877\uA880-\uA8C5\uA8CE-\uA8D9\uA8E0-\uA953\uA95F-\uA97C\uA980-\uA9CD\uA9CF-\uA9D9\uA9DE-\uA9FE\uAA00-\uAA36\uAA40-\uAA4D\uAA50-\uAA59\uAA5C-\uAAC2\uAADB-\uAAF6\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uAB30-\uAB6B\uAB70-\uABED\uABF0-\uABF9\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uD800-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1E\uFB29\uFD3E-\uFD4F\uFDCF\uFDFD-\uFE19\uFE20-\uFE52\uFE54-\uFE66\uFE68-\uFE6B\uFEFF\uFF01-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC\uFFE0-\uFFE6\uFFE8-\uFFEE\uFFF9-\uFFFD\u{10000}-\u{1000B}\u{1000D}-\u{10026}\u{10028}-\u{1003A}\u{1003C}\u{1003D}\u{1003F}-\u{1004D}\u{10050}-\u{1005D}\u{10080}-\u{100FA}\u{10100}-\u{10102}\u{10107}-\u{10133}\u{10137}-\u{1018E}\u{10190}-\u{1019C}\u{101A0}\u{101D0}-\u{101FD}\u{10280}-\u{1029C}\u{102A0}-\u{102D0}\u{102E0}-\u{102FB}\u{10300}-\u{10323}\u{1032D}-\u{1034A}\u{10350}-\u{1037A}\u{10380}-\u{1039D}\u{1039F}-\u{103C3}\u{103C8}-\u{103D5}\u{10400}-\u{1049D}\u{104A0}-\u{104A9}\u{104B0}-\u{104D3}\u{104D8}-\u{104FB}\u{10500}-\u{10527}\u{10530}-\u{10563}\u{1056F}-\u{1057A}\u{1057C}-\u{1058A}\u{1058C}-\u{10592}\u{10594}\u{10595}\u{10597}-\u{105A1}\u{105A3}-\u{105B1}\u{105B3}-\u{105B9}\u{105BB}\u{105BC}\u{10600}-\u{10736}\u{10740}-\u{10755}\u{10760}-\u{10767}\u{10780}-\u{10785}\u{10787}-\u{107B0}\u{107B2}-\u{107BA}\u{1091F}\u{10A01}-\u{10A03}\u{10A05}\u{10A06}\u{10A0C}-\u{10A0F}\u{10A38}-\u{10A3A}\u{10A3F}\u{10AE5}\u{10AE6}\u{10B39}-\u{10B3F}\u{10D24}-\u{10D27}\u{10EAB}\u{10EAC}\u{10EFD}-\u{10EFF}\u{10F46}-\u{10F50}\u{10F82}-\u{10F85}\u{11000}-\u{1104D}\u{11052}-\u{11075}\u{1107F}-\u{110C2}\u{110CD}\u{110D0}-\u{110E8}\u{110F0}-\u{110F9}\u{11100}-\u{11134}\u{11136}-\u{11147}\u{11150}-\u{11176}\u{11180}-\u{111DF}\u{111E1}-\u{111F4}\u{11200}-\u{11211}\u{11213}-\u{11241}\u{11280}-\u{11286}\u{11288}\u{1128A}-\u{1128D}\u{1128F}-\u{1129D}\u{1129F}-\u{112A9}\u{112B0}-\u{112EA}\u{112F0}-\u{112F9}\u{11300}-\u{11303}\u{11305}-\u{1130C}\u{1130F}\u{11310}\u{11313}-\u{11328}\u{1132A}-\u{11330}\u{11332}\u{11333}\u{11335}-\u{11339}\u{1133B}-\u{11344}\u{11347}\u{11348}\u{1134B}-\u{1134D}\u{11350}\u{11357}\u{1135D}-\u{11363}\u{11366}-\u{1136C}\u{11370}-\u{11374}\u{11400}-\u{1145B}\u{1145D}-\u{11461}\u{11480}-\u{114C7}\u{114D0}-\u{114D9}\u{11580}-\u{115B5}\u{115B8}-\u{115DD}\u{11600}-\u{11644}\u{11650}-\u{11659}\u{11660}-\u{1166C}\u{11680}-\u{116B9}\u{116C0}-\u{116C9}\u{11700}-\u{1171A}\u{1171D}-\u{1172B}\u{11730}-\u{11746}\u{11800}-\u{1183B}\u{118A0}-\u{118F2}\u{118FF}-\u{11906}\u{11909}\u{1190C}-\u{11913}\u{11915}\u{11916}\u{11918}-\u{11935}\u{11937}\u{11938}\u{1193B}-\u{11946}\u{11950}-\u{11959}\u{119A0}-\u{119A7}\u{119AA}-\u{119D7}\u{119DA}-\u{119E4}\u{11A00}-\u{11A47}\u{11A50}-\u{11AA2}\u{11AB0}-\u{11AF8}\u{11B00}-\u{11B09}\u{11C00}-\u{11C08}\u{11C0A}-\u{11C36}\u{11C38}-\u{11C45}\u{11C50}-\u{11C6C}\u{11C70}-\u{11C8F}\u{11C92}-\u{11CA7}\u{11CA9}-\u{11CB6}\u{11D00}-\u{11D06}\u{11D08}\u{11D09}\u{11D0B}-\u{11D36}\u{11D3A}\u{11D3C}\u{11D3D}\u{11D3F}-\u{11D47}\u{11D50}-\u{11D59}\u{11D60}-\u{11D65}\u{11D67}\u{11D68}\u{11D6A}-\u{11D8E}\u{11D90}\u{11D91}\u{11D93}-\u{11D98}\u{11DA0}-\u{11DA9}\u{11EE0}-\u{11EF8}\u{11F00}-\u{11F10}\u{11F12}-\u{11F3A}\u{11F3E}-\u{11F59}\u{11FB0}\u{11FC0}-\u{11FF1}\u{11FFF}-\u{12399}\u{12400}-\u{1246E}\u{12470}-\u{12474}\u{12480}-\u{12543}\u{12F90}-\u{12FF2}\u{13000}-\u{13455}\u{14400}-\u{14646}\u{16800}-\u{16A38}\u{16A40}-\u{16A5E}\u{16A60}-\u{16A69}\u{16A6E}-\u{16ABE}\u{16AC0}-\u{16AC9}\u{16AD0}-\u{16AED}\u{16AF0}-\u{16AF5}\u{16B00}-\u{16B45}\u{16B50}-\u{16B59}\u{16B5B}-\u{16B61}\u{16B63}-\u{16B77}\u{16B7D}-\u{16B8F}\u{16E40}-\u{16E9A}\u{16F00}-\u{16F4A}\u{16F4F}-\u{16F87}\u{16F8F}-\u{16F9F}\u{16FE0}-\u{16FE4}\u{16FF0}\u{16FF1}\u{17000}-\u{187F7}\u{18800}-\u{18CD5}\u{18D00}-\u{18D08}\u{1AFF0}-\u{1AFF3}\u{1AFF5}-\u{1AFFB}\u{1AFFD}\u{1AFFE}\u{1B000}-\u{1B122}\u{1B132}\u{1B150}-\u{1B152}\u{1B155}\u{1B164}-\u{1B167}\u{1B170}-\u{1B2FB}\u{1BC00}-\u{1BC6A}\u{1BC70}-\u{1BC7C}\u{1BC80}-\u{1BC88}\u{1BC90}-\u{1BC99}\u{1BC9C}-\u{1BCA3}\u{1CF00}-\u{1CF2D}\u{1CF30}-\u{1CF46}\u{1CF50}-\u{1CFC3}\u{1D000}-\u{1D0F5}\u{1D100}-\u{1D126}\u{1D129}-\u{1D1EA}\u{1D200}-\u{1D245}\u{1D2C0}-\u{1D2D3}\u{1D2E0}-\u{1D2F3}\u{1D300}-\u{1D356}\u{1D360}-\u{1D378}\u{1D400}-\u{1D454}\u{1D456}-\u{1D49C}\u{1D49E}\u{1D49F}\u{1D4A2}\u{1D4A5}\u{1D4A6}\u{1D4A9}-\u{1D4AC}\u{1D4AE}-\u{1D4B9}\u{1D4BB}\u{1D4BD}-\u{1D4C3}\u{1D4C5}-\u{1D505}\u{1D507}-\u{1D50A}\u{1D50D}-\u{1D514}\u{1D516}-\u{1D51C}\u{1D51E}-\u{1D539}\u{1D53B}-\u{1D53E}\u{1D540}-\u{1D544}\u{1D546}\u{1D54A}-\u{1D550}\u{1D552}-\u{1D6A5}\u{1D6A8}-\u{1D7CB}\u{1D7CE}-\u{1DA8B}\u{1DA9B}-\u{1DA9F}\u{1DAA1}-\u{1DAAF}\u{1DF00}-\u{1DF1E}\u{1DF25}-\u{1DF2A}\u{1E000}-\u{1E006}\u{1E008}-\u{1E018}\u{1E01B}-\u{1E021}\u{1E023}\u{1E024}\u{1E026}-\u{1E02A}\u{1E030}-\u{1E06D}\u{1E08F}\u{1E100}-\u{1E12C}\u{1E130}-\u{1E13D}\u{1E140}-\u{1E149}\u{1E14E}\u{1E14F}\u{1E290}-\u{1E2AE}\u{1E2C0}-\u{1E2F9}\u{1E2FF}\u{1E4D0}-\u{1E4F9}\u{1E7E0}-\u{1E7E6}\u{1E7E8}-\u{1E7EB}\u{1E7ED}\u{1E7EE}\u{1E7F0}-\u{1E7FE}\u{1E8D0}-\u{1E8D6}\u{1E944}-\u{1E94A}\u{1EEF0}\u{1EEF1}\u{1F000}-\u{1F02B}\u{1F030}-\u{1F093}\u{1F0A0}-\u{1F0AE}\u{1F0B1}-\u{1F0BF}\u{1F0C1}-\u{1F0CF}\u{1F0D1}-\u{1F0F5}\u{1F100}-\u{1F1AD}\u{1F1E6}-\u{1F202}\u{1F210}-\u{1F23B}\u{1F240}-\u{1F248}\u{1F250}\u{1F251}\u{1F260}-\u{1F265}\u{1F300}-\u{1F6D7}\u{1F6DC}-\u{1F6EC}\u{1F6F0}-\u{1F6FC}\u{1F700}-\u{1F776}\u{1F77B}-\u{1F7D9}\u{1F7E0}-\u{1F7EB}\u{1F7F0}\u{1F800}-\u{1F80B}\u{1F810}-\u{1F847}\u{1F850}-\u{1F859}\u{1F860}-\u{1F887}\u{1F890}-\u{1F8AD}\u{1F8B0}\u{1F8B1}\u{1F900}-\u{1FA53}\u{1FA60}-\u{1FA6D}\u{1FA70}-\u{1FA7C}\u{1FA80}-\u{1FA88}\u{1FA90}-\u{1FABD}\u{1FABF}-\u{1FAC5}\u{1FACE}-\u{1FADB}\u{1FAE0}-\u{1FAE8}\u{1FAF0}-\u{1FAF8}\u{1FB00}-\u{1FB92}\u{1FB94}-\u{1FBCA}\u{1FBF0}-\u{1FBF9}\u{20000}-\u{2A6DF}\u{2A700}-\u{2B739}\u{2B740}-\u{2B81D}\u{2B820}-\u{2CEA1}\u{2CEB0}-\u{2EBE0}\u{2EBF0}-\u{2EE5D}\u{2F800}-\u{2FA1D}\u{30000}-\u{3134A}\u{31350}-\u{323AF}\u{E0001}\u{E0020}-\u{E007F}\u{E0100}-\u{E01EF}\u{F0000}-\u{FFFFD}\u{100000}-\u{10FFFD}]*$/u;
+const bidiS6 = 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+
+module.exports = {
+    combiningMarks,
+  combiningClassVirama,
+  validZWNJ,
+  bidiDomain,
+  bidiS1LTR,
+  bidiS1RTL,
+  bidiS2,
+  bidiS3,
+  bidiS4EN,
+  bidiS4AN,
+  bidiS5,
+  bidiS6
+  };
diff --git a/backend/node_modules/tr46/lib/statusMapping.js b/backend/node_modules/tr46/lib/statusMapping.js
new file mode 100644
index 0000000..cfed6d6
--- /dev/null
+++ b/backend/node_modules/tr46/lib/statusMapping.js
@@ -0,0 +1,11 @@
+"use strict";
+
+module.exports.STATUS_MAPPING = {
+  mapped: 1,
+  valid: 2,
+  disallowed: 3,
+  disallowed_STD3_valid: 4,
+  disallowed_STD3_mapped: 5,
+  deviation: 6,
+  ignored: 7
+};
diff --git a/backend/node_modules/tr46/package.json b/backend/node_modules/tr46/package.json
new file mode 100644
index 0000000..ed0a89a
--- /dev/null
+++ b/backend/node_modules/tr46/package.json
@@ -0,0 +1,43 @@
+{
+  "name": "tr46",
+  "version": "5.0.0",
+  "engines": {
+    "node": ">=18"
+  },
+  "description": "An implementation of the Unicode UTS #46: Unicode IDNA Compatibility Processing",
+  "main": "index.js",
+  "files": [
+    "index.js",
+    "lib/"
+  ],
+  "scripts": {
+    "test": "node --test",
+    "lint": "eslint .",
+    "pretest": "node scripts/getLatestTests.js",
+    "prepublish": "node scripts/generateMappingTable.js && node scripts/generateRegexes.js"
+  },
+  "repository": "https://github.com/jsdom/tr46",
+  "keywords": [
+    "unicode",
+    "tr46",
+    "uts46",
+    "punycode",
+    "url",
+    "whatwg"
+  ],
+  "author": "Sebastian Mayr <npm@smayr.name>",
+  "contributors": [
+    "Timothy Gu <timothygu99@gmail.com>"
+  ],
+  "license": "MIT",
+  "dependencies": {
+    "punycode": "^2.3.1"
+  },
+  "devDependencies": {
+    "@domenic/eslint-config": "^3.0.0",
+    "@unicode/unicode-15.1.0": "^1.5.2",
+    "eslint": "^8.53.0",
+    "regenerate": "^1.4.2"
+  },
+  "unicodeVersion": "15.1.0"
+}
diff --git a/backend/node_modules/type-is/HISTORY.md b/backend/node_modules/type-is/HISTORY.md
new file mode 100644
index 0000000..8de21f7
--- /dev/null
+++ b/backend/node_modules/type-is/HISTORY.md
@@ -0,0 +1,259 @@
+1.6.18 / 2019-04-26
+===================
+
+  * Fix regression passing request object to `typeis.is`
+
+1.6.17 / 2019-04-25
+===================
+
+  * deps: mime-types@~2.1.24
+    - Add Apple file extensions from IANA
+    - Add extension `.csl` to `application/vnd.citationstyles.style+xml`
+    - Add extension `.es` to `application/ecmascript`
+    - Add extension `.nq` to `application/n-quads`
+    - Add extension `.nt` to `application/n-triples`
+    - Add extension `.owl` to `application/rdf+xml`
+    - Add extensions `.siv` and `.sieve` to `application/sieve`
+    - Add extensions from IANA for `image/*` types
+    - Add extensions from IANA for `model/*` types
+    - Add extensions to HEIC image types
+    - Add new mime types
+    - Add `text/mdx` with extension `.mdx`
+  * perf: prevent internal `throw` on invalid type
+
+1.6.16 / 2018-02-16
+===================
+
+  * deps: mime-types@~2.1.18
+    - Add `application/raml+yaml` with extension `.raml`
+    - Add `application/wasm` with extension `.wasm`
+    - Add `text/shex` with extension `.shex`
+    - Add extensions for JPEG-2000 images
+    - Add extensions from IANA for `message/*` types
+    - Add extension `.mjs` to `application/javascript`
+    - Add extension `.wadl` to `application/vnd.sun.wadl+xml`
+    - Add extension `.gz` to `application/gzip`
+    - Add glTF types and extensions
+    - Add new mime types
+    - Update extensions `.md` and `.markdown` to be `text/markdown`
+    - Update font MIME types
+    - Update `text/hjson` to registered `application/hjson`
+
+1.6.15 / 2017-03-31
+===================
+
+  * deps: mime-types@~2.1.15
+    - Add new mime types
+
+1.6.14 / 2016-11-18
+===================
+
+  * deps: mime-types@~2.1.13
+    - Add new mime types
+
+1.6.13 / 2016-05-18
+===================
+
+  * deps: mime-types@~2.1.11
+    - Add new mime types
+
+1.6.12 / 2016-02-28
+===================
+
+  * deps: mime-types@~2.1.10
+    - Add new mime types
+    - Fix extension of `application/dash+xml`
+    - Update primary extension for `audio/mp4`
+
+1.6.11 / 2016-01-29
+===================
+
+  * deps: mime-types@~2.1.9
+    - Add new mime types
+
+1.6.10 / 2015-12-01
+===================
+
+  * deps: mime-types@~2.1.8
+    - Add new mime types
+
+1.6.9 / 2015-09-27
+==================
+
+  * deps: mime-types@~2.1.7
+    - Add new mime types
+
+1.6.8 / 2015-09-04
+==================
+
+  * deps: mime-types@~2.1.6
+    - Add new mime types
+
+1.6.7 / 2015-08-20
+==================
+
+  * Fix type error when given invalid type to match against
+  * deps: mime-types@~2.1.5
+    - Add new mime types
+
+1.6.6 / 2015-07-31
+==================
+
+  * deps: mime-types@~2.1.4
+    - Add new mime types
+
+1.6.5 / 2015-07-16
+==================
+
+  * deps: mime-types@~2.1.3
+    - Add new mime types
+
+1.6.4 / 2015-07-01
+==================
+
+  * deps: mime-types@~2.1.2
+    - Add new mime types
+  * perf: enable strict mode
+  * perf: remove argument reassignment
+
+1.6.3 / 2015-06-08
+==================
+
+  * deps: mime-types@~2.1.1
+    - Add new mime types
+  * perf: reduce try block size
+  * perf: remove bitwise operations
+
+1.6.2 / 2015-05-10
+==================
+
+  * deps: mime-types@~2.0.11
+    - Add new mime types
+
+1.6.1 / 2015-03-13
+==================
+
+  * deps: mime-types@~2.0.10
+    - Add new mime types
+
+1.6.0 / 2015-02-12
+==================
+
+  * fix false-positives in `hasBody` `Transfer-Encoding` check
+  * support wildcard for both type and subtype (`*/*`)
+
+1.5.7 / 2015-02-09
+==================
+
+  * fix argument reassignment
+  * deps: mime-types@~2.0.9
+    - Add new mime types
+
+1.5.6 / 2015-01-29
+==================
+
+  * deps: mime-types@~2.0.8
+    - Add new mime types
+
+1.5.5 / 2014-12-30
+==================
+
+  * deps: mime-types@~2.0.7
+    - Add new mime types
+    - Fix missing extensions
+    - Fix various invalid MIME type entries
+    - Remove example template MIME types
+    - deps: mime-db@~1.5.0
+
+1.5.4 / 2014-12-10
+==================
+
+  * deps: mime-types@~2.0.4
+    - Add new mime types
+    - deps: mime-db@~1.3.0
+
+1.5.3 / 2014-11-09
+==================
+
+  * deps: mime-types@~2.0.3
+    - Add new mime types
+    - deps: mime-db@~1.2.0
+
+1.5.2 / 2014-09-28
+==================
+
+  * deps: mime-types@~2.0.2
+    - Add new mime types
+    - deps: mime-db@~1.1.0
+
+1.5.1 / 2014-09-07
+==================
+
+  * Support Node.js 0.6
+  * deps: media-typer@0.3.0
+  * deps: mime-types@~2.0.1
+    - Support Node.js 0.6
+
+1.5.0 / 2014-09-05
+==================
+
+ * fix `hasbody` to be true for `content-length: 0`
+
+1.4.0 / 2014-09-02
+==================
+
+ * update mime-types
+
+1.3.2 / 2014-06-24
+==================
+
+ * use `~` range on mime-types
+
+1.3.1 / 2014-06-19
+==================
+
+ * fix global variable leak
+
+1.3.0 / 2014-06-19
+==================
+
+ * improve type parsing
+
+   - invalid media type never matches
+   - media type not case-sensitive
+   - extra LWS does not affect results
+
+1.2.2 / 2014-06-19
+==================
+
+ * fix behavior on unknown type argument
+
+1.2.1 / 2014-06-03
+==================
+
+ * switch dependency from `mime` to `mime-types@1.0.0`
+
+1.2.0 / 2014-05-11
+==================
+
+ * support suffix matching:
+
+   - `+json` matches `application/vnd+json`
+   - `*/vnd+json` matches `application/vnd+json`
+   - `application/*+json` matches `application/vnd+json`
+
+1.1.0 / 2014-04-12
+==================
+
+ * add non-array values support
+ * expose internal utilities:
+
+   - `.is()`
+   - `.hasBody()`
+   - `.normalize()`
+   - `.match()`
+
+1.0.1 / 2014-03-30
+==================
+
+ * add `multipart` as a shorthand
diff --git a/backend/node_modules/type-is/LICENSE b/backend/node_modules/type-is/LICENSE
new file mode 100644
index 0000000..386b7b6
--- /dev/null
+++ b/backend/node_modules/type-is/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2014 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2014-2015 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/type-is/README.md b/backend/node_modules/type-is/README.md
new file mode 100644
index 0000000..b85ef8f
--- /dev/null
+++ b/backend/node_modules/type-is/README.md
@@ -0,0 +1,170 @@
+# type-is
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Infer the content-type of a request.
+
+### Install
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install type-is
+```
+
+## API
+
+```js
+var http = require('http')
+var typeis = require('type-is')
+
+http.createServer(function (req, res) {
+  var istext = typeis(req, ['text/*'])
+  res.end('you ' + (istext ? 'sent' : 'did not send') + ' me text')
+})
+```
+
+### typeis(request, types)
+
+Checks if the `request` is one of the `types`. If the request has no body,
+even if there is a `Content-Type` header, then `null` is returned. If the
+`Content-Type` header is invalid or does not matches any of the `types`, then
+`false` is returned. Otherwise, a string of the type that matched is returned.
+
+The `request` argument is expected to be a Node.js HTTP request. The `types`
+argument is an array of type strings.
+
+Each type in the `types` array can be one of the following:
+
+- A file extension name such as `json`. This name will be returned if matched.
+- A mime type such as `application/json`.
+- A mime type with a wildcard such as `*/*` or `*/json` or `application/*`.
+  The full mime type will be returned if matched.
+- A suffix such as `+json`. This can be combined with a wildcard such as
+  `*/vnd+json` or `application/*+json`. The full mime type will be returned
+  if matched.
+
+Some examples to illustrate the inputs and returned value:
+
+<!-- eslint-disable no-undef -->
+
+```js
+// req.headers.content-type = 'application/json'
+
+typeis(req, ['json']) // => 'json'
+typeis(req, ['html', 'json']) // => 'json'
+typeis(req, ['application/*']) // => 'application/json'
+typeis(req, ['application/json']) // => 'application/json'
+
+typeis(req, ['html']) // => false
+```
+
+### typeis.hasBody(request)
+
+Returns a Boolean if the given `request` has a body, regardless of the
+`Content-Type` header.
+
+Having a body has no relation to how large the body is (it may be 0 bytes).
+This is similar to how file existence works. If a body does exist, then this
+indicates that there is data to read from the Node.js request stream.
+
+<!-- eslint-disable no-undef -->
+
+```js
+if (typeis.hasBody(req)) {
+  // read the body, since there is one
+
+  req.on('data', function (chunk) {
+    // ...
+  })
+}
+```
+
+### typeis.is(mediaType, types)
+
+Checks if the `mediaType` is one of the `types`. If the `mediaType` is invalid
+or does not matches any of the `types`, then `false` is returned. Otherwise, a
+string of the type that matched is returned.
+
+The `mediaType` argument is expected to be a
+[media type](https://tools.ietf.org/html/rfc6838) string. The `types` argument
+is an array of type strings.
+
+Each type in the `types` array can be one of the following:
+
+- A file extension name such as `json`. This name will be returned if matched.
+- A mime type such as `application/json`.
+- A mime type with a wildcard such as `*/*` or `*/json` or `application/*`.
+  The full mime type will be returned if matched.
+- A suffix such as `+json`. This can be combined with a wildcard such as
+  `*/vnd+json` or `application/*+json`. The full mime type will be returned
+  if matched.
+
+Some examples to illustrate the inputs and returned value:
+
+<!-- eslint-disable no-undef -->
+
+```js
+var mediaType = 'application/json'
+
+typeis.is(mediaType, ['json']) // => 'json'
+typeis.is(mediaType, ['html', 'json']) // => 'json'
+typeis.is(mediaType, ['application/*']) // => 'application/json'
+typeis.is(mediaType, ['application/json']) // => 'application/json'
+
+typeis.is(mediaType, ['html']) // => false
+```
+
+## Examples
+
+### Example body parser
+
+```js
+var express = require('express')
+var typeis = require('type-is')
+
+var app = express()
+
+app.use(function bodyParser (req, res, next) {
+  if (!typeis.hasBody(req)) {
+    return next()
+  }
+
+  switch (typeis(req, ['urlencoded', 'json', 'multipart'])) {
+    case 'urlencoded':
+      // parse urlencoded body
+      throw new Error('implement urlencoded body parsing')
+    case 'json':
+      // parse json body
+      throw new Error('implement json body parsing')
+    case 'multipart':
+      // parse multipart body
+      throw new Error('implement multipart body parsing')
+    default:
+      // 415 error code
+      res.statusCode = 415
+      res.end()
+      break
+  }
+})
+```
+
+## License
+
+[MIT](LICENSE)
+
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/type-is/master
+[coveralls-url]: https://coveralls.io/r/jshttp/type-is?branch=master
+[node-version-image]: https://badgen.net/npm/node/type-is
+[node-version-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/type-is
+[npm-url]: https://npmjs.org/package/type-is
+[npm-version-image]: https://badgen.net/npm/v/type-is
+[travis-image]: https://badgen.net/travis/jshttp/type-is/master
+[travis-url]: https://travis-ci.org/jshttp/type-is
diff --git a/backend/node_modules/type-is/index.js b/backend/node_modules/type-is/index.js
new file mode 100644
index 0000000..890ad76
--- /dev/null
+++ b/backend/node_modules/type-is/index.js
@@ -0,0 +1,266 @@
+/*!
+ * type-is
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var typer = require('media-typer')
+var mime = require('mime-types')
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = typeofrequest
+module.exports.is = typeis
+module.exports.hasBody = hasbody
+module.exports.normalize = normalize
+module.exports.match = mimeMatch
+
+/**
+ * Compare a `value` content-type with `types`.
+ * Each `type` can be an extension like `html`,
+ * a special shortcut like `multipart` or `urlencoded`,
+ * or a mime type.
+ *
+ * If no types match, `false` is returned.
+ * Otherwise, the first `type` that matches is returned.
+ *
+ * @param {String} value
+ * @param {Array} types
+ * @public
+ */
+
+function typeis (value, types_) {
+  var i
+  var types = types_
+
+  // remove parameters and normalize
+  var val = tryNormalizeType(value)
+
+  // no type or invalid
+  if (!val) {
+    return false
+  }
+
+  // support flattened arguments
+  if (types && !Array.isArray(types)) {
+    types = new Array(arguments.length - 1)
+    for (i = 0; i < types.length; i++) {
+      types[i] = arguments[i + 1]
+    }
+  }
+
+  // no types, return the content type
+  if (!types || !types.length) {
+    return val
+  }
+
+  var type
+  for (i = 0; i < types.length; i++) {
+    if (mimeMatch(normalize(type = types[i]), val)) {
+      return type[0] === '+' || type.indexOf('*') !== -1
+        ? val
+        : type
+    }
+  }
+
+  // no matches
+  return false
+}
+
+/**
+ * Check if a request has a request body.
+ * A request with a body __must__ either have `transfer-encoding`
+ * or `content-length` headers set.
+ * http://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.3
+ *
+ * @param {Object} request
+ * @return {Boolean}
+ * @public
+ */
+
+function hasbody (req) {
+  return req.headers['transfer-encoding'] !== undefined ||
+    !isNaN(req.headers['content-length'])
+}
+
+/**
+ * Check if the incoming request contains the "Content-Type"
+ * header field, and it contains any of the give mime `type`s.
+ * If there is no request body, `null` is returned.
+ * If there is no content type, `false` is returned.
+ * Otherwise, it returns the first `type` that matches.
+ *
+ * Examples:
+ *
+ *     // With Content-Type: text/html; charset=utf-8
+ *     this.is('html'); // => 'html'
+ *     this.is('text/html'); // => 'text/html'
+ *     this.is('text/*', 'application/json'); // => 'text/html'
+ *
+ *     // When Content-Type is application/json
+ *     this.is('json', 'urlencoded'); // => 'json'
+ *     this.is('application/json'); // => 'application/json'
+ *     this.is('html', 'application/*'); // => 'application/json'
+ *
+ *     this.is('html'); // => false
+ *
+ * @param {String|Array} types...
+ * @return {String|false|null}
+ * @public
+ */
+
+function typeofrequest (req, types_) {
+  var types = types_
+
+  // no body
+  if (!hasbody(req)) {
+    return null
+  }
+
+  // support flattened arguments
+  if (arguments.length > 2) {
+    types = new Array(arguments.length - 1)
+    for (var i = 0; i < types.length; i++) {
+      types[i] = arguments[i + 1]
+    }
+  }
+
+  // request content type
+  var value = req.headers['content-type']
+
+  return typeis(value, types)
+}
+
+/**
+ * Normalize a mime type.
+ * If it's a shorthand, expand it to a valid mime type.
+ *
+ * In general, you probably want:
+ *
+ *   var type = is(req, ['urlencoded', 'json', 'multipart']);
+ *
+ * Then use the appropriate body parsers.
+ * These three are the most common request body types
+ * and are thus ensured to work.
+ *
+ * @param {String} type
+ * @private
+ */
+
+function normalize (type) {
+  if (typeof type !== 'string') {
+    // invalid type
+    return false
+  }
+
+  switch (type) {
+    case 'urlencoded':
+      return 'application/x-www-form-urlencoded'
+    case 'multipart':
+      return 'multipart/*'
+  }
+
+  if (type[0] === '+') {
+    // "+json" -> "*/*+json" expando
+    return '*/*' + type
+  }
+
+  return type.indexOf('/') === -1
+    ? mime.lookup(type)
+    : type
+}
+
+/**
+ * Check if `expected` mime type
+ * matches `actual` mime type with
+ * wildcard and +suffix support.
+ *
+ * @param {String} expected
+ * @param {String} actual
+ * @return {Boolean}
+ * @private
+ */
+
+function mimeMatch (expected, actual) {
+  // invalid type
+  if (expected === false) {
+    return false
+  }
+
+  // split types
+  var actualParts = actual.split('/')
+  var expectedParts = expected.split('/')
+
+  // invalid format
+  if (actualParts.length !== 2 || expectedParts.length !== 2) {
+    return false
+  }
+
+  // validate type
+  if (expectedParts[0] !== '*' && expectedParts[0] !== actualParts[0]) {
+    return false
+  }
+
+  // validate suffix wildcard
+  if (expectedParts[1].substr(0, 2) === '*+') {
+    return expectedParts[1].length <= actualParts[1].length + 1 &&
+      expectedParts[1].substr(1) === actualParts[1].substr(1 - expectedParts[1].length)
+  }
+
+  // validate subtype
+  if (expectedParts[1] !== '*' && expectedParts[1] !== actualParts[1]) {
+    return false
+  }
+
+  return true
+}
+
+/**
+ * Normalize a type and remove parameters.
+ *
+ * @param {string} value
+ * @return {string}
+ * @private
+ */
+
+function normalizeType (value) {
+  // parse the type
+  var type = typer.parse(value)
+
+  // remove the parameters
+  type.parameters = undefined
+
+  // reformat it
+  return typer.format(type)
+}
+
+/**
+ * Try to normalize a type and remove parameters.
+ *
+ * @param {string} value
+ * @return {string}
+ * @private
+ */
+
+function tryNormalizeType (value) {
+  if (!value) {
+    return null
+  }
+
+  try {
+    return normalizeType(value)
+  } catch (err) {
+    return null
+  }
+}
diff --git a/backend/node_modules/type-is/package.json b/backend/node_modules/type-is/package.json
new file mode 100644
index 0000000..97ba5f1
--- /dev/null
+++ b/backend/node_modules/type-is/package.json
@@ -0,0 +1,45 @@
+{
+  "name": "type-is",
+  "description": "Infer the content-type of a request.",
+  "version": "1.6.18",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)"
+  ],
+  "license": "MIT",
+  "repository": "jshttp/type-is",
+  "dependencies": {
+    "media-typer": "0.3.0",
+    "mime-types": "~2.1.24"
+  },
+  "devDependencies": {
+    "eslint": "5.16.0",
+    "eslint-config-standard": "12.0.0",
+    "eslint-plugin-import": "2.17.2",
+    "eslint-plugin-markdown": "1.0.0",
+    "eslint-plugin-node": "8.0.1",
+    "eslint-plugin-promise": "4.1.1",
+    "eslint-plugin-standard": "4.0.0",
+    "mocha": "6.1.4",
+    "nyc": "14.0.0"
+  },
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "index.js"
+  ],
+  "scripts": {
+    "lint": "eslint --plugin markdown --ext js,md .",
+    "test": "mocha --reporter spec --check-leaks --bail test/",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "test-travis": "nyc --reporter=text npm test"
+  },
+  "keywords": [
+    "content",
+    "type",
+    "checking"
+  ]
+}
diff --git a/backend/node_modules/typedarray/.travis.yml b/backend/node_modules/typedarray/.travis.yml
new file mode 100644
index 0000000..cc4dba2
--- /dev/null
+++ b/backend/node_modules/typedarray/.travis.yml
@@ -0,0 +1,4 @@
+language: node_js
+node_js:
+  - "0.8"
+  - "0.10"
diff --git a/backend/node_modules/typedarray/LICENSE b/backend/node_modules/typedarray/LICENSE
new file mode 100644
index 0000000..11adfae
--- /dev/null
+++ b/backend/node_modules/typedarray/LICENSE
@@ -0,0 +1,35 @@
+/*
+ Copyright (c) 2010, Linden Research, Inc.
+ Copyright (c) 2012, Joshua Bell
+
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ THE SOFTWARE.
+ $/LicenseInfo$
+ */
+
+// Original can be found at:
+//   https://bitbucket.org/lindenlab/llsd
+// Modifications by Joshua Bell inexorabletash@gmail.com
+//   https://github.com/inexorabletash/polyfill
+
+// ES3/ES5 implementation of the Krhonos Typed Array Specification
+//   Ref: http://www.khronos.org/registry/typedarray/specs/latest/
+//   Date: 2011-02-01
+//
+// Variations:
+//  * Allows typed_array.get/set() as alias for subscripts (typed_array[])
diff --git a/backend/node_modules/typedarray/example/tarray.js b/backend/node_modules/typedarray/example/tarray.js
new file mode 100644
index 0000000..8423d7c
--- /dev/null
+++ b/backend/node_modules/typedarray/example/tarray.js
@@ -0,0 +1,4 @@
+var Uint8Array = require('../').Uint8Array;
+var ua = new Uint8Array(5);
+ua[1] = 256 + 55;
+console.log(ua[1]);
diff --git a/backend/node_modules/typedarray/index.js b/backend/node_modules/typedarray/index.js
new file mode 100644
index 0000000..5e54084
--- /dev/null
+++ b/backend/node_modules/typedarray/index.js
@@ -0,0 +1,630 @@
+var undefined = (void 0); // Paranoia
+
+// Beyond this value, index getters/setters (i.e. array[0], array[1]) are so slow to
+// create, and consume so much memory, that the browser appears frozen.
+var MAX_ARRAY_LENGTH = 1e5;
+
+// Approximations of internal ECMAScript conversion functions
+var ECMAScript = (function() {
+  // Stash a copy in case other scripts modify these
+  var opts = Object.prototype.toString,
+      ophop = Object.prototype.hasOwnProperty;
+
+  return {
+    // Class returns internal [[Class]] property, used to avoid cross-frame instanceof issues:
+    Class: function(v) { return opts.call(v).replace(/^\[object *|\]$/g, ''); },
+    HasProperty: function(o, p) { return p in o; },
+    HasOwnProperty: function(o, p) { return ophop.call(o, p); },
+    IsCallable: function(o) { return typeof o === 'function'; },
+    ToInt32: function(v) { return v >> 0; },
+    ToUint32: function(v) { return v >>> 0; }
+  };
+}());
+
+// Snapshot intrinsics
+var LN2 = Math.LN2,
+    abs = Math.abs,
+    floor = Math.floor,
+    log = Math.log,
+    min = Math.min,
+    pow = Math.pow,
+    round = Math.round;
+
+// ES5: lock down object properties
+function configureProperties(obj) {
+  if (getOwnPropNames && defineProp) {
+    var props = getOwnPropNames(obj), i;
+    for (i = 0; i < props.length; i += 1) {
+      defineProp(obj, props[i], {
+        value: obj[props[i]],
+        writable: false,
+        enumerable: false,
+        configurable: false
+      });
+    }
+  }
+}
+
+// emulate ES5 getter/setter API using legacy APIs
+// http://blogs.msdn.com/b/ie/archive/2010/09/07/transitioning-existing-code-to-the-es5-getter-setter-apis.aspx
+// (second clause tests for Object.defineProperty() in IE<9 that only supports extending DOM prototypes, but
+// note that IE<9 does not support __defineGetter__ or __defineSetter__ so it just renders the method harmless)
+var defineProp
+if (Object.defineProperty && (function() {
+      try {
+        Object.defineProperty({}, 'x', {});
+        return true;
+      } catch (e) {
+        return false;
+      }
+    })()) {
+  defineProp = Object.defineProperty;
+} else {
+  defineProp = function(o, p, desc) {
+    if (!o === Object(o)) throw new TypeError("Object.defineProperty called on non-object");
+    if (ECMAScript.HasProperty(desc, 'get') && Object.prototype.__defineGetter__) { Object.prototype.__defineGetter__.call(o, p, desc.get); }
+    if (ECMAScript.HasProperty(desc, 'set') && Object.prototype.__defineSetter__) { Object.prototype.__defineSetter__.call(o, p, desc.set); }
+    if (ECMAScript.HasProperty(desc, 'value')) { o[p] = desc.value; }
+    return o;
+  };
+}
+
+var getOwnPropNames = Object.getOwnPropertyNames || function (o) {
+  if (o !== Object(o)) throw new TypeError("Object.getOwnPropertyNames called on non-object");
+  var props = [], p;
+  for (p in o) {
+    if (ECMAScript.HasOwnProperty(o, p)) {
+      props.push(p);
+    }
+  }
+  return props;
+};
+
+// ES5: Make obj[index] an alias for obj._getter(index)/obj._setter(index, value)
+// for index in 0 ... obj.length
+function makeArrayAccessors(obj) {
+  if (!defineProp) { return; }
+
+  if (obj.length > MAX_ARRAY_LENGTH) throw new RangeError("Array too large for polyfill");
+
+  function makeArrayAccessor(index) {
+    defineProp(obj, index, {
+      'get': function() { return obj._getter(index); },
+      'set': function(v) { obj._setter(index, v); },
+      enumerable: true,
+      configurable: false
+    });
+  }
+
+  var i;
+  for (i = 0; i < obj.length; i += 1) {
+    makeArrayAccessor(i);
+  }
+}
+
+// Internal conversion functions:
+//    pack<Type>()   - take a number (interpreted as Type), output a byte array
+//    unpack<Type>() - take a byte array, output a Type-like number
+
+function as_signed(value, bits) { var s = 32 - bits; return (value << s) >> s; }
+function as_unsigned(value, bits) { var s = 32 - bits; return (value << s) >>> s; }
+
+function packI8(n) { return [n & 0xff]; }
+function unpackI8(bytes) { return as_signed(bytes[0], 8); }
+
+function packU8(n) { return [n & 0xff]; }
+function unpackU8(bytes) { return as_unsigned(bytes[0], 8); }
+
+function packU8Clamped(n) { n = round(Number(n)); return [n < 0 ? 0 : n > 0xff ? 0xff : n & 0xff]; }
+
+function packI16(n) { return [(n >> 8) & 0xff, n & 0xff]; }
+function unpackI16(bytes) { return as_signed(bytes[0] << 8 | bytes[1], 16); }
+
+function packU16(n) { return [(n >> 8) & 0xff, n & 0xff]; }
+function unpackU16(bytes) { return as_unsigned(bytes[0] << 8 | bytes[1], 16); }
+
+function packI32(n) { return [(n >> 24) & 0xff, (n >> 16) & 0xff, (n >> 8) & 0xff, n & 0xff]; }
+function unpackI32(bytes) { return as_signed(bytes[0] << 24 | bytes[1] << 16 | bytes[2] << 8 | bytes[3], 32); }
+
+function packU32(n) { return [(n >> 24) & 0xff, (n >> 16) & 0xff, (n >> 8) & 0xff, n & 0xff]; }
+function unpackU32(bytes) { return as_unsigned(bytes[0] << 24 | bytes[1] << 16 | bytes[2] << 8 | bytes[3], 32); }
+
+function packIEEE754(v, ebits, fbits) {
+
+  var bias = (1 << (ebits - 1)) - 1,
+      s, e, f, ln,
+      i, bits, str, bytes;
+
+  function roundToEven(n) {
+    var w = floor(n), f = n - w;
+    if (f < 0.5)
+      return w;
+    if (f > 0.5)
+      return w + 1;
+    return w % 2 ? w + 1 : w;
+  }
+
+  // Compute sign, exponent, fraction
+  if (v !== v) {
+    // NaN
+    // http://dev.w3.org/2006/webapi/WebIDL/#es-type-mapping
+    e = (1 << ebits) - 1; f = pow(2, fbits - 1); s = 0;
+  } else if (v === Infinity || v === -Infinity) {
+    e = (1 << ebits) - 1; f = 0; s = (v < 0) ? 1 : 0;
+  } else if (v === 0) {
+    e = 0; f = 0; s = (1 / v === -Infinity) ? 1 : 0;
+  } else {
+    s = v < 0;
+    v = abs(v);
+
+    if (v >= pow(2, 1 - bias)) {
+      e = min(floor(log(v) / LN2), 1023);
+      f = roundToEven(v / pow(2, e) * pow(2, fbits));
+      if (f / pow(2, fbits) >= 2) {
+        e = e + 1;
+        f = 1;
+      }
+      if (e > bias) {
+        // Overflow
+        e = (1 << ebits) - 1;
+        f = 0;
+      } else {
+        // Normalized
+        e = e + bias;
+        f = f - pow(2, fbits);
+      }
+    } else {
+      // Denormalized
+      e = 0;
+      f = roundToEven(v / pow(2, 1 - bias - fbits));
+    }
+  }
+
+  // Pack sign, exponent, fraction
+  bits = [];
+  for (i = fbits; i; i -= 1) { bits.push(f % 2 ? 1 : 0); f = floor(f / 2); }
+  for (i = ebits; i; i -= 1) { bits.push(e % 2 ? 1 : 0); e = floor(e / 2); }
+  bits.push(s ? 1 : 0);
+  bits.reverse();
+  str = bits.join('');
+
+  // Bits to bytes
+  bytes = [];
+  while (str.length) {
+    bytes.push(parseInt(str.substring(0, 8), 2));
+    str = str.substring(8);
+  }
+  return bytes;
+}
+
+function unpackIEEE754(bytes, ebits, fbits) {
+
+  // Bytes to bits
+  var bits = [], i, j, b, str,
+      bias, s, e, f;
+
+  for (i = bytes.length; i; i -= 1) {
+    b = bytes[i - 1];
+    for (j = 8; j; j -= 1) {
+      bits.push(b % 2 ? 1 : 0); b = b >> 1;
+    }
+  }
+  bits.reverse();
+  str = bits.join('');
+
+  // Unpack sign, exponent, fraction
+  bias = (1 << (ebits - 1)) - 1;
+  s = parseInt(str.substring(0, 1), 2) ? -1 : 1;
+  e = parseInt(str.substring(1, 1 + ebits), 2);
+  f = parseInt(str.substring(1 + ebits), 2);
+
+  // Produce number
+  if (e === (1 << ebits) - 1) {
+    return f !== 0 ? NaN : s * Infinity;
+  } else if (e > 0) {
+    // Normalized
+    return s * pow(2, e - bias) * (1 + f / pow(2, fbits));
+  } else if (f !== 0) {
+    // Denormalized
+    return s * pow(2, -(bias - 1)) * (f / pow(2, fbits));
+  } else {
+    return s < 0 ? -0 : 0;
+  }
+}
+
+function unpackF64(b) { return unpackIEEE754(b, 11, 52); }
+function packF64(v) { return packIEEE754(v, 11, 52); }
+function unpackF32(b) { return unpackIEEE754(b, 8, 23); }
+function packF32(v) { return packIEEE754(v, 8, 23); }
+
+
+//
+// 3 The ArrayBuffer Type
+//
+
+(function() {
+
+  /** @constructor */
+  var ArrayBuffer = function ArrayBuffer(length) {
+    length = ECMAScript.ToInt32(length);
+    if (length < 0) throw new RangeError('ArrayBuffer size is not a small enough positive integer');
+
+    this.byteLength = length;
+    this._bytes = [];
+    this._bytes.length = length;
+
+    var i;
+    for (i = 0; i < this.byteLength; i += 1) {
+      this._bytes[i] = 0;
+    }
+
+    configureProperties(this);
+  };
+
+  exports.ArrayBuffer = exports.ArrayBuffer || ArrayBuffer;
+
+  //
+  // 4 The ArrayBufferView Type
+  //
+
+  // NOTE: this constructor is not exported
+  /** @constructor */
+  var ArrayBufferView = function ArrayBufferView() {
+    //this.buffer = null;
+    //this.byteOffset = 0;
+    //this.byteLength = 0;
+  };
+
+  //
+  // 5 The Typed Array View Types
+  //
+
+  function makeConstructor(bytesPerElement, pack, unpack) {
+    // Each TypedArray type requires a distinct constructor instance with
+    // identical logic, which this produces.
+
+    var ctor;
+    ctor = function(buffer, byteOffset, length) {
+      var array, sequence, i, s;
+
+      if (!arguments.length || typeof arguments[0] === 'number') {
+        // Constructor(unsigned long length)
+        this.length = ECMAScript.ToInt32(arguments[0]);
+        if (length < 0) throw new RangeError('ArrayBufferView size is not a small enough positive integer');
+
+        this.byteLength = this.length * this.BYTES_PER_ELEMENT;
+        this.buffer = new ArrayBuffer(this.byteLength);
+        this.byteOffset = 0;
+      } else if (typeof arguments[0] === 'object' && arguments[0].constructor === ctor) {
+        // Constructor(TypedArray array)
+        array = arguments[0];
+
+        this.length = array.length;
+        this.byteLength = this.length * this.BYTES_PER_ELEMENT;
+        this.buffer = new ArrayBuffer(this.byteLength);
+        this.byteOffset = 0;
+
+        for (i = 0; i < this.length; i += 1) {
+          this._setter(i, array._getter(i));
+        }
+      } else if (typeof arguments[0] === 'object' &&
+                 !(arguments[0] instanceof ArrayBuffer || ECMAScript.Class(arguments[0]) === 'ArrayBuffer')) {
+        // Constructor(sequence<type> array)
+        sequence = arguments[0];
+
+        this.length = ECMAScript.ToUint32(sequence.length);
+        this.byteLength = this.length * this.BYTES_PER_ELEMENT;
+        this.buffer = new ArrayBuffer(this.byteLength);
+        this.byteOffset = 0;
+
+        for (i = 0; i < this.length; i += 1) {
+          s = sequence[i];
+          this._setter(i, Number(s));
+        }
+      } else if (typeof arguments[0] === 'object' &&
+                 (arguments[0] instanceof ArrayBuffer || ECMAScript.Class(arguments[0]) === 'ArrayBuffer')) {
+        // Constructor(ArrayBuffer buffer,
+        //             optional unsigned long byteOffset, optional unsigned long length)
+        this.buffer = buffer;
+
+        this.byteOffset = ECMAScript.ToUint32(byteOffset);
+        if (this.byteOffset > this.buffer.byteLength) {
+          throw new RangeError("byteOffset out of range");
+        }
+
+        if (this.byteOffset % this.BYTES_PER_ELEMENT) {
+          // The given byteOffset must be a multiple of the element
+          // size of the specific type, otherwise an exception is raised.
+          throw new RangeError("ArrayBuffer length minus the byteOffset is not a multiple of the element size.");
+        }
+
+        if (arguments.length < 3) {
+          this.byteLength = this.buffer.byteLength - this.byteOffset;
+
+          if (this.byteLength % this.BYTES_PER_ELEMENT) {
+            throw new RangeError("length of buffer minus byteOffset not a multiple of the element size");
+          }
+          this.length = this.byteLength / this.BYTES_PER_ELEMENT;
+        } else {
+          this.length = ECMAScript.ToUint32(length);
+          this.byteLength = this.length * this.BYTES_PER_ELEMENT;
+        }
+
+        if ((this.byteOffset + this.byteLength) > this.buffer.byteLength) {
+          throw new RangeError("byteOffset and length reference an area beyond the end of the buffer");
+        }
+      } else {
+        throw new TypeError("Unexpected argument type(s)");
+      }
+
+      this.constructor = ctor;
+
+      configureProperties(this);
+      makeArrayAccessors(this);
+    };
+
+    ctor.prototype = new ArrayBufferView();
+    ctor.prototype.BYTES_PER_ELEMENT = bytesPerElement;
+    ctor.prototype._pack = pack;
+    ctor.prototype._unpack = unpack;
+    ctor.BYTES_PER_ELEMENT = bytesPerElement;
+
+    // getter type (unsigned long index);
+    ctor.prototype._getter = function(index) {
+      if (arguments.length < 1) throw new SyntaxError("Not enough arguments");
+
+      index = ECMAScript.ToUint32(index);
+      if (index >= this.length) {
+        return undefined;
+      }
+
+      var bytes = [], i, o;
+      for (i = 0, o = this.byteOffset + index * this.BYTES_PER_ELEMENT;
+           i < this.BYTES_PER_ELEMENT;
+           i += 1, o += 1) {
+        bytes.push(this.buffer._bytes[o]);
+      }
+      return this._unpack(bytes);
+    };
+
+    // NONSTANDARD: convenience alias for getter: type get(unsigned long index);
+    ctor.prototype.get = ctor.prototype._getter;
+
+    // setter void (unsigned long index, type value);
+    ctor.prototype._setter = function(index, value) {
+      if (arguments.length < 2) throw new SyntaxError("Not enough arguments");
+
+      index = ECMAScript.ToUint32(index);
+      if (index >= this.length) {
+        return undefined;
+      }
+
+      var bytes = this._pack(value), i, o;
+      for (i = 0, o = this.byteOffset + index * this.BYTES_PER_ELEMENT;
+           i < this.BYTES_PER_ELEMENT;
+           i += 1, o += 1) {
+        this.buffer._bytes[o] = bytes[i];
+      }
+    };
+
+    // void set(TypedArray array, optional unsigned long offset);
+    // void set(sequence<type> array, optional unsigned long offset);
+    ctor.prototype.set = function(index, value) {
+      if (arguments.length < 1) throw new SyntaxError("Not enough arguments");
+      var array, sequence, offset, len,
+          i, s, d,
+          byteOffset, byteLength, tmp;
+
+      if (typeof arguments[0] === 'object' && arguments[0].constructor === this.constructor) {
+        // void set(TypedArray array, optional unsigned long offset);
+        array = arguments[0];
+        offset = ECMAScript.ToUint32(arguments[1]);
+
+        if (offset + array.length > this.length) {
+          throw new RangeError("Offset plus length of array is out of range");
+        }
+
+        byteOffset = this.byteOffset + offset * this.BYTES_PER_ELEMENT;
+        byteLength = array.length * this.BYTES_PER_ELEMENT;
+
+        if (array.buffer === this.buffer) {
+          tmp = [];
+          for (i = 0, s = array.byteOffset; i < byteLength; i += 1, s += 1) {
+            tmp[i] = array.buffer._bytes[s];
+          }
+          for (i = 0, d = byteOffset; i < byteLength; i += 1, d += 1) {
+            this.buffer._bytes[d] = tmp[i];
+          }
+        } else {
+          for (i = 0, s = array.byteOffset, d = byteOffset;
+               i < byteLength; i += 1, s += 1, d += 1) {
+            this.buffer._bytes[d] = array.buffer._bytes[s];
+          }
+        }
+      } else if (typeof arguments[0] === 'object' && typeof arguments[0].length !== 'undefined') {
+        // void set(sequence<type> array, optional unsigned long offset);
+        sequence = arguments[0];
+        len = ECMAScript.ToUint32(sequence.length);
+        offset = ECMAScript.ToUint32(arguments[1]);
+
+        if (offset + len > this.length) {
+          throw new RangeError("Offset plus length of array is out of range");
+        }
+
+        for (i = 0; i < len; i += 1) {
+          s = sequence[i];
+          this._setter(offset + i, Number(s));
+        }
+      } else {
+        throw new TypeError("Unexpected argument type(s)");
+      }
+    };
+
+    // TypedArray subarray(long begin, optional long end);
+    ctor.prototype.subarray = function(start, end) {
+      function clamp(v, min, max) { return v < min ? min : v > max ? max : v; }
+
+      start = ECMAScript.ToInt32(start);
+      end = ECMAScript.ToInt32(end);
+
+      if (arguments.length < 1) { start = 0; }
+      if (arguments.length < 2) { end = this.length; }
+
+      if (start < 0) { start = this.length + start; }
+      if (end < 0) { end = this.length + end; }
+
+      start = clamp(start, 0, this.length);
+      end = clamp(end, 0, this.length);
+
+      var len = end - start;
+      if (len < 0) {
+        len = 0;
+      }
+
+      return new this.constructor(
+        this.buffer, this.byteOffset + start * this.BYTES_PER_ELEMENT, len);
+    };
+
+    return ctor;
+  }
+
+  var Int8Array = makeConstructor(1, packI8, unpackI8);
+  var Uint8Array = makeConstructor(1, packU8, unpackU8);
+  var Uint8ClampedArray = makeConstructor(1, packU8Clamped, unpackU8);
+  var Int16Array = makeConstructor(2, packI16, unpackI16);
+  var Uint16Array = makeConstructor(2, packU16, unpackU16);
+  var Int32Array = makeConstructor(4, packI32, unpackI32);
+  var Uint32Array = makeConstructor(4, packU32, unpackU32);
+  var Float32Array = makeConstructor(4, packF32, unpackF32);
+  var Float64Array = makeConstructor(8, packF64, unpackF64);
+
+  exports.Int8Array = exports.Int8Array || Int8Array;
+  exports.Uint8Array = exports.Uint8Array || Uint8Array;
+  exports.Uint8ClampedArray = exports.Uint8ClampedArray || Uint8ClampedArray;
+  exports.Int16Array = exports.Int16Array || Int16Array;
+  exports.Uint16Array = exports.Uint16Array || Uint16Array;
+  exports.Int32Array = exports.Int32Array || Int32Array;
+  exports.Uint32Array = exports.Uint32Array || Uint32Array;
+  exports.Float32Array = exports.Float32Array || Float32Array;
+  exports.Float64Array = exports.Float64Array || Float64Array;
+}());
+
+//
+// 6 The DataView View Type
+//
+
+(function() {
+  function r(array, index) {
+    return ECMAScript.IsCallable(array.get) ? array.get(index) : array[index];
+  }
+
+  var IS_BIG_ENDIAN = (function() {
+    var u16array = new(exports.Uint16Array)([0x1234]),
+        u8array = new(exports.Uint8Array)(u16array.buffer);
+    return r(u8array, 0) === 0x12;
+  }());
+
+  // Constructor(ArrayBuffer buffer,
+  //             optional unsigned long byteOffset,
+  //             optional unsigned long byteLength)
+  /** @constructor */
+  var DataView = function DataView(buffer, byteOffset, byteLength) {
+    if (arguments.length === 0) {
+      buffer = new exports.ArrayBuffer(0);
+    } else if (!(buffer instanceof exports.ArrayBuffer || ECMAScript.Class(buffer) === 'ArrayBuffer')) {
+      throw new TypeError("TypeError");
+    }
+
+    this.buffer = buffer || new exports.ArrayBuffer(0);
+
+    this.byteOffset = ECMAScript.ToUint32(byteOffset);
+    if (this.byteOffset > this.buffer.byteLength) {
+      throw new RangeError("byteOffset out of range");
+    }
+
+    if (arguments.length < 3) {
+      this.byteLength = this.buffer.byteLength - this.byteOffset;
+    } else {
+      this.byteLength = ECMAScript.ToUint32(byteLength);
+    }
+
+    if ((this.byteOffset + this.byteLength) > this.buffer.byteLength) {
+      throw new RangeError("byteOffset and length reference an area beyond the end of the buffer");
+    }
+
+    configureProperties(this);
+  };
+
+  function makeGetter(arrayType) {
+    return function(byteOffset, littleEndian) {
+
+      byteOffset = ECMAScript.ToUint32(byteOffset);
+
+      if (byteOffset + arrayType.BYTES_PER_ELEMENT > this.byteLength) {
+        throw new RangeError("Array index out of range");
+      }
+      byteOffset += this.byteOffset;
+
+      var uint8Array = new exports.Uint8Array(this.buffer, byteOffset, arrayType.BYTES_PER_ELEMENT),
+          bytes = [], i;
+      for (i = 0; i < arrayType.BYTES_PER_ELEMENT; i += 1) {
+        bytes.push(r(uint8Array, i));
+      }
+
+      if (Boolean(littleEndian) === Boolean(IS_BIG_ENDIAN)) {
+        bytes.reverse();
+      }
+
+      return r(new arrayType(new exports.Uint8Array(bytes).buffer), 0);
+    };
+  }
+
+  DataView.prototype.getUint8 = makeGetter(exports.Uint8Array);
+  DataView.prototype.getInt8 = makeGetter(exports.Int8Array);
+  DataView.prototype.getUint16 = makeGetter(exports.Uint16Array);
+  DataView.prototype.getInt16 = makeGetter(exports.Int16Array);
+  DataView.prototype.getUint32 = makeGetter(exports.Uint32Array);
+  DataView.prototype.getInt32 = makeGetter(exports.Int32Array);
+  DataView.prototype.getFloat32 = makeGetter(exports.Float32Array);
+  DataView.prototype.getFloat64 = makeGetter(exports.Float64Array);
+
+  function makeSetter(arrayType) {
+    return function(byteOffset, value, littleEndian) {
+
+      byteOffset = ECMAScript.ToUint32(byteOffset);
+      if (byteOffset + arrayType.BYTES_PER_ELEMENT > this.byteLength) {
+        throw new RangeError("Array index out of range");
+      }
+
+      // Get bytes
+      var typeArray = new arrayType([value]),
+          byteArray = new exports.Uint8Array(typeArray.buffer),
+          bytes = [], i, byteView;
+
+      for (i = 0; i < arrayType.BYTES_PER_ELEMENT; i += 1) {
+        bytes.push(r(byteArray, i));
+      }
+
+      // Flip if necessary
+      if (Boolean(littleEndian) === Boolean(IS_BIG_ENDIAN)) {
+        bytes.reverse();
+      }
+
+      // Write them
+      byteView = new exports.Uint8Array(this.buffer, byteOffset, arrayType.BYTES_PER_ELEMENT);
+      byteView.set(bytes);
+    };
+  }
+
+  DataView.prototype.setUint8 = makeSetter(exports.Uint8Array);
+  DataView.prototype.setInt8 = makeSetter(exports.Int8Array);
+  DataView.prototype.setUint16 = makeSetter(exports.Uint16Array);
+  DataView.prototype.setInt16 = makeSetter(exports.Int16Array);
+  DataView.prototype.setUint32 = makeSetter(exports.Uint32Array);
+  DataView.prototype.setInt32 = makeSetter(exports.Int32Array);
+  DataView.prototype.setFloat32 = makeSetter(exports.Float32Array);
+  DataView.prototype.setFloat64 = makeSetter(exports.Float64Array);
+
+  exports.DataView = exports.DataView || DataView;
+
+}());
diff --git a/backend/node_modules/typedarray/package.json b/backend/node_modules/typedarray/package.json
new file mode 100644
index 0000000..a7854a0
--- /dev/null
+++ b/backend/node_modules/typedarray/package.json
@@ -0,0 +1,55 @@
+{
+  "name": "typedarray",
+  "version": "0.0.6",
+  "description": "TypedArray polyfill for old browsers",
+  "main": "index.js",
+  "devDependencies": {
+    "tape": "~2.3.2"
+  },
+  "scripts": {
+    "test": "tape test/*.js test/server/*.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/substack/typedarray.git"
+  },
+  "homepage": "https://github.com/substack/typedarray",
+  "keywords": [
+    "ArrayBuffer",
+    "DataView",
+    "Float32Array",
+    "Float64Array",
+    "Int8Array",
+    "Int16Array",
+    "Int32Array",
+    "Uint8Array",
+    "Uint8ClampedArray",
+    "Uint16Array",
+    "Uint32Array",
+    "typed",
+    "array",
+    "polyfill"
+  ],
+  "author": {
+    "name": "James Halliday",
+    "email": "mail@substack.net",
+    "url": "http://substack.net"
+  },
+  "license": "MIT",
+  "testling": {
+    "files": "test/*.js",
+    "browsers": [
+      "ie/6..latest",
+      "firefox/16..latest",
+      "firefox/nightly",
+      "chrome/22..latest",
+      "chrome/canary",
+      "opera/12..latest",
+      "opera/next",
+      "safari/5.1..latest",
+      "ipad/6.0..latest",
+      "iphone/6.0..latest",
+      "android-browser/4.2..latest"
+    ]
+  }
+}
diff --git a/backend/node_modules/typedarray/readme.markdown b/backend/node_modules/typedarray/readme.markdown
new file mode 100644
index 0000000..d18f6f7
--- /dev/null
+++ b/backend/node_modules/typedarray/readme.markdown
@@ -0,0 +1,61 @@
+# typedarray
+
+TypedArray polyfill ripped from [this
+module](https://raw.github.com/inexorabletash/polyfill).
+
+[![build status](https://secure.travis-ci.org/substack/typedarray.png)](http://travis-ci.org/substack/typedarray)
+
+[![testling badge](https://ci.testling.com/substack/typedarray.png)](https://ci.testling.com/substack/typedarray)
+
+# example
+
+``` js
+var Uint8Array = require('typedarray').Uint8Array;
+var ua = new Uint8Array(5);
+ua[1] = 256 + 55;
+console.log(ua[1]);
+```
+
+output:
+
+```
+55
+```
+
+# methods
+
+``` js
+var TA = require('typedarray')
+```
+
+The `TA` object has the following constructors:
+
+* TA.ArrayBuffer
+* TA.DataView
+* TA.Float32Array
+* TA.Float64Array
+* TA.Int8Array
+* TA.Int16Array
+* TA.Int32Array
+* TA.Uint8Array
+* TA.Uint8ClampedArray
+* TA.Uint16Array
+* TA.Uint32Array
+
+# install
+
+With [npm](https://npmjs.org) do:
+
+```
+npm install typedarray
+```
+
+To use this module in the browser, compile with
+[browserify](http://browserify.org)
+or download a UMD build from browserify CDN:
+
+http://wzrd.in/standalone/typedarray@latest
+
+# license
+
+MIT
diff --git a/backend/node_modules/typedarray/test/server/undef_globals.js b/backend/node_modules/typedarray/test/server/undef_globals.js
new file mode 100644
index 0000000..425950f
--- /dev/null
+++ b/backend/node_modules/typedarray/test/server/undef_globals.js
@@ -0,0 +1,19 @@
+var test = require('tape');
+var vm = require('vm');
+var fs = require('fs');
+var src = fs.readFileSync(__dirname + '/../../index.js', 'utf8');
+
+test('u8a without globals', function (t) {
+    var c = {
+        module: { exports: {} },
+    };
+    c.exports = c.module.exports;
+    vm.runInNewContext(src, c);
+    var TA = c.module.exports;
+    var ua = new(TA.Uint8Array)(5);
+    
+    t.equal(ua.length, 5);
+    ua[1] = 256 + 55;
+    t.equal(ua[1], 55);
+    t.end();
+});
diff --git a/backend/node_modules/typedarray/test/tarray.js b/backend/node_modules/typedarray/test/tarray.js
new file mode 100644
index 0000000..df596a3
--- /dev/null
+++ b/backend/node_modules/typedarray/test/tarray.js
@@ -0,0 +1,10 @@
+var TA = require('../');
+var test = require('tape');
+
+test('tiny u8a test', function (t) {
+    var ua = new(TA.Uint8Array)(5);
+    t.equal(ua.length, 5);
+    ua[1] = 256 + 55;
+    t.equal(ua[1], 55);
+    t.end();
+});
diff --git a/backend/node_modules/unpipe/HISTORY.md b/backend/node_modules/unpipe/HISTORY.md
new file mode 100644
index 0000000..85e0f8d
--- /dev/null
+++ b/backend/node_modules/unpipe/HISTORY.md
@@ -0,0 +1,4 @@
+1.0.0 / 2015-06-14
+==================
+
+  * Initial release
diff --git a/backend/node_modules/unpipe/LICENSE b/backend/node_modules/unpipe/LICENSE
new file mode 100644
index 0000000..aed0138
--- /dev/null
+++ b/backend/node_modules/unpipe/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2015 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/unpipe/README.md b/backend/node_modules/unpipe/README.md
new file mode 100644
index 0000000..e536ad2
--- /dev/null
+++ b/backend/node_modules/unpipe/README.md
@@ -0,0 +1,43 @@
+# unpipe
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-image]][node-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Unpipe a stream from all destinations.
+
+## Installation
+
+```sh
+$ npm install unpipe
+```
+
+## API
+
+```js
+var unpipe = require('unpipe')
+```
+
+### unpipe(stream)
+
+Unpipes all destinations from a given stream. With stream 2+, this is
+equivalent to `stream.unpipe()`. When used with streams 1 style streams
+(typically Node.js 0.8 and below), this module attempts to undo the
+actions done in `stream.pipe(dest)`.
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/unpipe.svg
+[npm-url]: https://npmjs.org/package/unpipe
+[node-image]: https://img.shields.io/node/v/unpipe.svg
+[node-url]: http://nodejs.org/download/
+[travis-image]: https://img.shields.io/travis/stream-utils/unpipe.svg
+[travis-url]: https://travis-ci.org/stream-utils/unpipe
+[coveralls-image]: https://img.shields.io/coveralls/stream-utils/unpipe.svg
+[coveralls-url]: https://coveralls.io/r/stream-utils/unpipe?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/unpipe.svg
+[downloads-url]: https://npmjs.org/package/unpipe
diff --git a/backend/node_modules/unpipe/index.js b/backend/node_modules/unpipe/index.js
new file mode 100644
index 0000000..15c3d97
--- /dev/null
+++ b/backend/node_modules/unpipe/index.js
@@ -0,0 +1,69 @@
+/*!
+ * unpipe
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = unpipe
+
+/**
+ * Determine if there are Node.js pipe-like data listeners.
+ * @private
+ */
+
+function hasPipeDataListeners(stream) {
+  var listeners = stream.listeners('data')
+
+  for (var i = 0; i < listeners.length; i++) {
+    if (listeners[i].name === 'ondata') {
+      return true
+    }
+  }
+
+  return false
+}
+
+/**
+ * Unpipe a stream from all destinations.
+ *
+ * @param {object} stream
+ * @public
+ */
+
+function unpipe(stream) {
+  if (!stream) {
+    throw new TypeError('argument stream is required')
+  }
+
+  if (typeof stream.unpipe === 'function') {
+    // new-style
+    stream.unpipe()
+    return
+  }
+
+  // Node.js 0.8 hack
+  if (!hasPipeDataListeners(stream)) {
+    return
+  }
+
+  var listener
+  var listeners = stream.listeners('close')
+
+  for (var i = 0; i < listeners.length; i++) {
+    listener = listeners[i]
+
+    if (listener.name !== 'cleanup' && listener.name !== 'onclose') {
+      continue
+    }
+
+    // invoke the listener
+    listener.call(stream)
+  }
+}
diff --git a/backend/node_modules/unpipe/package.json b/backend/node_modules/unpipe/package.json
new file mode 100644
index 0000000..a2b7358
--- /dev/null
+++ b/backend/node_modules/unpipe/package.json
@@ -0,0 +1,27 @@
+{
+  "name": "unpipe",
+  "description": "Unpipe a stream from all destinations",
+  "version": "1.0.0",
+  "author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
+  "license": "MIT",
+  "repository": "stream-utils/unpipe",
+  "devDependencies": {
+    "istanbul": "0.3.15",
+    "mocha": "2.2.5",
+    "readable-stream": "1.1.13"
+  },
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "README.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/",
+    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/"
+  }
+}
diff --git a/backend/node_modules/util-deprecate/History.md b/backend/node_modules/util-deprecate/History.md
new file mode 100644
index 0000000..acc8675
--- /dev/null
+++ b/backend/node_modules/util-deprecate/History.md
@@ -0,0 +1,16 @@
+
+1.0.2 / 2015-10-07
+==================
+
+  * use try/catch when checking `localStorage` (#3, @kumavis)
+
+1.0.1 / 2014-11-25
+==================
+
+  * browser: use `console.warn()` for deprecation calls
+  * browser: more jsdocs
+
+1.0.0 / 2014-04-30
+==================
+
+  * initial commit
diff --git a/backend/node_modules/util-deprecate/LICENSE b/backend/node_modules/util-deprecate/LICENSE
new file mode 100644
index 0000000..6a60e8c
--- /dev/null
+++ b/backend/node_modules/util-deprecate/LICENSE
@@ -0,0 +1,24 @@
+(The MIT License)
+
+Copyright (c) 2014 Nathan Rajlich <nathan@tootallnate.net>
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/util-deprecate/README.md b/backend/node_modules/util-deprecate/README.md
new file mode 100644
index 0000000..75622fa
--- /dev/null
+++ b/backend/node_modules/util-deprecate/README.md
@@ -0,0 +1,53 @@
+util-deprecate
+==============
+### The Node.js `util.deprecate()` function with browser support
+
+In Node.js, this module simply re-exports the `util.deprecate()` function.
+
+In the web browser (i.e. via browserify), a browser-specific implementation
+of the `util.deprecate()` function is used.
+
+
+## API
+
+A `deprecate()` function is the only thing exposed by this module.
+
+``` javascript
+// setup:
+exports.foo = deprecate(foo, 'foo() is deprecated, use bar() instead');
+
+
+// users see:
+foo();
+// foo() is deprecated, use bar() instead
+foo();
+foo();
+```
+
+
+## License
+
+(The MIT License)
+
+Copyright (c) 2014 Nathan Rajlich <nathan@tootallnate.net>
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/util-deprecate/browser.js b/backend/node_modules/util-deprecate/browser.js
new file mode 100644
index 0000000..549ae2f
--- /dev/null
+++ b/backend/node_modules/util-deprecate/browser.js
@@ -0,0 +1,67 @@
+
+/**
+ * Module exports.
+ */
+
+module.exports = deprecate;
+
+/**
+ * Mark that a method should not be used.
+ * Returns a modified function which warns once by default.
+ *
+ * If `localStorage.noDeprecation = true` is set, then it is a no-op.
+ *
+ * If `localStorage.throwDeprecation = true` is set, then deprecated functions
+ * will throw an Error when invoked.
+ *
+ * If `localStorage.traceDeprecation = true` is set, then deprecated functions
+ * will invoke `console.trace()` instead of `console.error()`.
+ *
+ * @param {Function} fn - the function to deprecate
+ * @param {String} msg - the string to print to the console when `fn` is invoked
+ * @returns {Function} a new "deprecated" version of `fn`
+ * @api public
+ */
+
+function deprecate (fn, msg) {
+  if (config('noDeprecation')) {
+    return fn;
+  }
+
+  var warned = false;
+  function deprecated() {
+    if (!warned) {
+      if (config('throwDeprecation')) {
+        throw new Error(msg);
+      } else if (config('traceDeprecation')) {
+        console.trace(msg);
+      } else {
+        console.warn(msg);
+      }
+      warned = true;
+    }
+    return fn.apply(this, arguments);
+  }
+
+  return deprecated;
+}
+
+/**
+ * Checks `localStorage` for boolean values for the given `name`.
+ *
+ * @param {String} name
+ * @returns {Boolean}
+ * @api private
+ */
+
+function config (name) {
+  // accessing global.localStorage can trigger a DOMException in sandboxed iframes
+  try {
+    if (!global.localStorage) return false;
+  } catch (_) {
+    return false;
+  }
+  var val = global.localStorage[name];
+  if (null == val) return false;
+  return String(val).toLowerCase() === 'true';
+}
diff --git a/backend/node_modules/util-deprecate/node.js b/backend/node_modules/util-deprecate/node.js
new file mode 100644
index 0000000..5e6fcff
--- /dev/null
+++ b/backend/node_modules/util-deprecate/node.js
@@ -0,0 +1,6 @@
+
+/**
+ * For Node.js, simply re-export the core `util.deprecate` function.
+ */
+
+module.exports = require('util').deprecate;
diff --git a/backend/node_modules/util-deprecate/package.json b/backend/node_modules/util-deprecate/package.json
new file mode 100644
index 0000000..2e79f89
--- /dev/null
+++ b/backend/node_modules/util-deprecate/package.json
@@ -0,0 +1,27 @@
+{
+  "name": "util-deprecate",
+  "version": "1.0.2",
+  "description": "The Node.js `util.deprecate()` function with browser support",
+  "main": "node.js",
+  "browser": "browser.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/TooTallNate/util-deprecate.git"
+  },
+  "keywords": [
+    "util",
+    "deprecate",
+    "browserify",
+    "browser",
+    "node"
+  ],
+  "author": "Nathan Rajlich <nathan@tootallnate.net> (http://n8.io/)",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/TooTallNate/util-deprecate/issues"
+  },
+  "homepage": "https://github.com/TooTallNate/util-deprecate"
+}
diff --git a/backend/node_modules/utils-merge/.npmignore b/backend/node_modules/utils-merge/.npmignore
new file mode 100644
index 0000000..3e53844
--- /dev/null
+++ b/backend/node_modules/utils-merge/.npmignore
@@ -0,0 +1,9 @@
+CONTRIBUTING.md
+Makefile
+docs/
+examples/
+reports/
+test/
+
+.jshintrc
+.travis.yml
diff --git a/backend/node_modules/utils-merge/LICENSE b/backend/node_modules/utils-merge/LICENSE
new file mode 100644
index 0000000..76f6d08
--- /dev/null
+++ b/backend/node_modules/utils-merge/LICENSE
@@ -0,0 +1,20 @@
+The MIT License (MIT)
+
+Copyright (c) 2013-2017 Jared Hanson
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/utils-merge/README.md b/backend/node_modules/utils-merge/README.md
new file mode 100644
index 0000000..0cb7117
--- /dev/null
+++ b/backend/node_modules/utils-merge/README.md
@@ -0,0 +1,34 @@
+# utils-merge
+
+[![Version](https://img.shields.io/npm/v/utils-merge.svg?label=version)](https://www.npmjs.com/package/utils-merge)
+[![Build](https://img.shields.io/travis/jaredhanson/utils-merge.svg)](https://travis-ci.org/jaredhanson/utils-merge)
+[![Quality](https://img.shields.io/codeclimate/github/jaredhanson/utils-merge.svg?label=quality)](https://codeclimate.com/github/jaredhanson/utils-merge)
+[![Coverage](https://img.shields.io/coveralls/jaredhanson/utils-merge.svg)](https://coveralls.io/r/jaredhanson/utils-merge)
+[![Dependencies](https://img.shields.io/david/jaredhanson/utils-merge.svg)](https://david-dm.org/jaredhanson/utils-merge)
+
+
+Merges the properties from a source object into a destination object.
+
+## Install
+
+```bash
+$ npm install utils-merge
+```
+
+## Usage
+
+```javascript
+var a = { foo: 'bar' }
+  , b = { bar: 'baz' };
+
+merge(a, b);
+// => { foo: 'bar', bar: 'baz' }
+```
+
+## License
+
+[The MIT License](http://opensource.org/licenses/MIT)
+
+Copyright (c) 2013-2017 Jared Hanson <[http://jaredhanson.net/](http://jaredhanson.net/)>
+
+<a target='_blank' rel='nofollow' href='https://app.codesponsor.io/link/vK9dyjRnnWsMzzJTQ57fRJpH/jaredhanson/utils-merge'>  <img alt='Sponsor' width='888' height='68' src='https://app.codesponsor.io/embed/vK9dyjRnnWsMzzJTQ57fRJpH/jaredhanson/utils-merge.svg' /></a>
diff --git a/backend/node_modules/utils-merge/index.js b/backend/node_modules/utils-merge/index.js
new file mode 100644
index 0000000..4265c69
--- /dev/null
+++ b/backend/node_modules/utils-merge/index.js
@@ -0,0 +1,23 @@
+/**
+ * Merge object b with object a.
+ *
+ *     var a = { foo: 'bar' }
+ *       , b = { bar: 'baz' };
+ *
+ *     merge(a, b);
+ *     // => { foo: 'bar', bar: 'baz' }
+ *
+ * @param {Object} a
+ * @param {Object} b
+ * @return {Object}
+ * @api public
+ */
+
+exports = module.exports = function(a, b){
+  if (a && b) {
+    for (var key in b) {
+      a[key] = b[key];
+    }
+  }
+  return a;
+};
diff --git a/backend/node_modules/utils-merge/package.json b/backend/node_modules/utils-merge/package.json
new file mode 100644
index 0000000..e36b078
--- /dev/null
+++ b/backend/node_modules/utils-merge/package.json
@@ -0,0 +1,40 @@
+{
+  "name": "utils-merge",
+  "version": "1.0.1",
+  "description": "merge() utility function",
+  "keywords": [
+    "util"
+  ],
+  "author": {
+    "name": "Jared Hanson",
+    "email": "jaredhanson@gmail.com",
+    "url": "http://www.jaredhanson.net/"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/jaredhanson/utils-merge.git"
+  },
+  "bugs": {
+    "url": "http://github.com/jaredhanson/utils-merge/issues"
+  },
+  "license": "MIT",
+  "licenses": [
+    {
+      "type": "MIT",
+      "url": "http://opensource.org/licenses/MIT"
+    }
+  ],
+  "main": "./index",
+  "dependencies": {},
+  "devDependencies": {
+    "make-node": "0.3.x",
+    "mocha": "1.x.x",
+    "chai": "1.x.x"
+  },
+  "engines": {
+    "node": ">= 0.4.0"
+  },
+  "scripts": {
+    "test": "node_modules/.bin/mocha --reporter spec --require test/bootstrap/node test/*.test.js"
+  }
+}
diff --git a/backend/node_modules/vary/HISTORY.md b/backend/node_modules/vary/HISTORY.md
new file mode 100644
index 0000000..f6cbcf7
--- /dev/null
+++ b/backend/node_modules/vary/HISTORY.md
@@ -0,0 +1,39 @@
+1.1.2 / 2017-09-23
+==================
+
+  * perf: improve header token parsing speed
+
+1.1.1 / 2017-03-20
+==================
+
+  * perf: hoist regular expression
+
+1.1.0 / 2015-09-29
+==================
+
+  * Only accept valid field names in the `field` argument
+    - Ensures the resulting string is a valid HTTP header value
+
+1.0.1 / 2015-07-08
+==================
+
+  * Fix setting empty header from empty `field`
+  * perf: enable strict mode
+  * perf: remove argument reassignments
+
+1.0.0 / 2014-08-10
+==================
+
+  * Accept valid `Vary` header string as `field`
+  * Add `vary.append` for low-level string manipulation
+  * Move to `jshttp` orgainzation
+
+0.1.0 / 2014-06-05
+==================
+
+  * Support array of fields to set
+
+0.0.0 / 2014-06-04
+==================
+
+  * Initial release
diff --git a/backend/node_modules/vary/LICENSE b/backend/node_modules/vary/LICENSE
new file mode 100644
index 0000000..84441fb
--- /dev/null
+++ b/backend/node_modules/vary/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2014-2017 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/vary/README.md b/backend/node_modules/vary/README.md
new file mode 100644
index 0000000..cc000b3
--- /dev/null
+++ b/backend/node_modules/vary/README.md
@@ -0,0 +1,101 @@
+# vary
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Manipulate the HTTP Vary header
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally): 
+
+```sh
+$ npm install vary
+```
+
+## API
+
+<!-- eslint-disable no-unused-vars -->
+
+```js
+var vary = require('vary')
+```
+
+### vary(res, field)
+
+Adds the given header `field` to the `Vary` response header of `res`.
+This can be a string of a single field, a string of a valid `Vary`
+header, or an array of multiple fields.
+
+This will append the header if not already listed, otherwise leaves
+it listed in the current location.
+
+<!-- eslint-disable no-undef -->
+
+```js
+// Append "Origin" to the Vary header of the response
+vary(res, 'Origin')
+```
+
+### vary.append(header, field)
+
+Adds the given header `field` to the `Vary` response header string `header`.
+This can be a string of a single field, a string of a valid `Vary` header,
+or an array of multiple fields.
+
+This will append the header if not already listed, otherwise leaves
+it listed in the current location. The new header string is returned.
+
+<!-- eslint-disable no-undef -->
+
+```js
+// Get header string appending "Origin" to "Accept, User-Agent"
+vary.append('Accept, User-Agent', 'Origin')
+```
+
+## Examples
+
+### Updating the Vary header when content is based on it
+
+```js
+var http = require('http')
+var vary = require('vary')
+
+http.createServer(function onRequest (req, res) {
+  // about to user-agent sniff
+  vary(res, 'User-Agent')
+
+  var ua = req.headers['user-agent'] || ''
+  var isMobile = /mobi|android|touch|mini/i.test(ua)
+
+  // serve site, depending on isMobile
+  res.setHeader('Content-Type', 'text/html')
+  res.end('You are (probably) ' + (isMobile ? '' : 'not ') + 'a mobile user')
+})
+```
+
+## Testing
+
+```sh
+$ npm test
+```
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/vary.svg
+[npm-url]: https://npmjs.org/package/vary
+[node-version-image]: https://img.shields.io/node/v/vary.svg
+[node-version-url]: https://nodejs.org/en/download
+[travis-image]: https://img.shields.io/travis/jshttp/vary/master.svg
+[travis-url]: https://travis-ci.org/jshttp/vary
+[coveralls-image]: https://img.shields.io/coveralls/jshttp/vary/master.svg
+[coveralls-url]: https://coveralls.io/r/jshttp/vary
+[downloads-image]: https://img.shields.io/npm/dm/vary.svg
+[downloads-url]: https://npmjs.org/package/vary
diff --git a/backend/node_modules/vary/index.js b/backend/node_modules/vary/index.js
new file mode 100644
index 0000000..5b5e741
--- /dev/null
+++ b/backend/node_modules/vary/index.js
@@ -0,0 +1,149 @@
+/*!
+ * vary
+ * Copyright(c) 2014-2017 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ */
+
+module.exports = vary
+module.exports.append = append
+
+/**
+ * RegExp to match field-name in RFC 7230 sec 3.2
+ *
+ * field-name    = token
+ * token         = 1*tchar
+ * tchar         = "!" / "#" / "$" / "%" / "&" / "'" / "*"
+ *               / "+" / "-" / "." / "^" / "_" / "`" / "|" / "~"
+ *               / DIGIT / ALPHA
+ *               ; any VCHAR, except delimiters
+ */
+
+var FIELD_NAME_REGEXP = /^[!#$%&'*+\-.^_`|~0-9A-Za-z]+$/
+
+/**
+ * Append a field to a vary header.
+ *
+ * @param {String} header
+ * @param {String|Array} field
+ * @return {String}
+ * @public
+ */
+
+function append (header, field) {
+  if (typeof header !== 'string') {
+    throw new TypeError('header argument is required')
+  }
+
+  if (!field) {
+    throw new TypeError('field argument is required')
+  }
+
+  // get fields array
+  var fields = !Array.isArray(field)
+    ? parse(String(field))
+    : field
+
+  // assert on invalid field names
+  for (var j = 0; j < fields.length; j++) {
+    if (!FIELD_NAME_REGEXP.test(fields[j])) {
+      throw new TypeError('field argument contains an invalid header name')
+    }
+  }
+
+  // existing, unspecified vary
+  if (header === '*') {
+    return header
+  }
+
+  // enumerate current values
+  var val = header
+  var vals = parse(header.toLowerCase())
+
+  // unspecified vary
+  if (fields.indexOf('*') !== -1 || vals.indexOf('*') !== -1) {
+    return '*'
+  }
+
+  for (var i = 0; i < fields.length; i++) {
+    var fld = fields[i].toLowerCase()
+
+    // append value (case-preserving)
+    if (vals.indexOf(fld) === -1) {
+      vals.push(fld)
+      val = val
+        ? val + ', ' + fields[i]
+        : fields[i]
+    }
+  }
+
+  return val
+}
+
+/**
+ * Parse a vary header into an array.
+ *
+ * @param {String} header
+ * @return {Array}
+ * @private
+ */
+
+function parse (header) {
+  var end = 0
+  var list = []
+  var start = 0
+
+  // gather tokens
+  for (var i = 0, len = header.length; i < len; i++) {
+    switch (header.charCodeAt(i)) {
+      case 0x20: /*   */
+        if (start === end) {
+          start = end = i + 1
+        }
+        break
+      case 0x2c: /* , */
+        list.push(header.substring(start, end))
+        start = end = i + 1
+        break
+      default:
+        end = i + 1
+        break
+    }
+  }
+
+  // final token
+  list.push(header.substring(start, end))
+
+  return list
+}
+
+/**
+ * Mark that a request is varied on a header field.
+ *
+ * @param {Object} res
+ * @param {String|Array} field
+ * @public
+ */
+
+function vary (res, field) {
+  if (!res || !res.getHeader || !res.setHeader) {
+    // quack quack
+    throw new TypeError('res argument is required')
+  }
+
+  // get existing header
+  var val = res.getHeader('Vary') || ''
+  var header = Array.isArray(val)
+    ? val.join(', ')
+    : String(val)
+
+  // set new header
+  if ((val = append(header, field))) {
+    res.setHeader('Vary', val)
+  }
+}
diff --git a/backend/node_modules/vary/package.json b/backend/node_modules/vary/package.json
new file mode 100644
index 0000000..028f72a
--- /dev/null
+++ b/backend/node_modules/vary/package.json
@@ -0,0 +1,43 @@
+{
+  "name": "vary",
+  "description": "Manipulate the HTTP Vary header",
+  "version": "1.1.2",
+  "author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
+  "license": "MIT",
+  "keywords": [
+    "http",
+    "res",
+    "vary"
+  ],
+  "repository": "jshttp/vary",
+  "devDependencies": {
+    "beautify-benchmark": "0.2.4",
+    "benchmark": "2.1.4",
+    "eslint": "3.19.0",
+    "eslint-config-standard": "10.2.1",
+    "eslint-plugin-import": "2.7.0",
+    "eslint-plugin-markdown": "1.0.0-beta.6",
+    "eslint-plugin-node": "5.1.1",
+    "eslint-plugin-promise": "3.5.0",
+    "eslint-plugin-standard": "3.0.1",
+    "istanbul": "0.4.5",
+    "mocha": "2.5.3",
+    "supertest": "1.1.0"
+  },
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "README.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "bench": "node benchmark/index.js",
+    "lint": "eslint --plugin markdown --ext js,md .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/",
+    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/"
+  }
+}
diff --git a/backend/node_modules/webidl-conversions/LICENSE.md b/backend/node_modules/webidl-conversions/LICENSE.md
new file mode 100644
index 0000000..d4a994f
--- /dev/null
+++ b/backend/node_modules/webidl-conversions/LICENSE.md
@@ -0,0 +1,12 @@
+# The BSD 2-Clause License
+
+Copyright (c) 2014, Domenic Denicola
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/backend/node_modules/webidl-conversions/README.md b/backend/node_modules/webidl-conversions/README.md
new file mode 100644
index 0000000..16cc393
--- /dev/null
+++ b/backend/node_modules/webidl-conversions/README.md
@@ -0,0 +1,99 @@
+# Web IDL Type Conversions on JavaScript Values
+
+This package implements, in JavaScript, the algorithms to convert a given JavaScript value according to a given [Web IDL](http://heycam.github.io/webidl/) [type](http://heycam.github.io/webidl/#idl-types).
+
+The goal is that you should be able to write code like
+
+```js
+"use strict";
+const conversions = require("webidl-conversions");
+
+function doStuff(x, y) {
+    x = conversions["boolean"](x);
+    y = conversions["unsigned long"](y);
+    // actual algorithm code here
+}
+```
+
+and your function `doStuff` will behave the same as a Web IDL operation declared as
+
+```webidl
+undefined doStuff(boolean x, unsigned long y);
+```
+
+## API
+
+This package's main module's default export is an object with a variety of methods, each corresponding to a different Web IDL type. Each method, when invoked on a JavaScript value, will give back the new JavaScript value that results after passing through the Web IDL conversion rules. (See below for more details on what that means.) Alternately, the method could throw an error, if the Web IDL algorithm is specified to do so: for example `conversions["float"](NaN)` [will throw a `TypeError`](http://heycam.github.io/webidl/#es-float).
+
+Each method also accepts a second, optional, parameter for miscellaneous options. For conversion methods that throw errors, a string option `{ context }` may be provided to provide more information in the error message. (For example, `conversions["float"](NaN, { context: "Argument 1 of Interface's operation" })` will throw an error with message `"Argument 1 of Interface's operation is not a finite floating-point value."`)
+
+If we are dealing with multiple JavaScript realms (such as those created using Node.js' [vm](https://nodejs.org/api/vm.html) module or the HTML `iframe` element), and exceptions from another realm need to be thrown, one can supply an object option `globals` containing the following properties:
+
+```js
+{
+  globals: {
+    Number,
+    String,
+    TypeError
+  }
+}
+```
+
+Those specific functions will be used when throwing exceptions.
+
+Specific conversions may also accept other options, the details of which can be found below.
+
+## Conversions implemented
+
+Conversions for all of the basic types from the Web IDL specification are implemented:
+
+- [`any`](https://heycam.github.io/webidl/#es-any)
+- [`undefined`](https://heycam.github.io/webidl/#es-undefined)
+- [`boolean`](https://heycam.github.io/webidl/#es-boolean)
+- [Integer types](https://heycam.github.io/webidl/#es-integer-types), which can additionally be provided the boolean options `{ clamp, enforceRange }` as a second parameter
+- [`float`](https://heycam.github.io/webidl/#es-float), [`unrestricted float`](https://heycam.github.io/webidl/#es-unrestricted-float)
+- [`double`](https://heycam.github.io/webidl/#es-double), [`unrestricted double`](https://heycam.github.io/webidl/#es-unrestricted-double)
+- [`DOMString`](https://heycam.github.io/webidl/#es-DOMString), which can additionally be provided the boolean option `{ treatNullAsEmptyString }` as a second parameter
+- [`ByteString`](https://heycam.github.io/webidl/#es-ByteString), [`USVString`](https://heycam.github.io/webidl/#es-USVString)
+- [`object`](https://heycam.github.io/webidl/#es-object)
+- [Buffer source types](https://heycam.github.io/webidl/#es-buffer-source-types), which can additionally be provided with the boolean option `{ allowShared }` as a second parameter
+
+Additionally, for convenience, the following derived type definitions are implemented:
+
+- [`ArrayBufferView`](https://heycam.github.io/webidl/#ArrayBufferView), which can additionally be provided with the boolean option `{ allowShared }` as a second parameter
+- [`BufferSource`](https://heycam.github.io/webidl/#BufferSource)
+- [`DOMTimeStamp`](https://heycam.github.io/webidl/#DOMTimeStamp)
+
+Derived types, such as nullable types, promise types, sequences, records, etc. are not handled by this library. You may wish to investigate the [webidl2js](https://github.com/jsdom/webidl2js) project.
+
+### A note on the `long long` types
+
+The `long long` and `unsigned long long` Web IDL types can hold values that cannot be stored in JavaScript numbers. Conversions are still accurate as we make use of BigInt in the conversion process, but in the case of `unsigned long long` we simply cannot represent some possible output values in JavaScript. For example, converting the JavaScript number `-1` to a Web IDL `unsigned long long` is supposed to produce the Web IDL value `18446744073709551615`. Since we are representing our Web IDL values in JavaScript, we can't represent `18446744073709551615`, so we instead the best we could do is `18446744073709551616` as the output.
+
+To mitigate this, we could return the raw BigInt value from the conversion function, but right now it is not implemented. If your use case requires such precision, [file an issue](https://github.com/jsdom/webidl-conversions/issues/new).
+
+On the other hand, `long long` conversion is always accurate, since the input value can never be more precise than the output value.
+
+### A note on `BufferSource` types
+
+All of the `BufferSource` types will throw when the relevant `ArrayBuffer` has been detached. This technically is not part of the [specified conversion algorithm](https://heycam.github.io/webidl/#es-buffer-source-types), but instead part of the [getting a reference/getting a copy](https://heycam.github.io/webidl/#ref-for-dfn-get-buffer-source-reference%E2%91%A0) algorithms. We've consolidated them here for convenience and ease of implementation, but if there is a need to separate them in the future, please open an issue so we can investigate.
+
+## Background
+
+What's actually going on here, conceptually, is pretty weird. Let's try to explain.
+
+Web IDL, as part of its madness-inducing design, has its own type system. When people write algorithms in web platform specs, they usually operate on Web IDL values, i.e. instances of Web IDL types. For example, if they were specifying the algorithm for our `doStuff` operation above, they would treat `x` as a Web IDL value of [Web IDL type `boolean`](http://heycam.github.io/webidl/#idl-boolean). Crucially, they would _not_ treat `x` as a JavaScript variable whose value is either the JavaScript `true` or `false`. They're instead working in a different type system altogether, with its own rules.
+
+Separately from its type system, Web IDL defines a ["binding"](http://heycam.github.io/webidl/#ecmascript-binding) of the type system into JavaScript. This contains rules like: when you pass a JavaScript value to the JavaScript method that manifests a given Web IDL operation, how does that get converted into a Web IDL value? For example, a JavaScript `true` passed in the position of a Web IDL `boolean` argument becomes a Web IDL `true`. But, a JavaScript `true` passed in the position of a [Web IDL `unsigned long`](http://heycam.github.io/webidl/#idl-unsigned-long) becomes a Web IDL `1`. And so on.
+
+Finally, we have the actual implementation code. This is usually C++, although these days [some smart people are using Rust](https://github.com/servo/servo). The implementation, of course, has its own type system. So when they implement the Web IDL algorithms, they don't actually use Web IDL values, since those aren't "real" outside of specs. Instead, implementations apply the Web IDL binding rules in such a way as to convert incoming JavaScript values into C++ values. For example, if code in the browser called `doStuff(true, true)`, then the implementation code would eventually receive a C++ `bool` containing `true` and a C++ `uint32_t` containing `1`.
+
+The upside of all this is that implementations can abstract all the conversion logic away, letting Web IDL handle it, and focus on implementing the relevant methods in C++ with values of the correct type already provided. That is payoff of Web IDL, in a nutshell.
+
+And getting to that payoff is the goal of _this_ project—but for JavaScript implementations, instead of C++ ones. That is, this library is designed to make it easier for JavaScript developers to write functions that behave like a given Web IDL operation. So conceptually, the conversion pipeline, which in its general form is JavaScript values ↦ Web IDL values ↦ implementation-language values, in this case becomes JavaScript values ↦ Web IDL values ↦ JavaScript values. And that intermediate step is where all the logic is performed: a JavaScript `true` becomes a Web IDL `1` in an unsigned long context, which then becomes a JavaScript `1`.
+
+## Don't use this
+
+Seriously, why would you ever use this? You really shouldn't. Web IDL is … strange, and you shouldn't be emulating its semantics. If you're looking for a generic argument-processing library, you should find one with better rules than those from Web IDL. In general, your JavaScript should not be trying to become more like Web IDL; if anything, we should fix Web IDL to make it more like JavaScript.
+
+The _only_ people who should use this are those trying to create faithful implementations (or polyfills) of web platform interfaces defined in Web IDL. Its main consumer is the [jsdom](https://github.com/jsdom/jsdom) project.
diff --git a/backend/node_modules/webidl-conversions/lib/index.js b/backend/node_modules/webidl-conversions/lib/index.js
new file mode 100644
index 0000000..0229347
--- /dev/null
+++ b/backend/node_modules/webidl-conversions/lib/index.js
@@ -0,0 +1,450 @@
+"use strict";
+
+function makeException(ErrorType, message, options) {
+  if (options.globals) {
+    ErrorType = options.globals[ErrorType.name];
+  }
+  return new ErrorType(`${options.context ? options.context : "Value"} ${message}.`);
+}
+
+function toNumber(value, options) {
+  if (typeof value === "bigint") {
+    throw makeException(TypeError, "is a BigInt which cannot be converted to a number", options);
+  }
+  if (!options.globals) {
+    return Number(value);
+  }
+  return options.globals.Number(value);
+}
+
+// Round x to the nearest integer, choosing the even integer if it lies halfway between two.
+function evenRound(x) {
+  // There are four cases for numbers with fractional part being .5:
+  //
+  // case |     x     | floor(x) | round(x) | expected | x <> 0 | x % 1 | x & 1 |   example
+  //   1  |  2n + 0.5 |  2n      |  2n + 1  |  2n      |   >    |  0.5  |   0   |  0.5 ->  0
+  //   2  |  2n + 1.5 |  2n + 1  |  2n + 2  |  2n + 2  |   >    |  0.5  |   1   |  1.5 ->  2
+  //   3  | -2n - 0.5 | -2n - 1  | -2n      | -2n      |   <    | -0.5  |   0   | -0.5 ->  0
+  //   4  | -2n - 1.5 | -2n - 2  | -2n - 1  | -2n - 2  |   <    | -0.5  |   1   | -1.5 -> -2
+  // (where n is a non-negative integer)
+  //
+  // Branch here for cases 1 and 4
+  if ((x > 0 && (x % 1) === +0.5 && (x & 1) === 0) ||
+        (x < 0 && (x % 1) === -0.5 && (x & 1) === 1)) {
+    return censorNegativeZero(Math.floor(x));
+  }
+
+  return censorNegativeZero(Math.round(x));
+}
+
+function integerPart(n) {
+  return censorNegativeZero(Math.trunc(n));
+}
+
+function sign(x) {
+  return x < 0 ? -1 : 1;
+}
+
+function modulo(x, y) {
+  // https://tc39.github.io/ecma262/#eqn-modulo
+  // Note that http://stackoverflow.com/a/4467559/3191 does NOT work for large modulos
+  const signMightNotMatch = x % y;
+  if (sign(y) !== sign(signMightNotMatch)) {
+    return signMightNotMatch + y;
+  }
+  return signMightNotMatch;
+}
+
+function censorNegativeZero(x) {
+  return x === 0 ? 0 : x;
+}
+
+function createIntegerConversion(bitLength, { unsigned }) {
+  let lowerBound, upperBound;
+  if (unsigned) {
+    lowerBound = 0;
+    upperBound = 2 ** bitLength - 1;
+  } else {
+    lowerBound = -(2 ** (bitLength - 1));
+    upperBound = 2 ** (bitLength - 1) - 1;
+  }
+
+  const twoToTheBitLength = 2 ** bitLength;
+  const twoToOneLessThanTheBitLength = 2 ** (bitLength - 1);
+
+  return (value, options = {}) => {
+    let x = toNumber(value, options);
+    x = censorNegativeZero(x);
+
+    if (options.enforceRange) {
+      if (!Number.isFinite(x)) {
+        throw makeException(TypeError, "is not a finite number", options);
+      }
+
+      x = integerPart(x);
+
+      if (x < lowerBound || x > upperBound) {
+        throw makeException(
+          TypeError,
+          `is outside the accepted range of ${lowerBound} to ${upperBound}, inclusive`,
+          options
+        );
+      }
+
+      return x;
+    }
+
+    if (!Number.isNaN(x) && options.clamp) {
+      x = Math.min(Math.max(x, lowerBound), upperBound);
+      x = evenRound(x);
+      return x;
+    }
+
+    if (!Number.isFinite(x) || x === 0) {
+      return 0;
+    }
+    x = integerPart(x);
+
+    // Math.pow(2, 64) is not accurately representable in JavaScript, so try to avoid these per-spec operations if
+    // possible. Hopefully it's an optimization for the non-64-bitLength cases too.
+    if (x >= lowerBound && x <= upperBound) {
+      return x;
+    }
+
+    // These will not work great for bitLength of 64, but oh well. See the README for more details.
+    x = modulo(x, twoToTheBitLength);
+    if (!unsigned && x >= twoToOneLessThanTheBitLength) {
+      return x - twoToTheBitLength;
+    }
+    return x;
+  };
+}
+
+function createLongLongConversion(bitLength, { unsigned }) {
+  const upperBound = Number.MAX_SAFE_INTEGER;
+  const lowerBound = unsigned ? 0 : Number.MIN_SAFE_INTEGER;
+  const asBigIntN = unsigned ? BigInt.asUintN : BigInt.asIntN;
+
+  return (value, options = {}) => {
+    let x = toNumber(value, options);
+    x = censorNegativeZero(x);
+
+    if (options.enforceRange) {
+      if (!Number.isFinite(x)) {
+        throw makeException(TypeError, "is not a finite number", options);
+      }
+
+      x = integerPart(x);
+
+      if (x < lowerBound || x > upperBound) {
+        throw makeException(
+          TypeError,
+          `is outside the accepted range of ${lowerBound} to ${upperBound}, inclusive`,
+          options
+        );
+      }
+
+      return x;
+    }
+
+    if (!Number.isNaN(x) && options.clamp) {
+      x = Math.min(Math.max(x, lowerBound), upperBound);
+      x = evenRound(x);
+      return x;
+    }
+
+    if (!Number.isFinite(x) || x === 0) {
+      return 0;
+    }
+
+    let xBigInt = BigInt(integerPart(x));
+    xBigInt = asBigIntN(bitLength, xBigInt);
+    return Number(xBigInt);
+  };
+}
+
+exports.any = value => {
+  return value;
+};
+
+exports.undefined = () => {
+  return undefined;
+};
+
+exports.boolean = value => {
+  return Boolean(value);
+};
+
+exports.byte = createIntegerConversion(8, { unsigned: false });
+exports.octet = createIntegerConversion(8, { unsigned: true });
+
+exports.short = createIntegerConversion(16, { unsigned: false });
+exports["unsigned short"] = createIntegerConversion(16, { unsigned: true });
+
+exports.long = createIntegerConversion(32, { unsigned: false });
+exports["unsigned long"] = createIntegerConversion(32, { unsigned: true });
+
+exports["long long"] = createLongLongConversion(64, { unsigned: false });
+exports["unsigned long long"] = createLongLongConversion(64, { unsigned: true });
+
+exports.double = (value, options = {}) => {
+  const x = toNumber(value, options);
+
+  if (!Number.isFinite(x)) {
+    throw makeException(TypeError, "is not a finite floating-point value", options);
+  }
+
+  return x;
+};
+
+exports["unrestricted double"] = (value, options = {}) => {
+  const x = toNumber(value, options);
+
+  return x;
+};
+
+exports.float = (value, options = {}) => {
+  const x = toNumber(value, options);
+
+  if (!Number.isFinite(x)) {
+    throw makeException(TypeError, "is not a finite floating-point value", options);
+  }
+
+  if (Object.is(x, -0)) {
+    return x;
+  }
+
+  const y = Math.fround(x);
+
+  if (!Number.isFinite(y)) {
+    throw makeException(TypeError, "is outside the range of a single-precision floating-point value", options);
+  }
+
+  return y;
+};
+
+exports["unrestricted float"] = (value, options = {}) => {
+  const x = toNumber(value, options);
+
+  if (isNaN(x)) {
+    return x;
+  }
+
+  if (Object.is(x, -0)) {
+    return x;
+  }
+
+  return Math.fround(x);
+};
+
+exports.DOMString = (value, options = {}) => {
+  if (options.treatNullAsEmptyString && value === null) {
+    return "";
+  }
+
+  if (typeof value === "symbol") {
+    throw makeException(TypeError, "is a symbol, which cannot be converted to a string", options);
+  }
+
+  const StringCtor = options.globals ? options.globals.String : String;
+  return StringCtor(value);
+};
+
+exports.ByteString = (value, options = {}) => {
+  const x = exports.DOMString(value, options);
+  let c;
+  for (let i = 0; (c = x.codePointAt(i)) !== undefined; ++i) {
+    if (c > 255) {
+      throw makeException(TypeError, "is not a valid ByteString", options);
+    }
+  }
+
+  return x;
+};
+
+exports.USVString = (value, options = {}) => {
+  const S = exports.DOMString(value, options);
+  const n = S.length;
+  const U = [];
+  for (let i = 0; i < n; ++i) {
+    const c = S.charCodeAt(i);
+    if (c < 0xD800 || c > 0xDFFF) {
+      U.push(String.fromCodePoint(c));
+    } else if (0xDC00 <= c && c <= 0xDFFF) {
+      U.push(String.fromCodePoint(0xFFFD));
+    } else if (i === n - 1) {
+      U.push(String.fromCodePoint(0xFFFD));
+    } else {
+      const d = S.charCodeAt(i + 1);
+      if (0xDC00 <= d && d <= 0xDFFF) {
+        const a = c & 0x3FF;
+        const b = d & 0x3FF;
+        U.push(String.fromCodePoint((2 << 15) + ((2 << 9) * a) + b));
+        ++i;
+      } else {
+        U.push(String.fromCodePoint(0xFFFD));
+      }
+    }
+  }
+
+  return U.join("");
+};
+
+exports.object = (value, options = {}) => {
+  if (value === null || (typeof value !== "object" && typeof value !== "function")) {
+    throw makeException(TypeError, "is not an object", options);
+  }
+
+  return value;
+};
+
+const abByteLengthGetter =
+    Object.getOwnPropertyDescriptor(ArrayBuffer.prototype, "byteLength").get;
+const sabByteLengthGetter =
+    typeof SharedArrayBuffer === "function" ?
+      Object.getOwnPropertyDescriptor(SharedArrayBuffer.prototype, "byteLength").get :
+      null;
+
+function isNonSharedArrayBuffer(value) {
+  try {
+    // This will throw on SharedArrayBuffers, but not detached ArrayBuffers.
+    // (The spec says it should throw, but the spec conflicts with implementations: https://github.com/tc39/ecma262/issues/678)
+    abByteLengthGetter.call(value);
+
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+function isSharedArrayBuffer(value) {
+  try {
+    sabByteLengthGetter.call(value);
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+function isArrayBufferDetached(value) {
+  try {
+    // eslint-disable-next-line no-new
+    new Uint8Array(value);
+    return false;
+  } catch {
+    return true;
+  }
+}
+
+exports.ArrayBuffer = (value, options = {}) => {
+  if (!isNonSharedArrayBuffer(value)) {
+    if (options.allowShared && !isSharedArrayBuffer(value)) {
+      throw makeException(TypeError, "is not an ArrayBuffer or SharedArrayBuffer", options);
+    }
+    throw makeException(TypeError, "is not an ArrayBuffer", options);
+  }
+  if (isArrayBufferDetached(value)) {
+    throw makeException(TypeError, "is a detached ArrayBuffer", options);
+  }
+
+  return value;
+};
+
+const dvByteLengthGetter =
+    Object.getOwnPropertyDescriptor(DataView.prototype, "byteLength").get;
+exports.DataView = (value, options = {}) => {
+  try {
+    dvByteLengthGetter.call(value);
+  } catch (e) {
+    throw makeException(TypeError, "is not a DataView", options);
+  }
+
+  if (!options.allowShared && isSharedArrayBuffer(value.buffer)) {
+    throw makeException(TypeError, "is backed by a SharedArrayBuffer, which is not allowed", options);
+  }
+  if (isArrayBufferDetached(value.buffer)) {
+    throw makeException(TypeError, "is backed by a detached ArrayBuffer", options);
+  }
+
+  return value;
+};
+
+// Returns the unforgeable `TypedArray` constructor name or `undefined`,
+// if the `this` value isn't a valid `TypedArray` object.
+//
+// https://tc39.es/ecma262/#sec-get-%typedarray%.prototype-@@tostringtag
+const typedArrayNameGetter = Object.getOwnPropertyDescriptor(
+  Object.getPrototypeOf(Uint8Array).prototype,
+  Symbol.toStringTag
+).get;
+[
+  Int8Array,
+  Int16Array,
+  Int32Array,
+  Uint8Array,
+  Uint16Array,
+  Uint32Array,
+  Uint8ClampedArray,
+  Float32Array,
+  Float64Array
+].forEach(func => {
+  const { name } = func;
+  const article = /^[AEIOU]/u.test(name) ? "an" : "a";
+  exports[name] = (value, options = {}) => {
+    if (!ArrayBuffer.isView(value) || typedArrayNameGetter.call(value) !== name) {
+      throw makeException(TypeError, `is not ${article} ${name} object`, options);
+    }
+    if (!options.allowShared && isSharedArrayBuffer(value.buffer)) {
+      throw makeException(TypeError, "is a view on a SharedArrayBuffer, which is not allowed", options);
+    }
+    if (isArrayBufferDetached(value.buffer)) {
+      throw makeException(TypeError, "is a view on a detached ArrayBuffer", options);
+    }
+
+    return value;
+  };
+});
+
+// Common definitions
+
+exports.ArrayBufferView = (value, options = {}) => {
+  if (!ArrayBuffer.isView(value)) {
+    throw makeException(TypeError, "is not a view on an ArrayBuffer or SharedArrayBuffer", options);
+  }
+
+  if (!options.allowShared && isSharedArrayBuffer(value.buffer)) {
+    throw makeException(TypeError, "is a view on a SharedArrayBuffer, which is not allowed", options);
+  }
+
+  if (isArrayBufferDetached(value.buffer)) {
+    throw makeException(TypeError, "is a view on a detached ArrayBuffer", options);
+  }
+  return value;
+};
+
+exports.BufferSource = (value, options = {}) => {
+  if (ArrayBuffer.isView(value)) {
+    if (!options.allowShared && isSharedArrayBuffer(value.buffer)) {
+      throw makeException(TypeError, "is a view on a SharedArrayBuffer, which is not allowed", options);
+    }
+
+    if (isArrayBufferDetached(value.buffer)) {
+      throw makeException(TypeError, "is a view on a detached ArrayBuffer", options);
+    }
+    return value;
+  }
+
+  if (!options.allowShared && !isNonSharedArrayBuffer(value)) {
+    throw makeException(TypeError, "is not an ArrayBuffer or a view on one", options);
+  }
+  if (options.allowShared && !isSharedArrayBuffer(value) && !isNonSharedArrayBuffer(value)) {
+    throw makeException(TypeError, "is not an ArrayBuffer, SharedArrayBuffer, or a view on one", options);
+  }
+  if (isArrayBufferDetached(value)) {
+    throw makeException(TypeError, "is a detached ArrayBuffer", options);
+  }
+
+  return value;
+};
+
+exports.DOMTimeStamp = exports["unsigned long long"];
diff --git a/backend/node_modules/webidl-conversions/package.json b/backend/node_modules/webidl-conversions/package.json
new file mode 100644
index 0000000..20747bb
--- /dev/null
+++ b/backend/node_modules/webidl-conversions/package.json
@@ -0,0 +1,35 @@
+{
+  "name": "webidl-conversions",
+  "version": "7.0.0",
+  "description": "Implements the WebIDL algorithms for converting to and from JavaScript values",
+  "main": "lib/index.js",
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha test/*.js",
+    "test-no-sab": "mocha --parallel --jobs 2 --require test/helpers/delete-sab.js test/*.js",
+    "coverage": "nyc mocha test/*.js"
+  },
+  "_scripts_comments": {
+    "test-no-sab": "Node.js internals are broken by deleting SharedArrayBuffer if you run tests on the main thread. Using Mocha's parallel mode avoids this."
+  },
+  "repository": "jsdom/webidl-conversions",
+  "keywords": [
+    "webidl",
+    "web",
+    "types"
+  ],
+  "files": [
+    "lib/"
+  ],
+  "author": "Domenic Denicola <d@domenic.me> (https://domenic.me/)",
+  "license": "BSD-2-Clause",
+  "devDependencies": {
+    "@domenic/eslint-config": "^1.3.0",
+    "eslint": "^7.32.0",
+    "mocha": "^9.1.1",
+    "nyc": "^15.1.0"
+  },
+  "engines": {
+    "node": ">=12"
+  }
+}
diff --git a/backend/node_modules/whatwg-url/LICENSE.txt b/backend/node_modules/whatwg-url/LICENSE.txt
new file mode 100644
index 0000000..8e8c25c
--- /dev/null
+++ b/backend/node_modules/whatwg-url/LICENSE.txt
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sebastian Mayr
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/whatwg-url/README.md b/backend/node_modules/whatwg-url/README.md
new file mode 100644
index 0000000..cb9b28c
--- /dev/null
+++ b/backend/node_modules/whatwg-url/README.md
@@ -0,0 +1,106 @@
+# whatwg-url
+
+whatwg-url is a full implementation of the WHATWG [URL Standard](https://url.spec.whatwg.org/). It can be used standalone, but it also exposes a lot of the internal algorithms that are useful for integrating a URL parser into a project like [jsdom](https://github.com/jsdom/jsdom).
+
+## Specification conformance
+
+whatwg-url is currently up to date with the URL spec up to commit [da212c9](https://github.com/whatwg/url/commit/da212c98f0bba9c35aec3728bbcc13f8f3a7eb52).
+
+For `file:` URLs, whose [origin is left unspecified](https://url.spec.whatwg.org/#concept-url-origin), whatwg-url chooses to use a new opaque origin (which serializes to `"null"`).
+
+whatwg-url does not yet implement any encoding handling beyond UTF-8. That is, the _encoding override_ parameter does not exist in our API.
+
+## API
+
+### The `URL` and `URLSearchParams` classes
+
+The main API is provided by the [`URL`](https://url.spec.whatwg.org/#url-class) and [`URLSearchParams`](https://url.spec.whatwg.org/#interface-urlsearchparams) exports, which follows the spec's behavior in all ways (including e.g. `USVString` conversion). Most consumers of this library will want to use these.
+
+### Low-level URL Standard API
+
+The following methods are exported for use by places like jsdom that need to implement things like [`HTMLHyperlinkElementUtils`](https://html.spec.whatwg.org/#htmlhyperlinkelementutils). They mostly operate on or return an "internal URL" or ["URL record"](https://url.spec.whatwg.org/#concept-url) type.
+
+- [URL parser](https://url.spec.whatwg.org/#concept-url-parser): `parseURL(input, { baseURL })`
+- [Basic URL parser](https://url.spec.whatwg.org/#concept-basic-url-parser): `basicURLParse(input, { baseURL, url, stateOverride })`
+- [URL serializer](https://url.spec.whatwg.org/#concept-url-serializer): `serializeURL(urlRecord, excludeFragment)`
+- [Host serializer](https://url.spec.whatwg.org/#concept-host-serializer): `serializeHost(hostFromURLRecord)`
+- [URL path serializer](https://url.spec.whatwg.org/#url-path-serializer): `serializePath(urlRecord)`
+- [Serialize an integer](https://url.spec.whatwg.org/#serialize-an-integer): `serializeInteger(number)`
+- [Origin](https://url.spec.whatwg.org/#concept-url-origin) [serializer](https://html.spec.whatwg.org/multipage/origin.html#ascii-serialisation-of-an-origin): `serializeURLOrigin(urlRecord)`
+- [Set the username](https://url.spec.whatwg.org/#set-the-username): `setTheUsername(urlRecord, usernameString)`
+- [Set the password](https://url.spec.whatwg.org/#set-the-password): `setThePassword(urlRecord, passwordString)`
+- [Has an opaque path](https://url.spec.whatwg.org/#url-opaque-path): `hasAnOpaquePath(urlRecord)`
+- [Cannot have a username/password/port](https://url.spec.whatwg.org/#cannot-have-a-username-password-port): `cannotHaveAUsernamePasswordPort(urlRecord)`
+- [Percent decode bytes](https://url.spec.whatwg.org/#percent-decode): `percentDecodeBytes(uint8Array)`
+- [Percent decode a string](https://url.spec.whatwg.org/#string-percent-decode): `percentDecodeString(string)`
+
+The `stateOverride` parameter is one of the following strings:
+
+- [`"scheme start"`](https://url.spec.whatwg.org/#scheme-start-state)
+- [`"scheme"`](https://url.spec.whatwg.org/#scheme-state)
+- [`"no scheme"`](https://url.spec.whatwg.org/#no-scheme-state)
+- [`"special relative or authority"`](https://url.spec.whatwg.org/#special-relative-or-authority-state)
+- [`"path or authority"`](https://url.spec.whatwg.org/#path-or-authority-state)
+- [`"relative"`](https://url.spec.whatwg.org/#relative-state)
+- [`"relative slash"`](https://url.spec.whatwg.org/#relative-slash-state)
+- [`"special authority slashes"`](https://url.spec.whatwg.org/#special-authority-slashes-state)
+- [`"special authority ignore slashes"`](https://url.spec.whatwg.org/#special-authority-ignore-slashes-state)
+- [`"authority"`](https://url.spec.whatwg.org/#authority-state)
+- [`"host"`](https://url.spec.whatwg.org/#host-state)
+- [`"hostname"`](https://url.spec.whatwg.org/#hostname-state)
+- [`"port"`](https://url.spec.whatwg.org/#port-state)
+- [`"file"`](https://url.spec.whatwg.org/#file-state)
+- [`"file slash"`](https://url.spec.whatwg.org/#file-slash-state)
+- [`"file host"`](https://url.spec.whatwg.org/#file-host-state)
+- [`"path start"`](https://url.spec.whatwg.org/#path-start-state)
+- [`"path"`](https://url.spec.whatwg.org/#path-state)
+- [`"opaque path"`](https://url.spec.whatwg.org/#cannot-be-a-base-url-path-state)
+- [`"query"`](https://url.spec.whatwg.org/#query-state)
+- [`"fragment"`](https://url.spec.whatwg.org/#fragment-state)
+
+The URL record type has the following API:
+
+- [`scheme`](https://url.spec.whatwg.org/#concept-url-scheme)
+- [`username`](https://url.spec.whatwg.org/#concept-url-username)
+- [`password`](https://url.spec.whatwg.org/#concept-url-password)
+- [`host`](https://url.spec.whatwg.org/#concept-url-host)
+- [`port`](https://url.spec.whatwg.org/#concept-url-port)
+- [`path`](https://url.spec.whatwg.org/#concept-url-path) (as an array of strings, or a string)
+- [`query`](https://url.spec.whatwg.org/#concept-url-query)
+- [`fragment`](https://url.spec.whatwg.org/#concept-url-fragment)
+
+These properties should be treated with care, as in general changing them will cause the URL record to be in an inconsistent state until the appropriate invocation of `basicURLParse` is used to fix it up. You can see examples of this in the URL Standard, where there are many step sequences like "4. Set context object’s url’s fragment to the empty string. 5. Basic URL parse _input_ with context object’s url as _url_ and fragment state as _state override_." In between those two steps, a URL record is in an unusable state.
+
+The return value of "failure" in the spec is represented by `null`. That is, functions like `parseURL` and `basicURLParse` can return _either_ a URL record _or_ `null`.
+
+### `whatwg-url/webidl2js-wrapper` module
+
+This module exports the `URL` and `URLSearchParams` [interface wrappers API](https://github.com/jsdom/webidl2js#for-interfaces) generated by [webidl2js](https://github.com/jsdom/webidl2js).
+
+## Development instructions
+
+First, install [Node.js](https://nodejs.org/). Then, fetch the dependencies of whatwg-url, by running from this directory:
+
+    npm install
+
+To run tests:
+
+    npm test
+
+To generate a coverage report:
+
+    npm run coverage
+
+To build and run the live viewer:
+
+    npm run prepare
+    npm run build-live-viewer
+
+Serve the contents of the `live-viewer` directory using any web server.
+
+## Supporting whatwg-url
+
+The jsdom project (including whatwg-url) is a community-driven project maintained by a team of [volunteers](https://github.com/orgs/jsdom/people). You could support us by:
+
+- [Getting professional support for whatwg-url](https://tidelift.com/subscription/pkg/npm-whatwg-url?utm_source=npm-whatwg-url&utm_medium=referral&utm_campaign=readme) as part of a Tidelift subscription. Tidelift helps making open source sustainable for us while giving teams assurances for maintenance, licensing, and security.
+- Contributing directly to the project.
diff --git a/backend/node_modules/whatwg-url/index.js b/backend/node_modules/whatwg-url/index.js
new file mode 100644
index 0000000..c470e48
--- /dev/null
+++ b/backend/node_modules/whatwg-url/index.js
@@ -0,0 +1,27 @@
+"use strict";
+
+const { URL, URLSearchParams } = require("./webidl2js-wrapper");
+const urlStateMachine = require("./lib/url-state-machine");
+const percentEncoding = require("./lib/percent-encoding");
+
+const sharedGlobalObject = { Array, Object, Promise, String, TypeError };
+URL.install(sharedGlobalObject, ["Window"]);
+URLSearchParams.install(sharedGlobalObject, ["Window"]);
+
+exports.URL = sharedGlobalObject.URL;
+exports.URLSearchParams = sharedGlobalObject.URLSearchParams;
+
+exports.parseURL = urlStateMachine.parseURL;
+exports.basicURLParse = urlStateMachine.basicURLParse;
+exports.serializeURL = urlStateMachine.serializeURL;
+exports.serializePath = urlStateMachine.serializePath;
+exports.serializeHost = urlStateMachine.serializeHost;
+exports.serializeInteger = urlStateMachine.serializeInteger;
+exports.serializeURLOrigin = urlStateMachine.serializeURLOrigin;
+exports.setTheUsername = urlStateMachine.setTheUsername;
+exports.setThePassword = urlStateMachine.setThePassword;
+exports.cannotHaveAUsernamePasswordPort = urlStateMachine.cannotHaveAUsernamePasswordPort;
+exports.hasAnOpaquePath = urlStateMachine.hasAnOpaquePath;
+
+exports.percentDecodeString = percentEncoding.percentDecodeString;
+exports.percentDecodeBytes = percentEncoding.percentDecodeBytes;
diff --git a/backend/node_modules/whatwg-url/lib/Function.js b/backend/node_modules/whatwg-url/lib/Function.js
new file mode 100644
index 0000000..ea8712f
--- /dev/null
+++ b/backend/node_modules/whatwg-url/lib/Function.js
@@ -0,0 +1,42 @@
+"use strict";
+
+const conversions = require("webidl-conversions");
+const utils = require("./utils.js");
+
+exports.convert = (globalObject, value, { context = "The provided value" } = {}) => {
+  if (typeof value !== "function") {
+    throw new globalObject.TypeError(context + " is not a function");
+  }
+
+  function invokeTheCallbackFunction(...args) {
+    const thisArg = utils.tryWrapperForImpl(this);
+    let callResult;
+
+    for (let i = 0; i < args.length; i++) {
+      args[i] = utils.tryWrapperForImpl(args[i]);
+    }
+
+    callResult = Reflect.apply(value, thisArg, args);
+
+    callResult = conversions["any"](callResult, { context: context, globals: globalObject });
+
+    return callResult;
+  }
+
+  invokeTheCallbackFunction.construct = (...args) => {
+    for (let i = 0; i < args.length; i++) {
+      args[i] = utils.tryWrapperForImpl(args[i]);
+    }
+
+    let callResult = Reflect.construct(value, args);
+
+    callResult = conversions["any"](callResult, { context: context, globals: globalObject });
+
+    return callResult;
+  };
+
+  invokeTheCallbackFunction[utils.wrapperSymbol] = value;
+  invokeTheCallbackFunction.objectReference = value;
+
+  return invokeTheCallbackFunction;
+};
diff --git a/backend/node_modules/whatwg-url/lib/URL-impl.js b/backend/node_modules/whatwg-url/lib/URL-impl.js
new file mode 100644
index 0000000..f1138eb
--- /dev/null
+++ b/backend/node_modules/whatwg-url/lib/URL-impl.js
@@ -0,0 +1,251 @@
+"use strict";
+const usm = require("./url-state-machine");
+const urlencoded = require("./urlencoded");
+const URLSearchParams = require("./URLSearchParams");
+
+exports.implementation = class URLImpl {
+  // Unlike the spec, we duplicate some code between the constructor and canParse, because we want to give useful error
+  // messages in the constructor that distinguish between the different causes of failure.
+  constructor(globalObject, [url, base]) {
+    let parsedBase = null;
+    if (base !== undefined) {
+      parsedBase = usm.basicURLParse(base);
+      if (parsedBase === null) {
+        throw new TypeError(`Invalid base URL: ${base}`);
+      }
+    }
+
+    const parsedURL = usm.basicURLParse(url, { baseURL: parsedBase });
+    if (parsedURL === null) {
+      throw new TypeError(`Invalid URL: ${url}`);
+    }
+
+    const query = parsedURL.query !== null ? parsedURL.query : "";
+
+    this._url = parsedURL;
+
+    // We cannot invoke the "new URLSearchParams object" algorithm without going through the constructor, which strips
+    // question mark by default. Therefore the doNotStripQMark hack is used.
+    this._query = URLSearchParams.createImpl(globalObject, [query], { doNotStripQMark: true });
+    this._query._url = this;
+  }
+
+  static parse(globalObject, input, base) {
+    try {
+      return new URLImpl(globalObject, [input, base]);
+    } catch {
+      return null;
+    }
+  }
+
+  static canParse(url, base) {
+    let parsedBase = null;
+    if (base !== undefined) {
+      parsedBase = usm.basicURLParse(base);
+      if (parsedBase === null) {
+        return false;
+      }
+    }
+
+    const parsedURL = usm.basicURLParse(url, { baseURL: parsedBase });
+    if (parsedURL === null) {
+      return false;
+    }
+
+    return true;
+  }
+
+  get href() {
+    return usm.serializeURL(this._url);
+  }
+
+  set href(v) {
+    const parsedURL = usm.basicURLParse(v);
+    if (parsedURL === null) {
+      throw new TypeError(`Invalid URL: ${v}`);
+    }
+
+    this._url = parsedURL;
+
+    this._query._list.splice(0);
+    const { query } = parsedURL;
+    if (query !== null) {
+      this._query._list = urlencoded.parseUrlencodedString(query);
+    }
+  }
+
+  get origin() {
+    return usm.serializeURLOrigin(this._url);
+  }
+
+  get protocol() {
+    return `${this._url.scheme}:`;
+  }
+
+  set protocol(v) {
+    usm.basicURLParse(`${v}:`, { url: this._url, stateOverride: "scheme start" });
+  }
+
+  get username() {
+    return this._url.username;
+  }
+
+  set username(v) {
+    if (usm.cannotHaveAUsernamePasswordPort(this._url)) {
+      return;
+    }
+
+    usm.setTheUsername(this._url, v);
+  }
+
+  get password() {
+    return this._url.password;
+  }
+
+  set password(v) {
+    if (usm.cannotHaveAUsernamePasswordPort(this._url)) {
+      return;
+    }
+
+    usm.setThePassword(this._url, v);
+  }
+
+  get host() {
+    const url = this._url;
+
+    if (url.host === null) {
+      return "";
+    }
+
+    if (url.port === null) {
+      return usm.serializeHost(url.host);
+    }
+
+    return `${usm.serializeHost(url.host)}:${usm.serializeInteger(url.port)}`;
+  }
+
+  set host(v) {
+    if (usm.hasAnOpaquePath(this._url)) {
+      return;
+    }
+
+    usm.basicURLParse(v, { url: this._url, stateOverride: "host" });
+  }
+
+  get hostname() {
+    if (this._url.host === null) {
+      return "";
+    }
+
+    return usm.serializeHost(this._url.host);
+  }
+
+  set hostname(v) {
+    if (usm.hasAnOpaquePath(this._url)) {
+      return;
+    }
+
+    usm.basicURLParse(v, { url: this._url, stateOverride: "hostname" });
+  }
+
+  get port() {
+    if (this._url.port === null) {
+      return "";
+    }
+
+    return usm.serializeInteger(this._url.port);
+  }
+
+  set port(v) {
+    if (usm.cannotHaveAUsernamePasswordPort(this._url)) {
+      return;
+    }
+
+    if (v === "") {
+      this._url.port = null;
+    } else {
+      usm.basicURLParse(v, { url: this._url, stateOverride: "port" });
+    }
+  }
+
+  get pathname() {
+    return usm.serializePath(this._url);
+  }
+
+  set pathname(v) {
+    if (usm.hasAnOpaquePath(this._url)) {
+      return;
+    }
+
+    this._url.path = [];
+    usm.basicURLParse(v, { url: this._url, stateOverride: "path start" });
+  }
+
+  get search() {
+    if (this._url.query === null || this._url.query === "") {
+      return "";
+    }
+
+    return `?${this._url.query}`;
+  }
+
+  set search(v) {
+    const url = this._url;
+
+    if (v === "") {
+      url.query = null;
+      this._query._list = [];
+      this._potentiallyStripTrailingSpacesFromAnOpaquePath();
+      return;
+    }
+
+    const input = v[0] === "?" ? v.substring(1) : v;
+    url.query = "";
+    usm.basicURLParse(input, { url, stateOverride: "query" });
+    this._query._list = urlencoded.parseUrlencodedString(input);
+  }
+
+  get searchParams() {
+    return this._query;
+  }
+
+  get hash() {
+    if (this._url.fragment === null || this._url.fragment === "") {
+      return "";
+    }
+
+    return `#${this._url.fragment}`;
+  }
+
+  set hash(v) {
+    if (v === "") {
+      this._url.fragment = null;
+      this._potentiallyStripTrailingSpacesFromAnOpaquePath();
+      return;
+    }
+
+    const input = v[0] === "#" ? v.substring(1) : v;
+    this._url.fragment = "";
+    usm.basicURLParse(input, { url: this._url, stateOverride: "fragment" });
+  }
+
+  toJSON() {
+    return this.href;
+  }
+
+  _potentiallyStripTrailingSpacesFromAnOpaquePath() {
+    if (!usm.hasAnOpaquePath(this._url)) {
+      return;
+    }
+
+    if (this._url.fragment !== null) {
+      return;
+    }
+
+    if (this._url.query !== null) {
+      return;
+    }
+
+    this._url.path = this._url.path.replace(/\u0020+$/u, "");
+  }
+};
diff --git a/backend/node_modules/whatwg-url/lib/URL.js b/backend/node_modules/whatwg-url/lib/URL.js
new file mode 100644
index 0000000..53a47f2
--- /dev/null
+++ b/backend/node_modules/whatwg-url/lib/URL.js
@@ -0,0 +1,499 @@
+"use strict";
+
+const conversions = require("webidl-conversions");
+const utils = require("./utils.js");
+
+const implSymbol = utils.implSymbol;
+const ctorRegistrySymbol = utils.ctorRegistrySymbol;
+
+const interfaceName = "URL";
+
+exports.is = value => {
+  return utils.isObject(value) && utils.hasOwn(value, implSymbol) && value[implSymbol] instanceof Impl.implementation;
+};
+exports.isImpl = value => {
+  return utils.isObject(value) && value instanceof Impl.implementation;
+};
+exports.convert = (globalObject, value, { context = "The provided value" } = {}) => {
+  if (exports.is(value)) {
+    return utils.implForWrapper(value);
+  }
+  throw new globalObject.TypeError(`${context} is not of type 'URL'.`);
+};
+
+function makeWrapper(globalObject, newTarget) {
+  let proto;
+  if (newTarget !== undefined) {
+    proto = newTarget.prototype;
+  }
+
+  if (!utils.isObject(proto)) {
+    proto = globalObject[ctorRegistrySymbol]["URL"].prototype;
+  }
+
+  return Object.create(proto);
+}
+
+exports.create = (globalObject, constructorArgs, privateData) => {
+  const wrapper = makeWrapper(globalObject);
+  return exports.setup(wrapper, globalObject, constructorArgs, privateData);
+};
+
+exports.createImpl = (globalObject, constructorArgs, privateData) => {
+  const wrapper = exports.create(globalObject, constructorArgs, privateData);
+  return utils.implForWrapper(wrapper);
+};
+
+exports._internalSetup = (wrapper, globalObject) => {};
+
+exports.setup = (wrapper, globalObject, constructorArgs = [], privateData = {}) => {
+  privateData.wrapper = wrapper;
+
+  exports._internalSetup(wrapper, globalObject);
+  Object.defineProperty(wrapper, implSymbol, {
+    value: new Impl.implementation(globalObject, constructorArgs, privateData),
+    configurable: true
+  });
+
+  wrapper[implSymbol][utils.wrapperSymbol] = wrapper;
+  if (Impl.init) {
+    Impl.init(wrapper[implSymbol]);
+  }
+  return wrapper;
+};
+
+exports.new = (globalObject, newTarget) => {
+  const wrapper = makeWrapper(globalObject, newTarget);
+
+  exports._internalSetup(wrapper, globalObject);
+  Object.defineProperty(wrapper, implSymbol, {
+    value: Object.create(Impl.implementation.prototype),
+    configurable: true
+  });
+
+  wrapper[implSymbol][utils.wrapperSymbol] = wrapper;
+  if (Impl.init) {
+    Impl.init(wrapper[implSymbol]);
+  }
+  return wrapper[implSymbol];
+};
+
+const exposed = new Set(["Window", "Worker"]);
+
+exports.install = (globalObject, globalNames) => {
+  if (!globalNames.some(globalName => exposed.has(globalName))) {
+    return;
+  }
+
+  const ctorRegistry = utils.initCtorRegistry(globalObject);
+  class URL {
+    constructor(url) {
+      if (arguments.length < 1) {
+        throw new globalObject.TypeError(
+          `Failed to construct 'URL': 1 argument required, but only ${arguments.length} present.`
+        );
+      }
+      const args = [];
+      {
+        let curArg = arguments[0];
+        curArg = conversions["USVString"](curArg, {
+          context: "Failed to construct 'URL': parameter 1",
+          globals: globalObject
+        });
+        args.push(curArg);
+      }
+      {
+        let curArg = arguments[1];
+        if (curArg !== undefined) {
+          curArg = conversions["USVString"](curArg, {
+            context: "Failed to construct 'URL': parameter 2",
+            globals: globalObject
+          });
+        }
+        args.push(curArg);
+      }
+      return exports.setup(Object.create(new.target.prototype), globalObject, args);
+    }
+
+    toJSON() {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'toJSON' called on an object that is not a valid instance of URL.");
+      }
+
+      return esValue[implSymbol].toJSON();
+    }
+
+    get href() {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'get href' called on an object that is not a valid instance of URL.");
+      }
+
+      return esValue[implSymbol]["href"];
+    }
+
+    set href(V) {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'set href' called on an object that is not a valid instance of URL.");
+      }
+
+      V = conversions["USVString"](V, {
+        context: "Failed to set the 'href' property on 'URL': The provided value",
+        globals: globalObject
+      });
+
+      esValue[implSymbol]["href"] = V;
+    }
+
+    toString() {
+      const esValue = this;
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'toString' called on an object that is not a valid instance of URL.");
+      }
+
+      return esValue[implSymbol]["href"];
+    }
+
+    get origin() {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'get origin' called on an object that is not a valid instance of URL.");
+      }
+
+      return esValue[implSymbol]["origin"];
+    }
+
+    get protocol() {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'get protocol' called on an object that is not a valid instance of URL.");
+      }
+
+      return esValue[implSymbol]["protocol"];
+    }
+
+    set protocol(V) {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'set protocol' called on an object that is not a valid instance of URL.");
+      }
+
+      V = conversions["USVString"](V, {
+        context: "Failed to set the 'protocol' property on 'URL': The provided value",
+        globals: globalObject
+      });
+
+      esValue[implSymbol]["protocol"] = V;
+    }
+
+    get username() {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'get username' called on an object that is not a valid instance of URL.");
+      }
+
+      return esValue[implSymbol]["username"];
+    }
+
+    set username(V) {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'set username' called on an object that is not a valid instance of URL.");
+      }
+
+      V = conversions["USVString"](V, {
+        context: "Failed to set the 'username' property on 'URL': The provided value",
+        globals: globalObject
+      });
+
+      esValue[implSymbol]["username"] = V;
+    }
+
+    get password() {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'get password' called on an object that is not a valid instance of URL.");
+      }
+
+      return esValue[implSymbol]["password"];
+    }
+
+    set password(V) {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'set password' called on an object that is not a valid instance of URL.");
+      }
+
+      V = conversions["USVString"](V, {
+        context: "Failed to set the 'password' property on 'URL': The provided value",
+        globals: globalObject
+      });
+
+      esValue[implSymbol]["password"] = V;
+    }
+
+    get host() {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'get host' called on an object that is not a valid instance of URL.");
+      }
+
+      return esValue[implSymbol]["host"];
+    }
+
+    set host(V) {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'set host' called on an object that is not a valid instance of URL.");
+      }
+
+      V = conversions["USVString"](V, {
+        context: "Failed to set the 'host' property on 'URL': The provided value",
+        globals: globalObject
+      });
+
+      esValue[implSymbol]["host"] = V;
+    }
+
+    get hostname() {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'get hostname' called on an object that is not a valid instance of URL.");
+      }
+
+      return esValue[implSymbol]["hostname"];
+    }
+
+    set hostname(V) {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'set hostname' called on an object that is not a valid instance of URL.");
+      }
+
+      V = conversions["USVString"](V, {
+        context: "Failed to set the 'hostname' property on 'URL': The provided value",
+        globals: globalObject
+      });
+
+      esValue[implSymbol]["hostname"] = V;
+    }
+
+    get port() {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'get port' called on an object that is not a valid instance of URL.");
+      }
+
+      return esValue[implSymbol]["port"];
+    }
+
+    set port(V) {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'set port' called on an object that is not a valid instance of URL.");
+      }
+
+      V = conversions["USVString"](V, {
+        context: "Failed to set the 'port' property on 'URL': The provided value",
+        globals: globalObject
+      });
+
+      esValue[implSymbol]["port"] = V;
+    }
+
+    get pathname() {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'get pathname' called on an object that is not a valid instance of URL.");
+      }
+
+      return esValue[implSymbol]["pathname"];
+    }
+
+    set pathname(V) {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'set pathname' called on an object that is not a valid instance of URL.");
+      }
+
+      V = conversions["USVString"](V, {
+        context: "Failed to set the 'pathname' property on 'URL': The provided value",
+        globals: globalObject
+      });
+
+      esValue[implSymbol]["pathname"] = V;
+    }
+
+    get search() {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'get search' called on an object that is not a valid instance of URL.");
+      }
+
+      return esValue[implSymbol]["search"];
+    }
+
+    set search(V) {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'set search' called on an object that is not a valid instance of URL.");
+      }
+
+      V = conversions["USVString"](V, {
+        context: "Failed to set the 'search' property on 'URL': The provided value",
+        globals: globalObject
+      });
+
+      esValue[implSymbol]["search"] = V;
+    }
+
+    get searchParams() {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'get searchParams' called on an object that is not a valid instance of URL.");
+      }
+
+      return utils.getSameObject(this, "searchParams", () => {
+        return utils.tryWrapperForImpl(esValue[implSymbol]["searchParams"]);
+      });
+    }
+
+    get hash() {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'get hash' called on an object that is not a valid instance of URL.");
+      }
+
+      return esValue[implSymbol]["hash"];
+    }
+
+    set hash(V) {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'set hash' called on an object that is not a valid instance of URL.");
+      }
+
+      V = conversions["USVString"](V, {
+        context: "Failed to set the 'hash' property on 'URL': The provided value",
+        globals: globalObject
+      });
+
+      esValue[implSymbol]["hash"] = V;
+    }
+
+    static parse(url) {
+      if (arguments.length < 1) {
+        throw new globalObject.TypeError(
+          `Failed to execute 'parse' on 'URL': 1 argument required, but only ${arguments.length} present.`
+        );
+      }
+      const args = [];
+      {
+        let curArg = arguments[0];
+        curArg = conversions["USVString"](curArg, {
+          context: "Failed to execute 'parse' on 'URL': parameter 1",
+          globals: globalObject
+        });
+        args.push(curArg);
+      }
+      {
+        let curArg = arguments[1];
+        if (curArg !== undefined) {
+          curArg = conversions["USVString"](curArg, {
+            context: "Failed to execute 'parse' on 'URL': parameter 2",
+            globals: globalObject
+          });
+        }
+        args.push(curArg);
+      }
+      return utils.tryWrapperForImpl(Impl.implementation.parse(globalObject, ...args));
+    }
+
+    static canParse(url) {
+      if (arguments.length < 1) {
+        throw new globalObject.TypeError(
+          `Failed to execute 'canParse' on 'URL': 1 argument required, but only ${arguments.length} present.`
+        );
+      }
+      const args = [];
+      {
+        let curArg = arguments[0];
+        curArg = conversions["USVString"](curArg, {
+          context: "Failed to execute 'canParse' on 'URL': parameter 1",
+          globals: globalObject
+        });
+        args.push(curArg);
+      }
+      {
+        let curArg = arguments[1];
+        if (curArg !== undefined) {
+          curArg = conversions["USVString"](curArg, {
+            context: "Failed to execute 'canParse' on 'URL': parameter 2",
+            globals: globalObject
+          });
+        }
+        args.push(curArg);
+      }
+      return Impl.implementation.canParse(...args);
+    }
+  }
+  Object.defineProperties(URL.prototype, {
+    toJSON: { enumerable: true },
+    href: { enumerable: true },
+    toString: { enumerable: true },
+    origin: { enumerable: true },
+    protocol: { enumerable: true },
+    username: { enumerable: true },
+    password: { enumerable: true },
+    host: { enumerable: true },
+    hostname: { enumerable: true },
+    port: { enumerable: true },
+    pathname: { enumerable: true },
+    search: { enumerable: true },
+    searchParams: { enumerable: true },
+    hash: { enumerable: true },
+    [Symbol.toStringTag]: { value: "URL", configurable: true }
+  });
+  Object.defineProperties(URL, { parse: { enumerable: true }, canParse: { enumerable: true } });
+  ctorRegistry[interfaceName] = URL;
+
+  Object.defineProperty(globalObject, interfaceName, {
+    configurable: true,
+    writable: true,
+    value: URL
+  });
+
+  if (globalNames.includes("Window")) {
+    Object.defineProperty(globalObject, "webkitURL", {
+      configurable: true,
+      writable: true,
+      value: URL
+    });
+  }
+};
+
+const Impl = require("./URL-impl.js");
diff --git a/backend/node_modules/whatwg-url/lib/URLSearchParams-impl.js b/backend/node_modules/whatwg-url/lib/URLSearchParams-impl.js
new file mode 100644
index 0000000..934c4ff
--- /dev/null
+++ b/backend/node_modules/whatwg-url/lib/URLSearchParams-impl.js
@@ -0,0 +1,139 @@
+"use strict";
+const urlencoded = require("./urlencoded");
+
+exports.implementation = class URLSearchParamsImpl {
+  constructor(globalObject, constructorArgs, { doNotStripQMark = false }) {
+    let init = constructorArgs[0];
+    this._list = [];
+    this._url = null;
+
+    if (!doNotStripQMark && typeof init === "string" && init[0] === "?") {
+      init = init.slice(1);
+    }
+
+    if (Array.isArray(init)) {
+      for (const pair of init) {
+        if (pair.length !== 2) {
+          throw new TypeError("Failed to construct 'URLSearchParams': parameter 1 sequence's element does not " +
+                              "contain exactly two elements.");
+        }
+        this._list.push([pair[0], pair[1]]);
+      }
+    } else if (typeof init === "object" && Object.getPrototypeOf(init) === null) {
+      for (const name of Object.keys(init)) {
+        const value = init[name];
+        this._list.push([name, value]);
+      }
+    } else {
+      this._list = urlencoded.parseUrlencodedString(init);
+    }
+  }
+
+  _updateSteps() {
+    if (this._url !== null) {
+      let serializedQuery = urlencoded.serializeUrlencoded(this._list);
+      if (serializedQuery === "") {
+        serializedQuery = null;
+      }
+
+      this._url._url.query = serializedQuery;
+
+      if (serializedQuery === null) {
+        this._url._potentiallyStripTrailingSpacesFromAnOpaquePath();
+      }
+    }
+  }
+
+  get size() {
+    return this._list.length;
+  }
+
+  append(name, value) {
+    this._list.push([name, value]);
+    this._updateSteps();
+  }
+
+  delete(name, value) {
+    let i = 0;
+    while (i < this._list.length) {
+      if (this._list[i][0] === name && (value === undefined || this._list[i][1] === value)) {
+        this._list.splice(i, 1);
+      } else {
+        i++;
+      }
+    }
+    this._updateSteps();
+  }
+
+  get(name) {
+    for (const tuple of this._list) {
+      if (tuple[0] === name) {
+        return tuple[1];
+      }
+    }
+    return null;
+  }
+
+  getAll(name) {
+    const output = [];
+    for (const tuple of this._list) {
+      if (tuple[0] === name) {
+        output.push(tuple[1]);
+      }
+    }
+    return output;
+  }
+
+  has(name, value) {
+    for (const tuple of this._list) {
+      if (tuple[0] === name && (value === undefined || tuple[1] === value)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  set(name, value) {
+    let found = false;
+    let i = 0;
+    while (i < this._list.length) {
+      if (this._list[i][0] === name) {
+        if (found) {
+          this._list.splice(i, 1);
+        } else {
+          found = true;
+          this._list[i][1] = value;
+          i++;
+        }
+      } else {
+        i++;
+      }
+    }
+    if (!found) {
+      this._list.push([name, value]);
+    }
+    this._updateSteps();
+  }
+
+  sort() {
+    this._list.sort((a, b) => {
+      if (a[0] < b[0]) {
+        return -1;
+      }
+      if (a[0] > b[0]) {
+        return 1;
+      }
+      return 0;
+    });
+
+    this._updateSteps();
+  }
+
+  [Symbol.iterator]() {
+    return this._list[Symbol.iterator]();
+  }
+
+  toString() {
+    return urlencoded.serializeUrlencoded(this._list);
+  }
+};
diff --git a/backend/node_modules/whatwg-url/lib/URLSearchParams.js b/backend/node_modules/whatwg-url/lib/URLSearchParams.js
new file mode 100644
index 0000000..a55587f
--- /dev/null
+++ b/backend/node_modules/whatwg-url/lib/URLSearchParams.js
@@ -0,0 +1,505 @@
+"use strict";
+
+const conversions = require("webidl-conversions");
+const utils = require("./utils.js");
+
+const Function = require("./Function.js");
+const newObjectInRealm = utils.newObjectInRealm;
+const implSymbol = utils.implSymbol;
+const ctorRegistrySymbol = utils.ctorRegistrySymbol;
+
+const interfaceName = "URLSearchParams";
+
+exports.is = value => {
+  return utils.isObject(value) && utils.hasOwn(value, implSymbol) && value[implSymbol] instanceof Impl.implementation;
+};
+exports.isImpl = value => {
+  return utils.isObject(value) && value instanceof Impl.implementation;
+};
+exports.convert = (globalObject, value, { context = "The provided value" } = {}) => {
+  if (exports.is(value)) {
+    return utils.implForWrapper(value);
+  }
+  throw new globalObject.TypeError(`${context} is not of type 'URLSearchParams'.`);
+};
+
+exports.createDefaultIterator = (globalObject, target, kind) => {
+  const ctorRegistry = globalObject[ctorRegistrySymbol];
+  const iteratorPrototype = ctorRegistry["URLSearchParams Iterator"];
+  const iterator = Object.create(iteratorPrototype);
+  Object.defineProperty(iterator, utils.iterInternalSymbol, {
+    value: { target, kind, index: 0 },
+    configurable: true
+  });
+  return iterator;
+};
+
+function makeWrapper(globalObject, newTarget) {
+  let proto;
+  if (newTarget !== undefined) {
+    proto = newTarget.prototype;
+  }
+
+  if (!utils.isObject(proto)) {
+    proto = globalObject[ctorRegistrySymbol]["URLSearchParams"].prototype;
+  }
+
+  return Object.create(proto);
+}
+
+exports.create = (globalObject, constructorArgs, privateData) => {
+  const wrapper = makeWrapper(globalObject);
+  return exports.setup(wrapper, globalObject, constructorArgs, privateData);
+};
+
+exports.createImpl = (globalObject, constructorArgs, privateData) => {
+  const wrapper = exports.create(globalObject, constructorArgs, privateData);
+  return utils.implForWrapper(wrapper);
+};
+
+exports._internalSetup = (wrapper, globalObject) => {};
+
+exports.setup = (wrapper, globalObject, constructorArgs = [], privateData = {}) => {
+  privateData.wrapper = wrapper;
+
+  exports._internalSetup(wrapper, globalObject);
+  Object.defineProperty(wrapper, implSymbol, {
+    value: new Impl.implementation(globalObject, constructorArgs, privateData),
+    configurable: true
+  });
+
+  wrapper[implSymbol][utils.wrapperSymbol] = wrapper;
+  if (Impl.init) {
+    Impl.init(wrapper[implSymbol]);
+  }
+  return wrapper;
+};
+
+exports.new = (globalObject, newTarget) => {
+  const wrapper = makeWrapper(globalObject, newTarget);
+
+  exports._internalSetup(wrapper, globalObject);
+  Object.defineProperty(wrapper, implSymbol, {
+    value: Object.create(Impl.implementation.prototype),
+    configurable: true
+  });
+
+  wrapper[implSymbol][utils.wrapperSymbol] = wrapper;
+  if (Impl.init) {
+    Impl.init(wrapper[implSymbol]);
+  }
+  return wrapper[implSymbol];
+};
+
+const exposed = new Set(["Window", "Worker"]);
+
+exports.install = (globalObject, globalNames) => {
+  if (!globalNames.some(globalName => exposed.has(globalName))) {
+    return;
+  }
+
+  const ctorRegistry = utils.initCtorRegistry(globalObject);
+  class URLSearchParams {
+    constructor() {
+      const args = [];
+      {
+        let curArg = arguments[0];
+        if (curArg !== undefined) {
+          if (utils.isObject(curArg)) {
+            if (curArg[Symbol.iterator] !== undefined) {
+              if (!utils.isObject(curArg)) {
+                throw new globalObject.TypeError(
+                  "Failed to construct 'URLSearchParams': parameter 1" + " sequence" + " is not an iterable object."
+                );
+              } else {
+                const V = [];
+                const tmp = curArg;
+                for (let nextItem of tmp) {
+                  if (!utils.isObject(nextItem)) {
+                    throw new globalObject.TypeError(
+                      "Failed to construct 'URLSearchParams': parameter 1" +
+                        " sequence" +
+                        "'s element" +
+                        " is not an iterable object."
+                    );
+                  } else {
+                    const V = [];
+                    const tmp = nextItem;
+                    for (let nextItem of tmp) {
+                      nextItem = conversions["USVString"](nextItem, {
+                        context:
+                          "Failed to construct 'URLSearchParams': parameter 1" +
+                          " sequence" +
+                          "'s element" +
+                          "'s element",
+                        globals: globalObject
+                      });
+
+                      V.push(nextItem);
+                    }
+                    nextItem = V;
+                  }
+
+                  V.push(nextItem);
+                }
+                curArg = V;
+              }
+            } else {
+              if (!utils.isObject(curArg)) {
+                throw new globalObject.TypeError(
+                  "Failed to construct 'URLSearchParams': parameter 1" + " record" + " is not an object."
+                );
+              } else {
+                const result = Object.create(null);
+                for (const key of Reflect.ownKeys(curArg)) {
+                  const desc = Object.getOwnPropertyDescriptor(curArg, key);
+                  if (desc && desc.enumerable) {
+                    let typedKey = key;
+
+                    typedKey = conversions["USVString"](typedKey, {
+                      context: "Failed to construct 'URLSearchParams': parameter 1" + " record" + "'s key",
+                      globals: globalObject
+                    });
+
+                    let typedValue = curArg[key];
+
+                    typedValue = conversions["USVString"](typedValue, {
+                      context: "Failed to construct 'URLSearchParams': parameter 1" + " record" + "'s value",
+                      globals: globalObject
+                    });
+
+                    result[typedKey] = typedValue;
+                  }
+                }
+                curArg = result;
+              }
+            }
+          } else {
+            curArg = conversions["USVString"](curArg, {
+              context: "Failed to construct 'URLSearchParams': parameter 1",
+              globals: globalObject
+            });
+          }
+        } else {
+          curArg = "";
+        }
+        args.push(curArg);
+      }
+      return exports.setup(Object.create(new.target.prototype), globalObject, args);
+    }
+
+    append(name, value) {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError(
+          "'append' called on an object that is not a valid instance of URLSearchParams."
+        );
+      }
+
+      if (arguments.length < 2) {
+        throw new globalObject.TypeError(
+          `Failed to execute 'append' on 'URLSearchParams': 2 arguments required, but only ${arguments.length} present.`
+        );
+      }
+      const args = [];
+      {
+        let curArg = arguments[0];
+        curArg = conversions["USVString"](curArg, {
+          context: "Failed to execute 'append' on 'URLSearchParams': parameter 1",
+          globals: globalObject
+        });
+        args.push(curArg);
+      }
+      {
+        let curArg = arguments[1];
+        curArg = conversions["USVString"](curArg, {
+          context: "Failed to execute 'append' on 'URLSearchParams': parameter 2",
+          globals: globalObject
+        });
+        args.push(curArg);
+      }
+      return utils.tryWrapperForImpl(esValue[implSymbol].append(...args));
+    }
+
+    delete(name) {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError(
+          "'delete' called on an object that is not a valid instance of URLSearchParams."
+        );
+      }
+
+      if (arguments.length < 1) {
+        throw new globalObject.TypeError(
+          `Failed to execute 'delete' on 'URLSearchParams': 1 argument required, but only ${arguments.length} present.`
+        );
+      }
+      const args = [];
+      {
+        let curArg = arguments[0];
+        curArg = conversions["USVString"](curArg, {
+          context: "Failed to execute 'delete' on 'URLSearchParams': parameter 1",
+          globals: globalObject
+        });
+        args.push(curArg);
+      }
+      {
+        let curArg = arguments[1];
+        if (curArg !== undefined) {
+          curArg = conversions["USVString"](curArg, {
+            context: "Failed to execute 'delete' on 'URLSearchParams': parameter 2",
+            globals: globalObject
+          });
+        }
+        args.push(curArg);
+      }
+      return utils.tryWrapperForImpl(esValue[implSymbol].delete(...args));
+    }
+
+    get(name) {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'get' called on an object that is not a valid instance of URLSearchParams.");
+      }
+
+      if (arguments.length < 1) {
+        throw new globalObject.TypeError(
+          `Failed to execute 'get' on 'URLSearchParams': 1 argument required, but only ${arguments.length} present.`
+        );
+      }
+      const args = [];
+      {
+        let curArg = arguments[0];
+        curArg = conversions["USVString"](curArg, {
+          context: "Failed to execute 'get' on 'URLSearchParams': parameter 1",
+          globals: globalObject
+        });
+        args.push(curArg);
+      }
+      return esValue[implSymbol].get(...args);
+    }
+
+    getAll(name) {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError(
+          "'getAll' called on an object that is not a valid instance of URLSearchParams."
+        );
+      }
+
+      if (arguments.length < 1) {
+        throw new globalObject.TypeError(
+          `Failed to execute 'getAll' on 'URLSearchParams': 1 argument required, but only ${arguments.length} present.`
+        );
+      }
+      const args = [];
+      {
+        let curArg = arguments[0];
+        curArg = conversions["USVString"](curArg, {
+          context: "Failed to execute 'getAll' on 'URLSearchParams': parameter 1",
+          globals: globalObject
+        });
+        args.push(curArg);
+      }
+      return utils.tryWrapperForImpl(esValue[implSymbol].getAll(...args));
+    }
+
+    has(name) {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'has' called on an object that is not a valid instance of URLSearchParams.");
+      }
+
+      if (arguments.length < 1) {
+        throw new globalObject.TypeError(
+          `Failed to execute 'has' on 'URLSearchParams': 1 argument required, but only ${arguments.length} present.`
+        );
+      }
+      const args = [];
+      {
+        let curArg = arguments[0];
+        curArg = conversions["USVString"](curArg, {
+          context: "Failed to execute 'has' on 'URLSearchParams': parameter 1",
+          globals: globalObject
+        });
+        args.push(curArg);
+      }
+      {
+        let curArg = arguments[1];
+        if (curArg !== undefined) {
+          curArg = conversions["USVString"](curArg, {
+            context: "Failed to execute 'has' on 'URLSearchParams': parameter 2",
+            globals: globalObject
+          });
+        }
+        args.push(curArg);
+      }
+      return esValue[implSymbol].has(...args);
+    }
+
+    set(name, value) {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'set' called on an object that is not a valid instance of URLSearchParams.");
+      }
+
+      if (arguments.length < 2) {
+        throw new globalObject.TypeError(
+          `Failed to execute 'set' on 'URLSearchParams': 2 arguments required, but only ${arguments.length} present.`
+        );
+      }
+      const args = [];
+      {
+        let curArg = arguments[0];
+        curArg = conversions["USVString"](curArg, {
+          context: "Failed to execute 'set' on 'URLSearchParams': parameter 1",
+          globals: globalObject
+        });
+        args.push(curArg);
+      }
+      {
+        let curArg = arguments[1];
+        curArg = conversions["USVString"](curArg, {
+          context: "Failed to execute 'set' on 'URLSearchParams': parameter 2",
+          globals: globalObject
+        });
+        args.push(curArg);
+      }
+      return utils.tryWrapperForImpl(esValue[implSymbol].set(...args));
+    }
+
+    sort() {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError("'sort' called on an object that is not a valid instance of URLSearchParams.");
+      }
+
+      return utils.tryWrapperForImpl(esValue[implSymbol].sort());
+    }
+
+    toString() {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError(
+          "'toString' called on an object that is not a valid instance of URLSearchParams."
+        );
+      }
+
+      return esValue[implSymbol].toString();
+    }
+
+    keys() {
+      if (!exports.is(this)) {
+        throw new globalObject.TypeError("'keys' called on an object that is not a valid instance of URLSearchParams.");
+      }
+      return exports.createDefaultIterator(globalObject, this, "key");
+    }
+
+    values() {
+      if (!exports.is(this)) {
+        throw new globalObject.TypeError(
+          "'values' called on an object that is not a valid instance of URLSearchParams."
+        );
+      }
+      return exports.createDefaultIterator(globalObject, this, "value");
+    }
+
+    entries() {
+      if (!exports.is(this)) {
+        throw new globalObject.TypeError(
+          "'entries' called on an object that is not a valid instance of URLSearchParams."
+        );
+      }
+      return exports.createDefaultIterator(globalObject, this, "key+value");
+    }
+
+    forEach(callback) {
+      if (!exports.is(this)) {
+        throw new globalObject.TypeError(
+          "'forEach' called on an object that is not a valid instance of URLSearchParams."
+        );
+      }
+      if (arguments.length < 1) {
+        throw new globalObject.TypeError(
+          "Failed to execute 'forEach' on 'iterable': 1 argument required, but only 0 present."
+        );
+      }
+      callback = Function.convert(globalObject, callback, {
+        context: "Failed to execute 'forEach' on 'iterable': The callback provided as parameter 1"
+      });
+      const thisArg = arguments[1];
+      let pairs = Array.from(this[implSymbol]);
+      let i = 0;
+      while (i < pairs.length) {
+        const [key, value] = pairs[i].map(utils.tryWrapperForImpl);
+        callback.call(thisArg, value, key, this);
+        pairs = Array.from(this[implSymbol]);
+        i++;
+      }
+    }
+
+    get size() {
+      const esValue = this !== null && this !== undefined ? this : globalObject;
+
+      if (!exports.is(esValue)) {
+        throw new globalObject.TypeError(
+          "'get size' called on an object that is not a valid instance of URLSearchParams."
+        );
+      }
+
+      return esValue[implSymbol]["size"];
+    }
+  }
+  Object.defineProperties(URLSearchParams.prototype, {
+    append: { enumerable: true },
+    delete: { enumerable: true },
+    get: { enumerable: true },
+    getAll: { enumerable: true },
+    has: { enumerable: true },
+    set: { enumerable: true },
+    sort: { enumerable: true },
+    toString: { enumerable: true },
+    keys: { enumerable: true },
+    values: { enumerable: true },
+    entries: { enumerable: true },
+    forEach: { enumerable: true },
+    size: { enumerable: true },
+    [Symbol.toStringTag]: { value: "URLSearchParams", configurable: true },
+    [Symbol.iterator]: { value: URLSearchParams.prototype.entries, configurable: true, writable: true }
+  });
+  ctorRegistry[interfaceName] = URLSearchParams;
+
+  ctorRegistry["URLSearchParams Iterator"] = Object.create(ctorRegistry["%IteratorPrototype%"], {
+    [Symbol.toStringTag]: {
+      configurable: true,
+      value: "URLSearchParams Iterator"
+    }
+  });
+  utils.define(ctorRegistry["URLSearchParams Iterator"], {
+    next() {
+      const internal = this && this[utils.iterInternalSymbol];
+      if (!internal) {
+        throw new globalObject.TypeError("next() called on a value that is not a URLSearchParams iterator object");
+      }
+
+      const { target, kind, index } = internal;
+      const values = Array.from(target[implSymbol]);
+      const len = values.length;
+      if (index >= len) {
+        return newObjectInRealm(globalObject, { value: undefined, done: true });
+      }
+
+      const pair = values[index];
+      internal.index = index + 1;
+      return newObjectInRealm(globalObject, utils.iteratorResult(pair.map(utils.tryWrapperForImpl), kind));
+    }
+  });
+
+  Object.defineProperty(globalObject, interfaceName, {
+    configurable: true,
+    writable: true,
+    value: URLSearchParams
+  });
+};
+
+const Impl = require("./URLSearchParams-impl.js");
diff --git a/backend/node_modules/whatwg-url/lib/VoidFunction.js b/backend/node_modules/whatwg-url/lib/VoidFunction.js
new file mode 100644
index 0000000..9a00672
--- /dev/null
+++ b/backend/node_modules/whatwg-url/lib/VoidFunction.js
@@ -0,0 +1,26 @@
+"use strict";
+
+const conversions = require("webidl-conversions");
+const utils = require("./utils.js");
+
+exports.convert = (globalObject, value, { context = "The provided value" } = {}) => {
+  if (typeof value !== "function") {
+    throw new globalObject.TypeError(context + " is not a function");
+  }
+
+  function invokeTheCallbackFunction() {
+    const thisArg = utils.tryWrapperForImpl(this);
+    let callResult;
+
+    callResult = Reflect.apply(value, thisArg, []);
+  }
+
+  invokeTheCallbackFunction.construct = () => {
+    let callResult = Reflect.construct(value, []);
+  };
+
+  invokeTheCallbackFunction[utils.wrapperSymbol] = value;
+  invokeTheCallbackFunction.objectReference = value;
+
+  return invokeTheCallbackFunction;
+};
diff --git a/backend/node_modules/whatwg-url/lib/encoding.js b/backend/node_modules/whatwg-url/lib/encoding.js
new file mode 100644
index 0000000..cb66b8f
--- /dev/null
+++ b/backend/node_modules/whatwg-url/lib/encoding.js
@@ -0,0 +1,16 @@
+"use strict";
+const utf8Encoder = new TextEncoder();
+const utf8Decoder = new TextDecoder("utf-8", { ignoreBOM: true });
+
+function utf8Encode(string) {
+  return utf8Encoder.encode(string);
+}
+
+function utf8DecodeWithoutBOM(bytes) {
+  return utf8Decoder.decode(bytes);
+}
+
+module.exports = {
+  utf8Encode,
+  utf8DecodeWithoutBOM
+};
diff --git a/backend/node_modules/whatwg-url/lib/infra.js b/backend/node_modules/whatwg-url/lib/infra.js
new file mode 100644
index 0000000..4a984a3
--- /dev/null
+++ b/backend/node_modules/whatwg-url/lib/infra.js
@@ -0,0 +1,26 @@
+"use strict";
+
+// Note that we take code points as JS numbers, not JS strings.
+
+function isASCIIDigit(c) {
+  return c >= 0x30 && c <= 0x39;
+}
+
+function isASCIIAlpha(c) {
+  return (c >= 0x41 && c <= 0x5A) || (c >= 0x61 && c <= 0x7A);
+}
+
+function isASCIIAlphanumeric(c) {
+  return isASCIIAlpha(c) || isASCIIDigit(c);
+}
+
+function isASCIIHex(c) {
+  return isASCIIDigit(c) || (c >= 0x41 && c <= 0x46) || (c >= 0x61 && c <= 0x66);
+}
+
+module.exports = {
+  isASCIIDigit,
+  isASCIIAlpha,
+  isASCIIAlphanumeric,
+  isASCIIHex
+};
diff --git a/backend/node_modules/whatwg-url/lib/percent-encoding.js b/backend/node_modules/whatwg-url/lib/percent-encoding.js
new file mode 100644
index 0000000..f830867
--- /dev/null
+++ b/backend/node_modules/whatwg-url/lib/percent-encoding.js
@@ -0,0 +1,142 @@
+"use strict";
+const { isASCIIHex } = require("./infra");
+const { utf8Encode } = require("./encoding");
+
+function p(char) {
+  return char.codePointAt(0);
+}
+
+// https://url.spec.whatwg.org/#percent-encode
+function percentEncode(c) {
+  let hex = c.toString(16).toUpperCase();
+  if (hex.length === 1) {
+    hex = `0${hex}`;
+  }
+
+  return `%${hex}`;
+}
+
+// https://url.spec.whatwg.org/#percent-decode
+function percentDecodeBytes(input) {
+  const output = new Uint8Array(input.byteLength);
+  let outputIndex = 0;
+  for (let i = 0; i < input.byteLength; ++i) {
+    const byte = input[i];
+    if (byte !== 0x25) {
+      output[outputIndex++] = byte;
+    } else if (byte === 0x25 && (!isASCIIHex(input[i + 1]) || !isASCIIHex(input[i + 2]))) {
+      output[outputIndex++] = byte;
+    } else {
+      const bytePoint = parseInt(String.fromCodePoint(input[i + 1], input[i + 2]), 16);
+      output[outputIndex++] = bytePoint;
+      i += 2;
+    }
+  }
+
+  return output.slice(0, outputIndex);
+}
+
+// https://url.spec.whatwg.org/#string-percent-decode
+function percentDecodeString(input) {
+  const bytes = utf8Encode(input);
+  return percentDecodeBytes(bytes);
+}
+
+// https://url.spec.whatwg.org/#c0-control-percent-encode-set
+function isC0ControlPercentEncode(c) {
+  return c <= 0x1F || c > 0x7E;
+}
+
+// https://url.spec.whatwg.org/#fragment-percent-encode-set
+const extraFragmentPercentEncodeSet = new Set([p(" "), p("\""), p("<"), p(">"), p("`")]);
+function isFragmentPercentEncode(c) {
+  return isC0ControlPercentEncode(c) || extraFragmentPercentEncodeSet.has(c);
+}
+
+// https://url.spec.whatwg.org/#query-percent-encode-set
+const extraQueryPercentEncodeSet = new Set([p(" "), p("\""), p("#"), p("<"), p(">")]);
+function isQueryPercentEncode(c) {
+  return isC0ControlPercentEncode(c) || extraQueryPercentEncodeSet.has(c);
+}
+
+// https://url.spec.whatwg.org/#special-query-percent-encode-set
+function isSpecialQueryPercentEncode(c) {
+  return isQueryPercentEncode(c) || c === p("'");
+}
+
+// https://url.spec.whatwg.org/#path-percent-encode-set
+const extraPathPercentEncodeSet = new Set([p("?"), p("`"), p("{"), p("}")]);
+function isPathPercentEncode(c) {
+  return isQueryPercentEncode(c) || extraPathPercentEncodeSet.has(c);
+}
+
+// https://url.spec.whatwg.org/#userinfo-percent-encode-set
+const extraUserinfoPercentEncodeSet =
+  new Set([p("/"), p(":"), p(";"), p("="), p("@"), p("["), p("\\"), p("]"), p("^"), p("|")]);
+function isUserinfoPercentEncode(c) {
+  return isPathPercentEncode(c) || extraUserinfoPercentEncodeSet.has(c);
+}
+
+// https://url.spec.whatwg.org/#component-percent-encode-set
+const extraComponentPercentEncodeSet = new Set([p("$"), p("%"), p("&"), p("+"), p(",")]);
+function isComponentPercentEncode(c) {
+  return isUserinfoPercentEncode(c) || extraComponentPercentEncodeSet.has(c);
+}
+
+// https://url.spec.whatwg.org/#application-x-www-form-urlencoded-percent-encode-set
+const extraURLEncodedPercentEncodeSet = new Set([p("!"), p("'"), p("("), p(")"), p("~")]);
+function isURLEncodedPercentEncode(c) {
+  return isComponentPercentEncode(c) || extraURLEncodedPercentEncodeSet.has(c);
+}
+
+// https://url.spec.whatwg.org/#code-point-percent-encode-after-encoding
+// https://url.spec.whatwg.org/#utf-8-percent-encode
+// Assuming encoding is always utf-8 allows us to trim one of the logic branches. TODO: support encoding.
+// The "-Internal" variant here has code points as JS strings. The external version used by other files has code points
+// as JS numbers, like the rest of the codebase.
+function utf8PercentEncodeCodePointInternal(codePoint, percentEncodePredicate) {
+  const bytes = utf8Encode(codePoint);
+  let output = "";
+  for (const byte of bytes) {
+    // Our percentEncodePredicate operates on bytes, not code points, so this is slightly different from the spec.
+    if (!percentEncodePredicate(byte)) {
+      output += String.fromCharCode(byte);
+    } else {
+      output += percentEncode(byte);
+    }
+  }
+
+  return output;
+}
+
+function utf8PercentEncodeCodePoint(codePoint, percentEncodePredicate) {
+  return utf8PercentEncodeCodePointInternal(String.fromCodePoint(codePoint), percentEncodePredicate);
+}
+
+// https://url.spec.whatwg.org/#string-percent-encode-after-encoding
+// https://url.spec.whatwg.org/#string-utf-8-percent-encode
+function utf8PercentEncodeString(input, percentEncodePredicate, spaceAsPlus = false) {
+  let output = "";
+  for (const codePoint of input) {
+    if (spaceAsPlus && codePoint === " ") {
+      output += "+";
+    } else {
+      output += utf8PercentEncodeCodePointInternal(codePoint, percentEncodePredicate);
+    }
+  }
+  return output;
+}
+
+module.exports = {
+  isC0ControlPercentEncode,
+  isFragmentPercentEncode,
+  isQueryPercentEncode,
+  isSpecialQueryPercentEncode,
+  isPathPercentEncode,
+  isUserinfoPercentEncode,
+  isURLEncodedPercentEncode,
+  percentDecodeString,
+  percentDecodeBytes,
+  utf8PercentEncodeString,
+  utf8PercentEncodeCodePoint
+};
diff --git a/backend/node_modules/whatwg-url/lib/url-state-machine.js b/backend/node_modules/whatwg-url/lib/url-state-machine.js
new file mode 100644
index 0000000..4335573
--- /dev/null
+++ b/backend/node_modules/whatwg-url/lib/url-state-machine.js
@@ -0,0 +1,1246 @@
+"use strict";
+const tr46 = require("tr46");
+
+const infra = require("./infra");
+const { utf8DecodeWithoutBOM } = require("./encoding");
+const { percentDecodeString, utf8PercentEncodeCodePoint, utf8PercentEncodeString, isC0ControlPercentEncode,
+  isFragmentPercentEncode, isQueryPercentEncode, isSpecialQueryPercentEncode, isPathPercentEncode,
+  isUserinfoPercentEncode } = require("./percent-encoding");
+
+function p(char) {
+  return char.codePointAt(0);
+}
+
+const specialSchemes = {
+  ftp: 21,
+  file: null,
+  http: 80,
+  https: 443,
+  ws: 80,
+  wss: 443
+};
+
+const failure = Symbol("failure");
+
+function countSymbols(str) {
+  return [...str].length;
+}
+
+function at(input, idx) {
+  const c = input[idx];
+  return isNaN(c) ? undefined : String.fromCodePoint(c);
+}
+
+function isSingleDot(buffer) {
+  return buffer === "." || buffer.toLowerCase() === "%2e";
+}
+
+function isDoubleDot(buffer) {
+  buffer = buffer.toLowerCase();
+  return buffer === ".." || buffer === "%2e." || buffer === ".%2e" || buffer === "%2e%2e";
+}
+
+function isWindowsDriveLetterCodePoints(cp1, cp2) {
+  return infra.isASCIIAlpha(cp1) && (cp2 === p(":") || cp2 === p("|"));
+}
+
+function isWindowsDriveLetterString(string) {
+  return string.length === 2 && infra.isASCIIAlpha(string.codePointAt(0)) && (string[1] === ":" || string[1] === "|");
+}
+
+function isNormalizedWindowsDriveLetterString(string) {
+  return string.length === 2 && infra.isASCIIAlpha(string.codePointAt(0)) && string[1] === ":";
+}
+
+function containsForbiddenHostCodePoint(string) {
+  return string.search(/\u0000|\u0009|\u000A|\u000D|\u0020|#|\/|:|<|>|\?|@|\[|\\|\]|\^|\|/u) !== -1;
+}
+
+function containsForbiddenDomainCodePoint(string) {
+  return containsForbiddenHostCodePoint(string) || string.search(/[\u0000-\u001F]|%|\u007F/u) !== -1;
+}
+
+function isSpecialScheme(scheme) {
+  return specialSchemes[scheme] !== undefined;
+}
+
+function isSpecial(url) {
+  return isSpecialScheme(url.scheme);
+}
+
+function isNotSpecial(url) {
+  return !isSpecialScheme(url.scheme);
+}
+
+function defaultPort(scheme) {
+  return specialSchemes[scheme];
+}
+
+function parseIPv4Number(input) {
+  if (input === "") {
+    return failure;
+  }
+
+  let R = 10;
+
+  if (input.length >= 2 && input.charAt(0) === "0" && input.charAt(1).toLowerCase() === "x") {
+    input = input.substring(2);
+    R = 16;
+  } else if (input.length >= 2 && input.charAt(0) === "0") {
+    input = input.substring(1);
+    R = 8;
+  }
+
+  if (input === "") {
+    return 0;
+  }
+
+  let regex = /[^0-7]/u;
+  if (R === 10) {
+    regex = /[^0-9]/u;
+  }
+  if (R === 16) {
+    regex = /[^0-9A-Fa-f]/u;
+  }
+
+  if (regex.test(input)) {
+    return failure;
+  }
+
+  return parseInt(input, R);
+}
+
+function parseIPv4(input) {
+  const parts = input.split(".");
+  if (parts[parts.length - 1] === "") {
+    if (parts.length > 1) {
+      parts.pop();
+    }
+  }
+
+  if (parts.length > 4) {
+    return failure;
+  }
+
+  const numbers = [];
+  for (const part of parts) {
+    const n = parseIPv4Number(part);
+    if (n === failure) {
+      return failure;
+    }
+
+    numbers.push(n);
+  }
+
+  for (let i = 0; i < numbers.length - 1; ++i) {
+    if (numbers[i] > 255) {
+      return failure;
+    }
+  }
+  if (numbers[numbers.length - 1] >= 256 ** (5 - numbers.length)) {
+    return failure;
+  }
+
+  let ipv4 = numbers.pop();
+  let counter = 0;
+
+  for (const n of numbers) {
+    ipv4 += n * 256 ** (3 - counter);
+    ++counter;
+  }
+
+  return ipv4;
+}
+
+function serializeIPv4(address) {
+  let output = "";
+  let n = address;
+
+  for (let i = 1; i <= 4; ++i) {
+    output = String(n % 256) + output;
+    if (i !== 4) {
+      output = `.${output}`;
+    }
+    n = Math.floor(n / 256);
+  }
+
+  return output;
+}
+
+function parseIPv6(input) {
+  const address = [0, 0, 0, 0, 0, 0, 0, 0];
+  let pieceIndex = 0;
+  let compress = null;
+  let pointer = 0;
+
+  input = Array.from(input, c => c.codePointAt(0));
+
+  if (input[pointer] === p(":")) {
+    if (input[pointer + 1] !== p(":")) {
+      return failure;
+    }
+
+    pointer += 2;
+    ++pieceIndex;
+    compress = pieceIndex;
+  }
+
+  while (pointer < input.length) {
+    if (pieceIndex === 8) {
+      return failure;
+    }
+
+    if (input[pointer] === p(":")) {
+      if (compress !== null) {
+        return failure;
+      }
+      ++pointer;
+      ++pieceIndex;
+      compress = pieceIndex;
+      continue;
+    }
+
+    let value = 0;
+    let length = 0;
+
+    while (length < 4 && infra.isASCIIHex(input[pointer])) {
+      value = value * 0x10 + parseInt(at(input, pointer), 16);
+      ++pointer;
+      ++length;
+    }
+
+    if (input[pointer] === p(".")) {
+      if (length === 0) {
+        return failure;
+      }
+
+      pointer -= length;
+
+      if (pieceIndex > 6) {
+        return failure;
+      }
+
+      let numbersSeen = 0;
+
+      while (input[pointer] !== undefined) {
+        let ipv4Piece = null;
+
+        if (numbersSeen > 0) {
+          if (input[pointer] === p(".") && numbersSeen < 4) {
+            ++pointer;
+          } else {
+            return failure;
+          }
+        }
+
+        if (!infra.isASCIIDigit(input[pointer])) {
+          return failure;
+        }
+
+        while (infra.isASCIIDigit(input[pointer])) {
+          const number = parseInt(at(input, pointer));
+          if (ipv4Piece === null) {
+            ipv4Piece = number;
+          } else if (ipv4Piece === 0) {
+            return failure;
+          } else {
+            ipv4Piece = ipv4Piece * 10 + number;
+          }
+          if (ipv4Piece > 255) {
+            return failure;
+          }
+          ++pointer;
+        }
+
+        address[pieceIndex] = address[pieceIndex] * 0x100 + ipv4Piece;
+
+        ++numbersSeen;
+
+        if (numbersSeen === 2 || numbersSeen === 4) {
+          ++pieceIndex;
+        }
+      }
+
+      if (numbersSeen !== 4) {
+        return failure;
+      }
+
+      break;
+    } else if (input[pointer] === p(":")) {
+      ++pointer;
+      if (input[pointer] === undefined) {
+        return failure;
+      }
+    } else if (input[pointer] !== undefined) {
+      return failure;
+    }
+
+    address[pieceIndex] = value;
+    ++pieceIndex;
+  }
+
+  if (compress !== null) {
+    let swaps = pieceIndex - compress;
+    pieceIndex = 7;
+    while (pieceIndex !== 0 && swaps > 0) {
+      const temp = address[compress + swaps - 1];
+      address[compress + swaps - 1] = address[pieceIndex];
+      address[pieceIndex] = temp;
+      --pieceIndex;
+      --swaps;
+    }
+  } else if (compress === null && pieceIndex !== 8) {
+    return failure;
+  }
+
+  return address;
+}
+
+function serializeIPv6(address) {
+  let output = "";
+  const compress = findTheIPv6AddressCompressedPieceIndex(address);
+  let ignore0 = false;
+
+  for (let pieceIndex = 0; pieceIndex <= 7; ++pieceIndex) {
+    if (ignore0 && address[pieceIndex] === 0) {
+      continue;
+    } else if (ignore0) {
+      ignore0 = false;
+    }
+
+    if (compress === pieceIndex) {
+      const separator = pieceIndex === 0 ? "::" : ":";
+      output += separator;
+      ignore0 = true;
+      continue;
+    }
+
+    output += address[pieceIndex].toString(16);
+
+    if (pieceIndex !== 7) {
+      output += ":";
+    }
+  }
+
+  return output;
+}
+
+function parseHost(input, isOpaque = false) {
+  if (input[0] === "[") {
+    if (input[input.length - 1] !== "]") {
+      return failure;
+    }
+
+    return parseIPv6(input.substring(1, input.length - 1));
+  }
+
+  if (isOpaque) {
+    return parseOpaqueHost(input);
+  }
+
+  const domain = utf8DecodeWithoutBOM(percentDecodeString(input));
+  const asciiDomain = domainToASCII(domain);
+  if (asciiDomain === failure) {
+    return failure;
+  }
+
+  if (containsForbiddenDomainCodePoint(asciiDomain)) {
+    return failure;
+  }
+
+  if (endsInANumber(asciiDomain)) {
+    return parseIPv4(asciiDomain);
+  }
+
+  return asciiDomain;
+}
+
+function endsInANumber(input) {
+  const parts = input.split(".");
+  if (parts[parts.length - 1] === "") {
+    if (parts.length === 1) {
+      return false;
+    }
+    parts.pop();
+  }
+
+  const last = parts[parts.length - 1];
+  if (parseIPv4Number(last) !== failure) {
+    return true;
+  }
+
+  if (/^[0-9]+$/u.test(last)) {
+    return true;
+  }
+
+  return false;
+}
+
+function parseOpaqueHost(input) {
+  if (containsForbiddenHostCodePoint(input)) {
+    return failure;
+  }
+
+  return utf8PercentEncodeString(input, isC0ControlPercentEncode);
+}
+
+function findTheIPv6AddressCompressedPieceIndex(address) {
+  let longestIndex = null;
+  let longestSize = 1; // only find elements > 1
+  let foundIndex = null;
+  let foundSize = 0;
+
+  for (let pieceIndex = 0; pieceIndex < address.length; ++pieceIndex) {
+    if (address[pieceIndex] !== 0) {
+      if (foundSize > longestSize) {
+        longestIndex = foundIndex;
+        longestSize = foundSize;
+      }
+
+      foundIndex = null;
+      foundSize = 0;
+    } else {
+      if (foundIndex === null) {
+        foundIndex = pieceIndex;
+      }
+      ++foundSize;
+    }
+  }
+
+  if (foundSize > longestSize) {
+    return foundIndex;
+  }
+
+  return longestIndex;
+}
+
+function serializeHost(host) {
+  if (typeof host === "number") {
+    return serializeIPv4(host);
+  }
+
+  // IPv6 serializer
+  if (host instanceof Array) {
+    return `[${serializeIPv6(host)}]`;
+  }
+
+  return host;
+}
+
+function domainToASCII(domain, beStrict = false) {
+  const result = tr46.toASCII(domain, {
+    checkBidi: true,
+    checkHyphens: false,
+    checkJoiners: true,
+    useSTD3ASCIIRules: beStrict,
+    verifyDNSLength: beStrict
+  });
+  if (result === null || result === "") {
+    return failure;
+  }
+  return result;
+}
+
+function trimControlChars(url) {
+  return url.replace(/^[\u0000-\u001F\u0020]+|[\u0000-\u001F\u0020]+$/ug, "");
+}
+
+function trimTabAndNewline(url) {
+  return url.replace(/\u0009|\u000A|\u000D/ug, "");
+}
+
+function shortenPath(url) {
+  const { path } = url;
+  if (path.length === 0) {
+    return;
+  }
+  if (url.scheme === "file" && path.length === 1 && isNormalizedWindowsDriveLetter(path[0])) {
+    return;
+  }
+
+  path.pop();
+}
+
+function includesCredentials(url) {
+  return url.username !== "" || url.password !== "";
+}
+
+function cannotHaveAUsernamePasswordPort(url) {
+  return url.host === null || url.host === "" || url.scheme === "file";
+}
+
+function hasAnOpaquePath(url) {
+  return typeof url.path === "string";
+}
+
+function isNormalizedWindowsDriveLetter(string) {
+  return /^[A-Za-z]:$/u.test(string);
+}
+
+function URLStateMachine(input, base, encodingOverride, url, stateOverride) {
+  this.pointer = 0;
+  this.input = input;
+  this.base = base || null;
+  this.encodingOverride = encodingOverride || "utf-8";
+  this.stateOverride = stateOverride;
+  this.url = url;
+  this.failure = false;
+  this.parseError = false;
+
+  if (!this.url) {
+    this.url = {
+      scheme: "",
+      username: "",
+      password: "",
+      host: null,
+      port: null,
+      path: [],
+      query: null,
+      fragment: null
+    };
+
+    const res = trimControlChars(this.input);
+    if (res !== this.input) {
+      this.parseError = true;
+    }
+    this.input = res;
+  }
+
+  const res = trimTabAndNewline(this.input);
+  if (res !== this.input) {
+    this.parseError = true;
+  }
+  this.input = res;
+
+  this.state = stateOverride || "scheme start";
+
+  this.buffer = "";
+  this.atFlag = false;
+  this.arrFlag = false;
+  this.passwordTokenSeenFlag = false;
+
+  this.input = Array.from(this.input, c => c.codePointAt(0));
+
+  for (; this.pointer <= this.input.length; ++this.pointer) {
+    const c = this.input[this.pointer];
+    const cStr = isNaN(c) ? undefined : String.fromCodePoint(c);
+
+    // exec state machine
+    const ret = this[`parse ${this.state}`](c, cStr);
+    if (!ret) {
+      break; // terminate algorithm
+    } else if (ret === failure) {
+      this.failure = true;
+      break;
+    }
+  }
+}
+
+URLStateMachine.prototype["parse scheme start"] = function parseSchemeStart(c, cStr) {
+  if (infra.isASCIIAlpha(c)) {
+    this.buffer += cStr.toLowerCase();
+    this.state = "scheme";
+  } else if (!this.stateOverride) {
+    this.state = "no scheme";
+    --this.pointer;
+  } else {
+    this.parseError = true;
+    return failure;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse scheme"] = function parseScheme(c, cStr) {
+  if (infra.isASCIIAlphanumeric(c) || c === p("+") || c === p("-") || c === p(".")) {
+    this.buffer += cStr.toLowerCase();
+  } else if (c === p(":")) {
+    if (this.stateOverride) {
+      if (isSpecial(this.url) && !isSpecialScheme(this.buffer)) {
+        return false;
+      }
+
+      if (!isSpecial(this.url) && isSpecialScheme(this.buffer)) {
+        return false;
+      }
+
+      if ((includesCredentials(this.url) || this.url.port !== null) && this.buffer === "file") {
+        return false;
+      }
+
+      if (this.url.scheme === "file" && this.url.host === "") {
+        return false;
+      }
+    }
+    this.url.scheme = this.buffer;
+    if (this.stateOverride) {
+      if (this.url.port === defaultPort(this.url.scheme)) {
+        this.url.port = null;
+      }
+      return false;
+    }
+    this.buffer = "";
+    if (this.url.scheme === "file") {
+      if (this.input[this.pointer + 1] !== p("/") || this.input[this.pointer + 2] !== p("/")) {
+        this.parseError = true;
+      }
+      this.state = "file";
+    } else if (isSpecial(this.url) && this.base !== null && this.base.scheme === this.url.scheme) {
+      this.state = "special relative or authority";
+    } else if (isSpecial(this.url)) {
+      this.state = "special authority slashes";
+    } else if (this.input[this.pointer + 1] === p("/")) {
+      this.state = "path or authority";
+      ++this.pointer;
+    } else {
+      this.url.path = "";
+      this.state = "opaque path";
+    }
+  } else if (!this.stateOverride) {
+    this.buffer = "";
+    this.state = "no scheme";
+    this.pointer = -1;
+  } else {
+    this.parseError = true;
+    return failure;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse no scheme"] = function parseNoScheme(c) {
+  if (this.base === null || (hasAnOpaquePath(this.base) && c !== p("#"))) {
+    return failure;
+  } else if (hasAnOpaquePath(this.base) && c === p("#")) {
+    this.url.scheme = this.base.scheme;
+    this.url.path = this.base.path;
+    this.url.query = this.base.query;
+    this.url.fragment = "";
+    this.state = "fragment";
+  } else if (this.base.scheme === "file") {
+    this.state = "file";
+    --this.pointer;
+  } else {
+    this.state = "relative";
+    --this.pointer;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse special relative or authority"] = function parseSpecialRelativeOrAuthority(c) {
+  if (c === p("/") && this.input[this.pointer + 1] === p("/")) {
+    this.state = "special authority ignore slashes";
+    ++this.pointer;
+  } else {
+    this.parseError = true;
+    this.state = "relative";
+    --this.pointer;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse path or authority"] = function parsePathOrAuthority(c) {
+  if (c === p("/")) {
+    this.state = "authority";
+  } else {
+    this.state = "path";
+    --this.pointer;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse relative"] = function parseRelative(c) {
+  this.url.scheme = this.base.scheme;
+  if (c === p("/")) {
+    this.state = "relative slash";
+  } else if (isSpecial(this.url) && c === p("\\")) {
+    this.parseError = true;
+    this.state = "relative slash";
+  } else {
+    this.url.username = this.base.username;
+    this.url.password = this.base.password;
+    this.url.host = this.base.host;
+    this.url.port = this.base.port;
+    this.url.path = this.base.path.slice();
+    this.url.query = this.base.query;
+    if (c === p("?")) {
+      this.url.query = "";
+      this.state = "query";
+    } else if (c === p("#")) {
+      this.url.fragment = "";
+      this.state = "fragment";
+    } else if (!isNaN(c)) {
+      this.url.query = null;
+      this.url.path.pop();
+      this.state = "path";
+      --this.pointer;
+    }
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse relative slash"] = function parseRelativeSlash(c) {
+  if (isSpecial(this.url) && (c === p("/") || c === p("\\"))) {
+    if (c === p("\\")) {
+      this.parseError = true;
+    }
+    this.state = "special authority ignore slashes";
+  } else if (c === p("/")) {
+    this.state = "authority";
+  } else {
+    this.url.username = this.base.username;
+    this.url.password = this.base.password;
+    this.url.host = this.base.host;
+    this.url.port = this.base.port;
+    this.state = "path";
+    --this.pointer;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse special authority slashes"] = function parseSpecialAuthoritySlashes(c) {
+  if (c === p("/") && this.input[this.pointer + 1] === p("/")) {
+    this.state = "special authority ignore slashes";
+    ++this.pointer;
+  } else {
+    this.parseError = true;
+    this.state = "special authority ignore slashes";
+    --this.pointer;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse special authority ignore slashes"] = function parseSpecialAuthorityIgnoreSlashes(c) {
+  if (c !== p("/") && c !== p("\\")) {
+    this.state = "authority";
+    --this.pointer;
+  } else {
+    this.parseError = true;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse authority"] = function parseAuthority(c, cStr) {
+  if (c === p("@")) {
+    this.parseError = true;
+    if (this.atFlag) {
+      this.buffer = `%40${this.buffer}`;
+    }
+    this.atFlag = true;
+
+    // careful, this is based on buffer and has its own pointer (this.pointer != pointer) and inner chars
+    const len = countSymbols(this.buffer);
+    for (let pointer = 0; pointer < len; ++pointer) {
+      const codePoint = this.buffer.codePointAt(pointer);
+
+      if (codePoint === p(":") && !this.passwordTokenSeenFlag) {
+        this.passwordTokenSeenFlag = true;
+        continue;
+      }
+      const encodedCodePoints = utf8PercentEncodeCodePoint(codePoint, isUserinfoPercentEncode);
+      if (this.passwordTokenSeenFlag) {
+        this.url.password += encodedCodePoints;
+      } else {
+        this.url.username += encodedCodePoints;
+      }
+    }
+    this.buffer = "";
+  } else if (isNaN(c) || c === p("/") || c === p("?") || c === p("#") ||
+             (isSpecial(this.url) && c === p("\\"))) {
+    if (this.atFlag && this.buffer === "") {
+      this.parseError = true;
+      return failure;
+    }
+    this.pointer -= countSymbols(this.buffer) + 1;
+    this.buffer = "";
+    this.state = "host";
+  } else {
+    this.buffer += cStr;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse hostname"] =
+URLStateMachine.prototype["parse host"] = function parseHostName(c, cStr) {
+  if (this.stateOverride && this.url.scheme === "file") {
+    --this.pointer;
+    this.state = "file host";
+  } else if (c === p(":") && !this.arrFlag) {
+    if (this.buffer === "") {
+      this.parseError = true;
+      return failure;
+    }
+
+    if (this.stateOverride === "hostname") {
+      return false;
+    }
+
+    const host = parseHost(this.buffer, isNotSpecial(this.url));
+    if (host === failure) {
+      return failure;
+    }
+
+    this.url.host = host;
+    this.buffer = "";
+    this.state = "port";
+  } else if (isNaN(c) || c === p("/") || c === p("?") || c === p("#") ||
+             (isSpecial(this.url) && c === p("\\"))) {
+    --this.pointer;
+    if (isSpecial(this.url) && this.buffer === "") {
+      this.parseError = true;
+      return failure;
+    } else if (this.stateOverride && this.buffer === "" &&
+               (includesCredentials(this.url) || this.url.port !== null)) {
+      this.parseError = true;
+      return false;
+    }
+
+    const host = parseHost(this.buffer, isNotSpecial(this.url));
+    if (host === failure) {
+      return failure;
+    }
+
+    this.url.host = host;
+    this.buffer = "";
+    this.state = "path start";
+    if (this.stateOverride) {
+      return false;
+    }
+  } else {
+    if (c === p("[")) {
+      this.arrFlag = true;
+    } else if (c === p("]")) {
+      this.arrFlag = false;
+    }
+    this.buffer += cStr;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse port"] = function parsePort(c, cStr) {
+  if (infra.isASCIIDigit(c)) {
+    this.buffer += cStr;
+  } else if (isNaN(c) || c === p("/") || c === p("?") || c === p("#") ||
+             (isSpecial(this.url) && c === p("\\")) ||
+             this.stateOverride) {
+    if (this.buffer !== "") {
+      const port = parseInt(this.buffer);
+      if (port > 2 ** 16 - 1) {
+        this.parseError = true;
+        return failure;
+      }
+      this.url.port = port === defaultPort(this.url.scheme) ? null : port;
+      this.buffer = "";
+    }
+    if (this.stateOverride) {
+      return false;
+    }
+    this.state = "path start";
+    --this.pointer;
+  } else {
+    this.parseError = true;
+    return failure;
+  }
+
+  return true;
+};
+
+const fileOtherwiseCodePoints = new Set([p("/"), p("\\"), p("?"), p("#")]);
+
+function startsWithWindowsDriveLetter(input, pointer) {
+  const length = input.length - pointer;
+  return length >= 2 &&
+    isWindowsDriveLetterCodePoints(input[pointer], input[pointer + 1]) &&
+    (length === 2 || fileOtherwiseCodePoints.has(input[pointer + 2]));
+}
+
+URLStateMachine.prototype["parse file"] = function parseFile(c) {
+  this.url.scheme = "file";
+  this.url.host = "";
+
+  if (c === p("/") || c === p("\\")) {
+    if (c === p("\\")) {
+      this.parseError = true;
+    }
+    this.state = "file slash";
+  } else if (this.base !== null && this.base.scheme === "file") {
+    this.url.host = this.base.host;
+    this.url.path = this.base.path.slice();
+    this.url.query = this.base.query;
+    if (c === p("?")) {
+      this.url.query = "";
+      this.state = "query";
+    } else if (c === p("#")) {
+      this.url.fragment = "";
+      this.state = "fragment";
+    } else if (!isNaN(c)) {
+      this.url.query = null;
+      if (!startsWithWindowsDriveLetter(this.input, this.pointer)) {
+        shortenPath(this.url);
+      } else {
+        this.parseError = true;
+        this.url.path = [];
+      }
+
+      this.state = "path";
+      --this.pointer;
+    }
+  } else {
+    this.state = "path";
+    --this.pointer;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse file slash"] = function parseFileSlash(c) {
+  if (c === p("/") || c === p("\\")) {
+    if (c === p("\\")) {
+      this.parseError = true;
+    }
+    this.state = "file host";
+  } else {
+    if (this.base !== null && this.base.scheme === "file") {
+      if (!startsWithWindowsDriveLetter(this.input, this.pointer) &&
+          isNormalizedWindowsDriveLetterString(this.base.path[0])) {
+        this.url.path.push(this.base.path[0]);
+      }
+      this.url.host = this.base.host;
+    }
+    this.state = "path";
+    --this.pointer;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse file host"] = function parseFileHost(c, cStr) {
+  if (isNaN(c) || c === p("/") || c === p("\\") || c === p("?") || c === p("#")) {
+    --this.pointer;
+    if (!this.stateOverride && isWindowsDriveLetterString(this.buffer)) {
+      this.parseError = true;
+      this.state = "path";
+    } else if (this.buffer === "") {
+      this.url.host = "";
+      if (this.stateOverride) {
+        return false;
+      }
+      this.state = "path start";
+    } else {
+      let host = parseHost(this.buffer, isNotSpecial(this.url));
+      if (host === failure) {
+        return failure;
+      }
+      if (host === "localhost") {
+        host = "";
+      }
+      this.url.host = host;
+
+      if (this.stateOverride) {
+        return false;
+      }
+
+      this.buffer = "";
+      this.state = "path start";
+    }
+  } else {
+    this.buffer += cStr;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse path start"] = function parsePathStart(c) {
+  if (isSpecial(this.url)) {
+    if (c === p("\\")) {
+      this.parseError = true;
+    }
+    this.state = "path";
+
+    if (c !== p("/") && c !== p("\\")) {
+      --this.pointer;
+    }
+  } else if (!this.stateOverride && c === p("?")) {
+    this.url.query = "";
+    this.state = "query";
+  } else if (!this.stateOverride && c === p("#")) {
+    this.url.fragment = "";
+    this.state = "fragment";
+  } else if (c !== undefined) {
+    this.state = "path";
+    if (c !== p("/")) {
+      --this.pointer;
+    }
+  } else if (this.stateOverride && this.url.host === null) {
+    this.url.path.push("");
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse path"] = function parsePath(c) {
+  if (isNaN(c) || c === p("/") || (isSpecial(this.url) && c === p("\\")) ||
+      (!this.stateOverride && (c === p("?") || c === p("#")))) {
+    if (isSpecial(this.url) && c === p("\\")) {
+      this.parseError = true;
+    }
+
+    if (isDoubleDot(this.buffer)) {
+      shortenPath(this.url);
+      if (c !== p("/") && !(isSpecial(this.url) && c === p("\\"))) {
+        this.url.path.push("");
+      }
+    } else if (isSingleDot(this.buffer) && c !== p("/") &&
+               !(isSpecial(this.url) && c === p("\\"))) {
+      this.url.path.push("");
+    } else if (!isSingleDot(this.buffer)) {
+      if (this.url.scheme === "file" && this.url.path.length === 0 && isWindowsDriveLetterString(this.buffer)) {
+        this.buffer = `${this.buffer[0]}:`;
+      }
+      this.url.path.push(this.buffer);
+    }
+    this.buffer = "";
+    if (c === p("?")) {
+      this.url.query = "";
+      this.state = "query";
+    }
+    if (c === p("#")) {
+      this.url.fragment = "";
+      this.state = "fragment";
+    }
+  } else {
+    // TODO: If c is not a URL code point and not "%", parse error.
+
+    if (c === p("%") &&
+      (!infra.isASCIIHex(this.input[this.pointer + 1]) ||
+        !infra.isASCIIHex(this.input[this.pointer + 2]))) {
+      this.parseError = true;
+    }
+
+    this.buffer += utf8PercentEncodeCodePoint(c, isPathPercentEncode);
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse opaque path"] = function parseOpaquePath(c) {
+  if (c === p("?")) {
+    this.url.query = "";
+    this.state = "query";
+  } else if (c === p("#")) {
+    this.url.fragment = "";
+    this.state = "fragment";
+  } else {
+    // TODO: Add: not a URL code point
+    if (!isNaN(c) && c !== p("%")) {
+      this.parseError = true;
+    }
+
+    if (c === p("%") &&
+        (!infra.isASCIIHex(this.input[this.pointer + 1]) ||
+         !infra.isASCIIHex(this.input[this.pointer + 2]))) {
+      this.parseError = true;
+    }
+
+    if (!isNaN(c)) {
+      this.url.path += utf8PercentEncodeCodePoint(c, isC0ControlPercentEncode);
+    }
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse query"] = function parseQuery(c, cStr) {
+  if (!isSpecial(this.url) || this.url.scheme === "ws" || this.url.scheme === "wss") {
+    this.encodingOverride = "utf-8";
+  }
+
+  if ((!this.stateOverride && c === p("#")) || isNaN(c)) {
+    const queryPercentEncodePredicate = isSpecial(this.url) ? isSpecialQueryPercentEncode : isQueryPercentEncode;
+    this.url.query += utf8PercentEncodeString(this.buffer, queryPercentEncodePredicate);
+
+    this.buffer = "";
+
+    if (c === p("#")) {
+      this.url.fragment = "";
+      this.state = "fragment";
+    }
+  } else if (!isNaN(c)) {
+    // TODO: If c is not a URL code point and not "%", parse error.
+
+    if (c === p("%") &&
+      (!infra.isASCIIHex(this.input[this.pointer + 1]) ||
+        !infra.isASCIIHex(this.input[this.pointer + 2]))) {
+      this.parseError = true;
+    }
+
+    this.buffer += cStr;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse fragment"] = function parseFragment(c) {
+  if (!isNaN(c)) {
+    // TODO: If c is not a URL code point and not "%", parse error.
+    if (c === p("%") &&
+      (!infra.isASCIIHex(this.input[this.pointer + 1]) ||
+        !infra.isASCIIHex(this.input[this.pointer + 2]))) {
+      this.parseError = true;
+    }
+
+    this.url.fragment += utf8PercentEncodeCodePoint(c, isFragmentPercentEncode);
+  }
+
+  return true;
+};
+
+function serializeURL(url, excludeFragment) {
+  let output = `${url.scheme}:`;
+  if (url.host !== null) {
+    output += "//";
+
+    if (url.username !== "" || url.password !== "") {
+      output += url.username;
+      if (url.password !== "") {
+        output += `:${url.password}`;
+      }
+      output += "@";
+    }
+
+    output += serializeHost(url.host);
+
+    if (url.port !== null) {
+      output += `:${url.port}`;
+    }
+  }
+
+  if (url.host === null && !hasAnOpaquePath(url) && url.path.length > 1 && url.path[0] === "") {
+    output += "/.";
+  }
+  output += serializePath(url);
+
+  if (url.query !== null) {
+    output += `?${url.query}`;
+  }
+
+  if (!excludeFragment && url.fragment !== null) {
+    output += `#${url.fragment}`;
+  }
+
+  return output;
+}
+
+function serializeOrigin(tuple) {
+  let result = `${tuple.scheme}://`;
+  result += serializeHost(tuple.host);
+
+  if (tuple.port !== null) {
+    result += `:${tuple.port}`;
+  }
+
+  return result;
+}
+
+function serializePath(url) {
+  if (hasAnOpaquePath(url)) {
+    return url.path;
+  }
+
+  let output = "";
+  for (const segment of url.path) {
+    output += `/${segment}`;
+  }
+  return output;
+}
+
+module.exports.serializeURL = serializeURL;
+
+module.exports.serializePath = serializePath;
+
+module.exports.serializeURLOrigin = function (url) {
+  // https://url.spec.whatwg.org/#concept-url-origin
+  switch (url.scheme) {
+    case "blob": {
+      const pathURL = module.exports.parseURL(serializePath(url));
+      if (pathURL === null) {
+        return "null";
+      }
+      if (pathURL.scheme !== "http" && pathURL.scheme !== "https") {
+        return "null";
+      }
+      return module.exports.serializeURLOrigin(pathURL);
+    }
+    case "ftp":
+    case "http":
+    case "https":
+    case "ws":
+    case "wss":
+      return serializeOrigin({
+        scheme: url.scheme,
+        host: url.host,
+        port: url.port
+      });
+    case "file":
+      // The spec says:
+      // > Unfortunate as it is, this is left as an exercise to the reader. When in doubt, return a new opaque origin.
+      // Browsers tested so far:
+      // - Chrome says "file://", but treats file: URLs as cross-origin for most (all?) purposes; see e.g.
+      //   https://bugs.chromium.org/p/chromium/issues/detail?id=37586
+      // - Firefox says "null", but treats file: URLs as same-origin sometimes based on directory stuff; see
+      //   https://developer.mozilla.org/en-US/docs/Archive/Misc_top_level/Same-origin_policy_for_file:_URIs
+      return "null";
+    default:
+      // serializing an opaque origin returns "null"
+      return "null";
+  }
+};
+
+module.exports.basicURLParse = function (input, options) {
+  if (options === undefined) {
+    options = {};
+  }
+
+  const usm = new URLStateMachine(input, options.baseURL, options.encodingOverride, options.url, options.stateOverride);
+  if (usm.failure) {
+    return null;
+  }
+
+  return usm.url;
+};
+
+module.exports.setTheUsername = function (url, username) {
+  url.username = utf8PercentEncodeString(username, isUserinfoPercentEncode);
+};
+
+module.exports.setThePassword = function (url, password) {
+  url.password = utf8PercentEncodeString(password, isUserinfoPercentEncode);
+};
+
+module.exports.serializeHost = serializeHost;
+
+module.exports.cannotHaveAUsernamePasswordPort = cannotHaveAUsernamePasswordPort;
+
+module.exports.hasAnOpaquePath = hasAnOpaquePath;
+
+module.exports.serializeInteger = function (integer) {
+  return String(integer);
+};
+
+module.exports.parseURL = function (input, options) {
+  if (options === undefined) {
+    options = {};
+  }
+
+  // We don't handle blobs, so this just delegates:
+  return module.exports.basicURLParse(input, { baseURL: options.baseURL, encodingOverride: options.encodingOverride });
+};
diff --git a/backend/node_modules/whatwg-url/lib/urlencoded.js b/backend/node_modules/whatwg-url/lib/urlencoded.js
new file mode 100644
index 0000000..e723063
--- /dev/null
+++ b/backend/node_modules/whatwg-url/lib/urlencoded.js
@@ -0,0 +1,106 @@
+"use strict";
+const { utf8Encode, utf8DecodeWithoutBOM } = require("./encoding");
+const { percentDecodeBytes, utf8PercentEncodeString, isURLEncodedPercentEncode } = require("./percent-encoding");
+
+function p(char) {
+  return char.codePointAt(0);
+}
+
+// https://url.spec.whatwg.org/#concept-urlencoded-parser
+function parseUrlencoded(input) {
+  const sequences = strictlySplitByteSequence(input, p("&"));
+  const output = [];
+  for (const bytes of sequences) {
+    if (bytes.length === 0) {
+      continue;
+    }
+
+    let name, value;
+    const indexOfEqual = bytes.indexOf(p("="));
+
+    if (indexOfEqual >= 0) {
+      name = bytes.slice(0, indexOfEqual);
+      value = bytes.slice(indexOfEqual + 1);
+    } else {
+      name = bytes;
+      value = new Uint8Array(0);
+    }
+
+    name = replaceByteInByteSequence(name, 0x2B, 0x20);
+    value = replaceByteInByteSequence(value, 0x2B, 0x20);
+
+    const nameString = utf8DecodeWithoutBOM(percentDecodeBytes(name));
+    const valueString = utf8DecodeWithoutBOM(percentDecodeBytes(value));
+
+    output.push([nameString, valueString]);
+  }
+  return output;
+}
+
+// https://url.spec.whatwg.org/#concept-urlencoded-string-parser
+function parseUrlencodedString(input) {
+  return parseUrlencoded(utf8Encode(input));
+}
+
+// https://url.spec.whatwg.org/#concept-urlencoded-serializer
+function serializeUrlencoded(tuples, encodingOverride = undefined) {
+  let encoding = "utf-8";
+  if (encodingOverride !== undefined) {
+    // TODO "get the output encoding", i.e. handle encoding labels vs. names.
+    encoding = encodingOverride;
+  }
+
+  let output = "";
+  for (const [i, tuple] of tuples.entries()) {
+    // TODO: handle encoding override
+
+    const name = utf8PercentEncodeString(tuple[0], isURLEncodedPercentEncode, true);
+
+    let value = tuple[1];
+    if (tuple.length > 2 && tuple[2] !== undefined) {
+      if (tuple[2] === "hidden" && name === "_charset_") {
+        value = encoding;
+      } else if (tuple[2] === "file") {
+        // value is a File object
+        value = value.name;
+      }
+    }
+
+    value = utf8PercentEncodeString(value, isURLEncodedPercentEncode, true);
+
+    if (i !== 0) {
+      output += "&";
+    }
+    output += `${name}=${value}`;
+  }
+  return output;
+}
+
+function strictlySplitByteSequence(buf, cp) {
+  const list = [];
+  let last = 0;
+  let i = buf.indexOf(cp);
+  while (i >= 0) {
+    list.push(buf.slice(last, i));
+    last = i + 1;
+    i = buf.indexOf(cp, last);
+  }
+  if (last !== buf.length) {
+    list.push(buf.slice(last));
+  }
+  return list;
+}
+
+function replaceByteInByteSequence(buf, from, to) {
+  let i = buf.indexOf(from);
+  while (i >= 0) {
+    buf[i] = to;
+    i = buf.indexOf(from, i + 1);
+  }
+  return buf;
+}
+
+module.exports = {
+  parseUrlencodedString,
+  serializeUrlencoded
+};
diff --git a/backend/node_modules/whatwg-url/lib/utils.js b/backend/node_modules/whatwg-url/lib/utils.js
new file mode 100644
index 0000000..3af1770
--- /dev/null
+++ b/backend/node_modules/whatwg-url/lib/utils.js
@@ -0,0 +1,190 @@
+"use strict";
+
+// Returns "Type(value) is Object" in ES terminology.
+function isObject(value) {
+  return (typeof value === "object" && value !== null) || typeof value === "function";
+}
+
+const hasOwn = Function.prototype.call.bind(Object.prototype.hasOwnProperty);
+
+// Like `Object.assign`, but using `[[GetOwnProperty]]` and `[[DefineOwnProperty]]`
+// instead of `[[Get]]` and `[[Set]]` and only allowing objects
+function define(target, source) {
+  for (const key of Reflect.ownKeys(source)) {
+    const descriptor = Reflect.getOwnPropertyDescriptor(source, key);
+    if (descriptor && !Reflect.defineProperty(target, key, descriptor)) {
+      throw new TypeError(`Cannot redefine property: ${String(key)}`);
+    }
+  }
+}
+
+function newObjectInRealm(globalObject, object) {
+  const ctorRegistry = initCtorRegistry(globalObject);
+  return Object.defineProperties(
+    Object.create(ctorRegistry["%Object.prototype%"]),
+    Object.getOwnPropertyDescriptors(object)
+  );
+}
+
+const wrapperSymbol = Symbol("wrapper");
+const implSymbol = Symbol("impl");
+const sameObjectCaches = Symbol("SameObject caches");
+const ctorRegistrySymbol = Symbol.for("[webidl2js] constructor registry");
+
+const AsyncIteratorPrototype = Object.getPrototypeOf(Object.getPrototypeOf(async function* () {}).prototype);
+
+function initCtorRegistry(globalObject) {
+  if (hasOwn(globalObject, ctorRegistrySymbol)) {
+    return globalObject[ctorRegistrySymbol];
+  }
+
+  const ctorRegistry = Object.create(null);
+
+  // In addition to registering all the WebIDL2JS-generated types in the constructor registry,
+  // we also register a few intrinsics that we make use of in generated code, since they are not
+  // easy to grab from the globalObject variable.
+  ctorRegistry["%Object.prototype%"] = globalObject.Object.prototype;
+  ctorRegistry["%IteratorPrototype%"] = Object.getPrototypeOf(
+    Object.getPrototypeOf(new globalObject.Array()[Symbol.iterator]())
+  );
+
+  try {
+    ctorRegistry["%AsyncIteratorPrototype%"] = Object.getPrototypeOf(
+      Object.getPrototypeOf(
+        globalObject.eval("(async function* () {})").prototype
+      )
+    );
+  } catch {
+    ctorRegistry["%AsyncIteratorPrototype%"] = AsyncIteratorPrototype;
+  }
+
+  globalObject[ctorRegistrySymbol] = ctorRegistry;
+  return ctorRegistry;
+}
+
+function getSameObject(wrapper, prop, creator) {
+  if (!wrapper[sameObjectCaches]) {
+    wrapper[sameObjectCaches] = Object.create(null);
+  }
+
+  if (prop in wrapper[sameObjectCaches]) {
+    return wrapper[sameObjectCaches][prop];
+  }
+
+  wrapper[sameObjectCaches][prop] = creator();
+  return wrapper[sameObjectCaches][prop];
+}
+
+function wrapperForImpl(impl) {
+  return impl ? impl[wrapperSymbol] : null;
+}
+
+function implForWrapper(wrapper) {
+  return wrapper ? wrapper[implSymbol] : null;
+}
+
+function tryWrapperForImpl(impl) {
+  const wrapper = wrapperForImpl(impl);
+  return wrapper ? wrapper : impl;
+}
+
+function tryImplForWrapper(wrapper) {
+  const impl = implForWrapper(wrapper);
+  return impl ? impl : wrapper;
+}
+
+const iterInternalSymbol = Symbol("internal");
+
+function isArrayIndexPropName(P) {
+  if (typeof P !== "string") {
+    return false;
+  }
+  const i = P >>> 0;
+  if (i === 2 ** 32 - 1) {
+    return false;
+  }
+  const s = `${i}`;
+  if (P !== s) {
+    return false;
+  }
+  return true;
+}
+
+const byteLengthGetter =
+    Object.getOwnPropertyDescriptor(ArrayBuffer.prototype, "byteLength").get;
+function isArrayBuffer(value) {
+  try {
+    byteLengthGetter.call(value);
+    return true;
+  } catch (e) {
+    return false;
+  }
+}
+
+function iteratorResult([key, value], kind) {
+  let result;
+  switch (kind) {
+    case "key":
+      result = key;
+      break;
+    case "value":
+      result = value;
+      break;
+    case "key+value":
+      result = [key, value];
+      break;
+  }
+  return { value: result, done: false };
+}
+
+const supportsPropertyIndex = Symbol("supports property index");
+const supportedPropertyIndices = Symbol("supported property indices");
+const supportsPropertyName = Symbol("supports property name");
+const supportedPropertyNames = Symbol("supported property names");
+const indexedGet = Symbol("indexed property get");
+const indexedSetNew = Symbol("indexed property set new");
+const indexedSetExisting = Symbol("indexed property set existing");
+const namedGet = Symbol("named property get");
+const namedSetNew = Symbol("named property set new");
+const namedSetExisting = Symbol("named property set existing");
+const namedDelete = Symbol("named property delete");
+
+const asyncIteratorNext = Symbol("async iterator get the next iteration result");
+const asyncIteratorReturn = Symbol("async iterator return steps");
+const asyncIteratorInit = Symbol("async iterator initialization steps");
+const asyncIteratorEOI = Symbol("async iterator end of iteration");
+
+module.exports = exports = {
+  isObject,
+  hasOwn,
+  define,
+  newObjectInRealm,
+  wrapperSymbol,
+  implSymbol,
+  getSameObject,
+  ctorRegistrySymbol,
+  initCtorRegistry,
+  wrapperForImpl,
+  implForWrapper,
+  tryWrapperForImpl,
+  tryImplForWrapper,
+  iterInternalSymbol,
+  isArrayBuffer,
+  isArrayIndexPropName,
+  supportsPropertyIndex,
+  supportedPropertyIndices,
+  supportsPropertyName,
+  supportedPropertyNames,
+  indexedGet,
+  indexedSetNew,
+  indexedSetExisting,
+  namedGet,
+  namedSetNew,
+  namedSetExisting,
+  namedDelete,
+  asyncIteratorNext,
+  asyncIteratorReturn,
+  asyncIteratorInit,
+  asyncIteratorEOI,
+  iteratorResult
+};
diff --git a/backend/node_modules/whatwg-url/package.json b/backend/node_modules/whatwg-url/package.json
new file mode 100644
index 0000000..1c9c50d
--- /dev/null
+++ b/backend/node_modules/whatwg-url/package.json
@@ -0,0 +1,52 @@
+{
+  "name": "whatwg-url",
+  "version": "14.1.0",
+  "description": "An implementation of the WHATWG URL Standard's URL API and parsing machinery",
+  "main": "index.js",
+  "files": [
+    "index.js",
+    "webidl2js-wrapper.js",
+    "lib/*.js"
+  ],
+  "author": "Sebastian Mayr <github@smayr.name>",
+  "license": "MIT",
+  "repository": "jsdom/whatwg-url",
+  "dependencies": {
+    "tr46": "^5.0.0",
+    "webidl-conversions": "^7.0.0"
+  },
+  "devDependencies": {
+    "@domenic/eslint-config": "^4.0.1",
+    "benchmark": "^2.1.4",
+    "c8": "^10.1.2",
+    "esbuild": "^0.24.0",
+    "eslint": "^9.16.0",
+    "globals": "^15.13.0",
+    "webidl2js": "^18.0.0"
+  },
+  "engines": {
+    "node": ">=18"
+  },
+  "scripts": {
+    "coverage": "c8 node --test --experimental-test-coverage test/*.js",
+    "lint": "eslint",
+    "prepare": "node scripts/transform.js",
+    "pretest": "node scripts/get-latest-platform-tests.js && node scripts/transform.js",
+    "build-live-viewer": "esbuild --bundle --format=esm --sourcemap --outfile=live-viewer/whatwg-url.mjs index.js",
+    "test": "node --test test/*.js"
+  },
+  "c8": {
+    "reporter": [
+      "text",
+      "html"
+    ],
+    "exclude": [
+      "lib/Function.js",
+      "lib/URL.js",
+      "lib/URLSearchParams.js",
+      "lib/utils.js",
+      "scripts/",
+      "test/"
+    ]
+  }
+}
diff --git a/backend/node_modules/whatwg-url/webidl2js-wrapper.js b/backend/node_modules/whatwg-url/webidl2js-wrapper.js
new file mode 100644
index 0000000..b731ace
--- /dev/null
+++ b/backend/node_modules/whatwg-url/webidl2js-wrapper.js
@@ -0,0 +1,7 @@
+"use strict";
+
+const URL = require("./lib/URL");
+const URLSearchParams = require("./lib/URLSearchParams");
+
+exports.URL = URL;
+exports.URLSearchParams = URLSearchParams;
diff --git a/backend/node_modules/xtend/.jshintrc b/backend/node_modules/xtend/.jshintrc
new file mode 100644
index 0000000..77887b5
--- /dev/null
+++ b/backend/node_modules/xtend/.jshintrc
@@ -0,0 +1,30 @@
+{
+    "maxdepth": 4,
+    "maxstatements": 200,
+    "maxcomplexity": 12,
+    "maxlen": 80,
+    "maxparams": 5,
+
+    "curly": true,
+    "eqeqeq": true,
+    "immed": true,
+    "latedef": false,
+    "noarg": true,
+    "noempty": true,
+    "nonew": true,
+    "undef": true,
+    "unused": "vars",
+    "trailing": true,
+
+    "quotmark": true,
+    "expr": true,
+    "asi": true,
+
+    "browser": false,
+    "esnext": true,
+    "devel": false,
+    "node": false,
+    "nonstandard": false,
+
+    "predef": ["require", "module", "__dirname", "__filename"]
+}
diff --git a/backend/node_modules/xtend/LICENSE b/backend/node_modules/xtend/LICENSE
new file mode 100644
index 0000000..0099f4f
--- /dev/null
+++ b/backend/node_modules/xtend/LICENSE
@@ -0,0 +1,20 @@
+The MIT License (MIT)
+Copyright (c) 2012-2014 Raynos.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/xtend/README.md b/backend/node_modules/xtend/README.md
new file mode 100644
index 0000000..4a2703c
--- /dev/null
+++ b/backend/node_modules/xtend/README.md
@@ -0,0 +1,32 @@
+# xtend
+
+[![browser support][3]][4]
+
+[![locked](http://badges.github.io/stability-badges/dist/locked.svg)](http://github.com/badges/stability-badges)
+
+Extend like a boss
+
+xtend is a basic utility library which allows you to extend an object by appending all of the properties from each object in a list. When there are identical properties, the right-most property takes precedence.
+
+## Examples
+
+```js
+var extend = require("xtend")
+
+// extend returns a new object. Does not mutate arguments
+var combination = extend({
+    a: "a",
+    b: "c"
+}, {
+    b: "b"
+})
+// { a: "a", b: "b" }
+```
+
+## Stability status: Locked
+
+## MIT Licensed 
+
+
+  [3]: http://ci.testling.com/Raynos/xtend.png
+  [4]: http://ci.testling.com/Raynos/xtend
diff --git a/backend/node_modules/xtend/immutable.js b/backend/node_modules/xtend/immutable.js
new file mode 100644
index 0000000..94889c9
--- /dev/null
+++ b/backend/node_modules/xtend/immutable.js
@@ -0,0 +1,19 @@
+module.exports = extend
+
+var hasOwnProperty = Object.prototype.hasOwnProperty;
+
+function extend() {
+    var target = {}
+
+    for (var i = 0; i < arguments.length; i++) {
+        var source = arguments[i]
+
+        for (var key in source) {
+            if (hasOwnProperty.call(source, key)) {
+                target[key] = source[key]
+            }
+        }
+    }
+
+    return target
+}
diff --git a/backend/node_modules/xtend/mutable.js b/backend/node_modules/xtend/mutable.js
new file mode 100644
index 0000000..72debed
--- /dev/null
+++ b/backend/node_modules/xtend/mutable.js
@@ -0,0 +1,17 @@
+module.exports = extend
+
+var hasOwnProperty = Object.prototype.hasOwnProperty;
+
+function extend(target) {
+    for (var i = 1; i < arguments.length; i++) {
+        var source = arguments[i]
+
+        for (var key in source) {
+            if (hasOwnProperty.call(source, key)) {
+                target[key] = source[key]
+            }
+        }
+    }
+
+    return target
+}
diff --git a/backend/node_modules/xtend/package.json b/backend/node_modules/xtend/package.json
new file mode 100644
index 0000000..f7a39d1
--- /dev/null
+++ b/backend/node_modules/xtend/package.json
@@ -0,0 +1,55 @@
+{
+  "name": "xtend",
+  "version": "4.0.2",
+  "description": "extend like a boss",
+  "keywords": [
+    "extend",
+    "merge",
+    "options",
+    "opts",
+    "object",
+    "array"
+  ],
+  "author": "Raynos <raynos2@gmail.com>",
+  "repository": "git://github.com/Raynos/xtend.git",
+  "main": "immutable",
+  "scripts": {
+    "test": "node test"
+  },
+  "dependencies": {},
+  "devDependencies": {
+    "tape": "~1.1.0"
+  },
+  "homepage": "https://github.com/Raynos/xtend",
+  "contributors": [
+    {
+      "name": "Jake Verbaten"
+    },
+    {
+      "name": "Matt Esch"
+    }
+  ],
+  "bugs": {
+    "url": "https://github.com/Raynos/xtend/issues",
+    "email": "raynos2@gmail.com"
+  },
+  "license": "MIT",
+  "testling": {
+    "files": "test.js",
+    "browsers": [
+      "ie/7..latest",
+      "firefox/16..latest",
+      "firefox/nightly",
+      "chrome/22..latest",
+      "chrome/canary",
+      "opera/12..latest",
+      "opera/next",
+      "safari/5.1..latest",
+      "ipad/6.0..latest",
+      "iphone/6.0..latest"
+    ]
+  },
+  "engines": {
+    "node": ">=0.4"
+  }
+}
diff --git a/backend/node_modules/xtend/test.js b/backend/node_modules/xtend/test.js
new file mode 100644
index 0000000..b895b42
--- /dev/null
+++ b/backend/node_modules/xtend/test.js
@@ -0,0 +1,103 @@
+var test = require("tape")
+var extend = require("./")
+var mutableExtend = require("./mutable")
+
+test("merge", function(assert) {
+    var a = { a: "foo" }
+    var b = { b: "bar" }
+
+    assert.deepEqual(extend(a, b), { a: "foo", b: "bar" })
+    assert.end()
+})
+
+test("replace", function(assert) {
+    var a = { a: "foo" }
+    var b = { a: "bar" }
+
+    assert.deepEqual(extend(a, b), { a: "bar" })
+    assert.end()
+})
+
+test("undefined", function(assert) {
+    var a = { a: undefined }
+    var b = { b: "foo" }
+
+    assert.deepEqual(extend(a, b), { a: undefined, b: "foo" })
+    assert.deepEqual(extend(b, a), { a: undefined, b: "foo" })
+    assert.end()
+})
+
+test("handle 0", function(assert) {
+    var a = { a: "default" }
+    var b = { a: 0 }
+
+    assert.deepEqual(extend(a, b), { a: 0 })
+    assert.deepEqual(extend(b, a), { a: "default" })
+    assert.end()
+})
+
+test("is immutable", function (assert) {
+    var record = {}
+
+    extend(record, { foo: "bar" })
+    assert.equal(record.foo, undefined)
+    assert.end()
+})
+
+test("null as argument", function (assert) {
+    var a = { foo: "bar" }
+    var b = null
+    var c = void 0
+
+    assert.deepEqual(extend(b, a, c), { foo: "bar" })
+    assert.end()
+})
+
+test("mutable", function (assert) {
+    var a = { foo: "bar" }
+
+    mutableExtend(a, { bar: "baz" })
+
+    assert.equal(a.bar, "baz")
+    assert.end()
+})
+
+test("null prototype", function(assert) {
+    var a = { a: "foo" }
+    var b = Object.create(null)
+    b.b = "bar";
+
+    assert.deepEqual(extend(a, b), { a: "foo", b: "bar" })
+    assert.end()
+})
+
+test("null prototype mutable", function (assert) {
+    var a = { foo: "bar" }
+    var b = Object.create(null)
+    b.bar = "baz";
+
+    mutableExtend(a, b)
+
+    assert.equal(a.bar, "baz")
+    assert.end()
+})
+
+test("prototype pollution", function (assert) {
+    var a = {}
+    var maliciousPayload = '{"__proto__":{"oops":"It works!"}}'
+
+    assert.strictEqual(a.oops, undefined)
+    extend({}, maliciousPayload)
+    assert.strictEqual(a.oops, undefined)
+    assert.end()
+})
+
+test("prototype pollution mutable", function (assert) {
+    var a = {}
+    var maliciousPayload = '{"__proto__":{"oops":"It works!"}}'
+
+    assert.strictEqual(a.oops, undefined)
+    mutableExtend({}, maliciousPayload)
+    assert.strictEqual(a.oops, undefined)
+    assert.end()
+})
diff --git a/backend/package-lock.json b/backend/package-lock.json
new file mode 100644
index 0000000..3766cbe
--- /dev/null
+++ b/backend/package-lock.json
@@ -0,0 +1,1365 @@
+{
+  "name": "backend",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "backend",
+      "version": "1.0.0",
+      "license": "ISC",
+      "dependencies": {
+        "axios": "^1.7.9",
+        "body-parser": "^1.20.3",
+        "cors": "^2.8.5",
+        "dotenv": "^16.4.7",
+        "express": "^4.21.2",
+        "moment": "^2.30.1",
+        "mongoose": "^8.9.7",
+        "multer": "^1.4.5-lts.1",
+        "nodemailer": "^6.10.0"
+      }
+    },
+    "node_modules/@mongodb-js/saslprep": {
+      "version": "1.1.9",
+      "resolved": "https://registry.npmjs.org/@mongodb-js/saslprep/-/saslprep-1.1.9.tgz",
+      "integrity": "sha512-tVkljjeEaAhCqTzajSdgbQ6gE6f3oneVwa3iXR6csiEwXXOFsiC6Uh9iAjAhXPtqa/XMDHWjjeNH/77m/Yq2dw==",
+      "license": "MIT",
+      "dependencies": {
+        "sparse-bitfield": "^3.0.3"
+      }
+    },
+    "node_modules/@types/webidl-conversions": {
+      "version": "7.0.3",
+      "resolved": "https://registry.npmjs.org/@types/webidl-conversions/-/webidl-conversions-7.0.3.tgz",
+      "integrity": "sha512-CiJJvcRtIgzadHCYXw7dqEnMNRjhGZlYK05Mj9OyktqV8uVT8fD2BFOB7S1uwBE3Kj2Z+4UyPmFw/Ixgw/LAlA==",
+      "license": "MIT"
+    },
+    "node_modules/@types/whatwg-url": {
+      "version": "11.0.5",
+      "resolved": "https://registry.npmjs.org/@types/whatwg-url/-/whatwg-url-11.0.5.tgz",
+      "integrity": "sha512-coYR071JRaHa+xoEvvYqvnIHaVqaYrLPbsufM9BF63HkwI5Lgmy2QR8Q5K/lYDYo5AK82wOvSOS0UsLTpTG7uQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/webidl-conversions": "*"
+      }
+    },
+    "node_modules/accepts": {
+      "version": "1.3.8",
+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz",
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+      "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.4"
+      }
+    }
+  }
+}
diff --git a/backend/package.json b/backend/package.json
new file mode 100644
index 0000000..afc1c53
--- /dev/null
+++ b/backend/package.json
@@ -0,0 +1,23 @@
+{
+  "name": "backend",
+  "version": "1.0.0",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "description": "",
+  "dependencies": {
+    "axios": "^1.7.9",
+    "body-parser": "^1.20.3",
+    "cors": "^2.8.5",
+    "dotenv": "^16.4.7",
+    "express": "^4.21.2",
+    "moment": "^2.30.1",
+    "mongoose": "^8.9.7",
+    "multer": "^1.4.5-lts.1",
+    "nodemailer": "^6.10.0"
+  }
+}
diff --git a/backend/server.js b/backend/server.js
new file mode 100644
index 0000000..5abc949
--- /dev/null
+++ b/backend/server.js
@@ -0,0 +1,164 @@
+//server.js
+
+require("dotenv").config();
+const express = require("express");
+const mongoose = require("mongoose");
+const bodyParser = require("body-parser");
+const cors = require("cors");
+const nodemailer = require("nodemailer");
+const multer = require("multer");
+const path = require("path");
+const moment = require("moment");
+
+const app = express();
+app.use(cors());
+app.use(bodyParser.json());
+app.use(bodyParser.urlencoded({ extended: true }));
+app.use("/uploads", express.static("uploads"));
+
+// Multer setup for file uploads
+const storage = multer.diskStorage({
+  destination: "uploads/",
+  filename: (req, file, cb) => {
+    cb(null, Date.now() + path.extname(file.originalname));
+  },
+});
+const upload = multer({ storage });
+
+// MongoDB connection
+mongoose
+  .connect(process.env.MONGODB_URI, { useNewUrlParser: true, useUnifiedTopology: true })
+  .then(() => console.log("Connected to MongoDB"))
+  .catch((err) => console.error("MongoDB Connection Error:", err));
+
+// Meeting Schema
+const meetingSchema = new mongoose.Schema({
+  program: String,
+  department: String,
+  subject: String,
+  body: String,
+  agenda: [String],
+  date: String,
+  startTime: String,
+  endTime: String,
+  recipients: [String],
+  attachments: [{ filename: String, path: String }],
+});
+const Meeting = mongoose.model("Meeting", meetingSchema);
+
+// API to send email
+app.post("/api/send-email", upload.array("attachments"), async (req, res) => {
+  try {
+    const { program, department, subject, body, agenda, date, startTime, endTime, recipients } = req.body;
+    const files = req.files;
+
+    if (!program || !department || !subject || !body || !date || !startTime || !endTime || !recipients) {
+      return res.status(400).json({ error: "All fields are required!" });
+    }
+
+    // Check for meeting conflicts
+    const conflict = await Meeting.findOne({
+      date,
+      startTime: { $lt: endTime },
+      endTime: { $gt: startTime },
+    });
+
+    if (conflict) {
+      // Return the details of the conflicting meeting
+      const conflictDetails = {
+        department: conflict.department,
+        date: conflict.date,
+        startTime: conflict.startTime,
+        endTime: conflict.endTime,
+        recipients: conflict.recipients,
+        subject: conflict.subject,
+      };
+
+      return res.status(409).json({ 
+        error: "Meeting conflict detected! Please choose a different time.",
+        conflictDetails 
+      });
+    }
+
+    // Format date and time properly
+    const formattedDate = moment(date, "YYYY-MM-DD").format("dddd, MMMM Do YYYY");
+    const formattedStartTime = moment(startTime, "HH:mm").format("hh:mm A");
+    const formattedEndTime = moment(endTime, "HH:mm").format("hh:mm A");
+
+    // Format Google Calendar event link
+    const formattedStart = moment(`${date} ${startTime}`, "YYYY-MM-DD HH:mm").utc().format("YYYYMMDDTHHmmss[Z]");
+    const formattedEnd = moment(`${date} ${endTime}`, "YYYY-MM-DD HH:mm").utc().format("YYYYMMDDTHHmmss[Z]");
+    const zoomLink = "https://us05web.zoom.us/j/2655616202?pwd=S3d6RjVPNnhmQ3AzTlZsRC9GYmNHQT09";
+    const calendarLink = `https://calendar.google.com/calendar/render?action=TEMPLATE&text=${encodeURIComponent(
+      subject
+    )}&details=${encodeURIComponent(`${body}\nJoin Zoom Meeting: ${zoomLink}`)}&dates=${formattedStart}/${formattedEnd}`;
+
+    // Format agenda into pointwise list
+    const formattedAgenda = agenda
+      ? agenda.map((item, index) => `<li>${index + 1}. ${item}</li>`).join("")
+      : "<li>No agenda provided</li>";
+
+    // Store meeting in DB
+    const newMeeting = new Meeting({
+      program,
+      department,
+      subject,
+      body,
+      agenda,
+      date,
+      startTime,
+      endTime,
+      recipients,
+      attachments: files.map((file) => ({ filename: file.filename, path: file.path })),
+    });
+    await newMeeting.save();
+
+    // Email transporter
+    const transporter = nodemailer.createTransport({
+      service: "gmail",
+      auth: {
+        user: process.env.EMAIL,
+        pass: process.env.EMAIL_PASSWORD,
+      },
+    });
+
+    // Email options
+    const mailOptions = {
+      from: process.env.EMAIL,
+      to: recipients,
+      subject,
+      html: `
+        <p><strong>Respected Board Members,</strong></p>
+        <p><strong>Greetings from Somaiya Vidyavihar University !!</strong></p>
+        <p><strong>We are glad to invite you to the Board of Studies meeting: </strong></p>
+        <p>${body}</p>
+        <p><strong>Program:</strong> ${program}</p>
+        <p><strong>Department:</strong> ${department}</p>
+        <p><strong>Date:</strong> ${formattedDate}</p>
+        <p><strong>Time:</strong> ${formattedStartTime} - ${formattedEndTime}</p>
+        <p><strong>Zoom Meeting Details:</strong></p>
+        <p><strong>Meeting ID: </strong>265 561 6202</p>
+        <p><strong>Meeting Password: </strong>123456</p>
+        <p><strong>Zoom Meeting Link: </strong><a href="https://us05web.zoom.us/j/2655616202?pwd=S3d6RjVPNnhmQ3AzTlZsRC9GYmNHQT09" target="_blank">Join the Meeting</a></p>
+        <p><strong>Agenda:</strong></p>
+        <ul>${formattedAgenda}</ul>
+        <p><a href="${calendarLink}">📅 Click here to add this event to Google Calendar</a></p>
+      `,
+      attachments: files.map((file) => ({
+        filename: file.filename,
+        path: file.path,
+      })),
+    };
+
+    // Send email
+    await transporter.sendMail(mailOptions);
+    res.status(200).json({ message: "Email sent successfully!", calendarLink });
+  } catch (error) {
+    console.error("Error sending email:", error);
+    res.status(500).json({ error: "Error sending email" });
+  }
+});
+
+// Start server
+const PORT = process.env.PORT || 5000;
+app.listen(PORT, () => console.log(`Server running on port ${PORT}`));
diff --git a/backend/uploads/1738781990410.png b/backend/uploads/1738781990410.png
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diff --git a/backend/uploads/1739175098994.docx b/backend/uploads/1739175098994.docx
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diff --git a/frontend/.gitignore b/frontend/.gitignore
new file mode 100644
index 0000000..4d29575
--- /dev/null
+++ b/frontend/.gitignore
@@ -0,0 +1,23 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
diff --git a/frontend/README.md b/frontend/README.md
new file mode 100644
index 0000000..58beeac
--- /dev/null
+++ b/frontend/README.md
@@ -0,0 +1,70 @@
+# Getting Started with Create React App
+
+This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).
+
+## Available Scripts
+
+In the project directory, you can run:
+
+### `npm start`
+
+Runs the app in the development mode.\
+Open [http://localhost:3000](http://localhost:3000) to view it in your browser.
+
+The page will reload when you make changes.\
+You may also see any lint errors in the console.
+
+### `npm test`
+
+Launches the test runner in the interactive watch mode.\
+See the section about [running tests](https://facebook.github.io/create-react-app/docs/running-tests) for more information.
+
+### `npm run build`
+
+Builds the app for production to the `build` folder.\
+It correctly bundles React in production mode and optimizes the build for the best performance.
+
+The build is minified and the filenames include the hashes.\
+Your app is ready to be deployed!
+
+See the section about [deployment](https://facebook.github.io/create-react-app/docs/deployment) for more information.
+
+### `npm run eject`
+
+**Note: this is a one-way operation. Once you `eject`, you can't go back!**
+
+If you aren't satisfied with the build tool and configuration choices, you can `eject` at any time. This command will remove the single build dependency from your project.
+
+Instead, it will copy all the configuration files and the transitive dependencies (webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except `eject` will still work, but they will point to the copied scripts so you can tweak them. At this point you're on your own.
+
+You don't have to ever use `eject`. The curated feature set is suitable for small and middle deployments, and you shouldn't feel obligated to use this feature. However we understand that this tool wouldn't be useful if you couldn't customize it when you are ready for it.
+
+## Learn More
+
+You can learn more in the [Create React App documentation](https://facebook.github.io/create-react-app/docs/getting-started).
+
+To learn React, check out the [React documentation](https://reactjs.org/).
+
+### Code Splitting
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/code-splitting](https://facebook.github.io/create-react-app/docs/code-splitting)
+
+### Analyzing the Bundle Size
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size](https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size)
+
+### Making a Progressive Web App
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app](https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app)
+
+### Advanced Configuration
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/advanced-configuration](https://facebook.github.io/create-react-app/docs/advanced-configuration)
+
+### Deployment
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/deployment](https://facebook.github.io/create-react-app/docs/deployment)
+
+### `npm run build` fails to minify
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify](https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify)
diff --git a/frontend/package-lock.json b/frontend/package-lock.json
new file mode 100644
index 0000000..f9d35f2
--- /dev/null
+++ b/frontend/package-lock.json
@@ -0,0 +1,18303 @@
+{
+  "name": "frontend",
+  "version": "0.1.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "frontend",
+      "version": "0.1.0",
+      "dependencies": {
+        "@react-oauth/google": "^0.12.1",
+        "axios": "^1.7.9",
+        "cra-template": "1.2.0",
+        "firebase": "^11.2.0",
+        "react": "^19.0.0",
+        "react-dom": "^19.0.0",
+        "react-icons": "^5.4.0",
+        "react-router-dom": "^7.1.5",
+        "react-scripts": "5.0.1",
+        "web-vitals": "^4.2.4"
+      }
+    },
+    "node_modules/@alloc/quick-lru": {
+      "version": "5.2.0",
+      "resolved": "https://registry.npmjs.org/@alloc/quick-lru/-/quick-lru-5.2.0.tgz",
+      "integrity": "sha512-UrcABB+4bUrFABwbluTIBErXwvbsU/V7TZWfmbgJfbkwiBuziS9gxdODUyuiecfdGQ85jglMW6juS3+z5TsKLw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=10"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/@ampproject/remapping": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/@ampproject/remapping/-/remapping-2.3.0.tgz",
+      "integrity": "sha512-30iZtAPgz+LTIYoeivqYo853f02jBYSd5uGnGpkFV0M3xOt9aN73erkgYAmZU43x4VfqcnLxW9Kpg3R5LC4YYw==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@jridgewell/gen-mapping": "^0.3.5",
+        "@jridgewell/trace-mapping": "^0.3.24"
+      },
+      "engines": {
+        "node": ">=6.0.0"
+      }
+    },
+    "node_modules/@babel/code-frame": {
+      "version": "7.26.2",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.26.2.tgz",
+      "integrity": "sha512-RJlIHRueQgwWitWgF8OdFYGZX328Ax5BCemNGlqHfplnRT9ESi8JkFlvaVYbS+UubVY6dpv87Fs2u5M29iNFVQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@babel/helper-validator-identifier": "^7.25.9",
+        "js-tokens": "^4.0.0",
+        "picocolors": "^1.0.0"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/@babel/compat-data": {
+      "version": "7.26.5",
+      "resolved": "https://registry.npmjs.org/@babel/compat-data/-/compat-data-7.26.5.tgz",
+      "integrity": "sha512-XvcZi1KWf88RVbF9wn8MN6tYFloU5qX8KjuF3E1PVBmJ9eypXfs4GRiJwLuTZL0iSnJUKn1BFPa5BPZZJyFzPg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/@babel/core": {
+      "version": "7.26.7",
+      "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.26.7.tgz",
+      "integrity": "sha512-SRijHmF0PSPgLIBYlWnG0hyeJLwXE2CgpsXaMOrtt2yp9/86ALw6oUlj9KYuZ0JN07T4eBMVIW4li/9S1j2BGA==",
+      "license": "MIT",
+      "dependencies": {
+        "@ampproject/remapping": "^2.2.0",
+        "@babel/code-frame": "^7.26.2",
+        "@babel/generator": "^7.26.5",
+        "@babel/helper-compilation-targets": "^7.26.5",
+        "@babel/helper-module-transforms": "^7.26.0",
+        "@babel/helpers": "^7.26.7",
+        "@babel/parser": "^7.26.7",
+        "@babel/template": "^7.25.9",
+        "@babel/traverse": "^7.26.7",
+        "@babel/types": "^7.26.7",
+        "convert-source-map": "^2.0.0",
+        "debug": "^4.1.0",
+        "gensync": "^1.0.0-beta.2",
+        "json5": "^2.2.3",
+        "semver": "^6.3.1"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/babel"
+      }
+    },
+    "node_modules/@babel/core/node_modules/semver": {
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+      "license": "ISC",
+      "bin": {
+        "semver": "bin/semver.js"
+      }
+    },
+    "node_modules/@babel/eslint-parser": {
+      "version": "7.26.5",
+      "resolved": "https://registry.npmjs.org/@babel/eslint-parser/-/eslint-parser-7.26.5.tgz",
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+      "license": "MIT",
+      "dependencies": {
+        "@nicolo-ribaudo/eslint-scope-5-internals": "5.1.1-v1",
+        "eslint-visitor-keys": "^2.1.0",
+        "semver": "^6.3.1"
+      },
+      "engines": {
+        "node": "^10.13.0 || ^12.13.0 || >=14.0.0"
+      },
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+      }
+    },
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+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=10"
+      }
+    },
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+      "license": "ISC",
+      "bin": {
+        "semver": "bin/semver.js"
+      }
+    },
+    "node_modules/@babel/generator": {
+      "version": "7.26.5",
+      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.26.5.tgz",
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+      "license": "MIT",
+      "dependencies": {
+        "@babel/parser": "^7.26.5",
+        "@babel/types": "^7.26.5",
+        "@jridgewell/gen-mapping": "^0.3.5",
+        "@jridgewell/trace-mapping": "^0.3.25",
+        "jsesc": "^3.0.2"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/@babel/helper-annotate-as-pure": {
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+      "license": "MIT",
+      "dependencies": {
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+      },
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+      }
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+      "license": "MIT",
+      "dependencies": {
+        "@babel/compat-data": "^7.26.5",
+        "@babel/helper-validator-option": "^7.25.9",
+        "browserslist": "^4.24.0",
+        "lru-cache": "^5.1.1",
+        "semver": "^6.3.1"
+      },
+      "engines": {
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+      }
+    },
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+      },
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+        "webpack": "^4.4.0 || ^5.9.0"
+      }
+    },
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+      }
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+      "dependencies": {
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+        "string-width": "^4.1.0",
+        "strip-ansi": "^6.0.0"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/wrap-ansi?sponsor=1"
+      }
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+}
diff --git a/frontend/package.json b/frontend/package.json
new file mode 100644
index 0000000..894469f
--- /dev/null
+++ b/frontend/package.json
@@ -0,0 +1,41 @@
+{
+  "name": "frontend",
+  "version": "0.1.0",
+  "private": true,
+  "dependencies": {
+    "@react-oauth/google": "^0.12.1",
+    "axios": "^1.7.9",
+    "cra-template": "1.2.0",
+    "firebase": "^11.2.0",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
+    "react-icons": "^5.4.0",
+    "react-router-dom": "^7.1.5",
+    "react-scripts": "5.0.1",
+    "web-vitals": "^4.2.4"
+  },
+  "scripts": {
+    "start": "react-scripts start",
+    "build": "react-scripts build",
+    "test": "react-scripts test",
+    "eject": "react-scripts eject"
+  },
+  "eslintConfig": {
+    "extends": [
+      "react-app",
+      "react-app/jest"
+    ]
+  },
+  "browserslist": {
+    "production": [
+      ">0.2%",
+      "not dead",
+      "not op_mini all"
+    ],
+    "development": [
+      "last 1 chrome version",
+      "last 1 firefox version",
+      "last 1 safari version"
+    ]
+  }
+}
diff --git a/frontend/public/favicon.ico b/frontend/public/favicon.ico
new file mode 100644
index 0000000..a11777c
Binary files /dev/null and b/frontend/public/favicon.ico differ
diff --git a/frontend/public/index.html b/frontend/public/index.html
new file mode 100644
index 0000000..aa069f2
--- /dev/null
+++ b/frontend/public/index.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <meta name="theme-color" content="#000000" />
+    <meta
+      name="description"
+      content="Web site created using create-react-app"
+    />
+    <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
+    <!--
+      manifest.json provides metadata used when your web app is installed on a
+      user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
+    -->
+    <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
+    <!--
+      Notice the use of %PUBLIC_URL% in the tags above.
+      It will be replaced with the URL of the `public` folder during the build.
+      Only files inside the `public` folder can be referenced from the HTML.
+
+      Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
+      work correctly both with client-side routing and a non-root public URL.
+      Learn how to configure a non-root public URL by running `npm run build`.
+    -->
+    <title>React App</title>
+  </head>
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+    <div id="root"></div>
+    <!--
+      This HTML file is a template.
+      If you open it directly in the browser, you will see an empty page.
+
+      You can add webfonts, meta tags, or analytics to this file.
+      The build step will place the bundled scripts into the <body> tag.
+
+      To begin the development, run `npm start` or `yarn start`.
+      To create a production bundle, use `npm run build` or `yarn build`.
+    -->
+  </body>
+</html>
diff --git a/frontend/public/logo192.png b/frontend/public/logo192.png
new file mode 100644
index 0000000..fc44b0a
Binary files /dev/null and b/frontend/public/logo192.png differ
diff --git a/frontend/public/logo512.png b/frontend/public/logo512.png
new file mode 100644
index 0000000..a4e47a6
Binary files /dev/null and b/frontend/public/logo512.png differ
diff --git a/frontend/public/manifest.json b/frontend/public/manifest.json
new file mode 100644
index 0000000..080d6c7
--- /dev/null
+++ b/frontend/public/manifest.json
@@ -0,0 +1,25 @@
+{
+  "short_name": "React App",
+  "name": "Create React App Sample",
+  "icons": [
+    {
+      "src": "favicon.ico",
+      "sizes": "64x64 32x32 24x24 16x16",
+      "type": "image/x-icon"
+    },
+    {
+      "src": "logo192.png",
+      "type": "image/png",
+      "sizes": "192x192"
+    },
+    {
+      "src": "logo512.png",
+      "type": "image/png",
+      "sizes": "512x512"
+    }
+  ],
+  "start_url": ".",
+  "display": "standalone",
+  "theme_color": "#000000",
+  "background_color": "#ffffff"
+}
diff --git a/frontend/public/robots.txt b/frontend/public/robots.txt
new file mode 100644
index 0000000..e9e57dc
--- /dev/null
+++ b/frontend/public/robots.txt
@@ -0,0 +1,3 @@
+# https://www.robotstxt.org/robotstxt.html
+User-agent: *
+Disallow:
diff --git a/frontend/src/App.css b/frontend/src/App.css
new file mode 100644
index 0000000..74b5e05
--- /dev/null
+++ b/frontend/src/App.css
@@ -0,0 +1,38 @@
+.App {
+  text-align: center;
+}
+
+.App-logo {
+  height: 40vmin;
+  pointer-events: none;
+}
+
+@media (prefers-reduced-motion: no-preference) {
+  .App-logo {
+    animation: App-logo-spin infinite 20s linear;
+  }
+}
+
+.App-header {
+  background-color: #282c34;
+  min-height: 100vh;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  font-size: calc(10px + 2vmin);
+  color: white;
+}
+
+.App-link {
+  color: #61dafb;
+}
+
+@keyframes App-logo-spin {
+  from {
+    transform: rotate(0deg);
+  }
+  to {
+    transform: rotate(360deg);
+  }
+}
diff --git a/frontend/src/App.js b/frontend/src/App.js
new file mode 100644
index 0000000..655a48d
--- /dev/null
+++ b/frontend/src/App.js
@@ -0,0 +1,24 @@
+import React from 'react';
+import { BrowserRouter as Router, Route, Routes } from 'react-router-dom';
+import Page1 from './Page1'; 
+import Page2 from './Page2';
+import Page3 from './Page3';   
+import Page4 from './Page4'; 
+import { GoogleOAuthProvider } from '@react-oauth/google'; 
+
+const App = () => {
+  return (
+    <GoogleOAuthProvider clientId="YOUR_GOOGLE_OAUTH_CLIENT_ID"> 
+      <Router>
+        <Routes>
+          <Route path="/" element={<Page1 />} />
+          <Route path="/page2" element={<Page2 />} /> 
+          <Route path="/page3" element={<Page3 />} />
+          <Route path="/page4" element={<Page4 />} />
+        </Routes>
+      </Router>
+    </GoogleOAuthProvider>
+  );
+};
+
+export default App;
diff --git a/frontend/src/App.test.js b/frontend/src/App.test.js
new file mode 100644
index 0000000..1f03afe
--- /dev/null
+++ b/frontend/src/App.test.js
@@ -0,0 +1,8 @@
+import { render, screen } from '@testing-library/react';
+import App from './App';
+
+test('renders learn react link', () => {
+  render(<App />);
+  const linkElement = screen.getByText(/learn react/i);
+  expect(linkElement).toBeInTheDocument();
+});
diff --git a/frontend/src/Page1.css b/frontend/src/Page1.css
new file mode 100644
index 0000000..e5be370
--- /dev/null
+++ b/frontend/src/Page1.css
@@ -0,0 +1,151 @@
+/* General Styles */
+* {
+    margin: 0;
+    padding: 0;
+    box-sizing: border-box;
+  }
+  
+  body {
+    font-family: Arial, sans-serif;
+    background-image: url('../src/components/campus.jpg');
+    height: 100vh;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+  }
+  
+  .wrapper {
+    width: 100%;
+    max-width: 400px;
+    background-color: white;
+    border-radius: 10px;
+    padding: 30px;
+    color: rgb(166, 2, 2);
+    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
+    border: 2px solid red; /* Add border to see if it's visible */
+  }
+  
+  
+  h2 {
+    font-size: 24px;
+    margin-bottom: 30px;
+    text-align: center;
+  }
+  
+  /* Input box styling */
+  .input-box {
+    position: relative;
+    width: 100%;
+    margin: 20px 0;
+  }
+  
+  .input-box input {
+    width: 100%;
+    padding: 20px 45px 20px 20px;
+    font-size: 14px;
+    color: #020202;
+    border: 2px solid rgba(119, 3, 3, 0.2);
+    border-radius: 40px;
+    outline: none;
+  }
+  
+  .input-box input::placeholder {
+    color: black;
+  }
+  
+  .input-box .icon {
+    position: absolute;
+    right: 20px;
+    top: 50%;
+    transform: translateY(-50%);
+    font-size: 16px;
+  }
+  
+  /* Remember me & Forgot password link styles */
+  .remember-forget {
+    display: flex;
+    justify-content: space-between;
+    font-size: 10px;
+    margin: 0 0 30px;
+  }
+  
+  .remember-forget label {
+    font-size: 14px;
+  }
+  
+  .remember-forget a {
+    color: rgb(166, 2, 2);
+    text-decoration: none;
+  }
+  
+  .remember-forget a:hover {
+    text-decoration: underline;
+  }
+  
+  /* Submit button styling */
+  input[type="submit"] {
+    width: 100%;
+    background-color: #e60000;
+    border: none;
+    border-radius: 40px;
+    padding: 12px 0;
+    color: white;
+    font-size: 16px;
+    cursor: pointer;
+    transition: background-color 0.3s;
+  }
+  
+  input[type="submit"]:hover {
+    background-color: #cc0000;
+  }
+  
+  /* Forgot password form styling */
+  .forgot-password-form {
+    display: none;
+    text-align: center;
+  }
+  
+  .forgot-password-form input {
+    padding: 12px;
+    border-radius: 6px;
+    border: 1px solid #ddd;
+    margin-bottom: 15px;
+  }
+  
+  .forgot-password-form button {
+    background-color: #e60000;
+    color: white;
+    padding: 12px 20px;
+    border: none;
+    border-radius: 6px;
+    cursor: pointer;
+  }
+  
+  .forgot-password-form button:hover {
+    background-color: #cc0000;
+  }
+  
+  .responsive-image {
+    width: 100%;
+    height: auto;
+  }
+  
+  /* Cancel button styling for reset form */
+  #cancel-reset-password {
+    background-color: #ccc;
+    padding: 8px 20px;
+    border: none;
+    border-radius: 6px;
+    cursor: pointer;
+    margin-top: 10px;
+  }
+  
+  #cancel-reset-password:hover {
+    background-color: #bbb;
+  }
+  
+  .google-login {
+    margin-top: 20px;
+    text-align: center;
+  }
+  
\ No newline at end of file
diff --git a/frontend/src/Page1.js b/frontend/src/Page1.js
new file mode 100644
index 0000000..b66e655
--- /dev/null
+++ b/frontend/src/Page1.js
@@ -0,0 +1,201 @@
+import React, { useState, useEffect } from 'react';
+import { useNavigate } from 'react-router-dom';
+import { GoogleLogin } from '@react-oauth/google'; // Import GoogleLogin component
+import { getAuth, signInWithEmailAndPassword, signInWithPopup, GoogleAuthProvider } from 'firebase/auth'; // Firebase authentication methods
+import './Page1.css';
+
+// Firebase configuration
+import { initializeApp } from 'firebase/app';
+const firebaseConfig = {
+    apiKey: "AIzaSyAFVUCBwz_YH7hq3J8pucRSa5elmzRfyCg",
+    authDomain: "bos-app-4de46.firebaseapp.com",
+    projectId: "bos-app-4de46",
+    storageBucket: "bos-app-4de46.firebasestorage.app",
+    messagingSenderId: "73474147810",
+    appId: "1:73474147810:web:c9881eabf41b26d901e5bb",
+    measurementId: "G-RW4J2ZB06P"
+};
+
+const app = initializeApp(firebaseConfig);
+const auth = getAuth(app); // Firebase Auth instance
+
+const Page1 = () => {
+  const [email, setEmail] = useState('');
+  const [password, setPassword] = useState('');
+  const [rememberMe, setRememberMe] = useState(false);
+  const [errorMessage, setErrorMessage] = useState('');
+  const [isForgotPasswordVisible, setIsForgotPasswordVisible] = useState(false);
+  const [resetEmail, setResetEmail] = useState('');
+  const navigate = useNavigate();
+
+  // Allowed credentials
+  const allowedCredentials = [
+    { email: "hodcomp@somaiya.edu", password: "hodcomp123!" },
+    { email: "director.kjsse@somaiya.edu", password: "directorkjsse2024" },
+    { email: "dean.engg@somaiya.edu", password: "deanengg2024" },
+    { email: "hodextc@somaiya.edu", password: "hodextc2024" },
+    { email: "hodetrx@somaiya.edu", password: "hodetrx2024" },
+    { email: "hodit.engg@somaiya.edu", password: "hodit2024" },
+    { email: "hodmech@somaiya.edu", password: "hodmech2024" },
+    { email: "aaryaman.s@somaiya.edu", password: "aaryaman2024" },
+    { email: "mansi.zala@somaiya.edu", password: "mansi2024" },
+    { email: "deputydirector.kjsse@somaiya.edu", password: "deputydirector2024" },
+    { email: "deanap@somaiya.edu", password: "deanap2024" },
+  ];
+
+  // Handle normal login (email/password)
+  const handleLogin = (event) => {
+    event.preventDefault();
+
+    // Check if credentials match allowed credentials
+    const validCredential = allowedCredentials.find(
+      (credential) => credential.email === email && credential.password === password
+    );
+
+    if (validCredential) {
+      alert("Login Successful!");
+
+      if (rememberMe) {
+        localStorage.setItem("rememberedEmail", email);
+      } else {
+        localStorage.removeItem("rememberedEmail");
+      }
+
+      setTimeout(() => {
+        navigate('/page2');
+      }, 1000);
+    } else {
+      // Firebase login logic if the credentials are not in allowed credentials
+      signInWithEmailAndPassword(auth, email, password)
+        .then((userCredential) => {
+          const user = userCredential.user;
+          alert("Firebase Login Successful!");
+
+          if (rememberMe) {
+            localStorage.setItem("rememberedEmail", email);
+          } else {
+            localStorage.removeItem("rememberedEmail");
+          }
+
+          setTimeout(() => {
+            navigate('/page2');
+          }, 1000);
+        })
+        .catch((error) => {
+          setErrorMessage("Invalid email or password. Please check your credentials.");
+        });
+    }
+  };
+
+  // Handle password reset
+  const handleResetPassword = (event) => {
+    event.preventDefault();
+    alert(`A password reset link has been sent to ${resetEmail}.`);
+    setIsForgotPasswordVisible(false);
+  };
+
+  // Google login success handler
+  const handleGoogleLoginSuccess = (response) => {
+    const provider = new GoogleAuthProvider();
+    signInWithPopup(auth, provider)
+      .then((result) => {
+        console.log("Google login success:", result);
+        alert("Google Login Successful!");
+        navigate('/page2');
+      })
+      .catch((error) => {
+        console.error("Google login error:", error);
+        alert("Google Login Failed. Please try again.");
+      });
+  };
+
+  // Google login failure handler
+  const handleGoogleLoginFailure = (error) => {
+    console.error("Google login error:", error);
+    alert("Google Login Failed. Please try again.");
+  };
+
+  return (
+    <div className="wrapper">
+      <form id="login-form" onSubmit={handleLogin}>
+        <img src="../src/image.png" alt="Responsive" className="responsive-image" />
+        <h2>Board Of Studies</h2>
+
+        <div className="input-box">
+          <input
+            type="email"
+            id="email"
+            className="form-control"
+            placeholder="Enter Somaiya email ID"
+            value={email}
+            onChange={(e) => setEmail(e.target.value)}
+            required
+          />
+          <i className="fas fa-user icon"></i>
+        </div>
+
+        <div className="input-box">
+          <input
+            type="password"
+            id="password"
+            className="form-control"
+            placeholder="Enter Password"
+            value={password}
+            onChange={(e) => setPassword(e.target.value)}
+            required
+          />
+          <i className="fas fa-lock icon"></i>
+        </div>
+
+        {errorMessage && <p id="error-message" style={{ color: 'red' }}>{errorMessage}</p>}
+
+        <div className="remember-forget">
+          <label>
+            <input
+              type="checkbox"
+              id="remember-me"
+              checked={rememberMe}
+              onChange={() => setRememberMe(!rememberMe)}
+            /> Remember me
+          </label>
+          <a href="#forgot-password" onClick={(e) => { e.preventDefault(); setIsForgotPasswordVisible(true); }}>
+            <pre>Forgot password?</pre>
+          </a>
+        </div>
+
+        <input className="btn btn-outline-danger" type="submit" value="Login" />
+      </form>
+
+      {/* Forgot Password Form */}
+      {isForgotPasswordVisible && (
+        <div id="forgot-password-form" className="forgot-password-form">
+          <h3>Reset Your Password</h3>
+          <form id="reset-password-form" onSubmit={handleResetPassword}>
+            <input
+              type="email"
+              id="reset-email"
+              placeholder="Enter your registered email"
+              value={resetEmail}
+              onChange={(e) => setResetEmail(e.target.value)}
+              required
+            />
+            <button type="submit">Send Reset Link</button>
+          </form>
+          <button id="cancel-reset-password" onClick={() => setIsForgotPasswordVisible(false)}>Cancel</button>
+        </div>
+      )}
+
+      {/* Google Login Button */}
+      <div className="google-login">
+        <GoogleLogin
+          onSuccess={handleGoogleLoginSuccess}
+          onError={handleGoogleLoginFailure}
+          useOneTap
+          clientId="YOUR_GOOGLE_CLIENT_ID" // Replace with your Firebase client ID
+        />
+      </div>
+    </div>
+  );
+};
+
+export default Page1;
diff --git a/frontend/src/Page2.css b/frontend/src/Page2.css
new file mode 100644
index 0000000..69d6b83
--- /dev/null
+++ b/frontend/src/Page2.css
@@ -0,0 +1,169 @@
+/* General Styles */
+body {
+  margin: 0;
+  padding: 0;
+  font-family: Arial, sans-serif;
+  display: flex;
+  flex-direction: column;
+  height: 100vh; /* Full screen height */
+  overflow: hidden; /* Prevent scrollbars unless necessary */
+  background-color: #fff; /* Solid background */
+}
+
+/* Header Bar */
+.header-bar {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  padding: 0 20px; /* Adjust padding on the sides */
+  height: auto; /* Allow header to adjust based on content */
+  min-height: 100px; /* Minimum height for the header */
+  background-color: white;
+  border-bottom: 2px solid #ccc;
+  width: 100%;
+  box-sizing: border-box;
+}
+
+.header-bar .leftlogo,
+.header-bar .rightlogo {
+  height: 60px; /* Adjust the logo size */
+  width: auto;
+  object-fit: contain; /* Ensure logos don't stretch */
+}
+
+.header-bar .college-name {
+  font-size: 28px; /* Adjust font size to prevent overflow */
+  font-weight: bold;
+  color: #B7202E;
+  text-align: center;
+  flex-grow: 1;
+  padding: 0 10px;
+  z-index: 10;
+  white-space: nowrap; /* Prevent text from wrapping */
+  overflow: visible; /* Ensure text is not cut off */
+  text-overflow: clip; /* Remove ellipsis */
+  margin: 0 20px; /* Add margin to prevent cutting off */
+}
+
+/* Navigation Bar */
+.navbar {
+  background-color: rgb(228, 227, 227);
+  padding: 10px 20px;
+  display: flex;
+  justify-content: center;
+  width: 100%;
+}
+
+.navbar ul {
+  list-style: none;
+  margin: 0;
+  padding: 0;
+  display: flex;
+  justify-content: center;
+}
+
+.navbar ul li {
+  margin-right: 20px;
+  margin-left: 30px;
+}
+
+.navbar ul li a {
+  color: black;
+  text-decoration: none;
+  font-weight: bold;
+  text-align: center;
+}
+
+.navbar ul li a:hover {
+  text-decoration: underline;
+  color: red;
+}
+
+/* Main Container */
+.main-container {
+  display: flex;
+  flex: 1;
+  width: 100%;
+  height: calc(100vh - 160px); /* Subtract the height of the header and footer */
+}
+
+/* Stream Bar (Right Side) */
+.stream-bar {
+  width: 20%;
+  background-color: #f0f0f0;
+  border-left: 2px solid #ccc;
+  padding: 20px;
+  box-shadow: -2px 0 5px rgba(0, 0, 0, 0.1);
+  height: 100%;
+  position: relative;
+}
+
+.stream-bar h3 {
+  margin-top: 0;
+  font-size: 18px;
+  color: #333;
+}
+
+.stream-bar ul {
+  list-style: none;
+  padding: 0;
+  margin: 10px 0;
+}
+
+.stream-bar ul li {
+  padding: 10px;
+  cursor: pointer;
+  border-bottom: 1px solid #ddd;
+  transition: background-color 0.3s;
+}
+
+.stream-bar ul li:hover {
+  background-color: black;
+  color: white;
+}
+
+/* Content Area (Left Side) */
+.content-area {
+  flex: 1;
+  padding: 20px;
+  background-color: #fff;
+  border-left: 2px solid #ccc;
+  overflow-y: auto;
+  height: 100%;
+  box-sizing: border-box;
+}
+
+/* Footer Styles */
+footer {
+  background-color: white;
+  padding: 10px;
+  text-align: center;
+  width: 100%;
+  box-sizing: border-box;
+  margin-top: auto;
+  position: relative;
+}
+
+.terms a {
+  color: black;
+  text-decoration: none;
+  font-weight: bold;
+  font-size: 16px;
+}
+
+.terms a:hover {
+  text-decoration: underline;
+}
+
+.footer-image {
+  width: 100%;
+  margin-top: 10px;
+  margin-bottom: 0;
+  position: relative;
+}
+
+/* Prevent any margin or padding from appearing above or below the page */
+body, html {
+  margin: 0;
+  padding: 0;
+}
\ No newline at end of file
diff --git a/frontend/src/Page2.js b/frontend/src/Page2.js
new file mode 100644
index 0000000..ead2196
--- /dev/null
+++ b/frontend/src/Page2.js
@@ -0,0 +1,77 @@
+import React, { useState } from "react";
+import { Link } from "react-router-dom";
+import './Page2.css'; // CSS File import
+
+// Import images from the src/components folder
+import image from './components/image.png';
+import somaiyatrust from './components/somaiyatrust.png';
+import redlines from './components/redlines.png';
+
+const Page2 = () => {
+  const [selectedStream, setSelectedStream] = useState(null);
+
+  // Handle stream click to display content
+  const handleStreamClick = (stream) => {
+    setSelectedStream(stream);
+  };
+
+  return (
+    <div className="page-container">
+      {/* Header Bar */}
+      <header className="header-bar">
+        <img src={image} alt="Left Logo" className="leftlogo" />
+        <h1 className="college-name">Somaiya Scheduler</h1>
+        <img src={somaiyatrust} alt="Right Logo" className="rightlogo" />
+      </header>
+
+      {/* Navigation Bar */}
+      <nav className="navbar">
+        <ul>
+          <li><Link to="/page2">Home</Link></li>
+          <li><Link to="/page3">Schedule</Link></li>
+          <li><a href="#">About</a></li>
+          <li><a href="#">Contact</a></li>
+          <li><Link to="/">Login/Signup</Link></li>
+        </ul>
+      </nav>
+
+      {/* Main Content Container */}
+      <div className="main-container">
+        {/* Stream Bar (Right Side) */}
+        <div className="stream-bar" id="streamBar">
+          <h3>Streams</h3>
+          <ul>
+            <li onClick={() => handleStreamClick("Engineering & Technology")}><Link to="/page4">Engineering & Technology</Link></li>
+            <li onClick={() => handleStreamClick("Management")}>Management Studies</li>
+            <li onClick={() => handleStreamClick("Education")}>Education</li>
+            <li onClick={() => handleStreamClick("Dharama")}>Dharama Studies</li>
+            <li onClick={() => handleStreamClick("Commerce")}>Commerce & Business Studies</li>
+            <li onClick={() => handleStreamClick("Science")}>Science</li>
+            <li onClick={() => handleStreamClick("Humanities")}>Humanities & Social Science</li>
+            <li onClick={() => handleStreamClick("Music")}>Music Performance & Art</li>
+            <li onClick={() => handleStreamClick("Language")}>Language & Literature</li>
+          </ul>
+        </div>
+
+        {/* Content Area (Left Side) */}
+        <div className="content-area" id="contentArea">
+          {selectedStream ? (
+            <p>You selected <strong>{selectedStream}</strong>. Here are the programs and faculty details.</p>
+          ) : (
+            <p>Select a stream to view its programs and faculty.</p>
+          )}
+        </div>
+      </div>
+
+      {/* Footer */}
+      <footer>
+        <div className="terms">
+          <a href="#">Terms and Policies</a>
+          <img src={redlines} alt="Footer Logo" className="footer-image" />
+        </div>
+      </footer>
+    </div>
+  );
+};
+
+export default Page2;
diff --git a/frontend/src/Page3.css b/frontend/src/Page3.css
new file mode 100644
index 0000000..3e94abc
--- /dev/null
+++ b/frontend/src/Page3.css
@@ -0,0 +1,57 @@
+/* Page3.css */
+.container {
+    width: 100%;
+    max-width: 600px;
+    margin: 0 auto;
+    padding: 20px;
+    text-align: center;
+    font-family: Arial, sans-serif;
+  }
+  
+  h1 {
+    font-size: 2rem;
+    margin-bottom: 20px;
+    color: #333;
+  }
+  
+  form {
+    margin-bottom: 20px;
+  }
+  
+  button {
+    background-color: #007bff;
+    color: white;
+    border: none;
+    padding: 10px 20px;
+    font-size: 1rem;
+    cursor: pointer;
+    border-radius: 5px;
+    transition: background-color 0.3s;
+  }
+  
+  button:hover {
+    background-color: #0056b3;
+  }
+  
+  #meetingDetails {
+    margin-top: 20px;
+    padding: 15px;
+    background-color: #f8f9fa;
+    border-radius: 5px;
+    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
+  }
+  
+  #meetingDetails p {
+    font-size: 1rem;
+    color: #333;
+  }
+  
+  #meetingDetails a {
+    color: #007bff;
+    text-decoration: none;
+  }
+  
+  #meetingDetails a:hover {
+    text-decoration: underline;
+  }
+  
\ No newline at end of file
diff --git a/frontend/src/Page3.js b/frontend/src/Page3.js
new file mode 100644
index 0000000..43e75d2
--- /dev/null
+++ b/frontend/src/Page3.js
@@ -0,0 +1,51 @@
+import React, { useState } from "react";
+import './Page3.css'
+
+const Page3 = () => {
+  const [meetingDetails, setMeetingDetails] = useState(null);
+
+  // Handle form submission
+  const handleSubmit = async (event) => {
+    event.preventDefault();
+
+    try {
+      const response = await fetch('/create-meeting', {
+        method: 'POST',
+        headers: {
+          'Content-Type': 'application/json',
+        },
+      });
+
+      const data = await response.json();
+      setMeetingDetails({
+        id: data.id,
+        join_url: data.join_url,
+      });
+    } catch (error) {
+      console.error("Error creating meeting:", error);
+    }
+  };
+
+  return (
+    <div>
+      <h1>Generate Zoom Meeting</h1>
+      <form id="meetingForm" onSubmit={handleSubmit}>
+        <button type="submit">Create Meeting</button>
+      </form>
+
+      {meetingDetails && (
+        <div id="meetingDetails">
+          <p>Meeting ID: {meetingDetails.id}</p>
+          <p>
+            Join URL:{" "}
+            <a href={meetingDetails.join_url} target="_blank" rel="noopener noreferrer">
+              {meetingDetails.join_url}
+            </a>
+          </p>
+        </div>
+      )}
+    </div>
+  );
+};
+
+export default Page3;
diff --git a/frontend/src/Page4.css b/frontend/src/Page4.css
new file mode 100644
index 0000000..4c57b0c
--- /dev/null
+++ b/frontend/src/Page4.css
@@ -0,0 +1,135 @@
+/* Container for the content area */
+.content-area {
+    width: 100%;
+    max-width: 800px;
+    margin: 0 auto;
+    padding: 20px;
+    background-color: #fff;
+    border-radius: 10px;
+    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
+    font-family: Arial, sans-serif;
+  }
+  
+  /* Heading Style */
+  .content-area h1 {
+    font-size: 30px;
+    font-weight: 600;
+    color: #333;
+    margin-bottom: 20px;
+    text-align: center;
+  }
+  
+  /* Label Styling */
+  .content-area label {
+    font-size: 16px;
+    font-weight: 500;
+    color: #333;
+    margin-top: 10px;
+    display: block;
+  }
+  
+  /* Input Fields and Select Styling */
+  .content-area input[type="text"],
+  .content-area input[type="email"],
+  .content-area input[type="date"],
+  .content-area input[type="time"],
+  .content-area select,
+  .content-area textarea {
+    width: 100%;
+    padding: 12px;
+    margin-top: 8px;
+    margin-bottom: 12px;
+    border: 1px solid #ccc;
+    border-radius: 5px;
+    font-size: 16px;
+    box-sizing: border-box;
+    outline: none;
+    transition: border-color 0.3s ease;
+  }
+  
+  /* Focus effect for input fields */
+  .content-area input:focus,
+  .content-area select:focus,
+  .content-area textarea:focus {
+    border-color: #4CAF50;
+  }
+  
+  /* Textarea Specific Styling */
+  .content-area textarea {
+    height: 150px;
+    resize: vertical;
+  }
+  
+  /* Agenda and Recipients Section Styling */
+  .content-area .agenda-item,
+  .content-area .recipient-item {
+    display: flex;
+    align-items: center;
+    margin-top: 10px;
+  }
+  
+  .content-area .agenda-item input,
+  .content-area .recipient-item input {
+    flex: 1;
+    margin-right: 10px;
+  }
+  
+  .content-area button {
+    width: 100%;
+    padding: 12px;
+    background-color: #4CAF50;
+    color: white;
+    font-size: 16px;
+    border: none;
+    border-radius: 5px;
+    cursor: pointer;
+    transition: background-color 0.3s ease;
+    margin-bottom: 10px;
+  }
+  
+  .content-area button:hover {
+    background-color: #45a049;
+  }
+  
+  /* Remove Button Styling for Agenda & Recipients */
+  .content-area .FaTimes {
+    color: red;
+    cursor: pointer;
+    margin-left: 10px;
+  }
+  
+  /* Attachments Input Styling */
+  .content-area input[type="file"] {
+    padding: 8px;
+    margin-top: 8px;
+    margin-bottom: 12px;
+  }
+  
+  /* Margin for buttons */
+  .content-area button:not(:last-child) {
+    margin-bottom: 10px;
+  }
+  
+  /* Responsiveness */
+  @media (max-width: 768px) {
+    .content-area {
+      padding: 15px;
+    }
+  
+    .content-area h1 {
+      font-size: 24px;
+    }
+  
+    .content-area label,
+    .content-area input,
+    .content-area select,
+    .content-area textarea {
+      font-size: 14px;
+    }
+  
+    .content-area button {
+      font-size: 14px;
+      padding: 10px;
+    }
+  }
+  
\ No newline at end of file
diff --git a/frontend/src/Page4.js b/frontend/src/Page4.js
new file mode 100644
index 0000000..4f88ec1
--- /dev/null
+++ b/frontend/src/Page4.js
@@ -0,0 +1,224 @@
+import React, { useState } from "react";
+import { Link } from "react-router-dom";
+import axios from "axios";
+import './Page2.css';
+import './Page4.css'; // Import the same CSS file for consistent styling
+import { FaTimes } from "react-icons/fa"; // Red cross icon for agenda/removal
+import image from './components/image.png';
+import somaiyatrust from './components/somaiyatrust.png';
+import redlines from './components/redlines.png';
+
+const programs = ["BTech", "MTech", "PhD"];
+const departments = [
+  "Artificial Intelligence & Data Science",
+  "Computer Engineering",
+  "Computer & Communication Engineering",
+  "Computer Science & Business Systems",
+  "Electronics Engineering (VLSI Design & Technology)",
+  "Electronics & Computer Engineering",
+  "Electronics & Telecommunication Engineering",
+  "Information Technology",
+  "Mechanical Engineering",
+  "Robotics & Artificial Intelligence",
+];
+
+const Page4 = () => {
+  const [program, setProgram] = useState("");
+  const [department, setDepartment] = useState("");
+  const [subject, setSubject] = useState("");
+  const [body, setBody] = useState("");
+  const [agenda, setAgenda] = useState([""]);
+  const [date, setDate] = useState("");
+  const [startTime, setStartTime] = useState("");
+  const [endTime, setEndTime] = useState("");
+  const [recipients, setRecipients] = useState([""]);
+  const [attachments, setAttachments] = useState([]);
+
+  const addAgenda = () => setAgenda([...agenda, ""]);
+  const handleAgendaChange = (index, value) => {
+    const updatedAgenda = [...agenda];
+    updatedAgenda[index] = value;
+    setAgenda(updatedAgenda);
+  };
+  const removeAgenda = (index) => {
+    const updatedAgenda = agenda.filter((_, i) => i !== index);
+    setAgenda(updatedAgenda);
+  };
+
+  const addRecipient = () => setRecipients([...recipients, ""]);
+  const handleRecipientChange = (index, value) => {
+    const updatedRecipients = [...recipients];
+    updatedRecipients[index] = value;
+    setRecipients(updatedRecipients);
+  };
+  const removeRecipient = (index) => {
+    const updatedRecipients = recipients.filter((_, i) => i !== index);
+    setRecipients(updatedRecipients);
+  };
+
+  const handleFileChange = (event) => {
+    setAttachments(event.target.files);
+  };
+
+  const sendEmail = async () => {
+    if (!department || !subject || !body || !date || !startTime || !endTime || recipients.length === 0) {
+      alert("All fields are required!");
+      return;
+    }
+
+    const formData = new FormData();
+    formData.append("program", program);
+    formData.append("department", department);
+    formData.append("subject", subject);
+    formData.append("body", body);
+    formData.append("date", date);
+    formData.append("startTime", startTime);
+    formData.append("endTime", endTime);
+    recipients.forEach((email) => formData.append("recipients", email));
+    agenda.forEach((item) => formData.append("agenda", item));
+    Array.from(attachments).forEach((file) => formData.append("attachments", file));
+
+    try {
+      const response = await axios.post("http://localhost:5000/api/send-email", formData, {
+        headers: { "Content-Type": "multipart/form-data" },
+      });
+      alert(response.data.message);
+    } catch (err) {
+      if (err.response?.status === 409) {
+        const conflictDetails = err.response.data.conflictDetails;
+        alert(`Conflict Detected:
+          Department: ${conflictDetails.department}
+          Date: ${conflictDetails.date}
+          Time: ${conflictDetails.startTime} - ${conflictDetails.endTime}
+          Recipients: ${conflictDetails.recipients.join(", ")}
+          Subject: ${conflictDetails.subject}
+        `);
+      } else {
+        alert(err.response?.data?.error || "Error sending email");
+      }
+    }
+  };
+
+  return (
+    <div className="page-container">
+      {/* Header Bar */}
+      <header className="header-bar">
+        <img src={image} alt="Left Logo" className="leftlogo" />
+        <h1 className="college-name">Somaiya Scheduler</h1>
+        <img src={somaiyatrust} alt="Right Logo" className="rightlogo" />
+      </header>
+
+      {/* Navigation Bar */}
+      <nav className="navbar">
+        <ul>
+          <li><Link to="/page2">Home</Link></li>
+          <li><Link to="/page3">Schedule</Link></li>
+          <li><a href="#">About</a></li>
+          <li><a href="#">Contact</a></li>
+          <li><Link to="/">Login/Signup</Link></li>
+        </ul>
+      </nav>
+
+      {/* Main Content Container */}
+      <div className="main-container">
+        {/* Stream Bar (Left Side) */}
+        <div className="stream-bar">
+          <h3>Streams</h3>
+          <ul>
+            {["Engineering & Technology", "Management", "Education", "Dharama", "Commerce", "Science", "Humanities", "Music", "Language"].map((stream) => (
+              <li key={stream} onClick={() => alert(`Selected: ${stream}`)}>{stream}</li>
+            ))}
+          </ul>
+        </div>
+
+        {/* Content Area (Right Side) */}
+        <div className="content-area">
+          <h1>BOS Email Management System</h1>
+          <label>Program:</label>
+          <select onChange={(e) => setProgram(e.target.value)} value={program}>
+            <option value="">Choose a Program</option>
+            {programs.map((prog, idx) => (
+              <option key={idx} value={prog}>
+                {prog}
+              </option>
+            ))}
+          </select>
+
+          <label>Department:</label>
+          <select onChange={(e) => setDepartment(e.target.value)} value={department}>
+            <option value="">Choose a Department</option>
+            {departments.map((dept, idx) => (
+              <option key={idx} value={dept}>
+                {dept}
+              </option>
+            ))}
+          </select>
+
+          <label>Subject:</label>
+          <input type="text" placeholder="Subject" value={subject} onChange={(e) => setSubject(e.target.value)} />
+
+          <label>Body:</label>
+          <textarea placeholder="Body" value={body} onChange={(e) => setBody(e.target.value)} />
+
+          <label>Agenda:</label>
+          {agenda.map((item, index) => (
+            <div key={index} style={{ display: "flex", alignItems: "center" }}>
+              <input
+                type="text"
+                placeholder="Agenda item"
+                value={item}
+                onChange={(e) => handleAgendaChange(index, e.target.value)}
+              />
+              <FaTimes
+                style={{ color: "red", cursor: "pointer", marginLeft: "10px" }}
+                onClick={() => removeAgenda(index)}
+              />
+            </div>
+          ))}
+          <button onClick={addAgenda}>+ Add Agenda</button>
+
+          <label>Date:</label>
+          <input type="date" value={date} onChange={(e) => setDate(e.target.value)} />
+
+          <label>Start Time:</label>
+          <input type="time" value={startTime} onChange={(e) => setStartTime(e.target.value)} />
+
+          <label>End Time:</label>
+          <input type="time" value={endTime} onChange={(e) => setEndTime(e.target.value)} />
+
+          <label>Recipient Emails:</label>
+          {recipients.map((email, index) => (
+            <div key={index} style={{ display: "flex", alignItems: "center" }}>
+              <input
+                type="email"
+                placeholder="Recipient Email"
+                value={email}
+                onChange={(e) => handleRecipientChange(index, e.target.value)}
+              />
+              <FaTimes
+                style={{ color: "red", cursor: "pointer", marginLeft: "10px" }}
+                onClick={() => removeRecipient(index)}
+              />
+            </div>
+          ))}
+          <button onClick={addRecipient}>+ Add Recipient</button>
+
+          <label>Attachments:</label>
+          <input type="file" multiple onChange={handleFileChange} />
+
+          <button onClick={sendEmail}>Send Email</button>
+        </div>
+      </div>
+
+      {/* Footer */}
+      <footer>
+        <div className="terms">
+          <a href="#">Terms and Policies</a>
+          <img src={redlines} alt="Footer Logo" className="footer-image" />
+        </div>
+      </footer>
+    </div>
+  );
+};
+
+export default Page4;
diff --git a/frontend/src/components/background.png b/frontend/src/components/background.png
new file mode 100644
index 0000000..e8971ee
Binary files /dev/null and b/frontend/src/components/background.png differ
diff --git a/frontend/src/components/campus.jpg b/frontend/src/components/campus.jpg
new file mode 100644
index 0000000..660b421
Binary files /dev/null and b/frontend/src/components/campus.jpg differ
diff --git a/frontend/src/components/image.png b/frontend/src/components/image.png
new file mode 100644
index 0000000..8342583
Binary files /dev/null and b/frontend/src/components/image.png differ
diff --git a/frontend/src/components/redlines.png b/frontend/src/components/redlines.png
new file mode 100644
index 0000000..22eafdb
Binary files /dev/null and b/frontend/src/components/redlines.png differ
diff --git a/frontend/src/components/somaiyatrust.png b/frontend/src/components/somaiyatrust.png
new file mode 100644
index 0000000..7a8c5fe
Binary files /dev/null and b/frontend/src/components/somaiyatrust.png differ
diff --git a/frontend/src/index.css b/frontend/src/index.css
new file mode 100644
index 0000000..ec2585e
--- /dev/null
+++ b/frontend/src/index.css
@@ -0,0 +1,13 @@
+body {
+  margin: 0;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
+    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
+    sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+code {
+  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
+    monospace;
+}
diff --git a/frontend/src/index.js b/frontend/src/index.js
new file mode 100644
index 0000000..d563c0f
--- /dev/null
+++ b/frontend/src/index.js
@@ -0,0 +1,17 @@
+import React from 'react';
+import ReactDOM from 'react-dom/client';
+import './index.css';
+import App from './App';
+import reportWebVitals from './reportWebVitals';
+
+const root = ReactDOM.createRoot(document.getElementById('root'));
+root.render(
+  <React.StrictMode>
+    <App />
+  </React.StrictMode>
+);
+
+// If you want to start measuring performance in your app, pass a function
+// to log results (for example: reportWebVitals(console.log))
+// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
+reportWebVitals();
diff --git a/frontend/src/logo.svg b/frontend/src/logo.svg
new file mode 100644
index 0000000..9dfc1c0
--- /dev/null
+++ b/frontend/src/logo.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 841.9 595.3"><g fill="#61DAFB"><path d="M666.3 296.5c0-32.5-40.7-63.3-103.1-82.4 14.4-63.6 8-114.2-20.2-130.4-6.5-3.8-14.1-5.6-22.4-5.6v22.3c4.6 0 8.3.9 11.4 2.6 13.6 7.8 19.5 37.5 14.9 75.7-1.1 9.4-2.9 19.3-5.1 29.4-19.6-4.8-41-8.5-63.5-10.9-13.5-18.5-27.5-35.3-41.6-50 32.6-30.3 63.2-46.9 84-46.9V78c-27.5 0-63.5 19.6-99.9 53.6-36.4-33.8-72.4-53.2-99.9-53.2v22.3c20.7 0 51.4 16.5 84 46.6-14 14.7-28 31.4-41.3 49.9-22.6 2.4-44 6.1-63.6 11-2.3-10-4-19.7-5.2-29-4.7-38.2 1.1-67.9 14.6-75.8 3-1.8 6.9-2.6 11.5-2.6V78.5c-8.4 0-16 1.8-22.6 5.6-28.1 16.2-34.4 66.7-19.9 130.1-62.2 19.2-102.7 49.9-102.7 82.3 0 32.5 40.7 63.3 103.1 82.4-14.4 63.6-8 114.2 20.2 130.4 6.5 3.8 14.1 5.6 22.5 5.6 27.5 0 63.5-19.6 99.9-53.6 36.4 33.8 72.4 53.2 99.9 53.2 8.4 0 16-1.8 22.6-5.6 28.1-16.2 34.4-66.7 19.9-130.1 62-19.1 102.5-49.9 102.5-82.3zm-130.2-66.7c-3.7 12.9-8.3 26.2-13.5 39.5-4.1-8-8.4-16-13.1-24-4.6-8-9.5-15.8-14.4-23.4 14.2 2.1 27.9 4.7 41 7.9zm-45.8 106.5c-7.8 13.5-15.8 26.3-24.1 38.2-14.9 1.3-30 2-45.2 2-15.1 0-30.2-.7-45-1.9-8.3-11.9-16.4-24.6-24.2-38-7.6-13.1-14.5-26.4-20.8-39.8 6.2-13.4 13.2-26.8 20.7-39.9 7.8-13.5 15.8-26.3 24.1-38.2 14.9-1.3 30-2 45.2-2 15.1 0 30.2.7 45 1.9 8.3 11.9 16.4 24.6 24.2 38 7.6 13.1 14.5 26.4 20.8 39.8-6.3 13.4-13.2 26.8-20.7 39.9zm32.3-13c5.4 13.4 10 26.8 13.8 39.8-13.1 3.2-26.9 5.9-41.2 8 4.9-7.7 9.8-15.6 14.4-23.7 4.6-8 8.9-16.1 13-24.1zM421.2 430c-9.3-9.6-18.6-20.3-27.8-32 9 .4 18.2.7 27.5.7 9.4 0 18.7-.2 27.8-.7-9 11.7-18.3 22.4-27.5 32zm-74.4-58.9c-14.2-2.1-27.9-4.7-41-7.9 3.7-12.9 8.3-26.2 13.5-39.5 4.1 8 8.4 16 13.1 24 4.7 8 9.5 15.8 14.4 23.4zM420.7 163c9.3 9.6 18.6 20.3 27.8 32-9-.4-18.2-.7-27.5-.7-9.4 0-18.7.2-27.8.7 9-11.7 18.3-22.4 27.5-32zm-74 58.9c-4.9 7.7-9.8 15.6-14.4 23.7-4.6 8-8.9 16-13 24-5.4-13.4-10-26.8-13.8-39.8 13.1-3.1 26.9-5.8 41.2-7.9zm-90.5 125.2c-35.4-15.1-58.3-34.9-58.3-50.6 0-15.7 22.9-35.6 58.3-50.6 8.6-3.7 18-7 27.7-10.1 5.7 19.6 13.2 40 22.5 60.9-9.2 20.8-16.6 41.1-22.2 60.6-9.9-3.1-19.3-6.5-28-10.2zM310 490c-13.6-7.8-19.5-37.5-14.9-75.7 1.1-9.4 2.9-19.3 5.1-29.4 19.6 4.8 41 8.5 63.5 10.9 13.5 18.5 27.5 35.3 41.6 50-32.6 30.3-63.2 46.9-84 46.9-4.5-.1-8.3-1-11.3-2.7zm237.2-76.2c4.7 38.2-1.1 67.9-14.6 75.8-3 1.8-6.9 2.6-11.5 2.6-20.7 0-51.4-16.5-84-46.6 14-14.7 28-31.4 41.3-49.9 22.6-2.4 44-6.1 63.6-11 2.3 10.1 4.1 19.8 5.2 29.1zm38.5-66.7c-8.6 3.7-18 7-27.7 10.1-5.7-19.6-13.2-40-22.5-60.9 9.2-20.8 16.6-41.1 22.2-60.6 9.9 3.1 19.3 6.5 28.1 10.2 35.4 15.1 58.3 34.9 58.3 50.6-.1 15.7-23 35.6-58.4 50.6zM320.8 78.4z"/><circle cx="420.9" cy="296.5" r="45.7"/><path d="M520.5 78.1z"/></g></svg>
\ No newline at end of file
diff --git a/frontend/src/reportWebVitals.js b/frontend/src/reportWebVitals.js
new file mode 100644
index 0000000..5253d3a
--- /dev/null
+++ b/frontend/src/reportWebVitals.js
@@ -0,0 +1,13 @@
+const reportWebVitals = onPerfEntry => {
+  if (onPerfEntry && onPerfEntry instanceof Function) {
+    import('web-vitals').then(({ getCLS, getFID, getFCP, getLCP, getTTFB }) => {
+      getCLS(onPerfEntry);
+      getFID(onPerfEntry);
+      getFCP(onPerfEntry);
+      getLCP(onPerfEntry);
+      getTTFB(onPerfEntry);
+    });
+  }
+};
+
+export default reportWebVitals;
diff --git a/frontend/src/setupTests.js b/frontend/src/setupTests.js
new file mode 100644
index 0000000..8f2609b
--- /dev/null
+++ b/frontend/src/setupTests.js
@@ -0,0 +1,5 @@
+// jest-dom adds custom jest matchers for asserting on DOM nodes.
+// allows you to do things like:
+// expect(element).toHaveTextContent(/react/i)
+// learn more: https://github.com/testing-library/jest-dom
+import '@testing-library/jest-dom';